diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arc/boot/dts/hsdk.dts linux-libre-5.1.21-gnu/arch/arc/boot/dts/hsdk.dts
--- linux-libre-5.1-gnu/arch/arc/boot/dts/hsdk.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arc/boot/dts/hsdk.dts	2019-07-28 02:28:39.000000000 -0400
@@ -187,6 +187,7 @@
 			interrupt-names = "macirq";
 			phy-mode = "rgmii";
 			snps,pbl = <32>;
+			snps,multicast-filter-bins = <256>;
 			clocks = <&gmacclk>;
 			clock-names = "stmmaceth";
 			phy-handle = <&phy0>;
@@ -195,6 +196,9 @@
 			mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */
 			dma-coherent;
 
+			tx-fifo-depth = <4096>;
+			rx-fifo-depth = <4096>;
+
 			mdio {
 				#address-cells = <1>;
 				#size-cells = <0>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arc/include/asm/cmpxchg.h linux-libre-5.1.21-gnu/arch/arc/include/asm/cmpxchg.h
--- linux-libre-5.1-gnu/arch/arc/include/asm/cmpxchg.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arc/include/asm/cmpxchg.h	2019-07-28 02:28:39.000000000 -0400
@@ -92,8 +92,11 @@ __cmpxchg(volatile void *ptr, unsigned l
 
 #endif /* CONFIG_ARC_HAS_LLSC */
 
-#define cmpxchg(ptr, o, n) ((typeof(*(ptr)))__cmpxchg((ptr), \
-				(unsigned long)(o), (unsigned long)(n)))
+#define cmpxchg(ptr, o, n) ({				\
+	(typeof(*(ptr)))__cmpxchg((ptr),		\
+				  (unsigned long)(o),	\
+				  (unsigned long)(n));	\
+})
 
 /*
  * atomic_cmpxchg is same as cmpxchg
@@ -198,8 +201,11 @@ static inline unsigned long __xchg(unsig
 	return __xchg_bad_pointer();
 }
 
-#define xchg(ptr, with) ((typeof(*(ptr)))__xchg((unsigned long)(with), (ptr), \
-						 sizeof(*(ptr))))
+#define xchg(ptr, with) ({				\
+	(typeof(*(ptr)))__xchg((unsigned long)(with),	\
+			       (ptr),			\
+			       sizeof(*(ptr)));		\
+})
 
 #endif /* CONFIG_ARC_PLAT_EZNPS */
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arc/kernel/unwind.c linux-libre-5.1.21-gnu/arch/arc/kernel/unwind.c
--- linux-libre-5.1-gnu/arch/arc/kernel/unwind.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arc/kernel/unwind.c	2019-07-28 02:28:39.000000000 -0400
@@ -184,11 +184,6 @@ static void *__init unw_hdr_alloc_early(
 	return memblock_alloc_from(sz, sizeof(unsigned int), MAX_DMA_ADDRESS);
 }
 
-static void *unw_hdr_alloc(unsigned long sz)
-{
-	return kmalloc(sz, GFP_KERNEL);
-}
-
 static void init_unwind_table(struct unwind_table *table, const char *name,
 			      const void *core_start, unsigned long core_size,
 			      const void *init_start, unsigned long init_size,
@@ -369,6 +364,10 @@ ret_err:
 }
 
 #ifdef CONFIG_MODULES
+static void *unw_hdr_alloc(unsigned long sz)
+{
+	return kmalloc(sz, GFP_KERNEL);
+}
 
 static struct unwind_table *last_table;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arc/mm/fault.c linux-libre-5.1.21-gnu/arch/arc/mm/fault.c
--- linux-libre-5.1-gnu/arch/arc/mm/fault.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arc/mm/fault.c	2019-07-28 02:28:39.000000000 -0400
@@ -66,7 +66,7 @@ void do_page_fault(unsigned long address
 	struct vm_area_struct *vma = NULL;
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->mm;
-	int si_code = 0;
+	int si_code = SEGV_MAPERR;
 	int ret;
 	vm_fault_t fault;
 	int write = regs->ecr_cause & ECR_C_PROTV_STORE;  /* ST/EX */
@@ -81,16 +81,14 @@ void do_page_fault(unsigned long address
 	 * only copy the information from the master page table,
 	 * nothing more.
 	 */
-	if (address >= VMALLOC_START) {
+	if (address >= VMALLOC_START && !user_mode(regs)) {
 		ret = handle_kernel_vaddr_fault(address);
 		if (unlikely(ret))
-			goto bad_area_nosemaphore;
+			goto no_context;
 		else
 			return;
 	}
 
-	si_code = SEGV_MAPERR;
-
 	/*
 	 * If we're in an interrupt or have no user
 	 * context, we must not take the fault..
@@ -198,7 +196,6 @@ good_area:
 bad_area:
 	up_read(&mm->mmap_sem);
 
-bad_area_nosemaphore:
 	/* User mode accesses just cause a SIGSEGV */
 	if (user_mode(regs)) {
 		tsk->thread.fault_address = address;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arc/mm/tlb.c linux-libre-5.1.21-gnu/arch/arc/mm/tlb.c
--- linux-libre-5.1-gnu/arch/arc/mm/tlb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arc/mm/tlb.c	2019-07-28 02:28:39.000000000 -0400
@@ -911,9 +911,11 @@ void do_tlb_overlap_fault(unsigned long
 			  struct pt_regs *regs)
 {
 	struct cpuinfo_arc_mmu *mmu = &cpuinfo_arc700[smp_processor_id()].mmu;
-	unsigned int pd0[mmu->ways];
 	unsigned long flags;
-	int set;
+	int set, n_ways = mmu->ways;
+
+	n_ways = min(n_ways, 4);
+	BUG_ON(mmu->ways > 4);
 
 	local_irq_save(flags);
 
@@ -921,9 +923,10 @@ void do_tlb_overlap_fault(unsigned long
 	for (set = 0; set < mmu->sets; set++) {
 
 		int is_valid, way;
+		unsigned int pd0[4];
 
 		/* read out all the ways of current set */
-		for (way = 0, is_valid = 0; way < mmu->ways; way++) {
+		for (way = 0, is_valid = 0; way < n_ways; way++) {
 			write_aux_reg(ARC_REG_TLBINDEX,
 					  SET_WAY_TO_IDX(mmu, set, way));
 			write_aux_reg(ARC_REG_TLBCOMMAND, TLBRead);
@@ -937,14 +940,14 @@ void do_tlb_overlap_fault(unsigned long
 			continue;
 
 		/* Scan the set for duplicate ways: needs a nested loop */
-		for (way = 0; way < mmu->ways - 1; way++) {
+		for (way = 0; way < n_ways - 1; way++) {
 
 			int n;
 
 			if (!pd0[way])
 				continue;
 
-			for (n = way + 1; n < mmu->ways; n++) {
+			for (n = way + 1; n < n_ways; n++) {
 				if (pd0[way] != pd0[n])
 					continue;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/am335x-pcm-953.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/am335x-pcm-953.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/am335x-pcm-953.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/am335x-pcm-953.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -197,7 +197,7 @@
 	bus-width = <4>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc1_pins>;
-	cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
+	cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/am335x-wega.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/am335x-wega.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/am335x-wega.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/am335x-wega.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -157,7 +157,7 @@
 	bus-width = <4>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc1_pins>;
-	cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
+	cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/am57xx-idk-common.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/am57xx-idk-common.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/am57xx-idk-common.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/am57xx-idk-common.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -420,6 +420,7 @@
 	vqmmc-supply = <&ldo1_reg>;
 	bus-width = <4>;
 	cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
+	no-1-8-v;
 };
 
 &mmc2 {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/armada-xp-98dx3236.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/armada-xp-98dx3236.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/armada-xp-98dx3236.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/armada-xp-98dx3236.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -336,3 +336,11 @@
 	status = "disabled";
 };
 
+&uart0 {
+	compatible = "marvell,armada-38x-uart";
+};
+
+&uart1 {
+	compatible = "marvell,armada-38x-uart";
+};
+
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/dra76x-mmc-iodelay.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -22,7 +22,7 @@
  *
  * Datamanual Revisions:
  *
- * DRA76x Silicon Revision 1.0: SPRS993A, Revised July 2017
+ * DRA76x Silicon Revision 1.0: SPRS993E, Revised December 2018
  *
  */
 
@@ -169,25 +169,25 @@
 	/* Corresponds to MMC2_HS200_MANUAL1 in datamanual */
 	mmc2_iodelay_hs200_conf: mmc2_iodelay_hs200_conf {
 		pinctrl-pin-array = <
-			0x190 A_DELAY_PS(384) G_DELAY_PS(0)       /* CFG_GPMC_A19_OEN */
-			0x194 A_DELAY_PS(0) G_DELAY_PS(174)       /* CFG_GPMC_A19_OUT */
-			0x1a8 A_DELAY_PS(410) G_DELAY_PS(0)       /* CFG_GPMC_A20_OEN */
-			0x1ac A_DELAY_PS(85) G_DELAY_PS(0)        /* CFG_GPMC_A20_OUT */
-			0x1b4 A_DELAY_PS(468) G_DELAY_PS(0)       /* CFG_GPMC_A21_OEN */
-			0x1b8 A_DELAY_PS(139) G_DELAY_PS(0)       /* CFG_GPMC_A21_OUT */
-			0x1c0 A_DELAY_PS(676) G_DELAY_PS(0)       /* CFG_GPMC_A22_OEN */
-			0x1c4 A_DELAY_PS(69) G_DELAY_PS(0)        /* CFG_GPMC_A22_OUT */
-			0x1d0 A_DELAY_PS(1062) G_DELAY_PS(154)	  /* CFG_GPMC_A23_OUT */
-			0x1d8 A_DELAY_PS(640) G_DELAY_PS(0)       /* CFG_GPMC_A24_OEN */
-			0x1dc A_DELAY_PS(0) G_DELAY_PS(0)         /* CFG_GPMC_A24_OUT */
-			0x1e4 A_DELAY_PS(356) G_DELAY_PS(0)       /* CFG_GPMC_A25_OEN */
-			0x1e8 A_DELAY_PS(0) G_DELAY_PS(0)         /* CFG_GPMC_A25_OUT */
-			0x1f0 A_DELAY_PS(579) G_DELAY_PS(0)       /* CFG_GPMC_A26_OEN */
-			0x1f4 A_DELAY_PS(0) G_DELAY_PS(0)         /* CFG_GPMC_A26_OUT */
-			0x1fc A_DELAY_PS(435) G_DELAY_PS(0)       /* CFG_GPMC_A27_OEN */
-			0x200 A_DELAY_PS(36) G_DELAY_PS(0)        /* CFG_GPMC_A27_OUT */
-			0x364 A_DELAY_PS(759) G_DELAY_PS(0)       /* CFG_GPMC_CS1_OEN */
-			0x368 A_DELAY_PS(72) G_DELAY_PS(0)        /* CFG_GPMC_CS1_OUT */
+			0x190 A_DELAY_PS(384) G_DELAY_PS(0)	/* CFG_GPMC_A19_OEN */
+			0x194 A_DELAY_PS(350) G_DELAY_PS(174)	/* CFG_GPMC_A19_OUT */
+			0x1a8 A_DELAY_PS(410) G_DELAY_PS(0)	/* CFG_GPMC_A20_OEN */
+			0x1ac A_DELAY_PS(335) G_DELAY_PS(0)	/* CFG_GPMC_A20_OUT */
+			0x1b4 A_DELAY_PS(468) G_DELAY_PS(0)	/* CFG_GPMC_A21_OEN */
+			0x1b8 A_DELAY_PS(339) G_DELAY_PS(0)	/* CFG_GPMC_A21_OUT */
+			0x1c0 A_DELAY_PS(676) G_DELAY_PS(0)	/* CFG_GPMC_A22_OEN */
+			0x1c4 A_DELAY_PS(219) G_DELAY_PS(0)	/* CFG_GPMC_A22_OUT */
+			0x1d0 A_DELAY_PS(1062) G_DELAY_PS(154)	/* CFG_GPMC_A23_OUT */
+			0x1d8 A_DELAY_PS(640) G_DELAY_PS(0)	/* CFG_GPMC_A24_OEN */
+			0x1dc A_DELAY_PS(150) G_DELAY_PS(0)	/* CFG_GPMC_A24_OUT */
+			0x1e4 A_DELAY_PS(356) G_DELAY_PS(0)	/* CFG_GPMC_A25_OEN */
+			0x1e8 A_DELAY_PS(150) G_DELAY_PS(0)	/* CFG_GPMC_A25_OUT */
+			0x1f0 A_DELAY_PS(579) G_DELAY_PS(0)	/* CFG_GPMC_A26_OEN */
+			0x1f4 A_DELAY_PS(200) G_DELAY_PS(0)	/* CFG_GPMC_A26_OUT */
+			0x1fc A_DELAY_PS(435) G_DELAY_PS(0)	/* CFG_GPMC_A27_OEN */
+			0x200 A_DELAY_PS(236) G_DELAY_PS(0)	/* CFG_GPMC_A27_OUT */
+			0x364 A_DELAY_PS(759) G_DELAY_PS(0)	/* CFG_GPMC_CS1_OEN */
+			0x368 A_DELAY_PS(372) G_DELAY_PS(0)	/* CFG_GPMC_CS1_OUT */
 	      >;
 	};
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/dra7-l4.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/dra7-l4.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/dra7-l4.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/dra7-l4.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -4450,8 +4450,6 @@
 			timer12: timer@0 {
 				compatible = "ti,omap5430-timer";
 				reg = <0x0 0x80>;
-				clocks = <&wkupaon_clkctrl DRA7_WKUPAON_TIMER12_CLKCTRL 24>;
-				clock-names = "fck";
 				interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
 				ti,timer-alwon;
 				ti,timer-secure;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/exynos5260.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/exynos5260.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/exynos5260.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/exynos5260.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -223,7 +223,7 @@
 			wakeup-interrupt-controller {
 				compatible = "samsung,exynos4210-wakeup-eint";
 				interrupt-parent = <&gic>;
-				interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
 			};
 		};
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/exynos5420-arndale-octa.dts linux-libre-5.1.21-gnu/arch/arm/boot/dts/exynos5420-arndale-octa.dts
--- linux-libre-5.1-gnu/arch/arm/boot/dts/exynos5420-arndale-octa.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/exynos5420-arndale-octa.dts	2019-07-28 02:28:39.000000000 -0400
@@ -107,6 +107,7 @@
 				regulator-name = "PVDD_APIO_1V8";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
 			};
 
 			ldo3_reg: LDO3 {
@@ -145,6 +146,7 @@
 				regulator-name = "PVDD_ABB_1V8";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
 			};
 
 			ldo9_reg: LDO9 {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/exynos5422-odroidxu3-audio.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -22,11 +22,12 @@
 			"Headphone Jack", "HPL",
 			"Headphone Jack", "HPR",
 			"Headphone Jack", "MICBIAS",
-			"IN1", "Headphone Jack",
+			"IN12", "Headphone Jack",
 			"Speakers", "SPKL",
 			"Speakers", "SPKR",
 			"I2S Playback", "Mixer DAI TX",
-			"HiFi Playback", "Mixer DAI TX";
+			"HiFi Playback", "Mixer DAI TX",
+			"Mixer DAI RX", "HiFi Capture";
 
 		assigned-clocks = <&clock CLK_MOUT_EPLL>,
 				<&clock CLK_MOUT_MAU_EPLL>,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/gemini-dlink-dir-685.dts linux-libre-5.1.21-gnu/arch/arm/boot/dts/gemini-dlink-dir-685.dts
--- linux-libre-5.1-gnu/arch/arm/boot/dts/gemini-dlink-dir-685.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/gemini-dlink-dir-685.dts	2019-07-28 02:28:39.000000000 -0400
@@ -64,7 +64,7 @@
 		gpio-sck = <&gpio1 5 GPIO_ACTIVE_HIGH>;
 		gpio-miso = <&gpio1 8 GPIO_ACTIVE_HIGH>;
 		gpio-mosi = <&gpio1 7 GPIO_ACTIVE_HIGH>;
-		cs-gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
+		cs-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
 		num-chipselects = <1>;
 
 		panel: display@0 {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/gemini-dlink-dns-313.dts linux-libre-5.1.21-gnu/arch/arm/boot/dts/gemini-dlink-dns-313.dts
--- linux-libre-5.1-gnu/arch/arm/boot/dts/gemini-dlink-dns-313.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/gemini-dlink-dns-313.dts	2019-07-28 02:28:39.000000000 -0400
@@ -11,7 +11,7 @@
 
 / {
 	model = "D-Link DNS-313 1-Bay Network Storage Enclosure";
-	compatible = "dlink,dir-313", "cortina,gemini";
+	compatible = "dlink,dns-313", "cortina,gemini";
 	#address-cells = <1>;
 	#size-cells = <1>;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx50.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx50.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx50.dtsi	2019-05-05 21:24:10.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx50.dtsi	2019-07-28 13:25:26.000000000 -0400
@@ -411,7 +411,7 @@
 				reg = <0x63fb0000 0x4000>;
 				interrupts = <6>;
 				clocks = <&clks IMX5_CLK_SDMA_GATE>,
-					 <&clks IMX5_CLK_SDMA_GATE>;
+					 <&clks IMX5_CLK_AHB>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
 				fsl,sdma-ram-script-name = "/*(DEBLOBBED)*/";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx51.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx51.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx51.dtsi	2019-05-05 21:24:13.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx51.dtsi	2019-07-28 13:25:29.000000000 -0400
@@ -489,7 +489,7 @@
 				reg = <0x83fb0000 0x4000>;
 				interrupts = <6>;
 				clocks = <&clks IMX5_CLK_SDMA_GATE>,
-					 <&clks IMX5_CLK_SDMA_GATE>;
+					 <&clks IMX5_CLK_AHB>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
 				fsl,sdma-ram-script-name = "/*(DEBLOBBED)*/";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx53.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx53.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx53.dtsi	2019-05-05 21:24:15.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx53.dtsi	2019-07-28 13:25:32.000000000 -0400
@@ -702,7 +702,7 @@
 				reg = <0x63fb0000 0x4000>;
 				interrupts = <6>;
 				clocks = <&clks IMX5_CLK_SDMA_GATE>,
-					 <&clks IMX5_CLK_SDMA_GATE>;
+					 <&clks IMX5_CLK_AHB>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
 				fsl,sdma-ram-script-name = "/*(DEBLOBBED)*/";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6dl-riotboard.dts linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6dl-riotboard.dts
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6dl-riotboard.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6dl-riotboard.dts	2019-07-28 02:28:39.000000000 -0400
@@ -92,7 +92,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
 	interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
 			      <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -88,6 +88,7 @@
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 		gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <70000>;
 		enable-active-high;
 	};
 
@@ -99,6 +100,7 @@
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <70000>;
 		enable-active-high;
 		regulator-always-on;
 	};
@@ -216,7 +218,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-reset-duration = <10>;
 	phy-reset-gpios = <&gpio1 24 GPIO_ACTIVE_LOW>;
 	phy-supply = <&reg_enet>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6q-ba16.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6q-ba16.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6q-ba16.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6q-ba16.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -171,7 +171,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	status = "okay";
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-apf6.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-apf6.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-apf6.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-apf6.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -51,7 +51,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-reset-duration = <10>;
 	phy-reset-gpios = <&gpio1 24 GPIO_ACTIVE_LOW>;
 	status = "okay";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl.dtsi	2019-05-05 21:24:21.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl.dtsi	2019-07-28 13:25:39.000000000 -0400
@@ -918,7 +918,7 @@
 				compatible = "fsl,imx6q-sdma", "fsl,imx35-sdma";
 				reg = <0x020ec000 0x4000>;
 				interrupts = <0 2 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&clks IMX6QDL_CLK_SDMA>,
+				clocks = <&clks IMX6QDL_CLK_IPG>,
 					 <&clks IMX6QDL_CLK_SDMA>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -292,7 +292,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
 			      <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
 	fsl,err006687-workaround-present;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-sabresd.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-sabresd.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-sabresd.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -202,7 +202,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-sr-som.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-sr-som.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-sr-som.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-sr-som.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -53,7 +53,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_microsom_enet_ar8035>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-reset-duration = <2>;
 	phy-reset-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
 	status = "okay";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-wandboard.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6qdl-wandboard.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6qdl-wandboard.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -224,7 +224,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-reset-gpios = <&gpio3 29 GPIO_ACTIVE_LOW>;
 	interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
 			      <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6q-marsboard.dts linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6q-marsboard.dts
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6q-marsboard.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6q-marsboard.dts	2019-07-28 02:28:39.000000000 -0400
@@ -110,7 +110,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6q-tbs2910.dts linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6q-tbs2910.dts
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6q-tbs2910.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6q-tbs2910.dts	2019-07-28 02:28:39.000000000 -0400
@@ -98,7 +98,7 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sl.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sl.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sl.dtsi	2019-05-05 21:24:25.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sl.dtsi	2019-07-28 13:25:42.000000000 -0400
@@ -741,7 +741,7 @@
 				reg = <0x020ec000 0x4000>;
 				interrupts = <0 2 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks IMX6SL_CLK_SDMA>,
-					 <&clks IMX6SL_CLK_SDMA>;
+					 <&clks IMX6SL_CLK_AHB>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
 				/* imx6sl reuses imx6q sdma firmware */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sll.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sll.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sll.dtsi	2019-05-05 21:24:27.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sll.dtsi	2019-07-28 13:25:46.000000000 -0400
@@ -621,7 +621,7 @@
 				compatible = "fsl,imx6sll-sdma", "fsl,imx35-sdma";
 				reg = <0x020ec000 0x4000>;
 				interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&clks IMX6SLL_CLK_SDMA>,
+				clocks = <&clks IMX6SLL_CLK_IPG>,
 					 <&clks IMX6SLL_CLK_SDMA>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sx.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sx.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sx.dtsi	2019-05-05 21:24:31.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sx.dtsi	2019-07-28 13:25:50.000000000 -0400
@@ -820,7 +820,7 @@
 				compatible = "fsl,imx6sx-sdma", "fsl,imx6q-sdma";
 				reg = <0x020ec000 0x4000>;
 				interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&clks IMX6SX_CLK_SDMA>,
+				clocks = <&clks IMX6SX_CLK_IPG>,
 					 <&clks IMX6SX_CLK_SDMA>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sx-sabreauto.dts linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sx-sabreauto.dts
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sx-sabreauto.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sx-sabreauto.dts	2019-07-28 02:28:39.000000000 -0400
@@ -75,7 +75,7 @@
 &fec1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet1>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy1>;
 	fsl,magic-packet;
 	status = "okay";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sx-sdb.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sx-sdb.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6sx-sdb.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6sx-sdb.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -191,7 +191,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet1>;
 	phy-supply = <&reg_enet_3v3>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy1>;
 	phy-reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
 	status = "okay";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx6ul.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6ul.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx6ul.dtsi	2019-05-05 21:24:34.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx6ul.dtsi	2019-07-28 13:25:53.000000000 -0400
@@ -358,7 +358,7 @@
 			pwm1: pwm@2080000 {
 				compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
 				reg = <0x02080000 0x4000>;
-				interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+				interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks IMX6UL_CLK_PWM1>,
 					 <&clks IMX6UL_CLK_PWM1>;
 				clock-names = "ipg", "per";
@@ -369,7 +369,7 @@
 			pwm2: pwm@2084000 {
 				compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
 				reg = <0x02084000 0x4000>;
-				interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
+				interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks IMX6UL_CLK_PWM2>,
 					 <&clks IMX6UL_CLK_PWM2>;
 				clock-names = "ipg", "per";
@@ -380,7 +380,7 @@
 			pwm3: pwm@2088000 {
 				compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
 				reg = <0x02088000 0x4000>;
-				interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+				interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks IMX6UL_CLK_PWM3>,
 					 <&clks IMX6UL_CLK_PWM3>;
 				clock-names = "ipg", "per";
@@ -391,7 +391,7 @@
 			pwm4: pwm@208c000 {
 				compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
 				reg = <0x0208c000 0x4000>;
-				interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+				interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks IMX6UL_CLK_PWM4>,
 					 <&clks IMX6UL_CLK_PWM4>;
 				clock-names = "ipg", "per";
@@ -708,7 +708,7 @@
 					     "fsl,imx35-sdma";
 				reg = <0x020ec000 0x4000>;
 				interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&clks IMX6UL_CLK_SDMA>,
+				clocks = <&clks IMX6UL_CLK_IPG>,
 					 <&clks IMX6UL_CLK_SDMA>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx7d-pico.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx7d-pico.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx7d-pico.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx7d-pico.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -92,7 +92,7 @@
 			  <&clks IMX7D_ENET1_TIME_ROOT_CLK>;
 	assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>;
 	assigned-clock-rates = <0>, <100000000>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy0>;
 	fsl,magic-packet;
 	phy-reset-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/imx7s.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx7s.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/imx7s.dtsi	2019-05-05 21:24:37.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/imx7s.dtsi	2019-07-28 13:25:58.000000000 -0400
@@ -1067,8 +1067,8 @@
 				compatible = "fsl,imx7d-sdma", "fsl,imx35-sdma";
 				reg = <0x30bd0000 0x10000>;
 				interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&clks IMX7D_SDMA_CORE_CLK>,
-					 <&clks IMX7D_AHB_CHANNEL_ROOT_CLK>;
+				clocks = <&clks IMX7D_IPG_ROOT_CLK>,
+					 <&clks IMX7D_SDMA_CORE_CLK>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
 				fsl,sdma-ram-script-name = "/*(DEBLOBBED)*/";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/meson8b.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/meson8b.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/meson8b.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/meson8b.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -163,23 +163,23 @@
 
 		opp-255000000 {
 			opp-hz = /bits/ 64 <255000000>;
-			opp-microvolt = <1150000>;
+			opp-microvolt = <1100000>;
 		};
 		opp-364300000 {
 			opp-hz = /bits/ 64 <364300000>;
-			opp-microvolt = <1150000>;
+			opp-microvolt = <1100000>;
 		};
 		opp-425000000 {
 			opp-hz = /bits/ 64 <425000000>;
-			opp-microvolt = <1150000>;
+			opp-microvolt = <1100000>;
 		};
 		opp-510000000 {
 			opp-hz = /bits/ 64 <510000000>;
-			opp-microvolt = <1150000>;
+			opp-microvolt = <1100000>;
 		};
 		opp-637500000 {
 			opp-hz = /bits/ 64 <637500000>;
-			opp-microvolt = <1150000>;
+			opp-microvolt = <1100000>;
 			turbo-mode;
 		};
 	};
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/meson8.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/meson8.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/meson8.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/meson8.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -248,8 +248,8 @@
 				     <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>,
@@ -264,7 +264,6 @@
 			clocks = <&clkc CLKID_CLK81>, <&clkc CLKID_MALI>;
 			clock-names = "bus", "core";
 			operating-points-v2 = <&gpu_opp_table>;
-			switch-delay = <0xffff>;
 		};
 	};
 }; /* end of / */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/boot/dts/qcom-ipq4019.dtsi linux-libre-5.1.21-gnu/arch/arm/boot/dts/qcom-ipq4019.dtsi
--- linux-libre-5.1-gnu/arch/arm/boot/dts/qcom-ipq4019.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/boot/dts/qcom-ipq4019.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -400,8 +400,8 @@
 			#address-cells = <3>;
 			#size-cells = <2>;
 
-			ranges = <0x81000000 0 0x40200000 0x40200000 0 0x00100000
-				  0x82000000 0 0x40300000 0x40300000 0 0x400000>;
+			ranges = <0x81000000 0 0x40200000 0x40200000 0 0x00100000>,
+				 <0x82000000 0 0x40300000 0x40300000 0 0x00d00000>;
 
 			interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "msi";
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/configs/mvebu_v7_defconfig linux-libre-5.1.21-gnu/arch/arm/configs/mvebu_v7_defconfig
--- linux-libre-5.1-gnu/arch/arm/configs/mvebu_v7_defconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/configs/mvebu_v7_defconfig	2019-07-28 02:28:39.000000000 -0400
@@ -131,6 +131,7 @@ CONFIG_MV_XOR=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_MEMORY=y
 CONFIG_PWM=y
+CONFIG_PHY_MVEBU_A38X_COMPHY=y
 CONFIG_EXT4_FS=y
 CONFIG_ISO9660_FS=y
 CONFIG_JOLIET=y
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/crypto/aes-neonbs-glue.c linux-libre-5.1.21-gnu/arch/arm/crypto/aes-neonbs-glue.c
--- linux-libre-5.1-gnu/arch/arm/crypto/aes-neonbs-glue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/crypto/aes-neonbs-glue.c	2019-07-28 02:28:39.000000000 -0400
@@ -278,6 +278,8 @@ static int __xts_crypt(struct skcipher_r
 	int err;
 
 	err = skcipher_walk_virt(&walk, req, true);
+	if (err)
+		return err;
 
 	crypto_cipher_encrypt_one(ctx->tweak_tfm, walk.iv, walk.iv);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/include/asm/cp15.h linux-libre-5.1.21-gnu/arch/arm/include/asm/cp15.h
--- linux-libre-5.1-gnu/arch/arm/include/asm/cp15.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/include/asm/cp15.h	2019-07-28 02:28:39.000000000 -0400
@@ -68,6 +68,8 @@
 #define BPIALL				__ACCESS_CP15(c7, 0, c5, 6)
 #define ICIALLU				__ACCESS_CP15(c7, 0, c5, 0)
 
+#define CNTVCT				__ACCESS_CP15_64(1, c14)
+
 extern unsigned long cr_alignment;	/* defined in entry-armv.S */
 
 static inline unsigned long get_cr(void)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/include/asm/hardirq.h linux-libre-5.1.21-gnu/arch/arm/include/asm/hardirq.h
--- linux-libre-5.1-gnu/arch/arm/include/asm/hardirq.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/include/asm/hardirq.h	2019-07-28 02:28:39.000000000 -0400
@@ -6,6 +6,7 @@
 #include <linux/threads.h>
 #include <asm/irq.h>
 
+/* number of IPIS _not_ including IPI_CPU_BACKTRACE */
 #define NR_IPI	7
 
 typedef struct {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/kernel/smp.c linux-libre-5.1.21-gnu/arch/arm/kernel/smp.c
--- linux-libre-5.1-gnu/arch/arm/kernel/smp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/kernel/smp.c	2019-07-28 02:28:39.000000000 -0400
@@ -70,6 +70,10 @@ enum ipi_msg_type {
 	IPI_CPU_STOP,
 	IPI_IRQ_WORK,
 	IPI_COMPLETION,
+	/*
+	 * CPU_BACKTRACE is special and not included in NR_IPI
+	 * or tracable with trace_ipi_*
+	 */
 	IPI_CPU_BACKTRACE,
 	/*
 	 * SGI8-15 can be reserved by secure firmware, and thus may
@@ -797,7 +801,7 @@ core_initcall(register_cpufreq_notifier)
 
 static void raise_nmi(cpumask_t *mask)
 {
-	smp_cross_call(mask, IPI_CPU_BACKTRACE);
+	__smp_cross_call(mask, IPI_CPU_BACKTRACE);
 }
 
 void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/kvm/hyp/Makefile linux-libre-5.1.21-gnu/arch/arm/kvm/hyp/Makefile
--- linux-libre-5.1-gnu/arch/arm/kvm/hyp/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/kvm/hyp/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -11,6 +11,7 @@ CFLAGS_ARMV7VE		   :=$(call cc-option, -
 
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
+obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/aarch32.o
 
 obj-$(CONFIG_KVM_ARM_HOST) += tlb.o
 obj-$(CONFIG_KVM_ARM_HOST) += cp15-sr.o
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/mach-davinci/board-da850-evm.c linux-libre-5.1.21-gnu/arch/arm/mach-davinci/board-da850-evm.c
--- linux-libre-5.1-gnu/arch/arm/mach-davinci/board-da850-evm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/mach-davinci/board-da850-evm.c	2019-07-28 02:28:39.000000000 -0400
@@ -1479,6 +1479,8 @@ static __init void da850_evm_init(void)
 	if (ret)
 		pr_warn("%s: dsp/rproc registration failed: %d\n",
 			__func__, ret);
+
+	regulator_has_full_constraints();
 }
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/mach-davinci/devices-da8xx.c linux-libre-5.1.21-gnu/arch/arm/mach-davinci/devices-da8xx.c
--- linux-libre-5.1-gnu/arch/arm/mach-davinci/devices-da8xx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/mach-davinci/devices-da8xx.c	2019-07-28 02:28:39.000000000 -0400
@@ -686,6 +686,9 @@ static struct platform_device da8xx_lcdc
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(da8xx_lcdc_resources),
 	.resource	= da8xx_lcdc_resources,
+	.dev		= {
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	}
 };
 
 int __init da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/mach-exynos/firmware.c linux-libre-5.1.21-gnu/arch/arm/mach-exynos/firmware.c
--- linux-libre-5.1-gnu/arch/arm/mach-exynos/firmware.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/mach-exynos/firmware.c	2019-07-28 02:28:39.000000000 -0400
@@ -196,6 +196,7 @@ bool __init exynos_secure_firmware_avail
 		return false;
 
 	addr = of_get_address(nd, 0, NULL, NULL);
+	of_node_put(nd);
 	if (!addr) {
 		pr_err("%s: No address specified.\n", __func__);
 		return false;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/mach-exynos/suspend.c linux-libre-5.1.21-gnu/arch/arm/mach-exynos/suspend.c
--- linux-libre-5.1-gnu/arch/arm/mach-exynos/suspend.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/mach-exynos/suspend.c	2019-07-28 02:28:39.000000000 -0400
@@ -444,8 +444,27 @@ early_wakeup:
 
 static void exynos5420_prepare_pm_resume(void)
 {
+	unsigned int mpidr, cluster;
+
+	mpidr = read_cpuid_mpidr();
+	cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+
 	if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM))
 		WARN_ON(mcpm_cpu_powered_up());
+
+	if (IS_ENABLED(CONFIG_HW_PERF_EVENTS) && cluster != 0) {
+		/*
+		 * When system is resumed on the LITTLE/KFC core (cluster 1),
+		 * the DSCR is not properly updated until the power is turned
+		 * on also for the cluster 0. Enable it for a while to
+		 * propagate the SPNIDEN and SPIDEN signals from Secure JTAG
+		 * block and avoid undefined instruction issue on CP14 reset.
+		 */
+		pmu_raw_writel(S5P_CORE_LOCAL_PWR_EN,
+				EXYNOS_COMMON_CONFIGURATION(0));
+		pmu_raw_writel(0,
+				EXYNOS_COMMON_CONFIGURATION(0));
+	}
 }
 
 static void exynos5420_pm_resume(void)
@@ -639,8 +658,10 @@ void __init exynos_pm_init(void)
 
 	if (WARN_ON(!of_find_property(np, "interrupt-controller", NULL))) {
 		pr_warn("Outdated DT detected, suspend/resume will NOT work\n");
+		of_node_put(np);
 		return;
 	}
+	of_node_put(np);
 
 	pm_data = (const struct exynos_pm_data *) match->data;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/mach-imx/cpuidle-imx6sx.c linux-libre-5.1.21-gnu/arch/arm/mach-imx/cpuidle-imx6sx.c
--- linux-libre-5.1-gnu/arch/arm/mach-imx/cpuidle-imx6sx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/mach-imx/cpuidle-imx6sx.c	2019-07-28 02:28:39.000000000 -0400
@@ -15,6 +15,7 @@
 
 #include "common.h"
 #include "cpuidle.h"
+#include "hardware.h"
 
 static int imx6sx_idle_finish(unsigned long val)
 {
@@ -110,7 +111,7 @@ int __init imx6sx_cpuidle_init(void)
 	 * except for power up sw2iso which need to be
 	 * larger than LDO ramp up time.
 	 */
-	imx_gpc_set_arm_power_up_timing(0xf, 1);
+	imx_gpc_set_arm_power_up_timing(cpu_is_imx6sx() ? 0xf : 0x2, 1);
 	imx_gpc_set_arm_power_down_timing(1, 1);
 
 	return cpuidle_register(&imx6sx_cpuidle_driver, NULL);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/mach-omap2/pm33xx-core.c linux-libre-5.1.21-gnu/arch/arm/mach-omap2/pm33xx-core.c
--- linux-libre-5.1-gnu/arch/arm/mach-omap2/pm33xx-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/mach-omap2/pm33xx-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -51,10 +51,12 @@ static int amx3_common_init(void)
 
 	/* CEFUSE domain can be turned off post bootup */
 	cefuse_pwrdm = pwrdm_lookup("cefuse_pwrdm");
-	if (cefuse_pwrdm)
-		omap_set_pwrdm_state(cefuse_pwrdm, PWRDM_POWER_OFF);
-	else
+	if (!cefuse_pwrdm)
 		pr_err("PM: Failed to get cefuse_pwrdm\n");
+	else if (omap_type() != OMAP2_DEVICE_TYPE_GP)
+		pr_info("PM: Leaving EFUSE power domain active\n");
+	else
+		omap_set_pwrdm_state(cefuse_pwrdm, PWRDM_POWER_OFF);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/mach-omap2/prm3xxx.c linux-libre-5.1.21-gnu/arch/arm/mach-omap2/prm3xxx.c
--- linux-libre-5.1-gnu/arch/arm/mach-omap2/prm3xxx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/mach-omap2/prm3xxx.c	2019-07-28 02:28:39.000000000 -0400
@@ -433,7 +433,7 @@ static void omap3_prm_reconfigure_io_cha
  * registers, and omap3xxx_prm_reconfigure_io_chain() must be called.
  * No return value.
  */
-static void __init omap3xxx_prm_enable_io_wakeup(void)
+static void omap3xxx_prm_enable_io_wakeup(void)
 {
 	if (prm_features & PRM_HAS_IO_WAKEUP)
 		omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c linux-libre-5.1.21-gnu/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
--- linux-libre-5.1-gnu/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c	2019-07-28 02:28:39.000000000 -0400
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * R-Car Generation 2 da9063/da9210 regulator quirk
+ * R-Car Generation 2 da9063(L)/da9210 regulator quirk
  *
  * Certain Gen2 development boards have an da9063 and one or more da9210
  * regulators. All of these regulators have their interrupt request lines
@@ -65,6 +65,7 @@ static struct i2c_msg da9210_msg = {
 
 static const struct of_device_id rcar_gen2_quirk_match[] = {
 	{ .compatible = "dlg,da9063", .data = &da9063_msg },
+	{ .compatible = "dlg,da9063l", .data = &da9063_msg },
 	{ .compatible = "dlg,da9210", .data = &da9210_msg },
 	{},
 };
@@ -147,6 +148,7 @@ static int __init rcar_gen2_regulator_qu
 
 	if (!of_machine_is_compatible("renesas,koelsch") &&
 	    !of_machine_is_compatible("renesas,lager") &&
+	    !of_machine_is_compatible("renesas,porter") &&
 	    !of_machine_is_compatible("renesas,stout") &&
 	    !of_machine_is_compatible("renesas,gose"))
 		return -ENODEV;
@@ -210,7 +212,7 @@ static int __init rcar_gen2_regulator_qu
 		goto err_free;
 	}
 
-	pr_info("IRQ2 is asserted, installing da9063/da9210 regulator quirk\n");
+	pr_info("IRQ2 is asserted, installing regulator quirk\n");
 
 	bus_register_notifier(&i2c_bus_type, &regulator_quirk_nb);
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm/vdso/vgettimeofday.c linux-libre-5.1.21-gnu/arch/arm/vdso/vgettimeofday.c
--- linux-libre-5.1-gnu/arch/arm/vdso/vgettimeofday.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm/vdso/vgettimeofday.c	2019-07-28 02:28:39.000000000 -0400
@@ -18,9 +18,9 @@
 #include <linux/compiler.h>
 #include <linux/hrtimer.h>
 #include <linux/time.h>
-#include <asm/arch_timer.h>
 #include <asm/barrier.h>
 #include <asm/bug.h>
+#include <asm/cp15.h>
 #include <asm/page.h>
 #include <asm/unistd.h>
 #include <asm/vdso_datapage.h>
@@ -123,7 +123,8 @@ static notrace u64 get_ns(struct vdso_da
 	u64 cycle_now;
 	u64 nsec;
 
-	cycle_now = arch_counter_get_cntvct();
+	isb();
+	cycle_now = read_sysreg(CNTVCT);
 
 	cycle_delta = (cycle_now - vdata->cs_cycle_last) & vdata->cs_mask;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi linux-libre-5.1.21-gnu/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
--- linux-libre-5.1-gnu/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -28,7 +28,7 @@
 			enable-method = "psci";
 			clocks = <&clockgen 1 0>;
 			next-level-cache = <&l2>;
-			cpu-idle-states = <&CPU_PH20>;
+			cpu-idle-states = <&CPU_PW20>;
 		};
 
 		cpu1: cpu@1 {
@@ -38,7 +38,7 @@
 			enable-method = "psci";
 			clocks = <&clockgen 1 0>;
 			next-level-cache = <&l2>;
-			cpu-idle-states = <&CPU_PH20>;
+			cpu-idle-states = <&CPU_PW20>;
 		};
 
 		l2: l2-cache {
@@ -53,13 +53,13 @@
 		 */
 		entry-method = "arm,psci";
 
-		CPU_PH20: cpu-ph20 {
-			compatible = "arm,idle-state";
-			idle-state-name = "PH20";
-			arm,psci-suspend-param = <0x00010000>;
-			entry-latency-us = <1000>;
-			exit-latency-us = <1000>;
-			min-residency-us = <3000>;
+		CPU_PW20: cpu-pw20 {
+			  compatible = "arm,idle-state";
+			  idle-state-name = "PW20";
+			  arm,psci-suspend-param = <0x0>;
+			  entry-latency-us = <2000>;
+			  exit-latency-us = <2000>;
+			  min-residency-us = <6000>;
 		};
 	};
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/boot/dts/freescale/imx8mq.dtsi linux-libre-5.1.21-gnu/arch/arm64/boot/dts/freescale/imx8mq.dtsi
--- linux-libre-5.1-gnu/arch/arm64/boot/dts/freescale/imx8mq.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/boot/dts/freescale/imx8mq.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -240,7 +240,7 @@
 			};
 
 			iomuxc_gpr: syscon@30340000 {
-				compatible = "fsl,imx8mq-iomuxc-gpr", "syscon";
+				compatible = "fsl,imx8mq-iomuxc-gpr", "fsl,imx6q-iomuxc-gpr", "syscon";
 				reg = <0x30340000 0x10000>;
 			};
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/boot/dts/nvidia/tegra210.dtsi linux-libre-5.1.21-gnu/arch/arm64/boot/dts/nvidia/tegra210.dtsi
--- linux-libre-5.1-gnu/arch/arm64/boot/dts/nvidia/tegra210.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/boot/dts/nvidia/tegra210.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -1250,7 +1250,7 @@
 			compatible = "nvidia,tegra210-agic";
 			#interrupt-cells = <3>;
 			interrupt-controller;
-			reg = <0x702f9000 0x2000>,
+			reg = <0x702f9000 0x1000>,
 			      <0x702fa000 0x2000>;
 			interrupts = <GIC_SPI 102 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 			clocks = <&tegra_car TEGRA210_CLK_APE>;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi linux-libre-5.1.21-gnu/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
--- linux-libre-5.1-gnu/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -322,7 +322,8 @@
 			regulator-max-microvolt = <1320000>;
 			enable-gpios = <&pmic 6 GPIO_ACTIVE_HIGH>;
 			regulator-ramp-delay = <80>;
-			regulator-enable-ramp-delay = <1000>;
+			regulator-enable-ramp-delay = <2000>;
+			regulator-settling-time-us = <160>;
 		};
 	};
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi linux-libre-5.1.21-gnu/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
--- linux-libre-5.1-gnu/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -37,18 +37,18 @@
 	pms405-regulators {
 		compatible = "qcom,rpm-pms405-regulators";
 
-		vdd-s1-supply = <&vph_pwr>;
-		vdd-s2-supply = <&vph_pwr>;
-		vdd-s3-supply = <&vph_pwr>;
-		vdd-s4-supply = <&vph_pwr>;
-		vdd-s5-supply = <&vph_pwr>;
-		vdd-l1-l2-supply = <&vreg_s5_1p35>;
-		vdd-l3-l8-supply = <&vreg_s5_1p35>;
-		vdd-l4-supply = <&vreg_s5_1p35>;
-		vdd-l5-l6-supply = <&vreg_s4_1p8>;
-		vdd-l7-supply = <&vph_pwr>;
-		vdd-l9-supply = <&vreg_s5_1p35>;
-		vdd-l10-l11-l12-l13-supply = <&vph_pwr>;
+		vdd_s1-supply = <&vph_pwr>;
+		vdd_s2-supply = <&vph_pwr>;
+		vdd_s3-supply = <&vph_pwr>;
+		vdd_s4-supply = <&vph_pwr>;
+		vdd_s5-supply = <&vph_pwr>;
+		vdd_l1_l2-supply = <&vreg_s5_1p35>;
+		vdd_l3_l8-supply = <&vreg_s5_1p35>;
+		vdd_l4-supply = <&vreg_s5_1p35>;
+		vdd_l5_l6-supply = <&vreg_s4_1p8>;
+		vdd_l7-supply = <&vph_pwr>;
+		vdd_l9-supply = <&vreg_s5_1p35>;
+		vdd_l10_l11_l12_l13-supply = <&vph_pwr>;
 
 		vreg_s4_1p8: s4 {
 			regulator-min-microvolt = <1728000>;
@@ -56,8 +56,8 @@
 		};
 
 		vreg_s5_1p35: s5 {
-			regulator-min-microvolt = <>;
-			regulator-max-microvolt = <>;
+			regulator-min-microvolt = <1352000>;
+			regulator-max-microvolt = <1352000>;
 		};
 
 		vreg_l1_1p3: l1 {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/boot/dts/rockchip/rk3399.dtsi linux-libre-5.1.21-gnu/arch/arm64/boot/dts/rockchip/rk3399.dtsi
--- linux-libre-5.1-gnu/arch/arm64/boot/dts/rockchip/rk3399.dtsi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/boot/dts/rockchip/rk3399.dtsi	2019-07-28 02:28:39.000000000 -0400
@@ -333,6 +333,7 @@
 		phys = <&emmc_phy>;
 		phy-names = "phy_arasan";
 		power-domains = <&power RK3399_PD_EMMC>;
+		disable-cqe-dcmd;
 		status = "disabled";
 	};
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts linux-libre-5.1.21-gnu/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
--- linux-libre-5.1-gnu/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts	2019-07-28 02:28:39.000000000 -0400
@@ -504,7 +504,7 @@
 	status = "okay";
 
 	bt656-supply = <&vcc1v8_dvp>;
-	audio-supply = <&vcca1v8_codec>;
+	audio-supply = <&vcc_3v0>;
 	sdmmc-supply = <&vcc_sdio>;
 	gpio1830-supply = <&vcc_3v0>;
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/configs/defconfig linux-libre-5.1.21-gnu/arch/arm64/configs/defconfig
--- linux-libre-5.1-gnu/arch/arm64/configs/defconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/configs/defconfig	2019-07-28 02:28:39.000000000 -0400
@@ -222,10 +222,10 @@ CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_SAS_ATA=y
 CONFIG_SCSI_HISI_SAS=y
 CONFIG_SCSI_HISI_SAS_PCI=y
-CONFIG_SCSI_UFSHCD=m
-CONFIG_SCSI_UFSHCD_PLATFORM=m
+CONFIG_SCSI_UFSHCD=y
+CONFIG_SCSI_UFSHCD_PLATFORM=y
 CONFIG_SCSI_UFS_QCOM=m
-CONFIG_SCSI_UFS_HISI=m
+CONFIG_SCSI_UFS_HISI=y
 CONFIG_ATA=y
 CONFIG_SATA_AHCI=y
 CONFIG_SATA_AHCI_PLATFORM=y
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/crypto/aes-neonbs-glue.c linux-libre-5.1.21-gnu/arch/arm64/crypto/aes-neonbs-glue.c
--- linux-libre-5.1-gnu/arch/arm64/crypto/aes-neonbs-glue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/crypto/aes-neonbs-glue.c	2019-07-28 02:28:39.000000000 -0400
@@ -304,6 +304,8 @@ static int __xts_crypt(struct skcipher_r
 	int err;
 
 	err = skcipher_walk_virt(&walk, req, false);
+	if (err)
+		return err;
 
 	kernel_neon_begin();
 	neon_aes_ecb_encrypt(walk.iv, walk.iv, ctx->twkey, ctx->key.rounds, 1);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/crypto/ghash-ce-glue.c linux-libre-5.1.21-gnu/arch/arm64/crypto/ghash-ce-glue.c
--- linux-libre-5.1-gnu/arch/arm64/crypto/ghash-ce-glue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/crypto/ghash-ce-glue.c	2019-07-28 02:28:39.000000000 -0400
@@ -473,9 +473,11 @@ static int gcm_encrypt(struct aead_reque
 		put_unaligned_be32(2, iv + GCM_IV_SIZE);
 
 		while (walk.nbytes >= (2 * AES_BLOCK_SIZE)) {
-			int blocks = walk.nbytes / AES_BLOCK_SIZE;
+			const int blocks =
+				walk.nbytes / (2 * AES_BLOCK_SIZE) * 2;
 			u8 *dst = walk.dst.virt.addr;
 			u8 *src = walk.src.virt.addr;
+			int remaining = blocks;
 
 			do {
 				__aes_arm64_encrypt(ctx->aes_key.key_enc,
@@ -485,9 +487,9 @@ static int gcm_encrypt(struct aead_reque
 
 				dst += AES_BLOCK_SIZE;
 				src += AES_BLOCK_SIZE;
-			} while (--blocks > 0);
+			} while (--remaining > 0);
 
-			ghash_do_update(walk.nbytes / AES_BLOCK_SIZE, dg,
+			ghash_do_update(blocks, dg,
 					walk.dst.virt.addr, &ctx->ghash_key,
 					NULL, pmull_ghash_update_p64);
 
@@ -609,7 +611,7 @@ static int gcm_decrypt(struct aead_reque
 		put_unaligned_be32(2, iv + GCM_IV_SIZE);
 
 		while (walk.nbytes >= (2 * AES_BLOCK_SIZE)) {
-			int blocks = walk.nbytes / AES_BLOCK_SIZE;
+			int blocks = walk.nbytes / (2 * AES_BLOCK_SIZE) * 2;
 			u8 *dst = walk.dst.virt.addr;
 			u8 *src = walk.src.virt.addr;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/crypto/sha1-ce-glue.c linux-libre-5.1.21-gnu/arch/arm64/crypto/sha1-ce-glue.c
--- linux-libre-5.1-gnu/arch/arm64/crypto/sha1-ce-glue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/crypto/sha1-ce-glue.c	2019-07-28 02:28:39.000000000 -0400
@@ -54,7 +54,7 @@ static int sha1_ce_finup(struct shash_de
 			 unsigned int len, u8 *out)
 {
 	struct sha1_ce_state *sctx = shash_desc_ctx(desc);
-	bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE);
+	bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE) && len;
 
 	if (!may_use_simd())
 		return crypto_sha1_finup(desc, data, len, out);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/crypto/sha2-ce-glue.c linux-libre-5.1.21-gnu/arch/arm64/crypto/sha2-ce-glue.c
--- linux-libre-5.1-gnu/arch/arm64/crypto/sha2-ce-glue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/crypto/sha2-ce-glue.c	2019-07-28 02:28:39.000000000 -0400
@@ -59,7 +59,7 @@ static int sha256_ce_finup(struct shash_
 			   unsigned int len, u8 *out)
 {
 	struct sha256_ce_state *sctx = shash_desc_ctx(desc);
-	bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE);
+	bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE) && len;
 
 	if (!may_use_simd()) {
 		if (len)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/arch_timer.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/arch_timer.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/arch_timer.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/arch_timer.h	2019-07-28 02:28:39.000000000 -0400
@@ -148,18 +148,47 @@ static inline void arch_timer_set_cntkct
 	isb();
 }
 
+/*
+ * Ensure that reads of the counter are treated the same as memory reads
+ * for the purposes of ordering by subsequent memory barriers.
+ *
+ * This insanity brought to you by speculative system register reads,
+ * out-of-order memory accesses, sequence locks and Thomas Gleixner.
+ *
+ * http://lists.infradead.org/pipermail/linux-arm-kernel/2019-February/631195.html
+ */
+#define arch_counter_enforce_ordering(val) do {				\
+	u64 tmp, _val = (val);						\
+									\
+	asm volatile(							\
+	"	eor	%0, %1, %1\n"					\
+	"	add	%0, sp, %0\n"					\
+	"	ldr	xzr, [%0]"					\
+	: "=r" (tmp) : "r" (_val));					\
+} while (0)
+
 static inline u64 arch_counter_get_cntpct(void)
 {
+	u64 cnt;
+
 	isb();
-	return arch_timer_reg_read_stable(cntpct_el0);
+	cnt = arch_timer_reg_read_stable(cntpct_el0);
+	arch_counter_enforce_ordering(cnt);
+	return cnt;
 }
 
 static inline u64 arch_counter_get_cntvct(void)
 {
+	u64 cnt;
+
 	isb();
-	return arch_timer_reg_read_stable(cntvct_el0);
+	cnt = arch_timer_reg_read_stable(cntvct_el0);
+	arch_counter_enforce_ordering(cnt);
+	return cnt;
 }
 
+#undef arch_counter_enforce_ordering
+
 static inline int arch_timer_arch_init(void)
 {
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/cpucaps.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/cpucaps.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/cpucaps.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/cpucaps.h	2019-07-28 02:28:39.000000000 -0400
@@ -61,7 +61,8 @@
 #define ARM64_HAS_GENERIC_AUTH_ARCH		40
 #define ARM64_HAS_GENERIC_AUTH_IMP_DEF		41
 #define ARM64_HAS_IRQ_PRIO_MASKING		42
+#define ARM64_WORKAROUND_1463225		43
 
-#define ARM64_NCAPS				43
+#define ARM64_NCAPS				44
 
 #endif /* __ASM_CPUCAPS_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/futex.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/futex.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/futex.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/futex.h	2019-07-28 02:28:39.000000000 -0400
@@ -23,26 +23,34 @@
 
 #include <asm/errno.h>
 
+#define FUTEX_MAX_LOOPS	128 /* What's the largest number you can think of? */
+
 #define __futex_atomic_op(insn, ret, oldval, uaddr, tmp, oparg)		\
 do {									\
+	unsigned int loops = FUTEX_MAX_LOOPS;				\
+									\
 	uaccess_enable();						\
 	asm volatile(							\
 "	prfm	pstl1strm, %2\n"					\
 "1:	ldxr	%w1, %2\n"						\
 	insn "\n"							\
 "2:	stlxr	%w0, %w3, %2\n"						\
-"	cbnz	%w0, 1b\n"						\
-"	dmb	ish\n"							\
+"	cbz	%w0, 3f\n"						\
+"	sub	%w4, %w4, %w0\n"					\
+"	cbnz	%w4, 1b\n"						\
+"	mov	%w0, %w7\n"						\
 "3:\n"									\
+"	dmb	ish\n"							\
 "	.pushsection .fixup,\"ax\"\n"					\
 "	.align	2\n"							\
-"4:	mov	%w0, %w5\n"						\
+"4:	mov	%w0, %w6\n"						\
 "	b	3b\n"							\
 "	.popsection\n"							\
 	_ASM_EXTABLE(1b, 4b)						\
 	_ASM_EXTABLE(2b, 4b)						\
-	: "=&r" (ret), "=&r" (oldval), "+Q" (*uaddr), "=&r" (tmp)	\
-	: "r" (oparg), "Ir" (-EFAULT)					\
+	: "=&r" (ret), "=&r" (oldval), "+Q" (*uaddr), "=&r" (tmp),	\
+	  "+r" (loops)							\
+	: "r" (oparg), "Ir" (-EFAULT), "Ir" (-EAGAIN)			\
 	: "memory");							\
 	uaccess_disable();						\
 } while (0)
@@ -50,30 +58,30 @@ do {									\
 static inline int
 arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *_uaddr)
 {
-	int oldval = 0, ret, tmp;
+	int oldval, ret, tmp;
 	u32 __user *uaddr = __uaccess_mask_ptr(_uaddr);
 
 	pagefault_disable();
 
 	switch (op) {
 	case FUTEX_OP_SET:
-		__futex_atomic_op("mov	%w3, %w4",
+		__futex_atomic_op("mov	%w3, %w5",
 				  ret, oldval, uaddr, tmp, oparg);
 		break;
 	case FUTEX_OP_ADD:
-		__futex_atomic_op("add	%w3, %w1, %w4",
+		__futex_atomic_op("add	%w3, %w1, %w5",
 				  ret, oldval, uaddr, tmp, oparg);
 		break;
 	case FUTEX_OP_OR:
-		__futex_atomic_op("orr	%w3, %w1, %w4",
+		__futex_atomic_op("orr	%w3, %w1, %w5",
 				  ret, oldval, uaddr, tmp, oparg);
 		break;
 	case FUTEX_OP_ANDN:
-		__futex_atomic_op("and	%w3, %w1, %w4",
+		__futex_atomic_op("and	%w3, %w1, %w5",
 				  ret, oldval, uaddr, tmp, ~oparg);
 		break;
 	case FUTEX_OP_XOR:
-		__futex_atomic_op("eor	%w3, %w1, %w4",
+		__futex_atomic_op("eor	%w3, %w1, %w5",
 				  ret, oldval, uaddr, tmp, oparg);
 		break;
 	default:
@@ -93,6 +101,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 			      u32 oldval, u32 newval)
 {
 	int ret = 0;
+	unsigned int loops = FUTEX_MAX_LOOPS;
 	u32 val, tmp;
 	u32 __user *uaddr;
 
@@ -104,24 +113,30 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 	asm volatile("// futex_atomic_cmpxchg_inatomic\n"
 "	prfm	pstl1strm, %2\n"
 "1:	ldxr	%w1, %2\n"
-"	sub	%w3, %w1, %w4\n"
-"	cbnz	%w3, 3f\n"
-"2:	stlxr	%w3, %w5, %2\n"
-"	cbnz	%w3, 1b\n"
-"	dmb	ish\n"
+"	sub	%w3, %w1, %w5\n"
+"	cbnz	%w3, 4f\n"
+"2:	stlxr	%w3, %w6, %2\n"
+"	cbz	%w3, 3f\n"
+"	sub	%w4, %w4, %w3\n"
+"	cbnz	%w4, 1b\n"
+"	mov	%w0, %w8\n"
 "3:\n"
+"	dmb	ish\n"
+"4:\n"
 "	.pushsection .fixup,\"ax\"\n"
-"4:	mov	%w0, %w6\n"
-"	b	3b\n"
+"5:	mov	%w0, %w7\n"
+"	b	4b\n"
 "	.popsection\n"
-	_ASM_EXTABLE(1b, 4b)
-	_ASM_EXTABLE(2b, 4b)
-	: "+r" (ret), "=&r" (val), "+Q" (*uaddr), "=&r" (tmp)
-	: "r" (oldval), "r" (newval), "Ir" (-EFAULT)
+	_ASM_EXTABLE(1b, 5b)
+	_ASM_EXTABLE(2b, 5b)
+	: "+r" (ret), "=&r" (val), "+Q" (*uaddr), "=&r" (tmp), "+r" (loops)
+	: "r" (oldval), "r" (newval), "Ir" (-EFAULT), "Ir" (-EAGAIN)
 	: "memory");
 	uaccess_disable();
 
-	*uval = val;
+	if (!ret)
+		*uval = val;
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/insn.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/insn.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/insn.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/insn.h	2019-07-28 02:28:39.000000000 -0400
@@ -277,6 +277,7 @@ __AARCH64_INSN_FUNCS(adrp,	0x9F000000, 0
 __AARCH64_INSN_FUNCS(prfm,	0x3FC00000, 0x39800000)
 __AARCH64_INSN_FUNCS(prfm_lit,	0xFF000000, 0xD8000000)
 __AARCH64_INSN_FUNCS(str_reg,	0x3FE0EC00, 0x38206800)
+__AARCH64_INSN_FUNCS(ldadd,	0x3F20FC00, 0x38200000)
 __AARCH64_INSN_FUNCS(ldr_reg,	0x3FE0EC00, 0x38606800)
 __AARCH64_INSN_FUNCS(ldr_lit,	0xBF000000, 0x18000000)
 __AARCH64_INSN_FUNCS(ldrsw_lit,	0xFF000000, 0x98000000)
@@ -394,6 +395,13 @@ u32 aarch64_insn_gen_load_store_ex(enum
 				   enum aarch64_insn_register state,
 				   enum aarch64_insn_size_type size,
 				   enum aarch64_insn_ldst_type type);
+u32 aarch64_insn_gen_ldadd(enum aarch64_insn_register result,
+			   enum aarch64_insn_register address,
+			   enum aarch64_insn_register value,
+			   enum aarch64_insn_size_type size);
+u32 aarch64_insn_gen_stadd(enum aarch64_insn_register address,
+			   enum aarch64_insn_register value,
+			   enum aarch64_insn_size_type size);
 u32 aarch64_insn_gen_add_sub_imm(enum aarch64_insn_register dst,
 				 enum aarch64_insn_register src,
 				 int imm, enum aarch64_insn_variant variant,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/irqflags.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/irqflags.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/irqflags.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/irqflags.h	2019-07-28 02:28:39.000000000 -0400
@@ -92,7 +92,7 @@ static inline unsigned long arch_local_s
 			ARM64_HAS_IRQ_PRIO_MASKING)
 		: "=&r" (flags), "+r" (daif_bits)
 		: "r" ((unsigned long) GIC_PRIO_IRQOFF)
-		: "memory");
+		: "cc", "memory");
 
 	return flags;
 }
@@ -136,7 +136,7 @@ static inline int arch_irqs_disabled_fla
 			ARM64_HAS_IRQ_PRIO_MASKING)
 		: "=&r" (res)
 		: "r" ((int) flags)
-		: "memory");
+		: "cc", "memory");
 
 	return res;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/pgtable.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/pgtable.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/pgtable.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/pgtable.h	2019-07-28 02:28:39.000000000 -0400
@@ -478,6 +478,8 @@ static inline phys_addr_t pmd_page_paddr
 	return __pmd_to_phys(pmd);
 }
 
+static inline void pte_unmap(pte_t *pte) { }
+
 /* Find an entry in the third-level page table. */
 #define pte_index(addr)		(((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
 
@@ -486,7 +488,6 @@ static inline phys_addr_t pmd_page_paddr
 
 #define pte_offset_map(dir,addr)	pte_offset_kernel((dir), (addr))
 #define pte_offset_map_nested(dir,addr)	pte_offset_kernel((dir), (addr))
-#define pte_unmap(pte)			do { } while (0)
 #define pte_unmap_nested(pte)		do { } while (0)
 
 #define pte_set_fixmap(addr)		((pte_t *)set_fixmap_offset(FIX_PTE, addr))
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/processor.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/processor.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/processor.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/processor.h	2019-07-28 02:28:39.000000000 -0400
@@ -57,7 +57,15 @@
 #define TASK_SIZE_64		(UL(1) << vabits_user)
 
 #ifdef CONFIG_COMPAT
+#ifdef CONFIG_ARM64_64K_PAGES
+/*
+ * With CONFIG_ARM64_64K_PAGES enabled, the last page is occupied
+ * by the compat vectors page.
+ */
 #define TASK_SIZE_32		UL(0x100000000)
+#else
+#define TASK_SIZE_32		(UL(0x100000000) - PAGE_SIZE)
+#endif /* CONFIG_ARM64_64K_PAGES */
 #define TASK_SIZE		(test_thread_flag(TIF_32BIT) ? \
 				TASK_SIZE_32 : TASK_SIZE_64)
 #define TASK_SIZE_OF(tsk)	(test_tsk_thread_flag(tsk, TIF_32BIT) ? \
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/syscall.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/syscall.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/syscall.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/syscall.h	2019-07-28 02:28:39.000000000 -0400
@@ -20,7 +20,7 @@
 #include <linux/compat.h>
 #include <linux/err.h>
 
-typedef long (*syscall_fn_t)(struct pt_regs *regs);
+typedef long (*syscall_fn_t)(const struct pt_regs *regs);
 
 extern const syscall_fn_t sys_call_table[];
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/syscall_wrapper.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/syscall_wrapper.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/syscall_wrapper.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/syscall_wrapper.h	2019-07-28 02:28:39.000000000 -0400
@@ -30,10 +30,10 @@
 	}										\
 	static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 
-#define COMPAT_SYSCALL_DEFINE0(sname)					\
-	asmlinkage long __arm64_compat_sys_##sname(void);		\
-	ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO);	\
-	asmlinkage long __arm64_compat_sys_##sname(void)
+#define COMPAT_SYSCALL_DEFINE0(sname)							\
+	asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused);	\
+	ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO);			\
+	asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused)
 
 #define COND_SYSCALL_COMPAT(name) \
 	cond_syscall(__arm64_compat_sys_##name);
@@ -62,11 +62,11 @@
 	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 
 #ifndef SYSCALL_DEFINE0
-#define SYSCALL_DEFINE0(sname)					\
-	SYSCALL_METADATA(_##sname, 0);				\
-	asmlinkage long __arm64_sys_##sname(void);		\
-	ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO);	\
-	asmlinkage long __arm64_sys_##sname(void)
+#define SYSCALL_DEFINE0(sname)							\
+	SYSCALL_METADATA(_##sname, 0);						\
+	asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused);	\
+	ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO);			\
+	asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused)
 #endif
 
 #ifndef COND_SYSCALL
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/tlbflush.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/tlbflush.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/tlbflush.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/tlbflush.h	2019-07-28 02:28:39.000000000 -0400
@@ -195,6 +195,9 @@ static inline void __flush_tlb_range(str
 	unsigned long asid = ASID(vma->vm_mm);
 	unsigned long addr;
 
+	start = round_down(start, stride);
+	end = round_up(end, stride);
+
 	if ((end - start) >= (MAX_TLBI_OPS * stride)) {
 		flush_tlb_mm(vma->vm_mm);
 		return;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/asm/vdso_datapage.h linux-libre-5.1.21-gnu/arch/arm64/include/asm/vdso_datapage.h
--- linux-libre-5.1-gnu/arch/arm64/include/asm/vdso_datapage.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/asm/vdso_datapage.h	2019-07-28 02:28:39.000000000 -0400
@@ -38,6 +38,7 @@ struct vdso_data {
 	__u32 tz_minuteswest;	/* Whacky timezone stuff */
 	__u32 tz_dsttime;
 	__u32 use_syscall;
+	__u32 hrtimer_res;
 };
 
 #endif /* !__ASSEMBLY__ */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/include/uapi/asm/ptrace.h linux-libre-5.1.21-gnu/arch/arm64/include/uapi/asm/ptrace.h
--- linux-libre-5.1-gnu/arch/arm64/include/uapi/asm/ptrace.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/include/uapi/asm/ptrace.h	2019-07-28 02:28:39.000000000 -0400
@@ -65,8 +65,6 @@
 
 #ifndef __ASSEMBLY__
 
-#include <linux/prctl.h>
-
 /*
  * User structures for general purpose, floating point and debug registers.
  */
@@ -113,10 +111,10 @@ struct user_sve_header {
 
 /*
  * Common SVE_PT_* flags:
- * These must be kept in sync with prctl interface in <linux/ptrace.h>
+ * These must be kept in sync with prctl interface in <linux/prctl.h>
  */
-#define SVE_PT_VL_INHERIT		(PR_SVE_VL_INHERIT >> 16)
-#define SVE_PT_VL_ONEXEC		(PR_SVE_SET_VL_ONEXEC >> 16)
+#define SVE_PT_VL_INHERIT		((1 << 17) /* PR_SVE_VL_INHERIT */ >> 16)
+#define SVE_PT_VL_ONEXEC		((1 << 18) /* PR_SVE_SET_VL_ONEXEC */ >> 16)
 
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/Kconfig linux-libre-5.1.21-gnu/arch/arm64/Kconfig
--- linux-libre-5.1-gnu/arch/arm64/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -258,7 +258,8 @@ config GENERIC_CALIBRATE_DELAY
 	def_bool y
 
 config ZONE_DMA32
-	def_bool y
+	bool "Support DMA32 zone" if EXPERT
+	default y
 
 config HAVE_GENERIC_GUP
 	def_bool y
@@ -517,6 +518,24 @@ config ARM64_ERRATUM_1286807
 
 	  If unsure, say Y.
 
+config ARM64_ERRATUM_1463225
+	bool "Cortex-A76: Software Step might prevent interrupt recognition"
+	default y
+	help
+	  This option adds a workaround for Arm Cortex-A76 erratum 1463225.
+
+	  On the affected Cortex-A76 cores (r0p0 to r3p1), software stepping
+	  of a system call instruction (SVC) can prevent recognition of
+	  subsequent interrupts when software stepping is disabled in the
+	  exception handler of the system call and either kernel debugging
+	  is enabled or VHE is in use.
+
+	  Work around the erratum by triggering a dummy step exception
+	  when handling a system call from a task that is being stepped
+	  in a VHE configuration of the kernel.
+
+	  If unsure, say Y.
+
 config CAVIUM_ERRATUM_22375
 	bool "Cavium erratum 22375, 24313"
 	default y
@@ -1347,6 +1366,7 @@ config ARM64_MODULE_PLTS
 
 config ARM64_PSEUDO_NMI
 	bool "Support for NMI-like interrupts"
+	depends on BROKEN # 1556553607-46531-1-git-send-email-julien.thierry@arm.com
 	select CONFIG_ARM_GIC_V3
 	help
 	  Adds support for mimicking Non-Maskable Interrupts through the use of
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/acpi.c linux-libre-5.1.21-gnu/arch/arm64/kernel/acpi.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/acpi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/acpi.c	2019-07-28 02:28:39.000000000 -0400
@@ -155,10 +155,14 @@ static int __init acpi_fadt_sanity_check
 	 */
 	if (table->revision < 5 ||
 	   (table->revision == 5 && fadt->minor_revision < 1)) {
-		pr_err("Unsupported FADT revision %d.%d, should be 5.1+\n",
+		pr_err(FW_BUG "Unsupported FADT revision %d.%d, should be 5.1+\n",
 		       table->revision, fadt->minor_revision);
-		ret = -EINVAL;
-		goto out;
+
+		if (!fadt->arm_boot_flags) {
+			ret = -EINVAL;
+			goto out;
+		}
+		pr_err("FADT has ARM boot flags set, assuming 5.1\n");
 	}
 
 	if (!(fadt->flags & ACPI_FADT_HW_REDUCED)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/asm-offsets.c linux-libre-5.1.21-gnu/arch/arm64/kernel/asm-offsets.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/asm-offsets.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/asm-offsets.c	2019-07-28 02:28:39.000000000 -0400
@@ -94,7 +94,7 @@ int main(void)
   DEFINE(CLOCK_REALTIME,	CLOCK_REALTIME);
   DEFINE(CLOCK_MONOTONIC,	CLOCK_MONOTONIC);
   DEFINE(CLOCK_MONOTONIC_RAW,	CLOCK_MONOTONIC_RAW);
-  DEFINE(CLOCK_REALTIME_RES,	MONOTONIC_RES_NSEC);
+  DEFINE(CLOCK_REALTIME_RES,	offsetof(struct vdso_data, hrtimer_res));
   DEFINE(CLOCK_REALTIME_COARSE,	CLOCK_REALTIME_COARSE);
   DEFINE(CLOCK_MONOTONIC_COARSE,CLOCK_MONOTONIC_COARSE);
   DEFINE(CLOCK_COARSE_RES,	LOW_RES_NSEC);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/cpu_errata.c linux-libre-5.1.21-gnu/arch/arm64/kernel/cpu_errata.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/cpu_errata.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/cpu_errata.c	2019-07-28 02:28:39.000000000 -0400
@@ -464,6 +464,22 @@ out_printmsg:
 }
 #endif	/* CONFIG_ARM64_SSBD */
 
+#ifdef CONFIG_ARM64_ERRATUM_1463225
+DEFINE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
+
+static bool
+has_cortex_a76_erratum_1463225(const struct arm64_cpu_capabilities *entry,
+			       int scope)
+{
+	u32 midr = read_cpuid_id();
+	/* Cortex-A76 r0p0 - r3p1 */
+	struct midr_range range = MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 1);
+
+	WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
+	return is_midr_in_range(midr, &range) && is_kernel_in_hyp_mode();
+}
+#endif
+
 static void __maybe_unused
 cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused)
 {
@@ -739,6 +755,14 @@ const struct arm64_cpu_capabilities arm6
 		ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
 	},
 #endif
+#ifdef CONFIG_ARM64_ERRATUM_1463225
+	{
+		.desc = "ARM erratum 1463225",
+		.capability = ARM64_WORKAROUND_1463225,
+		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
+		.matches = has_cortex_a76_erratum_1463225,
+	},
+#endif
 	{
 	}
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/cpu_ops.c linux-libre-5.1.21-gnu/arch/arm64/kernel/cpu_ops.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/cpu_ops.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/cpu_ops.c	2019-07-28 02:28:39.000000000 -0400
@@ -85,6 +85,7 @@ static const char *__init cpu_read_enabl
 				pr_err("%pOF: missing enable-method property\n",
 					dn);
 		}
+		of_node_put(dn);
 	} else {
 		enable_method = acpi_get_enable_method(cpu);
 		if (!enable_method) {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/debug-monitors.c linux-libre-5.1.21-gnu/arch/arm64/kernel/debug-monitors.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/debug-monitors.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/debug-monitors.c	2019-07-28 02:28:39.000000000 -0400
@@ -135,6 +135,7 @@ NOKPROBE_SYMBOL(disable_debug_monitors);
  */
 static int clear_os_lock(unsigned int cpu)
 {
+	write_sysreg(0, osdlr_el1);
 	write_sysreg(0, oslar_el1);
 	isb();
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/entry.S linux-libre-5.1.21-gnu/arch/arm64/kernel/entry.S
--- linux-libre-5.1-gnu/arch/arm64/kernel/entry.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/entry.S	2019-07-28 02:28:39.000000000 -0400
@@ -420,6 +420,20 @@ tsk	.req	x28		// current thread_info
 	irq_stack_exit
 	.endm
 
+#ifdef CONFIG_ARM64_PSEUDO_NMI
+	/*
+	 * Set res to 0 if irqs were unmasked in interrupted context.
+	 * Otherwise set res to non-0 value.
+	 */
+	.macro	test_irqs_unmasked res:req, pmr:req
+alternative_if ARM64_HAS_IRQ_PRIO_MASKING
+	sub	\res, \pmr, #GIC_PRIO_IRQON
+alternative_else
+	mov	\res, xzr
+alternative_endif
+	.endm
+#endif
+
 	.text
 
 /*
@@ -616,19 +630,19 @@ ENDPROC(el1_sync)
 el1_irq:
 	kernel_entry 1
 	enable_da_f
-#ifdef CONFIG_TRACE_IRQFLAGS
+
 #ifdef CONFIG_ARM64_PSEUDO_NMI
 alternative_if ARM64_HAS_IRQ_PRIO_MASKING
 	ldr	x20, [sp, #S_PMR_SAVE]
-alternative_else
-	mov	x20, #GIC_PRIO_IRQON
-alternative_endif
-	cmp	x20, #GIC_PRIO_IRQOFF
-	/* Irqs were disabled, don't trace */
-	b.ls	1f
+alternative_else_nop_endif
+	test_irqs_unmasked	res=x0, pmr=x20
+	cbz	x0, 1f
+	bl	asm_nmi_enter
+1:
 #endif
+
+#ifdef CONFIG_TRACE_IRQFLAGS
 	bl	trace_hardirqs_off
-1:
 #endif
 
 	irq_handler
@@ -647,14 +661,22 @@ alternative_else_nop_endif
 	bl	preempt_schedule_irq		// irq en/disable is done inside
 1:
 #endif
-#ifdef CONFIG_TRACE_IRQFLAGS
+
 #ifdef CONFIG_ARM64_PSEUDO_NMI
 	/*
 	 * if IRQs were disabled when we received the interrupt, we have an NMI
 	 * and we are not re-enabling interrupt upon eret. Skip tracing.
 	 */
-	cmp	x20, #GIC_PRIO_IRQOFF
-	b.ls	1f
+	test_irqs_unmasked	res=x0, pmr=x20
+	cbz	x0, 1f
+	bl	asm_nmi_exit
+1:
+#endif
+
+#ifdef CONFIG_TRACE_IRQFLAGS
+#ifdef CONFIG_ARM64_PSEUDO_NMI
+	test_irqs_unmasked	res=x0, pmr=x20
+	cbnz	x0, 1f
 #endif
 	bl	trace_hardirqs_on
 1:
@@ -855,7 +877,7 @@ el0_dbg:
 	mov	x1, x25
 	mov	x2, sp
 	bl	do_debug_exception
-	enable_daif
+	enable_da_f
 	ct_user_exit
 	b	ret_to_user
 el0_inv:
@@ -907,7 +929,7 @@ el0_error_naked:
 	enable_dbg
 	mov	x0, sp
 	bl	do_serror
-	enable_daif
+	enable_da_f
 	ct_user_exit
 	b	ret_to_user
 ENDPROC(el0_error)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/image.h linux-libre-5.1.21-gnu/arch/arm64/kernel/image.h
--- linux-libre-5.1-gnu/arch/arm64/kernel/image.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/image.h	2019-07-28 02:28:39.000000000 -0400
@@ -78,7 +78,11 @@
 
 #ifdef CONFIG_EFI
 
-__efistub_stext_offset = stext - _text;
+/*
+ * Use ABSOLUTE() to avoid ld.lld treating this as a relative symbol:
+ * https://github.com/ClangBuiltLinux/linux/issues/561
+ */
+__efistub_stext_offset = ABSOLUTE(stext - _text);
 
 /*
  * The EFI stub has its own symbol namespace prefixed by __efistub_, to
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/insn.c linux-libre-5.1.21-gnu/arch/arm64/kernel/insn.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/insn.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/insn.c	2019-07-28 02:28:39.000000000 -0400
@@ -734,6 +734,46 @@ u32 aarch64_insn_gen_load_store_ex(enum
 					    state);
 }
 
+u32 aarch64_insn_gen_ldadd(enum aarch64_insn_register result,
+			   enum aarch64_insn_register address,
+			   enum aarch64_insn_register value,
+			   enum aarch64_insn_size_type size)
+{
+	u32 insn = aarch64_insn_get_ldadd_value();
+
+	switch (size) {
+	case AARCH64_INSN_SIZE_32:
+	case AARCH64_INSN_SIZE_64:
+		break;
+	default:
+		pr_err("%s: unimplemented size encoding %d\n", __func__, size);
+		return AARCH64_BREAK_FAULT;
+	}
+
+	insn = aarch64_insn_encode_ldst_size(size, insn);
+
+	insn = aarch64_insn_encode_register(AARCH64_INSN_REGTYPE_RT, insn,
+					    result);
+
+	insn = aarch64_insn_encode_register(AARCH64_INSN_REGTYPE_RN, insn,
+					    address);
+
+	return aarch64_insn_encode_register(AARCH64_INSN_REGTYPE_RS, insn,
+					    value);
+}
+
+u32 aarch64_insn_gen_stadd(enum aarch64_insn_register address,
+			   enum aarch64_insn_register value,
+			   enum aarch64_insn_size_type size)
+{
+	/*
+	 * STADD is simply encoded as an alias for LDADD with XZR as
+	 * the destination register.
+	 */
+	return aarch64_insn_gen_ldadd(AARCH64_INSN_REG_ZR, address,
+				      value, size);
+}
+
 static u32 aarch64_insn_encode_prfm_imm(enum aarch64_insn_prfm_type type,
 					enum aarch64_insn_prfm_target target,
 					enum aarch64_insn_prfm_policy policy,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/irq.c linux-libre-5.1.21-gnu/arch/arm64/kernel/irq.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/irq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/irq.c	2019-07-28 02:28:39.000000000 -0400
@@ -27,8 +27,10 @@
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/irqchip.h>
+#include <linux/kprobes.h>
 #include <linux/seq_file.h>
 #include <linux/vmalloc.h>
+#include <asm/daifflags.h>
 #include <asm/vmap_stack.h>
 
 unsigned long irq_err_count;
@@ -76,3 +78,18 @@ void __init init_IRQ(void)
 	if (!handle_arch_irq)
 		panic("No interrupt controller found.");
 }
+
+/*
+ * Stubs to make nmi_enter/exit() code callable from ASM
+ */
+asmlinkage void notrace asm_nmi_enter(void)
+{
+	nmi_enter();
+}
+NOKPROBE_SYMBOL(asm_nmi_enter);
+
+asmlinkage void notrace asm_nmi_exit(void)
+{
+	nmi_exit();
+}
+NOKPROBE_SYMBOL(asm_nmi_exit);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/kaslr.c linux-libre-5.1.21-gnu/arch/arm64/kernel/kaslr.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/kaslr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/kaslr.c	2019-07-28 02:28:39.000000000 -0400
@@ -145,15 +145,15 @@ u64 __init kaslr_early_init(u64 dt_phys)
 
 	if (IS_ENABLED(CONFIG_RANDOMIZE_MODULE_REGION_FULL)) {
 		/*
-		 * Randomize the module region over a 4 GB window covering the
+		 * Randomize the module region over a 2 GB window covering the
 		 * kernel. This reduces the risk of modules leaking information
 		 * about the address of the kernel itself, but results in
 		 * branches between modules and the core kernel that are
 		 * resolved via PLTs. (Branches between modules will be
 		 * resolved normally.)
 		 */
-		module_range = SZ_4G - (u64)(_end - _stext);
-		module_alloc_base = max((u64)_end + offset - SZ_4G,
+		module_range = SZ_2G - (u64)(_end - _stext);
+		module_alloc_base = max((u64)_end + offset - SZ_2G,
 					(u64)MODULES_VADDR);
 	} else {
 		/*
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/module.c linux-libre-5.1.21-gnu/arch/arm64/kernel/module.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/module.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/module.c	2019-07-28 02:28:39.000000000 -0400
@@ -32,6 +32,7 @@
 
 void *module_alloc(unsigned long size)
 {
+	u64 module_alloc_end = module_alloc_base + MODULES_VSIZE;
 	gfp_t gfp_mask = GFP_KERNEL;
 	void *p;
 
@@ -39,9 +40,12 @@ void *module_alloc(unsigned long size)
 	if (IS_ENABLED(CONFIG_ARM64_MODULE_PLTS))
 		gfp_mask |= __GFP_NOWARN;
 
+	if (IS_ENABLED(CONFIG_KASAN))
+		/* don't exceed the static module region - see below */
+		module_alloc_end = MODULES_END;
+
 	p = __vmalloc_node_range(size, MODULE_ALIGN, module_alloc_base,
-				module_alloc_base + MODULES_VSIZE,
-				gfp_mask, PAGE_KERNEL_EXEC, 0,
+				module_alloc_end, gfp_mask, PAGE_KERNEL_EXEC, 0,
 				NUMA_NO_NODE, __builtin_return_address(0));
 
 	if (!p && IS_ENABLED(CONFIG_ARM64_MODULE_PLTS) &&
@@ -56,7 +60,7 @@ void *module_alloc(unsigned long size)
 		 * can simply omit this fallback in that case.
 		 */
 		p = __vmalloc_node_range(size, MODULE_ALIGN, module_alloc_base,
-				module_alloc_base + SZ_4G, GFP_KERNEL,
+				module_alloc_base + SZ_2G, GFP_KERNEL,
 				PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/ssbd.c linux-libre-5.1.21-gnu/arch/arm64/kernel/ssbd.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/ssbd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/ssbd.c	2019-07-28 02:28:39.000000000 -0400
@@ -5,6 +5,7 @@
 
 #include <linux/compat.h>
 #include <linux/errno.h>
+#include <linux/prctl.h>
 #include <linux/sched.h>
 #include <linux/sched/task_stack.h>
 #include <linux/thread_info.h>
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/sys32.c linux-libre-5.1.21-gnu/arch/arm64/kernel/sys32.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/sys32.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/sys32.c	2019-07-28 02:28:39.000000000 -0400
@@ -133,17 +133,14 @@ COMPAT_SYSCALL_DEFINE6(aarch32_fallocate
 	return ksys_fallocate(fd, mode, arg_u64(offset), arg_u64(len));
 }
 
-asmlinkage long sys_ni_syscall(const struct pt_regs *);
-#define __arm64_sys_ni_syscall	sys_ni_syscall
-
 #undef __SYSCALL
 #define __SYSCALL(nr, sym)	asmlinkage long __arm64_##sym(const struct pt_regs *);
 #include <asm/unistd32.h>
 
 #undef __SYSCALL
-#define __SYSCALL(nr, sym)	[nr] = (syscall_fn_t)__arm64_##sym,
+#define __SYSCALL(nr, sym)	[nr] = __arm64_##sym,
 
 const syscall_fn_t compat_sys_call_table[__NR_compat_syscalls] = {
-	[0 ... __NR_compat_syscalls - 1] = (syscall_fn_t)sys_ni_syscall,
+	[0 ... __NR_compat_syscalls - 1] = __arm64_sys_ni_syscall,
 #include <asm/unistd32.h>
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/sys.c linux-libre-5.1.21-gnu/arch/arm64/kernel/sys.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/sys.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/sys.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,7 +31,7 @@
 
 SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
 		unsigned long, prot, unsigned long, flags,
-		unsigned long, fd, off_t, off)
+		unsigned long, fd, unsigned long, off)
 {
 	if (offset_in_page(off) != 0)
 		return -EINVAL;
@@ -47,22 +47,26 @@ SYSCALL_DEFINE1(arm64_personality, unsig
 	return ksys_personality(personality);
 }
 
+asmlinkage long sys_ni_syscall(void);
+
+asmlinkage long __arm64_sys_ni_syscall(const struct pt_regs *__unused)
+{
+	return sys_ni_syscall();
+}
+
 /*
  * Wrappers to pass the pt_regs argument.
  */
-#define sys_personality		sys_arm64_personality
-
-asmlinkage long sys_ni_syscall(const struct pt_regs *);
-#define __arm64_sys_ni_syscall	sys_ni_syscall
+#define __arm64_sys_personality		__arm64_sys_arm64_personality
 
 #undef __SYSCALL
 #define __SYSCALL(nr, sym)	asmlinkage long __arm64_##sym(const struct pt_regs *);
 #include <asm/unistd.h>
 
 #undef __SYSCALL
-#define __SYSCALL(nr, sym)	[nr] = (syscall_fn_t)__arm64_##sym,
+#define __SYSCALL(nr, sym)	[nr] = __arm64_##sym,
 
 const syscall_fn_t sys_call_table[__NR_syscalls] = {
-	[0 ... __NR_syscalls - 1] = (syscall_fn_t)sys_ni_syscall,
+	[0 ... __NR_syscalls - 1] = __arm64_sys_ni_syscall,
 #include <asm/unistd.h>
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/syscall.c linux-libre-5.1.21-gnu/arch/arm64/kernel/syscall.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/syscall.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/syscall.c	2019-07-28 02:28:39.000000000 -0400
@@ -8,6 +8,7 @@
 #include <linux/syscalls.h>
 
 #include <asm/daifflags.h>
+#include <asm/debug-monitors.h>
 #include <asm/fpsimd.h>
 #include <asm/syscall.h>
 #include <asm/thread_info.h>
@@ -60,6 +61,35 @@ static inline bool has_syscall_work(unsi
 int syscall_trace_enter(struct pt_regs *regs);
 void syscall_trace_exit(struct pt_regs *regs);
 
+#ifdef CONFIG_ARM64_ERRATUM_1463225
+DECLARE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
+
+static void cortex_a76_erratum_1463225_svc_handler(void)
+{
+	u32 reg, val;
+
+	if (!unlikely(test_thread_flag(TIF_SINGLESTEP)))
+		return;
+
+	if (!unlikely(this_cpu_has_cap(ARM64_WORKAROUND_1463225)))
+		return;
+
+	__this_cpu_write(__in_cortex_a76_erratum_1463225_wa, 1);
+	reg = read_sysreg(mdscr_el1);
+	val = reg | DBG_MDSCR_SS | DBG_MDSCR_KDE;
+	write_sysreg(val, mdscr_el1);
+	asm volatile("msr daifclr, #8");
+	isb();
+
+	/* We will have taken a single-step exception by this point */
+
+	write_sysreg(reg, mdscr_el1);
+	__this_cpu_write(__in_cortex_a76_erratum_1463225_wa, 0);
+}
+#else
+static void cortex_a76_erratum_1463225_svc_handler(void) { }
+#endif /* CONFIG_ARM64_ERRATUM_1463225 */
+
 static void el0_svc_common(struct pt_regs *regs, int scno, int sc_nr,
 			   const syscall_fn_t syscall_table[])
 {
@@ -68,6 +98,7 @@ static void el0_svc_common(struct pt_reg
 	regs->orig_x0 = regs->regs[0];
 	regs->syscallno = scno;
 
+	cortex_a76_erratum_1463225_svc_handler();
 	local_daif_restore(DAIF_PROCCTX);
 	user_exit();
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/traps.c linux-libre-5.1.21-gnu/arch/arm64/kernel/traps.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/traps.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/traps.c	2019-07-28 02:28:39.000000000 -0400
@@ -256,7 +256,10 @@ void arm64_force_sig_fault(int signo, in
 			   const char *str)
 {
 	arm64_show_signal(signo, str);
-	force_sig_fault(signo, code, addr, current);
+	if (signo == SIGKILL)
+		force_sig(SIGKILL, current);
+	else
+		force_sig_fault(signo, code, addr, current);
 }
 
 void arm64_force_sig_mceerr(int code, void __user *addr, short lsb,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/vdso/gettimeofday.S linux-libre-5.1.21-gnu/arch/arm64/kernel/vdso/gettimeofday.S
--- linux-libre-5.1-gnu/arch/arm64/kernel/vdso/gettimeofday.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/vdso/gettimeofday.S	2019-07-28 02:28:39.000000000 -0400
@@ -73,6 +73,13 @@ x_tmp		.req	x8
 	movn	x_tmp, #0xff00, lsl #48
 	and	\res, x_tmp, \res
 	mul	\res, \res, \mult
+	/*
+	 * Fake address dependency from the value computed from the counter
+	 * register to subsequent data page accesses so that the sequence
+	 * locking also orders the read of the counter.
+	 */
+	and	x_tmp, \res, xzr
+	add	vdso_data, vdso_data, x_tmp
 	.endm
 
 	/*
@@ -147,12 +154,12 @@ ENTRY(__kernel_gettimeofday)
 	/* w11 = cs_mono_mult, w12 = cs_shift */
 	ldp	w11, w12, [vdso_data, #VDSO_CS_MONO_MULT]
 	ldp	x13, x14, [vdso_data, #VDSO_XTIME_CLK_SEC]
-	seqcnt_check fail=1b
 
 	get_nsec_per_sec res=x9
 	lsl	x9, x9, x12
 
 	get_clock_shifted_nsec res=x15, cycle_last=x10, mult=x11
+	seqcnt_check fail=1b
 	get_ts_realtime res_sec=x10, res_nsec=x11, \
 		clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9
 
@@ -211,13 +218,13 @@ realtime:
 	/* w11 = cs_mono_mult, w12 = cs_shift */
 	ldp	w11, w12, [vdso_data, #VDSO_CS_MONO_MULT]
 	ldp	x13, x14, [vdso_data, #VDSO_XTIME_CLK_SEC]
-	seqcnt_check fail=realtime
 
 	/* All computations are done with left-shifted nsecs. */
 	get_nsec_per_sec res=x9
 	lsl	x9, x9, x12
 
 	get_clock_shifted_nsec res=x15, cycle_last=x10, mult=x11
+	seqcnt_check fail=realtime
 	get_ts_realtime res_sec=x10, res_nsec=x11, \
 		clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9
 	clock_gettime_return, shift=1
@@ -231,7 +238,6 @@ monotonic:
 	ldp	w11, w12, [vdso_data, #VDSO_CS_MONO_MULT]
 	ldp	x13, x14, [vdso_data, #VDSO_XTIME_CLK_SEC]
 	ldp	x3, x4, [vdso_data, #VDSO_WTM_CLK_SEC]
-	seqcnt_check fail=monotonic
 
 	/* All computations are done with left-shifted nsecs. */
 	lsl	x4, x4, x12
@@ -239,6 +245,7 @@ monotonic:
 	lsl	x9, x9, x12
 
 	get_clock_shifted_nsec res=x15, cycle_last=x10, mult=x11
+	seqcnt_check fail=monotonic
 	get_ts_realtime res_sec=x10, res_nsec=x11, \
 		clock_nsec=x15, xtime_sec=x13, xtime_nsec=x14, nsec_to_sec=x9
 
@@ -253,13 +260,13 @@ monotonic_raw:
 	/* w11 = cs_raw_mult, w12 = cs_shift */
 	ldp	w12, w11, [vdso_data, #VDSO_CS_SHIFT]
 	ldp	x13, x14, [vdso_data, #VDSO_RAW_TIME_SEC]
-	seqcnt_check fail=monotonic_raw
 
 	/* All computations are done with left-shifted nsecs. */
 	get_nsec_per_sec res=x9
 	lsl	x9, x9, x12
 
 	get_clock_shifted_nsec res=x15, cycle_last=x10, mult=x11
+	seqcnt_check fail=monotonic_raw
 	get_ts_clock_raw res_sec=x10, res_nsec=x11, \
 		clock_nsec=x15, nsec_to_sec=x9
 
@@ -301,13 +308,14 @@ ENTRY(__kernel_clock_getres)
 	ccmp	w0, #CLOCK_MONOTONIC_RAW, #0x4, ne
 	b.ne	1f
 
-	ldr	x2, 5f
+	adr	vdso_data, _vdso_data
+	ldr	w2, [vdso_data, #CLOCK_REALTIME_RES]
 	b	2f
 1:
 	cmp	w0, #CLOCK_REALTIME_COARSE
 	ccmp	w0, #CLOCK_MONOTONIC_COARSE, #0x4, ne
 	b.ne	4f
-	ldr	x2, 6f
+	ldr	x2, 5f
 2:
 	cbz	x1, 3f
 	stp	xzr, x2, [x1]
@@ -321,8 +329,6 @@ ENTRY(__kernel_clock_getres)
 	svc	#0
 	ret
 5:
-	.quad	CLOCK_REALTIME_RES
-6:
 	.quad	CLOCK_COARSE_RES
 	.cfi_endproc
 ENDPROC(__kernel_clock_getres)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kernel/vdso.c linux-libre-5.1.21-gnu/arch/arm64/kernel/vdso.c
--- linux-libre-5.1-gnu/arch/arm64/kernel/vdso.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kernel/vdso.c	2019-07-28 02:28:39.000000000 -0400
@@ -232,6 +232,9 @@ void update_vsyscall(struct timekeeper *
 	vdso_data->wtm_clock_sec		= tk->wall_to_monotonic.tv_sec;
 	vdso_data->wtm_clock_nsec		= tk->wall_to_monotonic.tv_nsec;
 
+	/* Read without the seqlock held by clock_getres() */
+	WRITE_ONCE(vdso_data->hrtimer_res, hrtimer_resolution);
+
 	if (!use_syscall) {
 		/* tkr_mono.cycle_last == tkr_raw.cycle_last */
 		vdso_data->cs_cycle_last	= tk->tkr_mono.cycle_last;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/kvm/hyp/Makefile linux-libre-5.1.21-gnu/arch/arm64/kvm/hyp/Makefile
--- linux-libre-5.1-gnu/arch/arm64/kvm/hyp/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/kvm/hyp/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -10,6 +10,7 @@ KVM=../../../../virt/kvm
 
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
+obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/aarch32.o
 
 obj-$(CONFIG_KVM_ARM_HOST) += vgic-v2-cpuif-proxy.o
 obj-$(CONFIG_KVM_ARM_HOST) += sysreg-sr.o
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/Makefile linux-libre-5.1.21-gnu/arch/arm64/Makefile
--- linux-libre-5.1-gnu/arch/arm64/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -51,6 +51,7 @@ endif
 
 KBUILD_CFLAGS	+= -mgeneral-regs-only $(lseinstr) $(brokengasinst)
 KBUILD_CFLAGS	+= -fno-asynchronous-unwind-tables
+KBUILD_CFLAGS	+= $(call cc-disable-warning, psabi)
 KBUILD_AFLAGS	+= $(lseinstr) $(brokengasinst)
 
 KBUILD_CFLAGS	+= $(call cc-option,-mabi=lp64)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/mm/dma-mapping.c linux-libre-5.1.21-gnu/arch/arm64/mm/dma-mapping.c
--- linux-libre-5.1-gnu/arch/arm64/mm/dma-mapping.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/mm/dma-mapping.c	2019-07-28 02:28:39.000000000 -0400
@@ -249,6 +249,11 @@ static int __iommu_mmap_attrs(struct dev
 	if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
 		return ret;
 
+	if (!is_vmalloc_addr(cpu_addr)) {
+		unsigned long pfn = page_to_pfn(virt_to_page(cpu_addr));
+		return __swiotlb_mmap_pfn(vma, pfn, size);
+	}
+
 	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
 		/*
 		 * DMA_ATTR_FORCE_CONTIGUOUS allocations are always remapped,
@@ -272,6 +277,11 @@ static int __iommu_get_sgtable(struct de
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	struct vm_struct *area = find_vm_area(cpu_addr);
 
+	if (!is_vmalloc_addr(cpu_addr)) {
+		struct page *page = virt_to_page(cpu_addr);
+		return __swiotlb_get_sgtable_page(sgt, page, size);
+	}
+
 	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
 		/*
 		 * DMA_ATTR_FORCE_CONTIGUOUS allocations are always remapped,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/mm/fault.c linux-libre-5.1.21-gnu/arch/arm64/mm/fault.c
--- linux-libre-5.1-gnu/arch/arm64/mm/fault.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/mm/fault.c	2019-07-28 02:28:39.000000000 -0400
@@ -171,9 +171,10 @@ void show_pte(unsigned long addr)
 		return;
 	}
 
-	pr_alert("%s pgtable: %luk pages, %u-bit VAs, pgdp = %p\n",
+	pr_alert("%s pgtable: %luk pages, %u-bit VAs, pgdp=%016lx\n",
 		 mm == &init_mm ? "swapper" : "user", PAGE_SIZE / SZ_1K,
-		 mm == &init_mm ? VA_BITS : (int) vabits_user, mm->pgd);
+		 mm == &init_mm ? VA_BITS : (int)vabits_user,
+		 (unsigned long)virt_to_phys(mm->pgd));
 	pgdp = pgd_offset(mm, addr);
 	pgd = READ_ONCE(*pgdp);
 	pr_alert("[%016lx] pgd=%016llx", addr, pgd_val(pgd));
@@ -810,14 +811,47 @@ void __init hook_debug_fault_code(int nr
 	debug_fault_info[nr].name	= name;
 }
 
+#ifdef CONFIG_ARM64_ERRATUM_1463225
+DECLARE_PER_CPU(int, __in_cortex_a76_erratum_1463225_wa);
+
+static int __exception
+cortex_a76_erratum_1463225_debug_handler(struct pt_regs *regs)
+{
+	if (user_mode(regs))
+		return 0;
+
+	if (!__this_cpu_read(__in_cortex_a76_erratum_1463225_wa))
+		return 0;
+
+	/*
+	 * We've taken a dummy step exception from the kernel to ensure
+	 * that interrupts are re-enabled on the syscall path. Return back
+	 * to cortex_a76_erratum_1463225_svc_handler() with debug exceptions
+	 * masked so that we can safely restore the mdscr and get on with
+	 * handling the syscall.
+	 */
+	regs->pstate |= PSR_D_BIT;
+	return 1;
+}
+#else
+static int __exception
+cortex_a76_erratum_1463225_debug_handler(struct pt_regs *regs)
+{
+	return 0;
+}
+#endif /* CONFIG_ARM64_ERRATUM_1463225 */
+
 asmlinkage int __exception do_debug_exception(unsigned long addr_if_watchpoint,
-					      unsigned int esr,
-					      struct pt_regs *regs)
+					       unsigned int esr,
+					       struct pt_regs *regs)
 {
 	const struct fault_info *inf = esr_to_debug_fault_info(esr);
 	unsigned long pc = instruction_pointer(regs);
 	int rv;
 
+	if (cortex_a76_erratum_1463225_debug_handler(regs))
+		return 0;
+
 	/*
 	 * Tell lockdep we disabled irqs in entry.S. Do nothing if they were
 	 * already disabled to preserve the last enabled/disabled addresses.
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/mm/init.c linux-libre-5.1.21-gnu/arch/arm64/mm/init.c
--- linux-libre-5.1-gnu/arch/arm64/mm/init.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/mm/init.c	2019-07-28 02:28:39.000000000 -0400
@@ -191,8 +191,9 @@ static void __init zone_sizes_init(unsig
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES]  = {0};
 
-	if (IS_ENABLED(CONFIG_ZONE_DMA32))
-		max_zone_pfns[ZONE_DMA32] = PFN_DOWN(max_zone_dma_phys());
+#ifdef CONFIG_ZONE_DMA32
+	max_zone_pfns[ZONE_DMA32] = PFN_DOWN(max_zone_dma_phys());
+#endif
 	max_zone_pfns[ZONE_NORMAL] = max;
 
 	free_area_init_nodes(max_zone_pfns);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/mm/mmu.c linux-libre-5.1.21-gnu/arch/arm64/mm/mmu.c
--- linux-libre-5.1-gnu/arch/arm64/mm/mmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/mm/mmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -936,13 +936,18 @@ void *__init fixmap_remap_fdt(phys_addr_
 
 int __init arch_ioremap_pud_supported(void)
 {
-	/* only 4k granule supports level 1 block mappings */
-	return IS_ENABLED(CONFIG_ARM64_4K_PAGES);
+	/*
+	 * Only 4k granule supports level 1 block mappings.
+	 * SW table walks can't handle removal of intermediate entries.
+	 */
+	return IS_ENABLED(CONFIG_ARM64_4K_PAGES) &&
+	       !IS_ENABLED(CONFIG_ARM64_PTDUMP_DEBUGFS);
 }
 
 int __init arch_ioremap_pmd_supported(void)
 {
-	return 1;
+	/* See arch_ioremap_pud_supported() */
+	return !IS_ENABLED(CONFIG_ARM64_PTDUMP_DEBUGFS);
 }
 
 int pud_set_huge(pud_t *pudp, phys_addr_t phys, pgprot_t prot)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/mm/proc.S linux-libre-5.1.21-gnu/arch/arm64/mm/proc.S
--- linux-libre-5.1-gnu/arch/arm64/mm/proc.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/mm/proc.S	2019-07-28 02:28:39.000000000 -0400
@@ -65,24 +65,25 @@ ENTRY(cpu_do_suspend)
 	mrs	x2, tpidr_el0
 	mrs	x3, tpidrro_el0
 	mrs	x4, contextidr_el1
-	mrs	x5, cpacr_el1
-	mrs	x6, tcr_el1
-	mrs	x7, vbar_el1
-	mrs	x8, mdscr_el1
-	mrs	x9, oslsr_el1
-	mrs	x10, sctlr_el1
+	mrs	x5, osdlr_el1
+	mrs	x6, cpacr_el1
+	mrs	x7, tcr_el1
+	mrs	x8, vbar_el1
+	mrs	x9, mdscr_el1
+	mrs	x10, oslsr_el1
+	mrs	x11, sctlr_el1
 alternative_if_not ARM64_HAS_VIRT_HOST_EXTN
-	mrs	x11, tpidr_el1
+	mrs	x12, tpidr_el1
 alternative_else
-	mrs	x11, tpidr_el2
+	mrs	x12, tpidr_el2
 alternative_endif
-	mrs	x12, sp_el0
+	mrs	x13, sp_el0
 	stp	x2, x3, [x0]
-	stp	x4, xzr, [x0, #16]
-	stp	x5, x6, [x0, #32]
-	stp	x7, x8, [x0, #48]
-	stp	x9, x10, [x0, #64]
-	stp	x11, x12, [x0, #80]
+	stp	x4, x5, [x0, #16]
+	stp	x6, x7, [x0, #32]
+	stp	x8, x9, [x0, #48]
+	stp	x10, x11, [x0, #64]
+	stp	x12, x13, [x0, #80]
 	ret
 ENDPROC(cpu_do_suspend)
 
@@ -105,8 +106,8 @@ ENTRY(cpu_do_resume)
 	msr	cpacr_el1, x6
 
 	/* Don't change t0sz here, mask those bits when restoring */
-	mrs	x5, tcr_el1
-	bfi	x8, x5, TCR_T0SZ_OFFSET, TCR_TxSZ_WIDTH
+	mrs	x7, tcr_el1
+	bfi	x8, x7, TCR_T0SZ_OFFSET, TCR_TxSZ_WIDTH
 
 	msr	tcr_el1, x8
 	msr	vbar_el1, x9
@@ -130,6 +131,7 @@ alternative_endif
 	/*
 	 * Restore oslsr_el1 by writing oslar_el1
 	 */
+	msr	osdlr_el1, x5
 	ubfx	x11, x11, #1, #1
 	msr	oslar_el1, x11
 	reset_pmuserenr_el0 x0			// Disable PMU access from EL0
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/net/bpf_jit_comp.c linux-libre-5.1.21-gnu/arch/arm64/net/bpf_jit_comp.c
--- linux-libre-5.1-gnu/arch/arm64/net/bpf_jit_comp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/net/bpf_jit_comp.c	2019-07-28 02:28:39.000000000 -0400
@@ -365,7 +365,7 @@ static int build_insn(const struct bpf_i
 	const bool is64 = BPF_CLASS(code) == BPF_ALU64 ||
 			  BPF_CLASS(code) == BPF_JMP;
 	const bool isdw = BPF_SIZE(code) == BPF_DW;
-	u8 jmp_cond;
+	u8 jmp_cond, reg;
 	s32 jmp_offset;
 
 #define check_imm(bits, imm) do {				\
@@ -756,19 +756,28 @@ emit_cond_jmp:
 			break;
 		}
 		break;
+
 	/* STX XADD: lock *(u32 *)(dst + off) += src */
 	case BPF_STX | BPF_XADD | BPF_W:
 	/* STX XADD: lock *(u64 *)(dst + off) += src */
 	case BPF_STX | BPF_XADD | BPF_DW:
-		emit_a64_mov_i(1, tmp, off, ctx);
-		emit(A64_ADD(1, tmp, tmp, dst), ctx);
-		emit(A64_PRFM(tmp, PST, L1, STRM), ctx);
-		emit(A64_LDXR(isdw, tmp2, tmp), ctx);
-		emit(A64_ADD(isdw, tmp2, tmp2, src), ctx);
-		emit(A64_STXR(isdw, tmp2, tmp, tmp3), ctx);
-		jmp_offset = -3;
-		check_imm19(jmp_offset);
-		emit(A64_CBNZ(0, tmp3, jmp_offset), ctx);
+		if (!off) {
+			reg = dst;
+		} else {
+			emit_a64_mov_i(1, tmp, off, ctx);
+			emit(A64_ADD(1, tmp, tmp, dst), ctx);
+			reg = tmp;
+		}
+		if (cpus_have_cap(ARM64_HAS_LSE_ATOMICS)) {
+			emit(A64_STADD(isdw, reg, src), ctx);
+		} else {
+			emit(A64_LDXR(isdw, tmp2, reg), ctx);
+			emit(A64_ADD(isdw, tmp2, tmp2, src), ctx);
+			emit(A64_STXR(isdw, tmp2, reg, tmp3), ctx);
+			jmp_offset = -3;
+			check_imm19(jmp_offset);
+			emit(A64_CBNZ(0, tmp3, jmp_offset), ctx);
+		}
 		break;
 
 	default:
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/arm64/net/bpf_jit.h linux-libre-5.1.21-gnu/arch/arm64/net/bpf_jit.h
--- linux-libre-5.1-gnu/arch/arm64/net/bpf_jit.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/arm64/net/bpf_jit.h	2019-07-28 02:28:39.000000000 -0400
@@ -100,11 +100,9 @@
 #define A64_STXR(sf, Rt, Rn, Rs) \
 	A64_LSX(sf, Rt, Rn, Rs, STORE_EX)
 
-/* Prefetch */
-#define A64_PRFM(Rn, type, target, policy) \
-	aarch64_insn_gen_prefetch(Rn, AARCH64_INSN_PRFM_TYPE_##type, \
-				  AARCH64_INSN_PRFM_TARGET_##target, \
-				  AARCH64_INSN_PRFM_POLICY_##policy)
+/* LSE atomics */
+#define A64_STADD(sf, Rn, Rs) \
+	aarch64_insn_gen_stadd(Rn, Rs, A64_SIZE(sf))
 
 /* Add/subtract (immediate) */
 #define A64_ADDSUB_IMM(sf, Rd, Rn, imm12, type) \
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/ia64/mm/numa.c linux-libre-5.1.21-gnu/arch/ia64/mm/numa.c
--- linux-libre-5.1-gnu/arch/ia64/mm/numa.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/ia64/mm/numa.c	2019-07-28 02:28:39.000000000 -0400
@@ -55,6 +55,7 @@ paddr_to_nid(unsigned long paddr)
 
 	return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0);
 }
+EXPORT_SYMBOL(paddr_to_nid);
 
 #if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA)
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/Kconfig linux-libre-5.1.21-gnu/arch/Kconfig
--- linux-libre-5.1-gnu/arch/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -764,7 +764,7 @@ config COMPAT_OLD_SIGACTION
 	bool
 
 config 64BIT_TIME
-	def_bool ARCH_HAS_64BIT_TIME
+	def_bool y
 	help
 	  This should be selected by all architectures that need to support
 	  new system calls with a 64-bit time_t. This is relevant on all 32-bit
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c linux-libre-5.1.21-gnu/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
--- linux-libre-5.1-gnu/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c	2019-07-28 02:28:39.000000000 -0400
@@ -13,7 +13,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "../../../../include/linux/sizes.h"
+#include <linux/sizes.h>
 
 int main(int argc, char *argv[])
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/boot/compressed/Makefile linux-libre-5.1.21-gnu/arch/mips/boot/compressed/Makefile
--- linux-libre-5.1-gnu/arch/mips/boot/compressed/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/boot/compressed/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -78,6 +78,8 @@ OBJCOPYFLAGS_piggy.o := --add-section=.i
 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
 	$(call if_changed,objcopy)
 
+HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
+
 # Calculate the load address of the compressed kernel image
 hostprogs-y := calc_vmlinuz_load_addr
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/include/asm/ginvt.h linux-libre-5.1.21-gnu/arch/mips/include/asm/ginvt.h
--- linux-libre-5.1-gnu/arch/mips/include/asm/ginvt.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/include/asm/ginvt.h	2019-07-28 02:28:39.000000000 -0400
@@ -19,7 +19,7 @@ _ASM_MACRO_1R1I(ginvt, rs, type,
 # define _ASM_SET_GINV
 #endif
 
-static inline void ginvt(unsigned long addr, enum ginvt_type type)
+static __always_inline void ginvt(unsigned long addr, enum ginvt_type type)
 {
 	asm volatile(
 		".set	push\n"
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/include/asm/mach-ath79/ar933x_uart.h linux-libre-5.1.21-gnu/arch/mips/include/asm/mach-ath79/ar933x_uart.h
--- linux-libre-5.1-gnu/arch/mips/include/asm/mach-ath79/ar933x_uart.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/include/asm/mach-ath79/ar933x_uart.h	2019-07-28 02:28:39.000000000 -0400
@@ -27,8 +27,8 @@
 #define AR933X_UART_CS_PARITY_S		0
 #define AR933X_UART_CS_PARITY_M		0x3
 #define	  AR933X_UART_CS_PARITY_NONE	0
-#define	  AR933X_UART_CS_PARITY_ODD	1
-#define	  AR933X_UART_CS_PARITY_EVEN	2
+#define	  AR933X_UART_CS_PARITY_ODD	2
+#define	  AR933X_UART_CS_PARITY_EVEN	3
 #define AR933X_UART_CS_IF_MODE_S	2
 #define AR933X_UART_CS_IF_MODE_M	0x3
 #define	  AR933X_UART_CS_IF_MODE_NONE	0
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/include/asm/mips-gic.h linux-libre-5.1.21-gnu/arch/mips/include/asm/mips-gic.h
--- linux-libre-5.1-gnu/arch/mips/include/asm/mips-gic.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/include/asm/mips-gic.h	2019-07-28 02:28:39.000000000 -0400
@@ -315,6 +315,36 @@ static inline bool mips_gic_present(void
 }
 
 /**
+ * mips_gic_vx_map_reg() - Return GIC_Vx_<intr>_MAP register offset
+ * @intr: A GIC local interrupt
+ *
+ * Determine the index of the GIC_VL_<intr>_MAP or GIC_VO_<intr>_MAP register
+ * within the block of GIC map registers. This is almost the same as the order
+ * of interrupts in the pending & mask registers, as used by enum
+ * mips_gic_local_interrupt, but moves the FDC interrupt & thus offsets the
+ * interrupts after it...
+ *
+ * Return: The map register index corresponding to @intr.
+ *
+ * The return value is suitable for use with the (read|write)_gic_v[lo]_map
+ * accessor functions.
+ */
+static inline unsigned int
+mips_gic_vx_map_reg(enum mips_gic_local_interrupt intr)
+{
+	/* WD, Compare & Timer are 1:1 */
+	if (intr <= GIC_LOCAL_INT_TIMER)
+		return intr;
+
+	/* FDC moves to after Timer... */
+	if (intr == GIC_LOCAL_INT_FDC)
+		return GIC_LOCAL_INT_TIMER + 1;
+
+	/* As a result everything else is offset by 1 */
+	return intr + 1;
+}
+
+/**
  * gic_get_c0_compare_int() - Return cp0 count/compare interrupt virq
  *
  * Determine the virq number to use for the coprocessor 0 count/compare
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/jz4740/board-qi_lb60.c linux-libre-5.1.21-gnu/arch/mips/jz4740/board-qi_lb60.c
--- linux-libre-5.1-gnu/arch/mips/jz4740/board-qi_lb60.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/jz4740/board-qi_lb60.c	2019-07-28 02:28:39.000000000 -0400
@@ -469,27 +469,27 @@ static unsigned long pin_cfg_bias_disabl
 static struct pinctrl_map pin_map[] __initdata = {
 	/* NAND pin configuration */
 	PIN_MAP_MUX_GROUP_DEFAULT("jz4740-nand",
-			"10010000.jz4740-pinctrl", "nand", "nand-cs1"),
+			"10010000.pin-controller", "nand-cs1", "nand"),
 
 	/* fbdev pin configuration */
 	PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_DEFAULT,
-			"10010000.jz4740-pinctrl", "lcd", "lcd-8bit"),
+			"10010000.pin-controller", "lcd-8bit", "lcd"),
 	PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_SLEEP,
-			"10010000.jz4740-pinctrl", "lcd", "lcd-no-pins"),
+			"10010000.pin-controller", "lcd-no-pins", "lcd"),
 
 	/* MMC pin configuration */
 	PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
-			"10010000.jz4740-pinctrl", "mmc", "mmc-1bit"),
+			"10010000.pin-controller", "mmc-1bit", "mmc"),
 	PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
-			"10010000.jz4740-pinctrl", "mmc", "mmc-4bit"),
+			"10010000.pin-controller", "mmc-4bit", "mmc"),
 	PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
-			"10010000.jz4740-pinctrl", "PD0", pin_cfg_bias_disable),
+			"10010000.pin-controller", "PD0", pin_cfg_bias_disable),
 	PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
-			"10010000.jz4740-pinctrl", "PD2", pin_cfg_bias_disable),
+			"10010000.pin-controller", "PD2", pin_cfg_bias_disable),
 
 	/* PWM pin configuration */
 	PIN_MAP_MUX_GROUP_DEFAULT("jz4740-pwm",
-			"10010000.jz4740-pinctrl", "pwm4", "pwm4"),
+			"10010000.pin-controller", "pwm4", "pwm4"),
 };
 
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/kernel/perf_event_mipsxx.c linux-libre-5.1.21-gnu/arch/mips/kernel/perf_event_mipsxx.c
--- linux-libre-5.1-gnu/arch/mips/kernel/perf_event_mipsxx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/kernel/perf_event_mipsxx.c	2019-07-28 02:28:39.000000000 -0400
@@ -64,17 +64,11 @@ struct mips_perf_event {
 	#define CNTR_EVEN	0x55555555
 	#define CNTR_ODD	0xaaaaaaaa
 	#define CNTR_ALL	0xffffffff
-#ifdef CONFIG_MIPS_MT_SMP
 	enum {
 		T  = 0,
 		V  = 1,
 		P  = 2,
 	} range;
-#else
-	#define T
-	#define V
-	#define P
-#endif
 };
 
 static struct mips_perf_event raw_event;
@@ -325,9 +319,7 @@ static void mipsxx_pmu_enable_event(stru
 {
 	struct perf_event *event = container_of(evt, struct perf_event, hw);
 	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
-#ifdef CONFIG_MIPS_MT_SMP
 	unsigned int range = evt->event_base >> 24;
-#endif /* CONFIG_MIPS_MT_SMP */
 
 	WARN_ON(idx < 0 || idx >= mipspmu.num_counters);
 
@@ -336,21 +328,15 @@ static void mipsxx_pmu_enable_event(stru
 		/* Make sure interrupt enabled. */
 		MIPS_PERFCTRL_IE;
 
-#ifdef CONFIG_CPU_BMIPS5000
-	{
+	if (IS_ENABLED(CONFIG_CPU_BMIPS5000)) {
 		/* enable the counter for the calling thread */
 		cpuc->saved_ctrl[idx] |=
 			(1 << (12 + vpe_id())) | BRCM_PERFCTRL_TC;
-	}
-#else
-#ifdef CONFIG_MIPS_MT_SMP
-	if (range > V) {
+	} else if (IS_ENABLED(CONFIG_MIPS_MT_SMP) && range > V) {
 		/* The counter is processor wide. Set it up to count all TCs. */
 		pr_debug("Enabling perf counter for all TCs\n");
 		cpuc->saved_ctrl[idx] |= M_TC_EN_ALL;
-	} else
-#endif /* CONFIG_MIPS_MT_SMP */
-	{
+	} else {
 		unsigned int cpu, ctrl;
 
 		/*
@@ -365,7 +351,6 @@ static void mipsxx_pmu_enable_event(stru
 		cpuc->saved_ctrl[idx] |= ctrl;
 		pr_debug("Enabling perf counter for CPU%d\n", cpu);
 	}
-#endif /* CONFIG_CPU_BMIPS5000 */
 	/*
 	 * We do not actually let the counter run. Leave it until start().
 	 */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/kernel/prom.c linux-libre-5.1.21-gnu/arch/mips/kernel/prom.c
--- linux-libre-5.1-gnu/arch/mips/kernel/prom.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/kernel/prom.c	2019-07-28 02:28:39.000000000 -0400
@@ -41,7 +41,19 @@ char *mips_get_machine_name(void)
 #ifdef CONFIG_USE_OF
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
-	return add_memory_region(base, size, BOOT_MEM_RAM);
+	if (base >= PHYS_ADDR_MAX) {
+		pr_warn("Trying to add an invalid memory region, skipped\n");
+		return;
+	}
+
+	/* Truncate the passed memory region instead of type casting */
+	if (base + size - 1 >= PHYS_ADDR_MAX || base + size < base) {
+		pr_warn("Truncate memory region %llx @ %llx to size %llx\n",
+			size, base, PHYS_ADDR_MAX - base);
+		size = PHYS_ADDR_MAX - base;
+	}
+
+	add_memory_region(base, size, BOOT_MEM_RAM);
 }
 
 int __init early_init_dt_reserve_memory_arch(phys_addr_t base,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/kernel/uprobes.c linux-libre-5.1.21-gnu/arch/mips/kernel/uprobes.c
--- linux-libre-5.1-gnu/arch/mips/kernel/uprobes.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/kernel/uprobes.c	2019-07-28 02:28:39.000000000 -0400
@@ -112,9 +112,6 @@ int arch_uprobe_pre_xol(struct arch_upro
 	 */
 	aup->resume_epc = regs->cp0_epc + 4;
 	if (insn_has_delay_slot((union mips_instruction) aup->insn[0])) {
-		unsigned long epc;
-
-		epc = regs->cp0_epc;
 		__compute_return_epc_for_insn(regs,
 			(union mips_instruction) aup->insn[0]);
 		aup->resume_epc = regs->cp0_epc;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/kvm/mips.c linux-libre-5.1.21-gnu/arch/mips/kvm/mips.c
--- linux-libre-5.1-gnu/arch/mips/kvm/mips.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/kvm/mips.c	2019-07-28 02:28:39.000000000 -0400
@@ -1122,6 +1122,9 @@ int kvm_vm_ioctl_check_extension(struct
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
 		break;
+	case KVM_CAP_MAX_VCPU_ID:
+		r = KVM_MAX_VCPU_ID;
+		break;
 	case KVM_CAP_MIPS_FPU:
 		/* We don't handle systems with inconsistent cpu_has_fpu */
 		r = !!raw_cpu_has_fpu;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/Makefile linux-libre-5.1.21-gnu/arch/mips/Makefile
--- linux-libre-5.1-gnu/arch/mips/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -17,6 +17,7 @@ archscripts: scripts_basic
 	$(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
 
 KBUILD_DEFCONFIG := 32r2el_defconfig
+KBUILD_DTBS      := dtbs
 
 #
 # Select the object file format to substitute into the linker script.
@@ -384,7 +385,7 @@ quiet_cmd_64 = OBJCOPY $@
 vmlinux.64: vmlinux
 	$(call cmd,64)
 
-all:	$(all-y)
+all:	$(all-y) $(KBUILD_DTBS)
 
 # boot
 $(boot-y): $(vmlinux-32) FORCE
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/mm/mmap.c linux-libre-5.1.21-gnu/arch/mips/mm/mmap.c
--- linux-libre-5.1-gnu/arch/mips/mm/mmap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/mm/mmap.c	2019-07-28 02:28:39.000000000 -0400
@@ -203,6 +203,11 @@ unsigned long arch_randomize_brk(struct
 
 int __virt_addr_valid(const volatile void *kaddr)
 {
+	unsigned long vaddr = (unsigned long)kaddr;
+
+	if ((vaddr < PAGE_OFFSET) || (vaddr >= MAP_BASE))
+		return 0;
+
 	return pfn_valid(PFN_DOWN(virt_to_phys(kaddr)));
 }
 EXPORT_SYMBOL_GPL(__virt_addr_valid);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/mm/tlbex.c linux-libre-5.1.21-gnu/arch/mips/mm/tlbex.c
--- linux-libre-5.1-gnu/arch/mips/mm/tlbex.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/mm/tlbex.c	2019-07-28 02:28:39.000000000 -0400
@@ -391,6 +391,7 @@ static struct work_registers build_get_w
 static void build_restore_work_registers(u32 **p)
 {
 	if (scratch_reg >= 0) {
+		uasm_i_ehb(p);
 		UASM_i_MFC0(p, 1, c0_kscratch(), scratch_reg);
 		return;
 	}
@@ -668,10 +669,12 @@ static void build_restore_pagemask(u32 *
 			uasm_i_mtc0(p, 0, C0_PAGEMASK);
 			uasm_il_b(p, r, lid);
 		}
-		if (scratch_reg >= 0)
+		if (scratch_reg >= 0) {
+			uasm_i_ehb(p);
 			UASM_i_MFC0(p, 1, c0_kscratch(), scratch_reg);
-		else
+		} else {
 			UASM_i_LW(p, 1, scratchpad_offset(0), 0);
+		}
 	} else {
 		/* Reset default page size */
 		if (PM_DEFAULT_MASK >> 16) {
@@ -938,10 +941,12 @@ build_get_pgd_vmalloc64(u32 **p, struct
 		uasm_i_jr(p, ptr);
 
 		if (mode == refill_scratch) {
-			if (scratch_reg >= 0)
+			if (scratch_reg >= 0) {
+				uasm_i_ehb(p);
 				UASM_i_MFC0(p, 1, c0_kscratch(), scratch_reg);
-			else
+			} else {
 				UASM_i_LW(p, 1, scratchpad_offset(0), 0);
+			}
 		} else {
 			uasm_i_nop(p);
 		}
@@ -1258,6 +1263,7 @@ build_fast_tlb_refill_handler (u32 **p,
 	UASM_i_MTC0(p, odd, C0_ENTRYLO1); /* load it */
 
 	if (c0_scratch_reg >= 0) {
+		uasm_i_ehb(p);
 		UASM_i_MFC0(p, scratch, c0_kscratch(), c0_scratch_reg);
 		build_tlb_write_entry(p, l, r, tlb_random);
 		uasm_l_leave(l, *p);
@@ -1603,15 +1609,17 @@ static void build_setup_pgd(void)
 		uasm_i_dinsm(&p, a0, 0, 29, 64 - 29);
 		uasm_l_tlbl_goaround1(&l, p);
 		UASM_i_SLL(&p, a0, a0, 11);
-		uasm_i_jr(&p, 31);
 		UASM_i_MTC0(&p, a0, C0_CONTEXT);
+		uasm_i_jr(&p, 31);
+		uasm_i_ehb(&p);
 	} else {
 		/* PGD in c0_KScratch */
-		uasm_i_jr(&p, 31);
 		if (cpu_has_ldpte)
 			UASM_i_MTC0(&p, a0, C0_PWBASE);
 		else
 			UASM_i_MTC0(&p, a0, c0_kscratch(), pgd_reg);
+		uasm_i_jr(&p, 31);
+		uasm_i_ehb(&p);
 	}
 #else
 #ifdef CONFIG_SMP
@@ -1625,13 +1633,16 @@ static void build_setup_pgd(void)
 	UASM_i_LA_mostly(&p, a2, pgdc);
 	UASM_i_SW(&p, a0, uasm_rel_lo(pgdc), a2);
 #endif /* SMP */
-	uasm_i_jr(&p, 31);
 
 	/* if pgd_reg is allocated, save PGD also to scratch register */
-	if (pgd_reg != -1)
+	if (pgd_reg != -1) {
 		UASM_i_MTC0(&p, a0, c0_kscratch(), pgd_reg);
-	else
+		uasm_i_jr(&p, 31);
+		uasm_i_ehb(&p);
+	} else {
+		uasm_i_jr(&p, 31);
 		uasm_i_nop(&p);
+	}
 #endif
 	if (p >= (u32 *)tlbmiss_handler_setup_pgd_end)
 		panic("tlbmiss_handler_setup_pgd space exceeded");
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/mips/pistachio/Platform linux-libre-5.1.21-gnu/arch/mips/pistachio/Platform
--- linux-libre-5.1-gnu/arch/mips/pistachio/Platform	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/mips/pistachio/Platform	2019-07-28 02:28:39.000000000 -0400
@@ -6,3 +6,4 @@ cflags-$(CONFIG_MACH_PISTACHIO)		+=				\
 		-I$(srctree)/arch/mips/include/asm/mach-pistachio
 load-$(CONFIG_MACH_PISTACHIO)		+= 0xffffffff80400000
 zload-$(CONFIG_MACH_PISTACHIO)		+= 0xffffffff81000000
+all-$(CONFIG_MACH_PISTACHIO)		:= uImage.gz
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/boot/compressed/head.S linux-libre-5.1.21-gnu/arch/parisc/boot/compressed/head.S
--- linux-libre-5.1-gnu/arch/parisc/boot/compressed/head.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/boot/compressed/head.S	2019-07-28 02:28:39.000000000 -0400
@@ -22,7 +22,7 @@
 	__HEAD
 
 ENTRY(startup)
-	 .level LEVEL
+	 .level PA_ASM_LEVEL
 
 #define PSW_W_SM	0x200
 #define PSW_W_BIT       36
@@ -63,7 +63,7 @@ $bss_loop:
 	load32	BOOTADDR(decompress_kernel),%r3
 
 #ifdef CONFIG_64BIT
-	.level LEVEL
+	.level PA_ASM_LEVEL
 	ssm	PSW_W_SM, %r0		/* set W-bit */
 	depdi	0, 31, 32, %r3
 #endif
@@ -72,7 +72,7 @@ $bss_loop:
 
 startup_continue:
 #ifdef CONFIG_64BIT
-	.level LEVEL
+	.level PA_ASM_LEVEL
 	rsm	PSW_W_SM, %r0		/* clear W-bit */
 #endif
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/include/asm/assembly.h linux-libre-5.1.21-gnu/arch/parisc/include/asm/assembly.h
--- linux-libre-5.1-gnu/arch/parisc/include/asm/assembly.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/include/asm/assembly.h	2019-07-28 02:28:39.000000000 -0400
@@ -61,14 +61,14 @@
 #define LDCW		ldcw,co
 #define BL		b,l
 # ifdef CONFIG_64BIT
-#  define LEVEL		2.0w
+#  define PA_ASM_LEVEL	2.0w
 # else
-#  define LEVEL		2.0
+#  define PA_ASM_LEVEL	2.0
 # endif
 #else
 #define LDCW		ldcw
 #define BL		bl
-#define LEVEL		1.1
+#define PA_ASM_LEVEL	1.1
 #endif
 
 #ifdef __ASSEMBLY__
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/include/asm/cache.h linux-libre-5.1.21-gnu/arch/parisc/include/asm/cache.h
--- linux-libre-5.1-gnu/arch/parisc/include/asm/cache.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/include/asm/cache.h	2019-07-28 02:28:39.000000000 -0400
@@ -44,22 +44,22 @@ void parisc_setup_cache_timing(void);
 
 #define pdtlb(addr)	asm volatile("pdtlb 0(%%sr1,%0)" \
 			ALTERNATIVE(ALT_COND_NO_SMP, INSN_PxTLB) \
-			: : "r" (addr))
+			: : "r" (addr) : "memory")
 #define pitlb(addr)	asm volatile("pitlb 0(%%sr1,%0)" \
 			ALTERNATIVE(ALT_COND_NO_SMP, INSN_PxTLB) \
 			ALTERNATIVE(ALT_COND_NO_SPLIT_TLB, INSN_NOP) \
-			: : "r" (addr))
+			: : "r" (addr) : "memory")
 #define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)"   \
 			ALTERNATIVE(ALT_COND_NO_SMP, INSN_PxTLB) \
-			: : "r" (addr))
+			: : "r" (addr) : "memory")
 
 #define asm_io_fdc(addr) asm volatile("fdc %%r0(%0)" \
 			ALTERNATIVE(ALT_COND_NO_DCACHE, INSN_NOP) \
 			ALTERNATIVE(ALT_COND_NO_IOC_FDC, INSN_NOP) \
-			: : "r" (addr))
+			: : "r" (addr) : "memory")
 #define asm_io_sync()	asm volatile("sync" \
 			ALTERNATIVE(ALT_COND_NO_DCACHE, INSN_NOP) \
-			ALTERNATIVE(ALT_COND_NO_IOC_FDC, INSN_NOP) :: )
+			ALTERNATIVE(ALT_COND_NO_IOC_FDC, INSN_NOP) :::"memory")
 
 #endif /* ! __ASSEMBLY__ */
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/kernel/alternative.c linux-libre-5.1.21-gnu/arch/parisc/kernel/alternative.c
--- linux-libre-5.1-gnu/arch/parisc/kernel/alternative.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/kernel/alternative.c	2019-07-28 02:28:39.000000000 -0400
@@ -56,7 +56,8 @@ void __init_or_module apply_alternatives
 		 * time IO-PDIR is changed in Ike/Astro.
 		 */
 		if ((cond & ALT_COND_NO_IOC_FDC) &&
-			(boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC))
+			((boot_cpu_data.cpu_type <= pcxw_) ||
+			 (boot_cpu_data.pdc.capabilities & PDC_MODEL_IOPDIR_FDC)))
 			continue;
 
 		/* Want to replace pdtlb by a pdtlb,l instruction? */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/kernel/head.S linux-libre-5.1.21-gnu/arch/parisc/kernel/head.S
--- linux-libre-5.1-gnu/arch/parisc/kernel/head.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/kernel/head.S	2019-07-28 02:28:39.000000000 -0400
@@ -22,7 +22,7 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 
-	.level	LEVEL
+	.level	PA_ASM_LEVEL
 
 	__INITDATA
 ENTRY(boot_args)
@@ -258,7 +258,7 @@ stext_pdc_ret:
 	ldo		R%PA(fault_vector_11)(%r10),%r10
 
 $is_pa20:
-	.level		LEVEL /* restore 1.1 || 2.0w */
+	.level		PA_ASM_LEVEL /* restore 1.1 || 2.0w */
 #endif /*!CONFIG_64BIT*/
 	load32		PA(fault_vector_20),%r10
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/kernel/process.c linux-libre-5.1.21-gnu/arch/parisc/kernel/process.c
--- linux-libre-5.1-gnu/arch/parisc/kernel/process.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/kernel/process.c	2019-07-28 02:28:39.000000000 -0400
@@ -193,6 +193,7 @@ int dump_task_fpu (struct task_struct *t
  */
 
 int running_on_qemu __read_mostly;
+EXPORT_SYMBOL(running_on_qemu);
 
 void __cpuidle arch_cpu_idle_dead(void)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/kernel/ptrace.c linux-libre-5.1.21-gnu/arch/parisc/kernel/ptrace.c
--- linux-libre-5.1-gnu/arch/parisc/kernel/ptrace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/kernel/ptrace.c	2019-07-28 02:28:39.000000000 -0400
@@ -167,6 +167,9 @@ long arch_ptrace(struct task_struct *chi
 		if ((addr & (sizeof(unsigned long)-1)) ||
 		     addr >= sizeof(struct pt_regs))
 			break;
+		if (addr == PT_IAOQ0 || addr == PT_IAOQ1) {
+			data |= 3; /* ensure userspace privilege */
+		}
 		if ((addr >= PT_GR1 && addr <= PT_GR31) ||
 				addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
 				(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
@@ -228,16 +231,18 @@ long arch_ptrace(struct task_struct *chi
 
 static compat_ulong_t translate_usr_offset(compat_ulong_t offset)
 {
-	if (offset < 0)
-		return sizeof(struct pt_regs);
-	else if (offset <= 32*4)	/* gr[0..31] */
-		return offset * 2 + 4;
-	else if (offset <= 32*4+32*8)	/* gr[0..31] + fr[0..31] */
-		return offset + 32*4;
-	else if (offset < sizeof(struct pt_regs)/2 + 32*4)
-		return offset * 2 + 4 - 32*8;
+	compat_ulong_t pos;
+
+	if (offset < 32*4)	/* gr[0..31] */
+		pos = offset * 2 + 4;
+	else if (offset < 32*4+32*8)	/* fr[0] ... fr[31] */
+		pos = (offset - 32*4) + PT_FR0;
+	else if (offset < sizeof(struct pt_regs)/2 + 32*4) /* sr[0] ... ipsw */
+		pos = (offset - 32*4 - 32*8) * 2 + PT_SR0 + 4;
 	else
-		return sizeof(struct pt_regs);
+		pos = sizeof(struct pt_regs);
+
+	return pos;
 }
 
 long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
@@ -281,9 +286,12 @@ long compat_arch_ptrace(struct task_stru
 			addr = translate_usr_offset(addr);
 			if (addr >= sizeof(struct pt_regs))
 				break;
+			if (addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4) {
+				data |= 3; /* ensure userspace privilege */
+			}
 			if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
 				/* Special case, fp regs are 64 bits anyway */
-				*(__u64 *) ((char *) task_regs(child) + addr) = data;
+				*(__u32 *) ((char *) task_regs(child) + addr) = data;
 				ret = 0;
 			}
 			else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||
@@ -496,7 +504,8 @@ static void set_reg(struct pt_regs *regs
 			return;
 	case RI(iaoq[0]):
 	case RI(iaoq[1]):
-			regs->iaoq[num - RI(iaoq[0])] = val;
+			/* set 2 lowest bits to ensure userspace privilege: */
+			regs->iaoq[num - RI(iaoq[0])] = val | 3;
 			return;
 	case RI(sar):	regs->sar = val;
 			return;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/kernel/syscall.S linux-libre-5.1.21-gnu/arch/parisc/kernel/syscall.S
--- linux-libre-5.1-gnu/arch/parisc/kernel/syscall.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/kernel/syscall.S	2019-07-28 02:28:39.000000000 -0400
@@ -48,7 +48,7 @@ registers).
 	 */
 #define KILL_INSN	break	0,0
 
-	.level          LEVEL
+	.level          PA_ASM_LEVEL
 
 	.text
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/math-emu/cnv_float.h linux-libre-5.1.21-gnu/arch/parisc/math-emu/cnv_float.h
--- linux-libre-5.1-gnu/arch/parisc/math-emu/cnv_float.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/math-emu/cnv_float.h	2019-07-28 02:28:39.000000000 -0400
@@ -60,19 +60,19 @@
     ((exponent < (SGL_P - 1)) ?				\
      (Sall(sgl_value) << (SGL_EXP_LENGTH + 1 + exponent)) : FALSE)
 
-#define Int_isinexact_to_sgl(int_value)	(int_value << 33 - SGL_EXP_LENGTH)
+#define Int_isinexact_to_sgl(int_value)	((int_value << 33 - SGL_EXP_LENGTH) != 0)
 
 #define Sgl_roundnearest_from_int(int_value,sgl_value)			\
     if (int_value & 1<<(SGL_EXP_LENGTH - 2))   /* round bit */		\
-    	if ((int_value << 34 - SGL_EXP_LENGTH) || Slow(sgl_value))	\
+	if (((int_value << 34 - SGL_EXP_LENGTH) != 0) || Slow(sgl_value)) \
 		Sall(sgl_value)++
 
 #define Dint_isinexact_to_sgl(dint_valueA,dint_valueB)		\
-    ((Dintp1(dint_valueA) << 33 - SGL_EXP_LENGTH) || Dintp2(dint_valueB))
+    (((Dintp1(dint_valueA) << 33 - SGL_EXP_LENGTH) != 0) || Dintp2(dint_valueB))
 
 #define Sgl_roundnearest_from_dint(dint_valueA,dint_valueB,sgl_value)	\
     if (Dintp1(dint_valueA) & 1<<(SGL_EXP_LENGTH - 2)) 			\
-    	if ((Dintp1(dint_valueA) << 34 - SGL_EXP_LENGTH) ||		\
+	if (((Dintp1(dint_valueA) << 34 - SGL_EXP_LENGTH) != 0) ||	\
     	Dintp2(dint_valueB) || Slow(sgl_value)) Sall(sgl_value)++
 
 #define Dint_isinexact_to_dbl(dint_value) 	\
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/parisc/mm/init.c linux-libre-5.1.21-gnu/arch/parisc/mm/init.c
--- linux-libre-5.1-gnu/arch/parisc/mm/init.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/parisc/mm/init.c	2019-07-28 02:28:39.000000000 -0400
@@ -495,7 +495,7 @@ static void __init map_pages(unsigned lo
 
 void __init set_kernel_text_rw(int enable_read_write)
 {
-	unsigned long start = (unsigned long) _text;
+	unsigned long start = (unsigned long) __init_begin;
 	unsigned long end   = (unsigned long) &data_start;
 
 	map_pages(start, __pa(start), end-start,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/boot/addnote.c linux-libre-5.1.21-gnu/arch/powerpc/boot/addnote.c
--- linux-libre-5.1-gnu/arch/powerpc/boot/addnote.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/boot/addnote.c	2019-07-28 02:28:39.000000000 -0400
@@ -223,7 +223,11 @@ main(int ac, char **av)
 	PUT_16(E_PHNUM, np + 2);
 
 	/* write back */
-	lseek(fd, (long) 0, SEEK_SET);
+	i = lseek(fd, (long) 0, SEEK_SET);
+	if (i < 0) {
+		perror("lseek");
+		exit(1);
+	}
 	i = write(fd, buf, n);
 	if (i < 0) {
 		perror("write");
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/book3s/64/pgalloc.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/book3s/64/pgalloc.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/book3s/64/pgalloc.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/book3s/64/pgalloc.h	2019-07-28 02:28:39.000000000 -0400
@@ -81,6 +81,9 @@ static inline pgd_t *pgd_alloc(struct mm
 
 	pgd = kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
 			       pgtable_gfp_flags(mm, GFP_KERNEL));
+	if (unlikely(!pgd))
+		return pgd;
+
 	/*
 	 * Don't scan the PGD for pointers, it contains references to PUDs but
 	 * those references are not full pointers and so can't be recognised by
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/book3s/64/pgtable.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/book3s/64/pgtable.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/book3s/64/pgtable.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/book3s/64/pgtable.h	2019-07-28 02:28:39.000000000 -0400
@@ -875,6 +875,23 @@ static inline int pmd_present(pmd_t pmd)
 	return false;
 }
 
+static inline int pmd_is_serializing(pmd_t pmd)
+{
+	/*
+	 * If the pmd is undergoing a split, the _PAGE_PRESENT bit is clear
+	 * and _PAGE_INVALID is set (see pmd_present, pmdp_invalidate).
+	 *
+	 * This condition may also occur when flushing a pmd while flushing
+	 * it (see ptep_modify_prot_start), so callers must ensure this
+	 * case is fine as well.
+	 */
+	if ((pmd_raw(pmd) & cpu_to_be64(_PAGE_PRESENT | _PAGE_INVALID)) ==
+						cpu_to_be64(_PAGE_INVALID))
+		return true;
+
+	return false;
+}
+
 static inline int pmd_bad(pmd_t pmd)
 {
 	if (radix_enabled())
@@ -1090,6 +1107,19 @@ static inline int pmd_protnone(pmd_t pmd
 #define pmd_access_permitted pmd_access_permitted
 static inline bool pmd_access_permitted(pmd_t pmd, bool write)
 {
+	/*
+	 * pmdp_invalidate sets this combination (which is not caught by
+	 * !pte_present() check in pte_access_permitted), to prevent
+	 * lock-free lookups, as part of the serialize_against_pte_lookup()
+	 * synchronisation.
+	 *
+	 * This also catches the case where the PTE's hardware PRESENT bit is
+	 * cleared while TLB is flushed, which is suboptimal but should not
+	 * be frequent.
+	 */
+	if (pmd_is_serializing(pmd))
+		return false;
+
 	return pte_access_permitted(pmd_pte(pmd), write);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/drmem.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/drmem.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/drmem.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/drmem.h	2019-07-28 02:28:39.000000000 -0400
@@ -17,6 +17,9 @@ struct drmem_lmb {
 	u32     drc_index;
 	u32     aa_index;
 	u32     flags;
+#ifdef CONFIG_MEMORY_HOTPLUG
+	int	nid;
+#endif
 };
 
 struct drmem_lmb_info {
@@ -104,4 +107,22 @@ static inline void invalidate_lmb_associ
 	lmb->aa_index = 0xffffffff;
 }
 
+#ifdef CONFIG_MEMORY_HOTPLUG
+static inline void lmb_set_nid(struct drmem_lmb *lmb)
+{
+	lmb->nid = memory_add_physaddr_to_nid(lmb->base_addr);
+}
+static inline void lmb_clear_nid(struct drmem_lmb *lmb)
+{
+	lmb->nid = -1;
+}
+#else
+static inline void lmb_set_nid(struct drmem_lmb *lmb)
+{
+}
+static inline void lmb_clear_nid(struct drmem_lmb *lmb)
+{
+}
+#endif
+
 #endif /* _ASM_POWERPC_LMB_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/kexec.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/kexec.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/kexec.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/kexec.h	2019-07-28 02:28:39.000000000 -0400
@@ -94,6 +94,9 @@ static inline bool kdump_in_progress(voi
 	return crashing_cpu >= 0;
 }
 
+void relocate_new_kernel(unsigned long indirection_page, unsigned long reboot_code_buffer,
+			 unsigned long start_address) __noreturn;
+
 #ifdef CONFIG_KEXEC_FILE
 extern const struct kexec_file_ops kexec_elf64_ops;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/kvm_host.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/kvm_host.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/kvm_host.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/kvm_host.h	2019-07-28 02:28:39.000000000 -0400
@@ -305,6 +305,7 @@ struct kvm_arch {
 #ifdef CONFIG_PPC_BOOK3S_64
 	struct list_head spapr_tce_tables;
 	struct list_head rtas_tokens;
+	struct mutex rtas_token_lock;
 	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
 #endif
 #ifdef CONFIG_KVM_MPIC
@@ -317,6 +318,7 @@ struct kvm_arch {
 #endif
 	struct kvmppc_ops *kvm_ops;
 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+	struct mutex mmu_setup_lock;	/* nests inside vcpu mutexes */
 	u64 l1_ptcr;
 	int max_nested_lpid;
 	struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/mmu_context.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/mmu_context.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/mmu_context.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/mmu_context.h	2019-07-28 02:28:39.000000000 -0400
@@ -237,7 +237,6 @@ extern void arch_exit_mmap(struct mm_str
 #endif
 
 static inline void arch_unmap(struct mm_struct *mm,
-			      struct vm_area_struct *vma,
 			      unsigned long start, unsigned long end)
 {
 	if (start <= mm->context.vdso_base && mm->context.vdso_base < end)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/page.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/page.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/page.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/page.h	2019-07-28 02:28:39.000000000 -0400
@@ -330,6 +330,13 @@ struct vm_area_struct;
 #endif /* __ASSEMBLY__ */
 #include <asm/slice.h>
 
+/*
+ * Allow 30-bit DMA for very limited Broadcom wifi chips on many powerbooks.
+ */
+#ifdef CONFIG_PPC32
+#define ARCH_ZONE_DMA_BITS 30
+#else
 #define ARCH_ZONE_DMA_BITS 31
+#endif
 
 #endif /* _ASM_POWERPC_PAGE_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/pgtable.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/pgtable.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/pgtable.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/pgtable.h	2019-07-28 02:28:39.000000000 -0400
@@ -137,6 +137,20 @@ static inline void pte_frag_set(mm_conte
 }
 #endif
 
+#ifdef CONFIG_PPC64
+#define is_ioremap_addr is_ioremap_addr
+static inline bool is_ioremap_addr(const void *x)
+{
+#ifdef CONFIG_MMU
+	unsigned long addr = (unsigned long)x;
+
+	return addr >= IOREMAP_BASE && addr < IOREMAP_END;
+#else
+	return false;
+#endif
+}
+#endif /* CONFIG_PPC64 */
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_POWERPC_PGTABLE_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/ppc-opcode.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/ppc-opcode.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/ppc-opcode.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/ppc-opcode.h	2019-07-28 02:28:39.000000000 -0400
@@ -342,6 +342,7 @@
 #define PPC_INST_MADDLD			0x10000033
 #define PPC_INST_DIVWU			0x7c000396
 #define PPC_INST_DIVD			0x7c0003d2
+#define PPC_INST_DIVDU			0x7c000392
 #define PPC_INST_RLWINM			0x54000000
 #define PPC_INST_RLWINM_DOT		0x54000001
 #define PPC_INST_RLWIMI			0x50000000
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/include/asm/reg_booke.h linux-libre-5.1.21-gnu/arch/powerpc/include/asm/reg_booke.h
--- linux-libre-5.1-gnu/arch/powerpc/include/asm/reg_booke.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/include/asm/reg_booke.h	2019-07-28 02:28:39.000000000 -0400
@@ -41,7 +41,7 @@
 #if defined(CONFIG_PPC_BOOK3E_64)
 #define MSR_64BIT	MSR_CM
 
-#define MSR_		(MSR_ME | MSR_CE)
+#define MSR_		(MSR_ME | MSR_RI | MSR_CE)
 #define MSR_KERNEL	(MSR_ | MSR_64BIT)
 #define MSR_USER32	(MSR_ | MSR_PR | MSR_EE)
 #define MSR_USER64	(MSR_USER32 | MSR_64BIT)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/exceptions-64s.S linux-libre-5.1.21-gnu/arch/powerpc/kernel/exceptions-64s.S
--- linux-libre-5.1-gnu/arch/powerpc/kernel/exceptions-64s.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/exceptions-64s.S	2019-07-28 02:28:39.000000000 -0400
@@ -1738,7 +1738,7 @@ handle_page_fault:
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	do_page_fault
 	cmpdi	r3,0
-	beq+	12f
+	beq+	ret_from_except_lite
 	bl	save_nvgprs
 	mr	r5,r3
 	addi	r3,r1,STACK_FRAME_OVERHEAD
@@ -1753,7 +1753,12 @@ handle_dabr_fault:
 	ld      r5,_DSISR(r1)
 	addi    r3,r1,STACK_FRAME_OVERHEAD
 	bl      do_break
-12:	b       ret_from_except_lite
+	/*
+	 * do_break() may have changed the NV GPRS while handling a breakpoint.
+	 * If so, we need to restore them with their updated values. Don't use
+	 * ret_from_except_lite here.
+	 */
+	b       ret_from_except
 
 
 #ifdef CONFIG_PPC_BOOK3S_64
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/head_64.S linux-libre-5.1.21-gnu/arch/powerpc/kernel/head_64.S
--- linux-libre-5.1-gnu/arch/powerpc/kernel/head_64.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/head_64.S	2019-07-28 02:28:39.000000000 -0400
@@ -968,7 +968,9 @@ start_here_multiplatform:
 
 	/* Restore parameters passed from prom_init/kexec */
 	mr	r3,r31
-	bl	early_setup		/* also sets r13 and SPRG_PACA */
+	LOAD_REG_ADDR(r12, DOTSYM(early_setup))
+	mtctr	r12
+	bctrl		/* also sets r13 and SPRG_PACA */
 
 	LOAD_REG_ADDR(r3, start_here_common)
 	ld	r4,PACAKMSR(r13)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/idle_book3s.S linux-libre-5.1.21-gnu/arch/powerpc/kernel/idle_book3s.S
--- linux-libre-5.1-gnu/arch/powerpc/kernel/idle_book3s.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/idle_book3s.S	2019-07-28 02:28:39.000000000 -0400
@@ -170,6 +170,9 @@ core_idle_lock_held:
 	bne-	core_idle_lock_held
 	blr
 
+/* Reuse an unused pt_regs slot for IAMR */
+#define PNV_POWERSAVE_IAMR	_DAR
+
 /*
  * Pass requested state in r3:
  *	r3 - PNV_THREAD_NAP/SLEEP/WINKLE in POWER8
@@ -200,6 +203,12 @@ pnv_powersave_common:
 	/* Continue saving state */
 	SAVE_GPR(2, r1)
 	SAVE_NVGPRS(r1)
+
+BEGIN_FTR_SECTION
+	mfspr	r5, SPRN_IAMR
+	std	r5, PNV_POWERSAVE_IAMR(r1)
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+
 	mfcr	r5
 	std	r5,_CCR(r1)
 	std	r1,PACAR1(r13)
@@ -924,6 +933,17 @@ BEGIN_FTR_SECTION
 END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
 	REST_NVGPRS(r1)
 	REST_GPR(2, r1)
+
+BEGIN_FTR_SECTION
+	/* IAMR was saved in pnv_powersave_common() */
+	ld	r5, PNV_POWERSAVE_IAMR(r1)
+	mtspr	SPRN_IAMR, r5
+	/*
+	 * We don't need an isync here because the upcoming mtmsrd is
+	 * execution synchronizing.
+	 */
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+
 	ld	r4,PACAKMSR(r13)
 	ld	r5,_LINK(r1)
 	ld	r6,_CCR(r1)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/kexec_elf_64.c linux-libre-5.1.21-gnu/arch/powerpc/kernel/kexec_elf_64.c
--- linux-libre-5.1-gnu/arch/powerpc/kernel/kexec_elf_64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/kexec_elf_64.c	2019-07-28 02:28:39.000000000 -0400
@@ -547,6 +547,7 @@ static int elf_exec_load(struct kimage *
 		kbuf.memsz = phdr->p_memsz;
 		kbuf.buf_align = phdr->p_align;
 		kbuf.buf_min = phdr->p_paddr + base;
+		kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
 		ret = kexec_add_buffer(&kbuf);
 		if (ret)
 			goto out;
@@ -581,7 +582,8 @@ static void *elf64_load(struct kimage *i
 	struct kexec_buf kbuf = { .image = image, .buf_min = 0,
 				  .buf_max = ppc64_rma_size };
 	struct kexec_buf pbuf = { .image = image, .buf_min = 0,
-				  .buf_max = ppc64_rma_size, .top_down = true };
+				  .buf_max = ppc64_rma_size, .top_down = true,
+				  .mem = KEXEC_BUF_MEM_UNKNOWN };
 
 	ret = build_elf_exec_info(kernel_buf, kernel_len, &ehdr, &elf_info);
 	if (ret)
@@ -606,6 +608,7 @@ static void *elf64_load(struct kimage *i
 		kbuf.bufsz = kbuf.memsz = initrd_len;
 		kbuf.buf_align = PAGE_SIZE;
 		kbuf.top_down = false;
+		kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
 		ret = kexec_add_buffer(&kbuf);
 		if (ret)
 			goto out;
@@ -638,6 +641,7 @@ static void *elf64_load(struct kimage *i
 	kbuf.bufsz = kbuf.memsz = fdt_size;
 	kbuf.buf_align = PAGE_SIZE;
 	kbuf.top_down = true;
+	kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
 	ret = kexec_add_buffer(&kbuf);
 	if (ret)
 		goto out;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/machine_kexec_32.c linux-libre-5.1.21-gnu/arch/powerpc/kernel/machine_kexec_32.c
--- linux-libre-5.1-gnu/arch/powerpc/kernel/machine_kexec_32.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/machine_kexec_32.c	2019-07-28 02:28:39.000000000 -0400
@@ -30,7 +30,6 @@ typedef void (*relocate_new_kernel_t)(
  */
 void default_machine_kexec(struct kimage *image)
 {
-	extern const unsigned char relocate_new_kernel[];
 	extern const unsigned int relocate_new_kernel_size;
 	unsigned long page_list;
 	unsigned long reboot_code_buffer, reboot_code_buffer_phys;
@@ -58,6 +57,9 @@ void default_machine_kexec(struct kimage
 				reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE);
 	printk(KERN_INFO "Bye!\n");
 
+	if (!IS_ENABLED(CONFIG_FSL_BOOKE) && !IS_ENABLED(CONFIG_44x))
+		relocate_new_kernel(page_list, reboot_code_buffer_phys, image->start);
+
 	/* now call it */
 	rnk = (relocate_new_kernel_t) reboot_code_buffer;
 	(*rnk)(page_list, reboot_code_buffer_phys, image->start);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/security.c linux-libre-5.1.21-gnu/arch/powerpc/kernel/security.c
--- linux-libre-5.1-gnu/arch/powerpc/kernel/security.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/security.c	2019-07-28 02:28:39.000000000 -0400
@@ -57,7 +57,7 @@ void setup_barrier_nospec(void)
 	enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) &&
 		 security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR);
 
-	if (!no_nospec)
+	if (!no_nospec && !cpu_mitigations_off())
 		enable_barrier_nospec(enable);
 }
 
@@ -116,7 +116,7 @@ static int __init handle_nospectre_v2(ch
 early_param("nospectre_v2", handle_nospectre_v2);
 void setup_spectre_v2(void)
 {
-	if (no_spectrev2)
+	if (no_spectrev2 || cpu_mitigations_off())
 		do_btb_flush_fixups();
 	else
 		btb_flush_enabled = true;
@@ -300,7 +300,7 @@ void setup_stf_barrier(void)
 
 	stf_enabled_flush_types = type;
 
-	if (!no_stf_barrier)
+	if (!no_stf_barrier && !cpu_mitigations_off())
 		stf_barrier_enable(enable);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/setup_64.c linux-libre-5.1.21-gnu/arch/powerpc/kernel/setup_64.c
--- linux-libre-5.1-gnu/arch/powerpc/kernel/setup_64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/setup_64.c	2019-07-28 02:28:39.000000000 -0400
@@ -932,7 +932,7 @@ void setup_rfi_flush(enum l1d_flush_type
 
 	enabled_flush_types = types;
 
-	if (!no_rfi_flush)
+	if (!no_rfi_flush && !cpu_mitigations_off())
 		rfi_flush_enable(enable);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/swsusp_32.S linux-libre-5.1.21-gnu/arch/powerpc/kernel/swsusp_32.S
--- linux-libre-5.1-gnu/arch/powerpc/kernel/swsusp_32.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/swsusp_32.S	2019-07-28 02:28:39.000000000 -0400
@@ -25,11 +25,19 @@
 #define SL_IBAT2	0x48
 #define SL_DBAT3	0x50
 #define SL_IBAT3	0x58
-#define SL_TB		0x60
-#define SL_R2		0x68
-#define SL_CR		0x6c
-#define SL_LR		0x70
-#define SL_R12		0x74	/* r12 to r31 */
+#define SL_DBAT4	0x60
+#define SL_IBAT4	0x68
+#define SL_DBAT5	0x70
+#define SL_IBAT5	0x78
+#define SL_DBAT6	0x80
+#define SL_IBAT6	0x88
+#define SL_DBAT7	0x90
+#define SL_IBAT7	0x98
+#define SL_TB		0xa0
+#define SL_R2		0xa8
+#define SL_CR		0xac
+#define SL_LR		0xb0
+#define SL_R12		0xb4	/* r12 to r31 */
 #define SL_SIZE		(SL_R12 + 80)
 
 	.section .data
@@ -114,6 +122,41 @@ _GLOBAL(swsusp_arch_suspend)
 	mfibatl	r4,3
 	stw	r4,SL_IBAT3+4(r11)
 
+BEGIN_MMU_FTR_SECTION
+	mfspr	r4,SPRN_DBAT4U
+	stw	r4,SL_DBAT4(r11)
+	mfspr	r4,SPRN_DBAT4L
+	stw	r4,SL_DBAT4+4(r11)
+	mfspr	r4,SPRN_DBAT5U
+	stw	r4,SL_DBAT5(r11)
+	mfspr	r4,SPRN_DBAT5L
+	stw	r4,SL_DBAT5+4(r11)
+	mfspr	r4,SPRN_DBAT6U
+	stw	r4,SL_DBAT6(r11)
+	mfspr	r4,SPRN_DBAT6L
+	stw	r4,SL_DBAT6+4(r11)
+	mfspr	r4,SPRN_DBAT7U
+	stw	r4,SL_DBAT7(r11)
+	mfspr	r4,SPRN_DBAT7L
+	stw	r4,SL_DBAT7+4(r11)
+	mfspr	r4,SPRN_IBAT4U
+	stw	r4,SL_IBAT4(r11)
+	mfspr	r4,SPRN_IBAT4L
+	stw	r4,SL_IBAT4+4(r11)
+	mfspr	r4,SPRN_IBAT5U
+	stw	r4,SL_IBAT5(r11)
+	mfspr	r4,SPRN_IBAT5L
+	stw	r4,SL_IBAT5+4(r11)
+	mfspr	r4,SPRN_IBAT6U
+	stw	r4,SL_IBAT6(r11)
+	mfspr	r4,SPRN_IBAT6L
+	stw	r4,SL_IBAT6+4(r11)
+	mfspr	r4,SPRN_IBAT7U
+	stw	r4,SL_IBAT7(r11)
+	mfspr	r4,SPRN_IBAT7L
+	stw	r4,SL_IBAT7+4(r11)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
+
 #if  0
 	/* Backup various CPU config stuffs */
 	bl	__save_cpu_setup
@@ -279,27 +322,41 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	mtibatu	3,r4
 	lwz	r4,SL_IBAT3+4(r11)
 	mtibatl	3,r4
-#endif
-
 BEGIN_MMU_FTR_SECTION
-	li	r4,0
+	lwz	r4,SL_DBAT4(r11)
 	mtspr	SPRN_DBAT4U,r4
+	lwz	r4,SL_DBAT4+4(r11)
 	mtspr	SPRN_DBAT4L,r4
+	lwz	r4,SL_DBAT5(r11)
 	mtspr	SPRN_DBAT5U,r4
+	lwz	r4,SL_DBAT5+4(r11)
 	mtspr	SPRN_DBAT5L,r4
+	lwz	r4,SL_DBAT6(r11)
 	mtspr	SPRN_DBAT6U,r4
+	lwz	r4,SL_DBAT6+4(r11)
 	mtspr	SPRN_DBAT6L,r4
+	lwz	r4,SL_DBAT7(r11)
 	mtspr	SPRN_DBAT7U,r4
+	lwz	r4,SL_DBAT7+4(r11)
 	mtspr	SPRN_DBAT7L,r4
+	lwz	r4,SL_IBAT4(r11)
 	mtspr	SPRN_IBAT4U,r4
+	lwz	r4,SL_IBAT4+4(r11)
 	mtspr	SPRN_IBAT4L,r4
+	lwz	r4,SL_IBAT5(r11)
 	mtspr	SPRN_IBAT5U,r4
+	lwz	r4,SL_IBAT5+4(r11)
 	mtspr	SPRN_IBAT5L,r4
+	lwz	r4,SL_IBAT6(r11)
 	mtspr	SPRN_IBAT6U,r4
+	lwz	r4,SL_IBAT6+4(r11)
 	mtspr	SPRN_IBAT6L,r4
+	lwz	r4,SL_IBAT7(r11)
 	mtspr	SPRN_IBAT7U,r4
+	lwz	r4,SL_IBAT7+4(r11)
 	mtspr	SPRN_IBAT7L,r4
 END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
+#endif
 
 	/* Flush all TLBs */
 	lis	r4,0x1000
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kernel/watchdog.c linux-libre-5.1.21-gnu/arch/powerpc/kernel/watchdog.c
--- linux-libre-5.1-gnu/arch/powerpc/kernel/watchdog.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kernel/watchdog.c	2019-07-28 02:28:39.000000000 -0400
@@ -77,7 +77,7 @@ static u64 wd_smp_panic_timeout_tb __rea
 
 static u64 wd_timer_period_ms __read_mostly;  /* interval between heartbeat */
 
-static DEFINE_PER_CPU(struct timer_list, wd_timer);
+static DEFINE_PER_CPU(struct hrtimer, wd_hrtimer);
 static DEFINE_PER_CPU(u64, wd_timer_tb);
 
 /* SMP checker bits */
@@ -293,21 +293,21 @@ out:
 	nmi_exit();
 }
 
-static void wd_timer_reset(unsigned int cpu, struct timer_list *t)
-{
-	t->expires = jiffies + msecs_to_jiffies(wd_timer_period_ms);
-	if (wd_timer_period_ms > 1000)
-		t->expires = __round_jiffies_up(t->expires, cpu);
-	add_timer_on(t, cpu);
-}
-
-static void wd_timer_fn(struct timer_list *t)
+static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
 {
 	int cpu = smp_processor_id();
 
+	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
+		return HRTIMER_NORESTART;
+
+	if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
+		return HRTIMER_NORESTART;
+
 	watchdog_timer_interrupt(cpu);
 
-	wd_timer_reset(cpu, t);
+	hrtimer_forward_now(hrtimer, ms_to_ktime(wd_timer_period_ms));
+
+	return HRTIMER_RESTART;
 }
 
 void arch_touch_nmi_watchdog(void)
@@ -323,37 +323,22 @@ void arch_touch_nmi_watchdog(void)
 }
 EXPORT_SYMBOL(arch_touch_nmi_watchdog);
 
-static void start_watchdog_timer_on(unsigned int cpu)
-{
-	struct timer_list *t = per_cpu_ptr(&wd_timer, cpu);
-
-	per_cpu(wd_timer_tb, cpu) = get_tb();
-
-	timer_setup(t, wd_timer_fn, TIMER_PINNED);
-	wd_timer_reset(cpu, t);
-}
-
-static void stop_watchdog_timer_on(unsigned int cpu)
-{
-	struct timer_list *t = per_cpu_ptr(&wd_timer, cpu);
-
-	del_timer_sync(t);
-}
-
-static int start_wd_on_cpu(unsigned int cpu)
+static void start_watchdog(void *arg)
 {
+	struct hrtimer *hrtimer = this_cpu_ptr(&wd_hrtimer);
+	int cpu = smp_processor_id();
 	unsigned long flags;
 
 	if (cpumask_test_cpu(cpu, &wd_cpus_enabled)) {
 		WARN_ON(1);
-		return 0;
+		return;
 	}
 
 	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
-		return 0;
+		return;
 
 	if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
-		return 0;
+		return;
 
 	wd_smp_lock(&flags);
 	cpumask_set_cpu(cpu, &wd_cpus_enabled);
@@ -363,27 +348,40 @@ static int start_wd_on_cpu(unsigned int
 	}
 	wd_smp_unlock(&flags);
 
-	start_watchdog_timer_on(cpu);
+	*this_cpu_ptr(&wd_timer_tb) = get_tb();
 
-	return 0;
+	hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	hrtimer->function = watchdog_timer_fn;
+	hrtimer_start(hrtimer, ms_to_ktime(wd_timer_period_ms),
+		      HRTIMER_MODE_REL_PINNED);
 }
 
-static int stop_wd_on_cpu(unsigned int cpu)
+static int start_watchdog_on_cpu(unsigned int cpu)
+{
+	return smp_call_function_single(cpu, start_watchdog, NULL, true);
+}
+
+static void stop_watchdog(void *arg)
 {
+	struct hrtimer *hrtimer = this_cpu_ptr(&wd_hrtimer);
+	int cpu = smp_processor_id();
 	unsigned long flags;
 
 	if (!cpumask_test_cpu(cpu, &wd_cpus_enabled))
-		return 0; /* Can happen in CPU unplug case */
+		return; /* Can happen in CPU unplug case */
 
-	stop_watchdog_timer_on(cpu);
+	hrtimer_cancel(hrtimer);
 
 	wd_smp_lock(&flags);
 	cpumask_clear_cpu(cpu, &wd_cpus_enabled);
 	wd_smp_unlock(&flags);
 
 	wd_smp_clear_cpu_pending(cpu, get_tb());
+}
 
-	return 0;
+static int stop_watchdog_on_cpu(unsigned int cpu)
+{
+	return smp_call_function_single(cpu, stop_watchdog, NULL, true);
 }
 
 static void watchdog_calc_timeouts(void)
@@ -402,7 +400,7 @@ void watchdog_nmi_stop(void)
 	int cpu;
 
 	for_each_cpu(cpu, &wd_cpus_enabled)
-		stop_wd_on_cpu(cpu);
+		stop_watchdog_on_cpu(cpu);
 }
 
 void watchdog_nmi_start(void)
@@ -411,7 +409,7 @@ void watchdog_nmi_start(void)
 
 	watchdog_calc_timeouts();
 	for_each_cpu_and(cpu, cpu_online_mask, &watchdog_cpumask)
-		start_wd_on_cpu(cpu);
+		start_watchdog_on_cpu(cpu);
 }
 
 /*
@@ -423,7 +421,8 @@ int __init watchdog_nmi_probe(void)
 
 	err = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
 					"powerpc/watchdog:online",
-					start_wd_on_cpu, stop_wd_on_cpu);
+					start_watchdog_on_cpu,
+					stop_watchdog_on_cpu);
 	if (err < 0) {
 		pr_warn("could not be initialized");
 		return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_64_mmu_hv.c linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_64_mmu_hv.c
--- linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_64_mmu_hv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_64_mmu_hv.c	2019-07-28 02:28:39.000000000 -0400
@@ -63,7 +63,7 @@ struct kvm_resize_hpt {
 	struct work_struct work;
 	u32 order;
 
-	/* These fields protected by kvm->lock */
+	/* These fields protected by kvm->arch.mmu_setup_lock */
 
 	/* Possible values and their usage:
 	 *  <0     an error occurred during allocation,
@@ -73,7 +73,7 @@ struct kvm_resize_hpt {
 	int error;
 
 	/* Private to the work thread, until error != -EBUSY,
-	 * then protected by kvm->lock.
+	 * then protected by kvm->arch.mmu_setup_lock.
 	 */
 	struct kvm_hpt_info hpt;
 };
@@ -139,7 +139,7 @@ long kvmppc_alloc_reset_hpt(struct kvm *
 	long err = -EBUSY;
 	struct kvm_hpt_info info;
 
-	mutex_lock(&kvm->lock);
+	mutex_lock(&kvm->arch.mmu_setup_lock);
 	if (kvm->arch.mmu_ready) {
 		kvm->arch.mmu_ready = 0;
 		/* order mmu_ready vs. vcpus_running */
@@ -183,7 +183,7 @@ out:
 		/* Ensure that each vcpu will flush its TLB on next entry. */
 		cpumask_setall(&kvm->arch.need_tlb_flush);
 
-	mutex_unlock(&kvm->lock);
+	mutex_unlock(&kvm->arch.mmu_setup_lock);
 	return err;
 }
 
@@ -1447,7 +1447,7 @@ static void resize_hpt_pivot(struct kvm_
 
 static void resize_hpt_release(struct kvm *kvm, struct kvm_resize_hpt *resize)
 {
-	if (WARN_ON(!mutex_is_locked(&kvm->lock)))
+	if (WARN_ON(!mutex_is_locked(&kvm->arch.mmu_setup_lock)))
 		return;
 
 	if (!resize)
@@ -1474,14 +1474,14 @@ static void resize_hpt_prepare_work(stru
 	if (WARN_ON(resize->error != -EBUSY))
 		return;
 
-	mutex_lock(&kvm->lock);
+	mutex_lock(&kvm->arch.mmu_setup_lock);
 
 	/* Request is still current? */
 	if (kvm->arch.resize_hpt == resize) {
 		/* We may request large allocations here:
-		 * do not sleep with kvm->lock held for a while.
+		 * do not sleep with kvm->arch.mmu_setup_lock held for a while.
 		 */
-		mutex_unlock(&kvm->lock);
+		mutex_unlock(&kvm->arch.mmu_setup_lock);
 
 		resize_hpt_debug(resize, "resize_hpt_prepare_work(): order = %d\n",
 				 resize->order);
@@ -1494,9 +1494,9 @@ static void resize_hpt_prepare_work(stru
 		if (WARN_ON(err == -EBUSY))
 			err = -EINPROGRESS;
 
-		mutex_lock(&kvm->lock);
+		mutex_lock(&kvm->arch.mmu_setup_lock);
 		/* It is possible that kvm->arch.resize_hpt != resize
-		 * after we grab kvm->lock again.
+		 * after we grab kvm->arch.mmu_setup_lock again.
 		 */
 	}
 
@@ -1505,7 +1505,7 @@ static void resize_hpt_prepare_work(stru
 	if (kvm->arch.resize_hpt != resize)
 		resize_hpt_release(kvm, resize);
 
-	mutex_unlock(&kvm->lock);
+	mutex_unlock(&kvm->arch.mmu_setup_lock);
 }
 
 long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
@@ -1522,7 +1522,7 @@ long kvm_vm_ioctl_resize_hpt_prepare(str
 	if (shift && ((shift < 18) || (shift > 46)))
 		return -EINVAL;
 
-	mutex_lock(&kvm->lock);
+	mutex_lock(&kvm->arch.mmu_setup_lock);
 
 	resize = kvm->arch.resize_hpt;
 
@@ -1565,7 +1565,7 @@ long kvm_vm_ioctl_resize_hpt_prepare(str
 	ret = 100; /* estimated time in ms */
 
 out:
-	mutex_unlock(&kvm->lock);
+	mutex_unlock(&kvm->arch.mmu_setup_lock);
 	return ret;
 }
 
@@ -1588,7 +1588,7 @@ long kvm_vm_ioctl_resize_hpt_commit(stru
 	if (shift && ((shift < 18) || (shift > 46)))
 		return -EINVAL;
 
-	mutex_lock(&kvm->lock);
+	mutex_lock(&kvm->arch.mmu_setup_lock);
 
 	resize = kvm->arch.resize_hpt;
 
@@ -1625,7 +1625,7 @@ out:
 	smp_mb();
 out_no_hpt:
 	resize_hpt_release(kvm, resize);
-	mutex_unlock(&kvm->lock);
+	mutex_unlock(&kvm->arch.mmu_setup_lock);
 	return ret;
 }
 
@@ -1868,7 +1868,7 @@ static ssize_t kvm_htab_write(struct fil
 		return -EINVAL;
 
 	/* lock out vcpus from running while we're doing this */
-	mutex_lock(&kvm->lock);
+	mutex_lock(&kvm->arch.mmu_setup_lock);
 	mmu_ready = kvm->arch.mmu_ready;
 	if (mmu_ready) {
 		kvm->arch.mmu_ready = 0;	/* temporarily */
@@ -1876,7 +1876,7 @@ static ssize_t kvm_htab_write(struct fil
 		smp_mb();
 		if (atomic_read(&kvm->arch.vcpus_running)) {
 			kvm->arch.mmu_ready = 1;
-			mutex_unlock(&kvm->lock);
+			mutex_unlock(&kvm->arch.mmu_setup_lock);
 			return -EBUSY;
 		}
 	}
@@ -1963,7 +1963,7 @@ static ssize_t kvm_htab_write(struct fil
 	/* Order HPTE updates vs. mmu_ready */
 	smp_wmb();
 	kvm->arch.mmu_ready = mmu_ready;
-	mutex_unlock(&kvm->lock);
+	mutex_unlock(&kvm->arch.mmu_setup_lock);
 
 	if (err)
 		return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kvm/book3s.c linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s.c
--- linux-libre-5.1-gnu/arch/powerpc/kvm/book3s.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s.c	2019-07-28 02:28:39.000000000 -0400
@@ -878,6 +878,7 @@ int kvmppc_core_init_vm(struct kvm *kvm)
 #ifdef CONFIG_PPC64
 	INIT_LIST_HEAD_RCU(&kvm->arch.spapr_tce_tables);
 	INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
+	mutex_init(&kvm->arch.rtas_token_lock);
 #endif
 
 	return kvm->arch.kvm_ops->init_vm(kvm);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_hv.c linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_hv.c
--- linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_hv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_hv.c	2019-07-28 02:28:39.000000000 -0400
@@ -445,12 +445,7 @@ static void kvmppc_dump_regs(struct kvm_
 
 static struct kvm_vcpu *kvmppc_find_vcpu(struct kvm *kvm, int id)
 {
-	struct kvm_vcpu *ret;
-
-	mutex_lock(&kvm->lock);
-	ret = kvm_get_vcpu_by_id(kvm, id);
-	mutex_unlock(&kvm->lock);
-	return ret;
+	return kvm_get_vcpu_by_id(kvm, id);
 }
 
 static void init_vpa(struct kvm_vcpu *vcpu, struct lppaca *vpa)
@@ -1502,7 +1497,6 @@ static void kvmppc_set_lpcr(struct kvm_v
 	struct kvmppc_vcore *vc = vcpu->arch.vcore;
 	u64 mask;
 
-	mutex_lock(&kvm->lock);
 	spin_lock(&vc->lock);
 	/*
 	 * If ILE (interrupt little-endian) has changed, update the
@@ -1542,7 +1536,6 @@ static void kvmppc_set_lpcr(struct kvm_v
 		mask &= 0xFFFFFFFF;
 	vc->lpcr = (vc->lpcr & ~mask) | (new_lpcr & mask);
 	spin_unlock(&vc->lock);
-	mutex_unlock(&kvm->lock);
 }
 
 static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
@@ -2257,11 +2250,17 @@ static struct kvm_vcpu *kvmppc_core_vcpu
 			pr_devel("KVM: collision on id %u", id);
 			vcore = NULL;
 		} else if (!vcore) {
+			/*
+			 * Take mmu_setup_lock for mutual exclusion
+			 * with kvmppc_update_lpcr().
+			 */
 			err = -ENOMEM;
 			vcore = kvmppc_vcore_create(kvm,
 					id & ~(kvm->arch.smt_mode - 1));
+			mutex_lock(&kvm->arch.mmu_setup_lock);
 			kvm->arch.vcores[core] = vcore;
 			kvm->arch.online_vcores++;
+			mutex_unlock(&kvm->arch.mmu_setup_lock);
 		}
 	}
 	mutex_unlock(&kvm->lock);
@@ -3569,6 +3568,8 @@ int kvmhv_p9_guest_entry(struct kvm_vcpu
 
 	vcpu->arch.slb_max = 0;
 	dec = mfspr(SPRN_DEC);
+	if (!(lpcr & LPCR_LD)) /* Sign extend if not using large decrementer */
+		dec = (s32) dec;
 	tb = mftb();
 	vcpu->arch.dec_expires = dec + tb;
 	vcpu->cpu = -1;
@@ -3624,6 +3625,7 @@ int kvmhv_p9_guest_entry(struct kvm_vcpu
 	vc->in_guest = 0;
 
 	mtspr(SPRN_DEC, local_paca->kvm_hstate.dec_expires - mftb());
+	mtspr(SPRN_SPRG_VDSO_WRITE, local_paca->sprg_vdso);
 
 	kvmhv_load_host_pmu();
 
@@ -3820,7 +3822,7 @@ static int kvmhv_setup_mmu(struct kvm_vc
 	int r = 0;
 	struct kvm *kvm = vcpu->kvm;
 
-	mutex_lock(&kvm->lock);
+	mutex_lock(&kvm->arch.mmu_setup_lock);
 	if (!kvm->arch.mmu_ready) {
 		if (!kvm_is_radix(kvm))
 			r = kvmppc_hv_setup_htab_rma(vcpu);
@@ -3830,7 +3832,7 @@ static int kvmhv_setup_mmu(struct kvm_vc
 			kvm->arch.mmu_ready = 1;
 		}
 	}
-	mutex_unlock(&kvm->lock);
+	mutex_unlock(&kvm->arch.mmu_setup_lock);
 	return r;
 }
 
@@ -4048,16 +4050,20 @@ int kvmhv_run_single_vcpu(struct kvm_run
 	if (cpu_has_feature(CPU_FTR_HVMODE))
 		kvmppc_radix_check_need_tlb_flush(kvm, pcpu, nested);
 
-	trace_hardirqs_on();
 	guest_enter_irqoff();
 
 	srcu_idx = srcu_read_lock(&kvm->srcu);
 
 	this_cpu_disable_ftrace();
 
+	/* Tell lockdep that we're about to enable interrupts */
+	trace_hardirqs_on();
+
 	trap = kvmhv_p9_guest_entry(vcpu, time_limit, lpcr);
 	vcpu->arch.trap = trap;
 
+	trace_hardirqs_off();
+
 	this_cpu_enable_ftrace();
 
 	srcu_read_unlock(&kvm->srcu, srcu_idx);
@@ -4067,7 +4073,6 @@ int kvmhv_run_single_vcpu(struct kvm_run
 		isync();
 	}
 
-	trace_hardirqs_off();
 	set_irq_happened(trap);
 
 	kvmppc_set_host_core(pcpu);
@@ -4079,8 +4084,15 @@ int kvmhv_run_single_vcpu(struct kvm_run
 
 	preempt_enable();
 
-	/* cancel pending decrementer exception if DEC is now positive */
-	if (get_tb() < vcpu->arch.dec_expires && kvmppc_core_pending_dec(vcpu))
+	/*
+	 * cancel pending decrementer exception if DEC is now positive, or if
+	 * entering a nested guest in which case the decrementer is now owned
+	 * by L2 and the L1 decrementer is provided in hdec_expires
+	 */
+	if (kvmppc_core_pending_dec(vcpu) &&
+			((get_tb() < vcpu->arch.dec_expires) ||
+			 (trap == BOOK3S_INTERRUPT_SYSCALL &&
+			  kvmppc_get_gpr(vcpu, 3) == H_ENTER_NESTED)))
 		kvmppc_core_dequeue_dec(vcpu);
 
 	trace_kvm_guest_exit(vcpu);
@@ -4435,7 +4447,8 @@ static void kvmppc_core_commit_memory_re
 
 /*
  * Update LPCR values in kvm->arch and in vcores.
- * Caller must hold kvm->lock.
+ * Caller must hold kvm->arch.mmu_setup_lock (for mutual exclusion
+ * of kvm->arch.lpcr update).
  */
 void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, unsigned long mask)
 {
@@ -4487,7 +4500,7 @@ void kvmppc_setup_partition_table(struct
 
 /*
  * Set up HPT (hashed page table) and RMA (real-mode area).
- * Must be called with kvm->lock held.
+ * Must be called with kvm->arch.mmu_setup_lock held.
  */
 static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
 {
@@ -4575,7 +4588,10 @@ static int kvmppc_hv_setup_htab_rma(stru
 	goto out_srcu;
 }
 
-/* Must be called with kvm->lock held and mmu_ready = 0 and no vcpus running */
+/*
+ * Must be called with kvm->arch.mmu_setup_lock held and
+ * mmu_ready = 0 and no vcpus running.
+ */
 int kvmppc_switch_mmu_to_hpt(struct kvm *kvm)
 {
 	if (nesting_enabled(kvm))
@@ -4592,7 +4608,10 @@ int kvmppc_switch_mmu_to_hpt(struct kvm
 	return 0;
 }
 
-/* Must be called with kvm->lock held and mmu_ready = 0 and no vcpus running */
+/*
+ * Must be called with kvm->arch.mmu_setup_lock held and
+ * mmu_ready = 0 and no vcpus running.
+ */
 int kvmppc_switch_mmu_to_radix(struct kvm *kvm)
 {
 	int err;
@@ -4697,6 +4716,8 @@ static int kvmppc_core_init_vm_hv(struct
 	char buf[32];
 	int ret;
 
+	mutex_init(&kvm->arch.mmu_setup_lock);
+
 	/* Allocate the guest's logical partition ID */
 
 	lpid = kvmppc_alloc_lpid();
@@ -5222,7 +5243,7 @@ static int kvmhv_configure_mmu(struct kv
 	if (kvmhv_on_pseries() && !radix)
 		return -EINVAL;
 
-	mutex_lock(&kvm->lock);
+	mutex_lock(&kvm->arch.mmu_setup_lock);
 	if (radix != kvm_is_radix(kvm)) {
 		if (kvm->arch.mmu_ready) {
 			kvm->arch.mmu_ready = 0;
@@ -5250,7 +5271,7 @@ static int kvmhv_configure_mmu(struct kv
 	err = 0;
 
  out_unlock:
-	mutex_unlock(&kvm->lock);
+	mutex_unlock(&kvm->arch.mmu_setup_lock);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_hv_tm.c linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_hv_tm.c
--- linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_hv_tm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_hv_tm.c	2019-07-28 02:28:39.000000000 -0400
@@ -131,7 +131,7 @@ int kvmhv_p9_tm_emulation(struct kvm_vcp
 		}
 		/* Set CR0 to indicate previous transactional state */
 		vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & 0x0fffffff) |
-			(((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 28);
+			(((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 29);
 		/* L=1 => tresume, L=0 => tsuspend */
 		if (instr & (1 << 21)) {
 			if (MSR_TM_SUSPENDED(msr))
@@ -175,7 +175,7 @@ int kvmhv_p9_tm_emulation(struct kvm_vcp
 
 		/* Set CR0 to indicate previous transactional state */
 		vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & 0x0fffffff) |
-			(((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 28);
+			(((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 29);
 		vcpu->arch.shregs.msr &= ~MSR_TS_MASK;
 		return RESUME_GUEST;
 
@@ -205,7 +205,7 @@ int kvmhv_p9_tm_emulation(struct kvm_vcp
 
 		/* Set CR0 to indicate previous transactional state */
 		vcpu->arch.regs.ccr = (vcpu->arch.regs.ccr & 0x0fffffff) |
-			(((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 28);
+			(((msr & MSR_TS_MASK) >> MSR_TS_S_LG) << 29);
 		vcpu->arch.shregs.msr = msr | MSR_TS_S;
 		return RESUME_GUEST;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_rtas.c linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_rtas.c
--- linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_rtas.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_rtas.c	2019-07-28 02:28:39.000000000 -0400
@@ -146,7 +146,7 @@ static int rtas_token_undefine(struct kv
 {
 	struct rtas_token_definition *d, *tmp;
 
-	lockdep_assert_held(&kvm->lock);
+	lockdep_assert_held(&kvm->arch.rtas_token_lock);
 
 	list_for_each_entry_safe(d, tmp, &kvm->arch.rtas_tokens, list) {
 		if (rtas_name_matches(d->handler->name, name)) {
@@ -167,7 +167,7 @@ static int rtas_token_define(struct kvm
 	bool found;
 	int i;
 
-	lockdep_assert_held(&kvm->lock);
+	lockdep_assert_held(&kvm->arch.rtas_token_lock);
 
 	list_for_each_entry(d, &kvm->arch.rtas_tokens, list) {
 		if (d->token == token)
@@ -206,14 +206,14 @@ int kvm_vm_ioctl_rtas_define_token(struc
 	if (copy_from_user(&args, argp, sizeof(args)))
 		return -EFAULT;
 
-	mutex_lock(&kvm->lock);
+	mutex_lock(&kvm->arch.rtas_token_lock);
 
 	if (args.token)
 		rc = rtas_token_define(kvm, args.name, args.token);
 	else
 		rc = rtas_token_undefine(kvm, args.name);
 
-	mutex_unlock(&kvm->lock);
+	mutex_unlock(&kvm->arch.rtas_token_lock);
 
 	return rc;
 }
@@ -245,7 +245,7 @@ int kvmppc_rtas_hcall(struct kvm_vcpu *v
 	orig_rets = args.rets;
 	args.rets = &args.args[be32_to_cpu(args.nargs)];
 
-	mutex_lock(&vcpu->kvm->lock);
+	mutex_lock(&vcpu->kvm->arch.rtas_token_lock);
 
 	rc = -ENOENT;
 	list_for_each_entry(d, &vcpu->kvm->arch.rtas_tokens, list) {
@@ -256,7 +256,7 @@ int kvmppc_rtas_hcall(struct kvm_vcpu *v
 		}
 	}
 
-	mutex_unlock(&vcpu->kvm->lock);
+	mutex_unlock(&vcpu->kvm->arch.rtas_token_lock);
 
 	if (rc == 0) {
 		args.rets = orig_rets;
@@ -282,8 +282,6 @@ void kvmppc_rtas_tokens_free(struct kvm
 {
 	struct rtas_token_definition *d, *tmp;
 
-	lockdep_assert_held(&kvm->lock);
-
 	list_for_each_entry_safe(d, tmp, &kvm->arch.rtas_tokens, list) {
 		list_del(&d->list);
 		kfree(d);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_xive.c linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_xive.c
--- linux-libre-5.1-gnu/arch/powerpc/kvm/book3s_xive.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kvm/book3s_xive.c	2019-07-28 02:28:39.000000000 -0400
@@ -1786,7 +1786,6 @@ static void kvmppc_xive_cleanup_irq(u32
 {
 	xive_vm_esb_load(xd, XIVE_ESB_SET_PQ_01);
 	xive_native_configure_irq(hw_num, 0, MASKED, 0);
-	xive_cleanup_irq_data(xd);
 }
 
 static void kvmppc_xive_free_sources(struct kvmppc_xive_src_block *sb)
@@ -1800,9 +1799,10 @@ static void kvmppc_xive_free_sources(str
 			continue;
 
 		kvmppc_xive_cleanup_irq(state->ipi_number, &state->ipi_data);
+		xive_cleanup_irq_data(&state->ipi_data);
 		xive_native_free_irq(state->ipi_number);
 
-		/* Pass-through, cleanup too */
+		/* Pass-through, cleanup too but keep IRQ hw data */
 		if (state->pt_number)
 			kvmppc_xive_cleanup_irq(state->pt_number, state->pt_data);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/kvm/powerpc.c linux-libre-5.1.21-gnu/arch/powerpc/kvm/powerpc.c
--- linux-libre-5.1-gnu/arch/powerpc/kvm/powerpc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/kvm/powerpc.c	2019-07-28 02:28:39.000000000 -0400
@@ -650,6 +650,9 @@ int kvm_vm_ioctl_check_extension(struct
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
 		break;
+	case KVM_CAP_MAX_VCPU_ID:
+		r = KVM_MAX_VCPU_ID;
+		break;
 #ifdef CONFIG_PPC_BOOK3S_64
 	case KVM_CAP_PPC_GET_SMMU_INFO:
 		r = 1;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/mm/drmem.c linux-libre-5.1.21-gnu/arch/powerpc/mm/drmem.c
--- linux-libre-5.1-gnu/arch/powerpc/mm/drmem.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/mm/drmem.c	2019-07-28 02:28:39.000000000 -0400
@@ -366,8 +366,10 @@ static void __init init_drmem_v1_lmbs(co
 	if (!drmem_info->lmbs)
 		return;
 
-	for_each_drmem_lmb(lmb)
+	for_each_drmem_lmb(lmb) {
 		read_drconf_v1_cell(lmb, &prop);
+		lmb_set_nid(lmb);
+	}
 }
 
 static void __init init_drmem_v2_lmbs(const __be32 *prop)
@@ -412,6 +414,8 @@ static void __init init_drmem_v2_lmbs(co
 
 			lmb->aa_index = dr_cell.aa_index;
 			lmb->flags = dr_cell.flags;
+
+			lmb_set_nid(lmb);
 		}
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/mm/hash_low_32.S linux-libre-5.1.21-gnu/arch/powerpc/mm/hash_low_32.S
--- linux-libre-5.1-gnu/arch/powerpc/mm/hash_low_32.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/mm/hash_low_32.S	2019-07-28 02:28:39.000000000 -0400
@@ -539,7 +539,8 @@ _GLOBAL(flush_hash_pages)
 #ifdef CONFIG_SMP
 	lis	r9, (mmu_hash_lock - PAGE_OFFSET)@ha
 	addi	r9, r9, (mmu_hash_lock - PAGE_OFFSET)@l
-	lwz	r8,TASK_CPU(r2)
+	tophys	(r8, r2)
+	lwz	r8, TASK_CPU(r8)
 	oris	r8,r8,9
 10:	lwarx	r0,0,r9
 	cmpi	0,r0,0
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/mm/mem.c linux-libre-5.1.21-gnu/arch/powerpc/mm/mem.c
--- linux-libre-5.1-gnu/arch/powerpc/mm/mem.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/mm/mem.c	2019-07-28 02:28:39.000000000 -0400
@@ -255,7 +255,8 @@ void __init paging_init(void)
 	       (long int)((top_of_ram - total_ram) >> 20));
 
 #ifdef CONFIG_ZONE_DMA
-	max_zone_pfns[ZONE_DMA]	= min(max_low_pfn, 0x7fffffffUL >> PAGE_SHIFT);
+	max_zone_pfns[ZONE_DMA]	= min(max_low_pfn,
+			((1UL << ARCH_ZONE_DMA_BITS) - 1) >> PAGE_SHIFT);
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 #ifdef CONFIG_HIGHMEM
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/mm/mmu_context_book3s64.c linux-libre-5.1.21-gnu/arch/powerpc/mm/mmu_context_book3s64.c
--- linux-libre-5.1-gnu/arch/powerpc/mm/mmu_context_book3s64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/mm/mmu_context_book3s64.c	2019-07-28 02:28:39.000000000 -0400
@@ -55,14 +55,48 @@ EXPORT_SYMBOL_GPL(hash__alloc_context_id
 
 void slb_setup_new_exec(void);
 
+static int realloc_context_ids(mm_context_t *ctx)
+{
+	int i, id;
+
+	/*
+	 * id 0 (aka. ctx->id) is special, we always allocate a new one, even if
+	 * there wasn't one allocated previously (which happens in the exec
+	 * case where ctx is newly allocated).
+	 *
+	 * We have to be a bit careful here. We must keep the existing ids in
+	 * the array, so that we can test if they're non-zero to decide if we
+	 * need to allocate a new one. However in case of error we must free the
+	 * ids we've allocated but *not* any of the existing ones (or risk a
+	 * UAF). That's why we decrement i at the start of the error handling
+	 * loop, to skip the id that we just tested but couldn't reallocate.
+	 */
+	for (i = 0; i < ARRAY_SIZE(ctx->extended_id); i++) {
+		if (i == 0 || ctx->extended_id[i]) {
+			id = hash__alloc_context_id();
+			if (id < 0)
+				goto error;
+
+			ctx->extended_id[i] = id;
+		}
+	}
+
+	/* The caller expects us to return id */
+	return ctx->id;
+
+error:
+	for (i--; i >= 0; i--) {
+		if (ctx->extended_id[i])
+			ida_free(&mmu_context_ida, ctx->extended_id[i]);
+	}
+
+	return id;
+}
+
 static int hash__init_new_context(struct mm_struct *mm)
 {
 	int index;
 
-	index = hash__alloc_context_id();
-	if (index < 0)
-		return index;
-
 	/*
 	 * The old code would re-promote on fork, we don't do that when using
 	 * slices as it could cause problem promoting slices that have been
@@ -80,6 +114,10 @@ static int hash__init_new_context(struct
 	if (mm->context.id == 0)
 		slice_init_new_context_exec(mm);
 
+	index = realloc_context_ids(&mm->context);
+	if (index < 0)
+		return index;
+
 	subpage_prot_init_new_context(mm);
 
 	pkey_mm_init(mm);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/mm/numa.c linux-libre-5.1.21-gnu/arch/powerpc/mm/numa.c
--- linux-libre-5.1-gnu/arch/powerpc/mm/numa.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/mm/numa.c	2019-07-28 02:28:39.000000000 -0400
@@ -1498,6 +1498,9 @@ int start_topology_update(void)
 {
 	int rc = 0;
 
+	if (!topology_updates_enabled)
+		return 0;
+
 	if (firmware_has_feature(FW_FEATURE_PRRN)) {
 		if (!prrn_enabled) {
 			prrn_enabled = 1;
@@ -1531,6 +1534,9 @@ int stop_topology_update(void)
 {
 	int rc = 0;
 
+	if (!topology_updates_enabled)
+		return 0;
+
 	if (prrn_enabled) {
 		prrn_enabled = 0;
 #ifdef CONFIG_SMP
@@ -1588,11 +1594,13 @@ static ssize_t topology_write(struct fil
 
 	kbuf[read_len] = '\0';
 
-	if (!strncmp(kbuf, "on", 2))
+	if (!strncmp(kbuf, "on", 2)) {
+		topology_updates_enabled = true;
 		start_topology_update();
-	else if (!strncmp(kbuf, "off", 3))
+	} else if (!strncmp(kbuf, "off", 3)) {
 		stop_topology_update();
-	else
+		topology_updates_enabled = false;
+	} else
 		return -EINVAL;
 
 	return count;
@@ -1607,9 +1615,7 @@ static const struct file_operations topo
 
 static int topology_update_init(void)
 {
-	/* Do not poll for changes if disabled at boot */
-	if (topology_updates_enabled)
-		start_topology_update();
+	start_topology_update();
 
 	if (vphn_enabled)
 		topology_schedule_update();
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/mm/pgtable_32.c linux-libre-5.1.21-gnu/arch/powerpc/mm/pgtable_32.c
--- linux-libre-5.1-gnu/arch/powerpc/mm/pgtable_32.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/mm/pgtable_32.c	2019-07-28 02:28:39.000000000 -0400
@@ -353,7 +353,7 @@ void mark_initmem_nx(void)
 	unsigned long numpages = PFN_UP((unsigned long)_einittext) -
 				 PFN_DOWN((unsigned long)_sinittext);
 
-	if (v_block_mapped((unsigned long)_stext) + 1)
+	if (v_block_mapped((unsigned long)_stext + 1))
 		mmu_mark_initmem_nx();
 	else
 		change_page_attr(page, numpages, PAGE_KERNEL);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/mm/pgtable-book3s64.c linux-libre-5.1.21-gnu/arch/powerpc/mm/pgtable-book3s64.c
--- linux-libre-5.1-gnu/arch/powerpc/mm/pgtable-book3s64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/mm/pgtable-book3s64.c	2019-07-28 02:28:39.000000000 -0400
@@ -116,6 +116,9 @@ pmd_t pmdp_invalidate(struct vm_area_str
 	/*
 	 * This ensures that generic code that rely on IRQ disabling
 	 * to prevent a parallel THP split work as expected.
+	 *
+	 * Marking the entry with _PAGE_INVALID && ~_PAGE_PRESENT requires
+	 * a special case check in pmd_access_permitted.
 	 */
 	serialize_against_pte_lookup(vma->vm_mm);
 	return __pmd(old_pmd);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/net/bpf_jit_comp64.c linux-libre-5.1.21-gnu/arch/powerpc/net/bpf_jit_comp64.c
--- linux-libre-5.1-gnu/arch/powerpc/net/bpf_jit_comp64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/net/bpf_jit_comp64.c	2019-07-28 02:28:39.000000000 -0400
@@ -399,12 +399,12 @@ static int bpf_jit_build_body(struct bpf
 		case BPF_ALU64 | BPF_DIV | BPF_X: /* dst /= src */
 		case BPF_ALU64 | BPF_MOD | BPF_X: /* dst %= src */
 			if (BPF_OP(code) == BPF_MOD) {
-				PPC_DIVD(b2p[TMP_REG_1], dst_reg, src_reg);
+				PPC_DIVDU(b2p[TMP_REG_1], dst_reg, src_reg);
 				PPC_MULD(b2p[TMP_REG_1], src_reg,
 						b2p[TMP_REG_1]);
 				PPC_SUB(dst_reg, dst_reg, b2p[TMP_REG_1]);
 			} else
-				PPC_DIVD(dst_reg, dst_reg, src_reg);
+				PPC_DIVDU(dst_reg, dst_reg, src_reg);
 			break;
 		case BPF_ALU | BPF_MOD | BPF_K: /* (u32) dst %= (u32) imm */
 		case BPF_ALU | BPF_DIV | BPF_K: /* (u32) dst /= (u32) imm */
@@ -432,7 +432,7 @@ static int bpf_jit_build_body(struct bpf
 				break;
 			case BPF_ALU64:
 				if (BPF_OP(code) == BPF_MOD) {
-					PPC_DIVD(b2p[TMP_REG_2], dst_reg,
+					PPC_DIVDU(b2p[TMP_REG_2], dst_reg,
 							b2p[TMP_REG_1]);
 					PPC_MULD(b2p[TMP_REG_1],
 							b2p[TMP_REG_1],
@@ -440,7 +440,7 @@ static int bpf_jit_build_body(struct bpf
 					PPC_SUB(dst_reg, dst_reg,
 							b2p[TMP_REG_1]);
 				} else
-					PPC_DIVD(dst_reg, dst_reg,
+					PPC_DIVDU(dst_reg, dst_reg,
 							b2p[TMP_REG_1]);
 				break;
 			}
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/net/bpf_jit.h linux-libre-5.1.21-gnu/arch/powerpc/net/bpf_jit.h
--- linux-libre-5.1-gnu/arch/powerpc/net/bpf_jit.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/net/bpf_jit.h	2019-07-28 02:28:39.000000000 -0400
@@ -116,7 +116,7 @@
 				     ___PPC_RA(a) | IMM_L(i))
 #define PPC_DIVWU(d, a, b)	EMIT(PPC_INST_DIVWU | ___PPC_RT(d) |	      \
 				     ___PPC_RA(a) | ___PPC_RB(b))
-#define PPC_DIVD(d, a, b)	EMIT(PPC_INST_DIVD | ___PPC_RT(d) |	      \
+#define PPC_DIVDU(d, a, b)	EMIT(PPC_INST_DIVDU | ___PPC_RT(d) |	      \
 				     ___PPC_RA(a) | ___PPC_RB(b))
 #define PPC_AND(d, a, b)	EMIT(PPC_INST_AND | ___PPC_RA(d) |	      \
 				     ___PPC_RS(a) | ___PPC_RB(b))
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/perf/core-book3s.c linux-libre-5.1.21-gnu/arch/powerpc/perf/core-book3s.c
--- linux-libre-5.1-gnu/arch/powerpc/perf/core-book3s.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/perf/core-book3s.c	2019-07-28 02:28:39.000000000 -0400
@@ -1846,6 +1846,7 @@ static int power_pmu_event_init(struct p
 	int n;
 	int err;
 	struct cpu_hw_events *cpuhw;
+	u64 bhrb_filter;
 
 	if (!ppmu)
 		return -ENOENT;
@@ -1951,13 +1952,14 @@ static int power_pmu_event_init(struct p
 	err = power_check_constraints(cpuhw, events, cflags, n + 1);
 
 	if (has_branch_stack(event)) {
-		cpuhw->bhrb_filter = ppmu->bhrb_filter_map(
+		bhrb_filter = ppmu->bhrb_filter_map(
 					event->attr.branch_sample_type);
 
-		if (cpuhw->bhrb_filter == -1) {
+		if (bhrb_filter == -1) {
 			put_cpu_var(cpu_hw_events);
 			return -EOPNOTSUPP;
 		}
+		cpuhw->bhrb_filter = bhrb_filter;
 	}
 
 	put_cpu_var(cpu_hw_events);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/perf/imc-pmu.c linux-libre-5.1.21-gnu/arch/powerpc/perf/imc-pmu.c
--- linux-libre-5.1-gnu/arch/powerpc/perf/imc-pmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/perf/imc-pmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -487,6 +487,11 @@ static int nest_imc_event_init(struct pe
 	 * Get the base memory addresss for this cpu.
 	 */
 	chip_id = cpu_to_chip_id(event->cpu);
+
+	/* Return, if chip_id is not valid */
+	if (chip_id < 0)
+		return -ENODEV;
+
 	pcni = pmu->mem_info;
 	do {
 		if (pcni->id == chip_id) {
@@ -494,7 +499,7 @@ static int nest_imc_event_init(struct pe
 			break;
 		}
 		pcni++;
-	} while (pcni);
+	} while (pcni->vbase != 0);
 
 	if (!flag)
 		return -ENODEV;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/perf/power8-pmu.c linux-libre-5.1.21-gnu/arch/powerpc/perf/power8-pmu.c
--- linux-libre-5.1-gnu/arch/powerpc/perf/power8-pmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/perf/power8-pmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -29,6 +29,7 @@ enum {
 #define	POWER8_MMCRA_IFM1		0x0000000040000000UL
 #define	POWER8_MMCRA_IFM2		0x0000000080000000UL
 #define	POWER8_MMCRA_IFM3		0x00000000C0000000UL
+#define	POWER8_MMCRA_BHRB_MASK		0x00000000C0000000UL
 
 /*
  * Raw event encoding for PowerISA v2.07 (Power8):
@@ -243,6 +244,8 @@ static u64 power8_bhrb_filter_map(u64 br
 
 static void power8_config_bhrb(u64 pmu_bhrb_filter)
 {
+	pmu_bhrb_filter &= POWER8_MMCRA_BHRB_MASK;
+
 	/* Enable BHRB filter in PMU */
 	mtspr(SPRN_MMCRA, (mfspr(SPRN_MMCRA) | pmu_bhrb_filter));
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/perf/power9-pmu.c linux-libre-5.1.21-gnu/arch/powerpc/perf/power9-pmu.c
--- linux-libre-5.1-gnu/arch/powerpc/perf/power9-pmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/perf/power9-pmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -92,6 +92,7 @@ enum {
 #define POWER9_MMCRA_IFM1		0x0000000040000000UL
 #define POWER9_MMCRA_IFM2		0x0000000080000000UL
 #define POWER9_MMCRA_IFM3		0x00000000C0000000UL
+#define POWER9_MMCRA_BHRB_MASK		0x00000000C0000000UL
 
 /* Nasty Power9 specific hack */
 #define PVR_POWER9_CUMULUS		0x00002000
@@ -300,6 +301,8 @@ static u64 power9_bhrb_filter_map(u64 br
 
 static void power9_config_bhrb(u64 pmu_bhrb_filter)
 {
+	pmu_bhrb_filter &= POWER9_MMCRA_BHRB_MASK;
+
 	/* Enable BHRB filter in PMU */
 	mtspr(SPRN_MMCRA, (mfspr(SPRN_MMCRA) | pmu_bhrb_filter));
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/platforms/powermac/Kconfig linux-libre-5.1.21-gnu/arch/powerpc/platforms/powermac/Kconfig
--- linux-libre-5.1-gnu/arch/powerpc/platforms/powermac/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/platforms/powermac/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -7,6 +7,7 @@ config PPC_PMAC
 	select PPC_INDIRECT_PCI if PPC32
 	select PPC_MPC106 if PPC32
 	select PPC_NATIVE
+	select ZONE_DMA if PPC32
 	default y
 
 config PPC_PMAC64
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/platforms/powermac/sleep.S linux-libre-5.1.21-gnu/arch/powerpc/platforms/powermac/sleep.S
--- linux-libre-5.1-gnu/arch/powerpc/platforms/powermac/sleep.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/platforms/powermac/sleep.S	2019-07-28 02:28:39.000000000 -0400
@@ -38,10 +38,18 @@
 #define SL_IBAT2	0x48
 #define SL_DBAT3	0x50
 #define SL_IBAT3	0x58
-#define SL_TB		0x60
-#define SL_R2		0x68
-#define SL_CR		0x6c
-#define SL_R12		0x70	/* r12 to r31 */
+#define SL_DBAT4	0x60
+#define SL_IBAT4	0x68
+#define SL_DBAT5	0x70
+#define SL_IBAT5	0x78
+#define SL_DBAT6	0x80
+#define SL_IBAT6	0x88
+#define SL_DBAT7	0x90
+#define SL_IBAT7	0x98
+#define SL_TB		0xa0
+#define SL_R2		0xa8
+#define SL_CR		0xac
+#define SL_R12		0xb0	/* r12 to r31 */
 #define SL_SIZE		(SL_R12 + 80)
 
 	.section .text
@@ -126,6 +134,41 @@ _GLOBAL(low_sleep_handler)
 	mfibatl	r4,3
 	stw	r4,SL_IBAT3+4(r1)
 
+BEGIN_MMU_FTR_SECTION
+	mfspr	r4,SPRN_DBAT4U
+	stw	r4,SL_DBAT4(r1)
+	mfspr	r4,SPRN_DBAT4L
+	stw	r4,SL_DBAT4+4(r1)
+	mfspr	r4,SPRN_DBAT5U
+	stw	r4,SL_DBAT5(r1)
+	mfspr	r4,SPRN_DBAT5L
+	stw	r4,SL_DBAT5+4(r1)
+	mfspr	r4,SPRN_DBAT6U
+	stw	r4,SL_DBAT6(r1)
+	mfspr	r4,SPRN_DBAT6L
+	stw	r4,SL_DBAT6+4(r1)
+	mfspr	r4,SPRN_DBAT7U
+	stw	r4,SL_DBAT7(r1)
+	mfspr	r4,SPRN_DBAT7L
+	stw	r4,SL_DBAT7+4(r1)
+	mfspr	r4,SPRN_IBAT4U
+	stw	r4,SL_IBAT4(r1)
+	mfspr	r4,SPRN_IBAT4L
+	stw	r4,SL_IBAT4+4(r1)
+	mfspr	r4,SPRN_IBAT5U
+	stw	r4,SL_IBAT5(r1)
+	mfspr	r4,SPRN_IBAT5L
+	stw	r4,SL_IBAT5+4(r1)
+	mfspr	r4,SPRN_IBAT6U
+	stw	r4,SL_IBAT6(r1)
+	mfspr	r4,SPRN_IBAT6L
+	stw	r4,SL_IBAT6+4(r1)
+	mfspr	r4,SPRN_IBAT7U
+	stw	r4,SL_IBAT7(r1)
+	mfspr	r4,SPRN_IBAT7L
+	stw	r4,SL_IBAT7+4(r1)
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
+
 	/* Backup various CPU config stuffs */
 	bl	__save_cpu_setup
 
@@ -326,22 +369,37 @@ grackle_wake_up:
 	mtibatl	3,r4
 
 BEGIN_MMU_FTR_SECTION
-	li	r4,0
+	lwz	r4,SL_DBAT4(r1)
 	mtspr	SPRN_DBAT4U,r4
+	lwz	r4,SL_DBAT4+4(r1)
 	mtspr	SPRN_DBAT4L,r4
+	lwz	r4,SL_DBAT5(r1)
 	mtspr	SPRN_DBAT5U,r4
+	lwz	r4,SL_DBAT5+4(r1)
 	mtspr	SPRN_DBAT5L,r4
+	lwz	r4,SL_DBAT6(r1)
 	mtspr	SPRN_DBAT6U,r4
+	lwz	r4,SL_DBAT6+4(r1)
 	mtspr	SPRN_DBAT6L,r4
+	lwz	r4,SL_DBAT7(r1)
 	mtspr	SPRN_DBAT7U,r4
+	lwz	r4,SL_DBAT7+4(r1)
 	mtspr	SPRN_DBAT7L,r4
+	lwz	r4,SL_IBAT4(r1)
 	mtspr	SPRN_IBAT4U,r4
+	lwz	r4,SL_IBAT4+4(r1)
 	mtspr	SPRN_IBAT4L,r4
+	lwz	r4,SL_IBAT5(r1)
 	mtspr	SPRN_IBAT5U,r4
+	lwz	r4,SL_IBAT5+4(r1)
 	mtspr	SPRN_IBAT5L,r4
+	lwz	r4,SL_IBAT6(r1)
 	mtspr	SPRN_IBAT6U,r4
+	lwz	r4,SL_IBAT6+4(r1)
 	mtspr	SPRN_IBAT6L,r4
+	lwz	r4,SL_IBAT7(r1)
 	mtspr	SPRN_IBAT7U,r4
+	lwz	r4,SL_IBAT7+4(r1)
 	mtspr	SPRN_IBAT7L,r4
 END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS)
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/platforms/powernv/npu-dma.c linux-libre-5.1.21-gnu/arch/powerpc/platforms/powernv/npu-dma.c
--- linux-libre-5.1-gnu/arch/powerpc/platforms/powernv/npu-dma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/platforms/powernv/npu-dma.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,9 +31,22 @@ static DEFINE_SPINLOCK(npu_context_lock)
 static struct pci_dev *get_pci_dev(struct device_node *dn)
 {
 	struct pci_dn *pdn = PCI_DN(dn);
+	struct pci_dev *pdev;
 
-	return pci_get_domain_bus_and_slot(pci_domain_nr(pdn->phb->bus),
+	pdev = pci_get_domain_bus_and_slot(pci_domain_nr(pdn->phb->bus),
 					   pdn->busno, pdn->devfn);
+
+	/*
+	 * pci_get_domain_bus_and_slot() increased the reference count of
+	 * the PCI device, but callers don't need that actually as the PE
+	 * already holds a reference to the device. Since callers aren't
+	 * aware of the reference count change, call pci_dev_put() now to
+	 * avoid leaks.
+	 */
+	if (pdev)
+		pci_dev_put(pdev);
+
+	return pdev;
 }
 
 /* Given a NPU device get the associated PCI device. */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/platforms/powernv/opal-imc.c linux-libre-5.1.21-gnu/arch/powerpc/platforms/powernv/opal-imc.c
--- linux-libre-5.1-gnu/arch/powerpc/platforms/powernv/opal-imc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/platforms/powernv/opal-imc.c	2019-07-28 02:28:39.000000000 -0400
@@ -127,7 +127,7 @@ static int imc_get_mem_addr_nest(struct
 								nr_chips))
 		goto error;
 
-	pmu_ptr->mem_info = kcalloc(nr_chips, sizeof(*pmu_ptr->mem_info),
+	pmu_ptr->mem_info = kcalloc(nr_chips + 1, sizeof(*pmu_ptr->mem_info),
 				    GFP_KERNEL);
 	if (!pmu_ptr->mem_info)
 		goto error;
@@ -161,6 +161,10 @@ static int imc_pmu_create(struct device_
 	struct imc_pmu *pmu_ptr;
 	u32 offset;
 
+	/* Return for unknown domain */
+	if (domain < 0)
+		return -EINVAL;
+
 	/* memory for pmu */
 	pmu_ptr = kzalloc(sizeof(*pmu_ptr), GFP_KERNEL);
 	if (!pmu_ptr)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/platforms/powernv/pci-ioda.c linux-libre-5.1.21-gnu/arch/powerpc/platforms/powernv/pci-ioda.c
--- linux-libre-5.1-gnu/arch/powerpc/platforms/powernv/pci-ioda.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/platforms/powernv/pci-ioda.c	2019-07-28 02:28:39.000000000 -0400
@@ -2459,6 +2459,14 @@ static long pnv_pci_ioda2_setup_default_
 	if (!pnv_iommu_bypass_disabled)
 		pnv_pci_ioda2_set_bypass(pe, true);
 
+	/*
+	 * Set table base for the case of IOMMU DMA use. Usually this is done
+	 * from dma_dev_setup() which is not called when a device is returned
+	 * from VFIO so do it here.
+	 */
+	if (pe->pdev)
+		set_iommu_table_base(&pe->pdev->dev, tbl);
+
 	return 0;
 }
 
@@ -2546,6 +2554,8 @@ static void pnv_ioda2_take_ownership(str
 	pnv_pci_ioda2_unset_window(&pe->table_group, 0);
 	if (pe->pbus)
 		pnv_ioda_setup_bus_dma(pe, pe->pbus);
+	else if (pe->pdev)
+		set_iommu_table_base(&pe->pdev->dev, NULL);
 	iommu_tce_table_put(tbl);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c linux-libre-5.1.21-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c
--- linux-libre-5.1-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c	2019-07-28 02:28:39.000000000 -0400
@@ -379,7 +379,7 @@ static int dlpar_add_lmb(struct drmem_lm
 static int dlpar_remove_lmb(struct drmem_lmb *lmb)
 {
 	unsigned long block_sz;
-	int nid, rc;
+	int rc;
 
 	if (!lmb_is_removable(lmb))
 		return -EINVAL;
@@ -389,14 +389,14 @@ static int dlpar_remove_lmb(struct drmem
 		return rc;
 
 	block_sz = pseries_memory_block_size();
-	nid = memory_add_physaddr_to_nid(lmb->base_addr);
 
-	__remove_memory(nid, lmb->base_addr, block_sz);
+	__remove_memory(lmb->nid, lmb->base_addr, block_sz);
 
 	/* Update memory regions for memory remove */
 	memblock_remove(lmb->base_addr, block_sz);
 
 	invalidate_lmb_associativity_index(lmb);
+	lmb_clear_nid(lmb);
 	lmb->flags &= ~DRCONF_MEM_ASSIGNED;
 
 	return 0;
@@ -653,7 +653,7 @@ static int dlpar_memory_remove_by_ic(u32
 static int dlpar_add_lmb(struct drmem_lmb *lmb)
 {
 	unsigned long block_sz;
-	int nid, rc;
+	int rc;
 
 	if (lmb->flags & DRCONF_MEM_ASSIGNED)
 		return -EINVAL;
@@ -664,13 +664,11 @@ static int dlpar_add_lmb(struct drmem_lm
 		return rc;
 	}
 
+	lmb_set_nid(lmb);
 	block_sz = memory_block_size_bytes();
 
-	/* Find the node id for this address */
-	nid = memory_add_physaddr_to_nid(lmb->base_addr);
-
 	/* Add the memory */
-	rc = __add_memory(nid, lmb->base_addr, block_sz);
+	rc = __add_memory(lmb->nid, lmb->base_addr, block_sz);
 	if (rc) {
 		invalidate_lmb_associativity_index(lmb);
 		return rc;
@@ -678,8 +676,9 @@ static int dlpar_add_lmb(struct drmem_lm
 
 	rc = dlpar_online_lmb(lmb);
 	if (rc) {
-		__remove_memory(nid, lmb->base_addr, block_sz);
+		__remove_memory(lmb->nid, lmb->base_addr, block_sz);
 		invalidate_lmb_associativity_index(lmb);
+		lmb_clear_nid(lmb);
 	} else {
 		lmb->flags |= DRCONF_MEM_ASSIGNED;
 	}
@@ -981,6 +980,9 @@ static int pseries_update_drconf_memory(
 	if (!memblock_size)
 		return -EINVAL;
 
+	if (!pr->old_prop)
+		return 0;
+
 	p = (__be32 *) pr->old_prop->value;
 	if (!p)
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/riscv/configs/defconfig linux-libre-5.1.21-gnu/arch/riscv/configs/defconfig
--- linux-libre-5.1-gnu/arch/riscv/configs/defconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/riscv/configs/defconfig	2019-07-28 02:28:39.000000000 -0400
@@ -49,6 +49,8 @@ CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_EARLYCON_RISCV_SBI=y
+CONFIG_SERIAL_SIFIVE=y
+CONFIG_SERIAL_SIFIVE_CONSOLE=y
 CONFIG_HVC_RISCV_SBI=y
 # CONFIG_PTP_1588_CLOCK is not set
 CONFIG_DRM=y
@@ -64,6 +66,8 @@ CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_UAS=y
 CONFIG_VIRTIO_MMIO=y
+CONFIG_CLK_SIFIVE=y
+CONFIG_CLK_SIFIVE_FU540_PRCI=y
 CONFIG_SIFIVE_PLIC=y
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/riscv/lib/delay.c linux-libre-5.1.21-gnu/arch/riscv/lib/delay.c
--- linux-libre-5.1-gnu/arch/riscv/lib/delay.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/riscv/lib/delay.c	2019-07-28 02:28:39.000000000 -0400
@@ -88,7 +88,7 @@ EXPORT_SYMBOL(__delay);
 
 void udelay(unsigned long usecs)
 {
-	unsigned long ucycles = usecs * lpj_fine * UDELAY_MULT;
+	u64 ucycles = (u64)usecs * lpj_fine * UDELAY_MULT;
 
 	if (unlikely(usecs > MAX_UDELAY_US)) {
 		__delay((u64)usecs * riscv_timebase / 1000000ULL);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/riscv/mm/fault.c linux-libre-5.1.21-gnu/arch/riscv/mm/fault.c
--- linux-libre-5.1-gnu/arch/riscv/mm/fault.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/riscv/mm/fault.c	2019-07-28 02:28:39.000000000 -0400
@@ -29,6 +29,7 @@
 
 #include <asm/pgalloc.h>
 #include <asm/ptrace.h>
+#include <asm/tlbflush.h>
 
 /*
  * This routine handles page faults.  It determines the address and the
@@ -281,6 +282,18 @@ vmalloc_fault:
 		pte_k = pte_offset_kernel(pmd_k, addr);
 		if (!pte_present(*pte_k))
 			goto no_context;
+
+		/*
+		 * The kernel assumes that TLBs don't cache invalid
+		 * entries, but in RISC-V, SFENCE.VMA specifies an
+		 * ordering constraint, not a cache flush; it is
+		 * necessary even after writing invalid entries.
+		 * Relying on flush_tlb_fix_spurious_fault would
+		 * suffice, but the extra traps reduce
+		 * performance. So, eagerly SFENCE.VMA.
+		 */
+		local_flush_tlb_page(addr);
+
 		return;
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/riscv/net/bpf_jit_comp.c linux-libre-5.1.21-gnu/arch/riscv/net/bpf_jit_comp.c
--- linux-libre-5.1-gnu/arch/riscv/net/bpf_jit_comp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/riscv/net/bpf_jit_comp.c	2019-07-28 02:28:39.000000000 -0400
@@ -751,22 +751,32 @@ static int emit_insn(const struct bpf_in
 	case BPF_ALU | BPF_ADD | BPF_X:
 	case BPF_ALU64 | BPF_ADD | BPF_X:
 		emit(is64 ? rv_add(rd, rd, rs) : rv_addw(rd, rd, rs), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_SUB | BPF_X:
 	case BPF_ALU64 | BPF_SUB | BPF_X:
 		emit(is64 ? rv_sub(rd, rd, rs) : rv_subw(rd, rd, rs), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_AND | BPF_X:
 	case BPF_ALU64 | BPF_AND | BPF_X:
 		emit(rv_and(rd, rd, rs), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_OR | BPF_X:
 	case BPF_ALU64 | BPF_OR | BPF_X:
 		emit(rv_or(rd, rd, rs), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_XOR | BPF_X:
 	case BPF_ALU64 | BPF_XOR | BPF_X:
 		emit(rv_xor(rd, rd, rs), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_MUL | BPF_X:
 	case BPF_ALU64 | BPF_MUL | BPF_X:
@@ -789,14 +799,20 @@ static int emit_insn(const struct bpf_in
 	case BPF_ALU | BPF_LSH | BPF_X:
 	case BPF_ALU64 | BPF_LSH | BPF_X:
 		emit(is64 ? rv_sll(rd, rd, rs) : rv_sllw(rd, rd, rs), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_RSH | BPF_X:
 	case BPF_ALU64 | BPF_RSH | BPF_X:
 		emit(is64 ? rv_srl(rd, rd, rs) : rv_srlw(rd, rd, rs), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_ARSH | BPF_X:
 	case BPF_ALU64 | BPF_ARSH | BPF_X:
 		emit(is64 ? rv_sra(rd, rd, rs) : rv_sraw(rd, rd, rs), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 
 	/* dst = -dst */
@@ -804,6 +820,8 @@ static int emit_insn(const struct bpf_in
 	case BPF_ALU64 | BPF_NEG:
 		emit(is64 ? rv_sub(rd, RV_REG_ZERO, rd) :
 		     rv_subw(rd, RV_REG_ZERO, rd), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 
 	/* dst = BSWAP##imm(dst) */
@@ -958,14 +976,20 @@ out_be:
 	case BPF_ALU | BPF_LSH | BPF_K:
 	case BPF_ALU64 | BPF_LSH | BPF_K:
 		emit(is64 ? rv_slli(rd, rd, imm) : rv_slliw(rd, rd, imm), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_RSH | BPF_K:
 	case BPF_ALU64 | BPF_RSH | BPF_K:
 		emit(is64 ? rv_srli(rd, rd, imm) : rv_srliw(rd, rd, imm), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 	case BPF_ALU | BPF_ARSH | BPF_K:
 	case BPF_ALU64 | BPF_ARSH | BPF_K:
 		emit(is64 ? rv_srai(rd, rd, imm) : rv_sraiw(rd, rd, imm), ctx);
+		if (!is64)
+			emit_zext_32(rd, ctx);
 		break;
 
 	/* JUMP off */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/crypto/aes_s390.c linux-libre-5.1.21-gnu/arch/s390/crypto/aes_s390.c
--- linux-libre-5.1-gnu/arch/s390/crypto/aes_s390.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/crypto/aes_s390.c	2019-07-28 02:28:39.000000000 -0400
@@ -27,14 +27,14 @@
 #include <linux/module.h>
 #include <linux/cpufeature.h>
 #include <linux/init.h>
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/fips.h>
 #include <linux/string.h>
 #include <crypto/xts.h>
 #include <asm/cpacf.h>
 
 static u8 *ctrblk;
-static DEFINE_SPINLOCK(ctrblk_lock);
+static DEFINE_MUTEX(ctrblk_lock);
 
 static cpacf_mask_t km_functions, kmc_functions, kmctr_functions,
 		    kma_functions;
@@ -698,7 +698,7 @@ static int ctr_aes_crypt(struct blkciphe
 	unsigned int n, nbytes;
 	int ret, locked;
 
-	locked = spin_trylock(&ctrblk_lock);
+	locked = mutex_trylock(&ctrblk_lock);
 
 	ret = blkcipher_walk_virt_block(desc, walk, AES_BLOCK_SIZE);
 	while ((nbytes = walk->nbytes) >= AES_BLOCK_SIZE) {
@@ -716,7 +716,7 @@ static int ctr_aes_crypt(struct blkciphe
 		ret = blkcipher_walk_done(desc, walk, nbytes - n);
 	}
 	if (locked)
-		spin_unlock(&ctrblk_lock);
+		mutex_unlock(&ctrblk_lock);
 	/*
 	 * final block may be < AES_BLOCK_SIZE, copy only nbytes
 	 */
@@ -826,19 +826,45 @@ static int gcm_aes_setauthsize(struct cr
 	return 0;
 }
 
-static void gcm_sg_walk_start(struct gcm_sg_walk *gw, struct scatterlist *sg,
-			      unsigned int len)
+static void gcm_walk_start(struct gcm_sg_walk *gw, struct scatterlist *sg,
+			   unsigned int len)
 {
 	memset(gw, 0, sizeof(*gw));
 	gw->walk_bytes_remain = len;
 	scatterwalk_start(&gw->walk, sg);
 }
 
-static int gcm_sg_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
+static inline unsigned int _gcm_sg_clamp_and_map(struct gcm_sg_walk *gw)
+{
+	struct scatterlist *nextsg;
+
+	gw->walk_bytes = scatterwalk_clamp(&gw->walk, gw->walk_bytes_remain);
+	while (!gw->walk_bytes) {
+		nextsg = sg_next(gw->walk.sg);
+		if (!nextsg)
+			return 0;
+		scatterwalk_start(&gw->walk, nextsg);
+		gw->walk_bytes = scatterwalk_clamp(&gw->walk,
+						   gw->walk_bytes_remain);
+	}
+	gw->walk_ptr = scatterwalk_map(&gw->walk);
+	return gw->walk_bytes;
+}
+
+static inline void _gcm_sg_unmap_and_advance(struct gcm_sg_walk *gw,
+					     unsigned int nbytes)
+{
+	gw->walk_bytes_remain -= nbytes;
+	scatterwalk_unmap(&gw->walk);
+	scatterwalk_advance(&gw->walk, nbytes);
+	scatterwalk_done(&gw->walk, 0, gw->walk_bytes_remain);
+	gw->walk_ptr = NULL;
+}
+
+static int gcm_in_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
 {
 	int n;
 
-	/* minbytesneeded <= AES_BLOCK_SIZE */
 	if (gw->buf_bytes && gw->buf_bytes >= minbytesneeded) {
 		gw->ptr = gw->buf;
 		gw->nbytes = gw->buf_bytes;
@@ -851,13 +877,11 @@ static int gcm_sg_walk_go(struct gcm_sg_
 		goto out;
 	}
 
-	gw->walk_bytes = scatterwalk_clamp(&gw->walk, gw->walk_bytes_remain);
-	if (!gw->walk_bytes) {
-		scatterwalk_start(&gw->walk, sg_next(gw->walk.sg));
-		gw->walk_bytes = scatterwalk_clamp(&gw->walk,
-						   gw->walk_bytes_remain);
+	if (!_gcm_sg_clamp_and_map(gw)) {
+		gw->ptr = NULL;
+		gw->nbytes = 0;
+		goto out;
 	}
-	gw->walk_ptr = scatterwalk_map(&gw->walk);
 
 	if (!gw->buf_bytes && gw->walk_bytes >= minbytesneeded) {
 		gw->ptr = gw->walk_ptr;
@@ -869,51 +893,90 @@ static int gcm_sg_walk_go(struct gcm_sg_
 		n = min(gw->walk_bytes, AES_BLOCK_SIZE - gw->buf_bytes);
 		memcpy(gw->buf + gw->buf_bytes, gw->walk_ptr, n);
 		gw->buf_bytes += n;
-		gw->walk_bytes_remain -= n;
-		scatterwalk_unmap(&gw->walk);
-		scatterwalk_advance(&gw->walk, n);
-		scatterwalk_done(&gw->walk, 0, gw->walk_bytes_remain);
-
+		_gcm_sg_unmap_and_advance(gw, n);
 		if (gw->buf_bytes >= minbytesneeded) {
 			gw->ptr = gw->buf;
 			gw->nbytes = gw->buf_bytes;
 			goto out;
 		}
-
-		gw->walk_bytes = scatterwalk_clamp(&gw->walk,
-						   gw->walk_bytes_remain);
-		if (!gw->walk_bytes) {
-			scatterwalk_start(&gw->walk, sg_next(gw->walk.sg));
-			gw->walk_bytes = scatterwalk_clamp(&gw->walk,
-							gw->walk_bytes_remain);
+		if (!_gcm_sg_clamp_and_map(gw)) {
+			gw->ptr = NULL;
+			gw->nbytes = 0;
+			goto out;
 		}
-		gw->walk_ptr = scatterwalk_map(&gw->walk);
 	}
 
 out:
 	return gw->nbytes;
 }
 
-static void gcm_sg_walk_done(struct gcm_sg_walk *gw, unsigned int bytesdone)
+static int gcm_out_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
 {
-	int n;
+	if (gw->walk_bytes_remain == 0) {
+		gw->ptr = NULL;
+		gw->nbytes = 0;
+		goto out;
+	}
 
+	if (!_gcm_sg_clamp_and_map(gw)) {
+		gw->ptr = NULL;
+		gw->nbytes = 0;
+		goto out;
+	}
+
+	if (gw->walk_bytes >= minbytesneeded) {
+		gw->ptr = gw->walk_ptr;
+		gw->nbytes = gw->walk_bytes;
+		goto out;
+	}
+
+	scatterwalk_unmap(&gw->walk);
+	gw->walk_ptr = NULL;
+
+	gw->ptr = gw->buf;
+	gw->nbytes = sizeof(gw->buf);
+
+out:
+	return gw->nbytes;
+}
+
+static int gcm_in_walk_done(struct gcm_sg_walk *gw, unsigned int bytesdone)
+{
 	if (gw->ptr == NULL)
-		return;
+		return 0;
 
 	if (gw->ptr == gw->buf) {
-		n = gw->buf_bytes - bytesdone;
+		int n = gw->buf_bytes - bytesdone;
 		if (n > 0) {
 			memmove(gw->buf, gw->buf + bytesdone, n);
-			gw->buf_bytes -= n;
+			gw->buf_bytes = n;
 		} else
 			gw->buf_bytes = 0;
-	} else {
-		gw->walk_bytes_remain -= bytesdone;
-		scatterwalk_unmap(&gw->walk);
-		scatterwalk_advance(&gw->walk, bytesdone);
-		scatterwalk_done(&gw->walk, 0, gw->walk_bytes_remain);
-	}
+	} else
+		_gcm_sg_unmap_and_advance(gw, bytesdone);
+
+	return bytesdone;
+}
+
+static int gcm_out_walk_done(struct gcm_sg_walk *gw, unsigned int bytesdone)
+{
+	int i, n;
+
+	if (gw->ptr == NULL)
+		return 0;
+
+	if (gw->ptr == gw->buf) {
+		for (i = 0; i < bytesdone; i += n) {
+			if (!_gcm_sg_clamp_and_map(gw))
+				return i;
+			n = min(gw->walk_bytes, bytesdone - i);
+			memcpy(gw->walk_ptr, gw->buf + i, n);
+			_gcm_sg_unmap_and_advance(gw, n);
+		}
+	} else
+		_gcm_sg_unmap_and_advance(gw, bytesdone);
+
+	return bytesdone;
 }
 
 static int gcm_aes_crypt(struct aead_request *req, unsigned int flags)
@@ -926,7 +989,7 @@ static int gcm_aes_crypt(struct aead_req
 	unsigned int pclen = req->cryptlen;
 	int ret = 0;
 
-	unsigned int len, in_bytes, out_bytes,
+	unsigned int n, len, in_bytes, out_bytes,
 		     min_bytes, bytes, aad_bytes, pc_bytes;
 	struct gcm_sg_walk gw_in, gw_out;
 	u8 tag[GHASH_DIGEST_SIZE];
@@ -963,14 +1026,14 @@ static int gcm_aes_crypt(struct aead_req
 	*(u32 *)(param.j0 + ivsize) = 1;
 	memcpy(param.k, ctx->key, ctx->key_len);
 
-	gcm_sg_walk_start(&gw_in, req->src, len);
-	gcm_sg_walk_start(&gw_out, req->dst, len);
+	gcm_walk_start(&gw_in, req->src, len);
+	gcm_walk_start(&gw_out, req->dst, len);
 
 	do {
 		min_bytes = min_t(unsigned int,
 				  aadlen > 0 ? aadlen : pclen, AES_BLOCK_SIZE);
-		in_bytes = gcm_sg_walk_go(&gw_in, min_bytes);
-		out_bytes = gcm_sg_walk_go(&gw_out, min_bytes);
+		in_bytes = gcm_in_walk_go(&gw_in, min_bytes);
+		out_bytes = gcm_out_walk_go(&gw_out, min_bytes);
 		bytes = min(in_bytes, out_bytes);
 
 		if (aadlen + pclen <= bytes) {
@@ -997,8 +1060,11 @@ static int gcm_aes_crypt(struct aead_req
 			  gw_in.ptr + aad_bytes, pc_bytes,
 			  gw_in.ptr, aad_bytes);
 
-		gcm_sg_walk_done(&gw_in, aad_bytes + pc_bytes);
-		gcm_sg_walk_done(&gw_out, aad_bytes + pc_bytes);
+		n = aad_bytes + pc_bytes;
+		if (gcm_in_walk_done(&gw_in, n) != n)
+			return -ENOMEM;
+		if (gcm_out_walk_done(&gw_out, n) != n)
+			return -ENOMEM;
 		aadlen -= aad_bytes;
 		pclen -= pc_bytes;
 	} while (aadlen + pclen > 0);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/crypto/des_s390.c linux-libre-5.1.21-gnu/arch/s390/crypto/des_s390.c
--- linux-libre-5.1-gnu/arch/s390/crypto/des_s390.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/crypto/des_s390.c	2019-07-28 02:28:39.000000000 -0400
@@ -14,6 +14,7 @@
 #include <linux/cpufeature.h>
 #include <linux/crypto.h>
 #include <linux/fips.h>
+#include <linux/mutex.h>
 #include <crypto/algapi.h>
 #include <crypto/des.h>
 #include <asm/cpacf.h>
@@ -21,7 +22,7 @@
 #define DES3_KEY_SIZE	(3 * DES_KEY_SIZE)
 
 static u8 *ctrblk;
-static DEFINE_SPINLOCK(ctrblk_lock);
+static DEFINE_MUTEX(ctrblk_lock);
 
 static cpacf_mask_t km_functions, kmc_functions, kmctr_functions;
 
@@ -387,7 +388,7 @@ static int ctr_desall_crypt(struct blkci
 	unsigned int n, nbytes;
 	int ret, locked;
 
-	locked = spin_trylock(&ctrblk_lock);
+	locked = mutex_trylock(&ctrblk_lock);
 
 	ret = blkcipher_walk_virt_block(desc, walk, DES_BLOCK_SIZE);
 	while ((nbytes = walk->nbytes) >= DES_BLOCK_SIZE) {
@@ -404,7 +405,7 @@ static int ctr_desall_crypt(struct blkci
 		ret = blkcipher_walk_done(desc, walk, nbytes - n);
 	}
 	if (locked)
-		spin_unlock(&ctrblk_lock);
+		mutex_unlock(&ctrblk_lock);
 	/* final block may be < DES_BLOCK_SIZE, copy only nbytes */
 	if (nbytes) {
 		cpacf_kmctr(fc, ctx->key, buf, walk->src.virt.addr,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/include/asm/ap.h linux-libre-5.1.21-gnu/arch/s390/include/asm/ap.h
--- linux-libre-5.1-gnu/arch/s390/include/asm/ap.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/include/asm/ap.h	2019-07-28 02:28:39.000000000 -0400
@@ -160,8 +160,8 @@ struct ap_config_info {
 	unsigned char Nd;		/* max # of Domains - 1 */
 	unsigned char _reserved3[10];
 	unsigned int apm[8];		/* AP ID mask */
-	unsigned int aqm[8];		/* AP queue mask */
-	unsigned int adm[8];		/* AP domain mask */
+	unsigned int aqm[8];		/* AP (usage) queue mask */
+	unsigned int adm[8];		/* AP (control) domain mask */
 	unsigned char _reserved4[16];
 } __aligned(8);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/include/asm/facility.h linux-libre-5.1.21-gnu/arch/s390/include/asm/facility.h
--- linux-libre-5.1-gnu/arch/s390/include/asm/facility.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/include/asm/facility.h	2019-07-28 02:28:39.000000000 -0400
@@ -59,6 +59,18 @@ static inline int test_facility(unsigned
 	return __test_facility(nr, &S390_lowcore.stfle_fac_list);
 }
 
+static inline unsigned long __stfle_asm(u64 *stfle_fac_list, int size)
+{
+	register unsigned long reg0 asm("0") = size - 1;
+
+	asm volatile(
+		".insn s,0xb2b00000,0(%1)" /* stfle */
+		: "+d" (reg0)
+		: "a" (stfle_fac_list)
+		: "memory", "cc");
+	return reg0;
+}
+
 /**
  * stfle - Store facility list extended
  * @stfle_fac_list: array where facility list can be stored
@@ -75,13 +87,8 @@ static inline void __stfle(u64 *stfle_fa
 	memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
 	if (S390_lowcore.stfl_fac_list & 0x01000000) {
 		/* More facility bits available with stfle */
-		register unsigned long reg0 asm("0") = size - 1;
-
-		asm volatile(".insn s,0xb2b00000,0(%1)" /* stfle */
-			     : "+d" (reg0)
-			     : "a" (stfle_fac_list)
-			     : "memory", "cc");
-		nr = (reg0 + 1) * 8; /* # bytes stored by stfle */
+		nr = __stfle_asm(stfle_fac_list, size);
+		nr = min_t(unsigned long, (nr + 1) * 8, size * 8);
 	}
 	memset((char *) stfle_fac_list + nr, 0, size * 8 - nr);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/include/asm/pgtable.h linux-libre-5.1.21-gnu/arch/s390/include/asm/pgtable.h
--- linux-libre-5.1-gnu/arch/s390/include/asm/pgtable.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/include/asm/pgtable.h	2019-07-28 02:28:39.000000000 -0400
@@ -238,7 +238,7 @@ static inline int is_module_addr(void *a
 #define _REGION_ENTRY_NOEXEC	0x100	/* region no-execute bit	    */
 #define _REGION_ENTRY_OFFSET	0xc0	/* region table offset		    */
 #define _REGION_ENTRY_INVALID	0x20	/* invalid region table entry	    */
-#define _REGION_ENTRY_TYPE_MASK	0x0c	/* region/segment table type mask   */
+#define _REGION_ENTRY_TYPE_MASK	0x0c	/* region table type mask	    */
 #define _REGION_ENTRY_TYPE_R1	0x0c	/* region first table type	    */
 #define _REGION_ENTRY_TYPE_R2	0x08	/* region second table type	    */
 #define _REGION_ENTRY_TYPE_R3	0x04	/* region third table type	    */
@@ -277,6 +277,7 @@ static inline int is_module_addr(void *a
 #define _SEGMENT_ENTRY_PROTECT	0x200	/* segment protection bit	    */
 #define _SEGMENT_ENTRY_NOEXEC	0x100	/* segment no-execute bit	    */
 #define _SEGMENT_ENTRY_INVALID	0x20	/* invalid segment table entry	    */
+#define _SEGMENT_ENTRY_TYPE_MASK 0x0c	/* segment table type mask	    */
 
 #define _SEGMENT_ENTRY		(0)
 #define _SEGMENT_ENTRY_EMPTY	(_SEGMENT_ENTRY_INVALID)
@@ -614,15 +615,9 @@ static inline int pgd_none(pgd_t pgd)
 
 static inline int pgd_bad(pgd_t pgd)
 {
-	/*
-	 * With dynamic page table levels the pgd can be a region table
-	 * entry or a segment table entry. Check for the bit that are
-	 * invalid for either table entry.
-	 */
-	unsigned long mask =
-		~_SEGMENT_ENTRY_ORIGIN & ~_REGION_ENTRY_INVALID &
-		~_REGION_ENTRY_TYPE_MASK & ~_REGION_ENTRY_LENGTH;
-	return (pgd_val(pgd) & mask) != 0;
+	if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R1)
+		return 0;
+	return (pgd_val(pgd) & ~_REGION_ENTRY_BITS) != 0;
 }
 
 static inline unsigned long pgd_pfn(pgd_t pgd)
@@ -703,6 +698,8 @@ static inline int pmd_large(pmd_t pmd)
 
 static inline int pmd_bad(pmd_t pmd)
 {
+	if ((pmd_val(pmd) & _SEGMENT_ENTRY_TYPE_MASK) > 0)
+		return 1;
 	if (pmd_large(pmd))
 		return (pmd_val(pmd) & ~_SEGMENT_ENTRY_BITS_LARGE) != 0;
 	return (pmd_val(pmd) & ~_SEGMENT_ENTRY_BITS) != 0;
@@ -710,8 +707,12 @@ static inline int pmd_bad(pmd_t pmd)
 
 static inline int pud_bad(pud_t pud)
 {
-	if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R3)
-		return pmd_bad(__pmd(pud_val(pud)));
+	unsigned long type = pud_val(pud) & _REGION_ENTRY_TYPE_MASK;
+
+	if (type > _REGION_ENTRY_TYPE_R3)
+		return 1;
+	if (type < _REGION_ENTRY_TYPE_R3)
+		return 0;
 	if (pud_large(pud))
 		return (pud_val(pud) & ~_REGION_ENTRY_BITS_LARGE) != 0;
 	return (pud_val(pud) & ~_REGION_ENTRY_BITS) != 0;
@@ -719,8 +720,12 @@ static inline int pud_bad(pud_t pud)
 
 static inline int p4d_bad(p4d_t p4d)
 {
-	if ((p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK) < _REGION_ENTRY_TYPE_R2)
-		return pud_bad(__pud(p4d_val(p4d)));
+	unsigned long type = p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK;
+
+	if (type > _REGION_ENTRY_TYPE_R2)
+		return 1;
+	if (type < _REGION_ENTRY_TYPE_R2)
+		return 0;
 	return (p4d_val(p4d) & ~_REGION_ENTRY_BITS) != 0;
 }
 
@@ -1204,41 +1209,78 @@ static inline pte_t mk_pte(struct page *
 #define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
 #define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1))
 
-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-#define pgd_offset_raw(pgd, addr) ((pgd) + pgd_index(addr))
-
 #define pmd_deref(pmd) (pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN)
 #define pud_deref(pud) (pud_val(pud) & _REGION_ENTRY_ORIGIN)
 #define p4d_deref(pud) (p4d_val(pud) & _REGION_ENTRY_ORIGIN)
 #define pgd_deref(pgd) (pgd_val(pgd) & _REGION_ENTRY_ORIGIN)
 
-static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
+/*
+ * The pgd_offset function *always* adds the index for the top-level
+ * region/segment table. This is done to get a sequence like the
+ * following to work:
+ *	pgdp = pgd_offset(current->mm, addr);
+ *	pgd = READ_ONCE(*pgdp);
+ *	p4dp = p4d_offset(&pgd, addr);
+ *	...
+ * The subsequent p4d_offset, pud_offset and pmd_offset functions
+ * only add an index if they dereferenced the pointer.
+ */
+static inline pgd_t *pgd_offset_raw(pgd_t *pgd, unsigned long address)
 {
-	p4d_t *p4d = (p4d_t *) pgd;
+	unsigned long rste;
+	unsigned int shift;
 
-	if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R1)
-		p4d = (p4d_t *) pgd_deref(*pgd);
-	return p4d + p4d_index(address);
+	/* Get the first entry of the top level table */
+	rste = pgd_val(*pgd);
+	/* Pick up the shift from the table type of the first entry */
+	shift = ((rste & _REGION_ENTRY_TYPE_MASK) >> 2) * 11 + 20;
+	return pgd + ((address >> shift) & (PTRS_PER_PGD - 1));
 }
 
-static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
+#define pgd_offset(mm, address) pgd_offset_raw(READ_ONCE((mm)->pgd), address)
+#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+
+static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
 {
-	pud_t *pud = (pud_t *) p4d;
+	if ((pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) >= _REGION_ENTRY_TYPE_R1)
+		return (p4d_t *) pgd_deref(*pgd) + p4d_index(address);
+	return (p4d_t *) pgd;
+}
 
-	if ((p4d_val(*p4d) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
-		pud = (pud_t *) p4d_deref(*p4d);
-	return pud + pud_index(address);
+static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address)
+{
+	if ((p4d_val(*p4d) & _REGION_ENTRY_TYPE_MASK) >= _REGION_ENTRY_TYPE_R2)
+		return (pud_t *) p4d_deref(*p4d) + pud_index(address);
+	return (pud_t *) p4d;
 }
 
 static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
 {
-	pmd_t *pmd = (pmd_t *) pud;
+	if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) >= _REGION_ENTRY_TYPE_R3)
+		return (pmd_t *) pud_deref(*pud) + pmd_index(address);
+	return (pmd_t *) pud;
+}
 
-	if ((pud_val(*pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
-		pmd = (pmd_t *) pud_deref(*pud);
-	return pmd + pmd_index(address);
+static inline pte_t *pte_offset(pmd_t *pmd, unsigned long address)
+{
+	return (pte_t *) pmd_deref(*pmd) + pte_index(address);
+}
+
+#define pte_offset_kernel(pmd, address) pte_offset(pmd, address)
+#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
+#define pte_unmap(pte) do { } while (0)
+
+static inline bool gup_fast_permitted(unsigned long start, int nr_pages)
+{
+	unsigned long len, end;
+
+	len = (unsigned long) nr_pages << PAGE_SHIFT;
+	end = start + len;
+	if (end < start)
+		return false;
+	return end <= current->mm->context.asce_limit;
 }
+#define gup_fast_permitted gup_fast_permitted
 
 #define pfn_pte(pfn,pgprot) mk_pte_phys(__pa((pfn) << PAGE_SHIFT),(pgprot))
 #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
@@ -1249,12 +1291,6 @@ static inline pmd_t *pmd_offset(pud_t *p
 #define p4d_page(p4d) pfn_to_page(p4d_pfn(p4d))
 #define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd))
 
-/* Find an entry in the lowest level page table.. */
-#define pte_offset(pmd, addr) ((pte_t *) pmd_deref(*(pmd)) + pte_index(addr))
-#define pte_offset_kernel(pmd, address) pte_offset(pmd,address)
-#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
-#define pte_unmap(pte) do { } while (0)
-
 static inline pmd_t pmd_wrprotect(pmd_t pmd)
 {
 	pmd_val(pmd) &= ~_SEGMENT_ENTRY_WRITE;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/Kconfig linux-libre-5.1.21-gnu/arch/s390/Kconfig
--- linux-libre-5.1-gnu/arch/s390/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -149,6 +149,7 @@ config S390
 	select HAVE_FUNCTION_TRACER
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_GCC_PLUGINS
+	select HAVE_GENERIC_GUP
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZ4
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/kernel/kexec_elf.c linux-libre-5.1.21-gnu/arch/s390/kernel/kexec_elf.c
--- linux-libre-5.1-gnu/arch/s390/kernel/kexec_elf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/kernel/kexec_elf.c	2019-07-28 02:28:39.000000000 -0400
@@ -19,10 +19,15 @@ static int kexec_file_add_elf_kernel(str
 	struct kexec_buf buf;
 	const Elf_Ehdr *ehdr;
 	const Elf_Phdr *phdr;
+	Elf_Addr entry;
 	int i, ret;
 
 	ehdr = (Elf_Ehdr *)kernel;
 	buf.image = image;
+	if (image->type == KEXEC_TYPE_CRASH)
+		entry = STARTUP_KDUMP_OFFSET;
+	else
+		entry = ehdr->e_entry;
 
 	phdr = (void *)ehdr + ehdr->e_phoff;
 	for (i = 0; i < ehdr->e_phnum; i++, phdr++) {
@@ -35,7 +40,7 @@ static int kexec_file_add_elf_kernel(str
 		buf.mem = ALIGN(phdr->p_paddr, phdr->p_align);
 		buf.memsz = phdr->p_memsz;
 
-		if (phdr->p_paddr == 0) {
+		if (entry - phdr->p_paddr < phdr->p_memsz) {
 			data->kernel_buf = buf.buffer;
 			data->memsz += STARTUP_NORMAL_OFFSET;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/kernel/nospec-branch.c linux-libre-5.1.21-gnu/arch/s390/kernel/nospec-branch.c
--- linux-libre-5.1-gnu/arch/s390/kernel/nospec-branch.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/kernel/nospec-branch.c	2019-07-28 02:28:39.000000000 -0400
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/device.h>
+#include <linux/cpu.h>
 #include <asm/nospec-branch.h>
 
 static int __init nobp_setup_early(char *str)
@@ -58,7 +59,7 @@ early_param("nospectre_v2", nospectre_v2
 
 void __init nospec_auto_detect(void)
 {
-	if (test_facility(156)) {
+	if (test_facility(156) || cpu_mitigations_off()) {
 		/*
 		 * The machine supports etokens.
 		 * Disable expolines and disable nobp.
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/kvm/kvm-s390.c linux-libre-5.1.21-gnu/arch/s390/kvm/kvm-s390.c
--- linux-libre-5.1-gnu/arch/s390/kvm/kvm-s390.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/kvm/kvm-s390.c	2019-07-28 02:28:39.000000000 -0400
@@ -507,6 +507,7 @@ int kvm_vm_ioctl_check_extension(struct
 		break;
 	case KVM_CAP_NR_VCPUS:
 	case KVM_CAP_MAX_VCPUS:
+	case KVM_CAP_MAX_VCPU_ID:
 		r = KVM_S390_BSCA_CPU_SLOTS;
 		if (!kvm_s390_use_sca_entries())
 			r = KVM_MAX_VCPUS;
@@ -4412,21 +4413,28 @@ void kvm_arch_commit_memory_region(struc
 				const struct kvm_memory_slot *new,
 				enum kvm_mr_change change)
 {
-	int rc;
-
-	/* If the basics of the memslot do not change, we do not want
-	 * to update the gmap. Every update causes several unnecessary
-	 * segment translation exceptions. This is usually handled just
-	 * fine by the normal fault handler + gmap, but it will also
-	 * cause faults on the prefix page of running guest CPUs.
-	 */
-	if (old->userspace_addr == mem->userspace_addr &&
-	    old->base_gfn * PAGE_SIZE == mem->guest_phys_addr &&
-	    old->npages * PAGE_SIZE == mem->memory_size)
-		return;
+	int rc = 0;
 
-	rc = gmap_map_segment(kvm->arch.gmap, mem->userspace_addr,
-		mem->guest_phys_addr, mem->memory_size);
+	switch (change) {
+	case KVM_MR_DELETE:
+		rc = gmap_unmap_segment(kvm->arch.gmap, old->base_gfn * PAGE_SIZE,
+					old->npages * PAGE_SIZE);
+		break;
+	case KVM_MR_MOVE:
+		rc = gmap_unmap_segment(kvm->arch.gmap, old->base_gfn * PAGE_SIZE,
+					old->npages * PAGE_SIZE);
+		if (rc)
+			break;
+		/* FALLTHROUGH */
+	case KVM_MR_CREATE:
+		rc = gmap_map_segment(kvm->arch.gmap, mem->userspace_addr,
+				      mem->guest_phys_addr, mem->memory_size);
+		break;
+	case KVM_MR_FLAGS_ONLY:
+		break;
+	default:
+		WARN(1, "Unknown KVM MR CHANGE: %d\n", change);
+	}
 	if (rc)
 		pr_warn("failed to commit memory region\n");
 	return;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/Makefile linux-libre-5.1.21-gnu/arch/s390/Makefile
--- linux-libre-5.1-gnu/arch/s390/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -24,6 +24,7 @@ KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_
 KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float
 KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables
 KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding)
+KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disable-warning, address-of-packed-member)
 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g)
 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))
 UTS_MACHINE	:= s390x
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/mm/fault.c linux-libre-5.1.21-gnu/arch/s390/mm/fault.c
--- linux-libre-5.1-gnu/arch/s390/mm/fault.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/mm/fault.c	2019-07-28 02:28:39.000000000 -0400
@@ -83,7 +83,6 @@ static inline int notify_page_fault(stru
 
 /*
  * Find out which address space caused the exception.
- * Access register mode is impossible, ignore space == 3.
  */
 static inline enum fault_type get_fault_type(struct pt_regs *regs)
 {
@@ -108,6 +107,10 @@ static inline enum fault_type get_fault_
 		}
 		return VDSO_FAULT;
 	}
+	if (trans_exc_code == 1) {
+		/* access register mode, not used in the kernel */
+		return USER_FAULT;
+	}
 	/* home space exception -> access via kernel ASCE */
 	return KERNEL_FAULT;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/mm/gup.c linux-libre-5.1.21-gnu/arch/s390/mm/gup.c
--- linux-libre-5.1-gnu/arch/s390/mm/gup.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/mm/gup.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,300 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  Lockless get_user_pages_fast for s390
- *
- *  Copyright IBM Corp. 2010
- *  Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/hugetlb.h>
-#include <linux/vmstat.h>
-#include <linux/pagemap.h>
-#include <linux/rwsem.h>
-#include <asm/pgtable.h>
-
-/*
- * The performance critical leaf functions are made noinline otherwise gcc
- * inlines everything into a single function which results in too much
- * register pressure.
- */
-static inline int gup_pte_range(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
-		unsigned long end, int write, struct page **pages, int *nr)
-{
-	struct page *head, *page;
-	unsigned long mask;
-	pte_t *ptep, pte;
-
-	mask = (write ? _PAGE_PROTECT : 0) | _PAGE_INVALID | _PAGE_SPECIAL;
-
-	ptep = ((pte_t *) pmd_deref(pmd)) + pte_index(addr);
-	do {
-		pte = *ptep;
-		barrier();
-		/* Similar to the PMD case, NUMA hinting must take slow path */
-		if (pte_protnone(pte))
-			return 0;
-		if ((pte_val(pte) & mask) != 0)
-			return 0;
-		VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
-		page = pte_page(pte);
-		head = compound_head(page);
-		if (!page_cache_get_speculative(head))
-			return 0;
-		if (unlikely(pte_val(pte) != pte_val(*ptep))) {
-			put_page(head);
-			return 0;
-		}
-		VM_BUG_ON_PAGE(compound_head(page) != head, page);
-		pages[*nr] = page;
-		(*nr)++;
-
-	} while (ptep++, addr += PAGE_SIZE, addr != end);
-
-	return 1;
-}
-
-static inline int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
-		unsigned long end, int write, struct page **pages, int *nr)
-{
-	struct page *head, *page;
-	unsigned long mask;
-	int refs;
-
-	mask = (write ? _SEGMENT_ENTRY_PROTECT : 0) | _SEGMENT_ENTRY_INVALID;
-	if ((pmd_val(pmd) & mask) != 0)
-		return 0;
-	VM_BUG_ON(!pfn_valid(pmd_val(pmd) >> PAGE_SHIFT));
-
-	refs = 0;
-	head = pmd_page(pmd);
-	page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
-	do {
-		VM_BUG_ON(compound_head(page) != head);
-		pages[*nr] = page;
-		(*nr)++;
-		page++;
-		refs++;
-	} while (addr += PAGE_SIZE, addr != end);
-
-	if (!page_cache_add_speculative(head, refs)) {
-		*nr -= refs;
-		return 0;
-	}
-
-	if (unlikely(pmd_val(pmd) != pmd_val(*pmdp))) {
-		*nr -= refs;
-		while (refs--)
-			put_page(head);
-		return 0;
-	}
-
-	return 1;
-}
-
-
-static inline int gup_pmd_range(pud_t *pudp, pud_t pud, unsigned long addr,
-		unsigned long end, int write, struct page **pages, int *nr)
-{
-	unsigned long next;
-	pmd_t *pmdp, pmd;
-
-	pmdp = (pmd_t *) pudp;
-	if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3)
-		pmdp = (pmd_t *) pud_deref(pud);
-	pmdp += pmd_index(addr);
-	do {
-		pmd = *pmdp;
-		barrier();
-		next = pmd_addr_end(addr, end);
-		if (pmd_none(pmd))
-			return 0;
-		if (unlikely(pmd_large(pmd))) {
-			/*
-			 * NUMA hinting faults need to be handled in the GUP
-			 * slowpath for accounting purposes and so that they
-			 * can be serialised against THP migration.
-			 */
-			if (pmd_protnone(pmd))
-				return 0;
-			if (!gup_huge_pmd(pmdp, pmd, addr, next,
-					  write, pages, nr))
-				return 0;
-		} else if (!gup_pte_range(pmdp, pmd, addr, next,
-					  write, pages, nr))
-			return 0;
-	} while (pmdp++, addr = next, addr != end);
-
-	return 1;
-}
-
-static int gup_huge_pud(pud_t *pudp, pud_t pud, unsigned long addr,
-		unsigned long end, int write, struct page **pages, int *nr)
-{
-	struct page *head, *page;
-	unsigned long mask;
-	int refs;
-
-	mask = (write ? _REGION_ENTRY_PROTECT : 0) | _REGION_ENTRY_INVALID;
-	if ((pud_val(pud) & mask) != 0)
-		return 0;
-	VM_BUG_ON(!pfn_valid(pud_pfn(pud)));
-
-	refs = 0;
-	head = pud_page(pud);
-	page = head + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
-	do {
-		VM_BUG_ON_PAGE(compound_head(page) != head, page);
-		pages[*nr] = page;
-		(*nr)++;
-		page++;
-		refs++;
-	} while (addr += PAGE_SIZE, addr != end);
-
-	if (!page_cache_add_speculative(head, refs)) {
-		*nr -= refs;
-		return 0;
-	}
-
-	if (unlikely(pud_val(pud) != pud_val(*pudp))) {
-		*nr -= refs;
-		while (refs--)
-			put_page(head);
-		return 0;
-	}
-
-	return 1;
-}
-
-static inline int gup_pud_range(p4d_t *p4dp, p4d_t p4d, unsigned long addr,
-		unsigned long end, int write, struct page **pages, int *nr)
-{
-	unsigned long next;
-	pud_t *pudp, pud;
-
-	pudp = (pud_t *) p4dp;
-	if ((p4d_val(p4d) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R2)
-		pudp = (pud_t *) p4d_deref(p4d);
-	pudp += pud_index(addr);
-	do {
-		pud = *pudp;
-		barrier();
-		next = pud_addr_end(addr, end);
-		if (pud_none(pud))
-			return 0;
-		if (unlikely(pud_large(pud))) {
-			if (!gup_huge_pud(pudp, pud, addr, next, write, pages,
-					  nr))
-				return 0;
-		} else if (!gup_pmd_range(pudp, pud, addr, next, write, pages,
-					  nr))
-			return 0;
-	} while (pudp++, addr = next, addr != end);
-
-	return 1;
-}
-
-static inline int gup_p4d_range(pgd_t *pgdp, pgd_t pgd, unsigned long addr,
-		unsigned long end, int write, struct page **pages, int *nr)
-{
-	unsigned long next;
-	p4d_t *p4dp, p4d;
-
-	p4dp = (p4d_t *) pgdp;
-	if ((pgd_val(pgd) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R1)
-		p4dp = (p4d_t *) pgd_deref(pgd);
-	p4dp += p4d_index(addr);
-	do {
-		p4d = *p4dp;
-		barrier();
-		next = p4d_addr_end(addr, end);
-		if (p4d_none(p4d))
-			return 0;
-		if (!gup_pud_range(p4dp, p4d, addr, next, write, pages, nr))
-			return 0;
-	} while (p4dp++, addr = next, addr != end);
-
-	return 1;
-}
-
-/*
- * Like get_user_pages_fast() except its IRQ-safe in that it won't fall
- * back to the regular GUP.
- * Note a difference with get_user_pages_fast: this always returns the
- * number of pages pinned, 0 if no pages were pinned.
- */
-int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
-			  struct page **pages)
-{
-	struct mm_struct *mm = current->mm;
-	unsigned long addr, len, end;
-	unsigned long next, flags;
-	pgd_t *pgdp, pgd;
-	int nr = 0;
-
-	start &= PAGE_MASK;
-	addr = start;
-	len = (unsigned long) nr_pages << PAGE_SHIFT;
-	end = start + len;
-	if ((end <= start) || (end > mm->context.asce_limit))
-		return 0;
-	/*
-	 * local_irq_save() doesn't prevent pagetable teardown, but does
-	 * prevent the pagetables from being freed on s390.
-	 *
-	 * So long as we atomically load page table pointers versus teardown,
-	 * we can follow the address down to the the page and take a ref on it.
-	 */
-	local_irq_save(flags);
-	pgdp = pgd_offset(mm, addr);
-	do {
-		pgd = *pgdp;
-		barrier();
-		next = pgd_addr_end(addr, end);
-		if (pgd_none(pgd))
-			break;
-		if (!gup_p4d_range(pgdp, pgd, addr, next, write, pages, &nr))
-			break;
-	} while (pgdp++, addr = next, addr != end);
-	local_irq_restore(flags);
-
-	return nr;
-}
-
-/**
- * get_user_pages_fast() - pin user pages in memory
- * @start:	starting user address
- * @nr_pages:	number of pages from start to pin
- * @write:	whether pages will be written to
- * @pages:	array that receives pointers to the pages pinned.
- *		Should be at least nr_pages long.
- *
- * Attempt to pin user pages in memory without taking mm->mmap_sem.
- * If not successful, it will fall back to taking the lock and
- * calling get_user_pages().
- *
- * Returns number of pages pinned. This may be fewer than the number
- * requested. If nr_pages is 0 or negative, returns 0. If no pages
- * were pinned, returns -errno.
- */
-int get_user_pages_fast(unsigned long start, int nr_pages, int write,
-			struct page **pages)
-{
-	int nr, ret;
-
-	might_sleep();
-	start &= PAGE_MASK;
-	nr = __get_user_pages_fast(start, nr_pages, write, pages);
-	if (nr == nr_pages)
-		return nr;
-
-	/* Try to get the remaining pages with get_user_pages */
-	start += nr << PAGE_SHIFT;
-	pages += nr;
-	ret = get_user_pages_unlocked(start, nr_pages - nr, pages,
-				      write ? FOLL_WRITE : 0);
-	/* Have to be a bit careful with return values */
-	if (nr > 0)
-		ret = (ret < 0) ? nr : ret + nr;
-	return ret;
-}
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/mm/Makefile linux-libre-5.1.21-gnu/arch/s390/mm/Makefile
--- linux-libre-5.1-gnu/arch/s390/mm/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/mm/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -4,7 +4,7 @@
 #
 
 obj-y		:= init.o fault.o extmem.o mmap.o vmem.o maccess.o
-obj-y		+= page-states.o gup.o pageattr.o pgtable.o pgalloc.o
+obj-y		+= page-states.o pageattr.o pgtable.o pgalloc.o
 
 obj-$(CONFIG_CMM)		+= cmm.o
 obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/s390/mm/pgtable.c linux-libre-5.1.21-gnu/arch/s390/mm/pgtable.c
--- linux-libre-5.1-gnu/arch/s390/mm/pgtable.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/s390/mm/pgtable.c	2019-07-28 02:28:39.000000000 -0400
@@ -410,6 +410,7 @@ static inline pmd_t pmdp_flush_lazy(stru
 	return old;
 }
 
+#ifdef CONFIG_PGSTE
 static pmd_t *pmd_alloc_map(struct mm_struct *mm, unsigned long addr)
 {
 	pgd_t *pgd;
@@ -427,6 +428,7 @@ static pmd_t *pmd_alloc_map(struct mm_st
 	pmd = pmd_alloc(mm, pud, addr);
 	return pmd;
 }
+#endif
 
 pmd_t pmdp_xchg_direct(struct mm_struct *mm, unsigned long addr,
 		       pmd_t *pmdp, pmd_t new)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/sh/include/cpu-sh4/cpu/sh7786.h linux-libre-5.1.21-gnu/arch/sh/include/cpu-sh4/cpu/sh7786.h
--- linux-libre-5.1-gnu/arch/sh/include/cpu-sh4/cpu/sh7786.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/sh/include/cpu-sh4/cpu/sh7786.h	2019-07-28 02:28:39.000000000 -0400
@@ -132,7 +132,7 @@ enum {
 
 static inline u32 sh7786_mm_sel(void)
 {
-	return __raw_readl(0xFC400020) & 0x7;
+	return __raw_readl((const volatile void __iomem *)0xFC400020) & 0x7;
 }
 
 #endif /* __CPU_SH7786_H__ */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/sparc/kernel/mdesc.c linux-libre-5.1.21-gnu/arch/sparc/kernel/mdesc.c
--- linux-libre-5.1-gnu/arch/sparc/kernel/mdesc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/sparc/kernel/mdesc.c	2019-07-28 02:28:39.000000000 -0400
@@ -356,6 +356,8 @@ static int get_vdev_port_node_info(struc
 
 	node_info->vdev_port.id = *idp;
 	node_info->vdev_port.name = kstrdup_const(name, GFP_KERNEL);
+	if (!node_info->vdev_port.name)
+		return -1;
 	node_info->vdev_port.parent_cfg_hdl = *parent_cfg_hdlp;
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/sparc/kernel/perf_event.c linux-libre-5.1.21-gnu/arch/sparc/kernel/perf_event.c
--- linux-libre-5.1-gnu/arch/sparc/kernel/perf_event.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/sparc/kernel/perf_event.c	2019-07-28 02:28:39.000000000 -0400
@@ -891,6 +891,10 @@ static int sparc_perf_event_set_period(s
 	s64 period = hwc->sample_period;
 	int ret = 0;
 
+	/* The period may have been changed by PERF_EVENT_IOC_PERIOD */
+	if (unlikely(period != hwc->last_period))
+		left = period - (hwc->last_period - left);
+
 	if (unlikely(left <= -period)) {
 		left = period;
 		local64_set(&hwc->period_left, left);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/sparc/mm/ultra.S linux-libre-5.1.21-gnu/arch/sparc/mm/ultra.S
--- linux-libre-5.1-gnu/arch/sparc/mm/ultra.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/sparc/mm/ultra.S	2019-07-28 02:28:39.000000000 -0400
@@ -587,7 +587,7 @@ xcall_flush_tlb_kernel_range:	/* 44 insn
 	sub		%g7, %g1, %g3
 	srlx		%g3, 18, %g2
 	brnz,pn		%g2, 2f
-	 add		%g2, 1, %g2
+	 sethi		%hi(PAGE_SIZE), %g2
 	sub		%g3, %g2, %g3
 	or		%g1, 0x20, %g1		! Nucleus
 1:	stxa		%g0, [%g1 + %g3] ASI_DMMU_DEMAP
@@ -751,7 +751,7 @@ __cheetah_xcall_flush_tlb_kernel_range:
 	sub		%g7, %g1, %g3
 	srlx		%g3, 18, %g2
 	brnz,pn		%g2, 2f
-	 add		%g2, 1, %g2
+	 sethi		%hi(PAGE_SIZE), %g2
 	sub		%g3, %g2, %g3
 	or		%g1, 0x20, %g1		! Nucleus
 1:	stxa		%g0, [%g1 + %g3] ASI_DMMU_DEMAP
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/um/include/asm/mmu_context.h linux-libre-5.1.21-gnu/arch/um/include/asm/mmu_context.h
--- linux-libre-5.1-gnu/arch/um/include/asm/mmu_context.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/um/include/asm/mmu_context.h	2019-07-28 02:28:39.000000000 -0400
@@ -22,7 +22,6 @@ static inline int arch_dup_mmap(struct m
 }
 extern void arch_exit_mmap(struct mm_struct *mm);
 static inline void arch_unmap(struct mm_struct *mm,
-			struct vm_area_struct *vma,
 			unsigned long start, unsigned long end)
 {
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/um/kernel/time.c linux-libre-5.1.21-gnu/arch/um/kernel/time.c
--- linux-libre-5.1-gnu/arch/um/kernel/time.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/um/kernel/time.c	2019-07-28 02:28:39.000000000 -0400
@@ -56,7 +56,7 @@ static int itimer_one_shot(struct clock_
 static struct clock_event_device timer_clockevent = {
 	.name			= "posix-timer",
 	.rating			= 250,
-	.cpumask		= cpu_all_mask,
+	.cpumask		= cpu_possible_mask,
 	.features		= CLOCK_EVT_FEAT_PERIODIC |
 				  CLOCK_EVT_FEAT_ONESHOT,
 	.set_state_shutdown	= itimer_shutdown,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/unicore32/include/asm/mmu_context.h linux-libre-5.1.21-gnu/arch/unicore32/include/asm/mmu_context.h
--- linux-libre-5.1-gnu/arch/unicore32/include/asm/mmu_context.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/unicore32/include/asm/mmu_context.h	2019-07-28 02:28:39.000000000 -0400
@@ -88,7 +88,6 @@ static inline int arch_dup_mmap(struct m
 }
 
 static inline void arch_unmap(struct mm_struct *mm,
-			struct vm_area_struct *vma,
 			unsigned long start, unsigned long end)
 {
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/crypto/crct10dif-pclmul_glue.c linux-libre-5.1.21-gnu/arch/x86/crypto/crct10dif-pclmul_glue.c
--- linux-libre-5.1-gnu/arch/x86/crypto/crct10dif-pclmul_glue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/crypto/crct10dif-pclmul_glue.c	2019-07-28 02:28:39.000000000 -0400
@@ -70,15 +70,14 @@ static int chksum_final(struct shash_des
 	return 0;
 }
 
-static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len,
-			u8 *out)
+static int __chksum_finup(__u16 crc, const u8 *data, unsigned int len, u8 *out)
 {
 	if (len >= 16 && irq_fpu_usable()) {
 		kernel_fpu_begin();
-		*(__u16 *)out = crc_t10dif_pcl(*crcp, data, len);
+		*(__u16 *)out = crc_t10dif_pcl(crc, data, len);
 		kernel_fpu_end();
 	} else
-		*(__u16 *)out = crc_t10dif_generic(*crcp, data, len);
+		*(__u16 *)out = crc_t10dif_generic(crc, data, len);
 	return 0;
 }
 
@@ -87,15 +86,13 @@ static int chksum_finup(struct shash_des
 {
 	struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
 
-	return __chksum_finup(&ctx->crc, data, len, out);
+	return __chksum_finup(ctx->crc, data, len, out);
 }
 
 static int chksum_digest(struct shash_desc *desc, const u8 *data,
 			 unsigned int length, u8 *out)
 {
-	struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
-
-	return __chksum_finup(&ctx->crc, data, length, out);
+	return __chksum_finup(0, data, length, out);
 }
 
 static struct shash_alg alg = {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/entry/common.c linux-libre-5.1.21-gnu/arch/x86/entry/common.c
--- linux-libre-5.1-gnu/arch/x86/entry/common.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/entry/common.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,6 +31,7 @@
 #include <asm/vdso.h>
 #include <linux/uaccess.h>
 #include <asm/cpufeature.h>
+#include <asm/nospec-branch.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/syscalls.h>
@@ -212,6 +213,8 @@ __visible inline void prepare_exit_to_us
 #endif
 
 	user_enter_irqoff();
+
+	mds_user_clear_cpu_buffers();
 }
 
 #define SYSCALL_EXIT_WORK_FLAGS				\
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/entry/entry_32.S linux-libre-5.1.21-gnu/arch/x86/entry/entry_32.S
--- linux-libre-5.1-gnu/arch/x86/entry/entry_32.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/entry/entry_32.S	2019-07-28 02:28:39.000000000 -0400
@@ -650,6 +650,7 @@ ENTRY(__switch_to_asm)
 	pushl	%ebx
 	pushl	%edi
 	pushl	%esi
+	pushfl
 
 	/* switch stack */
 	movl	%esp, TASK_threadsp(%eax)
@@ -672,6 +673,7 @@ ENTRY(__switch_to_asm)
 #endif
 
 	/* restore callee-saved registers */
+	popfl
 	popl	%esi
 	popl	%edi
 	popl	%ebx
@@ -1103,6 +1105,30 @@ ENTRY(irq_entries_start)
     .endr
 END(irq_entries_start)
 
+#ifdef CONFIG_X86_LOCAL_APIC
+	.align 8
+ENTRY(spurious_entries_start)
+    vector=FIRST_SYSTEM_VECTOR
+    .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
+	pushl	$(~vector+0x80)			/* Note: always in signed byte range */
+    vector=vector+1
+	jmp	common_spurious
+	.align	8
+    .endr
+END(spurious_entries_start)
+
+common_spurious:
+	ASM_CLAC
+	addl	$-0x80, (%esp)			/* Adjust vector into the [-256, -1] range */
+	SAVE_ALL switch_stacks=1
+	ENCODE_FRAME_POINTER
+	TRACE_IRQS_OFF
+	movl	%esp, %eax
+	call	smp_spurious_interrupt
+	jmp	ret_from_intr
+ENDPROC(common_spurious)
+#endif
+
 /*
  * the CPU automatically disables interrupts when executing an IRQ vector,
  * so IRQ-flags tracing has to follow that:
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/entry/entry_64.S linux-libre-5.1.21-gnu/arch/x86/entry/entry_64.S
--- linux-libre-5.1-gnu/arch/x86/entry/entry_64.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/entry/entry_64.S	2019-07-28 02:28:39.000000000 -0400
@@ -291,6 +291,7 @@ ENTRY(__switch_to_asm)
 	pushq	%r13
 	pushq	%r14
 	pushq	%r15
+	pushfq
 
 	/* switch stack */
 	movq	%rsp, TASK_threadsp(%rdi)
@@ -313,6 +314,7 @@ ENTRY(__switch_to_asm)
 #endif
 
 	/* restore callee-saved registers */
+	popfq
 	popq	%r15
 	popq	%r14
 	popq	%r13
@@ -375,6 +377,18 @@ ENTRY(irq_entries_start)
     .endr
 END(irq_entries_start)
 
+	.align 8
+ENTRY(spurious_entries_start)
+    vector=FIRST_SYSTEM_VECTOR
+    .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
+	UNWIND_HINT_IRET_REGS
+	pushq	$(~vector+0x80)			/* Note: always in signed byte range */
+	jmp	common_spurious
+	.align	8
+	vector=vector+1
+    .endr
+END(spurious_entries_start)
+
 .macro DEBUG_ENTRY_ASSERT_IRQS_OFF
 #ifdef CONFIG_DEBUG_ENTRY
 	pushq %rax
@@ -571,10 +585,20 @@ _ASM_NOKPROBE(interrupt_entry)
 
 /* Interrupt entry/exit. */
 
-	/*
-	 * The interrupt stubs push (~vector+0x80) onto the stack and
-	 * then jump to common_interrupt.
-	 */
+/*
+ * The interrupt stubs push (~vector+0x80) onto the stack and
+ * then jump to common_spurious/interrupt.
+ */
+common_spurious:
+	addq	$-0x80, (%rsp)			/* Adjust vector to [-256, -1] range */
+	call	interrupt_entry
+	UNWIND_HINT_REGS indirect=1
+	call	smp_spurious_interrupt		/* rdi points to pt_regs */
+	jmp	ret_from_intr
+END(common_spurious)
+_ASM_NOKPROBE(common_spurious)
+
+/* common_interrupt is a hotpath. Align it */
 	.p2align CONFIG_X86_L1_CACHE_SHIFT
 common_interrupt:
 	addq	$-0x80, (%rsp)			/* Adjust vector to [-256, -1] range */
@@ -879,7 +903,7 @@ apicinterrupt IRQ_WORK_VECTOR			irq_work
  * @paranoid == 2 is special: the stub will never switch stacks.  This is for
  * #DF: if the thread stack is somehow unusable, we'll still get a useful OOPS.
  */
-.macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1
+.macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1 create_gap=0
 ENTRY(\sym)
 	UNWIND_HINT_IRET_REGS offset=\has_error_code*8
 
@@ -899,6 +923,20 @@ ENTRY(\sym)
 	jnz	.Lfrom_usermode_switch_stack_\@
 	.endif
 
+	.if \create_gap == 1
+	/*
+	 * If coming from kernel space, create a 6-word gap to allow the
+	 * int3 handler to emulate a call instruction.
+	 */
+	testb	$3, CS-ORIG_RAX(%rsp)
+	jnz	.Lfrom_usermode_no_gap_\@
+	.rept	6
+	pushq	5*8(%rsp)
+	.endr
+	UNWIND_HINT_IRET_REGS offset=8
+.Lfrom_usermode_no_gap_\@:
+	.endif
+
 	.if \paranoid
 	call	paranoid_entry
 	.else
@@ -1130,7 +1168,7 @@ apicinterrupt3 HYPERV_STIMER0_VECTOR \
 #endif /* CONFIG_HYPERV */
 
 idtentry debug			do_debug		has_error_code=0	paranoid=1 shift_ist=DEBUG_STACK
-idtentry int3			do_int3			has_error_code=0
+idtentry int3			do_int3			has_error_code=0	create_gap=1
 idtentry stack_segment		do_stack_segment	has_error_code=1
 
 #ifdef CONFIG_XEN_PV
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/entry/vdso/vclock_gettime.c linux-libre-5.1.21-gnu/arch/x86/entry/vdso/vclock_gettime.c
--- linux-libre-5.1-gnu/arch/x86/entry/vdso/vclock_gettime.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/entry/vdso/vclock_gettime.c	2019-07-28 02:28:39.000000000 -0400
@@ -128,13 +128,24 @@ notrace static inline u64 vgetcyc(int mo
 {
 	if (mode == VCLOCK_TSC)
 		return (u64)rdtsc_ordered();
+
+	/*
+	 * For any memory-mapped vclock type, we need to make sure that gcc
+	 * doesn't cleverly hoist a load before the mode check.  Otherwise we
+	 * might end up touching the memory-mapped page even if the vclock in
+	 * question isn't enabled, which will segfault.  Hence the barriers.
+	 */
 #ifdef CONFIG_PARAVIRT_CLOCK
-	else if (mode == VCLOCK_PVCLOCK)
+	if (mode == VCLOCK_PVCLOCK) {
+		barrier();
 		return vread_pvclock();
+	}
 #endif
 #ifdef CONFIG_HYPERV_TSCPAGE
-	else if (mode == VCLOCK_HVCLOCK)
+	if (mode == VCLOCK_HVCLOCK) {
+		barrier();
 		return vread_hvclock();
+	}
 #endif
 	return U64_MAX;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/events/amd/uncore.c linux-libre-5.1.21-gnu/arch/x86/events/amd/uncore.c
--- linux-libre-5.1-gnu/arch/x86/events/amd/uncore.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/events/amd/uncore.c	2019-07-28 02:28:39.000000000 -0400
@@ -205,15 +205,22 @@ static int amd_uncore_event_init(struct
 	hwc->config = event->attr.config & AMD64_RAW_EVENT_MASK_NB;
 	hwc->idx = -1;
 
+	if (event->cpu < 0)
+		return -EINVAL;
+
 	/*
 	 * SliceMask and ThreadMask need to be set for certain L3 events in
 	 * Family 17h. For other events, the two fields do not affect the count.
 	 */
-	if (l3_mask)
-		hwc->config |= (AMD64_L3_SLICE_MASK | AMD64_L3_THREAD_MASK);
+	if (l3_mask && is_llc_event(event)) {
+		int thread = 2 * (cpu_data(event->cpu).cpu_core_id % 4);
 
-	if (event->cpu < 0)
-		return -EINVAL;
+		if (smp_num_siblings > 1)
+			thread += cpu_data(event->cpu).apicid & 1;
+
+		hwc->config |= (1ULL << (AMD64_L3_THREAD_SHIFT + thread) &
+				AMD64_L3_THREAD_MASK) | AMD64_L3_SLICE_MASK;
+	}
 
 	uncore = event_to_amd_uncore(event);
 	if (!uncore)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/events/intel/core.c linux-libre-5.1.21-gnu/arch/x86/events/intel/core.c
--- linux-libre-5.1-gnu/arch/x86/events/intel/core.c	2019-05-05 21:18:53.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/events/intel/core.c	2019-07-28 13:19:50.000000000 -0400
@@ -19,6 +19,7 @@
 #include <asm/intel-family.h>
 #include <asm/apic.h>
 #include <asm/cpu_device_id.h>
+#include <asm/hypervisor.h>
 
 #include "../perf_event.h"
 
@@ -2091,12 +2092,10 @@ static void intel_pmu_disable_event(stru
 	cpuc->intel_ctrl_host_mask &= ~(1ull << hwc->idx);
 	cpuc->intel_cp_status &= ~(1ull << hwc->idx);
 
-	if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) {
+	if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL))
 		intel_pmu_disable_fixed(hwc);
-		return;
-	}
-
-	x86_pmu_disable_event(event);
+	else
+		x86_pmu_disable_event(event);
 
 	/*
 	 * Needs to be called after x86_pmu_disable_event,
@@ -3189,7 +3188,7 @@ static int intel_pmu_hw_config(struct pe
 		return ret;
 
 	if (event->attr.precise_ip) {
-		if (!(event->attr.freq || event->attr.wakeup_events)) {
+		if (!(event->attr.freq || (event->attr.wakeup_events && !event->attr.watermark))) {
 			event->hw.flags |= PERF_X86_EVENT_AUTO_RELOAD;
 			if (!(event->attr.sample_type &
 			      ~intel_pmu_large_pebs_flags(event)))
@@ -3928,6 +3927,13 @@ static bool check_msr(unsigned long msr,
 	u64 val_old, val_new, val_tmp;
 
 	/*
+	 * Disable the check for real HW, so we don't
+	 * mess with potentionaly enabled registers:
+	 */
+	if (hypervisor_is_type(X86_HYPER_NATIVE))
+		return true;
+
+	/*
 	 * Read the current value, change it and read it back to see if it
 	 * matches, this is needed to detect certain hardware emulators
 	 * (qemu/kvm) that don't trap on the MSR access and always return 0s.
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/events/intel/cstate.c linux-libre-5.1.21-gnu/arch/x86/events/intel/cstate.c
--- linux-libre-5.1-gnu/arch/x86/events/intel/cstate.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/events/intel/cstate.c	2019-07-28 02:28:39.000000000 -0400
@@ -578,6 +578,8 @@ static const struct x86_cpu_id intel_cst
 	X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_X, glm_cstates),
 
 	X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_PLUS, glm_cstates),
+
+	X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE_MOBILE, snb_cstates),
 	{ },
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/events/intel/ds.c linux-libre-5.1.21-gnu/arch/x86/events/intel/ds.c
--- linux-libre-5.1-gnu/arch/x86/events/intel/ds.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/events/intel/ds.c	2019-07-28 02:28:39.000000000 -0400
@@ -684,7 +684,7 @@ struct event_constraint intel_core2_pebs
 	INTEL_FLAGS_UEVENT_CONSTRAINT(0x1fc7, 0x1), /* SIMD_INST_RETURED.ANY */
 	INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0x1),    /* MEM_LOAD_RETIRED.* */
 	/* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x01),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x01),
 	EVENT_CONSTRAINT_END
 };
 
@@ -693,7 +693,7 @@ struct event_constraint intel_atom_pebs_
 	INTEL_FLAGS_UEVENT_CONSTRAINT(0x00c5, 0x1), /* MISPREDICTED_BRANCH_RETIRED */
 	INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0x1),    /* MEM_LOAD_RETIRED.* */
 	/* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x01),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x01),
 	/* Allow all events as PEBS with no flags */
 	INTEL_ALL_EVENT_CONSTRAINT(0, 0x1),
 	EVENT_CONSTRAINT_END
@@ -701,7 +701,7 @@ struct event_constraint intel_atom_pebs_
 
 struct event_constraint intel_slm_pebs_event_constraints[] = {
 	/* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x1),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x1),
 	/* Allow all events as PEBS with no flags */
 	INTEL_ALL_EVENT_CONSTRAINT(0, 0x1),
 	EVENT_CONSTRAINT_END
@@ -726,7 +726,7 @@ struct event_constraint intel_nehalem_pe
 	INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0xf),    /* MEM_LOAD_RETIRED.* */
 	INTEL_FLAGS_EVENT_CONSTRAINT(0xf7, 0xf),    /* FP_ASSIST.* */
 	/* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x0f),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x0f),
 	EVENT_CONSTRAINT_END
 };
 
@@ -743,7 +743,7 @@ struct event_constraint intel_westmere_p
 	INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0xf),    /* MEM_LOAD_RETIRED.* */
 	INTEL_FLAGS_EVENT_CONSTRAINT(0xf7, 0xf),    /* FP_ASSIST.* */
 	/* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x0f),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x0f),
 	EVENT_CONSTRAINT_END
 };
 
@@ -752,7 +752,7 @@ struct event_constraint intel_snb_pebs_e
 	INTEL_PLD_CONSTRAINT(0x01cd, 0x8),    /* MEM_TRANS_RETIRED.LAT_ABOVE_THR */
 	INTEL_PST_CONSTRAINT(0x02cd, 0x8),    /* MEM_TRANS_RETIRED.PRECISE_STORES */
 	/* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c2, 0xf),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c2, 0xf),
         INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf),    /* MEM_UOP_RETIRED.* */
         INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf),    /* MEM_LOAD_UOPS_RETIRED.* */
         INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf),    /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
@@ -767,9 +767,9 @@ struct event_constraint intel_ivb_pebs_e
         INTEL_PLD_CONSTRAINT(0x01cd, 0x8),    /* MEM_TRANS_RETIRED.LAT_ABOVE_THR */
 	INTEL_PST_CONSTRAINT(0x02cd, 0x8),    /* MEM_TRANS_RETIRED.PRECISE_STORES */
 	/* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c2, 0xf),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c2, 0xf),
 	/* INST_RETIRED.PREC_DIST, inv=1, cmask=16 (cycles:ppp). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c0, 0x2),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c0, 0x2),
 	INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf),    /* MEM_UOP_RETIRED.* */
 	INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf),    /* MEM_LOAD_UOPS_RETIRED.* */
 	INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf),    /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
@@ -783,9 +783,9 @@ struct event_constraint intel_hsw_pebs_e
 	INTEL_FLAGS_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
 	INTEL_PLD_CONSTRAINT(0x01cd, 0xf),    /* MEM_TRANS_RETIRED.* */
 	/* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c2, 0xf),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c2, 0xf),
 	/* INST_RETIRED.PREC_DIST, inv=1, cmask=16 (cycles:ppp). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c0, 0x2),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c0, 0x2),
 	INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_NA(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
 	INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(0x11d0, 0xf), /* MEM_UOPS_RETIRED.STLB_MISS_LOADS */
 	INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(0x21d0, 0xf), /* MEM_UOPS_RETIRED.LOCK_LOADS */
@@ -806,9 +806,9 @@ struct event_constraint intel_bdw_pebs_e
 	INTEL_FLAGS_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
 	INTEL_PLD_CONSTRAINT(0x01cd, 0xf),    /* MEM_TRANS_RETIRED.* */
 	/* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c2, 0xf),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c2, 0xf),
 	/* INST_RETIRED.PREC_DIST, inv=1, cmask=16 (cycles:ppp). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c0, 0x2),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c0, 0x2),
 	INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_NA(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
 	INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x11d0, 0xf), /* MEM_UOPS_RETIRED.STLB_MISS_LOADS */
 	INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x21d0, 0xf), /* MEM_UOPS_RETIRED.LOCK_LOADS */
@@ -829,9 +829,9 @@ struct event_constraint intel_bdw_pebs_e
 struct event_constraint intel_skl_pebs_event_constraints[] = {
 	INTEL_FLAGS_UEVENT_CONSTRAINT(0x1c0, 0x2),	/* INST_RETIRED.PREC_DIST */
 	/* INST_RETIRED.PREC_DIST, inv=1, cmask=16 (cycles:ppp). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c0, 0x2),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c0, 0x2),
 	/* INST_RETIRED.TOTAL_CYCLES_PS (inv=1, cmask=16) (cycles:p). */
-	INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x0f),
+	INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x0f),
 	INTEL_PLD_CONSTRAINT(0x1cd, 0xf),		      /* MEM_TRANS_RETIRED.* */
 	INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x11d0, 0xf), /* MEM_INST_RETIRED.STLB_MISS_LOADS */
 	INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x12d0, 0xf), /* MEM_INST_RETIRED.STLB_MISS_STORES */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/events/intel/rapl.c linux-libre-5.1.21-gnu/arch/x86/events/intel/rapl.c
--- linux-libre-5.1-gnu/arch/x86/events/intel/rapl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/events/intel/rapl.c	2019-07-28 02:28:39.000000000 -0400
@@ -775,6 +775,8 @@ static const struct x86_cpu_id rapl_cpu_
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT_X, hsw_rapl_init),
 
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT_PLUS, hsw_rapl_init),
+
+	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ICELAKE_MOBILE,  skl_rapl_init),
 	{},
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/events/intel/uncore.h linux-libre-5.1.21-gnu/arch/x86/events/intel/uncore.h
--- linux-libre-5.1-gnu/arch/x86/events/intel/uncore.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/events/intel/uncore.h	2019-07-28 02:28:39.000000000 -0400
@@ -419,6 +419,16 @@ static inline bool is_freerunning_event(
 	       (((cfg >> 8) & 0xff) >= UNCORE_FREERUNNING_UMASK_START);
 }
 
+/* Check and reject invalid config */
+static inline int uncore_freerunning_hw_config(struct intel_uncore_box *box,
+					       struct perf_event *event)
+{
+	if (is_freerunning_event(event))
+		return 0;
+
+	return -EINVAL;
+}
+
 static inline void uncore_disable_box(struct intel_uncore_box *box)
 {
 	if (box->pmu->type->ops->disable_box)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/events/intel/uncore_snbep.c linux-libre-5.1.21-gnu/arch/x86/events/intel/uncore_snbep.c
--- linux-libre-5.1-gnu/arch/x86/events/intel/uncore_snbep.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/events/intel/uncore_snbep.c	2019-07-28 02:28:39.000000000 -0400
@@ -3585,6 +3585,7 @@ static struct uncore_event_desc skx_unco
 
 static struct intel_uncore_ops skx_uncore_iio_freerunning_ops = {
 	.read_counter		= uncore_msr_read_counter,
+	.hw_config		= uncore_freerunning_hw_config,
 };
 
 static struct attribute *skx_uncore_iio_freerunning_formats_attr[] = {
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/events/msr.c linux-libre-5.1.21-gnu/arch/x86/events/msr.c
--- linux-libre-5.1-gnu/arch/x86/events/msr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/events/msr.c	2019-07-28 02:28:39.000000000 -0400
@@ -89,6 +89,7 @@ static bool test_intel(int idx)
 	case INTEL_FAM6_SKYLAKE_X:
 	case INTEL_FAM6_KABYLAKE_MOBILE:
 	case INTEL_FAM6_KABYLAKE_DESKTOP:
+	case INTEL_FAM6_ICELAKE_MOBILE:
 		if (idx == PERF_MSR_SMI || idx == PERF_MSR_PPERF)
 			return true;
 		break;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/ia32/ia32_signal.c linux-libre-5.1.21-gnu/arch/x86/ia32/ia32_signal.c
--- linux-libre-5.1-gnu/arch/x86/ia32/ia32_signal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/ia32/ia32_signal.c	2019-07-28 02:28:39.000000000 -0400
@@ -61,9 +61,8 @@
 } while (0)
 
 #define RELOAD_SEG(seg)		{		\
-	unsigned int pre = GET_SEG(seg);	\
+	unsigned int pre = (seg) | 3;		\
 	unsigned int cur = get_user_seg(seg);	\
-	pre |= 3;				\
 	if (pre != cur)				\
 		set_user_seg(seg, pre);		\
 }
@@ -72,6 +71,7 @@ static int ia32_restore_sigcontext(struc
 				   struct sigcontext_32 __user *sc)
 {
 	unsigned int tmpflags, err = 0;
+	u16 gs, fs, es, ds;
 	void __user *buf;
 	u32 tmp;
 
@@ -79,16 +79,10 @@ static int ia32_restore_sigcontext(struc
 	current->restart_block.fn = do_no_restart_syscall;
 
 	get_user_try {
-		/*
-		 * Reload fs and gs if they have changed in the signal
-		 * handler.  This does not handle long fs/gs base changes in
-		 * the handler, but does not clobber them at least in the
-		 * normal case.
-		 */
-		RELOAD_SEG(gs);
-		RELOAD_SEG(fs);
-		RELOAD_SEG(ds);
-		RELOAD_SEG(es);
+		gs = GET_SEG(gs);
+		fs = GET_SEG(fs);
+		ds = GET_SEG(ds);
+		es = GET_SEG(es);
 
 		COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
 		COPY(dx); COPY(cx); COPY(ip); COPY(ax);
@@ -106,6 +100,17 @@ static int ia32_restore_sigcontext(struc
 		buf = compat_ptr(tmp);
 	} get_user_catch(err);
 
+	/*
+	 * Reload fs and gs if they have changed in the signal
+	 * handler.  This does not handle long fs/gs base changes in
+	 * the handler, but does not clobber them at least in the
+	 * normal case.
+	 */
+	RELOAD_SEG(gs);
+	RELOAD_SEG(fs);
+	RELOAD_SEG(ds);
+	RELOAD_SEG(es);
+
 	err |= fpu__restore_sig(buf, 1);
 
 	force_iret();
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/atomic64_64.h linux-libre-5.1.21-gnu/arch/x86/include/asm/atomic64_64.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/atomic64_64.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/atomic64_64.h	2019-07-28 02:28:39.000000000 -0400
@@ -45,7 +45,7 @@ static __always_inline void arch_atomic6
 {
 	asm volatile(LOCK_PREFIX "addq %1,%0"
 		     : "=m" (v->counter)
-		     : "er" (i), "m" (v->counter));
+		     : "er" (i), "m" (v->counter) : "memory");
 }
 
 /**
@@ -59,7 +59,7 @@ static inline void arch_atomic64_sub(lon
 {
 	asm volatile(LOCK_PREFIX "subq %1,%0"
 		     : "=m" (v->counter)
-		     : "er" (i), "m" (v->counter));
+		     : "er" (i), "m" (v->counter) : "memory");
 }
 
 /**
@@ -87,7 +87,7 @@ static __always_inline void arch_atomic6
 {
 	asm volatile(LOCK_PREFIX "incq %0"
 		     : "=m" (v->counter)
-		     : "m" (v->counter));
+		     : "m" (v->counter) : "memory");
 }
 #define arch_atomic64_inc arch_atomic64_inc
 
@@ -101,7 +101,7 @@ static __always_inline void arch_atomic6
 {
 	asm volatile(LOCK_PREFIX "decq %0"
 		     : "=m" (v->counter)
-		     : "m" (v->counter));
+		     : "m" (v->counter) : "memory");
 }
 #define arch_atomic64_dec arch_atomic64_dec
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/atomic.h linux-libre-5.1.21-gnu/arch/x86/include/asm/atomic.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/atomic.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/atomic.h	2019-07-28 02:28:39.000000000 -0400
@@ -54,7 +54,7 @@ static __always_inline void arch_atomic_
 {
 	asm volatile(LOCK_PREFIX "addl %1,%0"
 		     : "+m" (v->counter)
-		     : "ir" (i));
+		     : "ir" (i) : "memory");
 }
 
 /**
@@ -68,7 +68,7 @@ static __always_inline void arch_atomic_
 {
 	asm volatile(LOCK_PREFIX "subl %1,%0"
 		     : "+m" (v->counter)
-		     : "ir" (i));
+		     : "ir" (i) : "memory");
 }
 
 /**
@@ -95,7 +95,7 @@ static __always_inline bool arch_atomic_
 static __always_inline void arch_atomic_inc(atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "incl %0"
-		     : "+m" (v->counter));
+		     : "+m" (v->counter) :: "memory");
 }
 #define arch_atomic_inc arch_atomic_inc
 
@@ -108,7 +108,7 @@ static __always_inline void arch_atomic_
 static __always_inline void arch_atomic_dec(atomic_t *v)
 {
 	asm volatile(LOCK_PREFIX "decl %0"
-		     : "+m" (v->counter));
+		     : "+m" (v->counter) :: "memory");
 }
 #define arch_atomic_dec arch_atomic_dec
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/barrier.h linux-libre-5.1.21-gnu/arch/x86/include/asm/barrier.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/barrier.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/barrier.h	2019-07-28 02:28:39.000000000 -0400
@@ -80,8 +80,8 @@ do {									\
 })
 
 /* Atomic operations are already serializing on x86 */
-#define __smp_mb__before_atomic()	barrier()
-#define __smp_mb__after_atomic()	barrier()
+#define __smp_mb__before_atomic()	do { } while (0)
+#define __smp_mb__after_atomic()	do { } while (0)
 
 #include <asm-generic/barrier.h>
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/cpufeatures.h linux-libre-5.1.21-gnu/arch/x86/include/asm/cpufeatures.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/cpufeatures.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/cpufeatures.h	2019-07-28 02:28:39.000000000 -0400
@@ -239,12 +239,14 @@
 #define X86_FEATURE_BMI1		( 9*32+ 3) /* 1st group bit manipulation extensions */
 #define X86_FEATURE_HLE			( 9*32+ 4) /* Hardware Lock Elision */
 #define X86_FEATURE_AVX2		( 9*32+ 5) /* AVX2 instructions */
+#define X86_FEATURE_FDP_EXCPTN_ONLY	( 9*32+ 6) /* "" FPU data pointer updated only on x87 exceptions */
 #define X86_FEATURE_SMEP		( 9*32+ 7) /* Supervisor Mode Execution Protection */
 #define X86_FEATURE_BMI2		( 9*32+ 8) /* 2nd group bit manipulation extensions */
 #define X86_FEATURE_ERMS		( 9*32+ 9) /* Enhanced REP MOVSB/STOSB instructions */
 #define X86_FEATURE_INVPCID		( 9*32+10) /* Invalidate Processor Context ID */
 #define X86_FEATURE_RTM			( 9*32+11) /* Restricted Transactional Memory */
 #define X86_FEATURE_CQM			( 9*32+12) /* Cache QoS Monitoring */
+#define X86_FEATURE_ZERO_FCS_FDS	( 9*32+13) /* "" Zero out FPU CS and FPU DS */
 #define X86_FEATURE_MPX			( 9*32+14) /* Memory Protection Extension */
 #define X86_FEATURE_RDT_A		( 9*32+15) /* Resource Director Technology Allocation */
 #define X86_FEATURE_AVX512F		( 9*32+16) /* AVX-512 Foundation */
@@ -344,6 +346,7 @@
 /* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
 #define X86_FEATURE_AVX512_4VNNIW	(18*32+ 2) /* AVX-512 Neural Network Instructions */
 #define X86_FEATURE_AVX512_4FMAPS	(18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
+#define X86_FEATURE_MD_CLEAR		(18*32+10) /* VERW clears CPU buffers */
 #define X86_FEATURE_TSX_FORCE_ABORT	(18*32+13) /* "" TSX_FORCE_ABORT */
 #define X86_FEATURE_PCONFIG		(18*32+18) /* Intel PCONFIG */
 #define X86_FEATURE_SPEC_CTRL		(18*32+26) /* "" Speculation Control (IBRS + IBPB) */
@@ -382,5 +385,7 @@
 #define X86_BUG_SPECTRE_V2		X86_BUG(16) /* CPU is affected by Spectre variant 2 attack with indirect branches */
 #define X86_BUG_SPEC_STORE_BYPASS	X86_BUG(17) /* CPU is affected by speculative store bypass attack */
 #define X86_BUG_L1TF			X86_BUG(18) /* CPU is affected by L1 Terminal Fault */
+#define X86_BUG_MDS			X86_BUG(19) /* CPU is affected by Microarchitectural data sampling */
+#define X86_BUG_MSBDS_ONLY		X86_BUG(20) /* CPU is only affected by the  MSDBS variant of BUG_MDS */
 
 #endif /* _ASM_X86_CPUFEATURES_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/hw_irq.h linux-libre-5.1.21-gnu/arch/x86/include/asm/hw_irq.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/hw_irq.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/hw_irq.h	2019-07-28 02:28:39.000000000 -0400
@@ -150,8 +150,11 @@ extern char irq_entries_start[];
 #define trace_irq_entries_start irq_entries_start
 #endif
 
+extern char spurious_entries_start[];
+
 #define VECTOR_UNUSED		NULL
-#define VECTOR_RETRIGGERED	((void *)~0UL)
+#define VECTOR_SHUTDOWN		((void *)~0UL)
+#define VECTOR_RETRIGGERED	((void *)~1UL)
 
 typedef struct irq_desc* vector_irq_t[NR_VECTORS];
 DECLARE_PER_CPU(vector_irq_t, vector_irq);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/intel-family.h linux-libre-5.1.21-gnu/arch/x86/include/asm/intel-family.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/intel-family.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/intel-family.h	2019-07-28 02:28:39.000000000 -0400
@@ -52,7 +52,11 @@
 
 #define INTEL_FAM6_CANNONLAKE_MOBILE	0x66
 
+#define INTEL_FAM6_ICELAKE_X		0x6A
+#define INTEL_FAM6_ICELAKE_XEON_D	0x6C
+#define INTEL_FAM6_ICELAKE_DESKTOP	0x7D
 #define INTEL_FAM6_ICELAKE_MOBILE	0x7E
+#define INTEL_FAM6_ICELAKE_NNPI		0x9D
 
 /* "Small Core" Processors (Atom) */
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/irqflags.h linux-libre-5.1.21-gnu/arch/x86/include/asm/irqflags.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/irqflags.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/irqflags.h	2019-07-28 02:28:39.000000000 -0400
@@ -6,6 +6,8 @@
 
 #ifndef __ASSEMBLY__
 
+#include <asm/nospec-branch.h>
+
 /* Provide __cpuidle; we can't safely include <linux/cpu.h> */
 #define __cpuidle __attribute__((__section__(".cpuidle.text")))
 
@@ -54,11 +56,13 @@ static inline void native_irq_enable(voi
 
 static inline __cpuidle void native_safe_halt(void)
 {
+	mds_idle_clear_cpu_buffers();
 	asm volatile("sti; hlt": : :"memory");
 }
 
 static inline __cpuidle void native_halt(void)
 {
+	mds_idle_clear_cpu_buffers();
 	asm volatile("hlt": : :"memory");
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/kvm_host.h linux-libre-5.1.21-gnu/arch/x86/include/asm/kvm_host.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/kvm_host.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/kvm_host.h	2019-07-28 02:28:39.000000000 -0400
@@ -609,15 +609,16 @@ struct kvm_vcpu_arch {
 
 	/*
 	 * QEMU userspace and the guest each have their own FPU state.
-	 * In vcpu_run, we switch between the user, maintained in the
-	 * task_struct struct, and guest FPU contexts. While running a VCPU,
-	 * the VCPU thread will have the guest FPU context.
+	 * In vcpu_run, we switch between the user and guest FPU contexts.
+	 * While running a VCPU, the VCPU thread will have the guest FPU
+	 * context.
 	 *
 	 * Note that while the PKRU state lives inside the fpu registers,
 	 * it is switched out separately at VMENTER and VMEXIT time. The
 	 * "guest_fpu" state here contains the guest FPU context, with the
 	 * host PRKU bits.
 	 */
+	struct fpu user_fpu;
 	struct fpu *guest_fpu;
 
 	u64 xcr0;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/mmu_context.h linux-libre-5.1.21-gnu/arch/x86/include/asm/mmu_context.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/mmu_context.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/mmu_context.h	2019-07-28 02:28:39.000000000 -0400
@@ -277,8 +277,8 @@ static inline void arch_bprm_mm_init(str
 	mpx_mm_init(mm);
 }
 
-static inline void arch_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
-			      unsigned long start, unsigned long end)
+static inline void arch_unmap(struct mm_struct *mm, unsigned long start,
+			      unsigned long end)
 {
 	/*
 	 * mpx_notify_unmap() goes and reads a rarely-hot
@@ -298,7 +298,7 @@ static inline void arch_unmap(struct mm_
 	 * consistently wrong.
 	 */
 	if (unlikely(cpu_feature_enabled(X86_FEATURE_MPX)))
-		mpx_notify_unmap(mm, vma, start, end);
+		mpx_notify_unmap(mm, start, end);
 }
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/mpx.h linux-libre-5.1.21-gnu/arch/x86/include/asm/mpx.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/mpx.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/mpx.h	2019-07-28 02:28:39.000000000 -0400
@@ -64,12 +64,15 @@ struct mpx_fault_info {
 };
 
 #ifdef CONFIG_X86_INTEL_MPX
-int mpx_fault_info(struct mpx_fault_info *info, struct pt_regs *regs);
-int mpx_handle_bd_fault(void);
+
+extern int mpx_fault_info(struct mpx_fault_info *info, struct pt_regs *regs);
+extern int mpx_handle_bd_fault(void);
+
 static inline int kernel_managing_mpx_tables(struct mm_struct *mm)
 {
 	return (mm->context.bd_addr != MPX_INVALID_BOUNDS_DIR);
 }
+
 static inline void mpx_mm_init(struct mm_struct *mm)
 {
 	/*
@@ -78,11 +81,10 @@ static inline void mpx_mm_init(struct mm
 	 */
 	mm->context.bd_addr = MPX_INVALID_BOUNDS_DIR;
 }
-void mpx_notify_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
-		      unsigned long start, unsigned long end);
 
-unsigned long mpx_unmapped_area_check(unsigned long addr, unsigned long len,
-		unsigned long flags);
+extern void mpx_notify_unmap(struct mm_struct *mm, unsigned long start, unsigned long end);
+extern unsigned long mpx_unmapped_area_check(unsigned long addr, unsigned long len, unsigned long flags);
+
 #else
 static inline int mpx_fault_info(struct mpx_fault_info *info, struct pt_regs *regs)
 {
@@ -100,7 +102,6 @@ static inline void mpx_mm_init(struct mm
 {
 }
 static inline void mpx_notify_unmap(struct mm_struct *mm,
-				    struct vm_area_struct *vma,
 				    unsigned long start, unsigned long end)
 {
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/msr-index.h linux-libre-5.1.21-gnu/arch/x86/include/asm/msr-index.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/msr-index.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/msr-index.h	2019-07-28 02:28:39.000000000 -0400
@@ -2,6 +2,8 @@
 #ifndef _ASM_X86_MSR_INDEX_H
 #define _ASM_X86_MSR_INDEX_H
 
+#include <linux/bits.h>
+
 /*
  * CPU model specific register (MSR) numbers.
  *
@@ -40,14 +42,14 @@
 /* Intel MSRs. Some also available on other CPUs */
 
 #define MSR_IA32_SPEC_CTRL		0x00000048 /* Speculation Control */
-#define SPEC_CTRL_IBRS			(1 << 0)   /* Indirect Branch Restricted Speculation */
+#define SPEC_CTRL_IBRS			BIT(0)	   /* Indirect Branch Restricted Speculation */
 #define SPEC_CTRL_STIBP_SHIFT		1	   /* Single Thread Indirect Branch Predictor (STIBP) bit */
-#define SPEC_CTRL_STIBP			(1 << SPEC_CTRL_STIBP_SHIFT)	/* STIBP mask */
+#define SPEC_CTRL_STIBP			BIT(SPEC_CTRL_STIBP_SHIFT)	/* STIBP mask */
 #define SPEC_CTRL_SSBD_SHIFT		2	   /* Speculative Store Bypass Disable bit */
-#define SPEC_CTRL_SSBD			(1 << SPEC_CTRL_SSBD_SHIFT)	/* Speculative Store Bypass Disable */
+#define SPEC_CTRL_SSBD			BIT(SPEC_CTRL_SSBD_SHIFT)	/* Speculative Store Bypass Disable */
 
 #define MSR_IA32_PRED_CMD		0x00000049 /* Prediction Command */
-#define PRED_CMD_IBPB			(1 << 0)   /* Indirect Branch Prediction Barrier */
+#define PRED_CMD_IBPB			BIT(0)	   /* Indirect Branch Prediction Barrier */
 
 #define MSR_PPIN_CTL			0x0000004e
 #define MSR_PPIN			0x0000004f
@@ -69,20 +71,25 @@
 #define MSR_MTRRcap			0x000000fe
 
 #define MSR_IA32_ARCH_CAPABILITIES	0x0000010a
-#define ARCH_CAP_RDCL_NO		(1 << 0)   /* Not susceptible to Meltdown */
-#define ARCH_CAP_IBRS_ALL		(1 << 1)   /* Enhanced IBRS support */
-#define ARCH_CAP_SKIP_VMENTRY_L1DFLUSH	(1 << 3)   /* Skip L1D flush on vmentry */
-#define ARCH_CAP_SSB_NO			(1 << 4)   /*
-						    * Not susceptible to Speculative Store Bypass
-						    * attack, so no Speculative Store Bypass
-						    * control required.
-						    */
+#define ARCH_CAP_RDCL_NO		BIT(0)	/* Not susceptible to Meltdown */
+#define ARCH_CAP_IBRS_ALL		BIT(1)	/* Enhanced IBRS support */
+#define ARCH_CAP_SKIP_VMENTRY_L1DFLUSH	BIT(3)	/* Skip L1D flush on vmentry */
+#define ARCH_CAP_SSB_NO			BIT(4)	/*
+						 * Not susceptible to Speculative Store Bypass
+						 * attack, so no Speculative Store Bypass
+						 * control required.
+						 */
+#define ARCH_CAP_MDS_NO			BIT(5)   /*
+						  * Not susceptible to
+						  * Microarchitectural Data
+						  * Sampling (MDS) vulnerabilities.
+						  */
 
 #define MSR_IA32_FLUSH_CMD		0x0000010b
-#define L1D_FLUSH			(1 << 0)   /*
-						    * Writeback and invalidate the
-						    * L1 data cache.
-						    */
+#define L1D_FLUSH			BIT(0)	/*
+						 * Writeback and invalidate the
+						 * L1 data cache.
+						 */
 
 #define MSR_IA32_BBL_CR_CTL		0x00000119
 #define MSR_IA32_BBL_CR_CTL3		0x0000011e
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/mwait.h linux-libre-5.1.21-gnu/arch/x86/include/asm/mwait.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/mwait.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/mwait.h	2019-07-28 02:28:39.000000000 -0400
@@ -6,6 +6,7 @@
 #include <linux/sched/idle.h>
 
 #include <asm/cpufeature.h>
+#include <asm/nospec-branch.h>
 
 #define MWAIT_SUBSTATE_MASK		0xf
 #define MWAIT_CSTATE_MASK		0xf
@@ -40,6 +41,8 @@ static inline void __monitorx(const void
 
 static inline void __mwait(unsigned long eax, unsigned long ecx)
 {
+	mds_idle_clear_cpu_buffers();
+
 	/* "mwait %eax, %ecx;" */
 	asm volatile(".byte 0x0f, 0x01, 0xc9;"
 		     :: "a" (eax), "c" (ecx));
@@ -74,6 +77,8 @@ static inline void __mwait(unsigned long
 static inline void __mwaitx(unsigned long eax, unsigned long ebx,
 			    unsigned long ecx)
 {
+	/* No MDS buffer clear as this is AMD/HYGON only */
+
 	/* "mwaitx %eax, %ebx, %ecx;" */
 	asm volatile(".byte 0x0f, 0x01, 0xfb;"
 		     :: "a" (eax), "b" (ebx), "c" (ecx));
@@ -81,6 +86,8 @@ static inline void __mwaitx(unsigned lon
 
 static inline void __sti_mwait(unsigned long eax, unsigned long ecx)
 {
+	mds_idle_clear_cpu_buffers();
+
 	trace_hardirqs_on();
 	/* "mwait %eax, %ecx;" */
 	asm volatile("sti; .byte 0x0f, 0x01, 0xc9;"
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/nospec-branch.h linux-libre-5.1.21-gnu/arch/x86/include/asm/nospec-branch.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/nospec-branch.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/nospec-branch.h	2019-07-28 02:28:39.000000000 -0400
@@ -318,6 +318,56 @@ DECLARE_STATIC_KEY_FALSE(switch_to_cond_
 DECLARE_STATIC_KEY_FALSE(switch_mm_cond_ibpb);
 DECLARE_STATIC_KEY_FALSE(switch_mm_always_ibpb);
 
+DECLARE_STATIC_KEY_FALSE(mds_user_clear);
+DECLARE_STATIC_KEY_FALSE(mds_idle_clear);
+
+#include <asm/segment.h>
+
+/**
+ * mds_clear_cpu_buffers - Mitigation for MDS vulnerability
+ *
+ * This uses the otherwise unused and obsolete VERW instruction in
+ * combination with microcode which triggers a CPU buffer flush when the
+ * instruction is executed.
+ */
+static inline void mds_clear_cpu_buffers(void)
+{
+	static const u16 ds = __KERNEL_DS;
+
+	/*
+	 * Has to be the memory-operand variant because only that
+	 * guarantees the CPU buffer flush functionality according to
+	 * documentation. The register-operand variant does not.
+	 * Works with any segment selector, but a valid writable
+	 * data segment is the fastest variant.
+	 *
+	 * "cc" clobber is required because VERW modifies ZF.
+	 */
+	asm volatile("verw %[ds]" : : [ds] "m" (ds) : "cc");
+}
+
+/**
+ * mds_user_clear_cpu_buffers - Mitigation for MDS vulnerability
+ *
+ * Clear CPU buffers if the corresponding static key is enabled
+ */
+static inline void mds_user_clear_cpu_buffers(void)
+{
+	if (static_branch_likely(&mds_user_clear))
+		mds_clear_cpu_buffers();
+}
+
+/**
+ * mds_idle_clear_cpu_buffers - Mitigation for MDS vulnerability
+ *
+ * Clear CPU buffers if the corresponding static key is enabled
+ */
+static inline void mds_idle_clear_cpu_buffers(void)
+{
+	if (static_branch_likely(&mds_idle_clear))
+		mds_clear_cpu_buffers();
+}
+
 #endif /* __ASSEMBLY__ */
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/processor.h linux-libre-5.1.21-gnu/arch/x86/include/asm/processor.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/processor.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/processor.h	2019-07-28 02:28:39.000000000 -0400
@@ -991,4 +991,10 @@ enum l1tf_mitigations {
 
 extern enum l1tf_mitigations l1tf_mitigation;
 
+enum mds_mitigations {
+	MDS_MITIGATION_OFF,
+	MDS_MITIGATION_FULL,
+	MDS_MITIGATION_VMWERV,
+};
+
 #endif /* _ASM_X86_PROCESSOR_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/switch_to.h linux-libre-5.1.21-gnu/arch/x86/include/asm/switch_to.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/switch_to.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/switch_to.h	2019-07-28 02:28:39.000000000 -0400
@@ -40,6 +40,7 @@ asmlinkage void ret_from_fork(void);
  * order of the fields must match the code in __switch_to_asm().
  */
 struct inactive_task_frame {
+	unsigned long flags;
 #ifdef CONFIG_X86_64
 	unsigned long r15;
 	unsigned long r14;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/text-patching.h linux-libre-5.1.21-gnu/arch/x86/include/asm/text-patching.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/text-patching.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/text-patching.h	2019-07-28 02:28:39.000000000 -0400
@@ -39,4 +39,34 @@ extern int poke_int3_handler(struct pt_r
 extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
 extern int after_bootmem;
 
+#ifndef CONFIG_UML_X86
+static inline void int3_emulate_jmp(struct pt_regs *regs, unsigned long ip)
+{
+	regs->ip = ip;
+}
+
+#define INT3_INSN_SIZE 1
+#define CALL_INSN_SIZE 5
+
+#ifdef CONFIG_X86_64
+static inline void int3_emulate_push(struct pt_regs *regs, unsigned long val)
+{
+	/*
+	 * The int3 handler in entry_64.S adds a gap between the
+	 * stack where the break point happened, and the saving of
+	 * pt_regs. We can extend the original stack because of
+	 * this gap. See the idtentry macro's create_gap option.
+	 */
+	regs->sp -= sizeof(unsigned long);
+	*(unsigned long *)regs->sp = val;
+}
+
+static inline void int3_emulate_call(struct pt_regs *regs, unsigned long func)
+{
+	int3_emulate_push(regs, regs->ip - INT3_INSN_SIZE + CALL_INSN_SIZE);
+	int3_emulate_jmp(regs, func);
+}
+#endif /* CONFIG_X86_64 */
+#endif /* !CONFIG_UML_X86 */
+
 #endif /* _ASM_X86_TEXT_PATCHING_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/include/asm/uaccess.h linux-libre-5.1.21-gnu/arch/x86/include/asm/uaccess.h
--- linux-libre-5.1-gnu/arch/x86/include/asm/uaccess.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/include/asm/uaccess.h	2019-07-28 02:28:39.000000000 -0400
@@ -427,10 +427,11 @@ do {									\
 ({								\
 	__label__ __pu_label;					\
 	int __pu_err = -EFAULT;					\
-	__typeof__(*(ptr)) __pu_val;				\
-	__pu_val = x;						\
+	__typeof__(*(ptr)) __pu_val = (x);			\
+	__typeof__(ptr) __pu_ptr = (ptr);			\
+	__typeof__(size) __pu_size = (size);			\
 	__uaccess_begin();					\
-	__put_user_size(__pu_val, (ptr), (size), __pu_label);	\
+	__put_user_size(__pu_val, __pu_ptr, __pu_size, __pu_label);	\
 	__pu_err = 0;						\
 __pu_label:							\
 	__uaccess_end();					\
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/alternative.c linux-libre-5.1.21-gnu/arch/x86/kernel/alternative.c
--- linux-libre-5.1-gnu/arch/x86/kernel/alternative.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/alternative.c	2019-07-28 02:28:39.000000000 -0400
@@ -667,15 +667,29 @@ void __init alternative_instructions(voi
  * handlers seeing an inconsistent instruction while you patch.
  */
 void *__init_or_module text_poke_early(void *addr, const void *opcode,
-					      size_t len)
+				       size_t len)
 {
 	unsigned long flags;
-	local_irq_save(flags);
-	memcpy(addr, opcode, len);
-	local_irq_restore(flags);
-	sync_core();
-	/* Could also do a CLFLUSH here to speed up CPU recovery; but
-	   that causes hangs on some VIA CPUs. */
+
+	if (boot_cpu_has(X86_FEATURE_NX) &&
+	    is_module_text_address((unsigned long)addr)) {
+		/*
+		 * Modules text is marked initially as non-executable, so the
+		 * code cannot be running and speculative code-fetches are
+		 * prevented. Just change the code.
+		 */
+		memcpy(addr, opcode, len);
+	} else {
+		local_irq_save(flags);
+		memcpy(addr, opcode, len);
+		local_irq_restore(flags);
+		sync_core();
+
+		/*
+		 * Could also do a CLFLUSH here to speed up CPU recovery; but
+		 * that causes hangs on some VIA CPUs.
+		 */
+	}
 	return addr;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/apic/apic.c linux-libre-5.1.21-gnu/arch/x86/kernel/apic/apic.c
--- linux-libre-5.1-gnu/arch/x86/kernel/apic/apic.c	2019-05-05 21:19:00.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/apic/apic.c	2019-07-28 13:19:57.000000000 -0400
@@ -1458,7 +1458,8 @@ static void apic_pending_intr_clear(void
 		if (queued) {
 			if (boot_cpu_has(X86_FEATURE_TSC) && cpu_khz) {
 				ntsc = rdtsc();
-				max_loops = (cpu_khz << 10) - (ntsc - tsc);
+				max_loops = (long long)cpu_khz << 10;
+				max_loops -= ntsc - tsc;
 			} else {
 				max_loops--;
 			}
@@ -2034,21 +2035,32 @@ __visible void __irq_entry smp_spurious_
 	entering_irq();
 	trace_spurious_apic_entry(vector);
 
+	inc_irq_stat(irq_spurious_count);
+
 	/*
-	 * Check if this really is a spurious interrupt and ACK it
-	 * if it is a vectored one.  Just in case...
-	 * Spurious interrupts should not be ACKed.
+	 * If this is a spurious interrupt then do not acknowledge
+	 */
+	if (vector == SPURIOUS_APIC_VECTOR) {
+		/* See SDM vol 3 */
+		pr_info("Spurious APIC interrupt (vector 0xFF) on CPU#%d, should never happen.\n",
+			smp_processor_id());
+		goto out;
+	}
+
+	/*
+	 * If it is a vectored one, verify it's set in the ISR. If set,
+	 * acknowledge it.
 	 */
 	v = apic_read(APIC_ISR + ((vector & ~0x1f) >> 1));
-	if (v & (1 << (vector & 0x1f)))
+	if (v & (1 << (vector & 0x1f))) {
+		pr_info("Spurious interrupt (vector 0x%02x) on CPU#%d. Acked\n",
+			vector, smp_processor_id());
 		ack_APIC_irq();
-
-	inc_irq_stat(irq_spurious_count);
-
-	/* see sw-dev-man vol 3, chapter 7.4.13.5 */
-	pr_info("spurious APIC interrupt through vector %02x on CPU#%d, "
-		"should never happen.\n", vector, smp_processor_id());
-
+	} else {
+		pr_info("Spurious interrupt (vector 0x%02x) on CPU#%d. Not pending!\n",
+			vector, smp_processor_id());
+	}
+out:
 	trace_spurious_apic_exit(vector);
 	exiting_irq();
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/apic/io_apic.c linux-libre-5.1.21-gnu/arch/x86/kernel/apic/io_apic.c
--- linux-libre-5.1-gnu/arch/x86/kernel/apic/io_apic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/apic/io_apic.c	2019-07-28 02:28:39.000000000 -0400
@@ -1893,6 +1893,50 @@ static int ioapic_set_affinity(struct ir
 	return ret;
 }
 
+/*
+ * Interrupt shutdown masks the ioapic pin, but the interrupt might already
+ * be in flight, but not yet serviced by the target CPU. That means
+ * __synchronize_hardirq() would return and claim that everything is calmed
+ * down. So free_irq() would proceed and deactivate the interrupt and free
+ * resources.
+ *
+ * Once the target CPU comes around to service it it will find a cleared
+ * vector and complain. While the spurious interrupt is harmless, the full
+ * release of resources might prevent the interrupt from being acknowledged
+ * which keeps the hardware in a weird state.
+ *
+ * Verify that the corresponding Remote-IRR bits are clear.
+ */
+static int ioapic_irq_get_chip_state(struct irq_data *irqd,
+				   enum irqchip_irq_state which,
+				   bool *state)
+{
+	struct mp_chip_data *mcd = irqd->chip_data;
+	struct IO_APIC_route_entry rentry;
+	struct irq_pin_list *p;
+
+	if (which != IRQCHIP_STATE_ACTIVE)
+		return -EINVAL;
+
+	*state = false;
+	raw_spin_lock(&ioapic_lock);
+	for_each_irq_pin(p, mcd->irq_2_pin) {
+		rentry = __ioapic_read_entry(p->apic, p->pin);
+		/*
+		 * The remote IRR is only valid in level trigger mode. It's
+		 * meaning is undefined for edge triggered interrupts and
+		 * irrelevant because the IO-APIC treats them as fire and
+		 * forget.
+		 */
+		if (rentry.irr && rentry.trigger) {
+			*state = true;
+			break;
+		}
+	}
+	raw_spin_unlock(&ioapic_lock);
+	return 0;
+}
+
 static struct irq_chip ioapic_chip __read_mostly = {
 	.name			= "IO-APIC",
 	.irq_startup		= startup_ioapic_irq,
@@ -1902,6 +1946,7 @@ static struct irq_chip ioapic_chip __rea
 	.irq_eoi		= ioapic_ack_level,
 	.irq_set_affinity	= ioapic_set_affinity,
 	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+	.irq_get_irqchip_state	= ioapic_irq_get_chip_state,
 	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };
 
@@ -1914,6 +1959,7 @@ static struct irq_chip ioapic_ir_chip __
 	.irq_eoi		= ioapic_ir_ack_level,
 	.irq_set_affinity	= ioapic_set_affinity,
 	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+	.irq_get_irqchip_state	= ioapic_irq_get_chip_state,
 	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/apic/vector.c linux-libre-5.1.21-gnu/arch/x86/kernel/apic/vector.c
--- linux-libre-5.1-gnu/arch/x86/kernel/apic/vector.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/apic/vector.c	2019-07-28 02:28:39.000000000 -0400
@@ -343,7 +343,7 @@ static void clear_irq_vector(struct irq_
 	trace_vector_clear(irqd->irq, vector, apicd->cpu, apicd->prev_vector,
 			   apicd->prev_cpu);
 
-	per_cpu(vector_irq, apicd->cpu)[vector] = VECTOR_UNUSED;
+	per_cpu(vector_irq, apicd->cpu)[vector] = VECTOR_SHUTDOWN;
 	irq_matrix_free(vector_matrix, apicd->cpu, vector, managed);
 	apicd->vector = 0;
 
@@ -352,7 +352,7 @@ static void clear_irq_vector(struct irq_
 	if (!vector)
 		return;
 
-	per_cpu(vector_irq, apicd->prev_cpu)[vector] = VECTOR_UNUSED;
+	per_cpu(vector_irq, apicd->prev_cpu)[vector] = VECTOR_SHUTDOWN;
 	irq_matrix_free(vector_matrix, apicd->prev_cpu, vector, managed);
 	apicd->prev_vector = 0;
 	apicd->move_in_progress = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/amd.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/amd.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/amd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/amd.c	2019-07-28 02:28:39.000000000 -0400
@@ -820,8 +820,11 @@ static void init_amd_zn(struct cpuinfo_x
 {
 	set_cpu_cap(c, X86_FEATURE_ZEN);
 
-	/* Fix erratum 1076: CPB feature bit not being set in CPUID. */
-	if (!cpu_has(c, X86_FEATURE_CPB))
+	/*
+	 * Fix erratum 1076: CPB feature bit not being set in CPUID.
+	 * Always set it, except when running under a hypervisor.
+	 */
+	if (!cpu_has(c, X86_FEATURE_HYPERVISOR) && !cpu_has(c, X86_FEATURE_CPB))
 		set_cpu_cap(c, X86_FEATURE_CPB);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/bugs.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/bugs.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/bugs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/bugs.c	2019-07-28 02:28:39.000000000 -0400
@@ -37,6 +37,7 @@
 static void __init spectre_v2_select_mitigation(void);
 static void __init ssb_select_mitigation(void);
 static void __init l1tf_select_mitigation(void);
+static void __init mds_select_mitigation(void);
 
 /* The base value of the SPEC_CTRL MSR that always has to be preserved. */
 u64 x86_spec_ctrl_base;
@@ -63,6 +64,13 @@ DEFINE_STATIC_KEY_FALSE(switch_mm_cond_i
 /* Control unconditional IBPB in switch_mm() */
 DEFINE_STATIC_KEY_FALSE(switch_mm_always_ibpb);
 
+/* Control MDS CPU buffer clear before returning to user space */
+DEFINE_STATIC_KEY_FALSE(mds_user_clear);
+EXPORT_SYMBOL_GPL(mds_user_clear);
+/* Control MDS CPU buffer clear before idling (halt, mwait) */
+DEFINE_STATIC_KEY_FALSE(mds_idle_clear);
+EXPORT_SYMBOL_GPL(mds_idle_clear);
+
 void __init check_bugs(void)
 {
 	identify_boot_cpu();
@@ -101,6 +109,10 @@ void __init check_bugs(void)
 
 	l1tf_select_mitigation();
 
+	mds_select_mitigation();
+
+	arch_smt_update();
+
 #ifdef CONFIG_X86_32
 	/*
 	 * Check whether we are able to run this kernel safely on SMP.
@@ -207,6 +219,61 @@ static void x86_amd_ssb_disable(void)
 }
 
 #undef pr_fmt
+#define pr_fmt(fmt)	"MDS: " fmt
+
+/* Default mitigation for MDS-affected CPUs */
+static enum mds_mitigations mds_mitigation __ro_after_init = MDS_MITIGATION_FULL;
+static bool mds_nosmt __ro_after_init = false;
+
+static const char * const mds_strings[] = {
+	[MDS_MITIGATION_OFF]	= "Vulnerable",
+	[MDS_MITIGATION_FULL]	= "Mitigation: Clear CPU buffers",
+	[MDS_MITIGATION_VMWERV]	= "Vulnerable: Clear CPU buffers attempted, no microcode",
+};
+
+static void __init mds_select_mitigation(void)
+{
+	if (!boot_cpu_has_bug(X86_BUG_MDS) || cpu_mitigations_off()) {
+		mds_mitigation = MDS_MITIGATION_OFF;
+		return;
+	}
+
+	if (mds_mitigation == MDS_MITIGATION_FULL) {
+		if (!boot_cpu_has(X86_FEATURE_MD_CLEAR))
+			mds_mitigation = MDS_MITIGATION_VMWERV;
+
+		static_branch_enable(&mds_user_clear);
+
+		if (!boot_cpu_has(X86_BUG_MSBDS_ONLY) &&
+		    (mds_nosmt || cpu_mitigations_auto_nosmt()))
+			cpu_smt_disable(false);
+	}
+
+	pr_info("%s\n", mds_strings[mds_mitigation]);
+}
+
+static int __init mds_cmdline(char *str)
+{
+	if (!boot_cpu_has_bug(X86_BUG_MDS))
+		return 0;
+
+	if (!str)
+		return -EINVAL;
+
+	if (!strcmp(str, "off"))
+		mds_mitigation = MDS_MITIGATION_OFF;
+	else if (!strcmp(str, "full"))
+		mds_mitigation = MDS_MITIGATION_FULL;
+	else if (!strcmp(str, "full,nosmt")) {
+		mds_mitigation = MDS_MITIGATION_FULL;
+		mds_nosmt = true;
+	}
+
+	return 0;
+}
+early_param("mds", mds_cmdline);
+
+#undef pr_fmt
 #define pr_fmt(fmt)     "Spectre V2 : " fmt
 
 static enum spectre_v2_mitigation spectre_v2_enabled __ro_after_init =
@@ -440,7 +507,8 @@ static enum spectre_v2_mitigation_cmd __
 	char arg[20];
 	int ret, i;
 
-	if (cmdline_find_option_bool(boot_command_line, "nospectre_v2"))
+	if (cmdline_find_option_bool(boot_command_line, "nospectre_v2") ||
+	    cpu_mitigations_off())
 		return SPECTRE_V2_CMD_NONE;
 
 	ret = cmdline_find_option(boot_command_line, "spectre_v2", arg, sizeof(arg));
@@ -574,9 +642,6 @@ specv2_set_mode:
 
 	/* Set up IBPB and STIBP depending on the general spectre V2 command */
 	spectre_v2_user_select_mitigation(cmd);
-
-	/* Enable STIBP if appropriate */
-	arch_smt_update();
 }
 
 static void update_stibp_msr(void * __unused)
@@ -610,6 +675,31 @@ static void update_indir_branch_cond(voi
 		static_branch_disable(&switch_to_cond_stibp);
 }
 
+#undef pr_fmt
+#define pr_fmt(fmt) fmt
+
+/* Update the static key controlling the MDS CPU buffer clear in idle */
+static void update_mds_branch_idle(void)
+{
+	/*
+	 * Enable the idle clearing if SMT is active on CPUs which are
+	 * affected only by MSBDS and not any other MDS variant.
+	 *
+	 * The other variants cannot be mitigated when SMT is enabled, so
+	 * clearing the buffers on idle just to prevent the Store Buffer
+	 * repartitioning leak would be a window dressing exercise.
+	 */
+	if (!boot_cpu_has_bug(X86_BUG_MSBDS_ONLY))
+		return;
+
+	if (sched_smt_active())
+		static_branch_enable(&mds_idle_clear);
+	else
+		static_branch_disable(&mds_idle_clear);
+}
+
+#define MDS_MSG_SMT "MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.\n"
+
 void arch_smt_update(void)
 {
 	/* Enhanced IBRS implies STIBP. No update required. */
@@ -631,6 +721,17 @@ void arch_smt_update(void)
 		break;
 	}
 
+	switch (mds_mitigation) {
+	case MDS_MITIGATION_FULL:
+	case MDS_MITIGATION_VMWERV:
+		if (sched_smt_active() && !boot_cpu_has(X86_BUG_MSBDS_ONLY))
+			pr_warn_once(MDS_MSG_SMT);
+		update_mds_branch_idle();
+		break;
+	case MDS_MITIGATION_OFF:
+		break;
+	}
+
 	mutex_unlock(&spec_ctrl_mutex);
 }
 
@@ -672,7 +773,8 @@ static enum ssb_mitigation_cmd __init ss
 	char arg[20];
 	int ret, i;
 
-	if (cmdline_find_option_bool(boot_command_line, "nospec_store_bypass_disable")) {
+	if (cmdline_find_option_bool(boot_command_line, "nospec_store_bypass_disable") ||
+	    cpu_mitigations_off()) {
 		return SPEC_STORE_BYPASS_CMD_NONE;
 	} else {
 		ret = cmdline_find_option(boot_command_line, "spec_store_bypass_disable",
@@ -734,6 +836,16 @@ static enum ssb_mitigation __init __ssb_
 	}
 
 	/*
+	 * If SSBD is controlled by the SPEC_CTRL MSR, then set the proper
+	 * bit in the mask to allow guests to use the mitigation even in the
+	 * case where the host does not enable it.
+	 */
+	if (static_cpu_has(X86_FEATURE_SPEC_CTRL_SSBD) ||
+	    static_cpu_has(X86_FEATURE_AMD_SSBD)) {
+		x86_spec_ctrl_mask |= SPEC_CTRL_SSBD;
+	}
+
+	/*
 	 * We have three CPU feature flags that are in play here:
 	 *  - X86_BUG_SPEC_STORE_BYPASS - CPU is susceptible.
 	 *  - X86_FEATURE_SSBD - CPU is able to turn off speculative store bypass
@@ -750,7 +862,6 @@ static enum ssb_mitigation __init __ssb_
 			x86_amd_ssb_disable();
 		} else {
 			x86_spec_ctrl_base |= SPEC_CTRL_SSBD;
-			x86_spec_ctrl_mask |= SPEC_CTRL_SSBD;
 			wrmsrl(MSR_IA32_SPEC_CTRL, x86_spec_ctrl_base);
 		}
 	}
@@ -1008,6 +1119,11 @@ static void __init l1tf_select_mitigatio
 	if (!boot_cpu_has_bug(X86_BUG_L1TF))
 		return;
 
+	if (cpu_mitigations_off())
+		l1tf_mitigation = L1TF_MITIGATION_OFF;
+	else if (cpu_mitigations_auto_nosmt())
+		l1tf_mitigation = L1TF_MITIGATION_FLUSH_NOSMT;
+
 	override_cache_bits(&boot_cpu_data);
 
 	switch (l1tf_mitigation) {
@@ -1036,7 +1152,7 @@ static void __init l1tf_select_mitigatio
 		pr_info("You may make it effective by booting the kernel with mem=%llu parameter.\n",
 				half_pa);
 		pr_info("However, doing so will make a part of your RAM unusable.\n");
-		pr_info("Reading https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html might help you decide.\n");
+		pr_info("Reading https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html might help you decide.\n");
 		return;
 	}
 
@@ -1069,6 +1185,7 @@ static int __init l1tf_cmdline(char *str
 early_param("l1tf", l1tf_cmdline);
 
 #undef pr_fmt
+#define pr_fmt(fmt) fmt
 
 #ifdef CONFIG_SYSFS
 
@@ -1107,6 +1224,23 @@ static ssize_t l1tf_show_state(char *buf
 }
 #endif
 
+static ssize_t mds_show_state(char *buf)
+{
+	if (!hypervisor_is_type(X86_HYPER_NATIVE)) {
+		return sprintf(buf, "%s; SMT Host state unknown\n",
+			       mds_strings[mds_mitigation]);
+	}
+
+	if (boot_cpu_has(X86_BUG_MSBDS_ONLY)) {
+		return sprintf(buf, "%s; SMT %s\n", mds_strings[mds_mitigation],
+			       (mds_mitigation == MDS_MITIGATION_OFF ? "vulnerable" :
+			        sched_smt_active() ? "mitigated" : "disabled"));
+	}
+
+	return sprintf(buf, "%s; SMT %s\n", mds_strings[mds_mitigation],
+		       sched_smt_active() ? "vulnerable" : "disabled");
+}
+
 static char *stibp_state(void)
 {
 	if (spectre_v2_enabled == SPECTRE_V2_IBRS_ENHANCED)
@@ -1173,6 +1307,10 @@ static ssize_t cpu_show_common(struct de
 		if (boot_cpu_has(X86_FEATURE_L1TF_PTEINV))
 			return l1tf_show_state(buf);
 		break;
+
+	case X86_BUG_MDS:
+		return mds_show_state(buf);
+
 	default:
 		break;
 	}
@@ -1204,4 +1342,9 @@ ssize_t cpu_show_l1tf(struct device *dev
 {
 	return cpu_show_common(dev, attr, buf, X86_BUG_L1TF);
 }
+
+ssize_t cpu_show_mds(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return cpu_show_common(dev, attr, buf, X86_BUG_MDS);
+}
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/cacheinfo.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/cacheinfo.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/cacheinfo.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/cacheinfo.c	2019-07-28 02:28:39.000000000 -0400
@@ -658,8 +658,7 @@ void cacheinfo_amd_init_llc_id(struct cp
 	if (c->x86 < 0x17) {
 		/* LLC is at the node level. */
 		per_cpu(cpu_llc_id, cpu) = node_id;
-	} else if (c->x86 == 0x17 &&
-		   c->x86_model >= 0 && c->x86_model <= 0x1F) {
+	} else if (c->x86 == 0x17 && c->x86_model <= 0x1F) {
 		/*
 		 * LLC is at the core complex level.
 		 * Core complex ID is ApicId[3] for these processors.
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/common.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/common.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/common.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/common.c	2019-07-28 02:28:39.000000000 -0400
@@ -948,61 +948,77 @@ static void identify_cpu_without_cpuid(s
 #endif
 }
 
-static const __initconst struct x86_cpu_id cpu_no_speculation[] = {
-	{ X86_VENDOR_INTEL,	6, INTEL_FAM6_ATOM_SALTWELL,	X86_FEATURE_ANY },
-	{ X86_VENDOR_INTEL,	6, INTEL_FAM6_ATOM_SALTWELL_TABLET,	X86_FEATURE_ANY },
-	{ X86_VENDOR_INTEL,	6, INTEL_FAM6_ATOM_BONNELL_MID,	X86_FEATURE_ANY },
-	{ X86_VENDOR_INTEL,	6, INTEL_FAM6_ATOM_SALTWELL_MID,	X86_FEATURE_ANY },
-	{ X86_VENDOR_INTEL,	6, INTEL_FAM6_ATOM_BONNELL,	X86_FEATURE_ANY },
-	{ X86_VENDOR_CENTAUR,	5 },
-	{ X86_VENDOR_INTEL,	5 },
-	{ X86_VENDOR_NSC,	5 },
-	{ X86_VENDOR_ANY,	4 },
-	{}
-};
+#define NO_SPECULATION	BIT(0)
+#define NO_MELTDOWN	BIT(1)
+#define NO_SSB		BIT(2)
+#define NO_L1TF		BIT(3)
+#define NO_MDS		BIT(4)
+#define MSBDS_ONLY	BIT(5)
 
-static const __initconst struct x86_cpu_id cpu_no_meltdown[] = {
-	{ X86_VENDOR_AMD },
-	{ X86_VENDOR_HYGON },
-	{}
-};
+#define VULNWL(_vendor, _family, _model, _whitelist)	\
+	{ X86_VENDOR_##_vendor, _family, _model, X86_FEATURE_ANY, _whitelist }
 
-/* Only list CPUs which speculate but are non susceptible to SSB */
-static const __initconst struct x86_cpu_id cpu_no_spec_store_bypass[] = {
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_SILVERMONT	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_AIRMONT		},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_SILVERMONT_X	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_SILVERMONT_MID	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_CORE_YONAH		},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_XEON_PHI_KNL		},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_XEON_PHI_KNM		},
-	{ X86_VENDOR_AMD,	0x12,					},
-	{ X86_VENDOR_AMD,	0x11,					},
-	{ X86_VENDOR_AMD,	0x10,					},
-	{ X86_VENDOR_AMD,	0xf,					},
-	{}
-};
+#define VULNWL_INTEL(model, whitelist)		\
+	VULNWL(INTEL, 6, INTEL_FAM6_##model, whitelist)
 
-static const __initconst struct x86_cpu_id cpu_no_l1tf[] = {
-	/* in addition to cpu_no_speculation */
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_SILVERMONT	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_SILVERMONT_X	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_AIRMONT		},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_SILVERMONT_MID	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_AIRMONT_MID	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_GOLDMONT	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_GOLDMONT_X	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_ATOM_GOLDMONT_PLUS	},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_XEON_PHI_KNL		},
-	{ X86_VENDOR_INTEL,	6,	INTEL_FAM6_XEON_PHI_KNM		},
+#define VULNWL_AMD(family, whitelist)		\
+	VULNWL(AMD, family, X86_MODEL_ANY, whitelist)
+
+#define VULNWL_HYGON(family, whitelist)		\
+	VULNWL(HYGON, family, X86_MODEL_ANY, whitelist)
+
+static const __initconst struct x86_cpu_id cpu_vuln_whitelist[] = {
+	VULNWL(ANY,	4, X86_MODEL_ANY,	NO_SPECULATION),
+	VULNWL(CENTAUR,	5, X86_MODEL_ANY,	NO_SPECULATION),
+	VULNWL(INTEL,	5, X86_MODEL_ANY,	NO_SPECULATION),
+	VULNWL(NSC,	5, X86_MODEL_ANY,	NO_SPECULATION),
+
+	/* Intel Family 6 */
+	VULNWL_INTEL(ATOM_SALTWELL,		NO_SPECULATION),
+	VULNWL_INTEL(ATOM_SALTWELL_TABLET,	NO_SPECULATION),
+	VULNWL_INTEL(ATOM_SALTWELL_MID,		NO_SPECULATION),
+	VULNWL_INTEL(ATOM_BONNELL,		NO_SPECULATION),
+	VULNWL_INTEL(ATOM_BONNELL_MID,		NO_SPECULATION),
+
+	VULNWL_INTEL(ATOM_SILVERMONT,		NO_SSB | NO_L1TF | MSBDS_ONLY),
+	VULNWL_INTEL(ATOM_SILVERMONT_X,		NO_SSB | NO_L1TF | MSBDS_ONLY),
+	VULNWL_INTEL(ATOM_SILVERMONT_MID,	NO_SSB | NO_L1TF | MSBDS_ONLY),
+	VULNWL_INTEL(ATOM_AIRMONT,		NO_SSB | NO_L1TF | MSBDS_ONLY),
+	VULNWL_INTEL(XEON_PHI_KNL,		NO_SSB | NO_L1TF | MSBDS_ONLY),
+	VULNWL_INTEL(XEON_PHI_KNM,		NO_SSB | NO_L1TF | MSBDS_ONLY),
+
+	VULNWL_INTEL(CORE_YONAH,		NO_SSB),
+
+	VULNWL_INTEL(ATOM_AIRMONT_MID,		NO_L1TF | MSBDS_ONLY),
+
+	VULNWL_INTEL(ATOM_GOLDMONT,		NO_MDS | NO_L1TF),
+	VULNWL_INTEL(ATOM_GOLDMONT_X,		NO_MDS | NO_L1TF),
+	VULNWL_INTEL(ATOM_GOLDMONT_PLUS,	NO_MDS | NO_L1TF),
+
+	/* AMD Family 0xf - 0x12 */
+	VULNWL_AMD(0x0f,	NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS),
+	VULNWL_AMD(0x10,	NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS),
+	VULNWL_AMD(0x11,	NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS),
+	VULNWL_AMD(0x12,	NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS),
+
+	/* FAMILY_ANY must be last, otherwise 0x0f - 0x12 matches won't work */
+	VULNWL_AMD(X86_FAMILY_ANY,	NO_MELTDOWN | NO_L1TF | NO_MDS),
+	VULNWL_HYGON(X86_FAMILY_ANY,	NO_MELTDOWN | NO_L1TF | NO_MDS),
 	{}
 };
 
+static bool __init cpu_matches(unsigned long which)
+{
+	const struct x86_cpu_id *m = x86_match_cpu(cpu_vuln_whitelist);
+
+	return m && !!(m->driver_data & which);
+}
+
 static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
 {
 	u64 ia32_cap = 0;
 
-	if (x86_match_cpu(cpu_no_speculation))
+	if (cpu_matches(NO_SPECULATION))
 		return;
 
 	setup_force_cpu_bug(X86_BUG_SPECTRE_V1);
@@ -1011,15 +1027,20 @@ static void __init cpu_set_bug_bits(stru
 	if (cpu_has(c, X86_FEATURE_ARCH_CAPABILITIES))
 		rdmsrl(MSR_IA32_ARCH_CAPABILITIES, ia32_cap);
 
-	if (!x86_match_cpu(cpu_no_spec_store_bypass) &&
-	   !(ia32_cap & ARCH_CAP_SSB_NO) &&
+	if (!cpu_matches(NO_SSB) && !(ia32_cap & ARCH_CAP_SSB_NO) &&
 	   !cpu_has(c, X86_FEATURE_AMD_SSB_NO))
 		setup_force_cpu_bug(X86_BUG_SPEC_STORE_BYPASS);
 
 	if (ia32_cap & ARCH_CAP_IBRS_ALL)
 		setup_force_cpu_cap(X86_FEATURE_IBRS_ENHANCED);
 
-	if (x86_match_cpu(cpu_no_meltdown))
+	if (!cpu_matches(NO_MDS) && !(ia32_cap & ARCH_CAP_MDS_NO)) {
+		setup_force_cpu_bug(X86_BUG_MDS);
+		if (cpu_matches(MSBDS_ONLY))
+			setup_force_cpu_bug(X86_BUG_MSBDS_ONLY);
+	}
+
+	if (cpu_matches(NO_MELTDOWN))
 		return;
 
 	/* Rogue Data Cache Load? No! */
@@ -1028,7 +1049,7 @@ static void __init cpu_set_bug_bits(stru
 
 	setup_force_cpu_bug(X86_BUG_CPU_MELTDOWN);
 
-	if (x86_match_cpu(cpu_no_l1tf))
+	if (cpu_matches(NO_L1TF))
 		return;
 
 	setup_force_cpu_bug(X86_BUG_L1TF);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/hygon.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/hygon.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/hygon.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/hygon.c	2019-07-28 02:28:39.000000000 -0400
@@ -19,6 +19,8 @@
 
 #include "cpu.h"
 
+#define APICID_SOCKET_ID_BIT 6
+
 /*
  * nodes_per_socket: Stores the number of nodes per socket.
  * Refer to CPUID Fn8000_001E_ECX Node Identifiers[10:8]
@@ -87,6 +89,9 @@ static void hygon_get_topology(struct cp
 		if (!err)
 			c->x86_coreid_bits = get_count_order(c->x86_max_cores);
 
+		/* Socket ID is ApicId[6] for these processors. */
+		c->phys_proc_id = c->apicid >> APICID_SOCKET_ID_BIT;
+
 		cacheinfo_hygon_init_llc_id(c, cpu, node_id);
 	} else if (cpu_has(c, X86_FEATURE_NODEID_MSR)) {
 		u64 value;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/amd.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/amd.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/amd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/amd.c	2019-07-28 02:28:39.000000000 -0400
@@ -563,33 +563,59 @@ out:
 	return offset;
 }
 
+bool amd_filter_mce(struct mce *m)
+{
+	enum smca_bank_types bank_type = smca_get_bank_type(m->bank);
+	struct cpuinfo_x86 *c = &boot_cpu_data;
+	u8 xec = (m->status >> 16) & 0x3F;
+
+	/* See Family 17h Models 10h-2Fh Erratum #1114. */
+	if (c->x86 == 0x17 &&
+	    c->x86_model >= 0x10 && c->x86_model <= 0x2F &&
+	    bank_type == SMCA_IF && xec == 10)
+		return true;
+
+	return false;
+}
+
 /*
- * Turn off MC4_MISC thresholding banks on all family 0x15 models since
- * they're not supported there.
+ * Turn off thresholding banks for the following conditions:
+ * - MC4_MISC thresholding is not supported on Family 0x15.
+ * - Prevent possible spurious interrupts from the IF bank on Family 0x17
+ *   Models 0x10-0x2F due to Erratum #1114.
  */
-void disable_err_thresholding(struct cpuinfo_x86 *c)
+void disable_err_thresholding(struct cpuinfo_x86 *c, unsigned int bank)
 {
-	int i;
+	int i, num_msrs;
 	u64 hwcr;
 	bool need_toggle;
-	u32 msrs[] = {
-		0x00000413, /* MC4_MISC0 */
-		0xc0000408, /* MC4_MISC1 */
-	};
+	u32 msrs[NR_BLOCKS];
 
-	if (c->x86 != 0x15)
+	if (c->x86 == 0x15 && bank == 4) {
+		msrs[0] = 0x00000413; /* MC4_MISC0 */
+		msrs[1] = 0xc0000408; /* MC4_MISC1 */
+		num_msrs = 2;
+	} else if (c->x86 == 0x17 &&
+		   (c->x86_model >= 0x10 && c->x86_model <= 0x2F)) {
+
+		if (smca_get_bank_type(bank) != SMCA_IF)
+			return;
+
+		msrs[0] = MSR_AMD64_SMCA_MCx_MISC(bank);
+		num_msrs = 1;
+	} else {
 		return;
+	}
 
 	rdmsrl(MSR_K7_HWCR, hwcr);
 
 	/* McStatusWrEn has to be set */
 	need_toggle = !(hwcr & BIT(18));
-
 	if (need_toggle)
 		wrmsrl(MSR_K7_HWCR, hwcr | BIT(18));
 
 	/* Clear CntP bit safely */
-	for (i = 0; i < ARRAY_SIZE(msrs); i++)
+	for (i = 0; i < num_msrs; i++)
 		msr_clear_bit(msrs[i], 62);
 
 	/* restore old settings */
@@ -604,12 +630,12 @@ void mce_amd_feature_init(struct cpuinfo
 	unsigned int bank, block, cpu = smp_processor_id();
 	int offset = -1;
 
-	disable_err_thresholding(c);
-
 	for (bank = 0; bank < mca_cfg.banks; ++bank) {
 		if (mce_flags.smca)
 			smca_configure(bank, cpu);
 
+		disable_err_thresholding(c, bank);
+
 		for (block = 0; block < NR_BLOCKS; ++block) {
 			address = get_block_address(address, low, high, bank, block);
 			if (!address)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/core.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/core.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -712,19 +712,49 @@ bool machine_check_poll(enum mcp_flags f
 
 		barrier();
 		m.status = mce_rdmsrl(msr_ops.status(i));
+
+		/* If this entry is not valid, ignore it */
 		if (!(m.status & MCI_STATUS_VAL))
 			continue;
 
 		/*
-		 * Uncorrected or signalled events are handled by the exception
-		 * handler when it is enabled, so don't process those here.
-		 *
-		 * TBD do the same check for MCI_STATUS_EN here?
+		 * If we are logging everything (at CPU online) or this
+		 * is a corrected error, then we must log it.
 		 */
-		if (!(flags & MCP_UC) &&
-		    (m.status & (mca_cfg.ser ? MCI_STATUS_S : MCI_STATUS_UC)))
-			continue;
+		if ((flags & MCP_UC) || !(m.status & MCI_STATUS_UC))
+			goto log_it;
+
+		/*
+		 * Newer Intel systems that support software error
+		 * recovery need to make additional checks. Other
+		 * CPUs should skip over uncorrected errors, but log
+		 * everything else.
+		 */
+		if (!mca_cfg.ser) {
+			if (m.status & MCI_STATUS_UC)
+				continue;
+			goto log_it;
+		}
+
+		/* Log "not enabled" (speculative) errors */
+		if (!(m.status & MCI_STATUS_EN))
+			goto log_it;
+
+		/*
+		 * Log UCNA (SDM: 15.6.3 "UCR Error Classification")
+		 * UC == 1 && PCC == 0 && S == 0
+		 */
+		if (!(m.status & MCI_STATUS_PCC) && !(m.status & MCI_STATUS_S))
+			goto log_it;
+
+		/*
+		 * Skip anything else. Presumption is that our read of this
+		 * bank is racing with a machine check. Leave the log alone
+		 * for do_machine_check() to deal with it.
+		 */
+		continue;
 
+log_it:
 		error_seen = true;
 
 		mce_read_aux(&m, i);
@@ -1451,13 +1481,12 @@ EXPORT_SYMBOL_GPL(mce_notify_irq);
 static int __mcheck_cpu_mce_banks_init(void)
 {
 	int i;
-	u8 num_banks = mca_cfg.banks;
 
-	mce_banks = kcalloc(num_banks, sizeof(struct mce_bank), GFP_KERNEL);
+	mce_banks = kcalloc(MAX_NR_BANKS, sizeof(struct mce_bank), GFP_KERNEL);
 	if (!mce_banks)
 		return -ENOMEM;
 
-	for (i = 0; i < num_banks; i++) {
+	for (i = 0; i < MAX_NR_BANKS; i++) {
 		struct mce_bank *b = &mce_banks[i];
 
 		b->ctl = -1ULL;
@@ -1471,28 +1500,19 @@ static int __mcheck_cpu_mce_banks_init(v
  */
 static int __mcheck_cpu_cap_init(void)
 {
-	unsigned b;
 	u64 cap;
+	u8 b;
 
 	rdmsrl(MSR_IA32_MCG_CAP, cap);
 
 	b = cap & MCG_BANKCNT_MASK;
-	if (!mca_cfg.banks)
-		pr_info("CPU supports %d MCE banks\n", b);
-
-	if (b > MAX_NR_BANKS) {
-		pr_warn("Using only %u machine check banks out of %u\n",
-			MAX_NR_BANKS, b);
+	if (WARN_ON_ONCE(b > MAX_NR_BANKS))
 		b = MAX_NR_BANKS;
-	}
 
-	/* Don't support asymmetric configurations today */
-	WARN_ON(mca_cfg.banks != 0 && b != mca_cfg.banks);
-	mca_cfg.banks = b;
+	mca_cfg.banks = max(mca_cfg.banks, b);
 
 	if (!mce_banks) {
 		int err = __mcheck_cpu_mce_banks_init();
-
 		if (err)
 			return err;
 	}
@@ -1771,6 +1791,14 @@ static void __mcheck_cpu_init_timer(void
 	mce_start_timer(t);
 }
 
+bool filter_mce(struct mce *m)
+{
+	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
+		return amd_filter_mce(m);
+
+	return false;
+}
+
 /* Handle unconfigured int18 (should never happen) */
 static void unexpected_machine_check(struct pt_regs *regs, long error_code)
 {
@@ -2451,6 +2479,8 @@ EXPORT_SYMBOL_GPL(mcsafe_key);
 
 static int __init mcheck_late_init(void)
 {
+	pr_info("Using %d MCE banks\n", mca_cfg.banks);
+
 	if (mca_cfg.recovery)
 		static_branch_inc(&mcsafe_key);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/genpool.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/genpool.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/genpool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/genpool.c	2019-07-28 02:28:39.000000000 -0400
@@ -99,6 +99,9 @@ int mce_gen_pool_add(struct mce *mce)
 {
 	struct mce_evt_llist *node;
 
+	if (filter_mce(mce))
+		return -EINVAL;
+
 	if (!mce_evt_pool)
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/inject.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/inject.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/inject.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/inject.c	2019-07-28 02:28:39.000000000 -0400
@@ -46,8 +46,6 @@
 static struct mce i_mce;
 static struct dentry *dfs_inj;
 
-static u8 n_banks;
-
 #define MAX_FLAG_OPT_SIZE	4
 #define NBCFG			0x44
 
@@ -570,9 +568,15 @@ err:
 static int inj_bank_set(void *data, u64 val)
 {
 	struct mce *m = (struct mce *)data;
+	u8 n_banks;
+	u64 cap;
+
+	/* Get bank count on target CPU so we can handle non-uniform values. */
+	rdmsrl_on_cpu(m->extcpu, MSR_IA32_MCG_CAP, &cap);
+	n_banks = cap & MCG_BANKCNT_MASK;
 
 	if (val >= n_banks) {
-		pr_err("Non-existent MCE bank: %llu\n", val);
+		pr_err("MCA bank %llu non-existent on CPU%d\n", val, m->extcpu);
 		return -EINVAL;
 	}
 
@@ -665,10 +669,6 @@ static struct dfs_node {
 static int __init debugfs_init(void)
 {
 	unsigned int i;
-	u64 cap;
-
-	rdmsrl(MSR_IA32_MCG_CAP, cap);
-	n_banks = cap & MCG_BANKCNT_MASK;
 
 	dfs_inj = debugfs_create_dir("mce-inject", NULL);
 	if (!dfs_inj)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/internal.h linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/internal.h
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/mce/internal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mce/internal.h	2019-07-28 02:28:39.000000000 -0400
@@ -173,4 +173,13 @@ struct mca_msr_regs {
 
 extern struct mca_msr_regs msr_ops;
 
+/* Decide whether to add MCE record to MCE event pool or filter it out. */
+extern bool filter_mce(struct mce *m);
+
+#ifdef CONFIG_X86_MCE_AMD
+extern bool amd_filter_mce(struct mce *m);
+#else
+static inline bool amd_filter_mce(struct mce *m)			{ return false; };
+#endif
+
 #endif /* __X86_MCE_INTERNAL_H__ */
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/microcode/core.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/microcode/core.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/microcode/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/microcode/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -418,8 +418,9 @@ static int do_microcode_update(const voi
 		if (ustate == UCODE_ERROR) {
 			error = -1;
 			break;
-		} else if (ustate == UCODE_OK)
+		} else if (ustate == UCODE_NEW) {
 			apply_microcode_on_target(cpu);
+		}
 	}
 
 	return error;
@@ -792,13 +793,16 @@ static struct syscore_ops mc_syscore_ops
 	.resume			= mc_bp_resume,
 };
 
-static int mc_cpu_online(unsigned int cpu)
+static int mc_cpu_starting(unsigned int cpu)
 {
-	struct device *dev;
-
-	dev = get_cpu_device(cpu);
 	microcode_update_cpu(cpu);
 	pr_debug("CPU%d added\n", cpu);
+	return 0;
+}
+
+static int mc_cpu_online(unsigned int cpu)
+{
+	struct device *dev = get_cpu_device(cpu);
 
 	if (sysfs_create_group(&dev->kobj, &mc_attr_group))
 		pr_err("Failed to create group for CPU%d\n", cpu);
@@ -875,6 +879,8 @@ int __init microcode_init(void)
 		goto out_ucode_group;
 
 	register_syscore_ops(&mc_syscore_ops);
+	cpuhp_setup_state_nocalls(CPUHP_AP_MICROCODE_LOADER, "x86/microcode:starting",
+				  mc_cpu_starting, NULL);
 	cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "x86/microcode:online",
 				  mc_cpu_online, mc_cpu_down_prep);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/mkcapflags.sh linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mkcapflags.sh
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/mkcapflags.sh	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/mkcapflags.sh	2019-07-28 02:28:39.000000000 -0400
@@ -4,6 +4,8 @@
 # Generate the x86_cap/bug_flags[] arrays from include/asm/cpufeatures.h
 #
 
+set -e
+
 IN=$1
 OUT=$2
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/resctrl/monitor.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/resctrl/monitor.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/resctrl/monitor.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/resctrl/monitor.c	2019-07-28 02:28:39.000000000 -0400
@@ -368,6 +368,9 @@ static void update_mba_bw(struct rdtgrou
 	struct list_head *head;
 	struct rdtgroup *entry;
 
+	if (!is_mbm_local_enabled())
+		return;
+
 	r_mba = &rdt_resources_all[RDT_RESOURCE_MBA];
 	closid = rgrp->closid;
 	rmid = rgrp->mon.rmid;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/cpu/resctrl/rdtgroup.c linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/resctrl/rdtgroup.c
--- linux-libre-5.1-gnu/arch/x86/kernel/cpu/resctrl/rdtgroup.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/cpu/resctrl/rdtgroup.c	2019-07-28 02:28:39.000000000 -0400
@@ -804,8 +804,12 @@ static int rdt_bit_usage_show(struct ker
 			      struct seq_file *seq, void *v)
 {
 	struct rdt_resource *r = of->kn->parent->priv;
-	u32 sw_shareable = 0, hw_shareable = 0;
-	u32 exclusive = 0, pseudo_locked = 0;
+	/*
+	 * Use unsigned long even though only 32 bits are used to ensure
+	 * test_bit() is used safely.
+	 */
+	unsigned long sw_shareable = 0, hw_shareable = 0;
+	unsigned long exclusive = 0, pseudo_locked = 0;
 	struct rdt_domain *dom;
 	int i, hwb, swb, excl, psl;
 	enum rdtgrp_mode mode;
@@ -850,10 +854,10 @@ static int rdt_bit_usage_show(struct ker
 		}
 		for (i = r->cache.cbm_len - 1; i >= 0; i--) {
 			pseudo_locked = dom->plr ? dom->plr->cbm : 0;
-			hwb = test_bit(i, (unsigned long *)&hw_shareable);
-			swb = test_bit(i, (unsigned long *)&sw_shareable);
-			excl = test_bit(i, (unsigned long *)&exclusive);
-			psl = test_bit(i, (unsigned long *)&pseudo_locked);
+			hwb = test_bit(i, &hw_shareable);
+			swb = test_bit(i, &sw_shareable);
+			excl = test_bit(i, &exclusive);
+			psl = test_bit(i, &pseudo_locked);
 			if (hwb && swb)
 				seq_putc(seq, 'X');
 			else if (hwb && !swb)
@@ -2494,26 +2498,19 @@ out_destroy:
  */
 static void cbm_ensure_valid(u32 *_val, struct rdt_resource *r)
 {
-	/*
-	 * Convert the u32 _val to an unsigned long required by all the bit
-	 * operations within this function. No more than 32 bits of this
-	 * converted value can be accessed because all bit operations are
-	 * additionally provided with cbm_len that is initialized during
-	 * hardware enumeration using five bits from the EAX register and
-	 * thus never can exceed 32 bits.
-	 */
-	unsigned long *val = (unsigned long *)_val;
+	unsigned long val = *_val;
 	unsigned int cbm_len = r->cache.cbm_len;
 	unsigned long first_bit, zero_bit;
 
-	if (*val == 0)
+	if (val == 0)
 		return;
 
-	first_bit = find_first_bit(val, cbm_len);
-	zero_bit = find_next_zero_bit(val, cbm_len, first_bit);
+	first_bit = find_first_bit(&val, cbm_len);
+	zero_bit = find_next_zero_bit(&val, cbm_len, first_bit);
 
 	/* Clear any remaining bits to ensure contiguous region */
-	bitmap_clear(val, zero_bit, cbm_len - zero_bit);
+	bitmap_clear(&val, zero_bit, cbm_len - zero_bit);
+	*_val = (u32)val;
 }
 
 /**
@@ -2556,7 +2553,7 @@ static int rdtgroup_init_alloc(struct rd
 				if (closid_allocated(i) && i != closid) {
 					mode = rdtgroup_mode_by_closid(i);
 					if (mode == RDT_MODE_PSEUDO_LOCKSETUP)
-						break;
+						continue;
 					/*
 					 * If CDP is active include peer
 					 * domain's usage to ensure there
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/ftrace.c linux-libre-5.1.21-gnu/arch/x86/kernel/ftrace.c
--- linux-libre-5.1-gnu/arch/x86/kernel/ftrace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/ftrace.c	2019-07-28 02:28:39.000000000 -0400
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/module.h>
+#include <linux/memory.h>
 
 #include <trace/syscall.h>
 
@@ -29,11 +30,13 @@
 #include <asm/kprobes.h>
 #include <asm/ftrace.h>
 #include <asm/nops.h>
+#include <asm/text-patching.h>
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 
 int ftrace_arch_code_modify_prepare(void)
 {
+	mutex_lock(&text_mutex);
 	set_kernel_text_rw();
 	set_all_modules_text_rw();
 	return 0;
@@ -43,6 +46,7 @@ int ftrace_arch_code_modify_post_process
 {
 	set_all_modules_text_ro();
 	set_kernel_text_ro();
+	mutex_unlock(&text_mutex);
 	return 0;
 }
 
@@ -231,6 +235,7 @@ int ftrace_modify_call(struct dyn_ftrace
 }
 
 static unsigned long ftrace_update_func;
+static unsigned long ftrace_update_func_call;
 
 static int update_ftrace_func(unsigned long ip, void *new)
 {
@@ -259,6 +264,8 @@ int ftrace_update_ftrace_func(ftrace_fun
 	unsigned char *new;
 	int ret;
 
+	ftrace_update_func_call = (unsigned long)func;
+
 	new = ftrace_call_replace(ip, (unsigned long)func);
 	ret = update_ftrace_func(ip, new);
 
@@ -294,13 +301,28 @@ int ftrace_int3_handler(struct pt_regs *
 	if (WARN_ON_ONCE(!regs))
 		return 0;
 
-	ip = regs->ip - 1;
-	if (!ftrace_location(ip) && !is_ftrace_caller(ip))
-		return 0;
+	ip = regs->ip - INT3_INSN_SIZE;
 
-	regs->ip += MCOUNT_INSN_SIZE - 1;
+#ifdef CONFIG_X86_64
+	if (ftrace_location(ip)) {
+		int3_emulate_call(regs, (unsigned long)ftrace_regs_caller);
+		return 1;
+	} else if (is_ftrace_caller(ip)) {
+		if (!ftrace_update_func_call) {
+			int3_emulate_jmp(regs, ip + CALL_INSN_SIZE);
+			return 1;
+		}
+		int3_emulate_call(regs, ftrace_update_func_call);
+		return 1;
+	}
+#else
+	if (ftrace_location(ip) || is_ftrace_caller(ip)) {
+		int3_emulate_jmp(regs, ip + CALL_INSN_SIZE);
+		return 1;
+	}
+#endif
 
-	return 1;
+	return 0;
 }
 NOKPROBE_SYMBOL(ftrace_int3_handler);
 
@@ -730,6 +752,7 @@ create_trampoline(struct ftrace_ops *ops
 	unsigned long end_offset;
 	unsigned long op_offset;
 	unsigned long offset;
+	unsigned long npages;
 	unsigned long size;
 	unsigned long retq;
 	unsigned long *ptr;
@@ -762,6 +785,7 @@ create_trampoline(struct ftrace_ops *ops
 		return 0;
 
 	*tramp_size = size + RET_SIZE + sizeof(void *);
+	npages = DIV_ROUND_UP(*tramp_size, PAGE_SIZE);
 
 	/* Copy ftrace_caller onto the trampoline memory */
 	ret = probe_kernel_read(trampoline, (void *)start_offset, size);
@@ -806,6 +830,12 @@ create_trampoline(struct ftrace_ops *ops
 	/* ALLOC_TRAMP flags lets us know we created it */
 	ops->flags |= FTRACE_OPS_FL_ALLOC_TRAMP;
 
+	/*
+	 * Module allocation needs to be completed by making the page
+	 * executable. The page is still writable, which is a security hazard,
+	 * but anyhow ftrace breaks W^X completely.
+	 */
+	set_memory_x((unsigned long)trampoline, npages);
 	return (unsigned long)trampoline;
 fail:
 	tramp_free(trampoline, *tramp_size);
@@ -859,6 +889,8 @@ void arch_ftrace_update_trampoline(struc
 
 	func = ftrace_ops_get_func(ops);
 
+	ftrace_update_func_call = (unsigned long)func;
+
 	/* Do a safe modify in case the trampoline is executing */
 	new = ftrace_call_replace(ip, (unsigned long)func);
 	ret = update_ftrace_func(ip, new);
@@ -960,6 +992,7 @@ static int ftrace_mod_jmp(unsigned long
 {
 	unsigned char *new;
 
+	ftrace_update_func_call = 0UL;
 	new = ftrace_jmp_replace(ip, (unsigned long)func);
 
 	return update_ftrace_func(ip, new);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/head64.c linux-libre-5.1.21-gnu/arch/x86/kernel/head64.c
--- linux-libre-5.1-gnu/arch/x86/kernel/head64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/head64.c	2019-07-28 02:28:39.000000000 -0400
@@ -184,24 +184,25 @@ unsigned long __head __startup_64(unsign
 	pgtable_flags = _KERNPG_TABLE_NOENC + sme_get_me_mask();
 
 	if (la57) {
-		p4d = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr);
+		p4d = fixup_pointer(early_dynamic_pgts[(*next_pgt_ptr)++],
+				    physaddr);
 
 		i = (physaddr >> PGDIR_SHIFT) % PTRS_PER_PGD;
 		pgd[i + 0] = (pgdval_t)p4d + pgtable_flags;
 		pgd[i + 1] = (pgdval_t)p4d + pgtable_flags;
 
-		i = (physaddr >> P4D_SHIFT) % PTRS_PER_P4D;
-		p4d[i + 0] = (pgdval_t)pud + pgtable_flags;
-		p4d[i + 1] = (pgdval_t)pud + pgtable_flags;
+		i = physaddr >> P4D_SHIFT;
+		p4d[(i + 0) % PTRS_PER_P4D] = (pgdval_t)pud + pgtable_flags;
+		p4d[(i + 1) % PTRS_PER_P4D] = (pgdval_t)pud + pgtable_flags;
 	} else {
 		i = (physaddr >> PGDIR_SHIFT) % PTRS_PER_PGD;
 		pgd[i + 0] = (pgdval_t)pud + pgtable_flags;
 		pgd[i + 1] = (pgdval_t)pud + pgtable_flags;
 	}
 
-	i = (physaddr >> PUD_SHIFT) % PTRS_PER_PUD;
-	pud[i + 0] = (pudval_t)pmd + pgtable_flags;
-	pud[i + 1] = (pudval_t)pmd + pgtable_flags;
+	i = physaddr >> PUD_SHIFT;
+	pud[(i + 0) % PTRS_PER_PUD] = (pudval_t)pmd + pgtable_flags;
+	pud[(i + 1) % PTRS_PER_PUD] = (pudval_t)pmd + pgtable_flags;
 
 	pmd_entry = __PAGE_KERNEL_LARGE_EXEC & ~_PAGE_GLOBAL;
 	/* Filter out unsupported __PAGE_KERNEL_* bits: */
@@ -211,8 +212,9 @@ unsigned long __head __startup_64(unsign
 	pmd_entry +=  physaddr;
 
 	for (i = 0; i < DIV_ROUND_UP(_end - _text, PMD_SIZE); i++) {
-		int idx = i + (physaddr >> PMD_SHIFT) % PTRS_PER_PMD;
-		pmd[idx] = pmd_entry + i * PMD_SIZE;
+		int idx = i + (physaddr >> PMD_SHIFT);
+
+		pmd[idx % PTRS_PER_PMD] = pmd_entry + i * PMD_SIZE;
 	}
 
 	/*
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/idt.c linux-libre-5.1.21-gnu/arch/x86/kernel/idt.c
--- linux-libre-5.1-gnu/arch/x86/kernel/idt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/idt.c	2019-07-28 02:28:39.000000000 -0400
@@ -321,7 +321,8 @@ void __init idt_setup_apic_and_irq_gates
 #ifdef CONFIG_X86_LOCAL_APIC
 	for_each_clear_bit_from(i, system_vectors, NR_VECTORS) {
 		set_bit(i, system_vectors);
-		set_intr_gate(i, spurious_interrupt);
+		entry = spurious_entries_start + 8 * (i - FIRST_SYSTEM_VECTOR);
+		set_intr_gate(i, entry);
 	}
 #endif
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/ima_arch.c linux-libre-5.1.21-gnu/arch/x86/kernel/ima_arch.c
--- linux-libre-5.1-gnu/arch/x86/kernel/ima_arch.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/ima_arch.c	2019-07-28 02:28:39.000000000 -0400
@@ -17,6 +17,11 @@ static enum efi_secureboot_mode get_sb_m
 
 	size = sizeof(secboot);
 
+	if (!efi_enabled(EFI_RUNTIME_SERVICES)) {
+		pr_info("ima: secureboot mode unknown, no efi\n");
+		return efi_secureboot_mode_unknown;
+	}
+
 	/* Get variable contents into buffer */
 	status = efi.get_variable(efi_SecureBoot_name, &efi_variable_guid,
 				  NULL, &size, &secboot);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/irq_64.c linux-libre-5.1.21-gnu/arch/x86/kernel/irq_64.c
--- linux-libre-5.1-gnu/arch/x86/kernel/irq_64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/irq_64.c	2019-07-28 02:28:39.000000000 -0400
@@ -26,9 +26,18 @@ int sysctl_panic_on_stackoverflow;
 /*
  * Probabilistic stack overflow check:
  *
- * Only check the stack in process context, because everything else
- * runs on the big interrupt stacks. Checking reliably is too expensive,
- * so we just check from interrupts.
+ * Regular device interrupts can enter on the following stacks:
+ *
+ * - User stack
+ *
+ * - Kernel task stack
+ *
+ * - Interrupt stack if a device driver reenables interrupts
+ *   which should only happen in really old drivers.
+ *
+ * - Debug IST stack
+ *
+ * All other contexts are invalid.
  */
 static inline void stack_overflow_check(struct pt_regs *regs)
 {
@@ -53,8 +62,8 @@ static inline void stack_overflow_check(
 		return;
 
 	oist = this_cpu_ptr(&orig_ist);
-	estack_top = (u64)oist->ist[0] - EXCEPTION_STKSZ + STACK_TOP_MARGIN;
-	estack_bottom = (u64)oist->ist[N_EXCEPTION_STACKS - 1];
+	estack_bottom = (u64)oist->ist[DEBUG_STACK];
+	estack_top = estack_bottom - DEBUG_STKSZ + STACK_TOP_MARGIN;
 	if (regs->sp >= estack_top && regs->sp <= estack_bottom)
 		return;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/irq.c linux-libre-5.1.21-gnu/arch/x86/kernel/irq.c
--- linux-libre-5.1-gnu/arch/x86/kernel/irq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/irq.c	2019-07-28 02:28:39.000000000 -0400
@@ -246,7 +246,7 @@ __visible unsigned int __irq_entry do_IR
 	if (!handle_irq(desc, regs)) {
 		ack_APIC_irq();
 
-		if (desc != VECTOR_RETRIGGERED) {
+		if (desc != VECTOR_RETRIGGERED && desc != VECTOR_SHUTDOWN) {
 			pr_emerg_ratelimited("%s: %d.%d No irq handler for vector\n",
 					     __func__, smp_processor_id(),
 					     vector);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/kprobes/core.c linux-libre-5.1.21-gnu/arch/x86/kernel/kprobes/core.c
--- linux-libre-5.1-gnu/arch/x86/kernel/kprobes/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/kprobes/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -431,8 +431,20 @@ void *alloc_insn_page(void)
 	void *page;
 
 	page = module_alloc(PAGE_SIZE);
-	if (page)
-		set_memory_ro((unsigned long)page & PAGE_MASK, 1);
+	if (!page)
+		return NULL;
+
+	/*
+	 * First make the page read-only, and only then make it executable to
+	 * prevent it from being W+X in between.
+	 */
+	set_memory_ro((unsigned long)page, 1);
+
+	/*
+	 * TODO: Once additional kernel code protection mechanisms are set, ensure
+	 * that the page was not maliciously altered and it is still zeroed.
+	 */
+	set_memory_x((unsigned long)page, 1);
 
 	return page;
 }
@@ -440,8 +452,12 @@ void *alloc_insn_page(void)
 /* Recover page to RW mode before releasing it */
 void free_insn_page(void *page)
 {
-	set_memory_nx((unsigned long)page & PAGE_MASK, 1);
-	set_memory_rw((unsigned long)page & PAGE_MASK, 1);
+	/*
+	 * First make the page non-executable, and only then make it writable to
+	 * prevent it from being W+X in between.
+	 */
+	set_memory_nx((unsigned long)page, 1);
+	set_memory_rw((unsigned long)page, 1);
 	module_memfree(page);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/module.c linux-libre-5.1.21-gnu/arch/x86/kernel/module.c
--- linux-libre-5.1-gnu/arch/x86/kernel/module.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/module.c	2019-07-28 02:28:39.000000000 -0400
@@ -87,7 +87,7 @@ void *module_alloc(unsigned long size)
 	p = __vmalloc_node_range(size, MODULE_ALIGN,
 				    MODULES_VADDR + get_module_load_offset(),
 				    MODULES_END, GFP_KERNEL,
-				    PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
+				    PAGE_KERNEL, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 	if (p && (kasan_module_alloc(p, size) < 0)) {
 		vfree(p);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/mpparse.c linux-libre-5.1.21-gnu/arch/x86/kernel/mpparse.c
--- linux-libre-5.1-gnu/arch/x86/kernel/mpparse.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/mpparse.c	2019-07-28 02:28:39.000000000 -0400
@@ -546,17 +546,15 @@ void __init default_get_smp_config(unsig
 			 * local APIC has default address
 			 */
 			mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
-			return;
+			goto out;
 		}
 
 		pr_info("Default MP configuration #%d\n", mpf->feature1);
 		construct_default_ISA_mptable(mpf->feature1);
 
 	} else if (mpf->physptr) {
-		if (check_physptr(mpf, early)) {
-			early_memunmap(mpf, sizeof(*mpf));
-			return;
-		}
+		if (check_physptr(mpf, early))
+			goto out;
 	} else
 		BUG();
 
@@ -565,7 +563,7 @@ void __init default_get_smp_config(unsig
 	/*
 	 * Only use the first configuration found.
 	 */
-
+out:
 	early_memunmap(mpf, sizeof(*mpf));
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/nmi.c linux-libre-5.1.21-gnu/arch/x86/kernel/nmi.c
--- linux-libre-5.1-gnu/arch/x86/kernel/nmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/nmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -34,6 +34,7 @@
 #include <asm/x86_init.h>
 #include <asm/reboot.h>
 #include <asm/cache.h>
+#include <asm/nospec-branch.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/nmi.h>
@@ -533,6 +534,9 @@ nmi_restart:
 		write_cr2(this_cpu_read(nmi_cr2));
 	if (this_cpu_dec_return(nmi_state))
 		goto nmi_restart;
+
+	if (user_mode(regs))
+		mds_user_clear_cpu_buffers();
 }
 NOKPROBE_SYMBOL(do_nmi);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/process_32.c linux-libre-5.1.21-gnu/arch/x86/kernel/process_32.c
--- linux-libre-5.1-gnu/arch/x86/kernel/process_32.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/process_32.c	2019-07-28 02:28:39.000000000 -0400
@@ -127,6 +127,13 @@ int copy_thread_tls(unsigned long clone_
 	struct task_struct *tsk;
 	int err;
 
+	/*
+	 * For a new task use the RESET flags value since there is no before.
+	 * All the status flags are zero; DF and all the system flags must also
+	 * be 0, specifically IF must be 0 because we context switch to the new
+	 * task with interrupts disabled.
+	 */
+	frame->flags = X86_EFLAGS_FIXED;
 	frame->bp = 0;
 	frame->ret_addr = (unsigned long) ret_from_fork;
 	p->thread.sp = (unsigned long) fork_frame;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/process_64.c linux-libre-5.1.21-gnu/arch/x86/kernel/process_64.c
--- linux-libre-5.1-gnu/arch/x86/kernel/process_64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/process_64.c	2019-07-28 02:28:39.000000000 -0400
@@ -392,6 +392,14 @@ int copy_thread_tls(unsigned long clone_
 	childregs = task_pt_regs(p);
 	fork_frame = container_of(childregs, struct fork_frame, regs);
 	frame = &fork_frame->frame;
+
+	/*
+	 * For a new task use the RESET flags value since there is no before.
+	 * All the status flags are zero; DF and all the system flags must also
+	 * be 0, specifically IF must be 0 because we context switch to the new
+	 * task with interrupts disabled.
+	 */
+	frame->flags = X86_EFLAGS_FIXED;
 	frame->bp = 0;
 	frame->ret_addr = (unsigned long) ret_from_fork;
 	p->thread.sp = (unsigned long) fork_frame;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/ptrace.c linux-libre-5.1.21-gnu/arch/x86/kernel/ptrace.c
--- linux-libre-5.1-gnu/arch/x86/kernel/ptrace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/ptrace.c	2019-07-28 02:28:39.000000000 -0400
@@ -24,6 +24,7 @@
 #include <linux/rcupdate.h>
 #include <linux/export.h>
 #include <linux/context_tracking.h>
+#include <linux/nospec.h>
 
 #include <linux/uaccess.h>
 #include <asm/pgtable.h>
@@ -642,9 +643,11 @@ static unsigned long ptrace_get_debugreg
 {
 	struct thread_struct *thread = &tsk->thread;
 	unsigned long val = 0;
+	int index = n;
 
 	if (n < HBP_NUM) {
-		struct perf_event *bp = thread->ptrace_bps[n];
+		struct perf_event *bp = thread->ptrace_bps[index];
+		index = array_index_nospec(index, HBP_NUM);
 
 		if (bp)
 			val = bp->hw.info.address;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/signal.c linux-libre-5.1.21-gnu/arch/x86/kernel/signal.c
--- linux-libre-5.1-gnu/arch/x86/kernel/signal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/signal.c	2019-07-28 02:28:39.000000000 -0400
@@ -132,16 +132,6 @@ static int restore_sigcontext(struct pt_
 		COPY_SEG_CPL3(cs);
 		COPY_SEG_CPL3(ss);
 
-#ifdef CONFIG_X86_64
-		/*
-		 * Fix up SS if needed for the benefit of old DOSEMU and
-		 * CRIU.
-		 */
-		if (unlikely(!(uc_flags & UC_STRICT_RESTORE_SS) &&
-			     user_64bit_mode(regs)))
-			force_valid_ss(regs);
-#endif
-
 		get_user_ex(tmpflags, &sc->flags);
 		regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
 		regs->orig_ax = -1;		/* disable syscall checks */
@@ -150,6 +140,15 @@ static int restore_sigcontext(struct pt_
 		buf = (void __user *)buf_val;
 	} get_user_catch(err);
 
+#ifdef CONFIG_X86_64
+	/*
+	 * Fix up SS if needed for the benefit of old DOSEMU and
+	 * CRIU.
+	 */
+	if (unlikely(!(uc_flags & UC_STRICT_RESTORE_SS) && user_64bit_mode(regs)))
+		force_valid_ss(regs);
+#endif
+
 	err |= fpu__restore_sig(buf, IS_ENABLED(CONFIG_X86_32));
 
 	force_iret();
@@ -461,6 +460,7 @@ static int __setup_rt_frame(int sig, str
 {
 	struct rt_sigframe __user *frame;
 	void __user *fp = NULL;
+	unsigned long uc_flags;
 	int err = 0;
 
 	frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe), &fp);
@@ -473,9 +473,11 @@ static int __setup_rt_frame(int sig, str
 			return -EFAULT;
 	}
 
+	uc_flags = frame_uc_flags(regs);
+
 	put_user_try {
 		/* Create the ucontext.  */
-		put_user_ex(frame_uc_flags(regs), &frame->uc.uc_flags);
+		put_user_ex(uc_flags, &frame->uc.uc_flags);
 		put_user_ex(0, &frame->uc.uc_link);
 		save_altstack_ex(&frame->uc.uc_stack, regs->sp);
 
@@ -541,6 +543,7 @@ static int x32_setup_rt_frame(struct ksi
 {
 #ifdef CONFIG_X86_X32_ABI
 	struct rt_sigframe_x32 __user *frame;
+	unsigned long uc_flags;
 	void __user *restorer;
 	int err = 0;
 	void __user *fpstate = NULL;
@@ -555,9 +558,11 @@ static int x32_setup_rt_frame(struct ksi
 			return -EFAULT;
 	}
 
+	uc_flags = frame_uc_flags(regs);
+
 	put_user_try {
 		/* Create the ucontext.  */
-		put_user_ex(frame_uc_flags(regs), &frame->uc.uc_flags);
+		put_user_ex(uc_flags, &frame->uc.uc_flags);
 		put_user_ex(0, &frame->uc.uc_link);
 		compat_save_altstack_ex(&frame->uc.uc_stack, regs->sp);
 		put_user_ex(0, &frame->uc.uc__pad0);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kernel/tls.c linux-libre-5.1.21-gnu/arch/x86/kernel/tls.c
--- linux-libre-5.1-gnu/arch/x86/kernel/tls.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kernel/tls.c	2019-07-28 02:28:39.000000000 -0400
@@ -5,6 +5,7 @@
 #include <linux/user.h>
 #include <linux/regset.h>
 #include <linux/syscalls.h>
+#include <linux/nospec.h>
 
 #include <linux/uaccess.h>
 #include <asm/desc.h>
@@ -220,6 +221,7 @@ int do_get_thread_area(struct task_struc
 		       struct user_desc __user *u_info)
 {
 	struct user_desc info;
+	int index;
 
 	if (idx == -1 && get_user(idx, &u_info->entry_number))
 		return -EFAULT;
@@ -227,8 +229,11 @@ int do_get_thread_area(struct task_struc
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
-	fill_user_desc(&info, idx,
-		       &p->thread.tls_array[idx - GDT_ENTRY_TLS_MIN]);
+	index = idx - GDT_ENTRY_TLS_MIN;
+	index = array_index_nospec(index,
+			GDT_ENTRY_TLS_MAX - GDT_ENTRY_TLS_MIN + 1);
+
+	fill_user_desc(&info, idx, &p->thread.tls_array[index]);
 
 	if (copy_to_user(u_info, &info, sizeof(info)))
 		return -EFAULT;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/cpuid.c linux-libre-5.1.21-gnu/arch/x86/kvm/cpuid.c
--- linux-libre-5.1-gnu/arch/x86/kvm/cpuid.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/cpuid.c	2019-07-28 02:28:39.000000000 -0400
@@ -410,7 +410,8 @@ static inline int __do_cpuid_ent(struct
 	/* cpuid 7.0.edx*/
 	const u32 kvm_cpuid_7_0_edx_x86_features =
 		F(AVX512_4VNNIW) | F(AVX512_4FMAPS) | F(SPEC_CTRL) |
-		F(SPEC_CTRL_SSBD) | F(ARCH_CAPABILITIES) | F(INTEL_STIBP);
+		F(SPEC_CTRL_SSBD) | F(ARCH_CAPABILITIES) | F(INTEL_STIBP) |
+		F(MD_CLEAR);
 
 	/* all calls to cpuid_count() should be made on the same cpu */
 	get_cpu();
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/irq.c linux-libre-5.1.21-gnu/arch/x86/kvm/irq.c
--- linux-libre-5.1-gnu/arch/x86/kvm/irq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/irq.c	2019-07-28 02:28:39.000000000 -0400
@@ -172,3 +172,10 @@ void __kvm_migrate_timers(struct kvm_vcp
 	__kvm_migrate_apic_timer(vcpu);
 	__kvm_migrate_pit_timer(vcpu);
 }
+
+bool kvm_arch_irqfd_allowed(struct kvm *kvm, struct kvm_irqfd *args)
+{
+	bool resample = args->flags & KVM_IRQFD_FLAG_RESAMPLE;
+
+	return resample ? irqchip_kernel(kvm) : irqchip_in_kernel(kvm);
+}
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/irq.h linux-libre-5.1.21-gnu/arch/x86/kvm/irq.h
--- linux-libre-5.1-gnu/arch/x86/kvm/irq.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/irq.h	2019-07-28 02:28:39.000000000 -0400
@@ -114,6 +114,7 @@ static inline int irqchip_in_kernel(stru
 	return mode != KVM_IRQCHIP_NONE;
 }
 
+bool kvm_arch_irqfd_allowed(struct kvm *kvm, struct kvm_irqfd *args);
 void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
 void kvm_apic_nmi_wd_deliver(struct kvm_vcpu *vcpu);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/lapic.c linux-libre-5.1.21-gnu/arch/x86/kvm/lapic.c
--- linux-libre-5.1-gnu/arch/x86/kvm/lapic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/lapic.c	2019-07-28 02:28:39.000000000 -0400
@@ -1454,7 +1454,7 @@ static void apic_timer_expired(struct kv
 	if (swait_active(q))
 		swake_up_one(q);
 
-	if (apic_lvtt_tscdeadline(apic))
+	if (apic_lvtt_tscdeadline(apic) || ktimer->hv_timer_in_use)
 		ktimer->expired_tscdeadline = ktimer->tscdeadline;
 }
 
@@ -2331,7 +2331,7 @@ int kvm_apic_has_interrupt(struct kvm_vc
 	struct kvm_lapic *apic = vcpu->arch.apic;
 	u32 ppr;
 
-	if (!apic_enabled(apic))
+	if (!kvm_apic_hw_enabled(apic))
 		return -1;
 
 	__apic_update_ppr(apic, &ppr);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/mmu.c linux-libre-5.1.21-gnu/arch/x86/kvm/mmu.c
--- linux-libre-5.1-gnu/arch/x86/kvm/mmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/mmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -5591,14 +5591,18 @@ static int alloc_mmu_pages(struct kvm_vc
 	struct page *page;
 	int i;
 
-	if (tdp_enabled)
-		return 0;
-
 	/*
-	 * When emulating 32-bit mode, cr3 is only 32 bits even on x86_64.
-	 * Therefore we need to allocate shadow page tables in the first
-	 * 4GB of memory, which happens to fit the DMA32 zone.
+	 * When using PAE paging, the four PDPTEs are treated as 'root' pages,
+	 * while the PDP table is a per-vCPU construct that's allocated at MMU
+	 * creation.  When emulating 32-bit mode, cr3 is only 32 bits even on
+	 * x86_64.  Therefore we need to allocate the PDP table in the first
+	 * 4GB of memory, which happens to fit the DMA32 zone.  Except for
+	 * SVM's 32-bit NPT support, TDP paging doesn't use PAE paging and can
+	 * skip allocating the PDP table.
 	 */
+	if (tdp_enabled && kvm_x86_ops->get_tdp_level(vcpu) > PT32E_ROOT_LEVEL)
+		return 0;
+
 	page = alloc_page(GFP_KERNEL_ACCOUNT | __GFP_DMA32);
 	if (!page)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/pmu_amd.c linux-libre-5.1.21-gnu/arch/x86/kvm/pmu_amd.c
--- linux-libre-5.1-gnu/arch/x86/kvm/pmu_amd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/pmu_amd.c	2019-07-28 02:28:39.000000000 -0400
@@ -186,7 +186,7 @@ static int amd_is_valid_msr_idx(struct k
 }
 
 /* idx is the ECX register of RDPMC instruction */
-static struct kvm_pmc *amd_msr_idx_to_pmc(struct kvm_vcpu *vcpu, unsigned idx)
+static struct kvm_pmc *amd_msr_idx_to_pmc(struct kvm_vcpu *vcpu, unsigned idx, u64 *mask)
 {
 	struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
 	struct kvm_pmc *counters;
@@ -269,10 +269,10 @@ static void amd_pmu_refresh(struct kvm_v
 
 	pmu->counter_bitmask[KVM_PMC_GP] = ((u64)1 << 48) - 1;
 	pmu->reserved_bits = 0xffffffff00200000ull;
+	pmu->version = 1;
 	/* not applicable to AMD; but clean them to prevent any fall out */
 	pmu->counter_bitmask[KVM_PMC_FIXED] = 0;
 	pmu->nr_arch_fixed_counters = 0;
-	pmu->version = 0;
 	pmu->global_status = 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/pmu.c linux-libre-5.1.21-gnu/arch/x86/kvm/pmu.c
--- linux-libre-5.1-gnu/arch/x86/kvm/pmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/pmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -131,8 +131,8 @@ static void pmc_reprogram_counter(struct
 						 intr ? kvm_perf_overflow_intr :
 						 kvm_perf_overflow, pmc);
 	if (IS_ERR(event)) {
-		printk_once("kvm_pmu: event creation failed %ld\n",
-			    PTR_ERR(event));
+		pr_debug_ratelimited("kvm_pmu: event creation failed %ld for pmc->idx = %d\n",
+			    PTR_ERR(event), pmc->idx);
 		return;
 	}
 
@@ -283,7 +283,7 @@ int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu,
 	bool fast_mode = idx & (1u << 31);
 	struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
 	struct kvm_pmc *pmc;
-	u64 ctr_val;
+	u64 mask = fast_mode ? ~0u : ~0ull;
 
 	if (!pmu->version)
 		return 1;
@@ -291,15 +291,11 @@ int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu,
 	if (is_vmware_backdoor_pmc(idx))
 		return kvm_pmu_rdpmc_vmware(vcpu, idx, data);
 
-	pmc = kvm_x86_ops->pmu_ops->msr_idx_to_pmc(vcpu, idx);
+	pmc = kvm_x86_ops->pmu_ops->msr_idx_to_pmc(vcpu, idx, &mask);
 	if (!pmc)
 		return 1;
 
-	ctr_val = pmc_read_counter(pmc);
-	if (fast_mode)
-		ctr_val = (u32)ctr_val;
-
-	*data = ctr_val;
+	*data = pmc_read_counter(pmc) & mask;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/pmu.h linux-libre-5.1.21-gnu/arch/x86/kvm/pmu.h
--- linux-libre-5.1-gnu/arch/x86/kvm/pmu.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/pmu.h	2019-07-28 02:28:39.000000000 -0400
@@ -25,7 +25,8 @@ struct kvm_pmu_ops {
 	unsigned (*find_fixed_event)(int idx);
 	bool (*pmc_is_enabled)(struct kvm_pmc *pmc);
 	struct kvm_pmc *(*pmc_idx_to_pmc)(struct kvm_pmu *pmu, int pmc_idx);
-	struct kvm_pmc *(*msr_idx_to_pmc)(struct kvm_vcpu *vcpu, unsigned idx);
+	struct kvm_pmc *(*msr_idx_to_pmc)(struct kvm_vcpu *vcpu, unsigned idx,
+					  u64 *mask);
 	int (*is_valid_msr_idx)(struct kvm_vcpu *vcpu, unsigned idx);
 	bool (*is_valid_msr)(struct kvm_vcpu *vcpu, u32 msr);
 	int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/svm.c linux-libre-5.1.21-gnu/arch/x86/kvm/svm.c
--- linux-libre-5.1-gnu/arch/x86/kvm/svm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/svm.c	2019-07-28 02:28:39.000000000 -0400
@@ -379,6 +379,9 @@ module_param(vgif, int, 0444);
 static int sev = IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT);
 module_param(sev, int, 0444);
 
+static bool __read_mostly dump_invalid_vmcb = 0;
+module_param(dump_invalid_vmcb, bool, 0644);
+
 static u8 rsm_ins_bytes[] = "\x0f\xaa";
 
 static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
@@ -2024,7 +2027,11 @@ static void avic_vcpu_load(struct kvm_vc
 	if (!kvm_vcpu_apicv_active(vcpu))
 		return;
 
-	if (WARN_ON(h_physical_id >= AVIC_MAX_PHYSICAL_ID_COUNT))
+	/*
+	 * Since the host physical APIC id is 8 bits,
+	 * we can support host APIC ID upto 255.
+	 */
+	if (WARN_ON(h_physical_id > AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK))
 		return;
 
 	entry = READ_ONCE(*(svm->avic_physical_id_cache));
@@ -4830,6 +4837,11 @@ static void dump_vmcb(struct kvm_vcpu *v
 	struct vmcb_control_area *control = &svm->vmcb->control;
 	struct vmcb_save_area *save = &svm->vmcb->save;
 
+	if (!dump_invalid_vmcb) {
+		pr_warn_ratelimited("set kvm_amd.dump_invalid_vmcb=1 to dump internal KVM state.\n");
+		return;
+	}
+
 	pr_err("VMCB Control Area:\n");
 	pr_err("%-20s%04x\n", "cr_read:", control->intercept_cr & 0xffff);
 	pr_err("%-20s%04x\n", "cr_write:", control->intercept_cr >> 16);
@@ -4988,7 +5000,6 @@ static int handle_exit(struct kvm_vcpu *
 		kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
 		kvm_run->fail_entry.hardware_entry_failure_reason
 			= svm->vmcb->control.exit_code;
-		pr_err("KVM: FAILED VMRUN WITH VMCB:\n");
 		dump_vmcb(vcpu);
 		return 0;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/vmx/nested.c linux-libre-5.1.21-gnu/arch/x86/kvm/vmx/nested.c
--- linux-libre-5.1-gnu/arch/x86/kvm/vmx/nested.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/vmx/nested.c	2019-07-28 02:28:39.000000000 -0400
@@ -184,6 +184,7 @@ static void vmx_disable_shadow_vmcs(stru
 {
 	vmcs_clear_bits(SECONDARY_VM_EXEC_CONTROL, SECONDARY_EXEC_SHADOW_VMCS);
 	vmcs_write64(VMCS_LINK_POINTER, -1ull);
+	vmx->nested.need_vmcs12_sync = false;
 }
 
 static inline void nested_release_evmcs(struct kvm_vcpu *vcpu)
@@ -211,6 +212,8 @@ static void free_nested(struct kvm_vcpu
 	if (!vmx->nested.vmxon && !vmx->nested.smm.vmxon)
 		return;
 
+	kvm_clear_request(KVM_REQ_GET_VMCS12_PAGES, vcpu);
+
 	vmx->nested.vmxon = false;
 	vmx->nested.smm.vmxon = false;
 	free_vpid(vmx->nested.vpid02);
@@ -1328,6 +1331,9 @@ static void copy_shadow_to_vmcs12(struct
 	u64 field_value;
 	struct vmcs *shadow_vmcs = vmx->vmcs01.shadow_vmcs;
 
+	if (WARN_ON(!shadow_vmcs))
+		return;
+
 	preempt_disable();
 
 	vmcs_load(shadow_vmcs);
@@ -1366,6 +1372,9 @@ static void copy_vmcs12_to_shadow(struct
 	u64 field_value = 0;
 	struct vmcs *shadow_vmcs = vmx->vmcs01.shadow_vmcs;
 
+	if (WARN_ON(!shadow_vmcs))
+		return;
+
 	vmcs_load(shadow_vmcs);
 
 	for (q = 0; q < ARRAY_SIZE(fields); q++) {
@@ -1404,7 +1413,7 @@ static int copy_enlightened_to_vmcs12(st
 	}
 
 	if (unlikely(!(evmcs->hv_clean_fields &
-		       HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC))) {
+		       HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN))) {
 		vmcs12->exception_bitmap = evmcs->exception_bitmap;
 	}
 
@@ -1444,7 +1453,7 @@ static int copy_enlightened_to_vmcs12(st
 	}
 
 	if (unlikely(!(evmcs->hv_clean_fields &
-		       HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1))) {
+		       HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1))) {
 		vmcs12->pin_based_vm_exec_control =
 			evmcs->pin_based_vm_exec_control;
 		vmcs12->vm_exit_controls = evmcs->vm_exit_controls;
@@ -2243,13 +2252,9 @@ static void prepare_vmcs02_full(struct v
 
 	set_cr4_guest_host_mask(vmx);
 
-	if (kvm_mpx_supported()) {
-		if (vmx->nested.nested_run_pending &&
-			(vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS))
-			vmcs_write64(GUEST_BNDCFGS, vmcs12->guest_bndcfgs);
-		else
-			vmcs_write64(GUEST_BNDCFGS, vmx->nested.vmcs01_guest_bndcfgs);
-	}
+	if (kvm_mpx_supported() && vmx->nested.nested_run_pending &&
+	    (vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS))
+		vmcs_write64(GUEST_BNDCFGS, vmcs12->guest_bndcfgs);
 }
 
 /*
@@ -2292,6 +2297,9 @@ static int prepare_vmcs02(struct kvm_vcp
 		kvm_set_dr(vcpu, 7, vcpu->arch.dr7);
 		vmcs_write64(GUEST_IA32_DEBUGCTL, vmx->nested.vmcs01_debugctl);
 	}
+	if (kvm_mpx_supported() && (!vmx->nested.nested_run_pending ||
+	    !(vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS)))
+		vmcs_write64(GUEST_BNDCFGS, vmx->nested.vmcs01_guest_bndcfgs);
 	vmx_set_rflags(vcpu, vmcs12->guest_rflags);
 
 	/* EXCEPTION_BITMAP and CR0_GUEST_HOST_MASK should basically be the
@@ -2792,14 +2800,13 @@ static int nested_vmx_check_vmentry_hw(s
 	      : "cc", "memory"
 	);
 
-	preempt_enable();
-
 	if (vmx->msr_autoload.host.nr)
 		vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, vmx->msr_autoload.host.nr);
 	if (vmx->msr_autoload.guest.nr)
 		vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, vmx->msr_autoload.guest.nr);
 
 	if (vm_fail) {
+		preempt_enable();
 		WARN_ON_ONCE(vmcs_read32(VM_INSTRUCTION_ERROR) !=
 			     VMXERR_ENTRY_INVALID_CONTROL_FIELD);
 		return 1;
@@ -2811,6 +2818,7 @@ static int nested_vmx_check_vmentry_hw(s
 	local_irq_enable();
 	if (hw_breakpoint_active())
 		set_debugreg(__this_cpu_read(cpu_dr7), 7);
+	preempt_enable();
 
 	/*
 	 * A non-failing VMEntry means we somehow entered guest mode with
@@ -2891,9 +2899,6 @@ static void nested_get_vmcs12_pages(stru
 			 */
 			vmcs_clear_bits(CPU_BASED_VM_EXEC_CONTROL,
 					CPU_BASED_TPR_SHADOW);
-		} else {
-			printk("bad virtual-APIC page address\n");
-			dump_vmcs();
 		}
 	}
 
@@ -4340,7 +4345,6 @@ static inline void nested_release_vmcs12
 		/* copy to memory all shadowed fields in case
 		   they were modified */
 		copy_shadow_to_vmcs12(vmx);
-		vmx->nested.need_vmcs12_sync = false;
 		vmx_disable_shadow_vmcs(vmx);
 	}
 	vmx->nested.posted_intr_nv = -1;
@@ -5467,7 +5471,7 @@ static int vmx_set_nested_state(struct k
 	    vmcs12->vmcs_link_pointer != -1ull) {
 		struct vmcs12 *shadow_vmcs12 = get_shadow_vmcs12(vcpu);
 
-		if (kvm_state->size < sizeof(*kvm_state) + 2 * sizeof(*vmcs12))
+		if (kvm_state->size < sizeof(*kvm_state) + VMCS12_SIZE + sizeof(*vmcs12))
 			return -EINVAL;
 
 		if (copy_from_user(shadow_vmcs12,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/vmx/pmu_intel.c linux-libre-5.1.21-gnu/arch/x86/kvm/vmx/pmu_intel.c
--- linux-libre-5.1-gnu/arch/x86/kvm/vmx/pmu_intel.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/vmx/pmu_intel.c	2019-07-28 02:28:39.000000000 -0400
@@ -126,7 +126,7 @@ static int intel_is_valid_msr_idx(struct
 }
 
 static struct kvm_pmc *intel_msr_idx_to_pmc(struct kvm_vcpu *vcpu,
-					    unsigned idx)
+					    unsigned idx, u64 *mask)
 {
 	struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
 	bool fixed = idx & (1u << 30);
@@ -138,6 +138,7 @@ static struct kvm_pmc *intel_msr_idx_to_
 	if (fixed && idx >= pmu->nr_arch_fixed_counters)
 		return NULL;
 	counters = fixed ? pmu->fixed_counters : pmu->gp_counters;
+	*mask &= pmu->counter_bitmask[fixed ? KVM_PMC_FIXED : KVM_PMC_GP];
 
 	return &counters[idx];
 }
@@ -183,9 +184,13 @@ static int intel_pmu_get_msr(struct kvm_
 		*data = pmu->global_ovf_ctrl;
 		return 0;
 	default:
-		if ((pmc = get_gp_pmc(pmu, msr, MSR_IA32_PERFCTR0)) ||
-		    (pmc = get_fixed_pmc(pmu, msr))) {
-			*data = pmc_read_counter(pmc);
+		if ((pmc = get_gp_pmc(pmu, msr, MSR_IA32_PERFCTR0))) {
+			u64 val = pmc_read_counter(pmc);
+			*data = val & pmu->counter_bitmask[KVM_PMC_GP];
+			return 0;
+		} else if ((pmc = get_fixed_pmc(pmu, msr))) {
+			u64 val = pmc_read_counter(pmc);
+			*data = val & pmu->counter_bitmask[KVM_PMC_FIXED];
 			return 0;
 		} else if ((pmc = get_gp_pmc(pmu, msr, MSR_P6_EVNTSEL0))) {
 			*data = pmc->eventsel;
@@ -235,11 +240,14 @@ static int intel_pmu_set_msr(struct kvm_
 		}
 		break;
 	default:
-		if ((pmc = get_gp_pmc(pmu, msr, MSR_IA32_PERFCTR0)) ||
-		    (pmc = get_fixed_pmc(pmu, msr))) {
-			if (!msr_info->host_initiated)
-				data = (s64)(s32)data;
-			pmc->counter += data - pmc_read_counter(pmc);
+		if ((pmc = get_gp_pmc(pmu, msr, MSR_IA32_PERFCTR0))) {
+			if (msr_info->host_initiated)
+				pmc->counter = data;
+			else
+				pmc->counter = (s32)data;
+			return 0;
+		} else if ((pmc = get_fixed_pmc(pmu, msr))) {
+			pmc->counter = data;
 			return 0;
 		} else if ((pmc = get_gp_pmc(pmu, msr, MSR_P6_EVNTSEL0))) {
 			if (data == pmc->eventsel)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/vmx/vmx.c linux-libre-5.1.21-gnu/arch/x86/kvm/vmx/vmx.c
--- linux-libre-5.1-gnu/arch/x86/kvm/vmx/vmx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/vmx/vmx.c	2019-07-28 02:28:39.000000000 -0400
@@ -114,6 +114,9 @@ static u64 __read_mostly host_xss;
 bool __read_mostly enable_pml = 1;
 module_param_named(pml, enable_pml, bool, S_IRUGO);
 
+static bool __read_mostly dump_invalid_vmcs = 0;
+module_param(dump_invalid_vmcs, bool, 0644);
+
 #define MSR_BITMAP_MODE_X2APIC		1
 #define MSR_BITMAP_MODE_X2APIC_APICV	2
 
@@ -1715,7 +1718,10 @@ static int vmx_get_msr(struct kvm_vcpu *
 		return vmx_get_vmx_msr(&vmx->nested.msrs, msr_info->index,
 				       &msr_info->data);
 	case MSR_IA32_XSS:
-		if (!vmx_xsaves_supported())
+		if (!vmx_xsaves_supported() ||
+		    (!msr_info->host_initiated &&
+		     !(guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
+		       guest_cpuid_has(vcpu, X86_FEATURE_XSAVES))))
 			return 1;
 		msr_info->data = vcpu->arch.ia32_xss;
 		break;
@@ -1926,7 +1932,10 @@ static int vmx_set_msr(struct kvm_vcpu *
 			return 1;
 		return vmx_set_vmx_msr(vcpu, msr_index, data);
 	case MSR_IA32_XSS:
-		if (!vmx_xsaves_supported())
+		if (!vmx_xsaves_supported() ||
+		    (!msr_info->host_initiated &&
+		     !(guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
+		       guest_cpuid_has(vcpu, X86_FEATURE_XSAVES))))
 			return 1;
 		/*
 		 * The only supported bit as of Skylake is bit 8, but
@@ -5605,15 +5614,24 @@ static void vmx_dump_dtsel(char *name, u
 
 void dump_vmcs(void)
 {
-	u32 vmentry_ctl = vmcs_read32(VM_ENTRY_CONTROLS);
-	u32 vmexit_ctl = vmcs_read32(VM_EXIT_CONTROLS);
-	u32 cpu_based_exec_ctrl = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
-	u32 pin_based_exec_ctrl = vmcs_read32(PIN_BASED_VM_EXEC_CONTROL);
-	u32 secondary_exec_control = 0;
-	unsigned long cr4 = vmcs_readl(GUEST_CR4);
-	u64 efer = vmcs_read64(GUEST_IA32_EFER);
+	u32 vmentry_ctl, vmexit_ctl;
+	u32 cpu_based_exec_ctrl, pin_based_exec_ctrl, secondary_exec_control;
+	unsigned long cr4;
+	u64 efer;
 	int i, n;
 
+	if (!dump_invalid_vmcs) {
+		pr_warn_ratelimited("set kvm_intel.dump_invalid_vmcs=1 to dump internal KVM state.\n");
+		return;
+	}
+
+	vmentry_ctl = vmcs_read32(VM_ENTRY_CONTROLS);
+	vmexit_ctl = vmcs_read32(VM_EXIT_CONTROLS);
+	cpu_based_exec_ctrl = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
+	pin_based_exec_ctrl = vmcs_read32(PIN_BASED_VM_EXEC_CONTROL);
+	cr4 = vmcs_readl(GUEST_CR4);
+	efer = vmcs_read64(GUEST_IA32_EFER);
+	secondary_exec_control = 0;
 	if (cpu_has_secondary_exec_ctrls())
 		secondary_exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
 
@@ -6090,28 +6108,21 @@ static void vmx_apicv_post_state_restore
 
 static void vmx_complete_atomic_exit(struct vcpu_vmx *vmx)
 {
-	u32 exit_intr_info = 0;
-	u16 basic_exit_reason = (u16)vmx->exit_reason;
-
-	if (!(basic_exit_reason == EXIT_REASON_MCE_DURING_VMENTRY
-	      || basic_exit_reason == EXIT_REASON_EXCEPTION_NMI))
+	if (vmx->exit_reason != EXIT_REASON_EXCEPTION_NMI)
 		return;
 
-	if (!(vmx->exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY))
-		exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
-	vmx->exit_intr_info = exit_intr_info;
+	vmx->exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
 
 	/* if exit due to PF check for async PF */
-	if (is_page_fault(exit_intr_info))
+	if (is_page_fault(vmx->exit_intr_info))
 		vmx->vcpu.arch.apf.host_apf_reason = kvm_read_and_reset_pf_reason();
 
 	/* Handle machine checks before interrupts are enabled */
-	if (basic_exit_reason == EXIT_REASON_MCE_DURING_VMENTRY ||
-	    is_machine_check(exit_intr_info))
+	if (is_machine_check(vmx->exit_intr_info))
 		kvm_machine_check();
 
 	/* We need to handle NMIs before interrupts are enabled */
-	if (is_nmi(exit_intr_info)) {
+	if (is_nmi(vmx->exit_intr_info)) {
 		kvm_before_interrupt(&vmx->vcpu);
 		asm("int $2");
 		kvm_after_interrupt(&vmx->vcpu);
@@ -6431,8 +6442,11 @@ static void vmx_vcpu_run(struct kvm_vcpu
 	 */
 	x86_spec_ctrl_set_guest(vmx->spec_ctrl, 0);
 
+	/* L1D Flush includes CPU buffer clear to mitigate MDS */
 	if (static_branch_unlikely(&vmx_l1d_should_flush))
 		vmx_l1d_flush(vcpu);
+	else if (static_branch_unlikely(&mds_user_clear))
+		mds_clear_cpu_buffers();
 
 	if (vcpu->arch.cr2 != read_cr2())
 		write_cr2(vcpu->arch.cr2);
@@ -6511,6 +6525,9 @@ static void vmx_vcpu_run(struct kvm_vcpu
 	vmx->idt_vectoring_info = 0;
 
 	vmx->exit_reason = vmx->fail ? 0xdead : vmcs_read32(VM_EXIT_REASON);
+	if ((u16)vmx->exit_reason == EXIT_REASON_MCE_DURING_VMENTRY)
+		kvm_machine_check();
+
 	if (vmx->fail || (vmx->exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY))
 		return;
 
@@ -6668,8 +6685,8 @@ free_partial_vcpu:
 	return ERR_PTR(err);
 }
 
-#define L1TF_MSG_SMT "L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details.\n"
-#define L1TF_MSG_L1D "L1TF CPU bug present and virtualization mitigation disabled, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details.\n"
+#define L1TF_MSG_SMT "L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details.\n"
+#define L1TF_MSG_L1D "L1TF CPU bug present and virtualization mitigation disabled, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details.\n"
 
 static int vmx_vm_init(struct kvm *kvm)
 {
@@ -6853,30 +6870,6 @@ static void nested_vmx_entry_exit_ctls_u
 	}
 }
 
-static bool guest_cpuid_has_pmu(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *entry;
-	union cpuid10_eax eax;
-
-	entry = kvm_find_cpuid_entry(vcpu, 0xa, 0);
-	if (!entry)
-		return false;
-
-	eax.full = entry->eax;
-	return (eax.split.version_id > 0);
-}
-
-static void nested_vmx_procbased_ctls_update(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-	bool pmu_enabled = guest_cpuid_has_pmu(vcpu);
-
-	if (pmu_enabled)
-		vmx->nested.msrs.procbased_ctls_high |= CPU_BASED_RDPMC_EXITING;
-	else
-		vmx->nested.msrs.procbased_ctls_high &= ~CPU_BASED_RDPMC_EXITING;
-}
-
 static void update_intel_pt_cfg(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -6965,7 +6958,6 @@ static void vmx_cpuid_update(struct kvm_
 	if (nested_vmx_allowed(vcpu)) {
 		nested_vmx_cr_fixed1_bits_update(vcpu);
 		nested_vmx_entry_exit_ctls_update(vcpu);
-		nested_vmx_procbased_ctls_update(vcpu);
 	}
 
 	if (boot_cpu_has(X86_FEATURE_INTEL_PT) &&
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/vmx/vmx.h linux-libre-5.1.21-gnu/arch/x86/kvm/vmx/vmx.h
--- linux-libre-5.1-gnu/arch/x86/kvm/vmx/vmx.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/vmx/vmx.h	2019-07-28 02:28:39.000000000 -0400
@@ -314,6 +314,7 @@ void vmx_set_nmi_mask(struct kvm_vcpu *v
 void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu);
 struct shared_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr);
 void pt_update_intercept_for_msr(struct vcpu_vmx *vmx);
+void vmx_update_host_rsp(struct vcpu_vmx *vmx, unsigned long host_rsp);
 
 #define POSTED_INTR_ON  0
 #define POSTED_INTR_SN  1
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/kvm/x86.c linux-libre-5.1.21-gnu/arch/x86/kvm/x86.c
--- linux-libre-5.1-gnu/arch/x86/kvm/x86.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/kvm/x86.c	2019-07-28 02:28:39.000000000 -0400
@@ -143,7 +143,7 @@ module_param(tsc_tolerance_ppm, uint, S_
  * tuning, i.e. allows priveleged userspace to set an exact advancement time.
  */
 static int __read_mostly lapic_timer_advance_ns = -1;
-module_param(lapic_timer_advance_ns, uint, S_IRUGO | S_IWUSR);
+module_param(lapic_timer_advance_ns, int, S_IRUGO | S_IWUSR);
 
 static bool __read_mostly vector_hashing = true;
 module_param(vector_hashing, bool, S_IRUGO);
@@ -1262,31 +1262,42 @@ static int do_get_msr_feature(struct kvm
 	return 0;
 }
 
-bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer)
+static bool __kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer)
 {
-	if (efer & efer_reserved_bits)
-		return false;
-
 	if (efer & EFER_FFXSR && !guest_cpuid_has(vcpu, X86_FEATURE_FXSR_OPT))
-			return false;
+		return false;
 
 	if (efer & EFER_SVME && !guest_cpuid_has(vcpu, X86_FEATURE_SVM))
-			return false;
+		return false;
 
 	return true;
+
+}
+bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer)
+{
+	if (efer & efer_reserved_bits)
+		return false;
+
+	return __kvm_valid_efer(vcpu, efer);
 }
 EXPORT_SYMBOL_GPL(kvm_valid_efer);
 
-static int set_efer(struct kvm_vcpu *vcpu, u64 efer)
+static int set_efer(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 {
 	u64 old_efer = vcpu->arch.efer;
+	u64 efer = msr_info->data;
 
-	if (!kvm_valid_efer(vcpu, efer))
+	if (efer & efer_reserved_bits)
 		return 1;
 
-	if (is_paging(vcpu)
-	    && (vcpu->arch.efer & EFER_LME) != (efer & EFER_LME))
-		return 1;
+	if (!msr_info->host_initiated) {
+		if (!__kvm_valid_efer(vcpu, efer))
+			return 1;
+
+		if (is_paging(vcpu) &&
+		    (vcpu->arch.efer & EFER_LME) != (efer & EFER_LME))
+			return 1;
+	}
 
 	efer &= ~EFER_LMA;
 	efer |= vcpu->arch.efer & EFER_LMA;
@@ -1536,7 +1547,7 @@ static int set_tsc_khz(struct kvm_vcpu *
 			vcpu->arch.tsc_always_catchup = 1;
 			return 0;
 		} else {
-			WARN(1, "user requested TSC rate below hardware speed\n");
+			pr_warn_ratelimited("user requested TSC rate below hardware speed\n");
 			return -1;
 		}
 	}
@@ -1546,8 +1557,8 @@ static int set_tsc_khz(struct kvm_vcpu *
 				user_tsc_khz, tsc_khz);
 
 	if (ratio == 0 || ratio >= kvm_max_tsc_scaling_ratio) {
-		WARN_ONCE(1, "Invalid TSC scaling ratio - virtual-tsc-khz=%u\n",
-			  user_tsc_khz);
+		pr_warn_ratelimited("Invalid TSC scaling ratio - virtual-tsc-khz=%u\n",
+			            user_tsc_khz);
 		return -1;
 	}
 
@@ -2456,7 +2467,7 @@ int kvm_set_msr_common(struct kvm_vcpu *
 		vcpu->arch.arch_capabilities = data;
 		break;
 	case MSR_EFER:
-		return set_efer(vcpu, data);
+		return set_efer(vcpu, msr_info);
 	case MSR_K7_HWCR:
 		data &= ~(u64)0x40;	/* ignore flush filter disable */
 		data &= ~(u64)0x100;	/* ignore ignne emulation enable */
@@ -3079,6 +3090,9 @@ int kvm_vm_ioctl_check_extension(struct
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
 		break;
+	case KVM_CAP_MAX_VCPU_ID:
+		r = KVM_MAX_VCPU_ID;
+		break;
 	case KVM_CAP_NR_MEMSLOTS:
 		r = KVM_USER_MEM_SLOTS;
 		break;
@@ -8158,7 +8172,7 @@ static int complete_emulated_mmio(struct
 static void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
 {
 	preempt_disable();
-	copy_fpregs_to_fpstate(&current->thread.fpu);
+	copy_fpregs_to_fpstate(&vcpu->arch.user_fpu);
 	/* PKRU is separately restored in kvm_x86_ops->run.  */
 	__copy_kernel_to_fpregs(&vcpu->arch.guest_fpu->state,
 				~XFEATURE_MASK_PKRU);
@@ -8171,7 +8185,7 @@ static void kvm_put_guest_fpu(struct kvm
 {
 	preempt_disable();
 	copy_fpregs_to_fpstate(vcpu->arch.guest_fpu);
-	copy_kernel_to_fpregs(&current->thread.fpu.state);
+	copy_kernel_to_fpregs(&vcpu->arch.user_fpu.state);
 	preempt_enable();
 	++vcpu->stat.fpu_reload;
 	trace_kvm_fpu(0);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/lib/insn-eval.c linux-libre-5.1.21-gnu/arch/x86/lib/insn-eval.c
--- linux-libre-5.1-gnu/arch/x86/lib/insn-eval.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/lib/insn-eval.c	2019-07-28 02:28:39.000000000 -0400
@@ -557,7 +557,8 @@ static int get_reg_offset_16(struct insn
 }
 
 /**
- * get_desc() - Obtain pointer to a segment descriptor
+ * get_desc() - Obtain contents of a segment descriptor
+ * @out:	Segment descriptor contents on success
  * @sel:	Segment selector
  *
  * Given a segment selector, obtain a pointer to the segment descriptor.
@@ -565,18 +566,18 @@ static int get_reg_offset_16(struct insn
  *
  * Returns:
  *
- * Pointer to segment descriptor on success.
+ * True on success, false on failure.
  *
  * NULL on error.
  */
-static struct desc_struct *get_desc(unsigned short sel)
+static bool get_desc(struct desc_struct *out, unsigned short sel)
 {
 	struct desc_ptr gdt_desc = {0, 0};
 	unsigned long desc_base;
 
 #ifdef CONFIG_MODIFY_LDT_SYSCALL
 	if ((sel & SEGMENT_TI_MASK) == SEGMENT_LDT) {
-		struct desc_struct *desc = NULL;
+		bool success = false;
 		struct ldt_struct *ldt;
 
 		/* Bits [15:3] contain the index of the desired entry. */
@@ -584,12 +585,14 @@ static struct desc_struct *get_desc(unsi
 
 		mutex_lock(&current->active_mm->context.lock);
 		ldt = current->active_mm->context.ldt;
-		if (ldt && sel < ldt->nr_entries)
-			desc = &ldt->entries[sel];
+		if (ldt && sel < ldt->nr_entries) {
+			*out = ldt->entries[sel];
+			success = true;
+		}
 
 		mutex_unlock(&current->active_mm->context.lock);
 
-		return desc;
+		return success;
 	}
 #endif
 	native_store_gdt(&gdt_desc);
@@ -604,9 +607,10 @@ static struct desc_struct *get_desc(unsi
 	desc_base = sel & ~(SEGMENT_RPL_MASK | SEGMENT_TI_MASK);
 
 	if (desc_base > gdt_desc.size)
-		return NULL;
+		return false;
 
-	return (struct desc_struct *)(gdt_desc.address + desc_base);
+	*out = *(struct desc_struct *)(gdt_desc.address + desc_base);
+	return true;
 }
 
 /**
@@ -628,7 +632,7 @@ static struct desc_struct *get_desc(unsi
  */
 unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx)
 {
-	struct desc_struct *desc;
+	struct desc_struct desc;
 	short sel;
 
 	sel = get_segment_selector(regs, seg_reg_idx);
@@ -666,11 +670,10 @@ unsigned long insn_get_seg_base(struct p
 	if (!sel)
 		return -1L;
 
-	desc = get_desc(sel);
-	if (!desc)
+	if (!get_desc(&desc, sel))
 		return -1L;
 
-	return get_desc_base(desc);
+	return get_desc_base(&desc);
 }
 
 /**
@@ -692,7 +695,7 @@ unsigned long insn_get_seg_base(struct p
  */
 static unsigned long get_seg_limit(struct pt_regs *regs, int seg_reg_idx)
 {
-	struct desc_struct *desc;
+	struct desc_struct desc;
 	unsigned long limit;
 	short sel;
 
@@ -706,8 +709,7 @@ static unsigned long get_seg_limit(struc
 	if (!sel)
 		return 0;
 
-	desc = get_desc(sel);
-	if (!desc)
+	if (!get_desc(&desc, sel))
 		return 0;
 
 	/*
@@ -716,8 +718,8 @@ static unsigned long get_seg_limit(struc
 	 * not tested when checking the segment limits. In practice,
 	 * this means that the segment ends in (limit << 12) + 0xfff.
 	 */
-	limit = get_desc_limit(desc);
-	if (desc->g)
+	limit = get_desc_limit(&desc);
+	if (desc.g)
 		limit = (limit << 12) + 0xfff;
 
 	return limit;
@@ -741,7 +743,7 @@ static unsigned long get_seg_limit(struc
  */
 int insn_get_code_seg_params(struct pt_regs *regs)
 {
-	struct desc_struct *desc;
+	struct desc_struct desc;
 	short sel;
 
 	if (v8086_mode(regs))
@@ -752,8 +754,7 @@ int insn_get_code_seg_params(struct pt_r
 	if (sel < 0)
 		return sel;
 
-	desc = get_desc(sel);
-	if (!desc)
+	if (!get_desc(&desc, sel))
 		return -EINVAL;
 
 	/*
@@ -761,10 +762,10 @@ int insn_get_code_seg_params(struct pt_r
 	 * determines whether a segment contains data or code. If this is a data
 	 * segment, return error.
 	 */
-	if (!(desc->type & BIT(3)))
+	if (!(desc.type & BIT(3)))
 		return -EINVAL;
 
-	switch ((desc->l << 1) | desc->d) {
+	switch ((desc.l << 1) | desc.d) {
 	case 0: /*
 		 * Legacy mode. CS.L=0, CS.D=0. Address and operand size are
 		 * both 16-bit.
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/lib/memcpy_64.S linux-libre-5.1.21-gnu/arch/x86/lib/memcpy_64.S
--- linux-libre-5.1-gnu/arch/x86/lib/memcpy_64.S	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/lib/memcpy_64.S	2019-07-28 02:28:39.000000000 -0400
@@ -257,6 +257,7 @@ ENTRY(__memcpy_mcsafe)
 	/* Copy successful. Return zero */
 .L_done_memcpy_trap:
 	xorl %eax, %eax
+.L_done:
 	ret
 ENDPROC(__memcpy_mcsafe)
 EXPORT_SYMBOL_GPL(__memcpy_mcsafe)
@@ -273,7 +274,7 @@ EXPORT_SYMBOL_GPL(__memcpy_mcsafe)
 	addl	%edx, %ecx
 .E_trailing_bytes:
 	mov	%ecx, %eax
-	ret
+	jmp	.L_done
 
 	/*
 	 * For write fault handling, given the destination is unaligned,
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/Makefile linux-libre-5.1.21-gnu/arch/x86/Makefile
--- linux-libre-5.1-gnu/arch/x86/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -47,7 +47,7 @@ export REALMODE_CFLAGS
 export BITS
 
 ifdef CONFIG_X86_NEED_RELOCS
-        LDFLAGS_vmlinux := --emit-relocs
+        LDFLAGS_vmlinux := --emit-relocs --discard-none
 endif
 
 #
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/mm/fault.c linux-libre-5.1.21-gnu/arch/x86/mm/fault.c
--- linux-libre-5.1-gnu/arch/x86/mm/fault.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/mm/fault.c	2019-07-28 02:28:39.000000000 -0400
@@ -359,8 +359,6 @@ static noinline int vmalloc_fault(unsign
 	if (!(address >= VMALLOC_START && address < VMALLOC_END))
 		return -1;
 
-	WARN_ON_ONCE(in_nmi());
-
 	/*
 	 * Copy kernel mappings over when needed. This can also
 	 * happen within a race in page table update. In the later
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/mm/kasan_init_64.c linux-libre-5.1.21-gnu/arch/x86/mm/kasan_init_64.c
--- linux-libre-5.1-gnu/arch/x86/mm/kasan_init_64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/mm/kasan_init_64.c	2019-07-28 02:28:39.000000000 -0400
@@ -199,7 +199,7 @@ static inline p4d_t *early_p4d_offset(pg
 	if (!pgtable_l5_enabled())
 		return (p4d_t *)pgd;
 
-	p4d = __pa_nodebug(pgd_val(*pgd)) & PTE_PFN_MASK;
+	p4d = pgd_val(*pgd) & PTE_PFN_MASK;
 	p4d += __START_KERNEL_map - phys_base;
 	return (p4d_t *)p4d + p4d_index(addr);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/mm/kaslr.c linux-libre-5.1.21-gnu/arch/x86/mm/kaslr.c
--- linux-libre-5.1-gnu/arch/x86/mm/kaslr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/mm/kaslr.c	2019-07-28 02:28:39.000000000 -0400
@@ -52,7 +52,7 @@ static __initdata struct kaslr_memory_re
 } kaslr_regions[] = {
 	{ &page_offset_base, 0 },
 	{ &vmalloc_base, 0 },
-	{ &vmemmap_base, 1 },
+	{ &vmemmap_base, 0 },
 };
 
 /* Get size in bytes used by the memory region */
@@ -78,6 +78,7 @@ void __init kernel_randomize_memory(void
 	unsigned long rand, memory_tb;
 	struct rnd_state rand_state;
 	unsigned long remain_entropy;
+	unsigned long vmemmap_size;
 
 	vaddr_start = pgtable_l5_enabled() ? __PAGE_OFFSET_BASE_L5 : __PAGE_OFFSET_BASE_L4;
 	vaddr = vaddr_start;
@@ -109,6 +110,14 @@ void __init kernel_randomize_memory(void
 	if (memory_tb < kaslr_regions[0].size_tb)
 		kaslr_regions[0].size_tb = memory_tb;
 
+	/*
+	 * Calculate the vmemmap region size in TBs, aligned to a TB
+	 * boundary.
+	 */
+	vmemmap_size = (kaslr_regions[0].size_tb << (TB_SHIFT - PAGE_SHIFT)) *
+			sizeof(struct page);
+	kaslr_regions[2].size_tb = DIV_ROUND_UP(vmemmap_size, 1UL << TB_SHIFT);
+
 	/* Calculate entropy available between regions */
 	remain_entropy = vaddr_end - vaddr_start;
 	for (i = 0; i < ARRAY_SIZE(kaslr_regions); i++)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/mm/mpx.c linux-libre-5.1.21-gnu/arch/x86/mm/mpx.c
--- linux-libre-5.1-gnu/arch/x86/mm/mpx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/mm/mpx.c	2019-07-28 02:28:39.000000000 -0400
@@ -881,9 +881,10 @@ static int mpx_unmap_tables(struct mm_st
  * the virtual address region start...end have already been split if
  * necessary, and the 'vma' is the first vma in this range (start -> end).
  */
-void mpx_notify_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
-		unsigned long start, unsigned long end)
+void mpx_notify_unmap(struct mm_struct *mm, unsigned long start,
+		      unsigned long end)
 {
+	struct vm_area_struct *vma;
 	int ret;
 
 	/*
@@ -902,11 +903,12 @@ void mpx_notify_unmap(struct mm_struct *
 	 * which should not occur normally. Being strict about it here
 	 * helps ensure that we do not have an exploitable stack overflow.
 	 */
-	do {
+	vma = find_vma(mm, start);
+	while (vma && vma->vm_start < end) {
 		if (vma->vm_flags & VM_MPX)
 			return;
 		vma = vma->vm_next;
-	} while (vma && vma->vm_start < end);
+	}
 
 	ret = mpx_unmap_tables(mm, start, end);
 	if (ret)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/mm/pti.c linux-libre-5.1.21-gnu/arch/x86/mm/pti.c
--- linux-libre-5.1-gnu/arch/x86/mm/pti.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/mm/pti.c	2019-07-28 02:28:39.000000000 -0400
@@ -35,6 +35,7 @@
 #include <linux/spinlock.h>
 #include <linux/mm.h>
 #include <linux/uaccess.h>
+#include <linux/cpu.h>
 
 #include <asm/cpufeature.h>
 #include <asm/hypervisor.h>
@@ -115,7 +116,8 @@ void __init pti_check_boottime_disable(v
 		}
 	}
 
-	if (cmdline_find_option_bool(boot_command_line, "nopti")) {
+	if (cmdline_find_option_bool(boot_command_line, "nopti") ||
+	    cpu_mitigations_off()) {
 		pti_mode = PTI_FORCE_OFF;
 		pti_print_if_insecure("disabled on command line.");
 		return;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/net/bpf_jit_comp.c linux-libre-5.1.21-gnu/arch/x86/net/bpf_jit_comp.c
--- linux-libre-5.1-gnu/arch/x86/net/bpf_jit_comp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/net/bpf_jit_comp.c	2019-07-28 02:28:39.000000000 -0400
@@ -190,9 +190,7 @@ struct jit_context {
 #define BPF_MAX_INSN_SIZE	128
 #define BPF_INSN_SAFETY		64
 
-#define AUX_STACK_SPACE		40 /* Space for RBX, R13, R14, R15, tailcnt */
-
-#define PROLOGUE_SIZE		37
+#define PROLOGUE_SIZE		20
 
 /*
  * Emit x86-64 prologue code for BPF program and check its size.
@@ -203,44 +201,19 @@ static void emit_prologue(u8 **pprog, u3
 	u8 *prog = *pprog;
 	int cnt = 0;
 
-	/* push rbp */
-	EMIT1(0x55);
-
-	/* mov rbp,rsp */
-	EMIT3(0x48, 0x89, 0xE5);
-
-	/* sub rsp, rounded_stack_depth + AUX_STACK_SPACE */
-	EMIT3_off32(0x48, 0x81, 0xEC,
-		    round_up(stack_depth, 8) + AUX_STACK_SPACE);
-
-	/* sub rbp, AUX_STACK_SPACE */
-	EMIT4(0x48, 0x83, 0xED, AUX_STACK_SPACE);
-
-	/* mov qword ptr [rbp+0],rbx */
-	EMIT4(0x48, 0x89, 0x5D, 0);
-	/* mov qword ptr [rbp+8],r13 */
-	EMIT4(0x4C, 0x89, 0x6D, 8);
-	/* mov qword ptr [rbp+16],r14 */
-	EMIT4(0x4C, 0x89, 0x75, 16);
-	/* mov qword ptr [rbp+24],r15 */
-	EMIT4(0x4C, 0x89, 0x7D, 24);
-
+	EMIT1(0x55);             /* push rbp */
+	EMIT3(0x48, 0x89, 0xE5); /* mov rbp, rsp */
+	/* sub rsp, rounded_stack_depth */
+	EMIT3_off32(0x48, 0x81, 0xEC, round_up(stack_depth, 8));
+	EMIT1(0x53);             /* push rbx */
+	EMIT2(0x41, 0x55);       /* push r13 */
+	EMIT2(0x41, 0x56);       /* push r14 */
+	EMIT2(0x41, 0x57);       /* push r15 */
 	if (!ebpf_from_cbpf) {
-		/*
-		 * Clear the tail call counter (tail_call_cnt): for eBPF tail
-		 * calls we need to reset the counter to 0. It's done in two
-		 * instructions, resetting RAX register to 0, and moving it
-		 * to the counter location.
-		 */
-
-		/* xor eax, eax */
-		EMIT2(0x31, 0xc0);
-		/* mov qword ptr [rbp+32], rax */
-		EMIT4(0x48, 0x89, 0x45, 32);
-
+		/* zero init tail_call_cnt */
+		EMIT2(0x6a, 0x00);
 		BUILD_BUG_ON(cnt != PROLOGUE_SIZE);
 	}
-
 	*pprog = prog;
 }
 
@@ -285,13 +258,13 @@ static void emit_bpf_tail_call(u8 **ppro
 	 * if (tail_call_cnt > MAX_TAIL_CALL_CNT)
 	 *	goto out;
 	 */
-	EMIT2_off32(0x8B, 0x85, 36);              /* mov eax, dword ptr [rbp + 36] */
+	EMIT2_off32(0x8B, 0x85, -36 - MAX_BPF_STACK); /* mov eax, dword ptr [rbp - 548] */
 	EMIT3(0x83, 0xF8, MAX_TAIL_CALL_CNT);     /* cmp eax, MAX_TAIL_CALL_CNT */
 #define OFFSET2 (30 + RETPOLINE_RAX_BPF_JIT_SIZE)
 	EMIT2(X86_JA, OFFSET2);                   /* ja out */
 	label2 = cnt;
 	EMIT3(0x83, 0xC0, 0x01);                  /* add eax, 1 */
-	EMIT2_off32(0x89, 0x85, 36);              /* mov dword ptr [rbp + 36], eax */
+	EMIT2_off32(0x89, 0x85, -36 - MAX_BPF_STACK); /* mov dword ptr [rbp -548], eax */
 
 	/* prog = array->ptrs[index]; */
 	EMIT4_off32(0x48, 0x8B, 0x84, 0xD6,       /* mov rax, [rsi + rdx * 8 + offsetof(...)] */
@@ -1040,19 +1013,14 @@ emit_jmp:
 			seen_exit = true;
 			/* Update cleanup_addr */
 			ctx->cleanup_addr = proglen;
-			/* mov rbx, qword ptr [rbp+0] */
-			EMIT4(0x48, 0x8B, 0x5D, 0);
-			/* mov r13, qword ptr [rbp+8] */
-			EMIT4(0x4C, 0x8B, 0x6D, 8);
-			/* mov r14, qword ptr [rbp+16] */
-			EMIT4(0x4C, 0x8B, 0x75, 16);
-			/* mov r15, qword ptr [rbp+24] */
-			EMIT4(0x4C, 0x8B, 0x7D, 24);
-
-			/* add rbp, AUX_STACK_SPACE */
-			EMIT4(0x48, 0x83, 0xC5, AUX_STACK_SPACE);
-			EMIT1(0xC9); /* leave */
-			EMIT1(0xC3); /* ret */
+			if (!bpf_prog_was_classic(bpf_prog))
+				EMIT1(0x5B); /* get rid of tail_call_cnt */
+			EMIT2(0x41, 0x5F);   /* pop r15 */
+			EMIT2(0x41, 0x5E);   /* pop r14 */
+			EMIT2(0x41, 0x5D);   /* pop r13 */
+			EMIT1(0x5B);         /* pop rbx */
+			EMIT1(0xC9);         /* leave */
+			EMIT1(0xC3);         /* ret */
 			break;
 
 		default:
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/pci/irq.c linux-libre-5.1.21-gnu/arch/x86/pci/irq.c
--- linux-libre-5.1-gnu/arch/x86/pci/irq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/pci/irq.c	2019-07-28 02:28:39.000000000 -0400
@@ -1119,6 +1119,8 @@ static const struct dmi_system_id pciirq
 
 void __init pcibios_irq_init(void)
 {
+	struct irq_routing_table *rtable = NULL;
+
 	DBG(KERN_DEBUG "PCI: IRQ init\n");
 
 	if (raw_pci_ops == NULL)
@@ -1129,8 +1131,10 @@ void __init pcibios_irq_init(void)
 	pirq_table = pirq_find_routing_table();
 
 #ifdef CONFIG_PCI_BIOS
-	if (!pirq_table && (pci_probe & PCI_BIOS_IRQ_SCAN))
+	if (!pirq_table && (pci_probe & PCI_BIOS_IRQ_SCAN)) {
 		pirq_table = pcibios_get_irq_routing_table();
+		rtable = pirq_table;
+	}
 #endif
 	if (pirq_table) {
 		pirq_peer_trick();
@@ -1145,8 +1149,10 @@ void __init pcibios_irq_init(void)
 		 * If we're using the I/O APIC, avoid using the PCI IRQ
 		 * routing table
 		 */
-		if (io_apic_assign_pci_irqs)
+		if (io_apic_assign_pci_irqs) {
+			kfree(rtable);
 			pirq_table = NULL;
+		}
 	}
 
 	x86_init.pci.fixup_irqs();
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/platform/efi/quirks.c linux-libre-5.1.21-gnu/arch/x86/platform/efi/quirks.c
--- linux-libre-5.1-gnu/arch/x86/platform/efi/quirks.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/platform/efi/quirks.c	2019-07-28 02:28:39.000000000 -0400
@@ -724,7 +724,7 @@ void efi_recover_from_page_fault(unsigne
 	 * Address range 0x0000 - 0x0fff is always mapped in the efi_pgd, so
 	 * page faulting on these addresses isn't expected.
 	 */
-	if (phys_addr >= 0x0000 && phys_addr <= 0x0fff)
+	if (phys_addr <= 0x0fff)
 		return;
 
 	/*
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/platform/pvh/enlighten.c linux-libre-5.1.21-gnu/arch/x86/platform/pvh/enlighten.c
--- linux-libre-5.1-gnu/arch/x86/platform/pvh/enlighten.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/platform/pvh/enlighten.c	2019-07-28 02:28:39.000000000 -0400
@@ -44,8 +44,6 @@ void __init __weak mem_map_via_hcall(str
 
 static void __init init_pvh_bootparams(bool xen_guest)
 {
-	memset(&pvh_bootparams, 0, sizeof(pvh_bootparams));
-
 	if ((pvh_start_info.version > 0) && (pvh_start_info.memmap_entries)) {
 		struct hvm_memmap_table_entry *ep;
 		int i;
@@ -103,7 +101,7 @@ static void __init init_pvh_bootparams(b
  * If we are trying to boot a Xen PVH guest, it is expected that the kernel
  * will have been configured to provide the required override for this routine.
  */
-void __init __weak xen_pvh_init(void)
+void __init __weak xen_pvh_init(struct boot_params *boot_params)
 {
 	xen_raw_printk("Error: Missing xen PVH initialization\n");
 	BUG();
@@ -112,7 +110,7 @@ void __init __weak xen_pvh_init(void)
 static void hypervisor_specific_init(bool xen_guest)
 {
 	if (xen_guest)
-		xen_pvh_init();
+		xen_pvh_init(&pvh_bootparams);
 }
 
 /*
@@ -131,6 +129,8 @@ void __init xen_prepare_pvh(void)
 		BUG();
 	}
 
+	memset(&pvh_bootparams, 0, sizeof(pvh_bootparams));
+
 	hypervisor_specific_init(xen_guest);
 
 	init_pvh_bootparams(xen_guest);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/platform/uv/tlb_uv.c linux-libre-5.1.21-gnu/arch/x86/platform/uv/tlb_uv.c
--- linux-libre-5.1-gnu/arch/x86/platform/uv/tlb_uv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/platform/uv/tlb_uv.c	2019-07-28 02:28:39.000000000 -0400
@@ -2133,14 +2133,19 @@ static int __init summarize_uvhub_socket
  */
 static int __init init_per_cpu(int nuvhubs, int base_part_pnode)
 {
-	unsigned char *uvhub_mask;
 	struct uvhub_desc *uvhub_descs;
+	unsigned char *uvhub_mask = NULL;
 
 	if (is_uv3_hub() || is_uv2_hub() || is_uv1_hub())
 		timeout_us = calculate_destination_timeout();
 
 	uvhub_descs = kcalloc(nuvhubs, sizeof(struct uvhub_desc), GFP_KERNEL);
+	if (!uvhub_descs)
+		goto fail;
+
 	uvhub_mask = kzalloc((nuvhubs+7)/8, GFP_KERNEL);
+	if (!uvhub_mask)
+		goto fail;
 
 	if (get_cpu_topology(base_part_pnode, uvhub_descs, uvhub_mask))
 		goto fail;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/power/cpu.c linux-libre-5.1.21-gnu/arch/x86/power/cpu.c
--- linux-libre-5.1-gnu/arch/x86/power/cpu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/power/cpu.c	2019-07-28 02:28:39.000000000 -0400
@@ -299,7 +299,17 @@ int hibernate_resume_nonboot_cpu_disable
 	 * address in its instruction pointer may not be possible to resolve
 	 * any more at that point (the page tables used by it previously may
 	 * have been overwritten by hibernate image data).
+	 *
+	 * First, make sure that we wake up all the potentially disabled SMT
+	 * threads which have been initially brought up and then put into
+	 * mwait/cpuidle sleep.
+	 * Those will be put to proper (not interfering with hibernation
+	 * resume) sleep afterwards, and the resumed kernel will decide itself
+	 * what to do with them.
 	 */
+	ret = cpuhp_smt_enable();
+	if (ret)
+		return ret;
 	smp_ops.play_dead = resume_play_dead;
 	ret = disable_nonboot_cpus();
 	smp_ops.play_dead = play_dead;
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/power/hibernate.c linux-libre-5.1.21-gnu/arch/x86/power/hibernate.c
--- linux-libre-5.1-gnu/arch/x86/power/hibernate.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/power/hibernate.c	2019-07-28 02:28:39.000000000 -0400
@@ -11,6 +11,7 @@
 #include <linux/suspend.h>
 #include <linux/scatterlist.h>
 #include <linux/kdebug.h>
+#include <linux/cpu.h>
 
 #include <crypto/hash.h>
 
@@ -246,3 +247,35 @@ out:
 	__flush_tlb_all();
 	return 0;
 }
+
+int arch_resume_nosmt(void)
+{
+	int ret = 0;
+	/*
+	 * We reached this while coming out of hibernation. This means
+	 * that SMT siblings are sleeping in hlt, as mwait is not safe
+	 * against control transition during resume (see comment in
+	 * hibernate_resume_nonboot_cpu_disable()).
+	 *
+	 * If the resumed kernel has SMT disabled, we have to take all the
+	 * SMT siblings out of hlt, and offline them again so that they
+	 * end up in mwait proper.
+	 *
+	 * Called with hotplug disabled.
+	 */
+	cpu_hotplug_enable();
+	if (cpu_smt_control == CPU_SMT_DISABLED ||
+			cpu_smt_control == CPU_SMT_FORCE_DISABLED) {
+		enum cpuhp_smt_control old = cpu_smt_control;
+
+		ret = cpuhp_smt_enable();
+		if (ret)
+			goto out;
+		ret = cpuhp_smt_disable(old);
+		if (ret)
+			goto out;
+	}
+out:
+	cpu_hotplug_disable();
+	return ret;
+}
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/xen/efi.c linux-libre-5.1.21-gnu/arch/x86/xen/efi.c
--- linux-libre-5.1-gnu/arch/x86/xen/efi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/xen/efi.c	2019-07-28 02:28:39.000000000 -0400
@@ -158,7 +158,7 @@ static enum efi_secureboot_mode xen_efi_
 	return efi_secureboot_mode_unknown;
 }
 
-void __init xen_efi_init(void)
+void __init xen_efi_init(struct boot_params *boot_params)
 {
 	efi_system_table_t *efi_systab_xen;
 
@@ -167,12 +167,12 @@ void __init xen_efi_init(void)
 	if (efi_systab_xen == NULL)
 		return;
 
-	strncpy((char *)&boot_params.efi_info.efi_loader_signature, "Xen",
-			sizeof(boot_params.efi_info.efi_loader_signature));
-	boot_params.efi_info.efi_systab = (__u32)__pa(efi_systab_xen);
-	boot_params.efi_info.efi_systab_hi = (__u32)(__pa(efi_systab_xen) >> 32);
+	strncpy((char *)&boot_params->efi_info.efi_loader_signature, "Xen",
+			sizeof(boot_params->efi_info.efi_loader_signature));
+	boot_params->efi_info.efi_systab = (__u32)__pa(efi_systab_xen);
+	boot_params->efi_info.efi_systab_hi = (__u32)(__pa(efi_systab_xen) >> 32);
 
-	boot_params.secure_boot = xen_efi_get_secureboot();
+	boot_params->secure_boot = xen_efi_get_secureboot();
 
 	set_bit(EFI_BOOT, &efi.flags);
 	set_bit(EFI_PARAVIRT, &efi.flags);
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/xen/enlighten_pv.c linux-libre-5.1.21-gnu/arch/x86/xen/enlighten_pv.c
--- linux-libre-5.1-gnu/arch/x86/xen/enlighten_pv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/xen/enlighten_pv.c	2019-07-28 02:28:39.000000000 -0400
@@ -1403,7 +1403,7 @@ asmlinkage __visible void __init xen_sta
 	/* We need this for printk timestamps */
 	xen_setup_runstate_info(0);
 
-	xen_efi_init();
+	xen_efi_init(&boot_params);
 
 	/* Start the world */
 #ifdef CONFIG_X86_32
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/xen/enlighten_pvh.c linux-libre-5.1.21-gnu/arch/x86/xen/enlighten_pvh.c
--- linux-libre-5.1-gnu/arch/x86/xen/enlighten_pvh.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/xen/enlighten_pvh.c	2019-07-28 02:28:39.000000000 -0400
@@ -13,6 +13,8 @@
 
 #include <xen/interface/memory.h>
 
+#include "xen-ops.h"
+
 /*
  * PVH variables.
  *
@@ -21,17 +23,20 @@
  */
 bool xen_pvh __attribute__((section(".data"))) = 0;
 
-void __init xen_pvh_init(void)
+void __init xen_pvh_init(struct boot_params *boot_params)
 {
 	u32 msr;
 	u64 pfn;
 
 	xen_pvh = 1;
+	xen_domain_type = XEN_HVM_DOMAIN;
 	xen_start_flags = pvh_start_info.flags;
 
 	msr = cpuid_ebx(xen_cpuid_base() + 2);
 	pfn = __pa(hypercall_page);
 	wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
+
+	xen_efi_init(boot_params);
 }
 
 void __init mem_map_via_hcall(struct boot_params *boot_params_p)
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/x86/xen/xen-ops.h linux-libre-5.1.21-gnu/arch/x86/xen/xen-ops.h
--- linux-libre-5.1-gnu/arch/x86/xen/xen-ops.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/x86/xen/xen-ops.h	2019-07-28 02:28:39.000000000 -0400
@@ -122,9 +122,9 @@ static inline void __init xen_init_vga(c
 void __init xen_init_apic(void);
 
 #ifdef CONFIG_XEN_EFI
-extern void xen_efi_init(void);
+extern void xen_efi_init(struct boot_params *boot_params);
 #else
-static inline void __init xen_efi_init(void)
+static inline void __init xen_efi_init(struct boot_params *boot_params)
 {
 }
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/arch/xtensa/kernel/setup.c linux-libre-5.1.21-gnu/arch/xtensa/kernel/setup.c
--- linux-libre-5.1-gnu/arch/xtensa/kernel/setup.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/arch/xtensa/kernel/setup.c	2019-07-28 02:28:39.000000000 -0400
@@ -310,7 +310,8 @@ extern char _SecondaryResetVector_text_s
 extern char _SecondaryResetVector_text_end;
 #endif
 
-static inline int mem_reserve(unsigned long start, unsigned long end)
+static inline int __init_memblock mem_reserve(unsigned long start,
+					      unsigned long end)
 {
 	return memblock_reserve(start, end - start);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/block/bfq-iosched.c linux-libre-5.1.21-gnu/block/bfq-iosched.c
--- linux-libre-5.1-gnu/block/bfq-iosched.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/bfq-iosched.c	2019-07-28 02:28:39.000000000 -0400
@@ -2545,6 +2545,8 @@ static void bfq_arm_slice_timer(struct b
 	if (BFQQ_SEEKY(bfqq) && bfqq->wr_coeff == 1 &&
 	    bfq_symmetric_scenario(bfqd))
 		sl = min_t(u64, sl, BFQ_MIN_TT);
+	else if (bfqq->wr_coeff > 1)
+		sl = max_t(u32, sl, 20ULL * NSEC_PER_MSEC);
 
 	bfqd->last_idling_start = ktime_get();
 	hrtimer_start(&bfqd->idle_slice_timer, ns_to_ktime(sl),
@@ -4263,6 +4265,7 @@ static void bfq_exit_icq_bfqq(struct bfq
 		unsigned long flags;
 
 		spin_lock_irqsave(&bfqd->lock, flags);
+		bfqq->bic = NULL;
 		bfq_exit_bfqq(bfqd, bfqq);
 		bic_set_bfqq(bic, NULL, is_sync);
 		spin_unlock_irqrestore(&bfqd->lock, flags);
diff -druNp --no-dereference linux-libre-5.1-gnu/block/bio.c linux-libre-5.1.21-gnu/block/bio.c
--- linux-libre-5.1-gnu/block/bio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/bio.c	2019-07-28 02:28:39.000000000 -0400
@@ -29,6 +29,7 @@
 #include <linux/workqueue.h>
 #include <linux/cgroup.h>
 #include <linux/blk-cgroup.h>
+#include <linux/highmem.h>
 
 #include <trace/events/block.h>
 #include "blk.h"
@@ -776,6 +777,8 @@ bool __bio_try_merge_page(struct bio *bi
 
 		if (vec_end_addr + 1 != page_addr + off)
 			return false;
+		if (xen_domain() && !xen_biovec_phys_mergeable(bv, page))
+			return false;
 		if (same_page && (vec_end_addr & PAGE_MASK) != page_addr)
 			return false;
 
@@ -1473,8 +1476,22 @@ void bio_unmap_user(struct bio *bio)
 	bio_put(bio);
 }
 
+static void bio_invalidate_vmalloc_pages(struct bio *bio)
+{
+#ifdef ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+	if (bio->bi_private && !op_is_write(bio_op(bio))) {
+		unsigned long i, len = 0;
+
+		for (i = 0; i < bio->bi_vcnt; i++)
+			len += bio->bi_io_vec[i].bv_len;
+		invalidate_kernel_vmap_range(bio->bi_private, len);
+	}
+#endif
+}
+
 static void bio_map_kern_endio(struct bio *bio)
 {
+	bio_invalidate_vmalloc_pages(bio);
 	bio_put(bio);
 }
 
@@ -1495,6 +1512,8 @@ struct bio *bio_map_kern(struct request_
 	unsigned long end = (kaddr + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	unsigned long start = kaddr >> PAGE_SHIFT;
 	const int nr_pages = end - start;
+	bool is_vmalloc = is_vmalloc_addr(data);
+	struct page *page;
 	int offset, i;
 	struct bio *bio;
 
@@ -1502,6 +1521,11 @@ struct bio *bio_map_kern(struct request_
 	if (!bio)
 		return ERR_PTR(-ENOMEM);
 
+	if (is_vmalloc) {
+		flush_kernel_vmap_range(data, len);
+		bio->bi_private = data;
+	}
+
 	offset = offset_in_page(kaddr);
 	for (i = 0; i < nr_pages; i++) {
 		unsigned int bytes = PAGE_SIZE - offset;
@@ -1512,7 +1536,11 @@ struct bio *bio_map_kern(struct request_
 		if (bytes > len)
 			bytes = len;
 
-		if (bio_add_pc_page(q, bio, virt_to_page(data), bytes,
+		if (!is_vmalloc)
+			page = virt_to_page(data);
+		else
+			page = vmalloc_to_page(data);
+		if (bio_add_pc_page(q, bio, page, bytes,
 				    offset) < bytes) {
 			/* we don't support partial mappings */
 			bio_put(bio);
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-cgroup.c linux-libre-5.1.21-gnu/block/blk-cgroup.c
--- linux-libre-5.1-gnu/block/blk-cgroup.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-cgroup.c	2019-07-28 02:28:39.000000000 -0400
@@ -1005,8 +1005,12 @@ static int blkcg_print_stat(struct seq_f
 		}
 next:
 		if (has_stats) {
-			off += scnprintf(buf+off, size-off, "\n");
-			seq_commit(sf, off);
+			if (off < size - 1) {
+				off += scnprintf(buf+off, size-off, "\n");
+				seq_commit(sf, off);
+			} else {
+				seq_commit(sf, -1);
+			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-core.c linux-libre-5.1.21-gnu/block/blk-core.c
--- linux-libre-5.1-gnu/block/blk-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -237,7 +237,6 @@ void blk_sync_queue(struct request_queue
 		struct blk_mq_hw_ctx *hctx;
 		int i;
 
-		cancel_delayed_work_sync(&q->requeue_work);
 		queue_for_each_hw_ctx(q, hctx, i)
 			cancel_delayed_work_sync(&hctx->run_work);
 	}
@@ -375,7 +374,7 @@ void blk_cleanup_queue(struct request_qu
 	blk_exit_queue(q);
 
 	if (queue_is_mq(q))
-		blk_mq_free_queue(q);
+		blk_mq_exit_queue(q);
 
 	percpu_ref_exit(&q->q_usage_counter);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk.h linux-libre-5.1.21-gnu/block/blk.h
--- linux-libre-5.1-gnu/block/blk.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk.h	2019-07-28 02:28:39.000000000 -0400
@@ -75,7 +75,7 @@ static inline bool biovec_phys_mergeable
 
 	if (addr1 + vec1->bv_len != addr2)
 		return false;
-	if (xen_domain() && !xen_biovec_phys_mergeable(vec1, vec2))
+	if (xen_domain() && !xen_biovec_phys_mergeable(vec1, vec2->bv_page))
 		return false;
 	if ((addr1 | mask) != ((addr2 + vec2->bv_len - 1) | mask))
 		return false;
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-iolatency.c linux-libre-5.1.21-gnu/block/blk-iolatency.c
--- linux-libre-5.1-gnu/block/blk-iolatency.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-iolatency.c	2019-07-28 02:28:39.000000000 -0400
@@ -617,44 +617,26 @@ static void blkcg_iolatency_done_bio(str
 
 		inflight = atomic_dec_return(&rqw->inflight);
 		WARN_ON_ONCE(inflight < 0);
-		if (iolat->min_lat_nsec == 0)
-			goto next;
-		iolatency_record_time(iolat, &bio->bi_issue, now,
-				      issue_as_root);
-		window_start = atomic64_read(&iolat->window_start);
-		if (now > window_start &&
-		    (now - window_start) >= iolat->cur_win_nsec) {
-			if (atomic64_cmpxchg(&iolat->window_start,
-					window_start, now) == window_start)
-				iolatency_check_latencies(iolat, now);
+		/*
+		 * If bi_status is BLK_STS_AGAIN, the bio wasn't actually
+		 * submitted, so do not account for it.
+		 */
+		if (iolat->min_lat_nsec && bio->bi_status != BLK_STS_AGAIN) {
+			iolatency_record_time(iolat, &bio->bi_issue, now,
+					      issue_as_root);
+			window_start = atomic64_read(&iolat->window_start);
+			if (now > window_start &&
+			    (now - window_start) >= iolat->cur_win_nsec) {
+				if (atomic64_cmpxchg(&iolat->window_start,
+					     window_start, now) == window_start)
+					iolatency_check_latencies(iolat, now);
+			}
 		}
-next:
 		wake_up(&rqw->wait);
 		blkg = blkg->parent;
 	}
 }
 
-static void blkcg_iolatency_cleanup(struct rq_qos *rqos, struct bio *bio)
-{
-	struct blkcg_gq *blkg;
-
-	blkg = bio->bi_blkg;
-	while (blkg && blkg->parent) {
-		struct rq_wait *rqw;
-		struct iolatency_grp *iolat;
-
-		iolat = blkg_to_lat(blkg);
-		if (!iolat)
-			goto next;
-
-		rqw = &iolat->rq_wait;
-		atomic_dec(&rqw->inflight);
-		wake_up(&rqw->wait);
-next:
-		blkg = blkg->parent;
-	}
-}
-
 static void blkcg_iolatency_exit(struct rq_qos *rqos)
 {
 	struct blk_iolatency *blkiolat = BLKIOLATENCY(rqos);
@@ -666,7 +648,6 @@ static void blkcg_iolatency_exit(struct
 
 static struct rq_qos_ops blkcg_iolatency_ops = {
 	.throttle = blkcg_iolatency_throttle,
-	.cleanup = blkcg_iolatency_cleanup,
 	.done_bio = blkcg_iolatency_done_bio,
 	.exit = blkcg_iolatency_exit,
 };
@@ -777,8 +758,10 @@ static int iolatency_set_min_lat_nsec(st
 
 	if (!oldval && val)
 		return 1;
-	if (oldval && !val)
+	if (oldval && !val) {
+		blkcg_clear_delay(blkg);
 		return -1;
+	}
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-mq.c linux-libre-5.1.21-gnu/block/blk-mq.c
--- linux-libre-5.1-gnu/block/blk-mq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-mq.c	2019-07-28 02:28:39.000000000 -0400
@@ -2267,12 +2267,7 @@ static void blk_mq_exit_hctx(struct requ
 	if (set->ops->exit_hctx)
 		set->ops->exit_hctx(hctx, hctx_idx);
 
-	if (hctx->flags & BLK_MQ_F_BLOCKING)
-		cleanup_srcu_struct(hctx->srcu);
-
 	blk_mq_remove_cpuhp(hctx);
-	blk_free_flush_queue(hctx->fq);
-	sbitmap_free(&hctx->ctx_map);
 }
 
 static void blk_mq_exit_hw_queues(struct request_queue *q,
@@ -2289,15 +2284,65 @@ static void blk_mq_exit_hw_queues(struct
 	}
 }
 
+static int blk_mq_hw_ctx_size(struct blk_mq_tag_set *tag_set)
+{
+	int hw_ctx_size = sizeof(struct blk_mq_hw_ctx);
+
+	BUILD_BUG_ON(ALIGN(offsetof(struct blk_mq_hw_ctx, srcu),
+			   __alignof__(struct blk_mq_hw_ctx)) !=
+		     sizeof(struct blk_mq_hw_ctx));
+
+	if (tag_set->flags & BLK_MQ_F_BLOCKING)
+		hw_ctx_size += sizeof(struct srcu_struct);
+
+	return hw_ctx_size;
+}
+
 static int blk_mq_init_hctx(struct request_queue *q,
 		struct blk_mq_tag_set *set,
 		struct blk_mq_hw_ctx *hctx, unsigned hctx_idx)
 {
-	int node;
+	hctx->queue_num = hctx_idx;
 
-	node = hctx->numa_node;
+	cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead);
+
+	hctx->tags = set->tags[hctx_idx];
+
+	if (set->ops->init_hctx &&
+	    set->ops->init_hctx(hctx, set->driver_data, hctx_idx))
+		goto unregister_cpu_notifier;
+
+	if (blk_mq_init_request(set, hctx->fq->flush_rq, hctx_idx,
+				hctx->numa_node))
+		goto exit_hctx;
+	return 0;
+
+ exit_hctx:
+	if (set->ops->exit_hctx)
+		set->ops->exit_hctx(hctx, hctx_idx);
+ unregister_cpu_notifier:
+	blk_mq_remove_cpuhp(hctx);
+	return -1;
+}
+
+static struct blk_mq_hw_ctx *
+blk_mq_alloc_hctx(struct request_queue *q, struct blk_mq_tag_set *set,
+		int node)
+{
+	struct blk_mq_hw_ctx *hctx;
+	gfp_t gfp = GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY;
+
+	hctx = kzalloc_node(blk_mq_hw_ctx_size(set), gfp, node);
+	if (!hctx)
+		goto fail_alloc_hctx;
+
+	if (!zalloc_cpumask_var_node(&hctx->cpumask, gfp, node))
+		goto free_hctx;
+
+	atomic_set(&hctx->nr_active, 0);
 	if (node == NUMA_NO_NODE)
-		node = hctx->numa_node = set->numa_node;
+		node = set->numa_node;
+	hctx->numa_node = node;
 
 	INIT_DELAYED_WORK(&hctx->run_work, blk_mq_run_work_fn);
 	spin_lock_init(&hctx->lock);
@@ -2305,58 +2350,45 @@ static int blk_mq_init_hctx(struct reque
 	hctx->queue = q;
 	hctx->flags = set->flags & ~BLK_MQ_F_TAG_SHARED;
 
-	cpuhp_state_add_instance_nocalls(CPUHP_BLK_MQ_DEAD, &hctx->cpuhp_dead);
-
-	hctx->tags = set->tags[hctx_idx];
-
 	/*
 	 * Allocate space for all possible cpus to avoid allocation at
 	 * runtime
 	 */
 	hctx->ctxs = kmalloc_array_node(nr_cpu_ids, sizeof(void *),
-			GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY, node);
+			gfp, node);
 	if (!hctx->ctxs)
-		goto unregister_cpu_notifier;
+		goto free_cpumask;
 
 	if (sbitmap_init_node(&hctx->ctx_map, nr_cpu_ids, ilog2(8),
-				GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY, node))
+				gfp, node))
 		goto free_ctxs;
-
 	hctx->nr_ctx = 0;
 
 	spin_lock_init(&hctx->dispatch_wait_lock);
 	init_waitqueue_func_entry(&hctx->dispatch_wait, blk_mq_dispatch_wake);
 	INIT_LIST_HEAD(&hctx->dispatch_wait.entry);
 
-	if (set->ops->init_hctx &&
-	    set->ops->init_hctx(hctx, set->driver_data, hctx_idx))
-		goto free_bitmap;
-
 	hctx->fq = blk_alloc_flush_queue(q, hctx->numa_node, set->cmd_size,
-			GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY);
+			gfp);
 	if (!hctx->fq)
-		goto exit_hctx;
-
-	if (blk_mq_init_request(set, hctx->fq->flush_rq, hctx_idx, node))
-		goto free_fq;
+		goto free_bitmap;
 
 	if (hctx->flags & BLK_MQ_F_BLOCKING)
 		init_srcu_struct(hctx->srcu);
+	blk_mq_hctx_kobj_init(hctx);
 
-	return 0;
+	return hctx;
 
- free_fq:
-	blk_free_flush_queue(hctx->fq);
- exit_hctx:
-	if (set->ops->exit_hctx)
-		set->ops->exit_hctx(hctx, hctx_idx);
  free_bitmap:
 	sbitmap_free(&hctx->ctx_map);
  free_ctxs:
 	kfree(hctx->ctxs);
- unregister_cpu_notifier:
-	blk_mq_remove_cpuhp(hctx);
-	return -1;
+ free_cpumask:
+	free_cpumask_var(hctx->cpumask);
+ free_hctx:
+	kfree(hctx);
+ fail_alloc_hctx:
+	return NULL;
 }
 
 static void blk_mq_init_cpu_queues(struct request_queue *q,
@@ -2634,6 +2666,8 @@ void blk_mq_release(struct request_queue
 	struct blk_mq_hw_ctx *hctx;
 	unsigned int i;
 
+	cancel_delayed_work_sync(&q->requeue_work);
+
 	/* hctx kobj stays in hctx */
 	queue_for_each_hw_ctx(q, hctx, i) {
 		if (!hctx)
@@ -2700,51 +2734,25 @@ struct request_queue *blk_mq_init_sq_que
 }
 EXPORT_SYMBOL(blk_mq_init_sq_queue);
 
-static int blk_mq_hw_ctx_size(struct blk_mq_tag_set *tag_set)
-{
-	int hw_ctx_size = sizeof(struct blk_mq_hw_ctx);
-
-	BUILD_BUG_ON(ALIGN(offsetof(struct blk_mq_hw_ctx, srcu),
-			   __alignof__(struct blk_mq_hw_ctx)) !=
-		     sizeof(struct blk_mq_hw_ctx));
-
-	if (tag_set->flags & BLK_MQ_F_BLOCKING)
-		hw_ctx_size += sizeof(struct srcu_struct);
-
-	return hw_ctx_size;
-}
-
 static struct blk_mq_hw_ctx *blk_mq_alloc_and_init_hctx(
 		struct blk_mq_tag_set *set, struct request_queue *q,
 		int hctx_idx, int node)
 {
 	struct blk_mq_hw_ctx *hctx;
 
-	hctx = kzalloc_node(blk_mq_hw_ctx_size(set),
-			GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY,
-			node);
+	hctx = blk_mq_alloc_hctx(q, set, node);
 	if (!hctx)
-		return NULL;
-
-	if (!zalloc_cpumask_var_node(&hctx->cpumask,
-				GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY,
-				node)) {
-		kfree(hctx);
-		return NULL;
-	}
-
-	atomic_set(&hctx->nr_active, 0);
-	hctx->numa_node = node;
-	hctx->queue_num = hctx_idx;
+		goto fail;
 
-	if (blk_mq_init_hctx(q, set, hctx, hctx_idx)) {
-		free_cpumask_var(hctx->cpumask);
-		kfree(hctx);
-		return NULL;
-	}
-	blk_mq_hctx_kobj_init(hctx);
+	if (blk_mq_init_hctx(q, set, hctx, hctx_idx))
+		goto free_hctx;
 
 	return hctx;
+
+ free_hctx:
+	kobject_put(&hctx->kobj);
+ fail:
+	return NULL;
 }
 
 static void blk_mq_realloc_hw_ctxs(struct blk_mq_tag_set *set,
@@ -2838,7 +2846,7 @@ struct request_queue *blk_mq_init_alloca
 		goto err_exit;
 
 	if (blk_mq_alloc_ctxs(q))
-		goto err_exit;
+		goto err_poll;
 
 	/* init q->mq_kobj and sw queues' kobjects */
 	blk_mq_sysfs_init(q);
@@ -2899,13 +2907,17 @@ err_hctxs:
 	kfree(q->queue_hw_ctx);
 err_sys_init:
 	blk_mq_sysfs_deinit(q);
+err_poll:
+	blk_stat_free_callback(q->poll_cb);
+	q->poll_cb = NULL;
 err_exit:
 	q->mq_ops = NULL;
 	return ERR_PTR(-ENOMEM);
 }
 EXPORT_SYMBOL(blk_mq_init_allocated_queue);
 
-void blk_mq_free_queue(struct request_queue *q)
+/* tags can _not_ be used after returning from blk_mq_exit_queue */
+void blk_mq_exit_queue(struct request_queue *q)
 {
 	struct blk_mq_tag_set	*set = q->tag_set;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-mq.h linux-libre-5.1.21-gnu/block/blk-mq.h
--- linux-libre-5.1-gnu/block/blk-mq.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-mq.h	2019-07-28 02:28:39.000000000 -0400
@@ -37,7 +37,7 @@ struct blk_mq_ctx {
 	struct kobject		kobj;
 } ____cacheline_aligned_in_smp;
 
-void blk_mq_free_queue(struct request_queue *q);
+void blk_mq_exit_queue(struct request_queue *q);
 int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr);
 void blk_mq_wake_waiters(struct request_queue *q);
 bool blk_mq_dispatch_rq_list(struct request_queue *, struct list_head *, bool);
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-mq-sched.c linux-libre-5.1.21-gnu/block/blk-mq-sched.c
--- linux-libre-5.1-gnu/block/blk-mq-sched.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-mq-sched.c	2019-07-28 02:28:39.000000000 -0400
@@ -413,6 +413,14 @@ void blk_mq_sched_insert_requests(struct
 				  struct list_head *list, bool run_queue_async)
 {
 	struct elevator_queue *e;
+	struct request_queue *q = hctx->queue;
+
+	/*
+	 * blk_mq_sched_insert_requests() is called from flush plug
+	 * context only, and hold one usage counter to prevent queue
+	 * from being released.
+	 */
+	percpu_ref_get(&q->q_usage_counter);
 
 	e = hctx->queue->elevator;
 	if (e && e->type->ops.insert_requests)
@@ -426,12 +434,14 @@ void blk_mq_sched_insert_requests(struct
 		if (!hctx->dispatch_busy && !e && !run_queue_async) {
 			blk_mq_try_issue_list_directly(hctx, list);
 			if (list_empty(list))
-				return;
+				goto out;
 		}
 		blk_mq_insert_requests(hctx, ctx, list);
 	}
 
 	blk_mq_run_hw_queue(hctx, run_queue_async);
+ out:
+	percpu_ref_put(&q->q_usage_counter);
 }
 
 static void blk_mq_sched_free_tags(struct blk_mq_tag_set *set,
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-mq-sysfs.c linux-libre-5.1.21-gnu/block/blk-mq-sysfs.c
--- linux-libre-5.1-gnu/block/blk-mq-sysfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-mq-sysfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -10,6 +10,7 @@
 #include <linux/smp.h>
 
 #include <linux/blk-mq.h>
+#include "blk.h"
 #include "blk-mq.h"
 #include "blk-mq-tag.h"
 
@@ -33,6 +34,11 @@ static void blk_mq_hw_sysfs_release(stru
 {
 	struct blk_mq_hw_ctx *hctx = container_of(kobj, struct blk_mq_hw_ctx,
 						  kobj);
+
+	if (hctx->flags & BLK_MQ_F_BLOCKING)
+		cleanup_srcu_struct(hctx->srcu);
+	blk_free_flush_queue(hctx->fq);
+	sbitmap_free(&hctx->ctx_map);
 	free_cpumask_var(hctx->cpumask);
 	kfree(hctx->ctxs);
 	kfree(hctx);
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-throttle.c linux-libre-5.1.21-gnu/block/blk-throttle.c
--- linux-libre-5.1-gnu/block/blk-throttle.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-throttle.c	2019-07-28 02:28:39.000000000 -0400
@@ -881,13 +881,10 @@ static bool tg_with_in_iops_limit(struct
 	unsigned long jiffy_elapsed, jiffy_wait, jiffy_elapsed_rnd;
 	u64 tmp;
 
-	jiffy_elapsed = jiffy_elapsed_rnd = jiffies - tg->slice_start[rw];
-
-	/* Slice has just started. Consider one slice interval */
-	if (!jiffy_elapsed)
-		jiffy_elapsed_rnd = tg->td->throtl_slice;
+	jiffy_elapsed = jiffies - tg->slice_start[rw];
 
-	jiffy_elapsed_rnd = roundup(jiffy_elapsed_rnd, tg->td->throtl_slice);
+	/* Round up to the next throttle slice, wait time must be nonzero */
+	jiffy_elapsed_rnd = roundup(jiffy_elapsed + 1, tg->td->throtl_slice);
 
 	/*
 	 * jiffy_elapsed_rnd should not be a big value as minimum iops can be
diff -druNp --no-dereference linux-libre-5.1-gnu/block/blk-zoned.c linux-libre-5.1.21-gnu/block/blk-zoned.c
--- linux-libre-5.1-gnu/block/blk-zoned.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/blk-zoned.c	2019-07-28 02:28:39.000000000 -0400
@@ -13,6 +13,9 @@
 #include <linux/rbtree.h>
 #include <linux/blkdev.h>
 #include <linux/blk-mq.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/sched/mm.h>
 
 #include "blk.h"
 
@@ -69,7 +72,7 @@ EXPORT_SYMBOL_GPL(__blk_req_zone_write_u
 static inline unsigned int __blkdev_nr_zones(struct request_queue *q,
 					     sector_t nr_sectors)
 {
-	unsigned long zone_sectors = blk_queue_zone_sectors(q);
+	sector_t zone_sectors = blk_queue_zone_sectors(q);
 
 	return (nr_sectors + zone_sectors - 1) >> ilog2(zone_sectors);
 }
@@ -372,22 +375,25 @@ static inline unsigned long *blk_alloc_z
  * Allocate an array of struct blk_zone to get nr_zones zone information.
  * The allocated array may be smaller than nr_zones.
  */
-static struct blk_zone *blk_alloc_zones(int node, unsigned int *nr_zones)
+static struct blk_zone *blk_alloc_zones(unsigned int *nr_zones)
 {
-	size_t size = *nr_zones * sizeof(struct blk_zone);
-	struct page *page;
-	int order;
+	struct blk_zone *zones;
+	size_t nrz = min(*nr_zones, BLK_ZONED_REPORT_MAX_ZONES);
 
-	for (order = get_order(size); order >= 0; order--) {
-		page = alloc_pages_node(node, GFP_NOIO | __GFP_ZERO, order);
-		if (page) {
-			*nr_zones = min_t(unsigned int, *nr_zones,
-				(PAGE_SIZE << order) / sizeof(struct blk_zone));
-			return page_address(page);
-		}
+	/*
+	 * GFP_KERNEL here is meaningless as the caller task context has
+	 * the PF_MEMALLOC_NOIO flag set in blk_revalidate_disk_zones()
+	 * with memalloc_noio_save().
+	 */
+	zones = kvcalloc(nrz, sizeof(struct blk_zone), GFP_KERNEL);
+	if (!zones) {
+		*nr_zones = 0;
+		return NULL;
 	}
 
-	return NULL;
+	*nr_zones = nrz;
+
+	return zones;
 }
 
 void blk_queue_free_zone_bitmaps(struct request_queue *q)
@@ -414,6 +420,7 @@ int blk_revalidate_disk_zones(struct gen
 	unsigned long *seq_zones_wlock = NULL, *seq_zones_bitmap = NULL;
 	unsigned int i, rep_nr_zones = 0, z = 0, nrz;
 	struct blk_zone *zones = NULL;
+	unsigned int noio_flag;
 	sector_t sector = 0;
 	int ret = 0;
 
@@ -426,6 +433,12 @@ int blk_revalidate_disk_zones(struct gen
 		return 0;
 	}
 
+	/*
+	 * Ensure that all memory allocations in this context are done as
+	 * if GFP_NOIO was specified.
+	 */
+	noio_flag = memalloc_noio_save();
+
 	if (!blk_queue_is_zoned(q) || !nr_zones) {
 		nr_zones = 0;
 		goto update;
@@ -442,7 +455,7 @@ int blk_revalidate_disk_zones(struct gen
 
 	/* Get zone information and initialize seq_zones_bitmap */
 	rep_nr_zones = nr_zones;
-	zones = blk_alloc_zones(q->node, &rep_nr_zones);
+	zones = blk_alloc_zones(&rep_nr_zones);
 	if (!zones)
 		goto out;
 
@@ -479,8 +492,9 @@ update:
 	blk_mq_unfreeze_queue(q);
 
 out:
-	free_pages((unsigned long)zones,
-		   get_order(rep_nr_zones * sizeof(struct blk_zone)));
+	memalloc_noio_restore(noio_flag);
+
+	kvfree(zones);
 	kfree(seq_zones_wlock);
 	kfree(seq_zones_bitmap);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/block/genhd.c linux-libre-5.1.21-gnu/block/genhd.c
--- linux-libre-5.1-gnu/block/genhd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/genhd.c	2019-07-28 02:28:39.000000000 -0400
@@ -531,6 +531,18 @@ void blk_free_devt(dev_t devt)
 	}
 }
 
+/**
+ *	We invalidate devt by assigning NULL pointer for devt in idr.
+ */
+void blk_invalidate_devt(dev_t devt)
+{
+	if (MAJOR(devt) == BLOCK_EXT_MAJOR) {
+		spin_lock_bh(&ext_devt_lock);
+		idr_replace(&ext_devt_idr, NULL, blk_mangle_minor(MINOR(devt)));
+		spin_unlock_bh(&ext_devt_lock);
+	}
+}
+
 static char *bdevt_str(dev_t devt, char *buf)
 {
 	if (MAJOR(devt) <= 0xff && MINOR(devt) <= 0xff) {
@@ -793,6 +805,13 @@ void del_gendisk(struct gendisk *disk)
 
 	if (!(disk->flags & GENHD_FL_HIDDEN))
 		blk_unregister_region(disk_devt(disk), disk->minors);
+	/*
+	 * Remove gendisk pointer from idr so that it cannot be looked up
+	 * while RCU period before freeing gendisk is running to prevent
+	 * use-after-free issues. Note that the device number stays
+	 * "in-use" until we really free the gendisk.
+	 */
+	blk_invalidate_devt(disk_devt(disk));
 
 	kobject_put(disk->part0.holder_dir);
 	kobject_put(disk->slave_dir);
diff -druNp --no-dereference linux-libre-5.1-gnu/block/partition-generic.c linux-libre-5.1.21-gnu/block/partition-generic.c
--- linux-libre-5.1-gnu/block/partition-generic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/partition-generic.c	2019-07-28 02:28:39.000000000 -0400
@@ -285,6 +285,13 @@ void delete_partition(struct gendisk *di
 	kobject_put(part->holder_dir);
 	device_del(part_to_dev(part));
 
+	/*
+	 * Remove gendisk pointer from idr so that it cannot be looked up
+	 * while RCU period before freeing gendisk is running to prevent
+	 * use-after-free issues. Note that the device number stays
+	 * "in-use" until we really free the gendisk.
+	 */
+	blk_invalidate_devt(part_devt(part));
 	hd_struct_kill(part);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/block/sed-opal.c linux-libre-5.1.21-gnu/block/sed-opal.c
--- linux-libre-5.1-gnu/block/sed-opal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/block/sed-opal.c	2019-07-28 02:28:39.000000000 -0400
@@ -2095,13 +2095,16 @@ static int opal_erase_locking_range(stru
 static int opal_enable_disable_shadow_mbr(struct opal_dev *dev,
 					  struct opal_mbr_data *opal_mbr)
 {
+	u8 enable_disable = opal_mbr->enable_disable == OPAL_MBR_ENABLE ?
+		OPAL_TRUE : OPAL_FALSE;
+
 	const struct opal_step mbr_steps[] = {
 		{ opal_discovery0, },
 		{ start_admin1LSP_opal_session, &opal_mbr->key },
-		{ set_mbr_done, &opal_mbr->enable_disable },
+		{ set_mbr_done, &enable_disable },
 		{ end_opal_session, },
 		{ start_admin1LSP_opal_session, &opal_mbr->key },
-		{ set_mbr_enable_disable, &opal_mbr->enable_disable },
+		{ set_mbr_enable_disable, &enable_disable },
 		{ end_opal_session, },
 		{ NULL, }
 	};
@@ -2221,7 +2224,7 @@ static int __opal_lock_unlock(struct opa
 
 static int __opal_set_mbr_done(struct opal_dev *dev, struct opal_key *key)
 {
-	u8 mbr_done_tf = 1;
+	u8 mbr_done_tf = OPAL_TRUE;
 	const struct opal_step mbrdone_step [] = {
 		{ opal_discovery0, },
 		{ start_admin1LSP_opal_session, key },
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/asymmetric_keys/Kconfig linux-libre-5.1.21-gnu/crypto/asymmetric_keys/Kconfig
--- linux-libre-5.1-gnu/crypto/asymmetric_keys/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/asymmetric_keys/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -15,6 +15,7 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	select MPILIB
 	select CRYPTO_HASH_INFO
 	select CRYPTO_AKCIPHER
+	select CRYPTO_HASH
 	help
 	  This option provides support for asymmetric public key type handling.
 	  If signature generation and/or verification are to be used,
@@ -65,6 +66,7 @@ config TPM_KEY_PARSER
 config PKCS7_MESSAGE_PARSER
 	tristate "PKCS#7 message parser"
 	depends on X509_CERTIFICATE_PARSER
+	select CRYPTO_HASH
 	select ASN1
 	select OID_REGISTRY
 	help
@@ -87,6 +89,7 @@ config SIGNED_PE_FILE_VERIFICATION
 	bool "Support for PE file signature verification"
 	depends on PKCS7_MESSAGE_PARSER=y
 	depends on SYSTEM_DATA_VERIFICATION
+	select CRYPTO_HASH
 	select ASN1
 	select OID_REGISTRY
 	help
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/ccm.c linux-libre-5.1.21-gnu/crypto/ccm.c
--- linux-libre-5.1-gnu/crypto/ccm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/ccm.c	2019-07-28 02:28:39.000000000 -0400
@@ -458,7 +458,6 @@ static void crypto_ccm_free(struct aead_
 
 static int crypto_ccm_create_common(struct crypto_template *tmpl,
 				    struct rtattr **tb,
-				    const char *full_name,
 				    const char *ctr_name,
 				    const char *mac_name)
 {
@@ -486,7 +485,8 @@ static int crypto_ccm_create_common(stru
 
 	mac = __crypto_hash_alg_common(mac_alg);
 	err = -EINVAL;
-	if (mac->digestsize != 16)
+	if (strncmp(mac->base.cra_name, "cbcmac(", 7) != 0 ||
+	    mac->digestsize != 16)
 		goto out_put_mac;
 
 	inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL);
@@ -509,23 +509,27 @@ static int crypto_ccm_create_common(stru
 
 	ctr = crypto_spawn_skcipher_alg(&ictx->ctr);
 
-	/* Not a stream cipher? */
+	/* The skcipher algorithm must be CTR mode, using 16-byte blocks. */
 	err = -EINVAL;
-	if (ctr->base.cra_blocksize != 1)
+	if (strncmp(ctr->base.cra_name, "ctr(", 4) != 0 ||
+	    crypto_skcipher_alg_ivsize(ctr) != 16 ||
+	    ctr->base.cra_blocksize != 1)
 		goto err_drop_ctr;
 
-	/* We want the real thing! */
-	if (crypto_skcipher_alg_ivsize(ctr) != 16)
+	/* ctr and cbcmac must use the same underlying block cipher. */
+	if (strcmp(ctr->base.cra_name + 4, mac->base.cra_name + 7) != 0)
 		goto err_drop_ctr;
 
 	err = -ENAMETOOLONG;
+	if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
+		     "ccm(%s", ctr->base.cra_name + 4) >= CRYPTO_MAX_ALG_NAME)
+		goto err_drop_ctr;
+
 	if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
 		     "ccm_base(%s,%s)", ctr->base.cra_driver_name,
 		     mac->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
 		goto err_drop_ctr;
 
-	memcpy(inst->alg.base.cra_name, full_name, CRYPTO_MAX_ALG_NAME);
-
 	inst->alg.base.cra_flags = ctr->base.cra_flags & CRYPTO_ALG_ASYNC;
 	inst->alg.base.cra_priority = (mac->base.cra_priority +
 				       ctr->base.cra_priority) / 2;
@@ -567,7 +571,6 @@ static int crypto_ccm_create(struct cryp
 	const char *cipher_name;
 	char ctr_name[CRYPTO_MAX_ALG_NAME];
 	char mac_name[CRYPTO_MAX_ALG_NAME];
-	char full_name[CRYPTO_MAX_ALG_NAME];
 
 	cipher_name = crypto_attr_alg_name(tb[1]);
 	if (IS_ERR(cipher_name))
@@ -581,35 +584,24 @@ static int crypto_ccm_create(struct cryp
 		     cipher_name) >= CRYPTO_MAX_ALG_NAME)
 		return -ENAMETOOLONG;
 
-	if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "ccm(%s)", cipher_name) >=
-	    CRYPTO_MAX_ALG_NAME)
-		return -ENAMETOOLONG;
-
-	return crypto_ccm_create_common(tmpl, tb, full_name, ctr_name,
-					mac_name);
+	return crypto_ccm_create_common(tmpl, tb, ctr_name, mac_name);
 }
 
 static int crypto_ccm_base_create(struct crypto_template *tmpl,
 				  struct rtattr **tb)
 {
 	const char *ctr_name;
-	const char *cipher_name;
-	char full_name[CRYPTO_MAX_ALG_NAME];
+	const char *mac_name;
 
 	ctr_name = crypto_attr_alg_name(tb[1]);
 	if (IS_ERR(ctr_name))
 		return PTR_ERR(ctr_name);
 
-	cipher_name = crypto_attr_alg_name(tb[2]);
-	if (IS_ERR(cipher_name))
-		return PTR_ERR(cipher_name);
-
-	if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "ccm_base(%s,%s)",
-		     ctr_name, cipher_name) >= CRYPTO_MAX_ALG_NAME)
-		return -ENAMETOOLONG;
+	mac_name = crypto_attr_alg_name(tb[2]);
+	if (IS_ERR(mac_name))
+		return PTR_ERR(mac_name);
 
-	return crypto_ccm_create_common(tmpl, tb, full_name, ctr_name,
-					cipher_name);
+	return crypto_ccm_create_common(tmpl, tb, ctr_name, mac_name);
 }
 
 static int crypto_rfc4309_setkey(struct crypto_aead *parent, const u8 *key,
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/chacha20poly1305.c linux-libre-5.1.21-gnu/crypto/chacha20poly1305.c
--- linux-libre-5.1-gnu/crypto/chacha20poly1305.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/chacha20poly1305.c	2019-07-28 02:28:39.000000000 -0400
@@ -65,6 +65,8 @@ struct chachapoly_req_ctx {
 	unsigned int cryptlen;
 	/* Actual AD, excluding IV */
 	unsigned int assoclen;
+	/* request flags, with MAY_SLEEP cleared if needed */
+	u32 flags;
 	union {
 		struct poly_req poly;
 		struct chacha_req chacha;
@@ -74,8 +76,12 @@ struct chachapoly_req_ctx {
 static inline void async_done_continue(struct aead_request *req, int err,
 				       int (*cont)(struct aead_request *))
 {
-	if (!err)
+	if (!err) {
+		struct chachapoly_req_ctx *rctx = aead_request_ctx(req);
+
+		rctx->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
 		err = cont(req);
+	}
 
 	if (err != -EINPROGRESS && err != -EBUSY)
 		aead_request_complete(req, err);
@@ -142,7 +148,7 @@ static int chacha_decrypt(struct aead_re
 		dst = scatterwalk_ffwd(rctx->dst, req->dst, req->assoclen);
 	}
 
-	skcipher_request_set_callback(&creq->req, aead_request_flags(req),
+	skcipher_request_set_callback(&creq->req, rctx->flags,
 				      chacha_decrypt_done, req);
 	skcipher_request_set_tfm(&creq->req, ctx->chacha);
 	skcipher_request_set_crypt(&creq->req, src, dst,
@@ -186,7 +192,7 @@ static int poly_tail(struct aead_request
 	memcpy(&preq->tail.cryptlen, &len, sizeof(len));
 	sg_set_buf(preq->src, &preq->tail, sizeof(preq->tail));
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_tail_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, preq->src,
@@ -217,7 +223,7 @@ static int poly_cipherpad(struct aead_re
 	sg_init_table(preq->src, 1);
 	sg_set_buf(preq->src, &preq->pad, padlen);
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_cipherpad_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, preq->src, NULL, padlen);
@@ -248,7 +254,7 @@ static int poly_cipher(struct aead_reque
 	sg_init_table(rctx->src, 2);
 	crypt = scatterwalk_ffwd(rctx->src, crypt, req->assoclen);
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_cipher_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, crypt, NULL, rctx->cryptlen);
@@ -278,7 +284,7 @@ static int poly_adpad(struct aead_reques
 	sg_init_table(preq->src, 1);
 	sg_set_buf(preq->src, preq->pad, padlen);
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_adpad_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, preq->src, NULL, padlen);
@@ -302,7 +308,7 @@ static int poly_ad(struct aead_request *
 	struct poly_req *preq = &rctx->u.poly;
 	int err;
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_ad_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, req->src, NULL, rctx->assoclen);
@@ -329,7 +335,7 @@ static int poly_setkey(struct aead_reque
 	sg_init_table(preq->src, 1);
 	sg_set_buf(preq->src, rctx->key, sizeof(rctx->key));
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_setkey_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 	ahash_request_set_crypt(&preq->req, preq->src, NULL, sizeof(rctx->key));
@@ -353,7 +359,7 @@ static int poly_init(struct aead_request
 	struct poly_req *preq = &rctx->u.poly;
 	int err;
 
-	ahash_request_set_callback(&preq->req, aead_request_flags(req),
+	ahash_request_set_callback(&preq->req, rctx->flags,
 				   poly_init_done, req);
 	ahash_request_set_tfm(&preq->req, ctx->poly);
 
@@ -391,7 +397,7 @@ static int poly_genkey(struct aead_reque
 
 	chacha_iv(creq->iv, req, 0);
 
-	skcipher_request_set_callback(&creq->req, aead_request_flags(req),
+	skcipher_request_set_callback(&creq->req, rctx->flags,
 				      poly_genkey_done, req);
 	skcipher_request_set_tfm(&creq->req, ctx->chacha);
 	skcipher_request_set_crypt(&creq->req, creq->src, creq->src,
@@ -431,7 +437,7 @@ static int chacha_encrypt(struct aead_re
 		dst = scatterwalk_ffwd(rctx->dst, req->dst, req->assoclen);
 	}
 
-	skcipher_request_set_callback(&creq->req, aead_request_flags(req),
+	skcipher_request_set_callback(&creq->req, rctx->flags,
 				      chacha_encrypt_done, req);
 	skcipher_request_set_tfm(&creq->req, ctx->chacha);
 	skcipher_request_set_crypt(&creq->req, src, dst,
@@ -449,6 +455,7 @@ static int chachapoly_encrypt(struct aea
 	struct chachapoly_req_ctx *rctx = aead_request_ctx(req);
 
 	rctx->cryptlen = req->cryptlen;
+	rctx->flags = aead_request_flags(req);
 
 	/* encrypt call chain:
 	 * - chacha_encrypt/done()
@@ -470,6 +477,7 @@ static int chachapoly_decrypt(struct aea
 	struct chachapoly_req_ctx *rctx = aead_request_ctx(req);
 
 	rctx->cryptlen = req->cryptlen - POLY1305_DIGEST_SIZE;
+	rctx->flags = aead_request_flags(req);
 
 	/* decrypt call chain:
 	 * - poly_genkey/done()
@@ -645,8 +653,8 @@ static int chachapoly_create(struct cryp
 
 	err = -ENAMETOOLONG;
 	if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
-		     "%s(%s,%s)", name, chacha_name,
-		     poly_name) >= CRYPTO_MAX_ALG_NAME)
+		     "%s(%s,%s)", name, chacha->base.cra_name,
+		     poly->cra_name) >= CRYPTO_MAX_ALG_NAME)
 		goto out_drop_chacha;
 	if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
 		     "%s(%s,%s)", name, chacha->base.cra_driver_name,
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/chacha_generic.c linux-libre-5.1.21-gnu/crypto/chacha_generic.c
--- linux-libre-5.1-gnu/crypto/chacha_generic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/chacha_generic.c	2019-07-28 02:28:39.000000000 -0400
@@ -52,7 +52,7 @@ static int chacha_stream_xor(struct skci
 		unsigned int nbytes = walk.nbytes;
 
 		if (nbytes < walk.total)
-			nbytes = round_down(nbytes, walk.stride);
+			nbytes = round_down(nbytes, CHACHA_BLOCK_SIZE);
 
 		chacha_docrypt(state, walk.dst.virt.addr, walk.src.virt.addr,
 			       nbytes, ctx->nrounds);
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/crct10dif_generic.c linux-libre-5.1.21-gnu/crypto/crct10dif_generic.c
--- linux-libre-5.1-gnu/crypto/crct10dif_generic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/crct10dif_generic.c	2019-07-28 02:28:39.000000000 -0400
@@ -65,10 +65,9 @@ static int chksum_final(struct shash_des
 	return 0;
 }
 
-static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len,
-			u8 *out)
+static int __chksum_finup(__u16 crc, const u8 *data, unsigned int len, u8 *out)
 {
-	*(__u16 *)out = crc_t10dif_generic(*crcp, data, len);
+	*(__u16 *)out = crc_t10dif_generic(crc, data, len);
 	return 0;
 }
 
@@ -77,15 +76,13 @@ static int chksum_finup(struct shash_des
 {
 	struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
 
-	return __chksum_finup(&ctx->crc, data, len, out);
+	return __chksum_finup(ctx->crc, data, len, out);
 }
 
 static int chksum_digest(struct shash_desc *desc, const u8 *data,
 			 unsigned int length, u8 *out)
 {
-	struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
-
-	return __chksum_finup(&ctx->crc, data, length, out);
+	return __chksum_finup(0, data, length, out);
 }
 
 static struct shash_alg alg = {
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/cryptd.c linux-libre-5.1.21-gnu/crypto/cryptd.c
--- linux-libre-5.1-gnu/crypto/cryptd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/cryptd.c	2019-07-28 02:28:39.000000000 -0400
@@ -586,6 +586,7 @@ static void cryptd_skcipher_free(struct
 	struct skcipherd_instance_ctx *ctx = skcipher_instance_ctx(inst);
 
 	crypto_drop_skcipher(&ctx->spawn);
+	kfree(inst);
 }
 
 static int cryptd_create_skcipher(struct crypto_template *tmpl,
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/crypto_user_base.c linux-libre-5.1.21-gnu/crypto/crypto_user_base.c
--- linux-libre-5.1-gnu/crypto/crypto_user_base.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/crypto_user_base.c	2019-07-28 02:28:39.000000000 -0400
@@ -56,6 +56,9 @@ struct crypto_alg *crypto_alg_match(stru
 	list_for_each_entry(q, &crypto_alg_list, cra_list) {
 		int match = 0;
 
+		if (crypto_is_larval(q))
+			continue;
+
 		if ((q->cra_flags ^ p->cru_type) & p->cru_mask)
 			continue;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/gcm.c linux-libre-5.1.21-gnu/crypto/gcm.c
--- linux-libre-5.1-gnu/crypto/gcm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/gcm.c	2019-07-28 02:28:39.000000000 -0400
@@ -597,7 +597,6 @@ static void crypto_gcm_free(struct aead_
 
 static int crypto_gcm_create_common(struct crypto_template *tmpl,
 				    struct rtattr **tb,
-				    const char *full_name,
 				    const char *ctr_name,
 				    const char *ghash_name)
 {
@@ -638,7 +637,8 @@ static int crypto_gcm_create_common(stru
 		goto err_free_inst;
 
 	err = -EINVAL;
-	if (ghash->digestsize != 16)
+	if (strcmp(ghash->base.cra_name, "ghash") != 0 ||
+	    ghash->digestsize != 16)
 		goto err_drop_ghash;
 
 	crypto_set_skcipher_spawn(&ctx->ctr, aead_crypto_instance(inst));
@@ -650,24 +650,24 @@ static int crypto_gcm_create_common(stru
 
 	ctr = crypto_spawn_skcipher_alg(&ctx->ctr);
 
-	/* We only support 16-byte blocks. */
+	/* The skcipher algorithm must be CTR mode, using 16-byte blocks. */
 	err = -EINVAL;
-	if (crypto_skcipher_alg_ivsize(ctr) != 16)
+	if (strncmp(ctr->base.cra_name, "ctr(", 4) != 0 ||
+	    crypto_skcipher_alg_ivsize(ctr) != 16 ||
+	    ctr->base.cra_blocksize != 1)
 		goto out_put_ctr;
 
-	/* Not a stream cipher? */
-	if (ctr->base.cra_blocksize != 1)
+	err = -ENAMETOOLONG;
+	if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
+		     "gcm(%s", ctr->base.cra_name + 4) >= CRYPTO_MAX_ALG_NAME)
 		goto out_put_ctr;
 
-	err = -ENAMETOOLONG;
 	if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
 		     "gcm_base(%s,%s)", ctr->base.cra_driver_name,
 		     ghash_alg->cra_driver_name) >=
 	    CRYPTO_MAX_ALG_NAME)
 		goto out_put_ctr;
 
-	memcpy(inst->alg.base.cra_name, full_name, CRYPTO_MAX_ALG_NAME);
-
 	inst->alg.base.cra_flags = (ghash->base.cra_flags |
 				    ctr->base.cra_flags) & CRYPTO_ALG_ASYNC;
 	inst->alg.base.cra_priority = (ghash->base.cra_priority +
@@ -709,7 +709,6 @@ static int crypto_gcm_create(struct cryp
 {
 	const char *cipher_name;
 	char ctr_name[CRYPTO_MAX_ALG_NAME];
-	char full_name[CRYPTO_MAX_ALG_NAME];
 
 	cipher_name = crypto_attr_alg_name(tb[1]);
 	if (IS_ERR(cipher_name))
@@ -719,12 +718,7 @@ static int crypto_gcm_create(struct cryp
 	    CRYPTO_MAX_ALG_NAME)
 		return -ENAMETOOLONG;
 
-	if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "gcm(%s)", cipher_name) >=
-	    CRYPTO_MAX_ALG_NAME)
-		return -ENAMETOOLONG;
-
-	return crypto_gcm_create_common(tmpl, tb, full_name,
-					ctr_name, "ghash");
+	return crypto_gcm_create_common(tmpl, tb, ctr_name, "ghash");
 }
 
 static int crypto_gcm_base_create(struct crypto_template *tmpl,
@@ -732,7 +726,6 @@ static int crypto_gcm_base_create(struct
 {
 	const char *ctr_name;
 	const char *ghash_name;
-	char full_name[CRYPTO_MAX_ALG_NAME];
 
 	ctr_name = crypto_attr_alg_name(tb[1]);
 	if (IS_ERR(ctr_name))
@@ -742,12 +735,7 @@ static int crypto_gcm_base_create(struct
 	if (IS_ERR(ghash_name))
 		return PTR_ERR(ghash_name);
 
-	if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "gcm_base(%s,%s)",
-		     ctr_name, ghash_name) >= CRYPTO_MAX_ALG_NAME)
-		return -ENAMETOOLONG;
-
-	return crypto_gcm_create_common(tmpl, tb, full_name,
-					ctr_name, ghash_name);
+	return crypto_gcm_create_common(tmpl, tb, ctr_name, ghash_name);
 }
 
 static int crypto_rfc4106_setkey(struct crypto_aead *parent, const u8 *key,
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/ghash-generic.c linux-libre-5.1.21-gnu/crypto/ghash-generic.c
--- linux-libre-5.1-gnu/crypto/ghash-generic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/ghash-generic.c	2019-07-28 02:28:39.000000000 -0400
@@ -34,6 +34,7 @@ static int ghash_setkey(struct crypto_sh
 			const u8 *key, unsigned int keylen)
 {
 	struct ghash_ctx *ctx = crypto_shash_ctx(tfm);
+	be128 k;
 
 	if (keylen != GHASH_BLOCK_SIZE) {
 		crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
@@ -42,7 +43,12 @@ static int ghash_setkey(struct crypto_sh
 
 	if (ctx->gf128)
 		gf128mul_free_4k(ctx->gf128);
-	ctx->gf128 = gf128mul_init_4k_lle((be128 *)key);
+
+	BUILD_BUG_ON(sizeof(k) != GHASH_BLOCK_SIZE);
+	memcpy(&k, key, GHASH_BLOCK_SIZE); /* avoid violating alignment rules */
+	ctx->gf128 = gf128mul_init_4k_lle(&k);
+	memzero_explicit(&k, GHASH_BLOCK_SIZE);
+
 	if (!ctx->gf128)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/hmac.c linux-libre-5.1.21-gnu/crypto/hmac.c
--- linux-libre-5.1-gnu/crypto/hmac.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/hmac.c	2019-07-28 02:28:39.000000000 -0400
@@ -168,6 +168,10 @@ static int hmac_init_tfm(struct crypto_t
 
 	parent->descsize = sizeof(struct shash_desc) +
 			   crypto_shash_descsize(hash);
+	if (WARN_ON(parent->descsize > HASH_MAX_DESCSIZE)) {
+		crypto_free_shash(hash);
+		return -EINVAL;
+	}
 
 	ctx->hash = hash;
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/lrw.c linux-libre-5.1.21-gnu/crypto/lrw.c
--- linux-libre-5.1-gnu/crypto/lrw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/lrw.c	2019-07-28 02:28:39.000000000 -0400
@@ -162,8 +162,10 @@ static int xor_tweak(struct skcipher_req
 	}
 
 	err = skcipher_walk_virt(&w, req, false);
-	iv = (__be32 *)w.iv;
+	if (err)
+		return err;
 
+	iv = (__be32 *)w.iv;
 	counter[0] = be32_to_cpu(iv[3]);
 	counter[1] = be32_to_cpu(iv[2]);
 	counter[2] = be32_to_cpu(iv[1]);
@@ -386,7 +388,7 @@ static int create(struct crypto_template
 	inst->alg.base.cra_priority = alg->base.cra_priority;
 	inst->alg.base.cra_blocksize = LRW_BLOCK_SIZE;
 	inst->alg.base.cra_alignmask = alg->base.cra_alignmask |
-				       (__alignof__(__be32) - 1);
+				       (__alignof__(be128) - 1);
 
 	inst->alg.ivsize = LRW_BLOCK_SIZE;
 	inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(alg) +
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/salsa20_generic.c linux-libre-5.1.21-gnu/crypto/salsa20_generic.c
--- linux-libre-5.1-gnu/crypto/salsa20_generic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/salsa20_generic.c	2019-07-28 02:28:39.000000000 -0400
@@ -161,7 +161,7 @@ static int salsa20_crypt(struct skcipher
 
 	err = skcipher_walk_virt(&walk, req, false);
 
-	salsa20_init(state, ctx, walk.iv);
+	salsa20_init(state, ctx, req->iv);
 
 	while (walk.nbytes > 0) {
 		unsigned int nbytes = walk.nbytes;
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/serpent_generic.c linux-libre-5.1.21-gnu/crypto/serpent_generic.c
--- linux-libre-5.1-gnu/crypto/serpent_generic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/serpent_generic.c	2019-07-28 02:28:39.000000000 -0400
@@ -229,7 +229,13 @@
 	x4 ^= x2;					\
 	})
 
-static void __serpent_setkey_sbox(u32 r0, u32 r1, u32 r2, u32 r3, u32 r4, u32 *k)
+/*
+ * both gcc and clang have misoptimized this function in the past,
+ * producing horrible object code from spilling temporary variables
+ * on the stack. Forcing this part out of line avoids that.
+ */
+static noinline void __serpent_setkey_sbox(u32 r0, u32 r1, u32 r2,
+					   u32 r3, u32 r4, u32 *k)
 {
 	k += 100;
 	S3(r3, r4, r0, r1, r2); store_and_load_keys(r1, r2, r4, r3, 28, 24);
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/skcipher.c linux-libre-5.1.21-gnu/crypto/skcipher.c
--- linux-libre-5.1-gnu/crypto/skcipher.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/skcipher.c	2019-07-28 02:28:39.000000000 -0400
@@ -131,8 +131,13 @@ unmap_src:
 		memcpy(walk->dst.virt.addr, walk->page, n);
 		skcipher_unmap_dst(walk);
 	} else if (unlikely(walk->flags & SKCIPHER_WALK_SLOW)) {
-		if (WARN_ON(err)) {
-			/* unexpected case; didn't process all bytes */
+		if (err) {
+			/*
+			 * Didn't process all bytes.  Either the algorithm is
+			 * broken, or this was the last step and it turned out
+			 * the message wasn't evenly divisible into blocks but
+			 * the algorithm requires it.
+			 */
 			err = -EINVAL;
 			goto finish;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/crypto/testmgr.c linux-libre-5.1.21-gnu/crypto/testmgr.c
--- linux-libre-5.1-gnu/crypto/testmgr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/crypto/testmgr.c	2019-07-28 02:28:39.000000000 -0400
@@ -1050,6 +1050,7 @@ static int test_hash_vec(const char *dri
 						req, tsgl, hashstate);
 			if (err)
 				return err;
+			cond_resched();
 		}
 	}
 #endif
@@ -1105,6 +1106,7 @@ static int __alg_test_hash(const struct
 		err = test_hash_vec(driver, &vecs[i], i, req, tsgl, hashstate);
 		if (err)
 			goto out;
+		cond_resched();
 	}
 	err = 0;
 out:
@@ -1346,6 +1348,7 @@ static int test_aead_vec(const char *dri
 						&cfg, req, tsgls);
 			if (err)
 				return err;
+			cond_resched();
 		}
 	}
 #endif
@@ -1365,6 +1368,7 @@ static int test_aead(const char *driver,
 				    tsgls);
 		if (err)
 			return err;
+		cond_resched();
 	}
 	return 0;
 }
@@ -1679,6 +1683,7 @@ static int test_skcipher_vec(const char
 						    &cfg, req, tsgls);
 			if (err)
 				return err;
+			cond_resched();
 		}
 	}
 #endif
@@ -1698,6 +1703,7 @@ static int test_skcipher(const char *dri
 					tsgls);
 		if (err)
 			return err;
+		cond_resched();
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/ABI/testing/sysfs-class-net-qmi linux-libre-5.1.21-gnu/Documentation/ABI/testing/sysfs-class-net-qmi
--- linux-libre-5.1-gnu/Documentation/ABI/testing/sysfs-class-net-qmi	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/ABI/testing/sysfs-class-net-qmi	2019-07-28 02:28:39.000000000 -0400
@@ -29,7 +29,7 @@ Contact:	Bjørn Mork <bjorn@mork.no>
 Description:
 		Unsigned integer.
 
-		Write a number ranging from 1 to 127 to add a qmap mux
+		Write a number ranging from 1 to 254 to add a qmap mux
 		based network device, supported by recent Qualcomm based
 		modems.
 
@@ -46,5 +46,5 @@ Contact:	Bjørn Mork <bjorn@mork.no>
 Description:
 		Unsigned integer.
 
-		Write a number ranging from 1 to 127 to delete a previously
+		Write a number ranging from 1 to 254 to delete a previously
 		created qmap mux based network device.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/ABI/testing/sysfs-devices-system-cpu linux-libre-5.1.21-gnu/Documentation/ABI/testing/sysfs-devices-system-cpu
--- linux-libre-5.1-gnu/Documentation/ABI/testing/sysfs-devices-system-cpu	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/ABI/testing/sysfs-devices-system-cpu	2019-07-28 02:28:39.000000000 -0400
@@ -484,6 +484,7 @@ What:		/sys/devices/system/cpu/vulnerabi
 		/sys/devices/system/cpu/vulnerabilities/spectre_v2
 		/sys/devices/system/cpu/vulnerabilities/spec_store_bypass
 		/sys/devices/system/cpu/vulnerabilities/l1tf
+		/sys/devices/system/cpu/vulnerabilities/mds
 Date:		January 2018
 Contact:	Linux kernel mailing list <linux-kernel@vger.kernel.org>
 Description:	Information about CPU vulnerabilities
@@ -496,8 +497,7 @@ Description:	Information about CPU vulne
 		"Vulnerable"	  CPU is affected and no mitigation in effect
 		"Mitigation: $M"  CPU is affected and mitigation $M is in effect
 
-		Details about the l1tf file can be found in
-		Documentation/admin-guide/l1tf.rst
+		See also: Documentation/admin-guide/hw-vuln/index.rst
 
 What:		/sys/devices/system/cpu/smt
 		/sys/devices/system/cpu/smt/active
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/admin-guide/cgroup-v2.rst linux-libre-5.1.21-gnu/Documentation/admin-guide/cgroup-v2.rst
--- linux-libre-5.1-gnu/Documentation/admin-guide/cgroup-v2.rst	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/admin-guide/cgroup-v2.rst	2019-07-28 02:28:39.000000000 -0400
@@ -177,6 +177,15 @@ cgroup v2 currently supports the followi
 	ignored on non-init namespace mounts.  Please refer to the
 	Delegation section for details.
 
+  memory_localevents
+
+        Only populate memory.events with data for the current cgroup,
+        and not any subtrees. This is legacy behaviour, the default
+        behaviour without this option is to include subtree counts.
+        This option is system wide and can only be set on mount or
+        modified through remount from the init namespace. The mount
+        option is ignored on non-init namespace mounts.
+
 
 Organizing Processes and Threads
 --------------------------------
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/admin-guide/hw-vuln/index.rst linux-libre-5.1.21-gnu/Documentation/admin-guide/hw-vuln/index.rst
--- linux-libre-5.1-gnu/Documentation/admin-guide/hw-vuln/index.rst	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/Documentation/admin-guide/hw-vuln/index.rst	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,14 @@
+========================
+Hardware vulnerabilities
+========================
+
+This section describes CPU vulnerabilities and provides an overview of the
+possible mitigations along with guidance for selecting mitigations if they
+are configurable at compile, boot or run time.
+
+.. toctree::
+   :maxdepth: 1
+
+   spectre
+   l1tf
+   mds
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/admin-guide/hw-vuln/l1tf.rst linux-libre-5.1.21-gnu/Documentation/admin-guide/hw-vuln/l1tf.rst
--- linux-libre-5.1-gnu/Documentation/admin-guide/hw-vuln/l1tf.rst	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/Documentation/admin-guide/hw-vuln/l1tf.rst	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,615 @@
+L1TF - L1 Terminal Fault
+========================
+
+L1 Terminal Fault is a hardware vulnerability which allows unprivileged
+speculative access to data which is available in the Level 1 Data Cache
+when the page table entry controlling the virtual address, which is used
+for the access, has the Present bit cleared or other reserved bits set.
+
+Affected processors
+-------------------
+
+This vulnerability affects a wide range of Intel processors. The
+vulnerability is not present on:
+
+   - Processors from AMD, Centaur and other non Intel vendors
+
+   - Older processor models, where the CPU family is < 6
+
+   - A range of Intel ATOM processors (Cedarview, Cloverview, Lincroft,
+     Penwell, Pineview, Silvermont, Airmont, Merrifield)
+
+   - The Intel XEON PHI family
+
+   - Intel processors which have the ARCH_CAP_RDCL_NO bit set in the
+     IA32_ARCH_CAPABILITIES MSR. If the bit is set the CPU is not affected
+     by the Meltdown vulnerability either. These CPUs should become
+     available by end of 2018.
+
+Whether a processor is affected or not can be read out from the L1TF
+vulnerability file in sysfs. See :ref:`l1tf_sys_info`.
+
+Related CVEs
+------------
+
+The following CVE entries are related to the L1TF vulnerability:
+
+   =============  =================  ==============================
+   CVE-2018-3615  L1 Terminal Fault  SGX related aspects
+   CVE-2018-3620  L1 Terminal Fault  OS, SMM related aspects
+   CVE-2018-3646  L1 Terminal Fault  Virtualization related aspects
+   =============  =================  ==============================
+
+Problem
+-------
+
+If an instruction accesses a virtual address for which the relevant page
+table entry (PTE) has the Present bit cleared or other reserved bits set,
+then speculative execution ignores the invalid PTE and loads the referenced
+data if it is present in the Level 1 Data Cache, as if the page referenced
+by the address bits in the PTE was still present and accessible.
+
+While this is a purely speculative mechanism and the instruction will raise
+a page fault when it is retired eventually, the pure act of loading the
+data and making it available to other speculative instructions opens up the
+opportunity for side channel attacks to unprivileged malicious code,
+similar to the Meltdown attack.
+
+While Meltdown breaks the user space to kernel space protection, L1TF
+allows to attack any physical memory address in the system and the attack
+works across all protection domains. It allows an attack of SGX and also
+works from inside virtual machines because the speculation bypasses the
+extended page table (EPT) protection mechanism.
+
+
+Attack scenarios
+----------------
+
+1. Malicious user space
+^^^^^^^^^^^^^^^^^^^^^^^
+
+   Operating Systems store arbitrary information in the address bits of a
+   PTE which is marked non present. This allows a malicious user space
+   application to attack the physical memory to which these PTEs resolve.
+   In some cases user-space can maliciously influence the information
+   encoded in the address bits of the PTE, thus making attacks more
+   deterministic and more practical.
+
+   The Linux kernel contains a mitigation for this attack vector, PTE
+   inversion, which is permanently enabled and has no performance
+   impact. The kernel ensures that the address bits of PTEs, which are not
+   marked present, never point to cacheable physical memory space.
+
+   A system with an up to date kernel is protected against attacks from
+   malicious user space applications.
+
+2. Malicious guest in a virtual machine
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   The fact that L1TF breaks all domain protections allows malicious guest
+   OSes, which can control the PTEs directly, and malicious guest user
+   space applications, which run on an unprotected guest kernel lacking the
+   PTE inversion mitigation for L1TF, to attack physical host memory.
+
+   A special aspect of L1TF in the context of virtualization is symmetric
+   multi threading (SMT). The Intel implementation of SMT is called
+   HyperThreading. The fact that Hyperthreads on the affected processors
+   share the L1 Data Cache (L1D) is important for this. As the flaw allows
+   only to attack data which is present in L1D, a malicious guest running
+   on one Hyperthread can attack the data which is brought into the L1D by
+   the context which runs on the sibling Hyperthread of the same physical
+   core. This context can be host OS, host user space or a different guest.
+
+   If the processor does not support Extended Page Tables, the attack is
+   only possible, when the hypervisor does not sanitize the content of the
+   effective (shadow) page tables.
+
+   While solutions exist to mitigate these attack vectors fully, these
+   mitigations are not enabled by default in the Linux kernel because they
+   can affect performance significantly. The kernel provides several
+   mechanisms which can be utilized to address the problem depending on the
+   deployment scenario. The mitigations, their protection scope and impact
+   are described in the next sections.
+
+   The default mitigations and the rationale for choosing them are explained
+   at the end of this document. See :ref:`default_mitigations`.
+
+.. _l1tf_sys_info:
+
+L1TF system information
+-----------------------
+
+The Linux kernel provides a sysfs interface to enumerate the current L1TF
+status of the system: whether the system is vulnerable, and which
+mitigations are active. The relevant sysfs file is:
+
+/sys/devices/system/cpu/vulnerabilities/l1tf
+
+The possible values in this file are:
+
+  ===========================   ===============================
+  'Not affected'		The processor is not vulnerable
+  'Mitigation: PTE Inversion'	The host protection is active
+  ===========================   ===============================
+
+If KVM/VMX is enabled and the processor is vulnerable then the following
+information is appended to the 'Mitigation: PTE Inversion' part:
+
+  - SMT status:
+
+    =====================  ================
+    'VMX: SMT vulnerable'  SMT is enabled
+    'VMX: SMT disabled'    SMT is disabled
+    =====================  ================
+
+  - L1D Flush mode:
+
+    ================================  ====================================
+    'L1D vulnerable'		      L1D flushing is disabled
+
+    'L1D conditional cache flushes'   L1D flush is conditionally enabled
+
+    'L1D cache flushes'		      L1D flush is unconditionally enabled
+    ================================  ====================================
+
+The resulting grade of protection is discussed in the following sections.
+
+
+Host mitigation mechanism
+-------------------------
+
+The kernel is unconditionally protected against L1TF attacks from malicious
+user space running on the host.
+
+
+Guest mitigation mechanisms
+---------------------------
+
+.. _l1d_flush:
+
+1. L1D flush on VMENTER
+^^^^^^^^^^^^^^^^^^^^^^^
+
+   To make sure that a guest cannot attack data which is present in the L1D
+   the hypervisor flushes the L1D before entering the guest.
+
+   Flushing the L1D evicts not only the data which should not be accessed
+   by a potentially malicious guest, it also flushes the guest
+   data. Flushing the L1D has a performance impact as the processor has to
+   bring the flushed guest data back into the L1D. Depending on the
+   frequency of VMEXIT/VMENTER and the type of computations in the guest
+   performance degradation in the range of 1% to 50% has been observed. For
+   scenarios where guest VMEXIT/VMENTER are rare the performance impact is
+   minimal. Virtio and mechanisms like posted interrupts are designed to
+   confine the VMEXITs to a bare minimum, but specific configurations and
+   application scenarios might still suffer from a high VMEXIT rate.
+
+   The kernel provides two L1D flush modes:
+    - conditional ('cond')
+    - unconditional ('always')
+
+   The conditional mode avoids L1D flushing after VMEXITs which execute
+   only audited code paths before the corresponding VMENTER. These code
+   paths have been verified that they cannot expose secrets or other
+   interesting data to an attacker, but they can leak information about the
+   address space layout of the hypervisor.
+
+   Unconditional mode flushes L1D on all VMENTER invocations and provides
+   maximum protection. It has a higher overhead than the conditional
+   mode. The overhead cannot be quantified correctly as it depends on the
+   workload scenario and the resulting number of VMEXITs.
+
+   The general recommendation is to enable L1D flush on VMENTER. The kernel
+   defaults to conditional mode on affected processors.
+
+   **Note**, that L1D flush does not prevent the SMT problem because the
+   sibling thread will also bring back its data into the L1D which makes it
+   attackable again.
+
+   L1D flush can be controlled by the administrator via the kernel command
+   line and sysfs control files. See :ref:`mitigation_control_command_line`
+   and :ref:`mitigation_control_kvm`.
+
+.. _guest_confinement:
+
+2. Guest VCPU confinement to dedicated physical cores
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   To address the SMT problem, it is possible to make a guest or a group of
+   guests affine to one or more physical cores. The proper mechanism for
+   that is to utilize exclusive cpusets to ensure that no other guest or
+   host tasks can run on these cores.
+
+   If only a single guest or related guests run on sibling SMT threads on
+   the same physical core then they can only attack their own memory and
+   restricted parts of the host memory.
+
+   Host memory is attackable, when one of the sibling SMT threads runs in
+   host OS (hypervisor) context and the other in guest context. The amount
+   of valuable information from the host OS context depends on the context
+   which the host OS executes, i.e. interrupts, soft interrupts and kernel
+   threads. The amount of valuable data from these contexts cannot be
+   declared as non-interesting for an attacker without deep inspection of
+   the code.
+
+   **Note**, that assigning guests to a fixed set of physical cores affects
+   the ability of the scheduler to do load balancing and might have
+   negative effects on CPU utilization depending on the hosting
+   scenario. Disabling SMT might be a viable alternative for particular
+   scenarios.
+
+   For further information about confining guests to a single or to a group
+   of cores consult the cpusets documentation:
+
+   https://www.kernel.org/doc/Documentation/cgroup-v1/cpusets.txt
+
+.. _interrupt_isolation:
+
+3. Interrupt affinity
+^^^^^^^^^^^^^^^^^^^^^
+
+   Interrupts can be made affine to logical CPUs. This is not universally
+   true because there are types of interrupts which are truly per CPU
+   interrupts, e.g. the local timer interrupt. Aside of that multi queue
+   devices affine their interrupts to single CPUs or groups of CPUs per
+   queue without allowing the administrator to control the affinities.
+
+   Moving the interrupts, which can be affinity controlled, away from CPUs
+   which run untrusted guests, reduces the attack vector space.
+
+   Whether the interrupts with are affine to CPUs, which run untrusted
+   guests, provide interesting data for an attacker depends on the system
+   configuration and the scenarios which run on the system. While for some
+   of the interrupts it can be assumed that they won't expose interesting
+   information beyond exposing hints about the host OS memory layout, there
+   is no way to make general assumptions.
+
+   Interrupt affinity can be controlled by the administrator via the
+   /proc/irq/$NR/smp_affinity[_list] files. Limited documentation is
+   available at:
+
+   https://www.kernel.org/doc/Documentation/IRQ-affinity.txt
+
+.. _smt_control:
+
+4. SMT control
+^^^^^^^^^^^^^^
+
+   To prevent the SMT issues of L1TF it might be necessary to disable SMT
+   completely. Disabling SMT can have a significant performance impact, but
+   the impact depends on the hosting scenario and the type of workloads.
+   The impact of disabling SMT needs also to be weighted against the impact
+   of other mitigation solutions like confining guests to dedicated cores.
+
+   The kernel provides a sysfs interface to retrieve the status of SMT and
+   to control it. It also provides a kernel command line interface to
+   control SMT.
+
+   The kernel command line interface consists of the following options:
+
+     =========== ==========================================================
+     nosmt	 Affects the bring up of the secondary CPUs during boot. The
+		 kernel tries to bring all present CPUs online during the
+		 boot process. "nosmt" makes sure that from each physical
+		 core only one - the so called primary (hyper) thread is
+		 activated. Due to a design flaw of Intel processors related
+		 to Machine Check Exceptions the non primary siblings have
+		 to be brought up at least partially and are then shut down
+		 again.  "nosmt" can be undone via the sysfs interface.
+
+     nosmt=force Has the same effect as "nosmt" but it does not allow to
+		 undo the SMT disable via the sysfs interface.
+     =========== ==========================================================
+
+   The sysfs interface provides two files:
+
+   - /sys/devices/system/cpu/smt/control
+   - /sys/devices/system/cpu/smt/active
+
+   /sys/devices/system/cpu/smt/control:
+
+     This file allows to read out the SMT control state and provides the
+     ability to disable or (re)enable SMT. The possible states are:
+
+	==============  ===================================================
+	on		SMT is supported by the CPU and enabled. All
+			logical CPUs can be onlined and offlined without
+			restrictions.
+
+	off		SMT is supported by the CPU and disabled. Only
+			the so called primary SMT threads can be onlined
+			and offlined without restrictions. An attempt to
+			online a non-primary sibling is rejected
+
+	forceoff	Same as 'off' but the state cannot be controlled.
+			Attempts to write to the control file are rejected.
+
+	notsupported	The processor does not support SMT. It's therefore
+			not affected by the SMT implications of L1TF.
+			Attempts to write to the control file are rejected.
+	==============  ===================================================
+
+     The possible states which can be written into this file to control SMT
+     state are:
+
+     - on
+     - off
+     - forceoff
+
+   /sys/devices/system/cpu/smt/active:
+
+     This file reports whether SMT is enabled and active, i.e. if on any
+     physical core two or more sibling threads are online.
+
+   SMT control is also possible at boot time via the l1tf kernel command
+   line parameter in combination with L1D flush control. See
+   :ref:`mitigation_control_command_line`.
+
+5. Disabling EPT
+^^^^^^^^^^^^^^^^
+
+  Disabling EPT for virtual machines provides full mitigation for L1TF even
+  with SMT enabled, because the effective page tables for guests are
+  managed and sanitized by the hypervisor. Though disabling EPT has a
+  significant performance impact especially when the Meltdown mitigation
+  KPTI is enabled.
+
+  EPT can be disabled in the hypervisor via the 'kvm-intel.ept' parameter.
+
+There is ongoing research and development for new mitigation mechanisms to
+address the performance impact of disabling SMT or EPT.
+
+.. _mitigation_control_command_line:
+
+Mitigation control on the kernel command line
+---------------------------------------------
+
+The kernel command line allows to control the L1TF mitigations at boot
+time with the option "l1tf=". The valid arguments for this option are:
+
+  ============  =============================================================
+  full		Provides all available mitigations for the L1TF
+		vulnerability. Disables SMT and enables all mitigations in
+		the hypervisors, i.e. unconditional L1D flushing
+
+		SMT control and L1D flush control via the sysfs interface
+		is still possible after boot.  Hypervisors will issue a
+		warning when the first VM is started in a potentially
+		insecure configuration, i.e. SMT enabled or L1D flush
+		disabled.
+
+  full,force	Same as 'full', but disables SMT and L1D flush runtime
+		control. Implies the 'nosmt=force' command line option.
+		(i.e. sysfs control of SMT is disabled.)
+
+  flush		Leaves SMT enabled and enables the default hypervisor
+		mitigation, i.e. conditional L1D flushing
+
+		SMT control and L1D flush control via the sysfs interface
+		is still possible after boot.  Hypervisors will issue a
+		warning when the first VM is started in a potentially
+		insecure configuration, i.e. SMT enabled or L1D flush
+		disabled.
+
+  flush,nosmt	Disables SMT and enables the default hypervisor mitigation,
+		i.e. conditional L1D flushing.
+
+		SMT control and L1D flush control via the sysfs interface
+		is still possible after boot.  Hypervisors will issue a
+		warning when the first VM is started in a potentially
+		insecure configuration, i.e. SMT enabled or L1D flush
+		disabled.
+
+  flush,nowarn	Same as 'flush', but hypervisors will not warn when a VM is
+		started in a potentially insecure configuration.
+
+  off		Disables hypervisor mitigations and doesn't emit any
+		warnings.
+		It also drops the swap size and available RAM limit restrictions
+		on both hypervisor and bare metal.
+
+  ============  =============================================================
+
+The default is 'flush'. For details about L1D flushing see :ref:`l1d_flush`.
+
+
+.. _mitigation_control_kvm:
+
+Mitigation control for KVM - module parameter
+-------------------------------------------------------------
+
+The KVM hypervisor mitigation mechanism, flushing the L1D cache when
+entering a guest, can be controlled with a module parameter.
+
+The option/parameter is "kvm-intel.vmentry_l1d_flush=". It takes the
+following arguments:
+
+  ============  ==============================================================
+  always	L1D cache flush on every VMENTER.
+
+  cond		Flush L1D on VMENTER only when the code between VMEXIT and
+		VMENTER can leak host memory which is considered
+		interesting for an attacker. This still can leak host memory
+		which allows e.g. to determine the hosts address space layout.
+
+  never		Disables the mitigation
+  ============  ==============================================================
+
+The parameter can be provided on the kernel command line, as a module
+parameter when loading the modules and at runtime modified via the sysfs
+file:
+
+/sys/module/kvm_intel/parameters/vmentry_l1d_flush
+
+The default is 'cond'. If 'l1tf=full,force' is given on the kernel command
+line, then 'always' is enforced and the kvm-intel.vmentry_l1d_flush
+module parameter is ignored and writes to the sysfs file are rejected.
+
+.. _mitigation_selection:
+
+Mitigation selection guide
+--------------------------
+
+1. No virtualization in use
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   The system is protected by the kernel unconditionally and no further
+   action is required.
+
+2. Virtualization with trusted guests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   If the guest comes from a trusted source and the guest OS kernel is
+   guaranteed to have the L1TF mitigations in place the system is fully
+   protected against L1TF and no further action is required.
+
+   To avoid the overhead of the default L1D flushing on VMENTER the
+   administrator can disable the flushing via the kernel command line and
+   sysfs control files. See :ref:`mitigation_control_command_line` and
+   :ref:`mitigation_control_kvm`.
+
+
+3. Virtualization with untrusted guests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+3.1. SMT not supported or disabled
+""""""""""""""""""""""""""""""""""
+
+  If SMT is not supported by the processor or disabled in the BIOS or by
+  the kernel, it's only required to enforce L1D flushing on VMENTER.
+
+  Conditional L1D flushing is the default behaviour and can be tuned. See
+  :ref:`mitigation_control_command_line` and :ref:`mitigation_control_kvm`.
+
+3.2. EPT not supported or disabled
+""""""""""""""""""""""""""""""""""
+
+  If EPT is not supported by the processor or disabled in the hypervisor,
+  the system is fully protected. SMT can stay enabled and L1D flushing on
+  VMENTER is not required.
+
+  EPT can be disabled in the hypervisor via the 'kvm-intel.ept' parameter.
+
+3.3. SMT and EPT supported and active
+"""""""""""""""""""""""""""""""""""""
+
+  If SMT and EPT are supported and active then various degrees of
+  mitigations can be employed:
+
+  - L1D flushing on VMENTER:
+
+    L1D flushing on VMENTER is the minimal protection requirement, but it
+    is only potent in combination with other mitigation methods.
+
+    Conditional L1D flushing is the default behaviour and can be tuned. See
+    :ref:`mitigation_control_command_line` and :ref:`mitigation_control_kvm`.
+
+  - Guest confinement:
+
+    Confinement of guests to a single or a group of physical cores which
+    are not running any other processes, can reduce the attack surface
+    significantly, but interrupts, soft interrupts and kernel threads can
+    still expose valuable data to a potential attacker. See
+    :ref:`guest_confinement`.
+
+  - Interrupt isolation:
+
+    Isolating the guest CPUs from interrupts can reduce the attack surface
+    further, but still allows a malicious guest to explore a limited amount
+    of host physical memory. This can at least be used to gain knowledge
+    about the host address space layout. The interrupts which have a fixed
+    affinity to the CPUs which run the untrusted guests can depending on
+    the scenario still trigger soft interrupts and schedule kernel threads
+    which might expose valuable information. See
+    :ref:`interrupt_isolation`.
+
+The above three mitigation methods combined can provide protection to a
+certain degree, but the risk of the remaining attack surface has to be
+carefully analyzed. For full protection the following methods are
+available:
+
+  - Disabling SMT:
+
+    Disabling SMT and enforcing the L1D flushing provides the maximum
+    amount of protection. This mitigation is not depending on any of the
+    above mitigation methods.
+
+    SMT control and L1D flushing can be tuned by the command line
+    parameters 'nosmt', 'l1tf', 'kvm-intel.vmentry_l1d_flush' and at run
+    time with the matching sysfs control files. See :ref:`smt_control`,
+    :ref:`mitigation_control_command_line` and
+    :ref:`mitigation_control_kvm`.
+
+  - Disabling EPT:
+
+    Disabling EPT provides the maximum amount of protection as well. It is
+    not depending on any of the above mitigation methods. SMT can stay
+    enabled and L1D flushing is not required, but the performance impact is
+    significant.
+
+    EPT can be disabled in the hypervisor via the 'kvm-intel.ept'
+    parameter.
+
+3.4. Nested virtual machines
+""""""""""""""""""""""""""""
+
+When nested virtualization is in use, three operating systems are involved:
+the bare metal hypervisor, the nested hypervisor and the nested virtual
+machine.  VMENTER operations from the nested hypervisor into the nested
+guest will always be processed by the bare metal hypervisor. If KVM is the
+bare metal hypervisor it will:
+
+ - Flush the L1D cache on every switch from the nested hypervisor to the
+   nested virtual machine, so that the nested hypervisor's secrets are not
+   exposed to the nested virtual machine;
+
+ - Flush the L1D cache on every switch from the nested virtual machine to
+   the nested hypervisor; this is a complex operation, and flushing the L1D
+   cache avoids that the bare metal hypervisor's secrets are exposed to the
+   nested virtual machine;
+
+ - Instruct the nested hypervisor to not perform any L1D cache flush. This
+   is an optimization to avoid double L1D flushing.
+
+
+.. _default_mitigations:
+
+Default mitigations
+-------------------
+
+  The kernel default mitigations for vulnerable processors are:
+
+  - PTE inversion to protect against malicious user space. This is done
+    unconditionally and cannot be controlled. The swap storage is limited
+    to ~16TB.
+
+  - L1D conditional flushing on VMENTER when EPT is enabled for
+    a guest.
+
+  The kernel does not by default enforce the disabling of SMT, which leaves
+  SMT systems vulnerable when running untrusted guests with EPT enabled.
+
+  The rationale for this choice is:
+
+  - Force disabling SMT can break existing setups, especially with
+    unattended updates.
+
+  - If regular users run untrusted guests on their machine, then L1TF is
+    just an add on to other malware which might be embedded in an untrusted
+    guest, e.g. spam-bots or attacks on the local network.
+
+    There is no technical way to prevent a user from running untrusted code
+    on their machines blindly.
+
+  - It's technically extremely unlikely and from today's knowledge even
+    impossible that L1TF can be exploited via the most popular attack
+    mechanisms like JavaScript because these mechanisms have no way to
+    control PTEs. If this would be possible and not other mitigation would
+    be possible, then the default might be different.
+
+  - The administrators of cloud and hosting setups have to carefully
+    analyze the risk for their scenarios and make the appropriate
+    mitigation choices, which might even vary across their deployed
+    machines and also result in other changes of their overall setup.
+    There is no way for the kernel to provide a sensible default for this
+    kind of scenarios.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/admin-guide/hw-vuln/mds.rst linux-libre-5.1.21-gnu/Documentation/admin-guide/hw-vuln/mds.rst
--- linux-libre-5.1-gnu/Documentation/admin-guide/hw-vuln/mds.rst	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/Documentation/admin-guide/hw-vuln/mds.rst	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,308 @@
+MDS - Microarchitectural Data Sampling
+======================================
+
+Microarchitectural Data Sampling is a hardware vulnerability which allows
+unprivileged speculative access to data which is available in various CPU
+internal buffers.
+
+Affected processors
+-------------------
+
+This vulnerability affects a wide range of Intel processors. The
+vulnerability is not present on:
+
+   - Processors from AMD, Centaur and other non Intel vendors
+
+   - Older processor models, where the CPU family is < 6
+
+   - Some Atoms (Bonnell, Saltwell, Goldmont, GoldmontPlus)
+
+   - Intel processors which have the ARCH_CAP_MDS_NO bit set in the
+     IA32_ARCH_CAPABILITIES MSR.
+
+Whether a processor is affected or not can be read out from the MDS
+vulnerability file in sysfs. See :ref:`mds_sys_info`.
+
+Not all processors are affected by all variants of MDS, but the mitigation
+is identical for all of them so the kernel treats them as a single
+vulnerability.
+
+Related CVEs
+------------
+
+The following CVE entries are related to the MDS vulnerability:
+
+   ==============  =====  ===================================================
+   CVE-2018-12126  MSBDS  Microarchitectural Store Buffer Data Sampling
+   CVE-2018-12130  MFBDS  Microarchitectural Fill Buffer Data Sampling
+   CVE-2018-12127  MLPDS  Microarchitectural Load Port Data Sampling
+   CVE-2019-11091  MDSUM  Microarchitectural Data Sampling Uncacheable Memory
+   ==============  =====  ===================================================
+
+Problem
+-------
+
+When performing store, load, L1 refill operations, processors write data
+into temporary microarchitectural structures (buffers). The data in the
+buffer can be forwarded to load operations as an optimization.
+
+Under certain conditions, usually a fault/assist caused by a load
+operation, data unrelated to the load memory address can be speculatively
+forwarded from the buffers. Because the load operation causes a fault or
+assist and its result will be discarded, the forwarded data will not cause
+incorrect program execution or state changes. But a malicious operation
+may be able to forward this speculative data to a disclosure gadget which
+allows in turn to infer the value via a cache side channel attack.
+
+Because the buffers are potentially shared between Hyper-Threads cross
+Hyper-Thread attacks are possible.
+
+Deeper technical information is available in the MDS specific x86
+architecture section: :ref:`Documentation/x86/mds.rst <mds>`.
+
+
+Attack scenarios
+----------------
+
+Attacks against the MDS vulnerabilities can be mounted from malicious non
+priviledged user space applications running on hosts or guest. Malicious
+guest OSes can obviously mount attacks as well.
+
+Contrary to other speculation based vulnerabilities the MDS vulnerability
+does not allow the attacker to control the memory target address. As a
+consequence the attacks are purely sampling based, but as demonstrated with
+the TLBleed attack samples can be postprocessed successfully.
+
+Web-Browsers
+^^^^^^^^^^^^
+
+  It's unclear whether attacks through Web-Browsers are possible at
+  all. The exploitation through Java-Script is considered very unlikely,
+  but other widely used web technologies like Webassembly could possibly be
+  abused.
+
+
+.. _mds_sys_info:
+
+MDS system information
+-----------------------
+
+The Linux kernel provides a sysfs interface to enumerate the current MDS
+status of the system: whether the system is vulnerable, and which
+mitigations are active. The relevant sysfs file is:
+
+/sys/devices/system/cpu/vulnerabilities/mds
+
+The possible values in this file are:
+
+  .. list-table::
+
+     * - 'Not affected'
+       - The processor is not vulnerable
+     * - 'Vulnerable'
+       - The processor is vulnerable, but no mitigation enabled
+     * - 'Vulnerable: Clear CPU buffers attempted, no microcode'
+       - The processor is vulnerable but microcode is not updated.
+
+         The mitigation is enabled on a best effort basis. See :ref:`vmwerv`
+     * - 'Mitigation: Clear CPU buffers'
+       - The processor is vulnerable and the CPU buffer clearing mitigation is
+         enabled.
+
+If the processor is vulnerable then the following information is appended
+to the above information:
+
+    ========================  ============================================
+    'SMT vulnerable'          SMT is enabled
+    'SMT mitigated'           SMT is enabled and mitigated
+    'SMT disabled'            SMT is disabled
+    'SMT Host state unknown'  Kernel runs in a VM, Host SMT state unknown
+    ========================  ============================================
+
+.. _vmwerv:
+
+Best effort mitigation mode
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  If the processor is vulnerable, but the availability of the microcode based
+  mitigation mechanism is not advertised via CPUID the kernel selects a best
+  effort mitigation mode.  This mode invokes the mitigation instructions
+  without a guarantee that they clear the CPU buffers.
+
+  This is done to address virtualization scenarios where the host has the
+  microcode update applied, but the hypervisor is not yet updated to expose
+  the CPUID to the guest. If the host has updated microcode the protection
+  takes effect otherwise a few cpu cycles are wasted pointlessly.
+
+  The state in the mds sysfs file reflects this situation accordingly.
+
+
+Mitigation mechanism
+-------------------------
+
+The kernel detects the affected CPUs and the presence of the microcode
+which is required.
+
+If a CPU is affected and the microcode is available, then the kernel
+enables the mitigation by default. The mitigation can be controlled at boot
+time via a kernel command line option. See
+:ref:`mds_mitigation_control_command_line`.
+
+.. _cpu_buffer_clear:
+
+CPU buffer clearing
+^^^^^^^^^^^^^^^^^^^
+
+  The mitigation for MDS clears the affected CPU buffers on return to user
+  space and when entering a guest.
+
+  If SMT is enabled it also clears the buffers on idle entry when the CPU
+  is only affected by MSBDS and not any other MDS variant, because the
+  other variants cannot be protected against cross Hyper-Thread attacks.
+
+  For CPUs which are only affected by MSBDS the user space, guest and idle
+  transition mitigations are sufficient and SMT is not affected.
+
+.. _virt_mechanism:
+
+Virtualization mitigation
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  The protection for host to guest transition depends on the L1TF
+  vulnerability of the CPU:
+
+  - CPU is affected by L1TF:
+
+    If the L1D flush mitigation is enabled and up to date microcode is
+    available, the L1D flush mitigation is automatically protecting the
+    guest transition.
+
+    If the L1D flush mitigation is disabled then the MDS mitigation is
+    invoked explicit when the host MDS mitigation is enabled.
+
+    For details on L1TF and virtualization see:
+    :ref:`Documentation/admin-guide/hw-vuln//l1tf.rst <mitigation_control_kvm>`.
+
+  - CPU is not affected by L1TF:
+
+    CPU buffers are flushed before entering the guest when the host MDS
+    mitigation is enabled.
+
+  The resulting MDS protection matrix for the host to guest transition:
+
+  ============ ===== ============= ============ =================
+   L1TF         MDS   VMX-L1FLUSH   Host MDS     MDS-State
+
+   Don't care   No    Don't care    N/A          Not affected
+
+   Yes          Yes   Disabled      Off          Vulnerable
+
+   Yes          Yes   Disabled      Full         Mitigated
+
+   Yes          Yes   Enabled       Don't care   Mitigated
+
+   No           Yes   N/A           Off          Vulnerable
+
+   No           Yes   N/A           Full         Mitigated
+  ============ ===== ============= ============ =================
+
+  This only covers the host to guest transition, i.e. prevents leakage from
+  host to guest, but does not protect the guest internally. Guests need to
+  have their own protections.
+
+.. _xeon_phi:
+
+XEON PHI specific considerations
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  The XEON PHI processor family is affected by MSBDS which can be exploited
+  cross Hyper-Threads when entering idle states. Some XEON PHI variants allow
+  to use MWAIT in user space (Ring 3) which opens an potential attack vector
+  for malicious user space. The exposure can be disabled on the kernel
+  command line with the 'ring3mwait=disable' command line option.
+
+  XEON PHI is not affected by the other MDS variants and MSBDS is mitigated
+  before the CPU enters a idle state. As XEON PHI is not affected by L1TF
+  either disabling SMT is not required for full protection.
+
+.. _mds_smt_control:
+
+SMT control
+^^^^^^^^^^^
+
+  All MDS variants except MSBDS can be attacked cross Hyper-Threads. That
+  means on CPUs which are affected by MFBDS or MLPDS it is necessary to
+  disable SMT for full protection. These are most of the affected CPUs; the
+  exception is XEON PHI, see :ref:`xeon_phi`.
+
+  Disabling SMT can have a significant performance impact, but the impact
+  depends on the type of workloads.
+
+  See the relevant chapter in the L1TF mitigation documentation for details:
+  :ref:`Documentation/admin-guide/hw-vuln/l1tf.rst <smt_control>`.
+
+
+.. _mds_mitigation_control_command_line:
+
+Mitigation control on the kernel command line
+---------------------------------------------
+
+The kernel command line allows to control the MDS mitigations at boot
+time with the option "mds=". The valid arguments for this option are:
+
+  ============  =============================================================
+  full		If the CPU is vulnerable, enable all available mitigations
+		for the MDS vulnerability, CPU buffer clearing on exit to
+		userspace and when entering a VM. Idle transitions are
+		protected as well if SMT is enabled.
+
+		It does not automatically disable SMT.
+
+  full,nosmt	The same as mds=full, with SMT disabled on vulnerable
+		CPUs.  This is the complete mitigation.
+
+  off		Disables MDS mitigations completely.
+
+  ============  =============================================================
+
+Not specifying this option is equivalent to "mds=full".
+
+
+Mitigation selection guide
+--------------------------
+
+1. Trusted userspace
+^^^^^^^^^^^^^^^^^^^^
+
+   If all userspace applications are from a trusted source and do not
+   execute untrusted code which is supplied externally, then the mitigation
+   can be disabled.
+
+
+2. Virtualization with trusted guests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   The same considerations as above versus trusted user space apply.
+
+3. Virtualization with untrusted guests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   The protection depends on the state of the L1TF mitigations.
+   See :ref:`virt_mechanism`.
+
+   If the MDS mitigation is enabled and SMT is disabled, guest to host and
+   guest to guest attacks are prevented.
+
+.. _mds_default_mitigations:
+
+Default mitigations
+-------------------
+
+  The kernel default mitigations for vulnerable processors are:
+
+  - Enable CPU buffer clearing
+
+  The kernel does not by default enforce the disabling of SMT, which leaves
+  SMT systems vulnerable when running untrusted code. The same rationale as
+  for L1TF applies.
+  See :ref:`Documentation/admin-guide/hw-vuln//l1tf.rst <default_mitigations>`.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/admin-guide/hw-vuln/spectre.rst linux-libre-5.1.21-gnu/Documentation/admin-guide/hw-vuln/spectre.rst
--- linux-libre-5.1-gnu/Documentation/admin-guide/hw-vuln/spectre.rst	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/Documentation/admin-guide/hw-vuln/spectre.rst	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,697 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Spectre Side Channels
+=====================
+
+Spectre is a class of side channel attacks that exploit branch prediction
+and speculative execution on modern CPUs to read memory, possibly
+bypassing access controls. Speculative execution side channel exploits
+do not modify memory but attempt to infer privileged data in the memory.
+
+This document covers Spectre variant 1 and Spectre variant 2.
+
+Affected processors
+-------------------
+
+Speculative execution side channel methods affect a wide range of modern
+high performance processors, since most modern high speed processors
+use branch prediction and speculative execution.
+
+The following CPUs are vulnerable:
+
+    - Intel Core, Atom, Pentium, and Xeon processors
+
+    - AMD Phenom, EPYC, and Zen processors
+
+    - IBM POWER and zSeries processors
+
+    - Higher end ARM processors
+
+    - Apple CPUs
+
+    - Higher end MIPS CPUs
+
+    - Likely most other high performance CPUs. Contact your CPU vendor for details.
+
+Whether a processor is affected or not can be read out from the Spectre
+vulnerability files in sysfs. See :ref:`spectre_sys_info`.
+
+Related CVEs
+------------
+
+The following CVE entries describe Spectre variants:
+
+   =============   =======================  =================
+   CVE-2017-5753   Bounds check bypass      Spectre variant 1
+   CVE-2017-5715   Branch target injection  Spectre variant 2
+   =============   =======================  =================
+
+Problem
+-------
+
+CPUs use speculative operations to improve performance. That may leave
+traces of memory accesses or computations in the processor's caches,
+buffers, and branch predictors. Malicious software may be able to
+influence the speculative execution paths, and then use the side effects
+of the speculative execution in the CPUs' caches and buffers to infer
+privileged data touched during the speculative execution.
+
+Spectre variant 1 attacks take advantage of speculative execution of
+conditional branches, while Spectre variant 2 attacks use speculative
+execution of indirect branches to leak privileged memory.
+See :ref:`[1] <spec_ref1>` :ref:`[5] <spec_ref5>` :ref:`[7] <spec_ref7>`
+:ref:`[10] <spec_ref10>` :ref:`[11] <spec_ref11>`.
+
+Spectre variant 1 (Bounds Check Bypass)
+---------------------------------------
+
+The bounds check bypass attack :ref:`[2] <spec_ref2>` takes advantage
+of speculative execution that bypasses conditional branch instructions
+used for memory access bounds check (e.g. checking if the index of an
+array results in memory access within a valid range). This results in
+memory accesses to invalid memory (with out-of-bound index) that are
+done speculatively before validation checks resolve. Such speculative
+memory accesses can leave side effects, creating side channels which
+leak information to the attacker.
+
+There are some extensions of Spectre variant 1 attacks for reading data
+over the network, see :ref:`[12] <spec_ref12>`. However such attacks
+are difficult, low bandwidth, fragile, and are considered low risk.
+
+Spectre variant 2 (Branch Target Injection)
+-------------------------------------------
+
+The branch target injection attack takes advantage of speculative
+execution of indirect branches :ref:`[3] <spec_ref3>`.  The indirect
+branch predictors inside the processor used to guess the target of
+indirect branches can be influenced by an attacker, causing gadget code
+to be speculatively executed, thus exposing sensitive data touched by
+the victim. The side effects left in the CPU's caches during speculative
+execution can be measured to infer data values.
+
+.. _poison_btb:
+
+In Spectre variant 2 attacks, the attacker can steer speculative indirect
+branches in the victim to gadget code by poisoning the branch target
+buffer of a CPU used for predicting indirect branch addresses. Such
+poisoning could be done by indirect branching into existing code,
+with the address offset of the indirect branch under the attacker's
+control. Since the branch prediction on impacted hardware does not
+fully disambiguate branch address and uses the offset for prediction,
+this could cause privileged code's indirect branch to jump to a gadget
+code with the same offset.
+
+The most useful gadgets take an attacker-controlled input parameter (such
+as a register value) so that the memory read can be controlled. Gadgets
+without input parameters might be possible, but the attacker would have
+very little control over what memory can be read, reducing the risk of
+the attack revealing useful data.
+
+One other variant 2 attack vector is for the attacker to poison the
+return stack buffer (RSB) :ref:`[13] <spec_ref13>` to cause speculative
+subroutine return instruction execution to go to a gadget.  An attacker's
+imbalanced subroutine call instructions might "poison" entries in the
+return stack buffer which are later consumed by a victim's subroutine
+return instructions.  This attack can be mitigated by flushing the return
+stack buffer on context switch, or virtual machine (VM) exit.
+
+On systems with simultaneous multi-threading (SMT), attacks are possible
+from the sibling thread, as level 1 cache and branch target buffer
+(BTB) may be shared between hardware threads in a CPU core.  A malicious
+program running on the sibling thread may influence its peer's BTB to
+steer its indirect branch speculations to gadget code, and measure the
+speculative execution's side effects left in level 1 cache to infer the
+victim's data.
+
+Attack scenarios
+----------------
+
+The following list of attack scenarios have been anticipated, but may
+not cover all possible attack vectors.
+
+1. A user process attacking the kernel
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   The attacker passes a parameter to the kernel via a register or
+   via a known address in memory during a syscall. Such parameter may
+   be used later by the kernel as an index to an array or to derive
+   a pointer for a Spectre variant 1 attack.  The index or pointer
+   is invalid, but bound checks are bypassed in the code branch taken
+   for speculative execution. This could cause privileged memory to be
+   accessed and leaked.
+
+   For kernel code that has been identified where data pointers could
+   potentially be influenced for Spectre attacks, new "nospec" accessor
+   macros are used to prevent speculative loading of data.
+
+   Spectre variant 2 attacker can :ref:`poison <poison_btb>` the branch
+   target buffer (BTB) before issuing syscall to launch an attack.
+   After entering the kernel, the kernel could use the poisoned branch
+   target buffer on indirect jump and jump to gadget code in speculative
+   execution.
+
+   If an attacker tries to control the memory addresses leaked during
+   speculative execution, he would also need to pass a parameter to the
+   gadget, either through a register or a known address in memory. After
+   the gadget has executed, he can measure the side effect.
+
+   The kernel can protect itself against consuming poisoned branch
+   target buffer entries by using return trampolines (also known as
+   "retpoline") :ref:`[3] <spec_ref3>` :ref:`[9] <spec_ref9>` for all
+   indirect branches. Return trampolines trap speculative execution paths
+   to prevent jumping to gadget code during speculative execution.
+   x86 CPUs with Enhanced Indirect Branch Restricted Speculation
+   (Enhanced IBRS) available in hardware should use the feature to
+   mitigate Spectre variant 2 instead of retpoline. Enhanced IBRS is
+   more efficient than retpoline.
+
+   There may be gadget code in firmware which could be exploited with
+   Spectre variant 2 attack by a rogue user process. To mitigate such
+   attacks on x86, Indirect Branch Restricted Speculation (IBRS) feature
+   is turned on before the kernel invokes any firmware code.
+
+2. A user process attacking another user process
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   A malicious user process can try to attack another user process,
+   either via a context switch on the same hardware thread, or from the
+   sibling hyperthread sharing a physical processor core on simultaneous
+   multi-threading (SMT) system.
+
+   Spectre variant 1 attacks generally require passing parameters
+   between the processes, which needs a data passing relationship, such
+   as remote procedure calls (RPC).  Those parameters are used in gadget
+   code to derive invalid data pointers accessing privileged memory in
+   the attacked process.
+
+   Spectre variant 2 attacks can be launched from a rogue process by
+   :ref:`poisoning <poison_btb>` the branch target buffer.  This can
+   influence the indirect branch targets for a victim process that either
+   runs later on the same hardware thread, or running concurrently on
+   a sibling hardware thread sharing the same physical core.
+
+   A user process can protect itself against Spectre variant 2 attacks
+   by using the prctl() syscall to disable indirect branch speculation
+   for itself.  An administrator can also cordon off an unsafe process
+   from polluting the branch target buffer by disabling the process's
+   indirect branch speculation. This comes with a performance cost
+   from not using indirect branch speculation and clearing the branch
+   target buffer.  When SMT is enabled on x86, for a process that has
+   indirect branch speculation disabled, Single Threaded Indirect Branch
+   Predictors (STIBP) :ref:`[4] <spec_ref4>` are turned on to prevent the
+   sibling thread from controlling branch target buffer.  In addition,
+   the Indirect Branch Prediction Barrier (IBPB) is issued to clear the
+   branch target buffer when context switching to and from such process.
+
+   On x86, the return stack buffer is stuffed on context switch.
+   This prevents the branch target buffer from being used for branch
+   prediction when the return stack buffer underflows while switching to
+   a deeper call stack. Any poisoned entries in the return stack buffer
+   left by the previous process will also be cleared.
+
+   User programs should use address space randomization to make attacks
+   more difficult (Set /proc/sys/kernel/randomize_va_space = 1 or 2).
+
+3. A virtualized guest attacking the host
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   The attack mechanism is similar to how user processes attack the
+   kernel.  The kernel is entered via hyper-calls or other virtualization
+   exit paths.
+
+   For Spectre variant 1 attacks, rogue guests can pass parameters
+   (e.g. in registers) via hyper-calls to derive invalid pointers to
+   speculate into privileged memory after entering the kernel.  For places
+   where such kernel code has been identified, nospec accessor macros
+   are used to stop speculative memory access.
+
+   For Spectre variant 2 attacks, rogue guests can :ref:`poison
+   <poison_btb>` the branch target buffer or return stack buffer, causing
+   the kernel to jump to gadget code in the speculative execution paths.
+
+   To mitigate variant 2, the host kernel can use return trampolines
+   for indirect branches to bypass the poisoned branch target buffer,
+   and flushing the return stack buffer on VM exit.  This prevents rogue
+   guests from affecting indirect branching in the host kernel.
+
+   To protect host processes from rogue guests, host processes can have
+   indirect branch speculation disabled via prctl().  The branch target
+   buffer is cleared before context switching to such processes.
+
+4. A virtualized guest attacking other guest
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   A rogue guest may attack another guest to get data accessible by the
+   other guest.
+
+   Spectre variant 1 attacks are possible if parameters can be passed
+   between guests.  This may be done via mechanisms such as shared memory
+   or message passing.  Such parameters could be used to derive data
+   pointers to privileged data in guest.  The privileged data could be
+   accessed by gadget code in the victim's speculation paths.
+
+   Spectre variant 2 attacks can be launched from a rogue guest by
+   :ref:`poisoning <poison_btb>` the branch target buffer or the return
+   stack buffer. Such poisoned entries could be used to influence
+   speculation execution paths in the victim guest.
+
+   Linux kernel mitigates attacks to other guests running in the same
+   CPU hardware thread by flushing the return stack buffer on VM exit,
+   and clearing the branch target buffer before switching to a new guest.
+
+   If SMT is used, Spectre variant 2 attacks from an untrusted guest
+   in the sibling hyperthread can be mitigated by the administrator,
+   by turning off the unsafe guest's indirect branch speculation via
+   prctl().  A guest can also protect itself by turning on microcode
+   based mitigations (such as IBPB or STIBP on x86) within the guest.
+
+.. _spectre_sys_info:
+
+Spectre system information
+--------------------------
+
+The Linux kernel provides a sysfs interface to enumerate the current
+mitigation status of the system for Spectre: whether the system is
+vulnerable, and which mitigations are active.
+
+The sysfs file showing Spectre variant 1 mitigation status is:
+
+   /sys/devices/system/cpu/vulnerabilities/spectre_v1
+
+The possible values in this file are:
+
+  =======================================  =================================
+  'Mitigation: __user pointer sanitation'  Protection in kernel on a case by
+                                           case base with explicit pointer
+                                           sanitation.
+  =======================================  =================================
+
+However, the protections are put in place on a case by case basis,
+and there is no guarantee that all possible attack vectors for Spectre
+variant 1 are covered.
+
+The spectre_v2 kernel file reports if the kernel has been compiled with
+retpoline mitigation or if the CPU has hardware mitigation, and if the
+CPU has support for additional process-specific mitigation.
+
+This file also reports CPU features enabled by microcode to mitigate
+attack between user processes:
+
+1. Indirect Branch Prediction Barrier (IBPB) to add additional
+   isolation between processes of different users.
+2. Single Thread Indirect Branch Predictors (STIBP) to add additional
+   isolation between CPU threads running on the same core.
+
+These CPU features may impact performance when used and can be enabled
+per process on a case-by-case base.
+
+The sysfs file showing Spectre variant 2 mitigation status is:
+
+   /sys/devices/system/cpu/vulnerabilities/spectre_v2
+
+The possible values in this file are:
+
+  - Kernel status:
+
+  ====================================  =================================
+  'Not affected'                        The processor is not vulnerable
+  'Vulnerable'                          Vulnerable, no mitigation
+  'Mitigation: Full generic retpoline'  Software-focused mitigation
+  'Mitigation: Full AMD retpoline'      AMD-specific software mitigation
+  'Mitigation: Enhanced IBRS'           Hardware-focused mitigation
+  ====================================  =================================
+
+  - Firmware status: Show if Indirect Branch Restricted Speculation (IBRS) is
+    used to protect against Spectre variant 2 attacks when calling firmware (x86 only).
+
+  ========== =============================================================
+  'IBRS_FW'  Protection against user program attacks when calling firmware
+  ========== =============================================================
+
+  - Indirect branch prediction barrier (IBPB) status for protection between
+    processes of different users. This feature can be controlled through
+    prctl() per process, or through kernel command line options. This is
+    an x86 only feature. For more details see below.
+
+  ===================   ========================================================
+  'IBPB: disabled'      IBPB unused
+  'IBPB: always-on'     Use IBPB on all tasks
+  'IBPB: conditional'   Use IBPB on SECCOMP or indirect branch restricted tasks
+  ===================   ========================================================
+
+  - Single threaded indirect branch prediction (STIBP) status for protection
+    between different hyper threads. This feature can be controlled through
+    prctl per process, or through kernel command line options. This is x86
+    only feature. For more details see below.
+
+  ====================  ========================================================
+  'STIBP: disabled'     STIBP unused
+  'STIBP: forced'       Use STIBP on all tasks
+  'STIBP: conditional'  Use STIBP on SECCOMP or indirect branch restricted tasks
+  ====================  ========================================================
+
+  - Return stack buffer (RSB) protection status:
+
+  =============   ===========================================
+  'RSB filling'   Protection of RSB on context switch enabled
+  =============   ===========================================
+
+Full mitigation might require a microcode update from the CPU
+vendor. When the necessary microcode is not available, the kernel will
+report vulnerability.
+
+Turning on mitigation for Spectre variant 1 and Spectre variant 2
+-----------------------------------------------------------------
+
+1. Kernel mitigation
+^^^^^^^^^^^^^^^^^^^^
+
+   For the Spectre variant 1, vulnerable kernel code (as determined
+   by code audit or scanning tools) is annotated on a case by case
+   basis to use nospec accessor macros for bounds clipping :ref:`[2]
+   <spec_ref2>` to avoid any usable disclosure gadgets. However, it may
+   not cover all attack vectors for Spectre variant 1.
+
+   For Spectre variant 2 mitigation, the compiler turns indirect calls or
+   jumps in the kernel into equivalent return trampolines (retpolines)
+   :ref:`[3] <spec_ref3>` :ref:`[9] <spec_ref9>` to go to the target
+   addresses.  Speculative execution paths under retpolines are trapped
+   in an infinite loop to prevent any speculative execution jumping to
+   a gadget.
+
+   To turn on retpoline mitigation on a vulnerable CPU, the kernel
+   needs to be compiled with a gcc compiler that supports the
+   -mindirect-branch=thunk-extern -mindirect-branch-register options.
+   If the kernel is compiled with a Clang compiler, the compiler needs
+   to support -mretpoline-external-thunk option.  The kernel config
+   CONFIG_RETPOLINE needs to be turned on, and the CPU needs to run with
+   the latest updated microcode.
+
+   On Intel Skylake-era systems the mitigation covers most, but not all,
+   cases. See :ref:`[3] <spec_ref3>` for more details.
+
+   On CPUs with hardware mitigation for Spectre variant 2 (e.g. Enhanced
+   IBRS on x86), retpoline is automatically disabled at run time.
+
+   The retpoline mitigation is turned on by default on vulnerable
+   CPUs. It can be forced on or off by the administrator
+   via the kernel command line and sysfs control files. See
+   :ref:`spectre_mitigation_control_command_line`.
+
+   On x86, indirect branch restricted speculation is turned on by default
+   before invoking any firmware code to prevent Spectre variant 2 exploits
+   using the firmware.
+
+   Using kernel address space randomization (CONFIG_RANDOMIZE_SLAB=y
+   and CONFIG_SLAB_FREELIST_RANDOM=y in the kernel configuration) makes
+   attacks on the kernel generally more difficult.
+
+2. User program mitigation
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   User programs can mitigate Spectre variant 1 using LFENCE or "bounds
+   clipping". For more details see :ref:`[2] <spec_ref2>`.
+
+   For Spectre variant 2 mitigation, individual user programs
+   can be compiled with return trampolines for indirect branches.
+   This protects them from consuming poisoned entries in the branch
+   target buffer left by malicious software.  Alternatively, the
+   programs can disable their indirect branch speculation via prctl()
+   (See :ref:`Documentation/userspace-api/spec_ctrl.rst <set_spec_ctrl>`).
+   On x86, this will turn on STIBP to guard against attacks from the
+   sibling thread when the user program is running, and use IBPB to
+   flush the branch target buffer when switching to/from the program.
+
+   Restricting indirect branch speculation on a user program will
+   also prevent the program from launching a variant 2 attack
+   on x86.  All sand-boxed SECCOMP programs have indirect branch
+   speculation restricted by default.  Administrators can change
+   that behavior via the kernel command line and sysfs control files.
+   See :ref:`spectre_mitigation_control_command_line`.
+
+   Programs that disable their indirect branch speculation will have
+   more overhead and run slower.
+
+   User programs should use address space randomization
+   (/proc/sys/kernel/randomize_va_space = 1 or 2) to make attacks more
+   difficult.
+
+3. VM mitigation
+^^^^^^^^^^^^^^^^
+
+   Within the kernel, Spectre variant 1 attacks from rogue guests are
+   mitigated on a case by case basis in VM exit paths. Vulnerable code
+   uses nospec accessor macros for "bounds clipping", to avoid any
+   usable disclosure gadgets.  However, this may not cover all variant
+   1 attack vectors.
+
+   For Spectre variant 2 attacks from rogue guests to the kernel, the
+   Linux kernel uses retpoline or Enhanced IBRS to prevent consumption of
+   poisoned entries in branch target buffer left by rogue guests.  It also
+   flushes the return stack buffer on every VM exit to prevent a return
+   stack buffer underflow so poisoned branch target buffer could be used,
+   or attacker guests leaving poisoned entries in the return stack buffer.
+
+   To mitigate guest-to-guest attacks in the same CPU hardware thread,
+   the branch target buffer is sanitized by flushing before switching
+   to a new guest on a CPU.
+
+   The above mitigations are turned on by default on vulnerable CPUs.
+
+   To mitigate guest-to-guest attacks from sibling thread when SMT is
+   in use, an untrusted guest running in the sibling thread can have
+   its indirect branch speculation disabled by administrator via prctl().
+
+   The kernel also allows guests to use any microcode based mitigation
+   they choose to use (such as IBPB or STIBP on x86) to protect themselves.
+
+.. _spectre_mitigation_control_command_line:
+
+Mitigation control on the kernel command line
+---------------------------------------------
+
+Spectre variant 2 mitigation can be disabled or force enabled at the
+kernel command line.
+
+	nospectre_v2
+
+		[X86] Disable all mitigations for the Spectre variant 2
+		(indirect branch prediction) vulnerability. System may
+		allow data leaks with this option, which is equivalent
+		to spectre_v2=off.
+
+
+        spectre_v2=
+
+		[X86] Control mitigation of Spectre variant 2
+		(indirect branch speculation) vulnerability.
+		The default operation protects the kernel from
+		user space attacks.
+
+		on
+			unconditionally enable, implies
+			spectre_v2_user=on
+		off
+			unconditionally disable, implies
+		        spectre_v2_user=off
+		auto
+			kernel detects whether your CPU model is
+		        vulnerable
+
+		Selecting 'on' will, and 'auto' may, choose a
+		mitigation method at run time according to the
+		CPU, the available microcode, the setting of the
+		CONFIG_RETPOLINE configuration option, and the
+		compiler with which the kernel was built.
+
+		Selecting 'on' will also enable the mitigation
+		against user space to user space task attacks.
+
+		Selecting 'off' will disable both the kernel and
+		the user space protections.
+
+		Specific mitigations can also be selected manually:
+
+		retpoline
+					replace indirect branches
+		retpoline,generic
+					google's original retpoline
+		retpoline,amd
+					AMD-specific minimal thunk
+
+		Not specifying this option is equivalent to
+		spectre_v2=auto.
+
+For user space mitigation:
+
+        spectre_v2_user=
+
+		[X86] Control mitigation of Spectre variant 2
+		(indirect branch speculation) vulnerability between
+		user space tasks
+
+		on
+			Unconditionally enable mitigations. Is
+			enforced by spectre_v2=on
+
+		off
+			Unconditionally disable mitigations. Is
+			enforced by spectre_v2=off
+
+		prctl
+			Indirect branch speculation is enabled,
+			but mitigation can be enabled via prctl
+			per thread. The mitigation control state
+			is inherited on fork.
+
+		prctl,ibpb
+			Like "prctl" above, but only STIBP is
+			controlled per thread. IBPB is issued
+			always when switching between different user
+			space processes.
+
+		seccomp
+			Same as "prctl" above, but all seccomp
+			threads will enable the mitigation unless
+			they explicitly opt out.
+
+		seccomp,ibpb
+			Like "seccomp" above, but only STIBP is
+			controlled per thread. IBPB is issued
+			always when switching between different
+			user space processes.
+
+		auto
+			Kernel selects the mitigation depending on
+			the available CPU features and vulnerability.
+
+		Default mitigation:
+		If CONFIG_SECCOMP=y then "seccomp", otherwise "prctl"
+
+		Not specifying this option is equivalent to
+		spectre_v2_user=auto.
+
+		In general the kernel by default selects
+		reasonable mitigations for the current CPU. To
+		disable Spectre variant 2 mitigations, boot with
+		spectre_v2=off. Spectre variant 1 mitigations
+		cannot be disabled.
+
+Mitigation selection guide
+--------------------------
+
+1. Trusted userspace
+^^^^^^^^^^^^^^^^^^^^
+
+   If all userspace applications are from trusted sources and do not
+   execute externally supplied untrusted code, then the mitigations can
+   be disabled.
+
+2. Protect sensitive programs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   For security-sensitive programs that have secrets (e.g. crypto
+   keys), protection against Spectre variant 2 can be put in place by
+   disabling indirect branch speculation when the program is running
+   (See :ref:`Documentation/userspace-api/spec_ctrl.rst <set_spec_ctrl>`).
+
+3. Sandbox untrusted programs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+   Untrusted programs that could be a source of attacks can be cordoned
+   off by disabling their indirect branch speculation when they are run
+   (See :ref:`Documentation/userspace-api/spec_ctrl.rst <set_spec_ctrl>`).
+   This prevents untrusted programs from polluting the branch target
+   buffer.  All programs running in SECCOMP sandboxes have indirect
+   branch speculation restricted by default. This behavior can be
+   changed via the kernel command line and sysfs control files. See
+   :ref:`spectre_mitigation_control_command_line`.
+
+3. High security mode
+^^^^^^^^^^^^^^^^^^^^^
+
+   All Spectre variant 2 mitigations can be forced on
+   at boot time for all programs (See the "on" option in
+   :ref:`spectre_mitigation_control_command_line`).  This will add
+   overhead as indirect branch speculations for all programs will be
+   restricted.
+
+   On x86, branch target buffer will be flushed with IBPB when switching
+   to a new program. STIBP is left on all the time to protect programs
+   against variant 2 attacks originating from programs running on
+   sibling threads.
+
+   Alternatively, STIBP can be used only when running programs
+   whose indirect branch speculation is explicitly disabled,
+   while IBPB is still used all the time when switching to a new
+   program to clear the branch target buffer (See "ibpb" option in
+   :ref:`spectre_mitigation_control_command_line`).  This "ibpb" option
+   has less performance cost than the "on" option, which leaves STIBP
+   on all the time.
+
+References on Spectre
+---------------------
+
+Intel white papers:
+
+.. _spec_ref1:
+
+[1] `Intel analysis of speculative execution side channels <https://newsroom.intel.com/wp-content/uploads/sites/11/2018/01/Intel-Analysis-of-Speculative-Execution-Side-Channels.pdf>`_.
+
+.. _spec_ref2:
+
+[2] `Bounds check bypass <https://software.intel.com/security-software-guidance/software-guidance/bounds-check-bypass>`_.
+
+.. _spec_ref3:
+
+[3] `Deep dive: Retpoline: A branch target injection mitigation <https://software.intel.com/security-software-guidance/insights/deep-dive-retpoline-branch-target-injection-mitigation>`_.
+
+.. _spec_ref4:
+
+[4] `Deep Dive: Single Thread Indirect Branch Predictors <https://software.intel.com/security-software-guidance/insights/deep-dive-single-thread-indirect-branch-predictors>`_.
+
+AMD white papers:
+
+.. _spec_ref5:
+
+[5] `AMD64 technology indirect branch control extension <https://developer.amd.com/wp-content/resources/Architecture_Guidelines_Update_Indirect_Branch_Control.pdf>`_.
+
+.. _spec_ref6:
+
+[6] `Software techniques for managing speculation on AMD processors <https://developer.amd.com/wp-content/resources/90343-B_SoftwareTechniquesforManagingSpeculation_WP_7-18Update_FNL.pdf>`_.
+
+ARM white papers:
+
+.. _spec_ref7:
+
+[7] `Cache speculation side-channels <https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/download-the-whitepaper>`_.
+
+.. _spec_ref8:
+
+[8] `Cache speculation issues update <https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/latest-updates/cache-speculation-issues-update>`_.
+
+Google white paper:
+
+.. _spec_ref9:
+
+[9] `Retpoline: a software construct for preventing branch-target-injection <https://support.google.com/faqs/answer/7625886>`_.
+
+MIPS white paper:
+
+.. _spec_ref10:
+
+[10] `MIPS: response on speculative execution and side channel vulnerabilities <https://www.mips.com/blog/mips-response-on-speculative-execution-and-side-channel-vulnerabilities/>`_.
+
+Academic papers:
+
+.. _spec_ref11:
+
+[11] `Spectre Attacks: Exploiting Speculative Execution <https://spectreattack.com/spectre.pdf>`_.
+
+.. _spec_ref12:
+
+[12] `NetSpectre: Read Arbitrary Memory over Network <https://arxiv.org/abs/1807.10535>`_.
+
+.. _spec_ref13:
+
+[13] `Spectre Returns! Speculation Attacks using the Return Stack Buffer <https://www.usenix.org/system/files/conference/woot18/woot18-paper-koruyeh.pdf>`_.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/admin-guide/index.rst linux-libre-5.1.21-gnu/Documentation/admin-guide/index.rst
--- linux-libre-5.1-gnu/Documentation/admin-guide/index.rst	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/admin-guide/index.rst	2019-07-28 02:28:39.000000000 -0400
@@ -17,14 +17,12 @@ etc.
    kernel-parameters
    devices
 
-This section describes CPU vulnerabilities and provides an overview of the
-possible mitigations along with guidance for selecting mitigations if they
-are configurable at compile, boot or run time.
+This section describes CPU vulnerabilities and their mitigations.
 
 .. toctree::
    :maxdepth: 1
 
-   l1tf
+   hw-vuln/index
 
 Here is a set of documents aimed at users who are trying to track down
 problems and bugs in particular.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/admin-guide/kernel-parameters.txt linux-libre-5.1.21-gnu/Documentation/admin-guide/kernel-parameters.txt
--- linux-libre-5.1-gnu/Documentation/admin-guide/kernel-parameters.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/admin-guide/kernel-parameters.txt	2019-07-28 02:28:39.000000000 -0400
@@ -2141,7 +2141,7 @@
 
 			Default is 'flush'.
 
-			For details see: Documentation/admin-guide/l1tf.rst
+			For details see: Documentation/admin-guide/hw-vuln/l1tf.rst
 
 	l2cr=		[PPC]
 
@@ -2387,6 +2387,32 @@
 			Format: <first>,<last>
 			Specifies range of consoles to be captured by the MDA.
 
+	mds=		[X86,INTEL]
+			Control mitigation for the Micro-architectural Data
+			Sampling (MDS) vulnerability.
+
+			Certain CPUs are vulnerable to an exploit against CPU
+			internal buffers which can forward information to a
+			disclosure gadget under certain conditions.
+
+			In vulnerable processors, the speculatively
+			forwarded data can be used in a cache side channel
+			attack, to access data to which the attacker does
+			not have direct access.
+
+			This parameter controls the MDS mitigation. The
+			options are:
+
+			full       - Enable MDS mitigation on vulnerable CPUs
+			full,nosmt - Enable MDS mitigation and disable
+				     SMT on vulnerable CPUs
+			off        - Unconditionally disable MDS mitigation
+
+			Not specifying this option is equivalent to
+			mds=full.
+
+			For details see: Documentation/admin-guide/hw-vuln/mds.rst
+
 	mem=nn[KMG]	[KNL,BOOT] Force usage of a specific amount of memory
 			Amount of memory to be used when the kernel is not able
 			to see the whole system memory or for test.
@@ -2544,6 +2570,40 @@
 			in the "bleeding edge" mini2440 support kernel at
 			http://repo.or.cz/w/linux-2.6/mini2440.git
 
+	mitigations=
+			[X86,PPC,S390] Control optional mitigations for CPU
+			vulnerabilities.  This is a set of curated,
+			arch-independent options, each of which is an
+			aggregation of existing arch-specific options.
+
+			off
+				Disable all optional CPU mitigations.  This
+				improves system performance, but it may also
+				expose users to several CPU vulnerabilities.
+				Equivalent to: nopti [X86,PPC]
+					       nospectre_v1 [PPC]
+					       nobp=0 [S390]
+					       nospectre_v2 [X86,PPC,S390]
+					       spectre_v2_user=off [X86]
+					       spec_store_bypass_disable=off [X86,PPC]
+					       l1tf=off [X86]
+					       mds=off [X86]
+
+			auto (default)
+				Mitigate all CPU vulnerabilities, but leave SMT
+				enabled, even if it's vulnerable.  This is for
+				users who don't want to be surprised by SMT
+				getting disabled across kernel upgrades, or who
+				have other ways of avoiding SMT-based attacks.
+				Equivalent to: (default behavior)
+
+			auto,nosmt
+				Mitigate all CPU vulnerabilities, disabling SMT
+				if needed.  This is for users who always want to
+				be fully mitigated, even if it means losing SMT.
+				Equivalent to: l1tf=flush,nosmt [X86]
+					       mds=full,nosmt [X86]
+
 	mminit_loglevel=
 			[KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
 			parameter allows control of the logging verbosity for
@@ -5014,12 +5074,6 @@
 			emulate     [default] Vsyscalls turn into traps and are
 			            emulated reasonably safely.
 
-			native      Vsyscalls are native syscall instructions.
-			            This is a little bit faster than trapping
-			            and makes a few dynamic recompilers work
-			            better than they would in emulation mode.
-			            It also makes exploits much easier to write.
-
 			none        Vsyscalls don't work at all.  This makes
 			            them quite hard to use for exploits but
 			            might break your system.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/admin-guide/l1tf.rst linux-libre-5.1.21-gnu/Documentation/admin-guide/l1tf.rst
--- linux-libre-5.1-gnu/Documentation/admin-guide/l1tf.rst	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/admin-guide/l1tf.rst	1969-12-31 19:00:00.000000000 -0500
@@ -1,614 +0,0 @@
-L1TF - L1 Terminal Fault
-========================
-
-L1 Terminal Fault is a hardware vulnerability which allows unprivileged
-speculative access to data which is available in the Level 1 Data Cache
-when the page table entry controlling the virtual address, which is used
-for the access, has the Present bit cleared or other reserved bits set.
-
-Affected processors
--------------------
-
-This vulnerability affects a wide range of Intel processors. The
-vulnerability is not present on:
-
-   - Processors from AMD, Centaur and other non Intel vendors
-
-   - Older processor models, where the CPU family is < 6
-
-   - A range of Intel ATOM processors (Cedarview, Cloverview, Lincroft,
-     Penwell, Pineview, Silvermont, Airmont, Merrifield)
-
-   - The Intel XEON PHI family
-
-   - Intel processors which have the ARCH_CAP_RDCL_NO bit set in the
-     IA32_ARCH_CAPABILITIES MSR. If the bit is set the CPU is not affected
-     by the Meltdown vulnerability either. These CPUs should become
-     available by end of 2018.
-
-Whether a processor is affected or not can be read out from the L1TF
-vulnerability file in sysfs. See :ref:`l1tf_sys_info`.
-
-Related CVEs
-------------
-
-The following CVE entries are related to the L1TF vulnerability:
-
-   =============  =================  ==============================
-   CVE-2018-3615  L1 Terminal Fault  SGX related aspects
-   CVE-2018-3620  L1 Terminal Fault  OS, SMM related aspects
-   CVE-2018-3646  L1 Terminal Fault  Virtualization related aspects
-   =============  =================  ==============================
-
-Problem
--------
-
-If an instruction accesses a virtual address for which the relevant page
-table entry (PTE) has the Present bit cleared or other reserved bits set,
-then speculative execution ignores the invalid PTE and loads the referenced
-data if it is present in the Level 1 Data Cache, as if the page referenced
-by the address bits in the PTE was still present and accessible.
-
-While this is a purely speculative mechanism and the instruction will raise
-a page fault when it is retired eventually, the pure act of loading the
-data and making it available to other speculative instructions opens up the
-opportunity for side channel attacks to unprivileged malicious code,
-similar to the Meltdown attack.
-
-While Meltdown breaks the user space to kernel space protection, L1TF
-allows to attack any physical memory address in the system and the attack
-works across all protection domains. It allows an attack of SGX and also
-works from inside virtual machines because the speculation bypasses the
-extended page table (EPT) protection mechanism.
-
-
-Attack scenarios
-----------------
-
-1. Malicious user space
-^^^^^^^^^^^^^^^^^^^^^^^
-
-   Operating Systems store arbitrary information in the address bits of a
-   PTE which is marked non present. This allows a malicious user space
-   application to attack the physical memory to which these PTEs resolve.
-   In some cases user-space can maliciously influence the information
-   encoded in the address bits of the PTE, thus making attacks more
-   deterministic and more practical.
-
-   The Linux kernel contains a mitigation for this attack vector, PTE
-   inversion, which is permanently enabled and has no performance
-   impact. The kernel ensures that the address bits of PTEs, which are not
-   marked present, never point to cacheable physical memory space.
-
-   A system with an up to date kernel is protected against attacks from
-   malicious user space applications.
-
-2. Malicious guest in a virtual machine
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-   The fact that L1TF breaks all domain protections allows malicious guest
-   OSes, which can control the PTEs directly, and malicious guest user
-   space applications, which run on an unprotected guest kernel lacking the
-   PTE inversion mitigation for L1TF, to attack physical host memory.
-
-   A special aspect of L1TF in the context of virtualization is symmetric
-   multi threading (SMT). The Intel implementation of SMT is called
-   HyperThreading. The fact that Hyperthreads on the affected processors
-   share the L1 Data Cache (L1D) is important for this. As the flaw allows
-   only to attack data which is present in L1D, a malicious guest running
-   on one Hyperthread can attack the data which is brought into the L1D by
-   the context which runs on the sibling Hyperthread of the same physical
-   core. This context can be host OS, host user space or a different guest.
-
-   If the processor does not support Extended Page Tables, the attack is
-   only possible, when the hypervisor does not sanitize the content of the
-   effective (shadow) page tables.
-
-   While solutions exist to mitigate these attack vectors fully, these
-   mitigations are not enabled by default in the Linux kernel because they
-   can affect performance significantly. The kernel provides several
-   mechanisms which can be utilized to address the problem depending on the
-   deployment scenario. The mitigations, their protection scope and impact
-   are described in the next sections.
-
-   The default mitigations and the rationale for choosing them are explained
-   at the end of this document. See :ref:`default_mitigations`.
-
-.. _l1tf_sys_info:
-
-L1TF system information
------------------------
-
-The Linux kernel provides a sysfs interface to enumerate the current L1TF
-status of the system: whether the system is vulnerable, and which
-mitigations are active. The relevant sysfs file is:
-
-/sys/devices/system/cpu/vulnerabilities/l1tf
-
-The possible values in this file are:
-
-  ===========================   ===============================
-  'Not affected'		The processor is not vulnerable
-  'Mitigation: PTE Inversion'	The host protection is active
-  ===========================   ===============================
-
-If KVM/VMX is enabled and the processor is vulnerable then the following
-information is appended to the 'Mitigation: PTE Inversion' part:
-
-  - SMT status:
-
-    =====================  ================
-    'VMX: SMT vulnerable'  SMT is enabled
-    'VMX: SMT disabled'    SMT is disabled
-    =====================  ================
-
-  - L1D Flush mode:
-
-    ================================  ====================================
-    'L1D vulnerable'		      L1D flushing is disabled
-
-    'L1D conditional cache flushes'   L1D flush is conditionally enabled
-
-    'L1D cache flushes'		      L1D flush is unconditionally enabled
-    ================================  ====================================
-
-The resulting grade of protection is discussed in the following sections.
-
-
-Host mitigation mechanism
--------------------------
-
-The kernel is unconditionally protected against L1TF attacks from malicious
-user space running on the host.
-
-
-Guest mitigation mechanisms
----------------------------
-
-.. _l1d_flush:
-
-1. L1D flush on VMENTER
-^^^^^^^^^^^^^^^^^^^^^^^
-
-   To make sure that a guest cannot attack data which is present in the L1D
-   the hypervisor flushes the L1D before entering the guest.
-
-   Flushing the L1D evicts not only the data which should not be accessed
-   by a potentially malicious guest, it also flushes the guest
-   data. Flushing the L1D has a performance impact as the processor has to
-   bring the flushed guest data back into the L1D. Depending on the
-   frequency of VMEXIT/VMENTER and the type of computations in the guest
-   performance degradation in the range of 1% to 50% has been observed. For
-   scenarios where guest VMEXIT/VMENTER are rare the performance impact is
-   minimal. Virtio and mechanisms like posted interrupts are designed to
-   confine the VMEXITs to a bare minimum, but specific configurations and
-   application scenarios might still suffer from a high VMEXIT rate.
-
-   The kernel provides two L1D flush modes:
-    - conditional ('cond')
-    - unconditional ('always')
-
-   The conditional mode avoids L1D flushing after VMEXITs which execute
-   only audited code paths before the corresponding VMENTER. These code
-   paths have been verified that they cannot expose secrets or other
-   interesting data to an attacker, but they can leak information about the
-   address space layout of the hypervisor.
-
-   Unconditional mode flushes L1D on all VMENTER invocations and provides
-   maximum protection. It has a higher overhead than the conditional
-   mode. The overhead cannot be quantified correctly as it depends on the
-   workload scenario and the resulting number of VMEXITs.
-
-   The general recommendation is to enable L1D flush on VMENTER. The kernel
-   defaults to conditional mode on affected processors.
-
-   **Note**, that L1D flush does not prevent the SMT problem because the
-   sibling thread will also bring back its data into the L1D which makes it
-   attackable again.
-
-   L1D flush can be controlled by the administrator via the kernel command
-   line and sysfs control files. See :ref:`mitigation_control_command_line`
-   and :ref:`mitigation_control_kvm`.
-
-.. _guest_confinement:
-
-2. Guest VCPU confinement to dedicated physical cores
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-   To address the SMT problem, it is possible to make a guest or a group of
-   guests affine to one or more physical cores. The proper mechanism for
-   that is to utilize exclusive cpusets to ensure that no other guest or
-   host tasks can run on these cores.
-
-   If only a single guest or related guests run on sibling SMT threads on
-   the same physical core then they can only attack their own memory and
-   restricted parts of the host memory.
-
-   Host memory is attackable, when one of the sibling SMT threads runs in
-   host OS (hypervisor) context and the other in guest context. The amount
-   of valuable information from the host OS context depends on the context
-   which the host OS executes, i.e. interrupts, soft interrupts and kernel
-   threads. The amount of valuable data from these contexts cannot be
-   declared as non-interesting for an attacker without deep inspection of
-   the code.
-
-   **Note**, that assigning guests to a fixed set of physical cores affects
-   the ability of the scheduler to do load balancing and might have
-   negative effects on CPU utilization depending on the hosting
-   scenario. Disabling SMT might be a viable alternative for particular
-   scenarios.
-
-   For further information about confining guests to a single or to a group
-   of cores consult the cpusets documentation:
-
-   https://www.kernel.org/doc/Documentation/cgroup-v1/cpusets.txt
-
-.. _interrupt_isolation:
-
-3. Interrupt affinity
-^^^^^^^^^^^^^^^^^^^^^
-
-   Interrupts can be made affine to logical CPUs. This is not universally
-   true because there are types of interrupts which are truly per CPU
-   interrupts, e.g. the local timer interrupt. Aside of that multi queue
-   devices affine their interrupts to single CPUs or groups of CPUs per
-   queue without allowing the administrator to control the affinities.
-
-   Moving the interrupts, which can be affinity controlled, away from CPUs
-   which run untrusted guests, reduces the attack vector space.
-
-   Whether the interrupts with are affine to CPUs, which run untrusted
-   guests, provide interesting data for an attacker depends on the system
-   configuration and the scenarios which run on the system. While for some
-   of the interrupts it can be assumed that they won't expose interesting
-   information beyond exposing hints about the host OS memory layout, there
-   is no way to make general assumptions.
-
-   Interrupt affinity can be controlled by the administrator via the
-   /proc/irq/$NR/smp_affinity[_list] files. Limited documentation is
-   available at:
-
-   https://www.kernel.org/doc/Documentation/IRQ-affinity.txt
-
-.. _smt_control:
-
-4. SMT control
-^^^^^^^^^^^^^^
-
-   To prevent the SMT issues of L1TF it might be necessary to disable SMT
-   completely. Disabling SMT can have a significant performance impact, but
-   the impact depends on the hosting scenario and the type of workloads.
-   The impact of disabling SMT needs also to be weighted against the impact
-   of other mitigation solutions like confining guests to dedicated cores.
-
-   The kernel provides a sysfs interface to retrieve the status of SMT and
-   to control it. It also provides a kernel command line interface to
-   control SMT.
-
-   The kernel command line interface consists of the following options:
-
-     =========== ==========================================================
-     nosmt	 Affects the bring up of the secondary CPUs during boot. The
-		 kernel tries to bring all present CPUs online during the
-		 boot process. "nosmt" makes sure that from each physical
-		 core only one - the so called primary (hyper) thread is
-		 activated. Due to a design flaw of Intel processors related
-		 to Machine Check Exceptions the non primary siblings have
-		 to be brought up at least partially and are then shut down
-		 again.  "nosmt" can be undone via the sysfs interface.
-
-     nosmt=force Has the same effect as "nosmt" but it does not allow to
-		 undo the SMT disable via the sysfs interface.
-     =========== ==========================================================
-
-   The sysfs interface provides two files:
-
-   - /sys/devices/system/cpu/smt/control
-   - /sys/devices/system/cpu/smt/active
-
-   /sys/devices/system/cpu/smt/control:
-
-     This file allows to read out the SMT control state and provides the
-     ability to disable or (re)enable SMT. The possible states are:
-
-	==============  ===================================================
-	on		SMT is supported by the CPU and enabled. All
-			logical CPUs can be onlined and offlined without
-			restrictions.
-
-	off		SMT is supported by the CPU and disabled. Only
-			the so called primary SMT threads can be onlined
-			and offlined without restrictions. An attempt to
-			online a non-primary sibling is rejected
-
-	forceoff	Same as 'off' but the state cannot be controlled.
-			Attempts to write to the control file are rejected.
-
-	notsupported	The processor does not support SMT. It's therefore
-			not affected by the SMT implications of L1TF.
-			Attempts to write to the control file are rejected.
-	==============  ===================================================
-
-     The possible states which can be written into this file to control SMT
-     state are:
-
-     - on
-     - off
-     - forceoff
-
-   /sys/devices/system/cpu/smt/active:
-
-     This file reports whether SMT is enabled and active, i.e. if on any
-     physical core two or more sibling threads are online.
-
-   SMT control is also possible at boot time via the l1tf kernel command
-   line parameter in combination with L1D flush control. See
-   :ref:`mitigation_control_command_line`.
-
-5. Disabling EPT
-^^^^^^^^^^^^^^^^
-
-  Disabling EPT for virtual machines provides full mitigation for L1TF even
-  with SMT enabled, because the effective page tables for guests are
-  managed and sanitized by the hypervisor. Though disabling EPT has a
-  significant performance impact especially when the Meltdown mitigation
-  KPTI is enabled.
-
-  EPT can be disabled in the hypervisor via the 'kvm-intel.ept' parameter.
-
-There is ongoing research and development for new mitigation mechanisms to
-address the performance impact of disabling SMT or EPT.
-
-.. _mitigation_control_command_line:
-
-Mitigation control on the kernel command line
----------------------------------------------
-
-The kernel command line allows to control the L1TF mitigations at boot
-time with the option "l1tf=". The valid arguments for this option are:
-
-  ============  =============================================================
-  full		Provides all available mitigations for the L1TF
-		vulnerability. Disables SMT and enables all mitigations in
-		the hypervisors, i.e. unconditional L1D flushing
-
-		SMT control and L1D flush control via the sysfs interface
-		is still possible after boot.  Hypervisors will issue a
-		warning when the first VM is started in a potentially
-		insecure configuration, i.e. SMT enabled or L1D flush
-		disabled.
-
-  full,force	Same as 'full', but disables SMT and L1D flush runtime
-		control. Implies the 'nosmt=force' command line option.
-		(i.e. sysfs control of SMT is disabled.)
-
-  flush		Leaves SMT enabled and enables the default hypervisor
-		mitigation, i.e. conditional L1D flushing
-
-		SMT control and L1D flush control via the sysfs interface
-		is still possible after boot.  Hypervisors will issue a
-		warning when the first VM is started in a potentially
-		insecure configuration, i.e. SMT enabled or L1D flush
-		disabled.
-
-  flush,nosmt	Disables SMT and enables the default hypervisor mitigation,
-		i.e. conditional L1D flushing.
-
-		SMT control and L1D flush control via the sysfs interface
-		is still possible after boot.  Hypervisors will issue a
-		warning when the first VM is started in a potentially
-		insecure configuration, i.e. SMT enabled or L1D flush
-		disabled.
-
-  flush,nowarn	Same as 'flush', but hypervisors will not warn when a VM is
-		started in a potentially insecure configuration.
-
-  off		Disables hypervisor mitigations and doesn't emit any
-		warnings.
-		It also drops the swap size and available RAM limit restrictions
-		on both hypervisor and bare metal.
-
-  ============  =============================================================
-
-The default is 'flush'. For details about L1D flushing see :ref:`l1d_flush`.
-
-
-.. _mitigation_control_kvm:
-
-Mitigation control for KVM - module parameter
--------------------------------------------------------------
-
-The KVM hypervisor mitigation mechanism, flushing the L1D cache when
-entering a guest, can be controlled with a module parameter.
-
-The option/parameter is "kvm-intel.vmentry_l1d_flush=". It takes the
-following arguments:
-
-  ============  ==============================================================
-  always	L1D cache flush on every VMENTER.
-
-  cond		Flush L1D on VMENTER only when the code between VMEXIT and
-		VMENTER can leak host memory which is considered
-		interesting for an attacker. This still can leak host memory
-		which allows e.g. to determine the hosts address space layout.
-
-  never		Disables the mitigation
-  ============  ==============================================================
-
-The parameter can be provided on the kernel command line, as a module
-parameter when loading the modules and at runtime modified via the sysfs
-file:
-
-/sys/module/kvm_intel/parameters/vmentry_l1d_flush
-
-The default is 'cond'. If 'l1tf=full,force' is given on the kernel command
-line, then 'always' is enforced and the kvm-intel.vmentry_l1d_flush
-module parameter is ignored and writes to the sysfs file are rejected.
-
-
-Mitigation selection guide
---------------------------
-
-1. No virtualization in use
-^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-   The system is protected by the kernel unconditionally and no further
-   action is required.
-
-2. Virtualization with trusted guests
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-   If the guest comes from a trusted source and the guest OS kernel is
-   guaranteed to have the L1TF mitigations in place the system is fully
-   protected against L1TF and no further action is required.
-
-   To avoid the overhead of the default L1D flushing on VMENTER the
-   administrator can disable the flushing via the kernel command line and
-   sysfs control files. See :ref:`mitigation_control_command_line` and
-   :ref:`mitigation_control_kvm`.
-
-
-3. Virtualization with untrusted guests
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-3.1. SMT not supported or disabled
-""""""""""""""""""""""""""""""""""
-
-  If SMT is not supported by the processor or disabled in the BIOS or by
-  the kernel, it's only required to enforce L1D flushing on VMENTER.
-
-  Conditional L1D flushing is the default behaviour and can be tuned. See
-  :ref:`mitigation_control_command_line` and :ref:`mitigation_control_kvm`.
-
-3.2. EPT not supported or disabled
-""""""""""""""""""""""""""""""""""
-
-  If EPT is not supported by the processor or disabled in the hypervisor,
-  the system is fully protected. SMT can stay enabled and L1D flushing on
-  VMENTER is not required.
-
-  EPT can be disabled in the hypervisor via the 'kvm-intel.ept' parameter.
-
-3.3. SMT and EPT supported and active
-"""""""""""""""""""""""""""""""""""""
-
-  If SMT and EPT are supported and active then various degrees of
-  mitigations can be employed:
-
-  - L1D flushing on VMENTER:
-
-    L1D flushing on VMENTER is the minimal protection requirement, but it
-    is only potent in combination with other mitigation methods.
-
-    Conditional L1D flushing is the default behaviour and can be tuned. See
-    :ref:`mitigation_control_command_line` and :ref:`mitigation_control_kvm`.
-
-  - Guest confinement:
-
-    Confinement of guests to a single or a group of physical cores which
-    are not running any other processes, can reduce the attack surface
-    significantly, but interrupts, soft interrupts and kernel threads can
-    still expose valuable data to a potential attacker. See
-    :ref:`guest_confinement`.
-
-  - Interrupt isolation:
-
-    Isolating the guest CPUs from interrupts can reduce the attack surface
-    further, but still allows a malicious guest to explore a limited amount
-    of host physical memory. This can at least be used to gain knowledge
-    about the host address space layout. The interrupts which have a fixed
-    affinity to the CPUs which run the untrusted guests can depending on
-    the scenario still trigger soft interrupts and schedule kernel threads
-    which might expose valuable information. See
-    :ref:`interrupt_isolation`.
-
-The above three mitigation methods combined can provide protection to a
-certain degree, but the risk of the remaining attack surface has to be
-carefully analyzed. For full protection the following methods are
-available:
-
-  - Disabling SMT:
-
-    Disabling SMT and enforcing the L1D flushing provides the maximum
-    amount of protection. This mitigation is not depending on any of the
-    above mitigation methods.
-
-    SMT control and L1D flushing can be tuned by the command line
-    parameters 'nosmt', 'l1tf', 'kvm-intel.vmentry_l1d_flush' and at run
-    time with the matching sysfs control files. See :ref:`smt_control`,
-    :ref:`mitigation_control_command_line` and
-    :ref:`mitigation_control_kvm`.
-
-  - Disabling EPT:
-
-    Disabling EPT provides the maximum amount of protection as well. It is
-    not depending on any of the above mitigation methods. SMT can stay
-    enabled and L1D flushing is not required, but the performance impact is
-    significant.
-
-    EPT can be disabled in the hypervisor via the 'kvm-intel.ept'
-    parameter.
-
-3.4. Nested virtual machines
-""""""""""""""""""""""""""""
-
-When nested virtualization is in use, three operating systems are involved:
-the bare metal hypervisor, the nested hypervisor and the nested virtual
-machine.  VMENTER operations from the nested hypervisor into the nested
-guest will always be processed by the bare metal hypervisor. If KVM is the
-bare metal hypervisor it will:
-
- - Flush the L1D cache on every switch from the nested hypervisor to the
-   nested virtual machine, so that the nested hypervisor's secrets are not
-   exposed to the nested virtual machine;
-
- - Flush the L1D cache on every switch from the nested virtual machine to
-   the nested hypervisor; this is a complex operation, and flushing the L1D
-   cache avoids that the bare metal hypervisor's secrets are exposed to the
-   nested virtual machine;
-
- - Instruct the nested hypervisor to not perform any L1D cache flush. This
-   is an optimization to avoid double L1D flushing.
-
-
-.. _default_mitigations:
-
-Default mitigations
--------------------
-
-  The kernel default mitigations for vulnerable processors are:
-
-  - PTE inversion to protect against malicious user space. This is done
-    unconditionally and cannot be controlled. The swap storage is limited
-    to ~16TB.
-
-  - L1D conditional flushing on VMENTER when EPT is enabled for
-    a guest.
-
-  The kernel does not by default enforce the disabling of SMT, which leaves
-  SMT systems vulnerable when running untrusted guests with EPT enabled.
-
-  The rationale for this choice is:
-
-  - Force disabling SMT can break existing setups, especially with
-    unattended updates.
-
-  - If regular users run untrusted guests on their machine, then L1TF is
-    just an add on to other malware which might be embedded in an untrusted
-    guest, e.g. spam-bots or attacks on the local network.
-
-    There is no technical way to prevent a user from running untrusted code
-    on their machines blindly.
-
-  - It's technically extremely unlikely and from today's knowledge even
-    impossible that L1TF can be exploited via the most popular attack
-    mechanisms like JavaScript because these mechanisms have no way to
-    control PTEs. If this would be possible and not other mitigation would
-    be possible, then the default might be different.
-
-  - The administrators of cloud and hosting setups have to carefully
-    analyze the risk for their scenarios and make the appropriate
-    mitigation choices, which might even vary across their deployed
-    machines and also result in other changes of their overall setup.
-    There is no way for the kernel to provide a sensible default for this
-    kind of scenarios.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/arm64/silicon-errata.txt linux-libre-5.1.21-gnu/Documentation/arm64/silicon-errata.txt
--- linux-libre-5.1-gnu/Documentation/arm64/silicon-errata.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/arm64/silicon-errata.txt	2019-07-28 02:28:39.000000000 -0400
@@ -61,6 +61,7 @@ stable kernels.
 | ARM            | Cortex-A76      | #1188873        | ARM64_ERRATUM_1188873       |
 | ARM            | Cortex-A76      | #1165522        | ARM64_ERRATUM_1165522       |
 | ARM            | Cortex-A76      | #1286807        | ARM64_ERRATUM_1286807       |
+| ARM            | Cortex-A76      | #1463225        | ARM64_ERRATUM_1463225       |
 | ARM            | MMU-500         | #841119,#826419 | N/A                         |
 |                |                 |                 |                             |
 | Cavium         | ThunderX ITS    | #22375, #24313  | CAVIUM_ERRATUM_22375        |
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/atomic_t.txt linux-libre-5.1.21-gnu/Documentation/atomic_t.txt
--- linux-libre-5.1-gnu/Documentation/atomic_t.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/atomic_t.txt	2019-07-28 02:28:39.000000000 -0400
@@ -177,6 +177,9 @@ These helper barriers exist because arch
 ordering on their SMP atomic primitives. For example our TSO architectures
 provide full ordered atomics and these barriers are no-ops.
 
+NOTE: when the atomic RmW ops are fully ordered, they should also imply a
+compiler barrier.
+
 Thus:
 
   atomic_fetch_add();
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/conf.py linux-libre-5.1.21-gnu/Documentation/conf.py
--- linux-libre-5.1-gnu/Documentation/conf.py	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/conf.py	2019-07-28 02:28:39.000000000 -0400
@@ -37,7 +37,7 @@ needs_sphinx = '1.3'
 extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', 'cdomain', 'kfigure', 'sphinx.ext.ifconfig']
 
 # The name of the math extension changed on Sphinx 1.4
-if major == 1 and minor > 3:
+if (major == 1 and minor > 3) or (major > 1):
     extensions.append("sphinx.ext.imgmath")
 else:
     extensions.append("sphinx.ext.pngmath")
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/devicetree/bindings/input/touchscreen/goodix.txt linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
--- linux-libre-5.1-gnu/Documentation/devicetree/bindings/input/touchscreen/goodix.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/input/touchscreen/goodix.txt	2019-07-28 02:28:39.000000000 -0400
@@ -3,6 +3,7 @@ Device tree bindings for Goodix GT9xx se
 Required properties:
 
  - compatible		: Should be "goodix,gt1151"
+				 or "goodix,gt5663"
 				 or "goodix,gt5688"
 				 or "goodix,gt911"
 				 or "goodix,gt9110"
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/devicetree/bindings/mmc/mmc.txt linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/mmc/mmc.txt
--- linux-libre-5.1-gnu/Documentation/devicetree/bindings/mmc/mmc.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/mmc/mmc.txt	2019-07-28 02:28:39.000000000 -0400
@@ -64,6 +64,8 @@ Optional properties:
   whether pwrseq-simple is used. Default to 10ms if no available.
 - supports-cqe : The presence of this property indicates that the corresponding
   MMC host controller supports HW command queue feature.
+- disable-cqe-dcmd: This property indicates that the MMC controller's command
+  queue engine (CQE) does not support direct commands (DCMDs).
 
 *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
 polarity properties, we have to fix the meaning of the "normal" and "inverted"
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt
--- linux-libre-5.1-gnu/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt	2019-07-28 02:28:39.000000000 -0400
@@ -4,6 +4,7 @@ Required properties:
  - compatible: Should be one of the following:
    - "microchip,mcp2510" for MCP2510.
    - "microchip,mcp2515" for MCP2515.
+   - "microchip,mcp25625" for MCP25625.
  - reg: SPI chip select.
  - clocks: The clock feeding the CAN controller.
  - interrupts: Should contain IRQ line for the CAN controller.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
--- linux-libre-5.1-gnu/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt	2019-07-28 02:28:39.000000000 -0400
@@ -16,7 +16,7 @@ Required properties:
 
 Optional properties:
 - interrupts: interrupt line number for the SMI error/done interrupt
-- clocks: phandle for up to three required clocks for the MDIO instance
+- clocks: phandle for up to four required clocks for the MDIO instance
 
 The child nodes of the MDIO driver are the individual PHY devices
 connected to this MDIO bus. They must have a "reg" property given the
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
--- linux-libre-5.1-gnu/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt	2019-07-28 02:28:39.000000000 -0400
@@ -59,7 +59,8 @@ Required properties:
 	   one for each entry in reset-names.
  - reset-names: "phy" for reset of phy block,
 		"common" for phy common block reset,
-		"cfg" for phy's ahb cfg block reset.
+		"cfg" for phy's ahb cfg block reset,
+		"ufsphy" for the PHY reset in the UFS controller.
 
 		For "qcom,ipq8074-qmp-pcie-phy" must contain:
 			"phy", "common".
@@ -74,7 +75,8 @@ Required properties:
 			"phy", "common".
 		For "qcom,sdm845-qmp-usb3-uni-phy" must contain:
 			"phy", "common".
-		For "qcom,sdm845-qmp-ufs-phy": no resets are listed.
+		For "qcom,sdm845-qmp-ufs-phy": must contain:
+			"ufsphy".
 
  - vdda-phy-supply: Phandle to a regulator supply to PHY core block.
  - vdda-pll-supply: Phandle to 1.8V regulator supply to PHY refclk pll block.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/filesystems/porting linux-libre-5.1.21-gnu/Documentation/filesystems/porting
--- linux-libre-5.1-gnu/Documentation/filesystems/porting	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/filesystems/porting	2019-07-28 02:28:39.000000000 -0400
@@ -638,3 +638,8 @@ in your dentry operations instead.
 	inode to d_splice_alias() will also do the right thing (equivalent of
 	d_add(dentry, NULL); return NULL;), so that kind of special cases
 	also doesn't need a separate treatment.
+--
+[mandatory]
+	DCACHE_RCUACCESS is gone; having an RCU delay on dentry freeing is the
+	default.  DCACHE_NORCU opts out, and only d_alloc_pseudo() has any
+	business doing so.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/index.rst linux-libre-5.1.21-gnu/Documentation/index.rst
--- linux-libre-5.1-gnu/Documentation/index.rst	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/index.rst	2019-07-28 02:28:39.000000000 -0400
@@ -102,6 +102,7 @@ implementation.
    :maxdepth: 2
 
    sh/index
+   x86/index
 
 Filesystem Documentation
 ------------------------
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/networking/ip-sysctl.txt linux-libre-5.1.21-gnu/Documentation/networking/ip-sysctl.txt
--- linux-libre-5.1-gnu/Documentation/networking/ip-sysctl.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/networking/ip-sysctl.txt	2019-07-28 02:28:39.000000000 -0400
@@ -250,6 +250,14 @@ tcp_base_mss - INTEGER
 	Path MTU discovery (MTU probing).  If MTU probing is enabled,
 	this is the initial MSS used by the connection.
 
+tcp_min_snd_mss - INTEGER
+	TCP SYN and SYNACK messages usually advertise an ADVMSS option,
+	as described in RFC 1122 and RFC 6691.
+	If this ADVMSS option is smaller than tcp_min_snd_mss,
+	it is silently capped to tcp_min_snd_mss.
+
+	Default : 48 (at least 8 bytes of payload per segment)
+
 tcp_congestion_control - STRING
 	Set the congestion control algorithm to be used for new
 	connections. The algorithm "reno" is always available, but
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/robust-futexes.txt linux-libre-5.1.21-gnu/Documentation/robust-futexes.txt
--- linux-libre-5.1-gnu/Documentation/robust-futexes.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/robust-futexes.txt	2019-07-28 02:28:39.000000000 -0400
@@ -218,5 +218,4 @@ All other architectures should build jus
 the new syscalls yet.
 
 Architectures need to implement the new futex_atomic_cmpxchg_inatomic()
-inline function before writing up the syscalls (that function returns
--ENOSYS right now).
+inline function before writing up the syscalls.
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/scheduler/sched-pelt.c linux-libre-5.1.21-gnu/Documentation/scheduler/sched-pelt.c
--- linux-libre-5.1-gnu/Documentation/scheduler/sched-pelt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/scheduler/sched-pelt.c	2019-07-28 02:28:39.000000000 -0400
@@ -20,7 +20,8 @@ void calc_runnable_avg_yN_inv(void)
 	int i;
 	unsigned int x;
 
-	printf("static const u32 runnable_avg_yN_inv[] = {");
+	/* To silence -Wunused-but-set-variable warnings. */
+	printf("static const u32 runnable_avg_yN_inv[] __maybe_unused = {");
 	for (i = 0; i < HALFLIFE; i++) {
 		x = ((1UL<<32)-1)*pow(y, i);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/sphinx/kerneldoc.py linux-libre-5.1.21-gnu/Documentation/sphinx/kerneldoc.py
--- linux-libre-5.1-gnu/Documentation/sphinx/kerneldoc.py	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/sphinx/kerneldoc.py	2019-07-28 02:28:39.000000000 -0400
@@ -37,7 +37,19 @@ import glob
 from docutils import nodes, statemachine
 from docutils.statemachine import ViewList
 from docutils.parsers.rst import directives, Directive
-from sphinx.ext.autodoc import AutodocReporter
+
+#
+# AutodocReporter is only good up to Sphinx 1.7
+#
+import sphinx
+
+Use_SSI = sphinx.__version__[:3] >= '1.7'
+if Use_SSI:
+    from sphinx.util.docutils import switch_source_input
+else:
+    from sphinx.ext.autodoc import AutodocReporter
+
+import kernellog
 
 __version__  = '1.0'
 
@@ -90,7 +102,8 @@ class KernelDocDirective(Directive):
         cmd += [filename]
 
         try:
-            env.app.verbose('calling kernel-doc \'%s\'' % (" ".join(cmd)))
+            kernellog.verbose(env.app,
+                              'calling kernel-doc \'%s\'' % (" ".join(cmd)))
 
             p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
             out, err = p.communicate()
@@ -100,7 +113,8 @@ class KernelDocDirective(Directive):
             if p.returncode != 0:
                 sys.stderr.write(err)
 
-                env.app.warn('kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
+                kernellog.warn(env.app,
+                               'kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
                 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
             elif env.config.kerneldoc_verbosity > 0:
                 sys.stderr.write(err)
@@ -121,20 +135,28 @@ class KernelDocDirective(Directive):
                     lineoffset += 1
 
             node = nodes.section()
-            buf = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
+            self.do_parse(result, node)
+
+            return node.children
+
+        except Exception as e:  # pylint: disable=W0703
+            kernellog.warn(env.app, 'kernel-doc \'%s\' processing failed with: %s' %
+                           (" ".join(cmd), str(e)))
+            return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
+
+    def do_parse(self, result, node):
+        if Use_SSI:
+            with switch_source_input(self.state, result):
+                self.state.nested_parse(result, 0, node, match_titles=1)
+        else:
+            save = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
             self.state.memo.reporter = AutodocReporter(result, self.state.memo.reporter)
             self.state.memo.title_styles, self.state.memo.section_level = [], 0
             try:
                 self.state.nested_parse(result, 0, node, match_titles=1)
             finally:
-                self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = buf
-
-            return node.children
+                self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = save
 
-        except Exception as e:  # pylint: disable=W0703
-            env.app.warn('kernel-doc \'%s\' processing failed with: %s' %
-                         (" ".join(cmd), str(e)))
-            return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
 
 def setup(app):
     app.add_config_value('kerneldoc_bin', None, 'env')
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/sphinx/kernellog.py linux-libre-5.1.21-gnu/Documentation/sphinx/kernellog.py
--- linux-libre-5.1-gnu/Documentation/sphinx/kernellog.py	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/Documentation/sphinx/kernellog.py	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Sphinx has deprecated its older logging interface, but the replacement
+# only goes back to 1.6.  So here's a wrapper layer to keep around for
+# as long as we support 1.4.
+#
+import sphinx
+
+if sphinx.__version__[:3] >= '1.6':
+    UseLogging = True
+    from sphinx.util import logging
+    logger = logging.getLogger('kerneldoc')
+else:
+    UseLogging = False
+
+def warn(app, message):
+    if UseLogging:
+        logger.warning(message)
+    else:
+        app.warn(message)
+
+def verbose(app, message):
+    if UseLogging:
+        logger.verbose(message)
+    else:
+        app.verbose(message)
+
+
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/sphinx/kfigure.py linux-libre-5.1.21-gnu/Documentation/sphinx/kfigure.py
--- linux-libre-5.1-gnu/Documentation/sphinx/kfigure.py	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/sphinx/kfigure.py	2019-07-28 02:28:39.000000000 -0400
@@ -60,6 +60,8 @@ import sphinx
 from sphinx.util.nodes import clean_astext
 from six import iteritems
 
+import kernellog
+
 PY3 = sys.version_info[0] == 3
 
 if PY3:
@@ -171,20 +173,20 @@ def setupTools(app):
     This function is called once, when the builder is initiated.
     """
     global dot_cmd, convert_cmd   # pylint: disable=W0603
-    app.verbose("kfigure: check installed tools ...")
+    kernellog.verbose(app, "kfigure: check installed tools ...")
 
     dot_cmd = which('dot')
     convert_cmd = which('convert')
 
     if dot_cmd:
-        app.verbose("use dot(1) from: " + dot_cmd)
+        kernellog.verbose(app, "use dot(1) from: " + dot_cmd)
     else:
-        app.warn("dot(1) not found, for better output quality install "
-                 "graphviz from http://www.graphviz.org")
+        kernellog.warn(app, "dot(1) not found, for better output quality install "
+                       "graphviz from http://www.graphviz.org")
     if convert_cmd:
-        app.verbose("use convert(1) from: " + convert_cmd)
+        kernellog.verbose(app, "use convert(1) from: " + convert_cmd)
     else:
-        app.warn(
+        kernellog.warn(app,
             "convert(1) not found, for SVG to PDF conversion install "
             "ImageMagick (https://www.imagemagick.org)")
 
@@ -220,12 +222,13 @@ def convert_image(img_node, translator,
 
     # in kernel builds, use 'make SPHINXOPTS=-v' to see verbose messages
 
-    app.verbose('assert best format for: ' + img_node['uri'])
+    kernellog.verbose(app, 'assert best format for: ' + img_node['uri'])
 
     if in_ext == '.dot':
 
         if not dot_cmd:
-            app.verbose("dot from graphviz not available / include DOT raw.")
+            kernellog.verbose(app,
+                              "dot from graphviz not available / include DOT raw.")
             img_node.replace_self(file2literal(src_fname))
 
         elif translator.builder.format == 'latex':
@@ -252,7 +255,8 @@ def convert_image(img_node, translator,
 
         if translator.builder.format == 'latex':
             if convert_cmd is None:
-                app.verbose("no SVG to PDF conversion available / include SVG raw.")
+                kernellog.verbose(app,
+                                  "no SVG to PDF conversion available / include SVG raw.")
                 img_node.replace_self(file2literal(src_fname))
             else:
                 dst_fname = path.join(translator.builder.outdir, fname + '.pdf')
@@ -265,18 +269,19 @@ def convert_image(img_node, translator,
         _name = dst_fname[len(translator.builder.outdir) + 1:]
 
         if isNewer(dst_fname, src_fname):
-            app.verbose("convert: {out}/%s already exists and is newer" % _name)
+            kernellog.verbose(app,
+                              "convert: {out}/%s already exists and is newer" % _name)
 
         else:
             ok = False
             mkdir(path.dirname(dst_fname))
 
             if in_ext == '.dot':
-                app.verbose('convert DOT to: {out}/' + _name)
+                kernellog.verbose(app, 'convert DOT to: {out}/' + _name)
                 ok = dot2format(app, src_fname, dst_fname)
 
             elif in_ext == '.svg':
-                app.verbose('convert SVG to: {out}/' + _name)
+                kernellog.verbose(app, 'convert SVG to: {out}/' + _name)
                 ok = svg2pdf(app, src_fname, dst_fname)
 
             if not ok:
@@ -305,7 +310,8 @@ def dot2format(app, dot_fname, out_fname
     with open(out_fname, "w") as out:
         exit_code = subprocess.call(cmd, stdout = out)
         if exit_code != 0:
-            app.warn("Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
+            kernellog.warn(app,
+                          "Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
     return bool(exit_code == 0)
 
 def svg2pdf(app, svg_fname, pdf_fname):
@@ -322,7 +328,7 @@ def svg2pdf(app, svg_fname, pdf_fname):
     # use stdout and stderr from parent
     exit_code = subprocess.call(cmd)
     if exit_code != 0:
-        app.warn("Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
+        kernellog.warn(app, "Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
     return bool(exit_code == 0)
 
 
@@ -415,15 +421,15 @@ def visit_kernel_render(self, node):
     app = self.builder.app
     srclang = node.get('srclang')
 
-    app.verbose('visit kernel-render node lang: "%s"' % (srclang))
+    kernellog.verbose(app, 'visit kernel-render node lang: "%s"' % (srclang))
 
     tmp_ext = RENDER_MARKUP_EXT.get(srclang, None)
     if tmp_ext is None:
-        app.warn('kernel-render: "%s" unknown / include raw.' % (srclang))
+        kernellog.warn(app, 'kernel-render: "%s" unknown / include raw.' % (srclang))
         return
 
     if not dot_cmd and tmp_ext == '.dot':
-        app.verbose("dot from graphviz not available / include raw.")
+        kernellog.verbose(app, "dot from graphviz not available / include raw.")
         return
 
     literal_block = node[0]
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/userspace-api/spec_ctrl.rst linux-libre-5.1.21-gnu/Documentation/userspace-api/spec_ctrl.rst
--- linux-libre-5.1-gnu/Documentation/userspace-api/spec_ctrl.rst	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/Documentation/userspace-api/spec_ctrl.rst	2019-07-28 02:28:39.000000000 -0400
@@ -49,6 +49,8 @@ If PR_SPEC_PRCTL is set, then the per-ta
 available. If not set, prctl(PR_SET_SPECULATION_CTRL) for the speculation
 misfeature will fail.
 
+.. _set_spec_ctrl:
+
 PR_SET_SPECULATION_CTRL
 -----------------------
 
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/x86/conf.py linux-libre-5.1.21-gnu/Documentation/x86/conf.py
--- linux-libre-5.1-gnu/Documentation/x86/conf.py	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/Documentation/x86/conf.py	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,10 @@
+# -*- coding: utf-8; mode: python -*-
+
+project = "X86 architecture specific documentation"
+
+tags.add("subproject")
+
+latex_documents = [
+    ('index', 'x86.tex', project,
+     'The kernel development community', 'manual'),
+]
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/x86/index.rst linux-libre-5.1.21-gnu/Documentation/x86/index.rst
--- linux-libre-5.1-gnu/Documentation/x86/index.rst	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/Documentation/x86/index.rst	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,8 @@
+==========================
+x86 architecture specifics
+==========================
+
+.. toctree::
+   :maxdepth: 1
+
+   mds
diff -druNp --no-dereference linux-libre-5.1-gnu/Documentation/x86/mds.rst linux-libre-5.1.21-gnu/Documentation/x86/mds.rst
--- linux-libre-5.1-gnu/Documentation/x86/mds.rst	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/Documentation/x86/mds.rst	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,193 @@
+Microarchitectural Data Sampling (MDS) mitigation
+=================================================
+
+.. _mds:
+
+Overview
+--------
+
+Microarchitectural Data Sampling (MDS) is a family of side channel attacks
+on internal buffers in Intel CPUs. The variants are:
+
+ - Microarchitectural Store Buffer Data Sampling (MSBDS) (CVE-2018-12126)
+ - Microarchitectural Fill Buffer Data Sampling (MFBDS) (CVE-2018-12130)
+ - Microarchitectural Load Port Data Sampling (MLPDS) (CVE-2018-12127)
+ - Microarchitectural Data Sampling Uncacheable Memory (MDSUM) (CVE-2019-11091)
+
+MSBDS leaks Store Buffer Entries which can be speculatively forwarded to a
+dependent load (store-to-load forwarding) as an optimization. The forward
+can also happen to a faulting or assisting load operation for a different
+memory address, which can be exploited under certain conditions. Store
+buffers are partitioned between Hyper-Threads so cross thread forwarding is
+not possible. But if a thread enters or exits a sleep state the store
+buffer is repartitioned which can expose data from one thread to the other.
+
+MFBDS leaks Fill Buffer Entries. Fill buffers are used internally to manage
+L1 miss situations and to hold data which is returned or sent in response
+to a memory or I/O operation. Fill buffers can forward data to a load
+operation and also write data to the cache. When the fill buffer is
+deallocated it can retain the stale data of the preceding operations which
+can then be forwarded to a faulting or assisting load operation, which can
+be exploited under certain conditions. Fill buffers are shared between
+Hyper-Threads so cross thread leakage is possible.
+
+MLPDS leaks Load Port Data. Load ports are used to perform load operations
+from memory or I/O. The received data is then forwarded to the register
+file or a subsequent operation. In some implementations the Load Port can
+contain stale data from a previous operation which can be forwarded to
+faulting or assisting loads under certain conditions, which again can be
+exploited eventually. Load ports are shared between Hyper-Threads so cross
+thread leakage is possible.
+
+MDSUM is a special case of MSBDS, MFBDS and MLPDS. An uncacheable load from
+memory that takes a fault or assist can leave data in a microarchitectural
+structure that may later be observed using one of the same methods used by
+MSBDS, MFBDS or MLPDS.
+
+Exposure assumptions
+--------------------
+
+It is assumed that attack code resides in user space or in a guest with one
+exception. The rationale behind this assumption is that the code construct
+needed for exploiting MDS requires:
+
+ - to control the load to trigger a fault or assist
+
+ - to have a disclosure gadget which exposes the speculatively accessed
+   data for consumption through a side channel.
+
+ - to control the pointer through which the disclosure gadget exposes the
+   data
+
+The existence of such a construct in the kernel cannot be excluded with
+100% certainty, but the complexity involved makes it extremly unlikely.
+
+There is one exception, which is untrusted BPF. The functionality of
+untrusted BPF is limited, but it needs to be thoroughly investigated
+whether it can be used to create such a construct.
+
+
+Mitigation strategy
+-------------------
+
+All variants have the same mitigation strategy at least for the single CPU
+thread case (SMT off): Force the CPU to clear the affected buffers.
+
+This is achieved by using the otherwise unused and obsolete VERW
+instruction in combination with a microcode update. The microcode clears
+the affected CPU buffers when the VERW instruction is executed.
+
+For virtualization there are two ways to achieve CPU buffer
+clearing. Either the modified VERW instruction or via the L1D Flush
+command. The latter is issued when L1TF mitigation is enabled so the extra
+VERW can be avoided. If the CPU is not affected by L1TF then VERW needs to
+be issued.
+
+If the VERW instruction with the supplied segment selector argument is
+executed on a CPU without the microcode update there is no side effect
+other than a small number of pointlessly wasted CPU cycles.
+
+This does not protect against cross Hyper-Thread attacks except for MSBDS
+which is only exploitable cross Hyper-thread when one of the Hyper-Threads
+enters a C-state.
+
+The kernel provides a function to invoke the buffer clearing:
+
+    mds_clear_cpu_buffers()
+
+The mitigation is invoked on kernel/userspace, hypervisor/guest and C-state
+(idle) transitions.
+
+As a special quirk to address virtualization scenarios where the host has
+the microcode updated, but the hypervisor does not (yet) expose the
+MD_CLEAR CPUID bit to guests, the kernel issues the VERW instruction in the
+hope that it might actually clear the buffers. The state is reflected
+accordingly.
+
+According to current knowledge additional mitigations inside the kernel
+itself are not required because the necessary gadgets to expose the leaked
+data cannot be controlled in a way which allows exploitation from malicious
+user space or VM guests.
+
+Kernel internal mitigation modes
+--------------------------------
+
+ ======= ============================================================
+ off      Mitigation is disabled. Either the CPU is not affected or
+          mds=off is supplied on the kernel command line
+
+ full     Mitigation is enabled. CPU is affected and MD_CLEAR is
+          advertised in CPUID.
+
+ vmwerv	  Mitigation is enabled. CPU is affected and MD_CLEAR is not
+	  advertised in CPUID. That is mainly for virtualization
+	  scenarios where the host has the updated microcode but the
+	  hypervisor does not expose MD_CLEAR in CPUID. It's a best
+	  effort approach without guarantee.
+ ======= ============================================================
+
+If the CPU is affected and mds=off is not supplied on the kernel command
+line then the kernel selects the appropriate mitigation mode depending on
+the availability of the MD_CLEAR CPUID bit.
+
+Mitigation points
+-----------------
+
+1. Return to user space
+^^^^^^^^^^^^^^^^^^^^^^^
+
+   When transitioning from kernel to user space the CPU buffers are flushed
+   on affected CPUs when the mitigation is not disabled on the kernel
+   command line. The migitation is enabled through the static key
+   mds_user_clear.
+
+   The mitigation is invoked in prepare_exit_to_usermode() which covers
+   all but one of the kernel to user space transitions.  The exception
+   is when we return from a Non Maskable Interrupt (NMI), which is
+   handled directly in do_nmi().
+
+   (The reason that NMI is special is that prepare_exit_to_usermode() can
+    enable IRQs.  In NMI context, NMIs are blocked, and we don't want to
+    enable IRQs with NMIs blocked.)
+
+
+2. C-State transition
+^^^^^^^^^^^^^^^^^^^^^
+
+   When a CPU goes idle and enters a C-State the CPU buffers need to be
+   cleared on affected CPUs when SMT is active. This addresses the
+   repartitioning of the store buffer when one of the Hyper-Threads enters
+   a C-State.
+
+   When SMT is inactive, i.e. either the CPU does not support it or all
+   sibling threads are offline CPU buffer clearing is not required.
+
+   The idle clearing is enabled on CPUs which are only affected by MSBDS
+   and not by any other MDS variant. The other MDS variants cannot be
+   protected against cross Hyper-Thread attacks because the Fill Buffer and
+   the Load Ports are shared. So on CPUs affected by other variants, the
+   idle clearing would be a window dressing exercise and is therefore not
+   activated.
+
+   The invocation is controlled by the static key mds_idle_clear which is
+   switched depending on the chosen mitigation mode and the SMT state of
+   the system.
+
+   The buffer clear is only invoked before entering the C-State to prevent
+   that stale data from the idling CPU from spilling to the Hyper-Thread
+   sibling after the store buffer got repartitioned and all entries are
+   available to the non idle sibling.
+
+   When coming out of idle the store buffer is partitioned again so each
+   sibling has half of it available. The back from idle CPU could be then
+   speculatively exposed to contents of the sibling. The buffers are
+   flushed either on exit to user space or on VMENTER so malicious code
+   in user space or the guest cannot speculatively access them.
+
+   The mitigation is hooked into all variants of halt()/mwait(), but does
+   not cover the legacy ACPI IO-Port mechanism because the ACPI idle driver
+   has been superseded by the intel_idle driver around 2010 and is
+   preferred on all affected CPUs which are expected to gain the MD_CLEAR
+   functionality in microcode. Aside of that the IO-Port mechanism is a
+   legacy interface which is only used on older systems which are either
+   not affected or do not receive microcode updates anymore.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/acpica/acevents.h linux-libre-5.1.21-gnu/drivers/acpi/acpica/acevents.h
--- linux-libre-5.1-gnu/drivers/acpi/acpica/acevents.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/acpica/acevents.h	2019-07-28 02:28:39.000000000 -0400
@@ -69,7 +69,8 @@ acpi_status
 acpi_ev_mask_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 is_masked);
 
 acpi_status
-acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info);
+acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info,
+			  u8 clear_on_enable);
 
 acpi_status
 acpi_ev_remove_gpe_reference(struct acpi_gpe_event_info *gpe_event_info);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/acpica/evgpeblk.c linux-libre-5.1.21-gnu/drivers/acpi/acpica/evgpeblk.c
--- linux-libre-5.1-gnu/drivers/acpi/acpica/evgpeblk.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/acpica/evgpeblk.c	2019-07-28 02:28:39.000000000 -0400
@@ -453,7 +453,7 @@ acpi_ev_initialize_gpe_block(struct acpi
 				continue;
 			}
 
-			status = acpi_ev_add_gpe_reference(gpe_event_info);
+			status = acpi_ev_add_gpe_reference(gpe_event_info, FALSE);
 			if (ACPI_FAILURE(status)) {
 				ACPI_EXCEPTION((AE_INFO, status,
 					"Could not enable GPE 0x%02X",
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/acpica/evgpe.c linux-libre-5.1.21-gnu/drivers/acpi/acpica/evgpe.c
--- linux-libre-5.1-gnu/drivers/acpi/acpica/evgpe.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/acpica/evgpe.c	2019-07-28 02:28:39.000000000 -0400
@@ -146,6 +146,7 @@ acpi_ev_mask_gpe(struct acpi_gpe_event_i
  * FUNCTION:    acpi_ev_add_gpe_reference
  *
  * PARAMETERS:  gpe_event_info          - Add a reference to this GPE
+ *              clear_on_enable         - Clear GPE status before enabling it
  *
  * RETURN:      Status
  *
@@ -155,7 +156,8 @@ acpi_ev_mask_gpe(struct acpi_gpe_event_i
  ******************************************************************************/
 
 acpi_status
-acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info)
+acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info,
+			  u8 clear_on_enable)
 {
 	acpi_status status = AE_OK;
 
@@ -170,6 +172,10 @@ acpi_ev_add_gpe_reference(struct acpi_gp
 
 		/* Enable on first reference */
 
+		if (clear_on_enable) {
+			(void)acpi_hw_clear_gpe(gpe_event_info);
+		}
+
 		status = acpi_ev_update_gpe_enable_mask(gpe_event_info);
 		if (ACPI_SUCCESS(status)) {
 			status = acpi_ev_enable_gpe(gpe_event_info);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/acpica/evxface.c linux-libre-5.1.21-gnu/drivers/acpi/acpica/evxface.c
--- linux-libre-5.1-gnu/drivers/acpi/acpica/evxface.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/acpica/evxface.c	2019-07-28 02:28:39.000000000 -0400
@@ -971,7 +971,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_
 	      ACPI_GPE_DISPATCH_METHOD) ||
 	     (ACPI_GPE_DISPATCH_TYPE(handler->original_flags) ==
 	      ACPI_GPE_DISPATCH_NOTIFY)) && handler->originally_enabled) {
-		(void)acpi_ev_add_gpe_reference(gpe_event_info);
+		(void)acpi_ev_add_gpe_reference(gpe_event_info, FALSE);
 		if (ACPI_GPE_IS_POLLING_NEEDED(gpe_event_info)) {
 
 			/* Poll edge triggered GPEs to handle existing events */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/acpica/evxfgpe.c linux-libre-5.1.21-gnu/drivers/acpi/acpica/evxfgpe.c
--- linux-libre-5.1-gnu/drivers/acpi/acpica/evxfgpe.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/acpica/evxfgpe.c	2019-07-28 02:28:39.000000000 -0400
@@ -108,7 +108,7 @@ acpi_status acpi_enable_gpe(acpi_handle
 	if (gpe_event_info) {
 		if (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) !=
 		    ACPI_GPE_DISPATCH_NONE) {
-			status = acpi_ev_add_gpe_reference(gpe_event_info);
+			status = acpi_ev_add_gpe_reference(gpe_event_info, TRUE);
 			if (ACPI_SUCCESS(status) &&
 			    ACPI_GPE_IS_POLLING_NEEDED(gpe_event_info)) {
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/acpi_lpss.c linux-libre-5.1.21-gnu/drivers/acpi/acpi_lpss.c
--- linux-libre-5.1-gnu/drivers/acpi/acpi_lpss.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/acpi_lpss.c	2019-07-28 02:28:39.000000000 -0400
@@ -1142,8 +1142,8 @@ static struct dev_pm_domain acpi_lpss_pm
 		.thaw_noirq = acpi_subsys_thaw_noirq,
 		.poweroff = acpi_subsys_suspend,
 		.poweroff_late = acpi_lpss_suspend_late,
-		.poweroff_noirq = acpi_subsys_suspend_noirq,
-		.restore_noirq = acpi_subsys_resume_noirq,
+		.poweroff_noirq = acpi_lpss_suspend_noirq,
+		.restore_noirq = acpi_lpss_resume_noirq,
 		.restore_early = acpi_lpss_resume_early,
 #endif
 		.runtime_suspend = acpi_lpss_runtime_suspend,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/arm64/iort.c linux-libre-5.1.21-gnu/drivers/acpi/arm64/iort.c
--- linux-libre-5.1-gnu/drivers/acpi/arm64/iort.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/arm64/iort.c	2019-07-28 02:28:39.000000000 -0400
@@ -1232,18 +1232,24 @@ static bool __init arm_smmu_v3_is_cohere
 /*
  * set numa proximity domain for smmuv3 device
  */
-static void  __init arm_smmu_v3_set_proximity(struct device *dev,
+static int  __init arm_smmu_v3_set_proximity(struct device *dev,
 					      struct acpi_iort_node *node)
 {
 	struct acpi_iort_smmu_v3 *smmu;
 
 	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
 	if (smmu->flags & ACPI_IORT_SMMU_V3_PXM_VALID) {
-		set_dev_node(dev, acpi_map_pxm_to_node(smmu->pxm));
+		int node = acpi_map_pxm_to_node(smmu->pxm);
+
+		if (node != NUMA_NO_NODE && !node_online(node))
+			return -EINVAL;
+
+		set_dev_node(dev, node);
 		pr_info("SMMU-v3[%llx] Mapped to Proximity domain %d\n",
 			smmu->base_address,
 			smmu->pxm);
 	}
+	return 0;
 }
 #else
 #define arm_smmu_v3_set_proximity NULL
@@ -1318,7 +1324,7 @@ struct iort_dev_config {
 	int (*dev_count_resources)(struct acpi_iort_node *node);
 	void (*dev_init_resources)(struct resource *res,
 				     struct acpi_iort_node *node);
-	void (*dev_set_proximity)(struct device *dev,
+	int (*dev_set_proximity)(struct device *dev,
 				    struct acpi_iort_node *node);
 };
 
@@ -1369,8 +1375,11 @@ static int __init iort_add_platform_devi
 	if (!pdev)
 		return -ENOMEM;
 
-	if (ops->dev_set_proximity)
-		ops->dev_set_proximity(&pdev->dev, node);
+	if (ops->dev_set_proximity) {
+		ret = ops->dev_set_proximity(&pdev->dev, node);
+		if (ret)
+			goto dev_put;
+	}
 
 	count = ops->dev_count_resources(node);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/device_pm.c linux-libre-5.1.21-gnu/drivers/acpi/device_pm.c
--- linux-libre-5.1-gnu/drivers/acpi/device_pm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/device_pm.c	2019-07-28 02:28:39.000000000 -0400
@@ -949,8 +949,8 @@ static bool acpi_dev_needs_resume(struct
 	u32 sys_target = acpi_target_system_state();
 	int ret, state;
 
-	if (!pm_runtime_suspended(dev) || !adev ||
-	    device_may_wakeup(dev) != !!adev->wakeup.prepare_count)
+	if (!pm_runtime_suspended(dev) || !adev || (adev->wakeup.flags.valid &&
+	    device_may_wakeup(dev) != !!adev->wakeup.prepare_count))
 		return true;
 
 	if (sys_target == ACPI_STATE_S0)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/property.c linux-libre-5.1.21-gnu/drivers/acpi/property.c
--- linux-libre-5.1-gnu/drivers/acpi/property.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/property.c	2019-07-28 02:28:39.000000000 -0400
@@ -1031,6 +1031,14 @@ struct fwnode_handle *acpi_get_next_subn
 		const struct acpi_data_node *data = to_acpi_data_node(fwnode);
 		struct acpi_data_node *dn;
 
+		/*
+		 * We can have a combination of device and data nodes, e.g. with
+		 * hierarchical _DSD properties. Make sure the adev pointer is
+		 * restored before going through data nodes, otherwise we will
+		 * be looking for data_nodes below the last device found instead
+		 * of the common fwnode shared by device_nodes and data_nodes.
+		 */
+		adev = to_acpi_device_node(fwnode);
 		if (adev)
 			head = &adev->data.subnodes;
 		else if (data)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/acpi/sleep.c linux-libre-5.1.21-gnu/drivers/acpi/sleep.c
--- linux-libre-5.1-gnu/drivers/acpi/sleep.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/acpi/sleep.c	2019-07-28 02:28:39.000000000 -0400
@@ -977,6 +977,8 @@ static int acpi_s2idle_prepare(void)
 	if (acpi_sci_irq_valid())
 		enable_irq_wake(acpi_sci_irq);
 
+	acpi_enable_wakeup_devices(ACPI_STATE_S0);
+
 	/* Change the configuration of GPEs to avoid spurious wakeup. */
 	acpi_enable_all_wakeup_gpes();
 	acpi_os_wait_events_complete();
@@ -1027,6 +1029,8 @@ static void acpi_s2idle_restore(void)
 {
 	acpi_enable_all_runtime_gpes();
 
+	acpi_disable_wakeup_devices(ACPI_STATE_S0);
+
 	if (acpi_sci_irq_valid())
 		disable_irq_wake(acpi_sci_irq);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/android/binder_alloc.c linux-libre-5.1.21-gnu/drivers/android/binder_alloc.c
--- linux-libre-5.1-gnu/drivers/android/binder_alloc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/android/binder_alloc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1128,15 +1128,16 @@ binder_alloc_copy_user_to_buffer(struct
 	return 0;
 }
 
-static void binder_alloc_do_buffer_copy(struct binder_alloc *alloc,
-					bool to_buffer,
-					struct binder_buffer *buffer,
-					binder_size_t buffer_offset,
-					void *ptr,
-					size_t bytes)
+static int binder_alloc_do_buffer_copy(struct binder_alloc *alloc,
+				       bool to_buffer,
+				       struct binder_buffer *buffer,
+				       binder_size_t buffer_offset,
+				       void *ptr,
+				       size_t bytes)
 {
 	/* All copies must be 32-bit aligned and 32-bit size */
-	BUG_ON(!check_buffer(alloc, buffer, buffer_offset, bytes));
+	if (!check_buffer(alloc, buffer, buffer_offset, bytes))
+		return -EINVAL;
 
 	while (bytes) {
 		unsigned long size;
@@ -1164,25 +1165,26 @@ static void binder_alloc_do_buffer_copy(
 		ptr = ptr + size;
 		buffer_offset += size;
 	}
+	return 0;
 }
 
-void binder_alloc_copy_to_buffer(struct binder_alloc *alloc,
-				 struct binder_buffer *buffer,
-				 binder_size_t buffer_offset,
-				 void *src,
-				 size_t bytes)
+int binder_alloc_copy_to_buffer(struct binder_alloc *alloc,
+				struct binder_buffer *buffer,
+				binder_size_t buffer_offset,
+				void *src,
+				size_t bytes)
 {
-	binder_alloc_do_buffer_copy(alloc, true, buffer, buffer_offset,
-				    src, bytes);
+	return binder_alloc_do_buffer_copy(alloc, true, buffer, buffer_offset,
+					   src, bytes);
 }
 
-void binder_alloc_copy_from_buffer(struct binder_alloc *alloc,
-				   void *dest,
-				   struct binder_buffer *buffer,
-				   binder_size_t buffer_offset,
-				   size_t bytes)
+int binder_alloc_copy_from_buffer(struct binder_alloc *alloc,
+				  void *dest,
+				  struct binder_buffer *buffer,
+				  binder_size_t buffer_offset,
+				  size_t bytes)
 {
-	binder_alloc_do_buffer_copy(alloc, false, buffer, buffer_offset,
-				    dest, bytes);
+	return binder_alloc_do_buffer_copy(alloc, false, buffer, buffer_offset,
+					   dest, bytes);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/android/binder_alloc.h linux-libre-5.1.21-gnu/drivers/android/binder_alloc.h
--- linux-libre-5.1-gnu/drivers/android/binder_alloc.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/android/binder_alloc.h	2019-07-28 02:28:39.000000000 -0400
@@ -168,17 +168,17 @@ binder_alloc_copy_user_to_buffer(struct
 				 const void __user *from,
 				 size_t bytes);
 
-void binder_alloc_copy_to_buffer(struct binder_alloc *alloc,
-				 struct binder_buffer *buffer,
-				 binder_size_t buffer_offset,
-				 void *src,
-				 size_t bytes);
+int binder_alloc_copy_to_buffer(struct binder_alloc *alloc,
+				struct binder_buffer *buffer,
+				binder_size_t buffer_offset,
+				void *src,
+				size_t bytes);
 
-void binder_alloc_copy_from_buffer(struct binder_alloc *alloc,
-				   void *dest,
-				   struct binder_buffer *buffer,
-				   binder_size_t buffer_offset,
-				   size_t bytes);
+int binder_alloc_copy_from_buffer(struct binder_alloc *alloc,
+				  void *dest,
+				  struct binder_buffer *buffer,
+				  binder_size_t buffer_offset,
+				  size_t bytes);
 
 #endif /* _LINUX_BINDER_ALLOC_H */
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/android/binder.c linux-libre-5.1.21-gnu/drivers/android/binder.c
--- linux-libre-5.1-gnu/drivers/android/binder.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/android/binder.c	2019-07-28 02:28:39.000000000 -0400
@@ -1950,8 +1950,18 @@ static void binder_free_txn_fixups(struc
 
 static void binder_free_transaction(struct binder_transaction *t)
 {
-	if (t->buffer)
-		t->buffer->transaction = NULL;
+	struct binder_proc *target_proc = t->to_proc;
+
+	if (target_proc) {
+		binder_inner_proc_lock(target_proc);
+		if (t->buffer)
+			t->buffer->transaction = NULL;
+		binder_inner_proc_unlock(target_proc);
+	}
+	/*
+	 * If the transaction has no target_proc, then
+	 * t->buffer->transaction has already been cleared.
+	 */
 	binder_free_txn_fixups(t);
 	kfree(t);
 	binder_stats_deleted(BINDER_STAT_TRANSACTION);
@@ -2058,10 +2068,9 @@ static size_t binder_get_object(struct b
 
 	read_size = min_t(size_t, sizeof(*object), buffer->data_size - offset);
 	if (offset > buffer->data_size || read_size < sizeof(*hdr) ||
-	    !IS_ALIGNED(offset, sizeof(u32)))
+	    binder_alloc_copy_from_buffer(&proc->alloc, object, buffer,
+					  offset, read_size))
 		return 0;
-	binder_alloc_copy_from_buffer(&proc->alloc, object, buffer,
-				      offset, read_size);
 
 	/* Ok, now see if we read a complete object. */
 	hdr = &object->hdr;
@@ -2130,8 +2139,10 @@ static struct binder_buffer_object *bind
 		return NULL;
 
 	buffer_offset = start_offset + sizeof(binder_size_t) * index;
-	binder_alloc_copy_from_buffer(&proc->alloc, &object_offset,
-				      b, buffer_offset, sizeof(object_offset));
+	if (binder_alloc_copy_from_buffer(&proc->alloc, &object_offset,
+					  b, buffer_offset,
+					  sizeof(object_offset)))
+		return NULL;
 	object_size = binder_get_object(proc, b, object_offset, object);
 	if (!object_size || object->hdr.type != BINDER_TYPE_PTR)
 		return NULL;
@@ -2211,10 +2222,12 @@ static bool binder_validate_fixup(struct
 			return false;
 		last_min_offset = last_bbo->parent_offset + sizeof(uintptr_t);
 		buffer_offset = objects_start_offset +
-			sizeof(binder_size_t) * last_bbo->parent,
-		binder_alloc_copy_from_buffer(&proc->alloc, &last_obj_offset,
-					      b, buffer_offset,
-					      sizeof(last_obj_offset));
+			sizeof(binder_size_t) * last_bbo->parent;
+		if (binder_alloc_copy_from_buffer(&proc->alloc,
+						  &last_obj_offset,
+						  b, buffer_offset,
+						  sizeof(last_obj_offset)))
+			return false;
 	}
 	return (fixup_offset >= last_min_offset);
 }
@@ -2300,15 +2313,15 @@ static void binder_transaction_buffer_re
 	for (buffer_offset = off_start_offset; buffer_offset < off_end_offset;
 	     buffer_offset += sizeof(binder_size_t)) {
 		struct binder_object_header *hdr;
-		size_t object_size;
+		size_t object_size = 0;
 		struct binder_object object;
 		binder_size_t object_offset;
 
-		binder_alloc_copy_from_buffer(&proc->alloc, &object_offset,
-					      buffer, buffer_offset,
-					      sizeof(object_offset));
-		object_size = binder_get_object(proc, buffer,
-						object_offset, &object);
+		if (!binder_alloc_copy_from_buffer(&proc->alloc, &object_offset,
+						   buffer, buffer_offset,
+						   sizeof(object_offset)))
+			object_size = binder_get_object(proc, buffer,
+							object_offset, &object);
 		if (object_size == 0) {
 			pr_err("transaction release %d bad object at offset %lld, size %zd\n",
 			       debug_id, (u64)object_offset, buffer->data_size);
@@ -2431,15 +2444,16 @@ static void binder_transaction_buffer_re
 			for (fd_index = 0; fd_index < fda->num_fds;
 			     fd_index++) {
 				u32 fd;
+				int err;
 				binder_size_t offset = fda_offset +
 					fd_index * sizeof(fd);
 
-				binder_alloc_copy_from_buffer(&proc->alloc,
-							      &fd,
-							      buffer,
-							      offset,
-							      sizeof(fd));
-				binder_deferred_fd_close(fd);
+				err = binder_alloc_copy_from_buffer(
+						&proc->alloc, &fd, buffer,
+						offset, sizeof(fd));
+				WARN_ON(err);
+				if (!err)
+					binder_deferred_fd_close(fd);
 			}
 		} break;
 		default:
@@ -2682,11 +2696,12 @@ static int binder_translate_fd_array(str
 		int ret;
 		binder_size_t offset = fda_offset + fdi * sizeof(fd);
 
-		binder_alloc_copy_from_buffer(&target_proc->alloc,
-					      &fd, t->buffer,
-					      offset, sizeof(fd));
-		ret = binder_translate_fd(fd, offset, t, thread,
-					  in_reply_to);
+		ret = binder_alloc_copy_from_buffer(&target_proc->alloc,
+						    &fd, t->buffer,
+						    offset, sizeof(fd));
+		if (!ret)
+			ret = binder_translate_fd(fd, offset, t, thread,
+						  in_reply_to);
 		if (ret < 0)
 			return ret;
 	}
@@ -2739,8 +2754,12 @@ static int binder_fixup_parent(struct bi
 	}
 	buffer_offset = bp->parent_offset +
 			(uintptr_t)parent->buffer - (uintptr_t)b->user_data;
-	binder_alloc_copy_to_buffer(&target_proc->alloc, b, buffer_offset,
-				    &bp->buffer, sizeof(bp->buffer));
+	if (binder_alloc_copy_to_buffer(&target_proc->alloc, b, buffer_offset,
+					&bp->buffer, sizeof(bp->buffer))) {
+		binder_user_error("%d:%d got transaction with invalid parent offset\n",
+				  proc->pid, thread->pid);
+		return -EINVAL;
+	}
 
 	return 0;
 }
@@ -3150,15 +3169,20 @@ static void binder_transaction(struct bi
 		goto err_binder_alloc_buf_failed;
 	}
 	if (secctx) {
+		int err;
 		size_t buf_offset = ALIGN(tr->data_size, sizeof(void *)) +
 				    ALIGN(tr->offsets_size, sizeof(void *)) +
 				    ALIGN(extra_buffers_size, sizeof(void *)) -
 				    ALIGN(secctx_sz, sizeof(u64));
 
 		t->security_ctx = (uintptr_t)t->buffer->user_data + buf_offset;
-		binder_alloc_copy_to_buffer(&target_proc->alloc,
-					    t->buffer, buf_offset,
-					    secctx, secctx_sz);
+		err = binder_alloc_copy_to_buffer(&target_proc->alloc,
+						  t->buffer, buf_offset,
+						  secctx, secctx_sz);
+		if (err) {
+			t->security_ctx = 0;
+			WARN_ON(1);
+		}
 		security_release_secctx(secctx, secctx_sz);
 		secctx = NULL;
 	}
@@ -3224,11 +3248,16 @@ static void binder_transaction(struct bi
 		struct binder_object object;
 		binder_size_t object_offset;
 
-		binder_alloc_copy_from_buffer(&target_proc->alloc,
-					      &object_offset,
-					      t->buffer,
-					      buffer_offset,
-					      sizeof(object_offset));
+		if (binder_alloc_copy_from_buffer(&target_proc->alloc,
+						  &object_offset,
+						  t->buffer,
+						  buffer_offset,
+						  sizeof(object_offset))) {
+			return_error = BR_FAILED_REPLY;
+			return_error_param = -EINVAL;
+			return_error_line = __LINE__;
+			goto err_bad_offset;
+		}
 		object_size = binder_get_object(target_proc, t->buffer,
 						object_offset, &object);
 		if (object_size == 0 || object_offset < off_min) {
@@ -3252,15 +3281,17 @@ static void binder_transaction(struct bi
 
 			fp = to_flat_binder_object(hdr);
 			ret = binder_translate_binder(fp, t, thread);
-			if (ret < 0) {
+
+			if (ret < 0 ||
+			    binder_alloc_copy_to_buffer(&target_proc->alloc,
+							t->buffer,
+							object_offset,
+							fp, sizeof(*fp))) {
 				return_error = BR_FAILED_REPLY;
 				return_error_param = ret;
 				return_error_line = __LINE__;
 				goto err_translate_failed;
 			}
-			binder_alloc_copy_to_buffer(&target_proc->alloc,
-						    t->buffer, object_offset,
-						    fp, sizeof(*fp));
 		} break;
 		case BINDER_TYPE_HANDLE:
 		case BINDER_TYPE_WEAK_HANDLE: {
@@ -3268,15 +3299,16 @@ static void binder_transaction(struct bi
 
 			fp = to_flat_binder_object(hdr);
 			ret = binder_translate_handle(fp, t, thread);
-			if (ret < 0) {
+			if (ret < 0 ||
+			    binder_alloc_copy_to_buffer(&target_proc->alloc,
+							t->buffer,
+							object_offset,
+							fp, sizeof(*fp))) {
 				return_error = BR_FAILED_REPLY;
 				return_error_param = ret;
 				return_error_line = __LINE__;
 				goto err_translate_failed;
 			}
-			binder_alloc_copy_to_buffer(&target_proc->alloc,
-						    t->buffer, object_offset,
-						    fp, sizeof(*fp));
 		} break;
 
 		case BINDER_TYPE_FD: {
@@ -3286,16 +3318,17 @@ static void binder_transaction(struct bi
 			int ret = binder_translate_fd(fp->fd, fd_offset, t,
 						      thread, in_reply_to);
 
-			if (ret < 0) {
+			fp->pad_binder = 0;
+			if (ret < 0 ||
+			    binder_alloc_copy_to_buffer(&target_proc->alloc,
+							t->buffer,
+							object_offset,
+							fp, sizeof(*fp))) {
 				return_error = BR_FAILED_REPLY;
 				return_error_param = ret;
 				return_error_line = __LINE__;
 				goto err_translate_failed;
 			}
-			fp->pad_binder = 0;
-			binder_alloc_copy_to_buffer(&target_proc->alloc,
-						    t->buffer, object_offset,
-						    fp, sizeof(*fp));
 		} break;
 		case BINDER_TYPE_FDA: {
 			struct binder_object ptr_object;
@@ -3383,15 +3416,16 @@ static void binder_transaction(struct bi
 						  num_valid,
 						  last_fixup_obj_off,
 						  last_fixup_min_off);
-			if (ret < 0) {
+			if (ret < 0 ||
+			    binder_alloc_copy_to_buffer(&target_proc->alloc,
+							t->buffer,
+							object_offset,
+							bp, sizeof(*bp))) {
 				return_error = BR_FAILED_REPLY;
 				return_error_param = ret;
 				return_error_line = __LINE__;
 				goto err_translate_failed;
 			}
-			binder_alloc_copy_to_buffer(&target_proc->alloc,
-						    t->buffer, object_offset,
-						    bp, sizeof(*bp));
 			last_fixup_obj_off = object_offset;
 			last_fixup_min_off = 0;
 		} break;
@@ -3550,10 +3584,12 @@ err_invalid_target_handle:
 static void
 binder_free_buf(struct binder_proc *proc, struct binder_buffer *buffer)
 {
+	binder_inner_proc_lock(proc);
 	if (buffer->transaction) {
 		buffer->transaction->buffer = NULL;
 		buffer->transaction = NULL;
 	}
+	binder_inner_proc_unlock(proc);
 	if (buffer->async_transaction && buffer->target_node) {
 		struct binder_node *buf_node;
 		struct binder_work *w;
@@ -4127,20 +4163,27 @@ static int binder_apply_fd_fixups(struct
 		trace_binder_transaction_fd_recv(t, fd, fixup->offset);
 		fd_install(fd, fixup->file);
 		fixup->file = NULL;
-		binder_alloc_copy_to_buffer(&proc->alloc, t->buffer,
-					    fixup->offset, &fd,
-					    sizeof(u32));
+		if (binder_alloc_copy_to_buffer(&proc->alloc, t->buffer,
+						fixup->offset, &fd,
+						sizeof(u32))) {
+			ret = -EINVAL;
+			break;
+		}
 	}
 	list_for_each_entry_safe(fixup, tmp, &t->fd_fixups, fixup_entry) {
 		if (fixup->file) {
 			fput(fixup->file);
 		} else if (ret) {
 			u32 fd;
+			int err;
 
-			binder_alloc_copy_from_buffer(&proc->alloc, &fd,
-						      t->buffer, fixup->offset,
-						      sizeof(fd));
-			binder_deferred_fd_close(fd);
+			err = binder_alloc_copy_from_buffer(&proc->alloc, &fd,
+							    t->buffer,
+							    fixup->offset,
+							    sizeof(fd));
+			WARN_ON(err);
+			if (!err)
+				binder_deferred_fd_close(fd);
 		}
 		list_del(&fixup->fixup_entry);
 		kfree(fixup);
@@ -4255,6 +4298,8 @@ retry:
 		case BINDER_WORK_TRANSACTION_COMPLETE: {
 			binder_inner_proc_unlock(proc);
 			cmd = BR_TRANSACTION_COMPLETE;
+			kfree(w);
+			binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
 			if (put_user(cmd, (uint32_t __user *)ptr))
 				return -EFAULT;
 			ptr += sizeof(uint32_t);
@@ -4263,8 +4308,6 @@ retry:
 			binder_debug(BINDER_DEBUG_TRANSACTION_COMPLETE,
 				     "%d:%d BR_TRANSACTION_COMPLETE\n",
 				     proc->pid, thread->pid);
-			kfree(w);
-			binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
 		} break;
 		case BINDER_WORK_NODE: {
 			struct binder_node *node = container_of(w, struct binder_node, work);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/ata/libata-core.c linux-libre-5.1.21-gnu/drivers/ata/libata-core.c
--- linux-libre-5.1-gnu/drivers/ata/libata-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/ata/libata-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -4476,9 +4476,12 @@ static const struct ata_blacklist_entry
 	{ "ST3320[68]13AS",	"SD1[5-9]",	ATA_HORKAGE_NONCQ |
 						ATA_HORKAGE_FIRMWARE_WARN },
 
-	/* drives which fail FPDMA_AA activation (some may freeze afterwards) */
-	{ "ST1000LM024 HN-M101MBB", "2AR10001",	ATA_HORKAGE_BROKEN_FPDMA_AA },
-	{ "ST1000LM024 HN-M101MBB", "2BA30001",	ATA_HORKAGE_BROKEN_FPDMA_AA },
+	/* drives which fail FPDMA_AA activation (some may freeze afterwards)
+	   the ST disks also have LPM issues */
+	{ "ST1000LM024 HN-M101MBB", "2AR10001",	ATA_HORKAGE_BROKEN_FPDMA_AA |
+						ATA_HORKAGE_NOLPM, },
+	{ "ST1000LM024 HN-M101MBB", "2BA30001",	ATA_HORKAGE_BROKEN_FPDMA_AA |
+						ATA_HORKAGE_NOLPM, },
 	{ "VB0250EAVER",	"HPG7",		ATA_HORKAGE_BROKEN_FPDMA_AA },
 
 	/* Blacklist entries taken from Silicon Image 3124/3132
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/ata/libata-eh.c linux-libre-5.1.21-gnu/drivers/ata/libata-eh.c
--- linux-libre-5.1-gnu/drivers/ata/libata-eh.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/ata/libata-eh.c	2019-07-28 02:28:39.000000000 -0400
@@ -1486,7 +1486,7 @@ static int ata_eh_read_log_10h(struct at
 	tf->hob_lbah = buf[10];
 	tf->nsect = buf[12];
 	tf->hob_nsect = buf[13];
-	if (ata_id_has_ncq_autosense(dev->id))
+	if (dev->class == ATA_DEV_ZAC && ata_id_has_ncq_autosense(dev->id))
 		tf->auxiliary = buf[14] << 16 | buf[15] << 8 | buf[16];
 
 	return 0;
@@ -1733,7 +1733,8 @@ void ata_eh_analyze_ncq_error(struct ata
 	memcpy(&qc->result_tf, &tf, sizeof(tf));
 	qc->result_tf.flags = ATA_TFLAG_ISADDR | ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
 	qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ;
-	if ((qc->result_tf.command & ATA_SENSE) || qc->result_tf.auxiliary) {
+	if (dev->class == ATA_DEV_ZAC &&
+	    ((qc->result_tf.command & ATA_SENSE) || qc->result_tf.auxiliary)) {
 		char sense_key, asc, ascq;
 
 		sense_key = (qc->result_tf.auxiliary >> 16) & 0xff;
@@ -1787,10 +1788,11 @@ static unsigned int ata_eh_analyze_tf(st
 	}
 
 	switch (qc->dev->class) {
-	case ATA_DEV_ATA:
 	case ATA_DEV_ZAC:
 		if (stat & ATA_SENSE)
 			ata_eh_request_sense(qc, qc->scsicmd);
+		/* fall through */
+	case ATA_DEV_ATA:
 		if (err & ATA_ICRC)
 			qc->err_mask |= AC_ERR_ATA_BUS;
 		if (err & (ATA_UNC | ATA_AMNF))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/base/cacheinfo.c linux-libre-5.1.21-gnu/drivers/base/cacheinfo.c
--- linux-libre-5.1-gnu/drivers/base/cacheinfo.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/base/cacheinfo.c	2019-07-28 02:28:39.000000000 -0400
@@ -655,7 +655,8 @@ static int cacheinfo_cpu_pre_down(unsign
 
 static int __init cacheinfo_sysfs_init(void)
 {
-	return cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "base/cacheinfo:online",
+	return cpuhp_setup_state(CPUHP_AP_BASE_CACHEINFO_ONLINE,
+				 "base/cacheinfo:online",
 				 cacheinfo_cpu_online, cacheinfo_cpu_pre_down);
 }
 device_initcall(cacheinfo_sysfs_init);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/base/cpu.c linux-libre-5.1.21-gnu/drivers/base/cpu.c
--- linux-libre-5.1-gnu/drivers/base/cpu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/base/cpu.c	2019-07-28 02:28:39.000000000 -0400
@@ -548,11 +548,18 @@ ssize_t __weak cpu_show_l1tf(struct devi
 	return sprintf(buf, "Not affected\n");
 }
 
+ssize_t __weak cpu_show_mds(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "Not affected\n");
+}
+
 static DEVICE_ATTR(meltdown, 0444, cpu_show_meltdown, NULL);
 static DEVICE_ATTR(spectre_v1, 0444, cpu_show_spectre_v1, NULL);
 static DEVICE_ATTR(spectre_v2, 0444, cpu_show_spectre_v2, NULL);
 static DEVICE_ATTR(spec_store_bypass, 0444, cpu_show_spec_store_bypass, NULL);
 static DEVICE_ATTR(l1tf, 0444, cpu_show_l1tf, NULL);
+static DEVICE_ATTR(mds, 0444, cpu_show_mds, NULL);
 
 static struct attribute *cpu_root_vulnerabilities_attrs[] = {
 	&dev_attr_meltdown.attr,
@@ -560,6 +567,7 @@ static struct attribute *cpu_root_vulner
 	&dev_attr_spectre_v2.attr,
 	&dev_attr_spec_store_bypass.attr,
 	&dev_attr_l1tf.attr,
+	&dev_attr_mds.attr,
 	NULL
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/base/dd.c linux-libre-5.1.21-gnu/drivers/base/dd.c
--- linux-libre-5.1-gnu/drivers/base/dd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/base/dd.c	2019-07-28 02:28:39.000000000 -0400
@@ -490,7 +490,7 @@ re_probe:
 	if (dev->bus->dma_configure) {
 		ret = dev->bus->dma_configure(dev);
 		if (ret)
-			goto dma_failed;
+			goto probe_failed;
 	}
 
 	if (driver_sysfs_add(dev)) {
@@ -546,14 +546,13 @@ re_probe:
 	goto done;
 
 probe_failed:
-	arch_teardown_dma_ops(dev);
-dma_failed:
 	if (dev->bus)
 		blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
 					     BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
 pinctrl_bind_failed:
 	device_links_no_driver(dev);
 	devres_release_all(dev);
+	arch_teardown_dma_ops(dev);
 	driver_sysfs_remove(dev);
 	dev->driver = NULL;
 	dev_set_drvdata(dev, NULL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/base/firmware_loader/fallback.c linux-libre-5.1.21-gnu/drivers/base/firmware_loader/fallback.c
--- linux-libre-5.1-gnu/drivers/base/firmware_loader/fallback.c	2019-05-05 21:18:30.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/base/firmware_loader/fallback.c	2019-07-28 13:19:36.000000000 -0400
@@ -659,7 +659,7 @@ static bool fw_run_sysfs_fallback(enum f
 	/* Also permit LSMs and IMA to fail firmware sysfs fallback */
 	ret = security_kernel_load_data(LOADING_FIRMWARE);
 	if (ret < 0)
-		return ret;
+		return false;
 
 	return fw_force_sysfs_fallback(opt_flags);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/base/power/main.c linux-libre-5.1.21-gnu/drivers/base/power/main.c
--- linux-libre-5.1-gnu/drivers/base/power/main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/base/power/main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1747,6 +1747,10 @@ static int __device_suspend(struct devic
 	if (dev->power.syscore)
 		goto Complete;
 
+	/* Avoid direct_complete to let wakeup_path propagate. */
+	if (device_may_wakeup(dev) || dev->power.wakeup_path)
+		dev->power.direct_complete = false;
+
 	if (dev->power.direct_complete) {
 		if (pm_runtime_status_suspended(dev)) {
 			pm_runtime_disable(dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/base/regmap/regmap.c linux-libre-5.1.21-gnu/drivers/base/regmap/regmap.c
--- linux-libre-5.1-gnu/drivers/base/regmap/regmap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/base/regmap/regmap.c	2019-07-28 02:28:39.000000000 -0400
@@ -1642,6 +1642,8 @@ static int _regmap_raw_write_impl(struct
 					     map->format.reg_bytes +
 					     map->format.pad_bytes,
 					     val, val_len);
+	else
+		ret = -ENOTSUPP;
 
 	/* If that didn't work fall back on linearising by hand. */
 	if (ret == -ENOTSUPP) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/base/regmap/regmap-debugfs.c linux-libre-5.1.21-gnu/drivers/base/regmap/regmap-debugfs.c
--- linux-libre-5.1-gnu/drivers/base/regmap/regmap-debugfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/base/regmap/regmap-debugfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -565,6 +565,8 @@ void regmap_debugfs_init(struct regmap *
 	}
 
 	if (!strcmp(name, "dummy")) {
+		kfree(map->debugfs_name);
+
 		map->debugfs_name = kasprintf(GFP_KERNEL, "dummy%d",
 						dummy_index);
 		name = map->debugfs_name;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/block/brd.c linux-libre-5.1.21-gnu/drivers/block/brd.c
--- linux-libre-5.1-gnu/drivers/block/brd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/block/brd.c	2019-07-28 02:28:39.000000000 -0400
@@ -96,13 +96,8 @@ static struct page *brd_insert_page(stru
 	/*
 	 * Must use NOIO because we don't want to recurse back into the
 	 * block or filesystem layers from page reclaim.
-	 *
-	 * Cannot support DAX and highmem, because our ->direct_access
-	 * routine for DAX must return memory that is always addressable.
-	 * If DAX was reworked to use pfns and kmap throughout, this
-	 * restriction might be able to be lifted.
 	 */
-	gfp_flags = GFP_NOIO | __GFP_ZERO;
+	gfp_flags = GFP_NOIO | __GFP_ZERO | __GFP_HIGHMEM;
 	page = alloc_page(gfp_flags);
 	if (!page)
 		return NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/block/floppy.c linux-libre-5.1.21-gnu/drivers/block/floppy.c
--- linux-libre-5.1-gnu/drivers/block/floppy.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/block/floppy.c	2019-07-28 02:28:39.000000000 -0400
@@ -2119,6 +2119,9 @@ static void setup_format_params(int trac
 	raw_cmd->kernel_data = floppy_track_buffer;
 	raw_cmd->length = 4 * F_SECT_PER_TRACK;
 
+	if (!F_SECT_PER_TRACK)
+		return;
+
 	/* allow for about 30ms for data transport per track */
 	head_shift = (F_SECT_PER_TRACK + 5) / 6;
 
@@ -3229,8 +3232,12 @@ static int set_geometry(unsigned int cmd
 	int cnt;
 
 	/* sanity checking for parameters. */
-	if (g->sect <= 0 ||
-	    g->head <= 0 ||
+	if ((int)g->sect <= 0 ||
+	    (int)g->head <= 0 ||
+	    /* check for overflow in max_sector */
+	    (int)(g->sect * g->head) <= 0 ||
+	    /* check for zero in F_SECT_PER_TRACK */
+	    (unsigned char)((g->sect << 2) >> FD_SIZECODE(g)) == 0 ||
 	    g->track <= 0 || g->track > UDP->tracks >> STRETCH(g) ||
 	    /* check if reserved bits are set */
 	    (g->stretch & ~(FD_STRETCH | FD_SWAPSIDES | FD_SECTBASEMASK)) != 0)
@@ -3374,6 +3381,24 @@ static int fd_getgeo(struct block_device
 	return 0;
 }
 
+static bool valid_floppy_drive_params(const short autodetect[8],
+		int native_format)
+{
+	size_t floppy_type_size = ARRAY_SIZE(floppy_type);
+	size_t i = 0;
+
+	for (i = 0; i < 8; ++i) {
+		if (autodetect[i] < 0 ||
+		    autodetect[i] >= floppy_type_size)
+			return false;
+	}
+
+	if (native_format < 0 || native_format >= floppy_type_size)
+		return false;
+
+	return true;
+}
+
 static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 		    unsigned long param)
 {
@@ -3500,6 +3525,9 @@ static int fd_locked_ioctl(struct block_
 		SUPBOUND(size, strlen((const char *)outparam) + 1);
 		break;
 	case FDSETDRVPRM:
+		if (!valid_floppy_drive_params(inparam.dp.autodetect,
+				inparam.dp.native_format))
+			return -EINVAL;
 		*UDP = inparam.dp;
 		break;
 	case FDGETDRVPRM:
@@ -3697,6 +3725,8 @@ static int compat_setdrvprm(int drive,
 		return -EPERM;
 	if (copy_from_user(&v, arg, sizeof(struct compat_floppy_drive_params)))
 		return -EFAULT;
+	if (!valid_floppy_drive_params(v.autodetect, v.native_format))
+		return -EINVAL;
 	mutex_lock(&floppy_mutex);
 	UDP->cmos = v.cmos;
 	UDP->max_dtr = v.max_dtr;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/block/null_blk_main.c linux-libre-5.1.21-gnu/drivers/block/null_blk_main.c
--- linux-libre-5.1-gnu/drivers/block/null_blk_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/block/null_blk_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -326,11 +326,12 @@ static ssize_t nullb_device_power_store(
 		set_bit(NULLB_DEV_FL_CONFIGURED, &dev->flags);
 		dev->power = newp;
 	} else if (dev->power && !newp) {
-		mutex_lock(&lock);
-		dev->power = newp;
-		null_del_dev(dev->nullb);
-		mutex_unlock(&lock);
-		clear_bit(NULLB_DEV_FL_UP, &dev->flags);
+		if (test_and_clear_bit(NULLB_DEV_FL_UP, &dev->flags)) {
+			mutex_lock(&lock);
+			dev->power = newp;
+			null_del_dev(dev->nullb);
+			mutex_unlock(&lock);
+		}
 		clear_bit(NULLB_DEV_FL_CONFIGURED, &dev->flags);
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/block/xen-blkfront.c linux-libre-5.1.21-gnu/drivers/block/xen-blkfront.c
--- linux-libre-5.1-gnu/drivers/block/xen-blkfront.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/block/xen-blkfront.c	2019-07-28 02:28:39.000000000 -0400
@@ -1310,11 +1310,11 @@ static void blkif_free_ring(struct blkfr
 		}
 
 free_shadow:
-		kfree(rinfo->shadow[i].grants_used);
+		kvfree(rinfo->shadow[i].grants_used);
 		rinfo->shadow[i].grants_used = NULL;
-		kfree(rinfo->shadow[i].indirect_grants);
+		kvfree(rinfo->shadow[i].indirect_grants);
 		rinfo->shadow[i].indirect_grants = NULL;
-		kfree(rinfo->shadow[i].sg);
+		kvfree(rinfo->shadow[i].sg);
 		rinfo->shadow[i].sg = NULL;
 	}
 
@@ -1353,7 +1353,7 @@ static void blkif_free(struct blkfront_i
 	for (i = 0; i < info->nr_rings; i++)
 		blkif_free_ring(&info->rinfo[i]);
 
-	kfree(info->rinfo);
+	kvfree(info->rinfo);
 	info->rinfo = NULL;
 	info->nr_rings = 0;
 }
@@ -1914,9 +1914,9 @@ static int negotiate_mq(struct blkfront_
 	if (!info->nr_rings)
 		info->nr_rings = 1;
 
-	info->rinfo = kcalloc(info->nr_rings,
-			      sizeof(struct blkfront_ring_info),
-			      GFP_KERNEL);
+	info->rinfo = kvcalloc(info->nr_rings,
+			       sizeof(struct blkfront_ring_info),
+			       GFP_KERNEL);
 	if (!info->rinfo) {
 		xenbus_dev_fatal(info->xbdev, -ENOMEM, "allocating ring_info structure");
 		info->nr_rings = 0;
@@ -2232,17 +2232,17 @@ static int blkfront_setup_indirect(struc
 
 	for (i = 0; i < BLK_RING_SIZE(info); i++) {
 		rinfo->shadow[i].grants_used =
-			kcalloc(grants,
-				sizeof(rinfo->shadow[i].grants_used[0]),
-				GFP_NOIO);
-		rinfo->shadow[i].sg = kcalloc(psegs,
-					      sizeof(rinfo->shadow[i].sg[0]),
-					      GFP_NOIO);
+			kvcalloc(grants,
+				 sizeof(rinfo->shadow[i].grants_used[0]),
+				 GFP_NOIO);
+		rinfo->shadow[i].sg = kvcalloc(psegs,
+					       sizeof(rinfo->shadow[i].sg[0]),
+					       GFP_NOIO);
 		if (info->max_indirect_segments)
 			rinfo->shadow[i].indirect_grants =
-				kcalloc(INDIRECT_GREFS(grants),
-					sizeof(rinfo->shadow[i].indirect_grants[0]),
-					GFP_NOIO);
+				kvcalloc(INDIRECT_GREFS(grants),
+					 sizeof(rinfo->shadow[i].indirect_grants[0]),
+					 GFP_NOIO);
 		if ((rinfo->shadow[i].grants_used == NULL) ||
 			(rinfo->shadow[i].sg == NULL) ||
 		     (info->max_indirect_segments &&
@@ -2256,11 +2256,11 @@ static int blkfront_setup_indirect(struc
 
 out_of_memory:
 	for (i = 0; i < BLK_RING_SIZE(info); i++) {
-		kfree(rinfo->shadow[i].grants_used);
+		kvfree(rinfo->shadow[i].grants_used);
 		rinfo->shadow[i].grants_used = NULL;
-		kfree(rinfo->shadow[i].sg);
+		kvfree(rinfo->shadow[i].sg);
 		rinfo->shadow[i].sg = NULL;
-		kfree(rinfo->shadow[i].indirect_grants);
+		kvfree(rinfo->shadow[i].indirect_grants);
 		rinfo->shadow[i].indirect_grants = NULL;
 	}
 	if (!list_empty(&rinfo->indirect_pages)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/bluetooth/btbcm.c linux-libre-5.1.21-gnu/drivers/bluetooth/btbcm.c
--- linux-libre-5.1-gnu/drivers/bluetooth/btbcm.c	2019-05-05 21:40:43.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/bluetooth/btbcm.c	2019-07-28 13:44:24.000000000 -0400
@@ -37,6 +37,7 @@
 #define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
 #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
 #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
+#define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})
 
 int btbcm_check_bdaddr(struct hci_dev *hdev)
 {
@@ -82,7 +83,8 @@ int btbcm_check_bdaddr(struct hci_dev *h
 	    !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
 	    !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||
-	    !bacmp(&bda->bdaddr, BDADDR_BCM43430A0)) {
+	    !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
+	    !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
 		bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
 			    &bda->bdaddr);
 		set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/bluetooth/btmtkuart.c linux-libre-5.1.21-gnu/drivers/bluetooth/btmtkuart.c
--- linux-libre-5.1-gnu/drivers/bluetooth/btmtkuart.c	2019-05-05 21:41:25.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/bluetooth/btmtkuart.c	2019-07-28 13:45:14.000000000 -0400
@@ -661,7 +661,7 @@ static int btmtkuart_change_baudrate(str
 {
 	struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
 	struct btmtk_hci_wmt_params wmt_params;
-	u32 baudrate;
+	__le32 baudrate;
 	u8 param;
 	int err;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/bluetooth/btusb.c linux-libre-5.1.21-gnu/drivers/bluetooth/btusb.c
--- linux-libre-5.1-gnu/drivers/bluetooth/btusb.c	2019-05-05 21:41:10.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/bluetooth/btusb.c	2019-07-28 13:44:58.000000000 -0400
@@ -279,7 +279,9 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
 	{ USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
 	{ USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
+	{ USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
 	{ USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
+	{ USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
 
 	/* Broadcom BCM2035 */
 	{ USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/bluetooth/hci_bcm.c linux-libre-5.1.21-gnu/drivers/bluetooth/hci_bcm.c
--- linux-libre-5.1-gnu/drivers/bluetooth/hci_bcm.c	2019-05-05 21:40:49.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/bluetooth/hci_bcm.c	2019-07-28 13:44:34.000000000 -0400
@@ -228,9 +228,15 @@ static int bcm_gpio_set_power(struct bcm
 	int err;
 
 	if (powered && !dev->res_enabled) {
-		err = regulator_bulk_enable(BCM_NUM_SUPPLIES, dev->supplies);
-		if (err)
-			return err;
+		/* Intel Macs use bcm_apple_get_resources() and don't
+		 * have regulator supplies configured.
+		 */
+		if (dev->supplies[0].supply) {
+			err = regulator_bulk_enable(BCM_NUM_SUPPLIES,
+						    dev->supplies);
+			if (err)
+				return err;
+		}
 
 		/* LPO clock needs to be 32.768 kHz */
 		err = clk_set_rate(dev->lpo_clk, 32768);
@@ -259,7 +265,13 @@ static int bcm_gpio_set_power(struct bcm
 	if (!powered && dev->res_enabled) {
 		clk_disable_unprepare(dev->txco_clk);
 		clk_disable_unprepare(dev->lpo_clk);
-		regulator_bulk_disable(BCM_NUM_SUPPLIES, dev->supplies);
+
+		/* Intel Macs use bcm_apple_get_resources() and don't
+		 * have regulator supplies configured.
+		 */
+		if (dev->supplies[0].supply)
+			regulator_bulk_disable(BCM_NUM_SUPPLIES,
+					       dev->supplies);
 	}
 
 	/* wait for device to power on and come out of reset */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/bluetooth/hci_bcsp.c linux-libre-5.1.21-gnu/drivers/bluetooth/hci_bcsp.c
--- linux-libre-5.1-gnu/drivers/bluetooth/hci_bcsp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/bluetooth/hci_bcsp.c	2019-07-28 02:28:39.000000000 -0400
@@ -759,6 +759,11 @@ static int bcsp_close(struct hci_uart *h
 	skb_queue_purge(&bcsp->rel);
 	skb_queue_purge(&bcsp->unrel);
 
+	if (bcsp->rx_skb) {
+		kfree_skb(bcsp->rx_skb);
+		bcsp->rx_skb = NULL;
+	}
+
 	kfree(bcsp);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/bluetooth/hci_qca.c linux-libre-5.1.21-gnu/drivers/bluetooth/hci_qca.c
--- linux-libre-5.1-gnu/drivers/bluetooth/hci_qca.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/bluetooth/hci_qca.c	2019-07-28 02:28:39.000000000 -0400
@@ -508,6 +508,8 @@ static int qca_open(struct hci_uart *hu)
 		qcadev = serdev_device_get_drvdata(hu->serdev);
 		if (qcadev->btsoc_type != QCA_WCN3990) {
 			gpiod_set_value_cansleep(qcadev->bt_en, 1);
+			/* Controller needs time to bootup. */
+			msleep(150);
 		} else {
 			hu->init_speed = qcadev->init_speed;
 			hu->oper_speed = qcadev->oper_speed;
@@ -992,7 +994,8 @@ static int qca_set_baudrate(struct hci_d
 	while (!skb_queue_empty(&qca->txq))
 		usleep_range(100, 200);
 
-	serdev_device_wait_until_sent(hu->serdev,
+	if (hu->serdev)
+		serdev_device_wait_until_sent(hu->serdev,
 		      msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
 
 	/* Give the controller time to process the request */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/hw_random/omap-rng.c linux-libre-5.1.21-gnu/drivers/char/hw_random/omap-rng.c
--- linux-libre-5.1-gnu/drivers/char/hw_random/omap-rng.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/hw_random/omap-rng.c	2019-07-28 02:28:39.000000000 -0400
@@ -443,6 +443,7 @@ static int omap_rng_probe(struct platfor
 	priv->rng.read = omap_rng_do_read;
 	priv->rng.init = omap_rng_init;
 	priv->rng.cleanup = omap_rng_cleanup;
+	priv->rng.quality = 900;
 
 	priv->rng.priv = (unsigned long)priv;
 	platform_set_drvdata(pdev, priv);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_dmi.c linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_dmi.c
--- linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_dmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_dmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -47,9 +47,11 @@ static void __init dmi_add_platform_ipmi
 	memset(&p, 0, sizeof(p));
 
 	name = "dmi-ipmi-si";
+	p.iftype = IPMI_PLAT_IF_SI;
 	switch (type) {
 	case IPMI_DMI_TYPE_SSIF:
 		name = "dmi-ipmi-ssif";
+		p.iftype = IPMI_PLAT_IF_SSIF;
 		p.type = SI_TYPE_INVALID;
 		break;
 	case IPMI_DMI_TYPE_BT:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_plat_data.c linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_plat_data.c
--- linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_plat_data.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_plat_data.c	2019-07-28 02:28:39.000000000 -0400
@@ -12,7 +12,7 @@ struct platform_device *ipmi_platform_ad
 					  struct ipmi_plat_data *p)
 {
 	struct platform_device *pdev;
-	unsigned int num_r = 1, size, pidx = 0;
+	unsigned int num_r = 1, size = 0, pidx = 0;
 	struct resource r[4];
 	struct property_entry pr[6];
 	u32 flags;
@@ -21,19 +21,22 @@ struct platform_device *ipmi_platform_ad
 	memset(pr, 0, sizeof(pr));
 	memset(r, 0, sizeof(r));
 
-	if (p->type == SI_BT)
-		size = 3;
-	else if (p->type == SI_TYPE_INVALID)
-		size = 0;
-	else
-		size = 2;
+	if (p->iftype == IPMI_PLAT_IF_SI) {
+		if (p->type == SI_BT)
+			size = 3;
+		else if (p->type != SI_TYPE_INVALID)
+			size = 2;
 
-	if (p->regsize == 0)
-		p->regsize = DEFAULT_REGSIZE;
-	if (p->regspacing == 0)
-		p->regspacing = p->regsize;
+		if (p->regsize == 0)
+			p->regsize = DEFAULT_REGSIZE;
+		if (p->regspacing == 0)
+			p->regspacing = p->regsize;
+
+		pr[pidx++] = PROPERTY_ENTRY_U8("ipmi-type", p->type);
+	} else if (p->iftype == IPMI_PLAT_IF_SSIF) {
+		pr[pidx++] = PROPERTY_ENTRY_U16("i2c-addr", p->addr);
+	}
 
-	pr[pidx++] = PROPERTY_ENTRY_U8("ipmi-type", p->type);
 	if (p->slave_addr)
 		pr[pidx++] = PROPERTY_ENTRY_U8("slave-addr", p->slave_addr);
 	pr[pidx++] = PROPERTY_ENTRY_U8("addr-source", p->addr_source);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_plat_data.h linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_plat_data.h
--- linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_plat_data.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_plat_data.h	2019-07-28 02:28:39.000000000 -0400
@@ -6,7 +6,10 @@
 
 #include <linux/ipmi.h>
 
+enum ipmi_plat_interface_type { IPMI_PLAT_IF_SI, IPMI_PLAT_IF_SSIF };
+
 struct ipmi_plat_data {
+	enum ipmi_plat_interface_type iftype;
 	unsigned int type; /* si_type for si, SI_INVALID for others */
 	unsigned int space; /* addr_space for si, intf# for ssif. */
 	unsigned long addr;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_si_hardcode.c linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_si_hardcode.c
--- linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_si_hardcode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_si_hardcode.c	2019-07-28 02:28:39.000000000 -0400
@@ -83,6 +83,7 @@ static void __init ipmi_hardcode_init_on
 
 	memset(&p, 0, sizeof(p));
 
+	p.iftype = IPMI_PLAT_IF_SI;
 	if (!si_type_str || !*si_type_str || strcmp(si_type_str, "kcs") == 0) {
 		p.type = SI_KCS;
 	} else if (strcmp(si_type_str, "smic") == 0) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_si_hotmod.c linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_si_hotmod.c
--- linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_si_hotmod.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_si_hotmod.c	2019-07-28 02:28:39.000000000 -0400
@@ -108,6 +108,7 @@ static int parse_hotmod_str(const char *
 	int rv;
 	unsigned int ival;
 
+	h->iftype = IPMI_PLAT_IF_SI;
 	rv = parse_str(hotmod_ops, &ival, "operation", &curr);
 	if (rv)
 		return rv;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_ssif.c linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_ssif.c
--- linux-libre-5.1-gnu/drivers/char/ipmi/ipmi_ssif.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/ipmi/ipmi_ssif.c	2019-07-28 02:28:39.000000000 -0400
@@ -727,12 +727,16 @@ static void msg_done_handler(struct ssif
 			/* End of read */
 			len = ssif_info->multi_len;
 			data = ssif_info->data;
-		} else if (blocknum != ssif_info->multi_pos) {
+		} else if (blocknum + 1 != ssif_info->multi_pos) {
 			/*
 			 * Out of sequence block, just abort.  Block
 			 * numbers start at zero for the second block,
 			 * but multi_pos starts at one, so the +1.
 			 */
+			if (ssif_info->ssif_debug & SSIF_DEBUG_MSG)
+				dev_dbg(&ssif_info->client->dev,
+					"Received message out of sequence, expected %u, got %u\n",
+					ssif_info->multi_pos - 1, blocknum);
 			result = -EIO;
 		} else {
 			ssif_inc_stat(ssif_info, received_message_parts);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/random.c linux-libre-5.1.21-gnu/drivers/char/random.c
--- linux-libre-5.1-gnu/drivers/char/random.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/random.c	2019-07-28 02:28:39.000000000 -0400
@@ -777,6 +777,7 @@ static struct crng_state **crng_node_poo
 #endif
 
 static void invalidate_batched_entropy(void);
+static void numa_crng_init(void);
 
 static bool trust_cpu __ro_after_init = IS_ENABLED(CONFIG_RANDOM_TRUST_CPU);
 static int __init parse_trust_cpu(char *arg)
@@ -805,7 +806,9 @@ static void crng_initialize(struct crng_
 		}
 		crng->state[i] ^= rv;
 	}
-	if (trust_cpu && arch_init) {
+	if (trust_cpu && arch_init && crng == &primary_crng) {
+		invalidate_batched_entropy();
+		numa_crng_init();
 		crng_init = 2;
 		pr_notice("random: crng done (trusting CPU's manufacturer)\n");
 	}
@@ -2211,8 +2214,8 @@ struct batched_entropy {
 		u32 entropy_u32[CHACHA_BLOCK_SIZE / sizeof(u32)];
 	};
 	unsigned int position;
+	spinlock_t batch_lock;
 };
-static rwlock_t batched_entropy_reset_lock = __RW_LOCK_UNLOCKED(batched_entropy_reset_lock);
 
 /*
  * Get a random word for internal kernel use only. The quality of the random
@@ -2222,12 +2225,14 @@ static rwlock_t batched_entropy_reset_lo
  * wait_for_random_bytes() should be called and return 0 at least once
  * at any point prior.
  */
-static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u64);
+static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u64) = {
+	.batch_lock	= __SPIN_LOCK_UNLOCKED(batched_entropy_u64.lock),
+};
+
 u64 get_random_u64(void)
 {
 	u64 ret;
-	bool use_lock;
-	unsigned long flags = 0;
+	unsigned long flags;
 	struct batched_entropy *batch;
 	static void *previous;
 
@@ -2242,28 +2247,25 @@ u64 get_random_u64(void)
 
 	warn_unseeded_randomness(&previous);
 
-	use_lock = READ_ONCE(crng_init) < 2;
-	batch = &get_cpu_var(batched_entropy_u64);
-	if (use_lock)
-		read_lock_irqsave(&batched_entropy_reset_lock, flags);
+	batch = raw_cpu_ptr(&batched_entropy_u64);
+	spin_lock_irqsave(&batch->batch_lock, flags);
 	if (batch->position % ARRAY_SIZE(batch->entropy_u64) == 0) {
 		extract_crng((u8 *)batch->entropy_u64);
 		batch->position = 0;
 	}
 	ret = batch->entropy_u64[batch->position++];
-	if (use_lock)
-		read_unlock_irqrestore(&batched_entropy_reset_lock, flags);
-	put_cpu_var(batched_entropy_u64);
+	spin_unlock_irqrestore(&batch->batch_lock, flags);
 	return ret;
 }
 EXPORT_SYMBOL(get_random_u64);
 
-static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u32);
+static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u32) = {
+	.batch_lock	= __SPIN_LOCK_UNLOCKED(batched_entropy_u32.lock),
+};
 u32 get_random_u32(void)
 {
 	u32 ret;
-	bool use_lock;
-	unsigned long flags = 0;
+	unsigned long flags;
 	struct batched_entropy *batch;
 	static void *previous;
 
@@ -2272,18 +2274,14 @@ u32 get_random_u32(void)
 
 	warn_unseeded_randomness(&previous);
 
-	use_lock = READ_ONCE(crng_init) < 2;
-	batch = &get_cpu_var(batched_entropy_u32);
-	if (use_lock)
-		read_lock_irqsave(&batched_entropy_reset_lock, flags);
+	batch = raw_cpu_ptr(&batched_entropy_u32);
+	spin_lock_irqsave(&batch->batch_lock, flags);
 	if (batch->position % ARRAY_SIZE(batch->entropy_u32) == 0) {
 		extract_crng((u8 *)batch->entropy_u32);
 		batch->position = 0;
 	}
 	ret = batch->entropy_u32[batch->position++];
-	if (use_lock)
-		read_unlock_irqrestore(&batched_entropy_reset_lock, flags);
-	put_cpu_var(batched_entropy_u32);
+	spin_unlock_irqrestore(&batch->batch_lock, flags);
 	return ret;
 }
 EXPORT_SYMBOL(get_random_u32);
@@ -2297,12 +2295,19 @@ static void invalidate_batched_entropy(v
 	int cpu;
 	unsigned long flags;
 
-	write_lock_irqsave(&batched_entropy_reset_lock, flags);
 	for_each_possible_cpu (cpu) {
-		per_cpu_ptr(&batched_entropy_u32, cpu)->position = 0;
-		per_cpu_ptr(&batched_entropy_u64, cpu)->position = 0;
+		struct batched_entropy *batched_entropy;
+
+		batched_entropy = per_cpu_ptr(&batched_entropy_u32, cpu);
+		spin_lock_irqsave(&batched_entropy->batch_lock, flags);
+		batched_entropy->position = 0;
+		spin_unlock(&batched_entropy->batch_lock);
+
+		batched_entropy = per_cpu_ptr(&batched_entropy_u64, cpu);
+		spin_lock(&batched_entropy->batch_lock);
+		batched_entropy->position = 0;
+		spin_unlock_irqrestore(&batched_entropy->batch_lock, flags);
 	}
-	write_unlock_irqrestore(&batched_entropy_reset_lock, flags);
 }
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/tpm/tpm1-cmd.c linux-libre-5.1.21-gnu/drivers/char/tpm/tpm1-cmd.c
--- linux-libre-5.1-gnu/drivers/char/tpm/tpm1-cmd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/tpm/tpm1-cmd.c	2019-07-28 02:28:39.000000000 -0400
@@ -510,7 +510,7 @@ struct tpm1_get_random_out {
  *
  * Return:
  * *  number of bytes read
- * * -errno or a TPM return code otherwise
+ * * -errno (positive TPM return codes are masked to -EIO)
  */
 int tpm1_get_random(struct tpm_chip *chip, u8 *dest, size_t max)
 {
@@ -531,8 +531,11 @@ int tpm1_get_random(struct tpm_chip *chi
 
 		rc = tpm_transmit_cmd(chip, &buf, sizeof(out->rng_data_len),
 				      "attempting get random");
-		if (rc)
+		if (rc) {
+			if (rc > 0)
+				rc = -EIO;
 			goto out;
+		}
 
 		out = (struct tpm1_get_random_out *)&buf.data[TPM_HEADER_SIZE];
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/tpm/tpm2-cmd.c linux-libre-5.1.21-gnu/drivers/char/tpm/tpm2-cmd.c
--- linux-libre-5.1-gnu/drivers/char/tpm/tpm2-cmd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/tpm/tpm2-cmd.c	2019-07-28 02:28:39.000000000 -0400
@@ -301,7 +301,7 @@ struct tpm2_get_random_out {
  *
  * Return:
  *   size of the buffer on success,
- *   -errno otherwise
+ *   -errno otherwise (positive TPM return codes are masked to -EIO)
  */
 int tpm2_get_random(struct tpm_chip *chip, u8 *dest, size_t max)
 {
@@ -328,8 +328,11 @@ int tpm2_get_random(struct tpm_chip *chi
 				       offsetof(struct tpm2_get_random_out,
 						buffer),
 				       "attempting get random");
-		if (err)
+		if (err) {
+			if (err > 0)
+				err = -EIO;
 			goto out;
+		}
 
 		out = (struct tpm2_get_random_out *)
 			&buf.data[TPM_HEADER_SIZE];
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/tpm/tpm-chip.c linux-libre-5.1.21-gnu/drivers/char/tpm/tpm-chip.c
--- linux-libre-5.1-gnu/drivers/char/tpm/tpm-chip.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/tpm/tpm-chip.c	2019-07-28 02:28:39.000000000 -0400
@@ -294,15 +294,15 @@ static int tpm_class_shutdown(struct dev
 {
 	struct tpm_chip *chip = container_of(dev, struct tpm_chip, dev);
 
+	down_write(&chip->ops_sem);
 	if (chip->flags & TPM_CHIP_FLAG_TPM2) {
-		down_write(&chip->ops_sem);
 		if (!tpm_chip_start(chip)) {
 			tpm2_shutdown(chip, TPM2_SU_CLEAR);
 			tpm_chip_stop(chip);
 		}
-		chip->ops = NULL;
-		up_write(&chip->ops_sem);
 	}
+	chip->ops = NULL;
+	up_write(&chip->ops_sem);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/char/virtio_console.c linux-libre-5.1.21-gnu/drivers/char/virtio_console.c
--- linux-libre-5.1-gnu/drivers/char/virtio_console.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/char/virtio_console.c	2019-07-28 02:28:39.000000000 -0400
@@ -75,7 +75,7 @@ struct ports_driver_data {
 	/* All the console devices handled by this driver */
 	struct list_head consoles;
 };
-static struct ports_driver_data pdrvdata;
+static struct ports_driver_data pdrvdata = { .next_vtermno = 1};
 
 static DEFINE_SPINLOCK(pdrvdata_lock);
 static DECLARE_COMPLETION(early_console_added);
@@ -1394,6 +1394,7 @@ static int add_port(struct ports_device
 	port->async_queue = NULL;
 
 	port->cons.ws.ws_row = port->cons.ws.ws_col = 0;
+	port->cons.vtermno = 0;
 
 	port->host_connected = port->guest_connected = false;
 	port->stats = (struct port_stats) { 0 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/hisilicon/clk-hi3660.c linux-libre-5.1.21-gnu/drivers/clk/hisilicon/clk-hi3660.c
--- linux-libre-5.1-gnu/drivers/clk/hisilicon/clk-hi3660.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/hisilicon/clk-hi3660.c	2019-07-28 02:28:39.000000000 -0400
@@ -163,8 +163,12 @@ static const struct hisi_gate_clock hi36
 	  "clk_isp_snclk_mux", CLK_SET_RATE_PARENT, 0x50, 17, 0, },
 	{ HI3660_CLK_GATE_ISP_SNCLK2, "clk_gate_isp_snclk2",
 	  "clk_isp_snclk_mux", CLK_SET_RATE_PARENT, 0x50, 18, 0, },
+	/*
+	 * clk_gate_ufs_subsys is a system bus clock, mark it as critical
+	 * clock and keep it on for system suspend and resume.
+	 */
 	{ HI3660_CLK_GATE_UFS_SUBSYS, "clk_gate_ufs_subsys", "clk_div_sysbus",
-	  CLK_SET_RATE_PARENT, 0x50, 21, 0, },
+	  CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, 0x50, 21, 0, },
 	{ HI3660_PCLK_GATE_DSI0, "pclk_gate_dsi0", "clk_div_cfgbus",
 	  CLK_SET_RATE_PARENT, 0x50, 28, 0, },
 	{ HI3660_PCLK_GATE_DSI1, "pclk_gate_dsi1", "clk_div_cfgbus",
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/imx/clk-imx8mm.c linux-libre-5.1.21-gnu/drivers/clk/imx/clk-imx8mm.c
--- linux-libre-5.1-gnu/drivers/clk/imx/clk-imx8mm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/imx/clk-imx8mm.c	2019-07-28 02:28:39.000000000 -0400
@@ -325,7 +325,7 @@ static const char *imx8mm_dsi_dbi_sels[]
 					    "sys_pll2_1000m", "sys_pll3_out", "audio_pll2_out", "video_pll1_out", };
 
 static const char *imx8mm_usdhc3_sels[] = {"osc_24m", "sys_pll1_400m", "sys_pll1_800m", "sys_pll2_500m",
-					   "sys_pll3_out", "sys_pll1_266m", "audio_pll2_clk", "sys_pll1_100m", };
+					   "sys_pll3_out", "sys_pll1_266m", "audio_pll2_out", "sys_pll1_100m", };
 
 static const char *imx8mm_csi1_core_sels[] = {"osc_24m", "sys_pll1_266m", "sys_pll2_250m", "sys_pll1_800m",
 					      "sys_pll2_1000m", "sys_pll3_out", "audio_pll2_out", "video_pll1_out", };
@@ -361,11 +361,11 @@ static const char *imx8mm_pdm_sels[] = {
 					"sys_pll2_1000m", "sys_pll3_out", "clk_ext3", "audio_pll2_out", };
 
 static const char *imx8mm_vpu_h1_sels[] = {"osc_24m", "vpu_pll_out", "sys_pll1_800m", "sys_pll2_1000m",
-					   "audio_pll2_clk", "sys_pll2_125m", "sys_pll3_clk", "audio_pll1_out", };
+					   "audio_pll2_out", "sys_pll2_125m", "sys_pll3_clk", "audio_pll1_out", };
 
 static const char *imx8mm_dram_core_sels[] = {"dram_pll_out", "dram_alt_root", };
 
-static const char *imx8mm_clko1_sels[] = {"osc_24m", "sys_pll1_800m", "osc_27m", "sys_pll1_200m", "audio_pll2_clk",
+static const char *imx8mm_clko1_sels[] = {"osc_24m", "sys_pll1_800m", "osc_27m", "sys_pll1_200m", "audio_pll2_out",
 					 "vpu_pll", "sys_pll1_80m", };
 
 static struct clk *clks[IMX8MM_CLK_END];
@@ -449,12 +449,12 @@ static int __init imx8mm_clocks_init(str
 	clks[IMX8MM_AUDIO_PLL2_OUT] = imx_clk_gate("audio_pll2_out", "audio_pll2_bypass", base + 0x14, 13);
 	clks[IMX8MM_VIDEO_PLL1_OUT] = imx_clk_gate("video_pll1_out", "video_pll1_bypass", base + 0x28, 13);
 	clks[IMX8MM_DRAM_PLL_OUT] = imx_clk_gate("dram_pll_out", "dram_pll_bypass", base + 0x50, 13);
-	clks[IMX8MM_GPU_PLL_OUT] = imx_clk_gate("gpu_pll_out", "gpu_pll_bypass", base + 0x64, 13);
-	clks[IMX8MM_VPU_PLL_OUT] = imx_clk_gate("vpu_pll_out", "vpu_pll_bypass", base + 0x74, 13);
-	clks[IMX8MM_ARM_PLL_OUT] = imx_clk_gate("arm_pll_out", "arm_pll_bypass", base + 0x84, 13);
-	clks[IMX8MM_SYS_PLL1_OUT] = imx_clk_gate("sys_pll1_out", "sys_pll1_bypass", base + 0x94, 13);
-	clks[IMX8MM_SYS_PLL2_OUT] = imx_clk_gate("sys_pll2_out", "sys_pll2_bypass", base + 0x104, 13);
-	clks[IMX8MM_SYS_PLL3_OUT] = imx_clk_gate("sys_pll3_out", "sys_pll3_bypass", base + 0x114, 13);
+	clks[IMX8MM_GPU_PLL_OUT] = imx_clk_gate("gpu_pll_out", "gpu_pll_bypass", base + 0x64, 11);
+	clks[IMX8MM_VPU_PLL_OUT] = imx_clk_gate("vpu_pll_out", "vpu_pll_bypass", base + 0x74, 11);
+	clks[IMX8MM_ARM_PLL_OUT] = imx_clk_gate("arm_pll_out", "arm_pll_bypass", base + 0x84, 11);
+	clks[IMX8MM_SYS_PLL1_OUT] = imx_clk_gate("sys_pll1_out", "sys_pll1_bypass", base + 0x94, 11);
+	clks[IMX8MM_SYS_PLL2_OUT] = imx_clk_gate("sys_pll2_out", "sys_pll2_bypass", base + 0x104, 11);
+	clks[IMX8MM_SYS_PLL3_OUT] = imx_clk_gate("sys_pll3_out", "sys_pll3_bypass", base + 0x114, 11);
 
 	/* SYS PLL fixed output */
 	clks[IMX8MM_SYS_PLL1_40M] = imx_clk_fixed_factor("sys_pll1_40m", "sys_pll1_out", 1, 20);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/mediatek/clk-pll.c linux-libre-5.1.21-gnu/drivers/clk/mediatek/clk-pll.c
--- linux-libre-5.1-gnu/drivers/clk/mediatek/clk-pll.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/mediatek/clk-pll.c	2019-07-28 02:28:39.000000000 -0400
@@ -88,6 +88,32 @@ static unsigned long __mtk_pll_recalc_ra
 	return ((unsigned long)vco + postdiv - 1) / postdiv;
 }
 
+static void __mtk_pll_tuner_enable(struct mtk_clk_pll *pll)
+{
+	u32 r;
+
+	if (pll->tuner_en_addr) {
+		r = readl(pll->tuner_en_addr) | BIT(pll->data->tuner_en_bit);
+		writel(r, pll->tuner_en_addr);
+	} else if (pll->tuner_addr) {
+		r = readl(pll->tuner_addr) | AUDPLL_TUNER_EN;
+		writel(r, pll->tuner_addr);
+	}
+}
+
+static void __mtk_pll_tuner_disable(struct mtk_clk_pll *pll)
+{
+	u32 r;
+
+	if (pll->tuner_en_addr) {
+		r = readl(pll->tuner_en_addr) & ~BIT(pll->data->tuner_en_bit);
+		writel(r, pll->tuner_en_addr);
+	} else if (pll->tuner_addr) {
+		r = readl(pll->tuner_addr) & ~AUDPLL_TUNER_EN;
+		writel(r, pll->tuner_addr);
+	}
+}
+
 static void mtk_pll_set_rate_regs(struct mtk_clk_pll *pll, u32 pcw,
 		int postdiv)
 {
@@ -96,6 +122,9 @@ static void mtk_pll_set_rate_regs(struct
 
 	pll_en = readl(pll->base_addr + REG_CON0) & CON0_BASE_EN;
 
+	/* disable tuner */
+	__mtk_pll_tuner_disable(pll);
+
 	/* set postdiv */
 	val = readl(pll->pd_addr);
 	val &= ~(POSTDIV_MASK << pll->data->pd_shift);
@@ -122,6 +151,9 @@ static void mtk_pll_set_rate_regs(struct
 	if (pll->tuner_addr)
 		writel(con1 + 1, pll->tuner_addr);
 
+	/* restore tuner_en */
+	__mtk_pll_tuner_enable(pll);
+
 	if (pll_en)
 		udelay(20);
 }
@@ -228,13 +260,7 @@ static int mtk_pll_prepare(struct clk_hw
 	r |= pll->data->en_mask;
 	writel(r, pll->base_addr + REG_CON0);
 
-	if (pll->tuner_en_addr) {
-		r = readl(pll->tuner_en_addr) | BIT(pll->data->tuner_en_bit);
-		writel(r, pll->tuner_en_addr);
-	} else if (pll->tuner_addr) {
-		r = readl(pll->tuner_addr) | AUDPLL_TUNER_EN;
-		writel(r, pll->tuner_addr);
-	}
+	__mtk_pll_tuner_enable(pll);
 
 	udelay(20);
 
@@ -258,13 +284,7 @@ static void mtk_pll_unprepare(struct clk
 		writel(r, pll->base_addr + REG_CON0);
 	}
 
-	if (pll->tuner_en_addr) {
-		r = readl(pll->tuner_en_addr) & ~BIT(pll->data->tuner_en_bit);
-		writel(r, pll->tuner_en_addr);
-	} else if (pll->tuner_addr) {
-		r = readl(pll->tuner_addr) & ~AUDPLL_TUNER_EN;
-		writel(r, pll->tuner_addr);
-	}
+	__mtk_pll_tuner_disable(pll);
 
 	r = readl(pll->base_addr + REG_CON0);
 	r &= ~CON0_BASE_EN;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/renesas/r8a774a1-cpg-mssr.c linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a774a1-cpg-mssr.c
--- linux-libre-5.1-gnu/drivers/clk/renesas/r8a774a1-cpg-mssr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a774a1-cpg-mssr.c	2019-07-28 02:28:39.000000000 -0400
@@ -123,8 +123,8 @@ static const struct mssr_mod_clk r8a774a
 	DEF_MOD("msiof2",		 209,	R8A774A1_CLK_MSO),
 	DEF_MOD("msiof1",		 210,	R8A774A1_CLK_MSO),
 	DEF_MOD("msiof0",		 211,	R8A774A1_CLK_MSO),
-	DEF_MOD("sys-dmac2",		 217,	R8A774A1_CLK_S0D3),
-	DEF_MOD("sys-dmac1",		 218,	R8A774A1_CLK_S0D3),
+	DEF_MOD("sys-dmac2",		 217,	R8A774A1_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		 218,	R8A774A1_CLK_S3D1),
 	DEF_MOD("sys-dmac0",		 219,	R8A774A1_CLK_S0D3),
 	DEF_MOD("cmt3",			 300,	R8A774A1_CLK_R),
 	DEF_MOD("cmt2",			 301,	R8A774A1_CLK_R),
@@ -143,8 +143,8 @@ static const struct mssr_mod_clk r8a774a
 	DEF_MOD("rwdt",			 402,	R8A774A1_CLK_R),
 	DEF_MOD("intc-ex",		 407,	R8A774A1_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A774A1_CLK_S0D3),
-	DEF_MOD("audmac1",		 501,	R8A774A1_CLK_S0D3),
-	DEF_MOD("audmac0",		 502,	R8A774A1_CLK_S0D3),
+	DEF_MOD("audmac1",		 501,	R8A774A1_CLK_S1D2),
+	DEF_MOD("audmac0",		 502,	R8A774A1_CLK_S1D2),
 	DEF_MOD("hscif4",		 516,	R8A774A1_CLK_S3D1),
 	DEF_MOD("hscif3",		 517,	R8A774A1_CLK_S3D1),
 	DEF_MOD("hscif2",		 518,	R8A774A1_CLK_S3D1),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/renesas/r8a774c0-cpg-mssr.c linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a774c0-cpg-mssr.c
--- linux-libre-5.1-gnu/drivers/clk/renesas/r8a774c0-cpg-mssr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a774c0-cpg-mssr.c	2019-07-28 02:28:39.000000000 -0400
@@ -157,7 +157,7 @@ static const struct mssr_mod_clk r8a774c
 	DEF_MOD("intc-ex",		 407,	R8A774C0_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A774C0_CLK_S0D3),
 
-	DEF_MOD("audmac0",		 502,	R8A774C0_CLK_S3D4),
+	DEF_MOD("audmac0",		 502,	R8A774C0_CLK_S1D2),
 	DEF_MOD("hscif4",		 516,	R8A774C0_CLK_S3D1C),
 	DEF_MOD("hscif3",		 517,	R8A774C0_CLK_S3D1C),
 	DEF_MOD("hscif2",		 518,	R8A774C0_CLK_S3D1C),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/renesas/r8a7795-cpg-mssr.c linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a7795-cpg-mssr.c
--- linux-libre-5.1-gnu/drivers/clk/renesas/r8a7795-cpg-mssr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a7795-cpg-mssr.c	2019-07-28 02:28:39.000000000 -0400
@@ -129,8 +129,8 @@ static struct mssr_mod_clk r8a7795_mod_c
 	DEF_MOD("msiof2",		 209,	R8A7795_CLK_MSO),
 	DEF_MOD("msiof1",		 210,	R8A7795_CLK_MSO),
 	DEF_MOD("msiof0",		 211,	R8A7795_CLK_MSO),
-	DEF_MOD("sys-dmac2",		 217,	R8A7795_CLK_S0D3),
-	DEF_MOD("sys-dmac1",		 218,	R8A7795_CLK_S0D3),
+	DEF_MOD("sys-dmac2",		 217,	R8A7795_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		 218,	R8A7795_CLK_S3D1),
 	DEF_MOD("sys-dmac0",		 219,	R8A7795_CLK_S0D3),
 	DEF_MOD("sceg-pub",		 229,	R8A7795_CLK_CR),
 	DEF_MOD("cmt3",			 300,	R8A7795_CLK_R),
@@ -153,8 +153,8 @@ static struct mssr_mod_clk r8a7795_mod_c
 	DEF_MOD("rwdt",			 402,	R8A7795_CLK_R),
 	DEF_MOD("intc-ex",		 407,	R8A7795_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A7795_CLK_S0D3),
-	DEF_MOD("audmac1",		 501,	R8A7795_CLK_S0D3),
-	DEF_MOD("audmac0",		 502,	R8A7795_CLK_S0D3),
+	DEF_MOD("audmac1",		 501,	R8A7795_CLK_S1D2),
+	DEF_MOD("audmac0",		 502,	R8A7795_CLK_S1D2),
 	DEF_MOD("drif7",		 508,	R8A7795_CLK_S3D2),
 	DEF_MOD("drif6",		 509,	R8A7795_CLK_S3D2),
 	DEF_MOD("drif5",		 510,	R8A7795_CLK_S3D2),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/renesas/r8a77965-cpg-mssr.c linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a77965-cpg-mssr.c
--- linux-libre-5.1-gnu/drivers/clk/renesas/r8a77965-cpg-mssr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a77965-cpg-mssr.c	2019-07-28 02:28:39.000000000 -0400
@@ -123,8 +123,8 @@ static const struct mssr_mod_clk r8a7796
 	DEF_MOD("msiof2",		209,	R8A77965_CLK_MSO),
 	DEF_MOD("msiof1",		210,	R8A77965_CLK_MSO),
 	DEF_MOD("msiof0",		211,	R8A77965_CLK_MSO),
-	DEF_MOD("sys-dmac2",		217,	R8A77965_CLK_S0D3),
-	DEF_MOD("sys-dmac1",		218,	R8A77965_CLK_S0D3),
+	DEF_MOD("sys-dmac2",		217,	R8A77965_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		218,	R8A77965_CLK_S3D1),
 	DEF_MOD("sys-dmac0",		219,	R8A77965_CLK_S0D3),
 
 	DEF_MOD("cmt3",			300,	R8A77965_CLK_R),
@@ -146,8 +146,8 @@ static const struct mssr_mod_clk r8a7796
 	DEF_MOD("intc-ex",		407,	R8A77965_CLK_CP),
 	DEF_MOD("intc-ap",		408,	R8A77965_CLK_S0D3),
 
-	DEF_MOD("audmac1",		501,	R8A77965_CLK_S0D3),
-	DEF_MOD("audmac0",		502,	R8A77965_CLK_S0D3),
+	DEF_MOD("audmac1",		501,	R8A77965_CLK_S1D2),
+	DEF_MOD("audmac0",		502,	R8A77965_CLK_S1D2),
 	DEF_MOD("drif7",		508,	R8A77965_CLK_S3D2),
 	DEF_MOD("drif6",		509,	R8A77965_CLK_S3D2),
 	DEF_MOD("drif5",		510,	R8A77965_CLK_S3D2),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/renesas/r8a7796-cpg-mssr.c linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a7796-cpg-mssr.c
--- linux-libre-5.1-gnu/drivers/clk/renesas/r8a7796-cpg-mssr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a7796-cpg-mssr.c	2019-07-28 02:28:39.000000000 -0400
@@ -126,8 +126,8 @@ static const struct mssr_mod_clk r8a7796
 	DEF_MOD("msiof2",		 209,	R8A7796_CLK_MSO),
 	DEF_MOD("msiof1",		 210,	R8A7796_CLK_MSO),
 	DEF_MOD("msiof0",		 211,	R8A7796_CLK_MSO),
-	DEF_MOD("sys-dmac2",		 217,	R8A7796_CLK_S0D3),
-	DEF_MOD("sys-dmac1",		 218,	R8A7796_CLK_S0D3),
+	DEF_MOD("sys-dmac2",		 217,	R8A7796_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		 218,	R8A7796_CLK_S3D1),
 	DEF_MOD("sys-dmac0",		 219,	R8A7796_CLK_S0D3),
 	DEF_MOD("cmt3",			 300,	R8A7796_CLK_R),
 	DEF_MOD("cmt2",			 301,	R8A7796_CLK_R),
@@ -146,8 +146,8 @@ static const struct mssr_mod_clk r8a7796
 	DEF_MOD("rwdt",			 402,	R8A7796_CLK_R),
 	DEF_MOD("intc-ex",		 407,	R8A7796_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A7796_CLK_S0D3),
-	DEF_MOD("audmac1",		 501,	R8A7796_CLK_S0D3),
-	DEF_MOD("audmac0",		 502,	R8A7796_CLK_S0D3),
+	DEF_MOD("audmac1",		 501,	R8A7796_CLK_S1D2),
+	DEF_MOD("audmac0",		 502,	R8A7796_CLK_S1D2),
 	DEF_MOD("drif7",		 508,	R8A7796_CLK_S3D2),
 	DEF_MOD("drif6",		 509,	R8A7796_CLK_S3D2),
 	DEF_MOD("drif5",		 510,	R8A7796_CLK_S3D2),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/renesas/r8a77990-cpg-mssr.c linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a77990-cpg-mssr.c
--- linux-libre-5.1-gnu/drivers/clk/renesas/r8a77990-cpg-mssr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a77990-cpg-mssr.c	2019-07-28 02:28:39.000000000 -0400
@@ -152,7 +152,7 @@ static const struct mssr_mod_clk r8a7799
 	DEF_MOD("intc-ex",		 407,	R8A77990_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A77990_CLK_S0D3),
 
-	DEF_MOD("audmac0",		 502,	R8A77990_CLK_S3D4),
+	DEF_MOD("audmac0",		 502,	R8A77990_CLK_S1D2),
 	DEF_MOD("drif7",		 508,	R8A77990_CLK_S3D2),
 	DEF_MOD("drif6",		 509,	R8A77990_CLK_S3D2),
 	DEF_MOD("drif5",		 510,	R8A77990_CLK_S3D2),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/renesas/r8a77995-cpg-mssr.c linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a77995-cpg-mssr.c
--- linux-libre-5.1-gnu/drivers/clk/renesas/r8a77995-cpg-mssr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/renesas/r8a77995-cpg-mssr.c	2019-07-28 02:28:39.000000000 -0400
@@ -133,7 +133,7 @@ static const struct mssr_mod_clk r8a7799
 	DEF_MOD("rwdt",			 402,	R8A77995_CLK_R),
 	DEF_MOD("intc-ex",		 407,	R8A77995_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A77995_CLK_S1D2),
-	DEF_MOD("audmac0",		 502,	R8A77995_CLK_S3D1),
+	DEF_MOD("audmac0",		 502,	R8A77995_CLK_S1D2),
 	DEF_MOD("hscif3",		 517,	R8A77995_CLK_S3D1C),
 	DEF_MOD("hscif0",		 520,	R8A77995_CLK_S3D1C),
 	DEF_MOD("thermal",		 522,	R8A77995_CLK_CP),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/rockchip/clk-rk3288.c linux-libre-5.1.21-gnu/drivers/clk/rockchip/clk-rk3288.c
--- linux-libre-5.1-gnu/drivers/clk/rockchip/clk-rk3288.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/rockchip/clk-rk3288.c	2019-07-28 02:28:39.000000000 -0400
@@ -219,7 +219,7 @@ PNAME(mux_hsadcout_p)	= { "hsadc_src", "
 PNAME(mux_edp_24m_p)	= { "ext_edp_24m", "xin24m" };
 PNAME(mux_tspout_p)	= { "cpll", "gpll", "npll", "xin27m" };
 
-PNAME(mux_aclk_vcodec_pre_p)	= { "aclk_vepu", "aclk_vdpu" };
+PNAME(mux_aclk_vcodec_pre_p)	= { "aclk_vdpu", "aclk_vepu" };
 PNAME(mux_usbphy480m_p)		= { "sclk_otgphy1_480m", "sclk_otgphy2_480m",
 				    "sclk_otgphy0_480m" };
 PNAME(mux_hsicphy480m_p)	= { "cpll", "gpll", "usbphy480m_src" };
@@ -313,13 +313,13 @@ static struct rockchip_clk_branch rk3288
 	COMPOSITE_NOMUX(0, "aclk_core_mp", "armclk", CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(0), 4, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
 			RK3288_CLKGATE_CON(12), 6, GFLAGS),
-	COMPOSITE_NOMUX(0, "atclk", "armclk", CLK_IGNORE_UNUSED,
+	COMPOSITE_NOMUX(0, "atclk", "armclk", 0,
 			RK3288_CLKSEL_CON(37), 4, 5, DFLAGS | CLK_DIVIDER_READ_ONLY,
 			RK3288_CLKGATE_CON(12), 7, GFLAGS),
 	COMPOSITE_NOMUX(0, "pclk_dbg_pre", "armclk", CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(37), 9, 5, DFLAGS | CLK_DIVIDER_READ_ONLY,
 			RK3288_CLKGATE_CON(12), 8, GFLAGS),
-	GATE(0, "pclk_dbg", "pclk_dbg_pre", CLK_IGNORE_UNUSED,
+	GATE(0, "pclk_dbg", "pclk_dbg_pre", 0,
 			RK3288_CLKGATE_CON(12), 9, GFLAGS),
 	GATE(0, "cs_dbg", "pclk_dbg_pre", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(12), 10, GFLAGS),
@@ -420,7 +420,7 @@ static struct rockchip_clk_branch rk3288
 	COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_usb480m_p, 0,
 			RK3288_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS,
 			RK3288_CLKGATE_CON(3), 11, GFLAGS),
-	MUXGRF(0, "aclk_vcodec_pre", mux_aclk_vcodec_pre_p, 0,
+	MUXGRF(0, "aclk_vcodec_pre", mux_aclk_vcodec_pre_p, CLK_SET_RATE_PARENT,
 			RK3288_GRF_SOC_CON(0), 7, 1, MFLAGS),
 	GATE(ACLK_VCODEC, "aclk_vcodec", "aclk_vcodec_pre", 0,
 		RK3288_CLKGATE_CON(9), 0, GFLAGS),
@@ -647,7 +647,7 @@ static struct rockchip_clk_branch rk3288
 	INVERTER(SCLK_HSADC, "sclk_hsadc", "sclk_hsadc_out",
 			RK3288_CLKSEL_CON(22), 7, IFLAGS),
 
-	GATE(0, "jtag", "ext_jtag", CLK_IGNORE_UNUSED,
+	GATE(0, "jtag", "ext_jtag", 0,
 			RK3288_CLKGATE_CON(4), 14, GFLAGS),
 
 	COMPOSITE_NODIV(SCLK_USBPHY480M_SRC, "usbphy480m_src", mux_usbphy480m_p, 0,
@@ -656,7 +656,7 @@ static struct rockchip_clk_branch rk3288
 	COMPOSITE_NODIV(SCLK_HSICPHY480M, "sclk_hsicphy480m", mux_hsicphy480m_p, 0,
 			RK3288_CLKSEL_CON(29), 0, 2, MFLAGS,
 			RK3288_CLKGATE_CON(3), 6, GFLAGS),
-	GATE(0, "hsicphy12m_xin12m", "xin12m", CLK_IGNORE_UNUSED,
+	GATE(0, "hsicphy12m_xin12m", "xin12m", 0,
 			RK3288_CLKGATE_CON(13), 9, GFLAGS),
 	DIV(0, "hsicphy12m_usbphy", "sclk_hsicphy480m", 0,
 			RK3288_CLKSEL_CON(11), 8, 6, DFLAGS),
@@ -697,7 +697,7 @@ static struct rockchip_clk_branch rk3288
 	GATE(PCLK_TZPC, "pclk_tzpc", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 3, GFLAGS),
 	GATE(PCLK_UART2, "pclk_uart2", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 9, GFLAGS),
 	GATE(PCLK_EFUSE256, "pclk_efuse_256", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 10, GFLAGS),
-	GATE(PCLK_RKPWM, "pclk_rkpwm", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 11, GFLAGS),
+	GATE(PCLK_RKPWM, "pclk_rkpwm", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 11, GFLAGS),
 
 	/* ddrctrl [DDR Controller PHY clock] gates */
 	GATE(0, "nclk_ddrupctl0", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 4, GFLAGS),
@@ -837,12 +837,9 @@ static const char *const rk3288_critical
 	"pclk_alive_niu",
 	"pclk_pd_pmu",
 	"pclk_pmu_niu",
-	"pclk_core_niu",
-	"pclk_ddrupctl0",
-	"pclk_publ0",
-	"pclk_ddrupctl1",
-	"pclk_publ1",
 	"pmu_hclk_otg0",
+	/* pwm-regulators on some boards, so handoff-critical later */
+	"pclk_rkpwm",
 };
 
 static void __iomem *rk3288_cru_base;
@@ -859,6 +856,9 @@ static const int rk3288_saved_cru_reg_id
 	RK3288_CLKSEL_CON(10),
 	RK3288_CLKSEL_CON(33),
 	RK3288_CLKSEL_CON(37),
+
+	/* We turn aclk_dmac1 on for suspend; this will restore it */
+	RK3288_CLKGATE_CON(10),
 };
 
 static u32 rk3288_saved_cru_regs[ARRAY_SIZE(rk3288_saved_cru_reg_ids)];
@@ -875,6 +875,14 @@ static int rk3288_clk_suspend(void)
 	}
 
 	/*
+	 * Going into deep sleep (specifically setting PMU_CLR_DMA in
+	 * RK3288_PMU_PWRMODE_CON1) appears to fail unless
+	 * "aclk_dmac1" is on.
+	 */
+	writel_relaxed(1 << (12 + 16),
+		       rk3288_cru_base + RK3288_CLKGATE_CON(10));
+
+	/*
 	 * Switch PLLs other than DPLL (for SDRAM) to slow mode to
 	 * avoid crashes on resume. The Mask ROM on the system will
 	 * put APLL, CPLL, and GPLL into slow mode at resume time
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/rockchip/clk-rk3328.c linux-libre-5.1.21-gnu/drivers/clk/rockchip/clk-rk3328.c
--- linux-libre-5.1-gnu/drivers/clk/rockchip/clk-rk3328.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/rockchip/clk-rk3328.c	2019-07-28 02:28:39.000000000 -0400
@@ -458,7 +458,7 @@ static struct rockchip_clk_branch rk3328
 			RK3328_CLKSEL_CON(35), 15, 1, MFLAGS, 8, 7, DFLAGS,
 			RK3328_CLKGATE_CON(2), 12, GFLAGS),
 	COMPOSITE(SCLK_CRYPTO, "clk_crypto", mux_2plls_p, 0,
-			RK3328_CLKSEL_CON(20), 7, 1, MFLAGS, 0, 7, DFLAGS,
+			RK3328_CLKSEL_CON(20), 7, 1, MFLAGS, 0, 5, DFLAGS,
 			RK3328_CLKGATE_CON(2), 4, GFLAGS),
 	COMPOSITE_NOMUX(SCLK_TSADC, "clk_tsadc", "clk_24m", 0,
 			RK3328_CLKSEL_CON(22), 0, 10, DFLAGS,
@@ -550,15 +550,15 @@ static struct rockchip_clk_branch rk3328
 	GATE(0, "hclk_rkvenc_niu", "hclk_rkvenc", 0,
 			RK3328_CLKGATE_CON(25), 1, GFLAGS),
 	GATE(ACLK_H265, "aclk_h265", "aclk_rkvenc", 0,
-			RK3328_CLKGATE_CON(25), 0, GFLAGS),
+			RK3328_CLKGATE_CON(25), 2, GFLAGS),
 	GATE(PCLK_H265, "pclk_h265", "hclk_rkvenc", 0,
-			RK3328_CLKGATE_CON(25), 1, GFLAGS),
+			RK3328_CLKGATE_CON(25), 3, GFLAGS),
 	GATE(ACLK_H264, "aclk_h264", "aclk_rkvenc", 0,
-			RK3328_CLKGATE_CON(25), 0, GFLAGS),
+			RK3328_CLKGATE_CON(25), 4, GFLAGS),
 	GATE(HCLK_H264, "hclk_h264", "hclk_rkvenc", 0,
-			RK3328_CLKGATE_CON(25), 1, GFLAGS),
+			RK3328_CLKGATE_CON(25), 5, GFLAGS),
 	GATE(ACLK_AXISRAM, "aclk_axisram", "aclk_rkvenc", CLK_IGNORE_UNUSED,
-			RK3328_CLKGATE_CON(25), 0, GFLAGS),
+			RK3328_CLKGATE_CON(25), 6, GFLAGS),
 
 	COMPOSITE(SCLK_VENC_CORE, "sclk_venc_core", mux_4plls_p, 0,
 			RK3328_CLKSEL_CON(51), 14, 2, MFLAGS, 8, 5, DFLAGS,
@@ -663,7 +663,7 @@ static struct rockchip_clk_branch rk3328
 
 	/* PD_GMAC */
 	COMPOSITE(ACLK_GMAC, "aclk_gmac", mux_2plls_hdmiphy_p, 0,
-			RK3328_CLKSEL_CON(35), 6, 2, MFLAGS, 0, 5, DFLAGS,
+			RK3328_CLKSEL_CON(25), 6, 2, MFLAGS, 0, 5, DFLAGS,
 			RK3328_CLKGATE_CON(3), 2, GFLAGS),
 	COMPOSITE_NOMUX(PCLK_GMAC, "pclk_gmac", "aclk_gmac", 0,
 			RK3328_CLKSEL_CON(25), 8, 3, DFLAGS,
@@ -733,7 +733,7 @@ static struct rockchip_clk_branch rk3328
 
 	/* PD_PERI */
 	GATE(0, "aclk_peri_noc", "aclk_peri", CLK_IGNORE_UNUSED, RK3328_CLKGATE_CON(19), 11, GFLAGS),
-	GATE(ACLK_USB3OTG, "aclk_usb3otg", "aclk_peri", 0, RK3328_CLKGATE_CON(19), 4, GFLAGS),
+	GATE(ACLK_USB3OTG, "aclk_usb3otg", "aclk_peri", 0, RK3328_CLKGATE_CON(19), 14, GFLAGS),
 
 	GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK3328_CLKGATE_CON(19), 0, GFLAGS),
 	GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK3328_CLKGATE_CON(19), 1, GFLAGS),
@@ -913,7 +913,7 @@ static void __init rk3328_clk_init(struc
 				     &rk3328_cpuclk_data, rk3328_cpuclk_rates,
 				     ARRAY_SIZE(rk3328_cpuclk_rates));
 
-	rockchip_register_softrst(np, 11, reg_base + RK3328_SOFTRST_CON(0),
+	rockchip_register_softrst(np, 12, reg_base + RK3328_SOFTRST_CON(0),
 				  ROCKCHIP_SOFTRST_HIWORD_MASK);
 
 	rockchip_register_restart_notifier(ctx, RK3328_GLB_SRST_FST, NULL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/socfpga/clk-s10.c linux-libre-5.1.21-gnu/drivers/clk/socfpga/clk-s10.c
--- linux-libre-5.1-gnu/drivers/clk/socfpga/clk-s10.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/socfpga/clk-s10.c	2019-07-28 02:28:39.000000000 -0400
@@ -103,9 +103,9 @@ static const struct stratix10_perip_cnt_
 	{ STRATIX10_NOC_CLK, "noc_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux),
 	  0, 0, 0, 0x3C, 1},
 	{ STRATIX10_EMAC_A_FREE_CLK, "emaca_free_clk", NULL, emaca_free_mux, ARRAY_SIZE(emaca_free_mux),
-	  0, 0, 4, 0xB0, 0},
+	  0, 0, 2, 0xB0, 0},
 	{ STRATIX10_EMAC_B_FREE_CLK, "emacb_free_clk", NULL, emacb_free_mux, ARRAY_SIZE(emacb_free_mux),
-	  0, 0, 4, 0xB0, 1},
+	  0, 0, 2, 0xB0, 1},
 	{ STRATIX10_EMAC_PTP_FREE_CLK, "emac_ptp_free_clk", NULL, emac_ptp_free_mux,
 	  ARRAY_SIZE(emac_ptp_free_mux), 0, 0, 4, 0xB0, 2},
 	{ STRATIX10_GPIO_DB_FREE_CLK, "gpio_db_free_clk", NULL, gpio_db_free_mux,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/tegra/clk-pll.c linux-libre-5.1.21-gnu/drivers/clk/tegra/clk-pll.c
--- linux-libre-5.1-gnu/drivers/clk/tegra/clk-pll.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/tegra/clk-pll.c	2019-07-28 02:28:39.000000000 -0400
@@ -663,8 +663,8 @@ static void _update_pll_mnp(struct tegra
 		pll_override_writel(val, params->pmc_divp_reg, pll);
 
 		val = pll_override_readl(params->pmc_divnm_reg, pll);
-		val &= ~(divm_mask(pll) << div_nmp->override_divm_shift) |
-			~(divn_mask(pll) << div_nmp->override_divn_shift);
+		val &= ~((divm_mask(pll) << div_nmp->override_divm_shift) |
+			(divn_mask(pll) << div_nmp->override_divn_shift));
 		val |= (cfg->m << div_nmp->override_divm_shift) |
 			(cfg->n << div_nmp->override_divn_shift);
 		pll_override_writel(val, params->pmc_divnm_reg, pll);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/tegra/clk-tegra210.c linux-libre-5.1.21-gnu/drivers/clk/tegra/clk-tegra210.c
--- linux-libre-5.1-gnu/drivers/clk/tegra/clk-tegra210.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/tegra/clk-tegra210.c	2019-07-28 02:28:39.000000000 -0400
@@ -3377,6 +3377,8 @@ static struct tegra_clk_init_table init_
 	{ TEGRA210_CLK_I2S3_SYNC, TEGRA210_CLK_CLK_MAX, 24576000, 0 },
 	{ TEGRA210_CLK_I2S4_SYNC, TEGRA210_CLK_CLK_MAX, 24576000, 0 },
 	{ TEGRA210_CLK_VIMCLK_SYNC, TEGRA210_CLK_CLK_MAX, 24576000, 0 },
+	{ TEGRA210_CLK_HDA, TEGRA210_CLK_PLL_P, 51000000, 0 },
+	{ TEGRA210_CLK_HDA2CODEC_2X, TEGRA210_CLK_PLL_P, 48000000, 0 },
 	/* This MUST be the last entry. */
 	{ TEGRA210_CLK_CLK_MAX, TEGRA210_CLK_CLK_MAX, 0, 0 },
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/ti/clkctrl.c linux-libre-5.1.21-gnu/drivers/clk/ti/clkctrl.c
--- linux-libre-5.1-gnu/drivers/clk/ti/clkctrl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/ti/clkctrl.c	2019-07-28 02:28:39.000000000 -0400
@@ -137,9 +137,6 @@ static int _omap4_clkctrl_clk_enable(str
 	int ret;
 	union omap4_timeout timeout = { 0 };
 
-	if (!clk->enable_bit)
-		return 0;
-
 	if (clk->clkdm) {
 		ret = ti_clk_ll_ops->clkdm_clk_enable(clk->clkdm, hw->clk);
 		if (ret) {
@@ -151,6 +148,9 @@ static int _omap4_clkctrl_clk_enable(str
 		}
 	}
 
+	if (!clk->enable_bit)
+		return 0;
+
 	val = ti_clk_ll_ops->clk_readl(&clk->enable_reg);
 
 	val &= ~OMAP4_MODULEMODE_MASK;
@@ -179,7 +179,7 @@ static void _omap4_clkctrl_clk_disable(s
 	union omap4_timeout timeout = { 0 };
 
 	if (!clk->enable_bit)
-		return;
+		goto exit;
 
 	val = ti_clk_ll_ops->clk_readl(&clk->enable_reg);
 
@@ -229,6 +229,7 @@ static struct clk_hw *_ti_omap4_clkctrl_
 {
 	struct omap_clkctrl_provider *provider = data;
 	struct omap_clkctrl_clk *entry;
+	bool found = false;
 
 	if (clkspec->args_count != 2)
 		return ERR_PTR(-EINVAL);
@@ -238,11 +239,13 @@ static struct clk_hw *_ti_omap4_clkctrl_
 
 	list_for_each_entry(entry, &provider->clocks, node) {
 		if (entry->reg_offset == clkspec->args[0] &&
-		    entry->bit_offset == clkspec->args[1])
+		    entry->bit_offset == clkspec->args[1]) {
+			found = true;
 			break;
+		}
 	}
 
-	if (!entry)
+	if (!found)
 		return ERR_PTR(-EINVAL);
 
 	return entry->clk;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clk/zynqmp/divider.c linux-libre-5.1.21-gnu/drivers/clk/zynqmp/divider.c
--- linux-libre-5.1-gnu/drivers/clk/zynqmp/divider.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clk/zynqmp/divider.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,12 +31,14 @@
  * struct zynqmp_clk_divider - adjustable divider clock
  * @hw:		handle between common and hardware-specific interfaces
  * @flags:	Hardware specific flags
+ * @is_frac:	The divider is a fractional divider
  * @clk_id:	Id of clock
  * @div_type:	divisor type (TYPE_DIV1 or TYPE_DIV2)
  */
 struct zynqmp_clk_divider {
 	struct clk_hw hw;
 	u8 flags;
+	bool is_frac;
 	u32 clk_id;
 	u32 div_type;
 };
@@ -116,8 +118,7 @@ static long zynqmp_clk_divider_round_rat
 
 	bestdiv = zynqmp_divider_get_val(*prate, rate);
 
-	if ((clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) &&
-	    (divider->flags & CLK_FRAC))
+	if ((clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) && divider->is_frac)
 		bestdiv = rate % *prate ? 1 : bestdiv;
 	*prate = rate * bestdiv;
 
@@ -195,11 +196,13 @@ struct clk_hw *zynqmp_clk_register_divid
 
 	init.name = name;
 	init.ops = &zynqmp_clk_divider_ops;
-	init.flags = nodes->flag;
+	/* CLK_FRAC is not defined in the common clk framework */
+	init.flags = nodes->flag & ~CLK_FRAC;
 	init.parent_names = parents;
 	init.num_parents = 1;
 
 	/* struct clk_divider assignments */
+	div->is_frac = !!(nodes->flag & CLK_FRAC);
 	div->flags = nodes->type_flag;
 	div->hw.init = &init;
 	div->clk_id = clk_id;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clocksource/exynos_mct.c linux-libre-5.1.21-gnu/drivers/clocksource/exynos_mct.c
--- linux-libre-5.1-gnu/drivers/clocksource/exynos_mct.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clocksource/exynos_mct.c	2019-07-28 02:28:39.000000000 -0400
@@ -209,7 +209,7 @@ static void exynos4_frc_resume(struct cl
 
 static struct clocksource mct_frc = {
 	.name		= "mct-frc",
-	.rating		= 400,
+	.rating		= 450,	/* use value higher than ARM arch timer */
 	.read		= exynos4_frc_read,
 	.mask		= CLOCKSOURCE_MASK(32),
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
@@ -464,7 +464,7 @@ static int exynos4_mct_starting_cpu(unsi
 	evt->set_state_oneshot_stopped = set_state_shutdown;
 	evt->tick_resume = set_state_shutdown;
 	evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
-	evt->rating = 450;
+	evt->rating = 500;	/* use value higher than ARM arch timer */
 
 	exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/clocksource/timer-tegra20.c linux-libre-5.1.21-gnu/drivers/clocksource/timer-tegra20.c
--- linux-libre-5.1-gnu/drivers/clocksource/timer-tegra20.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/clocksource/timer-tegra20.c	2019-07-28 02:28:39.000000000 -0400
@@ -310,7 +310,7 @@ static int __init tegra_init_timer(struc
 			pr_err("%s: can't map IRQ for CPU%d\n",
 			       __func__, cpu);
 			ret = -EINVAL;
-			goto out;
+			goto out_irq;
 		}
 
 		irq_set_status_flags(cpu_to->clkevt.irq, IRQ_NOAUTOEN);
@@ -320,7 +320,8 @@ static int __init tegra_init_timer(struc
 		if (ret) {
 			pr_err("%s: cannot setup irq %d for CPU%d\n",
 				__func__, cpu_to->clkevt.irq, cpu);
-			ret = -EINVAL;
+			irq_dispose_mapping(cpu_to->clkevt.irq);
+			cpu_to->clkevt.irq = 0;
 			goto out_irq;
 		}
 	}
@@ -340,6 +341,8 @@ out_irq:
 			irq_dispose_mapping(cpu_to->clkevt.irq);
 		}
 	}
+
+	to->of_base.base = timer_reg_base;
 out:
 	timer_of_cleanup(to);
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/armada-37xx-cpufreq.c linux-libre-5.1.21-gnu/drivers/cpufreq/armada-37xx-cpufreq.c
--- linux-libre-5.1-gnu/drivers/cpufreq/armada-37xx-cpufreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/armada-37xx-cpufreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -359,11 +359,11 @@ static int __init armada37xx_cpufreq_dri
 	struct armada_37xx_dvfs *dvfs;
 	struct platform_device *pdev;
 	unsigned long freq;
-	unsigned int cur_frequency;
+	unsigned int cur_frequency, base_frequency;
 	struct regmap *nb_pm_base, *avs_base;
 	struct device *cpu_dev;
 	int load_lvl, ret;
-	struct clk *clk;
+	struct clk *clk, *parent;
 
 	nb_pm_base =
 		syscon_regmap_lookup_by_compatible("marvell,armada-3700-nb-pm");
@@ -399,6 +399,22 @@ static int __init armada37xx_cpufreq_dri
 		return PTR_ERR(clk);
 	}
 
+	parent = clk_get_parent(clk);
+	if (IS_ERR(parent)) {
+		dev_err(cpu_dev, "Cannot get parent clock for CPU0\n");
+		clk_put(clk);
+		return PTR_ERR(parent);
+	}
+
+	/* Get parent CPU frequency */
+	base_frequency =  clk_get_rate(parent);
+
+	if (!base_frequency) {
+		dev_err(cpu_dev, "Failed to get parent clock rate for CPU\n");
+		clk_put(clk);
+		return -EINVAL;
+	}
+
 	/* Get nominal (current) CPU frequency */
 	cur_frequency = clk_get_rate(clk);
 	if (!cur_frequency) {
@@ -431,7 +447,7 @@ static int __init armada37xx_cpufreq_dri
 	for (load_lvl = ARMADA_37XX_DVFS_LOAD_0; load_lvl < LOAD_LEVEL_NR;
 	     load_lvl++) {
 		unsigned long u_volt = avs_map[dvfs->avs[load_lvl]] * 1000;
-		freq = cur_frequency / dvfs->divider[load_lvl];
+		freq = base_frequency / dvfs->divider[load_lvl];
 		ret = dev_pm_opp_add(cpu_dev, freq, u_volt);
 		if (ret)
 			goto remove_opp;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/armada-8k-cpufreq.c linux-libre-5.1.21-gnu/drivers/cpufreq/armada-8k-cpufreq.c
--- linux-libre-5.1-gnu/drivers/cpufreq/armada-8k-cpufreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/armada-8k-cpufreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -132,6 +132,7 @@ static int __init armada_8k_cpufreq_init
 		of_node_put(node);
 		return -ENODEV;
 	}
+	of_node_put(node);
 
 	nb_cpus = num_possible_cpus();
 	freq_tables = kcalloc(nb_cpus, sizeof(*freq_tables), GFP_KERNEL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/cpufreq.c linux-libre-5.1.21-gnu/drivers/cpufreq/cpufreq.c
--- linux-libre-5.1-gnu/drivers/cpufreq/cpufreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/cpufreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -1098,6 +1098,7 @@ static struct cpufreq_policy *cpufreq_po
 				   cpufreq_global_kobject, "policy%u", cpu);
 	if (ret) {
 		pr_err("%s: failed to init policy->kobj: %d\n", __func__, ret);
+		kobject_put(&policy->kobj);
 		goto err_free_real_cpus;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/cpufreq_governor.c linux-libre-5.1.21-gnu/drivers/cpufreq/cpufreq_governor.c
--- linux-libre-5.1-gnu/drivers/cpufreq/cpufreq_governor.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/cpufreq_governor.c	2019-07-28 02:28:39.000000000 -0400
@@ -459,6 +459,8 @@ int cpufreq_dbs_governor_init(struct cpu
 	/* Failure, so roll back. */
 	pr_err("initialization failed (dbs_data kobject init error %d)\n", ret);
 
+	kobject_put(&dbs_data->attr_set.kobj);
+
 	policy->governor_data = NULL;
 
 	if (!have_governor_per_policy())
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/imx6q-cpufreq.c linux-libre-5.1.21-gnu/drivers/cpufreq/imx6q-cpufreq.c
--- linux-libre-5.1-gnu/drivers/cpufreq/imx6q-cpufreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/imx6q-cpufreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -388,11 +388,11 @@ static int imx6q_cpufreq_probe(struct pl
 		ret = imx6ul_opp_check_speed_grading(cpu_dev);
 		if (ret) {
 			if (ret == -EPROBE_DEFER)
-				return ret;
+				goto put_node;
 
 			dev_err(cpu_dev, "failed to read ocotp: %d\n",
 				ret);
-			return ret;
+			goto put_node;
 		}
 	} else {
 		imx6q_opp_check_speed_grading(cpu_dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/kirkwood-cpufreq.c linux-libre-5.1.21-gnu/drivers/cpufreq/kirkwood-cpufreq.c
--- linux-libre-5.1-gnu/drivers/cpufreq/kirkwood-cpufreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/kirkwood-cpufreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -124,13 +124,14 @@ static int kirkwood_cpufreq_probe(struct
 	priv.cpu_clk = of_clk_get_by_name(np, "cpu_clk");
 	if (IS_ERR(priv.cpu_clk)) {
 		dev_err(priv.dev, "Unable to get cpuclk\n");
-		return PTR_ERR(priv.cpu_clk);
+		err = PTR_ERR(priv.cpu_clk);
+		goto out_node;
 	}
 
 	err = clk_prepare_enable(priv.cpu_clk);
 	if (err) {
 		dev_err(priv.dev, "Unable to prepare cpuclk\n");
-		return err;
+		goto out_node;
 	}
 
 	kirkwood_freq_table[0].frequency = clk_get_rate(priv.cpu_clk) / 1000;
@@ -161,20 +162,22 @@ static int kirkwood_cpufreq_probe(struct
 		goto out_ddr;
 	}
 
-	of_node_put(np);
-	np = NULL;
-
 	err = cpufreq_register_driver(&kirkwood_cpufreq_driver);
-	if (!err)
-		return 0;
+	if (err) {
+		dev_err(priv.dev, "Failed to register cpufreq driver\n");
+		goto out_powersave;
+	}
 
-	dev_err(priv.dev, "Failed to register cpufreq driver\n");
+	of_node_put(np);
+	return 0;
 
+out_powersave:
 	clk_disable_unprepare(priv.powersave_clk);
 out_ddr:
 	clk_disable_unprepare(priv.ddr_clk);
 out_cpu:
 	clk_disable_unprepare(priv.cpu_clk);
+out_node:
 	of_node_put(np);
 
 	return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/pasemi-cpufreq.c linux-libre-5.1.21-gnu/drivers/cpufreq/pasemi-cpufreq.c
--- linux-libre-5.1-gnu/drivers/cpufreq/pasemi-cpufreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/pasemi-cpufreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -146,6 +146,7 @@ static int pas_cpufreq_cpu_init(struct c
 
 	cpu = of_get_cpu_node(policy->cpu, NULL);
 
+	of_node_put(cpu);
 	if (!cpu)
 		goto out;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/pmac32-cpufreq.c linux-libre-5.1.21-gnu/drivers/cpufreq/pmac32-cpufreq.c
--- linux-libre-5.1-gnu/drivers/cpufreq/pmac32-cpufreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/pmac32-cpufreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -552,6 +552,7 @@ static int pmac_cpufreq_init_7447A(struc
 	volt_gpio_np = of_find_node_by_name(NULL, "cpu-vcore-select");
 	if (volt_gpio_np)
 		voltage_gpio = read_gpio(volt_gpio_np);
+	of_node_put(volt_gpio_np);
 	if (!voltage_gpio){
 		pr_err("missing cpu-vcore-select gpio\n");
 		return 1;
@@ -588,6 +589,7 @@ static int pmac_cpufreq_init_750FX(struc
 	if (volt_gpio_np)
 		voltage_gpio = read_gpio(volt_gpio_np);
 
+	of_node_put(volt_gpio_np);
 	pvr = mfspr(SPRN_PVR);
 	has_cpu_l2lve = !((pvr & 0xf00) == 0x100);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/cpufreq/ppc_cbe_cpufreq.c linux-libre-5.1.21-gnu/drivers/cpufreq/ppc_cbe_cpufreq.c
--- linux-libre-5.1-gnu/drivers/cpufreq/ppc_cbe_cpufreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/cpufreq/ppc_cbe_cpufreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -86,6 +86,7 @@ static int cbe_cpufreq_cpu_init(struct c
 	if (!cbe_get_cpu_pmd_regs(policy->cpu) ||
 	    !cbe_get_cpu_mic_tm_regs(policy->cpu)) {
 		pr_info("invalid CBE regs pointers for cpufreq\n");
+		of_node_put(cpu);
 		return -EINVAL;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/amcc/crypto4xx_alg.c linux-libre-5.1.21-gnu/drivers/crypto/amcc/crypto4xx_alg.c
--- linux-libre-5.1-gnu/drivers/crypto/amcc/crypto4xx_alg.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/amcc/crypto4xx_alg.c	2019-07-28 02:28:39.000000000 -0400
@@ -76,12 +76,16 @@ static void set_dynamic_sa_command_1(str
 }
 
 static inline int crypto4xx_crypt(struct skcipher_request *req,
-				  const unsigned int ivlen, bool decrypt)
+				  const unsigned int ivlen, bool decrypt,
+				  bool check_blocksize)
 {
 	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
 	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);
 	__le32 iv[AES_IV_SIZE];
 
+	if (check_blocksize && !IS_ALIGNED(req->cryptlen, AES_BLOCK_SIZE))
+		return -EINVAL;
+
 	if (ivlen)
 		crypto4xx_memcpy_to_le32(iv, req->iv, ivlen);
 
@@ -90,24 +94,34 @@ static inline int crypto4xx_crypt(struct
 		ctx->sa_len, 0, NULL);
 }
 
-int crypto4xx_encrypt_noiv(struct skcipher_request *req)
+int crypto4xx_encrypt_noiv_block(struct skcipher_request *req)
 {
-	return crypto4xx_crypt(req, 0, false);
+	return crypto4xx_crypt(req, 0, false, true);
 }
 
-int crypto4xx_encrypt_iv(struct skcipher_request *req)
+int crypto4xx_encrypt_iv_stream(struct skcipher_request *req)
 {
-	return crypto4xx_crypt(req, AES_IV_SIZE, false);
+	return crypto4xx_crypt(req, AES_IV_SIZE, false, false);
 }
 
-int crypto4xx_decrypt_noiv(struct skcipher_request *req)
+int crypto4xx_decrypt_noiv_block(struct skcipher_request *req)
 {
-	return crypto4xx_crypt(req, 0, true);
+	return crypto4xx_crypt(req, 0, true, true);
 }
 
-int crypto4xx_decrypt_iv(struct skcipher_request *req)
+int crypto4xx_decrypt_iv_stream(struct skcipher_request *req)
 {
-	return crypto4xx_crypt(req, AES_IV_SIZE, true);
+	return crypto4xx_crypt(req, AES_IV_SIZE, true, false);
+}
+
+int crypto4xx_encrypt_iv_block(struct skcipher_request *req)
+{
+	return crypto4xx_crypt(req, AES_IV_SIZE, false, true);
+}
+
+int crypto4xx_decrypt_iv_block(struct skcipher_request *req)
+{
+	return crypto4xx_crypt(req, AES_IV_SIZE, true, true);
 }
 
 /**
@@ -141,9 +155,10 @@ static int crypto4xx_setkey_aes(struct c
 	/* Setup SA */
 	sa = ctx->sa_in;
 
-	set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, (cm == CRYPTO_MODE_CBC ?
-				 SA_SAVE_IV : SA_NOT_SAVE_IV),
-				 SA_LOAD_HASH_FROM_SA, SA_LOAD_IV_FROM_STATE,
+	set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, (cm == CRYPTO_MODE_ECB ?
+				 SA_NOT_SAVE_IV : SA_SAVE_IV),
+				 SA_NOT_LOAD_HASH, (cm == CRYPTO_MODE_ECB ?
+				 SA_LOAD_IV_FROM_SA : SA_LOAD_IV_FROM_STATE),
 				 SA_NO_HEADER_PROC, SA_HASH_ALG_NULL,
 				 SA_CIPHER_ALG_AES, SA_PAD_TYPE_ZERO,
 				 SA_OP_GROUP_BASIC, SA_OPCODE_DECRYPT,
@@ -162,6 +177,11 @@ static int crypto4xx_setkey_aes(struct c
 	memcpy(ctx->sa_out, ctx->sa_in, ctx->sa_len * 4);
 	sa = ctx->sa_out;
 	sa->sa_command_0.bf.dir = DIR_OUTBOUND;
+	/*
+	 * SA_OPCODE_ENCRYPT is the same value as SA_OPCODE_DECRYPT.
+	 * it's the DIR_(IN|OUT)BOUND that matters
+	 */
+	sa->sa_command_0.bf.opcode = SA_OPCODE_ENCRYPT;
 
 	return 0;
 }
@@ -272,8 +292,8 @@ crypto4xx_ctr_crypt(struct skcipher_requ
 		return ret;
 	}
 
-	return encrypt ? crypto4xx_encrypt_iv(req)
-		       : crypto4xx_decrypt_iv(req);
+	return encrypt ? crypto4xx_encrypt_iv_stream(req)
+		       : crypto4xx_decrypt_iv_stream(req);
 }
 
 static int crypto4xx_sk_setup_fallback(struct crypto4xx_ctx *ctx,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/amcc/crypto4xx_core.c linux-libre-5.1.21-gnu/drivers/crypto/amcc/crypto4xx_core.c
--- linux-libre-5.1-gnu/drivers/crypto/amcc/crypto4xx_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/amcc/crypto4xx_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -714,7 +714,23 @@ int crypto4xx_build_pd(struct crypto_asy
 	size_t offset_to_sr_ptr;
 	u32 gd_idx = 0;
 	int tmp;
-	bool is_busy;
+	bool is_busy, force_sd;
+
+	/*
+	 * There's a very subtile/disguised "bug" in the hardware that
+	 * gets indirectly mentioned in 18.1.3.5 Encryption/Decryption
+	 * of the hardware spec:
+	 * *drum roll* the AES/(T)DES OFB and CFB modes are listed as
+	 * operation modes for >>> "Block ciphers" <<<.
+	 *
+	 * To workaround this issue and stop the hardware from causing
+	 * "overran dst buffer" on crypttexts that are not a multiple
+	 * of 16 (AES_BLOCK_SIZE), we force the driver to use the
+	 * scatter buffers.
+	 */
+	force_sd = (req_sa->sa_command_1.bf.crypto_mode9_8 == CRYPTO_MODE_CFB
+		|| req_sa->sa_command_1.bf.crypto_mode9_8 == CRYPTO_MODE_OFB)
+		&& (datalen % AES_BLOCK_SIZE);
 
 	/* figure how many gd are needed */
 	tmp = sg_nents_for_len(src, assoclen + datalen);
@@ -732,7 +748,7 @@ int crypto4xx_build_pd(struct crypto_asy
 	}
 
 	/* figure how many sd are needed */
-	if (sg_is_last(dst)) {
+	if (sg_is_last(dst) && force_sd == false) {
 		num_sd = 0;
 	} else {
 		if (datalen > PPC4XX_SD_BUFFER_SIZE) {
@@ -807,9 +823,10 @@ int crypto4xx_build_pd(struct crypto_asy
 	pd->sa_len = sa_len;
 
 	pd_uinfo = &dev->pdr_uinfo[pd_entry];
-	pd_uinfo->async_req = req;
 	pd_uinfo->num_gd = num_gd;
 	pd_uinfo->num_sd = num_sd;
+	pd_uinfo->dest_va = dst;
+	pd_uinfo->async_req = req;
 
 	if (iv_len)
 		memcpy(pd_uinfo->sr_va->save_iv, iv, iv_len);
@@ -828,7 +845,6 @@ int crypto4xx_build_pd(struct crypto_asy
 		/* get first gd we are going to use */
 		gd_idx = fst_gd;
 		pd_uinfo->first_gd = fst_gd;
-		pd_uinfo->num_gd = num_gd;
 		gd = crypto4xx_get_gdp(dev, &gd_dma, gd_idx);
 		pd->src = gd_dma;
 		/* enable gather */
@@ -865,17 +881,14 @@ int crypto4xx_build_pd(struct crypto_asy
 		 * Indicate gather array is not used
 		 */
 		pd_uinfo->first_gd = 0xffffffff;
-		pd_uinfo->num_gd = 0;
 	}
-	if (sg_is_last(dst)) {
+	if (!num_sd) {
 		/*
 		 * we know application give us dst a whole piece of memory
 		 * no need to use scatter ring.
 		 */
 		pd_uinfo->using_sd = 0;
 		pd_uinfo->first_sd = 0xffffffff;
-		pd_uinfo->num_sd = 0;
-		pd_uinfo->dest_va = dst;
 		sa->sa_command_0.bf.scatter = 0;
 		pd->dest = (u32)dma_map_page(dev->core_dev->device,
 					     sg_page(dst), dst->offset,
@@ -889,9 +902,7 @@ int crypto4xx_build_pd(struct crypto_asy
 		nbytes = datalen;
 		sa->sa_command_0.bf.scatter = 1;
 		pd_uinfo->using_sd = 1;
-		pd_uinfo->dest_va = dst;
 		pd_uinfo->first_sd = fst_sd;
-		pd_uinfo->num_sd = num_sd;
 		sd = crypto4xx_get_sdp(dev, &sd_dma, sd_idx);
 		pd->dest = sd_dma;
 		/* setup scatter descriptor */
@@ -1215,8 +1226,8 @@ static struct crypto4xx_alg_common crypt
 		.max_keysize = AES_MAX_KEY_SIZE,
 		.ivsize	= AES_IV_SIZE,
 		.setkey = crypto4xx_setkey_aes_cbc,
-		.encrypt = crypto4xx_encrypt_iv,
-		.decrypt = crypto4xx_decrypt_iv,
+		.encrypt = crypto4xx_encrypt_iv_block,
+		.decrypt = crypto4xx_decrypt_iv_block,
 		.init = crypto4xx_sk_init,
 		.exit = crypto4xx_sk_exit,
 	} },
@@ -1227,7 +1238,7 @@ static struct crypto4xx_alg_common crypt
 			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,
 			.cra_flags = CRYPTO_ALG_ASYNC |
 				CRYPTO_ALG_KERN_DRIVER_ONLY,
-			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_blocksize = 1,
 			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
 			.cra_module = THIS_MODULE,
 		},
@@ -1235,8 +1246,8 @@ static struct crypto4xx_alg_common crypt
 		.max_keysize = AES_MAX_KEY_SIZE,
 		.ivsize	= AES_IV_SIZE,
 		.setkey	= crypto4xx_setkey_aes_cfb,
-		.encrypt = crypto4xx_encrypt_iv,
-		.decrypt = crypto4xx_decrypt_iv,
+		.encrypt = crypto4xx_encrypt_iv_stream,
+		.decrypt = crypto4xx_decrypt_iv_stream,
 		.init = crypto4xx_sk_init,
 		.exit = crypto4xx_sk_exit,
 	} },
@@ -1248,7 +1259,7 @@ static struct crypto4xx_alg_common crypt
 			.cra_flags = CRYPTO_ALG_NEED_FALLBACK |
 				CRYPTO_ALG_ASYNC |
 				CRYPTO_ALG_KERN_DRIVER_ONLY,
-			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_blocksize = 1,
 			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
 			.cra_module = THIS_MODULE,
 		},
@@ -1268,7 +1279,7 @@ static struct crypto4xx_alg_common crypt
 			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,
 			.cra_flags = CRYPTO_ALG_ASYNC |
 				CRYPTO_ALG_KERN_DRIVER_ONLY,
-			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_blocksize = 1,
 			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
 			.cra_module = THIS_MODULE,
 		},
@@ -1295,8 +1306,8 @@ static struct crypto4xx_alg_common crypt
 		.min_keysize = AES_MIN_KEY_SIZE,
 		.max_keysize = AES_MAX_KEY_SIZE,
 		.setkey	= crypto4xx_setkey_aes_ecb,
-		.encrypt = crypto4xx_encrypt_noiv,
-		.decrypt = crypto4xx_decrypt_noiv,
+		.encrypt = crypto4xx_encrypt_noiv_block,
+		.decrypt = crypto4xx_decrypt_noiv_block,
 		.init = crypto4xx_sk_init,
 		.exit = crypto4xx_sk_exit,
 	} },
@@ -1307,7 +1318,7 @@ static struct crypto4xx_alg_common crypt
 			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,
 			.cra_flags = CRYPTO_ALG_ASYNC |
 				CRYPTO_ALG_KERN_DRIVER_ONLY,
-			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_blocksize = 1,
 			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
 			.cra_module = THIS_MODULE,
 		},
@@ -1315,8 +1326,8 @@ static struct crypto4xx_alg_common crypt
 		.max_keysize = AES_MAX_KEY_SIZE,
 		.ivsize	= AES_IV_SIZE,
 		.setkey	= crypto4xx_setkey_aes_ofb,
-		.encrypt = crypto4xx_encrypt_iv,
-		.decrypt = crypto4xx_decrypt_iv,
+		.encrypt = crypto4xx_encrypt_iv_stream,
+		.decrypt = crypto4xx_decrypt_iv_stream,
 		.init = crypto4xx_sk_init,
 		.exit = crypto4xx_sk_exit,
 	} },
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/amcc/crypto4xx_core.h linux-libre-5.1.21-gnu/drivers/crypto/amcc/crypto4xx_core.h
--- linux-libre-5.1-gnu/drivers/crypto/amcc/crypto4xx_core.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/amcc/crypto4xx_core.h	2019-07-28 02:28:39.000000000 -0400
@@ -183,10 +183,12 @@ int crypto4xx_setkey_rfc3686(struct cryp
 			     const u8 *key, unsigned int keylen);
 int crypto4xx_encrypt_ctr(struct skcipher_request *req);
 int crypto4xx_decrypt_ctr(struct skcipher_request *req);
-int crypto4xx_encrypt_iv(struct skcipher_request *req);
-int crypto4xx_decrypt_iv(struct skcipher_request *req);
-int crypto4xx_encrypt_noiv(struct skcipher_request *req);
-int crypto4xx_decrypt_noiv(struct skcipher_request *req);
+int crypto4xx_encrypt_iv_stream(struct skcipher_request *req);
+int crypto4xx_decrypt_iv_stream(struct skcipher_request *req);
+int crypto4xx_encrypt_iv_block(struct skcipher_request *req);
+int crypto4xx_decrypt_iv_block(struct skcipher_request *req);
+int crypto4xx_encrypt_noiv_block(struct skcipher_request *req);
+int crypto4xx_decrypt_noiv_block(struct skcipher_request *req);
 int crypto4xx_rfc3686_encrypt(struct skcipher_request *req);
 int crypto4xx_rfc3686_decrypt(struct skcipher_request *req);
 int crypto4xx_sha1_alg_init(struct crypto_tfm *tfm);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/amcc/crypto4xx_trng.c linux-libre-5.1.21-gnu/drivers/crypto/amcc/crypto4xx_trng.c
--- linux-libre-5.1-gnu/drivers/crypto/amcc/crypto4xx_trng.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/amcc/crypto4xx_trng.c	2019-07-28 02:28:39.000000000 -0400
@@ -111,7 +111,6 @@ void ppc4xx_trng_probe(struct crypto4xx_
 	return;
 
 err_out:
-	of_node_put(trng);
 	iounmap(dev->trng_base);
 	kfree(rng);
 	dev->trng_base = NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/caam/caamalg.c linux-libre-5.1.21-gnu/drivers/crypto/caam/caamalg.c
--- linux-libre-5.1-gnu/drivers/crypto/caam/caamalg.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/caam/caamalg.c	2019-07-28 02:28:39.000000000 -0400
@@ -965,6 +965,7 @@ static void skcipher_encrypt_done(struct
 	struct skcipher_request *req = context;
 	struct skcipher_edesc *edesc;
 	struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
+	struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
 	int ivsize = crypto_skcipher_ivsize(skcipher);
 
 #ifdef DEBUG
@@ -989,9 +990,9 @@ static void skcipher_encrypt_done(struct
 
 	/*
 	 * The crypto API expects us to set the IV (req->iv) to the last
-	 * ciphertext block. This is used e.g. by the CTS mode.
+	 * ciphertext block when running in CBC mode.
 	 */
-	if (ivsize)
+	if ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == OP_ALG_AAI_CBC)
 		scatterwalk_map_and_copy(req->iv, req->dst, req->cryptlen -
 					 ivsize, ivsize, 0);
 
@@ -1072,6 +1073,7 @@ static void init_aead_job(struct aead_re
 	if (unlikely(req->src != req->dst)) {
 		if (!edesc->mapped_dst_nents) {
 			dst_dma = 0;
+			out_options = 0;
 		} else if (edesc->mapped_dst_nents == 1) {
 			dst_dma = sg_dma_address(req->dst);
 			out_options = 0;
@@ -1808,9 +1810,9 @@ static int skcipher_decrypt(struct skcip
 
 	/*
 	 * The crypto API expects us to set the IV (req->iv) to the last
-	 * ciphertext block.
+	 * ciphertext block when running in CBC mode.
 	 */
-	if (ivsize)
+	if ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == OP_ALG_AAI_CBC)
 		scatterwalk_map_and_copy(req->iv, req->src, req->cryptlen -
 					 ivsize, ivsize, 0);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/caam/caamalg_qi2.c linux-libre-5.1.21-gnu/drivers/crypto/caam/caamalg_qi2.c
--- linux-libre-5.1-gnu/drivers/crypto/caam/caamalg_qi2.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/caam/caamalg_qi2.c	2019-07-28 02:28:39.000000000 -0400
@@ -525,6 +525,14 @@ static struct aead_edesc *aead_edesc_all
 			dpaa2_fl_set_addr(out_fle, qm_sg_dma +
 					  (1 + !!ivsize) * sizeof(*sg_table));
 		}
+	} else if (!mapped_dst_nents) {
+		/*
+		 * crypto engine requires the output entry to be present when
+		 * "frame list" FD is used.
+		 * Since engine does not support FMT=2'b11 (unused entry type),
+		 * leaving out_fle zeroized is the best option.
+		 */
+		goto skip_out_fle;
 	} else if (mapped_dst_nents == 1) {
 		dpaa2_fl_set_format(out_fle, dpaa2_fl_single);
 		dpaa2_fl_set_addr(out_fle, sg_dma_address(req->dst));
@@ -536,6 +544,7 @@ static struct aead_edesc *aead_edesc_all
 
 	dpaa2_fl_set_len(out_fle, out_len);
 
+skip_out_fle:
 	return edesc;
 }
 
@@ -2854,6 +2863,7 @@ struct caam_hash_state {
 	struct caam_request caam_req;
 	dma_addr_t buf_dma;
 	dma_addr_t ctx_dma;
+	int ctx_dma_len;
 	u8 buf_0[CAAM_MAX_HASH_BLOCK_SIZE] ____cacheline_aligned;
 	int buflen_0;
 	u8 buf_1[CAAM_MAX_HASH_BLOCK_SIZE] ____cacheline_aligned;
@@ -2927,6 +2937,7 @@ static inline int ctx_map_to_qm_sg(struc
 				   struct caam_hash_state *state, int ctx_len,
 				   struct dpaa2_sg_entry *qm_sg, u32 flag)
 {
+	state->ctx_dma_len = ctx_len;
 	state->ctx_dma = dma_map_single(dev, state->caam_ctx, ctx_len, flag);
 	if (dma_mapping_error(dev, state->ctx_dma)) {
 		dev_err(dev, "unable to map ctx\n");
@@ -3018,13 +3029,13 @@ static void split_key_sh_done(void *cbk_
 }
 
 /* Digest hash size if it is too large */
-static int hash_digest_key(struct caam_hash_ctx *ctx, const u8 *key_in,
-			   u32 *keylen, u8 *key_out, u32 digestsize)
+static int hash_digest_key(struct caam_hash_ctx *ctx, u32 *keylen, u8 *key,
+			   u32 digestsize)
 {
 	struct caam_request *req_ctx;
 	u32 *desc;
 	struct split_key_sh_result result;
-	dma_addr_t src_dma, dst_dma;
+	dma_addr_t key_dma;
 	struct caam_flc *flc;
 	dma_addr_t flc_dma;
 	int ret = -ENOMEM;
@@ -3041,17 +3052,10 @@ static int hash_digest_key(struct caam_h
 	if (!flc)
 		goto err_flc;
 
-	src_dma = dma_map_single(ctx->dev, (void *)key_in, *keylen,
-				 DMA_TO_DEVICE);
-	if (dma_mapping_error(ctx->dev, src_dma)) {
-		dev_err(ctx->dev, "unable to map key input memory\n");
-		goto err_src_dma;
-	}
-	dst_dma = dma_map_single(ctx->dev, (void *)key_out, digestsize,
-				 DMA_FROM_DEVICE);
-	if (dma_mapping_error(ctx->dev, dst_dma)) {
-		dev_err(ctx->dev, "unable to map key output memory\n");
-		goto err_dst_dma;
+	key_dma = dma_map_single(ctx->dev, key, *keylen, DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(ctx->dev, key_dma)) {
+		dev_err(ctx->dev, "unable to map key memory\n");
+		goto err_key_dma;
 	}
 
 	desc = flc->sh_desc;
@@ -3076,14 +3080,14 @@ static int hash_digest_key(struct caam_h
 
 	dpaa2_fl_set_final(in_fle, true);
 	dpaa2_fl_set_format(in_fle, dpaa2_fl_single);
-	dpaa2_fl_set_addr(in_fle, src_dma);
+	dpaa2_fl_set_addr(in_fle, key_dma);
 	dpaa2_fl_set_len(in_fle, *keylen);
 	dpaa2_fl_set_format(out_fle, dpaa2_fl_single);
-	dpaa2_fl_set_addr(out_fle, dst_dma);
+	dpaa2_fl_set_addr(out_fle, key_dma);
 	dpaa2_fl_set_len(out_fle, digestsize);
 
 	print_hex_dump_debug("key_in@" __stringify(__LINE__)": ",
-			     DUMP_PREFIX_ADDRESS, 16, 4, key_in, *keylen, 1);
+			     DUMP_PREFIX_ADDRESS, 16, 4, key, *keylen, 1);
 	print_hex_dump_debug("shdesc@" __stringify(__LINE__)": ",
 			     DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
 			     1);
@@ -3103,17 +3107,15 @@ static int hash_digest_key(struct caam_h
 		wait_for_completion(&result.completion);
 		ret = result.err;
 		print_hex_dump_debug("digested key@" __stringify(__LINE__)": ",
-				     DUMP_PREFIX_ADDRESS, 16, 4, key_in,
+				     DUMP_PREFIX_ADDRESS, 16, 4, key,
 				     digestsize, 1);
 	}
 
 	dma_unmap_single(ctx->dev, flc_dma, sizeof(flc->flc) + desc_bytes(desc),
 			 DMA_TO_DEVICE);
 err_flc_dma:
-	dma_unmap_single(ctx->dev, dst_dma, digestsize, DMA_FROM_DEVICE);
-err_dst_dma:
-	dma_unmap_single(ctx->dev, src_dma, *keylen, DMA_TO_DEVICE);
-err_src_dma:
+	dma_unmap_single(ctx->dev, key_dma, *keylen, DMA_BIDIRECTIONAL);
+err_key_dma:
 	kfree(flc);
 err_flc:
 	kfree(req_ctx);
@@ -3135,12 +3137,10 @@ static int ahash_setkey(struct crypto_ah
 	dev_dbg(ctx->dev, "keylen %d blocksize %d\n", keylen, blocksize);
 
 	if (keylen > blocksize) {
-		hashed_key = kmalloc_array(digestsize, sizeof(*hashed_key),
-					   GFP_KERNEL | GFP_DMA);
+		hashed_key = kmemdup(key, keylen, GFP_KERNEL | GFP_DMA);
 		if (!hashed_key)
 			return -ENOMEM;
-		ret = hash_digest_key(ctx, key, &keylen, hashed_key,
-				      digestsize);
+		ret = hash_digest_key(ctx, &keylen, hashed_key, digestsize);
 		if (ret)
 			goto bad_free_key;
 		key = hashed_key;
@@ -3165,14 +3165,12 @@ bad_free_key:
 }
 
 static inline void ahash_unmap(struct device *dev, struct ahash_edesc *edesc,
-			       struct ahash_request *req, int dst_len)
+			       struct ahash_request *req)
 {
 	struct caam_hash_state *state = ahash_request_ctx(req);
 
 	if (edesc->src_nents)
 		dma_unmap_sg(dev, req->src, edesc->src_nents, DMA_TO_DEVICE);
-	if (edesc->dst_dma)
-		dma_unmap_single(dev, edesc->dst_dma, dst_len, DMA_FROM_DEVICE);
 
 	if (edesc->qm_sg_bytes)
 		dma_unmap_single(dev, edesc->qm_sg_dma, edesc->qm_sg_bytes,
@@ -3187,18 +3185,15 @@ static inline void ahash_unmap(struct de
 
 static inline void ahash_unmap_ctx(struct device *dev,
 				   struct ahash_edesc *edesc,
-				   struct ahash_request *req, int dst_len,
-				   u32 flag)
+				   struct ahash_request *req, u32 flag)
 {
-	struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
-	struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
 	struct caam_hash_state *state = ahash_request_ctx(req);
 
 	if (state->ctx_dma) {
-		dma_unmap_single(dev, state->ctx_dma, ctx->ctx_len, flag);
+		dma_unmap_single(dev, state->ctx_dma, state->ctx_dma_len, flag);
 		state->ctx_dma = 0;
 	}
-	ahash_unmap(dev, edesc, req, dst_len);
+	ahash_unmap(dev, edesc, req);
 }
 
 static void ahash_done(void *cbk_ctx, u32 status)
@@ -3219,16 +3214,13 @@ static void ahash_done(void *cbk_ctx, u3
 		ecode = -EIO;
 	}
 
-	ahash_unmap(ctx->dev, edesc, req, digestsize);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE);
+	memcpy(req->result, state->caam_ctx, digestsize);
 	qi_cache_free(edesc);
 
 	print_hex_dump_debug("ctx@" __stringify(__LINE__)": ",
 			     DUMP_PREFIX_ADDRESS, 16, 4, state->caam_ctx,
 			     ctx->ctx_len, 1);
-	if (req->result)
-		print_hex_dump_debug("result@" __stringify(__LINE__)": ",
-				     DUMP_PREFIX_ADDRESS, 16, 4, req->result,
-				     digestsize, 1);
 
 	req->base.complete(&req->base, ecode);
 }
@@ -3250,7 +3242,7 @@ static void ahash_done_bi(void *cbk_ctx,
 		ecode = -EIO;
 	}
 
-	ahash_unmap_ctx(ctx->dev, edesc, req, ctx->ctx_len, DMA_BIDIRECTIONAL);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL);
 	switch_buf(state);
 	qi_cache_free(edesc);
 
@@ -3283,16 +3275,13 @@ static void ahash_done_ctx_src(void *cbk
 		ecode = -EIO;
 	}
 
-	ahash_unmap_ctx(ctx->dev, edesc, req, digestsize, DMA_TO_DEVICE);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL);
+	memcpy(req->result, state->caam_ctx, digestsize);
 	qi_cache_free(edesc);
 
 	print_hex_dump_debug("ctx@" __stringify(__LINE__)": ",
 			     DUMP_PREFIX_ADDRESS, 16, 4, state->caam_ctx,
 			     ctx->ctx_len, 1);
-	if (req->result)
-		print_hex_dump_debug("result@" __stringify(__LINE__)": ",
-				     DUMP_PREFIX_ADDRESS, 16, 4, req->result,
-				     digestsize, 1);
 
 	req->base.complete(&req->base, ecode);
 }
@@ -3314,7 +3303,7 @@ static void ahash_done_ctx_dst(void *cbk
 		ecode = -EIO;
 	}
 
-	ahash_unmap_ctx(ctx->dev, edesc, req, ctx->ctx_len, DMA_FROM_DEVICE);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE);
 	switch_buf(state);
 	qi_cache_free(edesc);
 
@@ -3452,7 +3441,7 @@ static int ahash_update_ctx(struct ahash
 
 	return ret;
 unmap_ctx:
-	ahash_unmap_ctx(ctx->dev, edesc, req, ctx->ctx_len, DMA_BIDIRECTIONAL);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL);
 	qi_cache_free(edesc);
 	return ret;
 }
@@ -3484,7 +3473,7 @@ static int ahash_final_ctx(struct ahash_
 	sg_table = &edesc->sgt[0];
 
 	ret = ctx_map_to_qm_sg(ctx->dev, state, ctx->ctx_len, sg_table,
-			       DMA_TO_DEVICE);
+			       DMA_BIDIRECTIONAL);
 	if (ret)
 		goto unmap_ctx;
 
@@ -3503,22 +3492,13 @@ static int ahash_final_ctx(struct ahash_
 	}
 	edesc->qm_sg_bytes = qm_sg_bytes;
 
-	edesc->dst_dma = dma_map_single(ctx->dev, req->result, digestsize,
-					DMA_FROM_DEVICE);
-	if (dma_mapping_error(ctx->dev, edesc->dst_dma)) {
-		dev_err(ctx->dev, "unable to map dst\n");
-		edesc->dst_dma = 0;
-		ret = -ENOMEM;
-		goto unmap_ctx;
-	}
-
 	memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt));
 	dpaa2_fl_set_final(in_fle, true);
 	dpaa2_fl_set_format(in_fle, dpaa2_fl_sg);
 	dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma);
 	dpaa2_fl_set_len(in_fle, ctx->ctx_len + buflen);
 	dpaa2_fl_set_format(out_fle, dpaa2_fl_single);
-	dpaa2_fl_set_addr(out_fle, edesc->dst_dma);
+	dpaa2_fl_set_addr(out_fle, state->ctx_dma);
 	dpaa2_fl_set_len(out_fle, digestsize);
 
 	req_ctx->flc = &ctx->flc[FINALIZE];
@@ -3533,7 +3513,7 @@ static int ahash_final_ctx(struct ahash_
 		return ret;
 
 unmap_ctx:
-	ahash_unmap_ctx(ctx->dev, edesc, req, digestsize, DMA_FROM_DEVICE);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL);
 	qi_cache_free(edesc);
 	return ret;
 }
@@ -3586,7 +3566,7 @@ static int ahash_finup_ctx(struct ahash_
 	sg_table = &edesc->sgt[0];
 
 	ret = ctx_map_to_qm_sg(ctx->dev, state, ctx->ctx_len, sg_table,
-			       DMA_TO_DEVICE);
+			       DMA_BIDIRECTIONAL);
 	if (ret)
 		goto unmap_ctx;
 
@@ -3605,22 +3585,13 @@ static int ahash_finup_ctx(struct ahash_
 	}
 	edesc->qm_sg_bytes = qm_sg_bytes;
 
-	edesc->dst_dma = dma_map_single(ctx->dev, req->result, digestsize,
-					DMA_FROM_DEVICE);
-	if (dma_mapping_error(ctx->dev, edesc->dst_dma)) {
-		dev_err(ctx->dev, "unable to map dst\n");
-		edesc->dst_dma = 0;
-		ret = -ENOMEM;
-		goto unmap_ctx;
-	}
-
 	memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt));
 	dpaa2_fl_set_final(in_fle, true);
 	dpaa2_fl_set_format(in_fle, dpaa2_fl_sg);
 	dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma);
 	dpaa2_fl_set_len(in_fle, ctx->ctx_len + buflen + req->nbytes);
 	dpaa2_fl_set_format(out_fle, dpaa2_fl_single);
-	dpaa2_fl_set_addr(out_fle, edesc->dst_dma);
+	dpaa2_fl_set_addr(out_fle, state->ctx_dma);
 	dpaa2_fl_set_len(out_fle, digestsize);
 
 	req_ctx->flc = &ctx->flc[FINALIZE];
@@ -3635,7 +3606,7 @@ static int ahash_finup_ctx(struct ahash_
 		return ret;
 
 unmap_ctx:
-	ahash_unmap_ctx(ctx->dev, edesc, req, digestsize, DMA_FROM_DEVICE);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL);
 	qi_cache_free(edesc);
 	return ret;
 }
@@ -3704,18 +3675,19 @@ static int ahash_digest(struct ahash_req
 		dpaa2_fl_set_addr(in_fle, sg_dma_address(req->src));
 	}
 
-	edesc->dst_dma = dma_map_single(ctx->dev, req->result, digestsize,
+	state->ctx_dma_len = digestsize;
+	state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx, digestsize,
 					DMA_FROM_DEVICE);
-	if (dma_mapping_error(ctx->dev, edesc->dst_dma)) {
-		dev_err(ctx->dev, "unable to map dst\n");
-		edesc->dst_dma = 0;
+	if (dma_mapping_error(ctx->dev, state->ctx_dma)) {
+		dev_err(ctx->dev, "unable to map ctx\n");
+		state->ctx_dma = 0;
 		goto unmap;
 	}
 
 	dpaa2_fl_set_final(in_fle, true);
 	dpaa2_fl_set_len(in_fle, req->nbytes);
 	dpaa2_fl_set_format(out_fle, dpaa2_fl_single);
-	dpaa2_fl_set_addr(out_fle, edesc->dst_dma);
+	dpaa2_fl_set_addr(out_fle, state->ctx_dma);
 	dpaa2_fl_set_len(out_fle, digestsize);
 
 	req_ctx->flc = &ctx->flc[DIGEST];
@@ -3729,7 +3701,7 @@ static int ahash_digest(struct ahash_req
 		return ret;
 
 unmap:
-	ahash_unmap(ctx->dev, edesc, req, digestsize);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE);
 	qi_cache_free(edesc);
 	return ret;
 }
@@ -3755,27 +3727,39 @@ static int ahash_final_no_ctx(struct aha
 	if (!edesc)
 		return ret;
 
-	state->buf_dma = dma_map_single(ctx->dev, buf, buflen, DMA_TO_DEVICE);
-	if (dma_mapping_error(ctx->dev, state->buf_dma)) {
-		dev_err(ctx->dev, "unable to map src\n");
-		goto unmap;
+	if (buflen) {
+		state->buf_dma = dma_map_single(ctx->dev, buf, buflen,
+						DMA_TO_DEVICE);
+		if (dma_mapping_error(ctx->dev, state->buf_dma)) {
+			dev_err(ctx->dev, "unable to map src\n");
+			goto unmap;
+		}
 	}
 
-	edesc->dst_dma = dma_map_single(ctx->dev, req->result, digestsize,
+	state->ctx_dma_len = digestsize;
+	state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx, digestsize,
 					DMA_FROM_DEVICE);
-	if (dma_mapping_error(ctx->dev, edesc->dst_dma)) {
-		dev_err(ctx->dev, "unable to map dst\n");
-		edesc->dst_dma = 0;
+	if (dma_mapping_error(ctx->dev, state->ctx_dma)) {
+		dev_err(ctx->dev, "unable to map ctx\n");
+		state->ctx_dma = 0;
 		goto unmap;
 	}
 
 	memset(&req_ctx->fd_flt, 0, sizeof(req_ctx->fd_flt));
 	dpaa2_fl_set_final(in_fle, true);
-	dpaa2_fl_set_format(in_fle, dpaa2_fl_single);
-	dpaa2_fl_set_addr(in_fle, state->buf_dma);
-	dpaa2_fl_set_len(in_fle, buflen);
+	/*
+	 * crypto engine requires the input entry to be present when
+	 * "frame list" FD is used.
+	 * Since engine does not support FMT=2'b11 (unused entry type), leaving
+	 * in_fle zeroized (except for "Final" flag) is the best option.
+	 */
+	if (buflen) {
+		dpaa2_fl_set_format(in_fle, dpaa2_fl_single);
+		dpaa2_fl_set_addr(in_fle, state->buf_dma);
+		dpaa2_fl_set_len(in_fle, buflen);
+	}
 	dpaa2_fl_set_format(out_fle, dpaa2_fl_single);
-	dpaa2_fl_set_addr(out_fle, edesc->dst_dma);
+	dpaa2_fl_set_addr(out_fle, state->ctx_dma);
 	dpaa2_fl_set_len(out_fle, digestsize);
 
 	req_ctx->flc = &ctx->flc[DIGEST];
@@ -3790,7 +3774,7 @@ static int ahash_final_no_ctx(struct aha
 		return ret;
 
 unmap:
-	ahash_unmap(ctx->dev, edesc, req, digestsize);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE);
 	qi_cache_free(edesc);
 	return ret;
 }
@@ -3870,6 +3854,7 @@ static int ahash_update_no_ctx(struct ah
 		}
 		edesc->qm_sg_bytes = qm_sg_bytes;
 
+		state->ctx_dma_len = ctx->ctx_len;
 		state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx,
 						ctx->ctx_len, DMA_FROM_DEVICE);
 		if (dma_mapping_error(ctx->dev, state->ctx_dma)) {
@@ -3918,7 +3903,7 @@ static int ahash_update_no_ctx(struct ah
 
 	return ret;
 unmap_ctx:
-	ahash_unmap_ctx(ctx->dev, edesc, req, ctx->ctx_len, DMA_TO_DEVICE);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_TO_DEVICE);
 	qi_cache_free(edesc);
 	return ret;
 }
@@ -3983,11 +3968,12 @@ static int ahash_finup_no_ctx(struct aha
 	}
 	edesc->qm_sg_bytes = qm_sg_bytes;
 
-	edesc->dst_dma = dma_map_single(ctx->dev, req->result, digestsize,
+	state->ctx_dma_len = digestsize;
+	state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx, digestsize,
 					DMA_FROM_DEVICE);
-	if (dma_mapping_error(ctx->dev, edesc->dst_dma)) {
-		dev_err(ctx->dev, "unable to map dst\n");
-		edesc->dst_dma = 0;
+	if (dma_mapping_error(ctx->dev, state->ctx_dma)) {
+		dev_err(ctx->dev, "unable to map ctx\n");
+		state->ctx_dma = 0;
 		ret = -ENOMEM;
 		goto unmap;
 	}
@@ -3998,7 +3984,7 @@ static int ahash_finup_no_ctx(struct aha
 	dpaa2_fl_set_addr(in_fle, edesc->qm_sg_dma);
 	dpaa2_fl_set_len(in_fle, buflen + req->nbytes);
 	dpaa2_fl_set_format(out_fle, dpaa2_fl_single);
-	dpaa2_fl_set_addr(out_fle, edesc->dst_dma);
+	dpaa2_fl_set_addr(out_fle, state->ctx_dma);
 	dpaa2_fl_set_len(out_fle, digestsize);
 
 	req_ctx->flc = &ctx->flc[DIGEST];
@@ -4013,7 +3999,7 @@ static int ahash_finup_no_ctx(struct aha
 
 	return ret;
 unmap:
-	ahash_unmap(ctx->dev, edesc, req, digestsize);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE);
 	qi_cache_free(edesc);
 	return -ENOMEM;
 }
@@ -4100,6 +4086,7 @@ static int ahash_update_first(struct aha
 			scatterwalk_map_and_copy(next_buf, req->src, to_hash,
 						 *next_buflen, 0);
 
+		state->ctx_dma_len = ctx->ctx_len;
 		state->ctx_dma = dma_map_single(ctx->dev, state->caam_ctx,
 						ctx->ctx_len, DMA_FROM_DEVICE);
 		if (dma_mapping_error(ctx->dev, state->ctx_dma)) {
@@ -4143,7 +4130,7 @@ static int ahash_update_first(struct aha
 
 	return ret;
 unmap_ctx:
-	ahash_unmap_ctx(ctx->dev, edesc, req, ctx->ctx_len, DMA_TO_DEVICE);
+	ahash_unmap_ctx(ctx->dev, edesc, req, DMA_TO_DEVICE);
 	qi_cache_free(edesc);
 	return ret;
 }
@@ -4162,6 +4149,7 @@ static int ahash_init(struct ahash_reque
 	state->final = ahash_final_no_ctx;
 
 	state->ctx_dma = 0;
+	state->ctx_dma_len = 0;
 	state->current_buf = 0;
 	state->buf_dma = 0;
 	state->buflen_0 = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/caam/caamalg_qi2.h linux-libre-5.1.21-gnu/drivers/crypto/caam/caamalg_qi2.h
--- linux-libre-5.1-gnu/drivers/crypto/caam/caamalg_qi2.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/caam/caamalg_qi2.h	2019-07-28 02:28:39.000000000 -0400
@@ -162,14 +162,12 @@ struct skcipher_edesc {
 
 /*
  * ahash_edesc - s/w-extended ahash descriptor
- * @dst_dma: I/O virtual address of req->result
  * @qm_sg_dma: I/O virtual address of h/w link table
  * @src_nents: number of segments in input scatterlist
  * @qm_sg_bytes: length of dma mapped qm_sg space
  * @sgt: pointer to h/w link table
  */
 struct ahash_edesc {
-	dma_addr_t dst_dma;
 	dma_addr_t qm_sg_dma;
 	int src_nents;
 	int qm_sg_bytes;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/caam/caamalg_qi.c linux-libre-5.1.21-gnu/drivers/crypto/caam/caamalg_qi.c
--- linux-libre-5.1-gnu/drivers/crypto/caam/caamalg_qi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/caam/caamalg_qi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1068,7 +1068,7 @@ static struct aead_edesc *aead_edesc_all
 			dma_to_qm_sg_one_ext(&fd_sgt[0], qm_sg_dma +
 					     (1 + !!ivsize) * sizeof(*sg_table),
 					     out_len, 0);
-	} else if (mapped_dst_nents == 1) {
+	} else if (mapped_dst_nents <= 1) {
 		dma_to_qm_sg_one(&fd_sgt[0], sg_dma_address(req->dst), out_len,
 				 0);
 	} else {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/caam/qi.c linux-libre-5.1.21-gnu/drivers/crypto/caam/qi.c
--- linux-libre-5.1-gnu/drivers/crypto/caam/qi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/caam/qi.c	2019-07-28 02:28:39.000000000 -0400
@@ -18,6 +18,7 @@
 #include "desc_constr.h"
 
 #define PREHDR_RSLS_SHIFT	31
+#define PREHDR_ABS		BIT(25)
 
 /*
  * Use a reasonable backlog of frames (per CPU) as congestion threshold,
@@ -346,6 +347,7 @@ int caam_drv_ctx_update(struct caam_drv_
 	 */
 	drv_ctx->prehdr[0] = cpu_to_caam32((1 << PREHDR_RSLS_SHIFT) |
 					   num_words);
+	drv_ctx->prehdr[1] = cpu_to_caam32(PREHDR_ABS);
 	memcpy(drv_ctx->sh_desc, sh_desc, desc_bytes(sh_desc));
 	dma_sync_single_for_device(qidev, drv_ctx->context_a,
 				   sizeof(drv_ctx->sh_desc) +
@@ -401,6 +403,7 @@ struct caam_drv_ctx *caam_drv_ctx_init(s
 	 */
 	drv_ctx->prehdr[0] = cpu_to_caam32((1 << PREHDR_RSLS_SHIFT) |
 					   num_words);
+	drv_ctx->prehdr[1] = cpu_to_caam32(PREHDR_ABS);
 	memcpy(drv_ctx->sh_desc, sh_desc, desc_bytes(sh_desc));
 	size = sizeof(drv_ctx->prehdr) + sizeof(drv_ctx->sh_desc);
 	hwdesc = dma_map_single(qidev, drv_ctx->prehdr, size,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccp/ccp-dev.c linux-libre-5.1.21-gnu/drivers/crypto/ccp/ccp-dev.c
--- linux-libre-5.1-gnu/drivers/crypto/ccp/ccp-dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccp/ccp-dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -35,56 +35,62 @@ struct ccp_tasklet_data {
 };
 
 /* Human-readable error strings */
+#define CCP_MAX_ERROR_CODE	64
 static char *ccp_error_codes[] = {
 	"",
-	"ERR 01: ILLEGAL_ENGINE",
-	"ERR 02: ILLEGAL_KEY_ID",
-	"ERR 03: ILLEGAL_FUNCTION_TYPE",
-	"ERR 04: ILLEGAL_FUNCTION_MODE",
-	"ERR 05: ILLEGAL_FUNCTION_ENCRYPT",
-	"ERR 06: ILLEGAL_FUNCTION_SIZE",
-	"ERR 07: Zlib_MISSING_INIT_EOM",
-	"ERR 08: ILLEGAL_FUNCTION_RSVD",
-	"ERR 09: ILLEGAL_BUFFER_LENGTH",
-	"ERR 10: VLSB_FAULT",
-	"ERR 11: ILLEGAL_MEM_ADDR",
-	"ERR 12: ILLEGAL_MEM_SEL",
-	"ERR 13: ILLEGAL_CONTEXT_ID",
-	"ERR 14: ILLEGAL_KEY_ADDR",
-	"ERR 15: 0xF Reserved",
-	"ERR 16: Zlib_ILLEGAL_MULTI_QUEUE",
-	"ERR 17: Zlib_ILLEGAL_JOBID_CHANGE",
-	"ERR 18: CMD_TIMEOUT",
-	"ERR 19: IDMA0_AXI_SLVERR",
-	"ERR 20: IDMA0_AXI_DECERR",
-	"ERR 21: 0x15 Reserved",
-	"ERR 22: IDMA1_AXI_SLAVE_FAULT",
-	"ERR 23: IDMA1_AIXI_DECERR",
-	"ERR 24: 0x18 Reserved",
-	"ERR 25: ZLIBVHB_AXI_SLVERR",
-	"ERR 26: ZLIBVHB_AXI_DECERR",
-	"ERR 27: 0x1B Reserved",
-	"ERR 27: ZLIB_UNEXPECTED_EOM",
-	"ERR 27: ZLIB_EXTRA_DATA",
-	"ERR 30: ZLIB_BTYPE",
-	"ERR 31: ZLIB_UNDEFINED_SYMBOL",
-	"ERR 32: ZLIB_UNDEFINED_DISTANCE_S",
-	"ERR 33: ZLIB_CODE_LENGTH_SYMBOL",
-	"ERR 34: ZLIB _VHB_ILLEGAL_FETCH",
-	"ERR 35: ZLIB_UNCOMPRESSED_LEN",
-	"ERR 36: ZLIB_LIMIT_REACHED",
-	"ERR 37: ZLIB_CHECKSUM_MISMATCH0",
-	"ERR 38: ODMA0_AXI_SLVERR",
-	"ERR 39: ODMA0_AXI_DECERR",
-	"ERR 40: 0x28 Reserved",
-	"ERR 41: ODMA1_AXI_SLVERR",
-	"ERR 42: ODMA1_AXI_DECERR",
-	"ERR 43: LSB_PARITY_ERR",
+	"ILLEGAL_ENGINE",
+	"ILLEGAL_KEY_ID",
+	"ILLEGAL_FUNCTION_TYPE",
+	"ILLEGAL_FUNCTION_MODE",
+	"ILLEGAL_FUNCTION_ENCRYPT",
+	"ILLEGAL_FUNCTION_SIZE",
+	"Zlib_MISSING_INIT_EOM",
+	"ILLEGAL_FUNCTION_RSVD",
+	"ILLEGAL_BUFFER_LENGTH",
+	"VLSB_FAULT",
+	"ILLEGAL_MEM_ADDR",
+	"ILLEGAL_MEM_SEL",
+	"ILLEGAL_CONTEXT_ID",
+	"ILLEGAL_KEY_ADDR",
+	"0xF Reserved",
+	"Zlib_ILLEGAL_MULTI_QUEUE",
+	"Zlib_ILLEGAL_JOBID_CHANGE",
+	"CMD_TIMEOUT",
+	"IDMA0_AXI_SLVERR",
+	"IDMA0_AXI_DECERR",
+	"0x15 Reserved",
+	"IDMA1_AXI_SLAVE_FAULT",
+	"IDMA1_AIXI_DECERR",
+	"0x18 Reserved",
+	"ZLIBVHB_AXI_SLVERR",
+	"ZLIBVHB_AXI_DECERR",
+	"0x1B Reserved",
+	"ZLIB_UNEXPECTED_EOM",
+	"ZLIB_EXTRA_DATA",
+	"ZLIB_BTYPE",
+	"ZLIB_UNDEFINED_SYMBOL",
+	"ZLIB_UNDEFINED_DISTANCE_S",
+	"ZLIB_CODE_LENGTH_SYMBOL",
+	"ZLIB _VHB_ILLEGAL_FETCH",
+	"ZLIB_UNCOMPRESSED_LEN",
+	"ZLIB_LIMIT_REACHED",
+	"ZLIB_CHECKSUM_MISMATCH0",
+	"ODMA0_AXI_SLVERR",
+	"ODMA0_AXI_DECERR",
+	"0x28 Reserved",
+	"ODMA1_AXI_SLVERR",
+	"ODMA1_AXI_DECERR",
 };
 
-void ccp_log_error(struct ccp_device *d, int e)
+void ccp_log_error(struct ccp_device *d, unsigned int e)
 {
-	dev_err(d->dev, "CCP error: %s (0x%x)\n", ccp_error_codes[e], e);
+	if (WARN_ON(e >= CCP_MAX_ERROR_CODE))
+		return;
+
+	if (e < ARRAY_SIZE(ccp_error_codes))
+		dev_err(d->dev, "CCP error %d: %s\n", e, ccp_error_codes[e]);
+	else
+		dev_err(d->dev, "CCP error %d: Unknown Error\n", e);
 }
 
 /* List of CCPs, CCP count, read-write access lock, and access functions
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccp/ccp-dev.h linux-libre-5.1.21-gnu/drivers/crypto/ccp/ccp-dev.h
--- linux-libre-5.1-gnu/drivers/crypto/ccp/ccp-dev.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccp/ccp-dev.h	2019-07-28 02:28:39.000000000 -0400
@@ -632,7 +632,7 @@ struct ccp5_desc {
 void ccp_add_device(struct ccp_device *ccp);
 void ccp_del_device(struct ccp_device *ccp);
 
-extern void ccp_log_error(struct ccp_device *, int);
+extern void ccp_log_error(struct ccp_device *, unsigned int);
 
 struct ccp_device *ccp_alloc_struct(struct sp_device *sp);
 bool ccp_queues_suspended(struct ccp_device *ccp);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccp/ccp-ops.c linux-libre-5.1.21-gnu/drivers/crypto/ccp/ccp-ops.c
--- linux-libre-5.1-gnu/drivers/crypto/ccp/ccp-ops.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccp/ccp-ops.c	2019-07-28 02:28:39.000000000 -0400
@@ -625,6 +625,7 @@ static int ccp_run_aes_gcm_cmd(struct cc
 
 	unsigned long long *final;
 	unsigned int dm_offset;
+	unsigned int jobid;
 	unsigned int ilen;
 	bool in_place = true; /* Default value */
 	int ret;
@@ -663,9 +664,11 @@ static int ccp_run_aes_gcm_cmd(struct cc
 		p_tag = scatterwalk_ffwd(sg_tag, p_inp, ilen);
 	}
 
+	jobid = CCP_NEW_JOBID(cmd_q->ccp);
+
 	memset(&op, 0, sizeof(op));
 	op.cmd_q = cmd_q;
-	op.jobid = CCP_NEW_JOBID(cmd_q->ccp);
+	op.jobid = jobid;
 	op.sb_key = cmd_q->sb_key; /* Pre-allocated */
 	op.sb_ctx = cmd_q->sb_ctx; /* Pre-allocated */
 	op.init = 1;
@@ -816,6 +819,13 @@ static int ccp_run_aes_gcm_cmd(struct cc
 	final[0] = cpu_to_be64(aes->aad_len * 8);
 	final[1] = cpu_to_be64(ilen * 8);
 
+	memset(&op, 0, sizeof(op));
+	op.cmd_q = cmd_q;
+	op.jobid = jobid;
+	op.sb_key = cmd_q->sb_key; /* Pre-allocated */
+	op.sb_ctx = cmd_q->sb_ctx; /* Pre-allocated */
+	op.init = 1;
+	op.u.aes.type = aes->type;
 	op.u.aes.mode = CCP_AES_MODE_GHASH;
 	op.u.aes.action = CCP_AES_GHASHFINAL;
 	op.src.type = CCP_MEMTYPE_SYSTEM;
@@ -843,7 +853,8 @@ static int ccp_run_aes_gcm_cmd(struct cc
 		if (ret)
 			goto e_tag;
 
-		ret = memcmp(tag.address, final_wa.address, AES_BLOCK_SIZE);
+		ret = crypto_memneq(tag.address, final_wa.address,
+				    AES_BLOCK_SIZE) ? -EBADMSG : 0;
 		ccp_dm_free(&tag);
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccp/psp-dev.c linux-libre-5.1.21-gnu/drivers/crypto/ccp/psp-dev.c
--- linux-libre-5.1-gnu/drivers/crypto/ccp/psp-dev.c	2019-05-05 21:19:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccp/psp-dev.c	2019-07-28 13:21:07.000000000 -0400
@@ -997,7 +997,7 @@ void psp_pci_init(void)
 	rc = sev_platform_init(&error);
 	if (rc) {
 		dev_err(sp->dev, "SEV: failed to INIT error %#x\n", error);
-		goto err;
+		return;
 	}
 
 	dev_info(sp->dev, "SEV API:%d.%d build:%d\n", psp_master->api_major,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccree/cc_aead.c linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_aead.c
--- linux-libre-5.1-gnu/drivers/crypto/ccree/cc_aead.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_aead.c	2019-07-28 02:28:39.000000000 -0400
@@ -424,7 +424,7 @@ static int validate_keys_sizes(struct cc
 /* This function prepers the user key so it can pass to the hmac processing
  * (copy to intenral buffer or hash in case of key longer than block
  */
-static int cc_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key,
+static int cc_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *authkey,
 				 unsigned int keylen)
 {
 	dma_addr_t key_dma_addr = 0;
@@ -437,6 +437,7 @@ static int cc_get_plain_hmac_key(struct
 	unsigned int hashmode;
 	unsigned int idx = 0;
 	int rc = 0;
+	u8 *key = NULL;
 	struct cc_hw_desc desc[MAX_AEAD_SETKEY_SEQ];
 	dma_addr_t padded_authkey_dma_addr =
 		ctx->auth_state.hmac.padded_authkey_dma_addr;
@@ -455,11 +456,17 @@ static int cc_get_plain_hmac_key(struct
 	}
 
 	if (keylen != 0) {
+
+		key = kmemdup(authkey, keylen, GFP_KERNEL);
+		if (!key)
+			return -ENOMEM;
+
 		key_dma_addr = dma_map_single(dev, (void *)key, keylen,
 					      DMA_TO_DEVICE);
 		if (dma_mapping_error(dev, key_dma_addr)) {
 			dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
 				key, keylen);
+			kzfree(key);
 			return -ENOMEM;
 		}
 		if (keylen > blocksize) {
@@ -542,6 +549,8 @@ static int cc_get_plain_hmac_key(struct
 	if (key_dma_addr)
 		dma_unmap_single(dev, key_dma_addr, keylen, DMA_TO_DEVICE);
 
+	kzfree(key);
+
 	return rc;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccree/cc_buffer_mgr.c linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_buffer_mgr.c
--- linux-libre-5.1-gnu/drivers/crypto/ccree/cc_buffer_mgr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_buffer_mgr.c	2019-07-28 02:28:39.000000000 -0400
@@ -83,24 +83,17 @@ static void cc_copy_mac(struct device *d
  */
 static unsigned int cc_get_sgl_nents(struct device *dev,
 				     struct scatterlist *sg_list,
-				     unsigned int nbytes, u32 *lbytes,
-				     bool *is_chained)
+				     unsigned int nbytes, u32 *lbytes)
 {
 	unsigned int nents = 0;
 
 	while (nbytes && sg_list) {
-		if (sg_list->length) {
-			nents++;
-			/* get the number of bytes in the last entry */
-			*lbytes = nbytes;
-			nbytes -= (sg_list->length > nbytes) ?
-					nbytes : sg_list->length;
-			sg_list = sg_next(sg_list);
-		} else {
-			sg_list = (struct scatterlist *)sg_page(sg_list);
-			if (is_chained)
-				*is_chained = true;
-		}
+		nents++;
+		/* get the number of bytes in the last entry */
+		*lbytes = nbytes;
+		nbytes -= (sg_list->length > nbytes) ?
+				nbytes : sg_list->length;
+		sg_list = sg_next(sg_list);
 	}
 	dev_dbg(dev, "nents %d last bytes %d\n", nents, *lbytes);
 	return nents;
@@ -142,7 +135,7 @@ void cc_copy_sg_portion(struct device *d
 {
 	u32 nents, lbytes;
 
-	nents = cc_get_sgl_nents(dev, sg, end, &lbytes, NULL);
+	nents = cc_get_sgl_nents(dev, sg, end, &lbytes);
 	sg_copy_buffer(sg, nents, (void *)dest, (end - to_skip + 1), to_skip,
 		       (direct == CC_SG_TO_BUF));
 }
@@ -314,40 +307,10 @@ static void cc_add_sg_entry(struct devic
 	sgl_data->num_of_buffers++;
 }
 
-static int cc_dma_map_sg(struct device *dev, struct scatterlist *sg, u32 nents,
-			 enum dma_data_direction direction)
-{
-	u32 i, j;
-	struct scatterlist *l_sg = sg;
-
-	for (i = 0; i < nents; i++) {
-		if (!l_sg)
-			break;
-		if (dma_map_sg(dev, l_sg, 1, direction) != 1) {
-			dev_err(dev, "dma_map_page() sg buffer failed\n");
-			goto err;
-		}
-		l_sg = sg_next(l_sg);
-	}
-	return nents;
-
-err:
-	/* Restore mapped parts */
-	for (j = 0; j < i; j++) {
-		if (!sg)
-			break;
-		dma_unmap_sg(dev, sg, 1, direction);
-		sg = sg_next(sg);
-	}
-	return 0;
-}
-
 static int cc_map_sg(struct device *dev, struct scatterlist *sg,
 		     unsigned int nbytes, int direction, u32 *nents,
 		     u32 max_sg_nents, u32 *lbytes, u32 *mapped_nents)
 {
-	bool is_chained = false;
-
 	if (sg_is_last(sg)) {
 		/* One entry only case -set to DLLI */
 		if (dma_map_sg(dev, sg, 1, direction) != 1) {
@@ -361,35 +324,21 @@ static int cc_map_sg(struct device *dev,
 		*nents = 1;
 		*mapped_nents = 1;
 	} else {  /*sg_is_last*/
-		*nents = cc_get_sgl_nents(dev, sg, nbytes, lbytes,
-					  &is_chained);
+		*nents = cc_get_sgl_nents(dev, sg, nbytes, lbytes);
 		if (*nents > max_sg_nents) {
 			*nents = 0;
 			dev_err(dev, "Too many fragments. current %d max %d\n",
 				*nents, max_sg_nents);
 			return -ENOMEM;
 		}
-		if (!is_chained) {
-			/* In case of mmu the number of mapped nents might
-			 * be changed from the original sgl nents
-			 */
-			*mapped_nents = dma_map_sg(dev, sg, *nents, direction);
-			if (*mapped_nents == 0) {
-				*nents = 0;
-				dev_err(dev, "dma_map_sg() sg buffer failed\n");
-				return -ENOMEM;
-			}
-		} else {
-			/*In this case the driver maps entry by entry so it
-			 * must have the same nents before and after map
-			 */
-			*mapped_nents = cc_dma_map_sg(dev, sg, *nents,
-						      direction);
-			if (*mapped_nents != *nents) {
-				*nents = *mapped_nents;
-				dev_err(dev, "dma_map_sg() sg buffer failed\n");
-				return -ENOMEM;
-			}
+		/* In case of mmu the number of mapped nents might
+		 * be changed from the original sgl nents
+		 */
+		*mapped_nents = dma_map_sg(dev, sg, *nents, direction);
+		if (*mapped_nents == 0) {
+			*nents = 0;
+			dev_err(dev, "dma_map_sg() sg buffer failed\n");
+			return -ENOMEM;
 		}
 	}
 
@@ -571,7 +520,6 @@ void cc_unmap_aead_request(struct device
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	struct cc_drvdata *drvdata = dev_get_drvdata(dev);
 	u32 dummy;
-	bool chained;
 	u32 size_to_unmap = 0;
 
 	if (areq_ctx->mac_buf_dma_addr) {
@@ -612,6 +560,7 @@ void cc_unmap_aead_request(struct device
 	if (areq_ctx->gen_ctx.iv_dma_addr) {
 		dma_unmap_single(dev, areq_ctx->gen_ctx.iv_dma_addr,
 				 hw_iv_size, DMA_BIDIRECTIONAL);
+		kzfree(areq_ctx->gen_ctx.iv);
 	}
 
 	/* Release pool */
@@ -636,15 +585,14 @@ void cc_unmap_aead_request(struct device
 		size_to_unmap += crypto_aead_ivsize(tfm);
 
 	dma_unmap_sg(dev, req->src,
-		     cc_get_sgl_nents(dev, req->src, size_to_unmap,
-				      &dummy, &chained),
+		     cc_get_sgl_nents(dev, req->src, size_to_unmap, &dummy),
 		     DMA_BIDIRECTIONAL);
 	if (req->src != req->dst) {
 		dev_dbg(dev, "Unmapping dst sgl: req->dst=%pK\n",
 			sg_virt(req->dst));
 		dma_unmap_sg(dev, req->dst,
 			     cc_get_sgl_nents(dev, req->dst, size_to_unmap,
-					      &dummy, &chained),
+					      &dummy),
 			     DMA_BIDIRECTIONAL);
 	}
 	if (drvdata->coherent &&
@@ -717,19 +665,27 @@ static int cc_aead_chain_iv(struct cc_dr
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
 	unsigned int hw_iv_size = areq_ctx->hw_iv_size;
 	struct device *dev = drvdata_to_dev(drvdata);
+	gfp_t flags = cc_gfp_flags(&req->base);
 	int rc = 0;
 
 	if (!req->iv) {
 		areq_ctx->gen_ctx.iv_dma_addr = 0;
+		areq_ctx->gen_ctx.iv = NULL;
 		goto chain_iv_exit;
 	}
 
-	areq_ctx->gen_ctx.iv_dma_addr = dma_map_single(dev, req->iv,
-						       hw_iv_size,
-						       DMA_BIDIRECTIONAL);
+	areq_ctx->gen_ctx.iv = kmemdup(req->iv, hw_iv_size, flags);
+	if (!areq_ctx->gen_ctx.iv)
+		return -ENOMEM;
+
+	areq_ctx->gen_ctx.iv_dma_addr =
+		dma_map_single(dev, areq_ctx->gen_ctx.iv, hw_iv_size,
+			       DMA_BIDIRECTIONAL);
 	if (dma_mapping_error(dev, areq_ctx->gen_ctx.iv_dma_addr)) {
 		dev_err(dev, "Mapping iv %u B at va=%pK for DMA failed\n",
 			hw_iv_size, req->iv);
+		kzfree(areq_ctx->gen_ctx.iv);
+		areq_ctx->gen_ctx.iv = NULL;
 		rc = -ENOMEM;
 		goto chain_iv_exit;
 	}
@@ -1022,7 +978,6 @@ static int cc_aead_chain_data(struct cc_
 	unsigned int size_for_map = req->assoclen + req->cryptlen;
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	u32 sg_index = 0;
-	bool chained = false;
 	bool is_gcm4543 = areq_ctx->is_gcm4543;
 	u32 size_to_skip = req->assoclen;
 
@@ -1043,7 +998,7 @@ static int cc_aead_chain_data(struct cc_
 	size_for_map += (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ?
 			authsize : 0;
 	src_mapped_nents = cc_get_sgl_nents(dev, req->src, size_for_map,
-					    &src_last_bytes, &chained);
+					    &src_last_bytes);
 	sg_index = areq_ctx->src_sgl->length;
 	//check where the data starts
 	while (sg_index <= size_to_skip) {
@@ -1083,7 +1038,7 @@ static int cc_aead_chain_data(struct cc_
 	}
 
 	dst_mapped_nents = cc_get_sgl_nents(dev, req->dst, size_for_map,
-					    &dst_last_bytes, &chained);
+					    &dst_last_bytes);
 	sg_index = areq_ctx->dst_sgl->length;
 	offset = size_to_skip;
 
@@ -1484,7 +1439,7 @@ int cc_map_hash_request_update(struct cc
 		dev_dbg(dev, " less than one block: curr_buff=%pK *curr_buff_cnt=0x%X copy_to=%pK\n",
 			curr_buff, *curr_buff_cnt, &curr_buff[*curr_buff_cnt]);
 		areq_ctx->in_nents =
-			cc_get_sgl_nents(dev, src, nbytes, &dummy, NULL);
+			cc_get_sgl_nents(dev, src, nbytes, &dummy);
 		sg_copy_to_buffer(src, areq_ctx->in_nents,
 				  &curr_buff[*curr_buff_cnt], nbytes);
 		*curr_buff_cnt += nbytes;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccree/cc_driver.h linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_driver.h
--- linux-libre-5.1-gnu/drivers/crypto/ccree/cc_driver.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_driver.h	2019-07-28 02:28:39.000000000 -0400
@@ -168,6 +168,7 @@ struct cc_alg_template {
 
 struct async_gen_req_ctx {
 	dma_addr_t iv_dma_addr;
+	u8 *iv;
 	enum drv_crypto_direction op_type;
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccree/cc_fips.c linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_fips.c
--- linux-libre-5.1-gnu/drivers/crypto/ccree/cc_fips.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_fips.c	2019-07-28 02:28:39.000000000 -0400
@@ -72,20 +72,28 @@ static inline void tee_fips_error(struct
 		dev_err(dev, "TEE reported error!\n");
 }
 
+/*
+ * This function check if cryptocell tee fips error occurred
+ * and in such case triggers system error
+ */
+void cc_tee_handle_fips_error(struct cc_drvdata *p_drvdata)
+{
+	struct device *dev = drvdata_to_dev(p_drvdata);
+
+	if (!cc_get_tee_fips_status(p_drvdata))
+		tee_fips_error(dev);
+}
+
 /* Deferred service handler, run as interrupt-fired tasklet */
 static void fips_dsr(unsigned long devarg)
 {
 	struct cc_drvdata *drvdata = (struct cc_drvdata *)devarg;
-	struct device *dev = drvdata_to_dev(drvdata);
-	u32 irq, state, val;
+	u32 irq, val;
 
 	irq = (drvdata->irq & (CC_GPR0_IRQ_MASK));
 
 	if (irq) {
-		state = cc_ioread(drvdata, CC_REG(GPR_HOST));
-
-		if (state != (CC_FIPS_SYNC_TEE_STATUS | CC_FIPS_SYNC_MODULE_OK))
-			tee_fips_error(dev);
+		cc_tee_handle_fips_error(drvdata);
 	}
 
 	/* after verifing that there is nothing to do,
@@ -113,8 +121,7 @@ int cc_fips_init(struct cc_drvdata *p_dr
 	dev_dbg(dev, "Initializing fips tasklet\n");
 	tasklet_init(&fips_h->tasklet, fips_dsr, (unsigned long)p_drvdata);
 
-	if (!cc_get_tee_fips_status(p_drvdata))
-		tee_fips_error(dev);
+	cc_tee_handle_fips_error(p_drvdata);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccree/cc_fips.h linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_fips.h
--- linux-libre-5.1-gnu/drivers/crypto/ccree/cc_fips.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_fips.h	2019-07-28 02:28:39.000000000 -0400
@@ -18,6 +18,7 @@ int cc_fips_init(struct cc_drvdata *p_dr
 void cc_fips_fini(struct cc_drvdata *drvdata);
 void fips_handler(struct cc_drvdata *drvdata);
 void cc_set_ree_fips_status(struct cc_drvdata *drvdata, bool ok);
+void cc_tee_handle_fips_error(struct cc_drvdata *p_drvdata);
 
 #else  /* CONFIG_CRYPTO_FIPS */
 
@@ -30,6 +31,7 @@ static inline void cc_fips_fini(struct c
 static inline void cc_set_ree_fips_status(struct cc_drvdata *drvdata,
 					  bool ok) {}
 static inline void fips_handler(struct cc_drvdata *drvdata) {}
+static inline void cc_tee_handle_fips_error(struct cc_drvdata *p_drvdata) {}
 
 #endif /* CONFIG_CRYPTO_FIPS */
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccree/cc_hash.c linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_hash.c
--- linux-libre-5.1-gnu/drivers/crypto/ccree/cc_hash.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_hash.c	2019-07-28 02:28:39.000000000 -0400
@@ -69,6 +69,7 @@ struct cc_hash_alg {
 struct hash_key_req_ctx {
 	u32 keylen;
 	dma_addr_t key_dma_addr;
+	u8 *key;
 };
 
 /* hash per-session context */
@@ -730,13 +731,20 @@ static int cc_hash_setkey(struct crypto_
 	ctx->key_params.keylen = keylen;
 	ctx->key_params.key_dma_addr = 0;
 	ctx->is_hmac = true;
+	ctx->key_params.key = NULL;
 
 	if (keylen) {
+		ctx->key_params.key = kmemdup(key, keylen, GFP_KERNEL);
+		if (!ctx->key_params.key)
+			return -ENOMEM;
+
 		ctx->key_params.key_dma_addr =
-			dma_map_single(dev, (void *)key, keylen, DMA_TO_DEVICE);
+			dma_map_single(dev, (void *)ctx->key_params.key, keylen,
+				       DMA_TO_DEVICE);
 		if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) {
 			dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
-				key, keylen);
+				ctx->key_params.key, keylen);
+			kzfree(ctx->key_params.key);
 			return -ENOMEM;
 		}
 		dev_dbg(dev, "mapping key-buffer: key_dma_addr=%pad keylen=%u\n",
@@ -887,6 +895,9 @@ out:
 		dev_dbg(dev, "Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n",
 			&ctx->key_params.key_dma_addr, ctx->key_params.keylen);
 	}
+
+	kzfree(ctx->key_params.key);
+
 	return rc;
 }
 
@@ -913,11 +924,16 @@ static int cc_xcbc_setkey(struct crypto_
 
 	ctx->key_params.keylen = keylen;
 
+	ctx->key_params.key = kmemdup(key, keylen, GFP_KERNEL);
+	if (!ctx->key_params.key)
+		return -ENOMEM;
+
 	ctx->key_params.key_dma_addr =
-		dma_map_single(dev, (void *)key, keylen, DMA_TO_DEVICE);
+		dma_map_single(dev, ctx->key_params.key, keylen, DMA_TO_DEVICE);
 	if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) {
 		dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
 			key, keylen);
+		kzfree(ctx->key_params.key);
 		return -ENOMEM;
 	}
 	dev_dbg(dev, "mapping key-buffer: key_dma_addr=%pad keylen=%u\n",
@@ -969,6 +985,8 @@ static int cc_xcbc_setkey(struct crypto_
 	dev_dbg(dev, "Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n",
 		&ctx->key_params.key_dma_addr, ctx->key_params.keylen);
 
+	kzfree(ctx->key_params.key);
+
 	return rc;
 }
 
@@ -1621,7 +1639,7 @@ static struct cc_hash_template driver_ha
 			.setkey = cc_hash_setkey,
 			.halg = {
 				.digestsize = SHA224_DIGEST_SIZE,
-				.statesize = CC_STATE_SIZE(SHA224_DIGEST_SIZE),
+				.statesize = CC_STATE_SIZE(SHA256_DIGEST_SIZE),
 			},
 		},
 		.hash_mode = DRV_HASH_SHA224,
@@ -1648,7 +1666,7 @@ static struct cc_hash_template driver_ha
 			.setkey = cc_hash_setkey,
 			.halg = {
 				.digestsize = SHA384_DIGEST_SIZE,
-				.statesize = CC_STATE_SIZE(SHA384_DIGEST_SIZE),
+				.statesize = CC_STATE_SIZE(SHA512_DIGEST_SIZE),
 			},
 		},
 		.hash_mode = DRV_HASH_SHA384,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccree/cc_ivgen.c linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_ivgen.c
--- linux-libre-5.1-gnu/drivers/crypto/ccree/cc_ivgen.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_ivgen.c	2019-07-28 02:28:39.000000000 -0400
@@ -154,9 +154,6 @@ void cc_ivgen_fini(struct cc_drvdata *dr
 	}
 
 	ivgen_ctx->pool = NULL_SRAM_ADDR;
-
-	/* release "this" context */
-	kfree(ivgen_ctx);
 }
 
 /*!
@@ -174,10 +171,12 @@ int cc_ivgen_init(struct cc_drvdata *drv
 	int rc;
 
 	/* Allocate "this" context */
-	ivgen_ctx = kzalloc(sizeof(*ivgen_ctx), GFP_KERNEL);
+	ivgen_ctx = devm_kzalloc(device, sizeof(*ivgen_ctx), GFP_KERNEL);
 	if (!ivgen_ctx)
 		return -ENOMEM;
 
+	drvdata->ivgen_handle = ivgen_ctx;
+
 	/* Allocate pool's header for initial enc. key/IV */
 	ivgen_ctx->pool_meta = dma_alloc_coherent(device, CC_IVPOOL_META_SIZE,
 						  &ivgen_ctx->pool_meta_dma,
@@ -196,8 +195,6 @@ int cc_ivgen_init(struct cc_drvdata *drv
 		goto out;
 	}
 
-	drvdata->ivgen_handle = ivgen_ctx;
-
 	return cc_init_iv_sram(drvdata);
 
 out:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/ccree/cc_pm.c linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_pm.c
--- linux-libre-5.1-gnu/drivers/crypto/ccree/cc_pm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/ccree/cc_pm.c	2019-07-28 02:28:39.000000000 -0400
@@ -11,6 +11,7 @@
 #include "cc_ivgen.h"
 #include "cc_hash.h"
 #include "cc_pm.h"
+#include "cc_fips.h"
 
 #define POWER_DOWN_ENABLE 0x01
 #define POWER_DOWN_DISABLE 0x00
@@ -25,13 +26,13 @@ int cc_pm_suspend(struct device *dev)
 	int rc;
 
 	dev_dbg(dev, "set HOST_POWER_DOWN_EN\n");
-	cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE);
 	rc = cc_suspend_req_queue(drvdata);
 	if (rc) {
 		dev_err(dev, "cc_suspend_req_queue (%x)\n", rc);
 		return rc;
 	}
 	fini_cc_regs(drvdata);
+	cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE);
 	cc_clk_off(drvdata);
 	return 0;
 }
@@ -42,19 +43,21 @@ int cc_pm_resume(struct device *dev)
 	struct cc_drvdata *drvdata = dev_get_drvdata(dev);
 
 	dev_dbg(dev, "unset HOST_POWER_DOWN_EN\n");
-	cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE);
-
+	/* Enables the device source clk */
 	rc = cc_clk_on(drvdata);
 	if (rc) {
 		dev_err(dev, "failed getting clock back on. We're toast.\n");
 		return rc;
 	}
 
+	cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE);
 	rc = init_cc_regs(drvdata, false);
 	if (rc) {
 		dev_err(dev, "init_cc_regs (%x)\n", rc);
 		return rc;
 	}
+	/* check if tee fips error occurred during power down */
+	cc_tee_handle_fips_error(drvdata);
 
 	rc = cc_resume_req_queue(drvdata);
 	if (rc) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/inside-secure/safexcel_cipher.c linux-libre-5.1.21-gnu/drivers/crypto/inside-secure/safexcel_cipher.c
--- linux-libre-5.1-gnu/drivers/crypto/inside-secure/safexcel_cipher.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/inside-secure/safexcel_cipher.c	2019-07-28 02:28:39.000000000 -0400
@@ -51,6 +51,8 @@ struct safexcel_cipher_ctx {
 
 struct safexcel_cipher_req {
 	enum safexcel_cipher_direction direction;
+	/* Number of result descriptors associated to the request */
+	unsigned int rdescs;
 	bool needs_inv;
 };
 
@@ -333,7 +335,10 @@ static int safexcel_handle_req_result(st
 
 	*ret = 0;
 
-	do {
+	if (unlikely(!sreq->rdescs))
+		return 0;
+
+	while (sreq->rdescs--) {
 		rdesc = safexcel_ring_next_rptr(priv, &priv->ring[ring].rdr);
 		if (IS_ERR(rdesc)) {
 			dev_err(priv->dev,
@@ -346,7 +351,7 @@ static int safexcel_handle_req_result(st
 			*ret = safexcel_rdesc_check_errors(priv, rdesc);
 
 		ndesc++;
-	} while (!rdesc->last_seg);
+	}
 
 	safexcel_complete(priv, ring);
 
@@ -501,6 +506,7 @@ cdesc_rollback:
 static int safexcel_handle_inv_result(struct safexcel_crypto_priv *priv,
 				      int ring,
 				      struct crypto_async_request *base,
+				      struct safexcel_cipher_req *sreq,
 				      bool *should_complete, int *ret)
 {
 	struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(base->tfm);
@@ -509,7 +515,10 @@ static int safexcel_handle_inv_result(st
 
 	*ret = 0;
 
-	do {
+	if (unlikely(!sreq->rdescs))
+		return 0;
+
+	while (sreq->rdescs--) {
 		rdesc = safexcel_ring_next_rptr(priv, &priv->ring[ring].rdr);
 		if (IS_ERR(rdesc)) {
 			dev_err(priv->dev,
@@ -522,7 +531,7 @@ static int safexcel_handle_inv_result(st
 			*ret = safexcel_rdesc_check_errors(priv, rdesc);
 
 		ndesc++;
-	} while (!rdesc->last_seg);
+	}
 
 	safexcel_complete(priv, ring);
 
@@ -564,7 +573,7 @@ static int safexcel_skcipher_handle_resu
 
 	if (sreq->needs_inv) {
 		sreq->needs_inv = false;
-		err = safexcel_handle_inv_result(priv, ring, async,
+		err = safexcel_handle_inv_result(priv, ring, async, sreq,
 						 should_complete, ret);
 	} else {
 		err = safexcel_handle_req_result(priv, ring, async, req->src,
@@ -587,7 +596,7 @@ static int safexcel_aead_handle_result(s
 
 	if (sreq->needs_inv) {
 		sreq->needs_inv = false;
-		err = safexcel_handle_inv_result(priv, ring, async,
+		err = safexcel_handle_inv_result(priv, ring, async, sreq,
 						 should_complete, ret);
 	} else {
 		err = safexcel_handle_req_result(priv, ring, async, req->src,
@@ -633,6 +642,8 @@ static int safexcel_skcipher_send(struct
 		ret = safexcel_send_req(async, ring, sreq, req->src,
 					req->dst, req->cryptlen, 0, 0, req->iv,
 					commands, results);
+
+	sreq->rdescs = *results;
 	return ret;
 }
 
@@ -655,6 +666,7 @@ static int safexcel_aead_send(struct cry
 					req->cryptlen, req->assoclen,
 					crypto_aead_authsize(tfm), req->iv,
 					commands, results);
+	sreq->rdescs = *results;
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/nx/nx-842-powernv.c linux-libre-5.1.21-gnu/drivers/crypto/nx/nx-842-powernv.c
--- linux-libre-5.1-gnu/drivers/crypto/nx/nx-842-powernv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/nx/nx-842-powernv.c	2019-07-28 02:28:39.000000000 -0400
@@ -36,8 +36,6 @@ MODULE_ALIAS_CRYPTO("842-nx");
 #define WORKMEM_ALIGN	(CRB_ALIGN)
 #define CSB_WAIT_MAX	(5000) /* ms */
 #define VAS_RETRIES	(10)
-/* # of requests allowed per RxFIFO at a time. 0 for unlimited */
-#define MAX_CREDITS_PER_RXFIFO	(1024)
 
 struct nx842_workmem {
 	/* Below fields must be properly aligned */
@@ -821,7 +819,11 @@ static int __init vas_cfg_coproc_info(st
 	rxattr.lnotify_lpid = lpid;
 	rxattr.lnotify_pid = pid;
 	rxattr.lnotify_tid = tid;
-	rxattr.wcreds_max = MAX_CREDITS_PER_RXFIFO;
+	/*
+	 * Maximum RX window credits can not be more than #CRBs in
+	 * RxFIFO. Otherwise, can get checkstop if RxFIFO overruns.
+	 */
+	rxattr.wcreds_max = fifo_size / CRB_SIZE;
 
 	/*
 	 * Open a VAS receice window which is used to configure RxFIFO
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c linux-libre-5.1.21-gnu/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c
--- linux-libre-5.1-gnu/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c	2019-07-28 02:28:39.000000000 -0400
@@ -250,9 +250,14 @@ static int rk_set_data_start(struct rk_c
 	u8 *src_last_blk = page_address(sg_page(dev->sg_src)) +
 		dev->sg_src->offset + dev->sg_src->length - ivsize;
 
-	/* store the iv that need to be updated in chain mode */
-	if (ctx->mode & RK_CRYPTO_DEC)
+	/* Store the iv that need to be updated in chain mode.
+	 * And update the IV buffer to contain the next IV for decryption mode.
+	 */
+	if (ctx->mode & RK_CRYPTO_DEC) {
 		memcpy(ctx->iv, src_last_blk, ivsize);
+		sg_pcopy_to_buffer(dev->first, dev->src_nents, req->info,
+				   ivsize, dev->total - ivsize);
+	}
 
 	err = dev->load_data(dev, dev->sg_src, dev->sg_dst);
 	if (!err)
@@ -288,13 +293,19 @@ static void rk_iv_copyback(struct rk_cry
 	struct ablkcipher_request *req =
 		ablkcipher_request_cast(dev->async_req);
 	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm);
 	u32 ivsize = crypto_ablkcipher_ivsize(tfm);
 
-	if (ivsize == DES_BLOCK_SIZE)
-		memcpy_fromio(req->info, dev->reg + RK_CRYPTO_TDES_IV_0,
-			      ivsize);
-	else if (ivsize == AES_BLOCK_SIZE)
-		memcpy_fromio(req->info, dev->reg + RK_CRYPTO_AES_IV_0, ivsize);
+	/* Update the IV buffer to contain the next IV for encryption mode. */
+	if (!(ctx->mode & RK_CRYPTO_DEC)) {
+		if (dev->aligned) {
+			memcpy(req->info, sg_virt(dev->sg_dst) +
+				dev->sg_dst->length - ivsize, ivsize);
+		} else {
+			memcpy(req->info, dev->addr_vir +
+				dev->count - ivsize, ivsize);
+		}
+	}
 }
 
 static void rk_update_iv(struct rk_crypto_info *dev)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/sunxi-ss/sun4i-ss-hash.c linux-libre-5.1.21-gnu/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
--- linux-libre-5.1-gnu/drivers/crypto/sunxi-ss/sun4i-ss-hash.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/sunxi-ss/sun4i-ss-hash.c	2019-07-28 02:28:39.000000000 -0400
@@ -240,7 +240,10 @@ static int sun4i_hash(struct ahash_reque
 		}
 	} else {
 		/* Since we have the flag final, we can go up to modulo 4 */
-		end = ((areq->nbytes + op->len) / 4) * 4 - op->len;
+		if (areq->nbytes < 4)
+			end = 0;
+		else
+			end = ((areq->nbytes + op->len) / 4) * 4 - op->len;
 	}
 
 	/* TODO if SGlen % 4 and !op->len then DMA */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/talitos.c linux-libre-5.1.21-gnu/drivers/crypto/talitos.c
--- linux-libre-5.1-gnu/drivers/crypto/talitos.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/talitos.c	2019-07-28 02:28:39.000000000 -0400
@@ -334,6 +334,21 @@ int talitos_submit(struct device *dev, i
 }
 EXPORT_SYMBOL(talitos_submit);
 
+static __be32 get_request_hdr(struct talitos_request *request, bool is_sec1)
+{
+	struct talitos_edesc *edesc;
+
+	if (!is_sec1)
+		return request->desc->hdr;
+
+	if (!request->desc->next_desc)
+		return request->desc->hdr1;
+
+	edesc = container_of(request->desc, struct talitos_edesc, desc);
+
+	return ((struct talitos_desc *)(edesc->buf + edesc->dma_len))->hdr1;
+}
+
 /*
  * process what was done, notify callback of error if not
  */
@@ -355,12 +370,7 @@ static void flush_channel(struct device
 
 		/* descriptors with their done bits set don't get the error */
 		rmb();
-		if (!is_sec1)
-			hdr = request->desc->hdr;
-		else if (request->desc->next_desc)
-			hdr = (request->desc + 1)->hdr1;
-		else
-			hdr = request->desc->hdr1;
+		hdr = get_request_hdr(request, is_sec1);
 
 		if ((hdr & DESC_HDR_DONE) == DESC_HDR_DONE)
 			status = 0;
@@ -490,8 +500,14 @@ static u32 current_desc_hdr(struct devic
 		}
 	}
 
-	if (priv->chan[ch].fifo[iter].desc->next_desc == cur_desc)
-		return (priv->chan[ch].fifo[iter].desc + 1)->hdr;
+	if (priv->chan[ch].fifo[iter].desc->next_desc == cur_desc) {
+		struct talitos_edesc *edesc;
+
+		edesc = container_of(priv->chan[ch].fifo[iter].desc,
+				     struct talitos_edesc, desc);
+		return ((struct talitos_desc *)
+			(edesc->buf + edesc->dma_len))->hdr;
+	}
 
 	return priv->chan[ch].fifo[iter].desc->hdr;
 }
@@ -913,36 +929,6 @@ badkey:
 	return -EINVAL;
 }
 
-/*
- * talitos_edesc - s/w-extended descriptor
- * @src_nents: number of segments in input scatterlist
- * @dst_nents: number of segments in output scatterlist
- * @icv_ool: whether ICV is out-of-line
- * @iv_dma: dma address of iv for checking continuity and link table
- * @dma_len: length of dma mapped link_tbl space
- * @dma_link_tbl: bus physical address of link_tbl/buf
- * @desc: h/w descriptor
- * @link_tbl: input and output h/w link tables (if {src,dst}_nents > 1) (SEC2)
- * @buf: input and output buffeur (if {src,dst}_nents > 1) (SEC1)
- *
- * if decrypting (with authcheck), or either one of src_nents or dst_nents
- * is greater than 1, an integrity check value is concatenated to the end
- * of link_tbl data
- */
-struct talitos_edesc {
-	int src_nents;
-	int dst_nents;
-	bool icv_ool;
-	dma_addr_t iv_dma;
-	int dma_len;
-	dma_addr_t dma_link_tbl;
-	struct talitos_desc desc;
-	union {
-		struct talitos_ptr link_tbl[0];
-		u8 buf[0];
-	};
-};
-
 static void talitos_sg_unmap(struct device *dev,
 			     struct talitos_edesc *edesc,
 			     struct scatterlist *src,
@@ -1015,7 +1001,6 @@ static void ipsec_esp_encrypt_done(struc
 	unsigned int authsize = crypto_aead_authsize(authenc);
 	unsigned int ivsize = crypto_aead_ivsize(authenc);
 	struct talitos_edesc *edesc;
-	struct scatterlist *sg;
 	void *icvdata;
 
 	edesc = container_of(desc, struct talitos_edesc, desc);
@@ -1029,9 +1014,8 @@ static void ipsec_esp_encrypt_done(struc
 		else
 			icvdata = &edesc->link_tbl[edesc->src_nents +
 						   edesc->dst_nents + 2];
-		sg = sg_last(areq->dst, edesc->dst_nents);
-		memcpy((char *)sg_virt(sg) + sg->length - authsize,
-		       icvdata, authsize);
+		sg_pcopy_from_buffer(areq->dst, edesc->dst_nents ? : 1, icvdata,
+				     authsize, areq->assoclen + areq->cryptlen);
 	}
 
 	dma_unmap_single(dev, edesc->iv_dma, ivsize, DMA_TO_DEVICE);
@@ -1049,7 +1033,6 @@ static void ipsec_esp_decrypt_swauth_don
 	struct crypto_aead *authenc = crypto_aead_reqtfm(req);
 	unsigned int authsize = crypto_aead_authsize(authenc);
 	struct talitos_edesc *edesc;
-	struct scatterlist *sg;
 	char *oicv, *icv;
 	struct talitos_private *priv = dev_get_drvdata(dev);
 	bool is_sec1 = has_ftr_sec1(priv);
@@ -1059,9 +1042,18 @@ static void ipsec_esp_decrypt_swauth_don
 	ipsec_esp_unmap(dev, edesc, req);
 
 	if (!err) {
+		char icvdata[SHA512_DIGEST_SIZE];
+		int nents = edesc->dst_nents ? : 1;
+		unsigned int len = req->assoclen + req->cryptlen;
+
 		/* auth check */
-		sg = sg_last(req->dst, edesc->dst_nents ? : 1);
-		icv = (char *)sg_virt(sg) + sg->length - authsize;
+		if (nents > 1) {
+			sg_pcopy_to_buffer(req->dst, nents, icvdata, authsize,
+					   len - authsize);
+			icv = icvdata;
+		} else {
+			icv = (char *)sg_virt(req->dst) + len - authsize;
+		}
 
 		if (edesc->dma_len) {
 			if (is_sec1)
@@ -1431,15 +1423,11 @@ static struct talitos_edesc *talitos_ede
 	edesc->dst_nents = dst_nents;
 	edesc->iv_dma = iv_dma;
 	edesc->dma_len = dma_len;
-	if (dma_len) {
-		void *addr = &edesc->link_tbl[0];
-
-		if (is_sec1 && !dst)
-			addr += sizeof(struct talitos_desc);
-		edesc->dma_link_tbl = dma_map_single(dev, addr,
+	if (dma_len)
+		edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0],
 						     edesc->dma_len,
 						     DMA_BIDIRECTIONAL);
-	}
+
 	return edesc;
 }
 
@@ -1481,7 +1469,6 @@ static int aead_decrypt(struct aead_requ
 	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
 	struct talitos_private *priv = dev_get_drvdata(ctx->dev);
 	struct talitos_edesc *edesc;
-	struct scatterlist *sg;
 	void *icvdata;
 
 	req->cryptlen -= authsize;
@@ -1515,9 +1502,8 @@ static int aead_decrypt(struct aead_requ
 	else
 		icvdata = &edesc->link_tbl[0];
 
-	sg = sg_last(req->src, edesc->src_nents ? : 1);
-
-	memcpy(icvdata, (char *)sg_virt(sg) + sg->length - authsize, authsize);
+	sg_pcopy_to_buffer(req->src, edesc->src_nents ? : 1, icvdata, authsize,
+			   req->assoclen + req->cryptlen - authsize);
 
 	return ipsec_esp(edesc, req, ipsec_esp_decrypt_swauth_done);
 }
@@ -1571,11 +1557,15 @@ static void ablkcipher_done(struct devic
 			    int err)
 {
 	struct ablkcipher_request *areq = context;
+	struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
+	unsigned int ivsize = crypto_ablkcipher_ivsize(cipher);
 	struct talitos_edesc *edesc;
 
 	edesc = container_of(desc, struct talitos_edesc, desc);
 
 	common_nonsnoop_unmap(dev, edesc, areq);
+	memcpy(areq->info, ctx->iv, ivsize);
 
 	kfree(edesc);
 
@@ -1706,14 +1696,16 @@ static void common_nonsnoop_hash_unmap(s
 	struct talitos_private *priv = dev_get_drvdata(dev);
 	bool is_sec1 = has_ftr_sec1(priv);
 	struct talitos_desc *desc = &edesc->desc;
-	struct talitos_desc *desc2 = desc + 1;
+	struct talitos_desc *desc2 = (struct talitos_desc *)
+				     (edesc->buf + edesc->dma_len);
 
 	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE);
 	if (desc->next_desc &&
 	    desc->ptr[5].ptr != desc2->ptr[5].ptr)
 		unmap_single_talitos_ptr(dev, &desc2->ptr[5], DMA_FROM_DEVICE);
 
-	talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL, 0, 0);
+	if (req_ctx->psrc)
+		talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL, 0, 0);
 
 	/* When using hashctx-in, must unmap it. */
 	if (from_talitos_ptr_len(&edesc->desc.ptr[1], is_sec1))
@@ -1780,7 +1772,6 @@ static void talitos_handle_buggy_hash(st
 
 static int common_nonsnoop_hash(struct talitos_edesc *edesc,
 				struct ahash_request *areq, unsigned int length,
-				unsigned int offset,
 				void (*callback) (struct device *dev,
 						  struct talitos_desc *desc,
 						  void *context, int error))
@@ -1819,9 +1810,7 @@ static int common_nonsnoop_hash(struct t
 
 	sg_count = edesc->src_nents ?: 1;
 	if (is_sec1 && sg_count > 1)
-		sg_pcopy_to_buffer(req_ctx->psrc, sg_count,
-				   edesc->buf + sizeof(struct talitos_desc),
-				   length, req_ctx->nbuf);
+		sg_copy_to_buffer(req_ctx->psrc, sg_count, edesc->buf, length);
 	else if (length)
 		sg_count = dma_map_sg(dev, req_ctx->psrc, sg_count,
 				      DMA_TO_DEVICE);
@@ -1834,7 +1823,7 @@ static int common_nonsnoop_hash(struct t
 				       DMA_TO_DEVICE);
 	} else {
 		sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
-					  &desc->ptr[3], sg_count, offset, 0);
+					  &desc->ptr[3], sg_count, 0, 0);
 		if (sg_count > 1)
 			sync_needed = true;
 	}
@@ -1858,7 +1847,8 @@ static int common_nonsnoop_hash(struct t
 		talitos_handle_buggy_hash(ctx, edesc, &desc->ptr[3]);
 
 	if (is_sec1 && req_ctx->nbuf && length) {
-		struct talitos_desc *desc2 = desc + 1;
+		struct talitos_desc *desc2 = (struct talitos_desc *)
+					     (edesc->buf + edesc->dma_len);
 		dma_addr_t next_desc;
 
 		memset(desc2, 0, sizeof(*desc2));
@@ -1879,7 +1869,7 @@ static int common_nonsnoop_hash(struct t
 						      DMA_TO_DEVICE);
 		copy_talitos_ptr(&desc2->ptr[2], &desc->ptr[2], is_sec1);
 		sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
-					  &desc2->ptr[3], sg_count, offset, 0);
+					  &desc2->ptr[3], sg_count, 0, 0);
 		if (sg_count > 1)
 			sync_needed = true;
 		copy_talitos_ptr(&desc2->ptr[5], &desc->ptr[5], is_sec1);
@@ -1990,7 +1980,6 @@ static int ahash_process_req(struct ahas
 	struct device *dev = ctx->dev;
 	struct talitos_private *priv = dev_get_drvdata(dev);
 	bool is_sec1 = has_ftr_sec1(priv);
-	int offset = 0;
 	u8 *ctx_buf = req_ctx->buf[req_ctx->buf_idx];
 
 	if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) {
@@ -2030,6 +2019,8 @@ static int ahash_process_req(struct ahas
 			sg_chain(req_ctx->bufsl, 2, areq->src);
 		req_ctx->psrc = req_ctx->bufsl;
 	} else if (is_sec1 && req_ctx->nbuf && req_ctx->nbuf < blocksize) {
+		int offset;
+
 		if (nbytes_to_hash > blocksize)
 			offset = blocksize - req_ctx->nbuf;
 		else
@@ -2042,7 +2033,8 @@ static int ahash_process_req(struct ahas
 		sg_copy_to_buffer(areq->src, nents,
 				  ctx_buf + req_ctx->nbuf, offset);
 		req_ctx->nbuf += offset;
-		req_ctx->psrc = areq->src;
+		req_ctx->psrc = scatterwalk_ffwd(req_ctx->bufsl, areq->src,
+						 offset);
 	} else
 		req_ctx->psrc = areq->src;
 
@@ -2082,8 +2074,7 @@ static int ahash_process_req(struct ahas
 	if (ctx->keylen && (req_ctx->first || req_ctx->last))
 		edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_HMAC;
 
-	return common_nonsnoop_hash(edesc, areq, nbytes_to_hash, offset,
-				    ahash_done);
+	return common_nonsnoop_hash(edesc, areq, nbytes_to_hash, ahash_done);
 }
 
 static int ahash_update(struct ahash_request *areq)
@@ -2286,7 +2277,7 @@ static struct talitos_alg_template drive
 			.base = {
 				.cra_name = "authenc(hmac(sha1),cbc(aes))",
 				.cra_driver_name = "authenc-hmac-sha1-"
-						   "cbc-aes-talitos",
+						   "cbc-aes-talitos-hsna",
 				.cra_blocksize = AES_BLOCK_SIZE,
 				.cra_flags = CRYPTO_ALG_ASYNC,
 			},
@@ -2330,7 +2321,7 @@ static struct talitos_alg_template drive
 				.cra_name = "authenc(hmac(sha1),"
 					    "cbc(des3_ede))",
 				.cra_driver_name = "authenc-hmac-sha1-"
-						   "cbc-3des-talitos",
+						   "cbc-3des-talitos-hsna",
 				.cra_blocksize = DES3_EDE_BLOCK_SIZE,
 				.cra_flags = CRYPTO_ALG_ASYNC,
 			},
@@ -2372,7 +2363,7 @@ static struct talitos_alg_template drive
 			.base = {
 				.cra_name = "authenc(hmac(sha224),cbc(aes))",
 				.cra_driver_name = "authenc-hmac-sha224-"
-						   "cbc-aes-talitos",
+						   "cbc-aes-talitos-hsna",
 				.cra_blocksize = AES_BLOCK_SIZE,
 				.cra_flags = CRYPTO_ALG_ASYNC,
 			},
@@ -2416,7 +2407,7 @@ static struct talitos_alg_template drive
 				.cra_name = "authenc(hmac(sha224),"
 					    "cbc(des3_ede))",
 				.cra_driver_name = "authenc-hmac-sha224-"
-						   "cbc-3des-talitos",
+						   "cbc-3des-talitos-hsna",
 				.cra_blocksize = DES3_EDE_BLOCK_SIZE,
 				.cra_flags = CRYPTO_ALG_ASYNC,
 			},
@@ -2458,7 +2449,7 @@ static struct talitos_alg_template drive
 			.base = {
 				.cra_name = "authenc(hmac(sha256),cbc(aes))",
 				.cra_driver_name = "authenc-hmac-sha256-"
-						   "cbc-aes-talitos",
+						   "cbc-aes-talitos-hsna",
 				.cra_blocksize = AES_BLOCK_SIZE,
 				.cra_flags = CRYPTO_ALG_ASYNC,
 			},
@@ -2502,7 +2493,7 @@ static struct talitos_alg_template drive
 				.cra_name = "authenc(hmac(sha256),"
 					    "cbc(des3_ede))",
 				.cra_driver_name = "authenc-hmac-sha256-"
-						   "cbc-3des-talitos",
+						   "cbc-3des-talitos-hsna",
 				.cra_blocksize = DES3_EDE_BLOCK_SIZE,
 				.cra_flags = CRYPTO_ALG_ASYNC,
 			},
@@ -2628,7 +2619,7 @@ static struct talitos_alg_template drive
 			.base = {
 				.cra_name = "authenc(hmac(md5),cbc(aes))",
 				.cra_driver_name = "authenc-hmac-md5-"
-						   "cbc-aes-talitos",
+						   "cbc-aes-talitos-hsna",
 				.cra_blocksize = AES_BLOCK_SIZE,
 				.cra_flags = CRYPTO_ALG_ASYNC,
 			},
@@ -2670,7 +2661,7 @@ static struct talitos_alg_template drive
 			.base = {
 				.cra_name = "authenc(hmac(md5),cbc(des3_ede))",
 				.cra_driver_name = "authenc-hmac-md5-"
-						   "cbc-3des-talitos",
+						   "cbc-3des-talitos-hsna",
 				.cra_blocksize = DES3_EDE_BLOCK_SIZE,
 				.cra_flags = CRYPTO_ALG_ASYNC,
 			},
@@ -3201,7 +3192,10 @@ static struct talitos_crypto_alg *talito
 		alg->cra_priority = t_alg->algt.priority;
 	else
 		alg->cra_priority = TALITOS_CRA_PRIORITY;
-	alg->cra_alignmask = 0;
+	if (has_ftr_sec1(priv))
+		alg->cra_alignmask = 3;
+	else
+		alg->cra_alignmask = 0;
 	alg->cra_ctxsize = sizeof(struct talitos_ctx);
 	alg->cra_flags |= CRYPTO_ALG_KERN_DRIVER_ONLY;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/talitos.h linux-libre-5.1.21-gnu/drivers/crypto/talitos.h
--- linux-libre-5.1-gnu/drivers/crypto/talitos.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/talitos.h	2019-07-28 02:28:39.000000000 -0400
@@ -65,6 +65,36 @@ struct talitos_desc {
 
 #define TALITOS_DESC_SIZE	(sizeof(struct talitos_desc) - sizeof(__be32))
 
+/*
+ * talitos_edesc - s/w-extended descriptor
+ * @src_nents: number of segments in input scatterlist
+ * @dst_nents: number of segments in output scatterlist
+ * @icv_ool: whether ICV is out-of-line
+ * @iv_dma: dma address of iv for checking continuity and link table
+ * @dma_len: length of dma mapped link_tbl space
+ * @dma_link_tbl: bus physical address of link_tbl/buf
+ * @desc: h/w descriptor
+ * @link_tbl: input and output h/w link tables (if {src,dst}_nents > 1) (SEC2)
+ * @buf: input and output buffeur (if {src,dst}_nents > 1) (SEC1)
+ *
+ * if decrypting (with authcheck), or either one of src_nents or dst_nents
+ * is greater than 1, an integrity check value is concatenated to the end
+ * of link_tbl data
+ */
+struct talitos_edesc {
+	int src_nents;
+	int dst_nents;
+	bool icv_ool;
+	dma_addr_t iv_dma;
+	int dma_len;
+	dma_addr_t dma_link_tbl;
+	struct talitos_desc desc;
+	union {
+		struct talitos_ptr link_tbl[0];
+		u8 buf[0];
+	};
+};
+
 /**
  * talitos_request - descriptor submission request
  * @desc: descriptor pointer (kernel virtual)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/vmx/aesp8-ppc.pl linux-libre-5.1.21-gnu/drivers/crypto/vmx/aesp8-ppc.pl
--- linux-libre-5.1-gnu/drivers/crypto/vmx/aesp8-ppc.pl	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/vmx/aesp8-ppc.pl	2019-07-28 02:28:39.000000000 -0400
@@ -1357,7 +1357,7 @@ Loop_ctr32_enc:
 	addi		$idx,$idx,16
 	bdnz		Loop_ctr32_enc
 
-	vadduwm		$ivec,$ivec,$one
+	vadduqm		$ivec,$ivec,$one
 	 vmr		$dat,$inptail
 	 lvx		$inptail,0,$inp
 	 addi		$inp,$inp,16
@@ -1854,7 +1854,7 @@ Lctr32_enc8x_three:
 	stvx_u		$out1,$x10,$out
 	stvx_u		$out2,$x20,$out
 	addi		$out,$out,0x30
-	b		Lcbc_dec8x_done
+	b		Lctr32_enc8x_done
 
 .align	5
 Lctr32_enc8x_two:
@@ -1866,7 +1866,7 @@ Lctr32_enc8x_two:
 	stvx_u		$out0,$x00,$out
 	stvx_u		$out1,$x10,$out
 	addi		$out,$out,0x20
-	b		Lcbc_dec8x_done
+	b		Lctr32_enc8x_done
 
 .align	5
 Lctr32_enc8x_one:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/crypto/vmx/ghash.c linux-libre-5.1.21-gnu/drivers/crypto/vmx/ghash.c
--- linux-libre-5.1-gnu/drivers/crypto/vmx/ghash.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/crypto/vmx/ghash.c	2019-07-28 02:28:39.000000000 -0400
@@ -1,22 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * GHASH routines supporting VMX instructions on the Power 8
  *
- * Copyright (C) 2015 International Business Machines Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 only.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Copyright (C) 2015, 2019 International Business Machines Inc.
  *
  * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com>
+ *
+ * Extended by Daniel Axtens <dja@axtens.net> to replace the fallback
+ * mechanism. The new approach is based on arm64 code, which is:
+ *   Copyright (C) 2014 - 2018 Linaro Ltd. <ard.biesheuvel@linaro.org>
  */
 
 #include <linux/types.h>
@@ -39,71 +31,25 @@ void gcm_ghash_p8(u64 Xi[2], const u128
 		  const u8 *in, size_t len);
 
 struct p8_ghash_ctx {
+	/* key used by vector asm */
 	u128 htable[16];
-	struct crypto_shash *fallback;
+	/* key used by software fallback */
+	be128 key;
 };
 
 struct p8_ghash_desc_ctx {
 	u64 shash[2];
 	u8 buffer[GHASH_DIGEST_SIZE];
 	int bytes;
-	struct shash_desc fallback_desc;
 };
 
-static int p8_ghash_init_tfm(struct crypto_tfm *tfm)
-{
-	const char *alg = "ghash-generic";
-	struct crypto_shash *fallback;
-	struct crypto_shash *shash_tfm = __crypto_shash_cast(tfm);
-	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm);
-
-	fallback = crypto_alloc_shash(alg, 0, CRYPTO_ALG_NEED_FALLBACK);
-	if (IS_ERR(fallback)) {
-		printk(KERN_ERR
-		       "Failed to allocate transformation for '%s': %ld\n",
-		       alg, PTR_ERR(fallback));
-		return PTR_ERR(fallback);
-	}
-
-	crypto_shash_set_flags(fallback,
-			       crypto_shash_get_flags((struct crypto_shash
-						       *) tfm));
-
-	/* Check if the descsize defined in the algorithm is still enough. */
-	if (shash_tfm->descsize < sizeof(struct p8_ghash_desc_ctx)
-	    + crypto_shash_descsize(fallback)) {
-		printk(KERN_ERR
-		       "Desc size of the fallback implementation (%s) does not match the expected value: %lu vs %u\n",
-		       alg,
-		       shash_tfm->descsize - sizeof(struct p8_ghash_desc_ctx),
-		       crypto_shash_descsize(fallback));
-		return -EINVAL;
-	}
-	ctx->fallback = fallback;
-
-	return 0;
-}
-
-static void p8_ghash_exit_tfm(struct crypto_tfm *tfm)
-{
-	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm);
-
-	if (ctx->fallback) {
-		crypto_free_shash(ctx->fallback);
-		ctx->fallback = NULL;
-	}
-}
-
 static int p8_ghash_init(struct shash_desc *desc)
 {
-	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm));
 	struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);
 
 	dctx->bytes = 0;
 	memset(dctx->shash, 0, GHASH_DIGEST_SIZE);
-	dctx->fallback_desc.tfm = ctx->fallback;
-	dctx->fallback_desc.flags = desc->flags;
-	return crypto_shash_init(&dctx->fallback_desc);
+	return 0;
 }
 
 static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key,
@@ -121,7 +67,51 @@ static int p8_ghash_setkey(struct crypto
 	disable_kernel_vsx();
 	pagefault_enable();
 	preempt_enable();
-	return crypto_shash_setkey(ctx->fallback, key, keylen);
+
+	memcpy(&ctx->key, key, GHASH_BLOCK_SIZE);
+
+	return 0;
+}
+
+static inline void __ghash_block(struct p8_ghash_ctx *ctx,
+				 struct p8_ghash_desc_ctx *dctx)
+{
+	if (!IN_INTERRUPT) {
+		preempt_disable();
+		pagefault_disable();
+		enable_kernel_vsx();
+		gcm_ghash_p8(dctx->shash, ctx->htable,
+				dctx->buffer, GHASH_DIGEST_SIZE);
+		disable_kernel_vsx();
+		pagefault_enable();
+		preempt_enable();
+	} else {
+		crypto_xor((u8 *)dctx->shash, dctx->buffer, GHASH_BLOCK_SIZE);
+		gf128mul_lle((be128 *)dctx->shash, &ctx->key);
+	}
+}
+
+static inline void __ghash_blocks(struct p8_ghash_ctx *ctx,
+				  struct p8_ghash_desc_ctx *dctx,
+				  const u8 *src, unsigned int srclen)
+{
+	if (!IN_INTERRUPT) {
+		preempt_disable();
+		pagefault_disable();
+		enable_kernel_vsx();
+		gcm_ghash_p8(dctx->shash, ctx->htable,
+				src, srclen);
+		disable_kernel_vsx();
+		pagefault_enable();
+		preempt_enable();
+	} else {
+		while (srclen >= GHASH_BLOCK_SIZE) {
+			crypto_xor((u8 *)dctx->shash, src, GHASH_BLOCK_SIZE);
+			gf128mul_lle((be128 *)dctx->shash, &ctx->key);
+			srclen -= GHASH_BLOCK_SIZE;
+			src += GHASH_BLOCK_SIZE;
+		}
+	}
 }
 
 static int p8_ghash_update(struct shash_desc *desc,
@@ -131,49 +121,33 @@ static int p8_ghash_update(struct shash_
 	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm));
 	struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);
 
-	if (IN_INTERRUPT) {
-		return crypto_shash_update(&dctx->fallback_desc, src,
-					   srclen);
-	} else {
-		if (dctx->bytes) {
-			if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) {
-				memcpy(dctx->buffer + dctx->bytes, src,
-				       srclen);
-				dctx->bytes += srclen;
-				return 0;
-			}
+	if (dctx->bytes) {
+		if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) {
 			memcpy(dctx->buffer + dctx->bytes, src,
-			       GHASH_DIGEST_SIZE - dctx->bytes);
-			preempt_disable();
-			pagefault_disable();
-			enable_kernel_vsx();
-			gcm_ghash_p8(dctx->shash, ctx->htable,
-				     dctx->buffer, GHASH_DIGEST_SIZE);
-			disable_kernel_vsx();
-			pagefault_enable();
-			preempt_enable();
-			src += GHASH_DIGEST_SIZE - dctx->bytes;
-			srclen -= GHASH_DIGEST_SIZE - dctx->bytes;
-			dctx->bytes = 0;
-		}
-		len = srclen & ~(GHASH_DIGEST_SIZE - 1);
-		if (len) {
-			preempt_disable();
-			pagefault_disable();
-			enable_kernel_vsx();
-			gcm_ghash_p8(dctx->shash, ctx->htable, src, len);
-			disable_kernel_vsx();
-			pagefault_enable();
-			preempt_enable();
-			src += len;
-			srclen -= len;
-		}
-		if (srclen) {
-			memcpy(dctx->buffer, src, srclen);
-			dctx->bytes = srclen;
+				srclen);
+			dctx->bytes += srclen;
+			return 0;
 		}
-		return 0;
+		memcpy(dctx->buffer + dctx->bytes, src,
+			GHASH_DIGEST_SIZE - dctx->bytes);
+
+		__ghash_block(ctx, dctx);
+
+		src += GHASH_DIGEST_SIZE - dctx->bytes;
+		srclen -= GHASH_DIGEST_SIZE - dctx->bytes;
+		dctx->bytes = 0;
 	}
+	len = srclen & ~(GHASH_DIGEST_SIZE - 1);
+	if (len) {
+		__ghash_blocks(ctx, dctx, src, len);
+		src += len;
+		srclen -= len;
+	}
+	if (srclen) {
+		memcpy(dctx->buffer, src, srclen);
+		dctx->bytes = srclen;
+	}
+	return 0;
 }
 
 static int p8_ghash_final(struct shash_desc *desc, u8 *out)
@@ -182,25 +156,14 @@ static int p8_ghash_final(struct shash_d
 	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm));
 	struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);
 
-	if (IN_INTERRUPT) {
-		return crypto_shash_final(&dctx->fallback_desc, out);
-	} else {
-		if (dctx->bytes) {
-			for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++)
-				dctx->buffer[i] = 0;
-			preempt_disable();
-			pagefault_disable();
-			enable_kernel_vsx();
-			gcm_ghash_p8(dctx->shash, ctx->htable,
-				     dctx->buffer, GHASH_DIGEST_SIZE);
-			disable_kernel_vsx();
-			pagefault_enable();
-			preempt_enable();
-			dctx->bytes = 0;
-		}
-		memcpy(out, dctx->shash, GHASH_DIGEST_SIZE);
-		return 0;
+	if (dctx->bytes) {
+		for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++)
+			dctx->buffer[i] = 0;
+		__ghash_block(ctx, dctx);
+		dctx->bytes = 0;
 	}
+	memcpy(out, dctx->shash, GHASH_DIGEST_SIZE);
+	return 0;
 }
 
 struct shash_alg p8_ghash_alg = {
@@ -215,11 +178,8 @@ struct shash_alg p8_ghash_alg = {
 		 .cra_name = "ghash",
 		 .cra_driver_name = "p8_ghash",
 		 .cra_priority = 1000,
-		 .cra_flags = CRYPTO_ALG_NEED_FALLBACK,
 		 .cra_blocksize = GHASH_BLOCK_SIZE,
 		 .cra_ctxsize = sizeof(struct p8_ghash_ctx),
 		 .cra_module = THIS_MODULE,
-		 .cra_init = p8_ghash_init_tfm,
-		 .cra_exit = p8_ghash_exit_tfm,
 	},
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dax/device.c linux-libre-5.1.21-gnu/drivers/dax/device.c
--- linux-libre-5.1-gnu/drivers/dax/device.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dax/device.c	2019-07-28 02:28:39.000000000 -0400
@@ -184,8 +184,7 @@ static vm_fault_t __dev_dax_pmd_fault(st
 
 	*pfn = phys_to_pfn_t(phys, dax_region->pfn_flags);
 
-	return vmf_insert_pfn_pmd(vmf->vma, vmf->address, vmf->pmd, *pfn,
-			vmf->flags & FAULT_FLAG_WRITE);
+	return vmf_insert_pfn_pmd(vmf, *pfn, vmf->flags & FAULT_FLAG_WRITE);
 }
 
 #ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
@@ -235,8 +234,7 @@ static vm_fault_t __dev_dax_pud_fault(st
 
 	*pfn = phys_to_pfn_t(phys, dax_region->pfn_flags);
 
-	return vmf_insert_pfn_pud(vmf->vma, vmf->address, vmf->pud, *pfn,
-			vmf->flags & FAULT_FLAG_WRITE);
+	return vmf_insert_pfn_pud(vmf, *pfn, vmf->flags & FAULT_FLAG_WRITE);
 }
 #else
 static vm_fault_t __dev_dax_pud_fault(struct dev_dax *dev_dax,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dax/Kconfig linux-libre-5.1.21-gnu/drivers/dax/Kconfig
--- linux-libre-5.1-gnu/drivers/dax/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dax/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -23,7 +23,6 @@ config DEV_DAX
 config DEV_DAX_PMEM
 	tristate "PMEM DAX: direct access to persistent memory"
 	depends on LIBNVDIMM && NVDIMM_DAX && DEV_DAX
-	depends on m # until we can kill DEV_DAX_PMEM_COMPAT
 	default DEV_DAX
 	help
 	  Support raw access to persistent memory.  Note that this
@@ -50,7 +49,7 @@ config DEV_DAX_KMEM
 
 config DEV_DAX_PMEM_COMPAT
 	tristate "PMEM DAX: support the deprecated /sys/class/dax interface"
-	depends on DEV_DAX_PMEM
+	depends on m && DEV_DAX_PMEM=m
 	default DEV_DAX_PMEM
 	help
 	  Older versions of the libdaxctl library expect to find all
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dax/super.c linux-libre-5.1.21-gnu/drivers/dax/super.c
--- linux-libre-5.1-gnu/drivers/dax/super.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dax/super.c	2019-07-28 02:28:39.000000000 -0400
@@ -73,22 +73,12 @@ struct dax_device *fs_dax_get_by_bdev(st
 EXPORT_SYMBOL_GPL(fs_dax_get_by_bdev);
 #endif
 
-/**
- * __bdev_dax_supported() - Check if the device supports dax for filesystem
- * @bdev: block device to check
- * @blocksize: The block size of the device
- *
- * This is a library function for filesystems to check if the block device
- * can be mounted with dax option.
- *
- * Return: true if supported, false if unsupported
- */
-bool __bdev_dax_supported(struct block_device *bdev, int blocksize)
+bool __generic_fsdax_supported(struct dax_device *dax_dev,
+		struct block_device *bdev, int blocksize, sector_t start,
+		sector_t sectors)
 {
-	struct dax_device *dax_dev;
 	bool dax_enabled = false;
 	pgoff_t pgoff, pgoff_end;
-	struct request_queue *q;
 	char buf[BDEVNAME_SIZE];
 	void *kaddr, *end_kaddr;
 	pfn_t pfn, end_pfn;
@@ -102,21 +92,14 @@ bool __bdev_dax_supported(struct block_d
 		return false;
 	}
 
-	q = bdev_get_queue(bdev);
-	if (!q || !blk_queue_dax(q)) {
-		pr_debug("%s: error: request queue doesn't support dax\n",
-				bdevname(bdev, buf));
-		return false;
-	}
-
-	err = bdev_dax_pgoff(bdev, 0, PAGE_SIZE, &pgoff);
+	err = bdev_dax_pgoff(bdev, start, PAGE_SIZE, &pgoff);
 	if (err) {
 		pr_debug("%s: error: unaligned partition for dax\n",
 				bdevname(bdev, buf));
 		return false;
 	}
 
-	last_page = PFN_DOWN(i_size_read(bdev->bd_inode) - 1) * 8;
+	last_page = PFN_DOWN((start + sectors - 1) * 512) * PAGE_SIZE / 512;
 	err = bdev_dax_pgoff(bdev, last_page, PAGE_SIZE, &pgoff_end);
 	if (err) {
 		pr_debug("%s: error: unaligned partition for dax\n",
@@ -124,20 +107,11 @@ bool __bdev_dax_supported(struct block_d
 		return false;
 	}
 
-	dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
-	if (!dax_dev) {
-		pr_debug("%s: error: device does not support dax\n",
-				bdevname(bdev, buf));
-		return false;
-	}
-
 	id = dax_read_lock();
 	len = dax_direct_access(dax_dev, pgoff, 1, &kaddr, &pfn);
 	len2 = dax_direct_access(dax_dev, pgoff_end, 1, &end_kaddr, &end_pfn);
 	dax_read_unlock(id);
 
-	put_dax(dax_dev);
-
 	if (len < 1 || len2 < 1) {
 		pr_debug("%s: error: dax access failed (%ld)\n",
 				bdevname(bdev, buf), len < 1 ? len : len2);
@@ -178,6 +152,49 @@ bool __bdev_dax_supported(struct block_d
 	}
 	return true;
 }
+EXPORT_SYMBOL_GPL(__generic_fsdax_supported);
+
+/**
+ * __bdev_dax_supported() - Check if the device supports dax for filesystem
+ * @bdev: block device to check
+ * @blocksize: The block size of the device
+ *
+ * This is a library function for filesystems to check if the block device
+ * can be mounted with dax option.
+ *
+ * Return: true if supported, false if unsupported
+ */
+bool __bdev_dax_supported(struct block_device *bdev, int blocksize)
+{
+	struct dax_device *dax_dev;
+	struct request_queue *q;
+	char buf[BDEVNAME_SIZE];
+	bool ret;
+	int id;
+
+	q = bdev_get_queue(bdev);
+	if (!q || !blk_queue_dax(q)) {
+		pr_debug("%s: error: request queue doesn't support dax\n",
+				bdevname(bdev, buf));
+		return false;
+	}
+
+	dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
+	if (!dax_dev) {
+		pr_debug("%s: error: device does not support dax\n",
+				bdevname(bdev, buf));
+		return false;
+	}
+
+	id = dax_read_lock();
+	ret = dax_supported(dax_dev, bdev, blocksize, 0,
+			i_size_read(bdev->bd_inode) / 512);
+	dax_read_unlock(id);
+
+	put_dax(dax_dev);
+
+	return ret;
+}
 EXPORT_SYMBOL_GPL(__bdev_dax_supported);
 #endif
 
@@ -303,6 +320,15 @@ long dax_direct_access(struct dax_device
 }
 EXPORT_SYMBOL_GPL(dax_direct_access);
 
+bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
+		int blocksize, sector_t start, sector_t len)
+{
+	if (!dax_alive(dax_dev))
+		return false;
+
+	return dax_dev->ops->dax_supported(dax_dev, bdev, blocksize, start, len);
+}
+
 size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
 		size_t bytes, struct iov_iter *i)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/devfreq/devfreq.c linux-libre-5.1.21-gnu/drivers/devfreq/devfreq.c
--- linux-libre-5.1-gnu/drivers/devfreq/devfreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/devfreq/devfreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -228,7 +228,7 @@ static struct devfreq_governor *find_dev
  * if is not found. This can happen when both drivers (the governor driver
  * and the driver that call devfreq_add_device) are built as modules.
  * devfreq_list_lock should be held by the caller. Returns the matched
- * governor's pointer.
+ * governor's pointer or an error pointer.
  */
 static struct devfreq_governor *try_then_request_governor(const char *name)
 {
@@ -254,7 +254,7 @@ static struct devfreq_governor *try_then
 		/* Restore previous state before return */
 		mutex_lock(&devfreq_list_lock);
 		if (err)
-			return NULL;
+			return ERR_PTR(err);
 
 		governor = find_devfreq_governor(name);
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/at_xdmac.c linux-libre-5.1.21-gnu/drivers/dma/at_xdmac.c
--- linux-libre-5.1-gnu/drivers/dma/at_xdmac.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/at_xdmac.c	2019-07-28 02:28:39.000000000 -0400
@@ -1606,7 +1606,11 @@ static void at_xdmac_tasklet(unsigned lo
 					struct at_xdmac_desc,
 					xfer_node);
 		dev_vdbg(chan2dev(&atchan->chan), "%s: desc 0x%p\n", __func__, desc);
-		BUG_ON(!desc->active_xfer);
+		if (!desc->active_xfer) {
+			dev_err(chan2dev(&atchan->chan), "Xfer not active: exiting");
+			spin_unlock_bh(&atchan->lock);
+			return;
+		}
 
 		txd = &desc->tx_dma_desc;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/dma-jz4780.c linux-libre-5.1.21-gnu/drivers/dma/dma-jz4780.c
--- linux-libre-5.1-gnu/drivers/dma/dma-jz4780.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/dma-jz4780.c	2019-07-28 02:28:39.000000000 -0400
@@ -666,10 +666,11 @@ static enum dma_status jz4780_dma_tx_sta
 	return status;
 }
 
-static void jz4780_dma_chan_irq(struct jz4780_dma_dev *jzdma,
-	struct jz4780_dma_chan *jzchan)
+static bool jz4780_dma_chan_irq(struct jz4780_dma_dev *jzdma,
+				struct jz4780_dma_chan *jzchan)
 {
 	uint32_t dcs;
+	bool ack = true;
 
 	spin_lock(&jzchan->vchan.lock);
 
@@ -692,12 +693,20 @@ static void jz4780_dma_chan_irq(struct j
 		if ((dcs & (JZ_DMA_DCS_AR | JZ_DMA_DCS_HLT)) == 0) {
 			if (jzchan->desc->type == DMA_CYCLIC) {
 				vchan_cyclic_callback(&jzchan->desc->vdesc);
-			} else {
+
+				jz4780_dma_begin(jzchan);
+			} else if (dcs & JZ_DMA_DCS_TT) {
 				vchan_cookie_complete(&jzchan->desc->vdesc);
 				jzchan->desc = NULL;
-			}
 
-			jz4780_dma_begin(jzchan);
+				jz4780_dma_begin(jzchan);
+			} else {
+				/* False positive - continue the transfer */
+				ack = false;
+				jz4780_dma_chn_writel(jzdma, jzchan->id,
+						      JZ_DMA_REG_DCS,
+						      JZ_DMA_DCS_CTE);
+			}
 		}
 	} else {
 		dev_err(&jzchan->vchan.chan.dev->device,
@@ -705,21 +714,23 @@ static void jz4780_dma_chan_irq(struct j
 	}
 
 	spin_unlock(&jzchan->vchan.lock);
+
+	return ack;
 }
 
 static irqreturn_t jz4780_dma_irq_handler(int irq, void *data)
 {
 	struct jz4780_dma_dev *jzdma = data;
-	uint32_t pending, dmac;
+	unsigned int nb_channels = jzdma->soc_data->nb_channels;
+	unsigned long pending;
+	uint32_t dmac;
 	int i;
 
 	pending = jz4780_dma_ctrl_readl(jzdma, JZ_DMA_REG_DIRQP);
 
-	for (i = 0; i < jzdma->soc_data->nb_channels; i++) {
-		if (!(pending & (1<<i)))
-			continue;
-
-		jz4780_dma_chan_irq(jzdma, &jzdma->chan[i]);
+	for_each_set_bit(i, &pending, nb_channels) {
+		if (jz4780_dma_chan_irq(jzdma, &jzdma->chan[i]))
+			pending &= ~BIT(i);
 	}
 
 	/* Clear halt and address error status of all channels. */
@@ -728,7 +739,7 @@ static irqreturn_t jz4780_dma_irq_handle
 	jz4780_dma_ctrl_writel(jzdma, JZ_DMA_REG_DMAC, dmac);
 
 	/* Clear interrupt pending status. */
-	jz4780_dma_ctrl_writel(jzdma, JZ_DMA_REG_DIRQP, 0);
+	jz4780_dma_ctrl_writel(jzdma, JZ_DMA_REG_DIRQP, pending);
 
 	return IRQ_HANDLED;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c linux-libre-5.1.21-gnu/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
--- linux-libre-5.1-gnu/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c	2019-07-28 02:28:39.000000000 -0400
@@ -512,7 +512,8 @@ dma_chan_prep_dma_memcpy(struct dma_chan
 	return vchan_tx_prep(&chan->vc, &first->vd, flags);
 
 err_desc_get:
-	axi_desc_put(first);
+	if (first)
+		axi_desc_put(first);
 	return NULL;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/idma64.c linux-libre-5.1.21-gnu/drivers/dma/idma64.c
--- linux-libre-5.1-gnu/drivers/dma/idma64.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/idma64.c	2019-07-28 02:28:39.000000000 -0400
@@ -592,7 +592,7 @@ static int idma64_probe(struct idma64_ch
 	idma64->dma.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
 	idma64->dma.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 
-	idma64->dma.dev = chip->dev;
+	idma64->dma.dev = chip->sysdev;
 
 	dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK);
 
@@ -632,6 +632,7 @@ static int idma64_platform_probe(struct
 {
 	struct idma64_chip *chip;
 	struct device *dev = &pdev->dev;
+	struct device *sysdev = dev->parent;
 	struct resource *mem;
 	int ret;
 
@@ -648,11 +649,12 @@ static int idma64_platform_probe(struct
 	if (IS_ERR(chip->regs))
 		return PTR_ERR(chip->regs);
 
-	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	ret = dma_coerce_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
 	if (ret)
 		return ret;
 
 	chip->dev = dev;
+	chip->sysdev = sysdev;
 
 	ret = idma64_probe(chip);
 	if (ret)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/idma64.h linux-libre-5.1.21-gnu/drivers/dma/idma64.h
--- linux-libre-5.1-gnu/drivers/dma/idma64.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/idma64.h	2019-07-28 02:28:39.000000000 -0400
@@ -216,12 +216,14 @@ static inline void idma64_writel(struct
 /**
  * struct idma64_chip - representation of iDMA 64-bit controller hardware
  * @dev:		struct device of the DMA controller
+ * @sysdev:		struct device of the physical device that does DMA
  * @irq:		irq line
  * @regs:		memory mapped I/O space
  * @idma64:		struct idma64 that is filed by idma64_probe()
  */
 struct idma64_chip {
 	struct device	*dev;
+	struct device	*sysdev;
 	int		irq;
 	void __iomem	*regs;
 	struct idma64	*idma64;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/imx-sdma.c linux-libre-5.1.21-gnu/drivers/dma/imx-sdma.c
--- linux-libre-5.1-gnu/drivers/dma/imx-sdma.c	2019-05-05 21:23:57.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/imx-sdma.c	2019-07-28 13:25:10.000000000 -0400
@@ -419,6 +419,7 @@ struct sdma_driver_data {
 	int chnenbl0;
 	int num_events;
 	struct sdma_script_start_addrs	*script_addrs;
+	bool check_ratio;
 };
 
 struct sdma_engine {
@@ -557,6 +558,13 @@ static struct sdma_driver_data sdma_imx7
 	.script_addrs = &sdma_script_imx7d,
 };
 
+static struct sdma_driver_data sdma_imx8mq = {
+	.chnenbl0 = SDMA_CHNENBL0_IMX35,
+	.num_events = 48,
+	.script_addrs = &sdma_script_imx7d,
+	.check_ratio = 1,
+};
+
 static const struct platform_device_id sdma_devtypes[] = {
 	{
 		.name = "imx25-sdma",
@@ -580,6 +588,9 @@ static const struct platform_device_id s
 		.name = "imx7d-sdma",
 		.driver_data = (unsigned long)&sdma_imx7d,
 	}, {
+		.name = "imx8mq-sdma",
+		.driver_data = (unsigned long)&sdma_imx8mq,
+	}, {
 		/* sentinel */
 	}
 };
@@ -593,6 +604,7 @@ static const struct of_device_id sdma_dt
 	{ .compatible = "fsl,imx31-sdma", .data = &sdma_imx31, },
 	{ .compatible = "fsl,imx25-sdma", .data = &sdma_imx25, },
 	{ .compatible = "fsl,imx7d-sdma", .data = &sdma_imx7d, },
+	{ .compatible = "fsl,imx8mq-sdma", .data = &sdma_imx8mq, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sdma_dt_ids);
@@ -691,7 +703,7 @@ static int sdma_load_script(struct sdma_
 	spin_lock_irqsave(&sdma->channel_0_lock, flags);
 
 	bd0->mode.command = C0_SETPM;
-	bd0->mode.status = BD_DONE | BD_INTR | BD_WRAP | BD_EXTD;
+	bd0->mode.status = BD_DONE | BD_WRAP | BD_EXTD;
 	bd0->mode.count = size / 2;
 	bd0->buffer_addr = buf_phys;
 	bd0->ext_buffer_addr = address;
@@ -1013,7 +1025,7 @@ static int sdma_load_context(struct sdma
 	context->gReg[7] = sdmac->watermark_level;
 
 	bd0->mode.command = C0_SETDM;
-	bd0->mode.status = BD_DONE | BD_INTR | BD_WRAP | BD_EXTD;
+	bd0->mode.status = BD_DONE | BD_WRAP | BD_EXTD;
 	bd0->mode.count = sizeof(*context) / 4;
 	bd0->buffer_addr = sdma->context_phys;
 	bd0->ext_buffer_addr = 2048 + (sizeof(*context) / 4) * channel;
@@ -1852,7 +1864,8 @@ static int sdma_init(struct sdma_engine
 	if (ret)
 		goto disable_clk_ipg;
 
-	if (clk_get_rate(sdma->clk_ahb) == clk_get_rate(sdma->clk_ipg))
+	if (sdma->drvdata->check_ratio &&
+	    (clk_get_rate(sdma->clk_ahb) == clk_get_rate(sdma->clk_ipg)))
 		sdma->clk_ratio = 1;
 
 	/* Be sure SDMA has not started yet */
@@ -2083,27 +2096,6 @@ static int sdma_probe(struct platform_de
 	if (pdata && pdata->script_addrs)
 		sdma_add_scripts(sdma, pdata->script_addrs);
 
-	if (pdata) {
-		ret = sdma_get_firmware(sdma, pdata->fw_name);
-		if (ret)
-			dev_warn(&pdev->dev, "failed to get firmware from platform data\n");
-	} else {
-		/*
-		 * Because that device tree does not encode ROM script address,
-		 * the RAM script in firmware is mandatory for device tree
-		 * probe, otherwise it fails.
-		 */
-		ret = of_property_read_string(np, "fsl,sdma-ram-script-name",
-					      &fw_name);
-		if (ret)
-			dev_warn(&pdev->dev, "failed to get firmware name\n");
-		else {
-			ret = sdma_get_firmware(sdma, fw_name);
-			if (ret)
-				dev_warn(&pdev->dev, "failed to get firmware from device tree\n");
-		}
-	}
-
 	sdma->dma_device.dev = &pdev->dev;
 
 	sdma->dma_device.device_alloc_chan_resources = sdma_alloc_chan_resources;
@@ -2148,6 +2140,33 @@ static int sdma_probe(struct platform_de
 		of_node_put(spba_bus);
 	}
 
+	/*
+	 * Kick off firmware loading as the very last step:
+	 * attempt to load firmware only if we're not on the error path, because
+	 * the firmware callback requires a fully functional and allocated sdma
+	 * instance.
+	 */
+	if (pdata) {
+		ret = sdma_get_firmware(sdma, pdata->fw_name);
+		if (ret)
+			dev_warn(&pdev->dev, "failed to get firmware from platform data\n");
+	} else {
+		/*
+		 * Because that device tree does not encode ROM script address,
+		 * the RAM script in firmware is mandatory for device tree
+		 * probe, otherwise it fails.
+		 */
+		ret = of_property_read_string(np, "fsl,sdma-ram-script-name",
+					      &fw_name);
+		if (ret) {
+			dev_warn(&pdev->dev, "failed to get firmware name\n");
+		} else {
+			ret = sdma_get_firmware(sdma, fw_name);
+			if (ret)
+				dev_warn(&pdev->dev, "failed to get firmware from device tree\n");
+		}
+	}
+
 	return 0;
 
 err_register:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/mediatek/mtk-cqdma.c linux-libre-5.1.21-gnu/drivers/dma/mediatek/mtk-cqdma.c
--- linux-libre-5.1-gnu/drivers/dma/mediatek/mtk-cqdma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/mediatek/mtk-cqdma.c	2019-07-28 02:28:39.000000000 -0400
@@ -225,7 +225,7 @@ static int mtk_cqdma_hard_reset(struct m
 	mtk_dma_set(pc, MTK_CQDMA_RESET, MTK_CQDMA_HARD_RST_BIT);
 	mtk_dma_clr(pc, MTK_CQDMA_RESET, MTK_CQDMA_HARD_RST_BIT);
 
-	return mtk_cqdma_poll_engine_done(pc, false);
+	return mtk_cqdma_poll_engine_done(pc, true);
 }
 
 static void mtk_cqdma_start(struct mtk_cqdma_pchan *pc,
@@ -671,7 +671,7 @@ static void mtk_cqdma_free_chan_resource
 		mtk_dma_set(cvc->pc, MTK_CQDMA_FLUSH, MTK_CQDMA_FLUSH_BIT);
 
 		/* wait for the completion of flush operation */
-		if (mtk_cqdma_poll_engine_done(cvc->pc, false) < 0)
+		if (mtk_cqdma_poll_engine_done(cvc->pc, true) < 0)
 			dev_err(cqdma2dev(to_cqdma_dev(c)), "cqdma flush timeout\n");
 
 		/* clear the flush bit and interrupt flag */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/pl330.c linux-libre-5.1.21-gnu/drivers/dma/pl330.c
--- linux-libre-5.1-gnu/drivers/dma/pl330.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/pl330.c	2019-07-28 02:28:39.000000000 -0400
@@ -966,6 +966,7 @@ static void _stop(struct pl330_thread *t
 {
 	void __iomem *regs = thrd->dmac->base;
 	u8 insn[6] = {0, 0, 0, 0, 0, 0};
+	u32 inten = readl(regs + INTEN);
 
 	if (_state(thrd) == PL330_STATE_FAULT_COMPLETING)
 		UNTIL(thrd, PL330_STATE_FAULTING | PL330_STATE_KILLING);
@@ -978,10 +979,13 @@ static void _stop(struct pl330_thread *t
 
 	_emit_KILL(0, insn);
 
-	/* Stop generating interrupts for SEV */
-	writel(readl(regs + INTEN) & ~(1 << thrd->ev), regs + INTEN);
-
 	_execute_DBGINSN(thrd, insn, is_manager(thrd));
+
+	/* clear the event */
+	if (inten & (1 << thrd->ev))
+		writel(1 << thrd->ev, regs + INTCLR);
+	/* Stop generating interrupts for SEV */
+	writel(inten & ~(1 << thrd->ev), regs + INTEN);
 }
 
 /* Start doing req 'idx' of thread 'thrd' */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/qcom/bam_dma.c linux-libre-5.1.21-gnu/drivers/dma/qcom/bam_dma.c
--- linux-libre-5.1-gnu/drivers/dma/qcom/bam_dma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/qcom/bam_dma.c	2019-07-28 02:28:39.000000000 -0400
@@ -808,6 +808,9 @@ static u32 process_channel_irqs(struct b
 		/* Number of bytes available to read */
 		avail = CIRC_CNT(offset, bchan->head, MAX_DESCRIPTORS + 1);
 
+		if (offset < bchan->head)
+			avail--;
+
 		list_for_each_entry_safe(async_desc, tmp,
 					 &bchan->desc_list, desc_node) {
 			/* Not enough data to read */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/sprd-dma.c linux-libre-5.1.21-gnu/drivers/dma/sprd-dma.c
--- linux-libre-5.1-gnu/drivers/dma/sprd-dma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/sprd-dma.c	2019-07-28 02:28:39.000000000 -0400
@@ -510,7 +510,9 @@ static void sprd_dma_start(struct sprd_d
 	sprd_dma_set_uid(schan);
 	sprd_dma_enable_chn(schan);
 
-	if (schan->dev_id == SPRD_DMA_SOFTWARE_UID)
+	if (schan->dev_id == SPRD_DMA_SOFTWARE_UID &&
+	    schan->chn_mode != SPRD_DMA_DST_CHN0 &&
+	    schan->chn_mode != SPRD_DMA_DST_CHN1)
 		sprd_dma_soft_request(schan);
 }
 
@@ -552,12 +554,17 @@ static irqreturn_t dma_irq_handle(int ir
 		schan = &sdev->channels[i];
 
 		spin_lock(&schan->vc.lock);
+
+		sdesc = schan->cur_desc;
+		if (!sdesc) {
+			spin_unlock(&schan->vc.lock);
+			return IRQ_HANDLED;
+		}
+
 		int_type = sprd_dma_get_int_type(schan);
 		req_type = sprd_dma_get_req_type(schan);
 		sprd_dma_clear_int(schan);
 
-		sdesc = schan->cur_desc;
-
 		/* cyclic mode schedule callback */
 		cyclic = schan->linklist.phy_addr ? true : false;
 		if (cyclic == true) {
@@ -625,7 +632,7 @@ static enum dma_status sprd_dma_tx_statu
 		else
 			pos = 0;
 	} else if (schan->cur_desc && schan->cur_desc->vd.tx.cookie == cookie) {
-		struct sprd_dma_desc *sdesc = to_sprd_dma_desc(vd);
+		struct sprd_dma_desc *sdesc = schan->cur_desc;
 
 		if (sdesc->dir == DMA_DEV_TO_MEM)
 			pos = sprd_dma_get_dst_addr(schan);
@@ -771,7 +778,7 @@ static int sprd_dma_fill_desc(struct dma
 	temp |= slave_cfg->src_maxburst & SPRD_DMA_FRG_LEN_MASK;
 	hw->frg_len = temp;
 
-	hw->blk_len = len & SPRD_DMA_BLK_LEN_MASK;
+	hw->blk_len = slave_cfg->src_maxburst & SPRD_DMA_BLK_LEN_MASK;
 	hw->trsc_len = len & SPRD_DMA_TRSC_LEN_MASK;
 
 	temp = (dst_step & SPRD_DMA_TRSF_STEP_MASK) << SPRD_DMA_DEST_TRSF_STEP_OFFSET;
@@ -904,6 +911,12 @@ sprd_dma_prep_slave_sg(struct dma_chan *
 		schan->linklist.virt_addr = 0;
 	}
 
+	/* Set channel mode and trigger mode for 2-stage transfer */
+	schan->chn_mode =
+		(flags >> SPRD_DMA_CHN_MODE_SHIFT) & SPRD_DMA_CHN_MODE_MASK;
+	schan->trg_mode =
+		(flags >> SPRD_DMA_TRG_MODE_SHIFT) & SPRD_DMA_TRG_MODE_MASK;
+
 	sdesc = kzalloc(sizeof(*sdesc), GFP_NOWAIT);
 	if (!sdesc)
 		return NULL;
@@ -937,12 +950,6 @@ sprd_dma_prep_slave_sg(struct dma_chan *
 		}
 	}
 
-	/* Set channel mode and trigger mode for 2-stage transfer */
-	schan->chn_mode =
-		(flags >> SPRD_DMA_CHN_MODE_SHIFT) & SPRD_DMA_CHN_MODE_MASK;
-	schan->trg_mode =
-		(flags >> SPRD_DMA_TRG_MODE_SHIFT) & SPRD_DMA_TRG_MODE_MASK;
-
 	ret = sprd_dma_fill_desc(chan, &sdesc->chn_hw, 0, 0, src, dst, len,
 				 dir, flags, slave_cfg);
 	if (ret) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma/tegra210-adma.c linux-libre-5.1.21-gnu/drivers/dma/tegra210-adma.c
--- linux-libre-5.1-gnu/drivers/dma/tegra210-adma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma/tegra210-adma.c	2019-07-28 02:28:39.000000000 -0400
@@ -22,7 +22,6 @@
 #include <linux/of_device.h>
 #include <linux/of_dma.h>
 #include <linux/of_irq.h>
-#include <linux/pm_clock.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
@@ -141,6 +140,7 @@ struct tegra_adma {
 	struct dma_device		dma_dev;
 	struct device			*dev;
 	void __iomem			*base_addr;
+	struct clk			*ahub_clk;
 	unsigned int			nr_channels;
 	unsigned long			rx_requests_reserved;
 	unsigned long			tx_requests_reserved;
@@ -637,8 +637,9 @@ static int tegra_adma_runtime_suspend(st
 	struct tegra_adma *tdma = dev_get_drvdata(dev);
 
 	tdma->global_cmd = tdma_read(tdma, ADMA_GLOBAL_CMD);
+	clk_disable_unprepare(tdma->ahub_clk);
 
-	return pm_clk_suspend(dev);
+	return 0;
 }
 
 static int tegra_adma_runtime_resume(struct device *dev)
@@ -646,10 +647,11 @@ static int tegra_adma_runtime_resume(str
 	struct tegra_adma *tdma = dev_get_drvdata(dev);
 	int ret;
 
-	ret = pm_clk_resume(dev);
-	if (ret)
+	ret = clk_prepare_enable(tdma->ahub_clk);
+	if (ret) {
+		dev_err(dev, "ahub clk_enable failed: %d\n", ret);
 		return ret;
-
+	}
 	tdma_write(tdma, ADMA_GLOBAL_CMD, tdma->global_cmd);
 
 	return 0;
@@ -693,13 +695,11 @@ static int tegra_adma_probe(struct platf
 	if (IS_ERR(tdma->base_addr))
 		return PTR_ERR(tdma->base_addr);
 
-	ret = pm_clk_create(&pdev->dev);
-	if (ret)
-		return ret;
-
-	ret = of_pm_clk_add_clk(&pdev->dev, "d_audio");
-	if (ret)
-		goto clk_destroy;
+	tdma->ahub_clk = devm_clk_get(&pdev->dev, "d_audio");
+	if (IS_ERR(tdma->ahub_clk)) {
+		dev_err(&pdev->dev, "Error: Missing ahub controller clock\n");
+		return PTR_ERR(tdma->ahub_clk);
+	}
 
 	pm_runtime_enable(&pdev->dev);
 
@@ -776,8 +776,6 @@ rpm_put:
 	pm_runtime_put_sync(&pdev->dev);
 rpm_disable:
 	pm_runtime_disable(&pdev->dev);
-clk_destroy:
-	pm_clk_destroy(&pdev->dev);
 
 	return ret;
 }
@@ -787,6 +785,7 @@ static int tegra_adma_remove(struct plat
 	struct tegra_adma *tdma = platform_get_drvdata(pdev);
 	int i;
 
+	of_dma_controller_free(pdev->dev.of_node);
 	dma_async_device_unregister(&tdma->dma_dev);
 
 	for (i = 0; i < tdma->nr_channels; ++i)
@@ -794,7 +793,6 @@ static int tegra_adma_remove(struct plat
 
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-	pm_clk_destroy(&pdev->dev);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma-buf/dma-buf.c linux-libre-5.1.21-gnu/drivers/dma-buf/dma-buf.c
--- linux-libre-5.1-gnu/drivers/dma-buf/dma-buf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma-buf/dma-buf.c	2019-07-28 02:28:39.000000000 -0400
@@ -1068,6 +1068,7 @@ static int dma_buf_debug_show(struct seq
 				   fence->ops->get_driver_name(fence),
 				   fence->ops->get_timeline_name(fence),
 				   dma_fence_is_signaled(fence) ? "" : "un");
+			dma_fence_put(fence);
 		}
 		rcu_read_unlock();
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma-buf/reservation.c linux-libre-5.1.21-gnu/drivers/dma-buf/reservation.c
--- linux-libre-5.1-gnu/drivers/dma-buf/reservation.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma-buf/reservation.c	2019-07-28 02:28:39.000000000 -0400
@@ -357,6 +357,10 @@ int reservation_object_get_fences_rcu(st
 					   GFP_NOWAIT | __GFP_NOWARN);
 			if (!nshared) {
 				rcu_read_unlock();
+
+				dma_fence_put(fence_excl);
+				fence_excl = NULL;
+
 				nshared = krealloc(shared, sz, GFP_KERNEL);
 				if (nshared) {
 					shared = nshared;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/dma-buf/udmabuf.c linux-libre-5.1.21-gnu/drivers/dma-buf/udmabuf.c
--- linux-libre-5.1-gnu/drivers/dma-buf/udmabuf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/dma-buf/udmabuf.c	2019-07-28 02:28:39.000000000 -0400
@@ -77,6 +77,7 @@ static void unmap_udmabuf(struct dma_buf
 			  struct sg_table *sg,
 			  enum dma_data_direction direction)
 {
+	dma_unmap_sg(at->dev, sg->sgl, sg->nents, direction);
 	sg_free_table(sg);
 	kfree(sg);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/edac/edac_mc_sysfs.c linux-libre-5.1.21-gnu/drivers/edac/edac_mc_sysfs.c
--- linux-libre-5.1-gnu/drivers/edac/edac_mc_sysfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/edac/edac_mc_sysfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -26,7 +26,7 @@
 static int edac_mc_log_ue = 1;
 static int edac_mc_log_ce = 1;
 static int edac_mc_panic_on_ue;
-static int edac_mc_poll_msec = 1000;
+static unsigned int edac_mc_poll_msec = 1000;
 
 /* Getter functions for above */
 int edac_mc_get_log_ue(void)
@@ -45,30 +45,30 @@ int edac_mc_get_panic_on_ue(void)
 }
 
 /* this is temporary */
-int edac_mc_get_poll_msec(void)
+unsigned int edac_mc_get_poll_msec(void)
 {
 	return edac_mc_poll_msec;
 }
 
 static int edac_set_poll_msec(const char *val, const struct kernel_param *kp)
 {
-	unsigned long l;
+	unsigned int i;
 	int ret;
 
 	if (!val)
 		return -EINVAL;
 
-	ret = kstrtoul(val, 0, &l);
+	ret = kstrtouint(val, 0, &i);
 	if (ret)
 		return ret;
 
-	if (l < 1000)
+	if (i < 1000)
 		return -EINVAL;
 
-	*((unsigned long *)kp->arg) = l;
+	*((unsigned int *)kp->arg) = i;
 
 	/* notify edac_mc engine to reset the poll period */
-	edac_mc_reset_delay_period(l);
+	edac_mc_reset_delay_period(i);
 
 	return 0;
 }
@@ -82,7 +82,7 @@ MODULE_PARM_DESC(edac_mc_log_ue,
 module_param(edac_mc_log_ce, int, 0644);
 MODULE_PARM_DESC(edac_mc_log_ce,
 		 "Log correctable error to console: 0=off 1=on");
-module_param_call(edac_mc_poll_msec, edac_set_poll_msec, param_get_int,
+module_param_call(edac_mc_poll_msec, edac_set_poll_msec, param_get_uint,
 		  &edac_mc_poll_msec, 0644);
 MODULE_PARM_DESC(edac_mc_poll_msec, "Polling period in milliseconds");
 
@@ -404,6 +404,8 @@ static inline int nr_pages_per_csrow(str
 static int edac_create_csrow_object(struct mem_ctl_info *mci,
 				    struct csrow_info *csrow, int index)
 {
+	int err;
+
 	csrow->dev.type = &csrow_attr_type;
 	csrow->dev.groups = csrow_dev_groups;
 	device_initialize(&csrow->dev);
@@ -415,7 +417,11 @@ static int edac_create_csrow_object(stru
 	edac_dbg(0, "creating (virtual) csrow node %s\n",
 		 dev_name(&csrow->dev));
 
-	return device_add(&csrow->dev);
+	err = device_add(&csrow->dev);
+	if (err)
+		put_device(&csrow->dev);
+
+	return err;
 }
 
 /* Create a CSROW object under specifed edac_mc_device */
@@ -443,7 +449,8 @@ error:
 		csrow = mci->csrows[i];
 		if (!nr_pages_per_csrow(csrow))
 			continue;
-		put_device(&mci->csrows[i]->dev);
+
+		device_del(&mci->csrows[i]->dev);
 	}
 
 	return err;
@@ -645,9 +652,11 @@ static int edac_create_dimm_object(struc
 	dev_set_drvdata(&dimm->dev, dimm);
 	pm_runtime_forbid(&mci->dev);
 
-	err =  device_add(&dimm->dev);
+	err = device_add(&dimm->dev);
+	if (err)
+		put_device(&dimm->dev);
 
-	edac_dbg(0, "creating rank/dimm device %s\n", dev_name(&dimm->dev));
+	edac_dbg(0, "created rank/dimm device %s\n", dev_name(&dimm->dev));
 
 	return err;
 }
@@ -928,6 +937,7 @@ int edac_create_sysfs_mci_device(struct
 	err = device_add(&mci->dev);
 	if (err < 0) {
 		edac_dbg(1, "failure: create device %s\n", dev_name(&mci->dev));
+		put_device(&mci->dev);
 		goto out;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/edac/edac_module.h linux-libre-5.1.21-gnu/drivers/edac/edac_module.h
--- linux-libre-5.1-gnu/drivers/edac/edac_module.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/edac/edac_module.h	2019-07-28 02:28:39.000000000 -0400
@@ -36,7 +36,7 @@ extern int edac_mc_get_log_ue(void);
 extern int edac_mc_get_log_ce(void);
 extern int edac_mc_get_panic_on_ue(void);
 extern int edac_get_poll_msec(void);
-extern int edac_mc_get_poll_msec(void);
+extern unsigned int edac_mc_get_poll_msec(void);
 
 unsigned edac_dimm_info_location(struct dimm_info *dimm, char *buf,
 				 unsigned len);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/edac/Kconfig linux-libre-5.1.21-gnu/drivers/edac/Kconfig
--- linux-libre-5.1-gnu/drivers/edac/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/edac/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -263,8 +263,8 @@ config EDAC_PND2
 	  micro-server but may appear on others in the future.
 
 config EDAC_MPC85XX
-	tristate "Freescale MPC83xx / MPC85xx"
-	depends on FSL_SOC
+	bool "Freescale MPC83xx / MPC85xx"
+	depends on FSL_SOC && EDAC=y
 	help
 	  Support for error detection and correction on the Freescale
 	  MPC8349, MPC8560, MPC8540, MPC8548, T4240
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/edac/mce_amd.c linux-libre-5.1.21-gnu/drivers/edac/mce_amd.c
--- linux-libre-5.1-gnu/drivers/edac/mce_amd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/edac/mce_amd.c	2019-07-28 02:28:39.000000000 -0400
@@ -1004,7 +1004,7 @@ static inline void amd_decode_err_code(u
 /*
  * Filter out unwanted MCE signatures here.
  */
-static bool amd_filter_mce(struct mce *m)
+static bool ignore_mce(struct mce *m)
 {
 	/*
 	 * NB GART TLB error reporting is disabled by default.
@@ -1038,7 +1038,7 @@ amd_decode_mce(struct notifier_block *nb
 	unsigned int fam = x86_family(m->cpuid);
 	int ecc;
 
-	if (amd_filter_mce(m))
+	if (ignore_mce(m))
 		return NOTIFY_STOP;
 
 	pr_emerg(HW_ERR "%s\n", decode_error_status(m));
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/extcon/extcon-arizona.c linux-libre-5.1.21-gnu/drivers/extcon/extcon-arizona.c
--- linux-libre-5.1-gnu/drivers/extcon/extcon-arizona.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/extcon/extcon-arizona.c	2019-07-28 02:28:39.000000000 -0400
@@ -1726,6 +1726,16 @@ static int arizona_extcon_remove(struct
 	struct arizona_extcon_info *info = platform_get_drvdata(pdev);
 	struct arizona *arizona = info->arizona;
 	int jack_irq_rise, jack_irq_fall;
+	bool change;
+
+	regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
+				 ARIZONA_MICD_ENA, 0,
+				 &change);
+
+	if (change) {
+		regulator_disable(info->micvdd);
+		pm_runtime_put(info->dev);
+	}
 
 	gpiod_put(info->micd_pol_gpio);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/extcon/Kconfig linux-libre-5.1.21-gnu/drivers/extcon/Kconfig
--- linux-libre-5.1-gnu/drivers/extcon/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/extcon/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -30,7 +30,7 @@ config EXTCON_ARIZONA
 
 config EXTCON_AXP288
 	tristate "X-Power AXP288 EXTCON support"
-	depends on MFD_AXP20X && USB_SUPPORT && X86
+	depends on MFD_AXP20X && USB_SUPPORT && X86 && ACPI
 	select USB_ROLE_SWITCH
 	help
 	  Say Y here to enable support for USB peripheral detection
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/firmware/efi/efi-bgrt.c linux-libre-5.1.21-gnu/drivers/firmware/efi/efi-bgrt.c
--- linux-libre-5.1-gnu/drivers/firmware/efi/efi-bgrt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/firmware/efi/efi-bgrt.c	2019-07-28 02:28:39.000000000 -0400
@@ -47,11 +47,6 @@ void __init efi_bgrt_init(struct acpi_ta
 		       bgrt->version);
 		goto out;
 	}
-	if (bgrt->status & 0xfe) {
-		pr_notice("Ignoring BGRT: reserved status bits are non-zero %u\n",
-		       bgrt->status);
-		goto out;
-	}
 	if (bgrt->image_type != 0) {
 		pr_notice("Ignoring BGRT: invalid image type %u (expected 0)\n",
 		       bgrt->image_type);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/firmware/efi/efi.c linux-libre-5.1.21-gnu/drivers/firmware/efi/efi.c
--- linux-libre-5.1-gnu/drivers/firmware/efi/efi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/firmware/efi/efi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1007,14 +1007,16 @@ int __ref efi_mem_reserve_persistent(phy
 
 	/* first try to find a slot in an existing linked list entry */
 	for (prsv = efi_memreserve_root->next; prsv; prsv = rsv->next) {
-		rsv = __va(prsv);
+		rsv = memremap(prsv, sizeof(*rsv), MEMREMAP_WB);
 		index = atomic_fetch_add_unless(&rsv->count, 1, rsv->size);
 		if (index < rsv->size) {
 			rsv->entry[index].base = addr;
 			rsv->entry[index].size = size;
 
+			memunmap(rsv);
 			return 0;
 		}
+		memunmap(rsv);
 	}
 
 	/* no slot found - allocate a new linked list entry */
@@ -1022,7 +1024,13 @@ int __ref efi_mem_reserve_persistent(phy
 	if (!rsv)
 		return -ENOMEM;
 
-	rsv->size = EFI_MEMRESERVE_COUNT(PAGE_SIZE);
+	/*
+	 * The memremap() call above assumes that a linux_efi_memreserve entry
+	 * never crosses a page boundary, so let's ensure that this remains true
+	 * even when kexec'ing a 4k pages kernel from a >4k pages kernel, by
+	 * using SZ_4K explicitly in the size calculation below.
+	 */
+	rsv->size = EFI_MEMRESERVE_COUNT(SZ_4K);
 	atomic_set(&rsv->count, 1);
 	rsv->entry[0].base = addr;
 	rsv->entry[0].size = size;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/fpga/dfl-afu-dma-region.c linux-libre-5.1.21-gnu/drivers/fpga/dfl-afu-dma-region.c
--- linux-libre-5.1-gnu/drivers/fpga/dfl-afu-dma-region.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/fpga/dfl-afu-dma-region.c	2019-07-28 02:28:39.000000000 -0400
@@ -399,7 +399,7 @@ int afu_dma_map_region(struct dfl_featur
 				    region->pages[0], 0,
 				    region->length,
 				    DMA_BIDIRECTIONAL);
-	if (dma_mapping_error(&pdata->dev->dev, region->iova)) {
+	if (dma_mapping_error(dfl_fpga_pdata_to_parent(pdata), region->iova)) {
 		dev_err(&pdata->dev->dev, "failed to map for dma\n");
 		ret = -EFAULT;
 		goto unpin_pages;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/fpga/dfl.c linux-libre-5.1.21-gnu/drivers/fpga/dfl.c
--- linux-libre-5.1-gnu/drivers/fpga/dfl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/fpga/dfl.c	2019-07-28 02:28:39.000000000 -0400
@@ -40,6 +40,13 @@ enum dfl_fpga_devt_type {
 	DFL_FPGA_DEVT_MAX,
 };
 
+static struct lock_class_key dfl_pdata_keys[DFL_ID_MAX];
+
+static const char *dfl_pdata_key_strings[DFL_ID_MAX] = {
+	"dfl-fme-pdata",
+	"dfl-port-pdata",
+};
+
 /**
  * dfl_dev_info - dfl feature device information.
  * @name: name string of the feature platform device.
@@ -443,11 +450,16 @@ static int build_info_commit_dev(struct
 	struct platform_device *fdev = binfo->feature_dev;
 	struct dfl_feature_platform_data *pdata;
 	struct dfl_feature_info *finfo, *p;
+	enum dfl_id_type type;
 	int ret, index = 0;
 
 	if (!fdev)
 		return 0;
 
+	type = feature_dev_id_type(fdev);
+	if (WARN_ON_ONCE(type >= DFL_ID_MAX))
+		return -EINVAL;
+
 	/*
 	 * we do not need to care for the memory which is associated with
 	 * the platform device. After calling platform_device_unregister(),
@@ -463,6 +475,8 @@ static int build_info_commit_dev(struct
 	pdata->num = binfo->feature_num;
 	pdata->dfl_cdev = binfo->cdev;
 	mutex_init(&pdata->lock);
+	lockdep_set_class_and_name(&pdata->lock, &dfl_pdata_keys[type],
+				   dfl_pdata_key_strings[type]);
 
 	/*
 	 * the count should be initialized to 0 to make sure
@@ -497,7 +511,7 @@ static int build_info_commit_dev(struct
 
 	ret = platform_device_add(binfo->feature_dev);
 	if (!ret) {
-		if (feature_dev_id_type(binfo->feature_dev) == PORT_ID)
+		if (type == PORT_ID)
 			dfl_fpga_cdev_add_port_dev(binfo->cdev,
 						   binfo->feature_dev);
 		else
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/fpga/stratix10-soc.c linux-libre-5.1.21-gnu/drivers/fpga/stratix10-soc.c
--- linux-libre-5.1-gnu/drivers/fpga/stratix10-soc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/fpga/stratix10-soc.c	2019-07-28 02:28:39.000000000 -0400
@@ -507,12 +507,16 @@ static int __init s10_init(void)
 	if (!fw_np)
 		return -ENODEV;
 
+	of_node_get(fw_np);
 	np = of_find_matching_node(fw_np, s10_of_match);
-	if (!np)
+	if (!np) {
+		of_node_put(fw_np);
 		return -ENODEV;
+	}
 
 	of_node_put(np);
 	ret = of_platform_populate(fw_np, s10_of_match, NULL, NULL);
+	of_node_put(fw_np);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpio/gpio-davinci.c linux-libre-5.1.21-gnu/drivers/gpio/gpio-davinci.c
--- linux-libre-5.1-gnu/drivers/gpio/gpio-davinci.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpio/gpio-davinci.c	2019-07-28 02:28:39.000000000 -0400
@@ -242,8 +242,9 @@ static int davinci_gpio_probe(struct pla
 	for (i = 0; i < nirq; i++) {
 		chips->irqs[i] = platform_get_irq(pdev, i);
 		if (chips->irqs[i] < 0) {
-			dev_info(dev, "IRQ not populated, err = %d\n",
-				 chips->irqs[i]);
+			if (chips->irqs[i] != -EPROBE_DEFER)
+				dev_info(dev, "IRQ not populated, err = %d\n",
+					 chips->irqs[i]);
 			return chips->irqs[i];
 		}
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpio/gpiolib.c linux-libre-5.1.21-gnu/drivers/gpio/gpiolib.c
--- linux-libre-5.1-gnu/drivers/gpio/gpiolib.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpio/gpiolib.c	2019-07-28 02:28:39.000000000 -0400
@@ -3012,7 +3012,7 @@ int gpiod_get_array_value_complex(bool r
 int gpiod_get_raw_value(const struct gpio_desc *desc)
 {
 	VALIDATE_DESC(desc);
-	/* Should be using gpio_get_value_cansleep() */
+	/* Should be using gpiod_get_raw_value_cansleep() */
 	WARN_ON(desc->gdev->chip->can_sleep);
 	return gpiod_get_raw_value_commit(desc);
 }
@@ -3033,7 +3033,7 @@ int gpiod_get_value(const struct gpio_de
 	int value;
 
 	VALIDATE_DESC(desc);
-	/* Should be using gpio_get_value_cansleep() */
+	/* Should be using gpiod_get_value_cansleep() */
 	WARN_ON(desc->gdev->chip->can_sleep);
 
 	value = gpiod_get_raw_value_commit(desc);
@@ -3304,7 +3304,7 @@ int gpiod_set_array_value_complex(bool r
 void gpiod_set_raw_value(struct gpio_desc *desc, int value)
 {
 	VALIDATE_DESC_VOID(desc);
-	/* Should be using gpiod_set_value_cansleep() */
+	/* Should be using gpiod_set_raw_value_cansleep() */
 	WARN_ON(desc->gdev->chip->can_sleep);
 	gpiod_set_raw_value_commit(desc, value);
 }
@@ -3345,6 +3345,7 @@ static void gpiod_set_value_nocheck(stru
 void gpiod_set_value(struct gpio_desc *desc, int value)
 {
 	VALIDATE_DESC_VOID(desc);
+	/* Should be using gpiod_set_value_cansleep() */
 	WARN_ON(desc->gdev->chip->can_sleep);
 	gpiod_set_value_nocheck(desc, value);
 }
@@ -4232,8 +4233,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_index);
  *
  * Returns:
  * On successful request the GPIO pin is configured in accordance with
- * provided @dflags. If the node does not have the requested GPIO
- * property, NULL is returned.
+ * provided @dflags.
  *
  * In case of error an ERR_PTR() is returned.
  */
@@ -4255,9 +4255,6 @@ struct gpio_desc *gpiod_get_from_of_node
 					index, &flags);
 
 	if (!desc || IS_ERR(desc)) {
-		/* If it is not there, just return NULL */
-		if (PTR_ERR(desc) == -ENOENT)
-			return NULL;
 		return desc;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpio/gpiolib-of.c linux-libre-5.1.21-gnu/drivers/gpio/gpiolib-of.c
--- linux-libre-5.1-gnu/drivers/gpio/gpiolib-of.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpio/gpiolib-of.c	2019-07-28 02:28:39.000000000 -0400
@@ -155,6 +155,7 @@ static void of_gpio_flags_quirks(struct
 							of_node_full_name(child));
 					*flags |= OF_GPIO_ACTIVE_LOW;
 				}
+				of_node_put(child);
 				break;
 			}
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpio/gpio-omap.c linux-libre-5.1.21-gnu/drivers/gpio/gpio-omap.c
--- linux-libre-5.1-gnu/drivers/gpio/gpio-omap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpio/gpio-omap.c	2019-07-28 02:28:39.000000000 -0400
@@ -353,6 +353,22 @@ static void omap_clear_gpio_debounce(str
 	}
 }
 
+/*
+ * Off mode wake-up capable GPIOs in bank(s) that are in the wakeup domain.
+ * See TRM section for GPIO for "Wake-Up Generation" for the list of GPIOs
+ * in wakeup domain. If bank->non_wakeup_gpios is not configured, assume none
+ * are capable waking up the system from off mode.
+ */
+static bool omap_gpio_is_off_wakeup_capable(struct gpio_bank *bank, u32 gpio_mask)
+{
+	u32 no_wake = bank->non_wakeup_gpios;
+
+	if (no_wake)
+		return !!(~no_wake & gpio_mask);
+
+	return false;
+}
+
 static inline void omap_set_gpio_trigger(struct gpio_bank *bank, int gpio,
 						unsigned trigger)
 {
@@ -384,13 +400,7 @@ static inline void omap_set_gpio_trigger
 	}
 
 	/* This part needs to be executed always for OMAP{34xx, 44xx} */
-	if (!bank->regs->irqctrl) {
-		/* On omap24xx proceed only when valid GPIO bit is set */
-		if (bank->non_wakeup_gpios) {
-			if (!(bank->non_wakeup_gpios & gpio_bit))
-				goto exit;
-		}
-
+	if (!bank->regs->irqctrl && !omap_gpio_is_off_wakeup_capable(bank, gpio)) {
 		/*
 		 * Log the edge gpio and manually trigger the IRQ
 		 * after resume if the input level changes
@@ -403,7 +413,6 @@ static inline void omap_set_gpio_trigger
 			bank->enabled_non_wakeup_gpios &= ~gpio_bit;
 	}
 
-exit:
 	bank->level_mask =
 		readl_relaxed(bank->base + bank->regs->leveldetect0) |
 		readl_relaxed(bank->base + bank->regs->leveldetect1);
@@ -829,9 +838,9 @@ static void omap_gpio_irq_shutdown(struc
 
 	raw_spin_lock_irqsave(&bank->lock, flags);
 	bank->irq_usage &= ~(BIT(offset));
-	omap_set_gpio_irqenable(bank, offset, 0);
-	omap_clear_gpio_irqstatus(bank, offset);
 	omap_set_gpio_triggering(bank, offset, IRQ_TYPE_NONE);
+	omap_clear_gpio_irqstatus(bank, offset);
+	omap_set_gpio_irqenable(bank, offset, 0);
 	if (!LINE_USED(bank->mod_usage, offset))
 		omap_clear_gpio_debounce(bank, offset);
 	omap_disable_gpio_module(bank, offset);
@@ -867,8 +876,8 @@ static void omap_gpio_mask_irq(struct ir
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&bank->lock, flags);
-	omap_set_gpio_irqenable(bank, offset, 0);
 	omap_set_gpio_triggering(bank, offset, IRQ_TYPE_NONE);
+	omap_set_gpio_irqenable(bank, offset, 0);
 	raw_spin_unlock_irqrestore(&bank->lock, flags);
 }
 
@@ -880,9 +889,6 @@ static void omap_gpio_unmask_irq(struct
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&bank->lock, flags);
-	if (trigger)
-		omap_set_gpio_triggering(bank, offset, trigger);
-
 	omap_set_gpio_irqenable(bank, offset, 1);
 
 	/*
@@ -890,9 +896,13 @@ static void omap_gpio_unmask_irq(struct
 	 * is cleared, thus after the handler has run. OMAP4 needs this done
 	 * after enabing the interrupt to clear the wakeup status.
 	 */
-	if (bank->level_mask & BIT(offset))
+	if (bank->regs->leveldetect0 && bank->regs->wkup_en &&
+	    trigger & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
 		omap_clear_gpio_irqstatus(bank, offset);
 
+	if (trigger)
+		omap_set_gpio_triggering(bank, offset, trigger);
+
 	raw_spin_unlock_irqrestore(&bank->lock, flags);
 }
 
@@ -1444,7 +1454,10 @@ static void omap_gpio_restore_context(st
 static void omap_gpio_idle(struct gpio_bank *bank, bool may_lose_context)
 {
 	struct device *dev = bank->chip.parent;
-	u32 l1 = 0, l2 = 0;
+	void __iomem *base = bank->base;
+	u32 mask, nowake;
+
+	bank->saved_datain = readl_relaxed(base + bank->regs->datain);
 
 	if (bank->funcs.idle_enable_level_quirk)
 		bank->funcs.idle_enable_level_quirk(bank);
@@ -1452,24 +1465,29 @@ static void omap_gpio_idle(struct gpio_b
 	if (!bank->enabled_non_wakeup_gpios)
 		goto update_gpio_context_count;
 
+	/* Check for pending EDGE_FALLING, ignore EDGE_BOTH */
+	mask = bank->enabled_non_wakeup_gpios & bank->context.fallingdetect;
+	mask &= ~bank->context.risingdetect;
+	bank->saved_datain |= mask;
+
+	/* Check for pending EDGE_RISING, ignore EDGE_BOTH */
+	mask = bank->enabled_non_wakeup_gpios & bank->context.risingdetect;
+	mask &= ~bank->context.fallingdetect;
+	bank->saved_datain &= ~mask;
+
 	if (!may_lose_context)
 		goto update_gpio_context_count;
 
 	/*
-	 * If going to OFF, remove triggering for all
+	 * If going to OFF, remove triggering for all wkup domain
 	 * non-wakeup GPIOs.  Otherwise spurious IRQs will be
 	 * generated.  See OMAP2420 Errata item 1.101.
 	 */
-	bank->saved_datain = readl_relaxed(bank->base +
-						bank->regs->datain);
-	l1 = bank->context.fallingdetect;
-	l2 = bank->context.risingdetect;
-
-	l1 &= ~bank->enabled_non_wakeup_gpios;
-	l2 &= ~bank->enabled_non_wakeup_gpios;
-
-	writel_relaxed(l1, bank->base + bank->regs->fallingdetect);
-	writel_relaxed(l2, bank->base + bank->regs->risingdetect);
+	if (!bank->loses_context && bank->enabled_non_wakeup_gpios) {
+		nowake = bank->enabled_non_wakeup_gpios;
+		omap_gpio_rmw(base, bank->regs->fallingdetect, nowake, ~nowake);
+		omap_gpio_rmw(base, bank->regs->risingdetect, nowake, ~nowake);
+	}
 
 	bank->workaround_enabled = true;
 
@@ -1518,6 +1536,12 @@ static void omap_gpio_unidle(struct gpio
 				return;
 			}
 		}
+	} else {
+		/* Restore changes done for OMAP2420 errata 1.101 */
+		writel_relaxed(bank->context.fallingdetect,
+			       bank->base + bank->regs->fallingdetect);
+		writel_relaxed(bank->context.risingdetect,
+			       bank->base + bank->regs->risingdetect);
 	}
 
 	if (!bank->workaround_enabled)
@@ -1715,6 +1739,8 @@ static struct omap_gpio_reg_offs omap4_g
 	.clr_dataout =		OMAP4_GPIO_CLEARDATAOUT,
 	.irqstatus =		OMAP4_GPIO_IRQSTATUS0,
 	.irqstatus2 =		OMAP4_GPIO_IRQSTATUS1,
+	.irqstatus_raw0 =	OMAP4_GPIO_IRQSTATUSRAW0,
+	.irqstatus_raw1 =	OMAP4_GPIO_IRQSTATUSRAW1,
 	.irqenable =		OMAP4_GPIO_IRQSTATUSSET0,
 	.irqenable2 =		OMAP4_GPIO_IRQSTATUSSET1,
 	.set_irqenable =	OMAP4_GPIO_IRQSTATUSSET0,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpio/gpio-pca953x.c linux-libre-5.1.21-gnu/drivers/gpio/gpio-pca953x.c
--- linux-libre-5.1-gnu/drivers/gpio/gpio-pca953x.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpio/gpio-pca953x.c	2019-07-28 02:28:39.000000000 -0400
@@ -306,7 +306,8 @@ static const struct regmap_config pca953
 	.volatile_reg = pca953x_volatile_register,
 
 	.cache_type = REGCACHE_RBTREE,
-	.max_register = 0x7f,
+	/* REVISIT: should be 0x7f but some 24 bit chips use REG_ADDR_AI */
+	.max_register = 0xff,
 };
 
 static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpio/gpio-vf610.c linux-libre-5.1.21-gnu/drivers/gpio/gpio-vf610.c
--- linux-libre-5.1-gnu/drivers/gpio/gpio-vf610.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpio/gpio-vf610.c	2019-07-28 02:28:39.000000000 -0400
@@ -29,6 +29,7 @@ struct fsl_gpio_soc_data {
 
 struct vf610_gpio_port {
 	struct gpio_chip gc;
+	struct irq_chip ic;
 	void __iomem *base;
 	void __iomem *gpio_base;
 	const struct fsl_gpio_soc_data *sdata;
@@ -60,8 +61,6 @@ struct vf610_gpio_port {
 #define PORT_INT_EITHER_EDGE	0xb
 #define PORT_INT_LOGIC_ONE	0xc
 
-static struct irq_chip vf610_gpio_irq_chip;
-
 static const struct fsl_gpio_soc_data imx_data = {
 	.have_paddr = true,
 };
@@ -237,15 +236,6 @@ static int vf610_gpio_irq_set_wake(struc
 	return 0;
 }
 
-static struct irq_chip vf610_gpio_irq_chip = {
-	.name		= "gpio-vf610",
-	.irq_ack	= vf610_gpio_irq_ack,
-	.irq_mask	= vf610_gpio_irq_mask,
-	.irq_unmask	= vf610_gpio_irq_unmask,
-	.irq_set_type	= vf610_gpio_irq_set_type,
-	.irq_set_wake	= vf610_gpio_irq_set_wake,
-};
-
 static int vf610_gpio_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -253,6 +243,7 @@ static int vf610_gpio_probe(struct platf
 	struct vf610_gpio_port *port;
 	struct resource *iores;
 	struct gpio_chip *gc;
+	struct irq_chip *ic;
 	int i;
 	int ret;
 
@@ -316,6 +307,14 @@ static int vf610_gpio_probe(struct platf
 	gc->direction_output = vf610_gpio_direction_output;
 	gc->set = vf610_gpio_set;
 
+	ic = &port->ic;
+	ic->name = "gpio-vf610";
+	ic->irq_ack = vf610_gpio_irq_ack;
+	ic->irq_mask = vf610_gpio_irq_mask;
+	ic->irq_unmask = vf610_gpio_irq_unmask;
+	ic->irq_set_type = vf610_gpio_irq_set_type;
+	ic->irq_set_wake = vf610_gpio_irq_set_wake;
+
 	ret = gpiochip_add_data(gc, port);
 	if (ret < 0)
 		return ret;
@@ -327,14 +326,13 @@ static int vf610_gpio_probe(struct platf
 	/* Clear the interrupt status register for all GPIO's */
 	vf610_gpio_writel(~0, port->base + PORT_ISFR);
 
-	ret = gpiochip_irqchip_add(gc, &vf610_gpio_irq_chip, 0,
-				   handle_edge_irq, IRQ_TYPE_NONE);
+	ret = gpiochip_irqchip_add(gc, ic, 0, handle_edge_irq, IRQ_TYPE_NONE);
 	if (ret) {
 		dev_err(dev, "failed to add irqchip\n");
 		gpiochip_remove(gc);
 		return ret;
 	}
-	gpiochip_set_chained_irqchip(gc, &vf610_gpio_irq_chip, port->irq,
+	gpiochip_set_chained_irqchip(gc, ic, port->irq,
 				     vf610_gpio_irq_handler);
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpio/Kconfig linux-libre-5.1.21-gnu/drivers/gpio/Kconfig
--- linux-libre-5.1-gnu/drivers/gpio/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpio/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -824,6 +824,7 @@ config GPIO_ADP5588
 config GPIO_ADP5588_IRQ
 	bool "Interrupt controller support for ADP5588"
 	depends on GPIO_ADP5588=y
+	select GPIOLIB_IRQCHIP
 	help
 	  Say yes here to enable the adp5588 to be used as an interrupt
 	  controller. It requires the driver to be built in the kernel.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c	2019-07-28 02:28:39.000000000 -0400
@@ -464,8 +464,7 @@ static int amdgpu_atif_handler(struct am
 			}
 		}
 		if (req.pending & ATIF_DGPU_DISPLAY_EVENT) {
-			if ((adev->flags & AMD_IS_PX) &&
-			    amdgpu_atpx_dgpu_req_power_for_displays()) {
+			if (adev->flags & AMD_IS_PX) {
 				pm_runtime_get_sync(adev->ddev->dev);
 				/* Just fire off a uevent and let userspace tell us what to do */
 				drm_helper_hpd_irq_event(adev->ddev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c	2019-07-28 02:28:39.000000000 -0400
@@ -136,8 +136,9 @@ int amdgpu_fence_emit(struct amdgpu_ring
 {
 	struct amdgpu_device *adev = ring->adev;
 	struct amdgpu_fence *fence;
-	struct dma_fence *old, **ptr;
+	struct dma_fence __rcu **ptr;
 	uint32_t seq;
+	int r;
 
 	fence = kmem_cache_alloc(amdgpu_fence_slab, GFP_KERNEL);
 	if (fence == NULL)
@@ -153,15 +154,24 @@ int amdgpu_fence_emit(struct amdgpu_ring
 			       seq, flags | AMDGPU_FENCE_FLAG_INT);
 
 	ptr = &ring->fence_drv.fences[seq & ring->fence_drv.num_fences_mask];
+	if (unlikely(rcu_dereference_protected(*ptr, 1))) {
+		struct dma_fence *old;
+
+		rcu_read_lock();
+		old = dma_fence_get_rcu_safe(ptr);
+		rcu_read_unlock();
+
+		if (old) {
+			r = dma_fence_wait(old, false);
+			dma_fence_put(old);
+			if (r)
+				return r;
+		}
+	}
+
 	/* This function can't be called concurrently anyway, otherwise
 	 * emitting the fence would mess up the hardware ring buffer.
 	 */
-	old = rcu_dereference_protected(*ptr, 1);
-	if (old && !dma_fence_is_signaled(old)) {
-		DRM_INFO("rcu slot is busy\n");
-		dma_fence_wait(old, false);
-	}
-
 	rcu_assign_pointer(*ptr, dma_fence_get(&fence->base));
 
 	*f = &fence->base;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c	2019-07-28 02:28:39.000000000 -0400
@@ -38,18 +38,10 @@ static void psp_set_funcs(struct amdgpu_
 static int psp_early_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct psp_context *psp = &adev->psp;
 
 	psp_set_funcs(adev);
 
-	return 0;
-}
-
-static int psp_sw_init(void *handle)
-{
-	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-	struct psp_context *psp = &adev->psp;
-	int ret;
-
 	switch (adev->asic_type) {
 	case CHIP_VEGA10:
 	case CHIP_VEGA12:
@@ -67,6 +59,15 @@ static int psp_sw_init(void *handle)
 
 	psp->adev = adev;
 
+	return 0;
+}
+
+static int psp_sw_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	struct psp_context *psp = &adev->psp;
+	int ret;
+
 	ret = psp_init_microcode(psp);
 	if (ret) {
 		DRM_ERROR("Failed to load psp firmware!\n");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c	2019-05-05 21:20:46.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c	2019-07-28 13:21:49.000000000 -0400
@@ -1057,7 +1057,7 @@ void amdgpu_vce_ring_emit_fence(struct a
 int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring)
 {
 	struct amdgpu_device *adev = ring->adev;
-	uint32_t rptr = amdgpu_ring_get_rptr(ring);
+	uint32_t rptr;
 	unsigned i;
 	int r, timeout = adev->usec_timeout;
 
@@ -1069,6 +1069,8 @@ int amdgpu_vce_ring_test_ring(struct amd
 	if (r)
 		return r;
 
+	rptr = amdgpu_ring_get_rptr(ring);
+
 	amdgpu_ring_write(ring, VCE_CMD_END);
 	amdgpu_ring_commit(ring);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c	2019-05-05 21:20:49.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c	2019-07-28 13:21:53.000000000 -0400
@@ -592,7 +592,7 @@ error:
 int amdgpu_vcn_enc_ring_test_ring(struct amdgpu_ring *ring)
 {
 	struct amdgpu_device *adev = ring->adev;
-	uint32_t rptr = amdgpu_ring_get_rptr(ring);
+	uint32_t rptr;
 	unsigned i;
 	int r;
 
@@ -600,6 +600,8 @@ int amdgpu_vcn_enc_ring_test_ring(struct
 	if (r)
 		return r;
 
+	rptr = amdgpu_ring_get_rptr(ring);
+
 	amdgpu_ring_write(ring, VCN_ENC_CMD_END);
 	amdgpu_ring_commit(ring);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c	2019-05-05 21:21:03.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c	2019-07-28 13:22:07.000000000 -0400
@@ -1858,25 +1858,6 @@ static void gfx_v9_0_constants_init(stru
 	mutex_unlock(&adev->srbm_mutex);
 
 	gfx_v9_0_init_compute_vmid(adev);
-
-	mutex_lock(&adev->grbm_idx_mutex);
-	/*
-	 * making sure that the following register writes will be broadcasted
-	 * to all the shaders
-	 */
-	gfx_v9_0_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff);
-
-	WREG32_SOC15(GC, 0, mmPA_SC_FIFO_SIZE,
-		   (adev->gfx.config.sc_prim_fifo_size_frontend <<
-			PA_SC_FIFO_SIZE__SC_FRONTEND_PRIM_FIFO_SIZE__SHIFT) |
-		   (adev->gfx.config.sc_prim_fifo_size_backend <<
-			PA_SC_FIFO_SIZE__SC_BACKEND_PRIM_FIFO_SIZE__SHIFT) |
-		   (adev->gfx.config.sc_hiz_tile_fifo_size <<
-			PA_SC_FIFO_SIZE__SC_HIZ_TILE_FIFO_SIZE__SHIFT) |
-		   (adev->gfx.config.sc_earlyz_tile_fifo_size <<
-			PA_SC_FIFO_SIZE__SC_EARLYZ_TILE_FIFO_SIZE__SHIFT));
-	mutex_unlock(&adev->grbm_idx_mutex);
-
 }
 
 static void gfx_v9_0_wait_for_rlc_serdes(struct amdgpu_device *adev)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c	2019-07-28 02:28:39.000000000 -0400
@@ -715,6 +715,7 @@ static bool gmc_v9_0_keep_stolen_memory(
 	case CHIP_VEGA10:
 		return true;
 	case CHIP_RAVEN:
+		return (adev->pdev->device == 0x15d8);
 	case CHIP_VEGA12:
 	case CHIP_VEGA20:
 	default:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/Makefile linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/Makefile
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -23,7 +23,7 @@
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
 
-FULL_AMD_PATH=$(src)/..
+FULL_AMD_PATH=$(srctree)/$(src)/..
 DISPLAY_FOLDER_NAME=display
 FULL_AMD_DISPLAY_PATH = $(FULL_AMD_PATH)/$(DISPLAY_FOLDER_NAME)
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/soc15.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/soc15.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/soc15.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/soc15.c	2019-07-28 02:28:39.000000000 -0400
@@ -713,6 +713,11 @@ static bool soc15_need_reset_on_init(str
 {
 	u32 sol_reg;
 
+	/* Just return false for soc15 GPUs.  Reset does not seem to
+	 * be necessary.
+	 */
+	return false;
+
 	if (adev->flags & AMD_IS_APU)
 		return false;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c	2019-07-28 02:28:39.000000000 -0400
@@ -170,13 +170,16 @@ static void uvd_v6_0_enc_ring_set_wptr(s
 static int uvd_v6_0_enc_ring_test_ring(struct amdgpu_ring *ring)
 {
 	struct amdgpu_device *adev = ring->adev;
-	uint32_t rptr = amdgpu_ring_get_rptr(ring);
+	uint32_t rptr;
 	unsigned i;
 	int r;
 
 	r = amdgpu_ring_alloc(ring, 16);
 	if (r)
 		return r;
+
+	rptr = amdgpu_ring_get_rptr(ring);
+
 	amdgpu_ring_write(ring, HEVC_ENC_CMD_END);
 	amdgpu_ring_commit(ring);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c	2019-07-28 02:28:39.000000000 -0400
@@ -175,7 +175,7 @@ static void uvd_v7_0_enc_ring_set_wptr(s
 static int uvd_v7_0_enc_ring_test_ring(struct amdgpu_ring *ring)
 {
 	struct amdgpu_device *adev = ring->adev;
-	uint32_t rptr = amdgpu_ring_get_rptr(ring);
+	uint32_t rptr;
 	unsigned i;
 	int r;
 
@@ -185,6 +185,9 @@ static int uvd_v7_0_enc_ring_test_ring(s
 	r = amdgpu_ring_alloc(ring, 16);
 	if (r)
 		return r;
+
+	rptr = amdgpu_ring_get_rptr(ring);
+
 	amdgpu_ring_write(ring, HEVC_ENC_CMD_END);
 	amdgpu_ring_commit(ring);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c	2019-05-05 21:21:46.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c	2019-07-28 13:22:53.000000000 -0400
@@ -3587,6 +3587,8 @@ static void dm_drm_plane_reset(struct dr
 		plane->state = &amdgpu_state->base;
 		plane->state->plane = plane;
 		plane->state->rotation = DRM_MODE_ROTATE_0;
+		plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE;
+		plane->state->pixel_blend_mode = DRM_MODE_BLEND_PREMULTI;
 	}
 }
 
@@ -3787,8 +3789,7 @@ static void dm_plane_atomic_async_update
 	struct drm_plane_state *old_state =
 		drm_atomic_get_old_plane_state(new_state->state, plane);
 
-	if (plane->state->fb != new_state->fb)
-		drm_atomic_set_fb_for_plane(plane->state, new_state->fb);
+	swap(plane->state->fb, new_state->fb);
 
 	plane->state->src_x = new_state->src_x;
 	plane->state->src_y = new_state->src_y;
@@ -4953,8 +4954,7 @@ cleanup:
 static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state,
 						struct dc_stream_state *stream_state)
 {
-	stream_state->mode_changed =
-		crtc_state->mode_changed || crtc_state->active_changed;
+	stream_state->mode_changed = drm_atomic_crtc_needs_modeset(crtc_state);
 }
 
 static int amdgpu_dm_atomic_commit(struct drm_device *dev,
@@ -5661,6 +5661,9 @@ skip_modeset:
 		update_stream_scaling_settings(
 			&new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream);
 
+	/* ABM settings */
+	dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level;
+
 	/*
 	 * Color management settings. We also update color properties
 	 * when a modeset is needed, to ensure it gets reprogrammed.
@@ -5858,7 +5861,9 @@ dm_determine_update_type_for_commit(stru
 	}
 
 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
-		struct dc_stream_update stream_update = { 0 };
+		struct dc_stream_update stream_update;
+
+		memset(&stream_update, 0, sizeof(stream_update));
 
 		new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
 		old_dm_crtc_state = to_dm_crtc_state(old_crtc_state);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/core/dc.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/core/dc.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/core/dc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/core/dc.c	2019-07-28 02:28:39.000000000 -0400
@@ -524,6 +524,14 @@ void dc_link_set_preferred_link_settings
 	struct dc_stream_state *link_stream;
 	struct dc_link_settings store_settings = *link_setting;
 
+	link->preferred_link_setting = store_settings;
+
+	/* Retrain with preferred link settings only relevant for
+	 * DP signal type
+	 */
+	if (!dc_is_dp_signal(link->connector_signal))
+		return;
+
 	for (i = 0; i < MAX_PIPES; i++) {
 		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
 		if (pipe->stream && pipe->stream->link) {
@@ -538,7 +546,10 @@ void dc_link_set_preferred_link_settings
 
 	link_stream = link->dc->current_state->res_ctx.pipe_ctx[i].stream;
 
-	link->preferred_link_setting = store_settings;
+	/* Cannot retrain link if backend is off */
+	if (link_stream->dpms_off)
+		return;
+
 	if (link_stream)
 		decide_link_settings(link_stream, &store_settings);
 
@@ -1666,6 +1677,7 @@ static void commit_planes_do_stream_upda
 				continue;
 
 			if (stream_update->dpms_off) {
+				dc->hwss.pipe_control_lock(dc, pipe_ctx, true);
 				if (*stream_update->dpms_off) {
 					core_link_disable_stream(pipe_ctx, KEEP_ACQUIRED_RESOURCE);
 					dc->hwss.optimize_bandwidth(dc, dc->current_state);
@@ -1673,6 +1685,7 @@ static void commit_planes_do_stream_upda
 					dc->hwss.prepare_bandwidth(dc, dc->current_state);
 					core_link_enable_stream(dc->current_state, pipe_ctx);
 				}
+				dc->hwss.pipe_control_lock(dc, pipe_ctx, false);
 			}
 
 			if (stream_update->abm_level && pipe_ctx->stream_res.abm) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/core/dc_link.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/core/dc_link.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/core/dc_link.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/core/dc_link.c	2019-07-28 02:28:39.000000000 -0400
@@ -1399,6 +1399,15 @@ static enum dc_status enable_link_dp(
 	/* get link settings for video mode timing */
 	decide_link_settings(stream, &link_settings);
 
+	/* If link settings are different than current and link already enabled
+	 * then need to disable before programming to new rate.
+	 */
+	if (link->link_status.link_active &&
+		(link->cur_link_settings.lane_count != link_settings.lane_count ||
+		 link->cur_link_settings.link_rate != link_settings.link_rate)) {
+		dp_disable_link_phy(link, pipe_ctx->stream->signal);
+	}
+
 	pipe_ctx->stream_res.pix_clk_params.requested_sym_clk =
 			link_settings.link_rate * LINK_RATE_REF_FREQ_IN_KHZ;
 	state->dccg->funcs->update_clocks(state->dccg, state, false);
@@ -2074,11 +2083,28 @@ static void disable_link(struct dc_link
 	}
 }
 
+static uint32_t get_timing_pixel_clock_100hz(const struct dc_crtc_timing *timing)
+{
+
+	uint32_t pxl_clk = timing->pix_clk_100hz;
+
+	if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
+		pxl_clk /= 2;
+	else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422)
+		pxl_clk = pxl_clk * 2 / 3;
+
+	if (timing->display_color_depth == COLOR_DEPTH_101010)
+		pxl_clk = pxl_clk * 10 / 8;
+	else if (timing->display_color_depth == COLOR_DEPTH_121212)
+		pxl_clk = pxl_clk * 12 / 8;
+
+	return pxl_clk;
+}
+
 static bool dp_active_dongle_validate_timing(
 		const struct dc_crtc_timing *timing,
 		const struct dpcd_caps *dpcd_caps)
 {
-	unsigned int required_pix_clk_100hz = timing->pix_clk_100hz;
 	const struct dc_dongle_caps *dongle_caps = &dpcd_caps->dongle_caps;
 
 	switch (dpcd_caps->dongle_type) {
@@ -2115,13 +2141,6 @@ static bool dp_active_dongle_validate_ti
 		return false;
 	}
 
-
-	/* Check Color Depth and Pixel Clock */
-	if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
-		required_pix_clk_100hz /= 2;
-	else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422)
-		required_pix_clk_100hz = required_pix_clk_100hz * 2 / 3;
-
 	switch (timing->display_color_depth) {
 	case COLOR_DEPTH_666:
 	case COLOR_DEPTH_888:
@@ -2130,14 +2149,11 @@ static bool dp_active_dongle_validate_ti
 	case COLOR_DEPTH_101010:
 		if (dongle_caps->dp_hdmi_max_bpc < 10)
 			return false;
-		required_pix_clk_100hz = required_pix_clk_100hz * 10 / 8;
 		break;
 	case COLOR_DEPTH_121212:
 		if (dongle_caps->dp_hdmi_max_bpc < 12)
 			return false;
-		required_pix_clk_100hz = required_pix_clk_100hz * 12 / 8;
 		break;
-
 	case COLOR_DEPTH_141414:
 	case COLOR_DEPTH_161616:
 	default:
@@ -2145,7 +2161,7 @@ static bool dp_active_dongle_validate_ti
 		return false;
 	}
 
-	if (required_pix_clk_100hz > (dongle_caps->dp_hdmi_max_pixel_clk * 10))
+	if (get_timing_pixel_clock_100hz(timing) > (dongle_caps->dp_hdmi_max_pixel_clk * 10))
 		return false;
 
 	return true;
@@ -2166,7 +2182,7 @@ enum dc_status dc_link_validate_mode_tim
 		return DC_OK;
 
 	/* Passive Dongle */
-	if (0 != max_pix_clk && timing->pix_clk_100hz > max_pix_clk)
+	if (max_pix_clk != 0 && get_timing_pixel_clock_100hz(timing) > max_pix_clk)
 		return DC_EXCEED_DONGLE_CAP;
 
 	/* Active Dongle*/
@@ -2316,7 +2332,7 @@ static struct fixed31_32 get_pbn_from_ti
 	uint32_t denominator;
 
 	bpc = get_color_depth(pipe_ctx->stream_res.pix_clk_params.color_depth);
-	kbps = pipe_ctx->stream_res.pix_clk_params.requested_pix_clk_100hz / 10 * bpc * 3;
+	kbps = dc_bandwidth_in_kbps_from_timing(&pipe_ctx->stream->timing);
 
 	/*
 	 * margin 5300ppm + 300ppm ~ 0.6% as per spec, factor is 1.006
@@ -2736,3 +2752,49 @@ void dc_link_enable_hpd_filter(struct dc
 	}
 }
 
+uint32_t dc_bandwidth_in_kbps_from_timing(
+	const struct dc_crtc_timing *timing)
+{
+	uint32_t bits_per_channel = 0;
+	uint32_t kbps;
+
+	switch (timing->display_color_depth) {
+	case COLOR_DEPTH_666:
+		bits_per_channel = 6;
+		break;
+	case COLOR_DEPTH_888:
+		bits_per_channel = 8;
+		break;
+	case COLOR_DEPTH_101010:
+		bits_per_channel = 10;
+		break;
+	case COLOR_DEPTH_121212:
+		bits_per_channel = 12;
+		break;
+	case COLOR_DEPTH_141414:
+		bits_per_channel = 14;
+		break;
+	case COLOR_DEPTH_161616:
+		bits_per_channel = 16;
+		break;
+	default:
+		break;
+	}
+
+	ASSERT(bits_per_channel != 0);
+
+	kbps = timing->pix_clk_100hz / 10;
+	kbps *= bits_per_channel;
+
+	if (timing->flags.Y_ONLY != 1) {
+		/*Only YOnly make reduce bandwidth by 1/3 compares to RGB*/
+		kbps *= 3;
+		if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
+			kbps /= 2;
+		else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422)
+			kbps = kbps * 2 / 3;
+	}
+
+	return kbps;
+
+}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c	2019-07-28 02:28:39.000000000 -0400
@@ -1520,53 +1520,6 @@ static bool decide_fallback_link_setting
 	return true;
 }
 
-static uint32_t bandwidth_in_kbps_from_timing(
-	const struct dc_crtc_timing *timing)
-{
-	uint32_t bits_per_channel = 0;
-	uint32_t kbps;
-
-	switch (timing->display_color_depth) {
-	case COLOR_DEPTH_666:
-		bits_per_channel = 6;
-		break;
-	case COLOR_DEPTH_888:
-		bits_per_channel = 8;
-		break;
-	case COLOR_DEPTH_101010:
-		bits_per_channel = 10;
-		break;
-	case COLOR_DEPTH_121212:
-		bits_per_channel = 12;
-		break;
-	case COLOR_DEPTH_141414:
-		bits_per_channel = 14;
-		break;
-	case COLOR_DEPTH_161616:
-		bits_per_channel = 16;
-		break;
-	default:
-		break;
-	}
-
-	ASSERT(bits_per_channel != 0);
-
-	kbps = timing->pix_clk_100hz / 10;
-	kbps *= bits_per_channel;
-
-	if (timing->flags.Y_ONLY != 1) {
-		/*Only YOnly make reduce bandwidth by 1/3 compares to RGB*/
-		kbps *= 3;
-		if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
-			kbps /= 2;
-		else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422)
-			kbps = kbps * 2 / 3;
-	}
-
-	return kbps;
-
-}
-
 static uint32_t bandwidth_in_kbps_from_link_settings(
 	const struct dc_link_settings *link_setting)
 {
@@ -1607,7 +1560,7 @@ bool dp_validate_mode_timing(
 		link_setting = &link->verified_link_cap;
 	*/
 
-	req_bw = bandwidth_in_kbps_from_timing(timing);
+	req_bw = dc_bandwidth_in_kbps_from_timing(timing);
 	max_bw = bandwidth_in_kbps_from_link_settings(link_setting);
 
 	if (req_bw <= max_bw) {
@@ -1641,7 +1594,7 @@ void decide_link_settings(struct dc_stre
 	uint32_t req_bw;
 	uint32_t link_bw;
 
-	req_bw = bandwidth_in_kbps_from_timing(&stream->timing);
+	req_bw = dc_bandwidth_in_kbps_from_timing(&stream->timing);
 
 	link = stream->link;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/core/dc_resource.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/core/dc_resource.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/core/dc_resource.c	2019-07-28 02:28:39.000000000 -0400
@@ -1266,10 +1266,12 @@ bool dc_remove_plane_from_context(
 			 * For head pipe detach surfaces from pipe for tail
 			 * pipe just zero it out
 			 */
-			if (!pipe_ctx->top_pipe) {
+			if (!pipe_ctx->top_pipe ||
+				(!pipe_ctx->top_pipe->top_pipe &&
+					pipe_ctx->top_pipe->stream_res.opp != pipe_ctx->stream_res.opp)) {
 				pipe_ctx->plane_state = NULL;
 				pipe_ctx->bottom_pipe = NULL;
-			} else  {
+			} else {
 				memset(pipe_ctx, 0, sizeof(*pipe_ctx));
 			}
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c	2019-07-28 02:28:39.000000000 -0400
@@ -377,7 +377,6 @@ static bool acquire(
 	struct dce_aux *engine,
 	struct ddc *ddc)
 {
-
 	enum gpio_result result;
 
 	if (!is_engine_available(engine))
@@ -458,7 +457,8 @@ int dce_aux_transfer(struct ddc_service
 	memset(&aux_rep, 0, sizeof(aux_rep));
 
 	aux_engine = ddc->ctx->dc->res_pool->engines[ddc_pin->pin_data->en];
-	acquire(aux_engine, ddc_pin);
+	if (!acquire(aux_engine, ddc_pin))
+		return -1;
 
 	if (payload->i2c_over_aux)
 		aux_req.type = AUX_TRANSACTION_TYPE_I2C;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dc_link.h linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dc_link.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dc_link.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dc_link.h	2019-07-28 02:28:39.000000000 -0400
@@ -252,4 +252,6 @@ bool dc_submit_i2c(
 		uint32_t link_index,
 		struct i2c_command *cmd);
 
+uint32_t dc_bandwidth_in_kbps_from_timing(
+	const struct dc_crtc_timing *timing);
 #endif /* DC_LINK_H_ */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c	2019-07-28 02:28:39.000000000 -0400
@@ -392,6 +392,10 @@ void dpp1_cnv_setup (
 	default:
 		break;
 	}
+
+	/* Set default color space based on format if none is given. */
+	color_space = input_color_space ? input_color_space : color_space;
+
 	REG_SET(CNVC_SURFACE_PIXEL_FORMAT, 0,
 			CNVC_SURFACE_PIXEL_FORMAT, pixel_format);
 	REG_UPDATE(FORMAT_CONTROL, FORMAT_CONTROL__ALPHA_EN, alpha_en);
@@ -403,7 +407,7 @@ void dpp1_cnv_setup (
 		for (i = 0; i < 12; i++)
 			tbl_entry.regval[i] = input_csc_color_matrix.matrix[i];
 
-		tbl_entry.color_space = input_color_space;
+		tbl_entry.color_space = color_space;
 
 		if (color_space >= COLOR_SPACE_YCBCR601)
 			select = INPUT_CSC_SELECT_ICSC;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c	2019-07-28 02:28:39.000000000 -0400
@@ -406,15 +406,25 @@ void dpp1_dscl_calc_lb_num_partitions(
 		int *num_part_y,
 		int *num_part_c)
 {
+	int lb_memory_size, lb_memory_size_c, lb_memory_size_a, num_partitions_a,
+	lb_bpc, memory_line_size_y, memory_line_size_c, memory_line_size_a;
+
 	int line_size = scl_data->viewport.width < scl_data->recout.width ?
 			scl_data->viewport.width : scl_data->recout.width;
 	int line_size_c = scl_data->viewport_c.width < scl_data->recout.width ?
 			scl_data->viewport_c.width : scl_data->recout.width;
-	int lb_bpc = dpp1_dscl_get_lb_depth_bpc(scl_data->lb_params.depth);
-	int memory_line_size_y = (line_size * lb_bpc + 71) / 72; /* +71 to ceil */
-	int memory_line_size_c = (line_size_c * lb_bpc + 71) / 72; /* +71 to ceil */
-	int memory_line_size_a = (line_size + 5) / 6; /* +5 to ceil */
-	int lb_memory_size, lb_memory_size_c, lb_memory_size_a, num_partitions_a;
+
+	if (line_size == 0)
+		line_size = 1;
+
+	if (line_size_c == 0)
+		line_size_c = 1;
+
+
+	lb_bpc = dpp1_dscl_get_lb_depth_bpc(scl_data->lb_params.depth);
+	memory_line_size_y = (line_size * lb_bpc + 71) / 72; /* +71 to ceil */
+	memory_line_size_c = (line_size_c * lb_bpc + 71) / 72; /* +71 to ceil */
+	memory_line_size_a = (line_size + 5) / 6; /* +5 to ceil */
 
 	if (lb_config == LB_MEMORY_CONFIG_1) {
 		lb_memory_size = 816;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c	2019-07-28 02:28:39.000000000 -0400
@@ -1008,9 +1008,14 @@ static void dcn10_init_pipes(struct dc *
 		 * to non-preferred front end. If pipe_ctx->stream is not NULL,
 		 * we will use the pipe, so don't disable
 		 */
-		if (pipe_ctx->stream != NULL)
+		if (pipe_ctx->stream != NULL &&
+		    pipe_ctx->stream_res.tg->funcs->is_tg_enabled(
+			    pipe_ctx->stream_res.tg))
 			continue;
 
+		/* Disable on the current state so the new one isn't cleared. */
+		pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i];
+
 		dpp->funcs->dpp_reset(dpp);
 
 		pipe_ctx->stream_res.tg = tg;
@@ -1931,7 +1936,7 @@ static void update_dpp(struct dpp *dpp,
 			plane_state->format,
 			EXPANSION_MODE_ZERO,
 			plane_state->input_csc_color_matrix,
-			COLOR_SPACE_YCBCR601_LIMITED);
+			plane_state->color_space);
 
 	//set scale and bias registers
 	build_prescale_params(&bns_params, plane_state);
@@ -2692,9 +2697,15 @@ static void dcn10_set_cursor_position(st
 		.rotation = pipe_ctx->plane_state->rotation,
 		.mirror = pipe_ctx->plane_state->horizontal_mirror
 	};
+	uint32_t x_plane = pipe_ctx->plane_state->dst_rect.x;
+	uint32_t y_plane = pipe_ctx->plane_state->dst_rect.y;
+	uint32_t x_offset = min(x_plane, pos_cpy.x);
+	uint32_t y_offset = min(y_plane, pos_cpy.y);
 
-	pos_cpy.x_hotspot += pipe_ctx->plane_state->dst_rect.x;
-	pos_cpy.y_hotspot += pipe_ctx->plane_state->dst_rect.y;
+	pos_cpy.x -= x_offset;
+	pos_cpy.y -= y_offset;
+	pos_cpy.x_hotspot += (x_plane - x_offset);
+	pos_cpy.y_hotspot += (y_plane - y_offset);
 
 	if (pipe_ctx->plane_state->address.type
 			== PLN_ADDR_TYPE_VIDEO_PROGRESSIVE)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/include/dal_asic_id.h linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/include/dal_asic_id.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/include/dal_asic_id.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/include/dal_asic_id.h	2019-07-28 02:28:39.000000000 -0400
@@ -138,13 +138,14 @@
 #endif
 #define RAVEN_UNKNOWN 0xFF
 
-#if defined(CONFIG_DRM_AMD_DC_DCN1_01)
-#define ASICREV_IS_RAVEN2(eChipRev) ((eChipRev >= RAVEN2_A0) && (eChipRev < 0xF0))
-#endif /* DCN1_01 */
 #define ASIC_REV_IS_RAVEN(eChipRev) ((eChipRev >= RAVEN_A0) && eChipRev < RAVEN_UNKNOWN)
 #define RAVEN1_F0 0xF0
 #define ASICREV_IS_RV1_F0(eChipRev) ((eChipRev >= RAVEN1_F0) && (eChipRev < RAVEN_UNKNOWN))
 
+#if defined(CONFIG_DRM_AMD_DC_DCN1_01)
+#define ASICREV_IS_PICASSO(eChipRev) ((eChipRev >= PICASSO_A0) && (eChipRev < RAVEN2_A0))
+#define ASICREV_IS_RAVEN2(eChipRev) ((eChipRev >= RAVEN2_A0) && (eChipRev < 0xF0))
+#endif /* DCN1_01 */
 
 #define FAMILY_RV 142 /* DCN 1*/
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/modules/color/color_gamma.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/modules/color/color_gamma.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/display/modules/color/color_gamma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/display/modules/color/color_gamma.c	2019-07-28 02:28:39.000000000 -0400
@@ -1854,6 +1854,8 @@ bool mod_color_calculate_degamma_params(
 			coordinates_x, axis_x, curve,
 			MAX_HW_POINTS, tf_pts,
 			mapUserRamp && ramp && ramp->type == GAMMA_RGB_256);
+	if (ramp->type == GAMMA_CUSTOM)
+		apply_lut_1d(ramp, MAX_HW_POINTS, tf_pts);
 
 	ret = true;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c	2019-07-28 02:28:39.000000000 -0400
@@ -325,7 +325,7 @@ int hwmgr_resume(struct pp_hwmgr *hwmgr)
 	if (ret)
 		return ret;
 
-	ret = psm_adjust_power_state_dynamic(hwmgr, true, NULL);
+	ret = psm_adjust_power_state_dynamic(hwmgr, false, NULL);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c	2019-07-28 02:28:39.000000000 -0400
@@ -916,8 +916,10 @@ static int init_thermal_controller(
 			PHM_PlatformCaps_ThermalController
 		  );
 
-	if (0 == powerplay_table->usFanTableOffset)
+	if (0 == powerplay_table->usFanTableOffset) {
+		hwmgr->thermal_controller.use_hw_fan_control = 1;
 		return 0;
+	}
 
 	fan_table = (const PPTable_Generic_SubTable_Header *)
 		(((unsigned long)powerplay_table) +
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h	2019-07-28 02:28:39.000000000 -0400
@@ -694,6 +694,7 @@ struct pp_thermal_controller_info {
 	uint8_t ucType;
 	uint8_t ucI2cLine;
 	uint8_t ucI2cAddress;
+	uint8_t use_hw_fan_control;
 	struct pp_fan_info fanInfo;
 	struct pp_advance_fan_control_parameters advanceFanControlParameters;
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c	2019-07-28 02:28:39.000000000 -0400
@@ -2092,6 +2092,10 @@ static int polaris10_thermal_setup_fan_t
 		return 0;
 	}
 
+	/* use hardware fan control */
+	if (hwmgr->thermal_controller.use_hw_fan_control)
+		return 0;
+
 	tmp64 = hwmgr->thermal_controller.advanceFanControlParameters.
 			usPWMMin * duty100;
 	do_div(tmp64, 10000);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/arm/display/komeda/Makefile linux-libre-5.1.21-gnu/drivers/gpu/drm/arm/display/komeda/Makefile
--- linux-libre-5.1-gnu/drivers/gpu/drm/arm/display/komeda/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/arm/display/komeda/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0
 
 ccflags-y := \
-	-I$(src)/../include \
-	-I$(src)
+	-I $(srctree)/$(src)/../include \
+	-I $(srctree)/$(src)
 
 komeda-y := \
 	komeda_drv.o \
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/arm/hdlcd_crtc.c linux-libre-5.1.21-gnu/drivers/gpu/drm/arm/hdlcd_crtc.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/arm/hdlcd_crtc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/arm/hdlcd_crtc.c	2019-07-28 02:28:39.000000000 -0400
@@ -186,20 +186,20 @@ static void hdlcd_crtc_atomic_disable(st
 	clk_disable_unprepare(hdlcd->clk);
 }
 
-static int hdlcd_crtc_atomic_check(struct drm_crtc *crtc,
-				   struct drm_crtc_state *state)
+static enum drm_mode_status hdlcd_crtc_mode_valid(struct drm_crtc *crtc,
+		const struct drm_display_mode *mode)
 {
 	struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
-	struct drm_display_mode *mode = &state->adjusted_mode;
 	long rate, clk_rate = mode->clock * 1000;
 
 	rate = clk_round_rate(hdlcd->clk, clk_rate);
-	if (rate != clk_rate) {
+	/* 0.1% seems a close enough tolerance for the TDA19988 on Juno */
+	if (abs(rate - clk_rate) * 1000 > clk_rate) {
 		/* clock required by mode not supported by hardware */
-		return -EINVAL;
+		return MODE_NOCLOCK;
 	}
 
-	return 0;
+	return MODE_OK;
 }
 
 static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc,
@@ -220,7 +220,7 @@ static void hdlcd_crtc_atomic_begin(stru
 }
 
 static const struct drm_crtc_helper_funcs hdlcd_crtc_helper_funcs = {
-	.atomic_check	= hdlcd_crtc_atomic_check,
+	.mode_valid	= hdlcd_crtc_mode_valid,
 	.atomic_begin	= hdlcd_crtc_atomic_begin,
 	.atomic_enable	= hdlcd_crtc_atomic_enable,
 	.atomic_disable	= hdlcd_crtc_atomic_disable,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/arm/malidp_drv.c linux-libre-5.1.21-gnu/drivers/gpu/drm/arm/malidp_drv.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/arm/malidp_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/arm/malidp_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -192,6 +192,7 @@ static void malidp_atomic_commit_hw_done
 {
 	struct drm_device *drm = state->dev;
 	struct malidp_drm *malidp = drm->dev_private;
+	int loop = 5;
 
 	malidp->event = malidp->crtc.state->event;
 	malidp->crtc.state->event = NULL;
@@ -206,8 +207,18 @@ static void malidp_atomic_commit_hw_done
 			drm_crtc_vblank_get(&malidp->crtc);
 
 		/* only set config_valid if the CRTC is enabled */
-		if (malidp_set_and_wait_config_valid(drm) < 0)
+		if (malidp_set_and_wait_config_valid(drm) < 0) {
+			/*
+			 * make a loop around the second CVAL setting and
+			 * try 5 times before giving up.
+			 */
+			while (loop--) {
+				if (!malidp_set_and_wait_config_valid(drm))
+					break;
+			}
 			DRM_DEBUG_DRIVER("timed out waiting for updated configuration\n");
+		}
+
 	} else if (malidp->event) {
 		/* CRTC inactive means vblank IRQ is disabled, send event directly */
 		spin_lock_irq(&drm->event_lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c linux-libre-5.1.21-gnu/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -748,11 +748,11 @@ static void adv7511_mode_set(struct adv7
 			vsync_polarity = 1;
 	}
 
-	if (mode->vrefresh <= 24000)
+	if (drm_mode_vrefresh(mode) <= 24)
 		low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ;
-	else if (mode->vrefresh <= 25000)
+	else if (drm_mode_vrefresh(mode) <= 25)
 		low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ;
-	else if (mode->vrefresh <= 30000)
+	else if (drm_mode_vrefresh(mode) <= 30)
 		low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ;
 	else
 		low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_atomic_helper.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_atomic_helper.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_atomic_helper.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_atomic_helper.c	2019-07-28 02:28:39.000000000 -0400
@@ -1607,15 +1607,6 @@ int drm_atomic_helper_async_check(struct
 	    old_plane_state->crtc != new_plane_state->crtc)
 		return -EINVAL;
 
-	/*
-	 * FIXME: Since prepare_fb and cleanup_fb are always called on
-	 * the new_plane_state for async updates we need to block framebuffer
-	 * changes. This prevents use of a fb that's been cleaned up and
-	 * double cleanups from occuring.
-	 */
-	if (old_plane_state->fb != new_plane_state->fb)
-		return -EINVAL;
-
 	funcs = plane->helper_private;
 	if (!funcs->atomic_async_update)
 		return -EINVAL;
@@ -1646,6 +1637,8 @@ EXPORT_SYMBOL(drm_atomic_helper_async_ch
  * drm_atomic_async_check() succeeds. Async commits are not supposed to swap
  * the states like normal sync commits, but just do in-place changes on the
  * current state.
+ *
+ * TODO: Implement full swap instead of doing in-place changes.
  */
 void drm_atomic_helper_async_commit(struct drm_device *dev,
 				    struct drm_atomic_state *state)
@@ -1656,6 +1649,9 @@ void drm_atomic_helper_async_commit(stru
 	int i;
 
 	for_each_new_plane_in_state(state, plane, plane_state, i) {
+		struct drm_framebuffer *new_fb = plane_state->fb;
+		struct drm_framebuffer *old_fb = plane->state->fb;
+
 		funcs = plane->helper_private;
 		funcs->atomic_async_update(plane, plane_state);
 
@@ -1664,11 +1660,17 @@ void drm_atomic_helper_async_commit(stru
 		 * plane->state in-place, make sure at least common
 		 * properties have been properly updated.
 		 */
-		WARN_ON_ONCE(plane->state->fb != plane_state->fb);
+		WARN_ON_ONCE(plane->state->fb != new_fb);
 		WARN_ON_ONCE(plane->state->crtc_x != plane_state->crtc_x);
 		WARN_ON_ONCE(plane->state->crtc_y != plane_state->crtc_y);
 		WARN_ON_ONCE(plane->state->src_x != plane_state->src_x);
 		WARN_ON_ONCE(plane->state->src_y != plane_state->src_y);
+
+		/*
+		 * Make sure the FBs have been swapped so that cleanups in the
+		 * new_state performs a cleanup in the old FB.
+		 */
+		WARN_ON_ONCE(plane_state->fb != old_fb);
 	}
 }
 EXPORT_SYMBOL(drm_atomic_helper_async_commit);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_atomic_state_helper.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_atomic_state_helper.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_atomic_state_helper.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_atomic_state_helper.c	2019-07-28 02:28:39.000000000 -0400
@@ -30,6 +30,7 @@
 #include <drm/drm_connector.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_device.h>
+#include <drm/drm_writeback.h>
 
 #include <linux/slab.h>
 #include <linux/dma-fence.h>
@@ -412,6 +413,9 @@ __drm_atomic_helper_connector_destroy_st
 
 	if (state->commit)
 		drm_crtc_commit_put(state->commit);
+
+	if (state->writeback_job)
+		drm_writeback_cleanup_job(state->writeback_job);
 }
 EXPORT_SYMBOL(__drm_atomic_helper_connector_destroy_state);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_atomic_uapi.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_atomic_uapi.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_atomic_uapi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_atomic_uapi.c	2019-07-28 02:28:39.000000000 -0400
@@ -512,8 +512,8 @@ drm_atomic_crtc_get_property(struct drm_
 }
 
 static int drm_atomic_plane_set_property(struct drm_plane *plane,
-		struct drm_plane_state *state, struct drm_property *property,
-		uint64_t val)
+		struct drm_plane_state *state, struct drm_file *file_priv,
+		struct drm_property *property, uint64_t val)
 {
 	struct drm_device *dev = plane->dev;
 	struct drm_mode_config *config = &dev->mode_config;
@@ -521,7 +521,8 @@ static int drm_atomic_plane_set_property
 	int ret;
 
 	if (property == config->prop_fb_id) {
-		struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val);
+		struct drm_framebuffer *fb;
+		fb = drm_framebuffer_lookup(dev, file_priv, val);
 		drm_atomic_set_fb_for_plane(state, fb);
 		if (fb)
 			drm_framebuffer_put(fb);
@@ -537,7 +538,7 @@ static int drm_atomic_plane_set_property
 			return -EINVAL;
 
 	} else if (property == config->prop_crtc_id) {
-		struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val);
+		struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val);
 		return drm_atomic_set_crtc_for_plane(state, crtc);
 	} else if (property == config->prop_crtc_x) {
 		state->crtc_x = U642I64(val);
@@ -681,14 +682,14 @@ static int drm_atomic_set_writeback_fb_f
 }
 
 static int drm_atomic_connector_set_property(struct drm_connector *connector,
-		struct drm_connector_state *state, struct drm_property *property,
-		uint64_t val)
+		struct drm_connector_state *state, struct drm_file *file_priv,
+		struct drm_property *property, uint64_t val)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_mode_config *config = &dev->mode_config;
 
 	if (property == config->prop_crtc_id) {
-		struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val);
+		struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val);
 		return drm_atomic_set_crtc_for_connector(state, crtc);
 	} else if (property == config->dpms_property) {
 		/* setting DPMS property requires special handling, which
@@ -747,8 +748,10 @@ static int drm_atomic_connector_set_prop
 		}
 		state->content_protection = val;
 	} else if (property == config->writeback_fb_id_property) {
-		struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val);
-		int ret = drm_atomic_set_writeback_fb_for_connector(state, fb);
+		struct drm_framebuffer *fb;
+		int ret;
+		fb = drm_framebuffer_lookup(dev, file_priv, val);
+		ret = drm_atomic_set_writeback_fb_for_connector(state, fb);
 		if (fb)
 			drm_framebuffer_put(fb);
 		return ret;
@@ -943,6 +946,7 @@ out:
 }
 
 int drm_atomic_set_property(struct drm_atomic_state *state,
+			    struct drm_file *file_priv,
 			    struct drm_mode_object *obj,
 			    struct drm_property *prop,
 			    uint64_t prop_value)
@@ -965,7 +969,8 @@ int drm_atomic_set_property(struct drm_a
 		}
 
 		ret = drm_atomic_connector_set_property(connector,
-				connector_state, prop, prop_value);
+				connector_state, file_priv,
+				prop, prop_value);
 		break;
 	}
 	case DRM_MODE_OBJECT_CRTC: {
@@ -993,7 +998,8 @@ int drm_atomic_set_property(struct drm_a
 		}
 
 		ret = drm_atomic_plane_set_property(plane,
-				plane_state, prop, prop_value);
+				plane_state, file_priv,
+				prop, prop_value);
 		break;
 	}
 	default:
@@ -1365,8 +1371,8 @@ retry:
 				goto out;
 			}
 
-			ret = drm_atomic_set_property(state, obj, prop,
-						      prop_value);
+			ret = drm_atomic_set_property(state, file_priv,
+						      obj, prop, prop_value);
 			if (ret) {
 				drm_mode_object_put(obj);
 				goto out;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_bufs.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_bufs.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_bufs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_bufs.c	2019-07-28 02:28:39.000000000 -0400
@@ -1332,7 +1332,10 @@ static int copy_one_buf(void *data, int
 				 .size = from->buf_size,
 				 .low_mark = from->low_mark,
 				 .high_mark = from->high_mark};
-	return copy_to_user(to, &v, offsetof(struct drm_buf_desc, flags));
+
+	if (copy_to_user(to, &v, offsetof(struct drm_buf_desc, flags)))
+		return -EFAULT;
+	return 0;
 }
 
 int drm_legacy_infobufs(struct drm_device *dev, void *data,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_connector.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_connector.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_connector.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_connector.c	2019-07-28 02:28:39.000000000 -0400
@@ -1385,12 +1385,6 @@ EXPORT_SYMBOL(drm_mode_create_scaling_mo
  *
  *	The driver may place further restrictions within these minimum
  *	and maximum bounds.
- *
- *	The semantics for the vertical blank timestamp differ when
- *	variable refresh rate is active. The vertical blank timestamp
- *	is defined to be an estimate using the current mode's fixed
- *	refresh rate timings. The semantics for the page-flip event
- *	timestamp remain the same.
  */
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_crtc.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_crtc.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_crtc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_crtc.c	2019-07-28 02:28:39.000000000 -0400
@@ -559,6 +559,10 @@ int drm_mode_setcrtc(struct drm_device *
 
 	plane = crtc->primary;
 
+	/* allow disabling with the primary plane leased */
+	if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id))
+		return -EACCES;
+
 	mutex_lock(&crtc->dev->mode_config.mutex);
 	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx,
 				   DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_crtc_internal.h linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_crtc_internal.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_crtc_internal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_crtc_internal.h	2019-07-28 02:28:39.000000000 -0400
@@ -214,6 +214,7 @@ int drm_atomic_connector_commit_dpms(str
 				     struct drm_connector *connector,
 				     int mode);
 int drm_atomic_set_property(struct drm_atomic_state *state,
+			    struct drm_file *file_priv,
 			    struct drm_mode_object *obj,
 			    struct drm_property *prop,
 			    uint64_t prop_value);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_drv.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_drv.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -497,7 +497,7 @@ int drm_dev_init(struct drm_device *dev,
 	BUG_ON(!parent);
 
 	kref_init(&dev->ref);
-	dev->dev = parent;
+	dev->dev = get_device(parent);
 	dev->driver = driver;
 
 	/* no per-device feature limits by default */
@@ -567,6 +567,7 @@ err_minors:
 	drm_minor_free(dev, DRM_MINOR_RENDER);
 	drm_fs_inode_free(dev->anon_inode);
 err_free:
+	put_device(dev->dev);
 	mutex_destroy(&dev->master_mutex);
 	mutex_destroy(&dev->ctxlist_mutex);
 	mutex_destroy(&dev->clientlist_mutex);
@@ -602,6 +603,8 @@ void drm_dev_fini(struct drm_device *dev
 	drm_minor_free(dev, DRM_MINOR_PRIMARY);
 	drm_minor_free(dev, DRM_MINOR_RENDER);
 
+	put_device(dev->dev);
+
 	mutex_destroy(&dev->master_mutex);
 	mutex_destroy(&dev->ctxlist_mutex);
 	mutex_destroy(&dev->clientlist_mutex);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_edid.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_edid.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_edid.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_edid.c	2019-07-28 02:28:39.000000000 -0400
@@ -172,6 +172,25 @@ static const struct edid_quirk {
 	/* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
 	{ "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
 
+	/* Valve Index Headset */
+	{ "VLV", 0x91a8, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b0, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b1, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b2, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b3, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b4, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b5, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b6, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b7, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b8, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91b9, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91ba, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91bb, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91bc, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91bd, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91be, EDID_QUIRK_NON_DESKTOP },
+	{ "VLV", 0x91bf, EDID_QUIRK_NON_DESKTOP },
+
 	/* HTC Vive and Vive Pro VR Headsets */
 	{ "HVR", 0xaa01, EDID_QUIRK_NON_DESKTOP },
 	{ "HVR", 0xaa02, EDID_QUIRK_NON_DESKTOP },
@@ -193,6 +212,12 @@ static const struct edid_quirk {
 
 	/* Sony PlayStation VR Headset */
 	{ "SNY", 0x0704, EDID_QUIRK_NON_DESKTOP },
+
+	/* Sensics VR Headsets */
+	{ "SEN", 0x1019, EDID_QUIRK_NON_DESKTOP },
+
+	/* OSVR HDK and HDK2 VR Headsets */
+	{ "SVR", 0x1019, EDID_QUIRK_NON_DESKTOP },
 };
 
 /*
@@ -1324,6 +1349,7 @@ MODULE_PARM_DESC(edid_fixup,
 
 static void drm_get_displayid(struct drm_connector *connector,
 			      struct edid *edid);
+static int validate_displayid(u8 *displayid, int length, int idx);
 
 static int drm_edid_block_checksum(const u8 *raw_edid)
 {
@@ -1555,6 +1581,50 @@ static void connector_bad_edid(struct dr
 	}
 }
 
+/* Get override or firmware EDID */
+static struct edid *drm_get_override_edid(struct drm_connector *connector)
+{
+	struct edid *override = NULL;
+
+	if (connector->override_edid)
+		override = drm_edid_duplicate(connector->edid_blob_ptr->data);
+
+	if (!override)
+		override = drm_load_edid_firmware(connector);
+
+	return IS_ERR(override) ? NULL : override;
+}
+
+/**
+ * drm_add_override_edid_modes - add modes from override/firmware EDID
+ * @connector: connector we're probing
+ *
+ * Add modes from the override/firmware EDID, if available. Only to be used from
+ * drm_helper_probe_single_connector_modes() as a fallback for when DDC probe
+ * failed during drm_get_edid() and caused the override/firmware EDID to be
+ * skipped.
+ *
+ * Return: The number of modes added or 0 if we couldn't find any.
+ */
+int drm_add_override_edid_modes(struct drm_connector *connector)
+{
+	struct edid *override;
+	int num_modes = 0;
+
+	override = drm_get_override_edid(connector);
+	if (override) {
+		drm_connector_update_edid_property(connector, override);
+		num_modes = drm_add_edid_modes(connector, override);
+		kfree(override);
+
+		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] adding %d modes via fallback override/firmware EDID\n",
+			      connector->base.id, connector->name, num_modes);
+	}
+
+	return num_modes;
+}
+EXPORT_SYMBOL(drm_add_override_edid_modes);
+
 /**
  * drm_do_get_edid - get EDID data using a custom EDID block read function
  * @connector: connector we're probing
@@ -1582,15 +1652,10 @@ struct edid *drm_do_get_edid(struct drm_
 {
 	int i, j = 0, valid_extensions = 0;
 	u8 *edid, *new;
-	struct edid *override = NULL;
-
-	if (connector->override_edid)
-		override = drm_edid_duplicate(connector->edid_blob_ptr->data);
-
-	if (!override)
-		override = drm_load_edid_firmware(connector);
+	struct edid *override;
 
-	if (!IS_ERR_OR_NULL(override))
+	override = drm_get_override_edid(connector);
+	if (override)
 		return override;
 
 	if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
@@ -2868,16 +2933,46 @@ static u8 *drm_find_edid_extension(const
 	return edid_ext;
 }
 
-static u8 *drm_find_cea_extension(const struct edid *edid)
-{
-	return drm_find_edid_extension(edid, CEA_EXT);
-}
 
 static u8 *drm_find_displayid_extension(const struct edid *edid)
 {
 	return drm_find_edid_extension(edid, DISPLAYID_EXT);
 }
 
+static u8 *drm_find_cea_extension(const struct edid *edid)
+{
+	int ret;
+	int idx = 1;
+	int length = EDID_LENGTH;
+	struct displayid_block *block;
+	u8 *cea;
+	u8 *displayid;
+
+	/* Look for a top level CEA extension block */
+	cea = drm_find_edid_extension(edid, CEA_EXT);
+	if (cea)
+		return cea;
+
+	/* CEA blocks can also be found embedded in a DisplayID block */
+	displayid = drm_find_displayid_extension(edid);
+	if (!displayid)
+		return NULL;
+
+	ret = validate_displayid(displayid, length, idx);
+	if (ret)
+		return NULL;
+
+	idx += sizeof(struct displayid_hdr);
+	for_each_displayid_db(displayid, block, idx, length) {
+		if (block->tag == DATA_BLOCK_CTA) {
+			cea = (u8 *)block;
+			break;
+		}
+	}
+
+	return cea;
+}
+
 /*
  * Calculate the alternate clock for the CEA mode
  * (60Hz vs. 59.94Hz etc.)
@@ -3601,13 +3696,38 @@ cea_revision(const u8 *cea)
 static int
 cea_db_offsets(const u8 *cea, int *start, int *end)
 {
-	/* Data block offset in CEA extension block */
-	*start = 4;
-	*end = cea[2];
-	if (*end == 0)
-		*end = 127;
-	if (*end < 4 || *end > 127)
-		return -ERANGE;
+	/* DisplayID CTA extension blocks and top-level CEA EDID
+	 * block header definitions differ in the following bytes:
+	 *   1) Byte 2 of the header specifies length differently,
+	 *   2) Byte 3 is only present in the CEA top level block.
+	 *
+	 * The different definitions for byte 2 follow.
+	 *
+	 * DisplayID CTA extension block defines byte 2 as:
+	 *   Number of payload bytes
+	 *
+	 * CEA EDID block defines byte 2 as:
+	 *   Byte number (decimal) within this block where the 18-byte
+	 *   DTDs begin. If no non-DTD data is present in this extension
+	 *   block, the value should be set to 04h (the byte after next).
+	 *   If set to 00h, there are no DTDs present in this block and
+	 *   no non-DTD data.
+	 */
+	if (cea[0] == DATA_BLOCK_CTA) {
+		*start = 3;
+		*end = *start + cea[2];
+	} else if (cea[0] == CEA_EXT) {
+		/* Data block offset in CEA extension block */
+		*start = 4;
+		*end = cea[2];
+		if (*end == 0)
+			*end = 127;
+		if (*end < 4 || *end > 127)
+			return -ERANGE;
+	} else {
+		return -ENOTSUPP;
+	}
+
 	return 0;
 }
 
@@ -5155,6 +5275,9 @@ static int drm_parse_display_id(struct d
 		case DATA_BLOCK_TYPE_1_DETAILED_TIMING:
 			/* handled in mode gathering code. */
 			break;
+		case DATA_BLOCK_CTA:
+			/* handled in the cea parser code. */
+			break;
 		default:
 			DRM_DEBUG_KMS("found DisplayID tag 0x%x, unhandled\n", block->tag);
 			break;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_fb_helper.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_fb_helper.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_fb_helper.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_fb_helper.c	2019-07-28 02:28:39.000000000 -0400
@@ -3317,8 +3317,6 @@ int drm_fbdev_generic_setup(struct drm_d
 		return ret;
 	}
 
-	drm_client_add(&fb_helper->client);
-
 	if (!preferred_bpp)
 		preferred_bpp = dev->mode_config.preferred_depth;
 	if (!preferred_bpp)
@@ -3329,6 +3327,8 @@ int drm_fbdev_generic_setup(struct drm_d
 	if (ret)
 		DRM_DEV_DEBUG(dev->dev, "client hotplug ret=%d\n", ret);
 
+	drm_client_add(&fb_helper->client);
+
 	return 0;
 }
 EXPORT_SYMBOL(drm_fbdev_generic_setup);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_file.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_file.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_file.c	2019-07-28 02:28:39.000000000 -0400
@@ -577,6 +577,7 @@ put_back_event:
 				file_priv->event_space -= length;
 				list_add(&e->link, &file_priv->event_list);
 				spin_unlock_irq(&dev->event_lock);
+				wake_up_interruptible(&file_priv->event_wait);
 				break;
 			}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_gem_cma_helper.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_gem_cma_helper.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_gem_cma_helper.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_gem_cma_helper.c	2019-07-28 02:28:39.000000000 -0400
@@ -186,13 +186,13 @@ void drm_gem_cma_free_object(struct drm_
 
 	cma_obj = to_drm_gem_cma_obj(gem_obj);
 
-	if (cma_obj->vaddr) {
-		dma_free_wc(gem_obj->dev->dev, cma_obj->base.size,
-			    cma_obj->vaddr, cma_obj->paddr);
-	} else if (gem_obj->import_attach) {
+	if (gem_obj->import_attach) {
 		if (cma_obj->vaddr)
 			dma_buf_vunmap(gem_obj->import_attach->dmabuf, cma_obj->vaddr);
 		drm_prime_gem_destroy(gem_obj, cma_obj->sgt);
+	} else if (cma_obj->vaddr) {
+		dma_free_wc(gem_obj->dev->dev, cma_obj->base.size,
+			    cma_obj->vaddr, cma_obj->paddr);
 	}
 
 	drm_gem_object_release(gem_obj);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_ioc32.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_ioc32.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_ioc32.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_ioc32.c	2019-07-28 02:28:39.000000000 -0400
@@ -372,7 +372,10 @@ static int copy_one_buf32(void *data, in
 			      .size = from->buf_size,
 			      .low_mark = from->low_mark,
 			      .high_mark = from->high_mark};
-	return copy_to_user(to + count, &v, offsetof(drm_buf_desc32_t, flags));
+
+	if (copy_to_user(to + count, &v, offsetof(drm_buf_desc32_t, flags)))
+		return -EFAULT;
+	return 0;
 }
 
 static int drm_legacy_infobufs32(struct drm_device *dev, void *data,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_ioctl.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_ioctl.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_ioctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_ioctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -508,13 +508,6 @@ int drm_version(struct drm_device *dev,
 	return err;
 }
 
-static inline bool
-drm_render_driver_and_ioctl(const struct drm_device *dev, u32 flags)
-{
-	return drm_core_check_feature(dev, DRIVER_RENDER) &&
-		(flags & DRM_RENDER_ALLOW);
-}
-
 /**
  * drm_ioctl_permit - Check ioctl permissions against caller
  *
@@ -529,19 +522,14 @@ drm_render_driver_and_ioctl(const struct
  */
 int drm_ioctl_permit(u32 flags, struct drm_file *file_priv)
 {
-	const struct drm_device *dev = file_priv->minor->dev;
-
 	/* ROOT_ONLY is only for CAP_SYS_ADMIN */
 	if (unlikely((flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)))
 		return -EACCES;
 
-	/* AUTH is only for master ... */
-	if (unlikely((flags & DRM_AUTH) && drm_is_primary_client(file_priv))) {
-		/* authenticated ones, or render capable on DRM_RENDER_ALLOW. */
-		if (!file_priv->authenticated &&
-		    !drm_render_driver_and_ioctl(dev, flags))
-			return -EACCES;
-	}
+	/* AUTH is only for authenticated or render client */
+	if (unlikely((flags & DRM_AUTH) && !drm_is_render_client(file_priv) &&
+		     !file_priv->authenticated))
+		return -EACCES;
 
 	/* MASTER is only for master or control clients */
 	if (unlikely((flags & DRM_MASTER) &&
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_mode_config.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_mode_config.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_mode_config.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_mode_config.c	2019-07-28 02:28:39.000000000 -0400
@@ -297,8 +297,9 @@ static int drm_mode_create_standard_prop
 		return -ENOMEM;
 	dev->mode_config.prop_crtc_id = prop;
 
-	prop = drm_property_create(dev, DRM_MODE_PROP_BLOB, "FB_DAMAGE_CLIPS",
-				   0);
+	prop = drm_property_create(dev,
+			DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB,
+			"FB_DAMAGE_CLIPS", 0);
 	if (!prop)
 		return -ENOMEM;
 	dev->mode_config.prop_fb_damage_clips = prop;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_mode_object.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_mode_object.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_mode_object.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_mode_object.c	2019-07-28 02:28:39.000000000 -0400
@@ -451,6 +451,7 @@ static int set_property_legacy(struct dr
 }
 
 static int set_property_atomic(struct drm_mode_object *obj,
+			       struct drm_file *file_priv,
 			       struct drm_property *prop,
 			       uint64_t prop_value)
 {
@@ -477,7 +478,7 @@ retry:
 						       obj_to_connector(obj),
 						       prop_value);
 	} else {
-		ret = drm_atomic_set_property(state, obj, prop, prop_value);
+		ret = drm_atomic_set_property(state, file_priv, obj, prop, prop_value);
 		if (ret)
 			goto out;
 		ret = drm_atomic_commit(state);
@@ -520,7 +521,7 @@ int drm_mode_obj_set_property_ioctl(stru
 		goto out_unref;
 
 	if (drm_drv_uses_atomic_modeset(property->dev))
-		ret = set_property_atomic(arg_obj, property, arg->value);
+		ret = set_property_atomic(arg_obj, file_priv, property, arg->value);
 	else
 		ret = set_property_legacy(arg_obj, property, arg->value);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_panel_orientation_quirks.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_panel_orientation_quirks.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_panel_orientation_quirks.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_panel_orientation_quirks.c	2019-07-28 02:28:39.000000000 -0400
@@ -42,6 +42,14 @@ static const struct drm_dmi_panel_orient
 	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
 };
 
+static const struct drm_dmi_panel_orientation_data gpd_micropc = {
+	.width = 720,
+	.height = 1280,
+	.bios_dates = (const char * const []){ "04/26/2019",
+		NULL },
+	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
+};
+
 static const struct drm_dmi_panel_orientation_data gpd_pocket = {
 	.width = 1200,
 	.height = 1920,
@@ -50,6 +58,14 @@ static const struct drm_dmi_panel_orient
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };
 
+static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
+	.width = 1200,
+	.height = 1920,
+	.bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
+		"12/07/2018", NULL },
+	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
+};
+
 static const struct drm_dmi_panel_orientation_data gpd_win = {
 	.width = 720,
 	.height = 1280,
@@ -93,6 +109,14 @@ static const struct dmi_system_id orient
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
 		},
 		.driver_data = (void *)&asus_t100ha,
+	}, {	/* GPD MicroPC (generic strings, also match on bios date) */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
+		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+		},
+		.driver_data = (void *)&gpd_micropc,
 	}, {	/*
 		 * GPD Pocket, note that the the DMI data is less generic then
 		 * it seems, devices with a board-vendor of "AMI Corporation"
@@ -106,6 +130,14 @@ static const struct dmi_system_id orient
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		},
 		.driver_data = (void *)&gpd_pocket,
+	}, {	/* GPD Pocket 2 (generic strings, also match on bios date) */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
+		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+		},
+		.driver_data = (void *)&gpd_pocket2,
 	}, {	/* GPD Win (same note on DMI match as GPD Pocket) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_plane.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_plane.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_plane.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_plane.c	2019-07-28 02:28:39.000000000 -0400
@@ -960,6 +960,11 @@ retry:
 		if (ret)
 			goto out;
 
+		if (!drm_lease_held(file_priv, crtc->cursor->base.id)) {
+			ret = -EACCES;
+			goto out;
+		}
+
 		ret = drm_mode_cursor_universal(crtc, req, file_priv, &ctx);
 		goto out;
 	}
@@ -1062,6 +1067,9 @@ int drm_mode_page_flip_ioctl(struct drm_
 
 	plane = crtc->primary;
 
+	if (!drm_lease_held(file_priv, plane->base.id))
+		return -EACCES;
+
 	if (crtc->funcs->page_flip_target) {
 		u32 current_vblank;
 		int r;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_probe_helper.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_probe_helper.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_probe_helper.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_probe_helper.c	2019-07-28 02:28:39.000000000 -0400
@@ -479,6 +479,13 @@ retry:
 
 	count = (*connector_funcs->get_modes)(connector);
 
+	/*
+	 * Fallback for when DDC probe failed in drm_get_edid() and thus skipped
+	 * override/firmware EDID.
+	 */
+	if (count == 0 && connector->status == connector_status_connected)
+		count = drm_add_override_edid_modes(connector);
+
 	if (count == 0 && connector->status == connector_status_connected)
 		count = drm_add_modes_noedid(connector, 1024, 768);
 	count += drm_helper_probe_add_cmdline_mode(connector);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/drm_writeback.c linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_writeback.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/drm_writeback.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/drm_writeback.c	2019-07-28 02:28:39.000000000 -0400
@@ -268,6 +268,15 @@ void drm_writeback_queue_job(struct drm_
 }
 EXPORT_SYMBOL(drm_writeback_queue_job);
 
+void drm_writeback_cleanup_job(struct drm_writeback_job *job)
+{
+	if (job->fb)
+		drm_framebuffer_put(job->fb);
+
+	kfree(job);
+}
+EXPORT_SYMBOL(drm_writeback_cleanup_job);
+
 /*
  * @cleanup_work: deferred cleanup of a writeback job
  *
@@ -280,10 +289,9 @@ static void cleanup_work(struct work_str
 	struct drm_writeback_job *job = container_of(work,
 						     struct drm_writeback_job,
 						     cleanup_work);
-	drm_framebuffer_put(job->fb);
-	kfree(job);
-}
 
+	drm_writeback_cleanup_job(job);
+}
 
 /**
  * drm_writeback_signal_completion - Signal the completion of a writeback job
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/etnaviv/etnaviv_drv.c linux-libre-5.1.21-gnu/drivers/gpu/drm/etnaviv/etnaviv_drv.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/etnaviv/etnaviv_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/etnaviv/etnaviv_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -515,6 +515,9 @@ static int etnaviv_bind(struct device *d
 	}
 	drm->dev_private = priv;
 
+	dev->dma_parms = &priv->dma_parms;
+	dma_set_max_seg_size(dev, SZ_2G);
+
 	mutex_init(&priv->gem_lock);
 	INIT_LIST_HEAD(&priv->gem_list);
 	priv->num_gpus = 0;
@@ -552,6 +555,8 @@ static void etnaviv_unbind(struct device
 
 	component_unbind_all(dev, drm);
 
+	dev->dma_parms = NULL;
+
 	drm->dev_private = NULL;
 	kfree(priv);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/etnaviv/etnaviv_drv.h linux-libre-5.1.21-gnu/drivers/gpu/drm/etnaviv/etnaviv_drv.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/etnaviv/etnaviv_drv.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/etnaviv/etnaviv_drv.h	2019-07-28 02:28:39.000000000 -0400
@@ -42,6 +42,7 @@ struct etnaviv_file_private {
 
 struct etnaviv_drm_private {
 	int num_gpus;
+	struct device_dma_parameters dma_parms;
 	struct etnaviv_gpu *gpu[ETNA_MAX_PIPES];
 
 	/* list of GEM objects: */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/etnaviv/etnaviv_dump.c linux-libre-5.1.21-gnu/drivers/gpu/drm/etnaviv/etnaviv_dump.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/etnaviv/etnaviv_dump.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/etnaviv/etnaviv_dump.c	2019-07-28 02:28:39.000000000 -0400
@@ -125,6 +125,8 @@ void etnaviv_core_dump(struct etnaviv_gp
 		return;
 	etnaviv_dump_core = false;
 
+	mutex_lock(&gpu->mmu->lock);
+
 	mmu_size = etnaviv_iommu_dump_size(gpu->mmu);
 
 	/* We always dump registers, mmu, ring and end marker */
@@ -167,6 +169,7 @@ void etnaviv_core_dump(struct etnaviv_gp
 	iter.start = __vmalloc(file_size, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
 			       PAGE_KERNEL);
 	if (!iter.start) {
+		mutex_unlock(&gpu->mmu->lock);
 		dev_warn(gpu->dev, "failed to allocate devcoredump file\n");
 		return;
 	}
@@ -234,6 +237,8 @@ void etnaviv_core_dump(struct etnaviv_gp
 					 obj->base.size);
 	}
 
+	mutex_unlock(&gpu->mmu->lock);
+
 	etnaviv_core_dump_header(&iter, ETDUMP_BUF_END, iter.data);
 
 	dev_coredumpv(gpu->dev, iter.start, iter.data - iter.start, GFP_KERNEL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/etnaviv/etnaviv_gpu.c linux-libre-5.1.21-gnu/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/etnaviv/etnaviv_gpu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/etnaviv/etnaviv_gpu.c	2019-07-28 02:28:39.000000000 -0400
@@ -762,7 +762,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu
 	if (IS_ERR(gpu->cmdbuf_suballoc)) {
 		dev_err(gpu->dev, "Failed to create cmdbuf suballocator\n");
 		ret = PTR_ERR(gpu->cmdbuf_suballoc);
-		goto fail;
+		goto destroy_iommu;
 	}
 
 	/* Create buffer: */
@@ -770,7 +770,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu
 				  PAGE_SIZE);
 	if (ret) {
 		dev_err(gpu->dev, "could not create command buffer\n");
-		goto destroy_iommu;
+		goto destroy_suballoc;
 	}
 
 	if (gpu->mmu->version == ETNAVIV_IOMMU_V1 &&
@@ -802,6 +802,9 @@ int etnaviv_gpu_init(struct etnaviv_gpu
 free_buffer:
 	etnaviv_cmdbuf_free(&gpu->buffer);
 	gpu->buffer.suballoc = NULL;
+destroy_suballoc:
+	etnaviv_cmdbuf_suballoc_destroy(gpu->cmdbuf_suballoc);
+	gpu->cmdbuf_suballoc = NULL;
 destroy_iommu:
 	etnaviv_iommu_destroy(gpu->mmu);
 	gpu->mmu = NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/gma500/cdv_intel_lvds.c linux-libre-5.1.21-gnu/drivers/gpu/drm/gma500/cdv_intel_lvds.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/gma500/cdv_intel_lvds.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/gma500/cdv_intel_lvds.c	2019-07-28 02:28:39.000000000 -0400
@@ -594,6 +594,9 @@ void cdv_intel_lvds_init(struct drm_devi
 	int pipe;
 	u8 pin;
 
+	if (!dev_priv->lvds_enabled_in_vbt)
+		return;
+
 	pin = GMBUS_PORT_PANEL;
 	if (!lvds_is_present_in_vbt(dev, &pin)) {
 		DRM_DEBUG_KMS("LVDS is not present in VBT\n");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/gma500/intel_bios.c linux-libre-5.1.21-gnu/drivers/gpu/drm/gma500/intel_bios.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/gma500/intel_bios.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/gma500/intel_bios.c	2019-07-28 02:28:39.000000000 -0400
@@ -436,6 +436,9 @@ parse_driver_features(struct drm_psb_pri
 	if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
 		dev_priv->edp.support = 1;
 
+	dev_priv->lvds_enabled_in_vbt = driver->lvds_config != 0;
+	DRM_DEBUG_KMS("LVDS VBT config bits: 0x%x\n", driver->lvds_config);
+
 	/* This bit means to use 96Mhz for DPLL_A or not */
 	if (driver->primary_lfp_id)
 		dev_priv->dplla_96mhz = true;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/gma500/psb_drv.h linux-libre-5.1.21-gnu/drivers/gpu/drm/gma500/psb_drv.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/gma500/psb_drv.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/gma500/psb_drv.h	2019-07-28 02:28:39.000000000 -0400
@@ -537,6 +537,7 @@ struct drm_psb_private {
 	int lvds_ssc_freq;
 	bool is_lvds_on;
 	bool is_mipi_on;
+	bool lvds_enabled_in_vbt;
 	u32 mipi_ctrl_display;
 
 	unsigned int core_freq;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/gvt/gtt.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/gvt/gtt.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/gvt/gtt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/gvt/gtt.c	2019-07-28 02:28:39.000000000 -0400
@@ -2178,7 +2178,8 @@ static int emulate_ggtt_mmio_write(struc
 	struct intel_gvt_gtt_pte_ops *ops = gvt->gtt.pte_ops;
 	unsigned long g_gtt_index = off >> info->gtt_entry_size_shift;
 	unsigned long gma, gfn;
-	struct intel_gvt_gtt_entry e, m;
+	struct intel_gvt_gtt_entry e = {.val64 = 0, .type = GTT_TYPE_GGTT_PTE};
+	struct intel_gvt_gtt_entry m = {.val64 = 0, .type = GTT_TYPE_GGTT_PTE};
 	dma_addr_t dma_addr;
 	int ret;
 	struct intel_gvt_partial_pte *partial_pte, *pos, *n;
@@ -2245,7 +2246,8 @@ static int emulate_ggtt_mmio_write(struc
 
 	if (!partial_update && (ops->test_present(&e))) {
 		gfn = ops->get_pfn(&e);
-		m = e;
+		m.val64 = e.val64;
+		m.type = e.type;
 
 		/* one PTE update may be issued in multiple writes and the
 		 * first write may not construct a valid gfn
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/gvt/Makefile linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/gvt/Makefile
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/gvt/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/gvt/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -5,5 +5,5 @@ GVT_SOURCE := gvt.o aperture_gm.o handle
 	execlist.o scheduler.o sched_policy.o mmio_context.o cmd_parser.o debugfs.o \
 	fb_decoder.o dmabuf.o page_track.o
 
-ccflags-y				+= -I$(src) -I$(src)/$(GVT_DIR)
+ccflags-y				+= -I $(srctree)/$(src) -I $(srctree)/$(src)/$(GVT_DIR)/
 i915-y					+= $(addprefix $(GVT_DIR)/, $(GVT_SOURCE))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/gvt/scheduler.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/gvt/scheduler.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/gvt/scheduler.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/gvt/scheduler.c	2019-07-28 02:28:39.000000000 -0400
@@ -298,12 +298,31 @@ static int copy_workload_to_ring_buffer(
 	struct i915_request *req = workload->req;
 	void *shadow_ring_buffer_va;
 	u32 *cs;
+	int err;
 
 	if ((IS_KABYLAKE(req->i915) || IS_BROXTON(req->i915)
 		|| IS_COFFEELAKE(req->i915))
 		&& is_inhibit_context(req->hw_context))
 		intel_vgpu_restore_inhibit_context(vgpu, req);
 
+	/*
+	 * To track whether a request has started on HW, we can emit a
+	 * breadcrumb at the beginning of the request and check its
+	 * timeline's HWSP to see if the breadcrumb has advanced past the
+	 * start of this request. Actually, the request must have the
+	 * init_breadcrumb if its timeline set has_init_bread_crumb, or the
+	 * scheduler might get a wrong state of it during reset. Since the
+	 * requests from gvt always set the has_init_breadcrumb flag, here
+	 * need to do the emit_init_breadcrumb for all the requests.
+	 */
+	if (req->engine->emit_init_breadcrumb) {
+		err = req->engine->emit_init_breadcrumb(req);
+		if (err) {
+			gvt_vgpu_err("fail to emit init breadcrumb\n");
+			return err;
+		}
+	}
+
 	/* allocate shadow ring buffer */
 	cs = intel_ring_begin(workload->req, workload->rb_len / sizeof(u32));
 	if (IS_ERR(cs)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/i915_drv.h linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/i915_drv.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/i915_drv.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/i915_drv.h	2019-07-28 02:28:39.000000000 -0400
@@ -280,7 +280,8 @@ struct drm_i915_display_funcs {
 	void (*get_cdclk)(struct drm_i915_private *dev_priv,
 			  struct intel_cdclk_state *cdclk_state);
 	void (*set_cdclk)(struct drm_i915_private *dev_priv,
-			  const struct intel_cdclk_state *cdclk_state);
+			  const struct intel_cdclk_state *cdclk_state,
+			  enum pipe pipe);
 	int (*get_fifo_size)(struct drm_i915_private *dev_priv,
 			     enum i9xx_plane_id i9xx_plane);
 	int (*compute_pipe_wm)(struct intel_crtc_state *cstate);
@@ -1622,6 +1623,8 @@ struct drm_i915_private {
 		struct intel_cdclk_state actual;
 		/* The current hardware cdclk state */
 		struct intel_cdclk_state hw;
+
+		int force_min_cdclk;
 	} cdclk;
 
 	/**
@@ -1741,6 +1744,7 @@ struct drm_i915_private {
 	 *
 	 */
 	struct mutex av_mutex;
+	int audio_power_refcount;
 
 	struct {
 		struct mutex mutex;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/i915_reg.h linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/i915_reg.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/i915_reg.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/i915_reg.h	2019-07-28 02:28:39.000000000 -0400
@@ -32,7 +32,7 @@
  * macros. Do **not** mass change existing definitions just to update the style.
  *
  * Layout
- * ''''''
+ * ~~~~~~
  *
  * Keep helper macros near the top. For example, _PIPE() and friends.
  *
@@ -78,7 +78,7 @@
  * style. Use lower case in hexadecimal values.
  *
  * Naming
- * ''''''
+ * ~~~~~~
  *
  * Try to name registers according to the specs. If the register name changes in
  * the specs from platform to another, stick to the original name.
@@ -96,7 +96,7 @@
  * suffix to the name. For example, ``_SKL`` or ``_GEN8``.
  *
  * Examples
- * ''''''''
+ * ~~~~~~~~
  *
  * (Note that the values in the example are indented using spaces instead of
  * TABs to avoid misalignment in generated documentation. Use TABs in the
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_audio.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_audio.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_audio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_audio.c	2019-07-28 02:28:39.000000000 -0400
@@ -741,15 +741,71 @@ void intel_init_audio_hooks(struct drm_i
 	}
 }
 
+static void glk_force_audio_cdclk(struct drm_i915_private *dev_priv,
+				  bool enable)
+{
+	struct drm_modeset_acquire_ctx ctx;
+	struct drm_atomic_state *state;
+	int ret;
+
+	drm_modeset_acquire_init(&ctx, 0);
+	state = drm_atomic_state_alloc(&dev_priv->drm);
+	if (WARN_ON(!state))
+		return;
+
+	state->acquire_ctx = &ctx;
+
+retry:
+	to_intel_atomic_state(state)->cdclk.force_min_cdclk_changed = true;
+	to_intel_atomic_state(state)->cdclk.force_min_cdclk =
+		enable ? 2 * 96000 : 0;
+
+	/*
+	 * Protects dev_priv->cdclk.force_min_cdclk
+	 * Need to lock this here in case we have no active pipes
+	 * and thus wouldn't lock it during the commit otherwise.
+	 */
+	ret = drm_modeset_lock(&dev_priv->drm.mode_config.connection_mutex,
+			       &ctx);
+	if (!ret)
+		ret = drm_atomic_commit(state);
+
+	if (ret == -EDEADLK) {
+		drm_atomic_state_clear(state);
+		drm_modeset_backoff(&ctx);
+		goto retry;
+	}
+
+	WARN_ON(ret);
+
+	drm_atomic_state_put(state);
+
+	drm_modeset_drop_locks(&ctx);
+	drm_modeset_acquire_fini(&ctx);
+}
+
 static void i915_audio_component_get_power(struct device *kdev)
 {
-	intel_display_power_get(kdev_to_i915(kdev), POWER_DOMAIN_AUDIO);
+	struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
+
+	intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO);
+
+	/* Force CDCLK to 2*BCLK as long as we need audio to be powered. */
+	if (dev_priv->audio_power_refcount++ == 0)
+		if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv))
+			glk_force_audio_cdclk(dev_priv, true);
 }
 
 static void i915_audio_component_put_power(struct device *kdev)
 {
-	intel_display_power_put_unchecked(kdev_to_i915(kdev),
-					  POWER_DOMAIN_AUDIO);
+	struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
+
+	/* Stop forcing CDCLK to 2*BCLK if no need for audio to be powered. */
+	if (--dev_priv->audio_power_refcount == 0)
+		if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv))
+			glk_force_audio_cdclk(dev_priv, false);
+
+	intel_display_power_put_unchecked(dev_priv, POWER_DOMAIN_AUDIO);
 }
 
 static void i915_audio_component_codec_wake_override(struct device *kdev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_cdclk.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_cdclk.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_cdclk.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_cdclk.c	2019-07-28 02:28:39.000000000 -0400
@@ -516,7 +516,8 @@ static void vlv_program_pfi_credits(stru
 }
 
 static void vlv_set_cdclk(struct drm_i915_private *dev_priv,
-			  const struct intel_cdclk_state *cdclk_state)
+			  const struct intel_cdclk_state *cdclk_state,
+			  enum pipe pipe)
 {
 	int cdclk = cdclk_state->cdclk;
 	u32 val, cmd = cdclk_state->voltage_level;
@@ -598,7 +599,8 @@ static void vlv_set_cdclk(struct drm_i91
 }
 
 static void chv_set_cdclk(struct drm_i915_private *dev_priv,
-			  const struct intel_cdclk_state *cdclk_state)
+			  const struct intel_cdclk_state *cdclk_state,
+			  enum pipe pipe)
 {
 	int cdclk = cdclk_state->cdclk;
 	u32 val, cmd = cdclk_state->voltage_level;
@@ -697,7 +699,8 @@ static void bdw_get_cdclk(struct drm_i91
 }
 
 static void bdw_set_cdclk(struct drm_i915_private *dev_priv,
-			  const struct intel_cdclk_state *cdclk_state)
+			  const struct intel_cdclk_state *cdclk_state,
+			  enum pipe pipe)
 {
 	int cdclk = cdclk_state->cdclk;
 	u32 val;
@@ -987,7 +990,8 @@ static void skl_dpll0_disable(struct drm
 }
 
 static void skl_set_cdclk(struct drm_i915_private *dev_priv,
-			  const struct intel_cdclk_state *cdclk_state)
+			  const struct intel_cdclk_state *cdclk_state,
+			  enum pipe pipe)
 {
 	int cdclk = cdclk_state->cdclk;
 	int vco = cdclk_state->vco;
@@ -1158,7 +1162,7 @@ void skl_init_cdclk(struct drm_i915_priv
 	cdclk_state.cdclk = skl_calc_cdclk(0, cdclk_state.vco);
 	cdclk_state.voltage_level = skl_calc_voltage_level(cdclk_state.cdclk);
 
-	skl_set_cdclk(dev_priv, &cdclk_state);
+	skl_set_cdclk(dev_priv, &cdclk_state, INVALID_PIPE);
 }
 
 /**
@@ -1176,7 +1180,7 @@ void skl_uninit_cdclk(struct drm_i915_pr
 	cdclk_state.vco = 0;
 	cdclk_state.voltage_level = skl_calc_voltage_level(cdclk_state.cdclk);
 
-	skl_set_cdclk(dev_priv, &cdclk_state);
+	skl_set_cdclk(dev_priv, &cdclk_state, INVALID_PIPE);
 }
 
 static int bxt_calc_cdclk(int min_cdclk)
@@ -1355,7 +1359,8 @@ static void bxt_de_pll_enable(struct drm
 }
 
 static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
-			  const struct intel_cdclk_state *cdclk_state)
+			  const struct intel_cdclk_state *cdclk_state,
+			  enum pipe pipe)
 {
 	int cdclk = cdclk_state->cdclk;
 	int vco = cdclk_state->vco;
@@ -1408,11 +1413,10 @@ static void bxt_set_cdclk(struct drm_i91
 		bxt_de_pll_enable(dev_priv, vco);
 
 	val = divider | skl_cdclk_decimal(cdclk);
-	/*
-	 * FIXME if only the cd2x divider needs changing, it could be done
-	 * without shutting off the pipe (if only one pipe is active).
-	 */
-	val |= BXT_CDCLK_CD2X_PIPE_NONE;
+	if (pipe == INVALID_PIPE)
+		val |= BXT_CDCLK_CD2X_PIPE_NONE;
+	else
+		val |= BXT_CDCLK_CD2X_PIPE(pipe);
 	/*
 	 * Disable SSA Precharge when CD clock frequency < 500 MHz,
 	 * enable otherwise.
@@ -1421,6 +1425,9 @@ static void bxt_set_cdclk(struct drm_i91
 		val |= BXT_CDCLK_SSA_PRECHARGE_ENABLE;
 	I915_WRITE(CDCLK_CTL, val);
 
+	if (pipe != INVALID_PIPE)
+		intel_wait_for_vblank(dev_priv, pipe);
+
 	mutex_lock(&dev_priv->pcu_lock);
 	/*
 	 * The timeout isn't specified, the 2ms used here is based on
@@ -1525,7 +1532,7 @@ void bxt_init_cdclk(struct drm_i915_priv
 	}
 	cdclk_state.voltage_level = bxt_calc_voltage_level(cdclk_state.cdclk);
 
-	bxt_set_cdclk(dev_priv, &cdclk_state);
+	bxt_set_cdclk(dev_priv, &cdclk_state, INVALID_PIPE);
 }
 
 /**
@@ -1543,7 +1550,7 @@ void bxt_uninit_cdclk(struct drm_i915_pr
 	cdclk_state.vco = 0;
 	cdclk_state.voltage_level = bxt_calc_voltage_level(cdclk_state.cdclk);
 
-	bxt_set_cdclk(dev_priv, &cdclk_state);
+	bxt_set_cdclk(dev_priv, &cdclk_state, INVALID_PIPE);
 }
 
 static int cnl_calc_cdclk(int min_cdclk)
@@ -1663,7 +1670,8 @@ static void cnl_cdclk_pll_enable(struct
 }
 
 static void cnl_set_cdclk(struct drm_i915_private *dev_priv,
-			  const struct intel_cdclk_state *cdclk_state)
+			  const struct intel_cdclk_state *cdclk_state,
+			  enum pipe pipe)
 {
 	int cdclk = cdclk_state->cdclk;
 	int vco = cdclk_state->vco;
@@ -1704,13 +1712,15 @@ static void cnl_set_cdclk(struct drm_i91
 		cnl_cdclk_pll_enable(dev_priv, vco);
 
 	val = divider | skl_cdclk_decimal(cdclk);
-	/*
-	 * FIXME if only the cd2x divider needs changing, it could be done
-	 * without shutting off the pipe (if only one pipe is active).
-	 */
-	val |= BXT_CDCLK_CD2X_PIPE_NONE;
+	if (pipe == INVALID_PIPE)
+		val |= BXT_CDCLK_CD2X_PIPE_NONE;
+	else
+		val |= BXT_CDCLK_CD2X_PIPE(pipe);
 	I915_WRITE(CDCLK_CTL, val);
 
+	if (pipe != INVALID_PIPE)
+		intel_wait_for_vblank(dev_priv, pipe);
+
 	/* inform PCU of the change */
 	mutex_lock(&dev_priv->pcu_lock);
 	sandybridge_pcode_write(dev_priv, SKL_PCODE_CDCLK_CONTROL,
@@ -1847,7 +1857,8 @@ static int icl_calc_cdclk_pll_vco(struct
 }
 
 static void icl_set_cdclk(struct drm_i915_private *dev_priv,
-			  const struct intel_cdclk_state *cdclk_state)
+			  const struct intel_cdclk_state *cdclk_state,
+			  enum pipe pipe)
 {
 	unsigned int cdclk = cdclk_state->cdclk;
 	unsigned int vco = cdclk_state->vco;
@@ -1872,6 +1883,11 @@ static void icl_set_cdclk(struct drm_i91
 	if (dev_priv->cdclk.hw.vco != vco)
 		cnl_cdclk_pll_enable(dev_priv, vco);
 
+	/*
+	 * On ICL CD2X_DIV can only be 1, so we'll never end up changing the
+	 * divider here synchronized to a pipe while CDCLK is on, nor will we
+	 * need the corresponding vblank wait.
+	 */
 	I915_WRITE(CDCLK_CTL, ICL_CDCLK_CD2X_PIPE_NONE |
 			      skl_cdclk_decimal(cdclk));
 
@@ -2002,7 +2018,7 @@ sanitize:
 	sanitized_state.voltage_level =
 				icl_calc_voltage_level(sanitized_state.cdclk);
 
-	icl_set_cdclk(dev_priv, &sanitized_state);
+	icl_set_cdclk(dev_priv, &sanitized_state, INVALID_PIPE);
 }
 
 /**
@@ -2020,7 +2036,7 @@ void icl_uninit_cdclk(struct drm_i915_pr
 	cdclk_state.vco = 0;
 	cdclk_state.voltage_level = icl_calc_voltage_level(cdclk_state.cdclk);
 
-	icl_set_cdclk(dev_priv, &cdclk_state);
+	icl_set_cdclk(dev_priv, &cdclk_state, INVALID_PIPE);
 }
 
 /**
@@ -2048,7 +2064,7 @@ void cnl_init_cdclk(struct drm_i915_priv
 	cdclk_state.vco = cnl_cdclk_pll_vco(dev_priv, cdclk_state.cdclk);
 	cdclk_state.voltage_level = cnl_calc_voltage_level(cdclk_state.cdclk);
 
-	cnl_set_cdclk(dev_priv, &cdclk_state);
+	cnl_set_cdclk(dev_priv, &cdclk_state, INVALID_PIPE);
 }
 
 /**
@@ -2066,7 +2082,7 @@ void cnl_uninit_cdclk(struct drm_i915_pr
 	cdclk_state.vco = 0;
 	cdclk_state.voltage_level = cnl_calc_voltage_level(cdclk_state.cdclk);
 
-	cnl_set_cdclk(dev_priv, &cdclk_state);
+	cnl_set_cdclk(dev_priv, &cdclk_state, INVALID_PIPE);
 }
 
 /**
@@ -2086,6 +2102,27 @@ bool intel_cdclk_needs_modeset(const str
 }
 
 /**
+ * intel_cdclk_needs_cd2x_update - Determine if two CDCLK states require a cd2x divider update
+ * @a: first CDCLK state
+ * @b: second CDCLK state
+ *
+ * Returns:
+ * True if the CDCLK states require just a cd2x divider update, false if not.
+ */
+bool intel_cdclk_needs_cd2x_update(struct drm_i915_private *dev_priv,
+				   const struct intel_cdclk_state *a,
+				   const struct intel_cdclk_state *b)
+{
+	/* Older hw doesn't have the capability */
+	if (INTEL_GEN(dev_priv) < 10 && !IS_GEN9_LP(dev_priv))
+		return false;
+
+	return a->cdclk != b->cdclk &&
+		a->vco == b->vco &&
+		a->ref == b->ref;
+}
+
+/**
  * intel_cdclk_changed - Determine if two CDCLK states are different
  * @a: first CDCLK state
  * @b: second CDCLK state
@@ -2100,6 +2137,26 @@ bool intel_cdclk_changed(const struct in
 		a->voltage_level != b->voltage_level;
 }
 
+/**
+ * intel_cdclk_swap_state - make atomic CDCLK configuration effective
+ * @state: atomic state
+ *
+ * This is the CDCLK version of drm_atomic_helper_swap_state() since the
+ * helper does not handle driver-specific global state.
+ *
+ * Similarly to the atomic helpers this function does a complete swap,
+ * i.e. it also puts the old state into @state. This is used by the commit
+ * code to determine how CDCLK has changed (for instance did it increase or
+ * decrease).
+ */
+void intel_cdclk_swap_state(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+
+	swap(state->cdclk.logical, dev_priv->cdclk.logical);
+	swap(state->cdclk.actual, dev_priv->cdclk.actual);
+}
+
 void intel_dump_cdclk_state(const struct intel_cdclk_state *cdclk_state,
 			    const char *context)
 {
@@ -2113,12 +2170,14 @@ void intel_dump_cdclk_state(const struct
  * intel_set_cdclk - Push the CDCLK state to the hardware
  * @dev_priv: i915 device
  * @cdclk_state: new CDCLK state
+ * @pipe: pipe with which to synchronize the update
  *
  * Program the hardware based on the passed in CDCLK state,
  * if necessary.
  */
-void intel_set_cdclk(struct drm_i915_private *dev_priv,
-		     const struct intel_cdclk_state *cdclk_state)
+static void intel_set_cdclk(struct drm_i915_private *dev_priv,
+			    const struct intel_cdclk_state *cdclk_state,
+			    enum pipe pipe)
 {
 	if (!intel_cdclk_changed(&dev_priv->cdclk.hw, cdclk_state))
 		return;
@@ -2128,7 +2187,7 @@ void intel_set_cdclk(struct drm_i915_pri
 
 	intel_dump_cdclk_state(cdclk_state, "Changing CDCLK to");
 
-	dev_priv->display.set_cdclk(dev_priv, cdclk_state);
+	dev_priv->display.set_cdclk(dev_priv, cdclk_state, pipe);
 
 	if (WARN(intel_cdclk_changed(&dev_priv->cdclk.hw, cdclk_state),
 		 "cdclk state doesn't match!\n")) {
@@ -2137,6 +2196,46 @@ void intel_set_cdclk(struct drm_i915_pri
 	}
 }
 
+/**
+ * intel_set_cdclk_pre_plane_update - Push the CDCLK state to the hardware
+ * @dev_priv: i915 device
+ * @old_state: old CDCLK state
+ * @new_state: new CDCLK state
+ * @pipe: pipe with which to synchronize the update
+ *
+ * Program the hardware before updating the HW plane state based on the passed
+ * in CDCLK state, if necessary.
+ */
+void
+intel_set_cdclk_pre_plane_update(struct drm_i915_private *dev_priv,
+				 const struct intel_cdclk_state *old_state,
+				 const struct intel_cdclk_state *new_state,
+				 enum pipe pipe)
+{
+	if (pipe == INVALID_PIPE || old_state->cdclk <= new_state->cdclk)
+		intel_set_cdclk(dev_priv, new_state, pipe);
+}
+
+/**
+ * intel_set_cdclk_post_plane_update - Push the CDCLK state to the hardware
+ * @dev_priv: i915 device
+ * @old_state: old CDCLK state
+ * @new_state: new CDCLK state
+ * @pipe: pipe with which to synchronize the update
+ *
+ * Program the hardware after updating the HW plane state based on the passed
+ * in CDCLK state, if necessary.
+ */
+void
+intel_set_cdclk_post_plane_update(struct drm_i915_private *dev_priv,
+				  const struct intel_cdclk_state *old_state,
+				  const struct intel_cdclk_state *new_state,
+				  enum pipe pipe)
+{
+	if (pipe != INVALID_PIPE && old_state->cdclk > new_state->cdclk)
+		intel_set_cdclk(dev_priv, new_state, pipe);
+}
+
 static int intel_pixel_rate_to_cdclk(struct drm_i915_private *dev_priv,
 				     int pixel_rate)
 {
@@ -2187,19 +2286,8 @@ int intel_crtc_compute_min_cdclk(const s
 	/*
 	 * According to BSpec, "The CD clock frequency must be at least twice
 	 * the frequency of the Azalia BCLK." and BCLK is 96 MHz by default.
-	 *
-	 * FIXME: Check the actual, not default, BCLK being used.
-	 *
-	 * FIXME: This does not depend on ->has_audio because the higher CDCLK
-	 * is required for audio probe, also when there are no audio capable
-	 * displays connected at probe time. This leads to unnecessarily high
-	 * CDCLK when audio is not required.
-	 *
-	 * FIXME: This limit is only applied when there are displays connected
-	 * at probe time. If we probe without displays, we'll still end up using
-	 * the platform minimum CDCLK, failing audio probe.
 	 */
-	if (INTEL_GEN(dev_priv) >= 9)
+	if (crtc_state->has_audio && INTEL_GEN(dev_priv) >= 9)
 		min_cdclk = max(2 * 96000, min_cdclk);
 
 	/*
@@ -2239,7 +2327,7 @@ static int intel_compute_min_cdclk(struc
 		intel_state->min_cdclk[i] = min_cdclk;
 	}
 
-	min_cdclk = 0;
+	min_cdclk = intel_state->cdclk.force_min_cdclk;
 	for_each_pipe(dev_priv, pipe)
 		min_cdclk = max(intel_state->min_cdclk[pipe], min_cdclk);
 
@@ -2300,7 +2388,8 @@ static int vlv_modeset_calc_cdclk(struct
 		vlv_calc_voltage_level(dev_priv, cdclk);
 
 	if (!intel_state->active_crtcs) {
-		cdclk = vlv_calc_cdclk(dev_priv, 0);
+		cdclk = vlv_calc_cdclk(dev_priv,
+				       intel_state->cdclk.force_min_cdclk);
 
 		intel_state->cdclk.actual.cdclk = cdclk;
 		intel_state->cdclk.actual.voltage_level =
@@ -2333,7 +2422,7 @@ static int bdw_modeset_calc_cdclk(struct
 		bdw_calc_voltage_level(cdclk);
 
 	if (!intel_state->active_crtcs) {
-		cdclk = bdw_calc_cdclk(0);
+		cdclk = bdw_calc_cdclk(intel_state->cdclk.force_min_cdclk);
 
 		intel_state->cdclk.actual.cdclk = cdclk;
 		intel_state->cdclk.actual.voltage_level =
@@ -2405,7 +2494,7 @@ static int skl_modeset_calc_cdclk(struct
 		skl_calc_voltage_level(cdclk);
 
 	if (!intel_state->active_crtcs) {
-		cdclk = skl_calc_cdclk(0, vco);
+		cdclk = skl_calc_cdclk(intel_state->cdclk.force_min_cdclk, vco);
 
 		intel_state->cdclk.actual.vco = vco;
 		intel_state->cdclk.actual.cdclk = cdclk;
@@ -2444,10 +2533,10 @@ static int bxt_modeset_calc_cdclk(struct
 
 	if (!intel_state->active_crtcs) {
 		if (IS_GEMINILAKE(dev_priv)) {
-			cdclk = glk_calc_cdclk(0);
+			cdclk = glk_calc_cdclk(intel_state->cdclk.force_min_cdclk);
 			vco = glk_de_pll_vco(dev_priv, cdclk);
 		} else {
-			cdclk = bxt_calc_cdclk(0);
+			cdclk = bxt_calc_cdclk(intel_state->cdclk.force_min_cdclk);
 			vco = bxt_de_pll_vco(dev_priv, cdclk);
 		}
 
@@ -2483,7 +2572,7 @@ static int cnl_modeset_calc_cdclk(struct
 		    cnl_compute_min_voltage_level(intel_state));
 
 	if (!intel_state->active_crtcs) {
-		cdclk = cnl_calc_cdclk(0);
+		cdclk = cnl_calc_cdclk(intel_state->cdclk.force_min_cdclk);
 		vco = cnl_cdclk_pll_vco(dev_priv, cdclk);
 
 		intel_state->cdclk.actual.vco = vco;
@@ -2519,7 +2608,7 @@ static int icl_modeset_calc_cdclk(struct
 		    cnl_compute_min_voltage_level(intel_state));
 
 	if (!intel_state->active_crtcs) {
-		cdclk = icl_calc_cdclk(0, ref);
+		cdclk = icl_calc_cdclk(intel_state->cdclk.force_min_cdclk, ref);
 		vco = icl_calc_cdclk_pll_vco(dev_priv, cdclk);
 
 		intel_state->cdclk.actual.vco = vco;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_csr.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_csr.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_csr.c	2019-05-05 21:22:26.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_csr.c	2019-07-28 13:23:33.000000000 -0400
@@ -300,10 +300,17 @@ static u32 *parse_csr_fw(struct drm_i915
 	u32 dmc_offset = CSR_DEFAULT_FW_OFFSET, readcount = 0, nbytes;
 	u32 i;
 	u32 *dmc_payload;
+	size_t fsize;
 
 	if (!fw)
 		return NULL;
 
+	fsize = sizeof(struct intel_css_header) +
+		sizeof(struct intel_package_header) +
+		sizeof(struct intel_dmc_header);
+	if (fsize > fw->size)
+		goto error_truncated;
+
 	/* Extract CSS Header information*/
 	css_header = (struct intel_css_header *)fw->data;
 	if (sizeof(struct intel_css_header) !=
@@ -363,6 +370,9 @@ static u32 *parse_csr_fw(struct drm_i915
 	/* Convert dmc_offset into number of bytes. By default it is in dwords*/
 	dmc_offset *= 4;
 	readcount += dmc_offset;
+	fsize += dmc_offset;
+	if (fsize > fw->size)
+		goto error_truncated;
 
 	/* Extract dmc_header information. */
 	dmc_header = (struct intel_dmc_header *)&fw->data[readcount];
@@ -394,6 +404,10 @@ static u32 *parse_csr_fw(struct drm_i915
 
 	/* fw_size is in dwords, so multiplied by 4 to convert into bytes. */
 	nbytes = dmc_header->fw_size * 4;
+	fsize += nbytes;
+	if (fsize > fw->size)
+		goto error_truncated;
+
 	if (nbytes > csr->max_fw_size) {
 		DRM_ERROR("DMC FW too big (%u bytes)\n", nbytes);
 		return NULL;
@@ -407,6 +421,10 @@ static u32 *parse_csr_fw(struct drm_i915
 	}
 
 	return memcpy(dmc_payload, &fw->data[readcount], nbytes);
+
+error_truncated:
+	DRM_ERROR("Truncated DMC firmware, rejecting.\n");
+	return NULL;
 }
 
 static void intel_csr_runtime_pm_get(struct drm_i915_private *dev_priv)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_display.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_display.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_display.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_display.c	2019-07-28 02:28:39.000000000 -0400
@@ -2444,10 +2444,14 @@ static unsigned int intel_fb_modifier_to
  * main surface.
  */
 static const struct drm_format_info ccs_formats[] = {
-	{ .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 2, .cpp = { 4, 1, }, .hsub = 8, .vsub = 16, },
-	{ .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 2, .cpp = { 4, 1, }, .hsub = 8, .vsub = 16, },
-	{ .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 2, .cpp = { 4, 1, }, .hsub = 8, .vsub = 16, },
-	{ .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 2, .cpp = { 4, 1, }, .hsub = 8, .vsub = 16, },
+	{ .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 2,
+	  .cpp = { 4, 1, }, .hsub = 8, .vsub = 16, },
+	{ .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 2,
+	  .cpp = { 4, 1, }, .hsub = 8, .vsub = 16, },
+	{ .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 2,
+	  .cpp = { 4, 1, }, .hsub = 8, .vsub = 16, .has_alpha = true, },
+	{ .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 2,
+	  .cpp = { 4, 1, }, .hsub = 8, .vsub = 16, .has_alpha = true, },
 };
 
 static const struct drm_format_info *
@@ -11757,7 +11761,7 @@ encoder_retry:
 	return 0;
 }
 
-static bool intel_fuzzy_clock_check(int clock1, int clock2)
+bool intel_fuzzy_clock_check(int clock1, int clock2)
 {
 	int diff;
 
@@ -11816,9 +11820,6 @@ intel_compare_link_m_n(const struct inte
 			      m2_n2->gmch_m, m2_n2->gmch_n, !adjust) &&
 	    intel_compare_m_n(m_n->link_m, m_n->link_n,
 			      m2_n2->link_m, m2_n2->link_n, !adjust)) {
-		if (adjust)
-			*m2_n2 = *m_n;
-
 		return true;
 	}
 
@@ -12769,10 +12770,16 @@ static int intel_modeset_checks(struct d
 		return -EINVAL;
 	}
 
+	/* keep the current setting */
+	if (!intel_state->cdclk.force_min_cdclk_changed)
+		intel_state->cdclk.force_min_cdclk =
+			dev_priv->cdclk.force_min_cdclk;
+
 	intel_state->modeset = true;
 	intel_state->active_crtcs = dev_priv->active_crtcs;
 	intel_state->cdclk.logical = dev_priv->cdclk.logical;
 	intel_state->cdclk.actual = dev_priv->cdclk.actual;
+	intel_state->cdclk.pipe = INVALID_PIPE;
 
 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
 		if (new_crtc_state->active)
@@ -12792,6 +12799,8 @@ static int intel_modeset_checks(struct d
 	 * adjusted_mode bits in the crtc directly.
 	 */
 	if (dev_priv->display.modeset_calc_cdclk) {
+		enum pipe pipe;
+
 		ret = dev_priv->display.modeset_calc_cdclk(state);
 		if (ret < 0)
 			return ret;
@@ -12808,12 +12817,36 @@ static int intel_modeset_checks(struct d
 				return ret;
 		}
 
+		if (is_power_of_2(intel_state->active_crtcs)) {
+			struct drm_crtc *crtc;
+			struct drm_crtc_state *crtc_state;
+
+			pipe = ilog2(intel_state->active_crtcs);
+			crtc = &intel_get_crtc_for_pipe(dev_priv, pipe)->base;
+			crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+			if (crtc_state && needs_modeset(crtc_state))
+				pipe = INVALID_PIPE;
+		} else {
+			pipe = INVALID_PIPE;
+		}
+
 		/* All pipes must be switched off while we change the cdclk. */
-		if (intel_cdclk_needs_modeset(&dev_priv->cdclk.actual,
-					      &intel_state->cdclk.actual)) {
+		if (pipe != INVALID_PIPE &&
+		    intel_cdclk_needs_cd2x_update(dev_priv,
+						  &dev_priv->cdclk.actual,
+						  &intel_state->cdclk.actual)) {
+			ret = intel_lock_all_pipes(state);
+			if (ret < 0)
+				return ret;
+
+			intel_state->cdclk.pipe = pipe;
+		} else if (intel_cdclk_needs_modeset(&dev_priv->cdclk.actual,
+						     &intel_state->cdclk.actual)) {
 			ret = intel_modeset_all_pipes(state);
 			if (ret < 0)
 				return ret;
+
+			intel_state->cdclk.pipe = INVALID_PIPE;
 		}
 
 		DRM_DEBUG_KMS("New cdclk calculated to be logical %u kHz, actual %u kHz\n",
@@ -12822,8 +12855,6 @@ static int intel_modeset_checks(struct d
 		DRM_DEBUG_KMS("New voltage level calculated to be logical %u, actual %u\n",
 			      intel_state->cdclk.logical.voltage_level,
 			      intel_state->cdclk.actual.voltage_level);
-	} else {
-		to_intel_atomic_state(state)->cdclk.logical = dev_priv->cdclk.logical;
 	}
 
 	intel_modeset_clear_plls(state);
@@ -12851,6 +12882,33 @@ static int calc_watermark_data(struct in
 	return 0;
 }
 
+static void intel_crtc_check_fastset(struct intel_crtc_state *old_crtc_state,
+				     struct intel_crtc_state *new_crtc_state)
+{
+	struct drm_i915_private *dev_priv =
+		to_i915(new_crtc_state->base.crtc->dev);
+
+	if (!intel_pipe_config_compare(dev_priv, old_crtc_state,
+				       new_crtc_state, true))
+		return;
+
+	new_crtc_state->base.mode_changed = false;
+	new_crtc_state->update_pipe = true;
+
+	/*
+	 * If we're not doing the full modeset we want to
+	 * keep the current M/N values as they may be
+	 * sufficiently different to the computed values
+	 * to cause problems.
+	 *
+	 * FIXME: should really copy more fuzzy state here
+	 */
+	new_crtc_state->fdi_m_n = old_crtc_state->fdi_m_n;
+	new_crtc_state->dp_m_n = old_crtc_state->dp_m_n;
+	new_crtc_state->dp_m2_n2 = old_crtc_state->dp_m2_n2;
+	new_crtc_state->has_drrs = old_crtc_state->has_drrs;
+}
+
 /**
  * intel_atomic_check - validate state object
  * @dev: drm device
@@ -12864,7 +12922,7 @@ static int intel_atomic_check(struct drm
 	struct drm_crtc *crtc;
 	struct drm_crtc_state *old_crtc_state, *crtc_state;
 	int ret, i;
-	bool any_ms = false;
+	bool any_ms = intel_state->cdclk.force_min_cdclk_changed;
 
 	/* Catch I915_MODE_FLAG_INHERITED */
 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
@@ -12899,12 +12957,8 @@ static int intel_atomic_check(struct drm
 			return ret;
 		}
 
-		if (intel_pipe_config_compare(dev_priv,
-					to_intel_crtc_state(old_crtc_state),
-					pipe_config, true)) {
-			crtc_state->mode_changed = false;
-			pipe_config->update_pipe = true;
-		}
+		intel_crtc_check_fastset(to_intel_crtc_state(old_crtc_state),
+					 pipe_config);
 
 		if (needs_modeset(crtc_state))
 			any_ms = true;
@@ -13224,7 +13278,10 @@ static void intel_atomic_commit_tail(str
 	if (intel_state->modeset) {
 		drm_atomic_helper_update_legacy_modeset_state(state->dev, state);
 
-		intel_set_cdclk(dev_priv, &dev_priv->cdclk.actual);
+		intel_set_cdclk_pre_plane_update(dev_priv,
+						 &intel_state->cdclk.actual,
+						 &dev_priv->cdclk.actual,
+						 intel_state->cdclk.pipe);
 
 		/*
 		 * SKL workaround: bspec recommends we disable the SAGV when we
@@ -13253,6 +13310,12 @@ static void intel_atomic_commit_tail(str
 	/* Now enable the clocks, plane, pipe, and connectors that we set up. */
 	dev_priv->display.update_crtcs(state);
 
+	if (intel_state->modeset)
+		intel_set_cdclk_post_plane_update(dev_priv,
+						  &intel_state->cdclk.actual,
+						  &dev_priv->cdclk.actual,
+						  intel_state->cdclk.pipe);
+
 	/* FIXME: We should call drm_atomic_helper_commit_hw_done() here
 	 * already, but still need the state for the delayed optimization. To
 	 * fix this:
@@ -13454,8 +13517,10 @@ static int intel_atomic_commit(struct dr
 		       intel_state->min_voltage_level,
 		       sizeof(intel_state->min_voltage_level));
 		dev_priv->active_crtcs = intel_state->active_crtcs;
-		dev_priv->cdclk.logical = intel_state->cdclk.logical;
-		dev_priv->cdclk.actual = intel_state->cdclk.actual;
+		dev_priv->cdclk.force_min_cdclk =
+			intel_state->cdclk.force_min_cdclk;
+
+		intel_cdclk_swap_state(intel_state);
 	}
 
 	drm_atomic_state_get(state);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_drv.h linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_drv.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_drv.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_drv.h	2019-07-28 02:28:39.000000000 -0400
@@ -480,6 +480,11 @@ struct intel_atomic_state {
 		 * state only when all crtc's are DPMS off.
 		 */
 		struct intel_cdclk_state actual;
+
+		int force_min_cdclk;
+		bool force_min_cdclk_changed;
+		/* pipe to which cd2x update is synchronized */
+		enum pipe pipe;
 	} cdclk;
 
 	bool dpll_set, modeset;
@@ -1590,12 +1595,24 @@ void intel_init_cdclk_hooks(struct drm_i
 void intel_update_max_cdclk(struct drm_i915_private *dev_priv);
 void intel_update_cdclk(struct drm_i915_private *dev_priv);
 void intel_update_rawclk(struct drm_i915_private *dev_priv);
+bool intel_cdclk_needs_cd2x_update(struct drm_i915_private *dev_priv,
+				   const struct intel_cdclk_state *a,
+				   const struct intel_cdclk_state *b);
 bool intel_cdclk_needs_modeset(const struct intel_cdclk_state *a,
 			       const struct intel_cdclk_state *b);
 bool intel_cdclk_changed(const struct intel_cdclk_state *a,
 			 const struct intel_cdclk_state *b);
-void intel_set_cdclk(struct drm_i915_private *dev_priv,
-		     const struct intel_cdclk_state *cdclk_state);
+void intel_cdclk_swap_state(struct intel_atomic_state *state);
+void
+intel_set_cdclk_pre_plane_update(struct drm_i915_private *dev_priv,
+				 const struct intel_cdclk_state *old_state,
+				 const struct intel_cdclk_state *new_state,
+				 enum pipe pipe);
+void
+intel_set_cdclk_post_plane_update(struct drm_i915_private *dev_priv,
+				  const struct intel_cdclk_state *old_state,
+				  const struct intel_cdclk_state *new_state,
+				  enum pipe pipe);
 void intel_dump_cdclk_state(const struct intel_cdclk_state *cdclk_state,
 			    const char *context);
 
@@ -1707,6 +1724,7 @@ int vlv_force_pll_on(struct drm_i915_pri
 		     const struct dpll *dpll);
 void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe);
 int lpt_get_iclkip(struct drm_i915_private *dev_priv);
+bool intel_fuzzy_clock_check(int clock1, int clock2);
 
 /* modesetting asserts */
 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_dsi_vbt.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_dsi_vbt.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_dsi_vbt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_dsi_vbt.c	2019-07-28 02:28:39.000000000 -0400
@@ -871,6 +871,17 @@ bool intel_dsi_vbt_init(struct intel_dsi
 		if (mipi_config->target_burst_mode_freq) {
 			u32 bitrate = intel_dsi_bitrate(intel_dsi);
 
+			/*
+			 * Sometimes the VBT contains a slightly lower clock,
+			 * then the bitrate we have calculated, in this case
+			 * just replace it with the calculated bitrate.
+			 */
+			if (mipi_config->target_burst_mode_freq < bitrate &&
+			    intel_fuzzy_clock_check(
+					mipi_config->target_burst_mode_freq,
+					bitrate))
+				mipi_config->target_burst_mode_freq = bitrate;
+
 			if (mipi_config->target_burst_mode_freq < bitrate) {
 				DRM_ERROR("Burst mode freq is less than computed\n");
 				return false;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_fbc.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_fbc.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_fbc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_fbc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1278,6 +1278,10 @@ static int intel_sanitize_fbc_option(str
 	if (!HAS_FBC(dev_priv))
 		return 0;
 
+	/* https://bugs.freedesktop.org/show_bug.cgi?id=108085 */
+	if (IS_GEMINILAKE(dev_priv))
+		return 0;
+
 	if (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9)
 		return 1;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c	2019-07-28 02:28:39.000000000 -0400
@@ -1957,12 +1957,12 @@ static int ring_request_alloc(struct i91
 	 */
 	request->reserved_space += LEGACY_REQUEST_SIZE;
 
-	ret = switch_context(request);
+	/* Unconditionally invalidate GPU caches and TLBs. */
+	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
 	if (ret)
 		return ret;
 
-	/* Unconditionally invalidate GPU caches and TLBs. */
-	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
+	ret = switch_context(request);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_sdvo.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_sdvo.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_sdvo.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_sdvo.c	2019-07-28 02:28:39.000000000 -0400
@@ -909,6 +909,13 @@ static bool intel_sdvo_set_colorimetry(s
 	return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
 }
 
+static bool intel_sdvo_set_audio_state(struct intel_sdvo *intel_sdvo,
+				       u8 audio_state)
+{
+	return intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_AUDIO_STAT,
+				    &audio_state, 1);
+}
+
 #if 0
 static void intel_sdvo_dump_hdmi_buf(struct intel_sdvo *intel_sdvo)
 {
@@ -1366,11 +1373,6 @@ static void intel_sdvo_pre_enable(struct
 	else
 		sdvox |= SDVO_PIPE_SEL(crtc->pipe);
 
-	if (crtc_state->has_audio) {
-		WARN_ON_ONCE(INTEL_GEN(dev_priv) < 4);
-		sdvox |= SDVO_AUDIO_ENABLE;
-	}
-
 	if (INTEL_GEN(dev_priv) >= 4) {
 		/* done in crtc_mode_set as the dpll_md reg must be written early */
 	} else if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) ||
@@ -1510,8 +1512,13 @@ static void intel_sdvo_get_config(struct
 	if (sdvox & HDMI_COLOR_RANGE_16_235)
 		pipe_config->limited_color_range = true;
 
-	if (sdvox & SDVO_AUDIO_ENABLE)
-		pipe_config->has_audio = true;
+	if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_AUDIO_STAT,
+				 &val, 1)) {
+		u8 mask = SDVO_AUDIO_ELD_VALID | SDVO_AUDIO_PRESENCE_DETECT;
+
+		if ((val & mask) == mask)
+			pipe_config->has_audio = true;
+	}
 
 	if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ENCODE,
 				 &val, 1)) {
@@ -1524,6 +1531,32 @@ static void intel_sdvo_get_config(struct
 	     pipe_config->pixel_multiplier, encoder_pixel_multiplier);
 }
 
+static void intel_sdvo_disable_audio(struct intel_sdvo *intel_sdvo)
+{
+	intel_sdvo_set_audio_state(intel_sdvo, 0);
+}
+
+static void intel_sdvo_enable_audio(struct intel_sdvo *intel_sdvo,
+				    const struct intel_crtc_state *crtc_state,
+				    const struct drm_connector_state *conn_state)
+{
+	const struct drm_display_mode *adjusted_mode =
+		&crtc_state->base.adjusted_mode;
+	struct drm_connector *connector = conn_state->connector;
+	u8 *eld = connector->eld;
+
+	eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2;
+
+	intel_sdvo_set_audio_state(intel_sdvo, 0);
+
+	intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_ELD,
+				   SDVO_HBUF_TX_DISABLED,
+				   eld, drm_eld_size(eld));
+
+	intel_sdvo_set_audio_state(intel_sdvo, SDVO_AUDIO_ELD_VALID |
+				   SDVO_AUDIO_PRESENCE_DETECT);
+}
+
 static void intel_disable_sdvo(struct intel_encoder *encoder,
 			       const struct intel_crtc_state *old_crtc_state,
 			       const struct drm_connector_state *conn_state)
@@ -1533,6 +1566,9 @@ static void intel_disable_sdvo(struct in
 	struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
 	u32 temp;
 
+	if (old_crtc_state->has_audio)
+		intel_sdvo_disable_audio(intel_sdvo);
+
 	intel_sdvo_set_active_outputs(intel_sdvo, 0);
 	if (0)
 		intel_sdvo_set_encoder_power_state(intel_sdvo,
@@ -1618,6 +1654,9 @@ static void intel_enable_sdvo(struct int
 		intel_sdvo_set_encoder_power_state(intel_sdvo,
 						   DRM_MODE_DPMS_ON);
 	intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
+
+	if (pipe_config->has_audio)
+		intel_sdvo_enable_audio(intel_sdvo, pipe_config, conn_state);
 }
 
 static enum drm_mode_status
@@ -2480,7 +2519,6 @@ static bool
 intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
 {
 	struct drm_encoder *encoder = &intel_sdvo->base.base;
-	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
 	struct drm_connector *connector;
 	struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
 	struct intel_connector *intel_connector;
@@ -2517,9 +2555,7 @@ intel_sdvo_dvi_init(struct intel_sdvo *i
 	encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
 	connector->connector_type = DRM_MODE_CONNECTOR_DVID;
 
-	/* gen3 doesn't do the hdmi bits in the SDVO register */
-	if (INTEL_GEN(dev_priv) >= 4 &&
-	    intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
+	if (intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
 		connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
 		intel_sdvo_connector->is_hdmi = true;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_sdvo_regs.h linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_sdvo_regs.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_sdvo_regs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_sdvo_regs.h	2019-07-28 02:28:39.000000000 -0400
@@ -707,6 +707,9 @@ struct intel_sdvo_enhancements_arg {
 #define SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER 0x90
 #define SDVO_CMD_SET_AUDIO_STAT		0x91
 #define SDVO_CMD_GET_AUDIO_STAT		0x92
+  #define SDVO_AUDIO_ELD_VALID		(1 << 0)
+  #define SDVO_AUDIO_PRESENCE_DETECT	(1 << 1)
+  #define SDVO_AUDIO_CP_READY		(1 << 2)
 #define SDVO_CMD_SET_HBUF_INDEX		0x93
   #define SDVO_HBUF_INDEX_ELD		0
   #define SDVO_HBUF_INDEX_AVI_IF	1
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_workarounds.c linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_workarounds.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/i915/intel_workarounds.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/i915/intel_workarounds.c	2019-07-28 02:28:39.000000000 -0400
@@ -37,7 +37,7 @@
  *    costly and simplifies things. We can revisit this in the future.
  *
  * Layout
- * ''''''
+ * ~~~~~~
  *
  * Keep things in this file ordered by WA type, as per the above (context, GT,
  * display, register whitelist, batchbuffer). Then, inside each type, keep the
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/imx/ipuv3-crtc.c linux-libre-5.1.21-gnu/drivers/gpu/drm/imx/ipuv3-crtc.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/imx/ipuv3-crtc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/imx/ipuv3-crtc.c	2019-07-28 02:28:39.000000000 -0400
@@ -91,14 +91,14 @@ static void ipu_crtc_atomic_disable(stru
 	ipu_dc_disable(ipu);
 	ipu_prg_disable(ipu);
 
+	drm_crtc_vblank_off(crtc);
+
 	spin_lock_irq(&crtc->dev->event_lock);
-	if (crtc->state->event) {
+	if (crtc->state->event && !crtc->state->active) {
 		drm_crtc_send_vblank_event(crtc, crtc->state->event);
 		crtc->state->event = NULL;
 	}
 	spin_unlock_irq(&crtc->dev->event_lock);
-
-	drm_crtc_vblank_off(crtc);
 }
 
 static void imx_drm_crtc_reset(struct drm_crtc *crtc)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/imx/ipuv3-plane.c linux-libre-5.1.21-gnu/drivers/gpu/drm/imx/ipuv3-plane.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/imx/ipuv3-plane.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/imx/ipuv3-plane.c	2019-07-28 02:28:39.000000000 -0400
@@ -605,7 +605,6 @@ static void ipu_plane_atomic_update(stru
 		active = ipu_idmac_get_current_buffer(ipu_plane->ipu_ch);
 		ipu_cpmem_set_buffer(ipu_plane->ipu_ch, !active, eba);
 		ipu_idmac_select_buffer(ipu_plane->ipu_ch, !active);
-		ipu_plane->next_buf = !active;
 		if (ipu_plane_separate_alpha(ipu_plane)) {
 			active = ipu_idmac_get_current_buffer(ipu_plane->alpha_ch);
 			ipu_cpmem_set_buffer(ipu_plane->alpha_ch, !active,
@@ -710,7 +709,6 @@ static void ipu_plane_atomic_update(stru
 	ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 1, eba);
 	ipu_idmac_lock_enable(ipu_plane->ipu_ch, num_bursts);
 	ipu_plane_enable(ipu_plane);
-	ipu_plane->next_buf = -1;
 }
 
 static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
@@ -732,10 +730,15 @@ bool ipu_plane_atomic_update_pending(str
 
 	if (ipu_state->use_pre)
 		return ipu_prg_channel_configure_pending(ipu_plane->ipu_ch);
-	else if (ipu_plane->next_buf >= 0)
-		return ipu_idmac_get_current_buffer(ipu_plane->ipu_ch) !=
-		       ipu_plane->next_buf;
 
+	/*
+	 * Pretend no update is pending in the non-PRE/PRG case. For this to
+	 * happen, an atomic update would have to be deferred until after the
+	 * start of the next frame and simultaneously interrupt latency would
+	 * have to be high enough to let the atomic update finish and issue an
+	 * event before the previous end of frame interrupt handler can be
+	 * executed.
+	 */
 	return false;
 }
 int ipu_planes_assign_pre(struct drm_device *dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/imx/ipuv3-plane.h linux-libre-5.1.21-gnu/drivers/gpu/drm/imx/ipuv3-plane.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/imx/ipuv3-plane.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/imx/ipuv3-plane.h	2019-07-28 02:28:39.000000000 -0400
@@ -27,7 +27,6 @@ struct ipu_plane {
 	int			dp_flow;
 
 	bool			disabling;
-	int			next_buf;
 };
 
 struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/mediatek/mtk_drm_drv.c linux-libre-5.1.21-gnu/drivers/gpu/drm/mediatek/mtk_drm_drv.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/mediatek/mtk_drm_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/mediatek/mtk_drm_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -311,6 +311,7 @@ err_config_cleanup:
 static void mtk_drm_kms_deinit(struct drm_device *drm)
 {
 	drm_kms_helper_poll_fini(drm);
+	drm_atomic_helper_shutdown(drm);
 
 	component_unbind_all(drm->dev, drm);
 	drm_mode_config_cleanup(drm);
@@ -397,7 +398,9 @@ static void mtk_drm_unbind(struct device
 	struct mtk_drm_private *private = dev_get_drvdata(dev);
 
 	drm_dev_unregister(private->drm);
+	mtk_drm_kms_deinit(private->drm);
 	drm_dev_put(private->drm);
+	private->num_pipes = 0;
 	private->drm = NULL;
 }
 
@@ -568,13 +571,8 @@ err_node:
 static int mtk_drm_remove(struct platform_device *pdev)
 {
 	struct mtk_drm_private *private = platform_get_drvdata(pdev);
-	struct drm_device *drm = private->drm;
 	int i;
 
-	drm_dev_unregister(drm);
-	mtk_drm_kms_deinit(drm);
-	drm_dev_put(drm);
-
 	component_master_del(&pdev->dev, &mtk_drm_ops);
 	pm_runtime_disable(&pdev->dev);
 	of_node_put(private->mutex_node);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/mediatek/mtk_dsi.c linux-libre-5.1.21-gnu/drivers/gpu/drm/mediatek/mtk_dsi.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/mediatek/mtk_dsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/mediatek/mtk_dsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -630,6 +630,15 @@ static void mtk_dsi_poweroff(struct mtk_
 	if (--dsi->refcount != 0)
 		return;
 
+	/*
+	 * mtk_dsi_stop() and mtk_dsi_start() is asymmetric, since
+	 * mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(),
+	 * which needs irq for vblank, and mtk_dsi_stop() will disable irq.
+	 * mtk_dsi_start() needs to be called in mtk_output_dsi_enable(),
+	 * after dsi is fully set.
+	 */
+	mtk_dsi_stop(dsi);
+
 	if (!mtk_dsi_switch_to_cmd_mode(dsi, VM_DONE_INT_FLAG, 500)) {
 		if (dsi->panel) {
 			if (drm_panel_unprepare(dsi->panel)) {
@@ -696,7 +705,6 @@ static void mtk_output_dsi_disable(struc
 		}
 	}
 
-	mtk_dsi_stop(dsi);
 	mtk_dsi_poweroff(dsi);
 
 	dsi->enabled = false;
@@ -844,6 +852,8 @@ static void mtk_dsi_destroy_conn_enc(str
 	/* Skip connector cleanup if creation was delegated to the bridge */
 	if (dsi->conn.dev)
 		drm_connector_cleanup(&dsi->conn);
+	if (dsi->panel)
+		drm_panel_detach(dsi->panel);
 }
 
 static void mtk_dsi_ddp_start(struct mtk_ddp_comp *comp)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/msm/adreno/a5xx_gpu.c linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/msm/adreno/a5xx_gpu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/adreno/a5xx_gpu.c	2019-07-28 02:28:39.000000000 -0400
@@ -34,7 +34,7 @@ static int zap_shader_load_mdt(struct ms
 {
 	struct device *dev = &gpu->pdev->dev;
 	const struct firmware *fw;
-	struct device_node *np;
+	struct device_node *np, *mem_np;
 	struct resource r;
 	phys_addr_t mem_phys;
 	ssize_t mem_size;
@@ -48,11 +48,13 @@ static int zap_shader_load_mdt(struct ms
 	if (!np)
 		return -ENODEV;
 
-	np = of_parse_phandle(np, "memory-region", 0);
-	if (!np)
+	mem_np = of_parse_phandle(np, "memory-region", 0);
+	of_node_put(np);
+	if (!mem_np)
 		return -EINVAL;
 
-	ret = of_address_to_resource(np, 0, &r);
+	ret = of_address_to_resource(mem_np, 0, &r);
+	of_node_put(mem_np);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c	2019-07-28 02:28:39.000000000 -0400
@@ -1023,13 +1023,13 @@ static void dpu_encoder_virt_mode_set(st
 			if (!dpu_enc->hw_pp[i]) {
 				DPU_ERROR_ENC(dpu_enc, "no pp block assigned"
 					     "at idx: %d\n", i);
-				return;
+				goto error;
 			}
 
 			if (!hw_ctl[i]) {
 				DPU_ERROR_ENC(dpu_enc, "no ctl block assigned"
 					     "at idx: %d\n", i);
-				return;
+				goto error;
 			}
 
 			phys->hw_pp = dpu_enc->hw_pp[i];
@@ -1042,6 +1042,9 @@ static void dpu_encoder_virt_mode_set(st
 	}
 
 	dpu_enc->mode_set_complete = true;
+
+error:
+	dpu_rm_release(&dpu_kms->rm, drm_enc);
 }
 
 static void _dpu_encoder_virt_enable_helper(struct drm_encoder *drm_enc)
@@ -1547,8 +1550,14 @@ static void _dpu_encoder_kickoff_phys(st
 		if (!ctl)
 			continue;
 
-		if (phys->split_role != ENC_ROLE_SLAVE)
+		/*
+		 * This is cleared in frame_done worker, which isn't invoked
+		 * for async commits. So don't set this for async, since it'll
+		 * roll over to the next commit.
+		 */
+		if (!async && phys->split_role != ENC_ROLE_SLAVE)
 			set_bit(i, dpu_enc->frame_busy_mask);
+
 		if (!phys->ops.needs_single_flush ||
 				!phys->ops.needs_single_flush(phys))
 			_dpu_encoder_trigger_flush(&dpu_enc->base, phys, 0x0,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c	2019-07-28 02:28:39.000000000 -0400
@@ -502,6 +502,8 @@ static int mdp5_plane_atomic_async_check
 static void mdp5_plane_atomic_async_update(struct drm_plane *plane,
 					   struct drm_plane_state *new_state)
 {
+	struct drm_framebuffer *old_fb = plane->state->fb;
+
 	plane->state->src_x = new_state->src_x;
 	plane->state->src_y = new_state->src_y;
 	plane->state->crtc_x = new_state->crtc_x;
@@ -524,6 +526,8 @@ static void mdp5_plane_atomic_async_upda
 
 	*to_mdp5_plane_state(plane->state) =
 		*to_mdp5_plane_state(new_state);
+
+	new_state->fb = old_fb;
 }
 
 static const struct drm_plane_helper_funcs mdp5_plane_helper_funcs = {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/msm/Makefile linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/Makefile
--- linux-libre-5.1-gnu/drivers/gpu/drm/msm/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
-ccflags-y := -Idrivers/gpu/drm/msm
-ccflags-y += -Idrivers/gpu/drm/msm/disp/dpu1
-ccflags-$(CONFIG_DRM_MSM_DSI) += -Idrivers/gpu/drm/msm/dsi
+ccflags-y := -I $(srctree)/$(src)
+ccflags-y += -I $(srctree)/$(src)/disp/dpu1
+ccflags-$(CONFIG_DRM_MSM_DSI) += -I $(srctree)/$(src)/dsi
 
 msm-y := \
 	adreno/adreno_device.o \
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/msm/msm_gem.c linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/msm_gem.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/msm/msm_gem.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/msm_gem.c	2019-07-28 02:28:39.000000000 -0400
@@ -805,7 +805,8 @@ void msm_gem_describe(struct drm_gem_obj
 		seq_puts(m, "      vmas:");
 
 		list_for_each_entry(vma, &msm_obj->vmas, list)
-			seq_printf(m, " [%s: %08llx,%s,inuse=%d]", vma->aspace->name,
+			seq_printf(m, " [%s: %08llx,%s,inuse=%d]",
+				vma->aspace != NULL ? vma->aspace->name : NULL,
 				vma->iova, vma->mapped ? "mapped" : "unmapped",
 				vma->inuse);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/msm/msm_gem_vma.c linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/msm_gem_vma.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/msm/msm_gem_vma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/msm/msm_gem_vma.c	2019-07-28 02:28:39.000000000 -0400
@@ -85,7 +85,7 @@ msm_gem_map_vma(struct msm_gem_address_s
 
 	vma->mapped = true;
 
-	if (aspace->mmu)
+	if (aspace && aspace->mmu)
 		ret = aspace->mmu->funcs->map(aspace->mmu, vma->iova, sgt,
 				size, prot);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/dispnv50/disp.h linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/dispnv50/disp.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/dispnv50/disp.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/dispnv50/disp.h	2019-07-28 02:28:39.000000000 -0400
@@ -41,6 +41,7 @@ struct nv50_disp_interlock {
 		NV50_DISP_INTERLOCK__SIZE
 	} type;
 	u32 data;
+	u32 wimm;
 };
 
 void corec37d_ntfy_init(struct nouveau_bo *, u32);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/dispnv50/head.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/dispnv50/head.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/dispnv50/head.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/dispnv50/head.c	2019-07-28 02:28:39.000000000 -0400
@@ -306,7 +306,7 @@ nv50_head_atomic_check(struct drm_crtc *
 			asyh->set.or = head->func->or != NULL;
 		}
 
-		if (asyh->state.mode_changed)
+		if (asyh->state.mode_changed || asyh->state.connectors_changed)
 			nv50_head_atomic_check_mode(head, asyh);
 
 		if (asyh->state.color_mgmt_changed ||
@@ -413,6 +413,7 @@ nv50_head_atomic_duplicate_state(struct
 	asyh->ovly = armh->ovly;
 	asyh->dither = armh->dither;
 	asyh->procamp = armh->procamp;
+	asyh->or = armh->or;
 	asyh->dp = armh->dp;
 	asyh->clr.mask = 0;
 	asyh->set.mask = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c	2019-07-28 02:28:39.000000000 -0400
@@ -75,6 +75,7 @@ wimmc37b_init_(const struct nv50_wimm_fu
 		return ret;
 	}
 
+	wndw->interlock.wimm = wndw->interlock.data;
 	wndw->immd = func;
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/dispnv50/wndw.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/dispnv50/wndw.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/dispnv50/wndw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/dispnv50/wndw.c	2019-07-28 02:28:39.000000000 -0400
@@ -149,7 +149,7 @@ nv50_wndw_flush_set(struct nv50_wndw *wn
 	if (asyw->set.point) {
 		if (asyw->set.point = false, asyw->set.mask)
 			interlock[wndw->interlock.type] |= wndw->interlock.data;
-		interlock[NV50_DISP_INTERLOCK_WIMM] |= wndw->interlock.data;
+		interlock[NV50_DISP_INTERLOCK_WIMM] |= wndw->interlock.wimm;
 
 		wndw->immd->point(wndw, asyw);
 		wndw->immd->update(wndw, interlock);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h	2019-07-28 02:28:39.000000000 -0400
@@ -38,6 +38,7 @@ struct nvkm_i2c_bus {
 	struct mutex mutex;
 	struct list_head head;
 	struct i2c_adapter i2c;
+	u8 enabled;
 };
 
 int nvkm_i2c_bus_acquire(struct nvkm_i2c_bus *);
@@ -57,6 +58,7 @@ struct nvkm_i2c_aux {
 	struct mutex mutex;
 	struct list_head head;
 	struct i2c_adapter i2c;
+	u8 enabled;
 
 	u32 intr;
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/Kbuild linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/Kbuild
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/Kbuild	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/Kbuild	2019-07-28 02:28:39.000000000 -0400
@@ -1,7 +1,7 @@
-ccflags-y += -I$(src)/include
-ccflags-y += -I$(src)/include/nvkm
-ccflags-y += -I$(src)/nvkm
-ccflags-y += -I$(src)
+ccflags-y += -I $(srctree)/$(src)/include
+ccflags-y += -I $(srctree)/$(src)/include/nvkm
+ccflags-y += -I $(srctree)/$(src)/nvkm
+ccflags-y += -I $(srctree)/$(src)
 
 # NVKM - HW resource manager
 #- code also used by various userspace tools/tests
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/Kconfig linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/Kconfig
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -17,10 +17,21 @@ config DRM_NOUVEAU
 	select INPUT if ACPI && X86
 	select THERMAL if ACPI && X86
 	select ACPI_VIDEO if ACPI && X86
-	select DRM_VM
 	help
 	  Choose this option for open-source NVIDIA support.
 
+config NOUVEAU_LEGACY_CTX_SUPPORT
+	bool "Nouveau legacy context support"
+	depends on DRM_NOUVEAU
+	select DRM_VM
+	default y
+	help
+	  There was a version of the nouveau DDX that relied on legacy
+	  ctx ioctls not erroring out. But that was back in time a long
+	  ways, so offer a way to disable it now. For uapi compat with
+	  old nouveau ddx this should be on by default, but modern distros
+	  should consider turning it off.
+
 config NOUVEAU_PLATFORM_DRIVER
 	bool "Nouveau (NVIDIA) SoC GPUs"
 	depends on DRM_NOUVEAU && ARCH_TEGRA
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c	2019-07-28 02:28:39.000000000 -0400
@@ -1094,8 +1094,11 @@ nouveau_driver_fops = {
 static struct drm_driver
 driver_stub = {
 	.driver_features =
-		DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
-		DRIVER_KMS_LEGACY_CONTEXT,
+		DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER
+#if defined(CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT)
+		| DRIVER_KMS_LEGACY_CONTEXT
+#endif
+		,
 
 	.open = nouveau_drm_open,
 	.postclose = nouveau_drm_postclose,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nouveau_ttm.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nouveau_ttm.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nouveau_ttm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nouveau_ttm.c	2019-07-28 02:28:39.000000000 -0400
@@ -169,7 +169,11 @@ nouveau_ttm_mmap(struct file *filp, stru
 	struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
 
 	if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
+#if defined(CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT)
 		return drm_legacy_mmap(filp, vma);
+#else
+		return -EINVAL;
+#endif
 
 	return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c	2019-07-28 02:28:39.000000000 -0400
@@ -365,8 +365,15 @@ nvkm_dp_train(struct nvkm_dp *dp, u32 da
 	 * and it's better to have a failed modeset than that.
 	 */
 	for (cfg = nvkm_dp_rates; cfg->rate; cfg++) {
-		if (cfg->nr <= outp_nr && cfg->nr <= outp_bw)
-			failsafe = cfg;
+		if (cfg->nr <= outp_nr && cfg->nr <= outp_bw) {
+			/* Try to respect sink limits too when selecting
+			 * lowest link configuration.
+			 */
+			if (!failsafe ||
+			    (cfg->nr <= sink_nr && cfg->bw <= sink_bw))
+				failsafe = cfg;
+		}
+
 		if (failsafe && cfg[1].rate < dataKBps)
 			break;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c	2019-07-28 02:28:39.000000000 -0400
@@ -109,7 +109,7 @@ nv50_bar_oneinit(struct nvkm_bar *base)
 	struct nvkm_device *device = bar->base.subdev.device;
 	static struct lock_class_key bar1_lock;
 	static struct lock_class_key bar2_lock;
-	u64 start, limit;
+	u64 start, limit, size;
 	int ret;
 
 	ret = nvkm_gpuobj_new(device, 0x20000, 0, false, NULL, &bar->mem);
@@ -127,7 +127,10 @@ nv50_bar_oneinit(struct nvkm_bar *base)
 
 	/* BAR2 */
 	start = 0x0100000000ULL;
-	limit = start + device->func->resource_size(device, 3);
+	size = device->func->resource_size(device, 3);
+	if (!size)
+		return -ENOMEM;
+	limit = start + size;
 
 	ret = nvkm_vmm_new(device, start, limit-- - start, NULL, 0,
 			   &bar2_lock, "bar2", &bar->bar2_vmm);
@@ -164,7 +167,10 @@ nv50_bar_oneinit(struct nvkm_bar *base)
 
 	/* BAR1 */
 	start = 0x0000000000ULL;
-	limit = start + device->func->resource_size(device, 1);
+	size = device->func->resource_size(device, 1);
+	if (!size)
+		return -ENOMEM;
+	limit = start + size;
 
 	ret = nvkm_vmm_new(device, start, limit-- - start, NULL, 0,
 			   &bar1_lock, "bar1", &bar->bar1_vmm);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c	2019-07-28 02:28:39.000000000 -0400
@@ -105,9 +105,15 @@ nvkm_i2c_aux_acquire(struct nvkm_i2c_aux
 {
 	struct nvkm_i2c_pad *pad = aux->pad;
 	int ret;
+
 	AUX_TRACE(aux, "acquire");
 	mutex_lock(&aux->mutex);
-	ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX);
+
+	if (aux->enabled)
+		ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX);
+	else
+		ret = -EIO;
+
 	if (ret)
 		mutex_unlock(&aux->mutex);
 	return ret;
@@ -145,6 +151,24 @@ nvkm_i2c_aux_del(struct nvkm_i2c_aux **p
 	}
 }
 
+void
+nvkm_i2c_aux_init(struct nvkm_i2c_aux *aux)
+{
+	AUX_TRACE(aux, "init");
+	mutex_lock(&aux->mutex);
+	aux->enabled = true;
+	mutex_unlock(&aux->mutex);
+}
+
+void
+nvkm_i2c_aux_fini(struct nvkm_i2c_aux *aux)
+{
+	AUX_TRACE(aux, "fini");
+	mutex_lock(&aux->mutex);
+	aux->enabled = false;
+	mutex_unlock(&aux->mutex);
+}
+
 int
 nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *func,
 		  struct nvkm_i2c_pad *pad, int id,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h	2019-07-28 02:28:39.000000000 -0400
@@ -16,6 +16,8 @@ int nvkm_i2c_aux_ctor(const struct nvkm_
 int nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
 		      int id, struct nvkm_i2c_aux **);
 void nvkm_i2c_aux_del(struct nvkm_i2c_aux **);
+void nvkm_i2c_aux_init(struct nvkm_i2c_aux *);
+void nvkm_i2c_aux_fini(struct nvkm_i2c_aux *);
 int nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *, bool retry, u8 type,
 		      u32 addr, u8 *data, u8 *size);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c	2019-07-28 02:28:39.000000000 -0400
@@ -160,8 +160,18 @@ nvkm_i2c_fini(struct nvkm_subdev *subdev
 {
 	struct nvkm_i2c *i2c = nvkm_i2c(subdev);
 	struct nvkm_i2c_pad *pad;
+	struct nvkm_i2c_bus *bus;
+	struct nvkm_i2c_aux *aux;
 	u32 mask;
 
+	list_for_each_entry(aux, &i2c->aux, head) {
+		nvkm_i2c_aux_fini(aux);
+	}
+
+	list_for_each_entry(bus, &i2c->bus, head) {
+		nvkm_i2c_bus_fini(bus);
+	}
+
 	if ((mask = (1 << i2c->func->aux) - 1), i2c->func->aux_stat) {
 		i2c->func->aux_mask(i2c, NVKM_I2C_ANY, mask, 0);
 		i2c->func->aux_stat(i2c, &mask, &mask, &mask, &mask);
@@ -175,11 +185,31 @@ nvkm_i2c_fini(struct nvkm_subdev *subdev
 }
 
 static int
+nvkm_i2c_preinit(struct nvkm_subdev *subdev)
+{
+	struct nvkm_i2c *i2c = nvkm_i2c(subdev);
+	struct nvkm_i2c_bus *bus;
+	struct nvkm_i2c_pad *pad;
+
+	/*
+	 * We init our i2c busses as early as possible, since they may be
+	 * needed by the vbios init scripts on some cards
+	 */
+	list_for_each_entry(pad, &i2c->pad, head)
+		nvkm_i2c_pad_init(pad);
+	list_for_each_entry(bus, &i2c->bus, head)
+		nvkm_i2c_bus_init(bus);
+
+	return 0;
+}
+
+static int
 nvkm_i2c_init(struct nvkm_subdev *subdev)
 {
 	struct nvkm_i2c *i2c = nvkm_i2c(subdev);
 	struct nvkm_i2c_bus *bus;
 	struct nvkm_i2c_pad *pad;
+	struct nvkm_i2c_aux *aux;
 
 	list_for_each_entry(pad, &i2c->pad, head) {
 		nvkm_i2c_pad_init(pad);
@@ -189,6 +219,10 @@ nvkm_i2c_init(struct nvkm_subdev *subdev
 		nvkm_i2c_bus_init(bus);
 	}
 
+	list_for_each_entry(aux, &i2c->aux, head) {
+		nvkm_i2c_aux_init(aux);
+	}
+
 	return 0;
 }
 
@@ -223,6 +257,7 @@ nvkm_i2c_dtor(struct nvkm_subdev *subdev
 static const struct nvkm_subdev_func
 nvkm_i2c = {
 	.dtor = nvkm_i2c_dtor,
+	.preinit = nvkm_i2c_preinit,
 	.init = nvkm_i2c_init,
 	.fini = nvkm_i2c_fini,
 	.intr = nvkm_i2c_intr,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c	2019-07-28 02:28:39.000000000 -0400
@@ -110,6 +110,19 @@ nvkm_i2c_bus_init(struct nvkm_i2c_bus *b
 	BUS_TRACE(bus, "init");
 	if (bus->func->init)
 		bus->func->init(bus);
+
+	mutex_lock(&bus->mutex);
+	bus->enabled = true;
+	mutex_unlock(&bus->mutex);
+}
+
+void
+nvkm_i2c_bus_fini(struct nvkm_i2c_bus *bus)
+{
+	BUS_TRACE(bus, "fini");
+	mutex_lock(&bus->mutex);
+	bus->enabled = false;
+	mutex_unlock(&bus->mutex);
 }
 
 void
@@ -126,9 +139,15 @@ nvkm_i2c_bus_acquire(struct nvkm_i2c_bus
 {
 	struct nvkm_i2c_pad *pad = bus->pad;
 	int ret;
+
 	BUS_TRACE(bus, "acquire");
 	mutex_lock(&bus->mutex);
-	ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_I2C);
+
+	if (bus->enabled)
+		ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_I2C);
+	else
+		ret = -EIO;
+
 	if (ret)
 		mutex_unlock(&bus->mutex);
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h	2019-07-28 02:28:39.000000000 -0400
@@ -18,6 +18,7 @@ int nvkm_i2c_bus_new_(const struct nvkm_
 		      int id, struct nvkm_i2c_bus **);
 void nvkm_i2c_bus_del(struct nvkm_i2c_bus **);
 void nvkm_i2c_bus_init(struct nvkm_i2c_bus *);
+void nvkm_i2c_bus_fini(struct nvkm_i2c_bus *);
 
 int nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *, struct i2c_msg *, int);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/omapdrm/dss/dsi.c linux-libre-5.1.21-gnu/drivers/gpu/drm/omapdrm/dss/dsi.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/omapdrm/dss/dsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/omapdrm/dss/dsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1342,12 +1342,9 @@ static int dsi_pll_enable(struct dss_pll
 	 */
 	dsi_enable_scp_clk(dsi);
 
-	if (!dsi->vdds_dsi_enabled) {
-		r = regulator_enable(dsi->vdds_dsi_reg);
-		if (r)
-			goto err0;
-		dsi->vdds_dsi_enabled = true;
-	}
+	r = regulator_enable(dsi->vdds_dsi_reg);
+	if (r)
+		goto err0;
 
 	/* XXX PLL does not come out of reset without this... */
 	dispc_pck_free_enable(dsi->dss->dispc, 1);
@@ -1372,36 +1369,25 @@ static int dsi_pll_enable(struct dss_pll
 
 	return 0;
 err1:
-	if (dsi->vdds_dsi_enabled) {
-		regulator_disable(dsi->vdds_dsi_reg);
-		dsi->vdds_dsi_enabled = false;
-	}
+	regulator_disable(dsi->vdds_dsi_reg);
 err0:
 	dsi_disable_scp_clk(dsi);
 	dsi_runtime_put(dsi);
 	return r;
 }
 
-static void dsi_pll_uninit(struct dsi_data *dsi, bool disconnect_lanes)
+static void dsi_pll_disable(struct dss_pll *pll)
 {
+	struct dsi_data *dsi = container_of(pll, struct dsi_data, pll);
+
 	dsi_pll_power(dsi, DSI_PLL_POWER_OFF);
-	if (disconnect_lanes) {
-		WARN_ON(!dsi->vdds_dsi_enabled);
-		regulator_disable(dsi->vdds_dsi_reg);
-		dsi->vdds_dsi_enabled = false;
-	}
+
+	regulator_disable(dsi->vdds_dsi_reg);
 
 	dsi_disable_scp_clk(dsi);
 	dsi_runtime_put(dsi);
 
-	DSSDBG("PLL uninit done\n");
-}
-
-static void dsi_pll_disable(struct dss_pll *pll)
-{
-	struct dsi_data *dsi = container_of(pll, struct dsi_data, pll);
-
-	dsi_pll_uninit(dsi, true);
+	DSSDBG("PLL disable done\n");
 }
 
 static int dsi_dump_dsi_clocks(struct seq_file *s, void *p)
@@ -4096,11 +4082,11 @@ static int dsi_display_init_dsi(struct d
 
 	r = dss_pll_enable(&dsi->pll);
 	if (r)
-		goto err0;
+		return r;
 
 	r = dsi_configure_dsi_clocks(dsi);
 	if (r)
-		goto err1;
+		goto err0;
 
 	dss_select_dsi_clk_source(dsi->dss, dsi->module_id,
 				  dsi->module_id == 0 ?
@@ -4108,6 +4094,14 @@ static int dsi_display_init_dsi(struct d
 
 	DSSDBG("PLL OK\n");
 
+	if (!dsi->vdds_dsi_enabled) {
+		r = regulator_enable(dsi->vdds_dsi_reg);
+		if (r)
+			goto err1;
+
+		dsi->vdds_dsi_enabled = true;
+	}
+
 	r = dsi_cio_init(dsi);
 	if (r)
 		goto err2;
@@ -4136,10 +4130,13 @@ static int dsi_display_init_dsi(struct d
 err3:
 	dsi_cio_uninit(dsi);
 err2:
-	dss_select_dsi_clk_source(dsi->dss, dsi->module_id, DSS_CLK_SRC_FCK);
+	regulator_disable(dsi->vdds_dsi_reg);
+	dsi->vdds_dsi_enabled = false;
 err1:
-	dss_pll_disable(&dsi->pll);
+	dss_select_dsi_clk_source(dsi->dss, dsi->module_id, DSS_CLK_SRC_FCK);
 err0:
+	dss_pll_disable(&dsi->pll);
+
 	return r;
 }
 
@@ -4158,7 +4155,12 @@ static void dsi_display_uninit_dsi(struc
 
 	dss_select_dsi_clk_source(dsi->dss, dsi->module_id, DSS_CLK_SRC_FCK);
 	dsi_cio_uninit(dsi);
-	dsi_pll_uninit(dsi, disconnect_lanes);
+	dss_pll_disable(&dsi->pll);
+
+	if (disconnect_lanes) {
+		regulator_disable(dsi->vdds_dsi_reg);
+		dsi->vdds_dsi_enabled = false;
+	}
 }
 
 static int dsi_display_enable(struct omap_dss_device *dssdev)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/omapdrm/omap_connector.c linux-libre-5.1.21-gnu/drivers/gpu/drm/omapdrm/omap_connector.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/omapdrm/omap_connector.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/omapdrm/omap_connector.c	2019-07-28 02:28:39.000000000 -0400
@@ -36,18 +36,22 @@ struct omap_connector {
 };
 
 static void omap_connector_hpd_notify(struct drm_connector *connector,
-				      struct omap_dss_device *src,
 				      enum drm_connector_status status)
 {
-	if (status == connector_status_disconnected) {
-		/*
-		 * If the source is an HDMI encoder, notify it of disconnection.
-		 * This is required to let the HDMI encoder reset any internal
-		 * state related to connection status, such as the CEC address.
-		 */
-		if (src && src->type == OMAP_DISPLAY_TYPE_HDMI &&
-		    src->ops->hdmi.lost_hotplug)
-			src->ops->hdmi.lost_hotplug(src);
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+	struct omap_dss_device *dssdev;
+
+	if (status != connector_status_disconnected)
+		return;
+
+	/*
+	 * Notify all devics in the pipeline of disconnection. This is required
+	 * to let the HDMI encoders reset their internal state related to
+	 * connection status, such as the CEC address.
+	 */
+	for (dssdev = omap_connector->output; dssdev; dssdev = dssdev->next) {
+		if (dssdev->ops && dssdev->ops->hdmi.lost_hotplug)
+			dssdev->ops->hdmi.lost_hotplug(dssdev);
 	}
 }
 
@@ -67,7 +71,7 @@ static void omap_connector_hpd_cb(void *
 	if (old_status == status)
 		return;
 
-	omap_connector_hpd_notify(connector, omap_connector->hpd, status);
+	omap_connector_hpd_notify(connector, status);
 
 	drm_kms_helper_hotplug_event(dev);
 }
@@ -128,7 +132,7 @@ static enum drm_connector_status omap_co
 		       ? connector_status_connected
 		       : connector_status_disconnected;
 
-		omap_connector_hpd_notify(connector, dssdev->src, status);
+		omap_connector_hpd_notify(connector, status);
 	} else {
 		switch (omap_connector->display->type) {
 		case OMAP_DISPLAY_TYPE_DPI:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c linux-libre-5.1.21-gnu/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c	2019-07-28 02:28:39.000000000 -0400
@@ -248,6 +248,9 @@ static int otm8009a_init_sequence(struct
 	/* Send Command GRAM memory write (no parameters) */
 	dcs_write_seq(ctx, MIPI_DCS_WRITE_MEMORY_START);
 
+	/* Wait a short while to let the panel be ready before the 1st frame */
+	mdelay(10);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/pl111/pl111_display.c linux-libre-5.1.21-gnu/drivers/gpu/drm/pl111/pl111_display.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/pl111/pl111_display.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/pl111/pl111_display.c	2019-07-28 02:28:39.000000000 -0400
@@ -531,14 +531,15 @@ pl111_init_clock_divider(struct drm_devi
 		dev_err(drm->dev, "CLCD: unable to get clcdclk.\n");
 		return PTR_ERR(parent);
 	}
+
+	spin_lock_init(&priv->tim2_lock);
+
 	/* If the clock divider is broken, use the parent directly */
 	if (priv->variant->broken_clockdivider) {
 		priv->clk = parent;
 		return 0;
 	}
 	parent_name = __clk_get_name(parent);
-
-	spin_lock_init(&priv->tim2_lock);
 	div->init = &init;
 
 	ret = devm_clk_hw_register(drm->dev, div);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/pl111/pl111_versatile.c linux-libre-5.1.21-gnu/drivers/gpu/drm/pl111/pl111_versatile.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/pl111/pl111_versatile.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/pl111/pl111_versatile.c	2019-07-28 02:28:39.000000000 -0400
@@ -330,6 +330,7 @@ int pl111_versatile_init(struct device *
 		ret = vexpress_muxfpga_init();
 		if (ret) {
 			dev_err(dev, "unable to initialize muxfpga driver\n");
+			of_node_put(np);
 			return ret;
 		}
 
@@ -337,17 +338,20 @@ int pl111_versatile_init(struct device *
 		pdev = of_find_device_by_node(np);
 		if (!pdev) {
 			dev_err(dev, "can't find the sysreg device, deferring\n");
+			of_node_put(np);
 			return -EPROBE_DEFER;
 		}
 		map = dev_get_drvdata(&pdev->dev);
 		if (!map) {
 			dev_err(dev, "sysreg has not yet probed\n");
 			platform_device_put(pdev);
+			of_node_put(np);
 			return -EPROBE_DEFER;
 		}
 	} else {
 		map = syscon_node_to_regmap(np);
 	}
+	of_node_put(np);
 
 	if (IS_ERR(map)) {
 		dev_err(dev, "no Versatile syscon regmap\n");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/radeon/radeon_display.c linux-libre-5.1.21-gnu/drivers/gpu/drm/radeon/radeon_display.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/radeon/radeon_display.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/radeon/radeon_display.c	2019-07-28 02:28:39.000000000 -0400
@@ -922,12 +922,12 @@ static void avivo_get_fb_ref_div(unsigne
 	ref_div_max = max(min(100 / post_div, ref_div_max), 1u);
 
 	/* get matching reference and feedback divider */
-	*ref_div = min(max(DIV_ROUND_CLOSEST(den, post_div), 1u), ref_div_max);
+	*ref_div = min(max(den/post_div, 1u), ref_div_max);
 	*fb_div = DIV_ROUND_CLOSEST(nom * *ref_div * post_div, den);
 
 	/* limit fb divider to its maximum */
 	if (*fb_div > fb_div_max) {
-		*ref_div = DIV_ROUND_CLOSEST(*ref_div * fb_div_max, *fb_div);
+		*ref_div = (*ref_div * fb_div_max)/(*fb_div);
 		*fb_div = fb_div_max;
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/rcar-du/rcar_lvds.c linux-libre-5.1.21-gnu/drivers/gpu/drm/rcar-du/rcar_lvds.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/rcar-du/rcar_lvds.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/rcar-du/rcar_lvds.c	2019-07-28 02:28:39.000000000 -0400
@@ -283,7 +283,7 @@ static void rcar_lvds_d3_e3_pll_calc(str
 				 * divider.
 				 */
 				fout = fvco / (1 << e) / div7;
-				div = DIV_ROUND_CLOSEST(fout, target);
+				div = max(1UL, DIV_ROUND_CLOSEST(fout, target));
 				diff = abs(fout / div - target);
 
 				if (diff < pll->diff) {
@@ -485,9 +485,13 @@ static void rcar_lvds_enable(struct drm_
 	}
 
 	if (lvds->info->quirks & RCAR_LVDS_QUIRK_GEN3_LVEN) {
-		/* Turn on the LVDS PHY. */
+		/*
+		 * Turn on the LVDS PHY. On D3, the LVEN and LVRES bit must be
+		 * set at the same time, so don't write the register yet.
+		 */
 		lvdcr0 |= LVDCR0_LVEN;
-		rcar_lvds_write(lvds, LVDCR0, lvdcr0);
+		if (!(lvds->info->quirks & RCAR_LVDS_QUIRK_PWD))
+			rcar_lvds_write(lvds, LVDCR0, lvdcr0);
 	}
 
 	if (!(lvds->info->quirks & RCAR_LVDS_QUIRK_EXT_PLL)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/rockchip/rockchip_drm_drv.c linux-libre-5.1.21-gnu/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/rockchip/rockchip_drm_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/rockchip/rockchip_drm_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -448,6 +448,14 @@ static int rockchip_drm_platform_remove(
 	return 0;
 }
 
+static void rockchip_drm_platform_shutdown(struct platform_device *pdev)
+{
+	struct drm_device *drm = platform_get_drvdata(pdev);
+
+	if (drm)
+		drm_atomic_helper_shutdown(drm);
+}
+
 static const struct of_device_id rockchip_drm_dt_ids[] = {
 	{ .compatible = "rockchip,display-subsystem", },
 	{ /* sentinel */ },
@@ -457,6 +465,7 @@ MODULE_DEVICE_TABLE(of, rockchip_drm_dt_
 static struct platform_driver rockchip_drm_platform_driver = {
 	.probe = rockchip_drm_platform_probe,
 	.remove = rockchip_drm_platform_remove,
+	.shutdown = rockchip_drm_platform_shutdown,
 	.driver = {
 		.name = "rockchip-drm",
 		.of_match_table = rockchip_drm_dt_ids,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/rockchip/rockchip_drm_vop.c linux-libre-5.1.21-gnu/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/rockchip/rockchip_drm_vop.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/rockchip/rockchip_drm_vop.c	2019-07-28 02:28:39.000000000 -0400
@@ -924,29 +924,17 @@ static void vop_plane_atomic_async_updat
 					  struct drm_plane_state *new_state)
 {
 	struct vop *vop = to_vop(plane->state->crtc);
-	struct drm_plane_state *plane_state;
-
-	plane_state = plane->funcs->atomic_duplicate_state(plane);
-	plane_state->crtc_x = new_state->crtc_x;
-	plane_state->crtc_y = new_state->crtc_y;
-	plane_state->crtc_h = new_state->crtc_h;
-	plane_state->crtc_w = new_state->crtc_w;
-	plane_state->src_x = new_state->src_x;
-	plane_state->src_y = new_state->src_y;
-	plane_state->src_h = new_state->src_h;
-	plane_state->src_w = new_state->src_w;
-
-	if (plane_state->fb != new_state->fb)
-		drm_atomic_set_fb_for_plane(plane_state, new_state->fb);
-
-	swap(plane_state, plane->state);
+	struct drm_framebuffer *old_fb = plane->state->fb;
 
-	if (plane->state->fb && plane->state->fb != new_state->fb) {
-		drm_framebuffer_get(plane->state->fb);
-		WARN_ON(drm_crtc_vblank_get(plane->state->crtc) != 0);
-		drm_flip_work_queue(&vop->fb_unref_work, plane->state->fb);
-		set_bit(VOP_PENDING_FB_UNREF, &vop->pending);
-	}
+	plane->state->crtc_x = new_state->crtc_x;
+	plane->state->crtc_y = new_state->crtc_y;
+	plane->state->crtc_h = new_state->crtc_h;
+	plane->state->crtc_w = new_state->crtc_w;
+	plane->state->src_x = new_state->src_x;
+	plane->state->src_y = new_state->src_y;
+	plane->state->src_h = new_state->src_h;
+	plane->state->src_w = new_state->src_w;
+	swap(plane->state->fb, new_state->fb);
 
 	if (vop->is_enabled) {
 		rockchip_drm_psr_inhibit_get_state(new_state->state);
@@ -955,9 +943,22 @@ static void vop_plane_atomic_async_updat
 		vop_cfg_done(vop);
 		spin_unlock(&vop->reg_lock);
 		rockchip_drm_psr_inhibit_put_state(new_state->state);
-	}
 
-	plane->funcs->atomic_destroy_state(plane, plane_state);
+		/*
+		 * A scanout can still be occurring, so we can't drop the
+		 * reference to the old framebuffer. To solve this we get a
+		 * reference to old_fb and set a worker to release it later.
+		 * FIXME: if we perform 500 async_update calls before the
+		 * vblank, then we can have 500 different framebuffers waiting
+		 * to be released.
+		 */
+		if (old_fb && plane->state->fb != old_fb) {
+			drm_framebuffer_get(old_fb);
+			WARN_ON(drm_crtc_vblank_get(plane->state->crtc) != 0);
+			drm_flip_work_queue(&vop->fb_unref_work, old_fb);
+			set_bit(VOP_PENDING_FB_UNREF, &vop->pending);
+		}
+	}
 }
 
 static const struct drm_plane_helper_funcs plane_helper_funcs = {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.c linux-libre-5.1.21-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.c	2019-07-28 02:28:39.000000000 -0400
@@ -341,8 +341,8 @@ static void sun4i_tcon0_mode_set_cpu(str
 	u32 block_space, start_delay;
 	u32 tcon_div;
 
-	tcon->dclk_min_div = 4;
-	tcon->dclk_max_div = 127;
+	tcon->dclk_min_div = SUN6I_DSI_TCON_DIV;
+	tcon->dclk_max_div = SUN6I_DSI_TCON_DIV;
 
 	sun4i_tcon0_mode_set_common(tcon, mode);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c linux-libre-5.1.21-gnu/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -358,7 +358,13 @@ static void sun6i_dsi_inst_init(struct s
 static u16 sun6i_dsi_get_video_start_delay(struct sun6i_dsi *dsi,
 					   struct drm_display_mode *mode)
 {
-	return mode->vtotal - (mode->vsync_end - mode->vdisplay) + 1;
+	u16 start = clamp(mode->vtotal - mode->vdisplay - 10, 8, 100);
+	u16 delay = mode->vtotal - (mode->vsync_end - mode->vdisplay) + start;
+
+	if (delay > mode->vtotal)
+		delay = delay % mode->vtotal;
+
+	return max_t(u16, delay, 1);
 }
 
 static void sun6i_dsi_setup_burst(struct sun6i_dsi *dsi,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h linux-libre-5.1.21-gnu/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h	2019-07-28 02:28:39.000000000 -0400
@@ -13,6 +13,8 @@
 #include <drm/drm_encoder.h>
 #include <drm/drm_mipi_dsi.h>
 
+#define SUN6I_DSI_TCON_DIV	4
+
 struct sun6i_dsi {
 	struct drm_connector	connector;
 	struct drm_encoder	encoder;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c linux-libre-5.1.21-gnu/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c	2019-07-28 02:28:39.000000000 -0400
@@ -293,7 +293,8 @@ static int sun8i_hdmi_phy_config_h3(stru
 				 SUN8I_HDMI_PHY_ANA_CFG2_REG_BIGSW |
 				 SUN8I_HDMI_PHY_ANA_CFG2_REG_SLV(4);
 		ana_cfg3_init |= SUN8I_HDMI_PHY_ANA_CFG3_REG_AMPCK(9) |
-				 SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(13);
+				 SUN8I_HDMI_PHY_ANA_CFG3_REG_AMP(13) |
+				 SUN8I_HDMI_PHY_ANA_CFG3_REG_EMP(3);
 	}
 
 	regmap_update_bits(phy->regs, SUN8I_HDMI_PHY_ANA_CFG1_REG,
@@ -672,22 +673,13 @@ int sun8i_hdmi_phy_probe(struct sun8i_dw
 				goto err_put_clk_pll0;
 			}
 		}
-
-		ret = sun8i_phy_clk_create(phy, dev,
-					   phy->variant->has_second_pll);
-		if (ret) {
-			dev_err(dev, "Couldn't create the PHY clock\n");
-			goto err_put_clk_pll1;
-		}
-
-		clk_prepare_enable(phy->clk_phy);
 	}
 
 	phy->rst_phy = of_reset_control_get_shared(node, "phy");
 	if (IS_ERR(phy->rst_phy)) {
 		dev_err(dev, "Could not get phy reset control\n");
 		ret = PTR_ERR(phy->rst_phy);
-		goto err_disable_clk_phy;
+		goto err_put_clk_pll1;
 	}
 
 	ret = reset_control_deassert(phy->rst_phy);
@@ -708,18 +700,29 @@ int sun8i_hdmi_phy_probe(struct sun8i_dw
 		goto err_disable_clk_bus;
 	}
 
+	if (phy->variant->has_phy_clk) {
+		ret = sun8i_phy_clk_create(phy, dev,
+					   phy->variant->has_second_pll);
+		if (ret) {
+			dev_err(dev, "Couldn't create the PHY clock\n");
+			goto err_disable_clk_mod;
+		}
+
+		clk_prepare_enable(phy->clk_phy);
+	}
+
 	hdmi->phy = phy;
 
 	return 0;
 
+err_disable_clk_mod:
+	clk_disable_unprepare(phy->clk_mod);
 err_disable_clk_bus:
 	clk_disable_unprepare(phy->clk_bus);
 err_deassert_rst_phy:
 	reset_control_assert(phy->rst_phy);
 err_put_rst_phy:
 	reset_control_put(phy->rst_phy);
-err_disable_clk_phy:
-	clk_disable_unprepare(phy->clk_phy);
 err_put_clk_pll1:
 	clk_put(phy->clk_pll1);
 err_put_clk_pll0:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/tegra/gem.c linux-libre-5.1.21-gnu/drivers/gpu/drm/tegra/gem.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/tegra/gem.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/tegra/gem.c	2019-07-28 02:28:39.000000000 -0400
@@ -204,7 +204,7 @@ static void tegra_bo_free(struct drm_dev
 {
 	if (bo->pages) {
 		dma_unmap_sg(drm->dev, bo->sgt->sgl, bo->sgt->nents,
-			     DMA_BIDIRECTIONAL);
+			     DMA_FROM_DEVICE);
 		drm_gem_put_pages(&bo->gem, bo->pages, true, true);
 		sg_free_table(bo->sgt);
 		kfree(bo->sgt);
@@ -230,7 +230,7 @@ static int tegra_bo_get_pages(struct drm
 	}
 
 	err = dma_map_sg(drm->dev, bo->sgt->sgl, bo->sgt->nents,
-			 DMA_BIDIRECTIONAL);
+			 DMA_FROM_DEVICE);
 	if (err == 0) {
 		err = -EFAULT;
 		goto free_sgt;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/tinydrm/ili9225.c linux-libre-5.1.21-gnu/drivers/gpu/drm/tinydrm/ili9225.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/tinydrm/ili9225.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/tinydrm/ili9225.c	2019-07-28 02:28:39.000000000 -0400
@@ -301,7 +301,7 @@ static void ili9225_pipe_disable(struct
 	mipi->enabled = false;
 }
 
-static int ili9225_dbi_command(struct mipi_dbi *mipi, u8 cmd, u8 *par,
+static int ili9225_dbi_command(struct mipi_dbi *mipi, u8 *cmd, u8 *par,
 			       size_t num)
 {
 	struct spi_device *spi = mipi->spi;
@@ -311,11 +311,11 @@ static int ili9225_dbi_command(struct mi
 
 	gpiod_set_value_cansleep(mipi->dc, 0);
 	speed_hz = mipi_dbi_spi_cmd_max_speed(spi, 1);
-	ret = tinydrm_spi_transfer(spi, speed_hz, NULL, 8, &cmd, 1);
+	ret = tinydrm_spi_transfer(spi, speed_hz, NULL, 8, cmd, 1);
 	if (ret || !num)
 		return ret;
 
-	if (cmd == ILI9225_WRITE_DATA_TO_GRAM && !mipi->swap_bytes)
+	if (*cmd == ILI9225_WRITE_DATA_TO_GRAM && !mipi->swap_bytes)
 		bpw = 16;
 
 	gpiod_set_value_cansleep(mipi->dc, 1);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/tinydrm/mipi-dbi.c linux-libre-5.1.21-gnu/drivers/gpu/drm/tinydrm/mipi-dbi.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/tinydrm/mipi-dbi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/tinydrm/mipi-dbi.c	2019-07-28 02:28:39.000000000 -0400
@@ -153,16 +153,42 @@ EXPORT_SYMBOL(mipi_dbi_command_read);
  */
 int mipi_dbi_command_buf(struct mipi_dbi *mipi, u8 cmd, u8 *data, size_t len)
 {
+	u8 *cmdbuf;
 	int ret;
 
+	/* SPI requires dma-safe buffers */
+	cmdbuf = kmemdup(&cmd, 1, GFP_KERNEL);
+	if (!cmdbuf)
+		return -ENOMEM;
+
 	mutex_lock(&mipi->cmdlock);
-	ret = mipi->command(mipi, cmd, data, len);
+	ret = mipi->command(mipi, cmdbuf, data, len);
 	mutex_unlock(&mipi->cmdlock);
 
+	kfree(cmdbuf);
+
 	return ret;
 }
 EXPORT_SYMBOL(mipi_dbi_command_buf);
 
+/* This should only be used by mipi_dbi_command() */
+int mipi_dbi_command_stackbuf(struct mipi_dbi *mipi, u8 cmd, u8 *data, size_t len)
+{
+	u8 *buf;
+	int ret;
+
+	buf = kmemdup(data, len, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = mipi_dbi_command_buf(mipi, cmd, buf, len);
+
+	kfree(buf);
+
+	return ret;
+}
+EXPORT_SYMBOL(mipi_dbi_command_stackbuf);
+
 /**
  * mipi_dbi_buf_copy - Copy a framebuffer, transforming it if necessary
  * @dst: The destination buffer
@@ -774,18 +800,18 @@ static int mipi_dbi_spi1_transfer(struct
 	return 0;
 }
 
-static int mipi_dbi_typec1_command(struct mipi_dbi *mipi, u8 cmd,
+static int mipi_dbi_typec1_command(struct mipi_dbi *mipi, u8 *cmd,
 				   u8 *parameters, size_t num)
 {
-	unsigned int bpw = (cmd == MIPI_DCS_WRITE_MEMORY_START) ? 16 : 8;
+	unsigned int bpw = (*cmd == MIPI_DCS_WRITE_MEMORY_START) ? 16 : 8;
 	int ret;
 
-	if (mipi_dbi_command_is_read(mipi, cmd))
+	if (mipi_dbi_command_is_read(mipi, *cmd))
 		return -ENOTSUPP;
 
-	MIPI_DBI_DEBUG_COMMAND(cmd, parameters, num);
+	MIPI_DBI_DEBUG_COMMAND(*cmd, parameters, num);
 
-	ret = mipi_dbi_spi1_transfer(mipi, 0, &cmd, 1, 8);
+	ret = mipi_dbi_spi1_transfer(mipi, 0, cmd, 1, 8);
 	if (ret || !num)
 		return ret;
 
@@ -794,7 +820,7 @@ static int mipi_dbi_typec1_command(struc
 
 /* MIPI DBI Type C Option 3 */
 
-static int mipi_dbi_typec3_command_read(struct mipi_dbi *mipi, u8 cmd,
+static int mipi_dbi_typec3_command_read(struct mipi_dbi *mipi, u8 *cmd,
 					u8 *data, size_t len)
 {
 	struct spi_device *spi = mipi->spi;
@@ -803,7 +829,7 @@ static int mipi_dbi_typec3_command_read(
 	struct spi_transfer tr[2] = {
 		{
 			.speed_hz = speed_hz,
-			.tx_buf = &cmd,
+			.tx_buf = cmd,
 			.len = 1,
 		}, {
 			.speed_hz = speed_hz,
@@ -821,8 +847,8 @@ static int mipi_dbi_typec3_command_read(
 	 * Support non-standard 24-bit and 32-bit Nokia read commands which
 	 * start with a dummy clock, so we need to read an extra byte.
 	 */
-	if (cmd == MIPI_DCS_GET_DISPLAY_ID ||
-	    cmd == MIPI_DCS_GET_DISPLAY_STATUS) {
+	if (*cmd == MIPI_DCS_GET_DISPLAY_ID ||
+	    *cmd == MIPI_DCS_GET_DISPLAY_STATUS) {
 		if (!(len == 3 || len == 4))
 			return -EINVAL;
 
@@ -852,7 +878,7 @@ static int mipi_dbi_typec3_command_read(
 			data[i] = (buf[i] << 1) | !!(buf[i + 1] & BIT(7));
 	}
 
-	MIPI_DBI_DEBUG_COMMAND(cmd, data, len);
+	MIPI_DBI_DEBUG_COMMAND(*cmd, data, len);
 
 err_free:
 	kfree(buf);
@@ -860,7 +886,7 @@ err_free:
 	return ret;
 }
 
-static int mipi_dbi_typec3_command(struct mipi_dbi *mipi, u8 cmd,
+static int mipi_dbi_typec3_command(struct mipi_dbi *mipi, u8 *cmd,
 				   u8 *par, size_t num)
 {
 	struct spi_device *spi = mipi->spi;
@@ -868,18 +894,18 @@ static int mipi_dbi_typec3_command(struc
 	u32 speed_hz;
 	int ret;
 
-	if (mipi_dbi_command_is_read(mipi, cmd))
+	if (mipi_dbi_command_is_read(mipi, *cmd))
 		return mipi_dbi_typec3_command_read(mipi, cmd, par, num);
 
-	MIPI_DBI_DEBUG_COMMAND(cmd, par, num);
+	MIPI_DBI_DEBUG_COMMAND(*cmd, par, num);
 
 	gpiod_set_value_cansleep(mipi->dc, 0);
 	speed_hz = mipi_dbi_spi_cmd_max_speed(spi, 1);
-	ret = tinydrm_spi_transfer(spi, speed_hz, NULL, 8, &cmd, 1);
+	ret = tinydrm_spi_transfer(spi, speed_hz, NULL, 8, cmd, 1);
 	if (ret || !num)
 		return ret;
 
-	if (cmd == MIPI_DCS_WRITE_MEMORY_START && !mipi->swap_bytes)
+	if (*cmd == MIPI_DCS_WRITE_MEMORY_START && !mipi->swap_bytes)
 		bpw = 16;
 
 	gpiod_set_value_cansleep(mipi->dc, 1);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/v3d/v3d_drv.c linux-libre-5.1.21-gnu/drivers/gpu/drm/v3d/v3d_drv.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/v3d/v3d_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/v3d/v3d_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -312,14 +312,18 @@ static int v3d_platform_drm_probe(struct
 	if (ret)
 		goto dev_destroy;
 
-	v3d_irq_init(v3d);
+	ret = v3d_irq_init(v3d);
+	if (ret)
+		goto gem_destroy;
 
 	ret = drm_dev_register(drm, 0);
 	if (ret)
-		goto gem_destroy;
+		goto irq_disable;
 
 	return 0;
 
+irq_disable:
+	v3d_irq_disable(v3d);
 gem_destroy:
 	v3d_gem_destroy(drm);
 dev_destroy:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/v3d/v3d_drv.h linux-libre-5.1.21-gnu/drivers/gpu/drm/v3d/v3d_drv.h
--- linux-libre-5.1-gnu/drivers/gpu/drm/v3d/v3d_drv.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/v3d/v3d_drv.h	2019-07-28 02:28:39.000000000 -0400
@@ -310,7 +310,7 @@ void v3d_reset(struct v3d_dev *v3d);
 void v3d_invalidate_caches(struct v3d_dev *v3d);
 
 /* v3d_irq.c */
-void v3d_irq_init(struct v3d_dev *v3d);
+int v3d_irq_init(struct v3d_dev *v3d);
 void v3d_irq_enable(struct v3d_dev *v3d);
 void v3d_irq_disable(struct v3d_dev *v3d);
 void v3d_irq_reset(struct v3d_dev *v3d);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/v3d/v3d_irq.c linux-libre-5.1.21-gnu/drivers/gpu/drm/v3d/v3d_irq.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/v3d/v3d_irq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/v3d/v3d_irq.c	2019-07-28 02:28:39.000000000 -0400
@@ -156,7 +156,7 @@ v3d_hub_irq(int irq, void *arg)
 	return status;
 }
 
-void
+int
 v3d_irq_init(struct v3d_dev *v3d)
 {
 	int ret, core;
@@ -173,13 +173,22 @@ v3d_irq_init(struct v3d_dev *v3d)
 	ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 0),
 			       v3d_hub_irq, IRQF_SHARED,
 			       "v3d_hub", v3d);
+	if (ret)
+		goto fail;
+
 	ret = devm_request_irq(v3d->dev, platform_get_irq(v3d->pdev, 1),
 			       v3d_irq, IRQF_SHARED,
 			       "v3d_core0", v3d);
 	if (ret)
-		dev_err(v3d->dev, "IRQ setup failed: %d\n", ret);
+		goto fail;
 
 	v3d_irq_enable(v3d);
+	return 0;
+
+fail:
+	if (ret != -EPROBE_DEFER)
+		dev_err(v3d->dev, "IRQ setup failed: %d\n", ret);
+	return ret;
 }
 
 void
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/vc4/vc4_plane.c linux-libre-5.1.21-gnu/drivers/gpu/drm/vc4/vc4_plane.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/vc4/vc4_plane.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/vc4/vc4_plane.c	2019-07-28 02:28:39.000000000 -0400
@@ -968,7 +968,7 @@ static void vc4_plane_atomic_async_updat
 {
 	struct vc4_plane_state *vc4_state, *new_vc4_state;
 
-	drm_atomic_set_fb_for_plane(plane->state, state->fb);
+	swap(plane->state->fb, state->fb);
 	plane->state->crtc_x = state->crtc_x;
 	plane->state->crtc_y = state->crtc_y;
 	plane->state->crtc_w = state->crtc_w;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/virtio/virtgpu_vq.c linux-libre-5.1.21-gnu/drivers/gpu/drm/virtio/virtgpu_vq.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/virtio/virtgpu_vq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/virtio/virtgpu_vq.c	2019-07-28 02:28:39.000000000 -0400
@@ -620,11 +620,11 @@ static void virtio_gpu_cmd_get_edid_cb(s
 	output = vgdev->outputs + scanout;
 
 	new_edid = drm_do_get_edid(&output->conn, virtio_get_edid_block, resp);
+	drm_connector_update_edid_property(&output->conn, new_edid);
 
 	spin_lock(&vgdev->display_info_lock);
 	old_edid = output->edid;
 	output->edid = new_edid;
-	drm_connector_update_edid_property(&output->conn, output->edid);
 	spin_unlock(&vgdev->display_info_lock);
 
 	kfree(old_edid);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/ttm_object.c linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/ttm_object.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/ttm_object.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/ttm_object.c	2019-07-28 02:28:39.000000000 -0400
@@ -174,7 +174,7 @@ int ttm_base_object_init(struct ttm_obje
 	kref_init(&base->refcount);
 	idr_preload(GFP_KERNEL);
 	spin_lock(&tdev->object_lock);
-	ret = idr_alloc(&tdev->idr, base, 0, 0, GFP_NOWAIT);
+	ret = idr_alloc(&tdev->idr, base, 1, 0, GFP_NOWAIT);
 	spin_unlock(&tdev->object_lock);
 	idr_preload_end();
 	if (ret < 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -747,6 +747,9 @@ static int vmw_driver_load(struct drm_de
 	if (unlikely(ret != 0))
 		goto out_err0;
 
+	dma_set_max_seg_size(dev->dev, min_t(unsigned int, U32_MAX & PAGE_MASK,
+					     SCATTERLIST_MAX_SEGMENT));
+
 	if (dev_priv->capabilities & SVGA_CAP_GMR2) {
 		DRM_INFO("Max GMR ids is %u\n",
 			 (unsigned)dev_priv->max_gmr_ids);
@@ -1240,7 +1243,13 @@ static int vmw_master_set(struct drm_dev
 	}
 
 	dev_priv->active_master = vmaster;
-	drm_sysfs_hotplug_event(dev);
+
+	/*
+	 * Inform a new master that the layout may have changed while
+	 * it was gone.
+	 */
+	if (!from_open)
+		drm_sysfs_hotplug_event(dev);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c	2019-07-28 02:28:39.000000000 -0400
@@ -2129,6 +2129,11 @@ static int vmw_cmd_set_shader(struct vmw
 		return 0;
 
 	if (cmd->body.shid != SVGA3D_INVALID_ID) {
+		/*
+		 * This is the compat shader path - Per device guest-backed
+		 * shaders, but user-space thinks it's per context host-
+		 * backed shaders.
+		 */
 		res = vmw_shader_lookup(vmw_context_res_man(ctx),
 					cmd->body.shid,
 					cmd->body.type);
@@ -2137,6 +2142,14 @@ static int vmw_cmd_set_shader(struct vmw
 			ret = vmw_execbuf_res_noctx_val_add(sw_context, res);
 			if (unlikely(ret != 0))
 				return ret;
+
+			ret = vmw_resource_relocation_add
+				(sw_context, res,
+				 vmw_ptr_diff(sw_context->buf_start,
+					      &cmd->body.shid),
+				 vmw_res_rel_normal);
+			if (unlikely(ret != 0))
+				return ret;
 		}
 	}
 
@@ -2338,7 +2351,8 @@ static int vmw_cmd_dx_set_shader(struct
 
 	cmd = container_of(header, typeof(*cmd), header);
 
-	if (cmd->body.type >= SVGA3D_SHADERTYPE_DX10_MAX) {
+	if (cmd->body.type >= SVGA3D_SHADERTYPE_DX10_MAX ||
+	    cmd->body.type < SVGA3D_SHADERTYPE_MIN) {
 		DRM_ERROR("Illegal shader type %u.\n",
 			  (unsigned) cmd->body.type);
 		return -EINVAL;
@@ -2574,6 +2588,10 @@ static int vmw_cmd_dx_view_define(struct
 	if (view_type == vmw_view_max)
 		return -EINVAL;
 	cmd = container_of(header, typeof(*cmd), header);
+	if (unlikely(cmd->sid == SVGA3D_INVALID_ID)) {
+		DRM_ERROR("Invalid surface id.\n");
+		return -EINVAL;
+	}
 	ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 				user_surface_converter,
 				&cmd->sid, &srf);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c	2019-07-28 02:28:39.000000000 -0400
@@ -136,6 +136,114 @@ static int vmw_close_channel(struct rpc_
 	return 0;
 }
 
+/**
+ * vmw_port_hb_out - Send the message payload either through the
+ * high-bandwidth port if available, or through the backdoor otherwise.
+ * @channel: The rpc channel.
+ * @msg: NULL-terminated message.
+ * @hb: Whether the high-bandwidth port is available.
+ *
+ * Return: The port status.
+ */
+static unsigned long vmw_port_hb_out(struct rpc_channel *channel,
+				     const char *msg, bool hb)
+{
+	unsigned long si, di, eax, ebx, ecx, edx;
+	unsigned long msg_len = strlen(msg);
+
+	if (hb) {
+		unsigned long bp = channel->cookie_high;
+
+		si = (uintptr_t) msg;
+		di = channel->cookie_low;
+
+		VMW_PORT_HB_OUT(
+			(MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
+			msg_len, si, di,
+			VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
+			VMW_HYPERVISOR_MAGIC, bp,
+			eax, ebx, ecx, edx, si, di);
+
+		return ebx;
+	}
+
+	/* HB port not available. Send the message 4 bytes at a time. */
+	ecx = MESSAGE_STATUS_SUCCESS << 16;
+	while (msg_len && (HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS)) {
+		unsigned int bytes = min_t(size_t, msg_len, 4);
+		unsigned long word = 0;
+
+		memcpy(&word, msg, bytes);
+		msg_len -= bytes;
+		msg += bytes;
+		si = channel->cookie_high;
+		di = channel->cookie_low;
+
+		VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_SENDPAYLOAD << 16),
+			 word, si, di,
+			 VMW_HYPERVISOR_PORT | (channel->channel_id << 16),
+			 VMW_HYPERVISOR_MAGIC,
+			 eax, ebx, ecx, edx, si, di);
+	}
+
+	return ecx;
+}
+
+/**
+ * vmw_port_hb_in - Receive the message payload either through the
+ * high-bandwidth port if available, or through the backdoor otherwise.
+ * @channel: The rpc channel.
+ * @reply: Pointer to buffer holding reply.
+ * @reply_len: Length of the reply.
+ * @hb: Whether the high-bandwidth port is available.
+ *
+ * Return: The port status.
+ */
+static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply,
+				    unsigned long reply_len, bool hb)
+{
+	unsigned long si, di, eax, ebx, ecx, edx;
+
+	if (hb) {
+		unsigned long bp = channel->cookie_low;
+
+		si = channel->cookie_high;
+		di = (uintptr_t) reply;
+
+		VMW_PORT_HB_IN(
+			(MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
+			reply_len, si, di,
+			VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
+			VMW_HYPERVISOR_MAGIC, bp,
+			eax, ebx, ecx, edx, si, di);
+
+		return ebx;
+	}
+
+	/* HB port not available. Retrieve the message 4 bytes at a time. */
+	ecx = MESSAGE_STATUS_SUCCESS << 16;
+	while (reply_len) {
+		unsigned int bytes = min_t(unsigned long, reply_len, 4);
+
+		si = channel->cookie_high;
+		di = channel->cookie_low;
+
+		VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_RECVPAYLOAD << 16),
+			 MESSAGE_STATUS_SUCCESS, si, di,
+			 VMW_HYPERVISOR_PORT | (channel->channel_id << 16),
+			 VMW_HYPERVISOR_MAGIC,
+			 eax, ebx, ecx, edx, si, di);
+
+		if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0)
+			break;
+
+		memcpy(reply, &ebx, bytes);
+		reply_len -= bytes;
+		reply += bytes;
+	}
+
+	return ecx;
+}
 
 
 /**
@@ -148,11 +256,10 @@ static int vmw_close_channel(struct rpc_
  */
 static int vmw_send_msg(struct rpc_channel *channel, const char *msg)
 {
-	unsigned long eax, ebx, ecx, edx, si, di, bp;
+	unsigned long eax, ebx, ecx, edx, si, di;
 	size_t msg_len = strlen(msg);
 	int retries = 0;
 
-
 	while (retries < RETRIES) {
 		retries++;
 
@@ -166,23 +273,14 @@ static int vmw_send_msg(struct rpc_chann
 			VMW_HYPERVISOR_MAGIC,
 			eax, ebx, ecx, edx, si, di);
 
-		if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0 ||
-		    (HIGH_WORD(ecx) & MESSAGE_STATUS_HB) == 0) {
-			/* Expected success + high-bandwidth. Give up. */
+		if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) {
+			/* Expected success. Give up. */
 			return -EINVAL;
 		}
 
 		/* Send msg */
-		si  = (uintptr_t) msg;
-		di  = channel->cookie_low;
-		bp  = channel->cookie_high;
-
-		VMW_PORT_HB_OUT(
-			(MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
-			msg_len, si, di,
-			VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
-			VMW_HYPERVISOR_MAGIC, bp,
-			eax, ebx, ecx, edx, si, di);
+		ebx = vmw_port_hb_out(channel, msg,
+				      !!(HIGH_WORD(ecx) & MESSAGE_STATUS_HB));
 
 		if ((HIGH_WORD(ebx) & MESSAGE_STATUS_SUCCESS) != 0) {
 			return 0;
@@ -211,7 +309,7 @@ STACK_FRAME_NON_STANDARD(vmw_send_msg);
 static int vmw_recv_msg(struct rpc_channel *channel, void **msg,
 			size_t *msg_len)
 {
-	unsigned long eax, ebx, ecx, edx, si, di, bp;
+	unsigned long eax, ebx, ecx, edx, si, di;
 	char *reply;
 	size_t reply_len;
 	int retries = 0;
@@ -233,8 +331,7 @@ static int vmw_recv_msg(struct rpc_chann
 			VMW_HYPERVISOR_MAGIC,
 			eax, ebx, ecx, edx, si, di);
 
-		if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0 ||
-		    (HIGH_WORD(ecx) & MESSAGE_STATUS_HB) == 0) {
+		if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) {
 			DRM_ERROR("Failed to get reply size for host message.\n");
 			return -EINVAL;
 		}
@@ -252,17 +349,8 @@ static int vmw_recv_msg(struct rpc_chann
 
 
 		/* Receive buffer */
-		si  = channel->cookie_high;
-		di  = (uintptr_t) reply;
-		bp  = channel->cookie_low;
-
-		VMW_PORT_HB_IN(
-			(MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG,
-			reply_len, si, di,
-			VMW_HYPERVISOR_HB_PORT | (channel->channel_id << 16),
-			VMW_HYPERVISOR_MAGIC, bp,
-			eax, ebx, ecx, edx, si, di);
-
+		ebx = vmw_port_hb_in(channel, reply, reply_len,
+				     !!(HIGH_WORD(ecx) & MESSAGE_STATUS_HB));
 		if ((HIGH_WORD(ebx) & MESSAGE_STATUS_SUCCESS) == 0) {
 			kfree(reply);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
--- linux-libre-5.1-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c	2019-07-28 02:28:39.000000000 -0400
@@ -454,11 +454,11 @@ static int vmw_ttm_map_dma(struct vmw_tt
 		if (unlikely(ret != 0))
 			return ret;
 
-		ret = sg_alloc_table_from_pages(&vmw_tt->sgt, vsgt->pages,
-						vsgt->num_pages, 0,
-						(unsigned long)
-						vsgt->num_pages << PAGE_SHIFT,
-						GFP_KERNEL);
+		ret = __sg_alloc_table_from_pages
+			(&vmw_tt->sgt, vsgt->pages, vsgt->num_pages, 0,
+			 (unsigned long) vsgt->num_pages << PAGE_SHIFT,
+			 dma_get_max_seg_size(dev_priv->dev->dev),
+			 GFP_KERNEL);
 		if (unlikely(ret != 0))
 			goto out_sg_alloc_fail;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/ipu-v3/ipu-ic.c linux-libre-5.1.21-gnu/drivers/gpu/ipu-v3/ipu-ic.c
--- linux-libre-5.1-gnu/drivers/gpu/ipu-v3/ipu-ic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/ipu-v3/ipu-ic.c	2019-07-28 02:28:39.000000000 -0400
@@ -257,7 +257,7 @@ static int init_csc(struct ipu_ic *ic,
 	writel(param, base++);
 
 	param = ((a[0] & 0x1fe0) >> 5) | (params->scale << 8) |
-		(params->sat << 9);
+		(params->sat << 10);
 	writel(param, base++);
 
 	param = ((a[1] & 0x1f) << 27) | ((c[0][1] & 0x1ff) << 18) |
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/gpu/ipu-v3/ipu-image-convert.c linux-libre-5.1.21-gnu/drivers/gpu/ipu-v3/ipu-image-convert.c
--- linux-libre-5.1-gnu/drivers/gpu/ipu-v3/ipu-image-convert.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/gpu/ipu-v3/ipu-image-convert.c	2019-07-28 02:28:39.000000000 -0400
@@ -409,12 +409,14 @@ static int calc_image_resize_coefficient
 	if (WARN_ON(resized_width == 0 || resized_height == 0))
 		return -EINVAL;
 
-	while (downsized_width >= resized_width * 2) {
+	while (downsized_width > 1024 ||
+	       downsized_width >= resized_width * 2) {
 		downsized_width >>= 1;
 		downsize_coeff_h++;
 	}
 
-	while (downsized_height >= resized_height * 2) {
+	while (downsized_height > 1024 ||
+	       downsized_height >= resized_height * 2) {
 		downsized_height >>= 1;
 		downsize_coeff_v++;
 	}
@@ -1885,7 +1887,8 @@ void ipu_image_convert_adjust(struct ipu
 			      enum ipu_rotate_mode rot_mode)
 {
 	const struct ipu_image_pixfmt *infmt, *outfmt;
-	u32 w_align, h_align;
+	u32 w_align_out, h_align_out;
+	u32 w_align_in, h_align_in;
 
 	infmt = get_format(in->pix.pixelformat);
 	outfmt = get_format(out->pix.pixelformat);
@@ -1917,22 +1920,33 @@ void ipu_image_convert_adjust(struct ipu
 	}
 
 	/* align input width/height */
-	w_align = ilog2(tile_width_align(IMAGE_CONVERT_IN, infmt, rot_mode));
-	h_align = ilog2(tile_height_align(IMAGE_CONVERT_IN, infmt, rot_mode));
-	in->pix.width = clamp_align(in->pix.width, MIN_W, MAX_W, w_align);
-	in->pix.height = clamp_align(in->pix.height, MIN_H, MAX_H, h_align);
+	w_align_in = ilog2(tile_width_align(IMAGE_CONVERT_IN, infmt,
+					    rot_mode));
+	h_align_in = ilog2(tile_height_align(IMAGE_CONVERT_IN, infmt,
+					     rot_mode));
+	in->pix.width = clamp_align(in->pix.width, MIN_W, MAX_W,
+				    w_align_in);
+	in->pix.height = clamp_align(in->pix.height, MIN_H, MAX_H,
+				     h_align_in);
 
 	/* align output width/height */
-	w_align = ilog2(tile_width_align(IMAGE_CONVERT_OUT, outfmt, rot_mode));
-	h_align = ilog2(tile_height_align(IMAGE_CONVERT_OUT, outfmt, rot_mode));
-	out->pix.width = clamp_align(out->pix.width, MIN_W, MAX_W, w_align);
-	out->pix.height = clamp_align(out->pix.height, MIN_H, MAX_H, h_align);
+	w_align_out = ilog2(tile_width_align(IMAGE_CONVERT_OUT, outfmt,
+					     rot_mode));
+	h_align_out = ilog2(tile_height_align(IMAGE_CONVERT_OUT, outfmt,
+					      rot_mode));
+	out->pix.width = clamp_align(out->pix.width, MIN_W, MAX_W,
+				     w_align_out);
+	out->pix.height = clamp_align(out->pix.height, MIN_H, MAX_H,
+				      h_align_out);
 
 	/* set input/output strides and image sizes */
 	in->pix.bytesperline = infmt->planar ?
-		clamp_align(in->pix.width, 2 << w_align, MAX_W, w_align) :
+		clamp_align(in->pix.width, 2 << w_align_in, MAX_W,
+			    w_align_in) :
 		clamp_align((in->pix.width * infmt->bpp) >> 3,
-			    2 << w_align, MAX_W, w_align);
+			    ((2 << w_align_in) * infmt->bpp) >> 3,
+			    (MAX_W * infmt->bpp) >> 3,
+			    w_align_in);
 	in->pix.sizeimage = infmt->planar ?
 		(in->pix.height * in->pix.bytesperline * infmt->bpp) >> 3 :
 		in->pix.height * in->pix.bytesperline;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-a4tech.c linux-libre-5.1.21-gnu/drivers/hid/hid-a4tech.c
--- linux-libre-5.1-gnu/drivers/hid/hid-a4tech.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-a4tech.c	2019-07-28 02:28:39.000000000 -0400
@@ -38,8 +38,10 @@ static int a4_input_mapped(struct hid_de
 {
 	struct a4tech_sc *a4 = hid_get_drvdata(hdev);
 
-	if (usage->type == EV_REL && usage->code == REL_WHEEL)
+	if (usage->type == EV_REL && usage->code == REL_WHEEL_HI_RES) {
 		set_bit(REL_HWHEEL, *bit);
+		set_bit(REL_HWHEEL_HI_RES, *bit);
+	}
 
 	if ((a4->quirks & A4_2WHEEL_MOUSE_HACK_7) && usage->hid == 0x00090007)
 		return -1;
@@ -60,7 +62,7 @@ static int a4_event(struct hid_device *h
 	input = field->hidinput->input;
 
 	if (a4->quirks & A4_2WHEEL_MOUSE_HACK_B8) {
-		if (usage->type == EV_REL && usage->code == REL_WHEEL) {
+		if (usage->type == EV_REL && usage->code == REL_WHEEL_HI_RES) {
 			a4->delayed_value = value;
 			return 1;
 		}
@@ -68,6 +70,8 @@ static int a4_event(struct hid_device *h
 		if (usage->hid == 0x000100b8) {
 			input_event(input, EV_REL, value ? REL_HWHEEL :
 					REL_WHEEL, a4->delayed_value);
+			input_event(input, EV_REL, value ? REL_HWHEEL_HI_RES :
+					REL_WHEEL_HI_RES, a4->delayed_value * 120);
 			return 1;
 		}
 	}
@@ -77,8 +81,9 @@ static int a4_event(struct hid_device *h
 		return 1;
 	}
 
-	if (usage->code == REL_WHEEL && a4->hw_wheel) {
+	if (usage->code == REL_WHEEL_HI_RES && a4->hw_wheel) {
 		input_event(input, usage->type, REL_HWHEEL, value);
+		input_event(input, usage->type, REL_HWHEEL_HI_RES, value * 120);
 		return 1;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-core.c linux-libre-5.1.21-gnu/drivers/hid/hid-core.c
--- linux-libre-5.1-gnu/drivers/hid/hid-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -218,13 +218,14 @@ static unsigned hid_lookup_collection(st
  * Add a usage to the temporary parser table.
  */
 
-static int hid_add_usage(struct hid_parser *parser, unsigned usage)
+static int hid_add_usage(struct hid_parser *parser, unsigned usage, u8 size)
 {
 	if (parser->local.usage_index >= HID_MAX_USAGES) {
 		hid_err(parser->device, "usage index exceeded\n");
 		return -1;
 	}
 	parser->local.usage[parser->local.usage_index] = usage;
+	parser->local.usage_size[parser->local.usage_index] = size;
 	parser->local.collection_index[parser->local.usage_index] =
 		parser->collection_stack_ptr ?
 		parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
@@ -486,10 +487,7 @@ static int hid_parser_local(struct hid_p
 			return 0;
 		}
 
-		if (item->size <= 2)
-			data = (parser->global.usage_page << 16) + data;
-
-		return hid_add_usage(parser, data);
+		return hid_add_usage(parser, data, item->size);
 
 	case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 
@@ -498,9 +496,6 @@ static int hid_parser_local(struct hid_p
 			return 0;
 		}
 
-		if (item->size <= 2)
-			data = (parser->global.usage_page << 16) + data;
-
 		parser->local.usage_minimum = data;
 		return 0;
 
@@ -511,9 +506,6 @@ static int hid_parser_local(struct hid_p
 			return 0;
 		}
 
-		if (item->size <= 2)
-			data = (parser->global.usage_page << 16) + data;
-
 		count = data - parser->local.usage_minimum;
 		if (count + parser->local.usage_index >= HID_MAX_USAGES) {
 			/*
@@ -533,7 +525,7 @@ static int hid_parser_local(struct hid_p
 		}
 
 		for (n = parser->local.usage_minimum; n <= data; n++)
-			if (hid_add_usage(parser, n)) {
+			if (hid_add_usage(parser, n, item->size)) {
 				dbg_hid("hid_add_usage failed\n");
 				return -1;
 			}
@@ -548,6 +540,22 @@ static int hid_parser_local(struct hid_p
 }
 
 /*
+ * Concatenate Usage Pages into Usages where relevant:
+ * As per specification, 6.2.2.8: "When the parser encounters a main item it
+ * concatenates the last declared Usage Page with a Usage to form a complete
+ * usage value."
+ */
+
+static void hid_concatenate_usage_page(struct hid_parser *parser)
+{
+	int i;
+
+	for (i = 0; i < parser->local.usage_index; i++)
+		if (parser->local.usage_size[i] <= 2)
+			parser->local.usage[i] += parser->global.usage_page << 16;
+}
+
+/*
  * Process a main item.
  */
 
@@ -556,6 +564,8 @@ static int hid_parser_main(struct hid_pa
 	__u32 data;
 	int ret;
 
+	hid_concatenate_usage_page(parser);
+
 	data = item_udata(item);
 
 	switch (item->tag) {
@@ -765,6 +775,8 @@ static int hid_scan_main(struct hid_pars
 	__u32 data;
 	int i;
 
+	hid_concatenate_usage_page(parser);
+
 	data = item_udata(item);
 
 	switch (item->tag) {
@@ -1301,10 +1313,10 @@ static u32 __extract(u8 *report, unsigne
 u32 hid_field_extract(const struct hid_device *hid, u8 *report,
 			unsigned offset, unsigned n)
 {
-	if (n > 256) {
-		hid_warn(hid, "hid_field_extract() called with n (%d) > 256! (%s)\n",
+	if (n > 32) {
+		hid_warn(hid, "hid_field_extract() called with n (%d) > 32! (%s)\n",
 			 n, current->comm);
-		n = 256;
+		n = 32;
 	}
 
 	return __extract(report, offset, n);
@@ -1624,7 +1636,7 @@ static struct hid_report *hid_get_report
  * Implement a generic .request() callback, using .raw_request()
  * DO NOT USE in hid drivers directly, but through hid_hw_request instead.
  */
-void __hid_request(struct hid_device *hid, struct hid_report *report,
+int __hid_request(struct hid_device *hid, struct hid_report *report,
 		int reqtype)
 {
 	char *buf;
@@ -1633,7 +1645,7 @@ void __hid_request(struct hid_device *hi
 
 	buf = hid_alloc_report_buf(report, GFP_KERNEL);
 	if (!buf)
-		return;
+		return -ENOMEM;
 
 	len = hid_report_len(report);
 
@@ -1650,8 +1662,11 @@ void __hid_request(struct hid_device *hi
 	if (reqtype == HID_REQ_GET_REPORT)
 		hid_input_report(hid, report->type, buf, ret, 0);
 
+	ret = 0;
+
 out:
 	kfree(buf);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(__hid_request);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-ids.h linux-libre-5.1.21-gnu/drivers/hid/hid-ids.h
--- linux-libre-5.1-gnu/drivers/hid/hid-ids.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-ids.h	2019-07-28 02:28:39.000000000 -0400
@@ -83,6 +83,7 @@
 #define HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP	0x1220
 #define HID_DEVICE_ID_ALPS_U1		0x1215
 #define HID_DEVICE_ID_ALPS_T4_BTNLESS	0x120C
+#define HID_DEVICE_ID_ALPS_1222		0x1222
 
 
 #define USB_VENDOR_ID_AMI		0x046b
@@ -272,6 +273,7 @@
 #define USB_DEVICE_ID_CHICONY_MULTI_TOUCH	0xb19d
 #define USB_DEVICE_ID_CHICONY_WIRELESS	0x0618
 #define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE	0x1053
+#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2	0x0939
 #define USB_DEVICE_ID_CHICONY_WIRELESS2	0x1123
 #define USB_DEVICE_ID_ASUS_AK1D		0x1125
 #define USB_DEVICE_ID_CHICONY_TOSHIBA_WT10A	0x1408
@@ -571,6 +573,7 @@
 
 #define USB_VENDOR_ID_HUION		0x256c
 #define USB_DEVICE_ID_HUION_TABLET	0x006e
+#define USB_DEVICE_ID_HUION_HS64	0x006d
 
 #define USB_VENDOR_ID_IBM					0x04b3
 #define USB_DEVICE_ID_IBM_SCROLLPOINT_III			0x3100
@@ -1235,6 +1238,7 @@
 #define USB_DEVICE_ID_PRIMAX_KEYBOARD	0x4e05
 #define USB_DEVICE_ID_PRIMAX_REZEL	0x4e72
 #define USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D0F	0x4d0f
+#define USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D65	0x4d65
 #define USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4E22	0x4e22
 
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-input.c linux-libre-5.1.21-gnu/drivers/hid/hid-input.c
--- linux-libre-5.1-gnu/drivers/hid/hid-input.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-input.c	2019-07-28 02:28:39.000000000 -0400
@@ -1557,52 +1557,71 @@ static void hidinput_close(struct input_
 	hid_hw_close(hid);
 }
 
-static void hidinput_change_resolution_multipliers(struct hid_device *hid)
+static bool __hidinput_change_resolution_multipliers(struct hid_device *hid,
+		struct hid_report *report, bool use_logical_max)
 {
-	struct hid_report_enum *rep_enum;
-	struct hid_report *rep;
 	struct hid_usage *usage;
+	bool update_needed = false;
 	int i, j;
 
-	rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
-	list_for_each_entry(rep, &rep_enum->report_list, list) {
-		bool update_needed = false;
+	if (report->maxfield == 0)
+		return false;
 
-		if (rep->maxfield == 0)
-			continue;
+	/*
+	 * If we have more than one feature within this report we
+	 * need to fill in the bits from the others before we can
+	 * overwrite the ones for the Resolution Multiplier.
+	 */
+	if (report->maxfield > 1) {
+		hid_hw_request(hid, report, HID_REQ_GET_REPORT);
+		hid_hw_wait(hid);
+	}
 
-		/*
-		 * If we have more than one feature within this report we
-		 * need to fill in the bits from the others before we can
-		 * overwrite the ones for the Resolution Multiplier.
+	for (i = 0; i < report->maxfield; i++) {
+		__s32 value = use_logical_max ?
+			      report->field[i]->logical_maximum :
+			      report->field[i]->logical_minimum;
+
+		/* There is no good reason for a Resolution
+		 * Multiplier to have a count other than 1.
+		 * Ignore that case.
 		 */
-		if (rep->maxfield > 1) {
-			hid_hw_request(hid, rep, HID_REQ_GET_REPORT);
-			hid_hw_wait(hid);
-		}
+		if (report->field[i]->report_count != 1)
+			continue;
 
-		for (i = 0; i < rep->maxfield; i++) {
-			__s32 logical_max = rep->field[i]->logical_maximum;
+		for (j = 0; j < report->field[i]->maxusage; j++) {
+			usage = &report->field[i]->usage[j];
 
-			/* There is no good reason for a Resolution
-			 * Multiplier to have a count other than 1.
-			 * Ignore that case.
-			 */
-			if (rep->field[i]->report_count != 1)
+			if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
 				continue;
 
-			for (j = 0; j < rep->field[i]->maxusage; j++) {
-				usage = &rep->field[i]->usage[j];
+			report->field[i]->value[j] = value;
+			update_needed = true;
+		}
+	}
 
-				if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
-					continue;
+	return update_needed;
+}
 
-				*rep->field[i]->value = logical_max;
-				update_needed = true;
+static void hidinput_change_resolution_multipliers(struct hid_device *hid)
+{
+	struct hid_report_enum *rep_enum;
+	struct hid_report *rep;
+	int ret;
+
+	rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
+	list_for_each_entry(rep, &rep_enum->report_list, list) {
+		bool update_needed = __hidinput_change_resolution_multipliers(hid,
+								     rep, true);
+
+		if (update_needed) {
+			ret = __hid_request(hid, rep, HID_REQ_SET_REPORT);
+			if (ret) {
+				__hidinput_change_resolution_multipliers(hid,
+								    rep, false);
+				return;
 			}
 		}
-		if (update_needed)
-			hid_hw_request(hid, rep, HID_REQ_SET_REPORT);
 	}
 
 	/* refresh our structs */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-logitech-hidpp.c linux-libre-5.1.21-gnu/drivers/hid/hid-logitech-hidpp.c
--- linux-libre-5.1-gnu/drivers/hid/hid-logitech-hidpp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-logitech-hidpp.c	2019-07-28 02:28:39.000000000 -0400
@@ -836,13 +836,16 @@ static int hidpp_root_get_feature(struct
 
 static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp)
 {
+	const u8 ping_byte = 0x5a;
+	u8 ping_data[3] = { 0, 0, ping_byte };
 	struct hidpp_report response;
 	int ret;
 
-	ret = hidpp_send_fap_command_sync(hidpp,
+	ret = hidpp_send_rap_command_sync(hidpp,
+			REPORT_ID_HIDPP_SHORT,
 			HIDPP_PAGE_ROOT_IDX,
 			CMD_ROOT_GET_PROTOCOL_VERSION,
-			NULL, 0, &response);
+			ping_data, sizeof(ping_data), &response);
 
 	if (ret == HIDPP_ERROR_INVALID_SUBID) {
 		hidpp->protocol_major = 1;
@@ -862,8 +865,14 @@ static int hidpp_root_get_protocol_versi
 	if (ret)
 		return ret;
 
-	hidpp->protocol_major = response.fap.params[0];
-	hidpp->protocol_minor = response.fap.params[1];
+	if (response.rap.params[2] != ping_byte) {
+		hid_err(hidpp->hid_dev, "%s: ping mismatch 0x%02x != 0x%02x\n",
+			__func__, response.rap.params[2], ping_byte);
+		return -EPROTO;
+	}
+
+	hidpp->protocol_major = response.rap.params[0];
+	hidpp->protocol_minor = response.rap.params[1];
 
 	return ret;
 }
@@ -1012,7 +1021,11 @@ static int hidpp_map_battery_level(int c
 {
 	if (capacity < 11)
 		return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
-	else if (capacity < 31)
+	/*
+	 * The spec says this should be < 31 but some devices report 30
+	 * with brand new batteries and Windows reports 30 as "Good".
+	 */
+	else if (capacity < 30)
 		return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
 	else if (capacity < 81)
 		return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-multitouch.c linux-libre-5.1.21-gnu/drivers/hid/hid-multitouch.c
--- linux-libre-5.1-gnu/drivers/hid/hid-multitouch.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-multitouch.c	2019-07-28 02:28:39.000000000 -0400
@@ -641,6 +641,13 @@ static void mt_store_field(struct hid_de
 	if (*target != DEFAULT_TRUE &&
 	    *target != DEFAULT_FALSE &&
 	    *target != DEFAULT_ZERO) {
+		if (usage->contactid == DEFAULT_ZERO ||
+		    usage->x == DEFAULT_ZERO ||
+		    usage->y == DEFAULT_ZERO) {
+			hid_dbg(hdev,
+				"ignoring duplicate usage on incomplete");
+			return;
+		}
 		usage = mt_allocate_usage(hdev, application);
 		if (!usage)
 			return;
@@ -1773,6 +1780,10 @@ static const struct hid_device_id mt_dev
 		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
 			USB_VENDOR_ID_ALPS_JP,
 			HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) },
+	{ .driver_data = MT_CLS_WIN_8_DUAL,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			USB_VENDOR_ID_ALPS_JP,
+			HID_DEVICE_ID_ALPS_1222) },
 
 	/* Lenovo X1 TAB Gen 2 */
 	{ .driver_data = MT_CLS_WIN_8_DUAL,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-quirks.c linux-libre-5.1.21-gnu/drivers/hid/hid-quirks.c
--- linux-libre-5.1-gnu/drivers/hid/hid-quirks.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-quirks.c	2019-07-28 02:28:39.000000000 -0400
@@ -45,6 +45,7 @@ static const struct hid_device_id hid_qu
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM), HID_QUIRK_NOGET },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD), HID_QUIRK_BADPAD },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK), HID_QUIRK_NOGET },
@@ -132,6 +133,7 @@ static const struct hid_device_id hid_qu
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_MOUSE_4D22), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D0F), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4D65), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_PIXART_MOUSE_4E22), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS), HID_QUIRK_NOGET },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001), HID_QUIRK_NOGET },
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-uclogic-core.c linux-libre-5.1.21-gnu/drivers/hid/hid-uclogic-core.c
--- linux-libre-5.1-gnu/drivers/hid/hid-uclogic-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-uclogic-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -369,6 +369,8 @@ static const struct hid_device_id uclogi
 				USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION,
 				USB_DEVICE_ID_HUION_TABLET) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION,
+				USB_DEVICE_ID_HUION_HS64) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
 				USB_DEVICE_ID_HUION_TABLET) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/hid-uclogic-params.c linux-libre-5.1.21-gnu/drivers/hid/hid-uclogic-params.c
--- linux-libre-5.1-gnu/drivers/hid/hid-uclogic-params.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/hid-uclogic-params.c	2019-07-28 02:28:39.000000000 -0400
@@ -977,6 +977,8 @@ int uclogic_params_init(struct uclogic_p
 		/* FALL THROUGH */
 	case VID_PID(USB_VENDOR_ID_HUION,
 		     USB_DEVICE_ID_HUION_TABLET):
+	case VID_PID(USB_VENDOR_ID_HUION,
+		     USB_DEVICE_ID_HUION_HS64):
 	case VID_PID(USB_VENDOR_ID_UCLOGIC,
 		     USB_DEVICE_ID_HUION_TABLET):
 	case VID_PID(USB_VENDOR_ID_UCLOGIC,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c linux-libre-5.1.21-gnu/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
--- linux-libre-5.1-gnu/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c	2019-07-28 02:28:39.000000000 -0400
@@ -354,6 +354,14 @@ static const struct dmi_system_id i2c_hi
 		},
 		.driver_data = (void *)&sipodev_desc
 	},
+	{
+		.ident = "iBall Aer3",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "iBall"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Aer3"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
 	{ }	/* Terminate list */
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/wacom_sys.c linux-libre-5.1.21-gnu/drivers/hid/wacom_sys.c
--- linux-libre-5.1-gnu/drivers/hid/wacom_sys.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/wacom_sys.c	2019-07-28 02:28:39.000000000 -0400
@@ -307,6 +307,9 @@ static void wacom_feature_mapping(struct
 	wacom_hid_usage_quirk(hdev, field, usage);
 
 	switch (equivalent_usage) {
+	case WACOM_HID_WD_TOUCH_RING_SETTING:
+		wacom->generic_has_leds = true;
+		break;
 	case HID_DG_CONTACTMAX:
 		/* leave touch_max as is if predefined */
 		if (!features->touch_max) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/wacom_wac.c linux-libre-5.1.21-gnu/drivers/hid/wacom_wac.c
--- linux-libre-5.1-gnu/drivers/hid/wacom_wac.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/wacom_wac.c	2019-07-28 02:28:39.000000000 -0400
@@ -1236,13 +1236,13 @@ static void wacom_intuos_pro2_bt_pen(str
 		/* Add back in missing bits of ID for non-USI pens */
 		wacom->id[0] |= (wacom->serial[0] >> 32) & 0xFFFFF;
 	}
-	wacom->tool[0]   = wacom_intuos_get_tool_type(wacom_intuos_id_mangle(wacom->id[0]));
 
 	for (i = 0; i < pen_frames; i++) {
 		unsigned char *frame = &data[i*pen_frame_len + 1];
 		bool valid = frame[0] & 0x80;
 		bool prox = frame[0] & 0x40;
 		bool range = frame[0] & 0x20;
+		bool invert = frame[0] & 0x10;
 
 		if (!valid)
 			continue;
@@ -1251,9 +1251,24 @@ static void wacom_intuos_pro2_bt_pen(str
 			wacom->shared->stylus_in_proximity = false;
 			wacom_exit_report(wacom);
 			input_sync(pen_input);
+
+			wacom->tool[0] = 0;
+			wacom->id[0] = 0;
+			wacom->serial[0] = 0;
 			return;
 		}
+
 		if (range) {
+			if (!wacom->tool[0]) { /* first in range */
+				/* Going into range select tool */
+				if (invert)
+					wacom->tool[0] = BTN_TOOL_RUBBER;
+				else if (wacom->id[0])
+					wacom->tool[0] = wacom_intuos_get_tool_type(wacom->id[0]);
+				else
+					wacom->tool[0] = BTN_TOOL_PEN;
+			}
+
 			input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
 			input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
 
@@ -1275,23 +1290,26 @@ static void wacom_intuos_pro2_bt_pen(str
 						 get_unaligned_le16(&frame[11]));
 			}
 		}
-		input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));
-		if (wacom->features.type == INTUOSP2_BT) {
-			input_report_abs(pen_input, ABS_DISTANCE,
-					 range ? frame[13] : wacom->features.distance_max);
-		} else {
-			input_report_abs(pen_input, ABS_DISTANCE,
-					 range ? frame[7] : wacom->features.distance_max);
-		}
 
-		input_report_key(pen_input, BTN_TOUCH, frame[0] & 0x01);
-		input_report_key(pen_input, BTN_STYLUS, frame[0] & 0x02);
-		input_report_key(pen_input, BTN_STYLUS2, frame[0] & 0x04);
+		if (wacom->tool[0]) {
+			input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));
+			if (wacom->features.type == INTUOSP2_BT) {
+				input_report_abs(pen_input, ABS_DISTANCE,
+						 range ? frame[13] : wacom->features.distance_max);
+			} else {
+				input_report_abs(pen_input, ABS_DISTANCE,
+						 range ? frame[7] : wacom->features.distance_max);
+			}
 
-		input_report_key(pen_input, wacom->tool[0], prox);
-		input_event(pen_input, EV_MSC, MSC_SERIAL, wacom->serial[0]);
-		input_report_abs(pen_input, ABS_MISC,
-				 wacom_intuos_id_mangle(wacom->id[0])); /* report tool id */
+			input_report_key(pen_input, BTN_TOUCH, frame[0] & 0x09);
+			input_report_key(pen_input, BTN_STYLUS, frame[0] & 0x02);
+			input_report_key(pen_input, BTN_STYLUS2, frame[0] & 0x04);
+
+			input_report_key(pen_input, wacom->tool[0], prox);
+			input_event(pen_input, EV_MSC, MSC_SERIAL, wacom->serial[0]);
+			input_report_abs(pen_input, ABS_MISC,
+					 wacom_intuos_id_mangle(wacom->id[0])); /* report tool id */
+		}
 
 		wacom->shared->stylus_in_proximity = prox;
 
@@ -1353,11 +1371,17 @@ static void wacom_intuos_pro2_bt_touch(s
 		if (wacom->num_contacts_left <= 0) {
 			wacom->num_contacts_left = 0;
 			wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
+			input_sync(touch_input);
 		}
 	}
 
-	input_report_switch(touch_input, SW_MUTE_DEVICE, !(data[281] >> 7));
-	input_sync(touch_input);
+	if (wacom->num_contacts_left == 0) {
+		// Be careful that we don't accidentally call input_sync with
+		// only a partial set of fingers of processed
+		input_report_switch(touch_input, SW_MUTE_DEVICE, !(data[281] >> 7));
+		input_sync(touch_input);
+	}
+
 }
 
 static void wacom_intuos_pro2_bt_pad(struct wacom_wac *wacom)
@@ -1365,7 +1389,7 @@ static void wacom_intuos_pro2_bt_pad(str
 	struct input_dev *pad_input = wacom->pad_input;
 	unsigned char *data = wacom->data;
 
-	int buttons = (data[282] << 1) | ((data[281] >> 6) & 0x01);
+	int buttons = data[282] | ((data[281] & 0x40) << 2);
 	int ring = data[285] & 0x7F;
 	bool ringstatus = data[285] & 0x80;
 	bool prox = buttons || ringstatus;
@@ -1906,8 +1930,6 @@ static void wacom_wac_pad_usage_mapping(
 		features->device_type |= WACOM_DEVICETYPE_PAD;
 		break;
 	case WACOM_HID_WD_BUTTONCENTER:
-		wacom->generic_has_leds = true;
-		/* fall through */
 	case WACOM_HID_WD_BUTTONHOME:
 	case WACOM_HID_WD_BUTTONUP:
 	case WACOM_HID_WD_BUTTONDOWN:
@@ -2099,14 +2121,12 @@ static void wacom_wac_pad_report(struct
 	bool active = wacom_wac->hid_data.inrange_state != 0;
 
 	/* report prox for expresskey events */
-	if ((wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) &&
-	    wacom_wac->hid_data.pad_input_event_flag) {
+	if (wacom_wac->hid_data.pad_input_event_flag) {
 		input_event(input, EV_ABS, ABS_MISC, active ? PAD_DEVICE_ID : 0);
 		input_sync(input);
 		if (!active)
 			wacom_wac->hid_data.pad_input_event_flag = false;
 	}
-
 }
 
 static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
@@ -2682,9 +2702,7 @@ static int wacom_wac_collection(struct h
 	if (report->type != HID_INPUT_REPORT)
 		return -1;
 
-	if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
-		wacom_wac_pad_report(hdev, report, field);
-	else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
+	if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
 		wacom_wac_pen_report(hdev, report);
 	else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
 		wacom_wac_finger_report(hdev, report);
@@ -2698,7 +2716,7 @@ void wacom_wac_report(struct hid_device
 	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
 	struct hid_field *field;
 	bool pad_in_hid_field = false, pen_in_hid_field = false,
-		finger_in_hid_field = false;
+		finger_in_hid_field = false, true_pad = false;
 	int r;
 	int prev_collection = -1;
 
@@ -2714,6 +2732,8 @@ void wacom_wac_report(struct hid_device
 			pen_in_hid_field = true;
 		if (WACOM_FINGER_FIELD(field))
 			finger_in_hid_field = true;
+		if (wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY)
+			true_pad = true;
 	}
 
 	wacom_wac_battery_pre_report(hdev, report);
@@ -2737,6 +2757,9 @@ void wacom_wac_report(struct hid_device
 	}
 
 	wacom_wac_battery_report(hdev, report);
+
+	if (true_pad && wacom->wacom_wac.pad_input)
+		wacom_wac_pad_report(hdev, report, field);
 }
 
 static int wacom_bpt_touch(struct wacom_wac *wacom)
@@ -3693,7 +3716,7 @@ int wacom_setup_touch_input_capabilities
 					     0, 5920, 4, 0);
 		}
 		input_abs_set_res(input_dev, ABS_MT_POSITION_X, 40);
-		input_abs_set_res(input_dev, ABS_MT_POSITION_X, 40);
+		input_abs_set_res(input_dev, ABS_MT_POSITION_Y, 40);
 
 		/* fall through */
 
@@ -3814,7 +3837,7 @@ static void wacom_24hd_update_leds(struc
 static bool wacom_is_led_toggled(struct wacom *wacom, int button_count,
 				 int mask, int group)
 {
-	int button_per_group;
+	int group_button;
 
 	/*
 	 * 21UX2 has LED group 1 to the left and LED group 0
@@ -3824,9 +3847,12 @@ static bool wacom_is_led_toggled(struct
 	if (wacom->wacom_wac.features.type == WACOM_21UX2)
 		group = 1 - group;
 
-	button_per_group = button_count/wacom->led.count;
+	group_button = group * (button_count/wacom->led.count);
 
-	return mask & (1 << (group * button_per_group));
+	if (wacom->wacom_wac.features.type == INTUOSP2_BT)
+		group_button = 8;
+
+	return mask & (1 << group_button);
 }
 
 static void wacom_update_led(struct wacom *wacom, int button_count, int mask,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hid/wacom_wac.h linux-libre-5.1.21-gnu/drivers/hid/wacom_wac.h
--- linux-libre-5.1-gnu/drivers/hid/wacom_wac.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hid/wacom_wac.h	2019-07-28 02:28:39.000000000 -0400
@@ -145,6 +145,7 @@
 #define WACOM_HID_WD_OFFSETBOTTOM       (WACOM_HID_UP_WACOMDIGITIZER | 0x0d33)
 #define WACOM_HID_WD_DATAMODE           (WACOM_HID_UP_WACOMDIGITIZER | 0x1002)
 #define WACOM_HID_WD_DIGITIZERINFO      (WACOM_HID_UP_WACOMDIGITIZER | 0x1013)
+#define WACOM_HID_WD_TOUCH_RING_SETTING (WACOM_HID_UP_WACOMDIGITIZER | 0x1032)
 #define WACOM_HID_UP_G9                 0xff090000
 #define WACOM_HID_G9_PEN                (WACOM_HID_UP_G9 | 0x02)
 #define WACOM_HID_G9_TOUCHSCREEN        (WACOM_HID_UP_G9 | 0x11)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hv/hv.c linux-libre-5.1.21-gnu/drivers/hv/hv.c
--- linux-libre-5.1-gnu/drivers/hv/hv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hv/hv.c	2019-07-28 02:28:39.000000000 -0400
@@ -408,7 +408,6 @@ int hv_synic_cleanup(unsigned int cpu)
 
 		clockevents_unbind_device(hv_cpu->clk_evt, cpu);
 		hv_ce_shutdown(hv_cpu->clk_evt);
-		put_cpu_ptr(hv_cpu);
 	}
 
 	hv_get_synint_state(VMBUS_MESSAGE_SINT, shared_sint.as_uint64);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/f71805f.c linux-libre-5.1.21-gnu/drivers/hwmon/f71805f.c
--- linux-libre-5.1-gnu/drivers/hwmon/f71805f.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/f71805f.c	2019-07-28 02:28:39.000000000 -0400
@@ -96,17 +96,23 @@ superio_select(int base, int ld)
 	outb(ld, base + 1);
 }
 
-static inline void
+static inline int
 superio_enter(int base)
 {
+	if (!request_muxed_region(base, 2, DRVNAME))
+		return -EBUSY;
+
 	outb(0x87, base);
 	outb(0x87, base);
+
+	return 0;
 }
 
 static inline void
 superio_exit(int base)
 {
 	outb(0xaa, base);
+	release_region(base, 2);
 }
 
 /*
@@ -1561,7 +1567,7 @@ exit:
 static int __init f71805f_find(int sioaddr, unsigned short *address,
 			       struct f71805f_sio_data *sio_data)
 {
-	int err = -ENODEV;
+	int err;
 	u16 devid;
 
 	static const char * const names[] = {
@@ -1569,8 +1575,11 @@ static int __init f71805f_find(int sioad
 		"F71872F/FG or F71806F/FG",
 	};
 
-	superio_enter(sioaddr);
+	err = superio_enter(sioaddr);
+	if (err)
+		return err;
 
+	err = -ENODEV;
 	devid = superio_inw(sioaddr, SIO_REG_MANID);
 	if (devid != SIO_FINTEK_ID)
 		goto exit;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/hwmon.c linux-libre-5.1.21-gnu/drivers/hwmon/hwmon.c
--- linux-libre-5.1-gnu/drivers/hwmon/hwmon.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/hwmon.c	2019-07-28 02:28:39.000000000 -0400
@@ -633,7 +633,7 @@ __hwmon_device_register(struct device *d
 	if (err)
 		goto free_hwmon;
 
-	if (dev && chip && chip->ops->read &&
+	if (dev && dev->of_node && chip && chip->ops->read &&
 	    chip->info[0]->type == hwmon_chip &&
 	    (chip->info[0]->config[0] & HWMON_C_REGISTER_TZ)) {
 		const struct hwmon_channel_info **info = chip->info;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/occ/sysfs.c linux-libre-5.1.21-gnu/drivers/hwmon/occ/sysfs.c
--- linux-libre-5.1-gnu/drivers/hwmon/occ/sysfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/occ/sysfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -42,16 +42,16 @@ static ssize_t occ_sysfs_show(struct dev
 		val = !!(header->status & OCC_STAT_ACTIVE);
 		break;
 	case 2:
-		val = !!(header->status & OCC_EXT_STAT_DVFS_OT);
+		val = !!(header->ext_status & OCC_EXT_STAT_DVFS_OT);
 		break;
 	case 3:
-		val = !!(header->status & OCC_EXT_STAT_DVFS_POWER);
+		val = !!(header->ext_status & OCC_EXT_STAT_DVFS_POWER);
 		break;
 	case 4:
-		val = !!(header->status & OCC_EXT_STAT_MEM_THROTTLE);
+		val = !!(header->ext_status & OCC_EXT_STAT_MEM_THROTTLE);
 		break;
 	case 5:
-		val = !!(header->status & OCC_EXT_STAT_QUICK_DROP);
+		val = !!(header->ext_status & OCC_EXT_STAT_QUICK_DROP);
 		break;
 	case 6:
 		val = header->occ_state;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/pc87427.c linux-libre-5.1.21-gnu/drivers/hwmon/pc87427.c
--- linux-libre-5.1-gnu/drivers/hwmon/pc87427.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/pc87427.c	2019-07-28 02:28:39.000000000 -0400
@@ -106,6 +106,13 @@ static const char *logdev_str[2] = { DRV
 #define LD_IN		1
 #define LD_TEMP		1
 
+static inline int superio_enter(int sioaddr)
+{
+	if (!request_muxed_region(sioaddr, 2, DRVNAME))
+		return -EBUSY;
+	return 0;
+}
+
 static inline void superio_outb(int sioaddr, int reg, int val)
 {
 	outb(reg, sioaddr);
@@ -122,6 +129,7 @@ static inline void superio_exit(int sioa
 {
 	outb(0x02, sioaddr);
 	outb(0x02, sioaddr + 1);
+	release_region(sioaddr, 2);
 }
 
 /*
@@ -1195,7 +1203,11 @@ static int __init pc87427_find(int sioad
 {
 	u16 val;
 	u8 cfg, cfg_b;
-	int i, err = 0;
+	int i, err;
+
+	err = superio_enter(sioaddr);
+	if (err)
+		return err;
 
 	/* Identify device */
 	val = force_id ? force_id : superio_inb(sioaddr, SIOREG_DEVID);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/pmbus/pmbus_core.c linux-libre-5.1.21-gnu/drivers/hwmon/pmbus/pmbus_core.c
--- linux-libre-5.1-gnu/drivers/hwmon/pmbus/pmbus_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/pmbus/pmbus_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -1230,7 +1230,8 @@ static int pmbus_add_sensor_attrs_one(st
 				      const struct pmbus_driver_info *info,
 				      const char *name,
 				      int index, int page,
-				      const struct pmbus_sensor_attr *attr)
+				      const struct pmbus_sensor_attr *attr,
+				      bool paged)
 {
 	struct pmbus_sensor *base;
 	bool upper = !!(attr->gbit & 0xff00);	/* need to check STATUS_WORD */
@@ -1238,7 +1239,7 @@ static int pmbus_add_sensor_attrs_one(st
 
 	if (attr->label) {
 		ret = pmbus_add_label(data, name, index, attr->label,
-				      attr->paged ? page + 1 : 0);
+				      paged ? page + 1 : 0);
 		if (ret)
 			return ret;
 	}
@@ -1271,6 +1272,30 @@ static int pmbus_add_sensor_attrs_one(st
 	return 0;
 }
 
+static bool pmbus_sensor_is_paged(const struct pmbus_driver_info *info,
+				  const struct pmbus_sensor_attr *attr)
+{
+	int p;
+
+	if (attr->paged)
+		return true;
+
+	/*
+	 * Some attributes may be present on more than one page despite
+	 * not being marked with the paged attribute. If that is the case,
+	 * then treat the sensor as being paged and add the page suffix to the
+	 * attribute name.
+	 * We don't just add the paged attribute to all such attributes, in
+	 * order to maintain the un-suffixed labels in the case where the
+	 * attribute is only on page 0.
+	 */
+	for (p = 1; p < info->pages; p++) {
+		if (info->func[p] & attr->func)
+			return true;
+	}
+	return false;
+}
+
 static int pmbus_add_sensor_attrs(struct i2c_client *client,
 				  struct pmbus_data *data,
 				  const char *name,
@@ -1284,14 +1309,15 @@ static int pmbus_add_sensor_attrs(struct
 	index = 1;
 	for (i = 0; i < nattrs; i++) {
 		int page, pages;
+		bool paged = pmbus_sensor_is_paged(info, attrs);
 
-		pages = attrs->paged ? info->pages : 1;
+		pages = paged ? info->pages : 1;
 		for (page = 0; page < pages; page++) {
 			if (!(info->func[page] & attrs->func))
 				continue;
 			ret = pmbus_add_sensor_attrs_one(client, data, info,
 							 name, index, page,
-							 attrs);
+							 attrs, paged);
 			if (ret)
 				return ret;
 			index++;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/pwm-fan.c linux-libre-5.1.21-gnu/drivers/hwmon/pwm-fan.c
--- linux-libre-5.1-gnu/drivers/hwmon/pwm-fan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/pwm-fan.c	2019-07-28 02:28:39.000000000 -0400
@@ -271,7 +271,7 @@ static int pwm_fan_probe(struct platform
 
 	ret = pwm_fan_of_get_cooling_data(&pdev->dev, ctx);
 	if (ret)
-		return ret;
+		goto err_pwm_disable;
 
 	ctx->pwm_fan_state = ctx->pwm_fan_max_state;
 	if (IS_ENABLED(CONFIG_THERMAL)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/smsc47b397.c linux-libre-5.1.21-gnu/drivers/hwmon/smsc47b397.c
--- linux-libre-5.1-gnu/drivers/hwmon/smsc47b397.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/smsc47b397.c	2019-07-28 02:28:39.000000000 -0400
@@ -72,14 +72,19 @@ static inline void superio_select(int ld
 	superio_outb(0x07, ld);
 }
 
-static inline void superio_enter(void)
+static inline int superio_enter(void)
 {
+	if (!request_muxed_region(REG, 2, DRVNAME))
+		return -EBUSY;
+
 	outb(0x55, REG);
+	return 0;
 }
 
 static inline void superio_exit(void)
 {
 	outb(0xAA, REG);
+	release_region(REG, 2);
 }
 
 #define SUPERIO_REG_DEVID	0x20
@@ -300,8 +305,12 @@ static int __init smsc47b397_find(void)
 	u8 id, rev;
 	char *name;
 	unsigned short addr;
+	int err;
+
+	err = superio_enter();
+	if (err)
+		return err;
 
-	superio_enter();
 	id = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID);
 
 	switch (id) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/smsc47m1.c linux-libre-5.1.21-gnu/drivers/hwmon/smsc47m1.c
--- linux-libre-5.1-gnu/drivers/hwmon/smsc47m1.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/smsc47m1.c	2019-07-28 02:28:39.000000000 -0400
@@ -73,16 +73,21 @@ superio_inb(int reg)
 /* logical device for fans is 0x0A */
 #define superio_select() superio_outb(0x07, 0x0A)
 
-static inline void
+static inline int
 superio_enter(void)
 {
+	if (!request_muxed_region(REG, 2, DRVNAME))
+		return -EBUSY;
+
 	outb(0x55, REG);
+	return 0;
 }
 
 static inline void
 superio_exit(void)
 {
 	outb(0xAA, REG);
+	release_region(REG, 2);
 }
 
 #define SUPERIO_REG_ACT		0x30
@@ -531,8 +536,12 @@ static int __init smsc47m1_find(struct s
 {
 	u8 val;
 	unsigned short addr;
+	int err;
+
+	err = superio_enter();
+	if (err)
+		return err;
 
-	superio_enter();
 	val = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID);
 
 	/*
@@ -608,13 +617,14 @@ static int __init smsc47m1_find(struct s
 static void smsc47m1_restore(const struct smsc47m1_sio_data *sio_data)
 {
 	if ((sio_data->activate & 0x01) == 0) {
-		superio_enter();
-		superio_select();
-
-		pr_info("Disabling device\n");
-		superio_outb(SUPERIO_REG_ACT, sio_data->activate);
-
-		superio_exit();
+		if (!superio_enter()) {
+			superio_select();
+			pr_info("Disabling device\n");
+			superio_outb(SUPERIO_REG_ACT, sio_data->activate);
+			superio_exit();
+		} else {
+			pr_warn("Failed to disable device\n");
+		}
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwmon/vt1211.c linux-libre-5.1.21-gnu/drivers/hwmon/vt1211.c
--- linux-libre-5.1-gnu/drivers/hwmon/vt1211.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwmon/vt1211.c	2019-07-28 02:28:39.000000000 -0400
@@ -226,15 +226,21 @@ static inline void superio_select(int si
 	outb(ldn, sio_cip + 1);
 }
 
-static inline void superio_enter(int sio_cip)
+static inline int superio_enter(int sio_cip)
 {
+	if (!request_muxed_region(sio_cip, 2, DRVNAME))
+		return -EBUSY;
+
 	outb(0x87, sio_cip);
 	outb(0x87, sio_cip);
+
+	return 0;
 }
 
 static inline void superio_exit(int sio_cip)
 {
 	outb(0xaa, sio_cip);
+	release_region(sio_cip, 2);
 }
 
 /* ---------------------------------------------------------------------
@@ -1282,11 +1288,14 @@ EXIT:
 
 static int __init vt1211_find(int sio_cip, unsigned short *address)
 {
-	int err = -ENODEV;
+	int err;
 	int devid;
 
-	superio_enter(sio_cip);
+	err = superio_enter(sio_cip);
+	if (err)
+		return err;
 
+	err = -ENODEV;
 	devid = force_id ? force_id : superio_inb(sio_cip, SIO_VT1211_DEVID);
 	if (devid != SIO_VT1211_ID)
 		goto EXIT;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwtracing/intel_th/msu.c linux-libre-5.1.21-gnu/drivers/hwtracing/intel_th/msu.c
--- linux-libre-5.1-gnu/drivers/hwtracing/intel_th/msu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwtracing/intel_th/msu.c	2019-07-28 02:28:39.000000000 -0400
@@ -84,6 +84,7 @@ struct msc_iter {
  * @reg_base:		register window base address
  * @thdev:		intel_th_device pointer
  * @win_list:		list of windows in multiblock mode
+ * @single_sgt:		single mode buffer
  * @nr_pages:		total number of pages allocated for this buffer
  * @single_sz:		amount of data in single mode
  * @single_wrap:	single mode wrap occurred
@@ -104,6 +105,7 @@ struct msc {
 	struct intel_th_device	*thdev;
 
 	struct list_head	win_list;
+	struct sg_table		single_sgt;
 	unsigned long		nr_pages;
 	unsigned long		single_sz;
 	unsigned int		single_wrap : 1;
@@ -617,22 +619,45 @@ static void intel_th_msc_deactivate(stru
  */
 static int msc_buffer_contig_alloc(struct msc *msc, unsigned long size)
 {
+	unsigned long nr_pages = size >> PAGE_SHIFT;
 	unsigned int order = get_order(size);
 	struct page *page;
+	int ret;
 
 	if (!size)
 		return 0;
 
-	page = alloc_pages(GFP_KERNEL | __GFP_ZERO, order);
+	ret = sg_alloc_table(&msc->single_sgt, 1, GFP_KERNEL);
+	if (ret)
+		goto err_out;
+
+	ret = -ENOMEM;
+	page = alloc_pages(GFP_KERNEL | __GFP_ZERO | GFP_DMA32, order);
 	if (!page)
-		return -ENOMEM;
+		goto err_free_sgt;
 
 	split_page(page, order);
-	msc->nr_pages = size >> PAGE_SHIFT;
+	sg_set_buf(msc->single_sgt.sgl, page_address(page), size);
+
+	ret = dma_map_sg(msc_dev(msc)->parent->parent, msc->single_sgt.sgl, 1,
+			 DMA_FROM_DEVICE);
+	if (ret < 0)
+		goto err_free_pages;
+
+	msc->nr_pages = nr_pages;
 	msc->base = page_address(page);
-	msc->base_addr = page_to_phys(page);
+	msc->base_addr = sg_dma_address(msc->single_sgt.sgl);
 
 	return 0;
+
+err_free_pages:
+	__free_pages(page, order);
+
+err_free_sgt:
+	sg_free_table(&msc->single_sgt);
+
+err_out:
+	return ret;
 }
 
 /**
@@ -643,6 +668,10 @@ static void msc_buffer_contig_free(struc
 {
 	unsigned long off;
 
+	dma_unmap_sg(msc_dev(msc)->parent->parent, msc->single_sgt.sgl,
+		     1, DMA_FROM_DEVICE);
+	sg_free_table(&msc->single_sgt);
+
 	for (off = 0; off < msc->nr_pages << PAGE_SHIFT; off += PAGE_SIZE) {
 		struct page *page = virt_to_page(msc->base + off);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwtracing/intel_th/pci.c linux-libre-5.1.21-gnu/drivers/hwtracing/intel_th/pci.c
--- linux-libre-5.1-gnu/drivers/hwtracing/intel_th/pci.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwtracing/intel_th/pci.c	2019-07-28 02:28:39.000000000 -0400
@@ -165,6 +165,16 @@ static const struct pci_device_id intel_
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x34a6),
 		.driver_data = (kernel_ulong_t)&intel_th_2x,
 	},
+	{
+		/* Comet Lake */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x02a6),
+		.driver_data = (kernel_ulong_t)&intel_th_2x,
+	},
+	{
+		/* Ice Lake NNPI */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x45c5),
+		.driver_data = (kernel_ulong_t)&intel_th_2x,
+	},
 	{ 0 },
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/hwtracing/stm/core.c linux-libre-5.1.21-gnu/drivers/hwtracing/stm/core.c
--- linux-libre-5.1-gnu/drivers/hwtracing/stm/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/hwtracing/stm/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -166,11 +166,10 @@ stm_master(struct stm_device *stm, unsig
 static int stp_master_alloc(struct stm_device *stm, unsigned int idx)
 {
 	struct stp_master *master;
-	size_t size;
 
-	size = ALIGN(stm->data->sw_nchannels, 8) / 8;
-	size += sizeof(struct stp_master);
-	master = kzalloc(size, GFP_ATOMIC);
+	master = kzalloc(struct_size(master, chan_map,
+				     BITS_TO_LONGS(stm->data->sw_nchannels)),
+			 GFP_ATOMIC);
 	if (!master)
 		return -ENOMEM;
 
@@ -218,8 +217,8 @@ stm_output_disclaim(struct stm_device *s
 	bitmap_release_region(&master->chan_map[0], output->channel,
 			      ilog2(output->nr_chans));
 
-	output->nr_chans = 0;
 	master->nr_free += output->nr_chans;
+	output->nr_chans = 0;
 }
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/i2c/busses/i2c-acorn.c linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-acorn.c
--- linux-libre-5.1-gnu/drivers/i2c/busses/i2c-acorn.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-acorn.c	2019-07-28 02:28:39.000000000 -0400
@@ -81,6 +81,7 @@ static struct i2c_algo_bit_data ioc_data
 
 static struct i2c_adapter ioc_ops = {
 	.nr			= 0,
+	.name			= "ioc",
 	.algo_data		= &ioc_data,
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/i2c/busses/i2c-mlxcpld.c linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-mlxcpld.c
--- linux-libre-5.1-gnu/drivers/i2c/busses/i2c-mlxcpld.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-mlxcpld.c	2019-07-28 02:28:39.000000000 -0400
@@ -503,6 +503,7 @@ static int mlxcpld_i2c_probe(struct plat
 	platform_set_drvdata(pdev, priv);
 
 	priv->dev = &pdev->dev;
+	priv->base_addr = MLXPLAT_CPLD_LPC_I2C_BASE_ADDR;
 
 	/* Register with i2c layer */
 	mlxcpld_i2c_adapter.timeout = usecs_to_jiffies(MLXCPLD_I2C_XFER_TO);
@@ -518,7 +519,6 @@ static int mlxcpld_i2c_probe(struct plat
 		mlxcpld_i2c_adapter.nr = pdev->id;
 	priv->adap = mlxcpld_i2c_adapter;
 	priv->adap.dev.parent = &pdev->dev;
-	priv->base_addr = MLXPLAT_CPLD_LPC_I2C_BASE_ADDR;
 	i2c_set_adapdata(&priv->adap, priv);
 
 	err = i2c_add_numbered_adapter(&priv->adap);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/i2c/busses/i2c-pca-platform.c linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-pca-platform.c
--- linux-libre-5.1-gnu/drivers/i2c/busses/i2c-pca-platform.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-pca-platform.c	2019-07-28 02:28:39.000000000 -0400
@@ -21,7 +21,6 @@
 #include <linux/platform_device.h>
 #include <linux/i2c-algo-pca.h>
 #include <linux/platform_data/i2c-pca-platform.h>
-#include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/io.h>
 #include <linux/of.h>
@@ -173,7 +172,7 @@ static int i2c_pca_pf_probe(struct platf
 	i2c->adap.dev.parent = &pdev->dev;
 	i2c->adap.dev.of_node = np;
 
-	i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", GPIOD_OUT_LOW);
+	i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(i2c->gpio))
 		return PTR_ERR(i2c->gpio);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/i2c/busses/i2c-synquacer.c linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-synquacer.c
--- linux-libre-5.1-gnu/drivers/i2c/busses/i2c-synquacer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-synquacer.c	2019-07-28 02:28:39.000000000 -0400
@@ -351,7 +351,7 @@ static int synquacer_i2c_doxfer(struct s
 	/* wait 2 clock periods to ensure the stop has been through the bus */
 	udelay(DIV_ROUND_UP(2 * 1000, i2c->speed_khz));
 
-	return 0;
+	return ret;
 }
 
 static irqreturn_t synquacer_i2c_isr(int irq, void *dev_id)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/i2c/busses/i2c-xiic.c linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-xiic.c
--- linux-libre-5.1-gnu/drivers/i2c/busses/i2c-xiic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/i2c/busses/i2c-xiic.c	2019-07-28 02:28:39.000000000 -0400
@@ -718,11 +718,16 @@ static const struct i2c_algorithm xiic_a
 	.functionality = xiic_func,
 };
 
+static const struct i2c_adapter_quirks xiic_quirks = {
+	.max_read_len = 255,
+};
+
 static const struct i2c_adapter xiic_adapter = {
 	.owner = THIS_MODULE,
 	.name = DRIVER_NAME,
 	.class = I2C_CLASS_DEPRECATED,
 	.algo = &xiic_algorithm,
+	.quirks = &xiic_quirks,
 };
 
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/i2c/i2c-core-base.c linux-libre-5.1.21-gnu/drivers/i2c/i2c-core-base.c
--- linux-libre-5.1-gnu/drivers/i2c/i2c-core-base.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/i2c/i2c-core-base.c	2019-07-28 02:28:39.000000000 -0400
@@ -1871,8 +1871,11 @@ int __i2c_transfer(struct i2c_adapter *a
 
 	if (WARN_ON(!msgs || num < 1))
 		return -EINVAL;
-	if (WARN_ON(test_bit(I2C_ALF_IS_SUSPENDED, &adap->locked_flags)))
+	if (test_bit(I2C_ALF_IS_SUSPENDED, &adap->locked_flags)) {
+		if (!test_and_set_bit(I2C_ALF_SUSPEND_REPORTED, &adap->locked_flags))
+			dev_WARN(&adap->dev, "Transfer while suspended\n");
 		return -ESHUTDOWN;
+	}
 
 	if (adap->quirks && i2c_check_for_quirks(adap, msgs, num))
 		return -EOPNOTSUPP;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/i2c/i2c-dev.c linux-libre-5.1.21-gnu/drivers/i2c/i2c-dev.c
--- linux-libre-5.1-gnu/drivers/i2c/i2c-dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/i2c/i2c-dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -283,6 +283,7 @@ static noinline int i2cdev_ioctl_rdwr(st
 			    msgs[i].len < 1 || msgs[i].buf[0] < 1 ||
 			    msgs[i].len < msgs[i].buf[0] +
 					     I2C_SMBUS_BLOCK_MAX) {
+				i++;
 				res = -EINVAL;
 				break;
 			}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/i3c/master.c linux-libre-5.1.21-gnu/drivers/i3c/master.c
--- linux-libre-5.1-gnu/drivers/i3c/master.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/i3c/master.c	2019-07-28 02:28:39.000000000 -0400
@@ -91,6 +91,12 @@ void i3c_bus_normaluse_unlock(struct i3c
 	up_read(&bus->lock);
 }
 
+static struct i3c_master_controller *
+i3c_bus_to_i3c_master(struct i3c_bus *i3cbus)
+{
+	return container_of(i3cbus, struct i3c_master_controller, bus);
+}
+
 static struct i3c_master_controller *dev_to_i3cmaster(struct device *dev)
 {
 	return container_of(dev, struct i3c_master_controller, dev);
@@ -385,8 +391,9 @@ static void i3c_bus_set_addr_slot_status
 		return;
 
 	ptr = bus->addrslots + (bitpos / BITS_PER_LONG);
-	*ptr &= ~(I3C_ADDR_SLOT_STATUS_MASK << (bitpos % BITS_PER_LONG));
-	*ptr |= status << (bitpos % BITS_PER_LONG);
+	*ptr &= ~((unsigned long)I3C_ADDR_SLOT_STATUS_MASK <<
+						(bitpos % BITS_PER_LONG));
+	*ptr |= (unsigned long)status << (bitpos % BITS_PER_LONG);
 }
 
 static bool i3c_bus_dev_addr_is_avail(struct i3c_bus *bus, u8 addr)
@@ -564,20 +571,38 @@ static const struct device_type i3c_mast
 	.groups	= i3c_masterdev_groups,
 };
 
-int i3c_bus_set_mode(struct i3c_bus *i3cbus, enum i3c_bus_mode mode)
+int i3c_bus_set_mode(struct i3c_bus *i3cbus, enum i3c_bus_mode mode,
+		     unsigned long max_i2c_scl_rate)
 {
-	i3cbus->mode = mode;
+	struct i3c_master_controller *master = i3c_bus_to_i3c_master(i3cbus);
 
-	if (!i3cbus->scl_rate.i3c)
-		i3cbus->scl_rate.i3c = I3C_BUS_TYP_I3C_SCL_RATE;
+	i3cbus->mode = mode;
 
-	if (!i3cbus->scl_rate.i2c) {
-		if (i3cbus->mode == I3C_BUS_MODE_MIXED_SLOW)
-			i3cbus->scl_rate.i2c = I3C_BUS_I2C_FM_SCL_RATE;
-		else
-			i3cbus->scl_rate.i2c = I3C_BUS_I2C_FM_PLUS_SCL_RATE;
+	switch (i3cbus->mode) {
+	case I3C_BUS_MODE_PURE:
+		if (!i3cbus->scl_rate.i3c)
+			i3cbus->scl_rate.i3c = I3C_BUS_TYP_I3C_SCL_RATE;
+		break;
+	case I3C_BUS_MODE_MIXED_FAST:
+		if (!i3cbus->scl_rate.i3c)
+			i3cbus->scl_rate.i3c = I3C_BUS_TYP_I3C_SCL_RATE;
+		if (!i3cbus->scl_rate.i2c)
+			i3cbus->scl_rate.i2c = max_i2c_scl_rate;
+		break;
+	case I3C_BUS_MODE_MIXED_SLOW:
+		if (!i3cbus->scl_rate.i2c)
+			i3cbus->scl_rate.i2c = max_i2c_scl_rate;
+		if (!i3cbus->scl_rate.i3c ||
+		    i3cbus->scl_rate.i3c > i3cbus->scl_rate.i2c)
+			i3cbus->scl_rate.i3c = i3cbus->scl_rate.i2c;
+		break;
+	default:
+		return -EINVAL;
 	}
 
+	dev_dbg(&master->dev, "i2c-scl = %ld Hz i3c-scl = %ld Hz\n",
+		i3cbus->scl_rate.i2c, i3cbus->scl_rate.i3c);
+
 	/*
 	 * I3C/I2C frequency may have been overridden, check that user-provided
 	 * values are not exceeding max possible frequency.
@@ -1965,9 +1990,6 @@ of_i3c_master_add_i2c_boardinfo(struct i
 	/* LVR is encoded in reg[2]. */
 	boardinfo->lvr = reg[2];
 
-	if (boardinfo->lvr & I3C_LVR_I2C_FM_MODE)
-		master->bus.scl_rate.i2c = I3C_BUS_I2C_FM_SCL_RATE;
-
 	list_add_tail(&boardinfo->node, &master->boardinfo.i2c);
 	of_node_get(node);
 
@@ -2416,6 +2438,7 @@ int i3c_master_register(struct i3c_maste
 			const struct i3c_master_controller_ops *ops,
 			bool secondary)
 {
+	unsigned long i2c_scl_rate = I3C_BUS_I2C_FM_PLUS_SCL_RATE;
 	struct i3c_bus *i3cbus = i3c_master_get_bus(master);
 	enum i3c_bus_mode mode = I3C_BUS_MODE_PURE;
 	struct i2c_dev_boardinfo *i2cbi;
@@ -2465,9 +2488,12 @@ int i3c_master_register(struct i3c_maste
 			ret = -EINVAL;
 			goto err_put_dev;
 		}
+
+		if (i2cbi->lvr & I3C_LVR_I2C_FM_MODE)
+			i2c_scl_rate = I3C_BUS_I2C_FM_SCL_RATE;
 	}
 
-	ret = i3c_bus_set_mode(i3cbus, mode);
+	ret = i3c_bus_set_mode(i3cbus, mode, i2c_scl_rate);
 	if (ret)
 		goto err_put_dev;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/adc/ad_sigma_delta.c linux-libre-5.1.21-gnu/drivers/iio/adc/ad_sigma_delta.c
--- linux-libre-5.1-gnu/drivers/iio/adc/ad_sigma_delta.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/adc/ad_sigma_delta.c	2019-07-28 02:28:39.000000000 -0400
@@ -62,7 +62,7 @@ int ad_sd_write_reg(struct ad_sigma_delt
 	struct spi_transfer t = {
 		.tx_buf		= data,
 		.len		= size + 1,
-		.cs_change	= sigma_delta->bus_locked,
+		.cs_change	= sigma_delta->keep_cs_asserted,
 	};
 	struct spi_message m;
 	int ret;
@@ -218,6 +218,7 @@ static int ad_sd_calibrate(struct ad_sig
 
 	spi_bus_lock(sigma_delta->spi->master);
 	sigma_delta->bus_locked = true;
+	sigma_delta->keep_cs_asserted = true;
 	reinit_completion(&sigma_delta->completion);
 
 	ret = ad_sigma_delta_set_mode(sigma_delta, mode);
@@ -235,9 +236,10 @@ static int ad_sd_calibrate(struct ad_sig
 		ret = 0;
 	}
 out:
+	sigma_delta->keep_cs_asserted = false;
+	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);
 	sigma_delta->bus_locked = false;
 	spi_bus_unlock(sigma_delta->spi->master);
-	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);
 
 	return ret;
 }
@@ -290,6 +292,7 @@ int ad_sigma_delta_single_conversion(str
 
 	spi_bus_lock(sigma_delta->spi->master);
 	sigma_delta->bus_locked = true;
+	sigma_delta->keep_cs_asserted = true;
 	reinit_completion(&sigma_delta->completion);
 
 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_SINGLE);
@@ -299,9 +302,6 @@ int ad_sigma_delta_single_conversion(str
 	ret = wait_for_completion_interruptible_timeout(
 			&sigma_delta->completion, HZ);
 
-	sigma_delta->bus_locked = false;
-	spi_bus_unlock(sigma_delta->spi->master);
-
 	if (ret == 0)
 		ret = -EIO;
 	if (ret < 0)
@@ -322,7 +322,10 @@ out:
 		sigma_delta->irq_dis = true;
 	}
 
+	sigma_delta->keep_cs_asserted = false;
 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);
+	sigma_delta->bus_locked = false;
+	spi_bus_unlock(sigma_delta->spi->master);
 	mutex_unlock(&indio_dev->mlock);
 
 	if (ret)
@@ -359,6 +362,8 @@ static int ad_sd_buffer_postenable(struc
 
 	spi_bus_lock(sigma_delta->spi->master);
 	sigma_delta->bus_locked = true;
+	sigma_delta->keep_cs_asserted = true;
+
 	ret = ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_CONTINUOUS);
 	if (ret)
 		goto err_unlock;
@@ -387,6 +392,7 @@ static int ad_sd_buffer_postdisable(stru
 		sigma_delta->irq_dis = true;
 	}
 
+	sigma_delta->keep_cs_asserted = false;
 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);
 
 	sigma_delta->bus_locked = false;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/adc/Kconfig linux-libre-5.1.21-gnu/drivers/iio/adc/Kconfig
--- linux-libre-5.1-gnu/drivers/iio/adc/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/adc/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -809,6 +809,7 @@ config STM32_DFSDM_ADC
 	depends on (ARCH_STM32 && OF) || COMPILE_TEST
 	select STM32_DFSDM_CORE
 	select REGMAP_MMIO
+	select IIO_BUFFER
 	select IIO_BUFFER_HW_CONSUMER
 	help
 	  Select this option to support ADCSigma delta modulator for
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/adc/npcm_adc.c linux-libre-5.1.21-gnu/drivers/iio/adc/npcm_adc.c
--- linux-libre-5.1-gnu/drivers/iio/adc/npcm_adc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/adc/npcm_adc.c	2019-07-28 02:28:39.000000000 -0400
@@ -149,7 +149,7 @@ static int npcm_adc_read_raw(struct iio_
 		}
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		if (info->vref) {
+		if (!IS_ERR(info->vref)) {
 			vref_uv = regulator_get_voltage(info->vref);
 			*val = vref_uv / 1000;
 		} else {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/adc/qcom-spmi-adc5.c linux-libre-5.1.21-gnu/drivers/iio/adc/qcom-spmi-adc5.c
--- linux-libre-5.1-gnu/drivers/iio/adc/qcom-spmi-adc5.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/adc/qcom-spmi-adc5.c	2019-07-28 02:28:39.000000000 -0400
@@ -664,6 +664,7 @@ static const struct of_device_id adc5_ma
 	},
 	{ }
 };
+MODULE_DEVICE_TABLE(of, adc5_match_table);
 
 static int adc5_get_dt_data(struct adc5_chip *adc, struct device_node *node)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/adc/stm32-adc-core.c linux-libre-5.1.21-gnu/drivers/iio/adc/stm32-adc-core.c
--- linux-libre-5.1-gnu/drivers/iio/adc/stm32-adc-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/adc/stm32-adc-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -87,6 +87,7 @@ struct stm32_adc_priv_cfg {
  * @domain:		irq domain reference
  * @aclk:		clock reference for the analog circuitry
  * @bclk:		bus clock common for all ADCs, depends on part used
+ * @vdda:		vdda analog supply reference
  * @vref:		regulator reference
  * @cfg:		compatible configuration data
  * @common:		common data for all ADC instances
@@ -97,6 +98,7 @@ struct stm32_adc_priv {
 	struct irq_domain		*domain;
 	struct clk			*aclk;
 	struct clk			*bclk;
+	struct regulator		*vdda;
 	struct regulator		*vref;
 	const struct stm32_adc_priv_cfg	*cfg;
 	struct stm32_adc_common		common;
@@ -394,10 +396,16 @@ static int stm32_adc_core_hw_start(struc
 	struct stm32_adc_priv *priv = to_stm32_adc_priv(common);
 	int ret;
 
+	ret = regulator_enable(priv->vdda);
+	if (ret < 0) {
+		dev_err(dev, "vdda enable failed %d\n", ret);
+		return ret;
+	}
+
 	ret = regulator_enable(priv->vref);
 	if (ret < 0) {
 		dev_err(dev, "vref enable failed\n");
-		return ret;
+		goto err_vdda_disable;
 	}
 
 	if (priv->bclk) {
@@ -425,6 +433,8 @@ err_bclk_disable:
 		clk_disable_unprepare(priv->bclk);
 err_regulator_disable:
 	regulator_disable(priv->vref);
+err_vdda_disable:
+	regulator_disable(priv->vdda);
 
 	return ret;
 }
@@ -441,6 +451,7 @@ static void stm32_adc_core_hw_stop(struc
 	if (priv->bclk)
 		clk_disable_unprepare(priv->bclk);
 	regulator_disable(priv->vref);
+	regulator_disable(priv->vdda);
 }
 
 static int stm32_adc_probe(struct platform_device *pdev)
@@ -468,6 +479,14 @@ static int stm32_adc_probe(struct platfo
 		return PTR_ERR(priv->common.base);
 	priv->common.phys_base = res->start;
 
+	priv->vdda = devm_regulator_get(&pdev->dev, "vdda");
+	if (IS_ERR(priv->vdda)) {
+		ret = PTR_ERR(priv->vdda);
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "vdda get failed, %d\n", ret);
+		return ret;
+	}
+
 	priv->vref = devm_regulator_get(&pdev->dev, "vref");
 	if (IS_ERR(priv->vref)) {
 		ret = PTR_ERR(priv->vref);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/adc/ti-ads124s08.c linux-libre-5.1.21-gnu/drivers/iio/adc/ti-ads124s08.c
--- linux-libre-5.1-gnu/drivers/iio/adc/ti-ads124s08.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/adc/ti-ads124s08.c	2019-07-28 02:28:39.000000000 -0400
@@ -202,7 +202,7 @@ static int ads124s_read(struct iio_dev *
 	};
 
 	priv->data[0] = ADS124S08_CMD_RDATA;
-	memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data));
+	memset(&priv->data[1], ADS124S08_CMD_NOP, sizeof(priv->data) - 1);
 
 	ret = spi_sync_transfer(priv->spi, t, ARRAY_SIZE(t));
 	if (ret < 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/adc/ti-ads7950.c linux-libre-5.1.21-gnu/drivers/iio/adc/ti-ads7950.c
--- linux-libre-5.1-gnu/drivers/iio/adc/ti-ads7950.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/adc/ti-ads7950.c	2019-07-28 02:28:39.000000000 -0400
@@ -56,6 +56,9 @@ struct ti_ads7950_state {
 	struct spi_message	ring_msg;
 	struct spi_message	scan_single_msg;
 
+	/* Lock to protect the spi xfer buffers */
+	struct mutex		slock;
+
 	struct regulator	*reg;
 	unsigned int		vref_mv;
 
@@ -268,6 +271,7 @@ static irqreturn_t ti_ads7950_trigger_ha
 	struct ti_ads7950_state *st = iio_priv(indio_dev);
 	int ret;
 
+	mutex_lock(&st->slock);
 	ret = spi_sync(st->spi, &st->ring_msg);
 	if (ret < 0)
 		goto out;
@@ -276,6 +280,7 @@ static irqreturn_t ti_ads7950_trigger_ha
 					   iio_get_time_ns(indio_dev));
 
 out:
+	mutex_unlock(&st->slock);
 	iio_trigger_notify_done(indio_dev->trig);
 
 	return IRQ_HANDLED;
@@ -286,7 +291,7 @@ static int ti_ads7950_scan_direct(struct
 	struct ti_ads7950_state *st = iio_priv(indio_dev);
 	int ret, cmd;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->slock);
 
 	cmd = TI_ADS7950_CR_WRITE | TI_ADS7950_CR_CHAN(ch) | st->settings;
 	st->single_tx = cmd;
@@ -298,7 +303,7 @@ static int ti_ads7950_scan_direct(struct
 	ret = st->single_rx;
 
 out:
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->slock);
 
 	return ret;
 }
@@ -432,16 +437,19 @@ static int ti_ads7950_probe(struct spi_d
 	if (ACPI_COMPANION(&spi->dev))
 		st->vref_mv = TI_ADS7950_VA_MV_ACPI_DEFAULT;
 
+	mutex_init(&st->slock);
+
 	st->reg = devm_regulator_get(&spi->dev, "vref");
 	if (IS_ERR(st->reg)) {
 		dev_err(&spi->dev, "Failed get get regulator \"vref\"\n");
-		return PTR_ERR(st->reg);
+		ret = PTR_ERR(st->reg);
+		goto error_destroy_mutex;
 	}
 
 	ret = regulator_enable(st->reg);
 	if (ret) {
 		dev_err(&spi->dev, "Failed to enable regulator \"vref\"\n");
-		return ret;
+		goto error_destroy_mutex;
 	}
 
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,
@@ -463,6 +471,8 @@ error_cleanup_ring:
 	iio_triggered_buffer_cleanup(indio_dev);
 error_disable_reg:
 	regulator_disable(st->reg);
+error_destroy_mutex:
+	mutex_destroy(&st->slock);
 
 	return ret;
 }
@@ -475,6 +485,7 @@ static int ti_ads7950_remove(struct spi_
 	iio_device_unregister(indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
 	regulator_disable(st->reg);
+	mutex_destroy(&st->slock);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/adc/ti-ads8688.c linux-libre-5.1.21-gnu/drivers/iio/adc/ti-ads8688.c
--- linux-libre-5.1-gnu/drivers/iio/adc/ti-ads8688.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/adc/ti-ads8688.c	2019-07-28 02:28:39.000000000 -0400
@@ -397,7 +397,7 @@ static irqreturn_t ads8688_trigger_handl
 	}
 
 	iio_push_to_buffers_with_timestamp(indio_dev, buffer,
-			pf->timestamp);
+			iio_get_time_ns(indio_dev));
 
 	iio_trigger_notify_done(indio_dev->trig);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/common/ssp_sensors/ssp_iio.c linux-libre-5.1.21-gnu/drivers/iio/common/ssp_sensors/ssp_iio.c
--- linux-libre-5.1-gnu/drivers/iio/common/ssp_sensors/ssp_iio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/common/ssp_sensors/ssp_iio.c	2019-07-28 02:28:39.000000000 -0400
@@ -81,7 +81,7 @@ int ssp_common_process_data(struct iio_d
 			    unsigned int len, int64_t timestamp)
 {
 	__le32 time;
-	int64_t calculated_time;
+	int64_t calculated_time = 0;
 	struct ssp_sensor_data *spd = iio_priv(indio_dev);
 
 	if (indio_dev->scan_bytes == 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/dac/ds4424.c linux-libre-5.1.21-gnu/drivers/iio/dac/ds4424.c
--- linux-libre-5.1-gnu/drivers/iio/dac/ds4424.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/dac/ds4424.c	2019-07-28 02:28:39.000000000 -0400
@@ -166,7 +166,7 @@ static int ds4424_verify_chip(struct iio
 {
 	int ret, val;
 
-	ret = ds4424_get_value(indio_dev, &val, DS4424_DAC_ADDR(0));
+	ret = ds4424_get_value(indio_dev, &val, 0);
 	if (ret < 0)
 		dev_err(&indio_dev->dev,
 				"%s failed. ret: %d\n", __func__, ret);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c linux-libre-5.1.21-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
--- linux-libre-5.1-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -471,7 +471,10 @@ inv_mpu6050_read_raw(struct iio_dev *ind
 			return IIO_VAL_INT_PLUS_MICRO;
 		case IIO_TEMP:
 			*val = 0;
-			*val2 = INV_MPU6050_TEMP_SCALE;
+			if (st->chip_type == INV_ICM20602)
+				*val2 = INV_ICM20602_TEMP_SCALE;
+			else
+				*val2 = INV_MPU6050_TEMP_SCALE;
 
 			return IIO_VAL_INT_PLUS_MICRO;
 		default:
@@ -480,7 +483,10 @@ inv_mpu6050_read_raw(struct iio_dev *ind
 	case IIO_CHAN_INFO_OFFSET:
 		switch (chan->type) {
 		case IIO_TEMP:
-			*val = INV_MPU6050_TEMP_OFFSET;
+			if (st->chip_type == INV_ICM20602)
+				*val = INV_ICM20602_TEMP_OFFSET;
+			else
+				*val = INV_MPU6050_TEMP_OFFSET;
 
 			return IIO_VAL_INT;
 		default:
@@ -845,6 +851,32 @@ static const struct iio_chan_spec inv_mp
 	INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Z, INV_MPU6050_SCAN_ACCL_Z),
 };
 
+static const struct iio_chan_spec inv_icm20602_channels[] = {
+	IIO_CHAN_SOFT_TIMESTAMP(INV_ICM20602_SCAN_TIMESTAMP),
+	{
+		.type = IIO_TEMP,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
+				| BIT(IIO_CHAN_INFO_OFFSET)
+				| BIT(IIO_CHAN_INFO_SCALE),
+		.scan_index = INV_ICM20602_SCAN_TEMP,
+		.scan_type = {
+				.sign = 's',
+				.realbits = 16,
+				.storagebits = 16,
+				.shift = 0,
+				.endianness = IIO_BE,
+			     },
+	},
+
+	INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_ICM20602_SCAN_GYRO_X),
+	INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_ICM20602_SCAN_GYRO_Y),
+	INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_ICM20602_SCAN_GYRO_Z),
+
+	INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Y, INV_ICM20602_SCAN_ACCL_Y),
+	INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_X, INV_ICM20602_SCAN_ACCL_X),
+	INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Z, INV_ICM20602_SCAN_ACCL_Z),
+};
+
 /*
  * The user can choose any frequency between INV_MPU6050_MIN_FIFO_RATE and
  * INV_MPU6050_MAX_FIFO_RATE, but only these frequencies are matched by the
@@ -1100,8 +1132,14 @@ int inv_mpu_core_probe(struct regmap *re
 		indio_dev->name = name;
 	else
 		indio_dev->name = dev_name(dev);
-	indio_dev->channels = inv_mpu_channels;
-	indio_dev->num_channels = ARRAY_SIZE(inv_mpu_channels);
+
+	if (chip_type == INV_ICM20602) {
+		indio_dev->channels = inv_icm20602_channels;
+		indio_dev->num_channels = ARRAY_SIZE(inv_icm20602_channels);
+	} else {
+		indio_dev->channels = inv_mpu_channels;
+		indio_dev->num_channels = ARRAY_SIZE(inv_mpu_channels);
+	}
 
 	indio_dev->info = &mpu_info;
 	indio_dev->modes = INDIO_BUFFER_TRIGGERED;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h linux-libre-5.1.21-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
--- linux-libre-5.1-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h	2019-07-28 02:28:39.000000000 -0400
@@ -208,6 +208,9 @@ struct inv_mpu6050_state {
 #define INV_MPU6050_BYTES_PER_3AXIS_SENSOR   6
 #define INV_MPU6050_FIFO_COUNT_BYTE          2
 
+/* ICM20602 FIFO samples include temperature readings */
+#define INV_ICM20602_BYTES_PER_TEMP_SENSOR   2
+
 /* mpu6500 registers */
 #define INV_MPU6500_REG_ACCEL_CONFIG_2      0x1D
 #define INV_MPU6500_REG_ACCEL_OFFSET        0x77
@@ -229,6 +232,9 @@ struct inv_mpu6050_state {
 #define INV_MPU6050_GYRO_CONFIG_FSR_SHIFT    3
 #define INV_MPU6050_ACCL_CONFIG_FSR_SHIFT    3
 
+#define INV_ICM20602_TEMP_OFFSET	     8170
+#define INV_ICM20602_TEMP_SCALE		     3060
+
 /* 6 + 6 round up and plus 8 */
 #define INV_MPU6050_OUTPUT_DATA_SIZE         24
 
@@ -270,7 +276,7 @@ struct inv_mpu6050_state {
 #define INV_ICM20608_WHOAMI_VALUE		0xAF
 #define INV_ICM20602_WHOAMI_VALUE		0x12
 
-/* scan element definition */
+/* scan element definition for generic MPU6xxx devices */
 enum inv_mpu6050_scan {
 	INV_MPU6050_SCAN_ACCL_X,
 	INV_MPU6050_SCAN_ACCL_Y,
@@ -281,6 +287,18 @@ enum inv_mpu6050_scan {
 	INV_MPU6050_SCAN_TIMESTAMP,
 };
 
+/* scan element definition for ICM20602, which includes temperature */
+enum inv_icm20602_scan {
+	INV_ICM20602_SCAN_ACCL_X,
+	INV_ICM20602_SCAN_ACCL_Y,
+	INV_ICM20602_SCAN_ACCL_Z,
+	INV_ICM20602_SCAN_TEMP,
+	INV_ICM20602_SCAN_GYRO_X,
+	INV_ICM20602_SCAN_GYRO_Y,
+	INV_ICM20602_SCAN_GYRO_Z,
+	INV_ICM20602_SCAN_TIMESTAMP,
+};
+
 enum inv_mpu6050_filter_e {
 	INV_MPU6050_FILTER_256HZ_NOLPF2 = 0,
 	INV_MPU6050_FILTER_188HZ,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c linux-libre-5.1.21-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
--- linux-libre-5.1-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c	2019-07-28 02:28:39.000000000 -0400
@@ -207,6 +207,9 @@ irqreturn_t inv_mpu6050_read_fifo(int ir
 	if (st->chip_config.gyro_fifo_enable)
 		bytes_per_datum += INV_MPU6050_BYTES_PER_3AXIS_SENSOR;
 
+	if (st->chip_type == INV_ICM20602)
+		bytes_per_datum += INV_ICM20602_BYTES_PER_TEMP_SENSOR;
+
 	/*
 	 * read fifo_count register to know how many bytes are inside the FIFO
 	 * right now
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c linux-libre-5.1.21-gnu/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
--- linux-libre-5.1-gnu/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -1023,8 +1023,6 @@ static int __maybe_unused st_lsm6dsx_sus
 {
 	struct st_lsm6dsx_hw *hw = dev_get_drvdata(dev);
 	struct st_lsm6dsx_sensor *sensor;
-	const struct st_lsm6dsx_reg *reg;
-	unsigned int data;
 	int i, err = 0;
 
 	for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) {
@@ -1035,12 +1033,16 @@ static int __maybe_unused st_lsm6dsx_sus
 		if (!(hw->enable_mask & BIT(sensor->id)))
 			continue;
 
-		reg = &st_lsm6dsx_odr_table[sensor->id].reg;
-		data = ST_LSM6DSX_SHIFT_VAL(0, reg->mask);
-		err = st_lsm6dsx_update_bits_locked(hw, reg->addr, reg->mask,
-						    data);
+		if (sensor->id == ST_LSM6DSX_ID_EXT0 ||
+		    sensor->id == ST_LSM6DSX_ID_EXT1 ||
+		    sensor->id == ST_LSM6DSX_ID_EXT2)
+			err = st_lsm6dsx_shub_set_enable(sensor, false);
+		else
+			err = st_lsm6dsx_sensor_set_enable(sensor, false);
 		if (err < 0)
 			return err;
+
+		hw->suspend_mask |= BIT(sensor->id);
 	}
 
 	if (hw->fifo_mode != ST_LSM6DSX_FIFO_BYPASS)
@@ -1060,12 +1062,19 @@ static int __maybe_unused st_lsm6dsx_res
 			continue;
 
 		sensor = iio_priv(hw->iio_devs[i]);
-		if (!(hw->enable_mask & BIT(sensor->id)))
+		if (!(hw->suspend_mask & BIT(sensor->id)))
 			continue;
 
-		err = st_lsm6dsx_set_odr(sensor, sensor->odr);
+		if (sensor->id == ST_LSM6DSX_ID_EXT0 ||
+		    sensor->id == ST_LSM6DSX_ID_EXT1 ||
+		    sensor->id == ST_LSM6DSX_ID_EXT2)
+			err = st_lsm6dsx_shub_set_enable(sensor, true);
+		else
+			err = st_lsm6dsx_sensor_set_enable(sensor, true);
 		if (err < 0)
 			return err;
+
+		hw->suspend_mask &= ~BIT(sensor->id);
 	}
 
 	if (hw->enable_mask)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h linux-libre-5.1.21-gnu/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
--- linux-libre-5.1-gnu/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h	2019-07-28 02:28:39.000000000 -0400
@@ -265,6 +265,7 @@ struct st_lsm6dsx_sensor {
  * @conf_lock: Mutex to prevent concurrent FIFO configuration update.
  * @page_lock: Mutex to prevent concurrent memory page configuration.
  * @fifo_mode: FIFO operating mode supported by the device.
+ * @suspend_mask: Suspended sensor bitmask.
  * @enable_mask: Enabled sensor bitmask.
  * @ts_sip: Total number of timestamp samples in a given pattern.
  * @sip: Total number of samples (acc/gyro/ts) in a given pattern.
@@ -282,6 +283,7 @@ struct st_lsm6dsx_hw {
 	struct mutex page_lock;
 
 	enum st_lsm6dsx_fifo_mode fifo_mode;
+	u8 suspend_mask;
 	u8 enable_mask;
 	u8 ts_sip;
 	u8 sip;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/magnetometer/hmc5843_i2c.c linux-libre-5.1.21-gnu/drivers/iio/magnetometer/hmc5843_i2c.c
--- linux-libre-5.1-gnu/drivers/iio/magnetometer/hmc5843_i2c.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/magnetometer/hmc5843_i2c.c	2019-07-28 02:28:39.000000000 -0400
@@ -58,8 +58,13 @@ static const struct regmap_config hmc584
 static int hmc5843_i2c_probe(struct i2c_client *cli,
 			     const struct i2c_device_id *id)
 {
+	struct regmap *regmap = devm_regmap_init_i2c(cli,
+			&hmc5843_i2c_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
 	return hmc5843_common_probe(&cli->dev,
-			devm_regmap_init_i2c(cli, &hmc5843_i2c_regmap_config),
+			regmap,
 			id->driver_data, id->name);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/magnetometer/hmc5843_spi.c linux-libre-5.1.21-gnu/drivers/iio/magnetometer/hmc5843_spi.c
--- linux-libre-5.1-gnu/drivers/iio/magnetometer/hmc5843_spi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/magnetometer/hmc5843_spi.c	2019-07-28 02:28:39.000000000 -0400
@@ -58,6 +58,7 @@ static const struct regmap_config hmc584
 static int hmc5843_spi_probe(struct spi_device *spi)
 {
 	int ret;
+	struct regmap *regmap;
 	const struct spi_device_id *id = spi_get_device_id(spi);
 
 	spi->mode = SPI_MODE_3;
@@ -67,8 +68,12 @@ static int hmc5843_spi_probe(struct spi_
 	if (ret)
 		return ret;
 
+	regmap = devm_regmap_init_spi(spi, &hmc5843_spi_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
 	return hmc5843_common_probe(&spi->dev,
-			devm_regmap_init_spi(spi, &hmc5843_spi_regmap_config),
+			regmap,
 			id->driver_data, id->name);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iio/temperature/mlx90632.c linux-libre-5.1.21-gnu/drivers/iio/temperature/mlx90632.c
--- linux-libre-5.1-gnu/drivers/iio/temperature/mlx90632.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iio/temperature/mlx90632.c	2019-07-28 02:28:39.000000000 -0400
@@ -81,6 +81,8 @@
 /* Magic constants */
 #define MLX90632_ID_MEDICAL	0x0105 /* EEPROM DSPv5 Medical device id */
 #define MLX90632_ID_CONSUMER	0x0205 /* EEPROM DSPv5 Consumer device id */
+#define MLX90632_DSP_VERSION	5 /* DSP version */
+#define MLX90632_DSP_MASK	GENMASK(7, 0) /* DSP version in EE_VERSION */
 #define MLX90632_RESET_CMD	0x0006 /* Reset sensor (address or global) */
 #define MLX90632_REF_12		12LL /**< ResCtrlRef value of Ch 1 or Ch 2 */
 #define MLX90632_REF_3		12LL /**< ResCtrlRef value of Channel 3 */
@@ -667,10 +669,13 @@ static int mlx90632_probe(struct i2c_cli
 	} else if (read == MLX90632_ID_CONSUMER) {
 		dev_dbg(&client->dev,
 			"Detected Consumer EEPROM calibration %x\n", read);
+	} else if ((read & MLX90632_DSP_MASK) == MLX90632_DSP_VERSION) {
+		dev_dbg(&client->dev,
+			"Detected Unknown EEPROM calibration %x\n", read);
 	} else {
 		dev_err(&client->dev,
-			"EEPROM version mismatch %x (expected %x or %x)\n",
-			read, MLX90632_ID_CONSUMER, MLX90632_ID_MEDICAL);
+			"Wrong DSP version %x (expected %x)\n",
+			read, MLX90632_DSP_VERSION);
 		return -EPROTONOSUPPORT;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/core/addr.c linux-libre-5.1.21-gnu/drivers/infiniband/core/addr.c
--- linux-libre-5.1-gnu/drivers/infiniband/core/addr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/core/addr.c	2019-07-28 02:28:39.000000000 -0400
@@ -730,8 +730,8 @@ int roce_resolve_route_from_path(struct
 	if (rec->roce.route_resolved)
 		return 0;
 
-	rdma_gid2ip(&sgid._sockaddr, &rec->sgid);
-	rdma_gid2ip(&dgid._sockaddr, &rec->dgid);
+	rdma_gid2ip((struct sockaddr *)&sgid, &rec->sgid);
+	rdma_gid2ip((struct sockaddr *)&dgid, &rec->dgid);
 
 	if (sgid._sockaddr.sa_family != dgid._sockaddr.sa_family)
 		return -EINVAL;
@@ -742,7 +742,7 @@ int roce_resolve_route_from_path(struct
 	dev_addr.net = &init_net;
 	dev_addr.sgid_attr = attr;
 
-	ret = addr_resolve(&sgid._sockaddr, &dgid._sockaddr,
+	ret = addr_resolve((struct sockaddr *)&sgid, (struct sockaddr *)&dgid,
 			   &dev_addr, false, true, 0);
 	if (ret)
 		return ret;
@@ -814,22 +814,22 @@ int rdma_addr_find_l2_eth_by_grh(const u
 	struct rdma_dev_addr dev_addr;
 	struct resolve_cb_context ctx;
 	union {
-		struct sockaddr     _sockaddr;
 		struct sockaddr_in  _sockaddr_in;
 		struct sockaddr_in6 _sockaddr_in6;
 	} sgid_addr, dgid_addr;
 	int ret;
 
-	rdma_gid2ip(&sgid_addr._sockaddr, sgid);
-	rdma_gid2ip(&dgid_addr._sockaddr, dgid);
+	rdma_gid2ip((struct sockaddr *)&sgid_addr, sgid);
+	rdma_gid2ip((struct sockaddr *)&dgid_addr, dgid);
 
 	memset(&dev_addr, 0, sizeof(dev_addr));
 	dev_addr.net = &init_net;
 	dev_addr.sgid_attr = sgid_attr;
 
 	init_completion(&ctx.comp);
-	ret = rdma_resolve_ip(&sgid_addr._sockaddr, &dgid_addr._sockaddr,
-			      &dev_addr, 1000, resolve_cb, true, &ctx);
+	ret = rdma_resolve_ip((struct sockaddr *)&sgid_addr,
+			      (struct sockaddr *)&dgid_addr, &dev_addr, 1000,
+			      resolve_cb, true, &ctx);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/core/cma.c linux-libre-5.1.21-gnu/drivers/infiniband/core/cma.c
--- linux-libre-5.1-gnu/drivers/infiniband/core/cma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/core/cma.c	2019-07-28 02:28:39.000000000 -0400
@@ -1173,18 +1173,31 @@ static inline bool cma_any_addr(const st
 	return cma_zero_addr(addr) || cma_loopback_addr(addr);
 }
 
-static int cma_addr_cmp(struct sockaddr *src, struct sockaddr *dst)
+static int cma_addr_cmp(const struct sockaddr *src, const struct sockaddr *dst)
 {
 	if (src->sa_family != dst->sa_family)
 		return -1;
 
 	switch (src->sa_family) {
 	case AF_INET:
-		return ((struct sockaddr_in *) src)->sin_addr.s_addr !=
-		       ((struct sockaddr_in *) dst)->sin_addr.s_addr;
-	case AF_INET6:
-		return ipv6_addr_cmp(&((struct sockaddr_in6 *) src)->sin6_addr,
-				     &((struct sockaddr_in6 *) dst)->sin6_addr);
+		return ((struct sockaddr_in *)src)->sin_addr.s_addr !=
+		       ((struct sockaddr_in *)dst)->sin_addr.s_addr;
+	case AF_INET6: {
+		struct sockaddr_in6 *src_addr6 = (struct sockaddr_in6 *)src;
+		struct sockaddr_in6 *dst_addr6 = (struct sockaddr_in6 *)dst;
+		bool link_local;
+
+		if (ipv6_addr_cmp(&src_addr6->sin6_addr,
+					  &dst_addr6->sin6_addr))
+			return 1;
+		link_local = ipv6_addr_type(&dst_addr6->sin6_addr) &
+			     IPV6_ADDR_LINKLOCAL;
+		/* Link local must match their scope_ids */
+		return link_local ? (src_addr6->sin6_scope_id !=
+				     dst_addr6->sin6_scope_id) :
+				    0;
+	}
+
 	default:
 		return ib_addr_cmp(&((struct sockaddr_ib *) src)->sib_addr,
 				   &((struct sockaddr_ib *) dst)->sib_addr);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/cxgb4/cm.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/cxgb4/cm.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/cxgb4/cm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/cxgb4/cm.c	2019-07-28 02:28:39.000000000 -0400
@@ -457,6 +457,8 @@ static struct sk_buff *get_skb(struct sk
 		skb_reset_transport_header(skb);
 	} else {
 		skb = alloc_skb(len, gfp);
+		if (!skb)
+			return NULL;
 	}
 	t4_set_arp_err_handler(skb, NULL, NULL);
 	return skb;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/chip.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/chip.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/chip.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/chip.c	2019-07-28 02:28:39.000000000 -0400
@@ -9848,6 +9848,7 @@ void hfi1_quiet_serdes(struct hfi1_pport
 
 	/* disable the port */
 	clear_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK);
+	cancel_work_sync(&ppd->freeze_work);
 }
 
 static inline int init_cpu_counters(struct hfi1_devdata *dd)
@@ -14028,6 +14029,19 @@ static void init_kdeth_qp(struct hfi1_de
 }
 
 /**
+ * hfi1_get_qp_map
+ * @dd: device data
+ * @idx: index to read
+ */
+u8 hfi1_get_qp_map(struct hfi1_devdata *dd, u8 idx)
+{
+	u64 reg = read_csr(dd, RCV_QP_MAP_TABLE + (idx / 8) * 8);
+
+	reg >>= (idx % 8) * 8;
+	return reg;
+}
+
+/**
  * init_qpmap_table
  * @dd - device data
  * @first_ctxt - first context
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/chip.h linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/chip.h
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/chip.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/chip.h	2019-07-28 02:28:39.000000000 -0400
@@ -1442,6 +1442,7 @@ void clear_all_interrupts(struct hfi1_de
 void remap_intr(struct hfi1_devdata *dd, int isrc, int msix_intr);
 void remap_sdma_interrupts(struct hfi1_devdata *dd, int engine, int msix_intr);
 void reset_interrupts(struct hfi1_devdata *dd);
+u8 hfi1_get_qp_map(struct hfi1_devdata *dd, u8 idx);
 
 /*
  * Interrupt source table.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/fault.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/fault.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/fault.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/fault.c	2019-07-28 02:28:39.000000000 -0400
@@ -153,6 +153,7 @@ static ssize_t fault_opcodes_write(struc
 		char *dash;
 		unsigned long range_start, range_end, i;
 		bool remove = false;
+		unsigned long bound = 1U << BITS_PER_BYTE;
 
 		end = strchr(ptr, ',');
 		if (end)
@@ -178,6 +179,10 @@ static ssize_t fault_opcodes_write(struc
 				    BITS_PER_BYTE);
 			break;
 		}
+		/* Check the inputs */
+		if (range_start >= bound || range_end >= bound)
+			break;
+
 		for (i = range_start; i <= range_end; i++) {
 			if (remove)
 				clear_bit(i, fault->opcodes);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/hfi.h linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/hfi.h
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/hfi.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/hfi.h	2019-07-28 02:28:39.000000000 -0400
@@ -539,6 +539,37 @@ static inline void hfi1_16B_set_qpn(stru
 	mgmt->src_qpn = cpu_to_be32(src_qp & OPA_16B_MGMT_QPN_MASK);
 }
 
+/**
+ * hfi1_get_rc_ohdr - get extended header
+ * @opah - the opaheader
+ */
+static inline struct ib_other_headers *
+hfi1_get_rc_ohdr(struct hfi1_opa_header *opah)
+{
+	struct ib_other_headers *ohdr;
+	struct ib_header *hdr = NULL;
+	struct hfi1_16b_header *hdr_16b = NULL;
+
+	/* Find out where the BTH is */
+	if (opah->hdr_type == HFI1_PKT_TYPE_9B) {
+		hdr = &opah->ibh;
+		if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
+			ohdr = &hdr->u.oth;
+		else
+			ohdr = &hdr->u.l.oth;
+	} else {
+		u8 l4;
+
+		hdr_16b = &opah->opah;
+		l4  = hfi1_16B_get_l4(hdr_16b);
+		if (l4 == OPA_16B_L4_IB_LOCAL)
+			ohdr = &hdr_16b->u.oth;
+		else
+			ohdr = &hdr_16b->u.l.oth;
+	}
+	return ohdr;
+}
+
 struct rvt_sge_state;
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/init.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/init.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/init.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/init.c	2019-07-28 02:28:39.000000000 -0400
@@ -805,7 +805,8 @@ static int create_workqueues(struct hfi1
 			ppd->hfi1_wq =
 				alloc_workqueue(
 				    "hfi%d_%d",
-				    WQ_SYSFS | WQ_HIGHPRI | WQ_CPU_INTENSIVE,
+				    WQ_SYSFS | WQ_HIGHPRI | WQ_CPU_INTENSIVE |
+				    WQ_MEM_RECLAIM,
 				    HFI1_MAX_ACTIVE_WORKQUEUE_ENTRIES,
 				    dd->unit, pidx);
 			if (!ppd->hfi1_wq)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/pio.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/pio.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/pio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/pio.c	2019-07-28 02:28:39.000000000 -0400
@@ -952,6 +952,22 @@ void sc_disable(struct send_context *sc)
 		}
 	}
 	spin_unlock(&sc->release_lock);
+
+	write_seqlock(&sc->waitlock);
+	while (!list_empty(&sc->piowait)) {
+		struct iowait *wait;
+		struct rvt_qp *qp;
+		struct hfi1_qp_priv *priv;
+
+		wait = list_first_entry(&sc->piowait, struct iowait, list);
+		qp = iowait_to_qp(wait);
+		priv = qp->priv;
+		list_del_init(&priv->s_iowait.list);
+		priv->s_iowait.lock = NULL;
+		hfi1_qp_wakeup(qp, RVT_S_WAIT_PIO | HFI1_S_WAIT_PIO_DRAIN);
+	}
+	write_sequnlock(&sc->waitlock);
+
 	spin_unlock_irq(&sc->alloc_lock);
 }
 
@@ -1427,7 +1443,8 @@ void sc_stop(struct send_context *sc, in
  * @cb: optional callback to call when the buffer is finished sending
  * @arg: argument for cb
  *
- * Return a pointer to a PIO buffer if successful, NULL if not enough room.
+ * Return a pointer to a PIO buffer, NULL if not enough room, -ECOMM
+ * when link is down.
  */
 struct pio_buf *sc_buffer_alloc(struct send_context *sc, u32 dw_len,
 				pio_release_cb cb, void *arg)
@@ -1443,7 +1460,7 @@ struct pio_buf *sc_buffer_alloc(struct s
 	spin_lock_irqsave(&sc->alloc_lock, flags);
 	if (!(sc->flags & SCF_ENABLED)) {
 		spin_unlock_irqrestore(&sc->alloc_lock, flags);
-		goto done;
+		return ERR_PTR(-ECOMM);
 	}
 
 retry:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/rc.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/rc.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/rc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/rc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1434,7 +1434,7 @@ void hfi1_send_rc_ack(struct hfi1_packet
 	pbc = create_pbc(ppd, pbc_flags, qp->srate_mbps,
 			 sc_to_vlt(ppd->dd, sc5), plen);
 	pbuf = sc_buffer_alloc(rcd->sc, plen, NULL, NULL);
-	if (!pbuf) {
+	if (IS_ERR_OR_NULL(pbuf)) {
 		/*
 		 * We have no room to send at the moment.  Pass
 		 * responsibility for sending the ACK to the send engine
@@ -1703,6 +1703,36 @@ static void reset_sending_psn(struct rvt
 	}
 }
 
+/**
+ * hfi1_rc_verbs_aborted - handle abort status
+ * @qp: the QP
+ * @opah: the opa header
+ *
+ * This code modifies both ACK bit in BTH[2]
+ * and the s_flags to go into send one mode.
+ *
+ * This serves to throttle the send engine to only
+ * send a single packet in the likely case the
+ * a link has gone down.
+ */
+void hfi1_rc_verbs_aborted(struct rvt_qp *qp, struct hfi1_opa_header *opah)
+{
+	struct ib_other_headers *ohdr = hfi1_get_rc_ohdr(opah);
+	u8 opcode = ib_bth_get_opcode(ohdr);
+	u32 psn;
+
+	/* ignore responses */
+	if ((opcode >= OP(RDMA_READ_RESPONSE_FIRST) &&
+	     opcode <= OP(ATOMIC_ACKNOWLEDGE)) ||
+	    opcode == TID_OP(READ_RESP) ||
+	    opcode == TID_OP(WRITE_RESP))
+		return;
+
+	psn = ib_bth_get_psn(ohdr) | IB_BTH_REQ_ACK;
+	ohdr->bth[2] = cpu_to_be32(psn);
+	qp->s_flags |= RVT_S_SEND_ONE;
+}
+
 /*
  * This should be called with the QP s_lock held and interrupts disabled.
  */
@@ -1711,8 +1741,6 @@ void hfi1_rc_send_complete(struct rvt_qp
 	struct ib_other_headers *ohdr;
 	struct hfi1_qp_priv *priv = qp->priv;
 	struct rvt_swqe *wqe;
-	struct ib_header *hdr = NULL;
-	struct hfi1_16b_header *hdr_16b = NULL;
 	u32 opcode, head, tail;
 	u32 psn;
 	struct tid_rdma_request *req;
@@ -1721,24 +1749,7 @@ void hfi1_rc_send_complete(struct rvt_qp
 	if (!(ib_rvt_state_ops[qp->state] & RVT_SEND_OR_FLUSH_OR_RECV_OK))
 		return;
 
-	/* Find out where the BTH is */
-	if (priv->hdr_type == HFI1_PKT_TYPE_9B) {
-		hdr = &opah->ibh;
-		if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
-			ohdr = &hdr->u.oth;
-		else
-			ohdr = &hdr->u.l.oth;
-	} else {
-		u8 l4;
-
-		hdr_16b = &opah->opah;
-		l4  = hfi1_16B_get_l4(hdr_16b);
-		if (l4 == OPA_16B_L4_IB_LOCAL)
-			ohdr = &hdr_16b->u.oth;
-		else
-			ohdr = &hdr_16b->u.l.oth;
-	}
-
+	ohdr = hfi1_get_rc_ohdr(opah);
 	opcode = ib_bth_get_opcode(ohdr);
 	if ((opcode >= OP(RDMA_READ_RESPONSE_FIRST) &&
 	     opcode <= OP(ATOMIC_ACKNOWLEDGE)) ||
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/sdma.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/sdma.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/sdma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/sdma.c	2019-07-28 02:28:39.000000000 -0400
@@ -405,19 +405,33 @@ static void sdma_flush(struct sdma_engin
 	struct sdma_txreq *txp, *txp_next;
 	LIST_HEAD(flushlist);
 	unsigned long flags;
+	uint seq;
 
 	/* flush from head to tail */
 	sdma_flush_descq(sde);
 	spin_lock_irqsave(&sde->flushlist_lock, flags);
 	/* copy flush list */
-	list_for_each_entry_safe(txp, txp_next, &sde->flushlist, list) {
-		list_del_init(&txp->list);
-		list_add_tail(&txp->list, &flushlist);
-	}
+	list_splice_init(&sde->flushlist, &flushlist);
 	spin_unlock_irqrestore(&sde->flushlist_lock, flags);
 	/* flush from flush list */
 	list_for_each_entry_safe(txp, txp_next, &flushlist, list)
 		complete_tx(sde, txp, SDMA_TXREQ_S_ABORTED);
+	/* wakeup QPs orphaned on the dmawait list */
+	do {
+		struct iowait *w, *nw;
+
+		seq = read_seqbegin(&sde->waitlock);
+		if (!list_empty(&sde->dmawait)) {
+			write_seqlock(&sde->waitlock);
+			list_for_each_entry_safe(w, nw, &sde->dmawait, list) {
+				if (w->wakeup) {
+					w->wakeup(w, SDMA_AVAIL_REASON);
+					list_del_init(&w->list);
+				}
+			}
+			write_sequnlock(&sde->waitlock);
+		}
+	} while (read_seqretry(&sde->waitlock, seq));
 }
 
 /*
@@ -2413,7 +2427,7 @@ unlock_noconn:
 	list_add_tail(&tx->list, &sde->flushlist);
 	spin_unlock(&sde->flushlist_lock);
 	iowait_inc_wait_count(wait, tx->num_desc);
-	schedule_work(&sde->flush_worker);
+	queue_work_on(sde->cpu, system_highpri_wq, &sde->flush_worker);
 	ret = -ECOMM;
 	goto unlock;
 nodesc:
@@ -2511,7 +2525,7 @@ unlock_noconn:
 		iowait_inc_wait_count(wait, tx->num_desc);
 	}
 	spin_unlock(&sde->flushlist_lock);
-	schedule_work(&sde->flush_worker);
+	queue_work_on(sde->cpu, system_highpri_wq, &sde->flush_worker);
 	ret = -ECOMM;
 	goto update_tail;
 nodesc:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/tid_rdma.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/tid_rdma.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/tid_rdma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/tid_rdma.c	2019-07-28 02:28:39.000000000 -0400
@@ -305,9 +305,7 @@ static struct hfi1_ctxtdata *qp_to_rcd(s
 	if (qp->ibqp.qp_num == 0)
 		ctxt = 0;
 	else
-		ctxt = ((qp->ibqp.qp_num >> dd->qos_shift) %
-			(dd->n_krcv_queues - 1)) + 1;
-
+		ctxt = hfi1_get_qp_map(dd, qp->ibqp.qp_num >> dd->qos_shift);
 	return dd->rcd[ctxt];
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/ud.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/ud.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/ud.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/ud.c	2019-07-28 02:28:39.000000000 -0400
@@ -683,7 +683,7 @@ void return_cnp_16B(struct hfi1_ibport *
 	pbc = create_pbc(ppd, pbc_flags, qp->srate_mbps, vl, plen);
 	if (ctxt) {
 		pbuf = sc_buffer_alloc(ctxt, plen, NULL, NULL);
-		if (pbuf) {
+		if (!IS_ERR_OR_NULL(pbuf)) {
 			trace_pio_output_ibhdr(ppd->dd, &hdr, sc5);
 			ppd->dd->pio_inline_send(ppd->dd, pbuf, pbc,
 						 &hdr, hwords);
@@ -738,7 +738,7 @@ void return_cnp(struct hfi1_ibport *ibp,
 	pbc = create_pbc(ppd, pbc_flags, qp->srate_mbps, vl, plen);
 	if (ctxt) {
 		pbuf = sc_buffer_alloc(ctxt, plen, NULL, NULL);
-		if (pbuf) {
+		if (!IS_ERR_OR_NULL(pbuf)) {
 			trace_pio_output_ibhdr(ppd->dd, &hdr, sc5);
 			ppd->dd->pio_inline_send(ppd->dd, pbuf, pbc,
 						 &hdr, hwords);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.c	2019-07-28 02:28:39.000000000 -0400
@@ -324,6 +324,9 @@ int hfi1_user_exp_rcv_setup(struct hfi1_
 	u32 *tidlist = NULL;
 	struct tid_user_buf *tidbuf;
 
+	if (!PAGE_ALIGNED(tinfo->vaddr))
+		return -EINVAL;
+
 	tidbuf = kzalloc(sizeof(*tidbuf), GFP_KERNEL);
 	if (!tidbuf)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/user_sdma.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/user_sdma.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/user_sdma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/user_sdma.c	2019-07-28 02:28:39.000000000 -0400
@@ -130,20 +130,16 @@ static int defer_packet_queue(
 {
 	struct hfi1_user_sdma_pkt_q *pq =
 		container_of(wait->iow, struct hfi1_user_sdma_pkt_q, busy);
-	struct user_sdma_txreq *tx =
-		container_of(txreq, struct user_sdma_txreq, txreq);
 
-	if (sdma_progress(sde, seq, txreq)) {
-		if (tx->busycount++ < MAX_DEFER_RETRY_COUNT)
-			goto eagain;
-	}
+	write_seqlock(&sde->waitlock);
+	if (sdma_progress(sde, seq, txreq))
+		goto eagain;
 	/*
 	 * We are assuming that if the list is enqueued somewhere, it
 	 * is to the dmawait list since that is the only place where
 	 * it is supposed to be enqueued.
 	 */
 	xchg(&pq->state, SDMA_PKT_Q_DEFERRED);
-	write_seqlock(&sde->waitlock);
 	if (list_empty(&pq->busy.list)) {
 		iowait_get_priority(&pq->busy);
 		iowait_queue(pkts_sent, &pq->busy, &sde->dmawait);
@@ -151,6 +147,7 @@ static int defer_packet_queue(
 	write_sequnlock(&sde->waitlock);
 	return -EBUSY;
 eagain:
+	write_sequnlock(&sde->waitlock);
 	return -EAGAIN;
 }
 
@@ -804,7 +801,6 @@ static int user_sdma_send_pkts(struct us
 
 		tx->flags = 0;
 		tx->req = req;
-		tx->busycount = 0;
 		INIT_LIST_HEAD(&tx->list);
 
 		/*
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/user_sdma.h linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/user_sdma.h
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/user_sdma.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/user_sdma.h	2019-07-28 02:28:39.000000000 -0400
@@ -245,7 +245,6 @@ struct user_sdma_txreq {
 	struct list_head list;
 	struct user_sdma_request *req;
 	u16 flags;
-	unsigned int busycount;
 	u16 seqnum;
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/verbs.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/verbs.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/verbs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/verbs.c	2019-07-28 02:28:39.000000000 -0400
@@ -638,6 +638,8 @@ static void verbs_sdma_complete(
 		struct hfi1_opa_header *hdr;
 
 		hdr = &tx->phdr.hdr;
+		if (unlikely(status == SDMA_TXREQ_S_ABORTED))
+			hfi1_rc_verbs_aborted(qp, hdr);
 		hfi1_rc_send_complete(qp, hdr);
 	}
 	spin_unlock(&qp->s_lock);
@@ -1037,10 +1039,10 @@ int hfi1_verbs_send_pio(struct rvt_qp *q
 	if (cb)
 		iowait_pio_inc(&priv->s_iowait);
 	pbuf = sc_buffer_alloc(sc, plen, cb, qp);
-	if (unlikely(!pbuf)) {
+	if (unlikely(IS_ERR_OR_NULL(pbuf))) {
 		if (cb)
 			verbs_pio_complete(qp, 0);
-		if (ppd->host_link_state != HLS_UP_ACTIVE) {
+		if (IS_ERR(pbuf)) {
 			/*
 			 * If we have filled the PIO buffers to capacity and are
 			 * not in an active state this request is not going to
@@ -1095,15 +1097,15 @@ int hfi1_verbs_send_pio(struct rvt_qp *q
 			       &ps->s_txreq->phdr.hdr, ib_is_sc5(sc5));
 
 pio_bail:
+	spin_lock_irqsave(&qp->s_lock, flags);
 	if (qp->s_wqe) {
-		spin_lock_irqsave(&qp->s_lock, flags);
 		rvt_send_complete(qp, qp->s_wqe, wc_status);
-		spin_unlock_irqrestore(&qp->s_lock, flags);
 	} else if (qp->ibqp.qp_type == IB_QPT_RC) {
-		spin_lock_irqsave(&qp->s_lock, flags);
+		if (unlikely(wc_status == IB_WC_GENERAL_ERR))
+			hfi1_rc_verbs_aborted(qp, &ps->s_txreq->phdr.hdr);
 		hfi1_rc_send_complete(qp, &ps->s_txreq->phdr.hdr);
-		spin_unlock_irqrestore(&qp->s_lock, flags);
 	}
+	spin_unlock_irqrestore(&qp->s_lock, flags);
 
 	ret = 0;
 
@@ -1355,8 +1357,6 @@ static void hfi1_fill_device_attr(struct
 	rdi->dparms.props.max_cq = hfi1_max_cqs;
 	rdi->dparms.props.max_ah = hfi1_max_ahs;
 	rdi->dparms.props.max_cqe = hfi1_max_cqes;
-	rdi->dparms.props.max_mr = rdi->lkey_table.max;
-	rdi->dparms.props.max_fmr = rdi->lkey_table.max;
 	rdi->dparms.props.max_map_per_fmr = 32767;
 	rdi->dparms.props.max_pd = hfi1_max_pds;
 	rdi->dparms.props.max_qp_rd_atom = HFI1_MAX_RDMA_ATOMIC;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/verbs.h linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/verbs.h
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/verbs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/verbs.h	2019-07-28 02:28:39.000000000 -0400
@@ -415,6 +415,7 @@ void hfi1_rc_hdrerr(
 
 u8 ah_to_sc(struct ib_device *ibdev, struct rdma_ah_attr *ah_attr);
 
+void hfi1_rc_verbs_aborted(struct rvt_qp *qp, struct hfi1_opa_header *opah);
 void hfi1_rc_send_complete(struct rvt_qp *qp, struct hfi1_opa_header *opah);
 
 void hfi1_ud_rcv(struct hfi1_packet *packet);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/verbs_txreq.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/verbs_txreq.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/verbs_txreq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/verbs_txreq.c	2019-07-28 02:28:39.000000000 -0400
@@ -100,7 +100,7 @@ struct verbs_txreq *__get_txreq(struct h
 	if (ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK) {
 		struct hfi1_qp_priv *priv;
 
-		tx = kmem_cache_alloc(dev->verbs_txreq_cache, GFP_ATOMIC);
+		tx = kmem_cache_alloc(dev->verbs_txreq_cache, VERBS_TXREQ_GFP);
 		if (tx)
 			goto out;
 		priv = qp->priv;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/verbs_txreq.h linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/verbs_txreq.h
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hfi1/verbs_txreq.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hfi1/verbs_txreq.h	2019-07-28 02:28:39.000000000 -0400
@@ -72,6 +72,7 @@ struct hfi1_ibdev;
 struct verbs_txreq *__get_txreq(struct hfi1_ibdev *dev,
 				struct rvt_qp *qp);
 
+#define VERBS_TXREQ_GFP (GFP_ATOMIC | __GFP_NOWARN)
 static inline struct verbs_txreq *get_txreq(struct hfi1_ibdev *dev,
 					    struct rvt_qp *qp)
 	__must_hold(&qp->slock)
@@ -79,7 +80,7 @@ static inline struct verbs_txreq *get_tx
 	struct verbs_txreq *tx;
 	struct hfi1_qp_priv *priv = qp->priv;
 
-	tx = kmem_cache_alloc(dev->verbs_txreq_cache, GFP_ATOMIC);
+	tx = kmem_cache_alloc(dev->verbs_txreq_cache, VERBS_TXREQ_GFP);
 	if (unlikely(!tx)) {
 		/* call slow path to get the lock */
 		tx = __get_txreq(dev, qp);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/hns/hns_roce_ah.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/hns/hns_roce_ah.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/hns/hns_roce_ah.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/hns/hns_roce_ah.c	2019-07-28 02:28:39.000000000 -0400
@@ -70,7 +70,7 @@ struct ib_ah *hns_roce_create_ah(struct
 			     HNS_ROCE_VLAN_SL_BIT_MASK) <<
 			     HNS_ROCE_VLAN_SL_SHIFT;
 
-	ah->av.port_pd = cpu_to_be32(to_hr_pd(ibpd)->pdn |
+	ah->av.port_pd = cpu_to_le32(to_hr_pd(ibpd)->pdn |
 				     (rdma_ah_get_port_num(ah_attr) <<
 				     HNS_ROCE_PORT_NUM_SHIFT));
 	ah->av.gid_index = grh->sgid_index;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/mlx5/main.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/mlx5/main.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/mlx5/main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/mlx5/main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1041,15 +1041,19 @@ static int mlx5_ib_query_device(struct i
 	}
 
 	if (MLX5_CAP_GEN(mdev, tag_matching)) {
-		props->tm_caps.max_rndv_hdr_size = MLX5_TM_MAX_RNDV_MSG_SIZE;
 		props->tm_caps.max_num_tags =
 			(1 << MLX5_CAP_GEN(mdev, log_tag_matching_list_sz)) - 1;
-		props->tm_caps.flags = IB_TM_CAP_RC;
 		props->tm_caps.max_ops =
 			1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
 		props->tm_caps.max_sge = MLX5_TM_MAX_SGE;
 	}
 
+	if (MLX5_CAP_GEN(mdev, tag_matching) &&
+	    MLX5_CAP_GEN(mdev, rndv_offload_rc)) {
+		props->tm_caps.flags = IB_TM_CAP_RNDV_RC;
+		props->tm_caps.max_rndv_hdr_size = MLX5_TM_MAX_RNDV_MSG_SIZE;
+	}
+
 	if (MLX5_CAP_GEN(dev->mdev, cq_moderation)) {
 		props->cq_caps.max_cq_moderation_count =
 						MLX5_MAX_CQ_COUNT;
@@ -2070,11 +2074,12 @@ static int mlx5_ib_mmap_clock_info_page(
 		return -EPERM;
 	vma->vm_flags &= ~VM_MAYWRITE;
 
-	if (!dev->mdev->clock_info_page)
+	if (!dev->mdev->clock_info)
 		return -EOPNOTSUPP;
 
 	return rdma_user_mmap_page(&context->ibucontext, vma,
-				   dev->mdev->clock_info_page, PAGE_SIZE);
+				   virt_to_page(dev->mdev->clock_info),
+				   PAGE_SIZE);
 }
 
 static int uar_mmap(struct mlx5_ib_dev *dev, enum mlx5_ib_mmap_cmd cmd,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/mlx5/odp.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/mlx5/odp.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/mlx5/odp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/mlx5/odp.c	2019-07-28 02:28:39.000000000 -0400
@@ -711,6 +711,15 @@ struct pf_frame {
 	int depth;
 };
 
+static bool mkey_is_eq(struct mlx5_core_mkey *mmkey, u32 key)
+{
+	if (!mmkey)
+		return false;
+	if (mmkey->type == MLX5_MKEY_MW)
+		return mlx5_base_mkey(mmkey->key) == mlx5_base_mkey(key);
+	return mmkey->key == key;
+}
+
 static int get_indirect_num_descs(struct mlx5_core_mkey *mmkey)
 {
 	struct mlx5_ib_mw *mw;
@@ -760,7 +769,7 @@ static int pagefault_single_data_segment
 
 next_mr:
 	mmkey = __mlx5_mr_lookup(dev->mdev, mlx5_base_mkey(key));
-	if (!mmkey || mmkey->key != key) {
+	if (!mkey_is_eq(mmkey, key)) {
 		mlx5_ib_dbg(dev, "failed to find mkey %x\n", key);
 		ret = -EFAULT;
 		goto srcu_unlock;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/ocrdma/ocrdma_ah.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/ocrdma/ocrdma_ah.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/ocrdma/ocrdma_ah.c	2019-07-28 02:28:39.000000000 -0400
@@ -83,7 +83,6 @@ static inline int set_av_attr(struct ocr
 	struct iphdr ipv4;
 	const struct ib_global_route *ib_grh;
 	union {
-		struct sockaddr     _sockaddr;
 		struct sockaddr_in  _sockaddr_in;
 		struct sockaddr_in6 _sockaddr_in6;
 	} sgid_addr, dgid_addr;
@@ -133,9 +132,9 @@ static inline int set_av_attr(struct ocr
 		ipv4.tot_len = htons(0);
 		ipv4.ttl = ib_grh->hop_limit;
 		ipv4.protocol = nxthdr;
-		rdma_gid2ip(&sgid_addr._sockaddr, sgid);
+		rdma_gid2ip((struct sockaddr *)&sgid_addr, sgid);
 		ipv4.saddr = sgid_addr._sockaddr_in.sin_addr.s_addr;
-		rdma_gid2ip(&dgid_addr._sockaddr, &ib_grh->dgid);
+		rdma_gid2ip((struct sockaddr*)&dgid_addr, &ib_grh->dgid);
 		ipv4.daddr = dgid_addr._sockaddr_in.sin_addr.s_addr;
 		memcpy((u8 *)ah->av + eth_sz, &ipv4, sizeof(struct iphdr));
 	} else {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/ocrdma/ocrdma_hw.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/ocrdma/ocrdma_hw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/ocrdma/ocrdma_hw.c	2019-07-28 02:28:39.000000000 -0400
@@ -2499,7 +2499,6 @@ static int ocrdma_set_av_params(struct o
 	u32 vlan_id = 0xFFFF;
 	u8 mac_addr[6], hdr_type;
 	union {
-		struct sockaddr     _sockaddr;
 		struct sockaddr_in  _sockaddr_in;
 		struct sockaddr_in6 _sockaddr_in6;
 	} sgid_addr, dgid_addr;
@@ -2541,8 +2540,8 @@ static int ocrdma_set_av_params(struct o
 
 	hdr_type = rdma_gid_attr_network_type(sgid_attr);
 	if (hdr_type == RDMA_NETWORK_IPV4) {
-		rdma_gid2ip(&sgid_addr._sockaddr, &sgid_attr->gid);
-		rdma_gid2ip(&dgid_addr._sockaddr, &grh->dgid);
+		rdma_gid2ip((struct sockaddr *)&sgid_addr, &sgid_attr->gid);
+		rdma_gid2ip((struct sockaddr *)&dgid_addr, &grh->dgid);
 		memcpy(&cmd->params.dgid[0],
 		       &dgid_addr._sockaddr_in.sin_addr.s_addr, 4);
 		memcpy(&cmd->params.sgid[0],
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/hw/qib/qib_verbs.c linux-libre-5.1.21-gnu/drivers/infiniband/hw/qib/qib_verbs.c
--- linux-libre-5.1-gnu/drivers/infiniband/hw/qib/qib_verbs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/hw/qib/qib_verbs.c	2019-07-28 02:28:39.000000000 -0400
@@ -1459,8 +1459,6 @@ static void qib_fill_device_attr(struct
 	rdi->dparms.props.max_cq = ib_qib_max_cqs;
 	rdi->dparms.props.max_cqe = ib_qib_max_cqes;
 	rdi->dparms.props.max_ah = ib_qib_max_ahs;
-	rdi->dparms.props.max_mr = rdi->lkey_table.max;
-	rdi->dparms.props.max_fmr = rdi->lkey_table.max;
 	rdi->dparms.props.max_map_per_fmr = 32767;
 	rdi->dparms.props.max_qp_rd_atom = QIB_MAX_RDMA_ATOMIC;
 	rdi->dparms.props.max_qp_init_rd_atom = 255;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/sw/rdmavt/mr.c linux-libre-5.1.21-gnu/drivers/infiniband/sw/rdmavt/mr.c
--- linux-libre-5.1-gnu/drivers/infiniband/sw/rdmavt/mr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/sw/rdmavt/mr.c	2019-07-28 02:28:39.000000000 -0400
@@ -96,6 +96,8 @@ int rvt_driver_mr_init(struct rvt_dev_in
 	for (i = 0; i < rdi->lkey_table.max; i++)
 		RCU_INIT_POINTER(rdi->lkey_table.table[i], NULL);
 
+	rdi->dparms.props.max_mr = rdi->lkey_table.max;
+	rdi->dparms.props.max_fmr = rdi->lkey_table.max;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/sw/rdmavt/qp.c linux-libre-5.1.21-gnu/drivers/infiniband/sw/rdmavt/qp.c
--- linux-libre-5.1-gnu/drivers/infiniband/sw/rdmavt/qp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/sw/rdmavt/qp.c	2019-07-28 02:28:39.000000000 -0400
@@ -594,7 +594,8 @@ static int alloc_qpn(struct rvt_dev_info
 			offset = qpt->incr | ((offset & 1) ^ 1);
 		}
 		/* there can be no set bits in low-order QoS bits */
-		WARN_ON(offset & (BIT(rdi->dparms.qos_shift) - 1));
+		WARN_ON(rdi->dparms.qos_shift > 1 &&
+			offset & ((BIT(rdi->dparms.qos_shift - 1) - 1) << 1));
 		qpn = mk_qpn(qpt, map, offset);
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/sw/rxe/rxe_mr.c linux-libre-5.1.21-gnu/drivers/infiniband/sw/rxe/rxe_mr.c
--- linux-libre-5.1-gnu/drivers/infiniband/sw/rxe/rxe_mr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/sw/rxe/rxe_mr.c	2019-07-28 02:28:39.000000000 -0400
@@ -199,6 +199,12 @@ int rxe_mem_init_user(struct rxe_pd *pd,
 		buf = map[0]->buf;
 
 		for_each_sg_page(umem->sg_head.sgl, &sg_iter, umem->nmap, 0) {
+			if (num_buf >= RXE_BUF_PER_MAP) {
+				map++;
+				buf = map[0]->buf;
+				num_buf = 0;
+			}
+
 			vaddr = page_address(sg_page_iter_page(&sg_iter));
 			if (!vaddr) {
 				pr_warn("null vaddr\n");
@@ -211,11 +217,6 @@ int rxe_mem_init_user(struct rxe_pd *pd,
 			num_buf++;
 			buf++;
 
-			if (num_buf >= RXE_BUF_PER_MAP) {
-				map++;
-				buf = map[0]->buf;
-				num_buf = 0;
-			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c linux-libre-5.1.21-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c
--- linux-libre-5.1-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1998,6 +1998,7 @@ static int ipoib_get_vf_config(struct ne
 		return err;
 
 	ivf->vf = vf;
+	memcpy(ivf->mac, dev->dev_addr, dev->addr_len);
 
 	return 0;
 }
@@ -2402,7 +2403,18 @@ static ssize_t dev_id_show(struct device
 {
 	struct net_device *ndev = to_net_dev(dev);
 
-	if (ndev->dev_id == ndev->dev_port)
+	/*
+	 * ndev->dev_port will be equal to 0 in old kernel prior to commit
+	 * 9b8b2a323008 ("IB/ipoib: Use dev_port to expose network interface
+	 * port numbers") Zero was chosen as special case for user space
+	 * applications to fallback and query dev_id to check if it has
+	 * different value or not.
+	 *
+	 * Don't print warning in such scenario.
+	 *
+	 * https://github.com/systemd/systemd/blob/master/src/udev/udev-builtin-net_id.c#L358
+	 */
+	if (ndev->dev_port && ndev->dev_id == ndev->dev_port)
 		netdev_info_once(ndev,
 			"\"%s\" wants to know my dev_id. Should it look at dev_port instead? See Documentation/ABI/testing/sysfs-class-net for more info.\n",
 			current->comm);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/infiniband/ulp/srp/ib_srp.c linux-libre-5.1.21-gnu/drivers/infiniband/ulp/srp/ib_srp.c
--- linux-libre-5.1-gnu/drivers/infiniband/ulp/srp/ib_srp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/infiniband/ulp/srp/ib_srp.c	2019-07-28 02:28:39.000000000 -0400
@@ -3481,13 +3481,14 @@ static const match_table_t srp_opt_token
  * @net:	   [in]  Network namespace.
  * @sa:		   [out] Address family, IP address and port number.
  * @addr_port_str: [in]  IP address and port number.
+ * @has_port:	   [out] Whether or not @addr_port_str includes a port number.
  *
  * Parse the following address formats:
  * - IPv4: <ip_address>:<port>, e.g. 1.2.3.4:5.
  * - IPv6: \[<ipv6_address>\]:<port>, e.g. [1::2:3%4]:5.
  */
 static int srp_parse_in(struct net *net, struct sockaddr_storage *sa,
-			const char *addr_port_str)
+			const char *addr_port_str, bool *has_port)
 {
 	char *addr_end, *addr = kstrdup(addr_port_str, GFP_KERNEL);
 	char *port_str;
@@ -3496,9 +3497,12 @@ static int srp_parse_in(struct net *net,
 	if (!addr)
 		return -ENOMEM;
 	port_str = strrchr(addr, ':');
-	if (!port_str)
-		return -EINVAL;
-	*port_str++ = '\0';
+	if (port_str && strchr(port_str, ']'))
+		port_str = NULL;
+	if (port_str)
+		*port_str++ = '\0';
+	if (has_port)
+		*has_port = port_str != NULL;
 	ret = inet_pton_with_scope(net, AF_INET, addr, port_str, sa);
 	if (ret && addr[0]) {
 		addr_end = addr + strlen(addr) - 1;
@@ -3520,6 +3524,7 @@ static int srp_parse_options(struct net
 	char *p;
 	substring_t args[MAX_OPT_ARGS];
 	unsigned long long ull;
+	bool has_port;
 	int opt_mask = 0;
 	int token;
 	int ret = -EINVAL;
@@ -3618,7 +3623,8 @@ static int srp_parse_options(struct net
 				ret = -ENOMEM;
 				goto out;
 			}
-			ret = srp_parse_in(net, &target->rdma_cm.src.ss, p);
+			ret = srp_parse_in(net, &target->rdma_cm.src.ss, p,
+					   NULL);
 			if (ret < 0) {
 				pr_warn("bad source parameter '%s'\n", p);
 				kfree(p);
@@ -3634,7 +3640,10 @@ static int srp_parse_options(struct net
 				ret = -ENOMEM;
 				goto out;
 			}
-			ret = srp_parse_in(net, &target->rdma_cm.dst.ss, p);
+			ret = srp_parse_in(net, &target->rdma_cm.dst.ss, p,
+					   &has_port);
+			if (!has_port)
+				ret = -EINVAL;
 			if (ret < 0) {
 				pr_warn("bad dest parameter '%s'\n", p);
 				kfree(p);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/input/keyboard/imx_keypad.c linux-libre-5.1.21-gnu/drivers/input/keyboard/imx_keypad.c
--- linux-libre-5.1-gnu/drivers/input/keyboard/imx_keypad.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/input/keyboard/imx_keypad.c	2019-07-28 02:28:39.000000000 -0400
@@ -526,11 +526,12 @@ static int imx_keypad_probe(struct platf
 	return 0;
 }
 
-static int __maybe_unused imx_kbd_suspend(struct device *dev)
+static int __maybe_unused imx_kbd_noirq_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct imx_keypad *kbd = platform_get_drvdata(pdev);
 	struct input_dev *input_dev = kbd->input_dev;
+	unsigned short reg_val = readw(kbd->mmio_base + KPSR);
 
 	/* imx kbd can wake up system even clock is disabled */
 	mutex_lock(&input_dev->mutex);
@@ -540,13 +541,20 @@ static int __maybe_unused imx_kbd_suspen
 
 	mutex_unlock(&input_dev->mutex);
 
-	if (device_may_wakeup(&pdev->dev))
+	if (device_may_wakeup(&pdev->dev)) {
+		if (reg_val & KBD_STAT_KPKD)
+			reg_val |= KBD_STAT_KRIE;
+		if (reg_val & KBD_STAT_KPKR)
+			reg_val |= KBD_STAT_KDIE;
+		writew(reg_val, kbd->mmio_base + KPSR);
+
 		enable_irq_wake(kbd->irq);
+	}
 
 	return 0;
 }
 
-static int __maybe_unused imx_kbd_resume(struct device *dev)
+static int __maybe_unused imx_kbd_noirq_resume(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct imx_keypad *kbd = platform_get_drvdata(pdev);
@@ -570,7 +578,9 @@ err_clk:
 	return ret;
 }
 
-static SIMPLE_DEV_PM_OPS(imx_kbd_pm_ops, imx_kbd_suspend, imx_kbd_resume);
+static const struct dev_pm_ops imx_kbd_pm_ops = {
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(imx_kbd_noirq_suspend, imx_kbd_noirq_resume)
+};
 
 static struct platform_driver imx_keypad_driver = {
 	.driver		= {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/input/misc/uinput.c linux-libre-5.1.21-gnu/drivers/input/misc/uinput.c
--- linux-libre-5.1-gnu/drivers/input/misc/uinput.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/input/misc/uinput.c	2019-07-28 02:28:39.000000000 -0400
@@ -1051,13 +1051,31 @@ static long uinput_ioctl(struct file *fi
 
 #ifdef CONFIG_COMPAT
 
-#define UI_SET_PHYS_COMPAT	_IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+/*
+ * These IOCTLs change their size and thus their numbers between
+ * 32 and 64 bits.
+ */
+#define UI_SET_PHYS_COMPAT		\
+	_IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+#define UI_BEGIN_FF_UPLOAD_COMPAT	\
+	_IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload_compat)
+#define UI_END_FF_UPLOAD_COMPAT		\
+	_IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload_compat)
 
 static long uinput_compat_ioctl(struct file *file,
 				unsigned int cmd, unsigned long arg)
 {
-	if (cmd == UI_SET_PHYS_COMPAT)
+	switch (cmd) {
+	case UI_SET_PHYS_COMPAT:
 		cmd = UI_SET_PHYS;
+		break;
+	case UI_BEGIN_FF_UPLOAD_COMPAT:
+		cmd = UI_BEGIN_FF_UPLOAD;
+		break;
+	case UI_END_FF_UPLOAD_COMPAT:
+		cmd = UI_END_FF_UPLOAD;
+		break;
+	}
 
 	return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/input/mouse/alps.c linux-libre-5.1.21-gnu/drivers/input/mouse/alps.c
--- linux-libre-5.1-gnu/drivers/input/mouse/alps.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/input/mouse/alps.c	2019-07-28 02:28:39.000000000 -0400
@@ -24,6 +24,7 @@
 
 #include "psmouse.h"
 #include "alps.h"
+#include "trackpoint.h"
 
 /*
  * Definitions for ALPS version 3 and 4 command mode protocol
@@ -2864,6 +2865,23 @@ static const struct alps_protocol_info *
 	return NULL;
 }
 
+static bool alps_is_cs19_trackpoint(struct psmouse *psmouse)
+{
+	u8 param[2] = { 0 };
+
+	if (ps2_command(&psmouse->ps2dev,
+			param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
+		return false;
+
+	/*
+	 * param[0] contains the trackpoint device variant_id while
+	 * param[1] contains the firmware_id. So far all alps
+	 * trackpoint-only devices have their variant_ids equal
+	 * TP_VARIANT_ALPS and their firmware_ids are in 0x20~0x2f range.
+	 */
+	return param[0] == TP_VARIANT_ALPS && ((param[1] & 0xf0) == 0x20);
+}
+
 static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
 {
 	const struct alps_protocol_info *protocol;
@@ -3165,6 +3183,20 @@ int alps_detect(struct psmouse *psmouse,
 		return error;
 
 	/*
+	 * ALPS cs19 is a trackpoint-only device, and uses different
+	 * protocol than DualPoint ones, so we return -EINVAL here and let
+	 * trackpoint.c drive this device. If the trackpoint driver is not
+	 * enabled, the device will fall back to a bare PS/2 mouse.
+	 * If ps2_command() fails here, we depend on the immediately
+	 * followed psmouse_reset() to reset the device to normal state.
+	 */
+	if (alps_is_cs19_trackpoint(psmouse)) {
+		psmouse_dbg(psmouse,
+			    "ALPS CS19 trackpoint-only device detected, ignoring\n");
+		return -EINVAL;
+	}
+
+	/*
 	 * Reset the device to make sure it is fully operational:
 	 * on some laptops, like certain Dell Latitudes, we may
 	 * fail to properly detect presence of trackstick if device
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/input/mouse/elantech.c linux-libre-5.1.21-gnu/drivers/input/mouse/elantech.c
--- linux-libre-5.1-gnu/drivers/input/mouse/elantech.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/input/mouse/elantech.c	2019-07-28 02:28:39.000000000 -0400
@@ -1189,6 +1189,8 @@ static const char * const middle_button_
 	"LEN2132", /* ThinkPad P52 */
 	"LEN2133", /* ThinkPad P72 w/ NFC */
 	"LEN2134", /* ThinkPad P72 */
+	"LEN0407",
+	"LEN0408",
 	NULL
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/input/mouse/synaptics.c linux-libre-5.1.21-gnu/drivers/input/mouse/synaptics.c
--- linux-libre-5.1-gnu/drivers/input/mouse/synaptics.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/input/mouse/synaptics.c	2019-07-28 02:28:39.000000000 -0400
@@ -176,9 +176,13 @@ static const char * const smbus_pnp_ids[
 	"LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */
 	"LEN0073", /* X1 Carbon G5 (Elantech) */
 	"LEN0092", /* X1 Carbon 6 */
+	"LEN0093", /* T480 */
 	"LEN0096", /* X280 */
 	"LEN0097", /* X280 -> ALPS trackpoint */
+	"LEN009b", /* T580 */
 	"LEN200f", /* T450s */
+	"LEN2054", /* E480 */
+	"LEN2055", /* E580 */
 	"SYN3052", /* HP EliteBook 840 G4 */
 	"SYN3221", /* HP 15-ay000 */
 	NULL
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/input/tablet/gtco.c linux-libre-5.1.21-gnu/drivers/input/tablet/gtco.c
--- linux-libre-5.1-gnu/drivers/input/tablet/gtco.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/input/tablet/gtco.c	2019-07-28 02:28:39.000000000 -0400
@@ -78,6 +78,7 @@ Scott Hill shill@gtcocalcomp.com
 
 /* Max size of a single report */
 #define REPORT_MAX_SIZE       10
+#define MAX_COLLECTION_LEVELS  10
 
 
 /* Bitmask whether pen is in range */
@@ -223,8 +224,7 @@ static void parse_hid_report_descriptor(
 	char  maintype = 'x';
 	char  globtype[12];
 	int   indent = 0;
-	char  indentstr[10] = "";
-
+	char  indentstr[MAX_COLLECTION_LEVELS + 1] = { 0 };
 
 	dev_dbg(ddev, "======>>>>>>PARSE<<<<<<======\n");
 
@@ -350,6 +350,13 @@ static void parse_hid_report_descriptor(
 			case TAG_MAIN_COL_START:
 				maintype = 'S';
 
+				if (indent == MAX_COLLECTION_LEVELS) {
+					dev_err(ddev, "Collection level %d would exceed limit of %d\n",
+						indent + 1,
+						MAX_COLLECTION_LEVELS);
+					break;
+				}
+
 				if (data == 0) {
 					dev_dbg(ddev, "======>>>>>> Physical\n");
 					strcpy(globtype, "Physical");
@@ -369,8 +376,15 @@ static void parse_hid_report_descriptor(
 				break;
 
 			case TAG_MAIN_COL_END:
-				dev_dbg(ddev, "<<<<<<======\n");
 				maintype = 'E';
+
+				if (indent == 0) {
+					dev_err(ddev, "Collection level already at zero\n");
+					break;
+				}
+
+				dev_dbg(ddev, "<<<<<<======\n");
+
 				indent--;
 				for (x = 0; x < indent; x++)
 					indentstr[x] = '-';
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/input/touchscreen/goodix.c linux-libre-5.1.21-gnu/drivers/input/touchscreen/goodix.c
--- linux-libre-5.1-gnu/drivers/input/touchscreen/goodix.c	2019-05-05 21:42:36.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/input/touchscreen/goodix.c	2019-07-28 13:46:53.000000000 -0400
@@ -216,6 +216,7 @@ static const struct goodix_chip_data *go
 {
 	switch (id) {
 	case 1151:
+	case 5663:
 	case 5688:
 		return &gt1x_chip_data;
 
@@ -945,6 +946,7 @@ MODULE_DEVICE_TABLE(acpi, goodix_acpi_ma
 #ifdef CONFIG_OF
 static const struct of_device_id goodix_of_match[] = {
 	{ .compatible = "goodix,gt1151" },
+	{ .compatible = "goodix,gt5663" },
 	{ .compatible = "goodix,gt5688" },
 	{ .compatible = "goodix,gt911" },
 	{ .compatible = "goodix,gt9110" },
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/input/touchscreen/silead.c linux-libre-5.1.21-gnu/drivers/input/touchscreen/silead.c
--- linux-libre-5.1-gnu/drivers/input/touchscreen/silead.c	2019-05-05 21:42:52.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/input/touchscreen/silead.c	2019-07-28 13:47:18.000000000 -0400
@@ -616,6 +616,7 @@ static const struct acpi_device_id silea
 	{ "MSSL1680", 0 },
 	{ "MSSL0001", 0 },
 	{ "MSSL0002", 0 },
+	{ "MSSL0017", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, silead_ts_acpi_match);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iommu/arm-smmu.c linux-libre-5.1.21-gnu/drivers/iommu/arm-smmu.c
--- linux-libre-5.1-gnu/drivers/iommu/arm-smmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iommu/arm-smmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -59,6 +59,15 @@
 
 #include "arm-smmu-regs.h"
 
+/*
+ * Apparently, some Qualcomm arm64 platforms which appear to expose their SMMU
+ * global register space are still, in fact, using a hypervisor to mediate it
+ * by trapping and emulating register accesses. Sadly, some deployed versions
+ * of said trapping code have bugs wherein they go horribly wrong for stores
+ * using r31 (i.e. XZR/WZR) as the source register.
+ */
+#define QCOM_DUMMY_VAL -1
+
 #define ARM_MMU500_ACTLR_CPRE		(1 << 1)
 
 #define ARM_MMU500_ACR_CACHE_LOCK	(1 << 26)
@@ -422,7 +431,7 @@ static void __arm_smmu_tlb_sync(struct a
 {
 	unsigned int spin_cnt, delay;
 
-	writel_relaxed(0, sync);
+	writel_relaxed(QCOM_DUMMY_VAL, sync);
 	for (delay = 1; delay < TLB_LOOP_TIMEOUT; delay *= 2) {
 		for (spin_cnt = TLB_SPIN_COUNT; spin_cnt > 0; spin_cnt--) {
 			if (!(readl_relaxed(status) & sTLBGSTATUS_GSACTIVE))
@@ -1760,8 +1769,8 @@ static void arm_smmu_device_reset(struct
 	}
 
 	/* Invalidate the TLB, just in case */
-	writel_relaxed(0, gr0_base + ARM_SMMU_GR0_TLBIALLH);
-	writel_relaxed(0, gr0_base + ARM_SMMU_GR0_TLBIALLNSNH);
+	writel_relaxed(QCOM_DUMMY_VAL, gr0_base + ARM_SMMU_GR0_TLBIALLH);
+	writel_relaxed(QCOM_DUMMY_VAL, gr0_base + ARM_SMMU_GR0_TLBIALLNSNH);
 
 	reg = readl_relaxed(ARM_SMMU_GR0_NS(smmu) + ARM_SMMU_GR0_sCR0);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iommu/arm-smmu-v3.c linux-libre-5.1.21-gnu/drivers/iommu/arm-smmu-v3.c
--- linux-libre-5.1-gnu/drivers/iommu/arm-smmu-v3.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iommu/arm-smmu-v3.c	2019-07-28 02:28:39.000000000 -0400
@@ -2454,13 +2454,9 @@ static int arm_smmu_device_reset(struct
 	/* Clear CR0 and sync (disables SMMU and queue processing) */
 	reg = readl_relaxed(smmu->base + ARM_SMMU_CR0);
 	if (reg & CR0_SMMUEN) {
-		if (is_kdump_kernel()) {
-			arm_smmu_update_gbpa(smmu, GBPA_ABORT, 0);
-			arm_smmu_device_disable(smmu);
-			return -EBUSY;
-		}
-
 		dev_warn(smmu->dev, "SMMU currently enabled! Resetting...\n");
+		WARN_ON(is_kdump_kernel() && !disable_bypass);
+		arm_smmu_update_gbpa(smmu, GBPA_ABORT, 0);
 	}
 
 	ret = arm_smmu_device_disable(smmu);
@@ -2553,6 +2549,8 @@ static int arm_smmu_device_reset(struct
 		return ret;
 	}
 
+	if (is_kdump_kernel())
+		enables &= ~(CR0_EVTQEN | CR0_PRIQEN);
 
 	/* Enable the SMMU interface, or ensure bypass */
 	if (!bypass || disable_bypass) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iommu/intel-iommu.c linux-libre-5.1.21-gnu/drivers/iommu/intel-iommu.c
--- linux-libre-5.1-gnu/drivers/iommu/intel-iommu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iommu/intel-iommu.c	2019-07-28 02:28:39.000000000 -0400
@@ -3496,7 +3496,13 @@ domains_done:
 
 #ifdef CONFIG_INTEL_IOMMU_SVM
 		if (pasid_supported(iommu) && ecap_prs(iommu->ecap)) {
+			/*
+			 * Call dmar_alloc_hwirq() with dmar_global_lock held,
+			 * could cause possible lock race condition.
+			 */
+			up_write(&dmar_global_lock);
 			ret = intel_svm_enable_prq(iommu);
+			down_write(&dmar_global_lock);
 			if (ret)
 				goto free_iommu;
 		}
@@ -3730,6 +3736,7 @@ static void intel_unmap(struct device *d
 	unsigned long iova_pfn;
 	struct intel_iommu *iommu;
 	struct page *freelist;
+	struct pci_dev *pdev = NULL;
 
 	if (iommu_no_mapping(dev))
 		return;
@@ -3745,11 +3752,14 @@ static void intel_unmap(struct device *d
 	start_pfn = mm_to_dma_pfn(iova_pfn);
 	last_pfn = start_pfn + nrpages - 1;
 
+	if (dev_is_pci(dev))
+		pdev = to_pci_dev(dev);
+
 	dev_dbg(dev, "Device unmapping: pfn %lx-%lx\n", start_pfn, last_pfn);
 
 	freelist = domain_unmap(domain, start_pfn, last_pfn);
 
-	if (intel_iommu_strict) {
+	if (intel_iommu_strict || (pdev && pdev->untrusted)) {
 		iommu_flush_iotlb_psi(iommu, domain, start_pfn,
 				      nrpages, !freelist, 0);
 		/* free iova */
@@ -4055,9 +4065,7 @@ static void __init init_no_remapping_dev
 
 		/* This IOMMU has *only* gfx devices. Either bypass it or
 		   set the gfx_mapped flag, as appropriate */
-		if (dmar_map_gfx) {
-			intel_iommu_gfx_mapped = 1;
-		} else {
+		if (!dmar_map_gfx) {
 			drhd->ignored = 1;
 			for_each_active_dev_scope(drhd->devices,
 						  drhd->devices_cnt, i, dev)
@@ -4896,6 +4904,9 @@ int __init intel_iommu_init(void)
 		goto out_free_reserved_range;
 	}
 
+	if (dmar_map_gfx)
+		intel_iommu_gfx_mapped = 1;
+
 	init_no_remapping_devices();
 
 	ret = init_dmars();
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iommu/intel-pasid.c linux-libre-5.1.21-gnu/drivers/iommu/intel-pasid.c
--- linux-libre-5.1-gnu/drivers/iommu/intel-pasid.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iommu/intel-pasid.c	2019-07-28 02:28:39.000000000 -0400
@@ -387,7 +387,7 @@ static inline void pasid_set_present(str
  */
 static inline void pasid_set_page_snoop(struct pasid_entry *pe, bool value)
 {
-	pasid_set_bits(&pe->val[1], 1 << 23, value);
+	pasid_set_bits(&pe->val[1], 1 << 23, value << 23);
 }
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iommu/iommu.c linux-libre-5.1.21-gnu/drivers/iommu/iommu.c
--- linux-libre-5.1-gnu/drivers/iommu/iommu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iommu/iommu.c	2019-07-28 02:28:39.000000000 -0400
@@ -241,18 +241,21 @@ static int iommu_insert_resv_region(stru
 			pos = pos->next;
 		} else if ((start >= a) && (end <= b)) {
 			if (new->type == type)
-				goto done;
+				return 0;
 			else
 				pos = pos->next;
 		} else {
 			if (new->type == type) {
 				phys_addr_t new_start = min(a, start);
 				phys_addr_t new_end = max(b, end);
+				int ret;
 
 				list_del(&entry->list);
 				entry->start = new_start;
 				entry->length = new_end - new_start + 1;
-				iommu_insert_resv_region(entry, regions);
+				ret = iommu_insert_resv_region(entry, regions);
+				kfree(entry);
+				return ret;
 			} else {
 				pos = pos->next;
 			}
@@ -265,7 +268,6 @@ insert:
 		return -ENOMEM;
 
 	list_add_tail(&region->list, pos);
-done:
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/iommu/tegra-smmu.c linux-libre-5.1.21-gnu/drivers/iommu/tegra-smmu.c
--- linux-libre-5.1-gnu/drivers/iommu/tegra-smmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/iommu/tegra-smmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -102,7 +102,6 @@ static inline u32 smmu_readl(struct tegr
 #define  SMMU_TLB_FLUSH_VA_MATCH_ALL     (0 << 0)
 #define  SMMU_TLB_FLUSH_VA_MATCH_SECTION (2 << 0)
 #define  SMMU_TLB_FLUSH_VA_MATCH_GROUP   (3 << 0)
-#define  SMMU_TLB_FLUSH_ASID(x)          (((x) & 0x7f) << 24)
 #define  SMMU_TLB_FLUSH_VA_SECTION(addr) ((((addr) & 0xffc00000) >> 12) | \
 					  SMMU_TLB_FLUSH_VA_MATCH_SECTION)
 #define  SMMU_TLB_FLUSH_VA_GROUP(addr)   ((((addr) & 0xffffc000) >> 12) | \
@@ -205,8 +204,12 @@ static inline void smmu_flush_tlb_asid(s
 {
 	u32 value;
 
-	value = SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_ASID(asid) |
-		SMMU_TLB_FLUSH_VA_MATCH_ALL;
+	if (smmu->soc->num_asids == 4)
+		value = (asid & 0x3) << 29;
+	else
+		value = (asid & 0x7f) << 24;
+
+	value |= SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_VA_MATCH_ALL;
 	smmu_writel(smmu, value, SMMU_TLB_FLUSH);
 }
 
@@ -216,8 +219,12 @@ static inline void smmu_flush_tlb_sectio
 {
 	u32 value;
 
-	value = SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_ASID(asid) |
-		SMMU_TLB_FLUSH_VA_SECTION(iova);
+	if (smmu->soc->num_asids == 4)
+		value = (asid & 0x3) << 29;
+	else
+		value = (asid & 0x7f) << 24;
+
+	value |= SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_VA_SECTION(iova);
 	smmu_writel(smmu, value, SMMU_TLB_FLUSH);
 }
 
@@ -227,8 +234,12 @@ static inline void smmu_flush_tlb_group(
 {
 	u32 value;
 
-	value = SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_ASID(asid) |
-		SMMU_TLB_FLUSH_VA_GROUP(iova);
+	if (smmu->soc->num_asids == 4)
+		value = (asid & 0x3) << 29;
+	else
+		value = (asid & 0x7f) << 24;
+
+	value |= SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_VA_GROUP(iova);
 	smmu_writel(smmu, value, SMMU_TLB_FLUSH);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/irqchip/irq-csky-mpintc.c linux-libre-5.1.21-gnu/drivers/irqchip/irq-csky-mpintc.c
--- linux-libre-5.1-gnu/drivers/irqchip/irq-csky-mpintc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/irqchip/irq-csky-mpintc.c	2019-07-28 02:28:39.000000000 -0400
@@ -89,8 +89,19 @@ static int csky_irq_set_affinity(struct
 	if (cpu >= nr_cpu_ids)
 		return -EINVAL;
 
-	/* Enable interrupt destination */
-	cpu |= BIT(31);
+	/*
+	 * The csky,mpintc could support auto irq deliver, but it only
+	 * could deliver external irq to one cpu or all cpus. So it
+	 * doesn't support deliver external irq to a group of cpus
+	 * with cpu_mask.
+	 * SO we only use auto deliver mode when affinity mask_val is
+	 * equal to cpu_present_mask.
+	 *
+	 */
+	if (cpumask_equal(mask_val, cpu_present_mask))
+		cpu = 0;
+	else
+		cpu |= BIT(31);
 
 	writel_relaxed(cpu, INTCG_base + INTCG_CIDSTR + offset);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/irqchip/irq-gic-v3.c linux-libre-5.1.21-gnu/drivers/irqchip/irq-gic-v3.c
--- linux-libre-5.1-gnu/drivers/irqchip/irq-gic-v3.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/irqchip/irq-gic-v3.c	2019-07-28 02:28:39.000000000 -0400
@@ -472,8 +472,12 @@ static void gic_deactivate_unhandled(u32
 
 static inline void gic_handle_nmi(u32 irqnr, struct pt_regs *regs)
 {
+	bool irqs_enabled = interrupts_enabled(regs);
 	int err;
 
+	if (irqs_enabled)
+		nmi_enter();
+
 	if (static_branch_likely(&supports_deactivate_key))
 		gic_write_eoir(irqnr);
 	/*
@@ -485,6 +489,9 @@ static inline void gic_handle_nmi(u32 ir
 	err = handle_domain_nmi(gic_data.domain, irqnr, regs);
 	if (err)
 		gic_deactivate_unhandled(irqnr);
+
+	if (irqs_enabled)
+		nmi_exit();
 }
 
 static asmlinkage void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/irqchip/irq-gic-v3-its.c linux-libre-5.1.21-gnu/drivers/irqchip/irq-gic-v3-its.c
--- linux-libre-5.1-gnu/drivers/irqchip/irq-gic-v3-its.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/irqchip/irq-gic-v3-its.c	2019-07-28 02:28:39.000000000 -0400
@@ -745,32 +745,43 @@ static void its_flush_cmd(struct its_nod
 }
 
 static int its_wait_for_range_completion(struct its_node *its,
-					 struct its_cmd_block *from,
+					 u64	prev_idx,
 					 struct its_cmd_block *to)
 {
-	u64 rd_idx, from_idx, to_idx;
+	u64 rd_idx, to_idx, linear_idx;
 	u32 count = 1000000;	/* 1s! */
 
-	from_idx = its_cmd_ptr_to_offset(its, from);
+	/* Linearize to_idx if the command set has wrapped around */
 	to_idx = its_cmd_ptr_to_offset(its, to);
+	if (to_idx < prev_idx)
+		to_idx += ITS_CMD_QUEUE_SZ;
+
+	linear_idx = prev_idx;
 
 	while (1) {
+		s64 delta;
+
 		rd_idx = readl_relaxed(its->base + GITS_CREADR);
 
-		/* Direct case */
-		if (from_idx < to_idx && rd_idx >= to_idx)
-			break;
+		/*
+		 * Compute the read pointer progress, taking the
+		 * potential wrap-around into account.
+		 */
+		delta = rd_idx - prev_idx;
+		if (rd_idx < prev_idx)
+			delta += ITS_CMD_QUEUE_SZ;
 
-		/* Wrapped case */
-		if (from_idx >= to_idx && rd_idx >= to_idx && rd_idx < from_idx)
+		linear_idx += delta;
+		if (linear_idx >= to_idx)
 			break;
 
 		count--;
 		if (!count) {
-			pr_err_ratelimited("ITS queue timeout (%llu %llu %llu)\n",
-					   from_idx, to_idx, rd_idx);
+			pr_err_ratelimited("ITS queue timeout (%llu %llu)\n",
+					   to_idx, linear_idx);
 			return -1;
 		}
+		prev_idx = rd_idx;
 		cpu_relax();
 		udelay(1);
 	}
@@ -787,6 +798,7 @@ void name(struct its_node *its,						\
 	struct its_cmd_block *cmd, *sync_cmd, *next_cmd;		\
 	synctype *sync_obj;						\
 	unsigned long flags;						\
+	u64 rd_idx;							\
 									\
 	raw_spin_lock_irqsave(&its->lock, flags);			\
 									\
@@ -808,10 +820,11 @@ void name(struct its_node *its,						\
 	}								\
 									\
 post:									\
+	rd_idx = readl_relaxed(its->base + GITS_CREADR);		\
 	next_cmd = its_post_commands(its);				\
 	raw_spin_unlock_irqrestore(&its->lock, flags);			\
 									\
-	if (its_wait_for_range_completion(its, cmd, next_cmd))		\
+	if (its_wait_for_range_completion(its, rd_idx, next_cmd))	\
 		pr_err_ratelimited("ITS cmd %ps failed\n", builder);	\
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/irqchip/irq-meson-gpio.c linux-libre-5.1.21-gnu/drivers/irqchip/irq-meson-gpio.c
--- linux-libre-5.1-gnu/drivers/irqchip/irq-meson-gpio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/irqchip/irq-meson-gpio.c	2019-07-28 02:28:39.000000000 -0400
@@ -73,6 +73,7 @@ static const struct of_device_id meson_i
 	{ .compatible = "amlogic,meson-gxbb-gpio-intc", .data = &gxbb_params },
 	{ .compatible = "amlogic,meson-gxl-gpio-intc", .data = &gxl_params },
 	{ .compatible = "amlogic,meson-axg-gpio-intc", .data = &axg_params },
+	{ .compatible = "amlogic,meson-g12a-gpio-intc", .data = &axg_params },
 	{ }
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/irqchip/irq-mips-gic.c linux-libre-5.1.21-gnu/drivers/irqchip/irq-mips-gic.c
--- linux-libre-5.1-gnu/drivers/irqchip/irq-mips-gic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/irqchip/irq-mips-gic.c	2019-07-28 02:28:39.000000000 -0400
@@ -388,7 +388,7 @@ static void gic_all_vpes_irq_cpu_online(
 	intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
 	cd = irq_data_get_irq_chip_data(d);
 
-	write_gic_vl_map(intr, cd->map);
+	write_gic_vl_map(mips_gic_vx_map_reg(intr), cd->map);
 	if (cd->mask)
 		write_gic_vl_smask(BIT(intr));
 }
@@ -517,7 +517,7 @@ static int gic_irq_domain_map(struct irq
 	spin_lock_irqsave(&gic_lock, flags);
 	for_each_online_cpu(cpu) {
 		write_gic_vl_other(mips_cm_vp_id(cpu));
-		write_gic_vo_map(intr, map);
+		write_gic_vo_map(mips_gic_vx_map_reg(intr), map);
 	}
 	spin_unlock_irqrestore(&gic_lock, flags);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/isdn/gigaset/bas-gigaset.c linux-libre-5.1.21-gnu/drivers/isdn/gigaset/bas-gigaset.c
--- linux-libre-5.1-gnu/drivers/isdn/gigaset/bas-gigaset.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/isdn/gigaset/bas-gigaset.c	2019-07-28 02:28:39.000000000 -0400
@@ -958,6 +958,7 @@ static void write_iso_callback(struct ur
  */
 static int starturbs(struct bc_state *bcs)
 {
+	struct usb_device *udev = bcs->cs->hw.bas->udev;
 	struct bas_bc_state *ubc = bcs->hw.bas;
 	struct urb *urb;
 	int j, k;
@@ -975,8 +976,8 @@ static int starturbs(struct bc_state *bc
 			rc = -EFAULT;
 			goto error;
 		}
-		usb_fill_int_urb(urb, bcs->cs->hw.bas->udev,
-				 usb_rcvisocpipe(urb->dev, 3 + 2 * bcs->channel),
+		usb_fill_int_urb(urb, udev,
+				 usb_rcvisocpipe(udev, 3 + 2 * bcs->channel),
 				 ubc->isoinbuf + k * BAS_INBUFSIZE,
 				 BAS_INBUFSIZE, read_iso_callback, bcs,
 				 BAS_FRAMETIME);
@@ -1006,8 +1007,8 @@ static int starturbs(struct bc_state *bc
 			rc = -EFAULT;
 			goto error;
 		}
-		usb_fill_int_urb(urb, bcs->cs->hw.bas->udev,
-				 usb_sndisocpipe(urb->dev, 4 + 2 * bcs->channel),
+		usb_fill_int_urb(urb, udev,
+				 usb_sndisocpipe(udev, 4 + 2 * bcs->channel),
 				 ubc->isooutbuf->data,
 				 sizeof(ubc->isooutbuf->data),
 				 write_iso_callback, &ubc->isoouturbs[k],
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/isdn/mISDN/socket.c linux-libre-5.1.21-gnu/drivers/isdn/mISDN/socket.c
--- linux-libre-5.1-gnu/drivers/isdn/mISDN/socket.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/isdn/mISDN/socket.c	2019-07-28 02:28:39.000000000 -0400
@@ -393,7 +393,7 @@ data_sock_ioctl(struct socket *sock, uns
 			memcpy(di.channelmap, dev->channelmap,
 			       sizeof(di.channelmap));
 			di.nrbchan = dev->nrbchan;
-			strcpy(di.name, dev_name(&dev->dev));
+			strscpy(di.name, dev_name(&dev->dev), sizeof(di.name));
 			if (copy_to_user((void __user *)arg, &di, sizeof(di)))
 				err = -EFAULT;
 		} else
@@ -676,7 +676,7 @@ base_sock_ioctl(struct socket *sock, uns
 			memcpy(di.channelmap, dev->channelmap,
 			       sizeof(di.channelmap));
 			di.nrbchan = dev->nrbchan;
-			strcpy(di.name, dev_name(&dev->dev));
+			strscpy(di.name, dev_name(&dev->dev), sizeof(di.name));
 			if (copy_to_user((void __user *)arg, &di, sizeof(di)))
 				err = -EFAULT;
 		} else
@@ -690,6 +690,7 @@ base_sock_ioctl(struct socket *sock, uns
 			err = -EFAULT;
 			break;
 		}
+		dn.name[sizeof(dn.name) - 1] = '\0';
 		dev = get_mdevice(dn.id);
 		if (dev)
 			err = device_rename(&dev->dev, dn.name);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/lightnvm/pblk-core.c linux-libre-5.1.21-gnu/drivers/lightnvm/pblk-core.c
--- linux-libre-5.1-gnu/drivers/lightnvm/pblk-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/lightnvm/pblk-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -323,14 +323,16 @@ void pblk_free_rqd(struct pblk *pblk, st
 void pblk_bio_free_pages(struct pblk *pblk, struct bio *bio, int off,
 			 int nr_pages)
 {
-	struct bio_vec bv;
-	int i;
-
-	WARN_ON(off + nr_pages != bio->bi_vcnt);
+	struct bio_vec *bv;
+	struct page *page;
+	int i, e, nbv = 0;
 
-	for (i = off; i < nr_pages + off; i++) {
-		bv = bio->bi_io_vec[i];
-		mempool_free(bv.bv_page, &pblk->page_bio_pool);
+	for (i = 0; i < bio->bi_vcnt; i++) {
+		bv = &bio->bi_io_vec[i];
+		page = bv->bv_page;
+		for (e = 0; e < bv->bv_len; e += PBLK_EXPOSED_PAGE_SIZE, nbv++)
+			if (nbv >= off)
+				mempool_free(page++, &pblk->page_bio_pool);
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mailbox/stm32-ipcc.c linux-libre-5.1.21-gnu/drivers/mailbox/stm32-ipcc.c
--- linux-libre-5.1-gnu/drivers/mailbox/stm32-ipcc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mailbox/stm32-ipcc.c	2019-07-28 02:28:39.000000000 -0400
@@ -8,9 +8,9 @@
 #include <linux/bitfield.h>
 #include <linux/clk.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/mailbox_controller.h>
 #include <linux/module.h>
-#include <linux/of_irq.h>
 #include <linux/platform_device.h>
 #include <linux/pm_wakeirq.h>
 
@@ -240,9 +240,11 @@ static int stm32_ipcc_probe(struct platf
 
 	/* irq */
 	for (i = 0; i < IPCC_IRQ_NUM; i++) {
-		ipcc->irqs[i] = of_irq_get_byname(dev->of_node, irq_name[i]);
+		ipcc->irqs[i] = platform_get_irq_byname(pdev, irq_name[i]);
 		if (ipcc->irqs[i] < 0) {
-			dev_err(dev, "no IRQ specified %s\n", irq_name[i]);
+			if (ipcc->irqs[i] != -EPROBE_DEFER)
+				dev_err(dev, "no IRQ specified %s\n",
+					irq_name[i]);
 			ret = ipcc->irqs[i];
 			goto err_clk;
 		}
@@ -263,9 +265,10 @@ static int stm32_ipcc_probe(struct platf
 
 	/* wakeup */
 	if (of_property_read_bool(np, "wakeup-source")) {
-		ipcc->wkp = of_irq_get_byname(dev->of_node, "wakeup");
+		ipcc->wkp = platform_get_irq_byname(pdev, "wakeup");
 		if (ipcc->wkp < 0) {
-			dev_err(dev, "could not get wakeup IRQ\n");
+			if (ipcc->wkp != -EPROBE_DEFER)
+				dev_err(dev, "could not get wakeup IRQ\n");
 			ret = ipcc->wkp;
 			goto err_clk;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/alloc.c linux-libre-5.1.21-gnu/drivers/md/bcache/alloc.c
--- linux-libre-5.1-gnu/drivers/md/bcache/alloc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/alloc.c	2019-07-28 02:28:39.000000000 -0400
@@ -327,10 +327,11 @@ static int bch_allocator_thread(void *ar
 		 * possibly issue discards to them, then we add the bucket to
 		 * the free list:
 		 */
-		while (!fifo_empty(&ca->free_inc)) {
+		while (1) {
 			long bucket;
 
-			fifo_pop(&ca->free_inc, bucket);
+			if (!fifo_pop(&ca->free_inc, bucket))
+				break;
 
 			if (ca->discard) {
 				mutex_unlock(&ca->set->bucket_lock);
@@ -392,6 +393,11 @@ long bch_bucket_alloc(struct cache *ca,
 	struct bucket *b;
 	long r;
 
+
+	/* No allocation if CACHE_SET_IO_DISABLE bit is set */
+	if (unlikely(test_bit(CACHE_SET_IO_DISABLE, &ca->set->flags)))
+		return -1;
+
 	/* fastpath */
 	if (fifo_pop(&ca->free[RESERVE_NONE], r) ||
 	    fifo_pop(&ca->free[reserve], r))
@@ -483,6 +489,10 @@ int __bch_bucket_alloc_set(struct cache_
 {
 	int i;
 
+	/* No allocation if CACHE_SET_IO_DISABLE bit is set */
+	if (unlikely(test_bit(CACHE_SET_IO_DISABLE, &c->flags)))
+		return -1;
+
 	lockdep_assert_held(&c->bucket_lock);
 	BUG_ON(!n || n > c->caches_loaded || n > MAX_CACHES_PER_SET);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/bcache.h linux-libre-5.1.21-gnu/drivers/md/bcache/bcache.h
--- linux-libre-5.1-gnu/drivers/md/bcache/bcache.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/bcache.h	2019-07-28 02:28:39.000000000 -0400
@@ -726,8 +726,6 @@ struct cache_set {
 
 #define BUCKET_HASH_BITS	12
 	struct hlist_head	bucket_hash[1 << BUCKET_HASH_BITS];
-
-	DECLARE_HEAP(struct btree *, flush_btree);
 };
 
 struct bbio {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/bset.c linux-libre-5.1.21-gnu/drivers/md/bcache/bset.c
--- linux-libre-5.1-gnu/drivers/md/bcache/bset.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/bset.c	2019-07-28 02:28:39.000000000 -0400
@@ -887,12 +887,22 @@ unsigned int bch_btree_insert_key(struct
 	struct bset *i = bset_tree_last(b)->data;
 	struct bkey *m, *prev = NULL;
 	struct btree_iter iter;
+	struct bkey preceding_key_on_stack = ZERO_KEY;
+	struct bkey *preceding_key_p = &preceding_key_on_stack;
 
 	BUG_ON(b->ops->is_extents && !KEY_SIZE(k));
 
-	m = bch_btree_iter_init(b, &iter, b->ops->is_extents
-				? PRECEDING_KEY(&START_KEY(k))
-				: PRECEDING_KEY(k));
+	/*
+	 * If k has preceding key, preceding_key_p will be set to address
+	 *  of k's preceding key; otherwise preceding_key_p will be set
+	 * to NULL inside preceding_key().
+	 */
+	if (b->ops->is_extents)
+		preceding_key(&START_KEY(k), &preceding_key_p);
+	else
+		preceding_key(k, &preceding_key_p);
+
+	m = bch_btree_iter_init(b, &iter, preceding_key_p);
 
 	if (b->ops->insert_fixup(b, k, &iter, replace_key))
 		return status;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/bset.h linux-libre-5.1.21-gnu/drivers/md/bcache/bset.h
--- linux-libre-5.1-gnu/drivers/md/bcache/bset.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/bset.h	2019-07-28 02:28:39.000000000 -0400
@@ -434,20 +434,26 @@ static inline bool bch_cut_back(const st
 	return __bch_cut_back(where, k);
 }
 
-#define PRECEDING_KEY(_k)					\
-({								\
-	struct bkey *_ret = NULL;				\
-								\
-	if (KEY_INODE(_k) || KEY_OFFSET(_k)) {			\
-		_ret = &KEY(KEY_INODE(_k), KEY_OFFSET(_k), 0);	\
-								\
-		if (!_ret->low)					\
-			_ret->high--;				\
-		_ret->low--;					\
-	}							\
-								\
-	_ret;							\
-})
+/*
+ * Pointer '*preceding_key_p' points to a memory object to store preceding
+ * key of k. If the preceding key does not exist, set '*preceding_key_p' to
+ * NULL. So the caller of preceding_key() needs to take care of memory
+ * which '*preceding_key_p' pointed to before calling preceding_key().
+ * Currently the only caller of preceding_key() is bch_btree_insert_key(),
+ * and it points to an on-stack variable, so the memory release is handled
+ * by stackframe itself.
+ */
+static inline void preceding_key(struct bkey *k, struct bkey **preceding_key_p)
+{
+	if (KEY_INODE(k) || KEY_OFFSET(k)) {
+		(**preceding_key_p) = KEY(KEY_INODE(k), KEY_OFFSET(k), 0);
+		if (!(*preceding_key_p)->low)
+			(*preceding_key_p)->high--;
+		(*preceding_key_p)->low--;
+	} else {
+		(*preceding_key_p) = NULL;
+	}
+}
 
 static inline bool bch_ptr_invalid(struct btree_keys *b, const struct bkey *k)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/io.c linux-libre-5.1.21-gnu/drivers/md/bcache/io.c
--- linux-libre-5.1-gnu/drivers/md/bcache/io.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/io.c	2019-07-28 02:28:39.000000000 -0400
@@ -58,6 +58,18 @@ void bch_count_backing_io_errors(struct
 
 	WARN_ONCE(!dc, "NULL pointer of struct cached_dev");
 
+	/*
+	 * Read-ahead requests on a degrading and recovering md raid
+	 * (e.g. raid6) device might be failured immediately by md
+	 * raid code, which is not a real hardware media failure. So
+	 * we shouldn't count failed REQ_RAHEAD bio to dc->io_errors.
+	 */
+	if (bio->bi_opf & REQ_RAHEAD) {
+		pr_warn_ratelimited("%s: Read-ahead I/O failed on backing device, ignore",
+				    dc->backing_dev_name);
+		return;
+	}
+
 	errors = atomic_add_return(1, &dc->io_errors);
 	if (errors < dc->error_limit)
 		pr_err("%s: IO error on backing device, unrecoverable",
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/journal.c linux-libre-5.1.21-gnu/drivers/md/bcache/journal.c
--- linux-libre-5.1-gnu/drivers/md/bcache/journal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/journal.c	2019-07-28 02:28:39.000000000 -0400
@@ -317,6 +317,18 @@ void bch_journal_mark(struct cache_set *
 	}
 }
 
+bool is_discard_enabled(struct cache_set *s)
+{
+	struct cache *ca;
+	unsigned int i;
+
+	for_each_cache(ca, s, i)
+		if (ca->discard)
+			return true;
+
+	return false;
+}
+
 int bch_journal_replay(struct cache_set *s, struct list_head *list)
 {
 	int ret = 0, keys = 0, entries = 0;
@@ -330,9 +342,17 @@ int bch_journal_replay(struct cache_set
 	list_for_each_entry(i, list, list) {
 		BUG_ON(i->pin && atomic_read(i->pin) != 1);
 
-		cache_set_err_on(n != i->j.seq, s,
-"bcache: journal entries %llu-%llu missing! (replaying %llu-%llu)",
-				 n, i->j.seq - 1, start, end);
+		if (n != i->j.seq) {
+			if (n == start && is_discard_enabled(s))
+				pr_info("bcache: journal entries %llu-%llu may be discarded! (replaying %llu-%llu)",
+					n, i->j.seq - 1, start, end);
+			else {
+				pr_err("bcache: journal entries %llu-%llu missing! (replaying %llu-%llu)",
+					n, i->j.seq - 1, start, end);
+				ret = -EIO;
+				goto err;
+			}
+		}
 
 		for (k = i->j.start;
 		     k < bset_bkey_last(&i->j);
@@ -370,12 +390,6 @@ err:
 }
 
 /* Journalling */
-#define journal_max_cmp(l, r) \
-	(fifo_idx(&c->journal.pin, btree_current_write(l)->journal) < \
-	 fifo_idx(&(c)->journal.pin, btree_current_write(r)->journal))
-#define journal_min_cmp(l, r) \
-	(fifo_idx(&c->journal.pin, btree_current_write(l)->journal) > \
-	 fifo_idx(&(c)->journal.pin, btree_current_write(r)->journal))
 
 static void btree_flush_write(struct cache_set *c)
 {
@@ -383,35 +397,25 @@ static void btree_flush_write(struct cac
 	 * Try to find the btree node with that references the oldest journal
 	 * entry, best is our current candidate and is locked if non NULL:
 	 */
-	struct btree *b;
-	int i;
+	struct btree *b, *best;
+	unsigned int i;
 
 	atomic_long_inc(&c->flush_write);
-
 retry:
-	spin_lock(&c->journal.lock);
-	if (heap_empty(&c->flush_btree)) {
-		for_each_cached_btree(b, c, i)
-			if (btree_current_write(b)->journal) {
-				if (!heap_full(&c->flush_btree))
-					heap_add(&c->flush_btree, b,
-						 journal_max_cmp);
-				else if (journal_max_cmp(b,
-					 heap_peek(&c->flush_btree))) {
-					c->flush_btree.data[0] = b;
-					heap_sift(&c->flush_btree, 0,
-						  journal_max_cmp);
-				}
-			}
-
-		for (i = c->flush_btree.used / 2 - 1; i >= 0; --i)
-			heap_sift(&c->flush_btree, i, journal_min_cmp);
-	}
+	best = NULL;
 
-	b = NULL;
-	heap_pop(&c->flush_btree, b, journal_min_cmp);
-	spin_unlock(&c->journal.lock);
+	for_each_cached_btree(b, c, i)
+		if (btree_current_write(b)->journal) {
+			if (!best)
+				best = b;
+			else if (journal_pin_cmp(c,
+					btree_current_write(best)->journal,
+					btree_current_write(b)->journal)) {
+				best = b;
+			}
+		}
 
+	b = best;
 	if (b) {
 		mutex_lock(&b->write_lock);
 		if (!btree_current_write(b)->journal) {
@@ -540,11 +544,11 @@ static void journal_reclaim(struct cache
 				  ca->sb.nr_this_dev);
 	}
 
-	bkey_init(k);
-	SET_KEY_PTRS(k, n);
-
-	if (n)
+	if (n) {
+		bkey_init(k);
+		SET_KEY_PTRS(k, n);
 		c->journal.blocks_free = c->sb.bucket_size >> c->block_bits;
+	}
 out:
 	if (!journal_full(&c->journal))
 		__closure_wake_up(&c->journal.wait);
@@ -671,6 +675,9 @@ static void journal_write_unlocked(struc
 		ca->journal.seq[ca->journal.cur_idx] = w->data->seq;
 	}
 
+	/* If KEY_PTRS(k) == 0, this jset gets lost in air */
+	BUG_ON(i == 0);
+
 	atomic_dec_bug(&fifo_back(&c->journal.pin));
 	bch_journal_next(&c->journal);
 	journal_reclaim(c);
@@ -787,6 +794,10 @@ atomic_t *bch_journal(struct cache_set *
 	struct journal_write *w;
 	atomic_t *ret;
 
+	/* No journaling if CACHE_SET_IO_DISABLE set already */
+	if (unlikely(test_bit(CACHE_SET_IO_DISABLE, &c->flags)))
+		return NULL;
+
 	if (!CACHE_SYNC(&c->sb))
 		return NULL;
 
@@ -831,7 +842,6 @@ void bch_journal_free(struct cache_set *
 	free_pages((unsigned long) c->journal.w[1].data, JSET_BITS);
 	free_pages((unsigned long) c->journal.w[0].data, JSET_BITS);
 	free_fifo(&c->journal.pin);
-	free_heap(&c->flush_btree);
 }
 
 int bch_journal_alloc(struct cache_set *c)
@@ -846,8 +856,7 @@ int bch_journal_alloc(struct cache_set *
 	j->w[0].c = c;
 	j->w[1].c = c;
 
-	if (!(init_heap(&c->flush_btree, 128, GFP_KERNEL)) ||
-	    !(init_fifo(&j->pin, JOURNAL_PIN, GFP_KERNEL)) ||
+	if (!(init_fifo(&j->pin, JOURNAL_PIN, GFP_KERNEL)) ||
 	    !(j->w[0].data = (void *) __get_free_pages(GFP_KERNEL, JSET_BITS)) ||
 	    !(j->w[1].data = (void *) __get_free_pages(GFP_KERNEL, JSET_BITS)))
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/super.c linux-libre-5.1.21-gnu/drivers/md/bcache/super.c
--- linux-libre-5.1-gnu/drivers/md/bcache/super.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/super.c	2019-07-28 02:28:39.000000000 -0400
@@ -1186,18 +1186,16 @@ static void cached_dev_free(struct closu
 {
 	struct cached_dev *dc = container_of(cl, struct cached_dev, disk.cl);
 
-	mutex_lock(&bch_register_lock);
-
 	if (test_and_clear_bit(BCACHE_DEV_WB_RUNNING, &dc->disk.flags))
 		cancel_writeback_rate_update_dwork(dc);
 
 	if (!IS_ERR_OR_NULL(dc->writeback_thread))
 		kthread_stop(dc->writeback_thread);
-	if (dc->writeback_write_wq)
-		destroy_workqueue(dc->writeback_write_wq);
 	if (!IS_ERR_OR_NULL(dc->status_update_thread))
 		kthread_stop(dc->status_update_thread);
 
+	mutex_lock(&bch_register_lock);
+
 	if (atomic_read(&dc->running))
 		bd_unlink_disk_holder(dc->bdev, dc->disk.disk);
 	bcache_device_free(&dc->disk);
@@ -1431,8 +1429,6 @@ int bch_flash_dev_create(struct cache_se
 
 bool bch_cached_dev_error(struct cached_dev *dc)
 {
-	struct cache_set *c;
-
 	if (!dc || test_bit(BCACHE_DEV_CLOSING, &dc->disk.flags))
 		return false;
 
@@ -1443,21 +1439,6 @@ bool bch_cached_dev_error(struct cached_
 	pr_err("stop %s: too many IO errors on backing device %s\n",
 		dc->disk.disk->disk_name, dc->backing_dev_name);
 
-	/*
-	 * If the cached device is still attached to a cache set,
-	 * even dc->io_disable is true and no more I/O requests
-	 * accepted, cache device internal I/O (writeback scan or
-	 * garbage collection) may still prevent bcache device from
-	 * being stopped. So here CACHE_SET_IO_DISABLE should be
-	 * set to c->flags too, to make the internal I/O to cache
-	 * device rejected and stopped immediately.
-	 * If c is NULL, that means the bcache device is not attached
-	 * to any cache set, then no CACHE_SET_IO_DISABLE bit to set.
-	 */
-	c = dc->disk.c;
-	if (c && test_and_set_bit(CACHE_SET_IO_DISABLE, &c->flags))
-		pr_info("CACHE_SET_IO_DISABLE already set");
-
 	bcache_device_stop(&dc->disk);
 	return true;
 }
@@ -1516,6 +1497,7 @@ static void cache_set_free(struct closur
 	bch_btree_cache_free(c);
 	bch_journal_free(c);
 
+	mutex_lock(&bch_register_lock);
 	for_each_cache(ca, c, i)
 		if (ca) {
 			ca->set = NULL;
@@ -1534,7 +1516,6 @@ static void cache_set_free(struct closur
 	mempool_exit(&c->search);
 	kfree(c->devices);
 
-	mutex_lock(&bch_register_lock);
 	list_del(&c->list);
 	mutex_unlock(&bch_register_lock);
 
@@ -1557,7 +1538,7 @@ static void cache_set_flush(struct closu
 	kobject_put(&c->internal);
 	kobject_del(&c->kobj);
 
-	if (c->gc_thread)
+	if (!IS_ERR_OR_NULL(c->gc_thread))
 		kthread_stop(c->gc_thread);
 
 	if (!IS_ERR_OR_NULL(c->root))
@@ -1775,13 +1756,15 @@ err:
 	return NULL;
 }
 
-static void run_cache_set(struct cache_set *c)
+static int run_cache_set(struct cache_set *c)
 {
 	const char *err = "cannot allocate memory";
 	struct cached_dev *dc, *t;
 	struct cache *ca;
 	struct closure cl;
 	unsigned int i;
+	LIST_HEAD(journal);
+	struct journal_replay *l;
 
 	closure_init_stack(&cl);
 
@@ -1869,7 +1852,9 @@ static void run_cache_set(struct cache_s
 		if (j->version < BCACHE_JSET_VERSION_UUID)
 			__uuid_write(c);
 
-		bch_journal_replay(c, &journal);
+		err = "bcache: replay journal failed";
+		if (bch_journal_replay(c, &journal))
+			goto err;
 	} else {
 		pr_notice("invalidating existing data");
 
@@ -1937,11 +1922,19 @@ static void run_cache_set(struct cache_s
 	flash_devs_run(c);
 
 	set_bit(CACHE_SET_RUNNING, &c->flags);
-	return;
+	return 0;
 err:
+	while (!list_empty(&journal)) {
+		l = list_first_entry(&journal, struct journal_replay, list);
+		list_del(&l->list);
+		kfree(l);
+	}
+
 	closure_sync(&cl);
 	/* XXX: test this, it's broken */
 	bch_cache_set_error(c, "%s", err);
+
+	return -EIO;
 }
 
 static bool can_attach_cache(struct cache *ca, struct cache_set *c)
@@ -2005,8 +1998,11 @@ found:
 	ca->set->cache[ca->sb.nr_this_dev] = ca;
 	c->cache_by_alloc[c->caches_loaded++] = ca;
 
-	if (c->caches_loaded == c->sb.nr_in_set)
-		run_cache_set(c);
+	if (c->caches_loaded == c->sb.nr_in_set) {
+		err = "failed to run cache set";
+		if (run_cache_set(c) < 0)
+			goto err;
+	}
 
 	return NULL;
 err:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/sysfs.c linux-libre-5.1.21-gnu/drivers/md/bcache/sysfs.c
--- linux-libre-5.1-gnu/drivers/md/bcache/sysfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/sysfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -180,7 +180,7 @@ SHOW(__bch_cached_dev)
 	var_print(writeback_percent);
 	sysfs_hprint(writeback_rate,
 		     wb ? atomic_long_read(&dc->writeback_rate.rate) << 9 : 0);
-	sysfs_hprint(io_errors,		atomic_read(&dc->io_errors));
+	sysfs_printf(io_errors,		"%i", atomic_read(&dc->io_errors));
 	sysfs_printf(io_error_limit,	"%i", dc->error_limit);
 	sysfs_printf(io_disable,	"%i", dc->io_disable);
 	var_print(writeback_rate_update_seconds);
@@ -431,8 +431,13 @@ STORE(bch_cached_dev)
 			bch_writeback_queue(dc);
 	}
 
+	/*
+	 * Only set BCACHE_DEV_WB_RUNNING when cached device attached to
+	 * a cache set, otherwise it doesn't make sense.
+	 */
 	if (attr == &sysfs_writeback_percent)
-		if (!test_and_set_bit(BCACHE_DEV_WB_RUNNING, &dc->disk.flags))
+		if ((dc->disk.c != NULL) &&
+		    (!test_and_set_bit(BCACHE_DEV_WB_RUNNING, &dc->disk.flags)))
 			schedule_delayed_work(&dc->writeback_rate_update,
 				      dc->writeback_rate_update_seconds * HZ);
 
@@ -459,7 +464,7 @@ static struct attribute *bch_cached_dev_
 	&sysfs_writeback_rate_p_term_inverse,
 	&sysfs_writeback_rate_minimum,
 	&sysfs_writeback_rate_debug,
-	&sysfs_errors,
+	&sysfs_io_errors,
 	&sysfs_io_error_limit,
 	&sysfs_io_disable,
 	&sysfs_dirty_data,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/util.h linux-libre-5.1.21-gnu/drivers/md/bcache/util.h
--- linux-libre-5.1-gnu/drivers/md/bcache/util.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/util.h	2019-07-28 02:28:39.000000000 -0400
@@ -113,8 +113,6 @@ do {									\
 
 #define heap_full(h)	((h)->used == (h)->size)
 
-#define heap_empty(h)	((h)->used == 0)
-
 #define DECLARE_FIFO(type, name)					\
 	struct {							\
 		size_t front, back, size, mask;				\
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/bcache/writeback.c linux-libre-5.1.21-gnu/drivers/md/bcache/writeback.c
--- linux-libre-5.1-gnu/drivers/md/bcache/writeback.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/bcache/writeback.c	2019-07-28 02:28:39.000000000 -0400
@@ -735,6 +735,10 @@ static int bch_writeback_thread(void *ar
 		}
 	}
 
+	if (dc->writeback_write_wq) {
+		flush_workqueue(dc->writeback_write_wq);
+		destroy_workqueue(dc->writeback_write_wq);
+	}
 	cached_dev_put(dc);
 	wait_for_kthread_stop();
 
@@ -830,6 +834,7 @@ int bch_cached_dev_writeback_start(struc
 					      "bcache_writeback");
 	if (IS_ERR(dc->writeback_thread)) {
 		cached_dev_put(dc);
+		destroy_workqueue(dc->writeback_write_wq);
 		return PTR_ERR(dc->writeback_thread);
 	}
 	dc->writeback_running = true;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-bufio.c linux-libre-5.1.21-gnu/drivers/md/dm-bufio.c
--- linux-libre-5.1-gnu/drivers/md/dm-bufio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-bufio.c	2019-07-28 02:28:39.000000000 -0400
@@ -1602,9 +1602,7 @@ dm_bufio_shrink_scan(struct shrinker *sh
 	unsigned long freed;
 
 	c = container_of(shrink, struct dm_bufio_client, shrinker);
-	if (sc->gfp_mask & __GFP_FS)
-		dm_bufio_lock(c);
-	else if (!dm_bufio_trylock(c))
+	if (!dm_bufio_trylock(c))
 		return SHRINK_STOP;
 
 	freed  = __scan(c, sc->nr_to_scan, sc->gfp_mask);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm.c linux-libre-5.1.21-gnu/drivers/md/dm.c
--- linux-libre-5.1-gnu/drivers/md/dm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm.c	2019-07-28 02:28:39.000000000 -0400
@@ -1105,6 +1105,25 @@ static long dm_dax_direct_access(struct
 	return ret;
 }
 
+static bool dm_dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
+		int blocksize, sector_t start, sector_t len)
+{
+	struct mapped_device *md = dax_get_private(dax_dev);
+	struct dm_table *map;
+	int srcu_idx;
+	bool ret;
+
+	map = dm_get_live_table(md, &srcu_idx);
+	if (!map)
+		return false;
+
+	ret = dm_table_supports_dax(map, blocksize);
+
+	dm_put_live_table(md, srcu_idx);
+
+	return ret;
+}
+
 static size_t dm_dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
 				    void *addr, size_t bytes, struct iov_iter *i)
 {
@@ -1467,7 +1486,7 @@ static unsigned get_num_write_zeroes_bio
 static int __send_changing_extent_only(struct clone_info *ci, struct dm_target *ti,
 				       unsigned num_bios)
 {
-	unsigned len = ci->sector_count;
+	unsigned len;
 
 	/*
 	 * Even though the device advertised support for this type of
@@ -1478,6 +1497,8 @@ static int __send_changing_extent_only(s
 	if (!num_bios)
 		return -EOPNOTSUPP;
 
+	len = min((sector_t)ci->sector_count, max_io_len_target_boundary(ci->sector, ti));
+
 	__send_duplicate_bios(ci, ti, num_bios, &len);
 
 	ci->sector += len;
@@ -3192,6 +3213,7 @@ static const struct block_device_operati
 
 static const struct dax_operations dm_dax_ops = {
 	.direct_access = dm_dax_direct_access,
+	.dax_supported = dm_dax_supported,
 	.copy_from_iter = dm_dax_copy_from_iter,
 	.copy_to_iter = dm_dax_copy_to_iter,
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-cache-metadata.c linux-libre-5.1.21-gnu/drivers/md/dm-cache-metadata.c
--- linux-libre-5.1-gnu/drivers/md/dm-cache-metadata.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-cache-metadata.c	2019-07-28 02:28:39.000000000 -0400
@@ -1167,11 +1167,18 @@ static int __load_discards(struct dm_cac
 		if (r)
 			return r;
 
-		for (b = 0; b < from_dblock(cmd->discard_nr_blocks); b++) {
+		for (b = 0; ; b++) {
 			r = fn(context, cmd->discard_block_size, to_dblock(b),
 			       dm_bitset_cursor_get_value(&c));
 			if (r)
 				break;
+
+			if (b >= (from_dblock(cmd->discard_nr_blocks) - 1))
+				break;
+
+			r = dm_bitset_cursor_next(&c);
+			if (r)
+				break;
 		}
 
 		dm_bitset_cursor_end(&c);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-crypt.c linux-libre-5.1.21-gnu/drivers/md/dm-crypt.c
--- linux-libre-5.1-gnu/drivers/md/dm-crypt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-crypt.c	2019-07-28 02:28:39.000000000 -0400
@@ -949,6 +949,7 @@ static int crypt_integrity_ctr(struct cr
 {
 #ifdef CONFIG_BLK_DEV_INTEGRITY
 	struct blk_integrity *bi = blk_get_integrity(cc->dev->bdev->bd_disk);
+	struct mapped_device *md = dm_table_get_md(ti->table);
 
 	/* From now we require underlying device with our integrity profile */
 	if (!bi || strcasecmp(bi->profile->name, "DM-DIF-EXT-TAG")) {
@@ -968,7 +969,7 @@ static int crypt_integrity_ctr(struct cr
 
 	if (crypt_integrity_aead(cc)) {
 		cc->integrity_tag_size = cc->on_disk_tag_size - cc->integrity_iv_size;
-		DMINFO("Integrity AEAD, tag size %u, IV size %u.",
+		DMDEBUG("%s: Integrity AEAD, tag size %u, IV size %u.", dm_device_name(md),
 		       cc->integrity_tag_size, cc->integrity_iv_size);
 
 		if (crypto_aead_setauthsize(any_tfm_aead(cc), cc->integrity_tag_size)) {
@@ -976,7 +977,7 @@ static int crypt_integrity_ctr(struct cr
 			return -EINVAL;
 		}
 	} else if (cc->integrity_iv_size)
-		DMINFO("Additional per-sector space %u bytes for IV.",
+		DMDEBUG("%s: Additional per-sector space %u bytes for IV.", dm_device_name(md),
 		       cc->integrity_iv_size);
 
 	if ((cc->integrity_tag_size + cc->integrity_iv_size) != bi->tag_size) {
@@ -1891,7 +1892,7 @@ static int crypt_alloc_tfms_skcipher(str
 	 * algorithm implementation is used.  Help people debug performance
 	 * problems by logging the ->cra_driver_name.
 	 */
-	DMINFO("%s using implementation \"%s\"", ciphermode,
+	DMDEBUG_LIMIT("%s using implementation \"%s\"", ciphermode,
 	       crypto_skcipher_alg(any_tfm(cc))->base.cra_driver_name);
 	return 0;
 }
@@ -1911,7 +1912,7 @@ static int crypt_alloc_tfms_aead(struct
 		return err;
 	}
 
-	DMINFO("%s using implementation \"%s\"", ciphermode,
+	DMDEBUG_LIMIT("%s using implementation \"%s\"", ciphermode,
 	       crypto_aead_alg(any_tfm_aead(cc))->base.cra_driver_name);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-delay.c linux-libre-5.1.21-gnu/drivers/md/dm-delay.c
--- linux-libre-5.1-gnu/drivers/md/dm-delay.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-delay.c	2019-07-28 02:28:39.000000000 -0400
@@ -121,7 +121,8 @@ static void delay_dtr(struct dm_target *
 {
 	struct delay_c *dc = ti->private;
 
-	destroy_workqueue(dc->kdelayd_wq);
+	if (dc->kdelayd_wq)
+		destroy_workqueue(dc->kdelayd_wq);
 
 	if (dc->read.dev)
 		dm_put_device(ti, dc->read.dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm.h linux-libre-5.1.21-gnu/drivers/md/dm.h
--- linux-libre-5.1-gnu/drivers/md/dm.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm.h	2019-07-28 02:28:39.000000000 -0400
@@ -72,6 +72,7 @@ bool dm_table_bio_based(struct dm_table
 bool dm_table_request_based(struct dm_table *t);
 void dm_table_free_md_mempools(struct dm_table *t);
 struct dm_md_mempools *dm_table_get_md_mempools(struct dm_table *t);
+bool dm_table_supports_dax(struct dm_table *t, int blocksize);
 
 void dm_lock_md_type(struct mapped_device *md);
 void dm_unlock_md_type(struct mapped_device *md);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-init.c linux-libre-5.1.21-gnu/drivers/md/dm-init.c
--- linux-libre-5.1-gnu/drivers/md/dm-init.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-init.c	2019-07-28 02:28:39.000000000 -0400
@@ -140,8 +140,8 @@ static char __init *dm_parse_table_entry
 		return ERR_PTR(-EINVAL);
 	}
 	/* target_args */
-	dev->target_args_array[n] = kstrndup(field[3], GFP_KERNEL,
-					     DM_MAX_STR_SIZE);
+	dev->target_args_array[n] = kstrndup(field[3], DM_MAX_STR_SIZE,
+					     GFP_KERNEL);
 	if (!dev->target_args_array[n])
 		return ERR_PTR(-ENOMEM);
 
@@ -160,7 +160,7 @@ static int __init dm_parse_table(struct
 
 	while (table_entry) {
 		DMDEBUG("parsing table \"%s\"", str);
-		if (++dev->dmi.target_count >= DM_MAX_TARGETS) {
+		if (++dev->dmi.target_count > DM_MAX_TARGETS) {
 			DMERR("too many targets %u > %d",
 			      dev->dmi.target_count, DM_MAX_TARGETS);
 			return -EINVAL;
@@ -242,9 +242,9 @@ static int __init dm_parse_devices(struc
 			return -ENOMEM;
 		list_add_tail(&dev->list, devices);
 
-		if (++ndev >= DM_MAX_DEVICES) {
-			DMERR("too many targets %u > %d",
-			      dev->dmi.target_count, DM_MAX_TARGETS);
+		if (++ndev > DM_MAX_DEVICES) {
+			DMERR("too many devices %lu > %d",
+			      ndev, DM_MAX_DEVICES);
 			return -EINVAL;
 		}
 
@@ -275,7 +275,7 @@ static int __init dm_init_init(void)
 		DMERR("Argument is too big. Limit is %d\n", DM_MAX_STR_SIZE);
 		return -EINVAL;
 	}
-	str = kstrndup(create, GFP_KERNEL, DM_MAX_STR_SIZE);
+	str = kstrndup(create, DM_MAX_STR_SIZE, GFP_KERNEL);
 	if (!str)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-integrity.c linux-libre-5.1.21-gnu/drivers/md/dm-integrity.c
--- linux-libre-5.1-gnu/drivers/md/dm-integrity.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-integrity.c	2019-07-28 02:28:39.000000000 -0400
@@ -2568,7 +2568,7 @@ static int calculate_device_limits(struc
 		if (last_sector < ic->start || last_sector >= ic->meta_device_sectors)
 			return -EINVAL;
 	} else {
-		__u64 meta_size = ic->provided_data_sectors * ic->tag_size;
+		__u64 meta_size = (ic->provided_data_sectors >> ic->sb->log2_sectors_per_block) * ic->tag_size;
 		meta_size = (meta_size + ((1U << (ic->log2_buffer_sectors + SECTOR_SHIFT)) - 1))
 				>> (ic->log2_buffer_sectors + SECTOR_SHIFT);
 		meta_size <<= ic->log2_buffer_sectors;
@@ -3439,7 +3439,7 @@ try_smaller_buffer:
 	DEBUG_print("	journal_sections %u\n", (unsigned)le32_to_cpu(ic->sb->journal_sections));
 	DEBUG_print("	journal_entries %u\n", ic->journal_entries);
 	DEBUG_print("	log2_interleave_sectors %d\n", ic->sb->log2_interleave_sectors);
-	DEBUG_print("	device_sectors 0x%llx\n", (unsigned long long)ic->device_sectors);
+	DEBUG_print("	data_device_sectors 0x%llx\n", (unsigned long long)ic->data_device_sectors);
 	DEBUG_print("	initial_sectors 0x%x\n", ic->initial_sectors);
 	DEBUG_print("	metadata_run 0x%x\n", ic->metadata_run);
 	DEBUG_print("	log2_metadata_run %d\n", ic->log2_metadata_run);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-ioctl.c linux-libre-5.1.21-gnu/drivers/md/dm-ioctl.c
--- linux-libre-5.1-gnu/drivers/md/dm-ioctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-ioctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -2069,7 +2069,7 @@ int __init dm_early_create(struct dm_ioc
 	/* alloc table */
 	r = dm_table_create(&t, get_mode(dmi), dmi->target_count, md);
 	if (r)
-		goto err_destroy_dm;
+		goto err_hash_remove;
 
 	/* add targets */
 	for (i = 0; i < dmi->target_count; i++) {
@@ -2116,6 +2116,10 @@ int __init dm_early_create(struct dm_ioc
 
 err_destroy_table:
 	dm_table_destroy(t);
+err_hash_remove:
+	(void) __hash_remove(__get_name_cell(dmi->name));
+	/* release reference from __get_name_cell */
+	dm_put(md);
 err_destroy_dm:
 	dm_put(md);
 	dm_destroy(md);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-log-writes.c linux-libre-5.1.21-gnu/drivers/md/dm-log-writes.c
--- linux-libre-5.1-gnu/drivers/md/dm-log-writes.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-log-writes.c	2019-07-28 02:28:39.000000000 -0400
@@ -60,6 +60,7 @@
 
 #define WRITE_LOG_VERSION 1ULL
 #define WRITE_LOG_MAGIC 0x6a736677736872ULL
+#define WRITE_LOG_SUPER_SECTOR 0
 
 /*
  * The disk format for this is braindead simple.
@@ -115,6 +116,7 @@ struct log_writes_c {
 	struct list_head logging_blocks;
 	wait_queue_head_t wait;
 	struct task_struct *log_kthread;
+	struct completion super_done;
 };
 
 struct pending_block {
@@ -180,6 +182,14 @@ static void log_end_io(struct bio *bio)
 	bio_put(bio);
 }
 
+static void log_end_super(struct bio *bio)
+{
+	struct log_writes_c *lc = bio->bi_private;
+
+	complete(&lc->super_done);
+	log_end_io(bio);
+}
+
 /*
  * Meant to be called if there is an error, it will free all the pages
  * associated with the block.
@@ -215,7 +225,8 @@ static int write_metadata(struct log_wri
 	bio->bi_iter.bi_size = 0;
 	bio->bi_iter.bi_sector = sector;
 	bio_set_dev(bio, lc->logdev->bdev);
-	bio->bi_end_io = log_end_io;
+	bio->bi_end_io = (sector == WRITE_LOG_SUPER_SECTOR) ?
+			  log_end_super : log_end_io;
 	bio->bi_private = lc;
 	bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
 
@@ -418,11 +429,18 @@ static int log_super(struct log_writes_c
 	super.nr_entries = cpu_to_le64(lc->logged_entries);
 	super.sectorsize = cpu_to_le32(lc->sectorsize);
 
-	if (write_metadata(lc, &super, sizeof(super), NULL, 0, 0)) {
+	if (write_metadata(lc, &super, sizeof(super), NULL, 0,
+			   WRITE_LOG_SUPER_SECTOR)) {
 		DMERR("Couldn't write super");
 		return -1;
 	}
 
+	/*
+	 * Super sector should be writen in-order, otherwise the
+	 * nr_entries could be rewritten incorrectly by an old bio.
+	 */
+	wait_for_completion_io(&lc->super_done);
+
 	return 0;
 }
 
@@ -531,6 +549,7 @@ static int log_writes_ctr(struct dm_targ
 	INIT_LIST_HEAD(&lc->unflushed_blocks);
 	INIT_LIST_HEAD(&lc->logging_blocks);
 	init_waitqueue_head(&lc->wait);
+	init_completion(&lc->super_done);
 	atomic_set(&lc->io_blocks, 0);
 	atomic_set(&lc->pending_blocks, 0);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-mpath.c linux-libre-5.1.21-gnu/drivers/md/dm-mpath.c
--- linux-libre-5.1-gnu/drivers/md/dm-mpath.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-mpath.c	2019-07-28 02:28:39.000000000 -0400
@@ -882,6 +882,7 @@ static struct pgpath *parse_path(struct
 	if (attached_handler_name || m->hw_handler_name) {
 		INIT_DELAYED_WORK(&p->activate_path, activate_path_work);
 		r = setup_scsi_dh(p->path.dev->bdev, m, &attached_handler_name, &ti->error);
+		kfree(attached_handler_name);
 		if (r) {
 			dm_put_device(ti, p->path.dev);
 			goto bad;
@@ -896,7 +897,6 @@ static struct pgpath *parse_path(struct
 
 	return p;
  bad:
-	kfree(attached_handler_name);
 	free_pgpath(p);
 	return ERR_PTR(r);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-table.c linux-libre-5.1.21-gnu/drivers/md/dm-table.c
--- linux-libre-5.1-gnu/drivers/md/dm-table.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-table.c	2019-07-28 02:28:39.000000000 -0400
@@ -561,7 +561,7 @@ static char **realloc_argv(unsigned *siz
 		gfp = GFP_NOIO;
 	}
 	argv = kmalloc_array(new_size, sizeof(*argv), gfp);
-	if (argv) {
+	if (argv && old_argv) {
 		memcpy(argv, old_argv, *size * sizeof(*argv));
 		*size = new_size;
 	}
@@ -880,13 +880,17 @@ void dm_table_set_type(struct dm_table *
 }
 EXPORT_SYMBOL_GPL(dm_table_set_type);
 
+/* validate the dax capability of the target device span */
 static int device_supports_dax(struct dm_target *ti, struct dm_dev *dev,
-			       sector_t start, sector_t len, void *data)
+				       sector_t start, sector_t len, void *data)
 {
-	return bdev_dax_supported(dev->bdev, PAGE_SIZE);
+	int blocksize = *(int *) data;
+
+	return generic_fsdax_supported(dev->dax_dev, dev->bdev, blocksize,
+			start, len);
 }
 
-static bool dm_table_supports_dax(struct dm_table *t)
+bool dm_table_supports_dax(struct dm_table *t, int blocksize)
 {
 	struct dm_target *ti;
 	unsigned i;
@@ -899,7 +903,8 @@ static bool dm_table_supports_dax(struct
 			return false;
 
 		if (!ti->type->iterate_devices ||
-		    !ti->type->iterate_devices(ti, device_supports_dax, NULL))
+		    !ti->type->iterate_devices(ti, device_supports_dax,
+			    &blocksize))
 			return false;
 	}
 
@@ -979,7 +984,7 @@ static int dm_table_determine_type(struc
 verify_bio_based:
 		/* We must use this table as bio-based */
 		t->type = DM_TYPE_BIO_BASED;
-		if (dm_table_supports_dax(t) ||
+		if (dm_table_supports_dax(t, PAGE_SIZE) ||
 		    (list_empty(devices) && live_md_type == DM_TYPE_DAX_BIO_BASED)) {
 			t->type = DM_TYPE_DAX_BIO_BASED;
 		} else {
@@ -1905,7 +1910,7 @@ void dm_table_set_restrictions(struct dm
 	}
 	blk_queue_write_cache(q, wc, fua);
 
-	if (dm_table_supports_dax(t))
+	if (dm_table_supports_dax(t, PAGE_SIZE))
 		blk_queue_flag_set(QUEUE_FLAG_DAX, q);
 	else
 		blk_queue_flag_clear(QUEUE_FLAG_DAX, q);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-verity-target.c linux-libre-5.1.21-gnu/drivers/md/dm-verity-target.c
--- linux-libre-5.1-gnu/drivers/md/dm-verity-target.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-verity-target.c	2019-07-28 02:28:39.000000000 -0400
@@ -236,8 +236,8 @@ static int verity_handle_err(struct dm_v
 		BUG();
 	}
 
-	DMERR("%s: %s block %llu is corrupted", v->data_dev->name, type_str,
-		block);
+	DMERR_LIMIT("%s: %s block %llu is corrupted", v->data_dev->name,
+		    type_str, block);
 
 	if (v->corrupted_errs == DM_VERITY_MAX_CORRUPTED_ERRS)
 		DMERR("%s: reached maximum errors", v->data_dev->name);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-zoned.h linux-libre-5.1.21-gnu/drivers/md/dm-zoned.h
--- linux-libre-5.1-gnu/drivers/md/dm-zoned.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-zoned.h	2019-07-28 02:28:39.000000000 -0400
@@ -115,7 +115,6 @@ enum {
 	DMZ_BUF,
 
 	/* Zone internal state */
-	DMZ_ACTIVE,
 	DMZ_RECLAIM,
 	DMZ_SEQ_WRITE_ERR,
 };
@@ -128,7 +127,6 @@ enum {
 #define dmz_is_empty(z)		((z)->wp_block == 0)
 #define dmz_is_offline(z)	test_bit(DMZ_OFFLINE, &(z)->flags)
 #define dmz_is_readonly(z)	test_bit(DMZ_READ_ONLY, &(z)->flags)
-#define dmz_is_active(z)	test_bit(DMZ_ACTIVE, &(z)->flags)
 #define dmz_in_reclaim(z)	test_bit(DMZ_RECLAIM, &(z)->flags)
 #define dmz_seq_write_err(z)	test_bit(DMZ_SEQ_WRITE_ERR, &(z)->flags)
 
@@ -188,8 +186,30 @@ void dmz_unmap_zone(struct dmz_metadata
 unsigned int dmz_nr_rnd_zones(struct dmz_metadata *zmd);
 unsigned int dmz_nr_unmap_rnd_zones(struct dmz_metadata *zmd);
 
-void dmz_activate_zone(struct dm_zone *zone);
-void dmz_deactivate_zone(struct dm_zone *zone);
+/*
+ * Activate a zone (increment its reference count).
+ */
+static inline void dmz_activate_zone(struct dm_zone *zone)
+{
+	atomic_inc(&zone->refcount);
+}
+
+/*
+ * Deactivate a zone. This decrement the zone reference counter
+ * indicating that all BIOs to the zone have completed when the count is 0.
+ */
+static inline void dmz_deactivate_zone(struct dm_zone *zone)
+{
+	atomic_dec(&zone->refcount);
+}
+
+/*
+ * Test if a zone is active, that is, has a refcount > 0.
+ */
+static inline bool dmz_is_active(struct dm_zone *zone)
+{
+	return atomic_read(&zone->refcount);
+}
 
 int dmz_lock_zone_reclaim(struct dm_zone *zone);
 void dmz_unlock_zone_reclaim(struct dm_zone *zone);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/dm-zoned-metadata.c linux-libre-5.1.21-gnu/drivers/md/dm-zoned-metadata.c
--- linux-libre-5.1-gnu/drivers/md/dm-zoned-metadata.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/dm-zoned-metadata.c	2019-07-28 02:28:39.000000000 -0400
@@ -1169,6 +1169,9 @@ static int dmz_init_zones(struct dmz_met
 			goto out;
 		}
 
+		if (!nr_blkz)
+			break;
+
 		/* Process report */
 		for (i = 0; i < nr_blkz; i++) {
 			ret = dmz_init_zone(zmd, zone, &blkz[i]);
@@ -1204,6 +1207,8 @@ static int dmz_update_zone(struct dmz_me
 	/* Get zone information from disk */
 	ret = blkdev_report_zones(zmd->dev->bdev, dmz_start_sect(zmd, zone),
 				  &blkz, &nr_blkz, GFP_NOIO);
+	if (!nr_blkz)
+		ret = -EIO;
 	if (ret) {
 		dmz_dev_err(zmd->dev, "Get zone %u report failed",
 			    dmz_id(zmd, zone));
@@ -1589,30 +1594,6 @@ struct dm_zone *dmz_get_zone_for_reclaim
 }
 
 /*
- * Activate a zone (increment its reference count).
- */
-void dmz_activate_zone(struct dm_zone *zone)
-{
-	set_bit(DMZ_ACTIVE, &zone->flags);
-	atomic_inc(&zone->refcount);
-}
-
-/*
- * Deactivate a zone. This decrement the zone reference counter
- * and clears the active state of the zone once the count reaches 0,
- * indicating that all BIOs to the zone have completed. Returns
- * true if the zone was deactivated.
- */
-void dmz_deactivate_zone(struct dm_zone *zone)
-{
-	if (atomic_dec_and_test(&zone->refcount)) {
-		WARN_ON(!test_bit(DMZ_ACTIVE, &zone->flags));
-		clear_bit_unlock(DMZ_ACTIVE, &zone->flags);
-		smp_mb__after_atomic();
-	}
-}
-
-/*
  * Get the zone mapping a chunk, if the chunk is mapped already.
  * If no mapping exist and the operation is WRITE, a zone is
  * allocated and used to map the chunk.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/md.c linux-libre-5.1.21-gnu/drivers/md/md.c
--- linux-libre-5.1-gnu/drivers/md/md.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/md.c	2019-07-28 02:28:39.000000000 -0400
@@ -132,24 +132,6 @@ static inline int speed_max(struct mddev
 		mddev->sync_speed_max : sysctl_speed_limit_max;
 }
 
-static void * flush_info_alloc(gfp_t gfp_flags, void *data)
-{
-        return kzalloc(sizeof(struct flush_info), gfp_flags);
-}
-static void flush_info_free(void *flush_info, void *data)
-{
-        kfree(flush_info);
-}
-
-static void * flush_bio_alloc(gfp_t gfp_flags, void *data)
-{
-	return kzalloc(sizeof(struct flush_bio), gfp_flags);
-}
-static void flush_bio_free(void *flush_bio, void *data)
-{
-	kfree(flush_bio);
-}
-
 static struct ctl_table_header *raid_table_header;
 
 static struct ctl_table raid_table[] = {
@@ -423,54 +405,31 @@ static int md_congested(void *data, int
 /*
  * Generic flush handling for md
  */
-static void submit_flushes(struct work_struct *ws)
-{
-	struct flush_info *fi = container_of(ws, struct flush_info, flush_work);
-	struct mddev *mddev = fi->mddev;
-	struct bio *bio = fi->bio;
-
-	bio->bi_opf &= ~REQ_PREFLUSH;
-	md_handle_request(mddev, bio);
-
-	mempool_free(fi, mddev->flush_pool);
-}
 
-static void md_end_flush(struct bio *fbio)
+static void md_end_flush(struct bio *bio)
 {
-	struct flush_bio *fb = fbio->bi_private;
-	struct md_rdev *rdev = fb->rdev;
-	struct flush_info *fi = fb->fi;
-	struct bio *bio = fi->bio;
-	struct mddev *mddev = fi->mddev;
+	struct md_rdev *rdev = bio->bi_private;
+	struct mddev *mddev = rdev->mddev;
 
 	rdev_dec_pending(rdev, mddev);
 
-	if (atomic_dec_and_test(&fi->flush_pending)) {
-		if (bio->bi_iter.bi_size == 0) {
-			/* an empty barrier - all done */
-			bio_endio(bio);
-			mempool_free(fi, mddev->flush_pool);
-		} else {
-			INIT_WORK(&fi->flush_work, submit_flushes);
-			queue_work(md_wq, &fi->flush_work);
-		}
+	if (atomic_dec_and_test(&mddev->flush_pending)) {
+		/* The pre-request flush has finished */
+		queue_work(md_wq, &mddev->flush_work);
 	}
-
-	mempool_free(fb, mddev->flush_bio_pool);
-	bio_put(fbio);
+	bio_put(bio);
 }
 
-void md_flush_request(struct mddev *mddev, struct bio *bio)
+static void md_submit_flush_data(struct work_struct *ws);
+
+static void submit_flushes(struct work_struct *ws)
 {
+	struct mddev *mddev = container_of(ws, struct mddev, flush_work);
 	struct md_rdev *rdev;
-	struct flush_info *fi;
-
-	fi = mempool_alloc(mddev->flush_pool, GFP_NOIO);
-
-	fi->bio = bio;
-	fi->mddev = mddev;
-	atomic_set(&fi->flush_pending, 1);
 
+	mddev->start_flush = ktime_get_boottime();
+	INIT_WORK(&mddev->flush_work, md_submit_flush_data);
+	atomic_set(&mddev->flush_pending, 1);
 	rcu_read_lock();
 	rdev_for_each_rcu(rdev, mddev)
 		if (rdev->raid_disk >= 0 &&
@@ -480,37 +439,74 @@ void md_flush_request(struct mddev *mdde
 			 * we reclaim rcu_read_lock
 			 */
 			struct bio *bi;
-			struct flush_bio *fb;
 			atomic_inc(&rdev->nr_pending);
 			atomic_inc(&rdev->nr_pending);
 			rcu_read_unlock();
-
-			fb = mempool_alloc(mddev->flush_bio_pool, GFP_NOIO);
-			fb->fi = fi;
-			fb->rdev = rdev;
-
 			bi = bio_alloc_mddev(GFP_NOIO, 0, mddev);
-			bio_set_dev(bi, rdev->bdev);
 			bi->bi_end_io = md_end_flush;
-			bi->bi_private = fb;
+			bi->bi_private = rdev;
+			bio_set_dev(bi, rdev->bdev);
 			bi->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
-
-			atomic_inc(&fi->flush_pending);
+			atomic_inc(&mddev->flush_pending);
 			submit_bio(bi);
-
 			rcu_read_lock();
 			rdev_dec_pending(rdev, mddev);
 		}
 	rcu_read_unlock();
+	if (atomic_dec_and_test(&mddev->flush_pending))
+		queue_work(md_wq, &mddev->flush_work);
+}
 
-	if (atomic_dec_and_test(&fi->flush_pending)) {
-		if (bio->bi_iter.bi_size == 0) {
+static void md_submit_flush_data(struct work_struct *ws)
+{
+	struct mddev *mddev = container_of(ws, struct mddev, flush_work);
+	struct bio *bio = mddev->flush_bio;
+
+	/*
+	 * must reset flush_bio before calling into md_handle_request to avoid a
+	 * deadlock, because other bios passed md_handle_request suspend check
+	 * could wait for this and below md_handle_request could wait for those
+	 * bios because of suspend check
+	 */
+	mddev->last_flush = mddev->start_flush;
+	mddev->flush_bio = NULL;
+	wake_up(&mddev->sb_wait);
+
+	if (bio->bi_iter.bi_size == 0) {
+		/* an empty barrier - all done */
+		bio_endio(bio);
+	} else {
+		bio->bi_opf &= ~REQ_PREFLUSH;
+		md_handle_request(mddev, bio);
+	}
+}
+
+void md_flush_request(struct mddev *mddev, struct bio *bio)
+{
+	ktime_t start = ktime_get_boottime();
+	spin_lock_irq(&mddev->lock);
+	wait_event_lock_irq(mddev->sb_wait,
+			    !mddev->flush_bio ||
+			    ktime_after(mddev->last_flush, start),
+			    mddev->lock);
+	if (!ktime_after(mddev->last_flush, start)) {
+		WARN_ON(mddev->flush_bio);
+		mddev->flush_bio = bio;
+		bio = NULL;
+	}
+	spin_unlock_irq(&mddev->lock);
+
+	if (!bio) {
+		INIT_WORK(&mddev->flush_work, submit_flushes);
+		queue_work(md_wq, &mddev->flush_work);
+	} else {
+		/* flush was performed for some other bio while we waited. */
+		if (bio->bi_iter.bi_size == 0)
 			/* an empty barrier - all done */
 			bio_endio(bio);
-			mempool_free(fi, mddev->flush_pool);
-		} else {
-			INIT_WORK(&fi->flush_work, submit_flushes);
-			queue_work(md_wq, &fi->flush_work);
+		else {
+			bio->bi_opf &= ~REQ_PREFLUSH;
+			mddev->pers->make_request(mddev, bio);
 		}
 	}
 }
@@ -560,6 +556,7 @@ void mddev_init(struct mddev *mddev)
 	atomic_set(&mddev->openers, 0);
 	atomic_set(&mddev->active_io, 0);
 	spin_lock_init(&mddev->lock);
+	atomic_set(&mddev->flush_pending, 0);
 	init_waitqueue_head(&mddev->sb_wait);
 	init_waitqueue_head(&mddev->recovery_wait);
 	mddev->reshape_position = MaxSector;
@@ -2855,8 +2852,10 @@ state_store(struct md_rdev *rdev, const
 			err = 0;
 		}
 	} else if (cmd_match(buf, "re-add")) {
-		if (test_bit(Faulty, &rdev->flags) && (rdev->raid_disk == -1) &&
-			rdev->saved_raid_disk >= 0) {
+		if (!rdev->mddev->pers)
+			err = -EINVAL;
+		else if (test_bit(Faulty, &rdev->flags) && (rdev->raid_disk == -1) &&
+				rdev->saved_raid_disk >= 0) {
 			/* clear_bit is performed _after_ all the devices
 			 * have their local Faulty bit cleared. If any writes
 			 * happen in the meantime in the local node, they
@@ -5511,22 +5510,6 @@ int md_run(struct mddev *mddev)
 		if (err)
 			return err;
 	}
-	if (mddev->flush_pool == NULL) {
-		mddev->flush_pool = mempool_create(NR_FLUSH_INFOS, flush_info_alloc,
-						flush_info_free, mddev);
-		if (!mddev->flush_pool) {
-			err = -ENOMEM;
-			goto abort;
-		}
-	}
-	if (mddev->flush_bio_pool == NULL) {
-		mddev->flush_bio_pool = mempool_create(NR_FLUSH_BIOS, flush_bio_alloc,
-						flush_bio_free, mddev);
-		if (!mddev->flush_bio_pool) {
-			err = -ENOMEM;
-			goto abort;
-		}
-	}
 
 	spin_lock(&pers_lock);
 	pers = find_pers(mddev->level, mddev->clevel);
@@ -5686,11 +5669,8 @@ int md_run(struct mddev *mddev)
 	return 0;
 
 abort:
-	mempool_destroy(mddev->flush_bio_pool);
-	mddev->flush_bio_pool = NULL;
-	mempool_destroy(mddev->flush_pool);
-	mddev->flush_pool = NULL;
-
+	bioset_exit(&mddev->bio_set);
+	bioset_exit(&mddev->sync_set);
 	return err;
 }
 EXPORT_SYMBOL_GPL(md_run);
@@ -5894,14 +5874,6 @@ static void __md_stop(struct mddev *mdde
 		mddev->to_remove = &md_redundancy_group;
 	module_put(pers->owner);
 	clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
-	if (mddev->flush_bio_pool) {
-		mempool_destroy(mddev->flush_bio_pool);
-		mddev->flush_bio_pool = NULL;
-	}
-	if (mddev->flush_pool) {
-		mempool_destroy(mddev->flush_pool);
-		mddev->flush_pool = NULL;
-	}
 }
 
 void md_stop(struct mddev *mddev)
@@ -7645,9 +7617,9 @@ static void status_unused(struct seq_fil
 static int status_resync(struct seq_file *seq, struct mddev *mddev)
 {
 	sector_t max_sectors, resync, res;
-	unsigned long dt, db;
-	sector_t rt;
-	int scale;
+	unsigned long dt, db = 0;
+	sector_t rt, curr_mark_cnt, resync_mark_cnt;
+	int scale, recovery_active;
 	unsigned int per_milli;
 
 	if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) ||
@@ -7736,22 +7708,30 @@ static int status_resync(struct seq_file
 	 * db: blocks written from mark until now
 	 * rt: remaining time
 	 *
-	 * rt is a sector_t, so could be 32bit or 64bit.
-	 * So we divide before multiply in case it is 32bit and close
-	 * to the limit.
-	 * We scale the divisor (db) by 32 to avoid losing precision
-	 * near the end of resync when the number of remaining sectors
-	 * is close to 'db'.
-	 * We then divide rt by 32 after multiplying by db to compensate.
-	 * The '+1' avoids division by zero if db is very small.
+	 * rt is a sector_t, which is always 64bit now. We are keeping
+	 * the original algorithm, but it is not really necessary.
+	 *
+	 * Original algorithm:
+	 *   So we divide before multiply in case it is 32bit and close
+	 *   to the limit.
+	 *   We scale the divisor (db) by 32 to avoid losing precision
+	 *   near the end of resync when the number of remaining sectors
+	 *   is close to 'db'.
+	 *   We then divide rt by 32 after multiplying by db to compensate.
+	 *   The '+1' avoids division by zero if db is very small.
 	 */
 	dt = ((jiffies - mddev->resync_mark) / HZ);
 	if (!dt) dt++;
-	db = (mddev->curr_mark_cnt - atomic_read(&mddev->recovery_active))
-		- mddev->resync_mark_cnt;
+
+	curr_mark_cnt = mddev->curr_mark_cnt;
+	recovery_active = atomic_read(&mddev->recovery_active);
+	resync_mark_cnt = mddev->resync_mark_cnt;
+
+	if (curr_mark_cnt >= (recovery_active + resync_mark_cnt))
+		db = curr_mark_cnt - (recovery_active + resync_mark_cnt);
 
 	rt = max_sectors - resync;    /* number of remaining sectors */
-	sector_div(rt, db/32+1);
+	rt = div64_u64(rt, db/32+1);
 	rt *= dt;
 	rt >>= 5;
 
@@ -9257,7 +9237,7 @@ static void check_sb_changes(struct mdde
 		 * reshape is happening in the remote node, we need to
 		 * update reshape_position and call start_reshape.
 		 */
-		mddev->reshape_position = sb->reshape_position;
+		mddev->reshape_position = le64_to_cpu(sb->reshape_position);
 		if (mddev->pers->update_reshape_pos)
 			mddev->pers->update_reshape_pos(mddev);
 		if (mddev->pers->start_reshape)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/md.h linux-libre-5.1.21-gnu/drivers/md/md.h
--- linux-libre-5.1-gnu/drivers/md/md.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/md.h	2019-07-28 02:28:39.000000000 -0400
@@ -252,19 +252,6 @@ enum mddev_sb_flags {
 	MD_SB_NEED_REWRITE,	/* metadata write needs to be repeated */
 };
 
-#define NR_FLUSH_INFOS 8
-#define NR_FLUSH_BIOS 64
-struct flush_info {
-	struct bio			*bio;
-	struct mddev			*mddev;
-	struct work_struct		flush_work;
-	atomic_t			flush_pending;
-};
-struct flush_bio {
-	struct flush_info *fi;
-	struct md_rdev *rdev;
-};
-
 struct mddev {
 	void				*private;
 	struct md_personality		*pers;
@@ -470,8 +457,16 @@ struct mddev {
 						   * metadata and bitmap writes
 						   */
 
-	mempool_t			*flush_pool;
-	mempool_t			*flush_bio_pool;
+	/* Generic flush handling.
+	 * The last to finish preflush schedules a worker to submit
+	 * the rest of the request (without the REQ_PREFLUSH flag).
+	 */
+	struct bio *flush_bio;
+	atomic_t flush_pending;
+	ktime_t start_flush, last_flush; /* last_flush is when the last completed
+					  * flush was started.
+					  */
+	struct work_struct flush_work;
 	struct work_struct event_work;	/* used by dm to report failure event */
 	void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);
 	struct md_cluster_info		*cluster_info;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/md/raid5.c linux-libre-5.1.21-gnu/drivers/md/raid5.c
--- linux-libre-5.1-gnu/drivers/md/raid5.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/md/raid5.c	2019-07-28 02:28:39.000000000 -0400
@@ -4187,7 +4187,7 @@ static void handle_parity_checks6(struct
 		/* now write out any block on a failed drive,
 		 * or P or Q if they were recomputed
 		 */
-		BUG_ON(s->uptodate < disks - 1); /* We don't need Q to recover */
+		dev = NULL;
 		if (s->failed == 2) {
 			dev = &sh->dev[s->failed_num[1]];
 			s->locked++;
@@ -4212,6 +4212,14 @@ static void handle_parity_checks6(struct
 			set_bit(R5_LOCKED, &dev->flags);
 			set_bit(R5_Wantwrite, &dev->flags);
 		}
+		if (WARN_ONCE(dev && !test_bit(R5_UPTODATE, &dev->flags),
+			      "%s: disk%td not up to date\n",
+			      mdname(conf->mddev),
+			      dev - (struct r5dev *) &sh->dev)) {
+			clear_bit(R5_LOCKED, &dev->flags);
+			clear_bit(R5_Wantwrite, &dev->flags);
+			s->locked--;
+		}
 		clear_bit(STRIPE_DEGRADED, &sh->state);
 
 		set_bit(STRIPE_INSYNC, &sh->state);
@@ -7666,7 +7674,7 @@ abort:
 static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 {
 	struct r5conf *conf = mddev->private;
-	int err = -EEXIST;
+	int ret, err = -EEXIST;
 	int disk;
 	struct disk_info *p;
 	int first = 0;
@@ -7681,7 +7689,14 @@ static int raid5_add_disk(struct mddev *
 		 * The array is in readonly mode if journal is missing, so no
 		 * write requests running. We should be safe
 		 */
-		log_init(conf, rdev, false);
+		ret = log_init(conf, rdev, false);
+		if (ret)
+			return ret;
+
+		ret = r5l_start(conf->log);
+		if (ret)
+			return ret;
+
 		return 0;
 	}
 	if (mddev->recovery_disabled == conf->recovery_disabled)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/common/videobuf2/videobuf2-core.c linux-libre-5.1.21-gnu/drivers/media/common/videobuf2/videobuf2-core.c
--- linux-libre-5.1-gnu/drivers/media/common/videobuf2/videobuf2-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/common/videobuf2/videobuf2-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -207,6 +207,10 @@ static int __vb2_buf_mem_alloc(struct vb
 	for (plane = 0; plane < vb->num_planes; ++plane) {
 		unsigned long size = PAGE_ALIGN(vb->planes[plane].length);
 
+		/* Did it wrap around? */
+		if (size < vb->planes[plane].length)
+			goto free;
+
 		mem_priv = call_ptr_memop(vb, alloc,
 				q->alloc_devs[plane] ? : q->dev,
 				q->dma_attrs, size, q->dma_dir, q->gfp_flags);
@@ -672,6 +676,11 @@ int vb2_core_reqbufs(struct vb2_queue *q
 		return -EBUSY;
 	}
 
+	if (q->waiting_in_dqbuf && *count) {
+		dprintk(1, "another dup()ped fd is waiting for a buffer\n");
+		return -EBUSY;
+	}
+
 	if (*count == 0 || q->num_buffers != 0 ||
 	    (q->memory != VB2_MEMORY_UNKNOWN && q->memory != memory)) {
 		/*
@@ -807,6 +816,10 @@ int vb2_core_create_bufs(struct vb2_queu
 	}
 
 	if (!q->num_buffers) {
+		if (q->waiting_in_dqbuf && *count) {
+			dprintk(1, "another dup()ped fd is waiting for a buffer\n");
+			return -EBUSY;
+		}
 		memset(q->alloc_devs, 0, sizeof(q->alloc_devs));
 		q->memory = memory;
 		q->waiting_for_buffers = !q->is_output;
@@ -1659,6 +1672,11 @@ static int __vb2_wait_for_done_vb(struct
 	for (;;) {
 		int ret;
 
+		if (q->waiting_in_dqbuf) {
+			dprintk(1, "another dup()ped fd is waiting for a buffer\n");
+			return -EBUSY;
+		}
+
 		if (!q->streaming) {
 			dprintk(1, "streaming off, will not wait for buffers\n");
 			return -EINVAL;
@@ -1686,6 +1704,7 @@ static int __vb2_wait_for_done_vb(struct
 			return -EAGAIN;
 		}
 
+		q->waiting_in_dqbuf = 1;
 		/*
 		 * We are streaming and blocking, wait for another buffer to
 		 * become ready or for streamoff. Driver's lock is released to
@@ -1706,6 +1725,7 @@ static int __vb2_wait_for_done_vb(struct
 		 * the locks or return an error if one occurred.
 		 */
 		call_void_qop(q, wait_finish, q);
+		q->waiting_in_dqbuf = 0;
 		if (ret) {
 			dprintk(1, "sleep was interrupted\n");
 			return ret;
@@ -2585,6 +2605,12 @@ static size_t __vb2_perform_fileio(struc
 	if (!data)
 		return -EINVAL;
 
+	if (q->waiting_in_dqbuf) {
+		dprintk(3, "another dup()ped fd is %s\n",
+			read ? "reading" : "writing");
+		return -EBUSY;
+	}
+
 	/*
 	 * Initialize emulator on first call.
 	 */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/common/videobuf2/videobuf2-dma-sg.c linux-libre-5.1.21-gnu/drivers/media/common/videobuf2/videobuf2-dma-sg.c
--- linux-libre-5.1-gnu/drivers/media/common/videobuf2/videobuf2-dma-sg.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/common/videobuf2/videobuf2-dma-sg.c	2019-07-28 02:28:39.000000000 -0400
@@ -59,7 +59,7 @@ static int vb2_dma_sg_alloc_compacted(st
 		gfp_t gfp_flags)
 {
 	unsigned int last_page = 0;
-	int size = buf->size;
+	unsigned long size = buf->size;
 
 	while (size > 0) {
 		struct page *pages;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/dvb-core/dvb_frontend.c linux-libre-5.1.21-gnu/drivers/media/dvb-core/dvb_frontend.c
--- linux-libre-5.1-gnu/drivers/media/dvb-core/dvb_frontend.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/dvb-core/dvb_frontend.c	2019-07-28 02:28:39.000000000 -0400
@@ -917,7 +917,7 @@ static void dvb_frontend_get_frequency_l
 			 "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n",
 			 fe->dvb->num, fe->id);
 
-	dprintk("frequency interval: tuner: %u...%u, frontend: %u...%u",
+	dev_dbg(fe->dvb->device, "frequency interval: tuner: %u...%u, frontend: %u...%u",
 		tuner_min, tuner_max, frontend_min, frontend_max);
 
 	/* If the standard is for satellite, convert frequencies to kHz */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/dvb-frontends/m88ds3103.c linux-libre-5.1.21-gnu/drivers/media/dvb-frontends/m88ds3103.c
--- linux-libre-5.1-gnu/drivers/media/dvb-frontends/m88ds3103.c	2019-05-05 21:27:11.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/dvb-frontends/m88ds3103.c	2019-07-28 13:28:53.000000000 -0400
@@ -309,6 +309,9 @@ static int m88ds3103_set_frontend(struct
 	u16 u16tmp;
 	u32 tuner_frequency_khz, target_mclk;
 	s32 s32tmp;
+	static const struct reg_sequence reset_buf[] = {
+		{0x07, 0x80}, {0x07, 0x00}
+	};
 
 	dev_dbg(&client->dev,
 		"delivery_system=%d modulation=%d frequency=%u symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n",
@@ -321,11 +324,7 @@ static int m88ds3103_set_frontend(struct
 	}
 
 	/* reset */
-	ret = regmap_write(dev->regmap, 0x07, 0x80);
-	if (ret)
-		goto err;
-
-	ret = regmap_write(dev->regmap, 0x07, 0x00);
+	ret = regmap_multi_reg_write(dev->regmap, reset_buf, 2);
 	if (ret)
 		goto err;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/dvb-frontends/si2165.c linux-libre-5.1.21-gnu/drivers/media/dvb-frontends/si2165.c
--- linux-libre-5.1-gnu/drivers/media/dvb-frontends/si2165.c	2019-05-05 21:27:25.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/dvb-frontends/si2165.c	2019-07-28 13:29:09.000000000 -0400
@@ -275,18 +275,20 @@ static u32 si2165_get_fe_clk(struct si21
 
 static int si2165_wait_init_done(struct si2165_state *state)
 {
-	int ret = -EINVAL;
+	int ret;
 	u8 val = 0;
 	int i;
 
 	for (i = 0; i < 3; ++i) {
-		si2165_readreg8(state, REG_INIT_DONE, &val);
+		ret = si2165_readreg8(state, REG_INIT_DONE, &val);
+		if (ret < 0)
+			return ret;
 		if (val == 0x01)
 			return 0;
 		usleep_range(1000, 50000);
 	}
 	dev_err(&state->client->dev, "init_done was not set\n");
-	return ret;
+	return -EINVAL;
 }
 
 static int si2165_upload_firmware_block(struct si2165_state *state,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/dvb-frontends/stv0297.c linux-libre-5.1.21-gnu/drivers/media/dvb-frontends/stv0297.c
--- linux-libre-5.1-gnu/drivers/media/dvb-frontends/stv0297.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/dvb-frontends/stv0297.c	2019-07-28 02:28:39.000000000 -0400
@@ -694,7 +694,7 @@ static const struct dvb_frontend_ops stv
 	.delsys = { SYS_DVBC_ANNEX_A },
 	.info = {
 		 .name = "ST STV0297 DVB-C",
-		 .frequency_min_hz = 470 * MHz,
+		 .frequency_min_hz = 47 * MHz,
 		 .frequency_max_hz = 862 * MHz,
 		 .frequency_stepsize_hz = 62500,
 		 .symbol_rate_min = 870000,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/dvb-frontends/tua6100.c linux-libre-5.1.21-gnu/drivers/media/dvb-frontends/tua6100.c
--- linux-libre-5.1-gnu/drivers/media/dvb-frontends/tua6100.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/dvb-frontends/tua6100.c	2019-07-28 02:28:39.000000000 -0400
@@ -75,8 +75,8 @@ static int tua6100_set_params(struct dvb
 	struct i2c_msg msg1 = { .addr = priv->i2c_address, .flags = 0, .buf = reg1, .len = 4 };
 	struct i2c_msg msg2 = { .addr = priv->i2c_address, .flags = 0, .buf = reg2, .len = 3 };
 
-#define _R 4
-#define _P 32
+#define _R_VAL 4
+#define _P_VAL 32
 #define _ri 4000000
 
 	// setup register 0
@@ -91,14 +91,14 @@ static int tua6100_set_params(struct dvb
 	else
 		reg1[1] = 0x0c;
 
-	if (_P == 64)
+	if (_P_VAL == 64)
 		reg1[1] |= 0x40;
 	if (c->frequency >= 1525000)
 		reg1[1] |= 0x80;
 
 	// register 2
-	reg2[1] = (_R >> 8) & 0x03;
-	reg2[2] = _R;
+	reg2[1] = (_R_VAL >> 8) & 0x03;
+	reg2[2] = _R_VAL;
 	if (c->frequency < 1455000)
 		reg2[1] |= 0x1c;
 	else if (c->frequency < 1630000)
@@ -110,18 +110,18 @@ static int tua6100_set_params(struct dvb
 	 * The N divisor ratio (note: c->frequency is in kHz, but we
 	 * need it in Hz)
 	 */
-	prediv = (c->frequency * _R) / (_ri / 1000);
-	div = prediv / _P;
+	prediv = (c->frequency * _R_VAL) / (_ri / 1000);
+	div = prediv / _P_VAL;
 	reg1[1] |= (div >> 9) & 0x03;
 	reg1[2] = div >> 1;
 	reg1[3] = (div << 7);
-	priv->frequency = ((div * _P) * (_ri / 1000)) / _R;
+	priv->frequency = ((div * _P_VAL) * (_ri / 1000)) / _R_VAL;
 
 	// Finally, calculate and store the value for A
-	reg1[3] |= (prediv - (div*_P)) & 0x7f;
+	reg1[3] |= (prediv - (div*_P_VAL)) & 0x7f;
 
-#undef _R
-#undef _P
+#undef _R_VAL
+#undef _P_VAL
 #undef _ri
 
 	if (fe->ops.i2c_gate_ctrl)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/i2c/adv7511.c linux-libre-5.1.21-gnu/drivers/media/i2c/adv7511.c
--- linux-libre-5.1-gnu/drivers/media/i2c/adv7511.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/i2c/adv7511.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,1992 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Analog Devices ADV7511 HDMI Transmitter Device Driver
- *
- * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
- */
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/delay.h>
-#include <linux/videodev2.h>
-#include <linux/gpio.h>
-#include <linux/workqueue.h>
-#include <linux/hdmi.h>
-#include <linux/v4l2-dv-timings.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-dv-timings.h>
-#include <media/i2c/adv7511.h>
-#include <media/cec.h>
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "debug level (0-2)");
-
-MODULE_DESCRIPTION("Analog Devices ADV7511 HDMI Transmitter Device Driver");
-MODULE_AUTHOR("Hans Verkuil");
-MODULE_LICENSE("GPL v2");
-
-#define MASK_ADV7511_EDID_RDY_INT   0x04
-#define MASK_ADV7511_MSEN_INT       0x40
-#define MASK_ADV7511_HPD_INT        0x80
-
-#define MASK_ADV7511_HPD_DETECT     0x40
-#define MASK_ADV7511_MSEN_DETECT    0x20
-#define MASK_ADV7511_EDID_RDY       0x10
-
-#define EDID_MAX_RETRIES (8)
-#define EDID_DELAY 250
-#define EDID_MAX_SEGM 8
-
-#define ADV7511_MAX_WIDTH 1920
-#define ADV7511_MAX_HEIGHT 1200
-#define ADV7511_MIN_PIXELCLOCK 20000000
-#define ADV7511_MAX_PIXELCLOCK 225000000
-
-#define ADV7511_MAX_ADDRS (3)
-
-/*
-**********************************************************************
-*
-*  Arrays with configuration parameters for the ADV7511
-*
-**********************************************************************
-*/
-
-struct i2c_reg_value {
-	unsigned char reg;
-	unsigned char value;
-};
-
-struct adv7511_state_edid {
-	/* total number of blocks */
-	u32 blocks;
-	/* Number of segments read */
-	u32 segments;
-	u8 data[EDID_MAX_SEGM * 256];
-	/* Number of EDID read retries left */
-	unsigned read_retries;
-	bool complete;
-};
-
-struct adv7511_state {
-	struct adv7511_platform_data pdata;
-	struct v4l2_subdev sd;
-	struct media_pad pad;
-	struct v4l2_ctrl_handler hdl;
-	int chip_revision;
-	u8 i2c_edid_addr;
-	u8 i2c_pktmem_addr;
-	u8 i2c_cec_addr;
-
-	struct i2c_client *i2c_cec;
-	struct cec_adapter *cec_adap;
-	u8   cec_addr[ADV7511_MAX_ADDRS];
-	u8   cec_valid_addrs;
-	bool cec_enabled_adap;
-
-	/* Is the adv7511 powered on? */
-	bool power_on;
-	/* Did we receive hotplug and rx-sense signals? */
-	bool have_monitor;
-	bool enabled_irq;
-	/* timings from s_dv_timings */
-	struct v4l2_dv_timings dv_timings;
-	u32 fmt_code;
-	u32 colorspace;
-	u32 ycbcr_enc;
-	u32 quantization;
-	u32 xfer_func;
-	u32 content_type;
-	/* controls */
-	struct v4l2_ctrl *hdmi_mode_ctrl;
-	struct v4l2_ctrl *hotplug_ctrl;
-	struct v4l2_ctrl *rx_sense_ctrl;
-	struct v4l2_ctrl *have_edid0_ctrl;
-	struct v4l2_ctrl *rgb_quantization_range_ctrl;
-	struct v4l2_ctrl *content_type_ctrl;
-	struct i2c_client *i2c_edid;
-	struct i2c_client *i2c_pktmem;
-	struct adv7511_state_edid edid;
-	/* Running counter of the number of detected EDIDs (for debugging) */
-	unsigned edid_detect_counter;
-	struct workqueue_struct *work_queue;
-	struct delayed_work edid_handler; /* work entry */
-};
-
-static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd);
-static bool adv7511_check_edid_status(struct v4l2_subdev *sd);
-static void adv7511_setup(struct v4l2_subdev *sd);
-static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq);
-static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq);
-
-
-static const struct v4l2_dv_timings_cap adv7511_timings_cap = {
-	.type = V4L2_DV_BT_656_1120,
-	/* keep this initialization for compatibility with GCC < 4.4.6 */
-	.reserved = { 0 },
-	V4L2_INIT_BT_TIMINGS(640, ADV7511_MAX_WIDTH, 350, ADV7511_MAX_HEIGHT,
-		ADV7511_MIN_PIXELCLOCK, ADV7511_MAX_PIXELCLOCK,
-		V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
-			V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
-		V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
-			V4L2_DV_BT_CAP_CUSTOM)
-};
-
-static inline struct adv7511_state *get_adv7511_state(struct v4l2_subdev *sd)
-{
-	return container_of(sd, struct adv7511_state, sd);
-}
-
-static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
-{
-	return &container_of(ctrl->handler, struct adv7511_state, hdl)->sd;
-}
-
-/* ------------------------ I2C ----------------------------------------------- */
-
-static s32 adv_smbus_read_byte_data_check(struct i2c_client *client,
-					  u8 command, bool check)
-{
-	union i2c_smbus_data data;
-
-	if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-			    I2C_SMBUS_READ, command,
-			    I2C_SMBUS_BYTE_DATA, &data))
-		return data.byte;
-	if (check)
-		v4l_err(client, "error reading %02x, %02x\n",
-			client->addr, command);
-	return -1;
-}
-
-static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command)
-{
-	int i;
-	for (i = 0; i < 3; i++) {
-		int ret = adv_smbus_read_byte_data_check(client, command, true);
-		if (ret >= 0) {
-			if (i)
-				v4l_err(client, "read ok after %d retries\n", i);
-			return ret;
-		}
-	}
-	v4l_err(client, "read failed\n");
-	return -1;
-}
-
-static int adv7511_rd(struct v4l2_subdev *sd, u8 reg)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
-
-	return adv_smbus_read_byte_data(client, reg);
-}
-
-static int adv7511_wr(struct v4l2_subdev *sd, u8 reg, u8 val)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
-	int ret;
-	int i;
-
-	for (i = 0; i < 3; i++) {
-		ret = i2c_smbus_write_byte_data(client, reg, val);
-		if (ret == 0)
-			return 0;
-	}
-	v4l2_err(sd, "%s: i2c write error\n", __func__);
-	return ret;
-}
-
-/* To set specific bits in the register, a clear-mask is given (to be AND-ed),
-   and then the value-mask (to be OR-ed). */
-static inline void adv7511_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask)
-{
-	adv7511_wr(sd, reg, (adv7511_rd(sd, reg) & clr_mask) | val_mask);
-}
-
-static int adv_smbus_read_i2c_block_data(struct i2c_client *client,
-					 u8 command, unsigned length, u8 *values)
-{
-	union i2c_smbus_data data;
-	int ret;
-
-	if (length > I2C_SMBUS_BLOCK_MAX)
-		length = I2C_SMBUS_BLOCK_MAX;
-	data.block[0] = length;
-
-	ret = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-			     I2C_SMBUS_READ, command,
-			     I2C_SMBUS_I2C_BLOCK_DATA, &data);
-	memcpy(values, data.block + 1, length);
-	return ret;
-}
-
-static void adv7511_edid_rd(struct v4l2_subdev *sd, uint16_t len, uint8_t *buf)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	int i;
-	int err = 0;
-
-	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
-
-	for (i = 0; !err && i < len; i += I2C_SMBUS_BLOCK_MAX)
-		err = adv_smbus_read_i2c_block_data(state->i2c_edid, i,
-						    I2C_SMBUS_BLOCK_MAX, buf + i);
-	if (err)
-		v4l2_err(sd, "%s: i2c read error\n", __func__);
-}
-
-static inline int adv7511_cec_read(struct v4l2_subdev *sd, u8 reg)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	return i2c_smbus_read_byte_data(state->i2c_cec, reg);
-}
-
-static int adv7511_cec_write(struct v4l2_subdev *sd, u8 reg, u8 val)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	int ret;
-	int i;
-
-	for (i = 0; i < 3; i++) {
-		ret = i2c_smbus_write_byte_data(state->i2c_cec, reg, val);
-		if (ret == 0)
-			return 0;
-	}
-	v4l2_err(sd, "%s: I2C Write Problem\n", __func__);
-	return ret;
-}
-
-static inline int adv7511_cec_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask,
-				   u8 val)
-{
-	return adv7511_cec_write(sd, reg, (adv7511_cec_read(sd, reg) & mask) | val);
-}
-
-static int adv7511_pktmem_rd(struct v4l2_subdev *sd, u8 reg)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	return adv_smbus_read_byte_data(state->i2c_pktmem, reg);
-}
-
-static int adv7511_pktmem_wr(struct v4l2_subdev *sd, u8 reg, u8 val)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	int ret;
-	int i;
-
-	for (i = 0; i < 3; i++) {
-		ret = i2c_smbus_write_byte_data(state->i2c_pktmem, reg, val);
-		if (ret == 0)
-			return 0;
-	}
-	v4l2_err(sd, "%s: i2c write error\n", __func__);
-	return ret;
-}
-
-/* To set specific bits in the register, a clear-mask is given (to be AND-ed),
-   and then the value-mask (to be OR-ed). */
-static inline void adv7511_pktmem_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask)
-{
-	adv7511_pktmem_wr(sd, reg, (adv7511_pktmem_rd(sd, reg) & clr_mask) | val_mask);
-}
-
-static inline bool adv7511_have_hotplug(struct v4l2_subdev *sd)
-{
-	return adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT;
-}
-
-static inline bool adv7511_have_rx_sense(struct v4l2_subdev *sd)
-{
-	return adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT;
-}
-
-static void adv7511_csc_conversion_mode(struct v4l2_subdev *sd, u8 mode)
-{
-	adv7511_wr_and_or(sd, 0x18, 0x9f, (mode & 0x3)<<5);
-}
-
-static void adv7511_csc_coeff(struct v4l2_subdev *sd,
-			      u16 A1, u16 A2, u16 A3, u16 A4,
-			      u16 B1, u16 B2, u16 B3, u16 B4,
-			      u16 C1, u16 C2, u16 C3, u16 C4)
-{
-	/* A */
-	adv7511_wr_and_or(sd, 0x18, 0xe0, A1>>8);
-	adv7511_wr(sd, 0x19, A1);
-	adv7511_wr_and_or(sd, 0x1A, 0xe0, A2>>8);
-	adv7511_wr(sd, 0x1B, A2);
-	adv7511_wr_and_or(sd, 0x1c, 0xe0, A3>>8);
-	adv7511_wr(sd, 0x1d, A3);
-	adv7511_wr_and_or(sd, 0x1e, 0xe0, A4>>8);
-	adv7511_wr(sd, 0x1f, A4);
-
-	/* B */
-	adv7511_wr_and_or(sd, 0x20, 0xe0, B1>>8);
-	adv7511_wr(sd, 0x21, B1);
-	adv7511_wr_and_or(sd, 0x22, 0xe0, B2>>8);
-	adv7511_wr(sd, 0x23, B2);
-	adv7511_wr_and_or(sd, 0x24, 0xe0, B3>>8);
-	adv7511_wr(sd, 0x25, B3);
-	adv7511_wr_and_or(sd, 0x26, 0xe0, B4>>8);
-	adv7511_wr(sd, 0x27, B4);
-
-	/* C */
-	adv7511_wr_and_or(sd, 0x28, 0xe0, C1>>8);
-	adv7511_wr(sd, 0x29, C1);
-	adv7511_wr_and_or(sd, 0x2A, 0xe0, C2>>8);
-	adv7511_wr(sd, 0x2B, C2);
-	adv7511_wr_and_or(sd, 0x2C, 0xe0, C3>>8);
-	adv7511_wr(sd, 0x2D, C3);
-	adv7511_wr_and_or(sd, 0x2E, 0xe0, C4>>8);
-	adv7511_wr(sd, 0x2F, C4);
-}
-
-static void adv7511_csc_rgb_full2limit(struct v4l2_subdev *sd, bool enable)
-{
-	if (enable) {
-		u8 csc_mode = 0;
-		adv7511_csc_conversion_mode(sd, csc_mode);
-		adv7511_csc_coeff(sd,
-				  4096-564, 0, 0, 256,
-				  0, 4096-564, 0, 256,
-				  0, 0, 4096-564, 256);
-		/* enable CSC */
-		adv7511_wr_and_or(sd, 0x18, 0x7f, 0x80);
-		/* AVI infoframe: Limited range RGB (16-235) */
-		adv7511_wr_and_or(sd, 0x57, 0xf3, 0x04);
-	} else {
-		/* disable CSC */
-		adv7511_wr_and_or(sd, 0x18, 0x7f, 0x0);
-		/* AVI infoframe: Full range RGB (0-255) */
-		adv7511_wr_and_or(sd, 0x57, 0xf3, 0x08);
-	}
-}
-
-static void adv7511_set_rgb_quantization_mode(struct v4l2_subdev *sd, struct v4l2_ctrl *ctrl)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	/* Only makes sense for RGB formats */
-	if (state->fmt_code != MEDIA_BUS_FMT_RGB888_1X24) {
-		/* so just keep quantization */
-		adv7511_csc_rgb_full2limit(sd, false);
-		return;
-	}
-
-	switch (ctrl->val) {
-	case V4L2_DV_RGB_RANGE_AUTO:
-		/* automatic */
-		if (state->dv_timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) {
-			/* CE format, RGB limited range (16-235) */
-			adv7511_csc_rgb_full2limit(sd, true);
-		} else {
-			/* not CE format, RGB full range (0-255) */
-			adv7511_csc_rgb_full2limit(sd, false);
-		}
-		break;
-	case V4L2_DV_RGB_RANGE_LIMITED:
-		/* RGB limited range (16-235) */
-		adv7511_csc_rgb_full2limit(sd, true);
-		break;
-	case V4L2_DV_RGB_RANGE_FULL:
-		/* RGB full range (0-255) */
-		adv7511_csc_rgb_full2limit(sd, false);
-		break;
-	}
-}
-
-/* ------------------------------ CTRL OPS ------------------------------ */
-
-static int adv7511_s_ctrl(struct v4l2_ctrl *ctrl)
-{
-	struct v4l2_subdev *sd = to_sd(ctrl);
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	v4l2_dbg(1, debug, sd, "%s: ctrl id: %d, ctrl->val %d\n", __func__, ctrl->id, ctrl->val);
-
-	if (state->hdmi_mode_ctrl == ctrl) {
-		/* Set HDMI or DVI-D */
-		adv7511_wr_and_or(sd, 0xaf, 0xfd, ctrl->val == V4L2_DV_TX_MODE_HDMI ? 0x02 : 0x00);
-		return 0;
-	}
-	if (state->rgb_quantization_range_ctrl == ctrl) {
-		adv7511_set_rgb_quantization_mode(sd, ctrl);
-		return 0;
-	}
-	if (state->content_type_ctrl == ctrl) {
-		u8 itc, cn;
-
-		state->content_type = ctrl->val;
-		itc = state->content_type != V4L2_DV_IT_CONTENT_TYPE_NO_ITC;
-		cn = itc ? state->content_type : V4L2_DV_IT_CONTENT_TYPE_GRAPHICS;
-		adv7511_wr_and_or(sd, 0x57, 0x7f, itc << 7);
-		adv7511_wr_and_or(sd, 0x59, 0xcf, cn << 4);
-		return 0;
-	}
-
-	return -EINVAL;
-}
-
-static const struct v4l2_ctrl_ops adv7511_ctrl_ops = {
-	.s_ctrl = adv7511_s_ctrl,
-};
-
-/* ---------------------------- CORE OPS ------------------------------------------- */
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-static void adv7511_inv_register(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	v4l2_info(sd, "0x000-0x0ff: Main Map\n");
-	if (state->i2c_cec)
-		v4l2_info(sd, "0x100-0x1ff: CEC Map\n");
-}
-
-static int adv7511_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	reg->size = 1;
-	switch (reg->reg >> 8) {
-	case 0:
-		reg->val = adv7511_rd(sd, reg->reg & 0xff);
-		break;
-	case 1:
-		if (state->i2c_cec) {
-			reg->val = adv7511_cec_read(sd, reg->reg & 0xff);
-			break;
-		}
-		/* fall through */
-	default:
-		v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
-		adv7511_inv_register(sd);
-		break;
-	}
-	return 0;
-}
-
-static int adv7511_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	switch (reg->reg >> 8) {
-	case 0:
-		adv7511_wr(sd, reg->reg & 0xff, reg->val & 0xff);
-		break;
-	case 1:
-		if (state->i2c_cec) {
-			adv7511_cec_write(sd, reg->reg & 0xff, reg->val & 0xff);
-			break;
-		}
-		/* fall through */
-	default:
-		v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
-		adv7511_inv_register(sd);
-		break;
-	}
-	return 0;
-}
-#endif
-
-struct adv7511_cfg_read_infoframe {
-	const char *desc;
-	u8 present_reg;
-	u8 present_mask;
-	u8 header[3];
-	u16 payload_addr;
-};
-
-static u8 hdmi_infoframe_checksum(u8 *ptr, size_t size)
-{
-	u8 csum = 0;
-	size_t i;
-
-	/* compute checksum */
-	for (i = 0; i < size; i++)
-		csum += ptr[i];
-
-	return 256 - csum;
-}
-
-static void log_infoframe(struct v4l2_subdev *sd, const struct adv7511_cfg_read_infoframe *cri)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
-	struct device *dev = &client->dev;
-	union hdmi_infoframe frame;
-	u8 buffer[32];
-	u8 len;
-	int i;
-
-	if (!(adv7511_rd(sd, cri->present_reg) & cri->present_mask)) {
-		v4l2_info(sd, "%s infoframe not transmitted\n", cri->desc);
-		return;
-	}
-
-	memcpy(buffer, cri->header, sizeof(cri->header));
-
-	len = buffer[2];
-
-	if (len + 4 > sizeof(buffer)) {
-		v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, cri->desc, len);
-		return;
-	}
-
-	if (cri->payload_addr >= 0x100) {
-		for (i = 0; i < len; i++)
-			buffer[i + 4] = adv7511_pktmem_rd(sd, cri->payload_addr + i - 0x100);
-	} else {
-		for (i = 0; i < len; i++)
-			buffer[i + 4] = adv7511_rd(sd, cri->payload_addr + i);
-	}
-	buffer[3] = 0;
-	buffer[3] = hdmi_infoframe_checksum(buffer, len + 4);
-
-	if (hdmi_infoframe_unpack(&frame, buffer, sizeof(buffer)) < 0) {
-		v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, cri->desc);
-		return;
-	}
-
-	hdmi_infoframe_log(KERN_INFO, dev, &frame);
-}
-
-static void adv7511_log_infoframes(struct v4l2_subdev *sd)
-{
-	static const struct adv7511_cfg_read_infoframe cri[] = {
-		{ "AVI", 0x44, 0x10, { 0x82, 2, 13 }, 0x55 },
-		{ "Audio", 0x44, 0x08, { 0x84, 1, 10 }, 0x73 },
-		{ "SDP", 0x40, 0x40, { 0x83, 1, 25 }, 0x103 },
-	};
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(cri); i++)
-		log_infoframe(sd, &cri[i]);
-}
-
-static int adv7511_log_status(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	struct adv7511_state_edid *edid = &state->edid;
-	int i;
-
-	static const char * const states[] = {
-		"in reset",
-		"reading EDID",
-		"idle",
-		"initializing HDCP",
-		"HDCP enabled",
-		"initializing HDCP repeater",
-		"6", "7", "8", "9", "A", "B", "C", "D", "E", "F"
-	};
-	static const char * const errors[] = {
-		"no error",
-		"bad receiver BKSV",
-		"Ri mismatch",
-		"Pj mismatch",
-		"i2c error",
-		"timed out",
-		"max repeater cascade exceeded",
-		"hash check failed",
-		"too many devices",
-		"9", "A", "B", "C", "D", "E", "F"
-	};
-
-	v4l2_info(sd, "power %s\n", state->power_on ? "on" : "off");
-	v4l2_info(sd, "%s hotplug, %s Rx Sense, %s EDID (%d block(s))\n",
-		  (adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT) ? "detected" : "no",
-		  (adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT) ? "detected" : "no",
-		  edid->segments ? "found" : "no",
-		  edid->blocks);
-	v4l2_info(sd, "%s output %s\n",
-		  (adv7511_rd(sd, 0xaf) & 0x02) ?
-		  "HDMI" : "DVI-D",
-		  (adv7511_rd(sd, 0xa1) & 0x3c) ?
-		  "disabled" : "enabled");
-	v4l2_info(sd, "state: %s, error: %s, detect count: %u, msk/irq: %02x/%02x\n",
-			  states[adv7511_rd(sd, 0xc8) & 0xf],
-			  errors[adv7511_rd(sd, 0xc8) >> 4], state->edid_detect_counter,
-			  adv7511_rd(sd, 0x94), adv7511_rd(sd, 0x96));
-	v4l2_info(sd, "RGB quantization: %s range\n", adv7511_rd(sd, 0x18) & 0x80 ? "limited" : "full");
-	if (adv7511_rd(sd, 0xaf) & 0x02) {
-		/* HDMI only */
-		u8 manual_cts = adv7511_rd(sd, 0x0a) & 0x80;
-		u32 N = (adv7511_rd(sd, 0x01) & 0xf) << 16 |
-			adv7511_rd(sd, 0x02) << 8 |
-			adv7511_rd(sd, 0x03);
-		u8 vic_detect = adv7511_rd(sd, 0x3e) >> 2;
-		u8 vic_sent = adv7511_rd(sd, 0x3d) & 0x3f;
-		u32 CTS;
-
-		if (manual_cts)
-			CTS = (adv7511_rd(sd, 0x07) & 0xf) << 16 |
-			      adv7511_rd(sd, 0x08) << 8 |
-			      adv7511_rd(sd, 0x09);
-		else
-			CTS = (adv7511_rd(sd, 0x04) & 0xf) << 16 |
-			      adv7511_rd(sd, 0x05) << 8 |
-			      adv7511_rd(sd, 0x06);
-		v4l2_info(sd, "CTS %s mode: N %d, CTS %d\n",
-			  manual_cts ? "manual" : "automatic", N, CTS);
-		v4l2_info(sd, "VIC: detected %d, sent %d\n",
-			  vic_detect, vic_sent);
-		adv7511_log_infoframes(sd);
-	}
-	if (state->dv_timings.type == V4L2_DV_BT_656_1120)
-		v4l2_print_dv_timings(sd->name, "timings: ",
-				&state->dv_timings, false);
-	else
-		v4l2_info(sd, "no timings set\n");
-	v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr);
-
-	if (state->i2c_cec == NULL)
-		return 0;
-
-	v4l2_info(sd, "i2c cec addr: 0x%x\n", state->i2c_cec_addr);
-
-	v4l2_info(sd, "CEC: %s\n", state->cec_enabled_adap ?
-			"enabled" : "disabled");
-	if (state->cec_enabled_adap) {
-		for (i = 0; i < ADV7511_MAX_ADDRS; i++) {
-			bool is_valid = state->cec_valid_addrs & (1 << i);
-
-			if (is_valid)
-				v4l2_info(sd, "CEC Logical Address: 0x%x\n",
-					  state->cec_addr[i]);
-		}
-	}
-	v4l2_info(sd, "i2c pktmem addr: 0x%x\n", state->i2c_pktmem_addr);
-	return 0;
-}
-
-/* Power up/down adv7511 */
-static int adv7511_s_power(struct v4l2_subdev *sd, int on)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	const int retries = 20;
-	int i;
-
-	v4l2_dbg(1, debug, sd, "%s: power %s\n", __func__, on ? "on" : "off");
-
-	state->power_on = on;
-
-	if (!on) {
-		/* Power down */
-		adv7511_wr_and_or(sd, 0x41, 0xbf, 0x40);
-		return true;
-	}
-
-	/* Power up */
-	/* The adv7511 does not always come up immediately.
-	   Retry multiple times. */
-	for (i = 0; i < retries; i++) {
-		adv7511_wr_and_or(sd, 0x41, 0xbf, 0x0);
-		if ((adv7511_rd(sd, 0x41) & 0x40) == 0)
-			break;
-		adv7511_wr_and_or(sd, 0x41, 0xbf, 0x40);
-		msleep(10);
-	}
-	if (i == retries) {
-		v4l2_dbg(1, debug, sd, "%s: failed to powerup the adv7511!\n", __func__);
-		adv7511_s_power(sd, 0);
-		return false;
-	}
-	if (i > 1)
-		v4l2_dbg(1, debug, sd, "%s: needed %d retries to powerup the adv7511\n", __func__, i);
-
-	/* Reserved registers that must be set */
-	adv7511_wr(sd, 0x98, 0x03);
-	adv7511_wr_and_or(sd, 0x9a, 0xfe, 0x70);
-	adv7511_wr(sd, 0x9c, 0x30);
-	adv7511_wr_and_or(sd, 0x9d, 0xfc, 0x01);
-	adv7511_wr(sd, 0xa2, 0xa4);
-	adv7511_wr(sd, 0xa3, 0xa4);
-	adv7511_wr(sd, 0xe0, 0xd0);
-	adv7511_wr(sd, 0xf9, 0x00);
-
-	adv7511_wr(sd, 0x43, state->i2c_edid_addr);
-	adv7511_wr(sd, 0x45, state->i2c_pktmem_addr);
-
-	/* Set number of attempts to read the EDID */
-	adv7511_wr(sd, 0xc9, 0xf);
-	return true;
-}
-
-#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
-static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable)
-{
-	struct adv7511_state *state = cec_get_drvdata(adap);
-	struct v4l2_subdev *sd = &state->sd;
-
-	if (state->i2c_cec == NULL)
-		return -EIO;
-
-	if (!state->cec_enabled_adap && enable) {
-		/* power up cec section */
-		adv7511_cec_write_and_or(sd, 0x4e, 0xfc, 0x01);
-		/* legacy mode and clear all rx buffers */
-		adv7511_cec_write(sd, 0x4a, 0x00);
-		adv7511_cec_write(sd, 0x4a, 0x07);
-		adv7511_cec_write_and_or(sd, 0x11, 0xfe, 0); /* initially disable tx */
-		/* enabled irqs: */
-		/* tx: ready */
-		/* tx: arbitration lost */
-		/* tx: retry timeout */
-		/* rx: ready 1 */
-		if (state->enabled_irq)
-			adv7511_wr_and_or(sd, 0x95, 0xc0, 0x39);
-	} else if (state->cec_enabled_adap && !enable) {
-		if (state->enabled_irq)
-			adv7511_wr_and_or(sd, 0x95, 0xc0, 0x00);
-		/* disable address mask 1-3 */
-		adv7511_cec_write_and_or(sd, 0x4b, 0x8f, 0x00);
-		/* power down cec section */
-		adv7511_cec_write_and_or(sd, 0x4e, 0xfc, 0x00);
-		state->cec_valid_addrs = 0;
-	}
-	state->cec_enabled_adap = enable;
-	return 0;
-}
-
-static int adv7511_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
-{
-	struct adv7511_state *state = cec_get_drvdata(adap);
-	struct v4l2_subdev *sd = &state->sd;
-	unsigned int i, free_idx = ADV7511_MAX_ADDRS;
-
-	if (!state->cec_enabled_adap)
-		return addr == CEC_LOG_ADDR_INVALID ? 0 : -EIO;
-
-	if (addr == CEC_LOG_ADDR_INVALID) {
-		adv7511_cec_write_and_or(sd, 0x4b, 0x8f, 0);
-		state->cec_valid_addrs = 0;
-		return 0;
-	}
-
-	for (i = 0; i < ADV7511_MAX_ADDRS; i++) {
-		bool is_valid = state->cec_valid_addrs & (1 << i);
-
-		if (free_idx == ADV7511_MAX_ADDRS && !is_valid)
-			free_idx = i;
-		if (is_valid && state->cec_addr[i] == addr)
-			return 0;
-	}
-	if (i == ADV7511_MAX_ADDRS) {
-		i = free_idx;
-		if (i == ADV7511_MAX_ADDRS)
-			return -ENXIO;
-	}
-	state->cec_addr[i] = addr;
-	state->cec_valid_addrs |= 1 << i;
-
-	switch (i) {
-	case 0:
-		/* enable address mask 0 */
-		adv7511_cec_write_and_or(sd, 0x4b, 0xef, 0x10);
-		/* set address for mask 0 */
-		adv7511_cec_write_and_or(sd, 0x4c, 0xf0, addr);
-		break;
-	case 1:
-		/* enable address mask 1 */
-		adv7511_cec_write_and_or(sd, 0x4b, 0xdf, 0x20);
-		/* set address for mask 1 */
-		adv7511_cec_write_and_or(sd, 0x4c, 0x0f, addr << 4);
-		break;
-	case 2:
-		/* enable address mask 2 */
-		adv7511_cec_write_and_or(sd, 0x4b, 0xbf, 0x40);
-		/* set address for mask 1 */
-		adv7511_cec_write_and_or(sd, 0x4d, 0xf0, addr);
-		break;
-	}
-	return 0;
-}
-
-static int adv7511_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
-				     u32 signal_free_time, struct cec_msg *msg)
-{
-	struct adv7511_state *state = cec_get_drvdata(adap);
-	struct v4l2_subdev *sd = &state->sd;
-	u8 len = msg->len;
-	unsigned int i;
-
-	v4l2_dbg(1, debug, sd, "%s: len %d\n", __func__, len);
-
-	if (len > 16) {
-		v4l2_err(sd, "%s: len exceeded 16 (%d)\n", __func__, len);
-		return -EINVAL;
-	}
-
-	/*
-	 * The number of retries is the number of attempts - 1, but retry
-	 * at least once. It's not clear if a value of 0 is allowed, so
-	 * let's do at least one retry.
-	 */
-	adv7511_cec_write_and_or(sd, 0x12, ~0x70, max(1, attempts - 1) << 4);
-
-	/* clear cec tx irq status */
-	adv7511_wr(sd, 0x97, 0x38);
-
-	/* write data */
-	for (i = 0; i < len; i++)
-		adv7511_cec_write(sd, i, msg->msg[i]);
-
-	/* set length (data + header) */
-	adv7511_cec_write(sd, 0x10, len);
-	/* start transmit, enable tx */
-	adv7511_cec_write(sd, 0x11, 0x01);
-	return 0;
-}
-
-static void adv_cec_tx_raw_status(struct v4l2_subdev *sd, u8 tx_raw_status)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	if ((adv7511_cec_read(sd, 0x11) & 0x01) == 0) {
-		v4l2_dbg(1, debug, sd, "%s: tx raw: tx disabled\n", __func__);
-		return;
-	}
-
-	if (tx_raw_status & 0x10) {
-		v4l2_dbg(1, debug, sd,
-			 "%s: tx raw: arbitration lost\n", __func__);
-		cec_transmit_done(state->cec_adap, CEC_TX_STATUS_ARB_LOST,
-				  1, 0, 0, 0);
-		return;
-	}
-	if (tx_raw_status & 0x08) {
-		u8 status;
-		u8 nack_cnt;
-		u8 low_drive_cnt;
-
-		v4l2_dbg(1, debug, sd, "%s: tx raw: retry failed\n", __func__);
-		/*
-		 * We set this status bit since this hardware performs
-		 * retransmissions.
-		 */
-		status = CEC_TX_STATUS_MAX_RETRIES;
-		nack_cnt = adv7511_cec_read(sd, 0x14) & 0xf;
-		if (nack_cnt)
-			status |= CEC_TX_STATUS_NACK;
-		low_drive_cnt = adv7511_cec_read(sd, 0x14) >> 4;
-		if (low_drive_cnt)
-			status |= CEC_TX_STATUS_LOW_DRIVE;
-		cec_transmit_done(state->cec_adap, status,
-				  0, nack_cnt, low_drive_cnt, 0);
-		return;
-	}
-	if (tx_raw_status & 0x20) {
-		v4l2_dbg(1, debug, sd, "%s: tx raw: ready ok\n", __func__);
-		cec_transmit_done(state->cec_adap, CEC_TX_STATUS_OK, 0, 0, 0, 0);
-		return;
-	}
-}
-
-static const struct cec_adap_ops adv7511_cec_adap_ops = {
-	.adap_enable = adv7511_cec_adap_enable,
-	.adap_log_addr = adv7511_cec_adap_log_addr,
-	.adap_transmit = adv7511_cec_adap_transmit,
-};
-#endif
-
-/* Enable interrupts */
-static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	u8 irqs = MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT;
-	u8 irqs_rd;
-	int retries = 100;
-
-	v4l2_dbg(2, debug, sd, "%s: %s\n", __func__, enable ? "enable" : "disable");
-
-	if (state->enabled_irq == enable)
-		return;
-	state->enabled_irq = enable;
-
-	/* The datasheet says that the EDID ready interrupt should be
-	   disabled if there is no hotplug. */
-	if (!enable)
-		irqs = 0;
-	else if (adv7511_have_hotplug(sd))
-		irqs |= MASK_ADV7511_EDID_RDY_INT;
-
-	/*
-	 * This i2c write can fail (approx. 1 in 1000 writes). But it
-	 * is essential that this register is correct, so retry it
-	 * multiple times.
-	 *
-	 * Note that the i2c write does not report an error, but the readback
-	 * clearly shows the wrong value.
-	 */
-	do {
-		adv7511_wr(sd, 0x94, irqs);
-		irqs_rd = adv7511_rd(sd, 0x94);
-	} while (retries-- && irqs_rd != irqs);
-
-	if (irqs_rd != irqs)
-		v4l2_err(sd, "Could not set interrupts: hw failure?\n");
-
-	adv7511_wr_and_or(sd, 0x95, 0xc0,
-			  (state->cec_enabled_adap && enable) ? 0x39 : 0x00);
-}
-
-/* Interrupt handler */
-static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
-{
-	u8 irq_status;
-	u8 cec_irq;
-
-	/* disable interrupts to prevent a race condition */
-	adv7511_set_isr(sd, false);
-	irq_status = adv7511_rd(sd, 0x96);
-	cec_irq = adv7511_rd(sd, 0x97);
-	/* clear detected interrupts */
-	adv7511_wr(sd, 0x96, irq_status);
-	adv7511_wr(sd, 0x97, cec_irq);
-
-	v4l2_dbg(1, debug, sd, "%s: irq 0x%x, cec-irq 0x%x\n", __func__,
-		 irq_status, cec_irq);
-
-	if (irq_status & (MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT))
-		adv7511_check_monitor_present_status(sd);
-	if (irq_status & MASK_ADV7511_EDID_RDY_INT)
-		adv7511_check_edid_status(sd);
-
-#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
-	if (cec_irq & 0x38)
-		adv_cec_tx_raw_status(sd, cec_irq);
-
-	if (cec_irq & 1) {
-		struct adv7511_state *state = get_adv7511_state(sd);
-		struct cec_msg msg;
-
-		msg.len = adv7511_cec_read(sd, 0x25) & 0x1f;
-
-		v4l2_dbg(1, debug, sd, "%s: cec msg len %d\n", __func__,
-			 msg.len);
-
-		if (msg.len > 16)
-			msg.len = 16;
-
-		if (msg.len) {
-			u8 i;
-
-			for (i = 0; i < msg.len; i++)
-				msg.msg[i] = adv7511_cec_read(sd, i + 0x15);
-
-			adv7511_cec_write(sd, 0x4a, 0); /* toggle to re-enable rx 1 */
-			adv7511_cec_write(sd, 0x4a, 1);
-			cec_received_msg(state->cec_adap, &msg);
-		}
-	}
-#endif
-
-	/* enable interrupts */
-	adv7511_set_isr(sd, true);
-
-	if (handled)
-		*handled = true;
-	return 0;
-}
-
-static const struct v4l2_subdev_core_ops adv7511_core_ops = {
-	.log_status = adv7511_log_status,
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-	.g_register = adv7511_g_register,
-	.s_register = adv7511_s_register,
-#endif
-	.s_power = adv7511_s_power,
-	.interrupt_service_routine = adv7511_isr,
-};
-
-/* ------------------------------ VIDEO OPS ------------------------------ */
-
-/* Enable/disable adv7511 output */
-static int adv7511_s_stream(struct v4l2_subdev *sd, int enable)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	v4l2_dbg(1, debug, sd, "%s: %sable\n", __func__, (enable ? "en" : "dis"));
-	adv7511_wr_and_or(sd, 0xa1, ~0x3c, (enable ? 0 : 0x3c));
-	if (enable) {
-		adv7511_check_monitor_present_status(sd);
-	} else {
-		adv7511_s_power(sd, 0);
-		state->have_monitor = false;
-	}
-	return 0;
-}
-
-static int adv7511_s_dv_timings(struct v4l2_subdev *sd,
-			       struct v4l2_dv_timings *timings)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	struct v4l2_bt_timings *bt = &timings->bt;
-	u32 fps;
-
-	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
-
-	/* quick sanity check */
-	if (!v4l2_valid_dv_timings(timings, &adv7511_timings_cap, NULL, NULL))
-		return -EINVAL;
-
-	/* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
-	   if the format is one of the CEA or DMT timings. */
-	v4l2_find_dv_timings_cap(timings, &adv7511_timings_cap, 0, NULL, NULL);
-
-	/* save timings */
-	state->dv_timings = *timings;
-
-	/* set h/vsync polarities */
-	adv7511_wr_and_or(sd, 0x17, 0x9f,
-		((bt->polarities & V4L2_DV_VSYNC_POS_POL) ? 0 : 0x40) |
-		((bt->polarities & V4L2_DV_HSYNC_POS_POL) ? 0 : 0x20));
-
-	fps = (u32)bt->pixelclock / (V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt));
-	switch (fps) {
-	case 24:
-		adv7511_wr_and_or(sd, 0xfb, 0xf9, 1 << 1);
-		break;
-	case 25:
-		adv7511_wr_and_or(sd, 0xfb, 0xf9, 2 << 1);
-		break;
-	case 30:
-		adv7511_wr_and_or(sd, 0xfb, 0xf9, 3 << 1);
-		break;
-	default:
-		adv7511_wr_and_or(sd, 0xfb, 0xf9, 0);
-		break;
-	}
-
-	/* update quantization range based on new dv_timings */
-	adv7511_set_rgb_quantization_mode(sd, state->rgb_quantization_range_ctrl);
-
-	return 0;
-}
-
-static int adv7511_g_dv_timings(struct v4l2_subdev *sd,
-				struct v4l2_dv_timings *timings)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
-
-	if (!timings)
-		return -EINVAL;
-
-	*timings = state->dv_timings;
-
-	return 0;
-}
-
-static int adv7511_enum_dv_timings(struct v4l2_subdev *sd,
-				   struct v4l2_enum_dv_timings *timings)
-{
-	if (timings->pad != 0)
-		return -EINVAL;
-
-	return v4l2_enum_dv_timings_cap(timings, &adv7511_timings_cap, NULL, NULL);
-}
-
-static int adv7511_dv_timings_cap(struct v4l2_subdev *sd,
-				  struct v4l2_dv_timings_cap *cap)
-{
-	if (cap->pad != 0)
-		return -EINVAL;
-
-	*cap = adv7511_timings_cap;
-	return 0;
-}
-
-static const struct v4l2_subdev_video_ops adv7511_video_ops = {
-	.s_stream = adv7511_s_stream,
-	.s_dv_timings = adv7511_s_dv_timings,
-	.g_dv_timings = adv7511_g_dv_timings,
-};
-
-/* ------------------------------ AUDIO OPS ------------------------------ */
-static int adv7511_s_audio_stream(struct v4l2_subdev *sd, int enable)
-{
-	v4l2_dbg(1, debug, sd, "%s: %sable\n", __func__, (enable ? "en" : "dis"));
-
-	if (enable)
-		adv7511_wr_and_or(sd, 0x4b, 0x3f, 0x80);
-	else
-		adv7511_wr_and_or(sd, 0x4b, 0x3f, 0x40);
-
-	return 0;
-}
-
-static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
-{
-	u32 N;
-
-	switch (freq) {
-	case 32000:  N = 4096;  break;
-	case 44100:  N = 6272;  break;
-	case 48000:  N = 6144;  break;
-	case 88200:  N = 12544; break;
-	case 96000:  N = 12288; break;
-	case 176400: N = 25088; break;
-	case 192000: N = 24576; break;
-	default:
-		return -EINVAL;
-	}
-
-	/* Set N (used with CTS to regenerate the audio clock) */
-	adv7511_wr(sd, 0x01, (N >> 16) & 0xf);
-	adv7511_wr(sd, 0x02, (N >> 8) & 0xff);
-	adv7511_wr(sd, 0x03, N & 0xff);
-
-	return 0;
-}
-
-static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq)
-{
-	u32 i2s_sf;
-
-	switch (freq) {
-	case 32000:  i2s_sf = 0x30; break;
-	case 44100:  i2s_sf = 0x00; break;
-	case 48000:  i2s_sf = 0x20; break;
-	case 88200:  i2s_sf = 0x80; break;
-	case 96000:  i2s_sf = 0xa0; break;
-	case 176400: i2s_sf = 0xc0; break;
-	case 192000: i2s_sf = 0xe0; break;
-	default:
-		return -EINVAL;
-	}
-
-	/* Set sampling frequency for I2S audio to 48 kHz */
-	adv7511_wr_and_or(sd, 0x15, 0xf, i2s_sf);
-
-	return 0;
-}
-
-static int adv7511_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config)
-{
-	/* Only 2 channels in use for application */
-	adv7511_wr_and_or(sd, 0x73, 0xf8, 0x1);
-	/* Speaker mapping */
-	adv7511_wr(sd, 0x76, 0x00);
-
-	/* 16 bit audio word length */
-	adv7511_wr_and_or(sd, 0x14, 0xf0, 0x02);
-
-	return 0;
-}
-
-static const struct v4l2_subdev_audio_ops adv7511_audio_ops = {
-	.s_stream = adv7511_s_audio_stream,
-	.s_clock_freq = adv7511_s_clock_freq,
-	.s_i2s_clock_freq = adv7511_s_i2s_clock_freq,
-	.s_routing = adv7511_s_routing,
-};
-
-/* ---------------------------- PAD OPS ------------------------------------- */
-
-static int adv7511_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	memset(edid->reserved, 0, sizeof(edid->reserved));
-
-	if (edid->pad != 0)
-		return -EINVAL;
-
-	if (edid->start_block == 0 && edid->blocks == 0) {
-		edid->blocks = state->edid.segments * 2;
-		return 0;
-	}
-
-	if (state->edid.segments == 0)
-		return -ENODATA;
-
-	if (edid->start_block >= state->edid.segments * 2)
-		return -EINVAL;
-
-	if (edid->start_block + edid->blocks > state->edid.segments * 2)
-		edid->blocks = state->edid.segments * 2 - edid->start_block;
-
-	memcpy(edid->edid, &state->edid.data[edid->start_block * 128],
-			128 * edid->blocks);
-
-	return 0;
-}
-
-static int adv7511_enum_mbus_code(struct v4l2_subdev *sd,
-				  struct v4l2_subdev_pad_config *cfg,
-				  struct v4l2_subdev_mbus_code_enum *code)
-{
-	if (code->pad != 0)
-		return -EINVAL;
-
-	switch (code->index) {
-	case 0:
-		code->code = MEDIA_BUS_FMT_RGB888_1X24;
-		break;
-	case 1:
-		code->code = MEDIA_BUS_FMT_YUYV8_1X16;
-		break;
-	case 2:
-		code->code = MEDIA_BUS_FMT_UYVY8_1X16;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static void adv7511_fill_format(struct adv7511_state *state,
-				struct v4l2_mbus_framefmt *format)
-{
-	format->width = state->dv_timings.bt.width;
-	format->height = state->dv_timings.bt.height;
-	format->field = V4L2_FIELD_NONE;
-}
-
-static int adv7511_get_fmt(struct v4l2_subdev *sd,
-			   struct v4l2_subdev_pad_config *cfg,
-			   struct v4l2_subdev_format *format)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	if (format->pad != 0)
-		return -EINVAL;
-
-	memset(&format->format, 0, sizeof(format->format));
-	adv7511_fill_format(state, &format->format);
-
-	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
-		struct v4l2_mbus_framefmt *fmt;
-
-		fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
-		format->format.code = fmt->code;
-		format->format.colorspace = fmt->colorspace;
-		format->format.ycbcr_enc = fmt->ycbcr_enc;
-		format->format.quantization = fmt->quantization;
-		format->format.xfer_func = fmt->xfer_func;
-	} else {
-		format->format.code = state->fmt_code;
-		format->format.colorspace = state->colorspace;
-		format->format.ycbcr_enc = state->ycbcr_enc;
-		format->format.quantization = state->quantization;
-		format->format.xfer_func = state->xfer_func;
-	}
-
-	return 0;
-}
-
-static int adv7511_set_fmt(struct v4l2_subdev *sd,
-			   struct v4l2_subdev_pad_config *cfg,
-			   struct v4l2_subdev_format *format)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	/*
-	 * Bitfield namings come the CEA-861-F standard, table 8 "Auxiliary
-	 * Video Information (AVI) InfoFrame Format"
-	 *
-	 * c = Colorimetry
-	 * ec = Extended Colorimetry
-	 * y = RGB or YCbCr
-	 * q = RGB Quantization Range
-	 * yq = YCC Quantization Range
-	 */
-	u8 c = HDMI_COLORIMETRY_NONE;
-	u8 ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
-	u8 y = HDMI_COLORSPACE_RGB;
-	u8 q = HDMI_QUANTIZATION_RANGE_DEFAULT;
-	u8 yq = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
-	u8 itc = state->content_type != V4L2_DV_IT_CONTENT_TYPE_NO_ITC;
-	u8 cn = itc ? state->content_type : V4L2_DV_IT_CONTENT_TYPE_GRAPHICS;
-
-	if (format->pad != 0)
-		return -EINVAL;
-	switch (format->format.code) {
-	case MEDIA_BUS_FMT_UYVY8_1X16:
-	case MEDIA_BUS_FMT_YUYV8_1X16:
-	case MEDIA_BUS_FMT_RGB888_1X24:
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	adv7511_fill_format(state, &format->format);
-	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
-		struct v4l2_mbus_framefmt *fmt;
-
-		fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
-		fmt->code = format->format.code;
-		fmt->colorspace = format->format.colorspace;
-		fmt->ycbcr_enc = format->format.ycbcr_enc;
-		fmt->quantization = format->format.quantization;
-		fmt->xfer_func = format->format.xfer_func;
-		return 0;
-	}
-
-	switch (format->format.code) {
-	case MEDIA_BUS_FMT_UYVY8_1X16:
-		adv7511_wr_and_or(sd, 0x15, 0xf0, 0x01);
-		adv7511_wr_and_or(sd, 0x16, 0x03, 0xb8);
-		y = HDMI_COLORSPACE_YUV422;
-		break;
-	case MEDIA_BUS_FMT_YUYV8_1X16:
-		adv7511_wr_and_or(sd, 0x15, 0xf0, 0x01);
-		adv7511_wr_and_or(sd, 0x16, 0x03, 0xbc);
-		y = HDMI_COLORSPACE_YUV422;
-		break;
-	case MEDIA_BUS_FMT_RGB888_1X24:
-	default:
-		adv7511_wr_and_or(sd, 0x15, 0xf0, 0x00);
-		adv7511_wr_and_or(sd, 0x16, 0x03, 0x00);
-		break;
-	}
-	state->fmt_code = format->format.code;
-	state->colorspace = format->format.colorspace;
-	state->ycbcr_enc = format->format.ycbcr_enc;
-	state->quantization = format->format.quantization;
-	state->xfer_func = format->format.xfer_func;
-
-	switch (format->format.colorspace) {
-	case V4L2_COLORSPACE_OPRGB:
-		c = HDMI_COLORIMETRY_EXTENDED;
-		ec = y ? HDMI_EXTENDED_COLORIMETRY_OPYCC_601 :
-			 HDMI_EXTENDED_COLORIMETRY_OPRGB;
-		break;
-	case V4L2_COLORSPACE_SMPTE170M:
-		c = y ? HDMI_COLORIMETRY_ITU_601 : HDMI_COLORIMETRY_NONE;
-		if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_XV601) {
-			c = HDMI_COLORIMETRY_EXTENDED;
-			ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
-		}
-		break;
-	case V4L2_COLORSPACE_REC709:
-		c = y ? HDMI_COLORIMETRY_ITU_709 : HDMI_COLORIMETRY_NONE;
-		if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_XV709) {
-			c = HDMI_COLORIMETRY_EXTENDED;
-			ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
-		}
-		break;
-	case V4L2_COLORSPACE_SRGB:
-		c = y ? HDMI_COLORIMETRY_EXTENDED : HDMI_COLORIMETRY_NONE;
-		ec = y ? HDMI_EXTENDED_COLORIMETRY_S_YCC_601 :
-			 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
-		break;
-	case V4L2_COLORSPACE_BT2020:
-		c = HDMI_COLORIMETRY_EXTENDED;
-		if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_BT2020_CONST_LUM)
-			ec = 5; /* Not yet available in hdmi.h */
-		else
-			ec = 6; /* Not yet available in hdmi.h */
-		break;
-	default:
-		break;
-	}
-
-	/*
-	 * CEA-861-F says that for RGB formats the YCC range must match the
-	 * RGB range, although sources should ignore the YCC range.
-	 *
-	 * The RGB quantization range shouldn't be non-zero if the EDID doesn't
-	 * have the Q bit set in the Video Capabilities Data Block, however this
-	 * isn't checked at the moment. The assumption is that the application
-	 * knows the EDID and can detect this.
-	 *
-	 * The same is true for the YCC quantization range: non-standard YCC
-	 * quantization ranges should only be sent if the EDID has the YQ bit
-	 * set in the Video Capabilities Data Block.
-	 */
-	switch (format->format.quantization) {
-	case V4L2_QUANTIZATION_FULL_RANGE:
-		q = y ? HDMI_QUANTIZATION_RANGE_DEFAULT :
-			HDMI_QUANTIZATION_RANGE_FULL;
-		yq = q ? q - 1 : HDMI_YCC_QUANTIZATION_RANGE_FULL;
-		break;
-	case V4L2_QUANTIZATION_LIM_RANGE:
-		q = y ? HDMI_QUANTIZATION_RANGE_DEFAULT :
-			HDMI_QUANTIZATION_RANGE_LIMITED;
-		yq = q ? q - 1 : HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
-		break;
-	}
-
-	adv7511_wr_and_or(sd, 0x4a, 0xbf, 0);
-	adv7511_wr_and_or(sd, 0x55, 0x9f, y << 5);
-	adv7511_wr_and_or(sd, 0x56, 0x3f, c << 6);
-	adv7511_wr_and_or(sd, 0x57, 0x83, (ec << 4) | (q << 2) | (itc << 7));
-	adv7511_wr_and_or(sd, 0x59, 0x0f, (yq << 6) | (cn << 4));
-	adv7511_wr_and_or(sd, 0x4a, 0xff, 1);
-	adv7511_set_rgb_quantization_mode(sd, state->rgb_quantization_range_ctrl);
-
-	return 0;
-}
-
-static const struct v4l2_subdev_pad_ops adv7511_pad_ops = {
-	.get_edid = adv7511_get_edid,
-	.enum_mbus_code = adv7511_enum_mbus_code,
-	.get_fmt = adv7511_get_fmt,
-	.set_fmt = adv7511_set_fmt,
-	.enum_dv_timings = adv7511_enum_dv_timings,
-	.dv_timings_cap = adv7511_dv_timings_cap,
-};
-
-/* --------------------- SUBDEV OPS --------------------------------------- */
-
-static const struct v4l2_subdev_ops adv7511_ops = {
-	.core  = &adv7511_core_ops,
-	.pad  = &adv7511_pad_ops,
-	.video = &adv7511_video_ops,
-	.audio = &adv7511_audio_ops,
-};
-
-/* ----------------------------------------------------------------------- */
-static void adv7511_dbg_dump_edid(int lvl, int debug, struct v4l2_subdev *sd, int segment, u8 *buf)
-{
-	if (debug >= lvl) {
-		int i, j;
-		v4l2_dbg(lvl, debug, sd, "edid segment %d\n", segment);
-		for (i = 0; i < 256; i += 16) {
-			u8 b[128];
-			u8 *bp = b;
-			if (i == 128)
-				v4l2_dbg(lvl, debug, sd, "\n");
-			for (j = i; j < i + 16; j++) {
-				sprintf(bp, "0x%02x, ", buf[j]);
-				bp += 6;
-			}
-			bp[0] = '\0';
-			v4l2_dbg(lvl, debug, sd, "%s\n", b);
-		}
-	}
-}
-
-static void adv7511_notify_no_edid(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	struct adv7511_edid_detect ed;
-
-	/* We failed to read the EDID, so send an event for this. */
-	ed.present = false;
-	ed.segment = adv7511_rd(sd, 0xc4);
-	ed.phys_addr = CEC_PHYS_ADDR_INVALID;
-	cec_s_phys_addr(state->cec_adap, ed.phys_addr, false);
-	v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
-	v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x0);
-}
-
-static void adv7511_edid_handler(struct work_struct *work)
-{
-	struct delayed_work *dwork = to_delayed_work(work);
-	struct adv7511_state *state = container_of(dwork, struct adv7511_state, edid_handler);
-	struct v4l2_subdev *sd = &state->sd;
-
-	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
-
-	if (adv7511_check_edid_status(sd)) {
-		/* Return if we received the EDID. */
-		return;
-	}
-
-	if (adv7511_have_hotplug(sd)) {
-		/* We must retry reading the EDID several times, it is possible
-		 * that initially the EDID couldn't be read due to i2c errors
-		 * (DVI connectors are particularly prone to this problem). */
-		if (state->edid.read_retries) {
-			state->edid.read_retries--;
-			v4l2_dbg(1, debug, sd, "%s: edid read failed\n", __func__);
-			state->have_monitor = false;
-			adv7511_s_power(sd, false);
-			adv7511_s_power(sd, true);
-			queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
-			return;
-		}
-	}
-
-	/* We failed to read the EDID, so send an event for this. */
-	adv7511_notify_no_edid(sd);
-	v4l2_dbg(1, debug, sd, "%s: no edid found\n", __func__);
-}
-
-static void adv7511_audio_setup(struct v4l2_subdev *sd)
-{
-	v4l2_dbg(1, debug, sd, "%s\n", __func__);
-
-	adv7511_s_i2s_clock_freq(sd, 48000);
-	adv7511_s_clock_freq(sd, 48000);
-	adv7511_s_routing(sd, 0, 0, 0);
-}
-
-/* Configure hdmi transmitter. */
-static void adv7511_setup(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	v4l2_dbg(1, debug, sd, "%s\n", __func__);
-
-	/* Input format: RGB 4:4:4 */
-	adv7511_wr_and_or(sd, 0x15, 0xf0, 0x0);
-	/* Output format: RGB 4:4:4 */
-	adv7511_wr_and_or(sd, 0x16, 0x7f, 0x0);
-	/* 1st order interpolation 4:2:2 -> 4:4:4 up conversion, Aspect ratio: 16:9 */
-	adv7511_wr_and_or(sd, 0x17, 0xf9, 0x06);
-	/* Disable pixel repetition */
-	adv7511_wr_and_or(sd, 0x3b, 0x9f, 0x0);
-	/* Disable CSC */
-	adv7511_wr_and_or(sd, 0x18, 0x7f, 0x0);
-	/* Output format: RGB 4:4:4, Active Format Information is valid,
-	 * underscanned */
-	adv7511_wr_and_or(sd, 0x55, 0x9c, 0x12);
-	/* AVI Info frame packet enable, Audio Info frame disable */
-	adv7511_wr_and_or(sd, 0x44, 0xe7, 0x10);
-	/* Colorimetry, Active format aspect ratio: same as picure. */
-	adv7511_wr(sd, 0x56, 0xa8);
-	/* No encryption */
-	adv7511_wr_and_or(sd, 0xaf, 0xed, 0x0);
-
-	/* Positive clk edge capture for input video clock */
-	adv7511_wr_and_or(sd, 0xba, 0x1f, 0x60);
-
-	adv7511_audio_setup(sd);
-
-	v4l2_ctrl_handler_setup(&state->hdl);
-}
-
-static void adv7511_notify_monitor_detect(struct v4l2_subdev *sd)
-{
-	struct adv7511_monitor_detect mdt;
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	mdt.present = state->have_monitor;
-	v4l2_subdev_notify(sd, ADV7511_MONITOR_DETECT, (void *)&mdt);
-}
-
-static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	/* read hotplug and rx-sense state */
-	u8 status = adv7511_rd(sd, 0x42);
-
-	v4l2_dbg(1, debug, sd, "%s: status: 0x%x%s%s\n",
-			 __func__,
-			 status,
-			 status & MASK_ADV7511_HPD_DETECT ? ", hotplug" : "",
-			 status & MASK_ADV7511_MSEN_DETECT ? ", rx-sense" : "");
-
-	/* update read only ctrls */
-	v4l2_ctrl_s_ctrl(state->hotplug_ctrl, adv7511_have_hotplug(sd) ? 0x1 : 0x0);
-	v4l2_ctrl_s_ctrl(state->rx_sense_ctrl, adv7511_have_rx_sense(sd) ? 0x1 : 0x0);
-
-	if ((status & MASK_ADV7511_HPD_DETECT) && ((status & MASK_ADV7511_MSEN_DETECT) || state->edid.segments)) {
-		v4l2_dbg(1, debug, sd, "%s: hotplug and (rx-sense or edid)\n", __func__);
-		if (!state->have_monitor) {
-			v4l2_dbg(1, debug, sd, "%s: monitor detected\n", __func__);
-			state->have_monitor = true;
-			adv7511_set_isr(sd, true);
-			if (!adv7511_s_power(sd, true)) {
-				v4l2_dbg(1, debug, sd, "%s: monitor detected, powerup failed\n", __func__);
-				return;
-			}
-			adv7511_setup(sd);
-			adv7511_notify_monitor_detect(sd);
-			state->edid.read_retries = EDID_MAX_RETRIES;
-			queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
-		}
-	} else if (status & MASK_ADV7511_HPD_DETECT) {
-		v4l2_dbg(1, debug, sd, "%s: hotplug detected\n", __func__);
-		state->edid.read_retries = EDID_MAX_RETRIES;
-		queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
-	} else if (!(status & MASK_ADV7511_HPD_DETECT)) {
-		v4l2_dbg(1, debug, sd, "%s: hotplug not detected\n", __func__);
-		if (state->have_monitor) {
-			v4l2_dbg(1, debug, sd, "%s: monitor not detected\n", __func__);
-			state->have_monitor = false;
-			adv7511_notify_monitor_detect(sd);
-		}
-		adv7511_s_power(sd, false);
-		memset(&state->edid, 0, sizeof(struct adv7511_state_edid));
-		adv7511_notify_no_edid(sd);
-	}
-}
-
-static bool edid_block_verify_crc(u8 *edid_block)
-{
-	u8 sum = 0;
-	int i;
-
-	for (i = 0; i < 128; i++)
-		sum += edid_block[i];
-	return sum == 0;
-}
-
-static bool edid_verify_crc(struct v4l2_subdev *sd, u32 segment)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	u32 blocks = state->edid.blocks;
-	u8 *data = state->edid.data;
-
-	if (!edid_block_verify_crc(&data[segment * 256]))
-		return false;
-	if ((segment + 1) * 2 <= blocks)
-		return edid_block_verify_crc(&data[segment * 256 + 128]);
-	return true;
-}
-
-static bool edid_verify_header(struct v4l2_subdev *sd, u32 segment)
-{
-	static const u8 hdmi_header[] = {
-		0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
-	};
-	struct adv7511_state *state = get_adv7511_state(sd);
-	u8 *data = state->edid.data;
-
-	if (segment != 0)
-		return true;
-	return !memcmp(data, hdmi_header, sizeof(hdmi_header));
-}
-
-static bool adv7511_check_edid_status(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	u8 edidRdy = adv7511_rd(sd, 0xc5);
-
-	v4l2_dbg(1, debug, sd, "%s: edid ready (retries: %d)\n",
-			 __func__, EDID_MAX_RETRIES - state->edid.read_retries);
-
-	if (state->edid.complete)
-		return true;
-
-	if (edidRdy & MASK_ADV7511_EDID_RDY) {
-		int segment = adv7511_rd(sd, 0xc4);
-		struct adv7511_edid_detect ed;
-
-		if (segment >= EDID_MAX_SEGM) {
-			v4l2_err(sd, "edid segment number too big\n");
-			return false;
-		}
-		v4l2_dbg(1, debug, sd, "%s: got segment %d\n", __func__, segment);
-		adv7511_edid_rd(sd, 256, &state->edid.data[segment * 256]);
-		adv7511_dbg_dump_edid(2, debug, sd, segment, &state->edid.data[segment * 256]);
-		if (segment == 0) {
-			state->edid.blocks = state->edid.data[0x7e] + 1;
-			v4l2_dbg(1, debug, sd, "%s: %d blocks in total\n", __func__, state->edid.blocks);
-		}
-		if (!edid_verify_crc(sd, segment) ||
-		    !edid_verify_header(sd, segment)) {
-			/* edid crc error, force reread of edid segment */
-			v4l2_err(sd, "%s: edid crc or header error\n", __func__);
-			state->have_monitor = false;
-			adv7511_s_power(sd, false);
-			adv7511_s_power(sd, true);
-			return false;
-		}
-		/* one more segment read ok */
-		state->edid.segments = segment + 1;
-		v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x1);
-		if (((state->edid.data[0x7e] >> 1) + 1) > state->edid.segments) {
-			/* Request next EDID segment */
-			v4l2_dbg(1, debug, sd, "%s: request segment %d\n", __func__, state->edid.segments);
-			adv7511_wr(sd, 0xc9, 0xf);
-			adv7511_wr(sd, 0xc4, state->edid.segments);
-			state->edid.read_retries = EDID_MAX_RETRIES;
-			queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
-			return false;
-		}
-
-		v4l2_dbg(1, debug, sd, "%s: edid complete with %d segment(s)\n", __func__, state->edid.segments);
-		state->edid.complete = true;
-		ed.phys_addr = cec_get_edid_phys_addr(state->edid.data,
-						      state->edid.segments * 256,
-						      NULL);
-		/* report when we have all segments
-		   but report only for segment 0
-		 */
-		ed.present = true;
-		ed.segment = 0;
-		state->edid_detect_counter++;
-		cec_s_phys_addr(state->cec_adap, ed.phys_addr, false);
-		v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
-		return ed.present;
-	}
-
-	return false;
-}
-
-static int adv7511_registered(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
-	int err;
-
-	err = cec_register_adapter(state->cec_adap, &client->dev);
-	if (err)
-		cec_delete_adapter(state->cec_adap);
-	return err;
-}
-
-static void adv7511_unregistered(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	cec_unregister_adapter(state->cec_adap);
-}
-
-static const struct v4l2_subdev_internal_ops adv7511_int_ops = {
-	.registered = adv7511_registered,
-	.unregistered = adv7511_unregistered,
-};
-
-/* ----------------------------------------------------------------------- */
-/* Setup ADV7511 */
-static void adv7511_init_setup(struct v4l2_subdev *sd)
-{
-	struct adv7511_state *state = get_adv7511_state(sd);
-	struct adv7511_state_edid *edid = &state->edid;
-	u32 cec_clk = state->pdata.cec_clk;
-	u8 ratio;
-
-	v4l2_dbg(1, debug, sd, "%s\n", __func__);
-
-	/* clear all interrupts */
-	adv7511_wr(sd, 0x96, 0xff);
-	adv7511_wr(sd, 0x97, 0xff);
-	/*
-	 * Stop HPD from resetting a lot of registers.
-	 * It might leave the chip in a partly un-initialized state,
-	 * in particular with regards to hotplug bounces.
-	 */
-	adv7511_wr_and_or(sd, 0xd6, 0x3f, 0xc0);
-	memset(edid, 0, sizeof(struct adv7511_state_edid));
-	state->have_monitor = false;
-	adv7511_set_isr(sd, false);
-	adv7511_s_stream(sd, false);
-	adv7511_s_audio_stream(sd, false);
-
-	if (state->i2c_cec == NULL)
-		return;
-
-	v4l2_dbg(1, debug, sd, "%s: cec_clk %d\n", __func__, cec_clk);
-
-	/* cec soft reset */
-	adv7511_cec_write(sd, 0x50, 0x01);
-	adv7511_cec_write(sd, 0x50, 0x00);
-
-	/* legacy mode */
-	adv7511_cec_write(sd, 0x4a, 0x00);
-	adv7511_cec_write(sd, 0x4a, 0x07);
-
-	if (cec_clk % 750000 != 0)
-		v4l2_err(sd, "%s: cec_clk %d, not multiple of 750 Khz\n",
-			 __func__, cec_clk);
-
-	ratio = (cec_clk / 750000) - 1;
-	adv7511_cec_write(sd, 0x4e, ratio << 2);
-}
-
-static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *id)
-{
-	struct adv7511_state *state;
-	struct adv7511_platform_data *pdata = client->dev.platform_data;
-	struct v4l2_ctrl_handler *hdl;
-	struct v4l2_subdev *sd;
-	u8 chip_id[2];
-	int err = -EIO;
-
-	/* Check if the adapter supports the needed features */
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		return -EIO;
-
-	state = devm_kzalloc(&client->dev, sizeof(struct adv7511_state), GFP_KERNEL);
-	if (!state)
-		return -ENOMEM;
-
-	/* Platform data */
-	if (!pdata) {
-		v4l_err(client, "No platform data!\n");
-		return -ENODEV;
-	}
-	memcpy(&state->pdata, pdata, sizeof(state->pdata));
-	state->fmt_code = MEDIA_BUS_FMT_RGB888_1X24;
-	state->colorspace = V4L2_COLORSPACE_SRGB;
-
-	sd = &state->sd;
-
-	v4l2_dbg(1, debug, sd, "detecting adv7511 client on address 0x%x\n",
-			 client->addr << 1);
-
-	v4l2_i2c_subdev_init(sd, client, &adv7511_ops);
-	sd->internal_ops = &adv7511_int_ops;
-
-	hdl = &state->hdl;
-	v4l2_ctrl_handler_init(hdl, 10);
-	/* add in ascending ID order */
-	state->hdmi_mode_ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
-			V4L2_CID_DV_TX_MODE, V4L2_DV_TX_MODE_HDMI,
-			0, V4L2_DV_TX_MODE_DVI_D);
-	state->hotplug_ctrl = v4l2_ctrl_new_std(hdl, NULL,
-			V4L2_CID_DV_TX_HOTPLUG, 0, 1, 0, 0);
-	state->rx_sense_ctrl = v4l2_ctrl_new_std(hdl, NULL,
-			V4L2_CID_DV_TX_RXSENSE, 0, 1, 0, 0);
-	state->have_edid0_ctrl = v4l2_ctrl_new_std(hdl, NULL,
-			V4L2_CID_DV_TX_EDID_PRESENT, 0, 1, 0, 0);
-	state->rgb_quantization_range_ctrl =
-		v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
-			V4L2_CID_DV_TX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
-			0, V4L2_DV_RGB_RANGE_AUTO);
-	state->content_type_ctrl =
-		v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
-			V4L2_CID_DV_TX_IT_CONTENT_TYPE, V4L2_DV_IT_CONTENT_TYPE_NO_ITC,
-			0, V4L2_DV_IT_CONTENT_TYPE_NO_ITC);
-	sd->ctrl_handler = hdl;
-	if (hdl->error) {
-		err = hdl->error;
-		goto err_hdl;
-	}
-	state->pad.flags = MEDIA_PAD_FL_SINK;
-	sd->entity.function = MEDIA_ENT_F_DV_ENCODER;
-	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
-	if (err)
-		goto err_hdl;
-
-	/* EDID and CEC i2c addr */
-	state->i2c_edid_addr = state->pdata.i2c_edid << 1;
-	state->i2c_cec_addr = state->pdata.i2c_cec << 1;
-	state->i2c_pktmem_addr = state->pdata.i2c_pktmem << 1;
-
-	state->chip_revision = adv7511_rd(sd, 0x0);
-	chip_id[0] = adv7511_rd(sd, 0xf5);
-	chip_id[1] = adv7511_rd(sd, 0xf6);
-	if (chip_id[0] != 0x75 || chip_id[1] != 0x11) {
-		v4l2_err(sd, "chip_id != 0x7511, read 0x%02x%02x\n", chip_id[0],
-			 chip_id[1]);
-		err = -EIO;
-		goto err_entity;
-	}
-
-	state->i2c_edid = i2c_new_dummy(client->adapter,
-					state->i2c_edid_addr >> 1);
-	if (state->i2c_edid == NULL) {
-		v4l2_err(sd, "failed to register edid i2c client\n");
-		err = -ENOMEM;
-		goto err_entity;
-	}
-
-	adv7511_wr(sd, 0xe1, state->i2c_cec_addr);
-	if (state->pdata.cec_clk < 3000000 ||
-	    state->pdata.cec_clk > 100000000) {
-		v4l2_err(sd, "%s: cec_clk %u outside range, disabling cec\n",
-				__func__, state->pdata.cec_clk);
-		state->pdata.cec_clk = 0;
-	}
-
-	if (state->pdata.cec_clk) {
-		state->i2c_cec = i2c_new_dummy(client->adapter,
-					       state->i2c_cec_addr >> 1);
-		if (state->i2c_cec == NULL) {
-			v4l2_err(sd, "failed to register cec i2c client\n");
-			err = -ENOMEM;
-			goto err_unreg_edid;
-		}
-		adv7511_wr(sd, 0xe2, 0x00); /* power up cec section */
-	} else {
-		adv7511_wr(sd, 0xe2, 0x01); /* power down cec section */
-	}
-
-	state->i2c_pktmem = i2c_new_dummy(client->adapter, state->i2c_pktmem_addr >> 1);
-	if (state->i2c_pktmem == NULL) {
-		v4l2_err(sd, "failed to register pktmem i2c client\n");
-		err = -ENOMEM;
-		goto err_unreg_cec;
-	}
-
-	state->work_queue = create_singlethread_workqueue(sd->name);
-	if (state->work_queue == NULL) {
-		v4l2_err(sd, "could not create workqueue\n");
-		err = -ENOMEM;
-		goto err_unreg_pktmem;
-	}
-
-	INIT_DELAYED_WORK(&state->edid_handler, adv7511_edid_handler);
-
-	adv7511_init_setup(sd);
-
-#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
-	state->cec_adap = cec_allocate_adapter(&adv7511_cec_adap_ops,
-		state, dev_name(&client->dev), CEC_CAP_DEFAULTS,
-		ADV7511_MAX_ADDRS);
-	err = PTR_ERR_OR_ZERO(state->cec_adap);
-	if (err) {
-		destroy_workqueue(state->work_queue);
-		goto err_unreg_pktmem;
-	}
-#endif
-
-	adv7511_set_isr(sd, true);
-	adv7511_check_monitor_present_status(sd);
-
-	v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
-			  client->addr << 1, client->adapter->name);
-	return 0;
-
-err_unreg_pktmem:
-	i2c_unregister_device(state->i2c_pktmem);
-err_unreg_cec:
-	if (state->i2c_cec)
-		i2c_unregister_device(state->i2c_cec);
-err_unreg_edid:
-	i2c_unregister_device(state->i2c_edid);
-err_entity:
-	media_entity_cleanup(&sd->entity);
-err_hdl:
-	v4l2_ctrl_handler_free(&state->hdl);
-	return err;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int adv7511_remove(struct i2c_client *client)
-{
-	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-	struct adv7511_state *state = get_adv7511_state(sd);
-
-	state->chip_revision = -1;
-
-	v4l2_dbg(1, debug, sd, "%s removed @ 0x%x (%s)\n", client->name,
-		 client->addr << 1, client->adapter->name);
-
-	adv7511_set_isr(sd, false);
-	adv7511_init_setup(sd);
-	cancel_delayed_work(&state->edid_handler);
-	i2c_unregister_device(state->i2c_edid);
-	if (state->i2c_cec)
-		i2c_unregister_device(state->i2c_cec);
-	i2c_unregister_device(state->i2c_pktmem);
-	destroy_workqueue(state->work_queue);
-	v4l2_device_unregister_subdev(sd);
-	media_entity_cleanup(&sd->entity);
-	v4l2_ctrl_handler_free(sd->ctrl_handler);
-	return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static const struct i2c_device_id adv7511_id[] = {
-	{ "adv7511", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, adv7511_id);
-
-static struct i2c_driver adv7511_driver = {
-	.driver = {
-		.name = "adv7511",
-	},
-	.probe = adv7511_probe,
-	.remove = adv7511_remove,
-	.id_table = adv7511_id,
-};
-
-module_i2c_driver(adv7511_driver);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/i2c/adv7511-v4l2.c linux-libre-5.1.21-gnu/drivers/media/i2c/adv7511-v4l2.c
--- linux-libre-5.1-gnu/drivers/media/i2c/adv7511-v4l2.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/drivers/media/i2c/adv7511-v4l2.c	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,1997 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Analog Devices ADV7511 HDMI Transmitter Device Driver
+ *
+ * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+/*
+ * This file is named adv7511-v4l2.c so it doesn't conflict with the Analog
+ * Device ADV7511 (config fragment CONFIG_DRM_I2C_ADV7511).
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+#include <linux/gpio.h>
+#include <linux/workqueue.h>
+#include <linux/hdmi.h>
+#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-dv-timings.h>
+#include <media/i2c/adv7511.h>
+#include <media/cec.h>
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "debug level (0-2)");
+
+MODULE_DESCRIPTION("Analog Devices ADV7511 HDMI Transmitter Device Driver");
+MODULE_AUTHOR("Hans Verkuil");
+MODULE_LICENSE("GPL v2");
+
+#define MASK_ADV7511_EDID_RDY_INT   0x04
+#define MASK_ADV7511_MSEN_INT       0x40
+#define MASK_ADV7511_HPD_INT        0x80
+
+#define MASK_ADV7511_HPD_DETECT     0x40
+#define MASK_ADV7511_MSEN_DETECT    0x20
+#define MASK_ADV7511_EDID_RDY       0x10
+
+#define EDID_MAX_RETRIES (8)
+#define EDID_DELAY 250
+#define EDID_MAX_SEGM 8
+
+#define ADV7511_MAX_WIDTH 1920
+#define ADV7511_MAX_HEIGHT 1200
+#define ADV7511_MIN_PIXELCLOCK 20000000
+#define ADV7511_MAX_PIXELCLOCK 225000000
+
+#define ADV7511_MAX_ADDRS (3)
+
+/*
+**********************************************************************
+*
+*  Arrays with configuration parameters for the ADV7511
+*
+**********************************************************************
+*/
+
+struct i2c_reg_value {
+	unsigned char reg;
+	unsigned char value;
+};
+
+struct adv7511_state_edid {
+	/* total number of blocks */
+	u32 blocks;
+	/* Number of segments read */
+	u32 segments;
+	u8 data[EDID_MAX_SEGM * 256];
+	/* Number of EDID read retries left */
+	unsigned read_retries;
+	bool complete;
+};
+
+struct adv7511_state {
+	struct adv7511_platform_data pdata;
+	struct v4l2_subdev sd;
+	struct media_pad pad;
+	struct v4l2_ctrl_handler hdl;
+	int chip_revision;
+	u8 i2c_edid_addr;
+	u8 i2c_pktmem_addr;
+	u8 i2c_cec_addr;
+
+	struct i2c_client *i2c_cec;
+	struct cec_adapter *cec_adap;
+	u8   cec_addr[ADV7511_MAX_ADDRS];
+	u8   cec_valid_addrs;
+	bool cec_enabled_adap;
+
+	/* Is the adv7511 powered on? */
+	bool power_on;
+	/* Did we receive hotplug and rx-sense signals? */
+	bool have_monitor;
+	bool enabled_irq;
+	/* timings from s_dv_timings */
+	struct v4l2_dv_timings dv_timings;
+	u32 fmt_code;
+	u32 colorspace;
+	u32 ycbcr_enc;
+	u32 quantization;
+	u32 xfer_func;
+	u32 content_type;
+	/* controls */
+	struct v4l2_ctrl *hdmi_mode_ctrl;
+	struct v4l2_ctrl *hotplug_ctrl;
+	struct v4l2_ctrl *rx_sense_ctrl;
+	struct v4l2_ctrl *have_edid0_ctrl;
+	struct v4l2_ctrl *rgb_quantization_range_ctrl;
+	struct v4l2_ctrl *content_type_ctrl;
+	struct i2c_client *i2c_edid;
+	struct i2c_client *i2c_pktmem;
+	struct adv7511_state_edid edid;
+	/* Running counter of the number of detected EDIDs (for debugging) */
+	unsigned edid_detect_counter;
+	struct workqueue_struct *work_queue;
+	struct delayed_work edid_handler; /* work entry */
+};
+
+static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd);
+static bool adv7511_check_edid_status(struct v4l2_subdev *sd);
+static void adv7511_setup(struct v4l2_subdev *sd);
+static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq);
+static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq);
+
+
+static const struct v4l2_dv_timings_cap adv7511_timings_cap = {
+	.type = V4L2_DV_BT_656_1120,
+	/* keep this initialization for compatibility with GCC < 4.4.6 */
+	.reserved = { 0 },
+	V4L2_INIT_BT_TIMINGS(640, ADV7511_MAX_WIDTH, 350, ADV7511_MAX_HEIGHT,
+		ADV7511_MIN_PIXELCLOCK, ADV7511_MAX_PIXELCLOCK,
+		V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
+			V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
+		V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
+			V4L2_DV_BT_CAP_CUSTOM)
+};
+
+static inline struct adv7511_state *get_adv7511_state(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct adv7511_state, sd);
+}
+
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+	return &container_of(ctrl->handler, struct adv7511_state, hdl)->sd;
+}
+
+/* ------------------------ I2C ----------------------------------------------- */
+
+static s32 adv_smbus_read_byte_data_check(struct i2c_client *client,
+					  u8 command, bool check)
+{
+	union i2c_smbus_data data;
+
+	if (!i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+			    I2C_SMBUS_READ, command,
+			    I2C_SMBUS_BYTE_DATA, &data))
+		return data.byte;
+	if (check)
+		v4l_err(client, "error reading %02x, %02x\n",
+			client->addr, command);
+	return -1;
+}
+
+static s32 adv_smbus_read_byte_data(struct i2c_client *client, u8 command)
+{
+	int i;
+	for (i = 0; i < 3; i++) {
+		int ret = adv_smbus_read_byte_data_check(client, command, true);
+		if (ret >= 0) {
+			if (i)
+				v4l_err(client, "read ok after %d retries\n", i);
+			return ret;
+		}
+	}
+	v4l_err(client, "read failed\n");
+	return -1;
+}
+
+static int adv7511_rd(struct v4l2_subdev *sd, u8 reg)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return adv_smbus_read_byte_data(client, reg);
+}
+
+static int adv7511_wr(struct v4l2_subdev *sd, u8 reg, u8 val)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int ret;
+	int i;
+
+	for (i = 0; i < 3; i++) {
+		ret = i2c_smbus_write_byte_data(client, reg, val);
+		if (ret == 0)
+			return 0;
+	}
+	v4l2_err(sd, "%s: i2c write error\n", __func__);
+	return ret;
+}
+
+/* To set specific bits in the register, a clear-mask is given (to be AND-ed),
+   and then the value-mask (to be OR-ed). */
+static inline void adv7511_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask)
+{
+	adv7511_wr(sd, reg, (adv7511_rd(sd, reg) & clr_mask) | val_mask);
+}
+
+static int adv_smbus_read_i2c_block_data(struct i2c_client *client,
+					 u8 command, unsigned length, u8 *values)
+{
+	union i2c_smbus_data data;
+	int ret;
+
+	if (length > I2C_SMBUS_BLOCK_MAX)
+		length = I2C_SMBUS_BLOCK_MAX;
+	data.block[0] = length;
+
+	ret = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+			     I2C_SMBUS_READ, command,
+			     I2C_SMBUS_I2C_BLOCK_DATA, &data);
+	memcpy(values, data.block + 1, length);
+	return ret;
+}
+
+static void adv7511_edid_rd(struct v4l2_subdev *sd, uint16_t len, uint8_t *buf)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	int i;
+	int err = 0;
+
+	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
+
+	for (i = 0; !err && i < len; i += I2C_SMBUS_BLOCK_MAX)
+		err = adv_smbus_read_i2c_block_data(state->i2c_edid, i,
+						    I2C_SMBUS_BLOCK_MAX, buf + i);
+	if (err)
+		v4l2_err(sd, "%s: i2c read error\n", __func__);
+}
+
+static inline int adv7511_cec_read(struct v4l2_subdev *sd, u8 reg)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	return i2c_smbus_read_byte_data(state->i2c_cec, reg);
+}
+
+static int adv7511_cec_write(struct v4l2_subdev *sd, u8 reg, u8 val)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	int ret;
+	int i;
+
+	for (i = 0; i < 3; i++) {
+		ret = i2c_smbus_write_byte_data(state->i2c_cec, reg, val);
+		if (ret == 0)
+			return 0;
+	}
+	v4l2_err(sd, "%s: I2C Write Problem\n", __func__);
+	return ret;
+}
+
+static inline int adv7511_cec_write_and_or(struct v4l2_subdev *sd, u8 reg, u8 mask,
+				   u8 val)
+{
+	return adv7511_cec_write(sd, reg, (adv7511_cec_read(sd, reg) & mask) | val);
+}
+
+static int adv7511_pktmem_rd(struct v4l2_subdev *sd, u8 reg)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	return adv_smbus_read_byte_data(state->i2c_pktmem, reg);
+}
+
+static int adv7511_pktmem_wr(struct v4l2_subdev *sd, u8 reg, u8 val)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	int ret;
+	int i;
+
+	for (i = 0; i < 3; i++) {
+		ret = i2c_smbus_write_byte_data(state->i2c_pktmem, reg, val);
+		if (ret == 0)
+			return 0;
+	}
+	v4l2_err(sd, "%s: i2c write error\n", __func__);
+	return ret;
+}
+
+/* To set specific bits in the register, a clear-mask is given (to be AND-ed),
+   and then the value-mask (to be OR-ed). */
+static inline void adv7511_pktmem_wr_and_or(struct v4l2_subdev *sd, u8 reg, u8 clr_mask, u8 val_mask)
+{
+	adv7511_pktmem_wr(sd, reg, (adv7511_pktmem_rd(sd, reg) & clr_mask) | val_mask);
+}
+
+static inline bool adv7511_have_hotplug(struct v4l2_subdev *sd)
+{
+	return adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT;
+}
+
+static inline bool adv7511_have_rx_sense(struct v4l2_subdev *sd)
+{
+	return adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT;
+}
+
+static void adv7511_csc_conversion_mode(struct v4l2_subdev *sd, u8 mode)
+{
+	adv7511_wr_and_or(sd, 0x18, 0x9f, (mode & 0x3)<<5);
+}
+
+static void adv7511_csc_coeff(struct v4l2_subdev *sd,
+			      u16 A1, u16 A2, u16 A3, u16 A4,
+			      u16 B1, u16 B2, u16 B3, u16 B4,
+			      u16 C1, u16 C2, u16 C3, u16 C4)
+{
+	/* A */
+	adv7511_wr_and_or(sd, 0x18, 0xe0, A1>>8);
+	adv7511_wr(sd, 0x19, A1);
+	adv7511_wr_and_or(sd, 0x1A, 0xe0, A2>>8);
+	adv7511_wr(sd, 0x1B, A2);
+	adv7511_wr_and_or(sd, 0x1c, 0xe0, A3>>8);
+	adv7511_wr(sd, 0x1d, A3);
+	adv7511_wr_and_or(sd, 0x1e, 0xe0, A4>>8);
+	adv7511_wr(sd, 0x1f, A4);
+
+	/* B */
+	adv7511_wr_and_or(sd, 0x20, 0xe0, B1>>8);
+	adv7511_wr(sd, 0x21, B1);
+	adv7511_wr_and_or(sd, 0x22, 0xe0, B2>>8);
+	adv7511_wr(sd, 0x23, B2);
+	adv7511_wr_and_or(sd, 0x24, 0xe0, B3>>8);
+	adv7511_wr(sd, 0x25, B3);
+	adv7511_wr_and_or(sd, 0x26, 0xe0, B4>>8);
+	adv7511_wr(sd, 0x27, B4);
+
+	/* C */
+	adv7511_wr_and_or(sd, 0x28, 0xe0, C1>>8);
+	adv7511_wr(sd, 0x29, C1);
+	adv7511_wr_and_or(sd, 0x2A, 0xe0, C2>>8);
+	adv7511_wr(sd, 0x2B, C2);
+	adv7511_wr_and_or(sd, 0x2C, 0xe0, C3>>8);
+	adv7511_wr(sd, 0x2D, C3);
+	adv7511_wr_and_or(sd, 0x2E, 0xe0, C4>>8);
+	adv7511_wr(sd, 0x2F, C4);
+}
+
+static void adv7511_csc_rgb_full2limit(struct v4l2_subdev *sd, bool enable)
+{
+	if (enable) {
+		u8 csc_mode = 0;
+		adv7511_csc_conversion_mode(sd, csc_mode);
+		adv7511_csc_coeff(sd,
+				  4096-564, 0, 0, 256,
+				  0, 4096-564, 0, 256,
+				  0, 0, 4096-564, 256);
+		/* enable CSC */
+		adv7511_wr_and_or(sd, 0x18, 0x7f, 0x80);
+		/* AVI infoframe: Limited range RGB (16-235) */
+		adv7511_wr_and_or(sd, 0x57, 0xf3, 0x04);
+	} else {
+		/* disable CSC */
+		adv7511_wr_and_or(sd, 0x18, 0x7f, 0x0);
+		/* AVI infoframe: Full range RGB (0-255) */
+		adv7511_wr_and_or(sd, 0x57, 0xf3, 0x08);
+	}
+}
+
+static void adv7511_set_rgb_quantization_mode(struct v4l2_subdev *sd, struct v4l2_ctrl *ctrl)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	/* Only makes sense for RGB formats */
+	if (state->fmt_code != MEDIA_BUS_FMT_RGB888_1X24) {
+		/* so just keep quantization */
+		adv7511_csc_rgb_full2limit(sd, false);
+		return;
+	}
+
+	switch (ctrl->val) {
+	case V4L2_DV_RGB_RANGE_AUTO:
+		/* automatic */
+		if (state->dv_timings.bt.flags & V4L2_DV_FL_IS_CE_VIDEO) {
+			/* CE format, RGB limited range (16-235) */
+			adv7511_csc_rgb_full2limit(sd, true);
+		} else {
+			/* not CE format, RGB full range (0-255) */
+			adv7511_csc_rgb_full2limit(sd, false);
+		}
+		break;
+	case V4L2_DV_RGB_RANGE_LIMITED:
+		/* RGB limited range (16-235) */
+		adv7511_csc_rgb_full2limit(sd, true);
+		break;
+	case V4L2_DV_RGB_RANGE_FULL:
+		/* RGB full range (0-255) */
+		adv7511_csc_rgb_full2limit(sd, false);
+		break;
+	}
+}
+
+/* ------------------------------ CTRL OPS ------------------------------ */
+
+static int adv7511_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct v4l2_subdev *sd = to_sd(ctrl);
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	v4l2_dbg(1, debug, sd, "%s: ctrl id: %d, ctrl->val %d\n", __func__, ctrl->id, ctrl->val);
+
+	if (state->hdmi_mode_ctrl == ctrl) {
+		/* Set HDMI or DVI-D */
+		adv7511_wr_and_or(sd, 0xaf, 0xfd, ctrl->val == V4L2_DV_TX_MODE_HDMI ? 0x02 : 0x00);
+		return 0;
+	}
+	if (state->rgb_quantization_range_ctrl == ctrl) {
+		adv7511_set_rgb_quantization_mode(sd, ctrl);
+		return 0;
+	}
+	if (state->content_type_ctrl == ctrl) {
+		u8 itc, cn;
+
+		state->content_type = ctrl->val;
+		itc = state->content_type != V4L2_DV_IT_CONTENT_TYPE_NO_ITC;
+		cn = itc ? state->content_type : V4L2_DV_IT_CONTENT_TYPE_GRAPHICS;
+		adv7511_wr_and_or(sd, 0x57, 0x7f, itc << 7);
+		adv7511_wr_and_or(sd, 0x59, 0xcf, cn << 4);
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static const struct v4l2_ctrl_ops adv7511_ctrl_ops = {
+	.s_ctrl = adv7511_s_ctrl,
+};
+
+/* ---------------------------- CORE OPS ------------------------------------------- */
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static void adv7511_inv_register(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	v4l2_info(sd, "0x000-0x0ff: Main Map\n");
+	if (state->i2c_cec)
+		v4l2_info(sd, "0x100-0x1ff: CEC Map\n");
+}
+
+static int adv7511_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	reg->size = 1;
+	switch (reg->reg >> 8) {
+	case 0:
+		reg->val = adv7511_rd(sd, reg->reg & 0xff);
+		break;
+	case 1:
+		if (state->i2c_cec) {
+			reg->val = adv7511_cec_read(sd, reg->reg & 0xff);
+			break;
+		}
+		/* fall through */
+	default:
+		v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
+		adv7511_inv_register(sd);
+		break;
+	}
+	return 0;
+}
+
+static int adv7511_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	switch (reg->reg >> 8) {
+	case 0:
+		adv7511_wr(sd, reg->reg & 0xff, reg->val & 0xff);
+		break;
+	case 1:
+		if (state->i2c_cec) {
+			adv7511_cec_write(sd, reg->reg & 0xff, reg->val & 0xff);
+			break;
+		}
+		/* fall through */
+	default:
+		v4l2_info(sd, "Register %03llx not supported\n", reg->reg);
+		adv7511_inv_register(sd);
+		break;
+	}
+	return 0;
+}
+#endif
+
+struct adv7511_cfg_read_infoframe {
+	const char *desc;
+	u8 present_reg;
+	u8 present_mask;
+	u8 header[3];
+	u16 payload_addr;
+};
+
+static u8 hdmi_infoframe_checksum(u8 *ptr, size_t size)
+{
+	u8 csum = 0;
+	size_t i;
+
+	/* compute checksum */
+	for (i = 0; i < size; i++)
+		csum += ptr[i];
+
+	return 256 - csum;
+}
+
+static void log_infoframe(struct v4l2_subdev *sd, const struct adv7511_cfg_read_infoframe *cri)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct device *dev = &client->dev;
+	union hdmi_infoframe frame;
+	u8 buffer[32];
+	u8 len;
+	int i;
+
+	if (!(adv7511_rd(sd, cri->present_reg) & cri->present_mask)) {
+		v4l2_info(sd, "%s infoframe not transmitted\n", cri->desc);
+		return;
+	}
+
+	memcpy(buffer, cri->header, sizeof(cri->header));
+
+	len = buffer[2];
+
+	if (len + 4 > sizeof(buffer)) {
+		v4l2_err(sd, "%s: invalid %s infoframe length %d\n", __func__, cri->desc, len);
+		return;
+	}
+
+	if (cri->payload_addr >= 0x100) {
+		for (i = 0; i < len; i++)
+			buffer[i + 4] = adv7511_pktmem_rd(sd, cri->payload_addr + i - 0x100);
+	} else {
+		for (i = 0; i < len; i++)
+			buffer[i + 4] = adv7511_rd(sd, cri->payload_addr + i);
+	}
+	buffer[3] = 0;
+	buffer[3] = hdmi_infoframe_checksum(buffer, len + 4);
+
+	if (hdmi_infoframe_unpack(&frame, buffer, sizeof(buffer)) < 0) {
+		v4l2_err(sd, "%s: unpack of %s infoframe failed\n", __func__, cri->desc);
+		return;
+	}
+
+	hdmi_infoframe_log(KERN_INFO, dev, &frame);
+}
+
+static void adv7511_log_infoframes(struct v4l2_subdev *sd)
+{
+	static const struct adv7511_cfg_read_infoframe cri[] = {
+		{ "AVI", 0x44, 0x10, { 0x82, 2, 13 }, 0x55 },
+		{ "Audio", 0x44, 0x08, { 0x84, 1, 10 }, 0x73 },
+		{ "SDP", 0x40, 0x40, { 0x83, 1, 25 }, 0x103 },
+	};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(cri); i++)
+		log_infoframe(sd, &cri[i]);
+}
+
+static int adv7511_log_status(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	struct adv7511_state_edid *edid = &state->edid;
+	int i;
+
+	static const char * const states[] = {
+		"in reset",
+		"reading EDID",
+		"idle",
+		"initializing HDCP",
+		"HDCP enabled",
+		"initializing HDCP repeater",
+		"6", "7", "8", "9", "A", "B", "C", "D", "E", "F"
+	};
+	static const char * const errors[] = {
+		"no error",
+		"bad receiver BKSV",
+		"Ri mismatch",
+		"Pj mismatch",
+		"i2c error",
+		"timed out",
+		"max repeater cascade exceeded",
+		"hash check failed",
+		"too many devices",
+		"9", "A", "B", "C", "D", "E", "F"
+	};
+
+	v4l2_info(sd, "power %s\n", state->power_on ? "on" : "off");
+	v4l2_info(sd, "%s hotplug, %s Rx Sense, %s EDID (%d block(s))\n",
+		  (adv7511_rd(sd, 0x42) & MASK_ADV7511_HPD_DETECT) ? "detected" : "no",
+		  (adv7511_rd(sd, 0x42) & MASK_ADV7511_MSEN_DETECT) ? "detected" : "no",
+		  edid->segments ? "found" : "no",
+		  edid->blocks);
+	v4l2_info(sd, "%s output %s\n",
+		  (adv7511_rd(sd, 0xaf) & 0x02) ?
+		  "HDMI" : "DVI-D",
+		  (adv7511_rd(sd, 0xa1) & 0x3c) ?
+		  "disabled" : "enabled");
+	v4l2_info(sd, "state: %s, error: %s, detect count: %u, msk/irq: %02x/%02x\n",
+			  states[adv7511_rd(sd, 0xc8) & 0xf],
+			  errors[adv7511_rd(sd, 0xc8) >> 4], state->edid_detect_counter,
+			  adv7511_rd(sd, 0x94), adv7511_rd(sd, 0x96));
+	v4l2_info(sd, "RGB quantization: %s range\n", adv7511_rd(sd, 0x18) & 0x80 ? "limited" : "full");
+	if (adv7511_rd(sd, 0xaf) & 0x02) {
+		/* HDMI only */
+		u8 manual_cts = adv7511_rd(sd, 0x0a) & 0x80;
+		u32 N = (adv7511_rd(sd, 0x01) & 0xf) << 16 |
+			adv7511_rd(sd, 0x02) << 8 |
+			adv7511_rd(sd, 0x03);
+		u8 vic_detect = adv7511_rd(sd, 0x3e) >> 2;
+		u8 vic_sent = adv7511_rd(sd, 0x3d) & 0x3f;
+		u32 CTS;
+
+		if (manual_cts)
+			CTS = (adv7511_rd(sd, 0x07) & 0xf) << 16 |
+			      adv7511_rd(sd, 0x08) << 8 |
+			      adv7511_rd(sd, 0x09);
+		else
+			CTS = (adv7511_rd(sd, 0x04) & 0xf) << 16 |
+			      adv7511_rd(sd, 0x05) << 8 |
+			      adv7511_rd(sd, 0x06);
+		v4l2_info(sd, "CTS %s mode: N %d, CTS %d\n",
+			  manual_cts ? "manual" : "automatic", N, CTS);
+		v4l2_info(sd, "VIC: detected %d, sent %d\n",
+			  vic_detect, vic_sent);
+		adv7511_log_infoframes(sd);
+	}
+	if (state->dv_timings.type == V4L2_DV_BT_656_1120)
+		v4l2_print_dv_timings(sd->name, "timings: ",
+				&state->dv_timings, false);
+	else
+		v4l2_info(sd, "no timings set\n");
+	v4l2_info(sd, "i2c edid addr: 0x%x\n", state->i2c_edid_addr);
+
+	if (state->i2c_cec == NULL)
+		return 0;
+
+	v4l2_info(sd, "i2c cec addr: 0x%x\n", state->i2c_cec_addr);
+
+	v4l2_info(sd, "CEC: %s\n", state->cec_enabled_adap ?
+			"enabled" : "disabled");
+	if (state->cec_enabled_adap) {
+		for (i = 0; i < ADV7511_MAX_ADDRS; i++) {
+			bool is_valid = state->cec_valid_addrs & (1 << i);
+
+			if (is_valid)
+				v4l2_info(sd, "CEC Logical Address: 0x%x\n",
+					  state->cec_addr[i]);
+		}
+	}
+	v4l2_info(sd, "i2c pktmem addr: 0x%x\n", state->i2c_pktmem_addr);
+	return 0;
+}
+
+/* Power up/down adv7511 */
+static int adv7511_s_power(struct v4l2_subdev *sd, int on)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	const int retries = 20;
+	int i;
+
+	v4l2_dbg(1, debug, sd, "%s: power %s\n", __func__, on ? "on" : "off");
+
+	state->power_on = on;
+
+	if (!on) {
+		/* Power down */
+		adv7511_wr_and_or(sd, 0x41, 0xbf, 0x40);
+		return true;
+	}
+
+	/* Power up */
+	/* The adv7511 does not always come up immediately.
+	   Retry multiple times. */
+	for (i = 0; i < retries; i++) {
+		adv7511_wr_and_or(sd, 0x41, 0xbf, 0x0);
+		if ((adv7511_rd(sd, 0x41) & 0x40) == 0)
+			break;
+		adv7511_wr_and_or(sd, 0x41, 0xbf, 0x40);
+		msleep(10);
+	}
+	if (i == retries) {
+		v4l2_dbg(1, debug, sd, "%s: failed to powerup the adv7511!\n", __func__);
+		adv7511_s_power(sd, 0);
+		return false;
+	}
+	if (i > 1)
+		v4l2_dbg(1, debug, sd, "%s: needed %d retries to powerup the adv7511\n", __func__, i);
+
+	/* Reserved registers that must be set */
+	adv7511_wr(sd, 0x98, 0x03);
+	adv7511_wr_and_or(sd, 0x9a, 0xfe, 0x70);
+	adv7511_wr(sd, 0x9c, 0x30);
+	adv7511_wr_and_or(sd, 0x9d, 0xfc, 0x01);
+	adv7511_wr(sd, 0xa2, 0xa4);
+	adv7511_wr(sd, 0xa3, 0xa4);
+	adv7511_wr(sd, 0xe0, 0xd0);
+	adv7511_wr(sd, 0xf9, 0x00);
+
+	adv7511_wr(sd, 0x43, state->i2c_edid_addr);
+	adv7511_wr(sd, 0x45, state->i2c_pktmem_addr);
+
+	/* Set number of attempts to read the EDID */
+	adv7511_wr(sd, 0xc9, 0xf);
+	return true;
+}
+
+#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
+static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable)
+{
+	struct adv7511_state *state = cec_get_drvdata(adap);
+	struct v4l2_subdev *sd = &state->sd;
+
+	if (state->i2c_cec == NULL)
+		return -EIO;
+
+	if (!state->cec_enabled_adap && enable) {
+		/* power up cec section */
+		adv7511_cec_write_and_or(sd, 0x4e, 0xfc, 0x01);
+		/* legacy mode and clear all rx buffers */
+		adv7511_cec_write(sd, 0x4a, 0x00);
+		adv7511_cec_write(sd, 0x4a, 0x07);
+		adv7511_cec_write_and_or(sd, 0x11, 0xfe, 0); /* initially disable tx */
+		/* enabled irqs: */
+		/* tx: ready */
+		/* tx: arbitration lost */
+		/* tx: retry timeout */
+		/* rx: ready 1 */
+		if (state->enabled_irq)
+			adv7511_wr_and_or(sd, 0x95, 0xc0, 0x39);
+	} else if (state->cec_enabled_adap && !enable) {
+		if (state->enabled_irq)
+			adv7511_wr_and_or(sd, 0x95, 0xc0, 0x00);
+		/* disable address mask 1-3 */
+		adv7511_cec_write_and_or(sd, 0x4b, 0x8f, 0x00);
+		/* power down cec section */
+		adv7511_cec_write_and_or(sd, 0x4e, 0xfc, 0x00);
+		state->cec_valid_addrs = 0;
+	}
+	state->cec_enabled_adap = enable;
+	return 0;
+}
+
+static int adv7511_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
+{
+	struct adv7511_state *state = cec_get_drvdata(adap);
+	struct v4l2_subdev *sd = &state->sd;
+	unsigned int i, free_idx = ADV7511_MAX_ADDRS;
+
+	if (!state->cec_enabled_adap)
+		return addr == CEC_LOG_ADDR_INVALID ? 0 : -EIO;
+
+	if (addr == CEC_LOG_ADDR_INVALID) {
+		adv7511_cec_write_and_or(sd, 0x4b, 0x8f, 0);
+		state->cec_valid_addrs = 0;
+		return 0;
+	}
+
+	for (i = 0; i < ADV7511_MAX_ADDRS; i++) {
+		bool is_valid = state->cec_valid_addrs & (1 << i);
+
+		if (free_idx == ADV7511_MAX_ADDRS && !is_valid)
+			free_idx = i;
+		if (is_valid && state->cec_addr[i] == addr)
+			return 0;
+	}
+	if (i == ADV7511_MAX_ADDRS) {
+		i = free_idx;
+		if (i == ADV7511_MAX_ADDRS)
+			return -ENXIO;
+	}
+	state->cec_addr[i] = addr;
+	state->cec_valid_addrs |= 1 << i;
+
+	switch (i) {
+	case 0:
+		/* enable address mask 0 */
+		adv7511_cec_write_and_or(sd, 0x4b, 0xef, 0x10);
+		/* set address for mask 0 */
+		adv7511_cec_write_and_or(sd, 0x4c, 0xf0, addr);
+		break;
+	case 1:
+		/* enable address mask 1 */
+		adv7511_cec_write_and_or(sd, 0x4b, 0xdf, 0x20);
+		/* set address for mask 1 */
+		adv7511_cec_write_and_or(sd, 0x4c, 0x0f, addr << 4);
+		break;
+	case 2:
+		/* enable address mask 2 */
+		adv7511_cec_write_and_or(sd, 0x4b, 0xbf, 0x40);
+		/* set address for mask 1 */
+		adv7511_cec_write_and_or(sd, 0x4d, 0xf0, addr);
+		break;
+	}
+	return 0;
+}
+
+static int adv7511_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
+				     u32 signal_free_time, struct cec_msg *msg)
+{
+	struct adv7511_state *state = cec_get_drvdata(adap);
+	struct v4l2_subdev *sd = &state->sd;
+	u8 len = msg->len;
+	unsigned int i;
+
+	v4l2_dbg(1, debug, sd, "%s: len %d\n", __func__, len);
+
+	if (len > 16) {
+		v4l2_err(sd, "%s: len exceeded 16 (%d)\n", __func__, len);
+		return -EINVAL;
+	}
+
+	/*
+	 * The number of retries is the number of attempts - 1, but retry
+	 * at least once. It's not clear if a value of 0 is allowed, so
+	 * let's do at least one retry.
+	 */
+	adv7511_cec_write_and_or(sd, 0x12, ~0x70, max(1, attempts - 1) << 4);
+
+	/* clear cec tx irq status */
+	adv7511_wr(sd, 0x97, 0x38);
+
+	/* write data */
+	for (i = 0; i < len; i++)
+		adv7511_cec_write(sd, i, msg->msg[i]);
+
+	/* set length (data + header) */
+	adv7511_cec_write(sd, 0x10, len);
+	/* start transmit, enable tx */
+	adv7511_cec_write(sd, 0x11, 0x01);
+	return 0;
+}
+
+static void adv_cec_tx_raw_status(struct v4l2_subdev *sd, u8 tx_raw_status)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	if ((adv7511_cec_read(sd, 0x11) & 0x01) == 0) {
+		v4l2_dbg(1, debug, sd, "%s: tx raw: tx disabled\n", __func__);
+		return;
+	}
+
+	if (tx_raw_status & 0x10) {
+		v4l2_dbg(1, debug, sd,
+			 "%s: tx raw: arbitration lost\n", __func__);
+		cec_transmit_done(state->cec_adap, CEC_TX_STATUS_ARB_LOST,
+				  1, 0, 0, 0);
+		return;
+	}
+	if (tx_raw_status & 0x08) {
+		u8 status;
+		u8 nack_cnt;
+		u8 low_drive_cnt;
+
+		v4l2_dbg(1, debug, sd, "%s: tx raw: retry failed\n", __func__);
+		/*
+		 * We set this status bit since this hardware performs
+		 * retransmissions.
+		 */
+		status = CEC_TX_STATUS_MAX_RETRIES;
+		nack_cnt = adv7511_cec_read(sd, 0x14) & 0xf;
+		if (nack_cnt)
+			status |= CEC_TX_STATUS_NACK;
+		low_drive_cnt = adv7511_cec_read(sd, 0x14) >> 4;
+		if (low_drive_cnt)
+			status |= CEC_TX_STATUS_LOW_DRIVE;
+		cec_transmit_done(state->cec_adap, status,
+				  0, nack_cnt, low_drive_cnt, 0);
+		return;
+	}
+	if (tx_raw_status & 0x20) {
+		v4l2_dbg(1, debug, sd, "%s: tx raw: ready ok\n", __func__);
+		cec_transmit_done(state->cec_adap, CEC_TX_STATUS_OK, 0, 0, 0, 0);
+		return;
+	}
+}
+
+static const struct cec_adap_ops adv7511_cec_adap_ops = {
+	.adap_enable = adv7511_cec_adap_enable,
+	.adap_log_addr = adv7511_cec_adap_log_addr,
+	.adap_transmit = adv7511_cec_adap_transmit,
+};
+#endif
+
+/* Enable interrupts */
+static void adv7511_set_isr(struct v4l2_subdev *sd, bool enable)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	u8 irqs = MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT;
+	u8 irqs_rd;
+	int retries = 100;
+
+	v4l2_dbg(2, debug, sd, "%s: %s\n", __func__, enable ? "enable" : "disable");
+
+	if (state->enabled_irq == enable)
+		return;
+	state->enabled_irq = enable;
+
+	/* The datasheet says that the EDID ready interrupt should be
+	   disabled if there is no hotplug. */
+	if (!enable)
+		irqs = 0;
+	else if (adv7511_have_hotplug(sd))
+		irqs |= MASK_ADV7511_EDID_RDY_INT;
+
+	/*
+	 * This i2c write can fail (approx. 1 in 1000 writes). But it
+	 * is essential that this register is correct, so retry it
+	 * multiple times.
+	 *
+	 * Note that the i2c write does not report an error, but the readback
+	 * clearly shows the wrong value.
+	 */
+	do {
+		adv7511_wr(sd, 0x94, irqs);
+		irqs_rd = adv7511_rd(sd, 0x94);
+	} while (retries-- && irqs_rd != irqs);
+
+	if (irqs_rd != irqs)
+		v4l2_err(sd, "Could not set interrupts: hw failure?\n");
+
+	adv7511_wr_and_or(sd, 0x95, 0xc0,
+			  (state->cec_enabled_adap && enable) ? 0x39 : 0x00);
+}
+
+/* Interrupt handler */
+static int adv7511_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
+{
+	u8 irq_status;
+	u8 cec_irq;
+
+	/* disable interrupts to prevent a race condition */
+	adv7511_set_isr(sd, false);
+	irq_status = adv7511_rd(sd, 0x96);
+	cec_irq = adv7511_rd(sd, 0x97);
+	/* clear detected interrupts */
+	adv7511_wr(sd, 0x96, irq_status);
+	adv7511_wr(sd, 0x97, cec_irq);
+
+	v4l2_dbg(1, debug, sd, "%s: irq 0x%x, cec-irq 0x%x\n", __func__,
+		 irq_status, cec_irq);
+
+	if (irq_status & (MASK_ADV7511_HPD_INT | MASK_ADV7511_MSEN_INT))
+		adv7511_check_monitor_present_status(sd);
+	if (irq_status & MASK_ADV7511_EDID_RDY_INT)
+		adv7511_check_edid_status(sd);
+
+#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
+	if (cec_irq & 0x38)
+		adv_cec_tx_raw_status(sd, cec_irq);
+
+	if (cec_irq & 1) {
+		struct adv7511_state *state = get_adv7511_state(sd);
+		struct cec_msg msg;
+
+		msg.len = adv7511_cec_read(sd, 0x25) & 0x1f;
+
+		v4l2_dbg(1, debug, sd, "%s: cec msg len %d\n", __func__,
+			 msg.len);
+
+		if (msg.len > 16)
+			msg.len = 16;
+
+		if (msg.len) {
+			u8 i;
+
+			for (i = 0; i < msg.len; i++)
+				msg.msg[i] = adv7511_cec_read(sd, i + 0x15);
+
+			adv7511_cec_write(sd, 0x4a, 0); /* toggle to re-enable rx 1 */
+			adv7511_cec_write(sd, 0x4a, 1);
+			cec_received_msg(state->cec_adap, &msg);
+		}
+	}
+#endif
+
+	/* enable interrupts */
+	adv7511_set_isr(sd, true);
+
+	if (handled)
+		*handled = true;
+	return 0;
+}
+
+static const struct v4l2_subdev_core_ops adv7511_core_ops = {
+	.log_status = adv7511_log_status,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.g_register = adv7511_g_register,
+	.s_register = adv7511_s_register,
+#endif
+	.s_power = adv7511_s_power,
+	.interrupt_service_routine = adv7511_isr,
+};
+
+/* ------------------------------ VIDEO OPS ------------------------------ */
+
+/* Enable/disable adv7511 output */
+static int adv7511_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	v4l2_dbg(1, debug, sd, "%s: %sable\n", __func__, (enable ? "en" : "dis"));
+	adv7511_wr_and_or(sd, 0xa1, ~0x3c, (enable ? 0 : 0x3c));
+	if (enable) {
+		adv7511_check_monitor_present_status(sd);
+	} else {
+		adv7511_s_power(sd, 0);
+		state->have_monitor = false;
+	}
+	return 0;
+}
+
+static int adv7511_s_dv_timings(struct v4l2_subdev *sd,
+			       struct v4l2_dv_timings *timings)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	struct v4l2_bt_timings *bt = &timings->bt;
+	u32 fps;
+
+	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
+
+	/* quick sanity check */
+	if (!v4l2_valid_dv_timings(timings, &adv7511_timings_cap, NULL, NULL))
+		return -EINVAL;
+
+	/* Fill the optional fields .standards and .flags in struct v4l2_dv_timings
+	   if the format is one of the CEA or DMT timings. */
+	v4l2_find_dv_timings_cap(timings, &adv7511_timings_cap, 0, NULL, NULL);
+
+	/* save timings */
+	state->dv_timings = *timings;
+
+	/* set h/vsync polarities */
+	adv7511_wr_and_or(sd, 0x17, 0x9f,
+		((bt->polarities & V4L2_DV_VSYNC_POS_POL) ? 0 : 0x40) |
+		((bt->polarities & V4L2_DV_HSYNC_POS_POL) ? 0 : 0x20));
+
+	fps = (u32)bt->pixelclock / (V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt));
+	switch (fps) {
+	case 24:
+		adv7511_wr_and_or(sd, 0xfb, 0xf9, 1 << 1);
+		break;
+	case 25:
+		adv7511_wr_and_or(sd, 0xfb, 0xf9, 2 << 1);
+		break;
+	case 30:
+		adv7511_wr_and_or(sd, 0xfb, 0xf9, 3 << 1);
+		break;
+	default:
+		adv7511_wr_and_or(sd, 0xfb, 0xf9, 0);
+		break;
+	}
+
+	/* update quantization range based on new dv_timings */
+	adv7511_set_rgb_quantization_mode(sd, state->rgb_quantization_range_ctrl);
+
+	return 0;
+}
+
+static int adv7511_g_dv_timings(struct v4l2_subdev *sd,
+				struct v4l2_dv_timings *timings)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
+
+	if (!timings)
+		return -EINVAL;
+
+	*timings = state->dv_timings;
+
+	return 0;
+}
+
+static int adv7511_enum_dv_timings(struct v4l2_subdev *sd,
+				   struct v4l2_enum_dv_timings *timings)
+{
+	if (timings->pad != 0)
+		return -EINVAL;
+
+	return v4l2_enum_dv_timings_cap(timings, &adv7511_timings_cap, NULL, NULL);
+}
+
+static int adv7511_dv_timings_cap(struct v4l2_subdev *sd,
+				  struct v4l2_dv_timings_cap *cap)
+{
+	if (cap->pad != 0)
+		return -EINVAL;
+
+	*cap = adv7511_timings_cap;
+	return 0;
+}
+
+static const struct v4l2_subdev_video_ops adv7511_video_ops = {
+	.s_stream = adv7511_s_stream,
+	.s_dv_timings = adv7511_s_dv_timings,
+	.g_dv_timings = adv7511_g_dv_timings,
+};
+
+/* ------------------------------ AUDIO OPS ------------------------------ */
+static int adv7511_s_audio_stream(struct v4l2_subdev *sd, int enable)
+{
+	v4l2_dbg(1, debug, sd, "%s: %sable\n", __func__, (enable ? "en" : "dis"));
+
+	if (enable)
+		adv7511_wr_and_or(sd, 0x4b, 0x3f, 0x80);
+	else
+		adv7511_wr_and_or(sd, 0x4b, 0x3f, 0x40);
+
+	return 0;
+}
+
+static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
+{
+	u32 N;
+
+	switch (freq) {
+	case 32000:  N = 4096;  break;
+	case 44100:  N = 6272;  break;
+	case 48000:  N = 6144;  break;
+	case 88200:  N = 12544; break;
+	case 96000:  N = 12288; break;
+	case 176400: N = 25088; break;
+	case 192000: N = 24576; break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Set N (used with CTS to regenerate the audio clock) */
+	adv7511_wr(sd, 0x01, (N >> 16) & 0xf);
+	adv7511_wr(sd, 0x02, (N >> 8) & 0xff);
+	adv7511_wr(sd, 0x03, N & 0xff);
+
+	return 0;
+}
+
+static int adv7511_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq)
+{
+	u32 i2s_sf;
+
+	switch (freq) {
+	case 32000:  i2s_sf = 0x30; break;
+	case 44100:  i2s_sf = 0x00; break;
+	case 48000:  i2s_sf = 0x20; break;
+	case 88200:  i2s_sf = 0x80; break;
+	case 96000:  i2s_sf = 0xa0; break;
+	case 176400: i2s_sf = 0xc0; break;
+	case 192000: i2s_sf = 0xe0; break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Set sampling frequency for I2S audio to 48 kHz */
+	adv7511_wr_and_or(sd, 0x15, 0xf, i2s_sf);
+
+	return 0;
+}
+
+static int adv7511_s_routing(struct v4l2_subdev *sd, u32 input, u32 output, u32 config)
+{
+	/* Only 2 channels in use for application */
+	adv7511_wr_and_or(sd, 0x73, 0xf8, 0x1);
+	/* Speaker mapping */
+	adv7511_wr(sd, 0x76, 0x00);
+
+	/* 16 bit audio word length */
+	adv7511_wr_and_or(sd, 0x14, 0xf0, 0x02);
+
+	return 0;
+}
+
+static const struct v4l2_subdev_audio_ops adv7511_audio_ops = {
+	.s_stream = adv7511_s_audio_stream,
+	.s_clock_freq = adv7511_s_clock_freq,
+	.s_i2s_clock_freq = adv7511_s_i2s_clock_freq,
+	.s_routing = adv7511_s_routing,
+};
+
+/* ---------------------------- PAD OPS ------------------------------------- */
+
+static int adv7511_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	memset(edid->reserved, 0, sizeof(edid->reserved));
+
+	if (edid->pad != 0)
+		return -EINVAL;
+
+	if (edid->start_block == 0 && edid->blocks == 0) {
+		edid->blocks = state->edid.segments * 2;
+		return 0;
+	}
+
+	if (state->edid.segments == 0)
+		return -ENODATA;
+
+	if (edid->start_block >= state->edid.segments * 2)
+		return -EINVAL;
+
+	if (edid->start_block + edid->blocks > state->edid.segments * 2)
+		edid->blocks = state->edid.segments * 2 - edid->start_block;
+
+	memcpy(edid->edid, &state->edid.data[edid->start_block * 128],
+			128 * edid->blocks);
+
+	return 0;
+}
+
+static int adv7511_enum_mbus_code(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_pad_config *cfg,
+				  struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (code->pad != 0)
+		return -EINVAL;
+
+	switch (code->index) {
+	case 0:
+		code->code = MEDIA_BUS_FMT_RGB888_1X24;
+		break;
+	case 1:
+		code->code = MEDIA_BUS_FMT_YUYV8_1X16;
+		break;
+	case 2:
+		code->code = MEDIA_BUS_FMT_UYVY8_1X16;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void adv7511_fill_format(struct adv7511_state *state,
+				struct v4l2_mbus_framefmt *format)
+{
+	format->width = state->dv_timings.bt.width;
+	format->height = state->dv_timings.bt.height;
+	format->field = V4L2_FIELD_NONE;
+}
+
+static int adv7511_get_fmt(struct v4l2_subdev *sd,
+			   struct v4l2_subdev_pad_config *cfg,
+			   struct v4l2_subdev_format *format)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	if (format->pad != 0)
+		return -EINVAL;
+
+	memset(&format->format, 0, sizeof(format->format));
+	adv7511_fill_format(state, &format->format);
+
+	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
+		struct v4l2_mbus_framefmt *fmt;
+
+		fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
+		format->format.code = fmt->code;
+		format->format.colorspace = fmt->colorspace;
+		format->format.ycbcr_enc = fmt->ycbcr_enc;
+		format->format.quantization = fmt->quantization;
+		format->format.xfer_func = fmt->xfer_func;
+	} else {
+		format->format.code = state->fmt_code;
+		format->format.colorspace = state->colorspace;
+		format->format.ycbcr_enc = state->ycbcr_enc;
+		format->format.quantization = state->quantization;
+		format->format.xfer_func = state->xfer_func;
+	}
+
+	return 0;
+}
+
+static int adv7511_set_fmt(struct v4l2_subdev *sd,
+			   struct v4l2_subdev_pad_config *cfg,
+			   struct v4l2_subdev_format *format)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	/*
+	 * Bitfield namings come the CEA-861-F standard, table 8 "Auxiliary
+	 * Video Information (AVI) InfoFrame Format"
+	 *
+	 * c = Colorimetry
+	 * ec = Extended Colorimetry
+	 * y = RGB or YCbCr
+	 * q = RGB Quantization Range
+	 * yq = YCC Quantization Range
+	 */
+	u8 c = HDMI_COLORIMETRY_NONE;
+	u8 ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+	u8 y = HDMI_COLORSPACE_RGB;
+	u8 q = HDMI_QUANTIZATION_RANGE_DEFAULT;
+	u8 yq = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+	u8 itc = state->content_type != V4L2_DV_IT_CONTENT_TYPE_NO_ITC;
+	u8 cn = itc ? state->content_type : V4L2_DV_IT_CONTENT_TYPE_GRAPHICS;
+
+	if (format->pad != 0)
+		return -EINVAL;
+	switch (format->format.code) {
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+	case MEDIA_BUS_FMT_YUYV8_1X16:
+	case MEDIA_BUS_FMT_RGB888_1X24:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	adv7511_fill_format(state, &format->format);
+	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
+		struct v4l2_mbus_framefmt *fmt;
+
+		fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
+		fmt->code = format->format.code;
+		fmt->colorspace = format->format.colorspace;
+		fmt->ycbcr_enc = format->format.ycbcr_enc;
+		fmt->quantization = format->format.quantization;
+		fmt->xfer_func = format->format.xfer_func;
+		return 0;
+	}
+
+	switch (format->format.code) {
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+		adv7511_wr_and_or(sd, 0x15, 0xf0, 0x01);
+		adv7511_wr_and_or(sd, 0x16, 0x03, 0xb8);
+		y = HDMI_COLORSPACE_YUV422;
+		break;
+	case MEDIA_BUS_FMT_YUYV8_1X16:
+		adv7511_wr_and_or(sd, 0x15, 0xf0, 0x01);
+		adv7511_wr_and_or(sd, 0x16, 0x03, 0xbc);
+		y = HDMI_COLORSPACE_YUV422;
+		break;
+	case MEDIA_BUS_FMT_RGB888_1X24:
+	default:
+		adv7511_wr_and_or(sd, 0x15, 0xf0, 0x00);
+		adv7511_wr_and_or(sd, 0x16, 0x03, 0x00);
+		break;
+	}
+	state->fmt_code = format->format.code;
+	state->colorspace = format->format.colorspace;
+	state->ycbcr_enc = format->format.ycbcr_enc;
+	state->quantization = format->format.quantization;
+	state->xfer_func = format->format.xfer_func;
+
+	switch (format->format.colorspace) {
+	case V4L2_COLORSPACE_OPRGB:
+		c = HDMI_COLORIMETRY_EXTENDED;
+		ec = y ? HDMI_EXTENDED_COLORIMETRY_OPYCC_601 :
+			 HDMI_EXTENDED_COLORIMETRY_OPRGB;
+		break;
+	case V4L2_COLORSPACE_SMPTE170M:
+		c = y ? HDMI_COLORIMETRY_ITU_601 : HDMI_COLORIMETRY_NONE;
+		if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_XV601) {
+			c = HDMI_COLORIMETRY_EXTENDED;
+			ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+		}
+		break;
+	case V4L2_COLORSPACE_REC709:
+		c = y ? HDMI_COLORIMETRY_ITU_709 : HDMI_COLORIMETRY_NONE;
+		if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_XV709) {
+			c = HDMI_COLORIMETRY_EXTENDED;
+			ec = HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
+		}
+		break;
+	case V4L2_COLORSPACE_SRGB:
+		c = y ? HDMI_COLORIMETRY_EXTENDED : HDMI_COLORIMETRY_NONE;
+		ec = y ? HDMI_EXTENDED_COLORIMETRY_S_YCC_601 :
+			 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+		break;
+	case V4L2_COLORSPACE_BT2020:
+		c = HDMI_COLORIMETRY_EXTENDED;
+		if (y && format->format.ycbcr_enc == V4L2_YCBCR_ENC_BT2020_CONST_LUM)
+			ec = 5; /* Not yet available in hdmi.h */
+		else
+			ec = 6; /* Not yet available in hdmi.h */
+		break;
+	default:
+		break;
+	}
+
+	/*
+	 * CEA-861-F says that for RGB formats the YCC range must match the
+	 * RGB range, although sources should ignore the YCC range.
+	 *
+	 * The RGB quantization range shouldn't be non-zero if the EDID doesn't
+	 * have the Q bit set in the Video Capabilities Data Block, however this
+	 * isn't checked at the moment. The assumption is that the application
+	 * knows the EDID and can detect this.
+	 *
+	 * The same is true for the YCC quantization range: non-standard YCC
+	 * quantization ranges should only be sent if the EDID has the YQ bit
+	 * set in the Video Capabilities Data Block.
+	 */
+	switch (format->format.quantization) {
+	case V4L2_QUANTIZATION_FULL_RANGE:
+		q = y ? HDMI_QUANTIZATION_RANGE_DEFAULT :
+			HDMI_QUANTIZATION_RANGE_FULL;
+		yq = q ? q - 1 : HDMI_YCC_QUANTIZATION_RANGE_FULL;
+		break;
+	case V4L2_QUANTIZATION_LIM_RANGE:
+		q = y ? HDMI_QUANTIZATION_RANGE_DEFAULT :
+			HDMI_QUANTIZATION_RANGE_LIMITED;
+		yq = q ? q - 1 : HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+		break;
+	}
+
+	adv7511_wr_and_or(sd, 0x4a, 0xbf, 0);
+	adv7511_wr_and_or(sd, 0x55, 0x9f, y << 5);
+	adv7511_wr_and_or(sd, 0x56, 0x3f, c << 6);
+	adv7511_wr_and_or(sd, 0x57, 0x83, (ec << 4) | (q << 2) | (itc << 7));
+	adv7511_wr_and_or(sd, 0x59, 0x0f, (yq << 6) | (cn << 4));
+	adv7511_wr_and_or(sd, 0x4a, 0xff, 1);
+	adv7511_set_rgb_quantization_mode(sd, state->rgb_quantization_range_ctrl);
+
+	return 0;
+}
+
+static const struct v4l2_subdev_pad_ops adv7511_pad_ops = {
+	.get_edid = adv7511_get_edid,
+	.enum_mbus_code = adv7511_enum_mbus_code,
+	.get_fmt = adv7511_get_fmt,
+	.set_fmt = adv7511_set_fmt,
+	.enum_dv_timings = adv7511_enum_dv_timings,
+	.dv_timings_cap = adv7511_dv_timings_cap,
+};
+
+/* --------------------- SUBDEV OPS --------------------------------------- */
+
+static const struct v4l2_subdev_ops adv7511_ops = {
+	.core  = &adv7511_core_ops,
+	.pad  = &adv7511_pad_ops,
+	.video = &adv7511_video_ops,
+	.audio = &adv7511_audio_ops,
+};
+
+/* ----------------------------------------------------------------------- */
+static void adv7511_dbg_dump_edid(int lvl, int debug, struct v4l2_subdev *sd, int segment, u8 *buf)
+{
+	if (debug >= lvl) {
+		int i, j;
+		v4l2_dbg(lvl, debug, sd, "edid segment %d\n", segment);
+		for (i = 0; i < 256; i += 16) {
+			u8 b[128];
+			u8 *bp = b;
+			if (i == 128)
+				v4l2_dbg(lvl, debug, sd, "\n");
+			for (j = i; j < i + 16; j++) {
+				sprintf(bp, "0x%02x, ", buf[j]);
+				bp += 6;
+			}
+			bp[0] = '\0';
+			v4l2_dbg(lvl, debug, sd, "%s\n", b);
+		}
+	}
+}
+
+static void adv7511_notify_no_edid(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	struct adv7511_edid_detect ed;
+
+	/* We failed to read the EDID, so send an event for this. */
+	ed.present = false;
+	ed.segment = adv7511_rd(sd, 0xc4);
+	ed.phys_addr = CEC_PHYS_ADDR_INVALID;
+	cec_s_phys_addr(state->cec_adap, ed.phys_addr, false);
+	v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
+	v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x0);
+}
+
+static void adv7511_edid_handler(struct work_struct *work)
+{
+	struct delayed_work *dwork = to_delayed_work(work);
+	struct adv7511_state *state = container_of(dwork, struct adv7511_state, edid_handler);
+	struct v4l2_subdev *sd = &state->sd;
+
+	v4l2_dbg(1, debug, sd, "%s:\n", __func__);
+
+	if (adv7511_check_edid_status(sd)) {
+		/* Return if we received the EDID. */
+		return;
+	}
+
+	if (adv7511_have_hotplug(sd)) {
+		/* We must retry reading the EDID several times, it is possible
+		 * that initially the EDID couldn't be read due to i2c errors
+		 * (DVI connectors are particularly prone to this problem). */
+		if (state->edid.read_retries) {
+			state->edid.read_retries--;
+			v4l2_dbg(1, debug, sd, "%s: edid read failed\n", __func__);
+			state->have_monitor = false;
+			adv7511_s_power(sd, false);
+			adv7511_s_power(sd, true);
+			queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
+			return;
+		}
+	}
+
+	/* We failed to read the EDID, so send an event for this. */
+	adv7511_notify_no_edid(sd);
+	v4l2_dbg(1, debug, sd, "%s: no edid found\n", __func__);
+}
+
+static void adv7511_audio_setup(struct v4l2_subdev *sd)
+{
+	v4l2_dbg(1, debug, sd, "%s\n", __func__);
+
+	adv7511_s_i2s_clock_freq(sd, 48000);
+	adv7511_s_clock_freq(sd, 48000);
+	adv7511_s_routing(sd, 0, 0, 0);
+}
+
+/* Configure hdmi transmitter. */
+static void adv7511_setup(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	v4l2_dbg(1, debug, sd, "%s\n", __func__);
+
+	/* Input format: RGB 4:4:4 */
+	adv7511_wr_and_or(sd, 0x15, 0xf0, 0x0);
+	/* Output format: RGB 4:4:4 */
+	adv7511_wr_and_or(sd, 0x16, 0x7f, 0x0);
+	/* 1st order interpolation 4:2:2 -> 4:4:4 up conversion, Aspect ratio: 16:9 */
+	adv7511_wr_and_or(sd, 0x17, 0xf9, 0x06);
+	/* Disable pixel repetition */
+	adv7511_wr_and_or(sd, 0x3b, 0x9f, 0x0);
+	/* Disable CSC */
+	adv7511_wr_and_or(sd, 0x18, 0x7f, 0x0);
+	/* Output format: RGB 4:4:4, Active Format Information is valid,
+	 * underscanned */
+	adv7511_wr_and_or(sd, 0x55, 0x9c, 0x12);
+	/* AVI Info frame packet enable, Audio Info frame disable */
+	adv7511_wr_and_or(sd, 0x44, 0xe7, 0x10);
+	/* Colorimetry, Active format aspect ratio: same as picure. */
+	adv7511_wr(sd, 0x56, 0xa8);
+	/* No encryption */
+	adv7511_wr_and_or(sd, 0xaf, 0xed, 0x0);
+
+	/* Positive clk edge capture for input video clock */
+	adv7511_wr_and_or(sd, 0xba, 0x1f, 0x60);
+
+	adv7511_audio_setup(sd);
+
+	v4l2_ctrl_handler_setup(&state->hdl);
+}
+
+static void adv7511_notify_monitor_detect(struct v4l2_subdev *sd)
+{
+	struct adv7511_monitor_detect mdt;
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	mdt.present = state->have_monitor;
+	v4l2_subdev_notify(sd, ADV7511_MONITOR_DETECT, (void *)&mdt);
+}
+
+static void adv7511_check_monitor_present_status(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	/* read hotplug and rx-sense state */
+	u8 status = adv7511_rd(sd, 0x42);
+
+	v4l2_dbg(1, debug, sd, "%s: status: 0x%x%s%s\n",
+			 __func__,
+			 status,
+			 status & MASK_ADV7511_HPD_DETECT ? ", hotplug" : "",
+			 status & MASK_ADV7511_MSEN_DETECT ? ", rx-sense" : "");
+
+	/* update read only ctrls */
+	v4l2_ctrl_s_ctrl(state->hotplug_ctrl, adv7511_have_hotplug(sd) ? 0x1 : 0x0);
+	v4l2_ctrl_s_ctrl(state->rx_sense_ctrl, adv7511_have_rx_sense(sd) ? 0x1 : 0x0);
+
+	if ((status & MASK_ADV7511_HPD_DETECT) && ((status & MASK_ADV7511_MSEN_DETECT) || state->edid.segments)) {
+		v4l2_dbg(1, debug, sd, "%s: hotplug and (rx-sense or edid)\n", __func__);
+		if (!state->have_monitor) {
+			v4l2_dbg(1, debug, sd, "%s: monitor detected\n", __func__);
+			state->have_monitor = true;
+			adv7511_set_isr(sd, true);
+			if (!adv7511_s_power(sd, true)) {
+				v4l2_dbg(1, debug, sd, "%s: monitor detected, powerup failed\n", __func__);
+				return;
+			}
+			adv7511_setup(sd);
+			adv7511_notify_monitor_detect(sd);
+			state->edid.read_retries = EDID_MAX_RETRIES;
+			queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
+		}
+	} else if (status & MASK_ADV7511_HPD_DETECT) {
+		v4l2_dbg(1, debug, sd, "%s: hotplug detected\n", __func__);
+		state->edid.read_retries = EDID_MAX_RETRIES;
+		queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
+	} else if (!(status & MASK_ADV7511_HPD_DETECT)) {
+		v4l2_dbg(1, debug, sd, "%s: hotplug not detected\n", __func__);
+		if (state->have_monitor) {
+			v4l2_dbg(1, debug, sd, "%s: monitor not detected\n", __func__);
+			state->have_monitor = false;
+			adv7511_notify_monitor_detect(sd);
+		}
+		adv7511_s_power(sd, false);
+		memset(&state->edid, 0, sizeof(struct adv7511_state_edid));
+		adv7511_notify_no_edid(sd);
+	}
+}
+
+static bool edid_block_verify_crc(u8 *edid_block)
+{
+	u8 sum = 0;
+	int i;
+
+	for (i = 0; i < 128; i++)
+		sum += edid_block[i];
+	return sum == 0;
+}
+
+static bool edid_verify_crc(struct v4l2_subdev *sd, u32 segment)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	u32 blocks = state->edid.blocks;
+	u8 *data = state->edid.data;
+
+	if (!edid_block_verify_crc(&data[segment * 256]))
+		return false;
+	if ((segment + 1) * 2 <= blocks)
+		return edid_block_verify_crc(&data[segment * 256 + 128]);
+	return true;
+}
+
+static bool edid_verify_header(struct v4l2_subdev *sd, u32 segment)
+{
+	static const u8 hdmi_header[] = {
+		0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
+	};
+	struct adv7511_state *state = get_adv7511_state(sd);
+	u8 *data = state->edid.data;
+
+	if (segment != 0)
+		return true;
+	return !memcmp(data, hdmi_header, sizeof(hdmi_header));
+}
+
+static bool adv7511_check_edid_status(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	u8 edidRdy = adv7511_rd(sd, 0xc5);
+
+	v4l2_dbg(1, debug, sd, "%s: edid ready (retries: %d)\n",
+			 __func__, EDID_MAX_RETRIES - state->edid.read_retries);
+
+	if (state->edid.complete)
+		return true;
+
+	if (edidRdy & MASK_ADV7511_EDID_RDY) {
+		int segment = adv7511_rd(sd, 0xc4);
+		struct adv7511_edid_detect ed;
+
+		if (segment >= EDID_MAX_SEGM) {
+			v4l2_err(sd, "edid segment number too big\n");
+			return false;
+		}
+		v4l2_dbg(1, debug, sd, "%s: got segment %d\n", __func__, segment);
+		adv7511_edid_rd(sd, 256, &state->edid.data[segment * 256]);
+		adv7511_dbg_dump_edid(2, debug, sd, segment, &state->edid.data[segment * 256]);
+		if (segment == 0) {
+			state->edid.blocks = state->edid.data[0x7e] + 1;
+			v4l2_dbg(1, debug, sd, "%s: %d blocks in total\n", __func__, state->edid.blocks);
+		}
+		if (!edid_verify_crc(sd, segment) ||
+		    !edid_verify_header(sd, segment)) {
+			/* edid crc error, force reread of edid segment */
+			v4l2_err(sd, "%s: edid crc or header error\n", __func__);
+			state->have_monitor = false;
+			adv7511_s_power(sd, false);
+			adv7511_s_power(sd, true);
+			return false;
+		}
+		/* one more segment read ok */
+		state->edid.segments = segment + 1;
+		v4l2_ctrl_s_ctrl(state->have_edid0_ctrl, 0x1);
+		if (((state->edid.data[0x7e] >> 1) + 1) > state->edid.segments) {
+			/* Request next EDID segment */
+			v4l2_dbg(1, debug, sd, "%s: request segment %d\n", __func__, state->edid.segments);
+			adv7511_wr(sd, 0xc9, 0xf);
+			adv7511_wr(sd, 0xc4, state->edid.segments);
+			state->edid.read_retries = EDID_MAX_RETRIES;
+			queue_delayed_work(state->work_queue, &state->edid_handler, EDID_DELAY);
+			return false;
+		}
+
+		v4l2_dbg(1, debug, sd, "%s: edid complete with %d segment(s)\n", __func__, state->edid.segments);
+		state->edid.complete = true;
+		ed.phys_addr = cec_get_edid_phys_addr(state->edid.data,
+						      state->edid.segments * 256,
+						      NULL);
+		/* report when we have all segments
+		   but report only for segment 0
+		 */
+		ed.present = true;
+		ed.segment = 0;
+		state->edid_detect_counter++;
+		cec_s_phys_addr(state->cec_adap, ed.phys_addr, false);
+		v4l2_subdev_notify(sd, ADV7511_EDID_DETECT, (void *)&ed);
+		return ed.present;
+	}
+
+	return false;
+}
+
+static int adv7511_registered(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int err;
+
+	err = cec_register_adapter(state->cec_adap, &client->dev);
+	if (err)
+		cec_delete_adapter(state->cec_adap);
+	return err;
+}
+
+static void adv7511_unregistered(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	cec_unregister_adapter(state->cec_adap);
+}
+
+static const struct v4l2_subdev_internal_ops adv7511_int_ops = {
+	.registered = adv7511_registered,
+	.unregistered = adv7511_unregistered,
+};
+
+/* ----------------------------------------------------------------------- */
+/* Setup ADV7511 */
+static void adv7511_init_setup(struct v4l2_subdev *sd)
+{
+	struct adv7511_state *state = get_adv7511_state(sd);
+	struct adv7511_state_edid *edid = &state->edid;
+	u32 cec_clk = state->pdata.cec_clk;
+	u8 ratio;
+
+	v4l2_dbg(1, debug, sd, "%s\n", __func__);
+
+	/* clear all interrupts */
+	adv7511_wr(sd, 0x96, 0xff);
+	adv7511_wr(sd, 0x97, 0xff);
+	/*
+	 * Stop HPD from resetting a lot of registers.
+	 * It might leave the chip in a partly un-initialized state,
+	 * in particular with regards to hotplug bounces.
+	 */
+	adv7511_wr_and_or(sd, 0xd6, 0x3f, 0xc0);
+	memset(edid, 0, sizeof(struct adv7511_state_edid));
+	state->have_monitor = false;
+	adv7511_set_isr(sd, false);
+	adv7511_s_stream(sd, false);
+	adv7511_s_audio_stream(sd, false);
+
+	if (state->i2c_cec == NULL)
+		return;
+
+	v4l2_dbg(1, debug, sd, "%s: cec_clk %d\n", __func__, cec_clk);
+
+	/* cec soft reset */
+	adv7511_cec_write(sd, 0x50, 0x01);
+	adv7511_cec_write(sd, 0x50, 0x00);
+
+	/* legacy mode */
+	adv7511_cec_write(sd, 0x4a, 0x00);
+	adv7511_cec_write(sd, 0x4a, 0x07);
+
+	if (cec_clk % 750000 != 0)
+		v4l2_err(sd, "%s: cec_clk %d, not multiple of 750 Khz\n",
+			 __func__, cec_clk);
+
+	ratio = (cec_clk / 750000) - 1;
+	adv7511_cec_write(sd, 0x4e, ratio << 2);
+}
+
+static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+	struct adv7511_state *state;
+	struct adv7511_platform_data *pdata = client->dev.platform_data;
+	struct v4l2_ctrl_handler *hdl;
+	struct v4l2_subdev *sd;
+	u8 chip_id[2];
+	int err = -EIO;
+
+	/* Check if the adapter supports the needed features */
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -EIO;
+
+	state = devm_kzalloc(&client->dev, sizeof(struct adv7511_state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	/* Platform data */
+	if (!pdata) {
+		v4l_err(client, "No platform data!\n");
+		return -ENODEV;
+	}
+	memcpy(&state->pdata, pdata, sizeof(state->pdata));
+	state->fmt_code = MEDIA_BUS_FMT_RGB888_1X24;
+	state->colorspace = V4L2_COLORSPACE_SRGB;
+
+	sd = &state->sd;
+
+	v4l2_dbg(1, debug, sd, "detecting adv7511 client on address 0x%x\n",
+			 client->addr << 1);
+
+	v4l2_i2c_subdev_init(sd, client, &adv7511_ops);
+	sd->internal_ops = &adv7511_int_ops;
+
+	hdl = &state->hdl;
+	v4l2_ctrl_handler_init(hdl, 10);
+	/* add in ascending ID order */
+	state->hdmi_mode_ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
+			V4L2_CID_DV_TX_MODE, V4L2_DV_TX_MODE_HDMI,
+			0, V4L2_DV_TX_MODE_DVI_D);
+	state->hotplug_ctrl = v4l2_ctrl_new_std(hdl, NULL,
+			V4L2_CID_DV_TX_HOTPLUG, 0, 1, 0, 0);
+	state->rx_sense_ctrl = v4l2_ctrl_new_std(hdl, NULL,
+			V4L2_CID_DV_TX_RXSENSE, 0, 1, 0, 0);
+	state->have_edid0_ctrl = v4l2_ctrl_new_std(hdl, NULL,
+			V4L2_CID_DV_TX_EDID_PRESENT, 0, 1, 0, 0);
+	state->rgb_quantization_range_ctrl =
+		v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
+			V4L2_CID_DV_TX_RGB_RANGE, V4L2_DV_RGB_RANGE_FULL,
+			0, V4L2_DV_RGB_RANGE_AUTO);
+	state->content_type_ctrl =
+		v4l2_ctrl_new_std_menu(hdl, &adv7511_ctrl_ops,
+			V4L2_CID_DV_TX_IT_CONTENT_TYPE, V4L2_DV_IT_CONTENT_TYPE_NO_ITC,
+			0, V4L2_DV_IT_CONTENT_TYPE_NO_ITC);
+	sd->ctrl_handler = hdl;
+	if (hdl->error) {
+		err = hdl->error;
+		goto err_hdl;
+	}
+	state->pad.flags = MEDIA_PAD_FL_SINK;
+	sd->entity.function = MEDIA_ENT_F_DV_ENCODER;
+	err = media_entity_pads_init(&sd->entity, 1, &state->pad);
+	if (err)
+		goto err_hdl;
+
+	/* EDID and CEC i2c addr */
+	state->i2c_edid_addr = state->pdata.i2c_edid << 1;
+	state->i2c_cec_addr = state->pdata.i2c_cec << 1;
+	state->i2c_pktmem_addr = state->pdata.i2c_pktmem << 1;
+
+	state->chip_revision = adv7511_rd(sd, 0x0);
+	chip_id[0] = adv7511_rd(sd, 0xf5);
+	chip_id[1] = adv7511_rd(sd, 0xf6);
+	if (chip_id[0] != 0x75 || chip_id[1] != 0x11) {
+		v4l2_err(sd, "chip_id != 0x7511, read 0x%02x%02x\n", chip_id[0],
+			 chip_id[1]);
+		err = -EIO;
+		goto err_entity;
+	}
+
+	state->i2c_edid = i2c_new_dummy(client->adapter,
+					state->i2c_edid_addr >> 1);
+	if (state->i2c_edid == NULL) {
+		v4l2_err(sd, "failed to register edid i2c client\n");
+		err = -ENOMEM;
+		goto err_entity;
+	}
+
+	adv7511_wr(sd, 0xe1, state->i2c_cec_addr);
+	if (state->pdata.cec_clk < 3000000 ||
+	    state->pdata.cec_clk > 100000000) {
+		v4l2_err(sd, "%s: cec_clk %u outside range, disabling cec\n",
+				__func__, state->pdata.cec_clk);
+		state->pdata.cec_clk = 0;
+	}
+
+	if (state->pdata.cec_clk) {
+		state->i2c_cec = i2c_new_dummy(client->adapter,
+					       state->i2c_cec_addr >> 1);
+		if (state->i2c_cec == NULL) {
+			v4l2_err(sd, "failed to register cec i2c client\n");
+			err = -ENOMEM;
+			goto err_unreg_edid;
+		}
+		adv7511_wr(sd, 0xe2, 0x00); /* power up cec section */
+	} else {
+		adv7511_wr(sd, 0xe2, 0x01); /* power down cec section */
+	}
+
+	state->i2c_pktmem = i2c_new_dummy(client->adapter, state->i2c_pktmem_addr >> 1);
+	if (state->i2c_pktmem == NULL) {
+		v4l2_err(sd, "failed to register pktmem i2c client\n");
+		err = -ENOMEM;
+		goto err_unreg_cec;
+	}
+
+	state->work_queue = create_singlethread_workqueue(sd->name);
+	if (state->work_queue == NULL) {
+		v4l2_err(sd, "could not create workqueue\n");
+		err = -ENOMEM;
+		goto err_unreg_pktmem;
+	}
+
+	INIT_DELAYED_WORK(&state->edid_handler, adv7511_edid_handler);
+
+	adv7511_init_setup(sd);
+
+#if IS_ENABLED(CONFIG_VIDEO_ADV7511_CEC)
+	state->cec_adap = cec_allocate_adapter(&adv7511_cec_adap_ops,
+		state, dev_name(&client->dev), CEC_CAP_DEFAULTS,
+		ADV7511_MAX_ADDRS);
+	err = PTR_ERR_OR_ZERO(state->cec_adap);
+	if (err) {
+		destroy_workqueue(state->work_queue);
+		goto err_unreg_pktmem;
+	}
+#endif
+
+	adv7511_set_isr(sd, true);
+	adv7511_check_monitor_present_status(sd);
+
+	v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
+			  client->addr << 1, client->adapter->name);
+	return 0;
+
+err_unreg_pktmem:
+	i2c_unregister_device(state->i2c_pktmem);
+err_unreg_cec:
+	if (state->i2c_cec)
+		i2c_unregister_device(state->i2c_cec);
+err_unreg_edid:
+	i2c_unregister_device(state->i2c_edid);
+err_entity:
+	media_entity_cleanup(&sd->entity);
+err_hdl:
+	v4l2_ctrl_handler_free(&state->hdl);
+	return err;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int adv7511_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct adv7511_state *state = get_adv7511_state(sd);
+
+	state->chip_revision = -1;
+
+	v4l2_dbg(1, debug, sd, "%s removed @ 0x%x (%s)\n", client->name,
+		 client->addr << 1, client->adapter->name);
+
+	adv7511_set_isr(sd, false);
+	adv7511_init_setup(sd);
+	cancel_delayed_work(&state->edid_handler);
+	i2c_unregister_device(state->i2c_edid);
+	if (state->i2c_cec)
+		i2c_unregister_device(state->i2c_cec);
+	i2c_unregister_device(state->i2c_pktmem);
+	destroy_workqueue(state->work_queue);
+	v4l2_device_unregister_subdev(sd);
+	media_entity_cleanup(&sd->entity);
+	v4l2_ctrl_handler_free(sd->ctrl_handler);
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct i2c_device_id adv7511_id[] = {
+	{ "adv7511", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adv7511_id);
+
+static struct i2c_driver adv7511_driver = {
+	.driver = {
+		.name = "adv7511",
+	},
+	.probe = adv7511_probe,
+	.remove = adv7511_remove,
+	.id_table = adv7511_id,
+};
+
+module_i2c_driver(adv7511_driver);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/i2c/Makefile linux-libre-5.1.21-gnu/drivers/media/i2c/Makefile
--- linux-libre-5.1-gnu/drivers/media/i2c/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/i2c/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -35,7 +35,7 @@ obj-$(CONFIG_VIDEO_ADV748X) += adv748x/
 obj-$(CONFIG_VIDEO_ADV7604) += adv7604.o
 obj-$(CONFIG_VIDEO_ADV7842) += adv7842.o
 obj-$(CONFIG_VIDEO_AD9389B) += ad9389b.o
-obj-$(CONFIG_VIDEO_ADV7511) += adv7511.o
+obj-$(CONFIG_VIDEO_ADV7511) += adv7511-v4l2.o
 obj-$(CONFIG_VIDEO_VPX3220) += vpx3220.o
 obj-$(CONFIG_VIDEO_VS6624)  += vs6624.o
 obj-$(CONFIG_VIDEO_BT819) += bt819.o
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/i2c/mt9m111.c linux-libre-5.1.21-gnu/drivers/media/i2c/mt9m111.c
--- linux-libre-5.1-gnu/drivers/media/i2c/mt9m111.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/i2c/mt9m111.c	2019-07-28 02:28:39.000000000 -0400
@@ -1248,9 +1248,11 @@ static int mt9m111_probe(struct i2c_clie
 	if (!mt9m111)
 		return -ENOMEM;
 
-	ret = mt9m111_probe_fw(client, mt9m111);
-	if (ret)
-		return ret;
+	if (dev_fwnode(&client->dev)) {
+		ret = mt9m111_probe_fw(client, mt9m111);
+		if (ret)
+			return ret;
+	}
 
 	mt9m111->clk = v4l2_clk_get(&client->dev, "mclk");
 	if (IS_ERR(mt9m111->clk))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/i2c/ov2659.c linux-libre-5.1.21-gnu/drivers/media/i2c/ov2659.c
--- linux-libre-5.1-gnu/drivers/media/i2c/ov2659.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/i2c/ov2659.c	2019-07-28 02:28:39.000000000 -0400
@@ -1117,8 +1117,10 @@ static int ov2659_set_fmt(struct v4l2_su
 		if (ov2659_formats[index].code == mf->code)
 			break;
 
-	if (index < 0)
-		return -EINVAL;
+	if (index < 0) {
+		index = 0;
+		mf->code = ov2659_formats[index].code;
+	}
 
 	mf->colorspace = V4L2_COLORSPACE_SRGB;
 	mf->field = V4L2_FIELD_NONE;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/i2c/ov6650.c linux-libre-5.1.21-gnu/drivers/media/i2c/ov6650.c
--- linux-libre-5.1-gnu/drivers/media/i2c/ov6650.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/i2c/ov6650.c	2019-07-28 02:28:39.000000000 -0400
@@ -810,9 +810,18 @@ static int ov6650_video_probe(struct i2c
 	u8		pidh, pidl, midh, midl;
 	int		ret;
 
+	priv->clk = v4l2_clk_get(&client->dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		ret = PTR_ERR(priv->clk);
+		dev_err(&client->dev, "v4l2_clk request err: %d\n", ret);
+		return ret;
+	}
+
 	ret = ov6650_s_power(&priv->subdev, 1);
 	if (ret < 0)
-		return ret;
+		goto eclkput;
+
+	msleep(20);
 
 	/*
 	 * check and show product ID and manufacturer ID
@@ -847,6 +856,11 @@ static int ov6650_video_probe(struct i2c
 
 done:
 	ov6650_s_power(&priv->subdev, 0);
+	if (!ret)
+		return 0;
+eclkput:
+	v4l2_clk_put(priv->clk);
+
 	return ret;
 }
 
@@ -989,18 +1003,9 @@ static int ov6650_probe(struct i2c_clien
 	priv->code	  = MEDIA_BUS_FMT_YUYV8_2X8;
 	priv->colorspace  = V4L2_COLORSPACE_JPEG;
 
-	priv->clk = v4l2_clk_get(&client->dev, NULL);
-	if (IS_ERR(priv->clk)) {
-		ret = PTR_ERR(priv->clk);
-		goto eclkget;
-	}
-
 	ret = ov6650_video_probe(client);
-	if (ret) {
-		v4l2_clk_put(priv->clk);
-eclkget:
+	if (ret)
 		v4l2_ctrl_handler_free(&priv->hdl);
-	}
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/i2c/ov7670.c linux-libre-5.1.21-gnu/drivers/media/i2c/ov7670.c
--- linux-libre-5.1-gnu/drivers/media/i2c/ov7670.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/i2c/ov7670.c	2019-07-28 02:28:39.000000000 -0400
@@ -1664,6 +1664,7 @@ static int ov7670_s_power(struct v4l2_su
 
 	if (on) {
 		ov7670_power_on (sd);
+		ov7670_init(sd, 0);
 		ov7670_apply_fmt(sd);
 		ov7675_apply_framerate(sd);
 		v4l2_ctrl_handler_setup(&info->hdl);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/i2c/ov7740.c linux-libre-5.1.21-gnu/drivers/media/i2c/ov7740.c
--- linux-libre-5.1-gnu/drivers/media/i2c/ov7740.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/i2c/ov7740.c	2019-07-28 02:28:39.000000000 -0400
@@ -761,7 +761,11 @@ static int ov7740_try_fmt_internal(struc
 
 		fsize++;
 	}
-
+	if (i >= ARRAY_SIZE(ov7740_framesizes)) {
+		fsize = &ov7740_framesizes[0];
+		fmt->width = fsize->width;
+		fmt->height = fsize->height;
+	}
 	if (ret_frmsize != NULL)
 		*ret_frmsize = fsize;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/media-device.c linux-libre-5.1.21-gnu/drivers/media/media-device.c
--- linux-libre-5.1-gnu/drivers/media/media-device.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/media-device.c	2019-07-28 02:28:39.000000000 -0400
@@ -502,6 +502,7 @@ static long media_device_enum_links32(st
 {
 	struct media_links_enum links;
 	compat_uptr_t pads_ptr, links_ptr;
+	int ret;
 
 	memset(&links, 0, sizeof(links));
 
@@ -513,7 +514,14 @@ static long media_device_enum_links32(st
 	links.pads = compat_ptr(pads_ptr);
 	links.links = compat_ptr(links_ptr);
 
-	return media_device_enum_links(mdev, &links);
+	ret = media_device_enum_links(mdev, &links);
+	if (ret)
+		return ret;
+
+	if (copy_to_user(ulinks->reserved, links.reserved,
+			 sizeof(ulinks->reserved)))
+		return -EFAULT;
+	return 0;
 }
 
 #define MEDIA_IOC_ENUM_LINKS32		_IOWR('|', 0x02, struct media_links_enum32)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/pci/saa7146/hexium_gemini.c linux-libre-5.1.21-gnu/drivers/media/pci/saa7146/hexium_gemini.c
--- linux-libre-5.1-gnu/drivers/media/pci/saa7146/hexium_gemini.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/pci/saa7146/hexium_gemini.c	2019-07-28 02:28:39.000000000 -0400
@@ -270,9 +270,8 @@ static int hexium_attach(struct saa7146_
 	/* enable i2c-port pins */
 	saa7146_write(dev, MC1, (MASK_08 | MASK_24 | MASK_10 | MASK_26));
 
-	hexium->i2c_adapter = (struct i2c_adapter) {
-		.name = "hexium gemini",
-	};
+	strscpy(hexium->i2c_adapter.name, "hexium gemini",
+		sizeof(hexium->i2c_adapter.name));
 	saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
 	if (i2c_add_adapter(&hexium->i2c_adapter) < 0) {
 		DEB_S("cannot register i2c-device. skipping.\n");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/pci/saa7146/hexium_orion.c linux-libre-5.1.21-gnu/drivers/media/pci/saa7146/hexium_orion.c
--- linux-libre-5.1-gnu/drivers/media/pci/saa7146/hexium_orion.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/pci/saa7146/hexium_orion.c	2019-07-28 02:28:39.000000000 -0400
@@ -231,9 +231,8 @@ static int hexium_probe(struct saa7146_d
 	saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 	saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 
-	hexium->i2c_adapter = (struct i2c_adapter) {
-		.name = "hexium orion",
-	};
+	strscpy(hexium->i2c_adapter.name, "hexium orion",
+		sizeof(hexium->i2c_adapter.name));
 	saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
 	if (i2c_add_adapter(&hexium->i2c_adapter) < 0) {
 		DEB_S("cannot register i2c-device. skipping.\n");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/pci/saa7164/saa7164-core.c linux-libre-5.1.21-gnu/drivers/media/pci/saa7164/saa7164-core.c
--- linux-libre-5.1-gnu/drivers/media/pci/saa7164/saa7164-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/pci/saa7164/saa7164-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -1122,16 +1122,25 @@ static int saa7164_proc_show(struct seq_
 	return 0;
 }
 
+static struct proc_dir_entry *saa7164_pe;
+
 static int saa7164_proc_create(void)
 {
-	struct proc_dir_entry *pe;
-
-	pe = proc_create_single("saa7164", S_IRUGO, NULL, saa7164_proc_show);
-	if (!pe)
+	saa7164_pe = proc_create_single("saa7164", 0444, NULL, saa7164_proc_show);
+	if (!saa7164_pe)
 		return -ENOMEM;
 
 	return 0;
 }
+
+static void saa7164_proc_destroy(void)
+{
+	if (saa7164_pe)
+		remove_proc_entry("saa7164", NULL);
+}
+#else
+static int saa7164_proc_create(void) { return 0; }
+static void saa7164_proc_destroy(void) {}
 #endif
 
 static int saa7164_thread_function(void *data)
@@ -1503,19 +1512,21 @@ static struct pci_driver saa7164_pci_dri
 
 static int __init saa7164_init(void)
 {
-	printk(KERN_INFO "saa7164 driver loaded\n");
+	int ret = pci_register_driver(&saa7164_pci_driver);
+
+	if (ret)
+		return ret;
 
-#ifdef CONFIG_PROC_FS
 	saa7164_proc_create();
-#endif
-	return pci_register_driver(&saa7164_pci_driver);
+
+	pr_info("saa7164 driver loaded\n");
+
+	return 0;
 }
 
 static void __exit saa7164_fini(void)
 {
-#ifdef CONFIG_PROC_FS
-	remove_proc_entry("saa7164", NULL);
-#endif
+	saa7164_proc_destroy();
 	pci_unregister_driver(&saa7164_pci_driver);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/aspeed-video.c linux-libre-5.1.21-gnu/drivers/media/platform/aspeed-video.c
--- linux-libre-5.1-gnu/drivers/media/platform/aspeed-video.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/aspeed-video.c	2019-07-28 02:28:39.000000000 -0400
@@ -1600,8 +1600,9 @@ static int aspeed_video_init(struct aspe
 		return -ENODEV;
 	}
 
-	rc = devm_request_irq(dev, irq, aspeed_video_irq, IRQF_SHARED,
-			      DEVICE_NAME, video);
+	rc = devm_request_threaded_irq(dev, irq, NULL, aspeed_video_irq,
+				       IRQF_ONESHOT | IRQF_SHARED, DEVICE_NAME,
+				       video);
 	if (rc < 0) {
 		dev_err(dev, "Unable to request IRQ %d\n", irq);
 		return rc;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/atmel/atmel-isc.c linux-libre-5.1.21-gnu/drivers/media/platform/atmel/atmel-isc.c
--- linux-libre-5.1-gnu/drivers/media/platform/atmel/atmel-isc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/atmel/atmel-isc.c	2019-07-28 02:28:39.000000000 -0400
@@ -2065,8 +2065,11 @@ static int isc_parse_dt(struct device *d
 			break;
 		}
 
-		subdev_entity->asd = devm_kzalloc(dev,
-				     sizeof(*subdev_entity->asd), GFP_KERNEL);
+		/* asd will be freed by the subsystem once it's added to the
+		 * notifier list
+		 */
+		subdev_entity->asd = kzalloc(sizeof(*subdev_entity->asd),
+					     GFP_KERNEL);
 		if (!subdev_entity->asd) {
 			of_node_put(rem);
 			ret = -ENOMEM;
@@ -2210,6 +2213,7 @@ static int atmel_isc_probe(struct platfo
 						     subdev_entity->asd);
 		if (ret) {
 			fwnode_handle_put(subdev_entity->asd->match.fwnode);
+			kfree(subdev_entity->asd);
 			goto cleanup_subdev;
 		}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/coda/coda-bit.c linux-libre-5.1.21-gnu/drivers/media/platform/coda/coda-bit.c
--- linux-libre-5.1-gnu/drivers/media/platform/coda/coda-bit.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/coda/coda-bit.c	2019-07-28 02:28:39.000000000 -0400
@@ -1743,6 +1743,7 @@ static int __coda_start_decoding(struct
 		v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
 		return ret;
 	}
+	ctx->sequence_offset = ~0U;
 	ctx->initialized = 1;
 
 	/* Update kfifo out pointer from coda bitstream read pointer */
@@ -2010,6 +2011,9 @@ static int coda_prepare_decode(struct co
 	/* Clear decode success flag */
 	coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS);
 
+	/* Clear error return value */
+	coda_write(dev, 0, CODA_RET_DEC_PIC_ERR_MB);
+
 	trace_coda_dec_pic_run(ctx, meta);
 
 	coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
@@ -2147,12 +2151,17 @@ static void coda_finish_decode(struct co
 		else if (ctx->display_idx < 0)
 			ctx->hold = true;
 	} else if (decoded_idx == -2) {
+		if (ctx->display_idx >= 0 &&
+		    ctx->display_idx < ctx->num_internal_frames)
+			ctx->sequence_offset++;
 		/* no frame was decoded, we still return remaining buffers */
 	} else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
 		v4l2_err(&dev->v4l2_dev,
 			 "decoded frame index out of range: %d\n", decoded_idx);
 	} else {
-		val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM) - 1;
+		val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM);
+		if (ctx->sequence_offset == -1)
+			ctx->sequence_offset = val;
 		val -= ctx->sequence_offset;
 		spin_lock(&ctx->buffer_meta_lock);
 		if (!list_empty(&ctx->buffer_meta_list)) {
@@ -2305,7 +2314,6 @@ irqreturn_t coda_irq_handler(int irq, vo
 	if (ctx == NULL) {
 		v4l2_err(&dev->v4l2_dev,
 			 "Instance released before the end of transaction\n");
-		mutex_unlock(&dev->coda_mutex);
 		return IRQ_HANDLED;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/coda/coda-common.c linux-libre-5.1.21-gnu/drivers/media/platform/coda/coda-common.c
--- linux-libre-5.1-gnu/drivers/media/platform/coda/coda-common.c	2019-05-05 21:28:51.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/coda/coda-common.c	2019-07-28 13:30:46.000000000 -0400
@@ -1007,6 +1007,8 @@ static int coda_encoder_cmd(struct file
 	/* Set the stream-end flag on this context */
 	ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
 
+	flush_work(&ctx->pic_run_work);
+
 	/* If there is no buffer in flight, wake up */
 	if (!ctx->streamon_out || ctx->qsequence == ctx->osequence) {
 		dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/davinci/vpif_capture.c linux-libre-5.1.21-gnu/drivers/media/platform/davinci/vpif_capture.c
--- linux-libre-5.1-gnu/drivers/media/platform/davinci/vpif_capture.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/davinci/vpif_capture.c	2019-07-28 02:28:39.000000000 -0400
@@ -1384,6 +1384,14 @@ vpif_init_free_channel_objects:
 	return err;
 }
 
+static inline void free_vpif_objs(void)
+{
+	int i;
+
+	for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++)
+		kfree(vpif_obj.dev[i]);
+}
+
 static int vpif_async_bound(struct v4l2_async_notifier *notifier,
 			    struct v4l2_subdev *subdev,
 			    struct v4l2_async_subdev *asd)
@@ -1653,7 +1661,7 @@ static __init int vpif_probe(struct plat
 	err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev);
 	if (err) {
 		v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n");
-		goto cleanup;
+		goto vpif_free;
 	}
 
 	while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) {
@@ -1700,7 +1708,9 @@ static __init int vpif_probe(struct plat
 				  "registered sub device %s\n",
 				   subdevdata->name);
 		}
-		vpif_probe_complete();
+		err = vpif_probe_complete();
+		if (err)
+			goto probe_subdev_out;
 	} else {
 		vpif_obj.notifier.ops = &vpif_async_ops;
 		err = v4l2_async_notifier_register(&vpif_obj.v4l2_dev,
@@ -1719,6 +1729,8 @@ probe_subdev_out:
 	kfree(vpif_obj.sd);
 vpif_unregister:
 	v4l2_device_unregister(&vpif_obj.v4l2_dev);
+vpif_free:
+	free_vpif_objs();
 cleanup:
 	v4l2_async_notifier_cleanup(&vpif_obj.notifier);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/davinci/vpss.c linux-libre-5.1.21-gnu/drivers/media/platform/davinci/vpss.c
--- linux-libre-5.1-gnu/drivers/media/platform/davinci/vpss.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/davinci/vpss.c	2019-07-28 02:28:39.000000000 -0400
@@ -518,6 +518,11 @@ static int __init vpss_init(void)
 		return -EBUSY;
 
 	oper_cfg.vpss_regs_base2 = ioremap(VPSS_CLK_CTRL, 4);
+	if (unlikely(!oper_cfg.vpss_regs_base2)) {
+		release_mem_region(VPSS_CLK_CTRL, 4);
+		return -ENOMEM;
+	}
+
 	writel(VPSS_CLK_CTRL_VENCCLKEN |
 		     VPSS_CLK_CTRL_DACCLKEN, oper_cfg.vpss_regs_base2);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/Kconfig linux-libre-5.1.21-gnu/drivers/media/platform/Kconfig
--- linux-libre-5.1-gnu/drivers/media/platform/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -649,7 +649,7 @@ config VIDEO_SECO_CEC
 config VIDEO_SECO_RC
 	bool "SECO Boards IR RC5 support"
 	depends on VIDEO_SECO_CEC
-	depends on RC_CORE
+	depends on RC_CORE=y || RC_CORE = VIDEO_SECO_CEC
 	help
 	  If you say yes here you will get support for the
 	  SECO Boards Consumer-IR in seco-cec driver.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/marvell-ccic/mcam-core.c linux-libre-5.1.21-gnu/drivers/media/platform/marvell-ccic/mcam-core.c
--- linux-libre-5.1-gnu/drivers/media/platform/marvell-ccic/mcam-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/marvell-ccic/mcam-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -200,7 +200,6 @@ struct mcam_vb_buffer {
 	struct list_head queue;
 	struct mcam_dma_desc *dma_desc;	/* Descriptor virtual address */
 	dma_addr_t dma_desc_pa;		/* Descriptor physical address */
-	int dma_desc_nent;		/* Number of mapped descriptors */
 };
 
 static inline struct mcam_vb_buffer *vb_to_mvb(struct vb2_v4l2_buffer *vb)
@@ -608,9 +607,11 @@ static void mcam_dma_contig_done(struct
 static void mcam_sg_next_buffer(struct mcam_camera *cam)
 {
 	struct mcam_vb_buffer *buf;
+	struct sg_table *sg_table;
 
 	buf = list_first_entry(&cam->buffers, struct mcam_vb_buffer, queue);
 	list_del_init(&buf->queue);
+	sg_table = vb2_dma_sg_plane_desc(&buf->vb_buf.vb2_buf, 0);
 	/*
 	 * Very Bad Not Good Things happen if you don't clear
 	 * C1_DESC_ENA before making any descriptor changes.
@@ -618,7 +619,7 @@ static void mcam_sg_next_buffer(struct m
 	mcam_reg_clear_bit(cam, REG_CTRL1, C1_DESC_ENA);
 	mcam_reg_write(cam, REG_DMA_DESC_Y, buf->dma_desc_pa);
 	mcam_reg_write(cam, REG_DESC_LEN_Y,
-			buf->dma_desc_nent*sizeof(struct mcam_dma_desc));
+			sg_table->nents * sizeof(struct mcam_dma_desc));
 	mcam_reg_write(cam, REG_DESC_LEN_U, 0);
 	mcam_reg_write(cam, REG_DESC_LEN_V, 0);
 	mcam_reg_set_bit(cam, REG_CTRL1, C1_DESC_ENA);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c linux-libre-5.1.21-gnu/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
--- linux-libre-5.1-gnu/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c	2019-07-28 02:28:39.000000000 -0400
@@ -388,7 +388,7 @@ static void mtk_vdec_worker(struct work_
 	}
 	buf.va = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
 	buf.dma_addr = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
-	buf.size = (size_t)src_buf->planes[0].bytesused;
+	buf.size = (size_t)src_buf->vb2_buf.planes[0].bytesused;
 	if (!buf.va) {
 		v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
 		mtk_v4l2_err("[%d] id=%d src_addr is NULL!!",
@@ -1155,10 +1155,10 @@ static void vb2ops_vdec_buf_queue(struct
 
 	src_mem.va = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
 	src_mem.dma_addr = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
-	src_mem.size = (size_t)src_buf->planes[0].bytesused;
+	src_mem.size = (size_t)src_buf->vb2_buf.planes[0].bytesused;
 	mtk_v4l2_debug(2,
 			"[%d] buf id=%d va=%p dma=%pad size=%zx",
-			ctx->id, src_buf->index,
+			ctx->id, src_buf->vb2_buf.index,
 			src_mem.va, &src_mem.dma_addr,
 			src_mem.size);
 
@@ -1182,7 +1182,7 @@ static void vb2ops_vdec_buf_queue(struct
 		}
 		mtk_v4l2_debug(ret ? 0 : 1,
 			       "[%d] vdec_if_decode() src_buf=%d, size=%zu, fail=%d, res_chg=%d",
-			       ctx->id, src_buf->index,
+			       ctx->id, src_buf->vb2_buf.index,
 			       src_mem.size, ret, res_chg);
 		return;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c linux-libre-5.1.21-gnu/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
--- linux-libre-5.1-gnu/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c	2019-07-28 02:28:39.000000000 -0400
@@ -894,7 +894,7 @@ static void vb2ops_venc_stop_streaming(s
 
 	if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 		while ((dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx))) {
-			dst_buf->planes[0].bytesused = 0;
+			dst_buf->vb2_buf.planes[0].bytesused = 0;
 			v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
 		}
 	} else {
@@ -947,7 +947,7 @@ static int mtk_venc_encode_header(void *
 
 	bs_buf.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
 	bs_buf.dma_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
-	bs_buf.size = (size_t)dst_buf->planes[0].length;
+	bs_buf.size = (size_t)dst_buf->vb2_buf.planes[0].length;
 
 	mtk_v4l2_debug(1,
 			"[%d] buf id=%d va=0x%p dma_addr=0x%llx size=%zu",
@@ -976,7 +976,7 @@ static int mtk_venc_encode_header(void *
 	}
 
 	ctx->state = MTK_STATE_HEADER;
-	dst_buf->planes[0].bytesused = enc_result.bs_size;
+	dst_buf->vb2_buf.planes[0].bytesused = enc_result.bs_size;
 	v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
 
 	return 0;
@@ -1107,12 +1107,12 @@ static void mtk_venc_worker(struct work_
 
 	if (ret) {
 		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
-		dst_buf->planes[0].bytesused = 0;
+		dst_buf->vb2_buf.planes[0].bytesused = 0;
 		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
 		mtk_v4l2_err("venc_if_encode failed=%d", ret);
 	} else {
 		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
-		dst_buf->planes[0].bytesused = enc_result.bs_size;
+		dst_buf->vb2_buf.planes[0].bytesused = enc_result.bs_size;
 		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
 		mtk_v4l2_debug(2, "venc_if_encode bs size=%d",
 				 enc_result.bs_size);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/qcom/venus/firmware.c linux-libre-5.1.21-gnu/drivers/media/platform/qcom/venus/firmware.c
--- linux-libre-5.1-gnu/drivers/media/platform/qcom/venus/firmware.c	2019-05-05 21:30:22.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/qcom/venus/firmware.c	2019-07-28 13:32:29.000000000 -0400
@@ -87,11 +87,11 @@ static int venus_load_fw(struct venus_co
 
 	ret = of_address_to_resource(node, 0, &r);
 	if (ret)
-		return ret;
+		goto err_put_node;
 
 	ret = reject_firmware(&mdt, fwname, dev);
 	if (ret < 0)
-		return ret;
+		goto err_put_node;
 
 	fw_size = qcom_mdt_get_size(mdt);
 	if (fw_size < 0) {
@@ -125,6 +125,8 @@ static int venus_load_fw(struct venus_co
 	memunmap(mem_va);
 err_release_fw:
 	release_firmware(mdt);
+err_put_node:
+	of_node_put(node);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/rcar_fdp1.c linux-libre-5.1.21-gnu/drivers/media/platform/rcar_fdp1.c
--- linux-libre-5.1-gnu/drivers/media/platform/rcar_fdp1.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/rcar_fdp1.c	2019-07-28 02:28:39.000000000 -0400
@@ -257,6 +257,8 @@ MODULE_PARM_DESC(debug, "activate debug
 #define FD1_IP_H3_ES1			0x02010101
 #define FD1_IP_M3W			0x02010202
 #define FD1_IP_H3			0x02010203
+#define FD1_IP_M3N			0x02010204
+#define FD1_IP_E3			0x02010205
 
 /* LUTs */
 #define FD1_LUT_DIF_ADJ			0x1000
@@ -2365,6 +2367,12 @@ static int fdp1_probe(struct platform_de
 	case FD1_IP_H3:
 		dprintk(fdp1, "FDP1 Version R-Car H3\n");
 		break;
+	case FD1_IP_M3N:
+		dprintk(fdp1, "FDP1 Version R-Car M3N\n");
+		break;
+	case FD1_IP_E3:
+		dprintk(fdp1, "FDP1 Version R-Car E3\n");
+		break;
 	default:
 		dev_err(fdp1->dev, "FDP1 Unidentifiable (0x%08x)\n",
 				hw_version);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c linux-libre-5.1.21-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c
--- linux-libre-5.1-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c	2019-05-05 21:30:15.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c	2019-07-28 13:32:22.000000000 -0400
@@ -527,7 +527,8 @@ static void s5p_mfc_handle_seq_done(stru
 				dev);
 		ctx->mv_count = s5p_mfc_hw_call(dev->mfc_ops, get_mv_count,
 				dev);
-		ctx->scratch_buf_size = s5p_mfc_hw_call(dev->mfc_ops,
+		if (FW_HAS_E_MIN_SCRATCH_BUF(dev))
+			ctx->scratch_buf_size = s5p_mfc_hw_call(dev->mfc_ops,
 						get_min_scratch_buf_size, dev);
 		if (ctx->img_width == 0 || ctx->img_height == 0)
 			ctx->state = MFCINST_ERROR;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c linux-libre-5.1.21-gnu/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c
--- linux-libre-5.1-gnu/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c	2019-07-28 02:28:39.000000000 -0400
@@ -38,6 +38,11 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *
 	for (i = 0; i < pm->num_clocks; i++) {
 		pm->clocks[i] = devm_clk_get(pm->device, pm->clk_names[i]);
 		if (IS_ERR(pm->clocks[i])) {
+			/* additional clocks are optional */
+			if (i && PTR_ERR(pm->clocks[i]) == -ENOENT) {
+				pm->clocks[i] = NULL;
+				continue;
+			}
 			mfc_err("Failed to get clock: %s\n",
 				pm->clk_names[i]);
 			return PTR_ERR(pm->clocks[i]);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/stm32/stm32-dcmi.c linux-libre-5.1.21-gnu/drivers/media/platform/stm32/stm32-dcmi.c
--- linux-libre-5.1-gnu/drivers/media/platform/stm32/stm32-dcmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/stm32/stm32-dcmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -811,6 +811,9 @@ static int dcmi_try_fmt(struct stm32_dcm
 
 	sd_fmt = find_format_by_fourcc(dcmi, pix->pixelformat);
 	if (!sd_fmt) {
+		if (!dcmi->num_of_sd_formats)
+			return -ENODATA;
+
 		sd_fmt = dcmi->sd_formats[dcmi->num_of_sd_formats - 1];
 		pix->pixelformat = sd_fmt->fourcc;
 	}
@@ -989,6 +992,9 @@ static int dcmi_set_sensor_format(struct
 
 	sd_fmt = find_format_by_fourcc(dcmi, pix->pixelformat);
 	if (!sd_fmt) {
+		if (!dcmi->num_of_sd_formats)
+			return -ENODATA;
+
 		sd_fmt = dcmi->sd_formats[dcmi->num_of_sd_formats - 1];
 		pix->pixelformat = sd_fmt->fourcc;
 	}
@@ -1645,7 +1651,7 @@ static int dcmi_probe(struct platform_de
 	dcmi->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
 	if (IS_ERR(dcmi->rstc)) {
 		dev_err(&pdev->dev, "Could not get reset control\n");
-		return -ENODEV;
+		return PTR_ERR(dcmi->rstc);
 	}
 
 	/* Get bus characteristics from devicetree */
@@ -1660,7 +1666,7 @@ static int dcmi_probe(struct platform_de
 	of_node_put(np);
 	if (ret) {
 		dev_err(&pdev->dev, "Could not parse the endpoint\n");
-		return -ENODEV;
+		return ret;
 	}
 
 	if (ep.bus_type == V4L2_MBUS_CSI2_DPHY) {
@@ -1673,8 +1679,9 @@ static int dcmi_probe(struct platform_de
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq <= 0) {
-		dev_err(&pdev->dev, "Could not get irq\n");
-		return -ENODEV;
+		if (irq != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Could not get irq\n");
+		return irq;
 	}
 
 	dcmi->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1694,12 +1701,13 @@ static int dcmi_probe(struct platform_de
 					dev_name(&pdev->dev), dcmi);
 	if (ret) {
 		dev_err(&pdev->dev, "Unable to request irq %d\n", irq);
-		return -ENODEV;
+		return ret;
 	}
 
 	mclk = devm_clk_get(&pdev->dev, "mclk");
 	if (IS_ERR(mclk)) {
-		dev_err(&pdev->dev, "Unable to get mclk\n");
+		if (PTR_ERR(mclk) != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Unable to get mclk\n");
 		return PTR_ERR(mclk);
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/vicodec/codec-fwht.c linux-libre-5.1.21-gnu/drivers/media/platform/vicodec/codec-fwht.c
--- linux-libre-5.1-gnu/drivers/media/platform/vicodec/codec-fwht.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/vicodec/codec-fwht.c	2019-07-28 02:28:39.000000000 -0400
@@ -46,8 +46,12 @@ static const uint8_t zigzag[64] = {
 	63,
 };
 
-
-static int rlc(const s16 *in, __be16 *output, int blocktype)
+/*
+ * noinline_for_stack to work around
+ * https://bugs.llvm.org/show_bug.cgi?id=38809
+ */
+static int noinline_for_stack
+rlc(const s16 *in, __be16 *output, int blocktype)
 {
 	s16 block[8 * 8];
 	s16 *wp = block;
@@ -106,8 +110,8 @@ static int rlc(const s16 *in, __be16 *ou
  * This function will worst-case increase rlc_in by 65*2 bytes:
  * one s16 value for the header and 8 * 8 coefficients of type s16.
  */
-static u16 derlc(const __be16 **rlc_in, s16 *dwht_out,
-		 const __be16 *end_of_input)
+static noinline_for_stack u16
+derlc(const __be16 **rlc_in, s16 *dwht_out, const __be16 *end_of_input)
 {
 	/* header */
 	const __be16 *input = *rlc_in;
@@ -240,8 +244,9 @@ static void dequantize_inter(s16 *coeff)
 			*coeff <<= *quant;
 }
 
-static void fwht(const u8 *block, s16 *output_block, unsigned int stride,
-		 unsigned int input_step, bool intra)
+static void noinline_for_stack fwht(const u8 *block, s16 *output_block,
+				    unsigned int stride,
+				    unsigned int input_step, bool intra)
 {
 	/* we'll need more than 8 bits for the transformed coefficients */
 	s32 workspace1[8], workspace2[8];
@@ -373,7 +378,8 @@ static void fwht(const u8 *block, s16 *o
  * Furthermore values can be negative... This is just a version that
  * works with 16 signed data
  */
-static void fwht16(const s16 *block, s16 *output_block, int stride, int intra)
+static void noinline_for_stack
+fwht16(const s16 *block, s16 *output_block, int stride, int intra)
 {
 	/* we'll need more than 8 bits for the transformed coefficients */
 	s32 workspace1[8], workspace2[8];
@@ -456,7 +462,8 @@ static void fwht16(const s16 *block, s16
 	}
 }
 
-static void ifwht(const s16 *block, s16 *output_block, int intra)
+static noinline_for_stack void
+ifwht(const s16 *block, s16 *output_block, int intra)
 {
 	/*
 	 * we'll need more than 8 bits for the transformed coefficients
@@ -604,9 +611,9 @@ static int var_inter(const s16 *old, con
 	return ret;
 }
 
-static int decide_blocktype(const u8 *cur, const u8 *reference,
-			    s16 *deltablock, unsigned int stride,
-			    unsigned int input_step)
+static noinline_for_stack int
+decide_blocktype(const u8 *cur, const u8 *reference, s16 *deltablock,
+		 unsigned int stride, unsigned int input_step)
 {
 	s16 tmp[64];
 	s16 old[64];
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/vicodec/vicodec-core.c linux-libre-5.1.21-gnu/drivers/media/platform/vicodec/vicodec-core.c
--- linux-libre-5.1-gnu/drivers/media/platform/vicodec/vicodec-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/vicodec/vicodec-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -159,12 +159,10 @@ static int device_process(struct vicodec
 			  struct vb2_v4l2_buffer *dst_vb)
 {
 	struct vicodec_dev *dev = ctx->dev;
-	struct vicodec_q_data *q_dst;
 	struct v4l2_fwht_state *state = &ctx->state;
 	u8 *p_src, *p_dst;
 	int ret;
 
-	q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 	if (ctx->is_enc)
 		p_src = vb2_plane_vaddr(&src_vb->vb2_buf, 0);
 	else
@@ -186,8 +184,10 @@ static int device_process(struct vicodec
 			return ret;
 		vb2_set_plane_payload(&dst_vb->vb2_buf, 0, ret);
 	} else {
+		struct vicodec_q_data *q_dst;
 		unsigned int comp_frame_size = ntohl(ctx->state.header.size);
 
+		q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 		if (comp_frame_size > ctx->comp_max_size)
 			return -EINVAL;
 		state->info = q_dst->info;
@@ -196,11 +196,6 @@ static int device_process(struct vicodec
 			return ret;
 		vb2_set_plane_payload(&dst_vb->vb2_buf, 0, q_dst->sizeimage);
 	}
-
-	dst_vb->sequence = q_dst->sequence++;
-	dst_vb->flags &= ~V4L2_BUF_FLAG_LAST;
-	v4l2_m2m_buf_copy_metadata(src_vb, dst_vb, !ctx->is_enc);
-
 	return 0;
 }
 
@@ -274,16 +269,22 @@ static void device_run(void *priv)
 	struct vicodec_ctx *ctx = priv;
 	struct vicodec_dev *dev = ctx->dev;
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
-	struct vicodec_q_data *q_src;
+	struct vicodec_q_data *q_src, *q_dst;
 	u32 state;
 
 	src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
 	dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
 	q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
 
 	state = VB2_BUF_STATE_DONE;
 	if (device_process(ctx, src_buf, dst_buf))
 		state = VB2_BUF_STATE_ERROR;
+	else
+		dst_buf->sequence = q_dst->sequence++;
+	dst_buf->flags &= ~V4L2_BUF_FLAG_LAST;
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, !ctx->is_enc);
+
 	ctx->last_dst_buf = dst_buf;
 
 	spin_lock(ctx->lock);
@@ -1338,8 +1339,11 @@ static int vicodec_start_streaming(struc
 	chroma_div = info->width_div * info->height_div;
 	q_data->sequence = 0;
 
-	ctx->last_src_buf = NULL;
-	ctx->last_dst_buf = NULL;
+	if (V4L2_TYPE_IS_OUTPUT(q->type))
+		ctx->last_src_buf = NULL;
+	else
+		ctx->last_dst_buf = NULL;
+
 	state->gop_cnt = 0;
 
 	if ((V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) ||
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/video-mux.c linux-libre-5.1.21-gnu/drivers/media/platform/video-mux.c
--- linux-libre-5.1-gnu/drivers/media/platform/video-mux.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/video-mux.c	2019-07-28 02:28:39.000000000 -0400
@@ -419,9 +419,14 @@ static int video_mux_probe(struct platfo
 	vmux->active = -1;
 	vmux->pads = devm_kcalloc(dev, num_pads, sizeof(*vmux->pads),
 				  GFP_KERNEL);
+	if (!vmux->pads)
+		return -ENOMEM;
+
 	vmux->format_mbus = devm_kcalloc(dev, num_pads,
 					 sizeof(*vmux->format_mbus),
 					 GFP_KERNEL);
+	if (!vmux->format_mbus)
+		return -ENOMEM;
 
 	for (i = 0; i < num_pads; i++) {
 		vmux->pads[i].flags = (i < num_pads - 1) ? MEDIA_PAD_FL_SINK
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/vim2m.c linux-libre-5.1.21-gnu/drivers/media/platform/vim2m.c
--- linux-libre-5.1-gnu/drivers/media/platform/vim2m.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/vim2m.c	2019-07-28 02:28:39.000000000 -0400
@@ -1262,6 +1262,15 @@ static int vim2m_release(struct file *fi
 	return 0;
 }
 
+static void vim2m_device_release(struct video_device *vdev)
+{
+	struct vim2m_dev *dev = container_of(vdev, struct vim2m_dev, vfd);
+
+	v4l2_device_unregister(&dev->v4l2_dev);
+	v4l2_m2m_release(dev->m2m_dev);
+	kfree(dev);
+}
+
 static const struct v4l2_file_operations vim2m_fops = {
 	.owner		= THIS_MODULE,
 	.open		= vim2m_open,
@@ -1277,7 +1286,7 @@ static const struct video_device vim2m_v
 	.fops		= &vim2m_fops,
 	.ioctl_ops	= &vim2m_ioctl_ops,
 	.minor		= -1,
-	.release	= video_device_release_empty,
+	.release	= vim2m_device_release,
 	.device_caps	= V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
 };
 
@@ -1298,13 +1307,13 @@ static int vim2m_probe(struct platform_d
 	struct video_device *vfd;
 	int ret;
 
-	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return -ENOMEM;
 
 	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
 	if (ret)
-		return ret;
+		goto error_free;
 
 	atomic_set(&dev->num_inst, 0);
 	mutex_init(&dev->dev_mutex);
@@ -1317,7 +1326,7 @@ static int vim2m_probe(struct platform_d
 	ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
 	if (ret) {
 		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
-		goto unreg_v4l2;
+		goto error_v4l2;
 	}
 
 	video_set_drvdata(vfd, dev);
@@ -1330,7 +1339,7 @@ static int vim2m_probe(struct platform_d
 	if (IS_ERR(dev->m2m_dev)) {
 		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
 		ret = PTR_ERR(dev->m2m_dev);
-		goto unreg_dev;
+		goto error_dev;
 	}
 
 #ifdef CONFIG_MEDIA_CONTROLLER
@@ -1346,27 +1355,29 @@ static int vim2m_probe(struct platform_d
 						 MEDIA_ENT_F_PROC_VIDEO_SCALER);
 	if (ret) {
 		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller\n");
-		goto unreg_m2m;
+		goto error_dev;
 	}
 
 	ret = media_device_register(&dev->mdev);
 	if (ret) {
 		v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n");
-		goto unreg_m2m_mc;
+		goto error_m2m_mc;
 	}
 #endif
 	return 0;
 
 #ifdef CONFIG_MEDIA_CONTROLLER
-unreg_m2m_mc:
+error_m2m_mc:
 	v4l2_m2m_unregister_media_controller(dev->m2m_dev);
-unreg_m2m:
-	v4l2_m2m_release(dev->m2m_dev);
 #endif
-unreg_dev:
+error_dev:
 	video_unregister_device(&dev->vfd);
-unreg_v4l2:
+	/* vim2m_device_release called by video_unregister_device to release various objects */
+	return ret;
+error_v4l2:
 	v4l2_device_unregister(&dev->v4l2_dev);
+error_free:
+	kfree(dev);
 
 	return ret;
 }
@@ -1382,9 +1393,7 @@ static int vim2m_remove(struct platform_
 	v4l2_m2m_unregister_media_controller(dev->m2m_dev);
 	media_device_cleanup(&dev->mdev);
 #endif
-	v4l2_m2m_release(dev->m2m_dev);
 	video_unregister_device(&dev->vfd);
-	v4l2_device_unregister(&dev->v4l2_dev);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/vimc/vimc-capture.c linux-libre-5.1.21-gnu/drivers/media/platform/vimc/vimc-capture.c
--- linux-libre-5.1-gnu/drivers/media/platform/vimc/vimc-capture.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/vimc/vimc-capture.c	2019-07-28 02:28:39.000000000 -0400
@@ -130,12 +130,15 @@ static int vimc_cap_s_fmt_vid_cap(struct
 				  struct v4l2_format *f)
 {
 	struct vimc_cap_device *vcap = video_drvdata(file);
+	int ret;
 
 	/* Do not change the format while stream is on */
 	if (vb2_is_busy(&vcap->queue))
 		return -EBUSY;
 
-	vimc_cap_try_fmt_vid_cap(file, priv, f);
+	ret = vimc_cap_try_fmt_vid_cap(file, priv, f);
+	if (ret)
+		return ret;
 
 	dev_dbg(vcap->dev, "%s: format update: "
 		"old:%dx%d (0x%x, %d, %d, %d, %d) "
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/vimc/vimc-core.c linux-libre-5.1.21-gnu/drivers/media/platform/vimc/vimc-core.c
--- linux-libre-5.1-gnu/drivers/media/platform/vimc/vimc-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/vimc/vimc-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -304,6 +304,8 @@ static int vimc_probe(struct platform_de
 
 	dev_dbg(&pdev->dev, "probe");
 
+	memset(&vimc->mdev, 0, sizeof(vimc->mdev));
+
 	/* Create platform_device for each entity in the topology*/
 	vimc->subdevs = devm_kcalloc(&vimc->pdev.dev, vimc->pipe_cfg->num_ents,
 				     sizeof(*vimc->subdevs), GFP_KERNEL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/vimc/vimc-streamer.c linux-libre-5.1.21-gnu/drivers/media/platform/vimc/vimc-streamer.c
--- linux-libre-5.1-gnu/drivers/media/platform/vimc/vimc-streamer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/vimc/vimc-streamer.c	2019-07-28 02:28:39.000000000 -0400
@@ -120,7 +120,6 @@ static int vimc_streamer_thread(void *da
 	int i;
 
 	set_freezable();
-	set_current_state(TASK_UNINTERRUPTIBLE);
 
 	for (;;) {
 		try_to_freeze();
@@ -137,6 +136,7 @@ static int vimc_streamer_thread(void *da
 				break;
 		}
 		//wait for 60hz
+		set_current_state(TASK_UNINTERRUPTIBLE);
 		schedule_timeout(HZ / 60);
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/platform/vivid/vivid-vid-cap.c linux-libre-5.1.21-gnu/drivers/media/platform/vivid/vivid-vid-cap.c
--- linux-libre-5.1-gnu/drivers/media/platform/vivid/vivid-vid-cap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/platform/vivid/vivid-vid-cap.c	2019-07-28 02:28:39.000000000 -0400
@@ -1007,7 +1007,7 @@ int vivid_vid_cap_s_selection(struct fil
 		v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
 		if (dev->bitmap_cap && (compose->width != s->r.width ||
 					compose->height != s->r.height)) {
-			kfree(dev->bitmap_cap);
+			vfree(dev->bitmap_cap);
 			dev->bitmap_cap = NULL;
 		}
 		*compose = s->r;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/radio/wl128x/fmdrv_common.c linux-libre-5.1.21-gnu/drivers/media/radio/wl128x/fmdrv_common.c
--- linux-libre-5.1-gnu/drivers/media/radio/wl128x/fmdrv_common.c	2019-05-05 21:30:38.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/radio/wl128x/fmdrv_common.c	2019-07-28 13:32:49.000000000 -0400
@@ -489,7 +489,8 @@ int fmc_send_cmd(struct fmdev *fmdev, u8
 		return -EIO;
 	}
 	/* Send response data to caller */
-	if (response != NULL && response_len != NULL && evt_hdr->dlen) {
+	if (response != NULL && response_len != NULL && evt_hdr->dlen &&
+	    evt_hdr->dlen <= payload_len) {
 		/* Skip header info and copy only response data */
 		skb_pull(skb, sizeof(struct fm_event_msg_hdr));
 		memcpy(response, skb->data, evt_hdr->dlen);
@@ -583,6 +584,8 @@ static void fm_irq_handle_flag_getcmd_re
 		return;
 
 	fm_evt_hdr = (void *)skb->data;
+	if (fm_evt_hdr->dlen > sizeof(fmdev->irq_info.flag))
+		return;
 
 	/* Skip header info and copy only response data */
 	skb_pull(skb, sizeof(struct fm_event_msg_hdr));
@@ -1308,7 +1311,7 @@ static int load_default_rx_configuration
 static int fm_power_up(struct fmdev *fmdev, u8 mode)
 {
 	u16 payload;
-	__be16 asic_id, asic_ver;
+	__be16 asic_id = 0, asic_ver = 0;
 	int resp_len, ret;
 	u8 fw_name[50];
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/radio/wl128x/fmdrv_v4l2.c linux-libre-5.1.21-gnu/drivers/media/radio/wl128x/fmdrv_v4l2.c
--- linux-libre-5.1-gnu/drivers/media/radio/wl128x/fmdrv_v4l2.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/radio/wl128x/fmdrv_v4l2.c	2019-07-28 02:28:39.000000000 -0400
@@ -550,6 +550,7 @@ int fm_v4l2_init_video_device(struct fmd
 
 	/* Register with V4L2 subsystem as RADIO device */
 	if (video_register_device(&gradio_dev, VFL_TYPE_RADIO, radio_nr)) {
+		v4l2_device_unregister(&fmdev->v4l2_dev);
 		fmerr("Could not register video device\n");
 		return -ENOMEM;
 	}
@@ -563,6 +564,8 @@ int fm_v4l2_init_video_device(struct fmd
 	if (ret < 0) {
 		fmerr("(fmdev): Can't init ctrl handler\n");
 		v4l2_ctrl_handler_free(&fmdev->ctrl_handler);
+		video_unregister_device(fmdev->radio_dev);
+		v4l2_device_unregister(&fmdev->v4l2_dev);
 		return -EBUSY;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/rc/ir-spi.c linux-libre-5.1.21-gnu/drivers/media/rc/ir-spi.c
--- linux-libre-5.1-gnu/drivers/media/rc/ir-spi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/rc/ir-spi.c	2019-07-28 02:28:39.000000000 -0400
@@ -161,6 +161,7 @@ static const struct of_device_id ir_spi_
 	{ .compatible = "ir-spi-led" },
 	{},
 };
+MODULE_DEVICE_TABLE(of, ir_spi_of_match);
 
 static struct spi_driver ir_spi_driver = {
 	.probe = ir_spi_probe,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/rc/serial_ir.c linux-libre-5.1.21-gnu/drivers/media/rc/serial_ir.c
--- linux-libre-5.1-gnu/drivers/media/rc/serial_ir.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/rc/serial_ir.c	2019-07-28 02:28:39.000000000 -0400
@@ -773,8 +773,6 @@ static void serial_ir_exit(void)
 
 static int __init serial_ir_init_module(void)
 {
-	int result;
-
 	switch (type) {
 	case IR_HOMEBREW:
 	case IR_IRDEO:
@@ -802,12 +800,7 @@ static int __init serial_ir_init_module(
 	if (sense != -1)
 		sense = !!sense;
 
-	result = serial_ir_init();
-	if (!result)
-		return 0;
-
-	serial_ir_exit();
-	return result;
+	return serial_ir_init();
 }
 
 static void __exit serial_ir_exit_module(void)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/au0828/au0828-video.c linux-libre-5.1.21-gnu/drivers/media/usb/au0828/au0828-video.c
--- linux-libre-5.1-gnu/drivers/media/usb/au0828/au0828-video.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/au0828/au0828-video.c	2019-07-28 02:28:39.000000000 -0400
@@ -758,6 +758,9 @@ static int au0828_analog_stream_enable(s
 
 	dprintk(1, "au0828_analog_stream_enable called\n");
 
+	if (test_bit(DEV_DISCONNECTED, &d->dev_state))
+		return -ENODEV;
+
 	iface = usb_ifnum_to_if(d->usbdev, 0);
 	if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 		dprintk(1, "Changing intf#0 to alt 5\n");
@@ -839,9 +842,9 @@ int au0828_start_analog_streaming(struct
 			return rc;
 		}
 
+		v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
+
 		if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
-			v4l2_device_call_all(&dev->v4l2_dev, 0, video,
-						s_stream, 1);
 			dev->vid_timeout_running = 1;
 			mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 		} else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
@@ -861,10 +864,11 @@ static void au0828_stop_streaming(struct
 
 	dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 
-	if (dev->streaming_users-- == 1)
+	if (dev->streaming_users-- == 1) {
 		au0828_uninit_isoc(dev);
+		v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
+	}
 
-	v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 	dev->vid_timeout_running = 0;
 	del_timer_sync(&dev->vid_timeout);
 
@@ -893,8 +897,10 @@ void au0828_stop_vbi_streaming(struct vb
 	dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 		dev->streaming_users);
 
-	if (dev->streaming_users-- == 1)
+	if (dev->streaming_users-- == 1) {
 		au0828_uninit_isoc(dev);
+		v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
+	}
 
 	spin_lock_irqsave(&dev->slock, flags);
 	if (dev->isoc_ctl.vbi_buf != NULL) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/cpia2/cpia2_v4l.c linux-libre-5.1.21-gnu/drivers/media/usb/cpia2/cpia2_v4l.c
--- linux-libre-5.1-gnu/drivers/media/usb/cpia2/cpia2_v4l.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/cpia2/cpia2_v4l.c	2019-07-28 02:28:39.000000000 -0400
@@ -1240,8 +1240,7 @@ static int __init cpia2_init(void)
 	LOG("%s v%s\n",
 	    ABOUT, CPIA_VERSION);
 	check_parameters();
-	cpia2_usb_init();
-	return 0;
+	return cpia2_usb_init();
 }
 
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/dvb-usb/dvb-usb-init.c linux-libre-5.1.21-gnu/drivers/media/usb/dvb-usb/dvb-usb-init.c
--- linux-libre-5.1-gnu/drivers/media/usb/dvb-usb/dvb-usb-init.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/dvb-usb/dvb-usb-init.c	2019-07-28 02:28:39.000000000 -0400
@@ -287,12 +287,15 @@ EXPORT_SYMBOL(dvb_usb_device_init);
 void dvb_usb_device_exit(struct usb_interface *intf)
 {
 	struct dvb_usb_device *d = usb_get_intfdata(intf);
-	const char *name = "generic DVB-USB module";
+	const char *default_name = "generic DVB-USB module";
+	char name[40];
 
 	usb_set_intfdata(intf, NULL);
 	if (d != NULL && d->desc != NULL) {
-		name = d->desc->name;
+		strscpy(name, d->desc->name, sizeof(name));
 		dvb_usb_exit(d);
+	} else {
+		strscpy(name, default_name, sizeof(name));
 	}
 	info("%s successfully deinitialized and disconnected.", name);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/dvb-usb-v2/dvbsky.c linux-libre-5.1.21-gnu/drivers/media/usb/dvb-usb-v2/dvbsky.c
--- linux-libre-5.1-gnu/drivers/media/usb/dvb-usb-v2/dvbsky.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/dvb-usb-v2/dvbsky.c	2019-07-28 02:28:39.000000000 -0400
@@ -615,16 +615,18 @@ static int dvbsky_init(struct dvb_usb_de
 	return 0;
 }
 
-static void dvbsky_exit(struct dvb_usb_device *d)
+static int dvbsky_frontend_detach(struct dvb_usb_adapter *adap)
 {
+	struct dvb_usb_device *d = adap_to_d(adap);
 	struct dvbsky_state *state = d_to_priv(d);
-	struct dvb_usb_adapter *adap = &d->adapter[0];
+
+	dev_dbg(&d->udev->dev, "%s: adap=%d\n", __func__, adap->id);
 
 	dvb_module_release(state->i2c_client_tuner);
 	dvb_module_release(state->i2c_client_demod);
 	dvb_module_release(state->i2c_client_ci);
 
-	adap->fe[0] = NULL;
+	return 0;
 }
 
 /* DVB USB Driver stuff */
@@ -640,11 +642,11 @@ static struct dvb_usb_device_properties
 
 	.i2c_algo         = &dvbsky_i2c_algo,
 	.frontend_attach  = dvbsky_s960_attach,
+	.frontend_detach  = dvbsky_frontend_detach,
 	.init             = dvbsky_init,
 	.get_rc_config    = dvbsky_get_rc_config,
 	.streaming_ctrl   = dvbsky_streaming_ctrl,
 	.identify_state	  = dvbsky_identify_state,
-	.exit             = dvbsky_exit,
 	.read_mac_address = dvbsky_read_mac_addr,
 
 	.num_adapters = 1,
@@ -667,11 +669,11 @@ static struct dvb_usb_device_properties
 
 	.i2c_algo         = &dvbsky_i2c_algo,
 	.frontend_attach  = dvbsky_s960c_attach,
+	.frontend_detach  = dvbsky_frontend_detach,
 	.init             = dvbsky_init,
 	.get_rc_config    = dvbsky_get_rc_config,
 	.streaming_ctrl   = dvbsky_streaming_ctrl,
 	.identify_state	  = dvbsky_identify_state,
-	.exit             = dvbsky_exit,
 	.read_mac_address = dvbsky_read_mac_addr,
 
 	.num_adapters = 1,
@@ -694,11 +696,11 @@ static struct dvb_usb_device_properties
 
 	.i2c_algo         = &dvbsky_i2c_algo,
 	.frontend_attach  = dvbsky_t680c_attach,
+	.frontend_detach  = dvbsky_frontend_detach,
 	.init             = dvbsky_init,
 	.get_rc_config    = dvbsky_get_rc_config,
 	.streaming_ctrl   = dvbsky_streaming_ctrl,
 	.identify_state	  = dvbsky_identify_state,
-	.exit             = dvbsky_exit,
 	.read_mac_address = dvbsky_read_mac_addr,
 
 	.num_adapters = 1,
@@ -721,11 +723,11 @@ static struct dvb_usb_device_properties
 
 	.i2c_algo         = &dvbsky_i2c_algo,
 	.frontend_attach  = dvbsky_t330_attach,
+	.frontend_detach  = dvbsky_frontend_detach,
 	.init             = dvbsky_init,
 	.get_rc_config    = dvbsky_get_rc_config,
 	.streaming_ctrl   = dvbsky_streaming_ctrl,
 	.identify_state	  = dvbsky_identify_state,
-	.exit             = dvbsky_exit,
 	.read_mac_address = dvbsky_read_mac_addr,
 
 	.num_adapters = 1,
@@ -748,11 +750,11 @@ static struct dvb_usb_device_properties
 
 	.i2c_algo         = &dvbsky_i2c_algo,
 	.frontend_attach  = dvbsky_mygica_t230c_attach,
+	.frontend_detach  = dvbsky_frontend_detach,
 	.init             = dvbsky_init,
 	.get_rc_config    = dvbsky_get_rc_config,
 	.streaming_ctrl   = dvbsky_streaming_ctrl,
 	.identify_state	  = dvbsky_identify_state,
-	.exit             = dvbsky_exit,
 
 	.num_adapters = 1,
 	.adapter = {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/go7007/go7007-fw.c linux-libre-5.1.21-gnu/drivers/media/usb/go7007/go7007-fw.c
--- linux-libre-5.1-gnu/drivers/media/usb/go7007/go7007-fw.c	2019-05-05 21:29:51.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/go7007/go7007-fw.c	2019-07-28 13:31:56.000000000 -0400
@@ -1499,8 +1499,8 @@ static int modet_to_package(struct go700
 	return cnt;
 }
 
-static int do_special(struct go7007 *go, u16 type, __le16 *code, int space,
-			int *framelen)
+static noinline_for_stack int do_special(struct go7007 *go, u16 type,
+					 __le16 *code, int space, int *framelen)
 {
 	switch (type) {
 	case SPECIAL_FRM_HEAD:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/gspca/gspca.c linux-libre-5.1.21-gnu/drivers/media/usb/gspca/gspca.c
--- linux-libre-5.1-gnu/drivers/media/usb/gspca/gspca.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/gspca/gspca.c	2019-07-28 02:28:39.000000000 -0400
@@ -294,7 +294,7 @@ static void fill_frame(struct gspca_dev
 		/* check the packet status and length */
 		st = urb->iso_frame_desc[i].status;
 		if (st) {
-			pr_err("ISOC data error: [%d] len=%d, status=%d\n",
+			gspca_dbg(gspca_dev, D_PACK, "ISOC data error: [%d] len=%d, status=%d\n",
 			       i, len, st);
 			gspca_dev->last_packet_type = DISCARD_PACKET;
 			continue;
@@ -314,6 +314,8 @@ static void fill_frame(struct gspca_dev
 	}
 
 resubmit:
+	if (!gspca_dev->streaming)
+		return;
 	/* resubmit the URB */
 	st = usb_submit_urb(urb, GFP_ATOMIC);
 	if (st < 0)
@@ -330,7 +332,7 @@ static void isoc_irq(struct urb *urb)
 	struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context;
 
 	gspca_dbg(gspca_dev, D_PACK, "isoc irq\n");
-	if (!vb2_start_streaming_called(&gspca_dev->queue))
+	if (!gspca_dev->streaming)
 		return;
 	fill_frame(gspca_dev, urb);
 }
@@ -344,7 +346,7 @@ static void bulk_irq(struct urb *urb)
 	int st;
 
 	gspca_dbg(gspca_dev, D_PACK, "bulk irq\n");
-	if (!vb2_start_streaming_called(&gspca_dev->queue))
+	if (!gspca_dev->streaming)
 		return;
 	switch (urb->status) {
 	case 0:
@@ -367,6 +369,8 @@ static void bulk_irq(struct urb *urb)
 				urb->actual_length);
 
 resubmit:
+	if (!gspca_dev->streaming)
+		return;
 	/* resubmit the URB */
 	if (gspca_dev->cam.bulk_nurbs != 0) {
 		st = usb_submit_urb(urb, GFP_ATOMIC);
@@ -1638,6 +1642,8 @@ void gspca_disconnect(struct usb_interfa
 
 	mutex_lock(&gspca_dev->usb_lock);
 	gspca_dev->present = false;
+	destroy_urbs(gspca_dev);
+	gspca_input_destroy_urb(gspca_dev);
 
 	vb2_queue_error(&gspca_dev->queue);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/hdpvr/hdpvr-video.c linux-libre-5.1.21-gnu/drivers/media/usb/hdpvr/hdpvr-video.c
--- linux-libre-5.1-gnu/drivers/media/usb/hdpvr/hdpvr-video.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/hdpvr/hdpvr-video.c	2019-07-28 02:28:39.000000000 -0400
@@ -439,7 +439,7 @@ static ssize_t hdpvr_read(struct file *f
 	/* wait for the first buffer */
 	if (!(file->f_flags & O_NONBLOCK)) {
 		if (wait_event_interruptible(dev->wait_data,
-					     hdpvr_get_next_buffer(dev)))
+					     !list_empty_careful(&dev->rec_buff_list)))
 			return -ERESTARTSYS;
 	}
 
@@ -465,10 +465,17 @@ static ssize_t hdpvr_read(struct file *f
 				goto err;
 			}
 			if (!err) {
-				v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
-					"timeout: restart streaming\n");
+				v4l2_info(&dev->v4l2_dev,
+					  "timeout: restart streaming\n");
+				mutex_lock(&dev->io_mutex);
 				hdpvr_stop_streaming(dev);
-				msecs_to_jiffies(4000);
+				mutex_unlock(&dev->io_mutex);
+				/*
+				 * The FW needs about 4 seconds after streaming
+				 * stopped before it is ready to restart
+				 * streaming.
+				 */
+				msleep(4000);
 				err = hdpvr_start_streaming(dev);
 				if (err) {
 					ret = err;
@@ -1133,9 +1140,7 @@ static void hdpvr_device_release(struct
 	struct hdpvr_device *dev = video_get_drvdata(vdev);
 
 	hdpvr_delete(dev);
-	mutex_lock(&dev->io_mutex);
 	flush_work(&dev->worker);
-	mutex_unlock(&dev->io_mutex);
 
 	v4l2_device_unregister(&dev->v4l2_dev);
 	v4l2_ctrl_handler_free(&dev->hdl);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/pvrusb2/pvrusb2-hdw.c linux-libre-5.1.21-gnu/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
--- linux-libre-5.1-gnu/drivers/media/usb/pvrusb2/pvrusb2-hdw.c	2019-05-05 21:29:40.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/pvrusb2/pvrusb2-hdw.c	2019-07-28 13:31:42.000000000 -0400
@@ -666,6 +666,8 @@ static int ctrl_get_input(struct pvr2_ct
 
 static int ctrl_check_input(struct pvr2_ctrl *cptr,int v)
 {
+	if (v < 0 || v > PVR2_CVAL_INPUT_MAX)
+		return 0;
 	return ((1 << v) & cptr->hdw->input_allowed_mask) != 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/pvrusb2/pvrusb2-hdw.h linux-libre-5.1.21-gnu/drivers/media/usb/pvrusb2/pvrusb2-hdw.h
--- linux-libre-5.1-gnu/drivers/media/usb/pvrusb2/pvrusb2-hdw.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/pvrusb2/pvrusb2-hdw.h	2019-07-28 02:28:39.000000000 -0400
@@ -50,6 +50,7 @@
 #define PVR2_CVAL_INPUT_COMPOSITE 2
 #define PVR2_CVAL_INPUT_SVIDEO 3
 #define PVR2_CVAL_INPUT_RADIO 4
+#define PVR2_CVAL_INPUT_MAX PVR2_CVAL_INPUT_RADIO
 
 enum pvr2_config {
 	pvr2_config_empty,    /* No configuration */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/siano/smsusb.c linux-libre-5.1.21-gnu/drivers/media/usb/siano/smsusb.c
--- linux-libre-5.1-gnu/drivers/media/usb/siano/smsusb.c	2019-05-05 21:28:28.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/siano/smsusb.c	2019-07-28 13:30:19.000000000 -0400
@@ -400,6 +400,7 @@ static int smsusb_init_device(struct usb
 	struct smsusb_device_t *dev;
 	void *mdev;
 	int i, rc;
+	int align = 0;
 
 	/* create device object */
 	dev = kzalloc(sizeof(struct smsusb_device_t), GFP_KERNEL);
@@ -411,6 +412,24 @@ static int smsusb_init_device(struct usb
 	dev->udev = interface_to_usbdev(intf);
 	dev->state = SMSUSB_DISCONNECTED;
 
+	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+		struct usb_endpoint_descriptor *desc =
+				&intf->cur_altsetting->endpoint[i].desc;
+
+		if (desc->bEndpointAddress & USB_DIR_IN) {
+			dev->in_ep = desc->bEndpointAddress;
+			align = usb_endpoint_maxp(desc) - sizeof(struct sms_msg_hdr);
+		} else {
+			dev->out_ep = desc->bEndpointAddress;
+		}
+	}
+
+	pr_debug("in_ep = %02x, out_ep = %02x\n", dev->in_ep, dev->out_ep);
+	if (!dev->in_ep || !dev->out_ep || align < 0) {  /* Missing endpoints? */
+		smsusb_term_device(intf);
+		return -ENODEV;
+	}
+
 	params.device_type = sms_get_board(board_id)->type;
 
 	switch (params.device_type) {
@@ -425,24 +444,12 @@ static int smsusb_init_device(struct usb
 		/* fall-thru */
 	default:
 		dev->buffer_size = USB2_BUFFER_SIZE;
-		dev->response_alignment =
-		    le16_to_cpu(dev->udev->ep_in[1]->desc.wMaxPacketSize) -
-		    sizeof(struct sms_msg_hdr);
+		dev->response_alignment = align;
 
 		params.flags |= SMS_DEVICE_FAMILY2;
 		break;
 	}
 
-	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
-		if (intf->cur_altsetting->endpoint[i].desc. bEndpointAddress & USB_DIR_IN)
-			dev->in_ep = intf->cur_altsetting->endpoint[i].desc.bEndpointAddress;
-		else
-			dev->out_ep = intf->cur_altsetting->endpoint[i].desc.bEndpointAddress;
-	}
-
-	pr_debug("in_ep = %02x, out_ep = %02x\n",
-		dev->in_ep, dev->out_ep);
-
 	params.device = &dev->udev->dev;
 	params.usb_device = dev->udev;
 	params.buffer_size = dev->buffer_size;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/uvc/uvc_ctrl.c linux-libre-5.1.21-gnu/drivers/media/usb/uvc/uvc_ctrl.c
--- linux-libre-5.1-gnu/drivers/media/usb/uvc/uvc_ctrl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/uvc/uvc_ctrl.c	2019-07-28 02:28:39.000000000 -0400
@@ -2350,7 +2350,9 @@ void uvc_ctrl_cleanup_device(struct uvc_
 	struct uvc_entity *entity;
 	unsigned int i;
 
-	cancel_work_sync(&dev->async_ctrl.work);
+	/* Can be uninitialized if we are aborting on probe error. */
+	if (dev->async_ctrl.work.func)
+		cancel_work_sync(&dev->async_ctrl.work);
 
 	/* Free controls and control mappings for all entities. */
 	list_for_each_entry(entity, &dev->entities, list) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/usb/zr364xx/zr364xx.c linux-libre-5.1.21-gnu/drivers/media/usb/zr364xx/zr364xx.c
--- linux-libre-5.1-gnu/drivers/media/usb/zr364xx/zr364xx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/usb/zr364xx/zr364xx.c	2019-07-28 02:28:39.000000000 -0400
@@ -703,7 +703,8 @@ static int zr364xx_vidioc_querycap(struc
 	struct zr364xx_camera *cam = video_drvdata(file);
 
 	strscpy(cap->driver, DRIVER_DESC, sizeof(cap->driver));
-	strscpy(cap->card, cam->udev->product, sizeof(cap->card));
+	if (cam->udev->product)
+		strscpy(cap->card, cam->udev->product, sizeof(cap->card));
 	strscpy(cap->bus_info, dev_name(&cam->udev->dev),
 		sizeof(cap->bus_info));
 	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/v4l2-core/v4l2-ctrls.c linux-libre-5.1.21-gnu/drivers/media/v4l2-core/v4l2-ctrls.c
--- linux-libre-5.1-gnu/drivers/media/v4l2-core/v4l2-ctrls.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/v4l2-core/v4l2-ctrls.c	2019-07-28 02:28:39.000000000 -0400
@@ -2148,15 +2148,6 @@ static int handler_new_ref(struct v4l2_c
 	if (size_extra_req)
 		new_ref->p_req.p = &new_ref[1];
 
-	if (ctrl->handler == hdl) {
-		/* By default each control starts in a cluster of its own.
-		   new_ref->ctrl is basically a cluster array with one
-		   element, so that's perfect to use as the cluster pointer.
-		   But only do this for the handler that owns the control. */
-		ctrl->cluster = &new_ref->ctrl;
-		ctrl->ncontrols = 1;
-	}
-
 	INIT_LIST_HEAD(&new_ref->node);
 
 	mutex_lock(hdl->lock);
@@ -2189,6 +2180,15 @@ insert_in_hash:
 	hdl->buckets[bucket] = new_ref;
 	if (ctrl_ref)
 		*ctrl_ref = new_ref;
+	if (ctrl->handler == hdl) {
+		/* By default each control starts in a cluster of its own.
+		 * new_ref->ctrl is basically a cluster array with one
+		 * element, so that's perfect to use as the cluster pointer.
+		 * But only do this for the handler that owns the control.
+		 */
+		ctrl->cluster = &new_ref->ctrl;
+		ctrl->ncontrols = 1;
+	}
 
 unlock:
 	mutex_unlock(hdl->lock);
@@ -2365,16 +2365,15 @@ struct v4l2_ctrl *v4l2_ctrl_new_custom(s
 		v4l2_ctrl_fill(cfg->id, &name, &type, &min, &max, &step,
 								&def, &flags);
 
-	is_menu = (cfg->type == V4L2_CTRL_TYPE_MENU ||
-		   cfg->type == V4L2_CTRL_TYPE_INTEGER_MENU);
+	is_menu = (type == V4L2_CTRL_TYPE_MENU ||
+		   type == V4L2_CTRL_TYPE_INTEGER_MENU);
 	if (is_menu)
 		WARN_ON(step);
 	else
 		WARN_ON(cfg->menu_skip_mask);
-	if (cfg->type == V4L2_CTRL_TYPE_MENU && qmenu == NULL)
+	if (type == V4L2_CTRL_TYPE_MENU && !qmenu) {
 		qmenu = v4l2_ctrl_get_menu(cfg->id);
-	else if (cfg->type == V4L2_CTRL_TYPE_INTEGER_MENU &&
-		 qmenu_int == NULL) {
+	} else if (type == V4L2_CTRL_TYPE_INTEGER_MENU && !qmenu_int) {
 		handler_set_err(hdl, -EINVAL);
 		return NULL;
 	}
@@ -3899,18 +3898,19 @@ void v4l2_ctrl_request_complete(struct m
 }
 EXPORT_SYMBOL(v4l2_ctrl_request_complete);
 
-void v4l2_ctrl_request_setup(struct media_request *req,
+int v4l2_ctrl_request_setup(struct media_request *req,
 			     struct v4l2_ctrl_handler *main_hdl)
 {
 	struct media_request_object *obj;
 	struct v4l2_ctrl_handler *hdl;
 	struct v4l2_ctrl_ref *ref;
+	int ret = 0;
 
 	if (!req || !main_hdl)
-		return;
+		return 0;
 
 	if (WARN_ON(req->state != MEDIA_REQUEST_STATE_QUEUED))
-		return;
+		return -EBUSY;
 
 	/*
 	 * Note that it is valid if nothing was found. It means
@@ -3919,10 +3919,10 @@ void v4l2_ctrl_request_setup(struct medi
 	 */
 	obj = media_request_object_find(req, &req_ops, main_hdl);
 	if (!obj)
-		return;
+		return 0;
 	if (obj->completed) {
 		media_request_object_put(obj);
-		return;
+		return -EBUSY;
 	}
 	hdl = container_of(obj, struct v4l2_ctrl_handler, req_obj);
 
@@ -3990,12 +3990,15 @@ void v4l2_ctrl_request_setup(struct medi
 				update_from_auto_cluster(master);
 		}
 
-		try_or_set_cluster(NULL, master, true, 0);
-
+		ret = try_or_set_cluster(NULL, master, true, 0);
 		v4l2_ctrl_unlock(master);
+
+		if (ret)
+			break;
 	}
 
 	media_request_object_put(obj);
+	return ret;
 }
 EXPORT_SYMBOL(v4l2_ctrl_request_setup);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/media/v4l2-core/v4l2-fwnode.c linux-libre-5.1.21-gnu/drivers/media/v4l2-core/v4l2-fwnode.c
--- linux-libre-5.1-gnu/drivers/media/v4l2-core/v4l2-fwnode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/media/v4l2-core/v4l2-fwnode.c	2019-07-28 02:28:39.000000000 -0400
@@ -163,7 +163,7 @@ static int v4l2_fwnode_endpoint_parse_cs
 		}
 
 		if (use_default_lane_mapping)
-			pr_debug("using default lane mapping\n");
+			pr_debug("no lane mapping given, using defaults\n");
 	}
 
 	rval = fwnode_property_read_u32_array(fwnode, "data-lanes", NULL, 0);
@@ -175,6 +175,10 @@ static int v4l2_fwnode_endpoint_parse_cs
 					       num_data_lanes);
 
 		have_data_lanes = true;
+		if (use_default_lane_mapping) {
+			pr_debug("data-lanes property exists; disabling default mapping\n");
+			use_default_lane_mapping = false;
+		}
 	}
 
 	for (i = 0; i < num_data_lanes; i++) {
@@ -225,6 +229,10 @@ static int v4l2_fwnode_endpoint_parse_cs
 	if (bus_type == V4L2_MBUS_CSI2_DPHY ||
 	    bus_type == V4L2_MBUS_CSI2_CPHY || lanes_used ||
 	    have_clk_lane || (flags & ~V4L2_MBUS_CSI2_CONTINUOUS_CLOCK)) {
+		/* Only D-PHY has a clock lane. */
+		unsigned int dfl_data_lane_index =
+			bus_type == V4L2_MBUS_CSI2_DPHY;
+
 		bus->flags = flags;
 		if (bus_type == V4L2_MBUS_UNKNOWN)
 			vep->bus_type = V4L2_MBUS_CSI2_DPHY;
@@ -233,7 +241,7 @@ static int v4l2_fwnode_endpoint_parse_cs
 		if (use_default_lane_mapping) {
 			bus->clock_lane = 0;
 			for (i = 0; i < num_data_lanes; i++)
-				bus->data_lanes[i] = 1 + i;
+				bus->data_lanes[i] = dfl_data_lane_index + i;
 		} else {
 			bus->clock_lane = clock_lane;
 			for (i = 0; i < num_data_lanes; i++)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/memory/tegra/mc.c linux-libre-5.1.21-gnu/drivers/memory/tegra/mc.c
--- linux-libre-5.1-gnu/drivers/memory/tegra/mc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/memory/tegra/mc.c	2019-07-28 02:28:39.000000000 -0400
@@ -282,7 +282,7 @@ static int tegra_mc_setup_latency_allowa
 	u32 value;
 
 	/* compute the number of MC clock cycles per tick */
-	tick = mc->tick * clk_get_rate(mc->clk);
+	tick = (unsigned long long)mc->tick * clk_get_rate(mc->clk);
 	do_div(tick, NSEC_PER_SEC);
 
 	value = readl(mc->regs + MC_EMEM_ARB_CFG);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/memstick/core/mspro_block.c linux-libre-5.1.21-gnu/drivers/memstick/core/mspro_block.c
--- linux-libre-5.1-gnu/drivers/memstick/core/mspro_block.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/memstick/core/mspro_block.c	2019-07-28 02:28:39.000000000 -0400
@@ -694,13 +694,13 @@ static void h_mspro_block_setup_cmd(stru
 
 /*** Data transfer ***/
 
-static int mspro_block_issue_req(struct memstick_dev *card, bool chunk)
+static int mspro_block_issue_req(struct memstick_dev *card)
 {
 	struct mspro_block_data *msb = memstick_get_drvdata(card);
 	u64 t_off;
 	unsigned int count;
 
-	while (chunk) {
+	while (true) {
 		msb->current_page = 0;
 		msb->current_seg = 0;
 		msb->seg_count = blk_rq_map_sg(msb->block_req->q,
@@ -709,6 +709,7 @@ static int mspro_block_issue_req(struct
 
 		if (!msb->seg_count) {
 			unsigned int bytes = blk_rq_cur_bytes(msb->block_req);
+			bool chunk;
 
 			chunk = blk_update_request(msb->block_req,
 							BLK_STS_RESOURCE,
@@ -718,7 +719,7 @@ static int mspro_block_issue_req(struct
 			__blk_mq_end_request(msb->block_req,
 						BLK_STS_RESOURCE);
 			msb->block_req = NULL;
-			break;
+			return -EAGAIN;
 		}
 
 		t_off = blk_rq_pos(msb->block_req);
@@ -735,8 +736,6 @@ static int mspro_block_issue_req(struct
 		memstick_new_req(card->host);
 		return 0;
 	}
-
-	return 1;
 }
 
 static int mspro_block_complete_req(struct memstick_dev *card, int error)
@@ -779,7 +778,7 @@ static int mspro_block_complete_req(stru
 		chunk = blk_update_request(msb->block_req,
 				errno_to_blk_status(error), t_len);
 		if (chunk) {
-			error = mspro_block_issue_req(card, chunk);
+			error = mspro_block_issue_req(card);
 			if (!error)
 				goto out;
 		} else {
@@ -849,7 +848,7 @@ static blk_status_t mspro_queue_rq(struc
 	msb->block_req = bd->rq;
 	blk_mq_start_request(bd->rq);
 
-	if (mspro_block_issue_req(card, true))
+	if (mspro_block_issue_req(card))
 		msb->block_req = NULL;
 
 	spin_unlock_irq(&msb->q_lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mfd/intel-lpss.c linux-libre-5.1.21-gnu/drivers/mfd/intel-lpss.c
--- linux-libre-5.1-gnu/drivers/mfd/intel-lpss.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mfd/intel-lpss.c	2019-07-28 02:28:39.000000000 -0400
@@ -273,6 +273,9 @@ static void intel_lpss_init_dev(const st
 {
 	u32 value = LPSS_PRIV_SSP_REG_DIS_DMA_FIN;
 
+	/* Set the device in reset state */
+	writel(0, lpss->priv + LPSS_PRIV_RESETS);
+
 	intel_lpss_deassert_reset(lpss);
 
 	intel_lpss_set_remap_addr(lpss);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mfd/tps65912-spi.c linux-libre-5.1.21-gnu/drivers/mfd/tps65912-spi.c
--- linux-libre-5.1-gnu/drivers/mfd/tps65912-spi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mfd/tps65912-spi.c	2019-07-28 02:28:39.000000000 -0400
@@ -27,6 +27,7 @@ static const struct of_device_id tps6591
 	{ .compatible = "ti,tps65912", },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, tps65912_spi_of_match_table);
 
 static int tps65912_spi_probe(struct spi_device *spi)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mfd/twl6040.c linux-libre-5.1.21-gnu/drivers/mfd/twl6040.c
--- linux-libre-5.1-gnu/drivers/mfd/twl6040.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mfd/twl6040.c	2019-07-28 02:28:39.000000000 -0400
@@ -322,8 +322,19 @@ int twl6040_power(struct twl6040 *twl604
 			}
 		}
 
+		/*
+		 * Register access can produce errors after power-up unless we
+		 * wait at least 8ms based on measurements on duovero.
+		 */
+		usleep_range(10000, 12000);
+
 		/* Sync with the HW */
-		regcache_sync(twl6040->regmap);
+		ret = regcache_sync(twl6040->regmap);
+		if (ret) {
+			dev_err(twl6040->dev, "Failed to sync with the HW: %i\n",
+				ret);
+			goto out;
+		}
 
 		/* Default PLL configuration after power up */
 		twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/fastrpc.c linux-libre-5.1.21-gnu/drivers/misc/fastrpc.c
--- linux-libre-5.1-gnu/drivers/misc/fastrpc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/fastrpc.c	2019-07-28 02:28:39.000000000 -0400
@@ -667,8 +667,16 @@ static int fastrpc_get_args(u32 kernel,
 		pages[i].size = roundup(len, PAGE_SIZE);
 
 		if (ctx->maps[i]) {
+			struct vm_area_struct *vma = NULL;
+
 			rpra[i].pv = (u64) ctx->args[i].ptr;
 			pages[i].addr = ctx->maps[i]->phys;
+
+			vma = find_vma(current->mm, ctx->args[i].ptr);
+			if (vma)
+				pages[i].addr += ctx->args[i].ptr -
+						 vma->vm_start;
+
 		} else {
 			rlen -= ALIGN(args, FASTRPC_ALIGN) - args;
 			args = ALIGN(args, FASTRPC_ALIGN);
@@ -782,6 +790,9 @@ static int fastrpc_internal_invoke(struc
 		if (err)
 			goto bail;
 	}
+
+	/* make sure that all CPU memory writes are seen by DSP */
+	dma_wmb();
 	/* Send invoke buffer to remote dsp */
 	err = fastrpc_invoke_send(fl->sctx, ctx, kernel, handle);
 	if (err)
@@ -798,6 +809,8 @@ static int fastrpc_internal_invoke(struc
 		goto bail;
 
 	if (ctx->nscalars) {
+		/* make sure that all memory writes by DSP are seen by CPU */
+		dma_rmb();
 		/* populate all the output buffers with results */
 		err = fastrpc_put_args(ctx, kernel);
 		if (err)
@@ -843,12 +856,12 @@ static int fastrpc_init_create_process(s
 
 	if (copy_from_user(&init, argp, sizeof(init))) {
 		err = -EFAULT;
-		goto bail;
+		goto err;
 	}
 
 	if (init.filelen > INIT_FILELEN_MAX) {
 		err = -EINVAL;
-		goto bail;
+		goto err;
 	}
 
 	inbuf.pgid = fl->tgid;
@@ -862,17 +875,15 @@ static int fastrpc_init_create_process(s
 	if (init.filelen && init.filefd) {
 		err = fastrpc_map_create(fl, init.filefd, init.filelen, &map);
 		if (err)
-			goto bail;
+			goto err;
 	}
 
 	memlen = ALIGN(max(INIT_FILELEN_MAX, (int)init.filelen * 4),
 		       1024 * 1024);
 	err = fastrpc_buf_alloc(fl, fl->sctx->dev, memlen,
 				&imem);
-	if (err) {
-		fastrpc_map_put(map);
-		goto bail;
-	}
+	if (err)
+		goto err_alloc;
 
 	fl->init_mem = imem;
 	args[0].ptr = (u64)(uintptr_t)&inbuf;
@@ -908,13 +919,24 @@ static int fastrpc_init_create_process(s
 
 	err = fastrpc_internal_invoke(fl, true, FASTRPC_INIT_HANDLE,
 				      sc, args);
+	if (err)
+		goto err_invoke;
 
-	if (err) {
+	kfree(args);
+
+	return 0;
+
+err_invoke:
+	fl->init_mem = NULL;
+	fastrpc_buf_free(imem);
+err_alloc:
+	if (map) {
+		spin_lock(&fl->lock);
+		list_del(&map->node);
+		spin_unlock(&fl->lock);
 		fastrpc_map_put(map);
-		fastrpc_buf_free(imem);
 	}
-
-bail:
+err:
 	kfree(args);
 
 	return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/genwqe/card_dev.c linux-libre-5.1.21-gnu/drivers/misc/genwqe/card_dev.c
--- linux-libre-5.1-gnu/drivers/misc/genwqe/card_dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/genwqe/card_dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -780,6 +780,8 @@ static int genwqe_pin_mem(struct genwqe_
 
 	if ((m->addr == 0x0) || (m->size == 0))
 		return -EINVAL;
+	if (m->size > ULONG_MAX - PAGE_SIZE - (m->addr & ~PAGE_MASK))
+		return -EINVAL;
 
 	map_addr = (m->addr & PAGE_MASK);
 	map_size = round_up(m->size + (m->addr & ~PAGE_MASK), PAGE_SIZE);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/genwqe/card_utils.c linux-libre-5.1.21-gnu/drivers/misc/genwqe/card_utils.c
--- linux-libre-5.1-gnu/drivers/misc/genwqe/card_utils.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/genwqe/card_utils.c	2019-07-28 02:28:39.000000000 -0400
@@ -586,6 +586,10 @@ int genwqe_user_vmap(struct genwqe_dev *
 	/* determine space needed for page_list. */
 	data = (unsigned long)uaddr;
 	offs = offset_in_page(data);
+	if (size > ULONG_MAX - PAGE_SIZE - offs) {
+		m->size = 0;	/* mark unused and not added */
+		return -EINVAL;
+	}
 	m->nr_pages = DIV_ROUND_UP(offs + size, PAGE_SIZE);
 
 	m->page_list = kcalloc(m->nr_pages,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/habanalabs/debugfs.c linux-libre-5.1.21-gnu/drivers/misc/habanalabs/debugfs.c
--- linux-libre-5.1-gnu/drivers/misc/habanalabs/debugfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/habanalabs/debugfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -459,41 +459,31 @@ static ssize_t mmu_write(struct file *fi
 	struct hl_debugfs_entry *entry = s->private;
 	struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
 	struct hl_device *hdev = dev_entry->hdev;
-	char kbuf[MMU_KBUF_SIZE], asid_kbuf[MMU_ASID_BUF_SIZE],
-		addr_kbuf[MMU_ADDR_BUF_SIZE];
+	char kbuf[MMU_KBUF_SIZE];
 	char *c;
 	ssize_t rc;
 
 	if (!hdev->mmu_enable)
 		return count;
 
-	memset(kbuf, 0, sizeof(kbuf));
-	memset(asid_kbuf, 0, sizeof(asid_kbuf));
-	memset(addr_kbuf, 0, sizeof(addr_kbuf));
-
+	if (count > sizeof(kbuf) - 1)
+		goto err;
 	if (copy_from_user(kbuf, buf, count))
 		goto err;
-
-	kbuf[MMU_KBUF_SIZE - 1] = 0;
+	kbuf[count] = 0;
 
 	c = strchr(kbuf, ' ');
 	if (!c)
 		goto err;
+	*c = '\0';
 
-	memcpy(asid_kbuf, kbuf, c - kbuf);
-
-	rc = kstrtouint(asid_kbuf, 10, &dev_entry->mmu_asid);
+	rc = kstrtouint(kbuf, 10, &dev_entry->mmu_asid);
 	if (rc)
 		goto err;
 
-	c = strstr(kbuf, " 0x");
-	if (!c)
+	if (strncmp(c+1, "0x", 2))
 		goto err;
-
-	c += 3;
-	memcpy(addr_kbuf, c, (kbuf + count) - c);
-
-	rc = kstrtoull(addr_kbuf, 16, &dev_entry->mmu_addr);
+	rc = kstrtoull(c+3, 16, &dev_entry->mmu_addr);
 	if (rc)
 		goto err;
 
@@ -525,10 +515,8 @@ static ssize_t hl_data_read32(struct fil
 	}
 
 	sprintf(tmp_buf, "0x%08x\n", val);
-	rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf,
-			strlen(tmp_buf) + 1);
-
-	return rc;
+	return simple_read_from_buffer(buf, count, ppos, tmp_buf,
+			strlen(tmp_buf));
 }
 
 static ssize_t hl_data_write32(struct file *f, const char __user *buf,
@@ -559,7 +547,6 @@ static ssize_t hl_get_power_state(struct
 	struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
 	struct hl_device *hdev = entry->hdev;
 	char tmp_buf[200];
-	ssize_t rc;
 	int i;
 
 	if (*ppos)
@@ -574,10 +561,8 @@ static ssize_t hl_get_power_state(struct
 
 	sprintf(tmp_buf,
 		"current power state: %d\n1 - D0\n2 - D3hot\n3 - Unknown\n", i);
-	rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf,
-			strlen(tmp_buf) + 1);
-
-	return rc;
+	return simple_read_from_buffer(buf, count, ppos, tmp_buf,
+			strlen(tmp_buf));
 }
 
 static ssize_t hl_set_power_state(struct file *f, const char __user *buf,
@@ -630,8 +615,8 @@ static ssize_t hl_i2c_data_read(struct f
 	}
 
 	sprintf(tmp_buf, "0x%02x\n", val);
-	rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf,
-			strlen(tmp_buf) + 1);
+	rc = simple_read_from_buffer(buf, count, ppos, tmp_buf,
+			strlen(tmp_buf));
 
 	return rc;
 }
@@ -720,18 +705,9 @@ static ssize_t hl_led2_write(struct file
 static ssize_t hl_device_read(struct file *f, char __user *buf,
 					size_t count, loff_t *ppos)
 {
-	char tmp_buf[200];
-	ssize_t rc;
-
-	if (*ppos)
-		return 0;
-
-	sprintf(tmp_buf,
-		"Valid values: disable, enable, suspend, resume, cpu_timeout\n");
-	rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf,
-			strlen(tmp_buf) + 1);
-
-	return rc;
+	static const char *help =
+		"Valid values: disable, enable, suspend, resume, cpu_timeout\n";
+	return simple_read_from_buffer(buf, count, ppos, help, strlen(help));
 }
 
 static ssize_t hl_device_write(struct file *f, const char __user *buf,
@@ -739,7 +715,7 @@ static ssize_t hl_device_write(struct fi
 {
 	struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
 	struct hl_device *hdev = entry->hdev;
-	char data[30];
+	char data[30] = {0};
 
 	/* don't allow partial writes */
 	if (*ppos != 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/habanalabs/device.c linux-libre-5.1.21-gnu/drivers/misc/habanalabs/device.c
--- linux-libre-5.1-gnu/drivers/misc/habanalabs/device.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/habanalabs/device.c	2019-07-28 02:28:39.000000000 -0400
@@ -498,11 +498,8 @@ disable_device:
 	return rc;
 }
 
-static void hl_device_hard_reset_pending(struct work_struct *work)
+static void device_kill_open_processes(struct hl_device *hdev)
 {
-	struct hl_device_reset_work *device_reset_work =
-		container_of(work, struct hl_device_reset_work, reset_work);
-	struct hl_device *hdev = device_reset_work->hdev;
 	u16 pending_total, pending_cnt;
 	struct task_struct *task = NULL;
 
@@ -537,6 +534,12 @@ static void hl_device_hard_reset_pending
 		}
 	}
 
+	/* We killed the open users, but because the driver cleans up after the
+	 * user contexts are closed (e.g. mmu mappings), we need to wait again
+	 * to make sure the cleaning phase is finished before continuing with
+	 * the reset
+	 */
+
 	pending_cnt = pending_total;
 
 	while ((atomic_read(&hdev->fd_open_cnt)) && (pending_cnt)) {
@@ -552,6 +555,16 @@ static void hl_device_hard_reset_pending
 
 	mutex_unlock(&hdev->fd_open_cnt_lock);
 
+}
+
+static void device_hard_reset_pending(struct work_struct *work)
+{
+	struct hl_device_reset_work *device_reset_work =
+		container_of(work, struct hl_device_reset_work, reset_work);
+	struct hl_device *hdev = device_reset_work->hdev;
+
+	device_kill_open_processes(hdev);
+
 	hl_device_reset(hdev, true, true);
 
 	kfree(device_reset_work);
@@ -635,7 +648,7 @@ again:
 		 * from a dedicated work
 		 */
 		INIT_WORK(&device_reset_work->reset_work,
-				hl_device_hard_reset_pending);
+				device_hard_reset_pending);
 		device_reset_work->hdev = hdev;
 		schedule_work(&device_reset_work->reset_work);
 
@@ -1035,6 +1048,15 @@ void hl_device_fini(struct hl_device *hd
 	/* Mark device as disabled */
 	hdev->disabled = true;
 
+	/*
+	 * Flush anyone that is inside the critical section of enqueue
+	 * jobs to the H/W
+	 */
+	hdev->asic_funcs->hw_queues_lock(hdev);
+	hdev->asic_funcs->hw_queues_unlock(hdev);
+
+	device_kill_open_processes(hdev);
+
 	hl_hwmon_fini(hdev);
 
 	device_late_fini(hdev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/habanalabs/goya/goya.c linux-libre-5.1.21-gnu/drivers/misc/habanalabs/goya/goya.c
--- linux-libre-5.1-gnu/drivers/misc/habanalabs/goya/goya.c	2019-05-05 21:45:20.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/habanalabs/goya/goya.c	2019-07-28 13:50:29.000000000 -0400
@@ -4407,6 +4407,9 @@ static u64 goya_read_pte(struct hl_devic
 {
 	struct goya_device *goya = hdev->asic_specific;
 
+	if (hdev->hard_reset_pending)
+		return U64_MAX;
+
 	return readq(hdev->pcie_bar[DDR_BAR_ID] +
 			(addr - goya->ddr_bar_cur_addr));
 }
@@ -4415,6 +4418,9 @@ static void goya_write_pte(struct hl_dev
 {
 	struct goya_device *goya = hdev->asic_specific;
 
+	if (hdev->hard_reset_pending)
+		return;
+
 	writeq(val, hdev->pcie_bar[DDR_BAR_ID] +
 			(addr - goya->ddr_bar_cur_addr));
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/habanalabs/memory.c linux-libre-5.1.21-gnu/drivers/misc/habanalabs/memory.c
--- linux-libre-5.1-gnu/drivers/misc/habanalabs/memory.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/habanalabs/memory.c	2019-07-28 02:28:39.000000000 -0400
@@ -675,11 +675,6 @@ static int init_phys_pg_pack_from_userpt
 
 		total_npages += npages;
 
-		if (first) {
-			first = false;
-			dma_addr &= PAGE_MASK_2MB;
-		}
-
 		if ((npages % PGS_IN_2MB_PAGE) ||
 					(dma_addr & (PAGE_SIZE_2MB - 1)))
 			is_huge_page_opt = false;
@@ -704,7 +699,6 @@ static int init_phys_pg_pack_from_userpt
 	phys_pg_pack->total_size = total_npages * page_size;
 
 	j = 0;
-	first = true;
 	for_each_sg(userptr->sgt->sgl, sg, userptr->sgt->nents, i) {
 		npages = get_sg_info(sg, &dma_addr);
 
@@ -1046,10 +1040,17 @@ static int unmap_device_va(struct hl_ctx
 
 	mutex_lock(&ctx->mmu_lock);
 
-	for (i = 0 ; i < phys_pg_pack->npages ; i++, next_vaddr += page_size)
+	for (i = 0 ; i < phys_pg_pack->npages ; i++, next_vaddr += page_size) {
 		if (hl_mmu_unmap(ctx, next_vaddr, page_size))
 			dev_warn_ratelimited(hdev->dev,
-				"unmap failed for vaddr: 0x%llx\n", next_vaddr);
+			"unmap failed for vaddr: 0x%llx\n", next_vaddr);
+
+		/* unmapping on Palladium can be really long, so avoid a CPU
+		 * soft lockup bug by sleeping a little between unmapping pages
+		 */
+		if (hdev->pldm)
+			usleep_range(500, 1000);
+	}
 
 	hdev->asic_funcs->mmu_invalidate_cache(hdev, true);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/kgdbts.c linux-libre-5.1.21-gnu/drivers/misc/kgdbts.c
--- linux-libre-5.1-gnu/drivers/misc/kgdbts.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/kgdbts.c	2019-07-28 02:28:39.000000000 -0400
@@ -1135,7 +1135,7 @@ static void kgdbts_put_char(u8 chr)
 static int param_set_kgdbts_var(const char *kmessage,
 				const struct kernel_param *kp)
 {
-	int len = strlen(kmessage);
+	size_t len = strlen(kmessage);
 
 	if (len >= MAX_CONFIG_LEN) {
 		printk(KERN_ERR "kgdbts: config string too long\n");
@@ -1155,7 +1155,7 @@ static int param_set_kgdbts_var(const ch
 
 	strcpy(config, kmessage);
 	/* Chop out \n char as a result of echo */
-	if (config[len - 1] == '\n')
+	if (len && config[len - 1] == '\n')
 		config[len - 1] = '\0';
 
 	/* Go and configure with the new params. */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/lkdtm/Makefile linux-libre-5.1.21-gnu/drivers/misc/lkdtm/Makefile
--- linux-libre-5.1-gnu/drivers/misc/lkdtm/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/lkdtm/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -15,8 +15,7 @@ KCOV_INSTRUMENT_rodata.o	:= n
 
 OBJCOPYFLAGS :=
 OBJCOPYFLAGS_rodata_objcopy.o	:= \
-			--set-section-flags .text=alloc,readonly \
-			--rename-section .text=.rodata
+			--rename-section .text=.rodata,alloc,readonly,load
 targets += rodata.o rodata_objcopy.o
 $(obj)/rodata_objcopy.o: $(obj)/rodata.o FORCE
 	$(call if_changed,objcopy)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/lkdtm/usercopy.c linux-libre-5.1.21-gnu/drivers/misc/lkdtm/usercopy.c
--- linux-libre-5.1-gnu/drivers/misc/lkdtm/usercopy.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/lkdtm/usercopy.c	2019-07-28 02:28:39.000000000 -0400
@@ -324,14 +324,16 @@ free_user:
 
 void lkdtm_USERCOPY_KERNEL_DS(void)
 {
-	char __user *user_ptr = (char __user *)ERR_PTR(-EINVAL);
+	char __user *user_ptr =
+		(char __user *)(0xFUL << (sizeof(unsigned long) * 8 - 4));
 	mm_segment_t old_fs = get_fs();
 	char buf[10] = {0};
 
-	pr_info("attempting copy_to_user on unmapped kernel address\n");
+	pr_info("attempting copy_to_user() to noncanonical address: %px\n",
+		user_ptr);
 	set_fs(KERNEL_DS);
-	if (copy_to_user(user_ptr, buf, sizeof(buf)))
-		pr_info("copy_to_user un unmapped kernel address failed\n");
+	if (copy_to_user(user_ptr, buf, sizeof(buf)) == 0)
+		pr_err("copy_to_user() to noncanonical address succeeded!?\n");
 	set_fs(old_fs);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/pci_endpoint_test.c linux-libre-5.1.21-gnu/drivers/misc/pci_endpoint_test.c
--- linux-libre-5.1-gnu/drivers/misc/pci_endpoint_test.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/pci_endpoint_test.c	2019-07-28 02:28:39.000000000 -0400
@@ -662,6 +662,7 @@ static int pci_endpoint_test_probe(struc
 	data = (struct pci_endpoint_test_data *)ent->driver_data;
 	if (data) {
 		test_reg_bar = data->test_reg_bar;
+		test->test_reg_bar = test_reg_bar;
 		test->alignment = data->alignment;
 		irq_type = data->irq_type;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/vmw_vmci/vmci_context.c linux-libre-5.1.21-gnu/drivers/misc/vmw_vmci/vmci_context.c
--- linux-libre-5.1-gnu/drivers/misc/vmw_vmci/vmci_context.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/vmw_vmci/vmci_context.c	2019-07-28 02:28:39.000000000 -0400
@@ -29,6 +29,9 @@
 #include "vmci_driver.h"
 #include "vmci_event.h"
 
+/* Use a wide upper bound for the maximum contexts. */
+#define VMCI_MAX_CONTEXTS 2000
+
 /*
  * List of current VMCI contexts.  Contexts can be added by
  * vmci_ctx_create() and removed via vmci_ctx_destroy().
@@ -125,19 +128,22 @@ struct vmci_ctx *vmci_ctx_create(u32 cid
 	/* Initialize host-specific VMCI context. */
 	init_waitqueue_head(&context->host_context.wait_queue);
 
-	context->queue_pair_array = vmci_handle_arr_create(0);
+	context->queue_pair_array =
+		vmci_handle_arr_create(0, VMCI_MAX_GUEST_QP_COUNT);
 	if (!context->queue_pair_array) {
 		error = -ENOMEM;
 		goto err_free_ctx;
 	}
 
-	context->doorbell_array = vmci_handle_arr_create(0);
+	context->doorbell_array =
+		vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT);
 	if (!context->doorbell_array) {
 		error = -ENOMEM;
 		goto err_free_qp_array;
 	}
 
-	context->pending_doorbell_array = vmci_handle_arr_create(0);
+	context->pending_doorbell_array =
+		vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT);
 	if (!context->pending_doorbell_array) {
 		error = -ENOMEM;
 		goto err_free_db_array;
@@ -212,7 +218,7 @@ static int ctx_fire_notification(u32 con
 	 * We create an array to hold the subscribers we find when
 	 * scanning through all contexts.
 	 */
-	subscriber_array = vmci_handle_arr_create(0);
+	subscriber_array = vmci_handle_arr_create(0, VMCI_MAX_CONTEXTS);
 	if (subscriber_array == NULL)
 		return VMCI_ERROR_NO_MEM;
 
@@ -631,20 +637,26 @@ int vmci_ctx_add_notification(u32 contex
 
 	spin_lock(&context->lock);
 
-	list_for_each_entry(n, &context->notifier_list, node) {
-		if (vmci_handle_is_equal(n->handle, notifier->handle)) {
-			exists = true;
-			break;
+	if (context->n_notifiers < VMCI_MAX_CONTEXTS) {
+		list_for_each_entry(n, &context->notifier_list, node) {
+			if (vmci_handle_is_equal(n->handle, notifier->handle)) {
+				exists = true;
+				break;
+			}
 		}
-	}
 
-	if (exists) {
-		kfree(notifier);
-		result = VMCI_ERROR_ALREADY_EXISTS;
+		if (exists) {
+			kfree(notifier);
+			result = VMCI_ERROR_ALREADY_EXISTS;
+		} else {
+			list_add_tail_rcu(&notifier->node,
+					  &context->notifier_list);
+			context->n_notifiers++;
+			result = VMCI_SUCCESS;
+		}
 	} else {
-		list_add_tail_rcu(&notifier->node, &context->notifier_list);
-		context->n_notifiers++;
-		result = VMCI_SUCCESS;
+		kfree(notifier);
+		result = VMCI_ERROR_NO_MEM;
 	}
 
 	spin_unlock(&context->lock);
@@ -729,8 +741,7 @@ static int vmci_ctx_get_chkpt_doorbells(
 					u32 *buf_size, void **pbuf)
 {
 	struct dbell_cpt_state *dbells;
-	size_t n_doorbells;
-	int i;
+	u32 i, n_doorbells;
 
 	n_doorbells = vmci_handle_arr_get_size(context->doorbell_array);
 	if (n_doorbells > 0) {
@@ -868,7 +879,8 @@ int vmci_ctx_rcv_notifications_get(u32 c
 	spin_lock(&context->lock);
 
 	*db_handle_array = context->pending_doorbell_array;
-	context->pending_doorbell_array = vmci_handle_arr_create(0);
+	context->pending_doorbell_array =
+		vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT);
 	if (!context->pending_doorbell_array) {
 		context->pending_doorbell_array = *db_handle_array;
 		*db_handle_array = NULL;
@@ -950,12 +962,11 @@ int vmci_ctx_dbell_create(u32 context_id
 		return VMCI_ERROR_NOT_FOUND;
 
 	spin_lock(&context->lock);
-	if (!vmci_handle_arr_has_entry(context->doorbell_array, handle)) {
-		vmci_handle_arr_append_entry(&context->doorbell_array, handle);
-		result = VMCI_SUCCESS;
-	} else {
+	if (!vmci_handle_arr_has_entry(context->doorbell_array, handle))
+		result = vmci_handle_arr_append_entry(&context->doorbell_array,
+						      handle);
+	else
 		result = VMCI_ERROR_DUPLICATE_ENTRY;
-	}
 
 	spin_unlock(&context->lock);
 	vmci_ctx_put(context);
@@ -1091,15 +1102,16 @@ int vmci_ctx_notify_dbell(u32 src_cid,
 			if (!vmci_handle_arr_has_entry(
 					dst_context->pending_doorbell_array,
 					handle)) {
-				vmci_handle_arr_append_entry(
+				result = vmci_handle_arr_append_entry(
 					&dst_context->pending_doorbell_array,
 					handle);
-
-				ctx_signal_notify(dst_context);
-				wake_up(&dst_context->host_context.wait_queue);
-
+				if (result == VMCI_SUCCESS) {
+					ctx_signal_notify(dst_context);
+					wake_up(&dst_context->host_context.wait_queue);
+				}
+			} else {
+				result = VMCI_SUCCESS;
 			}
-			result = VMCI_SUCCESS;
 		}
 		spin_unlock(&dst_context->lock);
 	}
@@ -1126,13 +1138,11 @@ int vmci_ctx_qp_create(struct vmci_ctx *
 	if (context == NULL || vmci_handle_is_invalid(handle))
 		return VMCI_ERROR_INVALID_ARGS;
 
-	if (!vmci_handle_arr_has_entry(context->queue_pair_array, handle)) {
-		vmci_handle_arr_append_entry(&context->queue_pair_array,
-					     handle);
-		result = VMCI_SUCCESS;
-	} else {
+	if (!vmci_handle_arr_has_entry(context->queue_pair_array, handle))
+		result = vmci_handle_arr_append_entry(
+			&context->queue_pair_array, handle);
+	else
 		result = VMCI_ERROR_DUPLICATE_ENTRY;
-	}
 
 	return result;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/vmw_vmci/vmci_handle_array.c linux-libre-5.1.21-gnu/drivers/misc/vmw_vmci/vmci_handle_array.c
--- linux-libre-5.1-gnu/drivers/misc/vmw_vmci/vmci_handle_array.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/vmw_vmci/vmci_handle_array.c	2019-07-28 02:28:39.000000000 -0400
@@ -16,24 +16,29 @@
 #include <linux/slab.h>
 #include "vmci_handle_array.h"
 
-static size_t handle_arr_calc_size(size_t capacity)
+static size_t handle_arr_calc_size(u32 capacity)
 {
-	return sizeof(struct vmci_handle_arr) +
+	return VMCI_HANDLE_ARRAY_HEADER_SIZE +
 	    capacity * sizeof(struct vmci_handle);
 }
 
-struct vmci_handle_arr *vmci_handle_arr_create(size_t capacity)
+struct vmci_handle_arr *vmci_handle_arr_create(u32 capacity, u32 max_capacity)
 {
 	struct vmci_handle_arr *array;
 
+	if (max_capacity == 0 || capacity > max_capacity)
+		return NULL;
+
 	if (capacity == 0)
-		capacity = VMCI_HANDLE_ARRAY_DEFAULT_SIZE;
+		capacity = min((u32)VMCI_HANDLE_ARRAY_DEFAULT_CAPACITY,
+			       max_capacity);
 
 	array = kmalloc(handle_arr_calc_size(capacity), GFP_ATOMIC);
 	if (!array)
 		return NULL;
 
 	array->capacity = capacity;
+	array->max_capacity = max_capacity;
 	array->size = 0;
 
 	return array;
@@ -44,27 +49,34 @@ void vmci_handle_arr_destroy(struct vmci
 	kfree(array);
 }
 
-void vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
-				  struct vmci_handle handle)
+int vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
+				 struct vmci_handle handle)
 {
 	struct vmci_handle_arr *array = *array_ptr;
 
 	if (unlikely(array->size >= array->capacity)) {
 		/* reallocate. */
 		struct vmci_handle_arr *new_array;
-		size_t new_capacity = array->capacity * VMCI_ARR_CAP_MULT;
-		size_t new_size = handle_arr_calc_size(new_capacity);
+		u32 capacity_bump = min(array->max_capacity - array->capacity,
+					array->capacity);
+		size_t new_size = handle_arr_calc_size(array->capacity +
+						       capacity_bump);
+
+		if (array->size >= array->max_capacity)
+			return VMCI_ERROR_NO_MEM;
 
 		new_array = krealloc(array, new_size, GFP_ATOMIC);
 		if (!new_array)
-			return;
+			return VMCI_ERROR_NO_MEM;
 
-		new_array->capacity = new_capacity;
+		new_array->capacity += capacity_bump;
 		*array_ptr = array = new_array;
 	}
 
 	array->entries[array->size] = handle;
 	array->size++;
+
+	return VMCI_SUCCESS;
 }
 
 /*
@@ -74,7 +86,7 @@ struct vmci_handle vmci_handle_arr_remov
 						struct vmci_handle entry_handle)
 {
 	struct vmci_handle handle = VMCI_INVALID_HANDLE;
-	size_t i;
+	u32 i;
 
 	for (i = 0; i < array->size; i++) {
 		if (vmci_handle_is_equal(array->entries[i], entry_handle)) {
@@ -109,7 +121,7 @@ struct vmci_handle vmci_handle_arr_remov
  * Handle at given index, VMCI_INVALID_HANDLE if invalid index.
  */
 struct vmci_handle
-vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index)
+vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, u32 index)
 {
 	if (unlikely(index >= array->size))
 		return VMCI_INVALID_HANDLE;
@@ -120,7 +132,7 @@ vmci_handle_arr_get_entry(const struct v
 bool vmci_handle_arr_has_entry(const struct vmci_handle_arr *array,
 			       struct vmci_handle entry_handle)
 {
-	size_t i;
+	u32 i;
 
 	for (i = 0; i < array->size; i++)
 		if (vmci_handle_is_equal(array->entries[i], entry_handle))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/misc/vmw_vmci/vmci_handle_array.h linux-libre-5.1.21-gnu/drivers/misc/vmw_vmci/vmci_handle_array.h
--- linux-libre-5.1-gnu/drivers/misc/vmw_vmci/vmci_handle_array.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/misc/vmw_vmci/vmci_handle_array.h	2019-07-28 02:28:39.000000000 -0400
@@ -17,32 +17,41 @@
 #define _VMCI_HANDLE_ARRAY_H_
 
 #include <linux/vmw_vmci_defs.h>
+#include <linux/limits.h>
 #include <linux/types.h>
 
-#define VMCI_HANDLE_ARRAY_DEFAULT_SIZE 4
-#define VMCI_ARR_CAP_MULT 2	/* Array capacity multiplier */
-
 struct vmci_handle_arr {
-	size_t capacity;
-	size_t size;
+	u32 capacity;
+	u32 max_capacity;
+	u32 size;
+	u32 pad;
 	struct vmci_handle entries[];
 };
 
-struct vmci_handle_arr *vmci_handle_arr_create(size_t capacity);
+#define VMCI_HANDLE_ARRAY_HEADER_SIZE				\
+	offsetof(struct vmci_handle_arr, entries)
+/* Select a default capacity that results in a 64 byte sized array */
+#define VMCI_HANDLE_ARRAY_DEFAULT_CAPACITY			6
+/* Make sure that the max array size can be expressed by a u32 */
+#define VMCI_HANDLE_ARRAY_MAX_CAPACITY				\
+	((U32_MAX - VMCI_HANDLE_ARRAY_HEADER_SIZE - 1) /	\
+	sizeof(struct vmci_handle))
+
+struct vmci_handle_arr *vmci_handle_arr_create(u32 capacity, u32 max_capacity);
 void vmci_handle_arr_destroy(struct vmci_handle_arr *array);
-void vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
-				  struct vmci_handle handle);
+int vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
+				 struct vmci_handle handle);
 struct vmci_handle vmci_handle_arr_remove_entry(struct vmci_handle_arr *array,
 						struct vmci_handle
 						entry_handle);
 struct vmci_handle vmci_handle_arr_remove_tail(struct vmci_handle_arr *array);
 struct vmci_handle
-vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index);
+vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, u32 index);
 bool vmci_handle_arr_has_entry(const struct vmci_handle_arr *array,
 			       struct vmci_handle entry_handle);
 struct vmci_handle *vmci_handle_arr_get_handles(struct vmci_handle_arr *array);
 
-static inline size_t vmci_handle_arr_get_size(
+static inline u32 vmci_handle_arr_get_size(
 	const struct vmci_handle_arr *array)
 {
 	return array->size;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/core/core.c linux-libre-5.1.21-gnu/drivers/mmc/core/core.c
--- linux-libre-5.1-gnu/drivers/mmc/core/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/core/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -144,8 +144,9 @@ void mmc_request_done(struct mmc_host *h
 	int err = cmd->error;
 
 	/* Flag re-tuning needed on CRC errors */
-	if ((cmd->opcode != MMC_SEND_TUNING_BLOCK &&
-	    cmd->opcode != MMC_SEND_TUNING_BLOCK_HS200) &&
+	if (cmd->opcode != MMC_SEND_TUNING_BLOCK &&
+	    cmd->opcode != MMC_SEND_TUNING_BLOCK_HS200 &&
+	    !host->retune_crc_disable &&
 	    (err == -EILSEQ || (mrq->sbc && mrq->sbc->error == -EILSEQ) ||
 	    (mrq->data && mrq->data->error == -EILSEQ) ||
 	    (mrq->stop && mrq->stop->error == -EILSEQ)))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/core/mmc.c linux-libre-5.1.21-gnu/drivers/mmc/core/mmc.c
--- linux-libre-5.1-gnu/drivers/mmc/core/mmc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/core/mmc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1212,13 +1212,13 @@ static int mmc_select_hs400(struct mmc_c
 	mmc_set_timing(host, MMC_TIMING_MMC_HS400);
 	mmc_set_bus_speed(card);
 
+	if (host->ops->hs400_complete)
+		host->ops->hs400_complete(host);
+
 	err = mmc_switch_status(card);
 	if (err)
 		goto out_err;
 
-	if (host->ops->hs400_complete)
-		host->ops->hs400_complete(host);
-
 	return 0;
 
 out_err:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/core/pwrseq_emmc.c linux-libre-5.1.21-gnu/drivers/mmc/core/pwrseq_emmc.c
--- linux-libre-5.1-gnu/drivers/mmc/core/pwrseq_emmc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/core/pwrseq_emmc.c	2019-07-28 02:28:39.000000000 -0400
@@ -30,19 +30,14 @@ struct mmc_pwrseq_emmc {
 
 #define to_pwrseq_emmc(p) container_of(p, struct mmc_pwrseq_emmc, pwrseq)
 
-static void __mmc_pwrseq_emmc_reset(struct mmc_pwrseq_emmc *pwrseq)
-{
-	gpiod_set_value(pwrseq->reset_gpio, 1);
-	udelay(1);
-	gpiod_set_value(pwrseq->reset_gpio, 0);
-	udelay(200);
-}
-
 static void mmc_pwrseq_emmc_reset(struct mmc_host *host)
 {
 	struct mmc_pwrseq_emmc *pwrseq =  to_pwrseq_emmc(host->pwrseq);
 
-	__mmc_pwrseq_emmc_reset(pwrseq);
+	gpiod_set_value_cansleep(pwrseq->reset_gpio, 1);
+	udelay(1);
+	gpiod_set_value_cansleep(pwrseq->reset_gpio, 0);
+	udelay(200);
 }
 
 static int mmc_pwrseq_emmc_reset_nb(struct notifier_block *this,
@@ -50,8 +45,11 @@ static int mmc_pwrseq_emmc_reset_nb(stru
 {
 	struct mmc_pwrseq_emmc *pwrseq = container_of(this,
 					struct mmc_pwrseq_emmc, reset_nb);
+	gpiod_set_value(pwrseq->reset_gpio, 1);
+	udelay(1);
+	gpiod_set_value(pwrseq->reset_gpio, 0);
+	udelay(200);
 
-	__mmc_pwrseq_emmc_reset(pwrseq);
 	return NOTIFY_DONE;
 }
 
@@ -72,14 +70,18 @@ static int mmc_pwrseq_emmc_probe(struct
 	if (IS_ERR(pwrseq->reset_gpio))
 		return PTR_ERR(pwrseq->reset_gpio);
 
-	/*
-	 * register reset handler to ensure emmc reset also from
-	 * emergency_reboot(), priority 255 is the highest priority
-	 * so it will be executed before any system reboot handler.
-	 */
-	pwrseq->reset_nb.notifier_call = mmc_pwrseq_emmc_reset_nb;
-	pwrseq->reset_nb.priority = 255;
-	register_restart_handler(&pwrseq->reset_nb);
+	if (!gpiod_cansleep(pwrseq->reset_gpio)) {
+		/*
+		 * register reset handler to ensure emmc reset also from
+		 * emergency_reboot(), priority 255 is the highest priority
+		 * so it will be executed before any system reboot handler.
+		 */
+		pwrseq->reset_nb.notifier_call = mmc_pwrseq_emmc_reset_nb;
+		pwrseq->reset_nb.priority = 255;
+		register_restart_handler(&pwrseq->reset_nb);
+	} else {
+		dev_notice(dev, "EMMC reset pin tied to a sleepy GPIO driver; reset on emergency-reboot disabled\n");
+	}
 
 	pwrseq->pwrseq.ops = &mmc_pwrseq_emmc_ops;
 	pwrseq->pwrseq.dev = dev;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/core/queue.c linux-libre-5.1.21-gnu/drivers/mmc/core/queue.c
--- linux-libre-5.1-gnu/drivers/mmc/core/queue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/core/queue.c	2019-07-28 02:28:39.000000000 -0400
@@ -472,6 +472,7 @@ void mmc_cleanup_queue(struct mmc_queue
 		blk_mq_unquiesce_queue(q);
 
 	blk_cleanup_queue(q);
+	blk_mq_free_tag_set(&mq->tag_set);
 
 	/*
 	 * A request can be completed before the next request, potentially
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/core/sd.c linux-libre-5.1.21-gnu/drivers/mmc/core/sd.c
--- linux-libre-5.1-gnu/drivers/mmc/core/sd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/core/sd.c	2019-07-28 02:28:39.000000000 -0400
@@ -221,6 +221,14 @@ static int mmc_decode_scr(struct mmc_car
 
 	if (scr->sda_spec3)
 		scr->cmds = UNSTUFF_BITS(resp, 32, 2);
+
+	/* SD Spec says: any SD Card shall set at least bits 0 and 2 */
+	if (!(scr->bus_widths & SD_SCR_BUS_WIDTH_1) ||
+	    !(scr->bus_widths & SD_SCR_BUS_WIDTH_4)) {
+		pr_err("%s: invalid bus width\n", mmc_hostname(card->host));
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/core/sdio.c linux-libre-5.1.21-gnu/drivers/mmc/core/sdio.c
--- linux-libre-5.1-gnu/drivers/mmc/core/sdio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/core/sdio.c	2019-07-28 02:28:39.000000000 -0400
@@ -941,6 +941,10 @@ static int mmc_sdio_pre_suspend(struct m
  */
 static int mmc_sdio_suspend(struct mmc_host *host)
 {
+	/* Prevent processing of SDIO IRQs in suspended state. */
+	mmc_card_set_suspended(host->card);
+	cancel_delayed_work_sync(&host->sdio_irq_work);
+
 	mmc_claim_host(host);
 
 	if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host))
@@ -989,13 +993,20 @@ static int mmc_sdio_resume(struct mmc_ho
 		err = sdio_enable_4bit_bus(host->card);
 	}
 
-	if (!err && host->sdio_irqs) {
+	if (err)
+		goto out;
+
+	/* Allow SDIO IRQs to be processed again. */
+	mmc_card_clr_suspended(host->card);
+
+	if (host->sdio_irqs) {
 		if (!(host->caps2 & MMC_CAP2_SDIO_IRQ_NOTHREAD))
 			wake_up_process(host->sdio_irq_thread);
 		else if (host->caps & MMC_CAP_SDIO_IRQ)
 			host->ops->enable_sdio_irq(host, 1);
 	}
 
+out:
 	mmc_release_host(host);
 
 	host->pm_flags &= ~MMC_PM_KEEP_POWER;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/core/sdio_io.c linux-libre-5.1.21-gnu/drivers/mmc/core/sdio_io.c
--- linux-libre-5.1-gnu/drivers/mmc/core/sdio_io.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/core/sdio_io.c	2019-07-28 02:28:39.000000000 -0400
@@ -19,6 +19,7 @@
 #include "sdio_ops.h"
 #include "core.h"
 #include "card.h"
+#include "host.h"
 
 /**
  *	sdio_claim_host - exclusively claim a bus for a certain SDIO function
@@ -738,3 +739,79 @@ int sdio_set_host_pm_flags(struct sdio_f
 	return 0;
 }
 EXPORT_SYMBOL_GPL(sdio_set_host_pm_flags);
+
+/**
+ *	sdio_retune_crc_disable - temporarily disable retuning on CRC errors
+ *	@func: SDIO function attached to host
+ *
+ *	If the SDIO card is known to be in a state where it might produce
+ *	CRC errors on the bus in response to commands (like if we know it is
+ *	transitioning between power states), an SDIO function driver can
+ *	call this function to temporarily disable the SD/MMC core behavior of
+ *	triggering an automatic retuning.
+ *
+ *	This function should be called while the host is claimed and the host
+ *	should remain claimed until sdio_retune_crc_enable() is called.
+ *	Specifically, the expected sequence of calls is:
+ *	- sdio_claim_host()
+ *	- sdio_retune_crc_disable()
+ *	- some number of calls like sdio_writeb() and sdio_readb()
+ *	- sdio_retune_crc_enable()
+ *	- sdio_release_host()
+ */
+void sdio_retune_crc_disable(struct sdio_func *func)
+{
+	func->card->host->retune_crc_disable = true;
+}
+EXPORT_SYMBOL_GPL(sdio_retune_crc_disable);
+
+/**
+ *	sdio_retune_crc_enable - re-enable retuning on CRC errors
+ *	@func: SDIO function attached to host
+ *
+ *	This is the compement to sdio_retune_crc_disable().
+ */
+void sdio_retune_crc_enable(struct sdio_func *func)
+{
+	func->card->host->retune_crc_disable = false;
+}
+EXPORT_SYMBOL_GPL(sdio_retune_crc_enable);
+
+/**
+ *	sdio_retune_hold_now - start deferring retuning requests till release
+ *	@func: SDIO function attached to host
+ *
+ *	This function can be called if it's currently a bad time to do
+ *	a retune of the SDIO card.  Retune requests made during this time
+ *	will be held and we'll actually do the retune sometime after the
+ *	release.
+ *
+ *	This function could be useful if an SDIO card is in a power state
+ *	where it can respond to a small subset of commands that doesn't
+ *	include the retuning command.  Care should be taken when using
+ *	this function since (presumably) the retuning request we might be
+ *	deferring was made for a good reason.
+ *
+ *	This function should be called while the host is claimed.
+ */
+void sdio_retune_hold_now(struct sdio_func *func)
+{
+	mmc_retune_hold_now(func->card->host);
+}
+EXPORT_SYMBOL_GPL(sdio_retune_hold_now);
+
+/**
+ *	sdio_retune_release - signal that it's OK to retune now
+ *	@func: SDIO function attached to host
+ *
+ *	This is the complement to sdio_retune_hold_now().  Calling this
+ *	function won't make a retune happen right away but will allow
+ *	them to be scheduled normally.
+ *
+ *	This function should be called while the host is claimed.
+ */
+void sdio_retune_release(struct sdio_func *func)
+{
+	mmc_retune_release(func->card->host);
+}
+EXPORT_SYMBOL_GPL(sdio_retune_release);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/core/sdio_irq.c linux-libre-5.1.21-gnu/drivers/mmc/core/sdio_irq.c
--- linux-libre-5.1-gnu/drivers/mmc/core/sdio_irq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/core/sdio_irq.c	2019-07-28 02:28:39.000000000 -0400
@@ -38,6 +38,10 @@ static int process_sdio_pending_irqs(str
 	unsigned char pending;
 	struct sdio_func *func;
 
+	/* Don't process SDIO IRQs if the card is suspended. */
+	if (mmc_card_suspended(card))
+		return 0;
+
 	/*
 	 * Optimization, if there is only 1 function interrupt registered
 	 * and we know an IRQ was signaled then call irq handler directly.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/Kconfig linux-libre-5.1.21-gnu/drivers/mmc/host/Kconfig
--- linux-libre-5.1-gnu/drivers/mmc/host/Kconfig	2019-05-05 21:43:21.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/Kconfig	2019-07-28 13:47:57.000000000 -0400
@@ -92,6 +92,7 @@ config MMC_SDHCI_PCI
 	tristate "SDHCI support on PCI bus"
 	depends on MMC_SDHCI && PCI
 	select MMC_CQHCI
+	select IOSF_MBI if X86
 	help
 	  This selects the PCI Secure Digital Host Controller Interface.
 	  Most controllers found today are PCI devices.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/mmci.c linux-libre-5.1.21-gnu/drivers/mmc/host/mmci.c
--- linux-libre-5.1-gnu/drivers/mmc/host/mmci.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/mmci.c	2019-07-28 02:28:39.000000000 -0400
@@ -1550,9 +1550,10 @@ static irqreturn_t mmci_irq(int irq, voi
 		}
 
 		/*
-		 * Don't poll for busy completion in irq context.
+		 * Busy detection has been handled by mmci_cmd_irq() above.
+		 * Clear the status bit to prevent polling in IRQ context.
 		 */
-		if (host->variant->busy_detect && host->busy_status)
+		if (host->variant->busy_detect_flag)
 			status &= ~host->variant->busy_detect_flag;
 
 		ret = 1;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/mmc_spi.c linux-libre-5.1.21-gnu/drivers/mmc/host/mmc_spi.c
--- linux-libre-5.1-gnu/drivers/mmc/host/mmc_spi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/mmc_spi.c	2019-07-28 02:28:39.000000000 -0400
@@ -819,6 +819,10 @@ mmc_spi_readblock(struct mmc_spi_host *h
 	}
 
 	status = spi_sync_locked(spi, &host->m);
+	if (status < 0) {
+		dev_dbg(&spi->dev, "read error %d\n", status);
+		return status;
+	}
 
 	if (host->dma_dev) {
 		dma_sync_single_for_cpu(host->dma_dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/mtk-sd.c linux-libre-5.1.21-gnu/drivers/mmc/host/mtk-sd.c
--- linux-libre-5.1-gnu/drivers/mmc/host/mtk-sd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/mtk-sd.c	2019-07-28 02:28:39.000000000 -0400
@@ -1003,6 +1003,8 @@ static void msdc_request_done(struct msd
 	msdc_track_cmd_data(host, mrq->cmd, mrq->data);
 	if (mrq->data)
 		msdc_unprepare_data(host, mrq);
+	if (host->error)
+		msdc_reset_hw(host);
 	mmc_request_done(host->mmc, mrq);
 }
 
@@ -1355,24 +1357,25 @@ static void msdc_request_timeout(struct
 	}
 }
 
-static void __msdc_enable_sdio_irq(struct mmc_host *mmc, int enb)
+static void __msdc_enable_sdio_irq(struct msdc_host *host, int enb)
 {
-	unsigned long flags;
-	struct msdc_host *host = mmc_priv(mmc);
-
-	spin_lock_irqsave(&host->lock, flags);
-	if (enb)
+	if (enb) {
 		sdr_set_bits(host->base + MSDC_INTEN, MSDC_INTEN_SDIOIRQ);
-	else
+		sdr_set_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE);
+	} else {
 		sdr_clr_bits(host->base + MSDC_INTEN, MSDC_INTEN_SDIOIRQ);
-	spin_unlock_irqrestore(&host->lock, flags);
+		sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE);
+	}
 }
 
 static void msdc_enable_sdio_irq(struct mmc_host *mmc, int enb)
 {
+	unsigned long flags;
 	struct msdc_host *host = mmc_priv(mmc);
 
-	__msdc_enable_sdio_irq(mmc, enb);
+	spin_lock_irqsave(&host->lock, flags);
+	__msdc_enable_sdio_irq(host, enb);
+	spin_unlock_irqrestore(&host->lock, flags);
 
 	if (enb)
 		pm_runtime_get_noresume(host->dev);
@@ -1394,6 +1397,8 @@ static irqreturn_t msdc_irq(int irq, voi
 		spin_lock_irqsave(&host->lock, flags);
 		events = readl(host->base + MSDC_INT);
 		event_mask = readl(host->base + MSDC_INTEN);
+		if ((events & event_mask) & MSDC_INT_SDIOIRQ)
+			__msdc_enable_sdio_irq(host, 0);
 		/* clear interrupts */
 		writel(events & event_mask, host->base + MSDC_INT);
 
@@ -1402,10 +1407,8 @@ static irqreturn_t msdc_irq(int irq, voi
 		data = host->data;
 		spin_unlock_irqrestore(&host->lock, flags);
 
-		if ((events & event_mask) & MSDC_INT_SDIOIRQ) {
-			__msdc_enable_sdio_irq(host->mmc, 0);
+		if ((events & event_mask) & MSDC_INT_SDIOIRQ)
 			sdio_signal_irq(host->mmc);
-		}
 
 		if (!(events & (event_mask & ~MSDC_INT_SDIOIRQ)))
 			break;
@@ -1528,10 +1531,7 @@ static void msdc_init_hw(struct msdc_hos
 	sdr_set_bits(host->base + SDC_CFG, SDC_CFG_SDIO);
 
 	/* Config SDIO device detect interrupt function */
-	if (host->mmc->caps & MMC_CAP_SDIO_IRQ)
-		sdr_set_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE);
-	else
-		sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE);
+	sdr_clr_bits(host->base + SDC_CFG, SDC_CFG_SDIOIDE);
 
 	/* Configure to default data timeout */
 	sdr_set_field(host->base + SDC_CFG, SDC_CFG_DTOC, 3);
@@ -2052,7 +2052,12 @@ static void msdc_hw_reset(struct mmc_hos
 
 static void msdc_ack_sdio_irq(struct mmc_host *mmc)
 {
-	__msdc_enable_sdio_irq(mmc, 1);
+	unsigned long flags;
+	struct msdc_host *host = mmc_priv(mmc);
+
+	spin_lock_irqsave(&host->lock, flags);
+	__msdc_enable_sdio_irq(host, 1);
+	spin_unlock_irqrestore(&host->lock, flags);
 }
 
 static const struct mmc_host_ops mt_msdc_ops = {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/renesas_sdhi_core.c linux-libre-5.1.21-gnu/drivers/mmc/host/renesas_sdhi_core.c
--- linux-libre-5.1-gnu/drivers/mmc/host/renesas_sdhi_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/renesas_sdhi_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -620,11 +620,16 @@ static const struct renesas_sdhi_quirks
 	.hs400_4taps = true,
 };
 
+static const struct renesas_sdhi_quirks sdhi_quirks_nohs400 = {
+	.hs400_disabled = true,
+};
+
 static const struct soc_device_attribute sdhi_quirks_match[]  = {
 	{ .soc_id = "r8a7795", .revision = "ES1.*", .data = &sdhi_quirks_h3_m3w_es1 },
 	{ .soc_id = "r8a7795", .revision = "ES2.0", .data = &sdhi_quirks_h3_es2 },
-	{ .soc_id = "r8a7796", .revision = "ES1.0", .data = &sdhi_quirks_h3_m3w_es1 },
-	{ .soc_id = "r8a7796", .revision = "ES1.1", .data = &sdhi_quirks_h3_m3w_es1 },
+	{ .soc_id = "r8a7796", .revision = "ES1.[012]", .data = &sdhi_quirks_h3_m3w_es1 },
+	{ .soc_id = "r8a774a1", .revision = "ES1.[012]", .data = &sdhi_quirks_h3_m3w_es1 },
+	{ .soc_id = "r8a77980", .data = &sdhi_quirks_nohs400 },
 	{ /* Sentinel. */ },
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/sdhci_am654.c linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci_am654.c
--- linux-libre-5.1-gnu/drivers/mmc/host/sdhci_am654.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci_am654.c	2019-07-28 02:28:39.000000000 -0400
@@ -209,7 +209,7 @@ static int sdhci_am654_init(struct sdhci
 		ctl_cfg_2 = SLOTTYPE_EMBEDDED;
 
 	regmap_update_bits(sdhci_am654->base, CTL_CFG_2,
-			   ctl_cfg_2, SLOTTYPE_MASK);
+			   SLOTTYPE_MASK, ctl_cfg_2);
 
 	return sdhci_add_host(host);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/sdhci-iproc.c linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-iproc.c
--- linux-libre-5.1-gnu/drivers/mmc/host/sdhci-iproc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-iproc.c	2019-07-28 02:28:39.000000000 -0400
@@ -196,7 +196,8 @@ static const struct sdhci_ops sdhci_ipro
 };
 
 static const struct sdhci_pltfm_data sdhci_iproc_cygnus_pltfm_data = {
-	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK,
+	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+		  SDHCI_QUIRK_NO_HISPD_BIT,
 	.quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN | SDHCI_QUIRK2_HOST_OFF_CARD_ON,
 	.ops = &sdhci_iproc_32only_ops,
 };
@@ -219,7 +220,8 @@ static const struct sdhci_iproc_data ipr
 
 static const struct sdhci_pltfm_data sdhci_iproc_pltfm_data = {
 	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
-		  SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
+		  SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 |
+		  SDHCI_QUIRK_NO_HISPD_BIT,
 	.quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN,
 	.ops = &sdhci_iproc_ops,
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/sdhci-msm.c linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-msm.c
--- linux-libre-5.1-gnu/drivers/mmc/host/sdhci-msm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-msm.c	2019-07-28 02:28:39.000000000 -0400
@@ -584,11 +584,14 @@ static int msm_init_cm_dll(struct sdhci_
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
 	int wait_cnt = 50;
-	unsigned long flags;
+	unsigned long flags, xo_clk = 0;
 	u32 config;
 	const struct sdhci_msm_offset *msm_offset =
 					msm_host->offset;
 
+	if (msm_host->use_14lpp_dll_reset && !IS_ERR_OR_NULL(msm_host->xo_clk))
+		xo_clk = clk_get_rate(msm_host->xo_clk);
+
 	spin_lock_irqsave(&host->lock, flags);
 
 	/*
@@ -636,10 +639,10 @@ static int msm_init_cm_dll(struct sdhci_
 		config &= CORE_FLL_CYCLE_CNT;
 		if (config)
 			mclk_freq = DIV_ROUND_CLOSEST_ULL((host->clock * 8),
-					clk_get_rate(msm_host->xo_clk));
+					xo_clk);
 		else
 			mclk_freq = DIV_ROUND_CLOSEST_ULL((host->clock * 4),
-					clk_get_rate(msm_host->xo_clk));
+					xo_clk);
 
 		config = readl_relaxed(host->ioaddr +
 				msm_offset->core_dll_config_2);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/sdhci-of-arasan.c linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-of-arasan.c
--- linux-libre-5.1-gnu/drivers/mmc/host/sdhci-of-arasan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-of-arasan.c	2019-07-28 02:28:39.000000000 -0400
@@ -832,7 +832,10 @@ static int sdhci_arasan_probe(struct pla
 		host->mmc_host_ops.start_signal_voltage_switch =
 					sdhci_arasan_voltage_switch;
 		sdhci_arasan->has_cqe = true;
-		host->mmc->caps2 |= MMC_CAP2_CQE | MMC_CAP2_CQE_DCMD;
+		host->mmc->caps2 |= MMC_CAP2_CQE;
+
+		if (!of_property_read_bool(np, "disable-cqe-dcmd"))
+			host->mmc->caps2 |= MMC_CAP2_CQE_DCMD;
 	}
 
 	ret = sdhci_arasan_add_host(sdhci_arasan);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/sdhci-of-esdhc.c linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-of-esdhc.c
--- linux-libre-5.1-gnu/drivers/mmc/host/sdhci-of-esdhc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-of-esdhc.c	2019-07-28 02:28:39.000000000 -0400
@@ -694,6 +694,9 @@ static void esdhc_reset(struct sdhci_hos
 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
 
+	if (of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc"))
+		mdelay(5);
+
 	if (mask & SDHCI_RESET_ALL) {
 		val = sdhci_readl(host, ESDHC_TBCTL);
 		val &= ~ESDHC_TB_EN;
@@ -1074,6 +1077,11 @@ static int sdhci_esdhc_probe(struct plat
 	if (esdhc->vendor_ver > VENDOR_V_22)
 		host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
 
+	if (of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc")) {
+		host->quirks2 |= SDHCI_QUIRK_RESET_AFTER_REQUEST;
+		host->quirks2 |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
+	}
+
 	if (of_device_is_compatible(np, "fsl,p5040-esdhc") ||
 	    of_device_is_compatible(np, "fsl,p5020-esdhc") ||
 	    of_device_is_compatible(np, "fsl,p4080-esdhc") ||
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/sdhci-pci-core.c linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-pci-core.c
--- linux-libre-5.1-gnu/drivers/mmc/host/sdhci-pci-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-pci-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,6 +31,10 @@
 #include <linux/mmc/sdhci-pci-data.h>
 #include <linux/acpi.h>
 
+#ifdef CONFIG_X86
+#include <asm/iosf_mbi.h>
+#endif
+
 #include "cqhci.h"
 
 #include "sdhci.h"
@@ -451,6 +455,50 @@ static const struct sdhci_pci_fixes sdhc
 	.probe_slot	= pch_hc_probe_slot,
 };
 
+#ifdef CONFIG_X86
+
+#define BYT_IOSF_SCCEP			0x63
+#define BYT_IOSF_OCP_NETCTRL0		0x1078
+#define BYT_IOSF_OCP_TIMEOUT_BASE	GENMASK(10, 8)
+
+static void byt_ocp_setting(struct pci_dev *pdev)
+{
+	u32 val = 0;
+
+	if (pdev->device != PCI_DEVICE_ID_INTEL_BYT_EMMC &&
+	    pdev->device != PCI_DEVICE_ID_INTEL_BYT_SDIO &&
+	    pdev->device != PCI_DEVICE_ID_INTEL_BYT_SD &&
+	    pdev->device != PCI_DEVICE_ID_INTEL_BYT_EMMC2)
+		return;
+
+	if (iosf_mbi_read(BYT_IOSF_SCCEP, MBI_CR_READ, BYT_IOSF_OCP_NETCTRL0,
+			  &val)) {
+		dev_err(&pdev->dev, "%s read error\n", __func__);
+		return;
+	}
+
+	if (!(val & BYT_IOSF_OCP_TIMEOUT_BASE))
+		return;
+
+	val &= ~BYT_IOSF_OCP_TIMEOUT_BASE;
+
+	if (iosf_mbi_write(BYT_IOSF_SCCEP, MBI_CR_WRITE, BYT_IOSF_OCP_NETCTRL0,
+			   val)) {
+		dev_err(&pdev->dev, "%s write error\n", __func__);
+		return;
+	}
+
+	dev_dbg(&pdev->dev, "%s completed\n", __func__);
+}
+
+#else
+
+static inline void byt_ocp_setting(struct pci_dev *pdev)
+{
+}
+
+#endif
+
 enum {
 	INTEL_DSM_FNS		=  0,
 	INTEL_DSM_V18_SWITCH	=  3,
@@ -715,6 +763,8 @@ static void byt_probe_slot(struct sdhci_
 
 	byt_read_dsm(slot);
 
+	byt_ocp_setting(slot->chip->pdev);
+
 	ops->execute_tuning = intel_execute_tuning;
 	ops->start_signal_voltage_switch = intel_start_signal_voltage_switch;
 
@@ -938,7 +988,35 @@ static int byt_sd_probe_slot(struct sdhc
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+
+static int byt_resume(struct sdhci_pci_chip *chip)
+{
+	byt_ocp_setting(chip->pdev);
+
+	return sdhci_pci_resume_host(chip);
+}
+
+#endif
+
+#ifdef CONFIG_PM
+
+static int byt_runtime_resume(struct sdhci_pci_chip *chip)
+{
+	byt_ocp_setting(chip->pdev);
+
+	return sdhci_pci_runtime_resume_host(chip);
+}
+
+#endif
+
 static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
+#ifdef CONFIG_PM_SLEEP
+	.resume		= byt_resume,
+#endif
+#ifdef CONFIG_PM
+	.runtime_resume	= byt_runtime_resume,
+#endif
 	.allow_runtime_pm = true,
 	.probe_slot	= byt_emmc_probe_slot,
 	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
@@ -972,6 +1050,12 @@ static const struct sdhci_pci_fixes sdhc
 };
 
 static const struct sdhci_pci_fixes sdhci_ni_byt_sdio = {
+#ifdef CONFIG_PM_SLEEP
+	.resume		= byt_resume,
+#endif
+#ifdef CONFIG_PM
+	.runtime_resume	= byt_runtime_resume,
+#endif
 	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
 			  SDHCI_QUIRK_NO_LED,
 	.quirks2	= SDHCI_QUIRK2_HOST_OFF_CARD_ON |
@@ -983,6 +1067,12 @@ static const struct sdhci_pci_fixes sdhc
 };
 
 static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
+#ifdef CONFIG_PM_SLEEP
+	.resume		= byt_resume,
+#endif
+#ifdef CONFIG_PM
+	.runtime_resume	= byt_runtime_resume,
+#endif
 	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
 			  SDHCI_QUIRK_NO_LED,
 	.quirks2	= SDHCI_QUIRK2_HOST_OFF_CARD_ON |
@@ -994,6 +1084,12 @@ static const struct sdhci_pci_fixes sdhc
 };
 
 static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
+#ifdef CONFIG_PM_SLEEP
+	.resume		= byt_resume,
+#endif
+#ifdef CONFIG_PM
+	.runtime_resume	= byt_runtime_resume,
+#endif
 	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
 			  SDHCI_QUIRK_NO_LED,
 	.quirks2	= SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/sdhci-pci-o2micro.c linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-pci-o2micro.c
--- linux-libre-5.1-gnu/drivers/mmc/host/sdhci-pci-o2micro.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-pci-o2micro.c	2019-07-28 02:28:39.000000000 -0400
@@ -124,6 +124,7 @@ static int sdhci_o2_execute_tuning(struc
 	 */
 	if (mmc->ios.bus_width == MMC_BUS_WIDTH_8) {
 		current_bus_width = mmc->ios.bus_width;
+		mmc->ios.bus_width = MMC_BUS_WIDTH_4;
 		sdhci_set_bus_width(host, MMC_BUS_WIDTH_4);
 	}
 
@@ -135,8 +136,10 @@ static int sdhci_o2_execute_tuning(struc
 
 	sdhci_end_tuning(host);
 
-	if (current_bus_width == MMC_BUS_WIDTH_8)
+	if (current_bus_width == MMC_BUS_WIDTH_8) {
+		mmc->ios.bus_width = MMC_BUS_WIDTH_8;
 		sdhci_set_bus_width(host, current_bus_width);
+	}
 
 	host->flags &= ~SDHCI_HS400_TUNING;
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/sdhci-tegra.c linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-tegra.c
--- linux-libre-5.1-gnu/drivers/mmc/host/sdhci-tegra.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/sdhci-tegra.c	2019-07-28 02:28:39.000000000 -0400
@@ -779,6 +779,7 @@ static void tegra_sdhci_set_uhs_signalin
 	bool set_dqs_trim = false;
 	bool do_hs400_dll_cal = false;
 
+	tegra_host->ddr_signaling = false;
 	switch (timing) {
 	case MMC_TIMING_UHS_SDR50:
 	case MMC_TIMING_UHS_SDR104:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mmc/host/tmio_mmc_core.c linux-libre-5.1.21-gnu/drivers/mmc/host/tmio_mmc_core.c
--- linux-libre-5.1-gnu/drivers/mmc/host/tmio_mmc_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mmc/host/tmio_mmc_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -842,8 +842,9 @@ static void tmio_mmc_finish_request(stru
 	if (mrq->cmd->error || (mrq->data && mrq->data->error))
 		tmio_mmc_abort_dma(host);
 
+	/* SCC error means retune, but executed command was still successful */
 	if (host->check_scc_error && host->check_scc_error(host))
-		mrq->cmd->error = -EILSEQ;
+		mmc_retune_needed(host->mmc);
 
 	/* If SET_BLOCK_COUNT, continue with main command */
 	if (host->mrq && !mrq->cmd->error) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mtd/maps/Kconfig linux-libre-5.1.21-gnu/drivers/mtd/maps/Kconfig
--- linux-libre-5.1-gnu/drivers/mtd/maps/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mtd/maps/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -10,7 +10,7 @@ config MTD_COMPLEX_MAPPINGS
 
 config MTD_PHYSMAP
 	tristate "Flash device in physical memory map"
-	depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM || MTD_LPDDR
+	depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM || MTD_RAM || MTD_LPDDR
 	help
 	  This provides a 'mapping' driver which allows the NOR Flash and
 	  ROM driver code to communicate with chips which are mapped
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mtd/maps/physmap-core.c linux-libre-5.1.21-gnu/drivers/mtd/maps/physmap-core.c
--- linux-libre-5.1-gnu/drivers/mtd/maps/physmap-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mtd/maps/physmap-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -132,6 +132,8 @@ static void physmap_set_addr_gpios(struc
 
 		gpiod_set_value(info->gpios->desc[i], !!(BIT(i) & ofs));
 	}
+
+	info->gpio_values = ofs;
 }
 
 #define win_mask(order)		(BIT(order) - 1)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mtd/nand/raw/mtk_nand.c linux-libre-5.1.21-gnu/drivers/mtd/nand/raw/mtk_nand.c
--- linux-libre-5.1-gnu/drivers/mtd/nand/raw/mtk_nand.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mtd/nand/raw/mtk_nand.c	2019-07-28 02:28:39.000000000 -0400
@@ -508,7 +508,8 @@ static int mtk_nfc_setup_data_interface(
 {
 	struct mtk_nfc *nfc = nand_get_controller_data(chip);
 	const struct nand_sdr_timings *timings;
-	u32 rate, tpoecs, tprecs, tc2r, tw2r, twh, twst, trlt;
+	u32 rate, tpoecs, tprecs, tc2r, tw2r, twh, twst = 0, trlt = 0;
+	u32 thold;
 
 	timings = nand_get_sdr_timings(conf);
 	if (IS_ERR(timings))
@@ -544,11 +545,28 @@ static int mtk_nfc_setup_data_interface(
 	twh = DIV_ROUND_UP(twh * rate, 1000000) - 1;
 	twh &= 0xf;
 
-	twst = timings->tWP_min / 1000;
+	/* Calculate real WE#/RE# hold time in nanosecond */
+	thold = (twh + 1) * 1000000 / rate;
+	/* nanosecond to picosecond */
+	thold *= 1000;
+
+	/*
+	 * WE# low level time should be expaned to meet WE# pulse time
+	 * and WE# cycle time at the same time.
+	 */
+	if (thold < timings->tWC_min)
+		twst = timings->tWC_min - thold;
+	twst = max(timings->tWP_min, twst) / 1000;
 	twst = DIV_ROUND_UP(twst * rate, 1000000) - 1;
 	twst &= 0xf;
 
-	trlt = max(timings->tREA_max, timings->tRP_min) / 1000;
+	/*
+	 * RE# low level time should be expaned to meet RE# pulse time,
+	 * RE# access time and RE# cycle time at the same time.
+	 */
+	if (thold < timings->tRC_min)
+		trlt = timings->tRC_min - thold;
+	trlt = max3(trlt, timings->tREA_max, timings->tRP_min) / 1000;
 	trlt = DIV_ROUND_UP(trlt * rate, 1000000) - 1;
 	trlt &= 0xf;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mtd/nand/spi/core.c linux-libre-5.1.21-gnu/drivers/mtd/nand/spi/core.c
--- linux-libre-5.1-gnu/drivers/mtd/nand/spi/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mtd/nand/spi/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -572,12 +572,12 @@ static int spinand_mtd_read(struct mtd_i
 		if (ret == -EBADMSG) {
 			ecc_failed = true;
 			mtd->ecc_stats.failed++;
-			ret = 0;
 		} else {
 			mtd->ecc_stats.corrected += ret;
 			max_bitflips = max_t(unsigned int, max_bitflips, ret);
 		}
 
+		ret = 0;
 		ops->retlen += iter.req.datalen;
 		ops->oobretlen += iter.req.ooblen;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/mtd/spi-nor/intel-spi.c linux-libre-5.1.21-gnu/drivers/mtd/spi-nor/intel-spi.c
--- linux-libre-5.1-gnu/drivers/mtd/spi-nor/intel-spi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/mtd/spi-nor/intel-spi.c	2019-07-28 02:28:39.000000000 -0400
@@ -632,6 +632,10 @@ static ssize_t intel_spi_read(struct spi
 	while (len > 0) {
 		block_size = min_t(size_t, len, INTEL_SPI_FIFO_SZ);
 
+		/* Read cannot cross 4K boundary */
+		block_size = min_t(loff_t, from + block_size,
+				   round_up(from + 1, SZ_4K)) - from;
+
 		writel(from, ispi->base + FADDR);
 
 		val = readl(ispi->base + HSFSTS_CTL);
@@ -685,6 +689,10 @@ static ssize_t intel_spi_write(struct sp
 	while (len > 0) {
 		block_size = min_t(size_t, len, INTEL_SPI_FIFO_SZ);
 
+		/* Write cannot cross 4K boundary */
+		block_size = min_t(loff_t, to + block_size,
+				   round_up(to + 1, SZ_4K)) - to;
+
 		writel(to, ispi->base + FADDR);
 
 		val = readl(ispi->base + HSFSTS_CTL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/bonding/bond_main.c linux-libre-5.1.21-gnu/drivers/net/bonding/bond_main.c
--- linux-libre-5.1-gnu/drivers/net/bonding/bond_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/bonding/bond_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -3122,13 +3122,18 @@ static int bond_slave_netdev_event(unsig
 	case NETDEV_CHANGE:
 		/* For 802.3ad mode only:
 		 * Getting invalid Speed/Duplex values here will put slave
-		 * in weird state. So mark it as link-fail for the time
-		 * being and let link-monitoring (miimon) set it right when
-		 * correct speeds/duplex are available.
+		 * in weird state. Mark it as link-fail if the link was
+		 * previously up or link-down if it hasn't yet come up, and
+		 * let link-monitoring (miimon) set it right when correct
+		 * speeds/duplex are available.
 		 */
 		if (bond_update_speed_duplex(slave) &&
-		    BOND_MODE(bond) == BOND_MODE_8023AD)
-			slave->link = BOND_LINK_FAIL;
+		    BOND_MODE(bond) == BOND_MODE_8023AD) {
+			if (slave->last_link_up)
+				slave->link = BOND_LINK_FAIL;
+			else
+				slave->link = BOND_LINK_DOWN;
+		}
 
 		if (BOND_MODE(bond) == BOND_MODE_8023AD)
 			bond_3ad_adapter_speed_duplex_changed(slave);
@@ -3861,8 +3866,8 @@ static netdev_tx_t bond_xmit_roundrobin(
 					struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct iphdr *iph = ip_hdr(skb);
 	struct slave *slave;
+	int slave_cnt;
 	u32 slave_id;
 
 	/* Start with the curr_active_slave that joined the bond as the
@@ -3871,23 +3876,32 @@ static netdev_tx_t bond_xmit_roundrobin(
 	 * send the join/membership reports.  The curr_active_slave found
 	 * will send all of this type of traffic.
 	 */
-	if (iph->protocol == IPPROTO_IGMP && skb->protocol == htons(ETH_P_IP)) {
-		slave = rcu_dereference(bond->curr_active_slave);
-		if (slave)
-			bond_dev_queue_xmit(bond, skb, slave->dev);
-		else
-			bond_xmit_slave_id(bond, skb, 0);
-	} else {
-		int slave_cnt = READ_ONCE(bond->slave_cnt);
+	if (skb->protocol == htons(ETH_P_IP)) {
+		int noff = skb_network_offset(skb);
+		struct iphdr *iph;
 
-		if (likely(slave_cnt)) {
-			slave_id = bond_rr_gen_slave_id(bond);
-			bond_xmit_slave_id(bond, skb, slave_id % slave_cnt);
-		} else {
-			bond_tx_drop(bond_dev, skb);
+		if (unlikely(!pskb_may_pull(skb, noff + sizeof(*iph))))
+			goto non_igmp;
+
+		iph = ip_hdr(skb);
+		if (iph->protocol == IPPROTO_IGMP) {
+			slave = rcu_dereference(bond->curr_active_slave);
+			if (slave)
+				bond_dev_queue_xmit(bond, skb, slave->dev);
+			else
+				bond_xmit_slave_id(bond, skb, 0);
+			return NETDEV_TX_OK;
 		}
 	}
 
+non_igmp:
+	slave_cnt = READ_ONCE(bond->slave_cnt);
+	if (likely(slave_cnt)) {
+		slave_id = bond_rr_gen_slave_id(bond);
+		bond_xmit_slave_id(bond, skb, slave_id % slave_cnt);
+	} else {
+		bond_tx_drop(bond_dev, skb);
+	}
 	return NETDEV_TX_OK;
 }
 
@@ -4316,12 +4330,12 @@ void bond_setup(struct net_device *bond_
 	bond_dev->features |= NETIF_F_NETNS_LOCAL;
 
 	bond_dev->hw_features = BOND_VLAN_FEATURES |
-				NETIF_F_HW_VLAN_CTAG_TX |
 				NETIF_F_HW_VLAN_CTAG_RX |
 				NETIF_F_HW_VLAN_CTAG_FILTER;
 
 	bond_dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
 	bond_dev->features |= bond_dev->hw_features;
+	bond_dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
 }
 
 /* Destroy a bonding device.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/bonding/bond_options.c linux-libre-5.1.21-gnu/drivers/net/bonding/bond_options.c
--- linux-libre-5.1-gnu/drivers/net/bonding/bond_options.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/bonding/bond_options.c	2019-07-28 02:28:39.000000000 -0400
@@ -1098,13 +1098,6 @@ static int bond_option_arp_validate_set(
 {
 	netdev_dbg(bond->dev, "Setting arp_validate to %s (%llu)\n",
 		   newval->string, newval->value);
-
-	if (bond->dev->flags & IFF_UP) {
-		if (!newval->value)
-			bond->recv_probe = NULL;
-		else if (bond->params.arp_interval)
-			bond->recv_probe = bond_arp_rcv;
-	}
 	bond->params.arp_validate = newval->value;
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/caif/caif_hsi.c linux-libre-5.1.21-gnu/drivers/net/caif/caif_hsi.c
--- linux-libre-5.1-gnu/drivers/net/caif/caif_hsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/caif/caif_hsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1455,7 +1455,7 @@ static void __exit cfhsi_exit_module(voi
 	rtnl_lock();
 	list_for_each_safe(list_node, n, &cfhsi_list) {
 		cfhsi = list_entry(list_node, struct cfhsi, list);
-		unregister_netdev(cfhsi->ndev);
+		unregister_netdevice(cfhsi->ndev);
 	}
 	rtnl_unlock();
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/can/flexcan.c linux-libre-5.1.21-gnu/drivers/net/can/flexcan.c
--- linux-libre-5.1-gnu/drivers/net/can/flexcan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/can/flexcan.c	2019-07-28 02:28:39.000000000 -0400
@@ -166,7 +166,7 @@
 #define FLEXCAN_MB_CNT_LENGTH(x)	(((x) & 0xf) << 16)
 #define FLEXCAN_MB_CNT_TIMESTAMP(x)	((x) & 0xffff)
 
-#define FLEXCAN_TIMEOUT_US		(50)
+#define FLEXCAN_TIMEOUT_US		(250)
 
 /* FLEXCAN hardware feature flags
  *
@@ -1583,9 +1583,6 @@ static int flexcan_probe(struct platform
 			dev_dbg(&pdev->dev, "failed to setup stop-mode\n");
 	}
 
-	dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%d)\n",
-		 priv->regs, dev->irq);
-
 	return 0;
 
  failed_register:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/can/m_can/m_can.c linux-libre-5.1.21-gnu/drivers/net/can/m_can/m_can.c
--- linux-libre-5.1-gnu/drivers/net/can/m_can/m_can.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/can/m_can/m_can.c	2019-07-28 02:28:39.000000000 -0400
@@ -822,6 +822,27 @@ static int m_can_poll(struct napi_struct
 	if (!irqstatus)
 		goto end;
 
+	/* Errata workaround for issue "Needless activation of MRAF irq"
+	 * During frame reception while the MCAN is in Error Passive state
+	 * and the Receive Error Counter has the value MCAN_ECR.REC = 127,
+	 * it may happen that MCAN_IR.MRAF is set although there was no
+	 * Message RAM access failure.
+	 * If MCAN_IR.MRAF is enabled, an interrupt to the Host CPU is generated
+	 * The Message RAM Access Failure interrupt routine needs to check
+	 * whether MCAN_ECR.RP = ’1’ and MCAN_ECR.REC = 127.
+	 * In this case, reset MCAN_IR.MRAF. No further action is required.
+	 */
+	if ((priv->version <= 31) && (irqstatus & IR_MRAF) &&
+	    (m_can_read(priv, M_CAN_ECR) & ECR_RP)) {
+		struct can_berr_counter bec;
+
+		__m_can_get_berr_counter(dev, &bec);
+		if (bec.rxerr == 127) {
+			m_can_write(priv, M_CAN_IR, IR_MRAF);
+			irqstatus &= ~IR_MRAF;
+		}
+	}
+
 	psr = m_can_read(priv, M_CAN_PSR);
 	if (irqstatus & IR_ERR_STATE)
 		work_done += m_can_handle_state_errors(dev, psr);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/can/spi/Kconfig linux-libre-5.1.21-gnu/drivers/net/can/spi/Kconfig
--- linux-libre-5.1-gnu/drivers/net/can/spi/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/can/spi/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -8,9 +8,10 @@ config CAN_HI311X
 	  Driver for the Holt HI311x SPI CAN controllers.
 
 config CAN_MCP251X
-	tristate "Microchip MCP251x SPI CAN controllers"
+	tristate "Microchip MCP251x and MCP25625 SPI CAN controllers"
 	depends on HAS_DMA
 	---help---
-	  Driver for the Microchip MCP251x SPI CAN controllers.
+	  Driver for the Microchip MCP251x and MCP25625 SPI CAN
+	  controllers.
 
 endmenu
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/can/spi/mcp251x.c linux-libre-5.1.21-gnu/drivers/net/can/spi/mcp251x.c
--- linux-libre-5.1-gnu/drivers/net/can/spi/mcp251x.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/can/spi/mcp251x.c	2019-07-28 02:28:39.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * CAN bus driver for Microchip 251x CAN Controller with SPI Interface
+ * CAN bus driver for Microchip 251x/25625 CAN Controller with SPI Interface
  *
  * MCP2510 support and bug fixes by Christian Pellegrin
  * <chripell@evolware.org>
@@ -41,7 +41,7 @@
  * static struct spi_board_info spi_board_info[] = {
  *         {
  *                 .modalias = "mcp2510",
- *			// or "mcp2515" depending on your controller
+ *			// "mcp2515" or "mcp25625" depending on your controller
  *                 .platform_data = &mcp251x_info,
  *                 .irq = IRQ_EINT13,
  *                 .max_speed_hz = 2*1000*1000,
@@ -238,6 +238,7 @@ static const struct can_bittiming_const
 enum mcp251x_model {
 	CAN_MCP251X_MCP2510	= 0x2510,
 	CAN_MCP251X_MCP2515	= 0x2515,
+	CAN_MCP251X_MCP25625	= 0x25625,
 };
 
 struct mcp251x_priv {
@@ -280,7 +281,6 @@ static inline int mcp251x_is_##_model(st
 }
 
 MCP251X_IS(2510);
-MCP251X_IS(2515);
 
 static void mcp251x_clean(struct net_device *net)
 {
@@ -639,7 +639,7 @@ static int mcp251x_hw_reset(struct spi_d
 
 	/* Wait for oscillator startup timer after reset */
 	mdelay(MCP251X_OST_DELAY_MS);
-	
+
 	reg = mcp251x_read_reg(spi, CANSTAT);
 	if ((reg & CANCTRL_REQOP_MASK) != CANCTRL_REQOP_CONF)
 		return -ENODEV;
@@ -820,9 +820,8 @@ static irqreturn_t mcp251x_can_ist(int i
 		/* receive buffer 0 */
 		if (intf & CANINTF_RX0IF) {
 			mcp251x_hw_rx(spi, 0);
-			/*
-			 * Free one buffer ASAP
-			 * (The MCP2515 does this automatically.)
+			/* Free one buffer ASAP
+			 * (The MCP2515/25625 does this automatically.)
 			 */
 			if (mcp251x_is_2510(spi))
 				mcp251x_write_bits(spi, CANINTF, CANINTF_RX0IF, 0x00);
@@ -831,7 +830,7 @@ static irqreturn_t mcp251x_can_ist(int i
 		/* receive buffer 1 */
 		if (intf & CANINTF_RX1IF) {
 			mcp251x_hw_rx(spi, 1);
-			/* the MCP2515 does this automatically */
+			/* The MCP2515/25625 does this automatically. */
 			if (mcp251x_is_2510(spi))
 				clear_intf |= CANINTF_RX1IF;
 		}
@@ -1006,6 +1005,10 @@ static const struct of_device_id mcp251x
 		.compatible	= "microchip,mcp2515",
 		.data		= (void *)CAN_MCP251X_MCP2515,
 	},
+	{
+		.compatible	= "microchip,mcp25625",
+		.data		= (void *)CAN_MCP251X_MCP25625,
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mcp251x_of_match);
@@ -1019,6 +1022,10 @@ static const struct spi_device_id mcp251
 		.name		= "mcp2515",
 		.driver_data	= (kernel_ulong_t)CAN_MCP251X_MCP2515,
 	},
+	{
+		.name		= "mcp25625",
+		.driver_data	= (kernel_ulong_t)CAN_MCP251X_MCP25625,
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, mcp251x_id_table);
@@ -1259,5 +1266,5 @@ module_spi_driver(mcp251x_can_driver);
 
 MODULE_AUTHOR("Chris Elston <celston@katalix.com>, "
 	      "Christian Pellegrin <chripell@evolware.org>");
-MODULE_DESCRIPTION("Microchip 251x CAN driver");
+MODULE_DESCRIPTION("Microchip 251x/25625 CAN driver");
 MODULE_LICENSE("GPL v2");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/can/xilinx_can.c linux-libre-5.1.21-gnu/drivers/net/can/xilinx_can.c
--- linux-libre-5.1-gnu/drivers/net/can/xilinx_can.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/can/xilinx_can.c	2019-07-28 02:28:39.000000000 -0400
@@ -1443,7 +1443,7 @@ static const struct xcan_devtype_data xc
 		 XCAN_FLAG_RXMNF |
 		 XCAN_FLAG_TX_MAILBOXES |
 		 XCAN_FLAG_RX_FIFO_MULTI,
-	.bittiming_const = &xcan_bittiming_const,
+	.bittiming_const = &xcan_bittiming_const_canfd,
 	.btr_ts2_shift = XCAN_BTR_TS2_SHIFT_CANFD,
 	.btr_sjw_shift = XCAN_BTR_SJW_SHIFT_CANFD,
 	.bus_clk_name = "s_axi_aclk",
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/dsa/microchip/ksz_common.c linux-libre-5.1.21-gnu/drivers/net/dsa/microchip/ksz_common.c
--- linux-libre-5.1-gnu/drivers/net/dsa/microchip/ksz_common.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/dsa/microchip/ksz_common.c	2019-07-28 02:28:39.000000000 -0400
@@ -83,6 +83,9 @@ static void ksz_mib_read_work(struct wor
 	int i;
 
 	for (i = 0; i < dev->mib_port_cnt; i++) {
+		if (dsa_is_unused_port(dev->ds, i))
+			continue;
+
 		p = &dev->ports[i];
 		mib = &p->mib;
 		mutex_lock(&mib->cnt_mutex);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/dsa/mv88e6xxx/chip.c linux-libre-5.1.21-gnu/drivers/net/dsa/mv88e6xxx/chip.c
--- linux-libre-5.1-gnu/drivers/net/dsa/mv88e6xxx/chip.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/dsa/mv88e6xxx/chip.c	2019-07-28 02:28:39.000000000 -0400
@@ -910,7 +910,7 @@ static uint64_t _mv88e6xxx_get_ethtool_s
 			err = mv88e6xxx_port_read(chip, port, s->reg + 1, &reg);
 			if (err)
 				return U64_MAX;
-			high = reg;
+			low |= ((u32)reg) << 16;
 		}
 		break;
 	case STATS_TYPE_BANK1:
@@ -1517,7 +1517,7 @@ static int mv88e6xxx_vtu_get(struct mv88
 	int err;
 
 	if (!vid)
-		return -EINVAL;
+		return -EOPNOTSUPP;
 
 	entry->vid = vid - 1;
 	entry->valid = false;
@@ -4910,6 +4910,8 @@ static int mv88e6xxx_probe(struct mdio_d
 		err = PTR_ERR(chip->reset);
 		goto out;
 	}
+	if (chip->reset)
+		usleep_range(1000, 2000);
 
 	err = mv88e6xxx_detect(chip);
 	if (err)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/dsa/mv88e6xxx/global1_vtu.c linux-libre-5.1.21-gnu/drivers/net/dsa/mv88e6xxx/global1_vtu.c
--- linux-libre-5.1-gnu/drivers/net/dsa/mv88e6xxx/global1_vtu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/dsa/mv88e6xxx/global1_vtu.c	2019-07-28 02:28:39.000000000 -0400
@@ -419,7 +419,7 @@ int mv88e6185_g1_vtu_loadpurge(struct mv
 		 * VTU DBNum[7:4] are located in VTU Operation 11:8
 		 */
 		op |= entry->fid & 0x000f;
-		op |= (entry->fid & 0x00f0) << 8;
+		op |= (entry->fid & 0x00f0) << 4;
 	}
 
 	return mv88e6xxx_g1_vtu_op(chip, op);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/dsa/rtl8366.c linux-libre-5.1.21-gnu/drivers/net/dsa/rtl8366.c
--- linux-libre-5.1-gnu/drivers/net/dsa/rtl8366.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/dsa/rtl8366.c	2019-07-28 02:28:39.000000000 -0400
@@ -307,7 +307,8 @@ int rtl8366_vlan_filtering(struct dsa_sw
 	struct rtl8366_vlan_4k vlan4k;
 	int ret;
 
-	if (!smi->ops->is_vlan_valid(smi, port))
+	/* Use VLAN nr port + 1 since VLAN0 is not valid */
+	if (!smi->ops->is_vlan_valid(smi, port + 1))
 		return -EINVAL;
 
 	dev_info(smi->dev, "%s filtering on port %d\n",
@@ -318,12 +319,12 @@ int rtl8366_vlan_filtering(struct dsa_sw
 	 * The hardware support filter ID (FID) 0..7, I have no clue how to
 	 * support this in the driver when the callback only says on/off.
 	 */
-	ret = smi->ops->get_vlan_4k(smi, port, &vlan4k);
+	ret = smi->ops->get_vlan_4k(smi, port + 1, &vlan4k);
 	if (ret)
 		return ret;
 
 	/* Just set the filter to FID 1 for now then */
-	ret = rtl8366_set_vlan(smi, port,
+	ret = rtl8366_set_vlan(smi, port + 1,
 			       vlan4k.member,
 			       vlan4k.untag,
 			       1);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/8390/Kconfig linux-libre-5.1.21-gnu/drivers/net/ethernet/8390/Kconfig
--- linux-libre-5.1-gnu/drivers/net/ethernet/8390/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/8390/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -49,7 +49,7 @@ config XSURF100
 	tristate "Amiga XSurf 100 AX88796/NE2000 clone support"
 	depends on ZORRO
 	select AX88796
-	select ASIX_PHY
+	select AX88796B_PHY
 	help
 	  This driver is for the Individual Computers X-Surf 100 Ethernet
 	  card (based on the Asix AX88796 chip). If you have such a card,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/amazon/ena/ena_netdev.c linux-libre-5.1.21-gnu/drivers/net/ethernet/amazon/ena/ena_netdev.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/amazon/ena/ena_netdev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/amazon/ena/ena_netdev.c	2019-07-28 02:28:39.000000000 -0400
@@ -224,28 +224,23 @@ static int ena_setup_tx_resources(struct
 	if (!tx_ring->tx_buffer_info) {
 		tx_ring->tx_buffer_info = vzalloc(size);
 		if (!tx_ring->tx_buffer_info)
-			return -ENOMEM;
+			goto err_tx_buffer_info;
 	}
 
 	size = sizeof(u16) * tx_ring->ring_size;
 	tx_ring->free_tx_ids = vzalloc_node(size, node);
 	if (!tx_ring->free_tx_ids) {
 		tx_ring->free_tx_ids = vzalloc(size);
-		if (!tx_ring->free_tx_ids) {
-			vfree(tx_ring->tx_buffer_info);
-			return -ENOMEM;
-		}
+		if (!tx_ring->free_tx_ids)
+			goto err_free_tx_ids;
 	}
 
 	size = tx_ring->tx_max_header_size;
 	tx_ring->push_buf_intermediate_buf = vzalloc_node(size, node);
 	if (!tx_ring->push_buf_intermediate_buf) {
 		tx_ring->push_buf_intermediate_buf = vzalloc(size);
-		if (!tx_ring->push_buf_intermediate_buf) {
-			vfree(tx_ring->tx_buffer_info);
-			vfree(tx_ring->free_tx_ids);
-			return -ENOMEM;
-		}
+		if (!tx_ring->push_buf_intermediate_buf)
+			goto err_push_buf_intermediate_buf;
 	}
 
 	/* Req id ring for TX out of order completions */
@@ -259,6 +254,15 @@ static int ena_setup_tx_resources(struct
 	tx_ring->next_to_clean = 0;
 	tx_ring->cpu = ena_irq->cpu;
 	return 0;
+
+err_push_buf_intermediate_buf:
+	vfree(tx_ring->free_tx_ids);
+	tx_ring->free_tx_ids = NULL;
+err_free_tx_ids:
+	vfree(tx_ring->tx_buffer_info);
+	tx_ring->tx_buffer_info = NULL;
+err_tx_buffer_info:
+	return -ENOMEM;
 }
 
 /* ena_free_tx_resources - Free I/O Tx Resources per Queue
@@ -378,6 +382,7 @@ static int ena_setup_rx_resources(struct
 		rx_ring->free_rx_ids = vzalloc(size);
 		if (!rx_ring->free_rx_ids) {
 			vfree(rx_ring->rx_buffer_info);
+			rx_ring->rx_buffer_info = NULL;
 			return -ENOMEM;
 		}
 	}
@@ -2292,7 +2297,7 @@ static void ena_config_host_info(struct
 	host_info->bdf = (pdev->bus->number << 8) | pdev->devfn;
 	host_info->os_type = ENA_ADMIN_OS_LINUX;
 	host_info->kernel_ver = LINUX_VERSION_CODE;
-	strncpy(host_info->kernel_ver_str, utsname()->version,
+	strlcpy(host_info->kernel_ver_str, utsname()->version,
 		sizeof(host_info->kernel_ver_str) - 1);
 	host_info->os_dist = 0;
 	strncpy(host_info->os_dist_str, utsname()->release,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/aq_filters.c linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/aq_filters.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/aq_filters.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/aq_filters.c	2019-07-28 02:28:39.000000000 -0400
@@ -843,9 +843,14 @@ int aq_filters_vlans_update(struct aq_ni
 		return err;
 
 	if (aq_nic->ndev->features & NETIF_F_HW_VLAN_CTAG_FILTER) {
-		if (hweight < AQ_VLAN_MAX_FILTERS)
-			err = aq_hw_ops->hw_filter_vlan_ctrl(aq_hw, true);
+		if (hweight < AQ_VLAN_MAX_FILTERS && hweight > 0) {
+			err = aq_hw_ops->hw_filter_vlan_ctrl(aq_hw,
+				!(aq_nic->packet_filter & IFF_PROMISC));
+			aq_nic->aq_nic_cfg.is_vlan_force_promisc = false;
+		} else {
 		/* otherwise left in promiscue mode */
+			aq_nic->aq_nic_cfg.is_vlan_force_promisc = true;
+		}
 	}
 
 	return err;
@@ -866,6 +871,7 @@ int aq_filters_vlan_offload_off(struct a
 	if (unlikely(!aq_hw_ops->hw_filter_vlan_ctrl))
 		return -EOPNOTSUPP;
 
+	aq_nic->aq_nic_cfg.is_vlan_force_promisc = true;
 	err = aq_hw_ops->hw_filter_vlan_ctrl(aq_hw, false);
 	if (err)
 		return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/aq_nic.c linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/aq_nic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/aq_nic.c	2019-07-28 02:28:39.000000000 -0400
@@ -117,6 +117,7 @@ void aq_nic_cfg_start(struct aq_nic_s *s
 
 	cfg->link_speed_msk &= cfg->aq_hw_caps->link_speed_msk;
 	cfg->features = cfg->aq_hw_caps->hw_features;
+	cfg->is_vlan_force_promisc = true;
 }
 
 static int aq_nic_update_link_status(struct aq_nic_s *self)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/aq_nic.h linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/aq_nic.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/aq_nic.h	2019-07-28 02:28:39.000000000 -0400
@@ -36,6 +36,7 @@ struct aq_nic_cfg_s {
 	u32 flow_control;
 	u32 link_speed_msk;
 	u32 wol;
+	bool is_vlan_force_promisc;
 	u16 is_mc_list_enabled;
 	u16 mc_list_count;
 	bool is_autoneg;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/aq_ring.c linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/aq_ring.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/aq_ring.c	2019-07-28 02:28:39.000000000 -0400
@@ -139,10 +139,10 @@ void aq_ring_queue_stop(struct aq_ring_s
 bool aq_ring_tx_clean(struct aq_ring_s *self)
 {
 	struct device *dev = aq_nic_get_dev(self->aq_nic);
-	unsigned int budget = AQ_CFG_TX_CLEAN_BUDGET;
+	unsigned int budget;
 
-	for (; self->sw_head != self->hw_head && budget--;
-		self->sw_head = aq_ring_next_dx(self, self->sw_head)) {
+	for (budget = AQ_CFG_TX_CLEAN_BUDGET;
+	     budget && self->sw_head != self->hw_head; budget--) {
 		struct aq_ring_buff_s *buff = &self->buff_ring[self->sw_head];
 
 		if (likely(buff->is_mapped)) {
@@ -167,6 +167,7 @@ bool aq_ring_tx_clean(struct aq_ring_s *
 
 		buff->pa = 0U;
 		buff->eop_index = 0xffffU;
+		self->sw_head = aq_ring_next_dx(self, self->sw_head);
 	}
 
 	return !!budget;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c	2019-07-28 02:28:39.000000000 -0400
@@ -702,38 +702,41 @@ static int hw_atl_b0_hw_ring_rx_receive(
 		if ((rx_stat & BIT(0)) || rxd_wb->type & 0x1000U) {
 			/* MAC error or DMA error */
 			buff->is_error = 1U;
-		} else {
-			if (self->aq_nic_cfg->is_rss) {
-				/* last 4 byte */
-				u16 rss_type = rxd_wb->type & 0xFU;
+		}
+		if (self->aq_nic_cfg->is_rss) {
+			/* last 4 byte */
+			u16 rss_type = rxd_wb->type & 0xFU;
 
-				if (rss_type && rss_type < 0x8U) {
-					buff->is_hash_l4 = (rss_type == 0x4 ||
-					rss_type == 0x5);
-					buff->rss_hash = rxd_wb->rss_hash;
-				}
+			if (rss_type && rss_type < 0x8U) {
+				buff->is_hash_l4 = (rss_type == 0x4 ||
+				rss_type == 0x5);
+				buff->rss_hash = rxd_wb->rss_hash;
 			}
+		}
 
-			if (HW_ATL_B0_RXD_WB_STAT2_EOP & rxd_wb->status) {
-				buff->len = rxd_wb->pkt_len %
-					AQ_CFG_RX_FRAME_MAX;
-				buff->len = buff->len ?
-					buff->len : AQ_CFG_RX_FRAME_MAX;
-				buff->next = 0U;
-				buff->is_eop = 1U;
+		if (HW_ATL_B0_RXD_WB_STAT2_EOP & rxd_wb->status) {
+			buff->len = rxd_wb->pkt_len %
+				AQ_CFG_RX_FRAME_MAX;
+			buff->len = buff->len ?
+				buff->len : AQ_CFG_RX_FRAME_MAX;
+			buff->next = 0U;
+			buff->is_eop = 1U;
+		} else {
+			buff->len =
+				rxd_wb->pkt_len > AQ_CFG_RX_FRAME_MAX ?
+				AQ_CFG_RX_FRAME_MAX : rxd_wb->pkt_len;
+
+			if (HW_ATL_B0_RXD_WB_STAT2_RSCCNT &
+				rxd_wb->status) {
+				/* LRO */
+				buff->next = rxd_wb->next_desc_ptr;
+				++ring->stats.rx.lro_packets;
 			} else {
-				if (HW_ATL_B0_RXD_WB_STAT2_RSCCNT &
-					rxd_wb->status) {
-					/* LRO */
-					buff->next = rxd_wb->next_desc_ptr;
-					++ring->stats.rx.lro_packets;
-				} else {
-					/* jumbo */
-					buff->next =
-						aq_ring_next_dx(ring,
-								ring->hw_head);
-					++ring->stats.rx.jumbo_packets;
-				}
+				/* jumbo */
+				buff->next =
+					aq_ring_next_dx(ring,
+							ring->hw_head);
+				++ring->stats.rx.jumbo_packets;
 			}
 		}
 	}
@@ -768,8 +771,15 @@ static int hw_atl_b0_hw_packet_filter_se
 					  unsigned int packet_filter)
 {
 	unsigned int i = 0U;
+	struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
+
+	hw_atl_rpfl2promiscuous_mode_en_set(self,
+					    IS_FILTER_ENABLED(IFF_PROMISC));
+
+	hw_atl_rpf_vlan_prom_mode_en_set(self,
+				     IS_FILTER_ENABLED(IFF_PROMISC) ||
+				     cfg->is_vlan_force_promisc);
 
-	hw_atl_rpfl2promiscuous_mode_en_set(self, IS_FILTER_ENABLED(IFF_PROMISC));
 	hw_atl_rpfl2multicast_flr_en_set(self,
 					 IS_FILTER_ENABLED(IFF_ALLMULTI), 0);
 
@@ -778,13 +788,13 @@ static int hw_atl_b0_hw_packet_filter_se
 
 	hw_atl_rpfl2broadcast_en_set(self, IS_FILTER_ENABLED(IFF_BROADCAST));
 
-	self->aq_nic_cfg->is_mc_list_enabled = IS_FILTER_ENABLED(IFF_MULTICAST);
+	cfg->is_mc_list_enabled = IS_FILTER_ENABLED(IFF_MULTICAST);
 
 	for (i = HW_ATL_B0_MAC_MIN; i < HW_ATL_B0_MAC_MAX; ++i)
 		hw_atl_rpfl2_uc_flr_en_set(self,
-					   (self->aq_nic_cfg->is_mc_list_enabled &&
-				    (i <= self->aq_nic_cfg->mc_list_count)) ?
-				    1U : 0U, i);
+					   (cfg->is_mc_list_enabled &&
+					    (i <= cfg->mc_list_count)) ?
+					   1U : 0U, i);
 
 	return aq_hw_err_from_flags(self);
 }
@@ -1076,7 +1086,7 @@ static int hw_atl_b0_hw_vlan_set(struct
 static int hw_atl_b0_hw_vlan_ctrl(struct aq_hw_s *self, bool enable)
 {
 	/* set promisc in case of disabing the vland filter */
-	hw_atl_rpf_vlan_prom_mode_en_set(self, !!!enable);
+	hw_atl_rpf_vlan_prom_mode_en_set(self, !enable);
 
 	return aq_hw_err_from_flags(self);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c	2019-07-28 02:28:39.000000000 -0400
@@ -335,13 +335,13 @@ static int hw_atl_utils_fw_upload_dwords
 {
 	u32 val;
 	int err = 0;
-	bool is_locked;
 
-	is_locked = hw_atl_sem_ram_get(self);
-	if (!is_locked) {
-		err = -ETIME;
+	err = readx_poll_timeout_atomic(hw_atl_sem_ram_get, self,
+					val, val == 1U,
+					10U, 100000U);
+	if (err < 0)
 		goto err_exit;
-	}
+
 	if (IS_CHIP_FEATURE(REVISION_B1)) {
 		u32 offset = 0;
 
@@ -353,8 +353,8 @@ static int hw_atl_utils_fw_upload_dwords
 			/* 1000 times by 10us = 10ms */
 			err = readx_poll_timeout_atomic(hw_atl_scrpad12_get,
 							self, val,
-							(val & 0xF0000000) ==
-							 0x80000000,
+							(val & 0xF0000000) !=
+							0x80000000,
 							10U, 10000U);
 		}
 	} else {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c	2019-07-28 02:28:39.000000000 -0400
@@ -349,7 +349,7 @@ static int aq_fw2x_set_sleep_proxy(struc
 	err = readx_poll_timeout_atomic(aq_fw2x_state2_get,
 					self, val,
 					val & HW_ATL_FW2X_CTRL_SLEEP_PROXY,
-					1U, 10000U);
+					1U, 100000U);
 
 err_exit:
 	return err;
@@ -369,6 +369,8 @@ static int aq_fw2x_set_wol_params(struct
 
 	msg = (struct fw2x_msg_wol *)rpc;
 
+	memset(msg, 0, sizeof(*msg));
+
 	msg->msg_id = HAL_ATLANTIC_UTILS_FW2X_MSG_WOL;
 	msg->magic_packet_enabled = true;
 	memcpy(msg->hw_addr, mac, ETH_ALEN);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c	2019-05-05 21:31:19.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c	2019-07-28 13:33:33.000000000 -0400
@@ -285,6 +285,9 @@ int bnx2x_tx_int(struct bnx2x *bp, struc
 	hw_cons = le16_to_cpu(*txdata->tx_cons_sb);
 	sw_cons = txdata->tx_pkt_cons;
 
+	/* Ensure subsequent loads occur after hw_cons */
+	smp_rmb();
+
 	while (sw_cons != hw_cons) {
 		u16 pkt_cons;
 
@@ -3857,9 +3860,12 @@ netdev_tx_t bnx2x_start_xmit(struct sk_b
 
 	if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
 		if (!(bp->flags & TX_TIMESTAMPING_EN)) {
+			bp->eth_stats.ptp_skip_tx_ts++;
 			BNX2X_ERR("Tx timestamping was not enabled, this packet will not be timestamped\n");
 		} else if (bp->ptp_tx_skb) {
-			BNX2X_ERR("The device supports only a single outstanding packet to timestamp, this packet will not be timestamped\n");
+			bp->eth_stats.ptp_skip_tx_ts++;
+			netdev_err_once(bp->dev,
+					"Device supports only a single outstanding packet to timestamp, this packet won't be timestamped\n");
 		} else {
 			skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
 			/* schedule check for Tx timestamp */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c	2019-05-05 21:31:19.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c	2019-07-28 13:33:33.000000000 -0400
@@ -182,7 +182,9 @@ static const struct {
 	{ STATS_OFFSET32(driver_filtered_tx_pkt),
 				4, false, "driver_filtered_tx_pkt" },
 	{ STATS_OFFSET32(eee_tx_lpi),
-				4, true, "Tx LPI entry count"}
+				4, true, "Tx LPI entry count"},
+	{ STATS_OFFSET32(ptp_skip_tx_ts),
+				4, false, "ptp_skipped_tx_tstamp" },
 };
 
 #define BNX2X_NUM_STATS		ARRAY_SIZE(bnx2x_stats_arr)
@@ -1607,7 +1609,8 @@ static int bnx2x_get_module_info(struct
 	}
 
 	if (!sff8472_comp ||
-	    (diag_type & SFP_EEPROM_DIAG_ADDR_CHANGE_REQ)) {
+	    (diag_type & SFP_EEPROM_DIAG_ADDR_CHANGE_REQ) ||
+	    !(diag_type & SFP_EEPROM_DDM_IMPLEMENTED)) {
 		modinfo->type = ETH_MODULE_SFF_8079;
 		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
 	} else {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h	2019-07-28 02:28:39.000000000 -0400
@@ -62,6 +62,7 @@
 #define SFP_EEPROM_DIAG_TYPE_ADDR		0x5c
 #define SFP_EEPROM_DIAG_TYPE_SIZE		1
 #define SFP_EEPROM_DIAG_ADDR_CHANGE_REQ		(1<<2)
+#define SFP_EEPROM_DDM_IMPLEMENTED		(1<<6)
 #define SFP_EEPROM_SFF_8472_COMP_ADDR		0x5e
 #define SFP_EEPROM_SFF_8472_COMP_SIZE		1
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c	2019-05-05 21:31:14.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c	2019-07-28 13:33:27.000000000 -0400
@@ -15179,11 +15179,24 @@ static void bnx2x_ptp_task(struct work_s
 	u32 val_seq;
 	u64 timestamp, ns;
 	struct skb_shared_hwtstamps shhwtstamps;
+	bool bail = true;
+	int i;
 
-	/* Read Tx timestamp registers */
-	val_seq = REG_RD(bp, port ? NIG_REG_P1_TLLH_PTP_BUF_SEQID :
-			 NIG_REG_P0_TLLH_PTP_BUF_SEQID);
-	if (val_seq & 0x10000) {
+	/* FW may take a while to complete timestamping; try a bit and if it's
+	 * still not complete, may indicate an error state - bail out then.
+	 */
+	for (i = 0; i < 10; i++) {
+		/* Read Tx timestamp registers */
+		val_seq = REG_RD(bp, port ? NIG_REG_P1_TLLH_PTP_BUF_SEQID :
+				 NIG_REG_P0_TLLH_PTP_BUF_SEQID);
+		if (val_seq & 0x10000) {
+			bail = false;
+			break;
+		}
+		msleep(1 << i);
+	}
+
+	if (!bail) {
 		/* There is a valid timestamp value */
 		timestamp = REG_RD(bp, port ? NIG_REG_P1_TLLH_PTP_BUF_TS_MSB :
 				   NIG_REG_P0_TLLH_PTP_BUF_TS_MSB);
@@ -15198,16 +15211,18 @@ static void bnx2x_ptp_task(struct work_s
 		memset(&shhwtstamps, 0, sizeof(shhwtstamps));
 		shhwtstamps.hwtstamp = ns_to_ktime(ns);
 		skb_tstamp_tx(bp->ptp_tx_skb, &shhwtstamps);
-		dev_kfree_skb_any(bp->ptp_tx_skb);
-		bp->ptp_tx_skb = NULL;
 
 		DP(BNX2X_MSG_PTP, "Tx timestamp, timestamp cycles = %llu, ns = %llu\n",
 		   timestamp, ns);
 	} else {
-		DP(BNX2X_MSG_PTP, "There is no valid Tx timestamp yet\n");
-		/* Reschedule to keep checking for a valid timestamp value */
-		schedule_work(&bp->ptp_task);
+		DP(BNX2X_MSG_PTP,
+		   "Tx timestamp is not recorded (register read=%u)\n",
+		   val_seq);
+		bp->eth_stats.ptp_skip_tx_ts++;
 	}
+
+	dev_kfree_skb_any(bp->ptp_tx_skb);
+	bp->ptp_tx_skb = NULL;
 }
 
 void bnx2x_set_rx_ts(struct bnx2x *bp, struct sk_buff *skb)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h	2019-07-28 02:28:39.000000000 -0400
@@ -207,6 +207,9 @@ struct bnx2x_eth_stats {
 	u32 driver_filtered_tx_pkt;
 	/* src: Clear-on-Read register; Will not survive PMF Migration */
 	u32 eee_tx_lpi;
+
+	/* PTP */
+	u32 ptp_skip_tx_ts;
 };
 
 struct bnx2x_eth_q_stats {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c	2019-07-28 02:28:39.000000000 -0400
@@ -1640,6 +1640,8 @@ static int bnxt_rx_pkt(struct bnxt *bp,
 		skb = bnxt_copy_skb(bnapi, data_ptr, len, dma_addr);
 		bnxt_reuse_rx_data(rxr, cons, data);
 		if (!skb) {
+			if (agg_bufs)
+				bnxt_reuse_rx_agg_bufs(cpr, cp_cons, agg_bufs);
 			rc = -ENOMEM;
 			goto next_rx;
 		}
@@ -5479,7 +5481,16 @@ static int bnxt_cp_rings_in_use(struct b
 
 static int bnxt_get_func_stat_ctxs(struct bnxt *bp)
 {
-	return bp->cp_nr_rings + bnxt_get_ulp_stat_ctxs(bp);
+	int ulp_stat = bnxt_get_ulp_stat_ctxs(bp);
+	int cp = bp->cp_nr_rings;
+
+	if (!ulp_stat)
+		return cp;
+
+	if (bnxt_nq_rings_in_use(bp) > cp + bnxt_get_ulp_msix_num(bp))
+		return bnxt_get_ulp_msix_base(bp) + ulp_stat;
+
+	return cp + ulp_stat;
 }
 
 static bool bnxt_need_reserve_rings(struct bnxt *bp)
@@ -6340,7 +6351,7 @@ static int bnxt_alloc_ctx_mem(struct bnx
 	if (!ctx || (ctx->flags & BNXT_CTX_FLAG_INITED))
 		return 0;
 
-	if (bp->flags & BNXT_FLAG_ROCE_CAP) {
+	if ((bp->flags & BNXT_FLAG_ROCE_CAP) && !is_kdump_kernel()) {
 		pg_lvl = 2;
 		extra_qps = 65536;
 		extra_srqs = 8192;
@@ -7371,11 +7382,7 @@ unsigned int bnxt_get_avail_cp_rings_for
 
 unsigned int bnxt_get_avail_stat_ctxs_for_en(struct bnxt *bp)
 {
-	unsigned int stat;
-
-	stat = bnxt_get_max_func_stat_ctxs(bp) - bnxt_get_ulp_stat_ctxs(bp);
-	stat -= bp->cp_nr_rings;
-	return stat;
+	return bnxt_get_max_func_stat_ctxs(bp) - bnxt_get_func_stat_ctxs(bp);
 }
 
 int bnxt_get_avail_msix(struct bnxt *bp, int num)
@@ -7512,22 +7519,23 @@ static void bnxt_clear_int_mode(struct b
 	bp->flags &= ~BNXT_FLAG_USING_MSIX;
 }
 
-int bnxt_reserve_rings(struct bnxt *bp)
+int bnxt_reserve_rings(struct bnxt *bp, bool irq_re_init)
 {
 	int tcs = netdev_get_num_tc(bp->dev);
-	bool reinit_irq = false;
+	bool irq_cleared = false;
 	int rc;
 
 	if (!bnxt_need_reserve_rings(bp))
 		return 0;
 
-	if (BNXT_NEW_RM(bp) && (bnxt_get_num_msix(bp) != bp->total_irqs)) {
+	if (irq_re_init && BNXT_NEW_RM(bp) &&
+	    bnxt_get_num_msix(bp) != bp->total_irqs) {
 		bnxt_ulp_irq_stop(bp);
 		bnxt_clear_int_mode(bp);
-		reinit_irq = true;
+		irq_cleared = true;
 	}
 	rc = __bnxt_reserve_rings(bp);
-	if (reinit_irq) {
+	if (irq_cleared) {
 		if (!rc)
 			rc = bnxt_init_int_mode(bp);
 		bnxt_ulp_irq_restart(bp, rc);
@@ -8426,7 +8434,7 @@ static int __bnxt_open_nic(struct bnxt *
 			return rc;
 		}
 	}
-	rc = bnxt_reserve_rings(bp);
+	rc = bnxt_reserve_rings(bp, irq_re_init);
 	if (rc)
 		return rc;
 	if ((bp->flags & BNXT_FLAG_RFS) &&
@@ -10162,10 +10170,10 @@ static void bnxt_remove_one(struct pci_d
 	bnxt_dcb_free(bp);
 	kfree(bp->edev);
 	bp->edev = NULL;
+	bnxt_cleanup_pci(bp);
 	bnxt_free_ctx_mem(bp);
 	kfree(bp->ctx);
 	bp->ctx = NULL;
-	bnxt_cleanup_pci(bp);
 	bnxt_free_port_stats(bp);
 	free_netdev(dev);
 }
@@ -10337,7 +10345,7 @@ static int bnxt_set_dflt_rings(struct bn
 
 	if (sh)
 		bp->flags |= BNXT_FLAG_SHARED_RINGS;
-	dflt_rings = netif_get_num_default_rss_queues();
+	dflt_rings = is_kdump_kernel() ? 1 : netif_get_num_default_rss_queues();
 	/* Reduce default rings on multi-port cards so that total default
 	 * rings do not exceed CPU count.
 	 */
@@ -10727,6 +10735,7 @@ static void bnxt_shutdown(struct pci_dev
 
 	if (system_state == SYSTEM_POWER_OFF) {
 		bnxt_clear_int_mode(bp);
+		pci_disable_device(pdev);
 		pci_wake_from_d3(pdev, bp->wol);
 		pci_set_power_state(pdev, PCI_D3hot);
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -788,7 +788,7 @@ static int bnxt_set_channels(struct net_
 			 */
 		}
 	} else {
-		rc = bnxt_reserve_rings(bp);
+		rc = bnxt_reserve_rings(bp, true);
 	}
 
 	return rc;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.h linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.h	2019-07-28 02:28:39.000000000 -0400
@@ -20,6 +20,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/rhashtable.h>
+#include <linux/crash_dump.h>
 #include <net/devlink.h>
 #include <net/dst_metadata.h>
 #include <net/xdp.h>
@@ -1367,7 +1368,8 @@ struct bnxt {
 #define BNXT_CHIP_TYPE_NITRO_A0(bp) ((bp)->flags & BNXT_FLAG_CHIP_NITRO_A0)
 #define BNXT_RX_PAGE_MODE(bp)	((bp)->flags & BNXT_FLAG_RX_PAGE_MODE)
 #define BNXT_SUPPORTS_TPA(bp)	(!BNXT_CHIP_TYPE_NITRO_A0(bp) &&	\
-				 !(bp->flags & BNXT_FLAG_CHIP_P5))
+				 !(bp->flags & BNXT_FLAG_CHIP_P5) &&	\
+				 !is_kdump_kernel())
 
 /* Chip class phase 5 */
 #define BNXT_CHIP_P5(bp)			\
@@ -1778,7 +1780,7 @@ unsigned int bnxt_get_avail_stat_ctxs_fo
 unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp);
 unsigned int bnxt_get_avail_cp_rings_for_en(struct bnxt *bp);
 int bnxt_get_avail_msix(struct bnxt *bp, int num);
-int bnxt_reserve_rings(struct bnxt *bp);
+int bnxt_reserve_rings(struct bnxt *bp, bool irq_re_init);
 void bnxt_tx_disable(struct bnxt *bp);
 void bnxt_tx_enable(struct bnxt *bp);
 int bnxt_hwrm_set_pause(struct bnxt *);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c	2019-07-28 02:28:39.000000000 -0400
@@ -147,7 +147,7 @@ static int bnxt_req_msix_vecs(struct bnx
 			bnxt_close_nic(bp, true, false);
 			rc = bnxt_open_nic(bp, true, false);
 		} else {
-			rc = bnxt_reserve_rings(bp);
+			rc = bnxt_reserve_rings(bp, true);
 		}
 	}
 	if (rc) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c	2019-07-28 02:28:39.000000000 -0400
@@ -3086,39 +3086,42 @@ static void bcmgenet_timeout(struct net_
 	netif_tx_wake_all_queues(dev);
 }
 
-#define MAX_MC_COUNT	16
+#define MAX_MDF_FILTER	17
 
 static inline void bcmgenet_set_mdf_addr(struct bcmgenet_priv *priv,
 					 unsigned char *addr,
-					 int *i,
-					 int *mc)
+					 int *i)
 {
-	u32 reg;
-
 	bcmgenet_umac_writel(priv, addr[0] << 8 | addr[1],
 			     UMAC_MDF_ADDR + (*i * 4));
 	bcmgenet_umac_writel(priv, addr[2] << 24 | addr[3] << 16 |
 			     addr[4] << 8 | addr[5],
 			     UMAC_MDF_ADDR + ((*i + 1) * 4));
-	reg = bcmgenet_umac_readl(priv, UMAC_MDF_CTRL);
-	reg |= (1 << (MAX_MC_COUNT - *mc));
-	bcmgenet_umac_writel(priv, reg, UMAC_MDF_CTRL);
 	*i += 2;
-	(*mc)++;
 }
 
 static void bcmgenet_set_rx_mode(struct net_device *dev)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
 	struct netdev_hw_addr *ha;
-	int i, mc;
+	int i, nfilter;
 	u32 reg;
 
 	netif_dbg(priv, hw, dev, "%s: %08X\n", __func__, dev->flags);
 
-	/* Promiscuous mode */
+	/* Number of filters needed */
+	nfilter = netdev_uc_count(dev) + netdev_mc_count(dev) + 2;
+
+	/*
+	 * Turn on promicuous mode for three scenarios
+	 * 1. IFF_PROMISC flag is set
+	 * 2. IFF_ALLMULTI flag is set
+	 * 3. The number of filters needed exceeds the number filters
+	 *    supported by the hardware.
+	*/
 	reg = bcmgenet_umac_readl(priv, UMAC_CMD);
-	if (dev->flags & IFF_PROMISC) {
+	if ((dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) ||
+	    (nfilter > MAX_MDF_FILTER)) {
 		reg |= CMD_PROMISC;
 		bcmgenet_umac_writel(priv, reg, UMAC_CMD);
 		bcmgenet_umac_writel(priv, 0, UMAC_MDF_CTRL);
@@ -3128,32 +3131,24 @@ static void bcmgenet_set_rx_mode(struct
 		bcmgenet_umac_writel(priv, reg, UMAC_CMD);
 	}
 
-	/* UniMac doesn't support ALLMULTI */
-	if (dev->flags & IFF_ALLMULTI) {
-		netdev_warn(dev, "ALLMULTI is not supported\n");
-		return;
-	}
-
 	/* update MDF filter */
 	i = 0;
-	mc = 0;
 	/* Broadcast */
-	bcmgenet_set_mdf_addr(priv, dev->broadcast, &i, &mc);
+	bcmgenet_set_mdf_addr(priv, dev->broadcast, &i);
 	/* my own address.*/
-	bcmgenet_set_mdf_addr(priv, dev->dev_addr, &i, &mc);
-	/* Unicast list*/
-	if (netdev_uc_count(dev) > (MAX_MC_COUNT - mc))
-		return;
+	bcmgenet_set_mdf_addr(priv, dev->dev_addr, &i);
 
-	if (!netdev_uc_empty(dev))
-		netdev_for_each_uc_addr(ha, dev)
-			bcmgenet_set_mdf_addr(priv, ha->addr, &i, &mc);
-	/* Multicast */
-	if (netdev_mc_empty(dev) || netdev_mc_count(dev) >= (MAX_MC_COUNT - mc))
-		return;
+	/* Unicast */
+	netdev_for_each_uc_addr(ha, dev)
+		bcmgenet_set_mdf_addr(priv, ha->addr, &i);
 
+	/* Multicast */
 	netdev_for_each_mc_addr(ha, dev)
-		bcmgenet_set_mdf_addr(priv, ha->addr, &i, &mc);
+		bcmgenet_set_mdf_addr(priv, ha->addr, &i);
+
+	/* Enable filters */
+	reg = GENMASK(MAX_MDF_FILTER - 1, MAX_MDF_FILTER - nfilter);
+	bcmgenet_umac_writel(priv, reg, UMAC_MDF_CTRL);
 }
 
 /* Set the hardware MAC address. */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/cadence/macb_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/cadence/macb_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/cadence/macb_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/cadence/macb_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -2461,12 +2461,12 @@ static int macb_open(struct net_device *
 		goto pm_exit;
 	}
 
-	bp->macbgem_ops.mog_init_rings(bp);
-	macb_init_hw(bp);
-
 	for (q = 0, queue = bp->queues; q < bp->num_queues; ++q, ++queue)
 		napi_enable(&queue->napi);
 
+	bp->macbgem_ops.mog_init_rings(bp);
+	macb_init_hw(bp);
+
 	/* schedule a link state check */
 	phy_start(dev->phydev);
 
@@ -3377,7 +3377,7 @@ static int macb_clk_init(struct platform
 		if (!err)
 			err = -ENODEV;
 
-		dev_err(&pdev->dev, "failed to get macb_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to get macb_clk (%d)\n", err);
 		return err;
 	}
 
@@ -3386,7 +3386,7 @@ static int macb_clk_init(struct platform
 		if (!err)
 			err = -ENODEV;
 
-		dev_err(&pdev->dev, "failed to get hclk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to get hclk (%d)\n", err);
 		return err;
 	}
 
@@ -3404,31 +3404,31 @@ static int macb_clk_init(struct platform
 
 	err = clk_prepare_enable(*pclk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable pclk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable pclk (%d)\n", err);
 		return err;
 	}
 
 	err = clk_prepare_enable(*hclk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable hclk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable hclk (%d)\n", err);
 		goto err_disable_pclk;
 	}
 
 	err = clk_prepare_enable(*tx_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable tx_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable tx_clk (%d)\n", err);
 		goto err_disable_hclk;
 	}
 
 	err = clk_prepare_enable(*rx_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable rx_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable rx_clk (%d)\n", err);
 		goto err_disable_txclk;
 	}
 
 	err = clk_prepare_enable(*tsu_clk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable tsu_clk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable tsu_clk (%d)\n", err);
 		goto err_disable_rxclk;
 	}
 
@@ -3902,7 +3902,7 @@ static int at91ether_clk_init(struct pla
 
 	err = clk_prepare_enable(*pclk);
 	if (err) {
-		dev_err(&pdev->dev, "failed to enable pclk (%u)\n", err);
+		dev_err(&pdev->dev, "failed to enable pclk (%d)\n", err);
 		return err;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/cavium/liquidio/lio_core.c linux-libre-5.1.21-gnu/drivers/net/ethernet/cavium/liquidio/lio_core.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/cavium/liquidio/lio_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/cavium/liquidio/lio_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -964,7 +964,7 @@ static void liquidio_schedule_droq_pkt_h
 
 			if (droq->ops.poll_mode) {
 				droq->ops.napi_fn(droq);
-				oct_priv->napi_mask |= (1 << oq_no);
+				oct_priv->napi_mask |= BIT_ULL(oq_no);
 			} else {
 				tasklet_schedule(&oct_priv->droq_tasklet);
 			}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/chelsio/cxgb3/l2t.h linux-libre-5.1.21-gnu/drivers/net/ethernet/chelsio/cxgb3/l2t.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/chelsio/cxgb3/l2t.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/chelsio/cxgb3/l2t.h	2019-07-28 02:28:39.000000000 -0400
@@ -75,8 +75,8 @@ struct l2t_data {
 	struct l2t_entry *rover;	/* starting point for next allocation */
 	atomic_t nfree;		/* number of free entries */
 	rwlock_t lock;
-	struct l2t_entry l2tab[0];
 	struct rcu_head rcu_head;	/* to handle rcu cleanup */
+	struct l2t_entry l2tab[];
 };
 
 typedef void (*arp_failure_handler_func)(struct t3cdev * dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c	2019-05-05 21:31:46.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c	2019-07-28 13:34:03.000000000 -0400
@@ -6159,15 +6159,24 @@ static int __init cxgb4_init_module(void
 
 	ret = pci_register_driver(&cxgb4_driver);
 	if (ret < 0)
-		debugfs_remove(cxgb4_debugfs_root);
+		goto err_pci;
 
 #if IS_ENABLED(CONFIG_IPV6)
 	if (!inet6addr_registered) {
-		register_inet6addr_notifier(&cxgb4_inet6addr_notifier);
-		inet6addr_registered = true;
+		ret = register_inet6addr_notifier(&cxgb4_inet6addr_notifier);
+		if (ret)
+			pci_unregister_driver(&cxgb4_driver);
+		else
+			inet6addr_registered = true;
 	}
 #endif
 
+	if (ret == 0)
+		return ret;
+
+err_pci:
+	debugfs_remove(cxgb4_debugfs_root);
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c linux-libre-5.1.21-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c	2019-07-28 02:28:39.000000000 -0400
@@ -197,6 +197,9 @@ static void cxgb4_process_flow_match(str
 		fs->val.ivlan = vlan_tci;
 		fs->mask.ivlan = vlan_tci_mask;
 
+		fs->val.ivlan_vld = 1;
+		fs->mask.ivlan_vld = 1;
+
 		/* Chelsio adapters use ivlan_vld bit to match vlan packets
 		 * as 802.1Q. Also, when vlan tag is present in packets,
 		 * ethtype match is used then to match on ethtype of inner
@@ -207,8 +210,6 @@ static void cxgb4_process_flow_match(str
 		 * ethtype value with ethtype of inner header.
 		 */
 		if (fs->val.ethtype == ETH_P_8021Q) {
-			fs->val.ivlan_vld = 1;
-			fs->mask.ivlan_vld = 1;
 			fs->val.ethtype = 0;
 			fs->mask.ethtype = 0;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c linux-libre-5.1.21-gnu/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c	2019-07-28 02:28:39.000000000 -0400
@@ -7206,10 +7206,21 @@ int t4_fixup_host_params(struct adapter
 			 unsigned int cache_line_size)
 {
 	unsigned int page_shift = fls(page_size) - 1;
+	unsigned int sge_hps = page_shift - 10;
 	unsigned int stat_len = cache_line_size > 64 ? 128 : 64;
 	unsigned int fl_align = cache_line_size < 32 ? 32 : cache_line_size;
 	unsigned int fl_align_log = fls(fl_align) - 1;
 
+	t4_write_reg(adap, SGE_HOST_PAGE_SIZE_A,
+		     HOSTPAGESIZEPF0_V(sge_hps) |
+		     HOSTPAGESIZEPF1_V(sge_hps) |
+		     HOSTPAGESIZEPF2_V(sge_hps) |
+		     HOSTPAGESIZEPF3_V(sge_hps) |
+		     HOSTPAGESIZEPF4_V(sge_hps) |
+		     HOSTPAGESIZEPF5_V(sge_hps) |
+		     HOSTPAGESIZEPF6_V(sge_hps) |
+		     HOSTPAGESIZEPF7_V(sge_hps));
+
 	if (is_t4(adap->params.chip)) {
 		t4_set_reg_field(adap, SGE_CONTROL_A,
 				 INGPADBOUNDARY_V(INGPADBOUNDARY_M) |
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/dec/tulip/de4x5.c linux-libre-5.1.21-gnu/drivers/net/ethernet/dec/tulip/de4x5.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/dec/tulip/de4x5.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/dec/tulip/de4x5.c	2019-07-28 02:28:39.000000000 -0400
@@ -2107,7 +2107,6 @@ static struct eisa_driver de4x5_eisa_dri
 		.remove  = de4x5_eisa_remove,
         }
 };
-MODULE_DEVICE_TABLE(eisa, de4x5_eisa_ids);
 #endif
 
 #ifdef CONFIG_PCI
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/emulex/benet/be_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/emulex/benet/be_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/emulex/benet/be_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/emulex/benet/be_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -895,7 +895,7 @@ static void be_self_test(struct net_devi
 			 u64 *data)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
-	int status;
+	int status, cnt;
 	u8 link_status = 0;
 
 	if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) {
@@ -906,6 +906,9 @@ static void be_self_test(struct net_devi
 
 	memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM);
 
+	/* check link status before offline tests */
+	link_status = netif_carrier_ok(netdev);
+
 	if (test->flags & ETH_TEST_FL_OFFLINE) {
 		if (be_loopback_test(adapter, BE_MAC_LOOPBACK, &data[0]) != 0)
 			test->flags |= ETH_TEST_FL_FAILED;
@@ -926,13 +929,26 @@ static void be_self_test(struct net_devi
 		test->flags |= ETH_TEST_FL_FAILED;
 	}
 
-	status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
-	if (status) {
-		test->flags |= ETH_TEST_FL_FAILED;
-		data[4] = -1;
-	} else if (!link_status) {
+	/* link status was down prior to test */
+	if (!link_status) {
 		test->flags |= ETH_TEST_FL_FAILED;
 		data[4] = 1;
+		return;
+	}
+
+	for (cnt = 10; cnt; cnt--) {
+		status = be_cmd_link_status_query(adapter, NULL, &link_status,
+						  0);
+		if (status) {
+			test->flags |= ETH_TEST_FL_FAILED;
+			data[4] = -1;
+			break;
+		}
+
+		if (link_status)
+			break;
+
+		msleep_interruptible(500);
 	}
 }
 
@@ -1105,7 +1121,7 @@ static int be_get_rxnfc(struct net_devic
 		cmd->data = be_get_rss_hash_opts(adapter, cmd->flow_type);
 		break;
 	case ETHTOOL_GRXRINGS:
-		cmd->data = adapter->num_rx_qs - 1;
+		cmd->data = adapter->num_rx_qs;
 		break;
 	default:
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c	2019-07-28 02:28:39.000000000 -0400
@@ -780,7 +780,7 @@ static void dpaa_eth_add_channel(u16 cha
 	struct qman_portal *portal;
 	int cpu;
 
-	for_each_cpu(cpu, cpus) {
+	for_each_cpu_and(cpu, cpus, cpu_online_mask) {
 		portal = qman_get_affine_portal(cpu);
 		qman_p_static_dequeue_add(portal, pool);
 	}
@@ -896,7 +896,7 @@ static void dpaa_fq_setup(struct dpaa_pr
 	u16 channels[NR_CPUS];
 	struct dpaa_fq *fq;
 
-	for_each_cpu(cpu, affine_cpus)
+	for_each_cpu_and(cpu, affine_cpus, cpu_online_mask)
 		channels[num_portals++] = qman_affine_channel(cpu);
 
 	if (num_portals == 0)
@@ -1648,7 +1648,7 @@ static struct sk_buff *dpaa_cleanup_tx_f
 				 qm_sg_entry_get_len(&sgt[0]), dma_dir);
 
 		/* remaining pages were mapped with skb_frag_dma_map() */
-		for (i = 1; i < nr_frags; i++) {
+		for (i = 1; i <= nr_frags; i++) {
 			WARN_ON(qm_sg_entry_is_ext(&sgt[i]));
 
 			dma_unmap_page(dev, qm_sg_addr(&sgt[i]),
@@ -2174,7 +2174,6 @@ static int dpaa_eth_poll(struct napi_str
 	if (cleaned < budget) {
 		napi_complete_done(napi, cleaned);
 		qman_p_irqsource_add(np->p, QM_PIRQ_DQRI);
-
 	} else if (np->down) {
 		qman_p_irqsource_add(np->p, QM_PIRQ_DQRI);
 	}
@@ -2448,7 +2447,7 @@ static void dpaa_eth_napi_enable(struct
 	struct dpaa_percpu_priv *percpu_priv;
 	int i;
 
-	for_each_possible_cpu(i) {
+	for_each_online_cpu(i) {
 		percpu_priv = per_cpu_ptr(priv->percpu_priv, i);
 
 		percpu_priv->np.down = 0;
@@ -2461,7 +2460,7 @@ static void dpaa_eth_napi_disable(struct
 	struct dpaa_percpu_priv *percpu_priv;
 	int i;
 
-	for_each_possible_cpu(i) {
+	for_each_online_cpu(i) {
 		percpu_priv = per_cpu_ptr(priv->percpu_priv, i);
 
 		percpu_priv->np.down = 1;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -569,7 +569,7 @@ static int dpaa_set_coalesce(struct net_
 	qman_dqrr_get_ithresh(portal, &prev_thresh);
 
 	/* set new values */
-	for_each_cpu(cpu, cpus) {
+	for_each_cpu_and(cpu, cpus, cpu_online_mask) {
 		portal = qman_get_affine_portal(cpu);
 		res = qman_portal_set_iperiod(portal, period);
 		if (res)
@@ -586,7 +586,7 @@ static int dpaa_set_coalesce(struct net_
 
 revert_values:
 	/* restore previous values */
-	for_each_cpu(cpu, cpus) {
+	for_each_cpu_and(cpu, cpus, cpu_online_mask) {
 		if (!needs_revert[cpu])
 			continue;
 		portal = qman_get_affine_portal(cpu);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c	2019-07-28 02:28:39.000000000 -0400
@@ -1966,7 +1966,7 @@ alloc_channel(struct dpaa2_eth_priv *pri
 
 	channel->dpcon = setup_dpcon(priv);
 	if (IS_ERR_OR_NULL(channel->dpcon)) {
-		err = PTR_ERR(channel->dpcon);
+		err = PTR_ERR_OR_ZERO(channel->dpcon);
 		goto err_setup;
 	}
 
@@ -2022,7 +2022,7 @@ static int setup_dpio(struct dpaa2_eth_p
 		/* Try to allocate a channel */
 		channel = alloc_channel(priv);
 		if (IS_ERR_OR_NULL(channel)) {
-			err = PTR_ERR(channel);
+			err = PTR_ERR_OR_ZERO(channel);
 			if (err != -EPROBE_DEFER)
 				dev_info(dev,
 					 "No affine channel for cpu %d and above\n", i);
@@ -2796,6 +2796,7 @@ int dpaa2_eth_set_hash(struct net_device
 static int dpaa2_eth_set_cls(struct dpaa2_eth_priv *priv)
 {
 	struct device *dev = priv->net_dev->dev.parent;
+	int err;
 
 	/* Check if we actually support Rx flow classification */
 	if (dpaa2_eth_has_legacy_dist(priv)) {
@@ -2814,9 +2815,13 @@ static int dpaa2_eth_set_cls(struct dpaa
 		return -EOPNOTSUPP;
 	}
 
+	err = dpaa2_eth_set_dist_key(priv->net_dev, DPAA2_ETH_RX_DIST_CLS, 0);
+	if (err)
+		return err;
+
 	priv->rx_cls_enabled = 1;
 
-	return dpaa2_eth_set_dist_key(priv->net_dev, DPAA2_ETH_RX_DIST_CLS, 0);
+	return 0;
 }
 
 /* Bind the DPNI to its needed objects and resources: buffer pool, DPIOs,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -4,6 +4,7 @@
  */
 
 #include <linux/net_tstamp.h>
+#include <linux/nospec.h>
 
 #include "dpni.h"	/* DPNI_LINK_OPT_* */
 #include "dpaa2-eth.h"
@@ -589,6 +590,8 @@ static int dpaa2_eth_get_rxnfc(struct ne
 	case ETHTOOL_GRXCLSRULE:
 		if (rxnfc->fs.location >= max_rules)
 			return -EINVAL;
+		rxnfc->fs.location = array_index_nospec(rxnfc->fs.location,
+							max_rules);
 		if (!priv->cls_rules[rxnfc->fs.location].in_use)
 			return -EINVAL;
 		rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/freescale/enetc/enetc.c linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/enetc/enetc.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/freescale/enetc/enetc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/enetc/enetc.c	2019-07-28 02:28:39.000000000 -0400
@@ -313,7 +313,9 @@ static bool enetc_clean_tx_ring(struct e
 	while (bds_to_clean && tx_frm_cnt < ENETC_DEFAULT_TX_WORK) {
 		bool is_eof = !!tx_swbd->skb;
 
-		enetc_unmap_tx_buff(tx_ring, tx_swbd);
+		if (likely(tx_swbd->dma))
+			enetc_unmap_tx_buff(tx_ring, tx_swbd);
+
 		if (is_eof) {
 			napi_consume_skb(tx_swbd->skb, napi_budget);
 			tx_swbd->skb = NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/freescale/fec_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/fec_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/freescale/fec_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/fec_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1689,10 +1689,10 @@ static void fec_get_mac(struct net_devic
 	 */
 	if (!is_valid_ether_addr(iap)) {
 		/* Report it and use a random ethernet address instead */
-		netdev_err(ndev, "Invalid MAC address: %pM\n", iap);
+		dev_err(&fep->pdev->dev, "Invalid MAC address: %pM\n", iap);
 		eth_hw_addr_random(ndev);
-		netdev_info(ndev, "Using random MAC address: %pM\n",
-			    ndev->dev_addr);
+		dev_info(&fep->pdev->dev, "Using random MAC address: %pM\n",
+			 ndev->dev_addr);
 		return;
 	}
 
@@ -3556,7 +3556,7 @@ failed_init:
 	if (fep->reg_phy)
 		regulator_disable(fep->reg_phy);
 failed_reset:
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 failed_regulator:
 	clk_disable_unprepare(fep->clk_ahb);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/freescale/ucc_geth_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/ucc_geth_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/freescale/ucc_geth_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/freescale/ucc_geth_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -252,14 +252,12 @@ uec_set_ringparam(struct net_device *net
 		return -EINVAL;
 	}
 
+	if (netif_running(netdev))
+		return -EBUSY;
+
 	ug_info->bdRingLenRx[queue] = ring->rx_pending;
 	ug_info->bdRingLenTx[queue] = ring->tx_pending;
 
-	if (netif_running(netdev)) {
-		/* FIXME: restart automatically */
-		netdev_info(netdev, "Please re-open the interface\n");
-	}
-
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -339,6 +339,7 @@ static int __lb_setup(struct net_device
 static int __lb_up(struct net_device *ndev,
 		   enum hnae_loop loop_mode)
 {
+#define NIC_LB_TEST_WAIT_PHY_LINK_TIME 300
 	struct hns_nic_priv *priv = netdev_priv(ndev);
 	struct hnae_handle *h = priv->ae_handle;
 	int speed, duplex;
@@ -365,6 +366,9 @@ static int __lb_up(struct net_device *nd
 
 	h->dev->ops->adjust_link(h, speed, duplex);
 
+	/* wait adjust link done and phy ready */
+	msleep(NIC_LB_TEST_WAIT_PHY_LINK_TIME);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h	2019-07-28 02:28:39.000000000 -0400
@@ -107,7 +107,7 @@ struct hclgevf_mbx_arq_ring {
 	struct hclgevf_dev *hdev;
 	u32 head;
 	u32 tail;
-	u32 count;
+	atomic_t count;
 	u16 msg_q[HCLGE_MBX_MAX_ARQ_MSG_NUM][HCLGE_MBX_MAX_ARQ_MSG_SIZE];
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hnae3.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hnae3.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hnae3.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hnae3.c	2019-07-28 02:28:39.000000000 -0400
@@ -247,6 +247,7 @@ void hnae3_unregister_ae_algo(struct hna
 
 		ae_algo->ops->uninit_ae_dev(ae_dev);
 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
+		ae_dev->ops = NULL;
 	}
 
 	list_del(&ae_algo->node);
@@ -347,6 +348,7 @@ void hnae3_unregister_ae_dev(struct hnae
 
 		ae_algo->ops->uninit_ae_dev(ae_dev);
 		hnae3_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
+		ae_dev->ops = NULL;
 	}
 
 	list_del(&ae_dev->node);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c	2019-07-28 02:28:39.000000000 -0400
@@ -4,6 +4,9 @@
 #include <linux/dma-mapping.h>
 #include <linux/etherdevice.h>
 #include <linux/interrupt.h>
+#ifdef CONFIG_RFS_ACCEL
+#include <linux/cpu_rmap.h>
+#endif
 #include <linux/if_vlan.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
@@ -24,8 +27,7 @@
 #define hns3_set_field(origin, shift, val)	((origin) |= ((val) << (shift)))
 #define hns3_tx_bd_count(S)	DIV_ROUND_UP(S, HNS3_MAX_BD_SIZE)
 
-static void hns3_clear_all_ring(struct hnae3_handle *h);
-static void hns3_force_clear_all_rx_ring(struct hnae3_handle *h);
+static void hns3_clear_all_ring(struct hnae3_handle *h, bool force);
 static void hns3_remove_hw_addr(struct net_device *netdev);
 
 static const char hns3_driver_name[] = "hns3";
@@ -72,23 +74,6 @@ static irqreturn_t hns3_irq_handle(int i
 	return IRQ_HANDLED;
 }
 
-/* This callback function is used to set affinity changes to the irq affinity
- * masks when the irq_set_affinity_notifier function is used.
- */
-static void hns3_nic_irq_affinity_notify(struct irq_affinity_notify *notify,
-					 const cpumask_t *mask)
-{
-	struct hns3_enet_tqp_vector *tqp_vectors =
-		container_of(notify, struct hns3_enet_tqp_vector,
-			     affinity_notify);
-
-	tqp_vectors->affinity_mask = *mask;
-}
-
-static void hns3_nic_irq_affinity_release(struct kref *ref)
-{
-}
-
 static void hns3_nic_uninit_irq(struct hns3_nic_priv *priv)
 {
 	struct hns3_enet_tqp_vector *tqp_vectors;
@@ -100,8 +85,7 @@ static void hns3_nic_uninit_irq(struct h
 		if (tqp_vectors->irq_init_flag != HNS3_VECTOR_INITED)
 			continue;
 
-		/* clear the affinity notifier and affinity mask */
-		irq_set_affinity_notifier(tqp_vectors->vector_irq, NULL);
+		/* clear the affinity mask */
 		irq_set_affinity_hint(tqp_vectors->vector_irq, NULL);
 
 		/* release the irq resource */
@@ -154,12 +138,6 @@ static int hns3_nic_init_irq(struct hns3
 			return ret;
 		}
 
-		tqp_vectors->affinity_notify.notify =
-					hns3_nic_irq_affinity_notify;
-		tqp_vectors->affinity_notify.release =
-					hns3_nic_irq_affinity_release;
-		irq_set_affinity_notifier(tqp_vectors->vector_irq,
-					  &tqp_vectors->affinity_notify);
 		irq_set_affinity_hint(tqp_vectors->vector_irq,
 				      &tqp_vectors->affinity_mask);
 
@@ -333,6 +311,40 @@ static void hns3_tqp_disable(struct hnae
 	hns3_write_dev(tqp, HNS3_RING_EN_REG, rcb_reg);
 }
 
+static void hns3_free_rx_cpu_rmap(struct net_device *netdev)
+{
+#ifdef CONFIG_RFS_ACCEL
+	free_irq_cpu_rmap(netdev->rx_cpu_rmap);
+	netdev->rx_cpu_rmap = NULL;
+#endif
+}
+
+static int hns3_set_rx_cpu_rmap(struct net_device *netdev)
+{
+#ifdef CONFIG_RFS_ACCEL
+	struct hns3_nic_priv *priv = netdev_priv(netdev);
+	struct hns3_enet_tqp_vector *tqp_vector;
+	int i, ret;
+
+	if (!netdev->rx_cpu_rmap) {
+		netdev->rx_cpu_rmap = alloc_irq_cpu_rmap(priv->vector_num);
+		if (!netdev->rx_cpu_rmap)
+			return -ENOMEM;
+	}
+
+	for (i = 0; i < priv->vector_num; i++) {
+		tqp_vector = &priv->tqp_vector[i];
+		ret = irq_cpu_rmap_add(netdev->rx_cpu_rmap,
+				       tqp_vector->vector_irq);
+		if (ret) {
+			hns3_free_rx_cpu_rmap(netdev);
+			return ret;
+		}
+	}
+#endif
+	return 0;
+}
+
 static int hns3_nic_net_up(struct net_device *netdev)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
@@ -344,11 +356,16 @@ static int hns3_nic_net_up(struct net_de
 	if (ret)
 		return ret;
 
+	/* the device can work without cpu rmap, only aRFS needs it */
+	ret = hns3_set_rx_cpu_rmap(netdev);
+	if (ret)
+		netdev_warn(netdev, "set rx cpu rmap fail, ret=%d!\n", ret);
+
 	/* get irq resource for all vectors */
 	ret = hns3_nic_init_irq(priv);
 	if (ret) {
 		netdev_err(netdev, "hns init irq failed! ret=%d\n", ret);
-		return ret;
+		goto free_rmap;
 	}
 
 	clear_bit(HNS3_NIC_STATE_DOWN, &priv->state);
@@ -377,7 +394,8 @@ out_start_err:
 		hns3_vector_disable(&priv->tqp_vector[j]);
 
 	hns3_nic_uninit_irq(priv);
-
+free_rmap:
+	hns3_free_rx_cpu_rmap(netdev);
 	return ret;
 }
 
@@ -440,6 +458,20 @@ static int hns3_nic_net_open(struct net_
 	return 0;
 }
 
+static void hns3_reset_tx_queue(struct hnae3_handle *h)
+{
+	struct net_device *ndev = h->kinfo.netdev;
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct netdev_queue *dev_queue;
+	u32 i;
+
+	for (i = 0; i < h->kinfo.num_tqps; i++) {
+		dev_queue = netdev_get_tx_queue(ndev,
+						priv->ring_data[i].queue_index);
+		netdev_tx_reset_queue(dev_queue);
+	}
+}
+
 static void hns3_nic_net_down(struct net_device *netdev)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
@@ -460,10 +492,19 @@ static void hns3_nic_net_down(struct net
 	if (ops->stop)
 		ops->stop(priv->ae_handle);
 
+	hns3_free_rx_cpu_rmap(netdev);
+
 	/* free irq resources */
 	hns3_nic_uninit_irq(priv);
 
-	hns3_clear_all_ring(priv->ae_handle);
+	/* delay ring buffer clearing to hns3_reset_notify_uninit_enet
+	 * during reset process, because driver may not be able
+	 * to disable the ring through firmware when downing the netdev.
+	 */
+	if (!hns3_nic_resetting(netdev))
+		hns3_clear_all_ring(priv->ae_handle, false);
+
+	hns3_reset_tx_queue(priv->ae_handle);
 }
 
 static int hns3_nic_net_stop(struct net_device *netdev)
@@ -1476,12 +1517,12 @@ static void hns3_nic_get_stats64(struct
 static int hns3_setup_tc(struct net_device *netdev, void *type_data)
 {
 	struct tc_mqprio_qopt_offload *mqprio_qopt = type_data;
-	struct hnae3_handle *h = hns3_get_handle(netdev);
-	struct hnae3_knic_private_info *kinfo = &h->kinfo;
 	u8 *prio_tc = mqprio_qopt->qopt.prio_tc_map;
+	struct hnae3_knic_private_info *kinfo;
 	u8 tc = mqprio_qopt->qopt.num_tc;
 	u16 mode = mqprio_qopt->mode;
 	u8 hw = mqprio_qopt->qopt.hw;
+	struct hnae3_handle *h;
 
 	if (!((hw == TC_MQPRIO_HW_OFFLOAD_TCS &&
 	       mode == TC_MQPRIO_MODE_CHANNEL) || (!hw && tc == 0)))
@@ -1493,6 +1534,9 @@ static int hns3_setup_tc(struct net_devi
 	if (!netdev)
 		return -EINVAL;
 
+	h = hns3_get_handle(netdev);
+	kinfo = &h->kinfo;
+
 	return (kinfo->dcb_ops && kinfo->dcb_ops->setup_tc) ?
 		kinfo->dcb_ops->setup_tc(h, tc, prio_tc) : -EOPNOTSUPP;
 }
@@ -1826,9 +1870,9 @@ static pci_ers_result_t hns3_error_detec
 	if (state == pci_channel_io_perm_failure)
 		return PCI_ERS_RESULT_DISCONNECT;
 
-	if (!ae_dev) {
+	if (!ae_dev || !ae_dev->ops) {
 		dev_err(&pdev->dev,
-			"Can't recover - error happened during device init\n");
+			"Can't recover - error happened before device initialized\n");
 		return PCI_ERS_RESULT_NONE;
 	}
 
@@ -1847,6 +1891,9 @@ static pci_ers_result_t hns3_slot_reset(
 
 	dev_info(dev, "requesting reset due to PCI error\n");
 
+	if (!ae_dev || !ae_dev->ops)
+		return PCI_ERS_RESULT_NONE;
+
 	/* request the reset */
 	if (ae_dev->ops->reset_event) {
 		if (!ae_dev->override_pci_need_reset)
@@ -2705,7 +2752,7 @@ int hns3_clean_rx_ring(
 #define RCB_NOF_ALLOC_RX_BUFF_ONCE 16
 	struct net_device *netdev = ring->tqp->handle->kinfo.netdev;
 	int recv_pkts, recv_bds, clean_count, err;
-	int unused_count = hns3_desc_unused(ring) - ring->pending_buf;
+	int unused_count = hns3_desc_unused(ring);
 	struct sk_buff *skb = ring->skb;
 	int num;
 
@@ -2714,6 +2761,7 @@ int hns3_clean_rx_ring(
 
 	recv_pkts = 0, recv_bds = 0, clean_count = 0;
 	num -= unused_count;
+	unused_count -= ring->pending_buf;
 
 	while (recv_pkts < budget && recv_bds < num) {
 		/* Reuse or realloc buffers */
@@ -3197,8 +3245,6 @@ static void hns3_nic_uninit_vector_data(
 		hns3_free_vector_ring_chain(tqp_vector, &vector_ring_chain);
 
 		if (tqp_vector->irq_init_flag == HNS3_VECTOR_INITED) {
-			irq_set_affinity_notifier(tqp_vector->vector_irq,
-						  NULL);
 			irq_set_affinity_hint(tqp_vector->vector_irq, NULL);
 			free_irq(tqp_vector->vector_irq, tqp_vector);
 			tqp_vector->irq_init_flag = HNS3_VECTOR_NOT_INITED;
@@ -3711,7 +3757,7 @@ static void hns3_client_uninit(struct hn
 
 	hns3_del_all_fd_rules(netdev, true);
 
-	hns3_force_clear_all_rx_ring(handle);
+	hns3_clear_all_ring(handle, true);
 
 	hns3_uninit_phy(netdev);
 
@@ -3773,12 +3819,13 @@ static int hns3_recover_hw_addr(struct n
 	struct netdev_hw_addr *ha, *tmp;
 	int ret = 0;
 
+	netif_addr_lock_bh(ndev);
 	/* go through and sync uc_addr entries to the device */
 	list = &ndev->uc;
 	list_for_each_entry_safe(ha, tmp, &list->list, list) {
 		ret = hns3_nic_uc_sync(ndev, ha->addr);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
 	/* go through and sync mc_addr entries to the device */
@@ -3786,9 +3833,11 @@ static int hns3_recover_hw_addr(struct n
 	list_for_each_entry_safe(ha, tmp, &list->list, list) {
 		ret = hns3_nic_mc_sync(ndev, ha->addr);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
+out:
+	netif_addr_unlock_bh(ndev);
 	return ret;
 }
 
@@ -3799,6 +3848,7 @@ static void hns3_remove_hw_addr(struct n
 
 	hns3_nic_uc_unsync(netdev, netdev->dev_addr);
 
+	netif_addr_lock_bh(netdev);
 	/* go through and unsync uc_addr entries to the device */
 	list = &netdev->uc;
 	list_for_each_entry_safe(ha, tmp, &list->list, list)
@@ -3809,6 +3859,8 @@ static void hns3_remove_hw_addr(struct n
 	list_for_each_entry_safe(ha, tmp, &list->list, list)
 		if (ha->refcount > 1)
 			hns3_nic_mc_unsync(netdev, ha->addr);
+
+	netif_addr_unlock_bh(netdev);
 }
 
 static void hns3_clear_tx_ring(struct hns3_enet_ring *ring)
@@ -3850,6 +3902,13 @@ static int hns3_clear_rx_ring(struct hns
 		ring_ptr_move_fw(ring, next_to_use);
 	}
 
+	/* Free the pending skb in rx ring */
+	if (ring->skb) {
+		dev_kfree_skb_any(ring->skb);
+		ring->skb = NULL;
+		ring->pending_buf = 0;
+	}
+
 	return 0;
 }
 
@@ -3870,40 +3929,26 @@ static void hns3_force_clear_rx_ring(str
 	}
 }
 
-static void hns3_force_clear_all_rx_ring(struct hnae3_handle *h)
-{
-	struct net_device *ndev = h->kinfo.netdev;
-	struct hns3_nic_priv *priv = netdev_priv(ndev);
-	struct hns3_enet_ring *ring;
-	u32 i;
-
-	for (i = 0; i < h->kinfo.num_tqps; i++) {
-		ring = priv->ring_data[i + h->kinfo.num_tqps].ring;
-		hns3_force_clear_rx_ring(ring);
-	}
-}
-
-static void hns3_clear_all_ring(struct hnae3_handle *h)
+static void hns3_clear_all_ring(struct hnae3_handle *h, bool force)
 {
 	struct net_device *ndev = h->kinfo.netdev;
 	struct hns3_nic_priv *priv = netdev_priv(ndev);
 	u32 i;
 
 	for (i = 0; i < h->kinfo.num_tqps; i++) {
-		struct netdev_queue *dev_queue;
 		struct hns3_enet_ring *ring;
 
 		ring = priv->ring_data[i].ring;
 		hns3_clear_tx_ring(ring);
-		dev_queue = netdev_get_tx_queue(ndev,
-						priv->ring_data[i].queue_index);
-		netdev_tx_reset_queue(dev_queue);
 
 		ring = priv->ring_data[i + h->kinfo.num_tqps].ring;
 		/* Continue to clear other rings even if clearing some
 		 * rings failed.
 		 */
-		hns3_clear_rx_ring(ring);
+		if (force)
+			hns3_force_clear_rx_ring(ring);
+		else
+			hns3_clear_rx_ring(ring);
 	}
 }
 
@@ -4106,7 +4151,8 @@ static int hns3_reset_notify_uninit_enet
 		return 0;
 	}
 
-	hns3_force_clear_all_rx_ring(handle);
+	hns3_clear_all_ring(handle, true);
+	hns3_reset_tx_queue(priv->ae_handle);
 
 	hns3_nic_uninit_vector_data(priv);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -241,11 +241,13 @@ static int hns3_lp_run_test(struct net_d
 
 		skb_get(skb);
 		tx_ret = hns3_nic_net_xmit(skb, ndev);
-		if (tx_ret == NETDEV_TX_OK)
+		if (tx_ret == NETDEV_TX_OK) {
 			good_cnt++;
-		else
+		} else {
+			kfree_skb(skb);
 			netdev_err(ndev, "hns3_lb_run_test xmit failed: %d\n",
 				   tx_ret);
+		}
 	}
 	if (good_cnt != HNS3_NIC_LB_TEST_PKT_NUM) {
 		ret_val = HNS3_NIC_LB_TEST_TX_CNT_ERR;
@@ -483,6 +485,11 @@ static void hns3_get_stats(struct net_de
 	struct hnae3_handle *h = hns3_get_handle(netdev);
 	u64 *p = data;
 
+	if (hns3_nic_resetting(netdev)) {
+		netdev_err(netdev, "dev resetting, could not get stats\n");
+		return;
+	}
+
 	if (!h->ae_algo->ops->get_stats || !h->ae_algo->ops->update_stats) {
 		netdev_err(netdev, "could not get any statistics\n");
 		return;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c	2019-07-28 02:28:39.000000000 -0400
@@ -373,21 +373,26 @@ int hclge_cmd_init(struct hclge_dev *hde
 	 * reset may happen when lower level reset is being processed.
 	 */
 	if ((hclge_is_reset_pending(hdev))) {
-		set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
-		return -EBUSY;
+		ret = -EBUSY;
+		goto err_cmd_init;
 	}
 
 	ret = hclge_cmd_query_firmware_version(&hdev->hw, &version);
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
 			"firmware version query failed %d\n", ret);
-		return ret;
+		goto err_cmd_init;
 	}
 	hdev->fw_version = version;
 
 	dev_info(&hdev->pdev->dev, "The firmware version is %08x\n", version);
 
 	return 0;
+
+err_cmd_init:
+	set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+
+	return ret;
 }
 
 static void hclge_cmd_uninit_regs(struct hclge_hw *hw)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -550,8 +550,7 @@ static u8 *hclge_comm_get_strings(u32 st
 		return buff;
 
 	for (i = 0; i < size; i++) {
-		snprintf(buff, ETH_GSTRING_LEN,
-			 strs[i].desc);
+		snprintf(buff, ETH_GSTRING_LEN, "%s", strs[i].desc);
 		buff = buff + ETH_GSTRING_LEN;
 	}
 
@@ -890,6 +889,7 @@ static void hclge_parse_copper_link_mode
 	linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, supported);
 	linkmode_set_bit(ETHTOOL_LINK_MODE_TP_BIT, supported);
 	linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT, supported);
+	linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, supported);
 }
 
 static void hclge_parse_link_mode(struct hclge_dev *hdev, u8 speed_ability)
@@ -5942,8 +5942,11 @@ int hclge_add_uc_addr_common(struct hclg
 	}
 
 	/* check if we just hit the duplicate */
-	if (!ret)
-		ret = -EINVAL;
+	if (!ret) {
+		dev_warn(&hdev->pdev->dev, "VF %d mac(%pM) exists\n",
+			 vport->vport_id, addr);
+		return 0;
+	}
 
 	dev_err(&hdev->pdev->dev,
 		"PF failed to add unicast entry(%pM) in the MAC table\n",
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c	2019-07-28 02:28:39.000000000 -0400
@@ -215,6 +215,13 @@ int hclge_mac_connect_phy(struct hnae3_h
 	linkmode_and(phydev->supported, phydev->supported, mask);
 	linkmode_copy(phydev->advertising, phydev->supported);
 
+	/* supported flag is Pause and Asym Pause, but default advertising
+	 * should be rx on, tx on, so need clear Asym Pause in advertising
+	 * flag
+	 */
+	linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+			   phydev->advertising);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c	2019-07-28 02:28:39.000000000 -0400
@@ -54,7 +54,8 @@ static int hclge_shaper_para_calc(u32 ir
 	u32 tick;
 
 	/* Calc tick */
-	if (shaper_level >= HCLGE_SHAPER_LVL_CNT)
+	if (shaper_level >= HCLGE_SHAPER_LVL_CNT ||
+	    ir > HCLGE_ETHER_MAX_RATE)
 		return -EINVAL;
 
 	tick = tick_array[shaper_level];
@@ -1124,6 +1125,9 @@ static int hclge_tm_schd_mode_vnet_base_
 	int ret;
 	u8 i;
 
+	if (vport->vport_id >= HNAE3_MAX_TC)
+		return -EINVAL;
+
 	ret = hclge_tm_pri_schd_mode_cfg(hdev, vport->vport_id);
 	if (ret)
 		return ret;
@@ -1331,8 +1335,11 @@ int hclge_pause_setup_hw(struct hclge_de
 	ret = hclge_pfc_setup_hw(hdev);
 	if (init && ret == -EOPNOTSUPP)
 		dev_warn(&hdev->pdev->dev, "GE MAC does not support pfc\n");
-	else
+	else if (ret) {
+		dev_err(&hdev->pdev->dev, "config pfc failed! ret = %d\n",
+			ret);
 		return ret;
+	}
 
 	return hclge_tm_bp_setup(hdev);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c	2019-07-28 02:28:39.000000000 -0400
@@ -327,7 +327,7 @@ int hclgevf_cmd_init(struct hclgevf_dev
 	hdev->arq.hdev = hdev;
 	hdev->arq.head = 0;
 	hdev->arq.tail = 0;
-	hdev->arq.count = 0;
+	atomic_set(&hdev->arq.count, 0);
 	hdev->hw.cmq.csq.next_to_clean = 0;
 	hdev->hw.cmq.csq.next_to_use = 0;
 	hdev->hw.cmq.crq.next_to_clean = 0;
@@ -344,8 +344,8 @@ int hclgevf_cmd_init(struct hclgevf_dev
 	 * reset may happen when lower level reset is being processed.
 	 */
 	if (hclgevf_is_reset_pending(hdev)) {
-		set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);
-		return -EBUSY;
+		ret = -EBUSY;
+		goto err_cmd_init;
 	}
 
 	/* get firmware version */
@@ -353,13 +353,18 @@ int hclgevf_cmd_init(struct hclgevf_dev
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
 			"failed(%d) to query firmware version\n", ret);
-		return ret;
+		goto err_cmd_init;
 	}
 	hdev->fw_version = version;
 
 	dev_info(&hdev->pdev->dev, "The firmware version is %08x\n", version);
 
 	return 0;
+
+err_cmd_init:
+	set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);
+
+	return ret;
 }
 
 static void hclgevf_cmd_uninit_regs(struct hclgevf_hw *hw)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -2007,9 +2007,15 @@ static int hclgevf_set_alive(struct hnae
 static int hclgevf_client_start(struct hnae3_handle *handle)
 {
 	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	int ret;
+
+	ret = hclgevf_set_alive(handle, true);
+	if (ret)
+		return ret;
 
 	mod_timer(&hdev->keep_alive_timer, jiffies + 2 * HZ);
-	return hclgevf_set_alive(handle, true);
+
+	return 0;
 }
 
 static void hclgevf_client_stop(struct hnae3_handle *handle)
@@ -2051,6 +2057,10 @@ static void hclgevf_state_uninit(struct
 {
 	set_bit(HCLGEVF_STATE_DOWN, &hdev->state);
 
+	if (hdev->keep_alive_timer.function)
+		del_timer_sync(&hdev->keep_alive_timer);
+	if (hdev->keep_alive_task.func)
+		cancel_work_sync(&hdev->keep_alive_task);
 	if (hdev->service_timer.function)
 		del_timer_sync(&hdev->service_timer);
 	if (hdev->service_task.func)
@@ -2415,6 +2425,12 @@ static int hclgevf_reset_hdev(struct hcl
 		return ret;
 	}
 
+	if (pdev->revision >= 0x21) {
+		ret = hclgevf_set_promisc_mode(hdev, true);
+		if (ret)
+			return ret;
+	}
+
 	dev_info(&hdev->pdev->dev, "Reset done\n");
 
 	return 0;
@@ -2494,9 +2510,11 @@ static int hclgevf_init_hdev(struct hclg
 	 * firmware makes sure broadcast packets can be accepted.
 	 * For revision 0x21, default to enable broadcast promisc mode.
 	 */
-	ret = hclgevf_set_promisc_mode(hdev, true);
-	if (ret)
-		goto err_config;
+	if (pdev->revision >= 0x21) {
+		ret = hclgevf_set_promisc_mode(hdev, true);
+		if (ret)
+			goto err_config;
+	}
 
 	/* Initialize RSS for this VF */
 	ret = hclgevf_rss_init_hw(hdev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c	2019-07-28 02:28:39.000000000 -0400
@@ -208,7 +208,8 @@ void hclgevf_mbx_handler(struct hclgevf_
 			/* we will drop the async msg if we find ARQ as full
 			 * and continue with next message
 			 */
-			if (hdev->arq.count >= HCLGE_MBX_MAX_ARQ_MSG_NUM) {
+			if (atomic_read(&hdev->arq.count) >=
+			    HCLGE_MBX_MAX_ARQ_MSG_NUM) {
 				dev_warn(&hdev->pdev->dev,
 					 "Async Q full, dropping msg(%d)\n",
 					 req->msg[1]);
@@ -220,7 +221,7 @@ void hclgevf_mbx_handler(struct hclgevf_
 			memcpy(&msg_q[0], req->msg,
 			       HCLGE_MBX_MAX_ARQ_MSG_SIZE * sizeof(u16));
 			hclge_mbx_tail_ptr_move_arq(hdev->arq);
-			hdev->arq.count++;
+			atomic_inc(&hdev->arq.count);
 
 			hclgevf_mbx_task_schedule(hdev);
 
@@ -308,7 +309,7 @@ void hclgevf_mbx_async_handler(struct hc
 		}
 
 		hclge_mbx_head_ptr_move_arq(hdev->arq);
-		hdev->arq.count--;
+		atomic_dec(&hdev->arq.count);
 		msg_q = hdev->arq.msg_q[hdev->arq.head];
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/ibm/ibmvnic.c linux-libre-5.1.21-gnu/drivers/net/ethernet/ibm/ibmvnic.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/ibm/ibmvnic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/ibm/ibmvnic.c	2019-07-28 02:28:39.000000000 -0400
@@ -438,9 +438,10 @@ static int reset_rx_pools(struct ibmvnic
 		if (rx_pool->buff_size != be64_to_cpu(size_array[i])) {
 			free_long_term_buff(adapter, &rx_pool->long_term_buff);
 			rx_pool->buff_size = be64_to_cpu(size_array[i]);
-			alloc_long_term_buff(adapter, &rx_pool->long_term_buff,
-					     rx_pool->size *
-					     rx_pool->buff_size);
+			rc = alloc_long_term_buff(adapter,
+						  &rx_pool->long_term_buff,
+						  rx_pool->size *
+						  rx_pool->buff_size);
 		} else {
 			rc = reset_long_term_buff(adapter,
 						  &rx_pool->long_term_buff);
@@ -706,9 +707,9 @@ static int init_tx_pools(struct net_devi
 			return rc;
 		}
 
-		init_one_tx_pool(netdev, &adapter->tso_pool[i],
-				 IBMVNIC_TSO_BUFS,
-				 IBMVNIC_TSO_BUF_SZ);
+		rc = init_one_tx_pool(netdev, &adapter->tso_pool[i],
+				      IBMVNIC_TSO_BUFS,
+				      IBMVNIC_TSO_BUF_SZ);
 		if (rc) {
 			release_tx_pools(adapter);
 			return rc;
@@ -1751,7 +1752,8 @@ static int do_reset(struct ibmvnic_adapt
 
 	ibmvnic_cleanup(netdev);
 
-	if (adapter->reset_reason != VNIC_RESET_MOBILITY &&
+	if (reset_state == VNIC_OPEN &&
+	    adapter->reset_reason != VNIC_RESET_MOBILITY &&
 	    adapter->reset_reason != VNIC_RESET_FAILOVER) {
 		rc = __ibmvnic_close(netdev);
 		if (rc)
@@ -1850,6 +1852,9 @@ static int do_reset(struct ibmvnic_adapt
 		return 0;
 	}
 
+	/* refresh device's multicast list */
+	ibmvnic_set_multi(netdev);
+
 	/* kick napi */
 	for (i = 0; i < adapter->req_rx_queues; i++)
 		napi_schedule(&adapter->napi[i]);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/e1000e/netdev.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/e1000e/netdev.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/e1000e/netdev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/e1000e/netdev.c	2019-07-28 02:28:39.000000000 -0400
@@ -4209,7 +4209,7 @@ void e1000e_up(struct e1000_adapter *ada
 		e1000_configure_msix(adapter);
 	e1000_irq_enable(adapter);
 
-	netif_start_queue(adapter->netdev);
+	/* Tx queue started by watchdog timer when link is up */
 
 	e1000e_trigger_lsc(adapter);
 }
@@ -4607,6 +4607,7 @@ int e1000e_open(struct net_device *netde
 	pm_runtime_get_sync(&pdev->dev);
 
 	netif_carrier_off(netdev);
+	netif_stop_queue(netdev);
 
 	/* allocate transmit descriptors */
 	err = e1000e_setup_tx_resources(adapter->tx_ring);
@@ -4667,7 +4668,6 @@ int e1000e_open(struct net_device *netde
 	e1000_irq_enable(adapter);
 
 	adapter->tx_hang_recheck = false;
-	netif_start_queue(netdev);
 
 	hw->mac.get_link_status = true;
 	pm_runtime_put(&pdev->dev);
@@ -5289,6 +5289,7 @@ static void e1000_watchdog_task(struct w
 			if (phy->ops.cfg_on_link_up)
 				phy->ops.cfg_on_link_up(hw);
 
+			netif_wake_queue(netdev);
 			netif_carrier_on(netdev);
 
 			if (!test_bit(__E1000_DOWN, &adapter->state))
@@ -5302,6 +5303,7 @@ static void e1000_watchdog_task(struct w
 			/* Link status message must follow this format */
 			pr_info("%s NIC Link is Down\n", adapter->netdev->name);
 			netif_carrier_off(netdev);
+			netif_stop_queue(netdev);
 			if (!test_bit(__E1000_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
 					  round_jiffies(jiffies + 2 * HZ));
@@ -5309,13 +5311,8 @@ static void e1000_watchdog_task(struct w
 			/* 8000ES2LAN requires a Rx packet buffer work-around
 			 * on link down event; reset the controller to flush
 			 * the Rx packet buffer.
-			 *
-			 * If the link is lost the controller stops DMA, but
-			 * if there is queued Tx work it cannot be done.  So
-			 * reset the controller to flush the Tx packet buffers.
 			 */
-			if ((adapter->flags & FLAG_RX_NEEDS_RESTART) ||
-			    e1000_desc_unused(tx_ring) + 1 < tx_ring->count)
+			if (adapter->flags & FLAG_RX_NEEDS_RESTART)
 				adapter->flags |= FLAG_RESTART_NOW;
 			else
 				pm_schedule_suspend(netdev->dev.parent,
@@ -5338,6 +5335,14 @@ link_up:
 	adapter->gotc_old = adapter->stats.gotc;
 	spin_unlock(&adapter->stats64_lock);
 
+	/* If the link is lost the controller stops DMA, but
+	 * if there is queued Tx work it cannot be done.  So
+	 * reset the controller to flush the Tx packet buffers.
+	 */
+	if (!netif_carrier_ok(netdev) &&
+	    (e1000_desc_unused(tx_ring) + 1 < tx_ring->count))
+		adapter->flags |= FLAG_RESTART_NOW;
+
 	/* If reset is necessary, do it outside of interrupt context. */
 	if (adapter->flags & FLAG_RESTART_NOW) {
 		schedule_work(&adapter->reset_task);
@@ -7350,7 +7355,7 @@ static int e1000_probe(struct pci_dev *p
 
 	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
 
-	if (pci_dev_run_wake(pdev))
+	if (pci_dev_run_wake(pdev) && hw->mac.type < e1000_pch_cnp)
 		pm_runtime_put_noidle(&pdev->dev);
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/i40e/i40e_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/i40e/i40e_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/i40e/i40e_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/i40e/i40e_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -2654,6 +2654,10 @@ void i40e_vlan_stripping_enable(struct i
 	struct i40e_vsi_context ctxt;
 	i40e_status ret;
 
+	/* Don't modify stripping options if a port VLAN is active */
+	if (vsi->info.pvid)
+		return;
+
 	if ((vsi->info.valid_sections &
 	     cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
 	    ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_MODE_MASK) == 0))
@@ -2684,6 +2688,10 @@ void i40e_vlan_stripping_disable(struct
 	struct i40e_vsi_context ctxt;
 	i40e_status ret;
 
+	/* Don't modify stripping options if a port VLAN is active */
+	if (vsi->info.pvid)
+		return;
+
 	if ((vsi->info.valid_sections &
 	     cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
 	    ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_EMOD_MASK) ==
@@ -6846,10 +6854,12 @@ static int i40e_setup_tc(struct net_devi
 	struct i40e_pf *pf = vsi->back;
 	u8 enabled_tc = 0, num_tc, hw;
 	bool need_reset = false;
+	int old_queue_pairs;
 	int ret = -EINVAL;
 	u16 mode;
 	int i;
 
+	old_queue_pairs = vsi->num_queue_pairs;
 	num_tc = mqprio_qopt->qopt.num_tc;
 	hw = mqprio_qopt->qopt.hw;
 	mode = mqprio_qopt->mode;
@@ -6950,6 +6960,7 @@ config_tc:
 		}
 		ret = i40e_configure_queue_channels(vsi);
 		if (ret) {
+			vsi->num_queue_pairs = old_queue_pairs;
 			netdev_info(netdev,
 				    "Failed configuring queue channels\n");
 			need_reset = true;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c	2019-07-28 02:28:39.000000000 -0400
@@ -181,7 +181,7 @@ static inline bool i40e_vc_isvalid_vsi_i
  * check for the valid queue id
  **/
 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
-					    u8 qid)
+					    u16 qid)
 {
 	struct i40e_pf *pf = vf->pf;
 	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
@@ -2454,8 +2454,10 @@ error_param:
 				      (u8 *)&stats, sizeof(stats));
 }
 
-/* If the VF is not trusted restrict the number of MAC/VLAN it can program */
-#define I40E_VC_MAX_MAC_ADDR_PER_VF 12
+/* If the VF is not trusted restrict the number of MAC/VLAN it can program
+ * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
+ */
+#define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
 #define I40E_VC_MAX_VLAN_PER_VF 8
 
 /**
@@ -3374,7 +3376,7 @@ static int i40e_vc_add_cloud_filter(stru
 
 	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
 		aq_ret = I40E_ERR_PARAM;
-		goto err;
+		goto err_out;
 	}
 
 	if (!vf->adq_enabled) {
@@ -3382,7 +3384,7 @@ static int i40e_vc_add_cloud_filter(stru
 			 "VF %d: ADq is not enabled, can't apply cloud filter\n",
 			 vf->vf_id);
 		aq_ret = I40E_ERR_PARAM;
-		goto err;
+		goto err_out;
 	}
 
 	if (i40e_validate_cloud_filter(vf, vcf)) {
@@ -3390,7 +3392,7 @@ static int i40e_vc_add_cloud_filter(stru
 			 "VF %d: Invalid input/s, can't apply cloud filter\n",
 			 vf->vf_id);
 		aq_ret = I40E_ERR_PARAM;
-		goto err;
+		goto err_out;
 	}
 
 	cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
@@ -3451,13 +3453,17 @@ static int i40e_vc_add_cloud_filter(stru
 			"VF %d: Failed to add cloud filter, err %s aq_err %s\n",
 			vf->vf_id, i40e_stat_str(&pf->hw, ret),
 			i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
-		goto err;
+		goto err_free;
 	}
 
 	INIT_HLIST_NODE(&cfilter->cloud_node);
 	hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);
+	/* release the pointer passing it to the collection */
+	cfilter = NULL;
 	vf->num_cloud_filters++;
-err:
+err_free:
+	kfree(cfilter);
+err_out:
 	return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
 				       aq_ret);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/iavf/iavf_txrx.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/iavf/iavf_txrx.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/iavf/iavf_txrx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/iavf/iavf_txrx.c	2019-07-28 02:28:39.000000000 -0400
@@ -1236,6 +1236,9 @@ static void iavf_add_rx_frag(struct iavf
 	unsigned int truesize = SKB_DATA_ALIGN(size + iavf_rx_offset(rx_ring));
 #endif
 
+	if (!size)
+		return;
+
 	skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, rx_buffer->page,
 			rx_buffer->page_offset, size, truesize);
 
@@ -1260,6 +1263,9 @@ static struct iavf_rx_buffer *iavf_get_r
 {
 	struct iavf_rx_buffer *rx_buffer;
 
+	if (!size)
+		return NULL;
+
 	rx_buffer = &rx_ring->rx_bi[rx_ring->next_to_clean];
 	prefetchw(rx_buffer->page);
 
@@ -1290,7 +1296,7 @@ static struct sk_buff *iavf_construct_sk
 					  struct iavf_rx_buffer *rx_buffer,
 					  unsigned int size)
 {
-	void *va = page_address(rx_buffer->page) + rx_buffer->page_offset;
+	void *va;
 #if (PAGE_SIZE < 8192)
 	unsigned int truesize = iavf_rx_pg_size(rx_ring) / 2;
 #else
@@ -1299,7 +1305,10 @@ static struct sk_buff *iavf_construct_sk
 	unsigned int headlen;
 	struct sk_buff *skb;
 
+	if (!rx_buffer)
+		return NULL;
 	/* prefetch first cache line of first page */
+	va = page_address(rx_buffer->page) + rx_buffer->page_offset;
 	prefetch(va);
 #if L1_CACHE_BYTES < 128
 	prefetch(va + L1_CACHE_BYTES);
@@ -1354,7 +1363,7 @@ static struct sk_buff *iavf_build_skb(st
 				      struct iavf_rx_buffer *rx_buffer,
 				      unsigned int size)
 {
-	void *va = page_address(rx_buffer->page) + rx_buffer->page_offset;
+	void *va;
 #if (PAGE_SIZE < 8192)
 	unsigned int truesize = iavf_rx_pg_size(rx_ring) / 2;
 #else
@@ -1363,7 +1372,10 @@ static struct sk_buff *iavf_build_skb(st
 #endif
 	struct sk_buff *skb;
 
+	if (!rx_buffer)
+		return NULL;
 	/* prefetch first cache line of first page */
+	va = page_address(rx_buffer->page) + rx_buffer->page_offset;
 	prefetch(va);
 #if L1_CACHE_BYTES < 128
 	prefetch(va + L1_CACHE_BYTES);
@@ -1398,6 +1410,9 @@ static struct sk_buff *iavf_build_skb(st
 static void iavf_put_rx_buffer(struct iavf_ring *rx_ring,
 			       struct iavf_rx_buffer *rx_buffer)
 {
+	if (!rx_buffer)
+		return;
+
 	if (iavf_can_reuse_rx_page(rx_buffer)) {
 		/* hand second half of page back to the ring */
 		iavf_reuse_rx_page(rx_ring, rx_buffer);
@@ -1496,11 +1511,12 @@ static int iavf_clean_rx_irq(struct iavf
 		 * verified the descriptor has been written back.
 		 */
 		dma_rmb();
+#define IAVF_RXD_DD BIT(IAVF_RX_DESC_STATUS_DD_SHIFT)
+		if (!iavf_test_staterr(rx_desc, IAVF_RXD_DD))
+			break;
 
 		size = (qword & IAVF_RXD_QW1_LENGTH_PBUF_MASK) >>
 		       IAVF_RXD_QW1_LENGTH_PBUF_SHIFT;
-		if (!size)
-			break;
 
 		iavf_trace(clean_rx_irq, rx_ring, rx_desc, skb);
 		rx_buffer = iavf_get_rx_buffer(rx_ring, size);
@@ -1516,7 +1532,8 @@ static int iavf_clean_rx_irq(struct iavf
 		/* exit if we failed to retrieve a buffer */
 		if (!skb) {
 			rx_ring->rx_stats.alloc_buff_failed++;
-			rx_buffer->pagecnt_bias++;
+			if (rx_buffer)
+				rx_buffer->pagecnt_bias++;
 			break;
 		}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice.h linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice.h	2019-07-28 02:28:39.000000000 -0400
@@ -277,6 +277,7 @@ struct ice_q_vector {
 	 * value to the device
 	 */
 	u8 intrl;
+	u8 itr_countdown;	/* when 0 should adjust adaptive ITR */
 } ____cacheline_internodealigned_in_smp;
 
 enum ice_pf_flags {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_lib.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_lib.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_lib.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_lib.c	2019-07-28 02:28:39.000000000 -0400
@@ -1848,6 +1848,10 @@ int ice_vsi_manage_vlan_insertion(struct
 	 */
 	ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_MODE_ALL;
 
+	/* Preserve existing VLAN strip setting */
+	ctxt->info.vlan_flags |= (vsi->info.vlan_flags &
+				  ICE_AQ_VSI_VLAN_EMOD_M);
+
 	ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
 
 	status = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -342,6 +342,10 @@ ice_prepare_for_reset(struct ice_pf *pf)
 {
 	struct ice_hw *hw = &pf->hw;
 
+	/* already prepared for reset */
+	if (test_bit(__ICE_PREPARED_FOR_RESET, pf->state))
+		return;
+
 	/* Notify VFs of impending reset */
 	if (ice_check_sq_alive(hw, &hw->mailboxq))
 		ice_vc_notify_reset(pf);
@@ -416,10 +420,15 @@ static void ice_reset_subtask(struct ice
 	 * for the reset now), poll for reset done, rebuild and return.
 	 */
 	if (test_bit(__ICE_RESET_OICR_RECV, pf->state)) {
-		clear_bit(__ICE_GLOBR_RECV, pf->state);
-		clear_bit(__ICE_CORER_RECV, pf->state);
-		if (!test_bit(__ICE_PREPARED_FOR_RESET, pf->state))
-			ice_prepare_for_reset(pf);
+		/* Perform the largest reset requested */
+		if (test_and_clear_bit(__ICE_CORER_RECV, pf->state))
+			reset_type = ICE_RESET_CORER;
+		if (test_and_clear_bit(__ICE_GLOBR_RECV, pf->state))
+			reset_type = ICE_RESET_GLOBR;
+		/* return if no valid reset type requested */
+		if (reset_type == ICE_RESET_INVAL)
+			return;
+		ice_prepare_for_reset(pf);
 
 		/* make sure we are ready to rebuild */
 		if (ice_check_reset(&pf->hw)) {
@@ -519,6 +528,9 @@ void ice_print_link_msg(struct ice_vsi *
 	case ICE_FC_RX_PAUSE:
 		fc = "RX";
 		break;
+	case ICE_FC_NONE:
+		fc = "None";
+		break;
 	default:
 		fc = "Unknown";
 		break;
@@ -2545,6 +2557,9 @@ static int ice_set_features(struct net_d
 	struct ice_vsi *vsi = np->vsi;
 	int ret = 0;
 
+	/* Multiple features can be changed in one call so keep features in
+	 * separate if/else statements to guarantee each feature is checked
+	 */
 	if (features & NETIF_F_RXHASH && !(netdev->features & NETIF_F_RXHASH))
 		ret = ice_vsi_manage_rss_lut(vsi, true);
 	else if (!(features & NETIF_F_RXHASH) &&
@@ -2557,8 +2572,9 @@ static int ice_set_features(struct net_d
 	else if (!(features & NETIF_F_HW_VLAN_CTAG_RX) &&
 		 (netdev->features & NETIF_F_HW_VLAN_CTAG_RX))
 		ret = ice_vsi_manage_vlan_stripping(vsi, false);
-	else if ((features & NETIF_F_HW_VLAN_CTAG_TX) &&
-		 !(netdev->features & NETIF_F_HW_VLAN_CTAG_TX))
+
+	if ((features & NETIF_F_HW_VLAN_CTAG_TX) &&
+	    !(netdev->features & NETIF_F_HW_VLAN_CTAG_TX))
 		ret = ice_vsi_manage_vlan_insertion(vsi);
 	else if (!(features & NETIF_F_HW_VLAN_CTAG_TX) &&
 		 (netdev->features & NETIF_F_HW_VLAN_CTAG_TX))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_switch.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_switch.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_switch.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_switch.c	2019-07-28 02:28:39.000000000 -0400
@@ -643,21 +643,37 @@ static void ice_fill_sw_info(struct ice_
 	     fi->fltr_act == ICE_FWD_TO_VSI_LIST ||
 	     fi->fltr_act == ICE_FWD_TO_Q ||
 	     fi->fltr_act == ICE_FWD_TO_QGRP)) {
-		fi->lb_en = true;
-		/* Do not set lan_en to TRUE if
+		/* Setting LB for prune actions will result in replicated
+		 * packets to the internal switch that will be dropped.
+		 */
+		if (fi->lkup_type != ICE_SW_LKUP_VLAN)
+			fi->lb_en = true;
+
+		/* Set lan_en to TRUE if
 		 * 1. The switch is a VEB AND
 		 * 2
-		 * 2.1 The lookup is MAC with unicast addr for MAC, OR
-		 * 2.2 The lookup is MAC_VLAN with unicast addr for MAC
+		 * 2.1 The lookup is VLAN, OR
+		 * 2.2 The lookup is default port mode, OR
+		 * 2.3 The lookup is MAC with mcast or bcast addr for MAC, OR
+		 * 2.4 The lookup is MAC_VLAN with mcast or bcast addr for MAC.
 		 *
-		 * In all other cases, the LAN enable has to be set to true.
+		 * OR
+		 *
+		 * The switch is a VEPA.
+		 *
+		 * In all other cases, the LAN enable has to be set to false.
 		 */
-		if (!(hw->evb_veb &&
-		      ((fi->lkup_type == ICE_SW_LKUP_MAC &&
-			is_unicast_ether_addr(fi->l_data.mac.mac_addr)) ||
-		       (fi->lkup_type == ICE_SW_LKUP_MAC_VLAN &&
-			is_unicast_ether_addr(fi->l_data.mac_vlan.mac_addr)))))
+		if (hw->evb_veb) {
+			if (fi->lkup_type == ICE_SW_LKUP_VLAN ||
+			    fi->lkup_type == ICE_SW_LKUP_DFLT ||
+			    (fi->lkup_type == ICE_SW_LKUP_MAC &&
+			     !is_unicast_ether_addr(fi->l_data.mac.mac_addr)) ||
+			    (fi->lkup_type == ICE_SW_LKUP_MAC_VLAN &&
+			     !is_unicast_ether_addr(fi->l_data.mac.mac_addr)))
+				fi->lan_en = true;
+		} else {
 			fi->lan_en = true;
+		}
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_txrx.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_txrx.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_txrx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_txrx.c	2019-07-28 02:28:39.000000000 -0400
@@ -1048,18 +1048,257 @@ static int ice_clean_rx_irq(struct ice_r
 	return failure ? budget : (int)total_rx_pkts;
 }
 
+static unsigned int ice_itr_divisor(struct ice_port_info *pi)
+{
+	switch (pi->phy.link_info.link_speed) {
+	case ICE_AQ_LINK_SPEED_40GB:
+		return ICE_ITR_ADAPTIVE_MIN_INC * 1024;
+	case ICE_AQ_LINK_SPEED_25GB:
+	case ICE_AQ_LINK_SPEED_20GB:
+		return ICE_ITR_ADAPTIVE_MIN_INC * 512;
+	case ICE_AQ_LINK_SPEED_100MB:
+		return ICE_ITR_ADAPTIVE_MIN_INC * 32;
+	default:
+		return ICE_ITR_ADAPTIVE_MIN_INC * 256;
+	}
+}
+
+/**
+ * ice_update_itr - update the adaptive ITR value based on statistics
+ * @q_vector: structure containing interrupt and ring information
+ * @rc: structure containing ring performance data
+ *
+ * Stores a new ITR value based on packets and byte
+ * counts during the last interrupt.  The advantage of per interrupt
+ * computation is faster updates and more accurate ITR for the current
+ * traffic pattern.  Constants in this function were computed
+ * based on theoretical maximum wire speed and thresholds were set based
+ * on testing data as well as attempting to minimize response time
+ * while increasing bulk throughput.
+ */
+static void
+ice_update_itr(struct ice_q_vector *q_vector, struct ice_ring_container *rc)
+{
+	unsigned int avg_wire_size, packets, bytes, itr;
+	unsigned long next_update = jiffies;
+	bool container_is_rx;
+
+	if (!rc->ring || !ITR_IS_DYNAMIC(rc->itr_setting))
+		return;
+
+	/* If itr_countdown is set it means we programmed an ITR within
+	 * the last 4 interrupt cycles. This has a side effect of us
+	 * potentially firing an early interrupt. In order to work around
+	 * this we need to throw out any data received for a few
+	 * interrupts following the update.
+	 */
+	if (q_vector->itr_countdown) {
+		itr = rc->target_itr;
+		goto clear_counts;
+	}
+
+	container_is_rx = (&q_vector->rx == rc);
+	/* For Rx we want to push the delay up and default to low latency.
+	 * for Tx we want to pull the delay down and default to high latency.
+	 */
+	itr = container_is_rx ?
+		ICE_ITR_ADAPTIVE_MIN_USECS | ICE_ITR_ADAPTIVE_LATENCY :
+		ICE_ITR_ADAPTIVE_MAX_USECS | ICE_ITR_ADAPTIVE_LATENCY;
+
+	/* If we didn't update within up to 1 - 2 jiffies we can assume
+	 * that either packets are coming in so slow there hasn't been
+	 * any work, or that there is so much work that NAPI is dealing
+	 * with interrupt moderation and we don't need to do anything.
+	 */
+	if (time_after(next_update, rc->next_update))
+		goto clear_counts;
+
+	packets = rc->total_pkts;
+	bytes = rc->total_bytes;
+
+	if (container_is_rx) {
+		/* If Rx there are 1 to 4 packets and bytes are less than
+		 * 9000 assume insufficient data to use bulk rate limiting
+		 * approach unless Tx is already in bulk rate limiting. We
+		 * are likely latency driven.
+		 */
+		if (packets && packets < 4 && bytes < 9000 &&
+		    (q_vector->tx.target_itr & ICE_ITR_ADAPTIVE_LATENCY)) {
+			itr = ICE_ITR_ADAPTIVE_LATENCY;
+			goto adjust_by_size;
+		}
+	} else if (packets < 4) {
+		/* If we have Tx and Rx ITR maxed and Tx ITR is running in
+		 * bulk mode and we are receiving 4 or fewer packets just
+		 * reset the ITR_ADAPTIVE_LATENCY bit for latency mode so
+		 * that the Rx can relax.
+		 */
+		if (rc->target_itr == ICE_ITR_ADAPTIVE_MAX_USECS &&
+		    (q_vector->rx.target_itr & ICE_ITR_MASK) ==
+		    ICE_ITR_ADAPTIVE_MAX_USECS)
+			goto clear_counts;
+	} else if (packets > 32) {
+		/* If we have processed over 32 packets in a single interrupt
+		 * for Tx assume we need to switch over to "bulk" mode.
+		 */
+		rc->target_itr &= ~ICE_ITR_ADAPTIVE_LATENCY;
+	}
+
+	/* We have no packets to actually measure against. This means
+	 * either one of the other queues on this vector is active or
+	 * we are a Tx queue doing TSO with too high of an interrupt rate.
+	 *
+	 * Between 4 and 56 we can assume that our current interrupt delay
+	 * is only slightly too low. As such we should increase it by a small
+	 * fixed amount.
+	 */
+	if (packets < 56) {
+		itr = rc->target_itr + ICE_ITR_ADAPTIVE_MIN_INC;
+		if ((itr & ICE_ITR_MASK) > ICE_ITR_ADAPTIVE_MAX_USECS) {
+			itr &= ICE_ITR_ADAPTIVE_LATENCY;
+			itr += ICE_ITR_ADAPTIVE_MAX_USECS;
+		}
+		goto clear_counts;
+	}
+
+	if (packets <= 256) {
+		itr = min(q_vector->tx.current_itr, q_vector->rx.current_itr);
+		itr &= ICE_ITR_MASK;
+
+		/* Between 56 and 112 is our "goldilocks" zone where we are
+		 * working out "just right". Just report that our current
+		 * ITR is good for us.
+		 */
+		if (packets <= 112)
+			goto clear_counts;
+
+		/* If packet count is 128 or greater we are likely looking
+		 * at a slight overrun of the delay we want. Try halving
+		 * our delay to see if that will cut the number of packets
+		 * in half per interrupt.
+		 */
+		itr >>= 1;
+		itr &= ICE_ITR_MASK;
+		if (itr < ICE_ITR_ADAPTIVE_MIN_USECS)
+			itr = ICE_ITR_ADAPTIVE_MIN_USECS;
+
+		goto clear_counts;
+	}
+
+	/* The paths below assume we are dealing with a bulk ITR since
+	 * number of packets is greater than 256. We are just going to have
+	 * to compute a value and try to bring the count under control,
+	 * though for smaller packet sizes there isn't much we can do as
+	 * NAPI polling will likely be kicking in sooner rather than later.
+	 */
+	itr = ICE_ITR_ADAPTIVE_BULK;
+
+adjust_by_size:
+	/* If packet counts are 256 or greater we can assume we have a gross
+	 * overestimation of what the rate should be. Instead of trying to fine
+	 * tune it just use the formula below to try and dial in an exact value
+	 * gives the current packet size of the frame.
+	 */
+	avg_wire_size = bytes / packets;
+
+	/* The following is a crude approximation of:
+	 *  wmem_default / (size + overhead) = desired_pkts_per_int
+	 *  rate / bits_per_byte / (size + ethernet overhead) = pkt_rate
+	 *  (desired_pkt_rate / pkt_rate) * usecs_per_sec = ITR value
+	 *
+	 * Assuming wmem_default is 212992 and overhead is 640 bytes per
+	 * packet, (256 skb, 64 headroom, 320 shared info), we can reduce the
+	 * formula down to
+	 *
+	 *  (170 * (size + 24)) / (size + 640) = ITR
+	 *
+	 * We first do some math on the packet size and then finally bitshift
+	 * by 8 after rounding up. We also have to account for PCIe link speed
+	 * difference as ITR scales based on this.
+	 */
+	if (avg_wire_size <= 60) {
+		/* Start at 250k ints/sec */
+		avg_wire_size = 4096;
+	} else if (avg_wire_size <= 380) {
+		/* 250K ints/sec to 60K ints/sec */
+		avg_wire_size *= 40;
+		avg_wire_size += 1696;
+	} else if (avg_wire_size <= 1084) {
+		/* 60K ints/sec to 36K ints/sec */
+		avg_wire_size *= 15;
+		avg_wire_size += 11452;
+	} else if (avg_wire_size <= 1980) {
+		/* 36K ints/sec to 30K ints/sec */
+		avg_wire_size *= 5;
+		avg_wire_size += 22420;
+	} else {
+		/* plateau at a limit of 30K ints/sec */
+		avg_wire_size = 32256;
+	}
+
+	/* If we are in low latency mode halve our delay which doubles the
+	 * rate to somewhere between 100K to 16K ints/sec
+	 */
+	if (itr & ICE_ITR_ADAPTIVE_LATENCY)
+		avg_wire_size >>= 1;
+
+	/* Resultant value is 256 times larger than it needs to be. This
+	 * gives us room to adjust the value as needed to either increase
+	 * or decrease the value based on link speeds of 10G, 2.5G, 1G, etc.
+	 *
+	 * Use addition as we have already recorded the new latency flag
+	 * for the ITR value.
+	 */
+	itr += DIV_ROUND_UP(avg_wire_size,
+			    ice_itr_divisor(q_vector->vsi->port_info)) *
+	       ICE_ITR_ADAPTIVE_MIN_INC;
+
+	if ((itr & ICE_ITR_MASK) > ICE_ITR_ADAPTIVE_MAX_USECS) {
+		itr &= ICE_ITR_ADAPTIVE_LATENCY;
+		itr += ICE_ITR_ADAPTIVE_MAX_USECS;
+	}
+
+clear_counts:
+	/* write back value */
+	rc->target_itr = itr;
+
+	/* next update should occur within next jiffy */
+	rc->next_update = next_update + 1;
+
+	rc->total_bytes = 0;
+	rc->total_pkts = 0;
+}
+
 /**
  * ice_buildreg_itr - build value for writing to the GLINT_DYN_CTL register
  * @itr_idx: interrupt throttling index
- * @reg_itr: interrupt throttling value adjusted based on ITR granularity
+ * @itr: interrupt throttling value in usecs
  */
-static u32 ice_buildreg_itr(int itr_idx, u16 reg_itr)
+static u32 ice_buildreg_itr(int itr_idx, u16 itr)
 {
+	/* The itr value is reported in microseconds, and the register value is
+	 * recorded in 2 microsecond units. For this reason we only need to
+	 * shift by the GLINT_DYN_CTL_INTERVAL_S - ICE_ITR_GRAN_S to apply this
+	 * granularity as a shift instead of division. The mask makes sure the
+	 * ITR value is never odd so we don't accidentally write into the field
+	 * prior to the ITR field.
+	 */
+	itr &= ICE_ITR_MASK;
+
 	return GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M |
 		(itr_idx << GLINT_DYN_CTL_ITR_INDX_S) |
-		(reg_itr << GLINT_DYN_CTL_INTERVAL_S);
+		(itr << (GLINT_DYN_CTL_INTERVAL_S - ICE_ITR_GRAN_S));
 }
 
+/* The act of updating the ITR will cause it to immediately trigger. In order
+ * to prevent this from throwing off adaptive update statistics we defer the
+ * update so that it can only happen so often. So after either Tx or Rx are
+ * updated we make the adaptive scheme wait until either the ITR completely
+ * expires via the next_update expiration or we have been through at least
+ * 3 interrupts.
+ */
+#define ITR_COUNTDOWN_START 3
+
 /**
  * ice_update_ena_itr - Update ITR and re-enable MSIX interrupt
  * @vsi: the VSI associated with the q_vector
@@ -1068,10 +1307,14 @@ static u32 ice_buildreg_itr(int itr_idx,
 static void
 ice_update_ena_itr(struct ice_vsi *vsi, struct ice_q_vector *q_vector)
 {
-	struct ice_hw *hw = &vsi->back->hw;
-	struct ice_ring_container *rc;
+	struct ice_ring_container *tx = &q_vector->tx;
+	struct ice_ring_container *rx = &q_vector->rx;
 	u32 itr_val;
 
+	/* This will do nothing if dynamic updates are not enabled */
+	ice_update_itr(q_vector, tx);
+	ice_update_itr(q_vector, rx);
+
 	/* This block of logic allows us to get away with only updating
 	 * one ITR value with each interrupt. The idea is to perform a
 	 * pseudo-lazy update with the following criteria.
@@ -1080,35 +1323,36 @@ ice_update_ena_itr(struct ice_vsi *vsi,
 	 * 2. If we must reduce an ITR that is given highest priority.
 	 * 3. We then give priority to increasing ITR based on amount.
 	 */
-	if (q_vector->rx.target_itr < q_vector->rx.current_itr) {
-		rc = &q_vector->rx;
+	if (rx->target_itr < rx->current_itr) {
 		/* Rx ITR needs to be reduced, this is highest priority */
-		itr_val = ice_buildreg_itr(rc->itr_idx, rc->target_itr);
-		rc->current_itr = rc->target_itr;
-	} else if ((q_vector->tx.target_itr < q_vector->tx.current_itr) ||
-		   ((q_vector->rx.target_itr - q_vector->rx.current_itr) <
-		    (q_vector->tx.target_itr - q_vector->tx.current_itr))) {
-		rc = &q_vector->tx;
+		itr_val = ice_buildreg_itr(rx->itr_idx, rx->target_itr);
+		rx->current_itr = rx->target_itr;
+		q_vector->itr_countdown = ITR_COUNTDOWN_START;
+	} else if ((tx->target_itr < tx->current_itr) ||
+		   ((rx->target_itr - rx->current_itr) <
+		    (tx->target_itr - tx->current_itr))) {
 		/* Tx ITR needs to be reduced, this is second priority
 		 * Tx ITR needs to be increased more than Rx, fourth priority
 		 */
-		itr_val = ice_buildreg_itr(rc->itr_idx, rc->target_itr);
-		rc->current_itr = rc->target_itr;
-	} else if (q_vector->rx.current_itr != q_vector->rx.target_itr) {
-		rc = &q_vector->rx;
+		itr_val = ice_buildreg_itr(tx->itr_idx, tx->target_itr);
+		tx->current_itr = tx->target_itr;
+		q_vector->itr_countdown = ITR_COUNTDOWN_START;
+	} else if (rx->current_itr != rx->target_itr) {
 		/* Rx ITR needs to be increased, third priority */
-		itr_val = ice_buildreg_itr(rc->itr_idx, rc->target_itr);
-		rc->current_itr = rc->target_itr;
+		itr_val = ice_buildreg_itr(rx->itr_idx, rx->target_itr);
+		rx->current_itr = rx->target_itr;
+		q_vector->itr_countdown = ITR_COUNTDOWN_START;
 	} else {
 		/* Still have to re-enable the interrupts */
 		itr_val = ice_buildreg_itr(ICE_ITR_NONE, 0);
+		if (q_vector->itr_countdown)
+			q_vector->itr_countdown--;
 	}
 
-	if (!test_bit(__ICE_DOWN, vsi->state)) {
-		int vector = vsi->hw_base_vector + q_vector->v_idx;
-
-		wr32(hw, GLINT_DYN_CTL(vector), itr_val);
-	}
+	if (!test_bit(__ICE_DOWN, vsi->state))
+		wr32(&vsi->back->hw,
+		     GLINT_DYN_CTL(vsi->hw_base_vector + q_vector->v_idx),
+		     itr_val);
 }
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_txrx.h linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_txrx.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_txrx.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_txrx.h	2019-07-28 02:28:39.000000000 -0400
@@ -128,6 +128,12 @@ enum ice_rx_dtype {
 #define ICE_ITR_MASK		0x1FFE	/* ITR register value alignment mask */
 #define ITR_REG_ALIGN(setting)	__ALIGN_MASK(setting, ~ICE_ITR_MASK)
 
+#define ICE_ITR_ADAPTIVE_MIN_INC	0x0002
+#define ICE_ITR_ADAPTIVE_MIN_USECS	0x0002
+#define ICE_ITR_ADAPTIVE_MAX_USECS	0x00FA
+#define ICE_ITR_ADAPTIVE_LATENCY	0x8000
+#define ICE_ITR_ADAPTIVE_BULK		0x0000
+
 #define ICE_DFLT_INTRL	0
 
 /* Legacy or Advanced Mode Queue */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c	2019-07-28 02:28:39.000000000 -0400
@@ -764,6 +764,7 @@ static void ice_cleanup_and_realloc_vf(s
 bool ice_reset_all_vfs(struct ice_pf *pf, bool is_vflr)
 {
 	struct ice_hw *hw = &pf->hw;
+	struct ice_vf *vf;
 	int v, i;
 
 	/* If we don't have any VFs, then there is nothing to reset */
@@ -778,12 +779,17 @@ bool ice_reset_all_vfs(struct ice_pf *pf
 	for (v = 0; v < pf->num_alloc_vfs; v++)
 		ice_trigger_vf_reset(&pf->vf[v], is_vflr);
 
-	/* Call Disable LAN Tx queue AQ call with VFR bit set and 0
-	 * queues to inform Firmware about VF reset.
-	 */
-	for (v = 0; v < pf->num_alloc_vfs; v++)
-		ice_dis_vsi_txq(pf->vsi[0]->port_info, 0, NULL, NULL,
-				ICE_VF_RESET, v, NULL);
+	for (v = 0; v < pf->num_alloc_vfs; v++) {
+		struct ice_vsi *vsi;
+
+		vf = &pf->vf[v];
+		vsi = pf->vsi[vf->lan_vsi_idx];
+		if (test_bit(ICE_VF_STATE_ENA, vf->vf_states)) {
+			ice_vsi_stop_lan_tx_rings(vsi, ICE_VF_RESET, vf->vf_id);
+			ice_vsi_stop_rx_rings(vsi);
+			clear_bit(ICE_VF_STATE_ENA, vf->vf_states);
+		}
+	}
 
 	/* HW requires some time to make sure it can flush the FIFO for a VF
 	 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
@@ -796,9 +802,9 @@ bool ice_reset_all_vfs(struct ice_pf *pf
 
 		/* Check each VF in sequence */
 		while (v < pf->num_alloc_vfs) {
-			struct ice_vf *vf = &pf->vf[v];
 			u32 reg;
 
+			vf = &pf->vf[v];
 			reg = rd32(hw, VPGEN_VFRSTAT(vf->vf_id));
 			if (!(reg & VPGEN_VFRSTAT_VFRD_M))
 				break;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/igb/igb_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/igb/igb_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/igb/igb_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/igb/igb_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -3452,6 +3452,9 @@ static int igb_probe(struct pci_dev *pde
 			break;
 		}
 	}
+
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
+
 	pm_runtime_put_noidle(&pdev->dev);
 	return 0;
 
@@ -5684,6 +5687,7 @@ static void igb_tx_ctxtdesc(struct igb_r
 	 */
 	if (tx_ring->launchtime_enable) {
 		ts = ns_to_timespec64(first->skb->tstamp);
+		first->skb->tstamp = 0;
 		context_desc->seqnum_seed = cpu_to_le32(ts.tv_nsec / 32);
 	} else {
 		context_desc->seqnum_seed = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -3226,7 +3226,8 @@ static int ixgbe_get_module_info(struct
 		page_swap = true;
 	}
 
-	if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap) {
+	if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap ||
+	    !(addr_mode & IXGBE_SFF_DDM_IMPLEMENTED)) {
 		/* We have a SFP, but it does not support SFF-8472 */
 		modinfo->type = ETH_MODULE_SFF_8079;
 		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c	2019-07-28 02:28:39.000000000 -0400
@@ -842,6 +842,9 @@ void ixgbe_ipsec_vf_clear(struct ixgbe_a
 	struct ixgbe_ipsec *ipsec = adapter->ipsec;
 	int i;
 
+	if (!ipsec)
+		return;
+
 	/* search rx sa table */
 	for (i = 0; i < IXGBE_IPSEC_MAX_SA_COUNT && ipsec->num_rx_sa; i++) {
 		if (!ipsec->rx_tbl[i].used)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h	2019-07-28 02:28:39.000000000 -0400
@@ -45,6 +45,7 @@
 #define IXGBE_SFF_SOFT_RS_SELECT_10G		0x8
 #define IXGBE_SFF_SOFT_RS_SELECT_1G		0x0
 #define IXGBE_SFF_ADDRESSING_MODE		0x4
+#define IXGBE_SFF_DDM_IMPLEMENTED		0x40
 #define IXGBE_SFF_QSFP_DA_ACTIVE_CABLE		0x1
 #define IXGBE_SFF_QSFP_DA_PASSIVE_CABLE		0x8
 #define IXGBE_SFF_QSFP_CONNECTOR_NOT_SEPARABLE	0x23
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/marvell/mvmdio.c linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/mvmdio.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/marvell/mvmdio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/mvmdio.c	2019-07-28 02:28:39.000000000 -0400
@@ -64,7 +64,7 @@
 
 struct orion_mdio_dev {
 	void __iomem *regs;
-	struct clk *clk[3];
+	struct clk *clk[4];
 	/*
 	 * If we have access to the error interrupt pin (which is
 	 * somewhat misnamed as it not only reflects internal errors
@@ -321,6 +321,10 @@ static int orion_mdio_probe(struct platf
 
 	for (i = 0; i < ARRAY_SIZE(dev->clk); i++) {
 		dev->clk[i] = of_clk_get(pdev->dev.of_node, i);
+		if (PTR_ERR(dev->clk[i]) == -EPROBE_DEFER) {
+			ret = -EPROBE_DEFER;
+			goto out_clk;
+		}
 		if (IS_ERR(dev->clk[i]))
 			break;
 		clk_prepare_enable(dev->clk[i]);
@@ -362,6 +366,7 @@ out_mdio:
 	if (dev->err_interrupt > 0)
 		writel(0, dev->regs + MVMDIO_ERR_INT_MASK);
 
+out_clk:
 	for (i = 0; i < ARRAY_SIZE(dev->clk); i++) {
 		if (IS_ERR(dev->clk[i]))
 			break;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/marvell/mvneta.c linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/mvneta.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/marvell/mvneta.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/mvneta.c	2019-07-28 02:28:39.000000000 -0400
@@ -4674,7 +4674,7 @@ static int mvneta_probe(struct platform_
 	err = register_netdev(dev);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to register\n");
-		goto err_free_stats;
+		goto err_netdev;
 	}
 
 	netdev_info(dev, "Using %s mac address %pM\n", mac_from,
@@ -4685,14 +4685,12 @@ static int mvneta_probe(struct platform_
 	return 0;
 
 err_netdev:
-	unregister_netdev(dev);
 	if (pp->bm_priv) {
 		mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_long, 1 << pp->id);
 		mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_short,
 				       1 << pp->id);
 		mvneta_bm_put(pp->bm_priv);
 	}
-err_free_stats:
 	free_percpu(pp->stats);
 err_free_ports:
 	free_percpu(pp->ports);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1304,8 +1304,8 @@ static void mvpp2_ethtool_get_strings(st
 		int i;
 
 		for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_regs); i++)
-			memcpy(data + i * ETH_GSTRING_LEN,
-			       &mvpp2_ethtool_regs[i].string, ETH_GSTRING_LEN);
+			strscpy(data + i * ETH_GSTRING_LEN,
+			        mvpp2_ethtool_regs[i].string, ETH_GSTRING_LEN);
 	}
 }
 
@@ -1455,7 +1455,7 @@ static inline void mvpp2_xlg_max_rx_size
 /* Set defaults to the MVPP2 port */
 static void mvpp2_defaults_set(struct mvpp2_port *port)
 {
-	int tx_port_num, val, queue, ptxq, lrxq;
+	int tx_port_num, val, queue, lrxq;
 
 	if (port->priv->hw_version == MVPP21) {
 		/* Update TX FIFO MIN Threshold */
@@ -1476,11 +1476,9 @@ static void mvpp2_defaults_set(struct mv
 	mvpp2_write(port->priv, MVPP2_TXP_SCHED_FIXED_PRIO_REG, 0);
 
 	/* Close bandwidth for all queues */
-	for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) {
-		ptxq = mvpp2_txq_phys(port->id, queue);
+	for (queue = 0; queue < MVPP2_MAX_TXQ; queue++)
 		mvpp2_write(port->priv,
-			    MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(ptxq), 0);
-	}
+			    MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(queue), 0);
 
 	/* Set refill period to 1 usec, refill tokens
 	 * and bucket size to maximum
@@ -2336,7 +2334,7 @@ static void mvpp2_txq_deinit(struct mvpp
 	txq->descs_dma         = 0;
 
 	/* Set minimum bandwidth for disabled TXQs */
-	mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->id), 0);
+	mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->log_id), 0);
 
 	/* Set Tx descriptors queue starting address and size */
 	thread = mvpp2_cpu_to_thread(port->priv, get_cpu());
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c	2019-07-28 02:28:39.000000000 -0400
@@ -312,7 +312,8 @@ static void mvpp2_prs_sram_shift_set(str
 	}
 
 	/* Set value */
-	pe->sram[MVPP2_BIT_TO_WORD(MVPP2_PRS_SRAM_SHIFT_OFFS)] = shift & MVPP2_PRS_SRAM_SHIFT_MASK;
+	pe->sram[MVPP2_BIT_TO_WORD(MVPP2_PRS_SRAM_SHIFT_OFFS)] |=
+		shift & MVPP2_PRS_SRAM_SHIFT_MASK;
 
 	/* Reset and set operation */
 	mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS,
@@ -1905,8 +1906,7 @@ static int mvpp2_prs_ip6_init(struct mvp
 }
 
 /* Find tcam entry with matched pair <vid,port> */
-static int mvpp2_prs_vid_range_find(struct mvpp2 *priv, int pmap, u16 vid,
-				    u16 mask)
+static int mvpp2_prs_vid_range_find(struct mvpp2_port *port, u16 vid, u16 mask)
 {
 	unsigned char byte[2], enable[2];
 	struct mvpp2_prs_entry pe;
@@ -1914,13 +1914,13 @@ static int mvpp2_prs_vid_range_find(stru
 	int tid;
 
 	/* Go through the all entries with MVPP2_PRS_LU_VID */
-	for (tid = MVPP2_PE_VID_FILT_RANGE_START;
-	     tid <= MVPP2_PE_VID_FILT_RANGE_END; tid++) {
-		if (!priv->prs_shadow[tid].valid ||
-		    priv->prs_shadow[tid].lu != MVPP2_PRS_LU_VID)
+	for (tid = MVPP2_PRS_VID_PORT_FIRST(port->id);
+	     tid <= MVPP2_PRS_VID_PORT_LAST(port->id); tid++) {
+		if (!port->priv->prs_shadow[tid].valid ||
+		    port->priv->prs_shadow[tid].lu != MVPP2_PRS_LU_VID)
 			continue;
 
-		mvpp2_prs_init_from_hw(priv, &pe, tid);
+		mvpp2_prs_init_from_hw(port->priv, &pe, tid);
 
 		mvpp2_prs_tcam_data_byte_get(&pe, 2, &byte[0], &enable[0]);
 		mvpp2_prs_tcam_data_byte_get(&pe, 3, &byte[1], &enable[1]);
@@ -1950,7 +1950,7 @@ int mvpp2_prs_vid_entry_add(struct mvpp2
 	memset(&pe, 0, sizeof(pe));
 
 	/* Scan TCAM and see if entry with this <vid,port> already exist */
-	tid = mvpp2_prs_vid_range_find(priv, (1 << port->id), vid, mask);
+	tid = mvpp2_prs_vid_range_find(port, vid, mask);
 
 	reg_val = mvpp2_read(priv, MVPP2_MH_REG(port->id));
 	if (reg_val & MVPP2_DSA_EXTENDED)
@@ -2008,7 +2008,7 @@ void mvpp2_prs_vid_entry_remove(struct m
 	int tid;
 
 	/* Scan TCAM and see if entry with this <vid,port> already exist */
-	tid = mvpp2_prs_vid_range_find(priv, (1 << port->id), vid, 0xfff);
+	tid = mvpp2_prs_vid_range_find(port, vid, 0xfff);
 
 	/* No such entry */
 	if (tid < 0)
@@ -2026,8 +2026,10 @@ void mvpp2_prs_vid_remove_all(struct mvp
 
 	for (tid = MVPP2_PRS_VID_PORT_FIRST(port->id);
 	     tid <= MVPP2_PRS_VID_PORT_LAST(port->id); tid++) {
-		if (priv->prs_shadow[tid].valid)
-			mvpp2_prs_vid_entry_remove(port, tid);
+		if (priv->prs_shadow[tid].valid) {
+			mvpp2_prs_hw_inv(priv, tid);
+			priv->prs_shadow[tid].valid = false;
+		}
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/marvell/sky2.c linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/sky2.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/marvell/sky2.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/marvell/sky2.c	2019-07-28 02:28:39.000000000 -0400
@@ -4933,6 +4933,13 @@ static const struct dmi_system_id msi_bl
 			DMI_MATCH(DMI_PRODUCT_NAME, "P-79"),
 		},
 	},
+	{
+		.ident = "ASUS P6T",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "P6T"),
+		},
+	},
 	{}
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mediatek/mtk_eth_soc.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mediatek/mtk_eth_soc.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mediatek/mtk_eth_soc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mediatek/mtk_eth_soc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1777,6 +1777,7 @@ static void mtk_poll_controller(struct n
 
 static int mtk_start_dma(struct mtk_eth *eth)
 {
+	u32 rx_2b_offset = (NET_IP_ALIGN == 2) ? MTK_RX_2B_OFFSET : 0;
 	int err;
 
 	err = mtk_dma_init(eth);
@@ -1793,7 +1794,7 @@ static int mtk_start_dma(struct mtk_eth
 		MTK_QDMA_GLO_CFG);
 
 	mtk_w32(eth,
-		MTK_RX_DMA_EN | MTK_RX_2B_OFFSET |
+		MTK_RX_DMA_EN | rx_2b_offset |
 		MTK_RX_BT_32DWORDS | MTK_MULTI_EN,
 		MTK_PDMA_GLO_CFG);
 
@@ -2297,13 +2298,13 @@ static int mtk_get_rxnfc(struct net_devi
 
 	switch (cmd->cmd) {
 	case ETHTOOL_GRXRINGS:
-		if (dev->features & NETIF_F_LRO) {
+		if (dev->hw_features & NETIF_F_LRO) {
 			cmd->data = MTK_MAX_RX_RING_NUM;
 			ret = 0;
 		}
 		break;
 	case ETHTOOL_GRXCLSRLCNT:
-		if (dev->features & NETIF_F_LRO) {
+		if (dev->hw_features & NETIF_F_LRO) {
 			struct mtk_mac *mac = netdev_priv(dev);
 
 			cmd->rule_cnt = mac->hwlro_ip_cnt;
@@ -2311,11 +2312,11 @@ static int mtk_get_rxnfc(struct net_devi
 		}
 		break;
 	case ETHTOOL_GRXCLSRULE:
-		if (dev->features & NETIF_F_LRO)
+		if (dev->hw_features & NETIF_F_LRO)
 			ret = mtk_hwlro_get_fdir_entry(dev, cmd);
 		break;
 	case ETHTOOL_GRXCLSRLALL:
-		if (dev->features & NETIF_F_LRO)
+		if (dev->hw_features & NETIF_F_LRO)
 			ret = mtk_hwlro_get_fdir_all(dev, cmd,
 						     rule_locs);
 		break;
@@ -2332,11 +2333,11 @@ static int mtk_set_rxnfc(struct net_devi
 
 	switch (cmd->cmd) {
 	case ETHTOOL_SRXCLSRLINS:
-		if (dev->features & NETIF_F_LRO)
+		if (dev->hw_features & NETIF_F_LRO)
 			ret = mtk_hwlro_add_ipaddr(dev, cmd);
 		break;
 	case ETHTOOL_SRXCLSRLDEL:
-		if (dev->features & NETIF_F_LRO)
+		if (dev->hw_features & NETIF_F_LRO)
 			ret = mtk_hwlro_del_ipaddr(dev, cmd);
 		break;
 	default:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -2010,6 +2010,8 @@ static int mlx4_en_set_tunable(struct ne
 	return ret;
 }
 
+#define MLX4_EEPROM_PAGE_LEN 256
+
 static int mlx4_en_get_module_info(struct net_device *dev,
 				   struct ethtool_modinfo *modinfo)
 {
@@ -2044,7 +2046,7 @@ static int mlx4_en_get_module_info(struc
 		break;
 	case MLX4_MODULE_ID_SFP:
 		modinfo->type = ETH_MODULE_SFF_8472;
-		modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
+		modinfo->eeprom_len = MLX4_EEPROM_PAGE_LEN;
 		break;
 	default:
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx4/mcg.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx4/mcg.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx4/mcg.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx4/mcg.c	2019-07-28 02:28:39.000000000 -0400
@@ -1492,7 +1492,7 @@ int mlx4_flow_steer_promisc_add(struct m
 	rule.port = port;
 	rule.qpn = qpn;
 	INIT_LIST_HEAD(&rule.list);
-	mlx4_err(dev, "going promisc on %x\n", port);
+	mlx4_info(dev, "going promisc on %x\n", port);
 
 	return  mlx4_flow_attach(dev, &rule, regid_p);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx4/port.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx4/port.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx4/port.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx4/port.c	2019-07-28 02:28:39.000000000 -0400
@@ -2077,11 +2077,6 @@ int mlx4_get_module_info(struct mlx4_dev
 		size -= offset + size - I2C_PAGE_SIZE;
 
 	i2c_addr = I2C_ADDR_LOW;
-	if (offset >= I2C_PAGE_SIZE) {
-		/* Reset offset to high page */
-		i2c_addr = I2C_ADDR_HIGH;
-		offset -= I2C_PAGE_SIZE;
-	}
 
 	cable_info = (struct mlx4_cable_info *)inmad->data;
 	cable_info->dev_mem_address = cpu_to_be16(offset);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c	2019-07-28 02:28:39.000000000 -0400
@@ -441,6 +441,10 @@ static int mlx5_internal_err_ret_value(s
 	case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
 	case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT:
 	case MLX5_CMD_OP_QUERY_GENERAL_OBJECT:
+	case MLX5_CMD_OP_CREATE_UCTX:
+	case MLX5_CMD_OP_DESTROY_UCTX:
+	case MLX5_CMD_OP_CREATE_UMEM:
+	case MLX5_CMD_OP_DESTROY_UMEM:
 	case MLX5_CMD_OP_ALLOC_MEMIC:
 		*status = MLX5_DRIVER_STATUS_ABORTED;
 		*synd = MLX5_DRIVER_SYND;
@@ -629,6 +633,10 @@ const char *mlx5_command_str(int command
 	MLX5_COMMAND_STR_CASE(ALLOC_MEMIC);
 	MLX5_COMMAND_STR_CASE(DEALLOC_MEMIC);
 	MLX5_COMMAND_STR_CASE(QUERY_HOST_PARAMS);
+	MLX5_COMMAND_STR_CASE(CREATE_UCTX);
+	MLX5_COMMAND_STR_CASE(DESTROY_UCTX);
+	MLX5_COMMAND_STR_CASE(CREATE_UMEM);
+	MLX5_COMMAND_STR_CASE(DESTROY_UMEM);
 	default: return "unknown command opcode";
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/dev.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/dev.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -248,11 +248,32 @@ void mlx5_unregister_interface(struct ml
 }
 EXPORT_SYMBOL(mlx5_unregister_interface);
 
+/* Must be called with intf_mutex held */
+static bool mlx5_has_added_dev_by_protocol(struct mlx5_core_dev *mdev, int protocol)
+{
+	struct mlx5_device_context *dev_ctx;
+	struct mlx5_interface *intf;
+	bool found = false;
+
+	list_for_each_entry(intf, &intf_list, list) {
+		if (intf->protocol == protocol) {
+			dev_ctx = mlx5_get_device(intf, &mdev->priv);
+			if (dev_ctx && test_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state))
+				found = true;
+			break;
+		}
+	}
+
+	return found;
+}
+
 void mlx5_reload_interface(struct mlx5_core_dev *mdev, int protocol)
 {
 	mutex_lock(&mlx5_intf_mutex);
-	mlx5_remove_dev_by_protocol(mdev, protocol);
-	mlx5_add_dev_by_protocol(mdev, protocol);
+	if (mlx5_has_added_dev_by_protocol(mdev, protocol)) {
+		mlx5_remove_dev_by_protocol(mdev, protocol);
+		mlx5_add_dev_by_protocol(mdev, protocol);
+	}
 	mutex_unlock(&mlx5_intf_mutex);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c	2019-07-28 02:28:39.000000000 -0400
@@ -26,7 +26,7 @@ static int mlx5_peer_pf_disable_hca(stru
 
 	MLX5_SET(disable_hca_in, in, opcode, MLX5_CMD_OP_DISABLE_HCA);
 	MLX5_SET(disable_hca_in, in, function_id, 0);
-	MLX5_SET(enable_hca_in, in, embedded_cpu_function, 0);
+	MLX5_SET(disable_hca_in, in, embedded_cpu_function, 0);
 	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c	2019-07-28 02:28:39.000000000 -0400
@@ -142,22 +142,20 @@ static int mlx5e_tx_reporter_timeout_rec
 {
 	struct mlx5_eq_comp *eq = sq->cq.mcq.eq;
 	u32 eqe_count;
-	int ret;
 
 	netdev_err(sq->channel->netdev, "EQ 0x%x: Cons = 0x%x, irqn = 0x%x\n",
 		   eq->core.eqn, eq->core.cons_index, eq->core.irqn);
 
 	eqe_count = mlx5_eq_poll_irq_disabled(eq);
-	ret = eqe_count ? false : true;
 	if (!eqe_count) {
 		clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
-		return ret;
+		return -EIO;
 	}
 
 	netdev_err(sq->channel->netdev, "Recover %d eqes on EQ 0x%x\n",
 		   eqe_count, eq->core.eqn);
 	sq->channel->stats->eq_rearm++;
-	return ret;
+	return 0;
 }
 
 int mlx5e_tx_reporter_timeout(struct mlx5e_txqsq *sq)
@@ -264,13 +262,13 @@ static int mlx5e_tx_reporter_diagnose(st
 
 		err = mlx5_core_query_sq_state(priv->mdev, sq->sqn, &state);
 		if (err)
-			break;
+			goto unlock;
 
 		err = mlx5e_tx_reporter_build_diagnose_output(fmsg, sq->sqn,
 							      state,
 							      netif_xmit_stopped(sq->txq));
 		if (err)
-			break;
+			goto unlock;
 	}
 	err = devlink_fmsg_arr_pair_nest_end(fmsg);
 	if (err)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c	2019-07-28 02:28:39.000000000 -0400
@@ -11,24 +11,25 @@ static int get_route_and_out_devs(struct
 				  struct net_device **route_dev,
 				  struct net_device **out_dev)
 {
+	struct net_device *uplink_dev, *uplink_upper, *real_dev;
 	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
-	struct net_device *uplink_dev, *uplink_upper;
 	bool dst_is_lag_dev;
 
+	real_dev = is_vlan_dev(dev) ? vlan_dev_real_dev(dev) : dev;
 	uplink_dev = mlx5_eswitch_uplink_get_proto_dev(esw, REP_ETH);
 	uplink_upper = netdev_master_upper_dev_get(uplink_dev);
 	dst_is_lag_dev = (uplink_upper &&
 			  netif_is_lag_master(uplink_upper) &&
-			  dev == uplink_upper &&
+			  real_dev == uplink_upper &&
 			  mlx5_lag_is_sriov(priv->mdev));
 
 	/* if the egress device isn't on the same HW e-switch or
 	 * it's a LAG device, use the uplink
 	 */
-	if (!netdev_port_same_parent_id(priv->netdev, dev) ||
+	if (!netdev_port_same_parent_id(priv->netdev, real_dev) ||
 	    dst_is_lag_dev) {
-		*route_dev = uplink_dev;
-		*out_dev = *route_dev;
+		*route_dev = dev;
+		*out_dev = uplink_dev;
 	} else {
 		*route_dev = dev;
 		if (is_vlan_dev(*route_dev))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -1901,6 +1901,22 @@ static int mlx5e_flash_device(struct net
 	return mlx5e_ethtool_flash_device(priv, flash);
 }
 
+#ifndef CONFIG_MLX5_EN_RXNFC
+/* When CONFIG_MLX5_EN_RXNFC=n we only support ETHTOOL_GRXRINGS
+ * otherwise this function will be defined from en_fs_ethtool.c
+ */
+static int mlx5e_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, u32 *rule_locs)
+{
+	struct mlx5e_priv *priv = netdev_priv(dev);
+
+	if (info->cmd != ETHTOOL_GRXRINGS)
+		return -EOPNOTSUPP;
+	/* ring_count is needed by ethtool -x */
+	info->data = priv->channels.params.num_channels;
+	return 0;
+}
+#endif
+
 const struct ethtool_ops mlx5e_ethtool_ops = {
 	.get_drvinfo       = mlx5e_get_drvinfo,
 	.get_link          = ethtool_op_get_link,
@@ -1919,8 +1935,8 @@ const struct ethtool_ops mlx5e_ethtool_o
 	.get_rxfh_indir_size = mlx5e_get_rxfh_indir_size,
 	.get_rxfh          = mlx5e_get_rxfh,
 	.set_rxfh          = mlx5e_set_rxfh,
-#ifdef CONFIG_MLX5_EN_RXNFC
 	.get_rxnfc         = mlx5e_get_rxnfc,
+#ifdef CONFIG_MLX5_EN_RXNFC
 	.set_rxnfc         = mlx5e_set_rxnfc,
 #endif
 	.flash_device      = mlx5e_flash_device,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en.h linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en.h	2019-07-28 02:28:39.000000000 -0400
@@ -294,6 +294,7 @@ enum {
 	MLX5E_RQ_STATE_ENABLED,
 	MLX5E_RQ_STATE_AM,
 	MLX5E_RQ_STATE_NO_CSUM_COMPLETE,
+	MLX5E_RQ_STATE_CSUM_FULL, /* cqe_csum_full hw bit is set */
 };
 
 struct mlx5e_cq {
@@ -1059,6 +1060,7 @@ void mlx5e_del_vxlan_port(struct net_dev
 netdev_features_t mlx5e_features_check(struct sk_buff *skb,
 				       struct net_device *netdev,
 				       netdev_features_t features);
+int mlx5e_set_features(struct net_device *netdev, netdev_features_t features);
 #ifdef CONFIG_MLX5_ESWITCH
 int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac);
 int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate, int max_tx_rate);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -948,6 +948,9 @@ static int mlx5e_open_rq(struct mlx5e_ch
 	if (err)
 		goto err_destroy_rq;
 
+	if (MLX5_CAP_ETH(c->mdev, cqe_checksum_full))
+		__set_bit(MLX5E_RQ_STATE_CSUM_FULL, &c->rq.state);
+
 	if (params->rx_dim_enabled)
 		__set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);
 
@@ -3698,8 +3701,7 @@ static int mlx5e_handle_feature(struct n
 	return 0;
 }
 
-static int mlx5e_set_features(struct net_device *netdev,
-			      netdev_features_t features)
+int mlx5e_set_features(struct net_device *netdev, netdev_features_t features)
 {
 	netdev_features_t oper_features = netdev->features;
 	int err = 0;
@@ -3750,6 +3752,12 @@ static netdev_features_t mlx5e_fix_featu
 			netdev_warn(netdev, "Disabling LRO, not supported in legacy RQ\n");
 	}
 
+	if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)) {
+		features &= ~NETIF_F_RXHASH;
+		if (netdev->features & NETIF_F_RXHASH)
+			netdev_warn(netdev, "Disabling rxhash, not supported when CQE compress is active\n");
+	}
+
 	mutex_unlock(&priv->state_lock);
 
 	return features;
@@ -3875,6 +3883,9 @@ int mlx5e_hwstamp_set(struct mlx5e_priv
 	memcpy(&priv->tstamp, &config, sizeof(config));
 	mutex_unlock(&priv->state_lock);
 
+	/* might need to fix some features */
+	netdev_update_features(priv->netdev);
+
 	return copy_to_user(ifr->ifr_data, &config,
 			    sizeof(config)) ? -EFAULT : 0;
 }
@@ -4734,6 +4745,10 @@ static void mlx5e_build_nic_netdev(struc
 	if (!priv->channels.params.scatter_fcs_en)
 		netdev->features  &= ~NETIF_F_RXFCS;
 
+	/* prefere CQE compression over rxhash */
+	if (MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS))
+		netdev->features &= ~NETIF_F_RXHASH;
+
 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
 	if (FT_CAP(flow_modify_en) &&
 	    FT_CAP(modify_root) &&
@@ -5153,6 +5168,11 @@ static void mlx5e_detach(struct mlx5_cor
 	struct mlx5e_priv *priv = vpriv;
 	struct net_device *netdev = priv->netdev;
 
+#ifdef CONFIG_MLX5_ESWITCH
+	if (MLX5_ESWITCH_MANAGER(mdev) && vpriv == mdev)
+		return;
+#endif
+
 	if (!netif_device_present(netdev))
 		return;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c	2019-07-28 02:28:39.000000000 -0400
@@ -65,9 +65,26 @@ static void mlx5e_rep_indr_unregister_bl
 static void mlx5e_rep_get_drvinfo(struct net_device *dev,
 				  struct ethtool_drvinfo *drvinfo)
 {
+	struct mlx5e_priv *priv = netdev_priv(dev);
+	struct mlx5_core_dev *mdev = priv->mdev;
+
 	strlcpy(drvinfo->driver, mlx5e_rep_driver_name,
 		sizeof(drvinfo->driver));
 	strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
+	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+		 "%d.%d.%04d (%.16s)",
+		 fw_rev_maj(mdev), fw_rev_min(mdev),
+		 fw_rev_sub(mdev), mdev->board_id);
+}
+
+static void mlx5e_uplink_rep_get_drvinfo(struct net_device *dev,
+					 struct ethtool_drvinfo *drvinfo)
+{
+	struct mlx5e_priv *priv = netdev_priv(dev);
+
+	mlx5e_rep_get_drvinfo(dev, drvinfo);
+	strlcpy(drvinfo->bus_info, pci_name(priv->mdev->pdev),
+		sizeof(drvinfo->bus_info));
 }
 
 static const struct counter_desc sw_rep_stats_desc[] = {
@@ -363,7 +380,7 @@ static const struct ethtool_ops mlx5e_vf
 };
 
 static const struct ethtool_ops mlx5e_uplink_rep_ethtool_ops = {
-	.get_drvinfo	   = mlx5e_rep_get_drvinfo,
+	.get_drvinfo	   = mlx5e_uplink_rep_get_drvinfo,
 	.get_link	   = ethtool_op_get_link,
 	.get_strings       = mlx5e_rep_get_strings,
 	.get_sset_count    = mlx5e_rep_get_sset_count,
@@ -1333,6 +1350,7 @@ static const struct net_device_ops mlx5e
 	.ndo_get_vf_stats        = mlx5e_get_vf_stats,
 	.ndo_set_vf_vlan         = mlx5e_uplink_rep_set_vf_vlan,
 	.ndo_get_port_parent_id	 = mlx5e_rep_get_port_parent_id,
+	.ndo_set_features        = mlx5e_set_features,
 };
 
 bool mlx5e_eswitch_rep(struct net_device *netdev)
@@ -1406,10 +1424,9 @@ static void mlx5e_build_rep_netdev(struc
 
 	netdev->watchdog_timeo    = 15 * HZ;
 
+	netdev->features       |= NETIF_F_NETNS_LOCAL;
 
-	netdev->features	 |= NETIF_F_HW_TC | NETIF_F_NETNS_LOCAL;
-	netdev->hw_features      |= NETIF_F_HW_TC;
-
+	netdev->hw_features    |= NETIF_F_HW_TC;
 	netdev->hw_features    |= NETIF_F_SG;
 	netdev->hw_features    |= NETIF_F_IP_CSUM;
 	netdev->hw_features    |= NETIF_F_IPV6_CSUM;
@@ -1418,7 +1435,9 @@ static void mlx5e_build_rep_netdev(struc
 	netdev->hw_features    |= NETIF_F_TSO6;
 	netdev->hw_features    |= NETIF_F_RXCSUM;
 
-	if (rep->vport != MLX5_VPORT_UPLINK)
+	if (rep->vport == MLX5_VPORT_UPLINK)
+		netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
+	else
 		netdev->features |= NETIF_F_VLAN_CHALLENGED;
 
 	netdev->features |= netdev->hw_features;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c	2019-07-28 02:28:39.000000000 -0400
@@ -829,8 +829,14 @@ static inline void mlx5e_handle_csum(str
 		if (unlikely(get_ip_proto(skb, network_depth, proto) == IPPROTO_SCTP))
 			goto csum_unnecessary;
 
+		stats->csum_complete++;
 		skb->ip_summed = CHECKSUM_COMPLETE;
 		skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
+
+		if (test_bit(MLX5E_RQ_STATE_CSUM_FULL, &rq->state))
+			return; /* CQE csum covers all received bytes */
+
+		/* csum might need some fixups ...*/
 		if (network_depth > ETH_HLEN)
 			/* CQE csum is calculated from the IP header and does
 			 * not cover VLAN headers (if present). This will add
@@ -841,7 +847,6 @@ static inline void mlx5e_handle_csum(str
 						 skb->csum);
 
 		mlx5e_skb_padding_csum(skb, network_depth, proto, stats);
-		stats->csum_complete++;
 		return;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1561,7 +1561,7 @@ static int __parse_cls_flower(struct mlx
 	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CVLAN)) {
 		struct flow_match_vlan match;
 
-		flow_rule_match_vlan(rule, &match);
+		flow_rule_match_cvlan(rule, &match);
 		if (match.mask->vlan_id ||
 		    match.mask->vlan_priority ||
 		    match.mask->vlan_tpid) {
@@ -2572,9 +2572,6 @@ static int parse_tc_fdb_actions(struct m
 	if (!flow_action_has_entries(flow_action))
 		return -EINVAL;
 
-	attr->in_rep = rpriv->rep;
-	attr->in_mdev = priv->mdev;
-
 	flow_action_for_each(i, act, flow_action) {
 		switch (act->id) {
 		case FLOW_ACTION_DROP:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c	2019-07-28 02:28:39.000000000 -0400
@@ -950,7 +950,7 @@ static int esw_vport_enable_egress_acl(s
 		  vport->vport, MLX5_CAP_ESW_EGRESS_ACL(dev, log_max_ft_size));
 
 	root_ns = mlx5_get_flow_vport_acl_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_EGRESS,
-						    vport->vport);
+			mlx5_eswitch_vport_num_to_index(esw, vport->vport));
 	if (!root_ns) {
 		esw_warn(dev, "Failed to get E-Switch egress flow namespace for vport (%d)\n", vport->vport);
 		return -EOPNOTSUPP;
@@ -1068,7 +1068,7 @@ static int esw_vport_enable_ingress_acl(
 		  vport->vport, MLX5_CAP_ESW_INGRESS_ACL(dev, log_max_ft_size));
 
 	root_ns = mlx5_get_flow_vport_acl_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_INGRESS,
-						    vport->vport);
+			mlx5_eswitch_vport_num_to_index(esw, vport->vport));
 	if (!root_ns) {
 		esw_warn(dev, "Failed to get E-Switch ingress flow namespace for vport (%d)\n", vport->vport);
 		return -EOPNOTSUPP;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h	2019-07-28 02:28:39.000000000 -0400
@@ -431,6 +431,9 @@ static inline int mlx5_eswitch_index_to_
 	return index;
 }
 
+/* TODO: This mlx5e_tc function shouldn't be called by eswitch */
+void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw);
+
 #else  /* CONFIG_MLX5_ESWITCH */
 /* eswitch API stubs */
 static inline int  mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c	2019-07-28 02:28:39.000000000 -0400
@@ -363,7 +363,7 @@ static int esw_set_global_vlan_pop(struc
 	esw_debug(esw->dev, "%s applying global %s policy\n", __func__, val ? "pop" : "none");
 	for (vf_vport = 1; vf_vport < esw->enabled_vports; vf_vport++) {
 		rep = &esw->offloads.vport_reps[vf_vport];
-		if (rep->rep_if[REP_ETH].state != REP_LOADED)
+		if (atomic_read(&rep->rep_if[REP_ETH].state) != REP_LOADED)
 			continue;
 
 		err = __mlx5_eswitch_set_vport_vlan(esw, rep->vport, 0, 0, val);
@@ -1306,7 +1306,8 @@ int esw_offloads_init_reps(struct mlx5_e
 		ether_addr_copy(rep->hw_id, hw_id);
 
 		for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++)
-			rep->rep_if[rep_type].state = REP_UNREGISTERED;
+			atomic_set(&rep->rep_if[rep_type].state,
+				   REP_UNREGISTERED);
 	}
 
 	return 0;
@@ -1315,11 +1316,9 @@ int esw_offloads_init_reps(struct mlx5_e
 static void __esw_offloads_unload_rep(struct mlx5_eswitch *esw,
 				      struct mlx5_eswitch_rep *rep, u8 rep_type)
 {
-	if (rep->rep_if[rep_type].state != REP_LOADED)
-		return;
-
-	rep->rep_if[rep_type].unload(rep);
-	rep->rep_if[rep_type].state = REP_REGISTERED;
+	if (atomic_cmpxchg(&rep->rep_if[rep_type].state,
+			   REP_LOADED, REP_REGISTERED) == REP_LOADED)
+		rep->rep_if[rep_type].unload(rep);
 }
 
 static void __unload_reps_special_vport(struct mlx5_eswitch *esw, u8 rep_type)
@@ -1380,16 +1379,15 @@ static int __esw_offloads_load_rep(struc
 {
 	int err = 0;
 
-	if (rep->rep_if[rep_type].state != REP_REGISTERED)
-		return 0;
-
-	err = rep->rep_if[rep_type].load(esw->dev, rep);
-	if (err)
-		return err;
-
-	rep->rep_if[rep_type].state = REP_LOADED;
+	if (atomic_cmpxchg(&rep->rep_if[rep_type].state,
+			   REP_REGISTERED, REP_LOADED) == REP_REGISTERED) {
+		err = rep->rep_if[rep_type].load(esw->dev, rep);
+		if (err)
+			atomic_set(&rep->rep_if[rep_type].state,
+				   REP_REGISTERED);
+	}
 
-	return 0;
+	return err;
 }
 
 static int __load_reps_special_vport(struct mlx5_eswitch *esw, u8 rep_type)
@@ -1523,8 +1521,6 @@ static int mlx5_esw_offloads_pair(struct
 	return 0;
 }
 
-void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw);
-
 static void mlx5_esw_offloads_unpair(struct mlx5_eswitch *esw)
 {
 	mlx5e_tc_clean_fdb_peer_flows(esw);
@@ -2076,7 +2072,7 @@ void mlx5_eswitch_register_vport_reps(st
 		rep_if->get_proto_dev = __rep_if->get_proto_dev;
 		rep_if->priv = __rep_if->priv;
 
-		rep_if->state = REP_REGISTERED;
+		atomic_set(&rep_if->state, REP_REGISTERED);
 	}
 }
 EXPORT_SYMBOL(mlx5_eswitch_register_vport_reps);
@@ -2091,7 +2087,7 @@ void mlx5_eswitch_unregister_vport_reps(
 		__unload_reps_all_vport(esw, max_vf, rep_type);
 
 	mlx5_esw_for_all_reps(esw, i, rep)
-		rep->rep_if[rep_type].state = REP_UNREGISTERED;
+		atomic_set(&rep->rep_if[rep_type].state, REP_UNREGISTERED);
 }
 EXPORT_SYMBOL(mlx5_eswitch_unregister_vport_reps);
 
@@ -2111,7 +2107,7 @@ void *mlx5_eswitch_get_proto_dev(struct
 
 	rep = mlx5_eswitch_get_rep(esw, vport);
 
-	if (rep->rep_if[rep_type].state == REP_LOADED &&
+	if (atomic_read(&rep->rep_if[rep_type].state) == REP_LOADED &&
 	    rep->rep_if[rep_type].get_proto_dev)
 		return rep->rep_if[rep_type].get_proto_dev(rep);
 	return NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -1386,6 +1386,8 @@ static bool mlx5_flow_dests_cmp(struct m
 		if ((d1->type == MLX5_FLOW_DESTINATION_TYPE_VPORT &&
 		     d1->vport.num == d2->vport.num &&
 		     d1->vport.flags == d2->vport.flags &&
+		     ((d1->vport.flags & MLX5_FLOW_DEST_VPORT_VHCA_ID) ?
+		      (d1->vport.vhca_id == d2->vport.vhca_id) : true) &&
 		     ((d1->vport.flags & MLX5_FLOW_DEST_VPORT_REFORMAT_ID) ?
 		      (d1->vport.reformat_id == d2->vport.reformat_id) : true)) ||
 		    (d1->type == MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE &&
@@ -2284,7 +2286,7 @@ static struct mlx5_flow_root_namespace
 		cmds = mlx5_fs_cmd_get_default_ipsec_fpga_cmds(table_type);
 
 	/* Create the root namespace */
-	root_ns = kvzalloc(sizeof(*root_ns), GFP_KERNEL);
+	root_ns = kzalloc(sizeof(*root_ns), GFP_KERNEL);
 	if (!root_ns)
 		return NULL;
 
@@ -2427,6 +2429,7 @@ static void cleanup_egress_acls_root_ns(
 		cleanup_root_ns(steering->esw_egress_root_ns[i]);
 
 	kfree(steering->esw_egress_root_ns);
+	steering->esw_egress_root_ns = NULL;
 }
 
 static void cleanup_ingress_acls_root_ns(struct mlx5_core_dev *dev)
@@ -2441,6 +2444,7 @@ static void cleanup_ingress_acls_root_ns
 		cleanup_root_ns(steering->esw_ingress_root_ns[i]);
 
 	kfree(steering->esw_ingress_root_ns);
+	steering->esw_ingress_root_ns = NULL;
 }
 
 void mlx5_cleanup_fs(struct mlx5_core_dev *dev)
@@ -2609,6 +2613,7 @@ cleanup_root_ns:
 	for (i--; i >= 0; i--)
 		cleanup_root_ns(steering->esw_egress_root_ns[i]);
 	kfree(steering->esw_egress_root_ns);
+	steering->esw_egress_root_ns = NULL;
 	return err;
 }
 
@@ -2636,6 +2641,7 @@ cleanup_root_ns:
 	for (i--; i >= 0; i--)
 		cleanup_root_ns(steering->esw_ingress_root_ns[i]);
 	kfree(steering->esw_ingress_root_ns);
+	steering->esw_ingress_root_ns = NULL;
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c	2019-07-28 02:28:39.000000000 -0400
@@ -698,7 +698,9 @@ static int mlx5_rdma_setup_rn(struct ib_
 
 	prof->init(mdev, netdev, prof, ipriv);
 
-	mlx5e_attach_netdev(epriv);
+	err = mlx5e_attach_netdev(epriv);
+	if (err)
+		goto detach;
 	netif_carrier_off(netdev);
 
 	/* set rdma_netdev func pointers */
@@ -714,6 +716,11 @@ static int mlx5_rdma_setup_rn(struct ib_
 
 	return 0;
 
+detach:
+	prof->cleanup(epriv);
+	if (ipriv->sub_interface)
+		return err;
+	mlx5e_destroy_mdev_resources(mdev);
 destroy_ht:
 	mlx5i_pkey_qpn_ht_cleanup(netdev);
 	return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/Kconfig linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -7,6 +7,7 @@ config MLX5_CORE
 	depends on PCI
 	imply PTP_1588_CLOCK
 	imply VXLAN
+	imply MLXFW
 	default n
 	---help---
 	  Core driver for low level functionality of the ConnectX-4 and
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c	2019-07-28 02:28:39.000000000 -0400
@@ -535,23 +535,16 @@ void mlx5_init_clock(struct mlx5_core_de
 	do_div(ns, NSEC_PER_SEC / HZ);
 	clock->overflow_period = ns;
 
-	mdev->clock_info_page = alloc_page(GFP_KERNEL);
-	if (mdev->clock_info_page) {
-		mdev->clock_info = kmap(mdev->clock_info_page);
-		if (!mdev->clock_info) {
-			__free_page(mdev->clock_info_page);
-			mlx5_core_warn(mdev, "failed to map clock page\n");
-		} else {
-			mdev->clock_info->sign   = 0;
-			mdev->clock_info->nsec   = clock->tc.nsec;
-			mdev->clock_info->cycles = clock->tc.cycle_last;
-			mdev->clock_info->mask   = clock->cycles.mask;
-			mdev->clock_info->mult   = clock->nominal_c_mult;
-			mdev->clock_info->shift  = clock->cycles.shift;
-			mdev->clock_info->frac   = clock->tc.frac;
-			mdev->clock_info->overflow_period =
-						clock->overflow_period;
-		}
+	mdev->clock_info =
+		(struct mlx5_ib_clock_info *)get_zeroed_page(GFP_KERNEL);
+	if (mdev->clock_info) {
+		mdev->clock_info->nsec = clock->tc.nsec;
+		mdev->clock_info->cycles = clock->tc.cycle_last;
+		mdev->clock_info->mask = clock->cycles.mask;
+		mdev->clock_info->mult = clock->nominal_c_mult;
+		mdev->clock_info->shift = clock->cycles.shift;
+		mdev->clock_info->frac = clock->tc.frac;
+		mdev->clock_info->overflow_period = clock->overflow_period;
 	}
 
 	INIT_WORK(&clock->pps_info.out_work, mlx5_pps_out);
@@ -599,8 +592,7 @@ void mlx5_cleanup_clock(struct mlx5_core
 	cancel_delayed_work_sync(&clock->overflow_work);
 
 	if (mdev->clock_info) {
-		kunmap(mdev->clock_info_page);
-		__free_page(mdev->clock_info_page);
+		free_page((unsigned long)mdev->clock_info);
 		mdev->clock_info = NULL;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/lib/port_tun.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/lib/port_tun.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlx5/core/lib/port_tun.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlx5/core/lib/port_tun.c	2019-07-28 02:28:39.000000000 -0400
@@ -100,27 +100,12 @@ static int mlx5_set_entropy(struct mlx5_
 	 */
 	if (entropy_flags.gre_calc_supported &&
 	    reformat_type == MLX5_REFORMAT_TYPE_L2_TO_NVGRE) {
-		/* Other applications may change the global FW entropy
-		 * calculations settings. Check that the current entropy value
-		 * is the negative of the updated value.
-		 */
-		if (entropy_flags.force_enabled &&
-		    enable == entropy_flags.gre_calc_enabled) {
-			mlx5_core_warn(tun_entropy->mdev,
-				       "Unexpected GRE entropy calc setting - expected %d",
-				       !entropy_flags.gre_calc_enabled);
-			return -EOPNOTSUPP;
-		}
-		err = mlx5_set_port_gre_tun_entropy_calc(tun_entropy->mdev, enable,
-							 entropy_flags.force_supported);
+		if (!entropy_flags.force_supported)
+			return 0;
+		err = mlx5_set_port_gre_tun_entropy_calc(tun_entropy->mdev,
+							 enable, !enable);
 		if (err)
 			return err;
-		/* if we turn on the entropy we don't need to force it anymore */
-		if (entropy_flags.force_supported && enable) {
-			err = mlx5_set_port_gre_tun_entropy_calc(tun_entropy->mdev, 1, 0);
-			if (err)
-				return err;
-		}
 	} else if (entropy_flags.calc_supported) {
 		/* Other applications may change the global FW entropy
 		 * calculations settings. Check that the current entropy value
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -122,6 +122,12 @@ void *mlxsw_core_driver_priv(struct mlxs
 }
 EXPORT_SYMBOL(mlxsw_core_driver_priv);
 
+bool mlxsw_core_res_query_enabled(const struct mlxsw_core *mlxsw_core)
+{
+	return mlxsw_core->driver->res_query_enabled;
+}
+EXPORT_SYMBOL(mlxsw_core_res_query_enabled);
+
 struct mlxsw_rx_listener_item {
 	struct list_head list;
 	struct mlxsw_rx_listener rxl;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core_env.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core_env.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core_env.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core_env.c	2019-07-28 02:28:39.000000000 -0400
@@ -3,6 +3,7 @@
 
 #include <linux/kernel.h>
 #include <linux/err.h>
+#include <linux/sfp.h>
 
 #include "core.h"
 #include "core_env.h"
@@ -162,7 +163,7 @@ int mlxsw_env_get_module_info(struct mlx
 {
 	u8 module_info[MLXSW_REG_MCIA_EEPROM_MODULE_INFO_SIZE];
 	u16 offset = MLXSW_REG_MCIA_EEPROM_MODULE_INFO_SIZE;
-	u8 module_rev_id, module_id;
+	u8 module_rev_id, module_id, diag_mon;
 	unsigned int read_size;
 	int err;
 
@@ -195,8 +196,21 @@ int mlxsw_env_get_module_info(struct mlx
 		}
 		break;
 	case MLXSW_REG_MCIA_EEPROM_MODULE_INFO_ID_SFP:
+		/* Verify if transceiver provides diagnostic monitoring page */
+		err = mlxsw_env_query_module_eeprom(mlxsw_core, module,
+						    SFP_DIAGMON, 1, &diag_mon,
+						    &read_size);
+		if (err)
+			return err;
+
+		if (read_size < 1)
+			return -EIO;
+
 		modinfo->type       = ETH_MODULE_SFF_8472;
-		modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
+		if (diag_mon)
+			modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
+		else
+			modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN / 2;
 		break;
 	default:
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core.h linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core.h	2019-07-28 02:28:39.000000000 -0400
@@ -28,6 +28,8 @@ unsigned int mlxsw_core_max_ports(const
 
 void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core);
 
+bool mlxsw_core_res_query_enabled(const struct mlxsw_core *mlxsw_core);
+
 int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver);
 void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core_hwmon.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core_hwmon.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core_hwmon.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core_hwmon.c	2019-07-28 02:28:39.000000000 -0400
@@ -518,6 +518,9 @@ static int mlxsw_hwmon_module_init(struc
 	u8 width;
 	int err;
 
+	if (!mlxsw_core_res_query_enabled(mlxsw_hwmon->core))
+		return 0;
+
 	/* Add extra attributes for module temperature. Sensor index is
 	 * assigned to sensor_count value, while all indexed before
 	 * sensor_count are already utilized by the sensors connected through
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c	2019-07-28 02:28:39.000000000 -0400
@@ -740,6 +740,9 @@ mlxsw_thermal_modules_init(struct device
 	struct mlxsw_thermal_module *module_tz;
 	int i, err;
 
+	if (!mlxsw_core_res_query_enabled(core))
+		return 0;
+
 	thermal->tz_module_arr = kcalloc(module_count,
 					 sizeof(*thermal->tz_module_arr),
 					 GFP_KERNEL);
@@ -776,6 +779,9 @@ mlxsw_thermal_modules_fini(struct mlxsw_
 	unsigned int module_count = mlxsw_core_max_ports(thermal->core);
 	int i;
 
+	if (!mlxsw_core_res_query_enabled(thermal->core))
+		return;
+
 	for (i = module_count - 1; i >= 0; i--)
 		mlxsw_thermal_module_fini(&thermal->tz_module_arr[i]);
 	kfree(thermal->tz_module_arr);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/reg.h linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/reg.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/reg.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/reg.h	2019-07-28 02:28:39.000000000 -0400
@@ -997,7 +997,7 @@ static inline void mlxsw_reg_spaft_pack(
 	MLXSW_REG_ZERO(spaft, payload);
 	mlxsw_reg_spaft_local_port_set(payload, local_port);
 	mlxsw_reg_spaft_allow_untagged_set(payload, allow_untagged);
-	mlxsw_reg_spaft_allow_prio_tagged_set(payload, true);
+	mlxsw_reg_spaft_allow_prio_tagged_set(payload, allow_untagged);
 	mlxsw_reg_spaft_allow_tagged_set(payload, true);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c	2019-07-28 02:28:39.000000000 -0400
@@ -1171,13 +1171,12 @@ mlxsw_sp_acl_erp_delta_fill(const struct
 			return -EINVAL;
 	}
 	if (si == -1) {
-		/* The masks are the same, this cannot happen.
-		 * That means the caller is broken.
+		/* The masks are the same, this can happen in case eRPs with
+		 * the same mask were created in both A-TCAM and C-TCAM.
+		 * The only possible condition under which this can happen
+		 * is identical rule insertion. Delta is not possible here.
 		 */
-		WARN_ON(1);
-		*delta_start = 0;
-		*delta_mask = 0;
-		return 0;
+		return -EINVAL;
 	}
 	pmask = (unsigned char) parent_key->mask[__MASK_IDX(si)];
 	mask = (unsigned char) key->mask[__MASK_IDX(si)];
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c	2019-07-28 02:28:39.000000000 -0400
@@ -411,9 +411,9 @@ static const struct mlxsw_sp_sb_pr mlxsw
 	MLXSW_SP_SB_PR(MLXSW_REG_SBPR_MODE_STATIC, MLXSW_SP_SB_INFI),
 };
 
-#define MLXSW_SP2_SB_PR_INGRESS_SIZE	40960000
+#define MLXSW_SP2_SB_PR_INGRESS_SIZE	38128752
+#define MLXSW_SP2_SB_PR_EGRESS_SIZE	38128752
 #define MLXSW_SP2_SB_PR_INGRESS_MNG_SIZE (200 * 1000)
-#define MLXSW_SP2_SB_PR_EGRESS_SIZE	40960000
 
 static const struct mlxsw_sp_sb_pr mlxsw_sp2_sb_prs[] = {
 	/* Ingress pools. */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c	2019-05-05 21:32:03.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c	2019-07-28 13:34:20.000000000 -0400
@@ -3108,6 +3108,10 @@ mlxsw_sp_port_set_link_ksettings(struct
 	ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, &eth_proto_cap, NULL, NULL);
 
 	autoneg = cmd->base.autoneg == AUTONEG_ENABLE;
+	if (!autoneg && cmd->base.speed == SPEED_56000) {
+		netdev_err(dev, "56G not supported with autoneg off\n");
+		return -EINVAL;
+	}
 	eth_proto_new = autoneg ?
 		ops->to_ptys_advert_link(mlxsw_sp, cmd) :
 		ops->to_ptys_speed(mlxsw_sp, cmd->base.speed);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c	2019-07-28 02:28:39.000000000 -0400
@@ -247,8 +247,8 @@ static int mlxsw_sp_flower_parse_ip(stru
 				       match.mask->tos & 0x3);
 
 	mlxsw_sp_acl_rulei_keymask_u32(rulei, MLXSW_AFK_ELEMENT_IP_DSCP,
-				       match.key->tos >> 6,
-				       match.mask->tos >> 6);
+				       match.key->tos >> 2,
+				       match.mask->tos >> 2);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c	2019-07-28 02:28:39.000000000 -0400
@@ -2363,7 +2363,7 @@ static void mlxsw_sp_router_probe_unreso
 static void
 mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp *mlxsw_sp,
 			      struct mlxsw_sp_neigh_entry *neigh_entry,
-			      bool removing);
+			      bool removing, bool dead);
 
 static enum mlxsw_reg_rauht_op mlxsw_sp_rauht_op(bool adding)
 {
@@ -2494,7 +2494,8 @@ static void mlxsw_sp_router_neigh_event_
 
 	memcpy(neigh_entry->ha, ha, ETH_ALEN);
 	mlxsw_sp_neigh_entry_update(mlxsw_sp, neigh_entry, entry_connected);
-	mlxsw_sp_nexthop_neigh_update(mlxsw_sp, neigh_entry, !entry_connected);
+	mlxsw_sp_nexthop_neigh_update(mlxsw_sp, neigh_entry, !entry_connected,
+				      dead);
 
 	if (!neigh_entry->connected && list_empty(&neigh_entry->nexthop_list))
 		mlxsw_sp_neigh_entry_destroy(mlxsw_sp, neigh_entry);
@@ -3458,13 +3459,79 @@ static void __mlxsw_sp_nexthop_neigh_upd
 	nh->update = 1;
 }
 
+static int
+mlxsw_sp_nexthop_dead_neigh_replace(struct mlxsw_sp *mlxsw_sp,
+				    struct mlxsw_sp_neigh_entry *neigh_entry)
+{
+	struct neighbour *n, *old_n = neigh_entry->key.n;
+	struct mlxsw_sp_nexthop *nh;
+	bool entry_connected;
+	u8 nud_state, dead;
+	int err;
+
+	nh = list_first_entry(&neigh_entry->nexthop_list,
+			      struct mlxsw_sp_nexthop, neigh_list_node);
+
+	n = neigh_lookup(nh->nh_grp->neigh_tbl, &nh->gw_addr, nh->rif->dev);
+	if (!n) {
+		n = neigh_create(nh->nh_grp->neigh_tbl, &nh->gw_addr,
+				 nh->rif->dev);
+		if (IS_ERR(n))
+			return PTR_ERR(n);
+		neigh_event_send(n, NULL);
+	}
+
+	mlxsw_sp_neigh_entry_remove(mlxsw_sp, neigh_entry);
+	neigh_entry->key.n = n;
+	err = mlxsw_sp_neigh_entry_insert(mlxsw_sp, neigh_entry);
+	if (err)
+		goto err_neigh_entry_insert;
+
+	read_lock_bh(&n->lock);
+	nud_state = n->nud_state;
+	dead = n->dead;
+	read_unlock_bh(&n->lock);
+	entry_connected = nud_state & NUD_VALID && !dead;
+
+	list_for_each_entry(nh, &neigh_entry->nexthop_list,
+			    neigh_list_node) {
+		neigh_release(old_n);
+		neigh_clone(n);
+		__mlxsw_sp_nexthop_neigh_update(nh, !entry_connected);
+		mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh->nh_grp);
+	}
+
+	neigh_release(n);
+
+	return 0;
+
+err_neigh_entry_insert:
+	neigh_entry->key.n = old_n;
+	mlxsw_sp_neigh_entry_insert(mlxsw_sp, neigh_entry);
+	neigh_release(n);
+	return err;
+}
+
 static void
 mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp *mlxsw_sp,
 			      struct mlxsw_sp_neigh_entry *neigh_entry,
-			      bool removing)
+			      bool removing, bool dead)
 {
 	struct mlxsw_sp_nexthop *nh;
 
+	if (list_empty(&neigh_entry->nexthop_list))
+		return;
+
+	if (dead) {
+		int err;
+
+		err = mlxsw_sp_nexthop_dead_neigh_replace(mlxsw_sp,
+							  neigh_entry);
+		if (err)
+			dev_err(mlxsw_sp->bus_info->dev, "Failed to replace dead neigh\n");
+		return;
+	}
+
 	list_for_each_entry(nh, &neigh_entry->nexthop_list,
 			    neigh_list_node) {
 		__mlxsw_sp_nexthop_neigh_update(nh, removing);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c linux-libre-5.1.21-gnu/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c	2019-07-28 02:28:39.000000000 -0400
@@ -168,6 +168,7 @@ void nfp_tunnel_keep_alive(struct nfp_ap
 		return;
 	}
 
+	rcu_read_lock();
 	for (i = 0; i < count; i++) {
 		ipv4_addr = payload->tun_info[i].ipv4;
 		port = be32_to_cpu(payload->tun_info[i].egress_port);
@@ -183,6 +184,7 @@ void nfp_tunnel_keep_alive(struct nfp_ap
 		neigh_event_send(n, NULL);
 		neigh_release(n);
 	}
+	rcu_read_unlock();
 }
 
 static int
@@ -366,9 +368,10 @@ void nfp_tunnel_request_route(struct nfp
 
 	payload = nfp_flower_cmsg_get_data(skb);
 
+	rcu_read_lock();
 	netdev = nfp_app_repr_get(app, be32_to_cpu(payload->ingress_port));
 	if (!netdev)
-		goto route_fail_warning;
+		goto fail_rcu_unlock;
 
 	flow.daddr = payload->ipv4_addr;
 	flow.flowi4_proto = IPPROTO_UDP;
@@ -378,21 +381,23 @@ void nfp_tunnel_request_route(struct nfp
 	rt = ip_route_output_key(dev_net(netdev), &flow);
 	err = PTR_ERR_OR_ZERO(rt);
 	if (err)
-		goto route_fail_warning;
+		goto fail_rcu_unlock;
 #else
-	goto route_fail_warning;
+	goto fail_rcu_unlock;
 #endif
 
 	/* Get the neighbour entry for the lookup */
 	n = dst_neigh_lookup(&rt->dst, &flow.daddr);
 	ip_rt_put(rt);
 	if (!n)
-		goto route_fail_warning;
-	nfp_tun_write_neigh(n->dev, app, &flow, n, GFP_KERNEL);
+		goto fail_rcu_unlock;
+	nfp_tun_write_neigh(n->dev, app, &flow, n, GFP_ATOMIC);
 	neigh_release(n);
+	rcu_read_unlock();
 	return;
 
-route_fail_warning:
+fail_rcu_unlock:
+	rcu_read_unlock();
 	nfp_flower_cmsg_warn(app, "Requested route not found.\n");
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/qlogic/qed/qed_dev.c linux-libre-5.1.21-gnu/drivers/net/ethernet/qlogic/qed/qed_dev.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/qlogic/qed/qed_dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/qlogic/qed/qed_dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -3441,6 +3441,7 @@ static void qed_nvm_info_free(struct qed
 static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn,
 				 void __iomem *p_regview,
 				 void __iomem *p_doorbells,
+				 u64 db_phys_addr,
 				 enum qed_pci_personality personality)
 {
 	struct qed_dev *cdev = p_hwfn->cdev;
@@ -3449,6 +3450,7 @@ static int qed_hw_prepare_single(struct
 	/* Split PCI bars evenly between hwfns */
 	p_hwfn->regview = p_regview;
 	p_hwfn->doorbells = p_doorbells;
+	p_hwfn->db_phys_addr = db_phys_addr;
 
 	if (IS_VF(p_hwfn->cdev))
 		return qed_vf_hw_prepare(p_hwfn);
@@ -3544,7 +3546,9 @@ int qed_hw_prepare(struct qed_dev *cdev,
 	/* Initialize the first hwfn - will learn number of hwfns */
 	rc = qed_hw_prepare_single(p_hwfn,
 				   cdev->regview,
-				   cdev->doorbells, personality);
+				   cdev->doorbells,
+				   cdev->db_phys_addr,
+				   personality);
 	if (rc)
 		return rc;
 
@@ -3553,22 +3557,25 @@ int qed_hw_prepare(struct qed_dev *cdev,
 	/* Initialize the rest of the hwfns */
 	if (cdev->num_hwfns > 1) {
 		void __iomem *p_regview, *p_doorbell;
-		u8 __iomem *addr;
+		u64 db_phys_addr;
+		u32 offset;
 
 		/* adjust bar offset for second engine */
-		addr = cdev->regview +
-		       qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
-				       BAR_ID_0) / 2;
-		p_regview = addr;
+		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
+					 BAR_ID_0) / 2;
+		p_regview = cdev->regview + offset;
 
-		addr = cdev->doorbells +
-		       qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
-				       BAR_ID_1) / 2;
-		p_doorbell = addr;
+		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
+					 BAR_ID_1) / 2;
+
+		p_doorbell = cdev->doorbells + offset;
+
+		db_phys_addr = cdev->db_phys_addr + offset;
 
 		/* prepare second hw function */
 		rc = qed_hw_prepare_single(&cdev->hwfns[1], p_regview,
-					   p_doorbell, personality);
+					   p_doorbell, db_phys_addr,
+					   personality);
 
 		/* in case of error, need to free the previously
 		 * initiliazed hwfn 0.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/qlogic/qed/qed_iwarp.c linux-libre-5.1.21-gnu/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/qlogic/qed/qed_iwarp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/qlogic/qed/qed_iwarp.c	2019-07-28 02:28:39.000000000 -0400
@@ -2708,6 +2708,8 @@ qed_iwarp_ll2_start(struct qed_hwfn *p_h
 	data.input.rx_num_desc = n_ooo_bufs * 2;
 	data.input.tx_num_desc = data.input.rx_num_desc;
 	data.input.tx_max_bds_per_packet = QED_IWARP_MAX_BDS_PER_FPDU;
+	data.input.tx_tc = PKT_LB_TC;
+	data.input.tx_dest = QED_LL2_TX_DEST_LB;
 	data.p_connection_handle = &iwarp_info->ll2_mpa_handle;
 	data.input.secondary_queue = true;
 	data.cbs = &cbs;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/qlogic/qed/qed_rdma.c linux-libre-5.1.21-gnu/drivers/net/ethernet/qlogic/qed/qed_rdma.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/qlogic/qed/qed_rdma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/qlogic/qed/qed_rdma.c	2019-07-28 02:28:39.000000000 -0400
@@ -803,7 +803,7 @@ static int qed_rdma_add_user(void *rdma_
 				     dpi_start_offset +
 				     ((out_params->dpi) * p_hwfn->dpi_size));
 
-	out_params->dpi_phys_addr = p_hwfn->cdev->db_phys_addr +
+	out_params->dpi_phys_addr = p_hwfn->db_phys_addr +
 				    dpi_start_offset +
 				    ((out_params->dpi) * p_hwfn->dpi_size);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/realtek/r8169.c linux-libre-5.1.21-gnu/drivers/net/ethernet/realtek/r8169.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/realtek/r8169.c	2019-05-05 21:32:43.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/realtek/r8169.c	2019-07-28 13:35:03.000000000 -0400
@@ -5223,6 +5223,143 @@ static void rtl_hw_start_8411_2(struct r
 	/* disable aspm and clock request before access ephy */
 	rtl_hw_aspm_clkreq_enable(tp, false);
 	rtl_ephy_init(tp, e_info_8411_2, ARRAY_SIZE(e_info_8411_2));
+
+	/* The following Realtek-provided magic fixes an issue with the RX unit
+	 * getting confused after the PHY having been powered-down.
+	 */
+	r8168_mac_ocp_write(tp, 0xFC28, 0x0000);
+	r8168_mac_ocp_write(tp, 0xFC2A, 0x0000);
+	r8168_mac_ocp_write(tp, 0xFC2C, 0x0000);
+	r8168_mac_ocp_write(tp, 0xFC2E, 0x0000);
+	r8168_mac_ocp_write(tp, 0xFC30, 0x0000);
+	r8168_mac_ocp_write(tp, 0xFC32, 0x0000);
+	r8168_mac_ocp_write(tp, 0xFC34, 0x0000);
+	r8168_mac_ocp_write(tp, 0xFC36, 0x0000);
+	mdelay(3);
+	r8168_mac_ocp_write(tp, 0xFC26, 0x0000);
+
+	r8168_mac_ocp_write(tp, 0xF800, 0xE008);
+	r8168_mac_ocp_write(tp, 0xF802, 0xE00A);
+	r8168_mac_ocp_write(tp, 0xF804, 0xE00C);
+	r8168_mac_ocp_write(tp, 0xF806, 0xE00E);
+	r8168_mac_ocp_write(tp, 0xF808, 0xE027);
+	r8168_mac_ocp_write(tp, 0xF80A, 0xE04F);
+	r8168_mac_ocp_write(tp, 0xF80C, 0xE05E);
+	r8168_mac_ocp_write(tp, 0xF80E, 0xE065);
+	r8168_mac_ocp_write(tp, 0xF810, 0xC602);
+	r8168_mac_ocp_write(tp, 0xF812, 0xBE00);
+	r8168_mac_ocp_write(tp, 0xF814, 0x0000);
+	r8168_mac_ocp_write(tp, 0xF816, 0xC502);
+	r8168_mac_ocp_write(tp, 0xF818, 0xBD00);
+	r8168_mac_ocp_write(tp, 0xF81A, 0x074C);
+	r8168_mac_ocp_write(tp, 0xF81C, 0xC302);
+	r8168_mac_ocp_write(tp, 0xF81E, 0xBB00);
+	r8168_mac_ocp_write(tp, 0xF820, 0x080A);
+	r8168_mac_ocp_write(tp, 0xF822, 0x6420);
+	r8168_mac_ocp_write(tp, 0xF824, 0x48C2);
+	r8168_mac_ocp_write(tp, 0xF826, 0x8C20);
+	r8168_mac_ocp_write(tp, 0xF828, 0xC516);
+	r8168_mac_ocp_write(tp, 0xF82A, 0x64A4);
+	r8168_mac_ocp_write(tp, 0xF82C, 0x49C0);
+	r8168_mac_ocp_write(tp, 0xF82E, 0xF009);
+	r8168_mac_ocp_write(tp, 0xF830, 0x74A2);
+	r8168_mac_ocp_write(tp, 0xF832, 0x8CA5);
+	r8168_mac_ocp_write(tp, 0xF834, 0x74A0);
+	r8168_mac_ocp_write(tp, 0xF836, 0xC50E);
+	r8168_mac_ocp_write(tp, 0xF838, 0x9CA2);
+	r8168_mac_ocp_write(tp, 0xF83A, 0x1C11);
+	r8168_mac_ocp_write(tp, 0xF83C, 0x9CA0);
+	r8168_mac_ocp_write(tp, 0xF83E, 0xE006);
+	r8168_mac_ocp_write(tp, 0xF840, 0x74F8);
+	r8168_mac_ocp_write(tp, 0xF842, 0x48C4);
+	r8168_mac_ocp_write(tp, 0xF844, 0x8CF8);
+	r8168_mac_ocp_write(tp, 0xF846, 0xC404);
+	r8168_mac_ocp_write(tp, 0xF848, 0xBC00);
+	r8168_mac_ocp_write(tp, 0xF84A, 0xC403);
+	r8168_mac_ocp_write(tp, 0xF84C, 0xBC00);
+	r8168_mac_ocp_write(tp, 0xF84E, 0x0BF2);
+	r8168_mac_ocp_write(tp, 0xF850, 0x0C0A);
+	r8168_mac_ocp_write(tp, 0xF852, 0xE434);
+	r8168_mac_ocp_write(tp, 0xF854, 0xD3C0);
+	r8168_mac_ocp_write(tp, 0xF856, 0x49D9);
+	r8168_mac_ocp_write(tp, 0xF858, 0xF01F);
+	r8168_mac_ocp_write(tp, 0xF85A, 0xC526);
+	r8168_mac_ocp_write(tp, 0xF85C, 0x64A5);
+	r8168_mac_ocp_write(tp, 0xF85E, 0x1400);
+	r8168_mac_ocp_write(tp, 0xF860, 0xF007);
+	r8168_mac_ocp_write(tp, 0xF862, 0x0C01);
+	r8168_mac_ocp_write(tp, 0xF864, 0x8CA5);
+	r8168_mac_ocp_write(tp, 0xF866, 0x1C15);
+	r8168_mac_ocp_write(tp, 0xF868, 0xC51B);
+	r8168_mac_ocp_write(tp, 0xF86A, 0x9CA0);
+	r8168_mac_ocp_write(tp, 0xF86C, 0xE013);
+	r8168_mac_ocp_write(tp, 0xF86E, 0xC519);
+	r8168_mac_ocp_write(tp, 0xF870, 0x74A0);
+	r8168_mac_ocp_write(tp, 0xF872, 0x48C4);
+	r8168_mac_ocp_write(tp, 0xF874, 0x8CA0);
+	r8168_mac_ocp_write(tp, 0xF876, 0xC516);
+	r8168_mac_ocp_write(tp, 0xF878, 0x74A4);
+	r8168_mac_ocp_write(tp, 0xF87A, 0x48C8);
+	r8168_mac_ocp_write(tp, 0xF87C, 0x48CA);
+	r8168_mac_ocp_write(tp, 0xF87E, 0x9CA4);
+	r8168_mac_ocp_write(tp, 0xF880, 0xC512);
+	r8168_mac_ocp_write(tp, 0xF882, 0x1B00);
+	r8168_mac_ocp_write(tp, 0xF884, 0x9BA0);
+	r8168_mac_ocp_write(tp, 0xF886, 0x1B1C);
+	r8168_mac_ocp_write(tp, 0xF888, 0x483F);
+	r8168_mac_ocp_write(tp, 0xF88A, 0x9BA2);
+	r8168_mac_ocp_write(tp, 0xF88C, 0x1B04);
+	r8168_mac_ocp_write(tp, 0xF88E, 0xC508);
+	r8168_mac_ocp_write(tp, 0xF890, 0x9BA0);
+	r8168_mac_ocp_write(tp, 0xF892, 0xC505);
+	r8168_mac_ocp_write(tp, 0xF894, 0xBD00);
+	r8168_mac_ocp_write(tp, 0xF896, 0xC502);
+	r8168_mac_ocp_write(tp, 0xF898, 0xBD00);
+	r8168_mac_ocp_write(tp, 0xF89A, 0x0300);
+	r8168_mac_ocp_write(tp, 0xF89C, 0x051E);
+	r8168_mac_ocp_write(tp, 0xF89E, 0xE434);
+	r8168_mac_ocp_write(tp, 0xF8A0, 0xE018);
+	r8168_mac_ocp_write(tp, 0xF8A2, 0xE092);
+	r8168_mac_ocp_write(tp, 0xF8A4, 0xDE20);
+	r8168_mac_ocp_write(tp, 0xF8A6, 0xD3C0);
+	r8168_mac_ocp_write(tp, 0xF8A8, 0xC50F);
+	r8168_mac_ocp_write(tp, 0xF8AA, 0x76A4);
+	r8168_mac_ocp_write(tp, 0xF8AC, 0x49E3);
+	r8168_mac_ocp_write(tp, 0xF8AE, 0xF007);
+	r8168_mac_ocp_write(tp, 0xF8B0, 0x49C0);
+	r8168_mac_ocp_write(tp, 0xF8B2, 0xF103);
+	r8168_mac_ocp_write(tp, 0xF8B4, 0xC607);
+	r8168_mac_ocp_write(tp, 0xF8B6, 0xBE00);
+	r8168_mac_ocp_write(tp, 0xF8B8, 0xC606);
+	r8168_mac_ocp_write(tp, 0xF8BA, 0xBE00);
+	r8168_mac_ocp_write(tp, 0xF8BC, 0xC602);
+	r8168_mac_ocp_write(tp, 0xF8BE, 0xBE00);
+	r8168_mac_ocp_write(tp, 0xF8C0, 0x0C4C);
+	r8168_mac_ocp_write(tp, 0xF8C2, 0x0C28);
+	r8168_mac_ocp_write(tp, 0xF8C4, 0x0C2C);
+	r8168_mac_ocp_write(tp, 0xF8C6, 0xDC00);
+	r8168_mac_ocp_write(tp, 0xF8C8, 0xC707);
+	r8168_mac_ocp_write(tp, 0xF8CA, 0x1D00);
+	r8168_mac_ocp_write(tp, 0xF8CC, 0x8DE2);
+	r8168_mac_ocp_write(tp, 0xF8CE, 0x48C1);
+	r8168_mac_ocp_write(tp, 0xF8D0, 0xC502);
+	r8168_mac_ocp_write(tp, 0xF8D2, 0xBD00);
+	r8168_mac_ocp_write(tp, 0xF8D4, 0x00AA);
+	r8168_mac_ocp_write(tp, 0xF8D6, 0xE0C0);
+	r8168_mac_ocp_write(tp, 0xF8D8, 0xC502);
+	r8168_mac_ocp_write(tp, 0xF8DA, 0xBD00);
+	r8168_mac_ocp_write(tp, 0xF8DC, 0x0132);
+
+	r8168_mac_ocp_write(tp, 0xFC26, 0x8000);
+
+	r8168_mac_ocp_write(tp, 0xFC2A, 0x0743);
+	r8168_mac_ocp_write(tp, 0xFC2C, 0x0801);
+	r8168_mac_ocp_write(tp, 0xFC2E, 0x0BE9);
+	r8168_mac_ocp_write(tp, 0xFC30, 0x02FD);
+	r8168_mac_ocp_write(tp, 0xFC32, 0x0C25);
+	r8168_mac_ocp_write(tp, 0xFC34, 0x00A9);
+	r8168_mac_ocp_write(tp, 0xFC36, 0x012D);
+
 	rtl_hw_aspm_clkreq_enable(tp, true);
 }
 
@@ -6896,6 +7033,8 @@ static int rtl8169_resume(struct device
 	struct net_device *dev = dev_get_drvdata(device);
 	struct rtl8169_private *tp = netdev_priv(dev);
 
+	rtl_rar_set(tp, dev->dev_addr);
+
 	clk_prepare_enable(tp->clk);
 
 	if (netif_running(dev))
@@ -6929,6 +7068,7 @@ static int rtl8169_runtime_resume(struct
 {
 	struct net_device *dev = dev_get_drvdata(device);
 	struct rtl8169_private *tp = netdev_priv(dev);
+
 	rtl_rar_set(tp, dev->dev_addr);
 
 	if (!tp->TxDescArray)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/renesas/sh_eth.c linux-libre-5.1.21-gnu/drivers/net/ethernet/renesas/sh_eth.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/renesas/sh_eth.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/renesas/sh_eth.c	2019-07-28 02:28:39.000000000 -0400
@@ -1594,6 +1594,10 @@ static void sh_eth_dev_exit(struct net_d
 	sh_eth_get_stats(ndev);
 	mdp->cd->soft_reset(ndev);
 
+	/* Set the RMII mode again if required */
+	if (mdp->cd->rmiimode)
+		sh_eth_write(ndev, 0x1, RMIIMODE);
+
 	/* Set MAC address again */
 	update_mac_address(ndev);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/seeq/sgiseeq.c linux-libre-5.1.21-gnu/drivers/net/ethernet/seeq/sgiseeq.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/seeq/sgiseeq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/seeq/sgiseeq.c	2019-07-28 02:28:39.000000000 -0400
@@ -735,6 +735,7 @@ static int sgiseeq_probe(struct platform
 	}
 
 	platform_set_drvdata(pdev, dev);
+	SET_NETDEV_DEV(dev, &pdev->dev);
 	sp = netdev_priv(dev);
 
 	/* Make private data page aligned */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/sis/sis900.c linux-libre-5.1.21-gnu/drivers/net/ethernet/sis/sis900.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/sis/sis900.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/sis/sis900.c	2019-07-28 02:28:39.000000000 -0400
@@ -1057,7 +1057,7 @@ sis900_open(struct net_device *net_dev)
 	sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED);
 
 	/* Enable all known interrupts by setting the interrupt mask. */
-	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
 	sw32(cr, RxENA | sr32(cr));
 	sw32(ier, IE);
 
@@ -1578,7 +1578,7 @@ static void sis900_tx_timeout(struct net
 	sw32(txdp, sis_priv->tx_ring_dma);
 
 	/* Enable all known interrupts by setting the interrupt mask. */
-	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
 }
 
 /**
@@ -1618,7 +1618,7 @@ sis900_start_xmit(struct sk_buff *skb, s
 			spin_unlock_irqrestore(&sis_priv->lock, flags);
 			return NETDEV_TX_OK;
 	}
-	sis_priv->tx_ring[entry].cmdsts = (OWN | skb->len);
+	sis_priv->tx_ring[entry].cmdsts = (OWN | INTR | skb->len);
 	sw32(cr, TxENA | sr32(cr));
 
 	sis_priv->cur_tx ++;
@@ -1674,7 +1674,7 @@ static irqreturn_t sis900_interrupt(int
 	do {
 		status = sr32(isr);
 
-		if ((status & (HIBERR|TxURN|TxERR|TxIDLE|RxORN|RxERR|RxOK)) == 0)
+		if ((status & (HIBERR|TxURN|TxERR|TxIDLE|TxDESC|RxORN|RxERR|RxOK)) == 0)
 			/* nothing intresting happened */
 			break;
 		handled = 1;
@@ -1684,7 +1684,7 @@ static irqreturn_t sis900_interrupt(int
 			/* Rx interrupt */
 			sis900_rx(net_dev);
 
-		if (status & (TxURN | TxERR | TxIDLE))
+		if (status & (TxURN | TxERR | TxIDLE | TxDESC))
 			/* Tx interrupt */
 			sis900_finish_xmit(net_dev);
 
@@ -1896,8 +1896,8 @@ static void sis900_finish_xmit (struct n
 
 		if (tx_status & OWN) {
 			/* The packet is not transmitted yet (owned by hardware) !
-			 * Note: the interrupt is generated only when Tx Machine
-			 * is idle, so this is an almost impossible case */
+			 * Note: this is an almost impossible condition
+			 * in case of TxDESC ('descriptor interrupt') */
 			break;
 		}
 
@@ -2473,7 +2473,7 @@ static int sis900_resume(struct pci_dev
 	sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED);
 
 	/* Enable all known interrupts by setting the interrupt mask. */
-	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
 	sw32(cr, RxENA | sr32(cr));
 	sw32(ier, IE);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/socionext/netsec.c linux-libre-5.1.21-gnu/drivers/net/ethernet/socionext/netsec.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/socionext/netsec.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/socionext/netsec.c	2019-07-28 02:28:39.000000000 -0400
@@ -1029,7 +1029,6 @@ static void netsec_free_dring(struct net
 static int netsec_alloc_dring(struct netsec_priv *priv, enum ring_id id)
 {
 	struct netsec_desc_ring *dring = &priv->desc_ring[id];
-	int i;
 
 	dring->vaddr = dma_alloc_coherent(priv->dev, DESC_SZ * DESC_NUM,
 					  &dring->desc_dma, GFP_KERNEL);
@@ -1040,19 +1039,6 @@ static int netsec_alloc_dring(struct net
 	if (!dring->desc)
 		goto err;
 
-	if (id == NETSEC_RING_TX) {
-		for (i = 0; i < DESC_NUM; i++) {
-			struct netsec_de *de;
-
-			de = dring->vaddr + (DESC_SZ * i);
-			/* de->attr is not going to be accessed by the NIC
-			 * until netsec_set_tx_de() is called.
-			 * No need for a dma_wmb() here
-			 */
-			de->attr = 1U << NETSEC_TX_SHIFT_OWN_FIELD;
-		}
-	}
-
 	return 0;
 err:
 	netsec_free_dring(priv, id);
@@ -1060,6 +1046,23 @@ err:
 	return -ENOMEM;
 }
 
+static void netsec_setup_tx_dring(struct netsec_priv *priv)
+{
+	struct netsec_desc_ring *dring = &priv->desc_ring[NETSEC_RING_TX];
+	int i;
+
+	for (i = 0; i < DESC_NUM; i++) {
+		struct netsec_de *de;
+
+		de = dring->vaddr + (DESC_SZ * i);
+		/* de->attr is not going to be accessed by the NIC
+		 * until netsec_set_tx_de() is called.
+		 * No need for a dma_wmb() here
+		 */
+		de->attr = 1U << NETSEC_TX_SHIFT_OWN_FIELD;
+	}
+}
+
 static int netsec_setup_rx_dring(struct netsec_priv *priv)
 {
 	struct netsec_desc_ring *dring = &priv->desc_ring[NETSEC_RING_RX];
@@ -1361,6 +1364,7 @@ static int netsec_netdev_open(struct net
 
 	pm_runtime_get_sync(priv->dev);
 
+	netsec_setup_tx_dring(priv);
 	ret = netsec_setup_rx_dring(priv);
 	if (ret) {
 		netif_err(priv, probe, priv->ndev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/common.h linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/common.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/common.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/common.h	2019-07-28 02:28:39.000000000 -0400
@@ -261,7 +261,7 @@ struct stmmac_safety_stats {
 #define STMMAC_COAL_TX_TIMER	1000
 #define STMMAC_MAX_COAL_TX_TICK	100000
 #define STMMAC_TX_MAX_FRAMES	256
-#define STMMAC_TX_FRAMES	25
+#define STMMAC_TX_FRAMES	1
 
 /* Packets types */
 enum packets_types {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -216,6 +216,12 @@ static void dwmac1000_set_filter(struct
 					    GMAC_ADDR_LOW(reg));
 			reg++;
 		}
+
+		while (reg <= perfect_addr_number) {
+			writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
+			writel(0, ioaddr + GMAC_ADDR_LOW(reg));
+			reg++;
+		}
 	}
 
 #ifdef FRAME_FILTER_DEBUG
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -444,14 +444,20 @@ static void dwmac4_set_filter(struct mac
 		 * are required
 		 */
 		value |= GMAC_PACKET_FILTER_PR;
-	} else if (!netdev_uc_empty(dev)) {
-		int reg = 1;
+	} else {
 		struct netdev_hw_addr *ha;
+		int reg = 1;
 
 		netdev_for_each_uc_addr(ha, dev) {
 			dwmac4_set_umac_addr(hw, ha->addr, reg);
 			reg++;
 		}
+
+		while (reg <= GMAC_MAX_PERFECT_ADDRESSES) {
+			writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
+			writel(0, ioaddr + GMAC_ADDR_LOW(reg));
+			reg++;
+		}
 	}
 
 	writel(value, ioaddr + GMAC_PACKET_FILTER);
@@ -469,8 +475,9 @@ static void dwmac4_flow_ctrl(struct mac_
 	if (fc & FLOW_RX) {
 		pr_debug("\tReceive Flow-Control ON\n");
 		flow |= GMAC_RX_FLOW_CTRL_RFE;
-		writel(flow, ioaddr + GMAC_RX_FLOW_CTRL);
 	}
+	writel(flow, ioaddr + GMAC_RX_FLOW_CTRL);
+
 	if (fc & FLOW_TX) {
 		pr_debug("\tTransmit Flow-Control ON\n");
 
@@ -478,7 +485,7 @@ static void dwmac4_flow_ctrl(struct mac_
 			pr_debug("\tduplex mode: PAUSE %d\n", pause_time);
 
 		for (queue = 0; queue < tx_cnt; queue++) {
-			flow |= GMAC_TX_FLOW_CTRL_TFE;
+			flow = GMAC_TX_FLOW_CTRL_TFE;
 
 			if (duplex)
 				flow |=
@@ -486,6 +493,9 @@ static void dwmac4_flow_ctrl(struct mac_
 
 			writel(flow, ioaddr + GMAC_QX_TX_FLOW_CTRL(queue));
 		}
+	} else {
+		for (queue = 0; queue < tx_cnt; queue++)
+			writel(0, ioaddr + GMAC_QX_TX_FLOW_CTRL(queue));
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c	2019-07-28 02:28:39.000000000 -0400
@@ -346,8 +346,6 @@ static int mediatek_dwmac_probe(struct p
 		return PTR_ERR(plat_dat);
 
 	plat_dat->interface = priv_plat->phy_mode;
-	/* clk_csr_i = 250-300MHz & MDC = clk_csr_i/124 */
-	plat_dat->clk_csr = 5;
 	plat_dat->has_gmac4 = 1;
 	plat_dat->has_gmac = 0;
 	plat_dat->pmt = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c	2019-07-28 02:28:39.000000000 -0400
@@ -893,6 +893,11 @@ static int sun8i_dwmac_set_syscon(struct
 		 * address. No need to mask it again.
 		 */
 		reg |= 1 << H3_EPHY_ADDR_SHIFT;
+	} else {
+		/* For SoCs without internal PHY the PHY selection bit should be
+		 * set to 0 (external PHY).
+		 */
+		reg &= ~H3_EPHY_SELECT;
 	}
 
 	if (!of_property_read_u32(node, "allwinner,tx-delay-ps", &val)) {
@@ -1015,6 +1020,8 @@ static struct mac_device_info *sun8i_dwm
 	mac->mac = &sun8i_dwmac_ops;
 	mac->dma = &sun8i_dwmac_dma_ops;
 
+	priv->dev->priv_flags |= IFF_UNICAST_FLT;
+
 	/* The loopback bit seems to be re-set when link change
 	 * Simply mask it each time
 	 * Speed 10/100/1000 are set in BIT(2)/BIT(3)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -460,7 +460,7 @@ stmmac_get_pauseparam(struct net_device
 	} else {
 		if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,
 				       netdev->phydev->supported) ||
-		    linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+		    !linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
 				      netdev->phydev->supported))
 			return;
 	}
@@ -491,7 +491,7 @@ stmmac_set_pauseparam(struct net_device
 	} else {
 		if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,
 				       phy->supported) ||
-		    linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+		    !linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
 				      phy->supported))
 			return -EOPNOTSUPP;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c	2019-07-28 02:28:39.000000000 -0400
@@ -122,7 +122,7 @@ static int adjust_systime(void __iomem *
 		 * programmed with (2^32 – <new_sec_value>)
 		 */
 		if (gmac4)
-			sec = (100000000ULL - sec);
+			sec = -sec;
 
 		value = readl(ioaddr + PTP_TCR);
 		if (value & PTP_TCR_TSCTRLSSR)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -2058,6 +2058,9 @@ static int stmmac_napi_check(struct stmm
 						 &priv->xstats, chan);
 	struct stmmac_channel *ch = &priv->channel[chan];
 
+	if (status)
+		status |= handle_rx | handle_tx;
+
 	if ((status & handle_rx) && (chan < priv->plat->rx_queues_to_use)) {
 		stmmac_disable_dma_irq(priv, priv->ioaddr, chan);
 		napi_schedule_irqoff(&ch->rx_napi);
@@ -2208,6 +2211,10 @@ static int stmmac_init_dma_engine(struct
 	if (priv->plat->axi)
 		stmmac_axi(priv, priv->ioaddr, priv->plat->axi);
 
+	/* DMA CSR Channel configuration */
+	for (chan = 0; chan < dma_csr_ch; chan++)
+		stmmac_init_chan(priv, priv->ioaddr, priv->plat->dma_cfg, chan);
+
 	/* DMA RX Channel Configuration */
 	for (chan = 0; chan < rx_channels_count; chan++) {
 		rx_q = &priv->rx_queue[chan];
@@ -2233,10 +2240,6 @@ static int stmmac_init_dma_engine(struct
 				       tx_q->tx_tail_addr, chan);
 	}
 
-	/* DMA CSR Channel configuration */
-	for (chan = 0; chan < dma_csr_ch; chan++)
-		stmmac_init_chan(priv, priv->ioaddr, priv->plat->dma_cfg, chan);
-
 	return ret;
 }
 
@@ -2957,12 +2960,15 @@ static netdev_tx_t stmmac_tso_xmit(struc
 
 	/* Manage tx mitigation */
 	tx_q->tx_count_frames += nfrags + 1;
-	if (priv->tx_coal_frames <= tx_q->tx_count_frames) {
+	if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
+	    !(priv->synopsys_id >= DWMAC_CORE_4_00 &&
+	    (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+	    priv->hwts_tx_en)) {
+		stmmac_tx_timer_arm(priv, queue);
+	} else {
+		tx_q->tx_count_frames = 0;
 		stmmac_set_tx_ic(priv, desc);
 		priv->xstats.tx_set_ic_bit++;
-		tx_q->tx_count_frames = 0;
-	} else {
-		stmmac_tx_timer_arm(priv, queue);
 	}
 
 	skb_tx_timestamp(skb);
@@ -3052,17 +3058,8 @@ static netdev_tx_t stmmac_xmit(struct sk
 
 	/* Manage oversized TCP frames for GMAC4 device */
 	if (skb_is_gso(skb) && priv->tso) {
-		if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
-			/*
-			 * There is no way to determine the number of TSO
-			 * capable Queues. Let's use always the Queue 0
-			 * because if TSO is supported then at least this
-			 * one will be capable.
-			 */
-			skb_set_queue_mapping(skb, 0);
-
+		if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))
 			return stmmac_tso_xmit(skb, dev);
-		}
 	}
 
 	if (unlikely(stmmac_tx_avail(priv, queue) < nfrags + 1)) {
@@ -3176,12 +3173,15 @@ static netdev_tx_t stmmac_xmit(struct sk
 	 * element in case of no SG.
 	 */
 	tx_q->tx_count_frames += nfrags + 1;
-	if (priv->tx_coal_frames <= tx_q->tx_count_frames) {
+	if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
+	    !(priv->synopsys_id >= DWMAC_CORE_4_00 &&
+	    (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+	    priv->hwts_tx_en)) {
+		stmmac_tx_timer_arm(priv, queue);
+	} else {
+		tx_q->tx_count_frames = 0;
 		stmmac_set_tx_ic(priv, desc);
 		priv->xstats.tx_set_ic_bit++;
-		tx_q->tx_count_frames = 0;
-	} else {
-		stmmac_tx_timer_arm(priv, queue);
 	}
 
 	skb_tx_timestamp(skb);
@@ -3338,6 +3338,7 @@ static inline void stmmac_rx_refill(stru
 		entry = STMMAC_GET_ENTRY(entry, DMA_RX_SIZE);
 	}
 	rx_q->dirty_rx = entry;
+	stmmac_set_rx_tail_ptr(priv, priv->ioaddr, rx_q->rx_tail_addr, queue);
 }
 
 /**
@@ -3875,6 +3876,23 @@ static int stmmac_setup_tc(struct net_de
 	}
 }
 
+static u16 stmmac_select_queue(struct net_device *dev, struct sk_buff *skb,
+			       struct net_device *sb_dev,
+			       select_queue_fallback_t fallback)
+{
+	if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
+		/*
+		 * There is no way to determine the number of TSO
+		 * capable Queues. Let's use always the Queue 0
+		 * because if TSO is supported then at least this
+		 * one will be capable.
+		 */
+		return 0;
+	}
+
+	return fallback(dev, skb, NULL) % dev->real_num_tx_queues;
+}
+
 static int stmmac_set_mac_address(struct net_device *ndev, void *addr)
 {
 	struct stmmac_priv *priv = netdev_priv(ndev);
@@ -4091,6 +4109,7 @@ static const struct net_device_ops stmma
 	.ndo_tx_timeout = stmmac_tx_timeout,
 	.ndo_do_ioctl = stmmac_ioctl,
 	.ndo_setup_tc = stmmac_setup_tc,
+	.ndo_select_queue = stmmac_select_queue,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller = stmmac_poll_controller,
 #endif
@@ -4379,10 +4398,10 @@ int stmmac_dvr_probe(struct device *devi
 	 * set the MDC clock dynamically according to the csr actual
 	 * clock input.
 	 */
-	if (!priv->plat->clk_csr)
-		stmmac_clk_csr_set(priv);
-	else
+	if (priv->plat->clk_csr >= 0)
 		priv->clk_csr = priv->plat->clk_csr;
+	else
+		stmmac_clk_csr_set(priv);
 
 	stmmac_check_pcs_mode(priv);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c	2019-07-28 02:28:39.000000000 -0400
@@ -267,7 +267,8 @@ int stmmac_mdio_reset(struct mii_bus *bu
 			of_property_read_u32_array(np,
 				"snps,reset-delays-us", data->delays, 3);
 
-			if (gpio_request(data->reset_gpio, "mdio-reset"))
+			if (devm_gpio_request(priv->device, data->reset_gpio,
+					      "mdio-reset"))
 				return 0;
 		}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c	2019-07-28 02:28:39.000000000 -0400
@@ -408,7 +408,10 @@ stmmac_probe_config_dt(struct platform_d
 	/* Default to phy auto-detection */
 	plat->phy_addr = -1;
 
-	/* Get clk_csr from device tree */
+	/* Default to get clk_csr from stmmac_clk_crs_set(),
+	 * or get clk_csr from device tree.
+	 */
+	plat->clk_csr = -1;
 	of_property_read_u32(np, "clk_csr", &plat->clk_csr);
 
 	/* "snps,phy-addr" is not a standard property. Mark it as deprecated
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/ti/cpsw_ale.c linux-libre-5.1.21-gnu/drivers/net/ethernet/ti/cpsw_ale.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/ti/cpsw_ale.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/ti/cpsw_ale.c	2019-07-28 02:28:39.000000000 -0400
@@ -482,24 +482,25 @@ int cpsw_ale_del_vlan(struct cpsw_ale *a
 }
 EXPORT_SYMBOL_GPL(cpsw_ale_del_vlan);
 
-void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti)
+void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti, int port)
 {
 	u32 ale_entry[ALE_ENTRY_WORDS];
-	int type, idx;
 	int unreg_mcast = 0;
-
-	/* Only bother doing the work if the setting is actually changing */
-	if (ale->allmulti == allmulti)
-		return;
-
-	/* Remember the new setting to check against next time */
-	ale->allmulti = allmulti;
+	int type, idx;
 
 	for (idx = 0; idx < ale->params.ale_entries; idx++) {
+		int vlan_members;
+
 		cpsw_ale_read(ale, idx, ale_entry);
 		type = cpsw_ale_get_entry_type(ale_entry);
 		if (type != ALE_TYPE_VLAN)
 			continue;
+		vlan_members =
+			cpsw_ale_get_vlan_member_list(ale_entry,
+						      ale->vlan_field_bits);
+
+		if (port != -1 && !(vlan_members & BIT(port)))
+			continue;
 
 		unreg_mcast =
 			cpsw_ale_get_vlan_unreg_mcast(ale_entry,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/ti/cpsw_ale.h linux-libre-5.1.21-gnu/drivers/net/ethernet/ti/cpsw_ale.h
--- linux-libre-5.1-gnu/drivers/net/ethernet/ti/cpsw_ale.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/ti/cpsw_ale.h	2019-07-28 02:28:39.000000000 -0400
@@ -37,7 +37,6 @@ struct cpsw_ale {
 	struct cpsw_ale_params	params;
 	struct timer_list	timer;
 	unsigned long		ageout;
-	int			allmulti;
 	u32			version;
 	/* These bits are different on NetCP NU Switch ALE */
 	u32			port_mask_bits;
@@ -116,7 +115,7 @@ int cpsw_ale_del_mcast(struct cpsw_ale *
 int cpsw_ale_add_vlan(struct cpsw_ale *ale, u16 vid, int port, int untag,
 			int reg_mcast, int unreg_mcast);
 int cpsw_ale_del_vlan(struct cpsw_ale *ale, u16 vid, int port);
-void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti);
+void cpsw_ale_set_allmulti(struct cpsw_ale *ale, int allmulti, int port);
 
 int cpsw_ale_control_get(struct cpsw_ale *ale, int port, int control);
 int cpsw_ale_control_set(struct cpsw_ale *ale, int port,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/ti/cpsw.c linux-libre-5.1.21-gnu/drivers/net/ethernet/ti/cpsw.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/ti/cpsw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/ti/cpsw.c	2019-07-28 02:28:39.000000000 -0400
@@ -800,12 +800,17 @@ static int cpsw_purge_all_mc(struct net_
 
 static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
 {
-	struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	struct cpsw_common *cpsw = priv->cpsw;
+	int slave_port = -1;
+
+	if (cpsw->data.dual_emac)
+		slave_port = priv->emac_port + 1;
 
 	if (ndev->flags & IFF_PROMISC) {
 		/* Enable promiscuous mode */
 		cpsw_set_promiscious(ndev, true);
-		cpsw_ale_set_allmulti(cpsw->ale, IFF_ALLMULTI);
+		cpsw_ale_set_allmulti(cpsw->ale, IFF_ALLMULTI, slave_port);
 		return;
 	} else {
 		/* Disable promiscuous mode */
@@ -813,7 +818,8 @@ static void cpsw_ndo_set_rx_mode(struct
 	}
 
 	/* Restore allmulti on vlans if necessary */
-	cpsw_ale_set_allmulti(cpsw->ale, ndev->flags & IFF_ALLMULTI);
+	cpsw_ale_set_allmulti(cpsw->ale,
+			      ndev->flags & IFF_ALLMULTI, slave_port);
 
 	/* add/remove mcast address either for real netdev or for vlan */
 	__hw_addr_ref_sync_dev(&ndev->mc, ndev, cpsw_add_mc_addr,
@@ -3124,6 +3130,7 @@ static void cpsw_get_ringparam(struct ne
 	struct cpsw_common *cpsw = priv->cpsw;
 
 	/* not supported */
+	ering->tx_max_pending = descs_pool_size - CPSW_MAX_QUEUES;
 	ering->tx_max_pending = 0;
 	ering->tx_pending = cpdma_get_num_tx_descs(cpsw->dma);
 	ering->rx_max_pending = descs_pool_size - CPSW_MAX_QUEUES;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ethernet/xilinx/xilinx_axienet_main.c linux-libre-5.1.21-gnu/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
--- linux-libre-5.1-gnu/drivers/net/ethernet/xilinx/xilinx_axienet_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ethernet/xilinx/xilinx_axienet_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -614,6 +614,10 @@ static void axienet_start_xmit_done(stru
 
 	ndev->stats.tx_packets += packets;
 	ndev->stats.tx_bytes += size;
+
+	/* Matches barrier in axienet_start_xmit */
+	smp_mb();
+
 	netif_wake_queue(ndev);
 }
 
@@ -669,9 +673,19 @@ axienet_start_xmit(struct sk_buff *skb,
 	cur_p = &lp->tx_bd_v[lp->tx_bd_tail];
 
 	if (axienet_check_tx_bd_space(lp, num_frag)) {
-		if (!netif_queue_stopped(ndev))
-			netif_stop_queue(ndev);
-		return NETDEV_TX_BUSY;
+		if (netif_queue_stopped(ndev))
+			return NETDEV_TX_BUSY;
+
+		netif_stop_queue(ndev);
+
+		/* Matches barrier in axienet_start_xmit_done */
+		smp_mb();
+
+		/* Space might have just been freed - check again */
+		if (axienet_check_tx_bd_space(lp, num_frag))
+			return NETDEV_TX_BUSY;
+
+		netif_wake_queue(ndev);
 	}
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/geneve.c linux-libre-5.1.21-gnu/drivers/net/geneve.c
--- linux-libre-5.1-gnu/drivers/net/geneve.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/geneve.c	2019-07-28 02:28:39.000000000 -0400
@@ -396,7 +396,7 @@ static int geneve_udp_encap_err_lookup(s
 	u8 zero_vni[3] = { 0 };
 	u8 *vni = zero_vni;
 
-	if (skb->len < GENEVE_BASE_HLEN)
+	if (!pskb_may_pull(skb, skb_transport_offset(skb) + GENEVE_BASE_HLEN))
 		return -EINVAL;
 
 	geneveh = geneve_hdr(skb);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/gtp.c linux-libre-5.1.21-gnu/drivers/net/gtp.c
--- linux-libre-5.1-gnu/drivers/net/gtp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/gtp.c	2019-07-28 02:28:39.000000000 -0400
@@ -289,16 +289,29 @@ static int gtp1u_udp_encap_recv(struct g
 	return gtp_rx(pctx, skb, hdrlen, gtp->role);
 }
 
-static void gtp_encap_destroy(struct sock *sk)
+static void __gtp_encap_destroy(struct sock *sk)
 {
 	struct gtp_dev *gtp;
 
-	gtp = rcu_dereference_sk_user_data(sk);
+	lock_sock(sk);
+	gtp = sk->sk_user_data;
 	if (gtp) {
+		if (gtp->sk0 == sk)
+			gtp->sk0 = NULL;
+		else
+			gtp->sk1u = NULL;
 		udp_sk(sk)->encap_type = 0;
 		rcu_assign_sk_user_data(sk, NULL);
 		sock_put(sk);
 	}
+	release_sock(sk);
+}
+
+static void gtp_encap_destroy(struct sock *sk)
+{
+	rtnl_lock();
+	__gtp_encap_destroy(sk);
+	rtnl_unlock();
 }
 
 static void gtp_encap_disable_sock(struct sock *sk)
@@ -306,7 +319,7 @@ static void gtp_encap_disable_sock(struc
 	if (!sk)
 		return;
 
-	gtp_encap_destroy(sk);
+	__gtp_encap_destroy(sk);
 }
 
 static void gtp_encap_disable(struct gtp_dev *gtp)
@@ -800,7 +813,8 @@ static struct sock *gtp_encap_enable_soc
 		goto out_sock;
 	}
 
-	if (rcu_dereference_sk_user_data(sock->sk)) {
+	lock_sock(sock->sk);
+	if (sock->sk->sk_user_data) {
 		sk = ERR_PTR(-EBUSY);
 		goto out_sock;
 	}
@@ -816,6 +830,7 @@ static struct sock *gtp_encap_enable_soc
 	setup_udp_tunnel_sock(sock_net(sock->sk), sock, &tuncfg);
 
 out_sock:
+	release_sock(sock->sk);
 	sockfd_put(sock);
 	return sk;
 }
@@ -847,8 +862,13 @@ static int gtp_encap_enable(struct gtp_d
 
 	if (data[IFLA_GTP_ROLE]) {
 		role = nla_get_u32(data[IFLA_GTP_ROLE]);
-		if (role > GTP_ROLE_SGSN)
+		if (role > GTP_ROLE_SGSN) {
+			if (sk0)
+				gtp_encap_disable_sock(sk0);
+			if (sk1u)
+				gtp_encap_disable_sock(sk1u);
 			return -EINVAL;
+		}
 	}
 
 	gtp->sk0 = sk0;
@@ -949,7 +969,7 @@ static int ipv4_pdp_add(struct gtp_dev *
 
 	}
 
-	pctx = kmalloc(sizeof(struct pdp_ctx), GFP_KERNEL);
+	pctx = kmalloc(sizeof(*pctx), GFP_ATOMIC);
 	if (pctx == NULL)
 		return -ENOMEM;
 
@@ -1038,6 +1058,7 @@ static int gtp_genl_new_pdp(struct sk_bu
 		return -EINVAL;
 	}
 
+	rtnl_lock();
 	rcu_read_lock();
 
 	gtp = gtp_find_dev(sock_net(skb->sk), info->attrs);
@@ -1062,6 +1083,7 @@ static int gtp_genl_new_pdp(struct sk_bu
 
 out_unlock:
 	rcu_read_unlock();
+	rtnl_unlock();
 	return err;
 }
 
@@ -1363,9 +1385,9 @@ late_initcall(gtp_init);
 
 static void __exit gtp_fini(void)
 {
-	unregister_pernet_subsys(&gtp_net_ops);
 	genl_unregister_family(&gtp_genl_family);
 	rtnl_link_unregister(&gtp_link_ops);
+	unregister_pernet_subsys(&gtp_net_ops);
 
 	pr_info("GTP module unloaded\n");
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/hyperv/netvsc.c linux-libre-5.1.21-gnu/drivers/net/hyperv/netvsc.c
--- linux-libre-5.1-gnu/drivers/net/hyperv/netvsc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/hyperv/netvsc.c	2019-07-28 02:28:39.000000000 -0400
@@ -875,12 +875,6 @@ static inline int netvsc_send_pkt(
 	} else if (ret == -EAGAIN) {
 		netif_tx_stop_queue(txq);
 		ndev_ctx->eth_stats.stop_queue++;
-		if (atomic_read(&nvchan->queue_sends) < 1 &&
-		    !net_device->tx_disable) {
-			netif_tx_wake_queue(txq);
-			ndev_ctx->eth_stats.wake_queue++;
-			ret = -ENOSPC;
-		}
 	} else {
 		netdev_err(ndev,
 			   "Unable to send packet pages %u len %u, ret %d\n",
@@ -888,6 +882,15 @@ static inline int netvsc_send_pkt(
 			   ret);
 	}
 
+	if (netif_tx_queue_stopped(txq) &&
+	    atomic_read(&nvchan->queue_sends) < 1 &&
+	    !net_device->tx_disable) {
+		netif_tx_wake_queue(txq);
+		ndev_ctx->eth_stats.wake_queue++;
+		if (ret == -EAGAIN)
+			ret = -ENOSPC;
+	}
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/hyperv/netvsc_drv.c linux-libre-5.1.21-gnu/drivers/net/hyperv/netvsc_drv.c
--- linux-libre-5.1-gnu/drivers/net/hyperv/netvsc_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/hyperv/netvsc_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -849,7 +849,6 @@ int netvsc_recv_callback(struct net_devi
 
 	if (unlikely(!skb)) {
 		++net_device_ctx->eth_stats.rx_no_memory;
-		rcu_read_unlock();
 		return NVSP_STAT_FAIL;
 	}
 
@@ -2414,7 +2413,7 @@ static struct  hv_driver netvsc_drv = {
 	.probe = netvsc_probe,
 	.remove = netvsc_remove,
 	.driver = {
-		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
+		.probe_type = PROBE_FORCE_SYNCHRONOUS,
 	},
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ipvlan/ipvlan_main.c linux-libre-5.1.21-gnu/drivers/net/ipvlan/ipvlan_main.c
--- linux-libre-5.1-gnu/drivers/net/ipvlan/ipvlan_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ipvlan/ipvlan_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -112,7 +112,7 @@ static void ipvlan_port_destroy(struct n
 }
 
 #define IPVLAN_FEATURES \
-	(NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
+	(NETIF_F_SG | NETIF_F_CSUM_MASK | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
 	 NETIF_F_GSO | NETIF_F_TSO | NETIF_F_GSO_ROBUST | \
 	 NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_GRO | NETIF_F_RXCSUM | \
 	 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/macsec.c linux-libre-5.1.21-gnu/drivers/net/macsec.c
--- linux-libre-5.1-gnu/drivers/net/macsec.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/macsec.c	2019-07-28 02:28:39.000000000 -0400
@@ -869,6 +869,7 @@ static void macsec_reset_skb(struct sk_b
 
 static void macsec_finalize_skb(struct sk_buff *skb, u8 icv_len, u8 hdr_len)
 {
+	skb->ip_summed = CHECKSUM_NONE;
 	memmove(skb->data + hdr_len, skb->data, 2 * ETH_ALEN);
 	skb_pull(skb, hdr_len);
 	pskb_trim_unique(skb, skb->len - icv_len);
@@ -1103,10 +1104,9 @@ static rx_handler_result_t macsec_handle
 	}
 
 	skb = skb_unshare(skb, GFP_ATOMIC);
-	if (!skb) {
-		*pskb = NULL;
+	*pskb = skb;
+	if (!skb)
 		return RX_HANDLER_CONSUMED;
-	}
 
 	pulled_sci = pskb_may_pull(skb, macsec_extra_len(true));
 	if (!pulled_sci) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/Makefile linux-libre-5.1.21-gnu/drivers/net/Makefile
--- linux-libre-5.1-gnu/drivers/net/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -40,7 +40,7 @@ obj-$(CONFIG_ARCNET) += arcnet/
 obj-$(CONFIG_DEV_APPLETALK) += appletalk/
 obj-$(CONFIG_CAIF) += caif/
 obj-$(CONFIG_CAN) += can/
-obj-$(CONFIG_NET_DSA) += dsa/
+obj-y += dsa/
 obj-$(CONFIG_ETHERNET) += ethernet/
 obj-$(CONFIG_FDDI) += fddi/
 obj-$(CONFIG_HIPPI) += hippi/
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/asix.c linux-libre-5.1.21-gnu/drivers/net/phy/asix.c
--- linux-libre-5.1-gnu/drivers/net/phy/asix.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/phy/asix.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,57 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/* Driver for Asix PHYs
- *
- * Author: Michael Schmitz <schmitzmic@gmail.com>
- */
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mii.h>
-#include <linux/phy.h>
-
-#define PHY_ID_ASIX_AX88796B		0x003b1841
-
-MODULE_DESCRIPTION("Asix PHY driver");
-MODULE_AUTHOR("Michael Schmitz <schmitzmic@gmail.com>");
-MODULE_LICENSE("GPL");
-
-/**
- * asix_soft_reset - software reset the PHY via BMCR_RESET bit
- * @phydev: target phy_device struct
- *
- * Description: Perform a software PHY reset using the standard
- * BMCR_RESET bit and poll for the reset bit to be cleared.
- * Toggle BMCR_RESET bit off to accommodate broken AX8796B PHY implementation
- * such as used on the Individual Computers' X-Surf 100 Zorro card.
- *
- * Returns: 0 on success, < 0 on failure
- */
-static int asix_soft_reset(struct phy_device *phydev)
-{
-	int ret;
-
-	/* Asix PHY won't reset unless reset bit toggles */
-	ret = phy_write(phydev, MII_BMCR, 0);
-	if (ret < 0)
-		return ret;
-
-	return genphy_soft_reset(phydev);
-}
-
-static struct phy_driver asix_driver[] = { {
-	.phy_id		= PHY_ID_ASIX_AX88796B,
-	.name		= "Asix Electronics AX88796B",
-	.phy_id_mask	= 0xfffffff0,
-	.features	= PHY_BASIC_FEATURES,
-	.soft_reset	= asix_soft_reset,
-} };
-
-module_phy_driver(asix_driver);
-
-static struct mdio_device_id __maybe_unused asix_tbl[] = {
-	{ PHY_ID_ASIX_AX88796B, 0xfffffff0 },
-	{ }
-};
-
-MODULE_DEVICE_TABLE(mdio, asix_tbl);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/ax88796b.c linux-libre-5.1.21-gnu/drivers/net/phy/ax88796b.c
--- linux-libre-5.1-gnu/drivers/net/phy/ax88796b.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/drivers/net/phy/ax88796b.c	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Driver for Asix PHYs
+ *
+ * Author: Michael Schmitz <schmitzmic@gmail.com>
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+
+#define PHY_ID_ASIX_AX88796B		0x003b1841
+
+MODULE_DESCRIPTION("Asix PHY driver");
+MODULE_AUTHOR("Michael Schmitz <schmitzmic@gmail.com>");
+MODULE_LICENSE("GPL");
+
+/**
+ * asix_soft_reset - software reset the PHY via BMCR_RESET bit
+ * @phydev: target phy_device struct
+ *
+ * Description: Perform a software PHY reset using the standard
+ * BMCR_RESET bit and poll for the reset bit to be cleared.
+ * Toggle BMCR_RESET bit off to accommodate broken AX8796B PHY implementation
+ * such as used on the Individual Computers' X-Surf 100 Zorro card.
+ *
+ * Returns: 0 on success, < 0 on failure
+ */
+static int asix_soft_reset(struct phy_device *phydev)
+{
+	int ret;
+
+	/* Asix PHY won't reset unless reset bit toggles */
+	ret = phy_write(phydev, MII_BMCR, 0);
+	if (ret < 0)
+		return ret;
+
+	return genphy_soft_reset(phydev);
+}
+
+static struct phy_driver asix_driver[] = { {
+	.phy_id		= PHY_ID_ASIX_AX88796B,
+	.name		= "Asix Electronics AX88796B",
+	.phy_id_mask	= 0xfffffff0,
+	.features	= PHY_BASIC_FEATURES,
+	.soft_reset	= asix_soft_reset,
+} };
+
+module_phy_driver(asix_driver);
+
+static struct mdio_device_id __maybe_unused asix_tbl[] = {
+	{ PHY_ID_ASIX_AX88796B, 0xfffffff0 },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(mdio, asix_tbl);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/dp83867.c linux-libre-5.1.21-gnu/drivers/net/phy/dp83867.c
--- linux-libre-5.1-gnu/drivers/net/phy/dp83867.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/phy/dp83867.c	2019-07-28 02:28:39.000000000 -0400
@@ -26,10 +26,18 @@
 
 /* Extended Registers */
 #define DP83867_CFG4            0x0031
+#define DP83867_CFG4_SGMII_ANEG_MASK (BIT(5) | BIT(6))
+#define DP83867_CFG4_SGMII_ANEG_TIMER_11MS   (3 << 5)
+#define DP83867_CFG4_SGMII_ANEG_TIMER_800US  (2 << 5)
+#define DP83867_CFG4_SGMII_ANEG_TIMER_2US    (1 << 5)
+#define DP83867_CFG4_SGMII_ANEG_TIMER_16MS   (0 << 5)
+
 #define DP83867_RGMIICTL	0x0032
 #define DP83867_STRAP_STS1	0x006E
 #define DP83867_RGMIIDCTL	0x0086
 #define DP83867_IO_MUX_CFG	0x0170
+#define DP83867_10M_SGMII_CFG   0x016F
+#define DP83867_10M_SGMII_RATE_ADAPT_MASK BIT(7)
 
 #define DP83867_SW_RESET	BIT(15)
 #define DP83867_SW_RESTART	BIT(14)
@@ -247,10 +255,8 @@ static int dp83867_config_init(struct ph
 		ret = phy_write(phydev, MII_DP83867_PHYCTRL, val);
 		if (ret)
 			return ret;
-	}
 
-	if ((phydev->interface >= PHY_INTERFACE_MODE_RGMII_ID) &&
-	    (phydev->interface <= PHY_INTERFACE_MODE_RGMII_RXID)) {
+		/* Set up RGMII delays */
 		val = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_RGMIICTL);
 
 		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
@@ -277,6 +283,33 @@ static int dp83867_config_init(struct ph
 				       DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL);
 	}
 
+	if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
+		/* For support SPEED_10 in SGMII mode
+		 * DP83867_10M_SGMII_RATE_ADAPT bit
+		 * has to be cleared by software. That
+		 * does not affect SPEED_100 and
+		 * SPEED_1000.
+		 */
+		ret = phy_modify_mmd(phydev, DP83867_DEVADDR,
+				     DP83867_10M_SGMII_CFG,
+				     DP83867_10M_SGMII_RATE_ADAPT_MASK,
+				     0);
+		if (ret)
+			return ret;
+
+		/* After reset SGMII Autoneg timer is set to 2us (bits 6 and 5
+		 * are 01). That is not enough to finalize autoneg on some
+		 * devices. Increase this timer duration to maximum 16ms.
+		 */
+		ret = phy_modify_mmd(phydev, DP83867_DEVADDR,
+				     DP83867_CFG4,
+				     DP83867_CFG4_SGMII_ANEG_MASK,
+				     DP83867_CFG4_SGMII_ANEG_TIMER_16MS);
+
+		if (ret)
+			return ret;
+	}
+
 	/* Enable Interrupt output INT_OE in CFG3 register */
 	if (phy_interrupt_is_valid(phydev)) {
 		val = phy_read(phydev, DP83867_CFG3);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/Kconfig linux-libre-5.1.21-gnu/drivers/net/phy/Kconfig
--- linux-libre-5.1-gnu/drivers/net/phy/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/phy/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -242,7 +242,7 @@ config AQUANTIA_PHY
 	---help---
 	  Currently supports the Aquantia AQ1202, AQ2104, AQR105, AQR405
 
-config ASIX_PHY
+config AX88796B_PHY
 	tristate "Asix PHYs"
 	help
 	  Currently supports the Asix Electronics PHY found in the X-Surf 100
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/Makefile linux-libre-5.1.21-gnu/drivers/net/phy/Makefile
--- linux-libre-5.1-gnu/drivers/net/phy/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/phy/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -51,7 +51,7 @@ ifdef CONFIG_HWMON
 aquantia-objs			+= aquantia_hwmon.o
 endif
 obj-$(CONFIG_AQUANTIA_PHY)	+= aquantia.o
-obj-$(CONFIG_ASIX_PHY)		+= asix.o
+obj-$(CONFIG_AX88796B_PHY)	+= ax88796b.o
 obj-$(CONFIG_AT803X_PHY)	+= at803x.o
 obj-$(CONFIG_BCM63XX_PHY)	+= bcm63xx.o
 obj-$(CONFIG_BCM7XXX_PHY)	+= bcm7xxx.o
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/marvell10g.c linux-libre-5.1.21-gnu/drivers/net/phy/marvell10g.c
--- linux-libre-5.1-gnu/drivers/net/phy/marvell10g.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/phy/marvell10g.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,6 +31,9 @@
 #define MV_PHY_ALASKA_NBT_QUIRK_REV	(MARVELL_PHY_ID_88X3310 | 0xa)
 
 enum {
+	MV_PMA_BOOT		= 0xc050,
+	MV_PMA_BOOT_FATAL	= BIT(0),
+
 	MV_PCS_BASE_T		= 0x0000,
 	MV_PCS_BASE_R		= 0x1000,
 	MV_PCS_1000BASEX	= 0x2000,
@@ -211,6 +214,16 @@ static int mv3310_probe(struct phy_devic
 	    (phydev->c45_ids.devices_in_package & mmd_mask) != mmd_mask)
 		return -ENODEV;
 
+	ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_BOOT);
+	if (ret < 0)
+		return ret;
+
+	if (ret & MV_PMA_BOOT_FATAL) {
+		dev_warn(&phydev->mdio.dev,
+			 "PHY failed to boot firmware, status=%04x\n", ret);
+		return -ENODEV;
+	}
+
 	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/phy_device.c linux-libre-5.1.21-gnu/drivers/net/phy/phy_device.c
--- linux-libre-5.1-gnu/drivers/net/phy/phy_device.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/phy/phy_device.c	2019-07-28 02:28:39.000000000 -0400
@@ -948,6 +948,9 @@ int phy_connect_direct(struct net_device
 {
 	int rc;
 
+	if (!dev)
+		return -EINVAL;
+
 	rc = phy_attach_direct(dev, phydev, phydev->dev_flags, interface);
 	if (rc)
 		return rc;
@@ -1290,6 +1293,9 @@ struct phy_device *phy_attach(struct net
 	struct device *d;
 	int rc;
 
+	if (!dev)
+		return ERR_PTR(-EINVAL);
+
 	/* Search the list of PHY devices on the mdio bus for the
 	 * PHY with the requested name
 	 */
@@ -1829,13 +1835,25 @@ EXPORT_SYMBOL(genphy_read_status);
  */
 int genphy_soft_reset(struct phy_device *phydev)
 {
+	u16 res = BMCR_RESET;
 	int ret;
 
-	ret = phy_set_bits(phydev, MII_BMCR, BMCR_RESET);
+	if (phydev->autoneg == AUTONEG_ENABLE)
+		res |= BMCR_ANRESTART;
+
+	ret = phy_modify(phydev, MII_BMCR, BMCR_ISOLATE, res);
 	if (ret < 0)
 		return ret;
 
-	return phy_poll_reset(phydev);
+	ret = phy_poll_reset(phydev);
+	if (ret)
+		return ret;
+
+	/* BMCR may be reset to defaults */
+	if (phydev->autoneg == AUTONEG_DISABLE)
+		ret = genphy_setup_forced(phydev);
+
+	return ret;
 }
 EXPORT_SYMBOL(genphy_soft_reset);
 
@@ -2044,11 +2062,14 @@ bool phy_validate_pause(struct phy_devic
 			struct ethtool_pauseparam *pp)
 {
 	if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,
-			       phydev->supported) ||
-	    (!linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
-				phydev->supported) &&
-	     pp->rx_pause != pp->tx_pause))
+			       phydev->supported) && pp->rx_pause)
+		return false;
+
+	if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+			       phydev->supported) &&
+	    pp->rx_pause != pp->tx_pause)
 		return false;
+
 	return true;
 }
 EXPORT_SYMBOL(phy_validate_pause);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/phylink.c linux-libre-5.1.21-gnu/drivers/net/phy/phylink.c
--- linux-libre-5.1-gnu/drivers/net/phy/phylink.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/phy/phylink.c	2019-07-28 02:28:39.000000000 -0400
@@ -51,6 +51,10 @@ struct phylink {
 
 	/* The link configuration settings */
 	struct phylink_link_state link_config;
+
+	/* The current settings */
+	phy_interface_t cur_interface;
+
 	struct gpio_desc *link_gpio;
 	struct timer_list link_poll;
 	void (*get_fixed_state)(struct net_device *dev,
@@ -453,12 +457,12 @@ static void phylink_resolve(struct work_
 		if (!link_state.link) {
 			netif_carrier_off(ndev);
 			pl->ops->mac_link_down(ndev, pl->link_an_mode,
-					       pl->phy_state.interface);
+					       pl->cur_interface);
 			netdev_info(ndev, "Link is Down\n");
 		} else {
+			pl->cur_interface = link_state.interface;
 			pl->ops->mac_link_up(ndev, pl->link_an_mode,
-					     pl->phy_state.interface,
-					     pl->phydev);
+					     pl->cur_interface, pl->phydev);
 
 			netif_carrier_on(ndev);
 
@@ -1076,6 +1080,7 @@ EXPORT_SYMBOL_GPL(phylink_ethtool_ksetti
 int phylink_ethtool_ksettings_set(struct phylink *pl,
 				  const struct ethtool_link_ksettings *kset)
 {
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(support);
 	struct ethtool_link_ksettings our_kset;
 	struct phylink_link_state config;
 	int ret;
@@ -1086,11 +1091,12 @@ int phylink_ethtool_ksettings_set(struct
 	    kset->base.autoneg != AUTONEG_ENABLE)
 		return -EINVAL;
 
+	linkmode_copy(support, pl->supported);
 	config = pl->link_config;
 
 	/* Mask out unsupported advertisements */
 	linkmode_and(config.advertising, kset->link_modes.advertising,
-		     pl->supported);
+		     support);
 
 	/* FIXME: should we reject autoneg if phy/mac does not support it? */
 	if (kset->base.autoneg == AUTONEG_DISABLE) {
@@ -1100,7 +1106,7 @@ int phylink_ethtool_ksettings_set(struct
 		 * duplex.
 		 */
 		s = phy_lookup_setting(kset->base.speed, kset->base.duplex,
-				       pl->supported, false);
+				       support, false);
 		if (!s)
 			return -EINVAL;
 
@@ -1129,7 +1135,7 @@ int phylink_ethtool_ksettings_set(struct
 		__set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising);
 	}
 
-	if (phylink_validate(pl, pl->supported, &config))
+	if (phylink_validate(pl, support, &config))
 		return -EINVAL;
 
 	/* If autonegotiation is enabled, we must have an advertisement */
@@ -1579,6 +1585,7 @@ static int phylink_sfp_module_insert(voi
 {
 	struct phylink *pl = upstream;
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(support1);
 	struct phylink_link_state config;
 	phy_interface_t iface;
 	int ret = 0;
@@ -1606,6 +1613,8 @@ static int phylink_sfp_module_insert(voi
 		return ret;
 	}
 
+	linkmode_copy(support1, support);
+
 	iface = sfp_select_interface(pl->sfp_bus, id, config.advertising);
 	if (iface == PHY_INTERFACE_MODE_NA) {
 		netdev_err(pl->netdev,
@@ -1615,7 +1624,7 @@ static int phylink_sfp_module_insert(voi
 	}
 
 	config.interface = iface;
-	ret = phylink_validate(pl, support, &config);
+	ret = phylink_validate(pl, support1, &config);
 	if (ret) {
 		netdev_err(pl->netdev, "validation of %s/%s with support %*pb failed: %d\n",
 			   phylink_an_mode_str(MLO_AN_INBAND),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/phy/sfp.c linux-libre-5.1.21-gnu/drivers/net/phy/sfp.c
--- linux-libre-5.1-gnu/drivers/net/phy/sfp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/phy/sfp.c	2019-07-28 02:28:39.000000000 -0400
@@ -186,10 +186,11 @@ struct sfp {
 	struct gpio_desc *gpio[GPIO_MAX];
 
 	bool attached;
+	struct mutex st_mutex;			/* Protects state */
 	unsigned int state;
 	struct delayed_work poll;
 	struct delayed_work timeout;
-	struct mutex sm_mutex;
+	struct mutex sm_mutex;			/* Protects state machine */
 	unsigned char sm_mod_state;
 	unsigned char sm_dev_state;
 	unsigned short sm_state;
@@ -281,6 +282,7 @@ static int sfp_i2c_read(struct sfp *sfp,
 {
 	struct i2c_msg msgs[2];
 	u8 bus_addr = a2 ? 0x51 : 0x50;
+	size_t this_len;
 	int ret;
 
 	msgs[0].addr = bus_addr;
@@ -292,11 +294,26 @@ static int sfp_i2c_read(struct sfp *sfp,
 	msgs[1].len = len;
 	msgs[1].buf = buf;
 
-	ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs));
-	if (ret < 0)
-		return ret;
+	while (len) {
+		this_len = len;
+		if (this_len > 16)
+			this_len = 16;
 
-	return ret == ARRAY_SIZE(msgs) ? len : 0;
+		msgs[1].len = this_len;
+
+		ret = i2c_transfer(sfp->i2c, msgs, ARRAY_SIZE(msgs));
+		if (ret < 0)
+			return ret;
+
+		if (ret != ARRAY_SIZE(msgs))
+			break;
+
+		msgs[1].buf += this_len;
+		dev_addr += this_len;
+		len -= this_len;
+	}
+
+	return msgs[1].buf - (u8 *)buf;
 }
 
 static int sfp_i2c_write(struct sfp *sfp, bool a2, u8 dev_addr, void *buf,
@@ -498,7 +515,7 @@ static int sfp_hwmon_read_sensor(struct
 
 static void sfp_hwmon_to_rx_power(long *value)
 {
-	*value = DIV_ROUND_CLOSEST(*value, 100);
+	*value = DIV_ROUND_CLOSEST(*value, 10);
 }
 
 static void sfp_hwmon_calibrate(struct sfp *sfp, unsigned int slope, int offset,
@@ -1703,6 +1720,7 @@ static void sfp_check_state(struct sfp *
 {
 	unsigned int state, i, changed;
 
+	mutex_lock(&sfp->st_mutex);
 	state = sfp_get_state(sfp);
 	changed = state ^ sfp->state;
 	changed &= SFP_F_PRESENT | SFP_F_LOS | SFP_F_TX_FAULT;
@@ -1728,6 +1746,7 @@ static void sfp_check_state(struct sfp *
 		sfp_sm_event(sfp, state & SFP_F_LOS ?
 				SFP_E_LOS_HIGH : SFP_E_LOS_LOW);
 	rtnl_unlock();
+	mutex_unlock(&sfp->st_mutex);
 }
 
 static irqreturn_t sfp_irq(int irq, void *data)
@@ -1758,6 +1777,7 @@ static struct sfp *sfp_alloc(struct devi
 	sfp->dev = dev;
 
 	mutex_init(&sfp->sm_mutex);
+	mutex_init(&sfp->st_mutex);
 	INIT_DELAYED_WORK(&sfp->poll, sfp_poll);
 	INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ppp/ppp_deflate.c linux-libre-5.1.21-gnu/drivers/net/ppp/ppp_deflate.c
--- linux-libre-5.1-gnu/drivers/net/ppp/ppp_deflate.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ppp/ppp_deflate.c	2019-07-28 02:28:39.000000000 -0400
@@ -610,12 +610,20 @@ static struct compressor ppp_deflate_dra
 
 static int __init deflate_init(void)
 {
-        int answer = ppp_register_compressor(&ppp_deflate);
-        if (answer == 0)
-                printk(KERN_INFO
-		       "PPP Deflate Compression module registered\n");
-	ppp_register_compressor(&ppp_deflate_draft);
-        return answer;
+	int rc;
+
+	rc = ppp_register_compressor(&ppp_deflate);
+	if (rc)
+		return rc;
+
+	rc = ppp_register_compressor(&ppp_deflate_draft);
+	if (rc) {
+		ppp_unregister_compressor(&ppp_deflate);
+		return rc;
+	}
+
+	pr_info("PPP Deflate Compression module registered\n");
+	return 0;
 }
 
 static void __exit deflate_cleanup(void)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/ppp/ppp_mppe.c linux-libre-5.1.21-gnu/drivers/net/ppp/ppp_mppe.c
--- linux-libre-5.1-gnu/drivers/net/ppp/ppp_mppe.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/ppp/ppp_mppe.c	2019-07-28 02:28:39.000000000 -0400
@@ -63,6 +63,7 @@ MODULE_AUTHOR("Frank Cusack <fcusack@fcu
 MODULE_DESCRIPTION("Point-to-Point Protocol Microsoft Point-to-Point Encryption support");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE));
+MODULE_SOFTDEP("pre: arc4");
 MODULE_VERSION("1.0.2");
 
 static unsigned int
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/team/team.c linux-libre-5.1.21-gnu/drivers/net/team/team.c
--- linux-libre-5.1-gnu/drivers/net/team/team.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/team/team.c	2019-07-28 02:28:39.000000000 -0400
@@ -2135,12 +2135,12 @@ static void team_setup(struct net_device
 	dev->features |= NETIF_F_NETNS_LOCAL;
 
 	dev->hw_features = TEAM_VLAN_FEATURES |
-			   NETIF_F_HW_VLAN_CTAG_TX |
 			   NETIF_F_HW_VLAN_CTAG_RX |
 			   NETIF_F_HW_VLAN_CTAG_FILTER;
 
 	dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
 	dev->features |= dev->hw_features;
+	dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
 }
 
 static int team_newlink(struct net *src_net, struct net_device *dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/thunderbolt.c linux-libre-5.1.21-gnu/drivers/net/thunderbolt.c
--- linux-libre-5.1-gnu/drivers/net/thunderbolt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/thunderbolt.c	2019-07-28 02:28:39.000000000 -0400
@@ -1282,6 +1282,7 @@ static int __maybe_unused tbnet_suspend(
 		tbnet_tear_down(net, true);
 	}
 
+	tb_unregister_protocol_handler(&net->handler);
 	return 0;
 }
 
@@ -1290,6 +1291,8 @@ static int __maybe_unused tbnet_resume(s
 	struct tb_service *svc = tb_to_service(dev);
 	struct tbnet *net = tb_service_get_drvdata(svc);
 
+	tb_register_protocol_handler(&net->handler);
+
 	netif_carrier_off(net->dev);
 	if (netif_running(net->dev)) {
 		netif_device_attach(net->dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/tun.c linux-libre-5.1.21-gnu/drivers/net/tun.c
--- linux-libre-5.1-gnu/drivers/net/tun.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/tun.c	2019-07-28 02:28:39.000000000 -0400
@@ -596,13 +596,18 @@ static u16 tun_automq_select_queue(struc
 static u16 tun_ebpf_select_queue(struct tun_struct *tun, struct sk_buff *skb)
 {
 	struct tun_prog *prog;
+	u32 numqueues;
 	u16 ret = 0;
 
+	numqueues = READ_ONCE(tun->numqueues);
+	if (!numqueues)
+		return 0;
+
 	prog = rcu_dereference(tun->steering_prog);
 	if (prog)
 		ret = bpf_prog_run_clear_cb(prog->prog, skb);
 
-	return ret % tun->numqueues;
+	return ret % numqueues;
 }
 
 static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb,
@@ -700,6 +705,8 @@ static void __tun_detach(struct tun_file
 				   tun->tfiles[tun->numqueues - 1]);
 		ntfile = rtnl_dereference(tun->tfiles[index]);
 		ntfile->queue_index = index;
+		rcu_assign_pointer(tun->tfiles[tun->numqueues - 1],
+				   NULL);
 
 		--tun->numqueues;
 		if (clean) {
@@ -1017,18 +1024,8 @@ static void tun_net_uninit(struct net_de
 /* Net device open. */
 static int tun_net_open(struct net_device *dev)
 {
-	struct tun_struct *tun = netdev_priv(dev);
-	int i;
-
 	netif_tx_start_all_queues(dev);
 
-	for (i = 0; i < tun->numqueues; i++) {
-		struct tun_file *tfile;
-
-		tfile = rtnl_dereference(tun->tfiles[i]);
-		tfile->socket.sk->sk_write_space(tfile->socket.sk);
-	}
-
 	return 0;
 }
 
@@ -1082,7 +1079,7 @@ static netdev_tx_t tun_net_xmit(struct s
 	tfile = rcu_dereference(tun->tfiles[txq]);
 
 	/* Drop packet if interface is not attached */
-	if (txq >= tun->numqueues)
+	if (!tfile)
 		goto drop;
 
 	if (!rcu_dereference(tun->steering_prog))
@@ -1305,6 +1302,7 @@ static int tun_xdp_xmit(struct net_devic
 
 	rcu_read_lock();
 
+resample:
 	numqueues = READ_ONCE(tun->numqueues);
 	if (!numqueues) {
 		rcu_read_unlock();
@@ -1313,6 +1311,8 @@ static int tun_xdp_xmit(struct net_devic
 
 	tfile = rcu_dereference(tun->tfiles[smp_processor_id() %
 					    numqueues]);
+	if (unlikely(!tfile))
+		goto resample;
 
 	spin_lock(&tfile->tx_ring.producer_lock);
 	for (i = 0; i < n; i++) {
@@ -3626,6 +3626,7 @@ static int tun_device_event(struct notif
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct tun_struct *tun = netdev_priv(dev);
+	int i;
 
 	if (dev->rtnl_link_ops != &tun_link_ops)
 		return NOTIFY_DONE;
@@ -3635,6 +3636,14 @@ static int tun_device_event(struct notif
 		if (tun_queue_resize(tun))
 			return NOTIFY_BAD;
 		break;
+	case NETDEV_UP:
+		for (i = 0; i < tun->numqueues; i++) {
+			struct tun_file *tfile;
+
+			tfile = rtnl_dereference(tun->tfiles[i]);
+			tfile->socket.sk->sk_write_space(tfile->socket.sk);
+		}
+		break;
 	default:
 		break;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/usb/asix_devices.c linux-libre-5.1.21-gnu/drivers/net/usb/asix_devices.c
--- linux-libre-5.1-gnu/drivers/net/usb/asix_devices.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/usb/asix_devices.c	2019-07-28 02:28:39.000000000 -0400
@@ -238,7 +238,7 @@ static void asix_phy_reset(struct usbnet
 static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret = 0;
-	u8 buf[ETH_ALEN];
+	u8 buf[ETH_ALEN] = {0};
 	int i;
 	unsigned long gpio_bits = dev->driver_info->data;
 
@@ -689,7 +689,7 @@ static int asix_resume(struct usb_interf
 static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret, i;
-	u8 buf[ETH_ALEN], chipcode = 0;
+	u8 buf[ETH_ALEN] = {0}, chipcode = 0;
 	u32 phyid;
 	struct asix_common_private *priv;
 
@@ -1073,7 +1073,7 @@ static const struct net_device_ops ax881
 static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret;
-	u8 buf[ETH_ALEN];
+	u8 buf[ETH_ALEN] = {0};
 
 	usbnet_get_endpoints(dev,intf);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/usb/ipheth.c linux-libre-5.1.21-gnu/drivers/net/usb/ipheth.c
--- linux-libre-5.1-gnu/drivers/net/usb/ipheth.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/usb/ipheth.c	2019-07-28 02:28:39.000000000 -0400
@@ -437,17 +437,18 @@ static int ipheth_tx(struct sk_buff *skb
 			  dev);
 	dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
+	netif_stop_queue(net);
 	retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC);
 	if (retval) {
 		dev_err(&dev->intf->dev, "%s: usb_submit_urb: %d\n",
 			__func__, retval);
 		dev->net->stats.tx_errors++;
 		dev_kfree_skb_any(skb);
+		netif_wake_queue(net);
 	} else {
 		dev->net->stats.tx_packets++;
 		dev->net->stats.tx_bytes += skb->len;
 		dev_consume_skb_any(skb);
-		netif_stop_queue(net);
 	}
 
 	return NETDEV_TX_OK;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/usb/qmi_wwan.c linux-libre-5.1.21-gnu/drivers/net/usb/qmi_wwan.c
--- linux-libre-5.1-gnu/drivers/net/usb/qmi_wwan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/usb/qmi_wwan.c	2019-07-28 02:28:39.000000000 -0400
@@ -63,6 +63,7 @@ enum qmi_wwan_flags {
 
 enum qmi_wwan_quirks {
 	QMI_WWAN_QUIRK_DTR = 1 << 0,	/* needs "set DTR" request */
+	QMI_WWAN_QUIRK_QUECTEL_DYNCFG = 1 << 1,	/* check num. endpoints */
 };
 
 struct qmimux_hdr {
@@ -152,7 +153,7 @@ static bool qmimux_has_slaves(struct usb
 
 static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 {
-	unsigned int len, offset = 0;
+	unsigned int len, offset = 0, pad_len, pkt_len;
 	struct qmimux_hdr *hdr;
 	struct net_device *net;
 	struct sk_buff *skbn;
@@ -170,10 +171,16 @@ static int qmimux_rx_fixup(struct usbnet
 		if (hdr->pad & 0x80)
 			goto skip;
 
+		/* extract padding length and check for valid length info */
+		pad_len = hdr->pad & 0x3f;
+		if (len == 0 || pad_len >= len)
+			goto skip;
+		pkt_len = len - pad_len;
+
 		net = qmimux_find_dev(dev, hdr->mux_id);
 		if (!net)
 			goto skip;
-		skbn = netdev_alloc_skb(net, len);
+		skbn = netdev_alloc_skb(net, pkt_len);
 		if (!skbn)
 			return 0;
 		skbn->dev = net;
@@ -190,7 +197,7 @@ static int qmimux_rx_fixup(struct usbnet
 			goto skip;
 		}
 
-		skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, len);
+		skb_put_data(skbn, skb->data + offset + qmimux_hdr_sz, pkt_len);
 		if (netif_rx(skbn) != NET_RX_SUCCESS)
 			return 0;
 
@@ -240,13 +247,14 @@ out_free_newdev:
 	return err;
 }
 
-static void qmimux_unregister_device(struct net_device *dev)
+static void qmimux_unregister_device(struct net_device *dev,
+				     struct list_head *head)
 {
 	struct qmimux_priv *priv = netdev_priv(dev);
 	struct net_device *real_dev = priv->real_dev;
 
 	netdev_upper_dev_unlink(real_dev, dev);
-	unregister_netdevice(dev);
+	unregister_netdevice_queue(dev, head);
 
 	/* Get rid of the reference to real_dev */
 	dev_put(real_dev);
@@ -355,8 +363,8 @@ static ssize_t add_mux_store(struct devi
 	if (kstrtou8(buf, 0, &mux_id))
 		return -EINVAL;
 
-	/* mux_id [1 - 0x7f] range empirically found */
-	if (mux_id < 1 || mux_id > 0x7f)
+	/* mux_id [1 - 254] for compatibility with ip(8) and the rmnet driver */
+	if (mux_id < 1 || mux_id > 254)
 		return -EINVAL;
 
 	if (!rtnl_trylock())
@@ -417,7 +425,7 @@ static ssize_t del_mux_store(struct devi
 		ret = -EINVAL;
 		goto err;
 	}
-	qmimux_unregister_device(del_dev);
+	qmimux_unregister_device(del_dev, NULL);
 
 	if (!qmimux_has_slaves(dev))
 		info->flags &= ~QMI_WWAN_FLAG_MUX;
@@ -845,6 +853,16 @@ static const struct driver_info	qmi_wwan
 	.data           = QMI_WWAN_QUIRK_DTR,
 };
 
+static const struct driver_info	qmi_wwan_info_quirk_quectel_dyncfg = {
+	.description	= "WWAN/QMI device",
+	.flags		= FLAG_WWAN | FLAG_SEND_ZLP,
+	.bind		= qmi_wwan_bind,
+	.unbind		= qmi_wwan_unbind,
+	.manage_power	= qmi_wwan_manage_power,
+	.rx_fixup       = qmi_wwan_rx_fixup,
+	.data           = QMI_WWAN_QUIRK_DTR | QMI_WWAN_QUIRK_QUECTEL_DYNCFG,
+};
+
 #define HUAWEI_VENDOR_ID	0x12D1
 
 /* map QMI/wwan function by a fixed interface number */
@@ -865,6 +883,15 @@ static const struct driver_info	qmi_wwan
 #define QMI_GOBI_DEVICE(vend, prod) \
 	QMI_FIXED_INTF(vend, prod, 0)
 
+/* Quectel does not use fixed interface numbers on at least some of their
+ * devices. We need to check the number of endpoints to ensure that we bind to
+ * the correct interface.
+ */
+#define QMI_QUIRK_QUECTEL_DYNCFG(vend, prod) \
+	USB_DEVICE_AND_INTERFACE_INFO(vend, prod, USB_CLASS_VENDOR_SPEC, \
+				      USB_SUBCLASS_VENDOR_SPEC, 0xff), \
+	.driver_info = (unsigned long)&qmi_wwan_info_quirk_quectel_dyncfg
+
 static const struct usb_device_id products[] = {
 	/* 1. CDC ECM like devices match on the control interface */
 	{	/* Huawei E392, E398 and possibly others sharing both device id and more... */
@@ -969,20 +996,9 @@ static const struct usb_device_id produc
 		USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
 		.driver_info = (unsigned long)&qmi_wwan_info,
 	},
-	{	/* Quectel EP06/EG06/EM06 */
-		USB_DEVICE_AND_INTERFACE_INFO(0x2c7c, 0x0306,
-					      USB_CLASS_VENDOR_SPEC,
-					      USB_SUBCLASS_VENDOR_SPEC,
-					      0xff),
-		.driver_info	    = (unsigned long)&qmi_wwan_info_quirk_dtr,
-	},
-	{	/* Quectel EG12/EM12 */
-		USB_DEVICE_AND_INTERFACE_INFO(0x2c7c, 0x0512,
-					      USB_CLASS_VENDOR_SPEC,
-					      USB_SUBCLASS_VENDOR_SPEC,
-					      0xff),
-		.driver_info	    = (unsigned long)&qmi_wwan_info_quirk_dtr,
-	},
+	{QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0125)},	/* Quectel EC25, EC20 R2.0  Mini PCIe */
+	{QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0306)},	/* Quectel EP06/EG06/EM06 */
+	{QMI_QUIRK_QUECTEL_DYNCFG(0x2c7c, 0x0512)},	/* Quectel EG12/EM12 */
 
 	/* 3. Combined interface devices matching on interface number */
 	{QMI_FIXED_INTF(0x0408, 0xea42, 4)},	/* Yota / Megafon M100-1 */
@@ -1250,6 +1266,8 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x1bc7, 0x1101, 3)},	/* Telit ME910 dual modem */
 	{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},	/* Telit LE920 */
 	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)},	/* Telit LE920, LE920A4 */
+	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1260, 2)},	/* Telit LE910Cx */
+	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1261, 2)},	/* Telit LE910Cx */
 	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1900, 1)},	/* Telit LN940 series */
 	{QMI_FIXED_INTF(0x1c9e, 0x9801, 3)},	/* Telewell TW-3G HSPA+ */
 	{QMI_FIXED_INTF(0x1c9e, 0x9803, 4)},	/* Telewell TW-3G HSPA+ */
@@ -1281,7 +1299,6 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)},	/* HP lt4120 Snapdragon X5 LTE */
 	{QMI_FIXED_INTF(0x22de, 0x9061, 3)},	/* WeTelecom WPD-600N */
 	{QMI_QUIRK_SET_DTR(0x1e0e, 0x9001, 5)},	/* SIMCom 7100E, 7230E, 7600E ++ */
-	{QMI_QUIRK_SET_DTR(0x2c7c, 0x0125, 4)},	/* Quectel EC25, EC20 R2.0  Mini PCIe */
 	{QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)},	/* Quectel EC21 Mini PCIe */
 	{QMI_QUIRK_SET_DTR(0x2c7c, 0x0191, 4)},	/* Quectel EG91 */
 	{QMI_FIXED_INTF(0x2c7c, 0x0296, 4)},	/* Quectel BG96 */
@@ -1361,27 +1378,12 @@ static bool quectel_ec20_detected(struct
 	return false;
 }
 
-static bool quectel_diag_detected(struct usb_interface *intf)
-{
-	struct usb_device *dev = interface_to_usbdev(intf);
-	struct usb_interface_descriptor intf_desc = intf->cur_altsetting->desc;
-	u16 id_vendor = le16_to_cpu(dev->descriptor.idVendor);
-	u16 id_product = le16_to_cpu(dev->descriptor.idProduct);
-
-	if (id_vendor != 0x2c7c || intf_desc.bNumEndpoints != 2)
-		return false;
-
-	if (id_product == 0x0306 || id_product == 0x0512)
-		return true;
-	else
-		return false;
-}
-
 static int qmi_wwan_probe(struct usb_interface *intf,
 			  const struct usb_device_id *prod)
 {
 	struct usb_device_id *id = (struct usb_device_id *)prod;
 	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
+	const struct driver_info *info;
 
 	/* Workaround to enable dynamic IDs.  This disables usbnet
 	 * blacklisting functionality.  Which, if required, can be
@@ -1415,10 +1417,14 @@ static int qmi_wwan_probe(struct usb_int
 	 * we need to match on class/subclass/protocol. These values are
 	 * identical for the diagnostic- and QMI-interface, but bNumEndpoints is
 	 * different. Ignore the current interface if the number of endpoints
-	 * the number for the diag interface (two).
+	 * equals the number for the diag interface (two).
 	 */
-	if (quectel_diag_detected(intf))
-		return -ENODEV;
+	info = (void *)id->driver_info;
+
+	if (info->data & QMI_WWAN_QUIRK_QUECTEL_DYNCFG) {
+		if (desc->bNumEndpoints == 2)
+			return -ENODEV;
+	}
 
 	return usbnet_probe(intf, id);
 }
@@ -1429,6 +1435,7 @@ static void qmi_wwan_disconnect(struct u
 	struct qmi_wwan_state *info;
 	struct list_head *iter;
 	struct net_device *ldev;
+	LIST_HEAD(list);
 
 	/* called twice if separate control and data intf */
 	if (!dev)
@@ -1441,8 +1448,9 @@ static void qmi_wwan_disconnect(struct u
 		}
 		rcu_read_lock();
 		netdev_for_each_upper_dev_rcu(dev->net, ldev, iter)
-			qmimux_unregister_device(ldev);
+			qmimux_unregister_device(ldev, &list);
 		rcu_read_unlock();
+		unregister_netdevice_many(&list);
 		rtnl_unlock();
 		info->flags &= ~QMI_WWAN_FLAG_MUX;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/usb/usbnet.c linux-libre-5.1.21-gnu/drivers/net/usb/usbnet.c
--- linux-libre-5.1-gnu/drivers/net/usb/usbnet.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/usb/usbnet.c	2019-07-28 02:28:39.000000000 -0400
@@ -506,6 +506,7 @@ static int rx_submit (struct usbnet *dev
 
 	if (netif_running (dev->net) &&
 	    netif_device_present (dev->net) &&
+	    test_bit(EVENT_DEV_OPEN, &dev->flags) &&
 	    !test_bit (EVENT_RX_HALT, &dev->flags) &&
 	    !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) {
 		switch (retval = usb_submit_urb (urb, GFP_ATOMIC)) {
@@ -1431,6 +1432,11 @@ netdev_tx_t usbnet_start_xmit (struct sk
 		spin_unlock_irqrestore(&dev->txq.lock, flags);
 		goto drop;
 	}
+	if (netif_queue_stopped(net)) {
+		usb_autopm_put_interface_async(dev->intf);
+		spin_unlock_irqrestore(&dev->txq.lock, flags);
+		goto drop;
+	}
 
 #ifdef CONFIG_PM
 	/* if this triggers the device is still a sleep */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/vrf.c linux-libre-5.1.21-gnu/drivers/net/vrf.c
--- linux-libre-5.1-gnu/drivers/net/vrf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/vrf.c	2019-07-28 02:28:39.000000000 -0400
@@ -169,23 +169,29 @@ static int vrf_ip6_local_out(struct net
 static netdev_tx_t vrf_process_v6_outbound(struct sk_buff *skb,
 					   struct net_device *dev)
 {
-	const struct ipv6hdr *iph = ipv6_hdr(skb);
+	const struct ipv6hdr *iph;
 	struct net *net = dev_net(skb->dev);
-	struct flowi6 fl6 = {
-		/* needed to match OIF rule */
-		.flowi6_oif = dev->ifindex,
-		.flowi6_iif = LOOPBACK_IFINDEX,
-		.daddr = iph->daddr,
-		.saddr = iph->saddr,
-		.flowlabel = ip6_flowinfo(iph),
-		.flowi6_mark = skb->mark,
-		.flowi6_proto = iph->nexthdr,
-		.flowi6_flags = FLOWI_FLAG_SKIP_NH_OIF,
-	};
+	struct flowi6 fl6;
 	int ret = NET_XMIT_DROP;
 	struct dst_entry *dst;
 	struct dst_entry *dst_null = &net->ipv6.ip6_null_entry->dst;
 
+	if (!pskb_may_pull(skb, ETH_HLEN + sizeof(struct ipv6hdr)))
+		goto err;
+
+	iph = ipv6_hdr(skb);
+
+	memset(&fl6, 0, sizeof(fl6));
+	/* needed to match OIF rule */
+	fl6.flowi6_oif = dev->ifindex;
+	fl6.flowi6_iif = LOOPBACK_IFINDEX;
+	fl6.daddr = iph->daddr;
+	fl6.saddr = iph->saddr;
+	fl6.flowlabel = ip6_flowinfo(iph);
+	fl6.flowi6_mark = skb->mark;
+	fl6.flowi6_proto = iph->nexthdr;
+	fl6.flowi6_flags = FLOWI_FLAG_SKIP_NH_OIF;
+
 	dst = ip6_route_output(net, NULL, &fl6);
 	if (dst == dst_null)
 		goto err;
@@ -241,21 +247,27 @@ static int vrf_ip_local_out(struct net *
 static netdev_tx_t vrf_process_v4_outbound(struct sk_buff *skb,
 					   struct net_device *vrf_dev)
 {
-	struct iphdr *ip4h = ip_hdr(skb);
+	struct iphdr *ip4h;
 	int ret = NET_XMIT_DROP;
-	struct flowi4 fl4 = {
-		/* needed to match OIF rule */
-		.flowi4_oif = vrf_dev->ifindex,
-		.flowi4_iif = LOOPBACK_IFINDEX,
-		.flowi4_tos = RT_TOS(ip4h->tos),
-		.flowi4_flags = FLOWI_FLAG_ANYSRC | FLOWI_FLAG_SKIP_NH_OIF,
-		.flowi4_proto = ip4h->protocol,
-		.daddr = ip4h->daddr,
-		.saddr = ip4h->saddr,
-	};
+	struct flowi4 fl4;
 	struct net *net = dev_net(vrf_dev);
 	struct rtable *rt;
 
+	if (!pskb_may_pull(skb, ETH_HLEN + sizeof(struct iphdr)))
+		goto err;
+
+	ip4h = ip_hdr(skb);
+
+	memset(&fl4, 0, sizeof(fl4));
+	/* needed to match OIF rule */
+	fl4.flowi4_oif = vrf_dev->ifindex;
+	fl4.flowi4_iif = LOOPBACK_IFINDEX;
+	fl4.flowi4_tos = RT_TOS(ip4h->tos);
+	fl4.flowi4_flags = FLOWI_FLAG_ANYSRC | FLOWI_FLAG_SKIP_NH_OIF;
+	fl4.flowi4_proto = ip4h->protocol;
+	fl4.daddr = ip4h->daddr;
+	fl4.saddr = ip4h->saddr;
+
 	rt = ip_route_output_flow(net, &fl4, NULL);
 	if (IS_ERR(rt))
 		goto err;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/vxlan.c linux-libre-5.1.21-gnu/drivers/net/vxlan.c
--- linux-libre-5.1-gnu/drivers/net/vxlan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/vxlan.c	2019-07-28 02:28:39.000000000 -0400
@@ -806,6 +806,14 @@ static struct vxlan_fdb *vxlan_fdb_alloc
 	return f;
 }
 
+static void vxlan_fdb_insert(struct vxlan_dev *vxlan, const u8 *mac,
+			     __be32 src_vni, struct vxlan_fdb *f)
+{
+	++vxlan->addrcnt;
+	hlist_add_head_rcu(&f->hlist,
+			   vxlan_fdb_head(vxlan, mac, src_vni));
+}
+
 static int vxlan_fdb_create(struct vxlan_dev *vxlan,
 			    const u8 *mac, union vxlan_addr *ip,
 			    __u16 state, __be16 port, __be32 src_vni,
@@ -831,18 +839,13 @@ static int vxlan_fdb_create(struct vxlan
 		return rc;
 	}
 
-	++vxlan->addrcnt;
-	hlist_add_head_rcu(&f->hlist,
-			   vxlan_fdb_head(vxlan, mac, src_vni));
-
 	*fdb = f;
 
 	return 0;
 }
 
-static void vxlan_fdb_free(struct rcu_head *head)
+static void __vxlan_fdb_free(struct vxlan_fdb *f)
 {
-	struct vxlan_fdb *f = container_of(head, struct vxlan_fdb, rcu);
 	struct vxlan_rdst *rd, *nd;
 
 	list_for_each_entry_safe(rd, nd, &f->remotes, list) {
@@ -852,6 +855,13 @@ static void vxlan_fdb_free(struct rcu_he
 	kfree(f);
 }
 
+static void vxlan_fdb_free(struct rcu_head *head)
+{
+	struct vxlan_fdb *f = container_of(head, struct vxlan_fdb, rcu);
+
+	__vxlan_fdb_free(f);
+}
+
 static void vxlan_fdb_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f,
 			      bool do_notify, bool swdev_notify)
 {
@@ -979,6 +989,7 @@ static int vxlan_fdb_update_create(struc
 	if (rc < 0)
 		return rc;
 
+	vxlan_fdb_insert(vxlan, mac, src_vni, f);
 	rc = vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f), RTM_NEWNEIGH,
 			      swdev_notify, extack);
 	if (rc)
@@ -1765,7 +1776,7 @@ static int vxlan_err_lookup(struct sock
 	struct vxlanhdr *hdr;
 	__be32 vni;
 
-	if (skb->len < VXLAN_HLEN)
+	if (!pskb_may_pull(skb, skb_transport_offset(skb) + VXLAN_HLEN))
 		return -EINVAL;
 
 	hdr = vxlan_hdr(skb);
@@ -3573,12 +3584,17 @@ static int __vxlan_dev_create(struct net
 	if (err)
 		goto errout;
 
-	/* notify default fdb entry */
 	if (f) {
+		vxlan_fdb_insert(vxlan, all_zeros_mac,
+				 vxlan->default_dst.remote_vni, f);
+
+		/* notify default fdb entry */
 		err = vxlan_fdb_notify(vxlan, f, first_remote_rtnl(f),
 				       RTM_NEWNEIGH, true, extack);
-		if (err)
-			goto errout;
+		if (err) {
+			vxlan_fdb_destroy(vxlan, f, false, false);
+			goto unregister;
+		}
 	}
 
 	list_add(&vxlan->next, &vn->vxlan_list);
@@ -3590,7 +3606,8 @@ errout:
 	 * destroy the entry by hand here.
 	 */
 	if (f)
-		vxlan_fdb_destroy(vxlan, f, false, false);
+		__vxlan_fdb_free(f);
+unregister:
 	if (unregister)
 		unregister_netdevice(dev);
 	return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/debugfs_sta.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/debugfs_sta.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/debugfs_sta.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/debugfs_sta.c	2019-07-28 02:28:39.000000000 -0400
@@ -663,6 +663,13 @@ static ssize_t ath10k_dbg_sta_dump_tx_st
 
 	mutex_lock(&ar->conf_mutex);
 
+	if (!arsta->tx_stats) {
+		ath10k_warn(ar, "failed to get tx stats");
+		mutex_unlock(&ar->conf_mutex);
+		kfree(buf);
+		return 0;
+	}
+
 	spin_lock_bh(&ar->data_lock);
 	for (k = 0; k < ATH10K_STATS_TYPE_MAX; k++) {
 		for (j = 0; j < ATH10K_COUNTER_TYPE_MAX; j++) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/htt_rx.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/htt_rx.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/htt_rx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/htt_rx.c	2019-07-28 02:28:39.000000000 -0400
@@ -2277,7 +2277,9 @@ static void ath10k_htt_rx_tx_compl_ind(s
 		 *  Note that with only one concurrent reader and one concurrent
 		 *  writer, you don't need extra locking to use these macro.
 		 */
-		if (!kfifo_put(&htt->txdone_fifo, tx_done)) {
+		if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) {
+			ath10k_txrx_tx_unref(htt, &tx_done);
+		} else if (!kfifo_put(&htt->txdone_fifo, tx_done)) {
 			ath10k_warn(ar, "txdone fifo overrun, msdu_id %d status %d\n",
 				    tx_done.msdu_id, tx_done.status);
 			ath10k_txrx_tx_unref(htt, &tx_done);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/hw.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/hw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/hw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/hw.c	2019-07-28 02:28:39.000000000 -0400
@@ -158,7 +158,7 @@ const struct ath10k_hw_values qca6174_va
 };
 
 const struct ath10k_hw_values qca99x0_values = {
-	.rtc_state_val_on		= 5,
+	.rtc_state_val_on		= 7,
 	.ce_count			= 12,
 	.msi_assign_ce_max		= 12,
 	.num_target_ce_config_wlan	= 10,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/mac.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/mac.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/mac.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/mac.c	2019-07-28 02:28:39.000000000 -0400
@@ -1630,6 +1630,10 @@ static int ath10k_mac_setup_prb_tmpl(str
 	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
 		return 0;
 
+	 /* For mesh, probe response and beacon share the same template */
+	if (ieee80211_vif_is_mesh(vif))
+		return 0;
+
 	prb = ieee80211_proberesp_get(hw, vif);
 	if (!prb) {
 		ath10k_warn(ar, "failed to get probe resp template from mac80211\n");
@@ -5588,8 +5592,8 @@ static void ath10k_bss_info_changed(stru
 	struct cfg80211_chan_def def;
 	u32 vdev_param, pdev_param, slottime, preamble;
 	u16 bitrate, hw_value;
-	u8 rate, basic_rate_idx;
-	int rateidx, ret = 0, hw_rate_code;
+	u8 rate, basic_rate_idx, rateidx;
+	int ret = 0, hw_rate_code, mcast_rate;
 	enum nl80211_band band;
 	const struct ieee80211_supported_band *sband;
 
@@ -5776,7 +5780,11 @@ static void ath10k_bss_info_changed(stru
 	if (changed & BSS_CHANGED_MCAST_RATE &&
 	    !ath10k_mac_vif_chan(arvif->vif, &def)) {
 		band = def.chan->band;
-		rateidx = vif->bss_conf.mcast_rate[band] - 1;
+		mcast_rate = vif->bss_conf.mcast_rate[band];
+		if (mcast_rate > 0)
+			rateidx = mcast_rate - 1;
+		else
+			rateidx = ffs(vif->bss_conf.basic_rates) - 1;
 
 		if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
 			rateidx += ATH10K_MAC_FIRST_OFDM_RATE_IDX;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/pci.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/pci.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/pci.c	2019-05-05 21:37:33.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/pci.c	2019-07-28 13:40:27.000000000 -0400
@@ -2059,6 +2059,11 @@ static void ath10k_pci_hif_stop(struct a
 
 	ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif stop\n");
 
+	ath10k_pci_irq_disable(ar);
+	ath10k_pci_irq_sync(ar);
+	napi_synchronize(&ar->napi);
+	napi_disable(&ar->napi);
+
 	/* Most likely the device has HTT Rx ring configured. The only way to
 	 * prevent the device from accessing (and possible corrupting) host
 	 * memory is to reset the chip now.
@@ -2072,10 +2077,6 @@ static void ath10k_pci_hif_stop(struct a
 	 */
 	ath10k_pci_safe_chip_reset(ar);
 
-	ath10k_pci_irq_disable(ar);
-	ath10k_pci_irq_sync(ar);
-	napi_synchronize(&ar->napi);
-	napi_disable(&ar->napi);
 	ath10k_pci_flush(ar);
 
 	spin_lock_irqsave(&ar_pci->ps_lock, flags);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/qmi.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/qmi.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/qmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/qmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1002,6 +1002,7 @@ int ath10k_qmi_deinit(struct ath10k *ar)
 	qmi_handle_release(&qmi->qmi_hdl);
 	cancel_work_sync(&qmi->event_work);
 	destroy_workqueue(qmi->event_wq);
+	kfree(qmi);
 	ar_snoc->qmi = NULL;
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/sdio.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/sdio.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/sdio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/sdio.c	2019-07-28 02:28:39.000000000 -0400
@@ -602,6 +602,10 @@ static int ath10k_sdio_mbox_rx_alloc(str
 						    full_len,
 						    last_in_bundle,
 						    last_in_bundle);
+		if (ret) {
+			ath10k_warn(ar, "alloc_rx_pkt error %d\n", ret);
+			goto err;
+		}
 	}
 
 	ar_sdio->n_rx_pkts = i;
@@ -2077,6 +2081,9 @@ static void ath10k_sdio_remove(struct sd
 	cancel_work_sync(&ar_sdio->wr_async_work);
 	ath10k_core_unregister(ar);
 	ath10k_core_destroy(ar);
+
+	flush_workqueue(ar_sdio->workqueue);
+	destroy_workqueue(ar_sdio->workqueue);
 }
 
 static const struct sdio_device_id ath10k_sdio_devices[] = {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/txrx.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/txrx.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/txrx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/txrx.c	2019-07-28 02:28:39.000000000 -0400
@@ -150,6 +150,9 @@ struct ath10k_peer *ath10k_peer_find_by_
 {
 	struct ath10k_peer *peer;
 
+	if (peer_id >= BITS_PER_TYPE(peer->peer_ids))
+		return NULL;
+
 	lockdep_assert_held(&ar->data_lock);
 
 	list_for_each_entry(peer, &ar->peers, list)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/wmi.h linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/wmi.h
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/wmi.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/wmi.h	2019-07-28 02:28:39.000000000 -0400
@@ -4535,9 +4535,10 @@ enum wmi_10_4_stats_id {
 };
 
 enum wmi_tlv_stats_id {
-	WMI_TLV_STAT_PDEV	= BIT(0),
-	WMI_TLV_STAT_VDEV	= BIT(1),
-	WMI_TLV_STAT_PEER	= BIT(2),
+	WMI_TLV_STAT_PEER	= BIT(0),
+	WMI_TLV_STAT_AP		= BIT(1),
+	WMI_TLV_STAT_PDEV	= BIT(2),
+	WMI_TLV_STAT_VDEV	= BIT(3),
 	WMI_TLV_STAT_PEER_EXTD  = BIT(10),
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/wmi-tlv.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/wmi-tlv.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath10k/wmi-tlv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath10k/wmi-tlv.c	2019-07-28 02:28:39.000000000 -0400
@@ -2840,8 +2840,10 @@ ath10k_wmi_tlv_op_gen_mgmt_tx_send(struc
 	if ((ieee80211_is_action(hdr->frame_control) ||
 	     ieee80211_is_deauth(hdr->frame_control) ||
 	     ieee80211_is_disassoc(hdr->frame_control)) &&
-	     ieee80211_has_protected(hdr->frame_control))
+	     ieee80211_has_protected(hdr->frame_control)) {
+		skb_put(msdu, IEEE80211_CCMP_MIC_LEN);
 		buf_len += IEEE80211_CCMP_MIC_LEN;
+	}
 
 	buf_len = min_t(u32, buf_len, WMI_TLV_MGMT_TX_FRAME_MAX_LEN);
 	buf_len = round_up(buf_len, 4);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath6kl/wmi.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath6kl/wmi.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath6kl/wmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath6kl/wmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1176,6 +1176,10 @@ static int ath6kl_wmi_pstream_timeout_ev
 		return -EINVAL;
 
 	ev = (struct wmi_pstream_timeout_event *) datap;
+	if (ev->traffic_class >= WMM_NUM_AC) {
+		ath6kl_err("invalid traffic class: %d\n", ev->traffic_class);
+		return -EINVAL;
+	}
 
 	/*
 	 * When the pstream (fat pipe == AC) timesout, it means there were
@@ -1517,6 +1521,10 @@ static int ath6kl_wmi_cac_event_rx(struc
 		return -EINVAL;
 
 	reply = (struct wmi_cac_event *) datap;
+	if (reply->ac >= WMM_NUM_AC) {
+		ath6kl_err("invalid AC: %d\n", reply->ac);
+		return -EINVAL;
+	}
 
 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
@@ -2633,7 +2641,7 @@ int ath6kl_wmi_delete_pstream_cmd(struct
 	u16 active_tsids = 0;
 	int ret;
 
-	if (traffic_class > 3) {
+	if (traffic_class >= WMM_NUM_AC) {
 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
 		return -EINVAL;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath9k/hw.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath9k/hw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath9k/hw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath9k/hw.c	2019-07-28 02:28:39.000000000 -0400
@@ -252,8 +252,9 @@ void ath9k_hw_get_channel_centers(struct
 /* Chip Revisions */
 /******************/
 
-static void ath9k_hw_read_revisions(struct ath_hw *ah)
+static bool ath9k_hw_read_revisions(struct ath_hw *ah)
 {
+	u32 srev;
 	u32 val;
 
 	if (ah->get_mac_revision)
@@ -269,25 +270,33 @@ static void ath9k_hw_read_revisions(stru
 			val = REG_READ(ah, AR_SREV);
 			ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
 		}
-		return;
+		return true;
 	case AR9300_DEVID_AR9340:
 		ah->hw_version.macVersion = AR_SREV_VERSION_9340;
-		return;
+		return true;
 	case AR9300_DEVID_QCA955X:
 		ah->hw_version.macVersion = AR_SREV_VERSION_9550;
-		return;
+		return true;
 	case AR9300_DEVID_AR953X:
 		ah->hw_version.macVersion = AR_SREV_VERSION_9531;
-		return;
+		return true;
 	case AR9300_DEVID_QCA956X:
 		ah->hw_version.macVersion = AR_SREV_VERSION_9561;
-		return;
+		return true;
 	}
 
-	val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
+	srev = REG_READ(ah, AR_SREV);
+
+	if (srev == -EIO) {
+		ath_err(ath9k_hw_common(ah),
+			"Failed to read SREV register");
+		return false;
+	}
+
+	val = srev & AR_SREV_ID;
 
 	if (val == 0xFF) {
-		val = REG_READ(ah, AR_SREV);
+		val = srev;
 		ah->hw_version.macVersion =
 			(val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
 		ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
@@ -306,6 +315,8 @@ static void ath9k_hw_read_revisions(stru
 		if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
 			ah->is_pciexpress = true;
 	}
+
+	return true;
 }
 
 /************************************/
@@ -559,7 +570,10 @@ static int __ath9k_hw_init(struct ath_hw
 	struct ath_common *common = ath9k_hw_common(ah);
 	int r = 0;
 
-	ath9k_hw_read_revisions(ah);
+	if (!ath9k_hw_read_revisions(ah)) {
+		ath_err(common, "Could not read hardware revisions");
+		return -EOPNOTSUPP;
+	}
 
 	switch (ah->hw_version.macVersion) {
 	case AR_SREV_VERSION_5416_PCI:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath9k/recv.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath9k/recv.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath9k/recv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath9k/recv.c	2019-07-28 02:28:39.000000000 -0400
@@ -815,6 +815,7 @@ static int ath9k_rx_skb_preprocess(struc
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ieee80211_hdr *hdr;
 	bool discard_current = sc->rx.discard_next;
+	bool is_phyerr;
 
 	/*
 	 * Discard corrupt descriptors which are marked in
@@ -827,8 +828,11 @@ static int ath9k_rx_skb_preprocess(struc
 
 	/*
 	 * Discard zero-length packets and packets smaller than an ACK
+	 * which are not PHY_ERROR (short radar pulses have a length of 3)
 	 */
-	if (rx_stats->rs_datalen < 10) {
+	is_phyerr = rx_stats->rs_status & ATH9K_RXERR_PHY;
+	if (!rx_stats->rs_datalen ||
+	    (rx_stats->rs_datalen < 10 && !is_phyerr)) {
 		RX_STAT_INC(sc, rx_len_err);
 		goto corrupt;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/ath9k/xmit.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath9k/xmit.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/ath9k/xmit.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/ath9k/xmit.c	2019-07-28 02:28:39.000000000 -0400
@@ -668,7 +668,8 @@ static bool bf_is_ampdu_not_probing(stru
 static void ath_tx_count_airtime(struct ath_softc *sc,
 				 struct ieee80211_sta *sta,
 				 struct ath_buf *bf,
-				 struct ath_tx_status *ts)
+				 struct ath_tx_status *ts,
+				 u8 tid)
 {
 	u32 airtime = 0;
 	int i;
@@ -679,7 +680,7 @@ static void ath_tx_count_airtime(struct
 		airtime += rate_dur * bf->rates[i].count;
 	}
 
-	ieee80211_sta_register_airtime(sta, ts->tid, airtime, 0);
+	ieee80211_sta_register_airtime(sta, tid, airtime, 0);
 }
 
 static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
@@ -709,7 +710,7 @@ static void ath_tx_process_buffer(struct
 	if (sta) {
 		struct ath_node *an = (struct ath_node *)sta->drv_priv;
 		tid = ath_get_skb_tid(sc, an, bf->bf_mpdu);
-		ath_tx_count_airtime(sc, sta, bf, ts);
+		ath_tx_count_airtime(sc, sta, bf, ts, tid->tidno);
 		if (ts->ts_status & (ATH9K_TXERR_FILT | ATH9K_TXERR_XRETRY))
 			tid->clear_ps_filter = true;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/carl9170/usb.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/carl9170/usb.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/carl9170/usb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/carl9170/usb.c	2019-07-28 02:28:39.000000000 -0400
@@ -128,6 +128,8 @@ static const struct usb_device_id carl91
 };
 MODULE_DEVICE_TABLE(usb, carl9170_usb_ids);
 
+static struct usb_driver carl9170_driver;
+
 static void carl9170_usb_submit_data_urb(struct ar9170 *ar)
 {
 	struct urb *urb;
@@ -966,32 +968,28 @@ err_out:
 
 static void carl9170_usb_firmware_failed(struct ar9170 *ar)
 {
-	struct device *parent = ar->udev->dev.parent;
-	struct usb_device *udev;
-
-	/*
-	 * Store a copy of the usb_device pointer locally.
-	 * This is because device_release_driver initiates
-	 * carl9170_usb_disconnect, which in turn frees our
-	 * driver context (ar).
+	/* Store a copies of the usb_interface and usb_device pointer locally.
+	 * This is because release_driver initiates carl9170_usb_disconnect,
+	 * which in turn frees our driver context (ar).
 	 */
-	udev = ar->udev;
+	struct usb_interface *intf = ar->intf;
+	struct usb_device *udev = ar->udev;
 
 	complete(&ar->fw_load_wait);
+	/* at this point 'ar' could be already freed. Don't use it anymore */
+	ar = NULL;
 
 	/* unbind anything failed */
-	if (parent)
-		device_lock(parent);
-
-	device_release_driver(&udev->dev);
-	if (parent)
-		device_unlock(parent);
+	usb_lock_device(udev);
+	usb_driver_release_interface(&carl9170_driver, intf);
+	usb_unlock_device(udev);
 
-	usb_put_dev(udev);
+	usb_put_intf(intf);
 }
 
 static void carl9170_usb_firmware_finish(struct ar9170 *ar)
 {
+	struct usb_interface *intf = ar->intf;
 	int err;
 
 	err = carl9170_parse_firmware(ar);
@@ -1009,7 +1007,7 @@ static void carl9170_usb_firmware_finish
 		goto err_unrx;
 
 	complete(&ar->fw_load_wait);
-	usb_put_dev(ar->udev);
+	usb_put_intf(intf);
 	return;
 
 err_unrx:
@@ -1052,7 +1050,6 @@ static int carl9170_usb_probe(struct usb
 		return PTR_ERR(ar);
 
 	udev = interface_to_usbdev(intf);
-	usb_get_dev(udev);
 	ar->udev = udev;
 	ar->intf = intf;
 	ar->features = id->driver_info;
@@ -1094,15 +1091,14 @@ static int carl9170_usb_probe(struct usb
 	atomic_set(&ar->rx_anch_urbs, 0);
 	atomic_set(&ar->rx_pool_urbs, 0);
 
-	usb_get_dev(ar->udev);
+	usb_get_intf(intf);
 
 	carl9170_set_state(ar, CARL9170_STOPPED);
 
 	err = request_firmware_nowait(THIS_MODULE, 1, CARL9170FW_NAME,
 		&ar->udev->dev, GFP_KERNEL, ar, carl9170_usb_firmware_step2);
 	if (err) {
-		usb_put_dev(udev);
-		usb_put_dev(udev);
+		usb_put_intf(intf);
 		carl9170_free(ar);
 	}
 	return err;
@@ -1131,7 +1127,6 @@ static void carl9170_usb_disconnect(stru
 
 	carl9170_release_firmware(ar);
 	carl9170_free(ar);
-	usb_put_dev(udev);
 }
 
 #ifdef CONFIG_PM
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/dfs_pattern_detector.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/dfs_pattern_detector.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/dfs_pattern_detector.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/dfs_pattern_detector.c	2019-07-28 02:28:39.000000000 -0400
@@ -111,7 +111,7 @@ static const struct radar_detector_specs
 	JP_PATTERN(0, 0, 1, 1428, 1428, 1, 18, 29, false),
 	JP_PATTERN(1, 2, 3, 3846, 3846, 1, 18, 29, false),
 	JP_PATTERN(2, 0, 1, 1388, 1388, 1, 18, 50, false),
-	JP_PATTERN(3, 1, 2, 4000, 4000, 1, 18, 50, false),
+	JP_PATTERN(3, 0, 4, 4000, 4000, 1, 18, 50, false),
 	JP_PATTERN(4, 0, 5, 150, 230, 1, 23, 50, false),
 	JP_PATTERN(5, 6, 10, 200, 500, 1, 16, 50, false),
 	JP_PATTERN(6, 11, 20, 200, 500, 1, 12, 50, false),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/wil6210/cfg80211.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/wil6210/cfg80211.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/wil6210/cfg80211.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/wil6210/cfg80211.c	2019-07-28 02:28:39.000000000 -0400
@@ -1274,7 +1274,12 @@ int wil_cfg80211_mgmt_tx(struct wiphy *w
 			     params->wait);
 
 out:
+	/* when the sent packet was not acked by receiver(ACK=0), rc will
+	 * be -EAGAIN. In this case this function needs to return success,
+	 * the ACK=0 will be reflected in tx_status.
+	 */
 	tx_status = (rc == 0);
+	rc = (rc == -EAGAIN) ? 0 : rc;
 	cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
 				tx_status, GFP_KERNEL);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/wil6210/interrupt.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/wil6210/interrupt.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/wil6210/interrupt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/wil6210/interrupt.c	2019-07-28 02:28:39.000000000 -0400
@@ -296,21 +296,24 @@ void wil_configure_interrupt_moderation(
 static irqreturn_t wil6210_irq_rx(int irq, void *cookie)
 {
 	struct wil6210_priv *wil = cookie;
-	u32 isr = wil_ioread32_and_clear(wil->csr +
-					 HOSTADDR(RGF_DMA_EP_RX_ICR) +
-					 offsetof(struct RGF_ICR, ICR));
+	u32 isr;
 	bool need_unmask = true;
 
+	wil6210_mask_irq_rx(wil);
+
+	isr = wil_ioread32_and_clear(wil->csr +
+				     HOSTADDR(RGF_DMA_EP_RX_ICR) +
+				     offsetof(struct RGF_ICR, ICR));
+
 	trace_wil6210_irq_rx(isr);
 	wil_dbg_irq(wil, "ISR RX 0x%08x\n", isr);
 
 	if (unlikely(!isr)) {
 		wil_err_ratelimited(wil, "spurious IRQ: RX\n");
+		wil6210_unmask_irq_rx(wil);
 		return IRQ_NONE;
 	}
 
-	wil6210_mask_irq_rx(wil);
-
 	/* RX_DONE and RX_HTRSH interrupts are the same if interrupt
 	 * moderation is not used. Interrupt moderation may cause RX
 	 * buffer overflow while RX_DONE is delayed. The required
@@ -355,21 +358,24 @@ static irqreturn_t wil6210_irq_rx(int ir
 static irqreturn_t wil6210_irq_rx_edma(int irq, void *cookie)
 {
 	struct wil6210_priv *wil = cookie;
-	u32 isr = wil_ioread32_and_clear(wil->csr +
-					 HOSTADDR(RGF_INT_GEN_RX_ICR) +
-					 offsetof(struct RGF_ICR, ICR));
+	u32 isr;
 	bool need_unmask = true;
 
+	wil6210_mask_irq_rx_edma(wil);
+
+	isr = wil_ioread32_and_clear(wil->csr +
+				     HOSTADDR(RGF_INT_GEN_RX_ICR) +
+				     offsetof(struct RGF_ICR, ICR));
+
 	trace_wil6210_irq_rx(isr);
 	wil_dbg_irq(wil, "ISR RX 0x%08x\n", isr);
 
 	if (unlikely(!isr)) {
 		wil_err(wil, "spurious IRQ: RX\n");
+		wil6210_unmask_irq_rx_edma(wil);
 		return IRQ_NONE;
 	}
 
-	wil6210_mask_irq_rx_edma(wil);
-
 	if (likely(isr & BIT_RX_STATUS_IRQ)) {
 		wil_dbg_irq(wil, "RX status ring\n");
 		isr &= ~BIT_RX_STATUS_IRQ;
@@ -403,21 +409,24 @@ static irqreturn_t wil6210_irq_rx_edma(i
 static irqreturn_t wil6210_irq_tx_edma(int irq, void *cookie)
 {
 	struct wil6210_priv *wil = cookie;
-	u32 isr = wil_ioread32_and_clear(wil->csr +
-					 HOSTADDR(RGF_INT_GEN_TX_ICR) +
-					 offsetof(struct RGF_ICR, ICR));
+	u32 isr;
 	bool need_unmask = true;
 
+	wil6210_mask_irq_tx_edma(wil);
+
+	isr = wil_ioread32_and_clear(wil->csr +
+				     HOSTADDR(RGF_INT_GEN_TX_ICR) +
+				     offsetof(struct RGF_ICR, ICR));
+
 	trace_wil6210_irq_tx(isr);
 	wil_dbg_irq(wil, "ISR TX 0x%08x\n", isr);
 
 	if (unlikely(!isr)) {
 		wil_err(wil, "spurious IRQ: TX\n");
+		wil6210_unmask_irq_tx_edma(wil);
 		return IRQ_NONE;
 	}
 
-	wil6210_mask_irq_tx_edma(wil);
-
 	if (likely(isr & BIT_TX_STATUS_IRQ)) {
 		wil_dbg_irq(wil, "TX status ring\n");
 		isr &= ~BIT_TX_STATUS_IRQ;
@@ -446,21 +455,24 @@ static irqreturn_t wil6210_irq_tx_edma(i
 static irqreturn_t wil6210_irq_tx(int irq, void *cookie)
 {
 	struct wil6210_priv *wil = cookie;
-	u32 isr = wil_ioread32_and_clear(wil->csr +
-					 HOSTADDR(RGF_DMA_EP_TX_ICR) +
-					 offsetof(struct RGF_ICR, ICR));
+	u32 isr;
 	bool need_unmask = true;
 
+	wil6210_mask_irq_tx(wil);
+
+	isr = wil_ioread32_and_clear(wil->csr +
+				     HOSTADDR(RGF_DMA_EP_TX_ICR) +
+				     offsetof(struct RGF_ICR, ICR));
+
 	trace_wil6210_irq_tx(isr);
 	wil_dbg_irq(wil, "ISR TX 0x%08x\n", isr);
 
 	if (unlikely(!isr)) {
 		wil_err_ratelimited(wil, "spurious IRQ: TX\n");
+		wil6210_unmask_irq_tx(wil);
 		return IRQ_NONE;
 	}
 
-	wil6210_mask_irq_tx(wil);
-
 	if (likely(isr & BIT_DMA_EP_TX_ICR_TX_DONE)) {
 		wil_dbg_irq(wil, "TX done\n");
 		isr &= ~BIT_DMA_EP_TX_ICR_TX_DONE;
@@ -532,20 +544,23 @@ static bool wil_validate_mbox_regs(struc
 static irqreturn_t wil6210_irq_misc(int irq, void *cookie)
 {
 	struct wil6210_priv *wil = cookie;
-	u32 isr = wil_ioread32_and_clear(wil->csr +
-					 HOSTADDR(RGF_DMA_EP_MISC_ICR) +
-					 offsetof(struct RGF_ICR, ICR));
+	u32 isr;
+
+	wil6210_mask_irq_misc(wil, false);
+
+	isr = wil_ioread32_and_clear(wil->csr +
+				     HOSTADDR(RGF_DMA_EP_MISC_ICR) +
+				     offsetof(struct RGF_ICR, ICR));
 
 	trace_wil6210_irq_misc(isr);
 	wil_dbg_irq(wil, "ISR MISC 0x%08x\n", isr);
 
 	if (!isr) {
 		wil_err(wil, "spurious IRQ: MISC\n");
+		wil6210_unmask_irq_misc(wil, false);
 		return IRQ_NONE;
 	}
 
-	wil6210_mask_irq_misc(wil, false);
-
 	if (isr & ISR_MISC_FW_ERROR) {
 		u32 fw_assert_code = wil_r(wil, wil->rgf_fw_assert_code_addr);
 		u32 ucode_assert_code =
@@ -580,7 +595,7 @@ static irqreturn_t wil6210_irq_misc(int
 			/* no need to handle HALP ICRs until next vote */
 			wil->halp.handle_icr = false;
 			wil_dbg_irq(wil, "irq_misc: HALP IRQ invoked\n");
-			wil6210_mask_halp(wil);
+			wil6210_mask_irq_misc(wil, true);
 			complete(&wil->halp.comp);
 		}
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/wil6210/txrx.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/wil6210/txrx.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/wil6210/txrx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/wil6210/txrx.c	2019-07-28 02:28:39.000000000 -0400
@@ -750,6 +750,7 @@ void wil_netif_rx_any(struct sk_buff *sk
 		[GRO_HELD]		= "GRO_HELD",
 		[GRO_NORMAL]		= "GRO_NORMAL",
 		[GRO_DROP]		= "GRO_DROP",
+		[GRO_CONSUMED]		= "GRO_CONSUMED",
 	};
 
 	wil->txrx_ops.get_netif_rx_params(skb, &cid, &security);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ath/wil6210/wmi.c linux-libre-5.1.21-gnu/drivers/net/wireless/ath/wil6210/wmi.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ath/wil6210/wmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ath/wil6210/wmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -3211,7 +3211,18 @@ static void wmi_event_handle(struct wil6
 		/* check if someone waits for this event */
 		if (wil->reply_id && wil->reply_id == id &&
 		    wil->reply_mid == mid) {
-			WARN_ON(wil->reply_buf);
+			if (wil->reply_buf) {
+				/* event received while wmi_call is waiting
+				 * with a buffer. Such event should be handled
+				 * in wmi_recv_cmd function. Handling the event
+				 * here means a previous wmi_call was timeout.
+				 * Drop the event and do not handle it.
+				 */
+				wil_err(wil,
+					"Old event (%d, %s) while wmi_call is waiting. Drop it and Continue waiting\n",
+					id, eventid2name(id));
+				return;
+			}
 
 			wmi_evt_call_handler(vif, id, evt_data,
 					     len - sizeof(*wmi));
@@ -3502,8 +3513,9 @@ int wmi_mgmt_tx(struct wil6210_vif *vif,
 	rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, vif->mid, cmd, total,
 		      WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
 	if (!rc && evt.evt.status != WMI_FW_STATUS_SUCCESS) {
-		wil_err(wil, "mgmt_tx failed with status %d\n", evt.evt.status);
-		rc = -EINVAL;
+		wil_dbg_wmi(wil, "mgmt_tx failed with status %d\n",
+			    evt.evt.status);
+		rc = -EAGAIN;
 	}
 
 	kfree(cmd);
@@ -3555,9 +3567,9 @@ int wmi_mgmt_tx_ext(struct wil6210_vif *
 	rc = wmi_call(wil, WMI_SW_TX_REQ_EXT_CMDID, vif->mid, cmd, total,
 		      WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
 	if (!rc && evt.evt.status != WMI_FW_STATUS_SUCCESS) {
-		wil_err(wil, "mgmt_tx_ext failed with status %d\n",
-			evt.evt.status);
-		rc = -EINVAL;
+		wil_dbg_wmi(wil, "mgmt_tx_ext failed with status %d\n",
+			    evt.evt.status);
+		rc = -EAGAIN;
 	}
 
 	kfree(cmd);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/atmel/at76c50x-usb.c linux-libre-5.1.21-gnu/drivers/net/wireless/atmel/at76c50x-usb.c
--- linux-libre-5.1-gnu/drivers/net/wireless/atmel/at76c50x-usb.c	2019-05-05 21:33:54.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/atmel/at76c50x-usb.c	2019-07-28 13:36:19.000000000 -0400
@@ -2578,8 +2578,8 @@ static int __init at76_mod_init(void)
 	if (result < 0)
 		printk(KERN_ERR DRIVER_NAME
 		       ": usb_register failed (status %d)\n", result);
-
-	led_trigger_register_simple("at76_usb-tx", &ledtrig_tx);
+	else
+		led_trigger_register_simple("at76_usb-tx", &ledtrig_tx);
 	return result;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/b43/phy_lp.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/b43/phy_lp.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/b43/phy_lp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/b43/phy_lp.c	2019-07-28 02:28:39.000000000 -0400
@@ -1835,7 +1835,7 @@ static void lpphy_papd_cal(struct b43_wl
 static void lpphy_papd_cal_txpwr(struct b43_wldev *dev)
 {
 	struct b43_phy_lp *lpphy = dev->phy.lp;
-	struct lpphy_tx_gains gains, oldgains;
+	struct lpphy_tx_gains oldgains;
 	int old_txpctl, old_afe_ovr, old_rf, old_bbmult;
 
 	lpphy_read_tx_pctl_mode_from_hardware(dev);
@@ -1849,9 +1849,9 @@ static void lpphy_papd_cal_txpwr(struct
 	lpphy_set_tx_power_control(dev, B43_LPPHY_TXPCTL_OFF);
 
 	if (dev->dev->chip_id == 0x4325 && dev->dev->chip_rev == 0)
-		lpphy_papd_cal(dev, gains, 0, 1, 30);
+		lpphy_papd_cal(dev, oldgains, 0, 1, 30);
 	else
-		lpphy_papd_cal(dev, gains, 0, 1, 65);
+		lpphy_papd_cal(dev, oldgains, 0, 1, 65);
 
 	if (old_afe_ovr)
 		lpphy_set_tx_gains(dev, oldgains);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c	2019-07-28 02:28:39.000000000 -0400
@@ -490,11 +490,18 @@ fail:
 	return -ENOMEM;
 }
 
-void brcmf_proto_bcdc_detach(struct brcmf_pub *drvr)
+void brcmf_proto_bcdc_detach_pre_delif(struct brcmf_pub *drvr)
+{
+	struct brcmf_bcdc *bcdc = drvr->proto->pd;
+
+	brcmf_fws_detach_pre_delif(bcdc->fws);
+}
+
+void brcmf_proto_bcdc_detach_post_delif(struct brcmf_pub *drvr)
 {
 	struct brcmf_bcdc *bcdc = drvr->proto->pd;
 
 	drvr->proto->pd = NULL;
-	brcmf_fws_detach(bcdc->fws);
+	brcmf_fws_detach_post_delif(bcdc->fws);
 	kfree(bcdc);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.h linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.h
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.h	2019-07-28 02:28:39.000000000 -0400
@@ -18,14 +18,16 @@
 
 #ifdef CONFIG_BRCMFMAC_PROTO_BCDC
 int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr);
-void brcmf_proto_bcdc_detach(struct brcmf_pub *drvr);
+void brcmf_proto_bcdc_detach_pre_delif(struct brcmf_pub *drvr);
+void brcmf_proto_bcdc_detach_post_delif(struct brcmf_pub *drvr);
 void brcmf_proto_bcdc_txflowblock(struct device *dev, bool state);
 void brcmf_proto_bcdc_txcomplete(struct device *dev, struct sk_buff *txp,
 				 bool success);
 struct brcmf_fws_info *drvr_to_fws(struct brcmf_pub *drvr);
 #else
 static inline int brcmf_proto_bcdc_attach(struct brcmf_pub *drvr) { return 0; }
-static inline void brcmf_proto_bcdc_detach(struct brcmf_pub *drvr) {}
+static void brcmf_proto_bcdc_detach_pre_delif(struct brcmf_pub *drvr) {};
+static inline void brcmf_proto_bcdc_detach_post_delif(struct brcmf_pub *drvr) {}
 #endif
 
 #endif /* BRCMFMAC_BCDC_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c	2019-07-28 02:28:39.000000000 -0400
@@ -5464,6 +5464,8 @@ static s32 brcmf_get_assoc_ies(struct br
 		conn_info->req_ie =
 		    kmemdup(cfg->extra_buf, conn_info->req_ie_len,
 			    GFP_KERNEL);
+		if (!conn_info->req_ie)
+			conn_info->req_ie_len = 0;
 	} else {
 		conn_info->req_ie_len = 0;
 		conn_info->req_ie = NULL;
@@ -5480,6 +5482,8 @@ static s32 brcmf_get_assoc_ies(struct br
 		conn_info->resp_ie =
 		    kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
 			    GFP_KERNEL);
+		if (!conn_info->resp_ie)
+			conn_info->resp_ie_len = 0;
 	} else {
 		conn_info->resp_ie_len = 0;
 		conn_info->resp_ie = NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -841,17 +841,17 @@ static void brcmf_del_if(struct brcmf_pu
 			 bool rtnl_locked)
 {
 	struct brcmf_if *ifp;
+	int ifidx;
 
 	ifp = drvr->iflist[bsscfgidx];
-	drvr->iflist[bsscfgidx] = NULL;
 	if (!ifp) {
 		bphy_err(drvr, "Null interface, bsscfgidx=%d\n", bsscfgidx);
 		return;
 	}
 	brcmf_dbg(TRACE, "Enter, bsscfgidx=%d, ifidx=%d\n", bsscfgidx,
 		  ifp->ifidx);
-	if (drvr->if2bss[ifp->ifidx] == bsscfgidx)
-		drvr->if2bss[ifp->ifidx] = BRCMF_BSSIDX_INVALID;
+	ifidx = ifp->ifidx;
+
 	if (ifp->ndev) {
 		if (bsscfgidx == 0) {
 			if (ifp->ndev->netdev_ops == &brcmf_netdev_ops_pri) {
@@ -879,6 +879,10 @@ static void brcmf_del_if(struct brcmf_pu
 		brcmf_p2p_ifp_removed(ifp, rtnl_locked);
 		kfree(ifp);
 	}
+
+	drvr->iflist[bsscfgidx] = NULL;
+	if (drvr->if2bss[ifidx] == bsscfgidx)
+		drvr->if2bss[ifidx] = BRCMF_BSSIDX_INVALID;
 }
 
 void brcmf_remove_interface(struct brcmf_if *ifp, bool rtnl_locked)
@@ -1299,6 +1303,8 @@ void brcmf_detach(struct device *dev)
 
 	brcmf_bus_change_state(bus_if, BRCMF_BUS_DOWN);
 
+	brcmf_proto_detach_pre_delif(drvr);
+
 	/* make sure primary interface removed last */
 	for (i = BRCMF_MAX_IFS-1; i > -1; i--)
 		brcmf_remove_interface(drvr->iflist[i], false);
@@ -1308,7 +1314,7 @@ void brcmf_detach(struct device *dev)
 
 	brcmf_bus_stop(drvr->bus_if);
 
-	brcmf_proto_detach(drvr);
+	brcmf_proto_detach_post_delif(drvr);
 
 	bus_if->drvr = NULL;
 	wiphy_free(drvr->wiphy);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,6 +31,10 @@ struct brcmf_dmi_data {
 
 /* NOTE: Please keep all entries sorted alphabetically */
 
+static const struct brcmf_dmi_data acepc_t8_data = {
+	BRCM_CC_4345_CHIP_ID, 6, "acepc-t8"
+};
+
 static const struct brcmf_dmi_data gpd_win_pocket_data = {
 	BRCM_CC_4356_CHIP_ID, 2, "gpd-win-pocket"
 };
@@ -49,6 +53,28 @@ static const struct brcmf_dmi_data pov_t
 
 static const struct dmi_system_id dmi_platform_data[] = {
 	{
+		/* ACEPC T8 Cherry Trail Z8350 mini PC */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T8"),
+			/* also match on somewhat unique bios-version */
+			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
+		},
+		.driver_data = (void *)&acepc_t8_data,
+	},
+	{
+		/* ACEPC T11 Cherry Trail Z8350 mini PC, same wifi as the T8 */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T11"),
+			/* also match on somewhat unique bios-version */
+			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
+		},
+		.driver_data = (void *)&acepc_t8_data,
+	},
+	{
 		/* Match for the GPDwin which unfortunately uses somewhat
 		 * generic dmi strings, which is why we test for 4 strings.
 		 * Comparing against 23 other byt/cht boards, board_vendor
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c	2019-07-28 02:28:39.000000000 -0400
@@ -580,24 +580,6 @@ static bool brcmf_fws_ifidx_match(struct
 	return ifidx == *(int *)arg;
 }
 
-static void brcmf_fws_psq_flush(struct brcmf_fws_info *fws, struct pktq *q,
-				int ifidx)
-{
-	bool (*matchfn)(struct sk_buff *, void *) = NULL;
-	struct sk_buff *skb;
-	int prec;
-
-	if (ifidx != -1)
-		matchfn = brcmf_fws_ifidx_match;
-	for (prec = 0; prec < q->num_prec; prec++) {
-		skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
-		while (skb) {
-			brcmu_pkt_buf_free_skb(skb);
-			skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
-		}
-	}
-}
-
 static void brcmf_fws_hanger_init(struct brcmf_fws_hanger *hanger)
 {
 	int i;
@@ -669,6 +651,28 @@ static inline int brcmf_fws_hanger_poppk
 	return 0;
 }
 
+static void brcmf_fws_psq_flush(struct brcmf_fws_info *fws, struct pktq *q,
+				int ifidx)
+{
+	bool (*matchfn)(struct sk_buff *, void *) = NULL;
+	struct sk_buff *skb;
+	int prec;
+	u32 hslot;
+
+	if (ifidx != -1)
+		matchfn = brcmf_fws_ifidx_match;
+	for (prec = 0; prec < q->num_prec; prec++) {
+		skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
+		while (skb) {
+			hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
+			brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &skb,
+						true);
+			brcmu_pkt_buf_free_skb(skb);
+			skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
+		}
+	}
+}
+
 static int brcmf_fws_hanger_mark_suppressed(struct brcmf_fws_hanger *h,
 					    u32 slot_id)
 {
@@ -2200,6 +2204,8 @@ void brcmf_fws_del_interface(struct brcm
 	brcmf_fws_lock(fws);
 	ifp->fws_desc = NULL;
 	brcmf_dbg(TRACE, "deleting %s\n", entry->name);
+	brcmf_fws_macdesc_cleanup(fws, &fws->desc.iface[ifp->ifidx],
+				  ifp->ifidx);
 	brcmf_fws_macdesc_deinit(entry);
 	brcmf_fws_cleanup(fws, ifp->ifidx);
 	brcmf_fws_unlock(fws);
@@ -2437,17 +2443,25 @@ struct brcmf_fws_info *brcmf_fws_attach(
 	return fws;
 
 fail:
-	brcmf_fws_detach(fws);
+	brcmf_fws_detach_pre_delif(fws);
+	brcmf_fws_detach_post_delif(fws);
 	return ERR_PTR(rc);
 }
 
-void brcmf_fws_detach(struct brcmf_fws_info *fws)
+void brcmf_fws_detach_pre_delif(struct brcmf_fws_info *fws)
 {
 	if (!fws)
 		return;
-
-	if (fws->fws_wq)
+	if (fws->fws_wq) {
 		destroy_workqueue(fws->fws_wq);
+		fws->fws_wq = NULL;
+	}
+}
+
+void brcmf_fws_detach_post_delif(struct brcmf_fws_info *fws)
+{
+	if (!fws)
+		return;
 
 	/* cleanup */
 	brcmf_fws_lock(fws);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h	2019-07-28 02:28:39.000000000 -0400
@@ -19,7 +19,8 @@
 #define FWSIGNAL_H_
 
 struct brcmf_fws_info *brcmf_fws_attach(struct brcmf_pub *drvr);
-void brcmf_fws_detach(struct brcmf_fws_info *fws);
+void brcmf_fws_detach_pre_delif(struct brcmf_fws_info *fws);
+void brcmf_fws_detach_post_delif(struct brcmf_fws_info *fws);
 void brcmf_fws_debugfs_create(struct brcmf_pub *drvr);
 bool brcmf_fws_queue_skbs(struct brcmf_fws_info *fws);
 bool brcmf_fws_fc_active(struct brcmf_fws_info *fws);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.c	2019-07-28 02:28:39.000000000 -0400
@@ -67,16 +67,22 @@ fail:
 	return -ENOMEM;
 }
 
-void brcmf_proto_detach(struct brcmf_pub *drvr)
+void brcmf_proto_detach_post_delif(struct brcmf_pub *drvr)
 {
 	brcmf_dbg(TRACE, "Enter\n");
 
 	if (drvr->proto) {
 		if (drvr->bus_if->proto_type == BRCMF_PROTO_BCDC)
-			brcmf_proto_bcdc_detach(drvr);
+			brcmf_proto_bcdc_detach_post_delif(drvr);
 		else if (drvr->bus_if->proto_type == BRCMF_PROTO_MSGBUF)
 			brcmf_proto_msgbuf_detach(drvr);
 		kfree(drvr->proto);
 		drvr->proto = NULL;
 	}
 }
+
+void brcmf_proto_detach_pre_delif(struct brcmf_pub *drvr)
+{
+	if (drvr->proto && drvr->bus_if->proto_type == BRCMF_PROTO_BCDC)
+		brcmf_proto_bcdc_detach_pre_delif(drvr);
+}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/proto.h	2019-07-28 02:28:39.000000000 -0400
@@ -54,7 +54,8 @@ struct brcmf_proto {
 
 
 int brcmf_proto_attach(struct brcmf_pub *drvr);
-void brcmf_proto_detach(struct brcmf_pub *drvr);
+void brcmf_proto_detach_pre_delif(struct brcmf_pub *drvr);
+void brcmf_proto_detach_post_delif(struct brcmf_pub *drvr);
 
 static inline int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws,
 				      struct sk_buff *skb,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c	2019-05-05 21:34:19.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c	2019-07-28 13:36:47.000000000 -0400
@@ -676,6 +676,12 @@ brcmf_sdio_kso_control(struct brcmf_sdio
 
 	brcmf_dbg(TRACE, "Enter: on=%d\n", on);
 
+	sdio_retune_crc_disable(bus->sdiodev->func1);
+
+	/* Cannot re-tune if device is asleep; defer till we're awake */
+	if (on)
+		sdio_retune_hold_now(bus->sdiodev->func1);
+
 	wr_val = (on << SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT);
 	/* 1st KSO write goes to AOS wake up core if device is asleep  */
 	brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, wr_val, &err);
@@ -736,6 +742,11 @@ brcmf_sdio_kso_control(struct brcmf_sdio
 	if (try_cnt > MAX_KSO_ATTEMPTS)
 		brcmf_err("max tries: rd_val=0x%x err=%d\n", rd_val, err);
 
+	if (on)
+		sdio_retune_release(bus->sdiodev->func1);
+
+	sdio_retune_crc_enable(bus->sdiodev->func1);
+
 	return err;
 }
 
@@ -3373,11 +3384,7 @@ err:
 
 static bool brcmf_sdio_aos_no_decode(struct brcmf_sdio *bus)
 {
-	if (bus->ci->chip == CY_CC_43012_CHIP_ID ||
-	    bus->ci->chip == CY_CC_4373_CHIP_ID ||
-	    bus->ci->chip == BRCM_CC_4339_CHIP_ID ||
-	    bus->ci->chip == BRCM_CC_4345_CHIP_ID ||
-	    bus->ci->chip == BRCM_CC_4354_CHIP_ID)
+	if (bus->ci->chip == CY_CC_43012_CHIP_ID)
 		return true;
 	else
 		return false;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c	2019-05-05 21:34:23.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c	2019-07-28 13:36:50.000000000 -0400
@@ -160,7 +160,7 @@ struct brcmf_usbdev_info {
 
 	struct usb_device *usbdev;
 	struct device *dev;
-	struct mutex dev_init_lock;
+	struct completion dev_init_done;
 
 	int ctl_in_pipe, ctl_out_pipe;
 	struct urb *ctl_urb; /* URB for control endpoint */
@@ -682,12 +682,18 @@ static int brcmf_usb_up(struct device *d
 
 static void brcmf_cancel_all_urbs(struct brcmf_usbdev_info *devinfo)
 {
+	int i;
+
 	if (devinfo->ctl_urb)
 		usb_kill_urb(devinfo->ctl_urb);
 	if (devinfo->bulk_urb)
 		usb_kill_urb(devinfo->bulk_urb);
-	brcmf_usb_free_q(&devinfo->tx_postq, true);
-	brcmf_usb_free_q(&devinfo->rx_postq, true);
+	if (devinfo->tx_reqs)
+		for (i = 0; i < devinfo->bus_pub.ntxq; i++)
+			usb_kill_urb(devinfo->tx_reqs[i].urb);
+	if (devinfo->rx_reqs)
+		for (i = 0; i < devinfo->bus_pub.nrxq; i++)
+			usb_kill_urb(devinfo->rx_reqs[i].urb);
 }
 
 static void brcmf_usb_down(struct device *dev)
@@ -1193,11 +1199,11 @@ static void brcmf_usb_probe_phase2(struc
 	if (ret)
 		goto error;
 
-	mutex_unlock(&devinfo->dev_init_lock);
+	complete(&devinfo->dev_init_done);
 	return;
 error:
 	brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret);
-	mutex_unlock(&devinfo->dev_init_lock);
+	complete(&devinfo->dev_init_done);
 	device_release_driver(dev);
 }
 
@@ -1265,7 +1271,7 @@ static int brcmf_usb_probe_cb(struct brc
 		if (ret)
 			goto fail;
 		/* we are done */
-		mutex_unlock(&devinfo->dev_init_lock);
+		complete(&devinfo->dev_init_done);
 		return 0;
 	}
 	bus->chip = bus_pub->devid;
@@ -1325,11 +1331,10 @@ brcmf_usb_probe(struct usb_interface *in
 
 	devinfo->usbdev = usb;
 	devinfo->dev = &usb->dev;
-	/* Take an init lock, to protect for disconnect while still loading.
+	/* Init completion, to protect for disconnect while still loading.
 	 * Necessary because of the asynchronous firmware load construction
 	 */
-	mutex_init(&devinfo->dev_init_lock);
-	mutex_lock(&devinfo->dev_init_lock);
+	init_completion(&devinfo->dev_init_done);
 
 	usb_set_intfdata(intf, devinfo);
 
@@ -1407,7 +1412,7 @@ brcmf_usb_probe(struct usb_interface *in
 	return 0;
 
 fail:
-	mutex_unlock(&devinfo->dev_init_lock);
+	complete(&devinfo->dev_init_done);
 	kfree(devinfo);
 	usb_set_intfdata(intf, NULL);
 	return ret;
@@ -1422,7 +1427,7 @@ brcmf_usb_disconnect(struct usb_interfac
 	devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
 
 	if (devinfo) {
-		mutex_lock(&devinfo->dev_init_lock);
+		wait_for_completion(&devinfo->dev_init_done);
 		/* Make sure that devinfo still exists. Firmware probe routines
 		 * may have released the device and cleared the intfdata.
 		 */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c
--- linux-libre-5.1-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c	2019-07-28 02:28:39.000000000 -0400
@@ -35,9 +35,10 @@ static int brcmf_cfg80211_vndr_cmds_dcmd
 	struct brcmf_if *ifp;
 	const struct brcmf_vndr_dcmd_hdr *cmdhdr = data;
 	struct sk_buff *reply;
-	int ret, payload, ret_len;
+	unsigned int payload, ret_len;
 	void *dcmd_buf = NULL, *wr_pointer;
 	u16 msglen, maxmsglen = PAGE_SIZE - 0x100;
+	int ret;
 
 	if (len < sizeof(*cmdhdr)) {
 		brcmf_err("vendor command too short: %d\n", len);
@@ -65,7 +66,7 @@ static int brcmf_cfg80211_vndr_cmds_dcmd
 			brcmf_err("oversize return buffer %d\n", ret_len);
 			ret_len = BRCMF_DCMD_MAXLEN;
 		}
-		payload = max(ret_len, len) + 1;
+		payload = max_t(unsigned int, ret_len, len) + 1;
 		dcmd_buf = vzalloc(payload);
 		if (NULL == dcmd_buf)
 			return -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/fw/dbg.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/fw/dbg.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/fw/dbg.c	2019-07-28 02:28:39.000000000 -0400
@@ -2146,8 +2146,6 @@ void iwl_fw_dbg_collect_sync(struct iwl_
 	/* start recording again if the firmware is not crashed */
 	if (!test_bit(STATUS_FW_ERROR, &fwrt->trans->status) &&
 	    fwrt->fw->dbg.dest_tlv) {
-		/* wait before we collect the data till the DBGC stop */
-		udelay(500);
 		iwl_fw_dbg_restart_recording(fwrt, &params);
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/fw/dbg.h linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/fw/dbg.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/fw/dbg.h	2019-07-28 02:28:39.000000000 -0400
@@ -297,7 +297,10 @@ _iwl_fw_dbg_stop_recording(struct iwl_tr
 	}
 
 	iwl_write_umac_prph(trans, DBGC_IN_SAMPLE, 0);
-	udelay(100);
+	/* wait for the DBGC to finish writing the internal buffer to DRAM to
+	 * avoid halting the HW while writing
+	 */
+	usleep_range(700, 1000);
 	iwl_write_umac_prph(trans, DBGC_OUT_CTRL, 0);
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	trans->dbg_rec_on = false;
@@ -327,7 +330,6 @@ _iwl_fw_dbg_restart_recording(struct iwl
 		iwl_set_bits_prph(trans, MON_BUFF_SAMPLE_CTL, 0x1);
 	} else {
 		iwl_write_umac_prph(trans, DBGC_IN_SAMPLE, params->in_sample);
-		udelay(100);
 		iwl_write_umac_prph(trans, DBGC_OUT_CTRL, params->out_ctrl);
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/fw/smem.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/fw/smem.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/fw/smem.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/fw/smem.c	2019-07-28 02:28:39.000000000 -0400
@@ -8,7 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -134,6 +134,7 @@ void iwl_get_shared_mem_conf(struct iwl_
 		.len = { 0, },
 	};
 	struct iwl_rx_packet *pkt;
+	int ret;
 
 	if (fw_has_capa(&fwrt->fw->ucode_capa,
 			IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG))
@@ -141,8 +142,13 @@ void iwl_get_shared_mem_conf(struct iwl_
 	else
 		cmd.id = SHARED_MEM_CFG;
 
-	if (WARN_ON(iwl_trans_send_cmd(fwrt->trans, &cmd)))
+	ret = iwl_trans_send_cmd(fwrt->trans, &cmd);
+
+	if (ret) {
+		WARN(ret != -ERFKILL,
+		     "Could not send the SMEM command: %d\n", ret);
 		return;
+	}
 
 	pkt = cmd.resp_pkt;
 	if (fwrt->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22000)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/iwl-csr.h linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/iwl-csr.h
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/iwl-csr.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/iwl-csr.h	2019-07-28 02:28:39.000000000 -0400
@@ -335,6 +335,7 @@ enum {
 /* RF_ID value */
 #define CSR_HW_RF_ID_TYPE_JF		(0x00105100)
 #define CSR_HW_RF_ID_TYPE_HR		(0x0010A000)
+#define CSR_HW_RF_ID_TYPE_HR1		(0x0010c100)
 #define CSR_HW_RF_ID_TYPE_HRCDB		(0x00109F00)
 #define CSR_HW_RF_ID_TYPE_GF		(0x0010D000)
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/iwl-drv.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/iwl-drv.c	2019-05-05 21:35:13.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/iwl-drv.c	2019-07-28 13:37:48.000000000 -0400
@@ -1579,7 +1579,6 @@ static void iwl_req_fw_callback(const st
 	goto free;
 
  out_free_fw:
-	iwl_dealloc_ucode(drv);
 	release_firmware(ucode_raw);
  out_unbind:
 	complete(&drv->request_firmware_complete);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/iwl-prph.h linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/iwl-prph.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/iwl-prph.h	2019-07-28 02:28:39.000000000 -0400
@@ -402,7 +402,12 @@ enum aux_misc_master1_en {
 #define AUX_MISC_MASTER1_SMPHR_STATUS	0xA20800
 #define RSA_ENABLE			0xA24B08
 #define PREG_AUX_BUS_WPROT_0		0xA04CC0
-#define PREG_PRPH_WPROT_0		0xA04CE0
+
+/* device family 9000 WPROT register */
+#define PREG_PRPH_WPROT_9000		0xA04CE0
+/* device family 22000 WPROT register */
+#define PREG_PRPH_WPROT_22000		0xA04D00
+
 #define SB_CPU_1_STATUS			0xA01E30
 #define SB_CPU_2_STATUS			0xA01E34
 #define UMAG_SB_CPU_1_STATUS		0xA038C0
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw.c	2019-07-28 02:28:39.000000000 -0400
@@ -311,6 +311,8 @@ static int iwl_mvm_load_ucode_wait_alive
 	int ret;
 	enum iwl_ucode_type old_type = mvm->fwrt.cur_fw_img;
 	static const u16 alive_cmd[] = { MVM_ALIVE };
+	bool run_in_rfkill =
+		ucode_type == IWL_UCODE_INIT || iwl_mvm_has_unified_ucode(mvm);
 
 	if (ucode_type == IWL_UCODE_REGULAR &&
 	    iwl_fw_dbg_conf_usniffer(mvm->fw, FW_DBG_START_FROM_ALIVE) &&
@@ -328,7 +330,12 @@ static int iwl_mvm_load_ucode_wait_alive
 				   alive_cmd, ARRAY_SIZE(alive_cmd),
 				   iwl_alive_fn, &alive_data);
 
-	ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
+	/*
+	 * We want to load the INIT firmware even in RFKILL
+	 * For the unified firmware case, the ucode_type is not
+	 * INIT, but we still need to run it.
+	 */
+	ret = iwl_trans_start_fw(mvm->trans, fw, run_in_rfkill);
 	if (ret) {
 		iwl_fw_set_current_image(&mvm->fwrt, old_type);
 		iwl_remove_notification(&mvm->notif_wait, &alive_wait);
@@ -412,6 +419,8 @@ static int iwl_run_unified_mvm_ucode(str
 
 	lockdep_assert_held(&mvm->mutex);
 
+	mvm->rfkill_safe_init_done = false;
+
 	iwl_init_notification_wait(&mvm->notif_wait,
 				   &init_wait,
 				   init_complete,
@@ -433,7 +442,8 @@ static int iwl_run_unified_mvm_ucode(str
 	 * commands
 	 */
 	ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(SYSTEM_GROUP,
-						INIT_EXTENDED_CFG_CMD), 0,
+						INIT_EXTENDED_CFG_CMD),
+				   CMD_SEND_IN_RFKILL,
 				   sizeof(init_cfg), &init_cfg);
 	if (ret) {
 		IWL_ERR(mvm, "Failed to run init config command: %d\n",
@@ -457,7 +467,8 @@ static int iwl_run_unified_mvm_ucode(str
 	}
 
 	ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(REGULATORY_AND_NVM_GROUP,
-						NVM_ACCESS_COMPLETE), 0,
+						NVM_ACCESS_COMPLETE),
+				   CMD_SEND_IN_RFKILL,
 				   sizeof(nvm_complete), &nvm_complete);
 	if (ret) {
 		IWL_ERR(mvm, "Failed to run complete NVM access: %d\n",
@@ -482,6 +493,8 @@ static int iwl_run_unified_mvm_ucode(str
 		}
 	}
 
+	mvm->rfkill_safe_init_done = true;
+
 	return 0;
 
 error:
@@ -526,8 +539,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mv
 
 	lockdep_assert_held(&mvm->mutex);
 
-	if (WARN_ON_ONCE(mvm->calibrating))
-		return 0;
+	mvm->rfkill_safe_init_done = false;
 
 	iwl_init_notification_wait(&mvm->notif_wait,
 				   &calib_wait,
@@ -576,7 +588,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mv
 		goto remove_notif;
 	}
 
-	mvm->calibrating = true;
+	mvm->rfkill_safe_init_done = true;
 
 	/* Send TX valid antennas before triggering calibrations */
 	ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
@@ -612,7 +624,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mv
 remove_notif:
 	iwl_remove_notification(&mvm->notif_wait, &calib_wait);
 out:
-	mvm->calibrating = false;
+	mvm->rfkill_safe_init_done = false;
 	if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
 		/* we want to debug INIT and we have no NVM - fake */
 		mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
@@ -1097,10 +1109,13 @@ static int iwl_mvm_load_rt_fw(struct iwl
 
 	iwl_fw_dbg_apply_point(&mvm->fwrt, IWL_FW_INI_APPLY_EARLY);
 
+	mvm->rfkill_safe_init_done = false;
 	ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
 	if (ret)
 		return ret;
 
+	mvm->rfkill_safe_init_done = true;
+
 	iwl_fw_dbg_apply_point(&mvm->fwrt, IWL_FW_INI_APPLY_AFTER_ALIVE);
 
 	return iwl_init_paging(&mvm->fwrt, mvm->fwrt.cur_fw_img);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c	2019-07-28 02:28:39.000000000 -0400
@@ -207,6 +207,12 @@ static const struct cfg80211_pmsr_capabi
 	},
 };
 
+static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
+			       enum set_key_cmd cmd,
+			       struct ieee80211_vif *vif,
+			       struct ieee80211_sta *sta,
+			       struct ieee80211_key_conf *key);
+
 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
 {
 	if (!iwl_mvm_is_d0i3_supported(mvm))
@@ -1211,7 +1217,7 @@ static void iwl_mvm_restart_cleanup(stru
 
 	mvm->scan_status = 0;
 	mvm->ps_disabled = false;
-	mvm->calibrating = false;
+	mvm->rfkill_safe_init_done = false;
 
 	/* just in case one was running */
 	iwl_mvm_cleanup_roc_te(mvm);
@@ -2535,7 +2541,7 @@ static int iwl_mvm_start_ap_ibss(struct
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-	int ret;
+	int ret, i;
 
 	/*
 	 * iwl_mvm_mac_ctxt_add() might read directly from the device
@@ -2609,6 +2615,20 @@ static int iwl_mvm_start_ap_ibss(struct
 	/* must be set before quota calculations */
 	mvmvif->ap_ibss_active = true;
 
+	/* send all the early keys to the device now */
+	for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
+		struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
+
+		if (!key)
+			continue;
+
+		mvmvif->ap_early_keys[i] = NULL;
+
+		ret = iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
+		if (ret)
+			goto out_quota_failed;
+	}
+
 	if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
 		iwl_mvm_vif_set_low_latency(mvmvif, true,
 					    LOW_LATENCY_VIF_TYPE);
@@ -3378,11 +3398,12 @@ static int iwl_mvm_mac_set_key(struct ie
 			       struct ieee80211_sta *sta,
 			       struct ieee80211_key_conf *key)
 {
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_mvm_sta *mvmsta;
 	struct iwl_mvm_key_pn *ptk_pn;
 	int keyidx = key->keyidx;
-	int ret;
+	int ret, i;
 	u8 key_offset;
 
 	if (iwlwifi_mod_params.swcrypto) {
@@ -3455,6 +3476,22 @@ static int iwl_mvm_mac_set_key(struct ie
 				key->hw_key_idx = STA_KEY_IDX_INVALID;
 				break;
 			}
+
+			if (!mvmvif->ap_ibss_active) {
+				for (i = 0;
+				     i < ARRAY_SIZE(mvmvif->ap_early_keys);
+				     i++) {
+					if (!mvmvif->ap_early_keys[i]) {
+						mvmvif->ap_early_keys[i] = key;
+						break;
+					}
+				}
+
+				if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
+					ret = -ENOSPC;
+
+				break;
+			}
 		}
 
 		/* During FW restart, in order to restore the state as it was,
@@ -3523,6 +3560,18 @@ static int iwl_mvm_mac_set_key(struct ie
 
 		break;
 	case DISABLE_KEY:
+		ret = -ENOENT;
+		for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
+			if (mvmvif->ap_early_keys[i] == key) {
+				mvmvif->ap_early_keys[i] = NULL;
+				ret = 0;
+			}
+		}
+
+		/* found in pending list - don't do anything else */
+		if (ret == 0)
+			break;
+
 		if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
 			ret = 0;
 			break;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h	2019-07-28 02:28:39.000000000 -0400
@@ -498,6 +498,9 @@ struct iwl_mvm_vif {
 	netdev_features_t features;
 
 	struct iwl_probe_resp_data __rcu *probe_resp_data;
+
+	/* we can only have 2 GTK + 2 IGTK active at a time */
+	struct ieee80211_key_conf *ap_early_keys[4];
 };
 
 static inline struct iwl_mvm_vif *
@@ -877,7 +880,7 @@ struct iwl_mvm {
 	struct iwl_mvm_vif *bf_allowed_vif;
 
 	bool hw_registered;
-	bool calibrating;
+	bool rfkill_safe_init_done;
 	bool support_umac_log;
 
 	u32 ampdu_ref;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/ops.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/ops.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/ops.c	2019-07-28 02:28:39.000000000 -0400
@@ -1222,7 +1222,8 @@ void iwl_mvm_set_hw_ctkill_state(struct
 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
-	bool calibrating = READ_ONCE(mvm->calibrating);
+	bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
+	bool unified = iwl_mvm_has_unified_ucode(mvm);
 
 	if (state)
 		set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
@@ -1231,15 +1232,23 @@ static bool iwl_mvm_set_hw_rfkill_state(
 
 	iwl_mvm_set_rfkill_state(mvm);
 
-	/* iwl_run_init_mvm_ucode is waiting for results, abort it */
-	if (calibrating)
+	 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
+	if (rfkill_safe_init_done)
 		iwl_abort_notification_waits(&mvm->notif_wait);
 
 	/*
+	 * Don't ask the transport to stop the firmware. We'll do it
+	 * after cfg80211 takes us down.
+	 */
+	if (unified)
+		return false;
+
+	/*
 	 * Stop the device if we run OPERATIONAL firmware or if we are in the
 	 * middle of the calibrations.
 	 */
-	return state && (mvm->fwrt.cur_fw_img != IWL_UCODE_INIT || calibrating);
+	return state && (mvm->fwrt.cur_fw_img != IWL_UCODE_INIT ||
+			 rfkill_safe_init_done);
 }
 
 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/sta.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/sta.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/sta.c	2019-07-28 02:28:39.000000000 -0400
@@ -2277,7 +2277,8 @@ int iwl_mvm_add_mcast_sta(struct iwl_mvm
 	static const u8 _maddr[] = {0x03, 0x00, 0x00, 0x00, 0x00, 0x00};
 	const u8 *maddr = _maddr;
 	struct iwl_trans_txq_scd_cfg cfg = {
-		.fifo = IWL_MVM_TX_FIFO_MCAST,
+		.fifo = vif->type == NL80211_IFTYPE_AP ?
+			IWL_MVM_TX_FIFO_MCAST : IWL_MVM_TX_FIFO_BE,
 		.sta_id = msta->sta_id,
 		.tid = 0,
 		.aggregate = false,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c	2019-07-28 02:28:39.000000000 -0400
@@ -726,6 +726,9 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mv
 
 	memcpy(&info, skb->cb, sizeof(info));
 
+	if (WARN_ON_ONCE(skb->len > IEEE80211_MAX_DATA_LEN + hdrlen))
+		return -1;
+
 	if (WARN_ON_ONCE(info.flags & IEEE80211_TX_CTL_AMPDU))
 		return -1;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c	2019-07-28 02:28:39.000000000 -0400
@@ -222,7 +222,7 @@ int iwl_pcie_ctxt_info_init(struct iwl_t
 
 	trans_pcie->ctxt_info = ctxt_info;
 
-	iwl_enable_interrupts(trans);
+	iwl_enable_fw_load_int_ctx_info(trans);
 
 	/* Configure debug, if exists */
 	if (iwl_pcie_dbg_on(trans))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c	2019-07-28 02:28:39.000000000 -0400
@@ -168,7 +168,7 @@ int iwl_pcie_ctxt_info_gen3_init(struct
 
 	memcpy(iml_img, trans->iml, trans->iml_len);
 
-	iwl_enable_interrupts(trans);
+	iwl_enable_fw_load_int_ctx_info(trans);
 
 	/* kick FW self load */
 	iwl_write64(trans, CSR_CTXT_INFO_ADDR,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/internal.h linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/internal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/internal.h	2019-07-28 02:28:39.000000000 -0400
@@ -894,6 +894,33 @@ static inline void iwl_enable_fw_load_in
 	}
 }
 
+static inline void iwl_enable_fw_load_int_ctx_info(struct iwl_trans *trans)
+{
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+
+	IWL_DEBUG_ISR(trans, "Enabling ALIVE interrupt only\n");
+
+	if (!trans_pcie->msix_enabled) {
+		/*
+		 * When we'll receive the ALIVE interrupt, the ISR will call
+		 * iwl_enable_fw_load_int_ctx_info again to set the ALIVE
+		 * interrupt (which is not really needed anymore) but also the
+		 * RX interrupt which will allow us to receive the ALIVE
+		 * notification (which is Rx) and continue the flow.
+		 */
+		trans_pcie->inta_mask =  CSR_INT_BIT_ALIVE | CSR_INT_BIT_FH_RX;
+		iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
+	} else {
+		iwl_enable_hw_int_msk_msix(trans,
+					   MSIX_HW_INT_CAUSES_REG_ALIVE);
+		/*
+		 * Leave all the FH causes enabled to get the ALIVE
+		 * notification.
+		 */
+		iwl_enable_fh_int_msk_msix(trans, trans_pcie->fh_init_mask);
+	}
+}
+
 static inline u16 iwl_pcie_get_cmd_index(const struct iwl_txq *q, u32 index)
 {
 	return index & (q->n_window - 1);
@@ -948,7 +975,7 @@ static inline void iwl_enable_rfkill_int
 					   MSIX_HW_INT_CAUSES_REG_RF_KILL);
 	}
 
-	if (trans->cfg->device_family == IWL_DEVICE_FAMILY_9000) {
+	if (trans->cfg->device_family >= IWL_DEVICE_FAMILY_9000) {
 		/*
 		 * On 9000-series devices this bit isn't enabled by default, so
 		 * when we power down the device we need set the bit to allow it
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/rx.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/rx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/rx.c	2019-07-28 02:28:39.000000000 -0400
@@ -1434,10 +1434,15 @@ out_err:
 static void iwl_pcie_rx_handle(struct iwl_trans *trans, int queue)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_rxq *rxq = &trans_pcie->rxq[queue];
+	struct iwl_rxq *rxq;
 	u32 r, i, count = 0;
 	bool emergency = false;
 
+	if (WARN_ON_ONCE(!trans_pcie->rxq || !trans_pcie->rxq[queue].bd))
+		return;
+
+	rxq = &trans_pcie->rxq[queue];
+
 restart:
 	spin_lock(&rxq->lock);
 	/* uCode's read index (stored in shared DRAM) indicates the last Rx
@@ -1827,26 +1832,26 @@ irqreturn_t iwl_pcie_irq_handler(int irq
 		goto out;
 	}
 
-	if (iwl_have_debug_level(IWL_DL_ISR)) {
-		/* NIC fires this, but we don't use it, redundant with WAKEUP */
-		if (inta & CSR_INT_BIT_SCD) {
-			IWL_DEBUG_ISR(trans,
-				      "Scheduler finished to transmit the frame/frames.\n");
-			isr_stats->sch++;
-		}
+	/* NIC fires this, but we don't use it, redundant with WAKEUP */
+	if (inta & CSR_INT_BIT_SCD) {
+		IWL_DEBUG_ISR(trans,
+			      "Scheduler finished to transmit the frame/frames.\n");
+		isr_stats->sch++;
+	}
 
-		/* Alive notification via Rx interrupt will do the real work */
-		if (inta & CSR_INT_BIT_ALIVE) {
-			IWL_DEBUG_ISR(trans, "Alive interrupt\n");
-			isr_stats->alive++;
-			if (trans->cfg->gen2) {
-				/*
-				 * We can restock, since firmware configured
-				 * the RFH
-				 */
-				iwl_pcie_rxmq_restock(trans, trans_pcie->rxq);
-			}
+	/* Alive notification via Rx interrupt will do the real work */
+	if (inta & CSR_INT_BIT_ALIVE) {
+		IWL_DEBUG_ISR(trans, "Alive interrupt\n");
+		isr_stats->alive++;
+		if (trans->cfg->gen2) {
+			/*
+			 * We can restock, since firmware configured
+			 * the RFH
+			 */
+			iwl_pcie_rxmq_restock(trans, trans_pcie->rxq);
 		}
+
+		handled |= CSR_INT_BIT_ALIVE;
 	}
 
 	/* Safely ignore these bits for debug checks below */
@@ -1965,6 +1970,9 @@ irqreturn_t iwl_pcie_irq_handler(int irq
 	/* Re-enable RF_KILL if it occurred */
 	else if (handled & CSR_INT_BIT_RF_KILL)
 		iwl_enable_rfkill_int(trans);
+	/* Re-enable the ALIVE / Rx interrupt if it occurred */
+	else if (handled & (CSR_INT_BIT_ALIVE | CSR_INT_BIT_FH_RX))
+		iwl_enable_fw_load_int_ctx_info(trans);
 	spin_unlock(&trans_pcie->irq_lock);
 
 out:
@@ -2108,10 +2116,18 @@ irqreturn_t iwl_pcie_irq_msix_handler(in
 		return IRQ_NONE;
 	}
 
-	if (iwl_have_debug_level(IWL_DL_ISR))
-		IWL_DEBUG_ISR(trans, "ISR inta_fh 0x%08x, enabled 0x%08x\n",
-			      inta_fh,
+	if (iwl_have_debug_level(IWL_DL_ISR)) {
+		IWL_DEBUG_ISR(trans,
+			      "ISR inta_fh 0x%08x, enabled (sw) 0x%08x (hw) 0x%08x\n",
+			      inta_fh, trans_pcie->fh_mask,
 			      iwl_read32(trans, CSR_MSIX_FH_INT_MASK_AD));
+		if (inta_fh & ~trans_pcie->fh_mask)
+			IWL_DEBUG_ISR(trans,
+				      "We got a masked interrupt (0x%08x)\n",
+				      inta_fh & ~trans_pcie->fh_mask);
+	}
+
+	inta_fh &= trans_pcie->fh_mask;
 
 	if ((trans_pcie->shared_vec_mask & IWL_SHARED_IRQ_NON_RX) &&
 	    inta_fh & MSIX_FH_INT_CAUSES_Q0) {
@@ -2151,11 +2167,18 @@ irqreturn_t iwl_pcie_irq_msix_handler(in
 	}
 
 	/* After checking FH register check HW register */
-	if (iwl_have_debug_level(IWL_DL_ISR))
+	if (iwl_have_debug_level(IWL_DL_ISR)) {
 		IWL_DEBUG_ISR(trans,
-			      "ISR inta_hw 0x%08x, enabled 0x%08x\n",
-			      inta_hw,
+			      "ISR inta_hw 0x%08x, enabled (sw) 0x%08x (hw) 0x%08x\n",
+			      inta_hw, trans_pcie->hw_mask,
 			      iwl_read32(trans, CSR_MSIX_HW_INT_MASK_AD));
+		if (inta_hw & ~trans_pcie->hw_mask)
+			IWL_DEBUG_ISR(trans,
+				      "We got a masked interrupt 0x%08x\n",
+				      inta_hw & ~trans_pcie->hw_mask);
+	}
+
+	inta_hw &= trans_pcie->hw_mask;
 
 	/* Alive notification via Rx interrupt will do the real work */
 	if (inta_hw & MSIX_HW_INT_CAUSES_REG_ALIVE) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans.c	2019-07-28 02:28:39.000000000 -0400
@@ -1696,26 +1696,26 @@ static int iwl_pcie_init_msix_handler(st
 	return 0;
 }
 
-static int _iwl_trans_pcie_start_hw(struct iwl_trans *trans, bool low_power)
+static int iwl_trans_pcie_clear_persistence_bit(struct iwl_trans *trans)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	u32 hpm;
-	int err;
-
-	lockdep_assert_held(&trans_pcie->mutex);
+	u32 hpm, wprot;
 
-	err = iwl_pcie_prepare_card_hw(trans);
-	if (err) {
-		IWL_ERR(trans, "Error while preparing HW: %d\n", err);
-		return err;
+	switch (trans->cfg->device_family) {
+	case IWL_DEVICE_FAMILY_9000:
+		wprot = PREG_PRPH_WPROT_9000;
+		break;
+	case IWL_DEVICE_FAMILY_22000:
+		wprot = PREG_PRPH_WPROT_22000;
+		break;
+	default:
+		return 0;
 	}
 
 	hpm = iwl_read_umac_prph_no_grab(trans, HPM_DEBUG);
 	if (hpm != 0xa5a5a5a0 && (hpm & PERSISTENCE_BIT)) {
-		int wfpm_val = iwl_read_umac_prph_no_grab(trans,
-							  PREG_PRPH_WPROT_0);
+		u32 wprot_val = iwl_read_umac_prph_no_grab(trans, wprot);
 
-		if (wfpm_val & PREG_WFPM_ACCESS) {
+		if (wprot_val & PREG_WFPM_ACCESS) {
 			IWL_ERR(trans,
 				"Error, can not clear persistence bit\n");
 			return -EPERM;
@@ -1724,6 +1724,26 @@ static int _iwl_trans_pcie_start_hw(stru
 					    hpm & ~PERSISTENCE_BIT);
 	}
 
+	return 0;
+}
+
+static int _iwl_trans_pcie_start_hw(struct iwl_trans *trans, bool low_power)
+{
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+	int err;
+
+	lockdep_assert_held(&trans_pcie->mutex);
+
+	err = iwl_pcie_prepare_card_hw(trans);
+	if (err) {
+		IWL_ERR(trans, "Error while preparing HW: %d\n", err);
+		return err;
+	}
+
+	err = iwl_trans_pcie_clear_persistence_bit(trans);
+	if (err)
+		return err;
+
 	iwl_trans_pcie_sw_reset(trans);
 
 	err = iwl_pcie_apm_init(trans);
@@ -3542,9 +3562,11 @@ struct iwl_trans *iwl_trans_pcie_alloc(s
 			trans->cfg = &iwlax210_2ax_cfg_so_gf_a0;
 		}
 	} else if (cfg == &iwl_ax101_cfg_qu_hr) {
-		if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
-		    CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR) &&
-		    trans->hw_rev == CSR_HW_REV_TYPE_QNJ_B0) {
+		if ((CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
+		     CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR) &&
+		     trans->hw_rev == CSR_HW_REV_TYPE_QNJ_B0) ||
+		    (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
+		     CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR1))) {
 			trans->cfg = &iwl22000_2ax_cfg_qnj_hr_b0;
 		} else if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
 		    CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR)) {
@@ -3565,7 +3587,9 @@ struct iwl_trans *iwl_trans_pcie_alloc(s
 		}
 	} else if (CSR_HW_RF_ID_TYPE_CHIP_ID(trans->hw_rf_id) ==
 		   CSR_HW_RF_ID_TYPE_CHIP_ID(CSR_HW_RF_ID_TYPE_HR) &&
-		   (trans->cfg != &iwl_ax200_cfg_cc ||
+		   ((trans->cfg != &iwl_ax200_cfg_cc &&
+		    trans->cfg != &killer1650x_2ax_cfg &&
+		    trans->cfg != &killer1650w_2ax_cfg) ||
 		    trans->hw_rev == CSR_HW_REV_TYPE_QNJ_B0)) {
 		u32 hw_status;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c	2019-07-28 02:28:39.000000000 -0400
@@ -272,6 +272,15 @@ void iwl_trans_pcie_gen2_fw_alive(struct
 	 * paging memory cannot be freed included since FW will still use it
 	 */
 	iwl_pcie_ctxt_info_free(trans);
+
+	/*
+	 * Re-enable all the interrupts, including the RF-Kill one, now that
+	 * the firmware is alive.
+	 */
+	iwl_enable_interrupts(trans);
+	mutex_lock(&trans_pcie->mutex);
+	iwl_pcie_check_hw_rf_kill(trans);
+	mutex_unlock(&trans_pcie->mutex);
 }
 
 int iwl_trans_pcie_gen2_start_fw(struct iwl_trans *trans,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intersil/p54/p54pci.c linux-libre-5.1.21-gnu/drivers/net/wireless/intersil/p54/p54pci.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intersil/p54/p54pci.c	2019-05-05 21:37:51.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intersil/p54/p54pci.c	2019-07-28 13:40:48.000000000 -0400
@@ -554,7 +554,7 @@ static int p54p_probe(struct pci_dev *pd
 	err = pci_enable_device(pdev);
 	if (err) {
 		dev_err(&pdev->dev, "Cannot enable new PCI device\n");
-		return err;
+		goto err_put;
 	}
 
 	mem_addr = pci_resource_start(pdev, 0);
@@ -639,6 +639,7 @@ static int p54p_probe(struct pci_dev *pd
 	pci_release_regions(pdev);
  err_disable_dev:
 	pci_disable_device(pdev);
+err_put:
 	pci_dev_put(pdev);
 	return err;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intersil/p54/p54usb.c linux-libre-5.1.21-gnu/drivers/net/wireless/intersil/p54/p54usb.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intersil/p54/p54usb.c	2019-05-05 21:37:57.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intersil/p54/p54usb.c	2019-07-28 13:40:55.000000000 -0400
@@ -32,6 +32,8 @@ MODULE_LICENSE("GPL");
 MODULE_ALIAS("prism54usb");
 /*(DEBLOBBED)*/
 
+static struct usb_driver p54u_driver;
+
 /*
  * Note:
  *
@@ -920,9 +922,9 @@ static void p54u_load_firmware_cb(const
 {
 	struct p54u_priv *priv = context;
 	struct usb_device *udev = priv->udev;
+	struct usb_interface *intf = priv->intf;
 	int err;
 
-	complete(&priv->fw_wait_load);
 	if (firmware) {
 		priv->fw = firmware;
 		err = p54u_start_ops(priv);
@@ -931,26 +933,22 @@ static void p54u_load_firmware_cb(const
 		dev_err(&udev->dev, "Firmware not found.\n");
 	}
 
-	if (err) {
-		struct device *parent = priv->udev->dev.parent;
-
-		dev_err(&udev->dev, "failed to initialize device (%d)\n", err);
-
-		if (parent)
-			device_lock(parent);
+	complete(&priv->fw_wait_load);
+	/*
+	 * At this point p54u_disconnect may have already freed
+	 * the "priv" context. Do not use it anymore!
+	 */
+	priv = NULL;
 
-		device_release_driver(&udev->dev);
-		/*
-		 * At this point p54u_disconnect has already freed
-		 * the "priv" context. Do not use it anymore!
-		 */
-		priv = NULL;
+	if (err) {
+		dev_err(&intf->dev, "failed to initialize device (%d)\n", err);
 
-		if (parent)
-			device_unlock(parent);
+		usb_lock_device(udev);
+		usb_driver_release_interface(&p54u_driver, intf);
+		usb_unlock_device(udev);
 	}
 
-	usb_put_dev(udev);
+	usb_put_intf(intf);
 }
 
 static int p54u_load_firmware(struct ieee80211_hw *dev,
@@ -971,14 +969,14 @@ static int p54u_load_firmware(struct iee
 	dev_info(&priv->udev->dev, "Loading firmware file %s\n",
 	       p54u_fwlist[i].fw);
 
-	usb_get_dev(udev);
+	usb_get_intf(intf);
 	err = reject_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw,
 				      device, GFP_KERNEL, priv,
 				      p54u_load_firmware_cb);
 	if (err) {
 		dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s "
 					  "(%d)!\n", p54u_fwlist[i].fw, err);
-		usb_put_dev(udev);
+		usb_put_intf(intf);
 	}
 
 	return err;
@@ -1010,8 +1008,6 @@ static int p54u_probe(struct usb_interfa
 	skb_queue_head_init(&priv->rx_queue);
 	init_usb_anchor(&priv->submitted);
 
-	usb_get_dev(udev);
-
 	/* really lazy and simple way of figuring out if we're a 3887 */
 	/* TODO: should just stick the identification in the device table */
 	i = intf->altsetting->desc.bNumEndpoints;
@@ -1052,10 +1048,8 @@ static int p54u_probe(struct usb_interfa
 		priv->upload_fw = p54u_upload_firmware_net2280;
 	}
 	err = p54u_load_firmware(dev, intf);
-	if (err) {
-		usb_put_dev(udev);
+	if (err)
 		p54_free_common(dev);
-	}
 	return err;
 }
 
@@ -1071,7 +1065,6 @@ static void p54u_disconnect(struct usb_i
 	wait_for_completion(&priv->fw_wait_load);
 	p54_unregister_common(dev);
 
-	usb_put_dev(interface_to_usbdev(intf));
 	release_firmware(priv->fw);
 	p54_free_common(dev);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/intersil/p54/txrx.c linux-libre-5.1.21-gnu/drivers/net/wireless/intersil/p54/txrx.c
--- linux-libre-5.1-gnu/drivers/net/wireless/intersil/p54/txrx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/intersil/p54/txrx.c	2019-07-28 02:28:39.000000000 -0400
@@ -142,7 +142,10 @@ static int p54_assign_address(struct p54
 	    unlikely(GET_HW_QUEUE(skb) == P54_QUEUE_BEACON))
 		priv->beacon_req_id = data->req_id;
 
-	__skb_queue_after(&priv->tx_queue, target_skb, skb);
+	if (target_skb)
+		__skb_queue_after(&priv->tx_queue, target_skb, skb);
+	else
+		__skb_queue_head(&priv->tx_queue, skb);
 	spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/cfg80211.c linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/cfg80211.c
--- linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/cfg80211.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/cfg80211.c	2019-07-28 02:28:39.000000000 -0400
@@ -4082,16 +4082,20 @@ static int mwifiex_tm_cmd(struct wiphy *
 
 		if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) {
 			dev_err(priv->adapter->dev, "Failed to process hostcmd\n");
+			kfree(hostcmd);
 			return -EFAULT;
 		}
 
 		/* process hostcmd response*/
 		skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len);
-		if (!skb)
+		if (!skb) {
+			kfree(hostcmd);
 			return -ENOMEM;
+		}
 		err = nla_put(skb, MWIFIEX_TM_ATTR_DATA,
 			      hostcmd->len, hostcmd->cmd);
 		if (err) {
+			kfree(hostcmd);
 			kfree_skb(skb);
 			return -EMSGSIZE;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/cfp.c linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/cfp.c
--- linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/cfp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/cfp.c	2019-07-28 02:28:39.000000000 -0400
@@ -531,5 +531,8 @@ u8 mwifiex_adjust_data_rate(struct mwifi
 		rate_index = (rx_rate > MWIFIEX_RATE_INDEX_OFDM0) ?
 			      rx_rate - 1 : rx_rate;
 
+	if (rate_index >= MWIFIEX_MAX_AC_RX_RATES)
+		rate_index = MWIFIEX_MAX_AC_RX_RATES - 1;
+
 	return rate_index;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/fw.h linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/fw.h
--- linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/fw.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/fw.h	2019-07-28 02:28:39.000000000 -0400
@@ -1759,9 +1759,10 @@ struct mwifiex_ie_types_wmm_queue_status
 struct ieee_types_vendor_header {
 	u8 element_id;
 	u8 len;
-	u8 oui[4];	/* 0~2: oui, 3: oui_type */
-	u8 oui_subtype;
-	u8 version;
+	struct {
+		u8 oui[3];
+		u8 oui_type;
+	} __packed oui;
 } __packed;
 
 struct ieee_types_wmm_parameter {
@@ -1775,6 +1776,9 @@ struct ieee_types_wmm_parameter {
 	 *   Version     [1]
 	 */
 	struct ieee_types_vendor_header vend_hdr;
+	u8 oui_subtype;
+	u8 version;
+
 	u8 qos_info_bitmap;
 	u8 reserved;
 	struct ieee_types_wmm_ac_parameters ac_params[IEEE80211_NUM_ACS];
@@ -1792,6 +1796,8 @@ struct ieee_types_wmm_info {
 	 *   Version     [1]
 	 */
 	struct ieee_types_vendor_header vend_hdr;
+	u8 oui_subtype;
+	u8 version;
 
 	u8 qos_info_bitmap;
 } __packed;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/ie.c linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/ie.c
--- linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/ie.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/ie.c	2019-07-28 02:28:39.000000000 -0400
@@ -329,6 +329,8 @@ static int mwifiex_uap_parse_tail_ies(st
 	struct ieee80211_vendor_ie *vendorhdr;
 	u16 gen_idx = MWIFIEX_AUTO_IDX_MASK, ie_len = 0;
 	int left_len, parsed_len = 0;
+	unsigned int token_len;
+	int err = 0;
 
 	if (!info->tail || !info->tail_len)
 		return 0;
@@ -344,6 +346,12 @@ static int mwifiex_uap_parse_tail_ies(st
 	 */
 	while (left_len > sizeof(struct ieee_types_header)) {
 		hdr = (void *)(info->tail + parsed_len);
+		token_len = hdr->len + sizeof(struct ieee_types_header);
+		if (token_len > left_len) {
+			err = -EINVAL;
+			goto out;
+		}
+
 		switch (hdr->element_id) {
 		case WLAN_EID_SSID:
 		case WLAN_EID_SUPP_RATES:
@@ -361,17 +369,20 @@ static int mwifiex_uap_parse_tail_ies(st
 			if (cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
 						    WLAN_OUI_TYPE_MICROSOFT_WMM,
 						    (const u8 *)hdr,
-						    hdr->len + sizeof(struct ieee_types_header)))
+						    token_len))
 				break;
 			/* fall through */
 		default:
-			memcpy(gen_ie->ie_buffer + ie_len, hdr,
-			       hdr->len + sizeof(struct ieee_types_header));
-			ie_len += hdr->len + sizeof(struct ieee_types_header);
+			if (ie_len + token_len > IEEE_MAX_IE_SIZE) {
+				err = -EINVAL;
+				goto out;
+			}
+			memcpy(gen_ie->ie_buffer + ie_len, hdr, token_len);
+			ie_len += token_len;
 			break;
 		}
-		left_len -= hdr->len + sizeof(struct ieee_types_header);
-		parsed_len += hdr->len + sizeof(struct ieee_types_header);
+		left_len -= token_len;
+		parsed_len += token_len;
 	}
 
 	/* parse only WPA vendor IE from tail, WMM IE is configured by
@@ -381,15 +392,17 @@ static int mwifiex_uap_parse_tail_ies(st
 						    WLAN_OUI_TYPE_MICROSOFT_WPA,
 						    info->tail, info->tail_len);
 	if (vendorhdr) {
-		memcpy(gen_ie->ie_buffer + ie_len, vendorhdr,
-		       vendorhdr->len + sizeof(struct ieee_types_header));
-		ie_len += vendorhdr->len + sizeof(struct ieee_types_header);
+		token_len = vendorhdr->len + sizeof(struct ieee_types_header);
+		if (ie_len + token_len > IEEE_MAX_IE_SIZE) {
+			err = -EINVAL;
+			goto out;
+		}
+		memcpy(gen_ie->ie_buffer + ie_len, vendorhdr, token_len);
+		ie_len += token_len;
 	}
 
-	if (!ie_len) {
-		kfree(gen_ie);
-		return 0;
-	}
+	if (!ie_len)
+		goto out;
 
 	gen_ie->ie_index = cpu_to_le16(gen_idx);
 	gen_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_BEACON |
@@ -399,13 +412,15 @@ static int mwifiex_uap_parse_tail_ies(st
 
 	if (mwifiex_update_uap_custom_ie(priv, gen_ie, &gen_idx, NULL, NULL,
 					 NULL, NULL)) {
-		kfree(gen_ie);
-		return -1;
+		err = -EINVAL;
+		goto out;
 	}
 
 	priv->gen_idx = gen_idx;
+
+ out:
 	kfree(gen_ie);
-	return 0;
+	return err;
 }
 
 /* This function parses different IEs-head & tail IEs, beacon IEs,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/scan.c linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/scan.c
--- linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/scan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/scan.c	2019-07-28 02:28:39.000000000 -0400
@@ -1247,6 +1247,8 @@ int mwifiex_update_bss_desc_with_ie(stru
 		}
 		switch (element_id) {
 		case WLAN_EID_SSID:
+			if (element_len > IEEE80211_MAX_SSID_LEN)
+				return -EINVAL;
 			bss_entry->ssid.ssid_len = element_len;
 			memcpy(bss_entry->ssid.ssid, (current_ptr + 2),
 			       element_len);
@@ -1256,6 +1258,8 @@ int mwifiex_update_bss_desc_with_ie(stru
 			break;
 
 		case WLAN_EID_SUPP_RATES:
+			if (element_len > MWIFIEX_SUPPORTED_RATES)
+				return -EINVAL;
 			memcpy(bss_entry->data_rates, current_ptr + 2,
 			       element_len);
 			memcpy(bss_entry->supported_rates, current_ptr + 2,
@@ -1265,6 +1269,8 @@ int mwifiex_update_bss_desc_with_ie(stru
 			break;
 
 		case WLAN_EID_FH_PARAMS:
+			if (element_len + 2 < sizeof(*fh_param_set))
+				return -EINVAL;
 			fh_param_set =
 				(struct ieee_types_fh_param_set *) current_ptr;
 			memcpy(&bss_entry->phy_param_set.fh_param_set,
@@ -1273,6 +1279,8 @@ int mwifiex_update_bss_desc_with_ie(stru
 			break;
 
 		case WLAN_EID_DS_PARAMS:
+			if (element_len + 2 < sizeof(*ds_param_set))
+				return -EINVAL;
 			ds_param_set =
 				(struct ieee_types_ds_param_set *) current_ptr;
 
@@ -1284,6 +1292,8 @@ int mwifiex_update_bss_desc_with_ie(stru
 			break;
 
 		case WLAN_EID_CF_PARAMS:
+			if (element_len + 2 < sizeof(*cf_param_set))
+				return -EINVAL;
 			cf_param_set =
 				(struct ieee_types_cf_param_set *) current_ptr;
 			memcpy(&bss_entry->ss_param_set.cf_param_set,
@@ -1292,6 +1302,8 @@ int mwifiex_update_bss_desc_with_ie(stru
 			break;
 
 		case WLAN_EID_IBSS_PARAMS:
+			if (element_len + 2 < sizeof(*ibss_param_set))
+				return -EINVAL;
 			ibss_param_set =
 				(struct ieee_types_ibss_param_set *)
 				current_ptr;
@@ -1301,10 +1313,14 @@ int mwifiex_update_bss_desc_with_ie(stru
 			break;
 
 		case WLAN_EID_ERP_INFO:
+			if (!element_len)
+				return -EINVAL;
 			bss_entry->erp_flags = *(current_ptr + 2);
 			break;
 
 		case WLAN_EID_PWR_CONSTRAINT:
+			if (!element_len)
+				return -EINVAL;
 			bss_entry->local_constraint = *(current_ptr + 2);
 			bss_entry->sensed_11h = true;
 			break;
@@ -1348,15 +1364,22 @@ int mwifiex_update_bss_desc_with_ie(stru
 			vendor_ie = (struct ieee_types_vendor_specific *)
 					current_ptr;
 
-			if (!memcmp
-			    (vendor_ie->vend_hdr.oui, wpa_oui,
-			     sizeof(wpa_oui))) {
+			/* 802.11 requires at least 3-byte OUI. */
+			if (element_len < sizeof(vendor_ie->vend_hdr.oui.oui))
+				return -EINVAL;
+
+			/* Not long enough for a match? Skip it. */
+			if (element_len < sizeof(wpa_oui))
+				break;
+
+			if (!memcmp(&vendor_ie->vend_hdr.oui, wpa_oui,
+				    sizeof(wpa_oui))) {
 				bss_entry->bcn_wpa_ie =
 					(struct ieee_types_vendor_specific *)
 					current_ptr;
 				bss_entry->wpa_offset = (u16)
 					(current_ptr - bss_entry->beacon_buf);
-			} else if (!memcmp(vendor_ie->vend_hdr.oui, wmm_oui,
+			} else if (!memcmp(&vendor_ie->vend_hdr.oui, wmm_oui,
 				    sizeof(wmm_oui))) {
 				if (total_ie_len ==
 				    sizeof(struct ieee_types_wmm_parameter) ||
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
--- linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -1351,7 +1351,7 @@ mwifiex_set_gen_ie_helper(struct mwifiex
 			/* Test to see if it is a WPA IE, if not, then
 			 * it is a gen IE
 			 */
-			if (!memcmp(pvendor_ie->oui, wpa_oui,
+			if (!memcmp(&pvendor_ie->oui, wpa_oui,
 				    sizeof(wpa_oui))) {
 				/* IE is a WPA/WPA2 IE so call set_wpa function
 				 */
@@ -1361,7 +1361,7 @@ mwifiex_set_gen_ie_helper(struct mwifiex
 				goto next_ie;
 			}
 
-			if (!memcmp(pvendor_ie->oui, wps_oui,
+			if (!memcmp(&pvendor_ie->oui, wps_oui,
 				    sizeof(wps_oui))) {
 				/* Test to see if it is a WPS IE,
 				 * if so, enable wps session flag
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/wmm.c linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/wmm.c
--- linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwifiex/wmm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwifiex/wmm.c	2019-07-28 02:28:39.000000000 -0400
@@ -240,7 +240,7 @@ mwifiex_wmm_setup_queue_priorities(struc
 	mwifiex_dbg(priv->adapter, INFO,
 		    "info: WMM Parameter IE: version=%d,\t"
 		    "qos_info Parameter Set Count=%d, Reserved=%#x\n",
-		    wmm_ie->vend_hdr.version, wmm_ie->qos_info_bitmap &
+		    wmm_ie->version, wmm_ie->qos_info_bitmap &
 		    IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK,
 		    wmm_ie->reserved);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwl8k.c linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwl8k.c
--- linux-libre-5.1-gnu/drivers/net/wireless/marvell/mwl8k.c	2019-05-05 21:36:55.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/marvell/mwl8k.c	2019-07-28 13:39:44.000000000 -0400
@@ -441,6 +441,9 @@ static const struct ieee80211_rate mwl8k
 #define MWL8K_CMD_UPDATE_STADB		0x1123
 #define MWL8K_CMD_BASTREAM		0x1125
 
+#define MWL8K_LEGACY_5G_RATE_OFFSET \
+	(ARRAY_SIZE(mwl8k_rates_24) - ARRAY_SIZE(mwl8k_rates_50))
+
 static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
 {
 	u16 command = le16_to_cpu(cmd);
@@ -1016,8 +1019,9 @@ mwl8k_rxd_ap_process(void *_rxd, struct
 
 	if (rxd->channel > 14) {
 		status->band = NL80211_BAND_5GHZ;
-		if (!(status->encoding == RX_ENC_HT))
-			status->rate_idx -= 5;
+		if (!(status->encoding == RX_ENC_HT) &&
+		    status->rate_idx >= MWL8K_LEGACY_5G_RATE_OFFSET)
+			status->rate_idx -= MWL8K_LEGACY_5G_RATE_OFFSET;
 	} else {
 		status->band = NL80211_BAND_2GHZ;
 	}
@@ -1124,8 +1128,9 @@ mwl8k_rxd_sta_process(void *_rxd, struct
 
 	if (rxd->channel > 14) {
 		status->band = NL80211_BAND_5GHZ;
-		if (!(status->encoding == RX_ENC_HT))
-			status->rate_idx -= 5;
+		if (!(status->encoding == RX_ENC_HT) &&
+		    status->rate_idx >= MWL8K_LEGACY_5G_RATE_OFFSET)
+			status->rate_idx -= MWL8K_LEGACY_5G_RATE_OFFSET;
 	} else {
 		status->band = NL80211_BAND_2GHZ;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/dma.c linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/dma.c
--- linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/dma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/dma.c	2019-07-28 02:28:39.000000000 -0400
@@ -271,10 +271,11 @@ mt76_dma_tx_queue_skb_raw(struct mt76_de
 	return 0;
 }
 
-int mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q,
+int mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
 			  struct sk_buff *skb, struct mt76_wcid *wcid,
 			  struct ieee80211_sta *sta)
 {
+	struct mt76_queue *q = &dev->q_tx[qid];
 	struct mt76_queue_entry e;
 	struct mt76_txwi_cache *t;
 	struct mt76_queue_buf buf[32];
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c
--- linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c	2019-07-28 02:28:39.000000000 -0400
@@ -23,7 +23,7 @@ mt7603_update_beacon_iter(void *priv, u8
 	if (!skb)
 		return;
 
-	mt76_dma_tx_queue_skb(&dev->mt76, &dev->mt76.q_tx[MT_TXQ_BEACON], skb,
+	mt76_dma_tx_queue_skb(&dev->mt76, MT_TXQ_BEACON, skb,
 			      &mvif->sta.wcid, NULL);
 
 	spin_lock_bh(&dev->ps_lock);
@@ -118,8 +118,8 @@ void mt7603_pre_tbtt_tasklet(unsigned lo
 		struct ieee80211_vif *vif = info->control.vif;
 		struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
 
-		mt76_dma_tx_queue_skb(&dev->mt76, q, skb, &mvif->sta.wcid,
-				      NULL);
+		mt76_dma_tx_queue_skb(&dev->mt76, MT_TXQ_CAB, skb,
+				      &mvif->sta.wcid, NULL);
 	}
 	mt76_queue_kick(dev, q);
 	spin_unlock_bh(&q->lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/mt76.h linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/mt76.h
--- linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/mt76.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/mt76.h	2019-07-28 02:28:39.000000000 -0400
@@ -156,7 +156,7 @@ struct mt76_queue_ops {
 		       struct mt76_queue_buf *buf, int nbufs, u32 info,
 		       struct sk_buff *skb, void *txwi);
 
-	int (*tx_queue_skb)(struct mt76_dev *dev, struct mt76_queue *q,
+	int (*tx_queue_skb)(struct mt76_dev *dev, enum mt76_txq_id qid,
 			    struct sk_buff *skb, struct mt76_wcid *wcid,
 			    struct ieee80211_sta *sta);
 
@@ -645,7 +645,7 @@ static inline struct mt76_tx_cb *mt76_tx
 	return ((void *) IEEE80211_SKB_CB(skb)->status.status_driver_data);
 }
 
-int mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q,
+int mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
 			  struct sk_buff *skb, struct mt76_wcid *wcid,
 			  struct ieee80211_sta *sta);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
--- linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c	2019-07-28 02:28:39.000000000 -0400
@@ -146,8 +146,8 @@ static void mt76x02_pre_tbtt_tasklet(uns
 		struct ieee80211_vif *vif = info->control.vif;
 		struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
 
-		mt76_dma_tx_queue_skb(&dev->mt76, q, skb, &mvif->group_wcid,
-				      NULL);
+		mt76_dma_tx_queue_skb(&dev->mt76, MT_TXQ_PSD, skb,
+				      &mvif->group_wcid, NULL);
 	}
 	spin_unlock_bh(&q->lock);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/tx.c linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/tx.c
--- linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/tx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/tx.c	2019-07-28 02:28:39.000000000 -0400
@@ -286,7 +286,7 @@ mt76_tx(struct mt76_dev *dev, struct iee
 	q = &dev->q_tx[qid];
 
 	spin_lock_bh(&q->lock);
-	dev->queue_ops->tx_queue_skb(dev, q, skb, wcid, sta);
+	dev->queue_ops->tx_queue_skb(dev, qid, skb, wcid, sta);
 	dev->queue_ops->kick(dev, q);
 
 	if (q->queued > q->ndesc - 8 && !q->stopped) {
@@ -327,7 +327,6 @@ mt76_queue_ps_skb(struct mt76_dev *dev,
 {
 	struct mt76_wcid *wcid = (struct mt76_wcid *) sta->drv_priv;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct mt76_queue *hwq = &dev->q_tx[MT_TXQ_PSD];
 
 	info->control.flags |= IEEE80211_TX_CTRL_PS_RESPONSE;
 	if (last)
@@ -335,7 +334,7 @@ mt76_queue_ps_skb(struct mt76_dev *dev,
 			       IEEE80211_TX_CTL_REQ_TX_STATUS;
 
 	mt76_skb_set_moredata(skb, !last);
-	dev->queue_ops->tx_queue_skb(dev, hwq, skb, wcid, sta);
+	dev->queue_ops->tx_queue_skb(dev, MT_TXQ_PSD, skb, wcid, sta);
 }
 
 void
@@ -390,6 +389,7 @@ mt76_txq_send_burst(struct mt76_dev *dev
 		    struct mt76_txq *mtxq, bool *empty)
 {
 	struct ieee80211_txq *txq = mtxq_to_txq(mtxq);
+	enum mt76_txq_id qid = mt76_txq_get_qid(txq);
 	struct ieee80211_tx_info *info;
 	struct mt76_wcid *wcid = mtxq->wcid;
 	struct sk_buff *skb;
@@ -423,7 +423,7 @@ mt76_txq_send_burst(struct mt76_dev *dev
 	if (ampdu)
 		mt76_check_agg_ssn(mtxq, skb);
 
-	idx = dev->queue_ops->tx_queue_skb(dev, hwq, skb, wcid, txq->sta);
+	idx = dev->queue_ops->tx_queue_skb(dev, qid, skb, wcid, txq->sta);
 
 	if (idx < 0)
 		return idx;
@@ -458,7 +458,7 @@ mt76_txq_send_burst(struct mt76_dev *dev
 		if (cur_ampdu)
 			mt76_check_agg_ssn(mtxq, skb);
 
-		idx = dev->queue_ops->tx_queue_skb(dev, hwq, skb, wcid,
+		idx = dev->queue_ops->tx_queue_skb(dev, qid, skb, wcid,
 						   txq->sta);
 		if (idx < 0)
 			return idx;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/usb.c linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/usb.c
--- linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt76/usb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt76/usb.c	2019-07-28 02:28:39.000000000 -0400
@@ -726,10 +726,11 @@ mt76u_tx_build_sg(struct mt76_dev *dev,
 }
 
 static int
-mt76u_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q,
+mt76u_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
 		   struct sk_buff *skb, struct mt76_wcid *wcid,
 		   struct ieee80211_sta *sta)
 {
+	struct mt76_queue *q = &dev->q_tx[qid];
 	struct mt76u_buf *buf;
 	u16 idx = q->tail;
 	int err;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt7601u/dma.c linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt7601u/dma.c
--- linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt7601u/dma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt7601u/dma.c	2019-07-28 02:28:39.000000000 -0400
@@ -193,10 +193,23 @@ static void mt7601u_complete_rx(struct u
 	struct mt7601u_rx_queue *q = &dev->rx_q;
 	unsigned long flags;
 
-	spin_lock_irqsave(&dev->rx_lock, flags);
+	/* do no schedule rx tasklet if urb has been unlinked
+	 * or the device has been removed
+	 */
+	switch (urb->status) {
+	case -ECONNRESET:
+	case -ESHUTDOWN:
+	case -ENOENT:
+		return;
+	default:
+		dev_err_ratelimited(dev->dev, "rx urb failed: %d\n",
+				    urb->status);
+		/* fall through */
+	case 0:
+		break;
+	}
 
-	if (mt7601u_urb_has_error(urb))
-		dev_err(dev->dev, "Error: RX urb failed:%d\n", urb->status);
+	spin_lock_irqsave(&dev->rx_lock, flags);
 	if (WARN_ONCE(q->e[q->end].urb != urb, "RX urb mismatch"))
 		goto out;
 
@@ -228,14 +241,25 @@ static void mt7601u_complete_tx(struct u
 	struct sk_buff *skb;
 	unsigned long flags;
 
-	spin_lock_irqsave(&dev->tx_lock, flags);
+	switch (urb->status) {
+	case -ECONNRESET:
+	case -ESHUTDOWN:
+	case -ENOENT:
+		return;
+	default:
+		dev_err_ratelimited(dev->dev, "tx urb failed: %d\n",
+				    urb->status);
+		/* fall through */
+	case 0:
+		break;
+	}
 
-	if (mt7601u_urb_has_error(urb))
-		dev_err(dev->dev, "Error: TX urb failed:%d\n", urb->status);
+	spin_lock_irqsave(&dev->tx_lock, flags);
 	if (WARN_ONCE(q->e[q->start].urb != urb, "TX urb mismatch"))
 		goto out;
 
 	skb = q->e[q->start].skb;
+	q->e[q->start].skb = NULL;
 	trace_mt_tx_dma_done(dev, skb);
 
 	__skb_queue_tail(&dev->tx_skb_done, skb);
@@ -363,19 +387,9 @@ int mt7601u_dma_enqueue_tx(struct mt7601
 static void mt7601u_kill_rx(struct mt7601u_dev *dev)
 {
 	int i;
-	unsigned long flags;
 
-	spin_lock_irqsave(&dev->rx_lock, flags);
-
-	for (i = 0; i < dev->rx_q.entries; i++) {
-		int next = dev->rx_q.end;
-
-		spin_unlock_irqrestore(&dev->rx_lock, flags);
-		usb_poison_urb(dev->rx_q.e[next].urb);
-		spin_lock_irqsave(&dev->rx_lock, flags);
-	}
-
-	spin_unlock_irqrestore(&dev->rx_lock, flags);
+	for (i = 0; i < dev->rx_q.entries; i++)
+		usb_poison_urb(dev->rx_q.e[i].urb);
 }
 
 static int mt7601u_submit_rx_buf(struct mt7601u_dev *dev,
@@ -445,10 +459,10 @@ static void mt7601u_free_tx_queue(struct
 {
 	int i;
 
-	WARN_ON(q->used);
-
 	for (i = 0; i < q->entries; i++)  {
 		usb_poison_urb(q->e[i].urb);
+		if (q->e[i].skb)
+			mt7601u_tx_status(q->dev, q->e[i].skb);
 		usb_free_urb(q->e[i].urb);
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt7601u/tx.c linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt7601u/tx.c
--- linux-libre-5.1-gnu/drivers/net/wireless/mediatek/mt7601u/tx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/mediatek/mt7601u/tx.c	2019-07-28 02:28:39.000000000 -0400
@@ -117,9 +117,9 @@ void mt7601u_tx_status(struct mt7601u_de
 	info->status.rates[0].idx = -1;
 	info->flags |= IEEE80211_TX_STAT_ACK;
 
-	spin_lock(&dev->mac_lock);
+	spin_lock_bh(&dev->mac_lock);
 	ieee80211_tx_status(dev->hw, skb);
-	spin_unlock(&dev->mac_lock);
+	spin_unlock_bh(&dev->mac_lock);
 }
 
 static int mt7601u_skb_rooms(struct mt7601u_dev *dev, struct sk_buff *skb)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c linux-libre-5.1.21-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
--- linux-libre-5.1-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c	2019-07-28 02:28:39.000000000 -0400
@@ -367,15 +367,10 @@ static void rt2x00usb_interrupt_rxdone(s
 	struct queue_entry *entry = (struct queue_entry *)urb->context;
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
 
-	if (!test_and_clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
+	if (!test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
 		return;
 
 	/*
-	 * Report the frame as DMA done
-	 */
-	rt2x00lib_dmadone(entry);
-
-	/*
 	 * Check if the received data is simply too small
 	 * to be actually valid, or if the urb is signaling
 	 * a problem.
@@ -384,6 +379,11 @@ static void rt2x00usb_interrupt_rxdone(s
 		set_bit(ENTRY_DATA_IO_FAILED, &entry->flags);
 
 	/*
+	 * Report the frame as DMA done
+	 */
+	rt2x00lib_dmadone(entry);
+
+	/*
 	 * Schedule the delayed work for reading the RX status
 	 * from the device.
 	 */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/base.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/base.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/base.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/base.c	2019-07-28 02:28:39.000000000 -0400
@@ -448,6 +448,11 @@ static void _rtl_init_deferred_work(stru
 	/* <2> work queue */
 	rtlpriv->works.hw = hw;
 	rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
+	if (unlikely(!rtlpriv->works.rtl_wq)) {
+		pr_err("Failed to allocate work queue\n");
+		return;
+	}
+
 	INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
 			  (void *)rtl_watchdog_wq_callback);
 	INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c	2019-07-28 02:28:39.000000000 -0400
@@ -600,6 +600,8 @@ void rtl88e_set_fw_rsvdpagepkt(struct ie
 		      u1rsvdpageloc, 3);
 
 	skb = dev_alloc_skb(totalpacketlen);
+	if (!skb)
+		return;
 	skb_put_data(skb, &reserved_page_packet, totalpacketlen);
 
 	rtstatus = rtl_cmd_send_packet(hw, skb);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192c/fw_common.c	2019-07-28 02:28:39.000000000 -0400
@@ -623,6 +623,8 @@ void rtl92c_set_fw_rsvdpagepkt(struct ie
 		      u1rsvdpageloc, 3);
 
 	skb = dev_alloc_skb(totalpacketlen);
+	if (!skb)
+		return;
 	skb_put_data(skb, &reserved_page_packet, totalpacketlen);
 
 	if (cmd_send_packet)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/fw.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/fw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/fw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/fw.c	2019-07-28 02:28:39.000000000 -0400
@@ -744,6 +744,8 @@ void rtl92ee_set_fw_rsvdpagepkt(struct i
 		      u1rsvdpageloc, 3);
 
 	skb = dev_alloc_skb(totalpacketlen);
+	if (!skb)
+		return;
 	skb_put_data(skb, &reserved_page_packet, totalpacketlen);
 
 	rtstatus = rtl_cmd_send_packet(hw, skb);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/fw.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/fw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/fw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/fw.c	2019-07-28 02:28:39.000000000 -0400
@@ -448,6 +448,8 @@ void rtl8723e_set_fw_rsvdpagepkt(struct
 		      u1rsvdpageloc, 3);
 
 	skb = dev_alloc_skb(totalpacketlen);
+	if (!skb)
+		return;
 	skb_put_data(skb, &reserved_page_packet, totalpacketlen);
 
 	rtstatus = rtl_cmd_send_packet(hw, skb);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/hw.c	2019-07-28 02:28:39.000000000 -0400
@@ -1675,6 +1675,7 @@ static void _rtl8723e_read_adapter_info(
 					rtlhal->oem_id = RT_CID_819X_LENOVO;
 					break;
 				}
+				break;
 			case 0x1025:
 				rtlhal->oem_id = RT_CID_819X_ACER;
 				break;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/fw.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/fw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/fw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8723be/fw.c	2019-07-28 02:28:39.000000000 -0400
@@ -562,6 +562,8 @@ void rtl8723be_set_fw_rsvdpagepkt(struct
 		      u1rsvdpageloc, sizeof(u1rsvdpageloc));
 
 	skb = dev_alloc_skb(totalpacketlen);
+	if (!skb)
+		return;
 	skb_put_data(skb, &reserved_page_packet, totalpacketlen);
 
 	rtstatus = rtl_cmd_send_packet(hw, skb);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/fw.c	2019-07-28 02:28:39.000000000 -0400
@@ -1623,6 +1623,8 @@ out:
 		      &reserved_page_packet_8812[0], totalpacketlen);
 
 	skb = dev_alloc_skb(totalpacketlen);
+	if (!skb)
+		return;
 	skb_put_data(skb, &reserved_page_packet_8812, totalpacketlen);
 
 	rtstatus = rtl_cmd_send_packet(hw, skb);
@@ -1759,6 +1761,8 @@ out:
 		      &reserved_page_packet_8821[0], totalpacketlen);
 
 	skb = dev_alloc_skb(totalpacketlen);
+	if (!skb)
+		return;
 	skb_put_data(skb, &reserved_page_packet_8821, totalpacketlen);
 
 	rtstatus = rtl_cmd_send_packet(hw, skb);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c
--- linux-libre-5.1-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c	2019-07-28 02:28:39.000000000 -0400
@@ -1064,13 +1064,13 @@ int rtl_usb_probe(struct usb_interface *
 	rtlpriv->cfg->ops->read_eeprom_info(hw);
 	err = _rtl_usb_init(hw);
 	if (err)
-		goto error_out;
+		goto error_out2;
 	rtl_usb_init_sw(hw);
 	/* Init mac80211 sw */
 	err = rtl_init_core(hw);
 	if (err) {
 		pr_err("Can't allocate sw for mac80211\n");
-		goto error_out;
+		goto error_out2;
 	}
 	if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
 		pr_err("Can't init_sw_vars\n");
@@ -1091,6 +1091,7 @@ int rtl_usb_probe(struct usb_interface *
 
 error_out:
 	rtl_deinit_core(hw);
+error_out2:
 	_rtl_usb_io_handler_release(hw);
 	usb_put_dev(udev);
 	complete(&rtlpriv->firmware_loading_complete);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/rsi/rsi_91x_mac80211.c linux-libre-5.1.21-gnu/drivers/net/wireless/rsi/rsi_91x_mac80211.c
--- linux-libre-5.1-gnu/drivers/net/wireless/rsi/rsi_91x_mac80211.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/rsi/rsi_91x_mac80211.c	2019-07-28 02:28:39.000000000 -0400
@@ -188,27 +188,27 @@ bool rsi_is_cipher_wep(struct rsi_common
  * @adapter: Pointer to the adapter structure.
  * @band: Operating band to be set.
  *
- * Return: None.
+ * Return: int - 0 on success, negative error on failure.
  */
-static void rsi_register_rates_channels(struct rsi_hw *adapter, int band)
+static int rsi_register_rates_channels(struct rsi_hw *adapter, int band)
 {
 	struct ieee80211_supported_band *sbands = &adapter->sbands[band];
 	void *channels = NULL;
 
 	if (band == NL80211_BAND_2GHZ) {
-		channels = kmalloc(sizeof(rsi_2ghz_channels), GFP_KERNEL);
-		memcpy(channels,
-		       rsi_2ghz_channels,
-		       sizeof(rsi_2ghz_channels));
+		channels = kmemdup(rsi_2ghz_channels, sizeof(rsi_2ghz_channels),
+				   GFP_KERNEL);
+		if (!channels)
+			return -ENOMEM;
 		sbands->band = NL80211_BAND_2GHZ;
 		sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels);
 		sbands->bitrates = rsi_rates;
 		sbands->n_bitrates = ARRAY_SIZE(rsi_rates);
 	} else {
-		channels = kmalloc(sizeof(rsi_5ghz_channels), GFP_KERNEL);
-		memcpy(channels,
-		       rsi_5ghz_channels,
-		       sizeof(rsi_5ghz_channels));
+		channels = kmemdup(rsi_5ghz_channels, sizeof(rsi_5ghz_channels),
+				   GFP_KERNEL);
+		if (!channels)
+			return -ENOMEM;
 		sbands->band = NL80211_BAND_5GHZ;
 		sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels);
 		sbands->bitrates = &rsi_rates[4];
@@ -227,6 +227,7 @@ static void rsi_register_rates_channels(
 	sbands->ht_cap.mcs.rx_mask[0] = 0xff;
 	sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 	/* sbands->ht_cap.mcs.rx_highest = 0x82; */
+	return 0;
 }
 
 static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw,
@@ -2064,11 +2065,16 @@ int rsi_mac80211_attach(struct rsi_commo
 	wiphy->available_antennas_rx = 1;
 	wiphy->available_antennas_tx = 1;
 
-	rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ);
+	status = rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ);
+	if (status)
+		return status;
 	wiphy->bands[NL80211_BAND_2GHZ] =
 		&adapter->sbands[NL80211_BAND_2GHZ];
 	if (common->num_supp_bands > 1) {
-		rsi_register_rates_channels(adapter, NL80211_BAND_5GHZ);
+		status = rsi_register_rates_channels(adapter,
+						     NL80211_BAND_5GHZ);
+		if (status)
+			return status;
 		wiphy->bands[NL80211_BAND_5GHZ] =
 			&adapter->sbands[NL80211_BAND_5GHZ];
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/net/wireless/st/cw1200/main.c linux-libre-5.1.21-gnu/drivers/net/wireless/st/cw1200/main.c
--- linux-libre-5.1-gnu/drivers/net/wireless/st/cw1200/main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/net/wireless/st/cw1200/main.c	2019-07-28 02:28:39.000000000 -0400
@@ -345,6 +345,11 @@ static struct ieee80211_hw *cw1200_init_
 	mutex_init(&priv->wsm_cmd_mux);
 	mutex_init(&priv->conf_mutex);
 	priv->workqueue = create_singlethread_workqueue("cw1200_wq");
+	if (!priv->workqueue) {
+		ieee80211_free_hw(hw);
+		return NULL;
+	}
+
 	sema_init(&priv->scan.lock, 1);
 	INIT_WORK(&priv->scan.work, cw1200_scan_work);
 	INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/bus.c linux-libre-5.1.21-gnu/drivers/nvdimm/bus.c
--- linux-libre-5.1-gnu/drivers/nvdimm/bus.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/bus.c	2019-07-28 02:28:39.000000000 -0400
@@ -642,7 +642,7 @@ static struct attribute *nd_device_attri
 	NULL,
 };
 
-/**
+/*
  * nd_device_attribute_group - generic attributes for all devices on an nd bus
  */
 struct attribute_group nd_device_attribute_group = {
@@ -671,7 +671,7 @@ static umode_t nd_numa_attr_visible(stru
 	return a->mode;
 }
 
-/**
+/*
  * nd_numa_attribute_group - NUMA attributes for all devices on an nd bus
  */
 struct attribute_group nd_numa_attribute_group = {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/dax_devs.c linux-libre-5.1.21-gnu/drivers/nvdimm/dax_devs.c
--- linux-libre-5.1-gnu/drivers/nvdimm/dax_devs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/dax_devs.c	2019-07-28 02:28:39.000000000 -0400
@@ -126,7 +126,7 @@ int nd_dax_probe(struct device *dev, str
 	nvdimm_bus_unlock(&ndns->dev);
 	if (!dax_dev)
 		return -ENOMEM;
-	pfn_sb = devm_kzalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
+	pfn_sb = devm_kmalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
 	nd_pfn->pfn_sb = pfn_sb;
 	rc = nd_pfn_validate(nd_pfn, DAX_SIG);
 	dev_dbg(dev, "dax: %s\n", rc == 0 ? dev_name(dax_dev) : "<none>");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/label.c linux-libre-5.1.21-gnu/drivers/nvdimm/label.c
--- linux-libre-5.1-gnu/drivers/nvdimm/label.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/label.c	2019-07-28 02:28:39.000000000 -0400
@@ -25,6 +25,8 @@ static guid_t nvdimm_btt2_guid;
 static guid_t nvdimm_pfn_guid;
 static guid_t nvdimm_dax_guid;
 
+static const char NSINDEX_SIGNATURE[] = "NAMESPACE_INDEX\0";
+
 static u32 best_seq(u32 a, u32 b)
 {
 	a &= NSINDEX_SEQ_MASK;
@@ -756,6 +758,17 @@ static const guid_t *to_abstraction_guid
 		return &guid_null;
 }
 
+static void reap_victim(struct nd_mapping *nd_mapping,
+		struct nd_label_ent *victim)
+{
+	struct nvdimm_drvdata *ndd = to_ndd(nd_mapping);
+	u32 slot = to_slot(ndd, victim->label);
+
+	dev_dbg(ndd->dev, "free: %d\n", slot);
+	nd_label_free_slot(ndd, slot);
+	victim->label = NULL;
+}
+
 static int __pmem_label_update(struct nd_region *nd_region,
 		struct nd_mapping *nd_mapping, struct nd_namespace_pmem *nspm,
 		int pos, unsigned long flags)
@@ -763,9 +776,9 @@ static int __pmem_label_update(struct nd
 	struct nd_namespace_common *ndns = &nspm->nsio.common;
 	struct nd_interleave_set *nd_set = nd_region->nd_set;
 	struct nvdimm_drvdata *ndd = to_ndd(nd_mapping);
-	struct nd_label_ent *label_ent, *victim = NULL;
 	struct nd_namespace_label *nd_label;
 	struct nd_namespace_index *nsindex;
+	struct nd_label_ent *label_ent;
 	struct nd_label_id label_id;
 	struct resource *res;
 	unsigned long *free;
@@ -834,18 +847,10 @@ static int __pmem_label_update(struct nd
 	list_for_each_entry(label_ent, &nd_mapping->labels, list) {
 		if (!label_ent->label)
 			continue;
-		if (memcmp(nspm->uuid, label_ent->label->uuid,
-					NSLABEL_UUID_LEN) != 0)
-			continue;
-		victim = label_ent;
-		list_move_tail(&victim->list, &nd_mapping->labels);
-		break;
-	}
-	if (victim) {
-		dev_dbg(ndd->dev, "free: %d\n", slot);
-		slot = to_slot(ndd, victim->label);
-		nd_label_free_slot(ndd, slot);
-		victim->label = NULL;
+		if (test_and_clear_bit(ND_LABEL_REAP, &label_ent->flags)
+				|| memcmp(nspm->uuid, label_ent->label->uuid,
+					NSLABEL_UUID_LEN) == 0)
+			reap_victim(nd_mapping, label_ent);
 	}
 
 	/* update index */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/label.h linux-libre-5.1.21-gnu/drivers/nvdimm/label.h
--- linux-libre-5.1-gnu/drivers/nvdimm/label.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/label.h	2019-07-28 02:28:39.000000000 -0400
@@ -38,8 +38,6 @@ enum {
 	ND_NSINDEX_INIT = 0x1,
 };
 
-static const char NSINDEX_SIGNATURE[] = "NAMESPACE_INDEX\0";
-
 /**
  * struct nd_namespace_index - label set superblock
  * @sig: NAMESPACE_INDEX\0
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/namespace_devs.c linux-libre-5.1.21-gnu/drivers/nvdimm/namespace_devs.c
--- linux-libre-5.1-gnu/drivers/nvdimm/namespace_devs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/namespace_devs.c	2019-07-28 02:28:39.000000000 -0400
@@ -1247,12 +1247,27 @@ static int namespace_update_uuid(struct
 	for (i = 0; i < nd_region->ndr_mappings; i++) {
 		struct nd_mapping *nd_mapping = &nd_region->mapping[i];
 		struct nvdimm_drvdata *ndd = to_ndd(nd_mapping);
+		struct nd_label_ent *label_ent;
 		struct resource *res;
 
 		for_each_dpa_resource(ndd, res)
 			if (strcmp(res->name, old_label_id.id) == 0)
 				sprintf((void *) res->name, "%s",
 						new_label_id.id);
+
+		mutex_lock(&nd_mapping->lock);
+		list_for_each_entry(label_ent, &nd_mapping->labels, list) {
+			struct nd_namespace_label *nd_label = label_ent->label;
+			struct nd_label_id label_id;
+
+			if (!nd_label)
+				continue;
+			nd_label_gen_id(&label_id, nd_label->uuid,
+					__le32_to_cpu(nd_label->flags));
+			if (strcmp(old_label_id.id, label_id.id) == 0)
+				set_bit(ND_LABEL_REAP, &label_ent->flags);
+		}
+		mutex_unlock(&nd_mapping->lock);
 	}
 	kfree(*old_uuid);
  out:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/nd.h linux-libre-5.1.21-gnu/drivers/nvdimm/nd.h
--- linux-libre-5.1-gnu/drivers/nvdimm/nd.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/nd.h	2019-07-28 02:28:39.000000000 -0400
@@ -113,8 +113,12 @@ struct nd_percpu_lane {
 	spinlock_t lock;
 };
 
+enum nd_label_flags {
+	ND_LABEL_REAP,
+};
 struct nd_label_ent {
 	struct list_head list;
+	unsigned long flags;
 	struct nd_namespace_label *label;
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/pfn_devs.c linux-libre-5.1.21-gnu/drivers/nvdimm/pfn_devs.c
--- linux-libre-5.1-gnu/drivers/nvdimm/pfn_devs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/pfn_devs.c	2019-07-28 02:28:39.000000000 -0400
@@ -420,6 +420,15 @@ static int nd_pfn_clear_memmap_errors(st
 	return 0;
 }
 
+/**
+ * nd_pfn_validate - read and validate info-block
+ * @nd_pfn: fsdax namespace runtime state / properties
+ * @sig: 'devdax' or 'fsdax' signature
+ *
+ * Upon return the info-block buffer contents (->pfn_sb) are
+ * indeterminate when validation fails, and a coherent info-block
+ * otherwise.
+ */
 int nd_pfn_validate(struct nd_pfn *nd_pfn, const char *sig)
 {
 	u64 checksum, offset;
@@ -565,7 +574,7 @@ int nd_pfn_probe(struct device *dev, str
 	nvdimm_bus_unlock(&ndns->dev);
 	if (!pfn_dev)
 		return -ENOMEM;
-	pfn_sb = devm_kzalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
+	pfn_sb = devm_kmalloc(dev, sizeof(*pfn_sb), GFP_KERNEL);
 	nd_pfn = to_nd_pfn(pfn_dev);
 	nd_pfn->pfn_sb = pfn_sb;
 	rc = nd_pfn_validate(nd_pfn, PFN_SIG);
@@ -702,7 +711,7 @@ static int nd_pfn_init(struct nd_pfn *nd
 	u64 checksum;
 	int rc;
 
-	pfn_sb = devm_kzalloc(&nd_pfn->dev, sizeof(*pfn_sb), GFP_KERNEL);
+	pfn_sb = devm_kmalloc(&nd_pfn->dev, sizeof(*pfn_sb), GFP_KERNEL);
 	if (!pfn_sb)
 		return -ENOMEM;
 
@@ -711,11 +720,14 @@ static int nd_pfn_init(struct nd_pfn *nd
 		sig = DAX_SIG;
 	else
 		sig = PFN_SIG;
+
 	rc = nd_pfn_validate(nd_pfn, sig);
 	if (rc != -ENODEV)
 		return rc;
 
 	/* no info block, do init */;
+	memset(pfn_sb, 0, sizeof(*pfn_sb));
+
 	nd_region = to_nd_region(nd_pfn->dev.parent);
 	if (nd_region->ro) {
 		dev_info(&nd_pfn->dev,
@@ -768,7 +780,7 @@ static int nd_pfn_init(struct nd_pfn *nd
 	memcpy(pfn_sb->uuid, nd_pfn->uuid, 16);
 	memcpy(pfn_sb->parent_uuid, nd_dev_to_uuid(&ndns->dev), 16);
 	pfn_sb->version_major = cpu_to_le16(1);
-	pfn_sb->version_minor = cpu_to_le16(2);
+	pfn_sb->version_minor = cpu_to_le16(3);
 	pfn_sb->start_pad = cpu_to_le32(start_pad);
 	pfn_sb->end_trunc = cpu_to_le32(end_trunc);
 	pfn_sb->align = cpu_to_le32(nd_pfn->align);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/pfn.h linux-libre-5.1.21-gnu/drivers/nvdimm/pfn.h
--- linux-libre-5.1-gnu/drivers/nvdimm/pfn.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/pfn.h	2019-07-28 02:28:39.000000000 -0400
@@ -36,6 +36,7 @@ struct nd_pfn_sb {
 	__le32 end_trunc;
 	/* minor-version-2 record the base alignment of the mapping */
 	__le32 align;
+	/* minor-version-3 guarantee the padding and flags are zero */
 	u8 padding[4000];
 	__le64 checksum;
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvdimm/pmem.c linux-libre-5.1.21-gnu/drivers/nvdimm/pmem.c
--- linux-libre-5.1-gnu/drivers/nvdimm/pmem.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvdimm/pmem.c	2019-07-28 02:28:39.000000000 -0400
@@ -281,20 +281,27 @@ static long pmem_dax_direct_access(struc
 	return __pmem_direct_access(pmem, pgoff, nr_pages, kaddr, pfn);
 }
 
+/*
+ * Use the 'no check' versions of copy_from_iter_flushcache() and
+ * copy_to_iter_mcsafe() to bypass HARDENED_USERCOPY overhead. Bounds
+ * checking, both file offset and device offset, is handled by
+ * dax_iomap_actor()
+ */
 static size_t pmem_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
 		void *addr, size_t bytes, struct iov_iter *i)
 {
-	return copy_from_iter_flushcache(addr, bytes, i);
+	return _copy_from_iter_flushcache(addr, bytes, i);
 }
 
 static size_t pmem_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff,
 		void *addr, size_t bytes, struct iov_iter *i)
 {
-	return copy_to_iter_mcsafe(addr, bytes, i);
+	return _copy_to_iter_mcsafe(addr, bytes, i);
 }
 
 static const struct dax_operations pmem_dax_ops = {
 	.direct_access = pmem_dax_direct_access,
+	.dax_supported = generic_fsdax_supported,
 	.copy_from_iter = pmem_copy_from_iter,
 	.copy_to_iter = pmem_copy_to_iter,
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvme/host/core.c linux-libre-5.1.21-gnu/drivers/nvme/host/core.c
--- linux-libre-5.1-gnu/drivers/nvme/host/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvme/host/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -1362,9 +1362,14 @@ static struct nvme_ns *nvme_get_ns_from_
 {
 #ifdef CONFIG_NVME_MULTIPATH
 	if (disk->fops == &nvme_ns_head_ops) {
+		struct nvme_ns *ns;
+
 		*head = disk->private_data;
 		*srcu_idx = srcu_read_lock(&(*head)->srcu);
-		return nvme_find_path(*head);
+		ns = nvme_find_path(*head);
+		if (!ns)
+			srcu_read_unlock(&(*head)->srcu, *srcu_idx);
+		return ns;
 	}
 #endif
 	*head = NULL;
@@ -1378,42 +1383,56 @@ static void nvme_put_ns_from_disk(struct
 		srcu_read_unlock(&head->srcu, idx);
 }
 
-static int nvme_ns_ioctl(struct nvme_ns *ns, unsigned cmd, unsigned long arg)
+static int nvme_ioctl(struct block_device *bdev, fmode_t mode,
+		unsigned int cmd, unsigned long arg)
 {
+	struct nvme_ns_head *head = NULL;
+	void __user *argp = (void __user *)arg;
+	struct nvme_ns *ns;
+	int srcu_idx, ret;
+
+	ns = nvme_get_ns_from_disk(bdev->bd_disk, &head, &srcu_idx);
+	if (unlikely(!ns))
+		return -EWOULDBLOCK;
+
+	/*
+	 * Handle ioctls that apply to the controller instead of the namespace
+	 * seperately and drop the ns SRCU reference early.  This avoids a
+	 * deadlock when deleting namespaces using the passthrough interface.
+	 */
+	if (cmd == NVME_IOCTL_ADMIN_CMD || is_sed_ioctl(cmd)) {
+		struct nvme_ctrl *ctrl = ns->ctrl;
+
+		nvme_get_ctrl(ns->ctrl);
+		nvme_put_ns_from_disk(head, srcu_idx);
+
+		if (cmd == NVME_IOCTL_ADMIN_CMD)
+			ret = nvme_user_cmd(ctrl, NULL, argp);
+		else
+			ret = sed_ioctl(ctrl->opal_dev, cmd, argp);
+
+		nvme_put_ctrl(ctrl);
+		return ret;
+	}
+
 	switch (cmd) {
 	case NVME_IOCTL_ID:
 		force_successful_syscall_return();
-		return ns->head->ns_id;
-	case NVME_IOCTL_ADMIN_CMD:
-		return nvme_user_cmd(ns->ctrl, NULL, (void __user *)arg);
+		ret = ns->head->ns_id;
+		break;
 	case NVME_IOCTL_IO_CMD:
-		return nvme_user_cmd(ns->ctrl, ns, (void __user *)arg);
+		ret = nvme_user_cmd(ns->ctrl, ns, argp);
+		break;
 	case NVME_IOCTL_SUBMIT_IO:
-		return nvme_submit_io(ns, (void __user *)arg);
+		ret = nvme_submit_io(ns, argp);
+		break;
 	default:
-#ifdef CONFIG_NVM
 		if (ns->ndev)
-			return nvme_nvm_ioctl(ns, cmd, arg);
-#endif
-		if (is_sed_ioctl(cmd))
-			return sed_ioctl(ns->ctrl->opal_dev, cmd,
-					 (void __user *) arg);
-		return -ENOTTY;
+			ret = nvme_nvm_ioctl(ns, cmd, arg);
+		else
+			ret = -ENOTTY;
 	}
-}
 
-static int nvme_ioctl(struct block_device *bdev, fmode_t mode,
-		unsigned int cmd, unsigned long arg)
-{
-	struct nvme_ns_head *head = NULL;
-	struct nvme_ns *ns;
-	int srcu_idx, ret;
-
-	ns = nvme_get_ns_from_disk(bdev->bd_disk, &head, &srcu_idx);
-	if (unlikely(!ns))
-		ret = -EWOULDBLOCK;
-	else
-		ret = nvme_ns_ioctl(ns, cmd, arg);
 	nvme_put_ns_from_disk(head, srcu_idx);
 	return ret;
 }
@@ -1591,6 +1610,10 @@ static void nvme_update_disk_info(struct
 	sector_t capacity = le64_to_cpup(&id->nsze) << (ns->lba_shift - 9);
 	unsigned short bs = 1 << ns->lba_shift;
 
+	if (ns->lba_shift > PAGE_SHIFT) {
+		/* unsupported block size, set capacity to 0 later */
+		bs = (1 << 9);
+	}
 	blk_mq_freeze_queue(disk->queue);
 	blk_integrity_unregister(disk);
 
@@ -1601,7 +1624,8 @@ static void nvme_update_disk_info(struct
 	if (ns->ms && !ns->ext &&
 	    (ns->ctrl->ops->flags & NVME_F_METADATA_SUPPORTED))
 		nvme_init_integrity(disk, ns->ms, ns->pi_type);
-	if (ns->ms && !nvme_ns_has_pi(ns) && !blk_get_integrity(disk))
+	if ((ns->ms && !nvme_ns_has_pi(ns) && !blk_get_integrity(disk)) ||
+	    ns->lba_shift > PAGE_SHIFT)
 		capacity = 0;
 
 	set_capacity(disk, capacity);
@@ -3317,6 +3341,14 @@ static void nvme_ns_remove(struct nvme_n
 		return;
 
 	nvme_fault_inject_fini(ns);
+
+	mutex_lock(&ns->ctrl->subsys->lock);
+	list_del_rcu(&ns->siblings);
+	mutex_unlock(&ns->ctrl->subsys->lock);
+	synchronize_rcu(); /* guarantee not available in head->list */
+	nvme_mpath_clear_current_path(ns);
+	synchronize_srcu(&ns->head->srcu); /* wait for concurrent submissions */
+
 	if (ns->disk && ns->disk->flags & GENHD_FL_UP) {
 		del_gendisk(ns->disk);
 		blk_cleanup_queue(ns->queue);
@@ -3324,16 +3356,10 @@ static void nvme_ns_remove(struct nvme_n
 			blk_integrity_unregister(ns->disk);
 	}
 
-	mutex_lock(&ns->ctrl->subsys->lock);
-	list_del_rcu(&ns->siblings);
-	nvme_mpath_clear_current_path(ns);
-	mutex_unlock(&ns->ctrl->subsys->lock);
-
 	down_write(&ns->ctrl->namespaces_rwsem);
 	list_del_init(&ns->list);
 	up_write(&ns->ctrl->namespaces_rwsem);
 
-	synchronize_srcu(&ns->head->srcu);
 	nvme_mpath_check_last_path(ns);
 	nvme_put_ns(ns);
 }
@@ -3373,7 +3399,8 @@ static int nvme_scan_ns_list(struct nvme
 {
 	struct nvme_ns *ns;
 	__le32 *ns_list;
-	unsigned i, j, nsid, prev = 0, num_lists = DIV_ROUND_UP(nn, 1024);
+	unsigned i, j, nsid, prev = 0;
+	unsigned num_lists = DIV_ROUND_UP_ULL((u64)nn, 1024);
 	int ret = 0;
 
 	ns_list = kzalloc(NVME_IDENTIFY_DATA_SIZE, GFP_KERNEL);
@@ -3675,6 +3702,7 @@ EXPORT_SYMBOL_GPL(nvme_start_ctrl);
 
 void nvme_uninit_ctrl(struct nvme_ctrl *ctrl)
 {
+	dev_pm_qos_hide_latency_tolerance(ctrl->device);
 	cdev_device_del(&ctrl->cdev, ctrl->device);
 }
 EXPORT_SYMBOL_GPL(nvme_uninit_ctrl);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvme/host/pci.c linux-libre-5.1.21-gnu/drivers/nvme/host/pci.c
--- linux-libre-5.1-gnu/drivers/nvme/host/pci.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvme/host/pci.c	2019-07-28 02:28:39.000000000 -0400
@@ -500,7 +500,7 @@ static int nvme_pci_map_queues(struct bl
 		 * affinity), so use the regular blk-mq cpu mapping
 		 */
 		map->queue_offset = qoff;
-		if (i != HCTX_TYPE_POLL)
+		if (i != HCTX_TYPE_POLL && offset)
 			blk_mq_pci_map_queues(map, to_pci_dev(dev->dev), offset);
 		else
 			blk_mq_map_queues(map);
@@ -1271,6 +1271,7 @@ static enum blk_eh_timer_return nvme_tim
 	struct nvme_dev *dev = nvmeq->dev;
 	struct request *abort_req;
 	struct nvme_command cmd;
+	bool shutdown = false;
 	u32 csts = readl(dev->bar + NVME_REG_CSTS);
 
 	/* If PCI error recovery process is happening, we cannot reset or
@@ -1307,12 +1308,14 @@ static enum blk_eh_timer_return nvme_tim
 	 * shutdown, so we return BLK_EH_DONE.
 	 */
 	switch (dev->ctrl.state) {
+	case NVME_CTRL_DELETING:
+		shutdown = true;
 	case NVME_CTRL_CONNECTING:
 	case NVME_CTRL_RESETTING:
 		dev_warn_ratelimited(dev->ctrl.device,
 			 "I/O %d QID %d timeout, disable controller\n",
 			 req->tag, nvmeq->qid);
-		nvme_dev_disable(dev, false);
+		nvme_dev_disable(dev, shutdown);
 		nvme_req(req)->flags |= NVME_REQ_CANCELLED;
 		return BLK_EH_DONE;
 	default:
@@ -2082,6 +2085,7 @@ static int nvme_setup_irqs(struct nvme_d
 		.priv		= dev,
 	};
 	unsigned int irq_queues, this_p_queues;
+	unsigned int nr_cpus = num_possible_cpus();
 
 	/*
 	 * Poll queues don't need interrupts, but we need at least one IO
@@ -2092,7 +2096,10 @@ static int nvme_setup_irqs(struct nvme_d
 		this_p_queues = nr_io_queues - 1;
 		irq_queues = 1;
 	} else {
-		irq_queues = nr_io_queues - this_p_queues + 1;
+		if (nr_cpus < nr_io_queues - this_p_queues)
+			irq_queues = nr_cpus + 1;
+		else
+			irq_queues = nr_io_queues - this_p_queues + 1;
 	}
 	dev->io_queues[HCTX_TYPE_POLL] = this_p_queues;
 
@@ -2397,7 +2404,7 @@ static void nvme_pci_disable(struct nvme
 
 static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
 {
-	bool dead = true;
+	bool dead = true, freeze = false;
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
 
 	mutex_lock(&dev->shutdown_lock);
@@ -2405,8 +2412,10 @@ static void nvme_dev_disable(struct nvme
 		u32 csts = readl(dev->bar + NVME_REG_CSTS);
 
 		if (dev->ctrl.state == NVME_CTRL_LIVE ||
-		    dev->ctrl.state == NVME_CTRL_RESETTING)
+		    dev->ctrl.state == NVME_CTRL_RESETTING) {
+			freeze = true;
 			nvme_start_freeze(&dev->ctrl);
+		}
 		dead = !!((csts & NVME_CSTS_CFS) || !(csts & NVME_CSTS_RDY) ||
 			pdev->error_state  != pci_channel_io_normal);
 	}
@@ -2415,10 +2424,8 @@ static void nvme_dev_disable(struct nvme
 	 * Give the controller a chance to complete all entered requests if
 	 * doing a safe shutdown.
 	 */
-	if (!dead) {
-		if (shutdown)
-			nvme_wait_freeze_timeout(&dev->ctrl, NVME_IO_TIMEOUT);
-	}
+	if (!dead && shutdown && freeze)
+		nvme_wait_freeze_timeout(&dev->ctrl, NVME_IO_TIMEOUT);
 
 	nvme_stop_queues(&dev->ctrl);
 
@@ -2438,8 +2445,11 @@ static void nvme_dev_disable(struct nvme
 	 * must flush all entered requests to their failed completion to avoid
 	 * deadlocking blk-mq hot-cpu notifier.
 	 */
-	if (shutdown)
+	if (shutdown) {
 		nvme_start_queues(&dev->ctrl);
+		if (dev->ctrl.admin_q && !blk_queue_dying(dev->ctrl.admin_q))
+			blk_mq_unquiesce_queue(dev->ctrl.admin_q);
+	}
 	mutex_unlock(&dev->shutdown_lock);
 }
 
@@ -2498,11 +2508,13 @@ static void nvme_reset_work(struct work_
 	struct nvme_dev *dev =
 		container_of(work, struct nvme_dev, ctrl.reset_work);
 	bool was_suspend = !!(dev->ctrl.ctrl_config & NVME_CC_SHN_NORMAL);
-	int result = -ENODEV;
+	int result;
 	enum nvme_ctrl_state new_state = NVME_CTRL_LIVE;
 
-	if (WARN_ON(dev->ctrl.state != NVME_CTRL_RESETTING))
+	if (WARN_ON(dev->ctrl.state != NVME_CTRL_RESETTING)) {
+		result = -ENODEV;
 		goto out;
+	}
 
 	/*
 	 * If we're called to reset a live controller first shut it down before
@@ -2539,6 +2551,7 @@ static void nvme_reset_work(struct work_
 	if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_CONNECTING)) {
 		dev_warn(dev->ctrl.device,
 			"failed to mark controller CONNECTING\n");
+		result = -EBUSY;
 		goto out;
 	}
 
@@ -2599,6 +2612,7 @@ static void nvme_reset_work(struct work_
 	if (!nvme_change_ctrl_state(&dev->ctrl, new_state)) {
 		dev_warn(dev->ctrl.device,
 			"failed to mark controller state %d\n", new_state);
+		result = -ENODEV;
 		goto out;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvme/host/rdma.c linux-libre-5.1.21-gnu/drivers/nvme/host/rdma.c
--- linux-libre-5.1-gnu/drivers/nvme/host/rdma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvme/host/rdma.c	2019-07-28 02:28:39.000000000 -0400
@@ -641,34 +641,16 @@ static int nvme_rdma_alloc_io_queues(str
 {
 	struct nvmf_ctrl_options *opts = ctrl->ctrl.opts;
 	struct ib_device *ibdev = ctrl->device->dev;
-	unsigned int nr_io_queues;
+	unsigned int nr_io_queues, nr_default_queues;
+	unsigned int nr_read_queues, nr_poll_queues;
 	int i, ret;
 
-	nr_io_queues = min(opts->nr_io_queues, num_online_cpus());
-
-	/*
-	 * we map queues according to the device irq vectors for
-	 * optimal locality so we don't need more queues than
-	 * completion vectors.
-	 */
-	nr_io_queues = min_t(unsigned int, nr_io_queues,
-				ibdev->num_comp_vectors);
-
-	if (opts->nr_write_queues) {
-		ctrl->io_queues[HCTX_TYPE_DEFAULT] =
-				min(opts->nr_write_queues, nr_io_queues);
-		nr_io_queues += ctrl->io_queues[HCTX_TYPE_DEFAULT];
-	} else {
-		ctrl->io_queues[HCTX_TYPE_DEFAULT] = nr_io_queues;
-	}
-
-	ctrl->io_queues[HCTX_TYPE_READ] = nr_io_queues;
-
-	if (opts->nr_poll_queues) {
-		ctrl->io_queues[HCTX_TYPE_POLL] =
-			min(opts->nr_poll_queues, num_online_cpus());
-		nr_io_queues += ctrl->io_queues[HCTX_TYPE_POLL];
-	}
+	nr_read_queues = min_t(unsigned int, ibdev->num_comp_vectors,
+				min(opts->nr_io_queues, num_online_cpus()));
+	nr_default_queues =  min_t(unsigned int, ibdev->num_comp_vectors,
+				min(opts->nr_write_queues, num_online_cpus()));
+	nr_poll_queues = min(opts->nr_poll_queues, num_online_cpus());
+	nr_io_queues = nr_read_queues + nr_default_queues + nr_poll_queues;
 
 	ret = nvme_set_queue_count(&ctrl->ctrl, &nr_io_queues);
 	if (ret)
@@ -681,6 +663,34 @@ static int nvme_rdma_alloc_io_queues(str
 	dev_info(ctrl->ctrl.device,
 		"creating %d I/O queues.\n", nr_io_queues);
 
+	if (opts->nr_write_queues && nr_read_queues < nr_io_queues) {
+		/*
+		 * separate read/write queues
+		 * hand out dedicated default queues only after we have
+		 * sufficient read queues.
+		 */
+		ctrl->io_queues[HCTX_TYPE_READ] = nr_read_queues;
+		nr_io_queues -= ctrl->io_queues[HCTX_TYPE_READ];
+		ctrl->io_queues[HCTX_TYPE_DEFAULT] =
+			min(nr_default_queues, nr_io_queues);
+		nr_io_queues -= ctrl->io_queues[HCTX_TYPE_DEFAULT];
+	} else {
+		/*
+		 * shared read/write queues
+		 * either no write queues were requested, or we don't have
+		 * sufficient queue count to have dedicated default queues.
+		 */
+		ctrl->io_queues[HCTX_TYPE_DEFAULT] =
+			min(nr_read_queues, nr_io_queues);
+		nr_io_queues -= ctrl->io_queues[HCTX_TYPE_DEFAULT];
+	}
+
+	if (opts->nr_poll_queues && nr_io_queues) {
+		/* map dedicated poll queues only if we have queues left */
+		ctrl->io_queues[HCTX_TYPE_POLL] =
+			min(nr_poll_queues, nr_io_queues);
+	}
+
 	for (i = 1; i < ctrl->ctrl.queue_count; i++) {
 		ret = nvme_rdma_alloc_queue(ctrl, i,
 				ctrl->ctrl.sqsize + 1);
@@ -914,8 +924,9 @@ static void nvme_rdma_teardown_admin_que
 {
 	blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
 	nvme_rdma_stop_queue(&ctrl->queues[0]);
-	blk_mq_tagset_busy_iter(&ctrl->admin_tag_set, nvme_cancel_request,
-			&ctrl->ctrl);
+	if (ctrl->ctrl.admin_tagset)
+		blk_mq_tagset_busy_iter(ctrl->ctrl.admin_tagset,
+			nvme_cancel_request, &ctrl->ctrl);
 	blk_mq_unquiesce_queue(ctrl->ctrl.admin_q);
 	nvme_rdma_destroy_admin_queue(ctrl, remove);
 }
@@ -926,8 +937,9 @@ static void nvme_rdma_teardown_io_queues
 	if (ctrl->ctrl.queue_count > 1) {
 		nvme_stop_queues(&ctrl->ctrl);
 		nvme_rdma_stop_io_queues(ctrl);
-		blk_mq_tagset_busy_iter(&ctrl->tag_set, nvme_cancel_request,
-				&ctrl->ctrl);
+		if (ctrl->ctrl.tagset)
+			blk_mq_tagset_busy_iter(ctrl->ctrl.tagset,
+				nvme_cancel_request, &ctrl->ctrl);
 		if (remove)
 			nvme_start_queues(&ctrl->ctrl);
 		nvme_rdma_destroy_io_queues(ctrl, remove);
@@ -1785,17 +1797,24 @@ static void nvme_rdma_complete_rq(struct
 static int nvme_rdma_map_queues(struct blk_mq_tag_set *set)
 {
 	struct nvme_rdma_ctrl *ctrl = set->driver_data;
+	struct nvmf_ctrl_options *opts = ctrl->ctrl.opts;
 
-	set->map[HCTX_TYPE_DEFAULT].queue_offset = 0;
-	set->map[HCTX_TYPE_DEFAULT].nr_queues =
-			ctrl->io_queues[HCTX_TYPE_DEFAULT];
-	set->map[HCTX_TYPE_READ].nr_queues = ctrl->io_queues[HCTX_TYPE_READ];
-	if (ctrl->ctrl.opts->nr_write_queues) {
+	if (opts->nr_write_queues && ctrl->io_queues[HCTX_TYPE_READ]) {
 		/* separate read/write queues */
+		set->map[HCTX_TYPE_DEFAULT].nr_queues =
+			ctrl->io_queues[HCTX_TYPE_DEFAULT];
+		set->map[HCTX_TYPE_DEFAULT].queue_offset = 0;
+		set->map[HCTX_TYPE_READ].nr_queues =
+			ctrl->io_queues[HCTX_TYPE_READ];
 		set->map[HCTX_TYPE_READ].queue_offset =
-				ctrl->io_queues[HCTX_TYPE_DEFAULT];
+			ctrl->io_queues[HCTX_TYPE_DEFAULT];
 	} else {
-		/* mixed read/write queues */
+		/* shared read/write queues */
+		set->map[HCTX_TYPE_DEFAULT].nr_queues =
+			ctrl->io_queues[HCTX_TYPE_DEFAULT];
+		set->map[HCTX_TYPE_DEFAULT].queue_offset = 0;
+		set->map[HCTX_TYPE_READ].nr_queues =
+			ctrl->io_queues[HCTX_TYPE_DEFAULT];
 		set->map[HCTX_TYPE_READ].queue_offset = 0;
 	}
 	blk_mq_rdma_map_queues(&set->map[HCTX_TYPE_DEFAULT],
@@ -1803,16 +1822,22 @@ static int nvme_rdma_map_queues(struct b
 	blk_mq_rdma_map_queues(&set->map[HCTX_TYPE_READ],
 			ctrl->device->dev, 0);
 
-	if (ctrl->ctrl.opts->nr_poll_queues) {
+	if (opts->nr_poll_queues && ctrl->io_queues[HCTX_TYPE_POLL]) {
+		/* map dedicated poll queues only if we have queues left */
 		set->map[HCTX_TYPE_POLL].nr_queues =
 				ctrl->io_queues[HCTX_TYPE_POLL];
 		set->map[HCTX_TYPE_POLL].queue_offset =
-				ctrl->io_queues[HCTX_TYPE_DEFAULT];
-		if (ctrl->ctrl.opts->nr_write_queues)
-			set->map[HCTX_TYPE_POLL].queue_offset +=
-				ctrl->io_queues[HCTX_TYPE_READ];
+			ctrl->io_queues[HCTX_TYPE_DEFAULT] +
+			ctrl->io_queues[HCTX_TYPE_READ];
 		blk_mq_map_queues(&set->map[HCTX_TYPE_POLL]);
 	}
+
+	dev_info(ctrl->ctrl.device,
+		"mapped %d/%d/%d default/read/poll queues.\n",
+		ctrl->io_queues[HCTX_TYPE_DEFAULT],
+		ctrl->io_queues[HCTX_TYPE_READ],
+		ctrl->io_queues[HCTX_TYPE_POLL]);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvme/host/tcp.c linux-libre-5.1.21-gnu/drivers/nvme/host/tcp.c
--- linux-libre-5.1-gnu/drivers/nvme/host/tcp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvme/host/tcp.c	2019-07-28 02:28:39.000000000 -0400
@@ -111,6 +111,7 @@ struct nvme_tcp_ctrl {
 	struct work_struct	err_work;
 	struct delayed_work	connect_work;
 	struct nvme_tcp_request async_req;
+	u32			io_queues[HCTX_MAX_TYPES];
 };
 
 static LIST_HEAD(nvme_tcp_ctrl_list);
@@ -473,7 +474,6 @@ static int nvme_tcp_handle_c2h_data(stru
 	}
 
 	return 0;
-
 }
 
 static int nvme_tcp_handle_comp(struct nvme_tcp_queue *queue,
@@ -634,7 +634,6 @@ static inline void nvme_tcp_end_request(
 	nvme_end_request(rq, cpu_to_le16(status << 1), res);
 }
 
-
 static int nvme_tcp_recv_data(struct nvme_tcp_queue *queue, struct sk_buff *skb,
 			      unsigned int *offset, size_t *len)
 {
@@ -1425,7 +1424,8 @@ static int nvme_tcp_start_queue(struct n
 	if (!ret) {
 		set_bit(NVME_TCP_Q_LIVE, &ctrl->queues[idx].flags);
 	} else {
-		__nvme_tcp_stop_queue(&ctrl->queues[idx]);
+		if (test_bit(NVME_TCP_Q_ALLOCATED, &ctrl->queues[idx].flags))
+			__nvme_tcp_stop_queue(&ctrl->queues[idx]);
 		dev_err(nctrl->device,
 			"failed to connect queue: %d ret=%d\n", idx, ret);
 	}
@@ -1535,7 +1535,7 @@ out_free_queue:
 	return ret;
 }
 
-static int nvme_tcp_alloc_io_queues(struct nvme_ctrl *ctrl)
+static int __nvme_tcp_alloc_io_queues(struct nvme_ctrl *ctrl)
 {
 	int i, ret;
 
@@ -1565,7 +1565,36 @@ static unsigned int nvme_tcp_nr_io_queue
 	return nr_io_queues;
 }
 
-static int nvme_alloc_io_queues(struct nvme_ctrl *ctrl)
+static void nvme_tcp_set_io_queues(struct nvme_ctrl *nctrl,
+		unsigned int nr_io_queues)
+{
+	struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl);
+	struct nvmf_ctrl_options *opts = nctrl->opts;
+
+	if (opts->nr_write_queues && opts->nr_io_queues < nr_io_queues) {
+		/*
+		 * separate read/write queues
+		 * hand out dedicated default queues only after we have
+		 * sufficient read queues.
+		 */
+		ctrl->io_queues[HCTX_TYPE_READ] = opts->nr_io_queues;
+		nr_io_queues -= ctrl->io_queues[HCTX_TYPE_READ];
+		ctrl->io_queues[HCTX_TYPE_DEFAULT] =
+			min(opts->nr_write_queues, nr_io_queues);
+		nr_io_queues -= ctrl->io_queues[HCTX_TYPE_DEFAULT];
+	} else {
+		/*
+		 * shared read/write queues
+		 * either no write queues were requested, or we don't have
+		 * sufficient queue count to have dedicated default queues.
+		 */
+		ctrl->io_queues[HCTX_TYPE_DEFAULT] =
+			min(opts->nr_io_queues, nr_io_queues);
+		nr_io_queues -= ctrl->io_queues[HCTX_TYPE_DEFAULT];
+	}
+}
+
+static int nvme_tcp_alloc_io_queues(struct nvme_ctrl *ctrl)
 {
 	unsigned int nr_io_queues;
 	int ret;
@@ -1582,7 +1611,9 @@ static int nvme_alloc_io_queues(struct n
 	dev_info(ctrl->device,
 		"creating %d I/O queues.\n", nr_io_queues);
 
-	return nvme_tcp_alloc_io_queues(ctrl);
+	nvme_tcp_set_io_queues(ctrl, nr_io_queues);
+
+	return __nvme_tcp_alloc_io_queues(ctrl);
 }
 
 static void nvme_tcp_destroy_io_queues(struct nvme_ctrl *ctrl, bool remove)
@@ -1599,7 +1630,7 @@ static int nvme_tcp_configure_io_queues(
 {
 	int ret;
 
-	ret = nvme_alloc_io_queues(ctrl);
+	ret = nvme_tcp_alloc_io_queues(ctrl);
 	if (ret)
 		return ret;
 
@@ -1710,7 +1741,9 @@ static void nvme_tcp_teardown_admin_queu
 {
 	blk_mq_quiesce_queue(ctrl->admin_q);
 	nvme_tcp_stop_queue(ctrl, 0);
-	blk_mq_tagset_busy_iter(ctrl->admin_tagset, nvme_cancel_request, ctrl);
+	if (ctrl->admin_tagset)
+		blk_mq_tagset_busy_iter(ctrl->admin_tagset,
+			nvme_cancel_request, ctrl);
 	blk_mq_unquiesce_queue(ctrl->admin_q);
 	nvme_tcp_destroy_admin_queue(ctrl, remove);
 }
@@ -1722,7 +1755,9 @@ static void nvme_tcp_teardown_io_queues(
 		return;
 	nvme_stop_queues(ctrl);
 	nvme_tcp_stop_io_queues(ctrl);
-	blk_mq_tagset_busy_iter(ctrl->tagset, nvme_cancel_request, ctrl);
+	if (ctrl->tagset)
+		blk_mq_tagset_busy_iter(ctrl->tagset,
+			nvme_cancel_request, ctrl);
 	if (remove)
 		nvme_start_queues(ctrl);
 	nvme_tcp_destroy_io_queues(ctrl, remove);
@@ -2086,23 +2121,34 @@ static blk_status_t nvme_tcp_queue_rq(st
 static int nvme_tcp_map_queues(struct blk_mq_tag_set *set)
 {
 	struct nvme_tcp_ctrl *ctrl = set->driver_data;
+	struct nvmf_ctrl_options *opts = ctrl->ctrl.opts;
 
-	set->map[HCTX_TYPE_DEFAULT].queue_offset = 0;
-	set->map[HCTX_TYPE_READ].nr_queues = ctrl->ctrl.opts->nr_io_queues;
-	if (ctrl->ctrl.opts->nr_write_queues) {
+	if (opts->nr_write_queues && ctrl->io_queues[HCTX_TYPE_READ]) {
 		/* separate read/write queues */
 		set->map[HCTX_TYPE_DEFAULT].nr_queues =
-				ctrl->ctrl.opts->nr_write_queues;
+			ctrl->io_queues[HCTX_TYPE_DEFAULT];
+		set->map[HCTX_TYPE_DEFAULT].queue_offset = 0;
+		set->map[HCTX_TYPE_READ].nr_queues =
+			ctrl->io_queues[HCTX_TYPE_READ];
 		set->map[HCTX_TYPE_READ].queue_offset =
-				ctrl->ctrl.opts->nr_write_queues;
+			ctrl->io_queues[HCTX_TYPE_DEFAULT];
 	} else {
-		/* mixed read/write queues */
+		/* shared read/write queues */
 		set->map[HCTX_TYPE_DEFAULT].nr_queues =
-				ctrl->ctrl.opts->nr_io_queues;
+			ctrl->io_queues[HCTX_TYPE_DEFAULT];
+		set->map[HCTX_TYPE_DEFAULT].queue_offset = 0;
+		set->map[HCTX_TYPE_READ].nr_queues =
+			ctrl->io_queues[HCTX_TYPE_DEFAULT];
 		set->map[HCTX_TYPE_READ].queue_offset = 0;
 	}
 	blk_mq_map_queues(&set->map[HCTX_TYPE_DEFAULT]);
 	blk_mq_map_queues(&set->map[HCTX_TYPE_READ]);
+
+	dev_info(ctrl->ctrl.device,
+		"mapped %d/%d default/read queues.\n",
+		ctrl->io_queues[HCTX_TYPE_DEFAULT],
+		ctrl->io_queues[HCTX_TYPE_READ]);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvme/target/io-cmd-bdev.c linux-libre-5.1.21-gnu/drivers/nvme/target/io-cmd-bdev.c
--- linux-libre-5.1-gnu/drivers/nvme/target/io-cmd-bdev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvme/target/io-cmd-bdev.c	2019-07-28 02:28:39.000000000 -0400
@@ -295,6 +295,7 @@ u16 nvmet_bdev_parse_io_cmd(struct nvmet
 		return 0;
 	case nvme_cmd_write_zeroes:
 		req->execute = nvmet_bdev_execute_write_zeroes;
+		req->data_len = 0;
 		return 0;
 	default:
 		pr_err("unhandled cmd %d on qid %d\n", cmd->common.opcode,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvmem/core.c linux-libre-5.1.21-gnu/drivers/nvmem/core.c
--- linux-libre-5.1-gnu/drivers/nvmem/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvmem/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -1166,7 +1166,7 @@ EXPORT_SYMBOL_GPL(nvmem_cell_put);
 static void nvmem_shift_read_buffer_in_place(struct nvmem_cell *cell, void *buf)
 {
 	u8 *p, *b;
-	int i, bit_offset = cell->bit_offset;
+	int i, extra, bit_offset = cell->bit_offset;
 
 	p = b = buf;
 	if (bit_offset) {
@@ -1181,11 +1181,16 @@ static void nvmem_shift_read_buffer_in_p
 			p = b;
 			*b++ >>= bit_offset;
 		}
-
-		/* result fits in less bytes */
-		if (cell->bytes != DIV_ROUND_UP(cell->nbits, BITS_PER_BYTE))
-			*p-- = 0;
+	} else {
+		/* point to the msb */
+		p += cell->bytes - 1;
 	}
+
+	/* result fits in less bytes */
+	extra = cell->bytes - DIV_ROUND_UP(cell->nbits, BITS_PER_BYTE);
+	while (--extra >= 0)
+		*p-- = 0;
+
 	/* clear msb bits if any leftover in the last byte */
 	*p &= GENMASK((cell->nbits%BITS_PER_BYTE) - 1, 0);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/nvmem/sunxi_sid.c linux-libre-5.1.21-gnu/drivers/nvmem/sunxi_sid.c
--- linux-libre-5.1-gnu/drivers/nvmem/sunxi_sid.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/nvmem/sunxi_sid.c	2019-07-28 02:28:39.000000000 -0400
@@ -222,8 +222,10 @@ static const struct sunxi_sid_cfg sun50i
 static const struct of_device_id sunxi_sid_of_match[] = {
 	{ .compatible = "allwinner,sun4i-a10-sid", .data = &sun4i_a10_cfg },
 	{ .compatible = "allwinner,sun7i-a20-sid", .data = &sun7i_a20_cfg },
+	{ .compatible = "allwinner,sun8i-a83t-sid", .data = &sun50i_a64_cfg },
 	{ .compatible = "allwinner,sun8i-h3-sid", .data = &sun8i_h3_cfg },
 	{ .compatible = "allwinner,sun50i-a64-sid", .data = &sun50i_a64_cfg },
+	{ .compatible = "allwinner,sun50i-h5-sid", .data = &sun50i_a64_cfg },
 	{/* sentinel */},
 };
 MODULE_DEVICE_TABLE(of, sunxi_sid_of_match);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/opp/core.c linux-libre-5.1.21-gnu/drivers/opp/core.c
--- linux-libre-5.1-gnu/drivers/opp/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/opp/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -631,7 +631,7 @@ static int _set_opp_custom(const struct
 
 	data->old_opp.rate = old_freq;
 	size = sizeof(*old_supply) * opp_table->regulator_count;
-	if (IS_ERR(old_supply))
+	if (!old_supply)
 		memset(data->old_opp.supplies, 0, size);
 	else
 		memcpy(data->old_opp.supplies, old_supply, size);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/parisc/ccio-dma.c linux-libre-5.1.21-gnu/drivers/parisc/ccio-dma.c
--- linux-libre-5.1-gnu/drivers/parisc/ccio-dma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/parisc/ccio-dma.c	2019-07-28 02:28:39.000000000 -0400
@@ -565,8 +565,6 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_
 	/* We currently only support kernel addresses */
 	BUG_ON(sid != KERNEL_SPACE);
 
-	mtsp(sid,1);
-
 	/*
 	** WORD 1 - low order word
 	** "hints" parm includes the VALID bit!
@@ -597,7 +595,7 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_
 	** Grab virtual index [0:11]
 	** Deposit virt_idx bits into I/O PDIR word
 	*/
-	asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
+	asm volatile ("lci %%r0(%1), %0" : "=r" (ci) : "r" (vba));
 	asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci));
 	asm volatile ("depw  %1,15,12,%0" : "+r" (pa) : "r" (ci));
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/parisc/led.c linux-libre-5.1.21-gnu/drivers/parisc/led.c
--- linux-libre-5.1-gnu/drivers/parisc/led.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/parisc/led.c	2019-07-28 02:28:39.000000000 -0400
@@ -568,6 +568,9 @@ int __init register_led_driver(int model
 		break;
 
 	case DISPLAY_MODEL_LASI:
+		/* Skip to register LED in QEMU */
+		if (running_on_qemu)
+			return 1;
 		LED_DATA_REG = data_reg;
 		led_func_ptr = led_LASI_driver;
 		printk(KERN_INFO "LED display at %lx registered\n", LED_DATA_REG);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/parisc/sba_iommu.c linux-libre-5.1.21-gnu/drivers/parisc/sba_iommu.c
--- linux-libre-5.1-gnu/drivers/parisc/sba_iommu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/parisc/sba_iommu.c	2019-07-28 02:28:39.000000000 -0400
@@ -575,8 +575,7 @@ sba_io_pdir_entry(u64 *pdir_ptr, space_t
 	pa = virt_to_phys(vba);
 	pa &= IOVP_MASK;
 
-	mtsp(sid,1);
-	asm("lci 0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
+	asm("lci 0(%1), %0" : "=r" (ci) : "r" (vba));
 	pa |= (ci >> PAGE_SHIFT) & 0xff;  /* move CI (8 bits) into lowest byte */
 
 	pa |= SBA_PDIR_VALID_BIT;	/* set "valid" bit */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/parport/share.c linux-libre-5.1.21-gnu/drivers/parport/share.c
--- linux-libre-5.1-gnu/drivers/parport/share.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/parport/share.c	2019-07-28 02:28:39.000000000 -0400
@@ -895,6 +895,7 @@ parport_register_dev_model(struct parpor
 	par_dev->devmodel = true;
 	ret = device_register(&par_dev->dev);
 	if (ret) {
+		kfree(par_dev->state);
 		put_device(&par_dev->dev);
 		goto err_put_port;
 	}
@@ -912,6 +913,7 @@ parport_register_dev_model(struct parpor
 			spin_unlock(&port->physport->pardevice_lock);
 			pr_debug("%s: cannot grant exclusive access for device %s\n",
 				 port->name, name);
+			kfree(par_dev->state);
 			device_unregister(&par_dev->dev);
 			goto err_put_port;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/controller/dwc/pcie-designware-ep.c linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pcie-designware-ep.c
--- linux-libre-5.1-gnu/drivers/pci/controller/dwc/pcie-designware-ep.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pcie-designware-ep.c	2019-07-28 02:28:39.000000000 -0400
@@ -397,6 +397,7 @@ int dw_pcie_ep_raise_msi_irq(struct dw_p
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 	struct pci_epc *epc = ep->epc;
+	unsigned int aligned_offset;
 	u16 msg_ctrl, msg_data;
 	u32 msg_addr_lower, msg_addr_upper, reg;
 	u64 msg_addr;
@@ -422,13 +423,15 @@ int dw_pcie_ep_raise_msi_irq(struct dw_p
 		reg = ep->msi_cap + PCI_MSI_DATA_32;
 		msg_data = dw_pcie_readw_dbi(pci, reg);
 	}
-	msg_addr = ((u64) msg_addr_upper) << 32 | msg_addr_lower;
+	aligned_offset = msg_addr_lower & (epc->mem->page_size - 1);
+	msg_addr = ((u64)msg_addr_upper) << 32 |
+			(msg_addr_lower & ~aligned_offset);
 	ret = dw_pcie_ep_map_addr(epc, func_no, ep->msi_mem_phys, msg_addr,
 				  epc->mem->page_size);
 	if (ret)
 		return ret;
 
-	writel(msg_data | (interrupt_num - 1), ep->msi_mem);
+	writel(msg_data | (interrupt_num - 1), ep->msi_mem + aligned_offset);
 
 	dw_pcie_ep_unmap_addr(epc, func_no, ep->msi_mem_phys);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/controller/dwc/pcie-designware.h linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pcie-designware.h
--- linux-libre-5.1-gnu/drivers/pci/controller/dwc/pcie-designware.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pcie-designware.h	2019-07-28 02:28:39.000000000 -0400
@@ -179,6 +179,7 @@ struct pcie_port {
 	struct irq_domain	*irq_domain;
 	struct irq_domain	*msi_domain;
 	dma_addr_t		msi_data;
+	struct page		*msi_page;
 	u32			num_vectors;
 	u32			irq_mask[MAX_MSI_CTRLS];
 	raw_spinlock_t		lock;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/controller/dwc/pcie-designware-host.c linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pcie-designware-host.c
--- linux-libre-5.1-gnu/drivers/pci/controller/dwc/pcie-designware-host.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pcie-designware-host.c	2019-07-28 02:28:39.000000000 -0400
@@ -303,20 +303,24 @@ void dw_pcie_free_msi(struct pcie_port *
 
 	irq_domain_remove(pp->msi_domain);
 	irq_domain_remove(pp->irq_domain);
+
+	if (pp->msi_page)
+		__free_page(pp->msi_page);
 }
 
 void dw_pcie_msi_init(struct pcie_port *pp)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 	struct device *dev = pci->dev;
-	struct page *page;
 	u64 msi_target;
 
-	page = alloc_page(GFP_KERNEL);
-	pp->msi_data = dma_map_page(dev, page, 0, PAGE_SIZE, DMA_FROM_DEVICE);
+	pp->msi_page = alloc_page(GFP_KERNEL);
+	pp->msi_data = dma_map_page(dev, pp->msi_page, 0, PAGE_SIZE,
+				    DMA_FROM_DEVICE);
 	if (dma_mapping_error(dev, pp->msi_data)) {
 		dev_err(dev, "Failed to map MSI data\n");
-		__free_page(page);
+		__free_page(pp->msi_page);
+		pp->msi_page = NULL;
 		return;
 	}
 	msi_target = (u64)pp->msi_data;
@@ -439,7 +443,7 @@ int dw_pcie_host_init(struct pcie_port *
 	if (ret)
 		pci->num_viewport = 2;
 
-	if (IS_ENABLED(CONFIG_PCI_MSI) && pci_msi_enabled()) {
+	if (pci_msi_enabled()) {
 		/*
 		 * If a specific SoC driver needs to change the
 		 * default number of vectors, it needs to implement
@@ -477,7 +481,7 @@ int dw_pcie_host_init(struct pcie_port *
 	if (pp->ops->host_init) {
 		ret = pp->ops->host_init(pp);
 		if (ret)
-			goto error;
+			goto err_free_msi;
 	}
 
 	pp->root_bus_nr = pp->busn->start;
@@ -491,7 +495,7 @@ int dw_pcie_host_init(struct pcie_port *
 
 	ret = pci_scan_root_bus_bridge(bridge);
 	if (ret)
-		goto error;
+		goto err_free_msi;
 
 	bus = bridge->bus;
 
@@ -507,6 +511,9 @@ int dw_pcie_host_init(struct pcie_port *
 	pci_bus_add_devices(bus);
 	return 0;
 
+err_free_msi:
+	if (pci_msi_enabled() && !pp->ops->msi_host_init)
+		dw_pcie_free_msi(pp);
 error:
 	pci_free_host_bridge(bridge);
 	return ret;
@@ -646,17 +653,19 @@ void dw_pcie_setup_rc(struct pcie_port *
 
 	dw_pcie_setup(pci);
 
-	num_ctrls = pp->num_vectors / MAX_MSI_IRQS_PER_CTRL;
+	if (!pp->ops->msi_host_init) {
+		num_ctrls = pp->num_vectors / MAX_MSI_IRQS_PER_CTRL;
 
-	/* Initialize IRQ Status array */
-	for (ctrl = 0; ctrl < num_ctrls; ctrl++) {
-		pp->irq_mask[ctrl] = ~0;
-		dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_MASK +
-					(ctrl * MSI_REG_CTRL_BLOCK_SIZE),
-				    4, pp->irq_mask[ctrl]);
-		dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_ENABLE +
-					(ctrl * MSI_REG_CTRL_BLOCK_SIZE),
-				    4, ~0);
+		/* Initialize IRQ Status array */
+		for (ctrl = 0; ctrl < num_ctrls; ctrl++) {
+			pp->irq_mask[ctrl] = ~0;
+			dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_MASK +
+					    (ctrl * MSI_REG_CTRL_BLOCK_SIZE),
+					    4, pp->irq_mask[ctrl]);
+			dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_ENABLE +
+					    (ctrl * MSI_REG_CTRL_BLOCK_SIZE),
+					    4, ~0);
+		}
 	}
 
 	/* Setup RC BARs */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/controller/dwc/pcie-qcom.c linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pcie-qcom.c
--- linux-libre-5.1-gnu/drivers/pci/controller/dwc/pcie-qcom.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pcie-qcom.c	2019-07-28 02:28:39.000000000 -0400
@@ -178,6 +178,8 @@ static void qcom_ep_reset_assert(struct
 
 static void qcom_ep_reset_deassert(struct qcom_pcie *pcie)
 {
+	/* Ensure that PERST has been asserted for at least 100 ms */
+	msleep(100);
 	gpiod_set_value_cansleep(pcie->reset, 0);
 	usleep_range(PERST_DELAY_US, PERST_DELAY_US + 500);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/controller/dwc/pci-keystone.c linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pci-keystone.c
--- linux-libre-5.1-gnu/drivers/pci/controller/dwc/pci-keystone.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/controller/dwc/pci-keystone.c	2019-07-28 02:28:39.000000000 -0400
@@ -705,6 +705,7 @@ static void ks_pcie_setup_interrupts(str
 		ks_pcie_enable_error_irq(ks_pcie);
 }
 
+#ifdef CONFIG_ARM
 /*
  * When a PCI device does not exist during config cycles, keystone host gets a
  * bus error instead of returning 0xffffffff. This handler always returns 0
@@ -724,6 +725,7 @@ static int ks_pcie_fault(unsigned long a
 
 	return 0;
 }
+#endif
 
 static int __init ks_pcie_init_id(struct keystone_pcie *ks_pcie)
 {
@@ -766,12 +768,14 @@ static int __init ks_pcie_host_init(stru
 	if (ret < 0)
 		return ret;
 
+#ifdef CONFIG_ARM
 	/*
 	 * PCIe access errors that result into OCP errors are caught by ARM as
 	 * "External aborts"
 	 */
 	hook_fault_code(17, ks_pcie_fault, SIGBUS, 0,
 			"Asynchronous external abort");
+#endif
 
 	return 0;
 }
@@ -873,6 +877,10 @@ static int ks_pcie_enable_phy(struct key
 	int num_lanes = ks_pcie->num_lanes;
 
 	for (i = 0; i < num_lanes; i++) {
+		ret = phy_reset(ks_pcie->phy[i]);
+		if (ret < 0)
+			goto err_phy;
+
 		ret = phy_init(ks_pcie->phy[i]);
 		if (ret < 0)
 			goto err_phy;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/controller/pcie-rcar.c linux-libre-5.1.21-gnu/drivers/pci/controller/pcie-rcar.c
--- linux-libre-5.1-gnu/drivers/pci/controller/pcie-rcar.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/controller/pcie-rcar.c	2019-07-28 02:28:39.000000000 -0400
@@ -46,6 +46,7 @@
 
 /* Transfer control */
 #define PCIETCTLR		0x02000
+#define  DL_DOWN		BIT(3)
 #define  CFINIT			1
 #define PCIETSTR		0x02004
 #define  DATA_LINK_ACTIVE	1
@@ -94,6 +95,7 @@
 #define MACCTLR			0x011058
 #define  SPEED_CHANGE		BIT(24)
 #define  SCRAMBLE_DISABLE	BIT(27)
+#define PMSR			0x01105c
 #define MACS2R			0x011078
 #define MACCGSPSETR		0x011084
 #define  SPCNGRSN		BIT(31)
@@ -890,7 +892,7 @@ static int rcar_pcie_enable_msi(struct r
 {
 	struct device *dev = pcie->dev;
 	struct rcar_msi *msi = &pcie->msi;
-	unsigned long base;
+	phys_addr_t base;
 	int err, i;
 
 	mutex_init(&msi->lock);
@@ -929,10 +931,14 @@ static int rcar_pcie_enable_msi(struct r
 
 	/* setup MSI data target */
 	msi->pages = __get_free_pages(GFP_KERNEL, 0);
+	if (!msi->pages) {
+		err = -ENOMEM;
+		goto err;
+	}
 	base = virt_to_phys((void *)msi->pages);
 
-	rcar_pci_write_reg(pcie, base | MSIFE, PCIEMSIALR);
-	rcar_pci_write_reg(pcie, 0, PCIEMSIAUR);
+	rcar_pci_write_reg(pcie, lower_32_bits(base) | MSIFE, PCIEMSIALR);
+	rcar_pci_write_reg(pcie, upper_32_bits(base), PCIEMSIAUR);
 
 	/* enable all MSI interrupts */
 	rcar_pci_write_reg(pcie, 0xffffffff, PCIEMSIIER);
@@ -1130,6 +1136,7 @@ static int rcar_pcie_probe(struct platfo
 	pcie = pci_host_bridge_priv(bridge);
 
 	pcie->dev = dev;
+	platform_set_drvdata(pdev, pcie);
 
 	err = pci_parse_request_of_pci_ranges(dev, &pcie->resources, NULL);
 	if (err)
@@ -1221,10 +1228,28 @@ err_free_bridge:
 	return err;
 }
 
+static int rcar_pcie_resume_noirq(struct device *dev)
+{
+	struct rcar_pcie *pcie = dev_get_drvdata(dev);
+
+	if (rcar_pci_read_reg(pcie, PMSR) &&
+	    !(rcar_pci_read_reg(pcie, PCIETCTLR) & DL_DOWN))
+		return 0;
+
+	/* Re-establish the PCIe link */
+	rcar_pci_write_reg(pcie, CFINIT, PCIETCTLR);
+	return rcar_pcie_wait_for_dl(pcie);
+}
+
+static const struct dev_pm_ops rcar_pcie_pm_ops = {
+	.resume_noirq = rcar_pcie_resume_noirq,
+};
+
 static struct platform_driver rcar_pcie_driver = {
 	.driver = {
 		.name = "rcar-pcie",
 		.of_match_table = rcar_pcie_of_match,
+		.pm = &rcar_pcie_pm_ops,
 		.suppress_bind_attrs = true,
 	},
 	.probe = rcar_pcie_probe,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/controller/pcie-xilinx.c linux-libre-5.1.21-gnu/drivers/pci/controller/pcie-xilinx.c
--- linux-libre-5.1-gnu/drivers/pci/controller/pcie-xilinx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/controller/pcie-xilinx.c	2019-07-28 02:28:39.000000000 -0400
@@ -336,14 +336,19 @@ static const struct irq_domain_ops msi_d
  * xilinx_pcie_enable_msi - Enable MSI support
  * @port: PCIe port information
  */
-static void xilinx_pcie_enable_msi(struct xilinx_pcie_port *port)
+static int xilinx_pcie_enable_msi(struct xilinx_pcie_port *port)
 {
 	phys_addr_t msg_addr;
 
 	port->msi_pages = __get_free_pages(GFP_KERNEL, 0);
+	if (!port->msi_pages)
+		return -ENOMEM;
+
 	msg_addr = virt_to_phys((void *)port->msi_pages);
 	pcie_write(port, 0x0, XILINX_PCIE_REG_MSIBASE1);
 	pcie_write(port, msg_addr, XILINX_PCIE_REG_MSIBASE2);
+
+	return 0;
 }
 
 /* INTx Functions */
@@ -498,6 +503,7 @@ static int xilinx_pcie_init_irq_domain(s
 	struct device *dev = port->dev;
 	struct device_node *node = dev->of_node;
 	struct device_node *pcie_intc_node;
+	int ret;
 
 	/* Setup INTx */
 	pcie_intc_node = of_get_next_child(node, NULL);
@@ -526,7 +532,9 @@ static int xilinx_pcie_init_irq_domain(s
 			return -ENODEV;
 		}
 
-		xilinx_pcie_enable_msi(port);
+		ret = xilinx_pcie_enable_msi(port);
+		if (ret)
+			return ret;
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/controller/pci-hyperv.c linux-libre-5.1.21-gnu/drivers/pci/controller/pci-hyperv.c
--- linux-libre-5.1-gnu/drivers/pci/controller/pci-hyperv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/controller/pci-hyperv.c	2019-07-28 02:28:39.000000000 -0400
@@ -1486,6 +1486,21 @@ static void hv_pci_assign_slots(struct h
 	}
 }
 
+/*
+ * Remove entries in sysfs pci slot directory.
+ */
+static void hv_pci_remove_slots(struct hv_pcibus_device *hbus)
+{
+	struct hv_pci_dev *hpdev;
+
+	list_for_each_entry(hpdev, &hbus->children, list_entry) {
+		if (!hpdev->pci_slot)
+			continue;
+		pci_destroy_slot(hpdev->pci_slot);
+		hpdev->pci_slot = NULL;
+	}
+}
+
 /**
  * create_root_hv_pci_bus() - Expose a new root PCI bus
  * @hbus:	Root PCI bus, as understood by this driver
@@ -1761,6 +1776,10 @@ static void pci_devices_present_work(str
 		hpdev = list_first_entry(&removed, struct hv_pci_dev,
 					 list_entry);
 		list_del(&hpdev->list_entry);
+
+		if (hpdev->pci_slot)
+			pci_destroy_slot(hpdev->pci_slot);
+
 		put_pcichild(hpdev);
 	}
 
@@ -1856,6 +1875,7 @@ static void hv_pci_devices_present(struc
 static void hv_eject_device_work(struct work_struct *work)
 {
 	struct pci_eject_response *ejct_pkt;
+	struct hv_pcibus_device *hbus;
 	struct hv_pci_dev *hpdev;
 	struct pci_dev *pdev;
 	unsigned long flags;
@@ -1866,6 +1886,7 @@ static void hv_eject_device_work(struct
 	} ctxt;
 
 	hpdev = container_of(work, struct hv_pci_dev, wrk);
+	hbus = hpdev->hbus;
 
 	WARN_ON(hpdev->state != hv_pcichild_ejecting);
 
@@ -1876,8 +1897,7 @@ static void hv_eject_device_work(struct
 	 * because hbus->pci_bus may not exist yet.
 	 */
 	wslot = wslot_to_devfn(hpdev->desc.win_slot.slot);
-	pdev = pci_get_domain_bus_and_slot(hpdev->hbus->sysdata.domain, 0,
-					   wslot);
+	pdev = pci_get_domain_bus_and_slot(hbus->sysdata.domain, 0, wslot);
 	if (pdev) {
 		pci_lock_rescan_remove();
 		pci_stop_and_remove_bus_device(pdev);
@@ -1885,9 +1905,9 @@ static void hv_eject_device_work(struct
 		pci_unlock_rescan_remove();
 	}
 
-	spin_lock_irqsave(&hpdev->hbus->device_list_lock, flags);
+	spin_lock_irqsave(&hbus->device_list_lock, flags);
 	list_del(&hpdev->list_entry);
-	spin_unlock_irqrestore(&hpdev->hbus->device_list_lock, flags);
+	spin_unlock_irqrestore(&hbus->device_list_lock, flags);
 
 	if (hpdev->pci_slot)
 		pci_destroy_slot(hpdev->pci_slot);
@@ -1896,13 +1916,18 @@ static void hv_eject_device_work(struct
 	ejct_pkt = (struct pci_eject_response *)&ctxt.pkt.message;
 	ejct_pkt->message_type.type = PCI_EJECTION_COMPLETE;
 	ejct_pkt->wslot.slot = hpdev->desc.win_slot.slot;
-	vmbus_sendpacket(hpdev->hbus->hdev->channel, ejct_pkt,
+	vmbus_sendpacket(hbus->hdev->channel, ejct_pkt,
 			 sizeof(*ejct_pkt), (unsigned long)&ctxt.pkt,
 			 VM_PKT_DATA_INBAND, 0);
 
+	/* For the get_pcichild() in hv_pci_eject_device() */
 	put_pcichild(hpdev);
+	/* For the two refs got in new_pcichild_device() */
 	put_pcichild(hpdev);
-	put_hvpcibus(hpdev->hbus);
+	put_pcichild(hpdev);
+	/* hpdev has been freed. Do not use it any more. */
+
+	put_hvpcibus(hbus);
 }
 
 /**
@@ -2677,6 +2702,7 @@ static int hv_pci_remove(struct hv_devic
 		pci_lock_rescan_remove();
 		pci_stop_root_bus(hbus->pci_bus);
 		pci_remove_root_bus(hbus->pci_bus);
+		hv_pci_remove_slots(hbus);
 		pci_unlock_rescan_remove();
 		hbus->state = hv_pcibus_removed;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/hotplug/rpadlpar_core.c linux-libre-5.1.21-gnu/drivers/pci/hotplug/rpadlpar_core.c
--- linux-libre-5.1-gnu/drivers/pci/hotplug/rpadlpar_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/hotplug/rpadlpar_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -51,6 +51,7 @@ static struct device_node *find_vio_slot
 		if (rc == 0)
 			break;
 	}
+	of_node_put(parent);
 
 	return dn;
 }
@@ -71,6 +72,7 @@ static struct device_node *find_php_slot
 	return np;
 }
 
+/* Returns a device_node with its reference count incremented */
 static struct device_node *find_dlpar_node(char *drc_name, int *node_type)
 {
 	struct device_node *dn;
@@ -306,6 +308,7 @@ int dlpar_add_slot(char *drc_name)
 			rc = dlpar_add_phb(drc_name, dn);
 			break;
 	}
+	of_node_put(dn);
 
 	printk(KERN_INFO "%s: slot %s added\n", DLPAR_MODULE_NAME, drc_name);
 exit:
@@ -439,6 +442,7 @@ int dlpar_remove_slot(char *drc_name)
 			rc = dlpar_remove_pci_slot(drc_name, dn);
 			break;
 	}
+	of_node_put(dn);
 	vm_unmap_aliases();
 
 	printk(KERN_INFO "%s: slot %s removed\n", DLPAR_MODULE_NAME, drc_name);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/pci-acpi.c linux-libre-5.1.21-gnu/drivers/pci/pci-acpi.c
--- linux-libre-5.1-gnu/drivers/pci/pci-acpi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/pci-acpi.c	2019-07-28 02:28:39.000000000 -0400
@@ -666,7 +666,8 @@ static bool acpi_pci_need_resume(struct
 	if (!adev || !acpi_device_power_manageable(adev))
 		return false;
 
-	if (device_may_wakeup(&dev->dev) != !!adev->wakeup.prepare_count)
+	if (adev->wakeup.flags.valid &&
+	    device_may_wakeup(&dev->dev) != !!adev->wakeup.prepare_count)
 		return true;
 
 	if (acpi_target_system_state() == ACPI_STATE_S0)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/pci.c linux-libre-5.1.21-gnu/drivers/pci/pci.c
--- linux-libre-5.1-gnu/drivers/pci/pci.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/pci.c	2019-07-28 02:28:39.000000000 -0400
@@ -999,15 +999,10 @@ static void __pci_start_power_transition
 	if (state == PCI_D0) {
 		pci_platform_power_transition(dev, PCI_D0);
 		/*
-		 * Mandatory power management transition delays, see
-		 * PCI Express Base Specification Revision 2.0 Section
-		 * 6.6.1: Conventional Reset.  Do not delay for
-		 * devices powered on/off by corresponding bridge,
-		 * because have already delayed for the bridge.
+		 * Mandatory power management transition delays are
+		 * handled in the PCIe portdrv resume hooks.
 		 */
 		if (dev->runtime_d3cold) {
-			if (dev->d3cold_delay && !dev->imm_ready)
-				msleep(dev->d3cold_delay);
 			/*
 			 * When powering on a bridge from D3cold, the
 			 * whole hierarchy may be powered on into
@@ -2057,6 +2052,13 @@ static void pci_pme_list_scan(struct wor
 			 */
 			if (bridge && bridge->current_state != PCI_D0)
 				continue;
+			/*
+			 * If the device is in D3cold it should not be
+			 * polled either.
+			 */
+			if (pme_dev->dev->current_state == PCI_D3cold)
+				continue;
+
 			pci_pme_wakeup(pme_dev->dev, NULL);
 		} else {
 			list_del(&pme_dev->list);
@@ -4581,14 +4583,16 @@ static int pci_pm_reset(struct pci_dev *
 
 	return pci_dev_wait(dev, "PM D3->D0", PCIE_RESET_READY_POLL_MS);
 }
+
 /**
- * pcie_wait_for_link - Wait until link is active or inactive
+ * pcie_wait_for_link_delay - Wait until link is active or inactive
  * @pdev: Bridge device
  * @active: waiting for active or inactive?
+ * @delay: Delay to wait after link has become active (in ms)
  *
  * Use this to wait till link becomes active or inactive.
  */
-bool pcie_wait_for_link(struct pci_dev *pdev, bool active)
+bool pcie_wait_for_link_delay(struct pci_dev *pdev, bool active, int delay)
 {
 	int timeout = 1000;
 	bool ret;
@@ -4625,13 +4629,25 @@ bool pcie_wait_for_link(struct pci_dev *
 		timeout -= 10;
 	}
 	if (active && ret)
-		msleep(100);
+		msleep(delay);
 	else if (ret != active)
 		pci_info(pdev, "Data Link Layer Link Active not %s in 1000 msec\n",
 			active ? "set" : "cleared");
 	return ret == active;
 }
 
+/**
+ * pcie_wait_for_link - Wait until link is active or inactive
+ * @pdev: Bridge device
+ * @active: waiting for active or inactive?
+ *
+ * Use this to wait till link becomes active or inactive.
+ */
+bool pcie_wait_for_link(struct pci_dev *pdev, bool active)
+{
+	return pcie_wait_for_link_delay(pdev, active, 100);
+}
+
 void pci_reset_secondary_bus(struct pci_dev *dev)
 {
 	u16 ctrl;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/pcie/aspm.c linux-libre-5.1.21-gnu/drivers/pci/pcie/aspm.c
--- linux-libre-5.1-gnu/drivers/pci/pcie/aspm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/pcie/aspm.c	2019-07-28 02:28:39.000000000 -0400
@@ -196,6 +196,38 @@ static void pcie_clkpm_cap_init(struct p
 	link->clkpm_capable = (blacklist) ? 0 : capable;
 }
 
+static bool pcie_retrain_link(struct pcie_link_state *link)
+{
+	struct pci_dev *parent = link->pdev;
+	unsigned long start_jiffies;
+	u16 reg16;
+
+	pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &reg16);
+	reg16 |= PCI_EXP_LNKCTL_RL;
+	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
+	if (parent->clear_retrain_link) {
+		/*
+		 * Due to an erratum in some devices the Retrain Link bit
+		 * needs to be cleared again manually to allow the link
+		 * training to succeed.
+		 */
+		reg16 &= ~PCI_EXP_LNKCTL_RL;
+		pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
+	}
+
+	/* Wait for link training end. Break out after waiting for timeout */
+	start_jiffies = jiffies;
+	for (;;) {
+		pcie_capability_read_word(parent, PCI_EXP_LNKSTA, &reg16);
+		if (!(reg16 & PCI_EXP_LNKSTA_LT))
+			break;
+		if (time_after(jiffies, start_jiffies + LINK_RETRAIN_TIMEOUT))
+			break;
+		msleep(1);
+	}
+	return !(reg16 & PCI_EXP_LNKSTA_LT);
+}
+
 /*
  * pcie_aspm_configure_common_clock: check if the 2 ends of a link
  *   could use common clock. If they are, configure them to use the
@@ -205,7 +237,6 @@ static void pcie_aspm_configure_common_c
 {
 	int same_clock = 1;
 	u16 reg16, parent_reg, child_reg[8];
-	unsigned long start_jiffies;
 	struct pci_dev *child, *parent = link->pdev;
 	struct pci_bus *linkbus = parent->subordinate;
 	/*
@@ -263,21 +294,7 @@ static void pcie_aspm_configure_common_c
 		reg16 &= ~PCI_EXP_LNKCTL_CCC;
 	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
 
-	/* Retrain link */
-	reg16 |= PCI_EXP_LNKCTL_RL;
-	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
-
-	/* Wait for link training end. Break out after waiting for timeout */
-	start_jiffies = jiffies;
-	for (;;) {
-		pcie_capability_read_word(parent, PCI_EXP_LNKSTA, &reg16);
-		if (!(reg16 & PCI_EXP_LNKSTA_LT))
-			break;
-		if (time_after(jiffies, start_jiffies + LINK_RETRAIN_TIMEOUT))
-			break;
-		msleep(1);
-	}
-	if (!(reg16 & PCI_EXP_LNKSTA_LT))
+	if (pcie_retrain_link(link))
 		return;
 
 	/* Training failed. Restore common clock configurations */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/pcie/portdrv_core.c linux-libre-5.1.21-gnu/drivers/pci/pcie/portdrv_core.c
--- linux-libre-5.1-gnu/drivers/pci/pcie/portdrv_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/pcie/portdrv_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -9,6 +9,7 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/kernel.h>
+#include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
@@ -378,6 +379,67 @@ static int pm_iter(struct device *dev, v
 	return 0;
 }
 
+static int get_downstream_delay(struct pci_bus *bus)
+{
+	struct pci_dev *pdev;
+	int min_delay = 100;
+	int max_delay = 0;
+
+	list_for_each_entry(pdev, &bus->devices, bus_list) {
+		if (!pdev->imm_ready)
+			min_delay = 0;
+		else if (pdev->d3cold_delay < min_delay)
+			min_delay = pdev->d3cold_delay;
+		if (pdev->d3cold_delay > max_delay)
+			max_delay = pdev->d3cold_delay;
+	}
+
+	return max(min_delay, max_delay);
+}
+
+/*
+ * wait_for_downstream_link - Wait for downstream link to establish
+ * @pdev: PCIe port whose downstream link is waited
+ *
+ * Handle delays according to PCIe 4.0 section 6.6.1 before configuration
+ * access to the downstream component is permitted.
+ *
+ * This blocks PCI core resume of the hierarchy below this port until the
+ * link is trained. Should be called before resuming port services to
+ * prevent pciehp from starting to tear-down the hierarchy too soon.
+ */
+static void wait_for_downstream_link(struct pci_dev *pdev)
+{
+	int delay;
+
+	if (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT &&
+	    pci_pcie_type(pdev) != PCI_EXP_TYPE_DOWNSTREAM)
+		return;
+
+	if (pci_dev_is_disconnected(pdev))
+		return;
+
+	if (!pdev->subordinate || list_empty(&pdev->subordinate->devices) ||
+	    !pdev->bridge_d3)
+		return;
+
+	delay = get_downstream_delay(pdev->subordinate);
+	if (!delay)
+		return;
+
+	dev_dbg(&pdev->dev, "waiting downstream link for %d ms\n", delay);
+
+	/*
+	 * If downstream port does not support speeds greater than 5 GT/s
+	 * need to wait 100ms. For higher speeds (gen3) we need to wait
+	 * first for the data link layer to become active.
+	 */
+	if (pcie_get_speed_cap(pdev) <= PCIE_SPEED_5_0GT)
+		msleep(delay);
+	else
+		pcie_wait_for_link_delay(pdev, true, delay);
+}
+
 /**
  * pcie_port_device_suspend - suspend port services associated with a PCIe port
  * @dev: PCI Express port to handle
@@ -391,6 +453,8 @@ int pcie_port_device_suspend(struct devi
 int pcie_port_device_resume_noirq(struct device *dev)
 {
 	size_t off = offsetof(struct pcie_port_service_driver, resume_noirq);
+
+	wait_for_downstream_link(to_pci_dev(dev));
 	return device_for_each_child(dev, &off, pm_iter);
 }
 
@@ -421,6 +485,8 @@ int pcie_port_device_runtime_suspend(str
 int pcie_port_device_runtime_resume(struct device *dev)
 {
 	size_t off = offsetof(struct pcie_port_service_driver, runtime_resume);
+
+	wait_for_downstream_link(to_pci_dev(dev));
 	return device_for_each_child(dev, &off, pm_iter);
 }
 #endif /* PM */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/pci.h linux-libre-5.1.21-gnu/drivers/pci/pci.h
--- linux-libre-5.1-gnu/drivers/pci/pci.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/pci.h	2019-07-28 02:28:39.000000000 -0400
@@ -493,6 +493,7 @@ static inline int pci_dev_specific_disab
 void pcie_do_recovery(struct pci_dev *dev, enum pci_channel_state state,
 		      u32 service);
 
+bool pcie_wait_for_link_delay(struct pci_dev *pdev, bool active, int delay);
 bool pcie_wait_for_link(struct pci_dev *pdev, bool active);
 #ifdef CONFIG_PCIEASPM
 void pcie_aspm_init_link_state(struct pci_dev *pdev);
@@ -597,7 +598,7 @@ void pci_aer_clear_fatal_status(struct p
 void pci_aer_clear_device_status(struct pci_dev *dev);
 #else
 static inline void pci_no_aer(void) { }
-static inline int pci_aer_init(struct pci_dev *d) { return -ENODEV; }
+static inline void pci_aer_init(struct pci_dev *d) { }
 static inline void pci_aer_exit(struct pci_dev *d) { }
 static inline void pci_aer_clear_fatal_status(struct pci_dev *dev) { }
 static inline void pci_aer_clear_device_status(struct pci_dev *dev) { }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/probe.c linux-libre-5.1.21-gnu/drivers/pci/probe.c
--- linux-libre-5.1-gnu/drivers/pci/probe.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/probe.c	2019-07-28 02:28:39.000000000 -0400
@@ -586,16 +586,9 @@ static void pci_release_host_bridge_dev(
 	kfree(to_pci_host_bridge(dev));
 }
 
-struct pci_host_bridge *pci_alloc_host_bridge(size_t priv)
+static void pci_init_host_bridge(struct pci_host_bridge *bridge)
 {
-	struct pci_host_bridge *bridge;
-
-	bridge = kzalloc(sizeof(*bridge) + priv, GFP_KERNEL);
-	if (!bridge)
-		return NULL;
-
 	INIT_LIST_HEAD(&bridge->windows);
-	bridge->dev.release = pci_release_host_bridge_dev;
 
 	/*
 	 * We assume we can manage these PCIe features.  Some systems may
@@ -608,6 +601,18 @@ struct pci_host_bridge *pci_alloc_host_b
 	bridge->native_shpc_hotplug = 1;
 	bridge->native_pme = 1;
 	bridge->native_ltr = 1;
+}
+
+struct pci_host_bridge *pci_alloc_host_bridge(size_t priv)
+{
+	struct pci_host_bridge *bridge;
+
+	bridge = kzalloc(sizeof(*bridge) + priv, GFP_KERNEL);
+	if (!bridge)
+		return NULL;
+
+	pci_init_host_bridge(bridge);
+	bridge->dev.release = pci_release_host_bridge_dev;
 
 	return bridge;
 }
@@ -622,7 +627,7 @@ struct pci_host_bridge *devm_pci_alloc_h
 	if (!bridge)
 		return NULL;
 
-	INIT_LIST_HEAD(&bridge->windows);
+	pci_init_host_bridge(bridge);
 	bridge->dev.release = devm_pci_release_host_bridge_dev;
 
 	return bridge;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/quirks.c linux-libre-5.1.21-gnu/drivers/pci/quirks.c
--- linux-libre-5.1-gnu/drivers/pci/quirks.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/quirks.c	2019-07-28 02:28:39.000000000 -0400
@@ -2245,6 +2245,23 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IN
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
 
+/*
+ * Some Pericom PCIe-to-PCI bridges in reverse mode need the PCIe Retrain
+ * Link bit cleared after starting the link retrain process to allow this
+ * process to finish.
+ *
+ * Affected devices: PI7C9X110, PI7C9X111SL, PI7C9X130.  See also the
+ * Pericom Errata Sheet PI7C9X111SLB_errata_rev1.2_102711.pdf.
+ */
+static void quirk_enable_clear_retrain_link(struct pci_dev *dev)
+{
+	dev->clear_retrain_link = 1;
+	pci_info(dev, "Enable PCIe Retrain Link quirk\n");
+}
+DECLARE_PCI_FIXUP_HEADER(0x12d8, 0xe110, quirk_enable_clear_retrain_link);
+DECLARE_PCI_FIXUP_HEADER(0x12d8, 0xe111, quirk_enable_clear_retrain_link);
+DECLARE_PCI_FIXUP_HEADER(0x12d8, 0xe130, quirk_enable_clear_retrain_link);
+
 static void fixup_rev1_53c810(struct pci_dev *dev)
 {
 	u32 class = dev->class;
@@ -3408,6 +3425,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_A
 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);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0034, quirk_no_bus_reset);
 
 /*
  * Root port on some Cavium CN8xxx chips do not successfully complete a bus
@@ -4905,6 +4923,7 @@ static void quirk_no_ats(struct pci_dev
 
 /* AMD Stoney platform GPU */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_no_ats);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */
@@ -5122,3 +5141,61 @@ SWITCHTEC_QUIRK(0x8573);  /* PFXI 48XG3
 SWITCHTEC_QUIRK(0x8574);  /* PFXI 64XG3 */
 SWITCHTEC_QUIRK(0x8575);  /* PFXI 80XG3 */
 SWITCHTEC_QUIRK(0x8576);  /* PFXI 96XG3 */
+
+/*
+ * On Lenovo Thinkpad P50 SKUs with a Nvidia Quadro M1000M, the BIOS does
+ * not always reset the secondary Nvidia GPU between reboots if the system
+ * is configured to use Hybrid Graphics mode.  This results in the GPU
+ * being left in whatever state it was in during the *previous* boot, which
+ * causes spurious interrupts from the GPU, which in turn causes us to
+ * disable the wrong IRQ and end up breaking the touchpad.  Unsurprisingly,
+ * this also completely breaks nouveau.
+ *
+ * Luckily, it seems a simple reset of the Nvidia GPU brings it back to a
+ * clean state and fixes all these issues.
+ *
+ * When the machine is configured in Dedicated display mode, the issue
+ * doesn't occur.  Fortunately the GPU advertises NoReset+ when in this
+ * mode, so we can detect that and avoid resetting it.
+ */
+static void quirk_reset_lenovo_thinkpad_p50_nvgpu(struct pci_dev *pdev)
+{
+	void __iomem *map;
+	int ret;
+
+	if (pdev->subsystem_vendor != PCI_VENDOR_ID_LENOVO ||
+	    pdev->subsystem_device != 0x222e ||
+	    !pdev->reset_fn)
+		return;
+
+	if (pci_enable_device_mem(pdev))
+		return;
+
+	/*
+	 * Based on nvkm_device_ctor() in
+	 * drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+	 */
+	map = pci_iomap(pdev, 0, 0x23000);
+	if (!map) {
+		pci_err(pdev, "Can't map MMIO space\n");
+		goto out_disable;
+	}
+
+	/*
+	 * Make sure the GPU looks like it's been POSTed before resetting
+	 * it.
+	 */
+	if (ioread32(map + 0x2240c) & 0x2) {
+		pci_info(pdev, FW_BUG "GPU left initialized by EFI, resetting\n");
+		ret = pci_reset_function(pdev);
+		if (ret < 0)
+			pci_err(pdev, "Failed to reset GPU: %d\n", ret);
+	}
+
+	iounmap(map);
+out_disable:
+	pci_disable_device(pdev);
+}
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1,
+			      PCI_CLASS_DISPLAY_VGA, 8,
+			      quirk_reset_lenovo_thinkpad_p50_nvgpu);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pci/switch/switchtec.c linux-libre-5.1.21-gnu/drivers/pci/switch/switchtec.c
--- linux-libre-5.1-gnu/drivers/pci/switch/switchtec.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pci/switch/switchtec.c	2019-07-28 02:28:39.000000000 -0400
@@ -1162,7 +1162,8 @@ static int mask_event(struct switchtec_d
 	if (!(hdr & SWITCHTEC_EVENT_OCCURRED && hdr & SWITCHTEC_EVENT_EN_IRQ))
 		return 0;
 
-	if (eid == SWITCHTEC_IOCTL_EVENT_LINK_STATE)
+	if (eid == SWITCHTEC_IOCTL_EVENT_LINK_STATE ||
+	    eid == SWITCHTEC_IOCTL_EVENT_MRPC_COMP)
 		return 0;
 
 	dev_dbg(&stdev->dev, "%s: %d %d %x\n", __func__, eid, idx, hdr);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/perf/arm-cci.c linux-libre-5.1.21-gnu/drivers/perf/arm-cci.c
--- linux-libre-5.1-gnu/drivers/perf/arm-cci.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/perf/arm-cci.c	2019-07-28 02:28:39.000000000 -0400
@@ -1684,21 +1684,24 @@ static int cci_pmu_probe(struct platform
 	raw_spin_lock_init(&cci_pmu->hw_events.pmu_lock);
 	mutex_init(&cci_pmu->reserve_mutex);
 	atomic_set(&cci_pmu->active_events, 0);
-	cci_pmu->cpu = get_cpu();
-
-	ret = cci_pmu_init(cci_pmu, pdev);
-	if (ret) {
-		put_cpu();
-		return ret;
-	}
 
+	cci_pmu->cpu = raw_smp_processor_id();
+	g_cci_pmu = cci_pmu;
 	cpuhp_setup_state_nocalls(CPUHP_AP_PERF_ARM_CCI_ONLINE,
 				  "perf/arm/cci:online", NULL,
 				  cci_pmu_offline_cpu);
-	put_cpu();
-	g_cci_pmu = cci_pmu;
+
+	ret = cci_pmu_init(cci_pmu, pdev);
+	if (ret)
+		goto error_pmu_init;
+
 	pr_info("ARM %s PMU driver probed", cci_pmu->model->name);
 	return 0;
+
+error_pmu_init:
+	cpuhp_remove_state(CPUHP_AP_PERF_ARM_CCI_ONLINE);
+	g_cci_pmu = NULL;
+	return ret;
 }
 
 static int cci_pmu_remove(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/perf/arm_spe_pmu.c linux-libre-5.1.21-gnu/drivers/perf/arm_spe_pmu.c
--- linux-libre-5.1-gnu/drivers/perf/arm_spe_pmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/perf/arm_spe_pmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -855,16 +855,8 @@ static void *arm_spe_pmu_setup_aux(struc
 	if (!pglist)
 		goto out_free_buf;
 
-	for (i = 0; i < nr_pages; ++i) {
-		struct page *page = virt_to_page(pages[i]);
-
-		if (PagePrivate(page)) {
-			pr_warn("unexpected high-order page for auxbuf!");
-			goto out_free_pglist;
-		}
-
+	for (i = 0; i < nr_pages; ++i)
 		pglist[i] = virt_to_page(pages[i]);
-	}
 
 	buf->base = vmap(pglist, nr_pages, VM_MAP, PAGE_KERNEL);
 	if (!buf->base)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/phy/allwinner/phy-sun4i-usb.c linux-libre-5.1.21-gnu/drivers/phy/allwinner/phy-sun4i-usb.c
--- linux-libre-5.1-gnu/drivers/phy/allwinner/phy-sun4i-usb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/phy/allwinner/phy-sun4i-usb.c	2019-07-28 02:28:39.000000000 -0400
@@ -554,6 +554,7 @@ static void sun4i_usb_phy0_id_vbus_det_s
 	struct sun4i_usb_phy_data *data =
 		container_of(work, struct sun4i_usb_phy_data, detect.work);
 	struct phy *phy0 = data->phys[0].phy;
+	struct sun4i_usb_phy *phy = phy_get_drvdata(phy0);
 	bool force_session_end, id_notify = false, vbus_notify = false;
 	int id_det, vbus_det;
 
@@ -610,6 +611,9 @@ static void sun4i_usb_phy0_id_vbus_det_s
 			mutex_unlock(&phy0->mutex);
 		}
 
+		/* Enable PHY0 passby for host mode only. */
+		sun4i_usb_phy_passby(phy, !id_det);
+
 		/* Re-route PHY0 if necessary */
 		if (data->cfg->phy0_dual_route)
 			sun4i_usb_phy0_reroute(data, id_det);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/phy/motorola/Kconfig linux-libre-5.1.21-gnu/drivers/phy/motorola/Kconfig
--- linux-libre-5.1-gnu/drivers/phy/motorola/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/phy/motorola/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -13,7 +13,7 @@ config PHY_CPCAP_USB
 
 config PHY_MAPPHONE_MDM6600
 	tristate "Motorola Mapphone MDM6600 modem USB PHY driver"
-	depends on OF && USB_SUPPORT
+	depends on OF && USB_SUPPORT && GPIOLIB
 	select GENERIC_PHY
 	help
 	  Enable this for MDM6600 USB modem to work on Motorola phones
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/phy/ti/Kconfig linux-libre-5.1.21-gnu/drivers/phy/ti/Kconfig
--- linux-libre-5.1-gnu/drivers/phy/ti/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/phy/ti/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -37,7 +37,7 @@ config OMAP_USB2
 	depends on USB_SUPPORT
 	select GENERIC_PHY
 	select USB_PHY
-	select OMAP_CONTROL_PHY if ARCH_OMAP2PLUS
+	select OMAP_CONTROL_PHY if ARCH_OMAP2PLUS || COMPILE_TEST
 	help
 	  Enable this to support the transceiver that is part of SOC. This
 	  driver takes care of all the PHY functionality apart from comparator.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/phy/ti/phy-ti-pipe3.c linux-libre-5.1.21-gnu/drivers/phy/ti/phy-ti-pipe3.c
--- linux-libre-5.1-gnu/drivers/phy/ti/phy-ti-pipe3.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/phy/ti/phy-ti-pipe3.c	2019-07-28 02:28:39.000000000 -0400
@@ -303,7 +303,7 @@ static void ti_pipe3_calibrate(struct ti
 
 	val = ti_pipe3_readl(phy->phy_rx, PCIEPHYRX_ANA_PROGRAMMABILITY);
 	val &= ~(INTERFACE_MASK | LOSD_MASK | MEM_PLLDIV);
-	val = (0x1 << INTERFACE_SHIFT | 0xA << LOSD_SHIFT);
+	val |= (0x1 << INTERFACE_SHIFT | 0xA << LOSD_SHIFT);
 	ti_pipe3_writel(phy->phy_rx, PCIEPHYRX_ANA_PROGRAMMABILITY, val);
 
 	val = ti_pipe3_readl(phy->phy_rx, PCIEPHYRX_DIGITAL_MODES);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/intel/pinctrl-intel.c linux-libre-5.1.21-gnu/drivers/pinctrl/intel/pinctrl-intel.c
--- linux-libre-5.1-gnu/drivers/pinctrl/intel/pinctrl-intel.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/intel/pinctrl-intel.c	2019-07-28 02:28:39.000000000 -0400
@@ -913,35 +913,6 @@ static void intel_gpio_irq_ack(struct ir
 	}
 }
 
-static void intel_gpio_irq_enable(struct irq_data *d)
-{
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
-	const struct intel_community *community;
-	const struct intel_padgroup *padgrp;
-	int pin;
-
-	pin = intel_gpio_to_pin(pctrl, irqd_to_hwirq(d), &community, &padgrp);
-	if (pin >= 0) {
-		unsigned int gpp, gpp_offset, is_offset;
-		unsigned long flags;
-		u32 value;
-
-		gpp = padgrp->reg_num;
-		gpp_offset = padgroup_offset(padgrp, pin);
-		is_offset = community->is_offset + gpp * 4;
-
-		raw_spin_lock_irqsave(&pctrl->lock, flags);
-		/* Clear interrupt status first to avoid unexpected interrupt */
-		writel(BIT(gpp_offset), community->regs + is_offset);
-
-		value = readl(community->regs + community->ie_offset + gpp * 4);
-		value |= BIT(gpp_offset);
-		writel(value, community->regs + community->ie_offset + gpp * 4);
-		raw_spin_unlock_irqrestore(&pctrl->lock, flags);
-	}
-}
-
 static void intel_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
@@ -954,15 +925,20 @@ static void intel_gpio_irq_mask_unmask(s
 	if (pin >= 0) {
 		unsigned int gpp, gpp_offset;
 		unsigned long flags;
-		void __iomem *reg;
+		void __iomem *reg, *is;
 		u32 value;
 
 		gpp = padgrp->reg_num;
 		gpp_offset = padgroup_offset(padgrp, pin);
 
 		reg = community->regs + community->ie_offset + gpp * 4;
+		is = community->regs + community->is_offset + gpp * 4;
 
 		raw_spin_lock_irqsave(&pctrl->lock, flags);
+
+		/* Clear interrupt status first to avoid unexpected interrupt */
+		writel(BIT(gpp_offset), is);
+
 		value = readl(reg);
 		if (mask)
 			value &= ~BIT(gpp_offset);
@@ -1106,7 +1082,6 @@ static irqreturn_t intel_gpio_irq(int ir
 
 static struct irq_chip intel_gpio_irqchip = {
 	.name = "intel-gpio",
-	.irq_enable = intel_gpio_irq_enable,
 	.irq_ack = intel_gpio_irq_ack,
 	.irq_mask = intel_gpio_irq_mask,
 	.irq_unmask = intel_gpio_irq_unmask,
@@ -1466,7 +1441,7 @@ static bool intel_pinctrl_should_save(st
 	return false;
 }
 
-int intel_pinctrl_suspend(struct device *dev)
+int intel_pinctrl_suspend_noirq(struct device *dev)
 {
 	struct intel_pinctrl *pctrl = dev_get_drvdata(dev);
 	struct intel_community_context *communities;
@@ -1505,7 +1480,7 @@ int intel_pinctrl_suspend(struct device
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(intel_pinctrl_suspend);
+EXPORT_SYMBOL_GPL(intel_pinctrl_suspend_noirq);
 
 static void intel_gpio_irq_init(struct intel_pinctrl *pctrl)
 {
@@ -1527,7 +1502,7 @@ static void intel_gpio_irq_init(struct i
 	}
 }
 
-int intel_pinctrl_resume(struct device *dev)
+int intel_pinctrl_resume_noirq(struct device *dev)
 {
 	struct intel_pinctrl *pctrl = dev_get_drvdata(dev);
 	const struct intel_community_context *communities;
@@ -1589,7 +1564,7 @@ int intel_pinctrl_resume(struct device *
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(intel_pinctrl_resume);
+EXPORT_SYMBOL_GPL(intel_pinctrl_resume_noirq);
 #endif
 
 MODULE_AUTHOR("Mathias Nyman <mathias.nyman@linux.intel.com>");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/intel/pinctrl-intel.h linux-libre-5.1.21-gnu/drivers/pinctrl/intel/pinctrl-intel.h
--- linux-libre-5.1-gnu/drivers/pinctrl/intel/pinctrl-intel.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/intel/pinctrl-intel.h	2019-07-28 02:28:39.000000000 -0400
@@ -177,13 +177,14 @@ int intel_pinctrl_probe_by_hid(struct pl
 int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
 
 #ifdef CONFIG_PM_SLEEP
-int intel_pinctrl_suspend(struct device *dev);
-int intel_pinctrl_resume(struct device *dev);
+int intel_pinctrl_suspend_noirq(struct device *dev);
+int intel_pinctrl_resume_noirq(struct device *dev);
 #endif
 
-#define INTEL_PINCTRL_PM_OPS(_name)						  \
-const struct dev_pm_ops _name = {						  \
-	SET_LATE_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend, intel_pinctrl_resume) \
+#define INTEL_PINCTRL_PM_OPS(_name)					\
+const struct dev_pm_ops _name = {					\
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend_noirq,	\
+				      intel_pinctrl_resume_noirq)	\
 }
 
 #endif /* PINCTRL_INTEL_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/mediatek/mtk-eint.c linux-libre-5.1.21-gnu/drivers/pinctrl/mediatek/mtk-eint.c
--- linux-libre-5.1-gnu/drivers/pinctrl/mediatek/mtk-eint.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/mediatek/mtk-eint.c	2019-07-28 02:28:39.000000000 -0400
@@ -113,6 +113,8 @@ static void mtk_eint_mask(struct irq_dat
 	void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,
 						eint->regs->mask_set);
 
+	eint->cur_mask[d->hwirq >> 5] &= ~mask;
+
 	writel(mask, reg);
 }
 
@@ -123,6 +125,8 @@ static void mtk_eint_unmask(struct irq_d
 	void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,
 						eint->regs->mask_clr);
 
+	eint->cur_mask[d->hwirq >> 5] |= mask;
+
 	writel(mask, reg);
 
 	if (eint->dual_edge[d->hwirq])
@@ -217,19 +221,6 @@ static void mtk_eint_chip_write_mask(con
 	}
 }
 
-static void mtk_eint_chip_read_mask(const struct mtk_eint *eint,
-				    void __iomem *base, u32 *buf)
-{
-	int port;
-	void __iomem *reg;
-
-	for (port = 0; port < eint->hw->ports; port++) {
-		reg = base + eint->regs->mask + (port << 2);
-		buf[port] = ~readl_relaxed(reg);
-		/* Mask is 0 when irq is enabled, and 1 when disabled. */
-	}
-}
-
 static int mtk_eint_irq_request_resources(struct irq_data *d)
 {
 	struct mtk_eint *eint = irq_data_get_irq_chip_data(d);
@@ -318,7 +309,7 @@ static void mtk_eint_irq_handler(struct
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	struct mtk_eint *eint = irq_desc_get_handler_data(desc);
 	unsigned int status, eint_num;
-	int offset, index, virq;
+	int offset, mask_offset, index, virq;
 	void __iomem *reg =  mtk_eint_get_offset(eint, 0, eint->regs->stat);
 	int dual_edge, start_level, curr_level;
 
@@ -328,10 +319,24 @@ static void mtk_eint_irq_handler(struct
 		status = readl(reg);
 		while (status) {
 			offset = __ffs(status);
+			mask_offset = eint_num >> 5;
 			index = eint_num + offset;
 			virq = irq_find_mapping(eint->domain, index);
 			status &= ~BIT(offset);
 
+			/*
+			 * If we get an interrupt on pin that was only required
+			 * for wake (but no real interrupt requested), mask the
+			 * interrupt (as would mtk_eint_resume do anyway later
+			 * in the resume sequence).
+			 */
+			if (eint->wake_mask[mask_offset] & BIT(offset) &&
+			    !(eint->cur_mask[mask_offset] & BIT(offset))) {
+				writel_relaxed(BIT(offset), reg -
+					eint->regs->stat +
+					eint->regs->mask_set);
+			}
+
 			dual_edge = eint->dual_edge[index];
 			if (dual_edge) {
 				/*
@@ -370,7 +375,6 @@ static void mtk_eint_irq_handler(struct
 
 int mtk_eint_do_suspend(struct mtk_eint *eint)
 {
-	mtk_eint_chip_read_mask(eint, eint->base, eint->cur_mask);
 	mtk_eint_chip_write_mask(eint, eint->base, eint->wake_mask);
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/pinctrl-mcp23s08.c linux-libre-5.1.21-gnu/drivers/pinctrl/pinctrl-mcp23s08.c
--- linux-libre-5.1-gnu/drivers/pinctrl/pinctrl-mcp23s08.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/pinctrl-mcp23s08.c	2019-07-28 02:28:39.000000000 -0400
@@ -881,6 +881,10 @@ static int mcp23s08_probe_one(struct mcp
 	if (ret < 0)
 		goto fail;
 
+	ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp);
+	if (ret < 0)
+		goto fail;
+
 	mcp->irq_controller =
 		device_property_read_bool(dev, "interrupt-controller");
 	if (mcp->irq && mcp->irq_controller) {
@@ -922,10 +926,6 @@ static int mcp23s08_probe_one(struct mcp
 			goto fail;
 	}
 
-	ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp);
-	if (ret < 0)
-		goto fail;
-
 	if (one_regmap_config) {
 		mcp->pinctrl_desc.name = devm_kasprintf(dev, GFP_KERNEL,
 				"mcp23xxx-pinctrl.%d", raw_chip_address);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/pinctrl-ocelot.c linux-libre-5.1.21-gnu/drivers/pinctrl/pinctrl-ocelot.c
--- linux-libre-5.1-gnu/drivers/pinctrl/pinctrl-ocelot.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/pinctrl-ocelot.c	2019-07-28 02:28:39.000000000 -0400
@@ -396,7 +396,7 @@ static int ocelot_pin_function_idx(struc
 	return -1;
 }
 
-#define REG(r, info, p) ((r) * (info)->stride + (4 * ((p) / 32)))
+#define REG_ALT(msb, info, p) (OCELOT_GPIO_ALT0 * (info)->stride + 4 * ((msb) + ((info)->stride * ((p) / 32))))
 
 static int ocelot_pinmux_set_mux(struct pinctrl_dev *pctldev,
 				 unsigned int selector, unsigned int group)
@@ -412,19 +412,21 @@ static int ocelot_pinmux_set_mux(struct
 
 	/*
 	 * f is encoded on two bits.
-	 * bit 0 of f goes in BIT(pin) of ALT0, bit 1 of f goes in BIT(pin) of
-	 * ALT1
+	 * bit 0 of f goes in BIT(pin) of ALT[0], bit 1 of f goes in BIT(pin) of
+	 * ALT[1]
 	 * This is racy because both registers can't be updated at the same time
 	 * but it doesn't matter much for now.
 	 */
-	regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT0, info, pin->pin),
+	regmap_update_bits(info->map, REG_ALT(0, info, pin->pin),
 			   BIT(p), f << p);
-	regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT1, info, pin->pin),
+	regmap_update_bits(info->map, REG_ALT(1, info, pin->pin),
 			   BIT(p), f << (p - 1));
 
 	return 0;
 }
 
+#define REG(r, info, p) ((r) * (info)->stride + (4 * ((p) / 32)))
+
 static int ocelot_gpio_set_direction(struct pinctrl_dev *pctldev,
 				     struct pinctrl_gpio_range *range,
 				     unsigned int pin, bool input)
@@ -432,7 +434,7 @@ static int ocelot_gpio_set_direction(str
 	struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
 	unsigned int p = pin % 32;
 
-	regmap_update_bits(info->map, REG(OCELOT_GPIO_OE, info, p), BIT(p),
+	regmap_update_bits(info->map, REG(OCELOT_GPIO_OE, info, pin), BIT(p),
 			   input ? 0 : BIT(p));
 
 	return 0;
@@ -445,9 +447,9 @@ static int ocelot_gpio_request_enable(st
 	struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
 	unsigned int p = offset % 32;
 
-	regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT0, info, offset),
+	regmap_update_bits(info->map, REG_ALT(0, info, offset),
 			   BIT(p), 0);
-	regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT1, info, offset),
+	regmap_update_bits(info->map, REG_ALT(1, info, offset),
 			   BIT(p), 0);
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/pinctrl-pistachio.c linux-libre-5.1.21-gnu/drivers/pinctrl/pinctrl-pistachio.c
--- linux-libre-5.1-gnu/drivers/pinctrl/pinctrl-pistachio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/pinctrl-pistachio.c	2019-07-28 02:28:39.000000000 -0400
@@ -1367,6 +1367,7 @@ static int pistachio_gpio_register(struc
 		if (!of_find_property(child, "gpio-controller", NULL)) {
 			dev_err(pctl->dev,
 				"No gpio-controller property for bank %u\n", i);
+			of_node_put(child);
 			ret = -ENODEV;
 			goto err;
 		}
@@ -1374,6 +1375,7 @@ static int pistachio_gpio_register(struc
 		irq = irq_of_parse_and_map(child, 0);
 		if (irq < 0) {
 			dev_err(pctl->dev, "No IRQ for bank %u: %d\n", i, irq);
+			of_node_put(child);
 			ret = irq;
 			goto err;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/pinctrl-st.c linux-libre-5.1.21-gnu/drivers/pinctrl/pinctrl-st.c
--- linux-libre-5.1-gnu/drivers/pinctrl/pinctrl-st.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/pinctrl-st.c	2019-07-28 02:28:39.000000000 -0400
@@ -1170,7 +1170,7 @@ static int st_pctl_dt_parse_groups(struc
 	struct property *pp;
 	struct st_pinconf *conf;
 	struct device_node *pins;
-	int i = 0, npins = 0, nr_props;
+	int i = 0, npins = 0, nr_props, ret = 0;
 
 	pins = of_get_child_by_name(np, "st,pins");
 	if (!pins)
@@ -1185,7 +1185,8 @@ static int st_pctl_dt_parse_groups(struc
 			npins++;
 		} else {
 			pr_warn("Invalid st,pins in %pOFn node\n", np);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto out_put_node;
 		}
 	}
 
@@ -1195,8 +1196,10 @@ static int st_pctl_dt_parse_groups(struc
 	grp->pin_conf = devm_kcalloc(info->dev,
 					npins, sizeof(*conf), GFP_KERNEL);
 
-	if (!grp->pins || !grp->pin_conf)
-		return -ENOMEM;
+	if (!grp->pins || !grp->pin_conf) {
+		ret = -ENOMEM;
+		goto out_put_node;
+	}
 
 	/* <bank offset mux direction rt_type rt_delay rt_clk> */
 	for_each_property_of_node(pins, pp) {
@@ -1229,9 +1232,11 @@ static int st_pctl_dt_parse_groups(struc
 		}
 		i++;
 	}
+
+out_put_node:
 	of_node_put(pins);
 
-	return 0;
+	return ret;
 }
 
 static int st_pctl_parse_functions(struct device_node *np,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/samsung/pinctrl-exynos-arm.c linux-libre-5.1.21-gnu/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
--- linux-libre-5.1-gnu/drivers/pinctrl/samsung/pinctrl-exynos-arm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/samsung/pinctrl-exynos-arm.c	2019-07-28 02:28:39.000000000 -0400
@@ -71,6 +71,7 @@ s5pv210_retention_init(struct samsung_pi
 	}
 
 	clk_base = of_iomap(np, 0);
+	of_node_put(np);
 	if (!clk_base) {
 		pr_err("%s: failed to map clock registers\n", __func__);
 		return ERR_PTR(-EINVAL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pinctrl/zte/pinctrl-zx.c linux-libre-5.1.21-gnu/drivers/pinctrl/zte/pinctrl-zx.c
--- linux-libre-5.1-gnu/drivers/pinctrl/zte/pinctrl-zx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pinctrl/zte/pinctrl-zx.c	2019-07-28 02:28:39.000000000 -0400
@@ -411,6 +411,7 @@ int zx_pinctrl_init(struct platform_devi
 	}
 
 	zpctl->aux_base = of_iomap(np, 0);
+	of_node_put(np);
 	if (!zpctl->aux_base)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/chrome/cros_ec_proto.c linux-libre-5.1.21-gnu/drivers/platform/chrome/cros_ec_proto.c
--- linux-libre-5.1-gnu/drivers/platform/chrome/cros_ec_proto.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/chrome/cros_ec_proto.c	2019-07-28 02:28:39.000000000 -0400
@@ -56,6 +56,17 @@ static int send_command(struct cros_ec_d
 	else
 		xfer_fxn = ec_dev->cmd_xfer;
 
+	if (!xfer_fxn) {
+		/*
+		 * This error can happen if a communication error happened and
+		 * the EC is trying to use protocol v2, on an underlying
+		 * communication mechanism that does not support v2.
+		 */
+		dev_err_once(ec_dev->dev,
+			     "missing EC transfer API, cannot send command\n");
+		return -EIO;
+	}
+
 	ret = (*xfer_fxn)(ec_dev, msg);
 	if (msg->result == EC_RES_IN_PROGRESS) {
 		int i;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/mellanox/mlxreg-hotplug.c linux-libre-5.1.21-gnu/drivers/platform/mellanox/mlxreg-hotplug.c
--- linux-libre-5.1-gnu/drivers/platform/mellanox/mlxreg-hotplug.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/mellanox/mlxreg-hotplug.c	2019-07-28 02:28:39.000000000 -0400
@@ -694,6 +694,7 @@ static int mlxreg_hotplug_remove(struct
 
 	/* Clean interrupts setup. */
 	mlxreg_hotplug_unset_irq(priv);
+	devm_free_irq(&pdev->dev, priv->irq, priv);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/asus-nb-wmi.c linux-libre-5.1.21-gnu/drivers/platform/x86/asus-nb-wmi.c
--- linux-libre-5.1-gnu/drivers/platform/x86/asus-nb-wmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/asus-nb-wmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -78,10 +78,12 @@ static bool asus_q500a_i8042_filter(unsi
 
 static struct quirk_entry quirk_asus_unknown = {
 	.wapf = 0,
+	.wmi_backlight_set_devstate = true,
 };
 
 static struct quirk_entry quirk_asus_q500a = {
 	.i8042_filter = asus_q500a_i8042_filter,
+	.wmi_backlight_set_devstate = true,
 };
 
 /*
@@ -92,26 +94,32 @@ static struct quirk_entry quirk_asus_q50
 static struct quirk_entry quirk_asus_x55u = {
 	.wapf = 4,
 	.wmi_backlight_power = true,
+	.wmi_backlight_set_devstate = true,
 	.no_display_toggle = true,
 };
 
 static struct quirk_entry quirk_asus_wapf4 = {
 	.wapf = 4,
+	.wmi_backlight_set_devstate = true,
 };
 
 static struct quirk_entry quirk_asus_x200ca = {
 	.wapf = 2,
+	.wmi_backlight_set_devstate = true,
 };
 
 static struct quirk_entry quirk_asus_ux303ub = {
 	.wmi_backlight_native = true,
+	.wmi_backlight_set_devstate = true,
 };
 
 static struct quirk_entry quirk_asus_x550lb = {
+	.wmi_backlight_set_devstate = true,
 	.xusb2pr = 0x01D9,
 };
 
 static struct quirk_entry quirk_asus_forceals = {
+	.wmi_backlight_set_devstate = true,
 	.wmi_force_als_set = true,
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/asus-wmi.c linux-libre-5.1.21-gnu/drivers/platform/x86/asus-wmi.c
--- linux-libre-5.1-gnu/drivers/platform/x86/asus-wmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/asus-wmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -2131,7 +2131,7 @@ static int asus_wmi_add(struct platform_
 		err = asus_wmi_backlight_init(asus);
 		if (err && err != -ENODEV)
 			goto fail_backlight;
-	} else
+	} else if (asus->driver->quirks->wmi_backlight_set_devstate)
 		err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
 
 	status = wmi_install_notify_handler(asus->driver->event_guid,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/asus-wmi.h linux-libre-5.1.21-gnu/drivers/platform/x86/asus-wmi.h
--- linux-libre-5.1-gnu/drivers/platform/x86/asus-wmi.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/asus-wmi.h	2019-07-28 02:28:39.000000000 -0400
@@ -44,6 +44,7 @@ struct quirk_entry {
 	bool store_backlight_power;
 	bool wmi_backlight_power;
 	bool wmi_backlight_native;
+	bool wmi_backlight_set_devstate;
 	bool wmi_force_als_set;
 	int wapf;
 	/*
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/dell-laptop.c linux-libre-5.1.21-gnu/drivers/platform/x86/dell-laptop.c
--- linux-libre-5.1-gnu/drivers/platform/x86/dell-laptop.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/dell-laptop.c	2019-07-28 02:28:39.000000000 -0400
@@ -531,7 +531,7 @@ static void dell_rfkill_query(struct rfk
 		return;
 	}
 
-	dell_fill_request(&buffer, 0, 0x2, 0, 0);
+	dell_fill_request(&buffer, 0x2, 0, 0, 0);
 	ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL);
 	hwswitch = buffer.output[1];
 
@@ -562,7 +562,7 @@ static int dell_debugfs_show(struct seq_
 		return ret;
 	status = buffer.output[1];
 
-	dell_fill_request(&buffer, 0, 0x2, 0, 0);
+	dell_fill_request(&buffer, 0x2, 0, 0, 0);
 	hwswitch_ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL);
 	if (hwswitch_ret)
 		return hwswitch_ret;
@@ -647,7 +647,7 @@ static void dell_update_rfkill(struct wo
 	if (ret != 0)
 		return;
 
-	dell_fill_request(&buffer, 0, 0x2, 0, 0);
+	dell_fill_request(&buffer, 0x2, 0, 0, 0);
 	ret = dell_send_request(&buffer, CLASS_INFO, SELECT_RFKILL);
 
 	if (ret == 0 && (status & BIT(0)))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/intel_pmc_ipc.c linux-libre-5.1.21-gnu/drivers/platform/x86/intel_pmc_ipc.c
--- linux-libre-5.1-gnu/drivers/platform/x86/intel_pmc_ipc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/intel_pmc_ipc.c	2019-07-28 02:28:39.000000000 -0400
@@ -771,13 +771,17 @@ static int ipc_create_pmc_devices(void)
 	if (ret) {
 		dev_err(ipcdev.dev, "Failed to add punit platform device\n");
 		platform_device_unregister(ipcdev.tco_dev);
+		return ret;
 	}
 
 	if (!ipcdev.telem_res_inval) {
 		ret = ipc_create_telemetry_device();
-		if (ret)
+		if (ret) {
 			dev_warn(ipcdev.dev,
 				"Failed to add telemetry platform device\n");
+			platform_device_unregister(ipcdev.punit_dev);
+			platform_device_unregister(ipcdev.tco_dev);
+		}
 	}
 
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/intel-vbtn.c linux-libre-5.1.21-gnu/drivers/platform/x86/intel-vbtn.c
--- linux-libre-5.1-gnu/drivers/platform/x86/intel-vbtn.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/intel-vbtn.c	2019-07-28 02:28:39.000000000 -0400
@@ -76,12 +76,24 @@ static void notify_handler(acpi_handle h
 	struct platform_device *device = context;
 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);
 	unsigned int val = !(event & 1); /* Even=press, Odd=release */
-	const struct key_entry *ke_rel;
+	const struct key_entry *ke, *ke_rel;
 	bool autorelease;
 
 	if (priv->wakeup_mode) {
-		if (sparse_keymap_entry_from_scancode(priv->input_dev, event)) {
+		ke = sparse_keymap_entry_from_scancode(priv->input_dev, event);
+		if (ke) {
 			pm_wakeup_hard_event(&device->dev);
+
+			/*
+			 * Switch events like tablet mode will wake the device
+			 * and report the new switch position to the input
+			 * subsystem.
+			 */
+			if (ke->type == KE_SW)
+				sparse_keymap_report_event(priv->input_dev,
+							   event,
+							   val,
+							   0);
 			return;
 		}
 		goto out_unknown;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/mlx-platform.c linux-libre-5.1.21-gnu/drivers/platform/x86/mlx-platform.c
--- linux-libre-5.1-gnu/drivers/platform/x86/mlx-platform.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/mlx-platform.c	2019-07-28 02:28:39.000000000 -0400
@@ -1828,7 +1828,7 @@ static int __init mlxplat_init(void)
 
 	for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
 		priv->pdev_mux[i] = platform_device_register_resndata(
-						&mlxplat_dev->dev,
+						&priv->pdev_i2c->dev,
 						"i2c-mux-reg", i, NULL,
 						0, &mlxplat_mux_data[i],
 						sizeof(mlxplat_mux_data[i]));
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/pmc_atom.c linux-libre-5.1.21-gnu/drivers/platform/x86/pmc_atom.c
--- linux-libre-5.1-gnu/drivers/platform/x86/pmc_atom.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/pmc_atom.c	2019-07-28 02:28:39.000000000 -0400
@@ -398,12 +398,45 @@ static int pmc_dbgfs_register(struct pmc
  */
 static const struct dmi_system_id critclk_systems[] = {
 	{
+		/* pmc_plt_clk0 is used for an external HSIC USB HUB */
 		.ident = "MPL CEC1x",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "MPL AG"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "CEC10 Family"),
 		},
 	},
+	{
+		/* pmc_plt_clk0 - 3 are used for the 4 ethernet controllers */
+		.ident = "Lex 3I380D",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Lex BayTrail"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "3I380D"),
+		},
+	},
+	{
+		/* pmc_plt_clk* - are used for ethernet controllers */
+		.ident = "Beckhoff CB3163",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Beckhoff Automation"),
+			DMI_MATCH(DMI_BOARD_NAME, "CB3163"),
+		},
+	},
+	{
+		/* pmc_plt_clk* - are used for ethernet controllers */
+		.ident = "Beckhoff CB6263",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Beckhoff Automation"),
+			DMI_MATCH(DMI_BOARD_NAME, "CB6263"),
+		},
+	},
+	{
+		/* pmc_plt_clk* - are used for ethernet controllers */
+		.ident = "Beckhoff CB6363",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Beckhoff Automation"),
+			DMI_MATCH(DMI_BOARD_NAME, "CB6363"),
+		},
+	},
 	{ /*sentinel*/ }
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/sony-laptop.c linux-libre-5.1.21-gnu/drivers/platform/x86/sony-laptop.c
--- linux-libre-5.1-gnu/drivers/platform/x86/sony-laptop.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/sony-laptop.c	2019-07-28 02:28:39.000000000 -0400
@@ -4424,14 +4424,16 @@ sony_pic_read_possible_resource(struct a
 			}
 			return AE_OK;
 		}
+
+	case ACPI_RESOURCE_TYPE_END_TAG:
+		return AE_OK;
+
 	default:
 		dprintk("Resource %d isn't an IRQ nor an IO port\n",
 			resource->type);
+		return AE_CTRL_TERMINATE;
 
-	case ACPI_RESOURCE_TYPE_END_TAG:
-		return AE_OK;
 	}
-	return AE_CTRL_TERMINATE;
 }
 
 static int sony_pic_possible_resources(struct acpi_device *device)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/platform/x86/thinkpad_acpi.c linux-libre-5.1.21-gnu/drivers/platform/x86/thinkpad_acpi.c
--- linux-libre-5.1-gnu/drivers/platform/x86/thinkpad_acpi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/platform/x86/thinkpad_acpi.c	2019-07-28 02:28:39.000000000 -0400
@@ -79,7 +79,7 @@
 #include <linux/jiffies.h>
 #include <linux/workqueue.h>
 #include <linux/acpi.h>
-#include <linux/pci_ids.h>
+#include <linux/pci.h>
 #include <linux/power_supply.h>
 #include <sound/core.h>
 #include <sound/control.h>
@@ -4501,6 +4501,74 @@ static void bluetooth_exit(void)
 	bluetooth_shutdown();
 }
 
+static const struct dmi_system_id bt_fwbug_list[] __initconst = {
+	{
+		.ident = "ThinkPad E485",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BOARD_NAME, "20KU"),
+		},
+	},
+	{
+		.ident = "ThinkPad E585",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BOARD_NAME, "20KV"),
+		},
+	},
+	{
+		.ident = "ThinkPad A285 - 20MW",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BOARD_NAME, "20MW"),
+		},
+	},
+	{
+		.ident = "ThinkPad A285 - 20MX",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BOARD_NAME, "20MX"),
+		},
+	},
+	{
+		.ident = "ThinkPad A485 - 20MU",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BOARD_NAME, "20MU"),
+		},
+	},
+	{
+		.ident = "ThinkPad A485 - 20MV",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_BOARD_NAME, "20MV"),
+		},
+	},
+	{}
+};
+
+static const struct pci_device_id fwbug_cards_ids[] __initconst = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24F3) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24FD) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2526) },
+	{}
+};
+
+
+static int __init have_bt_fwbug(void)
+{
+	/*
+	 * Some AMD based ThinkPads have a firmware bug that calling
+	 * "GBDC" will cause bluetooth on Intel wireless cards blocked
+	 */
+	if (dmi_check_system(bt_fwbug_list) && pci_dev_present(fwbug_cards_ids)) {
+		vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
+			FW_BUG "disable bluetooth subdriver for Intel cards\n");
+		return 1;
+	} else
+		return 0;
+}
+
 static int __init bluetooth_init(struct ibm_init_struct *iibm)
 {
 	int res;
@@ -4513,7 +4581,7 @@ static int __init bluetooth_init(struct
 
 	/* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
 	   G4x, R30, R31, R40e, R50e, T20-22, X20-21 */
-	tp_features.bluetooth = hkey_handle &&
+	tp_features.bluetooth = !have_bt_fwbug() && hkey_handle &&
 	    acpi_evalf(hkey_handle, &status, "GBDC", "qd");
 
 	vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/power/supply/axp288_charger.c linux-libre-5.1.21-gnu/drivers/power/supply/axp288_charger.c
--- linux-libre-5.1-gnu/drivers/power/supply/axp288_charger.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/power/supply/axp288_charger.c	2019-07-28 02:28:39.000000000 -0400
@@ -833,6 +833,10 @@ static int axp288_charger_probe(struct p
 	/* Register charger interrupts */
 	for (i = 0; i < CHRG_INTR_END; i++) {
 		pirq = platform_get_irq(info->pdev, i);
+		if (pirq < 0) {
+			dev_err(&pdev->dev, "Failed to get IRQ: %d\n", pirq);
+			return pirq;
+		}
 		info->irq[i] = regmap_irq_get_virq(info->regmap_irqc, pirq);
 		if (info->irq[i] < 0) {
 			dev_warn(&info->pdev->dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/power/supply/axp288_fuel_gauge.c linux-libre-5.1.21-gnu/drivers/power/supply/axp288_fuel_gauge.c
--- linux-libre-5.1-gnu/drivers/power/supply/axp288_fuel_gauge.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/power/supply/axp288_fuel_gauge.c	2019-07-28 02:28:39.000000000 -0400
@@ -686,6 +686,26 @@ intr_failed:
  */
 static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = {
 	{
+		/* ACEPC T8 Cherry Trail Z8350 mini PC */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T8"),
+			/* also match on somewhat unique bios-version */
+			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
+		},
+	},
+	{
+		/* ACEPC T11 Cherry Trail Z8350 mini PC */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T11"),
+			/* also match on somewhat unique bios-version */
+			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
+		},
+	},
+	{
 		/* Intel Cherry Trail Compute Stick, Windows version */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/power/supply/cpcap-battery.c linux-libre-5.1.21-gnu/drivers/power/supply/cpcap-battery.c
--- linux-libre-5.1-gnu/drivers/power/supply/cpcap-battery.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/power/supply/cpcap-battery.c	2019-07-28 02:28:39.000000000 -0400
@@ -82,7 +82,7 @@ struct cpcap_battery_config {
 };
 
 struct cpcap_coulomb_counter_data {
-	s32 sample;		/* 24-bits */
+	s32 sample;		/* 24 or 32 bits */
 	s32 accumulator;
 	s16 offset;		/* 10-bits */
 };
@@ -213,7 +213,7 @@ static int cpcap_battery_get_current(str
  * TI or ST coulomb counter in the PMIC.
  */
 static int cpcap_battery_cc_raw_div(struct cpcap_battery_ddata *ddata,
-				    u32 sample, s32 accumulator,
+				    s32 sample, s32 accumulator,
 				    s16 offset, u32 divider)
 {
 	s64 acc;
@@ -224,7 +224,6 @@ static int cpcap_battery_cc_raw_div(stru
 	if (!divider)
 		return 0;
 
-	sample &= 0xffffff;		/* 24-bits, unsigned */
 	offset &= 0x7ff;		/* 10-bits, signed */
 
 	switch (ddata->vendor) {
@@ -259,7 +258,7 @@ static int cpcap_battery_cc_raw_div(stru
 
 /* 3600000μAms = 1μAh */
 static int cpcap_battery_cc_to_uah(struct cpcap_battery_ddata *ddata,
-				   u32 sample, s32 accumulator,
+				   s32 sample, s32 accumulator,
 				   s16 offset)
 {
 	return cpcap_battery_cc_raw_div(ddata, sample,
@@ -268,7 +267,7 @@ static int cpcap_battery_cc_to_uah(struc
 }
 
 static int cpcap_battery_cc_to_ua(struct cpcap_battery_ddata *ddata,
-				  u32 sample, s32 accumulator,
+				  s32 sample, s32 accumulator,
 				  s16 offset)
 {
 	return cpcap_battery_cc_raw_div(ddata, sample,
@@ -312,6 +311,8 @@ cpcap_battery_read_accumulated(struct cp
 	/* Sample value CPCAP_REG_CCS1 & 2 */
 	ccd->sample = (buf[1] & 0x0fff) << 16;
 	ccd->sample |= buf[0];
+	if (ddata->vendor == CPCAP_VENDOR_TI)
+		ccd->sample = sign_extend32(24, ccd->sample);
 
 	/* Accumulator value CPCAP_REG_CCA1 & 2 */
 	ccd->accumulator = ((s16)buf[3]) << 16;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/power/supply/max14656_charger_detector.c linux-libre-5.1.21-gnu/drivers/power/supply/max14656_charger_detector.c
--- linux-libre-5.1-gnu/drivers/power/supply/max14656_charger_detector.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/power/supply/max14656_charger_detector.c	2019-07-28 02:28:39.000000000 -0400
@@ -280,6 +280,13 @@ static int max14656_probe(struct i2c_cli
 
 	INIT_DELAYED_WORK(&chip->irq_work, max14656_irq_worker);
 
+	chip->detect_psy = devm_power_supply_register(dev,
+		       &chip->psy_desc, &psy_cfg);
+	if (IS_ERR(chip->detect_psy)) {
+		dev_err(dev, "power_supply_register failed\n");
+		return -EINVAL;
+	}
+
 	ret = devm_request_irq(dev, chip->irq, max14656_irq,
 			       IRQF_TRIGGER_FALLING,
 			       MAX14656_NAME, chip);
@@ -289,13 +296,6 @@ static int max14656_probe(struct i2c_cli
 	}
 	enable_irq_wake(chip->irq);
 
-	chip->detect_psy = devm_power_supply_register(dev,
-		       &chip->psy_desc, &psy_cfg);
-	if (IS_ERR(chip->detect_psy)) {
-		dev_err(dev, "power_supply_register failed\n");
-		return -EINVAL;
-	}
-
 	schedule_delayed_work(&chip->irq_work, msecs_to_jiffies(2000));
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pwm/core.c linux-libre-5.1.21-gnu/drivers/pwm/core.c
--- linux-libre-5.1-gnu/drivers/pwm/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pwm/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -311,10 +311,12 @@ int pwmchip_add_with_polarity(struct pwm
 	if (IS_ENABLED(CONFIG_OF))
 		of_pwmchip_add(chip);
 
-	pwmchip_sysfs_export(chip);
-
 out:
 	mutex_unlock(&pwm_lock);
+
+	if (!ret)
+		pwmchip_sysfs_export(chip);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(pwmchip_add_with_polarity);
@@ -348,7 +350,7 @@ int pwmchip_remove(struct pwm_chip *chip
 	unsigned int i;
 	int ret = 0;
 
-	pwmchip_sysfs_unexport_children(chip);
+	pwmchip_sysfs_unexport(chip);
 
 	mutex_lock(&pwm_lock);
 
@@ -368,8 +370,6 @@ int pwmchip_remove(struct pwm_chip *chip
 
 	free_pwms(chip);
 
-	pwmchip_sysfs_unexport(chip);
-
 out:
 	mutex_unlock(&pwm_lock);
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pwm/pwm-meson.c linux-libre-5.1.21-gnu/drivers/pwm/pwm-meson.c
--- linux-libre-5.1-gnu/drivers/pwm/pwm-meson.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pwm/pwm-meson.c	2019-07-28 02:28:39.000000000 -0400
@@ -111,6 +111,10 @@ struct meson_pwm {
 	const struct meson_pwm_data *data;
 	void __iomem *base;
 	u8 inverter_mask;
+	/*
+	 * Protects register (write) access to the REG_MISC_AB register
+	 * that is shared between the two PWMs.
+	 */
 	spinlock_t lock;
 };
 
@@ -235,6 +239,7 @@ static void meson_pwm_enable(struct meso
 {
 	u32 value, clk_shift, clk_enable, enable;
 	unsigned int offset;
+	unsigned long flags;
 
 	switch (id) {
 	case 0:
@@ -255,6 +260,8 @@ static void meson_pwm_enable(struct meso
 		return;
 	}
 
+	spin_lock_irqsave(&meson->lock, flags);
+
 	value = readl(meson->base + REG_MISC_AB);
 	value &= ~(MISC_CLK_DIV_MASK << clk_shift);
 	value |= channel->pre_div << clk_shift;
@@ -267,11 +274,14 @@ static void meson_pwm_enable(struct meso
 	value = readl(meson->base + REG_MISC_AB);
 	value |= enable;
 	writel(value, meson->base + REG_MISC_AB);
+
+	spin_unlock_irqrestore(&meson->lock, flags);
 }
 
 static void meson_pwm_disable(struct meson_pwm *meson, unsigned int id)
 {
 	u32 value, enable;
+	unsigned long flags;
 
 	switch (id) {
 	case 0:
@@ -286,9 +296,13 @@ static void meson_pwm_disable(struct mes
 		return;
 	}
 
+	spin_lock_irqsave(&meson->lock, flags);
+
 	value = readl(meson->base + REG_MISC_AB);
 	value &= ~enable;
 	writel(value, meson->base + REG_MISC_AB);
+
+	spin_unlock_irqrestore(&meson->lock, flags);
 }
 
 static int meson_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
@@ -296,19 +310,16 @@ static int meson_pwm_apply(struct pwm_ch
 {
 	struct meson_pwm_channel *channel = pwm_get_chip_data(pwm);
 	struct meson_pwm *meson = to_meson_pwm(chip);
-	unsigned long flags;
 	int err = 0;
 
 	if (!state)
 		return -EINVAL;
 
-	spin_lock_irqsave(&meson->lock, flags);
-
 	if (!state->enabled) {
 		meson_pwm_disable(meson, pwm->hwpwm);
 		channel->state.enabled = false;
 
-		goto unlock;
+		return 0;
 	}
 
 	if (state->period != channel->state.period ||
@@ -329,7 +340,7 @@ static int meson_pwm_apply(struct pwm_ch
 		err = meson_pwm_calc(meson, channel, pwm->hwpwm,
 				     state->duty_cycle, state->period);
 		if (err < 0)
-			goto unlock;
+			return err;
 
 		channel->state.polarity = state->polarity;
 		channel->state.period = state->period;
@@ -341,9 +352,7 @@ static int meson_pwm_apply(struct pwm_ch
 		channel->state.enabled = true;
 	}
 
-unlock:
-	spin_unlock_irqrestore(&meson->lock, flags);
-	return err;
+	return 0;
 }
 
 static void meson_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pwm/pwm-tiehrpwm.c linux-libre-5.1.21-gnu/drivers/pwm/pwm-tiehrpwm.c
--- linux-libre-5.1-gnu/drivers/pwm/pwm-tiehrpwm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pwm/pwm-tiehrpwm.c	2019-07-28 02:28:39.000000000 -0400
@@ -382,6 +382,8 @@ static void ehrpwm_pwm_disable(struct pw
 	}
 
 	/* Update shadow register first before modifying active register */
+	ehrpwm_modify(pc->mmio_base, AQSFRC, AQSFRC_RLDCSF_MASK,
+		      AQSFRC_RLDCSF_ZRO);
 	ehrpwm_modify(pc->mmio_base, AQCSFRC, aqcsfrc_mask, aqcsfrc_val);
 	/*
 	 * Changes to immediate action on Action Qualifier. This puts
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/pwm/sysfs.c linux-libre-5.1.21-gnu/drivers/pwm/sysfs.c
--- linux-libre-5.1-gnu/drivers/pwm/sysfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/pwm/sysfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -411,19 +411,6 @@ void pwmchip_sysfs_export(struct pwm_chi
 void pwmchip_sysfs_unexport(struct pwm_chip *chip)
 {
 	struct device *parent;
-
-	parent = class_find_device(&pwm_class, NULL, chip,
-				   pwmchip_sysfs_match);
-	if (parent) {
-		/* for class_find_device() */
-		put_device(parent);
-		device_unregister(parent);
-	}
-}
-
-void pwmchip_sysfs_unexport_children(struct pwm_chip *chip)
-{
-	struct device *parent;
 	unsigned int i;
 
 	parent = class_find_device(&pwm_class, NULL, chip,
@@ -439,6 +426,7 @@ void pwmchip_sysfs_unexport_children(str
 	}
 
 	put_device(parent);
+	device_unregister(parent);
 }
 
 static int __init pwm_sysfs_init(void)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/rapidio/rio_cm.c linux-libre-5.1.21-gnu/drivers/rapidio/rio_cm.c
--- linux-libre-5.1-gnu/drivers/rapidio/rio_cm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/rapidio/rio_cm.c	2019-07-28 02:28:39.000000000 -0400
@@ -2147,6 +2147,14 @@ static int riocm_add_mport(struct device
 	mutex_init(&cm->rx_lock);
 	riocm_rx_fill(cm, RIOCM_RX_RING_SIZE);
 	cm->rx_wq = create_workqueue(DRV_NAME "/rxq");
+	if (!cm->rx_wq) {
+		riocm_error("failed to allocate IBMBOX_%d on %s",
+			    cmbox, mport->name);
+		rio_release_outb_mbox(mport, cmbox);
+		kfree(cm);
+		return -ENOMEM;
+	}
+
 	INIT_WORK(&cm->rx_work, rio_ibmsg_handler);
 
 	cm->tx_slot = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/ras/cec.c linux-libre-5.1.21-gnu/drivers/ras/cec.c
--- linux-libre-5.1-gnu/drivers/ras/cec.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/ras/cec.c	2019-07-28 02:28:39.000000000 -0400
@@ -2,6 +2,7 @@
 #include <linux/mm.h>
 #include <linux/gfp.h>
 #include <linux/kernel.h>
+#include <linux/workqueue.h>
 
 #include <asm/mce.h>
 
@@ -123,16 +124,12 @@ static u64 dfs_pfn;
 /* Amount of errors after which we offline */
 static unsigned int count_threshold = COUNT_MASK;
 
-/*
- * The timer "decays" element count each timer_interval which is 24hrs by
- * default.
- */
-
-#define CEC_TIMER_DEFAULT_INTERVAL	24 * 60 * 60	/* 24 hrs */
-#define CEC_TIMER_MIN_INTERVAL		 1 * 60 * 60	/* 1h */
-#define CEC_TIMER_MAX_INTERVAL	   30 *	24 * 60 * 60	/* one month */
-static struct timer_list cec_timer;
-static u64 timer_interval = CEC_TIMER_DEFAULT_INTERVAL;
+/* Each element "decays" each decay_interval which is 24hrs by default. */
+#define CEC_DECAY_DEFAULT_INTERVAL	24 * 60 * 60	/* 24 hrs */
+#define CEC_DECAY_MIN_INTERVAL		 1 * 60 * 60	/* 1h */
+#define CEC_DECAY_MAX_INTERVAL	   30 *	24 * 60 * 60	/* one month */
+static struct delayed_work cec_work;
+static u64 decay_interval = CEC_DECAY_DEFAULT_INTERVAL;
 
 /*
  * Decrement decay value. We're using DECAY_BITS bits to denote decay of an
@@ -160,20 +157,21 @@ static void do_spring_cleaning(struct ce
 /*
  * @interval in seconds
  */
-static void cec_mod_timer(struct timer_list *t, unsigned long interval)
+static void cec_mod_work(unsigned long interval)
 {
 	unsigned long iv;
 
-	iv = interval * HZ + jiffies;
-
-	mod_timer(t, round_jiffies(iv));
+	iv = interval * HZ;
+	mod_delayed_work(system_wq, &cec_work, round_jiffies(iv));
 }
 
-static void cec_timer_fn(struct timer_list *unused)
+static void cec_work_fn(struct work_struct *work)
 {
+	mutex_lock(&ce_mutex);
 	do_spring_cleaning(&ce_arr);
+	mutex_unlock(&ce_mutex);
 
-	cec_mod_timer(&cec_timer, timer_interval);
+	cec_mod_work(decay_interval);
 }
 
 /*
@@ -183,32 +181,38 @@ static void cec_timer_fn(struct timer_li
  */
 static int __find_elem(struct ce_array *ca, u64 pfn, unsigned int *to)
 {
+	int min = 0, max = ca->n - 1;
 	u64 this_pfn;
-	int min = 0, max = ca->n;
 
-	while (min < max) {
-		int tmp = (max + min) >> 1;
+	while (min <= max) {
+		int i = (min + max) >> 1;
 
-		this_pfn = PFN(ca->array[tmp]);
+		this_pfn = PFN(ca->array[i]);
 
 		if (this_pfn < pfn)
-			min = tmp + 1;
+			min = i + 1;
 		else if (this_pfn > pfn)
-			max = tmp;
-		else {
-			min = tmp;
-			break;
+			max = i - 1;
+		else if (this_pfn == pfn) {
+			if (to)
+				*to = i;
+
+			return i;
 		}
 	}
 
+	/*
+	 * When the loop terminates without finding @pfn, min has the index of
+	 * the element slot where the new @pfn should be inserted. The loop
+	 * terminates when min > max, which means the min index points to the
+	 * bigger element while the max index to the smaller element, in-between
+	 * which the new @pfn belongs to.
+	 *
+	 * For more details, see exercise 1, Section 6.2.1 in TAOCP, vol. 3.
+	 */
 	if (to)
 		*to = min;
 
-	this_pfn = PFN(ca->array[min]);
-
-	if (this_pfn == pfn)
-		return min;
-
 	return -ENOKEY;
 }
 
@@ -365,7 +369,9 @@ static int pfn_set(void *data, u64 val)
 {
 	*(u64 *)data = val;
 
-	return cec_add_elem(val);
+	cec_add_elem(val);
+
+	return 0;
 }
 
 DEFINE_DEBUGFS_ATTRIBUTE(pfn_ops, u64_get, pfn_set, "0x%llx\n");
@@ -374,15 +380,15 @@ static int decay_interval_set(void *data
 {
 	*(u64 *)data = val;
 
-	if (val < CEC_TIMER_MIN_INTERVAL)
+	if (val < CEC_DECAY_MIN_INTERVAL)
 		return -EINVAL;
 
-	if (val > CEC_TIMER_MAX_INTERVAL)
+	if (val > CEC_DECAY_MAX_INTERVAL)
 		return -EINVAL;
 
-	timer_interval = val;
+	decay_interval = val;
 
-	cec_mod_timer(&cec_timer, timer_interval);
+	cec_mod_work(decay_interval);
 	return 0;
 }
 DEFINE_DEBUGFS_ATTRIBUTE(decay_interval_ops, u64_get, decay_interval_set, "%lld\n");
@@ -426,7 +432,7 @@ static int array_dump(struct seq_file *m
 
 	seq_printf(m, "Flags: 0x%x\n", ca->flags);
 
-	seq_printf(m, "Timer interval: %lld seconds\n", timer_interval);
+	seq_printf(m, "Decay interval: %lld seconds\n", decay_interval);
 	seq_printf(m, "Decays: %lld\n", ca->decays_done);
 
 	seq_printf(m, "Action threshold: %d\n", count_threshold);
@@ -472,7 +478,7 @@ static int __init create_debugfs_nodes(v
 	}
 
 	decay = debugfs_create_file("decay_interval", S_IRUSR | S_IWUSR, d,
-				    &timer_interval, &decay_interval_ops);
+				    &decay_interval, &decay_interval_ops);
 	if (!decay) {
 		pr_warn("Error creating decay_interval debugfs node!\n");
 		goto err;
@@ -508,8 +514,8 @@ void __init cec_init(void)
 	if (create_debugfs_nodes())
 		return;
 
-	timer_setup(&cec_timer, cec_timer_fn, 0);
-	cec_mod_timer(&cec_timer, CEC_TIMER_DEFAULT_INTERVAL);
+	INIT_DELAYED_WORK(&cec_work, cec_work_fn);
+	schedule_delayed_work(&cec_work, CEC_DECAY_DEFAULT_INTERVAL);
 
 	pr_info("Correctable Errors collector initialized.\n");
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/core.c linux-libre-5.1.21-gnu/drivers/regulator/core.c
--- linux-libre-5.1-gnu/drivers/regulator/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -2256,6 +2256,7 @@ static void regulator_ena_gpio_free(stru
 		if (pin->gpiod == rdev->ena_pin->gpiod) {
 			if (pin->request_count <= 1) {
 				pin->request_count = 0;
+				gpiod_put(pin->gpiod);
 				list_del(&pin->list);
 				kfree(pin);
 				rdev->ena_pin = NULL;
@@ -3322,15 +3323,12 @@ static int regulator_set_voltage_unlocke
 
 	/* for not coupled regulators this will just set the voltage */
 	ret = regulator_balance_voltage(rdev, state);
-	if (ret < 0)
-		goto out2;
+	if (ret < 0) {
+		voltage->min_uV = old_min_uV;
+		voltage->max_uV = old_max_uV;
+	}
 
 out:
-	return 0;
-out2:
-	voltage->min_uV = old_min_uV;
-	voltage->max_uV = old_max_uV;
-
 	return ret;
 }
 
@@ -5064,10 +5062,11 @@ void regulator_unregister(struct regulat
 		regulator_put(rdev->supply);
 	}
 
+	flush_work(&rdev->disable_work.work);
+
 	mutex_lock(&regulator_list_mutex);
 
 	debugfs_remove_recursive(rdev->debugfs);
-	flush_work(&rdev->disable_work.work);
 	WARN_ON(rdev->open_count);
 	regulator_remove_coupling(rdev);
 	unset_regulator_supplies(rdev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/da9055-regulator.c linux-libre-5.1.21-gnu/drivers/regulator/da9055-regulator.c
--- linux-libre-5.1-gnu/drivers/regulator/da9055-regulator.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/da9055-regulator.c	2019-07-28 02:28:39.000000000 -0400
@@ -487,8 +487,10 @@ static irqreturn_t da9055_ldo5_6_oc_irq(
 {
 	struct da9055_regulator *regulator = data;
 
+	regulator_lock(regulator->rdev);
 	regulator_notifier_call_chain(regulator->rdev,
 				      REGULATOR_EVENT_OVER_CURRENT, NULL);
+	regulator_unlock(regulator->rdev);
 
 	return IRQ_HANDLED;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/da9062-regulator.c linux-libre-5.1.21-gnu/drivers/regulator/da9062-regulator.c
--- linux-libre-5.1-gnu/drivers/regulator/da9062-regulator.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/da9062-regulator.c	2019-07-28 02:28:39.000000000 -0400
@@ -974,8 +974,10 @@ static irqreturn_t da9062_ldo_lim_event(
 			continue;
 
 		if (BIT(regl->info->oc_event.lsb) & bits) {
+			regulator_lock(regl->rdev);
 			regulator_notifier_call_chain(regl->rdev,
 					REGULATOR_EVENT_OVER_CURRENT, NULL);
+			regulator_unlock(regl->rdev);
 			handled = IRQ_HANDLED;
 		}
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/da9063-regulator.c linux-libre-5.1.21-gnu/drivers/regulator/da9063-regulator.c
--- linux-libre-5.1-gnu/drivers/regulator/da9063-regulator.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/da9063-regulator.c	2019-07-28 02:28:39.000000000 -0400
@@ -615,9 +615,12 @@ static irqreturn_t da9063_ldo_lim_event(
 		if (regl->info->oc_event.reg != DA9063_REG_STATUS_D)
 			continue;
 
-		if (BIT(regl->info->oc_event.lsb) & bits)
+		if (BIT(regl->info->oc_event.lsb) & bits) {
+		        regulator_lock(regl->rdev);
 			regulator_notifier_call_chain(regl->rdev,
 					REGULATOR_EVENT_OVER_CURRENT, NULL);
+		        regulator_unlock(regl->rdev);
+		}
 	}
 
 	return IRQ_HANDLED;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/da9211-regulator.c linux-libre-5.1.21-gnu/drivers/regulator/da9211-regulator.c
--- linux-libre-5.1-gnu/drivers/regulator/da9211-regulator.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/da9211-regulator.c	2019-07-28 02:28:39.000000000 -0400
@@ -299,6 +299,8 @@ static struct da9211_pdata *da9211_parse
 				  0,
 				  GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
 				  "da9211-enable");
+		if (IS_ERR(pdata->gpiod_ren[n]))
+			pdata->gpiod_ren[n] = NULL;
 		n++;
 	}
 
@@ -322,8 +324,10 @@ static irqreturn_t da9211_irq_handler(in
 		goto error_i2c;
 
 	if (reg_val & DA9211_E_OV_CURR_A) {
+	        regulator_lock(chip->rdev[0]);
 		regulator_notifier_call_chain(chip->rdev[0],
 			REGULATOR_EVENT_OVER_CURRENT, NULL);
+	        regulator_unlock(chip->rdev[0]);
 
 		err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
 			DA9211_E_OV_CURR_A);
@@ -334,8 +338,10 @@ static irqreturn_t da9211_irq_handler(in
 	}
 
 	if (reg_val & DA9211_E_OV_CURR_B) {
+	        regulator_lock(chip->rdev[1]);
 		regulator_notifier_call_chain(chip->rdev[1],
 			REGULATOR_EVENT_OVER_CURRENT, NULL);
+	        regulator_unlock(chip->rdev[1]);
 
 		err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
 			DA9211_E_OV_CURR_B);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/lp8755.c linux-libre-5.1.21-gnu/drivers/regulator/lp8755.c
--- linux-libre-5.1-gnu/drivers/regulator/lp8755.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/lp8755.c	2019-07-28 02:28:39.000000000 -0400
@@ -372,10 +372,13 @@ static irqreturn_t lp8755_irq_handler(in
 	for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
 		if ((flag0 & (0x4 << icnt))
 		    && (pchip->irqmask & (0x04 << icnt))
-		    && (pchip->rdev[icnt] != NULL))
+		    && (pchip->rdev[icnt] != NULL)) {
+			regulator_lock(pchip->rdev[icnt]);
 			regulator_notifier_call_chain(pchip->rdev[icnt],
 						      LP8755_EVENT_PWR_FAULT,
 						      NULL);
+			regulator_unlock(pchip->rdev[icnt]);
+		}
 
 	/* read flag1 register */
 	ret = lp8755_read(pchip, 0x0E, &flag1);
@@ -389,18 +392,24 @@ static irqreturn_t lp8755_irq_handler(in
 	/* send OCP event to all regulator devices */
 	if ((flag1 & 0x01) && (pchip->irqmask & 0x01))
 		for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
-			if (pchip->rdev[icnt] != NULL)
+			if (pchip->rdev[icnt] != NULL) {
+				regulator_lock(pchip->rdev[icnt]);
 				regulator_notifier_call_chain(pchip->rdev[icnt],
 							      LP8755_EVENT_OCP,
 							      NULL);
+				regulator_unlock(pchip->rdev[icnt]);
+			}
 
 	/* send OVP event to all regulator devices */
 	if ((flag1 & 0x02) && (pchip->irqmask & 0x02))
 		for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)
-			if (pchip->rdev[icnt] != NULL)
+			if (pchip->rdev[icnt] != NULL) {
+				regulator_lock(pchip->rdev[icnt]);
 				regulator_notifier_call_chain(pchip->rdev[icnt],
 							      LP8755_EVENT_OVP,
 							      NULL);
+				regulator_unlock(pchip->rdev[icnt]);
+			}
 	return IRQ_HANDLED;
 
 err_i2c:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/ltc3589.c linux-libre-5.1.21-gnu/drivers/regulator/ltc3589.c
--- linux-libre-5.1-gnu/drivers/regulator/ltc3589.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/ltc3589.c	2019-07-28 02:28:39.000000000 -0400
@@ -419,16 +419,22 @@ static irqreturn_t ltc3589_isr(int irq,
 
 	if (irqstat & LTC3589_IRQSTAT_THERMAL_WARN) {
 		event = REGULATOR_EVENT_OVER_TEMP;
-		for (i = 0; i < LTC3589_NUM_REGULATORS; i++)
+		for (i = 0; i < LTC3589_NUM_REGULATORS; i++) {
+		        regulator_lock(ltc3589->regulators[i]);
 			regulator_notifier_call_chain(ltc3589->regulators[i],
 						      event, NULL);
+		        regulator_unlock(ltc3589->regulators[i]);
+		}
 	}
 
 	if (irqstat & LTC3589_IRQSTAT_UNDERVOLT_WARN) {
 		event = REGULATOR_EVENT_UNDER_VOLTAGE;
-		for (i = 0; i < LTC3589_NUM_REGULATORS; i++)
+		for (i = 0; i < LTC3589_NUM_REGULATORS; i++) {
+		        regulator_lock(ltc3589->regulators[i]);
 			regulator_notifier_call_chain(ltc3589->regulators[i],
 						      event, NULL);
+		        regulator_unlock(ltc3589->regulators[i]);
+		}
 	}
 
 	/* Clear warning condition */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/ltc3676.c linux-libre-5.1.21-gnu/drivers/regulator/ltc3676.c
--- linux-libre-5.1-gnu/drivers/regulator/ltc3676.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/ltc3676.c	2019-07-28 02:28:39.000000000 -0400
@@ -285,17 +285,23 @@ static irqreturn_t ltc3676_isr(int irq,
 	if (irqstat & LTC3676_IRQSTAT_THERMAL_WARN) {
 		dev_warn(dev, "Over-temperature Warning\n");
 		event = REGULATOR_EVENT_OVER_TEMP;
-		for (i = 0; i < LTC3676_NUM_REGULATORS; i++)
+		for (i = 0; i < LTC3676_NUM_REGULATORS; i++) {
+			regulator_lock(ltc3676->regulators[i]);
 			regulator_notifier_call_chain(ltc3676->regulators[i],
 						      event, NULL);
+			regulator_unlock(ltc3676->regulators[i]);
+		}
 	}
 
 	if (irqstat & LTC3676_IRQSTAT_UNDERVOLT_WARN) {
 		dev_info(dev, "Undervoltage Warning\n");
 		event = REGULATOR_EVENT_UNDER_VOLTAGE;
-		for (i = 0; i < LTC3676_NUM_REGULATORS; i++)
+		for (i = 0; i < LTC3676_NUM_REGULATORS; i++) {
+			regulator_lock(ltc3676->regulators[i]);
 			regulator_notifier_call_chain(ltc3676->regulators[i],
 						      event, NULL);
+			regulator_unlock(ltc3676->regulators[i]);
+		}
 	}
 
 	/* Clear warning condition */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/pv88060-regulator.c linux-libre-5.1.21-gnu/drivers/regulator/pv88060-regulator.c
--- linux-libre-5.1-gnu/drivers/regulator/pv88060-regulator.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/pv88060-regulator.c	2019-07-28 02:28:39.000000000 -0400
@@ -244,9 +244,11 @@ static irqreturn_t pv88060_irq_handler(i
 	if (reg_val & PV88060_E_VDD_FLT) {
 		for (i = 0; i < PV88060_MAX_REGULATORS; i++) {
 			if (chip->rdev[i] != NULL) {
+				regulator_lock(chip->rdev[i]);
 				regulator_notifier_call_chain(chip->rdev[i],
 					REGULATOR_EVENT_UNDER_VOLTAGE,
 					NULL);
+				regulator_unlock(chip->rdev[i]);
 			}
 		}
 
@@ -261,9 +263,11 @@ static irqreturn_t pv88060_irq_handler(i
 	if (reg_val & PV88060_E_OVER_TEMP) {
 		for (i = 0; i < PV88060_MAX_REGULATORS; i++) {
 			if (chip->rdev[i] != NULL) {
+				regulator_lock(chip->rdev[i]);
 				regulator_notifier_call_chain(chip->rdev[i],
 					REGULATOR_EVENT_OVER_TEMP,
 					NULL);
+				regulator_unlock(chip->rdev[i]);
 			}
 		}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/pv88080-regulator.c linux-libre-5.1.21-gnu/drivers/regulator/pv88080-regulator.c
--- linux-libre-5.1-gnu/drivers/regulator/pv88080-regulator.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/pv88080-regulator.c	2019-07-28 02:28:39.000000000 -0400
@@ -345,9 +345,11 @@ static irqreturn_t pv88080_irq_handler(i
 	if (reg_val & PV88080_E_VDD_FLT) {
 		for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
 			if (chip->rdev[i] != NULL) {
+			        regulator_lock(chip->rdev[i]);
 				regulator_notifier_call_chain(chip->rdev[i],
 					REGULATOR_EVENT_UNDER_VOLTAGE,
 					NULL);
+			        regulator_unlock(chip->rdev[i]);
 			}
 		}
 
@@ -362,9 +364,11 @@ static irqreturn_t pv88080_irq_handler(i
 	if (reg_val & PV88080_E_OVER_TEMP) {
 		for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
 			if (chip->rdev[i] != NULL) {
+			        regulator_lock(chip->rdev[i]);
 				regulator_notifier_call_chain(chip->rdev[i],
 					REGULATOR_EVENT_OVER_TEMP,
 					NULL);
+			        regulator_unlock(chip->rdev[i]);
 			}
 		}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/pv88090-regulator.c linux-libre-5.1.21-gnu/drivers/regulator/pv88090-regulator.c
--- linux-libre-5.1-gnu/drivers/regulator/pv88090-regulator.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/pv88090-regulator.c	2019-07-28 02:28:39.000000000 -0400
@@ -237,9 +237,11 @@ static irqreturn_t pv88090_irq_handler(i
 	if (reg_val & PV88090_E_VDD_FLT) {
 		for (i = 0; i < PV88090_MAX_REGULATORS; i++) {
 			if (chip->rdev[i] != NULL) {
+			        regulator_lock(chip->rdev[i]);
 				regulator_notifier_call_chain(chip->rdev[i],
 					REGULATOR_EVENT_UNDER_VOLTAGE,
 					NULL);
+			        regulator_unlock(chip->rdev[i]);
 			}
 		}
 
@@ -254,9 +256,11 @@ static irqreturn_t pv88090_irq_handler(i
 	if (reg_val & PV88090_E_OVER_TEMP) {
 		for (i = 0; i < PV88090_MAX_REGULATORS; i++) {
 			if (chip->rdev[i] != NULL) {
+			        regulator_lock(chip->rdev[i]);
 				regulator_notifier_call_chain(chip->rdev[i],
 					REGULATOR_EVENT_OVER_TEMP,
 					NULL);
+			        regulator_unlock(chip->rdev[i]);
 			}
 		}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/s2mps11.c linux-libre-5.1.21-gnu/drivers/regulator/s2mps11.c
--- linux-libre-5.1-gnu/drivers/regulator/s2mps11.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/s2mps11.c	2019-07-28 02:28:39.000000000 -0400
@@ -372,8 +372,8 @@ static const struct regulator_desc s2mps
 	regulator_desc_s2mps11_buck1_4(4),
 	regulator_desc_s2mps11_buck5,
 	regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV),
-	regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_12_5_MV),
-	regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_12_5_MV),
+	regulator_desc_s2mps11_buck67810(7, MIN_750_MV, STEP_12_5_MV),
+	regulator_desc_s2mps11_buck67810(8, MIN_750_MV, STEP_12_5_MV),
 	regulator_desc_s2mps11_buck9,
 	regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV),
 };
@@ -821,9 +821,12 @@ static void s2mps14_pmic_dt_parse_ext_co
 				0,
 				GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
 				"s2mps11-regulator");
-		if (IS_ERR(gpio[reg])) {
+		if (PTR_ERR(gpio[reg]) == -ENOENT)
+			gpio[reg] = NULL;
+		else if (IS_ERR(gpio[reg])) {
 			dev_err(&pdev->dev, "Failed to get control GPIO for %d/%s\n",
 				reg, rdata[reg].name);
+			gpio[reg] = NULL;
 			continue;
 		}
 		if (gpio[reg])
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/s5m8767.c linux-libre-5.1.21-gnu/drivers/regulator/s5m8767.c
--- linux-libre-5.1-gnu/drivers/regulator/s5m8767.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/s5m8767.c	2019-07-28 02:28:39.000000000 -0400
@@ -574,7 +574,9 @@ static int s5m8767_pmic_dt_parse_pdata(s
 			0,
 			GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
 			"s5m8767");
-		if (IS_ERR(rdata->ext_control_gpiod))
+		if (PTR_ERR(rdata->ext_control_gpiod) == -ENOENT)
+			rdata->ext_control_gpiod = NULL;
+		else if (IS_ERR(rdata->ext_control_gpiod))
 			return PTR_ERR(rdata->ext_control_gpiod);
 
 		rdata->id = i;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/tps65090-regulator.c linux-libre-5.1.21-gnu/drivers/regulator/tps65090-regulator.c
--- linux-libre-5.1-gnu/drivers/regulator/tps65090-regulator.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/tps65090-regulator.c	2019-07-28 02:28:39.000000000 -0400
@@ -381,11 +381,12 @@ static struct tps65090_platform_data *tp
 								    "dcdc-ext-control-gpios", 0,
 								    gflags,
 								    "tps65090");
-			if (IS_ERR(rpdata->gpiod))
-				return ERR_CAST(rpdata->gpiod);
-			if (!rpdata->gpiod)
+			if (PTR_ERR(rpdata->gpiod) == -ENOENT) {
 				dev_err(&pdev->dev,
 					"could not find DCDC external control GPIO\n");
+				rpdata->gpiod = NULL;
+			} else if (IS_ERR(rpdata->gpiod))
+				return ERR_CAST(rpdata->gpiod);
 		}
 
 		if (of_property_read_u32(tps65090_matches[idx].of_node,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/wm831x-dcdc.c linux-libre-5.1.21-gnu/drivers/regulator/wm831x-dcdc.c
--- linux-libre-5.1-gnu/drivers/regulator/wm831x-dcdc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/wm831x-dcdc.c	2019-07-28 02:28:39.000000000 -0400
@@ -183,9 +183,11 @@ static irqreturn_t wm831x_dcdc_uv_irq(in
 {
 	struct wm831x_dcdc *dcdc = data;
 
+	regulator_lock(dcdc->regulator);
 	regulator_notifier_call_chain(dcdc->regulator,
 				      REGULATOR_EVENT_UNDER_VOLTAGE,
 				      NULL);
+	regulator_unlock(dcdc->regulator);
 
 	return IRQ_HANDLED;
 }
@@ -194,9 +196,11 @@ static irqreturn_t wm831x_dcdc_oc_irq(in
 {
 	struct wm831x_dcdc *dcdc = data;
 
+	regulator_lock(dcdc->regulator);
 	regulator_notifier_call_chain(dcdc->regulator,
 				      REGULATOR_EVENT_OVER_CURRENT,
 				      NULL);
+	regulator_unlock(dcdc->regulator);
 
 	return IRQ_HANDLED;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/wm831x-isink.c linux-libre-5.1.21-gnu/drivers/regulator/wm831x-isink.c
--- linux-libre-5.1-gnu/drivers/regulator/wm831x-isink.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/wm831x-isink.c	2019-07-28 02:28:39.000000000 -0400
@@ -140,9 +140,11 @@ static irqreturn_t wm831x_isink_irq(int
 {
 	struct wm831x_isink *isink = data;
 
+	regulator_lock(isink->regulator);
 	regulator_notifier_call_chain(isink->regulator,
 				      REGULATOR_EVENT_OVER_CURRENT,
 				      NULL);
+	regulator_unlock(isink->regulator);
 
 	return IRQ_HANDLED;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/regulator/wm831x-ldo.c linux-libre-5.1.21-gnu/drivers/regulator/wm831x-ldo.c
--- linux-libre-5.1-gnu/drivers/regulator/wm831x-ldo.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/regulator/wm831x-ldo.c	2019-07-28 02:28:39.000000000 -0400
@@ -51,9 +51,11 @@ static irqreturn_t wm831x_ldo_uv_irq(int
 {
 	struct wm831x_ldo *ldo = data;
 
+	regulator_lock(ldo->regulator);
 	regulator_notifier_call_chain(ldo->regulator,
 				      REGULATOR_EVENT_UNDER_VOLTAGE,
 				      NULL);
+	regulator_unlock(ldo->regulator);
 
 	return IRQ_HANDLED;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/rtc/rtc-88pm860x.c linux-libre-5.1.21-gnu/drivers/rtc/rtc-88pm860x.c
--- linux-libre-5.1-gnu/drivers/rtc/rtc-88pm860x.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/rtc/rtc-88pm860x.c	2019-07-28 02:28:39.000000000 -0400
@@ -421,7 +421,7 @@ static int pm860x_rtc_remove(struct plat
 	struct pm860x_rtc_info *info = platform_get_drvdata(pdev);
 
 #ifdef VRTC_CALIBRATION
-	flush_scheduled_work();
+	cancel_delayed_work_sync(&info->calib_work);
 	/* disable measurement */
 	pm860x_set_bits(info->i2c, PM8607_MEAS_EN2, MEAS2_VRTC, 0);
 #endif	/* VRTC_CALIBRATION */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/rtc/rtc-stm32.c linux-libre-5.1.21-gnu/drivers/rtc/rtc-stm32.c
--- linux-libre-5.1-gnu/drivers/rtc/rtc-stm32.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/rtc/rtc-stm32.c	2019-07-28 02:28:39.000000000 -0400
@@ -788,11 +788,14 @@ static int stm32_rtc_probe(struct platfo
 	ret = device_init_wakeup(&pdev->dev, true);
 	if (rtc->data->has_wakeirq) {
 		rtc->wakeirq_alarm = platform_get_irq(pdev, 1);
-		if (rtc->wakeirq_alarm <= 0)
-			ret = rtc->wakeirq_alarm;
-		else
+		if (rtc->wakeirq_alarm > 0) {
 			ret = dev_pm_set_dedicated_wake_irq(&pdev->dev,
 							    rtc->wakeirq_alarm);
+		} else {
+			ret = rtc->wakeirq_alarm;
+			if (rtc->wakeirq_alarm == -EPROBE_DEFER)
+				goto err;
+		}
 	}
 	if (ret)
 		dev_warn(&pdev->dev, "alarm can't wake up the system: %d", ret);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/rtc/rtc-xgene.c linux-libre-5.1.21-gnu/drivers/rtc/rtc-xgene.c
--- linux-libre-5.1-gnu/drivers/rtc/rtc-xgene.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/rtc/rtc-xgene.c	2019-07-28 02:28:39.000000000 -0400
@@ -168,6 +168,10 @@ static int xgene_rtc_probe(struct platfo
 	if (IS_ERR(pdata->csr_base))
 		return PTR_ERR(pdata->csr_base);
 
+	pdata->rtc = devm_rtc_allocate_device(&pdev->dev);
+	if (IS_ERR(pdata->rtc))
+		return PTR_ERR(pdata->rtc);
+
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		dev_err(&pdev->dev, "No IRQ resource\n");
@@ -198,15 +202,15 @@ static int xgene_rtc_probe(struct platfo
 		return ret;
 	}
 
-	pdata->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
-					 &xgene_rtc_ops, THIS_MODULE);
-	if (IS_ERR(pdata->rtc)) {
-		clk_disable_unprepare(pdata->clk);
-		return PTR_ERR(pdata->rtc);
-	}
-
 	/* HW does not support update faster than 1 seconds */
 	pdata->rtc->uie_unsupported = 1;
+	pdata->rtc->ops = &xgene_rtc_ops;
+
+	ret = rtc_register_device(pdata->rtc);
+	if (ret) {
+		clk_disable_unprepare(pdata->clk);
+		return ret;
+	}
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/block/dcssblk.c linux-libre-5.1.21-gnu/drivers/s390/block/dcssblk.c
--- linux-libre-5.1-gnu/drivers/s390/block/dcssblk.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/block/dcssblk.c	2019-07-28 02:28:39.000000000 -0400
@@ -59,6 +59,7 @@ static size_t dcssblk_dax_copy_to_iter(s
 
 static const struct dax_operations dcssblk_dax_ops = {
 	.direct_access = dcssblk_dax_direct_access,
+	.dax_supported = generic_fsdax_supported,
 	.copy_from_iter = dcssblk_dax_copy_from_iter,
 	.copy_to_iter = dcssblk_dax_copy_to_iter,
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/cio/cio.h linux-libre-5.1.21-gnu/drivers/s390/cio/cio.h
--- linux-libre-5.1-gnu/drivers/s390/cio/cio.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/cio/cio.h	2019-07-28 02:28:39.000000000 -0400
@@ -115,7 +115,7 @@ struct subchannel {
 	struct schib_config config;
 } __attribute__ ((aligned(8)));
 
-DECLARE_PER_CPU(struct irb, cio_irb);
+DECLARE_PER_CPU_ALIGNED(struct irb, cio_irb);
 
 #define to_subchannel(n) container_of(n, struct subchannel, dev)
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/cio/qdio_main.c linux-libre-5.1.21-gnu/drivers/s390/cio/qdio_main.c
--- linux-libre-5.1-gnu/drivers/s390/cio/qdio_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/cio/qdio_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -738,6 +738,7 @@ static int get_outbound_buffer_frontier(
 
 	switch (state) {
 	case SLSB_P_OUTPUT_EMPTY:
+	case SLSB_P_OUTPUT_PENDING:
 		/* the adapter got it */
 		DBF_DEV_EVENT(DBF_INFO, q->irq_ptr,
 			"out empty:%1d %02x", q->nr, count);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/cio/qdio_setup.c linux-libre-5.1.21-gnu/drivers/s390/cio/qdio_setup.c
--- linux-libre-5.1-gnu/drivers/s390/cio/qdio_setup.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/cio/qdio_setup.c	2019-07-28 02:28:39.000000000 -0400
@@ -150,6 +150,7 @@ static int __qdio_allocate_qs(struct qdi
 			return -ENOMEM;
 		}
 		irq_ptr_qs[i] = q;
+		INIT_LIST_HEAD(&q->entry);
 	}
 	return 0;
 }
@@ -178,6 +179,7 @@ static void setup_queues_misc(struct qdi
 	q->mask = 1 << (31 - i);
 	q->nr = i;
 	q->handler = handler;
+	INIT_LIST_HEAD(&q->entry);
 }
 
 static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/cio/qdio_thinint.c linux-libre-5.1.21-gnu/drivers/s390/cio/qdio_thinint.c
--- linux-libre-5.1-gnu/drivers/s390/cio/qdio_thinint.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/cio/qdio_thinint.c	2019-07-28 02:28:39.000000000 -0400
@@ -79,7 +79,6 @@ void tiqdio_add_input_queues(struct qdio
 	mutex_lock(&tiq_list_lock);
 	list_add_rcu(&irq_ptr->input_qs[0]->entry, &tiq_list);
 	mutex_unlock(&tiq_list_lock);
-	xchg(irq_ptr->dsci, 1 << 7);
 }
 
 void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
@@ -87,14 +86,14 @@ void tiqdio_remove_input_queues(struct q
 	struct qdio_q *q;
 
 	q = irq_ptr->input_qs[0];
-	/* if establish triggered an error */
-	if (!q || !q->entry.prev || !q->entry.next)
+	if (!q)
 		return;
 
 	mutex_lock(&tiq_list_lock);
 	list_del_rcu(&q->entry);
 	mutex_unlock(&tiq_list_lock);
 	synchronize_rcu();
+	INIT_LIST_HEAD(&q->entry);
 }
 
 static inline int has_multiple_inq_on_dsci(struct qdio_irq *irq_ptr)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/cio/vfio_ccw_drv.c linux-libre-5.1.21-gnu/drivers/s390/cio/vfio_ccw_drv.c
--- linux-libre-5.1-gnu/drivers/s390/cio/vfio_ccw_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/cio/vfio_ccw_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -40,26 +40,30 @@ int vfio_ccw_sch_quiesce(struct subchann
 	if (ret != -EBUSY)
 		goto out_unlock;
 
+	iretry = 255;
 	do {
-		iretry = 255;
 
 		ret = cio_cancel_halt_clear(sch, &iretry);
-		while (ret == -EBUSY) {
-			/*
-			 * Flush all I/O and wait for
-			 * cancel/halt/clear completion.
-			 */
-			private->completion = &completion;
-			spin_unlock_irq(sch->lock);
 
-			wait_for_completion_timeout(&completion, 3*HZ);
+		if (ret == -EIO) {
+			pr_err("vfio_ccw: could not quiesce subchannel 0.%x.%04x!\n",
+			       sch->schid.ssid, sch->schid.sch_no);
+			break;
+		}
 
-			spin_lock_irq(sch->lock);
-			private->completion = NULL;
-			flush_workqueue(vfio_ccw_work_q);
-			ret = cio_cancel_halt_clear(sch, &iretry);
-		};
+		/*
+		 * Flush all I/O and wait for
+		 * cancel/halt/clear completion.
+		 */
+		private->completion = &completion;
+		spin_unlock_irq(sch->lock);
+
+		if (ret == -EBUSY)
+			wait_for_completion_timeout(&completion, 3*HZ);
 
+		private->completion = NULL;
+		flush_workqueue(vfio_ccw_work_q);
+		spin_lock_irq(sch->lock);
 		ret = cio_disable_subchannel(sch);
 	} while (ret == -EBUSY);
 out_unlock:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/cio/vfio_ccw_ops.c linux-libre-5.1.21-gnu/drivers/s390/cio/vfio_ccw_ops.c
--- linux-libre-5.1-gnu/drivers/s390/cio/vfio_ccw_ops.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/cio/vfio_ccw_ops.c	2019-07-28 02:28:39.000000000 -0400
@@ -130,11 +130,12 @@ static int vfio_ccw_mdev_remove(struct m
 
 	if ((private->state != VFIO_CCW_STATE_NOT_OPER) &&
 	    (private->state != VFIO_CCW_STATE_STANDBY)) {
-		if (!vfio_ccw_mdev_reset(mdev))
+		if (!vfio_ccw_sch_quiesce(private->sch))
 			private->state = VFIO_CCW_STATE_STANDBY;
 		/* The state will be NOT_OPER on error. */
 	}
 
+	cp_free(&private->cp);
 	private->mdev = NULL;
 	atomic_inc(&private->avail);
 
@@ -158,6 +159,14 @@ static void vfio_ccw_mdev_release(struct
 	struct vfio_ccw_private *private =
 		dev_get_drvdata(mdev_parent_dev(mdev));
 
+	if ((private->state != VFIO_CCW_STATE_NOT_OPER) &&
+	    (private->state != VFIO_CCW_STATE_STANDBY)) {
+		if (!vfio_ccw_mdev_reset(mdev))
+			private->state = VFIO_CCW_STATE_STANDBY;
+		/* The state will be NOT_OPER on error. */
+	}
+
+	cp_free(&private->cp);
 	vfio_unregister_notifier(mdev_dev(mdev), VFIO_IOMMU_NOTIFY,
 				 &private->nb);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/crypto/ap_bus.c linux-libre-5.1.21-gnu/drivers/s390/crypto/ap_bus.c
--- linux-libre-5.1-gnu/drivers/s390/crypto/ap_bus.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/crypto/ap_bus.c	2019-07-28 02:28:39.000000000 -0400
@@ -254,19 +254,37 @@ static inline int ap_test_config_card_id
 }
 
 /*
- * ap_test_config_domain(): Test, whether an AP usage domain is configured.
+ * ap_test_config_usage_domain(): Test, whether an AP usage domain
+ * is configured.
  * @domain AP usage domain ID
  *
  * Returns 0 if the usage domain is not configured
  *	   1 if the usage domain is configured or
  *	     if the configuration information is not available
  */
-static inline int ap_test_config_domain(unsigned int domain)
+int ap_test_config_usage_domain(unsigned int domain)
 {
 	if (!ap_configuration)	/* QCI not supported */
 		return domain < 16;
 	return ap_test_config(ap_configuration->aqm, domain);
 }
+EXPORT_SYMBOL(ap_test_config_usage_domain);
+
+/*
+ * ap_test_config_ctrl_domain(): Test, whether an AP control domain
+ * is configured.
+ * @domain AP control domain ID
+ *
+ * Returns 1 if the control domain is configured
+ *	   0 in all other cases
+ */
+int ap_test_config_ctrl_domain(unsigned int domain)
+{
+	if (!ap_configuration)	/* QCI not supported */
+		return 0;
+	return ap_test_config(ap_configuration->adm, domain);
+}
+EXPORT_SYMBOL(ap_test_config_ctrl_domain);
 
 /**
  * ap_query_queue(): Check if an AP queue is available.
@@ -1267,7 +1285,7 @@ static void ap_select_domain(void)
 	best_domain = -1;
 	max_count = 0;
 	for (i = 0; i < AP_DOMAINS; i++) {
-		if (!ap_test_config_domain(i) ||
+		if (!ap_test_config_usage_domain(i) ||
 		    !test_bit_inv(i, ap_perms.aqm))
 			continue;
 		count = 0;
@@ -1442,7 +1460,7 @@ static void _ap_scan_bus_adapter(int id)
 				      (void *)(long) qid,
 				      __match_queue_device_with_qid);
 		aq = dev ? to_ap_queue(dev) : NULL;
-		if (!ap_test_config_domain(dom)) {
+		if (!ap_test_config_usage_domain(dom)) {
 			if (dev) {
 				/* Queue device exists but has been
 				 * removed from configuration.
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/crypto/ap_bus.h linux-libre-5.1.21-gnu/drivers/s390/crypto/ap_bus.h
--- linux-libre-5.1-gnu/drivers/s390/crypto/ap_bus.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/crypto/ap_bus.h	2019-07-28 02:28:39.000000000 -0400
@@ -251,6 +251,9 @@ void ap_wait(enum ap_wait wait);
 void ap_request_timeout(struct timer_list *t);
 void ap_bus_force_rescan(void);
 
+int ap_test_config_usage_domain(unsigned int domain);
+int ap_test_config_ctrl_domain(unsigned int domain);
+
 void ap_queue_init_reply(struct ap_queue *aq, struct ap_message *ap_msg);
 struct ap_queue *ap_queue_create(ap_qid_t qid, int device_type);
 void ap_queue_prepare_remove(struct ap_queue *aq);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/crypto/zcrypt_api.c linux-libre-5.1.21-gnu/drivers/s390/crypto/zcrypt_api.c
--- linux-libre-5.1-gnu/drivers/s390/crypto/zcrypt_api.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/crypto/zcrypt_api.c	2019-07-28 02:28:39.000000000 -0400
@@ -659,6 +659,7 @@ static long zcrypt_rsa_modexpo(struct ap
 	trace_s390_zcrypt_req(mex, TP_ICARSAMODEXPO);
 
 	if (mex->outputdatalength < mex->inputdatalength) {
+		func_code = 0;
 		rc = -EINVAL;
 		goto out;
 	}
@@ -742,6 +743,7 @@ static long zcrypt_rsa_crt(struct ap_per
 	trace_s390_zcrypt_req(crt, TP_ICARSACRT);
 
 	if (crt->outputdatalength < crt->inputdatalength) {
+		func_code = 0;
 		rc = -EINVAL;
 		goto out;
 	}
@@ -820,7 +822,7 @@ static long _zcrypt_send_cprb(struct ap_
 	struct ap_message ap_msg;
 	unsigned int weight, pref_weight;
 	unsigned int func_code;
-	unsigned short *domain;
+	unsigned short *domain, tdom;
 	int qid = 0, rc = -ENODEV;
 	struct module *mod;
 
@@ -832,6 +834,17 @@ static long _zcrypt_send_cprb(struct ap_
 	if (rc)
 		goto out;
 
+	/*
+	 * If a valid target domain is set and this domain is NOT a usage
+	 * domain but a control only domain, use the default domain as target.
+	 */
+	tdom = *domain;
+	if (tdom >= 0 && tdom < AP_DOMAINS &&
+	    !ap_test_config_usage_domain(tdom) &&
+	    ap_test_config_ctrl_domain(tdom) &&
+	    ap_domain_index >= 0)
+		tdom = ap_domain_index;
+
 	pref_zc = NULL;
 	pref_zq = NULL;
 	spin_lock(&zcrypt_list_lock);
@@ -854,8 +867,8 @@ static long _zcrypt_send_cprb(struct ap_
 			/* check if device is online and eligible */
 			if (!zq->online ||
 			    !zq->ops->send_cprb ||
-			    ((*domain != (unsigned short) AUTOSELECT) &&
-			     (*domain != AP_QID_QUEUE(zq->queue->qid))))
+			    (tdom != (unsigned short) AUTOSELECT &&
+			     tdom != AP_QID_QUEUE(zq->queue->qid)))
 				continue;
 			/* check if device node has admission for this queue */
 			if (!zcrypt_check_queue(perms,
@@ -951,6 +964,7 @@ static long zcrypt_send_ep11_cprb(struct
 
 		targets = kcalloc(target_num, sizeof(*targets), GFP_KERNEL);
 		if (!targets) {
+			func_code = 0;
 			rc = -ENOMEM;
 			goto out;
 		}
@@ -958,6 +972,7 @@ static long zcrypt_send_ep11_cprb(struct
 		uptr = (struct ep11_target_dev __force __user *) xcrb->targets;
 		if (copy_from_user(targets, uptr,
 				   target_num * sizeof(*targets))) {
+			func_code = 0;
 			rc = -EFAULT;
 			goto out_free;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/net/qeth_core.h linux-libre-5.1.21-gnu/drivers/s390/net/qeth_core.h
--- linux-libre-5.1-gnu/drivers/s390/net/qeth_core.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/net/qeth_core.h	2019-07-28 02:28:39.000000000 -0400
@@ -163,6 +163,12 @@ struct qeth_vnicc_info {
 	bool rx_bcast_enabled;
 };
 
+static inline int qeth_is_adp_supported(struct qeth_ipa_info *ipa,
+		enum qeth_ipa_setadp_cmd func)
+{
+	return (ipa->supported_funcs & func);
+}
+
 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
 		enum qeth_ipa_funcs func)
 {
@@ -176,9 +182,7 @@ static inline int qeth_is_ipa_enabled(st
 }
 
 #define qeth_adp_supported(c, f) \
-	qeth_is_ipa_supported(&c->options.adp, f)
-#define qeth_adp_enabled(c, f) \
-	qeth_is_ipa_enabled(&c->options.adp, f)
+	qeth_is_adp_supported(&c->options.adp, f)
 #define qeth_is_supported(c, f) \
 	qeth_is_ipa_supported(&c->options.ipa4, f)
 #define qeth_is_enabled(c, f) \
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/net/qeth_core_main.c linux-libre-5.1.21-gnu/drivers/s390/net/qeth_core_main.c
--- linux-libre-5.1-gnu/drivers/s390/net/qeth_core_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/net/qeth_core_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1308,7 +1308,7 @@ static void qeth_set_multiple_write_queu
 	card->qdio.no_out_queues = 4;
 }
 
-static void qeth_update_from_chp_desc(struct qeth_card *card)
+static int qeth_update_from_chp_desc(struct qeth_card *card)
 {
 	struct ccw_device *ccwdev;
 	struct channel_path_desc_fmt0 *chp_dsc;
@@ -1318,7 +1318,7 @@ static void qeth_update_from_chp_desc(st
 	ccwdev = card->data.ccwdev;
 	chp_dsc = ccw_device_get_chp_desc(ccwdev, 0);
 	if (!chp_dsc)
-		goto out;
+		return -ENOMEM;
 
 	card->info.func_level = 0x4100 + chp_dsc->desc;
 	if (card->info.type == QETH_CARD_TYPE_IQD)
@@ -1333,6 +1333,7 @@ out:
 	kfree(chp_dsc);
 	QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
 	QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
+	return 0;
 }
 
 static void qeth_init_qdio_info(struct qeth_card *card)
@@ -4986,7 +4987,9 @@ int qeth_core_hardsetup_card(struct qeth
 
 	QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
 	atomic_set(&card->force_alloc_skb, 0);
-	qeth_update_from_chp_desc(card);
+	rc = qeth_update_from_chp_desc(card);
+	if (rc)
+		return rc;
 retry:
 	if (retries < 3)
 		QETH_DBF_MESSAGE(2, "Retrying to do IDX activates on device %x.\n",
@@ -5641,7 +5644,9 @@ static int qeth_core_probe_device(struct
 	}
 
 	qeth_setup_card(card);
-	qeth_update_from_chp_desc(card);
+	rc = qeth_update_from_chp_desc(card);
+	if (rc)
+		goto err_chp_desc;
 
 	card->dev = qeth_alloc_netdev(card);
 	if (!card->dev) {
@@ -5676,6 +5681,7 @@ err_disc:
 	qeth_core_free_discipline(card);
 err_load:
 	free_netdev(card->dev);
+err_chp_desc:
 err_card:
 	qeth_core_free_card(card);
 err_dev:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/net/qeth_l2_main.c linux-libre-5.1.21-gnu/drivers/s390/net/qeth_l2_main.c
--- linux-libre-5.1-gnu/drivers/s390/net/qeth_l2_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/net/qeth_l2_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1679,7 +1679,7 @@ static void qeth_bridgeport_an_set_cb(vo
 
 	l2entry = (struct qdio_brinfo_entry_l2 *)entry;
 	code = IPA_ADDR_CHANGE_CODE_MACADDR;
-	if (l2entry->addr_lnid.lnid)
+	if (l2entry->addr_lnid.lnid < VLAN_N_VID)
 		code |= IPA_ADDR_CHANGE_CODE_VLANID;
 	qeth_bridge_emit_host_event(card, anev_reg_unreg, code,
 		(struct net_if_token *)&l2entry->nit,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/net/qeth_l3_main.c linux-libre-5.1.21-gnu/drivers/s390/net/qeth_l3_main.c
--- linux-libre-5.1-gnu/drivers/s390/net/qeth_l3_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/net/qeth_l3_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1883,13 +1883,20 @@ static int qeth_l3_do_ioctl(struct net_d
 
 static int qeth_l3_get_cast_type(struct sk_buff *skb)
 {
+	int ipv = qeth_get_ip_version(skb);
 	struct neighbour *n = NULL;
 	struct dst_entry *dst;
 
 	rcu_read_lock();
 	dst = skb_dst(skb);
-	if (dst)
-		n = dst_neigh_lookup_skb(dst, skb);
+	if (dst) {
+		struct rt6_info *rt = (struct rt6_info *) dst;
+
+		dst = dst_check(dst, (ipv == 6) ? rt6_get_cookie(rt) : 0);
+		if (dst)
+			n = dst_neigh_lookup_skb(dst, skb);
+	}
+
 	if (n) {
 		int cast_type = n->type;
 
@@ -1904,8 +1911,10 @@ static int qeth_l3_get_cast_type(struct
 	rcu_read_unlock();
 
 	/* no neighbour (eg AF_PACKET), fall back to target's IP address ... */
-	switch (qeth_get_ip_version(skb)) {
+	switch (ipv) {
 	case 4:
+		if (ipv4_is_lbcast(ip_hdr(skb)->daddr))
+			return RTN_BROADCAST;
 		return ipv4_is_multicast(ip_hdr(skb)->daddr) ?
 				RTN_MULTICAST : RTN_UNICAST;
 	case 6:
@@ -1941,6 +1950,7 @@ static void qeth_l3_fill_header(struct q
 	struct qeth_hdr_layer3 *l3_hdr = &hdr->hdr.l3;
 	struct vlan_ethhdr *veth = vlan_eth_hdr(skb);
 	struct qeth_card *card = queue->card;
+	struct dst_entry *dst;
 
 	hdr->hdr.l3.length = data_len;
 
@@ -1991,15 +2001,27 @@ static void qeth_l3_fill_header(struct q
 
 	hdr->hdr.l3.flags = qeth_l3_cast_type_to_flag(cast_type);
 	rcu_read_lock();
+	dst = skb_dst(skb);
+
 	if (ipv == 4) {
-		struct rtable *rt = skb_rtable(skb);
+		struct rtable *rt;
+
+		if (dst)
+			dst = dst_check(dst, 0);
+		rt = (struct rtable *) dst;
 
 		*((__be32 *) &hdr->hdr.l3.next_hop.ipv4.addr) = (rt) ?
 				rt_nexthop(rt, ip_hdr(skb)->daddr) :
 				ip_hdr(skb)->daddr;
 	} else {
 		/* IPv6 */
-		const struct rt6_info *rt = skb_rt6_info(skb);
+		struct rt6_info *rt;
+
+		if (dst) {
+			rt = (struct rt6_info *) dst;
+			dst = dst_check(dst, rt6_get_cookie(rt));
+		}
+		rt = (struct rt6_info *) dst;
 
 		if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
 			l3_hdr->next_hop.ipv6_addr = rt->rt6i_gateway;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_ext.h linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_ext.h
--- linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_ext.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_ext.h	2019-07-28 02:28:39.000000000 -0400
@@ -167,6 +167,7 @@ extern const struct attribute_group *zfc
 extern struct mutex zfcp_sysfs_port_units_mutex;
 extern struct device_attribute *zfcp_sysfs_sdev_attrs[];
 extern struct device_attribute *zfcp_sysfs_shost_attrs[];
+bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port);
 
 /* zfcp_unit.c */
 extern int zfcp_unit_add(struct zfcp_port *, u64);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_fsf.c linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_fsf.c
--- linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_fsf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_fsf.c	2019-07-28 02:28:39.000000000 -0400
@@ -11,6 +11,7 @@
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
 #include <linux/blktrace_api.h>
+#include <linux/types.h>
 #include <linux/slab.h>
 #include <scsi/fc/fc_els.h>
 #include "zfcp_ext.h"
@@ -741,6 +742,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req
 
 static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
 {
+	const bool is_srb = zfcp_fsf_req_is_status_read_buffer(req);
 	struct zfcp_adapter *adapter = req->adapter;
 	struct zfcp_qdio *qdio = adapter->qdio;
 	int req_id = req->req_id;
@@ -757,8 +759,20 @@ static int zfcp_fsf_req_send(struct zfcp
 		return -EIO;
 	}
 
+	/*
+	 * NOTE: DO NOT TOUCH ASYNC req PAST THIS POINT.
+	 *	 ONLY TOUCH SYNC req AGAIN ON req->completion.
+	 *
+	 * The request might complete and be freed concurrently at any point
+	 * now. This is not protected by the QDIO-lock (req_q_lock). So any
+	 * uncontrolled access after this might result in an use-after-free bug.
+	 * Only if the request doesn't have ZFCP_STATUS_FSFREQ_CLEANUP set, and
+	 * when it is completed via req->completion, is it safe to use req
+	 * again.
+	 */
+
 	/* Don't increase for unsolicited status */
-	if (!zfcp_fsf_req_is_status_read_buffer(req))
+	if (!is_srb)
 		adapter->fsf_req_seq_no++;
 	adapter->req_no++;
 
@@ -805,6 +819,7 @@ int zfcp_fsf_status_read(struct zfcp_qdi
 	retval = zfcp_fsf_req_send(req);
 	if (retval)
 		goto failed_req_send;
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 
 	goto out;
 
@@ -914,8 +929,10 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_
 	req->qtcb->bottom.support.req_handle = (u64) old_req_id;
 
 	zfcp_fsf_start_timer(req, ZFCP_FSF_SCSI_ER_TIMEOUT);
-	if (!zfcp_fsf_req_send(req))
+	if (!zfcp_fsf_req_send(req)) {
+		/* NOTE: DO NOT TOUCH req, UNTIL IT COMPLETES! */
 		goto out;
+	}
 
 out_error_free:
 	zfcp_fsf_req_free(req);
@@ -1098,6 +1115,7 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_
 	ret = zfcp_fsf_req_send(req);
 	if (ret)
 		goto failed_send;
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 
 	goto out;
 
@@ -1198,6 +1216,7 @@ int zfcp_fsf_send_els(struct zfcp_adapte
 	ret = zfcp_fsf_req_send(req);
 	if (ret)
 		goto failed_send;
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 
 	goto out;
 
@@ -1243,6 +1262,7 @@ int zfcp_fsf_exchange_config_data(struct
 		zfcp_fsf_req_free(req);
 		erp_action->fsf_req_id = 0;
 	}
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
@@ -1279,8 +1299,10 @@ int zfcp_fsf_exchange_config_data_sync(s
 	zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
 	retval = zfcp_fsf_req_send(req);
 	spin_unlock_irq(&qdio->req_q_lock);
-	if (!retval)
+	if (!retval) {
+		/* NOTE: ONLY TOUCH SYNC req AGAIN ON req->completion. */
 		wait_for_completion(&req->completion);
+	}
 
 	zfcp_fsf_req_free(req);
 	return retval;
@@ -1330,6 +1352,7 @@ int zfcp_fsf_exchange_port_data(struct z
 		zfcp_fsf_req_free(req);
 		erp_action->fsf_req_id = 0;
 	}
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
@@ -1372,8 +1395,10 @@ int zfcp_fsf_exchange_port_data_sync(str
 	retval = zfcp_fsf_req_send(req);
 	spin_unlock_irq(&qdio->req_q_lock);
 
-	if (!retval)
+	if (!retval) {
+		/* NOTE: ONLY TOUCH SYNC req AGAIN ON req->completion. */
 		wait_for_completion(&req->completion);
+	}
 
 	zfcp_fsf_req_free(req);
 
@@ -1493,6 +1518,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_a
 		erp_action->fsf_req_id = 0;
 		put_device(&port->dev);
 	}
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
@@ -1557,6 +1583,7 @@ int zfcp_fsf_close_port(struct zfcp_erp_
 		zfcp_fsf_req_free(req);
 		erp_action->fsf_req_id = 0;
 	}
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
@@ -1600,6 +1627,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_f
 {
 	struct zfcp_qdio *qdio = wka_port->adapter->qdio;
 	struct zfcp_fsf_req *req;
+	unsigned long req_id = 0;
 	int retval = -EIO;
 
 	spin_lock_irq(&qdio->req_q_lock);
@@ -1622,14 +1650,17 @@ int zfcp_fsf_open_wka_port(struct zfcp_f
 	hton24(req->qtcb->bottom.support.d_id, wka_port->d_id);
 	req->data = wka_port;
 
+	req_id = req->req_id;
+
 	zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
 	retval = zfcp_fsf_req_send(req);
 	if (retval)
 		zfcp_fsf_req_free(req);
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	if (!retval)
-		zfcp_dbf_rec_run_wka("fsowp_1", wka_port, req->req_id);
+		zfcp_dbf_rec_run_wka("fsowp_1", wka_port, req_id);
 	return retval;
 }
 
@@ -1655,6 +1686,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_
 {
 	struct zfcp_qdio *qdio = wka_port->adapter->qdio;
 	struct zfcp_fsf_req *req;
+	unsigned long req_id = 0;
 	int retval = -EIO;
 
 	spin_lock_irq(&qdio->req_q_lock);
@@ -1677,14 +1709,17 @@ int zfcp_fsf_close_wka_port(struct zfcp_
 	req->data = wka_port;
 	req->qtcb->header.port_handle = wka_port->handle;
 
+	req_id = req->req_id;
+
 	zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
 	retval = zfcp_fsf_req_send(req);
 	if (retval)
 		zfcp_fsf_req_free(req);
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	if (!retval)
-		zfcp_dbf_rec_run_wka("fscwp_1", wka_port, req->req_id);
+		zfcp_dbf_rec_run_wka("fscwp_1", wka_port, req_id);
 	return retval;
 }
 
@@ -1776,6 +1811,7 @@ int zfcp_fsf_close_physical_port(struct
 		zfcp_fsf_req_free(req);
 		erp_action->fsf_req_id = 0;
 	}
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
@@ -1899,6 +1935,7 @@ int zfcp_fsf_open_lun(struct zfcp_erp_ac
 		zfcp_fsf_req_free(req);
 		erp_action->fsf_req_id = 0;
 	}
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
@@ -1987,6 +2024,7 @@ int zfcp_fsf_close_lun(struct zfcp_erp_a
 		zfcp_fsf_req_free(req);
 		erp_action->fsf_req_id = 0;
 	}
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
@@ -2299,6 +2337,7 @@ int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *
 	retval = zfcp_fsf_req_send(req);
 	if (unlikely(retval))
 		goto failed_scsi_cmnd;
+	/* NOTE: DO NOT TOUCH req PAST THIS POINT! */
 
 	goto out;
 
@@ -2373,8 +2412,10 @@ struct zfcp_fsf_req *zfcp_fsf_fcp_task_m
 	zfcp_fc_fcp_tm(fcp_cmnd, sdev, tm_flags);
 
 	zfcp_fsf_start_timer(req, ZFCP_FSF_SCSI_ER_TIMEOUT);
-	if (!zfcp_fsf_req_send(req))
+	if (!zfcp_fsf_req_send(req)) {
+		/* NOTE: DO NOT TOUCH req, UNTIL IT COMPLETES! */
 		goto out;
+	}
 
 	zfcp_fsf_req_free(req);
 	req = NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_scsi.c linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_scsi.c
--- linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_scsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_scsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -129,6 +129,15 @@ static int zfcp_scsi_slave_alloc(struct
 
 	zfcp_sdev->erp_action.port = port;
 
+	mutex_lock(&zfcp_sysfs_port_units_mutex);
+	if (zfcp_sysfs_port_is_removing(port)) {
+		/* port is already gone */
+		mutex_unlock(&zfcp_sysfs_port_units_mutex);
+		put_device(&port->dev); /* undo zfcp_get_port_by_wwpn() */
+		return -ENXIO;
+	}
+	mutex_unlock(&zfcp_sysfs_port_units_mutex);
+
 	unit = zfcp_unit_find(port, zfcp_scsi_dev_lun(sdev));
 	if (unit)
 		put_device(&unit->dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_sysfs.c linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_sysfs.c
--- linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_sysfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_sysfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -235,6 +235,53 @@ static ZFCP_DEV_ATTR(adapter, port_resca
 
 DEFINE_MUTEX(zfcp_sysfs_port_units_mutex);
 
+static void zfcp_sysfs_port_set_removing(struct zfcp_port *const port)
+{
+	lockdep_assert_held(&zfcp_sysfs_port_units_mutex);
+	atomic_set(&port->units, -1);
+}
+
+bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port)
+{
+	lockdep_assert_held(&zfcp_sysfs_port_units_mutex);
+	return atomic_read(&port->units) == -1;
+}
+
+static bool zfcp_sysfs_port_in_use(struct zfcp_port *const port)
+{
+	struct zfcp_adapter *const adapter = port->adapter;
+	unsigned long flags;
+	struct scsi_device *sdev;
+	bool in_use = true;
+
+	mutex_lock(&zfcp_sysfs_port_units_mutex);
+	if (atomic_read(&port->units) > 0)
+		goto unlock_port_units_mutex; /* zfcp_unit(s) under port */
+
+	spin_lock_irqsave(adapter->scsi_host->host_lock, flags);
+	__shost_for_each_device(sdev, adapter->scsi_host) {
+		const struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev);
+
+		if (sdev->sdev_state == SDEV_DEL ||
+		    sdev->sdev_state == SDEV_CANCEL)
+			continue;
+		if (zsdev->port != port)
+			continue;
+		/* alive scsi_device under port of interest */
+		goto unlock_host_lock;
+	}
+
+	/* port is about to be removed, so no more unit_add or slave_alloc */
+	zfcp_sysfs_port_set_removing(port);
+	in_use = false;
+
+unlock_host_lock:
+	spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);
+unlock_port_units_mutex:
+	mutex_unlock(&zfcp_sysfs_port_units_mutex);
+	return in_use;
+}
+
 static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
 					    struct device_attribute *attr,
 					    const char *buf, size_t count)
@@ -257,15 +304,11 @@ static ssize_t zfcp_sysfs_port_remove_st
 	else
 		retval = 0;
 
-	mutex_lock(&zfcp_sysfs_port_units_mutex);
-	if (atomic_read(&port->units) > 0) {
+	if (zfcp_sysfs_port_in_use(port)) {
 		retval = -EBUSY;
-		mutex_unlock(&zfcp_sysfs_port_units_mutex);
+		put_device(&port->dev); /* undo zfcp_get_port_by_wwpn() */
 		goto out;
 	}
-	/* port is about to be removed, so no more unit_add */
-	atomic_set(&port->units, -1);
-	mutex_unlock(&zfcp_sysfs_port_units_mutex);
 
 	write_lock_irq(&adapter->port_list_lock);
 	list_del(&port->list);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_unit.c linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_unit.c
--- linux-libre-5.1-gnu/drivers/s390/scsi/zfcp_unit.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/s390/scsi/zfcp_unit.c	2019-07-28 02:28:39.000000000 -0400
@@ -124,7 +124,7 @@ int zfcp_unit_add(struct zfcp_port *port
 	int retval = 0;
 
 	mutex_lock(&zfcp_sysfs_port_units_mutex);
-	if (atomic_read(&port->units) == -1) {
+	if (zfcp_sysfs_port_is_removing(port)) {
 		/* port is already gone */
 		retval = -ENODEV;
 		goto out;
@@ -168,8 +168,14 @@ int zfcp_unit_add(struct zfcp_port *port
 	write_lock_irq(&port->unit_list_lock);
 	list_add_tail(&unit->list, &port->unit_list);
 	write_unlock_irq(&port->unit_list_lock);
+	/*
+	 * lock order: shost->scan_mutex before zfcp_sysfs_port_units_mutex
+	 * due to      zfcp_unit_scsi_scan() => zfcp_scsi_slave_alloc()
+	 */
+	mutex_unlock(&zfcp_sysfs_port_units_mutex);
 
 	zfcp_unit_scsi_scan(unit);
+	return retval;
 
 out:
 	mutex_unlock(&zfcp_sysfs_port_units_mutex);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/bnx2fc/bnx2fc_hwi.c linux-libre-5.1.21-gnu/drivers/scsi/bnx2fc/bnx2fc_hwi.c
--- linux-libre-5.1-gnu/drivers/scsi/bnx2fc/bnx2fc_hwi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/bnx2fc/bnx2fc_hwi.c	2019-07-28 02:28:39.000000000 -0400
@@ -830,7 +830,7 @@ ret_err_rqe:
 			((u64)err_entry->data.err_warn_bitmap_hi << 32) |
 			(u64)err_entry->data.err_warn_bitmap_lo;
 		for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
-			if (err_warn_bit_map & (u64) (1 << i)) {
+			if (err_warn_bit_map & ((u64)1 << i)) {
 				err_warn = i;
 				break;
 			}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/cxgbi/libcxgbi.c linux-libre-5.1.21-gnu/drivers/scsi/cxgbi/libcxgbi.c
--- linux-libre-5.1-gnu/drivers/scsi/cxgbi/libcxgbi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/cxgbi/libcxgbi.c	2019-07-28 02:28:39.000000000 -0400
@@ -641,6 +641,10 @@ cxgbi_check_route(struct sockaddr *dst_a
 
 	if (ndev->flags & IFF_LOOPBACK) {
 		ndev = ip_dev_find(&init_net, daddr->sin_addr.s_addr);
+		if (!ndev) {
+			err = -ENETUNREACH;
+			goto rel_neigh;
+		}
 		mtu = ndev->mtu;
 		pr_info("rt dev %s, loopback -> %s, mtu %u.\n",
 			n->dev->name, ndev->name, mtu);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/device_handler/scsi_dh_alua.c linux-libre-5.1.21-gnu/drivers/scsi/device_handler/scsi_dh_alua.c
--- linux-libre-5.1-gnu/drivers/scsi/device_handler/scsi_dh_alua.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/device_handler/scsi_dh_alua.c	2019-07-28 02:28:39.000000000 -0400
@@ -1174,10 +1174,8 @@ static int __init alua_init(void)
 	int r;
 
 	kaluad_wq = alloc_workqueue("kaluad", WQ_MEM_RECLAIM, 0);
-	if (!kaluad_wq) {
-		/* Temporary failure, bypass */
-		return SCSI_DH_DEV_TEMP_BUSY;
-	}
+	if (!kaluad_wq)
+		return -ENOMEM;
 
 	r = scsi_register_device_handler(&alua_dh);
 	if (r != 0) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/hpsa.c linux-libre-5.1.21-gnu/drivers/scsi/hpsa.c
--- linux-libre-5.1-gnu/drivers/scsi/hpsa.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/hpsa.c	2019-07-28 02:28:39.000000000 -0400
@@ -4925,7 +4925,7 @@ static int hpsa_scsi_ioaccel2_queue_comm
 			curr_sg->reserved[0] = 0;
 			curr_sg->reserved[1] = 0;
 			curr_sg->reserved[2] = 0;
-			curr_sg->chain_indicator = 0x80;
+			curr_sg->chain_indicator = IOACCEL2_CHAIN;
 
 			curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex];
 		}
@@ -4942,6 +4942,11 @@ static int hpsa_scsi_ioaccel2_queue_comm
 			curr_sg++;
 		}
 
+		/*
+		 * Set the last s/g element bit
+		 */
+		(curr_sg - 1)->chain_indicator = IOACCEL2_LAST_SG;
+
 		switch (cmd->sc_data_direction) {
 		case DMA_TO_DEVICE:
 			cp->direction &= ~IOACCEL2_DIRECTION_MASK;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/hpsa_cmd.h linux-libre-5.1.21-gnu/drivers/scsi/hpsa_cmd.h
--- linux-libre-5.1-gnu/drivers/scsi/hpsa_cmd.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/hpsa_cmd.h	2019-07-28 02:28:39.000000000 -0400
@@ -517,6 +517,7 @@ struct ioaccel2_sg_element {
 	u8 reserved[3];
 	u8 chain_indicator;
 #define IOACCEL2_CHAIN 0x80
+#define IOACCEL2_LAST_SG 0x40
 };
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/libsas/sas_expander.c linux-libre-5.1.21-gnu/drivers/scsi/libsas/sas_expander.c
--- linux-libre-5.1-gnu/drivers/scsi/libsas/sas_expander.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/libsas/sas_expander.c	2019-07-28 02:28:39.000000000 -0400
@@ -1014,6 +1014,8 @@ static struct domain_device *sas_ex_disc
 		list_del(&child->dev_list_node);
 		spin_unlock_irq(&parent->port->dev_list_lock);
 		sas_put_device(child);
+		sas_port_delete(phy->port);
+		phy->port = NULL;
 		return NULL;
 	}
 	list_add_tail(&child->siblings, &parent->ex_dev.children);
@@ -2052,6 +2054,11 @@ static int sas_rediscover_dev(struct dom
 	if ((SAS_ADDR(sas_addr) == 0) || (res == -ECOMM)) {
 		phy->phy_state = PHY_EMPTY;
 		sas_unregister_devs_sas_addr(dev, phy_id, last);
+		/*
+		 * Even though the PHY is empty, for convenience we discover
+		 * the PHY to update the PHY info, like negotiated linkrate.
+		 */
+		sas_ex_phy_discover(dev, phy_id);
 		return res;
 	} else if (SAS_ADDR(sas_addr) == SAS_ADDR(phy->attached_sas_addr) &&
 		   dev_type_flutter(type, phy->attached_dev_type)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_attr.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_attr.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_attr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_attr.c	2019-07-28 02:28:39.000000000 -0400
@@ -114,7 +114,7 @@ static ssize_t
 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
 		       char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
+	return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
 }
 
 /**
@@ -134,9 +134,9 @@ lpfc_enable_fip_show(struct device *dev,
 	struct lpfc_hba   *phba = vport->phba;
 
 	if (phba->hba_flag & HBA_FIP_SUPPORT)
-		return snprintf(buf, PAGE_SIZE, "1\n");
+		return scnprintf(buf, PAGE_SIZE, "1\n");
 	else
-		return snprintf(buf, PAGE_SIZE, "0\n");
+		return scnprintf(buf, PAGE_SIZE, "0\n");
 }
 
 static ssize_t
@@ -159,6 +159,7 @@ lpfc_nvme_info_show(struct device *dev,
 	int i;
 	int len = 0;
 	char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0};
+	unsigned long iflags = 0;
 
 	if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
 		len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n");
@@ -337,7 +338,7 @@ lpfc_nvme_info_show(struct device *dev,
 		  phba->sli4_hba.io_xri_max,
 		  lpfc_sli4_get_els_iocb_cnt(phba));
 	if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
-		goto buffer_done;
+		goto rcu_unlock_buf_done;
 
 	/* Port state is only one of two values for now. */
 	if (localport->port_id)
@@ -353,15 +354,15 @@ lpfc_nvme_info_show(struct device *dev,
 		  wwn_to_u64(vport->fc_nodename.u.wwn),
 		  localport->port_id, statep);
 	if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
-		goto buffer_done;
+		goto rcu_unlock_buf_done;
 
 	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
 		nrport = NULL;
-		spin_lock(&vport->phba->hbalock);
+		spin_lock_irqsave(&vport->phba->hbalock, iflags);
 		rport = lpfc_ndlp_get_nrport(ndlp);
 		if (rport)
 			nrport = rport->remoteport;
-		spin_unlock(&vport->phba->hbalock);
+		spin_unlock_irqrestore(&vport->phba->hbalock, iflags);
 		if (!nrport)
 			continue;
 
@@ -380,39 +381,39 @@ lpfc_nvme_info_show(struct device *dev,
 
 		/* Tab in to show lport ownership. */
 		if (strlcat(buf, "NVME RPORT       ", PAGE_SIZE) >= PAGE_SIZE)
-			goto buffer_done;
+			goto rcu_unlock_buf_done;
 		if (phba->brd_no >= 10) {
 			if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE)
-				goto buffer_done;
+				goto rcu_unlock_buf_done;
 		}
 
 		scnprintf(tmp, sizeof(tmp), "WWPN x%llx ",
 			  nrport->port_name);
 		if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
-			goto buffer_done;
+			goto rcu_unlock_buf_done;
 
 		scnprintf(tmp, sizeof(tmp), "WWNN x%llx ",
 			  nrport->node_name);
 		if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
-			goto buffer_done;
+			goto rcu_unlock_buf_done;
 
 		scnprintf(tmp, sizeof(tmp), "DID x%06x ",
 			  nrport->port_id);
 		if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
-			goto buffer_done;
+			goto rcu_unlock_buf_done;
 
 		/* An NVME rport can have multiple roles. */
 		if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) {
 			if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE)
-				goto buffer_done;
+				goto rcu_unlock_buf_done;
 		}
 		if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) {
 			if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE)
-				goto buffer_done;
+				goto rcu_unlock_buf_done;
 		}
 		if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) {
 			if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE)
-				goto buffer_done;
+				goto rcu_unlock_buf_done;
 		}
 		if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
 					  FC_PORT_ROLE_NVME_TARGET |
@@ -420,12 +421,12 @@ lpfc_nvme_info_show(struct device *dev,
 			scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x",
 				  nrport->port_role);
 			if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
-				goto buffer_done;
+				goto rcu_unlock_buf_done;
 		}
 
 		scnprintf(tmp, sizeof(tmp), "%s\n", statep);
 		if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
-			goto buffer_done;
+			goto rcu_unlock_buf_done;
 	}
 	rcu_read_unlock();
 
@@ -487,7 +488,13 @@ lpfc_nvme_info_show(struct device *dev,
 		  atomic_read(&lport->cmpl_fcp_err));
 	strlcat(buf, tmp, PAGE_SIZE);
 
-buffer_done:
+	/* RCU is already unlocked. */
+	goto buffer_done;
+
+ rcu_unlock_buf_done:
+	rcu_read_unlock();
+
+ buffer_done:
 	len = strnlen(buf, PAGE_SIZE);
 
 	if (unlikely(len >= (PAGE_SIZE - 1))) {
@@ -564,14 +571,15 @@ lpfc_bg_info_show(struct device *dev, st
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	if (phba->cfg_enable_bg)
+	if (phba->cfg_enable_bg) {
 		if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
-			return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
+			return scnprintf(buf, PAGE_SIZE,
+					"BlockGuard Enabled\n");
 		else
-			return snprintf(buf, PAGE_SIZE,
+			return scnprintf(buf, PAGE_SIZE,
 					"BlockGuard Not Supported\n");
-	else
-			return snprintf(buf, PAGE_SIZE,
+	} else
+		return scnprintf(buf, PAGE_SIZE,
 					"BlockGuard Disabled\n");
 }
 
@@ -583,7 +591,7 @@ lpfc_bg_guard_err_show(struct device *de
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n",
+	return scnprintf(buf, PAGE_SIZE, "%llu\n",
 			(unsigned long long)phba->bg_guard_err_cnt);
 }
 
@@ -595,7 +603,7 @@ lpfc_bg_apptag_err_show(struct device *d
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n",
+	return scnprintf(buf, PAGE_SIZE, "%llu\n",
 			(unsigned long long)phba->bg_apptag_err_cnt);
 }
 
@@ -607,7 +615,7 @@ lpfc_bg_reftag_err_show(struct device *d
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n",
+	return scnprintf(buf, PAGE_SIZE, "%llu\n",
 			(unsigned long long)phba->bg_reftag_err_cnt);
 }
 
@@ -625,7 +633,7 @@ lpfc_info_show(struct device *dev, struc
 {
 	struct Scsi_Host *host = class_to_shost(dev);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
+	return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host));
 }
 
 /**
@@ -644,7 +652,7 @@ lpfc_serialnum_show(struct device *dev,
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
+	return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber);
 }
 
 /**
@@ -666,7 +674,7 @@ lpfc_temp_sensor_show(struct device *dev
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
-	return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support);
 }
 
 /**
@@ -685,7 +693,7 @@ lpfc_modeldesc_show(struct device *dev,
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
+	return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc);
 }
 
 /**
@@ -704,7 +712,7 @@ lpfc_modelname_show(struct device *dev,
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
+	return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName);
 }
 
 /**
@@ -723,7 +731,7 @@ lpfc_programtype_show(struct device *dev
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
+	return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType);
 }
 
 /**
@@ -741,7 +749,7 @@ lpfc_mlomgmt_show(struct device *dev, st
 	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
+	return scnprintf(buf, PAGE_SIZE, "%d\n",
 		(phba->sli.sli_flag & LPFC_MENLO_MAINT));
 }
 
@@ -761,7 +769,7 @@ lpfc_vportnum_show(struct device *dev, s
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
+	return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port);
 }
 
 /**
@@ -789,10 +797,10 @@ lpfc_fwrev_show(struct device *dev, stru
 	sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
 
 	if (phba->sli_rev < LPFC_SLI_REV4)
-		len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
+		len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
 			       fwrev, phba->sli_rev);
 	else
-		len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
+		len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
 			       fwrev, phba->sli_rev, if_type, sli_family);
 
 	return len;
@@ -816,7 +824,7 @@ lpfc_hdw_show(struct device *dev, struct
 	lpfc_vpd_t *vp = &phba->vpd;
 
 	lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
-	return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
+	return scnprintf(buf, PAGE_SIZE, "%s\n", hdw);
 }
 
 /**
@@ -837,10 +845,11 @@ lpfc_option_rom_version_show(struct devi
 	char fwrev[FW_REV_STR_SIZE];
 
 	if (phba->sli_rev < LPFC_SLI_REV4)
-		return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
+		return scnprintf(buf, PAGE_SIZE, "%s\n",
+				phba->OptionROMVersion);
 
 	lpfc_decode_firmware_rev(phba, fwrev, 1);
-	return snprintf(buf, PAGE_SIZE, "%s\n", fwrev);
+	return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev);
 }
 
 /**
@@ -871,20 +880,20 @@ lpfc_link_state_show(struct device *dev,
 	case LPFC_LINK_DOWN:
 	case LPFC_HBA_ERROR:
 		if (phba->hba_flag & LINK_DISABLED)
-			len += snprintf(buf + len, PAGE_SIZE-len,
+			len += scnprintf(buf + len, PAGE_SIZE-len,
 				"Link Down - User disabled\n");
 		else
-			len += snprintf(buf + len, PAGE_SIZE-len,
+			len += scnprintf(buf + len, PAGE_SIZE-len,
 				"Link Down\n");
 		break;
 	case LPFC_LINK_UP:
 	case LPFC_CLEAR_LA:
 	case LPFC_HBA_READY:
-		len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
+		len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
 
 		switch (vport->port_state) {
 		case LPFC_LOCAL_CFG_LINK:
-			len += snprintf(buf + len, PAGE_SIZE-len,
+			len += scnprintf(buf + len, PAGE_SIZE-len,
 					"Configuring Link\n");
 			break;
 		case LPFC_FDISC:
@@ -894,38 +903,40 @@ lpfc_link_state_show(struct device *dev,
 		case LPFC_NS_QRY:
 		case LPFC_BUILD_DISC_LIST:
 		case LPFC_DISC_AUTH:
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 					"Discovery\n");
 			break;
 		case LPFC_VPORT_READY:
-			len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
+			len += scnprintf(buf + len, PAGE_SIZE - len,
+					"Ready\n");
 			break;
 
 		case LPFC_VPORT_FAILED:
-			len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
+			len += scnprintf(buf + len, PAGE_SIZE - len,
+					"Failed\n");
 			break;
 
 		case LPFC_VPORT_UNKNOWN:
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 					"Unknown\n");
 			break;
 		}
 		if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
-			len += snprintf(buf + len, PAGE_SIZE-len,
+			len += scnprintf(buf + len, PAGE_SIZE-len,
 					"   Menlo Maint Mode\n");
 		else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
 			if (vport->fc_flag & FC_PUBLIC_LOOP)
-				len += snprintf(buf + len, PAGE_SIZE-len,
+				len += scnprintf(buf + len, PAGE_SIZE-len,
 						"   Public Loop\n");
 			else
-				len += snprintf(buf + len, PAGE_SIZE-len,
+				len += scnprintf(buf + len, PAGE_SIZE-len,
 						"   Private Loop\n");
 		} else {
 			if (vport->fc_flag & FC_FABRIC)
-				len += snprintf(buf + len, PAGE_SIZE-len,
+				len += scnprintf(buf + len, PAGE_SIZE-len,
 						"   Fabric\n");
 			else
-				len += snprintf(buf + len, PAGE_SIZE-len,
+				len += scnprintf(buf + len, PAGE_SIZE-len,
 						"   Point-2-Point\n");
 		}
 	}
@@ -937,28 +948,28 @@ lpfc_link_state_show(struct device *dev,
 		struct lpfc_trunk_link link = phba->trunk_link;
 
 		if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 				"Trunk port 0: Link %s %s\n",
 				(link.link0.state == LPFC_LINK_UP) ?
 				 "Up" : "Down. ",
 				trunk_errmsg[link.link0.fault]);
 
 		if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 				"Trunk port 1: Link %s %s\n",
 				(link.link1.state == LPFC_LINK_UP) ?
 				 "Up" : "Down. ",
 				trunk_errmsg[link.link1.fault]);
 
 		if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 				"Trunk port 2: Link %s %s\n",
 				(link.link2.state == LPFC_LINK_UP) ?
 				 "Up" : "Down. ",
 				trunk_errmsg[link.link2.fault]);
 
 		if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 				"Trunk port 3: Link %s %s\n",
 				(link.link3.state == LPFC_LINK_UP) ?
 				 "Up" : "Down. ",
@@ -986,15 +997,15 @@ lpfc_sli4_protocol_show(struct device *d
 	struct lpfc_hba *phba = vport->phba;
 
 	if (phba->sli_rev < LPFC_SLI_REV4)
-		return snprintf(buf, PAGE_SIZE, "fc\n");
+		return scnprintf(buf, PAGE_SIZE, "fc\n");
 
 	if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
 		if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
-			return snprintf(buf, PAGE_SIZE, "fcoe\n");
+			return scnprintf(buf, PAGE_SIZE, "fcoe\n");
 		if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
-			return snprintf(buf, PAGE_SIZE, "fc\n");
+			return scnprintf(buf, PAGE_SIZE, "fc\n");
 	}
-	return snprintf(buf, PAGE_SIZE, "unknown\n");
+	return scnprintf(buf, PAGE_SIZE, "unknown\n");
 }
 
 /**
@@ -1014,7 +1025,7 @@ lpfc_oas_supported_show(struct device *d
 	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
 	struct lpfc_hba *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
+	return scnprintf(buf, PAGE_SIZE, "%d\n",
 			phba->sli4_hba.pc_sli4_params.oas_supported);
 }
 
@@ -1072,7 +1083,7 @@ lpfc_num_discovered_ports_show(struct de
 	struct Scsi_Host  *shost = class_to_shost(dev);
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
+	return scnprintf(buf, PAGE_SIZE, "%d\n",
 			vport->fc_map_cnt + vport->fc_unmap_cnt);
 }
 
@@ -1586,7 +1597,7 @@ lpfc_nport_evt_cnt_show(struct device *d
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
 }
 
 int
@@ -1675,7 +1686,7 @@ lpfc_board_mode_show(struct device *dev,
 	else
 		state = "online";
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", state);
+	return scnprintf(buf, PAGE_SIZE, "%s\n", state);
 }
 
 /**
@@ -1901,8 +1912,8 @@ lpfc_max_rpi_show(struct device *dev, st
 	uint32_t cnt;
 
 	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
-		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
-	return snprintf(buf, PAGE_SIZE, "Unknown\n");
+		return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
+	return scnprintf(buf, PAGE_SIZE, "Unknown\n");
 }
 
 /**
@@ -1929,8 +1940,8 @@ lpfc_used_rpi_show(struct device *dev, s
 	uint32_t cnt, acnt;
 
 	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
-		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
-	return snprintf(buf, PAGE_SIZE, "Unknown\n");
+		return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
+	return scnprintf(buf, PAGE_SIZE, "Unknown\n");
 }
 
 /**
@@ -1957,8 +1968,8 @@ lpfc_max_xri_show(struct device *dev, st
 	uint32_t cnt;
 
 	if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
-		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
-	return snprintf(buf, PAGE_SIZE, "Unknown\n");
+		return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
+	return scnprintf(buf, PAGE_SIZE, "Unknown\n");
 }
 
 /**
@@ -1985,8 +1996,8 @@ lpfc_used_xri_show(struct device *dev, s
 	uint32_t cnt, acnt;
 
 	if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
-		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
-	return snprintf(buf, PAGE_SIZE, "Unknown\n");
+		return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
+	return scnprintf(buf, PAGE_SIZE, "Unknown\n");
 }
 
 /**
@@ -2013,8 +2024,8 @@ lpfc_max_vpi_show(struct device *dev, st
 	uint32_t cnt;
 
 	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
-		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
-	return snprintf(buf, PAGE_SIZE, "Unknown\n");
+		return scnprintf(buf, PAGE_SIZE, "%d\n", cnt);
+	return scnprintf(buf, PAGE_SIZE, "Unknown\n");
 }
 
 /**
@@ -2041,8 +2052,8 @@ lpfc_used_vpi_show(struct device *dev, s
 	uint32_t cnt, acnt;
 
 	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
-		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
-	return snprintf(buf, PAGE_SIZE, "Unknown\n");
+		return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
+	return scnprintf(buf, PAGE_SIZE, "Unknown\n");
 }
 
 /**
@@ -2067,10 +2078,10 @@ lpfc_npiv_info_show(struct device *dev,
 	struct lpfc_hba   *phba = vport->phba;
 
 	if (!(phba->max_vpi))
-		return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
+		return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
 	if (vport->port_type == LPFC_PHYSICAL_PORT)
-		return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
-	return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
+		return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n");
+	return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
 }
 
 /**
@@ -2092,7 +2103,7 @@ lpfc_poll_show(struct device *dev, struc
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
+	return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
 }
 
 /**
@@ -2196,7 +2207,7 @@ lpfc_fips_level_show(struct device *dev,
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
 }
 
 /**
@@ -2215,7 +2226,7 @@ lpfc_fips_rev_show(struct device *dev,
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
 }
 
 /**
@@ -2234,7 +2245,7 @@ lpfc_dss_show(struct device *dev, struct
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
+	return scnprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
 			(phba->cfg_enable_dss) ? "Enabled" : "Disabled",
 			(phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
 				"" : "Not ");
@@ -2263,7 +2274,7 @@ lpfc_sriov_hw_max_virtfn_show(struct dev
 	uint16_t max_nr_virtfn;
 
 	max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
-	return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
 }
 
 static inline bool lpfc_rangecheck(uint val, uint min, uint max)
@@ -2323,7 +2334,7 @@ lpfc_##attr##_show(struct device *dev, s
 	struct Scsi_Host  *shost = class_to_shost(dev);\
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
 	struct lpfc_hba   *phba = vport->phba;\
-	return snprintf(buf, PAGE_SIZE, "%d\n",\
+	return scnprintf(buf, PAGE_SIZE, "%d\n",\
 			phba->cfg_##attr);\
 }
 
@@ -2351,7 +2362,7 @@ lpfc_##attr##_show(struct device *dev, s
 	struct lpfc_hba   *phba = vport->phba;\
 	uint val = 0;\
 	val = phba->cfg_##attr;\
-	return snprintf(buf, PAGE_SIZE, "%#x\n",\
+	return scnprintf(buf, PAGE_SIZE, "%#x\n",\
 			phba->cfg_##attr);\
 }
 
@@ -2487,7 +2498,7 @@ lpfc_##attr##_show(struct device *dev, s
 { \
 	struct Scsi_Host  *shost = class_to_shost(dev);\
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
-	return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
+	return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
 }
 
 /**
@@ -2512,7 +2523,7 @@ lpfc_##attr##_show(struct device *dev, s
 { \
 	struct Scsi_Host  *shost = class_to_shost(dev);\
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
-	return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
+	return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
 }
 
 /**
@@ -2784,7 +2795,7 @@ lpfc_soft_wwpn_show(struct device *dev,
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 
-	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
+	return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
 			(unsigned long long)phba->cfg_soft_wwpn);
 }
 
@@ -2881,7 +2892,7 @@ lpfc_soft_wwnn_show(struct device *dev,
 {
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
-	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
+	return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
 			(unsigned long long)phba->cfg_soft_wwnn);
 }
 
@@ -2947,7 +2958,7 @@ lpfc_oas_tgt_show(struct device *dev, st
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
 
-	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
+	return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
 			wwn_to_u64(phba->cfg_oas_tgt_wwpn));
 }
 
@@ -3015,7 +3026,7 @@ lpfc_oas_priority_show(struct device *de
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority);
 }
 
 /**
@@ -3078,7 +3089,7 @@ lpfc_oas_vpt_show(struct device *dev, st
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
 
-	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
+	return scnprintf(buf, PAGE_SIZE, "0x%llx\n",
 			wwn_to_u64(phba->cfg_oas_vpt_wwpn));
 }
 
@@ -3149,7 +3160,7 @@ lpfc_oas_lun_state_show(struct device *d
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
 }
 
 /**
@@ -3213,7 +3224,7 @@ lpfc_oas_lun_status_show(struct device *
 	if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
 		return -EFAULT;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
 }
 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
 		   lpfc_oas_lun_status_show, NULL);
@@ -3365,7 +3376,7 @@ lpfc_oas_lun_show(struct device *dev, st
 	if (oas_lun != NOT_OAS_ENABLED_LUN)
 		phba->cfg_oas_flags |= OAS_LUN_VALID;
 
-	len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
+	len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
 
 	return len;
 }
@@ -3499,7 +3510,7 @@ lpfc_iocb_hw_show(struct device *dev, st
 	struct Scsi_Host  *shost = class_to_shost(dev);
 	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
+	return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
 }
 
 static DEVICE_ATTR(iocb_hw, S_IRUGO,
@@ -3511,7 +3522,7 @@ lpfc_txq_hw_show(struct device *dev, str
 	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
 	struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
+	return scnprintf(buf, PAGE_SIZE, "%d\n",
 			pring ? pring->txq_max : 0);
 }
 
@@ -3525,7 +3536,7 @@ lpfc_txcmplq_hw_show(struct device *dev,
 	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
 	struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba);
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
+	return scnprintf(buf, PAGE_SIZE, "%d\n",
 			pring ? pring->txcmplq_max : 0);
 }
 
@@ -3561,7 +3572,7 @@ lpfc_nodev_tmo_show(struct device *dev,
 	struct Scsi_Host  *shost = class_to_shost(dev);
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",	vport->cfg_devloss_tmo);
+	return scnprintf(buf, PAGE_SIZE, "%d\n",	vport->cfg_devloss_tmo);
 }
 
 /**
@@ -5169,12 +5180,12 @@ lpfc_fcp_cpu_map_show(struct device *dev
 
 	switch (phba->cfg_fcp_cpu_map) {
 	case 0:
-		len += snprintf(buf + len, PAGE_SIZE-len,
+		len += scnprintf(buf + len, PAGE_SIZE-len,
 				"fcp_cpu_map: No mapping (%d)\n",
 				phba->cfg_fcp_cpu_map);
 		return len;
 	case 1:
-		len += snprintf(buf + len, PAGE_SIZE-len,
+		len += scnprintf(buf + len, PAGE_SIZE-len,
 				"fcp_cpu_map: HBA centric mapping (%d): "
 				"%d of %d CPUs online from %d possible CPUs\n",
 				phba->cfg_fcp_cpu_map, num_online_cpus(),
@@ -5188,12 +5199,12 @@ lpfc_fcp_cpu_map_show(struct device *dev
 		cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu];
 
 		if (!cpu_present(phba->sli4_hba.curr_disp_cpu))
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 					"CPU %02d not present\n",
 					phba->sli4_hba.curr_disp_cpu);
 		else if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) {
 			if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
-				len += snprintf(
+				len += scnprintf(
 					buf + len, PAGE_SIZE - len,
 					"CPU %02d hdwq None "
 					"physid %d coreid %d ht %d\n",
@@ -5201,7 +5212,7 @@ lpfc_fcp_cpu_map_show(struct device *dev
 					cpup->phys_id,
 					cpup->core_id, cpup->hyper);
 			else
-				len += snprintf(
+				len += scnprintf(
 					buf + len, PAGE_SIZE - len,
 					"CPU %02d EQ %04d hdwq %04d "
 					"physid %d coreid %d ht %d\n",
@@ -5210,7 +5221,7 @@ lpfc_fcp_cpu_map_show(struct device *dev
 					cpup->core_id, cpup->hyper);
 		} else {
 			if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY)
-				len += snprintf(
+				len += scnprintf(
 					buf + len, PAGE_SIZE - len,
 					"CPU %02d hdwq None "
 					"physid %d coreid %d ht %d IRQ %d\n",
@@ -5218,7 +5229,7 @@ lpfc_fcp_cpu_map_show(struct device *dev
 					cpup->phys_id,
 					cpup->core_id, cpup->hyper, cpup->irq);
 			else
-				len += snprintf(
+				len += scnprintf(
 					buf + len, PAGE_SIZE - len,
 					"CPU %02d EQ %04d hdwq %04d "
 					"physid %d coreid %d ht %d IRQ %d\n",
@@ -5233,7 +5244,7 @@ lpfc_fcp_cpu_map_show(struct device *dev
 		if (phba->sli4_hba.curr_disp_cpu <
 				phba->sli4_hba.num_possible_cpu &&
 				(len >= (PAGE_SIZE - 64))) {
-			len += snprintf(buf + len,
+			len += scnprintf(buf + len,
 					PAGE_SIZE - len, "more...\n");
 			break;
 		}
@@ -5753,10 +5764,10 @@ lpfc_sg_seg_cnt_show(struct device *dev,
 	struct lpfc_hba   *phba = vport->phba;
 	int len;
 
-	len = snprintf(buf, PAGE_SIZE, "SGL sz: %d  total SGEs: %d\n",
+	len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d  total SGEs: %d\n",
 		       phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt);
 
-	len += snprintf(buf + len, PAGE_SIZE, "Cfg: %d  SCSI: %d  NVME: %d\n",
+	len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d  SCSI: %d  NVME: %d\n",
 			phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt,
 			phba->cfg_nvme_seg_cnt);
 	return len;
@@ -6755,7 +6766,7 @@ lpfc_show_rport_##field (struct device *
 {									\
 	struct fc_rport *rport = transport_class_to_rport(dev);		\
 	struct lpfc_rport_data *rdata = rport->hostdata;		\
-	return snprintf(buf, sz, format_string,				\
+	return scnprintf(buf, sz, format_string,			\
 		(rdata->target) ? cast rdata->target->field : 0);	\
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_ct.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_ct.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_ct.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_ct.c	2019-07-28 02:28:39.000000000 -0400
@@ -1430,7 +1430,7 @@ lpfc_vport_symbolic_port_name(struct lpf
 	 * Name object.  NPIV is not in play so this integer
 	 * value is sufficient and unique per FC-ID.
 	 */
-	n = snprintf(symbol, size, "%d", vport->phba->brd_no);
+	n = scnprintf(symbol, size, "%d", vport->phba->brd_no);
 	return n;
 }
 
@@ -1444,26 +1444,26 @@ lpfc_vport_symbolic_node_name(struct lpf
 
 	lpfc_decode_firmware_rev(vport->phba, fwrev, 0);
 
-	n = snprintf(symbol, size, "Emulex %s", vport->phba->ModelName);
+	n = scnprintf(symbol, size, "Emulex %s", vport->phba->ModelName);
 	if (size < n)
 		return n;
 
-	n += snprintf(symbol + n, size - n, " FV%s", fwrev);
+	n += scnprintf(symbol + n, size - n, " FV%s", fwrev);
 	if (size < n)
 		return n;
 
-	n += snprintf(symbol + n, size - n, " DV%s.",
+	n += scnprintf(symbol + n, size - n, " DV%s.",
 		      lpfc_release_version);
 	if (size < n)
 		return n;
 
-	n += snprintf(symbol + n, size - n, " HN:%s.",
+	n += scnprintf(symbol + n, size - n, " HN:%s.",
 		      init_utsname()->nodename);
 	if (size < n)
 		return n;
 
 	/* Note :- OS name is "Linux" */
-	n += snprintf(symbol + n, size - n, " OS:%s\n",
+	n += scnprintf(symbol + n, size - n, " OS:%s\n",
 		      init_utsname()->sysname);
 	return n;
 }
@@ -2005,8 +2005,11 @@ lpfc_fdmi_hba_attr_manufacturer(struct l
 	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
 	memset(ae, 0, 256);
 
+	/* This string MUST be consistent with other FC platforms
+	 * supported by Broadcom.
+	 */
 	strncpy(ae->un.AttrString,
-		"Broadcom Inc.",
+		"Emulex Corporation",
 		       sizeof(ae->un.AttrString));
 	len = strnlen(ae->un.AttrString,
 			  sizeof(ae->un.AttrString));
@@ -2360,10 +2363,11 @@ lpfc_fdmi_port_attr_fc4type(struct lpfc_
 	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
 	memset(ae, 0, 32);
 
-	ae->un.AttrTypes[3] = 0x02; /* Type 1 - ELS */
-	ae->un.AttrTypes[2] = 0x01; /* Type 8 - FCP */
-	ae->un.AttrTypes[6] = 0x01; /* Type 40 - NVME */
-	ae->un.AttrTypes[7] = 0x01; /* Type 32 - CT */
+	ae->un.AttrTypes[3] = 0x02; /* Type 0x1 - ELS */
+	ae->un.AttrTypes[2] = 0x01; /* Type 0x8 - FCP */
+	if (vport->nvmei_support || vport->phba->nvmet_support)
+		ae->un.AttrTypes[6] = 0x01; /* Type 0x28 - NVME */
+	ae->un.AttrTypes[7] = 0x01; /* Type 0x20 - CT */
 	size = FOURBYTES + 32;
 	ad->AttrLen = cpu_to_be16(size);
 	ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_FC4_TYPES);
@@ -2673,9 +2677,11 @@ lpfc_fdmi_port_attr_active_fc4type(struc
 	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
 	memset(ae, 0, 32);
 
-	ae->un.AttrTypes[3] = 0x02; /* Type 1 - ELS */
-	ae->un.AttrTypes[2] = 0x01; /* Type 8 - FCP */
-	ae->un.AttrTypes[7] = 0x01; /* Type 32 - CT */
+	ae->un.AttrTypes[3] = 0x02; /* Type 0x1 - ELS */
+	ae->un.AttrTypes[2] = 0x01; /* Type 0x8 - FCP */
+	if (vport->phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
+		ae->un.AttrTypes[6] = 0x1; /* Type 0x28 - NVME */
+	ae->un.AttrTypes[7] = 0x01; /* Type 0x20 - CT */
 	size = FOURBYTES + 32;
 	ad->AttrLen = cpu_to_be16(size);
 	ad->AttrType = cpu_to_be16(RPRT_ACTIVE_FC4_TYPES);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_debugfs.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_debugfs.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_debugfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_debugfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -170,7 +170,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_v
 		snprintf(buffer,
 			LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
 			dtp->seq_cnt, ms, dtp->fmt);
-		len +=  snprintf(buf+len, size-len, buffer,
+		len +=  scnprintf(buf+len, size-len, buffer,
 			dtp->data1, dtp->data2, dtp->data3);
 	}
 	for (i = 0; i < index; i++) {
@@ -181,7 +181,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_v
 		snprintf(buffer,
 			LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
 			dtp->seq_cnt, ms, dtp->fmt);
-		len +=  snprintf(buf+len, size-len, buffer,
+		len +=  scnprintf(buf+len, size-len, buffer,
 			dtp->data1, dtp->data2, dtp->data3);
 	}
 
@@ -236,7 +236,7 @@ lpfc_debugfs_slow_ring_trc_data(struct l
 		snprintf(buffer,
 			LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
 			dtp->seq_cnt, ms, dtp->fmt);
-		len +=  snprintf(buf+len, size-len, buffer,
+		len +=  scnprintf(buf+len, size-len, buffer,
 			dtp->data1, dtp->data2, dtp->data3);
 	}
 	for (i = 0; i < index; i++) {
@@ -247,7 +247,7 @@ lpfc_debugfs_slow_ring_trc_data(struct l
 		snprintf(buffer,
 			LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
 			dtp->seq_cnt, ms, dtp->fmt);
-		len +=  snprintf(buf+len, size-len, buffer,
+		len +=  scnprintf(buf+len, size-len, buffer,
 			dtp->data1, dtp->data2, dtp->data3);
 	}
 
@@ -307,7 +307,7 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hb
 
 	i = lpfc_debugfs_last_hbq;
 
-	len +=  snprintf(buf+len, size-len, "HBQ %d Info\n", i);
+	len +=  scnprintf(buf+len, size-len, "HBQ %d Info\n", i);
 
 	hbqs =  &phba->hbqs[i];
 	posted = 0;
@@ -315,21 +315,21 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hb
 		posted++;
 
 	hip =  lpfc_hbq_defs[i];
-	len +=  snprintf(buf+len, size-len,
+	len +=  scnprintf(buf+len, size-len,
 		"idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
 		hip->hbq_index, hip->profile, hip->rn,
 		hip->buffer_count, hip->init_count, hip->add_count, posted);
 
 	raw_index = phba->hbq_get[i];
 	getidx = le32_to_cpu(raw_index);
-	len +=  snprintf(buf+len, size-len,
+	len +=  scnprintf(buf+len, size-len,
 		"entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
 		hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
 		hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
 
 	hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
 	for (j=0; j<hbqs->entry_count; j++) {
-		len +=  snprintf(buf+len, size-len,
+		len +=  scnprintf(buf+len, size-len,
 			"%03d: %08x %04x %05x ", j,
 			le32_to_cpu(hbqe->bde.addrLow),
 			le32_to_cpu(hbqe->bde.tus.w),
@@ -341,14 +341,16 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hb
 		low = hbqs->hbqPutIdx - posted;
 		if (low >= 0) {
 			if ((j >= hbqs->hbqPutIdx) || (j < low)) {
-				len +=  snprintf(buf+len, size-len, "Unused\n");
+				len +=  scnprintf(buf + len, size - len,
+						"Unused\n");
 				goto skipit;
 			}
 		}
 		else {
 			if ((j >= hbqs->hbqPutIdx) &&
 				(j < (hbqs->entry_count+low))) {
-				len +=  snprintf(buf+len, size-len, "Unused\n");
+				len +=  scnprintf(buf + len, size - len,
+						"Unused\n");
 				goto skipit;
 			}
 		}
@@ -358,7 +360,7 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hb
 			hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
 			phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
 			if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
-				len +=  snprintf(buf+len, size-len,
+				len +=  scnprintf(buf+len, size-len,
 					"Buf%d: %p %06x\n", i,
 					hbq_buf->dbuf.virt, hbq_buf->tag);
 				found = 1;
@@ -367,7 +369,7 @@ lpfc_debugfs_hbqinfo_data(struct lpfc_hb
 			i++;
 		}
 		if (!found) {
-			len +=  snprintf(buf+len, size-len, "No DMAinfo?\n");
+			len +=  scnprintf(buf+len, size-len, "No DMAinfo?\n");
 		}
 skipit:
 		hbqe++;
@@ -413,14 +415,14 @@ lpfc_debugfs_commonxripools_data(struct
 			break;
 		qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool];
 
-		len +=  snprintf(buf + len, size - len, "HdwQ %d Info ", i);
+		len += scnprintf(buf + len, size - len, "HdwQ %d Info ", i);
 		spin_lock_irqsave(&qp->abts_scsi_buf_list_lock, iflag);
 		spin_lock(&qp->abts_nvme_buf_list_lock);
 		spin_lock(&qp->io_buf_list_get_lock);
 		spin_lock(&qp->io_buf_list_put_lock);
 		out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs +
 			qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs);
-		len +=  snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				 "tot:%d get:%d put:%d mt:%d "
 				 "ABTS scsi:%d nvme:%d Out:%d\n",
 			qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs,
@@ -612,9 +614,9 @@ lpfc_debugfs_lockstat_data(struct lpfc_h
 			break;
 		qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock];
 
-		len +=  snprintf(buf + len, size - len, "HdwQ %03d Lock ", i);
+		len += scnprintf(buf + len, size - len, "HdwQ %03d Lock ", i);
 		if (phba->cfg_xri_rebalancing) {
-			len +=  snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					 "get_pvt:%d mv_pvt:%d "
 					 "mv2pub:%d mv2pvt:%d "
 					 "put_pvt:%d put_pub:%d wq:%d\n",
@@ -626,7 +628,7 @@ lpfc_debugfs_lockstat_data(struct lpfc_h
 					 qp->lock_conflict.free_pub_pool,
 					 qp->lock_conflict.wq_access);
 		} else {
-			len +=  snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					 "get:%d put:%d free:%d wq:%d\n",
 					 qp->lock_conflict.alloc_xri_get,
 					 qp->lock_conflict.alloc_xri_put,
@@ -678,7 +680,7 @@ lpfc_debugfs_dumpHBASlim_data(struct lpf
 	off = 0;
 	spin_lock_irq(&phba->hbalock);
 
-	len +=  snprintf(buf+len, size-len, "HBA SLIM\n");
+	len +=  scnprintf(buf+len, size-len, "HBA SLIM\n");
 	lpfc_memcpy_from_slim(buffer,
 		phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
 
@@ -692,7 +694,7 @@ lpfc_debugfs_dumpHBASlim_data(struct lpf
 
 	i = 1024;
 	while (i > 0) {
-		len +=  snprintf(buf+len, size-len,
+		len +=  scnprintf(buf+len, size-len,
 		"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
 		off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
 		*(ptr+5), *(ptr+6), *(ptr+7));
@@ -736,11 +738,11 @@ lpfc_debugfs_dumpHostSlim_data(struct lp
 	off = 0;
 	spin_lock_irq(&phba->hbalock);
 
-	len +=  snprintf(buf+len, size-len, "SLIM Mailbox\n");
+	len +=  scnprintf(buf+len, size-len, "SLIM Mailbox\n");
 	ptr = (uint32_t *)phba->slim2p.virt;
 	i = sizeof(MAILBOX_t);
 	while (i > 0) {
-		len +=  snprintf(buf+len, size-len,
+		len +=  scnprintf(buf+len, size-len,
 		"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
 		off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
 		*(ptr+5), *(ptr+6), *(ptr+7));
@@ -749,11 +751,11 @@ lpfc_debugfs_dumpHostSlim_data(struct lp
 		off += (8 * sizeof(uint32_t));
 	}
 
-	len +=  snprintf(buf+len, size-len, "SLIM PCB\n");
+	len +=  scnprintf(buf+len, size-len, "SLIM PCB\n");
 	ptr = (uint32_t *)phba->pcb;
 	i = sizeof(PCB_t);
 	while (i > 0) {
-		len +=  snprintf(buf+len, size-len,
+		len +=  scnprintf(buf+len, size-len,
 		"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
 		off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
 		*(ptr+5), *(ptr+6), *(ptr+7));
@@ -766,7 +768,7 @@ lpfc_debugfs_dumpHostSlim_data(struct lp
 		for (i = 0; i < 4; i++) {
 			pgpp = &phba->port_gp[i];
 			pring = &psli->sli3_ring[i];
-			len +=  snprintf(buf+len, size-len,
+			len +=  scnprintf(buf+len, size-len,
 					 "Ring %d: CMD GetInx:%d "
 					 "(Max:%d Next:%d "
 					 "Local:%d flg:x%x)  "
@@ -783,7 +785,7 @@ lpfc_debugfs_dumpHostSlim_data(struct lp
 		word1 = readl(phba->CAregaddr);
 		word2 = readl(phba->HSregaddr);
 		word3 = readl(phba->HCregaddr);
-		len +=  snprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
+		len +=  scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
 				 "HC:%08x\n", word0, word1, word2, word3);
 	}
 	spin_unlock_irq(&phba->hbalock);
@@ -821,12 +823,12 @@ lpfc_debugfs_nodelist_data(struct lpfc_v
 	cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
 	outio = 0;
 
-	len += snprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
+	len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
 	spin_lock_irq(shost->host_lock);
 	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
 		iocnt = 0;
 		if (!cnt) {
-			len +=  snprintf(buf+len, size-len,
+			len +=  scnprintf(buf+len, size-len,
 				"Missing Nodelist Entries\n");
 			break;
 		}
@@ -864,63 +866,63 @@ lpfc_debugfs_nodelist_data(struct lpfc_v
 		default:
 			statep = "UNKNOWN";
 		}
-		len += snprintf(buf+len, size-len, "%s DID:x%06x ",
+		len += scnprintf(buf+len, size-len, "%s DID:x%06x ",
 				statep, ndlp->nlp_DID);
-		len += snprintf(buf+len, size-len,
+		len += scnprintf(buf+len, size-len,
 				"WWPN x%llx ",
 				wwn_to_u64(ndlp->nlp_portname.u.wwn));
-		len += snprintf(buf+len, size-len,
+		len += scnprintf(buf+len, size-len,
 				"WWNN x%llx ",
 				wwn_to_u64(ndlp->nlp_nodename.u.wwn));
 		if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
-			len += snprintf(buf+len, size-len, "RPI:%03d ",
+			len += scnprintf(buf+len, size-len, "RPI:%03d ",
 					ndlp->nlp_rpi);
 		else
-			len += snprintf(buf+len, size-len, "RPI:none ");
-		len +=  snprintf(buf+len, size-len, "flag:x%08x ",
+			len += scnprintf(buf+len, size-len, "RPI:none ");
+		len +=  scnprintf(buf+len, size-len, "flag:x%08x ",
 			ndlp->nlp_flag);
 		if (!ndlp->nlp_type)
-			len += snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
+			len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE ");
 		if (ndlp->nlp_type & NLP_FC_NODE)
-			len += snprintf(buf+len, size-len, "FC_NODE ");
+			len += scnprintf(buf+len, size-len, "FC_NODE ");
 		if (ndlp->nlp_type & NLP_FABRIC) {
-			len += snprintf(buf+len, size-len, "FABRIC ");
+			len += scnprintf(buf+len, size-len, "FABRIC ");
 			iocnt = 0;
 		}
 		if (ndlp->nlp_type & NLP_FCP_TARGET)
-			len += snprintf(buf+len, size-len, "FCP_TGT sid:%d ",
+			len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ",
 				ndlp->nlp_sid);
 		if (ndlp->nlp_type & NLP_FCP_INITIATOR)
-			len += snprintf(buf+len, size-len, "FCP_INITIATOR ");
+			len += scnprintf(buf+len, size-len, "FCP_INITIATOR ");
 		if (ndlp->nlp_type & NLP_NVME_TARGET)
-			len += snprintf(buf + len,
+			len += scnprintf(buf + len,
 					size - len, "NVME_TGT sid:%d ",
 					NLP_NO_SID);
 		if (ndlp->nlp_type & NLP_NVME_INITIATOR)
-			len += snprintf(buf + len,
+			len += scnprintf(buf + len,
 					size - len, "NVME_INITIATOR ");
-		len += snprintf(buf+len, size-len, "usgmap:%x ",
+		len += scnprintf(buf+len, size-len, "usgmap:%x ",
 			ndlp->nlp_usg_map);
-		len += snprintf(buf+len, size-len, "refcnt:%x",
+		len += scnprintf(buf+len, size-len, "refcnt:%x",
 			kref_read(&ndlp->kref));
 		if (iocnt) {
 			i = atomic_read(&ndlp->cmd_pending);
-			len += snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					" OutIO:x%x Qdepth x%x",
 					i, ndlp->cmd_qdepth);
 			outio += i;
 		}
-		len += snprintf(buf + len, size - len, "defer:%x ",
+		len += scnprintf(buf + len, size - len, "defer:%x ",
 			ndlp->nlp_defer_did);
-		len +=  snprintf(buf+len, size-len, "\n");
+		len +=  scnprintf(buf+len, size-len, "\n");
 	}
 	spin_unlock_irq(shost->host_lock);
 
-	len += snprintf(buf + len, size - len,
+	len += scnprintf(buf + len, size - len,
 			"\nOutstanding IO x%x\n",  outio);
 
 	if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) {
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"\nNVME Targetport Entry ...\n");
 
 		/* Port state is only one of two values for now. */
@@ -928,18 +930,18 @@ lpfc_debugfs_nodelist_data(struct lpfc_v
 			statep = "REGISTERED";
 		else
 			statep = "INIT";
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"TGT WWNN x%llx WWPN x%llx State %s\n",
 				wwn_to_u64(vport->fc_nodename.u.wwn),
 				wwn_to_u64(vport->fc_portname.u.wwn),
 				statep);
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"    Targetport DID x%06x\n",
 				phba->targetport->port_id);
 		goto out_exit;
 	}
 
-	len += snprintf(buf + len, size - len,
+	len += scnprintf(buf + len, size - len,
 				"\nNVME Lport/Rport Entries ...\n");
 
 	localport = vport->localport;
@@ -954,11 +956,11 @@ lpfc_debugfs_nodelist_data(struct lpfc_v
 	else
 		statep = "UNKNOWN ";
 
-	len += snprintf(buf + len, size - len,
+	len += scnprintf(buf + len, size - len,
 			"Lport DID x%06x PortState %s\n",
 			localport->port_id, statep);
 
-	len += snprintf(buf + len, size - len, "\tRport List:\n");
+	len += scnprintf(buf + len, size - len, "\tRport List:\n");
 	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
 		/* local short-hand pointer. */
 		spin_lock(&phba->hbalock);
@@ -985,32 +987,32 @@ lpfc_debugfs_nodelist_data(struct lpfc_v
 		}
 
 		/* Tab in to show lport ownership. */
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"\t%s Port ID:x%06x ",
 				statep, nrport->port_id);
-		len += snprintf(buf + len, size - len, "WWPN x%llx ",
+		len += scnprintf(buf + len, size - len, "WWPN x%llx ",
 				nrport->port_name);
-		len += snprintf(buf + len, size - len, "WWNN x%llx ",
+		len += scnprintf(buf + len, size - len, "WWNN x%llx ",
 				nrport->node_name);
 
 		/* An NVME rport can have multiple roles. */
 		if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR)
-			len +=  snprintf(buf + len, size - len,
+			len +=  scnprintf(buf + len, size - len,
 					 "INITIATOR ");
 		if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET)
-			len +=  snprintf(buf + len, size - len,
+			len +=  scnprintf(buf + len, size - len,
 					 "TARGET ");
 		if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY)
-			len +=  snprintf(buf + len, size - len,
+			len +=  scnprintf(buf + len, size - len,
 					 "DISCSRVC ");
 		if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
 					  FC_PORT_ROLE_NVME_TARGET |
 					  FC_PORT_ROLE_NVME_DISCOVERY))
-			len +=  snprintf(buf + len, size - len,
+			len +=  scnprintf(buf + len, size - len,
 					 "UNKNOWN ROLE x%x",
 					 nrport->port_role);
 		/* Terminate the string. */
-		len +=  snprintf(buf + len, size - len, "\n");
+		len +=  scnprintf(buf + len, size - len, "\n");
 	}
 
 	spin_unlock_irq(shost->host_lock);
@@ -1049,35 +1051,35 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 		if (!phba->targetport)
 			return len;
 		tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"\nNVME Targetport Statistics\n");
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"LS: Rcv %08x Drop %08x Abort %08x\n",
 				atomic_read(&tgtp->rcv_ls_req_in),
 				atomic_read(&tgtp->rcv_ls_req_drop),
 				atomic_read(&tgtp->xmt_ls_abort));
 		if (atomic_read(&tgtp->rcv_ls_req_in) !=
 		    atomic_read(&tgtp->rcv_ls_req_out)) {
-			len += snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					"Rcv LS: in %08x != out %08x\n",
 					atomic_read(&tgtp->rcv_ls_req_in),
 					atomic_read(&tgtp->rcv_ls_req_out));
 		}
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"LS: Xmt %08x Drop %08x Cmpl %08x\n",
 				atomic_read(&tgtp->xmt_ls_rsp),
 				atomic_read(&tgtp->xmt_ls_drop),
 				atomic_read(&tgtp->xmt_ls_rsp_cmpl));
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"LS: RSP Abort %08x xb %08x Err %08x\n",
 				atomic_read(&tgtp->xmt_ls_rsp_aborted),
 				atomic_read(&tgtp->xmt_ls_rsp_xb_set),
 				atomic_read(&tgtp->xmt_ls_rsp_error));
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"FCP: Rcv %08x Defer %08x Release %08x "
 				"Drop %08x\n",
 				atomic_read(&tgtp->rcv_fcp_cmd_in),
@@ -1087,13 +1089,13 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 
 		if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
 		    atomic_read(&tgtp->rcv_fcp_cmd_out)) {
-			len += snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					"Rcv FCP: in %08x != out %08x\n",
 					atomic_read(&tgtp->rcv_fcp_cmd_in),
 					atomic_read(&tgtp->rcv_fcp_cmd_out));
 		}
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"FCP Rsp: read %08x readrsp %08x "
 				"write %08x rsp %08x\n",
 				atomic_read(&tgtp->xmt_fcp_read),
@@ -1101,31 +1103,31 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 				atomic_read(&tgtp->xmt_fcp_write),
 				atomic_read(&tgtp->xmt_fcp_rsp));
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"FCP Rsp Cmpl: %08x err %08x drop %08x\n",
 				atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
 				atomic_read(&tgtp->xmt_fcp_rsp_error),
 				atomic_read(&tgtp->xmt_fcp_rsp_drop));
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"FCP Rsp Abort: %08x xb %08x xricqe  %08x\n",
 				atomic_read(&tgtp->xmt_fcp_rsp_aborted),
 				atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
 				atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"ABORT: Xmt %08x Cmpl %08x\n",
 				atomic_read(&tgtp->xmt_fcp_abort),
 				atomic_read(&tgtp->xmt_fcp_abort_cmpl));
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"ABORT: Sol %08x  Usol %08x Err %08x Cmpl %08x",
 				atomic_read(&tgtp->xmt_abort_sol),
 				atomic_read(&tgtp->xmt_abort_unsol),
 				atomic_read(&tgtp->xmt_abort_rsp),
 				atomic_read(&tgtp->xmt_abort_rsp_error));
 
-		len +=  snprintf(buf + len, size - len, "\n");
+		len +=  scnprintf(buf + len, size - len, "\n");
 
 		cnt = 0;
 		spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
@@ -1136,7 +1138,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 		}
 		spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
 		if (cnt) {
-			len += snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					"ABORT: %d ctx entries\n", cnt);
 			spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
 			list_for_each_entry_safe(ctxp, next_ctxp,
@@ -1144,7 +1146,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 				    list) {
 				if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ))
 					break;
-				len += snprintf(buf + len, size - len,
+				len += scnprintf(buf + len, size - len,
 						"Entry: oxid %x state %x "
 						"flag %x\n",
 						ctxp->oxid, ctxp->state,
@@ -1158,7 +1160,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 		tot += atomic_read(&tgtp->xmt_fcp_release);
 		tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"IO_CTX: %08x  WAIT: cur %08x tot %08x\n"
 				"CTX Outstanding %08llx\n",
 				phba->sli4_hba.nvmet_xri_cnt,
@@ -1176,10 +1178,10 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 		if (!lport)
 			return len;
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"\nNVME HDWQ Statistics\n");
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"LS: Xmt %016x Cmpl %016x\n",
 				atomic_read(&lport->fc4NvmeLsRequests),
 				atomic_read(&lport->fc4NvmeLsCmpls));
@@ -1199,20 +1201,20 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 			if (i >= 32)
 				continue;
 
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 					"HDWQ (%d): Rd %016llx Wr %016llx "
 					"IO %016llx ",
 					i, data1, data2, data3);
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 					"Cmpl %016llx OutIO %016llx\n",
 					tot, ((data1 + data2 + data3) - tot));
 		}
-		len += snprintf(buf + len, PAGE_SIZE - len,
+		len += scnprintf(buf + len, PAGE_SIZE - len,
 				"Total FCP Cmpl %016llx Issue %016llx "
 				"OutIO %016llx\n",
 				totin, totout, totout - totin);
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"LS Xmt Err: Abrt %08x Err %08x  "
 				"Cmpl Err: xb %08x Err %08x\n",
 				atomic_read(&lport->xmt_ls_abort),
@@ -1220,7 +1222,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 				atomic_read(&lport->cmpl_ls_xb),
 				atomic_read(&lport->cmpl_ls_err));
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"FCP Xmt Err: noxri %06x nondlp %06x "
 				"qdepth %06x wqerr %06x err %06x Abrt %06x\n",
 				atomic_read(&lport->xmt_fcp_noxri),
@@ -1230,7 +1232,7 @@ lpfc_debugfs_nvmestat_data(struct lpfc_v
 				atomic_read(&lport->xmt_fcp_err),
 				atomic_read(&lport->xmt_fcp_abort));
 
-		len += snprintf(buf + len, size - len,
+		len += scnprintf(buf + len, size - len,
 				"FCP Cmpl Err: xb %08x Err %08x\n",
 				atomic_read(&lport->cmpl_fcp_xb),
 				atomic_read(&lport->cmpl_fcp_err));
@@ -1322,58 +1324,58 @@ lpfc_debugfs_nvmektime_data(struct lpfc_
 
 	if (phba->nvmet_support == 0) {
 		/* NVME Initiator */
-		len += snprintf(buf + len, PAGE_SIZE - len,
+		len += scnprintf(buf + len, PAGE_SIZE - len,
 				"ktime %s: Total Samples: %lld\n",
 				(phba->ktime_on ?  "Enabled" : "Disabled"),
 				phba->ktime_data_samples);
 		if (phba->ktime_data_samples == 0)
 			return len;
 
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"Segment 1: Last NVME Cmd cmpl "
 			"done -to- Start of next NVME cnd (in driver)\n");
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg1_total,
 				phba->ktime_data_samples),
 			phba->ktime_seg1_min,
 			phba->ktime_seg1_max);
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"Segment 2: Driver start of NVME cmd "
 			"-to- Firmware WQ doorbell\n");
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg2_total,
 				phba->ktime_data_samples),
 			phba->ktime_seg2_min,
 			phba->ktime_seg2_max);
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"Segment 3: Firmware WQ doorbell -to- "
 			"MSI-X ISR cmpl\n");
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg3_total,
 				phba->ktime_data_samples),
 			phba->ktime_seg3_min,
 			phba->ktime_seg3_max);
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"Segment 4: MSI-X ISR cmpl -to- "
 			"NVME cmpl done\n");
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg4_total,
 				phba->ktime_data_samples),
 			phba->ktime_seg4_min,
 			phba->ktime_seg4_max);
-		len += snprintf(
+		len += scnprintf(
 			buf + len, PAGE_SIZE - len,
 			"Total IO avg time: %08lld\n",
 			div_u64(phba->ktime_seg1_total +
@@ -1385,7 +1387,7 @@ lpfc_debugfs_nvmektime_data(struct lpfc_
 	}
 
 	/* NVME Target */
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"ktime %s: Total Samples: %lld %lld\n",
 			(phba->ktime_on ? "Enabled" : "Disabled"),
 			phba->ktime_data_samples,
@@ -1393,46 +1395,46 @@ lpfc_debugfs_nvmektime_data(struct lpfc_
 	if (phba->ktime_data_samples == 0)
 		return len;
 
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 1: MSI-X ISR Rcv cmd -to- "
 			"cmd pass to NVME Layer\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg1_total,
 				phba->ktime_data_samples),
 			phba->ktime_seg1_min,
 			phba->ktime_seg1_max);
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 2: cmd pass to NVME Layer- "
 			"-to- Driver rcv cmd OP (action)\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg2_total,
 				phba->ktime_data_samples),
 			phba->ktime_seg2_min,
 			phba->ktime_seg2_max);
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 3: Driver rcv cmd OP -to- "
 			"Firmware WQ doorbell: cmd\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg3_total,
 				phba->ktime_data_samples),
 			phba->ktime_seg3_min,
 			phba->ktime_seg3_max);
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 4: Firmware WQ doorbell: cmd "
 			"-to- MSI-X ISR for cmd cmpl\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg4_total,
 				phba->ktime_data_samples),
 			phba->ktime_seg4_min,
 			phba->ktime_seg4_max);
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 5: MSI-X ISR for cmd cmpl "
 			"-to- NVME layer passed cmd done\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg5_total,
 				phba->ktime_data_samples),
@@ -1440,10 +1442,10 @@ lpfc_debugfs_nvmektime_data(struct lpfc_
 			phba->ktime_seg5_max);
 
 	if (phba->ktime_status_samples == 0) {
-		len += snprintf(buf + len, PAGE_SIZE-len,
+		len += scnprintf(buf + len, PAGE_SIZE-len,
 				"Total: cmd received by MSI-X ISR "
 				"-to- cmd completed on wire\n");
-		len += snprintf(buf + len, PAGE_SIZE-len,
+		len += scnprintf(buf + len, PAGE_SIZE-len,
 				"avg:%08lld min:%08lld "
 				"max %08lld\n",
 				div_u64(phba->ktime_seg10_total,
@@ -1453,46 +1455,46 @@ lpfc_debugfs_nvmektime_data(struct lpfc_
 		return len;
 	}
 
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 6: NVME layer passed cmd done "
 			"-to- Driver rcv rsp status OP\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg6_total,
 				phba->ktime_status_samples),
 			phba->ktime_seg6_min,
 			phba->ktime_seg6_max);
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 7: Driver rcv rsp status OP "
 			"-to- Firmware WQ doorbell: status\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg7_total,
 				phba->ktime_status_samples),
 			phba->ktime_seg7_min,
 			phba->ktime_seg7_max);
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 8: Firmware WQ doorbell: status"
 			" -to- MSI-X ISR for status cmpl\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg8_total,
 				phba->ktime_status_samples),
 			phba->ktime_seg8_min,
 			phba->ktime_seg8_max);
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Segment 9: MSI-X ISR for status cmpl  "
 			"-to- NVME layer passed status done\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg9_total,
 				phba->ktime_status_samples),
 			phba->ktime_seg9_min,
 			phba->ktime_seg9_max);
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"Total: cmd received by MSI-X ISR -to- "
 			"cmd completed on wire\n");
-	len += snprintf(buf + len, PAGE_SIZE-len,
+	len += scnprintf(buf + len, PAGE_SIZE-len,
 			"avg:%08lld min:%08lld max %08lld\n",
 			div_u64(phba->ktime_seg10_total,
 				phba->ktime_status_samples),
@@ -1527,7 +1529,7 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc
 		(phba->nvmeio_trc_size - 1);
 	skip = phba->nvmeio_trc_output_idx;
 
-	len += snprintf(buf + len, size - len,
+	len += scnprintf(buf + len, size - len,
 			"%s IO Trace %s: next_idx %d skip %d size %d\n",
 			(phba->nvmet_support ? "NVME" : "NVMET"),
 			(state ? "Enabled" : "Disabled"),
@@ -1549,18 +1551,18 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc
 		if (!dtp->fmt)
 			continue;
 
-		len +=  snprintf(buf + len, size - len, dtp->fmt,
+		len +=  scnprintf(buf + len, size - len, dtp->fmt,
 			dtp->data1, dtp->data2, dtp->data3);
 
 		if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
 			phba->nvmeio_trc_output_idx = 0;
-			len += snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					"Trace Complete\n");
 			goto out;
 		}
 
 		if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
-			len += snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					"Trace Continue (%d of %d)\n",
 					phba->nvmeio_trc_output_idx,
 					phba->nvmeio_trc_size);
@@ -1578,18 +1580,18 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc
 		if (!dtp->fmt)
 			continue;
 
-		len +=  snprintf(buf + len, size - len, dtp->fmt,
+		len +=  scnprintf(buf + len, size - len, dtp->fmt,
 			dtp->data1, dtp->data2, dtp->data3);
 
 		if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
 			phba->nvmeio_trc_output_idx = 0;
-			len += snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					"Trace Complete\n");
 			goto out;
 		}
 
 		if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
-			len += snprintf(buf + len, size - len,
+			len += scnprintf(buf + len, size - len,
 					"Trace Continue (%d of %d)\n",
 					phba->nvmeio_trc_output_idx,
 					phba->nvmeio_trc_size);
@@ -1597,7 +1599,7 @@ lpfc_debugfs_nvmeio_trc_data(struct lpfc
 		}
 	}
 
-	len += snprintf(buf + len, size - len,
+	len += scnprintf(buf + len, size - len,
 			"Trace Done\n");
 out:
 	return len;
@@ -1627,17 +1629,17 @@ lpfc_debugfs_cpucheck_data(struct lpfc_v
 	uint32_t tot_rcv;
 	uint32_t tot_cmpl;
 
-	len += snprintf(buf + len, PAGE_SIZE - len,
+	len += scnprintf(buf + len, PAGE_SIZE - len,
 			"CPUcheck %s ",
 			(phba->cpucheck_on & LPFC_CHECK_NVME_IO ?
 				"Enabled" : "Disabled"));
 	if (phba->nvmet_support) {
-		len += snprintf(buf + len, PAGE_SIZE - len,
+		len += scnprintf(buf + len, PAGE_SIZE - len,
 				"%s\n",
 				(phba->cpucheck_on & LPFC_CHECK_NVMET_RCV ?
 					"Rcv Enabled\n" : "Rcv Disabled\n"));
 	} else {
-		len += snprintf(buf + len, PAGE_SIZE - len, "\n");
+		len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
 	}
 	max_cnt = size - LPFC_DEBUG_OUT_LINE_SZ;
 
@@ -1658,7 +1660,7 @@ lpfc_debugfs_cpucheck_data(struct lpfc_v
 		if (!tot_xmt && !tot_cmpl && !tot_rcv)
 			continue;
 
-		len += snprintf(buf + len, PAGE_SIZE - len,
+		len += scnprintf(buf + len, PAGE_SIZE - len,
 				"HDWQ %03d: ", i);
 		for (j = 0; j < LPFC_CHECK_CPU_CNT; j++) {
 			/* Only display non-zero counters */
@@ -1667,22 +1669,22 @@ lpfc_debugfs_cpucheck_data(struct lpfc_v
 			    !qp->cpucheck_rcv_io[j])
 				continue;
 			if (phba->nvmet_support) {
-				len += snprintf(buf + len, PAGE_SIZE - len,
+				len += scnprintf(buf + len, PAGE_SIZE - len,
 						"CPU %03d: %x/%x/%x ", j,
 						qp->cpucheck_rcv_io[j],
 						qp->cpucheck_xmt_io[j],
 						qp->cpucheck_cmpl_io[j]);
 			} else {
-				len += snprintf(buf + len, PAGE_SIZE - len,
+				len += scnprintf(buf + len, PAGE_SIZE - len,
 						"CPU %03d: %x/%x ", j,
 						qp->cpucheck_xmt_io[j],
 						qp->cpucheck_cmpl_io[j]);
 			}
 		}
-		len += snprintf(buf + len, PAGE_SIZE - len,
+		len += scnprintf(buf + len, PAGE_SIZE - len,
 				"Total: %x\n", tot_xmt);
 		if (len >= max_cnt) {
-			len += snprintf(buf + len, PAGE_SIZE - len,
+			len += scnprintf(buf + len, PAGE_SIZE - len,
 					"Truncated ...\n");
 			return len;
 		}
@@ -2258,28 +2260,29 @@ lpfc_debugfs_dif_err_read(struct file *f
 	int cnt = 0;
 
 	if (dent == phba->debug_writeGuard)
-		cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
 	else if (dent == phba->debug_writeApp)
-		cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
 	else if (dent == phba->debug_writeRef)
-		cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
 	else if (dent == phba->debug_readGuard)
-		cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
 	else if (dent == phba->debug_readApp)
-		cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
 	else if (dent == phba->debug_readRef)
-		cnt = snprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
 	else if (dent == phba->debug_InjErrNPortID)
-		cnt = snprintf(cbuf, 32, "0x%06x\n", phba->lpfc_injerr_nportid);
+		cnt = scnprintf(cbuf, 32, "0x%06x\n",
+				phba->lpfc_injerr_nportid);
 	else if (dent == phba->debug_InjErrWWPN) {
 		memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
 		tmp = cpu_to_be64(tmp);
-		cnt = snprintf(cbuf, 32, "0x%016llx\n", tmp);
+		cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp);
 	} else if (dent == phba->debug_InjErrLBA) {
 		if (phba->lpfc_injerr_lba == (sector_t)(-1))
-			cnt = snprintf(cbuf, 32, "off\n");
+			cnt = scnprintf(cbuf, 32, "off\n");
 		else
-			cnt = snprintf(cbuf, 32, "0x%llx\n",
+			cnt = scnprintf(cbuf, 32, "0x%llx\n",
 				 (uint64_t) phba->lpfc_injerr_lba);
 	} else
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -3224,17 +3227,17 @@ lpfc_idiag_pcicfg_read(struct file *file
 	switch (count) {
 	case SIZE_U8: /* byte (8 bits) */
 		pci_read_config_byte(pdev, where, &u8val);
-		len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
 				"%03x: %02x\n", where, u8val);
 		break;
 	case SIZE_U16: /* word (16 bits) */
 		pci_read_config_word(pdev, where, &u16val);
-		len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
 				"%03x: %04x\n", where, u16val);
 		break;
 	case SIZE_U32: /* double word (32 bits) */
 		pci_read_config_dword(pdev, where, &u32val);
-		len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
 				"%03x: %08x\n", where, u32val);
 		break;
 	case LPFC_PCI_CFG_BROWSE: /* browse all */
@@ -3254,25 +3257,25 @@ pcicfg_browse:
 	offset = offset_label;
 
 	/* Read PCI config space */
-	len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
 			"%03x: ", offset_label);
 	while (index > 0) {
 		pci_read_config_dword(pdev, offset, &u32val);
-		len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
 				"%08x ", u32val);
 		offset += sizeof(uint32_t);
 		if (offset >= LPFC_PCI_CFG_SIZE) {
-			len += snprintf(pbuffer+len,
+			len += scnprintf(pbuffer+len,
 					LPFC_PCI_CFG_SIZE-len, "\n");
 			break;
 		}
 		index -= sizeof(uint32_t);
 		if (!index)
-			len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+			len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
 					"\n");
 		else if (!(index % (8 * sizeof(uint32_t)))) {
 			offset_label += (8 * sizeof(uint32_t));
-			len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+			len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
 					"\n%03x: ", offset_label);
 		}
 	}
@@ -3543,7 +3546,7 @@ lpfc_idiag_baracc_read(struct file *file
 	if (acc_range == SINGLE_WORD) {
 		offset_run = offset;
 		u32val = readl(mem_mapped_bar + offset_run);
-		len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
 				"%05x: %08x\n", offset_run, u32val);
 	} else
 		goto baracc_browse;
@@ -3557,35 +3560,35 @@ baracc_browse:
 	offset_run = offset_label;
 
 	/* Read PCI bar memory mapped space */
-	len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
 			"%05x: ", offset_label);
 	index = LPFC_PCI_BAR_RD_SIZE;
 	while (index > 0) {
 		u32val = readl(mem_mapped_bar + offset_run);
-		len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
 				"%08x ", u32val);
 		offset_run += sizeof(uint32_t);
 		if (acc_range == LPFC_PCI_BAR_BROWSE) {
 			if (offset_run >= bar_size) {
-				len += snprintf(pbuffer+len,
+				len += scnprintf(pbuffer+len,
 					LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
 				break;
 			}
 		} else {
 			if (offset_run >= offset +
 			    (acc_range * sizeof(uint32_t))) {
-				len += snprintf(pbuffer+len,
+				len += scnprintf(pbuffer+len,
 					LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
 				break;
 			}
 		}
 		index -= sizeof(uint32_t);
 		if (!index)
-			len += snprintf(pbuffer+len,
+			len += scnprintf(pbuffer+len,
 					LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
 		else if (!(index % (8 * sizeof(uint32_t)))) {
 			offset_label += (8 * sizeof(uint32_t));
-			len += snprintf(pbuffer+len,
+			len += scnprintf(pbuffer+len,
 					LPFC_PCI_BAR_RD_BUF_SIZE-len,
 					"\n%05x: ", offset_label);
 		}
@@ -3758,19 +3761,19 @@ __lpfc_idiag_print_wq(struct lpfc_queue
 	if (!qp)
 		return len;
 
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\t\t%s WQ info: ", wqtype);
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n",
 			qp->assoc_qid, qp->q_cnt_1,
 			(unsigned long long)qp->q_cnt_4);
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
 			"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]",
 			qp->queue_id, qp->entry_count,
 			qp->entry_size, qp->host_index,
 			qp->hba_index, qp->notify_interval);
-	len +=  snprintf(pbuffer + len,
+	len +=  scnprintf(pbuffer + len,
 			LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
 	return len;
 }
@@ -3810,21 +3813,22 @@ __lpfc_idiag_print_cq(struct lpfc_queue
 	if (!qp)
 		return len;
 
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\t%s CQ info: ", cqtype);
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x "
 			"xabt:x%x wq:x%llx]\n",
 			qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
 			qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
 			"HST-IDX[%04d], NTFI[%03d], PLMT[%03d]",
 			qp->queue_id, qp->entry_count,
 			qp->entry_size, qp->host_index,
 			qp->notify_interval, qp->max_proc_limit);
 
-	len +=  snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
+	len +=  scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\n");
 
 	return len;
 }
@@ -3836,19 +3840,19 @@ __lpfc_idiag_print_rqpair(struct lpfc_qu
 	if (!qp || !datqp)
 		return len;
 
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\t\t%s RQ info: ", rqtype);
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x "
 			"posted:x%x rcv:x%llx]\n",
 			qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
 			qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
 			"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n",
 			qp->queue_id, qp->entry_count, qp->entry_size,
 			qp->host_index, qp->hba_index, qp->notify_interval);
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
 			"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n",
 			datqp->queue_id, datqp->entry_count,
@@ -3927,18 +3931,19 @@ __lpfc_idiag_print_eq(struct lpfc_queue
 	if (!qp)
 		return len;
 
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\n%s EQ info: EQ-STAT[max:x%x noE:x%x "
 			"cqe_proc:x%x eqe_proc:x%llx eqd %d]\n",
 			eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3,
 			(unsigned long long)qp->q_cnt_4, qp->q_mode);
-	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
 			"HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]",
 			qp->queue_id, qp->entry_count, qp->entry_size,
 			qp->host_index, qp->notify_interval,
 			qp->max_proc_limit, qp->chann);
-	len +=  snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
+	len +=  scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\n");
 
 	return len;
 }
@@ -3991,9 +3996,10 @@ lpfc_idiag_queinfo_read(struct file *fil
 		if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue)
 			phba->lpfc_idiag_last_eq = 0;
 
-		len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
-					"HDWQ %d out of %d HBA HDWQs\n",
-					x, phba->cfg_hdw_queue);
+		len += scnprintf(pbuffer + len,
+				 LPFC_QUE_INFO_GET_BUF_SIZE - len,
+				 "HDWQ %d out of %d HBA HDWQs\n",
+				 x, phba->cfg_hdw_queue);
 
 		/* Fast-path EQ */
 		qp = phba->sli4_hba.hdwq[x].hba_eq;
@@ -4075,7 +4081,7 @@ lpfc_idiag_queinfo_read(struct file *fil
 	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
 
 too_big:
-	len +=  snprintf(pbuffer + len,
+	len +=  scnprintf(pbuffer + len,
 		LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n");
 out:
 	spin_unlock_irq(&phba->hbalock);
@@ -4131,22 +4137,22 @@ lpfc_idiag_queacc_read_qe(char *pbuffer,
 		return 0;
 
 	esize = pque->entry_size;
-	len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
 			"QE-INDEX[%04d]:\n", index);
 
 	offset = 0;
 	pentry = pque->qe[index].address;
 	while (esize > 0) {
-		len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
 				"%08x ", *pentry);
 		pentry++;
 		offset += sizeof(uint32_t);
 		esize -= sizeof(uint32_t);
 		if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
-			len += snprintf(pbuffer+len,
+			len += scnprintf(pbuffer+len,
 					LPFC_QUE_ACC_BUF_SIZE-len, "\n");
 	}
-	len += snprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
+	len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
 
 	return len;
 }
@@ -4526,27 +4532,27 @@ lpfc_idiag_drbacc_read_reg(struct lpfc_h
 
 	switch (drbregid) {
 	case LPFC_DRB_EQ:
-		len += snprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len,
 				"EQ-DRB-REG: 0x%08x\n",
 				readl(phba->sli4_hba.EQDBregaddr));
 		break;
 	case LPFC_DRB_CQ:
-		len += snprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len,
+		len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len,
 				"CQ-DRB-REG: 0x%08x\n",
 				readl(phba->sli4_hba.CQDBregaddr));
 		break;
 	case LPFC_DRB_MQ:
-		len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
 				"MQ-DRB-REG:   0x%08x\n",
 				readl(phba->sli4_hba.MQDBregaddr));
 		break;
 	case LPFC_DRB_WQ:
-		len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
 				"WQ-DRB-REG:   0x%08x\n",
 				readl(phba->sli4_hba.WQDBregaddr));
 		break;
 	case LPFC_DRB_RQ:
-		len += snprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
 				"RQ-DRB-REG:   0x%08x\n",
 				readl(phba->sli4_hba.RQDBregaddr));
 		break;
@@ -4736,37 +4742,37 @@ lpfc_idiag_ctlacc_read_reg(struct lpfc_h
 
 	switch (ctlregid) {
 	case LPFC_CTL_PORT_SEM:
-		len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
 				"Port SemReg:   0x%08x\n",
 				readl(phba->sli4_hba.conf_regs_memmap_p +
 				      LPFC_CTL_PORT_SEM_OFFSET));
 		break;
 	case LPFC_CTL_PORT_STA:
-		len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
 				"Port StaReg:   0x%08x\n",
 				readl(phba->sli4_hba.conf_regs_memmap_p +
 				      LPFC_CTL_PORT_STA_OFFSET));
 		break;
 	case LPFC_CTL_PORT_CTL:
-		len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
 				"Port CtlReg:   0x%08x\n",
 				readl(phba->sli4_hba.conf_regs_memmap_p +
 				      LPFC_CTL_PORT_CTL_OFFSET));
 		break;
 	case LPFC_CTL_PORT_ER1:
-		len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
 				"Port Er1Reg:   0x%08x\n",
 				readl(phba->sli4_hba.conf_regs_memmap_p +
 				      LPFC_CTL_PORT_ER1_OFFSET));
 		break;
 	case LPFC_CTL_PORT_ER2:
-		len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
 				"Port Er2Reg:   0x%08x\n",
 				readl(phba->sli4_hba.conf_regs_memmap_p +
 				      LPFC_CTL_PORT_ER2_OFFSET));
 		break;
 	case LPFC_CTL_PDEV_CTL:
-		len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
 				"PDev CtlReg:   0x%08x\n",
 				readl(phba->sli4_hba.conf_regs_memmap_p +
 				      LPFC_CTL_PDEV_CTL_OFFSET));
@@ -4959,13 +4965,13 @@ lpfc_idiag_mbxacc_get_setup(struct lpfc_
 	mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
 	mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
 
-	len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
 			"mbx_dump_map: 0x%08x\n", mbx_dump_map);
-	len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
 			"mbx_dump_cnt: %04d\n", mbx_dump_cnt);
-	len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
 			"mbx_word_cnt: %04d\n", mbx_word_cnt);
-	len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
 			"mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
 
 	return len;
@@ -5114,35 +5120,35 @@ lpfc_idiag_extacc_avail_get(struct lpfc_
 {
 	uint16_t ext_cnt, ext_size;
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\nAvailable Extents Information:\n");
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tPort Available VPI extents: ");
 	lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
 				       &ext_cnt, &ext_size);
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"Count %3d, Size %3d\n", ext_cnt, ext_size);
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tPort Available VFI extents: ");
 	lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
 				       &ext_cnt, &ext_size);
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"Count %3d, Size %3d\n", ext_cnt, ext_size);
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tPort Available RPI extents: ");
 	lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
 				       &ext_cnt, &ext_size);
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"Count %3d, Size %3d\n", ext_cnt, ext_size);
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tPort Available XRI extents: ");
 	lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
 				       &ext_cnt, &ext_size);
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"Count %3d, Size %3d\n", ext_cnt, ext_size);
 
 	return len;
@@ -5166,55 +5172,55 @@ lpfc_idiag_extacc_alloc_get(struct lpfc_
 	uint16_t ext_cnt, ext_size;
 	int rc;
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\nAllocated Extents Information:\n");
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tHost Allocated VPI extents: ");
 	rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
 					    &ext_cnt, &ext_size);
 	if (!rc)
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"Port %d Extent %3d, Size %3d\n",
 				phba->brd_no, ext_cnt, ext_size);
 	else
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"N/A\n");
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tHost Allocated VFI extents: ");
 	rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
 					    &ext_cnt, &ext_size);
 	if (!rc)
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"Port %d Extent %3d, Size %3d\n",
 				phba->brd_no, ext_cnt, ext_size);
 	else
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"N/A\n");
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tHost Allocated RPI extents: ");
 	rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
 					    &ext_cnt, &ext_size);
 	if (!rc)
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"Port %d Extent %3d, Size %3d\n",
 				phba->brd_no, ext_cnt, ext_size);
 	else
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"N/A\n");
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tHost Allocated XRI extents: ");
 	rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
 					    &ext_cnt, &ext_size);
 	if (!rc)
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"Port %d Extent %3d, Size %3d\n",
 				phba->brd_no, ext_cnt, ext_size);
 	else
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"N/A\n");
 
 	return len;
@@ -5238,49 +5244,49 @@ lpfc_idiag_extacc_drivr_get(struct lpfc_
 	struct lpfc_rsrc_blks *rsrc_blks;
 	int index;
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\nDriver Extents Information:\n");
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tVPI extents:\n");
 	index = 0;
 	list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"\t\tBlock %3d: Start %4d, Count %4d\n",
 				index, rsrc_blks->rsrc_start,
 				rsrc_blks->rsrc_size);
 		index++;
 	}
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tVFI extents:\n");
 	index = 0;
 	list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
 			    list) {
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"\t\tBlock %3d: Start %4d, Count %4d\n",
 				index, rsrc_blks->rsrc_start,
 				rsrc_blks->rsrc_size);
 		index++;
 	}
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tRPI extents:\n");
 	index = 0;
 	list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
 			    list) {
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"\t\tBlock %3d: Start %4d, Count %4d\n",
 				index, rsrc_blks->rsrc_start,
 				rsrc_blks->rsrc_size);
 		index++;
 	}
 
-	len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\tXRI extents:\n");
 	index = 0;
 	list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
 			    list) {
-		len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 				"\t\tBlock %3d: Start %4d, Count %4d\n",
 				index, rsrc_blks->rsrc_start,
 				rsrc_blks->rsrc_size);
@@ -5706,11 +5712,11 @@ lpfc_idiag_mbxacc_dump_bsg_mbox(struct l
 				if (i != 0)
 					pr_err("%s\n", line_buf);
 				len = 0;
-				len += snprintf(line_buf+len,
+				len += scnprintf(line_buf+len,
 						LPFC_MBX_ACC_LBUF_SZ-len,
 						"%03d: ", i);
 			}
-			len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
+			len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
 					"%08x ", (uint32_t)*pword);
 			pword++;
 		}
@@ -5773,11 +5779,11 @@ lpfc_idiag_mbxacc_dump_issue_mbox(struct
 					pr_err("%s\n", line_buf);
 				len = 0;
 				memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
-				len += snprintf(line_buf+len,
+				len += scnprintf(line_buf+len,
 						LPFC_MBX_ACC_LBUF_SZ-len,
 						"%03d: ", i);
 			}
-			len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
+			len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
 					"%08x ",
 					((uint32_t)*pword) & 0xffffffff);
 			pword++;
@@ -5796,18 +5802,18 @@ lpfc_idiag_mbxacc_dump_issue_mbox(struct
 					pr_err("%s\n", line_buf);
 				len = 0;
 				memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
-				len += snprintf(line_buf+len,
+				len += scnprintf(line_buf+len,
 						LPFC_MBX_ACC_LBUF_SZ-len,
 						"%03d: ", i);
 			}
 			for (j = 0; j < 4; j++) {
-				len += snprintf(line_buf+len,
+				len += scnprintf(line_buf+len,
 						LPFC_MBX_ACC_LBUF_SZ-len,
 						"%02x",
 						((uint8_t)*pbyte) & 0xff);
 				pbyte++;
 			}
-			len += snprintf(line_buf+len,
+			len += scnprintf(line_buf+len,
 					LPFC_MBX_ACC_LBUF_SZ-len, " ");
 		}
 		if ((i - 1) % 8)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_debugfs.h linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_debugfs.h
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_debugfs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_debugfs.h	2019-07-28 02:28:39.000000000 -0400
@@ -348,7 +348,7 @@ lpfc_debug_dump_qe(struct lpfc_queue *q,
 	pword = q->qe[idx].address;
 
 	len = 0;
-	len += snprintf(line_buf+len, LPFC_LBUF_SZ-len, "QE[%04d]: ", idx);
+	len += scnprintf(line_buf+len, LPFC_LBUF_SZ-len, "QE[%04d]: ", idx);
 	if (qe_word_cnt > 8)
 		printk(KERN_ERR "%s\n", line_buf);
 
@@ -359,11 +359,11 @@ lpfc_debug_dump_qe(struct lpfc_queue *q,
 			if (qe_word_cnt > 8) {
 				len = 0;
 				memset(line_buf, 0, LPFC_LBUF_SZ);
-				len += snprintf(line_buf+len, LPFC_LBUF_SZ-len,
+				len += scnprintf(line_buf+len, LPFC_LBUF_SZ-len,
 						"%03d: ", i);
 			}
 		}
-		len += snprintf(line_buf+len, LPFC_LBUF_SZ-len, "%08x ",
+		len += scnprintf(line_buf+len, LPFC_LBUF_SZ-len, "%08x ",
 				((uint32_t)*pword) & 0xffffffff);
 		pword++;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_els.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_els.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_els.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_els.c	2019-07-28 02:28:39.000000000 -0400
@@ -7338,7 +7338,10 @@ int
 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
 {
 	struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
-							rrq->nlp_DID);
+						       rrq->nlp_DID);
+	if (!ndlp)
+		return 1;
+
 	if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
 		return lpfc_issue_els_rrq(rrq->vport, ndlp,
 					 rrq->nlp_DID, rrq);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_hbadisc.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_hbadisc.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_hbadisc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_hbadisc.c	2019-07-28 02:28:39.000000000 -0400
@@ -932,7 +932,11 @@ lpfc_linkdown(struct lpfc_hba *phba)
 		}
 	}
 	lpfc_destroy_vport_work_array(phba, vports);
-	/* Clean up any firmware default rpi's */
+
+	/* Clean up any SLI3 firmware default rpi's */
+	if (phba->sli_rev > LPFC_SLI_REV3)
+		goto skip_unreg_did;
+
 	mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (mb) {
 		lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb);
@@ -944,6 +948,7 @@ lpfc_linkdown(struct lpfc_hba *phba)
 		}
 	}
 
+ skip_unreg_did:
 	/* Setup myDID for link up if we are in pt2pt mode */
 	if (phba->pport->fc_flag & FC_PT2PT) {
 		mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
@@ -4868,6 +4873,10 @@ lpfc_unreg_rpi(struct lpfc_vport *vport,
 					 * accept PLOGIs after unreg_rpi_cmpl
 					 */
 					acc_plogi = 0;
+				} else if (vport->load_flag & FC_UNLOADING) {
+					mbox->ctx_ndlp = NULL;
+					mbox->mbox_cmpl =
+						lpfc_sli_def_mbox_cmpl;
 				} else {
 					mbox->ctx_ndlp = ndlp;
 					mbox->mbox_cmpl =
@@ -4979,6 +4988,10 @@ lpfc_unreg_default_rpis(struct lpfc_vpor
 	LPFC_MBOXQ_t     *mbox;
 	int rc;
 
+	/* Unreg DID is an SLI3 operation. */
+	if (phba->sli_rev > LPFC_SLI_REV3)
+		return;
+
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (mbox) {
 		lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_init.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_init.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_init.c	2019-05-05 21:44:02.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_init.c	2019-07-28 13:48:49.000000000 -0400
@@ -3245,6 +3245,13 @@ void lpfc_destroy_multixri_pools(struct
 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
 		lpfc_destroy_expedite_pool(phba);
 
+	if (!(phba->pport->load_flag & FC_UNLOADING)) {
+		lpfc_sli_flush_fcp_rings(phba);
+
+		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
+			lpfc_sli_flush_nvme_rings(phba);
+	}
+
 	hwq_count = phba->cfg_hdw_queue;
 
 	for (i = 0; i < hwq_count; i++) {
@@ -3611,8 +3618,6 @@ lpfc_io_free(struct lpfc_hba *phba)
 	struct lpfc_sli4_hdw_queue *qp;
 	int idx;
 
-	spin_lock_irq(&phba->hbalock);
-
 	for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
 		qp = &phba->sli4_hba.hdwq[idx];
 		/* Release all the lpfc_nvme_bufs maintained by this host. */
@@ -3642,8 +3647,6 @@ lpfc_io_free(struct lpfc_hba *phba)
 		}
 		spin_unlock(&qp->io_buf_list_get_lock);
 	}
-
-	spin_unlock_irq(&phba->hbalock);
 }
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_nvme.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_nvme.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_nvme.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_nvme.c	2019-07-28 02:28:39.000000000 -0400
@@ -2080,15 +2080,15 @@ lpfc_nvme_create_localport(struct lpfc_v
 		lpfc_nvme_template.max_hw_queues =
 			phba->sli4_hba.num_present_cpu;
 
+	if (!IS_ENABLED(CONFIG_NVME_FC))
+		return ret;
+
 	/* localport is allocated from the stack, but the registration
 	 * call allocates heap memory as well as the private area.
 	 */
-#if (IS_ENABLED(CONFIG_NVME_FC))
+
 	ret = nvme_fc_register_localport(&nfcp_info, &lpfc_nvme_template,
 					 &vport->phba->pcidev->dev, &localport);
-#else
-	ret = -ENOMEM;
-#endif
 	if (!ret) {
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME | LOG_NVME_DISC,
 				 "6005 Successfully registered local "
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_scsi.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_scsi.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_scsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_scsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -3670,7 +3670,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 	if (phba->cpucheck_on & LPFC_CHECK_SCSI_IO) {
 		cpu = smp_processor_id();
-		if (cpu < LPFC_CHECK_CPU_CNT)
+		if (cpu < LPFC_CHECK_CPU_CNT && phba->sli4_hba.hdwq)
 			phba->sli4_hba.hdwq[idx].cpucheck_cmpl_io[cpu]++;
 	}
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_sli.c linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_sli.c
--- linux-libre-5.1-gnu/drivers/scsi/lpfc/lpfc_sli.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/lpfc/lpfc_sli.c	2019-07-28 02:28:39.000000000 -0400
@@ -994,15 +994,14 @@ lpfc_cleanup_vports_rrqs(struct lpfc_vpo
  * @ndlp: Targets nodelist pointer for this exchange.
  * @xritag the xri in the bitmap to test.
  *
- * This function is called with hbalock held. This function
- * returns 0 = rrq not active for this xri
- *         1 = rrq is valid for this xri.
+ * This function returns:
+ * 0 = rrq not active for this xri
+ * 1 = rrq is valid for this xri.
  **/
 int
 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 			uint16_t  xritag)
 {
-	lockdep_assert_held(&phba->hbalock);
 	if (!ndlp)
 		return 0;
 	if (!ndlp->active_rrqs_xri_bitmap)
@@ -1105,10 +1104,11 @@ out:
  * @phba: Pointer to HBA context object.
  * @piocb: Pointer to the iocbq.
  *
- * This function is called with the ring lock held. This function
- * gets a new driver sglq object from the sglq list. If the
- * list is not empty then it is successful, it returns pointer to the newly
- * allocated sglq object else it returns NULL.
+ * The driver calls this function with either the nvme ls ring lock
+ * or the fc els ring lock held depending on the iocb usage.  This function
+ * gets a new driver sglq object from the sglq list. If the list is not empty
+ * then it is successful, it returns pointer to the newly allocated sglq
+ * object else it returns NULL.
  **/
 static struct lpfc_sglq *
 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
@@ -1118,9 +1118,15 @@ __lpfc_sli_get_els_sglq(struct lpfc_hba
 	struct lpfc_sglq *start_sglq = NULL;
 	struct lpfc_io_buf *lpfc_cmd;
 	struct lpfc_nodelist *ndlp;
+	struct lpfc_sli_ring *pring = NULL;
 	int found = 0;
 
-	lockdep_assert_held(&phba->hbalock);
+	if (piocbq->iocb_flag & LPFC_IO_NVME_LS)
+		pring =  phba->sli4_hba.nvmels_wq->pring;
+	else
+		pring = lpfc_phba_elsring(phba);
+
+	lockdep_assert_held(&pring->ring_lock);
 
 	if (piocbq->iocb_flag &  LPFC_IO_FCP) {
 		lpfc_cmd = (struct lpfc_io_buf *) piocbq->context1;
@@ -1563,7 +1569,8 @@ lpfc_sli_ring_map(struct lpfc_hba *phba)
  * @pring: Pointer to driver SLI ring object.
  * @piocb: Pointer to the driver iocb object.
  *
- * This function is called with hbalock held. The function adds the
+ * The driver calls this function with the hbalock held for SLI3 ports or
+ * the ring lock held for SLI4 ports. The function adds the
  * new iocb to txcmplq of the given ring. This function always returns
  * 0. If this function is called for ELS ring, this function checks if
  * there is a vport associated with the ELS command. This function also
@@ -1573,7 +1580,10 @@ static int
 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 			struct lpfc_iocbq *piocb)
 {
-	lockdep_assert_held(&phba->hbalock);
+	if (phba->sli_rev == LPFC_SLI_REV4)
+		lockdep_assert_held(&pring->ring_lock);
+	else
+		lockdep_assert_held(&phba->hbalock);
 
 	BUG_ON(!piocb);
 
@@ -2502,8 +2512,8 @@ lpfc_sli_def_mbox_cmpl(struct lpfc_hba *
 			} else {
 				ndlp->nlp_flag &= ~NLP_UNREG_INP;
 			}
+			pmb->ctx_ndlp = NULL;
 		}
-		pmb->ctx_ndlp = NULL;
 	}
 
 	/* Check security permission status on INIT_LINK mailbox command */
@@ -2970,8 +2980,8 @@ lpfc_sli_process_unsol_iocb(struct lpfc_
  *
  * This function looks up the iocb_lookup table to get the command iocb
  * corresponding to the given response iocb using the iotag of the
- * response iocb. This function is called with the hbalock held
- * for sli3 devices or the ring_lock for sli4 devices.
+ * response iocb. The driver calls this function with the hbalock held
+ * for SLI3 ports or the ring lock held for SLI4 ports.
  * This function returns the command iocb object if it finds the command
  * iocb else returns NULL.
  **/
@@ -2982,8 +2992,15 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *p
 {
 	struct lpfc_iocbq *cmd_iocb = NULL;
 	uint16_t iotag;
-	lockdep_assert_held(&phba->hbalock);
+	spinlock_t *temp_lock = NULL;
+	unsigned long iflag = 0;
+
+	if (phba->sli_rev == LPFC_SLI_REV4)
+		temp_lock = &pring->ring_lock;
+	else
+		temp_lock = &phba->hbalock;
 
+	spin_lock_irqsave(temp_lock, iflag);
 	iotag = prspiocb->iocb.ulpIoTag;
 
 	if (iotag != 0 && iotag <= phba->sli.last_iotag) {
@@ -2993,10 +3010,12 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *p
 			list_del_init(&cmd_iocb->list);
 			cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 			pring->txcmplq_cnt--;
+			spin_unlock_irqrestore(temp_lock, iflag);
 			return cmd_iocb;
 		}
 	}
 
+	spin_unlock_irqrestore(temp_lock, iflag);
 	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 			"0317 iotag x%x is out of "
 			"range: max iotag x%x wd0 x%x\n",
@@ -3012,8 +3031,8 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *p
  * @iotag: IOCB tag.
  *
  * This function looks up the iocb_lookup table to get the command iocb
- * corresponding to the given iotag. This function is called with the
- * hbalock held.
+ * corresponding to the given iotag. The driver calls this function with
+ * the ring lock held because this function is an SLI4 port only helper.
  * This function returns the command iocb object if it finds the command
  * iocb else returns NULL.
  **/
@@ -3022,8 +3041,15 @@ lpfc_sli_iocbq_lookup_by_tag(struct lpfc
 			     struct lpfc_sli_ring *pring, uint16_t iotag)
 {
 	struct lpfc_iocbq *cmd_iocb = NULL;
+	spinlock_t *temp_lock = NULL;
+	unsigned long iflag = 0;
 
-	lockdep_assert_held(&phba->hbalock);
+	if (phba->sli_rev == LPFC_SLI_REV4)
+		temp_lock = &pring->ring_lock;
+	else
+		temp_lock = &phba->hbalock;
+
+	spin_lock_irqsave(temp_lock, iflag);
 	if (iotag != 0 && iotag <= phba->sli.last_iotag) {
 		cmd_iocb = phba->sli.iocbq_lookup[iotag];
 		if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
@@ -3031,10 +3057,12 @@ lpfc_sli_iocbq_lookup_by_tag(struct lpfc
 			list_del_init(&cmd_iocb->list);
 			cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 			pring->txcmplq_cnt--;
+			spin_unlock_irqrestore(temp_lock, iflag);
 			return cmd_iocb;
 		}
 	}
 
+	spin_unlock_irqrestore(temp_lock, iflag);
 	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 			"0372 iotag x%x lookup error: max iotag (x%x) "
 			"iocb_flag x%x\n",
@@ -3068,17 +3096,7 @@ lpfc_sli_process_sol_iocb(struct lpfc_hb
 	int rc = 1;
 	unsigned long iflag;
 
-	/* Based on the iotag field, get the cmd IOCB from the txcmplq */
-	if (phba->sli_rev == LPFC_SLI_REV4)
-		spin_lock_irqsave(&pring->ring_lock, iflag);
-	else
-		spin_lock_irqsave(&phba->hbalock, iflag);
 	cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
-	if (phba->sli_rev == LPFC_SLI_REV4)
-		spin_unlock_irqrestore(&pring->ring_lock, iflag);
-	else
-		spin_unlock_irqrestore(&phba->hbalock, iflag);
-
 	if (cmdiocbp) {
 		if (cmdiocbp->iocb_cmpl) {
 			/*
@@ -3409,8 +3427,10 @@ lpfc_sli_handle_fast_ring_event(struct l
 				break;
 			}
 
+			spin_unlock_irqrestore(&phba->hbalock, iflag);
 			cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
 							 &rspiocbq);
+			spin_lock_irqsave(&phba->hbalock, iflag);
 			if (unlikely(!cmdiocbq))
 				break;
 			if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
@@ -3604,9 +3624,12 @@ lpfc_sli_sp_handle_rspiocb(struct lpfc_h
 
 		case LPFC_ABORT_IOCB:
 			cmdiocbp = NULL;
-			if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
+			if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) {
+				spin_unlock_irqrestore(&phba->hbalock, iflag);
 				cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
 								 saveq);
+				spin_lock_irqsave(&phba->hbalock, iflag);
+			}
 			if (cmdiocbp) {
 				/* Call the specified completion routine */
 				if (cmdiocbp->iocb_cmpl) {
@@ -7652,12 +7675,6 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phb
 		phba->cfg_xri_rebalancing = 0;
 	}
 
-	/* Arm the CQs and then EQs on device */
-	lpfc_sli4_arm_cqeq_intr(phba);
-
-	/* Indicate device interrupt mode */
-	phba->sli4_hba.intr_enable = 1;
-
 	/* Allow asynchronous mailbox command to go through */
 	spin_lock_irq(&phba->hbalock);
 	phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
@@ -7726,6 +7743,12 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phb
 		phba->trunk_link.link3.state = LPFC_LINK_DOWN;
 	spin_unlock_irq(&phba->hbalock);
 
+	/* Arm the CQs and then EQs on device */
+	lpfc_sli4_arm_cqeq_intr(phba);
+
+	/* Indicate device interrupt mode */
+	phba->sli4_hba.intr_enable = 1;
+
 	if (!(phba->hba_flag & HBA_FCOE_MODE) &&
 	    (phba->hba_flag & LINK_DISABLED)) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
@@ -13070,13 +13093,11 @@ lpfc_sli4_els_wcqe_to_rspiocbq(struct lp
 		return NULL;
 
 	wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
-	spin_lock_irqsave(&pring->ring_lock, iflags);
 	pring->stats.iocb_event++;
 	/* Look up the ELS command IOCB and create pseudo response IOCB */
 	cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
 				bf_get(lpfc_wcqe_c_request_tag, wcqe));
 	if (unlikely(!cmdiocbq)) {
-		spin_unlock_irqrestore(&pring->ring_lock, iflags);
 		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
 				"0386 ELS complete with no corresponding "
 				"cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
@@ -13086,6 +13107,7 @@ lpfc_sli4_els_wcqe_to_rspiocbq(struct lp
 		return NULL;
 	}
 
+	spin_lock_irqsave(&pring->ring_lock, iflags);
 	/* Put the iocb back on the txcmplq */
 	lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
 	spin_unlock_irqrestore(&pring->ring_lock, iflags);
@@ -13856,9 +13878,9 @@ lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc
 	/* Look up the FCP command IOCB and create pseudo response IOCB */
 	spin_lock_irqsave(&pring->ring_lock, iflags);
 	pring->stats.iocb_event++;
+	spin_unlock_irqrestore(&pring->ring_lock, iflags);
 	cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
 				bf_get(lpfc_wcqe_c_request_tag, wcqe));
-	spin_unlock_irqrestore(&pring->ring_lock, iflags);
 	if (unlikely(!cmdiocbq)) {
 		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
 				"0374 FCP complete with no corresponding "
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/mac_scsi.c linux-libre-5.1.21-gnu/drivers/scsi/mac_scsi.c
--- linux-libre-5.1-gnu/drivers/scsi/mac_scsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/mac_scsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -3,6 +3,8 @@
  *
  * Copyright 1998, Michael Schmitz <mschmitz@lbl.gov>
  *
+ * Copyright 2019 Finn Thain
+ *
  * derived in part from:
  */
 /*
@@ -11,6 +13,7 @@
  * Copyright 1995, Russell King
  */
 
+#include <linux/delay.h>
 #include <linux/types.h>
 #include <linux/module.h>
 #include <linux/ioport.h>
@@ -52,7 +55,7 @@ static int setup_cmd_per_lun = -1;
 module_param(setup_cmd_per_lun, int, 0);
 static int setup_sg_tablesize = -1;
 module_param(setup_sg_tablesize, int, 0);
-static int setup_use_pdma = -1;
+static int setup_use_pdma = 512;
 module_param(setup_use_pdma, int, 0);
 static int setup_hostid = -1;
 module_param(setup_hostid, int, 0);
@@ -89,101 +92,217 @@ static int __init mac_scsi_setup(char *s
 __setup("mac5380=", mac_scsi_setup);
 #endif /* !MODULE */
 
-/* Pseudo DMA asm originally by Ove Edlund */
+/*
+ * According to "Inside Macintosh: Devices", Mac OS requires disk drivers to
+ * specify the number of bytes between the delays expected from a SCSI target.
+ * This allows the operating system to "prevent bus errors when a target fails
+ * to deliver the next byte within the processor bus error timeout period."
+ * Linux SCSI drivers lack knowledge of the timing behaviour of SCSI targets
+ * so bus errors are unavoidable.
+ *
+ * If a MOVE.B instruction faults, we assume that zero bytes were transferred
+ * and simply retry. That assumption probably depends on target behaviour but
+ * seems to hold up okay. The NOP provides synchronization: without it the
+ * fault can sometimes occur after the program counter has moved past the
+ * offending instruction. Post-increment addressing can't be used.
+ */
 
-#define CP_IO_TO_MEM(s,d,n)				\
-__asm__ __volatile__					\
-    ("    cmp.w  #4,%2\n"				\
-     "    bls    8f\n"					\
-     "    move.w %1,%%d0\n"				\
-     "    neg.b  %%d0\n"				\
-     "    and.w  #3,%%d0\n"				\
-     "    sub.w  %%d0,%2\n"				\
-     "    bra    2f\n"					\
-     " 1: move.b (%0),(%1)+\n"				\
-     " 2: dbf    %%d0,1b\n"				\
-     "    move.w %2,%%d0\n"				\
-     "    lsr.w  #5,%%d0\n"				\
-     "    bra    4f\n"					\
-     " 3: move.l (%0),(%1)+\n"				\
-     "31: move.l (%0),(%1)+\n"				\
-     "32: move.l (%0),(%1)+\n"				\
-     "33: move.l (%0),(%1)+\n"				\
-     "34: move.l (%0),(%1)+\n"				\
-     "35: move.l (%0),(%1)+\n"				\
-     "36: move.l (%0),(%1)+\n"				\
-     "37: move.l (%0),(%1)+\n"				\
-     " 4: dbf    %%d0,3b\n"				\
-     "    move.w %2,%%d0\n"				\
-     "    lsr.w  #2,%%d0\n"				\
-     "    and.w  #7,%%d0\n"				\
-     "    bra    6f\n"					\
-     " 5: move.l (%0),(%1)+\n"				\
-     " 6: dbf    %%d0,5b\n"				\
-     "    and.w  #3,%2\n"				\
-     "    bra    8f\n"					\
-     " 7: move.b (%0),(%1)+\n"				\
-     " 8: dbf    %2,7b\n"				\
-     "    moveq.l #0, %2\n"				\
-     " 9: \n"						\
-     ".section .fixup,\"ax\"\n"				\
-     "    .even\n"					\
-     "91: moveq.l #1, %2\n"				\
-     "    jra 9b\n"					\
-     "94: moveq.l #4, %2\n"				\
-     "    jra 9b\n"					\
-     ".previous\n"					\
-     ".section __ex_table,\"a\"\n"			\
-     "   .align 4\n"					\
-     "   .long  1b,91b\n"				\
-     "   .long  3b,94b\n"				\
-     "   .long 31b,94b\n"				\
-     "   .long 32b,94b\n"				\
-     "   .long 33b,94b\n"				\
-     "   .long 34b,94b\n"				\
-     "   .long 35b,94b\n"				\
-     "   .long 36b,94b\n"				\
-     "   .long 37b,94b\n"				\
-     "   .long  5b,94b\n"				\
-     "   .long  7b,91b\n"				\
-     ".previous"					\
-     : "=a"(s), "=a"(d), "=d"(n)			\
-     : "0"(s), "1"(d), "2"(n)				\
-     : "d0")
+#define MOVE_BYTE(operands) \
+	asm volatile ( \
+		"1:     moveb " operands "     \n" \
+		"11:    nop                    \n" \
+		"       addq #1,%0             \n" \
+		"       subq #1,%1             \n" \
+		"40:                           \n" \
+		"                              \n" \
+		".section .fixup,\"ax\"        \n" \
+		".even                         \n" \
+		"90:    movel #1, %2           \n" \
+		"       jra 40b                \n" \
+		".previous                     \n" \
+		"                              \n" \
+		".section __ex_table,\"a\"     \n" \
+		".align  4                     \n" \
+		".long   1b,90b                \n" \
+		".long  11b,90b                \n" \
+		".previous                     \n" \
+		: "+a" (addr), "+r" (n), "+r" (result) : "a" (io))
+
+/*
+ * If a MOVE.W (or MOVE.L) instruction faults, it cannot be retried because
+ * the residual byte count would be uncertain. In that situation the MOVE_WORD
+ * macro clears n in the fixup section to abort the transfer.
+ */
+
+#define MOVE_WORD(operands) \
+	asm volatile ( \
+		"1:     movew " operands "     \n" \
+		"11:    nop                    \n" \
+		"       subq #2,%1             \n" \
+		"40:                           \n" \
+		"                              \n" \
+		".section .fixup,\"ax\"        \n" \
+		".even                         \n" \
+		"90:    movel #0, %1           \n" \
+		"       movel #2, %2           \n" \
+		"       jra 40b                \n" \
+		".previous                     \n" \
+		"                              \n" \
+		".section __ex_table,\"a\"     \n" \
+		".align  4                     \n" \
+		".long   1b,90b                \n" \
+		".long  11b,90b                \n" \
+		".previous                     \n" \
+		: "+a" (addr), "+r" (n), "+r" (result) : "a" (io))
+
+#define MOVE_16_WORDS(operands) \
+	asm volatile ( \
+		"1:     movew " operands "     \n" \
+		"2:     movew " operands "     \n" \
+		"3:     movew " operands "     \n" \
+		"4:     movew " operands "     \n" \
+		"5:     movew " operands "     \n" \
+		"6:     movew " operands "     \n" \
+		"7:     movew " operands "     \n" \
+		"8:     movew " operands "     \n" \
+		"9:     movew " operands "     \n" \
+		"10:    movew " operands "     \n" \
+		"11:    movew " operands "     \n" \
+		"12:    movew " operands "     \n" \
+		"13:    movew " operands "     \n" \
+		"14:    movew " operands "     \n" \
+		"15:    movew " operands "     \n" \
+		"16:    movew " operands "     \n" \
+		"17:    nop                    \n" \
+		"       subl  #32,%1           \n" \
+		"40:                           \n" \
+		"                              \n" \
+		".section .fixup,\"ax\"        \n" \
+		".even                         \n" \
+		"90:    movel #0, %1           \n" \
+		"       movel #2, %2           \n" \
+		"       jra 40b                \n" \
+		".previous                     \n" \
+		"                              \n" \
+		".section __ex_table,\"a\"     \n" \
+		".align  4                     \n" \
+		".long   1b,90b                \n" \
+		".long   2b,90b                \n" \
+		".long   3b,90b                \n" \
+		".long   4b,90b                \n" \
+		".long   5b,90b                \n" \
+		".long   6b,90b                \n" \
+		".long   7b,90b                \n" \
+		".long   8b,90b                \n" \
+		".long   9b,90b                \n" \
+		".long  10b,90b                \n" \
+		".long  11b,90b                \n" \
+		".long  12b,90b                \n" \
+		".long  13b,90b                \n" \
+		".long  14b,90b                \n" \
+		".long  15b,90b                \n" \
+		".long  16b,90b                \n" \
+		".long  17b,90b                \n" \
+		".previous                     \n" \
+		: "+a" (addr), "+r" (n), "+r" (result) : "a" (io))
+
+#define MAC_PDMA_DELAY		32
+
+static inline int mac_pdma_recv(void __iomem *io, unsigned char *start, int n)
+{
+	unsigned char *addr = start;
+	int result = 0;
+
+	if (n >= 1) {
+		MOVE_BYTE("%3@,%0@");
+		if (result)
+			goto out;
+	}
+	if (n >= 1 && ((unsigned long)addr & 1)) {
+		MOVE_BYTE("%3@,%0@");
+		if (result)
+			goto out;
+	}
+	while (n >= 32)
+		MOVE_16_WORDS("%3@,%0@+");
+	while (n >= 2)
+		MOVE_WORD("%3@,%0@+");
+	if (result)
+		return start - addr; /* Negated to indicate uncertain length */
+	if (n == 1)
+		MOVE_BYTE("%3@,%0@");
+out:
+	return addr - start;
+}
+
+static inline int mac_pdma_send(unsigned char *start, void __iomem *io, int n)
+{
+	unsigned char *addr = start;
+	int result = 0;
+
+	if (n >= 1) {
+		MOVE_BYTE("%0@,%3@");
+		if (result)
+			goto out;
+	}
+	if (n >= 1 && ((unsigned long)addr & 1)) {
+		MOVE_BYTE("%0@,%3@");
+		if (result)
+			goto out;
+	}
+	while (n >= 32)
+		MOVE_16_WORDS("%0@+,%3@");
+	while (n >= 2)
+		MOVE_WORD("%0@+,%3@");
+	if (result)
+		return start - addr; /* Negated to indicate uncertain length */
+	if (n == 1)
+		MOVE_BYTE("%0@,%3@");
+out:
+	return addr - start;
+}
 
 static inline int macscsi_pread(struct NCR5380_hostdata *hostdata,
                                 unsigned char *dst, int len)
 {
 	u8 __iomem *s = hostdata->pdma_io + (INPUT_DATA_REG << 4);
 	unsigned char *d = dst;
-	int n = len;
-	int transferred;
+
+	hostdata->pdma_residual = len;
 
 	while (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG,
 	                              BASR_DRQ | BASR_PHASE_MATCH,
 	                              BASR_DRQ | BASR_PHASE_MATCH, HZ / 64)) {
-		CP_IO_TO_MEM(s, d, n);
+		int bytes;
 
-		transferred = d - dst - n;
-		hostdata->pdma_residual = len - transferred;
+		bytes = mac_pdma_recv(s, d, min(hostdata->pdma_residual, 512));
 
-		/* No bus error. */
-		if (n == 0)
+		if (bytes > 0) {
+			d += bytes;
+			hostdata->pdma_residual -= bytes;
+		}
+
+		if (hostdata->pdma_residual == 0)
 			return 0;
 
-		/* Target changed phase early? */
 		if (NCR5380_poll_politely2(hostdata, STATUS_REG, SR_REQ, SR_REQ,
-		                           BUS_AND_STATUS_REG, BASR_ACK, BASR_ACK, HZ / 64) < 0)
-			scmd_printk(KERN_ERR, hostdata->connected,
+		                           BUS_AND_STATUS_REG, BASR_ACK,
+		                           BASR_ACK, HZ / 64) < 0)
+			scmd_printk(KERN_DEBUG, hostdata->connected,
 			            "%s: !REQ and !ACK\n", __func__);
 		if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))
 			return 0;
 
+		if (bytes == 0)
+			udelay(MAC_PDMA_DELAY);
+
+		if (bytes >= 0)
+			continue;
+
 		dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host,
-		         "%s: bus error (%d/%d)\n", __func__, transferred, len);
+		         "%s: bus error (%d/%d)\n", __func__, d - dst, len);
 		NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host);
-		d = dst + transferred;
-		n = len - transferred;
+		return -1;
 	}
 
 	scmd_printk(KERN_ERR, hostdata->connected,
@@ -192,93 +311,27 @@ static inline int macscsi_pread(struct N
 	return -1;
 }
 
-
-#define CP_MEM_TO_IO(s,d,n)				\
-__asm__ __volatile__					\
-    ("    cmp.w  #4,%2\n"				\
-     "    bls    8f\n"					\
-     "    move.w %0,%%d0\n"				\
-     "    neg.b  %%d0\n"				\
-     "    and.w  #3,%%d0\n"				\
-     "    sub.w  %%d0,%2\n"				\
-     "    bra    2f\n"					\
-     " 1: move.b (%0)+,(%1)\n"				\
-     " 2: dbf    %%d0,1b\n"				\
-     "    move.w %2,%%d0\n"				\
-     "    lsr.w  #5,%%d0\n"				\
-     "    bra    4f\n"					\
-     " 3: move.l (%0)+,(%1)\n"				\
-     "31: move.l (%0)+,(%1)\n"				\
-     "32: move.l (%0)+,(%1)\n"				\
-     "33: move.l (%0)+,(%1)\n"				\
-     "34: move.l (%0)+,(%1)\n"				\
-     "35: move.l (%0)+,(%1)\n"				\
-     "36: move.l (%0)+,(%1)\n"				\
-     "37: move.l (%0)+,(%1)\n"				\
-     " 4: dbf    %%d0,3b\n"				\
-     "    move.w %2,%%d0\n"				\
-     "    lsr.w  #2,%%d0\n"				\
-     "    and.w  #7,%%d0\n"				\
-     "    bra    6f\n"					\
-     " 5: move.l (%0)+,(%1)\n"				\
-     " 6: dbf    %%d0,5b\n"				\
-     "    and.w  #3,%2\n"				\
-     "    bra    8f\n"					\
-     " 7: move.b (%0)+,(%1)\n"				\
-     " 8: dbf    %2,7b\n"				\
-     "    moveq.l #0, %2\n"				\
-     " 9: \n"						\
-     ".section .fixup,\"ax\"\n"				\
-     "    .even\n"					\
-     "91: moveq.l #1, %2\n"				\
-     "    jra 9b\n"					\
-     "94: moveq.l #4, %2\n"				\
-     "    jra 9b\n"					\
-     ".previous\n"					\
-     ".section __ex_table,\"a\"\n"			\
-     "   .align 4\n"					\
-     "   .long  1b,91b\n"				\
-     "   .long  3b,94b\n"				\
-     "   .long 31b,94b\n"				\
-     "   .long 32b,94b\n"				\
-     "   .long 33b,94b\n"				\
-     "   .long 34b,94b\n"				\
-     "   .long 35b,94b\n"				\
-     "   .long 36b,94b\n"				\
-     "   .long 37b,94b\n"				\
-     "   .long  5b,94b\n"				\
-     "   .long  7b,91b\n"				\
-     ".previous"					\
-     : "=a"(s), "=a"(d), "=d"(n)			\
-     : "0"(s), "1"(d), "2"(n)				\
-     : "d0")
-
 static inline int macscsi_pwrite(struct NCR5380_hostdata *hostdata,
                                  unsigned char *src, int len)
 {
 	unsigned char *s = src;
 	u8 __iomem *d = hostdata->pdma_io + (OUTPUT_DATA_REG << 4);
-	int n = len;
-	int transferred;
+
+	hostdata->pdma_residual = len;
 
 	while (!NCR5380_poll_politely(hostdata, BUS_AND_STATUS_REG,
 	                              BASR_DRQ | BASR_PHASE_MATCH,
 	                              BASR_DRQ | BASR_PHASE_MATCH, HZ / 64)) {
-		CP_MEM_TO_IO(s, d, n);
+		int bytes;
 
-		transferred = s - src - n;
-		hostdata->pdma_residual = len - transferred;
+		bytes = mac_pdma_send(s, d, min(hostdata->pdma_residual, 512));
 
-		/* Target changed phase early? */
-		if (NCR5380_poll_politely2(hostdata, STATUS_REG, SR_REQ, SR_REQ,
-		                           BUS_AND_STATUS_REG, BASR_ACK, BASR_ACK, HZ / 64) < 0)
-			scmd_printk(KERN_ERR, hostdata->connected,
-			            "%s: !REQ and !ACK\n", __func__);
-		if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))
-			return 0;
+		if (bytes > 0) {
+			s += bytes;
+			hostdata->pdma_residual -= bytes;
+		}
 
-		/* No bus error. */
-		if (n == 0) {
+		if (hostdata->pdma_residual == 0) {
 			if (NCR5380_poll_politely(hostdata, TARGET_COMMAND_REG,
 			                          TCR_LAST_BYTE_SENT,
 			                          TCR_LAST_BYTE_SENT, HZ / 64) < 0)
@@ -287,17 +340,29 @@ static inline int macscsi_pwrite(struct
 			return 0;
 		}
 
+		if (NCR5380_poll_politely2(hostdata, STATUS_REG, SR_REQ, SR_REQ,
+		                           BUS_AND_STATUS_REG, BASR_ACK,
+		                           BASR_ACK, HZ / 64) < 0)
+			scmd_printk(KERN_DEBUG, hostdata->connected,
+			            "%s: !REQ and !ACK\n", __func__);
+		if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_PHASE_MATCH))
+			return 0;
+
+		if (bytes == 0)
+			udelay(MAC_PDMA_DELAY);
+
+		if (bytes >= 0)
+			continue;
+
 		dsprintk(NDEBUG_PSEUDO_DMA, hostdata->host,
-		         "%s: bus error (%d/%d)\n", __func__, transferred, len);
+		         "%s: bus error (%d/%d)\n", __func__, s - src, len);
 		NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host);
-		s = src + transferred;
-		n = len - transferred;
+		return -1;
 	}
 
 	scmd_printk(KERN_ERR, hostdata->connected,
 	            "%s: phase mismatch or !DRQ\n", __func__);
 	NCR5380_dprint(NDEBUG_PSEUDO_DMA, hostdata->host);
-
 	return -1;
 }
 
@@ -305,7 +370,7 @@ static int macscsi_dma_xfer_len(struct N
                                 struct scsi_cmnd *cmd)
 {
 	if (hostdata->flags & FLAG_NO_PSEUDO_DMA ||
-	    cmd->SCp.this_residual < 16)
+	    cmd->SCp.this_residual < setup_use_pdma)
 		return 0;
 
 	return cmd->SCp.this_residual;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/megaraid/megaraid_sas_base.c linux-libre-5.1.21-gnu/drivers/scsi/megaraid/megaraid_sas_base.c
--- linux-libre-5.1-gnu/drivers/scsi/megaraid/megaraid_sas_base.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/megaraid/megaraid_sas_base.c	2019-07-28 02:28:39.000000000 -0400
@@ -6168,7 +6168,8 @@ megasas_get_target_prop(struct megasas_i
 	int ret;
 	struct megasas_cmd *cmd;
 	struct megasas_dcmd_frame *dcmd;
-	u16 targetId = (sdev->channel % 2) + sdev->id;
+	u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) +
+			sdev->id;
 
 	cmd = megasas_get_cmd(instance);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/myrs.c linux-libre-5.1.21-gnu/drivers/scsi/myrs.c
--- linux-libre-5.1-gnu/drivers/scsi/myrs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/myrs.c	2019-07-28 02:28:39.000000000 -0400
@@ -818,7 +818,7 @@ static void myrs_log_event(struct myrs_h
 	unsigned char ev_type, *ev_msg;
 	struct Scsi_Host *shost = cs->host;
 	struct scsi_device *sdev;
-	struct scsi_sense_hdr sshdr;
+	struct scsi_sense_hdr sshdr = {0};
 	unsigned char sense_info[4];
 	unsigned char cmd_specific[4];
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/NCR5380.c linux-libre-5.1.21-gnu/drivers/scsi/NCR5380.c
--- linux-libre-5.1-gnu/drivers/scsi/NCR5380.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/NCR5380.c	2019-07-28 02:28:39.000000000 -0400
@@ -710,6 +710,8 @@ static void NCR5380_main(struct work_str
 			NCR5380_information_transfer(instance);
 			done = 0;
 		}
+		if (!hostdata->connected)
+			NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 		spin_unlock_irq(&hostdata->lock);
 		if (!done)
 			cond_resched();
@@ -1111,8 +1113,6 @@ static bool NCR5380_select(struct Scsi_H
 		spin_lock_irq(&hostdata->lock);
 		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
 		NCR5380_reselect(instance);
-		if (!hostdata->connected)
-			NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 		shost_printk(KERN_ERR, instance, "reselection after won arbitration?\n");
 		goto out;
 	}
@@ -1120,7 +1120,6 @@ static bool NCR5380_select(struct Scsi_H
 	if (err < 0) {
 		spin_lock_irq(&hostdata->lock);
 		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-		NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 
 		/* Can't touch cmd if it has been reclaimed by the scsi ML */
 		if (!hostdata->selecting)
@@ -1158,7 +1157,6 @@ static bool NCR5380_select(struct Scsi_H
 	if (err < 0) {
 		shost_printk(KERN_ERR, instance, "select: REQ timeout\n");
 		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
-		NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 		goto out;
 	}
 	if (!hostdata->selecting) {
@@ -1764,10 +1762,8 @@ static void NCR5380_information_transfer
 						scmd_printk(KERN_INFO, cmd,
 							"switching to slow handshake\n");
 						cmd->device->borken = 1;
-						sink = 1;
-						do_abort(instance);
-						cmd->result = DID_ERROR << 16;
-						/* XXX - need to source or sink data here, as appropriate */
+						do_reset(instance);
+						bus_reset_cleanup(instance);
 					}
 				} else {
 					/* Transfer a small chunk so that the
@@ -1827,9 +1823,6 @@ static void NCR5380_information_transfer
 					 */
 					NCR5380_write(TARGET_COMMAND_REG, 0);
 
-					/* Enable reselect interrupts */
-					NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
-
 					maybe_release_dma_irq(instance);
 					return;
 				case MESSAGE_REJECT:
@@ -1861,8 +1854,6 @@ static void NCR5380_information_transfer
 					 */
 					NCR5380_write(TARGET_COMMAND_REG, 0);
 
-					/* Enable reselect interrupts */
-					NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 #ifdef SUN3_SCSI_VME
 					dregs->csr |= CSR_DMA_ENABLE;
 #endif
@@ -1965,7 +1956,6 @@ static void NCR5380_information_transfer
 					cmd->result = DID_ERROR << 16;
 					complete_cmd(instance, cmd);
 					maybe_release_dma_irq(instance);
-					NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
 					return;
 				}
 				msgout = NOP;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/NCR5380.h linux-libre-5.1.21-gnu/drivers/scsi/NCR5380.h
--- linux-libre-5.1-gnu/drivers/scsi/NCR5380.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/NCR5380.h	2019-07-28 02:28:39.000000000 -0400
@@ -235,7 +235,7 @@ struct NCR5380_cmd {
 #define NCR5380_PIO_CHUNK_SIZE		256
 
 /* Time limit (ms) to poll registers when IRQs are disabled, e.g. during PDMA */
-#define NCR5380_REG_POLL_TIME		15
+#define NCR5380_REG_POLL_TIME		10
 
 static inline struct scsi_cmnd *NCR5380_to_scmd(struct NCR5380_cmd *ncmd_ptr)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qedf/qedf_io.c linux-libre-5.1.21-gnu/drivers/scsi/qedf/qedf_io.c
--- linux-libre-5.1-gnu/drivers/scsi/qedf/qedf_io.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qedf/qedf_io.c	2019-07-28 02:28:39.000000000 -0400
@@ -902,6 +902,7 @@ int qedf_post_io_req(struct qedf_rport *
 	if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
 		QEDF_ERR(&(qedf->dbg_ctx), "Session not offloaded yet.\n");
 		kref_put(&io_req->refcount, qedf_release_cmd);
+		return -EINVAL;
 	}
 
 	/* Obtain free SQE */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qedi/qedi_dbg.c linux-libre-5.1.21-gnu/drivers/scsi/qedi/qedi_dbg.c
--- linux-libre-5.1-gnu/drivers/scsi/qedi/qedi_dbg.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qedi/qedi_dbg.c	2019-07-28 02:28:39.000000000 -0400
@@ -16,10 +16,6 @@ qedi_dbg_err(struct qedi_dbg_ctx *qedi,
 {
 	va_list va;
 	struct va_format vaf;
-	char nfunc[32];
-
-	memset(nfunc, 0, sizeof(nfunc));
-	memcpy(nfunc, func, sizeof(nfunc) - 1);
 
 	va_start(va, fmt);
 
@@ -28,9 +24,9 @@ qedi_dbg_err(struct qedi_dbg_ctx *qedi,
 
 	if (likely(qedi) && likely(qedi->pdev))
 		pr_err("[%s]:[%s:%d]:%d: %pV", dev_name(&qedi->pdev->dev),
-		       nfunc, line, qedi->host_no, &vaf);
+		       func, line, qedi->host_no, &vaf);
 	else
-		pr_err("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+		pr_err("[0000:00:00.0]:[%s:%d]: %pV", func, line, &vaf);
 
 	va_end(va);
 }
@@ -41,10 +37,6 @@ qedi_dbg_warn(struct qedi_dbg_ctx *qedi,
 {
 	va_list va;
 	struct va_format vaf;
-	char nfunc[32];
-
-	memset(nfunc, 0, sizeof(nfunc));
-	memcpy(nfunc, func, sizeof(nfunc) - 1);
 
 	va_start(va, fmt);
 
@@ -56,9 +48,9 @@ qedi_dbg_warn(struct qedi_dbg_ctx *qedi,
 
 	if (likely(qedi) && likely(qedi->pdev))
 		pr_warn("[%s]:[%s:%d]:%d: %pV", dev_name(&qedi->pdev->dev),
-			nfunc, line, qedi->host_no, &vaf);
+			func, line, qedi->host_no, &vaf);
 	else
-		pr_warn("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+		pr_warn("[0000:00:00.0]:[%s:%d]: %pV", func, line, &vaf);
 
 ret:
 	va_end(va);
@@ -70,10 +62,6 @@ qedi_dbg_notice(struct qedi_dbg_ctx *qed
 {
 	va_list va;
 	struct va_format vaf;
-	char nfunc[32];
-
-	memset(nfunc, 0, sizeof(nfunc));
-	memcpy(nfunc, func, sizeof(nfunc) - 1);
 
 	va_start(va, fmt);
 
@@ -85,10 +73,10 @@ qedi_dbg_notice(struct qedi_dbg_ctx *qed
 
 	if (likely(qedi) && likely(qedi->pdev))
 		pr_notice("[%s]:[%s:%d]:%d: %pV",
-			  dev_name(&qedi->pdev->dev), nfunc, line,
+			  dev_name(&qedi->pdev->dev), func, line,
 			  qedi->host_no, &vaf);
 	else
-		pr_notice("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+		pr_notice("[0000:00:00.0]:[%s:%d]: %pV", func, line, &vaf);
 
 ret:
 	va_end(va);
@@ -100,10 +88,6 @@ qedi_dbg_info(struct qedi_dbg_ctx *qedi,
 {
 	va_list va;
 	struct va_format vaf;
-	char nfunc[32];
-
-	memset(nfunc, 0, sizeof(nfunc));
-	memcpy(nfunc, func, sizeof(nfunc) - 1);
 
 	va_start(va, fmt);
 
@@ -115,9 +99,9 @@ qedi_dbg_info(struct qedi_dbg_ctx *qedi,
 
 	if (likely(qedi) && likely(qedi->pdev))
 		pr_info("[%s]:[%s:%d]:%d: %pV", dev_name(&qedi->pdev->dev),
-			nfunc, line, qedi->host_no, &vaf);
+			func, line, qedi->host_no, &vaf);
 	else
-		pr_info("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+		pr_info("[0000:00:00.0]:[%s:%d]: %pV", func, line, &vaf);
 
 ret:
 	va_end(va);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qedi/qedi_iscsi.c linux-libre-5.1.21-gnu/drivers/scsi/qedi/qedi_iscsi.c
--- linux-libre-5.1-gnu/drivers/scsi/qedi/qedi_iscsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qedi/qedi_iscsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -809,8 +809,6 @@ qedi_ep_connect(struct Scsi_Host *shost,
 	struct qedi_endpoint *qedi_ep;
 	struct sockaddr_in *addr;
 	struct sockaddr_in6 *addr6;
-	struct qed_dev *cdev  =  NULL;
-	struct qedi_uio_dev *udev = NULL;
 	struct iscsi_path path_req;
 	u32 msg_type = ISCSI_KEVENT_IF_DOWN;
 	u32 iscsi_cid = QEDI_CID_RESERVED;
@@ -830,8 +828,6 @@ qedi_ep_connect(struct Scsi_Host *shost,
 	}
 
 	qedi = iscsi_host_priv(shost);
-	cdev = qedi->cdev;
-	udev = qedi->udev;
 
 	if (test_bit(QEDI_IN_OFFLINE, &qedi->flags) ||
 	    test_bit(QEDI_IN_RECOVERY, &qedi->flags)) {
@@ -1000,6 +996,9 @@ static void qedi_ep_disconnect(struct is
 	qedi_ep = ep->dd_data;
 	qedi = qedi_ep->qedi;
 
+	if (qedi_ep->state == EP_STATE_OFLDCONN_START)
+		goto ep_exit_recover;
+
 	flush_work(&qedi_ep->offload_work);
 
 	if (qedi_ep->conn) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qedi/qedi_main.c linux-libre-5.1.21-gnu/drivers/scsi/qedi/qedi_main.c
--- linux-libre-5.1-gnu/drivers/scsi/qedi/qedi_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qedi/qedi_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -990,6 +990,9 @@ static int qedi_find_boot_info(struct qe
 		if (!iscsi_is_session_online(cls_sess))
 			continue;
 
+		if (!sess->targetname)
+			continue;
+
 		if (pri_ctrl_flags) {
 			if (!strcmp(pri_tgt->iscsi_name, sess->targetname) &&
 			    !strcmp(pri_tgt->ip_addr, ep_ip_addr)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_attr.c linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_attr.c
--- linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_attr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_attr.c	2019-07-28 02:28:39.000000000 -0400
@@ -364,7 +364,7 @@ qla2x00_sysfs_write_optrom_ctl(struct fi
 		}
 
 		ha->optrom_region_start = start;
-		ha->optrom_region_size = start + size;
+		ha->optrom_region_size = size;
 
 		ha->optrom_state = QLA_SREADING;
 		ha->optrom_buffer = vmalloc(ha->optrom_region_size);
@@ -437,7 +437,7 @@ qla2x00_sysfs_write_optrom_ctl(struct fi
 		}
 
 		ha->optrom_region_start = start;
-		ha->optrom_region_size = start + size;
+		ha->optrom_region_size = size;
 
 		ha->optrom_state = QLA_SWRITING;
 		ha->optrom_buffer = vmalloc(ha->optrom_region_size);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_gs.c linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_gs.c
--- linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_gs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_gs.c	2019-07-28 02:28:39.000000000 -0400
@@ -3031,6 +3031,8 @@ static void qla24xx_async_gpsc_sp_done(v
 	    "Async done-%s res %x, WWPN %8phC \n",
 	    sp->name, res, fcport->port_name);
 
+	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
+
 	if (res == QLA_FUNCTION_TIMEOUT)
 		return;
 
@@ -4370,6 +4372,7 @@ int qla24xx_async_gnnid(scsi_qla_host_t
 
 done_free_sp:
 	sp->free(sp);
+	fcport->flags &= ~FCF_ASYNC_SENT;
 done:
 	return rval;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_isr.c linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_isr.c
--- linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_isr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_isr.c	2019-07-28 02:28:39.000000000 -0400
@@ -3475,7 +3475,7 @@ qla24xx_enable_msix(struct qla_hw_data *
 		ql_log(ql_log_fatal, vha, 0x00c8,
 		    "Failed to allocate memory for ha->msix_entries.\n");
 		ret = -ENOMEM;
-		goto msix_out;
+		goto free_irqs;
 	}
 	ha->flags.msix_enabled = 1;
 
@@ -3558,6 +3558,10 @@ msix_register_fail:
 
 msix_out:
 	return ret;
+
+free_irqs:
+	pci_free_irq_vectors(ha->pdev);
+	goto msix_out;
 }
 
 int
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_nvme.c linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_nvme.c
--- linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_nvme.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_nvme.c	2019-07-28 02:28:39.000000000 -0400
@@ -615,7 +615,6 @@ static void qla_nvme_unregister_remote_p
 	struct fc_port *fcport = container_of(work, struct fc_port,
 	    nvme_del_work);
 	struct qla_nvme_rport *qla_rport, *trport;
-	scsi_qla_host_t *base_vha;
 
 	if (!IS_ENABLED(CONFIG_NVME_FC))
 		return;
@@ -623,23 +622,19 @@ static void qla_nvme_unregister_remote_p
 	ql_log(ql_log_warn, NULL, 0x2112,
 	    "%s: unregister remoteport on %p\n",__func__, fcport);
 
-	base_vha = pci_get_drvdata(fcport->vha->hw->pdev);
-	if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) {
-		ql_dbg(ql_dbg_disc, fcport->vha, 0x2114,
-		    "%s: Notify FC-NVMe transport, set devloss=0\n",
-		    __func__);
-
-		nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
-	}
-
 	list_for_each_entry_safe(qla_rport, trport,
 	    &fcport->vha->nvme_rport_list, list) {
 		if (qla_rport->fcport == fcport) {
 			ql_log(ql_log_info, fcport->vha, 0x2113,
 			    "%s: fcport=%p\n", __func__, fcport);
+			nvme_fc_set_remoteport_devloss
+				(fcport->nvme_remote_port, 0);
 			init_completion(&fcport->nvme_del_done);
-			nvme_fc_unregister_remoteport(
-			    fcport->nvme_remote_port);
+			if (nvme_fc_unregister_remoteport
+			    (fcport->nvme_remote_port))
+				ql_log(ql_log_info, fcport->vha, 0x2114,
+				    "%s: Failed to unregister nvme_remote_port\n",
+				    __func__);
 			wait_for_completion(&fcport->nvme_del_done);
 			break;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_os.c linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_os.c
--- linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_os.c	2019-05-05 21:44:09.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_os.c	2019-07-28 13:48:57.000000000 -0400
@@ -6838,6 +6838,78 @@ qla2x00_release_firmware(void)
 	mutex_unlock(&qla_fw_lock);
 }
 
+static void qla_pci_error_cleanup(scsi_qla_host_t *vha)
+{
+	struct qla_hw_data *ha = vha->hw;
+	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
+	struct qla_qpair *qpair = NULL;
+	struct scsi_qla_host *vp;
+	fc_port_t *fcport;
+	int i;
+	unsigned long flags;
+
+	ha->chip_reset++;
+
+	ha->base_qpair->chip_reset = ha->chip_reset;
+	for (i = 0; i < ha->max_qpairs; i++) {
+		if (ha->queue_pair_map[i])
+			ha->queue_pair_map[i]->chip_reset =
+			    ha->base_qpair->chip_reset;
+	}
+
+	/* purge MBox commands */
+	if (atomic_read(&ha->num_pend_mbx_stage3)) {
+		clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
+		complete(&ha->mbx_intr_comp);
+	}
+
+	i = 0;
+
+	while (atomic_read(&ha->num_pend_mbx_stage3) ||
+	    atomic_read(&ha->num_pend_mbx_stage2) ||
+	    atomic_read(&ha->num_pend_mbx_stage1)) {
+		msleep(20);
+		i++;
+		if (i > 50)
+			break;
+	}
+
+	ha->flags.purge_mbox = 0;
+
+	mutex_lock(&ha->mq_lock);
+	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
+		qpair->online = 0;
+	mutex_unlock(&ha->mq_lock);
+
+	qla2x00_mark_all_devices_lost(vha, 0);
+
+	spin_lock_irqsave(&ha->vport_slock, flags);
+	list_for_each_entry(vp, &ha->vp_list, list) {
+		atomic_inc(&vp->vref_count);
+		spin_unlock_irqrestore(&ha->vport_slock, flags);
+		qla2x00_mark_all_devices_lost(vp, 0);
+		spin_lock_irqsave(&ha->vport_slock, flags);
+		atomic_dec(&vp->vref_count);
+	}
+	spin_unlock_irqrestore(&ha->vport_slock, flags);
+
+	/* Clear all async request states across all VPs. */
+	list_for_each_entry(fcport, &vha->vp_fcports, list)
+		fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
+
+	spin_lock_irqsave(&ha->vport_slock, flags);
+	list_for_each_entry(vp, &ha->vp_list, list) {
+		atomic_inc(&vp->vref_count);
+		spin_unlock_irqrestore(&ha->vport_slock, flags);
+		list_for_each_entry(fcport, &vp->vp_fcports, list)
+			fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
+		spin_lock_irqsave(&ha->vport_slock, flags);
+		atomic_dec(&vp->vref_count);
+	}
+	spin_unlock_irqrestore(&ha->vport_slock, flags);
+}
+
+
 static pci_ers_result_t
 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
 {
@@ -6863,20 +6935,7 @@ qla2xxx_pci_error_detected(struct pci_de
 		return PCI_ERS_RESULT_CAN_RECOVER;
 	case pci_channel_io_frozen:
 		ha->flags.eeh_busy = 1;
-		/* For ISP82XX complete any pending mailbox cmd */
-		if (IS_QLA82XX(ha)) {
-			ha->flags.isp82xx_fw_hung = 1;
-			ql_dbg(ql_dbg_aer, vha, 0x9001, "Pci channel io frozen\n");
-			qla82xx_clear_pending_mbx(vha);
-		}
-		qla2x00_free_irqs(vha);
-		pci_disable_device(pdev);
-		/* Return back all IOs */
-		qla2x00_abort_all_cmds(vha, DID_RESET << 16);
-		if (ql2xmqsupport || ql2xnvmeenable) {
-			set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
-			qla2xxx_wake_dpc(vha);
-		}
+		qla_pci_error_cleanup(vha);
 		return PCI_ERS_RESULT_NEED_RESET;
 	case pci_channel_io_perm_failure:
 		ha->flags.pci_channel_io_perm_failure = 1;
@@ -6930,122 +6989,14 @@ qla2xxx_pci_mmio_enabled(struct pci_dev
 		return PCI_ERS_RESULT_RECOVERED;
 }
 
-static uint32_t
-qla82xx_error_recovery(scsi_qla_host_t *base_vha)
-{
-	uint32_t rval = QLA_FUNCTION_FAILED;
-	uint32_t drv_active = 0;
-	struct qla_hw_data *ha = base_vha->hw;
-	int fn;
-	struct pci_dev *other_pdev = NULL;
-
-	ql_dbg(ql_dbg_aer, base_vha, 0x9006,
-	    "Entered %s.\n", __func__);
-
-	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
-
-	if (base_vha->flags.online) {
-		/* Abort all outstanding commands,
-		 * so as to be requeued later */
-		qla2x00_abort_isp_cleanup(base_vha);
-	}
-
-
-	fn = PCI_FUNC(ha->pdev->devfn);
-	while (fn > 0) {
-		fn--;
-		ql_dbg(ql_dbg_aer, base_vha, 0x9007,
-		    "Finding pci device at function = 0x%x.\n", fn);
-		other_pdev =
-		    pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus),
-		    ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn),
-		    fn));
-
-		if (!other_pdev)
-			continue;
-		if (atomic_read(&other_pdev->enable_cnt)) {
-			ql_dbg(ql_dbg_aer, base_vha, 0x9008,
-			    "Found PCI func available and enable at 0x%x.\n",
-			    fn);
-			pci_dev_put(other_pdev);
-			break;
-		}
-		pci_dev_put(other_pdev);
-	}
-
-	if (!fn) {
-		/* Reset owner */
-		ql_dbg(ql_dbg_aer, base_vha, 0x9009,
-		    "This devfn is reset owner = 0x%x.\n",
-		    ha->pdev->devfn);
-		qla82xx_idc_lock(ha);
-
-		qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-		    QLA8XXX_DEV_INITIALIZING);
-
-		qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
-		    QLA82XX_IDC_VERSION);
-
-		drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
-		ql_dbg(ql_dbg_aer, base_vha, 0x900a,
-		    "drv_active = 0x%x.\n", drv_active);
-
-		qla82xx_idc_unlock(ha);
-		/* Reset if device is not already reset
-		 * drv_active would be 0 if a reset has already been done
-		 */
-		if (drv_active)
-			rval = qla82xx_start_firmware(base_vha);
-		else
-			rval = QLA_SUCCESS;
-		qla82xx_idc_lock(ha);
-
-		if (rval != QLA_SUCCESS) {
-			ql_log(ql_log_info, base_vha, 0x900b,
-			    "HW State: FAILED.\n");
-			qla82xx_clear_drv_active(ha);
-			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA8XXX_DEV_FAILED);
-		} else {
-			ql_log(ql_log_info, base_vha, 0x900c,
-			    "HW State: READY.\n");
-			qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
-			    QLA8XXX_DEV_READY);
-			qla82xx_idc_unlock(ha);
-			ha->flags.isp82xx_fw_hung = 0;
-			rval = qla82xx_restart_isp(base_vha);
-			qla82xx_idc_lock(ha);
-			/* Clear driver state register */
-			qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0);
-			qla82xx_set_drv_active(base_vha);
-		}
-		qla82xx_idc_unlock(ha);
-	} else {
-		ql_dbg(ql_dbg_aer, base_vha, 0x900d,
-		    "This devfn is not reset owner = 0x%x.\n",
-		    ha->pdev->devfn);
-		if ((qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
-		    QLA8XXX_DEV_READY)) {
-			ha->flags.isp82xx_fw_hung = 0;
-			rval = qla82xx_restart_isp(base_vha);
-			qla82xx_idc_lock(ha);
-			qla82xx_set_drv_active(base_vha);
-			qla82xx_idc_unlock(ha);
-		}
-	}
-	clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
-
-	return rval;
-}
-
 static pci_ers_result_t
 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
 {
 	pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
 	scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
 	struct qla_hw_data *ha = base_vha->hw;
-	struct rsp_que *rsp;
-	int rc, retries = 10;
+	int rc;
+	struct qla_qpair *qpair = NULL;
 
 	ql_dbg(ql_dbg_aer, base_vha, 0x9004,
 	    "Slot Reset.\n");
@@ -7074,24 +7025,16 @@ qla2xxx_pci_slot_reset(struct pci_dev *p
 		goto exit_slot_reset;
 	}
 
-	rsp = ha->rsp_q_map[0];
-	if (qla2x00_request_irqs(ha, rsp))
-		goto exit_slot_reset;
 
 	if (ha->isp_ops->pci_config(base_vha))
 		goto exit_slot_reset;
 
-	if (IS_QLA82XX(ha)) {
-		if (qla82xx_error_recovery(base_vha) == QLA_SUCCESS) {
-			ret = PCI_ERS_RESULT_RECOVERED;
-			goto exit_slot_reset;
-		} else
-			goto exit_slot_reset;
-	}
-
-	while (ha->flags.mbox_busy && retries--)
-		msleep(1000);
+	mutex_lock(&ha->mq_lock);
+	list_for_each_entry(qpair, &base_vha->qp_list, qp_list_elem)
+		qpair->online = 1;
+	mutex_unlock(&ha->mq_lock);
 
+	base_vha->flags.online = 1;
 	set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
 	if (ha->isp_ops->abort_isp(base_vha) == QLA_SUCCESS)
 		ret =  PCI_ERS_RESULT_RECOVERED;
@@ -7115,13 +7058,13 @@ qla2xxx_pci_resume(struct pci_dev *pdev)
 	ql_dbg(ql_dbg_aer, base_vha, 0x900f,
 	    "pci_resume.\n");
 
+	ha->flags.eeh_busy = 0;
+
 	ret = qla2x00_wait_for_hba_online(base_vha);
 	if (ret != QLA_SUCCESS) {
 		ql_log(ql_log_fatal, base_vha, 0x9002,
 		    "The device failed to resume I/O from slot/link_reset.\n");
 	}
-
-	ha->flags.eeh_busy = 0;
 }
 
 static void
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_target.c linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_target.c
--- linux-libre-5.1-gnu/drivers/scsi/qla2xxx/qla_target.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/qla_target.c	2019-07-28 02:28:39.000000000 -0400
@@ -680,7 +680,6 @@ done:
 void qla24xx_do_nack_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
 {
 	fc_port_t *t;
-	unsigned long flags;
 
 	switch (e->u.nack.type) {
 	case SRB_NACK_PRLI:
@@ -693,10 +692,8 @@ void qla24xx_do_nack_work(struct scsi_ql
 		if (t) {
 			ql_log(ql_log_info, vha, 0xd034,
 			    "%s create sess success %p", __func__, t);
-			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
 			/* create sess has an extra kref */
 			vha->hw->tgt.tgt_ops->put_sess(e->u.nack.fcport);
-			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 		}
 		break;
 	}
@@ -708,9 +705,6 @@ void qla24xx_delete_sess_fn(struct work_
 {
 	fc_port_t *fcport = container_of(work, struct fc_port, del_work);
 	struct qla_hw_data *ha = fcport->vha->hw;
-	unsigned long flags;
-
-	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
 
 	if (fcport->se_sess) {
 		ha->tgt.tgt_ops->shutdown_sess(fcport);
@@ -718,7 +712,6 @@ void qla24xx_delete_sess_fn(struct work_
 	} else {
 		qlt_unreg_sess(fcport);
 	}
-	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 }
 
 /*
@@ -787,8 +780,9 @@ void qlt_fc_port_added(struct scsi_qla_h
 		    fcport->port_name, sess->loop_id);
 		sess->local = 0;
 	}
-	ha->tgt.tgt_ops->put_sess(sess);
 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
+
+	ha->tgt.tgt_ops->put_sess(sess);
 }
 
 /*
@@ -980,6 +974,8 @@ void qlt_free_session_done(struct work_s
 		sess->send_els_logo);
 
 	if (!IS_SW_RESV_ADDR(sess->d_id)) {
+		qla2x00_mark_device_lost(vha, sess, 0, 0);
+
 		if (sess->send_els_logo) {
 			qlt_port_logo_t logo;
 
@@ -1160,8 +1156,6 @@ void qlt_unreg_sess(struct fc_port *sess
 	if (sess->se_sess)
 		vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
 
-	qla2x00_mark_device_lost(vha, sess, 0, 0);
-
 	sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
 	sess->disc_state = DSC_DELETE_PEND;
 	sess->last_rscn_gen = sess->rscn_gen;
@@ -4242,9 +4236,7 @@ static void __qlt_do_work(struct qla_tgt
 	/*
 	 * Drop extra session reference from qla_tgt_handle_cmd_for_atio*(
 	 */
-	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
 	ha->tgt.tgt_ops->put_sess(sess);
-	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 	return;
 
 out_term:
@@ -4261,9 +4253,7 @@ out_term:
 	target_free_tag(sess->se_sess, &cmd->se_cmd);
 	spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
 
-	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
 	ha->tgt.tgt_ops->put_sess(sess);
-	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 }
 
 static void qlt_do_work(struct work_struct *work)
@@ -4472,9 +4462,7 @@ static int qlt_handle_cmd_for_atio(struc
 	if (!cmd) {
 		ql_dbg(ql_dbg_io, vha, 0x3062,
 		    "qla_target(%d): Allocation of cmd failed\n", vha->vp_idx);
-		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
 		ha->tgt.tgt_ops->put_sess(sess);
-		spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 		return -EBUSY;
 	}
 
@@ -6318,17 +6306,19 @@ static void qlt_abort_work(struct qla_tg
 	}
 
 	rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess);
-	ha->tgt.tgt_ops->put_sess(sess);
 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
 
+	ha->tgt.tgt_ops->put_sess(sess);
+
 	if (rc != 0)
 		goto out_term;
 	return;
 
 out_term2:
+	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
+
 	if (sess)
 		ha->tgt.tgt_ops->put_sess(sess);
-	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2);
 
 out_term:
 	spin_lock_irqsave(&ha->hardware_lock, flags);
@@ -6386,9 +6376,10 @@ static void qlt_tmr_work(struct qla_tgt
 	    scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
 
 	rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
-	ha->tgt.tgt_ops->put_sess(sess);
 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 
+	ha->tgt.tgt_ops->put_sess(sess);
+
 	if (rc != 0)
 		goto out_term;
 	return;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qla2xxx/tcm_qla2xxx.c linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/tcm_qla2xxx.c
--- linux-libre-5.1-gnu/drivers/scsi/qla2xxx/tcm_qla2xxx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qla2xxx/tcm_qla2xxx.c	2019-07-28 02:28:39.000000000 -0400
@@ -359,7 +359,6 @@ static void tcm_qla2xxx_put_sess(struct
 	if (!sess)
 		return;
 
-	assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
 	kref_put(&sess->sess_kref, tcm_qla2xxx_release_session);
 }
 
@@ -374,8 +373,9 @@ static void tcm_qla2xxx_close_session(st
 
 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
 	target_sess_cmd_list_set_waiting(se_sess);
-	tcm_qla2xxx_put_sess(sess);
 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+
+	tcm_qla2xxx_put_sess(sess);
 }
 
 static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
@@ -399,6 +399,8 @@ static int tcm_qla2xxx_write_pending(str
 			cmd->se_cmd.transport_state,
 			cmd->se_cmd.t_state,
 			cmd->se_cmd.se_cmd_flags);
+		transport_generic_request_failure(&cmd->se_cmd,
+			TCM_CHECK_CONDITION_ABORT_CMD);
 		return 0;
 	}
 	cmd->trc_flags |= TRC_XFR_RDY;
@@ -829,7 +831,6 @@ static void tcm_qla2xxx_clear_nacl_from_
 
 static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
 {
-	assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
 	target_sess_cmd_list_set_waiting(sess->se_sess);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/qla4xxx/ql4_os.c linux-libre-5.1.21-gnu/drivers/scsi/qla4xxx/ql4_os.c
--- linux-libre-5.1-gnu/drivers/scsi/qla4xxx/ql4_os.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/qla4xxx/ql4_os.c	2019-07-28 02:28:39.000000000 -0400
@@ -5930,7 +5930,7 @@ static int get_fw_boot_info(struct scsi_
 		val = rd_nvram_byte(ha, sec_addr);
 		if (val & BIT_7)
 			ddb_index[1] = (val & 0x7f);
-
+		goto exit_boot_info;
 	} else if (is_qla80XX(ha)) {
 		buf = dma_alloc_coherent(&ha->pdev->dev, size,
 					 &buf_dma, GFP_KERNEL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/scsi_lib.c linux-libre-5.1.21-gnu/drivers/scsi/scsi_lib.c
--- linux-libre-5.1-gnu/drivers/scsi/scsi_lib.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/scsi_lib.c	2019-07-28 02:28:39.000000000 -0400
@@ -71,11 +71,11 @@ int scsi_init_sense_cache(struct Scsi_Ho
 	struct kmem_cache *cache;
 	int ret = 0;
 
+	mutex_lock(&scsi_sense_cache_mutex);
 	cache = scsi_select_sense_cache(shost->unchecked_isa_dma);
 	if (cache)
-		return 0;
+		goto exit;
 
-	mutex_lock(&scsi_sense_cache_mutex);
 	if (shost->unchecked_isa_dma) {
 		scsi_sense_isadma_cache =
 			kmem_cache_create("scsi_sense_cache(DMA)",
@@ -91,7 +91,7 @@ int scsi_init_sense_cache(struct Scsi_Ho
 		if (!scsi_sense_cache)
 			ret = -ENOMEM;
 	}
-
+ exit:
 	mutex_unlock(&scsi_sense_cache_mutex);
 	return ret;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/sd.c linux-libre-5.1.21-gnu/drivers/scsi/sd.c
--- linux-libre-5.1-gnu/drivers/scsi/sd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/sd.c	2019-07-28 02:28:39.000000000 -0400
@@ -2603,7 +2603,6 @@ sd_read_write_protect_flag(struct scsi_d
 	int res;
 	struct scsi_device *sdp = sdkp->device;
 	struct scsi_mode_data data;
-	int disk_ro = get_disk_ro(sdkp->disk);
 	int old_wp = sdkp->write_prot;
 
 	set_disk_ro(sdkp->disk, 0);
@@ -2644,7 +2643,7 @@ sd_read_write_protect_flag(struct scsi_d
 			  "Test WP failed, assume Write Enabled\n");
 	} else {
 		sdkp->write_prot = ((data.device_specific & 0x80) != 0);
-		set_disk_ro(sdkp->disk, sdkp->write_prot || disk_ro);
+		set_disk_ro(sdkp->disk, sdkp->write_prot);
 		if (sdkp->first_scan || old_wp != sdkp->write_prot) {
 			sd_printk(KERN_NOTICE, sdkp, "Write Protect is %s\n",
 				  sdkp->write_prot ? "on" : "off");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/sd_zbc.c linux-libre-5.1.21-gnu/drivers/scsi/sd_zbc.c
--- linux-libre-5.1-gnu/drivers/scsi/sd_zbc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/sd_zbc.c	2019-07-28 02:28:39.000000000 -0400
@@ -23,6 +23,8 @@
  */
 
 #include <linux/blkdev.h>
+#include <linux/vmalloc.h>
+#include <linux/sched/mm.h>
 
 #include <asm/unaligned.h>
 
@@ -64,7 +66,7 @@ static void sd_zbc_parse_report(struct s
 /**
  * sd_zbc_do_report_zones - Issue a REPORT ZONES scsi command.
  * @sdkp: The target disk
- * @buf: Buffer to use for the reply
+ * @buf: vmalloc-ed buffer to use for the reply
  * @buflen: the buffer size
  * @lba: Start LBA of the report
  * @partial: Do partial report
@@ -93,7 +95,6 @@ static int sd_zbc_do_report_zones(struct
 	put_unaligned_be32(buflen, &cmd[10]);
 	if (partial)
 		cmd[14] = ZBC_REPORT_ZONE_PARTIAL;
-	memset(buf, 0, buflen);
 
 	result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE,
 				  buf, buflen, &sshdr,
@@ -117,6 +118,53 @@ static int sd_zbc_do_report_zones(struct
 	return 0;
 }
 
+/*
+ * Maximum number of zones to get with one report zones command.
+ */
+#define SD_ZBC_REPORT_MAX_ZONES		8192U
+
+/**
+ * Allocate a buffer for report zones reply.
+ * @sdkp: The target disk
+ * @nr_zones: Maximum number of zones to report
+ * @buflen: Size of the buffer allocated
+ *
+ * Try to allocate a reply buffer for the number of requested zones.
+ * The size of the buffer allocated may be smaller than requested to
+ * satify the device constraint (max_hw_sectors, max_segments, etc).
+ *
+ * Return the address of the allocated buffer and update @buflen with
+ * the size of the allocated buffer.
+ */
+static void *sd_zbc_alloc_report_buffer(struct scsi_disk *sdkp,
+					unsigned int nr_zones, size_t *buflen)
+{
+	struct request_queue *q = sdkp->disk->queue;
+	size_t bufsize;
+	void *buf;
+
+	/*
+	 * Report zone buffer size should be at most 64B times the number of
+	 * zones requested plus the 64B reply header, but should be at least
+	 * SECTOR_SIZE for ATA devices.
+	 * Make sure that this size does not exceed the hardware capabilities.
+	 * Furthermore, since the report zone command cannot be split, make
+	 * sure that the allocated buffer can always be mapped by limiting the
+	 * number of pages allocated to the HBA max segments limit.
+	 */
+	nr_zones = min(nr_zones, SD_ZBC_REPORT_MAX_ZONES);
+	bufsize = roundup((nr_zones + 1) * 64, 512);
+	bufsize = min_t(size_t, bufsize,
+			queue_max_hw_sectors(q) << SECTOR_SHIFT);
+	bufsize = min_t(size_t, bufsize, queue_max_segments(q) << PAGE_SHIFT);
+
+	buf = vzalloc(bufsize);
+	if (buf)
+		*buflen = bufsize;
+
+	return buf;
+}
+
 /**
  * sd_zbc_report_zones - Disk report zones operation.
  * @disk: The target disk
@@ -132,30 +180,23 @@ int sd_zbc_report_zones(struct gendisk *
 			gfp_t gfp_mask)
 {
 	struct scsi_disk *sdkp = scsi_disk(disk);
-	unsigned int i, buflen, nrz = *nr_zones;
+	unsigned int i, nrz = *nr_zones;
 	unsigned char *buf;
-	size_t offset = 0;
+	size_t buflen = 0, offset = 0;
 	int ret = 0;
 
 	if (!sd_is_zoned(sdkp))
 		/* Not a zoned device */
 		return -EOPNOTSUPP;
 
-	/*
-	 * Get a reply buffer for the number of requested zones plus a header,
-	 * without exceeding the device maximum command size. For ATA disks,
-	 * buffers must be aligned to 512B.
-	 */
-	buflen = min(queue_max_hw_sectors(disk->queue) << 9,
-		     roundup((nrz + 1) * 64, 512));
-	buf = kmalloc(buflen, gfp_mask);
+	buf = sd_zbc_alloc_report_buffer(sdkp, nrz, &buflen);
 	if (!buf)
 		return -ENOMEM;
 
 	ret = sd_zbc_do_report_zones(sdkp, buf, buflen,
 			sectors_to_logical(sdkp->device, sector), true);
 	if (ret)
-		goto out_free_buf;
+		goto out;
 
 	nrz = min(nrz, get_unaligned_be32(&buf[0]) / 64);
 	for (i = 0; i < nrz; i++) {
@@ -166,8 +207,8 @@ int sd_zbc_report_zones(struct gendisk *
 
 	*nr_zones = nrz;
 
-out_free_buf:
-	kfree(buf);
+out:
+	kvfree(buf);
 
 	return ret;
 }
@@ -301,8 +342,6 @@ static int sd_zbc_check_zoned_characteri
 	return 0;
 }
 
-#define SD_ZBC_BUF_SIZE 131072U
-
 /**
  * sd_zbc_check_zones - Check the device capacity and zone sizes
  * @sdkp: Target disk
@@ -318,22 +357,28 @@ static int sd_zbc_check_zoned_characteri
  */
 static int sd_zbc_check_zones(struct scsi_disk *sdkp, u32 *zblocks)
 {
+	size_t bufsize, buflen;
+	unsigned int noio_flag;
 	u64 zone_blocks = 0;
 	sector_t max_lba, block = 0;
 	unsigned char *buf;
 	unsigned char *rec;
-	unsigned int buf_len;
-	unsigned int list_length;
 	int ret;
 	u8 same;
 
+	/* Do all memory allocations as if GFP_NOIO was specified */
+	noio_flag = memalloc_noio_save();
+
 	/* Get a buffer */
-	buf = kmalloc(SD_ZBC_BUF_SIZE, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
+	buf = sd_zbc_alloc_report_buffer(sdkp, SD_ZBC_REPORT_MAX_ZONES,
+					 &bufsize);
+	if (!buf) {
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	/* Do a report zone to get max_lba and the same field */
-	ret = sd_zbc_do_report_zones(sdkp, buf, SD_ZBC_BUF_SIZE, 0, false);
+	ret = sd_zbc_do_report_zones(sdkp, buf, bufsize, 0, false);
 	if (ret)
 		goto out_free;
 
@@ -369,12 +414,12 @@ static int sd_zbc_check_zones(struct scs
 	do {
 
 		/* Parse REPORT ZONES header */
-		list_length = get_unaligned_be32(&buf[0]) + 64;
+		buflen = min_t(size_t, get_unaligned_be32(&buf[0]) + 64,
+			       bufsize);
 		rec = buf + 64;
-		buf_len = min(list_length, SD_ZBC_BUF_SIZE);
 
 		/* Parse zone descriptors */
-		while (rec < buf + buf_len) {
+		while (rec < buf + buflen) {
 			u64 this_zone_blocks = get_unaligned_be64(&rec[8]);
 
 			if (zone_blocks == 0) {
@@ -390,8 +435,8 @@ static int sd_zbc_check_zones(struct scs
 		}
 
 		if (block < sdkp->capacity) {
-			ret = sd_zbc_do_report_zones(sdkp, buf, SD_ZBC_BUF_SIZE,
-						     block, true);
+			ret = sd_zbc_do_report_zones(sdkp, buf, bufsize, block,
+						     true);
 			if (ret)
 				goto out_free;
 		}
@@ -422,7 +467,8 @@ out:
 	}
 
 out_free:
-	kfree(buf);
+	memalloc_noio_restore(noio_flag);
+	kvfree(buf);
 
 	return ret;
 }
@@ -431,7 +477,7 @@ int sd_zbc_read_zones(struct scsi_disk *
 {
 	struct gendisk *disk = sdkp->disk;
 	unsigned int nr_zones;
-	u32 zone_blocks;
+	u32 zone_blocks = 0;
 	int ret;
 
 	if (!sd_is_zoned(sdkp))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/smartpqi/smartpqi_init.c linux-libre-5.1.21-gnu/drivers/scsi/smartpqi/smartpqi_init.c
--- linux-libre-5.1-gnu/drivers/scsi/smartpqi/smartpqi_init.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/smartpqi/smartpqi_init.c	2019-07-28 02:28:39.000000000 -0400
@@ -4044,8 +4044,10 @@ static int pqi_submit_raid_request_synch
 				return -ETIMEDOUT;
 			msecs_blocked =
 				jiffies_to_msecs(jiffies - start_jiffies);
-			if (msecs_blocked >= timeout_msecs)
-				return -ETIMEDOUT;
+			if (msecs_blocked >= timeout_msecs) {
+				rc = -ETIMEDOUT;
+				goto out;
+			}
 			timeout_msecs -= msecs_blocked;
 		}
 	}
@@ -7285,7 +7287,7 @@ static int pqi_pci_init(struct pqi_ctrl_
 	else
 		mask = DMA_BIT_MASK(32);
 
-	rc = dma_set_mask(&ctrl_info->pci_dev->dev, mask);
+	rc = dma_set_mask_and_coherent(&ctrl_info->pci_dev->dev, mask);
 	if (rc) {
 		dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n");
 		goto disable_device;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/ufs/ufshcd.c linux-libre-5.1.21-gnu/drivers/scsi/ufs/ufshcd.c
--- linux-libre-5.1-gnu/drivers/scsi/ufs/ufshcd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/ufs/ufshcd.c	2019-07-28 02:28:39.000000000 -0400
@@ -1917,7 +1917,8 @@ int ufshcd_copy_query_response(struct uf
 	memcpy(&query_res->upiu_res, &lrbp->ucd_rsp_ptr->qr, QUERY_OSF_SIZE);
 
 	/* Get the descriptor */
-	if (lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) {
+	if (hba->dev_cmd.query.descriptor &&
+	    lrbp->ucd_rsp_ptr->qr.opcode == UPIU_QUERY_OPCODE_READ_DESC) {
 		u8 *descp = (u8 *)lrbp->ucd_rsp_ptr +
 				GENERAL_UPIU_REQUEST_SIZE;
 		u16 resp_len;
@@ -6294,19 +6295,19 @@ static u32 ufshcd_find_max_sup_active_ic
 		goto out;
 	}
 
-	if (hba->vreg_info.vcc)
+	if (hba->vreg_info.vcc && hba->vreg_info.vcc->max_uA)
 		icc_level = ufshcd_get_max_icc_level(
 				hba->vreg_info.vcc->max_uA,
 				POWER_DESC_MAX_ACTV_ICC_LVLS - 1,
 				&desc_buf[PWR_DESC_ACTIVE_LVLS_VCC_0]);
 
-	if (hba->vreg_info.vccq)
+	if (hba->vreg_info.vccq && hba->vreg_info.vccq->max_uA)
 		icc_level = ufshcd_get_max_icc_level(
 				hba->vreg_info.vccq->max_uA,
 				icc_level,
 				&desc_buf[PWR_DESC_ACTIVE_LVLS_VCCQ_0]);
 
-	if (hba->vreg_info.vccq2)
+	if (hba->vreg_info.vccq2 && hba->vreg_info.vccq2->max_uA)
 		icc_level = ufshcd_get_max_icc_level(
 				hba->vreg_info.vccq2->max_uA,
 				icc_level,
@@ -7004,6 +7005,15 @@ static int ufshcd_config_vreg_load(struc
 	if (!vreg)
 		return 0;
 
+	/*
+	 * "set_load" operation shall be required on those regulators
+	 * which specifically configured current limitation. Otherwise
+	 * zero max_uA may cause unexpected behavior when regulator is
+	 * enabled or set as high power mode.
+	 */
+	if (!vreg->max_uA)
+		return 0;
+
 	ret = regulator_set_load(vreg->reg, ua);
 	if (ret < 0) {
 		dev_err(dev, "%s: %s set load (ua=%d) failed, err=%d\n",
@@ -7039,12 +7049,15 @@ static int ufshcd_config_vreg(struct dev
 	name = vreg->name;
 
 	if (regulator_count_voltages(reg) > 0) {
-		min_uV = on ? vreg->min_uV : 0;
-		ret = regulator_set_voltage(reg, min_uV, vreg->max_uV);
-		if (ret) {
-			dev_err(dev, "%s: %s set voltage failed, err=%d\n",
+		if (vreg->min_uV && vreg->max_uV) {
+			min_uV = on ? vreg->min_uV : 0;
+			ret = regulator_set_voltage(reg, min_uV, vreg->max_uV);
+			if (ret) {
+				dev_err(dev,
+					"%s: %s set voltage failed, err=%d\n",
 					__func__, name, ret);
-			goto out;
+				goto out;
+			}
 		}
 
 		uA_load = on ? vreg->max_uA : 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/ufs/ufshcd-pltfrm.c linux-libre-5.1.21-gnu/drivers/scsi/ufs/ufshcd-pltfrm.c
--- linux-libre-5.1-gnu/drivers/scsi/ufs/ufshcd-pltfrm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/ufs/ufshcd-pltfrm.c	2019-07-28 02:28:39.000000000 -0400
@@ -340,24 +340,21 @@ int ufshcd_pltfrm_init(struct platform_d
 		goto dealloc_host;
 	}
 
-	pm_runtime_set_active(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
-
 	ufshcd_init_lanes_per_dir(hba);
 
 	err = ufshcd_init(hba, mmio_base, irq);
 	if (err) {
 		dev_err(dev, "Initialization failed\n");
-		goto out_disable_rpm;
+		goto dealloc_host;
 	}
 
 	platform_set_drvdata(pdev, hba);
 
+	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
 	return 0;
 
-out_disable_rpm:
-	pm_runtime_disable(&pdev->dev);
-	pm_runtime_set_suspended(&pdev->dev);
 dealloc_host:
 	ufshcd_dealloc_host(hba);
 out:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/ufs/ufs-hisi.c linux-libre-5.1.21-gnu/drivers/scsi/ufs/ufs-hisi.c
--- linux-libre-5.1-gnu/drivers/scsi/ufs/ufs-hisi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/ufs/ufs-hisi.c	2019-07-28 02:28:39.000000000 -0400
@@ -587,6 +587,10 @@ static int ufs_hisi_init_common(struct u
 	ufshcd_set_variant(hba, host);
 
 	host->rst  = devm_reset_control_get(dev, "rst");
+	if (IS_ERR(host->rst)) {
+		dev_err(dev, "%s: failed to get reset control\n", __func__);
+		return PTR_ERR(host->rst);
+	}
 
 	ufs_hisi_set_pm_lvl(hba);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/scsi/vmw_pvscsi.c linux-libre-5.1.21-gnu/drivers/scsi/vmw_pvscsi.c
--- linux-libre-5.1-gnu/drivers/scsi/vmw_pvscsi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/scsi/vmw_pvscsi.c	2019-07-28 02:28:39.000000000 -0400
@@ -763,6 +763,7 @@ static int pvscsi_queue_lck(struct scsi_
 	struct pvscsi_adapter *adapter = shost_priv(host);
 	struct pvscsi_ctx *ctx;
 	unsigned long flags;
+	unsigned char op;
 
 	spin_lock_irqsave(&adapter->hw_lock, flags);
 
@@ -775,13 +776,14 @@ static int pvscsi_queue_lck(struct scsi_
 	}
 
 	cmd->scsi_done = done;
+	op = cmd->cmnd[0];
 
 	dev_dbg(&cmd->device->sdev_gendev,
-		"queued cmd %p, ctx %p, op=%x\n", cmd, ctx, cmd->cmnd[0]);
+		"queued cmd %p, ctx %p, op=%x\n", cmd, ctx, op);
 
 	spin_unlock_irqrestore(&adapter->hw_lock, flags);
 
-	pvscsi_kick_io(adapter, cmd->cmnd[0]);
+	pvscsi_kick_io(adapter, op);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/slimbus/qcom-ngd-ctrl.c linux-libre-5.1.21-gnu/drivers/slimbus/qcom-ngd-ctrl.c
--- linux-libre-5.1-gnu/drivers/slimbus/qcom-ngd-ctrl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/slimbus/qcom-ngd-ctrl.c	2019-07-28 02:28:39.000000000 -0400
@@ -1342,6 +1342,10 @@ static int of_qcom_slim_ngd_register(str
 			return -ENOMEM;
 
 		ngd->pdev = platform_device_alloc(QCOM_SLIM_NGD_DRV_NAME, id);
+		if (!ngd->pdev) {
+			kfree(ngd);
+			return -ENOMEM;
+		}
 		ngd->id = id;
 		ngd->pdev->dev.parent = parent;
 		ngd->pdev->driver_override = QCOM_SLIM_NGD_DRV_NAME;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/soc/bcm/brcmstb/biuctrl.c linux-libre-5.1.21-gnu/drivers/soc/bcm/brcmstb/biuctrl.c
--- linux-libre-5.1-gnu/drivers/soc/bcm/brcmstb/biuctrl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/soc/bcm/brcmstb/biuctrl.c	2019-07-28 02:28:39.000000000 -0400
@@ -56,7 +56,7 @@ static inline void cbc_writel(u32 val, i
 	if (offset == -1)
 		return;
 
-	writel_relaxed(val,  cpubiuctrl_base + offset);
+	writel(val, cpubiuctrl_base + offset);
 }
 
 enum cpubiuctrl_regs {
@@ -246,7 +246,9 @@ static int __init brcmstb_biuctrl_init(v
 	if (!np)
 		return 0;
 
-	setup_hifcpubiuctrl_regs(np);
+	ret = setup_hifcpubiuctrl_regs(np);
+	if (ret)
+		return ret;
 
 	ret = mcp_write_pairing_set();
 	if (ret) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/soc/mediatek/mtk-pmic-wrap.c linux-libre-5.1.21-gnu/drivers/soc/mediatek/mtk-pmic-wrap.c
--- linux-libre-5.1-gnu/drivers/soc/mediatek/mtk-pmic-wrap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/soc/mediatek/mtk-pmic-wrap.c	2019-07-28 02:28:39.000000000 -0400
@@ -1281,7 +1281,7 @@ static bool pwrap_is_pmic_cipher_ready(s
 static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 {
 	int ret;
-	u32 rdata;
+	u32 rdata = 0;
 
 	pwrap_writel(wrp, 0x1, PWRAP_CIPHER_SWRST);
 	pwrap_writel(wrp, 0x0, PWRAP_CIPHER_SWRST);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/soc/renesas/renesas-soc.c linux-libre-5.1.21-gnu/drivers/soc/renesas/renesas-soc.c
--- linux-libre-5.1-gnu/drivers/soc/renesas/renesas-soc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/soc/renesas/renesas-soc.c	2019-07-28 02:28:39.000000000 -0400
@@ -335,6 +335,9 @@ static int __init renesas_soc_init(void)
 		/* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
 		if ((product & 0x7fff) == 0x5210)
 			product ^= 0x11;
+		/* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
+		if ((product & 0x7fff) == 0x5211)
+			product ^= 0x12;
 		if (soc->id && ((product >> 8) & 0xff) != soc->id) {
 			pr_warn("SoC mismatch (product = 0x%x)\n", product);
 			return -ENODEV;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/soc/rockchip/grf.c linux-libre-5.1.21-gnu/drivers/soc/rockchip/grf.c
--- linux-libre-5.1-gnu/drivers/soc/rockchip/grf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/soc/rockchip/grf.c	2019-07-28 02:28:39.000000000 -0400
@@ -66,9 +66,11 @@ static const struct rockchip_grf_info rk
 };
 
 #define RK3288_GRF_SOC_CON0		0x244
+#define RK3288_GRF_SOC_CON2		0x24c
 
 static const struct rockchip_grf_value rk3288_defaults[] __initconst = {
 	{ "jtag switching", RK3288_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 12) },
+	{ "pwm select", RK3288_GRF_SOC_CON2, HIWORD_UPDATE(1, 1, 0) },
 };
 
 static const struct rockchip_grf_info rk3288_grf __initconst = {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/soc/sunxi/Kconfig linux-libre-5.1.21-gnu/drivers/soc/sunxi/Kconfig
--- linux-libre-5.1-gnu/drivers/soc/sunxi/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/soc/sunxi/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -4,6 +4,7 @@
 config SUNXI_SRAM
 	bool
 	default ARCH_SUNXI
+	select REGMAP_MMIO
 	help
 	  Say y here to enable the SRAM controller support. This
 	  device is responsible on mapping the SRAM in the sunXi SoCs
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/soc/tegra/pmc.c linux-libre-5.1.21-gnu/drivers/soc/tegra/pmc.c
--- linux-libre-5.1-gnu/drivers/soc/tegra/pmc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/soc/tegra/pmc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1999,7 +1999,7 @@ static int tegra_pmc_probe(struct platfo
 	if (IS_ENABLED(CONFIG_DEBUG_FS)) {
 		err = tegra_powergate_debugfs_init();
 		if (err < 0)
-			return err;
+			goto cleanup_sysfs;
 	}
 
 	err = register_restart_handler(&tegra_pmc_restart_handler);
@@ -2030,6 +2030,9 @@ cleanup_restart_handler:
 	unregister_restart_handler(&tegra_pmc_restart_handler);
 cleanup_debugfs:
 	debugfs_remove(pmc->debugfs);
+cleanup_sysfs:
+	device_remove_file(&pdev->dev, &dev_attr_reset_reason);
+	device_remove_file(&pdev->dev, &dev_attr_reset_level);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/soundwire/intel.c linux-libre-5.1.21-gnu/drivers/soundwire/intel.c
--- linux-libre-5.1-gnu/drivers/soundwire/intel.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/soundwire/intel.c	2019-07-28 02:28:39.000000000 -0400
@@ -714,8 +714,8 @@ static int intel_create_dai(struct sdw_c
 				return -ENOMEM;
 			}
 
-			dais[i].playback.channels_min = 1;
-			dais[i].playback.channels_max = max_ch;
+			dais[i].capture.channels_min = 1;
+			dais[i].capture.channels_max = max_ch;
 			dais[i].capture.rates = SNDRV_PCM_RATE_48000;
 			dais[i].capture.formats = SNDRV_PCM_FMTBIT_S16_LE;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/soundwire/stream.c linux-libre-5.1.21-gnu/drivers/soundwire/stream.c
--- linux-libre-5.1-gnu/drivers/soundwire/stream.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/soundwire/stream.c	2019-07-28 02:28:39.000000000 -0400
@@ -805,7 +805,8 @@ static int do_bank_switch(struct sdw_str
 			goto error;
 		}
 
-		mutex_unlock(&bus->msg_lock);
+		if (bus->multi_link)
+			mutex_unlock(&bus->msg_lock);
 	}
 
 	return ret;
@@ -1401,9 +1402,7 @@ struct sdw_dpn_prop *sdw_get_slave_dpn_p
 	}
 
 	for (i = 0; i < num_ports; i++) {
-		dpn_prop = &dpn_prop[i];
-
-		if (dpn_prop->num == port_num)
+		if (dpn_prop[i].num == port_num)
 			return &dpn_prop[i];
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/atmel-quadspi.c linux-libre-5.1.21-gnu/drivers/spi/atmel-quadspi.c
--- linux-libre-5.1-gnu/drivers/spi/atmel-quadspi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/atmel-quadspi.c	2019-07-28 02:28:39.000000000 -0400
@@ -570,7 +570,8 @@ static int atmel_qspi_remove(struct plat
 
 static int __maybe_unused atmel_qspi_suspend(struct device *dev)
 {
-	struct atmel_qspi *aq = dev_get_drvdata(dev);
+	struct spi_controller *ctrl = dev_get_drvdata(dev);
+	struct atmel_qspi *aq = spi_controller_get_devdata(ctrl);
 
 	clk_disable_unprepare(aq->qspick);
 	clk_disable_unprepare(aq->pclk);
@@ -580,7 +581,8 @@ static int __maybe_unused atmel_qspi_sus
 
 static int __maybe_unused atmel_qspi_resume(struct device *dev)
 {
-	struct atmel_qspi *aq = dev_get_drvdata(dev);
+	struct spi_controller *ctrl = dev_get_drvdata(dev);
+	struct atmel_qspi *aq = spi_controller_get_devdata(ctrl);
 
 	clk_prepare_enable(aq->pclk);
 	clk_prepare_enable(aq->qspick);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi-bitbang.c linux-libre-5.1.21-gnu/drivers/spi/spi-bitbang.c
--- linux-libre-5.1-gnu/drivers/spi/spi-bitbang.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi-bitbang.c	2019-07-28 02:28:39.000000000 -0400
@@ -403,7 +403,7 @@ int spi_bitbang_start(struct spi_bitbang
 	if (ret)
 		spi_master_put(master);
 
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(spi_bitbang_start);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi.c linux-libre-5.1.21-gnu/drivers/spi/spi.c
--- linux-libre-5.1-gnu/drivers/spi/spi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi.c	2019-07-28 02:28:39.000000000 -0400
@@ -36,6 +36,8 @@
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/spi.h>
+EXPORT_TRACEPOINT_SYMBOL(spi_transfer_start);
+EXPORT_TRACEPOINT_SYMBOL(spi_transfer_stop);
 
 #include "internals.h"
 
@@ -1039,6 +1041,8 @@ static int spi_map_msg(struct spi_contro
 		if (max_tx || max_rx) {
 			list_for_each_entry(xfer, &msg->transfers,
 					    transfer_list) {
+				if (!xfer->len)
+					continue;
 				if (!xfer->tx_buf)
 					xfer->tx_buf = ctlr->dummy_tx;
 				if (!xfer->rx_buf)
@@ -2195,6 +2199,8 @@ static int spi_get_gpio_descs(struct spi
 		 */
 		cs[i] = devm_gpiod_get_index_optional(dev, "cs", i,
 						      GPIOD_OUT_LOW);
+		if (IS_ERR(cs[i]))
+			return PTR_ERR(cs[i]);
 
 		if (cs[i]) {
 			/*
@@ -2275,29 +2281,6 @@ int spi_register_controller(struct spi_c
 	if (status)
 		return status;
 
-	if (!spi_controller_is_slave(ctlr)) {
-		if (ctlr->use_gpio_descriptors) {
-			status = spi_get_gpio_descs(ctlr);
-			if (status)
-				return status;
-			/*
-			 * A controller using GPIO descriptors always
-			 * supports SPI_CS_HIGH if need be.
-			 */
-			ctlr->mode_bits |= SPI_CS_HIGH;
-		} else {
-			/* Legacy code path for GPIOs from DT */
-			status = of_spi_register_master(ctlr);
-			if (status)
-				return status;
-		}
-	}
-
-	/* even if it's just one always-selected device, there must
-	 * be at least one chipselect
-	 */
-	if (ctlr->num_chipselect == 0)
-		return -EINVAL;
 	if (ctlr->bus_num >= 0) {
 		/* devices with a fixed bus num must check-in with the num */
 		mutex_lock(&board_lock);
@@ -2349,6 +2332,32 @@ int spi_register_controller(struct spi_c
 	 * registration fails if the bus ID is in use.
 	 */
 	dev_set_name(&ctlr->dev, "spi%u", ctlr->bus_num);
+
+	if (!spi_controller_is_slave(ctlr)) {
+		if (ctlr->use_gpio_descriptors) {
+			status = spi_get_gpio_descs(ctlr);
+			if (status)
+				return status;
+			/*
+			 * A controller using GPIO descriptors always
+			 * supports SPI_CS_HIGH if need be.
+			 */
+			ctlr->mode_bits |= SPI_CS_HIGH;
+		} else {
+			/* Legacy code path for GPIOs from DT */
+			status = of_spi_register_master(ctlr);
+			if (status)
+				return status;
+		}
+	}
+
+	/*
+	 * Even if it's just one always-selected device, there must
+	 * be at least one chipselect.
+	 */
+	if (!ctlr->num_chipselect)
+		return -EINVAL;
+
 	status = device_add(&ctlr->dev);
 	if (status < 0) {
 		/* free bus id */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi-imx.c linux-libre-5.1.21-gnu/drivers/spi/spi-imx.c
--- linux-libre-5.1-gnu/drivers/spi/spi-imx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi-imx.c	2019-07-28 02:28:39.000000000 -0400
@@ -1494,7 +1494,7 @@ static int spi_imx_transfer(struct spi_d
 
 	/* flush rxfifo before transfer */
 	while (spi_imx->devtype_data->rx_available(spi_imx))
-		spi_imx->rx(spi_imx);
+		readl(spi_imx->base + MXC_CSPIRXDATA);
 
 	if (spi_imx->slave_mode)
 		return spi_imx_pio_transfer_slave(spi, transfer);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi-pxa2xx.c linux-libre-5.1.21-gnu/drivers/spi/spi-pxa2xx.c
--- linux-libre-5.1-gnu/drivers/spi/spi-pxa2xx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi-pxa2xx.c	2019-07-28 02:28:39.000000000 -0400
@@ -884,10 +884,14 @@ static unsigned int ssp_get_clk_div(stru
 
 	rate = min_t(int, ssp_clk, rate);
 
+	/*
+	 * Calculate the divisor for the SCR (Serial Clock Rate), avoiding
+	 * that the SSP transmission rate can be greater than the device rate
+	 */
 	if (ssp->type == PXA25x_SSP || ssp->type == CE4100_SSP)
-		return (ssp_clk / (2 * rate) - 1) & 0xff;
+		return (DIV_ROUND_UP(ssp_clk, 2 * rate) - 1) & 0xff;
 	else
-		return (ssp_clk / rate - 1) & 0xfff;
+		return (DIV_ROUND_UP(ssp_clk, rate) - 1)  & 0xfff;
 }
 
 static unsigned int pxa2xx_ssp_get_clk_div(struct driver_data *drv_data,
@@ -1487,12 +1491,7 @@ static int pxa2xx_spi_get_port_id(struct
 
 static bool pxa2xx_spi_idma_filter(struct dma_chan *chan, void *param)
 {
-	struct device *dev = param;
-
-	if (dev != chan->device->dev->parent)
-		return false;
-
-	return true;
+	return param == chan->device->dev;
 }
 
 #endif /* CONFIG_PCI */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi-rockchip.c linux-libre-5.1.21-gnu/drivers/spi/spi-rockchip.c
--- linux-libre-5.1-gnu/drivers/spi/spi-rockchip.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi-rockchip.c	2019-07-28 02:28:39.000000000 -0400
@@ -425,7 +425,7 @@ static int rockchip_spi_prepare_dma(stru
 			.direction = DMA_MEM_TO_DEV,
 			.dst_addr = rs->dma_addr_tx,
 			.dst_addr_width = rs->n_bytes,
-			.dst_maxburst = rs->fifo_len / 2,
+			.dst_maxburst = rs->fifo_len / 4,
 		};
 
 		dmaengine_slave_config(master->dma_tx, &txconf);
@@ -526,7 +526,7 @@ static void rockchip_spi_config(struct r
 	else
 		writel_relaxed(rs->fifo_len / 2 - 1, rs->regs + ROCKCHIP_SPI_RXFTLR);
 
-	writel_relaxed(rs->fifo_len / 2 - 1, rs->regs + ROCKCHIP_SPI_DMATDLR);
+	writel_relaxed(rs->fifo_len / 2, rs->regs + ROCKCHIP_SPI_DMATDLR);
 	writel_relaxed(0, rs->regs + ROCKCHIP_SPI_DMARDLR);
 	writel_relaxed(dmacr, rs->regs + ROCKCHIP_SPI_DMACR);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi-rspi.c linux-libre-5.1.21-gnu/drivers/spi/spi-rspi.c
--- linux-libre-5.1-gnu/drivers/spi/spi-rspi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi-rspi.c	2019-07-28 02:28:39.000000000 -0400
@@ -271,7 +271,8 @@ static int rspi_set_config_register(stru
 	/* Sets parity, interrupt mask */
 	rspi_write8(rspi, 0x00, RSPI_SPCR2);
 
-	/* Sets SPCMD */
+	/* Resets sequencer */
+	rspi_write8(rspi, 0, RSPI_SPSCR);
 	rspi->spcmd |= SPCMD_SPB_8_TO_16(access_size);
 	rspi_write16(rspi, rspi->spcmd, RSPI_SPCMD0);
 
@@ -315,7 +316,8 @@ static int rspi_rz_set_config_register(s
 	rspi_write8(rspi, 0x00, RSPI_SSLND);
 	rspi_write8(rspi, 0x00, RSPI_SPND);
 
-	/* Sets SPCMD */
+	/* Resets sequencer */
+	rspi_write8(rspi, 0, RSPI_SPSCR);
 	rspi->spcmd |= SPCMD_SPB_8_TO_16(access_size);
 	rspi_write16(rspi, rspi->spcmd, RSPI_SPCMD0);
 
@@ -366,7 +368,8 @@ static int qspi_set_config_register(stru
 	/* Sets buffer to allow normal operation */
 	rspi_write8(rspi, 0x00, QSPI_SPBFCR);
 
-	/* Sets SPCMD */
+	/* Resets sequencer */
+	rspi_write8(rspi, 0, RSPI_SPSCR);
 	rspi_write16(rspi, rspi->spcmd, RSPI_SPCMD0);
 
 	/* Sets RSPI mode */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi-stm32-qspi.c linux-libre-5.1.21-gnu/drivers/spi/spi-stm32-qspi.c
--- linux-libre-5.1-gnu/drivers/spi/spi-stm32-qspi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi-stm32-qspi.c	2019-07-28 02:28:39.000000000 -0400
@@ -93,6 +93,7 @@ struct stm32_qspi_flash {
 
 struct stm32_qspi {
 	struct device *dev;
+	struct spi_controller *ctrl;
 	void __iomem *io_base;
 	void __iomem *mm_base;
 	resource_size_t mm_size;
@@ -397,6 +398,7 @@ static void stm32_qspi_release(struct st
 	writel_relaxed(0, qspi->io_base + QSPI_CR);
 	mutex_destroy(&qspi->lock);
 	clk_disable_unprepare(qspi->clk);
+	spi_master_put(qspi->ctrl);
 }
 
 static int stm32_qspi_probe(struct platform_device *pdev)
@@ -413,43 +415,54 @@ static int stm32_qspi_probe(struct platf
 		return -ENOMEM;
 
 	qspi = spi_controller_get_devdata(ctrl);
+	qspi->ctrl = ctrl;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "qspi");
 	qspi->io_base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(qspi->io_base))
-		return PTR_ERR(qspi->io_base);
+	if (IS_ERR(qspi->io_base)) {
+		ret = PTR_ERR(qspi->io_base);
+		goto err;
+	}
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "qspi_mm");
 	qspi->mm_base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(qspi->mm_base))
-		return PTR_ERR(qspi->mm_base);
+	if (IS_ERR(qspi->mm_base)) {
+		ret = PTR_ERR(qspi->mm_base);
+		goto err;
+	}
 
 	qspi->mm_size = resource_size(res);
-	if (qspi->mm_size > STM32_QSPI_MAX_MMAP_SZ)
-		return -EINVAL;
+	if (qspi->mm_size > STM32_QSPI_MAX_MMAP_SZ) {
+		ret = -EINVAL;
+		goto err;
+	}
 
 	irq = platform_get_irq(pdev, 0);
 	ret = devm_request_irq(dev, irq, stm32_qspi_irq, 0,
 			       dev_name(dev), qspi);
 	if (ret) {
 		dev_err(dev, "failed to request irq\n");
-		return ret;
+		goto err;
 	}
 
 	init_completion(&qspi->data_completion);
 
 	qspi->clk = devm_clk_get(dev, NULL);
-	if (IS_ERR(qspi->clk))
-		return PTR_ERR(qspi->clk);
+	if (IS_ERR(qspi->clk)) {
+		ret = PTR_ERR(qspi->clk);
+		goto err;
+	}
 
 	qspi->clk_rate = clk_get_rate(qspi->clk);
-	if (!qspi->clk_rate)
-		return -EINVAL;
+	if (!qspi->clk_rate) {
+		ret = -EINVAL;
+		goto err;
+	}
 
 	ret = clk_prepare_enable(qspi->clk);
 	if (ret) {
 		dev_err(dev, "can not enable the clock\n");
-		return ret;
+		goto err;
 	}
 
 	rstc = devm_reset_control_get_exclusive(dev, NULL);
@@ -472,14 +485,11 @@ static int stm32_qspi_probe(struct platf
 	ctrl->dev.of_node = dev->of_node;
 
 	ret = devm_spi_register_master(dev, ctrl);
-	if (ret)
-		goto err_spi_register;
-
-	return 0;
+	if (!ret)
+		return 0;
 
-err_spi_register:
+err:
 	stm32_qspi_release(qspi);
-
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi-tegra114.c linux-libre-5.1.21-gnu/drivers/spi/spi-tegra114.c
--- linux-libre-5.1-gnu/drivers/spi/spi-tegra114.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi-tegra114.c	2019-07-28 02:28:39.000000000 -0400
@@ -1067,27 +1067,19 @@ static int tegra_spi_probe(struct platfo
 
 	spi_irq = platform_get_irq(pdev, 0);
 	tspi->irq = spi_irq;
-	ret = request_threaded_irq(tspi->irq, tegra_spi_isr,
-			tegra_spi_isr_thread, IRQF_ONESHOT,
-			dev_name(&pdev->dev), tspi);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n",
-					tspi->irq);
-		goto exit_free_master;
-	}
 
 	tspi->clk = devm_clk_get(&pdev->dev, "spi");
 	if (IS_ERR(tspi->clk)) {
 		dev_err(&pdev->dev, "can not get clock\n");
 		ret = PTR_ERR(tspi->clk);
-		goto exit_free_irq;
+		goto exit_free_master;
 	}
 
 	tspi->rst = devm_reset_control_get_exclusive(&pdev->dev, "spi");
 	if (IS_ERR(tspi->rst)) {
 		dev_err(&pdev->dev, "can not get reset\n");
 		ret = PTR_ERR(tspi->rst);
-		goto exit_free_irq;
+		goto exit_free_master;
 	}
 
 	tspi->max_buf_size = SPI_FIFO_DEPTH << 2;
@@ -1095,7 +1087,7 @@ static int tegra_spi_probe(struct platfo
 
 	ret = tegra_spi_init_dma_param(tspi, true);
 	if (ret < 0)
-		goto exit_free_irq;
+		goto exit_free_master;
 	ret = tegra_spi_init_dma_param(tspi, false);
 	if (ret < 0)
 		goto exit_rx_dma_free;
@@ -1117,18 +1109,32 @@ static int tegra_spi_probe(struct platfo
 		dev_err(&pdev->dev, "pm runtime get failed, e = %d\n", ret);
 		goto exit_pm_disable;
 	}
+
+	reset_control_assert(tspi->rst);
+	udelay(2);
+	reset_control_deassert(tspi->rst);
 	tspi->def_command1_reg  = SPI_M_S;
 	tegra_spi_writel(tspi, tspi->def_command1_reg, SPI_COMMAND1);
 	pm_runtime_put(&pdev->dev);
+	ret = request_threaded_irq(tspi->irq, tegra_spi_isr,
+				   tegra_spi_isr_thread, IRQF_ONESHOT,
+				   dev_name(&pdev->dev), tspi);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n",
+			tspi->irq);
+		goto exit_pm_disable;
+	}
 
 	master->dev.of_node = pdev->dev.of_node;
 	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "can not register to master err %d\n", ret);
-		goto exit_pm_disable;
+		goto exit_free_irq;
 	}
 	return ret;
 
+exit_free_irq:
+	free_irq(spi_irq, tspi);
 exit_pm_disable:
 	pm_runtime_disable(&pdev->dev);
 	if (!pm_runtime_status_suspended(&pdev->dev))
@@ -1136,8 +1142,6 @@ exit_pm_disable:
 	tegra_spi_deinit_dma_param(tspi, false);
 exit_rx_dma_free:
 	tegra_spi_deinit_dma_param(tspi, true);
-exit_free_irq:
-	free_irq(spi_irq, tspi);
 exit_free_master:
 	spi_master_put(master);
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/spi/spi-topcliff-pch.c linux-libre-5.1.21-gnu/drivers/spi/spi-topcliff-pch.c
--- linux-libre-5.1-gnu/drivers/spi/spi-topcliff-pch.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/spi/spi-topcliff-pch.c	2019-07-28 02:28:39.000000000 -0400
@@ -1299,18 +1299,27 @@ static void pch_free_dma_buf(struct pch_
 				  dma->rx_buf_virt, dma->rx_buf_dma);
 }
 
-static void pch_alloc_dma_buf(struct pch_spi_board_data *board_dat,
+static int pch_alloc_dma_buf(struct pch_spi_board_data *board_dat,
 			      struct pch_spi_data *data)
 {
 	struct pch_spi_dma_ctrl *dma;
+	int ret;
 
 	dma = &data->dma;
+	ret = 0;
 	/* Get Consistent memory for Tx DMA */
 	dma->tx_buf_virt = dma_alloc_coherent(&board_dat->pdev->dev,
 				PCH_BUF_SIZE, &dma->tx_buf_dma, GFP_KERNEL);
+	if (!dma->tx_buf_virt)
+		ret = -ENOMEM;
+
 	/* Get Consistent memory for Rx DMA */
 	dma->rx_buf_virt = dma_alloc_coherent(&board_dat->pdev->dev,
 				PCH_BUF_SIZE, &dma->rx_buf_dma, GFP_KERNEL);
+	if (!dma->rx_buf_virt)
+		ret = -ENOMEM;
+
+	return ret;
 }
 
 static int pch_spi_pd_probe(struct platform_device *plat_dev)
@@ -1387,7 +1396,9 @@ static int pch_spi_pd_probe(struct platf
 
 	if (use_dma) {
 		dev_info(&plat_dev->dev, "Use DMA for data transfers\n");
-		pch_alloc_dma_buf(board_dat, data);
+		ret = pch_alloc_dma_buf(board_dat, data);
+		if (ret)
+			goto err_spi_register_master;
 	}
 
 	ret = spi_register_master(master);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/ssb/bridge_pcmcia_80211.c linux-libre-5.1.21-gnu/drivers/ssb/bridge_pcmcia_80211.c
--- linux-libre-5.1-gnu/drivers/ssb/bridge_pcmcia_80211.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/ssb/bridge_pcmcia_80211.c	2019-07-28 02:28:39.000000000 -0400
@@ -113,16 +113,21 @@ static struct pcmcia_driver ssb_host_pcm
 	.resume		= ssb_host_pcmcia_resume,
 };
 
+static int pcmcia_init_failed;
+
 /*
  * These are not module init/exit functions!
  * The module_pcmcia_driver() helper cannot be used here.
  */
 int ssb_host_pcmcia_init(void)
 {
-	return pcmcia_register_driver(&ssb_host_pcmcia_driver);
+	pcmcia_init_failed = pcmcia_register_driver(&ssb_host_pcmcia_driver);
+
+	return pcmcia_init_failed;
 }
 
 void ssb_host_pcmcia_exit(void)
 {
-	pcmcia_unregister_driver(&ssb_host_pcmcia_driver);
+	if (!pcmcia_init_failed)
+		pcmcia_unregister_driver(&ssb_host_pcmcia_driver);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/comedi/drivers/amplc_pci230.c linux-libre-5.1.21-gnu/drivers/staging/comedi/drivers/amplc_pci230.c
--- linux-libre-5.1-gnu/drivers/staging/comedi/drivers/amplc_pci230.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/comedi/drivers/amplc_pci230.c	2019-07-28 02:28:39.000000000 -0400
@@ -2330,7 +2330,8 @@ static irqreturn_t pci230_interrupt(int
 	devpriv->intr_running = false;
 	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
-	comedi_handle_events(dev, s_ao);
+	if (s_ao)
+		comedi_handle_events(dev, s_ao);
 	comedi_handle_events(dev, s_ai);
 
 	return IRQ_HANDLED;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/comedi/drivers/dt282x.c linux-libre-5.1.21-gnu/drivers/staging/comedi/drivers/dt282x.c
--- linux-libre-5.1-gnu/drivers/staging/comedi/drivers/dt282x.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/comedi/drivers/dt282x.c	2019-07-28 02:28:39.000000000 -0400
@@ -557,7 +557,8 @@ static irqreturn_t dt282x_interrupt(int
 	}
 #endif
 	comedi_handle_events(dev, s);
-	comedi_handle_events(dev, s_ao);
+	if (s_ao)
+		comedi_handle_events(dev, s_ao);
 
 	return IRQ_RETVAL(handled);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/erofs/erofs_fs.h linux-libre-5.1.21-gnu/drivers/staging/erofs/erofs_fs.h
--- linux-libre-5.1-gnu/drivers/staging/erofs/erofs_fs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/erofs/erofs_fs.h	2019-07-28 02:28:39.000000000 -0400
@@ -17,10 +17,16 @@
 #define EROFS_SUPER_MAGIC_V1    0xE0F5E1E2
 #define EROFS_SUPER_OFFSET      1024
 
+/*
+ * Any bits that aren't in EROFS_ALL_REQUIREMENTS should be
+ * incompatible with this kernel version.
+ */
+#define EROFS_ALL_REQUIREMENTS  0
+
 struct erofs_super_block {
 /*  0 */__le32 magic;           /* in the little endian */
 /*  4 */__le32 checksum;        /* crc32c(super_block) */
-/*  8 */__le32 features;
+/*  8 */__le32 features;        /* (aka. feature_compat) */
 /* 12 */__u8 blkszbits;         /* support block_size == PAGE_SIZE only */
 /* 13 */__u8 reserved;
 
@@ -34,9 +40,10 @@ struct erofs_super_block {
 /* 44 */__le32 xattr_blkaddr;
 /* 48 */__u8 uuid[16];          /* 128-bit uuid for volume */
 /* 64 */__u8 volume_name[16];   /* volume name */
+/* 80 */__le32 requirements;    /* (aka. feature_incompat) */
 
-/* 80 */__u8 reserved2[48];     /* 128 bytes */
-} __packed;
+/* 84 */__u8 reserved2[44];
+} __packed;                     /* 128 bytes */
 
 /*
  * erofs inode data mapping:
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/erofs/internal.h linux-libre-5.1.21-gnu/drivers/staging/erofs/internal.h
--- linux-libre-5.1-gnu/drivers/staging/erofs/internal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/erofs/internal.h	2019-07-28 02:28:39.000000000 -0400
@@ -114,6 +114,8 @@ struct erofs_sb_info {
 
 	u8 uuid[16];                    /* 128-bit uuid for volume */
 	u8 volume_name[16];             /* volume name */
+	u32 requirements;
+
 	char *dev_name;
 
 	unsigned int mount_opt;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/erofs/super.c linux-libre-5.1.21-gnu/drivers/staging/erofs/super.c
--- linux-libre-5.1-gnu/drivers/staging/erofs/super.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/erofs/super.c	2019-07-28 02:28:39.000000000 -0400
@@ -76,6 +76,22 @@ static void destroy_inode(struct inode *
 	call_rcu(&inode->i_rcu, i_callback);
 }
 
+static bool check_layout_compatibility(struct super_block *sb,
+				       struct erofs_super_block *layout)
+{
+	const unsigned int requirements = le32_to_cpu(layout->requirements);
+
+	EROFS_SB(sb)->requirements = requirements;
+
+	/* check if current kernel meets all mandatory requirements */
+	if (requirements & (~EROFS_ALL_REQUIREMENTS)) {
+		errln("unidentified requirements %x, please upgrade kernel version",
+		      requirements & ~EROFS_ALL_REQUIREMENTS);
+		return false;
+	}
+	return true;
+}
+
 static int superblock_read(struct super_block *sb)
 {
 	struct erofs_sb_info *sbi;
@@ -109,6 +125,9 @@ static int superblock_read(struct super_
 		goto out;
 	}
 
+	if (!check_layout_compatibility(sb, layout))
+		goto out;
+
 	sbi->blocks = le32_to_cpu(layout->blocks);
 	sbi->meta_blkaddr = le32_to_cpu(layout->meta_blkaddr);
 #ifdef CONFIG_EROFS_FS_XATTR
@@ -459,6 +478,7 @@ static int erofs_read_super(struct super
 	 */
 err_devname:
 	dput(sb->s_root);
+	sb->s_root = NULL;
 err_iget:
 #ifdef EROFS_FS_HAS_MANAGED_CACHE
 	iput(sbi->managed_cache);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/fsl-dpaa2/ethsw/ethsw.c linux-libre-5.1.21-gnu/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
--- linux-libre-5.1-gnu/drivers/staging/fsl-dpaa2/ethsw/ethsw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/fsl-dpaa2/ethsw/ethsw.c	2019-07-28 02:28:39.000000000 -0400
@@ -1086,6 +1086,7 @@ static int port_switchdev_event(struct n
 		dev_hold(dev);
 		break;
 	default:
+		kfree(switchdev_work);
 		return NOTIFY_DONE;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/greybus/power_supply.c linux-libre-5.1.21-gnu/drivers/staging/greybus/power_supply.c
--- linux-libre-5.1-gnu/drivers/staging/greybus/power_supply.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/greybus/power_supply.c	2019-07-28 02:28:39.000000000 -0400
@@ -520,7 +520,7 @@ static int gb_power_supply_prop_descript
 
 	op = gb_operation_create(connection,
 				 GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS,
-				 sizeof(req), sizeof(*resp) + props_count *
+				 sizeof(*req), sizeof(*resp) + props_count *
 				 sizeof(struct gb_power_supply_props_desc),
 				 GFP_KERNEL);
 	if (!op)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/iio/cdc/ad7150.c linux-libre-5.1.21-gnu/drivers/staging/iio/cdc/ad7150.c
--- linux-libre-5.1-gnu/drivers/staging/iio/cdc/ad7150.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/iio/cdc/ad7150.c	2019-07-28 02:28:39.000000000 -0400
@@ -6,6 +6,7 @@
  * Licensed under the GPL-2 or later.
  */
 
+#include <linux/bitfield.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
@@ -131,7 +132,7 @@ static int ad7150_read_event_config(stru
 {
 	int ret;
 	u8 threshtype;
-	bool adaptive;
+	bool thrfixed;
 	struct ad7150_chip_info *chip = iio_priv(indio_dev);
 
 	ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG);
@@ -139,21 +140,23 @@ static int ad7150_read_event_config(stru
 		return ret;
 
 	threshtype = (ret >> 5) & 0x03;
-	adaptive = !!(ret & 0x80);
+
+	/*check if threshold mode is fixed or adaptive*/
+	thrfixed = FIELD_GET(AD7150_CFG_FIX, ret);
 
 	switch (type) {
 	case IIO_EV_TYPE_MAG_ADAPTIVE:
 		if (dir == IIO_EV_DIR_RISING)
-			return adaptive && (threshtype == 0x1);
-		return adaptive && (threshtype == 0x0);
+			return !thrfixed && (threshtype == 0x1);
+		return !thrfixed && (threshtype == 0x0);
 	case IIO_EV_TYPE_THRESH_ADAPTIVE:
 		if (dir == IIO_EV_DIR_RISING)
-			return adaptive && (threshtype == 0x3);
-		return adaptive && (threshtype == 0x2);
+			return !thrfixed && (threshtype == 0x3);
+		return !thrfixed && (threshtype == 0x2);
 	case IIO_EV_TYPE_THRESH:
 		if (dir == IIO_EV_DIR_RISING)
-			return !adaptive && (threshtype == 0x1);
-		return !adaptive && (threshtype == 0x0);
+			return thrfixed && (threshtype == 0x1);
+		return thrfixed && (threshtype == 0x0);
 	default:
 		break;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/davinci_vpfe/Kconfig linux-libre-5.1.21-gnu/drivers/staging/media/davinci_vpfe/Kconfig
--- linux-libre-5.1-gnu/drivers/staging/media/davinci_vpfe/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/davinci_vpfe/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -1,7 +1,7 @@
 config VIDEO_DM365_VPFE
 	tristate "DM365 VPFE Media Controller Capture Driver"
 	depends on VIDEO_V4L2
-	depends on (ARCH_DAVINCI_DM365 && !VIDEO_DM365_ISIF) || COMPILE_TEST
+	depends on (ARCH_DAVINCI_DM365 && !VIDEO_DM365_ISIF) || (COMPILE_TEST && !ARCH_OMAP1)
 	depends on VIDEO_V4L2_SUBDEV_API
 	depends on VIDEO_DAVINCI_VPBE_DISPLAY
 	select VIDEOBUF2_DMA_CONTIG
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/davinci_vpfe/vpfe_video.c linux-libre-5.1.21-gnu/drivers/staging/media/davinci_vpfe/vpfe_video.c
--- linux-libre-5.1-gnu/drivers/staging/media/davinci_vpfe/vpfe_video.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/davinci_vpfe/vpfe_video.c	2019-07-28 02:28:39.000000000 -0400
@@ -419,6 +419,9 @@ static int vpfe_open(struct file *file)
 	/* If decoder is not initialized. initialize it */
 	if (!video->initialized && vpfe_update_pipe_state(video)) {
 		mutex_unlock(&video->lock);
+		v4l2_fh_del(&handle->vfh);
+		v4l2_fh_exit(&handle->vfh);
+		kfree(handle);
 		return -ENODEV;
 	}
 	/* Increment device users counter */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx7-media-csi.c linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx7-media-csi.c
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx7-media-csi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx7-media-csi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1271,7 +1271,7 @@ static int imx7_csi_probe(struct platfor
 	platform_set_drvdata(pdev, &csi->sd);
 
 	ret = imx_media_of_add_csi(imxmd, node);
-	if (ret < 0)
+	if (ret < 0 && ret != -ENODEV && ret != -EEXIST)
 		goto cleanup;
 
 	ret = imx_media_dev_notifier_register(imxmd);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx7-mipi-csis.c linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx7-mipi-csis.c
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx7-mipi-csis.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx7-mipi-csis.c	2019-07-28 02:28:39.000000000 -0400
@@ -455,13 +455,9 @@ static void mipi_csis_set_params(struct
 			MIPI_CSIS_CMN_CTRL_UPDATE_SHADOW_CTRL);
 }
 
-static void mipi_csis_clk_enable(struct csi_state *state)
+static int mipi_csis_clk_enable(struct csi_state *state)
 {
-	int ret;
-
-	ret = clk_bulk_prepare_enable(state->num_clks, state->clks);
-	if (ret < 0)
-		dev_err(state->dev, "failed to enable clocks\n");
+	return clk_bulk_prepare_enable(state->num_clks, state->clks);
 }
 
 static void mipi_csis_clk_disable(struct csi_state *state)
@@ -985,7 +981,11 @@ static int mipi_csis_probe(struct platfo
 	if (ret < 0)
 		return ret;
 
-	mipi_csis_clk_enable(state);
+	ret = mipi_csis_clk_enable(state);
+	if (ret < 0) {
+		dev_err(state->dev, "failed to enable clocks: %d\n", ret);
+		return ret;
+	}
 
 	ret = devm_request_irq(dev, state->irq, mipi_csis_irq_handler,
 			       0, dev_name(dev), state);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx-ic-common.c linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-ic-common.c
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx-ic-common.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-ic-common.c	2019-07-28 02:28:39.000000000 -0400
@@ -26,7 +26,7 @@ static struct imx_ic_ops *ic_ops[IC_NUM_
 
 static int imx_ic_probe(struct platform_device *pdev)
 {
-	struct imx_media_internal_sd_platformdata *pdata;
+	struct imx_media_ipu_internal_sd_pdata *pdata;
 	struct imx_ic_priv *priv;
 	int ret;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-csi.c linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-csi.c
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-csi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-csi.c	2019-07-28 02:28:39.000000000 -0400
@@ -154,9 +154,10 @@ static inline bool requires_passthrough(
 /*
  * Parses the fwnode endpoint from the source pad of the entity
  * connected to this CSI. This will either be the entity directly
- * upstream from the CSI-2 receiver, or directly upstream from the
- * video mux. The endpoint is needed to determine the bus type and
- * bus config coming into the CSI.
+ * upstream from the CSI-2 receiver, directly upstream from the
+ * video mux, or directly upstream from the CSI itself. The endpoint
+ * is needed to determine the bus type and bus config coming into
+ * the CSI.
  */
 static int csi_get_upstream_endpoint(struct csi_priv *priv,
 				     struct v4l2_fwnode_endpoint *ep)
@@ -172,7 +173,8 @@ static int csi_get_upstream_endpoint(str
 	if (!priv->src_sd)
 		return -EPIPE;
 
-	src = &priv->src_sd->entity;
+	sd = priv->src_sd;
+	src = &sd->entity;
 
 	if (src->function == MEDIA_ENT_F_VID_MUX) {
 		/*
@@ -186,6 +188,14 @@ static int csi_get_upstream_endpoint(str
 			src = &sd->entity;
 	}
 
+	/*
+	 * If the source is neither the video mux nor the CSI-2 receiver,
+	 * get the source pad directly upstream from CSI itself.
+	 */
+	if (src->function != MEDIA_ENT_F_VID_MUX &&
+	    sd->grp_id != IMX_MEDIA_GRP_ID_CSI2)
+		src = &priv->sd.entity;
+
 	/* get source pad of entity directly upstream from src */
 	pad = imx_media_find_upstream_pad(priv->md, src, 0);
 	if (IS_ERR(pad))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-dev.c linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-dev.c
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -477,13 +477,6 @@ static int imx_media_probe(struct platfo
 		goto cleanup;
 	}
 
-	ret = imx_media_add_internal_subdevs(imxmd);
-	if (ret) {
-		v4l2_err(&imxmd->v4l2_dev,
-			 "add_internal_subdevs failed with %d\n", ret);
-		goto cleanup;
-	}
-
 	ret = imx_media_dev_notifier_register(imxmd);
 	if (ret)
 		goto del_int;
@@ -491,7 +484,7 @@ static int imx_media_probe(struct platfo
 	return 0;
 
 del_int:
-	imx_media_remove_internal_subdevs(imxmd);
+	imx_media_remove_ipu_internal_subdevs(imxmd);
 cleanup:
 	v4l2_async_notifier_cleanup(&imxmd->notifier);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
@@ -508,7 +501,7 @@ static int imx_media_remove(struct platf
 	v4l2_info(&imxmd->v4l2_dev, "Removing imx-media\n");
 
 	v4l2_async_notifier_unregister(&imxmd->notifier);
-	imx_media_remove_internal_subdevs(imxmd);
+	imx_media_remove_ipu_internal_subdevs(imxmd);
 	v4l2_async_notifier_cleanup(&imxmd->notifier);
 	media_device_unregister(&imxmd->md);
 	v4l2_device_unregister(&imxmd->v4l2_dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media.h linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media.h
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media.h	2019-07-28 02:28:39.000000000 -0400
@@ -115,7 +115,7 @@ struct imx_media_pad_vdev {
 	struct list_head list;
 };
 
-struct imx_media_internal_sd_platformdata {
+struct imx_media_ipu_internal_sd_pdata {
 	char sd_name[V4L2_SUBDEV_NAME_SIZE];
 	u32 grp_id;
 	int ipu_id;
@@ -252,10 +252,11 @@ struct imx_media_fim *imx_media_fim_init
 void imx_media_fim_free(struct imx_media_fim *fim);
 
 /* imx-media-internal-sd.c */
-int imx_media_add_internal_subdevs(struct imx_media_dev *imxmd);
+int imx_media_add_ipu_internal_subdevs(struct imx_media_dev *imxmd,
+				       int ipu_id);
 int imx_media_create_ipu_internal_links(struct imx_media_dev *imxmd,
 					struct v4l2_subdev *sd);
-void imx_media_remove_internal_subdevs(struct imx_media_dev *imxmd);
+void imx_media_remove_ipu_internal_subdevs(struct imx_media_dev *imxmd);
 
 /* imx-media-of.c */
 int imx_media_add_of_subdevs(struct imx_media_dev *dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-internal-sd.c linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-internal-sd.c
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-internal-sd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-internal-sd.c	2019-07-28 02:28:39.000000000 -0400
@@ -1,7 +1,7 @@
 /*
  * Media driver for Freescale i.MX5/6 SOC
  *
- * Adds the internal subdevices and the media links between them.
+ * Adds the IPU internal subdevices and the media links between them.
  *
  * Copyright (c) 2016 Mentor Graphics Inc.
  *
@@ -192,7 +192,7 @@ static struct v4l2_subdev *find_sink(str
 
 	/*
 	 * retrieve IPU id from subdev name, note: can't get this from
-	 * struct imx_media_internal_sd_platformdata because if src is
+	 * struct imx_media_ipu_internal_sd_pdata because if src is
 	 * a CSI, it has different struct ipu_client_platformdata which
 	 * does not contain IPU id.
 	 */
@@ -270,7 +270,7 @@ static int add_internal_subdev(struct im
 			       const struct internal_subdev *isd,
 			       int ipu_id)
 {
-	struct imx_media_internal_sd_platformdata pdata;
+	struct imx_media_ipu_internal_sd_pdata pdata;
 	struct platform_device_info pdevinfo = {};
 	struct platform_device *pdev;
 
@@ -298,13 +298,14 @@ static int add_internal_subdev(struct im
 }
 
 /* adds the internal subdevs in one ipu */
-static int add_ipu_internal_subdevs(struct imx_media_dev *imxmd, int ipu_id)
+int imx_media_add_ipu_internal_subdevs(struct imx_media_dev *imxmd,
+				       int ipu_id)
 {
 	enum isd_enum i;
+	int ret;
 
 	for (i = 0; i < num_isd; i++) {
 		const struct internal_subdev *isd = &int_subdev[i];
-		int ret;
 
 		/*
 		 * the CSIs are represented in the device-tree, so those
@@ -322,32 +323,17 @@ static int add_ipu_internal_subdevs(stru
 		}
 
 		if (ret)
-			return ret;
+			goto remove;
 	}
 
 	return 0;
-}
-
-int imx_media_add_internal_subdevs(struct imx_media_dev *imxmd)
-{
-	int ret;
-
-	ret = add_ipu_internal_subdevs(imxmd, 0);
-	if (ret)
-		goto remove;
-
-	ret = add_ipu_internal_subdevs(imxmd, 1);
-	if (ret)
-		goto remove;
-
-	return 0;
 
 remove:
-	imx_media_remove_internal_subdevs(imxmd);
+	imx_media_remove_ipu_internal_subdevs(imxmd);
 	return ret;
 }
 
-void imx_media_remove_internal_subdevs(struct imx_media_dev *imxmd)
+void imx_media_remove_ipu_internal_subdevs(struct imx_media_dev *imxmd)
 {
 	struct imx_media_async_subdev *imxasd;
 	struct v4l2_async_subdev *asd;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-of.c linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-of.c
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-of.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-of.c	2019-07-28 02:28:39.000000000 -0400
@@ -23,36 +23,25 @@
 int imx_media_of_add_csi(struct imx_media_dev *imxmd,
 			 struct device_node *csi_np)
 {
-	int ret;
-
 	if (!of_device_is_available(csi_np)) {
 		dev_dbg(imxmd->md.dev, "%s: %pOFn not enabled\n", __func__,
 			csi_np);
-		/* unavailable is not an error */
-		return 0;
+		return -ENODEV;
 	}
 
 	/* add CSI fwnode to async notifier */
-	ret = imx_media_add_async_subdev(imxmd, of_fwnode_handle(csi_np), NULL);
-	if (ret) {
-		if (ret == -EEXIST) {
-			/* already added, everything is fine */
-			return 0;
-		}
-
-		/* other error, can't continue */
-		return ret;
-	}
-
-	return 0;
+	return imx_media_add_async_subdev(imxmd, of_fwnode_handle(csi_np),
+					  NULL);
 }
 EXPORT_SYMBOL_GPL(imx_media_of_add_csi);
 
 int imx_media_add_of_subdevs(struct imx_media_dev *imxmd,
 			     struct device_node *np)
 {
+	bool ipu_found[2] = {false, false};
 	struct device_node *csi_np;
 	int i, ret;
+	u32 ipu_id;
 
 	for (i = 0; ; i++) {
 		csi_np = of_parse_phandle(np, "ports", i);
@@ -60,12 +49,43 @@ int imx_media_add_of_subdevs(struct imx_
 			break;
 
 		ret = imx_media_of_add_csi(imxmd, csi_np);
-		of_node_put(csi_np);
-		if (ret)
-			return ret;
+		if (ret) {
+			/* unavailable or already added is not an error */
+			if (ret == -ENODEV || ret == -EEXIST) {
+				of_node_put(csi_np);
+				continue;
+			}
+
+			/* other error, can't continue */
+			goto err_out;
+		}
+
+		ret = of_alias_get_id(csi_np->parent, "ipu");
+		if (ret < 0)
+			goto err_out;
+		if (ret > 1) {
+			ret = -EINVAL;
+			goto err_out;
+		}
+
+		ipu_id = ret;
+
+		if (!ipu_found[ipu_id]) {
+			ret = imx_media_add_ipu_internal_subdevs(imxmd,
+								 ipu_id);
+			if (ret)
+				goto err_out;
+		}
+
+		ipu_found[ipu_id] = true;
 	}
 
 	return 0;
+
+err_out:
+	imx_media_remove_ipu_internal_subdevs(imxmd);
+	of_node_put(csi_np);
+	return ret;
 }
 
 /*
@@ -145,15 +165,18 @@ int imx_media_create_csi_of_links(struct
 				  struct v4l2_subdev *csi)
 {
 	struct device_node *csi_np = csi->dev->of_node;
-	struct fwnode_handle *fwnode, *csi_ep;
-	struct v4l2_fwnode_link link;
 	struct device_node *ep;
-	int ret;
-
-	link.local_node = of_fwnode_handle(csi_np);
-	link.local_port = CSI_SINK_PAD;
 
 	for_each_child_of_node(csi_np, ep) {
+		struct fwnode_handle *fwnode, *csi_ep;
+		struct v4l2_fwnode_link link;
+		int ret;
+
+		memset(&link, 0, sizeof(link));
+
+		link.local_node = of_fwnode_handle(csi_np);
+		link.local_port = CSI_SINK_PAD;
+
 		csi_ep = of_fwnode_handle(ep);
 
 		fwnode = fwnode_graph_get_remote_endpoint(csi_ep);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-vdic.c linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-vdic.c
--- linux-libre-5.1-gnu/drivers/staging/media/imx/imx-media-vdic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/imx/imx-media-vdic.c	2019-07-28 02:28:39.000000000 -0400
@@ -231,6 +231,12 @@ static void __maybe_unused prepare_vdi_i
 		curr_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0);
 		next_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0) + is;
 		break;
+	default:
+		/*
+		 * can't get here, priv->fieldtype can only be one of
+		 * the above. This is to quiet smatch errors.
+		 */
+		return;
 	}
 
 	ipu_cpmem_set_buffer(priv->vdi_in_ch_p, 0, prev_phys);
@@ -934,7 +940,7 @@ static const struct v4l2_subdev_internal
 
 static int imx_vdic_probe(struct platform_device *pdev)
 {
-	struct imx_media_internal_sd_platformdata *pdata;
+	struct imx_media_ipu_internal_sd_pdata *pdata;
 	struct vdic_priv *priv;
 	int ret;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/ipu3/ipu3.c linux-libre-5.1.21-gnu/drivers/staging/media/ipu3/ipu3.c
--- linux-libre-5.1-gnu/drivers/staging/media/ipu3/ipu3.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/ipu3/ipu3.c	2019-07-28 02:28:39.000000000 -0400
@@ -791,7 +791,7 @@ out:
  * PCI rpm framework checks the existence of driver rpm callbacks.
  * Place a dummy callback here to avoid rpm going into error state.
  */
-static int imgu_rpm_dummy_cb(struct device *dev)
+static __maybe_unused int imgu_rpm_dummy_cb(struct device *dev)
 {
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c linux-libre-5.1.21-gnu/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c
--- linux-libre-5.1-gnu/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c	2019-07-28 02:28:39.000000000 -0400
@@ -481,15 +481,18 @@ static int rockchip_vpu_probe(struct pla
 	return 0;
 err_video_dev_unreg:
 	if (vpu->vfd_enc) {
+		v4l2_m2m_unregister_media_controller(vpu->m2m_dev);
 		video_unregister_device(vpu->vfd_enc);
 		video_device_release(vpu->vfd_enc);
 	}
 err_m2m_rel:
+	media_device_cleanup(&vpu->mdev);
 	v4l2_m2m_release(vpu->m2m_dev);
 err_v4l2_unreg:
 	v4l2_device_unregister(&vpu->v4l2_dev);
 err_clk_unprepare:
 	clk_bulk_unprepare(vpu->variant->num_clocks, vpu->clocks);
+	pm_runtime_dont_use_autosuspend(vpu->dev);
 	pm_runtime_disable(vpu->dev);
 	return ret;
 }
@@ -501,15 +504,16 @@ static int rockchip_vpu_remove(struct pl
 	v4l2_info(&vpu->v4l2_dev, "Removing %s\n", pdev->name);
 
 	media_device_unregister(&vpu->mdev);
-	v4l2_m2m_unregister_media_controller(vpu->m2m_dev);
-	v4l2_m2m_release(vpu->m2m_dev);
-	media_device_cleanup(&vpu->mdev);
 	if (vpu->vfd_enc) {
+		v4l2_m2m_unregister_media_controller(vpu->m2m_dev);
 		video_unregister_device(vpu->vfd_enc);
 		video_device_release(vpu->vfd_enc);
 	}
+	media_device_cleanup(&vpu->mdev);
+	v4l2_m2m_release(vpu->m2m_dev);
 	v4l2_device_unregister(&vpu->v4l2_dev);
 	clk_bulk_unprepare(vpu->variant->num_clocks, vpu->clocks);
+	pm_runtime_dont_use_autosuspend(vpu->dev);
 	pm_runtime_disable(vpu->dev);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/sunxi/cedrus/cedrus.h linux-libre-5.1.21-gnu/drivers/staging/media/sunxi/cedrus/cedrus.h
--- linux-libre-5.1-gnu/drivers/staging/media/sunxi/cedrus/cedrus.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/sunxi/cedrus/cedrus.h	2019-07-28 02:28:39.000000000 -0400
@@ -28,6 +28,8 @@
 
 #define CEDRUS_CAPABILITY_UNTILED	BIT(0)
 
+#define CEDRUS_QUIRK_NO_DMA_OFFSET	BIT(0)
+
 enum cedrus_codec {
 	CEDRUS_CODEC_MPEG2,
 
@@ -91,6 +93,7 @@ struct cedrus_dec_ops {
 
 struct cedrus_variant {
 	unsigned int	capabilities;
+	unsigned int	quirks;
 };
 
 struct cedrus_dev {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/media/sunxi/cedrus/cedrus_hw.c linux-libre-5.1.21-gnu/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
--- linux-libre-5.1-gnu/drivers/staging/media/sunxi/cedrus/cedrus_hw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/media/sunxi/cedrus/cedrus_hw.c	2019-07-28 02:28:39.000000000 -0400
@@ -177,7 +177,8 @@ int cedrus_hw_probe(struct cedrus_dev *d
 	 */
 
 #ifdef PHYS_PFN_OFFSET
-	dev->dev->dma_pfn_offset = PHYS_PFN_OFFSET;
+	if (!(variant->quirks & CEDRUS_QUIRK_NO_DMA_OFFSET))
+		dev->dev->dma_pfn_offset = PHYS_PFN_OFFSET;
 #endif
 
 	ret = of_reserved_mem_device_init(dev->dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/most/cdev/cdev.c linux-libre-5.1.21-gnu/drivers/staging/most/cdev/cdev.c
--- linux-libre-5.1-gnu/drivers/staging/most/cdev/cdev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/most/cdev/cdev.c	2019-07-28 02:28:39.000000000 -0400
@@ -549,7 +549,7 @@ static void __exit mod_exit(void)
 		destroy_cdev(c);
 		destroy_channel(c);
 	}
-	unregister_chrdev_region(comp.devno, 1);
+	unregister_chrdev_region(comp.devno, CHRDEV_REGION_SIZE);
 	ida_destroy(&comp.minor_id);
 	class_destroy(comp.class);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/most/sound/sound.c linux-libre-5.1.21-gnu/drivers/staging/most/sound/sound.c
--- linux-libre-5.1-gnu/drivers/staging/most/sound/sound.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/most/sound/sound.c	2019-07-28 02:28:39.000000000 -0400
@@ -622,7 +622,7 @@ static int audio_probe_channel(struct mo
 	INIT_LIST_HEAD(&adpt->dev_list);
 	iface->priv = adpt;
 	list_add_tail(&adpt->list, &adpt_list);
-	ret = snd_card_new(&iface->dev, -1, "INIC", THIS_MODULE,
+	ret = snd_card_new(iface->driver_dev, -1, "INIC", THIS_MODULE,
 			   sizeof(*channel), &adpt->card);
 	if (ret < 0)
 		goto err_free_adpt;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/mt7621-mmc/sd.c linux-libre-5.1.21-gnu/drivers/staging/mt7621-mmc/sd.c
--- linux-libre-5.1-gnu/drivers/staging/mt7621-mmc/sd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/mt7621-mmc/sd.c	2019-07-28 02:28:39.000000000 -0400
@@ -468,7 +468,11 @@ static unsigned int msdc_command_start(s
 	host->cmd     = cmd;
 	host->cmd_rsp = resp;
 
-	init_completion(&host->cmd_done);
+	// The completion should have been consumed by the previous command
+	// response handler, because the mmc requests should be serialized
+	if (completion_done(&host->cmd_done))
+		dev_err(mmc_dev(host->mmc),
+			"previous command was not handled\n");
 
 	sdr_set_bits(host->base + MSDC_INTEN, wints);
 	sdc_send_cmd(rawcmd, cmd->arg);
@@ -490,7 +494,6 @@ static unsigned int msdc_command_resp(st
 		    MSDC_INT_ACMD19_DONE;
 
 	BUG_ON(in_interrupt());
-	//init_completion(&host->cmd_done);
 	//sdr_set_bits(host->base + MSDC_INTEN, wints);
 
 	spin_unlock(&host->lock);
@@ -593,8 +596,6 @@ static void msdc_dma_setup(struct msdc_h
 	struct bd *bd;
 	u32 j;
 
-	BUG_ON(sglen > MAX_BD_NUM); /* not support currently */
-
 	gpd = dma->gpd;
 	bd  = dma->bd;
 
@@ -674,7 +675,13 @@ static int msdc_do_request(struct mmc_ho
 		//msdc_clr_fifo(host);  /* no need */
 
 		msdc_dma_on();  /* enable DMA mode first!! */
-		init_completion(&host->xfer_done);
+
+		// The completion should have been consumed by the previous
+		// xfer response handler, because the mmc requests should be
+		// serialized
+		if (completion_done(&host->cmd_done))
+			dev_err(mmc_dev(host->mmc),
+				"previous transfer was not handled\n");
 
 		/* start the command first*/
 		if (msdc_command_start(host, cmd, CMD_TIMEOUT) != 0)
@@ -683,6 +690,13 @@ static int msdc_do_request(struct mmc_ho
 		data->sg_count = dma_map_sg(mmc_dev(mmc), data->sg,
 					    data->sg_len,
 					    mmc_get_dma_dir(data));
+
+		if (data->sg_count == 0) {
+			dev_err(mmc_dev(host->mmc), "failed to map DMA for transfer\n");
+			data->error = -ENOMEM;
+			goto done;
+		}
+
 		msdc_dma_setup(host, &host->dma, data->sg,
 			       data->sg_count);
 
@@ -693,7 +707,6 @@ static int msdc_do_request(struct mmc_ho
 		/* for read, the data coming too fast, then CRC error
 		 *  start DMA no business with CRC.
 		 */
-		//init_completion(&host->xfer_done);
 		msdc_dma_start(host);
 
 		spin_unlock(&host->lock);
@@ -1688,6 +1701,8 @@ static int msdc_drv_probe(struct platfor
 	}
 	msdc_init_gpd_bd(host, &host->dma);
 
+	init_completion(&host->cmd_done);
+	init_completion(&host->xfer_done);
 	INIT_DELAYED_WORK(&host->card_delaywork, msdc_tasklet_card);
 	spin_lock_init(&host->lock);
 	msdc_init_hw(host);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/mt7621-pci/pci-mt7621.c linux-libre-5.1.21-gnu/drivers/staging/mt7621-pci/pci-mt7621.c
--- linux-libre-5.1-gnu/drivers/staging/mt7621-pci/pci-mt7621.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/mt7621-pci/pci-mt7621.c	2019-07-28 02:28:39.000000000 -0400
@@ -40,7 +40,7 @@
 /* MediaTek specific configuration registers */
 #define PCIE_FTS_NUM			0x70c
 #define PCIE_FTS_NUM_MASK		GENMASK(15, 8)
-#define PCIE_FTS_NUM_L0(x)		((x) & 0xff << 8)
+#define PCIE_FTS_NUM_L0(x)		(((x) & 0xff) << 8)
 
 /* rt_sysc_membase relative registers */
 #define RALINK_PCIE_CLK_GEN		0x7c
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/rtl8712/rtl871x_ioctl_linux.c linux-libre-5.1.21-gnu/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
--- linux-libre-5.1-gnu/drivers/staging/rtl8712/rtl871x_ioctl_linux.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/rtl8712/rtl871x_ioctl_linux.c	2019-07-28 02:28:39.000000000 -0400
@@ -124,10 +124,91 @@ static inline void handle_group_key(stru
 	}
 }
 
-static noinline_for_stack char *translate_scan(struct _adapter *padapter,
-				   struct iw_request_info *info,
-				   struct wlan_network *pnetwork,
-				   char *start, char *stop)
+static noinline_for_stack char *translate_scan_wpa(struct iw_request_info *info,
+						   struct wlan_network *pnetwork,
+						   struct iw_event *iwe,
+						   char *start, char *stop)
+{
+	/* parsing WPA/WPA2 IE */
+	u8 buf[MAX_WPA_IE_LEN];
+	u8 wpa_ie[255], rsn_ie[255];
+	u16 wpa_len = 0, rsn_len = 0;
+	int n, i;
+
+	r8712_get_sec_ie(pnetwork->network.IEs,
+			 pnetwork->network.IELength, rsn_ie, &rsn_len,
+			 wpa_ie, &wpa_len);
+	if (wpa_len > 0) {
+		memset(buf, 0, MAX_WPA_IE_LEN);
+		n = sprintf(buf, "wpa_ie=");
+		for (i = 0; i < wpa_len; i++) {
+			n += snprintf(buf + n, MAX_WPA_IE_LEN - n,
+						"%02x", wpa_ie[i]);
+			if (n >= MAX_WPA_IE_LEN)
+				break;
+		}
+		memset(iwe, 0, sizeof(*iwe));
+		iwe->cmd = IWEVCUSTOM;
+		iwe->u.data.length = (u16)strlen(buf);
+		start = iwe_stream_add_point(info, start, stop,
+			iwe, buf);
+		memset(iwe, 0, sizeof(*iwe));
+		iwe->cmd = IWEVGENIE;
+		iwe->u.data.length = (u16)wpa_len;
+		start = iwe_stream_add_point(info, start, stop,
+			iwe, wpa_ie);
+	}
+	if (rsn_len > 0) {
+		memset(buf, 0, MAX_WPA_IE_LEN);
+		n = sprintf(buf, "rsn_ie=");
+		for (i = 0; i < rsn_len; i++) {
+			n += snprintf(buf + n, MAX_WPA_IE_LEN - n,
+						"%02x", rsn_ie[i]);
+			if (n >= MAX_WPA_IE_LEN)
+				break;
+		}
+		memset(iwe, 0, sizeof(*iwe));
+		iwe->cmd = IWEVCUSTOM;
+		iwe->u.data.length = strlen(buf);
+		start = iwe_stream_add_point(info, start, stop,
+			iwe, buf);
+		memset(iwe, 0, sizeof(*iwe));
+		iwe->cmd = IWEVGENIE;
+		iwe->u.data.length = rsn_len;
+		start = iwe_stream_add_point(info, start, stop, iwe,
+			rsn_ie);
+	}
+
+	return start;
+}
+
+static noinline_for_stack char *translate_scan_wps(struct iw_request_info *info,
+						   struct wlan_network *pnetwork,
+						   struct iw_event *iwe,
+						   char *start, char *stop)
+{
+	/* parsing WPS IE */
+	u8 wps_ie[512];
+	uint wps_ielen;
+
+	if (r8712_get_wps_ie(pnetwork->network.IEs,
+	    pnetwork->network.IELength,
+	    wps_ie, &wps_ielen)) {
+		if (wps_ielen > 2) {
+			iwe->cmd = IWEVGENIE;
+			iwe->u.data.length = (u16)wps_ielen;
+			start = iwe_stream_add_point(info, start, stop,
+				iwe, wps_ie);
+		}
+	}
+
+	return start;
+}
+
+static char *translate_scan(struct _adapter *padapter,
+			    struct iw_request_info *info,
+			    struct wlan_network *pnetwork,
+			    char *start, char *stop)
 {
 	struct iw_event iwe;
 	struct ieee80211_ht_cap *pht_capie;
@@ -240,73 +321,11 @@ static noinline_for_stack char *translat
 	/* Check if we added any event */
 	if ((current_val - start) > iwe_stream_lcp_len(info))
 		start = current_val;
-	/* parsing WPA/WPA2 IE */
-	{
-		u8 buf[MAX_WPA_IE_LEN];
-		u8 wpa_ie[255], rsn_ie[255];
-		u16 wpa_len = 0, rsn_len = 0;
-		int n;
 
-		r8712_get_sec_ie(pnetwork->network.IEs,
-				 pnetwork->network.IELength, rsn_ie, &rsn_len,
-				 wpa_ie, &wpa_len);
-		if (wpa_len > 0) {
-			memset(buf, 0, MAX_WPA_IE_LEN);
-			n = sprintf(buf, "wpa_ie=");
-			for (i = 0; i < wpa_len; i++) {
-				n += snprintf(buf + n, MAX_WPA_IE_LEN - n,
-							"%02x", wpa_ie[i]);
-				if (n >= MAX_WPA_IE_LEN)
-					break;
-			}
-			memset(&iwe, 0, sizeof(iwe));
-			iwe.cmd = IWEVCUSTOM;
-			iwe.u.data.length = (u16)strlen(buf);
-			start = iwe_stream_add_point(info, start, stop,
-				&iwe, buf);
-			memset(&iwe, 0, sizeof(iwe));
-			iwe.cmd = IWEVGENIE;
-			iwe.u.data.length = (u16)wpa_len;
-			start = iwe_stream_add_point(info, start, stop,
-				&iwe, wpa_ie);
-		}
-		if (rsn_len > 0) {
-			memset(buf, 0, MAX_WPA_IE_LEN);
-			n = sprintf(buf, "rsn_ie=");
-			for (i = 0; i < rsn_len; i++) {
-				n += snprintf(buf + n, MAX_WPA_IE_LEN - n,
-							"%02x", rsn_ie[i]);
-				if (n >= MAX_WPA_IE_LEN)
-					break;
-			}
-			memset(&iwe, 0, sizeof(iwe));
-			iwe.cmd = IWEVCUSTOM;
-			iwe.u.data.length = strlen(buf);
-			start = iwe_stream_add_point(info, start, stop,
-				&iwe, buf);
-			memset(&iwe, 0, sizeof(iwe));
-			iwe.cmd = IWEVGENIE;
-			iwe.u.data.length = rsn_len;
-			start = iwe_stream_add_point(info, start, stop, &iwe,
-				rsn_ie);
-		}
-	}
+	start = translate_scan_wpa(info, pnetwork, &iwe, start, stop);
 
-	{ /* parsing WPS IE */
-		u8 wps_ie[512];
-		uint wps_ielen;
+	start = translate_scan_wps(info, pnetwork, &iwe, start, stop);
 
-		if (r8712_get_wps_ie(pnetwork->network.IEs,
-		    pnetwork->network.IELength,
-		    wps_ie, &wps_ielen)) {
-			if (wps_ielen > 2) {
-				iwe.cmd = IWEVGENIE;
-				iwe.u.data.length = (u16)wps_ielen;
-				start = iwe_stream_add_point(info, start, stop,
-					&iwe, wps_ie);
-			}
-		}
-	}
 	/* Add quality statistics */
 	iwe.cmd = IWEVQUAL;
 	rssi = r8712_signal_scale_mapping(pnetwork->network.Rssi);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c linux-libre-5.1.21-gnu/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
--- linux-libre-5.1-gnu/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c	2019-07-28 02:28:39.000000000 -0400
@@ -337,16 +337,13 @@ static void buffer_cb(struct vchiq_mmal_
 		return;
 	} else if (length == 0) {
 		/* stream ended */
-		if (buf) {
-			/* this should only ever happen if the port is
-			 * disabled and there are buffers still queued
+		if (dev->capture.frame_count) {
+			/* empty buffer whilst capturing - expected to be an
+			 * EOS, so grab another frame
 			 */
-			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
-			pr_debug("Empty buffer");
-		} else if (dev->capture.frame_count) {
-			/* grab another frame */
 			if (is_capturing(dev)) {
-				pr_debug("Grab another frame");
+				v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
+					 "Grab another frame");
 				vchiq_mmal_port_parameter_set(
 					instance,
 					dev->capture.camera_port,
@@ -354,8 +351,14 @@ static void buffer_cb(struct vchiq_mmal_
 					&dev->capture.frame_count,
 					sizeof(dev->capture.frame_count));
 			}
+			if (vchiq_mmal_submit_buffer(instance, port, buf))
+				v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
+					 "Failed to return EOS buffer");
 		} else {
-			/* signal frame completion */
+			/* stopping streaming.
+			 * return buffer, and signal frame completion
+			 */
+			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 			complete(&dev->capture.frame_cmplt);
 		}
 	} else {
@@ -577,6 +580,7 @@ static void stop_streaming(struct vb2_qu
 	int ret;
 	unsigned long timeout;
 	struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
+	struct vchiq_mmal_port *port = dev->capture.port;
 
 	v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n",
 		 __func__, dev);
@@ -600,12 +604,6 @@ static void stop_streaming(struct vb2_qu
 				      &dev->capture.frame_count,
 				      sizeof(dev->capture.frame_count));
 
-	/* wait for last frame to complete */
-	timeout = wait_for_completion_timeout(&dev->capture.frame_cmplt, HZ);
-	if (timeout == 0)
-		v4l2_err(&dev->v4l2_dev,
-			 "timed out waiting for frame completion\n");
-
 	v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
 		 "disabling connection\n");
 
@@ -620,6 +618,21 @@ static void stop_streaming(struct vb2_qu
 			 ret);
 	}
 
+	/* wait for all buffers to be returned */
+	while (atomic_read(&port->buffers_with_vpu)) {
+		v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
+			 "%s: Waiting for buffers to be returned - %d outstanding\n",
+			 __func__, atomic_read(&port->buffers_with_vpu));
+		timeout = wait_for_completion_timeout(&dev->capture.frame_cmplt,
+						      HZ);
+		if (timeout == 0) {
+			v4l2_err(&dev->v4l2_dev, "%s: Timeout waiting for buffers to be returned - %d outstanding\n",
+				 __func__,
+				 atomic_read(&port->buffers_with_vpu));
+			break;
+		}
+	}
+
 	if (disable_camera(dev) < 0)
 		v4l2_err(&dev->v4l2_dev, "Failed to disable camera\n");
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/vc04_services/bcm2835-camera/controls.c linux-libre-5.1.21-gnu/drivers/staging/vc04_services/bcm2835-camera/controls.c
--- linux-libre-5.1-gnu/drivers/staging/vc04_services/bcm2835-camera/controls.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/vc04_services/bcm2835-camera/controls.c	2019-07-28 02:28:39.000000000 -0400
@@ -576,7 +576,7 @@ exit:
 				dev->colourfx.enable ? "true" : "false",
 				dev->colourfx.u, dev->colourfx.v,
 				ret, (ret == 0 ? 0 : -EINVAL));
-	return (ret == 0 ? 0 : EINVAL);
+	return (ret == 0 ? 0 : -EINVAL);
 }
 
 static int ctrl_set_colfx(struct bm2835_mmal_dev *dev,
@@ -600,7 +600,7 @@ static int ctrl_set_colfx(struct bm2835_
 		 "%s: After: mmal_ctrl:%p ctrl id:0x%x ctrl val:%d ret %d(%d)\n",
 			__func__, mmal_ctrl, ctrl->id, ctrl->val, ret,
 			(ret == 0 ? 0 : -EINVAL));
-	return (ret == 0 ? 0 : EINVAL);
+	return (ret == 0 ? 0 : -EINVAL);
 }
 
 static int ctrl_set_bitrate(struct bm2835_mmal_dev *dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c linux-libre-5.1.21-gnu/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c
--- linux-libre-5.1-gnu/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c	2019-07-28 02:28:39.000000000 -0400
@@ -161,7 +161,8 @@ struct vchiq_mmal_instance {
 	void *bulk_scratch;
 
 	struct idr context_map;
-	spinlock_t context_map_lock;
+	/* protect accesses to context_map */
+	struct mutex context_map_lock;
 
 	/* component to use next */
 	int component_idx;
@@ -184,10 +185,10 @@ get_msg_context(struct vchiq_mmal_instan
 	 * that when we service the VCHI reply, we can look up what
 	 * message is being replied to.
 	 */
-	spin_lock(&instance->context_map_lock);
+	mutex_lock(&instance->context_map_lock);
 	handle = idr_alloc(&instance->context_map, msg_context,
 			   0, 0, GFP_KERNEL);
-	spin_unlock(&instance->context_map_lock);
+	mutex_unlock(&instance->context_map_lock);
 
 	if (handle < 0) {
 		kfree(msg_context);
@@ -211,9 +212,9 @@ release_msg_context(struct mmal_msg_cont
 {
 	struct vchiq_mmal_instance *instance = msg_context->instance;
 
-	spin_lock(&instance->context_map_lock);
+	mutex_lock(&instance->context_map_lock);
 	idr_remove(&instance->context_map, msg_context->handle);
-	spin_unlock(&instance->context_map_lock);
+	mutex_unlock(&instance->context_map_lock);
 	kfree(msg_context);
 }
 
@@ -239,6 +240,8 @@ static void buffer_work_cb(struct work_s
 	struct mmal_msg_context *msg_context =
 		container_of(work, struct mmal_msg_context, u.bulk.work);
 
+	atomic_dec(&msg_context->u.bulk.port->buffers_with_vpu);
+
 	msg_context->u.bulk.port->buffer_cb(msg_context->u.bulk.instance,
 					    msg_context->u.bulk.port,
 					    msg_context->u.bulk.status,
@@ -287,8 +290,6 @@ static int bulk_receive(struct vchiq_mma
 
 	/* store length */
 	msg_context->u.bulk.buffer_used = rd_len;
-	msg_context->u.bulk.mmal_flags =
-	    msg->u.buffer_from_host.buffer_header.flags;
 	msg_context->u.bulk.dts = msg->u.buffer_from_host.buffer_header.dts;
 	msg_context->u.bulk.pts = msg->u.buffer_from_host.buffer_header.pts;
 
@@ -379,6 +380,8 @@ buffer_from_host(struct vchiq_mmal_insta
 	/* initialise work structure ready to schedule callback */
 	INIT_WORK(&msg_context->u.bulk.work, buffer_work_cb);
 
+	atomic_inc(&port->buffers_with_vpu);
+
 	/* prep the buffer from host message */
 	memset(&m, 0xbc, sizeof(m));	/* just to make debug clearer */
 
@@ -447,6 +450,9 @@ static void buffer_to_host_cb(struct vch
 		return;
 	}
 
+	msg_context->u.bulk.mmal_flags =
+				msg->u.buffer_from_host.buffer_header.flags;
+
 	if (msg->h.status != MMAL_MSG_STATUS_SUCCESS) {
 		/* message reception had an error */
 		pr_warn("error %d in reply\n", msg->h.status);
@@ -1323,16 +1329,6 @@ static int port_enable(struct vchiq_mmal
 	if (port->enabled)
 		return 0;
 
-	/* ensure there are enough buffers queued to cover the buffer headers */
-	if (port->buffer_cb) {
-		hdr_count = 0;
-		list_for_each(buf_head, &port->buffers) {
-			hdr_count++;
-		}
-		if (hdr_count < port->current_buffer.num)
-			return -ENOSPC;
-	}
-
 	ret = port_action_port(instance, port,
 			       MMAL_MSG_PORT_ACTION_TYPE_ENABLE);
 	if (ret)
@@ -1849,7 +1845,7 @@ int vchiq_mmal_init(struct vchiq_mmal_in
 
 	instance->bulk_scratch = vmalloc(PAGE_SIZE);
 
-	spin_lock_init(&instance->context_map_lock);
+	mutex_init(&instance->context_map_lock);
 	idr_init_base(&instance->context_map, 1);
 
 	params.callback_param = instance;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h linux-libre-5.1.21-gnu/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h
--- linux-libre-5.1-gnu/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h	2019-07-28 02:28:39.000000000 -0400
@@ -71,6 +71,9 @@ struct vchiq_mmal_port {
 	struct list_head buffers;
 	/* lock to serialise adding and removing buffers from list */
 	spinlock_t slock;
+
+	/* Count of buffers the VPU has yet to return */
+	atomic_t buffers_with_vpu;
 	/* callback on buffer completion */
 	vchiq_mmal_buffer_cb buffer_cb;
 	/* callback context */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c linux-libre-5.1.21-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
--- linux-libre-5.1-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c	2019-07-28 02:28:39.000000000 -0400
@@ -209,6 +209,9 @@ vchiq_platform_init_state(struct vchiq_s
 	struct vchiq_2835_state *platform_state;
 
 	state->platform_state = kzalloc(sizeof(*platform_state), GFP_KERNEL);
+	if (!state->platform_state)
+		return VCHIQ_ERROR;
+
 	platform_state = (struct vchiq_2835_state *)state->platform_state;
 
 	platform_state->inited = 1;
@@ -395,9 +398,18 @@ create_pagelist(char __user *buf, size_t
 	int dma_buffers;
 	dma_addr_t dma_addr;
 
+	if (count >= INT_MAX - PAGE_SIZE)
+		return NULL;
+
 	offset = ((unsigned int)(unsigned long)buf & (PAGE_SIZE - 1));
 	num_pages = DIV_ROUND_UP(count + offset, PAGE_SIZE);
 
+	if (num_pages > (SIZE_MAX - sizeof(struct pagelist) -
+			 sizeof(struct vchiq_pagelist_info)) /
+			(sizeof(u32) + sizeof(pages[0]) +
+			 sizeof(struct scatterlist)))
+		return NULL;
+
 	pagelist_size = sizeof(struct pagelist) +
 			(num_pages * sizeof(u32)) +
 			(num_pages * sizeof(pages[0]) +
@@ -541,7 +553,7 @@ create_pagelist(char __user *buf, size_t
 		(g_cache_line_size - 1)))) {
 		char *fragments;
 
-		if (down_killable(&g_free_fragments_sema)) {
+		if (down_interruptible(&g_free_fragments_sema) != 0) {
 			cleanup_pagelistinfo(pagelistinfo);
 			return NULL;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c linux-libre-5.1.21-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
--- linux-libre-5.1-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c	2019-07-28 02:28:39.000000000 -0400
@@ -560,7 +560,8 @@ add_completion(VCHIQ_INSTANCE_T instance
 		vchiq_log_trace(vchiq_arm_log_level,
 			"%s - completion queue full", __func__);
 		DEBUG_COUNT(COMPLETION_QUEUE_FULL_COUNT);
-		if (wait_for_completion_killable( &instance->remove_event)) {
+		if (wait_for_completion_interruptible(
+					&instance->remove_event)) {
 			vchiq_log_info(vchiq_arm_log_level,
 				"service_callback interrupted");
 			return VCHIQ_RETRY;
@@ -671,7 +672,7 @@ service_callback(VCHIQ_REASON_T reason,
 			}
 
 			DEBUG_TRACE(SERVICE_CALLBACK_LINE);
-			if (wait_for_completion_killable(
+			if (wait_for_completion_interruptible(
 						&user_service->remove_event)
 				!= 0) {
 				vchiq_log_info(vchiq_arm_log_level,
@@ -1006,7 +1007,7 @@ vchiq_ioctl(struct file *file, unsigned
 		   has been closed until the client library calls the
 		   CLOSE_DELIVERED ioctl, signalling close_event. */
 		if (user_service->close_pending &&
-			wait_for_completion_killable(
+			wait_for_completion_interruptible(
 				&user_service->close_event))
 			status = VCHIQ_RETRY;
 		break;
@@ -1182,7 +1183,7 @@ vchiq_ioctl(struct file *file, unsigned
 
 			DEBUG_TRACE(AWAIT_COMPLETION_LINE);
 			mutex_unlock(&instance->completion_mutex);
-			rc = wait_for_completion_killable(
+			rc = wait_for_completion_interruptible(
 						&instance->insert_event);
 			mutex_lock(&instance->completion_mutex);
 			if (rc != 0) {
@@ -1352,7 +1353,7 @@ vchiq_ioctl(struct file *file, unsigned
 			do {
 				spin_unlock(&msg_queue_spinlock);
 				DEBUG_TRACE(DEQUEUE_MESSAGE_LINE);
-				if (wait_for_completion_killable(
+				if (wait_for_completion_interruptible(
 					&user_service->insert_event)) {
 					vchiq_log_info(vchiq_arm_log_level,
 						"DEQUEUE_MESSAGE interrupted");
@@ -2360,7 +2361,7 @@ vchiq_keepalive_thread_func(void *v)
 	while (1) {
 		long rc = 0, uc = 0;
 
-		if (wait_for_completion_killable(&arm_state->ka_evt)
+		if (wait_for_completion_interruptible(&arm_state->ka_evt)
 				!= 0) {
 			vchiq_log_error(vchiq_susp_log_level,
 				"%s interrupted", __func__);
@@ -2611,7 +2612,7 @@ block_resume(struct vchiq_arm_state *arm
 		write_unlock_bh(&arm_state->susp_res_lock);
 		vchiq_log_info(vchiq_susp_log_level, "%s wait for previously "
 			"blocked clients", __func__);
-		if (wait_for_completion_killable_timeout(
+		if (wait_for_completion_interruptible_timeout(
 				&arm_state->blocked_blocker, timeout_val)
 					<= 0) {
 			vchiq_log_error(vchiq_susp_log_level, "%s wait for "
@@ -2637,7 +2638,7 @@ block_resume(struct vchiq_arm_state *arm
 		write_unlock_bh(&arm_state->susp_res_lock);
 		vchiq_log_info(vchiq_susp_log_level, "%s wait for resume",
 			__func__);
-		if (wait_for_completion_killable_timeout(
+		if (wait_for_completion_interruptible_timeout(
 				&arm_state->vc_resume_complete, timeout_val)
 					<= 0) {
 			vchiq_log_error(vchiq_susp_log_level, "%s wait for "
@@ -2844,7 +2845,7 @@ vchiq_arm_force_suspend(struct vchiq_sta
 	do {
 		write_unlock_bh(&arm_state->susp_res_lock);
 
-		rc = wait_for_completion_killable_timeout(
+		rc = wait_for_completion_interruptible_timeout(
 				&arm_state->vc_suspend_complete,
 				msecs_to_jiffies(FORCE_SUSPEND_TIMEOUT_MS));
 
@@ -2940,7 +2941,7 @@ vchiq_arm_allow_resume(struct vchiq_stat
 	write_unlock_bh(&arm_state->susp_res_lock);
 
 	if (resume) {
-		if (wait_for_completion_killable(
+		if (wait_for_completion_interruptible(
 			&arm_state->vc_resume_complete) < 0) {
 			vchiq_log_error(vchiq_susp_log_level,
 				"%s interrupted", __func__);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c linux-libre-5.1.21-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
--- linux-libre-5.1-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -425,13 +425,21 @@ remote_event_create(wait_queue_head_t *w
 	init_waitqueue_head(wq);
 }
 
+/*
+ * All the event waiting routines in VCHIQ used a custom semaphore
+ * implementation that filtered most signals. This achieved a behaviour similar
+ * to the "killable" family of functions. While cleaning up this code all the
+ * routines where switched to the "interruptible" family of functions, as the
+ * former was deemed unjustified and the use "killable" set all VCHIQ's
+ * threads in D state.
+ */
 static inline int
 remote_event_wait(wait_queue_head_t *wq, struct remote_event *event)
 {
 	if (!event->fired) {
 		event->armed = 1;
 		dsb(sy);
-		if (wait_event_killable(*wq, event->fired)) {
+		if (wait_event_interruptible(*wq, event->fired)) {
 			event->armed = 0;
 			return 0;
 		}
@@ -590,7 +598,7 @@ reserve_space(struct vchiq_state *state,
 			remote_event_signal(&state->remote->trigger);
 
 			if (!is_blocking ||
-				(wait_for_completion_killable(
+				(wait_for_completion_interruptible(
 				&state->slot_available_event)))
 				return NULL; /* No space available */
 		}
@@ -860,7 +868,7 @@ queue_message(struct vchiq_state *state,
 			spin_unlock(&quota_spinlock);
 			mutex_unlock(&state->slot_mutex);
 
-			if (wait_for_completion_killable(
+			if (wait_for_completion_interruptible(
 						&state->data_quota_event))
 				return VCHIQ_RETRY;
 
@@ -891,7 +899,7 @@ queue_message(struct vchiq_state *state,
 				service_quota->slot_use_count);
 			VCHIQ_SERVICE_STATS_INC(service, quota_stalls);
 			mutex_unlock(&state->slot_mutex);
-			if (wait_for_completion_killable(
+			if (wait_for_completion_interruptible(
 						&service_quota->quota_event))
 				return VCHIQ_RETRY;
 			if (service->closing)
@@ -1740,7 +1748,8 @@ parse_rx_slots(struct vchiq_state *state
 					&service->bulk_rx : &service->bulk_tx;
 
 				DEBUG_TRACE(PARSE_LINE);
-				if (mutex_lock_killable(&service->bulk_mutex)) {
+				if (mutex_lock_killable(
+					&service->bulk_mutex) != 0) {
 					DEBUG_TRACE(PARSE_LINE);
 					goto bail_not_ready;
 				}
@@ -2239,6 +2248,8 @@ vchiq_init_state(struct vchiq_state *sta
 	local->debug[DEBUG_ENTRIES] = DEBUG_MAX;
 
 	status = vchiq_platform_init_state(state);
+	if (status != VCHIQ_SUCCESS)
+		return VCHIQ_ERROR;
 
 	/*
 		bring up slot handler thread
@@ -2456,7 +2467,7 @@ vchiq_open_service_internal(struct vchiq
 			       QMFLAGS_IS_BLOCKING);
 	if (status == VCHIQ_SUCCESS) {
 		/* Wait for the ACK/NAK */
-		if (wait_for_completion_killable(&service->remove_event)) {
+		if (wait_for_completion_interruptible(&service->remove_event)) {
 			status = VCHIQ_RETRY;
 			vchiq_release_service_internal(service);
 		} else if ((service->srvstate != VCHIQ_SRVSTATE_OPEN) &&
@@ -2823,7 +2834,7 @@ vchiq_connect_internal(struct vchiq_stat
 	}
 
 	if (state->conn_state == VCHIQ_CONNSTATE_CONNECTING) {
-		if (wait_for_completion_killable(&state->connect))
+		if (wait_for_completion_interruptible(&state->connect))
 			return VCHIQ_RETRY;
 
 		vchiq_set_conn_state(state, VCHIQ_CONNSTATE_CONNECTED);
@@ -2922,7 +2933,7 @@ vchiq_close_service(VCHIQ_SERVICE_HANDLE
 	}
 
 	while (1) {
-		if (wait_for_completion_killable(&service->remove_event)) {
+		if (wait_for_completion_interruptible(&service->remove_event)) {
 			status = VCHIQ_RETRY;
 			break;
 		}
@@ -2983,7 +2994,7 @@ vchiq_remove_service(VCHIQ_SERVICE_HANDL
 		request_poll(service->state, service, VCHIQ_POLL_REMOVE);
 	}
 	while (1) {
-		if (wait_for_completion_killable(&service->remove_event)) {
+		if (wait_for_completion_interruptible(&service->remove_event)) {
 			status = VCHIQ_RETRY;
 			break;
 		}
@@ -3066,7 +3077,7 @@ VCHIQ_STATUS_T vchiq_bulk_transfer(VCHIQ
 		VCHIQ_SERVICE_STATS_INC(service, bulk_stalls);
 		do {
 			mutex_unlock(&service->bulk_mutex);
-			if (wait_for_completion_killable(
+			if (wait_for_completion_interruptible(
 						&service->bulk_remove_event)) {
 				status = VCHIQ_RETRY;
 				goto error_exit;
@@ -3143,7 +3154,7 @@ waiting:
 
 	if (bulk_waiter) {
 		bulk_waiter->bulk = bulk;
-		if (wait_for_completion_killable(&bulk_waiter->event))
+		if (wait_for_completion_interruptible(&bulk_waiter->event))
 			status = VCHIQ_RETRY;
 		else if (bulk_waiter->actual == VCHIQ_BULK_ACTUAL_ABORTED)
 			status = VCHIQ_ERROR;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c linux-libre-5.1.21-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c
--- linux-libre-5.1-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c	2019-07-28 02:28:39.000000000 -0400
@@ -80,7 +80,7 @@ void vchiu_queue_push(struct vchiu_queue
 		return;
 
 	while (queue->write == queue->read + queue->size) {
-		if (wait_for_completion_killable(&queue->pop))
+		if (wait_for_completion_interruptible(&queue->pop))
 			flush_signals(current);
 	}
 
@@ -93,7 +93,7 @@ void vchiu_queue_push(struct vchiu_queue
 struct vchiq_header *vchiu_queue_peek(struct vchiu_queue *queue)
 {
 	while (queue->write == queue->read) {
-		if (wait_for_completion_killable(&queue->push))
+		if (wait_for_completion_interruptible(&queue->push))
 			flush_signals(current);
 	}
 
@@ -107,7 +107,7 @@ struct vchiq_header *vchiu_queue_pop(str
 	struct vchiq_header *header;
 
 	while (queue->write == queue->read) {
-		if (wait_for_completion_killable(&queue->push))
+		if (wait_for_completion_interruptible(&queue->push))
 			flush_signals(current);
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/wilc1000/wilc_netdev.c linux-libre-5.1.21-gnu/drivers/staging/wilc1000/wilc_netdev.c
--- linux-libre-5.1-gnu/drivers/staging/wilc1000/wilc_netdev.c	2019-05-05 21:40:27.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/wilc1000/wilc_netdev.c	2019-07-28 13:44:04.000000000 -0400
@@ -530,17 +530,17 @@ static int wilc_wlan_initialize(struct n
 			goto fail_locks;
 		}
 
-		if (wl->gpio_irq && init_irq(dev)) {
-			ret = -EIO;
-			goto fail_locks;
-		}
-
 		ret = wlan_initialize_threads(dev);
 		if (ret < 0) {
 			ret = -EIO;
 			goto fail_wilc_wlan;
 		}
 
+		if (wl->gpio_irq && init_irq(dev)) {
+			ret = -EIO;
+			goto fail_threads;
+		}
+
 		if (!wl->dev_irq_num &&
 		    wl->hif_func->enable_interrupt &&
 		    wl->hif_func->enable_interrupt(wl)) {
@@ -596,7 +596,7 @@ fail_irq_enable:
 fail_irq_init:
 		if (wl->dev_irq_num)
 			deinit_irq(dev);
-
+fail_threads:
 		wlan_deinitialize_threads(dev);
 fail_wilc_wlan:
 		wilc_wlan_cleanup(dev);
@@ -708,7 +708,7 @@ static void wilc_set_multicast_list(stru
 		return;
 	}
 
-	mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_KERNEL);
+	mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_ATOMIC);
 	if (!mc_list)
 		return;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/wilc1000/wilc_wlan.c linux-libre-5.1.21-gnu/drivers/staging/wilc1000/wilc_wlan.c
--- linux-libre-5.1-gnu/drivers/staging/wilc1000/wilc_wlan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/wilc1000/wilc_wlan.c	2019-07-28 02:28:39.000000000 -0400
@@ -1076,13 +1076,17 @@ void wilc_wlan_cleanup(struct net_device
 	acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP);
 
 	ret = wilc->hif_func->hif_read_reg(wilc, WILC_GP_REG_0, &reg);
-	if (!ret)
+	if (!ret) {
 		release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
+		return;
+	}
 
 	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_0,
 					(reg | ABORT_INT));
-	if (!ret)
+	if (!ret) {
 		release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
+		return;
+	}
 
 	release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
 	wilc->hif_func->hif_deinit(NULL);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/staging/wlan-ng/hfa384x_usb.c linux-libre-5.1.21-gnu/drivers/staging/wlan-ng/hfa384x_usb.c
--- linux-libre-5.1-gnu/drivers/staging/wlan-ng/hfa384x_usb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/staging/wlan-ng/hfa384x_usb.c	2019-07-28 02:28:39.000000000 -0400
@@ -3119,7 +3119,9 @@ static void hfa384x_usbin_callback(struc
 		break;
 	}
 
+	/* Save values from the RX URB before reposting overwrites it. */
 	urb_status = urb->status;
+	usbin = (union hfa384x_usbin *)urb->transfer_buffer;
 
 	if (action != ABORT) {
 		/* Repost the RX URB */
@@ -3136,7 +3138,6 @@ static void hfa384x_usbin_callback(struc
 	/* Note: the check of the sw_support field, the type field doesn't
 	 *       have bit 12 set like the docs suggest.
 	 */
-	usbin = (union hfa384x_usbin *)urb->transfer_buffer;
 	type = le16_to_cpu(usbin->type);
 	if (HFA384x_USB_ISRXFRM(type)) {
 		if (action == HANDLE) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/target/iscsi/iscsi_target_auth.c linux-libre-5.1.21-gnu/drivers/target/iscsi/iscsi_target_auth.c
--- linux-libre-5.1-gnu/drivers/target/iscsi/iscsi_target_auth.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/target/iscsi/iscsi_target_auth.c	2019-07-28 02:28:39.000000000 -0400
@@ -89,6 +89,12 @@ out:
 	return CHAP_DIGEST_UNKNOWN;
 }
 
+static void chap_close(struct iscsi_conn *conn)
+{
+	kfree(conn->auth_protocol);
+	conn->auth_protocol = NULL;
+}
+
 static struct iscsi_chap *chap_server_open(
 	struct iscsi_conn *conn,
 	struct iscsi_node_auth *auth,
@@ -126,7 +132,7 @@ static struct iscsi_chap *chap_server_op
 	case CHAP_DIGEST_UNKNOWN:
 	default:
 		pr_err("Unsupported CHAP_A value\n");
-		kfree(conn->auth_protocol);
+		chap_close(conn);
 		return NULL;
 	}
 
@@ -141,19 +147,13 @@ static struct iscsi_chap *chap_server_op
 	 * Generate Challenge.
 	 */
 	if (chap_gen_challenge(conn, 1, aic_str, aic_len) < 0) {
-		kfree(conn->auth_protocol);
+		chap_close(conn);
 		return NULL;
 	}
 
 	return chap;
 }
 
-static void chap_close(struct iscsi_conn *conn)
-{
-	kfree(conn->auth_protocol);
-	conn->auth_protocol = NULL;
-}
-
 static int chap_server_compute_md5(
 	struct iscsi_conn *conn,
 	struct iscsi_node_auth *auth,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/target/target_core_iblock.c linux-libre-5.1.21-gnu/drivers/target/target_core_iblock.c
--- linux-libre-5.1-gnu/drivers/target/target_core_iblock.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/target/target_core_iblock.c	2019-07-28 02:28:39.000000000 -0400
@@ -515,7 +515,7 @@ iblock_execute_write_same(struct se_cmd
 
 		/* Always in 512 byte units for Linux/Block */
 		block_lba += sg->length >> SECTOR_SHIFT;
-		sectors -= 1;
+		sectors -= sg->length >> SECTOR_SHIFT;
 	}
 
 	iblock_submit_bios(&list);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/thermal/qcom/tsens.c linux-libre-5.1.21-gnu/drivers/thermal/qcom/tsens.c
--- linux-libre-5.1-gnu/drivers/thermal/qcom/tsens.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/thermal/qcom/tsens.c	2019-07-28 02:28:39.000000000 -0400
@@ -160,7 +160,8 @@ static int tsens_probe(struct platform_d
 	if (tmdev->ops->calibrate) {
 		ret = tmdev->ops->calibrate(tmdev);
 		if (ret < 0) {
-			dev_err(dev, "tsens calibration failed\n");
+			if (ret != -EPROBE_DEFER)
+				dev_err(dev, "tsens calibration failed\n");
 			return ret;
 		}
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/thermal/rcar_gen3_thermal.c linux-libre-5.1.21-gnu/drivers/thermal/rcar_gen3_thermal.c
--- linux-libre-5.1-gnu/drivers/thermal/rcar_gen3_thermal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/thermal/rcar_gen3_thermal.c	2019-07-28 02:28:39.000000000 -0400
@@ -331,6 +331,9 @@ MODULE_DEVICE_TABLE(of, rcar_gen3_therma
 static int rcar_gen3_thermal_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	struct rcar_gen3_thermal_priv *priv = dev_get_drvdata(dev);
+
+	rcar_thermal_irq_set(priv, false);
 
 	pm_runtime_put(dev);
 	pm_runtime_disable(dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/thunderbolt/icm.c linux-libre-5.1.21-gnu/drivers/thunderbolt/icm.c
--- linux-libre-5.1-gnu/drivers/thunderbolt/icm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/thunderbolt/icm.c	2019-07-28 02:28:39.000000000 -0400
@@ -473,6 +473,11 @@ static void add_switch(struct tb_switch
 		goto out;
 
 	sw->uuid = kmemdup(uuid, sizeof(*uuid), GFP_KERNEL);
+	if (!sw->uuid) {
+		tb_sw_warn(sw, "cannot allocate memory for switch\n");
+		tb_switch_put(sw);
+		goto out;
+	}
 	sw->connection_id = connection_id;
 	sw->connection_key = connection_key;
 	sw->link = link;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/thunderbolt/property.c linux-libre-5.1.21-gnu/drivers/thunderbolt/property.c
--- linux-libre-5.1-gnu/drivers/thunderbolt/property.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/thunderbolt/property.c	2019-07-28 02:28:39.000000000 -0400
@@ -548,6 +548,11 @@ int tb_property_add_data(struct tb_prope
 
 	property->length = size / 4;
 	property->value.data = kzalloc(size, GFP_KERNEL);
+	if (!property->value.data) {
+		kfree(property);
+		return -ENOMEM;
+	}
+
 	memcpy(property->value.data, buf, buflen);
 
 	list_add_tail(&property->list, &parent->properties);
@@ -578,7 +583,12 @@ int tb_property_add_text(struct tb_prope
 		return -ENOMEM;
 
 	property->length = size / 4;
-	property->value.data = kzalloc(size, GFP_KERNEL);
+	property->value.text = kzalloc(size, GFP_KERNEL);
+	if (!property->value.text) {
+		kfree(property);
+		return -ENOMEM;
+	}
+
 	strcpy(property->value.text, text);
 
 	list_add_tail(&property->list, &parent->properties);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/thunderbolt/switch.c linux-libre-5.1.21-gnu/drivers/thunderbolt/switch.c
--- linux-libre-5.1-gnu/drivers/thunderbolt/switch.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/thunderbolt/switch.c	2019-07-28 02:28:39.000000000 -0400
@@ -10,15 +10,13 @@
 #include <linux/idr.h>
 #include <linux/nvmem-provider.h>
 #include <linux/pm_runtime.h>
+#include <linux/sched/signal.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 
 #include "tb.h"
 
-/* Switch authorization from userspace is serialized by this lock */
-static DEFINE_MUTEX(switch_lock);
-
 /* Switch NVM support */
 
 #define NVM_DEVID		0x05
@@ -254,8 +252,8 @@ static int tb_switch_nvm_write(void *pri
 	struct tb_switch *sw = priv;
 	int ret = 0;
 
-	if (mutex_lock_interruptible(&switch_lock))
-		return -ERESTARTSYS;
+	if (!mutex_trylock(&sw->tb->lock))
+		return restart_syscall();
 
 	/*
 	 * Since writing the NVM image might require some special steps,
@@ -275,7 +273,7 @@ static int tb_switch_nvm_write(void *pri
 	memcpy(sw->nvm->buf + offset, val, bytes);
 
 unlock:
-	mutex_unlock(&switch_lock);
+	mutex_unlock(&sw->tb->lock);
 
 	return ret;
 }
@@ -364,10 +362,7 @@ static int tb_switch_nvm_add(struct tb_s
 	}
 	nvm->non_active = nvm_dev;
 
-	mutex_lock(&switch_lock);
 	sw->nvm = nvm;
-	mutex_unlock(&switch_lock);
-
 	return 0;
 
 err_nvm_active:
@@ -384,10 +379,8 @@ static void tb_switch_nvm_remove(struct
 {
 	struct tb_switch_nvm *nvm;
 
-	mutex_lock(&switch_lock);
 	nvm = sw->nvm;
 	sw->nvm = NULL;
-	mutex_unlock(&switch_lock);
 
 	if (!nvm)
 		return;
@@ -716,8 +709,8 @@ static int tb_switch_set_authorized(stru
 {
 	int ret = -EINVAL;
 
-	if (mutex_lock_interruptible(&switch_lock))
-		return -ERESTARTSYS;
+	if (!mutex_trylock(&sw->tb->lock))
+		return restart_syscall();
 
 	if (sw->authorized)
 		goto unlock;
@@ -760,7 +753,7 @@ static int tb_switch_set_authorized(stru
 	}
 
 unlock:
-	mutex_unlock(&switch_lock);
+	mutex_unlock(&sw->tb->lock);
 	return ret;
 }
 
@@ -817,15 +810,15 @@ static ssize_t key_show(struct device *d
 	struct tb_switch *sw = tb_to_switch(dev);
 	ssize_t ret;
 
-	if (mutex_lock_interruptible(&switch_lock))
-		return -ERESTARTSYS;
+	if (!mutex_trylock(&sw->tb->lock))
+		return restart_syscall();
 
 	if (sw->key)
 		ret = sprintf(buf, "%*phN\n", TB_SWITCH_KEY_SIZE, sw->key);
 	else
 		ret = sprintf(buf, "\n");
 
-	mutex_unlock(&switch_lock);
+	mutex_unlock(&sw->tb->lock);
 	return ret;
 }
 
@@ -842,8 +835,8 @@ static ssize_t key_store(struct device *
 	else if (hex2bin(key, buf, sizeof(key)))
 		return -EINVAL;
 
-	if (mutex_lock_interruptible(&switch_lock))
-		return -ERESTARTSYS;
+	if (!mutex_trylock(&sw->tb->lock))
+		return restart_syscall();
 
 	if (sw->authorized) {
 		ret = -EBUSY;
@@ -858,7 +851,7 @@ static ssize_t key_store(struct device *
 		}
 	}
 
-	mutex_unlock(&switch_lock);
+	mutex_unlock(&sw->tb->lock);
 	return ret;
 }
 static DEVICE_ATTR(key, 0600, key_show, key_store);
@@ -904,8 +897,8 @@ static ssize_t nvm_authenticate_store(st
 	bool val;
 	int ret;
 
-	if (mutex_lock_interruptible(&switch_lock))
-		return -ERESTARTSYS;
+	if (!mutex_trylock(&sw->tb->lock))
+		return restart_syscall();
 
 	/* If NVMem devices are not yet added */
 	if (!sw->nvm) {
@@ -953,7 +946,7 @@ static ssize_t nvm_authenticate_store(st
 	}
 
 exit_unlock:
-	mutex_unlock(&switch_lock);
+	mutex_unlock(&sw->tb->lock);
 
 	if (ret)
 		return ret;
@@ -967,8 +960,8 @@ static ssize_t nvm_version_show(struct d
 	struct tb_switch *sw = tb_to_switch(dev);
 	int ret;
 
-	if (mutex_lock_interruptible(&switch_lock))
-		return -ERESTARTSYS;
+	if (!mutex_trylock(&sw->tb->lock))
+		return restart_syscall();
 
 	if (sw->safe_mode)
 		ret = -ENODATA;
@@ -977,7 +970,7 @@ static ssize_t nvm_version_show(struct d
 	else
 		ret = sprintf(buf, "%x.%x\n", sw->nvm->major, sw->nvm->minor);
 
-	mutex_unlock(&switch_lock);
+	mutex_unlock(&sw->tb->lock);
 
 	return ret;
 }
@@ -1294,13 +1287,14 @@ int tb_switch_configure(struct tb_switch
 	return tb_plug_events_active(sw, true);
 }
 
-static void tb_switch_set_uuid(struct tb_switch *sw)
+static int tb_switch_set_uuid(struct tb_switch *sw)
 {
 	u32 uuid[4];
-	int cap;
+	int cap, ret;
 
+	ret = 0;
 	if (sw->uuid)
-		return;
+		return ret;
 
 	/*
 	 * The newer controllers include fused UUID as part of link
@@ -1308,7 +1302,9 @@ static void tb_switch_set_uuid(struct tb
 	 */
 	cap = tb_switch_find_vse_cap(sw, TB_VSE_CAP_LINK_CONTROLLER);
 	if (cap > 0) {
-		tb_sw_read(sw, uuid, TB_CFG_SWITCH, cap + 3, 4);
+		ret = tb_sw_read(sw, uuid, TB_CFG_SWITCH, cap + 3, 4);
+		if (ret)
+			return ret;
 	} else {
 		/*
 		 * ICM generates UUID based on UID and fills the upper
@@ -1323,6 +1319,9 @@ static void tb_switch_set_uuid(struct tb
 	}
 
 	sw->uuid = kmemdup(uuid, sizeof(uuid), GFP_KERNEL);
+	if (!sw->uuid)
+		ret = -ENOMEM;
+	return ret;
 }
 
 static int tb_switch_add_dma_port(struct tb_switch *sw)
@@ -1372,7 +1371,9 @@ static int tb_switch_add_dma_port(struct
 
 	if (status) {
 		tb_sw_info(sw, "switch flash authentication failed\n");
-		tb_switch_set_uuid(sw);
+		ret = tb_switch_set_uuid(sw);
+		if (ret)
+			return ret;
 		nvm_set_auth_status(sw, status);
 	}
 
@@ -1422,7 +1423,9 @@ int tb_switch_add(struct tb_switch *sw)
 		}
 		tb_sw_dbg(sw, "uid: %#llx\n", sw->uid);
 
-		tb_switch_set_uuid(sw);
+		ret = tb_switch_set_uuid(sw);
+		if (ret)
+			return ret;
 
 		for (i = 0; i <= sw->config.max_port_number; i++) {
 			if (sw->ports[i].disabled) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/thunderbolt/tb.h linux-libre-5.1.21-gnu/drivers/thunderbolt/tb.h
--- linux-libre-5.1-gnu/drivers/thunderbolt/tb.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/thunderbolt/tb.h	2019-07-28 02:28:39.000000000 -0400
@@ -80,8 +80,7 @@ struct tb_switch_nvm {
  * @depth: Depth in the chain this switch is connected (ICM only)
  *
  * When the switch is being added or removed to the domain (other
- * switches) you need to have domain lock held. For switch authorization
- * internal switch_lock is enough.
+ * switches) you need to have domain lock held.
  */
 struct tb_switch {
 	struct device dev;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/thunderbolt/xdomain.c linux-libre-5.1.21-gnu/drivers/thunderbolt/xdomain.c
--- linux-libre-5.1-gnu/drivers/thunderbolt/xdomain.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/thunderbolt/xdomain.c	2019-07-28 02:28:39.000000000 -0400
@@ -740,6 +740,7 @@ static void enumerate_services(struct tb
 	struct tb_service *svc;
 	struct tb_property *p;
 	struct device *dev;
+	int id;
 
 	/*
 	 * First remove all services that are not available anymore in
@@ -768,7 +769,12 @@ static void enumerate_services(struct tb
 			break;
 		}
 
-		svc->id = ida_simple_get(&xd->service_ids, 0, 0, GFP_KERNEL);
+		id = ida_simple_get(&xd->service_ids, 0, 0, GFP_KERNEL);
+		if (id < 0) {
+			kfree(svc);
+			break;
+		}
+		svc->id = id;
 		svc->dev.bus = &tb_bus_type;
 		svc->dev.type = &tb_service_type;
 		svc->dev.parent = &xd->dev;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/hvc/hvc_riscv_sbi.c linux-libre-5.1.21-gnu/drivers/tty/hvc/hvc_riscv_sbi.c
--- linux-libre-5.1-gnu/drivers/tty/hvc/hvc_riscv_sbi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/hvc/hvc_riscv_sbi.c	2019-07-28 02:28:39.000000000 -0400
@@ -53,7 +53,6 @@ device_initcall(hvc_sbi_init);
 static int __init hvc_sbi_console_init(void)
 {
 	hvc_instantiate(0, 0, &hvc_sbi_ops);
-	add_preferred_console("hvc", 0, NULL);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/ipwireless/main.c linux-libre-5.1.21-gnu/drivers/tty/ipwireless/main.c
--- linux-libre-5.1-gnu/drivers/tty/ipwireless/main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/ipwireless/main.c	2019-07-28 02:28:39.000000000 -0400
@@ -114,6 +114,10 @@ static int ipwireless_probe(struct pcmci
 
 	ipw->common_memory = ioremap(p_dev->resource[2]->start,
 				resource_size(p_dev->resource[2]));
+	if (!ipw->common_memory) {
+		ret = -ENOMEM;
+		goto exit1;
+	}
 	if (!request_mem_region(p_dev->resource[2]->start,
 				resource_size(p_dev->resource[2]),
 				IPWIRELESS_PCCARD_NAME)) {
@@ -134,6 +138,10 @@ static int ipwireless_probe(struct pcmci
 
 	ipw->attr_memory = ioremap(p_dev->resource[3]->start,
 				resource_size(p_dev->resource[3]));
+	if (!ipw->attr_memory) {
+		ret = -ENOMEM;
+		goto exit3;
+	}
 	if (!request_mem_region(p_dev->resource[3]->start,
 				resource_size(p_dev->resource[3]),
 				IPWIRELESS_PCCARD_NAME)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/rocket.c linux-libre-5.1.21-gnu/drivers/tty/rocket.c
--- linux-libre-5.1-gnu/drivers/tty/rocket.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/rocket.c	2019-07-28 02:28:39.000000000 -0400
@@ -266,7 +266,7 @@ MODULE_PARM_DESC(pc104_3, "set interface
 module_param_array(pc104_4, ulong, NULL, 0);
 MODULE_PARM_DESC(pc104_4, "set interface types for ISA(PC104) board #4 (e.g. pc104_4=232,232,485,485,...");
 
-static int rp_init(void);
+static int __init rp_init(void);
 static void rp_cleanup_module(void);
 
 module_init(rp_init);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/serial/8250/8250_dw.c linux-libre-5.1.21-gnu/drivers/tty/serial/8250/8250_dw.c
--- linux-libre-5.1-gnu/drivers/tty/serial/8250/8250_dw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/serial/8250/8250_dw.c	2019-07-28 02:28:39.000000000 -0400
@@ -365,7 +365,7 @@ static bool dw8250_fallback_dma_filter(s
 
 static bool dw8250_idma_filter(struct dma_chan *chan, void *param)
 {
-	return param == chan->device->dev->parent;
+	return param == chan->device->dev;
 }
 
 /*
@@ -434,7 +434,7 @@ static void dw8250_quirks(struct uart_po
 		data->uart_16550_compatible = true;
 	}
 
-	/* Platforms with iDMA */
+	/* Platforms with iDMA 64-bit */
 	if (platform_get_resource_byname(to_platform_device(p->dev),
 					 IORESOURCE_MEM, "lpss_priv")) {
 		data->dma.rx_param = p->dev->parent;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/serial/8250/8250_port.c linux-libre-5.1.21-gnu/drivers/tty/serial/8250/8250_port.c
--- linux-libre-5.1-gnu/drivers/tty/serial/8250/8250_port.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/serial/8250/8250_port.c	2019-07-28 02:28:39.000000000 -0400
@@ -1869,8 +1869,7 @@ int serial8250_handle_irq(struct uart_po
 
 	status = serial_port_in(port, UART_LSR);
 
-	if (status & (UART_LSR_DR | UART_LSR_BI) &&
-	    iir & UART_IIR_RDI) {
+	if (status & (UART_LSR_DR | UART_LSR_BI)) {
 		if (!up->dma || handle_rx_dma(up, iir))
 			status = serial8250_rx_chars(up, status);
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/serial/max310x.c linux-libre-5.1.21-gnu/drivers/tty/serial/max310x.c
--- linux-libre-5.1-gnu/drivers/tty/serial/max310x.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/serial/max310x.c	2019-07-28 02:28:39.000000000 -0400
@@ -581,7 +581,7 @@ static int max310x_set_ref_clk(struct de
 	}
 
 	/* Configure clock source */
-	clksrc = xtal ? MAX310X_CLKSRC_CRYST_BIT : MAX310X_CLKSRC_EXTCLK_BIT;
+	clksrc = MAX310X_CLKSRC_EXTCLK_BIT | (xtal ? MAX310X_CLKSRC_CRYST_BIT : 0);
 
 	/* Configure PLL */
 	if (pllcfg) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/serial/msm_serial.c linux-libre-5.1.21-gnu/drivers/tty/serial/msm_serial.c
--- linux-libre-5.1-gnu/drivers/tty/serial/msm_serial.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/serial/msm_serial.c	2019-07-28 02:28:39.000000000 -0400
@@ -860,6 +860,7 @@ static void msm_handle_tx(struct uart_po
 	struct circ_buf *xmit = &msm_port->uart.state->xmit;
 	struct msm_dma *dma = &msm_port->tx_dma;
 	unsigned int pio_count, dma_count, dma_min;
+	char buf[4] = { 0 };
 	void __iomem *tf;
 	int err = 0;
 
@@ -869,10 +870,12 @@ static void msm_handle_tx(struct uart_po
 		else
 			tf = port->membase + UART_TF;
 
+		buf[0] = port->x_char;
+
 		if (msm_port->is_uartdm)
 			msm_reset_dm_count(port, 1);
 
-		iowrite8_rep(tf, &port->x_char, 1);
+		iowrite32_rep(tf, buf, 1);
 		port->icount.tx++;
 		port->x_char = 0;
 		return;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/serial/serial_core.c linux-libre-5.1.21-gnu/drivers/tty/serial/serial_core.c
--- linux-libre-5.1-gnu/drivers/tty/serial/serial_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/serial/serial_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -130,9 +130,6 @@ static void uart_start(struct tty_struct
 	struct uart_port *port;
 	unsigned long flags;
 
-	if (!state)
-		return;
-
 	port = uart_port_lock(state, flags);
 	__uart_start(tty);
 	uart_port_unlock(port, flags);
@@ -730,9 +727,6 @@ static void uart_unthrottle(struct tty_s
 	upstat_t mask = UPSTAT_SYNC_FIFO;
 	struct uart_port *port;
 
-	if (!state)
-		return;
-
 	port = uart_port_ref(state);
 	if (!port)
 		return;
@@ -1747,6 +1741,16 @@ static void uart_dtr_rts(struct tty_port
 	uart_port_deref(uport);
 }
 
+static int uart_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+	struct uart_driver *drv = driver->driver_state;
+	struct uart_state *state = drv->state + tty->index;
+
+	tty->driver_data = state;
+
+	return tty_standard_install(driver, tty);
+}
+
 /*
  * Calls to uart_open are serialised by the tty_lock in
  *   drivers/tty/tty_io.c:tty_open()
@@ -1759,11 +1763,8 @@ static void uart_dtr_rts(struct tty_port
  */
 static int uart_open(struct tty_struct *tty, struct file *filp)
 {
-	struct uart_driver *drv = tty->driver->driver_state;
-	int retval, line = tty->index;
-	struct uart_state *state = drv->state + line;
-
-	tty->driver_data = state;
+	struct uart_state *state = tty->driver_data;
+	int retval;
 
 	retval = tty_port_open(&state->port, tty, filp);
 	if (retval > 0)
@@ -2448,6 +2449,7 @@ static void uart_poll_put_char(struct tt
 #endif
 
 static const struct tty_operations uart_ops = {
+	.install	= uart_install,
 	.open		= uart_open,
 	.close		= uart_close,
 	.write		= uart_write,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/serial/sh-sci.c linux-libre-5.1.21-gnu/drivers/tty/serial/sh-sci.c
--- linux-libre-5.1-gnu/drivers/tty/serial/sh-sci.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/serial/sh-sci.c	2019-07-28 02:28:39.000000000 -0400
@@ -1557,6 +1557,13 @@ static void sci_request_dma(struct uart_
 
 	dev_dbg(port->dev, "%s: port %d\n", __func__, port->line);
 
+	/*
+	 * DMA on console may interfere with Kernel log messages which use
+	 * plain putchar(). So, simply don't use it with a console.
+	 */
+	if (uart_console(port))
+		return;
+
 	if (!port->dev->of_node)
 		return;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/serial/sunhv.c linux-libre-5.1.21-gnu/drivers/tty/serial/sunhv.c
--- linux-libre-5.1-gnu/drivers/tty/serial/sunhv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/serial/sunhv.c	2019-07-28 02:28:39.000000000 -0400
@@ -397,7 +397,7 @@ static const struct uart_ops sunhv_pops
 static struct uart_driver sunhv_reg = {
 	.owner			= THIS_MODULE,
 	.driver_name		= "sunhv",
-	.dev_name		= "ttyS",
+	.dev_name		= "ttyHV",
 	.major			= TTY_MAJOR,
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/vt/keyboard.c linux-libre-5.1.21-gnu/drivers/tty/vt/keyboard.c
--- linux-libre-5.1-gnu/drivers/tty/vt/keyboard.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/vt/keyboard.c	2019-07-28 02:28:39.000000000 -0400
@@ -123,6 +123,7 @@ static const int NR_TYPES = ARRAY_SIZE(m
 static struct input_handler kbd_handler;
 static DEFINE_SPINLOCK(kbd_event_lock);
 static DEFINE_SPINLOCK(led_lock);
+static DEFINE_SPINLOCK(func_buf_lock); /* guard 'func_buf'  and friends */
 static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)];	/* keyboard key bitmap */
 static unsigned char shift_down[NR_SHIFT];		/* shift state counters.. */
 static bool dead_key_next;
@@ -1990,11 +1991,12 @@ int vt_do_kdgkb_ioctl(int cmd, struct kb
 	char *p;
 	u_char *q;
 	u_char __user *up;
-	int sz;
+	int sz, fnw_sz;
 	int delta;
 	char *first_free, *fj, *fnw;
 	int i, j, k;
 	int ret;
+	unsigned long flags;
 
 	if (!capable(CAP_SYS_TTY_CONFIG))
 		perm = 0;
@@ -2037,7 +2039,14 @@ int vt_do_kdgkb_ioctl(int cmd, struct kb
 			goto reterr;
 		}
 
+		fnw = NULL;
+		fnw_sz = 0;
+		/* race aginst other writers */
+		again:
+		spin_lock_irqsave(&func_buf_lock, flags);
 		q = func_table[i];
+
+		/* fj pointer to next entry after 'q' */
 		first_free = funcbufptr + (funcbufsize - funcbufleft);
 		for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++)
 			;
@@ -2045,10 +2054,12 @@ int vt_do_kdgkb_ioctl(int cmd, struct kb
 			fj = func_table[j];
 		else
 			fj = first_free;
-
+		/* buffer usage increase by new entry */
 		delta = (q ? -strlen(q) : 1) + strlen(kbs->kb_string);
+
 		if (delta <= funcbufleft) { 	/* it fits in current buf */
 		    if (j < MAX_NR_FUNC) {
+			/* make enough space for new entry at 'fj' */
 			memmove(fj + delta, fj, first_free - fj);
 			for (k = j; k < MAX_NR_FUNC; k++)
 			    if (func_table[k])
@@ -2061,20 +2072,28 @@ int vt_do_kdgkb_ioctl(int cmd, struct kb
 		    sz = 256;
 		    while (sz < funcbufsize - funcbufleft + delta)
 		      sz <<= 1;
-		    fnw = kmalloc(sz, GFP_KERNEL);
-		    if(!fnw) {
-		      ret = -ENOMEM;
-		      goto reterr;
+		    if (fnw_sz != sz) {
+		      spin_unlock_irqrestore(&func_buf_lock, flags);
+		      kfree(fnw);
+		      fnw = kmalloc(sz, GFP_KERNEL);
+		      fnw_sz = sz;
+		      if (!fnw) {
+			ret = -ENOMEM;
+			goto reterr;
+		      }
+		      goto again;
 		    }
 
 		    if (!q)
 		      func_table[i] = fj;
+		    /* copy data before insertion point to new location */
 		    if (fj > funcbufptr)
 			memmove(fnw, funcbufptr, fj - funcbufptr);
 		    for (k = 0; k < j; k++)
 		      if (func_table[k])
 			func_table[k] = fnw + (func_table[k] - funcbufptr);
 
+		    /* copy data after insertion point to new location */
 		    if (first_free > fj) {
 			memmove(fnw + (fj - funcbufptr) + delta, fj, first_free - fj);
 			for (k = j; k < MAX_NR_FUNC; k++)
@@ -2087,7 +2106,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kb
 		    funcbufleft = funcbufleft - delta + sz - funcbufsize;
 		    funcbufsize = sz;
 		}
+		/* finally insert item itself */
 		strcpy(func_table[i], kbs->kb_string);
+		spin_unlock_irqrestore(&func_buf_lock, flags);
 		break;
 	}
 	ret = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/tty/vt/vt.c linux-libre-5.1.21-gnu/drivers/tty/vt/vt.c
--- linux-libre-5.1-gnu/drivers/tty/vt/vt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/tty/vt/vt.c	2019-07-28 02:28:39.000000000 -0400
@@ -1056,6 +1056,13 @@ static void visual_init(struct vc_data *
 	vc->vc_screenbuf_size = vc->vc_rows * vc->vc_size_row;
 }
 
+
+static void visual_deinit(struct vc_data *vc)
+{
+	vc->vc_sw->con_deinit(vc);
+	module_put(vc->vc_sw->owner);
+}
+
 int vc_allocate(unsigned int currcons)	/* return 0 on success */
 {
 	struct vt_notifier_param param;
@@ -1103,6 +1110,7 @@ int vc_allocate(unsigned int currcons)	/
 
 	return 0;
 err_free:
+	visual_deinit(vc);
 	kfree(vc);
 	vc_cons[currcons].d = NULL;
 	return -ENOMEM;
@@ -1331,9 +1339,8 @@ struct vc_data *vc_deallocate(unsigned i
 		param.vc = vc = vc_cons[currcons].d;
 		atomic_notifier_call_chain(&vt_notifier_list, VT_DEALLOCATE, &param);
 		vcs_remove_sysfs(currcons);
-		vc->vc_sw->con_deinit(vc);
+		visual_deinit(vc);
 		put_pid(vc->vt_pid);
-		module_put(vc->vc_sw->owner);
 		vc_uniscr_set(vc, NULL);
 		kfree(vc->vc_screenbuf);
 		vc_cons[currcons].d = NULL;
@@ -4179,8 +4186,6 @@ void do_blank_screen(int entering_gfx)
 		return;
 	}
 
-	if (blank_state != blank_normal_wait)
-		return;
 	blank_state = blank_off;
 
 	/* don't blank graphics */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/chipidea/udc.c linux-libre-5.1.21-gnu/drivers/usb/chipidea/udc.c
--- linux-libre-5.1-gnu/drivers/usb/chipidea/udc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/chipidea/udc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1622,6 +1622,25 @@ static int ci_udc_pullup(struct usb_gadg
 static int ci_udc_start(struct usb_gadget *gadget,
 			 struct usb_gadget_driver *driver);
 static int ci_udc_stop(struct usb_gadget *gadget);
+
+/* Match ISOC IN from the highest endpoint */
+static struct usb_ep *ci_udc_match_ep(struct usb_gadget *gadget,
+			      struct usb_endpoint_descriptor *desc,
+			      struct usb_ss_ep_comp_descriptor *comp_desc)
+{
+	struct ci_hdrc *ci = container_of(gadget, struct ci_hdrc, gadget);
+	struct usb_ep *ep;
+
+	if (usb_endpoint_xfer_isoc(desc) && usb_endpoint_dir_in(desc)) {
+		list_for_each_entry_reverse(ep, &ci->gadget.ep_list, ep_list) {
+			if (ep->caps.dir_in && !ep->claimed)
+				return ep;
+		}
+	}
+
+	return NULL;
+}
+
 /**
  * Device operations part of the API to the USB controller hardware,
  * which don't involve endpoints (or i/o)
@@ -1635,6 +1654,7 @@ static const struct usb_gadget_ops usb_g
 	.vbus_draw	= ci_udc_vbus_draw,
 	.udc_start	= ci_udc_start,
 	.udc_stop	= ci_udc_stop,
+	.match_ep 	= ci_udc_match_ep,
 };
 
 static int init_eps(struct ci_hdrc *ci)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/class/cdc-acm.c linux-libre-5.1.21-gnu/drivers/usb/class/cdc-acm.c
--- linux-libre-5.1-gnu/drivers/usb/class/cdc-acm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/class/cdc-acm.c	2019-07-28 02:28:39.000000000 -0400
@@ -470,12 +470,12 @@ static void acm_read_bulk_callback(struc
 	struct acm *acm = rb->instance;
 	unsigned long flags;
 	int status = urb->status;
+	bool stopped = false;
+	bool stalled = false;
 
 	dev_vdbg(&acm->data->dev, "got urb %d, len %d, status %d\n",
 		rb->index, urb->actual_length, status);
 
-	set_bit(rb->index, &acm->read_urbs_free);
-
 	if (!acm->dev) {
 		dev_dbg(&acm->data->dev, "%s - disconnected\n", __func__);
 		return;
@@ -488,15 +488,16 @@ static void acm_read_bulk_callback(struc
 		break;
 	case -EPIPE:
 		set_bit(EVENT_RX_STALL, &acm->flags);
-		schedule_work(&acm->work);
-		return;
+		stalled = true;
+		break;
 	case -ENOENT:
 	case -ECONNRESET:
 	case -ESHUTDOWN:
 		dev_dbg(&acm->data->dev,
 			"%s - urb shutting down with status: %d\n",
 			__func__, status);
-		return;
+		stopped = true;
+		break;
 	default:
 		dev_dbg(&acm->data->dev,
 			"%s - nonzero urb status received: %d\n",
@@ -505,10 +506,24 @@ static void acm_read_bulk_callback(struc
 	}
 
 	/*
-	 * Unthrottle may run on another CPU which needs to see events
-	 * in the same order. Submission has an implict barrier
+	 * Make sure URB processing is done before marking as free to avoid
+	 * racing with unthrottle() on another CPU. Matches the barriers
+	 * implied by the test_and_clear_bit() in acm_submit_read_urb().
 	 */
 	smp_mb__before_atomic();
+	set_bit(rb->index, &acm->read_urbs_free);
+	/*
+	 * Make sure URB is marked as free before checking the throttled flag
+	 * to avoid racing with unthrottle() on another CPU. Matches the
+	 * smp_mb() in unthrottle().
+	 */
+	smp_mb__after_atomic();
+
+	if (stopped || stalled) {
+		if (stalled)
+			schedule_work(&acm->work);
+		return;
+	}
 
 	/* throttle device if requested by tty */
 	spin_lock_irqsave(&acm->read_lock, flags);
@@ -842,6 +857,9 @@ static void acm_tty_unthrottle(struct tt
 	acm->throttle_req = 0;
 	spin_unlock_irq(&acm->read_lock);
 
+	/* Matches the smp_mb__after_atomic() in acm_read_bulk_callback(). */
+	smp_mb();
+
 	if (was_throttled)
 		acm_submit_read_urbs(acm, GFP_KERNEL);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/core/config.c linux-libre-5.1.21-gnu/drivers/usb/core/config.c
--- linux-libre-5.1-gnu/drivers/usb/core/config.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/core/config.c	2019-07-28 02:28:39.000000000 -0400
@@ -932,8 +932,8 @@ int usb_get_bos_descriptor(struct usb_de
 
 	/* Get BOS descriptor */
 	ret = usb_get_descriptor(dev, USB_DT_BOS, 0, bos, USB_DT_BOS_SIZE);
-	if (ret < USB_DT_BOS_SIZE) {
-		dev_err(ddev, "unable to get BOS descriptor\n");
+	if (ret < USB_DT_BOS_SIZE || bos->bLength < USB_DT_BOS_SIZE) {
+		dev_err(ddev, "unable to get BOS descriptor or descriptor too short\n");
 		if (ret >= 0)
 			ret = -ENOMSG;
 		kfree(bos);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/core/devio.c linux-libre-5.1.21-gnu/drivers/usb/core/devio.c
--- linux-libre-5.1-gnu/drivers/usb/core/devio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/core/devio.c	2019-07-28 02:28:39.000000000 -0400
@@ -63,7 +63,7 @@ struct usb_dev_state {
 	unsigned int discsignr;
 	struct pid *disc_pid;
 	const struct cred *cred;
-	void __user *disccontext;
+	sigval_t disccontext;
 	unsigned long ifclaimed;
 	u32 disabled_bulk_eps;
 	bool privileges_dropped;
@@ -90,6 +90,7 @@ struct async {
 	unsigned int ifnum;
 	void __user *userbuffer;
 	void __user *userurb;
+	sigval_t userurb_sigval;
 	struct urb *urb;
 	struct usb_memory *usbm;
 	unsigned int mem_usage;
@@ -582,22 +583,19 @@ static void async_completed(struct urb *
 {
 	struct async *as = urb->context;
 	struct usb_dev_state *ps = as->ps;
-	struct kernel_siginfo sinfo;
 	struct pid *pid = NULL;
 	const struct cred *cred = NULL;
 	unsigned long flags;
-	int signr;
+	sigval_t addr;
+	int signr, errno;
 
 	spin_lock_irqsave(&ps->lock, flags);
 	list_move_tail(&as->asynclist, &ps->async_completed);
 	as->status = urb->status;
 	signr = as->signr;
 	if (signr) {
-		clear_siginfo(&sinfo);
-		sinfo.si_signo = as->signr;
-		sinfo.si_errno = as->status;
-		sinfo.si_code = SI_ASYNCIO;
-		sinfo.si_addr = as->userurb;
+		errno = as->status;
+		addr = as->userurb_sigval;
 		pid = get_pid(as->pid);
 		cred = get_cred(as->cred);
 	}
@@ -615,7 +613,7 @@ static void async_completed(struct urb *
 	spin_unlock_irqrestore(&ps->lock, flags);
 
 	if (signr) {
-		kill_pid_info_as_cred(sinfo.si_signo, &sinfo, pid, cred);
+		kill_pid_usb_asyncio(signr, errno, addr, pid, cred);
 		put_pid(pid);
 		put_cred(cred);
 	}
@@ -1427,7 +1425,7 @@ find_memory_area(struct usb_dev_state *p
 
 static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb,
 			struct usbdevfs_iso_packet_desc __user *iso_frame_desc,
-			void __user *arg)
+			void __user *arg, sigval_t userurb_sigval)
 {
 	struct usbdevfs_iso_packet_desc *isopkt = NULL;
 	struct usb_host_endpoint *ep;
@@ -1727,6 +1725,7 @@ static int proc_do_submiturb(struct usb_
 	isopkt = NULL;
 	as->ps = ps;
 	as->userurb = arg;
+	as->userurb_sigval = userurb_sigval;
 	if (as->usbm) {
 		unsigned long uurb_start = (unsigned long)uurb->buffer;
 
@@ -1801,13 +1800,17 @@ static int proc_do_submiturb(struct usb_
 static int proc_submiturb(struct usb_dev_state *ps, void __user *arg)
 {
 	struct usbdevfs_urb uurb;
+	sigval_t userurb_sigval;
 
 	if (copy_from_user(&uurb, arg, sizeof(uurb)))
 		return -EFAULT;
 
+	memset(&userurb_sigval, 0, sizeof(userurb_sigval));
+	userurb_sigval.sival_ptr = arg;
+
 	return proc_do_submiturb(ps, &uurb,
 			(((struct usbdevfs_urb __user *)arg)->iso_frame_desc),
-			arg);
+			arg, userurb_sigval);
 }
 
 static int proc_unlinkurb(struct usb_dev_state *ps, void __user *arg)
@@ -1977,7 +1980,7 @@ static int proc_disconnectsignal_compat(
 	if (copy_from_user(&ds, arg, sizeof(ds)))
 		return -EFAULT;
 	ps->discsignr = ds.signr;
-	ps->disccontext = compat_ptr(ds.context);
+	ps->disccontext.sival_int = ds.context;
 	return 0;
 }
 
@@ -2005,13 +2008,17 @@ static int get_urb32(struct usbdevfs_urb
 static int proc_submiturb_compat(struct usb_dev_state *ps, void __user *arg)
 {
 	struct usbdevfs_urb uurb;
+	sigval_t userurb_sigval;
 
 	if (get_urb32(&uurb, (struct usbdevfs_urb32 __user *)arg))
 		return -EFAULT;
 
+	memset(&userurb_sigval, 0, sizeof(userurb_sigval));
+	userurb_sigval.sival_int = ptr_to_compat(arg);
+
 	return proc_do_submiturb(ps, &uurb,
 			((struct usbdevfs_urb32 __user *)arg)->iso_frame_desc,
-			arg);
+			arg, userurb_sigval);
 }
 
 static int processcompl_compat(struct async *as, void __user * __user *arg)
@@ -2092,7 +2099,7 @@ static int proc_disconnectsignal(struct
 	if (copy_from_user(&ds, arg, sizeof(ds)))
 		return -EFAULT;
 	ps->discsignr = ds.signr;
-	ps->disccontext = ds.context;
+	ps->disccontext.sival_ptr = ds.context;
 	return 0;
 }
 
@@ -2614,22 +2621,15 @@ const struct file_operations usbdev_file
 static void usbdev_remove(struct usb_device *udev)
 {
 	struct usb_dev_state *ps;
-	struct kernel_siginfo sinfo;
 
 	while (!list_empty(&udev->filelist)) {
 		ps = list_entry(udev->filelist.next, struct usb_dev_state, list);
 		destroy_all_async(ps);
 		wake_up_all(&ps->wait);
 		list_del_init(&ps->list);
-		if (ps->discsignr) {
-			clear_siginfo(&sinfo);
-			sinfo.si_signo = ps->discsignr;
-			sinfo.si_errno = EPIPE;
-			sinfo.si_code = SI_ASYNCIO;
-			sinfo.si_addr = ps->disccontext;
-			kill_pid_info_as_cred(ps->discsignr, &sinfo,
-					ps->disc_pid, ps->cred);
-		}
+		if (ps->discsignr)
+			kill_pid_usb_asyncio(ps->discsignr, EPIPE, ps->disccontext,
+					     ps->disc_pid, ps->cred);
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/core/hcd.c linux-libre-5.1.21-gnu/drivers/usb/core/hcd.c
--- linux-libre-5.1-gnu/drivers/usb/core/hcd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/core/hcd.c	2019-07-28 02:28:39.000000000 -0400
@@ -3020,6 +3020,9 @@ usb_hcd_platform_shutdown(struct platfor
 {
 	struct usb_hcd *hcd = platform_get_drvdata(dev);
 
+	/* No need for pm_runtime_put(), we're shutting down */
+	pm_runtime_get_sync(&dev->dev);
+
 	if (hcd->driver->shutdown)
 		hcd->driver->shutdown(hcd);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/core/hub.c linux-libre-5.1.21-gnu/drivers/usb/core/hub.c
--- linux-libre-5.1-gnu/drivers/usb/core/hub.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/core/hub.c	2019-07-28 02:28:39.000000000 -0400
@@ -3616,6 +3616,7 @@ static int hub_handle_remote_wakeup(stru
 	struct usb_device *hdev;
 	struct usb_device *udev;
 	int connect_change = 0;
+	u16 link_state;
 	int ret;
 
 	hdev = hub->hdev;
@@ -3625,9 +3626,11 @@ static int hub_handle_remote_wakeup(stru
 			return 0;
 		usb_clear_port_feature(hdev, port, USB_PORT_FEAT_C_SUSPEND);
 	} else {
+		link_state = portstatus & USB_PORT_STAT_LINK_STATE;
 		if (!udev || udev->state != USB_STATE_SUSPENDED ||
-				 (portstatus & USB_PORT_STAT_LINK_STATE) !=
-				 USB_SS_PORT_LS_U0)
+				(link_state != USB_SS_PORT_LS_U0 &&
+				 link_state != USB_SS_PORT_LS_U1 &&
+				 link_state != USB_SS_PORT_LS_U2))
 			return 0;
 	}
 
@@ -5902,7 +5905,10 @@ int usb_reset_device(struct usb_device *
 					cintf->needs_binding = 1;
 			}
 		}
-		usb_unbind_and_rebind_marked_interfaces(udev);
+
+		/* If the reset failed, hub_wq will unbind drivers later */
+		if (ret == 0)
+			usb_unbind_and_rebind_marked_interfaces(udev);
 	}
 
 	usb_autosuspend_device(udev);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/core/quirks.c linux-libre-5.1.21-gnu/drivers/usb/core/quirks.c
--- linux-libre-5.1-gnu/drivers/usb/core/quirks.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/core/quirks.c	2019-07-28 02:28:39.000000000 -0400
@@ -209,9 +209,15 @@ static const struct usb_device_id usb_qu
 	/* Microsoft LifeCam-VX700 v2.0 */
 	{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Microsoft Surface Dock Ethernet (RTL8153 GigE) */
+	{ USB_DEVICE(0x045e, 0x07c6), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Cherry Stream G230 2.0 (G85-231) and 3.0 (G85-232) */
 	{ USB_DEVICE(0x046a, 0x0023), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Logitech HD Webcam C270 */
+	{ USB_DEVICE(0x046d, 0x0825), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	/* Logitech HD Pro Webcams C920, C920-C, C925e and C930e */
 	{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
 	{ USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc2/core.c linux-libre-5.1.21-gnu/drivers/usb/dwc2/core.c
--- linux-libre-5.1-gnu/drivers/usb/dwc2/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc2/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -531,7 +531,7 @@ int dwc2_core_reset(struct dwc2_hsotg *h
 	}
 
 	/* Wait for AHB master IDLE state */
-	if (dwc2_hsotg_wait_bit_set(hsotg, GRSTCTL, GRSTCTL_AHBIDLE, 50)) {
+	if (dwc2_hsotg_wait_bit_set(hsotg, GRSTCTL, GRSTCTL_AHBIDLE, 10000)) {
 		dev_warn(hsotg->dev, "%s: HANG! AHB Idle timeout GRSTCTL GRSTCTL_AHBIDLE\n",
 			 __func__);
 		return -EBUSY;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc2/gadget.c linux-libre-5.1.21-gnu/drivers/usb/dwc2/gadget.c
--- linux-libre-5.1-gnu/drivers/usb/dwc2/gadget.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc2/gadget.c	2019-07-28 02:28:39.000000000 -0400
@@ -714,13 +714,11 @@ static unsigned int dwc2_gadget_get_chai
 	unsigned int maxsize;
 
 	if (is_isoc)
-		maxsize = hs_ep->dir_in ? DEV_DMA_ISOC_TX_NBYTES_LIMIT :
-					   DEV_DMA_ISOC_RX_NBYTES_LIMIT;
+		maxsize = (hs_ep->dir_in ? DEV_DMA_ISOC_TX_NBYTES_LIMIT :
+					   DEV_DMA_ISOC_RX_NBYTES_LIMIT) *
+					   MAX_DMA_DESC_NUM_HS_ISOC;
 	else
-		maxsize = DEV_DMA_NBYTES_LIMIT;
-
-	/* Above size of one descriptor was chosen, multiple it */
-	maxsize *= MAX_DMA_DESC_NUM_GENERIC;
+		maxsize = DEV_DMA_NBYTES_LIMIT * MAX_DMA_DESC_NUM_GENERIC;
 
 	return maxsize;
 }
@@ -835,19 +833,22 @@ static void dwc2_gadget_fill_nonisoc_xfe
  * with corresponding information based on transfer data.
  */
 static void dwc2_gadget_config_nonisoc_xfer_ddma(struct dwc2_hsotg_ep *hs_ep,
-						 struct usb_request *ureq,
-						 unsigned int offset,
+						 dma_addr_t dma_buff,
 						 unsigned int len)
 {
+	struct usb_request *ureq = NULL;
 	struct dwc2_dma_desc *desc = hs_ep->desc_list;
 	struct scatterlist *sg;
 	int i;
 	u8 desc_count = 0;
 
+	if (hs_ep->req)
+		ureq = &hs_ep->req->req;
+
 	/* non-DMA sg buffer */
-	if (!ureq->num_sgs) {
+	if (!ureq || !ureq->num_sgs) {
 		dwc2_gadget_fill_nonisoc_xfer_ddma_one(hs_ep, &desc,
-			ureq->dma + offset, len, true);
+			dma_buff, len, true);
 		return;
 	}
 
@@ -932,7 +933,7 @@ static int dwc2_gadget_fill_isoc_desc(st
 
 	/* Update index of last configured entry in the chain */
 	hs_ep->next_desc++;
-	if (hs_ep->next_desc >= MAX_DMA_DESC_NUM_GENERIC)
+	if (hs_ep->next_desc >= MAX_DMA_DESC_NUM_HS_ISOC)
 		hs_ep->next_desc = 0;
 
 	return 0;
@@ -964,7 +965,7 @@ static void dwc2_gadget_start_isoc_ddma(
 	}
 
 	/* Initialize descriptor chain by Host Busy status */
-	for (i = 0; i < MAX_DMA_DESC_NUM_GENERIC; i++) {
+	for (i = 0; i < MAX_DMA_DESC_NUM_HS_ISOC; i++) {
 		desc = &hs_ep->desc_list[i];
 		desc->status = 0;
 		desc->status |= (DEV_DMA_BUFF_STS_HBUSY
@@ -1135,7 +1136,7 @@ static void dwc2_hsotg_start_req(struct
 			offset = ureq->actual;
 
 		/* Fill DDMA chain entries */
-		dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, ureq, offset,
+		dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, ureq->dma + offset,
 						     length);
 
 		/* write descriptor chain address to control register */
@@ -2028,12 +2029,13 @@ static void dwc2_hsotg_program_zlp(struc
 		dev_dbg(hsotg->dev, "Receiving zero-length packet on ep%d\n",
 			index);
 	if (using_desc_dma(hsotg)) {
+		/* Not specific buffer needed for ep0 ZLP */
+		dma_addr_t dma = hs_ep->desc_list_dma;
+
 		if (!index)
 			dwc2_gadget_set_ep0_desc_chain(hsotg, hs_ep);
 
-		/* Not specific buffer needed for ep0 ZLP */
-		dwc2_gadget_fill_nonisoc_xfer_ddma_one(hs_ep, &hs_ep->desc_list,
-			hs_ep->desc_list_dma, 0, true);
+		dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, dma, 0);
 	} else {
 		dwc2_writel(hsotg, DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |
 			    DXEPTSIZ_XFERSIZE(0),
@@ -2162,7 +2164,7 @@ static void dwc2_gadget_complete_isoc_re
 		dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
 
 		hs_ep->compl_desc++;
-		if (hs_ep->compl_desc > (MAX_DMA_DESC_NUM_GENERIC - 1))
+		if (hs_ep->compl_desc > (MAX_DMA_DESC_NUM_HS_ISOC - 1))
 			hs_ep->compl_desc = 0;
 		desc_sts = hs_ep->desc_list[hs_ep->compl_desc].status;
 	}
@@ -3899,6 +3901,7 @@ static int dwc2_hsotg_ep_enable(struct u
 	unsigned int i, val, size;
 	int ret = 0;
 	unsigned char ep_type;
+	int desc_num;
 
 	dev_dbg(hsotg->dev,
 		"%s: ep %s: a 0x%02x, attr 0x%02x, mps 0x%04x, intr %d\n",
@@ -3945,11 +3948,15 @@ static int dwc2_hsotg_ep_enable(struct u
 	dev_dbg(hsotg->dev, "%s: read DxEPCTL=0x%08x from 0x%08x\n",
 		__func__, epctrl, epctrl_reg);
 
+	if (using_desc_dma(hsotg) && ep_type == USB_ENDPOINT_XFER_ISOC)
+		desc_num = MAX_DMA_DESC_NUM_HS_ISOC;
+	else
+		desc_num = MAX_DMA_DESC_NUM_GENERIC;
+
 	/* Allocate DMA descriptor chain for non-ctrl endpoints */
 	if (using_desc_dma(hsotg) && !hs_ep->desc_list) {
 		hs_ep->desc_list = dmam_alloc_coherent(hsotg->dev,
-			MAX_DMA_DESC_NUM_GENERIC *
-			sizeof(struct dwc2_dma_desc),
+			desc_num * sizeof(struct dwc2_dma_desc),
 			&hs_ep->desc_list_dma, GFP_ATOMIC);
 		if (!hs_ep->desc_list) {
 			ret = -ENOMEM;
@@ -4092,7 +4099,7 @@ error1:
 
 error2:
 	if (ret && using_desc_dma(hsotg) && hs_ep->desc_list) {
-		dmam_free_coherent(hsotg->dev, MAX_DMA_DESC_NUM_GENERIC *
+		dmam_free_coherent(hsotg->dev, desc_num *
 			sizeof(struct dwc2_dma_desc),
 			hs_ep->desc_list, hs_ep->desc_list_dma);
 		hs_ep->desc_list = NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc2/hcd.c linux-libre-5.1.21-gnu/drivers/usb/dwc2/hcd.c
--- linux-libre-5.1-gnu/drivers/usb/dwc2/hcd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc2/hcd.c	2019-07-28 02:28:39.000000000 -0400
@@ -2664,8 +2664,10 @@ static void dwc2_free_dma_aligned_buffer
 		return;
 
 	/* Restore urb->transfer_buffer from the end of the allocated area */
-	memcpy(&stored_xfer_buffer, urb->transfer_buffer +
-	       urb->transfer_buffer_length, sizeof(urb->transfer_buffer));
+	memcpy(&stored_xfer_buffer,
+	       PTR_ALIGN(urb->transfer_buffer + urb->transfer_buffer_length,
+			 dma_get_cache_alignment()),
+	       sizeof(urb->transfer_buffer));
 
 	if (usb_urb_dir_in(urb)) {
 		if (usb_pipeisoc(urb->pipe))
@@ -2697,6 +2699,7 @@ static int dwc2_alloc_dma_aligned_buffer
 	 * DMA
 	 */
 	kmalloc_size = urb->transfer_buffer_length +
+		(dma_get_cache_alignment() - 1) +
 		sizeof(urb->transfer_buffer);
 
 	kmalloc_ptr = kmalloc(kmalloc_size, mem_flags);
@@ -2707,7 +2710,8 @@ static int dwc2_alloc_dma_aligned_buffer
 	 * Position value of original urb->transfer_buffer pointer to the end
 	 * of allocation for later referencing
 	 */
-	memcpy(kmalloc_ptr + urb->transfer_buffer_length,
+	memcpy(PTR_ALIGN(kmalloc_ptr + urb->transfer_buffer_length,
+			 dma_get_cache_alignment()),
 	       &urb->transfer_buffer, sizeof(urb->transfer_buffer));
 
 	if (usb_urb_dir_out(urb))
@@ -2792,7 +2796,7 @@ static int dwc2_assign_and_init_hc(struc
 	chan->dev_addr = dwc2_hcd_get_dev_addr(&urb->pipe_info);
 	chan->ep_num = dwc2_hcd_get_ep_num(&urb->pipe_info);
 	chan->speed = qh->dev_speed;
-	chan->max_packet = dwc2_max_packet(qh->maxp);
+	chan->max_packet = qh->maxp;
 
 	chan->xfer_started = 0;
 	chan->halt_status = DWC2_HC_XFER_NO_HALT_STATUS;
@@ -2870,7 +2874,7 @@ static int dwc2_assign_and_init_hc(struc
 		 * This value may be modified when the transfer is started
 		 * to reflect the actual transfer length
 		 */
-		chan->multi_count = dwc2_hb_mult(qh->maxp);
+		chan->multi_count = qh->maxp_mult;
 
 	if (hsotg->params.dma_desc_enable) {
 		chan->desc_list_addr = qh->desc_list_dma;
@@ -3990,19 +3994,21 @@ static struct dwc2_hcd_urb *dwc2_hcd_urb
 
 static void dwc2_hcd_urb_set_pipeinfo(struct dwc2_hsotg *hsotg,
 				      struct dwc2_hcd_urb *urb, u8 dev_addr,
-				      u8 ep_num, u8 ep_type, u8 ep_dir, u16 mps)
+				      u8 ep_num, u8 ep_type, u8 ep_dir,
+				      u16 maxp, u16 maxp_mult)
 {
 	if (dbg_perio() ||
 	    ep_type == USB_ENDPOINT_XFER_BULK ||
 	    ep_type == USB_ENDPOINT_XFER_CONTROL)
 		dev_vdbg(hsotg->dev,
-			 "addr=%d, ep_num=%d, ep_dir=%1x, ep_type=%1x, mps=%d\n",
-			 dev_addr, ep_num, ep_dir, ep_type, mps);
+			 "addr=%d, ep_num=%d, ep_dir=%1x, ep_type=%1x, maxp=%d (%d mult)\n",
+			 dev_addr, ep_num, ep_dir, ep_type, maxp, maxp_mult);
 	urb->pipe_info.dev_addr = dev_addr;
 	urb->pipe_info.ep_num = ep_num;
 	urb->pipe_info.pipe_type = ep_type;
 	urb->pipe_info.pipe_dir = ep_dir;
-	urb->pipe_info.mps = mps;
+	urb->pipe_info.maxp = maxp;
+	urb->pipe_info.maxp_mult = maxp_mult;
 }
 
 /*
@@ -4093,8 +4099,9 @@ void dwc2_hcd_dump_state(struct dwc2_hso
 					dwc2_hcd_is_pipe_in(&urb->pipe_info) ?
 					"IN" : "OUT");
 				dev_dbg(hsotg->dev,
-					"      Max packet size: %d\n",
-					dwc2_hcd_get_mps(&urb->pipe_info));
+					"      Max packet size: %d (%d mult)\n",
+					dwc2_hcd_get_maxp(&urb->pipe_info),
+					dwc2_hcd_get_maxp_mult(&urb->pipe_info));
 				dev_dbg(hsotg->dev,
 					"      transfer_buffer: %p\n",
 					urb->buf);
@@ -4661,8 +4668,10 @@ static void dwc2_dump_urb_info(struct us
 	}
 
 	dev_vdbg(hsotg->dev, "  Speed: %s\n", speed);
-	dev_vdbg(hsotg->dev, "  Max packet size: %d\n",
-		 usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)));
+	dev_vdbg(hsotg->dev, "  Max packet size: %d (%d mult)\n",
+		 usb_endpoint_maxp(&urb->ep->desc),
+		 usb_endpoint_maxp_mult(&urb->ep->desc));
+
 	dev_vdbg(hsotg->dev, "  Data buffer length: %d\n",
 		 urb->transfer_buffer_length);
 	dev_vdbg(hsotg->dev, "  Transfer buffer: %p, Transfer DMA: %08lx\n",
@@ -4745,8 +4754,8 @@ static int _dwc2_hcd_urb_enqueue(struct
 	dwc2_hcd_urb_set_pipeinfo(hsotg, dwc2_urb, usb_pipedevice(urb->pipe),
 				  usb_pipeendpoint(urb->pipe), ep_type,
 				  usb_pipein(urb->pipe),
-				  usb_maxpacket(urb->dev, urb->pipe,
-						!(usb_pipein(urb->pipe))));
+				  usb_endpoint_maxp(&ep->desc),
+				  usb_endpoint_maxp_mult(&ep->desc));
 
 	buf = urb->transfer_buffer;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc2/hcd.h linux-libre-5.1.21-gnu/drivers/usb/dwc2/hcd.h
--- linux-libre-5.1-gnu/drivers/usb/dwc2/hcd.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc2/hcd.h	2019-07-28 02:28:39.000000000 -0400
@@ -171,7 +171,8 @@ struct dwc2_hcd_pipe_info {
 	u8 ep_num;
 	u8 pipe_type;
 	u8 pipe_dir;
-	u16 mps;
+	u16 maxp;
+	u16 maxp_mult;
 };
 
 struct dwc2_hcd_iso_packet_desc {
@@ -264,6 +265,7 @@ struct dwc2_hs_transfer_time {
  *                       - USB_ENDPOINT_XFER_ISOC
  * @ep_is_in:           Endpoint direction
  * @maxp:               Value from wMaxPacketSize field of Endpoint Descriptor
+ * @maxp_mult:          Multiplier for maxp
  * @dev_speed:          Device speed. One of the following values:
  *                       - USB_SPEED_LOW
  *                       - USB_SPEED_FULL
@@ -340,6 +342,7 @@ struct dwc2_qh {
 	u8 ep_type;
 	u8 ep_is_in;
 	u16 maxp;
+	u16 maxp_mult;
 	u8 dev_speed;
 	u8 data_toggle;
 	u8 ping_state;
@@ -503,9 +506,14 @@ static inline u8 dwc2_hcd_get_pipe_type(
 	return pipe->pipe_type;
 }
 
-static inline u16 dwc2_hcd_get_mps(struct dwc2_hcd_pipe_info *pipe)
+static inline u16 dwc2_hcd_get_maxp(struct dwc2_hcd_pipe_info *pipe)
 {
-	return pipe->mps;
+	return pipe->maxp;
+}
+
+static inline u16 dwc2_hcd_get_maxp_mult(struct dwc2_hcd_pipe_info *pipe)
+{
+	return pipe->maxp_mult;
 }
 
 static inline u8 dwc2_hcd_get_dev_addr(struct dwc2_hcd_pipe_info *pipe)
@@ -620,12 +628,6 @@ static inline bool dbg_urb(struct urb *u
 static inline bool dbg_perio(void) { return false; }
 #endif
 
-/* High bandwidth multiplier as encoded in highspeed endpoint descriptors */
-#define dwc2_hb_mult(wmaxpacketsize) (1 + (((wmaxpacketsize) >> 11) & 0x03))
-
-/* Packet size for any kind of endpoint descriptor */
-#define dwc2_max_packet(wmaxpacketsize) ((wmaxpacketsize) & 0x07ff)
-
 /*
  * Returns true if frame1 index is greater than frame2 index. The comparison
  * is done modulo FRLISTEN_64_SIZE. This accounts for the rollover of the
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc2/hcd_intr.c linux-libre-5.1.21-gnu/drivers/usb/dwc2/hcd_intr.c
--- linux-libre-5.1-gnu/drivers/usb/dwc2/hcd_intr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc2/hcd_intr.c	2019-07-28 02:28:39.000000000 -0400
@@ -1617,8 +1617,9 @@ static void dwc2_hc_ahberr_intr(struct d
 
 	dev_err(hsotg->dev, "  Speed: %s\n", speed);
 
-	dev_err(hsotg->dev, "  Max packet size: %d\n",
-		dwc2_hcd_get_mps(&urb->pipe_info));
+	dev_err(hsotg->dev, "  Max packet size: %d (mult %d)\n",
+		dwc2_hcd_get_maxp(&urb->pipe_info),
+		dwc2_hcd_get_maxp_mult(&urb->pipe_info));
 	dev_err(hsotg->dev, "  Data buffer length: %d\n", urb->length);
 	dev_err(hsotg->dev, "  Transfer buffer: %p, Transfer DMA: %08lx\n",
 		urb->buf, (unsigned long)urb->dma);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc2/hcd_queue.c linux-libre-5.1.21-gnu/drivers/usb/dwc2/hcd_queue.c
--- linux-libre-5.1-gnu/drivers/usb/dwc2/hcd_queue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc2/hcd_queue.c	2019-07-28 02:28:39.000000000 -0400
@@ -708,7 +708,7 @@ static void dwc2_hs_pmap_unschedule(stru
 static int dwc2_uframe_schedule_split(struct dwc2_hsotg *hsotg,
 				      struct dwc2_qh *qh)
 {
-	int bytecount = dwc2_hb_mult(qh->maxp) * dwc2_max_packet(qh->maxp);
+	int bytecount = qh->maxp_mult * qh->maxp;
 	int ls_search_slice;
 	int err = 0;
 	int host_interval_in_sched;
@@ -1332,7 +1332,7 @@ static int dwc2_check_max_xfer_size(stru
 	u32 max_channel_xfer_size;
 	int status = 0;
 
-	max_xfer_size = dwc2_max_packet(qh->maxp) * dwc2_hb_mult(qh->maxp);
+	max_xfer_size = qh->maxp * qh->maxp_mult;
 	max_channel_xfer_size = hsotg->params.max_transfer_size;
 
 	if (max_xfer_size > max_channel_xfer_size) {
@@ -1517,8 +1517,9 @@ static void dwc2_qh_init(struct dwc2_hso
 	u32 prtspd = (hprt & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT;
 	bool do_split = (prtspd == HPRT0_SPD_HIGH_SPEED &&
 			 dev_speed != USB_SPEED_HIGH);
-	int maxp = dwc2_hcd_get_mps(&urb->pipe_info);
-	int bytecount = dwc2_hb_mult(maxp) * dwc2_max_packet(maxp);
+	int maxp = dwc2_hcd_get_maxp(&urb->pipe_info);
+	int maxp_mult = dwc2_hcd_get_maxp_mult(&urb->pipe_info);
+	int bytecount = maxp_mult * maxp;
 	char *speed, *type;
 
 	/* Initialize QH */
@@ -1531,6 +1532,7 @@ static void dwc2_qh_init(struct dwc2_hso
 
 	qh->data_toggle = DWC2_HC_PID_DATA0;
 	qh->maxp = maxp;
+	qh->maxp_mult = maxp_mult;
 	INIT_LIST_HEAD(&qh->qtd_list);
 	INIT_LIST_HEAD(&qh->qh_list_entry);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc3/core.c linux-libre-5.1.21-gnu/drivers/usb/dwc3/core.c
--- linux-libre-5.1-gnu/drivers/usb/dwc3/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc3/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -1218,7 +1218,7 @@ static void dwc3_get_properties(struct d
 	u8			tx_max_burst_prd;
 
 	/* default to highest possible threshold */
-	lpm_nyet_threshold = 0xff;
+	lpm_nyet_threshold = 0xf;
 
 	/* default to -3.5dB de-emphasis */
 	tx_de_emphasis = 1;
@@ -1600,6 +1600,7 @@ static int dwc3_suspend_common(struct dw
 		spin_lock_irqsave(&dwc->lock, flags);
 		dwc3_gadget_suspend(dwc);
 		spin_unlock_irqrestore(&dwc->lock, flags);
+		synchronize_irq(dwc->irq_gadget);
 		dwc3_core_exit(dwc);
 		break;
 	case DWC3_GCTL_PRTCAP_HOST:
@@ -1632,6 +1633,7 @@ static int dwc3_suspend_common(struct dw
 			spin_lock_irqsave(&dwc->lock, flags);
 			dwc3_gadget_suspend(dwc);
 			spin_unlock_irqrestore(&dwc->lock, flags);
+			synchronize_irq(dwc->irq_gadget);
 		}
 
 		dwc3_otg_exit(dwc);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc3/gadget.c linux-libre-5.1.21-gnu/drivers/usb/dwc3/gadget.c
--- linux-libre-5.1-gnu/drivers/usb/dwc3/gadget.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc3/gadget.c	2019-07-28 02:28:39.000000000 -0400
@@ -3384,8 +3384,6 @@ int dwc3_gadget_suspend(struct dwc3 *dwc
 	dwc3_disconnect_gadget(dwc);
 	__dwc3_gadget_stop(dwc);
 
-	synchronize_irq(dwc->irq_gadget);
-
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/dwc3/Kconfig linux-libre-5.1.21-gnu/drivers/usb/dwc3/Kconfig
--- linux-libre-5.1-gnu/drivers/usb/dwc3/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/dwc3/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -54,7 +54,8 @@ comment "Platform Glue Driver Support"
 
 config USB_DWC3_OMAP
 	tristate "Texas Instruments OMAP5 and similar Platforms"
-	depends on EXTCON && (ARCH_OMAP2PLUS || COMPILE_TEST)
+	depends on ARCH_OMAP2PLUS || COMPILE_TEST
+	depends on EXTCON || !EXTCON
 	depends on OF
 	default USB_DWC3
 	help
@@ -115,7 +116,8 @@ config USB_DWC3_ST
 
 config USB_DWC3_QCOM
 	tristate "Qualcomm Platform"
-	depends on EXTCON && (ARCH_QCOM || COMPILE_TEST)
+	depends on ARCH_QCOM || COMPILE_TEST
+	depends on EXTCON || !EXTCON
 	depends on OF
 	default USB_DWC3
 	help
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/gadget/function/f_fs.c linux-libre-5.1.21-gnu/drivers/usb/gadget/function/f_fs.c
--- linux-libre-5.1-gnu/drivers/usb/gadget/function/f_fs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/gadget/function/f_fs.c	2019-07-28 02:28:39.000000000 -0400
@@ -997,7 +997,6 @@ static ssize_t ffs_epfile_io(struct file
 		 * earlier
 		 */
 		gadget = epfile->ffs->gadget;
-		io_data->use_sg = gadget->sg_supported && data_len > PAGE_SIZE;
 
 		spin_lock_irq(&epfile->ffs->eps_lock);
 		/* In the meantime, endpoint got disabled or changed. */
@@ -1012,6 +1011,8 @@ static ssize_t ffs_epfile_io(struct file
 		 */
 		if (io_data->read)
 			data_len = usb_ep_align_maybe(gadget, ep->ep, data_len);
+
+		io_data->use_sg = gadget->sg_supported && data_len > PAGE_SIZE;
 		spin_unlock_irq(&epfile->ffs->eps_lock);
 
 		data = ffs_alloc_buffer(io_data, data_len);
@@ -1133,7 +1134,8 @@ error_lock:
 error_mutex:
 	mutex_unlock(&epfile->mutex);
 error:
-	ffs_free_buffer(io_data);
+	if (ret != -EIOCBQUEUED) /* don't free if there is iocb queued */
+		ffs_free_buffer(io_data);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/gadget/function/u_ether.c linux-libre-5.1.21-gnu/drivers/usb/gadget/function/u_ether.c
--- linux-libre-5.1-gnu/drivers/usb/gadget/function/u_ether.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/gadget/function/u_ether.c	2019-07-28 02:28:39.000000000 -0400
@@ -186,11 +186,12 @@ rx_submit(struct eth_dev *dev, struct us
 		out = dev->port_usb->out_ep;
 	else
 		out = NULL;
-	spin_unlock_irqrestore(&dev->lock, flags);
 
 	if (!out)
+	{
+		spin_unlock_irqrestore(&dev->lock, flags);
 		return -ENOTCONN;
-
+	}
 
 	/* Padding up to RX_EXTRA handles minor disagreements with host.
 	 * Normally we use the USB "terminate on short read" convention;
@@ -214,6 +215,7 @@ rx_submit(struct eth_dev *dev, struct us
 
 	if (dev->port_usb->is_fixed)
 		size = max_t(size_t, size, dev->port_usb->fixed_out_len);
+	spin_unlock_irqrestore(&dev->lock, flags);
 
 	skb = __netdev_alloc_skb(dev->net, size + NET_IP_ALIGN, gfp_flags);
 	if (skb == NULL) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/gadget/udc/fusb300_udc.c linux-libre-5.1.21-gnu/drivers/usb/gadget/udc/fusb300_udc.c
--- linux-libre-5.1-gnu/drivers/usb/gadget/udc/fusb300_udc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/gadget/udc/fusb300_udc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1342,12 +1342,15 @@ static const struct usb_gadget_ops fusb3
 static int fusb300_remove(struct platform_device *pdev)
 {
 	struct fusb300 *fusb300 = platform_get_drvdata(pdev);
+	int i;
 
 	usb_del_gadget_udc(&fusb300->gadget);
 	iounmap(fusb300->reg);
 	free_irq(platform_get_irq(pdev, 0), fusb300);
 
 	fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
+	for (i = 0; i < FUSB300_MAX_NUM_EP; i++)
+		kfree(fusb300->ep[i]);
 	kfree(fusb300);
 
 	return 0;
@@ -1491,6 +1494,8 @@ clean_up:
 		if (fusb300->ep0_req)
 			fusb300_free_request(&fusb300->ep[0]->ep,
 				fusb300->ep0_req);
+		for (i = 0; i < FUSB300_MAX_NUM_EP; i++)
+			kfree(fusb300->ep[i]);
 		kfree(fusb300);
 	}
 	if (reg)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/gadget/udc/lpc32xx_udc.c linux-libre-5.1.21-gnu/drivers/usb/gadget/udc/lpc32xx_udc.c
--- linux-libre-5.1-gnu/drivers/usb/gadget/udc/lpc32xx_udc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/gadget/udc/lpc32xx_udc.c	2019-07-28 02:28:39.000000000 -0400
@@ -922,8 +922,7 @@ static struct lpc32xx_usbd_dd_gad *udc_d
 	dma_addr_t			dma;
 	struct lpc32xx_usbd_dd_gad	*dd;
 
-	dd = (struct lpc32xx_usbd_dd_gad *) dma_pool_alloc(
-			udc->dd_cache, (GFP_KERNEL | GFP_DMA), &dma);
+	dd = dma_pool_alloc(udc->dd_cache, GFP_ATOMIC | GFP_DMA, &dma);
 	if (dd)
 		dd->this_dma = dma;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/host/ohci-da8xx.c linux-libre-5.1.21-gnu/drivers/usb/host/ohci-da8xx.c
--- linux-libre-5.1-gnu/drivers/usb/host/ohci-da8xx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/host/ohci-da8xx.c	2019-07-28 02:28:39.000000000 -0400
@@ -206,12 +206,23 @@ static int ohci_da8xx_regulator_event(st
 	return 0;
 }
 
-static irqreturn_t ohci_da8xx_oc_handler(int irq, void *data)
+static irqreturn_t ohci_da8xx_oc_thread(int irq, void *data)
 {
 	struct da8xx_ohci_hcd *da8xx_ohci = data;
+	struct device *dev = da8xx_ohci->hcd->self.controller;
+	int ret;
 
-	if (gpiod_get_value(da8xx_ohci->oc_gpio))
-		gpiod_set_value(da8xx_ohci->vbus_gpio, 0);
+	if (gpiod_get_value_cansleep(da8xx_ohci->oc_gpio)) {
+		if (da8xx_ohci->vbus_gpio) {
+			gpiod_set_value_cansleep(da8xx_ohci->vbus_gpio, 0);
+		} else if (da8xx_ohci->vbus_reg) {
+			ret = regulator_disable(da8xx_ohci->vbus_reg);
+			if (ret)
+				dev_err(dev,
+					"Failed to disable regulator: %d\n",
+					ret);
+		}
+	}
 
 	return IRQ_HANDLED;
 }
@@ -438,8 +449,9 @@ static int ohci_da8xx_probe(struct platf
 		if (oc_irq < 0)
 			goto err;
 
-		error = devm_request_irq(dev, oc_irq, ohci_da8xx_oc_handler,
-				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+		error = devm_request_threaded_irq(dev, oc_irq, NULL,
+				ohci_da8xx_oc_thread, IRQF_TRIGGER_RISING |
+				IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 				"OHCI over-current indicator", da8xx_ohci);
 		if (error)
 			goto err;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/host/xhci.c linux-libre-5.1.21-gnu/drivers/usb/host/xhci.c
--- linux-libre-5.1-gnu/drivers/usb/host/xhci.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/host/xhci.c	2019-07-28 02:28:39.000000000 -0400
@@ -9,6 +9,7 @@
  */
 
 #include <linux/pci.h>
+#include <linux/iopoll.h>
 #include <linux/irq.h>
 #include <linux/log2.h>
 #include <linux/module.h>
@@ -52,7 +53,6 @@ static bool td_on_ring(struct xhci_td *t
 	return false;
 }
 
-/* TODO: copied from ehci-hcd.c - can this be refactored? */
 /*
  * xhci_handshake - spin reading hc until handshake completes or fails
  * @ptr: address of hc register to be read
@@ -69,18 +69,16 @@ static bool td_on_ring(struct xhci_td *t
 int xhci_handshake(void __iomem *ptr, u32 mask, u32 done, int usec)
 {
 	u32	result;
+	int	ret;
 
-	do {
-		result = readl(ptr);
-		if (result == ~(u32)0)		/* card removed */
-			return -ENODEV;
-		result &= mask;
-		if (result == done)
-			return 0;
-		udelay(1);
-		usec--;
-	} while (usec > 0);
-	return -ETIMEDOUT;
+	ret = readl_poll_timeout_atomic(ptr, result,
+					(result & mask) == done ||
+					result == U32_MAX,
+					1, usec);
+	if (result == U32_MAX)		/* card removed */
+		return -ENODEV;
+
+	return ret;
 }
 
 /*
@@ -1444,6 +1442,10 @@ static int xhci_urb_enqueue(struct usb_h
 			xhci_dbg(xhci, "urb submitted during PCI suspend\n");
 		return -ESHUTDOWN;
 	}
+	if (xhci->devs[slot_id]->flags & VDEV_PORT_ERROR) {
+		xhci_dbg(xhci, "Can't queue urb, port error, link inactive\n");
+		return -ENODEV;
+	}
 
 	if (usb_endpoint_xfer_isoc(&urb->ep->desc))
 		num_tds = urb->number_of_packets;
@@ -3726,6 +3728,7 @@ static int xhci_discover_or_reset_device
 	}
 	/* If necessary, update the number of active TTs on this root port */
 	xhci_update_tt_active_eps(xhci, virt_dev, old_active_eps);
+	virt_dev->flags = 0;
 	ret = 0;
 
 command_cleanup:
@@ -4289,7 +4292,6 @@ static int xhci_set_usb2_hardware_lpm(st
 	pm_addr = ports[port_num]->addr + PORTPMSC;
 	pm_val = readl(pm_addr);
 	hlpm_addr = ports[port_num]->addr + PORTHLPMC;
-	field = le32_to_cpu(udev->bos->ext_cap->bmAttributes);
 
 	xhci_dbg(xhci, "%s port %d USB2 hardware LPM\n",
 			enable ? "enable" : "disable", port_num + 1);
@@ -4301,6 +4303,7 @@ static int xhci_set_usb2_hardware_lpm(st
 			 * default one which works with mixed HIRD and BESL
 			 * systems. See XHCI_DEFAULT_BESL definition in xhci.h
 			 */
+			field = le32_to_cpu(udev->bos->ext_cap->bmAttributes);
 			if ((field & USB_BESL_SUPPORT) &&
 			    (field & USB_BESL_BASELINE_VALID))
 				hird = USB_GET_BESL_BASELINE(field);
@@ -5031,16 +5034,26 @@ int xhci_gen_setup(struct usb_hcd *hcd,
 	} else {
 		/*
 		 * Some 3.1 hosts return sbrn 0x30, use xhci supported protocol
-		 * minor revision instead of sbrn
+		 * minor revision instead of sbrn. Minor revision is a two digit
+		 * BCD containing minor and sub-minor numbers, only show minor.
 		 */
-		minor_rev = xhci->usb3_rhub.min_rev;
-		if (minor_rev) {
+		minor_rev = xhci->usb3_rhub.min_rev / 0x10;
+
+		switch (minor_rev) {
+		case 2:
+			hcd->speed = HCD_USB32;
+			hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;
+			hcd->self.root_hub->rx_lanes = 2;
+			hcd->self.root_hub->tx_lanes = 2;
+			break;
+		case 1:
 			hcd->speed = HCD_USB31;
 			hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;
+			break;
 		}
-		xhci_info(xhci, "Host supports USB 3.%x %s SuperSpeed\n",
+		xhci_info(xhci, "Host supports USB 3.%x %sSuperSpeed\n",
 			  minor_rev,
-			  minor_rev ? "Enhanced" : "");
+			  minor_rev ? "Enhanced " : "");
 
 		xhci->usb3_rhub.hcd = hcd;
 		/* xHCI private pointer was set in xhci_pci_probe for the second
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/host/xhci-debugfs.c linux-libre-5.1.21-gnu/drivers/usb/host/xhci-debugfs.c
--- linux-libre-5.1-gnu/drivers/usb/host/xhci-debugfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/host/xhci-debugfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -440,6 +440,9 @@ void xhci_debugfs_create_endpoint(struct
 	struct xhci_ep_priv	*epriv;
 	struct xhci_slot_priv	*spriv = dev->debugfs_private;
 
+	if (!spriv)
+		return;
+
 	if (spriv->eps[ep_index])
 		return;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/host/xhci.h linux-libre-5.1.21-gnu/drivers/usb/host/xhci.h
--- linux-libre-5.1-gnu/drivers/usb/host/xhci.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/host/xhci.h	2019-07-28 02:28:39.000000000 -0400
@@ -1010,6 +1010,15 @@ struct xhci_virt_device {
 	u8				real_port;
 	struct xhci_interval_bw_table	*bw_table;
 	struct xhci_tt_bw_info		*tt_info;
+	/*
+	 * flags for state tracking based on events and issued commands.
+	 * Software can not rely on states from output contexts because of
+	 * latency between events and xHC updating output context values.
+	 * See xhci 1.1 section 4.8.3 for more details
+	 */
+	unsigned long			flags;
+#define VDEV_PORT_ERROR			BIT(0) /* Port error, link inactive */
+
 	/* The current max exit latency for the enabled USB3 link states. */
 	u16				current_mel;
 	/* Used for the debugfs interfaces. */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/host/xhci-ring.c linux-libre-5.1.21-gnu/drivers/usb/host/xhci-ring.c
--- linux-libre-5.1-gnu/drivers/usb/host/xhci-ring.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/host/xhci-ring.c	2019-07-28 02:28:39.000000000 -0400
@@ -656,6 +656,7 @@ static void xhci_unmap_td_bounce_buffer(
 	struct device *dev = xhci_to_hcd(xhci)->self.controller;
 	struct xhci_segment *seg = td->bounce_seg;
 	struct urb *urb = td->urb;
+	size_t len;
 
 	if (!ring || !seg || !urb)
 		return;
@@ -666,11 +667,14 @@ static void xhci_unmap_td_bounce_buffer(
 		return;
 	}
 
-	/* for in tranfers we need to copy the data from bounce to sg */
-	sg_pcopy_from_buffer(urb->sg, urb->num_mapped_sgs, seg->bounce_buf,
-			     seg->bounce_len, seg->bounce_offs);
 	dma_unmap_single(dev, seg->bounce_dma, ring->bounce_buf_len,
 			 DMA_FROM_DEVICE);
+	/* for in tranfers we need to copy the data from bounce to sg */
+	len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs, seg->bounce_buf,
+			     seg->bounce_len, seg->bounce_offs);
+	if (len != seg->bounce_len)
+		xhci_warn(xhci, "WARN Wrong bounce buffer read length: %zu != %d\n",
+				len, seg->bounce_len);
 	seg->bounce_len = 0;
 	seg->bounce_offs = 0;
 }
@@ -1604,8 +1608,13 @@ static void handle_port_status(struct xh
 		usb_hcd_resume_root_hub(hcd);
 	}
 
-	if (hcd->speed >= HCD_USB3 && (portsc & PORT_PLS_MASK) == XDEV_INACTIVE)
+	if (hcd->speed >= HCD_USB3 &&
+	    (portsc & PORT_PLS_MASK) == XDEV_INACTIVE) {
+		slot_id = xhci_find_slot_id_by_port(hcd, xhci, hcd_portnum + 1);
+		if (slot_id && xhci->devs[slot_id])
+			xhci->devs[slot_id]->flags |= VDEV_PORT_ERROR;
 		bus_state->port_remote_wakeup &= ~(1 << hcd_portnum);
+	}
 
 	if ((portsc & PORT_PLC) && (portsc & PORT_PLS_MASK) == XDEV_RESUME) {
 		xhci_dbg(xhci, "port resume event for port %d\n", port_id);
@@ -1793,6 +1802,14 @@ static void xhci_cleanup_halted_endpoint
 {
 	struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index];
 	struct xhci_command *command;
+
+	/*
+	 * Avoid resetting endpoint if link is inactive. Can cause host hang.
+	 * Device will be reset soon to recover the link so don't do anything
+	 */
+	if (xhci->devs[slot_id]->flags & VDEV_PORT_ERROR)
+		return;
+
 	command = xhci_alloc_command(xhci, false, GFP_ATOMIC);
 	if (!command)
 		return;
@@ -3123,6 +3140,7 @@ static int xhci_align_td(struct xhci_hcd
 	unsigned int unalign;
 	unsigned int max_pkt;
 	u32 new_buff_len;
+	size_t len;
 
 	max_pkt = usb_endpoint_maxp(&urb->ep->desc);
 	unalign = (enqd_len + *trb_buff_len) % max_pkt;
@@ -3153,8 +3171,12 @@ static int xhci_align_td(struct xhci_hcd
 
 	/* create a max max_pkt sized bounce buffer pointed to by last trb */
 	if (usb_urb_dir_out(urb)) {
-		sg_pcopy_to_buffer(urb->sg, urb->num_mapped_sgs,
+		len = sg_pcopy_to_buffer(urb->sg, urb->num_sgs,
 				   seg->bounce_buf, new_buff_len, enqd_len);
+		if (len != seg->bounce_len)
+			xhci_warn(xhci,
+				"WARN Wrong bounce buffer write length: %zu != %d\n",
+				len, seg->bounce_len);
 		seg->bounce_dma = dma_map_single(dev, seg->bounce_buf,
 						 max_pkt, DMA_TO_DEVICE);
 	} else {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/misc/rio500.c linux-libre-5.1.21-gnu/drivers/usb/misc/rio500.c
--- linux-libre-5.1-gnu/drivers/usb/misc/rio500.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/misc/rio500.c	2019-07-28 02:28:39.000000000 -0400
@@ -86,9 +86,22 @@ static int close_rio(struct inode *inode
 {
 	struct rio_usb_data *rio = &rio_instance;
 
-	rio->isopen = 0;
+	/* against disconnect() */
+	mutex_lock(&rio500_mutex);
+	mutex_lock(&(rio->lock));
 
-	dev_info(&rio->rio_dev->dev, "Rio closed.\n");
+	rio->isopen = 0;
+	if (!rio->present) {
+		/* cleanup has been delayed */
+		kfree(rio->ibuf);
+		kfree(rio->obuf);
+		rio->ibuf = NULL;
+		rio->obuf = NULL;
+	} else {
+		dev_info(&rio->rio_dev->dev, "Rio closed.\n");
+	}
+	mutex_unlock(&(rio->lock));
+	mutex_unlock(&rio500_mutex);
 	return 0;
 }
 
@@ -447,15 +460,23 @@ static int probe_rio(struct usb_interfac
 {
 	struct usb_device *dev = interface_to_usbdev(intf);
 	struct rio_usb_data *rio = &rio_instance;
-	int retval;
+	int retval = 0;
 
-	dev_info(&intf->dev, "USB Rio found at address %d\n", dev->devnum);
+	mutex_lock(&rio500_mutex);
+	if (rio->present) {
+		dev_info(&intf->dev, "Second USB Rio at address %d refused\n", dev->devnum);
+		retval = -EBUSY;
+		goto bail_out;
+	} else {
+		dev_info(&intf->dev, "USB Rio found at address %d\n", dev->devnum);
+	}
 
 	retval = usb_register_dev(intf, &usb_rio_class);
 	if (retval) {
 		dev_err(&dev->dev,
 			"Not able to get a minor for this device.\n");
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto bail_out;
 	}
 
 	rio->rio_dev = dev;
@@ -464,7 +485,8 @@ static int probe_rio(struct usb_interfac
 		dev_err(&dev->dev,
 			"probe_rio: Not enough memory for the output buffer\n");
 		usb_deregister_dev(intf, &usb_rio_class);
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto bail_out;
 	}
 	dev_dbg(&intf->dev, "obuf address:%p\n", rio->obuf);
 
@@ -473,7 +495,8 @@ static int probe_rio(struct usb_interfac
 			"probe_rio: Not enough memory for the input buffer\n");
 		usb_deregister_dev(intf, &usb_rio_class);
 		kfree(rio->obuf);
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto bail_out;
 	}
 	dev_dbg(&intf->dev, "ibuf address:%p\n", rio->ibuf);
 
@@ -481,8 +504,10 @@ static int probe_rio(struct usb_interfac
 
 	usb_set_intfdata (intf, rio);
 	rio->present = 1;
+bail_out:
+	mutex_unlock(&rio500_mutex);
 
-	return 0;
+	return retval;
 }
 
 static void disconnect_rio(struct usb_interface *intf)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/misc/sisusbvga/sisusb.c linux-libre-5.1.21-gnu/drivers/usb/misc/sisusbvga/sisusb.c
--- linux-libre-5.1-gnu/drivers/usb/misc/sisusbvga/sisusb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/misc/sisusbvga/sisusb.c	2019-07-28 02:28:39.000000000 -0400
@@ -3029,6 +3029,13 @@ static int sisusb_probe(struct usb_inter
 
 	mutex_init(&(sisusb->lock));
 
+	sisusb->sisusb_dev = dev;
+	sisusb->vrambase   = SISUSB_PCI_MEMBASE;
+	sisusb->mmiobase   = SISUSB_PCI_MMIOBASE;
+	sisusb->mmiosize   = SISUSB_PCI_MMIOSIZE;
+	sisusb->ioportbase = SISUSB_PCI_IOPORTBASE;
+	/* Everything else is zero */
+
 	/* Register device */
 	retval = usb_register_dev(intf, &usb_sisusb_class);
 	if (retval) {
@@ -3039,13 +3046,7 @@ static int sisusb_probe(struct usb_inter
 		goto error_1;
 	}
 
-	sisusb->sisusb_dev = dev;
-	sisusb->minor      = intf->minor;
-	sisusb->vrambase   = SISUSB_PCI_MEMBASE;
-	sisusb->mmiobase   = SISUSB_PCI_MMIOBASE;
-	sisusb->mmiosize   = SISUSB_PCI_MMIOSIZE;
-	sisusb->ioportbase = SISUSB_PCI_IOPORTBASE;
-	/* Everything else is zero */
+	sisusb->minor = intf->minor;
 
 	/* Allocate buffers */
 	sisusb->ibufsize = SISUSB_IBUF_SIZE;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/musb/Kconfig linux-libre-5.1.21-gnu/drivers/usb/musb/Kconfig
--- linux-libre-5.1-gnu/drivers/usb/musb/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/musb/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -67,7 +67,7 @@ config USB_MUSB_SUNXI
 	depends on NOP_USB_XCEIV
 	depends on PHY_SUN4I_USB
 	depends on EXTCON
-	depends on GENERIC_PHY
+	select GENERIC_PHY
 	select SUNXI_SRAM
 
 config USB_MUSB_DAVINCI
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/renesas_usbhs/fifo.c linux-libre-5.1.21-gnu/drivers/usb/renesas_usbhs/fifo.c
--- linux-libre-5.1-gnu/drivers/usb/renesas_usbhs/fifo.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/renesas_usbhs/fifo.c	2019-07-28 02:28:39.000000000 -0400
@@ -802,9 +802,8 @@ static int __usbhsf_dma_map_ctrl(struct
 }
 
 static void usbhsf_dma_complete(void *arg);
-static void xfer_work(struct work_struct *work)
+static void usbhsf_dma_xfer_preparing(struct usbhs_pkt *pkt)
 {
-	struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work);
 	struct usbhs_pipe *pipe = pkt->pipe;
 	struct usbhs_fifo *fifo;
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
@@ -812,12 +811,10 @@ static void xfer_work(struct work_struct
 	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;
+		return;
 
 	chan = usbhsf_dma_chan_get(fifo, pkt);
 	dir = usbhs_pipe_is_dir_in(pipe) ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV;
@@ -826,7 +823,7 @@ static void xfer_work(struct work_struct
 					pkt->trans, dir,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc)
-		goto xfer_work_end;
+		return;
 
 	desc->callback		= usbhsf_dma_complete;
 	desc->callback_param	= pipe;
@@ -834,7 +831,7 @@ 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");
-		goto xfer_work_end;
+		return;
 	}
 
 	dev_dbg(dev, "  %s %d (%d/ %d)\n",
@@ -845,8 +842,17 @@ static void xfer_work(struct work_struct
 	dma_async_issue_pending(chan);
 	usbhsf_dma_start(pipe, fifo);
 	usbhs_pipe_enable(pipe);
+}
 
-xfer_work_end:
+static void xfer_work(struct work_struct *work)
+{
+	struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work);
+	struct usbhs_pipe *pipe = pkt->pipe;
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
+	usbhsf_dma_xfer_preparing(pkt);
 	usbhs_unlock(priv, flags);
 }
 
@@ -899,8 +905,13 @@ static int usbhsf_dma_prepare_push(struc
 	pkt->trans = len;
 
 	usbhsf_tx_irq_ctrl(pipe, 0);
-	INIT_WORK(&pkt->work, xfer_work);
-	schedule_work(&pkt->work);
+	/* FIXME: Workaound for usb dmac that driver can be used in atomic */
+	if (usbhs_get_dparam(priv, has_usb_dmac)) {
+		usbhsf_dma_xfer_preparing(pkt);
+	} else {
+		INIT_WORK(&pkt->work, xfer_work);
+		schedule_work(&pkt->work);
+	}
 
 	return 0;
 
@@ -1006,8 +1017,7 @@ static int usbhsf_dma_prepare_pop_with_u
 
 	pkt->trans = pkt->length;
 
-	INIT_WORK(&pkt->work, xfer_work);
-	schedule_work(&pkt->work);
+	usbhsf_dma_xfer_preparing(pkt);
 
 	return 0;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/serial/f81232.c linux-libre-5.1.21-gnu/drivers/usb/serial/f81232.c
--- linux-libre-5.1-gnu/drivers/usb/serial/f81232.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/serial/f81232.c	2019-07-28 02:28:39.000000000 -0400
@@ -556,9 +556,12 @@ static int f81232_open(struct tty_struct
 
 static void f81232_close(struct usb_serial_port *port)
 {
+	struct f81232_private *port_priv = usb_get_serial_port_data(port);
+
 	f81232_port_disable(port);
 	usb_serial_generic_close(port);
 	usb_kill_urb(port->interrupt_in_urb);
+	flush_work(&port_priv->interrupt_work);
 }
 
 static void f81232_dtr_rts(struct usb_serial_port *port, int on)
@@ -632,6 +635,40 @@ static int f81232_port_remove(struct usb
 	return 0;
 }
 
+static int f81232_suspend(struct usb_serial *serial, pm_message_t message)
+{
+	struct usb_serial_port *port = serial->port[0];
+	struct f81232_private *port_priv = usb_get_serial_port_data(port);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i)
+		usb_kill_urb(port->read_urbs[i]);
+
+	usb_kill_urb(port->interrupt_in_urb);
+
+	if (port_priv)
+		flush_work(&port_priv->interrupt_work);
+
+	return 0;
+}
+
+static int f81232_resume(struct usb_serial *serial)
+{
+	struct usb_serial_port *port = serial->port[0];
+	int result;
+
+	if (tty_port_initialized(&port->port)) {
+		result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
+		if (result) {
+			dev_err(&port->dev, "submit interrupt urb failed: %d\n",
+					result);
+			return result;
+		}
+	}
+
+	return usb_serial_generic_resume(serial);
+}
+
 static struct usb_serial_driver f81232_device = {
 	.driver = {
 		.owner =	THIS_MODULE,
@@ -655,6 +692,8 @@ static struct usb_serial_driver f81232_d
 	.read_int_callback =	f81232_read_int_callback,
 	.port_probe =		f81232_port_probe,
 	.port_remove =		f81232_port_remove,
+	.suspend =		f81232_suspend,
+	.resume =		f81232_resume,
 };
 
 static struct usb_serial_driver * const serial_drivers[] = {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/serial/ftdi_sio.c linux-libre-5.1.21-gnu/drivers/usb/serial/ftdi_sio.c
--- linux-libre-5.1-gnu/drivers/usb/serial/ftdi_sio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/serial/ftdi_sio.c	2019-07-28 02:28:39.000000000 -0400
@@ -1029,6 +1029,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(AIRBUS_DS_VID, AIRBUS_DS_P8GR) },
 	/* EZPrototypes devices */
 	{ USB_DEVICE(EZPROTOTYPES_VID, HJELMSLUND_USB485_ISO_PID) },
+	{ USB_DEVICE_INTERFACE_NUMBER(UNJO_VID, UNJO_ISODEBUG_V1_PID, 1) },
 	{ }					/* Terminating entry */
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/serial/ftdi_sio_ids.h linux-libre-5.1.21-gnu/drivers/usb/serial/ftdi_sio_ids.h
--- linux-libre-5.1-gnu/drivers/usb/serial/ftdi_sio_ids.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/serial/ftdi_sio_ids.h	2019-07-28 02:28:39.000000000 -0400
@@ -1543,3 +1543,9 @@
 #define CHETCO_SEASMART_DISPLAY_PID	0xA5AD /* SeaSmart NMEA2000 Display */
 #define CHETCO_SEASMART_LITE_PID	0xA5AE /* SeaSmart Lite USB Adapter */
 #define CHETCO_SEASMART_ANALOG_PID	0xA5AF /* SeaSmart Analog Adapter */
+
+/*
+ * Unjo AB
+ */
+#define UNJO_VID			0x22B7
+#define UNJO_ISODEBUG_V1_PID		0x150D
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/serial/generic.c linux-libre-5.1.21-gnu/drivers/usb/serial/generic.c
--- linux-libre-5.1-gnu/drivers/usb/serial/generic.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/serial/generic.c	2019-07-28 02:28:39.000000000 -0400
@@ -376,6 +376,7 @@ void usb_serial_generic_read_bulk_callba
 	struct usb_serial_port *port = urb->context;
 	unsigned char *data = urb->transfer_buffer;
 	unsigned long flags;
+	bool stopped = false;
 	int status = urb->status;
 	int i;
 
@@ -383,33 +384,51 @@ void usb_serial_generic_read_bulk_callba
 		if (urb == port->read_urbs[i])
 			break;
 	}
-	set_bit(i, &port->read_urbs_free);
 
 	dev_dbg(&port->dev, "%s - urb %d, len %d\n", __func__, i,
 							urb->actual_length);
 	switch (status) {
 	case 0:
+		usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
+							data);
+		port->serial->type->process_read_urb(urb);
 		break;
 	case -ENOENT:
 	case -ECONNRESET:
 	case -ESHUTDOWN:
 		dev_dbg(&port->dev, "%s - urb stopped: %d\n",
 							__func__, status);
-		return;
+		stopped = true;
+		break;
 	case -EPIPE:
 		dev_err(&port->dev, "%s - urb stopped: %d\n",
 							__func__, status);
-		return;
+		stopped = true;
+		break;
 	default:
 		dev_dbg(&port->dev, "%s - nonzero urb status: %d\n",
 							__func__, status);
-		goto resubmit;
+		break;
 	}
 
-	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
-	port->serial->type->process_read_urb(urb);
+	/*
+	 * Make sure URB processing is done before marking as free to avoid
+	 * racing with unthrottle() on another CPU. Matches the barriers
+	 * implied by the test_and_clear_bit() in
+	 * usb_serial_generic_submit_read_urb().
+	 */
+	smp_mb__before_atomic();
+	set_bit(i, &port->read_urbs_free);
+	/*
+	 * Make sure URB is marked as free before checking the throttled flag
+	 * to avoid racing with unthrottle() on another CPU. Matches the
+	 * smp_mb() in unthrottle().
+	 */
+	smp_mb__after_atomic();
+
+	if (stopped)
+		return;
 
-resubmit:
 	/* Throttle the device if requested by tty */
 	spin_lock_irqsave(&port->lock, flags);
 	port->throttled = port->throttle_req;
@@ -484,6 +503,12 @@ void usb_serial_generic_unthrottle(struc
 	port->throttled = port->throttle_req = 0;
 	spin_unlock_irq(&port->lock);
 
+	/*
+	 * Matches the smp_mb__after_atomic() in
+	 * usb_serial_generic_read_bulk_callback().
+	 */
+	smp_mb();
+
 	if (was_throttled)
 		usb_serial_generic_submit_read_urbs(port, GFP_KERNEL);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/serial/option.c linux-libre-5.1.21-gnu/drivers/usb/serial/option.c
--- linux-libre-5.1-gnu/drivers/usb/serial/option.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/serial/option.c	2019-07-28 02:28:39.000000000 -0400
@@ -1171,6 +1171,10 @@ static const struct usb_device_id option
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1213, 0xff) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1214),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
+	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1260),
+	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
+	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1261),
+	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, 0x1900),				/* Telit LN940 (QMI) */
 	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1901, 0xff),	/* Telit LN940 (MBIM) */
@@ -1339,6 +1343,7 @@ static const struct usb_device_id option
 	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0601, 0xff) },	/* GosunCn ZTE WeLink ME3630 (RNDIS mode) */
 	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0602, 0xff) },	/* GosunCn ZTE WeLink ME3630 (MBIM mode) */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(4) },
@@ -1772,6 +1777,8 @@ static const struct usb_device_id option
 	{ USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
 	  .driver_info = RSVD(5) | RSVD(6) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9003, 0xff) },	/* Simcom SIM7500/SIM7600 MBIM mode */
+	{ USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9011, 0xff),	/* Simcom SIM7500/SIM7600 RNDIS mode */
+	  .driver_info = RSVD(7) },
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
 	  .driver_info = NCTRL(0) | NCTRL(1) | RSVD(4) },
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220_X500D),
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/serial/pl2303.c linux-libre-5.1.21-gnu/drivers/usb/serial/pl2303.c
--- linux-libre-5.1-gnu/drivers/usb/serial/pl2303.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/serial/pl2303.c	2019-07-28 02:28:39.000000000 -0400
@@ -106,6 +106,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) },
 	{ USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) },
 	{ USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) },
+	{ USB_DEVICE(AT_VENDOR_ID, AT_VTKIT3_PRODUCT_ID) },
 	{ }					/* Terminating entry */
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/serial/pl2303.h linux-libre-5.1.21-gnu/drivers/usb/serial/pl2303.h
--- linux-libre-5.1-gnu/drivers/usb/serial/pl2303.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/serial/pl2303.h	2019-07-28 02:28:39.000000000 -0400
@@ -155,3 +155,6 @@
 #define SMART_VENDOR_ID	0x0b8c
 #define SMART_PRODUCT_ID	0x2303
 
+/* Allied Telesis VT-Kit3 */
+#define AT_VENDOR_ID		0x0caa
+#define AT_VTKIT3_PRODUCT_ID	0x3001
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/storage/scsiglue.c linux-libre-5.1.21-gnu/drivers/usb/storage/scsiglue.c
--- linux-libre-5.1-gnu/drivers/usb/storage/scsiglue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/storage/scsiglue.c	2019-07-28 02:28:39.000000000 -0400
@@ -65,6 +65,7 @@ static const char* host_info(struct Scsi
 static int slave_alloc (struct scsi_device *sdev)
 {
 	struct us_data *us = host_to_us(sdev->host);
+	int maxp;
 
 	/*
 	 * Set the INQUIRY transfer length to 36.  We don't use any of
@@ -74,20 +75,17 @@ static int slave_alloc (struct scsi_devi
 	sdev->inquiry_len = 36;
 
 	/*
-	 * USB has unusual DMA-alignment requirements: Although the
-	 * starting address of each scatter-gather element doesn't matter,
-	 * the length of each element except the last must be divisible
-	 * by the Bulk maxpacket value.  There's currently no way to
-	 * express this by block-layer constraints, so we'll cop out
-	 * and simply require addresses to be aligned at 512-byte
-	 * boundaries.  This is okay since most block I/O involves
-	 * hardware sectors that are multiples of 512 bytes in length,
-	 * and since host controllers up through USB 2.0 have maxpacket
-	 * values no larger than 512.
-	 *
-	 * But it doesn't suffice for Wireless USB, where Bulk maxpacket
-	 * values can be as large as 2048.  To make that work properly
-	 * will require changes to the block layer.
+	 * USB has unusual scatter-gather requirements: the length of each
+	 * scatterlist element except the last must be divisible by the
+	 * Bulk maxpacket value.  Fortunately this value is always a
+	 * power of 2.  Inform the block layer about this requirement.
+	 */
+	maxp = usb_maxpacket(us->pusb_dev, us->recv_bulk_pipe, 0);
+	blk_queue_virt_boundary(sdev->request_queue, maxp - 1);
+
+	/*
+	 * Some host controllers may have alignment requirements.
+	 * We'll play it safe by requiring 512-byte alignment always.
 	 */
 	blk_queue_update_dma_alignment(sdev->request_queue, (512 - 1));
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/storage/uas.c linux-libre-5.1.21-gnu/drivers/usb/storage/uas.c
--- linux-libre-5.1-gnu/drivers/usb/storage/uas.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/storage/uas.c	2019-07-28 02:28:39.000000000 -0400
@@ -789,24 +789,33 @@ static int uas_slave_alloc(struct scsi_d
 {
 	struct uas_dev_info *devinfo =
 		(struct uas_dev_info *)sdev->host->hostdata;
+	int maxp;
 
 	sdev->hostdata = devinfo;
 
 	/*
-	 * USB has unusual DMA-alignment requirements: Although the
-	 * starting address of each scatter-gather element doesn't matter,
-	 * the length of each element except the last must be divisible
-	 * by the Bulk maxpacket value.  There's currently no way to
-	 * express this by block-layer constraints, so we'll cop out
-	 * and simply require addresses to be aligned at 512-byte
-	 * boundaries.  This is okay since most block I/O involves
-	 * hardware sectors that are multiples of 512 bytes in length,
-	 * and since host controllers up through USB 2.0 have maxpacket
-	 * values no larger than 512.
+	 * We have two requirements here. We must satisfy the requirements
+	 * of the physical HC and the demands of the protocol, as we
+	 * definitely want no additional memory allocation in this path
+	 * ruling out using bounce buffers.
 	 *
-	 * But it doesn't suffice for Wireless USB, where Bulk maxpacket
-	 * values can be as large as 2048.  To make that work properly
-	 * will require changes to the block layer.
+	 * For a transmission on USB to continue we must never send
+	 * a package that is smaller than maxpacket. Hence the length of each
+         * scatterlist element except the last must be divisible by the
+         * Bulk maxpacket value.
+	 * If the HC does not ensure that through SG,
+	 * the upper layer must do that. We must assume nothing
+	 * about the capabilities off the HC, so we use the most
+	 * pessimistic requirement.
+	 */
+
+	maxp = usb_maxpacket(devinfo->udev, devinfo->data_in_pipe, 0);
+	blk_queue_virt_boundary(sdev->request_queue, maxp - 1);
+
+	/*
+	 * The protocol has no requirements on alignment in the strict sense.
+	 * Controllers may or may not have alignment restrictions.
+	 * As this is not exported, we use an extremely conservative guess.
 	 */
 	blk_queue_update_dma_alignment(sdev->request_queue, (512 - 1));
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/storage/unusual_realtek.h linux-libre-5.1.21-gnu/drivers/usb/storage/unusual_realtek.h
--- linux-libre-5.1-gnu/drivers/usb/storage/unusual_realtek.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/storage/unusual_realtek.h	2019-07-28 02:28:39.000000000 -0400
@@ -17,6 +17,11 @@ UNUSUAL_DEV(0x0bda, 0x0138, 0x0000, 0x99
 		"USB Card Reader",
 		USB_SC_DEVICE, USB_PR_DEVICE, init_realtek_cr, 0),
 
+UNUSUAL_DEV(0x0bda, 0x0153, 0x0000, 0x9999,
+		"Realtek",
+		"USB Card Reader",
+		USB_SC_DEVICE, USB_PR_DEVICE, init_realtek_cr, 0),
+
 UNUSUAL_DEV(0x0bda, 0x0158, 0x0000, 0x9999,
 		"Realtek",
 		"USB Card Reader",
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/typec/tcpm/fusb302.c linux-libre-5.1.21-gnu/drivers/usb/typec/tcpm/fusb302.c
--- linux-libre-5.1-gnu/drivers/usb/typec/tcpm/fusb302.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/typec/tcpm/fusb302.c	2019-07-28 02:28:39.000000000 -0400
@@ -634,6 +634,8 @@ static int fusb302_set_toggling(struct f
 			return ret;
 		chip->intr_togdone = false;
 	} else {
+		/* Datasheet says vconn MUST be off when toggling */
+		WARN(chip->vconn_on, "Vconn is on during toggle start");
 		/* unmask TOGDONE interrupt */
 		ret = fusb302_i2c_clear_bits(chip, FUSB_REG_MASKA,
 					     FUSB_REG_MASKA_TOGDONE);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/typec/tps6598x.c linux-libre-5.1.21-gnu/drivers/usb/typec/tps6598x.c
--- linux-libre-5.1-gnu/drivers/usb/typec/tps6598x.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/typec/tps6598x.c	2019-07-28 02:28:39.000000000 -0400
@@ -41,7 +41,7 @@
 #define TPS_STATUS_VCONN(s)		(!!((s) & BIT(7)))
 
 /* TPS_REG_SYSTEM_CONF bits */
-#define TPS_SYSCONF_PORTINFO(c)		((c) & 3)
+#define TPS_SYSCONF_PORTINFO(c)		((c) & 7)
 
 enum {
 	TPS_PORTINFO_SINK,
@@ -127,7 +127,7 @@ tps6598x_block_read(struct tps6598x *tps
 }
 
 static int tps6598x_block_write(struct tps6598x *tps, u8 reg,
-				void *val, size_t len)
+				const void *val, size_t len)
 {
 	u8 data[TPS_MAX_LEN + 1];
 
@@ -173,7 +173,7 @@ static inline int tps6598x_write64(struc
 static inline int
 tps6598x_write_4cc(struct tps6598x *tps, u8 reg, const char *val)
 {
-	return tps6598x_block_write(tps, reg, &val, sizeof(u32));
+	return tps6598x_block_write(tps, reg, val, 4);
 }
 
 static int tps6598x_read_partner_identity(struct tps6598x *tps)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/usb/usbip/stub_dev.c linux-libre-5.1.21-gnu/drivers/usb/usbip/stub_dev.c
--- linux-libre-5.1-gnu/drivers/usb/usbip/stub_dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/usb/usbip/stub_dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -301,9 +301,17 @@ static int stub_probe(struct usb_device
 	const char *udev_busid = dev_name(&udev->dev);
 	struct bus_id_priv *busid_priv;
 	int rc = 0;
+	char save_status;
 
 	dev_dbg(&udev->dev, "Enter probe\n");
 
+	/* Not sure if this is our device. Allocate here to avoid
+	 * calling alloc while holding busid_table lock.
+	 */
+	sdev = stub_device_alloc(udev);
+	if (!sdev)
+		return -ENOMEM;
+
 	/* check we should claim or not by busid_table */
 	busid_priv = get_busid_priv(udev_busid);
 	if (!busid_priv || (busid_priv->status == STUB_BUSID_REMOV) ||
@@ -318,6 +326,9 @@ static int stub_probe(struct usb_device
 		 * See driver_probe_device() in driver/base/dd.c
 		 */
 		rc = -ENODEV;
+		if (!busid_priv)
+			goto sdev_free;
+
 		goto call_put_busid_priv;
 	}
 
@@ -337,12 +348,6 @@ static int stub_probe(struct usb_device
 		goto call_put_busid_priv;
 	}
 
-	/* ok, this is my device */
-	sdev = stub_device_alloc(udev);
-	if (!sdev) {
-		rc = -ENOMEM;
-		goto call_put_busid_priv;
-	}
 
 	dev_info(&udev->dev,
 		"usbip-host: register new device (bus %u dev %u)\n",
@@ -352,9 +357,16 @@ static int stub_probe(struct usb_device
 
 	/* set private data to usb_device */
 	dev_set_drvdata(&udev->dev, sdev);
+
 	busid_priv->sdev = sdev;
 	busid_priv->udev = udev;
 
+	save_status = busid_priv->status;
+	busid_priv->status = STUB_BUSID_ALLOC;
+
+	/* release the busid_lock */
+	put_busid_priv(busid_priv);
+
 	/*
 	 * Claim this hub port.
 	 * It doesn't matter what value we pass as owner
@@ -372,10 +384,8 @@ static int stub_probe(struct usb_device
 		dev_err(&udev->dev, "stub_add_files for %s\n", udev_busid);
 		goto err_files;
 	}
-	busid_priv->status = STUB_BUSID_ALLOC;
 
-	rc = 0;
-	goto call_put_busid_priv;
+	return 0;
 
 err_files:
 	usb_hub_release_port(udev->parent, udev->portnum,
@@ -384,23 +394,30 @@ err_port:
 	dev_set_drvdata(&udev->dev, NULL);
 	usb_put_dev(udev);
 
+	/* we already have busid_priv, just lock busid_lock */
+	spin_lock(&busid_priv->busid_lock);
 	busid_priv->sdev = NULL;
-	stub_device_free(sdev);
+	busid_priv->status = save_status;
+	spin_unlock(&busid_priv->busid_lock);
+	/* lock is released - go to free */
+	goto sdev_free;
 
 call_put_busid_priv:
+	/* release the busid_lock */
 	put_busid_priv(busid_priv);
+
+sdev_free:
+	stub_device_free(sdev);
+
 	return rc;
 }
 
 static void shutdown_busid(struct bus_id_priv *busid_priv)
 {
-	if (busid_priv->sdev && !busid_priv->shutdown_busid) {
-		busid_priv->shutdown_busid = 1;
-		usbip_event_add(&busid_priv->sdev->ud, SDEV_EVENT_REMOVED);
+	usbip_event_add(&busid_priv->sdev->ud, SDEV_EVENT_REMOVED);
 
-		/* wait for the stop of the event handler */
-		usbip_stop_eh(&busid_priv->sdev->ud);
-	}
+	/* wait for the stop of the event handler */
+	usbip_stop_eh(&busid_priv->sdev->ud);
 }
 
 /*
@@ -427,11 +444,16 @@ static void stub_disconnect(struct usb_d
 	/* get stub_device */
 	if (!sdev) {
 		dev_err(&udev->dev, "could not get device");
-		goto call_put_busid_priv;
+		/* release busid_lock */
+		put_busid_priv(busid_priv);
+		return;
 	}
 
 	dev_set_drvdata(&udev->dev, NULL);
 
+	/* release busid_lock before call to remove device files */
+	put_busid_priv(busid_priv);
+
 	/*
 	 * NOTE: rx/tx threads are invoked for each usb_device.
 	 */
@@ -442,27 +464,36 @@ static void stub_disconnect(struct usb_d
 				  (struct usb_dev_state *) udev);
 	if (rc) {
 		dev_dbg(&udev->dev, "unable to release port\n");
-		goto call_put_busid_priv;
+		return;
 	}
 
 	/* If usb reset is called from event handler */
 	if (usbip_in_eh(current))
-		goto call_put_busid_priv;
+		return;
+
+	/* we already have busid_priv, just lock busid_lock */
+	spin_lock(&busid_priv->busid_lock);
+	if (!busid_priv->shutdown_busid)
+		busid_priv->shutdown_busid = 1;
+	/* release busid_lock */
+	spin_unlock(&busid_priv->busid_lock);
 
 	/* shutdown the current connection */
 	shutdown_busid(busid_priv);
 
 	usb_put_dev(sdev->udev);
 
+	/* we already have busid_priv, just lock busid_lock */
+	spin_lock(&busid_priv->busid_lock);
 	/* free sdev */
 	busid_priv->sdev = NULL;
 	stub_device_free(sdev);
 
 	if (busid_priv->status == STUB_BUSID_ALLOC)
 		busid_priv->status = STUB_BUSID_ADDED;
-
-call_put_busid_priv:
-	put_busid_priv(busid_priv);
+	/* release busid_lock */
+	spin_unlock(&busid_priv->busid_lock);
+	return;
 }
 
 #ifdef CONFIG_PM
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/vfio/pci/vfio_pci_nvlink2.c linux-libre-5.1.21-gnu/drivers/vfio/pci/vfio_pci_nvlink2.c
--- linux-libre-5.1-gnu/drivers/vfio/pci/vfio_pci_nvlink2.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/vfio/pci/vfio_pci_nvlink2.c	2019-07-28 02:28:39.000000000 -0400
@@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_p
 	return 0;
 
 free_exit:
+	if (data->base)
+		memunmap(data->base);
 	kfree(data);
 
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/vfio/vfio.c linux-libre-5.1.21-gnu/drivers/vfio/vfio.c
--- linux-libre-5.1-gnu/drivers/vfio/vfio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/vfio/vfio.c	2019-07-28 02:28:39.000000000 -0400
@@ -34,6 +34,7 @@
 #include <linux/uaccess.h>
 #include <linux/vfio.h>
 #include <linux/wait.h>
+#include <linux/sched/signal.h>
 
 #define DRIVER_VERSION	"0.3"
 #define DRIVER_AUTHOR	"Alex Williamson <alex.williamson@redhat.com>"
@@ -904,30 +905,17 @@ void *vfio_device_data(struct vfio_devic
 }
 EXPORT_SYMBOL_GPL(vfio_device_data);
 
-/* Given a referenced group, check if it contains the device */
-static bool vfio_dev_present(struct vfio_group *group, struct device *dev)
-{
-	struct vfio_device *device;
-
-	device = vfio_group_get_device(group, dev);
-	if (!device)
-		return false;
-
-	vfio_device_put(device);
-	return true;
-}
-
 /*
  * Decrement the device reference count and wait for the device to be
  * removed.  Open file descriptors for the device... */
 void *vfio_del_group_dev(struct device *dev)
 {
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 	struct vfio_device *device = dev_get_drvdata(dev);
 	struct vfio_group *group = device->group;
 	void *device_data = device->device_data;
 	struct vfio_unbound_dev *unbound;
 	unsigned int i = 0;
-	long ret;
 	bool interrupted = false;
 
 	/*
@@ -964,6 +952,8 @@ void *vfio_del_group_dev(struct device *
 	 * interval with counter to allow the driver to take escalating
 	 * measures to release the device if it has the ability to do so.
 	 */
+	add_wait_queue(&vfio.release_q, &wait);
+
 	do {
 		device = vfio_group_get_device(group, dev);
 		if (!device)
@@ -975,12 +965,10 @@ void *vfio_del_group_dev(struct device *
 		vfio_device_put(device);
 
 		if (interrupted) {
-			ret = wait_event_timeout(vfio.release_q,
-					!vfio_dev_present(group, dev), HZ * 10);
+			wait_woken(&wait, TASK_UNINTERRUPTIBLE, HZ * 10);
 		} else {
-			ret = wait_event_interruptible_timeout(vfio.release_q,
-					!vfio_dev_present(group, dev), HZ * 10);
-			if (ret == -ERESTARTSYS) {
+			wait_woken(&wait, TASK_INTERRUPTIBLE, HZ * 10);
+			if (signal_pending(current)) {
 				interrupted = true;
 				dev_warn(dev,
 					 "Device is currently in use, task"
@@ -989,8 +977,10 @@ void *vfio_del_group_dev(struct device *
 					 current->comm, task_pid_nr(current));
 			}
 		}
-	} while (ret <= 0);
 
+	} while (1);
+
+	remove_wait_queue(&vfio.release_q, &wait);
 	/*
 	 * In order to support multiple devices per group, devices can be
 	 * plucked from the group while other devices in the group are still
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/vhost/net.c linux-libre-5.1.21-gnu/drivers/vhost/net.c
--- linux-libre-5.1-gnu/drivers/vhost/net.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/vhost/net.c	2019-07-28 02:28:39.000000000 -0400
@@ -36,7 +36,7 @@
 
 #include "vhost.h"
 
-static int experimental_zcopytx = 1;
+static int experimental_zcopytx = 0;
 module_param(experimental_zcopytx, int, 0444);
 MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;"
 		                       " 1 -Enable; 0 - Disable");
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/core/fbcmap.c linux-libre-5.1.21-gnu/drivers/video/fbdev/core/fbcmap.c
--- linux-libre-5.1-gnu/drivers/video/fbdev/core/fbcmap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/core/fbcmap.c	2019-07-28 02:28:39.000000000 -0400
@@ -94,6 +94,8 @@ int fb_alloc_cmap_gfp(struct fb_cmap *cm
 	int size = len * sizeof(u16);
 	int ret = -ENOMEM;
 
+	flags |= __GFP_NOWARN;
+
 	if (cmap->len != len) {
 		fb_dealloc_cmap(cmap);
 		if (!len)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/core/fbcon.c linux-libre-5.1.21-gnu/drivers/video/fbdev/core/fbcon.c
--- linux-libre-5.1-gnu/drivers/video/fbdev/core/fbcon.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/core/fbcon.c	2019-07-28 02:28:39.000000000 -0400
@@ -1069,7 +1069,7 @@ static void fbcon_init(struct vc_data *v
 
 	cap = info->flags;
 
-	if (console_loglevel <= CONSOLE_LOGLEVEL_QUIET)
+	if (logo_shown < 0 && console_loglevel <= CONSOLE_LOGLEVEL_QUIET)
 		logo_shown = FBCON_LOGO_DONTSHOW;
 
 	if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW ||
@@ -1248,7 +1248,7 @@ finished:
 	if (free_font)
 		vc->vc_font.data = NULL;
 
-	if (vc->vc_hi_font_mask)
+	if (vc->vc_hi_font_mask && vc->vc_screenbuf)
 		set_vc_hi_font(vc, false);
 
 	if (!con_is_bound(&fb_con))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/core/modedb.c linux-libre-5.1.21-gnu/drivers/video/fbdev/core/modedb.c
--- linux-libre-5.1-gnu/drivers/video/fbdev/core/modedb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/core/modedb.c	2019-07-28 02:28:39.000000000 -0400
@@ -935,6 +935,9 @@ void fb_var_to_videomode(struct fb_video
 	if (var->vmode & FB_VMODE_DOUBLE)
 		vtotal *= 2;
 
+	if (!htotal || !vtotal)
+		return;
+
 	hfreq = pixclock/htotal;
 	mode->refresh = hfreq/vtotal;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/efifb.c linux-libre-5.1.21-gnu/drivers/video/fbdev/efifb.c
--- linux-libre-5.1-gnu/drivers/video/fbdev/efifb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/efifb.c	2019-07-28 02:28:39.000000000 -0400
@@ -464,7 +464,8 @@ static int efifb_probe(struct platform_d
 	info->apertures->ranges[0].base = efifb_fix.smem_start;
 	info->apertures->ranges[0].size = size_remap;
 
-	if (!efi_mem_desc_lookup(efifb_fix.smem_start, &md)) {
+	if (efi_enabled(EFI_BOOT) &&
+	    !efi_mem_desc_lookup(efifb_fix.smem_start, &md)) {
 		if ((efifb_fix.smem_start + efifb_fix.smem_len) >
 		    (md.phys_addr + (md.num_pages << EFI_PAGE_SHIFT))) {
 			pr_err("efifb: video memory @ 0x%lx spans multiple EFI memory regions\n",
@@ -476,8 +477,12 @@ static int efifb_probe(struct platform_d
 		 * If the UEFI memory map covers the efifb region, we may only
 		 * remap it using the attributes the memory map prescribes.
 		 */
-		mem_flags |= EFI_MEMORY_WT | EFI_MEMORY_WB;
-		mem_flags &= md.attribute;
+		md.attribute &= EFI_MEMORY_UC | EFI_MEMORY_WC |
+				EFI_MEMORY_WT | EFI_MEMORY_WB;
+		if (md.attribute) {
+			mem_flags |= EFI_MEMORY_WT | EFI_MEMORY_WB;
+			mem_flags &= md.attribute;
+		}
 	}
 	if (mem_flags & EFI_MEMORY_WC)
 		info->screen_base = ioremap_wc(efifb_fix.smem_start,
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/hgafb.c linux-libre-5.1.21-gnu/drivers/video/fbdev/hgafb.c
--- linux-libre-5.1-gnu/drivers/video/fbdev/hgafb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/hgafb.c	2019-07-28 02:28:39.000000000 -0400
@@ -285,6 +285,8 @@ static int hga_card_detect(void)
 	hga_vram_len  = 0x08000;
 
 	hga_vram = ioremap(0xb0000, hga_vram_len);
+	if (!hga_vram)
+		goto error;
 
 	if (request_region(0x3b0, 12, "hgafb"))
 		release_io_ports = 1;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/imsttfb.c linux-libre-5.1.21-gnu/drivers/video/fbdev/imsttfb.c
--- linux-libre-5.1-gnu/drivers/video/fbdev/imsttfb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/imsttfb.c	2019-07-28 02:28:39.000000000 -0400
@@ -1515,6 +1515,11 @@ static int imsttfb_probe(struct pci_dev
 	info->fix.smem_start = addr;
 	info->screen_base = (__u8 *)ioremap(addr, par->ramdac == IBM ?
 					    0x400000 : 0x800000);
+	if (!info->screen_base) {
+		release_mem_region(addr, size);
+		framebuffer_release(info);
+		return -ENOMEM;
+	}
 	info->fix.mmio_start = addr + 0x800000;
 	par->dc_regs = ioremap(addr + 0x800000, 0x1000);
 	par->cmap_regs_phys = addr + 0x840000;
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/sm712fb.c linux-libre-5.1.21-gnu/drivers/video/fbdev/sm712fb.c
--- linux-libre-5.1-gnu/drivers/video/fbdev/sm712fb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/sm712fb.c	2019-07-28 02:28:39.000000000 -0400
@@ -530,6 +530,65 @@ static const struct modeinit vgamode[] =
 			0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
 		},
 	},
+	{	/*  1024 x 768  16Bpp  60Hz */
+		1024, 768, 16, 60,
+		/*  Init_MISC */
+		0xEB,
+		{	/*  Init_SR0_SR4 */
+			0x03, 0x01, 0x0F, 0x03, 0x0E,
+		},
+		{	/*  Init_SR10_SR24 */
+			0xF3, 0xB6, 0xC0, 0xDD, 0x00, 0x0E, 0x17, 0x2C,
+			0x99, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0xC4, 0x30, 0x02, 0x01, 0x01,
+		},
+		{	/*  Init_SR30_SR75 */
+			0x38, 0x03, 0x20, 0x09, 0xC0, 0x3A, 0x3A, 0x3A,
+			0x3A, 0x3A, 0x3A, 0x3A, 0x00, 0x00, 0x03, 0xFF,
+			0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
+			0x20, 0x0C, 0x44, 0x20, 0x00, 0x00, 0x00, 0x3A,
+			0x06, 0x68, 0xA7, 0x7F, 0x83, 0x24, 0xFF, 0x03,
+			0x0F, 0x60, 0x59, 0x3A, 0x3A, 0x00, 0x00, 0x3A,
+			0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
+			0x50, 0x03, 0x74, 0x14, 0x3B, 0x0D, 0x09, 0x02,
+			0x04, 0x45, 0x30, 0x30, 0x40, 0x20,
+		},
+		{	/*  Init_SR80_SR93 */
+			0xFF, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3A,
+			0xF7, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x3A, 0x3A,
+			0x00, 0x00, 0x00, 0x00,
+		},
+		{	/*  Init_SRA0_SRAF */
+			0x00, 0xFB, 0x9F, 0x01, 0x00, 0xED, 0xED, 0xED,
+			0x7B, 0xFB, 0xFF, 0xFF, 0x97, 0xEF, 0xBF, 0xDF,
+		},
+		{	/*  Init_GR00_GR08 */
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
+			0xFF,
+		},
+		{	/*  Init_AR00_AR14 */
+			0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+			0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+			0x41, 0x00, 0x0F, 0x00, 0x00,
+		},
+		{	/*  Init_CR00_CR18 */
+			0xA3, 0x7F, 0x7F, 0x00, 0x85, 0x16, 0x24, 0xF5,
+			0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			0x03, 0x09, 0xFF, 0x80, 0x40, 0xFF, 0x00, 0xE3,
+			0xFF,
+		},
+		{	/*  Init_CR30_CR4D */
+			0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x20,
+			0x00, 0x00, 0x00, 0x40, 0x00, 0xFF, 0xBF, 0xFF,
+			0xA3, 0x7F, 0x00, 0x86, 0x15, 0x24, 0xFF, 0x00,
+			0x01, 0x07, 0xE5, 0x20, 0x7F, 0xFF,
+		},
+		{	/*  Init_CR90_CRA7 */
+			0x55, 0xD9, 0x5D, 0xE1, 0x86, 0x1B, 0x8E, 0x26,
+			0xDA, 0x8D, 0xDE, 0x94, 0x00, 0x00, 0x18, 0x00,
+			0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
+		},
+	},
 	{	/*  mode#5: 1024 x 768  24Bpp  60Hz */
 		1024, 768, 24, 60,
 		/*  Init_MISC */
@@ -827,67 +886,80 @@ static inline unsigned int chan_to_field
 
 static int smtc_blank(int blank_mode, struct fb_info *info)
 {
+	struct smtcfb_info *sfb = info->par;
+
 	/* clear DPMS setting */
 	switch (blank_mode) {
 	case FB_BLANK_UNBLANK:
 		/* Screen On: HSync: On, VSync : On */
+
+		switch (sfb->chip_id) {
+		case 0x710:
+		case 0x712:
+			smtc_seqw(0x6a, 0x16);
+			smtc_seqw(0x6b, 0x02);
+			break;
+		case 0x720:
+			smtc_seqw(0x6a, 0x0d);
+			smtc_seqw(0x6b, 0x02);
+			break;
+		}
+
+		smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
 		smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
-		smtc_seqw(0x6a, 0x16);
-		smtc_seqw(0x6b, 0x02);
 		smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
 		smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
-		smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
-		smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
 		smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
+		smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
 		break;
 	case FB_BLANK_NORMAL:
 		/* Screen Off: HSync: On, VSync : On   Soft blank */
+		smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
+		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+		smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
 		smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
+		smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
 		smtc_seqw(0x6a, 0x16);
 		smtc_seqw(0x6b, 0x02);
-		smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
-		smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
-		smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
-		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
 		break;
 	case FB_BLANK_VSYNC_SUSPEND:
 		/* Screen On: HSync: On, VSync : Off */
+		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
+		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
 		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
-		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
-		smtc_seqw(0x6a, 0x0c);
-		smtc_seqw(0x6b, 0x02);
 		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
 		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
-		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
-		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
-		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
 		smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+		smtc_seqw(0x6a, 0x0c);
+		smtc_seqw(0x6b, 0x02);
 		break;
 	case FB_BLANK_HSYNC_SUSPEND:
 		/* Screen On: HSync: Off, VSync : On */
+		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
+		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
 		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
-		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
-		smtc_seqw(0x6a, 0x0c);
-		smtc_seqw(0x6b, 0x02);
 		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
 		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
-		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
-		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
-		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
 		smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+		smtc_seqw(0x6a, 0x0c);
+		smtc_seqw(0x6b, 0x02);
 		break;
 	case FB_BLANK_POWERDOWN:
 		/* Screen On: HSync: Off, VSync : Off */
+		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
+		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
 		smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
-		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
-		smtc_seqw(0x6a, 0x0c);
-		smtc_seqw(0x6b, 0x02);
 		smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+		smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
 		smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
-		smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
-		smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
-		smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
 		smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+		smtc_seqw(0x6a, 0x0c);
+		smtc_seqw(0x6b, 0x02);
 		break;
 	default:
 		return -EINVAL;
@@ -1145,8 +1217,10 @@ static void sm7xx_set_timing(struct smtc
 
 		/* init SEQ register SR30 - SR75 */
 		for (i = 0; i < SIZE_SR30_SR75; i++)
-			if ((i + 0x30) != 0x62 && (i + 0x30) != 0x6a &&
-			    (i + 0x30) != 0x6b)
+			if ((i + 0x30) != 0x30 && (i + 0x30) != 0x62 &&
+			    (i + 0x30) != 0x6a && (i + 0x30) != 0x6b &&
+			    (i + 0x30) != 0x70 && (i + 0x30) != 0x71 &&
+			    (i + 0x30) != 0x74 && (i + 0x30) != 0x75)
 				smtc_seqw(i + 0x30,
 					  vgamode[j].init_sr30_sr75[i]);
 
@@ -1171,8 +1245,12 @@ static void sm7xx_set_timing(struct smtc
 			smtc_crtcw(i, vgamode[j].init_cr00_cr18[i]);
 
 		/* init CRTC register CR30 - CR4D */
-		for (i = 0; i < SIZE_CR30_CR4D; i++)
+		for (i = 0; i < SIZE_CR30_CR4D; i++) {
+			if ((i + 0x30) >= 0x3B && (i + 0x30) <= 0x3F)
+				/* side-effect, don't write to CR3B-CR3F */
+				continue;
 			smtc_crtcw(i + 0x30, vgamode[j].init_cr30_cr4d[i]);
+		}
 
 		/* init CRTC register CR90 - CRA7 */
 		for (i = 0; i < SIZE_CR90_CRA7; i++)
@@ -1323,6 +1401,11 @@ static int smtc_map_smem(struct smtcfb_i
 {
 	sfb->fb->fix.smem_start = pci_resource_start(pdev, 0);
 
+	if (sfb->chip_id == 0x720)
+		/* on SM720, the framebuffer starts at the 1 MB offset */
+		sfb->fb->fix.smem_start += 0x00200000;
+
+	/* XXX: is it safe for SM720 on Big-Endian? */
 	if (sfb->fb->var.bits_per_pixel == 32)
 		sfb->fb->fix.smem_start += big_addr;
 
@@ -1360,12 +1443,82 @@ static inline void sm7xx_init_hw(void)
 	outb_p(0x11, 0x3c5);
 }
 
+static u_long sm7xx_vram_probe(struct smtcfb_info *sfb)
+{
+	u8 vram;
+
+	switch (sfb->chip_id) {
+	case 0x710:
+	case 0x712:
+		/*
+		 * Assume SM712 graphics chip has 4MB VRAM.
+		 *
+		 * FIXME: SM712 can have 2MB VRAM, which is used on earlier
+		 * laptops, such as IBM Thinkpad 240X. This driver would
+		 * probably crash on those machines. If anyone gets one of
+		 * those and is willing to help, run "git blame" and send me
+		 * an E-mail.
+		 */
+		return 0x00400000;
+	case 0x720:
+		outb_p(0x76, 0x3c4);
+		vram = inb_p(0x3c5) >> 6;
+
+		if (vram == 0x00)
+			return 0x00800000;  /* 8 MB */
+		else if (vram == 0x01)
+			return 0x01000000;  /* 16 MB */
+		else if (vram == 0x02)
+			return 0x00400000;  /* illegal, fallback to 4 MB */
+		else if (vram == 0x03)
+			return 0x00400000;  /* 4 MB */
+	}
+	return 0;  /* unknown hardware */
+}
+
+static void sm7xx_resolution_probe(struct smtcfb_info *sfb)
+{
+	/* get mode parameter from smtc_scr_info */
+	if (smtc_scr_info.lfb_width != 0) {
+		sfb->fb->var.xres = smtc_scr_info.lfb_width;
+		sfb->fb->var.yres = smtc_scr_info.lfb_height;
+		sfb->fb->var.bits_per_pixel = smtc_scr_info.lfb_depth;
+		goto final;
+	}
+
+	/*
+	 * No parameter, default resolution is 1024x768-16.
+	 *
+	 * FIXME: earlier laptops, such as IBM Thinkpad 240X, has a 800x600
+	 * panel, also see the comments about Thinkpad 240X above.
+	 */
+	sfb->fb->var.xres = SCREEN_X_RES;
+	sfb->fb->var.yres = SCREEN_Y_RES_PC;
+	sfb->fb->var.bits_per_pixel = SCREEN_BPP;
+
+#ifdef CONFIG_MIPS
+	/*
+	 * Loongson MIPS netbooks use 1024x600 LCD panels, which is the original
+	 * target platform of this driver, but nearly all old x86 laptops have
+	 * 1024x768. Lighting 768 panels using 600's timings would partially
+	 * garble the display, so we don't want that. But it's not possible to
+	 * distinguish them reliably.
+	 *
+	 * So we change the default to 768, but keep 600 as-is on MIPS.
+	 */
+	sfb->fb->var.yres = SCREEN_Y_RES_NETBOOK;
+#endif
+
+final:
+	big_pixel_depth(sfb->fb->var.bits_per_pixel, smtc_scr_info.lfb_depth);
+}
+
 static int smtcfb_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	struct smtcfb_info *sfb;
 	struct fb_info *info;
-	u_long smem_size = 0x00800000;	/* default 8MB */
+	u_long smem_size;
 	int err;
 	unsigned long mmio_base;
 
@@ -1405,29 +1558,19 @@ static int smtcfb_pci_probe(struct pci_d
 
 	sm7xx_init_hw();
 
-	/* get mode parameter from smtc_scr_info */
-	if (smtc_scr_info.lfb_width != 0) {
-		sfb->fb->var.xres = smtc_scr_info.lfb_width;
-		sfb->fb->var.yres = smtc_scr_info.lfb_height;
-		sfb->fb->var.bits_per_pixel = smtc_scr_info.lfb_depth;
-	} else {
-		/* default resolution 1024x600 16bit mode */
-		sfb->fb->var.xres = SCREEN_X_RES;
-		sfb->fb->var.yres = SCREEN_Y_RES;
-		sfb->fb->var.bits_per_pixel = SCREEN_BPP;
-	}
-
-	big_pixel_depth(sfb->fb->var.bits_per_pixel, smtc_scr_info.lfb_depth);
 	/* Map address and memory detection */
 	mmio_base = pci_resource_start(pdev, 0);
 	pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chip_rev_id);
 
+	smem_size = sm7xx_vram_probe(sfb);
+	dev_info(&pdev->dev, "%lu MiB of VRAM detected.\n",
+					smem_size / 1048576);
+
 	switch (sfb->chip_id) {
 	case 0x710:
 	case 0x712:
 		sfb->fb->fix.mmio_start = mmio_base + 0x00400000;
 		sfb->fb->fix.mmio_len = 0x00400000;
-		smem_size = SM712_VIDEOMEMORYSIZE;
 		sfb->lfb = ioremap(mmio_base, mmio_addr);
 		if (!sfb->lfb) {
 			dev_err(&pdev->dev,
@@ -1459,8 +1602,7 @@ static int smtcfb_pci_probe(struct pci_d
 	case 0x720:
 		sfb->fb->fix.mmio_start = mmio_base;
 		sfb->fb->fix.mmio_len = 0x00200000;
-		smem_size = SM722_VIDEOMEMORYSIZE;
-		sfb->dp_regs = ioremap(mmio_base, 0x00a00000);
+		sfb->dp_regs = ioremap(mmio_base, 0x00200000 + smem_size);
 		sfb->lfb = sfb->dp_regs + 0x00200000;
 		sfb->mmio = (smtc_regbaseaddress =
 		    sfb->dp_regs + 0x000c0000);
@@ -1477,6 +1619,9 @@ static int smtcfb_pci_probe(struct pci_d
 		goto failed_fb;
 	}
 
+	/* probe and decide resolution */
+	sm7xx_resolution_probe(sfb);
+
 	/* can support 32 bpp */
 	if (sfb->fb->var.bits_per_pixel == 15)
 		sfb->fb->var.bits_per_pixel = 16;
@@ -1487,7 +1632,11 @@ static int smtcfb_pci_probe(struct pci_d
 	if (err)
 		goto failed;
 
-	smtcfb_setmode(sfb);
+	/*
+	 * The screen would be temporarily garbled when sm712fb takes over
+	 * vesafb or VGA text mode. Zero the framebuffer.
+	 */
+	memset_io(sfb->lfb, 0, sfb->fb->fix.smem_len);
 
 	err = register_framebuffer(info);
 	if (err < 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/sm712.h linux-libre-5.1.21-gnu/drivers/video/fbdev/sm712.h
--- linux-libre-5.1-gnu/drivers/video/fbdev/sm712.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/sm712.h	2019-07-28 02:28:39.000000000 -0400
@@ -15,14 +15,10 @@
 
 #define FB_ACCEL_SMI_LYNX 88
 
-#define SCREEN_X_RES      1024
-#define SCREEN_Y_RES      600
-#define SCREEN_BPP        16
-
-/*Assume SM712 graphics chip has 4MB VRAM */
-#define SM712_VIDEOMEMORYSIZE	  0x00400000
-/*Assume SM722 graphics chip has 8MB VRAM */
-#define SM722_VIDEOMEMORYSIZE	  0x00800000
+#define SCREEN_X_RES          1024
+#define SCREEN_Y_RES_PC       768
+#define SCREEN_Y_RES_NETBOOK  600
+#define SCREEN_BPP            16
 
 #define dac_reg	(0x3c8)
 #define dac_val	(0x3c9)
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/video/fbdev/udlfb.c linux-libre-5.1.21-gnu/drivers/video/fbdev/udlfb.c
--- linux-libre-5.1-gnu/drivers/video/fbdev/udlfb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/video/fbdev/udlfb.c	2019-07-28 02:28:39.000000000 -0400
@@ -594,8 +594,7 @@ static int dlfb_render_hline(struct dlfb
 	return 0;
 }
 
-static int dlfb_handle_damage(struct dlfb_data *dlfb, int x, int y,
-	       int width, int height, char *data)
+static int dlfb_handle_damage(struct dlfb_data *dlfb, int x, int y, int width, int height)
 {
 	int i, ret;
 	char *cmd;
@@ -607,21 +606,29 @@ static int dlfb_handle_damage(struct dlf
 
 	start_cycles = get_cycles();
 
+	mutex_lock(&dlfb->render_mutex);
+
 	aligned_x = DL_ALIGN_DOWN(x, sizeof(unsigned long));
 	width = DL_ALIGN_UP(width + (x-aligned_x), sizeof(unsigned long));
 	x = aligned_x;
 
 	if ((width <= 0) ||
 	    (x + width > dlfb->info->var.xres) ||
-	    (y + height > dlfb->info->var.yres))
-		return -EINVAL;
+	    (y + height > dlfb->info->var.yres)) {
+		ret = -EINVAL;
+		goto unlock_ret;
+	}
 
-	if (!atomic_read(&dlfb->usb_active))
-		return 0;
+	if (!atomic_read(&dlfb->usb_active)) {
+		ret = 0;
+		goto unlock_ret;
+	}
 
 	urb = dlfb_get_urb(dlfb);
-	if (!urb)
-		return 0;
+	if (!urb) {
+		ret = 0;
+		goto unlock_ret;
+	}
 	cmd = urb->transfer_buffer;
 
 	for (i = y; i < y + height ; i++) {
@@ -641,7 +648,7 @@ static int dlfb_handle_damage(struct dlf
 			*cmd++ = 0xAF;
 		/* Send partial buffer remaining before exiting */
 		len = cmd - (char *) urb->transfer_buffer;
-		ret = dlfb_submit_urb(dlfb, urb, len);
+		dlfb_submit_urb(dlfb, urb, len);
 		bytes_sent += len;
 	} else
 		dlfb_urb_completion(urb);
@@ -655,7 +662,55 @@ error:
 		    >> 10)), /* Kcycles */
 		   &dlfb->cpu_kcycles_used);
 
-	return 0;
+	ret = 0;
+
+unlock_ret:
+	mutex_unlock(&dlfb->render_mutex);
+	return ret;
+}
+
+static void dlfb_init_damage(struct dlfb_data *dlfb)
+{
+	dlfb->damage_x = INT_MAX;
+	dlfb->damage_x2 = 0;
+	dlfb->damage_y = INT_MAX;
+	dlfb->damage_y2 = 0;
+}
+
+static void dlfb_damage_work(struct work_struct *w)
+{
+	struct dlfb_data *dlfb = container_of(w, struct dlfb_data, damage_work);
+	int x, x2, y, y2;
+
+	spin_lock_irq(&dlfb->damage_lock);
+	x = dlfb->damage_x;
+	x2 = dlfb->damage_x2;
+	y = dlfb->damage_y;
+	y2 = dlfb->damage_y2;
+	dlfb_init_damage(dlfb);
+	spin_unlock_irq(&dlfb->damage_lock);
+
+	if (x < x2 && y < y2)
+		dlfb_handle_damage(dlfb, x, y, x2 - x, y2 - y);
+}
+
+static void dlfb_offload_damage(struct dlfb_data *dlfb, int x, int y, int width, int height)
+{
+	unsigned long flags;
+	int x2 = x + width;
+	int y2 = y + height;
+
+	if (x >= x2 || y >= y2)
+		return;
+
+	spin_lock_irqsave(&dlfb->damage_lock, flags);
+	dlfb->damage_x = min(x, dlfb->damage_x);
+	dlfb->damage_x2 = max(x2, dlfb->damage_x2);
+	dlfb->damage_y = min(y, dlfb->damage_y);
+	dlfb->damage_y2 = max(y2, dlfb->damage_y2);
+	spin_unlock_irqrestore(&dlfb->damage_lock, flags);
+
+	schedule_work(&dlfb->damage_work);
 }
 
 /*
@@ -679,7 +734,7 @@ static ssize_t dlfb_ops_write(struct fb_
 				(u32)info->var.yres);
 
 		dlfb_handle_damage(dlfb, 0, start, info->var.xres,
-			lines, info->screen_base);
+			lines);
 	}
 
 	return result;
@@ -694,8 +749,8 @@ static void dlfb_ops_copyarea(struct fb_
 
 	sys_copyarea(info, area);
 
-	dlfb_handle_damage(dlfb, area->dx, area->dy,
-			area->width, area->height, info->screen_base);
+	dlfb_offload_damage(dlfb, area->dx, area->dy,
+			area->width, area->height);
 }
 
 static void dlfb_ops_imageblit(struct fb_info *info,
@@ -705,8 +760,8 @@ static void dlfb_ops_imageblit(struct fb
 
 	sys_imageblit(info, image);
 
-	dlfb_handle_damage(dlfb, image->dx, image->dy,
-			image->width, image->height, info->screen_base);
+	dlfb_offload_damage(dlfb, image->dx, image->dy,
+			image->width, image->height);
 }
 
 static void dlfb_ops_fillrect(struct fb_info *info,
@@ -716,8 +771,8 @@ static void dlfb_ops_fillrect(struct fb_
 
 	sys_fillrect(info, rect);
 
-	dlfb_handle_damage(dlfb, rect->dx, rect->dy, rect->width,
-			      rect->height, info->screen_base);
+	dlfb_offload_damage(dlfb, rect->dx, rect->dy, rect->width,
+			      rect->height);
 }
 
 /*
@@ -739,17 +794,19 @@ static void dlfb_dpy_deferred_io(struct
 	int bytes_identical = 0;
 	int bytes_rendered = 0;
 
+	mutex_lock(&dlfb->render_mutex);
+
 	if (!fb_defio)
-		return;
+		goto unlock_ret;
 
 	if (!atomic_read(&dlfb->usb_active))
-		return;
+		goto unlock_ret;
 
 	start_cycles = get_cycles();
 
 	urb = dlfb_get_urb(dlfb);
 	if (!urb)
-		return;
+		goto unlock_ret;
 
 	cmd = urb->transfer_buffer;
 
@@ -782,6 +839,8 @@ error:
 	atomic_add(((unsigned int) ((end_cycles - start_cycles)
 		    >> 10)), /* Kcycles */
 		   &dlfb->cpu_kcycles_used);
+unlock_ret:
+	mutex_unlock(&dlfb->render_mutex);
 }
 
 static int dlfb_get_edid(struct dlfb_data *dlfb, char *edid, int len)
@@ -859,8 +918,7 @@ static int dlfb_ops_ioctl(struct fb_info
 		if (area.y > info->var.yres)
 			area.y = info->var.yres;
 
-		dlfb_handle_damage(dlfb, area.x, area.y, area.w, area.h,
-			   info->screen_base);
+		dlfb_handle_damage(dlfb, area.x, area.y, area.w, area.h);
 	}
 
 	return 0;
@@ -942,6 +1000,10 @@ static void dlfb_ops_destroy(struct fb_i
 {
 	struct dlfb_data *dlfb = info->par;
 
+	cancel_work_sync(&dlfb->damage_work);
+
+	mutex_destroy(&dlfb->render_mutex);
+
 	if (info->cmap.len != 0)
 		fb_dealloc_cmap(&info->cmap);
 	if (info->monspecs.modedb)
@@ -1065,8 +1127,7 @@ static int dlfb_ops_set_par(struct fb_in
 			pix_framebuffer[i] = 0x37e6;
 	}
 
-	dlfb_handle_damage(dlfb, 0, 0, info->var.xres, info->var.yres,
-			   info->screen_base);
+	dlfb_handle_damage(dlfb, 0, 0, info->var.xres, info->var.yres);
 
 	return 0;
 }
@@ -1639,6 +1700,11 @@ static int dlfb_usb_probe(struct usb_int
 	dlfb->ops = dlfb_ops;
 	info->fbops = &dlfb->ops;
 
+	mutex_init(&dlfb->render_mutex);
+	dlfb_init_damage(dlfb);
+	spin_lock_init(&dlfb->damage_lock);
+	INIT_WORK(&dlfb->damage_work, dlfb_damage_work);
+
 	INIT_LIST_HEAD(&info->modelist);
 
 	if (!dlfb_alloc_urb_list(dlfb, WRITES_IN_FLIGHT, MAX_TRANSFER)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/virt/fsl_hypervisor.c linux-libre-5.1.21-gnu/drivers/virt/fsl_hypervisor.c
--- linux-libre-5.1-gnu/drivers/virt/fsl_hypervisor.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/virt/fsl_hypervisor.c	2019-07-28 02:28:39.000000000 -0400
@@ -215,6 +215,9 @@ static long ioctl_memcpy(struct fsl_hv_i
 	 * hypervisor.
 	 */
 	lb_offset = param.local_vaddr & (PAGE_SIZE - 1);
+	if (param.count == 0 ||
+	    param.count > U64_MAX - lb_offset - PAGE_SIZE + 1)
+		return -EINVAL;
 	num_pages = (param.count + lb_offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
 
 	/* Allocate the buffers we need */
@@ -331,8 +334,8 @@ static long ioctl_dtprop(struct fsl_hv_i
 	struct fsl_hv_ioctl_prop param;
 	char __user *upath, *upropname;
 	void __user *upropval;
-	char *path = NULL, *propname = NULL;
-	void *propval = NULL;
+	char *path, *propname;
+	void *propval;
 	int ret = 0;
 
 	/* Get the parameters from the user. */
@@ -344,32 +347,30 @@ static long ioctl_dtprop(struct fsl_hv_i
 	upropval = (void __user *)(uintptr_t)param.propval;
 
 	path = strndup_user(upath, FH_DTPROP_MAX_PATHLEN);
-	if (IS_ERR(path)) {
-		ret = PTR_ERR(path);
-		goto out;
-	}
+	if (IS_ERR(path))
+		return PTR_ERR(path);
 
 	propname = strndup_user(upropname, FH_DTPROP_MAX_PATHLEN);
 	if (IS_ERR(propname)) {
 		ret = PTR_ERR(propname);
-		goto out;
+		goto err_free_path;
 	}
 
 	if (param.proplen > FH_DTPROP_MAX_PROPLEN) {
 		ret = -EINVAL;
-		goto out;
+		goto err_free_propname;
 	}
 
 	propval = kmalloc(param.proplen, GFP_KERNEL);
 	if (!propval) {
 		ret = -ENOMEM;
-		goto out;
+		goto err_free_propname;
 	}
 
 	if (set) {
 		if (copy_from_user(propval, upropval, param.proplen)) {
 			ret = -EFAULT;
-			goto out;
+			goto err_free_propval;
 		}
 
 		param.ret = fh_partition_set_dtprop(param.handle,
@@ -388,7 +389,7 @@ static long ioctl_dtprop(struct fsl_hv_i
 			if (copy_to_user(upropval, propval, param.proplen) ||
 			    put_user(param.proplen, &p->proplen)) {
 				ret = -EFAULT;
-				goto out;
+				goto err_free_propval;
 			}
 		}
 	}
@@ -396,10 +397,12 @@ static long ioctl_dtprop(struct fsl_hv_i
 	if (put_user(param.ret, &p->ret))
 		ret = -EFAULT;
 
-out:
-	kfree(path);
+err_free_propval:
 	kfree(propval);
+err_free_propname:
 	kfree(propname);
+err_free_path:
+	kfree(path);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/virt/vboxguest/vboxguest_core.c linux-libre-5.1.21-gnu/drivers/virt/vboxguest/vboxguest_core.c
--- linux-libre-5.1-gnu/drivers/virt/vboxguest/vboxguest_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/virt/vboxguest/vboxguest_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -1298,6 +1298,20 @@ static int vbg_ioctl_hgcm_disconnect(str
 	return ret;
 }
 
+static bool vbg_param_valid(enum vmmdev_hgcm_function_parameter_type type)
+{
+	switch (type) {
+	case VMMDEV_HGCM_PARM_TYPE_32BIT:
+	case VMMDEV_HGCM_PARM_TYPE_64BIT:
+	case VMMDEV_HGCM_PARM_TYPE_LINADDR:
+	case VMMDEV_HGCM_PARM_TYPE_LINADDR_IN:
+	case VMMDEV_HGCM_PARM_TYPE_LINADDR_OUT:
+		return true;
+	default:
+		return false;
+	}
+}
+
 static int vbg_ioctl_hgcm_call(struct vbg_dev *gdev,
 			       struct vbg_session *session, bool f32bit,
 			       struct vbg_ioctl_hgcm_call *call)
@@ -1333,6 +1347,23 @@ static int vbg_ioctl_hgcm_call(struct vb
 	}
 	call->hdr.size_out = actual_size;
 
+	/* Validate parameter types */
+	if (f32bit) {
+		struct vmmdev_hgcm_function_parameter32 *parm =
+			VBG_IOCTL_HGCM_CALL_PARMS32(call);
+
+		for (i = 0; i < call->parm_count; i++)
+			if (!vbg_param_valid(parm[i].type))
+				return -EINVAL;
+	} else {
+		struct vmmdev_hgcm_function_parameter *parm =
+			VBG_IOCTL_HGCM_CALL_PARMS(call);
+
+		for (i = 0; i < call->parm_count; i++)
+			if (!vbg_param_valid(parm[i].type))
+				return -EINVAL;
+	}
+
 	/*
 	 * Validate the client id.
 	 */
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/virtio/virtio_ring.c linux-libre-5.1.21-gnu/drivers/virtio/virtio_ring.c
--- linux-libre-5.1-gnu/drivers/virtio/virtio_ring.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/virtio/virtio_ring.c	2019-07-28 02:28:39.000000000 -0400
@@ -1004,6 +1004,7 @@ static int virtqueue_add_indirect_packed
 
 	if (unlikely(vq->vq.num_free < 1)) {
 		pr_debug("Can't add buf len 1 - avail = 0\n");
+		kfree(desc);
 		END_USE(vq);
 		return -ENOSPC;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/w1/w1_io.c linux-libre-5.1.21-gnu/drivers/w1/w1_io.c
--- linux-libre-5.1-gnu/drivers/w1/w1_io.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/w1/w1_io.c	2019-07-28 02:28:39.000000000 -0400
@@ -432,8 +432,7 @@ int w1_reset_resume_command(struct w1_ma
 	if (w1_reset_bus(dev))
 		return -1;
 
-	/* This will make only the last matched slave perform a skip ROM. */
-	w1_write_8(dev, W1_RESUME_CMD);
+	w1_write_8(dev, dev->slave_count > 1 ? W1_RESUME_CMD : W1_SKIP_ROM);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(w1_reset_resume_command);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/watchdog/imx2_wdt.c linux-libre-5.1.21-gnu/drivers/watchdog/imx2_wdt.c
--- linux-libre-5.1-gnu/drivers/watchdog/imx2_wdt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/watchdog/imx2_wdt.c	2019-07-28 02:28:39.000000000 -0400
@@ -178,8 +178,10 @@ static void __imx2_wdt_set_timeout(struc
 static int imx2_wdt_set_timeout(struct watchdog_device *wdog,
 				unsigned int new_timeout)
 {
-	__imx2_wdt_set_timeout(wdog, new_timeout);
+	unsigned int actual;
 
+	actual = min(new_timeout, wdog->max_hw_heartbeat_ms * 1000);
+	__imx2_wdt_set_timeout(wdog, actual);
 	wdog->timeout = new_timeout;
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/watchdog/Kconfig linux-libre-5.1.21-gnu/drivers/watchdog/Kconfig
--- linux-libre-5.1-gnu/drivers/watchdog/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/watchdog/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -2028,6 +2028,7 @@ comment "Watchdog Pretimeout Governors"
 
 config WATCHDOG_PRETIMEOUT_GOV
 	bool "Enable watchdog pretimeout governors"
+	depends on WATCHDOG_CORE
 	help
 	  The option allows to select watchdog pretimeout governors.
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/xen/balloon.c linux-libre-5.1.21-gnu/drivers/xen/balloon.c
--- linux-libre-5.1-gnu/drivers/xen/balloon.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/xen/balloon.c	2019-07-28 02:28:39.000000000 -0400
@@ -538,8 +538,15 @@ static void balloon_process(struct work_
 				state = reserve_additional_memory();
 		}
 
-		if (credit < 0)
-			state = decrease_reservation(-credit, GFP_BALLOON);
+		if (credit < 0) {
+			long n_pages;
+
+			n_pages = min(-credit, si_mem_available());
+			state = decrease_reservation(n_pages, GFP_BALLOON);
+			if (state == BP_DONE && n_pages != -credit &&
+			    n_pages < totalreserve_pages)
+				state = BP_EAGAIN;
+		}
 
 		state = update_schedule(state);
 
@@ -578,6 +585,9 @@ static int add_ballooned_pages(int nr_pa
 		}
 	}
 
+	if (si_mem_available() < nr_pages)
+		return -ENOMEM;
+
 	st = decrease_reservation(nr_pages, GFP_USER);
 	if (st != BP_DONE)
 		return -ENOMEM;
@@ -710,7 +720,7 @@ static int __init balloon_init(void)
 	balloon_stats.schedule_delay = 1;
 	balloon_stats.max_schedule_delay = 32;
 	balloon_stats.retry_count = 1;
-	balloon_stats.max_retry_count = RETRY_UNLIMITED;
+	balloon_stats.max_retry_count = 4;
 
 #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
 	set_online_page_callback(&xen_online_page);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/xen/biomerge.c linux-libre-5.1.21-gnu/drivers/xen/biomerge.c
--- linux-libre-5.1-gnu/drivers/xen/biomerge.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/xen/biomerge.c	2019-07-28 02:28:39.000000000 -0400
@@ -4,12 +4,13 @@
 #include <xen/xen.h>
 #include <xen/page.h>
 
+/* check if @page can be merged with 'vec1' */
 bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
-			       const struct bio_vec *vec2)
+			       const struct page *page)
 {
 #if XEN_PAGE_SIZE == PAGE_SIZE
 	unsigned long bfn1 = pfn_to_bfn(page_to_pfn(vec1->bv_page));
-	unsigned long bfn2 = pfn_to_bfn(page_to_pfn(vec2->bv_page));
+	unsigned long bfn2 = pfn_to_bfn(page_to_pfn(page));
 
 	return bfn1 + PFN_DOWN(vec1->bv_offset + vec1->bv_len) == bfn2;
 #else
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/xen/events/events_base.c linux-libre-5.1.21-gnu/drivers/xen/events/events_base.c
--- linux-libre-5.1-gnu/drivers/xen/events/events_base.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/xen/events/events_base.c	2019-07-28 02:28:39.000000000 -0400
@@ -1293,7 +1293,7 @@ void rebind_evtchn_irq(int evtchn, int i
 }
 
 /* Rebind an evtchn so that it gets delivered to a specific cpu */
-int xen_rebind_evtchn_to_cpu(int evtchn, unsigned tcpu)
+static int xen_rebind_evtchn_to_cpu(int evtchn, unsigned int tcpu)
 {
 	struct evtchn_bind_vcpu bind_vcpu;
 	int masked;
@@ -1327,7 +1327,6 @@ int xen_rebind_evtchn_to_cpu(int evtchn,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(xen_rebind_evtchn_to_cpu);
 
 static int set_affinity_irq(struct irq_data *data, const struct cpumask *dest,
 			    bool force)
@@ -1341,6 +1340,15 @@ static int set_affinity_irq(struct irq_d
 	return ret;
 }
 
+/* To be called with desc->lock held. */
+int xen_set_affinity_evtchn(struct irq_desc *desc, unsigned int tcpu)
+{
+	struct irq_data *d = irq_desc_get_irq_data(desc);
+
+	return set_affinity_irq(d, cpumask_of(tcpu), false);
+}
+EXPORT_SYMBOL_GPL(xen_set_affinity_evtchn);
+
 static void enable_dynirq(struct irq_data *data)
 {
 	int evtchn = evtchn_from_irq(data->irq);
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/xen/evtchn.c linux-libre-5.1.21-gnu/drivers/xen/evtchn.c
--- linux-libre-5.1-gnu/drivers/xen/evtchn.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/xen/evtchn.c	2019-07-28 02:28:39.000000000 -0400
@@ -447,7 +447,7 @@ static void evtchn_bind_interdom_next_vc
 	this_cpu_write(bind_last_selected_cpu, selected_cpu);
 
 	/* unmask expects irqs to be disabled */
-	xen_rebind_evtchn_to_cpu(evtchn, selected_cpu);
+	xen_set_affinity_evtchn(desc, selected_cpu);
 	raw_spin_unlock_irqrestore(&desc->lock, flags);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/xen/pvcalls-front.c linux-libre-5.1.21-gnu/drivers/xen/pvcalls-front.c
--- linux-libre-5.1-gnu/drivers/xen/pvcalls-front.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/xen/pvcalls-front.c	2019-07-28 02:28:39.000000000 -0400
@@ -540,7 +540,6 @@ out:
 int pvcalls_front_sendmsg(struct socket *sock, struct msghdr *msg,
 			  size_t len)
 {
-	struct pvcalls_bedata *bedata;
 	struct sock_mapping *map;
 	int sent, tot_sent = 0;
 	int count = 0, flags;
@@ -552,7 +551,6 @@ int pvcalls_front_sendmsg(struct socket
 	map = pvcalls_enter_sock(sock);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
-	bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
 	mutex_lock(&map->active.out_mutex);
 	if ((flags & MSG_DONTWAIT) && !pvcalls_front_write_todo(map)) {
@@ -635,7 +633,6 @@ out:
 int pvcalls_front_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 		     int flags)
 {
-	struct pvcalls_bedata *bedata;
 	int ret;
 	struct sock_mapping *map;
 
@@ -645,7 +642,6 @@ int pvcalls_front_recvmsg(struct socket
 	map = pvcalls_enter_sock(sock);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
-	bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
 	mutex_lock(&map->active.in_mutex);
 	if (len > XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER))
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/xen/xenbus/xenbus_dev_frontend.c linux-libre-5.1.21-gnu/drivers/xen/xenbus/xenbus_dev_frontend.c
--- linux-libre-5.1-gnu/drivers/xen/xenbus/xenbus_dev_frontend.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/xen/xenbus/xenbus_dev_frontend.c	2019-07-28 02:28:39.000000000 -0400
@@ -62,6 +62,8 @@
 
 #include "xenbus.h"
 
+unsigned int xb_dev_generation_id;
+
 /*
  * An element of a list of outstanding transactions, for which we're
  * still waiting a reply.
@@ -69,6 +71,7 @@
 struct xenbus_transaction_holder {
 	struct list_head list;
 	struct xenbus_transaction handle;
+	unsigned int generation_id;
 };
 
 /*
@@ -441,6 +444,7 @@ static int xenbus_write_transaction(unsi
 			rc = -ENOMEM;
 			goto out;
 		}
+		trans->generation_id = xb_dev_generation_id;
 		list_add(&trans->list, &u->transactions);
 	} else if (msg->hdr.tx_id != 0 &&
 		   !xenbus_get_transaction(u, msg->hdr.tx_id))
@@ -449,6 +453,20 @@ static int xenbus_write_transaction(unsi
 		 !(msg->hdr.len == 2 &&
 		   (!strcmp(msg->body, "T") || !strcmp(msg->body, "F"))))
 		return xenbus_command_reply(u, XS_ERROR, "EINVAL");
+	else if (msg_type == XS_TRANSACTION_END) {
+		trans = xenbus_get_transaction(u, msg->hdr.tx_id);
+		if (trans && trans->generation_id != xb_dev_generation_id) {
+			list_del(&trans->list);
+			kfree(trans);
+			if (!strcmp(msg->body, "T"))
+				return xenbus_command_reply(u, XS_ERROR,
+							    "EAGAIN");
+			else
+				return xenbus_command_reply(u,
+							    XS_TRANSACTION_END,
+							    "OK");
+		}
+	}
 
 	rc = xenbus_dev_request_and_reply(&msg->hdr, u);
 	if (rc && trans) {
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/xen/xenbus/xenbus.h linux-libre-5.1.21-gnu/drivers/xen/xenbus/xenbus.h
--- linux-libre-5.1-gnu/drivers/xen/xenbus/xenbus.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/xen/xenbus/xenbus.h	2019-07-28 02:28:39.000000000 -0400
@@ -83,6 +83,7 @@ struct xb_req_data {
 	int num_vecs;
 	int err;
 	enum xb_req_state state;
+	bool user_req;
 	void (*cb)(struct xb_req_data *);
 	void *par;
 };
@@ -133,4 +134,6 @@ void xenbus_ring_ops_init(void);
 int xenbus_dev_request_and_reply(struct xsd_sockmsg *msg, void *par);
 void xenbus_dev_queue_reply(struct xb_req_data *req);
 
+extern unsigned int xb_dev_generation_id;
+
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/drivers/xen/xenbus/xenbus_xs.c linux-libre-5.1.21-gnu/drivers/xen/xenbus/xenbus_xs.c
--- linux-libre-5.1-gnu/drivers/xen/xenbus/xenbus_xs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/drivers/xen/xenbus/xenbus_xs.c	2019-07-28 02:28:39.000000000 -0400
@@ -105,6 +105,7 @@ static void xs_suspend_enter(void)
 
 static void xs_suspend_exit(void)
 {
+	xb_dev_generation_id++;
 	spin_lock(&xs_state_lock);
 	xs_suspend_active--;
 	spin_unlock(&xs_state_lock);
@@ -125,7 +126,7 @@ static uint32_t xs_request_enter(struct
 		spin_lock(&xs_state_lock);
 	}
 
-	if (req->type == XS_TRANSACTION_START)
+	if (req->type == XS_TRANSACTION_START && !req->user_req)
 		xs_state_users++;
 	xs_state_users++;
 	rq_id = xs_request_id++;
@@ -140,7 +141,7 @@ void xs_request_exit(struct xb_req_data
 	spin_lock(&xs_state_lock);
 	xs_state_users--;
 	if ((req->type == XS_TRANSACTION_START && req->msg.type == XS_ERROR) ||
-	    (req->type == XS_TRANSACTION_END &&
+	    (req->type == XS_TRANSACTION_END && !req->user_req &&
 	     !WARN_ON_ONCE(req->msg.type == XS_ERROR &&
 			   !strcmp(req->body, "ENOENT"))))
 		xs_state_users--;
@@ -286,6 +287,7 @@ int xenbus_dev_request_and_reply(struct
 	req->num_vecs = 1;
 	req->cb = xenbus_dev_queue_reply;
 	req->par = par;
+	req->user_req = true;
 
 	xs_send(req, msg);
 
@@ -313,6 +315,7 @@ static void *xs_talkv(struct xenbus_tran
 	req->vec = iovec;
 	req->num_vecs = num_vecs;
 	req->cb = xs_wake_up;
+	req->user_req = false;
 
 	msg.req_id = 0;
 	msg.tx_id = t.id;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/afs/callback.c linux-libre-5.1.21-gnu/fs/afs/callback.c
--- linux-libre-5.1-gnu/fs/afs/callback.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/afs/callback.c	2019-07-28 02:28:39.000000000 -0400
@@ -278,9 +278,9 @@ static void afs_break_one_callback(struc
 			struct afs_super_info *as = AFS_FS_S(cbi->sb);
 			struct afs_volume *volume = as->volume;
 
-			write_lock(&volume->cb_break_lock);
+			write_lock(&volume->cb_v_break_lock);
 			volume->cb_v_break++;
-			write_unlock(&volume->cb_break_lock);
+			write_unlock(&volume->cb_v_break_lock);
 		} else {
 			data.volume = NULL;
 			data.fid = *fid;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/afs/internal.h linux-libre-5.1.21-gnu/fs/afs/internal.h
--- linux-libre-5.1-gnu/fs/afs/internal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/afs/internal.h	2019-07-28 02:28:39.000000000 -0400
@@ -582,7 +582,7 @@ struct afs_volume {
 	unsigned int		servers_seq;	/* Incremented each time ->servers changes */
 
 	unsigned		cb_v_break;	/* Break-everything counter. */
-	rwlock_t		cb_break_lock;
+	rwlock_t		cb_v_break_lock;
 
 	afs_voltype_t		type;		/* type of volume */
 	short			error;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/afs/volume.c linux-libre-5.1.21-gnu/fs/afs/volume.c
--- linux-libre-5.1-gnu/fs/afs/volume.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/afs/volume.c	2019-07-28 02:28:39.000000000 -0400
@@ -47,6 +47,7 @@ static struct afs_volume *afs_alloc_volu
 	atomic_set(&volume->usage, 1);
 	INIT_LIST_HEAD(&volume->proc_link);
 	rwlock_init(&volume->servers_lock);
+	rwlock_init(&volume->cb_v_break_lock);
 	memcpy(volume->name, vldb->name, vldb->name_len + 1);
 
 	slist = afs_alloc_server_list(params->cell, params->key, vldb, type_mask);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/afs/xattr.c linux-libre-5.1.21-gnu/fs/afs/xattr.c
--- linux-libre-5.1-gnu/fs/afs/xattr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/afs/xattr.c	2019-07-28 02:28:39.000000000 -0400
@@ -69,11 +69,20 @@ static int afs_xattr_get_fid(const struc
 			     void *buffer, size_t size)
 {
 	struct afs_vnode *vnode = AFS_FS_I(inode);
-	char text[8 + 1 + 8 + 1 + 8 + 1];
+	char text[16 + 1 + 24 + 1 + 8 + 1];
 	size_t len;
 
-	len = sprintf(text, "%llx:%llx:%x",
-		      vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique);
+	/* The volume ID is 64-bit, the vnode ID is 96-bit and the
+	 * uniquifier is 32-bit.
+	 */
+	len = sprintf(text, "%llx:", vnode->fid.vid);
+	if (vnode->fid.vnode_hi)
+		len += sprintf(text + len, "%x%016llx",
+			       vnode->fid.vnode_hi, vnode->fid.vnode);
+	else
+		len += sprintf(text + len, "%llx", vnode->fid.vnode);
+	len += sprintf(text + len, ":%x", vnode->fid.unique);
+
 	if (size == 0)
 		return len;
 	if (len > size)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/aio.c linux-libre-5.1.21-gnu/fs/aio.c
--- linux-libre-5.1-gnu/fs/aio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/aio.c	2019-07-28 02:28:39.000000000 -0400
@@ -2095,6 +2095,7 @@ SYSCALL_DEFINE6(io_pgetevents,
 	struct __aio_sigset	ksig = { NULL, };
 	sigset_t		ksigmask, sigsaved;
 	struct timespec64	ts;
+	bool interrupted;
 	int ret;
 
 	if (timeout && unlikely(get_timespec64(&ts, timeout)))
@@ -2108,8 +2109,10 @@ SYSCALL_DEFINE6(io_pgetevents,
 		return ret;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
-	restore_user_sigmask(ksig.sigmask, &sigsaved);
-	if (signal_pending(current) && !ret)
+
+	interrupted = signal_pending(current);
+	restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+	if (interrupted && !ret)
 		ret = -ERESTARTNOHAND;
 
 	return ret;
@@ -2128,6 +2131,7 @@ SYSCALL_DEFINE6(io_pgetevents_time32,
 	struct __aio_sigset	ksig = { NULL, };
 	sigset_t		ksigmask, sigsaved;
 	struct timespec64	ts;
+	bool interrupted;
 	int ret;
 
 	if (timeout && unlikely(get_old_timespec32(&ts, timeout)))
@@ -2142,8 +2146,10 @@ SYSCALL_DEFINE6(io_pgetevents_time32,
 		return ret;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &ts : NULL);
-	restore_user_sigmask(ksig.sigmask, &sigsaved);
-	if (signal_pending(current) && !ret)
+
+	interrupted = signal_pending(current);
+	restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+	if (interrupted && !ret)
 		ret = -ERESTARTNOHAND;
 
 	return ret;
@@ -2193,6 +2199,7 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
 	struct __compat_aio_sigset ksig = { NULL, };
 	sigset_t ksigmask, sigsaved;
 	struct timespec64 t;
+	bool interrupted;
 	int ret;
 
 	if (timeout && get_old_timespec32(&t, timeout))
@@ -2206,8 +2213,10 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
 		return ret;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
-	restore_user_sigmask(ksig.sigmask, &sigsaved);
-	if (signal_pending(current) && !ret)
+
+	interrupted = signal_pending(current);
+	restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+	if (interrupted && !ret)
 		ret = -ERESTARTNOHAND;
 
 	return ret;
@@ -2226,6 +2235,7 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_tim
 	struct __compat_aio_sigset ksig = { NULL, };
 	sigset_t ksigmask, sigsaved;
 	struct timespec64 t;
+	bool interrupted;
 	int ret;
 
 	if (timeout && get_timespec64(&t, timeout))
@@ -2239,8 +2249,10 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_tim
 		return ret;
 
 	ret = do_io_getevents(ctx_id, min_nr, nr, events, timeout ? &t : NULL);
-	restore_user_sigmask(ksig.sigmask, &sigsaved);
-	if (signal_pending(current) && !ret)
+
+	interrupted = signal_pending(current);
+	restore_user_sigmask(ksig.sigmask, &sigsaved, interrupted);
+	if (interrupted && !ret)
 		ret = -ERESTARTNOHAND;
 
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/binfmt_flat.c linux-libre-5.1.21-gnu/fs/binfmt_flat.c
--- linux-libre-5.1-gnu/fs/binfmt_flat.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/binfmt_flat.c	2019-07-28 02:28:39.000000000 -0400
@@ -856,9 +856,14 @@ err:
 
 static int load_flat_shared_library(int id, struct lib_info *libs)
 {
+	/*
+	 * This is a fake bprm struct; only the members "buf", "file" and
+	 * "filename" are actually used.
+	 */
 	struct linux_binprm bprm;
 	int res;
 	char buf[16];
+	loff_t pos = 0;
 
 	memset(&bprm, 0, sizeof(bprm));
 
@@ -872,25 +877,11 @@ static int load_flat_shared_library(int
 	if (IS_ERR(bprm.file))
 		return res;
 
-	bprm.cred = prepare_exec_creds();
-	res = -ENOMEM;
-	if (!bprm.cred)
-		goto out;
-
-	/* We don't really care about recalculating credentials at this point
-	 * as we're past the point of no return and are dealing with shared
-	 * libraries.
-	 */
-	bprm.called_set_creds = 1;
-
-	res = prepare_binprm(&bprm);
+	res = kernel_read(bprm.file, bprm.buf, BINPRM_BUF_SIZE, &pos);
 
-	if (!res)
+	if (res >= 0)
 		res = load_flat_file(&bprm, libs, id, NULL);
 
-	abort_creds(bprm.cred);
-
-out:
 	allow_write_access(bprm.file);
 	fput(bprm.file);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/backref.c linux-libre-5.1.21-gnu/fs/btrfs/backref.c
--- linux-libre-5.1-gnu/fs/btrfs/backref.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/backref.c	2019-07-28 02:28:39.000000000 -0400
@@ -1460,8 +1460,8 @@ int btrfs_find_all_roots(struct btrfs_tr
  * callers (such as fiemap) which want to know whether the extent is
  * shared but do not need a ref count.
  *
- * This attempts to allocate a transaction in order to account for
- * delayed refs, but continues on even when the alloc fails.
+ * This attempts to attach to the running transaction in order to account for
+ * delayed refs, but continues on even when no running transaction exists.
  *
  * Return: 0 if extent is not shared, 1 if it is shared, < 0 on error.
  */
@@ -1484,13 +1484,16 @@ int btrfs_check_shared(struct btrfs_root
 	tmp = ulist_alloc(GFP_NOFS);
 	roots = ulist_alloc(GFP_NOFS);
 	if (!tmp || !roots) {
-		ulist_free(tmp);
-		ulist_free(roots);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto out;
 	}
 
-	trans = btrfs_join_transaction(root);
+	trans = btrfs_attach_transaction(root);
 	if (IS_ERR(trans)) {
+		if (PTR_ERR(trans) != -ENOENT && PTR_ERR(trans) != -EROFS) {
+			ret = PTR_ERR(trans);
+			goto out;
+		}
 		trans = NULL;
 		down_read(&fs_info->commit_root_sem);
 	} else {
@@ -1523,6 +1526,7 @@ int btrfs_check_shared(struct btrfs_root
 	} else {
 		up_read(&fs_info->commit_root_sem);
 	}
+out:
 	ulist_free(tmp);
 	ulist_free(roots);
 	return ret;
@@ -1912,13 +1916,19 @@ int iterate_extent_inodes(struct btrfs_f
 			extent_item_objectid);
 
 	if (!search_commit_root) {
-		trans = btrfs_join_transaction(fs_info->extent_root);
-		if (IS_ERR(trans))
-			return PTR_ERR(trans);
+		trans = btrfs_attach_transaction(fs_info->extent_root);
+		if (IS_ERR(trans)) {
+			if (PTR_ERR(trans) != -ENOENT &&
+			    PTR_ERR(trans) != -EROFS)
+				return PTR_ERR(trans);
+			trans = NULL;
+		}
+	}
+
+	if (trans)
 		btrfs_get_tree_mod_seq(fs_info, &tree_mod_seq_elem);
-	} else {
+	else
 		down_read(&fs_info->commit_root_sem);
-	}
 
 	ret = btrfs_find_all_leafs(trans, fs_info, extent_item_objectid,
 				   tree_mod_seq_elem.seq, &refs,
@@ -1951,7 +1961,7 @@ int iterate_extent_inodes(struct btrfs_f
 
 	free_leaf_list(refs);
 out:
-	if (!search_commit_root) {
+	if (trans) {
 		btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);
 		btrfs_end_transaction(trans);
 	} else {
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/compression.c linux-libre-5.1.21-gnu/fs/btrfs/compression.c
--- linux-libre-5.1-gnu/fs/btrfs/compression.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/compression.c	2019-07-28 02:28:39.000000000 -0400
@@ -1009,6 +1009,7 @@ int btrfs_compress_pages(unsigned int ty
 	struct list_head *workspace;
 	int ret;
 
+	level = btrfs_compress_op[type]->set_level(level);
 	workspace = get_workspace(type, level);
 	ret = btrfs_compress_op[type]->compress_pages(workspace, mapping,
 						      start, pages,
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/ctree.c linux-libre-5.1.21-gnu/fs/btrfs/ctree.c
--- linux-libre-5.1-gnu/fs/btrfs/ctree.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/ctree.c	2019-07-28 02:28:39.000000000 -0400
@@ -2416,6 +2416,16 @@ read_block_for_search(struct btrfs_root
 	if (tmp) {
 		/* first we do an atomic uptodate check */
 		if (btrfs_buffer_uptodate(tmp, gen, 1) > 0) {
+			/*
+			 * Do extra check for first_key, eb can be stale due to
+			 * being cached, read from scrub, or have multiple
+			 * parents (shared tree blocks).
+			 */
+			if (btrfs_verify_level_key(fs_info, tmp,
+					parent_level - 1, &first_key, gen)) {
+				free_extent_buffer(tmp);
+				return -EUCLEAN;
+			}
 			*eb_ret = tmp;
 			return 0;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/ctree.h linux-libre-5.1.21-gnu/fs/btrfs/ctree.h
--- linux-libre-5.1-gnu/fs/btrfs/ctree.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/ctree.h	2019-07-28 02:28:39.000000000 -0400
@@ -1348,6 +1348,12 @@ struct btrfs_root {
 	 * manipulation with the read-only status via SUBVOL_SETFLAGS
 	 */
 	int send_in_progress;
+	/*
+	 * Number of currently running deduplication operations that have a
+	 * destination inode belonging to this root. Protected by the lock
+	 * root_item_lock.
+	 */
+	int dedupe_in_progress;
 	struct btrfs_subvolume_writers *subv_writers;
 	atomic_t will_be_snapshotted;
 	atomic_t snapshot_force_cow;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/dev-replace.c linux-libre-5.1.21-gnu/fs/btrfs/dev-replace.c
--- linux-libre-5.1-gnu/fs/btrfs/dev-replace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/dev-replace.c	2019-07-28 02:28:39.000000000 -0400
@@ -603,17 +603,25 @@ static int btrfs_dev_replace_finishing(s
 	}
 	btrfs_wait_ordered_roots(fs_info, U64_MAX, 0, (u64)-1);
 
-	trans = btrfs_start_transaction(root, 0);
-	if (IS_ERR(trans)) {
-		mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
-		return PTR_ERR(trans);
+	while (1) {
+		trans = btrfs_start_transaction(root, 0);
+		if (IS_ERR(trans)) {
+			mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
+			return PTR_ERR(trans);
+		}
+		ret = btrfs_commit_transaction(trans);
+		WARN_ON(ret);
+		/* keep away write_all_supers() during the finishing procedure */
+		mutex_lock(&fs_info->fs_devices->device_list_mutex);
+		mutex_lock(&fs_info->chunk_mutex);
+		if (src_device->has_pending_chunks) {
+			mutex_unlock(&root->fs_info->chunk_mutex);
+			mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+		} else {
+			break;
+		}
 	}
-	ret = btrfs_commit_transaction(trans);
-	WARN_ON(ret);
 
-	/* keep away write_all_supers() during the finishing procedure */
-	mutex_lock(&fs_info->fs_devices->device_list_mutex);
-	mutex_lock(&fs_info->chunk_mutex);
 	down_write(&dev_replace->rwsem);
 	dev_replace->replace_state =
 		scrub_ret ? BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/disk-io.c linux-libre-5.1.21-gnu/fs/btrfs/disk-io.c
--- linux-libre-5.1-gnu/fs/btrfs/disk-io.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/disk-io.c	2019-07-28 02:28:39.000000000 -0400
@@ -414,9 +414,9 @@ static int btrfs_check_super_csum(struct
 	return ret;
 }
 
-static int verify_level_key(struct btrfs_fs_info *fs_info,
-			    struct extent_buffer *eb, int level,
-			    struct btrfs_key *first_key, u64 parent_transid)
+int btrfs_verify_level_key(struct btrfs_fs_info *fs_info,
+			   struct extent_buffer *eb, int level,
+			   struct btrfs_key *first_key, u64 parent_transid)
 {
 	int found_level;
 	struct btrfs_key found_key;
@@ -493,8 +493,8 @@ static int btree_read_extent_buffer_page
 			if (verify_parent_transid(io_tree, eb,
 						   parent_transid, 0))
 				ret = -EIO;
-			else if (verify_level_key(fs_info, eb, level,
-						  first_key, parent_transid))
+			else if (btrfs_verify_level_key(fs_info, eb, level,
+						first_key, parent_transid))
 				ret = -EUCLEAN;
 			else
 				break;
@@ -1018,13 +1018,18 @@ void readahead_tree_block(struct btrfs_f
 {
 	struct extent_buffer *buf = NULL;
 	struct inode *btree_inode = fs_info->btree_inode;
+	int ret;
 
 	buf = btrfs_find_create_tree_block(fs_info, bytenr);
 	if (IS_ERR(buf))
 		return;
-	read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
-				 buf, WAIT_NONE, 0);
-	free_extent_buffer(buf);
+
+	ret = read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree, buf,
+			WAIT_NONE, 0);
+	if (ret < 0)
+		free_extent_buffer_stale(buf);
+	else
+		free_extent_buffer(buf);
 }
 
 int reada_tree_block_flagged(struct btrfs_fs_info *fs_info, u64 bytenr,
@@ -1044,12 +1049,12 @@ int reada_tree_block_flagged(struct btrf
 	ret = read_extent_buffer_pages(io_tree, buf, WAIT_PAGE_LOCK,
 				       mirror_num);
 	if (ret) {
-		free_extent_buffer(buf);
+		free_extent_buffer_stale(buf);
 		return ret;
 	}
 
 	if (test_bit(EXTENT_BUFFER_CORRUPT, &buf->bflags)) {
-		free_extent_buffer(buf);
+		free_extent_buffer_stale(buf);
 		return -EIO;
 	} else if (extent_buffer_uptodate(buf)) {
 		*eb = buf;
@@ -1103,7 +1108,7 @@ struct extent_buffer *read_tree_block(st
 	ret = btree_read_extent_buffer_pages(fs_info, buf, parent_transid,
 					     level, first_key);
 	if (ret) {
-		free_extent_buffer(buf);
+		free_extent_buffer_stale(buf);
 		return ERR_PTR(ret);
 	}
 	return buf;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/disk-io.h linux-libre-5.1.21-gnu/fs/btrfs/disk-io.h
--- linux-libre-5.1-gnu/fs/btrfs/disk-io.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/disk-io.h	2019-07-28 02:28:39.000000000 -0400
@@ -39,6 +39,9 @@ static inline u64 btrfs_sb_offset(int mi
 struct btrfs_device;
 struct btrfs_fs_devices;
 
+int btrfs_verify_level_key(struct btrfs_fs_info *fs_info,
+			   struct extent_buffer *eb, int level,
+			   struct btrfs_key *first_key, u64 parent_transid);
 struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
 				      u64 parent_transid, int level,
 				      struct btrfs_key *first_key);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/extent-tree.c linux-libre-5.1.21-gnu/fs/btrfs/extent-tree.c
--- linux-libre-5.1-gnu/fs/btrfs/extent-tree.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/extent-tree.c	2019-07-28 02:28:39.000000000 -0400
@@ -3981,8 +3981,7 @@ static int create_space_info(struct btrf
 				    info->space_info_kobj, "%s",
 				    alloc_name(space_info->flags));
 	if (ret) {
-		percpu_counter_destroy(&space_info->total_bytes_pinned);
-		kfree(space_info);
+		kobject_put(&space_info->kobj);
 		return ret;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/file.c linux-libre-5.1.21-gnu/fs/btrfs/file.c
--- linux-libre-5.1-gnu/fs/btrfs/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -2059,6 +2059,18 @@ int btrfs_sync_file(struct file *file, l
 	u64 len;
 
 	/*
+	 * If the inode needs a full sync, make sure we use a full range to
+	 * avoid log tree corruption, due to hole detection racing with ordered
+	 * extent completion for adjacent ranges, and assertion failures during
+	 * hole detection.
+	 */
+	if (test_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
+		     &BTRFS_I(inode)->runtime_flags)) {
+		start = 0;
+		end = LLONG_MAX;
+	}
+
+	/*
 	 * The range length can be represented by u64, we have to do the typecasts
 	 * to avoid signed overflow if it's [0, LLONG_MAX] eg. from fsync()
 	 */
@@ -2546,10 +2558,8 @@ static int btrfs_punch_hole(struct inode
 
 	ret = btrfs_punch_hole_lock_range(inode, lockstart, lockend,
 					  &cached_state);
-	if (ret) {
-		inode_unlock(inode);
+	if (ret)
 		goto out_only_mutex;
-	}
 
 	path = btrfs_alloc_path();
 	if (!path) {
@@ -2703,6 +2713,11 @@ out_only_mutex:
 		 * for detecting, at fsync time, if the inode isn't yet in the
 		 * log tree or it's there but not up to date.
 		 */
+		struct timespec64 now = current_time(inode);
+
+		inode_inc_iversion(inode);
+		inode->i_mtime = now;
+		inode->i_ctime = now;
 		trans = btrfs_start_transaction(root, 1);
 		if (IS_ERR(trans)) {
 			err = PTR_ERR(trans);
@@ -3132,6 +3147,7 @@ static long btrfs_fallocate(struct file
 			ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
 					cur_offset, last_byte - cur_offset);
 			if (ret < 0) {
+				cur_offset = last_byte;
 				free_extent_map(em);
 				break;
 			}
@@ -3181,7 +3197,7 @@ out:
 	/* Let go of our reservation. */
 	if (ret != 0 && !(mode & FALLOC_FL_ZERO_RANGE))
 		btrfs_free_reserved_data_space(inode, data_reserved,
-				alloc_start, alloc_end - cur_offset);
+				cur_offset, alloc_end - cur_offset);
 	extent_changeset_free(data_reserved);
 	return ret;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/inode.c linux-libre-5.1.21-gnu/fs/btrfs/inode.c
--- linux-libre-5.1-gnu/fs/btrfs/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -6396,8 +6396,18 @@ int btrfs_add_link(struct btrfs_trans_ha
 	btrfs_i_size_write(parent_inode, parent_inode->vfs_inode.i_size +
 			   name_len * 2);
 	inode_inc_iversion(&parent_inode->vfs_inode);
-	parent_inode->vfs_inode.i_mtime = parent_inode->vfs_inode.i_ctime =
-		current_time(&parent_inode->vfs_inode);
+	/*
+	 * If we are replaying a log tree, we do not want to update the mtime
+	 * and ctime of the parent directory with the current time, since the
+	 * log replay procedure is responsible for setting them to their correct
+	 * values (the ones it had when the fsync was done).
+	 */
+	if (!test_bit(BTRFS_FS_LOG_RECOVERING, &root->fs_info->flags)) {
+		struct timespec64 now = current_time(&parent_inode->vfs_inode);
+
+		parent_inode->vfs_inode.i_mtime = now;
+		parent_inode->vfs_inode.i_ctime = now;
+	}
 	ret = btrfs_update_inode(trans, root, &parent_inode->vfs_inode);
 	if (ret)
 		btrfs_abort_transaction(trans, ret);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/ioctl.c linux-libre-5.1.21-gnu/fs/btrfs/ioctl.c
--- linux-libre-5.1-gnu/fs/btrfs/ioctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/ioctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -3260,6 +3260,19 @@ static int btrfs_extent_same(struct inod
 {
 	int ret;
 	u64 i, tail_len, chunk_count;
+	struct btrfs_root *root_dst = BTRFS_I(dst)->root;
+
+	spin_lock(&root_dst->root_item_lock);
+	if (root_dst->send_in_progress) {
+		btrfs_warn_rl(root_dst->fs_info,
+"cannot deduplicate to root %llu while send operations are using it (%d in progress)",
+			      root_dst->root_key.objectid,
+			      root_dst->send_in_progress);
+		spin_unlock(&root_dst->root_item_lock);
+		return -EAGAIN;
+	}
+	root_dst->dedupe_in_progress++;
+	spin_unlock(&root_dst->root_item_lock);
 
 	tail_len = olen % BTRFS_MAX_DEDUPE_LEN;
 	chunk_count = div_u64(olen, BTRFS_MAX_DEDUPE_LEN);
@@ -3268,7 +3281,7 @@ static int btrfs_extent_same(struct inod
 		ret = btrfs_extent_same_range(src, loff, BTRFS_MAX_DEDUPE_LEN,
 					      dst, dst_loff);
 		if (ret)
-			return ret;
+			goto out;
 
 		loff += BTRFS_MAX_DEDUPE_LEN;
 		dst_loff += BTRFS_MAX_DEDUPE_LEN;
@@ -3277,6 +3290,10 @@ static int btrfs_extent_same(struct inod
 	if (tail_len > 0)
 		ret = btrfs_extent_same_range(src, loff, tail_len, dst,
 					      dst_loff);
+out:
+	spin_lock(&root_dst->root_item_lock);
+	root_dst->dedupe_in_progress--;
+	spin_unlock(&root_dst->root_item_lock);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/qgroup.c linux-libre-5.1.21-gnu/fs/btrfs/qgroup.c
--- linux-libre-5.1-gnu/fs/btrfs/qgroup.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/qgroup.c	2019-07-28 02:28:39.000000000 -0400
@@ -3831,7 +3831,13 @@ int btrfs_qgroup_add_swapped_blocks(stru
 							    subvol_slot);
 	block->last_snapshot = last_snapshot;
 	block->level = level;
-	if (bg->flags & BTRFS_BLOCK_GROUP_DATA)
+
+	/*
+	 * If we have bg == NULL, we're called from btrfs_recover_relocation(),
+	 * no one else can modify tree blocks thus we qgroup will not change
+	 * no matter the value of trace_leaf.
+	 */
+	if (bg && bg->flags & BTRFS_BLOCK_GROUP_DATA)
 		block->trace_leaf = true;
 	else
 		block->trace_leaf = false;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/reada.c linux-libre-5.1.21-gnu/fs/btrfs/reada.c
--- linux-libre-5.1-gnu/fs/btrfs/reada.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/reada.c	2019-07-28 02:28:39.000000000 -0400
@@ -747,6 +747,7 @@ static void __reada_start_machine(struct
 	u64 total = 0;
 	int i;
 
+again:
 	do {
 		enqueued = 0;
 		mutex_lock(&fs_devices->device_list_mutex);
@@ -758,6 +759,10 @@ static void __reada_start_machine(struct
 		mutex_unlock(&fs_devices->device_list_mutex);
 		total += enqueued;
 	} while (enqueued && total < 10000);
+	if (fs_devices->seed) {
+		fs_devices = fs_devices->seed;
+		goto again;
+	}
 
 	if (enqueued == 0)
 		return;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/relocation.c linux-libre-5.1.21-gnu/fs/btrfs/relocation.c
--- linux-libre-5.1-gnu/fs/btrfs/relocation.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/relocation.c	2019-07-28 02:28:39.000000000 -0400
@@ -2161,22 +2161,30 @@ static int clean_dirty_subvols(struct re
 	struct btrfs_root *root;
 	struct btrfs_root *next;
 	int ret = 0;
+	int ret2;
 
 	list_for_each_entry_safe(root, next, &rc->dirty_subvol_roots,
 				 reloc_dirty_list) {
-		struct btrfs_root *reloc_root = root->reloc_root;
+		if (root->root_key.objectid != BTRFS_TREE_RELOC_OBJECTID) {
+			/* Merged subvolume, cleanup its reloc root */
+			struct btrfs_root *reloc_root = root->reloc_root;
 
-		clear_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state);
-		list_del_init(&root->reloc_dirty_list);
-		root->reloc_root = NULL;
-		if (reloc_root) {
-			int ret2;
+			clear_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state);
+			list_del_init(&root->reloc_dirty_list);
+			root->reloc_root = NULL;
+			if (reloc_root) {
 
-			ret2 = btrfs_drop_snapshot(reloc_root, NULL, 0, 1);
+				ret2 = btrfs_drop_snapshot(reloc_root, NULL, 0, 1);
+				if (ret2 < 0 && !ret)
+					ret = ret2;
+			}
+			btrfs_put_fs_root(root);
+		} else {
+			/* Orphan reloc tree, just clean it up */
+			ret2 = btrfs_drop_snapshot(root, NULL, 0, 1);
 			if (ret2 < 0 && !ret)
 				ret = ret2;
 		}
-		btrfs_put_fs_root(root);
 	}
 	return ret;
 }
@@ -2464,6 +2472,9 @@ again:
 			}
 		} else {
 			list_del_init(&reloc_root->root_list);
+			/* Don't forget to queue this reloc root for cleanup */
+			list_add_tail(&reloc_root->reloc_dirty_list,
+				      &rc->dirty_subvol_roots);
 		}
 	}
 
@@ -4330,27 +4341,36 @@ int btrfs_relocate_block_group(struct bt
 		mutex_lock(&fs_info->cleaner_mutex);
 		ret = relocate_block_group(rc);
 		mutex_unlock(&fs_info->cleaner_mutex);
-		if (ret < 0) {
+		if (ret < 0)
 			err = ret;
-			goto out;
-		}
-
-		if (rc->extents_found == 0)
-			break;
-
-		btrfs_info(fs_info, "found %llu extents", rc->extents_found);
 
+		/*
+		 * We may have gotten ENOSPC after we already dirtied some
+		 * extents.  If writeout happens while we're relocating a
+		 * different block group we could end up hitting the
+		 * BUG_ON(rc->stage == UPDATE_DATA_PTRS) in
+		 * btrfs_reloc_cow_block.  Make sure we write everything out
+		 * properly so we don't trip over this problem, and then break
+		 * out of the loop if we hit an error.
+		 */
 		if (rc->stage == MOVE_DATA_EXTENTS && rc->found_file_extent) {
 			ret = btrfs_wait_ordered_range(rc->data_inode, 0,
 						       (u64)-1);
-			if (ret) {
+			if (ret)
 				err = ret;
-				goto out;
-			}
 			invalidate_mapping_pages(rc->data_inode->i_mapping,
 						 0, -1);
 			rc->stage = UPDATE_DATA_PTRS;
 		}
+
+		if (err < 0)
+			goto out;
+
+		if (rc->extents_found == 0)
+			break;
+
+		btrfs_info(fs_info, "found %llu extents", rc->extents_found);
+
 	}
 
 	WARN_ON(rc->block_group->pinned > 0);
@@ -4667,14 +4687,12 @@ int btrfs_reloc_cow_block(struct btrfs_t
 void btrfs_reloc_pre_snapshot(struct btrfs_pending_snapshot *pending,
 			      u64 *bytes_to_reserve)
 {
-	struct btrfs_root *root;
-	struct reloc_control *rc;
+	struct btrfs_root *root = pending->root;
+	struct reloc_control *rc = root->fs_info->reloc_ctl;
 
-	root = pending->root;
-	if (!root->reloc_root)
+	if (!root->reloc_root || !rc)
 		return;
 
-	rc = root->fs_info->reloc_ctl;
 	if (!rc->merge_reloc_tree)
 		return;
 
@@ -4703,10 +4721,10 @@ int btrfs_reloc_post_snapshot(struct btr
 	struct btrfs_root *root = pending->root;
 	struct btrfs_root *reloc_root;
 	struct btrfs_root *new_root;
-	struct reloc_control *rc;
+	struct reloc_control *rc = root->fs_info->reloc_ctl;
 	int ret;
 
-	if (!root->reloc_root)
+	if (!root->reloc_root || !rc)
 		return 0;
 
 	rc = root->fs_info->reloc_ctl;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/root-tree.c linux-libre-5.1.21-gnu/fs/btrfs/root-tree.c
--- linux-libre-5.1-gnu/fs/btrfs/root-tree.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/root-tree.c	2019-07-28 02:28:39.000000000 -0400
@@ -132,16 +132,17 @@ int btrfs_update_root(struct btrfs_trans
 		return -ENOMEM;
 
 	ret = btrfs_search_slot(trans, root, key, path, 0, 1);
-	if (ret < 0) {
-		btrfs_abort_transaction(trans, ret);
+	if (ret < 0)
 		goto out;
-	}
 
-	if (ret != 0) {
-		btrfs_print_leaf(path->nodes[0]);
-		btrfs_crit(fs_info, "unable to update root key %llu %u %llu",
-			   key->objectid, key->type, key->offset);
-		BUG_ON(1);
+	if (ret > 0) {
+		btrfs_crit(fs_info,
+			"unable to find root key (%llu %u %llu) in tree %llu",
+			key->objectid, key->type, key->offset,
+			root->root_key.objectid);
+		ret = -EUCLEAN;
+		btrfs_abort_transaction(trans, ret);
+		goto out;
 	}
 
 	l = path->nodes[0];
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/send.c linux-libre-5.1.21-gnu/fs/btrfs/send.c
--- linux-libre-5.1-gnu/fs/btrfs/send.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/send.c	2019-07-28 02:28:39.000000000 -0400
@@ -5017,6 +5017,12 @@ static int send_hole(struct send_ctx *sc
 	if (offset >= sctx->cur_inode_size)
 		return 0;
 
+	/*
+	 * Don't go beyond the inode's i_size due to prealloc extents that start
+	 * after the i_size.
+	 */
+	end = min_t(u64, end, sctx->cur_inode_size);
+
 	if (sctx->flags & BTRFS_SEND_FLAG_NO_FILE_DATA)
 		return send_update_extent(sctx, offset, end - offset);
 
@@ -6579,6 +6585,38 @@ commit_trans:
 	return btrfs_commit_transaction(trans);
 }
 
+/*
+ * Make sure any existing dellaloc is flushed for any root used by a send
+ * operation so that we do not miss any data and we do not race with writeback
+ * finishing and changing a tree while send is using the tree. This could
+ * happen if a subvolume is in RW mode, has delalloc, is turned to RO mode and
+ * a send operation then uses the subvolume.
+ * After flushing delalloc ensure_commit_roots_uptodate() must be called.
+ */
+static int flush_delalloc_roots(struct send_ctx *sctx)
+{
+	struct btrfs_root *root = sctx->parent_root;
+	int ret;
+	int i;
+
+	if (root) {
+		ret = btrfs_start_delalloc_snapshot(root);
+		if (ret)
+			return ret;
+		btrfs_wait_ordered_extents(root, U64_MAX, 0, U64_MAX);
+	}
+
+	for (i = 0; i < sctx->clone_roots_cnt; i++) {
+		root = sctx->clone_roots[i].root;
+		ret = btrfs_start_delalloc_snapshot(root);
+		if (ret)
+			return ret;
+		btrfs_wait_ordered_extents(root, U64_MAX, 0, U64_MAX);
+	}
+
+	return 0;
+}
+
 static void btrfs_root_dec_send_in_progress(struct btrfs_root* root)
 {
 	spin_lock(&root->root_item_lock);
@@ -6594,6 +6632,13 @@ static void btrfs_root_dec_send_in_progr
 	spin_unlock(&root->root_item_lock);
 }
 
+static void dedupe_in_progress_warn(const struct btrfs_root *root)
+{
+	btrfs_warn_rl(root->fs_info,
+"cannot use root %llu for send while deduplications on it are in progress (%d in progress)",
+		      root->root_key.objectid, root->dedupe_in_progress);
+}
+
 long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
 {
 	int ret = 0;
@@ -6617,6 +6662,11 @@ long btrfs_ioctl_send(struct file *mnt_f
 	 * making it RW. This also protects against deletion.
 	 */
 	spin_lock(&send_root->root_item_lock);
+	if (btrfs_root_readonly(send_root) && send_root->dedupe_in_progress) {
+		dedupe_in_progress_warn(send_root);
+		spin_unlock(&send_root->root_item_lock);
+		return -EAGAIN;
+	}
 	send_root->send_in_progress++;
 	spin_unlock(&send_root->root_item_lock);
 
@@ -6751,6 +6801,13 @@ long btrfs_ioctl_send(struct file *mnt_f
 				ret = -EPERM;
 				goto out;
 			}
+			if (clone_root->dedupe_in_progress) {
+				dedupe_in_progress_warn(clone_root);
+				spin_unlock(&clone_root->root_item_lock);
+				srcu_read_unlock(&fs_info->subvol_srcu, index);
+				ret = -EAGAIN;
+				goto out;
+			}
 			clone_root->send_in_progress++;
 			spin_unlock(&clone_root->root_item_lock);
 			srcu_read_unlock(&fs_info->subvol_srcu, index);
@@ -6785,6 +6842,13 @@ long btrfs_ioctl_send(struct file *mnt_f
 			ret = -EPERM;
 			goto out;
 		}
+		if (sctx->parent_root->dedupe_in_progress) {
+			dedupe_in_progress_warn(sctx->parent_root);
+			spin_unlock(&sctx->parent_root->root_item_lock);
+			srcu_read_unlock(&fs_info->subvol_srcu, index);
+			ret = -EAGAIN;
+			goto out;
+		}
 		spin_unlock(&sctx->parent_root->root_item_lock);
 
 		srcu_read_unlock(&fs_info->subvol_srcu, index);
@@ -6803,6 +6867,10 @@ long btrfs_ioctl_send(struct file *mnt_f
 			NULL);
 	sort_clone_roots = 1;
 
+	ret = flush_delalloc_roots(sctx);
+	if (ret)
+		goto out;
+
 	ret = ensure_commit_roots_uptodate(sctx);
 	if (ret)
 		goto out;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/sysfs.c linux-libre-5.1.21-gnu/fs/btrfs/sysfs.c
--- linux-libre-5.1-gnu/fs/btrfs/sysfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/sysfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -825,7 +825,12 @@ int btrfs_sysfs_add_fsid(struct btrfs_fs
 	fs_devs->fsid_kobj.kset = btrfs_kset;
 	error = kobject_init_and_add(&fs_devs->fsid_kobj,
 				&btrfs_ktype, parent, "%pU", fs_devs->fsid);
-	return error;
+	if (error) {
+		kobject_put(&fs_devs->fsid_kobj);
+		return error;
+	}
+
+	return 0;
 }
 
 int btrfs_sysfs_add_mounted(struct btrfs_fs_info *fs_info)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/tree-log.c linux-libre-5.1.21-gnu/fs/btrfs/tree-log.c
--- linux-libre-5.1-gnu/fs/btrfs/tree-log.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/tree-log.c	2019-07-28 02:28:39.000000000 -0400
@@ -3096,6 +3096,12 @@ int btrfs_sync_log(struct btrfs_trans_ha
 	log->log_transid = root->log_transid;
 	root->log_start_pid = 0;
 	/*
+	 * Update or create log root item under the root's log_mutex to prevent
+	 * races with concurrent log syncs that can lead to failure to update
+	 * log root item because it was not created yet.
+	 */
+	ret = update_log_root(trans, log);
+	/*
 	 * IO has been started, blocks of the log tree have WRITTEN flag set
 	 * in their headers. new modifications of the log will be written to
 	 * new positions. so it's safe to allow log writers to go in.
@@ -3114,8 +3120,6 @@ int btrfs_sync_log(struct btrfs_trans_ha
 
 	mutex_unlock(&log_root_tree->log_mutex);
 
-	ret = update_log_root(trans, log);
-
 	mutex_lock(&log_root_tree->log_mutex);
 	if (atomic_dec_and_test(&log_root_tree->log_writers)) {
 		/* atomic_dec_and_test implies a barrier */
@@ -3305,6 +3309,30 @@ int btrfs_free_log_root_tree(struct btrf
 }
 
 /*
+ * Check if an inode was logged in the current transaction. We can't always rely
+ * on an inode's logged_trans value, because it's an in-memory only field and
+ * therefore not persisted. This means that its value is lost if the inode gets
+ * evicted and loaded again from disk (in which case it has a value of 0, and
+ * certainly it is smaller then any possible transaction ID), when that happens
+ * the full_sync flag is set in the inode's runtime flags, so on that case we
+ * assume eviction happened and ignore the logged_trans value, assuming the
+ * worst case, that the inode was logged before in the current transaction.
+ */
+static bool inode_logged(struct btrfs_trans_handle *trans,
+			 struct btrfs_inode *inode)
+{
+	if (inode->logged_trans == trans->transid)
+		return true;
+
+	if (inode->last_trans == trans->transid &&
+	    test_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &inode->runtime_flags) &&
+	    !test_bit(BTRFS_FS_LOG_RECOVERING, &trans->fs_info->flags))
+		return true;
+
+	return false;
+}
+
+/*
  * If both a file and directory are logged, and unlinks or renames are
  * mixed in, we have a few interesting corners:
  *
@@ -3338,7 +3366,7 @@ int btrfs_del_dir_entries_in_log(struct
 	int bytes_del = 0;
 	u64 dir_ino = btrfs_ino(dir);
 
-	if (dir->logged_trans < trans->transid)
+	if (!inode_logged(trans, dir))
 		return 0;
 
 	ret = join_running_log_trans(root);
@@ -3443,7 +3471,7 @@ int btrfs_del_inode_ref_in_log(struct bt
 	u64 index;
 	int ret;
 
-	if (inode->logged_trans < trans->transid)
+	if (!inode_logged(trans, inode))
 		return 0;
 
 	ret = join_running_log_trans(root);
@@ -4169,6 +4197,7 @@ fill_holes:
 							       *last_extent, 0,
 							       0, len, 0, len,
 							       0, 0, 0);
+				*last_extent += len;
 			}
 		}
 	}
@@ -5402,9 +5431,19 @@ log_extents:
 		}
 	}
 
+	/*
+	 * Don't update last_log_commit if we logged that an inode exists after
+	 * it was loaded to memory (full_sync bit set).
+	 * This is to prevent data loss when we do a write to the inode, then
+	 * the inode gets evicted after all delalloc was flushed, then we log
+	 * it exists (due to a rename for example) and then fsync it. This last
+	 * fsync would do nothing (not logging the extents previously written).
+	 */
 	spin_lock(&inode->lock);
 	inode->logged_trans = trans->transid;
-	inode->last_log_commit = inode->last_sub_trans;
+	if (inode_only != LOG_INODE_EXISTS ||
+	    !test_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &inode->runtime_flags))
+		inode->last_log_commit = inode->last_sub_trans;
 	spin_unlock(&inode->lock);
 out_unlock:
 	mutex_unlock(&inode->log_mutex);
@@ -5464,7 +5503,6 @@ static noinline int check_parent_dirs_fo
 {
 	int ret = 0;
 	struct dentry *old_parent = NULL;
-	struct btrfs_inode *orig_inode = inode;
 
 	/*
 	 * for regular files, if its inode is already on disk, we don't
@@ -5484,16 +5522,6 @@ static noinline int check_parent_dirs_fo
 	}
 
 	while (1) {
-		/*
-		 * If we are logging a directory then we start with our inode,
-		 * not our parent's inode, so we need to skip setting the
-		 * logged_trans so that further down in the log code we don't
-		 * think this inode has already been logged.
-		 */
-		if (inode != orig_inode)
-			inode->logged_trans = trans->transid;
-		smp_mb();
-
 		if (btrfs_must_commit_transaction(trans, inode)) {
 			ret = 1;
 			break;
@@ -6222,7 +6250,6 @@ void btrfs_record_unlink_dir(struct btrf
 	 * if this directory was already logged any new
 	 * names for this file/dir will get recorded
 	 */
-	smp_mb();
 	if (dir->logged_trans == trans->transid)
 		return;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/volumes.c linux-libre-5.1.21-gnu/fs/btrfs/volumes.c
--- linux-libre-5.1-gnu/fs/btrfs/volumes.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/volumes.c	2019-07-28 02:28:39.000000000 -0400
@@ -5222,9 +5222,11 @@ static int __btrfs_alloc_chunk(struct bt
 	if (ret)
 		goto error_del_extent;
 
-	for (i = 0; i < map->num_stripes; i++)
+	for (i = 0; i < map->num_stripes; i++) {
 		btrfs_device_set_bytes_used(map->stripes[i].dev,
 				map->stripes[i].dev->bytes_used + stripe_size);
+		map->stripes[i].dev->has_pending_chunks = true;
+	}
 
 	atomic64_sub(stripe_size * map->num_stripes, &info->free_chunk_space);
 
@@ -7716,6 +7718,7 @@ void btrfs_update_commit_device_bytes_us
 		for (i = 0; i < map->num_stripes; i++) {
 			dev = map->stripes[i].dev;
 			dev->commit_bytes_used = dev->bytes_used;
+			dev->has_pending_chunks = false;
 		}
 	}
 	mutex_unlock(&fs_info->chunk_mutex);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/volumes.h linux-libre-5.1.21-gnu/fs/btrfs/volumes.h
--- linux-libre-5.1-gnu/fs/btrfs/volumes.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/volumes.h	2019-07-28 02:28:39.000000000 -0400
@@ -54,6 +54,11 @@ struct btrfs_device {
 
 	spinlock_t io_lock ____cacheline_aligned;
 	int running_pending;
+	/* When true means this device has pending chunk alloc in
+	 * current transaction. Protected by chunk_mutex.
+	 */
+	bool has_pending_chunks;
+
 	/* regular prio bios */
 	struct btrfs_pending_bios pending_bios;
 	/* sync bios */
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/btrfs/zstd.c linux-libre-5.1.21-gnu/fs/btrfs/zstd.c
--- linux-libre-5.1-gnu/fs/btrfs/zstd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/btrfs/zstd.c	2019-07-28 02:28:39.000000000 -0400
@@ -102,10 +102,10 @@ static void zstd_reclaim_timer_fn(struct
 	unsigned long reclaim_threshold = jiffies - ZSTD_BTRFS_RECLAIM_JIFFIES;
 	struct list_head *pos, *next;
 
-	spin_lock(&wsm.lock);
+	spin_lock_bh(&wsm.lock);
 
 	if (list_empty(&wsm.lru_list)) {
-		spin_unlock(&wsm.lock);
+		spin_unlock_bh(&wsm.lock);
 		return;
 	}
 
@@ -134,7 +134,7 @@ static void zstd_reclaim_timer_fn(struct
 	if (!list_empty(&wsm.lru_list))
 		mod_timer(&wsm.timer, jiffies + ZSTD_BTRFS_RECLAIM_JIFFIES);
 
-	spin_unlock(&wsm.lock);
+	spin_unlock_bh(&wsm.lock);
 }
 
 /*
@@ -195,7 +195,7 @@ static void zstd_cleanup_workspace_manag
 	struct workspace *workspace;
 	int i;
 
-	spin_lock(&wsm.lock);
+	spin_lock_bh(&wsm.lock);
 	for (i = 0; i < ZSTD_BTRFS_MAX_LEVEL; i++) {
 		while (!list_empty(&wsm.idle_ws[i])) {
 			workspace = container_of(wsm.idle_ws[i].next,
@@ -205,7 +205,7 @@ static void zstd_cleanup_workspace_manag
 			wsm.ops->free_workspace(&workspace->list);
 		}
 	}
-	spin_unlock(&wsm.lock);
+	spin_unlock_bh(&wsm.lock);
 
 	del_timer_sync(&wsm.timer);
 }
@@ -227,7 +227,7 @@ static struct list_head *zstd_find_works
 	struct workspace *workspace;
 	int i = level - 1;
 
-	spin_lock(&wsm.lock);
+	spin_lock_bh(&wsm.lock);
 	for_each_set_bit_from(i, &wsm.active_map, ZSTD_BTRFS_MAX_LEVEL) {
 		if (!list_empty(&wsm.idle_ws[i])) {
 			ws = wsm.idle_ws[i].next;
@@ -239,11 +239,11 @@ static struct list_head *zstd_find_works
 				list_del(&workspace->lru_list);
 			if (list_empty(&wsm.idle_ws[i]))
 				clear_bit(i, &wsm.active_map);
-			spin_unlock(&wsm.lock);
+			spin_unlock_bh(&wsm.lock);
 			return ws;
 		}
 	}
-	spin_unlock(&wsm.lock);
+	spin_unlock_bh(&wsm.lock);
 
 	return NULL;
 }
@@ -302,7 +302,7 @@ static void zstd_put_workspace(struct li
 {
 	struct workspace *workspace = list_to_workspace(ws);
 
-	spin_lock(&wsm.lock);
+	spin_lock_bh(&wsm.lock);
 
 	/* A node is only taken off the lru if we are the corresponding level */
 	if (workspace->req_level == workspace->level) {
@@ -322,7 +322,7 @@ static void zstd_put_workspace(struct li
 	list_add(&workspace->list, &wsm.idle_ws[workspace->level - 1]);
 	workspace->req_level = 0;
 
-	spin_unlock(&wsm.lock);
+	spin_unlock_bh(&wsm.lock);
 
 	if (workspace->level == ZSTD_BTRFS_MAX_LEVEL)
 		cond_wake_up(&wsm.wait);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ceph/file.c linux-libre-5.1.21-gnu/fs/ceph/file.c
--- linux-libre-5.1-gnu/fs/ceph/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ceph/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -1006,7 +1006,7 @@ ceph_direct_read_write(struct kiocb *ioc
 			 * may block.
 			 */
 			truncate_inode_pages_range(inode->i_mapping, pos,
-					(pos+len) | (PAGE_SIZE - 1));
+						   PAGE_ALIGN(pos + len) - 1);
 
 			req->r_mtime = mtime;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ceph/super.c linux-libre-5.1.21-gnu/fs/ceph/super.c
--- linux-libre-5.1-gnu/fs/ceph/super.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ceph/super.c	2019-07-28 02:28:39.000000000 -0400
@@ -845,6 +845,12 @@ static void ceph_umount_begin(struct sup
 	return;
 }
 
+static int ceph_remount(struct super_block *sb, int *flags, char *data)
+{
+	sync_filesystem(sb);
+	return 0;
+}
+
 static const struct super_operations ceph_super_ops = {
 	.alloc_inode	= ceph_alloc_inode,
 	.destroy_inode	= ceph_destroy_inode,
@@ -852,6 +858,7 @@ static const struct super_operations cep
 	.drop_inode	= ceph_drop_inode,
 	.sync_fs        = ceph_sync_fs,
 	.put_super	= ceph_put_super,
+	.remount_fs	= ceph_remount,
 	.show_options   = ceph_show_options,
 	.statfs		= ceph_statfs,
 	.umount_begin   = ceph_umount_begin,
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/char_dev.c linux-libre-5.1.21-gnu/fs/char_dev.c
--- linux-libre-5.1-gnu/fs/char_dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/char_dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -159,6 +159,12 @@ __register_chrdev_region(unsigned int ma
 			ret = -EBUSY;
 			goto out;
 		}
+
+		if (new_min < old_min && new_max > old_max) {
+			ret = -EBUSY;
+			goto out;
+		}
+
 	}
 
 	cd->next = *cp;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/cifs_debug.c linux-libre-5.1.21-gnu/fs/cifs/cifs_debug.c
--- linux-libre-5.1-gnu/fs/cifs/cifs_debug.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/cifs_debug.c	2019-07-28 02:28:39.000000000 -0400
@@ -376,6 +376,8 @@ skip_rdma:
 				atomic_read(&server->in_send),
 				atomic_read(&server->num_waiters));
 #endif
+			/* dump session id helpful for use with network trace */
+			seq_printf(m, " SessionId: 0x%llx", ses->Suid);
 			if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
 				seq_puts(m, " encrypted");
 			if (ses->sign)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/cifsfs.c linux-libre-5.1.21-gnu/fs/cifs/cifsfs.c
--- linux-libre-5.1-gnu/fs/cifs/cifsfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/cifsfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -303,6 +303,7 @@ cifs_alloc_inode(struct super_block *sb)
 	cifs_inode->uniqueid = 0;
 	cifs_inode->createtime = 0;
 	cifs_inode->epoch = 0;
+	spin_lock_init(&cifs_inode->open_file_lock);
 	generate_random_uuid(cifs_inode->lease_key);
 
 	/*
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/cifs_fs_sb.h linux-libre-5.1.21-gnu/fs/cifs/cifs_fs_sb.h
--- linux-libre-5.1-gnu/fs/cifs/cifs_fs_sb.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/cifs_fs_sb.h	2019-07-28 02:28:39.000000000 -0400
@@ -83,5 +83,10 @@ struct cifs_sb_info {
 	 * failover properly.
 	 */
 	char *origin_fullpath; /* \\HOST\SHARE\[OPTIONAL PATH] */
+	/*
+	 * Indicate whether serverino option was turned off later
+	 * (cifs_autodisable_serverino) in order to match new mounts.
+	 */
+	bool mnt_cifs_serverino_autodisabled;
 };
 #endif				/* _CIFS_FS_SB_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/cifsglob.h linux-libre-5.1.21-gnu/fs/cifs/cifsglob.h
--- linux-libre-5.1-gnu/fs/cifs/cifsglob.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/cifsglob.h	2019-07-28 02:28:39.000000000 -0400
@@ -1357,6 +1357,7 @@ struct cifsInodeInfo {
 	struct rw_semaphore lock_sem;	/* protect the fields above */
 	/* BB add in lists for dirty pages i.e. write caching info for oplock */
 	struct list_head openFileList;
+	spinlock_t	open_file_lock;	/* protects openFileList */
 	__u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */
 	unsigned int oplock;		/* oplock/lease level we have */
 	unsigned int epoch;		/* used to track lease state changes */
@@ -1687,6 +1688,7 @@ static inline bool is_retryable_error(in
 
 #define   CIFS_HAS_CREDITS 0x0400    /* already has credits */
 #define   CIFS_TRANSFORM_REQ 0x0800    /* transform request before sending */
+#define   CIFS_NO_SRV_RSP    0x1000    /* there is no server response */
 
 /* Security Flags: indicate type of session setup needed */
 #define   CIFSSEC_MAY_SIGN	0x00001
@@ -1759,10 +1761,14 @@ require use of the stronger protocol */
  *  tcp_ses_lock protects:
  *	list operations on tcp and SMB session lists
  *  tcon->open_file_lock protects the list of open files hanging off the tcon
+ *  inode->open_file_lock protects the openFileList hanging off the inode
  *  cfile->file_info_lock protects counters and fields in cifs file struct
  *  f_owner.lock protects certain per file struct operations
  *  mapping->page_lock protects certain per page operations
  *
+ *  Note that the cifs_tcon.open_file_lock should be taken before
+ *  not after the cifsInodeInfo.open_file_lock
+ *
  *  Semaphores
  *  ----------
  *  sesSem     operations on smb session
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/cifssmb.c linux-libre-5.1.21-gnu/fs/cifs/cifssmb.c
--- linux-libre-5.1-gnu/fs/cifs/cifssmb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/cifssmb.c	2019-07-28 02:28:39.000000000 -0400
@@ -2540,7 +2540,7 @@ CIFSSMBLock(const unsigned int xid, stru
 
 	if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) {
 		/* no response expected */
-		flags = CIFS_ASYNC_OP | CIFS_OBREAK_OP;
+		flags = CIFS_NO_SRV_RSP | CIFS_ASYNC_OP | CIFS_OBREAK_OP;
 		pSMB->Timeout = 0;
 	} else if (waitFlag) {
 		flags = CIFS_BLOCKING_OP; /* blocking operation, no timeout */
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/connect.c linux-libre-5.1.21-gnu/fs/cifs/connect.c
--- linux-libre-5.1-gnu/fs/cifs/connect.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/connect.c	2019-07-28 02:28:39.000000000 -0400
@@ -478,6 +478,7 @@ cifs_reconnect(struct TCP_Server_Info *s
 	spin_lock(&GlobalMid_Lock);
 	server->nr_targets = 1;
 #ifdef CONFIG_CIFS_DFS_UPCALL
+	spin_unlock(&GlobalMid_Lock);
 	cifs_sb = find_super_by_tcp(server);
 	if (IS_ERR(cifs_sb)) {
 		rc = PTR_ERR(cifs_sb);
@@ -495,6 +496,7 @@ cifs_reconnect(struct TCP_Server_Info *s
 	}
 	cifs_dbg(FYI, "%s: will retry %d target(s)\n", __func__,
 		 server->nr_targets);
+	spin_lock(&GlobalMid_Lock);
 #endif
 	if (server->tcpStatus == CifsExiting) {
 		/* the demux thread will exit normally
@@ -1219,11 +1221,11 @@ next_pdu:
 					 atomic_read(&midCount));
 				cifs_dump_mem("Received Data is: ", bufs[i],
 					      HEADER_SIZE(server));
+				smb2_add_credits_from_hdr(bufs[i], server);
 #ifdef CONFIG_CIFS_DEBUG2
 				if (server->ops->dump_detail)
 					server->ops->dump_detail(bufs[i],
 								 server);
-				smb2_add_credits_from_hdr(bufs[i], server);
 				cifs_dump_mids(server);
 #endif /* CIFS_DEBUG2 */
 			}
@@ -3453,12 +3455,16 @@ compare_mount_options(struct super_block
 {
 	struct cifs_sb_info *old = CIFS_SB(sb);
 	struct cifs_sb_info *new = mnt_data->cifs_sb;
+	unsigned int oldflags = old->mnt_cifs_flags & CIFS_MOUNT_MASK;
+	unsigned int newflags = new->mnt_cifs_flags & CIFS_MOUNT_MASK;
 
 	if ((sb->s_flags & CIFS_MS_MASK) != (mnt_data->flags & CIFS_MS_MASK))
 		return 0;
 
-	if ((old->mnt_cifs_flags & CIFS_MOUNT_MASK) !=
-	    (new->mnt_cifs_flags & CIFS_MOUNT_MASK))
+	if (old->mnt_cifs_serverino_autodisabled)
+		newflags &= ~CIFS_MOUNT_SERVER_INUM;
+
+	if (oldflags != newflags)
 		return 0;
 
 	/*
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/dfs_cache.c linux-libre-5.1.21-gnu/fs/cifs/dfs_cache.c
--- linux-libre-5.1-gnu/fs/cifs/dfs_cache.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/dfs_cache.c	2019-07-28 02:28:39.000000000 -0400
@@ -131,7 +131,7 @@ static inline void flush_cache_ent(struc
 		return;
 
 	hlist_del_init_rcu(&ce->ce_hlist);
-	kfree(ce->ce_path);
+	kfree_const(ce->ce_path);
 	free_tgts(ce);
 	dfs_cache_count--;
 	call_rcu(&ce->ce_rcu, free_cache_entry);
@@ -421,7 +421,7 @@ alloc_cache_entry(const char *path, cons
 
 	rc = copy_ref_data(refs, numrefs, ce, NULL);
 	if (rc) {
-		kfree(ce->ce_path);
+		kfree_const(ce->ce_path);
 		kmem_cache_free(dfs_cache_slab, ce);
 		ce = ERR_PTR(rc);
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/file.c linux-libre-5.1.21-gnu/fs/cifs/file.c
--- linux-libre-5.1-gnu/fs/cifs/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -338,10 +338,12 @@ cifs_new_fileinfo(struct cifs_fid *fid,
 	atomic_inc(&tcon->num_local_opens);
 
 	/* if readable file instance put first in list*/
+	spin_lock(&cinode->open_file_lock);
 	if (file->f_mode & FMODE_READ)
 		list_add(&cfile->flist, &cinode->openFileList);
 	else
 		list_add_tail(&cfile->flist, &cinode->openFileList);
+	spin_unlock(&cinode->open_file_lock);
 	spin_unlock(&tcon->open_file_lock);
 
 	if (fid->purge_cache)
@@ -413,7 +415,9 @@ void _cifsFileInfo_put(struct cifsFileIn
 	cifs_add_pending_open_locked(&fid, cifs_file->tlink, &open);
 
 	/* remove it from the lists */
+	spin_lock(&cifsi->open_file_lock);
 	list_del(&cifs_file->flist);
+	spin_unlock(&cifsi->open_file_lock);
 	list_del(&cifs_file->tlist);
 	atomic_dec(&tcon->num_local_opens);
 
@@ -1950,9 +1954,9 @@ refind_writable:
 			return 0;
 		}
 
-		spin_lock(&tcon->open_file_lock);
+		spin_lock(&cifs_inode->open_file_lock);
 		list_move_tail(&inv_file->flist, &cifs_inode->openFileList);
-		spin_unlock(&tcon->open_file_lock);
+		spin_unlock(&cifs_inode->open_file_lock);
 		cifsFileInfo_put(inv_file);
 		++refind;
 		inv_file = NULL;
@@ -3221,7 +3225,9 @@ cifs_read_allocate_pages(struct cifs_rea
 	}
 
 	if (rc) {
-		for (i = 0; i < nr_pages; i++) {
+		unsigned int nr_page_failed = i;
+
+		for (i = 0; i < nr_page_failed; i++) {
 			put_page(rdata->pages[i]);
 			rdata->pages[i] = NULL;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/inode.c linux-libre-5.1.21-gnu/fs/cifs/inode.c
--- linux-libre-5.1-gnu/fs/cifs/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -2371,6 +2371,8 @@ cifs_setattr_nounix(struct dentry *diren
 	struct inode *inode = d_inode(direntry);
 	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
 	struct cifsInodeInfo *cifsInode = CIFS_I(inode);
+	struct cifsFileInfo *wfile;
+	struct cifs_tcon *tcon;
 	char *full_path = NULL;
 	int rc = -EACCES;
 	__u32 dosattr = 0;
@@ -2417,6 +2419,20 @@ cifs_setattr_nounix(struct dentry *diren
 	mapping_set_error(inode->i_mapping, rc);
 	rc = 0;
 
+	if (attrs->ia_valid & ATTR_MTIME) {
+		rc = cifs_get_writable_file(cifsInode, false, &wfile);
+		if (!rc) {
+			tcon = tlink_tcon(wfile->tlink);
+			rc = tcon->ses->server->ops->flush(xid, tcon, &wfile->fid);
+			cifsFileInfo_put(wfile);
+			if (rc)
+				return rc;
+		} else if (rc != -EBADF)
+			return rc;
+		else
+			rc = 0;
+	}
+
 	if (attrs->ia_valid & ATTR_SIZE) {
 		rc = cifs_set_file_size(inode, attrs, xid, full_path);
 		if (rc != 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/misc.c linux-libre-5.1.21-gnu/fs/cifs/misc.c
--- linux-libre-5.1-gnu/fs/cifs/misc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/misc.c	2019-07-28 02:28:39.000000000 -0400
@@ -539,6 +539,7 @@ cifs_autodisable_serverino(struct cifs_s
 			tcon = cifs_sb_master_tcon(cifs_sb);
 
 		cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_SERVER_INUM;
+		cifs_sb->mnt_cifs_serverino_autodisabled = true;
 		cifs_dbg(VFS, "Autodisabling the use of server inode numbers on %s.\n",
 			 tcon ? tcon->treeName : "new server");
 		cifs_dbg(VFS, "The server doesn't seem to support them properly or the files might be on different servers (DFS).\n");
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/smb2inode.c linux-libre-5.1.21-gnu/fs/cifs/smb2inode.c
--- linux-libre-5.1-gnu/fs/cifs/smb2inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/smb2inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -120,6 +120,8 @@ smb2_compound_op(const unsigned int xid,
 				SMB2_O_INFO_FILE, 0,
 				sizeof(struct smb2_file_all_info) +
 					  PATH_MAX * 2, 0, NULL);
+		if (rc)
+			goto finished;
 		smb2_set_next_command(tcon, &rqst[num_rqst]);
 		smb2_set_related(&rqst[num_rqst++]);
 		trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid,
@@ -147,6 +149,8 @@ smb2_compound_op(const unsigned int xid,
 					COMPOUND_FID, current->tgid,
 					FILE_DISPOSITION_INFORMATION,
 					SMB2_O_INFO_FILE, 0, data, size);
+		if (rc)
+			goto finished;
 		smb2_set_next_command(tcon, &rqst[num_rqst]);
 		smb2_set_related(&rqst[num_rqst++]);
 		trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path);
@@ -163,6 +167,8 @@ smb2_compound_op(const unsigned int xid,
 					COMPOUND_FID, current->tgid,
 					FILE_END_OF_FILE_INFORMATION,
 					SMB2_O_INFO_FILE, 0, data, size);
+		if (rc)
+			goto finished;
 		smb2_set_next_command(tcon, &rqst[num_rqst]);
 		smb2_set_related(&rqst[num_rqst++]);
 		trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path);
@@ -180,6 +186,8 @@ smb2_compound_op(const unsigned int xid,
 					COMPOUND_FID, current->tgid,
 					FILE_BASIC_INFORMATION,
 					SMB2_O_INFO_FILE, 0, data, size);
+		if (rc)
+			goto finished;
 		smb2_set_next_command(tcon, &rqst[num_rqst]);
 		smb2_set_related(&rqst[num_rqst++]);
 		trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid,
@@ -206,6 +214,8 @@ smb2_compound_op(const unsigned int xid,
 					COMPOUND_FID, current->tgid,
 					FILE_RENAME_INFORMATION,
 					SMB2_O_INFO_FILE, 0, data, size);
+		if (rc)
+			goto finished;
 		smb2_set_next_command(tcon, &rqst[num_rqst]);
 		smb2_set_related(&rqst[num_rqst++]);
 		trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
@@ -231,6 +241,8 @@ smb2_compound_op(const unsigned int xid,
 					COMPOUND_FID, current->tgid,
 					FILE_LINK_INFORMATION,
 					SMB2_O_INFO_FILE, 0, data, size);
+		if (rc)
+			goto finished;
 		smb2_set_next_command(tcon, &rqst[num_rqst]);
 		smb2_set_related(&rqst[num_rqst++]);
 		trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/smb2maperror.c linux-libre-5.1.21-gnu/fs/cifs/smb2maperror.c
--- linux-libre-5.1-gnu/fs/cifs/smb2maperror.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/smb2maperror.c	2019-07-28 02:28:39.000000000 -0400
@@ -457,7 +457,7 @@ static const struct status_to_posix_erro
 	{STATUS_FILE_INVALID, -EIO, "STATUS_FILE_INVALID"},
 	{STATUS_ALLOTTED_SPACE_EXCEEDED, -EIO,
 	"STATUS_ALLOTTED_SPACE_EXCEEDED"},
-	{STATUS_INSUFFICIENT_RESOURCES, -EREMOTEIO,
+	{STATUS_INSUFFICIENT_RESOURCES, -EAGAIN,
 				"STATUS_INSUFFICIENT_RESOURCES"},
 	{STATUS_DFS_EXIT_PATH_FOUND, -EIO, "STATUS_DFS_EXIT_PATH_FOUND"},
 	{STATUS_DEVICE_DATA_ERROR, -EIO, "STATUS_DEVICE_DATA_ERROR"},
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/smb2ops.c linux-libre-5.1.21-gnu/fs/cifs/smb2ops.c
--- linux-libre-5.1-gnu/fs/cifs/smb2ops.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/smb2ops.c	2019-07-28 02:28:39.000000000 -0400
@@ -705,8 +705,51 @@ int open_shroot(unsigned int xid, struct
 
 	smb2_set_related(&rqst[1]);
 
+	/*
+	 * We do not hold the lock for the open because in case
+	 * SMB2_open needs to reconnect, it will end up calling
+	 * cifs_mark_open_files_invalid() which takes the lock again
+	 * thus causing a deadlock
+	 */
+
+	mutex_unlock(&tcon->crfid.fid_mutex);
 	rc = compound_send_recv(xid, ses, flags, 2, rqst,
 				resp_buftype, rsp_iov);
+	mutex_lock(&tcon->crfid.fid_mutex);
+
+	/*
+	 * Now we need to check again as the cached root might have
+	 * been successfully re-opened from a concurrent process
+	 */
+
+	if (tcon->crfid.is_valid) {
+		/* work was already done */
+
+		/* stash fids for close() later */
+		struct cifs_fid fid = {
+			.persistent_fid = pfid->persistent_fid,
+			.volatile_fid = pfid->volatile_fid,
+		};
+
+		/*
+		 * caller expects this func to set pfid to a valid
+		 * cached root, so we copy the existing one and get a
+		 * reference.
+		 */
+		memcpy(pfid, tcon->crfid.fid, sizeof(*pfid));
+		kref_get(&tcon->crfid.refcount);
+
+		mutex_unlock(&tcon->crfid.fid_mutex);
+
+		if (rc == 0) {
+			/* close extra handle outside of crit sec */
+			SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+		}
+		goto oshr_free;
+	}
+
+	/* Cached root is still invalid, continue normaly */
+
 	if (rc)
 		goto oshr_exit;
 
@@ -740,8 +783,9 @@ int open_shroot(unsigned int xid, struct
 				(char *)&tcon->crfid.file_all_info))
 		tcon->crfid.file_all_info_is_valid = 1;
 
- oshr_exit:
+oshr_exit:
 	mutex_unlock(&tcon->crfid.fid_mutex);
+oshr_free:
 	SMB2_open_free(&rqst[0]);
 	SMB2_query_info_free(&rqst[1]);
 	free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
@@ -2004,6 +2048,10 @@ smb2_set_related(struct smb_rqst *rqst)
 	struct smb2_sync_hdr *shdr;
 
 	shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base);
+	if (shdr == NULL) {
+		cifs_dbg(FYI, "shdr NULL in smb2_set_related\n");
+		return;
+	}
 	shdr->Flags |= SMB2_FLAGS_RELATED_OPERATIONS;
 }
 
@@ -2018,6 +2066,12 @@ smb2_set_next_command(struct cifs_tcon *
 	unsigned long len = smb_rqst_len(server, rqst);
 	int i, num_padding;
 
+	shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base);
+	if (shdr == NULL) {
+		cifs_dbg(FYI, "shdr NULL in smb2_set_next_command\n");
+		return;
+	}
+
 	/* SMB headers in a compound are 8 byte aligned. */
 
 	/* No padding needed */
@@ -2057,7 +2111,6 @@ smb2_set_next_command(struct cifs_tcon *
 	}
 
  finished:
-	shdr = (struct smb2_sync_hdr *)(rqst->rq_iov[0].iov_base);
 	shdr->NextCommand = cpu_to_le32(len);
 }
 
@@ -2917,26 +2970,28 @@ smb21_set_oplock_level(struct cifsInodeI
 		       unsigned int epoch, bool *purge_cache)
 {
 	char message[5] = {0};
+	unsigned int new_oplock = 0;
 
 	oplock &= 0xFF;
 	if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
 		return;
 
-	cinode->oplock = 0;
 	if (oplock & SMB2_LEASE_READ_CACHING_HE) {
-		cinode->oplock |= CIFS_CACHE_READ_FLG;
+		new_oplock |= CIFS_CACHE_READ_FLG;
 		strcat(message, "R");
 	}
 	if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) {
-		cinode->oplock |= CIFS_CACHE_HANDLE_FLG;
+		new_oplock |= CIFS_CACHE_HANDLE_FLG;
 		strcat(message, "H");
 	}
 	if (oplock & SMB2_LEASE_WRITE_CACHING_HE) {
-		cinode->oplock |= CIFS_CACHE_WRITE_FLG;
+		new_oplock |= CIFS_CACHE_WRITE_FLG;
 		strcat(message, "W");
 	}
-	if (!cinode->oplock)
-		strcat(message, "None");
+	if (!new_oplock)
+		strncpy(message, "None", sizeof(message));
+
+	cinode->oplock = new_oplock;
 	cifs_dbg(FYI, "%s Lease granted on inode %p\n", message,
 		 &cinode->vfs_inode);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/smb2pdu.c linux-libre-5.1.21-gnu/fs/cifs/smb2pdu.c
--- linux-libre-5.1-gnu/fs/cifs/smb2pdu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/smb2pdu.c	2019-07-28 02:28:39.000000000 -0400
@@ -1013,7 +1013,8 @@ int smb3_validate_negotiate(const unsign
 		 * not supported error. Client should accept it.
 		 */
 		cifs_dbg(VFS, "Server does not support validate negotiate\n");
-		return 0;
+		rc = 0;
+		goto out_free_inbuf;
 	} else if (rc != 0) {
 		cifs_dbg(VFS, "validate protocol negotiate failed: %d\n", rc);
 		rc = -EIO;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/cifs/transport.c linux-libre-5.1.21-gnu/fs/cifs/transport.c
--- linux-libre-5.1-gnu/fs/cifs/transport.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/cifs/transport.c	2019-07-28 02:28:39.000000000 -0400
@@ -1054,8 +1054,11 @@ compound_send_recv(const unsigned int xi
 
 	mutex_unlock(&ses->server->srv_mutex);
 
-	if (rc < 0) {
-		/* Sending failed for some reason - return credits back */
+	/*
+	 * If sending failed for some reason or it is an oplock break that we
+	 * will not receive a response to - return credits back
+	 */
+	if (rc < 0 || (flags & CIFS_NO_SRV_RSP)) {
 		for (i = 0; i < num_rqst; i++)
 			add_credits(ses->server, &credits[i], optype);
 		goto out;
@@ -1076,9 +1079,6 @@ compound_send_recv(const unsigned int xi
 		smb311_update_preauth_hash(ses, rqst[0].rq_iov,
 					   rqst[0].rq_nvec);
 
-	if ((flags & CIFS_TIMEOUT_MASK) == CIFS_ASYNC_OP)
-		goto out;
-
 	for (i = 0; i < num_rqst; i++) {
 		rc = wait_for_response(ses->server, midQ[i]);
 		if (rc != 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/coda/file.c linux-libre-5.1.21-gnu/fs/coda/file.c
--- linux-libre-5.1-gnu/fs/coda/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/coda/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -27,6 +27,13 @@
 #include "coda_linux.h"
 #include "coda_int.h"
 
+struct coda_vm_ops {
+	atomic_t refcnt;
+	struct file *coda_file;
+	const struct vm_operations_struct *host_vm_ops;
+	struct vm_operations_struct vm_ops;
+};
+
 static ssize_t
 coda_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
@@ -61,6 +68,34 @@ coda_file_write_iter(struct kiocb *iocb,
 	return ret;
 }
 
+static void
+coda_vm_open(struct vm_area_struct *vma)
+{
+	struct coda_vm_ops *cvm_ops =
+		container_of(vma->vm_ops, struct coda_vm_ops, vm_ops);
+
+	atomic_inc(&cvm_ops->refcnt);
+
+	if (cvm_ops->host_vm_ops && cvm_ops->host_vm_ops->open)
+		cvm_ops->host_vm_ops->open(vma);
+}
+
+static void
+coda_vm_close(struct vm_area_struct *vma)
+{
+	struct coda_vm_ops *cvm_ops =
+		container_of(vma->vm_ops, struct coda_vm_ops, vm_ops);
+
+	if (cvm_ops->host_vm_ops && cvm_ops->host_vm_ops->close)
+		cvm_ops->host_vm_ops->close(vma);
+
+	if (atomic_dec_and_test(&cvm_ops->refcnt)) {
+		vma->vm_ops = cvm_ops->host_vm_ops;
+		fput(cvm_ops->coda_file);
+		kfree(cvm_ops);
+	}
+}
+
 static int
 coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
 {
@@ -68,6 +103,8 @@ coda_file_mmap(struct file *coda_file, s
 	struct coda_inode_info *cii;
 	struct file *host_file;
 	struct inode *coda_inode, *host_inode;
+	struct coda_vm_ops *cvm_ops;
+	int ret;
 
 	cfi = CODA_FTOC(coda_file);
 	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
@@ -76,6 +113,13 @@ coda_file_mmap(struct file *coda_file, s
 	if (!host_file->f_op->mmap)
 		return -ENODEV;
 
+	if (WARN_ON(coda_file != vma->vm_file))
+		return -EIO;
+
+	cvm_ops = kmalloc(sizeof(struct coda_vm_ops), GFP_KERNEL);
+	if (!cvm_ops)
+		return -ENOMEM;
+
 	coda_inode = file_inode(coda_file);
 	host_inode = file_inode(host_file);
 
@@ -89,6 +133,7 @@ coda_file_mmap(struct file *coda_file, s
 	 * the container file on us! */
 	else if (coda_inode->i_mapping != host_inode->i_mapping) {
 		spin_unlock(&cii->c_lock);
+		kfree(cvm_ops);
 		return -EBUSY;
 	}
 
@@ -97,7 +142,29 @@ coda_file_mmap(struct file *coda_file, s
 	cfi->cfi_mapcount++;
 	spin_unlock(&cii->c_lock);
 
-	return call_mmap(host_file, vma);
+	vma->vm_file = get_file(host_file);
+	ret = call_mmap(vma->vm_file, vma);
+
+	if (ret) {
+		/* if call_mmap fails, our caller will put coda_file so we
+		 * should drop the reference to the host_file that we got.
+		 */
+		fput(host_file);
+		kfree(cvm_ops);
+	} else {
+		/* here we add redirects for the open/close vm_operations */
+		cvm_ops->host_vm_ops = vma->vm_ops;
+		if (vma->vm_ops)
+			cvm_ops->vm_ops = *vma->vm_ops;
+
+		cvm_ops->vm_ops.open = coda_vm_open;
+		cvm_ops->vm_ops.close = coda_vm_close;
+		cvm_ops->coda_file = coda_file;
+		atomic_set(&cvm_ops->refcnt, 1);
+
+		vma->vm_ops = &cvm_ops->vm_ops;
+	}
+	return ret;
 }
 
 int coda_open(struct inode *coda_inode, struct file *coda_file)
@@ -207,4 +274,3 @@ const struct file_operations coda_file_o
 	.fsync		= coda_fsync,
 	.splice_read	= generic_file_splice_read,
 };
-
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/configfs/dir.c linux-libre-5.1.21-gnu/fs/configfs/dir.c
--- linux-libre-5.1-gnu/fs/configfs/dir.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/configfs/dir.c	2019-07-28 02:28:39.000000000 -0400
@@ -58,15 +58,13 @@ static void configfs_d_iput(struct dentr
 	if (sd) {
 		/* Coordinate with configfs_readdir */
 		spin_lock(&configfs_dirent_lock);
-		/* Coordinate with configfs_attach_attr where will increase
-		 * sd->s_count and update sd->s_dentry to new allocated one.
-		 * Only set sd->dentry to null when this dentry is the only
-		 * sd owner.
-		 * If not do so, configfs_d_iput may run just after
-		 * configfs_attach_attr and set sd->s_dentry to null
-		 * even it's still in use.
+		/*
+		 * Set sd->s_dentry to null only when this dentry is the one
+		 * that is going to be killed.  Otherwise configfs_d_iput may
+		 * run just after configfs_attach_attr and set sd->s_dentry to
+		 * NULL even it's still in use.
 		 */
-		if (atomic_read(&sd->s_count) <= 2)
+		if (sd->s_dentry == dentry)
 			sd->s_dentry = NULL;
 
 		spin_unlock(&configfs_dirent_lock);
@@ -1755,12 +1753,19 @@ int configfs_register_group(struct confi
 
 	inode_lock_nested(d_inode(parent), I_MUTEX_PARENT);
 	ret = create_default_group(parent_group, group);
-	if (!ret) {
-		spin_lock(&configfs_dirent_lock);
-		configfs_dir_set_ready(group->cg_item.ci_dentry->d_fsdata);
-		spin_unlock(&configfs_dirent_lock);
-	}
+	if (ret)
+		goto err_out;
+
+	spin_lock(&configfs_dirent_lock);
+	configfs_dir_set_ready(group->cg_item.ci_dentry->d_fsdata);
+	spin_unlock(&configfs_dirent_lock);
+	inode_unlock(d_inode(parent));
+	return 0;
+err_out:
 	inode_unlock(d_inode(parent));
+	mutex_lock(&subsys->su_mutex);
+	unlink_group(group);
+	mutex_unlock(&subsys->su_mutex);
 	return ret;
 }
 EXPORT_SYMBOL(configfs_register_group);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/crypto/crypto.c linux-libre-5.1.21-gnu/fs/crypto/crypto.c
--- linux-libre-5.1-gnu/fs/crypto/crypto.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/crypto/crypto.c	2019-07-28 02:28:39.000000000 -0400
@@ -159,7 +159,10 @@ int fscrypt_do_page_crypto(const struct
 	struct crypto_skcipher *tfm = ci->ci_ctfm;
 	int res = 0;
 
-	BUG_ON(len == 0);
+	if (WARN_ON_ONCE(len <= 0))
+		return -EINVAL;
+	if (WARN_ON_ONCE(len % FS_CRYPTO_BLOCK_SIZE != 0))
+		return -EINVAL;
 
 	fscrypt_generate_iv(&iv, lblk_num, ci);
 
@@ -243,8 +246,6 @@ struct page *fscrypt_encrypt_page(const
 	struct page *ciphertext_page = page;
 	int err;
 
-	BUG_ON(len % FS_CRYPTO_BLOCK_SIZE != 0);
-
 	if (inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES) {
 		/* with inplace-encryption we just encrypt the page */
 		err = fscrypt_do_page_crypto(inode, FS_ENCRYPT, lblk_num, page,
@@ -256,7 +257,8 @@ struct page *fscrypt_encrypt_page(const
 		return ciphertext_page;
 	}
 
-	BUG_ON(!PageLocked(page));
+	if (WARN_ON_ONCE(!PageLocked(page)))
+		return ERR_PTR(-EINVAL);
 
 	ctx = fscrypt_get_ctx(inode, gfp_flags);
 	if (IS_ERR(ctx))
@@ -304,8 +306,9 @@ EXPORT_SYMBOL(fscrypt_encrypt_page);
 int fscrypt_decrypt_page(const struct inode *inode, struct page *page,
 			unsigned int len, unsigned int offs, u64 lblk_num)
 {
-	if (!(inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES))
-		BUG_ON(!PageLocked(page));
+	if (WARN_ON_ONCE(!PageLocked(page) &&
+			 !(inode->i_sb->s_cop->flags & FS_CFLG_OWN_PAGES)))
+		return -EINVAL;
 
 	return fscrypt_do_page_crypto(inode, FS_DECRYPT, lblk_num, page, page,
 				      len, offs, GFP_NOFS);
@@ -334,7 +337,7 @@ static int fscrypt_d_revalidate(struct d
 	spin_lock(&dentry->d_lock);
 	cached_with_key = dentry->d_flags & DCACHE_ENCRYPTED_WITH_KEY;
 	spin_unlock(&dentry->d_lock);
-	dir_has_key = (d_inode(dir)->i_crypt_info != NULL);
+	dir_has_key = fscrypt_has_encryption_key(d_inode(dir));
 	dput(dir);
 
 	/*
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/crypto/fname.c linux-libre-5.1.21-gnu/fs/crypto/fname.c
--- linux-libre-5.1-gnu/fs/crypto/fname.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/crypto/fname.c	2019-07-28 02:28:39.000000000 -0400
@@ -269,7 +269,7 @@ int fscrypt_fname_disk_to_usr(struct ino
 	if (iname->len < FS_CRYPTO_BLOCK_SIZE)
 		return -EUCLEAN;
 
-	if (inode->i_crypt_info)
+	if (fscrypt_has_encryption_key(inode))
 		return fname_decrypt(inode, iname, oname);
 
 	if (iname->len <= FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE) {
@@ -336,7 +336,7 @@ int fscrypt_setup_filename(struct inode
 	if (ret)
 		return ret;
 
-	if (dir->i_crypt_info) {
+	if (fscrypt_has_encryption_key(dir)) {
 		if (!fscrypt_fname_encrypted_size(dir, iname->len,
 						  dir->i_sb->s_cop->max_namelen,
 						  &fname->crypto_buf.len))
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/crypto/keyinfo.c linux-libre-5.1.21-gnu/fs/crypto/keyinfo.c
--- linux-libre-5.1-gnu/fs/crypto/keyinfo.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/crypto/keyinfo.c	2019-07-28 02:28:39.000000000 -0400
@@ -509,7 +509,7 @@ int fscrypt_get_encryption_info(struct i
 	u8 *raw_key = NULL;
 	int res;
 
-	if (inode->i_crypt_info)
+	if (fscrypt_has_encryption_key(inode))
 		return 0;
 
 	res = fscrypt_initialize(inode->i_sb->s_cop->flags);
@@ -573,7 +573,7 @@ int fscrypt_get_encryption_info(struct i
 	if (res)
 		goto out;
 
-	if (cmpxchg(&inode->i_crypt_info, NULL, crypt_info) == NULL)
+	if (cmpxchg_release(&inode->i_crypt_info, NULL, crypt_info) == NULL)
 		crypt_info = NULL;
 out:
 	if (res == -ENOKEY)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/crypto/policy.c linux-libre-5.1.21-gnu/fs/crypto/policy.c
--- linux-libre-5.1-gnu/fs/crypto/policy.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/crypto/policy.c	2019-07-28 02:28:39.000000000 -0400
@@ -81,6 +81,8 @@ int fscrypt_ioctl_set_policy(struct file
 	if (ret == -ENODATA) {
 		if (!S_ISDIR(inode->i_mode))
 			ret = -ENOTDIR;
+		else if (IS_DEADDIR(inode))
+			ret = -ENOENT;
 		else if (!inode->i_sb->s_cop->empty_dir(inode))
 			ret = -ENOTEMPTY;
 		else
@@ -194,8 +196,8 @@ int fscrypt_has_permitted_context(struct
 	res = fscrypt_get_encryption_info(child);
 	if (res)
 		return 0;
-	parent_ci = parent->i_crypt_info;
-	child_ci = child->i_crypt_info;
+	parent_ci = READ_ONCE(parent->i_crypt_info);
+	child_ci = READ_ONCE(child->i_crypt_info);
 
 	if (parent_ci && child_ci) {
 		return memcmp(parent_ci->ci_master_key_descriptor,
@@ -246,7 +248,7 @@ int fscrypt_inherit_context(struct inode
 	if (res < 0)
 		return res;
 
-	ci = parent->i_crypt_info;
+	ci = READ_ONCE(parent->i_crypt_info);
 	if (ci == NULL)
 		return -ENOKEY;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/dax.c linux-libre-5.1.21-gnu/fs/dax.c
--- linux-libre-5.1-gnu/fs/dax.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/dax.c	2019-07-28 02:28:39.000000000 -0400
@@ -132,6 +132,15 @@ static int dax_is_empty_entry(void *entr
 }
 
 /*
+ * true if the entry that was found is of a smaller order than the entry
+ * we were looking for
+ */
+static bool dax_is_conflict(void *entry)
+{
+	return entry == XA_RETRY_ENTRY;
+}
+
+/*
  * DAX page cache entry locking
  */
 struct exceptional_entry_key {
@@ -203,11 +212,13 @@ static void dax_wake_entry(struct xa_sta
  * Look up entry in page cache, wait for it to become unlocked if it
  * is a DAX entry and return it.  The caller must subsequently call
  * put_unlocked_entry() if it did not lock the entry or dax_unlock_entry()
- * if it did.
+ * if it did.  The entry returned may have a larger order than @order.
+ * If @order is larger than the order of the entry found in i_pages, this
+ * function returns a dax_is_conflict entry.
  *
  * Must be called with the i_pages lock held.
  */
-static void *get_unlocked_entry(struct xa_state *xas)
+static void *get_unlocked_entry(struct xa_state *xas, unsigned int order)
 {
 	void *entry;
 	struct wait_exceptional_entry_queue ewait;
@@ -218,6 +229,8 @@ static void *get_unlocked_entry(struct x
 
 	for (;;) {
 		entry = xas_find_conflict(xas);
+		if (dax_entry_order(entry) < order)
+			return XA_RETRY_ENTRY;
 		if (!entry || WARN_ON_ONCE(!xa_is_value(entry)) ||
 				!dax_is_locked(entry))
 			return entry;
@@ -262,7 +275,7 @@ static void wait_entry_unlocked(struct x
 static void put_unlocked_entry(struct xa_state *xas, void *entry)
 {
 	/* If we were the only waiter woken, wake the next one */
-	if (entry)
+	if (entry && dax_is_conflict(entry))
 		dax_wake_entry(xas, entry, false);
 }
 
@@ -469,7 +482,7 @@ void dax_unlock_page(struct page *page,
  * overlap with xarray value entries.
  */
 static void *grab_mapping_entry(struct xa_state *xas,
-		struct address_space *mapping, unsigned long size_flag)
+		struct address_space *mapping, unsigned int order)
 {
 	unsigned long index = xas->xa_index;
 	bool pmd_downgrade = false; /* splitting PMD entry into PTE entries? */
@@ -477,20 +490,17 @@ static void *grab_mapping_entry(struct x
 
 retry:
 	xas_lock_irq(xas);
-	entry = get_unlocked_entry(xas);
+	entry = get_unlocked_entry(xas, order);
 
 	if (entry) {
+		if (dax_is_conflict(entry))
+			goto fallback;
 		if (!xa_is_value(entry)) {
 			xas_set_err(xas, EIO);
 			goto out_unlock;
 		}
 
-		if (size_flag & DAX_PMD) {
-			if (dax_is_pte_entry(entry)) {
-				put_unlocked_entry(xas, entry);
-				goto fallback;
-			}
-		} else { /* trying to grab a PTE entry */
+		if (order == 0) {
 			if (dax_is_pmd_entry(entry) &&
 			    (dax_is_zero_entry(entry) ||
 			     dax_is_empty_entry(entry))) {
@@ -531,7 +541,11 @@ retry:
 	if (entry) {
 		dax_lock_entry(xas, entry);
 	} else {
-		entry = dax_make_entry(pfn_to_pfn_t(0), size_flag | DAX_EMPTY);
+		unsigned long flags = DAX_EMPTY;
+
+		if (order > 0)
+			flags |= DAX_PMD;
+		entry = dax_make_entry(pfn_to_pfn_t(0), flags);
 		dax_lock_entry(xas, entry);
 		if (xas_error(xas))
 			goto out_unlock;
@@ -602,7 +616,7 @@ struct page *dax_layout_busy_page(struct
 		if (WARN_ON_ONCE(!xa_is_value(entry)))
 			continue;
 		if (unlikely(dax_is_locked(entry)))
-			entry = get_unlocked_entry(&xas);
+			entry = get_unlocked_entry(&xas, 0);
 		if (entry)
 			page = dax_busy_page(entry);
 		put_unlocked_entry(&xas, entry);
@@ -629,7 +643,7 @@ static int __dax_invalidate_entry(struct
 	void *entry;
 
 	xas_lock_irq(&xas);
-	entry = get_unlocked_entry(&xas);
+	entry = get_unlocked_entry(&xas, 0);
 	if (!entry || WARN_ON_ONCE(!xa_is_value(entry)))
 		goto out;
 	if (!trunc &&
@@ -728,12 +742,11 @@ static void *dax_insert_entry(struct xa_
 
 	xas_reset(xas);
 	xas_lock_irq(xas);
-	if (dax_entry_size(entry) != dax_entry_size(new_entry)) {
+	if (dax_is_zero_entry(entry) || dax_is_empty_entry(entry)) {
+		void *old;
+
 		dax_disassociate_entry(entry, mapping, false);
 		dax_associate_entry(new_entry, mapping, vmf->vma, vmf->address);
-	}
-
-	if (dax_is_zero_entry(entry) || dax_is_empty_entry(entry)) {
 		/*
 		 * Only swap our new entry into the page cache if the current
 		 * entry is a zero page or an empty entry.  If a normal PTE or
@@ -742,7 +755,7 @@ static void *dax_insert_entry(struct xa_
 		 * existing entry is a PMD, we will just leave the PMD in the
 		 * tree and dirty it if necessary.
 		 */
-		void *old = dax_lock_entry(xas, new_entry);
+		old = dax_lock_entry(xas, new_entry);
 		WARN_ON_ONCE(old != xa_mk_value(xa_to_value(entry) |
 					DAX_LOCKED));
 		entry = new_entry;
@@ -814,7 +827,7 @@ static void dax_entry_mkclean(struct add
 				goto unlock_pmd;
 
 			flush_cache_page(vma, address, pfn);
-			pmd = pmdp_huge_clear_flush(vma, address, pmdp);
+			pmd = pmdp_invalidate(vma, address, pmdp);
 			pmd = pmd_wrprotect(pmd);
 			pmd = pmd_mkclean(pmd);
 			set_pmd_at(vma->vm_mm, address, pmdp, pmd);
@@ -857,7 +870,7 @@ static int dax_writeback_one(struct xa_s
 	if (unlikely(dax_is_locked(entry))) {
 		void *old_entry = entry;
 
-		entry = get_unlocked_entry(xas);
+		entry = get_unlocked_entry(xas, 0);
 
 		/* Entry got punched out / reallocated? */
 		if (!entry || WARN_ON_ONCE(!xa_is_value(entry)))
@@ -1518,7 +1531,7 @@ static vm_fault_t dax_iomap_pmd_fault(st
 	 * entry is already in the array, for instance), it will return
 	 * VM_FAULT_FALLBACK.
 	 */
-	entry = grab_mapping_entry(&xas, mapping, DAX_PMD);
+	entry = grab_mapping_entry(&xas, mapping, PMD_ORDER);
 	if (xa_is_internal(entry)) {
 		result = xa_to_internal(entry);
 		goto fallback;
@@ -1575,8 +1588,7 @@ static vm_fault_t dax_iomap_pmd_fault(st
 		}
 
 		trace_dax_pmd_insert_mapping(inode, vmf, PMD_SIZE, pfn, entry);
-		result = vmf_insert_pfn_pmd(vma, vmf->address, vmf->pmd, pfn,
-					    write);
+		result = vmf_insert_pfn_pmd(vmf, pfn, write);
 		break;
 	case IOMAP_UNWRITTEN:
 	case IOMAP_HOLE:
@@ -1668,11 +1680,10 @@ dax_insert_pfn_mkwrite(struct vm_fault *
 	vm_fault_t ret;
 
 	xas_lock_irq(&xas);
-	entry = get_unlocked_entry(&xas);
+	entry = get_unlocked_entry(&xas, order);
 	/* Did we race with someone splitting entry or so? */
-	if (!entry ||
-	    (order == 0 && !dax_is_pte_entry(entry)) ||
-	    (order == PMD_ORDER && !dax_is_pmd_entry(entry))) {
+	if (!entry || dax_is_conflict(entry) ||
+	    (order == 0 && !dax_is_pte_entry(entry))) {
 		put_unlocked_entry(&xas, entry);
 		xas_unlock_irq(&xas);
 		trace_dax_insert_pfn_mkwrite_no_entry(mapping->host, vmf,
@@ -1686,8 +1697,7 @@ dax_insert_pfn_mkwrite(struct vm_fault *
 		ret = vmf_insert_mixed_mkwrite(vmf->vma, vmf->address, pfn);
 #ifdef CONFIG_FS_DAX_PMD
 	else if (order == PMD_ORDER)
-		ret = vmf_insert_pfn_pmd(vmf->vma, vmf->address, vmf->pmd,
-			pfn, true);
+		ret = vmf_insert_pfn_pmd(vmf, pfn, FAULT_FLAG_WRITE);
 #endif
 	else
 		ret = VM_FAULT_FALLBACK;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/dcache.c linux-libre-5.1.21-gnu/fs/dcache.c
--- linux-libre-5.1-gnu/fs/dcache.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/dcache.c	2019-07-28 02:28:39.000000000 -0400
@@ -344,7 +344,7 @@ static void dentry_free(struct dentry *d
 		}
 	}
 	/* if dentry was never visible to RCU, immediate free is OK */
-	if (!(dentry->d_flags & DCACHE_RCUACCESS))
+	if (dentry->d_flags & DCACHE_NORCU)
 		__d_free(&dentry->d_u.d_rcu);
 	else
 		call_rcu(&dentry->d_u.d_rcu, __d_free);
@@ -1701,7 +1701,6 @@ struct dentry *d_alloc(struct dentry * p
 	struct dentry *dentry = __d_alloc(parent->d_sb, name);
 	if (!dentry)
 		return NULL;
-	dentry->d_flags |= DCACHE_RCUACCESS;
 	spin_lock(&parent->d_lock);
 	/*
 	 * don't need child lock because it is not subject
@@ -1726,7 +1725,7 @@ struct dentry *d_alloc_cursor(struct den
 {
 	struct dentry *dentry = d_alloc_anon(parent->d_sb);
 	if (dentry) {
-		dentry->d_flags |= DCACHE_RCUACCESS | DCACHE_DENTRY_CURSOR;
+		dentry->d_flags |= DCACHE_DENTRY_CURSOR;
 		dentry->d_parent = dget(parent);
 	}
 	return dentry;
@@ -1739,10 +1738,17 @@ struct dentry *d_alloc_cursor(struct den
  *
  * For a filesystem that just pins its dentries in memory and never
  * performs lookups at all, return an unhashed IS_ROOT dentry.
+ * This is used for pipes, sockets et.al. - the stuff that should
+ * never be anyone's children or parents.  Unlike all other
+ * dentries, these will not have RCU delay between dropping the
+ * last reference and freeing them.
  */
 struct dentry *d_alloc_pseudo(struct super_block *sb, const struct qstr *name)
 {
-	return __d_alloc(sb, name);
+	struct dentry *dentry = __d_alloc(sb, name);
+	if (likely(dentry))
+		dentry->d_flags |= DCACHE_NORCU;
+	return dentry;
 }
 EXPORT_SYMBOL(d_alloc_pseudo);
 
@@ -1911,12 +1917,10 @@ struct dentry *d_make_root(struct inode
 
 	if (root_inode) {
 		res = d_alloc_anon(root_inode->i_sb);
-		if (res) {
-			res->d_flags |= DCACHE_RCUACCESS;
+		if (res)
 			d_instantiate(res, root_inode);
-		} else {
+		else
 			iput(root_inode);
-		}
 	}
 	return res;
 }
@@ -2781,9 +2785,7 @@ static void __d_move(struct dentry *dent
 		copy_name(dentry, target);
 		target->d_hash.pprev = NULL;
 		dentry->d_parent->d_lockref.count++;
-		if (dentry == old_parent)
-			dentry->d_flags |= DCACHE_RCUACCESS;
-		else
+		if (dentry != old_parent) /* wasn't IS_ROOT */
 			WARN_ON(!--old_parent->d_lockref.count);
 	} else {
 		target->d_parent = old_parent;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ecryptfs/crypto.c linux-libre-5.1.21-gnu/fs/ecryptfs/crypto.c
--- linux-libre-5.1-gnu/fs/ecryptfs/crypto.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ecryptfs/crypto.c	2019-07-28 02:28:39.000000000 -0400
@@ -1019,8 +1019,10 @@ int ecryptfs_read_and_validate_header_re
 
 	rc = ecryptfs_read_lower(file_size, 0, ECRYPTFS_SIZE_AND_MARKER_BYTES,
 				 inode);
-	if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
-		return rc >= 0 ? -EINVAL : rc;
+	if (rc < 0)
+		return rc;
+	else if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
+		return -EINVAL;
 	rc = ecryptfs_validate_marker(marker);
 	if (!rc)
 		ecryptfs_i_size_init(file_size, inode);
@@ -1382,8 +1384,10 @@ int ecryptfs_read_and_validate_xattr_reg
 				     ecryptfs_inode_to_lower(inode),
 				     ECRYPTFS_XATTR_NAME, file_size,
 				     ECRYPTFS_SIZE_AND_MARKER_BYTES);
-	if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
-		return rc >= 0 ? -EINVAL : rc;
+	if (rc < 0)
+		return rc;
+	else if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)
+		return -EINVAL;
 	rc = ecryptfs_validate_marker(marker);
 	if (!rc)
 		ecryptfs_i_size_init(file_size, inode);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/eventpoll.c linux-libre-5.1.21-gnu/fs/eventpoll.c
--- linux-libre-5.1-gnu/fs/eventpoll.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/eventpoll.c	2019-07-28 02:28:39.000000000 -0400
@@ -2330,7 +2330,7 @@ SYSCALL_DEFINE6(epoll_pwait, int, epfd,
 
 	error = do_epoll_wait(epfd, events, maxevents, timeout);
 
-	restore_user_sigmask(sigmask, &sigsaved);
+	restore_user_sigmask(sigmask, &sigsaved, error == -EINTR);
 
 	return error;
 }
@@ -2355,7 +2355,7 @@ COMPAT_SYSCALL_DEFINE6(epoll_pwait, int,
 
 	err = do_epoll_wait(epfd, events, maxevents, timeout);
 
-	restore_user_sigmask(sigmask, &sigsaved);
+	restore_user_sigmask(sigmask, &sigsaved, err == -EINTR);
 
 	return err;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/dir.c linux-libre-5.1.21-gnu/fs/ext4/dir.c
--- linux-libre-5.1-gnu/fs/ext4/dir.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/dir.c	2019-07-28 02:28:39.000000000 -0400
@@ -108,7 +108,6 @@ static int ext4_readdir(struct file *fil
 	struct inode *inode = file_inode(file);
 	struct super_block *sb = inode->i_sb;
 	struct buffer_head *bh = NULL;
-	int dir_has_error = 0;
 	struct fscrypt_str fstr = FSTR_INIT(NULL, 0);
 
 	if (IS_ENCRYPTED(inode)) {
@@ -144,8 +143,6 @@ static int ext4_readdir(struct file *fil
 			return err;
 	}
 
-	offset = ctx->pos & (sb->s_blocksize - 1);
-
 	while (ctx->pos < inode->i_size) {
 		struct ext4_map_blocks map;
 
@@ -154,9 +151,18 @@ static int ext4_readdir(struct file *fil
 			goto errout;
 		}
 		cond_resched();
+		offset = ctx->pos & (sb->s_blocksize - 1);
 		map.m_lblk = ctx->pos >> EXT4_BLOCK_SIZE_BITS(sb);
 		map.m_len = 1;
 		err = ext4_map_blocks(NULL, inode, &map, 0);
+		if (err == 0) {
+			/* m_len should never be zero but let's avoid
+			 * an infinite loop if it somehow is */
+			if (map.m_len == 0)
+				map.m_len = 1;
+			ctx->pos += map.m_len * sb->s_blocksize;
+			continue;
+		}
 		if (err > 0) {
 			pgoff_t index = map.m_pblk >>
 					(PAGE_SHIFT - inode->i_blkbits);
@@ -175,13 +181,6 @@ static int ext4_readdir(struct file *fil
 		}
 
 		if (!bh) {
-			if (!dir_has_error) {
-				EXT4_ERROR_FILE(file, 0,
-						"directory contains a "
-						"hole at offset %llu",
-					   (unsigned long long) ctx->pos);
-				dir_has_error = 1;
-			}
 			/* corrupt size?  Maybe no more blocks to read */
 			if (ctx->pos > inode->i_blocks << 9)
 				break;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/ext4_jbd2.h linux-libre-5.1.21-gnu/fs/ext4/ext4_jbd2.h
--- linux-libre-5.1-gnu/fs/ext4/ext4_jbd2.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/ext4_jbd2.h	2019-07-28 02:28:39.000000000 -0400
@@ -361,20 +361,20 @@ static inline int ext4_journal_force_com
 }
 
 static inline int ext4_jbd2_inode_add_write(handle_t *handle,
-					    struct inode *inode)
+		struct inode *inode, loff_t start_byte, loff_t length)
 {
 	if (ext4_handle_valid(handle))
-		return jbd2_journal_inode_add_write(handle,
-						    EXT4_I(inode)->jinode);
+		return jbd2_journal_inode_ranged_write(handle,
+				EXT4_I(inode)->jinode, start_byte, length);
 	return 0;
 }
 
 static inline int ext4_jbd2_inode_add_wait(handle_t *handle,
-					   struct inode *inode)
+		struct inode *inode, loff_t start_byte, loff_t length)
 {
 	if (ext4_handle_valid(handle))
-		return jbd2_journal_inode_add_wait(handle,
-						   EXT4_I(inode)->jinode);
+		return jbd2_journal_inode_ranged_wait(handle,
+				EXT4_I(inode)->jinode, start_byte, length);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/extents.c linux-libre-5.1.21-gnu/fs/ext4/extents.c
--- linux-libre-5.1-gnu/fs/ext4/extents.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/extents.c	2019-07-28 02:28:39.000000000 -0400
@@ -1035,6 +1035,7 @@ static int ext4_ext_split(handle_t *hand
 	__le32 border;
 	ext4_fsblk_t *ablocks = NULL; /* array of allocated blocks */
 	int err = 0;
+	size_t ext_size = 0;
 
 	/* make decision: where to split? */
 	/* FIXME: now decision is simplest: at current extent */
@@ -1126,6 +1127,10 @@ static int ext4_ext_split(handle_t *hand
 		le16_add_cpu(&neh->eh_entries, m);
 	}
 
+	/* zero out unused area in the extent block */
+	ext_size = sizeof(struct ext4_extent_header) +
+		sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries);
+	memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size);
 	ext4_extent_block_csum_set(inode, neh);
 	set_buffer_uptodate(bh);
 	unlock_buffer(bh);
@@ -1205,6 +1210,11 @@ static int ext4_ext_split(handle_t *hand
 				sizeof(struct ext4_extent_idx) * m);
 			le16_add_cpu(&neh->eh_entries, m);
 		}
+		/* zero out unused area in the extent block */
+		ext_size = sizeof(struct ext4_extent_header) +
+		   (sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries));
+		memset(bh->b_data + ext_size, 0,
+			inode->i_sb->s_blocksize - ext_size);
 		ext4_extent_block_csum_set(inode, neh);
 		set_buffer_uptodate(bh);
 		unlock_buffer(bh);
@@ -1270,6 +1280,7 @@ static int ext4_ext_grow_indepth(handle_
 	ext4_fsblk_t newblock, goal = 0;
 	struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
 	int err = 0;
+	size_t ext_size = 0;
 
 	/* Try to prepend new index to old one */
 	if (ext_depth(inode))
@@ -1295,9 +1306,11 @@ static int ext4_ext_grow_indepth(handle_
 		goto out;
 	}
 
+	ext_size = sizeof(EXT4_I(inode)->i_data);
 	/* move top-level index/leaf into new block */
-	memmove(bh->b_data, EXT4_I(inode)->i_data,
-		sizeof(EXT4_I(inode)->i_data));
+	memmove(bh->b_data, EXT4_I(inode)->i_data, ext_size);
+	/* zero out unused area in the extent block */
+	memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size);
 
 	/* set size of new block */
 	neh = ext_block_hdr(bh);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/file.c linux-libre-5.1.21-gnu/fs/ext4/file.c
--- linux-libre-5.1-gnu/fs/ext4/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -165,6 +165,10 @@ static ssize_t ext4_write_checks(struct
 	ret = generic_write_checks(iocb, from);
 	if (ret <= 0)
 		return ret;
+
+	if (unlikely(IS_IMMUTABLE(inode)))
+		return -EPERM;
+
 	/*
 	 * If we have encountered a bitmap-format file, the size limit
 	 * is smaller than s_maxbytes, which is for extent-mapped files.
@@ -264,6 +268,13 @@ ext4_file_write_iter(struct kiocb *iocb,
 	}
 
 	ret = __generic_file_write_iter(iocb, from);
+	/*
+	 * Unaligned direct AIO must be the only IO in flight. Otherwise
+	 * overlapping aligned IO after unaligned might result in data
+	 * corruption.
+	 */
+	if (ret == -EIOCBQUEUED && unaligned_aio)
+		ext4_unwritten_wait(inode);
 	inode_unlock(inode);
 
 	if (ret > 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/inode.c linux-libre-5.1.21-gnu/fs/ext4/inode.c
--- linux-libre-5.1-gnu/fs/ext4/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -727,10 +727,16 @@ out_sem:
 		    !(flags & EXT4_GET_BLOCKS_ZERO) &&
 		    !ext4_is_quota_file(inode) &&
 		    ext4_should_order_data(inode)) {
+			loff_t start_byte =
+				(loff_t)map->m_lblk << inode->i_blkbits;
+			loff_t length = (loff_t)map->m_len << inode->i_blkbits;
+
 			if (flags & EXT4_GET_BLOCKS_IO_SUBMIT)
-				ret = ext4_jbd2_inode_add_wait(handle, inode);
+				ret = ext4_jbd2_inode_add_wait(handle, inode,
+						start_byte, length);
 			else
-				ret = ext4_jbd2_inode_add_write(handle, inode);
+				ret = ext4_jbd2_inode_add_write(handle, inode,
+						start_byte, length);
 			if (ret)
 				return ret;
 		}
@@ -4081,7 +4087,8 @@ static int __ext4_block_zero_page_range(
 		err = 0;
 		mark_buffer_dirty(bh);
 		if (ext4_should_order_data(inode))
-			err = ext4_jbd2_inode_add_write(handle, inode);
+			err = ext4_jbd2_inode_add_write(handle, inode, from,
+					length);
 	}
 
 unlock:
@@ -5514,6 +5521,14 @@ int ext4_setattr(struct dentry *dentry,
 	if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb))))
 		return -EIO;
 
+	if (unlikely(IS_IMMUTABLE(inode)))
+		return -EPERM;
+
+	if (unlikely(IS_APPEND(inode) &&
+		     (ia_valid & (ATTR_MODE | ATTR_UID |
+				  ATTR_GID | ATTR_TIMES_SET))))
+		return -EPERM;
+
 	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
@@ -5619,25 +5634,22 @@ int ext4_setattr(struct dentry *dentry,
 			up_write(&EXT4_I(inode)->i_data_sem);
 			ext4_journal_stop(handle);
 			if (error) {
-				if (orphan)
+				if (orphan && inode->i_nlink)
 					ext4_orphan_del(NULL, inode);
 				goto err_out;
 			}
 		}
-		if (!shrink)
+		if (!shrink) {
 			pagecache_isize_extended(inode, oldsize, inode->i_size);
-
-		/*
-		 * Blocks are going to be removed from the inode. Wait
-		 * for dio in flight.  Temporarily disable
-		 * dioread_nolock to prevent livelock.
-		 */
-		if (orphan) {
-			if (!ext4_should_journal_data(inode)) {
-				inode_dio_wait(inode);
-			} else
-				ext4_wait_for_tail_page_commit(inode);
+		} else {
+			/*
+			 * Blocks are going to be removed from the inode. Wait
+			 * for dio in flight.
+			 */
+			inode_dio_wait(inode);
 		}
+		if (orphan && ext4_should_journal_data(inode))
+			ext4_wait_for_tail_page_commit(inode);
 		down_write(&EXT4_I(inode)->i_mmap_sem);
 
 		rc = ext4_break_layouts(inode);
@@ -6187,6 +6199,9 @@ vm_fault_t ext4_page_mkwrite(struct vm_f
 	get_block_t *get_block;
 	int retries = 0;
 
+	if (unlikely(IS_IMMUTABLE(inode)))
+		return VM_FAULT_SIGBUS;
+
 	sb_start_pagefault(inode->i_sb);
 	file_update_time(vma->vm_file);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/ioctl.c linux-libre-5.1.21-gnu/fs/ext4/ioctl.c
--- linux-libre-5.1-gnu/fs/ext4/ioctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/ioctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -269,6 +269,29 @@ static int uuid_is_zero(__u8 u[16])
 }
 #endif
 
+/*
+ * If immutable is set and we are not clearing it, we're not allowed to change
+ * anything else in the inode.  Don't error out if we're only trying to set
+ * immutable on an immutable file.
+ */
+static int ext4_ioctl_check_immutable(struct inode *inode, __u32 new_projid,
+				      unsigned int flags)
+{
+	struct ext4_inode_info *ei = EXT4_I(inode);
+	unsigned int oldflags = ei->i_flags;
+
+	if (!(oldflags & EXT4_IMMUTABLE_FL) || !(flags & EXT4_IMMUTABLE_FL))
+		return 0;
+
+	if ((oldflags & ~EXT4_IMMUTABLE_FL) != (flags & ~EXT4_IMMUTABLE_FL))
+		return -EPERM;
+	if (ext4_has_feature_project(inode->i_sb) &&
+	    __kprojid_val(ei->i_projid) != new_projid)
+		return -EPERM;
+
+	return 0;
+}
+
 static int ext4_ioctl_setflags(struct inode *inode,
 			       unsigned int flags)
 {
@@ -322,6 +345,20 @@ static int ext4_ioctl_setflags(struct in
 			goto flags_out;
 	}
 
+	/*
+	 * Wait for all pending directio and then flush all the dirty pages
+	 * for this file.  The flush marks all the pages readonly, so any
+	 * subsequent attempt to write to the file (particularly mmap pages)
+	 * will come through the filesystem and fail.
+	 */
+	if (S_ISREG(inode->i_mode) && !IS_IMMUTABLE(inode) &&
+	    (flags & EXT4_IMMUTABLE_FL)) {
+		inode_dio_wait(inode);
+		err = filemap_write_and_wait(inode->i_mapping);
+		if (err)
+			goto flags_out;
+	}
+
 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
 	if (IS_ERR(handle)) {
 		err = PTR_ERR(handle);
@@ -751,7 +788,11 @@ long ext4_ioctl(struct file *filp, unsig
 			return err;
 
 		inode_lock(inode);
-		err = ext4_ioctl_setflags(inode, flags);
+		err = ext4_ioctl_check_immutable(inode,
+				from_kprojid(&init_user_ns, ei->i_projid),
+				flags);
+		if (!err)
+			err = ext4_ioctl_setflags(inode, flags);
 		inode_unlock(inode);
 		mnt_drop_write_file(filp);
 		return err;
@@ -978,7 +1019,7 @@ mext_out:
 		if (err == 0)
 			err = err2;
 		mnt_drop_write_file(filp);
-		if (!err && (o_group > EXT4_SB(sb)->s_groups_count) &&
+		if (!err && (o_group < EXT4_SB(sb)->s_groups_count) &&
 		    ext4_has_group_desc_csum(sb) &&
 		    test_opt(sb, INIT_INODE_TABLE))
 			err = ext4_register_li_request(sb, o_group);
@@ -1121,6 +1162,9 @@ resizefs_out:
 			goto out;
 		flags = (ei->i_flags & ~EXT4_FL_XFLAG_VISIBLE) |
 			 (flags & EXT4_FL_XFLAG_VISIBLE);
+		err = ext4_ioctl_check_immutable(inode, fa.fsx_projid, flags);
+		if (err)
+			goto out;
 		err = ext4_ioctl_setflags(inode, flags);
 		if (err)
 			goto out;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/mballoc.c linux-libre-5.1.21-gnu/fs/ext4/mballoc.c
--- linux-libre-5.1-gnu/fs/ext4/mballoc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/mballoc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1539,7 +1539,7 @@ static int mb_find_extent(struct ext4_bu
 		ex->fe_len += 1 << order;
 	}
 
-	if (ex->fe_start + ex->fe_len > (1 << (e4b->bd_blkbits + 3))) {
+	if (ex->fe_start + ex->fe_len > EXT4_CLUSTERS_PER_GROUP(e4b->bd_sb)) {
 		/* Should never happen! (but apparently sometimes does?!?) */
 		WARN_ON(1);
 		ext4_error(e4b->bd_sb, "corruption or bug in mb_find_extent "
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/move_extent.c linux-libre-5.1.21-gnu/fs/ext4/move_extent.c
--- linux-libre-5.1-gnu/fs/ext4/move_extent.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/move_extent.c	2019-07-28 02:28:39.000000000 -0400
@@ -390,7 +390,8 @@ data_copy:
 
 	/* Even in case of data=writeback it is reasonable to pin
 	 * inode to transaction, to prevent unexpected data loss */
-	*err = ext4_jbd2_inode_add_write(handle, orig_inode);
+	*err = ext4_jbd2_inode_add_write(handle, orig_inode,
+			(loff_t)orig_page_offset << PAGE_SHIFT, replaced_size);
 
 unlock_pages:
 	unlock_page(pagep[0]);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/namei.c linux-libre-5.1.21-gnu/fs/ext4/namei.c
--- linux-libre-5.1-gnu/fs/ext4/namei.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/namei.c	2019-07-28 02:28:39.000000000 -0400
@@ -81,8 +81,18 @@ static struct buffer_head *ext4_append(h
 static int ext4_dx_csum_verify(struct inode *inode,
 			       struct ext4_dir_entry *dirent);
 
+/*
+ * Hints to ext4_read_dirblock regarding whether we expect a directory
+ * block being read to be an index block, or a block containing
+ * directory entries (and if the latter, whether it was found via a
+ * logical block in an htree index block).  This is used to control
+ * what sort of sanity checkinig ext4_read_dirblock() will do on the
+ * directory block read from the storage device.  EITHER will means
+ * the caller doesn't know what kind of directory block will be read,
+ * so no specific verification will be done.
+ */
 typedef enum {
-	EITHER, INDEX, DIRENT
+	EITHER, INDEX, DIRENT, DIRENT_HTREE
 } dirblock_type_t;
 
 #define ext4_read_dirblock(inode, block, type) \
@@ -108,11 +118,14 @@ static struct buffer_head *__ext4_read_d
 
 		return bh;
 	}
-	if (!bh) {
+	if (!bh && (type == INDEX || type == DIRENT_HTREE)) {
 		ext4_error_inode(inode, func, line, block,
-				 "Directory hole found");
+				 "Directory hole found for htree %s block",
+				 (type == INDEX) ? "index" : "leaf");
 		return ERR_PTR(-EFSCORRUPTED);
 	}
+	if (!bh)
+		return NULL;
 	dirent = (struct ext4_dir_entry *) bh->b_data;
 	/* Determine whether or not we have an index block */
 	if (is_dx(inode)) {
@@ -871,12 +884,15 @@ static void dx_release(struct dx_frame *
 {
 	struct dx_root_info *info;
 	int i;
+	unsigned int indirect_levels;
 
 	if (frames[0].bh == NULL)
 		return;
 
 	info = &((struct dx_root *)frames[0].bh->b_data)->info;
-	for (i = 0; i <= info->indirect_levels; i++) {
+	/* save local copy, "info" may be freed after brelse() */
+	indirect_levels = info->indirect_levels;
+	for (i = 0; i <= indirect_levels; i++) {
 		if (frames[i].bh == NULL)
 			break;
 		brelse(frames[i].bh);
@@ -976,7 +992,7 @@ static int htree_dirblock_to_tree(struct
 
 	dxtrace(printk(KERN_INFO "In htree dirblock_to_tree: block %lu\n",
 							(unsigned long)block));
-	bh = ext4_read_dirblock(dir, block, DIRENT);
+	bh = ext4_read_dirblock(dir, block, DIRENT_HTREE);
 	if (IS_ERR(bh))
 		return PTR_ERR(bh);
 
@@ -1506,7 +1522,7 @@ static struct buffer_head * ext4_dx_find
 		return (struct buffer_head *) frame;
 	do {
 		block = dx_get_block(frame->at);
-		bh = ext4_read_dirblock(dir, block, DIRENT);
+		bh = ext4_read_dirblock(dir, block, DIRENT_HTREE);
 		if (IS_ERR(bh))
 			goto errout;
 
@@ -2076,6 +2092,11 @@ static int ext4_add_entry(handle_t *hand
 	blocks = dir->i_size >> sb->s_blocksize_bits;
 	for (block = 0; block < blocks; block++) {
 		bh = ext4_read_dirblock(dir, block, DIRENT);
+		if (bh == NULL) {
+			bh = ext4_bread(handle, dir, block,
+					EXT4_GET_BLOCKS_CREATE);
+			goto add_to_new_block;
+		}
 		if (IS_ERR(bh)) {
 			retval = PTR_ERR(bh);
 			bh = NULL;
@@ -2096,6 +2117,7 @@ static int ext4_add_entry(handle_t *hand
 		brelse(bh);
 	}
 	bh = ext4_append(handle, dir, &block);
+add_to_new_block:
 	if (IS_ERR(bh)) {
 		retval = PTR_ERR(bh);
 		bh = NULL;
@@ -2140,7 +2162,7 @@ again:
 		return PTR_ERR(frame);
 	entries = frame->entries;
 	at = frame->at;
-	bh = ext4_read_dirblock(dir, dx_get_block(frame->at), DIRENT);
+	bh = ext4_read_dirblock(dir, dx_get_block(frame->at), DIRENT_HTREE);
 	if (IS_ERR(bh)) {
 		err = PTR_ERR(bh);
 		bh = NULL;
@@ -2688,7 +2710,10 @@ bool ext4_empty_dir(struct inode *inode)
 		EXT4_ERROR_INODE(inode, "invalid size");
 		return true;
 	}
-	bh = ext4_read_dirblock(inode, 0, EITHER);
+	/* The first directory block must not be a hole,
+	 * so treat it as DIRENT_HTREE
+	 */
+	bh = ext4_read_dirblock(inode, 0, DIRENT_HTREE);
 	if (IS_ERR(bh))
 		return true;
 
@@ -2710,6 +2735,10 @@ bool ext4_empty_dir(struct inode *inode)
 			brelse(bh);
 			lblock = offset >> EXT4_BLOCK_SIZE_BITS(sb);
 			bh = ext4_read_dirblock(inode, lblock, EITHER);
+			if (bh == NULL) {
+				offset += sb->s_blocksize;
+				continue;
+			}
 			if (IS_ERR(bh))
 				return true;
 			de = (struct ext4_dir_entry_2 *) bh->b_data;
@@ -3253,7 +3282,10 @@ static struct buffer_head *ext4_get_firs
 	struct buffer_head *bh;
 
 	if (!ext4_has_inline_data(inode)) {
-		bh = ext4_read_dirblock(inode, 0, EITHER);
+		/* The first directory block must not be a hole, so
+		 * treat it as DIRENT_HTREE
+		 */
+		bh = ext4_read_dirblock(inode, 0, DIRENT_HTREE);
 		if (IS_ERR(bh)) {
 			*retval = PTR_ERR(bh);
 			return NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/resize.c linux-libre-5.1.21-gnu/fs/ext4/resize.c
--- linux-libre-5.1-gnu/fs/ext4/resize.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/resize.c	2019-07-28 02:28:39.000000000 -0400
@@ -874,6 +874,7 @@ static int add_new_gdb(handle_t *handle,
 	err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
 	if (unlikely(err)) {
 		ext4_std_error(sb, err);
+		iloc.bh = NULL;
 		goto errout;
 	}
 	brelse(dind);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/super.c linux-libre-5.1.21-gnu/fs/ext4/super.c
--- linux-libre-5.1-gnu/fs/ext4/super.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/super.c	2019-07-28 02:28:39.000000000 -0400
@@ -698,7 +698,7 @@ void __ext4_abort(struct super_block *sb
 			jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
 		save_error_info(sb, function, line);
 	}
-	if (test_opt(sb, ERRORS_PANIC)) {
+	if (test_opt(sb, ERRORS_PANIC) && !system_going_down()) {
 		if (EXT4_SB(sb)->s_journal &&
 		  !(EXT4_SB(sb)->s_journal->j_flags & JBD2_REC_ERR))
 			return;
@@ -3513,6 +3513,37 @@ int ext4_calculate_overhead(struct super
 	return 0;
 }
 
+static void ext4_clamp_want_extra_isize(struct super_block *sb)
+{
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	struct ext4_super_block *es = sbi->s_es;
+
+	/* determine the minimum size of new large inodes, if present */
+	if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE &&
+	    sbi->s_want_extra_isize == 0) {
+		sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
+						     EXT4_GOOD_OLD_INODE_SIZE;
+		if (ext4_has_feature_extra_isize(sb)) {
+			if (sbi->s_want_extra_isize <
+			    le16_to_cpu(es->s_want_extra_isize))
+				sbi->s_want_extra_isize =
+					le16_to_cpu(es->s_want_extra_isize);
+			if (sbi->s_want_extra_isize <
+			    le16_to_cpu(es->s_min_extra_isize))
+				sbi->s_want_extra_isize =
+					le16_to_cpu(es->s_min_extra_isize);
+		}
+	}
+	/* Check if enough inode space is available */
+	if (EXT4_GOOD_OLD_INODE_SIZE + sbi->s_want_extra_isize >
+							sbi->s_inode_size) {
+		sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
+						       EXT4_GOOD_OLD_INODE_SIZE;
+		ext4_msg(sb, KERN_INFO,
+			 "required extra inode space not available");
+	}
+}
+
 static void ext4_set_resv_clusters(struct super_block *sb)
 {
 	ext4_fsblk_t resv_clusters;
@@ -4238,7 +4269,7 @@ static int ext4_fill_super(struct super_
 				 "data=, fs mounted w/o journal");
 			goto failed_mount_wq;
 		}
-		sbi->s_def_mount_opt &= EXT4_MOUNT_JOURNAL_CHECKSUM;
+		sbi->s_def_mount_opt &= ~EXT4_MOUNT_JOURNAL_CHECKSUM;
 		clear_opt(sb, JOURNAL_CHECKSUM);
 		clear_opt(sb, DATA_FLAGS);
 		sbi->s_journal = NULL;
@@ -4387,30 +4418,7 @@ no_journal:
 	} else if (ret)
 		goto failed_mount4a;
 
-	/* determine the minimum size of new large inodes, if present */
-	if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE &&
-	    sbi->s_want_extra_isize == 0) {
-		sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
-						     EXT4_GOOD_OLD_INODE_SIZE;
-		if (ext4_has_feature_extra_isize(sb)) {
-			if (sbi->s_want_extra_isize <
-			    le16_to_cpu(es->s_want_extra_isize))
-				sbi->s_want_extra_isize =
-					le16_to_cpu(es->s_want_extra_isize);
-			if (sbi->s_want_extra_isize <
-			    le16_to_cpu(es->s_min_extra_isize))
-				sbi->s_want_extra_isize =
-					le16_to_cpu(es->s_min_extra_isize);
-		}
-	}
-	/* Check if enough inode space is available */
-	if (EXT4_GOOD_OLD_INODE_SIZE + sbi->s_want_extra_isize >
-							sbi->s_inode_size) {
-		sbi->s_want_extra_isize = sizeof(struct ext4_inode) -
-						       EXT4_GOOD_OLD_INODE_SIZE;
-		ext4_msg(sb, KERN_INFO, "required extra inode space not"
-			 "available");
-	}
+	ext4_clamp_want_extra_isize(sb);
 
 	ext4_set_resv_clusters(sb);
 
@@ -5194,6 +5202,8 @@ static int ext4_remount(struct super_blo
 		goto restore_opts;
 	}
 
+	ext4_clamp_want_extra_isize(sb);
+
 	if ((old_opts.s_mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) ^
 	    test_opt(sb, JOURNAL_CHECKSUM)) {
 		ext4_msg(sb, KERN_ERR, "changing journal_checksum "
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ext4/xattr.c linux-libre-5.1.21-gnu/fs/ext4/xattr.c
--- linux-libre-5.1-gnu/fs/ext4/xattr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ext4/xattr.c	2019-07-28 02:28:39.000000000 -0400
@@ -1696,7 +1696,7 @@ static int ext4_xattr_set_entry(struct e
 
 	/* No failures allowed past this point. */
 
-	if (!s->not_found && here->e_value_size && here->e_value_offs) {
+	if (!s->not_found && here->e_value_size && !here->e_value_inum) {
 		/* Remove the old value. */
 		void *first_val = s->base + min_offs;
 		size_t offs = le16_to_cpu(here->e_value_offs);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/checkpoint.c linux-libre-5.1.21-gnu/fs/f2fs/checkpoint.c
--- linux-libre-5.1-gnu/fs/f2fs/checkpoint.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/checkpoint.c	2019-07-28 02:28:39.000000000 -0400
@@ -1009,13 +1009,11 @@ retry:
 	if (inode) {
 		unsigned long cur_ino = inode->i_ino;
 
-		if (is_dir)
-			F2FS_I(inode)->cp_task = current;
+		F2FS_I(inode)->cp_task = current;
 
 		filemap_fdatawrite(inode->i_mapping);
 
-		if (is_dir)
-			F2FS_I(inode)->cp_task = NULL;
+		F2FS_I(inode)->cp_task = NULL;
 
 		iput(inode);
 		/* We need to give cpu to another writers. */
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/data.c linux-libre-5.1.21-gnu/fs/f2fs/data.c
--- linux-libre-5.1-gnu/fs/f2fs/data.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/data.c	2019-07-28 02:28:39.000000000 -0400
@@ -220,12 +220,14 @@ struct block_device *f2fs_target_device(
 	struct block_device *bdev = sbi->sb->s_bdev;
 	int i;
 
-	for (i = 0; i < sbi->s_ndevs; i++) {
-		if (FDEV(i).start_blk <= blk_addr &&
-					FDEV(i).end_blk >= blk_addr) {
-			blk_addr -= FDEV(i).start_blk;
-			bdev = FDEV(i).bdev;
-			break;
+	if (f2fs_is_multi_device(sbi)) {
+		for (i = 0; i < sbi->s_ndevs; i++) {
+			if (FDEV(i).start_blk <= blk_addr &&
+			    FDEV(i).end_blk >= blk_addr) {
+				blk_addr -= FDEV(i).start_blk;
+				bdev = FDEV(i).bdev;
+				break;
+			}
 		}
 	}
 	if (bio) {
@@ -239,6 +241,9 @@ int f2fs_target_device_index(struct f2fs
 {
 	int i;
 
+	if (!f2fs_is_multi_device(sbi))
+		return 0;
+
 	for (i = 0; i < sbi->s_ndevs; i++)
 		if (FDEV(i).start_blk <= blkaddr && FDEV(i).end_blk >= blkaddr)
 			return i;
@@ -2033,7 +2038,8 @@ out:
 	}
 
 	unlock_page(page);
-	if (!S_ISDIR(inode->i_mode) && !IS_NOQUOTA(inode))
+	if (!S_ISDIR(inode->i_mode) && !IS_NOQUOTA(inode) &&
+					!F2FS_I(inode)->cp_task)
 		f2fs_balance_fs(sbi, need_balance_fs);
 
 	if (unlikely(f2fs_cp_error(sbi))) {
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/f2fs.h linux-libre-5.1.21-gnu/fs/f2fs/f2fs.h
--- linux-libre-5.1-gnu/fs/f2fs/f2fs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/f2fs.h	2019-07-28 02:28:39.000000000 -0400
@@ -1366,6 +1366,17 @@ static inline bool time_to_inject(struct
 }
 #endif
 
+/*
+ * Test if the mounted volume is a multi-device volume.
+ *   - For a single regular disk volume, sbi->s_ndevs is 0.
+ *   - For a single zoned disk volume, sbi->s_ndevs is 1.
+ *   - For a multi-device volume, sbi->s_ndevs is always 2 or more.
+ */
+static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
+{
+	return sbi->s_ndevs > 1;
+}
+
 /* For write statistics. Suppose sector size is 512 bytes,
  * and the return value is in kbytes. s is of struct f2fs_sb_info.
  */
@@ -1778,6 +1789,7 @@ enospc:
 	return -ENOSPC;
 }
 
+void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
 						struct inode *inode,
 						block_t count)
@@ -1786,13 +1798,21 @@ static inline void dec_valid_block_count
 
 	spin_lock(&sbi->stat_lock);
 	f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
-	f2fs_bug_on(sbi, inode->i_blocks < sectors);
 	sbi->total_valid_block_count -= (block_t)count;
 	if (sbi->reserved_blocks &&
 		sbi->current_reserved_blocks < sbi->reserved_blocks)
 		sbi->current_reserved_blocks = min(sbi->reserved_blocks,
 					sbi->current_reserved_blocks + count);
 	spin_unlock(&sbi->stat_lock);
+	if (unlikely(inode->i_blocks < sectors)) {
+		f2fs_msg(sbi->sb, KERN_WARNING,
+			"Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
+			inode->i_ino,
+			(unsigned long long)inode->i_blocks,
+			(unsigned long long)sectors);
+		set_sbi_flag(sbi, SBI_NEED_FSCK);
+		return;
+	}
 	f2fs_i_blocks_write(inode, count, false, true);
 }
 
@@ -2009,7 +2029,6 @@ static inline void dec_valid_node_count(
 
 	f2fs_bug_on(sbi, !sbi->total_valid_block_count);
 	f2fs_bug_on(sbi, !sbi->total_valid_node_count);
-	f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
 
 	sbi->total_valid_node_count--;
 	sbi->total_valid_block_count--;
@@ -2019,10 +2038,19 @@ static inline void dec_valid_node_count(
 
 	spin_unlock(&sbi->stat_lock);
 
-	if (is_inode)
+	if (is_inode) {
 		dquot_free_inode(inode);
-	else
+	} else {
+		if (unlikely(inode->i_blocks == 0)) {
+			f2fs_msg(sbi->sb, KERN_WARNING,
+				"Inconsistent i_blocks, ino:%lu, iblocks:%llu",
+				inode->i_ino,
+				(unsigned long long)inode->i_blocks);
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
+			return;
+		}
 		f2fs_i_blocks_write(inode, 1, false, true);
+	}
 }
 
 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
@@ -2559,7 +2587,9 @@ static inline void *inline_xattr_addr(st
 
 static inline int inline_xattr_size(struct inode *inode)
 {
-	return get_inline_xattr_addrs(inode) * sizeof(__le32);
+	if (f2fs_has_inline_xattr(inode))
+		return get_inline_xattr_addrs(inode) * sizeof(__le32);
+	return 0;
 }
 
 static inline int f2fs_has_inline_data(struct inode *inode)
@@ -2806,7 +2836,6 @@ static inline void f2fs_update_iostat(st
 
 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type);
-void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type)
 {
@@ -3615,7 +3644,7 @@ static inline bool f2fs_force_buffered_i
 
 	if (f2fs_post_read_required(inode))
 		return true;
-	if (sbi->s_ndevs)
+	if (f2fs_is_multi_device(sbi))
 		return true;
 	/*
 	 * for blkzoned device, fallback direct IO to buffered IO, so
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/file.c linux-libre-5.1.21-gnu/fs/f2fs/file.c
--- linux-libre-5.1-gnu/fs/f2fs/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -2573,7 +2573,7 @@ static int f2fs_ioc_flush_device(struct
 							sizeof(range)))
 		return -EFAULT;
 
-	if (sbi->s_ndevs <= 1 || sbi->s_ndevs - 1 <= range.dev_num ||
+	if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
 			__is_large_section(sbi)) {
 		f2fs_msg(sbi->sb, KERN_WARNING,
 			"Can't flush %u in %d for segs_per_sec %u != 1\n",
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/gc.c linux-libre-5.1.21-gnu/fs/f2fs/gc.c
--- linux-libre-5.1-gnu/fs/f2fs/gc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/gc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1175,6 +1175,7 @@ static int do_garbage_collect(struct f2f
 				"type [%d, %d] in SSA and SIT",
 				segno, type, GET_SUM_TYPE((&sum->footer)));
 			set_sbi_flag(sbi, SBI_NEED_FSCK);
+			f2fs_stop_checkpoint(sbi, false);
 			goto skip;
 		}
 
@@ -1346,7 +1347,7 @@ void f2fs_build_gc_manager(struct f2fs_s
 	sbi->gc_pin_file_threshold = DEF_GC_FAILED_PINNED_FILES;
 
 	/* give warm/cold data area from slower device */
-	if (sbi->s_ndevs && !__is_large_section(sbi))
+	if (f2fs_is_multi_device(sbi) && !__is_large_section(sbi))
 		SIT_I(sbi)->last_victim[ALLOC_NEXT] =
 				GET_SEGNO(sbi, FDEV(0).end_blk) + 1;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/inline.c linux-libre-5.1.21-gnu/fs/f2fs/inline.c
--- linux-libre-5.1-gnu/fs/f2fs/inline.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/inline.c	2019-07-28 02:28:39.000000000 -0400
@@ -420,6 +420,14 @@ static int f2fs_move_inline_dirents(stru
 	stat_dec_inline_dir(dir);
 	clear_inode_flag(dir, FI_INLINE_DENTRY);
 
+	/*
+	 * should retrieve reserved space which was used to keep
+	 * inline_dentry's structure for backward compatibility.
+	 */
+	if (!f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(dir)) &&
+			!f2fs_has_inline_xattr(dir))
+		F2FS_I(dir)->i_inline_xattr_size = 0;
+
 	f2fs_i_depth_write(dir, 1);
 	if (i_size_read(dir) < PAGE_SIZE)
 		f2fs_i_size_write(dir, PAGE_SIZE);
@@ -501,6 +509,15 @@ static int f2fs_move_rehashed_dirents(st
 
 	stat_dec_inline_dir(dir);
 	clear_inode_flag(dir, FI_INLINE_DENTRY);
+
+	/*
+	 * should retrieve reserved space which was used to keep
+	 * inline_dentry's structure for backward compatibility.
+	 */
+	if (!f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(dir)) &&
+			!f2fs_has_inline_xattr(dir))
+		F2FS_I(dir)->i_inline_xattr_size = 0;
+
 	kvfree(backup_dentry);
 	return 0;
 recover:
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/inode.c linux-libre-5.1.21-gnu/fs/f2fs/inode.c
--- linux-libre-5.1-gnu/fs/f2fs/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -177,8 +177,8 @@ bool f2fs_inode_chksum_verify(struct f2f
 
 	if (provided != calculated)
 		f2fs_msg(sbi->sb, KERN_WARNING,
-			"checksum invalid, ino = %x, %x vs. %x",
-			ino_of_node(page), provided, calculated);
+			"checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
+			page->index, ino_of_node(page), provided, calculated);
 
 	return provided == calculated;
 }
@@ -488,6 +488,7 @@ make_now:
 	return inode;
 
 bad_inode:
+	f2fs_inode_synced(inode);
 	iget_failed(inode);
 	trace_f2fs_iget_exit(inode, ret);
 	return ERR_PTR(ret);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/node.c linux-libre-5.1.21-gnu/fs/f2fs/node.c
--- linux-libre-5.1-gnu/fs/f2fs/node.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/node.c	2019-07-28 02:28:39.000000000 -0400
@@ -1179,8 +1179,14 @@ int f2fs_remove_inode_page(struct inode
 		f2fs_put_dnode(&dn);
 		return -EIO;
 	}
-	f2fs_bug_on(F2FS_I_SB(inode),
-			inode->i_blocks != 0 && inode->i_blocks != 8);
+
+	if (unlikely(inode->i_blocks != 0 && inode->i_blocks != 8)) {
+		f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
+			"Inconsistent i_blocks, ino:%lu, iblocks:%llu",
+			inode->i_ino,
+			(unsigned long long)inode->i_blocks);
+		set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
+	}
 
 	/* will put inode & node pages */
 	err = truncate_node(&dn);
@@ -1275,9 +1281,10 @@ static int read_node_page(struct page *p
 	int err;
 
 	if (PageUptodate(page)) {
-#ifdef CONFIG_F2FS_CHECK_FS
-		f2fs_bug_on(sbi, !f2fs_inode_chksum_verify(sbi, page));
-#endif
+		if (!f2fs_inode_chksum_verify(sbi, page)) {
+			ClearPageUptodate(page);
+			return -EBADMSG;
+		}
 		return LOCKED_PAGE;
 	}
 
@@ -2076,6 +2083,9 @@ static bool add_free_nid(struct f2fs_sb_
 	if (unlikely(nid == 0))
 		return false;
 
+	if (unlikely(f2fs_check_nid_range(sbi, nid)))
+		return false;
+
 	i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS);
 	i->nid = nid;
 	i->state = FREE_NID;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/recovery.c linux-libre-5.1.21-gnu/fs/f2fs/recovery.c
--- linux-libre-5.1-gnu/fs/f2fs/recovery.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/recovery.c	2019-07-28 02:28:39.000000000 -0400
@@ -325,8 +325,10 @@ static int find_fsync_dnodes(struct f2fs
 			break;
 		}
 
-		if (!is_recoverable_dnode(page))
+		if (!is_recoverable_dnode(page)) {
+			f2fs_put_page(page, 1);
 			break;
+		}
 
 		if (!is_fsync_dnode(page))
 			goto next;
@@ -338,8 +340,10 @@ static int find_fsync_dnodes(struct f2fs
 			if (!check_only &&
 					IS_INODE(page) && is_dent_dnode(page)) {
 				err = f2fs_recover_inode_page(sbi, page);
-				if (err)
+				if (err) {
+					f2fs_put_page(page, 1);
 					break;
+				}
 				quota_inode = true;
 			}
 
@@ -355,6 +359,7 @@ static int find_fsync_dnodes(struct f2fs
 					err = 0;
 					goto next;
 				}
+				f2fs_put_page(page, 1);
 				break;
 			}
 		}
@@ -370,6 +375,7 @@ next:
 				"%s: detect looped node chain, "
 				"blkaddr:%u, next:%u",
 				__func__, blkaddr, next_blkaddr_of_node(page));
+			f2fs_put_page(page, 1);
 			err = -EINVAL;
 			break;
 		}
@@ -380,7 +386,6 @@ next:
 
 		f2fs_ra_meta_pages_cond(sbi, blkaddr);
 	}
-	f2fs_put_page(page, 1);
 	return err;
 }
 
@@ -546,7 +551,15 @@ retry_dn:
 		goto err;
 
 	f2fs_bug_on(sbi, ni.ino != ino_of_node(page));
-	f2fs_bug_on(sbi, ofs_of_node(dn.node_page) != ofs_of_node(page));
+
+	if (ofs_of_node(dn.node_page) != ofs_of_node(page)) {
+		f2fs_msg(sbi->sb, KERN_WARNING,
+			"Inconsistent ofs_of_node, ino:%lu, ofs:%u, %u",
+			inode->i_ino, ofs_of_node(dn.node_page),
+			ofs_of_node(page));
+		err = -EFAULT;
+		goto err;
+	}
 
 	for (; start < end; start++, dn.ofs_in_node++) {
 		block_t src, dest;
@@ -666,8 +679,10 @@ static int recover_data(struct f2fs_sb_i
 		 */
 		if (IS_INODE(page)) {
 			err = recover_inode(entry->inode, page);
-			if (err)
+			if (err) {
+				f2fs_put_page(page, 1);
 				break;
+			}
 		}
 		if (entry->last_dentry == blkaddr) {
 			err = recover_dentry(entry->inode, page, dir_list);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/segment.c linux-libre-5.1.21-gnu/fs/f2fs/segment.c
--- linux-libre-5.1-gnu/fs/f2fs/segment.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/segment.c	2019-07-28 02:28:39.000000000 -0400
@@ -580,7 +580,7 @@ static int submit_flush_wait(struct f2fs
 	int ret = 0;
 	int i;
 
-	if (!sbi->s_ndevs)
+	if (!f2fs_is_multi_device(sbi))
 		return __submit_flush_wait(sbi, sbi->sb->s_bdev);
 
 	for (i = 0; i < sbi->s_ndevs; i++) {
@@ -648,7 +648,8 @@ int f2fs_issue_flush(struct f2fs_sb_info
 		return ret;
 	}
 
-	if (atomic_inc_return(&fcc->queued_flush) == 1 || sbi->s_ndevs > 1) {
+	if (atomic_inc_return(&fcc->queued_flush) == 1 ||
+	    f2fs_is_multi_device(sbi)) {
 		ret = submit_flush_wait(sbi, ino);
 		atomic_dec(&fcc->queued_flush);
 
@@ -754,7 +755,7 @@ int f2fs_flush_device_cache(struct f2fs_
 {
 	int ret = 0, i;
 
-	if (!sbi->s_ndevs)
+	if (!f2fs_is_multi_device(sbi))
 		return 0;
 
 	for (i = 1; i < sbi->s_ndevs; i++) {
@@ -1369,7 +1370,7 @@ static int __queue_discard_cmd(struct f2
 
 	trace_f2fs_queue_discard(bdev, blkstart, blklen);
 
-	if (sbi->s_ndevs) {
+	if (f2fs_is_multi_device(sbi)) {
 		int devi = f2fs_target_device_index(sbi, blkstart);
 
 		blkstart -= FDEV(devi).start_blk;
@@ -1732,7 +1733,7 @@ static int __f2fs_issue_discard_zone(str
 	block_t lblkstart = blkstart;
 	int devi = 0;
 
-	if (sbi->s_ndevs) {
+	if (f2fs_is_multi_device(sbi)) {
 		devi = f2fs_target_device_index(sbi, blkstart);
 		blkstart -= FDEV(devi).start_blk;
 	}
@@ -3089,7 +3090,7 @@ static void update_device_state(struct f
 	struct f2fs_sb_info *sbi = fio->sbi;
 	unsigned int devidx;
 
-	if (!sbi->s_ndevs)
+	if (!f2fs_is_multi_device(sbi))
 		return;
 
 	devidx = f2fs_target_device_index(sbi, fio->new_blkaddr);
@@ -3187,13 +3188,18 @@ int f2fs_inplace_write_data(struct f2fs_
 {
 	int err;
 	struct f2fs_sb_info *sbi = fio->sbi;
+	unsigned int segno;
 
 	fio->new_blkaddr = fio->old_blkaddr;
 	/* i/o temperature is needed for passing down write hints */
 	__get_segment_type(fio);
 
-	f2fs_bug_on(sbi, !IS_DATASEG(get_seg_entry(sbi,
-			GET_SEGNO(sbi, fio->new_blkaddr))->type));
+	segno = GET_SEGNO(sbi, fio->new_blkaddr);
+
+	if (!IS_DATASEG(get_seg_entry(sbi, segno)->type)) {
+		set_sbi_flag(sbi, SBI_NEED_FSCK);
+		return -EFAULT;
+	}
 
 	stat_inc_inplace_blocks(fio->sbi);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/segment.h linux-libre-5.1.21-gnu/fs/f2fs/segment.h
--- linux-libre-5.1-gnu/fs/f2fs/segment.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/segment.h	2019-07-28 02:28:39.000000000 -0400
@@ -672,7 +672,6 @@ static inline void verify_block_addr(str
 static inline int check_block_count(struct f2fs_sb_info *sbi,
 		int segno, struct f2fs_sit_entry *raw_sit)
 {
-#ifdef CONFIG_F2FS_CHECK_FS
 	bool is_valid  = test_bit_le(0, raw_sit->valid_map) ? true : false;
 	int valid_blocks = 0;
 	int cur_pos = 0, next_pos;
@@ -699,7 +698,7 @@ static inline int check_block_count(stru
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		return -EINVAL;
 	}
-#endif
+
 	/* check segment usage, and check boundary of a given segment number */
 	if (unlikely(GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg
 					|| segno > TOTAL_SEGS(sbi) - 1)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/xattr.c linux-libre-5.1.21-gnu/fs/f2fs/xattr.c
--- linux-libre-5.1-gnu/fs/f2fs/xattr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/xattr.c	2019-07-28 02:28:39.000000000 -0400
@@ -202,12 +202,17 @@ static inline const struct xattr_handler
 	return handler;
 }
 
-static struct f2fs_xattr_entry *__find_xattr(void *base_addr, int index,
-					size_t len, const char *name)
+static struct f2fs_xattr_entry *__find_xattr(void *base_addr,
+				void *last_base_addr, int index,
+				size_t len, const char *name)
 {
 	struct f2fs_xattr_entry *entry;
 
 	list_for_each_xattr(entry, base_addr) {
+		if ((void *)(entry) + sizeof(__u32) > last_base_addr ||
+			(void *)XATTR_NEXT_ENTRY(entry) > last_base_addr)
+			return NULL;
+
 		if (entry->e_name_index != index)
 			continue;
 		if (entry->e_name_len != len)
@@ -297,20 +302,22 @@ static int lookup_all_xattrs(struct inod
 				const char *name, struct f2fs_xattr_entry **xe,
 				void **base_addr, int *base_size)
 {
-	void *cur_addr, *txattr_addr, *last_addr = NULL;
+	void *cur_addr, *txattr_addr, *last_txattr_addr;
+	void *last_addr = NULL;
 	nid_t xnid = F2FS_I(inode)->i_xattr_nid;
-	unsigned int size = xnid ? VALID_XATTR_BLOCK_SIZE : 0;
 	unsigned int inline_size = inline_xattr_size(inode);
 	int err = 0;
 
-	if (!size && !inline_size)
+	if (!xnid && !inline_size)
 		return -ENODATA;
 
-	*base_size = inline_size + size + XATTR_PADDING_SIZE;
+	*base_size = XATTR_SIZE(xnid, inode) + XATTR_PADDING_SIZE;
 	txattr_addr = f2fs_kzalloc(F2FS_I_SB(inode), *base_size, GFP_NOFS);
 	if (!txattr_addr)
 		return -ENOMEM;
 
+	last_txattr_addr = (void *)txattr_addr + XATTR_SIZE(xnid, inode);
+
 	/* read from inline xattr */
 	if (inline_size) {
 		err = read_inline_xattr(inode, ipage, txattr_addr);
@@ -337,7 +344,11 @@ static int lookup_all_xattrs(struct inod
 	else
 		cur_addr = txattr_addr;
 
-	*xe = __find_xattr(cur_addr, index, len, name);
+	*xe = __find_xattr(cur_addr, last_txattr_addr, index, len, name);
+	if (!*xe) {
+		err = -EFAULT;
+		goto out;
+	}
 check:
 	if (IS_XATTR_LAST_ENTRY(*xe)) {
 		err = -ENODATA;
@@ -581,7 +592,8 @@ static int __f2fs_setxattr(struct inode
 			struct page *ipage, int flags)
 {
 	struct f2fs_xattr_entry *here, *last;
-	void *base_addr;
+	void *base_addr, *last_base_addr;
+	nid_t xnid = F2FS_I(inode)->i_xattr_nid;
 	int found, newsize;
 	size_t len;
 	__u32 new_hsize;
@@ -605,8 +617,14 @@ static int __f2fs_setxattr(struct inode
 	if (error)
 		return error;
 
+	last_base_addr = (void *)base_addr + XATTR_SIZE(xnid, inode);
+
 	/* find entry with wanted name. */
-	here = __find_xattr(base_addr, index, len, name);
+	here = __find_xattr(base_addr, last_base_addr, index, len, name);
+	if (!here) {
+		error = -EFAULT;
+		goto exit;
+	}
 
 	found = IS_XATTR_LAST_ENTRY(here) ? 0 : 1;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/f2fs/xattr.h linux-libre-5.1.21-gnu/fs/f2fs/xattr.h
--- linux-libre-5.1-gnu/fs/f2fs/xattr.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/f2fs/xattr.h	2019-07-28 02:28:39.000000000 -0400
@@ -71,6 +71,8 @@ struct f2fs_xattr_entry {
 				entry = XATTR_NEXT_ENTRY(entry))
 #define VALID_XATTR_BLOCK_SIZE	(PAGE_SIZE - sizeof(struct node_footer))
 #define XATTR_PADDING_SIZE	(sizeof(__u32))
+#define XATTR_SIZE(x,i)		(((x) ? VALID_XATTR_BLOCK_SIZE : 0) +	\
+						(inline_xattr_size(i)))
 #define MIN_OFFSET(i)		XATTR_ALIGN(inline_xattr_size(i) +	\
 						VALID_XATTR_BLOCK_SIZE)
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/fat/file.c linux-libre-5.1.21-gnu/fs/fat/file.c
--- linux-libre-5.1-gnu/fs/fat/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/fat/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -193,12 +193,17 @@ static int fat_file_release(struct inode
 int fat_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
 {
 	struct inode *inode = filp->f_mapping->host;
-	int res, err;
+	int err;
+
+	err = __generic_file_fsync(filp, start, end, datasync);
+	if (err)
+		return err;
 
-	res = generic_file_fsync(filp, start, end, datasync);
 	err = sync_mapping_buffers(MSDOS_SB(inode->i_sb)->fat_inode->i_mapping);
+	if (err)
+		return err;
 
-	return res ? res : err;
+	return blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
 }
 
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/fs-writeback.c linux-libre-5.1.21-gnu/fs/fs-writeback.c
--- linux-libre-5.1-gnu/fs/fs-writeback.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/fs-writeback.c	2019-07-28 02:28:39.000000000 -0400
@@ -523,8 +523,6 @@ static void inode_switch_wbs(struct inod
 
 	isw->inode = inode;
 
-	atomic_inc(&isw_nr_in_flight);
-
 	/*
 	 * In addition to synchronizing among switchers, I_WB_SWITCH tells
 	 * the RCU protected stat update paths to grab the i_page
@@ -532,6 +530,9 @@ static void inode_switch_wbs(struct inod
 	 * Let's continue after I_WB_SWITCH is guaranteed to be visible.
 	 */
 	call_rcu(&isw->rcu_head, inode_switch_wbs_rcu_fn);
+
+	atomic_inc(&isw_nr_in_flight);
+
 	goto out_unlock;
 
 out_free:
@@ -713,6 +714,7 @@ void wbc_detach_inode(struct writeback_c
 void wbc_account_io(struct writeback_control *wbc, struct page *page,
 		    size_t bytes)
 {
+	struct cgroup_subsys_state *css;
 	int id;
 
 	/*
@@ -724,7 +726,12 @@ void wbc_account_io(struct writeback_con
 	if (!wbc->wb)
 		return;
 
-	id = mem_cgroup_css_from_page(page)->id;
+	css = mem_cgroup_css_from_page(page);
+	/* dead cgroups shouldn't contribute to inode ownership arbitration */
+	if (!(css->flags & CSS_ONLINE))
+		return;
+
+	id = css->id;
 
 	if (id == wbc->wb_id) {
 		wbc->wb_bytes += bytes;
@@ -901,7 +908,11 @@ restart:
 void cgroup_writeback_umount(void)
 {
 	if (atomic_read(&isw_nr_in_flight)) {
-		synchronize_rcu();
+		/*
+		 * Use rcu_barrier() to wait for all pending callbacks to
+		 * ensure that all in-flight wb switches are in the workqueue.
+		 */
+		rcu_barrier();
 		flush_workqueue(isw_wq);
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/fuse/dev.c linux-libre-5.1.21-gnu/fs/fuse/dev.c
--- linux-libre-5.1-gnu/fs/fuse/dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/fuse/dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -1749,7 +1749,7 @@ static int fuse_retrieve(struct fuse_con
 	offset = outarg->offset & ~PAGE_MASK;
 	file_size = i_size_read(inode);
 
-	num = outarg->size;
+	num = min(outarg->size, fc->max_write);
 	if (outarg->offset > file_size)
 		num = 0;
 	else if (outarg->offset + num > file_size)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/fuse/file.c linux-libre-5.1.21-gnu/fs/fuse/file.c
--- linux-libre-5.1-gnu/fs/fuse/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/fuse/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -178,7 +178,9 @@ void fuse_finish_open(struct inode *inod
 
 	if (!(ff->open_flags & FOPEN_KEEP_CACHE))
 		invalidate_inode_pages2(inode->i_mapping);
-	if (ff->open_flags & FOPEN_NONSEEKABLE)
+	if (ff->open_flags & FOPEN_STREAM)
+		stream_open(inode, file);
+	else if (ff->open_flags & FOPEN_NONSEEKABLE)
 		nonseekable_open(inode, file);
 	if (fc->atomic_o_trunc && (file->f_flags & O_TRUNC)) {
 		struct fuse_inode *fi = get_fuse_inode(inode);
@@ -1586,7 +1588,7 @@ __acquires(fi->lock)
 {
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	struct fuse_inode *fi = get_fuse_inode(inode);
-	size_t crop = i_size_read(inode);
+	loff_t crop = i_size_read(inode);
 	struct fuse_req *req;
 
 	while (fi->writectr >= 0 && !list_empty(&fi->queued_writes)) {
@@ -3044,6 +3046,13 @@ static long fuse_file_fallocate(struct f
 		}
 	}
 
+	if (!(mode & FALLOC_FL_KEEP_SIZE) &&
+	    offset + length > i_size_read(inode)) {
+		err = inode_newsize_ok(inode, offset + length);
+		if (err)
+			goto out;
+	}
+
 	if (!(mode & FALLOC_FL_KEEP_SIZE))
 		set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
 
@@ -3089,6 +3098,7 @@ static ssize_t fuse_copy_file_range(stru
 {
 	struct fuse_file *ff_in = file_in->private_data;
 	struct fuse_file *ff_out = file_out->private_data;
+	struct inode *inode_in = file_inode(file_in);
 	struct inode *inode_out = file_inode(file_out);
 	struct fuse_inode *fi_out = get_fuse_inode(inode_out);
 	struct fuse_conn *fc = ff_in->fc;
@@ -3112,6 +3122,17 @@ static ssize_t fuse_copy_file_range(stru
 	if (fc->no_copy_file_range)
 		return -EOPNOTSUPP;
 
+	if (fc->writeback_cache) {
+		inode_lock(inode_in);
+		err = filemap_write_and_wait_range(inode_in->i_mapping,
+						   pos_in, pos_in + len);
+		if (!err)
+			fuse_sync_writes(inode_in);
+		inode_unlock(inode_in);
+		if (err)
+			return err;
+	}
+
 	inode_lock(inode_out);
 
 	if (fc->writeback_cache) {
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/gfs2/glock.c linux-libre-5.1.21-gnu/fs/gfs2/glock.c
--- linux-libre-5.1-gnu/fs/gfs2/glock.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/gfs2/glock.c	2019-07-28 02:28:39.000000000 -0400
@@ -140,6 +140,7 @@ void gfs2_glock_free(struct gfs2_glock *
 {
 	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
 
+	BUG_ON(atomic_read(&gl->gl_revokes));
 	rhashtable_remove_fast(&gl_hash_table, &gl->gl_node, ht_parms);
 	smp_mb();
 	wake_up_glock(gl);
@@ -183,15 +184,19 @@ static int demote_ok(const struct gfs2_g
 
 void gfs2_glock_add_to_lru(struct gfs2_glock *gl)
 {
+	if (!(gl->gl_ops->go_flags & GLOF_LRU))
+		return;
+
 	spin_lock(&lru_lock);
 
-	if (!list_empty(&gl->gl_lru))
-		list_del_init(&gl->gl_lru);
-	else
+	list_del(&gl->gl_lru);
+	list_add_tail(&gl->gl_lru, &lru_list);
+
+	if (!test_bit(GLF_LRU, &gl->gl_flags)) {
+		set_bit(GLF_LRU, &gl->gl_flags);
 		atomic_inc(&lru_count);
+	}
 
-	list_add_tail(&gl->gl_lru, &lru_list);
-	set_bit(GLF_LRU, &gl->gl_flags);
 	spin_unlock(&lru_lock);
 }
 
@@ -201,7 +206,7 @@ static void gfs2_glock_remove_from_lru(s
 		return;
 
 	spin_lock(&lru_lock);
-	if (!list_empty(&gl->gl_lru)) {
+	if (test_bit(GLF_LRU, &gl->gl_flags)) {
 		list_del_init(&gl->gl_lru);
 		atomic_dec(&lru_count);
 		clear_bit(GLF_LRU, &gl->gl_flags);
@@ -1159,8 +1164,7 @@ void gfs2_glock_dq(struct gfs2_holder *g
 		    !test_bit(GLF_DEMOTE, &gl->gl_flags))
 			fast_path = 1;
 	}
-	if (!test_bit(GLF_LFLUSH, &gl->gl_flags) && demote_ok(gl) &&
-	    (glops->go_flags & GLOF_LRU))
+	if (!test_bit(GLF_LFLUSH, &gl->gl_flags) && demote_ok(gl))
 		gfs2_glock_add_to_lru(gl);
 
 	trace_gfs2_glock_queue(gh, 0);
@@ -1456,6 +1460,7 @@ __acquires(&lru_lock)
 		if (!spin_trylock(&gl->gl_lockref.lock)) {
 add_back_to_lru:
 			list_add(&gl->gl_lru, &lru_list);
+			set_bit(GLF_LRU, &gl->gl_flags);
 			atomic_inc(&lru_count);
 			continue;
 		}
@@ -1463,7 +1468,6 @@ add_back_to_lru:
 			spin_unlock(&gl->gl_lockref.lock);
 			goto add_back_to_lru;
 		}
-		clear_bit(GLF_LRU, &gl->gl_flags);
 		gl->gl_lockref.count++;
 		if (demote_ok(gl))
 			handle_callback(gl, LM_ST_UNLOCKED, 0, false);
@@ -1498,6 +1502,7 @@ static long gfs2_scan_glock_lru(int nr)
 		if (!test_bit(GLF_LOCK, &gl->gl_flags)) {
 			list_move(&gl->gl_lru, &dispose);
 			atomic_dec(&lru_count);
+			clear_bit(GLF_LRU, &gl->gl_flags);
 			freed++;
 			continue;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/gfs2/incore.h linux-libre-5.1.21-gnu/fs/gfs2/incore.h
--- linux-libre-5.1-gnu/fs/gfs2/incore.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/gfs2/incore.h	2019-07-28 02:28:39.000000000 -0400
@@ -621,6 +621,7 @@ enum {
 	SDF_SKIP_DLM_UNLOCK	= 8,
 	SDF_FORCE_AIL_FLUSH     = 9,
 	SDF_AIL1_IO_ERROR	= 10,
+	SDF_FS_FROZEN           = 11,
 };
 
 enum gfs2_freeze_state {
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/gfs2/lock_dlm.c linux-libre-5.1.21-gnu/fs/gfs2/lock_dlm.c
--- linux-libre-5.1-gnu/fs/gfs2/lock_dlm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/gfs2/lock_dlm.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,9 +31,10 @@
  * @delta is the difference between the current rtt sample and the
  * running average srtt. We add 1/8 of that to the srtt in order to
  * update the current srtt estimate. The variance estimate is a bit
- * more complicated. We subtract the abs value of the @delta from
- * the current variance estimate and add 1/4 of that to the running
- * total.
+ * more complicated. We subtract the current variance estimate from
+ * the abs value of the @delta and add 1/4 of that to the running
+ * total.  That's equivalent to 3/4 of the current variance
+ * estimate plus 1/4 of the abs of @delta.
  *
  * Note that the index points at the array entry containing the smoothed
  * mean value, and the variance is always in the following entry
@@ -49,7 +50,7 @@ static inline void gfs2_update_stats(str
 	s64 delta = sample - s->stats[index];
 	s->stats[index] += (delta >> 3);
 	index++;
-	s->stats[index] += ((abs(delta) - s->stats[index]) >> 2);
+	s->stats[index] += (s64)(abs(delta) - s->stats[index]) >> 2;
 }
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/gfs2/log.c linux-libre-5.1.21-gnu/fs/gfs2/log.c
--- linux-libre-5.1-gnu/fs/gfs2/log.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/gfs2/log.c	2019-07-28 02:28:39.000000000 -0400
@@ -606,7 +606,8 @@ void gfs2_add_revoke(struct gfs2_sbd *sd
 	gfs2_remove_from_ail(bd); /* drops ref on bh */
 	bd->bd_bh = NULL;
 	sdp->sd_log_num_revoke++;
-	atomic_inc(&gl->gl_revokes);
+	if (atomic_inc_return(&gl->gl_revokes) == 1)
+		gfs2_glock_hold(gl);
 	set_bit(GLF_LFLUSH, &gl->gl_flags);
 	list_add(&bd->bd_list, &sdp->sd_log_le_revoke);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/gfs2/lops.c linux-libre-5.1.21-gnu/fs/gfs2/lops.c
--- linux-libre-5.1-gnu/fs/gfs2/lops.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/gfs2/lops.c	2019-07-28 02:28:39.000000000 -0400
@@ -669,8 +669,10 @@ static void revoke_lo_after_commit(struc
 		bd = list_entry(head->next, struct gfs2_bufdata, bd_list);
 		list_del_init(&bd->bd_list);
 		gl = bd->bd_gl;
-		atomic_dec(&gl->gl_revokes);
-		clear_bit(GLF_LFLUSH, &gl->gl_flags);
+		if (atomic_dec_return(&gl->gl_revokes) == 0) {
+			clear_bit(GLF_LFLUSH, &gl->gl_flags);
+			gfs2_glock_queue_put(gl);
+		}
 		kmem_cache_free(gfs2_bufdata_cachep, bd);
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/gfs2/super.c linux-libre-5.1.21-gnu/fs/gfs2/super.c
--- linux-libre-5.1-gnu/fs/gfs2/super.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/gfs2/super.c	2019-07-28 02:28:39.000000000 -0400
@@ -973,8 +973,7 @@ void gfs2_freeze_func(struct work_struct
 	if (error) {
 		printk(KERN_INFO "GFS2: couldn't get freeze lock : %d\n", error);
 		gfs2_assert_withdraw(sdp, 0);
-	}
-	else {
+	} else {
 		atomic_set(&sdp->sd_freeze_state, SFS_UNFROZEN);
 		error = thaw_super(sb);
 		if (error) {
@@ -987,6 +986,8 @@ void gfs2_freeze_func(struct work_struct
 		gfs2_glock_dq_uninit(&freeze_gh);
 	}
 	deactivate_super(sb);
+	clear_bit_unlock(SDF_FS_FROZEN, &sdp->sd_flags);
+	wake_up_bit(&sdp->sd_flags, SDF_FS_FROZEN);
 	return;
 }
 
@@ -1029,6 +1030,7 @@ static int gfs2_freeze(struct super_bloc
 		msleep(1000);
 	}
 	error = 0;
+	set_bit(SDF_FS_FROZEN, &sdp->sd_flags);
 out:
 	mutex_unlock(&sdp->sd_freeze_mutex);
 	return error;
@@ -1053,7 +1055,7 @@ static int gfs2_unfreeze(struct super_bl
 
 	gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
 	mutex_unlock(&sdp->sd_freeze_mutex);
-	return 0;
+	return wait_on_bit(&sdp->sd_flags, SDF_FS_FROZEN, TASK_INTERRUPTIBLE);
 }
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/hugetlbfs/inode.c linux-libre-5.1.21-gnu/fs/hugetlbfs/inode.c
--- linux-libre-5.1-gnu/fs/hugetlbfs/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/hugetlbfs/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -440,9 +440,7 @@ static void remove_inode_hugepages(struc
 			u32 hash;
 
 			index = page->index;
-			hash = hugetlb_fault_mutex_hash(h, current->mm,
-							&pseudo_vma,
-							mapping, index, 0);
+			hash = hugetlb_fault_mutex_hash(h, mapping, index, 0);
 			mutex_lock(&hugetlb_fault_mutex_table[hash]);
 
 			/*
@@ -639,8 +637,7 @@ static long hugetlbfs_fallocate(struct f
 		addr = index * hpage_size;
 
 		/* mutex taken here, fault path and hole punch */
-		hash = hugetlb_fault_mutex_hash(h, mm, &pseudo_vma, mapping,
-						index, addr);
+		hash = hugetlb_fault_mutex_hash(h, mapping, index, addr);
 		mutex_lock(&hugetlb_fault_mutex_table[hash]);
 
 		/* See if already present in mapping to avoid alloc/free */
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/inode.c linux-libre-5.1.21-gnu/fs/inode.c
--- linux-libre-5.1-gnu/fs/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -349,7 +349,7 @@ EXPORT_SYMBOL(inc_nlink);
 
 static void __address_space_init_once(struct address_space *mapping)
 {
-	xa_init_flags(&mapping->i_pages, XA_FLAGS_LOCK_IRQ);
+	xa_init_flags(&mapping->i_pages, XA_FLAGS_LOCK_IRQ | XA_FLAGS_ACCOUNT);
 	init_rwsem(&mapping->i_mmap_rwsem);
 	INIT_LIST_HEAD(&mapping->private_list);
 	spin_lock_init(&mapping->private_lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/internal.h linux-libre-5.1.21-gnu/fs/internal.h
--- linux-libre-5.1-gnu/fs/internal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/internal.h	2019-07-28 02:28:39.000000000 -0400
@@ -89,9 +89,7 @@ extern int sb_prepare_remount_readonly(s
 
 extern void __init mnt_init(void);
 
-extern int __mnt_want_write(struct vfsmount *);
 extern int __mnt_want_write_file(struct file *);
-extern void __mnt_drop_write(struct vfsmount *);
 extern void __mnt_drop_write_file(struct file *);
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/io_uring.c linux-libre-5.1.21-gnu/fs/io_uring.c
--- linux-libre-5.1-gnu/fs/io_uring.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/io_uring.c	2019-07-28 02:28:39.000000000 -0400
@@ -533,6 +533,7 @@ static struct io_kiocb *io_get_req(struc
 		state->cur_req++;
 	}
 
+	req->file = NULL;
 	req->ctx = ctx;
 	req->flags = 0;
 	/* one is dropped after submission, the other at completion */
@@ -1684,10 +1685,8 @@ static int io_req_set_file(struct io_rin
 	flags = READ_ONCE(s->sqe->flags);
 	fd = READ_ONCE(s->sqe->fd);
 
-	if (!io_op_needs_file(s->sqe)) {
-		req->file = NULL;
+	if (!io_op_needs_file(s->sqe))
 		return 0;
-	}
 
 	if (flags & IOSQE_FIXED_FILE) {
 		if (unlikely(!ctx->user_files ||
@@ -2097,7 +2096,7 @@ static int io_cqring_wait(struct io_ring
 	finish_wait(&ctx->wait, &wait);
 
 	if (sig)
-		restore_user_sigmask(sig, &sigsaved);
+		restore_user_sigmask(sig, &sigsaved, ret == -EINTR);
 
 	return READ_ONCE(ring->r.head) == READ_ONCE(ring->r.tail) ? ret : 0;
 }
@@ -2330,11 +2329,12 @@ static int io_sq_offload_start(struct io
 			ctx->sq_thread_idle = HZ;
 
 		if (p->flags & IORING_SETUP_SQ_AFF) {
-			int cpu = array_index_nospec(p->sq_thread_cpu,
-							nr_cpu_ids);
+			int cpu = p->sq_thread_cpu;
 
 			ret = -EINVAL;
-			if (!cpu_possible(cpu))
+			if (cpu >= nr_cpu_ids)
+				goto err;
+			if (!cpu_online(cpu))
 				goto err;
 
 			ctx->sqo_thread = kthread_create_on_cpu(io_sq_thread,
@@ -2505,7 +2505,7 @@ static int io_sqe_buffer_register(struct
 
 		ret = io_copy_iov(ctx, &iov, arg, i);
 		if (ret)
-			break;
+			goto err;
 
 		/*
 		 * Don't impose further limits on the size and buffer
@@ -2632,8 +2632,10 @@ static void io_ring_ctx_free(struct io_r
 	io_sqe_files_unregister(ctx);
 
 #if defined(CONFIG_UNIX)
-	if (ctx->ring_sock)
+	if (ctx->ring_sock) {
+		ctx->ring_sock->file = NULL; /* so that iput() is called */
 		sock_release(ctx->ring_sock);
+	}
 #endif
 
 	io_mem_free(ctx->sq_ring);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/jbd2/commit.c linux-libre-5.1.21-gnu/fs/jbd2/commit.c
--- linux-libre-5.1-gnu/fs/jbd2/commit.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/jbd2/commit.c	2019-07-28 02:28:39.000000000 -0400
@@ -187,14 +187,15 @@ static int journal_wait_on_commit_record
  * use writepages() because with dealyed allocation we may be doing
  * block allocation in writepages().
  */
-static int journal_submit_inode_data_buffers(struct address_space *mapping)
+static int journal_submit_inode_data_buffers(struct address_space *mapping,
+		loff_t dirty_start, loff_t dirty_end)
 {
 	int ret;
 	struct writeback_control wbc = {
 		.sync_mode =  WB_SYNC_ALL,
 		.nr_to_write = mapping->nrpages * 2,
-		.range_start = 0,
-		.range_end = i_size_read(mapping->host),
+		.range_start = dirty_start,
+		.range_end = dirty_end,
 	};
 
 	ret = generic_writepages(mapping, &wbc);
@@ -218,6 +219,9 @@ static int journal_submit_data_buffers(j
 
 	spin_lock(&journal->j_list_lock);
 	list_for_each_entry(jinode, &commit_transaction->t_inode_list, i_list) {
+		loff_t dirty_start = jinode->i_dirty_start;
+		loff_t dirty_end = jinode->i_dirty_end;
+
 		if (!(jinode->i_flags & JI_WRITE_DATA))
 			continue;
 		mapping = jinode->i_vfs_inode->i_mapping;
@@ -230,7 +234,8 @@ static int journal_submit_data_buffers(j
 		 * only allocated blocks here.
 		 */
 		trace_jbd2_submit_inode_data(jinode->i_vfs_inode);
-		err = journal_submit_inode_data_buffers(mapping);
+		err = journal_submit_inode_data_buffers(mapping, dirty_start,
+				dirty_end);
 		if (!ret)
 			ret = err;
 		spin_lock(&journal->j_list_lock);
@@ -257,12 +262,16 @@ static int journal_finish_inode_data_buf
 	/* For locking, see the comment in journal_submit_data_buffers() */
 	spin_lock(&journal->j_list_lock);
 	list_for_each_entry(jinode, &commit_transaction->t_inode_list, i_list) {
+		loff_t dirty_start = jinode->i_dirty_start;
+		loff_t dirty_end = jinode->i_dirty_end;
+
 		if (!(jinode->i_flags & JI_WAIT_DATA))
 			continue;
 		jinode->i_flags |= JI_COMMIT_RUNNING;
 		spin_unlock(&journal->j_list_lock);
-		err = filemap_fdatawait_keep_errors(
-				jinode->i_vfs_inode->i_mapping);
+		err = filemap_fdatawait_range_keep_errors(
+				jinode->i_vfs_inode->i_mapping, dirty_start,
+				dirty_end);
 		if (!ret)
 			ret = err;
 		spin_lock(&journal->j_list_lock);
@@ -282,6 +291,8 @@ static int journal_finish_inode_data_buf
 				&jinode->i_transaction->t_inode_list);
 		} else {
 			jinode->i_transaction = NULL;
+			jinode->i_dirty_start = 0;
+			jinode->i_dirty_end = 0;
 		}
 	}
 	spin_unlock(&journal->j_list_lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/jbd2/journal.c linux-libre-5.1.21-gnu/fs/jbd2/journal.c
--- linux-libre-5.1-gnu/fs/jbd2/journal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/jbd2/journal.c	2019-07-28 02:28:39.000000000 -0400
@@ -94,6 +94,8 @@ EXPORT_SYMBOL(jbd2_journal_try_to_free_b
 EXPORT_SYMBOL(jbd2_journal_force_commit);
 EXPORT_SYMBOL(jbd2_journal_inode_add_write);
 EXPORT_SYMBOL(jbd2_journal_inode_add_wait);
+EXPORT_SYMBOL(jbd2_journal_inode_ranged_write);
+EXPORT_SYMBOL(jbd2_journal_inode_ranged_wait);
 EXPORT_SYMBOL(jbd2_journal_init_jbd_inode);
 EXPORT_SYMBOL(jbd2_journal_release_jbd_inode);
 EXPORT_SYMBOL(jbd2_journal_begin_ordered_truncate);
@@ -1350,6 +1352,10 @@ static int jbd2_write_superblock(journal
 	journal_superblock_t *sb = journal->j_superblock;
 	int ret;
 
+	/* Buffer got discarded which means block device got invalidated */
+	if (!buffer_mapped(bh))
+		return -EIO;
+
 	trace_jbd2_write_superblock(journal, write_flags);
 	if (!(journal->j_flags & JBD2_BARRIER))
 		write_flags &= ~(REQ_FUA | REQ_PREFLUSH);
@@ -2371,22 +2377,19 @@ static struct kmem_cache *jbd2_journal_h
 static atomic_t nr_journal_heads = ATOMIC_INIT(0);
 #endif
 
-static int jbd2_journal_init_journal_head_cache(void)
+static int __init jbd2_journal_init_journal_head_cache(void)
 {
-	int retval;
-
-	J_ASSERT(jbd2_journal_head_cache == NULL);
+	J_ASSERT(!jbd2_journal_head_cache);
 	jbd2_journal_head_cache = kmem_cache_create("jbd2_journal_head",
 				sizeof(struct journal_head),
 				0,		/* offset */
 				SLAB_TEMPORARY | SLAB_TYPESAFE_BY_RCU,
 				NULL);		/* ctor */
-	retval = 0;
 	if (!jbd2_journal_head_cache) {
-		retval = -ENOMEM;
 		printk(KERN_EMERG "JBD2: no memory for journal_head cache\n");
+		return -ENOMEM;
 	}
-	return retval;
+	return 0;
 }
 
 static void jbd2_journal_destroy_journal_head_cache(void)
@@ -2573,6 +2576,8 @@ void jbd2_journal_init_jbd_inode(struct
 	jinode->i_next_transaction = NULL;
 	jinode->i_vfs_inode = inode;
 	jinode->i_flags = 0;
+	jinode->i_dirty_start = 0;
+	jinode->i_dirty_end = 0;
 	INIT_LIST_HEAD(&jinode->i_list);
 }
 
@@ -2632,28 +2637,38 @@ static void __exit jbd2_remove_jbd_stats
 
 struct kmem_cache *jbd2_handle_cache, *jbd2_inode_cache;
 
+static int __init jbd2_journal_init_inode_cache(void)
+{
+	J_ASSERT(!jbd2_inode_cache);
+	jbd2_inode_cache = KMEM_CACHE(jbd2_inode, 0);
+	if (!jbd2_inode_cache) {
+		pr_emerg("JBD2: failed to create inode cache\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
 static int __init jbd2_journal_init_handle_cache(void)
 {
+	J_ASSERT(!jbd2_handle_cache);
 	jbd2_handle_cache = KMEM_CACHE(jbd2_journal_handle, SLAB_TEMPORARY);
-	if (jbd2_handle_cache == NULL) {
+	if (!jbd2_handle_cache) {
 		printk(KERN_EMERG "JBD2: failed to create handle cache\n");
 		return -ENOMEM;
 	}
-	jbd2_inode_cache = KMEM_CACHE(jbd2_inode, 0);
-	if (jbd2_inode_cache == NULL) {
-		printk(KERN_EMERG "JBD2: failed to create inode cache\n");
-		kmem_cache_destroy(jbd2_handle_cache);
-		return -ENOMEM;
-	}
 	return 0;
 }
 
+static void jbd2_journal_destroy_inode_cache(void)
+{
+	kmem_cache_destroy(jbd2_inode_cache);
+	jbd2_inode_cache = NULL;
+}
+
 static void jbd2_journal_destroy_handle_cache(void)
 {
 	kmem_cache_destroy(jbd2_handle_cache);
 	jbd2_handle_cache = NULL;
-	kmem_cache_destroy(jbd2_inode_cache);
-	jbd2_inode_cache = NULL;
 }
 
 /*
@@ -2664,21 +2679,27 @@ static int __init journal_init_caches(vo
 {
 	int ret;
 
-	ret = jbd2_journal_init_revoke_caches();
+	ret = jbd2_journal_init_revoke_record_cache();
+	if (ret == 0)
+		ret = jbd2_journal_init_revoke_table_cache();
 	if (ret == 0)
 		ret = jbd2_journal_init_journal_head_cache();
 	if (ret == 0)
 		ret = jbd2_journal_init_handle_cache();
 	if (ret == 0)
+		ret = jbd2_journal_init_inode_cache();
+	if (ret == 0)
 		ret = jbd2_journal_init_transaction_cache();
 	return ret;
 }
 
 static void jbd2_journal_destroy_caches(void)
 {
-	jbd2_journal_destroy_revoke_caches();
+	jbd2_journal_destroy_revoke_record_cache();
+	jbd2_journal_destroy_revoke_table_cache();
 	jbd2_journal_destroy_journal_head_cache();
 	jbd2_journal_destroy_handle_cache();
+	jbd2_journal_destroy_inode_cache();
 	jbd2_journal_destroy_transaction_cache();
 	jbd2_journal_destroy_slabs();
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/jbd2/revoke.c linux-libre-5.1.21-gnu/fs/jbd2/revoke.c
--- linux-libre-5.1-gnu/fs/jbd2/revoke.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/jbd2/revoke.c	2019-07-28 02:28:39.000000000 -0400
@@ -178,33 +178,41 @@ static struct jbd2_revoke_record_s *find
 	return NULL;
 }
 
-void jbd2_journal_destroy_revoke_caches(void)
+void jbd2_journal_destroy_revoke_record_cache(void)
 {
 	kmem_cache_destroy(jbd2_revoke_record_cache);
 	jbd2_revoke_record_cache = NULL;
+}
+
+void jbd2_journal_destroy_revoke_table_cache(void)
+{
 	kmem_cache_destroy(jbd2_revoke_table_cache);
 	jbd2_revoke_table_cache = NULL;
 }
 
-int __init jbd2_journal_init_revoke_caches(void)
+int __init jbd2_journal_init_revoke_record_cache(void)
 {
 	J_ASSERT(!jbd2_revoke_record_cache);
-	J_ASSERT(!jbd2_revoke_table_cache);
-
 	jbd2_revoke_record_cache = KMEM_CACHE(jbd2_revoke_record_s,
 					SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY);
-	if (!jbd2_revoke_record_cache)
-		goto record_cache_failure;
 
+	if (!jbd2_revoke_record_cache) {
+		pr_emerg("JBD2: failed to create revoke_record cache\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+int __init jbd2_journal_init_revoke_table_cache(void)
+{
+	J_ASSERT(!jbd2_revoke_table_cache);
 	jbd2_revoke_table_cache = KMEM_CACHE(jbd2_revoke_table_s,
 					     SLAB_TEMPORARY);
-	if (!jbd2_revoke_table_cache)
-		goto table_cache_failure;
-	return 0;
-table_cache_failure:
-	jbd2_journal_destroy_revoke_caches();
-record_cache_failure:
+	if (!jbd2_revoke_table_cache) {
+		pr_emerg("JBD2: failed to create revoke_table cache\n");
 		return -ENOMEM;
+	}
+	return 0;
 }
 
 static struct jbd2_revoke_table_s *jbd2_journal_init_revoke_table(int hash_size)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/jbd2/transaction.c linux-libre-5.1.21-gnu/fs/jbd2/transaction.c
--- linux-libre-5.1-gnu/fs/jbd2/transaction.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/jbd2/transaction.c	2019-07-28 02:28:39.000000000 -0400
@@ -42,9 +42,11 @@ int __init jbd2_journal_init_transaction
 					0,
 					SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY,
 					NULL);
-	if (transaction_cache)
-		return 0;
-	return -ENOMEM;
+	if (!transaction_cache) {
+		pr_emerg("JBD2: failed to create transaction cache\n");
+		return -ENOMEM;
+	}
+	return 0;
 }
 
 void jbd2_journal_destroy_transaction_cache(void)
@@ -2563,7 +2565,7 @@ void jbd2_journal_refile_buffer(journal_
  * File inode in the inode list of the handle's transaction
  */
 static int jbd2_journal_file_inode(handle_t *handle, struct jbd2_inode *jinode,
-				   unsigned long flags)
+		unsigned long flags, loff_t start_byte, loff_t end_byte)
 {
 	transaction_t *transaction = handle->h_transaction;
 	journal_t *journal;
@@ -2575,26 +2577,17 @@ static int jbd2_journal_file_inode(handl
 	jbd_debug(4, "Adding inode %lu, tid:%d\n", jinode->i_vfs_inode->i_ino,
 			transaction->t_tid);
 
-	/*
-	 * First check whether inode isn't already on the transaction's
-	 * lists without taking the lock. Note that this check is safe
-	 * without the lock as we cannot race with somebody removing inode
-	 * from the transaction. The reason is that we remove inode from the
-	 * transaction only in journal_release_jbd_inode() and when we commit
-	 * the transaction. We are guarded from the first case by holding
-	 * a reference to the inode. We are safe against the second case
-	 * because if jinode->i_transaction == transaction, commit code
-	 * cannot touch the transaction because we hold reference to it,
-	 * and if jinode->i_next_transaction == transaction, commit code
-	 * will only file the inode where we want it.
-	 */
-	if ((jinode->i_transaction == transaction ||
-	    jinode->i_next_transaction == transaction) &&
-	    (jinode->i_flags & flags) == flags)
-		return 0;
-
 	spin_lock(&journal->j_list_lock);
 	jinode->i_flags |= flags;
+
+	if (jinode->i_dirty_end) {
+		jinode->i_dirty_start = min(jinode->i_dirty_start, start_byte);
+		jinode->i_dirty_end = max(jinode->i_dirty_end, end_byte);
+	} else {
+		jinode->i_dirty_start = start_byte;
+		jinode->i_dirty_end = end_byte;
+	}
+
 	/* Is inode already attached where we need it? */
 	if (jinode->i_transaction == transaction ||
 	    jinode->i_next_transaction == transaction)
@@ -2629,12 +2622,28 @@ done:
 int jbd2_journal_inode_add_write(handle_t *handle, struct jbd2_inode *jinode)
 {
 	return jbd2_journal_file_inode(handle, jinode,
-				       JI_WRITE_DATA | JI_WAIT_DATA);
+			JI_WRITE_DATA | JI_WAIT_DATA, 0, LLONG_MAX);
 }
 
 int jbd2_journal_inode_add_wait(handle_t *handle, struct jbd2_inode *jinode)
 {
-	return jbd2_journal_file_inode(handle, jinode, JI_WAIT_DATA);
+	return jbd2_journal_file_inode(handle, jinode, JI_WAIT_DATA, 0,
+			LLONG_MAX);
+}
+
+int jbd2_journal_inode_ranged_write(handle_t *handle,
+		struct jbd2_inode *jinode, loff_t start_byte, loff_t length)
+{
+	return jbd2_journal_file_inode(handle, jinode,
+			JI_WRITE_DATA | JI_WAIT_DATA, start_byte,
+			start_byte + length - 1);
+}
+
+int jbd2_journal_inode_ranged_wait(handle_t *handle, struct jbd2_inode *jinode,
+		loff_t start_byte, loff_t length)
+{
+	return jbd2_journal_file_inode(handle, jinode, JI_WAIT_DATA,
+			start_byte, start_byte + length - 1);
 }
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/Kconfig linux-libre-5.1.21-gnu/fs/Kconfig
--- linux-libre-5.1-gnu/fs/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -10,7 +10,6 @@ config DCACHE_WORD_ACCESS
 
 config VALIDATE_FS_PARSER
 	bool "Validate filesystem parameter description"
-	default y
 	help
 	  Enable this to perform validation of the parameter description for a
 	  filesystem when it is registered.
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/kernfs/dir.c linux-libre-5.1.21-gnu/fs/kernfs/dir.c
--- linux-libre-5.1-gnu/fs/kernfs/dir.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/kernfs/dir.c	2019-07-28 02:28:39.000000000 -0400
@@ -650,11 +650,10 @@ static struct kernfs_node *__kernfs_new_
 	kn->id.generation = gen;
 
 	/*
-	 * set ino first. This barrier is paired with atomic_inc_not_zero in
+	 * set ino first. This RELEASE is paired with atomic_inc_not_zero in
 	 * kernfs_find_and_get_node_by_ino
 	 */
-	smp_mb__before_atomic();
-	atomic_set(&kn->count, 1);
+	atomic_set_release(&kn->count, 1);
 	atomic_set(&kn->active, KN_DEACTIVATED_BIAS);
 	RB_CLEAR_NODE(&kn->rb);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/lockd/xdr4.c linux-libre-5.1.21-gnu/fs/lockd/xdr4.c
--- linux-libre-5.1-gnu/fs/lockd/xdr4.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/lockd/xdr4.c	2019-07-28 02:28:39.000000000 -0400
@@ -119,7 +119,7 @@ nlm4_decode_lock(__be32 *p, struct nlm_l
 
 	locks_init_lock(fl);
 	fl->fl_owner = current->files;
-	fl->fl_pid   = current->tgid;
+	fl->fl_pid   = (pid_t)lock->svid;
 	fl->fl_flags = FL_POSIX;
 	fl->fl_type  = F_RDLCK;		/* as good as anything else */
 	p = xdr_decode_hyper(p, &start);
@@ -266,7 +266,7 @@ nlm4svc_decode_shareargs(struct svc_rqst
 	memset(lock, 0, sizeof(*lock));
 	locks_init_lock(&lock->fl);
 	lock->svid = ~(u32) 0;
-	lock->fl.fl_pid = current->tgid;
+	lock->fl.fl_pid = (pid_t)lock->svid;
 
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie))
 	 || !(p = xdr_decode_string_inplace(p, &lock->caller,
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/lockd/xdr.c linux-libre-5.1.21-gnu/fs/lockd/xdr.c
--- linux-libre-5.1-gnu/fs/lockd/xdr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/lockd/xdr.c	2019-07-28 02:28:39.000000000 -0400
@@ -127,7 +127,7 @@ nlm_decode_lock(__be32 *p, struct nlm_lo
 
 	locks_init_lock(fl);
 	fl->fl_owner = current->files;
-	fl->fl_pid   = current->tgid;
+	fl->fl_pid   = (pid_t)lock->svid;
 	fl->fl_flags = FL_POSIX;
 	fl->fl_type  = F_RDLCK;		/* as good as anything else */
 	start = ntohl(*p++);
@@ -269,7 +269,7 @@ nlmsvc_decode_shareargs(struct svc_rqst
 	memset(lock, 0, sizeof(*lock));
 	locks_init_lock(&lock->fl);
 	lock->svid = ~(u32) 0;
-	lock->fl.fl_pid = current->tgid;
+	lock->fl.fl_pid = (pid_t)lock->svid;
 
 	if (!(p = nlm_decode_cookie(p, &argp->cookie))
 	 || !(p = xdr_decode_string_inplace(p, &lock->caller,
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/namespace.c linux-libre-5.1.21-gnu/fs/namespace.c
--- linux-libre-5.1-gnu/fs/namespace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/namespace.c	2019-07-28 02:28:39.000000000 -0400
@@ -2079,6 +2079,7 @@ static int attach_recursive_mnt(struct m
 		/* Notice when we are propagating across user namespaces */
 		if (child->mnt_parent->mnt_ns->user_ns != user_ns)
 			lock_mnt_tree(child);
+		child->mnt.mnt_flags &= ~MNT_LOCKED;
 		commit_tree(child);
 	}
 	put_mountpoint(smp);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/client.c linux-libre-5.1.21-gnu/fs/nfs/client.c
--- linux-libre-5.1-gnu/fs/nfs/client.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/client.c	2019-07-28 02:28:39.000000000 -0400
@@ -284,6 +284,7 @@ static struct nfs_client *nfs_match_clie
 	struct nfs_client *clp;
 	const struct sockaddr *sap = data->addr;
 	struct nfs_net *nn = net_generic(data->net, nfs_net_id);
+	int error;
 
 again:
 	list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {
@@ -296,9 +297,11 @@ again:
 		if (clp->cl_cons_state > NFS_CS_READY) {
 			refcount_inc(&clp->cl_count);
 			spin_unlock(&nn->nfs_client_lock);
-			nfs_wait_client_init_complete(clp);
+			error = nfs_wait_client_init_complete(clp);
 			nfs_put_client(clp);
 			spin_lock(&nn->nfs_client_lock);
+			if (error < 0)
+				return ERR_PTR(error);
 			goto again;
 		}
 
@@ -407,6 +410,8 @@ struct nfs_client *nfs_get_client(const
 		clp = nfs_match_client(cl_init);
 		if (clp) {
 			spin_unlock(&nn->nfs_client_lock);
+			if (IS_ERR(clp))
+				return clp;
 			if (new)
 				new->rpc_ops->free_client(new);
 			return nfs_found_client(cl_init, clp);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/dir.c linux-libre-5.1.21-gnu/fs/nfs/dir.c
--- linux-libre-5.1-gnu/fs/nfs/dir.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/dir.c	2019-07-28 02:28:39.000000000 -0400
@@ -139,19 +139,12 @@ struct nfs_cache_array {
 	struct nfs_cache_array_entry array[0];
 };
 
-struct readdirvec {
-	unsigned long nr;
-	unsigned long index;
-	struct page *pages[NFS_MAX_READDIR_RAPAGES];
-};
-
 typedef int (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, bool);
 typedef struct {
 	struct file	*file;
 	struct page	*page;
 	struct dir_context *ctx;
 	unsigned long	page_index;
-	struct readdirvec pvec;
 	u64		*dir_cookie;
 	u64		last_cookie;
 	loff_t		current_index;
@@ -531,10 +524,6 @@ int nfs_readdir_page_filler(nfs_readdir_
 	struct nfs_cache_array *array;
 	unsigned int count = 0;
 	int status;
-	int max_rapages = NFS_MAX_READDIR_RAPAGES;
-
-	desc->pvec.index = desc->page_index;
-	desc->pvec.nr = 0;
 
 	scratch = alloc_page(GFP_KERNEL);
 	if (scratch == NULL)
@@ -559,40 +548,20 @@ int nfs_readdir_page_filler(nfs_readdir_
 		if (desc->plus)
 			nfs_prime_dcache(file_dentry(desc->file), entry);
 
-		status = nfs_readdir_add_to_array(entry, desc->pvec.pages[desc->pvec.nr]);
-		if (status == -ENOSPC) {
-			desc->pvec.nr++;
-			if (desc->pvec.nr == max_rapages)
-				break;
-			status = nfs_readdir_add_to_array(entry, desc->pvec.pages[desc->pvec.nr]);
-		}
+		status = nfs_readdir_add_to_array(entry, page);
 		if (status != 0)
 			break;
 	} while (!entry->eof);
 
-	/*
-	 * page and desc->pvec.pages[0] are valid, don't need to check
-	 * whether or not to be NULL.
-	 */
-	copy_highpage(page, desc->pvec.pages[0]);
-
 out_nopages:
 	if (count == 0 || (status == -EBADCOOKIE && entry->eof != 0)) {
-		array = kmap_atomic(desc->pvec.pages[desc->pvec.nr]);
+		array = kmap(page);
 		array->eof_index = array->size;
 		status = 0;
-		kunmap_atomic(array);
+		kunmap(page);
 	}
 
 	put_page(scratch);
-
-	/*
-	 * desc->pvec.nr > 0 means at least one page was completely filled,
-	 * we should return -ENOSPC. Otherwise function
-	 * nfs_readdir_xdr_to_array will enter infinite loop.
-	 */
-	if (desc->pvec.nr > 0)
-		return -ENOSPC;
 	return status;
 }
 
@@ -626,24 +595,6 @@ out_freepages:
 	return -ENOMEM;
 }
 
-/*
- * nfs_readdir_rapages_init initialize rapages by nfs_cache_array structure.
- */
-static
-void nfs_readdir_rapages_init(nfs_readdir_descriptor_t *desc)
-{
-	struct nfs_cache_array *array;
-	int max_rapages = NFS_MAX_READDIR_RAPAGES;
-	int index;
-
-	for (index = 0; index < max_rapages; index++) {
-		array = kmap_atomic(desc->pvec.pages[index]);
-		memset(array, 0, sizeof(struct nfs_cache_array));
-		array->eof_index = -1;
-		kunmap_atomic(array);
-	}
-}
-
 static
 int nfs_readdir_xdr_to_array(nfs_readdir_descriptor_t *desc, struct page *page, struct inode *inode)
 {
@@ -654,12 +605,6 @@ int nfs_readdir_xdr_to_array(nfs_readdir
 	int status = -ENOMEM;
 	unsigned int array_size = ARRAY_SIZE(pages);
 
-	/*
-	 * This means we hit readdir rdpages miss, the preallocated rdpages
-	 * are useless, the preallocate rdpages should be reinitialized.
-	 */
-	nfs_readdir_rapages_init(desc);
-
 	entry.prev_cookie = 0;
 	entry.cookie = desc->last_cookie;
 	entry.eof = 0;
@@ -719,24 +664,9 @@ int nfs_readdir_filler(nfs_readdir_descr
 	struct inode	*inode = file_inode(desc->file);
 	int ret;
 
-	/*
-	 * If desc->page_index in range desc->pvec.index and
-	 * desc->pvec.index + desc->pvec.nr, we get readdir cache hit.
-	 */
-	if (desc->page_index >= desc->pvec.index &&
-		desc->page_index < (desc->pvec.index + desc->pvec.nr)) {
-		/*
-		 * page and desc->pvec.pages[x] are valid, don't need to check
-		 * whether or not to be NULL.
-		 */
-		copy_highpage(page, desc->pvec.pages[desc->page_index - desc->pvec.index]);
-		ret = 0;
-	} else {
-		ret = nfs_readdir_xdr_to_array(desc, page, inode);
-		if (ret < 0)
-			goto error;
-	}
-
+	ret = nfs_readdir_xdr_to_array(desc, page, inode);
+	if (ret < 0)
+		goto error;
 	SetPageUptodate(page);
 
 	if (invalidate_inode_pages2_range(inode->i_mapping, page->index + 1, -1) < 0) {
@@ -901,7 +831,6 @@ static int nfs_readdir(struct file *file
 			*desc = &my_desc;
 	struct nfs_open_dir_context *dir_ctx = file->private_data;
 	int res = 0;
-	int max_rapages = NFS_MAX_READDIR_RAPAGES;
 
 	dfprintk(FILE, "NFS: readdir(%pD2) starting at cookie %llu\n",
 			file, (long long)ctx->pos);
@@ -921,12 +850,6 @@ static int nfs_readdir(struct file *file
 	desc->decode = NFS_PROTO(inode)->decode_dirent;
 	desc->plus = nfs_use_readdirplus(inode, ctx);
 
-	res = nfs_readdir_alloc_pages(desc->pvec.pages, max_rapages);
-	if (res < 0)
-		return -ENOMEM;
-
-	nfs_readdir_rapages_init(desc);
-
 	if (ctx->pos == 0 || nfs_attribute_cache_expired(inode))
 		res = nfs_revalidate_mapping(inode, file->f_mapping);
 	if (res < 0)
@@ -962,7 +885,6 @@ static int nfs_readdir(struct file *file
 			break;
 	} while (!desc->eof);
 out:
-	nfs_readdir_free_pages(desc->pvec.pages, max_rapages);
 	if (res > 0)
 		res = 0;
 	dfprintk(FILE, "NFS: readdir(%pD2) returns %d\n", file, res);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/filelayout/filelayout.c linux-libre-5.1.21-gnu/fs/nfs/filelayout/filelayout.c
--- linux-libre-5.1-gnu/fs/nfs/filelayout/filelayout.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/filelayout/filelayout.c	2019-07-28 02:28:39.000000000 -0400
@@ -904,7 +904,7 @@ fl_pnfs_update_layout(struct inode *ino,
 	status = filelayout_check_deviceid(lo, fl, gfp_flags);
 	if (status) {
 		pnfs_put_lseg(lseg);
-		lseg = ERR_PTR(status);
+		lseg = NULL;
 	}
 out:
 	return lseg;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c linux-libre-5.1.21-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c
--- linux-libre-5.1-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c	2019-07-28 02:28:39.000000000 -0400
@@ -18,7 +18,7 @@
 
 #define NFSDBG_FACILITY		NFSDBG_PNFS_LD
 
-static unsigned int dataserver_timeo = NFS_DEF_TCP_RETRANS;
+static unsigned int dataserver_timeo = NFS_DEF_TCP_TIMEO;
 static unsigned int dataserver_retrans;
 
 static bool ff_layout_has_available_ds(struct pnfs_layout_segment *lseg);
@@ -257,7 +257,7 @@ int ff_layout_track_ds_error(struct nfs4
 	if (status == 0)
 		return 0;
 
-	if (mirror->mirror_ds == NULL)
+	if (IS_ERR_OR_NULL(mirror->mirror_ds))
 		return -EINVAL;
 
 	dserr = kmalloc(sizeof(*dserr), gfp_flags);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/inode.c linux-libre-5.1.21-gnu/fs/nfs/inode.c
--- linux-libre-5.1-gnu/fs/nfs/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -1094,6 +1094,7 @@ int nfs_open(struct inode *inode, struct
 	nfs_fscache_open_file(inode, filp);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(nfs_open);
 
 /*
  * This function is called whenever some part of NFS notices that
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/internal.h linux-libre-5.1.21-gnu/fs/nfs/internal.h
--- linux-libre-5.1-gnu/fs/nfs/internal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/internal.h	2019-07-28 02:28:39.000000000 -0400
@@ -69,8 +69,7 @@ struct nfs_clone_mount {
  * Maximum number of pages that readdir can use for creating
  * a vmapped array of pages.
  */
-#define NFS_MAX_READDIR_PAGES 64
-#define NFS_MAX_READDIR_RAPAGES 8
+#define NFS_MAX_READDIR_PAGES 8
 
 struct nfs_client_initdata {
 	unsigned long init_flags;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/nfs4file.c linux-libre-5.1.21-gnu/fs/nfs/nfs4file.c
--- linux-libre-5.1-gnu/fs/nfs/nfs4file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/nfs4file.c	2019-07-28 02:28:39.000000000 -0400
@@ -49,7 +49,7 @@ nfs4_file_open(struct inode *inode, stru
 		return err;
 
 	if ((openflags & O_ACCMODE) == 3)
-		openflags--;
+		return nfs_open(inode, filp);
 
 	/* We can't create new files here */
 	openflags &= ~(O_CREAT|O_EXCL);
@@ -187,7 +187,7 @@ static loff_t nfs42_remap_file_range(str
 	bool same_inode = false;
 	int ret;
 
-	if (remap_flags & ~REMAP_FILE_ADVISORY)
+	if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY))
 		return -EINVAL;
 
 	/* check alignment w.r.t. clone_blksize */
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/nfs4proc.c linux-libre-5.1.21-gnu/fs/nfs/nfs4proc.c
--- linux-libre-5.1-gnu/fs/nfs/nfs4proc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/nfs4proc.c	2019-07-28 02:28:39.000000000 -0400
@@ -1234,10 +1234,20 @@ static struct nfs4_opendata *nfs4_openda
 	atomic_inc(&sp->so_count);
 	p->o_arg.open_flags = flags;
 	p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
-	p->o_arg.umask = current_umask();
 	p->o_arg.claim = nfs4_map_atomic_open_claim(server, claim);
 	p->o_arg.share_access = nfs4_map_atomic_open_share(server,
 			fmode, flags);
+	if (flags & O_CREAT) {
+		p->o_arg.umask = current_umask();
+		p->o_arg.label = nfs4_label_copy(p->a_label, label);
+		if (c->sattr != NULL && c->sattr->ia_valid != 0) {
+			p->o_arg.u.attrs = &p->attrs;
+			memcpy(&p->attrs, c->sattr, sizeof(p->attrs));
+
+			memcpy(p->o_arg.u.verifier.data, c->verf,
+					sizeof(p->o_arg.u.verifier.data));
+		}
+	}
 	/* don't put an ACCESS op in OPEN compound if O_EXCL, because ACCESS
 	 * will return permission denied for all bits until close */
 	if (!(flags & O_EXCL)) {
@@ -1261,7 +1271,6 @@ static struct nfs4_opendata *nfs4_openda
 	p->o_arg.server = server;
 	p->o_arg.bitmask = nfs4_bitmask(server, label);
 	p->o_arg.open_bitmap = &nfs4_fattr_bitmap[0];
-	p->o_arg.label = nfs4_label_copy(p->a_label, label);
 	switch (p->o_arg.claim) {
 	case NFS4_OPEN_CLAIM_NULL:
 	case NFS4_OPEN_CLAIM_DELEGATE_CUR:
@@ -1274,13 +1283,6 @@ static struct nfs4_opendata *nfs4_openda
 	case NFS4_OPEN_CLAIM_DELEG_PREV_FH:
 		p->o_arg.fh = NFS_FH(d_inode(dentry));
 	}
-	if (c != NULL && c->sattr != NULL && c->sattr->ia_valid != 0) {
-		p->o_arg.u.attrs = &p->attrs;
-		memcpy(&p->attrs, c->sattr, sizeof(p->attrs));
-
-		memcpy(p->o_arg.u.verifier.data, c->verf,
-				sizeof(p->o_arg.u.verifier.data));
-	}
 	p->c_arg.fh = &p->o_res.fh;
 	p->c_arg.stateid = &p->o_res.stateid;
 	p->c_arg.seqid = p->o_arg.seqid;
@@ -6867,7 +6869,6 @@ struct nfs4_lock_waiter {
 	struct task_struct	*task;
 	struct inode		*inode;
 	struct nfs_lowner	*owner;
-	bool			notified;
 };
 
 static int
@@ -6889,13 +6890,13 @@ nfs4_wake_lock_waiter(wait_queue_entry_t
 		/* Make sure it's for the right inode */
 		if (nfs_compare_fh(NFS_FH(waiter->inode), &cbnl->cbnl_fh))
 			return 0;
-
-		waiter->notified = true;
 	}
 
 	/* override "private" so we can use default_wake_function */
 	wait->private = waiter->task;
-	ret = autoremove_wake_function(wait, mode, flags, key);
+	ret = woken_wake_function(wait, mode, flags, key);
+	if (ret)
+		list_del_init(&wait->entry);
 	wait->private = waiter;
 	return ret;
 }
@@ -6904,7 +6905,6 @@ static int
 nfs4_retry_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
 {
 	int status = -ERESTARTSYS;
-	unsigned long flags;
 	struct nfs4_lock_state *lsp = request->fl_u.nfs4_fl.owner;
 	struct nfs_server *server = NFS_SERVER(state->inode);
 	struct nfs_client *clp = server->nfs_client;
@@ -6914,8 +6914,7 @@ nfs4_retry_setlk(struct nfs4_state *stat
 				    .s_dev = server->s_dev };
 	struct nfs4_lock_waiter waiter = { .task  = current,
 					   .inode = state->inode,
-					   .owner = &owner,
-					   .notified = false };
+					   .owner = &owner};
 	wait_queue_entry_t wait;
 
 	/* Don't bother with waitqueue if we don't expect a callback */
@@ -6925,27 +6924,22 @@ nfs4_retry_setlk(struct nfs4_state *stat
 	init_wait(&wait);
 	wait.private = &waiter;
 	wait.func = nfs4_wake_lock_waiter;
-	add_wait_queue(q, &wait);
 
 	while(!signalled()) {
-		waiter.notified = false;
+		add_wait_queue(q, &wait);
 		status = nfs4_proc_setlk(state, cmd, request);
-		if ((status != -EAGAIN) || IS_SETLK(cmd))
+		if ((status != -EAGAIN) || IS_SETLK(cmd)) {
+			finish_wait(q, &wait);
 			break;
-
-		status = -ERESTARTSYS;
-		spin_lock_irqsave(&q->lock, flags);
-		if (waiter.notified) {
-			spin_unlock_irqrestore(&q->lock, flags);
-			continue;
 		}
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&q->lock, flags);
 
-		freezable_schedule_timeout(NFS4_LOCK_MAXTIMEOUT);
+		status = -ERESTARTSYS;
+		freezer_do_not_count();
+		wait_woken(&wait, TASK_INTERRUPTIBLE, NFS4_LOCK_MAXTIMEOUT);
+		freezer_count();
+		finish_wait(q, &wait);
 	}
 
-	finish_wait(q, &wait);
 	return status;
 }
 #else /* !CONFIG_NFS_V4_1 */
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/nfs4state.c linux-libre-5.1.21-gnu/fs/nfs/nfs4state.c
--- linux-libre-5.1-gnu/fs/nfs/nfs4state.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/nfs4state.c	2019-07-28 02:28:39.000000000 -0400
@@ -159,6 +159,10 @@ int nfs40_discover_server_trunking(struc
 		/* Sustain the lease, even if it's empty.  If the clientid4
 		 * goes stale it's of no use for trunking discovery. */
 		nfs4_schedule_state_renewal(*result);
+
+		/* If the client state need to recover, do it. */
+		if (clp->cl_state)
+			nfs4_schedule_state_manager(clp);
 	}
 out:
 	return status;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfs/pnfs.c linux-libre-5.1.21-gnu/fs/nfs/pnfs.c
--- linux-libre-5.1-gnu/fs/nfs/pnfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfs/pnfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -1890,7 +1890,7 @@ lookup_again:
 		spin_unlock(&ino->i_lock);
 		lseg = ERR_PTR(wait_var_event_killable(&lo->plh_outstanding,
 					!atomic_read(&lo->plh_outstanding)));
-		if (IS_ERR(lseg) || !list_empty(&lo->plh_segs))
+		if (IS_ERR(lseg))
 			goto out_put_layout_hdr;
 		pnfs_put_layout_hdr(lo);
 		goto lookup_again;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfsd/nfs4state.c linux-libre-5.1.21-gnu/fs/nfsd/nfs4state.c
--- linux-libre-5.1-gnu/fs/nfsd/nfs4state.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfsd/nfs4state.c	2019-07-28 02:28:39.000000000 -0400
@@ -1562,7 +1562,7 @@ static u32 nfsd4_get_drc_mem(struct nfsd
 	 * Never use more than a third of the remaining memory,
 	 * unless it's the only way to give this client a slot:
 	 */
-	avail = clamp_t(int, avail, slotsize, total_avail/3);
+	avail = clamp_t(unsigned long, avail, slotsize, total_avail/3);
 	num = min_t(int, num, avail / slotsize);
 	nfsd_drc_mem_used += num * slotsize;
 	spin_unlock(&nfsd_drc_lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfsd/nfs4xdr.c linux-libre-5.1.21-gnu/fs/nfsd/nfs4xdr.c
--- linux-libre-5.1-gnu/fs/nfsd/nfs4xdr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfsd/nfs4xdr.c	2019-07-28 02:28:39.000000000 -0400
@@ -2420,8 +2420,10 @@ nfsd4_encode_fattr(struct xdr_stream *xd
 	__be32 status;
 	int err;
 	struct nfs4_acl *acl = NULL;
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
 	void *context = NULL;
 	int contextlen;
+#endif
 	bool contextsupport = false;
 	struct nfsd4_compoundres *resp = rqstp->rq_resp;
 	u32 minorversion = resp->cstate.minorversion;
@@ -2906,12 +2908,14 @@ out_acl:
 			*p++ = cpu_to_be32(NFS4_CHANGE_TYPE_IS_TIME_METADATA);
 	}
 
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
 	if (bmval2 & FATTR4_WORD2_SECURITY_LABEL) {
 		status = nfsd4_encode_security_label(xdr, rqstp, context,
 								contextlen);
 		if (status)
 			goto out;
 	}
+#endif
 
 	attrlen = htonl(xdr->buf->len - attrlen_offset - 4);
 	write_bytes_to_xdr_buf(xdr->buf, attrlen_offset, &attrlen, 4);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nfsd/vfs.h linux-libre-5.1.21-gnu/fs/nfsd/vfs.h
--- linux-libre-5.1-gnu/fs/nfsd/vfs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nfsd/vfs.h	2019-07-28 02:28:39.000000000 -0400
@@ -120,8 +120,11 @@ void		nfsd_put_raparams(struct file *fil
 
 static inline int fh_want_write(struct svc_fh *fh)
 {
-	int ret = mnt_want_write(fh->fh_export->ex_path.mnt);
+	int ret;
 
+	if (fh->fh_want_write)
+		return 0;
+	ret = mnt_want_write(fh->fh_export->ex_path.mnt);
 	if (!ret)
 		fh->fh_want_write = true;
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/notify/fanotify/fanotify.c linux-libre-5.1.21-gnu/fs/notify/fanotify/fanotify.c
--- linux-libre-5.1-gnu/fs/notify/fanotify/fanotify.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/notify/fanotify/fanotify.c	2019-07-28 02:28:39.000000000 -0400
@@ -355,6 +355,10 @@ static __kernel_fsid_t fanotify_get_fsid
 		/* Mark is just getting destroyed or created? */
 		if (!conn)
 			continue;
+		if (!(conn->flags & FSNOTIFY_CONN_FLAG_HAS_FSID))
+			continue;
+		/* Pairs with smp_wmb() in fsnotify_add_mark_list() */
+		smp_rmb();
 		fsid = conn->fsid;
 		if (WARN_ON_ONCE(!fsid.val[0] && !fsid.val[1]))
 			continue;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/notify/fsnotify.c linux-libre-5.1.21-gnu/fs/notify/fsnotify.c
--- linux-libre-5.1-gnu/fs/notify/fsnotify.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/notify/fsnotify.c	2019-07-28 02:28:39.000000000 -0400
@@ -108,6 +108,47 @@ void fsnotify_sb_delete(struct super_blo
 }
 
 /*
+ * fsnotify_nameremove - a filename was removed from a directory
+ *
+ * This is mostly called under parent vfs inode lock so name and
+ * dentry->d_parent should be stable. However there are some corner cases where
+ * inode lock is not held. So to be on the safe side and be reselient to future
+ * callers and out of tree users of d_delete(), we do not assume that d_parent
+ * and d_name are stable and we use dget_parent() and
+ * take_dentry_name_snapshot() to grab stable references.
+ */
+void fsnotify_nameremove(struct dentry *dentry, int isdir)
+{
+	struct dentry *parent;
+	struct name_snapshot name;
+	__u32 mask = FS_DELETE;
+
+	/* d_delete() of pseudo inode? (e.g. __ns_get_path() playing tricks) */
+	if (IS_ROOT(dentry))
+		return;
+
+	if (isdir)
+		mask |= FS_ISDIR;
+
+	parent = dget_parent(dentry);
+	/* Avoid unneeded take_dentry_name_snapshot() */
+	if (!(d_inode(parent)->i_fsnotify_mask & FS_DELETE) &&
+	    !(dentry->d_sb->s_fsnotify_mask & FS_DELETE))
+		goto out_dput;
+
+	take_dentry_name_snapshot(&name, dentry);
+
+	fsnotify(d_inode(parent), mask, d_inode(dentry), FSNOTIFY_EVENT_INODE,
+		 name.name, 0);
+
+	release_dentry_name_snapshot(&name);
+
+out_dput:
+	dput(parent);
+}
+EXPORT_SYMBOL(fsnotify_nameremove);
+
+/*
  * Given an inode, first check if we care what happens to our children.  Inotify
  * and dnotify both tell their parents about events.  If we care about any event
  * on a child we run all of our children and set a dentry flag saying that the
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/notify/mark.c linux-libre-5.1.21-gnu/fs/notify/mark.c
--- linux-libre-5.1-gnu/fs/notify/mark.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/notify/mark.c	2019-07-28 02:28:39.000000000 -0400
@@ -495,10 +495,13 @@ static int fsnotify_attach_connector_to_
 	conn->type = type;
 	conn->obj = connp;
 	/* Cache fsid of filesystem containing the object */
-	if (fsid)
+	if (fsid) {
 		conn->fsid = *fsid;
-	else
+		conn->flags = FSNOTIFY_CONN_FLAG_HAS_FSID;
+	} else {
 		conn->fsid.val[0] = conn->fsid.val[1] = 0;
+		conn->flags = 0;
+	}
 	if (conn->type == FSNOTIFY_OBJ_TYPE_INODE)
 		inode = igrab(fsnotify_conn_inode(conn));
 	/*
@@ -573,7 +576,12 @@ restart:
 		if (err)
 			return err;
 		goto restart;
-	} else if (fsid && (conn->fsid.val[0] || conn->fsid.val[1]) &&
+	} else if (fsid && !(conn->flags & FSNOTIFY_CONN_FLAG_HAS_FSID)) {
+		conn->fsid = *fsid;
+		/* Pairs with smp_rmb() in fanotify_get_fsid() */
+		smp_wmb();
+		conn->flags |= FSNOTIFY_CONN_FLAG_HAS_FSID;
+	} else if (fsid && (conn->flags & FSNOTIFY_CONN_FLAG_HAS_FSID) &&
 		   (fsid->val[0] != conn->fsid.val[0] ||
 		    fsid->val[1] != conn->fsid.val[1])) {
 		/*
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/nsfs.c linux-libre-5.1.21-gnu/fs/nsfs.c
--- linux-libre-5.1-gnu/fs/nsfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/nsfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -85,13 +85,12 @@ slow:
 	inode->i_fop = &ns_file_operations;
 	inode->i_private = ns;
 
-	dentry = d_alloc_pseudo(mnt->mnt_sb, &empty_name);
+	dentry = d_alloc_anon(mnt->mnt_sb);
 	if (!dentry) {
 		iput(inode);
 		return ERR_PTR(-ENOMEM);
 	}
 	d_instantiate(dentry, inode);
-	dentry->d_flags |= DCACHE_RCUACCESS;
 	dentry->d_fsdata = (void *)ns->ops;
 	d = atomic_long_cmpxchg(&ns->stashed, 0, (unsigned long)dentry);
 	if (d) {
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ocfs2/dcache.c linux-libre-5.1.21-gnu/fs/ocfs2/dcache.c
--- linux-libre-5.1-gnu/fs/ocfs2/dcache.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ocfs2/dcache.c	2019-07-28 02:28:39.000000000 -0400
@@ -310,6 +310,18 @@ int ocfs2_dentry_attach_lock(struct dent
 
 out_attach:
 	spin_lock(&dentry_attach_lock);
+	if (unlikely(dentry->d_fsdata && !alias)) {
+		/* d_fsdata is set by a racing thread which is doing
+		 * the same thing as this thread is doing. Leave the racing
+		 * thread going ahead and we return here.
+		 */
+		spin_unlock(&dentry_attach_lock);
+		iput(dl->dl_inode);
+		ocfs2_lock_res_free(&dl->dl_lockres);
+		kfree(dl);
+		return 0;
+	}
+
 	dentry->d_fsdata = dl;
 	dl->dl_count++;
 	spin_unlock(&dentry_attach_lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ocfs2/export.c linux-libre-5.1.21-gnu/fs/ocfs2/export.c
--- linux-libre-5.1-gnu/fs/ocfs2/export.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ocfs2/export.c	2019-07-28 02:28:39.000000000 -0400
@@ -148,16 +148,24 @@ static struct dentry *ocfs2_get_parent(s
 	u64 blkno;
 	struct dentry *parent;
 	struct inode *dir = d_inode(child);
+	int set;
 
 	trace_ocfs2_get_parent(child, child->d_name.len, child->d_name.name,
 			       (unsigned long long)OCFS2_I(dir)->ip_blkno);
 
+	status = ocfs2_nfs_sync_lock(OCFS2_SB(dir->i_sb), 1);
+	if (status < 0) {
+		mlog(ML_ERROR, "getting nfs sync lock(EX) failed %d\n", status);
+		parent = ERR_PTR(status);
+		goto bail;
+	}
+
 	status = ocfs2_inode_lock(dir, NULL, 0);
 	if (status < 0) {
 		if (status != -ENOENT)
 			mlog_errno(status);
 		parent = ERR_PTR(status);
-		goto bail;
+		goto unlock_nfs_sync;
 	}
 
 	status = ocfs2_lookup_ino_from_name(dir, "..", 2, &blkno);
@@ -166,11 +174,31 @@ static struct dentry *ocfs2_get_parent(s
 		goto bail_unlock;
 	}
 
+	status = ocfs2_test_inode_bit(OCFS2_SB(dir->i_sb), blkno, &set);
+	if (status < 0) {
+		if (status == -EINVAL) {
+			status = -ESTALE;
+		} else
+			mlog(ML_ERROR, "test inode bit failed %d\n", status);
+		parent = ERR_PTR(status);
+		goto bail_unlock;
+	}
+
+	trace_ocfs2_get_dentry_test_bit(status, set);
+	if (!set) {
+		status = -ESTALE;
+		parent = ERR_PTR(status);
+		goto bail_unlock;
+	}
+
 	parent = d_obtain_alias(ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0));
 
 bail_unlock:
 	ocfs2_inode_unlock(dir, 0);
 
+unlock_nfs_sync:
+	ocfs2_nfs_sync_unlock(OCFS2_SB(dir->i_sb), 1);
+
 bail:
 	trace_ocfs2_get_parent_end(parent);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/ocfs2/filecheck.c linux-libre-5.1.21-gnu/fs/ocfs2/filecheck.c
--- linux-libre-5.1-gnu/fs/ocfs2/filecheck.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/ocfs2/filecheck.c	2019-07-28 02:28:39.000000000 -0400
@@ -193,6 +193,7 @@ int ocfs2_filecheck_create_sysfs(struct
 	ret = kobject_init_and_add(&entry->fs_kobj, &ocfs2_ktype_filecheck,
 					NULL, "filecheck");
 	if (ret) {
+		kobject_put(&entry->fs_kobj);
 		kfree(fcheck);
 		return ret;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/copy_up.c linux-libre-5.1.21-gnu/fs/overlayfs/copy_up.c
--- linux-libre-5.1-gnu/fs/overlayfs/copy_up.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/copy_up.c	2019-07-28 02:28:39.000000000 -0400
@@ -909,14 +909,14 @@ static bool ovl_open_need_copy_up(struct
 	return true;
 }
 
-int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags)
+int ovl_maybe_copy_up(struct dentry *dentry, int flags)
 {
 	int err = 0;
 
-	if (ovl_open_need_copy_up(dentry, file_flags)) {
+	if (ovl_open_need_copy_up(dentry, flags)) {
 		err = ovl_want_write(dentry);
 		if (!err) {
-			err = ovl_copy_up_flags(dentry, file_flags);
+			err = ovl_copy_up_flags(dentry, flags);
 			ovl_drop_write(dentry);
 		}
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/dir.c linux-libre-5.1.21-gnu/fs/overlayfs/dir.c
--- linux-libre-5.1-gnu/fs/overlayfs/dir.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/dir.c	2019-07-28 02:28:39.000000000 -0400
@@ -260,7 +260,7 @@ static int ovl_instantiate(struct dentry
 		 * hashed directory inode aliases.
 		 */
 		inode = ovl_get_inode(dentry->d_sb, &oip);
-		if (WARN_ON(IS_ERR(inode)))
+		if (IS_ERR(inode))
 			return PTR_ERR(inode);
 	} else {
 		WARN_ON(ovl_inode_real(inode) != d_inode(newdentry));
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/file.c linux-libre-5.1.21-gnu/fs/overlayfs/file.c
--- linux-libre-5.1-gnu/fs/overlayfs/file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/file.c	2019-07-28 02:28:39.000000000 -0400
@@ -11,6 +11,7 @@
 #include <linux/mount.h>
 #include <linux/xattr.h>
 #include <linux/uio.h>
+#include <linux/uaccess.h>
 #include "overlayfs.h"
 
 static char ovl_whatisit(struct inode *inode, struct inode *realinode)
@@ -29,10 +30,11 @@ static struct file *ovl_open_realfile(co
 	struct inode *inode = file_inode(file);
 	struct file *realfile;
 	const struct cred *old_cred;
+	int flags = file->f_flags | O_NOATIME | FMODE_NONOTIFY;
 
 	old_cred = ovl_override_creds(inode->i_sb);
-	realfile = open_with_fake_path(&file->f_path, file->f_flags | O_NOATIME,
-				       realinode, current_cred());
+	realfile = open_with_fake_path(&file->f_path, flags, realinode,
+				       current_cred());
 	revert_creds(old_cred);
 
 	pr_debug("open(%p[%pD2/%c], 0%o) -> (%p, 0%o)\n",
@@ -50,7 +52,7 @@ static int ovl_change_flags(struct file
 	int err;
 
 	/* No atime modificaton on underlying */
-	flags |= O_NOATIME;
+	flags |= O_NOATIME | FMODE_NONOTIFY;
 
 	/* If some flag changed that cannot be changed then something's amiss */
 	if (WARN_ON((file->f_flags ^ flags) & ~OVL_SETFL_MASK))
@@ -116,11 +118,10 @@ static int ovl_real_fdget(const struct f
 
 static int ovl_open(struct inode *inode, struct file *file)
 {
-	struct dentry *dentry = file_dentry(file);
 	struct file *realfile;
 	int err;
 
-	err = ovl_open_maybe_copy_up(dentry, file->f_flags);
+	err = ovl_maybe_copy_up(file_dentry(file), file->f_flags);
 	if (err)
 		return err;
 
@@ -145,11 +146,47 @@ static int ovl_release(struct inode *ino
 
 static loff_t ovl_llseek(struct file *file, loff_t offset, int whence)
 {
-	struct inode *realinode = ovl_inode_real(file_inode(file));
+	struct inode *inode = file_inode(file);
+	struct fd real;
+	const struct cred *old_cred;
+	ssize_t ret;
 
-	return generic_file_llseek_size(file, offset, whence,
-					realinode->i_sb->s_maxbytes,
-					i_size_read(realinode));
+	/*
+	 * The two special cases below do not need to involve real fs,
+	 * so we can optimizing concurrent callers.
+	 */
+	if (offset == 0) {
+		if (whence == SEEK_CUR)
+			return file->f_pos;
+
+		if (whence == SEEK_SET)
+			return vfs_setpos(file, 0, 0);
+	}
+
+	ret = ovl_real_fdget(file, &real);
+	if (ret)
+		return ret;
+
+	/*
+	 * Overlay file f_pos is the master copy that is preserved
+	 * through copy up and modified on read/write, but only real
+	 * fs knows how to SEEK_HOLE/SEEK_DATA and real fs may impose
+	 * limitations that are more strict than ->s_maxbytes for specific
+	 * files, so we use the real file to perform seeks.
+	 */
+	inode_lock(inode);
+	real.file->f_pos = file->f_pos;
+
+	old_cred = ovl_override_creds(inode->i_sb);
+	ret = vfs_llseek(real.file, offset, whence);
+	revert_creds(old_cred);
+
+	file->f_pos = real.file->f_pos;
+	inode_unlock(inode);
+
+	fdput(real);
+
+	return ret;
 }
 
 static void ovl_file_accessed(struct file *file)
@@ -372,10 +409,68 @@ static long ovl_real_ioctl(struct file *
 	return ret;
 }
 
-static long ovl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static unsigned int ovl_get_inode_flags(struct inode *inode)
+{
+	unsigned int flags = READ_ONCE(inode->i_flags);
+	unsigned int ovl_iflags = 0;
+
+	if (flags & S_SYNC)
+		ovl_iflags |= FS_SYNC_FL;
+	if (flags & S_APPEND)
+		ovl_iflags |= FS_APPEND_FL;
+	if (flags & S_IMMUTABLE)
+		ovl_iflags |= FS_IMMUTABLE_FL;
+	if (flags & S_NOATIME)
+		ovl_iflags |= FS_NOATIME_FL;
+
+	return ovl_iflags;
+}
+
+static long ovl_ioctl_set_flags(struct file *file, unsigned long arg)
 {
 	long ret;
 	struct inode *inode = file_inode(file);
+	unsigned int flags;
+	unsigned int old_flags;
+
+	if (!inode_owner_or_capable(inode))
+		return -EACCES;
+
+	if (get_user(flags, (int __user *) arg))
+		return -EFAULT;
+
+	ret = mnt_want_write_file(file);
+	if (ret)
+		return ret;
+
+	inode_lock(inode);
+
+	/* Check the capability before cred override */
+	ret = -EPERM;
+	old_flags = ovl_get_inode_flags(inode);
+	if (((flags ^ old_flags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) &&
+	    !capable(CAP_LINUX_IMMUTABLE))
+		goto unlock;
+
+	ret = ovl_maybe_copy_up(file_dentry(file), O_WRONLY);
+	if (ret)
+		goto unlock;
+
+	ret = ovl_real_ioctl(file, FS_IOC_SETFLAGS, arg);
+
+	ovl_copyflags(ovl_inode_real(inode), inode);
+unlock:
+	inode_unlock(inode);
+
+	mnt_drop_write_file(file);
+
+	return ret;
+
+}
+
+static long ovl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	long ret;
 
 	switch (cmd) {
 	case FS_IOC_GETFLAGS:
@@ -383,23 +478,7 @@ static long ovl_ioctl(struct file *file,
 		break;
 
 	case FS_IOC_SETFLAGS:
-		if (!inode_owner_or_capable(inode))
-			return -EACCES;
-
-		ret = mnt_want_write_file(file);
-		if (ret)
-			return ret;
-
-		ret = ovl_copy_up_with_data(file_dentry(file));
-		if (!ret) {
-			ret = ovl_real_ioctl(file, cmd, arg);
-
-			inode_lock(inode);
-			ovl_copyflags(ovl_inode_real(inode), inode);
-			inode_unlock(inode);
-		}
-
-		mnt_drop_write_file(file);
+		ret = ovl_ioctl_set_flags(file, arg);
 		break;
 
 	default:
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/inode.c linux-libre-5.1.21-gnu/fs/overlayfs/inode.c
--- linux-libre-5.1-gnu/fs/overlayfs/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -553,15 +553,15 @@ static void ovl_fill_inode(struct inode
 	int xinobits = ovl_xino_bits(inode->i_sb);
 
 	/*
-	 * When NFS export is enabled and d_ino is consistent with st_ino
-	 * (samefs or i_ino has enough bits to encode layer), set the same
-	 * value used for d_ino to i_ino, because nfsd readdirplus compares
-	 * d_ino values to i_ino values of child entries. When called from
+	 * When d_ino is consistent with st_ino (samefs or i_ino has enough
+	 * bits to encode layer), set the same value used for st_ino to i_ino,
+	 * so inode number exposed via /proc/locks and a like will be
+	 * consistent with d_ino and st_ino values. An i_ino value inconsistent
+	 * with d_ino also causes nfsd readdirplus to fail.  When called from
 	 * ovl_new_inode(), ino arg is 0, so i_ino will be updated to real
 	 * upper inode i_ino on ovl_inode_init() or ovl_inode_update().
 	 */
-	if (inode->i_sb->s_export_op &&
-	    (ovl_same_sb(inode->i_sb) || xinobits)) {
+	if (ovl_same_sb(inode->i_sb) || xinobits) {
 		inode->i_ino = ino;
 		if (xinobits && fsid && !(ino >> (64 - xinobits)))
 			inode->i_ino |= (unsigned long)fsid << (64 - xinobits);
@@ -777,6 +777,54 @@ struct inode *ovl_lookup_inode(struct su
 	return inode;
 }
 
+bool ovl_lookup_trap_inode(struct super_block *sb, struct dentry *dir)
+{
+	struct inode *key = d_inode(dir);
+	struct inode *trap;
+	bool res;
+
+	trap = ilookup5(sb, (unsigned long) key, ovl_inode_test, key);
+	if (!trap)
+		return false;
+
+	res = IS_DEADDIR(trap) && !ovl_inode_upper(trap) &&
+				  !ovl_inode_lower(trap);
+
+	iput(trap);
+	return res;
+}
+
+/*
+ * Create an inode cache entry for layer root dir, that will intentionally
+ * fail ovl_verify_inode(), so any lookup that will find some layer root
+ * will fail.
+ */
+struct inode *ovl_get_trap_inode(struct super_block *sb, struct dentry *dir)
+{
+	struct inode *key = d_inode(dir);
+	struct inode *trap;
+
+	if (!d_is_dir(dir))
+		return ERR_PTR(-ENOTDIR);
+
+	trap = iget5_locked(sb, (unsigned long) key, ovl_inode_test,
+			    ovl_inode_set, key);
+	if (!trap)
+		return ERR_PTR(-ENOMEM);
+
+	if (!(trap->i_state & I_NEW)) {
+		/* Conflicting layer roots? */
+		iput(trap);
+		return ERR_PTR(-ELOOP);
+	}
+
+	trap->i_mode = S_IFDIR;
+	trap->i_flags = S_DEAD;
+	unlock_new_inode(trap);
+
+	return trap;
+}
+
 /*
  * Does overlay inode need to be hashed by lower inode?
  */
@@ -832,7 +880,7 @@ struct inode *ovl_get_inode(struct super
 	int fsid = bylower ? oip->lowerpath->layer->fsid : 0;
 	bool is_dir, metacopy = false;
 	unsigned long ino = 0;
-	int err = -ENOMEM;
+	int err = oip->newinode ? -EEXIST : -ENOMEM;
 
 	if (!realinode)
 		realinode = d_inode(lowerdentry);
@@ -917,6 +965,7 @@ out:
 	return inode;
 
 out_err:
+	pr_warn_ratelimited("overlayfs: failed to get inode (%i)\n", err);
 	inode = ERR_PTR(err);
 	goto out;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/namei.c linux-libre-5.1.21-gnu/fs/overlayfs/namei.c
--- linux-libre-5.1-gnu/fs/overlayfs/namei.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/namei.c	2019-07-28 02:28:39.000000000 -0400
@@ -18,6 +18,7 @@
 #include "overlayfs.h"
 
 struct ovl_lookup_data {
+	struct super_block *sb;
 	struct qstr name;
 	bool is_dir;
 	bool opaque;
@@ -244,6 +245,12 @@ static int ovl_lookup_single(struct dent
 		if (!d->metacopy || d->last)
 			goto out;
 	} else {
+		if (ovl_lookup_trap_inode(d->sb, this)) {
+			/* Caught in a trap of overlapping layers */
+			err = -ELOOP;
+			goto out_err;
+		}
+
 		if (last_element)
 			d->is_dir = true;
 		if (d->last)
@@ -819,6 +826,7 @@ struct dentry *ovl_lookup(struct inode *
 	int err;
 	bool metacopy = false;
 	struct ovl_lookup_data d = {
+		.sb = dentry->d_sb,
 		.name = dentry->d_name,
 		.is_dir = false,
 		.opaque = false,
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/overlayfs.h linux-libre-5.1.21-gnu/fs/overlayfs/overlayfs.h
--- linux-libre-5.1-gnu/fs/overlayfs/overlayfs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/overlayfs.h	2019-07-28 02:28:39.000000000 -0400
@@ -270,6 +270,7 @@ void ovl_clear_flag(unsigned long flag,
 bool ovl_test_flag(unsigned long flag, struct inode *inode);
 bool ovl_inuse_trylock(struct dentry *dentry);
 void ovl_inuse_unlock(struct dentry *dentry);
+bool ovl_is_inuse(struct dentry *dentry);
 bool ovl_need_index(struct dentry *dentry);
 int ovl_nlink_start(struct dentry *dentry);
 void ovl_nlink_end(struct dentry *dentry);
@@ -376,6 +377,8 @@ struct ovl_inode_params {
 struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev);
 struct inode *ovl_lookup_inode(struct super_block *sb, struct dentry *real,
 			       bool is_upper);
+bool ovl_lookup_trap_inode(struct super_block *sb, struct dentry *dir);
+struct inode *ovl_get_trap_inode(struct super_block *sb, struct dentry *dir);
 struct inode *ovl_get_inode(struct super_block *sb,
 			    struct ovl_inode_params *oip);
 static inline void ovl_copyattr(struct inode *from, struct inode *to)
@@ -421,7 +424,7 @@ extern const struct file_operations ovl_
 int ovl_copy_up(struct dentry *dentry);
 int ovl_copy_up_with_data(struct dentry *dentry);
 int ovl_copy_up_flags(struct dentry *dentry, int flags);
-int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags);
+int ovl_maybe_copy_up(struct dentry *dentry, int flags);
 int ovl_copy_xattr(struct dentry *old, struct dentry *new);
 int ovl_set_attr(struct dentry *upper, struct kstat *stat);
 struct ovl_fh *ovl_encode_real_fh(struct dentry *real, bool is_upper);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/ovl_entry.h linux-libre-5.1.21-gnu/fs/overlayfs/ovl_entry.h
--- linux-libre-5.1-gnu/fs/overlayfs/ovl_entry.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/ovl_entry.h	2019-07-28 02:28:39.000000000 -0400
@@ -29,6 +29,8 @@ struct ovl_sb {
 
 struct ovl_layer {
 	struct vfsmount *mnt;
+	/* Trap in ovl inode cache */
+	struct inode *trap;
 	struct ovl_sb *fs;
 	/* Index of this layer in fs root (upper idx == 0) */
 	int idx;
@@ -65,6 +67,10 @@ struct ovl_fs {
 	/* Did we take the inuse lock? */
 	bool upperdir_locked;
 	bool workdir_locked;
+	/* Traps in ovl inode cache */
+	struct inode *upperdir_trap;
+	struct inode *workdir_trap;
+	struct inode *indexdir_trap;
 	/* Inode numbers in all layers do not use the high xino_bits */
 	unsigned int xino_bits;
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/super.c linux-libre-5.1.21-gnu/fs/overlayfs/super.c
--- linux-libre-5.1-gnu/fs/overlayfs/super.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/super.c	2019-07-28 02:28:39.000000000 -0400
@@ -217,6 +217,9 @@ static void ovl_free_fs(struct ovl_fs *o
 {
 	unsigned i;
 
+	iput(ofs->indexdir_trap);
+	iput(ofs->workdir_trap);
+	iput(ofs->upperdir_trap);
 	dput(ofs->indexdir);
 	dput(ofs->workdir);
 	if (ofs->workdir_locked)
@@ -225,8 +228,10 @@ static void ovl_free_fs(struct ovl_fs *o
 	if (ofs->upperdir_locked)
 		ovl_inuse_unlock(ofs->upper_mnt->mnt_root);
 	mntput(ofs->upper_mnt);
-	for (i = 0; i < ofs->numlower; i++)
+	for (i = 0; i < ofs->numlower; i++) {
+		iput(ofs->lower_layers[i].trap);
 		mntput(ofs->lower_layers[i].mnt);
+	}
 	for (i = 0; i < ofs->numlowerfs; i++)
 		free_anon_bdev(ofs->lower_fs[i].pseudo_dev);
 	kfree(ofs->lower_layers);
@@ -984,7 +989,26 @@ static const struct xattr_handler *ovl_x
 	NULL
 };
 
-static int ovl_get_upper(struct ovl_fs *ofs, struct path *upperpath)
+static int ovl_setup_trap(struct super_block *sb, struct dentry *dir,
+			  struct inode **ptrap, const char *name)
+{
+	struct inode *trap;
+	int err;
+
+	trap = ovl_get_trap_inode(sb, dir);
+	err = PTR_ERR_OR_ZERO(trap);
+	if (err) {
+		if (err == -ELOOP)
+			pr_err("overlayfs: conflicting %s path\n", name);
+		return err;
+	}
+
+	*ptrap = trap;
+	return 0;
+}
+
+static int ovl_get_upper(struct super_block *sb, struct ovl_fs *ofs,
+			 struct path *upperpath)
 {
 	struct vfsmount *upper_mnt;
 	int err;
@@ -1004,6 +1028,11 @@ static int ovl_get_upper(struct ovl_fs *
 	if (err)
 		goto out;
 
+	err = ovl_setup_trap(sb, upperpath->dentry, &ofs->upperdir_trap,
+			     "upperdir");
+	if (err)
+		goto out;
+
 	upper_mnt = clone_private_mount(upperpath);
 	err = PTR_ERR(upper_mnt);
 	if (IS_ERR(upper_mnt)) {
@@ -1030,7 +1059,8 @@ out:
 	return err;
 }
 
-static int ovl_make_workdir(struct ovl_fs *ofs, struct path *workpath)
+static int ovl_make_workdir(struct super_block *sb, struct ovl_fs *ofs,
+			    struct path *workpath)
 {
 	struct vfsmount *mnt = ofs->upper_mnt;
 	struct dentry *temp;
@@ -1045,6 +1075,10 @@ static int ovl_make_workdir(struct ovl_f
 	if (!ofs->workdir)
 		goto out;
 
+	err = ovl_setup_trap(sb, ofs->workdir, &ofs->workdir_trap, "workdir");
+	if (err)
+		goto out;
+
 	/*
 	 * Upper should support d_type, else whiteouts are visible.  Given
 	 * workdir and upper are on same fs, we can do iterate_dir() on
@@ -1105,7 +1139,8 @@ out:
 	return err;
 }
 
-static int ovl_get_workdir(struct ovl_fs *ofs, struct path *upperpath)
+static int ovl_get_workdir(struct super_block *sb, struct ovl_fs *ofs,
+			   struct path *upperpath)
 {
 	int err;
 	struct path workpath = { };
@@ -1136,19 +1171,16 @@ static int ovl_get_workdir(struct ovl_fs
 		pr_warn("overlayfs: workdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n");
 	}
 
-	err = ovl_make_workdir(ofs, &workpath);
-	if (err)
-		goto out;
+	err = ovl_make_workdir(sb, ofs, &workpath);
 
-	err = 0;
 out:
 	path_put(&workpath);
 
 	return err;
 }
 
-static int ovl_get_indexdir(struct ovl_fs *ofs, struct ovl_entry *oe,
-			    struct path *upperpath)
+static int ovl_get_indexdir(struct super_block *sb, struct ovl_fs *ofs,
+			    struct ovl_entry *oe, struct path *upperpath)
 {
 	struct vfsmount *mnt = ofs->upper_mnt;
 	int err;
@@ -1167,6 +1199,11 @@ static int ovl_get_indexdir(struct ovl_f
 
 	ofs->indexdir = ovl_workdir_create(ofs, OVL_INDEXDIR_NAME, true);
 	if (ofs->indexdir) {
+		err = ovl_setup_trap(sb, ofs->indexdir, &ofs->indexdir_trap,
+				     "indexdir");
+		if (err)
+			goto out;
+
 		/*
 		 * Verify upper root is exclusively associated with index dir.
 		 * Older kernels stored upper fh in "trusted.overlay.origin"
@@ -1254,8 +1291,8 @@ static int ovl_get_fsid(struct ovl_fs *o
 	return ofs->numlowerfs;
 }
 
-static int ovl_get_lower_layers(struct ovl_fs *ofs, struct path *stack,
-				unsigned int numlower)
+static int ovl_get_lower_layers(struct super_block *sb, struct ovl_fs *ofs,
+				struct path *stack, unsigned int numlower)
 {
 	int err;
 	unsigned int i;
@@ -1273,16 +1310,28 @@ static int ovl_get_lower_layers(struct o
 
 	for (i = 0; i < numlower; i++) {
 		struct vfsmount *mnt;
+		struct inode *trap;
 		int fsid;
 
 		err = fsid = ovl_get_fsid(ofs, &stack[i]);
 		if (err < 0)
 			goto out;
 
+		err = -EBUSY;
+		if (ovl_is_inuse(stack[i].dentry)) {
+			pr_err("overlayfs: lowerdir is in-use as upperdir/workdir\n");
+			goto out;
+		}
+
+		err = ovl_setup_trap(sb, stack[i].dentry, &trap, "lowerdir");
+		if (err)
+			goto out;
+
 		mnt = clone_private_mount(&stack[i]);
 		err = PTR_ERR(mnt);
 		if (IS_ERR(mnt)) {
 			pr_err("overlayfs: failed to clone lowerpath\n");
+			iput(trap);
 			goto out;
 		}
 
@@ -1292,6 +1341,7 @@ static int ovl_get_lower_layers(struct o
 		 */
 		mnt->mnt_flags |= MNT_READONLY | MNT_NOATIME;
 
+		ofs->lower_layers[ofs->numlower].trap = trap;
 		ofs->lower_layers[ofs->numlower].mnt = mnt;
 		ofs->lower_layers[ofs->numlower].idx = i + 1;
 		ofs->lower_layers[ofs->numlower].fsid = fsid;
@@ -1386,7 +1436,7 @@ static struct ovl_entry *ovl_get_lowerst
 		goto out_err;
 	}
 
-	err = ovl_get_lower_layers(ofs, stack, numlower);
+	err = ovl_get_lower_layers(sb, ofs, stack, numlower);
 	if (err)
 		goto out_err;
 
@@ -1418,6 +1468,77 @@ out_err:
 	goto out;
 }
 
+/*
+ * Check if this layer root is a descendant of:
+ * - another layer of this overlayfs instance
+ * - upper/work dir of any overlayfs instance
+ */
+static int ovl_check_layer(struct super_block *sb, struct dentry *dentry,
+			   const char *name)
+{
+	struct dentry *next = dentry, *parent;
+	int err = 0;
+
+	if (!dentry)
+		return 0;
+
+	parent = dget_parent(next);
+
+	/* Walk back ancestors to root (inclusive) looking for traps */
+	while (!err && parent != next) {
+		if (ovl_is_inuse(parent)) {
+			err = -EBUSY;
+			pr_err("overlayfs: %s path overlapping in-use upperdir/workdir\n",
+			       name);
+		} else if (ovl_lookup_trap_inode(sb, parent)) {
+			err = -ELOOP;
+			pr_err("overlayfs: overlapping %s path\n", name);
+		}
+		next = parent;
+		parent = dget_parent(next);
+		dput(next);
+	}
+
+	dput(parent);
+
+	return err;
+}
+
+/*
+ * Check if any of the layers or work dirs overlap.
+ */
+static int ovl_check_overlapping_layers(struct super_block *sb,
+					struct ovl_fs *ofs)
+{
+	int i, err;
+
+	if (ofs->upper_mnt) {
+		err = ovl_check_layer(sb, ofs->upper_mnt->mnt_root, "upperdir");
+		if (err)
+			return err;
+
+		/*
+		 * Checking workbasedir avoids hitting ovl_is_inuse(parent) of
+		 * this instance and covers overlapping work and index dirs,
+		 * unless work or index dir have been moved since created inside
+		 * workbasedir.  In that case, we already have their traps in
+		 * inode cache and we will catch that case on lookup.
+		 */
+		err = ovl_check_layer(sb, ofs->workbasedir, "workdir");
+		if (err)
+			return err;
+	}
+
+	for (i = 0; i < ofs->numlower; i++) {
+		err = ovl_check_layer(sb, ofs->lower_layers[i].mnt->mnt_root,
+				      "lowerdir");
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 {
 	struct path upperpath = { };
@@ -1457,17 +1578,20 @@ static int ovl_fill_super(struct super_b
 	if (ofs->config.xino != OVL_XINO_OFF)
 		ofs->xino_bits = BITS_PER_LONG - 32;
 
+	/* alloc/destroy_inode needed for setting up traps in inode cache */
+	sb->s_op = &ovl_super_operations;
+
 	if (ofs->config.upperdir) {
 		if (!ofs->config.workdir) {
 			pr_err("overlayfs: missing 'workdir'\n");
 			goto out_err;
 		}
 
-		err = ovl_get_upper(ofs, &upperpath);
+		err = ovl_get_upper(sb, ofs, &upperpath);
 		if (err)
 			goto out_err;
 
-		err = ovl_get_workdir(ofs, &upperpath);
+		err = ovl_get_workdir(sb, ofs, &upperpath);
 		if (err)
 			goto out_err;
 
@@ -1488,7 +1612,7 @@ static int ovl_fill_super(struct super_b
 		sb->s_flags |= SB_RDONLY;
 
 	if (!(ovl_force_readonly(ofs)) && ofs->config.index) {
-		err = ovl_get_indexdir(ofs, oe, &upperpath);
+		err = ovl_get_indexdir(sb, ofs, oe, &upperpath);
 		if (err)
 			goto out_free_oe;
 
@@ -1501,6 +1625,10 @@ static int ovl_fill_super(struct super_b
 
 	}
 
+	err = ovl_check_overlapping_layers(sb, ofs);
+	if (err)
+		goto out_free_oe;
+
 	/* Show index=off in /proc/mounts for forced r/o mount */
 	if (!ofs->indexdir) {
 		ofs->config.index = false;
@@ -1522,7 +1650,6 @@ static int ovl_fill_super(struct super_b
 	cap_lower(cred->cap_effective, CAP_SYS_RESOURCE);
 
 	sb->s_magic = OVERLAYFS_SUPER_MAGIC;
-	sb->s_op = &ovl_super_operations;
 	sb->s_xattr = ovl_xattr_handlers;
 	sb->s_fs_info = ofs;
 	sb->s_flags |= SB_POSIXACL;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/overlayfs/util.c linux-libre-5.1.21-gnu/fs/overlayfs/util.c
--- linux-libre-5.1-gnu/fs/overlayfs/util.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/overlayfs/util.c	2019-07-28 02:28:39.000000000 -0400
@@ -652,6 +652,18 @@ void ovl_inuse_unlock(struct dentry *den
 	}
 }
 
+bool ovl_is_inuse(struct dentry *dentry)
+{
+	struct inode *inode = d_inode(dentry);
+	bool inuse;
+
+	spin_lock(&inode->i_lock);
+	inuse = (inode->i_state & I_OVL_INUSE);
+	spin_unlock(&inode->i_lock);
+
+	return inuse;
+}
+
 /*
  * Does this overlay dentry need to be indexed on copy up?
  */
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/pnode.c linux-libre-5.1.21-gnu/fs/pnode.c
--- linux-libre-5.1-gnu/fs/pnode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/pnode.c	2019-07-28 02:28:39.000000000 -0400
@@ -262,7 +262,6 @@ static int propagate_one(struct mount *m
 	child = copy_tree(last_source, last_source->mnt.mnt_root, type);
 	if (IS_ERR(child))
 		return PTR_ERR(child);
-	child->mnt.mnt_flags &= ~MNT_LOCKED;
 	mnt_set_mountpoint(m, mp, child);
 	last_dest = m;
 	last_source = child;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/proc/array.c linux-libre-5.1.21-gnu/fs/proc/array.c
--- linux-libre-5.1-gnu/fs/proc/array.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/proc/array.c	2019-07-28 02:28:39.000000000 -0400
@@ -462,7 +462,7 @@ static int do_task_stat(struct seq_file
 		 * a program is not able to use ptrace(2) in that case. It is
 		 * safe because the task has stopped executing permanently.
 		 */
-		if (permitted && (task->flags & PF_DUMPCORE)) {
+		if (permitted && (task->flags & (PF_EXITING|PF_DUMPCORE))) {
 			if (try_get_task_stack(task)) {
 				eip = KSTK_EIP(task);
 				esp = KSTK_ESP(task);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/proc/base.c linux-libre-5.1.21-gnu/fs/proc/base.c
--- linux-libre-5.1-gnu/fs/proc/base.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/proc/base.c	2019-07-28 02:28:39.000000000 -0400
@@ -2540,6 +2540,11 @@ static ssize_t proc_pid_attr_write(struc
 		rcu_read_unlock();
 		return -EACCES;
 	}
+	/* Prevent changes to overridden credentials. */
+	if (current_cred() != current_real_cred()) {
+		rcu_read_unlock();
+		return -EBUSY;
+	}
 	rcu_read_unlock();
 
 	if (count > PAGE_SIZE)
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/proc/proc_sysctl.c linux-libre-5.1.21-gnu/fs/proc/proc_sysctl.c
--- linux-libre-5.1-gnu/fs/proc/proc_sysctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/proc/proc_sysctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -498,6 +498,10 @@ static struct inode *proc_sys_make_inode
 
 	if (root->set_ownership)
 		root->set_ownership(head, table, &inode->i_uid, &inode->i_gid);
+	else {
+		inode->i_uid = GLOBAL_ROOT_UID;
+		inode->i_gid = GLOBAL_ROOT_GID;
+	}
 
 	return inode;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/pstore/inode.c linux-libre-5.1.21-gnu/fs/pstore/inode.c
--- linux-libre-5.1-gnu/fs/pstore/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/pstore/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -330,22 +330,21 @@ int pstore_mkfile(struct dentry *root, s
 		goto fail;
 	inode->i_mode = S_IFREG | 0444;
 	inode->i_fop = &pstore_file_operations;
-	private = kzalloc(sizeof(*private), GFP_KERNEL);
-	if (!private)
-		goto fail_alloc;
-	private->record = record;
-
 	scnprintf(name, sizeof(name), "%s-%s-%llu%s",
 			pstore_type_to_name(record->type),
 			record->psi->name, record->id,
 			record->compressed ? ".enc.z" : "");
 
+	private = kzalloc(sizeof(*private), GFP_KERNEL);
+	if (!private)
+		goto fail_inode;
+
 	dentry = d_alloc_name(root, name);
 	if (!dentry)
 		goto fail_private;
 
+	private->record = record;
 	inode->i_size = private->total_size = size;
-
 	inode->i_private = private;
 
 	if (record->time.tv_sec)
@@ -361,7 +360,7 @@ int pstore_mkfile(struct dentry *root, s
 
 fail_private:
 	free_pstore_private(private);
-fail_alloc:
+fail_inode:
 	iput(inode);
 
 fail:
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/pstore/platform.c linux-libre-5.1.21-gnu/fs/pstore/platform.c
--- linux-libre-5.1-gnu/fs/pstore/platform.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/pstore/platform.c	2019-07-28 02:28:39.000000000 -0400
@@ -347,8 +347,10 @@ static void allocate_buf_for_compression
 
 static void free_buf_for_compression(void)
 {
-	if (IS_ENABLED(CONFIG_PSTORE_COMPRESS) && tfm)
+	if (IS_ENABLED(CONFIG_PSTORE_COMPRESS) && tfm) {
 		crypto_free_comp(tfm);
+		tfm = NULL;
+	}
 	kfree(big_oops_buf);
 	big_oops_buf = NULL;
 	big_oops_buf_sz = 0;
@@ -606,7 +608,8 @@ int pstore_register(struct pstore_info *
 		return -EINVAL;
 	}
 
-	allocate_buf_for_compression();
+	if (psi->flags & PSTORE_FLAGS_DMESG)
+		allocate_buf_for_compression();
 
 	if (pstore_is_mounted())
 		pstore_get_records(0);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/pstore/ram.c linux-libre-5.1.21-gnu/fs/pstore/ram.c
--- linux-libre-5.1-gnu/fs/pstore/ram.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/pstore/ram.c	2019-07-28 02:28:39.000000000 -0400
@@ -800,26 +800,36 @@ static int ramoops_probe(struct platform
 
 	cxt->pstore.data = cxt;
 	/*
-	 * Since bufsize is only used for dmesg crash dumps, it
-	 * must match the size of the dprz record (after PRZ header
-	 * and ECC bytes have been accounted for).
+	 * Prepare frontend flags based on which areas are initialized.
+	 * For ramoops_init_przs() cases, the "max count" variable tells
+	 * if there are regions present. For ramoops_init_prz() cases,
+	 * the single region size is how to check.
 	 */
-	cxt->pstore.bufsize = cxt->dprzs[0]->buffer_size;
-	cxt->pstore.buf = kzalloc(cxt->pstore.bufsize, GFP_KERNEL);
-	if (!cxt->pstore.buf) {
-		pr_err("cannot allocate pstore crash dump buffer\n");
-		err = -ENOMEM;
-		goto fail_clear;
-	}
-
-	cxt->pstore.flags = PSTORE_FLAGS_DMESG;
+	cxt->pstore.flags = 0;
+	if (cxt->max_dump_cnt)
+		cxt->pstore.flags |= PSTORE_FLAGS_DMESG;
 	if (cxt->console_size)
 		cxt->pstore.flags |= PSTORE_FLAGS_CONSOLE;
-	if (cxt->ftrace_size)
+	if (cxt->max_ftrace_cnt)
 		cxt->pstore.flags |= PSTORE_FLAGS_FTRACE;
 	if (cxt->pmsg_size)
 		cxt->pstore.flags |= PSTORE_FLAGS_PMSG;
 
+	/*
+	 * Since bufsize is only used for dmesg crash dumps, it
+	 * must match the size of the dprz record (after PRZ header
+	 * and ECC bytes have been accounted for).
+	 */
+	if (cxt->pstore.flags & PSTORE_FLAGS_DMESG) {
+		cxt->pstore.bufsize = cxt->dprzs[0]->buffer_size;
+		cxt->pstore.buf = kzalloc(cxt->pstore.bufsize, GFP_KERNEL);
+		if (!cxt->pstore.buf) {
+			pr_err("cannot allocate pstore crash dump buffer\n");
+			err = -ENOMEM;
+			goto fail_clear;
+		}
+	}
+
 	err = pstore_register(&cxt->pstore);
 	if (err) {
 		pr_err("registering with pstore failed\n");
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/quota/dquot.c linux-libre-5.1.21-gnu/fs/quota/dquot.c
--- linux-libre-5.1-gnu/fs/quota/dquot.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/quota/dquot.c	2019-07-28 02:28:39.000000000 -0400
@@ -1993,8 +1993,8 @@ int __dquot_transfer(struct inode *inode
 				       &warn_to[cnt]);
 		if (ret)
 			goto over_quota;
-		ret = dquot_add_space(transfer_to[cnt], cur_space, rsv_space, 0,
-				      &warn_to[cnt]);
+		ret = dquot_add_space(transfer_to[cnt], cur_space, rsv_space,
+				      DQUOT_SPACE_WARN, &warn_to[cnt]);
 		if (ret) {
 			spin_lock(&transfer_to[cnt]->dq_dqb_lock);
 			dquot_decr_inodes(transfer_to[cnt], inode_usage);
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/select.c linux-libre-5.1.21-gnu/fs/select.c
--- linux-libre-5.1-gnu/fs/select.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/select.c	2019-07-28 02:28:39.000000000 -0400
@@ -758,10 +758,9 @@ static long do_pselect(int n, fd_set __u
 		return ret;
 
 	ret = core_sys_select(n, inp, outp, exp, to);
+	restore_user_sigmask(sigmask, &sigsaved, ret == -ERESTARTNOHAND);
 	ret = poll_select_copy_remaining(&end_time, tsp, type, ret);
 
-	restore_user_sigmask(sigmask, &sigsaved);
-
 	return ret;
 }
 
@@ -1106,8 +1105,7 @@ SYSCALL_DEFINE5(ppoll, struct pollfd __u
 
 	ret = do_sys_poll(ufds, nfds, to);
 
-	restore_user_sigmask(sigmask, &sigsaved);
-
+	restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
 	/* We can restart this syscall, usually */
 	if (ret == -EINTR)
 		ret = -ERESTARTNOHAND;
@@ -1142,8 +1140,7 @@ SYSCALL_DEFINE5(ppoll_time32, struct pol
 
 	ret = do_sys_poll(ufds, nfds, to);
 
-	restore_user_sigmask(sigmask, &sigsaved);
-
+	restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
 	/* We can restart this syscall, usually */
 	if (ret == -EINTR)
 		ret = -ERESTARTNOHAND;
@@ -1350,10 +1347,9 @@ static long do_compat_pselect(int n, com
 		return ret;
 
 	ret = compat_core_sys_select(n, inp, outp, exp, to);
+	restore_user_sigmask(sigmask, &sigsaved, ret == -ERESTARTNOHAND);
 	ret = poll_select_copy_remaining(&end_time, tsp, type, ret);
 
-	restore_user_sigmask(sigmask, &sigsaved);
-
 	return ret;
 }
 
@@ -1425,8 +1421,7 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time32, str
 
 	ret = do_sys_poll(ufds, nfds, to);
 
-	restore_user_sigmask(sigmask, &sigsaved);
-
+	restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
 	/* We can restart this syscall, usually */
 	if (ret == -EINTR)
 		ret = -ERESTARTNOHAND;
@@ -1461,8 +1456,7 @@ COMPAT_SYSCALL_DEFINE5(ppoll_time64, str
 
 	ret = do_sys_poll(ufds, nfds, to);
 
-	restore_user_sigmask(sigmask, &sigsaved);
-
+	restore_user_sigmask(sigmask, &sigsaved, ret == -EINTR);
 	/* We can restart this syscall, usually */
 	if (ret == -EINTR)
 		ret = -ERESTARTNOHAND;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/udf/inode.c linux-libre-5.1.21-gnu/fs/udf/inode.c
--- linux-libre-5.1-gnu/fs/udf/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/udf/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -470,13 +470,15 @@ static struct buffer_head *udf_getblk(st
 	return NULL;
 }
 
-/* Extend the file by 'blocks' blocks, return the number of extents added */
+/* Extend the file with new blocks totaling 'new_block_bytes',
+ * return the number of extents added
+ */
 static int udf_do_extend_file(struct inode *inode,
 			      struct extent_position *last_pos,
 			      struct kernel_long_ad *last_ext,
-			      sector_t blocks)
+			      loff_t new_block_bytes)
 {
-	sector_t add;
+	uint32_t add;
 	int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
 	struct super_block *sb = inode->i_sb;
 	struct kernel_lb_addr prealloc_loc = {};
@@ -486,7 +488,7 @@ static int udf_do_extend_file(struct ino
 
 	/* The previous extent is fake and we should not extend by anything
 	 * - there's nothing to do... */
-	if (!blocks && fake)
+	if (!new_block_bytes && fake)
 		return 0;
 
 	iinfo = UDF_I(inode);
@@ -517,13 +519,12 @@ static int udf_do_extend_file(struct ino
 	/* Can we merge with the previous extent? */
 	if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==
 					EXT_NOT_RECORDED_NOT_ALLOCATED) {
-		add = ((1 << 30) - sb->s_blocksize -
-			(last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) >>
-			sb->s_blocksize_bits;
-		if (add > blocks)
-			add = blocks;
-		blocks -= add;
-		last_ext->extLength += add << sb->s_blocksize_bits;
+		add = (1 << 30) - sb->s_blocksize -
+			(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
+		if (add > new_block_bytes)
+			add = new_block_bytes;
+		new_block_bytes -= add;
+		last_ext->extLength += add;
 	}
 
 	if (fake) {
@@ -544,28 +545,27 @@ static int udf_do_extend_file(struct ino
 	}
 
 	/* Managed to do everything necessary? */
-	if (!blocks)
+	if (!new_block_bytes)
 		goto out;
 
 	/* All further extents will be NOT_RECORDED_NOT_ALLOCATED */
 	last_ext->extLocation.logicalBlockNum = 0;
 	last_ext->extLocation.partitionReferenceNum = 0;
-	add = (1 << (30-sb->s_blocksize_bits)) - 1;
-	last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
-				(add << sb->s_blocksize_bits);
+	add = (1 << 30) - sb->s_blocksize;
+	last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | add;
 
 	/* Create enough extents to cover the whole hole */
-	while (blocks > add) {
-		blocks -= add;
+	while (new_block_bytes > add) {
+		new_block_bytes -= add;
 		err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
 				   last_ext->extLength, 1);
 		if (err)
 			return err;
 		count++;
 	}
-	if (blocks) {
+	if (new_block_bytes) {
 		last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
-			(blocks << sb->s_blocksize_bits);
+			new_block_bytes;
 		err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
 				   last_ext->extLength, 1);
 		if (err)
@@ -596,6 +596,24 @@ out:
 	return count;
 }
 
+/* Extend the final block of the file to final_block_len bytes */
+static void udf_do_extend_final_block(struct inode *inode,
+				      struct extent_position *last_pos,
+				      struct kernel_long_ad *last_ext,
+				      uint32_t final_block_len)
+{
+	struct super_block *sb = inode->i_sb;
+	uint32_t added_bytes;
+
+	added_bytes = final_block_len -
+		      (last_ext->extLength & (sb->s_blocksize - 1));
+	last_ext->extLength += added_bytes;
+	UDF_I(inode)->i_lenExtents += added_bytes;
+
+	udf_write_aext(inode, last_pos, &last_ext->extLocation,
+			last_ext->extLength, 1);
+}
+
 static int udf_extend_file(struct inode *inode, loff_t newsize)
 {
 
@@ -605,10 +623,12 @@ static int udf_extend_file(struct inode
 	int8_t etype;
 	struct super_block *sb = inode->i_sb;
 	sector_t first_block = newsize >> sb->s_blocksize_bits, offset;
+	unsigned long partial_final_block;
 	int adsize;
 	struct udf_inode_info *iinfo = UDF_I(inode);
 	struct kernel_long_ad extent;
-	int err;
+	int err = 0;
+	int within_final_block;
 
 	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
 		adsize = sizeof(struct short_ad);
@@ -618,18 +638,8 @@ static int udf_extend_file(struct inode
 		BUG();
 
 	etype = inode_bmap(inode, first_block, &epos, &eloc, &elen, &offset);
+	within_final_block = (etype != -1);
 
-	/* File has extent covering the new size (could happen when extending
-	 * inside a block)? */
-	if (etype != -1)
-		return 0;
-	if (newsize & (sb->s_blocksize - 1))
-		offset++;
-	/* Extended file just to the boundary of the last file block? */
-	if (offset == 0)
-		return 0;
-
-	/* Truncate is extending the file by 'offset' blocks */
 	if ((!epos.bh && epos.offset == udf_file_entry_alloc_offset(inode)) ||
 	    (epos.bh && epos.offset == sizeof(struct allocExtDesc))) {
 		/* File has no extents at all or has empty last
@@ -643,7 +653,22 @@ static int udf_extend_file(struct inode
 				      &extent.extLength, 0);
 		extent.extLength |= etype << 30;
 	}
-	err = udf_do_extend_file(inode, &epos, &extent, offset);
+
+	partial_final_block = newsize & (sb->s_blocksize - 1);
+
+	/* File has extent covering the new size (could happen when extending
+	 * inside a block)?
+	 */
+	if (within_final_block) {
+		/* Extending file within the last file block */
+		udf_do_extend_final_block(inode, &epos, &extent,
+					  partial_final_block);
+	} else {
+		loff_t add = ((loff_t)offset << sb->s_blocksize_bits) |
+			     partial_final_block;
+		err = udf_do_extend_file(inode, &epos, &extent, add);
+	}
+
 	if (err < 0)
 		goto out;
 	err = 0;
@@ -745,6 +770,7 @@ static sector_t inode_getblk(struct inod
 	/* Are we beyond EOF? */
 	if (etype == -1) {
 		int ret;
+		loff_t hole_len;
 		isBeyondEOF = true;
 		if (count) {
 			if (c)
@@ -760,7 +786,8 @@ static sector_t inode_getblk(struct inod
 			startnum = (offset > 0);
 		}
 		/* Create extents for the hole between EOF and offset */
-		ret = udf_do_extend_file(inode, &prev_epos, laarr, offset);
+		hole_len = (loff_t)offset << inode->i_blkbits;
+		ret = udf_do_extend_file(inode, &prev_epos, laarr, hole_len);
 		if (ret < 0) {
 			*err = ret;
 			newblock = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/userfaultfd.c linux-libre-5.1.21-gnu/fs/userfaultfd.c
--- linux-libre-5.1-gnu/fs/userfaultfd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/userfaultfd.c	2019-07-28 02:28:39.000000000 -0400
@@ -40,6 +40,16 @@ enum userfaultfd_state {
 /*
  * Start with fault_pending_wqh and fault_wqh so they're more likely
  * to be in the same cacheline.
+ *
+ * Locking order:
+ *	fd_wqh.lock
+ *		fault_pending_wqh.lock
+ *			fault_wqh.lock
+ *		event_wqh.lock
+ *
+ * To avoid deadlocks, IRQs must be disabled when taking any of the above locks,
+ * since fd_wqh.lock is taken by aio_poll() while it's holding a lock that's
+ * also taken in IRQ context.
  */
 struct userfaultfd_ctx {
 	/* waitqueue head for the pending (i.e. not read) userfaults */
@@ -458,7 +468,7 @@ vm_fault_t handle_userfault(struct vm_fa
 	blocking_state = return_to_userland ? TASK_INTERRUPTIBLE :
 			 TASK_KILLABLE;
 
-	spin_lock(&ctx->fault_pending_wqh.lock);
+	spin_lock_irq(&ctx->fault_pending_wqh.lock);
 	/*
 	 * After the __add_wait_queue the uwq is visible to userland
 	 * through poll/read().
@@ -470,7 +480,7 @@ vm_fault_t handle_userfault(struct vm_fa
 	 * __add_wait_queue.
 	 */
 	set_current_state(blocking_state);
-	spin_unlock(&ctx->fault_pending_wqh.lock);
+	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 
 	if (!is_vm_hugetlb_page(vmf->vma))
 		must_wait = userfaultfd_must_wait(ctx, vmf->address, vmf->flags,
@@ -552,13 +562,13 @@ vm_fault_t handle_userfault(struct vm_fa
 	 * kernel stack can be released after the list_del_init.
 	 */
 	if (!list_empty_careful(&uwq.wq.entry)) {
-		spin_lock(&ctx->fault_pending_wqh.lock);
+		spin_lock_irq(&ctx->fault_pending_wqh.lock);
 		/*
 		 * No need of list_del_init(), the uwq on the stack
 		 * will be freed shortly anyway.
 		 */
 		list_del(&uwq.wq.entry);
-		spin_unlock(&ctx->fault_pending_wqh.lock);
+		spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 	}
 
 	/*
@@ -583,7 +593,7 @@ static void userfaultfd_event_wait_compl
 	init_waitqueue_entry(&ewq->wq, current);
 	release_new_ctx = NULL;
 
-	spin_lock(&ctx->event_wqh.lock);
+	spin_lock_irq(&ctx->event_wqh.lock);
 	/*
 	 * After the __add_wait_queue the uwq is visible to userland
 	 * through poll/read().
@@ -613,15 +623,15 @@ static void userfaultfd_event_wait_compl
 			break;
 		}
 
-		spin_unlock(&ctx->event_wqh.lock);
+		spin_unlock_irq(&ctx->event_wqh.lock);
 
 		wake_up_poll(&ctx->fd_wqh, EPOLLIN);
 		schedule();
 
-		spin_lock(&ctx->event_wqh.lock);
+		spin_lock_irq(&ctx->event_wqh.lock);
 	}
 	__set_current_state(TASK_RUNNING);
-	spin_unlock(&ctx->event_wqh.lock);
+	spin_unlock_irq(&ctx->event_wqh.lock);
 
 	if (release_new_ctx) {
 		struct vm_area_struct *vma;
@@ -918,10 +928,10 @@ wakeup:
 	 * the last page faults that may have been already waiting on
 	 * the fault_*wqh.
 	 */
-	spin_lock(&ctx->fault_pending_wqh.lock);
+	spin_lock_irq(&ctx->fault_pending_wqh.lock);
 	__wake_up_locked_key(&ctx->fault_pending_wqh, TASK_NORMAL, &range);
 	__wake_up(&ctx->fault_wqh, TASK_NORMAL, 1, &range);
-	spin_unlock(&ctx->fault_pending_wqh.lock);
+	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 
 	/* Flush pending events that may still wait on event_wqh */
 	wake_up_all(&ctx->event_wqh);
@@ -1134,7 +1144,7 @@ static ssize_t userfaultfd_ctx_read(stru
 
 	if (!ret && msg->event == UFFD_EVENT_FORK) {
 		ret = resolve_userfault_fork(ctx, fork_nctx, msg);
-		spin_lock(&ctx->event_wqh.lock);
+		spin_lock_irq(&ctx->event_wqh.lock);
 		if (!list_empty(&fork_event)) {
 			/*
 			 * The fork thread didn't abort, so we can
@@ -1180,7 +1190,7 @@ static ssize_t userfaultfd_ctx_read(stru
 			if (ret)
 				userfaultfd_ctx_put(fork_nctx);
 		}
-		spin_unlock(&ctx->event_wqh.lock);
+		spin_unlock_irq(&ctx->event_wqh.lock);
 	}
 
 	return ret;
@@ -1219,14 +1229,14 @@ static ssize_t userfaultfd_read(struct f
 static void __wake_userfault(struct userfaultfd_ctx *ctx,
 			     struct userfaultfd_wake_range *range)
 {
-	spin_lock(&ctx->fault_pending_wqh.lock);
+	spin_lock_irq(&ctx->fault_pending_wqh.lock);
 	/* wake all in the range and autoremove */
 	if (waitqueue_active(&ctx->fault_pending_wqh))
 		__wake_up_locked_key(&ctx->fault_pending_wqh, TASK_NORMAL,
 				     range);
 	if (waitqueue_active(&ctx->fault_wqh))
 		__wake_up(&ctx->fault_wqh, TASK_NORMAL, 1, range);
-	spin_unlock(&ctx->fault_pending_wqh.lock);
+	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 }
 
 static __always_inline void wake_userfault(struct userfaultfd_ctx *ctx,
@@ -1881,7 +1891,7 @@ static void userfaultfd_show_fdinfo(stru
 	wait_queue_entry_t *wq;
 	unsigned long pending = 0, total = 0;
 
-	spin_lock(&ctx->fault_pending_wqh.lock);
+	spin_lock_irq(&ctx->fault_pending_wqh.lock);
 	list_for_each_entry(wq, &ctx->fault_pending_wqh.head, entry) {
 		pending++;
 		total++;
@@ -1889,7 +1899,7 @@ static void userfaultfd_show_fdinfo(stru
 	list_for_each_entry(wq, &ctx->fault_wqh.head, entry) {
 		total++;
 	}
-	spin_unlock(&ctx->fault_pending_wqh.lock);
+	spin_unlock_irq(&ctx->fault_pending_wqh.lock);
 
 	/*
 	 * If more protocols will be added, there will be all shown
diff -druNp --no-dereference linux-libre-5.1-gnu/fs/xfs/xfs_file.c linux-libre-5.1.21-gnu/fs/xfs/xfs_file.c
--- linux-libre-5.1-gnu/fs/xfs/xfs_file.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/fs/xfs/xfs_file.c	2019-07-28 02:28:39.000000000 -0400
@@ -517,6 +517,9 @@ xfs_file_dio_aio_write(
 	}
 
 	if (iocb->ki_flags & IOCB_NOWAIT) {
+		/* unaligned dio always waits, bail */
+		if (unaligned_io)
+			return -EAGAIN;
 		if (!xfs_ilock_nowait(ip, iolock))
 			return -EAGAIN;
 	} else {
@@ -536,9 +539,6 @@ xfs_file_dio_aio_write(
 	 * xfs_file_aio_write_checks() for other reasons.
 	 */
 	if (unaligned_io) {
-		/* unaligned dio always waits, bail */
-		if (iocb->ki_flags & IOCB_NOWAIT)
-			return -EAGAIN;
 		inode_dio_wait(inode);
 	} else if (iolock == XFS_IOLOCK_EXCL) {
 		xfs_ilock_demote(ip, XFS_IOLOCK_EXCL);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/acpi/platform/aclinux.h linux-libre-5.1.21-gnu/include/acpi/platform/aclinux.h
--- linux-libre-5.1-gnu/include/acpi/platform/aclinux.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/acpi/platform/aclinux.h	2019-07-28 02:28:39.000000000 -0400
@@ -66,6 +66,11 @@
 
 #define ACPI_INIT_FUNCTION __init
 
+/* Use a specific bugging default separate from ACPICA */
+
+#undef ACPI_DEBUG_DEFAULT
+#define ACPI_DEBUG_DEFAULT          (ACPI_LV_INFO | ACPI_LV_REPAIR)
+
 #ifndef CONFIG_ACPI
 
 /* External globals for __KERNEL__, stubs is needed */
@@ -82,11 +87,6 @@
 #define ACPI_NO_ERROR_MESSAGES
 #undef ACPI_DEBUG_OUTPUT
 
-/* Use a specific bugging default separate from ACPICA */
-
-#undef ACPI_DEBUG_DEFAULT
-#define ACPI_DEBUG_DEFAULT          (ACPI_LV_INFO | ACPI_LV_REPAIR)
-
 /* External interface for __KERNEL__, stub is needed */
 
 #define ACPI_EXTERNAL_RETURN_STATUS(prototype) \
diff -druNp --no-dereference linux-libre-5.1-gnu/include/asm-generic/bug.h linux-libre-5.1.21-gnu/include/asm-generic/bug.h
--- linux-libre-5.1-gnu/include/asm-generic/bug.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/asm-generic/bug.h	2019-07-28 02:28:39.000000000 -0400
@@ -104,8 +104,10 @@ extern void warn_slowpath_null(const cha
 	warn_slowpath_fmt_taint(__FILE__, __LINE__, taint, arg)
 #else
 extern __printf(1, 2) void __warn_printk(const char *fmt, ...);
-#define __WARN()		__WARN_TAINT(TAINT_WARN)
-#define __WARN_printf(arg...)	do { __warn_printk(arg); __WARN(); } while (0)
+#define __WARN() do { \
+	printk(KERN_WARNING CUT_HERE); __WARN_TAINT(TAINT_WARN); \
+} while (0)
+#define __WARN_printf(arg...)	__WARN_printf_taint(TAINT_WARN, arg)
 #define __WARN_printf_taint(taint, arg...)				\
 	do { __warn_printk(arg); __WARN_TAINT(taint); } while (0)
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/include/asm-generic/futex.h linux-libre-5.1.21-gnu/include/asm-generic/futex.h
--- linux-libre-5.1-gnu/include/asm-generic/futex.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/asm-generic/futex.h	2019-07-28 02:28:39.000000000 -0400
@@ -23,7 +23,9 @@
  *
  * Return:
  * 0 - On success
- * <0 - On error
+ * -EFAULT - User access resulted in a page fault
+ * -EAGAIN - Atomic operation was unable to complete due to contention
+ * -ENOSYS - Operation not supported
  */
 static inline int
 arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
@@ -85,7 +87,9 @@ out_pagefault_enable:
  *
  * Return:
  * 0 - On success
- * <0 - On error
+ * -EFAULT - User access resulted in a page fault
+ * -EAGAIN - Atomic operation was unable to complete due to contention
+ * -ENOSYS - Function not implemented (only if !HAVE_FUTEX_CMPXCHG)
  */
 static inline int
 futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
diff -druNp --no-dereference linux-libre-5.1-gnu/include/asm-generic/mm_hooks.h linux-libre-5.1.21-gnu/include/asm-generic/mm_hooks.h
--- linux-libre-5.1-gnu/include/asm-generic/mm_hooks.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/asm-generic/mm_hooks.h	2019-07-28 02:28:39.000000000 -0400
@@ -18,7 +18,6 @@ static inline void arch_exit_mmap(struct
 }
 
 static inline void arch_unmap(struct mm_struct *mm,
-			struct vm_area_struct *vma,
 			unsigned long start, unsigned long end)
 {
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/include/crypto/hash.h linux-libre-5.1.21-gnu/include/crypto/hash.h
--- linux-libre-5.1-gnu/include/crypto/hash.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/crypto/hash.h	2019-07-28 02:28:39.000000000 -0400
@@ -152,7 +152,13 @@ struct shash_desc {
 };
 
 #define HASH_MAX_DIGESTSIZE	 64
-#define HASH_MAX_DESCSIZE	360
+
+/*
+ * Worst case is hmac(sha3-224-generic).  Its context is a nested 'shash_desc'
+ * containing a 'struct sha3_state'.
+ */
+#define HASH_MAX_DESCSIZE	(sizeof(struct shash_desc) + 360)
+
 #define HASH_MAX_STATESIZE	512
 
 #define SHASH_DESC_ON_STACK(shash, ctx)				  \
diff -druNp --no-dereference linux-libre-5.1-gnu/include/drm/drm_displayid.h linux-libre-5.1.21-gnu/include/drm/drm_displayid.h
--- linux-libre-5.1-gnu/include/drm/drm_displayid.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/drm/drm_displayid.h	2019-07-28 02:28:39.000000000 -0400
@@ -40,6 +40,7 @@
 #define DATA_BLOCK_DISPLAY_INTERFACE 0x0f
 #define DATA_BLOCK_STEREO_DISPLAY_INTERFACE 0x10
 #define DATA_BLOCK_TILED_DISPLAY 0x12
+#define DATA_BLOCK_CTA 0x81
 
 #define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
 
@@ -90,4 +91,13 @@ struct displayid_detailed_timing_block {
 	struct displayid_block base;
 	struct displayid_detailed_timings_1 timings[0];
 };
+
+#define for_each_displayid_db(displayid, block, idx, length) \
+	for ((block) = (struct displayid_block *)&(displayid)[idx]; \
+	     (idx) + sizeof(struct displayid_block) <= (length) && \
+	     (idx) + sizeof(struct displayid_block) + (block)->num_bytes <= (length) && \
+	     (block)->num_bytes > 0; \
+	     (idx) += (block)->num_bytes + sizeof(struct displayid_block), \
+	     (block) = (struct displayid_block *)&(displayid)[idx])
+
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/include/drm/drm_edid.h linux-libre-5.1.21-gnu/include/drm/drm_edid.h
--- linux-libre-5.1-gnu/include/drm/drm_edid.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/drm/drm_edid.h	2019-07-28 02:28:39.000000000 -0400
@@ -465,6 +465,7 @@ struct edid *drm_get_edid_switcheroo(str
 				     struct i2c_adapter *adapter);
 struct edid *drm_edid_duplicate(const struct edid *edid);
 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
+int drm_add_override_edid_modes(struct drm_connector *connector);
 
 u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
 enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/drm/drm_modeset_helper_vtables.h linux-libre-5.1.21-gnu/include/drm/drm_modeset_helper_vtables.h
--- linux-libre-5.1-gnu/include/drm/drm_modeset_helper_vtables.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/drm/drm_modeset_helper_vtables.h	2019-07-28 02:28:39.000000000 -0400
@@ -1178,6 +1178,14 @@ struct drm_plane_helper_funcs {
 	 * current one with the new plane configurations in the new
 	 * plane_state.
 	 *
+	 * Drivers should also swap the framebuffers between current plane
+	 * state (&drm_plane.state) and new_state.
+	 * This is required since cleanup for async commits is performed on
+	 * the new state, rather than old state like for traditional commits.
+	 * Since we want to give up the reference on the current (old) fb
+	 * instead of our brand new one, swap them in the driver during the
+	 * async commit.
+	 *
 	 * FIXME:
 	 *  - It only works for single plane updates
 	 *  - Async Pageflips are not supported yet
diff -druNp --no-dereference linux-libre-5.1-gnu/include/drm/tinydrm/mipi-dbi.h linux-libre-5.1.21-gnu/include/drm/tinydrm/mipi-dbi.h
--- linux-libre-5.1-gnu/include/drm/tinydrm/mipi-dbi.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/drm/tinydrm/mipi-dbi.h	2019-07-28 02:28:39.000000000 -0400
@@ -43,7 +43,7 @@ struct mipi_dbi {
 	struct spi_device *spi;
 	bool enabled;
 	struct mutex cmdlock;
-	int (*command)(struct mipi_dbi *mipi, u8 cmd, u8 *param, size_t num);
+	int (*command)(struct mipi_dbi *mipi, u8 *cmd, u8 *param, size_t num);
 	const u8 *read_commands;
 	struct gpio_desc *dc;
 	u16 *tx_buf;
@@ -82,6 +82,7 @@ u32 mipi_dbi_spi_cmd_max_speed(struct sp
 
 int mipi_dbi_command_read(struct mipi_dbi *mipi, u8 cmd, u8 *val);
 int mipi_dbi_command_buf(struct mipi_dbi *mipi, u8 cmd, u8 *data, size_t len);
+int mipi_dbi_command_stackbuf(struct mipi_dbi *mipi, u8 cmd, u8 *data, size_t len);
 int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
 		      struct drm_rect *clip, bool swap);
 /**
@@ -99,7 +100,7 @@ int mipi_dbi_buf_copy(void *dst, struct
 #define mipi_dbi_command(mipi, cmd, seq...) \
 ({ \
 	u8 d[] = { seq }; \
-	mipi_dbi_command_buf(mipi, cmd, d, ARRAY_SIZE(d)); \
+	mipi_dbi_command_stackbuf(mipi, cmd, d, ARRAY_SIZE(d)); \
 })
 
 #ifdef CONFIG_DEBUG_FS
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/bio.h linux-libre-5.1.21-gnu/include/linux/bio.h
--- linux-libre-5.1-gnu/include/linux/bio.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/bio.h	2019-07-28 02:28:39.000000000 -0400
@@ -224,7 +224,7 @@ static inline void bio_cnt_set(struct bi
 {
 	if (count != 1) {
 		bio->bi_flags |= (1 << BIO_REFFED);
-		smp_mb__before_atomic();
+		smp_mb();
 	}
 	atomic_set(&bio->__bi_cnt, count);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/bitops.h linux-libre-5.1.21-gnu/include/linux/bitops.h
--- linux-libre-5.1-gnu/include/linux/bitops.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/bitops.h	2019-07-28 02:28:39.000000000 -0400
@@ -60,7 +60,7 @@ static __always_inline unsigned long hwe
  */
 static inline __u64 rol64(__u64 word, unsigned int shift)
 {
-	return (word << shift) | (word >> (64 - shift));
+	return (word << (shift & 63)) | (word >> ((-shift) & 63));
 }
 
 /**
@@ -70,7 +70,7 @@ static inline __u64 rol64(__u64 word, un
  */
 static inline __u64 ror64(__u64 word, unsigned int shift)
 {
-	return (word >> shift) | (word << (64 - shift));
+	return (word >> (shift & 63)) | (word << ((-shift) & 63));
 }
 
 /**
@@ -80,7 +80,7 @@ static inline __u64 ror64(__u64 word, un
  */
 static inline __u32 rol32(__u32 word, unsigned int shift)
 {
-	return (word << shift) | (word >> ((-shift) & 31));
+	return (word << (shift & 31)) | (word >> ((-shift) & 31));
 }
 
 /**
@@ -90,7 +90,7 @@ static inline __u32 rol32(__u32 word, un
  */
 static inline __u32 ror32(__u32 word, unsigned int shift)
 {
-	return (word >> shift) | (word << (32 - shift));
+	return (word >> (shift & 31)) | (word << ((-shift) & 31));
 }
 
 /**
@@ -100,7 +100,7 @@ static inline __u32 ror32(__u32 word, un
  */
 static inline __u16 rol16(__u16 word, unsigned int shift)
 {
-	return (word << shift) | (word >> (16 - shift));
+	return (word << (shift & 15)) | (word >> ((-shift) & 15));
 }
 
 /**
@@ -110,7 +110,7 @@ static inline __u16 rol16(__u16 word, un
  */
 static inline __u16 ror16(__u16 word, unsigned int shift)
 {
-	return (word >> shift) | (word << (16 - shift));
+	return (word >> (shift & 15)) | (word << ((-shift) & 15));
 }
 
 /**
@@ -120,7 +120,7 @@ static inline __u16 ror16(__u16 word, un
  */
 static inline __u8 rol8(__u8 word, unsigned int shift)
 {
-	return (word << shift) | (word >> (8 - shift));
+	return (word << (shift & 7)) | (word >> ((-shift) & 7));
 }
 
 /**
@@ -130,7 +130,7 @@ static inline __u8 rol8(__u8 word, unsig
  */
 static inline __u8 ror8(__u8 word, unsigned int shift)
 {
-	return (word >> shift) | (word << (8 - shift));
+	return (word >> (shift & 7)) | (word << ((-shift) & 7));
 }
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/blkdev.h linux-libre-5.1.21-gnu/include/linux/blkdev.h
--- linux-libre-5.1-gnu/include/linux/blkdev.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/blkdev.h	2019-07-28 02:28:39.000000000 -0400
@@ -344,6 +344,11 @@ struct queue_limits {
 
 #ifdef CONFIG_BLK_DEV_ZONED
 
+/*
+ * Maximum number of zones to report with a single report zones command.
+ */
+#define BLK_ZONED_REPORT_MAX_ZONES	8192U
+
 extern unsigned int blkdev_nr_zones(struct block_device *bdev);
 extern int blkdev_report_zones(struct block_device *bdev,
 			       sector_t sector, struct blk_zone *zones,
@@ -662,7 +667,7 @@ static inline bool blk_queue_is_zoned(st
 	}
 }
 
-static inline unsigned int blk_queue_zone_sectors(struct request_queue *q)
+static inline sector_t blk_queue_zone_sectors(struct request_queue *q)
 {
 	return blk_queue_is_zoned(q) ? q->limits.chunk_sectors : 0;
 }
@@ -1400,7 +1405,7 @@ static inline bool bdev_is_zoned(struct
 	return false;
 }
 
-static inline unsigned int bdev_zone_sectors(struct block_device *bdev)
+static inline sector_t bdev_zone_sectors(struct block_device *bdev)
 {
 	struct request_queue *q = bdev_get_queue(bdev);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/bpf-cgroup.h linux-libre-5.1.21-gnu/include/linux/bpf-cgroup.h
--- linux-libre-5.1-gnu/include/linux/bpf-cgroup.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/bpf-cgroup.h	2019-07-28 02:28:39.000000000 -0400
@@ -230,6 +230,12 @@ int bpf_percpu_cgroup_storage_update(str
 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx)		       \
 	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP6_SENDMSG, t_ctx)
 
+#define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr)			\
+	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP4_RECVMSG, NULL)
+
+#define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr)			\
+	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP6_RECVMSG, NULL)
+
 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops)				       \
 ({									       \
 	int __ret = 0;							       \
@@ -319,6 +325,8 @@ static inline int bpf_percpu_cgroup_stor
 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
+#define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) ({ 0; })
+#define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type,major,minor,access) ({ 0; })
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/bpf.h linux-libre-5.1.21-gnu/include/linux/bpf.h
--- linux-libre-5.1-gnu/include/linux/bpf.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/bpf.h	2019-07-28 02:28:39.000000000 -0400
@@ -36,6 +36,7 @@ struct bpf_map_ops {
 	void (*map_free)(struct bpf_map *map);
 	int (*map_get_next_key)(struct bpf_map *map, void *key, void *next_key);
 	void (*map_release_uref)(struct bpf_map *map);
+	void *(*map_lookup_elem_sys_only)(struct bpf_map *map, void *key);
 
 	/* funcs callable from userspace and from eBPF programs */
 	void *(*map_lookup_elem)(struct bpf_map *map, void *key);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/cgroup-defs.h linux-libre-5.1.21-gnu/include/linux/cgroup-defs.h
--- linux-libre-5.1-gnu/include/linux/cgroup-defs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/cgroup-defs.h	2019-07-28 02:28:39.000000000 -0400
@@ -83,6 +83,11 @@ enum {
 	 * Enable cpuset controller in v1 cgroup to use v2 behavior.
 	 */
 	CGRP_ROOT_CPUSET_V2_MODE = (1 << 4),
+
+	/*
+	 * Enable legacy local memory.events.
+	 */
+	CGRP_ROOT_MEMORY_LOCAL_EVENTS = (1 << 5),
 };
 
 /* cftype->flags */
@@ -349,6 +354,11 @@ struct cgroup {
 	 * Dying cgroups are cgroups which were deleted by a user,
 	 * but are still existing because someone else is holding a reference.
 	 * max_descendants is a maximum allowed number of descent cgroups.
+	 *
+	 * nr_descendants and nr_dying_descendants are protected
+	 * by cgroup_mutex and css_set_lock. It's fine to read them holding
+	 * any of cgroup_mutex and css_set_lock; for writing both locks
+	 * should be held.
 	 */
 	int nr_descendants;
 	int nr_dying_descendants;
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/cgroup.h linux-libre-5.1.21-gnu/include/linux/cgroup.h
--- linux-libre-5.1-gnu/include/linux/cgroup.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/cgroup.h	2019-07-28 02:28:39.000000000 -0400
@@ -487,7 +487,7 @@ static inline struct cgroup_subsys_state
  *
  * Find the css for the (@task, @subsys_id) combination, increment a
  * reference on and return it.  This function is guaranteed to return a
- * valid css.
+ * valid css.  The returned css may already have been offlined.
  */
 static inline struct cgroup_subsys_state *
 task_get_css(struct task_struct *task, int subsys_id)
@@ -497,7 +497,13 @@ task_get_css(struct task_struct *task, i
 	rcu_read_lock();
 	while (true) {
 		css = task_css(task, subsys_id);
-		if (likely(css_tryget_online(css)))
+		/*
+		 * Can't use css_tryget_online() here.  A task which has
+		 * PF_EXITING set may stay associated with an offline css.
+		 * If such task calls this function, css_tryget_online()
+		 * will keep failing.
+		 */
+		if (likely(css_tryget(css)))
 			break;
 		cpu_relax();
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/cpu.h linux-libre-5.1.21-gnu/include/linux/cpu.h
--- linux-libre-5.1-gnu/include/linux/cpu.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/cpu.h	2019-07-28 02:28:39.000000000 -0400
@@ -57,6 +57,8 @@ extern ssize_t cpu_show_spec_store_bypas
 					  struct device_attribute *attr, char *buf);
 extern ssize_t cpu_show_l1tf(struct device *dev,
 			     struct device_attribute *attr, char *buf);
+extern ssize_t cpu_show_mds(struct device *dev,
+			    struct device_attribute *attr, char *buf);
 
 extern __printf(4, 5)
 struct device *cpu_device_create(struct device *parent, void *drvdata,
@@ -181,10 +183,38 @@ enum cpuhp_smt_control {
 extern enum cpuhp_smt_control cpu_smt_control;
 extern void cpu_smt_disable(bool force);
 extern void cpu_smt_check_topology(void);
+extern int cpuhp_smt_enable(void);
+extern int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval);
 #else
 # define cpu_smt_control		(CPU_SMT_ENABLED)
 static inline void cpu_smt_disable(bool force) { }
 static inline void cpu_smt_check_topology(void) { }
+static inline int cpuhp_smt_enable(void) { return 0; }
+static inline int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval) { return 0; }
 #endif
 
+/*
+ * These are used for a global "mitigations=" cmdline option for toggling
+ * optional CPU mitigations.
+ */
+enum cpu_mitigations {
+	CPU_MITIGATIONS_OFF,
+	CPU_MITIGATIONS_AUTO,
+	CPU_MITIGATIONS_AUTO_NOSMT,
+};
+
+extern enum cpu_mitigations cpu_mitigations;
+
+/* mitigations=off */
+static inline bool cpu_mitigations_off(void)
+{
+	return cpu_mitigations == CPU_MITIGATIONS_OFF;
+}
+
+/* mitigations=auto,nosmt */
+static inline bool cpu_mitigations_auto_nosmt(void)
+{
+	return cpu_mitigations == CPU_MITIGATIONS_AUTO_NOSMT;
+}
+
 #endif /* _LINUX_CPU_H_ */
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/cpuhotplug.h linux-libre-5.1.21-gnu/include/linux/cpuhotplug.h
--- linux-libre-5.1-gnu/include/linux/cpuhotplug.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/cpuhotplug.h	2019-07-28 02:28:39.000000000 -0400
@@ -101,6 +101,7 @@ enum cpuhp_state {
 	CPUHP_AP_IRQ_BCM2836_STARTING,
 	CPUHP_AP_IRQ_MIPS_GIC_STARTING,
 	CPUHP_AP_ARM_MVEBU_COHERENCY,
+	CPUHP_AP_MICROCODE_LOADER,
 	CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
 	CPUHP_AP_PERF_X86_STARTING,
 	CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
@@ -115,10 +116,10 @@ enum cpuhp_state {
 	CPUHP_AP_PERF_ARM_ACPI_STARTING,
 	CPUHP_AP_PERF_ARM_STARTING,
 	CPUHP_AP_ARM_L2X0_STARTING,
+	CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
 	CPUHP_AP_ARM_ARCH_TIMER_STARTING,
 	CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
 	CPUHP_AP_JCORE_TIMER_STARTING,
-	CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
 	CPUHP_AP_ARM_TWD_STARTING,
 	CPUHP_AP_QCOM_TIMER_STARTING,
 	CPUHP_AP_TEGRA_TIMER_STARTING,
@@ -173,6 +174,7 @@ enum cpuhp_state {
 	CPUHP_AP_WATCHDOG_ONLINE,
 	CPUHP_AP_WORKQUEUE_ONLINE,
 	CPUHP_AP_RCUTREE_ONLINE,
+	CPUHP_AP_BASE_CACHEINFO_ONLINE,
 	CPUHP_AP_ONLINE_DYN,
 	CPUHP_AP_ONLINE_DYN_END		= CPUHP_AP_ONLINE_DYN + 30,
 	CPUHP_AP_X86_HPET_ONLINE,
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/dax.h linux-libre-5.1.21-gnu/include/linux/dax.h
--- linux-libre-5.1-gnu/include/linux/dax.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/dax.h	2019-07-28 02:28:39.000000000 -0400
@@ -19,6 +19,12 @@ struct dax_operations {
 	 */
 	long (*direct_access)(struct dax_device *, pgoff_t, long,
 			void **, pfn_t *);
+	/*
+	 * Validate whether this device is usable as an fsdax backing
+	 * device.
+	 */
+	bool (*dax_supported)(struct dax_device *, struct block_device *, int,
+			sector_t, sector_t);
 	/* copy_from_iter: required operation for fs-dax direct-i/o */
 	size_t (*copy_from_iter)(struct dax_device *, pgoff_t, void *, size_t,
 			struct iov_iter *);
@@ -75,6 +81,17 @@ static inline bool bdev_dax_supported(st
 	return __bdev_dax_supported(bdev, blocksize);
 }
 
+bool __generic_fsdax_supported(struct dax_device *dax_dev,
+		struct block_device *bdev, int blocksize, sector_t start,
+		sector_t sectors);
+static inline bool generic_fsdax_supported(struct dax_device *dax_dev,
+		struct block_device *bdev, int blocksize, sector_t start,
+		sector_t sectors)
+{
+	return __generic_fsdax_supported(dax_dev, bdev, blocksize, start,
+			sectors);
+}
+
 static inline struct dax_device *fs_dax_get_by_host(const char *host)
 {
 	return dax_get_by_host(host);
@@ -99,6 +116,13 @@ static inline bool bdev_dax_supported(st
 	return false;
 }
 
+static inline bool generic_fsdax_supported(struct dax_device *dax_dev,
+		struct block_device *bdev, int blocksize, sector_t start,
+		sector_t sectors)
+{
+	return false;
+}
+
 static inline struct dax_device *fs_dax_get_by_host(const char *host)
 {
 	return NULL;
@@ -142,6 +166,8 @@ bool dax_alive(struct dax_device *dax_de
 void *dax_get_private(struct dax_device *dax_dev);
 long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages,
 		void **kaddr, pfn_t *pfn);
+bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
+		int blocksize, sector_t start, sector_t len);
 size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
 		size_t bytes, struct iov_iter *i);
 size_t dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/dcache.h linux-libre-5.1.21-gnu/include/linux/dcache.h
--- linux-libre-5.1-gnu/include/linux/dcache.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/dcache.h	2019-07-28 02:28:39.000000000 -0400
@@ -176,7 +176,6 @@ struct dentry_operations {
       * typically using d_splice_alias. */
 
 #define DCACHE_REFERENCED		0x00000040 /* Recently used, don't discard. */
-#define DCACHE_RCUACCESS		0x00000080 /* Entry has ever been RCU-visible */
 
 #define DCACHE_CANT_MOUNT		0x00000100
 #define DCACHE_GENOCIDE			0x00000200
@@ -217,6 +216,7 @@ struct dentry_operations {
 
 #define DCACHE_PAR_LOOKUP		0x10000000 /* being looked up (with parent locked shared) */
 #define DCACHE_DENTRY_CURSOR		0x20000000
+#define DCACHE_NORCU			0x40000000 /* No RCU delay for freeing */
 
 extern seqlock_t rename_lock;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/filter.h linux-libre-5.1.21-gnu/include/linux/filter.h
--- linux-libre-5.1-gnu/include/linux/filter.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/filter.h	2019-07-28 02:28:39.000000000 -0400
@@ -746,6 +746,7 @@ static inline void bpf_prog_unlock_ro(st
 static inline void bpf_jit_binary_lock_ro(struct bpf_binary_header *hdr)
 {
 	set_memory_ro((unsigned long)hdr, hdr->pages);
+	set_memory_x((unsigned long)hdr, hdr->pages);
 }
 
 static inline void bpf_jit_binary_unlock_ro(struct bpf_binary_header *hdr)
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/fscrypt.h linux-libre-5.1.21-gnu/include/linux/fscrypt.h
--- linux-libre-5.1-gnu/include/linux/fscrypt.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/fscrypt.h	2019-07-28 02:28:39.000000000 -0400
@@ -79,7 +79,8 @@ struct fscrypt_ctx {
 
 static inline bool fscrypt_has_encryption_key(const struct inode *inode)
 {
-	return (inode->i_crypt_info != NULL);
+	/* pairs with cmpxchg_release() in fscrypt_get_encryption_info() */
+	return READ_ONCE(inode->i_crypt_info) != NULL;
 }
 
 static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/fs.h linux-libre-5.1.21-gnu/include/linux/fs.h
--- linux-libre-5.1-gnu/include/linux/fs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/fs.h	2019-07-28 02:28:39.000000000 -0400
@@ -2703,6 +2703,8 @@ extern int filemap_flush(struct address_
 extern int filemap_fdatawait_keep_errors(struct address_space *mapping);
 extern int filemap_fdatawait_range(struct address_space *, loff_t lstart,
 				   loff_t lend);
+extern int filemap_fdatawait_range_keep_errors(struct address_space *mapping,
+		loff_t start_byte, loff_t end_byte);
 
 static inline int filemap_fdatawait(struct address_space *mapping)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/fsnotify_backend.h linux-libre-5.1.21-gnu/include/linux/fsnotify_backend.h
--- linux-libre-5.1-gnu/include/linux/fsnotify_backend.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/fsnotify_backend.h	2019-07-28 02:28:39.000000000 -0400
@@ -292,7 +292,9 @@ typedef struct fsnotify_mark_connector _
  */
 struct fsnotify_mark_connector {
 	spinlock_t lock;
-	unsigned int type;	/* Type of object [lock] */
+	unsigned short type;	/* Type of object [lock] */
+#define FSNOTIFY_CONN_FLAG_HAS_FSID	0x01
+	unsigned short flags;	/* flags [lock] */
 	__kernel_fsid_t fsid;	/* fsid of filesystem containing object */
 	union {
 		/* Object pointer [lock] */
@@ -355,6 +357,7 @@ extern int __fsnotify_parent(const struc
 extern void __fsnotify_inode_delete(struct inode *inode);
 extern void __fsnotify_vfsmount_delete(struct vfsmount *mnt);
 extern void fsnotify_sb_delete(struct super_block *sb);
+extern void fsnotify_nameremove(struct dentry *dentry, int isdir);
 extern u32 fsnotify_get_cookie(void);
 
 static inline int fsnotify_inode_watches_children(struct inode *inode)
@@ -524,6 +527,9 @@ static inline void __fsnotify_vfsmount_d
 static inline void fsnotify_sb_delete(struct super_block *sb)
 {}
 
+static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
+{}
+
 static inline void fsnotify_update_flags(struct dentry *dentry)
 {}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/fsnotify.h linux-libre-5.1.21-gnu/include/linux/fsnotify.h
--- linux-libre-5.1-gnu/include/linux/fsnotify.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/fsnotify.h	2019-07-28 02:28:39.000000000 -0400
@@ -152,39 +152,6 @@ static inline void fsnotify_vfsmount_del
 }
 
 /*
- * fsnotify_nameremove - a filename was removed from a directory
- *
- * This is mostly called under parent vfs inode lock so name and
- * dentry->d_parent should be stable. However there are some corner cases where
- * inode lock is not held. So to be on the safe side and be reselient to future
- * callers and out of tree users of d_delete(), we do not assume that d_parent
- * and d_name are stable and we use dget_parent() and
- * take_dentry_name_snapshot() to grab stable references.
- */
-static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
-{
-	struct dentry *parent;
-	struct name_snapshot name;
-	__u32 mask = FS_DELETE;
-
-	/* d_delete() of pseudo inode? (e.g. __ns_get_path() playing tricks) */
-	if (IS_ROOT(dentry))
-		return;
-
-	if (isdir)
-		mask |= FS_ISDIR;
-
-	parent = dget_parent(dentry);
-	take_dentry_name_snapshot(&name, dentry);
-
-	fsnotify(d_inode(parent), mask, d_inode(dentry), FSNOTIFY_EVENT_INODE,
-		 name.name, 0);
-
-	release_dentry_name_snapshot(&name);
-	dput(parent);
-}
-
-/*
  * fsnotify_inoderemove - an inode is going away
  */
 static inline void fsnotify_inoderemove(struct inode *inode)
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/genhd.h linux-libre-5.1.21-gnu/include/linux/genhd.h
--- linux-libre-5.1-gnu/include/linux/genhd.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/genhd.h	2019-07-28 02:28:39.000000000 -0400
@@ -610,6 +610,7 @@ struct unixware_disklabel {
 
 extern int blk_alloc_devt(struct hd_struct *part, dev_t *devt);
 extern void blk_free_devt(dev_t devt);
+extern void blk_invalidate_devt(dev_t devt);
 extern dev_t blk_lookup_devt(const char *name, int partno);
 extern char *disk_name (struct gendisk *hd, int partno, char *buf);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/hid.h linux-libre-5.1.21-gnu/include/linux/hid.h
--- linux-libre-5.1-gnu/include/linux/hid.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/hid.h	2019-07-28 02:28:39.000000000 -0400
@@ -417,6 +417,7 @@ struct hid_global {
 
 struct hid_local {
 	unsigned usage[HID_MAX_USAGES]; /* usage array */
+	u8 usage_size[HID_MAX_USAGES]; /* usage size array */
 	unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
 	unsigned usage_index;
 	unsigned usage_minimum;
@@ -893,7 +894,7 @@ struct hid_field *hidinput_get_led_field
 unsigned int hidinput_count_leds(struct hid_device *hid);
 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code);
 void hid_output_report(struct hid_report *report, __u8 *data);
-void __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype);
+int __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype);
 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags);
 struct hid_device *hid_allocate_device(void);
 struct hid_report *hid_register_report(struct hid_device *device,
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/huge_mm.h linux-libre-5.1.21-gnu/include/linux/huge_mm.h
--- linux-libre-5.1-gnu/include/linux/huge_mm.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/huge_mm.h	2019-07-28 02:28:39.000000000 -0400
@@ -47,10 +47,8 @@ extern bool move_huge_pmd(struct vm_area
 extern int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 			unsigned long addr, pgprot_t newprot,
 			int prot_numa);
-vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr,
-			pmd_t *pmd, pfn_t pfn, bool write);
-vm_fault_t vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr,
-			pud_t *pud, pfn_t pfn, bool write);
+vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, pfn_t pfn, bool write);
+vm_fault_t vmf_insert_pfn_pud(struct vm_fault *vmf, pfn_t pfn, bool write);
 enum transparent_hugepage_flag {
 	TRANSPARENT_HUGEPAGE_FLAG,
 	TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG,
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/hugetlb.h linux-libre-5.1.21-gnu/include/linux/hugetlb.h
--- linux-libre-5.1-gnu/include/linux/hugetlb.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/hugetlb.h	2019-07-28 02:28:39.000000000 -0400
@@ -123,9 +123,7 @@ void move_hugetlb_state(struct page *old
 void free_huge_page(struct page *page);
 void hugetlb_fix_reserve_counts(struct inode *inode);
 extern struct mutex *hugetlb_fault_mutex_table;
-u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm,
-				struct vm_area_struct *vma,
-				struct address_space *mapping,
+u32 hugetlb_fault_mutex_hash(struct hstate *h, struct address_space *mapping,
 				pgoff_t idx, unsigned long address);
 
 pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/i2c.h linux-libre-5.1.21-gnu/include/linux/i2c.h
--- linux-libre-5.1-gnu/include/linux/i2c.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/i2c.h	2019-07-28 02:28:39.000000000 -0400
@@ -682,7 +682,8 @@ struct i2c_adapter {
 	int retries;
 	struct device dev;		/* the adapter device */
 	unsigned long locked_flags;	/* owned by the I2C core */
-#define I2C_ALF_IS_SUSPENDED	0
+#define I2C_ALF_IS_SUSPENDED		0
+#define I2C_ALF_SUSPEND_REPORTED	1
 
 	int nr;
 	char name[48];
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/iio/adc/ad_sigma_delta.h linux-libre-5.1.21-gnu/include/linux/iio/adc/ad_sigma_delta.h
--- linux-libre-5.1-gnu/include/linux/iio/adc/ad_sigma_delta.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/iio/adc/ad_sigma_delta.h	2019-07-28 02:28:39.000000000 -0400
@@ -69,6 +69,7 @@ struct ad_sigma_delta {
 	bool			irq_dis;
 
 	bool			bus_locked;
+	bool			keep_cs_asserted;
 
 	uint8_t			comm;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/jbd2.h linux-libre-5.1.21-gnu/include/linux/jbd2.h
--- linux-libre-5.1-gnu/include/linux/jbd2.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/jbd2.h	2019-07-28 02:28:39.000000000 -0400
@@ -454,6 +454,22 @@ struct jbd2_inode {
 	 * @i_flags: Flags of inode [j_list_lock]
 	 */
 	unsigned long i_flags;
+
+	/**
+	 * @i_dirty_start:
+	 *
+	 * Offset in bytes where the dirty range for this inode starts.
+	 * [j_list_lock]
+	 */
+	loff_t i_dirty_start;
+
+	/**
+	 * @i_dirty_end:
+	 *
+	 * Inclusive offset in bytes where the dirty range for this inode
+	 * ends. [j_list_lock]
+	 */
+	loff_t i_dirty_end;
 };
 
 struct jbd2_revoke_table_s;
@@ -1318,7 +1334,7 @@ extern void		__wait_on_journal (journal_
 
 /* Transaction cache support */
 extern void jbd2_journal_destroy_transaction_cache(void);
-extern int  jbd2_journal_init_transaction_cache(void);
+extern int __init jbd2_journal_init_transaction_cache(void);
 extern void jbd2_journal_free_transaction(transaction_t *);
 
 /*
@@ -1400,6 +1416,12 @@ extern int	   jbd2_journal_force_commit(
 extern int	   jbd2_journal_force_commit_nested(journal_t *);
 extern int	   jbd2_journal_inode_add_write(handle_t *handle, struct jbd2_inode *inode);
 extern int	   jbd2_journal_inode_add_wait(handle_t *handle, struct jbd2_inode *inode);
+extern int	   jbd2_journal_inode_ranged_write(handle_t *handle,
+			struct jbd2_inode *inode, loff_t start_byte,
+			loff_t length);
+extern int	   jbd2_journal_inode_ranged_wait(handle_t *handle,
+			struct jbd2_inode *inode, loff_t start_byte,
+			loff_t length);
 extern int	   jbd2_journal_begin_ordered_truncate(journal_t *journal,
 				struct jbd2_inode *inode, loff_t new_size);
 extern void	   jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode);
@@ -1446,8 +1468,10 @@ static inline void jbd2_free_inode(struc
 /* Primary revoke support */
 #define JOURNAL_REVOKE_DEFAULT_HASH 256
 extern int	   jbd2_journal_init_revoke(journal_t *, int);
-extern void	   jbd2_journal_destroy_revoke_caches(void);
-extern int	   jbd2_journal_init_revoke_caches(void);
+extern void	   jbd2_journal_destroy_revoke_record_cache(void);
+extern void	   jbd2_journal_destroy_revoke_table_cache(void);
+extern int __init jbd2_journal_init_revoke_record_cache(void);
+extern int __init jbd2_journal_init_revoke_table_cache(void);
 
 extern void	   jbd2_journal_destroy_revoke(journal_t *);
 extern int	   jbd2_journal_revoke (handle_t *, unsigned long long, struct buffer_head *);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/kernel.h linux-libre-5.1.21-gnu/include/linux/kernel.h
--- linux-libre-5.1-gnu/include/linux/kernel.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/kernel.h	2019-07-28 02:28:39.000000000 -0400
@@ -92,7 +92,8 @@
 #define DIV_ROUND_DOWN_ULL(ll, d) \
 	({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
 
-#define DIV_ROUND_UP_ULL(ll, d)		DIV_ROUND_DOWN_ULL((ll) + (d) - 1, (d))
+#define DIV_ROUND_UP_ULL(ll, d) \
+	DIV_ROUND_DOWN_ULL((unsigned long long)(ll) + (d) - 1, (d))
 
 #if BITS_PER_LONG == 32
 # define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d)
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/list_lru.h linux-libre-5.1.21-gnu/include/linux/list_lru.h
--- linux-libre-5.1-gnu/include/linux/list_lru.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/list_lru.h	2019-07-28 02:28:39.000000000 -0400
@@ -54,6 +54,7 @@ struct list_lru {
 #ifdef CONFIG_MEMCG_KMEM
 	struct list_head	list;
 	int			shrinker_id;
+	bool			memcg_aware;
 #endif
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/memcontrol.h linux-libre-5.1.21-gnu/include/linux/memcontrol.h
--- linux-libre-5.1-gnu/include/linux/memcontrol.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/memcontrol.h	2019-07-28 02:28:39.000000000 -0400
@@ -777,8 +777,14 @@ static inline void count_memcg_event_mm(
 static inline void memcg_memory_event(struct mem_cgroup *memcg,
 				      enum memcg_memory_event event)
 {
-	atomic_long_inc(&memcg->memory_events[event]);
-	cgroup_file_notify(&memcg->events_file);
+	do {
+		atomic_long_inc(&memcg->memory_events[event]);
+		cgroup_file_notify(&memcg->events_file);
+
+		if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+			break;
+	} while ((memcg = parent_mem_cgroup(memcg)) &&
+		 !mem_cgroup_is_root(memcg));
 }
 
 static inline void memcg_memory_event_mm(struct mm_struct *mm,
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mfd/da9063/registers.h linux-libre-5.1.21-gnu/include/linux/mfd/da9063/registers.h
--- linux-libre-5.1-gnu/include/linux/mfd/da9063/registers.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mfd/da9063/registers.h	2019-07-28 02:28:39.000000000 -0400
@@ -215,9 +215,9 @@
 
 /* DA9063 Configuration registers */
 /* OTP */
-#define	DA9063_REG_OPT_COUNT		0x101
-#define	DA9063_REG_OPT_ADDR		0x102
-#define	DA9063_REG_OPT_DATA		0x103
+#define	DA9063_REG_OTP_CONT		0x101
+#define	DA9063_REG_OTP_ADDR		0x102
+#define	DA9063_REG_OTP_DATA		0x103
 
 /* Customer Trim and Configuration */
 #define	DA9063_REG_T_OFFSET		0x104
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mfd/max77620.h linux-libre-5.1.21-gnu/include/linux/mfd/max77620.h
--- linux-libre-5.1-gnu/include/linux/mfd/max77620.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mfd/max77620.h	2019-07-28 02:28:39.000000000 -0400
@@ -136,8 +136,8 @@
 #define MAX77620_FPS_PERIOD_MIN_US		40
 #define MAX20024_FPS_PERIOD_MIN_US		20
 
-#define MAX77620_FPS_PERIOD_MAX_US		2560
-#define MAX20024_FPS_PERIOD_MAX_US		5120
+#define MAX20024_FPS_PERIOD_MAX_US		2560
+#define MAX77620_FPS_PERIOD_MAX_US		5120
 
 #define MAX77620_REG_FPS_GPIO1			0x54
 #define MAX77620_REG_FPS_GPIO2			0x55
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mlx5/driver.h linux-libre-5.1.21-gnu/include/linux/mlx5/driver.h
--- linux-libre-5.1-gnu/include/linux/mlx5/driver.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mlx5/driver.h	2019-07-28 02:28:39.000000000 -0400
@@ -681,7 +681,6 @@ struct mlx5_core_dev {
 #endif
 	struct mlx5_clock        clock;
 	struct mlx5_ib_clock_info  *clock_info;
-	struct page             *clock_info_page;
 	struct mlx5_fw_tracer   *tracer;
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mlx5/eswitch.h linux-libre-5.1.21-gnu/include/linux/mlx5/eswitch.h
--- linux-libre-5.1-gnu/include/linux/mlx5/eswitch.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mlx5/eswitch.h	2019-07-28 02:28:39.000000000 -0400
@@ -35,7 +35,7 @@ struct mlx5_eswitch_rep_if {
 	void		       (*unload)(struct mlx5_eswitch_rep *rep);
 	void		       *(*get_proto_dev)(struct mlx5_eswitch_rep *rep);
 	void			*priv;
-	u8			state;
+	atomic_t		state;
 };
 
 struct mlx5_eswitch_rep {
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mlx5/mlx5_ifc.h linux-libre-5.1.21-gnu/include/linux/mlx5/mlx5_ifc.h
--- linux-libre-5.1-gnu/include/linux/mlx5/mlx5_ifc.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mlx5/mlx5_ifc.h	2019-07-28 02:28:39.000000000 -0400
@@ -716,7 +716,8 @@ struct mlx5_ifc_per_protocol_networking_
 	u8         swp[0x1];
 	u8         swp_csum[0x1];
 	u8         swp_lso[0x1];
-	u8         reserved_at_23[0xd];
+	u8         cqe_checksum_full[0x1];
+	u8         reserved_at_24[0xc];
 	u8         max_vxlan_udp_ports[0x8];
 	u8         reserved_at_38[0x6];
 	u8         max_geneve_opt_len[0x1];
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mmc/host.h linux-libre-5.1.21-gnu/include/linux/mmc/host.h
--- linux-libre-5.1-gnu/include/linux/mmc/host.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mmc/host.h	2019-07-28 02:28:39.000000000 -0400
@@ -398,6 +398,7 @@ struct mmc_host {
 	unsigned int		retune_now:1;	/* do re-tuning at next req */
 	unsigned int		retune_paused:1; /* re-tuning is temporarily disabled */
 	unsigned int		use_blk_mq:1;	/* use blk-mq */
+	unsigned int		retune_crc_disable:1; /* don't trigger retune upon crc */
 
 	int			rescan_disable;	/* disable card detection */
 	int			rescan_entered;	/* used with nonremovable devices */
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mmc/sdio_func.h linux-libre-5.1.21-gnu/include/linux/mmc/sdio_func.h
--- linux-libre-5.1-gnu/include/linux/mmc/sdio_func.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mmc/sdio_func.h	2019-07-28 02:28:39.000000000 -0400
@@ -159,4 +159,10 @@ extern void sdio_f0_writeb(struct sdio_f
 extern mmc_pm_flag_t sdio_get_host_pm_caps(struct sdio_func *func);
 extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags);
 
+extern void sdio_retune_crc_disable(struct sdio_func *func);
+extern void sdio_retune_crc_enable(struct sdio_func *func);
+
+extern void sdio_retune_hold_now(struct sdio_func *func);
+extern void sdio_retune_release(struct sdio_func *func);
+
 #endif /* LINUX_MMC_SDIO_FUNC_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mm.h linux-libre-5.1.21-gnu/include/linux/mm.h
--- linux-libre-5.1-gnu/include/linux/mm.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mm.h	2019-07-28 02:28:39.000000000 -0400
@@ -590,6 +590,11 @@ static inline bool is_vmalloc_addr(const
 	return false;
 #endif
 }
+
+#ifndef is_ioremap_addr
+#define is_ioremap_addr(x) is_vmalloc_addr(x)
+#endif
+
 #ifdef CONFIG_MMU
 extern int is_vmalloc_or_module_addr(const void *x);
 #else
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/mount.h linux-libre-5.1.21-gnu/include/linux/mount.h
--- linux-libre-5.1-gnu/include/linux/mount.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/mount.h	2019-07-28 02:28:39.000000000 -0400
@@ -87,6 +87,8 @@ extern bool mnt_may_suid(struct vfsmount
 
 struct path;
 extern struct vfsmount *clone_private_mount(const struct path *path);
+extern int __mnt_want_write(struct vfsmount *);
+extern void __mnt_drop_write(struct vfsmount *);
 
 struct file_system_type;
 extern struct vfsmount *fc_mount(struct fs_context *fc);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/of.h linux-libre-5.1.21-gnu/include/linux/of.h
--- linux-libre-5.1-gnu/include/linux/of.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/of.h	2019-07-28 02:28:39.000000000 -0400
@@ -234,8 +234,8 @@ extern struct device_node *of_find_all_n
 static inline u64 of_read_number(const __be32 *cell, int size)
 {
 	u64 r = 0;
-	while (size--)
-		r = (r << 32) | be32_to_cpu(*(cell++));
+	for (; size--; cell++)
+		r = (r << 32) | be32_to_cpu(*cell);
 	return r;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/overflow.h linux-libre-5.1.21-gnu/include/linux/overflow.h
--- linux-libre-5.1-gnu/include/linux/overflow.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/overflow.h	2019-07-28 02:28:39.000000000 -0400
@@ -36,6 +36,12 @@
 #define type_max(T) ((T)((__type_half_max(T) - 1) + __type_half_max(T)))
 #define type_min(T) ((T)((T)-type_max(T)-(T)1))
 
+/*
+ * Avoids triggering -Wtype-limits compilation warning,
+ * while using unsigned data types to check a < 0.
+ */
+#define is_non_negative(a) ((a) > 0 || (a) == 0)
+#define is_negative(a) (!(is_non_negative(a)))
 
 #ifdef COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW
 /*
@@ -227,10 +233,10 @@
 	typeof(d) _d = d;						\
 	u64 _a_full = _a;						\
 	unsigned int _to_shift =					\
-		_s >= 0 && _s < 8 * sizeof(*d) ? _s : 0;		\
+		is_non_negative(_s) && _s < 8 * sizeof(*d) ? _s : 0;	\
 	*_d = (_a_full << _to_shift);					\
-	(_to_shift != _s || *_d < 0 || _a < 0 ||			\
-		(*_d >> _to_shift) != _a);				\
+	(_to_shift != _s || is_negative(*_d) || is_negative(_a) ||	\
+	(*_d >> _to_shift) != _a);					\
 })
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/pci.h linux-libre-5.1.21-gnu/include/linux/pci.h
--- linux-libre-5.1-gnu/include/linux/pci.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/pci.h	2019-07-28 02:28:39.000000000 -0400
@@ -348,6 +348,8 @@ struct pci_dev {
 	unsigned int	hotplug_user_indicators:1; /* SlotCtl indicators
 						      controlled exclusively by
 						      user sysfs */
+	unsigned int	clear_retrain_link:1;	/* Need to clear Retrain Link
+						   bit manually */
 	unsigned int	d3_delay;	/* D3->D0 transition time in ms */
 	unsigned int	d3cold_delay;	/* D3cold->D0 transition time in ms */
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/perf_event.h linux-libre-5.1.21-gnu/include/linux/perf_event.h
--- linux-libre-5.1-gnu/include/linux/perf_event.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/perf_event.h	2019-07-28 02:28:39.000000000 -0400
@@ -1044,6 +1044,11 @@ static inline int in_software_context(st
 	return event->ctx->pmu->task_ctx_nr == perf_sw_context;
 }
 
+static inline int is_exclusive_pmu(struct pmu *pmu)
+{
+	return pmu->capabilities & PERF_PMU_CAP_EXCLUSIVE;
+}
+
 extern struct static_key perf_swevent_enabled[PERF_COUNT_SW_MAX];
 
 extern void ___perf_sw_event(u32, u64, struct pt_regs *, u64);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/pwm.h linux-libre-5.1.21-gnu/include/linux/pwm.h
--- linux-libre-5.1-gnu/include/linux/pwm.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/pwm.h	2019-07-28 02:28:39.000000000 -0400
@@ -596,7 +596,6 @@ static inline void pwm_remove_table(stru
 #ifdef CONFIG_PWM_SYSFS
 void pwmchip_sysfs_export(struct pwm_chip *chip);
 void pwmchip_sysfs_unexport(struct pwm_chip *chip);
-void pwmchip_sysfs_unexport_children(struct pwm_chip *chip);
 #else
 static inline void pwmchip_sysfs_export(struct pwm_chip *chip)
 {
@@ -605,10 +604,6 @@ static inline void pwmchip_sysfs_export(
 static inline void pwmchip_sysfs_unexport(struct pwm_chip *chip)
 {
 }
-
-static inline void pwmchip_sysfs_unexport_children(struct pwm_chip *chip)
-{
-}
 #endif /* CONFIG_PWM_SYSFS */
 
 #endif /* __LINUX_PWM_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/rcupdate.h linux-libre-5.1.21-gnu/include/linux/rcupdate.h
--- linux-libre-5.1-gnu/include/linux/rcupdate.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/rcupdate.h	2019-07-28 02:28:39.000000000 -0400
@@ -56,14 +56,12 @@ void __rcu_read_unlock(void);
 
 static inline void __rcu_read_lock(void)
 {
-	if (IS_ENABLED(CONFIG_PREEMPT_COUNT))
-		preempt_disable();
+	preempt_disable();
 }
 
 static inline void __rcu_read_unlock(void)
 {
-	if (IS_ENABLED(CONFIG_PREEMPT_COUNT))
-		preempt_enable();
+	preempt_enable();
 }
 
 static inline int rcu_preempt_depth(void)
@@ -588,7 +586,7 @@ static inline void rcu_preempt_sleep_che
  * read-side critical sections may be preempted and they may also block, but
  * only when acquiring spinlocks that are subject to priority inheritance.
  */
-static inline void rcu_read_lock(void)
+static __always_inline void rcu_read_lock(void)
 {
 	__rcu_read_lock();
 	__acquire(RCU);
@@ -878,9 +876,11 @@ static inline void rcu_head_init(struct
 static inline bool
 rcu_head_after_call_rcu(struct rcu_head *rhp, rcu_callback_t f)
 {
-	if (READ_ONCE(rhp->func) == f)
+	rcu_callback_t func = READ_ONCE(rhp->func);
+
+	if (func == f)
 		return true;
-	WARN_ON_ONCE(READ_ONCE(rhp->func) != (rcu_callback_t)~0L);
+	WARN_ON_ONCE(func != (rcu_callback_t)~0L);
 	return false;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/regulator/consumer.h linux-libre-5.1.21-gnu/include/linux/regulator/consumer.h
--- linux-libre-5.1-gnu/include/linux/regulator/consumer.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/regulator/consumer.h	2019-07-28 02:28:39.000000000 -0400
@@ -478,6 +478,11 @@ static inline int regulator_is_supported
 	return 0;
 }
 
+static inline unsigned int regulator_get_linear_step(struct regulator *regulator)
+{
+	return 0;
+}
+
 static inline int regulator_set_current_limit(struct regulator *regulator,
 					     int min_uA, int max_uA)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/sched/mm.h linux-libre-5.1.21-gnu/include/linux/sched/mm.h
--- linux-libre-5.1-gnu/include/linux/sched/mm.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/sched/mm.h	2019-07-28 02:28:39.000000000 -0400
@@ -54,6 +54,10 @@ static inline void mmdrop(struct mm_stru
  * followed by taking the mmap_sem for writing before modifying the
  * vmas or anything the coredump pretends not to change from under it.
  *
+ * It also has to be called when mmgrab() is used in the context of
+ * the process, but then the mm_count refcount is transferred outside
+ * the context of the process to run down_write() on that pinned mm.
+ *
  * NOTE: find_extend_vma() called from GUP context is the only place
  * that can modify the "mm" (notably the vm_start/end) under mmap_sem
  * for reading and outside the context of the process, so it is also
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/sched/signal.h linux-libre-5.1.21-gnu/include/linux/sched/signal.h
--- linux-libre-5.1-gnu/include/linux/sched/signal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/sched/signal.h	2019-07-28 02:28:39.000000000 -0400
@@ -328,7 +328,7 @@ extern void force_sigsegv(int sig, struc
 extern int force_sig_info(int, struct kernel_siginfo *, struct task_struct *);
 extern int __kill_pgrp_info(int sig, struct kernel_siginfo *info, struct pid *pgrp);
 extern int kill_pid_info(int sig, struct kernel_siginfo *info, struct pid *pid);
-extern int kill_pid_info_as_cred(int, struct kernel_siginfo *, struct pid *,
+extern int kill_pid_usb_asyncio(int sig, int errno, sigval_t addr, struct pid *,
 				const struct cred *);
 extern int kill_pgrp(struct pid *pid, int sig, int priv);
 extern int kill_pid(struct pid *pid, int sig, int priv);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/signal.h linux-libre-5.1.21-gnu/include/linux/signal.h
--- linux-libre-5.1-gnu/include/linux/signal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/signal.h	2019-07-28 02:28:39.000000000 -0400
@@ -276,7 +276,7 @@ extern int sigprocmask(int, sigset_t *,
 extern int set_user_sigmask(const sigset_t __user *usigmask, sigset_t *set,
 	sigset_t *oldset, size_t sigsetsize);
 extern void restore_user_sigmask(const void __user *usigmask,
-				 sigset_t *sigsaved);
+				 sigset_t *sigsaved, bool interrupted);
 extern void set_current_blocked(sigset_t *);
 extern void __set_current_blocked(const sigset_t *);
 extern int show_unhandled_signals;
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/siphash.h linux-libre-5.1.21-gnu/include/linux/siphash.h
--- linux-libre-5.1-gnu/include/linux/siphash.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/siphash.h	2019-07-28 02:28:39.000000000 -0400
@@ -21,6 +21,11 @@ typedef struct {
 	u64 key[2];
 } siphash_key_t;
 
+static inline bool siphash_key_is_zero(const siphash_key_t *key)
+{
+	return !(key->key[0] | key->key[1]);
+}
+
 u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key);
 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u64 __siphash_unaligned(const void *data, size_t len, const siphash_key_t *key);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/skbuff.h linux-libre-5.1.21-gnu/include/linux/skbuff.h
--- linux-libre-5.1-gnu/include/linux/skbuff.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/skbuff.h	2019-07-28 02:28:39.000000000 -0400
@@ -1425,10 +1425,12 @@ static inline void skb_zcopy_clear(struc
 	struct ubuf_info *uarg = skb_zcopy(skb);
 
 	if (uarg) {
-		if (uarg->callback == sock_zerocopy_callback) {
+		if (skb_zcopy_is_nouarg(skb)) {
+			/* no notification callback */
+		} else if (uarg->callback == sock_zerocopy_callback) {
 			uarg->zerocopy = uarg->zerocopy && zerocopy;
 			sock_zerocopy_put(uarg);
-		} else if (!skb_zcopy_is_nouarg(skb)) {
+		} else {
 			uarg->callback(uarg, zerocopy);
 		}
 
@@ -2683,7 +2685,8 @@ static inline int skb_orphan_frags(struc
 {
 	if (likely(!skb_zcopy(skb)))
 		return 0;
-	if (skb_uarg(skb)->callback == sock_zerocopy_callback)
+	if (!skb_zcopy_is_nouarg(skb) &&
+	    skb_uarg(skb)->callback == sock_zerocopy_callback)
 		return 0;
 	return skb_copy_ubufs(skb, gfp_mask);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/skmsg.h linux-libre-5.1.21-gnu/include/linux/skmsg.h
--- linux-libre-5.1-gnu/include/linux/skmsg.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/skmsg.h	2019-07-28 02:28:39.000000000 -0400
@@ -351,6 +351,8 @@ static inline void sk_psock_update_proto
 static inline void sk_psock_restore_proto(struct sock *sk,
 					  struct sk_psock *psock)
 {
+	sk->sk_write_space = psock->saved_write_space;
+
 	if (psock->sk_proto) {
 		sk->sk_prot = psock->sk_proto;
 		psock->sk_proto = NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/smpboot.h linux-libre-5.1.21-gnu/include/linux/smpboot.h
--- linux-libre-5.1-gnu/include/linux/smpboot.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/smpboot.h	2019-07-28 02:28:39.000000000 -0400
@@ -29,7 +29,7 @@ struct smpboot_thread_data;
  * @thread_comm:	The base name of the thread
  */
 struct smp_hotplug_thread {
-	struct task_struct __percpu	**store;
+	struct task_struct		* __percpu *store;
 	struct list_head		list;
 	int				(*thread_should_run)(unsigned int cpu);
 	void				(*thread_fn)(unsigned int cpu);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/tcp.h linux-libre-5.1.21-gnu/include/linux/tcp.h
--- linux-libre-5.1-gnu/include/linux/tcp.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/tcp.h	2019-07-28 02:28:39.000000000 -0400
@@ -488,4 +488,8 @@ static inline u16 tcp_mss_clamp(const st
 
 	return (user_mss && user_mss < mss) ? user_mss : mss;
 }
+
+int tcp_skb_shift(struct sk_buff *to, struct sk_buff *from, int pcount,
+		  int shiftlen);
+
 #endif	/* _LINUX_TCP_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/time64.h linux-libre-5.1.21-gnu/include/linux/time64.h
--- linux-libre-5.1-gnu/include/linux/time64.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/time64.h	2019-07-28 02:28:39.000000000 -0400
@@ -33,6 +33,17 @@ struct itimerspec64 {
 #define KTIME_MAX			((s64)~((u64)1 << 63))
 #define KTIME_SEC_MAX			(KTIME_MAX / NSEC_PER_SEC)
 
+/*
+ * Limits for settimeofday():
+ *
+ * To prevent setting the time close to the wraparound point time setting
+ * is limited so a reasonable uptime can be accomodated. Uptime of 30 years
+ * should be really sufficient, which means the cutoff is 2232. At that
+ * point the cutoff is just a small part of the larger problem.
+ */
+#define TIME_UPTIME_SEC_MAX		(30LL * 365 * 24 *3600)
+#define TIME_SETTOD_SEC_MAX		(KTIME_SEC_MAX - TIME_UPTIME_SEC_MAX)
+
 static inline int timespec64_equal(const struct timespec64 *a,
 				   const struct timespec64 *b)
 {
@@ -99,6 +110,16 @@ static inline bool timespec64_valid_stri
 		return false;
 	return true;
 }
+
+static inline bool timespec64_valid_settod(const struct timespec64 *ts)
+{
+	if (!timespec64_valid(ts))
+		return false;
+	/* Disallow values which cause overflow issues vs. CLOCK_REALTIME */
+	if ((unsigned long long)ts->tv_sec >= TIME_SETTOD_SEC_MAX)
+		return false;
+	return true;
+}
 
 /**
  * timespec64_to_ns - Convert timespec64 to nanoseconds
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/vmw_vmci_defs.h linux-libre-5.1.21-gnu/include/linux/vmw_vmci_defs.h
--- linux-libre-5.1-gnu/include/linux/vmw_vmci_defs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/vmw_vmci_defs.h	2019-07-28 02:28:39.000000000 -0400
@@ -69,9 +69,18 @@ enum {
 
 /*
  * A single VMCI device has an upper limit of 128MB on the amount of
- * memory that can be used for queue pairs.
+ * memory that can be used for queue pairs. Since each queue pair
+ * consists of at least two pages, the memory limit also dictates the
+ * number of queue pairs a guest can create.
  */
 #define VMCI_MAX_GUEST_QP_MEMORY (128 * 1024 * 1024)
+#define VMCI_MAX_GUEST_QP_COUNT  (VMCI_MAX_GUEST_QP_MEMORY / PAGE_SIZE / 2)
+
+/*
+ * There can be at most PAGE_SIZE doorbells since there is one doorbell
+ * per byte in the doorbell bitmap page.
+ */
+#define VMCI_MAX_GUEST_DOORBELL_COUNT PAGE_SIZE
 
 /*
  * Queues with pre-mapped data pages must be small, so that we don't pin
diff -druNp --no-dereference linux-libre-5.1-gnu/include/linux/xarray.h linux-libre-5.1.21-gnu/include/linux/xarray.h
--- linux-libre-5.1-gnu/include/linux/xarray.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/linux/xarray.h	2019-07-28 02:28:39.000000000 -0400
@@ -265,6 +265,7 @@ enum xa_lock_type {
 #define XA_FLAGS_TRACK_FREE	((__force gfp_t)4U)
 #define XA_FLAGS_ZERO_BUSY	((__force gfp_t)8U)
 #define XA_FLAGS_ALLOC_WRAPPED	((__force gfp_t)16U)
+#define XA_FLAGS_ACCOUNT	((__force gfp_t)32U)
 #define XA_FLAGS_MARK(mark)	((__force gfp_t)((1U << __GFP_BITS_SHIFT) << \
 						(__force unsigned)(mark)))
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/media/v4l2-ctrls.h linux-libre-5.1.21-gnu/include/media/v4l2-ctrls.h
--- linux-libre-5.1-gnu/include/media/v4l2-ctrls.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/media/v4l2-ctrls.h	2019-07-28 02:28:39.000000000 -0400
@@ -1127,7 +1127,7 @@ __poll_t v4l2_ctrl_poll(struct file *fil
  * applying control values in a request is only applicable to memory-to-memory
  * devices.
  */
-void v4l2_ctrl_request_setup(struct media_request *req,
+int v4l2_ctrl_request_setup(struct media_request *req,
 			     struct v4l2_ctrl_handler *parent);
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/include/media/videobuf2-core.h linux-libre-5.1.21-gnu/include/media/videobuf2-core.h
--- linux-libre-5.1-gnu/include/media/videobuf2-core.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/media/videobuf2-core.h	2019-07-28 02:28:39.000000000 -0400
@@ -595,6 +595,7 @@ struct vb2_queue {
 	unsigned int			start_streaming_called:1;
 	unsigned int			error:1;
 	unsigned int			waiting_for_buffers:1;
+	unsigned int			waiting_in_dqbuf:1;
 	unsigned int			is_multiplanar:1;
 	unsigned int			is_output:1;
 	unsigned int			copy_timestamp:1;
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/arp.h linux-libre-5.1.21-gnu/include/net/arp.h
--- linux-libre-5.1-gnu/include/net/arp.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/arp.h	2019-07-28 02:28:39.000000000 -0400
@@ -18,6 +18,7 @@ static inline u32 arp_hashfn(const void
 	return val * hash_rnd[0];
 }
 
+#ifdef CONFIG_INET
 static inline struct neighbour *__ipv4_neigh_lookup_noref(struct net_device *dev, u32 key)
 {
 	if (dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))
@@ -25,6 +26,13 @@ static inline struct neighbour *__ipv4_n
 
 	return ___neigh_lookup_noref(&arp_tbl, neigh_key_eq32, arp_hashfn, &key, dev);
 }
+#else
+static inline
+struct neighbour *__ipv4_neigh_lookup_noref(struct net_device *dev, u32 key)
+{
+	return NULL;
+}
+#endif
 
 static inline struct neighbour *__ipv4_neigh_lookup(struct net_device *dev, u32 key)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/bluetooth/hci_core.h linux-libre-5.1.21-gnu/include/net/bluetooth/hci_core.h
--- linux-libre-5.1-gnu/include/net/bluetooth/hci_core.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/bluetooth/hci_core.h	2019-07-28 02:28:39.000000000 -0400
@@ -190,6 +190,9 @@ struct adv_info {
 
 #define HCI_MAX_SHORT_NAME_LENGTH	10
 
+/* Min encryption key size to match with SMP */
+#define HCI_MIN_ENC_KEY_SIZE		7
+
 /* Default LE RPA expiry time, 15 minutes */
 #define HCI_DEFAULT_RPA_TIMEOUT		(15 * 60)
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/bluetooth/hci.h linux-libre-5.1.21-gnu/include/net/bluetooth/hci.h
--- linux-libre-5.1-gnu/include/net/bluetooth/hci.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/bluetooth/hci.h	2019-07-28 02:28:39.000000000 -0400
@@ -282,6 +282,7 @@ enum {
 	HCI_FORCE_BREDR_SMP,
 	HCI_FORCE_STATIC_ADDR,
 	HCI_LL_RPA_RESOLUTION,
+	HCI_CMD_PENDING,
 
 	__HCI_NUM_FLAGS,
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/cfg80211.h linux-libre-5.1.21-gnu/include/net/cfg80211.h
--- linux-libre-5.1-gnu/include/net/cfg80211.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/cfg80211.h	2019-07-28 02:28:39.000000000 -0400
@@ -3767,7 +3767,8 @@ struct cfg80211_ops {
  *	on wiphy_new(), but can be changed by the driver if it has a good
  *	reason to override the default
  * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
- *	on a VLAN interface)
+ *	on a VLAN interface). This flag also serves an extra purpose of
+ *	supporting 4ADDR AP mode on devices which do not support AP/VLAN iftype.
  * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
  * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
  *	control port protocol ethertype. The device also honours the
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/dst.h linux-libre-5.1.21-gnu/include/net/dst.h
--- linux-libre-5.1-gnu/include/net/dst.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/dst.h	2019-07-28 02:28:39.000000000 -0400
@@ -313,8 +313,9 @@ static inline bool dst_hold_safe(struct
  * @skb: buffer
  *
  * If dst is not yet refcounted and not destroyed, grab a ref on it.
+ * Returns true if dst is refcounted.
  */
-static inline void skb_dst_force(struct sk_buff *skb)
+static inline bool skb_dst_force(struct sk_buff *skb)
 {
 	if (skb_dst_is_noref(skb)) {
 		struct dst_entry *dst = skb_dst(skb);
@@ -325,6 +326,8 @@ static inline void skb_dst_force(struct
 
 		skb->_skb_refdst = (unsigned long)dst;
 	}
+
+	return skb->_skb_refdst != 0UL;
 }
 
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/flow_dissector.h linux-libre-5.1.21-gnu/include/net/flow_dissector.h
--- linux-libre-5.1-gnu/include/net/flow_dissector.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/flow_dissector.h	2019-07-28 02:28:39.000000000 -0400
@@ -46,6 +46,7 @@ struct flow_dissector_key_tags {
 
 struct flow_dissector_key_vlan {
 	u16	vlan_id:12,
+		vlan_dei:1,
 		vlan_priority:3;
 	__be16	vlan_tpid;
 };
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/flow_offload.h linux-libre-5.1.21-gnu/include/net/flow_offload.h
--- linux-libre-5.1-gnu/include/net/flow_offload.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/flow_offload.h	2019-07-28 02:28:39.000000000 -0400
@@ -71,6 +71,8 @@ void flow_rule_match_eth_addrs(const str
 			       struct flow_match_eth_addrs *out);
 void flow_rule_match_vlan(const struct flow_rule *rule,
 			  struct flow_match_vlan *out);
+void flow_rule_match_cvlan(const struct flow_rule *rule,
+			   struct flow_match_vlan *out);
 void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
 				struct flow_match_ipv4_addrs *out);
 void flow_rule_match_ipv6_addrs(const struct flow_rule *rule,
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/ip6_fib.h linux-libre-5.1.21-gnu/include/net/ip6_fib.h
--- linux-libre-5.1-gnu/include/net/ip6_fib.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/ip6_fib.h	2019-07-28 02:28:39.000000000 -0400
@@ -171,7 +171,8 @@ struct fib6_info {
 					dst_nocount:1,
 					dst_nopolicy:1,
 					dst_host:1,
-					unused:3;
+					fib6_destroying:1,
+					unused:2;
 
 	struct fib6_nh			fib6_nh;
 	struct rcu_head			rcu;
@@ -258,8 +259,7 @@ static inline u32 rt6_get_cookie(const s
 	rcu_read_lock();
 
 	from = rcu_dereference(rt->from);
-	if (from && (rt->rt6i_flags & RTF_PCPU ||
-	    unlikely(!list_empty(&rt->rt6i_uncached))))
+	if (from)
 		fib6_get_cookie_safe(from, &cookie);
 
 	rcu_read_unlock();
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/ip6_tunnel.h linux-libre-5.1.21-gnu/include/net/ip6_tunnel.h
--- linux-libre-5.1-gnu/include/net/ip6_tunnel.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/ip6_tunnel.h	2019-07-28 02:28:39.000000000 -0400
@@ -158,9 +158,12 @@ static inline void ip6tunnel_xmit(struct
 	memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
 	pkt_len = skb->len - skb_inner_network_offset(skb);
 	err = ip6_local_out(dev_net(skb_dst(skb)->dev), sk, skb);
-	if (unlikely(net_xmit_eval(err)))
-		pkt_len = -1;
-	iptunnel_xmit_stats(dev, pkt_len);
+
+	if (dev) {
+		if (unlikely(net_xmit_eval(err)))
+			pkt_len = -1;
+		iptunnel_xmit_stats(dev, pkt_len);
+	}
 }
 #endif
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/ip_vs.h linux-libre-5.1.21-gnu/include/net/ip_vs.h
--- linux-libre-5.1-gnu/include/net/ip_vs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/ip_vs.h	2019-07-28 02:28:39.000000000 -0400
@@ -803,11 +803,12 @@ struct ipvs_master_sync_state {
 	struct ip_vs_sync_buff	*sync_buff;
 	unsigned long		sync_queue_len;
 	unsigned int		sync_queue_delay;
-	struct task_struct	*master_thread;
 	struct delayed_work	master_wakeup_work;
 	struct netns_ipvs	*ipvs;
 };
 
+struct ip_vs_sync_thread_data;
+
 /* How much time to keep dests in trash */
 #define IP_VS_DEST_TRASH_PERIOD		(120 * HZ)
 
@@ -938,7 +939,8 @@ struct netns_ipvs {
 	spinlock_t		sync_lock;
 	struct ipvs_master_sync_state *ms;
 	spinlock_t		sync_buff_lock;
-	struct task_struct	**backup_threads;
+	struct ip_vs_sync_thread_data *master_tinfo;
+	struct ip_vs_sync_thread_data *backup_tinfo;
 	int			threads_mask;
 	volatile int		sync_state;
 	struct mutex		sync_mutex;
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/netfilter/nft_fib.h linux-libre-5.1.21-gnu/include/net/netfilter/nft_fib.h
--- linux-libre-5.1-gnu/include/net/netfilter/nft_fib.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/netfilter/nft_fib.h	2019-07-28 02:28:39.000000000 -0400
@@ -34,5 +34,5 @@ void nft_fib6_eval(const struct nft_expr
 		   const struct nft_pktinfo *pkt);
 
 void nft_fib_store_result(void *reg, const struct nft_fib *priv,
-			  const struct nft_pktinfo *pkt, int index);
+			  const struct net_device *dev);
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/netns/ipv4.h linux-libre-5.1.21-gnu/include/net/netns/ipv4.h
--- linux-libre-5.1-gnu/include/net/netns/ipv4.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/netns/ipv4.h	2019-07-28 02:28:39.000000000 -0400
@@ -9,6 +9,7 @@
 #include <linux/uidgid.h>
 #include <net/inet_frag.h>
 #include <linux/rcupdate.h>
+#include <linux/siphash.h>
 
 struct tcpm_hash_bucket;
 struct ctl_table_header;
@@ -116,6 +117,7 @@ struct netns_ipv4 {
 #endif
 	int sysctl_tcp_mtu_probing;
 	int sysctl_tcp_base_mss;
+	int sysctl_tcp_min_snd_mss;
 	int sysctl_tcp_probe_threshold;
 	u32 sysctl_tcp_probe_interval;
 
@@ -217,5 +219,6 @@ struct netns_ipv4 {
 	unsigned int	ipmr_seq;	/* protected by rtnl_mutex */
 
 	atomic_t	rt_genid;
+	siphash_key_t	ip_id_key;
 };
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/tcp.h linux-libre-5.1.21-gnu/include/net/tcp.h
--- linux-libre-5.1-gnu/include/net/tcp.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/tcp.h	2019-07-28 02:28:39.000000000 -0400
@@ -55,6 +55,8 @@ void tcp_time_wait(struct sock *sk, int
 
 #define MAX_TCP_HEADER	(128 + MAX_HEADER)
 #define MAX_TCP_OPTION_SPACE 40
+#define TCP_MIN_SND_MSS		48
+#define TCP_MIN_GSO_SIZE	(TCP_MIN_SND_MSS - MAX_TCP_OPTION_SPACE)
 
 /*
  * Never offer a window over 32767 without using window scaling. Some
@@ -1065,7 +1067,8 @@ void tcp_get_default_congestion_control(
 void tcp_get_available_congestion_control(char *buf, size_t len);
 void tcp_get_allowed_congestion_control(char *buf, size_t len);
 int tcp_set_allowed_congestion_control(char *allowed);
-int tcp_set_congestion_control(struct sock *sk, const char *name, bool load, bool reinit);
+int tcp_set_congestion_control(struct sock *sk, const char *name, bool load,
+			       bool reinit, bool cap_net_admin);
 u32 tcp_slow_start(struct tcp_sock *tp, u32 acked);
 void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w, u32 acked);
 
@@ -1677,6 +1680,11 @@ static inline struct sk_buff *tcp_rtx_qu
 	return skb_rb_first(&sk->tcp_rtx_queue);
 }
 
+static inline struct sk_buff *tcp_rtx_queue_tail(const struct sock *sk)
+{
+	return skb_rb_last(&sk->tcp_rtx_queue);
+}
+
 static inline struct sk_buff *tcp_write_queue_head(const struct sock *sk)
 {
 	return skb_peek(&sk->sk_write_queue);
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/tls.h linux-libre-5.1.21-gnu/include/net/tls.h
--- linux-libre-5.1-gnu/include/net/tls.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/tls.h	2019-07-28 02:28:39.000000000 -0400
@@ -199,6 +199,10 @@ struct tls_offload_context_tx {
 	(ALIGN(sizeof(struct tls_offload_context_tx), sizeof(void *)) +        \
 	 TLS_DRIVER_STATE_SIZE)
 
+enum tls_context_flags {
+	TLS_RX_SYNC_RUNNING = 0,
+};
+
 struct cipher_context {
 	char *iv;
 	char *rec_seq;
@@ -281,6 +285,7 @@ struct tls_offload_context_rx {
 	(ALIGN(sizeof(struct tls_offload_context_rx), sizeof(void *)) + \
 	 TLS_DRIVER_STATE_SIZE)
 
+void tls_ctx_free(struct tls_context *ctx);
 int wait_on_pending_writer(struct sock *sk, long *timeo);
 int tls_sk_query(struct sock *sk, int optname, char __user *optval,
 		int __user *optlen);
@@ -343,21 +348,6 @@ static inline bool tls_is_partially_sent
 	return !!ctx->partially_sent_record;
 }
 
-static inline int tls_complete_pending_work(struct sock *sk,
-					    struct tls_context *ctx,
-					    int flags, long *timeo)
-{
-	int rc = 0;
-
-	if (unlikely(sk->sk_write_pending))
-		rc = wait_on_pending_writer(sk, timeo);
-
-	if (!rc && tls_is_partially_sent_record(ctx))
-		rc = tls_push_partial_record(sk, ctx, flags);
-
-	return rc;
-}
-
 static inline bool tls_is_pending_open_record(struct tls_context *tls_ctx)
 {
 	return tls_ctx->pending_open_record_frags;
diff -druNp --no-dereference linux-libre-5.1-gnu/include/net/xdp_sock.h linux-libre-5.1.21-gnu/include/net/xdp_sock.h
--- linux-libre-5.1-gnu/include/net/xdp_sock.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/net/xdp_sock.h	2019-07-28 02:28:39.000000000 -0400
@@ -67,6 +67,8 @@ struct xdp_sock {
 	 * in the SKB destructor callback.
 	 */
 	spinlock_t tx_completion_lock;
+	/* Protects generic receive. */
+	spinlock_t rx_lock;
 	u64 rx_dropped;
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/rdma/ib_verbs.h linux-libre-5.1.21-gnu/include/rdma/ib_verbs.h
--- linux-libre-5.1-gnu/include/rdma/ib_verbs.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/rdma/ib_verbs.h	2019-07-28 02:28:39.000000000 -0400
@@ -293,8 +293,8 @@ struct ib_rss_caps {
 };
 
 enum ib_tm_cap_flags {
-	/*  Support tag matching on RC transport */
-	IB_TM_CAP_RC		    = 1 << 0,
+	/*  Support tag matching with rendezvous offload for RC transport */
+	IB_TM_CAP_RNDV_RC = 1 << 0,
 };
 
 struct ib_tm_caps {
diff -druNp --no-dereference linux-libre-5.1-gnu/include/sound/hda_codec.h linux-libre-5.1.21-gnu/include/sound/hda_codec.h
--- linux-libre-5.1-gnu/include/sound/hda_codec.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/sound/hda_codec.h	2019-07-28 02:28:39.000000000 -0400
@@ -262,6 +262,8 @@ struct hda_codec {
 	unsigned int auto_runtime_pm:1; /* enable automatic codec runtime pm */
 	unsigned int force_pin_prefix:1; /* Add location prefix */
 	unsigned int link_down_at_suspend:1; /* link down at runtime suspend */
+	unsigned int relaxed_resume:1;	/* don't resume forcibly for jack */
+
 #ifdef CONFIG_PM
 	unsigned long power_on_acct;
 	unsigned long power_off_acct;
diff -druNp --no-dereference linux-libre-5.1-gnu/include/trace/events/rxrpc.h linux-libre-5.1.21-gnu/include/trace/events/rxrpc.h
--- linux-libre-5.1-gnu/include/trace/events/rxrpc.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/trace/events/rxrpc.h	2019-07-28 02:28:39.000000000 -0400
@@ -1383,7 +1383,7 @@ TRACE_EVENT(rxrpc_rx_eproto,
 			     ),
 
 	    TP_fast_assign(
-		    __entry->call = call->debug_id;
+		    __entry->call = call ? call->debug_id : 0;
 		    __entry->serial = serial;
 		    __entry->why = why;
 			   ),
diff -druNp --no-dereference linux-libre-5.1-gnu/include/uapi/drm/i915_drm.h linux-libre-5.1.21-gnu/include/uapi/drm/i915_drm.h
--- linux-libre-5.1-gnu/include/uapi/drm/i915_drm.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/uapi/drm/i915_drm.h	2019-07-28 02:28:39.000000000 -0400
@@ -972,7 +972,7 @@ struct drm_i915_gem_execbuffer2 {
 	 * struct drm_i915_gem_exec_fence *fences.
 	 */
 	__u64 cliprects_ptr;
-#define I915_EXEC_RING_MASK              (7<<0)
+#define I915_EXEC_RING_MASK              (0x3f)
 #define I915_EXEC_DEFAULT                (0<<0)
 #define I915_EXEC_RENDER                 (1<<0)
 #define I915_EXEC_BSD                    (2<<0)
diff -druNp --no-dereference linux-libre-5.1-gnu/include/uapi/linux/bpf.h linux-libre-5.1.21-gnu/include/uapi/linux/bpf.h
--- linux-libre-5.1-gnu/include/uapi/linux/bpf.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/uapi/linux/bpf.h	2019-07-28 02:28:39.000000000 -0400
@@ -187,6 +187,8 @@ enum bpf_attach_type {
 	BPF_CGROUP_UDP6_SENDMSG,
 	BPF_LIRC_MODE2,
 	BPF_FLOW_DISSECTOR,
+	BPF_CGROUP_UDP4_RECVMSG = 19,
+	BPF_CGROUP_UDP6_RECVMSG,
 	__MAX_BPF_ATTACH_TYPE
 };
 
@@ -2869,6 +2871,7 @@ struct bpf_prog_info {
 	char name[BPF_OBJ_NAME_LEN];
 	__u32 ifindex;
 	__u32 gpl_compatible:1;
+	__u32 :31; /* alignment pad */
 	__u64 netns_dev;
 	__u64 netns_ino;
 	__u32 nr_jited_ksyms;
@@ -3104,8 +3107,8 @@ struct bpf_raw_tracepoint_args {
 /* DIRECT:  Skip the FIB rules and go to FIB table associated with device
  * OUTPUT:  Do lookup from egress perspective; default is ingress
  */
-#define BPF_FIB_LOOKUP_DIRECT  BIT(0)
-#define BPF_FIB_LOOKUP_OUTPUT  BIT(1)
+#define BPF_FIB_LOOKUP_DIRECT  (1U << 0)
+#define BPF_FIB_LOOKUP_OUTPUT  (1U << 1)
 
 enum {
 	BPF_FIB_LKUP_RET_SUCCESS,      /* lookup successful */
diff -druNp --no-dereference linux-libre-5.1-gnu/include/uapi/linux/fuse.h linux-libre-5.1.21-gnu/include/uapi/linux/fuse.h
--- linux-libre-5.1-gnu/include/uapi/linux/fuse.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/uapi/linux/fuse.h	2019-07-28 02:28:39.000000000 -0400
@@ -229,11 +229,13 @@ struct fuse_file_lock {
  * FOPEN_KEEP_CACHE: don't invalidate the data cache on open
  * FOPEN_NONSEEKABLE: the file is not seekable
  * FOPEN_CACHE_DIR: allow caching this directory
+ * FOPEN_STREAM: the file is stream-like (no file position at all)
  */
 #define FOPEN_DIRECT_IO		(1 << 0)
 #define FOPEN_KEEP_CACHE	(1 << 1)
 #define FOPEN_NONSEEKABLE	(1 << 2)
 #define FOPEN_CACHE_DIR		(1 << 3)
+#define FOPEN_STREAM		(1 << 4)
 
 /**
  * INIT request/reply flags
diff -druNp --no-dereference linux-libre-5.1-gnu/include/uapi/linux/nilfs2_ondisk.h linux-libre-5.1.21-gnu/include/uapi/linux/nilfs2_ondisk.h
--- linux-libre-5.1-gnu/include/uapi/linux/nilfs2_ondisk.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/uapi/linux/nilfs2_ondisk.h	2019-07-28 02:28:39.000000000 -0400
@@ -29,7 +29,7 @@
 
 #include <linux/types.h>
 #include <linux/magic.h>
-
+#include <asm/byteorder.h>
 
 #define NILFS_INODE_BMAP_SIZE	7
 
@@ -533,19 +533,19 @@ enum {
 static inline void							\
 nilfs_checkpoint_set_##name(struct nilfs_checkpoint *cp)		\
 {									\
-	cp->cp_flags = cpu_to_le32(le32_to_cpu(cp->cp_flags) |		\
-				   (1UL << NILFS_CHECKPOINT_##flag));	\
+	cp->cp_flags = __cpu_to_le32(__le32_to_cpu(cp->cp_flags) |	\
+				     (1UL << NILFS_CHECKPOINT_##flag));	\
 }									\
 static inline void							\
 nilfs_checkpoint_clear_##name(struct nilfs_checkpoint *cp)		\
 {									\
-	cp->cp_flags = cpu_to_le32(le32_to_cpu(cp->cp_flags) &		\
+	cp->cp_flags = __cpu_to_le32(__le32_to_cpu(cp->cp_flags) &	\
 				   ~(1UL << NILFS_CHECKPOINT_##flag));	\
 }									\
 static inline int							\
 nilfs_checkpoint_##name(const struct nilfs_checkpoint *cp)		\
 {									\
-	return !!(le32_to_cpu(cp->cp_flags) &				\
+	return !!(__le32_to_cpu(cp->cp_flags) &				\
 		  (1UL << NILFS_CHECKPOINT_##flag));			\
 }
 
@@ -595,20 +595,20 @@ enum {
 static inline void							\
 nilfs_segment_usage_set_##name(struct nilfs_segment_usage *su)		\
 {									\
-	su->su_flags = cpu_to_le32(le32_to_cpu(su->su_flags) |		\
+	su->su_flags = __cpu_to_le32(__le32_to_cpu(su->su_flags) |	\
 				   (1UL << NILFS_SEGMENT_USAGE_##flag));\
 }									\
 static inline void							\
 nilfs_segment_usage_clear_##name(struct nilfs_segment_usage *su)	\
 {									\
 	su->su_flags =							\
-		cpu_to_le32(le32_to_cpu(su->su_flags) &			\
+		__cpu_to_le32(__le32_to_cpu(su->su_flags) &		\
 			    ~(1UL << NILFS_SEGMENT_USAGE_##flag));      \
 }									\
 static inline int							\
 nilfs_segment_usage_##name(const struct nilfs_segment_usage *su)	\
 {									\
-	return !!(le32_to_cpu(su->su_flags) &				\
+	return !!(__le32_to_cpu(su->su_flags) &				\
 		  (1UL << NILFS_SEGMENT_USAGE_##flag));			\
 }
 
@@ -619,15 +619,15 @@ NILFS_SEGMENT_USAGE_FNS(ERROR, error)
 static inline void
 nilfs_segment_usage_set_clean(struct nilfs_segment_usage *su)
 {
-	su->su_lastmod = cpu_to_le64(0);
-	su->su_nblocks = cpu_to_le32(0);
-	su->su_flags = cpu_to_le32(0);
+	su->su_lastmod = __cpu_to_le64(0);
+	su->su_nblocks = __cpu_to_le32(0);
+	su->su_flags = __cpu_to_le32(0);
 }
 
 static inline int
 nilfs_segment_usage_clean(const struct nilfs_segment_usage *su)
 {
-	return !le32_to_cpu(su->su_flags);
+	return !__le32_to_cpu(su->su_flags);
 }
 
 /**
diff -druNp --no-dereference linux-libre-5.1-gnu/include/uapi/linux/snmp.h linux-libre-5.1.21-gnu/include/uapi/linux/snmp.h
--- linux-libre-5.1-gnu/include/uapi/linux/snmp.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/uapi/linux/snmp.h	2019-07-28 02:28:39.000000000 -0400
@@ -283,6 +283,7 @@ enum
 	LINUX_MIB_TCPACKCOMPRESSED,		/* TCPAckCompressed */
 	LINUX_MIB_TCPZEROWINDOWDROP,		/* TCPZeroWindowDrop */
 	LINUX_MIB_TCPRCVQDROP,			/* TCPRcvQDrop */
+	LINUX_MIB_TCPWQUEUETOOBIG,		/* TCPWqueueTooBig */
 	__LINUX_MIB_MAX
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/uapi/linux/tipc_config.h linux-libre-5.1.21-gnu/include/uapi/linux/tipc_config.h
--- linux-libre-5.1-gnu/include/uapi/linux/tipc_config.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/uapi/linux/tipc_config.h	2019-07-28 02:28:39.000000000 -0400
@@ -307,8 +307,10 @@ static inline int TLV_SET(void *tlv, __u
 	tlv_ptr = (struct tlv_desc *)tlv;
 	tlv_ptr->tlv_type = htons(type);
 	tlv_ptr->tlv_len  = htons(tlv_len);
-	if (len && data)
-		memcpy(TLV_DATA(tlv_ptr), data, tlv_len);
+	if (len && data) {
+		memcpy(TLV_DATA(tlv_ptr), data, len);
+		memset(TLV_DATA(tlv_ptr) + len, 0, TLV_SPACE(len) - tlv_len);
+	}
 	return TLV_SPACE(len);
 }
 
@@ -405,8 +407,10 @@ static inline int TCM_SET(void *msg, __u
 	tcm_hdr->tcm_len   = htonl(msg_len);
 	tcm_hdr->tcm_type  = htons(cmd);
 	tcm_hdr->tcm_flags = htons(flags);
-	if (data_len && data)
+	if (data_len && data) {
 		memcpy(TCM_DATA(msg), data, data_len);
+		memset(TCM_DATA(msg) + data_len, 0, TCM_SPACE(data_len) - msg_len);
+	}
 	return TCM_SPACE(data_len);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/include/uapi/linux/usb/audio.h linux-libre-5.1.21-gnu/include/uapi/linux/usb/audio.h
--- linux-libre-5.1-gnu/include/uapi/linux/usb/audio.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/uapi/linux/usb/audio.h	2019-07-28 02:28:39.000000000 -0400
@@ -450,6 +450,43 @@ static inline __u8 *uac_processing_unit_
 	}
 }
 
+/*
+ * Extension Unit (XU) has almost compatible layout with Processing Unit, but
+ * on UAC2, it has a different bmControls size (bControlSize); it's 1 byte for
+ * XU while 2 bytes for PU.  The last iExtension field is a one-byte index as
+ * well as iProcessing field of PU.
+ */
+static inline __u8 uac_extension_unit_bControlSize(struct uac_processing_unit_descriptor *desc,
+						   int protocol)
+{
+	switch (protocol) {
+	case UAC_VERSION_1:
+		return desc->baSourceID[desc->bNrInPins + 4];
+	case UAC_VERSION_2:
+		return 1; /* in UAC2, this value is constant */
+	case UAC_VERSION_3:
+		return 4; /* in UAC3, this value is constant */
+	default:
+		return 1;
+	}
+}
+
+static inline __u8 uac_extension_unit_iExtension(struct uac_processing_unit_descriptor *desc,
+						 int protocol)
+{
+	__u8 control_size = uac_extension_unit_bControlSize(desc, protocol);
+
+	switch (protocol) {
+	case UAC_VERSION_1:
+	case UAC_VERSION_2:
+	default:
+		return *(uac_processing_unit_bmControls(desc, protocol)
+			 + control_size);
+	case UAC_VERSION_3:
+		return 0; /* UAC3 does not have this field */
+	}
+}
+
 /* 4.5.2 Class-Specific AS Interface Descriptor */
 struct uac1_as_header_descriptor {
 	__u8  bLength;			/* in bytes: 7 */
diff -druNp --no-dereference linux-libre-5.1-gnu/include/video/udlfb.h linux-libre-5.1.21-gnu/include/video/udlfb.h
--- linux-libre-5.1-gnu/include/video/udlfb.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/video/udlfb.h	2019-07-28 02:28:39.000000000 -0400
@@ -48,6 +48,13 @@ struct dlfb_data {
 	int base8;
 	u32 pseudo_palette[256];
 	int blank_mode; /*one of FB_BLANK_ */
+	struct mutex render_mutex;
+	int damage_x;
+	int damage_y;
+	int damage_x2;
+	int damage_y2;
+	spinlock_t damage_lock;
+	struct work_struct damage_work;
 	struct fb_ops ops;
 	/* blit-only rendering path metrics, exposed through sysfs */
 	atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
diff -druNp --no-dereference linux-libre-5.1-gnu/include/xen/events.h linux-libre-5.1.21-gnu/include/xen/events.h
--- linux-libre-5.1-gnu/include/xen/events.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/xen/events.h	2019-07-28 02:28:39.000000000 -0400
@@ -3,6 +3,7 @@
 #define _XEN_EVENTS_H
 
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 #ifdef CONFIG_PCI_MSI
 #include <linux/msi.h>
 #endif
@@ -59,7 +60,7 @@ void evtchn_put(unsigned int evtchn);
 
 void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
 void rebind_evtchn_irq(int evtchn, int irq);
-int xen_rebind_evtchn_to_cpu(int evtchn, unsigned tcpu);
+int xen_set_affinity_evtchn(struct irq_desc *desc, unsigned int tcpu);
 
 static inline void notify_remote_via_evtchn(int port)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/include/xen/xen.h linux-libre-5.1.21-gnu/include/xen/xen.h
--- linux-libre-5.1-gnu/include/xen/xen.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/include/xen/xen.h	2019-07-28 02:28:39.000000000 -0400
@@ -43,8 +43,10 @@ extern struct hvm_start_info pvh_start_i
 #endif	/* CONFIG_XEN_DOM0 */
 
 struct bio_vec;
+struct page;
+
 bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
-		const struct bio_vec *vec2);
+		const struct page *page);
 
 #if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_XEN_BALLOON)
 extern u64 xen_saved_max_mem_size;
diff -druNp --no-dereference linux-libre-5.1-gnu/init/initramfs.c linux-libre-5.1.21-gnu/init/initramfs.c
--- linux-libre-5.1-gnu/init/initramfs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/init/initramfs.c	2019-07-28 02:28:39.000000000 -0400
@@ -612,13 +612,12 @@ static int __init populate_rootfs(void)
 		printk(KERN_INFO "Trying to unpack rootfs image as initramfs...\n");
 		err = unpack_to_rootfs((char *)initrd_start,
 			initrd_end - initrd_start);
-		if (!err) {
-			free_initrd();
+		if (!err)
 			goto done;
-		} else {
-			clean_rootfs();
-			unpack_to_rootfs(__initramfs_start, __initramfs_size);
-		}
+
+		clean_rootfs();
+		unpack_to_rootfs(__initramfs_start, __initramfs_size);
+
 		printk(KERN_INFO "rootfs image is not initramfs (%s)"
 				"; looks like an initrd\n", err);
 		fd = ksys_open("/initrd.image",
@@ -632,7 +631,6 @@ static int __init populate_rootfs(void)
 				       written, initrd_end - initrd_start);
 
 			ksys_close(fd);
-			free_initrd();
 		}
 	done:
 		/* empty statement */;
@@ -642,9 +640,9 @@ static int __init populate_rootfs(void)
 			initrd_end - initrd_start);
 		if (err)
 			printk(KERN_EMERG "Initramfs unpacking failed: %s\n", err);
-		free_initrd();
 #endif
 	}
+	free_initrd();
 	flush_delayed_fput();
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/ipc/mqueue.c linux-libre-5.1.21-gnu/ipc/mqueue.c
--- linux-libre-5.1-gnu/ipc/mqueue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/ipc/mqueue.c	2019-07-28 02:28:39.000000000 -0400
@@ -436,7 +436,8 @@ static void mqueue_evict_inode(struct in
 	struct user_struct *user;
 	unsigned long mq_bytes, mq_treesize;
 	struct ipc_namespace *ipc_ns;
-	struct msg_msg *msg;
+	struct msg_msg *msg, *nmsg;
+	LIST_HEAD(tmp_msg);
 
 	clear_inode(inode);
 
@@ -447,10 +448,15 @@ static void mqueue_evict_inode(struct in
 	info = MQUEUE_I(inode);
 	spin_lock(&info->lock);
 	while ((msg = msg_get(info)) != NULL)
-		free_msg(msg);
+		list_add_tail(&msg->m_list, &tmp_msg);
 	kfree(info->node_cache);
 	spin_unlock(&info->lock);
 
+	list_for_each_entry_safe(msg, nmsg, &tmp_msg, m_list) {
+		list_del(&msg->m_list);
+		free_msg(msg);
+	}
+
 	/* Total amount of bytes accounted for the mqueue */
 	mq_treesize = info->attr.mq_maxmsg * sizeof(struct msg_msg) +
 		min_t(unsigned int, info->attr.mq_maxmsg, MQ_PRIO_MAX) *
diff -druNp --no-dereference linux-libre-5.1-gnu/ipc/msgutil.c linux-libre-5.1.21-gnu/ipc/msgutil.c
--- linux-libre-5.1-gnu/ipc/msgutil.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/ipc/msgutil.c	2019-07-28 02:28:39.000000000 -0400
@@ -18,6 +18,7 @@
 #include <linux/utsname.h>
 #include <linux/proc_ns.h>
 #include <linux/uaccess.h>
+#include <linux/sched.h>
 
 #include "util.h"
 
@@ -64,6 +65,9 @@ static struct msg_msg *alloc_msg(size_t
 	pseg = &msg->next;
 	while (len > 0) {
 		struct msg_msgseg *seg;
+
+		cond_resched();
+
 		alen = min(len, DATALEN_SEG);
 		seg = kmalloc(sizeof(*seg) + alen, GFP_KERNEL_ACCOUNT);
 		if (seg == NULL)
@@ -176,6 +180,8 @@ void free_msg(struct msg_msg *msg)
 	kfree(msg);
 	while (seg != NULL) {
 		struct msg_msgseg *tmp = seg->next;
+
+		cond_resched();
 		kfree(seg);
 		seg = tmp;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/acct.c linux-libre-5.1.21-gnu/kernel/acct.c
--- linux-libre-5.1-gnu/kernel/acct.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/acct.c	2019-07-28 02:28:39.000000000 -0400
@@ -227,7 +227,7 @@ static int acct_on(struct filename *path
 		filp_close(file, NULL);
 		return PTR_ERR(internal);
 	}
-	err = mnt_want_write(internal);
+	err = __mnt_want_write(internal);
 	if (err) {
 		mntput(internal);
 		kfree(acct);
@@ -252,7 +252,7 @@ static int acct_on(struct filename *path
 	old = xchg(&ns->bacct, &acct->pin);
 	mutex_unlock(&acct->lock);
 	pin_kill(old);
-	mnt_drop_write(mnt);
+	__mnt_drop_write(mnt);
 	mntput(mnt);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/auditfilter.c linux-libre-5.1.21-gnu/kernel/auditfilter.c
--- linux-libre-5.1-gnu/kernel/auditfilter.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/auditfilter.c	2019-07-28 02:28:39.000000000 -0400
@@ -1114,22 +1114,24 @@ int audit_rule_change(int type, int seq,
 	int err = 0;
 	struct audit_entry *entry;
 
-	entry = audit_data_to_entry(data, datasz);
-	if (IS_ERR(entry))
-		return PTR_ERR(entry);
-
 	switch (type) {
 	case AUDIT_ADD_RULE:
+		entry = audit_data_to_entry(data, datasz);
+		if (IS_ERR(entry))
+			return PTR_ERR(entry);
 		err = audit_add_rule(entry);
 		audit_log_rule_change("add_rule", &entry->rule, !err);
 		break;
 	case AUDIT_DEL_RULE:
+		entry = audit_data_to_entry(data, datasz);
+		if (IS_ERR(entry))
+			return PTR_ERR(entry);
 		err = audit_del_rule(entry);
 		audit_log_rule_change("remove_rule", &entry->rule, !err);
 		break;
 	default:
-		err = -EINVAL;
 		WARN_ON(1);
+		return -EINVAL;
 	}
 
 	if (err || type == AUDIT_DEL_RULE) {
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/auditsc.c linux-libre-5.1.21-gnu/kernel/auditsc.c
--- linux-libre-5.1-gnu/kernel/auditsc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/auditsc.c	2019-07-28 02:28:39.000000000 -0400
@@ -840,6 +840,13 @@ static inline void audit_proctitle_free(
 	context->proctitle.len = 0;
 }
 
+static inline void audit_free_module(struct audit_context *context)
+{
+	if (context->type == AUDIT_KERN_MODULE) {
+		kfree(context->module.name);
+		context->module.name = NULL;
+	}
+}
 static inline void audit_free_names(struct audit_context *context)
 {
 	struct audit_names *n, *next;
@@ -923,6 +930,7 @@ int audit_alloc(struct task_struct *tsk)
 
 static inline void audit_free_context(struct audit_context *context)
 {
+	audit_free_module(context);
 	audit_free_names(context);
 	unroll_tree_refs(context, NULL, 0);
 	free_tree_refs(context);
@@ -1266,7 +1274,6 @@ static void show_special(struct audit_co
 		audit_log_format(ab, "name=");
 		if (context->module.name) {
 			audit_log_untrustedstring(ab, context->module.name);
-			kfree(context->module.name);
 		} else
 			audit_log_format(ab, "(null)");
 
@@ -1697,6 +1704,7 @@ void __audit_syscall_exit(int success, l
 	context->in_syscall = 0;
 	context->prio = context->state == AUDIT_RECORD_CONTEXT ? ~0ULL : 0;
 
+	audit_free_module(context);
 	audit_free_names(context);
 	unroll_tree_refs(context, NULL, 0);
 	audit_free_aux(context);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/bpf/core.c linux-libre-5.1.21-gnu/kernel/bpf/core.c
--- linux-libre-5.1-gnu/kernel/bpf/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/bpf/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -337,7 +337,7 @@ int bpf_prog_calc_tag(struct bpf_prog *f
 }
 
 static int bpf_adj_delta_to_imm(struct bpf_insn *insn, u32 pos, s32 end_old,
-				s32 end_new, u32 curr, const bool probe_pass)
+				s32 end_new, s32 curr, const bool probe_pass)
 {
 	const s64 imm_min = S32_MIN, imm_max = S32_MAX;
 	s32 delta = end_new - end_old;
@@ -355,7 +355,7 @@ static int bpf_adj_delta_to_imm(struct b
 }
 
 static int bpf_adj_delta_to_off(struct bpf_insn *insn, u32 pos, s32 end_old,
-				s32 end_new, u32 curr, const bool probe_pass)
+				s32 end_new, s32 curr, const bool probe_pass)
 {
 	const s32 off_min = S16_MIN, off_max = S16_MAX;
 	s32 delta = end_new - end_old;
@@ -1367,10 +1367,10 @@ select_insn:
 		insn++;
 		CONT;
 	ALU_ARSH_X:
-		DST = (u64) (u32) ((*(s32 *) &DST) >> SRC);
+		DST = (u64) (u32) (((s32) DST) >> SRC);
 		CONT;
 	ALU_ARSH_K:
-		DST = (u64) (u32) ((*(s32 *) &DST) >> IMM);
+		DST = (u64) (u32) (((s32) DST) >> IMM);
 		CONT;
 	ALU64_ARSH_X:
 		(*(s64 *) &DST) >>= SRC;
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/bpf/devmap.c linux-libre-5.1.21-gnu/kernel/bpf/devmap.c
--- linux-libre-5.1-gnu/kernel/bpf/devmap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/bpf/devmap.c	2019-07-28 02:28:39.000000000 -0400
@@ -164,6 +164,9 @@ static void dev_map_free(struct bpf_map
 	bpf_clear_redirect_map(map);
 	synchronize_rcu();
 
+	/* Make sure prior __dev_map_entry_free() have completed. */
+	rcu_barrier();
+
 	/* To ensure all pending flush operations have completed wait for flush
 	 * bitmap to indicate all flush_needed bits to be zero on _all_ cpus.
 	 * Because the above synchronize_rcu() ensures the map is disconnected
@@ -183,6 +186,7 @@ static void dev_map_free(struct bpf_map
 		if (!dev)
 			continue;
 
+		free_percpu(dev->bulkq);
 		dev_put(dev->dev);
 		kfree(dev);
 	}
@@ -278,6 +282,7 @@ void __dev_map_flush(struct bpf_map *map
 	unsigned long *bitmap = this_cpu_ptr(dtab->flush_needed);
 	u32 bit;
 
+	rcu_read_lock();
 	for_each_set_bit(bit, bitmap, map->max_entries) {
 		struct bpf_dtab_netdev *dev = READ_ONCE(dtab->netdev_map[bit]);
 		struct xdp_bulk_queue *bq;
@@ -288,11 +293,12 @@ void __dev_map_flush(struct bpf_map *map
 		if (unlikely(!dev))
 			continue;
 
-		__clear_bit(bit, bitmap);
-
 		bq = this_cpu_ptr(dev->bulkq);
 		bq_xmit_all(dev, bq, XDP_XMIT_FLUSH, true);
+
+		__clear_bit(bit, bitmap);
 	}
+	rcu_read_unlock();
 }
 
 /* rcu_read_lock (from syscall and BPF contexts) ensures that if a delete and/or
@@ -385,6 +391,7 @@ static void dev_map_flush_old(struct bpf
 
 		int cpu;
 
+		rcu_read_lock();
 		for_each_online_cpu(cpu) {
 			bitmap = per_cpu_ptr(dev->dtab->flush_needed, cpu);
 			__clear_bit(dev->bit, bitmap);
@@ -392,6 +399,7 @@ static void dev_map_flush_old(struct bpf
 			bq = per_cpu_ptr(dev->bulkq, cpu);
 			bq_xmit_all(dev, bq, XDP_XMIT_FLUSH, false);
 		}
+		rcu_read_unlock();
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/bpf/hashtab.c linux-libre-5.1.21-gnu/kernel/bpf/hashtab.c
--- linux-libre-5.1-gnu/kernel/bpf/hashtab.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/bpf/hashtab.c	2019-07-28 02:28:39.000000000 -0400
@@ -527,18 +527,30 @@ static u32 htab_map_gen_lookup(struct bp
 	return insn - insn_buf;
 }
 
-static void *htab_lru_map_lookup_elem(struct bpf_map *map, void *key)
+static __always_inline void *__htab_lru_map_lookup_elem(struct bpf_map *map,
+							void *key, const bool mark)
 {
 	struct htab_elem *l = __htab_map_lookup_elem(map, key);
 
 	if (l) {
-		bpf_lru_node_set_ref(&l->lru_node);
+		if (mark)
+			bpf_lru_node_set_ref(&l->lru_node);
 		return l->key + round_up(map->key_size, 8);
 	}
 
 	return NULL;
 }
 
+static void *htab_lru_map_lookup_elem(struct bpf_map *map, void *key)
+{
+	return __htab_lru_map_lookup_elem(map, key, true);
+}
+
+static void *htab_lru_map_lookup_elem_sys(struct bpf_map *map, void *key)
+{
+	return __htab_lru_map_lookup_elem(map, key, false);
+}
+
 static u32 htab_lru_map_gen_lookup(struct bpf_map *map,
 				   struct bpf_insn *insn_buf)
 {
@@ -1250,6 +1262,7 @@ const struct bpf_map_ops htab_lru_map_op
 	.map_free = htab_map_free,
 	.map_get_next_key = htab_map_get_next_key,
 	.map_lookup_elem = htab_lru_map_lookup_elem,
+	.map_lookup_elem_sys_only = htab_lru_map_lookup_elem_sys,
 	.map_update_elem = htab_lru_map_update_elem,
 	.map_delete_elem = htab_lru_map_delete_elem,
 	.map_gen_lookup = htab_lru_map_gen_lookup,
@@ -1281,7 +1294,6 @@ static void *htab_lru_percpu_map_lookup_
 
 int bpf_percpu_hash_copy(struct bpf_map *map, void *key, void *value)
 {
-	struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
 	struct htab_elem *l;
 	void __percpu *pptr;
 	int ret = -ENOENT;
@@ -1297,8 +1309,9 @@ int bpf_percpu_hash_copy(struct bpf_map
 	l = __htab_map_lookup_elem(map, key);
 	if (!l)
 		goto out;
-	if (htab_is_lru(htab))
-		bpf_lru_node_set_ref(&l->lru_node);
+	/* We do not mark LRU map element here in order to not mess up
+	 * eviction heuristics when user space does a map walk.
+	 */
 	pptr = htab_elem_get_ptr(l, map->key_size);
 	for_each_possible_cpu(cpu) {
 		bpf_long_memcpy(value + off,
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/bpf/inode.c linux-libre-5.1.21-gnu/kernel/bpf/inode.c
--- linux-libre-5.1-gnu/kernel/bpf/inode.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/bpf/inode.c	2019-07-28 02:28:39.000000000 -0400
@@ -518,7 +518,7 @@ out:
 static struct bpf_prog *__get_prog_inode(struct inode *inode, enum bpf_prog_type type)
 {
 	struct bpf_prog *prog;
-	int ret = inode_permission(inode, MAY_READ | MAY_WRITE);
+	int ret = inode_permission(inode, MAY_READ);
 	if (ret)
 		return ERR_PTR(ret);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/bpf/lpm_trie.c linux-libre-5.1.21-gnu/kernel/bpf/lpm_trie.c
--- linux-libre-5.1-gnu/kernel/bpf/lpm_trie.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/bpf/lpm_trie.c	2019-07-28 02:28:39.000000000 -0400
@@ -715,9 +715,14 @@ find_leftmost:
 	 * have exact two children, so this function will never return NULL.
 	 */
 	for (node = search_root; node;) {
-		if (!(node->flags & LPM_TREE_NODE_FLAG_IM))
+		if (node->flags & LPM_TREE_NODE_FLAG_IM) {
+			node = rcu_dereference(node->child[0]);
+		} else {
 			next_node = node;
-		node = rcu_dereference(node->child[0]);
+			node = rcu_dereference(node->child[0]);
+			if (!node)
+				node = rcu_dereference(next_node->child[1]);
+		}
 	}
 do_copy:
 	next_key->prefixlen = next_node->prefixlen;
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/bpf/Makefile linux-libre-5.1.21-gnu/kernel/bpf/Makefile
--- linux-libre-5.1-gnu/kernel/bpf/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/bpf/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-y := core.o
+CFLAGS_core.o += $(call cc-disable-warning, override-init)
 
 obj-$(CONFIG_BPF_SYSCALL) += syscall.o verifier.o inode.o helpers.o tnum.o
 obj-$(CONFIG_BPF_SYSCALL) += hashtab.o arraymap.o percpu_freelist.o bpf_lru_list.o lpm_trie.o map_in_map.o
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/bpf/syscall.c linux-libre-5.1.21-gnu/kernel/bpf/syscall.c
--- linux-libre-5.1-gnu/kernel/bpf/syscall.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/bpf/syscall.c	2019-07-28 02:28:39.000000000 -0400
@@ -773,7 +773,10 @@ static int map_lookup_elem(union bpf_att
 		err = map->ops->map_peek_elem(map, value);
 	} else {
 		rcu_read_lock();
-		ptr = map->ops->map_lookup_elem(map, key);
+		if (map->ops->map_lookup_elem_sys_only)
+			ptr = map->ops->map_lookup_elem_sys_only(map, key);
+		else
+			ptr = map->ops->map_lookup_elem(map, key);
 		if (IS_ERR(ptr)) {
 			err = PTR_ERR(ptr);
 		} else if (!ptr) {
@@ -1517,6 +1520,8 @@ bpf_prog_load_check_attach_type(enum bpf
 		case BPF_CGROUP_INET6_CONNECT:
 		case BPF_CGROUP_UDP4_SENDMSG:
 		case BPF_CGROUP_UDP6_SENDMSG:
+		case BPF_CGROUP_UDP4_RECVMSG:
+		case BPF_CGROUP_UDP6_RECVMSG:
 			return 0;
 		default:
 			return -EINVAL;
@@ -1806,6 +1811,8 @@ static int bpf_prog_attach(const union b
 	case BPF_CGROUP_INET6_CONNECT:
 	case BPF_CGROUP_UDP4_SENDMSG:
 	case BPF_CGROUP_UDP6_SENDMSG:
+	case BPF_CGROUP_UDP4_RECVMSG:
+	case BPF_CGROUP_UDP6_RECVMSG:
 		ptype = BPF_PROG_TYPE_CGROUP_SOCK_ADDR;
 		break;
 	case BPF_CGROUP_SOCK_OPS:
@@ -1888,6 +1895,8 @@ static int bpf_prog_detach(const union b
 	case BPF_CGROUP_INET6_CONNECT:
 	case BPF_CGROUP_UDP4_SENDMSG:
 	case BPF_CGROUP_UDP6_SENDMSG:
+	case BPF_CGROUP_UDP4_RECVMSG:
+	case BPF_CGROUP_UDP6_RECVMSG:
 		ptype = BPF_PROG_TYPE_CGROUP_SOCK_ADDR;
 		break;
 	case BPF_CGROUP_SOCK_OPS:
@@ -1936,6 +1945,8 @@ static int bpf_prog_query(const union bp
 	case BPF_CGROUP_INET6_CONNECT:
 	case BPF_CGROUP_UDP4_SENDMSG:
 	case BPF_CGROUP_UDP6_SENDMSG:
+	case BPF_CGROUP_UDP4_RECVMSG:
+	case BPF_CGROUP_UDP6_RECVMSG:
 	case BPF_CGROUP_SOCK_OPS:
 	case BPF_CGROUP_DEVICE:
 		break;
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/bpf/verifier.c linux-libre-5.1.21-gnu/kernel/bpf/verifier.c
--- linux-libre-5.1-gnu/kernel/bpf/verifier.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/bpf/verifier.c	2019-07-28 02:28:39.000000000 -0400
@@ -5145,9 +5145,12 @@ static int check_return_code(struct bpf_
 	struct tnum range = tnum_range(0, 1);
 
 	switch (env->prog->type) {
+	case BPF_PROG_TYPE_CGROUP_SOCK_ADDR:
+		if (env->prog->expected_attach_type == BPF_CGROUP_UDP4_RECVMSG ||
+		    env->prog->expected_attach_type == BPF_CGROUP_UDP6_RECVMSG)
+			range = tnum_range(1, 1);
 	case BPF_PROG_TYPE_CGROUP_SKB:
 	case BPF_PROG_TYPE_CGROUP_SOCK:
-	case BPF_PROG_TYPE_CGROUP_SOCK_ADDR:
 	case BPF_PROG_TYPE_SOCK_OPS:
 	case BPF_PROG_TYPE_CGROUP_DEVICE:
 		break;
@@ -5163,16 +5166,17 @@ static int check_return_code(struct bpf_
 	}
 
 	if (!tnum_in(range, reg->var_off)) {
+		char tn_buf[48];
+
 		verbose(env, "At program exit the register R0 ");
 		if (!tnum_is_unknown(reg->var_off)) {
-			char tn_buf[48];
-
 			tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
 			verbose(env, "has value %s", tn_buf);
 		} else {
 			verbose(env, "has unknown scalar value");
 		}
-		verbose(env, " should have been 0 or 1\n");
+		tnum_strn(tn_buf, sizeof(tn_buf), range);
+		verbose(env, " should have been in %s\n", tn_buf);
 		return -EINVAL;
 	}
 	return 0;
@@ -6193,17 +6197,18 @@ static int is_state_visited(struct bpf_v
 	 * the state of the call instruction (with WRITTEN set), and r0 comes
 	 * from callee with its full parentage chain, anyway.
 	 */
-	for (j = 0; j <= cur->curframe; j++)
-		for (i = j < cur->curframe ? BPF_REG_6 : 0; i < BPF_REG_FP; i++)
-			cur->frame[j]->regs[i].parent = &new->frame[j]->regs[i];
 	/* clear write marks in current state: the writes we did are not writes
 	 * our child did, so they don't screen off its reads from us.
 	 * (There are no read marks in current state, because reads always mark
 	 * their parent and current state never has children yet.  Only
 	 * explored_states can get read marks.)
 	 */
-	for (i = 0; i < BPF_REG_FP; i++)
-		cur->frame[cur->curframe]->regs[i].live = REG_LIVE_NONE;
+	for (j = 0; j <= cur->curframe; j++) {
+		for (i = j < cur->curframe ? BPF_REG_6 : 0; i < BPF_REG_FP; i++)
+			cur->frame[j]->regs[i].parent = &new->frame[j]->regs[i];
+		for (i = 0; i < BPF_REG_FP; i++)
+			cur->frame[j]->regs[i].live = REG_LIVE_NONE;
+	}
 
 	/* all stack frames are accessible from callee, clear them all */
 	for (j = 0; j <= cur->curframe; j++) {
@@ -7296,7 +7301,7 @@ static int convert_ctx_accesses(struct b
 									insn->dst_reg,
 									shift);
 				insn_buf[cnt++] = BPF_ALU64_IMM(BPF_AND, insn->dst_reg,
-								(1 << size * 8) - 1);
+								(1ULL << size * 8) - 1);
 			}
 		}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/cgroup/cgroup.c linux-libre-5.1.21-gnu/kernel/cgroup/cgroup.c
--- linux-libre-5.1-gnu/kernel/cgroup/cgroup.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/cgroup/cgroup.c	2019-07-28 02:28:39.000000000 -0400
@@ -1775,11 +1775,13 @@ int cgroup_show_path(struct seq_file *sf
 
 enum cgroup2_param {
 	Opt_nsdelegate,
+	Opt_memory_localevents,
 	nr__cgroup2_params
 };
 
 static const struct fs_parameter_spec cgroup2_param_specs[] = {
-	fsparam_flag  ("nsdelegate",		Opt_nsdelegate),
+	fsparam_flag("nsdelegate",		Opt_nsdelegate),
+	fsparam_flag("memory_localevents",	Opt_memory_localevents),
 	{}
 };
 
@@ -1802,6 +1804,9 @@ static int cgroup2_parse_param(struct fs
 	case Opt_nsdelegate:
 		ctx->flags |= CGRP_ROOT_NS_DELEGATE;
 		return 0;
+	case Opt_memory_localevents:
+		ctx->flags |= CGRP_ROOT_MEMORY_LOCAL_EVENTS;
+		return 0;
 	}
 	return -EINVAL;
 }
@@ -1813,6 +1818,11 @@ static void apply_cgroup_root_flags(unsi
 			cgrp_dfl_root.flags |= CGRP_ROOT_NS_DELEGATE;
 		else
 			cgrp_dfl_root.flags &= ~CGRP_ROOT_NS_DELEGATE;
+
+		if (root_flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+			cgrp_dfl_root.flags |= CGRP_ROOT_MEMORY_LOCAL_EVENTS;
+		else
+			cgrp_dfl_root.flags &= ~CGRP_ROOT_MEMORY_LOCAL_EVENTS;
 	}
 }
 
@@ -1820,6 +1830,8 @@ static int cgroup_show_options(struct se
 {
 	if (cgrp_dfl_root.flags & CGRP_ROOT_NS_DELEGATE)
 		seq_puts(seq, ",nsdelegate");
+	if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
+		seq_puts(seq, ",memory_localevents");
 	return 0;
 }
 
@@ -4781,9 +4793,11 @@ static void css_release_work_fn(struct w
 		if (cgroup_on_dfl(cgrp))
 			cgroup_rstat_flush(cgrp);
 
+		spin_lock_irq(&css_set_lock);
 		for (tcgrp = cgroup_parent(cgrp); tcgrp;
 		     tcgrp = cgroup_parent(tcgrp))
 			tcgrp->nr_dying_descendants--;
+		spin_unlock_irq(&css_set_lock);
 
 		cgroup_idr_remove(&cgrp->root->cgroup_idr, cgrp->id);
 		cgrp->id = -1;
@@ -5001,12 +5015,14 @@ static struct cgroup *cgroup_create(stru
 	if (ret)
 		goto out_psi_free;
 
+	spin_lock_irq(&css_set_lock);
 	for (tcgrp = cgrp; tcgrp; tcgrp = cgroup_parent(tcgrp)) {
 		cgrp->ancestor_ids[tcgrp->level] = tcgrp->id;
 
 		if (tcgrp != cgrp)
 			tcgrp->nr_descendants++;
 	}
+	spin_unlock_irq(&css_set_lock);
 
 	if (notify_on_release(parent))
 		set_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags);
@@ -5291,10 +5307,12 @@ static int cgroup_destroy_locked(struct
 	if (parent && cgroup_is_threaded(cgrp))
 		parent->nr_threaded_children--;
 
+	spin_lock_irq(&css_set_lock);
 	for (tcgrp = cgroup_parent(cgrp); tcgrp; tcgrp = cgroup_parent(tcgrp)) {
 		tcgrp->nr_descendants--;
 		tcgrp->nr_dying_descendants++;
 	}
+	spin_unlock_irq(&css_set_lock);
 
 	cgroup1_check_for_release(parent);
 
@@ -6116,7 +6134,7 @@ static struct kobj_attribute cgroup_dele
 static ssize_t features_show(struct kobject *kobj, struct kobj_attribute *attr,
 			     char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "nsdelegate\n");
+	return snprintf(buf, PAGE_SIZE, "nsdelegate\nmemory_localevents\n");
 }
 static struct kobj_attribute cgroup_features_attr = __ATTR_RO(features);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/cgroup/cpuset.c linux-libre-5.1.21-gnu/kernel/cgroup/cpuset.c
--- linux-libre-5.1-gnu/kernel/cgroup/cpuset.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/cgroup/cpuset.c	2019-07-28 02:28:39.000000000 -0400
@@ -3255,10 +3255,23 @@ void cpuset_cpus_allowed(struct task_str
 	spin_unlock_irqrestore(&callback_lock, flags);
 }
 
+/**
+ * cpuset_cpus_allowed_fallback - final fallback before complete catastrophe.
+ * @tsk: pointer to task_struct with which the scheduler is struggling
+ *
+ * Description: In the case that the scheduler cannot find an allowed cpu in
+ * tsk->cpus_allowed, we fall back to task_cs(tsk)->cpus_allowed. In legacy
+ * mode however, this value is the same as task_cs(tsk)->effective_cpus,
+ * which will not contain a sane cpumask during cases such as cpu hotplugging.
+ * This is the absolute last resort for the scheduler and it is only used if
+ * _every_ other avenue has been traveled.
+ **/
+
 void cpuset_cpus_allowed_fallback(struct task_struct *tsk)
 {
 	rcu_read_lock();
-	do_set_cpus_allowed(tsk, task_cs(tsk)->effective_cpus);
+	do_set_cpus_allowed(tsk, is_in_v2_mode() ?
+		task_cs(tsk)->cpus_allowed : cpu_possible_mask);
 	rcu_read_unlock();
 
 	/*
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/cpu.c linux-libre-5.1.21-gnu/kernel/cpu.c
--- linux-libre-5.1-gnu/kernel/cpu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/cpu.c	2019-07-28 02:28:39.000000000 -0400
@@ -1954,6 +1954,9 @@ static ssize_t write_cpuhp_fail(struct d
 	if (ret)
 		return ret;
 
+	if (fail < CPUHP_OFFLINE || fail > CPUHP_ONLINE)
+		return -EINVAL;
+
 	/*
 	 * Cannot fail STARTING/DYING callbacks.
 	 */
@@ -2064,7 +2067,7 @@ static void cpuhp_online_cpu_device(unsi
 	kobject_uevent(&dev->kobj, KOBJ_ONLINE);
 }
 
-static int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval)
+int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval)
 {
 	int cpu, ret = 0;
 
@@ -2096,7 +2099,7 @@ static int cpuhp_smt_disable(enum cpuhp_
 	return ret;
 }
 
-static int cpuhp_smt_enable(void)
+int cpuhp_smt_enable(void)
 {
 	int cpu, ret = 0;
 
@@ -2304,3 +2307,21 @@ void __init boot_cpu_hotplug_init(void)
 #endif
 	this_cpu_write(cpuhp_state.state, CPUHP_ONLINE);
 }
+
+enum cpu_mitigations cpu_mitigations __ro_after_init = CPU_MITIGATIONS_AUTO;
+
+static int __init mitigations_parse_cmdline(char *arg)
+{
+	if (!strcmp(arg, "off"))
+		cpu_mitigations = CPU_MITIGATIONS_OFF;
+	else if (!strcmp(arg, "auto"))
+		cpu_mitigations = CPU_MITIGATIONS_AUTO;
+	else if (!strcmp(arg, "auto,nosmt"))
+		cpu_mitigations = CPU_MITIGATIONS_AUTO_NOSMT;
+	else
+		pr_crit("Unsupported mitigations=%s, system may still be vulnerable\n",
+			arg);
+
+	return 0;
+}
+early_param("mitigations", mitigations_parse_cmdline);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/cred.c linux-libre-5.1.21-gnu/kernel/cred.c
--- linux-libre-5.1-gnu/kernel/cred.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/cred.c	2019-07-28 02:28:39.000000000 -0400
@@ -450,6 +450,15 @@ int commit_creds(struct cred *new)
 		if (task->mm)
 			set_dumpable(task->mm, suid_dumpable);
 		task->pdeath_signal = 0;
+		/*
+		 * If a task drops privileges and becomes nondumpable,
+		 * the dumpability change must become visible before
+		 * the credential change; otherwise, a __ptrace_may_access()
+		 * racing with this change may be able to attach to a task it
+		 * shouldn't be able to attach to (as if the task had dropped
+		 * privileges without becoming nondumpable).
+		 * Pairs with a read barrier in __ptrace_may_access().
+		 */
 		smp_wmb();
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/events/core.c linux-libre-5.1.21-gnu/kernel/events/core.c
--- linux-libre-5.1-gnu/kernel/events/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/events/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -2543,6 +2543,9 @@ unlock:
 	return ret;
 }
 
+static bool exclusive_event_installable(struct perf_event *event,
+					struct perf_event_context *ctx);
+
 /*
  * Attach a performance event to a context.
  *
@@ -2557,6 +2560,8 @@ perf_install_in_context(struct perf_even
 
 	lockdep_assert_held(&ctx->mutex);
 
+	WARN_ON_ONCE(!exclusive_event_installable(event, ctx));
+
 	if (event->cpu != -1)
 		event->cpu = cpu;
 
@@ -4348,7 +4353,7 @@ static int exclusive_event_init(struct p
 {
 	struct pmu *pmu = event->pmu;
 
-	if (!(pmu->capabilities & PERF_PMU_CAP_EXCLUSIVE))
+	if (!is_exclusive_pmu(pmu))
 		return 0;
 
 	/*
@@ -4379,7 +4384,7 @@ static void exclusive_event_destroy(stru
 {
 	struct pmu *pmu = event->pmu;
 
-	if (!(pmu->capabilities & PERF_PMU_CAP_EXCLUSIVE))
+	if (!is_exclusive_pmu(pmu))
 		return;
 
 	/* see comment in exclusive_event_init() */
@@ -4399,14 +4404,15 @@ static bool exclusive_event_match(struct
 	return false;
 }
 
-/* Called under the same ctx::mutex as perf_install_in_context() */
 static bool exclusive_event_installable(struct perf_event *event,
 					struct perf_event_context *ctx)
 {
 	struct perf_event *iter_event;
 	struct pmu *pmu = event->pmu;
 
-	if (!(pmu->capabilities & PERF_PMU_CAP_EXCLUSIVE))
+	lockdep_assert_held(&ctx->mutex);
+
+	if (!is_exclusive_pmu(pmu))
 		return true;
 
 	list_for_each_entry(iter_event, &ctx->event_list, event_entry) {
@@ -4453,12 +4459,20 @@ static void _free_event(struct perf_even
 	if (event->destroy)
 		event->destroy(event);
 
-	if (event->ctx)
-		put_ctx(event->ctx);
-
+	/*
+	 * Must be after ->destroy(), due to uprobe_perf_close() using
+	 * hw.target.
+	 */
 	if (event->hw.target)
 		put_task_struct(event->hw.target);
 
+	/*
+	 * perf_event_free_task() relies on put_ctx() being 'last', in particular
+	 * all task references must be cleaned up.
+	 */
+	if (event->ctx)
+		put_ctx(event->ctx);
+
 	exclusive_event_destroy(event);
 	module_put(event->pmu->module);
 
@@ -4638,8 +4652,17 @@ again:
 	mutex_unlock(&event->child_mutex);
 
 	list_for_each_entry_safe(child, tmp, &free_list, child_list) {
+		void *var = &child->ctx->refcount;
+
 		list_del(&child->child_list);
 		free_event(child);
+
+		/*
+		 * Wake any perf_event_free_task() waiting for this event to be
+		 * freed.
+		 */
+		smp_mb(); /* pairs with wait_var_event() */
+		wake_up_var(var);
 	}
 
 no_ctx:
@@ -5913,7 +5936,7 @@ static void perf_sample_regs_user(struct
 	if (user_mode(regs)) {
 		regs_user->abi = perf_reg_abi(current);
 		regs_user->regs = regs;
-	} else if (current->mm) {
+	} else if (!(current->flags & PF_KTHREAD)) {
 		perf_get_regs_user(regs_user, regs, regs_user_copy);
 	} else {
 		regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE;
@@ -10899,11 +10922,6 @@ SYSCALL_DEFINE5(perf_event_open,
 		goto err_alloc;
 	}
 
-	if ((pmu->capabilities & PERF_PMU_CAP_EXCLUSIVE) && group_leader) {
-		err = -EBUSY;
-		goto err_context;
-	}
-
 	/*
 	 * Look up the group leader (we will attach this event to it):
 	 */
@@ -10991,6 +11009,18 @@ SYSCALL_DEFINE5(perf_event_open,
 				move_group = 0;
 			}
 		}
+
+		/*
+		 * Failure to create exclusive events returns -EBUSY.
+		 */
+		err = -EBUSY;
+		if (!exclusive_event_installable(group_leader, ctx))
+			goto err_locked;
+
+		for_each_sibling_event(sibling, group_leader) {
+			if (!exclusive_event_installable(sibling, ctx))
+				goto err_locked;
+		}
 	} else {
 		mutex_lock(&ctx->mutex);
 	}
@@ -11027,9 +11057,6 @@ SYSCALL_DEFINE5(perf_event_open,
 	 * because we need to serialize with concurrent event creation.
 	 */
 	if (!exclusive_event_installable(event, ctx)) {
-		/* exclusive and group stuff are assumed mutually exclusive */
-		WARN_ON_ONCE(move_group);
-
 		err = -EBUSY;
 		goto err_locked;
 	}
@@ -11496,11 +11523,11 @@ static void perf_free_event(struct perf_
 }
 
 /*
- * Free an unexposed, unused context as created by inheritance by
- * perf_event_init_task below, used by fork() in case of fail.
+ * Free a context as created by inheritance by perf_event_init_task() below,
+ * used by fork() in case of fail.
  *
- * Not all locks are strictly required, but take them anyway to be nice and
- * help out with the lockdep assertions.
+ * Even though the task has never lived, the context and events have been
+ * exposed through the child_list, so we must take care tearing it all down.
  */
 void perf_event_free_task(struct task_struct *task)
 {
@@ -11530,7 +11557,23 @@ void perf_event_free_task(struct task_st
 			perf_free_event(event, ctx);
 
 		mutex_unlock(&ctx->mutex);
-		put_ctx(ctx);
+
+		/*
+		 * perf_event_release_kernel() could've stolen some of our
+		 * child events and still have them on its free_list. In that
+		 * case we must wait for these events to have been freed (in
+		 * particular all their references to this task must've been
+		 * dropped).
+		 *
+		 * Without this copy_process() will unconditionally free this
+		 * task (irrespective of its reference count) and
+		 * _free_event()'s put_task_struct(event->hw.target) will be a
+		 * use-after-free.
+		 *
+		 * Wait for all events to drop their context reference.
+		 */
+		wait_var_event(&ctx->refcount, refcount_read(&ctx->refcount) == 1);
+		put_ctx(ctx); /* must be last */
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/events/ring_buffer.c linux-libre-5.1.21-gnu/kernel/events/ring_buffer.c
--- linux-libre-5.1-gnu/kernel/events/ring_buffer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/events/ring_buffer.c	2019-07-28 02:28:39.000000000 -0400
@@ -48,14 +48,30 @@ static void perf_output_put_handle(struc
 	unsigned long head;
 
 again:
+	/*
+	 * In order to avoid publishing a head value that goes backwards,
+	 * we must ensure the load of @rb->head happens after we've
+	 * incremented @rb->nest.
+	 *
+	 * Otherwise we can observe a @rb->head value before one published
+	 * by an IRQ/NMI happening between the load and the increment.
+	 */
+	barrier();
 	head = local_read(&rb->head);
 
 	/*
-	 * IRQ/NMI can happen here, which means we can miss a head update.
+	 * IRQ/NMI can happen here and advance @rb->head, causing our
+	 * load above to be stale.
 	 */
 
-	if (!local_dec_and_test(&rb->nest))
+	/*
+	 * If this isn't the outermost nesting, we don't have to update
+	 * @rb->user_page->data_head.
+	 */
+	if (local_read(&rb->nest) > 1) {
+		local_dec(&rb->nest);
 		goto out;
+	}
 
 	/*
 	 * Since the mmap() consumer (userspace) can run on a different CPU:
@@ -84,12 +100,21 @@ again:
 	 * See perf_output_begin().
 	 */
 	smp_wmb(); /* B, matches C */
-	rb->user_page->data_head = head;
+	WRITE_ONCE(rb->user_page->data_head, head);
 
 	/*
-	 * Now check if we missed an update -- rely on previous implied
-	 * compiler barriers to force a re-read.
+	 * We must publish the head before decrementing the nest count,
+	 * otherwise an IRQ/NMI can publish a more recent head value and our
+	 * write will (temporarily) publish a stale value.
 	 */
+	barrier();
+	local_set(&rb->nest, 0);
+
+	/*
+	 * Ensure we decrement @rb->nest before we validate the @rb->head.
+	 * Otherwise we cannot be sure we caught the 'last' nested update.
+	 */
+	barrier();
 	if (unlikely(head != local_read(&rb->head))) {
 		local_inc(&rb->nest);
 		goto again;
@@ -471,7 +496,7 @@ void perf_aux_output_end(struct perf_out
 		perf_event_aux_event(handle->event, aux_head, size,
 				     handle->aux_flags);
 
-	rb->user_page->aux_head = rb->aux_head;
+	WRITE_ONCE(rb->user_page->aux_head, rb->aux_head);
 	if (rb_need_aux_wakeup(rb))
 		wakeup = true;
 
@@ -503,7 +528,7 @@ int perf_aux_output_skip(struct perf_out
 
 	rb->aux_head += size;
 
-	rb->user_page->aux_head = rb->aux_head;
+	WRITE_ONCE(rb->user_page->aux_head, rb->aux_head);
 	if (rb_need_aux_wakeup(rb)) {
 		perf_output_wakeup(handle);
 		handle->wakeup = rb->aux_wakeup + rb->aux_watermark;
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/fork.c linux-libre-5.1.21-gnu/kernel/fork.c
--- linux-libre-5.1-gnu/kernel/fork.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/fork.c	2019-07-28 02:28:39.000000000 -0400
@@ -245,7 +245,11 @@ static unsigned long *alloc_thread_stack
 	struct page *page = alloc_pages_node(node, THREADINFO_GFP,
 					     THREAD_SIZE_ORDER);
 
-	return page ? page_address(page) : NULL;
+	if (likely(page)) {
+		tsk->stack = page_address(page);
+		return tsk->stack;
+	}
+	return NULL;
 #endif
 }
 
@@ -952,6 +956,15 @@ static void mm_init_aio(struct mm_struct
 #endif
 }
 
+static __always_inline void mm_clear_owner(struct mm_struct *mm,
+					   struct task_struct *p)
+{
+#ifdef CONFIG_MEMCG
+	if (mm->owner == p)
+		WRITE_ONCE(mm->owner, NULL);
+#endif
+}
+
 static void mm_init_owner(struct mm_struct *mm, struct task_struct *p)
 {
 #ifdef CONFIG_MEMCG
@@ -1331,6 +1344,7 @@ static struct mm_struct *dup_mm(struct t
 free_pt:
 	/* don't put binfmt in mmput, we haven't got module yet */
 	mm->binfmt = NULL;
+	mm_init_owner(mm, NULL);
 	mmput(mm);
 
 fail_nomem:
@@ -1662,6 +1676,21 @@ static inline void rcu_copy_process(stru
 #endif /* #ifdef CONFIG_TASKS_RCU */
 }
 
+static void __delayed_free_task(struct rcu_head *rhp)
+{
+	struct task_struct *tsk = container_of(rhp, struct task_struct, rcu);
+
+	free_task(tsk);
+}
+
+static __always_inline void delayed_free_task(struct task_struct *tsk)
+{
+	if (IS_ENABLED(CONFIG_MEMCG))
+		call_rcu(&tsk->rcu, __delayed_free_task);
+	else
+		free_task(tsk);
+}
+
 /*
  * This creates a new process as a copy of the old one,
  * but does not actually start it yet.
@@ -2123,8 +2152,10 @@ bad_fork_cleanup_io:
 bad_fork_cleanup_namespaces:
 	exit_task_namespaces(p);
 bad_fork_cleanup_mm:
-	if (p->mm)
+	if (p->mm) {
+		mm_clear_owner(p->mm, p);
 		mmput(p->mm);
+	}
 bad_fork_cleanup_signal:
 	if (!(clone_flags & CLONE_THREAD))
 		free_signal_struct(p->signal);
@@ -2155,7 +2186,7 @@ bad_fork_cleanup_count:
 bad_fork_free:
 	p->state = TASK_DEAD;
 	put_task_stack(p);
-	free_task(p);
+	delayed_free_task(p);
 fork_out:
 	spin_lock_irq(&current->sighand->siglock);
 	hlist_del_init(&delayed.node);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/futex.c linux-libre-5.1.21-gnu/kernel/futex.c
--- linux-libre-5.1-gnu/kernel/futex.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/futex.c	2019-07-28 02:28:39.000000000 -0400
@@ -1311,13 +1311,15 @@ static int lookup_pi_state(u32 __user *u
 
 static int lock_pi_update_atomic(u32 __user *uaddr, u32 uval, u32 newval)
 {
+	int err;
 	u32 uninitialized_var(curval);
 
 	if (unlikely(should_fail_futex(true)))
 		return -EFAULT;
 
-	if (unlikely(cmpxchg_futex_value_locked(&curval, uaddr, uval, newval)))
-		return -EFAULT;
+	err = cmpxchg_futex_value_locked(&curval, uaddr, uval, newval);
+	if (unlikely(err))
+		return err;
 
 	/* If user space value changed, let the caller retry */
 	return curval != uval ? -EAGAIN : 0;
@@ -1502,10 +1504,8 @@ static int wake_futex_pi(u32 __user *uad
 	if (unlikely(should_fail_futex(true)))
 		ret = -EFAULT;
 
-	if (cmpxchg_futex_value_locked(&curval, uaddr, uval, newval)) {
-		ret = -EFAULT;
-
-	} else if (curval != uval) {
+	ret = cmpxchg_futex_value_locked(&curval, uaddr, uval, newval);
+	if (!ret && (curval != uval)) {
 		/*
 		 * If a unconditional UNLOCK_PI operation (user space did not
 		 * try the TID->0 transition) raced with a waiter setting the
@@ -1700,32 +1700,32 @@ retry_private:
 	double_lock_hb(hb1, hb2);
 	op_ret = futex_atomic_op_inuser(op, uaddr2);
 	if (unlikely(op_ret < 0)) {
-
 		double_unlock_hb(hb1, hb2);
 
-#ifndef CONFIG_MMU
-		/*
-		 * we don't get EFAULT from MMU faults if we don't have an MMU,
-		 * but we might get them from range checking
-		 */
-		ret = op_ret;
-		goto out_put_keys;
-#endif
-
-		if (unlikely(op_ret != -EFAULT)) {
+		if (!IS_ENABLED(CONFIG_MMU) ||
+		    unlikely(op_ret != -EFAULT && op_ret != -EAGAIN)) {
+			/*
+			 * we don't get EFAULT from MMU faults if we don't have
+			 * an MMU, but we might get them from range checking
+			 */
 			ret = op_ret;
 			goto out_put_keys;
 		}
 
-		ret = fault_in_user_writeable(uaddr2);
-		if (ret)
-			goto out_put_keys;
+		if (op_ret == -EFAULT) {
+			ret = fault_in_user_writeable(uaddr2);
+			if (ret)
+				goto out_put_keys;
+		}
 
-		if (!(flags & FLAGS_SHARED))
+		if (!(flags & FLAGS_SHARED)) {
+			cond_resched();
 			goto retry_private;
+		}
 
 		put_futex_key(&key2);
 		put_futex_key(&key1);
+		cond_resched();
 		goto retry;
 	}
 
@@ -2350,7 +2350,7 @@ static int fixup_pi_state_owner(u32 __us
 	u32 uval, uninitialized_var(curval), newval;
 	struct task_struct *oldowner, *newowner;
 	u32 newtid;
-	int ret;
+	int ret, err = 0;
 
 	lockdep_assert_held(q->lock_ptr);
 
@@ -2421,14 +2421,17 @@ retry:
 	if (!pi_state->owner)
 		newtid |= FUTEX_OWNER_DIED;
 
-	if (get_futex_value_locked(&uval, uaddr))
-		goto handle_fault;
+	err = get_futex_value_locked(&uval, uaddr);
+	if (err)
+		goto handle_err;
 
 	for (;;) {
 		newval = (uval & FUTEX_OWNER_DIED) | newtid;
 
-		if (cmpxchg_futex_value_locked(&curval, uaddr, uval, newval))
-			goto handle_fault;
+		err = cmpxchg_futex_value_locked(&curval, uaddr, uval, newval);
+		if (err)
+			goto handle_err;
+
 		if (curval == uval)
 			break;
 		uval = curval;
@@ -2456,23 +2459,37 @@ retry:
 	return 0;
 
 	/*
-	 * To handle the page fault we need to drop the locks here. That gives
-	 * the other task (either the highest priority waiter itself or the
-	 * task which stole the rtmutex) the chance to try the fixup of the
-	 * pi_state. So once we are back from handling the fault we need to
-	 * check the pi_state after reacquiring the locks and before trying to
-	 * do another fixup. When the fixup has been done already we simply
-	 * return.
+	 * In order to reschedule or handle a page fault, we need to drop the
+	 * locks here. In the case of a fault, this gives the other task
+	 * (either the highest priority waiter itself or the task which stole
+	 * the rtmutex) the chance to try the fixup of the pi_state. So once we
+	 * are back from handling the fault we need to check the pi_state after
+	 * reacquiring the locks and before trying to do another fixup. When
+	 * the fixup has been done already we simply return.
 	 *
 	 * Note: we hold both hb->lock and pi_mutex->wait_lock. We can safely
 	 * drop hb->lock since the caller owns the hb -> futex_q relation.
 	 * Dropping the pi_mutex->wait_lock requires the state revalidate.
 	 */
-handle_fault:
+handle_err:
 	raw_spin_unlock_irq(&pi_state->pi_mutex.wait_lock);
 	spin_unlock(q->lock_ptr);
 
-	ret = fault_in_user_writeable(uaddr);
+	switch (err) {
+	case -EFAULT:
+		ret = fault_in_user_writeable(uaddr);
+		break;
+
+	case -EAGAIN:
+		cond_resched();
+		ret = 0;
+		break;
+
+	default:
+		WARN_ON_ONCE(1);
+		ret = err;
+		break;
+	}
 
 	spin_lock(q->lock_ptr);
 	raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
@@ -3041,10 +3058,8 @@ retry:
 		 * A unconditional UNLOCK_PI op raced against a waiter
 		 * setting the FUTEX_WAITERS bit. Try again.
 		 */
-		if (ret == -EAGAIN) {
-			put_futex_key(&key);
-			goto retry;
-		}
+		if (ret == -EAGAIN)
+			goto pi_retry;
 		/*
 		 * wake_futex_pi has detected invalid state. Tell user
 		 * space.
@@ -3059,9 +3074,19 @@ retry:
 	 * preserve the WAITERS bit not the OWNER_DIED one. We are the
 	 * owner.
 	 */
-	if (cmpxchg_futex_value_locked(&curval, uaddr, uval, 0)) {
+	if ((ret = cmpxchg_futex_value_locked(&curval, uaddr, uval, 0))) {
 		spin_unlock(&hb->lock);
-		goto pi_faulted;
+		switch (ret) {
+		case -EFAULT:
+			goto pi_faulted;
+
+		case -EAGAIN:
+			goto pi_retry;
+
+		default:
+			WARN_ON_ONCE(1);
+			goto out_putkey;
+		}
 	}
 
 	/*
@@ -3075,6 +3100,11 @@ out_putkey:
 	put_futex_key(&key);
 	return ret;
 
+pi_retry:
+	put_futex_key(&key);
+	cond_resched();
+	goto retry;
+
 pi_faulted:
 	put_futex_key(&key);
 
@@ -3435,6 +3465,7 @@ err_unlock:
 static int handle_futex_death(u32 __user *uaddr, struct task_struct *curr, int pi)
 {
 	u32 uval, uninitialized_var(nval), mval;
+	int err;
 
 	/* Futex address must be 32bit aligned */
 	if ((((unsigned long)uaddr) % sizeof(*uaddr)) != 0)
@@ -3444,42 +3475,57 @@ retry:
 	if (get_user(uval, uaddr))
 		return -1;
 
-	if ((uval & FUTEX_TID_MASK) == task_pid_vnr(curr)) {
-		/*
-		 * Ok, this dying thread is truly holding a futex
-		 * of interest. Set the OWNER_DIED bit atomically
-		 * via cmpxchg, and if the value had FUTEX_WAITERS
-		 * set, wake up a waiter (if any). (We have to do a
-		 * futex_wake() even if OWNER_DIED is already set -
-		 * to handle the rare but possible case of recursive
-		 * thread-death.) The rest of the cleanup is done in
-		 * userspace.
-		 */
-		mval = (uval & FUTEX_WAITERS) | FUTEX_OWNER_DIED;
-		/*
-		 * We are not holding a lock here, but we want to have
-		 * the pagefault_disable/enable() protection because
-		 * we want to handle the fault gracefully. If the
-		 * access fails we try to fault in the futex with R/W
-		 * verification via get_user_pages. get_user() above
-		 * does not guarantee R/W access. If that fails we
-		 * give up and leave the futex locked.
-		 */
-		if (cmpxchg_futex_value_locked(&nval, uaddr, uval, mval)) {
+	if ((uval & FUTEX_TID_MASK) != task_pid_vnr(curr))
+		return 0;
+
+	/*
+	 * Ok, this dying thread is truly holding a futex
+	 * of interest. Set the OWNER_DIED bit atomically
+	 * via cmpxchg, and if the value had FUTEX_WAITERS
+	 * set, wake up a waiter (if any). (We have to do a
+	 * futex_wake() even if OWNER_DIED is already set -
+	 * to handle the rare but possible case of recursive
+	 * thread-death.) The rest of the cleanup is done in
+	 * userspace.
+	 */
+	mval = (uval & FUTEX_WAITERS) | FUTEX_OWNER_DIED;
+
+	/*
+	 * We are not holding a lock here, but we want to have
+	 * the pagefault_disable/enable() protection because
+	 * we want to handle the fault gracefully. If the
+	 * access fails we try to fault in the futex with R/W
+	 * verification via get_user_pages. get_user() above
+	 * does not guarantee R/W access. If that fails we
+	 * give up and leave the futex locked.
+	 */
+	if ((err = cmpxchg_futex_value_locked(&nval, uaddr, uval, mval))) {
+		switch (err) {
+		case -EFAULT:
 			if (fault_in_user_writeable(uaddr))
 				return -1;
 			goto retry;
-		}
-		if (nval != uval)
+
+		case -EAGAIN:
+			cond_resched();
 			goto retry;
 
-		/*
-		 * Wake robust non-PI futexes here. The wakeup of
-		 * PI futexes happens in exit_pi_state():
-		 */
-		if (!pi && (uval & FUTEX_WAITERS))
-			futex_wake(uaddr, 1, 1, FUTEX_BITSET_MATCH_ANY);
+		default:
+			WARN_ON_ONCE(1);
+			return err;
+		}
 	}
+
+	if (nval != uval)
+		goto retry;
+
+	/*
+	 * Wake robust non-PI futexes here. The wakeup of
+	 * PI futexes happens in exit_pi_state():
+	 */
+	if (!pi && (uval & FUTEX_WAITERS))
+		futex_wake(uaddr, 1, 1, FUTEX_BITSET_MATCH_ANY);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/iomem.c linux-libre-5.1.21-gnu/kernel/iomem.c
--- linux-libre-5.1-gnu/kernel/iomem.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/iomem.c	2019-07-28 02:28:39.000000000 -0400
@@ -121,7 +121,7 @@ EXPORT_SYMBOL(memremap);
 
 void memunmap(void *addr)
 {
-	if (is_vmalloc_addr(addr))
+	if (is_ioremap_addr(addr))
 		iounmap((void __iomem *) addr);
 }
 EXPORT_SYMBOL(memunmap);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/irq/autoprobe.c linux-libre-5.1.21-gnu/kernel/irq/autoprobe.c
--- linux-libre-5.1-gnu/kernel/irq/autoprobe.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/irq/autoprobe.c	2019-07-28 02:28:39.000000000 -0400
@@ -90,7 +90,7 @@ unsigned long probe_irq_on(void)
 			/* It triggered already - consider it spurious. */
 			if (!(desc->istate & IRQS_WAITING)) {
 				desc->istate &= ~IRQS_AUTODETECT;
-				irq_shutdown(desc);
+				irq_shutdown_and_deactivate(desc);
 			} else
 				if (i < 32)
 					mask |= 1 << i;
@@ -127,7 +127,7 @@ unsigned int probe_irq_mask(unsigned lon
 				mask |= 1 << i;
 
 			desc->istate &= ~IRQS_AUTODETECT;
-			irq_shutdown(desc);
+			irq_shutdown_and_deactivate(desc);
 		}
 		raw_spin_unlock_irq(&desc->lock);
 	}
@@ -169,7 +169,7 @@ int probe_irq_off(unsigned long val)
 				nr_of_irqs++;
 			}
 			desc->istate &= ~IRQS_AUTODETECT;
-			irq_shutdown(desc);
+			irq_shutdown_and_deactivate(desc);
 		}
 		raw_spin_unlock_irq(&desc->lock);
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/irq/chip.c linux-libre-5.1.21-gnu/kernel/irq/chip.c
--- linux-libre-5.1-gnu/kernel/irq/chip.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/irq/chip.c	2019-07-28 02:28:39.000000000 -0400
@@ -314,6 +314,12 @@ void irq_shutdown(struct irq_desc *desc)
 		}
 		irq_state_clr_started(desc);
 	}
+}
+
+
+void irq_shutdown_and_deactivate(struct irq_desc *desc)
+{
+	irq_shutdown(desc);
 	/*
 	 * This must be called even if the interrupt was never started up,
 	 * because the activation can happen before the interrupt is
@@ -748,6 +754,8 @@ void handle_fasteoi_nmi(struct irq_desc
 	unsigned int irq = irq_desc_get_irq(desc);
 	irqreturn_t res;
 
+	__kstat_incr_irqs_this_cpu(desc);
+
 	trace_irq_handler_entry(irq, action);
 	/*
 	 * NMIs cannot be shared, there is only one action.
@@ -962,6 +970,8 @@ void handle_percpu_devid_fasteoi_nmi(str
 	unsigned int irq = irq_desc_get_irq(desc);
 	irqreturn_t res;
 
+	__kstat_incr_irqs_this_cpu(desc);
+
 	trace_irq_handler_entry(irq, action);
 	res = action->handler(irq, raw_cpu_ptr(action->percpu_dev_id));
 	trace_irq_handler_exit(irq, action, res);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/irq/cpuhotplug.c linux-libre-5.1.21-gnu/kernel/irq/cpuhotplug.c
--- linux-libre-5.1-gnu/kernel/irq/cpuhotplug.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/irq/cpuhotplug.c	2019-07-28 02:28:39.000000000 -0400
@@ -116,7 +116,7 @@ static bool migrate_one_irq(struct irq_d
 		 */
 		if (irqd_affinity_is_managed(d)) {
 			irqd_set_managed_shutdown(d);
-			irq_shutdown(desc);
+			irq_shutdown_and_deactivate(desc);
 			return false;
 		}
 		affinity = cpu_online_mask;
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/irq/internals.h linux-libre-5.1.21-gnu/kernel/irq/internals.h
--- linux-libre-5.1-gnu/kernel/irq/internals.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/irq/internals.h	2019-07-28 02:28:39.000000000 -0400
@@ -82,6 +82,7 @@ extern int irq_activate_and_startup(stru
 extern int irq_startup(struct irq_desc *desc, bool resend, bool force);
 
 extern void irq_shutdown(struct irq_desc *desc);
+extern void irq_shutdown_and_deactivate(struct irq_desc *desc);
 extern void irq_enable(struct irq_desc *desc);
 extern void irq_disable(struct irq_desc *desc);
 extern void irq_percpu_enable(struct irq_desc *desc, unsigned int cpu);
@@ -96,6 +97,10 @@ static inline void irq_mark_irq(unsigned
 extern void irq_mark_irq(unsigned int irq);
 #endif
 
+extern int __irq_get_irqchip_state(struct irq_data *data,
+				   enum irqchip_irq_state which,
+				   bool *state);
+
 extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
 
 irqreturn_t __handle_irq_event_percpu(struct irq_desc *desc, unsigned int *flags);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/irq/irqdesc.c linux-libre-5.1.21-gnu/kernel/irq/irqdesc.c
--- linux-libre-5.1-gnu/kernel/irq/irqdesc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/irq/irqdesc.c	2019-07-28 02:28:39.000000000 -0400
@@ -679,6 +679,8 @@ int __handle_domain_irq(struct irq_domai
  * @hwirq:	The HW irq number to convert to a logical one
  * @regs:	Register file coming from the low-level handling code
  *
+ *		This function must be called from an NMI context.
+ *
  * Returns:	0 on success, or -EINVAL if conversion has failed
  */
 int handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq,
@@ -688,7 +690,10 @@ int handle_domain_nmi(struct irq_domain
 	unsigned int irq;
 	int ret = 0;
 
-	nmi_enter();
+	/*
+	 * NMI context needs to be setup earlier in order to deal with tracing.
+	 */
+	WARN_ON(!in_nmi());
 
 	irq = irq_find_mapping(domain, hwirq);
 
@@ -701,7 +706,6 @@ int handle_domain_nmi(struct irq_domain
 	else
 		ret = -EINVAL;
 
-	nmi_exit();
 	set_irq_regs(old_regs);
 	return ret;
 }
@@ -945,6 +949,11 @@ unsigned int kstat_irqs_cpu(unsigned int
 			*per_cpu_ptr(desc->kstat_irqs, cpu) : 0;
 }
 
+static bool irq_is_nmi(struct irq_desc *desc)
+{
+	return desc->istate & IRQS_NMI;
+}
+
 /**
  * kstat_irqs - Get the statistics for an interrupt
  * @irq:	The interrupt number
@@ -962,7 +971,8 @@ unsigned int kstat_irqs(unsigned int irq
 	if (!desc || !desc->kstat_irqs)
 		return 0;
 	if (!irq_settings_is_per_cpu_devid(desc) &&
-	    !irq_settings_is_per_cpu(desc))
+	    !irq_settings_is_per_cpu(desc) &&
+	    !irq_is_nmi(desc))
 	    return desc->tot_count;
 
 	for_each_possible_cpu(cpu)
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/irq/manage.c linux-libre-5.1.21-gnu/kernel/irq/manage.c
--- linux-libre-5.1-gnu/kernel/irq/manage.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/irq/manage.c	2019-07-28 02:28:39.000000000 -0400
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/random.h>
 #include <linux/interrupt.h>
+#include <linux/irqdomain.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
 #include <linux/sched/rt.h>
@@ -34,8 +35,9 @@ static int __init setup_forced_irqthread
 early_param("threadirqs", setup_forced_irqthreads);
 #endif
 
-static void __synchronize_hardirq(struct irq_desc *desc)
+static void __synchronize_hardirq(struct irq_desc *desc, bool sync_chip)
 {
+	struct irq_data *irqd = irq_desc_get_irq_data(desc);
 	bool inprogress;
 
 	do {
@@ -51,6 +53,20 @@ static void __synchronize_hardirq(struct
 		/* Ok, that indicated we're done: double-check carefully. */
 		raw_spin_lock_irqsave(&desc->lock, flags);
 		inprogress = irqd_irq_inprogress(&desc->irq_data);
+
+		/*
+		 * If requested and supported, check at the chip whether it
+		 * is in flight at the hardware level, i.e. already pending
+		 * in a CPU and waiting for service and acknowledge.
+		 */
+		if (!inprogress && sync_chip) {
+			/*
+			 * Ignore the return code. inprogress is only updated
+			 * when the chip supports it.
+			 */
+			__irq_get_irqchip_state(irqd, IRQCHIP_STATE_ACTIVE,
+						&inprogress);
+		}
 		raw_spin_unlock_irqrestore(&desc->lock, flags);
 
 		/* Oops, that failed? */
@@ -73,13 +89,18 @@ static void __synchronize_hardirq(struct
  *	Returns: false if a threaded handler is active.
  *
  *	This function may be called - with care - from IRQ context.
+ *
+ *	It does not check whether there is an interrupt in flight at the
+ *	hardware level, but not serviced yet, as this might deadlock when
+ *	called with interrupts disabled and the target CPU of the interrupt
+ *	is the current CPU.
  */
 bool synchronize_hardirq(unsigned int irq)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 
 	if (desc) {
-		__synchronize_hardirq(desc);
+		__synchronize_hardirq(desc, false);
 		return !atomic_read(&desc->threads_active);
 	}
 
@@ -95,14 +116,19 @@ EXPORT_SYMBOL(synchronize_hardirq);
  *	to complete before returning. If you use this function while
  *	holding a resource the IRQ handler may need you will deadlock.
  *
- *	This function may be called - with care - from IRQ context.
+ *	Can only be called from preemptible code as it might sleep when
+ *	an interrupt thread is associated to @irq.
+ *
+ *	It optionally makes sure (when the irq chip supports that method)
+ *	that the interrupt is not pending in any CPU and waiting for
+ *	service.
  */
 void synchronize_irq(unsigned int irq)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 
 	if (desc) {
-		__synchronize_hardirq(desc);
+		__synchronize_hardirq(desc, true);
 		/*
 		 * We made sure that no hardirq handler is
 		 * running. Now verify that no threaded handlers are
@@ -357,8 +383,10 @@ irq_set_affinity_notifier(unsigned int i
 	desc->affinity_notify = notify;
 	raw_spin_unlock_irqrestore(&desc->lock, flags);
 
-	if (old_notify)
+	if (old_notify) {
+		cancel_work_sync(&old_notify->work);
 		kref_put(&old_notify->kref, old_notify->release);
+	}
 
 	return 0;
 }
@@ -1697,6 +1725,7 @@ static struct irqaction *__free_irq(stru
 	/* If this was the last handler, shut down the IRQ line: */
 	if (!desc->action) {
 		irq_settings_clr_disable_unlazy(desc);
+		/* Only shutdown. Deactivate after synchronize_hardirq() */
 		irq_shutdown(desc);
 	}
 
@@ -1725,8 +1754,12 @@ static struct irqaction *__free_irq(stru
 
 	unregister_handler_proc(irq, action);
 
-	/* Make sure it's not being used on another CPU: */
-	synchronize_hardirq(irq);
+	/*
+	 * Make sure it's not being used on another CPU and if the chip
+	 * supports it also make sure that there is no (not yet serviced)
+	 * interrupt in flight at the hardware level.
+	 */
+	__synchronize_hardirq(desc, true);
 
 #ifdef CONFIG_DEBUG_SHIRQ
 	/*
@@ -1766,6 +1799,14 @@ static struct irqaction *__free_irq(stru
 		 * require it to deallocate resources over the slow bus.
 		 */
 		chip_bus_lock(desc);
+		/*
+		 * There is no interrupt on the fly anymore. Deactivate it
+		 * completely.
+		 */
+		raw_spin_lock_irqsave(&desc->lock, flags);
+		irq_domain_deactivate_irq(&desc->irq_data);
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
+
 		irq_release_resources(desc);
 		chip_bus_sync_unlock(desc);
 		irq_remove_timings(desc);
@@ -1853,7 +1894,7 @@ static const void *__cleanup_nmi(unsigne
 	}
 
 	irq_settings_clr_disable_unlazy(desc);
-	irq_shutdown(desc);
+	irq_shutdown_and_deactivate(desc);
 
 	irq_release_resources(desc);
 
@@ -2576,6 +2617,28 @@ out:
 	irq_put_desc_unlock(desc, flags);
 }
 
+int __irq_get_irqchip_state(struct irq_data *data, enum irqchip_irq_state which,
+			    bool *state)
+{
+	struct irq_chip *chip;
+	int err = -EINVAL;
+
+	do {
+		chip = irq_data_get_irq_chip(data);
+		if (chip->irq_get_irqchip_state)
+			break;
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+		data = data->parent_data;
+#else
+		data = NULL;
+#endif
+	} while (data);
+
+	if (data)
+		err = chip->irq_get_irqchip_state(data, which, state);
+	return err;
+}
+
 /**
  *	irq_get_irqchip_state - returns the irqchip state of a interrupt.
  *	@irq: Interrupt line that is forwarded to a VM
@@ -2594,7 +2657,6 @@ int irq_get_irqchip_state(unsigned int i
 {
 	struct irq_desc *desc;
 	struct irq_data *data;
-	struct irq_chip *chip;
 	unsigned long flags;
 	int err = -EINVAL;
 
@@ -2604,19 +2666,7 @@ int irq_get_irqchip_state(unsigned int i
 
 	data = irq_desc_get_irq_data(desc);
 
-	do {
-		chip = irq_data_get_irq_chip(data);
-		if (chip->irq_get_irqchip_state)
-			break;
-#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
-		data = data->parent_data;
-#else
-		data = NULL;
-#endif
-	} while (data);
-
-	if (data)
-		err = chip->irq_get_irqchip_state(data, which, state);
+	err = __irq_get_irqchip_state(data, which, state);
 
 	irq_put_desc_busunlock(desc, flags);
 	return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/irq_work.c linux-libre-5.1.21-gnu/kernel/irq_work.c
--- linux-libre-5.1-gnu/kernel/irq_work.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/irq_work.c	2019-07-28 02:28:39.000000000 -0400
@@ -56,61 +56,70 @@ void __weak arch_irq_work_raise(void)
 	 */
 }
 
-/*
- * Enqueue the irq_work @work on @cpu unless it's already pending
- * somewhere.
- *
- * Can be re-enqueued while the callback is still in progress.
- */
-bool irq_work_queue_on(struct irq_work *work, int cpu)
+/* Enqueue on current CPU, work must already be claimed and preempt disabled */
+static void __irq_work_queue_local(struct irq_work *work)
 {
-	/* All work should have been flushed before going offline */
-	WARN_ON_ONCE(cpu_is_offline(cpu));
-
-#ifdef CONFIG_SMP
-
-	/* Arch remote IPI send/receive backend aren't NMI safe */
-	WARN_ON_ONCE(in_nmi());
+	/* If the work is "lazy", handle it from next tick if any */
+	if (work->flags & IRQ_WORK_LAZY) {
+		if (llist_add(&work->llnode, this_cpu_ptr(&lazy_list)) &&
+		    tick_nohz_tick_stopped())
+			arch_irq_work_raise();
+	} else {
+		if (llist_add(&work->llnode, this_cpu_ptr(&raised_list)))
+			arch_irq_work_raise();
+	}
+}
 
+/* Enqueue the irq work @work on the current CPU */
+bool irq_work_queue(struct irq_work *work)
+{
 	/* Only queue if not already pending */
 	if (!irq_work_claim(work))
 		return false;
 
-	if (llist_add(&work->llnode, &per_cpu(raised_list, cpu)))
-		arch_send_call_function_single_ipi(cpu);
-
-#else /* #ifdef CONFIG_SMP */
-	irq_work_queue(work);
-#endif /* #else #ifdef CONFIG_SMP */
+	/* Queue the entry and raise the IPI if needed. */
+	preempt_disable();
+	__irq_work_queue_local(work);
+	preempt_enable();
 
 	return true;
 }
+EXPORT_SYMBOL_GPL(irq_work_queue);
 
-/* Enqueue the irq work @work on the current CPU */
-bool irq_work_queue(struct irq_work *work)
+/*
+ * Enqueue the irq_work @work on @cpu unless it's already pending
+ * somewhere.
+ *
+ * Can be re-enqueued while the callback is still in progress.
+ */
+bool irq_work_queue_on(struct irq_work *work, int cpu)
 {
+#ifndef CONFIG_SMP
+	return irq_work_queue(work);
+
+#else /* CONFIG_SMP: */
+	/* All work should have been flushed before going offline */
+	WARN_ON_ONCE(cpu_is_offline(cpu));
+
 	/* Only queue if not already pending */
 	if (!irq_work_claim(work))
 		return false;
 
-	/* Queue the entry and raise the IPI if needed. */
 	preempt_disable();
-
-	/* If the work is "lazy", handle it from next tick if any */
-	if (work->flags & IRQ_WORK_LAZY) {
-		if (llist_add(&work->llnode, this_cpu_ptr(&lazy_list)) &&
-		    tick_nohz_tick_stopped())
-			arch_irq_work_raise();
+	if (cpu != smp_processor_id()) {
+		/* Arch remote IPI send/receive backend aren't NMI safe */
+		WARN_ON_ONCE(in_nmi());
+		if (llist_add(&work->llnode, &per_cpu(raised_list, cpu)))
+			arch_send_call_function_single_ipi(cpu);
 	} else {
-		if (llist_add(&work->llnode, this_cpu_ptr(&raised_list)))
-			arch_irq_work_raise();
+		__irq_work_queue_local(work);
 	}
-
 	preempt_enable();
 
 	return true;
+#endif /* CONFIG_SMP */
 }
-EXPORT_SYMBOL_GPL(irq_work_queue);
+
 
 bool irq_work_needs_cpu(void)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/jump_label.c linux-libre-5.1.21-gnu/kernel/jump_label.c
--- linux-libre-5.1-gnu/kernel/jump_label.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/jump_label.c	2019-07-28 02:28:39.000000000 -0400
@@ -206,6 +206,8 @@ static void __static_key_slow_dec_cpuslo
 					   unsigned long rate_limit,
 					   struct delayed_work *work)
 {
+	int val;
+
 	lockdep_assert_cpus_held();
 
 	/*
@@ -215,17 +217,20 @@ static void __static_key_slow_dec_cpuslo
 	 * returns is unbalanced, because all other static_key_slow_inc()
 	 * instances block while the update is in progress.
 	 */
-	if (!atomic_dec_and_mutex_lock(&key->enabled, &jump_label_mutex)) {
-		WARN(atomic_read(&key->enabled) < 0,
-		     "jump label: negative count!\n");
+	val = atomic_fetch_add_unless(&key->enabled, -1, 1);
+	if (val != 1) {
+		WARN(val < 0, "jump label: negative count!\n");
 		return;
 	}
 
-	if (rate_limit) {
-		atomic_inc(&key->enabled);
-		schedule_delayed_work(work, rate_limit);
-	} else {
-		jump_label_update(key);
+	jump_label_lock();
+	if (atomic_dec_and_test(&key->enabled)) {
+		if (rate_limit) {
+			atomic_inc(&key->enabled);
+			schedule_delayed_work(work, rate_limit);
+		} else {
+			jump_label_update(key);
+		}
 	}
 	jump_label_unlock();
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/livepatch/core.c linux-libre-5.1.21-gnu/kernel/livepatch/core.c
--- linux-libre-5.1-gnu/kernel/livepatch/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/livepatch/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -30,6 +30,7 @@
 #include <linux/elf.h>
 #include <linux/moduleloader.h>
 #include <linux/completion.h>
+#include <linux/memory.h>
 #include <asm/cacheflush.h>
 #include "core.h"
 #include "patch.h"
@@ -746,16 +747,21 @@ static int klp_init_object_loaded(struct
 	struct klp_func *func;
 	int ret;
 
+	mutex_lock(&text_mutex);
+
 	module_disable_ro(patch->mod);
 	ret = klp_write_object_relocations(patch->mod, obj);
 	if (ret) {
 		module_enable_ro(patch->mod, true);
+		mutex_unlock(&text_mutex);
 		return ret;
 	}
 
 	arch_klp_init_object_loaded(patch, obj);
 	module_enable_ro(patch->mod, true);
 
+	mutex_unlock(&text_mutex);
+
 	klp_for_each_func(obj, func) {
 		ret = klp_find_object_symbol(obj->name, func->old_name,
 					     func->old_sympos,
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/locking/lockdep.c linux-libre-5.1.21-gnu/kernel/locking/lockdep.c
--- linux-libre-5.1-gnu/kernel/locking/lockdep.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/locking/lockdep.c	2019-07-28 02:28:39.000000000 -0400
@@ -3611,19 +3611,19 @@ static int __lock_acquire(struct lockdep
 	if (depth) {
 		hlock = curr->held_locks + depth - 1;
 		if (hlock->class_idx == class_idx && nest_lock) {
-			if (hlock->references) {
-				/*
-				 * Check: unsigned int references:12, overflow.
-				 */
-				if (DEBUG_LOCKS_WARN_ON(hlock->references == (1 << 12)-1))
-					return 0;
+			if (!references)
+				references++;
 
+			if (!hlock->references)
 				hlock->references++;
-			} else {
-				hlock->references = 2;
-			}
 
-			return 1;
+			hlock->references += references;
+
+			/* Overflow */
+			if (DEBUG_LOCKS_WARN_ON(hlock->references < references))
+				return 0;
+
+			return 2;
 		}
 	}
 
@@ -3829,22 +3829,33 @@ out:
 }
 
 static int reacquire_held_locks(struct task_struct *curr, unsigned int depth,
-			      int idx)
+				int idx, unsigned int *merged)
 {
 	struct held_lock *hlock;
+	int first_idx = idx;
 
 	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
 		return 0;
 
 	for (hlock = curr->held_locks + idx; idx < depth; idx++, hlock++) {
-		if (!__lock_acquire(hlock->instance,
+		switch (__lock_acquire(hlock->instance,
 				    hlock_class(hlock)->subclass,
 				    hlock->trylock,
 				    hlock->read, hlock->check,
 				    hlock->hardirqs_off,
 				    hlock->nest_lock, hlock->acquire_ip,
-				    hlock->references, hlock->pin_count))
+				    hlock->references, hlock->pin_count)) {
+		case 0:
 			return 1;
+		case 1:
+			break;
+		case 2:
+			*merged += (idx == first_idx);
+			break;
+		default:
+			WARN_ON(1);
+			return 0;
+		}
 	}
 	return 0;
 }
@@ -3855,9 +3866,9 @@ __lock_set_class(struct lockdep_map *loc
 		 unsigned long ip)
 {
 	struct task_struct *curr = current;
+	unsigned int depth, merged = 0;
 	struct held_lock *hlock;
 	struct lock_class *class;
-	unsigned int depth;
 	int i;
 
 	if (unlikely(!debug_locks))
@@ -3882,14 +3893,14 @@ __lock_set_class(struct lockdep_map *loc
 	curr->lockdep_depth = i;
 	curr->curr_chain_key = hlock->prev_chain_key;
 
-	if (reacquire_held_locks(curr, depth, i))
+	if (reacquire_held_locks(curr, depth, i, &merged))
 		return 0;
 
 	/*
 	 * I took it apart and put it back together again, except now I have
 	 * these 'spare' parts.. where shall I put them.
 	 */
-	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth))
+	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - merged))
 		return 0;
 	return 1;
 }
@@ -3897,8 +3908,8 @@ __lock_set_class(struct lockdep_map *loc
 static int __lock_downgrade(struct lockdep_map *lock, unsigned long ip)
 {
 	struct task_struct *curr = current;
+	unsigned int depth, merged = 0;
 	struct held_lock *hlock;
-	unsigned int depth;
 	int i;
 
 	if (unlikely(!debug_locks))
@@ -3923,7 +3934,11 @@ static int __lock_downgrade(struct lockd
 	hlock->read = 1;
 	hlock->acquire_ip = ip;
 
-	if (reacquire_held_locks(curr, depth, i))
+	if (reacquire_held_locks(curr, depth, i, &merged))
+		return 0;
+
+	/* Merging can't happen with unchanged classes.. */
+	if (DEBUG_LOCKS_WARN_ON(merged))
 		return 0;
 
 	/*
@@ -3932,6 +3947,7 @@ static int __lock_downgrade(struct lockd
 	 */
 	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth))
 		return 0;
+
 	return 1;
 }
 
@@ -3946,8 +3962,8 @@ static int
 __lock_release(struct lockdep_map *lock, int nested, unsigned long ip)
 {
 	struct task_struct *curr = current;
+	unsigned int depth, merged = 1;
 	struct held_lock *hlock;
-	unsigned int depth;
 	int i;
 
 	if (unlikely(!debug_locks))
@@ -4002,14 +4018,15 @@ __lock_release(struct lockdep_map *lock,
 	if (i == depth-1)
 		return 1;
 
-	if (reacquire_held_locks(curr, depth, i + 1))
+	if (reacquire_held_locks(curr, depth, i + 1, &merged))
 		return 0;
 
 	/*
 	 * We had N bottles of beer on the wall, we drank one, but now
 	 * there's not N-1 bottles of beer left on the wall...
+	 * Pouring two of the bottles together is acceptable.
 	 */
-	DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth-1);
+	DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - merged);
 
 	/*
 	 * Since reacquire_held_locks() would have called check_chain_key()
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/locking/rwsem-xadd.c linux-libre-5.1.21-gnu/kernel/locking/rwsem-xadd.c
--- linux-libre-5.1-gnu/kernel/locking/rwsem-xadd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/locking/rwsem-xadd.c	2019-07-28 02:28:39.000000000 -0400
@@ -130,6 +130,7 @@ static void __rwsem_mark_wake(struct rw_
 {
 	struct rwsem_waiter *waiter, *tmp;
 	long oldcount, woken = 0, adjustment = 0;
+	struct list_head wlist;
 
 	/*
 	 * Take a peek at the queue head waiter such that we can determine
@@ -188,18 +189,42 @@ static void __rwsem_mark_wake(struct rw_
 	 * of the queue. We know that woken will be at least 1 as we accounted
 	 * for above. Note we increment the 'active part' of the count by the
 	 * number of readers before waking any processes up.
+	 *
+	 * We have to do wakeup in 2 passes to prevent the possibility that
+	 * the reader count may be decremented before it is incremented. It
+	 * is because the to-be-woken waiter may not have slept yet. So it
+	 * may see waiter->task got cleared, finish its critical section and
+	 * do an unlock before the reader count increment.
+	 *
+	 * 1) Collect the read-waiters in a separate list, count them and
+	 *    fully increment the reader count in rwsem.
+	 * 2) For each waiters in the new list, clear waiter->task and
+	 *    put them into wake_q to be woken up later.
 	 */
-	list_for_each_entry_safe(waiter, tmp, &sem->wait_list, list) {
-		struct task_struct *tsk;
-
+	list_for_each_entry(waiter, &sem->wait_list, list) {
 		if (waiter->type == RWSEM_WAITING_FOR_WRITE)
 			break;
 
 		woken++;
-		tsk = waiter->task;
+	}
+	list_cut_before(&wlist, &sem->wait_list, &waiter->list);
+
+	adjustment = woken * RWSEM_ACTIVE_READ_BIAS - adjustment;
+	if (list_empty(&sem->wait_list)) {
+		/* hit end of list above */
+		adjustment -= RWSEM_WAITING_BIAS;
+	}
+
+	if (adjustment)
+		atomic_long_add(adjustment, &sem->count);
 
+	/* 2nd pass */
+	list_for_each_entry_safe(waiter, tmp, &wlist, list) {
+		struct task_struct *tsk;
+
+		tsk = waiter->task;
 		get_task_struct(tsk);
-		list_del(&waiter->list);
+
 		/*
 		 * Ensure calling get_task_struct() before setting the reader
 		 * waiter to nil such that rwsem_down_read_failed() cannot
@@ -213,15 +238,6 @@ static void __rwsem_mark_wake(struct rw_
 		 */
 		wake_q_add_safe(wake_q, tsk);
 	}
-
-	adjustment = woken * RWSEM_ACTIVE_READ_BIAS - adjustment;
-	if (list_empty(&sem->wait_list)) {
-		/* hit end of list above */
-		adjustment -= RWSEM_WAITING_BIAS;
-	}
-
-	if (adjustment)
-		atomic_long_add(adjustment, &sem->count);
 }
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/Makefile linux-libre-5.1.21-gnu/kernel/Makefile
--- linux-libre-5.1-gnu/kernel/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -30,6 +30,7 @@ KCOV_INSTRUMENT_extable.o := n
 # Don't self-instrument.
 KCOV_INSTRUMENT_kcov.o := n
 KASAN_SANITIZE_kcov.o := n
+CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
 
 # cond_syscall is currently not LTO compatible
 CFLAGS_sys_ni.o = $(DISABLE_LTO)
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/module.c linux-libre-5.1.21-gnu/kernel/module.c
--- linux-libre-5.1-gnu/kernel/module.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/module.c	2019-07-28 02:28:39.000000000 -0400
@@ -1950,8 +1950,13 @@ void module_enable_ro(const struct modul
 		return;
 
 	frob_text(&mod->core_layout, set_memory_ro);
+	frob_text(&mod->core_layout, set_memory_x);
+
 	frob_rodata(&mod->core_layout, set_memory_ro);
+
 	frob_text(&mod->init_layout, set_memory_ro);
+	frob_text(&mod->init_layout, set_memory_x);
+
 	frob_rodata(&mod->init_layout, set_memory_ro);
 
 	if (after_init)
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/padata.c linux-libre-5.1.21-gnu/kernel/padata.c
--- linux-libre-5.1-gnu/kernel/padata.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/padata.c	2019-07-28 02:28:39.000000000 -0400
@@ -267,7 +267,12 @@ static void padata_reorder(struct parall
 	 * The next object that needs serialization might have arrived to
 	 * the reorder queues in the meantime, we will be called again
 	 * from the timer function if no one else cares for it.
+	 *
+	 * Ensure reorder_objects is read after pd->lock is dropped so we see
+	 * an increment from another task in padata_do_serial.  Pairs with
+	 * smp_mb__after_atomic in padata_do_serial.
 	 */
+	smp_mb();
 	if (atomic_read(&pd->reorder_objects)
 			&& !(pinst->flags & PADATA_RESET))
 		mod_timer(&pd->timer, jiffies + HZ);
@@ -387,6 +392,13 @@ void padata_do_serial(struct padata_priv
 	list_add_tail(&padata->list, &pqueue->reorder.list);
 	spin_unlock(&pqueue->reorder.lock);
 
+	/*
+	 * Ensure the atomic_inc of reorder_objects above is ordered correctly
+	 * with the trylock of pd->lock in padata_reorder.  Pairs with smp_mb
+	 * in padata_reorder.
+	 */
+	smp_mb__after_atomic();
+
 	put_cpu();
 
 	/* If we're running on the wrong CPU, call padata_reorder() via a
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/pid_namespace.c linux-libre-5.1.21-gnu/kernel/pid_namespace.c
--- linux-libre-5.1-gnu/kernel/pid_namespace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/pid_namespace.c	2019-07-28 02:28:39.000000000 -0400
@@ -325,7 +325,7 @@ int reboot_pid_ns(struct pid_namespace *
 	}
 
 	read_lock(&tasklist_lock);
-	force_sig(SIGKILL, pid_ns->child_reaper);
+	send_sig(SIGKILL, pid_ns->child_reaper, 1);
 	read_unlock(&tasklist_lock);
 
 	do_exit(0);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/power/hibernate.c linux-libre-5.1.21-gnu/kernel/power/hibernate.c
--- linux-libre-5.1-gnu/kernel/power/hibernate.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/power/hibernate.c	2019-07-28 02:28:39.000000000 -0400
@@ -258,6 +258,11 @@ void swsusp_show_speed(ktime_t start, kt
 		(kps % 1000) / 10);
 }
 
+__weak int arch_resume_nosmt(void)
+{
+	return 0;
+}
+
 /**
  * create_image - Create a hibernation image.
  * @platform_mode: Whether or not to use the platform driver.
@@ -325,6 +330,10 @@ static int create_image(int platform_mod
  Enable_cpus:
 	enable_nonboot_cpus();
 
+	/* Allow architectures to do nosmt-specific post-resume dances */
+	if (!in_suspend)
+		error = arch_resume_nosmt();
+
  Platform_finish:
 	platform_finish(platform_mode);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/ptrace.c linux-libre-5.1.21-gnu/kernel/ptrace.c
--- linux-libre-5.1-gnu/kernel/ptrace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/ptrace.c	2019-07-28 02:28:39.000000000 -0400
@@ -78,9 +78,7 @@ void __ptrace_link(struct task_struct *c
  */
 static void ptrace_link(struct task_struct *child, struct task_struct *new_parent)
 {
-	rcu_read_lock();
-	__ptrace_link(child, new_parent, __task_cred(new_parent));
-	rcu_read_unlock();
+	__ptrace_link(child, new_parent, current_cred());
 }
 
 /**
@@ -323,6 +321,16 @@ static int __ptrace_may_access(struct ta
 	return -EPERM;
 ok:
 	rcu_read_unlock();
+	/*
+	 * If a task drops privileges and becomes nondumpable (through a syscall
+	 * like setresuid()) while we are trying to access it, we must ensure
+	 * that the dumpability is read after the credentials; otherwise,
+	 * we may be able to attach to a task that we shouldn't be able to
+	 * attach to (as if the task had dropped privileges without becoming
+	 * nondumpable).
+	 * Pairs with a write barrier in commit_creds().
+	 */
+	smp_rmb();
 	mm = task->mm;
 	if (mm &&
 	    ((get_dumpable(mm) != SUID_DUMP_USER) &&
@@ -704,6 +712,10 @@ static int ptrace_peek_siginfo(struct ta
 	if (arg.nr < 0)
 		return -EINVAL;
 
+	/* Ensure arg.off fits in an unsigned long */
+	if (arg.off > ULONG_MAX)
+		return 0;
+
 	if (arg.flags & PTRACE_PEEKSIGINFO_SHARED)
 		pending = &child->signal->shared_pending;
 	else
@@ -711,18 +723,20 @@ static int ptrace_peek_siginfo(struct ta
 
 	for (i = 0; i < arg.nr; ) {
 		kernel_siginfo_t info;
-		s32 off = arg.off + i;
+		unsigned long off = arg.off + i;
+		bool found = false;
 
 		spin_lock_irq(&child->sighand->siglock);
 		list_for_each_entry(q, &pending->list, list) {
 			if (!off--) {
+				found = true;
 				copy_siginfo(&info, &q->info);
 				break;
 			}
 		}
 		spin_unlock_irq(&child->sighand->siglock);
 
-		if (off >= 0) /* beyond the end of the list */
+		if (!found) /* beyond the end of the list */
 			break;
 
 #ifdef CONFIG_COMPAT
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/rcu/rcuperf.c linux-libre-5.1.21-gnu/kernel/rcu/rcuperf.c
--- linux-libre-5.1-gnu/kernel/rcu/rcuperf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/rcu/rcuperf.c	2019-07-28 02:28:39.000000000 -0400
@@ -494,6 +494,10 @@ rcu_perf_cleanup(void)
 
 	if (torture_cleanup_begin())
 		return;
+	if (!cur_ops) {
+		torture_cleanup_end();
+		return;
+	}
 
 	if (reader_tasks) {
 		for (i = 0; i < nrealreaders; i++)
@@ -614,6 +618,7 @@ rcu_perf_init(void)
 		pr_cont("\n");
 		WARN_ON(!IS_MODULE(CONFIG_RCU_PERF_TEST));
 		firsterr = -EINVAL;
+		cur_ops = NULL;
 		goto unwind;
 	}
 	if (cur_ops->init)
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/rcu/rcutorture.c linux-libre-5.1.21-gnu/kernel/rcu/rcutorture.c
--- linux-libre-5.1-gnu/kernel/rcu/rcutorture.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/rcu/rcutorture.c	2019-07-28 02:28:39.000000000 -0400
@@ -2094,6 +2094,10 @@ rcu_torture_cleanup(void)
 			cur_ops->cb_barrier();
 		return;
 	}
+	if (!cur_ops) {
+		torture_cleanup_end();
+		return;
+	}
 
 	rcu_torture_barrier_cleanup();
 	torture_stop_kthread(rcu_torture_fwd_prog, fwd_prog_task);
@@ -2267,6 +2271,7 @@ rcu_torture_init(void)
 		pr_cont("\n");
 		WARN_ON(!IS_MODULE(CONFIG_RCU_TORTURE_TEST));
 		firsterr = -EINVAL;
+		cur_ops = NULL;
 		goto unwind;
 	}
 	if (cur_ops->fqs == NULL && fqs_duration != 0) {
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/resource.c linux-libre-5.1.21-gnu/kernel/resource.c
--- linux-libre-5.1-gnu/kernel/resource.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/resource.c	2019-07-28 02:28:39.000000000 -0400
@@ -325,7 +325,7 @@ EXPORT_SYMBOL(release_resource);
  *
  * If a resource is found, returns 0 and @*res is overwritten with the part
  * of the resource that's within [@start..@end]; if none is found, returns
- * -1 or -EINVAL for other invalid parameters.
+ * -ENODEV.  Returns -EINVAL for invalid parameters.
  *
  * This function walks the whole tree and not just first level children
  * unless @first_lvl is true.
@@ -364,16 +364,16 @@ static int find_next_iomem_res(resource_
 			break;
 	}
 
-	read_unlock(&resource_lock);
-	if (!p)
-		return -1;
+	if (p) {
+		/* copy data */
+		res->start = max(start, p->start);
+		res->end = min(end, p->end);
+		res->flags = p->flags;
+		res->desc = p->desc;
+	}
 
-	/* copy data */
-	res->start = max(start, p->start);
-	res->end = min(end, p->end);
-	res->flags = p->flags;
-	res->desc = p->desc;
-	return 0;
+	read_unlock(&resource_lock);
+	return p ? 0 : -ENODEV;
 }
 
 static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end,
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/sched/core.c linux-libre-5.1.21-gnu/kernel/sched/core.c
--- linux-libre-5.1-gnu/kernel/sched/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/sched/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -5175,7 +5175,7 @@ long __sched io_schedule_timeout(long ti
 }
 EXPORT_SYMBOL(io_schedule_timeout);
 
-void io_schedule(void)
+void __sched io_schedule(void)
 {
 	int token;
 
@@ -6559,6 +6559,8 @@ static void cpu_cgroup_attach(struct cgr
 static int cpu_shares_write_u64(struct cgroup_subsys_state *css,
 				struct cftype *cftype, u64 shareval)
 {
+	if (shareval > scale_load_down(ULONG_MAX))
+		shareval = MAX_SHARES;
 	return sched_group_set_shares(css_tg(css), scale_load(shareval));
 }
 
@@ -6661,8 +6663,10 @@ int tg_set_cfs_quota(struct task_group *
 	period = ktime_to_ns(tg->cfs_bandwidth.period);
 	if (cfs_quota_us < 0)
 		quota = RUNTIME_INF;
-	else
+	else if ((u64)cfs_quota_us <= U64_MAX / NSEC_PER_USEC)
 		quota = (u64)cfs_quota_us * NSEC_PER_USEC;
+	else
+		return -EINVAL;
 
 	return tg_set_cfs_bandwidth(tg, period, quota);
 }
@@ -6684,6 +6688,9 @@ int tg_set_cfs_period(struct task_group
 {
 	u64 quota, period;
 
+	if ((u64)cfs_period_us > U64_MAX / NSEC_PER_USEC)
+		return -EINVAL;
+
 	period = (u64)cfs_period_us * NSEC_PER_USEC;
 	quota = tg->cfs_bandwidth.quota;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/sched/fair.c linux-libre-5.1.21-gnu/kernel/sched/fair.c
--- linux-libre-5.1-gnu/kernel/sched/fair.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/sched/fair.c	2019-07-28 02:28:39.000000000 -0400
@@ -9551,22 +9551,26 @@ static inline int on_null_domain(struct
  * - When one of the busy CPUs notice that there may be an idle rebalancing
  *   needed, they will kick the idle load balancer, which then does idle
  *   load balancing for all the idle CPUs.
+ * - HK_FLAG_MISC CPUs are used for this task, because HK_FLAG_SCHED not set
+ *   anywhere yet.
  */
 
 static inline int find_new_ilb(void)
 {
-	int ilb = cpumask_first(nohz.idle_cpus_mask);
+	int ilb;
 
-	if (ilb < nr_cpu_ids && idle_cpu(ilb))
-		return ilb;
+	for_each_cpu_and(ilb, nohz.idle_cpus_mask,
+			      housekeeping_cpumask(HK_FLAG_MISC)) {
+		if (idle_cpu(ilb))
+			return ilb;
+	}
 
 	return nr_cpu_ids;
 }
 
 /*
- * Kick a CPU to do the nohz balancing, if it is time for it. We pick the
- * nohz_load_balancer CPU (if there is one) otherwise fallback to any idle
- * CPU (if there is one).
+ * Kick a CPU to do the nohz balancing, if it is time for it. We pick any
+ * idle CPU in the HK_FLAG_MISC housekeeping set (if there is one).
  */
 static void kick_ilb(unsigned int flags)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/sched/rt.c linux-libre-5.1.21-gnu/kernel/sched/rt.c
--- linux-libre-5.1-gnu/kernel/sched/rt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/sched/rt.c	2019-07-28 02:28:39.000000000 -0400
@@ -2555,6 +2555,8 @@ int sched_group_set_rt_runtime(struct ta
 	rt_runtime = (u64)rt_runtime_us * NSEC_PER_USEC;
 	if (rt_runtime_us < 0)
 		rt_runtime = RUNTIME_INF;
+	else if ((u64)rt_runtime_us > U64_MAX / NSEC_PER_USEC)
+		return -EINVAL;
 
 	return tg_set_rt_bandwidth(tg, rt_period, rt_runtime);
 }
@@ -2575,6 +2577,9 @@ int sched_group_set_rt_period(struct tas
 {
 	u64 rt_runtime, rt_period;
 
+	if (rt_period_us > U64_MAX / NSEC_PER_USEC)
+		return -EINVAL;
+
 	rt_period = rt_period_us * NSEC_PER_USEC;
 	rt_runtime = tg->rt_bandwidth.rt_runtime;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/sched/sched-pelt.h linux-libre-5.1.21-gnu/kernel/sched/sched-pelt.h
--- linux-libre-5.1-gnu/kernel/sched/sched-pelt.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/sched/sched-pelt.h	2019-07-28 02:28:39.000000000 -0400
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /* Generated by Documentation/scheduler/sched-pelt; do not modify. */
 
-static const u32 runnable_avg_yN_inv[] = {
+static const u32 runnable_avg_yN_inv[] __maybe_unused = {
 	0xffffffff, 0xfa83b2da, 0xf5257d14, 0xefe4b99a, 0xeac0c6e6, 0xe5b906e6,
 	0xe0ccdeeb, 0xdbfbb796, 0xd744fcc9, 0xd2a81d91, 0xce248c14, 0xc9b9bd85,
 	0xc5672a10, 0xc12c4cc9, 0xbd08a39e, 0xb8fbaf46, 0xb504f333, 0xb123f581,
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/signal.c linux-libre-5.1.21-gnu/kernel/signal.c
--- linux-libre-5.1-gnu/kernel/signal.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/signal.c	2019-07-28 02:28:39.000000000 -0400
@@ -1053,27 +1053,6 @@ static inline bool legacy_queue(struct s
 	return (sig < SIGRTMIN) && sigismember(&signals->signal, sig);
 }
 
-#ifdef CONFIG_USER_NS
-static inline void userns_fixup_signal_uid(struct kernel_siginfo *info, struct task_struct *t)
-{
-	if (current_user_ns() == task_cred_xxx(t, user_ns))
-		return;
-
-	if (SI_FROMKERNEL(info))
-		return;
-
-	rcu_read_lock();
-	info->si_uid = from_kuid_munged(task_cred_xxx(t, user_ns),
-					make_kuid(current_user_ns(), info->si_uid));
-	rcu_read_unlock();
-}
-#else
-static inline void userns_fixup_signal_uid(struct kernel_siginfo *info, struct task_struct *t)
-{
-	return;
-}
-#endif
-
 static int __send_signal(int sig, struct kernel_siginfo *info, struct task_struct *t,
 			enum pid_type type, int from_ancestor_ns)
 {
@@ -1131,7 +1110,11 @@ static int __send_signal(int sig, struct
 			q->info.si_code = SI_USER;
 			q->info.si_pid = task_tgid_nr_ns(current,
 							task_active_pid_ns(t));
-			q->info.si_uid = from_kuid_munged(current_user_ns(), current_uid());
+			rcu_read_lock();
+			q->info.si_uid =
+				from_kuid_munged(task_cred_xxx(t, user_ns),
+						 current_uid());
+			rcu_read_unlock();
 			break;
 		case (unsigned long) SEND_SIG_PRIV:
 			clear_siginfo(&q->info);
@@ -1143,13 +1126,8 @@ static int __send_signal(int sig, struct
 			break;
 		default:
 			copy_siginfo(&q->info, info);
-			if (from_ancestor_ns)
-				q->info.si_pid = 0;
 			break;
 		}
-
-		userns_fixup_signal_uid(&q->info, t);
-
 	} else if (!is_si_special(info)) {
 		if (sig >= SIGRTMIN && info->si_code != SI_USER) {
 			/*
@@ -1193,6 +1171,28 @@ ret:
 	return ret;
 }
 
+static inline bool has_si_pid_and_uid(struct kernel_siginfo *info)
+{
+	bool ret = false;
+	switch (siginfo_layout(info->si_signo, info->si_code)) {
+	case SIL_KILL:
+	case SIL_CHLD:
+	case SIL_RT:
+		ret = true;
+		break;
+	case SIL_TIMER:
+	case SIL_POLL:
+	case SIL_FAULT:
+	case SIL_FAULT_MCEERR:
+	case SIL_FAULT_BNDERR:
+	case SIL_FAULT_PKUERR:
+	case SIL_SYS:
+		ret = false;
+		break;
+	}
+	return ret;
+}
+
 static int send_signal(int sig, struct kernel_siginfo *info, struct task_struct *t,
 			enum pid_type type)
 {
@@ -1202,7 +1202,20 @@ static int send_signal(int sig, struct k
 	from_ancestor_ns = si_fromuser(info) &&
 			   !task_pid_nr_ns(current, task_active_pid_ns(t));
 #endif
+	if (!is_si_special(info) && has_si_pid_and_uid(info)) {
+		struct user_namespace *t_user_ns;
+
+		rcu_read_lock();
+		t_user_ns = task_cred_xxx(t, user_ns);
+		if (current_user_ns() != t_user_ns) {
+			kuid_t uid = make_kuid(current_user_ns(), info->si_uid);
+			info->si_uid = from_kuid_munged(t_user_ns, uid);
+		}
+		rcu_read_unlock();
 
+		if (!task_pid_nr_ns(current, task_active_pid_ns(t)))
+			info->si_pid = 0;
+	}
 	return __send_signal(sig, info, t, type, from_ancestor_ns);
 }
 
@@ -1436,13 +1449,44 @@ static inline bool kill_as_cred_perm(con
 	       uid_eq(cred->uid, pcred->uid);
 }
 
-/* like kill_pid_info(), but doesn't use uid/euid of "current" */
-int kill_pid_info_as_cred(int sig, struct kernel_siginfo *info, struct pid *pid,
-			 const struct cred *cred)
+/*
+ * The usb asyncio usage of siginfo is wrong.  The glibc support
+ * for asyncio which uses SI_ASYNCIO assumes the layout is SIL_RT.
+ * AKA after the generic fields:
+ *	kernel_pid_t	si_pid;
+ *	kernel_uid32_t	si_uid;
+ *	sigval_t	si_value;
+ *
+ * Unfortunately when usb generates SI_ASYNCIO it assumes the layout
+ * after the generic fields is:
+ *	void __user 	*si_addr;
+ *
+ * This is a practical problem when there is a 64bit big endian kernel
+ * and a 32bit userspace.  As the 32bit address will encoded in the low
+ * 32bits of the pointer.  Those low 32bits will be stored at higher
+ * address than appear in a 32 bit pointer.  So userspace will not
+ * see the address it was expecting for it's completions.
+ *
+ * There is nothing in the encoding that can allow
+ * copy_siginfo_to_user32 to detect this confusion of formats, so
+ * handle this by requiring the caller of kill_pid_usb_asyncio to
+ * notice when this situration takes place and to store the 32bit
+ * pointer in sival_int, instead of sival_addr of the sigval_t addr
+ * parameter.
+ */
+int kill_pid_usb_asyncio(int sig, int errno, sigval_t addr,
+			 struct pid *pid, const struct cred *cred)
 {
-	int ret = -EINVAL;
+	struct kernel_siginfo info;
 	struct task_struct *p;
 	unsigned long flags;
+	int ret = -EINVAL;
+
+	clear_siginfo(&info);
+	info.si_signo = sig;
+	info.si_errno = errno;
+	info.si_code = SI_ASYNCIO;
+	*((sigval_t *)&info.si_pid) = addr;
 
 	if (!valid_signal(sig))
 		return ret;
@@ -1453,17 +1497,17 @@ int kill_pid_info_as_cred(int sig, struc
 		ret = -ESRCH;
 		goto out_unlock;
 	}
-	if (si_fromuser(info) && !kill_as_cred_perm(cred, p)) {
+	if (!kill_as_cred_perm(cred, p)) {
 		ret = -EPERM;
 		goto out_unlock;
 	}
-	ret = security_task_kill(p, info, sig, cred);
+	ret = security_task_kill(p, &info, sig, cred);
 	if (ret)
 		goto out_unlock;
 
 	if (sig) {
 		if (lock_task_sighand(p, &flags)) {
-			ret = __send_signal(sig, info, p, PIDTYPE_TGID, 0);
+			ret = __send_signal(sig, &info, p, PIDTYPE_TGID, 0);
 			unlock_task_sighand(p, &flags);
 		} else
 			ret = -ESRCH;
@@ -1472,7 +1516,7 @@ out_unlock:
 	rcu_read_unlock();
 	return ret;
 }
-EXPORT_SYMBOL_GPL(kill_pid_info_as_cred);
+EXPORT_SYMBOL_GPL(kill_pid_usb_asyncio);
 
 /*
  * kill_something_info() interprets pid in interesting ways just like kill(2).
@@ -2441,6 +2485,8 @@ relock:
 	if (signal_group_exit(signal)) {
 		ksig->info.si_signo = signr = SIGKILL;
 		sigdelset(&current->pending.signal, SIGKILL);
+		trace_signal_deliver(SIGKILL, SEND_SIG_NOINFO,
+				&sighand->action[SIGKILL - 1]);
 		recalc_sigpending();
 		goto fatal;
 	}
@@ -2849,7 +2895,8 @@ EXPORT_SYMBOL(set_compat_user_sigmask);
  * This is useful for syscalls such as ppoll, pselect, io_pgetevents and
  * epoll_pwait where a new sigmask is passed in from userland for the syscalls.
  */
-void restore_user_sigmask(const void __user *usigmask, sigset_t *sigsaved)
+void restore_user_sigmask(const void __user *usigmask, sigset_t *sigsaved,
+				bool interrupted)
 {
 
 	if (!usigmask)
@@ -2859,7 +2906,7 @@ void restore_user_sigmask(const void __u
 	 * Restoring sigmask here can lead to delivering signals that the above
 	 * syscalls are intended to block because of the sigmask passed in.
 	 */
-	if (signal_pending(current)) {
+	if (interrupted) {
 		current->saved_sigmask = *sigsaved;
 		set_restore_sigmask();
 		return;
@@ -4408,6 +4455,28 @@ static inline void siginfo_buildtime_che
 	CHECK_OFFSET(si_syscall);
 	CHECK_OFFSET(si_arch);
 #undef CHECK_OFFSET
+
+	/* usb asyncio */
+	BUILD_BUG_ON(offsetof(struct siginfo, si_pid) !=
+		     offsetof(struct siginfo, si_addr));
+	if (sizeof(int) == sizeof(void __user *)) {
+		BUILD_BUG_ON(sizeof_field(struct siginfo, si_pid) !=
+			     sizeof(void __user *));
+	} else {
+		BUILD_BUG_ON((sizeof_field(struct siginfo, si_pid) +
+			      sizeof_field(struct siginfo, si_uid)) !=
+			     sizeof(void __user *));
+		BUILD_BUG_ON(offsetofend(struct siginfo, si_pid) !=
+			     offsetof(struct siginfo, si_uid));
+	}
+#ifdef CONFIG_COMPAT
+	BUILD_BUG_ON(offsetof(struct compat_siginfo, si_pid) !=
+		     offsetof(struct compat_siginfo, si_addr));
+	BUILD_BUG_ON(sizeof_field(struct compat_siginfo, si_pid) !=
+		     sizeof(compat_uptr_t));
+	BUILD_BUG_ON(sizeof_field(struct compat_siginfo, si_pid) !=
+		     sizeof_field(struct siginfo, si_pid));
+#endif
 }
 
 void __init signals_init(void)
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/sys.c linux-libre-5.1.21-gnu/kernel/sys.c
--- linux-libre-5.1-gnu/kernel/sys.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/sys.c	2019-07-28 02:28:39.000000000 -0400
@@ -1924,7 +1924,7 @@ static int validate_prctl_map(struct prc
 	((unsigned long)prctl_map->__m1 __op				\
 	 (unsigned long)prctl_map->__m2) ? 0 : -EINVAL
 	error  = __prctl_check_order(start_code, <, end_code);
-	error |= __prctl_check_order(start_data, <, end_data);
+	error |= __prctl_check_order(start_data,<=, end_data);
 	error |= __prctl_check_order(start_brk, <=, brk);
 	error |= __prctl_check_order(arg_start, <=, arg_end);
 	error |= __prctl_check_order(env_start, <=, env_end);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/sysctl.c linux-libre-5.1.21-gnu/kernel/sysctl.c
--- linux-libre-5.1-gnu/kernel/sysctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/sysctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -2874,8 +2874,10 @@ static int __do_proc_doulongvec_minmax(v
 			if (neg)
 				continue;
 			val = convmul * val / convdiv;
-			if ((min && val < *min) || (max && val > *max))
-				continue;
+			if ((min && val < *min) || (max && val > *max)) {
+				err = -EINVAL;
+				break;
+			}
 			*i = val;
 		} else {
 			val = convdiv * (*i) / convmul;
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/time/ntp.c linux-libre-5.1.21-gnu/kernel/time/ntp.c
--- linux-libre-5.1-gnu/kernel/time/ntp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/time/ntp.c	2019-07-28 02:28:39.000000000 -0400
@@ -42,6 +42,7 @@ static u64			tick_length_base;
 #define MAX_TICKADJ		500LL		/* usecs */
 #define MAX_TICKADJ_SCALED \
 	(((MAX_TICKADJ * NSEC_PER_USEC) << NTP_SCALE_SHIFT) / NTP_INTERVAL_FREQ)
+#define MAX_TAI_OFFSET		100000
 
 /*
  * phase-lock loop variables
@@ -690,7 +691,8 @@ static inline void process_adjtimex_mode
 		time_constant = max(time_constant, 0l);
 	}
 
-	if (txc->modes & ADJ_TAI && txc->constant > 0)
+	if (txc->modes & ADJ_TAI &&
+			txc->constant >= 0 && txc->constant <= MAX_TAI_OFFSET)
 		*time_tai = txc->constant;
 
 	if (txc->modes & ADJ_OFFSET)
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/time/time.c linux-libre-5.1.21-gnu/kernel/time/time.c
--- linux-libre-5.1-gnu/kernel/time/time.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/time/time.c	2019-07-28 02:28:39.000000000 -0400
@@ -171,7 +171,7 @@ int do_sys_settimeofday64(const struct t
 	static int firsttime = 1;
 	int error = 0;
 
-	if (tv && !timespec64_valid(tv))
+	if (tv && !timespec64_valid_settod(tv))
 		return -EINVAL;
 
 	error = security_settime64(tv, tz);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/time/timekeeping.c linux-libre-5.1.21-gnu/kernel/time/timekeeping.c
--- linux-libre-5.1-gnu/kernel/time/timekeeping.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/time/timekeeping.c	2019-07-28 02:28:39.000000000 -0400
@@ -807,17 +807,18 @@ ktime_t ktime_get_coarse_with_offset(enu
 	struct timekeeper *tk = &tk_core.timekeeper;
 	unsigned int seq;
 	ktime_t base, *offset = offsets[offs];
+	u64 nsecs;
 
 	WARN_ON(timekeeping_suspended);
 
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
 		base = ktime_add(tk->tkr_mono.base, *offset);
+		nsecs = tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift;
 
 	} while (read_seqcount_retry(&tk_core.seq, seq));
 
-	return base;
-
+	return base + nsecs;
 }
 EXPORT_SYMBOL_GPL(ktime_get_coarse_with_offset);
 
@@ -1221,7 +1222,7 @@ int do_settimeofday64(const struct times
 	unsigned long flags;
 	int ret = 0;
 
-	if (!timespec64_valid_strict(ts))
+	if (!timespec64_valid_settod(ts))
 		return -EINVAL;
 
 	raw_spin_lock_irqsave(&timekeeper_lock, flags);
@@ -1278,7 +1279,7 @@ static int timekeeping_inject_offset(con
 	/* Make sure the proposed value is valid */
 	tmp = timespec64_add(tk_xtime(tk), *ts);
 	if (timespec64_compare(&tk->wall_to_monotonic, ts) > 0 ||
-	    !timespec64_valid_strict(&tmp)) {
+	    !timespec64_valid_settod(&tmp)) {
 		ret = -EINVAL;
 		goto error;
 	}
@@ -1527,7 +1528,7 @@ void __init timekeeping_init(void)
 	unsigned long flags;
 
 	read_persistent_wall_and_boot_offset(&wall_time, &boot_offset);
-	if (timespec64_valid_strict(&wall_time) &&
+	if (timespec64_valid_settod(&wall_time) &&
 	    timespec64_to_ns(&wall_time) > 0) {
 		persistent_clock_exists = true;
 	} else if (timespec64_to_ns(&wall_time) != 0) {
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/time/timer_list.c linux-libre-5.1.21-gnu/kernel/time/timer_list.c
--- linux-libre-5.1-gnu/kernel/time/timer_list.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/time/timer_list.c	2019-07-28 02:28:39.000000000 -0400
@@ -282,23 +282,6 @@ static inline void timer_list_header(str
 	SEQ_printf(m, "\n");
 }
 
-static int timer_list_show(struct seq_file *m, void *v)
-{
-	struct timer_list_iter *iter = v;
-
-	if (iter->cpu == -1 && !iter->second_pass)
-		timer_list_header(m, iter->now);
-	else if (!iter->second_pass)
-		print_cpu(m, iter->cpu, iter->now);
-#ifdef CONFIG_GENERIC_CLOCKEVENTS
-	else if (iter->cpu == -1 && iter->second_pass)
-		timer_list_show_tickdevices_header(m);
-	else
-		print_tickdevice(m, tick_get_device(iter->cpu), iter->cpu);
-#endif
-	return 0;
-}
-
 void sysrq_timer_list_show(void)
 {
 	u64 now = ktime_to_ns(ktime_get());
@@ -317,6 +300,24 @@ void sysrq_timer_list_show(void)
 	return;
 }
 
+#ifdef CONFIG_PROC_FS
+static int timer_list_show(struct seq_file *m, void *v)
+{
+	struct timer_list_iter *iter = v;
+
+	if (iter->cpu == -1 && !iter->second_pass)
+		timer_list_header(m, iter->now);
+	else if (!iter->second_pass)
+		print_cpu(m, iter->cpu, iter->now);
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
+	else if (iter->cpu == -1 && iter->second_pass)
+		timer_list_show_tickdevices_header(m);
+	else
+		print_tickdevice(m, tick_get_device(iter->cpu), iter->cpu);
+#endif
+	return 0;
+}
+
 static void *move_iter(struct timer_list_iter *iter, loff_t offset)
 {
 	for (; offset; offset--) {
@@ -376,3 +377,4 @@ static int __init init_timer_list_procfs
 	return 0;
 }
 __initcall(init_timer_list_procfs);
+#endif
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/bpf_trace.c linux-libre-5.1.21-gnu/kernel/trace/bpf_trace.c
--- linux-libre-5.1-gnu/kernel/trace/bpf_trace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/bpf_trace.c	2019-07-28 02:28:39.000000000 -0400
@@ -402,8 +402,6 @@ static const struct bpf_func_proto bpf_p
 	.arg4_type	= ARG_CONST_SIZE,
 };
 
-static DEFINE_PER_CPU(struct perf_sample_data, bpf_trace_sd);
-
 static __always_inline u64
 __bpf_perf_event_output(struct pt_regs *regs, struct bpf_map *map,
 			u64 flags, struct perf_sample_data *sd)
@@ -434,24 +432,50 @@ __bpf_perf_event_output(struct pt_regs *
 	return perf_event_output(event, sd, regs);
 }
 
+/*
+ * Support executing tracepoints in normal, irq, and nmi context that each call
+ * bpf_perf_event_output
+ */
+struct bpf_trace_sample_data {
+	struct perf_sample_data sds[3];
+};
+
+static DEFINE_PER_CPU(struct bpf_trace_sample_data, bpf_trace_sds);
+static DEFINE_PER_CPU(int, bpf_trace_nest_level);
 BPF_CALL_5(bpf_perf_event_output, struct pt_regs *, regs, struct bpf_map *, map,
 	   u64, flags, void *, data, u64, size)
 {
-	struct perf_sample_data *sd = this_cpu_ptr(&bpf_trace_sd);
+	struct bpf_trace_sample_data *sds = this_cpu_ptr(&bpf_trace_sds);
+	int nest_level = this_cpu_inc_return(bpf_trace_nest_level);
 	struct perf_raw_record raw = {
 		.frag = {
 			.size = size,
 			.data = data,
 		},
 	};
+	struct perf_sample_data *sd;
+	int err;
 
-	if (unlikely(flags & ~(BPF_F_INDEX_MASK)))
-		return -EINVAL;
+	if (WARN_ON_ONCE(nest_level > ARRAY_SIZE(sds->sds))) {
+		err = -EBUSY;
+		goto out;
+	}
+
+	sd = &sds->sds[nest_level - 1];
+
+	if (unlikely(flags & ~(BPF_F_INDEX_MASK))) {
+		err = -EINVAL;
+		goto out;
+	}
 
 	perf_sample_data_init(sd, 0, 0);
 	sd->raw = &raw;
 
-	return __bpf_perf_event_output(regs, map, flags, sd);
+	err = __bpf_perf_event_output(regs, map, flags, sd);
+
+out:
+	this_cpu_dec(bpf_trace_nest_level);
+	return err;
 }
 
 static const struct bpf_func_proto bpf_perf_event_output_proto = {
@@ -808,16 +832,48 @@ pe_prog_func_proto(enum bpf_func_id func
 /*
  * bpf_raw_tp_regs are separate from bpf_pt_regs used from skb/xdp
  * to avoid potential recursive reuse issue when/if tracepoints are added
- * inside bpf_*_event_output, bpf_get_stackid and/or bpf_get_stack
+ * inside bpf_*_event_output, bpf_get_stackid and/or bpf_get_stack.
+ *
+ * Since raw tracepoints run despite bpf_prog_active, support concurrent usage
+ * in normal, irq, and nmi context.
  */
-static DEFINE_PER_CPU(struct pt_regs, bpf_raw_tp_regs);
+struct bpf_raw_tp_regs {
+	struct pt_regs regs[3];
+};
+static DEFINE_PER_CPU(struct bpf_raw_tp_regs, bpf_raw_tp_regs);
+static DEFINE_PER_CPU(int, bpf_raw_tp_nest_level);
+static struct pt_regs *get_bpf_raw_tp_regs(void)
+{
+	struct bpf_raw_tp_regs *tp_regs = this_cpu_ptr(&bpf_raw_tp_regs);
+	int nest_level = this_cpu_inc_return(bpf_raw_tp_nest_level);
+
+	if (WARN_ON_ONCE(nest_level > ARRAY_SIZE(tp_regs->regs))) {
+		this_cpu_dec(bpf_raw_tp_nest_level);
+		return ERR_PTR(-EBUSY);
+	}
+
+	return &tp_regs->regs[nest_level - 1];
+}
+
+static void put_bpf_raw_tp_regs(void)
+{
+	this_cpu_dec(bpf_raw_tp_nest_level);
+}
+
 BPF_CALL_5(bpf_perf_event_output_raw_tp, struct bpf_raw_tracepoint_args *, args,
 	   struct bpf_map *, map, u64, flags, void *, data, u64, size)
 {
-	struct pt_regs *regs = this_cpu_ptr(&bpf_raw_tp_regs);
+	struct pt_regs *regs = get_bpf_raw_tp_regs();
+	int ret;
+
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
 
 	perf_fetch_caller_regs(regs);
-	return ____bpf_perf_event_output(regs, map, flags, data, size);
+	ret = ____bpf_perf_event_output(regs, map, flags, data, size);
+
+	put_bpf_raw_tp_regs();
+	return ret;
 }
 
 static const struct bpf_func_proto bpf_perf_event_output_proto_raw_tp = {
@@ -834,12 +890,18 @@ static const struct bpf_func_proto bpf_p
 BPF_CALL_3(bpf_get_stackid_raw_tp, struct bpf_raw_tracepoint_args *, args,
 	   struct bpf_map *, map, u64, flags)
 {
-	struct pt_regs *regs = this_cpu_ptr(&bpf_raw_tp_regs);
+	struct pt_regs *regs = get_bpf_raw_tp_regs();
+	int ret;
+
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
 
 	perf_fetch_caller_regs(regs);
 	/* similar to bpf_perf_event_output_tp, but pt_regs fetched differently */
-	return bpf_get_stackid((unsigned long) regs, (unsigned long) map,
-			       flags, 0, 0);
+	ret = bpf_get_stackid((unsigned long) regs, (unsigned long) map,
+			      flags, 0, 0);
+	put_bpf_raw_tp_regs();
+	return ret;
 }
 
 static const struct bpf_func_proto bpf_get_stackid_proto_raw_tp = {
@@ -854,11 +916,17 @@ static const struct bpf_func_proto bpf_g
 BPF_CALL_4(bpf_get_stack_raw_tp, struct bpf_raw_tracepoint_args *, args,
 	   void *, buf, u32, size, u64, flags)
 {
-	struct pt_regs *regs = this_cpu_ptr(&bpf_raw_tp_regs);
+	struct pt_regs *regs = get_bpf_raw_tp_regs();
+	int ret;
+
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
 
 	perf_fetch_caller_regs(regs);
-	return bpf_get_stack((unsigned long) regs, (unsigned long) buf,
-			     (unsigned long) size, flags, 0);
+	ret = bpf_get_stack((unsigned long) regs, (unsigned long) buf,
+			    (unsigned long) size, flags, 0);
+	put_bpf_raw_tp_regs();
+	return ret;
 }
 
 static const struct bpf_func_proto bpf_get_stack_proto_raw_tp = {
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/ftrace.c linux-libre-5.1.21-gnu/kernel/trace/ftrace.c
--- linux-libre-5.1-gnu/kernel/trace/ftrace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/ftrace.c	2019-07-28 02:28:39.000000000 -0400
@@ -2939,14 +2939,13 @@ static int ftrace_update_code(struct mod
 			p = &pg->records[i];
 			p->flags = rec_flags;
 
-#ifndef CC_USING_NOP_MCOUNT
 			/*
 			 * Do the initial record conversion from mcount jump
 			 * to the NOP instructions.
 			 */
-			if (!ftrace_code_disable(mod, p))
+			if (!__is_defined(CC_USING_NOP_MCOUNT) &&
+			    !ftrace_code_disable(mod, p))
 				break;
-#endif
 
 			update_cnt++;
 		}
@@ -4225,10 +4224,13 @@ void free_ftrace_func_mapper(struct ftra
 	struct ftrace_func_entry *entry;
 	struct ftrace_func_map *map;
 	struct hlist_head *hhd;
-	int size = 1 << mapper->hash.size_bits;
-	int i;
+	int size, i;
+
+	if (!mapper)
+		return;
 
 	if (free_func && mapper->hash.count) {
+		size = 1 << mapper->hash.size_bits;
 		for (i = 0; i < size; i++) {
 			hhd = &mapper->hash.buckets[i];
 			hlist_for_each_entry(entry, hhd, hlist) {
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/trace.c linux-libre-5.1.21-gnu/kernel/trace/trace.c
--- linux-libre-5.1-gnu/kernel/trace/trace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/trace.c	2019-07-28 02:28:39.000000000 -0400
@@ -6696,11 +6696,13 @@ tracing_snapshot_write(struct file *filp
 			break;
 		}
 #endif
-		if (!tr->allocated_snapshot) {
+		if (tr->allocated_snapshot)
+			ret = resize_buffer_duplicate_size(&tr->max_buffer,
+					&tr->trace_buffer, iter->cpu_file);
+		else
 			ret = tracing_alloc_snapshot_instance(tr);
-			if (ret < 0)
-				break;
-		}
+		if (ret < 0)
+			break;
 		local_irq_disable();
 		/* Now, we're going to swap */
 		if (iter->cpu_file == RING_BUFFER_ALL_CPUS)
@@ -8627,12 +8629,8 @@ void ftrace_dump(enum ftrace_dump_mode o
 
 		cnt++;
 
-		/* reset all but tr, trace, and overruns */
-		memset(&iter.seq, 0,
-		       sizeof(struct trace_iterator) -
-		       offsetof(struct trace_iterator, seq));
+		trace_iterator_reset(&iter);
 		iter.iter_flags |= TRACE_FILE_LAT_FMT;
-		iter.pos = -1;
 
 		if (trace_find_next_entry_inc(&iter) != NULL) {
 			int ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/trace_events.c linux-libre-5.1.21-gnu/kernel/trace/trace_events.c
--- linux-libre-5.1-gnu/kernel/trace/trace_events.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/trace_events.c	2019-07-28 02:28:39.000000000 -0400
@@ -1318,9 +1318,6 @@ event_id_read(struct file *filp, char __
 	char buf[32];
 	int len;
 
-	if (*ppos)
-		return 0;
-
 	if (unlikely(!id))
 		return -ENODEV;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/trace_events_filter.c linux-libre-5.1.21-gnu/kernel/trace/trace_events_filter.c
--- linux-libre-5.1-gnu/kernel/trace/trace_events_filter.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/trace_events_filter.c	2019-07-28 02:28:39.000000000 -0400
@@ -427,7 +427,7 @@ predicate_parse(const char *str, int nr_
 	op_stack = kmalloc_array(nr_parens, sizeof(*op_stack), GFP_KERNEL);
 	if (!op_stack)
 		return ERR_PTR(-ENOMEM);
-	prog_stack = kmalloc_array(nr_preds, sizeof(*prog_stack), GFP_KERNEL);
+	prog_stack = kcalloc(nr_preds, sizeof(*prog_stack), GFP_KERNEL);
 	if (!prog_stack) {
 		parse_error(pe, -ENOMEM, 0);
 		goto out_free;
@@ -578,7 +578,11 @@ predicate_parse(const char *str, int nr_
 out_free:
 	kfree(op_stack);
 	kfree(inverts);
-	kfree(prog_stack);
+	if (prog_stack) {
+		for (i = 0; prog_stack[i].pred; i++)
+			kfree(prog_stack[i].pred);
+		kfree(prog_stack);
+	}
 	return ERR_PTR(ret);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/trace_events_hist.c linux-libre-5.1.21-gnu/kernel/trace/trace_events_hist.c
--- linux-libre-5.1-gnu/kernel/trace/trace_events_hist.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/trace_events_hist.c	2019-07-28 02:28:39.000000000 -0400
@@ -1815,6 +1815,9 @@ static u64 hist_field_var_ref(struct his
 	struct hist_elt_data *elt_data;
 	u64 var_val = 0;
 
+	if (WARN_ON_ONCE(!elt))
+		return var_val;
+
 	elt_data = elt->private_data;
 	var_val = elt_data->var_ref_vals[hist_field->var_ref_idx];
 
@@ -3543,14 +3546,20 @@ static bool cond_snapshot_update(struct
 	struct track_data *track_data = tr->cond_snapshot->cond_data;
 	struct hist_elt_data *elt_data, *track_elt_data;
 	struct snapshot_context *context = cond_data;
+	struct action_data *action;
 	u64 track_val;
 
 	if (!track_data)
 		return false;
 
+	action = track_data->action_data;
+
 	track_val = get_track_val(track_data->hist_data, context->elt,
 				  track_data->action_data);
 
+	if (!action->track_data.check_val(track_data->track_val, track_val))
+		return false;
+
 	track_data->track_val = track_val;
 	memcpy(track_data->key, context->key, track_data->key_len);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/trace.h linux-libre-5.1.21-gnu/kernel/trace/trace.h
--- linux-libre-5.1-gnu/kernel/trace/trace.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/trace.h	2019-07-28 02:28:39.000000000 -0400
@@ -1964,4 +1964,22 @@ static inline void tracer_hardirqs_off(u
 
 extern struct trace_iterator *tracepoint_print_iter;
 
+/*
+ * Reset the state of the trace_iterator so that it can read consumed data.
+ * Normally, the trace_iterator is used for reading the data when it is not
+ * consumed, and must retain state.
+ */
+static __always_inline void trace_iterator_reset(struct trace_iterator *iter)
+{
+	const size_t offset = offsetof(struct trace_iterator, seq);
+
+	/*
+	 * Keep gcc from complaining about overwriting more than just one
+	 * member in the structure.
+	 */
+	memset((char *)iter + offset, 0, sizeof(struct trace_iterator) - offset);
+
+	iter->pos = -1;
+}
+
 #endif /* _LINUX_KERNEL_TRACE_H */
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/trace_kdb.c linux-libre-5.1.21-gnu/kernel/trace/trace_kdb.c
--- linux-libre-5.1-gnu/kernel/trace/trace_kdb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/trace_kdb.c	2019-07-28 02:28:39.000000000 -0400
@@ -41,12 +41,8 @@ static void ftrace_dump_buf(int skip_lin
 
 	kdb_printf("Dumping ftrace buffer:\n");
 
-	/* reset all but tr, trace, and overruns */
-	memset(&iter.seq, 0,
-		   sizeof(struct trace_iterator) -
-		   offsetof(struct trace_iterator, seq));
+	trace_iterator_reset(&iter);
 	iter.iter_flags |= TRACE_FILE_LAT_FMT;
-	iter.pos = -1;
 
 	if (cpu_file == RING_BUFFER_ALL_CPUS) {
 		for_each_tracing_cpu(cpu) {
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/trace_probe.c linux-libre-5.1.21-gnu/kernel/trace/trace_probe.c
--- linux-libre-5.1-gnu/kernel/trace/trace_probe.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/trace_probe.c	2019-07-28 02:28:39.000000000 -0400
@@ -420,13 +420,14 @@ static int traceprobe_parse_probe_arg_bo
 				return -E2BIG;
 		}
 	}
-	/*
-	 * The default type of $comm should be "string", and it can't be
-	 * dereferenced.
-	 */
-	if (!t && strcmp(arg, "$comm") == 0)
+
+	/* Since $comm can not be dereferred, we can find $comm by strcmp */
+	if (strcmp(arg, "$comm") == 0) {
+		/* The type of $comm must be "string", and not an array. */
+		if (parg->count || (t && strcmp(t, "string")))
+			return -EINVAL;
 		parg->type = find_fetch_type("string");
-	else
+	} else
 		parg->type = find_fetch_type(t);
 	if (!parg->type) {
 		pr_info("Unsupported type: %s\n", t);
diff -druNp --no-dereference linux-libre-5.1-gnu/kernel/trace/trace_uprobe.c linux-libre-5.1.21-gnu/kernel/trace/trace_uprobe.c
--- linux-libre-5.1-gnu/kernel/trace/trace_uprobe.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/kernel/trace/trace_uprobe.c	2019-07-28 02:28:39.000000000 -0400
@@ -434,10 +434,17 @@ static int trace_uprobe_create(int argc,
 	ret = 0;
 	ref_ctr_offset = 0;
 
-	/* argc must be >= 1 */
-	if (argv[0][0] == 'r')
+	switch (argv[0][0]) {
+	case 'r':
 		is_return = true;
-	else if (argv[0][0] != 'p' || argc < 2)
+		break;
+	case 'p':
+		break;
+	default:
+		return -ECANCELED;
+	}
+
+	if (argc < 2)
 		return -ECANCELED;
 
 	if (argv[0][1] == ':')
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/idr.c linux-libre-5.1.21-gnu/lib/idr.c
--- linux-libre-5.1-gnu/lib/idr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/idr.c	2019-07-28 02:28:39.000000000 -0400
@@ -227,11 +227,21 @@ void *idr_get_next(struct idr *idr, int
 {
 	struct radix_tree_iter iter;
 	void __rcu **slot;
+	void *entry = NULL;
 	unsigned long base = idr->idr_base;
 	unsigned long id = *nextid;
 
 	id = (id < base) ? 0 : id - base;
-	slot = radix_tree_iter_find(&idr->idr_rt, &iter, id);
+	radix_tree_for_each_slot(slot, &idr->idr_rt, &iter, id) {
+		entry = rcu_dereference_raw(*slot);
+		if (!entry)
+			continue;
+		if (!xa_is_internal(entry))
+			break;
+		if (slot != &idr->idr_rt.xa_head && !xa_is_retry(entry))
+			break;
+		slot = radix_tree_iter_retry(&iter);
+	}
 	if (!slot)
 		return NULL;
 	id = iter.index + base;
@@ -240,7 +250,7 @@ void *idr_get_next(struct idr *idr, int
 		return NULL;
 
 	*nextid = id;
-	return rcu_dereference_raw(*slot);
+	return entry;
 }
 EXPORT_SYMBOL(idr_get_next);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/kobject_uevent.c linux-libre-5.1.21-gnu/lib/kobject_uevent.c
--- linux-libre-5.1-gnu/lib/kobject_uevent.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/kobject_uevent.c	2019-07-28 02:28:39.000000000 -0400
@@ -466,6 +466,13 @@ int kobject_uevent_env(struct kobject *k
 	int i = 0;
 	int retval = 0;
 
+	/*
+	 * Mark "remove" event done regardless of result, for some subsystems
+	 * do not want to re-trigger "remove" event via automatic cleanup.
+	 */
+	if (action == KOBJ_REMOVE)
+		kobj->state_remove_uevent_sent = 1;
+
 	pr_debug("kobject: '%s' (%p): %s\n",
 		 kobject_name(kobj), kobj, __func__);
 
@@ -567,10 +574,6 @@ int kobject_uevent_env(struct kobject *k
 		kobj->state_add_uevent_sent = 1;
 		break;
 
-	case KOBJ_REMOVE:
-		kobj->state_remove_uevent_sent = 1;
-		break;
-
 	case KOBJ_UNBIND:
 		zap_modalias_env(env);
 		break;
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/mpi/mpi-pow.c linux-libre-5.1.21-gnu/lib/mpi/mpi-pow.c
--- linux-libre-5.1-gnu/lib/mpi/mpi-pow.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/mpi/mpi-pow.c	2019-07-28 02:28:39.000000000 -0400
@@ -37,6 +37,7 @@
 int mpi_powm(MPI res, MPI base, MPI exp, MPI mod)
 {
 	mpi_ptr_t mp_marker = NULL, bp_marker = NULL, ep_marker = NULL;
+	struct karatsuba_ctx karactx = {};
 	mpi_ptr_t xp_marker = NULL;
 	mpi_ptr_t tspace = NULL;
 	mpi_ptr_t rp, ep, mp, bp;
@@ -163,13 +164,11 @@ int mpi_powm(MPI res, MPI base, MPI exp,
 		int c;
 		mpi_limb_t e;
 		mpi_limb_t carry_limb;
-		struct karatsuba_ctx karactx;
 
 		xp = xp_marker = mpi_alloc_limb_space(2 * (msize + 1));
 		if (!xp)
 			goto enomem;
 
-		memset(&karactx, 0, sizeof karactx);
 		negative_result = (ep[0] & 1) && base->sign;
 
 		i = esize - 1;
@@ -294,8 +293,6 @@ int mpi_powm(MPI res, MPI base, MPI exp,
 		if (mod_shift_cnt)
 			mpihelp_rshift(rp, rp, rsize, mod_shift_cnt);
 		MPN_NORMALIZE(rp, rsize);
-
-		mpihelp_release_karatsuba_ctx(&karactx);
 	}
 
 	if (negative_result && rsize) {
@@ -312,6 +309,7 @@ int mpi_powm(MPI res, MPI base, MPI exp,
 leave:
 	rc = 0;
 enomem:
+	mpihelp_release_karatsuba_ctx(&karactx);
 	if (assign_rp)
 		mpi_assign_limb_space(res, rp, size);
 	if (mp_marker)
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/reed_solomon/decode_rs.c linux-libre-5.1.21-gnu/lib/reed_solomon/decode_rs.c
--- linux-libre-5.1-gnu/lib/reed_solomon/decode_rs.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/reed_solomon/decode_rs.c	2019-07-28 02:28:39.000000000 -0400
@@ -42,8 +42,18 @@
 	BUG_ON(pad < 0 || pad >= nn);
 
 	/* Does the caller provide the syndrome ? */
-	if (s != NULL)
-		goto decode;
+	if (s != NULL) {
+		for (i = 0; i < nroots; i++) {
+			/* The syndrome is in index form,
+			 * so nn represents zero
+			 */
+			if (s[i] != nn)
+				goto decode;
+		}
+
+		/* syndrome is zero, no errors to correct  */
+		return 0;
+	}
 
 	/* form the syndromes; i.e., evaluate data(x) at roots of
 	 * g(x) */
@@ -99,9 +109,9 @@
 	if (no_eras > 0) {
 		/* Init lambda to be the erasure locator polynomial */
 		lambda[1] = alpha_to[rs_modnn(rs,
-					      prim * (nn - 1 - eras_pos[0]))];
+					prim * (nn - 1 - (eras_pos[0] + pad)))];
 		for (i = 1; i < no_eras; i++) {
-			u = rs_modnn(rs, prim * (nn - 1 - eras_pos[i]));
+			u = rs_modnn(rs, prim * (nn - 1 - (eras_pos[i] + pad)));
 			for (j = i + 1; j > 0; j--) {
 				tmp = index_of[lambda[j - 1]];
 				if (tmp != nn) {
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/sbitmap.c linux-libre-5.1.21-gnu/lib/sbitmap.c
--- linux-libre-5.1-gnu/lib/sbitmap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/sbitmap.c	2019-07-28 02:28:39.000000000 -0400
@@ -435,7 +435,7 @@ static void sbitmap_queue_update_wake_ba
 		 * to ensure that the batch size is updated before the wait
 		 * counts.
 		 */
-		smp_mb__before_atomic();
+		smp_mb();
 		for (i = 0; i < SBQ_WAIT_QUEUES; i++)
 			atomic_set(&sbq->ws[i].wait_cnt, 1);
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/scatterlist.c linux-libre-5.1.21-gnu/lib/scatterlist.c
--- linux-libre-5.1-gnu/lib/scatterlist.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/scatterlist.c	2019-07-28 02:28:39.000000000 -0400
@@ -678,17 +678,18 @@ static bool sg_miter_get_next_page(struc
 {
 	if (!miter->__remaining) {
 		struct scatterlist *sg;
-		unsigned long pgoffset;
 
 		if (!__sg_page_iter_next(&miter->piter))
 			return false;
 
 		sg = miter->piter.sg;
-		pgoffset = miter->piter.sg_pgoffset;
 
-		miter->__offset = pgoffset ? 0 : sg->offset;
+		miter->__offset = miter->piter.sg_pgoffset ? 0 : sg->offset;
+		miter->piter.sg_pgoffset += miter->__offset >> PAGE_SHIFT;
+		miter->__offset &= PAGE_SIZE - 1;
 		miter->__remaining = sg->offset + sg->length -
-				(pgoffset << PAGE_SHIFT) - miter->__offset;
+				     (miter->piter.sg_pgoffset << PAGE_SHIFT) -
+				     miter->__offset;
 		miter->__remaining = min_t(unsigned long, miter->__remaining,
 					   PAGE_SIZE - miter->__offset);
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/strncpy_from_user.c linux-libre-5.1.21-gnu/lib/strncpy_from_user.c
--- linux-libre-5.1-gnu/lib/strncpy_from_user.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/strncpy_from_user.c	2019-07-28 02:28:39.000000000 -0400
@@ -23,10 +23,11 @@
  * hit it), 'max' is the address space maximum (and we return
  * -EFAULT if we hit it).
  */
-static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
+static inline long do_strncpy_from_user(char *dst, const char __user *src,
+					unsigned long count, unsigned long max)
 {
 	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
-	long res = 0;
+	unsigned long res = 0;
 
 	/*
 	 * Truncate 'max' to the user-specified limit, so that
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/strnlen_user.c linux-libre-5.1.21-gnu/lib/strnlen_user.c
--- linux-libre-5.1-gnu/lib/strnlen_user.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/strnlen_user.c	2019-07-28 02:28:39.000000000 -0400
@@ -28,7 +28,7 @@
 static inline long do_strnlen_user(const char __user *src, unsigned long count, unsigned long max)
 {
 	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
-	long align, res = 0;
+	unsigned long align, res = 0;
 	unsigned long c;
 
 	/*
@@ -42,7 +42,7 @@ static inline long do_strnlen_user(const
 	 * Do everything aligned. But that means that we
 	 * need to also expand the maximum..
 	 */
-	align = (sizeof(long) - 1) & (unsigned long)src;
+	align = (sizeof(unsigned long) - 1) & (unsigned long)src;
 	src -= align;
 	max += align;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/test_firmware.c linux-libre-5.1.21-gnu/lib/test_firmware.c
--- linux-libre-5.1-gnu/lib/test_firmware.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/test_firmware.c	2019-07-28 02:28:39.000000000 -0400
@@ -223,30 +223,30 @@ static ssize_t config_show(struct device
 
 	mutex_lock(&test_fw_mutex);
 
-	len += snprintf(buf, PAGE_SIZE,
+	len += scnprintf(buf, PAGE_SIZE - len,
 			"Custom trigger configuration for: %s\n",
 			dev_name(dev));
 
 	if (test_fw_config->name)
-		len += snprintf(buf+len, PAGE_SIZE,
+		len += scnprintf(buf+len, PAGE_SIZE - len,
 				"name:\t%s\n",
 				test_fw_config->name);
 	else
-		len += snprintf(buf+len, PAGE_SIZE,
+		len += scnprintf(buf+len, PAGE_SIZE - len,
 				"name:\tEMTPY\n");
 
-	len += snprintf(buf+len, PAGE_SIZE,
+	len += scnprintf(buf+len, PAGE_SIZE - len,
 			"num_requests:\t%u\n", test_fw_config->num_requests);
 
-	len += snprintf(buf+len, PAGE_SIZE,
+	len += scnprintf(buf+len, PAGE_SIZE - len,
 			"send_uevent:\t\t%s\n",
 			test_fw_config->send_uevent ?
 			"FW_ACTION_HOTPLUG" :
 			"FW_ACTION_NOHOTPLUG");
-	len += snprintf(buf+len, PAGE_SIZE,
+	len += scnprintf(buf+len, PAGE_SIZE - len,
 			"sync_direct:\t\t%s\n",
 			test_fw_config->sync_direct ? "true" : "false");
-	len += snprintf(buf+len, PAGE_SIZE,
+	len += scnprintf(buf+len, PAGE_SIZE - len,
 			"read_fw_idx:\t%u\n", test_fw_config->read_fw_idx);
 
 	mutex_unlock(&test_fw_mutex);
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/ubsan.c linux-libre-5.1.21-gnu/lib/ubsan.c
--- linux-libre-5.1-gnu/lib/ubsan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/ubsan.c	2019-07-28 02:28:39.000000000 -0400
@@ -86,11 +86,13 @@ static bool is_inline_int(struct type_de
 	return bits <= inline_bits;
 }
 
-static s_max get_signed_val(struct type_descriptor *type, unsigned long val)
+static s_max get_signed_val(struct type_descriptor *type, void *val)
 {
 	if (is_inline_int(type)) {
 		unsigned extra_bits = sizeof(s_max)*8 - type_bit_width(type);
-		return ((s_max)val) << extra_bits >> extra_bits;
+		unsigned long ulong_val = (unsigned long)val;
+
+		return ((s_max)ulong_val) << extra_bits >> extra_bits;
 	}
 
 	if (type_bit_width(type) == 64)
@@ -99,15 +101,15 @@ static s_max get_signed_val(struct type_
 	return *(s_max *)val;
 }
 
-static bool val_is_negative(struct type_descriptor *type, unsigned long val)
+static bool val_is_negative(struct type_descriptor *type, void *val)
 {
 	return type_is_signed(type) && get_signed_val(type, val) < 0;
 }
 
-static u_max get_unsigned_val(struct type_descriptor *type, unsigned long val)
+static u_max get_unsigned_val(struct type_descriptor *type, void *val)
 {
 	if (is_inline_int(type))
-		return val;
+		return (unsigned long)val;
 
 	if (type_bit_width(type) == 64)
 		return *(u64 *)val;
@@ -116,7 +118,7 @@ static u_max get_unsigned_val(struct typ
 }
 
 static void val_to_string(char *str, size_t size, struct type_descriptor *type,
-	unsigned long value)
+			void *value)
 {
 	if (type_is_int(type)) {
 		if (type_bit_width(type) == 128) {
@@ -163,8 +165,8 @@ static void ubsan_epilogue(unsigned long
 	current->in_ubsan--;
 }
 
-static void handle_overflow(struct overflow_data *data, unsigned long lhs,
-			unsigned long rhs, char op)
+static void handle_overflow(struct overflow_data *data, void *lhs,
+			void *rhs, char op)
 {
 
 	struct type_descriptor *type = data->type;
@@ -191,8 +193,7 @@ static void handle_overflow(struct overf
 }
 
 void __ubsan_handle_add_overflow(struct overflow_data *data,
-				unsigned long lhs,
-				unsigned long rhs)
+				void *lhs, void *rhs)
 {
 
 	handle_overflow(data, lhs, rhs, '+');
@@ -200,23 +201,21 @@ void __ubsan_handle_add_overflow(struct
 EXPORT_SYMBOL(__ubsan_handle_add_overflow);
 
 void __ubsan_handle_sub_overflow(struct overflow_data *data,
-				unsigned long lhs,
-				unsigned long rhs)
+				void *lhs, void *rhs)
 {
 	handle_overflow(data, lhs, rhs, '-');
 }
 EXPORT_SYMBOL(__ubsan_handle_sub_overflow);
 
 void __ubsan_handle_mul_overflow(struct overflow_data *data,
-				unsigned long lhs,
-				unsigned long rhs)
+				void *lhs, void *rhs)
 {
 	handle_overflow(data, lhs, rhs, '*');
 }
 EXPORT_SYMBOL(__ubsan_handle_mul_overflow);
 
 void __ubsan_handle_negate_overflow(struct overflow_data *data,
-				unsigned long old_val)
+				void *old_val)
 {
 	unsigned long flags;
 	char old_val_str[VALUE_LENGTH];
@@ -237,8 +236,7 @@ EXPORT_SYMBOL(__ubsan_handle_negate_over
 
 
 void __ubsan_handle_divrem_overflow(struct overflow_data *data,
-				unsigned long lhs,
-				unsigned long rhs)
+				void *lhs, void *rhs)
 {
 	unsigned long flags;
 	char rhs_val_str[VALUE_LENGTH];
@@ -323,7 +321,7 @@ static void ubsan_type_mismatch_common(s
 }
 
 void __ubsan_handle_type_mismatch(struct type_mismatch_data *data,
-				unsigned long ptr)
+				void *ptr)
 {
 	struct type_mismatch_data_common common_data = {
 		.location = &data->location,
@@ -332,12 +330,12 @@ void __ubsan_handle_type_mismatch(struct
 		.type_check_kind = data->type_check_kind
 	};
 
-	ubsan_type_mismatch_common(&common_data, ptr);
+	ubsan_type_mismatch_common(&common_data, (unsigned long)ptr);
 }
 EXPORT_SYMBOL(__ubsan_handle_type_mismatch);
 
 void __ubsan_handle_type_mismatch_v1(struct type_mismatch_data_v1 *data,
-				unsigned long ptr)
+				void *ptr)
 {
 
 	struct type_mismatch_data_common common_data = {
@@ -347,12 +345,12 @@ void __ubsan_handle_type_mismatch_v1(str
 		.type_check_kind = data->type_check_kind
 	};
 
-	ubsan_type_mismatch_common(&common_data, ptr);
+	ubsan_type_mismatch_common(&common_data, (unsigned long)ptr);
 }
 EXPORT_SYMBOL(__ubsan_handle_type_mismatch_v1);
 
 void __ubsan_handle_vla_bound_not_positive(struct vla_bound_data *data,
-					unsigned long bound)
+					void *bound)
 {
 	unsigned long flags;
 	char bound_str[VALUE_LENGTH];
@@ -369,8 +367,7 @@ void __ubsan_handle_vla_bound_not_positi
 }
 EXPORT_SYMBOL(__ubsan_handle_vla_bound_not_positive);
 
-void __ubsan_handle_out_of_bounds(struct out_of_bounds_data *data,
-				unsigned long index)
+void __ubsan_handle_out_of_bounds(struct out_of_bounds_data *data, void *index)
 {
 	unsigned long flags;
 	char index_str[VALUE_LENGTH];
@@ -388,7 +385,7 @@ void __ubsan_handle_out_of_bounds(struct
 EXPORT_SYMBOL(__ubsan_handle_out_of_bounds);
 
 void __ubsan_handle_shift_out_of_bounds(struct shift_out_of_bounds_data *data,
-					unsigned long lhs, unsigned long rhs)
+					void *lhs, void *rhs)
 {
 	unsigned long flags;
 	struct type_descriptor *rhs_type = data->rhs_type;
@@ -439,7 +436,7 @@ void __ubsan_handle_builtin_unreachable(
 EXPORT_SYMBOL(__ubsan_handle_builtin_unreachable);
 
 void __ubsan_handle_load_invalid_value(struct invalid_value_data *data,
-				unsigned long val)
+				void *val)
 {
 	unsigned long flags;
 	char val_str[VALUE_LENGTH];
diff -druNp --no-dereference linux-libre-5.1-gnu/lib/xarray.c linux-libre-5.1.21-gnu/lib/xarray.c
--- linux-libre-5.1-gnu/lib/xarray.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/lib/xarray.c	2019-07-28 02:28:39.000000000 -0400
@@ -298,6 +298,8 @@ bool xas_nomem(struct xa_state *xas, gfp
 		xas_destroy(xas);
 		return false;
 	}
+	if (xas->xa->xa_flags & XA_FLAGS_ACCOUNT)
+		gfp |= __GFP_ACCOUNT;
 	xas->xa_alloc = kmem_cache_alloc(radix_tree_node_cachep, gfp);
 	if (!xas->xa_alloc)
 		return false;
@@ -325,6 +327,8 @@ static bool __xas_nomem(struct xa_state
 		xas_destroy(xas);
 		return false;
 	}
+	if (xas->xa->xa_flags & XA_FLAGS_ACCOUNT)
+		gfp |= __GFP_ACCOUNT;
 	if (gfpflags_allow_blocking(gfp)) {
 		xas_unlock_type(xas, lock_type);
 		xas->xa_alloc = kmem_cache_alloc(radix_tree_node_cachep, gfp);
@@ -358,8 +362,12 @@ static void *xas_alloc(struct xa_state *
 	if (node) {
 		xas->xa_alloc = NULL;
 	} else {
-		node = kmem_cache_alloc(radix_tree_node_cachep,
-					GFP_NOWAIT | __GFP_NOWARN);
+		gfp_t gfp = GFP_NOWAIT | __GFP_NOWARN;
+
+		if (xas->xa->xa_flags & XA_FLAGS_ACCOUNT)
+			gfp |= __GFP_ACCOUNT;
+
+		node = kmem_cache_alloc(radix_tree_node_cachep, gfp);
 		if (!node) {
 			xas_set_err(xas, -ENOMEM);
 			return NULL;
diff -druNp --no-dereference linux-libre-5.1-gnu/Makefile linux-libre-5.1.21-gnu/Makefile
--- linux-libre-5.1-gnu/Makefile	2019-05-05 21:18:27.000000000 -0400
+++ linux-libre-5.1.21-gnu/Makefile	2019-07-28 13:19:35.000000000 -0400
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 1
-SUBLEVEL = 0
+SUBLEVEL = 21
 EXTRAVERSION = -gnu
 NAME = Shy Crocodile
 
@@ -636,7 +636,7 @@ ifeq ($(may-sync-config),1)
 # Read in dependencies to all Kconfig* files, make sure to run syncconfig if
 # changes are detected. This should be included after arch/$(SRCARCH)/Makefile
 # because some architectures define CROSS_COMPILE there.
--include include/config/auto.conf.cmd
+include include/config/auto.conf.cmd
 
 $(KCONFIG_CONFIG):
 	@echo >&2 '***'
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/cma.c linux-libre-5.1.21-gnu/mm/cma.c
--- linux-libre-5.1-gnu/mm/cma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/cma.c	2019-07-28 02:28:39.000000000 -0400
@@ -106,8 +106,10 @@ static int __init cma_activate_area(stru
 
 	cma->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
 
-	if (!cma->bitmap)
+	if (!cma->bitmap) {
+		cma->count = 0;
 		return -ENOMEM;
+	}
 
 	WARN_ON_ONCE(!pfn_valid(pfn));
 	zone = page_zone(pfn_to_page(pfn));
@@ -367,23 +369,26 @@ err:
 #ifdef CONFIG_CMA_DEBUG
 static void cma_debug_show_areas(struct cma *cma)
 {
-	unsigned long next_zero_bit, next_set_bit;
+	unsigned long next_zero_bit, next_set_bit, nr_zero;
 	unsigned long start = 0;
-	unsigned int nr_zero, nr_total = 0;
+	unsigned long nr_part, nr_total = 0;
+	unsigned long nbits = cma_bitmap_maxno(cma);
 
 	mutex_lock(&cma->lock);
 	pr_info("number of available pages: ");
 	for (;;) {
-		next_zero_bit = find_next_zero_bit(cma->bitmap, cma->count, start);
-		if (next_zero_bit >= cma->count)
+		next_zero_bit = find_next_zero_bit(cma->bitmap, nbits, start);
+		if (next_zero_bit >= nbits)
 			break;
-		next_set_bit = find_next_bit(cma->bitmap, cma->count, next_zero_bit);
+		next_set_bit = find_next_bit(cma->bitmap, nbits, next_zero_bit);
 		nr_zero = next_set_bit - next_zero_bit;
-		pr_cont("%s%u@%lu", nr_total ? "+" : "", nr_zero, next_zero_bit);
-		nr_total += nr_zero;
+		nr_part = nr_zero << cma->order_per_bit;
+		pr_cont("%s%lu@%lu", nr_total ? "+" : "", nr_part,
+			next_zero_bit);
+		nr_total += nr_part;
 		start = next_zero_bit + nr_zero;
 	}
-	pr_cont("=> %u free of %lu total pages\n", nr_total, cma->count);
+	pr_cont("=> %lu free of %lu total pages\n", nr_total, cma->count);
 	mutex_unlock(&cma->lock);
 }
 #else
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/cma_debug.c linux-libre-5.1.21-gnu/mm/cma_debug.c
--- linux-libre-5.1-gnu/mm/cma_debug.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/cma_debug.c	2019-07-28 02:28:39.000000000 -0400
@@ -56,7 +56,7 @@ static int cma_maxchunk_get(void *data,
 	mutex_lock(&cma->lock);
 	for (;;) {
 		start = find_next_zero_bit(cma->bitmap, bitmap_maxno, end);
-		if (start >= cma->count)
+		if (start >= bitmap_maxno)
 			break;
 		end = find_next_bit(cma->bitmap, bitmap_maxno, start);
 		maxchunk = max(end - start, maxchunk);
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/compaction.c linux-libre-5.1.21-gnu/mm/compaction.c
--- linux-libre-5.1-gnu/mm/compaction.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/compaction.c	2019-07-28 02:28:39.000000000 -0400
@@ -1164,7 +1164,9 @@ static bool suitable_migration_target(st
 static inline unsigned int
 freelist_scan_limit(struct compact_control *cc)
 {
-	return (COMPACT_CLUSTER_MAX >> cc->fast_search_fail) + 1;
+	unsigned short shift = BITS_PER_LONG - 1;
+
+	return (COMPACT_CLUSTER_MAX >> min(shift, cc->fast_search_fail)) + 1;
 }
 
 /*
@@ -1228,7 +1230,7 @@ fast_isolate_around(struct compact_contr
 
 	/* Pageblock boundaries */
 	start_pfn = pageblock_start_pfn(pfn);
-	end_pfn = min(start_pfn + pageblock_nr_pages, zone_end_pfn(cc->zone));
+	end_pfn = min(pageblock_end_pfn(pfn), zone_end_pfn(cc->zone)) - 1;
 
 	/* Scan before */
 	if (start_pfn != pfn) {
@@ -1239,7 +1241,7 @@ fast_isolate_around(struct compact_contr
 
 	/* Scan after */
 	start_pfn = pfn + nr_isolated;
-	if (start_pfn != end_pfn)
+	if (start_pfn < end_pfn)
 		isolate_freepages_block(cc, &start_pfn, end_pfn, &cc->freepages, 1, false);
 
 	/* Skip this pageblock in the future as it's full or nearly full */
@@ -1397,7 +1399,7 @@ fast_isolate_freepages(struct compact_co
 				page = pfn_to_page(highest);
 				cc->free_pfn = highest;
 			} else {
-				if (cc->direct_compaction) {
+				if (cc->direct_compaction && pfn_valid(min_pfn)) {
 					page = pfn_to_page(min_pfn);
 					cc->free_pfn = min_pfn;
 				}
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/filemap.c linux-libre-5.1.21-gnu/mm/filemap.c
--- linux-libre-5.1-gnu/mm/filemap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/filemap.c	2019-07-28 02:28:39.000000000 -0400
@@ -548,6 +548,28 @@ int filemap_fdatawait_range(struct addre
 EXPORT_SYMBOL(filemap_fdatawait_range);
 
 /**
+ * filemap_fdatawait_range_keep_errors - wait for writeback to complete
+ * @mapping:		address space structure to wait for
+ * @start_byte:		offset in bytes where the range starts
+ * @end_byte:		offset in bytes where the range ends (inclusive)
+ *
+ * Walk the list of under-writeback pages of the given address space in the
+ * given range and wait for all of them.  Unlike filemap_fdatawait_range(),
+ * this function does not clear error status of the address space.
+ *
+ * Use this function if callers don't handle errors themselves.  Expected
+ * call sites are system-wide / filesystem-wide data flushers: e.g. sync(2),
+ * fsfreeze(8)
+ */
+int filemap_fdatawait_range_keep_errors(struct address_space *mapping,
+		loff_t start_byte, loff_t end_byte)
+{
+	__filemap_fdatawait_range(mapping, start_byte, end_byte);
+	return filemap_check_and_keep_errors(mapping);
+}
+EXPORT_SYMBOL(filemap_fdatawait_range_keep_errors);
+
+/**
  * file_fdatawait_range - wait for writeback to complete
  * @file:		file pointing to address space structure to wait for
  * @start_byte:		offset in bytes where the range starts
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/huge_memory.c linux-libre-5.1.21-gnu/mm/huge_memory.c
--- linux-libre-5.1-gnu/mm/huge_memory.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/huge_memory.c	2019-07-28 02:28:39.000000000 -0400
@@ -793,11 +793,13 @@ out_unlock:
 		pte_free(mm, pgtable);
 }
 
-vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr,
-			pmd_t *pmd, pfn_t pfn, bool write)
+vm_fault_t vmf_insert_pfn_pmd(struct vm_fault *vmf, pfn_t pfn, bool write)
 {
+	unsigned long addr = vmf->address & PMD_MASK;
+	struct vm_area_struct *vma = vmf->vma;
 	pgprot_t pgprot = vma->vm_page_prot;
 	pgtable_t pgtable = NULL;
+
 	/*
 	 * If we had pmd_special, we could avoid all these restrictions,
 	 * but we need to be consistent with PTEs and architectures that
@@ -820,7 +822,7 @@ vm_fault_t vmf_insert_pfn_pmd(struct vm_
 
 	track_pfn_insert(vma, &pgprot, pfn);
 
-	insert_pfn_pmd(vma, addr, pmd, pfn, pgprot, write, pgtable);
+	insert_pfn_pmd(vma, addr, vmf->pmd, pfn, pgprot, write, pgtable);
 	return VM_FAULT_NOPAGE;
 }
 EXPORT_SYMBOL_GPL(vmf_insert_pfn_pmd);
@@ -869,10 +871,12 @@ out_unlock:
 	spin_unlock(ptl);
 }
 
-vm_fault_t vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr,
-			pud_t *pud, pfn_t pfn, bool write)
+vm_fault_t vmf_insert_pfn_pud(struct vm_fault *vmf, pfn_t pfn, bool write)
 {
+	unsigned long addr = vmf->address & PUD_MASK;
+	struct vm_area_struct *vma = vmf->vma;
 	pgprot_t pgprot = vma->vm_page_prot;
+
 	/*
 	 * If we had pud_special, we could avoid all these restrictions,
 	 * but we need to be consistent with PTEs and architectures that
@@ -889,7 +893,7 @@ vm_fault_t vmf_insert_pfn_pud(struct vm_
 
 	track_pfn_insert(vma, &pgprot, pfn);
 
-	insert_pfn_pud(vma, addr, pud, pfn, pgprot, write);
+	insert_pfn_pud(vma, addr, vmf->pud, pfn, pgprot, write);
 	return VM_FAULT_NOPAGE;
 }
 EXPORT_SYMBOL_GPL(vmf_insert_pfn_pud);
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/hugetlb.c linux-libre-5.1.21-gnu/mm/hugetlb.c
--- linux-libre-5.1-gnu/mm/hugetlb.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/hugetlb.c	2019-07-28 02:28:39.000000000 -0400
@@ -1258,12 +1258,23 @@ void free_huge_page(struct page *page)
 	ClearPagePrivate(page);
 
 	/*
-	 * A return code of zero implies that the subpool will be under its
-	 * minimum size if the reservation is not restored after page is free.
-	 * Therefore, force restore_reserve operation.
+	 * If PagePrivate() was set on page, page allocation consumed a
+	 * reservation.  If the page was associated with a subpool, there
+	 * would have been a page reserved in the subpool before allocation
+	 * via hugepage_subpool_get_pages().  Since we are 'restoring' the
+	 * reservtion, do not call hugepage_subpool_put_pages() as this will
+	 * remove the reserved page from the subpool.
 	 */
-	if (hugepage_subpool_put_pages(spool, 1) == 0)
-		restore_reserve = true;
+	if (!restore_reserve) {
+		/*
+		 * A return code of zero implies that the subpool will be
+		 * under its minimum size if the reservation is not restored
+		 * after page is free.  Therefore, force restore_reserve
+		 * operation.
+		 */
+		if (hugepage_subpool_put_pages(spool, 1) == 0)
+			restore_reserve = true;
+	}
 
 	spin_lock(&hugetlb_lock);
 	clear_page_huge_active(page);
@@ -1480,16 +1491,29 @@ static int free_pool_huge_page(struct hs
 
 /*
  * Dissolve a given free hugepage into free buddy pages. This function does
- * nothing for in-use (including surplus) hugepages. Returns -EBUSY if the
- * dissolution fails because a give page is not a free hugepage, or because
- * free hugepages are fully reserved.
+ * nothing for in-use hugepages and non-hugepages.
+ * This function returns values like below:
+ *
+ *  -EBUSY: failed to dissolved free hugepages or the hugepage is in-use
+ *          (allocated or reserved.)
+ *       0: successfully dissolved free hugepages or the page is not a
+ *          hugepage (considered as already dissolved)
  */
 int dissolve_free_huge_page(struct page *page)
 {
 	int rc = -EBUSY;
 
+	/* Not to disrupt normal path by vainly holding hugetlb_lock */
+	if (!PageHuge(page))
+		return 0;
+
 	spin_lock(&hugetlb_lock);
-	if (PageHuge(page) && !page_count(page)) {
+	if (!PageHuge(page)) {
+		rc = 0;
+		goto out;
+	}
+
+	if (!page_count(page)) {
 		struct page *head = compound_head(page);
 		struct hstate *h = page_hstate(head);
 		int nid = page_to_nid(head);
@@ -1534,11 +1558,9 @@ int dissolve_free_huge_pages(unsigned lo
 
 	for (pfn = start_pfn; pfn < end_pfn; pfn += 1 << minimum_order) {
 		page = pfn_to_page(pfn);
-		if (PageHuge(page) && !page_count(page)) {
-			rc = dissolve_free_huge_page(page);
-			if (rc)
-				break;
-		}
+		rc = dissolve_free_huge_page(page);
+		if (rc)
+			break;
 	}
 
 	return rc;
@@ -1574,8 +1596,9 @@ static struct page *alloc_surplus_huge_p
 	 */
 	if (h->surplus_huge_pages >= h->nr_overcommit_huge_pages) {
 		SetPageHugeTemporary(page);
+		spin_unlock(&hugetlb_lock);
 		put_page(page);
-		page = NULL;
+		return NULL;
 	} else {
 		h->surplus_huge_pages++;
 		h->surplus_huge_pages_node[page_to_nid(page)]++;
@@ -3777,8 +3800,7 @@ retry:
 			 * handling userfault.  Reacquire after handling
 			 * fault to make calling code simpler.
 			 */
-			hash = hugetlb_fault_mutex_hash(h, mm, vma, mapping,
-							idx, haddr);
+			hash = hugetlb_fault_mutex_hash(h, mapping, idx, haddr);
 			mutex_unlock(&hugetlb_fault_mutex_table[hash]);
 			ret = handle_userfault(&vmf, VM_UFFD_MISSING);
 			mutex_lock(&hugetlb_fault_mutex_table[hash]);
@@ -3886,21 +3908,14 @@ backout_unlocked:
 }
 
 #ifdef CONFIG_SMP
-u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm,
-			    struct vm_area_struct *vma,
-			    struct address_space *mapping,
+u32 hugetlb_fault_mutex_hash(struct hstate *h, struct address_space *mapping,
 			    pgoff_t idx, unsigned long address)
 {
 	unsigned long key[2];
 	u32 hash;
 
-	if (vma->vm_flags & VM_SHARED) {
-		key[0] = (unsigned long) mapping;
-		key[1] = idx;
-	} else {
-		key[0] = (unsigned long) mm;
-		key[1] = address >> huge_page_shift(h);
-	}
+	key[0] = (unsigned long) mapping;
+	key[1] = idx;
 
 	hash = jhash2((u32 *)&key, sizeof(key)/sizeof(u32), 0);
 
@@ -3911,9 +3926,7 @@ u32 hugetlb_fault_mutex_hash(struct hsta
  * For uniprocesor systems we always use a single mutex, so just
  * return 0 and avoid the hashing overhead.
  */
-u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm,
-			    struct vm_area_struct *vma,
-			    struct address_space *mapping,
+u32 hugetlb_fault_mutex_hash(struct hstate *h, struct address_space *mapping,
 			    pgoff_t idx, unsigned long address)
 {
 	return 0;
@@ -3958,7 +3971,7 @@ vm_fault_t hugetlb_fault(struct mm_struc
 	 * get spurious allocation failures if two CPUs race to instantiate
 	 * the same page in the page cache.
 	 */
-	hash = hugetlb_fault_mutex_hash(h, mm, vma, mapping, idx, haddr);
+	hash = hugetlb_fault_mutex_hash(h, mapping, idx, haddr);
 	mutex_lock(&hugetlb_fault_mutex_table[hash]);
 
 	entry = huge_ptep_get(ptep);
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/kasan/common.c linux-libre-5.1.21-gnu/mm/kasan/common.c
--- linux-libre-5.1-gnu/mm/kasan/common.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/kasan/common.c	2019-07-28 02:28:39.000000000 -0400
@@ -472,7 +472,7 @@ static void *__kasan_kmalloc(struct kmem
 {
 	unsigned long redzone_start;
 	unsigned long redzone_end;
-	u8 tag;
+	u8 tag = 0xff;
 
 	if (gfpflags_allow_blocking(flags))
 		quarantine_reduce();
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/Kconfig linux-libre-5.1.21-gnu/mm/Kconfig
--- linux-libre-5.1-gnu/mm/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -694,12 +694,12 @@ config DEV_PAGEMAP_OPS
 
 config HMM
 	bool
+	select MMU_NOTIFIER
 	select MIGRATE_VMA_HELPER
 
 config HMM_MIRROR
 	bool "HMM mirror CPU page table into a device page table"
 	depends on ARCH_HAS_HMM
-	select MMU_NOTIFIER
 	select HMM
 	help
 	  Select HMM_MIRROR if you want to mirror range of the CPU page table of a
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/khugepaged.c linux-libre-5.1.21-gnu/mm/khugepaged.c
--- linux-libre-5.1-gnu/mm/khugepaged.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/khugepaged.c	2019-07-28 02:28:39.000000000 -0400
@@ -1004,6 +1004,9 @@ static void collapse_huge_page(struct mm
 	 * handled by the anon_vma lock + PG_lock.
 	 */
 	down_write(&mm->mmap_sem);
+	result = SCAN_ANY_PROCESS;
+	if (!mmget_still_valid(mm))
+		goto out;
 	result = hugepage_vma_revalidate(mm, address, &vma);
 	if (result)
 		goto out;
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/list_lru.c linux-libre-5.1.21-gnu/mm/list_lru.c
--- linux-libre-5.1-gnu/mm/list_lru.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/list_lru.c	2019-07-28 02:28:39.000000000 -0400
@@ -37,11 +37,7 @@ static int lru_shrinker_id(struct list_l
 
 static inline bool list_lru_memcg_aware(struct list_lru *lru)
 {
-	/*
-	 * This needs node 0 to be always present, even
-	 * in the systems supporting sparse numa ids.
-	 */
-	return !!lru->node[0].memcg_lrus;
+	return lru->memcg_aware;
 }
 
 static inline struct list_lru_one *
@@ -357,7 +353,7 @@ static int __memcg_init_list_lru_node(st
 	}
 	return 0;
 fail:
-	__memcg_destroy_list_lru_node(memcg_lrus, begin, i - 1);
+	__memcg_destroy_list_lru_node(memcg_lrus, begin, i);
 	return -ENOMEM;
 }
 
@@ -451,6 +447,8 @@ static int memcg_init_list_lru(struct li
 {
 	int i;
 
+	lru->memcg_aware = memcg_aware;
+
 	if (!memcg_aware)
 		return 0;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/memory-failure.c linux-libre-5.1.21-gnu/mm/memory-failure.c
--- linux-libre-5.1-gnu/mm/memory-failure.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/memory-failure.c	2019-07-28 02:28:39.000000000 -0400
@@ -1733,6 +1733,8 @@ static int soft_offline_huge_page(struct
 		if (!ret) {
 			if (set_hwpoison_free_buddy_page(page))
 				num_poisoned_pages_inc();
+			else
+				ret = -EBUSY;
 		}
 	}
 	return ret;
@@ -1857,11 +1859,8 @@ static int soft_offline_in_use_page(stru
 
 static int soft_offline_free_page(struct page *page)
 {
-	int rc = 0;
-	struct page *head = compound_head(page);
+	int rc = dissolve_free_huge_page(page);
 
-	if (PageHuge(head))
-		rc = dissolve_free_huge_page(page);
 	if (!rc) {
 		if (set_hwpoison_free_buddy_page(page))
 			num_poisoned_pages_inc();
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/memory_hotplug.c linux-libre-5.1.21-gnu/mm/memory_hotplug.c
--- linux-libre-5.1-gnu/mm/memory_hotplug.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/memory_hotplug.c	2019-07-28 02:28:39.000000000 -0400
@@ -561,20 +561,6 @@ int __remove_pages(struct zone *zone, un
 	if (is_dev_zone(zone)) {
 		if (altmap)
 			map_offset = vmem_altmap_offset(altmap);
-	} else {
-		resource_size_t start, size;
-
-		start = phys_start_pfn << PAGE_SHIFT;
-		size = nr_pages * PAGE_SIZE;
-
-		ret = release_mem_region_adjustable(&iomem_resource, start,
-					size);
-		if (ret) {
-			resource_size_t endres = start + size - 1;
-
-			pr_warn("Unable to release resource <%pa-%pa> (%d)\n",
-					&start, &endres, ret);
-		}
 	}
 
 	clear_zone_contiguous(zone);
@@ -714,7 +700,7 @@ static void node_states_check_changes_on
 	if (zone_idx(zone) <= ZONE_NORMAL && !node_state(nid, N_NORMAL_MEMORY))
 		arg->status_change_nid_normal = nid;
 #ifdef CONFIG_HIGHMEM
-	if (zone_idx(zone) <= N_HIGH_MEMORY && !node_state(nid, N_HIGH_MEMORY))
+	if (zone_idx(zone) <= ZONE_HIGHMEM && !node_state(nid, N_HIGH_MEMORY))
 		arg->status_change_nid_high = nid;
 #endif
 }
@@ -1843,6 +1829,26 @@ void try_offline_node(int nid)
 }
 EXPORT_SYMBOL(try_offline_node);
 
+static void __release_memory_resource(resource_size_t start,
+				      resource_size_t size)
+{
+	int ret;
+
+	/*
+	 * When removing memory in the same granularity as it was added,
+	 * this function never fails. It might only fail if resources
+	 * have to be adjusted or split. We'll ignore the error, as
+	 * removing of memory cannot fail.
+	 */
+	ret = release_mem_region_adjustable(&iomem_resource, start, size);
+	if (ret) {
+		resource_size_t endres = start + size - 1;
+
+		pr_warn("Unable to release resource <%pa-%pa> (%d)\n",
+			&start, &endres, ret);
+	}
+}
+
 /**
  * remove_memory
  * @nid: the node ID
@@ -1877,6 +1883,7 @@ void __ref __remove_memory(int nid, u64
 	memblock_remove(start, size);
 
 	arch_remove_memory(nid, start, size, NULL);
+	__release_memory_resource(start, size);
 
 	try_offline_node(nid);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/mempolicy.c linux-libre-5.1.21-gnu/mm/mempolicy.c
--- linux-libre-5.1-gnu/mm/mempolicy.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/mempolicy.c	2019-07-28 02:28:39.000000000 -0400
@@ -306,7 +306,7 @@ static void mpol_rebind_nodemask(struct
 	else {
 		nodes_remap(tmp, pol->v.nodes,pol->w.cpuset_mems_allowed,
 								*nodes);
-		pol->w.cpuset_mems_allowed = tmp;
+		pol->w.cpuset_mems_allowed = *nodes;
 	}
 
 	if (nodes_empty(tmp))
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/mincore.c linux-libre-5.1.21-gnu/mm/mincore.c
--- linux-libre-5.1-gnu/mm/mincore.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/mincore.c	2019-07-28 02:28:39.000000000 -0400
@@ -169,6 +169,22 @@ out:
 	return 0;
 }
 
+static inline bool can_do_mincore(struct vm_area_struct *vma)
+{
+	if (vma_is_anonymous(vma))
+		return true;
+	if (!vma->vm_file)
+		return false;
+	/*
+	 * Reveal pagecache information only for non-anonymous mappings that
+	 * correspond to the files the calling process could (if tried) open
+	 * for writing; otherwise we'd be including shared non-exclusive
+	 * mappings, which opens a side channel.
+	 */
+	return inode_owner_or_capable(file_inode(vma->vm_file)) ||
+		inode_permission(file_inode(vma->vm_file), MAY_WRITE) == 0;
+}
+
 /*
  * Do a chunk of "sys_mincore()". We've already checked
  * all the arguments, we hold the mmap semaphore: we should
@@ -189,8 +205,13 @@ static long do_mincore(unsigned long add
 	vma = find_vma(current->mm, addr);
 	if (!vma || addr < vma->vm_start)
 		return -ENOMEM;
-	mincore_walk.mm = vma->vm_mm;
 	end = min(vma->vm_end, addr + (pages << PAGE_SHIFT));
+	if (!can_do_mincore(vma)) {
+		unsigned long pages = DIV_ROUND_UP(end - addr, PAGE_SIZE);
+		memset(vec, 1, pages);
+		return pages;
+	}
+	mincore_walk.mm = vma->vm_mm;
 	err = walk_page_range(addr, end, &mincore_walk);
 	if (err < 0)
 		return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/mlock.c linux-libre-5.1.21-gnu/mm/mlock.c
--- linux-libre-5.1-gnu/mm/mlock.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/mlock.c	2019-07-28 02:28:39.000000000 -0400
@@ -636,11 +636,11 @@ static int apply_vma_lock_flags(unsigned
  * is also counted.
  * Return value: previously mlocked page counts
  */
-static int count_mm_mlocked_page_nr(struct mm_struct *mm,
+static unsigned long count_mm_mlocked_page_nr(struct mm_struct *mm,
 		unsigned long start, size_t len)
 {
 	struct vm_area_struct *vma;
-	int count = 0;
+	unsigned long count = 0;
 
 	if (mm == NULL)
 		mm = current->mm;
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/mmap.c linux-libre-5.1.21-gnu/mm/mmap.c
--- linux-libre-5.1-gnu/mm/mmap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/mmap.c	2019-07-28 02:28:39.000000000 -0400
@@ -2735,9 +2735,17 @@ int __do_munmap(struct mm_struct *mm, un
 		return -EINVAL;
 
 	len = PAGE_ALIGN(len);
+	end = start + len;
 	if (len == 0)
 		return -EINVAL;
 
+	/*
+	 * arch_unmap() might do unmaps itself.  It must be called
+	 * and finish any rbtree manipulation before this code
+	 * runs and also starts to manipulate the rbtree.
+	 */
+	arch_unmap(mm, start, end);
+
 	/* Find the first overlapping VMA */
 	vma = find_vma(mm, start);
 	if (!vma)
@@ -2746,7 +2754,6 @@ int __do_munmap(struct mm_struct *mm, un
 	/* we have  start < vma->vm_end  */
 
 	/* if it doesn't overlap, we have nothing.. */
-	end = start + len;
 	if (vma->vm_start >= end)
 		return 0;
 
@@ -2816,12 +2823,6 @@ int __do_munmap(struct mm_struct *mm, un
 	/* Detach vmas from rbtree */
 	detach_vmas_to_be_unmapped(mm, vma, prev, end);
 
-	/*
-	 * mpx unmap needs to be called with mmap_sem held for write.
-	 * It is safe to call it before unmap_region().
-	 */
-	arch_unmap(mm, vma, start, end);
-
 	if (downgrade)
 		downgrade_write(&mm->mmap_sem);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/mmu_gather.c linux-libre-5.1.21-gnu/mm/mmu_gather.c
--- linux-libre-5.1-gnu/mm/mmu_gather.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/mmu_gather.c	2019-07-28 02:28:39.000000000 -0400
@@ -93,8 +93,17 @@ void arch_tlb_finish_mmu(struct mmu_gath
 	struct mmu_gather_batch *batch, *next;
 
 	if (force) {
+		/*
+		 * The aarch64 yields better performance with fullmm by
+		 * avoiding multiple CPUs spamming TLBI messages at the
+		 * same time.
+		 *
+		 * On x86 non-fullmm doesn't yield significant difference
+		 * against fullmm.
+		 */
+		tlb->fullmm = 1;
 		__tlb_reset_range(tlb);
-		__tlb_adjust_range(tlb, start, end - start);
+		tlb->freed_tables = 1;
 	}
 
 	tlb_flush_mmu(tlb);
@@ -249,10 +258,15 @@ void tlb_finish_mmu(struct mmu_gather *t
 {
 	/*
 	 * If there are parallel threads are doing PTE changes on same range
-	 * under non-exclusive lock(e.g., mmap_sem read-side) but defer TLB
-	 * flush by batching, a thread has stable TLB entry can fail to flush
-	 * the TLB by observing pte_none|!pte_dirty, for example so flush TLB
-	 * forcefully if we detect parallel PTE batching threads.
+	 * under non-exclusive lock (e.g., mmap_sem read-side) but defer TLB
+	 * flush by batching, one thread may end up seeing inconsistent PTEs
+	 * and result in having stale TLB entries.  So flush TLB forcefully
+	 * if we detect parallel PTE batching threads.
+	 *
+	 * However, some syscalls, e.g. munmap(), may free page tables, this
+	 * needs force flush everything in the given range. Otherwise this
+	 * may result in having stale TLB entries for some architectures,
+	 * e.g. aarch64, that could specify flush what level TLB.
 	 */
 	bool force = mm_tlb_flush_nested(tlb->mm);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/mprotect.c linux-libre-5.1.21-gnu/mm/mprotect.c
--- linux-libre-5.1-gnu/mm/mprotect.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/mprotect.c	2019-07-28 02:28:39.000000000 -0400
@@ -39,7 +39,6 @@ static unsigned long change_pte_range(st
 		unsigned long addr, unsigned long end, pgprot_t newprot,
 		int dirty_accountable, int prot_numa)
 {
-	struct mm_struct *mm = vma->vm_mm;
 	pte_t *pte, oldpte;
 	spinlock_t *ptl;
 	unsigned long pages = 0;
@@ -136,7 +135,7 @@ static unsigned long change_pte_range(st
 				newpte = swp_entry_to_pte(entry);
 				if (pte_swp_soft_dirty(oldpte))
 					newpte = pte_swp_mksoft_dirty(newpte);
-				set_pte_at(mm, addr, pte, newpte);
+				set_pte_at(vma->vm_mm, addr, pte, newpte);
 
 				pages++;
 			}
@@ -150,7 +149,7 @@ static unsigned long change_pte_range(st
 				 */
 				make_device_private_entry_read(&entry);
 				newpte = swp_entry_to_pte(entry);
-				set_pte_at(mm, addr, pte, newpte);
+				set_pte_at(vma->vm_mm, addr, pte, newpte);
 
 				pages++;
 			}
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/oom_kill.c linux-libre-5.1.21-gnu/mm/oom_kill.c
--- linux-libre-5.1-gnu/mm/oom_kill.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/oom_kill.c	2019-07-28 02:28:39.000000000 -0400
@@ -985,8 +985,7 @@ static void oom_kill_process(struct oom_
 /*
  * Determines whether the kernel must panic because of the panic_on_oom sysctl.
  */
-static void check_panic_on_oom(struct oom_control *oc,
-			       enum oom_constraint constraint)
+static void check_panic_on_oom(struct oom_control *oc)
 {
 	if (likely(!sysctl_panic_on_oom))
 		return;
@@ -996,7 +995,7 @@ static void check_panic_on_oom(struct oo
 		 * does not panic for cpuset, mempolicy, or memcg allocation
 		 * failures.
 		 */
-		if (constraint != CONSTRAINT_NONE)
+		if (oc->constraint != CONSTRAINT_NONE)
 			return;
 	}
 	/* Do not panic for oom kills triggered by sysrq */
@@ -1033,7 +1032,6 @@ EXPORT_SYMBOL_GPL(unregister_oom_notifie
 bool out_of_memory(struct oom_control *oc)
 {
 	unsigned long freed = 0;
-	enum oom_constraint constraint = CONSTRAINT_NONE;
 
 	if (oom_killer_disabled)
 		return false;
@@ -1069,10 +1067,10 @@ bool out_of_memory(struct oom_control *o
 	 * Check if there were limitations on the allocation (only relevant for
 	 * NUMA and memcg) that may require different handling.
 	 */
-	constraint = constrained_alloc(oc);
-	if (constraint != CONSTRAINT_MEMORY_POLICY)
+	oc->constraint = constrained_alloc(oc);
+	if (oc->constraint != CONSTRAINT_MEMORY_POLICY)
 		oc->nodemask = NULL;
-	check_panic_on_oom(oc, constraint);
+	check_panic_on_oom(oc);
 
 	if (!is_memcg_oom(oc) && sysctl_oom_kill_allocating_task &&
 	    current->mm && !oom_unkillable_task(current, NULL, oc->nodemask) &&
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/page_alloc.c linux-libre-5.1.21-gnu/mm/page_alloc.c
--- linux-libre-5.1-gnu/mm/page_alloc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/page_alloc.c	2019-07-28 02:28:39.000000000 -0400
@@ -6244,13 +6244,15 @@ static unsigned long __init zone_spanned
 					unsigned long *zone_end_pfn,
 					unsigned long *ignored)
 {
+	unsigned long zone_low = arch_zone_lowest_possible_pfn[zone_type];
+	unsigned long zone_high = arch_zone_highest_possible_pfn[zone_type];
 	/* When hotadd a new node from cpu_up(), the node should be empty */
 	if (!node_start_pfn && !node_end_pfn)
 		return 0;
 
 	/* Get the start and end of the zone */
-	*zone_start_pfn = arch_zone_lowest_possible_pfn[zone_type];
-	*zone_end_pfn = arch_zone_highest_possible_pfn[zone_type];
+	*zone_start_pfn = clamp(node_start_pfn, zone_low, zone_high);
+	*zone_end_pfn = clamp(node_end_pfn, zone_low, zone_high);
 	adjust_zone_range_for_zone_movable(nid, zone_type,
 				node_start_pfn, node_end_pfn,
 				zone_start_pfn, zone_end_pfn);
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/page_idle.c linux-libre-5.1.21-gnu/mm/page_idle.c
--- linux-libre-5.1-gnu/mm/page_idle.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/page_idle.c	2019-07-28 02:28:39.000000000 -0400
@@ -136,7 +136,7 @@ static ssize_t page_idle_bitmap_read(str
 
 	end_pfn = pfn + count * BITS_PER_BYTE;
 	if (end_pfn > max_pfn)
-		end_pfn = ALIGN(max_pfn, BITMAP_CHUNK_BITS);
+		end_pfn = max_pfn;
 
 	for (; pfn < end_pfn; pfn++) {
 		bit = pfn % BITMAP_CHUNK_BITS;
@@ -181,7 +181,7 @@ static ssize_t page_idle_bitmap_write(st
 
 	end_pfn = pfn + count * BITS_PER_BYTE;
 	if (end_pfn > max_pfn)
-		end_pfn = ALIGN(max_pfn, BITMAP_CHUNK_BITS);
+		end_pfn = max_pfn;
 
 	for (; pfn < end_pfn; pfn++) {
 		bit = pfn % BITMAP_CHUNK_BITS;
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/page_io.c linux-libre-5.1.21-gnu/mm/page_io.c
--- linux-libre-5.1-gnu/mm/page_io.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/page_io.c	2019-07-28 02:28:39.000000000 -0400
@@ -29,10 +29,9 @@
 static struct bio *get_swap_bio(gfp_t gfp_flags,
 				struct page *page, bio_end_io_t end_io)
 {
-	int i, nr = hpage_nr_pages(page);
 	struct bio *bio;
 
-	bio = bio_alloc(gfp_flags, nr);
+	bio = bio_alloc(gfp_flags, 1);
 	if (bio) {
 		struct block_device *bdev;
 
@@ -41,9 +40,7 @@ static struct bio *get_swap_bio(gfp_t gf
 		bio->bi_iter.bi_sector <<= PAGE_SHIFT - 9;
 		bio->bi_end_io = end_io;
 
-		for (i = 0; i < nr; i++)
-			bio_add_page(bio, page + i, PAGE_SIZE, 0);
-		VM_BUG_ON(bio->bi_iter.bi_size != PAGE_SIZE * nr);
+		bio_add_page(bio, page, PAGE_SIZE * hpage_nr_pages(page), 0);
 	}
 	return bio;
 }
@@ -140,8 +137,10 @@ out:
 	unlock_page(page);
 	WRITE_ONCE(bio->bi_private, NULL);
 	bio_put(bio);
-	blk_wake_io_task(waiter);
-	put_task_struct(waiter);
+	if (waiter) {
+		blk_wake_io_task(waiter);
+		put_task_struct(waiter);
+	}
 }
 
 int generic_swapfile_activate(struct swap_info_struct *sis,
@@ -398,11 +397,12 @@ int swap_readpage(struct page *page, boo
 	 * Keep this task valid during swap readpage because the oom killer may
 	 * attempt to access it in the page fault retry time check.
 	 */
-	get_task_struct(current);
-	bio->bi_private = current;
 	bio_set_op_attrs(bio, REQ_OP_READ, 0);
-	if (synchronous)
+	if (synchronous) {
 		bio->bi_opf |= REQ_HIPRI;
+		get_task_struct(current);
+		bio->bi_private = current;
+	}
 	count_vm_event(PSWPIN);
 	bio_get(bio);
 	qc = submit_bio(bio);
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/percpu.c linux-libre-5.1.21-gnu/mm/percpu.c
--- linux-libre-5.1-gnu/mm/percpu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/percpu.c	2019-07-28 02:28:39.000000000 -0400
@@ -988,7 +988,8 @@ static int pcpu_alloc_area(struct pcpu_c
 	/*
 	 * Search to find a fit.
 	 */
-	end = start + alloc_bits + PCPU_BITMAP_BLOCK_BITS;
+	end = min_t(int, start + alloc_bits + PCPU_BITMAP_BLOCK_BITS,
+		    pcpu_chunk_map_bits(chunk));
 	bit_off = bitmap_find_next_zero_area(chunk->alloc_map, end, start,
 					     alloc_bits, align_mask);
 	if (bit_off >= end)
@@ -1738,6 +1739,7 @@ void free_percpu(void __percpu *ptr)
 	struct pcpu_chunk *chunk;
 	unsigned long flags;
 	int off;
+	bool need_balance = false;
 
 	if (!ptr)
 		return;
@@ -1759,7 +1761,7 @@ void free_percpu(void __percpu *ptr)
 
 		list_for_each_entry(pos, &pcpu_slot[pcpu_nr_slots - 1], list)
 			if (pos != chunk) {
-				pcpu_schedule_balance_work();
+				need_balance = true;
 				break;
 			}
 	}
@@ -1767,6 +1769,9 @@ void free_percpu(void __percpu *ptr)
 	trace_percpu_free_percpu(chunk->base_addr, off, ptr);
 
 	spin_unlock_irqrestore(&pcpu_lock, flags);
+
+	if (need_balance)
+		pcpu_schedule_balance_work();
 }
 EXPORT_SYMBOL_GPL(free_percpu);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/rmap.c linux-libre-5.1.21-gnu/mm/rmap.c
--- linux-libre-5.1-gnu/mm/rmap.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/rmap.c	2019-07-28 02:28:39.000000000 -0400
@@ -928,7 +928,7 @@ static bool page_mkclean_one(struct page
 				continue;
 
 			flush_cache_page(vma, address, page_to_pfn(page));
-			entry = pmdp_huge_clear_flush(vma, address, pmd);
+			entry = pmdp_invalidate(vma, address, pmd);
 			entry = pmd_wrprotect(entry);
 			entry = pmd_mkclean(entry);
 			set_pmd_at(vma->vm_mm, address, pmd, entry);
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/slab.c linux-libre-5.1.21-gnu/mm/slab.c
--- linux-libre-5.1-gnu/mm/slab.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/slab.c	2019-07-28 02:28:39.000000000 -0400
@@ -4328,8 +4328,12 @@ static int leaks_show(struct seq_file *m
 	 * whole processing.
 	 */
 	do {
-		set_store_user_clean(cachep);
 		drain_cpu_caches(cachep);
+		/*
+		 * drain_cpu_caches() could make kmemleak_object and
+		 * debug_objects_cache dirty, so reset afterwards.
+		 */
+		set_store_user_clean(cachep);
 
 		x[1] = 0;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/userfaultfd.c linux-libre-5.1.21-gnu/mm/userfaultfd.c
--- linux-libre-5.1-gnu/mm/userfaultfd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/userfaultfd.c	2019-07-28 02:28:39.000000000 -0400
@@ -271,8 +271,7 @@ retry:
 		 */
 		idx = linear_page_index(dst_vma, dst_addr);
 		mapping = dst_vma->vm_file->f_mapping;
-		hash = hugetlb_fault_mutex_hash(h, dst_mm, dst_vma, mapping,
-								idx, dst_addr);
+		hash = hugetlb_fault_mutex_hash(h, mapping, idx, dst_addr);
 		mutex_lock(&hugetlb_fault_mutex_table[hash]);
 
 		err = -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/mm/vmscan.c linux-libre-5.1.21-gnu/mm/vmscan.c
--- linux-libre-5.1-gnu/mm/vmscan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/mm/vmscan.c	2019-07-28 02:28:39.000000000 -0400
@@ -1502,7 +1502,7 @@ unsigned long reclaim_clean_pages_from_l
 
 	list_for_each_entry_safe(page, next, page_list, lru) {
 		if (page_is_file_cache(page) && !PageDirty(page) &&
-		    !__PageMovable(page)) {
+		    !__PageMovable(page) && !PageUnevictable(page)) {
 			ClearPageActive(page);
 			list_move(&page->lru, &clean_pages);
 		}
@@ -2176,7 +2176,7 @@ static void shrink_active_list(unsigned
  *   10TB     320        32GB
  */
 static bool inactive_list_is_low(struct lruvec *lruvec, bool file,
-				 struct scan_control *sc, bool actual_reclaim)
+				 struct scan_control *sc, bool trace)
 {
 	enum lru_list active_lru = file * LRU_FILE + LRU_ACTIVE;
 	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
@@ -2202,7 +2202,7 @@ static bool inactive_list_is_low(struct
 	 * rid of the stale workingset quickly.
 	 */
 	refaults = lruvec_page_state(lruvec, WORKINGSET_ACTIVATE);
-	if (file && actual_reclaim && lruvec->refaults != refaults) {
+	if (file && lruvec->refaults != refaults) {
 		inactive_ratio = 0;
 	} else {
 		gb = (inactive + active) >> (30 - PAGE_SHIFT);
@@ -2212,7 +2212,7 @@ static bool inactive_list_is_low(struct
 			inactive_ratio = 1;
 	}
 
-	if (actual_reclaim)
+	if (trace)
 		trace_mm_vmscan_inactive_list_is_low(pgdat->node_id, sc->reclaim_idx,
 			lruvec_lru_size(lruvec, inactive_lru, MAX_NR_ZONES), inactive,
 			lruvec_lru_size(lruvec, active_lru, MAX_NR_ZONES), active,
@@ -3703,19 +3703,18 @@ out:
 }
 
 /*
- * pgdat->kswapd_classzone_idx is the highest zone index that a recent
- * allocation request woke kswapd for. When kswapd has not woken recently,
- * the value is MAX_NR_ZONES which is not a valid index. This compares a
- * given classzone and returns it or the highest classzone index kswapd
- * was recently woke for.
+ * The pgdat->kswapd_classzone_idx is used to pass the highest zone index to be
+ * reclaimed by kswapd from the waker. If the value is MAX_NR_ZONES which is not
+ * a valid index then either kswapd runs for first time or kswapd couldn't sleep
+ * after previous reclaim attempt (node is still unbalanced). In that case
+ * return the zone index of the previous kswapd reclaim cycle.
  */
 static enum zone_type kswapd_classzone_idx(pg_data_t *pgdat,
-					   enum zone_type classzone_idx)
+					   enum zone_type prev_classzone_idx)
 {
 	if (pgdat->kswapd_classzone_idx == MAX_NR_ZONES)
-		return classzone_idx;
-
-	return max(pgdat->kswapd_classzone_idx, classzone_idx);
+		return prev_classzone_idx;
+	return pgdat->kswapd_classzone_idx;
 }
 
 static void kswapd_try_to_sleep(pg_data_t *pgdat, int alloc_order, int reclaim_order,
@@ -3856,7 +3855,7 @@ kswapd_try_sleep:
 
 		/* Read the new order and classzone_idx */
 		alloc_order = reclaim_order = pgdat->kswapd_order;
-		classzone_idx = kswapd_classzone_idx(pgdat, 0);
+		classzone_idx = kswapd_classzone_idx(pgdat, classzone_idx);
 		pgdat->kswapd_order = 0;
 		pgdat->kswapd_classzone_idx = MAX_NR_ZONES;
 
@@ -3910,8 +3909,12 @@ void wakeup_kswapd(struct zone *zone, gf
 	if (!cpuset_zone_allowed(zone, gfp_flags))
 		return;
 	pgdat = zone->zone_pgdat;
-	pgdat->kswapd_classzone_idx = kswapd_classzone_idx(pgdat,
-							   classzone_idx);
+
+	if (pgdat->kswapd_classzone_idx == MAX_NR_ZONES)
+		pgdat->kswapd_classzone_idx = classzone_idx;
+	else
+		pgdat->kswapd_classzone_idx = max(pgdat->kswapd_classzone_idx,
+						  classzone_idx);
 	pgdat->kswapd_order = max(pgdat->kswapd_order, order);
 	if (!waitqueue_active(&pgdat->kswapd_wait))
 		return;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/8021q/vlan_dev.c linux-libre-5.1.21-gnu/net/8021q/vlan_dev.c
--- linux-libre-5.1-gnu/net/8021q/vlan_dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/8021q/vlan_dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -367,10 +367,12 @@ static int vlan_dev_ioctl(struct net_dev
 	ifrr.ifr_ifru = ifr->ifr_ifru;
 
 	switch (cmd) {
+	case SIOCSHWTSTAMP:
+		if (!net_eq(dev_net(dev), &init_net))
+			break;
 	case SIOCGMIIPHY:
 	case SIOCGMIIREG:
 	case SIOCSMIIREG:
-	case SIOCSHWTSTAMP:
 	case SIOCGHWTSTAMP:
 		if (netif_device_present(real_dev) && ops->ndo_do_ioctl)
 			err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/9p/trans_virtio.c linux-libre-5.1.21-gnu/net/9p/trans_virtio.c
--- linux-libre-5.1-gnu/net/9p/trans_virtio.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/9p/trans_virtio.c	2019-07-28 02:28:39.000000000 -0400
@@ -782,10 +782,16 @@ static struct p9_trans_module p9_virtio_
 /* The standard init function */
 static int __init p9_virtio_init(void)
 {
+	int rc;
+
 	INIT_LIST_HEAD(&virtio_chan_list);
 
 	v9fs_register_trans(&p9_virtio_trans);
-	return register_virtio_driver(&p9_virtio_drv);
+	rc = register_virtio_driver(&p9_virtio_drv);
+	if (rc)
+		v9fs_unregister_trans(&p9_virtio_trans);
+
+	return rc;
 }
 
 static void __exit p9_virtio_cleanup(void)
diff -druNp --no-dereference linux-libre-5.1-gnu/net/9p/trans_xen.c linux-libre-5.1.21-gnu/net/9p/trans_xen.c
--- linux-libre-5.1-gnu/net/9p/trans_xen.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/9p/trans_xen.c	2019-07-28 02:28:39.000000000 -0400
@@ -530,13 +530,19 @@ static struct xenbus_driver xen_9pfs_fro
 
 static int p9_trans_xen_init(void)
 {
+	int rc;
+
 	if (!xen_domain())
 		return -ENODEV;
 
 	pr_info("Initialising Xen transport for 9pfs\n");
 
 	v9fs_register_trans(&p9_xen_trans);
-	return xenbus_register_frontend(&xen_9pfs_front_driver);
+	rc = xenbus_register_frontend(&xen_9pfs_front_driver);
+	if (rc)
+		v9fs_unregister_trans(&p9_xen_trans);
+
+	return rc;
 }
 module_init(p9_trans_xen_init);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ax25/ax25_route.c linux-libre-5.1.21-gnu/net/ax25/ax25_route.c
--- linux-libre-5.1-gnu/net/ax25/ax25_route.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ax25/ax25_route.c	2019-07-28 02:28:39.000000000 -0400
@@ -429,9 +429,11 @@ int ax25_rt_autobind(ax25_cb *ax25, ax25
 	}
 
 	if (ax25->sk != NULL) {
+		local_bh_disable();
 		bh_lock_sock(ax25->sk);
 		sock_reset_flag(ax25->sk, SOCK_ZAPPED);
 		bh_unlock_sock(ax25->sk);
+		local_bh_enable();
 	}
 
 put:
diff -druNp --no-dereference linux-libre-5.1-gnu/net/batman-adv/bat_iv_ogm.c linux-libre-5.1.21-gnu/net/batman-adv/bat_iv_ogm.c
--- linux-libre-5.1-gnu/net/batman-adv/bat_iv_ogm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/batman-adv/bat_iv_ogm.c	2019-07-28 02:28:39.000000000 -0400
@@ -2349,7 +2349,7 @@ batadv_iv_ogm_neigh_is_sob(struct batadv
 	return ret;
 }
 
-static void batadv_iv_iface_activate(struct batadv_hard_iface *hard_iface)
+static void batadv_iv_iface_enabled(struct batadv_hard_iface *hard_iface)
 {
 	/* begin scheduling originator messages on that interface */
 	batadv_iv_ogm_schedule(hard_iface);
@@ -2695,8 +2695,8 @@ unlock:
 static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
 	.name = "BATMAN_IV",
 	.iface = {
-		.activate = batadv_iv_iface_activate,
 		.enable = batadv_iv_ogm_iface_enable,
+		.enabled = batadv_iv_iface_enabled,
 		.disable = batadv_iv_ogm_iface_disable,
 		.update_mac = batadv_iv_ogm_iface_update_mac,
 		.primary_set = batadv_iv_ogm_primary_iface_set,
diff -druNp --no-dereference linux-libre-5.1-gnu/net/batman-adv/distributed-arp-table.c linux-libre-5.1.21-gnu/net/batman-adv/distributed-arp-table.c
--- linux-libre-5.1-gnu/net/batman-adv/distributed-arp-table.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/batman-adv/distributed-arp-table.c	2019-07-28 02:28:39.000000000 -0400
@@ -667,7 +667,7 @@ batadv_dat_select_candidates(struct bata
 }
 
 /**
- * batadv_dat_send_data() - send a payload to the selected candidates
+ * batadv_dat_forward_data() - copy and send payload to the selected candidates
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: payload to send
  * @ip: the DHT key
@@ -680,9 +680,9 @@ batadv_dat_select_candidates(struct bata
  * Return: true if the packet is sent to at least one candidate, false
  * otherwise.
  */
-static bool batadv_dat_send_data(struct batadv_priv *bat_priv,
-				 struct sk_buff *skb, __be32 ip,
-				 unsigned short vid, int packet_subtype)
+static bool batadv_dat_forward_data(struct batadv_priv *bat_priv,
+				    struct sk_buff *skb, __be32 ip,
+				    unsigned short vid, int packet_subtype)
 {
 	int i;
 	bool ret = false;
@@ -1277,8 +1277,8 @@ bool batadv_dat_snoop_outgoing_arp_reque
 		ret = true;
 	} else {
 		/* Send the request to the DHT */
-		ret = batadv_dat_send_data(bat_priv, skb, ip_dst, vid,
-					   BATADV_P_DAT_DHT_GET);
+		ret = batadv_dat_forward_data(bat_priv, skb, ip_dst, vid,
+					      BATADV_P_DAT_DHT_GET);
 	}
 out:
 	if (dat_entry)
@@ -1392,8 +1392,10 @@ void batadv_dat_snoop_outgoing_arp_reply
 	/* Send the ARP reply to the candidates for both the IP addresses that
 	 * the node obtained from the ARP reply
 	 */
-	batadv_dat_send_data(bat_priv, skb, ip_src, vid, BATADV_P_DAT_DHT_PUT);
-	batadv_dat_send_data(bat_priv, skb, ip_dst, vid, BATADV_P_DAT_DHT_PUT);
+	batadv_dat_forward_data(bat_priv, skb, ip_src, vid,
+				BATADV_P_DAT_DHT_PUT);
+	batadv_dat_forward_data(bat_priv, skb, ip_dst, vid,
+				BATADV_P_DAT_DHT_PUT);
 }
 
 /**
@@ -1444,7 +1446,6 @@ bool batadv_dat_snoop_incoming_arp_reply
 			   hw_src, &ip_src, hw_dst, &ip_dst,
 			   dat_entry->mac_addr,	&dat_entry->ip);
 		dropped = true;
-		goto out;
 	}
 
 	/* Update our internal cache with both the IP addresses the node got
@@ -1453,6 +1454,9 @@ bool batadv_dat_snoop_incoming_arp_reply
 	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
 	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
 
+	if (dropped)
+		goto out;
+
 	/* If BLA is enabled, only forward ARP replies if we have claimed the
 	 * source of the ARP reply or if no one else of the same backbone has
 	 * already claimed that client. This prevents that different gateways
@@ -1708,8 +1712,10 @@ static void batadv_dat_put_dhcp(struct b
 	batadv_dat_entry_add(bat_priv, yiaddr, chaddr, vid);
 	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
 
-	batadv_dat_send_data(bat_priv, skb, yiaddr, vid, BATADV_P_DAT_DHT_PUT);
-	batadv_dat_send_data(bat_priv, skb, ip_dst, vid, BATADV_P_DAT_DHT_PUT);
+	batadv_dat_forward_data(bat_priv, skb, yiaddr, vid,
+				BATADV_P_DAT_DHT_PUT);
+	batadv_dat_forward_data(bat_priv, skb, ip_dst, vid,
+				BATADV_P_DAT_DHT_PUT);
 
 	consume_skb(skb);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/batman-adv/hard-interface.c linux-libre-5.1.21-gnu/net/batman-adv/hard-interface.c
--- linux-libre-5.1-gnu/net/batman-adv/hard-interface.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/batman-adv/hard-interface.c	2019-07-28 02:28:39.000000000 -0400
@@ -807,6 +807,9 @@ int batadv_hardif_enable_interface(struc
 
 	batadv_hardif_recalc_extra_skbroom(soft_iface);
 
+	if (bat_priv->algo_ops->iface.enabled)
+		bat_priv->algo_ops->iface.enabled(hard_iface);
+
 out:
 	return 0;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/batman-adv/main.c linux-libre-5.1.21-gnu/net/batman-adv/main.c
--- linux-libre-5.1-gnu/net/batman-adv/main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/batman-adv/main.c	2019-07-28 02:28:39.000000000 -0400
@@ -161,6 +161,7 @@ int batadv_mesh_init(struct net_device *
 	spin_lock_init(&bat_priv->tt.commit_lock);
 	spin_lock_init(&bat_priv->gw.list_lock);
 #ifdef CONFIG_BATMAN_ADV_MCAST
+	spin_lock_init(&bat_priv->mcast.mla_lock);
 	spin_lock_init(&bat_priv->mcast.want_lists_lock);
 #endif
 	spin_lock_init(&bat_priv->tvlv.container_list_lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/batman-adv/multicast.c linux-libre-5.1.21-gnu/net/batman-adv/multicast.c
--- linux-libre-5.1-gnu/net/batman-adv/multicast.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/batman-adv/multicast.c	2019-07-28 02:28:39.000000000 -0400
@@ -325,8 +325,6 @@ static void batadv_mcast_mla_list_free(s
  * translation table except the ones listed in the given mcast_list.
  *
  * If mcast_list is NULL then all are retracted.
- *
- * Do not call outside of the mcast worker! (or cancel mcast worker first)
  */
 static void batadv_mcast_mla_tt_retract(struct batadv_priv *bat_priv,
 					struct hlist_head *mcast_list)
@@ -334,8 +332,6 @@ static void batadv_mcast_mla_tt_retract(
 	struct batadv_hw_addr *mcast_entry;
 	struct hlist_node *tmp;
 
-	WARN_ON(delayed_work_pending(&bat_priv->mcast.work));
-
 	hlist_for_each_entry_safe(mcast_entry, tmp, &bat_priv->mcast.mla_list,
 				  list) {
 		if (mcast_list &&
@@ -359,8 +355,6 @@ static void batadv_mcast_mla_tt_retract(
  *
  * Adds multicast listener announcements from the given mcast_list to the
  * translation table if they have not been added yet.
- *
- * Do not call outside of the mcast worker! (or cancel mcast worker first)
  */
 static void batadv_mcast_mla_tt_add(struct batadv_priv *bat_priv,
 				    struct hlist_head *mcast_list)
@@ -368,8 +362,6 @@ static void batadv_mcast_mla_tt_add(stru
 	struct batadv_hw_addr *mcast_entry;
 	struct hlist_node *tmp;
 
-	WARN_ON(delayed_work_pending(&bat_priv->mcast.work));
-
 	if (!mcast_list)
 		return;
 
@@ -658,7 +650,10 @@ static void batadv_mcast_mla_update(stru
 	priv_mcast = container_of(delayed_work, struct batadv_priv_mcast, work);
 	bat_priv = container_of(priv_mcast, struct batadv_priv, mcast);
 
+	spin_lock(&bat_priv->mcast.mla_lock);
 	__batadv_mcast_mla_update(bat_priv);
+	spin_unlock(&bat_priv->mcast.mla_lock);
+
 	batadv_mcast_start_timer(bat_priv);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/batman-adv/translation-table.c linux-libre-5.1.21-gnu/net/batman-adv/translation-table.c
--- linux-libre-5.1-gnu/net/batman-adv/translation-table.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/batman-adv/translation-table.c	2019-07-28 02:28:39.000000000 -0400
@@ -3826,6 +3826,8 @@ static void batadv_tt_purge(struct work_
  */
 void batadv_tt_free(struct batadv_priv *bat_priv)
 {
+	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_ROAM, 1);
+
 	batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_TT, 1);
 	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_TT, 1);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/batman-adv/types.h linux-libre-5.1.21-gnu/net/batman-adv/types.h
--- linux-libre-5.1-gnu/net/batman-adv/types.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/batman-adv/types.h	2019-07-28 02:28:39.000000000 -0400
@@ -1224,6 +1224,11 @@ struct batadv_priv_mcast {
 	unsigned char bridged:1;
 
 	/**
+	 * @mla_lock: a lock protecting mla_list and mla_flags
+	 */
+	spinlock_t mla_lock;
+
+	/**
 	 * @num_want_all_unsnoopables: number of nodes wanting unsnoopable IP
 	 *  traffic
 	 */
@@ -2130,6 +2135,9 @@ struct batadv_algo_iface_ops {
 	/** @enable: init routing info when hard-interface is enabled */
 	int (*enable)(struct batadv_hard_iface *hard_iface);
 
+	/** @enabled: notification when hard-interface was enabled (optional) */
+	void (*enabled)(struct batadv_hard_iface *hard_iface);
+
 	/** @disable: de-init routing info when hard-interface is disabled */
 	void (*disable)(struct batadv_hard_iface *hard_iface);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/6lowpan.c linux-libre-5.1.21-gnu/net/bluetooth/6lowpan.c
--- linux-libre-5.1-gnu/net/bluetooth/6lowpan.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/6lowpan.c	2019-07-28 02:28:39.000000000 -0400
@@ -187,10 +187,16 @@ static inline struct lowpan_peer *peer_l
 	}
 
 	if (!rt) {
-		nexthop = &lowpan_cb(skb)->gw;
-
-		if (ipv6_addr_any(nexthop))
-			return NULL;
+		if (ipv6_addr_any(&lowpan_cb(skb)->gw)) {
+			/* There is neither route nor gateway,
+			 * probably the destination is a direct peer.
+			 */
+			nexthop = daddr;
+		} else {
+			/* There is a known gateway
+			 */
+			nexthop = &lowpan_cb(skb)->gw;
+		}
 	} else {
 		nexthop = rt6_nexthop(rt, daddr);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/hci_conn.c linux-libre-5.1.21-gnu/net/bluetooth/hci_conn.c
--- linux-libre-5.1-gnu/net/bluetooth/hci_conn.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/hci_conn.c	2019-07-28 02:28:39.000000000 -0400
@@ -1392,8 +1392,16 @@ auth:
 		return 0;
 
 encrypt:
-	if (test_bit(HCI_CONN_ENCRYPT, &conn->flags))
+	if (test_bit(HCI_CONN_ENCRYPT, &conn->flags)) {
+		/* Ensure that the encryption key size has been read,
+		 * otherwise stall the upper layer responses.
+		 */
+		if (!conn->enc_key_size)
+			return 0;
+
+		/* Nothing else needed, all requirements are met */
 		return 1;
+	}
 
 	hci_conn_encrypt(conn);
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/hci_core.c linux-libre-5.1.21-gnu/net/bluetooth/hci_core.c
--- linux-libre-5.1-gnu/net/bluetooth/hci_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/hci_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -4383,6 +4383,9 @@ void hci_req_cmd_complete(struct hci_dev
 		return;
 	}
 
+	/* If we reach this point this event matches the last command sent */
+	hci_dev_clear_flag(hdev, HCI_CMD_PENDING);
+
 	/* If the command succeeded and there's still more commands in
 	 * this request the request is not yet complete.
 	 */
@@ -4493,6 +4496,8 @@ static void hci_cmd_work(struct work_str
 
 		hdev->sent_cmd = skb_clone(skb, GFP_KERNEL);
 		if (hdev->sent_cmd) {
+			if (hci_req_status_pend(hdev))
+				hci_dev_set_flag(hdev, HCI_CMD_PENDING);
 			atomic_dec(&hdev->cmd_cnt);
 			hci_send_frame(hdev, skb);
 			if (test_bit(HCI_RESET, &hdev->flags))
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/hci_event.c linux-libre-5.1.21-gnu/net/bluetooth/hci_event.c
--- linux-libre-5.1-gnu/net/bluetooth/hci_event.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/hci_event.c	2019-07-28 02:28:39.000000000 -0400
@@ -3404,6 +3404,12 @@ static void hci_cmd_complete_evt(struct
 	hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
 			     req_complete_skb);
 
+	if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
+		bt_dev_err(hdev,
+			   "unexpected event for opcode 0x%4.4x", *opcode);
+		return;
+	}
+
 	if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
 		queue_work(hdev->workqueue, &hdev->cmd_work);
 }
@@ -3511,6 +3517,12 @@ static void hci_cmd_status_evt(struct hc
 		hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
 				     req_complete_skb);
 
+	if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
+		bt_dev_err(hdev,
+			   "unexpected event for opcode 0x%4.4x", *opcode);
+		return;
+	}
+
 	if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
 		queue_work(hdev->workqueue, &hdev->cmd_work);
 }
@@ -5576,6 +5588,11 @@ static void hci_le_remote_conn_param_req
 		return send_conn_param_neg_reply(hdev, handle,
 						 HCI_ERROR_UNKNOWN_CONN_ID);
 
+	if (min < hcon->le_conn_min_interval ||
+	    max > hcon->le_conn_max_interval)
+		return send_conn_param_neg_reply(hdev, handle,
+						 HCI_ERROR_INVALID_LL_PARAMS);
+
 	if (hci_check_conn_params(min, max, latency, timeout))
 		return send_conn_param_neg_reply(hdev, handle,
 						 HCI_ERROR_INVALID_LL_PARAMS);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/hci_request.c linux-libre-5.1.21-gnu/net/bluetooth/hci_request.c
--- linux-libre-5.1-gnu/net/bluetooth/hci_request.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/hci_request.c	2019-07-28 02:28:39.000000000 -0400
@@ -46,6 +46,11 @@ void hci_req_purge(struct hci_request *r
 	skb_queue_purge(&req->cmd_q);
 }
 
+bool hci_req_status_pend(struct hci_dev *hdev)
+{
+	return hdev->req_status == HCI_REQ_PEND;
+}
+
 static int req_run(struct hci_request *req, hci_req_complete_t complete,
 		   hci_req_complete_skb_t complete_skb)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/hci_request.h linux-libre-5.1.21-gnu/net/bluetooth/hci_request.h
--- linux-libre-5.1-gnu/net/bluetooth/hci_request.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/hci_request.h	2019-07-28 02:28:39.000000000 -0400
@@ -37,6 +37,7 @@ struct hci_request {
 
 void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
 void hci_req_purge(struct hci_request *req);
+bool hci_req_status_pend(struct hci_dev *hdev);
 int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
 int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
 void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/hidp/core.c linux-libre-5.1.21-gnu/net/bluetooth/hidp/core.c
--- linux-libre-5.1-gnu/net/bluetooth/hidp/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/hidp/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -775,7 +775,7 @@ static int hidp_setup_hid(struct hidp_se
 	hid->version = req->version;
 	hid->country = req->country;
 
-	strncpy(hid->name, req->name, sizeof(hid->name));
+	strscpy(hid->name, req->name, sizeof(hid->name));
 
 	snprintf(hid->phys, sizeof(hid->phys), "%pMR",
 		 &l2cap_pi(session->ctrl_sock->sk)->chan->src);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/hidp/sock.c linux-libre-5.1.21-gnu/net/bluetooth/hidp/sock.c
--- linux-libre-5.1-gnu/net/bluetooth/hidp/sock.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/hidp/sock.c	2019-07-28 02:28:39.000000000 -0400
@@ -75,6 +75,7 @@ static int do_hidp_sock_ioctl(struct soc
 			sockfd_put(csock);
 			return err;
 		}
+		ca.name[sizeof(ca.name)-1] = 0;
 
 		err = hidp_connection_add(&ca, csock, isock);
 		if (!err && copy_to_user(argp, &ca, sizeof(ca)))
@@ -191,6 +192,7 @@ static int hidp_sock_compat_ioctl(struct
 		ca.version = ca32.version;
 		ca.flags = ca32.flags;
 		ca.idle_to = ca32.idle_to;
+		ca32.name[sizeof(ca32.name) - 1] = '\0';
 		memcpy(ca.name, ca32.name, 128);
 
 		csock = sockfd_lookup(ca.ctrl_sock, &err);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/l2cap_core.c linux-libre-5.1.21-gnu/net/bluetooth/l2cap_core.c
--- linux-libre-5.1-gnu/net/bluetooth/l2cap_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/l2cap_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -510,12 +510,12 @@ void l2cap_chan_set_defaults(struct l2ca
 }
 EXPORT_SYMBOL_GPL(l2cap_chan_set_defaults);
 
-static void l2cap_le_flowctl_init(struct l2cap_chan *chan)
+static void l2cap_le_flowctl_init(struct l2cap_chan *chan, u16 tx_credits)
 {
 	chan->sdu = NULL;
 	chan->sdu_last_frag = NULL;
 	chan->sdu_len = 0;
-	chan->tx_credits = 0;
+	chan->tx_credits = tx_credits;
 	/* Derive MPS from connection MTU to stop HCI fragmentation */
 	chan->mps = min_t(u16, chan->imtu, chan->conn->mtu - L2CAP_HDR_SIZE);
 	/* Give enough credits for a full packet */
@@ -1281,7 +1281,7 @@ static void l2cap_le_connect(struct l2ca
 	if (test_and_set_bit(FLAG_LE_CONN_REQ_SENT, &chan->flags))
 		return;
 
-	l2cap_le_flowctl_init(chan);
+	l2cap_le_flowctl_init(chan, 0);
 
 	req.psm     = chan->psm;
 	req.scid    = cpu_to_le16(chan->scid);
@@ -1341,6 +1341,21 @@ static void l2cap_request_info(struct l2
 		       sizeof(req), &req);
 }
 
+static bool l2cap_check_enc_key_size(struct hci_conn *hcon)
+{
+	/* The minimum encryption key size needs to be enforced by the
+	 * host stack before establishing any L2CAP connections. The
+	 * specification in theory allows a minimum of 1, but to align
+	 * BR/EDR and LE transports, a minimum of 7 is chosen.
+	 *
+	 * This check might also be called for unencrypted connections
+	 * that have no key size requirements. Ensure that the link is
+	 * actually encrypted before enforcing a key size.
+	 */
+	return (!test_bit(HCI_CONN_ENCRYPT, &hcon->flags) ||
+		hcon->enc_key_size >= HCI_MIN_ENC_KEY_SIZE);
+}
+
 static void l2cap_do_start(struct l2cap_chan *chan)
 {
 	struct l2cap_conn *conn = chan->conn;
@@ -1358,9 +1373,14 @@ static void l2cap_do_start(struct l2cap_
 	if (!(conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE))
 		return;
 
-	if (l2cap_chan_check_security(chan, true) &&
-	    __l2cap_no_conn_pending(chan))
+	if (!l2cap_chan_check_security(chan, true) ||
+	    !__l2cap_no_conn_pending(chan))
+		return;
+
+	if (l2cap_check_enc_key_size(conn->hcon))
 		l2cap_start_connection(chan);
+	else
+		__set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
 }
 
 static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
@@ -1439,7 +1459,10 @@ static void l2cap_conn_start(struct l2ca
 				continue;
 			}
 
-			l2cap_start_connection(chan);
+			if (l2cap_check_enc_key_size(conn->hcon))
+				l2cap_start_connection(chan);
+			else
+				l2cap_chan_close(chan, ECONNREFUSED);
 
 		} else if (chan->state == BT_CONNECT2) {
 			struct l2cap_conn_rsp rsp;
@@ -4371,6 +4394,12 @@ static inline int l2cap_disconnect_rsp(s
 
 	l2cap_chan_lock(chan);
 
+	if (chan->state != BT_DISCONN) {
+		l2cap_chan_unlock(chan);
+		mutex_unlock(&conn->chan_lock);
+		return 0;
+	}
+
 	l2cap_chan_hold(chan);
 	l2cap_chan_del(chan, 0);
 
@@ -5268,7 +5297,14 @@ static inline int l2cap_conn_param_updat
 
 	memset(&rsp, 0, sizeof(rsp));
 
-	err = hci_check_conn_params(min, max, latency, to_multiplier);
+	if (min < hcon->le_conn_min_interval ||
+	    max > hcon->le_conn_max_interval) {
+		BT_DBG("requested connection interval exceeds current bounds.");
+		err = -EINVAL;
+	} else {
+		err = hci_check_conn_params(min, max, latency, to_multiplier);
+	}
+
 	if (err)
 		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
 	else
@@ -5532,11 +5568,10 @@ static int l2cap_le_connect_req(struct l
 	chan->dcid = scid;
 	chan->omtu = mtu;
 	chan->remote_mps = mps;
-	chan->tx_credits = __le16_to_cpu(req->credits);
 
 	__l2cap_chan_add(conn, chan);
 
-	l2cap_le_flowctl_init(chan);
+	l2cap_le_flowctl_init(chan, __le16_to_cpu(req->credits));
 
 	dcid = chan->scid;
 	credits = chan->rx_credits;
@@ -7491,7 +7526,7 @@ static void l2cap_security_cfm(struct hc
 		}
 
 		if (chan->state == BT_CONNECT) {
-			if (!status)
+			if (!status && l2cap_check_enc_key_size(hcon))
 				l2cap_start_connection(chan);
 			else
 				__set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
@@ -7500,7 +7535,7 @@ static void l2cap_security_cfm(struct hc
 			struct l2cap_conn_rsp rsp;
 			__u16 res, stat;
 
-			if (!status) {
+			if (!status && l2cap_check_enc_key_size(hcon)) {
 				if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 					res = L2CAP_CR_PEND;
 					stat = L2CAP_CS_AUTHOR_PEND;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bluetooth/smp.c linux-libre-5.1.21-gnu/net/bluetooth/smp.c
--- linux-libre-5.1-gnu/net/bluetooth/smp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bluetooth/smp.c	2019-07-28 02:28:39.000000000 -0400
@@ -2580,6 +2580,19 @@ static int smp_cmd_ident_addr_info(struc
 		goto distribute;
 	}
 
+	/* Drop IRK if peer is using identity address during pairing but is
+	 * providing different address as identity information.
+	 *
+	 * Microsoft Surface Precision Mouse is known to have this bug.
+	 */
+	if (hci_is_identity_address(&hcon->dst, hcon->dst_type) &&
+	    (bacmp(&info->bdaddr, &hcon->dst) ||
+	     info->addr_type != hcon->dst_type)) {
+		bt_dev_err(hcon->hdev,
+			   "ignoring IRK with invalid identity address");
+		goto distribute;
+	}
+
 	bacpy(&smp->id_addr, &info->bdaddr);
 	smp->id_addr_type = info->addr_type;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bridge/br_if.c linux-libre-5.1.21-gnu/net/bridge/br_if.c
--- linux-libre-5.1-gnu/net/bridge/br_if.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bridge/br_if.c	2019-07-28 02:28:39.000000000 -0400
@@ -602,13 +602,15 @@ int br_add_if(struct net_bridge *br, str
 	call_netdevice_notifiers(NETDEV_JOIN, dev);
 
 	err = dev_set_allmulti(dev, 1);
-	if (err)
-		goto put_back;
+	if (err) {
+		kfree(p);	/* kobject not yet init'd, manually free */
+		goto err1;
+	}
 
 	err = kobject_init_and_add(&p->kobj, &brport_ktype, &(dev->dev.kobj),
 				   SYSFS_BRIDGE_PORT_ATTR);
 	if (err)
-		goto err1;
+		goto err2;
 
 	err = br_sysfs_addif(p);
 	if (err)
@@ -700,12 +702,9 @@ err3:
 	sysfs_remove_link(br->ifobj, p->dev->name);
 err2:
 	kobject_put(&p->kobj);
-	p = NULL; /* kobject_put frees */
-err1:
 	dev_set_allmulti(dev, -1);
-put_back:
+err1:
 	dev_put(dev);
-	kfree(p);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bridge/br_input.c linux-libre-5.1.21-gnu/net/bridge/br_input.c
--- linux-libre-5.1-gnu/net/bridge/br_input.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bridge/br_input.c	2019-07-28 02:28:39.000000000 -0400
@@ -79,7 +79,6 @@ int br_handle_frame_finish(struct net *n
 	struct net_bridge_fdb_entry *dst = NULL;
 	struct net_bridge_mdb_entry *mdst;
 	bool local_rcv, mcast_hit = false;
-	const unsigned char *dest;
 	struct net_bridge *br;
 	u16 vid = 0;
 
@@ -97,10 +96,9 @@ int br_handle_frame_finish(struct net *n
 		br_fdb_update(br, p, eth_hdr(skb)->h_source, vid, false);
 
 	local_rcv = !!(br->dev->flags & IFF_PROMISC);
-	dest = eth_hdr(skb)->h_dest;
-	if (is_multicast_ether_addr(dest)) {
+	if (is_multicast_ether_addr(eth_hdr(skb)->h_dest)) {
 		/* by definition the broadcast is also a multicast address */
-		if (is_broadcast_ether_addr(dest)) {
+		if (is_broadcast_ether_addr(eth_hdr(skb)->h_dest)) {
 			pkt_type = BR_PKT_BROADCAST;
 			local_rcv = true;
 		} else {
@@ -150,7 +148,7 @@ int br_handle_frame_finish(struct net *n
 		}
 		break;
 	case BR_PKT_UNICAST:
-		dst = br_fdb_find_rcu(br, dest, vid);
+		dst = br_fdb_find_rcu(br, eth_hdr(skb)->h_dest, vid);
 	default:
 		break;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bridge/br_multicast.c linux-libre-5.1.21-gnu/net/bridge/br_multicast.c
--- linux-libre-5.1-gnu/net/bridge/br_multicast.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bridge/br_multicast.c	2019-07-28 02:28:39.000000000 -0400
@@ -934,6 +934,7 @@ static int br_ip4_multicast_igmp3_report
 	int type;
 	int err = 0;
 	__be32 group;
+	u16 nsrcs;
 
 	ih = igmpv3_report_hdr(skb);
 	num = ntohs(ih->ngrec);
@@ -947,8 +948,9 @@ static int br_ip4_multicast_igmp3_report
 		grec = (void *)(skb->data + len - sizeof(*grec));
 		group = grec->grec_mca;
 		type = grec->grec_type;
+		nsrcs = ntohs(grec->grec_nsrcs);
 
-		len += ntohs(grec->grec_nsrcs) * 4;
+		len += nsrcs * 4;
 		if (!ip_mc_may_pull(skb, len))
 			return -EINVAL;
 
@@ -969,7 +971,7 @@ static int br_ip4_multicast_igmp3_report
 		src = eth_hdr(skb)->h_source;
 		if ((type == IGMPV3_CHANGE_TO_INCLUDE ||
 		     type == IGMPV3_MODE_IS_INCLUDE) &&
-		    ntohs(grec->grec_nsrcs) == 0) {
+		    nsrcs == 0) {
 			br_ip4_multicast_leave_group(br, port, group, vid, src);
 		} else {
 			err = br_ip4_multicast_add_group(br, port, group, vid,
@@ -1006,7 +1008,8 @@ static int br_ip6_multicast_mld2_report(
 	len = skb_transport_offset(skb) + sizeof(*icmp6h);
 
 	for (i = 0; i < num; i++) {
-		__be16 *nsrcs, _nsrcs;
+		__be16 *_nsrcs, __nsrcs;
+		u16 nsrcs;
 
 		nsrcs_offset = len + offsetof(struct mld2_grec, grec_nsrcs);
 
@@ -1014,12 +1017,13 @@ static int br_ip6_multicast_mld2_report(
 		    nsrcs_offset + sizeof(_nsrcs))
 			return -EINVAL;
 
-		nsrcs = skb_header_pointer(skb, nsrcs_offset,
-					   sizeof(_nsrcs), &_nsrcs);
-		if (!nsrcs)
+		_nsrcs = skb_header_pointer(skb, nsrcs_offset,
+					    sizeof(__nsrcs), &__nsrcs);
+		if (!_nsrcs)
 			return -EINVAL;
 
-		grec_len = struct_size(grec, grec_src, ntohs(*nsrcs));
+		nsrcs = ntohs(*_nsrcs);
+		grec_len = struct_size(grec, grec_src, nsrcs);
 
 		if (!ipv6_mc_may_pull(skb, len + grec_len))
 			return -EINVAL;
@@ -1044,7 +1048,7 @@ static int br_ip6_multicast_mld2_report(
 		src = eth_hdr(skb)->h_source;
 		if ((grec->grec_type == MLD2_CHANGE_TO_INCLUDE ||
 		     grec->grec_type == MLD2_MODE_IS_INCLUDE) &&
-		    ntohs(*nsrcs) == 0) {
+		    nsrcs == 0) {
 			br_ip6_multicast_leave_group(br, port, &grec->grec_mca,
 						     vid, src);
 		} else {
@@ -1298,7 +1302,6 @@ static int br_ip6_multicast_query(struct
 				  u16 vid)
 {
 	unsigned int transport_len = ipv6_transport_len(skb);
-	const struct ipv6hdr *ip6h = ipv6_hdr(skb);
 	struct mld_msg *mld;
 	struct net_bridge_mdb_entry *mp;
 	struct mld2_query *mld2q;
@@ -1342,7 +1345,7 @@ static int br_ip6_multicast_query(struct
 
 	if (is_general_query) {
 		saddr.proto = htons(ETH_P_IPV6);
-		saddr.u.ip6 = ip6h->saddr;
+		saddr.u.ip6 = ipv6_hdr(skb)->saddr;
 
 		br_multicast_query_received(br, port, &br->ip6_other_query,
 					    &saddr, max_delay);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/bridge/br_stp_bpdu.c linux-libre-5.1.21-gnu/net/bridge/br_stp_bpdu.c
--- linux-libre-5.1-gnu/net/bridge/br_stp_bpdu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/bridge/br_stp_bpdu.c	2019-07-28 02:28:39.000000000 -0400
@@ -147,7 +147,6 @@ void br_send_tcn_bpdu(struct net_bridge_
 void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
 		struct net_device *dev)
 {
-	const unsigned char *dest = eth_hdr(skb)->h_dest;
 	struct net_bridge_port *p;
 	struct net_bridge *br;
 	const unsigned char *buf;
@@ -176,7 +175,7 @@ void br_stp_rcv(const struct stp_proto *
 	if (p->state == BR_STATE_DISABLED)
 		goto out;
 
-	if (!ether_addr_equal(dest, br->group_addr))
+	if (!ether_addr_equal(eth_hdr(skb)->h_dest, br->group_addr))
 		goto out;
 
 	if (p->flags & BR_BPDU_GUARD) {
diff -druNp --no-dereference linux-libre-5.1-gnu/net/can/af_can.c linux-libre-5.1.21-gnu/net/can/af_can.c
--- linux-libre-5.1-gnu/net/can/af_can.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/can/af_can.c	2019-07-28 02:28:39.000000000 -0400
@@ -105,6 +105,7 @@ EXPORT_SYMBOL(can_ioctl);
 static void can_sock_destruct(struct sock *sk)
 {
 	skb_queue_purge(&sk->sk_receive_queue);
+	skb_queue_purge(&sk->sk_error_queue);
 }
 
 static const struct can_proto *can_get_proto(int protocol)
@@ -958,6 +959,8 @@ static struct pernet_operations can_pern
 
 static __init int can_init(void)
 {
+	int err;
+
 	/* check for correct padding to be able to use the structs similarly */
 	BUILD_BUG_ON(offsetof(struct can_frame, can_dlc) !=
 		     offsetof(struct canfd_frame, len) ||
@@ -971,15 +974,31 @@ static __init int can_init(void)
 	if (!rcv_cache)
 		return -ENOMEM;
 
-	register_pernet_subsys(&can_pernet_ops);
+	err = register_pernet_subsys(&can_pernet_ops);
+	if (err)
+		goto out_pernet;
 
 	/* protocol register */
-	sock_register(&can_family_ops);
-	register_netdevice_notifier(&can_netdev_notifier);
+	err = sock_register(&can_family_ops);
+	if (err)
+		goto out_sock;
+	err = register_netdevice_notifier(&can_netdev_notifier);
+	if (err)
+		goto out_notifier;
+
 	dev_add_pack(&can_packet);
 	dev_add_pack(&canfd_packet);
 
 	return 0;
+
+out_notifier:
+	sock_unregister(PF_CAN);
+out_sock:
+	unregister_pernet_subsys(&can_pernet_ops);
+out_pernet:
+	kmem_cache_destroy(rcv_cache);
+
+	return err;
 }
 
 static __exit void can_exit(void)
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/dev.c linux-libre-5.1.21-gnu/net/core/dev.c
--- linux-libre-5.1-gnu/net/core/dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -5804,7 +5804,6 @@ static struct sk_buff *napi_frags_skb(st
 	skb_reset_mac_header(skb);
 	skb_gro_reset_offset(skb);
 
-	eth = skb_gro_header_fast(skb, 0);
 	if (unlikely(skb_gro_header_hard(skb, hlen))) {
 		eth = skb_gro_header_slow(skb, hlen, 0);
 		if (unlikely(!eth)) {
@@ -5814,6 +5813,7 @@ static struct sk_buff *napi_frags_skb(st
 			return NULL;
 		}
 	} else {
+		eth = (const struct ethhdr *)skb->data;
 		gro_pull_from_frag0(skb, hlen);
 		NAPI_GRO_CB(skb)->frag0 += hlen;
 		NAPI_GRO_CB(skb)->frag0_len -= hlen;
@@ -8911,7 +8911,7 @@ static void netdev_wait_allrefs(struct n
 
 		refcnt = netdev_refcnt_read(dev);
 
-		if (time_after(jiffies, warning_time + 10 * HZ)) {
+		if (refcnt && time_after(jiffies, warning_time + 10 * HZ)) {
 			pr_emerg("unregister_netdevice: waiting for %s to become free. Usage count = %d\n",
 				 dev->name, refcnt);
 			warning_time = jiffies;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/ethtool.c linux-libre-5.1.21-gnu/net/core/ethtool.c
--- linux-libre-5.1-gnu/net/core/ethtool.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/ethtool.c	2019-07-28 02:28:39.000000000 -0400
@@ -1358,13 +1358,16 @@ static int ethtool_get_regs(struct net_d
 	if (!regbuf)
 		return -ENOMEM;
 
+	if (regs.len < reglen)
+		reglen = regs.len;
+
 	ops->get_regs(dev, &regs, regbuf);
 
 	ret = -EFAULT;
 	if (copy_to_user(useraddr, &regs, sizeof(regs)))
 		goto out;
 	useraddr += offsetof(struct ethtool_regs, data);
-	if (regbuf && copy_to_user(useraddr, regbuf, regs.len))
+	if (copy_to_user(useraddr, regbuf, reglen))
 		goto out;
 	ret = 0;
 
@@ -3008,21 +3011,30 @@ ethtool_rx_flow_rule_create(const struct
 		const struct ethtool_flow_ext *ext_h_spec = &fs->h_ext;
 		const struct ethtool_flow_ext *ext_m_spec = &fs->m_ext;
 
-		if (ext_m_spec->vlan_etype &&
-		    ext_m_spec->vlan_tci) {
+		if (ext_m_spec->vlan_etype) {
 			match->key.vlan.vlan_tpid = ext_h_spec->vlan_etype;
 			match->mask.vlan.vlan_tpid = ext_m_spec->vlan_etype;
+		}
 
+		if (ext_m_spec->vlan_tci) {
 			match->key.vlan.vlan_id =
 				ntohs(ext_h_spec->vlan_tci) & 0x0fff;
 			match->mask.vlan.vlan_id =
 				ntohs(ext_m_spec->vlan_tci) & 0x0fff;
 
+			match->key.vlan.vlan_dei =
+				!!(ext_h_spec->vlan_tci & htons(0x1000));
+			match->mask.vlan.vlan_dei =
+				!!(ext_m_spec->vlan_tci & htons(0x1000));
+
 			match->key.vlan.vlan_priority =
 				(ntohs(ext_h_spec->vlan_tci) & 0xe000) >> 13;
 			match->mask.vlan.vlan_priority =
 				(ntohs(ext_m_spec->vlan_tci) & 0xe000) >> 13;
+		}
 
+		if (ext_m_spec->vlan_etype ||
+		    ext_m_spec->vlan_tci) {
 			match->dissector.used_keys |=
 				BIT(FLOW_DISSECTOR_KEY_VLAN);
 			match->dissector.offset[FLOW_DISSECTOR_KEY_VLAN] =
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/filter.c linux-libre-5.1.21-gnu/net/core/filter.c
--- linux-libre-5.1-gnu/net/core/filter.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/filter.c	2019-07-28 02:28:39.000000000 -0400
@@ -4211,7 +4211,7 @@ BPF_CALL_5(bpf_setsockopt, struct bpf_so
 						    TCP_CA_NAME_MAX-1));
 			name[TCP_CA_NAME_MAX-1] = 0;
 			ret = tcp_set_congestion_control(sk, name, false,
-							 reinit);
+							 reinit, true);
 		} else {
 			struct tcp_sock *tp = tcp_sk(sk);
 
@@ -6420,6 +6420,7 @@ static bool sock_addr_is_valid_access(in
 		case BPF_CGROUP_INET4_BIND:
 		case BPF_CGROUP_INET4_CONNECT:
 		case BPF_CGROUP_UDP4_SENDMSG:
+		case BPF_CGROUP_UDP4_RECVMSG:
 			break;
 		default:
 			return false;
@@ -6430,6 +6431,7 @@ static bool sock_addr_is_valid_access(in
 		case BPF_CGROUP_INET6_BIND:
 		case BPF_CGROUP_INET6_CONNECT:
 		case BPF_CGROUP_UDP6_SENDMSG:
+		case BPF_CGROUP_UDP6_RECVMSG:
 			break;
 		default:
 			return false;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/flow_dissector.c linux-libre-5.1.21-gnu/net/core/flow_dissector.c
--- linux-libre-5.1-gnu/net/core/flow_dissector.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/flow_dissector.c	2019-07-28 02:28:39.000000000 -0400
@@ -712,7 +712,10 @@ bool __skb_flow_bpf_dissect(struct bpf_p
 	flow_keys->thoff = flow_keys->nhoff;
 
 	bpf_compute_data_pointers((struct sk_buff *)skb);
+
+	preempt_disable();
 	result = BPF_PROG_RUN(prog, skb);
+	preempt_enable();
 
 	/* Restore state */
 	memcpy(cb, &cb_saved, sizeof(cb_saved));
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/flow_offload.c linux-libre-5.1.21-gnu/net/core/flow_offload.c
--- linux-libre-5.1-gnu/net/core/flow_offload.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/flow_offload.c	2019-07-28 02:28:39.000000000 -0400
@@ -54,6 +54,13 @@ void flow_rule_match_vlan(const struct f
 }
 EXPORT_SYMBOL(flow_rule_match_vlan);
 
+void flow_rule_match_cvlan(const struct flow_rule *rule,
+			   struct flow_match_vlan *out)
+{
+	FLOW_DISSECTOR_MATCH(rule, FLOW_DISSECTOR_KEY_CVLAN, out);
+}
+EXPORT_SYMBOL(flow_rule_match_cvlan);
+
 void flow_rule_match_ipv4_addrs(const struct flow_rule *rule,
 				struct flow_match_ipv4_addrs *out)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/neighbour.c linux-libre-5.1.21-gnu/net/core/neighbour.c
--- linux-libre-5.1-gnu/net/core/neighbour.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/neighbour.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,6 +31,7 @@
 #include <linux/times.h>
 #include <net/net_namespace.h>
 #include <net/neighbour.h>
+#include <net/arp.h>
 #include <net/dst.h>
 #include <net/sock.h>
 #include <net/netevent.h>
@@ -663,6 +664,8 @@ out:
 out_tbl_unlock:
 	write_unlock_bh(&tbl->lock);
 out_neigh_release:
+	if (!exempt_from_gc)
+		atomic_dec(&tbl->gc_entries);
 	neigh_release(n);
 	goto out;
 }
@@ -1123,6 +1126,7 @@ int __neigh_event_send(struct neighbour
 
 			atomic_set(&neigh->probes,
 				   NEIGH_VAR(neigh->parms, UCAST_PROBES));
+			neigh_del_timer(neigh);
 			neigh->nud_state     = NUD_INCOMPLETE;
 			neigh->updated = now;
 			next = now + max(NEIGH_VAR(neigh->parms, RETRANS_TIME),
@@ -1139,6 +1143,7 @@ int __neigh_event_send(struct neighbour
 		}
 	} else if (neigh->nud_state & NUD_STALE) {
 		neigh_dbg(2, "neigh %p is delayed\n", neigh);
+		neigh_del_timer(neigh);
 		neigh->nud_state = NUD_DELAY;
 		neigh->updated = jiffies;
 		neigh_add_timer(neigh, jiffies +
@@ -2982,7 +2987,13 @@ int neigh_xmit(int index, struct net_dev
 		if (!tbl)
 			goto out;
 		rcu_read_lock_bh();
-		neigh = __neigh_lookup_noref(tbl, addr, dev);
+		if (index == NEIGH_ARP_TABLE) {
+			u32 key = *((u32 *)addr);
+
+			neigh = __ipv4_neigh_lookup_noref(dev, key);
+		} else {
+			neigh = __neigh_lookup_noref(tbl, addr, dev);
+		}
 		if (!neigh)
 			neigh = __neigh_create(tbl, addr, dev, false);
 		err = PTR_ERR(neigh);
@@ -3190,6 +3201,7 @@ static void *neigh_get_idx_any(struct se
 }
 
 void *neigh_seq_start(struct seq_file *seq, loff_t *pos, struct neigh_table *tbl, unsigned int neigh_seq_flags)
+	__acquires(tbl->lock)
 	__acquires(rcu_bh)
 {
 	struct neigh_seq_state *state = seq->private;
@@ -3200,6 +3212,7 @@ void *neigh_seq_start(struct seq_file *s
 
 	rcu_read_lock_bh();
 	state->nht = rcu_dereference_bh(tbl->nht);
+	read_lock(&tbl->lock);
 
 	return *pos ? neigh_get_idx_any(seq, pos) : SEQ_START_TOKEN;
 }
@@ -3233,8 +3246,13 @@ out:
 EXPORT_SYMBOL(neigh_seq_next);
 
 void neigh_seq_stop(struct seq_file *seq, void *v)
+	__releases(tbl->lock)
 	__releases(rcu_bh)
 {
+	struct neigh_seq_state *state = seq->private;
+	struct neigh_table *tbl = state->tbl;
+
+	read_unlock(&tbl->lock);
 	rcu_read_unlock_bh();
 }
 EXPORT_SYMBOL(neigh_seq_stop);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/pktgen.c linux-libre-5.1.21-gnu/net/core/pktgen.c
--- linux-libre-5.1-gnu/net/core/pktgen.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/pktgen.c	2019-07-28 02:28:39.000000000 -0400
@@ -3066,7 +3066,13 @@ static int pktgen_wait_thread_run(struct
 {
 	while (thread_is_running(t)) {
 
+		/* note: 't' will still be around even after the unlock/lock
+		 * cycle because pktgen_thread threads are only cleared at
+		 * net exit
+		 */
+		mutex_unlock(&pktgen_thread_lock);
 		msleep_interruptible(100);
+		mutex_lock(&pktgen_thread_lock);
 
 		if (signal_pending(current))
 			goto signal;
@@ -3081,6 +3087,10 @@ static int pktgen_wait_all_threads_run(s
 	struct pktgen_thread *t;
 	int sig = 1;
 
+	/* prevent from racing with rmmod */
+	if (!try_module_get(THIS_MODULE))
+		return sig;
+
 	mutex_lock(&pktgen_thread_lock);
 
 	list_for_each_entry(t, &pn->pktgen_threads, th_list) {
@@ -3094,6 +3104,7 @@ static int pktgen_wait_all_threads_run(s
 			t->control |= (T_STOP);
 
 	mutex_unlock(&pktgen_thread_lock);
+	module_put(THIS_MODULE);
 	return sig;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/rtnetlink.c linux-libre-5.1.21-gnu/net/core/rtnetlink.c
--- linux-libre-5.1-gnu/net/core/rtnetlink.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/rtnetlink.c	2019-07-28 02:28:39.000000000 -0400
@@ -1496,14 +1496,15 @@ static int put_master_ifindex(struct sk_
 	return ret;
 }
 
-static int nla_put_iflink(struct sk_buff *skb, const struct net_device *dev)
+static int nla_put_iflink(struct sk_buff *skb, const struct net_device *dev,
+			  bool force)
 {
 	int ifindex = dev_get_iflink(dev);
 
-	if (dev->ifindex == ifindex)
-		return 0;
+	if (force || dev->ifindex != ifindex)
+		return nla_put_u32(skb, IFLA_LINK, ifindex);
 
-	return nla_put_u32(skb, IFLA_LINK, ifindex);
+	return 0;
 }
 
 static noinline_for_stack int nla_put_ifalias(struct sk_buff *skb,
@@ -1520,6 +1521,8 @@ static int rtnl_fill_link_netnsid(struct
 				  const struct net_device *dev,
 				  struct net *src_net)
 {
+	bool put_iflink = false;
+
 	if (dev->rtnl_link_ops && dev->rtnl_link_ops->get_link_net) {
 		struct net *link_net = dev->rtnl_link_ops->get_link_net(dev);
 
@@ -1528,10 +1531,12 @@ static int rtnl_fill_link_netnsid(struct
 
 			if (nla_put_s32(skb, IFLA_LINK_NETNSID, id))
 				return -EMSGSIZE;
+
+			put_iflink = true;
 		}
 	}
 
-	return 0;
+	return nla_put_iflink(skb, dev, put_iflink);
 }
 
 static int rtnl_fill_link_af(struct sk_buff *skb,
@@ -1617,7 +1622,6 @@ static int rtnl_fill_ifinfo(struct sk_bu
 #ifdef CONFIG_RPS
 	    nla_put_u32(skb, IFLA_NUM_RX_QUEUES, dev->num_rx_queues) ||
 #endif
-	    nla_put_iflink(skb, dev) ||
 	    put_master_ifindex(skb, dev) ||
 	    nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
 	    (dev->qdisc &&
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/skbuff.c linux-libre-5.1.21-gnu/net/core/skbuff.c
--- linux-libre-5.1-gnu/net/core/skbuff.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/skbuff.c	2019-07-28 02:28:39.000000000 -0400
@@ -1001,7 +1001,11 @@ struct ubuf_info *sock_zerocopy_realloc(
 			uarg->len++;
 			uarg->bytelen = bytelen;
 			atomic_set(&sk->sk_zckey, ++next);
-			sock_zerocopy_get(uarg);
+
+			/* no extra ref when appending to datagram (MSG_MORE) */
+			if (sk->sk_type == SOCK_STREAM)
+				sock_zerocopy_get(uarg);
+
 			return uarg;
 		}
 	}
@@ -2305,6 +2309,7 @@ do_frag_list:
 		kv.iov_base = skb->data + offset;
 		kv.iov_len = slen;
 		memset(&msg, 0, sizeof(msg));
+		msg.msg_flags = MSG_DONTWAIT;
 
 		ret = kernel_sendmsg_locked(sk, &msg, &kv, 1, slen);
 		if (ret <= 0)
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/skmsg.c linux-libre-5.1.21-gnu/net/core/skmsg.c
--- linux-libre-5.1-gnu/net/core/skmsg.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/skmsg.c	2019-07-28 02:28:39.000000000 -0400
@@ -411,6 +411,7 @@ static int sk_psock_skb_ingress(struct s
 	sk_mem_charge(sk, skb->len);
 	copied = skb->len;
 	msg->sg.start = 0;
+	msg->sg.size = copied;
 	msg->sg.end = num_sge == MAX_MSG_FRAGS ? 0 : num_sge;
 	msg->skb = skb;
 
@@ -554,8 +555,10 @@ static void sk_psock_destroy_deferred(st
 	struct sk_psock *psock = container_of(gc, struct sk_psock, gc);
 
 	/* No sk_callback_lock since already detached. */
-	strp_stop(&psock->parser.strp);
-	strp_done(&psock->parser.strp);
+
+	/* Parser has been stopped */
+	if (psock->progs.skb_parser)
+		strp_done(&psock->parser.strp);
 
 	cancel_work_sync(&psock->work);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/core/sock.c linux-libre-5.1.21-gnu/net/core/sock.c
--- linux-libre-5.1-gnu/net/core/sock.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/core/sock.c	2019-07-28 02:28:39.000000000 -0400
@@ -1482,9 +1482,6 @@ int sock_getsockopt(struct socket *sock,
 	{
 		u32 meminfo[SK_MEMINFO_VARS];
 
-		if (get_user(len, optlen))
-			return -EFAULT;
-
 		sk_get_meminfo(sk, meminfo);
 
 		len = min_t(unsigned int, len, sizeof(meminfo));
diff -druNp --no-dereference linux-libre-5.1-gnu/net/dsa/dsa.c linux-libre-5.1.21-gnu/net/dsa/dsa.c
--- linux-libre-5.1-gnu/net/dsa/dsa.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/dsa/dsa.c	2019-07-28 02:28:39.000000000 -0400
@@ -344,15 +344,22 @@ static int __init dsa_init_module(void)
 
 	rc = dsa_slave_register_notifier();
 	if (rc)
-		return rc;
+		goto register_notifier_fail;
 
 	rc = dsa_legacy_register();
 	if (rc)
-		return rc;
+		goto legacy_register_fail;
 
 	dev_add_pack(&dsa_pack_type);
 
 	return 0;
+
+legacy_register_fail:
+	dsa_slave_unregister_notifier();
+register_notifier_fail:
+	destroy_workqueue(dsa_owq);
+
+	return rc;
 }
 module_init(dsa_init_module);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/devinet.c linux-libre-5.1.21-gnu/net/ipv4/devinet.c
--- linux-libre-5.1-gnu/net/ipv4/devinet.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/devinet.c	2019-07-28 02:28:39.000000000 -0400
@@ -66,6 +66,11 @@
 #include <net/net_namespace.h>
 #include <net/addrconf.h>
 
+#define IPV6ONLY_FLAGS	\
+		(IFA_F_NODAD | IFA_F_OPTIMISTIC | IFA_F_DADFAILED | \
+		 IFA_F_HOMEADDRESS | IFA_F_TENTATIVE | \
+		 IFA_F_MANAGETEMPADDR | IFA_F_STABLE_PRIVACY)
+
 static struct ipv4_devconf ipv4_devconf = {
 	.data = {
 		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
@@ -472,6 +477,9 @@ static int __inet_insert_ifa(struct in_i
 	ifa->ifa_flags &= ~IFA_F_SECONDARY;
 	last_primary = &in_dev->ifa_list;
 
+	/* Don't set IPv6 only flags to IPv4 addresses */
+	ifa->ifa_flags &= ~IPV6ONLY_FLAGS;
+
 	for (ifap = &in_dev->ifa_list; (ifa1 = *ifap) != NULL;
 	     ifap = &ifa1->ifa_next) {
 		if (!(ifa1->ifa_flags & IFA_F_SECONDARY) &&
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/igmp.c linux-libre-5.1.21-gnu/net/ipv4/igmp.c
--- linux-libre-5.1-gnu/net/ipv4/igmp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/igmp.c	2019-07-28 02:28:39.000000000 -0400
@@ -188,6 +188,17 @@ static void ip_ma_put(struct ip_mc_list
 	     pmc != NULL;					\
 	     pmc = rtnl_dereference(pmc->next_rcu))
 
+static void ip_sf_list_clear_all(struct ip_sf_list *psf)
+{
+	struct ip_sf_list *next;
+
+	while (psf) {
+		next = psf->sf_next;
+		kfree(psf);
+		psf = next;
+	}
+}
+
 #ifdef CONFIG_IP_MULTICAST
 
 /*
@@ -633,6 +644,13 @@ static void igmpv3_clear_zeros(struct ip
 	}
 }
 
+static void kfree_pmc(struct ip_mc_list *pmc)
+{
+	ip_sf_list_clear_all(pmc->sources);
+	ip_sf_list_clear_all(pmc->tomb);
+	kfree(pmc);
+}
+
 static void igmpv3_send_cr(struct in_device *in_dev)
 {
 	struct ip_mc_list *pmc, *pmc_prev, *pmc_next;
@@ -669,7 +687,7 @@ static void igmpv3_send_cr(struct in_dev
 			else
 				in_dev->mc_tomb = pmc_next;
 			in_dev_put(pmc->interface);
-			kfree(pmc);
+			kfree_pmc(pmc);
 		} else
 			pmc_prev = pmc;
 	}
@@ -1214,15 +1232,15 @@ static void igmpv3_del_delrec(struct in_
 	if (pmc) {
 		im->interface = pmc->interface;
 		if (im->sfmode == MCAST_INCLUDE) {
-			im->tomb = pmc->tomb;
-			im->sources = pmc->sources;
+			swap(im->tomb, pmc->tomb);
+			swap(im->sources, pmc->sources);
 			for (psf = im->sources; psf; psf = psf->sf_next)
 				psf->sf_crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
 		} else {
 			im->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
 		}
 		in_dev_put(pmc->interface);
-		kfree(pmc);
+		kfree_pmc(pmc);
 	}
 	spin_unlock_bh(&im->lock);
 }
@@ -1243,21 +1261,18 @@ static void igmpv3_clear_delrec(struct i
 		nextpmc = pmc->next;
 		ip_mc_clear_src(pmc);
 		in_dev_put(pmc->interface);
-		kfree(pmc);
+		kfree_pmc(pmc);
 	}
 	/* clear dead sources, too */
 	rcu_read_lock();
 	for_each_pmc_rcu(in_dev, pmc) {
-		struct ip_sf_list *psf, *psf_next;
+		struct ip_sf_list *psf;
 
 		spin_lock_bh(&pmc->lock);
 		psf = pmc->tomb;
 		pmc->tomb = NULL;
 		spin_unlock_bh(&pmc->lock);
-		for (; psf; psf = psf_next) {
-			psf_next = psf->sf_next;
-			kfree(psf);
-		}
+		ip_sf_list_clear_all(psf);
 	}
 	rcu_read_unlock();
 }
@@ -2123,7 +2138,7 @@ static int ip_mc_add_src(struct in_devic
 
 static void ip_mc_clear_src(struct ip_mc_list *pmc)
 {
-	struct ip_sf_list *psf, *nextpsf, *tomb, *sources;
+	struct ip_sf_list *tomb, *sources;
 
 	spin_lock_bh(&pmc->lock);
 	tomb = pmc->tomb;
@@ -2135,14 +2150,8 @@ static void ip_mc_clear_src(struct ip_mc
 	pmc->sfcount[MCAST_EXCLUDE] = 1;
 	spin_unlock_bh(&pmc->lock);
 
-	for (psf = tomb; psf; psf = nextpsf) {
-		nextpsf = psf->sf_next;
-		kfree(psf);
-	}
-	for (psf = sources; psf; psf = nextpsf) {
-		nextpsf = psf->sf_next;
-		kfree(psf);
-	}
+	ip_sf_list_clear_all(tomb);
+	ip_sf_list_clear_all(sources);
 }
 
 /* Join a multicast group
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/ipmr_base.c linux-libre-5.1.21-gnu/net/ipv4/ipmr_base.c
--- linux-libre-5.1-gnu/net/ipv4/ipmr_base.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/ipmr_base.c	2019-07-28 02:28:39.000000000 -0400
@@ -335,8 +335,6 @@ next_entry2:
 	}
 	spin_unlock_bh(lock);
 	err = 0;
-	e = 0;
-
 out:
 	cb->args[1] = e;
 	return err;
@@ -374,6 +372,7 @@ int mr_rtm_dumproute(struct sk_buff *skb
 		err = mr_table_dump(mrt, skb, cb, fill, lock, filter);
 		if (err < 0)
 			break;
+		cb->args[1] = 0;
 next_table:
 		t++;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/ip_output.c linux-libre-5.1.21-gnu/net/ipv4/ip_output.c
--- linux-libre-5.1-gnu/net/ipv4/ip_output.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/ip_output.c	2019-07-28 02:28:39.000000000 -0400
@@ -883,7 +883,7 @@ static int __ip_append_data(struct sock
 	int csummode = CHECKSUM_NONE;
 	struct rtable *rt = (struct rtable *)cork->dst;
 	unsigned int wmem_alloc_delta = 0;
-	bool paged, extra_uref;
+	bool paged, extra_uref = false;
 	u32 tskey = 0;
 
 	skb = skb_peek_tail(queue);
@@ -923,7 +923,7 @@ static int __ip_append_data(struct sock
 		uarg = sock_zerocopy_realloc(sk, length, skb_zcopy(skb));
 		if (!uarg)
 			return -ENOBUFS;
-		extra_uref = true;
+		extra_uref = !skb_zcopy(skb);	/* only ref on new uarg */
 		if (rt->dst.dev->features & NETIF_F_SG &&
 		    csummode == CHECKSUM_PARTIAL) {
 			paged = true;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/netfilter/nft_fib_ipv4.c linux-libre-5.1.21-gnu/net/ipv4/netfilter/nft_fib_ipv4.c
--- linux-libre-5.1-gnu/net/ipv4/netfilter/nft_fib_ipv4.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/netfilter/nft_fib_ipv4.c	2019-07-28 02:28:39.000000000 -0400
@@ -58,11 +58,6 @@ void nft_fib4_eval_type(const struct nft
 }
 EXPORT_SYMBOL_GPL(nft_fib4_eval_type);
 
-static int get_ifindex(const struct net_device *dev)
-{
-	return dev ? dev->ifindex : 0;
-}
-
 void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
 		   const struct nft_pktinfo *pkt)
 {
@@ -94,8 +89,7 @@ void nft_fib4_eval(const struct nft_expr
 
 	if (nft_hook(pkt) == NF_INET_PRE_ROUTING &&
 	    nft_fib_is_loopback(pkt->skb, nft_in(pkt))) {
-		nft_fib_store_result(dest, priv, pkt,
-				     nft_in(pkt)->ifindex);
+		nft_fib_store_result(dest, priv, nft_in(pkt));
 		return;
 	}
 
@@ -108,8 +102,7 @@ void nft_fib4_eval(const struct nft_expr
 	if (ipv4_is_zeronet(iph->saddr)) {
 		if (ipv4_is_lbcast(iph->daddr) ||
 		    ipv4_is_local_multicast(iph->daddr)) {
-			nft_fib_store_result(dest, priv, pkt,
-					     get_ifindex(pkt->skb->dev));
+			nft_fib_store_result(dest, priv, pkt->skb->dev);
 			return;
 		}
 	}
@@ -150,17 +143,7 @@ void nft_fib4_eval(const struct nft_expr
 		found = oif;
 	}
 
-	switch (priv->result) {
-	case NFT_FIB_RESULT_OIF:
-		*dest = found->ifindex;
-		break;
-	case NFT_FIB_RESULT_OIFNAME:
-		strncpy((char *)dest, found->name, IFNAMSIZ);
-		break;
-	default:
-		WARN_ON_ONCE(1);
-		break;
-	}
+	nft_fib_store_result(dest, priv, found);
 }
 EXPORT_SYMBOL_GPL(nft_fib4_eval);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/proc.c linux-libre-5.1.21-gnu/net/ipv4/proc.c
--- linux-libre-5.1-gnu/net/ipv4/proc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/proc.c	2019-07-28 02:28:39.000000000 -0400
@@ -291,6 +291,7 @@ static const struct snmp_mib snmp4_net_l
 	SNMP_MIB_ITEM("TCPAckCompressed", LINUX_MIB_TCPACKCOMPRESSED),
 	SNMP_MIB_ITEM("TCPZeroWindowDrop", LINUX_MIB_TCPZEROWINDOWDROP),
 	SNMP_MIB_ITEM("TCPRcvQDrop", LINUX_MIB_TCPRCVQDROP),
+	SNMP_MIB_ITEM("TCPWqueueTooBig", LINUX_MIB_TCPWQUEUETOOBIG),
 	SNMP_MIB_SENTINEL
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/raw.c linux-libre-5.1.21-gnu/net/ipv4/raw.c
--- linux-libre-5.1-gnu/net/ipv4/raw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/raw.c	2019-07-28 02:28:39.000000000 -0400
@@ -173,6 +173,7 @@ static int icmp_filter(const struct sock
 static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash)
 {
 	int sdif = inet_sdif(skb);
+	int dif = inet_iif(skb);
 	struct sock *sk;
 	struct hlist_head *head;
 	int delivered = 0;
@@ -185,8 +186,7 @@ static int raw_v4_input(struct sk_buff *
 
 	net = dev_net(skb->dev);
 	sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol,
-			     iph->saddr, iph->daddr,
-			     skb->dev->ifindex, sdif);
+			     iph->saddr, iph->daddr, dif, sdif);
 
 	while (sk) {
 		delivered = 1;
@@ -201,7 +201,7 @@ static int raw_v4_input(struct sk_buff *
 		}
 		sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol,
 				     iph->saddr, iph->daddr,
-				     skb->dev->ifindex, sdif);
+				     dif, sdif);
 	}
 out:
 	read_unlock(&raw_v4_hashinfo.lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/route.c linux-libre-5.1.21-gnu/net/ipv4/route.c
--- linux-libre-5.1-gnu/net/ipv4/route.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/route.c	2019-07-28 02:28:39.000000000 -0400
@@ -500,15 +500,17 @@ EXPORT_SYMBOL(ip_idents_reserve);
 
 void __ip_select_ident(struct net *net, struct iphdr *iph, int segs)
 {
-	static u32 ip_idents_hashrnd __read_mostly;
 	u32 hash, id;
 
-	net_get_random_once(&ip_idents_hashrnd, sizeof(ip_idents_hashrnd));
+	/* Note the following code is not safe, but this is okay. */
+	if (unlikely(siphash_key_is_zero(&net->ipv4.ip_id_key)))
+		get_random_bytes(&net->ipv4.ip_id_key,
+				 sizeof(net->ipv4.ip_id_key));
 
-	hash = jhash_3words((__force u32)iph->daddr,
+	hash = siphash_3u32((__force u32)iph->daddr,
 			    (__force u32)iph->saddr,
-			    iph->protocol ^ net_hash_mix(net),
-			    ip_idents_hashrnd);
+			    iph->protocol,
+			    &net->ipv4.ip_id_key);
 	id = ip_idents_reserve(hash, segs);
 	iph->id = htons(id);
 }
@@ -1952,7 +1954,7 @@ static int ip_route_input_slow(struct sk
 	u32		itag = 0;
 	struct rtable	*rth;
 	struct flowi4	fl4;
-	bool do_cache;
+	bool do_cache = true;
 
 	/* IP on this device is disabled. */
 
@@ -2029,6 +2031,9 @@ static int ip_route_input_slow(struct sk
 	if (res->type == RTN_BROADCAST) {
 		if (IN_DEV_BFORWARD(in_dev))
 			goto make_route;
+		/* not do cache if bc_forwarding is enabled */
+		if (IPV4_DEVCONF_ALL(net, BC_FORWARDING))
+			do_cache = false;
 		goto brd_input;
 	}
 
@@ -2066,16 +2071,13 @@ brd_input:
 	RT_CACHE_STAT_INC(in_brd);
 
 local_input:
-	do_cache = false;
-	if (res->fi) {
-		if (!itag) {
-			rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
-			if (rt_cache_valid(rth)) {
-				skb_dst_set_noref(skb, &rth->dst);
-				err = 0;
-				goto out;
-			}
-			do_cache = true;
+	do_cache &= res->fi && !itag;
+	if (do_cache) {
+		rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
+		if (rt_cache_valid(rth)) {
+			skb_dst_set_noref(skb, &rth->dst);
+			err = 0;
+			goto out;
 		}
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/sysctl_net_ipv4.c linux-libre-5.1.21-gnu/net/ipv4/sysctl_net_ipv4.c
--- linux-libre-5.1-gnu/net/ipv4/sysctl_net_ipv4.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/sysctl_net_ipv4.c	2019-07-28 02:28:39.000000000 -0400
@@ -39,6 +39,8 @@ static int ip_local_port_range_min[] = {
 static int ip_local_port_range_max[] = { 65535, 65535 };
 static int tcp_adv_win_scale_min = -31;
 static int tcp_adv_win_scale_max = 31;
+static int tcp_min_snd_mss_min = TCP_MIN_SND_MSS;
+static int tcp_min_snd_mss_max = 65535;
 static int ip_privileged_port_min;
 static int ip_privileged_port_max = 65535;
 static int ip_ttl_min = 1;
@@ -749,6 +751,15 @@ static struct ctl_table ipv4_net_table[]
 		.proc_handler	= proc_dointvec,
 	},
 	{
+		.procname	= "tcp_min_snd_mss",
+		.data		= &init_net.ipv4.sysctl_tcp_min_snd_mss,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &tcp_min_snd_mss_min,
+		.extra2		= &tcp_min_snd_mss_max,
+	},
+	{
 		.procname	= "tcp_probe_threshold",
 		.data		= &init_net.ipv4.sysctl_tcp_probe_threshold,
 		.maxlen		= sizeof(int),
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/tcp_bpf.c linux-libre-5.1.21-gnu/net/ipv4/tcp_bpf.c
--- linux-libre-5.1-gnu/net/ipv4/tcp_bpf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/tcp_bpf.c	2019-07-28 02:28:39.000000000 -0400
@@ -27,7 +27,10 @@ static int tcp_bpf_wait_data(struct sock
 			     int flags, long timeo, int *err)
 {
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
-	int ret;
+	int ret = 0;
+
+	if (!timeo)
+		return ret;
 
 	add_wait_queue(sk_sleep(sk), &wait);
 	sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
@@ -528,8 +531,6 @@ static void tcp_bpf_remove(struct sock *
 {
 	struct sk_psock_link *link;
 
-	sk_psock_cork_free(psock);
-	__sk_psock_purge_ingress_msg(psock);
 	while ((link = sk_psock_link_pop(psock))) {
 		sk_psock_unlink(sk, link);
 		sk_psock_free_link(link);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/tcp.c linux-libre-5.1.21-gnu/net/ipv4/tcp.c
--- linux-libre-5.1-gnu/net/ipv4/tcp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/tcp.c	2019-07-28 02:28:39.000000000 -0400
@@ -2630,6 +2630,8 @@ int tcp_disconnect(struct sock *sk, int
 	tcp_saved_syn_free(tp);
 	tp->compressed_ack = 0;
 	tp->bytes_sent = 0;
+	tp->bytes_acked = 0;
+	tp->bytes_received = 0;
 	tp->bytes_retrans = 0;
 	tp->duplicate_sack[0].start_seq = 0;
 	tp->duplicate_sack[0].end_seq = 0;
@@ -2784,7 +2786,9 @@ static int do_tcp_setsockopt(struct sock
 		name[val] = 0;
 
 		lock_sock(sk);
-		err = tcp_set_congestion_control(sk, name, true, true);
+		err = tcp_set_congestion_control(sk, name, true, true,
+						 ns_capable(sock_net(sk)->user_ns,
+							    CAP_NET_ADMIN));
 		release_sock(sk);
 		return err;
 	}
@@ -3889,6 +3893,7 @@ void __init tcp_init(void)
 	unsigned long limit;
 	unsigned int i;
 
+	BUILD_BUG_ON(TCP_MIN_SND_MSS <= MAX_TCP_OPTION_SPACE);
 	BUILD_BUG_ON(sizeof(struct tcp_skb_cb) >
 		     FIELD_SIZEOF(struct sk_buff, cb));
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/tcp_cong.c linux-libre-5.1.21-gnu/net/ipv4/tcp_cong.c
--- linux-libre-5.1-gnu/net/ipv4/tcp_cong.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/tcp_cong.c	2019-07-28 02:28:39.000000000 -0400
@@ -332,7 +332,8 @@ out:
  * tcp_reinit_congestion_control (if the current congestion control was
  * already initialized.
  */
-int tcp_set_congestion_control(struct sock *sk, const char *name, bool load, bool reinit)
+int tcp_set_congestion_control(struct sock *sk, const char *name, bool load,
+			       bool reinit, bool cap_net_admin)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	const struct tcp_congestion_ops *ca;
@@ -368,8 +369,7 @@ int tcp_set_congestion_control(struct so
 		} else {
 			err = -EBUSY;
 		}
-	} else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) ||
-		     ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))) {
+	} else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) || cap_net_admin)) {
 		err = -EPERM;
 	} else if (!try_module_get(ca->owner)) {
 		err = -EBUSY;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/tcp_input.c linux-libre-5.1.21-gnu/net/ipv4/tcp_input.c
--- linux-libre-5.1-gnu/net/ipv4/tcp_input.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/tcp_input.c	2019-07-28 02:28:39.000000000 -0400
@@ -1296,7 +1296,7 @@ static bool tcp_shifted_skb(struct sock
 	TCP_SKB_CB(skb)->seq += shifted;
 
 	tcp_skb_pcount_add(prev, pcount);
-	BUG_ON(tcp_skb_pcount(skb) < pcount);
+	WARN_ON_ONCE(tcp_skb_pcount(skb) < pcount);
 	tcp_skb_pcount_add(skb, -pcount);
 
 	/* When we're adding to gso_segs == 1, gso_size will be zero,
@@ -1362,6 +1362,21 @@ static int skb_can_shift(const struct sk
 	return !skb_headlen(skb) && skb_is_nonlinear(skb);
 }
 
+int tcp_skb_shift(struct sk_buff *to, struct sk_buff *from,
+		  int pcount, int shiftlen)
+{
+	/* TCP min gso_size is 8 bytes (TCP_MIN_GSO_SIZE)
+	 * Since TCP_SKB_CB(skb)->tcp_gso_segs is 16 bits, we need
+	 * to make sure not storing more than 65535 * 8 bytes per skb,
+	 * even if current MSS is bigger.
+	 */
+	if (unlikely(to->len + shiftlen >= 65535 * TCP_MIN_GSO_SIZE))
+		return 0;
+	if (unlikely(tcp_skb_pcount(to) + pcount > 65535))
+		return 0;
+	return skb_shift(to, from, shiftlen);
+}
+
 /* Try collapsing SACK blocks spanning across multiple skbs to a single
  * skb.
  */
@@ -1467,7 +1482,7 @@ static struct sk_buff *tcp_shift_skb_dat
 	if (!after(TCP_SKB_CB(skb)->seq + len, tp->snd_una))
 		goto fallback;
 
-	if (!skb_shift(prev, skb, len))
+	if (!tcp_skb_shift(prev, skb, pcount, len))
 		goto fallback;
 	if (!tcp_shifted_skb(sk, prev, skb, state, pcount, len, mss, dup_sack))
 		goto out;
@@ -1485,11 +1500,10 @@ static struct sk_buff *tcp_shift_skb_dat
 		goto out;
 
 	len = skb->len;
-	if (skb_shift(prev, skb, len)) {
-		pcount += tcp_skb_pcount(skb);
-		tcp_shifted_skb(sk, prev, skb, state, tcp_skb_pcount(skb),
+	pcount = tcp_skb_pcount(skb);
+	if (tcp_skb_shift(prev, skb, pcount, len))
+		tcp_shifted_skb(sk, prev, skb, state, pcount,
 				len, mss, 0);
-	}
 
 out:
 	return prev;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/tcp_ipv4.c linux-libre-5.1.21-gnu/net/ipv4/tcp_ipv4.c
--- linux-libre-5.1-gnu/net/ipv4/tcp_ipv4.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/tcp_ipv4.c	2019-07-28 02:28:39.000000000 -0400
@@ -2626,6 +2626,7 @@ static int __net_init tcp_sk_init(struct
 	net->ipv4.sysctl_tcp_ecn_fallback = 1;
 
 	net->ipv4.sysctl_tcp_base_mss = TCP_BASE_MSS;
+	net->ipv4.sysctl_tcp_min_snd_mss = TCP_MIN_SND_MSS;
 	net->ipv4.sysctl_tcp_probe_threshold = TCP_PROBE_THRESHOLD;
 	net->ipv4.sysctl_tcp_probe_interval = TCP_PROBE_INTERVAL;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/tcp_output.c linux-libre-5.1.21-gnu/net/ipv4/tcp_output.c
--- linux-libre-5.1-gnu/net/ipv4/tcp_output.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/tcp_output.c	2019-07-28 02:28:39.000000000 -0400
@@ -1289,6 +1289,7 @@ int tcp_fragment(struct sock *sk, enum t
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct sk_buff *buff;
 	int nsize, old_factor;
+	long limit;
 	int nlen;
 	u8 flags;
 
@@ -1299,6 +1300,20 @@ int tcp_fragment(struct sock *sk, enum t
 	if (nsize < 0)
 		nsize = 0;
 
+	/* tcp_sendmsg() can overshoot sk_wmem_queued by one full size skb.
+	 * We need some allowance to not penalize applications setting small
+	 * SO_SNDBUF values.
+	 * Also allow first and last skb in retransmit queue to be split.
+	 */
+	limit = sk->sk_sndbuf + 2 * SKB_TRUESIZE(GSO_MAX_SIZE);
+	if (unlikely((sk->sk_wmem_queued >> 1) > limit &&
+		     tcp_queue != TCP_FRAG_IN_WRITE_QUEUE &&
+		     skb != tcp_rtx_queue_head(sk) &&
+		     skb != tcp_rtx_queue_tail(sk))) {
+		NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPWQUEUETOOBIG);
+		return -ENOMEM;
+	}
+
 	if (skb_unclone(skb, gfp))
 		return -ENOMEM;
 
@@ -1457,8 +1472,7 @@ static inline int __tcp_mtu_to_mss(struc
 	mss_now -= icsk->icsk_ext_hdr_len;
 
 	/* Then reserve room for full set of TCP options and 8 bytes of data */
-	if (mss_now < 48)
-		mss_now = 48;
+	mss_now = max(mss_now, sock_net(sk)->ipv4.sysctl_tcp_min_snd_mss);
 	return mss_now;
 }
 
@@ -2750,7 +2764,7 @@ static bool tcp_collapse_retrans(struct
 		if (next_skb_size <= skb_availroom(skb))
 			skb_copy_bits(next_skb, 0, skb_put(skb, next_skb_size),
 				      next_skb_size);
-		else if (!skb_shift(skb, next_skb, next_skb_size))
+		else if (!tcp_skb_shift(skb, next_skb, 1, next_skb_size))
 			return false;
 	}
 	tcp_highest_sack_replace(sk, next_skb, skb);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/tcp_timer.c linux-libre-5.1.21-gnu/net/ipv4/tcp_timer.c
--- linux-libre-5.1-gnu/net/ipv4/tcp_timer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/tcp_timer.c	2019-07-28 02:28:39.000000000 -0400
@@ -154,6 +154,7 @@ static void tcp_mtu_probing(struct inet_
 		mss = tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_low) >> 1;
 		mss = min(net->ipv4.sysctl_tcp_base_mss, mss);
 		mss = max(mss, 68 - tcp_sk(sk)->tcp_header_len);
+		mss = max(mss, net->ipv4.sysctl_tcp_min_snd_mss);
 		icsk->icsk_mtup.search_low = tcp_mss_to_mtu(sk, mss);
 	}
 	tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv4/udp.c linux-libre-5.1.21-gnu/net/ipv4/udp.c
--- linux-libre-5.1-gnu/net/ipv4/udp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv4/udp.c	2019-07-28 02:28:39.000000000 -0400
@@ -503,7 +503,11 @@ static inline struct sock *__udp4_lib_lo
 struct sock *udp4_lib_lookup_skb(struct sk_buff *skb,
 				 __be16 sport, __be16 dport)
 {
-	return __udp4_lib_lookup_skb(skb, sport, dport, &udp_table);
+	const struct iphdr *iph = ip_hdr(skb);
+
+	return __udp4_lib_lookup(dev_net(skb->dev), iph->saddr, sport,
+				 iph->daddr, dport, inet_iif(skb),
+				 inet_sdif(skb), &udp_table, NULL);
 }
 EXPORT_SYMBOL_GPL(udp4_lib_lookup_skb);
 
@@ -538,8 +542,7 @@ static inline bool __udp_is_mcast_sock(s
 	    (inet->inet_dport != rmt_port && inet->inet_dport) ||
 	    (inet->inet_rcv_saddr && inet->inet_rcv_saddr != loc_addr) ||
 	    ipv6_only_sock(sk) ||
-	    (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif &&
-	     sk->sk_bound_dev_if != sdif))
+	    !udp_sk_bound_dev_eq(net, sk->sk_bound_dev_if, dif, sdif))
 		return false;
 	if (!ip_mc_sf_allow(sk, loc_addr, rmt_addr, dif, sdif))
 		return false;
@@ -1784,6 +1787,10 @@ try_again:
 		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
 		memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
 		*addr_len = sizeof(*sin);
+
+		if (cgroup_bpf_enabled)
+			BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk,
+							(struct sockaddr *)sin);
 	}
 
 	if (udp_sk(sk)->gro_enabled)
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/ip6_fib.c linux-libre-5.1.21-gnu/net/ipv6/ip6_fib.c
--- linux-libre-5.1-gnu/net/ipv6/ip6_fib.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/ip6_fib.c	2019-07-28 02:28:39.000000000 -0400
@@ -909,6 +909,12 @@ static void fib6_drop_pcpu_from(struct f
 {
 	int cpu;
 
+	/* Make sure rt6_make_pcpu_route() wont add other percpu routes
+	 * while we are cleaning them here.
+	 */
+	f6i->fib6_destroying = 1;
+	mb(); /* paired with the cmpxchg() in rt6_make_pcpu_route() */
+
 	/* release the reference to this fib entry from
 	 * all of its cached pcpu routes
 	 */
@@ -932,6 +938,9 @@ static void fib6_purge_rt(struct fib6_in
 {
 	struct fib6_table *table = rt->fib6_table;
 
+	if (rt->rt6i_pcpu)
+		fib6_drop_pcpu_from(rt, table);
+
 	if (atomic_read(&rt->fib6_ref) != 1) {
 		/* This route is used as dummy address holder in some split
 		 * nodes. It is not leaked, but it still holds other resources,
@@ -953,9 +962,6 @@ static void fib6_purge_rt(struct fib6_in
 			fn = rcu_dereference_protected(fn->parent,
 				    lockdep_is_held(&table->tb6_lock));
 		}
-
-		if (rt->rt6i_pcpu)
-			fib6_drop_pcpu_from(rt, table);
 	}
 }
 
@@ -1107,8 +1113,24 @@ add:
 		err = call_fib6_entry_notifiers(info->nl_net,
 						FIB_EVENT_ENTRY_ADD,
 						rt, extack);
-		if (err)
+		if (err) {
+			struct fib6_info *sibling, *next_sibling;
+
+			/* If the route has siblings, then it first
+			 * needs to be unlinked from them.
+			 */
+			if (!rt->fib6_nsiblings)
+				return err;
+
+			list_for_each_entry_safe(sibling, next_sibling,
+						 &rt->fib6_siblings,
+						 fib6_siblings)
+				sibling->fib6_nsiblings--;
+			rt->fib6_nsiblings = 0;
+			list_del_init(&rt->fib6_siblings);
+			rt6_multipath_rebalance(next_sibling);
 			return err;
+		}
 
 		rcu_assign_pointer(rt->fib6_next, iter);
 		atomic_inc(&rt->fib6_ref);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/ip6_flowlabel.c linux-libre-5.1.21-gnu/net/ipv6/ip6_flowlabel.c
--- linux-libre-5.1-gnu/net/ipv6/ip6_flowlabel.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/ip6_flowlabel.c	2019-07-28 02:28:39.000000000 -0400
@@ -254,9 +254,9 @@ struct ip6_flowlabel *fl6_sock_lookup(st
 	rcu_read_lock_bh();
 	for_each_sk_fl_rcu(np, sfl) {
 		struct ip6_flowlabel *fl = sfl->fl;
-		if (fl->label == label) {
+
+		if (fl->label == label && atomic_inc_not_zero(&fl->users)) {
 			fl->lastuse = jiffies;
-			atomic_inc(&fl->users);
 			rcu_read_unlock_bh();
 			return fl;
 		}
@@ -622,7 +622,8 @@ int ipv6_flowlabel_opt(struct sock *sk,
 						goto done;
 					}
 					fl1 = sfl->fl;
-					atomic_inc(&fl1->users);
+					if (!atomic_inc_not_zero(&fl1->users))
+						fl1 = NULL;
 					break;
 				}
 			}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/ip6_output.c linux-libre-5.1.21-gnu/net/ipv6/ip6_output.c
--- linux-libre-5.1-gnu/net/ipv6/ip6_output.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/ip6_output.c	2019-07-28 02:28:39.000000000 -0400
@@ -1275,7 +1275,7 @@ static int __ip6_append_data(struct sock
 	int csummode = CHECKSUM_NONE;
 	unsigned int maxnonfragsize, headersize;
 	unsigned int wmem_alloc_delta = 0;
-	bool paged, extra_uref;
+	bool paged, extra_uref = false;
 
 	skb = skb_peek_tail(queue);
 	if (!skb) {
@@ -1344,7 +1344,7 @@ emsgsize:
 		uarg = sock_zerocopy_realloc(sk, length, skb_zcopy(skb));
 		if (!uarg)
 			return -ENOBUFS;
-		extra_uref = true;
+		extra_uref = !skb_zcopy(skb);	/* only ref on new uarg */
 		if (rt->dst.dev->features & NETIF_F_SG &&
 		    csummode == CHECKSUM_PARTIAL) {
 			paged = true;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/netfilter/nf_conntrack_reasm.c linux-libre-5.1.21-gnu/net/ipv6/netfilter/nf_conntrack_reasm.c
--- linux-libre-5.1-gnu/net/ipv6/netfilter/nf_conntrack_reasm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/netfilter/nf_conntrack_reasm.c	2019-07-28 02:28:39.000000000 -0400
@@ -265,8 +265,14 @@ static int nf_ct_frag6_queue(struct frag
 
 	prev = fq->q.fragments_tail;
 	err = inet_frag_queue_insert(&fq->q, skb, offset, end);
-	if (err)
+	if (err) {
+		if (err == IPFRAG_DUP) {
+			/* No error for duplicates, pretend they got queued. */
+			kfree_skb(skb);
+			return -EINPROGRESS;
+		}
 		goto insert_error;
+	}
 
 	if (dev)
 		fq->iif = dev->ifindex;
@@ -293,15 +299,17 @@ static int nf_ct_frag6_queue(struct frag
 		skb->_skb_refdst = 0UL;
 		err = nf_ct_frag6_reasm(fq, skb, prev, dev);
 		skb->_skb_refdst = orefdst;
-		return err;
+
+		/* After queue has assumed skb ownership, only 0 or
+		 * -EINPROGRESS must be returned.
+		 */
+		return err ? -EINPROGRESS : 0;
 	}
 
 	skb_dst_drop(skb);
 	return -EINPROGRESS;
 
 insert_error:
-	if (err == IPFRAG_DUP)
-		goto err;
 	inet_frag_kill(&fq->q);
 err:
 	skb_dst_drop(skb);
@@ -480,12 +488,6 @@ int nf_ct_frag6_gather(struct net *net,
 		ret = 0;
 	}
 
-	/* after queue has assumed skb ownership, only 0 or -EINPROGRESS
-	 * must be returned.
-	 */
-	if (ret)
-		ret = -EINPROGRESS;
-
 	spin_unlock_bh(&fq->q.lock);
 	inet_frag_put(&fq->q);
 	return ret;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/netfilter/nft_fib_ipv6.c linux-libre-5.1.21-gnu/net/ipv6/netfilter/nft_fib_ipv6.c
--- linux-libre-5.1-gnu/net/ipv6/netfilter/nft_fib_ipv6.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/netfilter/nft_fib_ipv6.c	2019-07-28 02:28:39.000000000 -0400
@@ -169,8 +169,7 @@ void nft_fib6_eval(const struct nft_expr
 
 	if (nft_hook(pkt) == NF_INET_PRE_ROUTING &&
 	    nft_fib_is_loopback(pkt->skb, nft_in(pkt))) {
-		nft_fib_store_result(dest, priv, pkt,
-				     nft_in(pkt)->ifindex);
+		nft_fib_store_result(dest, priv, nft_in(pkt));
 		return;
 	}
 
@@ -187,18 +186,7 @@ void nft_fib6_eval(const struct nft_expr
 	if (oif && oif != rt->rt6i_idev->dev)
 		goto put_rt_err;
 
-	switch (priv->result) {
-	case NFT_FIB_RESULT_OIF:
-		*dest = rt->rt6i_idev->dev->ifindex;
-		break;
-	case NFT_FIB_RESULT_OIFNAME:
-		strncpy((char *)dest, rt->rt6i_idev->dev->name, IFNAMSIZ);
-		break;
-	default:
-		WARN_ON_ONCE(1);
-		break;
-	}
-
+	nft_fib_store_result(dest, priv, rt->rt6i_idev->dev);
  put_rt_err:
 	ip6_rt_put(rt);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/output_core.c linux-libre-5.1.21-gnu/net/ipv6/output_core.c
--- linux-libre-5.1-gnu/net/ipv6/output_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/output_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -10,15 +10,25 @@
 #include <net/secure_seq.h>
 #include <linux/netfilter.h>
 
-static u32 __ipv6_select_ident(struct net *net, u32 hashrnd,
+static u32 __ipv6_select_ident(struct net *net,
 			       const struct in6_addr *dst,
 			       const struct in6_addr *src)
 {
+	const struct {
+		struct in6_addr dst;
+		struct in6_addr src;
+	} __aligned(SIPHASH_ALIGNMENT) combined = {
+		.dst = *dst,
+		.src = *src,
+	};
 	u32 hash, id;
 
-	hash = __ipv6_addr_jhash(dst, hashrnd);
-	hash = __ipv6_addr_jhash(src, hash);
-	hash ^= net_hash_mix(net);
+	/* Note the following code is not safe, but this is okay. */
+	if (unlikely(siphash_key_is_zero(&net->ipv4.ip_id_key)))
+		get_random_bytes(&net->ipv4.ip_id_key,
+				 sizeof(net->ipv4.ip_id_key));
+
+	hash = siphash(&combined, sizeof(combined), &net->ipv4.ip_id_key);
 
 	/* Treat id of 0 as unset and if we get 0 back from ip_idents_reserve,
 	 * set the hight order instead thus minimizing possible future
@@ -41,7 +51,6 @@ static u32 __ipv6_select_ident(struct ne
  */
 __be32 ipv6_proxy_select_ident(struct net *net, struct sk_buff *skb)
 {
-	static u32 ip6_proxy_idents_hashrnd __read_mostly;
 	struct in6_addr buf[2];
 	struct in6_addr *addrs;
 	u32 id;
@@ -53,11 +62,7 @@ __be32 ipv6_proxy_select_ident(struct ne
 	if (!addrs)
 		return 0;
 
-	net_get_random_once(&ip6_proxy_idents_hashrnd,
-			    sizeof(ip6_proxy_idents_hashrnd));
-
-	id = __ipv6_select_ident(net, ip6_proxy_idents_hashrnd,
-				 &addrs[1], &addrs[0]);
+	id = __ipv6_select_ident(net, &addrs[1], &addrs[0]);
 	return htonl(id);
 }
 EXPORT_SYMBOL_GPL(ipv6_proxy_select_ident);
@@ -66,12 +71,9 @@ __be32 ipv6_select_ident(struct net *net
 			 const struct in6_addr *daddr,
 			 const struct in6_addr *saddr)
 {
-	static u32 ip6_idents_hashrnd __read_mostly;
 	u32 id;
 
-	net_get_random_once(&ip6_idents_hashrnd, sizeof(ip6_idents_hashrnd));
-
-	id = __ipv6_select_ident(net, ip6_idents_hashrnd, daddr, saddr);
+	id = __ipv6_select_ident(net, daddr, saddr);
 	return htonl(id);
 }
 EXPORT_SYMBOL(ipv6_select_ident);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/raw.c linux-libre-5.1.21-gnu/net/ipv6/raw.c
--- linux-libre-5.1-gnu/net/ipv6/raw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/raw.c	2019-07-28 02:28:39.000000000 -0400
@@ -287,7 +287,9 @@ static int rawv6_bind(struct sock *sk, s
 			/* Binding to link-local address requires an interface */
 			if (!sk->sk_bound_dev_if)
 				goto out_unlock;
+		}
 
+		if (sk->sk_bound_dev_if) {
 			err = -ENODEV;
 			dev = dev_get_by_index_rcu(sock_net(sk),
 						   sk->sk_bound_dev_if);
@@ -781,6 +783,7 @@ static int rawv6_sendmsg(struct sock *sk
 	struct flowi6 fl6;
 	struct ipcm6_cookie ipc6;
 	int addr_len = msg->msg_namelen;
+	int hdrincl;
 	u16 proto;
 	int err;
 
@@ -794,6 +797,13 @@ static int rawv6_sendmsg(struct sock *sk
 	if (msg->msg_flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
+	/* hdrincl should be READ_ONCE(inet->hdrincl)
+	 * but READ_ONCE() doesn't work with bit fields.
+	 * Doing this indirectly yields the same result.
+	 */
+	hdrincl = inet->hdrincl;
+	hdrincl = READ_ONCE(hdrincl);
+
 	/*
 	 *	Get and verify the address.
 	 */
@@ -885,11 +895,14 @@ static int rawv6_sendmsg(struct sock *sk
 	opt = ipv6_fixup_options(&opt_space, opt);
 
 	fl6.flowi6_proto = proto;
-	rfv.msg = msg;
-	rfv.hlen = 0;
-	err = rawv6_probe_proto_opt(&rfv, &fl6);
-	if (err)
-		goto out;
+
+	if (!hdrincl) {
+		rfv.msg = msg;
+		rfv.hlen = 0;
+		err = rawv6_probe_proto_opt(&rfv, &fl6);
+		if (err)
+			goto out;
+	}
 
 	if (!ipv6_addr_any(daddr))
 		fl6.daddr = *daddr;
@@ -906,7 +919,7 @@ static int rawv6_sendmsg(struct sock *sk
 		fl6.flowi6_oif = np->ucast_oif;
 	security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
 
-	if (inet->hdrincl)
+	if (hdrincl)
 		fl6.flowi6_flags |= FLOWI_FLAG_KNOWN_NH;
 
 	if (ipc6.tclass < 0)
@@ -929,7 +942,7 @@ static int rawv6_sendmsg(struct sock *sk
 		goto do_confirm;
 
 back_from_confirm:
-	if (inet->hdrincl)
+	if (hdrincl)
 		err = rawv6_send_hdrinc(sk, msg, len, &fl6, &dst,
 					msg->msg_flags, &ipc6.sockc);
 	else {
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/route.c linux-libre-5.1.21-gnu/net/ipv6/route.c
--- linux-libre-5.1-gnu/net/ipv6/route.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/route.c	2019-07-28 02:28:39.000000000 -0400
@@ -110,8 +110,8 @@ static int rt6_fill_node(struct net *net
 			 int iif, int type, u32 portid, u32 seq,
 			 unsigned int flags);
 static struct rt6_info *rt6_find_cached_rt(struct fib6_info *rt,
-					   struct in6_addr *daddr,
-					   struct in6_addr *saddr);
+					   const struct in6_addr *daddr,
+					   const struct in6_addr *saddr);
 
 #ifdef CONFIG_IPV6_ROUTE_INFO
 static struct fib6_info *rt6_add_route_info(struct net *net,
@@ -1260,6 +1260,13 @@ static struct rt6_info *rt6_make_pcpu_ro
 	prev = cmpxchg(p, NULL, pcpu_rt);
 	BUG_ON(prev);
 
+	if (rt->fib6_destroying) {
+		struct fib6_info *from;
+
+		from = xchg((__force struct fib6_info **)&pcpu_rt->from, NULL);
+		fib6_info_release(from);
+	}
+
 	return pcpu_rt;
 }
 
@@ -1529,31 +1536,44 @@ out:
  * Caller has to hold rcu_read_lock()
  */
 static struct rt6_info *rt6_find_cached_rt(struct fib6_info *rt,
-					   struct in6_addr *daddr,
-					   struct in6_addr *saddr)
+					   const struct in6_addr *daddr,
+					   const struct in6_addr *saddr)
 {
+	const struct in6_addr *src_key = NULL;
 	struct rt6_exception_bucket *bucket;
-	struct in6_addr *src_key = NULL;
 	struct rt6_exception *rt6_ex;
 	struct rt6_info *res = NULL;
 
-	bucket = rcu_dereference(rt->rt6i_exception_bucket);
-
 #ifdef CONFIG_IPV6_SUBTREES
 	/* rt6i_src.plen != 0 indicates rt is in subtree
 	 * and exception table is indexed by a hash of
 	 * both rt6i_dst and rt6i_src.
-	 * Otherwise, the exception table is indexed by
-	 * a hash of only rt6i_dst.
+	 * However, the src addr used to create the hash
+	 * might not be exactly the passed in saddr which
+	 * is a /128 addr from the flow.
+	 * So we need to use f6i->fib6_src to redo lookup
+	 * if the passed in saddr does not find anything.
+	 * (See the logic in ip6_rt_cache_alloc() on how
+	 * rt->rt6i_src is updated.)
 	 */
 	if (rt->fib6_src.plen)
 		src_key = saddr;
+find_ex:
 #endif
+	bucket = rcu_dereference(rt->rt6i_exception_bucket);
 	rt6_ex = __rt6_find_exception_rcu(&bucket, daddr, src_key);
 
 	if (rt6_ex && !rt6_check_expired(rt6_ex->rt6i))
 		res = rt6_ex->rt6i;
 
+#ifdef CONFIG_IPV6_SUBTREES
+	/* Use fib6_src as src_key and redo lookup */
+	if (!res && src_key && src_key != &rt->fib6_src.addr) {
+		src_key = &rt->fib6_src.addr;
+		goto find_ex;
+	}
+#endif
+
 	return res;
 }
 
@@ -2163,7 +2183,7 @@ static struct dst_entry *rt6_check(struc
 {
 	u32 rt_cookie = 0;
 
-	if ((from && !fib6_get_cookie_safe(from, &rt_cookie)) ||
+	if (!from || !fib6_get_cookie_safe(from, &rt_cookie) ||
 	    rt_cookie != cookie)
 		return NULL;
 
@@ -2422,6 +2442,12 @@ static struct rt6_info *__ip6_route_redi
 	struct fib6_info *rt;
 	struct fib6_node *fn;
 
+	/* l3mdev_update_flow overrides oif if the device is enslaved; in
+	 * this case we must match on the real ingress device, so reset it
+	 */
+	if (fl6->flowi6_flags & FLOWI_FLAG_SKIP_NH_OIF)
+		fl6->flowi6_oif = skb->dev->ifindex;
+
 	/* Get the "current" route for this destination and
 	 * check if the redirect has come from appropriate router.
 	 *
@@ -2608,10 +2634,8 @@ out:
 u32 ip6_mtu_from_fib6(struct fib6_info *f6i, struct in6_addr *daddr,
 		      struct in6_addr *saddr)
 {
-	struct rt6_exception_bucket *bucket;
-	struct rt6_exception *rt6_ex;
-	struct in6_addr *src_key;
 	struct inet6_dev *idev;
+	struct rt6_info *rt;
 	u32 mtu = 0;
 
 	if (unlikely(fib6_metric_locked(f6i, RTAX_MTU))) {
@@ -2620,18 +2644,10 @@ u32 ip6_mtu_from_fib6(struct fib6_info *
 			goto out;
 	}
 
-	src_key = NULL;
-#ifdef CONFIG_IPV6_SUBTREES
-	if (f6i->fib6_src.plen)
-		src_key = saddr;
-#endif
-
-	bucket = rcu_dereference(f6i->rt6i_exception_bucket);
-	rt6_ex = __rt6_find_exception_rcu(&bucket, daddr, src_key);
-	if (rt6_ex && !rt6_check_expired(rt6_ex->rt6i))
-		mtu = dst_metric_raw(&rt6_ex->rt6i->dst, RTAX_MTU);
-
-	if (likely(!mtu)) {
+	rt = rt6_find_cached_rt(f6i, daddr, saddr);
+	if (unlikely(rt)) {
+		mtu = dst_metric_raw(&rt->dst, RTAX_MTU);
+	} else {
 		struct net_device *dev = fib6_info_nh_dev(f6i);
 
 		mtu = IPV6_MIN_MTU;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/sit.c linux-libre-5.1.21-gnu/net/ipv6/sit.c
--- linux-libre-5.1-gnu/net/ipv6/sit.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/sit.c	2019-07-28 02:28:39.000000000 -0400
@@ -1084,7 +1084,7 @@ static void ipip6_tunnel_bind_dev(struct
 	if (!tdev && tunnel->parms.link)
 		tdev = __dev_get_by_index(tunnel->net, tunnel->parms.link);
 
-	if (tdev) {
+	if (tdev && !netif_is_l3_master(tdev)) {
 		int t_hlen = tunnel->hlen + sizeof(struct iphdr);
 
 		dev->hard_header_len = tdev->hard_header_len + sizeof(struct iphdr);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/ipv6/udp.c linux-libre-5.1.21-gnu/net/ipv6/udp.c
--- linux-libre-5.1-gnu/net/ipv6/udp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/ipv6/udp.c	2019-07-28 02:28:39.000000000 -0400
@@ -242,7 +242,7 @@ struct sock *udp6_lib_lookup_skb(struct
 
 	return __udp6_lib_lookup(dev_net(skb->dev), &iph->saddr, sport,
 				 &iph->daddr, dport, inet6_iif(skb),
-				 inet6_sdif(skb), &udp_table, skb);
+				 inet6_sdif(skb), &udp_table, NULL);
 }
 EXPORT_SYMBOL_GPL(udp6_lib_lookup_skb);
 
@@ -370,6 +370,10 @@ try_again:
 						    inet6_iif(skb));
 		}
 		*addr_len = sizeof(*sin6);
+
+		if (cgroup_bpf_enabled)
+			BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk,
+						(struct sockaddr *)sin6);
 	}
 
 	if (udp_sk(sk)->gro_enabled)
@@ -516,7 +520,7 @@ int __udp6_lib_err(struct sk_buff *skb,
 	struct net *net = dev_net(skb->dev);
 
 	sk = __udp6_lib_lookup(net, daddr, uh->dest, saddr, uh->source,
-			       inet6_iif(skb), inet6_sdif(skb), udptable, skb);
+			       inet6_iif(skb), inet6_sdif(skb), udptable, NULL);
 	if (!sk) {
 		/* No socket for error: try tunnels before discarding */
 		sk = ERR_PTR(-ENOENT);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/key/af_key.c linux-libre-5.1.21-gnu/net/key/af_key.c
--- linux-libre-5.1-gnu/net/key/af_key.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/key/af_key.c	2019-07-28 02:28:39.000000000 -0400
@@ -2442,8 +2442,10 @@ static int key_pol_get_resp(struct sock
 		goto out;
 	}
 	err = pfkey_xfrm_policy2msg(out_skb, xp, dir);
-	if (err < 0)
+	if (err < 0) {
+		kfree_skb(out_skb);
 		goto out;
+	}
 
 	out_hdr = (struct sadb_msg *) out_skb->data;
 	out_hdr->sadb_msg_version = hdr->sadb_msg_version;
@@ -2694,8 +2696,10 @@ static int dump_sp(struct xfrm_policy *x
 		return PTR_ERR(out_skb);
 
 	err = pfkey_xfrm_policy2msg(out_skb, xp, dir);
-	if (err < 0)
+	if (err < 0) {
+		kfree_skb(out_skb);
 		return err;
+	}
 
 	out_hdr = (struct sadb_msg *) out_skb->data;
 	out_hdr->sadb_msg_version = pfk->dump.msg_version;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/lapb/lapb_iface.c linux-libre-5.1.21-gnu/net/lapb/lapb_iface.c
--- linux-libre-5.1-gnu/net/lapb/lapb_iface.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/lapb/lapb_iface.c	2019-07-28 02:28:39.000000000 -0400
@@ -182,6 +182,7 @@ int lapb_unregister(struct net_device *d
 	lapb = __lapb_devtostruct(dev);
 	if (!lapb)
 		goto out;
+	lapb_put(lapb);
 
 	lapb_stop_t1timer(lapb);
 	lapb_stop_t2timer(lapb);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/llc/llc_output.c linux-libre-5.1.21-gnu/net/llc/llc_output.c
--- linux-libre-5.1-gnu/net/llc/llc_output.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/llc/llc_output.c	2019-07-28 02:28:39.000000000 -0400
@@ -72,6 +72,8 @@ int llc_build_and_send_ui_pkt(struct llc
 	rc = llc_mac_hdr_init(skb, skb->dev->dev_addr, dmac);
 	if (likely(!rc))
 		rc = dev_queue_xmit(skb);
+	else
+		kfree_skb(skb);
 	return rc;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/mac80211/ieee80211_i.h linux-libre-5.1.21-gnu/net/mac80211/ieee80211_i.h
--- linux-libre-5.1-gnu/net/mac80211/ieee80211_i.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/mac80211/ieee80211_i.h	2019-07-28 02:28:39.000000000 -0400
@@ -1434,7 +1434,7 @@ ieee80211_get_sband(struct ieee80211_sub
 	rcu_read_lock();
 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 
-	if (WARN_ON(!chanctx_conf)) {
+	if (WARN_ON_ONCE(!chanctx_conf)) {
 		rcu_read_unlock();
 		return NULL;
 	}
@@ -2035,6 +2035,13 @@ void __ieee80211_flush_queues(struct iee
 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
 {
 	/*
+	 * It's unsafe to try to do any work during reconfigure flow.
+	 * When the flow ends the work will be requeued.
+	 */
+	if (local->in_reconfig)
+		return false;
+
+	/*
 	 * If quiescing is set, we are racing with __ieee80211_suspend.
 	 * __ieee80211_suspend flushes the workers after setting quiescing,
 	 * and we check quiescing / suspended before enqueing new workers.
@@ -2222,6 +2229,9 @@ void ieee80211_tdls_cancel_channel_switc
 					  const u8 *addr);
 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
 void ieee80211_tdls_chsw_work(struct work_struct *wk);
+void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
+				      const u8 *peer, u16 reason);
+const char *ieee80211_get_reason_code_string(u16 reason_code);
 
 extern const struct ethtool_ops ieee80211_ethtool_ops;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/mac80211/mesh.c linux-libre-5.1.21-gnu/net/mac80211/mesh.c
--- linux-libre-5.1-gnu/net/mac80211/mesh.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/mac80211/mesh.c	2019-07-28 02:28:39.000000000 -0400
@@ -929,6 +929,7 @@ void ieee80211_stop_mesh(struct ieee8021
 
 	/* flush STAs and mpaths on this iface */
 	sta_info_flush(sdata);
+	ieee80211_free_keys(sdata, true);
 	mesh_path_flush_by_iface(sdata);
 
 	/* stop the beacon */
@@ -1220,7 +1221,8 @@ int ieee80211_mesh_finish_csa(struct iee
 	ifmsh->chsw_ttl = 0;
 
 	/* Remove the CSA and MCSP elements from the beacon */
-	tmp_csa_settings = rcu_dereference(ifmsh->csa);
+	tmp_csa_settings = rcu_dereference_protected(ifmsh->csa,
+					    lockdep_is_held(&sdata->wdev.mtx));
 	RCU_INIT_POINTER(ifmsh->csa, NULL);
 	if (tmp_csa_settings)
 		kfree_rcu(tmp_csa_settings, rcu_head);
@@ -1242,6 +1244,8 @@ int ieee80211_mesh_csa_beacon(struct iee
 	struct mesh_csa_settings *tmp_csa_settings;
 	int ret = 0;
 
+	lockdep_assert_held(&sdata->wdev.mtx);
+
 	tmp_csa_settings = kmalloc(sizeof(*tmp_csa_settings),
 				   GFP_ATOMIC);
 	if (!tmp_csa_settings)
diff -druNp --no-dereference linux-libre-5.1-gnu/net/mac80211/mlme.c linux-libre-5.1.21-gnu/net/mac80211/mlme.c
--- linux-libre-5.1-gnu/net/mac80211/mlme.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/mac80211/mlme.c	2019-07-28 02:28:39.000000000 -0400
@@ -1188,9 +1188,6 @@ static void ieee80211_chswitch_work(stru
 		goto out;
 	}
 
-	/* XXX: shouldn't really modify cfg80211-owned data! */
-	ifmgd->associated->channel = sdata->csa_chandef.chan;
-
 	ifmgd->csa_waiting_bcn = true;
 
 	ieee80211_sta_reset_beacon_monitor(sdata);
@@ -2966,7 +2963,7 @@ static void ieee80211_rx_mgmt_auth(struc
 #define case_WLAN(type) \
 	case WLAN_REASON_##type: return #type
 
-static const char *ieee80211_get_reason_code_string(u16 reason_code)
+const char *ieee80211_get_reason_code_string(u16 reason_code)
 {
 	switch (reason_code) {
 	case_WLAN(UNSPECIFIED);
@@ -3031,6 +3028,11 @@ static void ieee80211_rx_mgmt_deauth(str
 	if (len < 24 + 2)
 		return;
 
+	if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) {
+		ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code);
+		return;
+	}
+
 	if (ifmgd->associated &&
 	    ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid)) {
 		const u8 *bssid = ifmgd->associated->bssid;
@@ -3080,6 +3082,11 @@ static void ieee80211_rx_mgmt_disassoc(s
 
 	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
 
+	if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) {
+		ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code);
+		return;
+	}
+
 	sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n",
 		   mgmt->sa, reason_code,
 		   ieee80211_get_reason_code_string(reason_code));
diff -druNp --no-dereference linux-libre-5.1-gnu/net/mac80211/rx.c linux-libre-5.1.21-gnu/net/mac80211/rx.c
--- linux-libre-5.1-gnu/net/mac80211/rx.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/mac80211/rx.c	2019-07-28 02:28:39.000000000 -0400
@@ -3823,6 +3823,8 @@ static bool ieee80211_accept_frame(struc
 	case NL80211_IFTYPE_STATION:
 		if (!bssid && !sdata->u.mgd.use_4addr)
 			return false;
+		if (ieee80211_is_robust_mgmt_frame(skb) && !rx->sta)
+			return false;
 		if (multicast)
 			return true;
 		return ether_addr_equal(sdata->vif.addr, hdr->addr1);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/mac80211/tdls.c linux-libre-5.1.21-gnu/net/mac80211/tdls.c
--- linux-libre-5.1-gnu/net/mac80211/tdls.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/mac80211/tdls.c	2019-07-28 02:28:39.000000000 -0400
@@ -1994,3 +1994,26 @@ void ieee80211_tdls_chsw_work(struct wor
 	}
 	rtnl_unlock();
 }
+
+void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
+				      const u8 *peer, u16 reason)
+{
+	struct ieee80211_sta *sta;
+
+	rcu_read_lock();
+	sta = ieee80211_find_sta(&sdata->vif, peer);
+	if (!sta || !sta->tdls) {
+		rcu_read_unlock();
+		return;
+	}
+	rcu_read_unlock();
+
+	tdls_dbg(sdata, "disconnected from TDLS peer %pM (Reason: %u=%s)\n",
+		 peer, reason,
+		 ieee80211_get_reason_code_string(reason));
+
+	ieee80211_tdls_oper_request(&sdata->vif, peer,
+				    NL80211_TDLS_TEARDOWN,
+				    WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE,
+				    GFP_ATOMIC);
+}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/mac80211/util.c linux-libre-5.1.21-gnu/net/mac80211/util.c
--- linux-libre-5.1-gnu/net/mac80211/util.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/mac80211/util.c	2019-07-28 02:28:39.000000000 -0400
@@ -2442,6 +2442,10 @@ int ieee80211_reconfig(struct ieee80211_
 		mutex_lock(&local->mtx);
 		ieee80211_start_next_roc(local);
 		mutex_unlock(&local->mtx);
+
+		/* Requeue all works */
+		list_for_each_entry(sdata, &local->interfaces, list)
+			ieee80211_queue_work(&local->hw, &sdata->work);
 	}
 
 	ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
@@ -3757,7 +3761,9 @@ int ieee80211_check_combinations(struct
 	}
 
 	/* Always allow software iftypes */
-	if (local->hw.wiphy->software_iftypes & BIT(iftype)) {
+	if (local->hw.wiphy->software_iftypes & BIT(iftype) ||
+	    (iftype == NL80211_IFTYPE_AP_VLAN &&
+	     local->hw.wiphy->flags & WIPHY_FLAG_4ADDR_AP)) {
 		if (radar_detect)
 			return -EINVAL;
 		return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/mac80211/wpa.c linux-libre-5.1.21-gnu/net/mac80211/wpa.c
--- linux-libre-5.1-gnu/net/mac80211/wpa.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/mac80211/wpa.c	2019-07-28 02:28:39.000000000 -0400
@@ -1175,7 +1175,7 @@ ieee80211_crypto_aes_gmac_decrypt(struct
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
 	struct ieee80211_key *key = rx->key;
 	struct ieee80211_mmie_16 *mmie;
-	u8 aad[GMAC_AAD_LEN], mic[GMAC_MIC_LEN], ipn[6], nonce[GMAC_NONCE_LEN];
+	u8 aad[GMAC_AAD_LEN], *mic, ipn[6], nonce[GMAC_NONCE_LEN];
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 
 	if (!ieee80211_is_mgmt(hdr->frame_control))
@@ -1206,13 +1206,18 @@ ieee80211_crypto_aes_gmac_decrypt(struct
 		memcpy(nonce, hdr->addr2, ETH_ALEN);
 		memcpy(nonce + ETH_ALEN, ipn, 6);
 
+		mic = kmalloc(GMAC_MIC_LEN, GFP_ATOMIC);
+		if (!mic)
+			return RX_DROP_UNUSABLE;
 		if (ieee80211_aes_gmac(key->u.aes_gmac.tfm, aad, nonce,
 				       skb->data + 24, skb->len - 24,
 				       mic) < 0 ||
 		    crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) {
 			key->u.aes_gmac.icverrors++;
+			kfree(mic);
 			return RX_DROP_UNUSABLE;
 		}
+		kfree(mic);
 	}
 
 	memcpy(key->u.aes_gmac.rx_pn, ipn, 6);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/ipset/ip_set_hash_gen.h linux-libre-5.1.21-gnu/net/netfilter/ipset/ip_set_hash_gen.h
--- linux-libre-5.1-gnu/net/netfilter/ipset/ip_set_hash_gen.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/ipset/ip_set_hash_gen.h	2019-07-28 02:28:39.000000000 -0400
@@ -625,7 +625,7 @@ retry:
 					goto cleanup;
 				}
 				m->size = AHASH_INIT_SIZE;
-				extsize = ext_size(AHASH_INIT_SIZE, dsize);
+				extsize += ext_size(AHASH_INIT_SIZE, dsize);
 				RCU_INIT_POINTER(hbucket(t, key), m);
 			} else if (m->pos >= m->size) {
 				struct hbucket *ht;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/ipvs/ip_vs_core.c linux-libre-5.1.21-gnu/net/netfilter/ipvs/ip_vs_core.c
--- linux-libre-5.1-gnu/net/netfilter/ipvs/ip_vs_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/ipvs/ip_vs_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -2250,7 +2250,6 @@ static const struct nf_hook_ops ip_vs_op
 static int __net_init __ip_vs_init(struct net *net)
 {
 	struct netns_ipvs *ipvs;
-	int ret;
 
 	ipvs = net_generic(net, ip_vs_net_id);
 	if (ipvs == NULL)
@@ -2282,17 +2281,11 @@ static int __net_init __ip_vs_init(struc
 	if (ip_vs_sync_net_init(ipvs) < 0)
 		goto sync_fail;
 
-	ret = nf_register_net_hooks(net, ip_vs_ops, ARRAY_SIZE(ip_vs_ops));
-	if (ret < 0)
-		goto hook_fail;
-
 	return 0;
 /*
  * Error handling
  */
 
-hook_fail:
-	ip_vs_sync_net_cleanup(ipvs);
 sync_fail:
 	ip_vs_conn_net_cleanup(ipvs);
 conn_fail:
@@ -2312,7 +2305,6 @@ static void __net_exit __ip_vs_cleanup(s
 {
 	struct netns_ipvs *ipvs = net_ipvs(net);
 
-	nf_unregister_net_hooks(net, ip_vs_ops, ARRAY_SIZE(ip_vs_ops));
 	ip_vs_service_net_cleanup(ipvs);	/* ip_vs_flush() with locks */
 	ip_vs_conn_net_cleanup(ipvs);
 	ip_vs_app_net_cleanup(ipvs);
@@ -2323,10 +2315,24 @@ static void __net_exit __ip_vs_cleanup(s
 	net->ipvs = NULL;
 }
 
+static int __net_init __ip_vs_dev_init(struct net *net)
+{
+	int ret;
+
+	ret = nf_register_net_hooks(net, ip_vs_ops, ARRAY_SIZE(ip_vs_ops));
+	if (ret < 0)
+		goto hook_fail;
+	return 0;
+
+hook_fail:
+	return ret;
+}
+
 static void __net_exit __ip_vs_dev_cleanup(struct net *net)
 {
 	struct netns_ipvs *ipvs = net_ipvs(net);
 	EnterFunction(2);
+	nf_unregister_net_hooks(net, ip_vs_ops, ARRAY_SIZE(ip_vs_ops));
 	ipvs->enable = 0;	/* Disable packet reception */
 	smp_wmb();
 	ip_vs_sync_net_cleanup(ipvs);
@@ -2341,6 +2347,7 @@ static struct pernet_operations ipvs_cor
 };
 
 static struct pernet_operations ipvs_core_dev_ops = {
+	.init = __ip_vs_dev_init,
 	.exit = __ip_vs_dev_cleanup,
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/ipvs/ip_vs_ctl.c linux-libre-5.1.21-gnu/net/netfilter/ipvs/ip_vs_ctl.c
--- linux-libre-5.1-gnu/net/netfilter/ipvs/ip_vs_ctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/ipvs/ip_vs_ctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -2382,9 +2382,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cm
 			cfg.syncid = dm->syncid;
 			ret = start_sync_thread(ipvs, &cfg, dm->state);
 		} else {
-			mutex_lock(&ipvs->sync_mutex);
 			ret = stop_sync_thread(ipvs, dm->state);
-			mutex_unlock(&ipvs->sync_mutex);
 		}
 		goto out_dec;
 	}
@@ -3490,10 +3488,8 @@ static int ip_vs_genl_del_daemon(struct
 	if (!attrs[IPVS_DAEMON_ATTR_STATE])
 		return -EINVAL;
 
-	mutex_lock(&ipvs->sync_mutex);
 	ret = stop_sync_thread(ipvs,
 			       nla_get_u32(attrs[IPVS_DAEMON_ATTR_STATE]));
-	mutex_unlock(&ipvs->sync_mutex);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/ipvs/ip_vs_sync.c linux-libre-5.1.21-gnu/net/netfilter/ipvs/ip_vs_sync.c
--- linux-libre-5.1-gnu/net/netfilter/ipvs/ip_vs_sync.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/ipvs/ip_vs_sync.c	2019-07-28 02:28:39.000000000 -0400
@@ -195,6 +195,7 @@ union ip_vs_sync_conn {
 #define IPVS_OPT_F_PARAM	(1 << (IPVS_OPT_PARAM-1))
 
 struct ip_vs_sync_thread_data {
+	struct task_struct *task;
 	struct netns_ipvs *ipvs;
 	struct socket *sock;
 	char *buf;
@@ -374,8 +375,11 @@ static inline void sb_queue_tail(struct
 					      max(IPVS_SYNC_SEND_DELAY, 1));
 		ms->sync_queue_len++;
 		list_add_tail(&sb->list, &ms->sync_queue);
-		if ((++ms->sync_queue_delay) == IPVS_SYNC_WAKEUP_RATE)
-			wake_up_process(ms->master_thread);
+		if ((++ms->sync_queue_delay) == IPVS_SYNC_WAKEUP_RATE) {
+			int id = (int)(ms - ipvs->ms);
+
+			wake_up_process(ipvs->master_tinfo[id].task);
+		}
 	} else
 		ip_vs_sync_buff_release(sb);
 	spin_unlock(&ipvs->sync_lock);
@@ -1636,8 +1640,10 @@ static void master_wakeup_work_handler(s
 	spin_lock_bh(&ipvs->sync_lock);
 	if (ms->sync_queue_len &&
 	    ms->sync_queue_delay < IPVS_SYNC_WAKEUP_RATE) {
+		int id = (int)(ms - ipvs->ms);
+
 		ms->sync_queue_delay = IPVS_SYNC_WAKEUP_RATE;
-		wake_up_process(ms->master_thread);
+		wake_up_process(ipvs->master_tinfo[id].task);
 	}
 	spin_unlock_bh(&ipvs->sync_lock);
 }
@@ -1703,10 +1709,6 @@ done:
 	if (sb)
 		ip_vs_sync_buff_release(sb);
 
-	/* release the sending multicast socket */
-	sock_release(tinfo->sock);
-	kfree(tinfo);
-
 	return 0;
 }
 
@@ -1740,11 +1742,6 @@ static int sync_thread_backup(void *data
 		}
 	}
 
-	/* release the sending multicast socket */
-	sock_release(tinfo->sock);
-	kfree(tinfo->buf);
-	kfree(tinfo);
-
 	return 0;
 }
 
@@ -1752,8 +1749,8 @@ static int sync_thread_backup(void *data
 int start_sync_thread(struct netns_ipvs *ipvs, struct ipvs_sync_daemon_cfg *c,
 		      int state)
 {
-	struct ip_vs_sync_thread_data *tinfo = NULL;
-	struct task_struct **array = NULL, *task;
+	struct ip_vs_sync_thread_data *ti = NULL, *tinfo;
+	struct task_struct *task;
 	struct net_device *dev;
 	char *name;
 	int (*threadfn)(void *data);
@@ -1822,7 +1819,7 @@ int start_sync_thread(struct netns_ipvs
 		threadfn = sync_thread_master;
 	} else if (state == IP_VS_STATE_BACKUP) {
 		result = -EEXIST;
-		if (ipvs->backup_threads)
+		if (ipvs->backup_tinfo)
 			goto out_early;
 
 		ipvs->bcfg = *c;
@@ -1849,28 +1846,22 @@ int start_sync_thread(struct netns_ipvs
 					  master_wakeup_work_handler);
 			ms->ipvs = ipvs;
 		}
-	} else {
-		array = kcalloc(count, sizeof(struct task_struct *),
-				GFP_KERNEL);
-		result = -ENOMEM;
-		if (!array)
-			goto out;
 	}
+	result = -ENOMEM;
+	ti = kcalloc(count, sizeof(struct ip_vs_sync_thread_data),
+		     GFP_KERNEL);
+	if (!ti)
+		goto out;
 
 	for (id = 0; id < count; id++) {
-		result = -ENOMEM;
-		tinfo = kmalloc(sizeof(*tinfo), GFP_KERNEL);
-		if (!tinfo)
-			goto out;
+		tinfo = &ti[id];
 		tinfo->ipvs = ipvs;
-		tinfo->sock = NULL;
 		if (state == IP_VS_STATE_BACKUP) {
+			result = -ENOMEM;
 			tinfo->buf = kmalloc(ipvs->bcfg.sync_maxlen,
 					     GFP_KERNEL);
 			if (!tinfo->buf)
 				goto out;
-		} else {
-			tinfo->buf = NULL;
 		}
 		tinfo->id = id;
 		if (state == IP_VS_STATE_MASTER)
@@ -1885,17 +1876,15 @@ int start_sync_thread(struct netns_ipvs
 			result = PTR_ERR(task);
 			goto out;
 		}
-		tinfo = NULL;
-		if (state == IP_VS_STATE_MASTER)
-			ipvs->ms[id].master_thread = task;
-		else
-			array[id] = task;
+		tinfo->task = task;
 	}
 
 	/* mark as active */
 
-	if (state == IP_VS_STATE_BACKUP)
-		ipvs->backup_threads = array;
+	if (state == IP_VS_STATE_MASTER)
+		ipvs->master_tinfo = ti;
+	else
+		ipvs->backup_tinfo = ti;
 	spin_lock_bh(&ipvs->sync_buff_lock);
 	ipvs->sync_state |= state;
 	spin_unlock_bh(&ipvs->sync_buff_lock);
@@ -1910,29 +1899,31 @@ int start_sync_thread(struct netns_ipvs
 
 out:
 	/* We do not need RTNL lock anymore, release it here so that
-	 * sock_release below and in the kthreads can use rtnl_lock
-	 * to leave the mcast group.
+	 * sock_release below can use rtnl_lock to leave the mcast group.
 	 */
 	rtnl_unlock();
-	count = id;
-	while (count-- > 0) {
-		if (state == IP_VS_STATE_MASTER)
-			kthread_stop(ipvs->ms[count].master_thread);
-		else
-			kthread_stop(array[count]);
+	id = min(id, count - 1);
+	if (ti) {
+		for (tinfo = ti + id; tinfo >= ti; tinfo--) {
+			if (tinfo->task)
+				kthread_stop(tinfo->task);
+		}
 	}
 	if (!(ipvs->sync_state & IP_VS_STATE_MASTER)) {
 		kfree(ipvs->ms);
 		ipvs->ms = NULL;
 	}
 	mutex_unlock(&ipvs->sync_mutex);
-	if (tinfo) {
-		if (tinfo->sock)
-			sock_release(tinfo->sock);
-		kfree(tinfo->buf);
-		kfree(tinfo);
+
+	/* No more mutexes, release socks */
+	if (ti) {
+		for (tinfo = ti + id; tinfo >= ti; tinfo--) {
+			if (tinfo->sock)
+				sock_release(tinfo->sock);
+			kfree(tinfo->buf);
+		}
+		kfree(ti);
 	}
-	kfree(array);
 	return result;
 
 out_early:
@@ -1944,15 +1935,18 @@ out_early:
 
 int stop_sync_thread(struct netns_ipvs *ipvs, int state)
 {
-	struct task_struct **array;
+	struct ip_vs_sync_thread_data *ti, *tinfo;
 	int id;
 	int retc = -EINVAL;
 
 	IP_VS_DBG(7, "%s(): pid %d\n", __func__, task_pid_nr(current));
 
+	mutex_lock(&ipvs->sync_mutex);
 	if (state == IP_VS_STATE_MASTER) {
+		retc = -ESRCH;
 		if (!ipvs->ms)
-			return -ESRCH;
+			goto err;
+		ti = ipvs->master_tinfo;
 
 		/*
 		 * The lock synchronizes with sb_queue_tail(), so that we don't
@@ -1971,38 +1965,56 @@ int stop_sync_thread(struct netns_ipvs *
 			struct ipvs_master_sync_state *ms = &ipvs->ms[id];
 			int ret;
 
+			tinfo = &ti[id];
 			pr_info("stopping master sync thread %d ...\n",
-				task_pid_nr(ms->master_thread));
+				task_pid_nr(tinfo->task));
 			cancel_delayed_work_sync(&ms->master_wakeup_work);
-			ret = kthread_stop(ms->master_thread);
+			ret = kthread_stop(tinfo->task);
 			if (retc >= 0)
 				retc = ret;
 		}
 		kfree(ipvs->ms);
 		ipvs->ms = NULL;
+		ipvs->master_tinfo = NULL;
 	} else if (state == IP_VS_STATE_BACKUP) {
-		if (!ipvs->backup_threads)
-			return -ESRCH;
+		retc = -ESRCH;
+		if (!ipvs->backup_tinfo)
+			goto err;
+		ti = ipvs->backup_tinfo;
 
 		ipvs->sync_state &= ~IP_VS_STATE_BACKUP;
-		array = ipvs->backup_threads;
 		retc = 0;
 		for (id = ipvs->threads_mask; id >= 0; id--) {
 			int ret;
 
+			tinfo = &ti[id];
 			pr_info("stopping backup sync thread %d ...\n",
-				task_pid_nr(array[id]));
-			ret = kthread_stop(array[id]);
+				task_pid_nr(tinfo->task));
+			ret = kthread_stop(tinfo->task);
 			if (retc >= 0)
 				retc = ret;
 		}
-		kfree(array);
-		ipvs->backup_threads = NULL;
+		ipvs->backup_tinfo = NULL;
+	} else {
+		goto err;
+	}
+	id = ipvs->threads_mask;
+	mutex_unlock(&ipvs->sync_mutex);
+
+	/* No more mutexes, release socks */
+	for (tinfo = ti + id; tinfo >= ti; tinfo--) {
+		if (tinfo->sock)
+			sock_release(tinfo->sock);
+		kfree(tinfo->buf);
 	}
+	kfree(ti);
 
 	/* decrease the module use count */
 	ip_vs_use_count_dec();
+	return retc;
 
+err:
+	mutex_unlock(&ipvs->sync_mutex);
 	return retc;
 }
 
@@ -2021,7 +2033,6 @@ void ip_vs_sync_net_cleanup(struct netns
 {
 	int retc;
 
-	mutex_lock(&ipvs->sync_mutex);
 	retc = stop_sync_thread(ipvs, IP_VS_STATE_MASTER);
 	if (retc && retc != -ESRCH)
 		pr_err("Failed to stop Master Daemon\n");
@@ -2029,5 +2040,4 @@ void ip_vs_sync_net_cleanup(struct netns
 	retc = stop_sync_thread(ipvs, IP_VS_STATE_BACKUP);
 	if (retc && retc != -ESRCH)
 		pr_err("Failed to stop Backup Daemon\n");
-	mutex_unlock(&ipvs->sync_mutex);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_conntrack_h323_asn1.c linux-libre-5.1.21-gnu/net/netfilter/nf_conntrack_h323_asn1.c
--- linux-libre-5.1-gnu/net/netfilter/nf_conntrack_h323_asn1.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_conntrack_h323_asn1.c	2019-07-28 02:28:39.000000000 -0400
@@ -172,7 +172,7 @@ static int nf_h323_error_boundary(struct
 	if (bits % BITS_PER_BYTE > 0)
 		bytes++;
 
-	if (*bs->cur + bytes > *bs->end)
+	if (bs->cur + bytes > bs->end)
 		return 1;
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_conntrack_netlink.c linux-libre-5.1.21-gnu/net/netfilter/nf_conntrack_netlink.c
--- linux-libre-5.1-gnu/net/netfilter/nf_conntrack_netlink.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_conntrack_netlink.c	2019-07-28 02:28:39.000000000 -0400
@@ -1254,7 +1254,6 @@ static int ctnetlink_del_conntrack(struc
 	struct nf_conntrack_tuple tuple;
 	struct nf_conn *ct;
 	struct nfgenmsg *nfmsg = nlmsg_data(nlh);
-	u_int8_t u3 = nfmsg->nfgen_family;
 	struct nf_conntrack_zone zone;
 	int err;
 
@@ -1264,11 +1263,13 @@ static int ctnetlink_del_conntrack(struc
 
 	if (cda[CTA_TUPLE_ORIG])
 		err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_ORIG,
-					    u3, &zone);
+					    nfmsg->nfgen_family, &zone);
 	else if (cda[CTA_TUPLE_REPLY])
 		err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_REPLY,
-					    u3, &zone);
+					    nfmsg->nfgen_family, &zone);
 	else {
+		u_int8_t u3 = nfmsg->version ? nfmsg->nfgen_family : AF_UNSPEC;
+
 		return ctnetlink_flush_conntrack(net, cda,
 						 NETLINK_CB(skb).portid,
 						 nlmsg_report(nlh), u3);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_conntrack_proto_icmp.c linux-libre-5.1.21-gnu/net/netfilter/nf_conntrack_proto_icmp.c
--- linux-libre-5.1-gnu/net/netfilter/nf_conntrack_proto_icmp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_conntrack_proto_icmp.c	2019-07-28 02:28:39.000000000 -0400
@@ -221,7 +221,7 @@ int nf_conntrack_icmpv4_error(struct nf_
 	/* See ip_conntrack_proto_tcp.c */
 	if (state->net->ct.sysctl_checksum &&
 	    state->hook == NF_INET_PRE_ROUTING &&
-	    nf_ip_checksum(skb, state->hook, dataoff, 0)) {
+	    nf_ip_checksum(skb, state->hook, dataoff, IPPROTO_ICMP)) {
 		icmp_error_log(skb, state, "bad hw icmp checksum");
 		return -NF_ACCEPT;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_flow_table_core.c linux-libre-5.1.21-gnu/net/netfilter/nf_flow_table_core.c
--- linux-libre-5.1-gnu/net/netfilter/nf_flow_table_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_flow_table_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -185,14 +185,25 @@ static const struct rhashtable_params nf
 
 int flow_offload_add(struct nf_flowtable *flow_table, struct flow_offload *flow)
 {
-	flow->timeout = (u32)jiffies;
+	int err;
 
-	rhashtable_insert_fast(&flow_table->rhashtable,
-			       &flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].node,
-			       nf_flow_offload_rhash_params);
-	rhashtable_insert_fast(&flow_table->rhashtable,
-			       &flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY].node,
-			       nf_flow_offload_rhash_params);
+	err = rhashtable_insert_fast(&flow_table->rhashtable,
+				     &flow->tuplehash[0].node,
+				     nf_flow_offload_rhash_params);
+	if (err < 0)
+		return err;
+
+	err = rhashtable_insert_fast(&flow_table->rhashtable,
+				     &flow->tuplehash[1].node,
+				     nf_flow_offload_rhash_params);
+	if (err < 0) {
+		rhashtable_remove_fast(&flow_table->rhashtable,
+				       &flow->tuplehash[0].node,
+				       nf_flow_offload_rhash_params);
+		return err;
+	}
+
+	flow->timeout = (u32)jiffies;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(flow_offload_add);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_flow_table_ip.c linux-libre-5.1.21-gnu/net/netfilter/nf_flow_table_ip.c
--- linux-libre-5.1-gnu/net/netfilter/nf_flow_table_ip.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_flow_table_ip.c	2019-07-28 02:28:39.000000000 -0400
@@ -181,6 +181,9 @@ static int nf_flow_tuple_ip(struct sk_bu
 	    iph->protocol != IPPROTO_UDP)
 		return -1;
 
+	if (iph->ttl <= 1)
+		return -1;
+
 	thoff = iph->ihl * 4;
 	if (!pskb_may_pull(skb, thoff + sizeof(*ports)))
 		return -1;
@@ -243,8 +246,7 @@ nf_flow_offload_ip_hook(void *priv, stru
 	flow = container_of(tuplehash, struct flow_offload, tuplehash[dir]);
 	rt = (struct rtable *)flow->tuplehash[dir].tuple.dst_cache;
 
-	if (unlikely(nf_flow_exceeds_mtu(skb, flow->tuplehash[dir].tuple.mtu)) &&
-	    (ip_hdr(skb)->frag_off & htons(IP_DF)) != 0)
+	if (unlikely(nf_flow_exceeds_mtu(skb, flow->tuplehash[dir].tuple.mtu)))
 		return NF_ACCEPT;
 
 	if (skb_try_make_writable(skb, sizeof(*iph)))
@@ -411,6 +413,9 @@ static int nf_flow_tuple_ipv6(struct sk_
 	    ip6h->nexthdr != IPPROTO_UDP)
 		return -1;
 
+	if (ip6h->hop_limit <= 1)
+		return -1;
+
 	thoff = sizeof(*ip6h);
 	if (!pskb_may_pull(skb, thoff + sizeof(*ports)))
 		return -1;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_nat_helper.c linux-libre-5.1.21-gnu/net/netfilter/nf_nat_helper.c
--- linux-libre-5.1-gnu/net/netfilter/nf_nat_helper.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_nat_helper.c	2019-07-28 02:28:39.000000000 -0400
@@ -170,7 +170,7 @@ nf_nat_mangle_udp_packet(struct sk_buff
 	if (!udph->check && skb->ip_summed != CHECKSUM_PARTIAL)
 		return true;
 
-	nf_nat_csum_recalc(skb, nf_ct_l3num(ct), IPPROTO_TCP,
+	nf_nat_csum_recalc(skb, nf_ct_l3num(ct), IPPROTO_UDP,
 			   udph, &udph->check, datalen, oldlen);
 
 	return true;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_nat_proto.c linux-libre-5.1.21-gnu/net/netfilter/nf_nat_proto.c
--- linux-libre-5.1-gnu/net/netfilter/nf_nat_proto.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_nat_proto.c	2019-07-28 02:28:39.000000000 -0400
@@ -567,7 +567,7 @@ int nf_nat_icmp_reply_translation(struct
 
 	if (!skb_make_writable(skb, hdrlen + sizeof(*inside)))
 		return 0;
-	if (nf_ip_checksum(skb, hooknum, hdrlen, 0))
+	if (nf_ip_checksum(skb, hooknum, hdrlen, IPPROTO_ICMP))
 		return 0;
 
 	inside = (void *)skb->data + hdrlen;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_queue.c linux-libre-5.1.21-gnu/net/netfilter/nf_queue.c
--- linux-libre-5.1-gnu/net/netfilter/nf_queue.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_queue.c	2019-07-28 02:28:39.000000000 -0400
@@ -190,6 +190,11 @@ static int __nf_queue(struct sk_buff *sk
 		goto err;
 	}
 
+	if (!skb_dst_force(skb) && state->hook != NF_INET_PRE_ROUTING) {
+		status = -ENETDOWN;
+		goto err;
+	}
+
 	*entry = (struct nf_queue_entry) {
 		.skb	= skb,
 		.state	= *state,
@@ -198,7 +203,6 @@ static int __nf_queue(struct sk_buff *sk
 	};
 
 	nf_queue_entry_get_refs(entry);
-	skb_dst_force(skb);
 
 	switch (entry->state.pf) {
 	case AF_INET:
@@ -254,6 +258,7 @@ static unsigned int nf_iterate(struct sk
 repeat:
 		verdict = nf_hook_entry_hookfn(hook, skb, state);
 		if (verdict != NF_ACCEPT) {
+			*index = i;
 			if (verdict != NF_REPEAT)
 				return verdict;
 			goto repeat;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nf_tables_api.c linux-libre-5.1.21-gnu/net/netfilter/nf_tables_api.c
--- linux-libre-5.1-gnu/net/netfilter/nf_tables_api.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nf_tables_api.c	2019-07-28 02:28:39.000000000 -0400
@@ -1190,6 +1190,9 @@ static int nft_dump_stats(struct sk_buff
 	u64 pkts, bytes;
 	int cpu;
 
+	if (!stats)
+		return 0;
+
 	memset(&total, 0, sizeof(total));
 	for_each_possible_cpu(cpu) {
 		cpu_stats = per_cpu_ptr(stats, cpu);
@@ -1247,6 +1250,7 @@ static int nf_tables_fill_chain_info(str
 	if (nft_is_base_chain(chain)) {
 		const struct nft_base_chain *basechain = nft_base_chain(chain);
 		const struct nf_hook_ops *ops = &basechain->ops;
+		struct nft_stats __percpu *stats;
 		struct nlattr *nest;
 
 		nest = nla_nest_start(skb, NFTA_CHAIN_HOOK);
@@ -1268,8 +1272,9 @@ static int nf_tables_fill_chain_info(str
 		if (nla_put_string(skb, NFTA_CHAIN_TYPE, basechain->type->name))
 			goto nla_put_failure;
 
-		if (rcu_access_pointer(basechain->stats) &&
-		    nft_dump_stats(skb, rcu_dereference(basechain->stats)))
+		stats = rcu_dereference_check(basechain->stats,
+					      lockdep_commit_lock_is_held(net));
+		if (nft_dump_stats(skb, stats))
 			goto nla_put_failure;
 	}
 
@@ -2256,13 +2261,13 @@ static int nf_tables_fill_rule_info(stru
 				    u32 flags, int family,
 				    const struct nft_table *table,
 				    const struct nft_chain *chain,
-				    const struct nft_rule *rule)
+				    const struct nft_rule *rule,
+				    const struct nft_rule *prule)
 {
 	struct nlmsghdr *nlh;
 	struct nfgenmsg *nfmsg;
 	const struct nft_expr *expr, *next;
 	struct nlattr *list;
-	const struct nft_rule *prule;
 	u16 type = nfnl_msg_type(NFNL_SUBSYS_NFTABLES, event);
 
 	nlh = nlmsg_put(skb, portid, seq, type, sizeof(struct nfgenmsg), flags);
@@ -2282,8 +2287,7 @@ static int nf_tables_fill_rule_info(stru
 			 NFTA_RULE_PAD))
 		goto nla_put_failure;
 
-	if ((event != NFT_MSG_DELRULE) && (rule->list.prev != &chain->rules)) {
-		prule = list_prev_entry(rule, list);
+	if (event != NFT_MSG_DELRULE && prule) {
 		if (nla_put_be64(skb, NFTA_RULE_POSITION,
 				 cpu_to_be64(prule->handle),
 				 NFTA_RULE_PAD))
@@ -2330,7 +2334,7 @@ static void nf_tables_rule_notify(const
 
 	err = nf_tables_fill_rule_info(skb, ctx->net, ctx->portid, ctx->seq,
 				       event, 0, ctx->family, ctx->table,
-				       ctx->chain, rule);
+				       ctx->chain, rule, NULL);
 	if (err < 0) {
 		kfree_skb(skb);
 		goto err;
@@ -2355,12 +2359,13 @@ static int __nf_tables_dump_rules(struct
 				  const struct nft_chain *chain)
 {
 	struct net *net = sock_net(skb->sk);
+	const struct nft_rule *rule, *prule;
 	unsigned int s_idx = cb->args[0];
-	const struct nft_rule *rule;
 
+	prule = NULL;
 	list_for_each_entry_rcu(rule, &chain->rules, list) {
 		if (!nft_is_active(net, rule))
-			goto cont;
+			goto cont_skip;
 		if (*idx < s_idx)
 			goto cont;
 		if (*idx > s_idx) {
@@ -2372,11 +2377,13 @@ static int __nf_tables_dump_rules(struct
 					NFT_MSG_NEWRULE,
 					NLM_F_MULTI | NLM_F_APPEND,
 					table->family,
-					table, chain, rule) < 0)
+					table, chain, rule, prule) < 0)
 			return 1;
 
 		nl_dump_check_consistent(cb, nlmsg_hdr(skb));
 cont:
+		prule = rule;
+cont_skip:
 		(*idx)++;
 	}
 	return 0;
@@ -2532,7 +2539,7 @@ static int nf_tables_getrule(struct net
 
 	err = nf_tables_fill_rule_info(skb2, net, NETLINK_CB(skb).portid,
 				       nlh->nlmsg_seq, NFT_MSG_NEWRULE, 0,
-				       family, table, chain, rule);
+				       family, table, chain, rule, NULL);
 	if (err < 0)
 		goto err;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nft_fib.c linux-libre-5.1.21-gnu/net/netfilter/nft_fib.c
--- linux-libre-5.1-gnu/net/netfilter/nft_fib.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nft_fib.c	2019-07-28 02:28:39.000000000 -0400
@@ -135,17 +135,17 @@ int nft_fib_dump(struct sk_buff *skb, co
 EXPORT_SYMBOL_GPL(nft_fib_dump);
 
 void nft_fib_store_result(void *reg, const struct nft_fib *priv,
-			  const struct nft_pktinfo *pkt, int index)
+			  const struct net_device *dev)
 {
-	struct net_device *dev;
 	u32 *dreg = reg;
+	int index;
 
 	switch (priv->result) {
 	case NFT_FIB_RESULT_OIF:
+		index = dev ? dev->ifindex : 0;
 		*dreg = (priv->flags & NFTA_FIB_F_PRESENT) ? !!index : index;
 		break;
 	case NFT_FIB_RESULT_OIFNAME:
-		dev = dev_get_by_index_rcu(nft_net(pkt), index);
 		if (priv->flags & NFTA_FIB_F_PRESENT)
 			*dreg = !!dev;
 		else
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/nft_flow_offload.c linux-libre-5.1.21-gnu/net/netfilter/nft_flow_offload.c
--- linux-libre-5.1-gnu/net/netfilter/nft_flow_offload.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/nft_flow_offload.c	2019-07-28 02:28:39.000000000 -0400
@@ -12,7 +12,6 @@
 #include <net/netfilter/nf_conntrack_core.h>
 #include <linux/netfilter/nf_conntrack_common.h>
 #include <net/netfilter/nf_flow_table.h>
-#include <net/netfilter/nf_conntrack_helper.h>
 
 struct nft_flow_offload {
 	struct nft_flowtable	*flowtable;
@@ -49,15 +48,20 @@ static int nft_flow_route(const struct n
 	return 0;
 }
 
-static bool nft_flow_offload_skip(struct sk_buff *skb)
+static bool nft_flow_offload_skip(struct sk_buff *skb, int family)
 {
-	struct ip_options *opt  = &(IPCB(skb)->opt);
-
-	if (unlikely(opt->optlen))
-		return true;
 	if (skb_sec_path(skb))
 		return true;
 
+	if (family == NFPROTO_IPV4) {
+		const struct ip_options *opt;
+
+		opt = &(IPCB(skb)->opt);
+
+		if (unlikely(opt->optlen))
+			return true;
+	}
+
 	return false;
 }
 
@@ -67,15 +71,15 @@ static void nft_flow_offload_eval(const
 {
 	struct nft_flow_offload *priv = nft_expr_priv(expr);
 	struct nf_flowtable *flowtable = &priv->flowtable->data;
-	const struct nf_conn_help *help;
 	enum ip_conntrack_info ctinfo;
 	struct nf_flow_route route;
 	struct flow_offload *flow;
 	enum ip_conntrack_dir dir;
+	bool is_tcp = false;
 	struct nf_conn *ct;
 	int ret;
 
-	if (nft_flow_offload_skip(pkt->skb))
+	if (nft_flow_offload_skip(pkt->skb, nft_pf(pkt)))
 		goto out;
 
 	ct = nf_ct_get(pkt->skb, &ctinfo);
@@ -84,14 +88,16 @@ static void nft_flow_offload_eval(const
 
 	switch (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum) {
 	case IPPROTO_TCP:
+		is_tcp = true;
+		break;
 	case IPPROTO_UDP:
 		break;
 	default:
 		goto out;
 	}
 
-	help = nfct_help(ct);
-	if (help)
+	if (nf_ct_ext_exist(ct, NF_CT_EXT_HELPER) ||
+	    ct->status & IPS_SEQ_ADJUST)
 		goto out;
 
 	if (ctinfo == IP_CT_NEW ||
@@ -109,10 +115,16 @@ static void nft_flow_offload_eval(const
 	if (!flow)
 		goto err_flow_alloc;
 
+	if (is_tcp) {
+		ct->proto.tcp.seen[0].flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
+		ct->proto.tcp.seen[1].flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
+	}
+
 	ret = flow_offload_add(flowtable, flow);
 	if (ret < 0)
 		goto err_flow_add;
 
+	dst_release(route.tuple[!dir].dst);
 	return;
 
 err_flow_add:
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netfilter/utils.c linux-libre-5.1.21-gnu/net/netfilter/utils.c
--- linux-libre-5.1-gnu/net/netfilter/utils.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netfilter/utils.c	2019-07-28 02:28:39.000000000 -0400
@@ -17,7 +17,8 @@ __sum16 nf_ip_checksum(struct sk_buff *s
 	case CHECKSUM_COMPLETE:
 		if (hook != NF_INET_PRE_ROUTING && hook != NF_INET_LOCAL_IN)
 			break;
-		if ((protocol == 0 && !csum_fold(skb->csum)) ||
+		if ((protocol != IPPROTO_TCP && protocol != IPPROTO_UDP &&
+		    !csum_fold(skb->csum)) ||
 		    !csum_tcpudp_magic(iph->saddr, iph->daddr,
 				       skb->len - dataoff, protocol,
 				       skb->csum)) {
@@ -26,7 +27,7 @@ __sum16 nf_ip_checksum(struct sk_buff *s
 		}
 		/* fall through */
 	case CHECKSUM_NONE:
-		if (protocol == 0)
+		if (protocol != IPPROTO_TCP && protocol != IPPROTO_UDP)
 			skb->csum = 0;
 		else
 			skb->csum = csum_tcpudp_nofold(iph->saddr, iph->daddr,
diff -druNp --no-dereference linux-libre-5.1-gnu/net/netrom/af_netrom.c linux-libre-5.1.21-gnu/net/netrom/af_netrom.c
--- linux-libre-5.1-gnu/net/netrom/af_netrom.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/netrom/af_netrom.c	2019-07-28 02:28:39.000000000 -0400
@@ -872,7 +872,7 @@ int nr_rx_frame(struct sk_buff *skb, str
 	unsigned short frametype, flags, window, timeout;
 	int ret;
 
-	skb->sk = NULL;		/* Initially we don't know who it's for */
+	skb_orphan(skb);
 
 	/*
 	 *	skb->data points to the netrom frame start
@@ -970,7 +970,9 @@ int nr_rx_frame(struct sk_buff *skb, str
 
 	window = skb->data[20];
 
+	sock_hold(make);
 	skb->sk             = make;
+	skb->destructor     = sock_efree;
 	make->sk_state	    = TCP_ESTABLISHED;
 
 	/* Fill in his circuit details */
diff -druNp --no-dereference linux-libre-5.1-gnu/net/nfc/nci/data.c linux-libre-5.1.21-gnu/net/nfc/nci/data.c
--- linux-libre-5.1-gnu/net/nfc/nci/data.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/nfc/nci/data.c	2019-07-28 02:28:39.000000000 -0400
@@ -119,7 +119,7 @@ static int nci_queue_tx_data_frags(struc
 	conn_info = nci_get_conn_info_by_conn_id(ndev, conn_id);
 	if (!conn_info) {
 		rc = -EPROTO;
-		goto free_exit;
+		goto exit;
 	}
 
 	__skb_queue_head_init(&frags_q);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/nfc/netlink.c linux-libre-5.1.21-gnu/net/nfc/netlink.c
--- linux-libre-5.1-gnu/net/nfc/netlink.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/nfc/netlink.c	2019-07-28 02:28:39.000000000 -0400
@@ -922,7 +922,8 @@ static int nfc_genl_deactivate_target(st
 	u32 device_idx, target_idx;
 	int rc;
 
-	if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
+	    !info->attrs[NFC_ATTR_TARGET_INDEX])
 		return -EINVAL;
 
 	device_idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/openvswitch/actions.c linux-libre-5.1.21-gnu/net/openvswitch/actions.c
--- linux-libre-5.1-gnu/net/openvswitch/actions.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/openvswitch/actions.c	2019-07-28 02:28:39.000000000 -0400
@@ -175,8 +175,7 @@ static void update_ethertype(struct sk_b
 	if (skb->ip_summed == CHECKSUM_COMPLETE) {
 		__be16 diff[] = { ~(hdr->h_proto), ethertype };
 
-		skb->csum = ~csum_partial((char *)diff, sizeof(diff),
-					~skb->csum);
+		skb->csum = csum_partial((char *)diff, sizeof(diff), skb->csum);
 	}
 
 	hdr->h_proto = ethertype;
@@ -268,8 +267,7 @@ static int set_mpls(struct sk_buff *skb,
 	if (skb->ip_summed == CHECKSUM_COMPLETE) {
 		__be32 diff[] = { ~(stack->label_stack_entry), lse };
 
-		skb->csum = ~csum_partial((char *)diff, sizeof(diff),
-					  ~skb->csum);
+		skb->csum = csum_partial((char *)diff, sizeof(diff), skb->csum);
 	}
 
 	stack->label_stack_entry = lse;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/openvswitch/vport-internal_dev.c linux-libre-5.1.21-gnu/net/openvswitch/vport-internal_dev.c
--- linux-libre-5.1-gnu/net/openvswitch/vport-internal_dev.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/openvswitch/vport-internal_dev.c	2019-07-28 02:28:39.000000000 -0400
@@ -170,7 +170,9 @@ static struct vport *internal_dev_create
 {
 	struct vport *vport;
 	struct internal_dev *internal_dev;
+	struct net_device *dev;
 	int err;
+	bool free_vport = true;
 
 	vport = ovs_vport_alloc(0, &ovs_internal_vport_ops, parms);
 	if (IS_ERR(vport)) {
@@ -178,8 +180,9 @@ static struct vport *internal_dev_create
 		goto error;
 	}
 
-	vport->dev = alloc_netdev(sizeof(struct internal_dev),
-				  parms->name, NET_NAME_USER, do_setup);
+	dev = alloc_netdev(sizeof(struct internal_dev),
+			   parms->name, NET_NAME_USER, do_setup);
+	vport->dev = dev;
 	if (!vport->dev) {
 		err = -ENOMEM;
 		goto error_free_vport;
@@ -200,8 +203,10 @@ static struct vport *internal_dev_create
 
 	rtnl_lock();
 	err = register_netdevice(vport->dev);
-	if (err)
+	if (err) {
+		free_vport = false;
 		goto error_unlock;
+	}
 
 	dev_set_promiscuity(vport->dev, 1);
 	rtnl_unlock();
@@ -211,11 +216,12 @@ static struct vport *internal_dev_create
 
 error_unlock:
 	rtnl_unlock();
-	free_percpu(vport->dev->tstats);
+	free_percpu(dev->tstats);
 error_free_netdev:
-	free_netdev(vport->dev);
+	free_netdev(dev);
 error_free_vport:
-	ovs_vport_free(vport);
+	if (free_vport)
+		ovs_vport_free(vport);
 error:
 	return ERR_PTR(err);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/net/packet/af_packet.c linux-libre-5.1.21-gnu/net/packet/af_packet.c
--- linux-libre-5.1-gnu/net/packet/af_packet.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/packet/af_packet.c	2019-07-28 02:28:39.000000000 -0400
@@ -2409,6 +2409,9 @@ static void tpacket_destruct_skb(struct
 
 		ts = __packet_set_timestamp(po, ph, skb);
 		__packet_set_status(po, ph, TP_STATUS_AVAILABLE | ts);
+
+		if (!packet_read_pending(&po->tx_ring))
+			complete(&po->skb_completion);
 	}
 
 	sock_wfree(skb);
@@ -2593,7 +2596,7 @@ static int tpacket_parse_header(struct p
 
 static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 {
-	struct sk_buff *skb;
+	struct sk_buff *skb = NULL;
 	struct net_device *dev;
 	struct virtio_net_hdr *vnet_hdr = NULL;
 	struct sockcm_cookie sockc;
@@ -2608,6 +2611,7 @@ static int tpacket_snd(struct packet_soc
 	int len_sum = 0;
 	int status = TP_STATUS_AVAILABLE;
 	int hlen, tlen, copylen = 0;
+	long timeo = 0;
 
 	mutex_lock(&po->pg_vec_lock);
 
@@ -2654,12 +2658,21 @@ static int tpacket_snd(struct packet_soc
 	if ((size_max > dev->mtu + reserve + VLAN_HLEN) && !po->has_vnet_hdr)
 		size_max = dev->mtu + reserve + VLAN_HLEN;
 
+	reinit_completion(&po->skb_completion);
+
 	do {
 		ph = packet_current_frame(po, &po->tx_ring,
 					  TP_STATUS_SEND_REQUEST);
 		if (unlikely(ph == NULL)) {
-			if (need_wait && need_resched())
-				schedule();
+			if (need_wait && skb) {
+				timeo = sock_sndtimeo(&po->sk, msg->msg_flags & MSG_DONTWAIT);
+				timeo = wait_for_completion_interruptible_timeout(&po->skb_completion, timeo);
+				if (timeo <= 0) {
+					err = !timeo ? -ETIMEDOUT : -ERESTARTSYS;
+					goto out_put;
+				}
+			}
+			/* check for additional frames */
 			continue;
 		}
 
@@ -3016,8 +3029,8 @@ static int packet_release(struct socket
 
 	synchronize_net();
 
+	kfree(po->rollover);
 	if (f) {
-		kfree(po->rollover);
 		fanout_release_data(f);
 		kfree(f);
 	}
@@ -3215,6 +3228,7 @@ static int packet_create(struct net *net
 	sock_init_data(sock, sk);
 
 	po = pkt_sk(sk);
+	init_completion(&po->skb_completion);
 	sk->sk_family = PF_PACKET;
 	po->num = proto;
 	po->xmit = dev_queue_xmit;
@@ -4327,7 +4341,7 @@ static int packet_set_ring(struct sock *
 				    req3->tp_sizeof_priv ||
 				    req3->tp_feature_req_word) {
 					err = -EINVAL;
-					goto out;
+					goto out_free_pg_vec;
 				}
 			}
 			break;
@@ -4391,6 +4405,7 @@ static int packet_set_ring(struct sock *
 			prb_shutdown_retire_blk_timer(po, rb_queue);
 	}
 
+out_free_pg_vec:
 	if (pg_vec)
 		free_pg_vec(pg_vec, order, req->tp_block_nr);
 out:
@@ -4603,14 +4618,29 @@ static void __exit packet_exit(void)
 
 static int __init packet_init(void)
 {
-	int rc = proto_register(&packet_proto, 0);
+	int rc;
 
-	if (rc != 0)
+	rc = proto_register(&packet_proto, 0);
+	if (rc)
 		goto out;
+	rc = sock_register(&packet_family_ops);
+	if (rc)
+		goto out_proto;
+	rc = register_pernet_subsys(&packet_net_ops);
+	if (rc)
+		goto out_sock;
+	rc = register_netdevice_notifier(&packet_netdev_notifier);
+	if (rc)
+		goto out_pernet;
 
-	sock_register(&packet_family_ops);
-	register_pernet_subsys(&packet_net_ops);
-	register_netdevice_notifier(&packet_netdev_notifier);
+	return 0;
+
+out_pernet:
+	unregister_pernet_subsys(&packet_net_ops);
+out_sock:
+	sock_unregister(PF_PACKET);
+out_proto:
+	proto_unregister(&packet_proto);
 out:
 	return rc;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/net/packet/internal.h linux-libre-5.1.21-gnu/net/packet/internal.h
--- linux-libre-5.1-gnu/net/packet/internal.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/packet/internal.h	2019-07-28 02:28:39.000000000 -0400
@@ -128,6 +128,7 @@ struct packet_sock {
 	unsigned int		tp_hdrlen;
 	unsigned int		tp_reserve;
 	unsigned int		tp_tstamp;
+	struct completion	skb_completion;
 	struct net_device __rcu	*cached_dev;
 	int			(*xmit)(struct sk_buff *skb);
 	struct packet_type	prot_hook ____cacheline_aligned_in_smp;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/rds/ib_rdma.c linux-libre-5.1.21-gnu/net/rds/ib_rdma.c
--- linux-libre-5.1-gnu/net/rds/ib_rdma.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/rds/ib_rdma.c	2019-07-28 02:28:39.000000000 -0400
@@ -428,12 +428,14 @@ int rds_ib_flush_mr_pool(struct rds_ib_m
 		wait_clean_list_grace();
 
 		list_to_llist_nodes(pool, &unmap_list, &clean_nodes, &clean_tail);
-		if (ibmr_ret)
+		if (ibmr_ret) {
 			*ibmr_ret = llist_entry(clean_nodes, struct rds_ib_mr, llnode);
-
+			clean_nodes = clean_nodes->next;
+		}
 		/* more than one entry in llist nodes */
-		if (clean_nodes->next)
-			llist_add_batch(clean_nodes->next, clean_tail, &pool->clean_list);
+		if (clean_nodes)
+			llist_add_batch(clean_nodes, clean_tail,
+					&pool->clean_list);
 
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/rxrpc/af_rxrpc.c linux-libre-5.1.21-gnu/net/rxrpc/af_rxrpc.c
--- linux-libre-5.1-gnu/net/rxrpc/af_rxrpc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/rxrpc/af_rxrpc.c	2019-07-28 02:28:39.000000000 -0400
@@ -521,6 +521,7 @@ static int rxrpc_sendmsg(struct socket *
 
 	switch (rx->sk.sk_state) {
 	case RXRPC_UNBOUND:
+	case RXRPC_CLIENT_UNBOUND:
 		rx->srx.srx_family = AF_RXRPC;
 		rx->srx.srx_service = 0;
 		rx->srx.transport_type = SOCK_DGRAM;
@@ -545,10 +546,9 @@ static int rxrpc_sendmsg(struct socket *
 		}
 
 		rx->local = local;
-		rx->sk.sk_state = RXRPC_CLIENT_UNBOUND;
+		rx->sk.sk_state = RXRPC_CLIENT_BOUND;
 		/* Fall through */
 
-	case RXRPC_CLIENT_UNBOUND:
 	case RXRPC_CLIENT_BOUND:
 		if (!m->msg_name &&
 		    test_bit(RXRPC_SOCK_CONNECTED, &rx->flags)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sched/act_api.c linux-libre-5.1.21-gnu/net/sched/act_api.c
--- linux-libre-5.1-gnu/net/sched/act_api.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sched/act_api.c	2019-07-28 02:28:39.000000000 -0400
@@ -800,7 +800,7 @@ int tcf_action_dump(struct sk_buff *skb,
 
 	for (i = 0; i < TCA_ACT_MAX_PRIO && actions[i]; i++) {
 		a = actions[i];
-		nest = nla_nest_start(skb, a->order);
+		nest = nla_nest_start(skb, i + 1);
 		if (nest == NULL)
 			goto nla_put_failure;
 		err = tcf_action_dump_1(skb, a, bind, ref);
@@ -1300,7 +1300,6 @@ tca_action_gd(struct net *net, struct nl
 			ret = PTR_ERR(act);
 			goto err;
 		}
-		act->order = i;
 		attr_size += tcf_action_fill_size(act);
 		actions[i - 1] = act;
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sched/cls_api.c linux-libre-5.1.21-gnu/net/sched/cls_api.c
--- linux-libre-5.1-gnu/net/sched/cls_api.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sched/cls_api.c	2019-07-28 02:28:39.000000000 -0400
@@ -2162,6 +2162,9 @@ replay:
 		tfilter_notify(net, skb, n, tp, block, q, parent, fh,
 			       RTM_NEWTFILTER, false, rtnl_held);
 		tfilter_put(tp, fh);
+		/* q pointer is NULL for shared blocks */
+		if (q)
+			q->flags &= ~TCQ_F_CAN_BYPASS;
 	}
 
 errout:
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sched/cls_matchall.c linux-libre-5.1.21-gnu/net/sched/cls_matchall.c
--- linux-libre-5.1-gnu/net/sched/cls_matchall.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sched/cls_matchall.c	2019-07-28 02:28:39.000000000 -0400
@@ -32,6 +32,9 @@ static int mall_classify(struct sk_buff
 {
 	struct cls_mall_head *head = rcu_dereference_bh(tp->root);
 
+	if (unlikely(!head))
+		return -1;
+
 	if (tc_skip_sw(head->flags))
 		return -1;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sched/sch_fq_codel.c linux-libre-5.1.21-gnu/net/sched/sch_fq_codel.c
--- linux-libre-5.1-gnu/net/sched/sch_fq_codel.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sched/sch_fq_codel.c	2019-07-28 02:28:39.000000000 -0400
@@ -600,8 +600,6 @@ static unsigned long fq_codel_find(struc
 static unsigned long fq_codel_bind(struct Qdisc *sch, unsigned long parent,
 			      u32 classid)
 {
-	/* we cannot bypass queue discipline anymore */
-	sch->flags &= ~TCQ_F_CAN_BYPASS;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sched/sch_sfq.c linux-libre-5.1.21-gnu/net/sched/sch_sfq.c
--- linux-libre-5.1-gnu/net/sched/sch_sfq.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sched/sch_sfq.c	2019-07-28 02:28:39.000000000 -0400
@@ -828,8 +828,6 @@ static unsigned long sfq_find(struct Qdi
 static unsigned long sfq_bind(struct Qdisc *sch, unsigned long parent,
 			      u32 classid)
 {
-	/* we cannot bypass queue discipline anymore */
-	sch->flags &= ~TCQ_F_CAN_BYPASS;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sctp/endpointola.c linux-libre-5.1.21-gnu/net/sctp/endpointola.c
--- linux-libre-5.1-gnu/net/sctp/endpointola.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sctp/endpointola.c	2019-07-28 02:28:39.000000000 -0400
@@ -133,10 +133,6 @@ static struct sctp_endpoint *sctp_endpoi
 	/* Initialize the bind addr area */
 	sctp_bind_addr_init(&ep->base.bind_addr, 0);
 
-	/* Remember who we are attached to.  */
-	ep->base.sk = sk;
-	sock_hold(ep->base.sk);
-
 	/* Create the lists of associations.  */
 	INIT_LIST_HEAD(&ep->asocs);
 
@@ -169,6 +165,10 @@ static struct sctp_endpoint *sctp_endpoi
 	ep->prsctp_enable = net->sctp.prsctp_enable;
 	ep->reconf_enable = net->sctp.reconf_enable;
 
+	/* Remember who we are attached to.  */
+	ep->base.sk = sk;
+	sock_hold(ep->base.sk);
+
 	return ep;
 
 nomem_shkey:
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sctp/sm_make_chunk.c linux-libre-5.1.21-gnu/net/sctp/sm_make_chunk.c
--- linux-libre-5.1-gnu/net/sctp/sm_make_chunk.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sctp/sm_make_chunk.c	2019-07-28 02:28:39.000000000 -0400
@@ -2329,7 +2329,6 @@ int sctp_process_init(struct sctp_associ
 	union sctp_addr addr;
 	struct sctp_af *af;
 	int src_match = 0;
-	char *cookie;
 
 	/* We must include the address that the INIT packet came from.
 	 * This is the only address that matters for an INIT packet.
@@ -2433,14 +2432,6 @@ int sctp_process_init(struct sctp_associ
 	/* Peer Rwnd   : Current calculated value of the peer's rwnd.  */
 	asoc->peer.rwnd = asoc->peer.i.a_rwnd;
 
-	/* Copy cookie in case we need to resend COOKIE-ECHO. */
-	cookie = asoc->peer.cookie;
-	if (cookie) {
-		asoc->peer.cookie = kmemdup(cookie, asoc->peer.cookie_len, gfp);
-		if (!asoc->peer.cookie)
-			goto clean_up;
-	}
-
 	/* RFC 2960 7.2.1 The initial value of ssthresh MAY be arbitrarily
 	 * high (for example, implementations MAY use the size of the receiver
 	 * advertised window).
@@ -2609,7 +2600,11 @@ do_addr_param:
 	case SCTP_PARAM_STATE_COOKIE:
 		asoc->peer.cookie_len =
 			ntohs(param.p->length) - sizeof(struct sctp_paramhdr);
-		asoc->peer.cookie = param.cookie->body;
+		if (asoc->peer.cookie)
+			kfree(asoc->peer.cookie);
+		asoc->peer.cookie = kmemdup(param.cookie->body, asoc->peer.cookie_len, gfp);
+		if (!asoc->peer.cookie)
+			retval = 0;
 		break;
 
 	case SCTP_PARAM_HEARTBEAT_INFO:
@@ -2671,6 +2666,8 @@ do_addr_param:
 			goto fall_through;
 
 		/* Save peer's random parameter */
+		if (asoc->peer.peer_random)
+			kfree(asoc->peer.peer_random);
 		asoc->peer.peer_random = kmemdup(param.p,
 					    ntohs(param.p->length), gfp);
 		if (!asoc->peer.peer_random) {
@@ -2684,6 +2681,8 @@ do_addr_param:
 			goto fall_through;
 
 		/* Save peer's HMAC list */
+		if (asoc->peer.peer_hmacs)
+			kfree(asoc->peer.peer_hmacs);
 		asoc->peer.peer_hmacs = kmemdup(param.p,
 					    ntohs(param.p->length), gfp);
 		if (!asoc->peer.peer_hmacs) {
@@ -2699,6 +2698,8 @@ do_addr_param:
 		if (!ep->auth_enable)
 			goto fall_through;
 
+		if (asoc->peer.peer_chunks)
+			kfree(asoc->peer.peer_chunks);
 		asoc->peer.peer_chunks = kmemdup(param.p,
 					    ntohs(param.p->length), gfp);
 		if (!asoc->peer.peer_chunks)
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sctp/sm_sideeffect.c linux-libre-5.1.21-gnu/net/sctp/sm_sideeffect.c
--- linux-libre-5.1-gnu/net/sctp/sm_sideeffect.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sctp/sm_sideeffect.c	2019-07-28 02:28:39.000000000 -0400
@@ -898,6 +898,11 @@ static void sctp_cmd_new_state(struct sc
 						asoc->rto_initial;
 	}
 
+	if (sctp_state(asoc, ESTABLISHED)) {
+		kfree(asoc->peer.cookie);
+		asoc->peer.cookie = NULL;
+	}
+
 	if (sctp_state(asoc, ESTABLISHED) ||
 	    sctp_state(asoc, CLOSED) ||
 	    sctp_state(asoc, SHUTDOWN_RECEIVED)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sctp/socket.c linux-libre-5.1.21-gnu/net/sctp/socket.c
--- linux-libre-5.1-gnu/net/sctp/socket.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sctp/socket.c	2019-07-28 02:28:39.000000000 -0400
@@ -4828,35 +4828,17 @@ out_nounlock:
 static int sctp_connect(struct sock *sk, struct sockaddr *addr,
 			int addr_len, int flags)
 {
-	struct inet_sock *inet = inet_sk(sk);
 	struct sctp_af *af;
-	int err = 0;
+	int err = -EINVAL;
 
 	lock_sock(sk);
-
 	pr_debug("%s: sk:%p, sockaddr:%p, addr_len:%d\n", __func__, sk,
 		 addr, addr_len);
 
-	/* We may need to bind the socket. */
-	if (!inet->inet_num) {
-		if (sk->sk_prot->get_port(sk, 0)) {
-			release_sock(sk);
-			return -EAGAIN;
-		}
-		inet->inet_sport = htons(inet->inet_num);
-	}
-
 	/* Validate addr_len before calling common connect/connectx routine. */
-	af = addr_len < offsetofend(struct sockaddr, sa_family) ? NULL :
-		sctp_get_af_specific(addr->sa_family);
-	if (!af || addr_len < af->sockaddr_len) {
-		err = -EINVAL;
-	} else {
-		/* Pass correct addr len to common routine (so it knows there
-		 * is only one address being passed.
-		 */
+	af = sctp_get_af_specific(addr->sa_family);
+	if (af && addr_len >= af->sockaddr_len)
 		err = __sctp_connect(sk, addr, af->sockaddr_len, flags, NULL);
-	}
 
 	release_sock(sk);
 	return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sctp/stream.c linux-libre-5.1.21-gnu/net/sctp/stream.c
--- linux-libre-5.1-gnu/net/sctp/stream.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sctp/stream.c	2019-07-28 02:28:39.000000000 -0400
@@ -168,13 +168,20 @@ out:
 int sctp_stream_init_ext(struct sctp_stream *stream, __u16 sid)
 {
 	struct sctp_stream_out_ext *soute;
+	int ret;
 
 	soute = kzalloc(sizeof(*soute), GFP_KERNEL);
 	if (!soute)
 		return -ENOMEM;
 	SCTP_SO(stream, sid)->ext = soute;
 
-	return sctp_sched_init_sid(stream, sid, GFP_KERNEL);
+	ret = sctp_sched_init_sid(stream, sid, GFP_KERNEL);
+	if (ret) {
+		kfree(SCTP_SO(stream, sid)->ext);
+		SCTP_SO(stream, sid)->ext = NULL;
+	}
+
+	return ret;
 }
 
 void sctp_stream_free(struct sctp_stream *stream)
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sunrpc/clnt.c linux-libre-5.1.21-gnu/net/sunrpc/clnt.c
--- linux-libre-5.1-gnu/net/sunrpc/clnt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sunrpc/clnt.c	2019-07-28 02:28:39.000000000 -0400
@@ -1767,6 +1767,7 @@ rpc_xdr_encode(struct rpc_task *task)
 	req->rq_snd_buf.head[0].iov_len = 0;
 	xdr_init_encode(&xdr, &req->rq_snd_buf,
 			req->rq_snd_buf.head[0].iov_base, req);
+	xdr_free_bvec(&req->rq_snd_buf);
 	if (rpc_encode_header(task, &xdr))
 		return;
 
@@ -1799,8 +1800,6 @@ call_encode(struct rpc_task *task)
 			rpc_exit(task, task->tk_status);
 		}
 		return;
-	} else {
-		xprt_request_prepare(task->tk_rqstp);
 	}
 
 	/* Add task to reply queue before transmission to avoid races */
@@ -2260,13 +2259,13 @@ call_status(struct rpc_task *task)
 	case -ECONNREFUSED:
 	case -ECONNRESET:
 	case -ECONNABORTED:
+	case -ENOTCONN:
 		rpc_force_rebind(clnt);
 		/* fall through */
 	case -EADDRINUSE:
 		rpc_delay(task, 3*HZ);
 		/* fall through */
 	case -EPIPE:
-	case -ENOTCONN:
 	case -EAGAIN:
 		break;
 	case -EIO:
@@ -2387,17 +2386,21 @@ call_decode(struct rpc_task *task)
 		return;
 	case -EAGAIN:
 		task->tk_status = 0;
-		/* Note: rpc_decode_header() may have freed the RPC slot */
-		if (task->tk_rqstp == req) {
-			xdr_free_bvec(&req->rq_rcv_buf);
-			req->rq_reply_bytes_recvd = 0;
-			req->rq_rcv_buf.len = 0;
-			if (task->tk_client->cl_discrtry)
-				xprt_conditional_disconnect(req->rq_xprt,
-							    req->rq_connect_cookie);
-		}
+		xdr_free_bvec(&req->rq_rcv_buf);
+		req->rq_reply_bytes_recvd = 0;
+		req->rq_rcv_buf.len = 0;
+		if (task->tk_client->cl_discrtry)
+			xprt_conditional_disconnect(req->rq_xprt,
+						    req->rq_connect_cookie);
 		task->tk_action = call_encode;
 		rpc_check_timeout(task);
+		break;
+	case -EKEYREJECTED:
+		task->tk_action = call_reserve;
+		rpc_check_timeout(task);
+		rpcauth_invalcred(task);
+		/* Ensure we obtain a new XID if we retry! */
+		xprt_release(task);
 	}
 }
 
@@ -2533,11 +2536,7 @@ out_msg_denied:
 			break;
 		task->tk_cred_retry--;
 		trace_rpc__stale_creds(task);
-		rpcauth_invalcred(task);
-		/* Ensure we obtain a new XID! */
-		xprt_release(task);
-		task->tk_action = call_reserve;
-		return -EAGAIN;
+		return -EKEYREJECTED;
 	case rpc_autherr_badcred:
 	case rpc_autherr_badverf:
 		/* possibly garbled cred/verf? */
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sunrpc/xprt.c linux-libre-5.1.21-gnu/net/sunrpc/xprt.c
--- linux-libre-5.1-gnu/net/sunrpc/xprt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sunrpc/xprt.c	2019-07-28 02:28:39.000000000 -0400
@@ -1006,6 +1006,8 @@ xprt_request_enqueue_receive(struct rpc_
 
 	if (!xprt_request_need_enqueue_receive(task, req))
 		return;
+
+	xprt_request_prepare(task->tk_rqstp);
 	spin_lock(&xprt->queue_lock);
 
 	/* Update the softirq receive buffer */
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sunrpc/xprtrdma/svc_rdma_transport.c linux-libre-5.1.21-gnu/net/sunrpc/xprtrdma/svc_rdma_transport.c
--- linux-libre-5.1-gnu/net/sunrpc/xprtrdma/svc_rdma_transport.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sunrpc/xprtrdma/svc_rdma_transport.c	2019-07-28 02:28:39.000000000 -0400
@@ -211,9 +211,14 @@ static void handle_connect_req(struct rd
 	/* Save client advertised inbound read limit for use later in accept. */
 	newxprt->sc_ord = param->initiator_depth;
 
-	/* Set the local and remote addresses in the transport */
 	sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.dst_addr;
 	svc_xprt_set_remote(&newxprt->sc_xprt, sa, svc_addr_len(sa));
+	/* The remote port is arbitrary and not under the control of the
+	 * client ULP. Set it to a fixed value so that the DRC continues
+	 * to be effective after a reconnect.
+	 */
+	rpc_set_port((struct sockaddr *)&newxprt->sc_xprt.xpt_remote, 0);
+
 	sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.src_addr;
 	svc_xprt_set_local(&newxprt->sc_xprt, sa, svc_addr_len(sa));
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/sunrpc/xprtsock.c linux-libre-5.1.21-gnu/net/sunrpc/xprtsock.c
--- linux-libre-5.1-gnu/net/sunrpc/xprtsock.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/sunrpc/xprtsock.c	2019-07-28 02:28:39.000000000 -0400
@@ -909,6 +909,7 @@ static int xs_nospace(struct rpc_rqst *r
 static void
 xs_stream_prepare_request(struct rpc_rqst *req)
 {
+	xdr_free_bvec(&req->rq_rcv_buf);
 	req->rq_task->tk_status = xdr_alloc_bvec(&req->rq_rcv_buf, GFP_KERNEL);
 }
 
@@ -950,6 +951,8 @@ static int xs_local_send_request(struct
 	struct sock_xprt *transport =
 				container_of(xprt, struct sock_xprt, xprt);
 	struct xdr_buf *xdr = &req->rq_snd_buf;
+	rpc_fraghdr rm = xs_stream_record_marker(xdr);
+	unsigned int msglen = rm ? req->rq_slen + sizeof(rm) : req->rq_slen;
 	int status;
 	int sent = 0;
 
@@ -964,9 +967,7 @@ static int xs_local_send_request(struct
 
 	req->rq_xtime = ktime_get();
 	status = xs_sendpages(transport->sock, NULL, 0, xdr,
-			      transport->xmit.offset,
-			      xs_stream_record_marker(xdr),
-			      &sent);
+			      transport->xmit.offset, rm, &sent);
 	dprintk("RPC:       %s(%u) = %d\n",
 			__func__, xdr->len - transport->xmit.offset, status);
 
@@ -976,7 +977,7 @@ static int xs_local_send_request(struct
 	if (likely(sent > 0) || status == 0) {
 		transport->xmit.offset += sent;
 		req->rq_bytes_sent = transport->xmit.offset;
-		if (likely(req->rq_bytes_sent >= req->rq_slen)) {
+		if (likely(req->rq_bytes_sent >= msglen)) {
 			req->rq_xmit_bytes_sent += transport->xmit.offset;
 			transport->xmit.offset = 0;
 			return 0;
@@ -1097,6 +1098,8 @@ static int xs_tcp_send_request(struct rp
 	struct rpc_xprt *xprt = req->rq_xprt;
 	struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
 	struct xdr_buf *xdr = &req->rq_snd_buf;
+	rpc_fraghdr rm = xs_stream_record_marker(xdr);
+	unsigned int msglen = rm ? req->rq_slen + sizeof(rm) : req->rq_slen;
 	bool vm_wait = false;
 	int status;
 	int sent;
@@ -1122,9 +1125,7 @@ static int xs_tcp_send_request(struct rp
 	while (1) {
 		sent = 0;
 		status = xs_sendpages(transport->sock, NULL, 0, xdr,
-				      transport->xmit.offset,
-				      xs_stream_record_marker(xdr),
-				      &sent);
+				      transport->xmit.offset, rm, &sent);
 
 		dprintk("RPC:       xs_tcp_send_request(%u) = %d\n",
 				xdr->len - transport->xmit.offset, status);
@@ -1133,7 +1134,7 @@ static int xs_tcp_send_request(struct rp
 		 * reset the count of bytes sent. */
 		transport->xmit.offset += sent;
 		req->rq_bytes_sent = transport->xmit.offset;
-		if (likely(req->rq_bytes_sent >= req->rq_slen)) {
+		if (likely(req->rq_bytes_sent >= msglen)) {
 			req->rq_xmit_bytes_sent += transport->xmit.offset;
 			transport->xmit.offset = 0;
 			return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tipc/core.c linux-libre-5.1.21-gnu/net/tipc/core.c
--- linux-libre-5.1-gnu/net/tipc/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tipc/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -75,9 +75,6 @@ static int __net_init tipc_init_net(stru
 		goto out_nametbl;
 
 	INIT_LIST_HEAD(&tn->dist_queue);
-	err = tipc_topsrv_start(net);
-	if (err)
-		goto out_subscr;
 
 	err = tipc_bcast_init(net);
 	if (err)
@@ -86,8 +83,6 @@ static int __net_init tipc_init_net(stru
 	return 0;
 
 out_bclink:
-	tipc_bcast_stop(net);
-out_subscr:
 	tipc_nametbl_stop(net);
 out_nametbl:
 	tipc_sk_rht_destroy(net);
@@ -97,7 +92,6 @@ out_sk_rht:
 
 static void __net_exit tipc_exit_net(struct net *net)
 {
-	tipc_topsrv_stop(net);
 	tipc_net_stop(net);
 	tipc_bcast_stop(net);
 	tipc_nametbl_stop(net);
@@ -111,6 +105,11 @@ static struct pernet_operations tipc_net
 	.size = sizeof(struct tipc_net),
 };
 
+static struct pernet_operations tipc_topsrv_net_ops = {
+	.init = tipc_topsrv_init_net,
+	.exit = tipc_topsrv_exit_net,
+};
+
 static int __init tipc_init(void)
 {
 	int err;
@@ -129,18 +128,22 @@ static int __init tipc_init(void)
 	if (err)
 		goto out_netlink_compat;
 
-	err = tipc_socket_init();
-	if (err)
-		goto out_socket;
-
 	err = tipc_register_sysctl();
 	if (err)
 		goto out_sysctl;
 
-	err = register_pernet_subsys(&tipc_net_ops);
+	err = register_pernet_device(&tipc_net_ops);
 	if (err)
 		goto out_pernet;
 
+	err = tipc_socket_init();
+	if (err)
+		goto out_socket;
+
+	err = register_pernet_device(&tipc_topsrv_net_ops);
+	if (err)
+		goto out_pernet_topsrv;
+
 	err = tipc_bearer_setup();
 	if (err)
 		goto out_bearer;
@@ -148,12 +151,14 @@ static int __init tipc_init(void)
 	pr_info("Started in single node mode\n");
 	return 0;
 out_bearer:
-	unregister_pernet_subsys(&tipc_net_ops);
+	unregister_pernet_device(&tipc_topsrv_net_ops);
+out_pernet_topsrv:
+	tipc_socket_stop();
+out_socket:
+	unregister_pernet_device(&tipc_net_ops);
 out_pernet:
 	tipc_unregister_sysctl();
 out_sysctl:
-	tipc_socket_stop();
-out_socket:
 	tipc_netlink_compat_stop();
 out_netlink_compat:
 	tipc_netlink_stop();
@@ -165,10 +170,11 @@ out_netlink:
 static void __exit tipc_exit(void)
 {
 	tipc_bearer_cleanup();
-	unregister_pernet_subsys(&tipc_net_ops);
+	unregister_pernet_device(&tipc_topsrv_net_ops);
+	tipc_socket_stop();
+	unregister_pernet_device(&tipc_net_ops);
 	tipc_netlink_stop();
 	tipc_netlink_compat_stop();
-	tipc_socket_stop();
 	tipc_unregister_sysctl();
 
 	pr_info("Deactivated\n");
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tipc/group.c linux-libre-5.1.21-gnu/net/tipc/group.c
--- linux-libre-5.1-gnu/net/tipc/group.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tipc/group.c	2019-07-28 02:28:39.000000000 -0400
@@ -218,6 +218,7 @@ void tipc_group_delete(struct net *net,
 
 	rbtree_postorder_for_each_entry_safe(m, tmp, tree, tree_node) {
 		tipc_group_proto_xmit(grp, m, GRP_LEAVE_MSG, &xmitq);
+		__skb_queue_purge(&m->deferredq);
 		list_del(&m->list);
 		kfree(m);
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tipc/netlink_compat.c linux-libre-5.1.21-gnu/net/tipc/netlink_compat.c
--- linux-libre-5.1-gnu/net/tipc/netlink_compat.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tipc/netlink_compat.c	2019-07-28 02:28:39.000000000 -0400
@@ -445,7 +445,11 @@ static int tipc_nl_compat_bearer_disable
 	if (!bearer)
 		return -EMSGSIZE;
 
-	len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_BEARER_NAME);
+	len = TLV_GET_DATA_LEN(msg->req);
+	if (len <= 0)
+		return -EINVAL;
+
+	len = min_t(int, len, TIPC_MAX_BEARER_NAME);
 	if (!string_is_valid(name, len))
 		return -EINVAL;
 
@@ -537,7 +541,11 @@ static int tipc_nl_compat_link_stat_dump
 
 	name = (char *)TLV_DATA(msg->req);
 
-	len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME);
+	len = TLV_GET_DATA_LEN(msg->req);
+	if (len <= 0)
+		return -EINVAL;
+
+	len = min_t(int, len, TIPC_MAX_BEARER_NAME);
 	if (!string_is_valid(name, len))
 		return -EINVAL;
 
@@ -815,7 +823,11 @@ static int tipc_nl_compat_link_reset_sta
 	if (!link)
 		return -EMSGSIZE;
 
-	len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME);
+	len = TLV_GET_DATA_LEN(msg->req);
+	if (len <= 0)
+		return -EINVAL;
+
+	len = min_t(int, len, TIPC_MAX_BEARER_NAME);
 	if (!string_is_valid(name, len))
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tipc/socket.c linux-libre-5.1.21-gnu/net/tipc/socket.c
--- linux-libre-5.1-gnu/net/tipc/socket.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tipc/socket.c	2019-07-28 02:28:39.000000000 -0400
@@ -734,11 +734,11 @@ static __poll_t tipc_poll(struct file *f
 
 	switch (sk->sk_state) {
 	case TIPC_ESTABLISHED:
-	case TIPC_CONNECTING:
 		if (!tsk->cong_link_cnt && !tsk_conn_cong(tsk))
 			revents |= EPOLLOUT;
 		/* fall through */
 	case TIPC_LISTEN:
+	case TIPC_CONNECTING:
 		if (!skb_queue_empty(&sk->sk_receive_queue))
 			revents |= EPOLLIN | EPOLLRDNORM;
 		break;
@@ -2041,7 +2041,7 @@ static bool tipc_sk_filter_connect(struc
 			if (msg_data_sz(hdr))
 				return true;
 			/* Empty ACK-, - wake up sleeping connect() and drop */
-			sk->sk_data_ready(sk);
+			sk->sk_state_change(sk);
 			msg_set_dest_droppable(hdr, 1);
 			return false;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tipc/subscr.h linux-libre-5.1.21-gnu/net/tipc/subscr.h
--- linux-libre-5.1-gnu/net/tipc/subscr.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tipc/subscr.h	2019-07-28 02:28:39.000000000 -0400
@@ -77,8 +77,9 @@ void tipc_sub_report_overlap(struct tipc
 			     u32 found_lower, u32 found_upper,
 			     u32 event, u32 port, u32 node,
 			     u32 scope, int must);
-int tipc_topsrv_start(struct net *net);
-void tipc_topsrv_stop(struct net *net);
+
+int __net_init tipc_topsrv_init_net(struct net *net);
+void __net_exit tipc_topsrv_exit_net(struct net *net);
 
 void tipc_sub_put(struct tipc_subscription *subscription);
 void tipc_sub_get(struct tipc_subscription *subscription);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tipc/topsrv.c linux-libre-5.1.21-gnu/net/tipc/topsrv.c
--- linux-libre-5.1-gnu/net/tipc/topsrv.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tipc/topsrv.c	2019-07-28 02:28:39.000000000 -0400
@@ -635,7 +635,7 @@ static void tipc_topsrv_work_stop(struct
 	destroy_workqueue(s->send_wq);
 }
 
-int tipc_topsrv_start(struct net *net)
+static int tipc_topsrv_start(struct net *net)
 {
 	struct tipc_net *tn = tipc_net(net);
 	const char name[] = "topology_server";
@@ -668,7 +668,7 @@ int tipc_topsrv_start(struct net *net)
 	return ret;
 }
 
-void tipc_topsrv_stop(struct net *net)
+static void tipc_topsrv_stop(struct net *net)
 {
 	struct tipc_topsrv *srv = tipc_topsrv(net);
 	struct socket *lsock = srv->listener;
@@ -693,3 +693,13 @@ void tipc_topsrv_stop(struct net *net)
 	idr_destroy(&srv->conn_idr);
 	kfree(srv);
 }
+
+int __net_init tipc_topsrv_init_net(struct net *net)
+{
+	return tipc_topsrv_start(net);
+}
+
+void __net_exit tipc_topsrv_exit_net(struct net *net)
+{
+	tipc_topsrv_stop(net);
+}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tipc/udp_media.c linux-libre-5.1.21-gnu/net/tipc/udp_media.c
--- linux-libre-5.1-gnu/net/tipc/udp_media.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tipc/udp_media.c	2019-07-28 02:28:39.000000000 -0400
@@ -176,7 +176,6 @@ static int tipc_udp_xmit(struct net *net
 			goto tx_error;
 		}
 
-		skb->dev = rt->dst.dev;
 		ttl = ip4_dst_hoplimit(&rt->dst);
 		udp_tunnel_xmit_skb(rt, ub->ubsock->sk, skb, src->ipv4.s_addr,
 				    dst->ipv4.s_addr, 0, ttl, 0, src->port,
@@ -195,10 +194,9 @@ static int tipc_udp_xmit(struct net *net
 		if (err)
 			goto tx_error;
 		ttl = ip6_dst_hoplimit(ndst);
-		err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, skb,
-					   ndst->dev, &src->ipv6,
-					   &dst->ipv6, 0, ttl, 0, src->port,
-					   dst->port, false);
+		err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, skb, NULL,
+					   &src->ipv6, &dst->ipv6, 0, ttl, 0,
+					   src->port, dst->port, false);
 #endif
 	}
 	return err;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tls/tls_device.c linux-libre-5.1.21-gnu/net/tls/tls_device.c
--- linux-libre-5.1-gnu/net/tls/tls_device.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tls/tls_device.c	2019-07-28 02:28:39.000000000 -0400
@@ -61,7 +61,7 @@ static void tls_device_free_ctx(struct t
 	if (ctx->rx_conf == TLS_HW)
 		kfree(tls_offload_ctx_rx(ctx));
 
-	kfree(ctx);
+	tls_ctx_free(ctx);
 }
 
 static void tls_device_gc_task(struct work_struct *work)
@@ -570,10 +570,22 @@ void tls_device_write_space(struct sock
 	}
 }
 
+static void tls_device_resync_rx(struct tls_context *tls_ctx,
+				 struct sock *sk, u32 seq, u64 rcd_sn)
+{
+	struct net_device *netdev;
+
+	if (WARN_ON(test_and_set_bit(TLS_RX_SYNC_RUNNING, &tls_ctx->flags)))
+		return;
+	netdev = READ_ONCE(tls_ctx->netdev);
+	if (netdev)
+		netdev->tlsdev_ops->tls_dev_resync_rx(netdev, sk, seq, rcd_sn);
+	clear_bit_unlock(TLS_RX_SYNC_RUNNING, &tls_ctx->flags);
+}
+
 void handle_device_resync(struct sock *sk, u32 seq, u64 rcd_sn)
 {
 	struct tls_context *tls_ctx = tls_get_ctx(sk);
-	struct net_device *netdev = tls_ctx->netdev;
 	struct tls_offload_context_rx *rx_ctx;
 	u32 is_req_pending;
 	s64 resync_req;
@@ -588,10 +600,10 @@ void handle_device_resync(struct sock *s
 	is_req_pending = resync_req;
 
 	if (unlikely(is_req_pending) && req_seq == seq &&
-	    atomic64_try_cmpxchg(&rx_ctx->resync_req, &resync_req, 0))
-		netdev->tlsdev_ops->tls_dev_resync_rx(netdev, sk,
-						      seq + TLS_HEADER_SIZE - 1,
-						      rcd_sn);
+	    atomic64_try_cmpxchg(&rx_ctx->resync_req, &resync_req, 0)) {
+		seq += TLS_HEADER_SIZE - 1;
+		tls_device_resync_rx(tls_ctx, sk, seq, rcd_sn);
+	}
 }
 
 static int tls_device_reencrypt(struct sock *sk, struct sk_buff *skb)
@@ -734,6 +746,11 @@ int tls_set_device_offload(struct sock *
 	}
 
 	crypto_info = &ctx->crypto_send.info;
+	if (crypto_info->version != TLS_1_2_VERSION) {
+		rc = -EOPNOTSUPP;
+		goto free_offload_ctx;
+	}
+
 	switch (crypto_info->cipher_type) {
 	case TLS_CIPHER_AES_GCM_128:
 		nonce_size = TLS_CIPHER_AES_GCM_128_IV_SIZE;
@@ -868,6 +885,9 @@ int tls_set_device_offload_rx(struct soc
 	struct net_device *netdev;
 	int rc = 0;
 
+	if (ctx->crypto_recv.info.version != TLS_1_2_VERSION)
+		return -EOPNOTSUPP;
+
 	/* We support starting offload on multiple sockets
 	 * concurrently, so we only need a read lock here.
 	 * This lock must precede get_netdev_for_sock to prevent races between
@@ -943,12 +963,6 @@ void tls_device_offload_cleanup_rx(struc
 	if (!netdev)
 		goto out;
 
-	if (!(netdev->features & NETIF_F_HW_TLS_RX)) {
-		pr_err_ratelimited("%s: device is missing NETIF_F_HW_TLS_RX cap\n",
-				   __func__);
-		goto out;
-	}
-
 	netdev->tlsdev_ops->tls_dev_del(netdev, tls_ctx,
 					TLS_OFFLOAD_CTX_DIR_RX);
 
@@ -987,7 +1001,10 @@ static int tls_device_down(struct net_de
 		if (ctx->rx_conf == TLS_HW)
 			netdev->tlsdev_ops->tls_dev_del(netdev, ctx,
 							TLS_OFFLOAD_CTX_DIR_RX);
-		ctx->netdev = NULL;
+		WRITE_ONCE(ctx->netdev, NULL);
+		smp_mb__before_atomic(); /* pairs with test_and_set_bit() */
+		while (test_bit(TLS_RX_SYNC_RUNNING, &ctx->flags))
+			usleep_range(10, 200);
 		dev_put(netdev);
 		list_del_init(&ctx->list);
 
@@ -1007,7 +1024,8 @@ static int tls_dev_event(struct notifier
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
-	if (!(dev->features & (NETIF_F_HW_TLS_RX | NETIF_F_HW_TLS_TX)))
+	if (!dev->tlsdev_ops &&
+	    !(dev->features & (NETIF_F_HW_TLS_RX | NETIF_F_HW_TLS_TX)))
 		return NOTIFY_DONE;
 
 	switch (event) {
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tls/tls_main.c linux-libre-5.1.21-gnu/net/tls/tls_main.c
--- linux-libre-5.1-gnu/net/tls/tls_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tls/tls_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -251,7 +251,7 @@ static void tls_write_space(struct sock
 	ctx->sk_write_space(sk);
 }
 
-static void tls_ctx_free(struct tls_context *ctx)
+void tls_ctx_free(struct tls_context *ctx)
 {
 	if (!ctx)
 		return;
@@ -279,7 +279,8 @@ static void tls_sk_proto_close(struct so
 		goto skip_tx_cleanup;
 	}
 
-	if (!tls_complete_pending_work(sk, ctx, 0, &timeo))
+	if (unlikely(sk->sk_write_pending) &&
+	    !wait_on_pending_writer(sk, &timeo))
 		tls_handle_open_record(sk, 0);
 
 	/* We need these for tls_sw_fallback handling of other packets */
@@ -637,7 +638,7 @@ static void tls_hw_sk_destruct(struct so
 
 	ctx->sk_destruct(sk);
 	/* Free ctx */
-	kfree(ctx);
+	tls_ctx_free(ctx);
 	icsk->icsk_ulp_data = NULL;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/tls/tls_sw.c linux-libre-5.1.21-gnu/net/tls/tls_sw.c
--- linux-libre-5.1-gnu/net/tls/tls_sw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/tls/tls_sw.c	2019-07-28 02:28:39.000000000 -0400
@@ -1128,7 +1128,6 @@ static int tls_sw_do_sendpage(struct soc
 
 		full_record = false;
 		record_room = TLS_MAX_PAYLOAD_SIZE - msg_pl->sg.size;
-		copied = 0;
 		copy = size;
 		if (copy >= record_room) {
 			copy = record_room;
@@ -1685,15 +1684,14 @@ int tls_sw_recvmsg(struct sock *sk,
 		copied = err;
 	}
 
-	len = len - copied;
-	if (len) {
-		target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);
-		timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
-	} else {
+	if (len <= copied)
 		goto recv_end;
-	}
 
-	do {
+	target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);
+	len = len - copied;
+	timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
+
+	while (len && (decrypted + copied < target || ctx->recv_pkt)) {
 		bool retain_skb = false;
 		bool zc = false;
 		int to_decrypt;
@@ -1824,11 +1822,7 @@ pick_next_record:
 		} else {
 			break;
 		}
-
-		/* If we have a new message from strparser, continue now. */
-		if (decrypted >= target && !ctx->recv_pkt)
-			break;
-	} while (len);
+	}
 
 recv_end:
 	if (num_async) {
@@ -1937,7 +1931,8 @@ bool tls_sw_stream_read(const struct soc
 		ingress_empty = list_empty(&psock->ingress_msg);
 	rcu_read_unlock();
 
-	return !ingress_empty || ctx->recv_pkt;
+	return !ingress_empty || ctx->recv_pkt ||
+		!skb_queue_empty(&ctx->rx_list);
 }
 
 static int tls_read_size(struct strparser *strp, struct sk_buff *skb)
diff -druNp --no-dereference linux-libre-5.1-gnu/net/vmw_vsock/virtio_transport.c linux-libre-5.1.21-gnu/net/vmw_vsock/virtio_transport.c
--- linux-libre-5.1-gnu/net/vmw_vsock/virtio_transport.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/vmw_vsock/virtio_transport.c	2019-07-28 02:28:39.000000000 -0400
@@ -702,28 +702,27 @@ static int __init virtio_vsock_init(void
 	if (!virtio_vsock_workqueue)
 		return -ENOMEM;
 
-	ret = register_virtio_driver(&virtio_vsock_driver);
+	ret = vsock_core_init(&virtio_transport.transport);
 	if (ret)
 		goto out_wq;
 
-	ret = vsock_core_init(&virtio_transport.transport);
+	ret = register_virtio_driver(&virtio_vsock_driver);
 	if (ret)
-		goto out_vdr;
+		goto out_vci;
 
 	return 0;
 
-out_vdr:
-	unregister_virtio_driver(&virtio_vsock_driver);
+out_vci:
+	vsock_core_exit();
 out_wq:
 	destroy_workqueue(virtio_vsock_workqueue);
 	return ret;
-
 }
 
 static void __exit virtio_vsock_exit(void)
 {
-	vsock_core_exit();
 	unregister_virtio_driver(&virtio_vsock_driver);
+	vsock_core_exit();
 	destroy_workqueue(virtio_vsock_workqueue);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/vmw_vsock/virtio_transport_common.c linux-libre-5.1.21-gnu/net/vmw_vsock/virtio_transport_common.c
--- linux-libre-5.1-gnu/net/vmw_vsock/virtio_transport_common.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/vmw_vsock/virtio_transport_common.c	2019-07-28 02:28:39.000000000 -0400
@@ -786,12 +786,19 @@ static bool virtio_transport_close(struc
 
 void virtio_transport_release(struct vsock_sock *vsk)
 {
+	struct virtio_vsock_sock *vvs = vsk->trans;
+	struct virtio_vsock_pkt *pkt, *tmp;
 	struct sock *sk = &vsk->sk;
 	bool remove_sock = true;
 
 	lock_sock(sk);
 	if (sk->sk_type == SOCK_STREAM)
 		remove_sock = virtio_transport_close(vsk);
+
+	list_for_each_entry_safe(pkt, tmp, &vvs->rx_queue, list) {
+		list_del(&pkt->list);
+		virtio_transport_free_pkt(pkt);
+	}
 	release_sock(sk);
 
 	if (remove_sock)
@@ -864,8 +871,10 @@ virtio_transport_recv_connected(struct s
 		if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SHUTDOWN_SEND)
 			vsk->peer_shutdown |= SEND_SHUTDOWN;
 		if (vsk->peer_shutdown == SHUTDOWN_MASK &&
-		    vsock_stream_has_data(vsk) <= 0)
+		    vsock_stream_has_data(vsk) <= 0) {
+			sock_set_flag(sk, SOCK_DONE);
 			sk->sk_state = TCP_CLOSING;
+		}
 		if (le32_to_cpu(pkt->hdr.flags))
 			sk->sk_state_change(sk);
 		break;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/wireless/core.c linux-libre-5.1.21-gnu/net/wireless/core.c
--- linux-libre-5.1-gnu/net/wireless/core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/wireless/core.c	2019-07-28 02:28:39.000000000 -0400
@@ -513,7 +513,7 @@ use_default_name:
 				   &rdev->rfkill_ops, rdev);
 
 	if (!rdev->rfkill) {
-		kfree(rdev);
+		wiphy_free(&rdev->wiphy);
 		return NULL;
 	}
 
@@ -1396,8 +1396,12 @@ static int cfg80211_netdev_notifier_call
 		}
 		break;
 	case NETDEV_PRE_UP:
-		if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
+		if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)) &&
+		    !(wdev->iftype == NL80211_IFTYPE_AP_VLAN &&
+		      rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP &&
+		      wdev->use_4addr))
 			return notifier_from_errno(-EOPNOTSUPP);
+
 		if (rfkill_blocked(rdev->rfkill))
 			return notifier_from_errno(-ERFKILL);
 		break;
diff -druNp --no-dereference linux-libre-5.1-gnu/net/wireless/nl80211.c linux-libre-5.1.21-gnu/net/wireless/nl80211.c
--- linux-libre-5.1-gnu/net/wireless/nl80211.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/wireless/nl80211.c	2019-07-28 02:28:39.000000000 -0400
@@ -3385,8 +3385,7 @@ static int nl80211_new_interface(struct
 	if (info->attrs[NL80211_ATTR_IFTYPE])
 		type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
 
-	if (!rdev->ops->add_virtual_intf ||
-	    !(rdev->wiphy.interface_modes & (1 << type)))
+	if (!rdev->ops->add_virtual_intf)
 		return -EOPNOTSUPP;
 
 	if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
@@ -3405,6 +3404,11 @@ static int nl80211_new_interface(struct
 			return err;
 	}
 
+	if (!(rdev->wiphy.interface_modes & (1 << type)) &&
+	    !(type == NL80211_IFTYPE_AP_VLAN && params.use_4addr &&
+	      rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP))
+		return -EOPNOTSUPP;
+
 	err = nl80211_parse_mon_options(rdev, type, info, &params);
 	if (err < 0)
 		return err;
@@ -4800,8 +4804,10 @@ static int nl80211_send_station(struct s
 	struct nlattr *sinfoattr, *bss_param;
 
 	hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
-	if (!hdr)
+	if (!hdr) {
+		cfg80211_sinfo_release_content(sinfo);
 		return -1;
+	}
 
 	if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
 	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
@@ -15727,6 +15733,11 @@ void cfg80211_ch_switch_notify(struct ne
 
 	wdev->chandef = *chandef;
 	wdev->preset_chandef = *chandef;
+
+	if (wdev->iftype == NL80211_IFTYPE_STATION &&
+	    !WARN_ON(!wdev->current_bss))
+		wdev->current_bss->pub.channel = chandef->chan;
+
 	nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
 				 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/net/wireless/pmsr.c linux-libre-5.1.21-gnu/net/wireless/pmsr.c
--- linux-libre-5.1-gnu/net/wireless/pmsr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/wireless/pmsr.c	2019-07-28 02:28:39.000000000 -0400
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2018 Intel Corporation
+ * Copyright (C) 2018 - 2019 Intel Corporation
  */
 #ifndef __PMSR_H
 #define __PMSR_H
@@ -446,7 +446,7 @@ static int nl80211_pmsr_send_result(stru
 
 	if (res->ap_tsf_valid &&
 	    nla_put_u64_64bit(msg, NL80211_PMSR_RESP_ATTR_AP_TSF,
-			      res->host_time, NL80211_PMSR_RESP_ATTR_PAD))
+			      res->ap_tsf, NL80211_PMSR_RESP_ATTR_PAD))
 		goto error;
 
 	if (res->final && nla_put_flag(msg, NL80211_PMSR_RESP_ATTR_FINAL))
diff -druNp --no-dereference linux-libre-5.1-gnu/net/wireless/util.c linux-libre-5.1.21-gnu/net/wireless/util.c
--- linux-libre-5.1-gnu/net/wireless/util.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/wireless/util.c	2019-07-28 02:28:39.000000000 -0400
@@ -1237,7 +1237,7 @@ static u32 cfg80211_calculate_bitrate_he
 	if (rate->he_dcm)
 		result /= 2;
 
-	return result;
+	return result / 10000;
 }
 
 u32 cfg80211_calculate_bitrate(struct rate_info *rate)
@@ -1989,7 +1989,7 @@ int ieee80211_get_vht_max_nss(struct iee
 			continue;
 
 		if (supp >= mcs_encoding) {
-			max_vht_nss = i;
+			max_vht_nss = i + 1;
 			break;
 		}
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/net/xdp/xdp_umem.c linux-libre-5.1.21-gnu/net/xdp/xdp_umem.c
--- linux-libre-5.1-gnu/net/xdp/xdp_umem.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/xdp/xdp_umem.c	2019-07-28 02:28:39.000000000 -0400
@@ -143,6 +143,9 @@ static void xdp_umem_clear_dev(struct xd
 	struct netdev_bpf bpf;
 	int err;
 
+	if (!umem->dev)
+		return;
+
 	if (umem->zc) {
 		bpf.command = XDP_SETUP_XSK_UMEM;
 		bpf.xsk.umem = NULL;
@@ -156,11 +159,9 @@ static void xdp_umem_clear_dev(struct xd
 			WARN(1, "failed to disable umem!\n");
 	}
 
-	if (umem->dev) {
-		rtnl_lock();
-		xdp_clear_umem_at_qid(umem->dev, umem->queue_id);
-		rtnl_unlock();
-	}
+	rtnl_lock();
+	xdp_clear_umem_at_qid(umem->dev, umem->queue_id);
+	rtnl_unlock();
 
 	if (umem->zc) {
 		dev_put(umem->dev);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/xdp/xsk.c linux-libre-5.1.21-gnu/net/xdp/xsk.c
--- linux-libre-5.1-gnu/net/xdp/xsk.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/xdp/xsk.c	2019-07-28 02:28:39.000000000 -0400
@@ -123,13 +123,17 @@ int xsk_generic_rcv(struct xdp_sock *xs,
 	u64 addr;
 	int err;
 
-	if (xs->dev != xdp->rxq->dev || xs->queue_id != xdp->rxq->queue_index)
-		return -EINVAL;
+	spin_lock_bh(&xs->rx_lock);
+
+	if (xs->dev != xdp->rxq->dev || xs->queue_id != xdp->rxq->queue_index) {
+		err = -EINVAL;
+		goto out_unlock;
+	}
 
 	if (!xskq_peek_addr(xs->umem->fq, &addr) ||
 	    len > xs->umem->chunk_size_nohr - XDP_PACKET_HEADROOM) {
-		xs->rx_dropped++;
-		return -ENOSPC;
+		err = -ENOSPC;
+		goto out_drop;
 	}
 
 	addr += xs->umem->headroom;
@@ -138,13 +142,21 @@ int xsk_generic_rcv(struct xdp_sock *xs,
 	memcpy(buffer, xdp->data_meta, len + metalen);
 	addr += metalen;
 	err = xskq_produce_batch_desc(xs->rx, addr, len);
-	if (!err) {
-		xskq_discard_addr(xs->umem->fq);
-		xsk_flush(xs);
-		return 0;
-	}
+	if (err)
+		goto out_drop;
+
+	xskq_discard_addr(xs->umem->fq);
+	xskq_produce_flush_desc(xs->rx);
+
+	spin_unlock_bh(&xs->rx_lock);
 
+	xs->sk.sk_data_ready(&xs->sk);
+	return 0;
+
+out_drop:
 	xs->rx_dropped++;
+out_unlock:
+	spin_unlock_bh(&xs->rx_lock);
 	return err;
 }
 
@@ -765,6 +777,7 @@ static int xsk_create(struct net *net, s
 
 	xs = xdp_sk(sk);
 	mutex_init(&xs->mutex);
+	spin_lock_init(&xs->rx_lock);
 	spin_lock_init(&xs->tx_completion_lock);
 
 	mutex_lock(&net->xdp.lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/net/xdp/xsk_queue.h linux-libre-5.1.21-gnu/net/xdp/xsk_queue.h
--- linux-libre-5.1-gnu/net/xdp/xsk_queue.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/xdp/xsk_queue.h	2019-07-28 02:28:39.000000000 -0400
@@ -240,7 +240,7 @@ static inline void xskq_produce_flush_de
 	/* Order producer and data */
 	smp_wmb();
 
-	q->prod_tail = q->prod_head,
+	q->prod_tail = q->prod_head;
 	WRITE_ONCE(q->ring->producer, q->prod_tail);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/net/xfrm/Kconfig linux-libre-5.1.21-gnu/net/xfrm/Kconfig
--- linux-libre-5.1-gnu/net/xfrm/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/xfrm/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -14,6 +14,8 @@ config XFRM_ALGO
 	tristate
 	select XFRM
 	select CRYPTO
+	select CRYPTO_HASH
+	select CRYPTO_BLKCIPHER
 
 config XFRM_USER
 	tristate "Transformation user configuration interface"
diff -druNp --no-dereference linux-libre-5.1-gnu/net/xfrm/xfrm_user.c linux-libre-5.1.21-gnu/net/xfrm/xfrm_user.c
--- linux-libre-5.1-gnu/net/xfrm/xfrm_user.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/net/xfrm/xfrm_user.c	2019-07-28 02:28:39.000000000 -0400
@@ -151,6 +151,25 @@ static int verify_newsa_info(struct xfrm
 	err = -EINVAL;
 	switch (p->family) {
 	case AF_INET:
+		break;
+
+	case AF_INET6:
+#if IS_ENABLED(CONFIG_IPV6)
+		break;
+#else
+		err = -EAFNOSUPPORT;
+		goto out;
+#endif
+
+	default:
+		goto out;
+	}
+
+	switch (p->sel.family) {
+	case AF_UNSPEC:
+		break;
+
+	case AF_INET:
 		if (p->sel.prefixlen_d > 32 || p->sel.prefixlen_s > 32)
 			goto out;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/samples/bpf/asm_goto_workaround.h linux-libre-5.1.21-gnu/samples/bpf/asm_goto_workaround.h
--- linux-libre-5.1-gnu/samples/bpf/asm_goto_workaround.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/samples/bpf/asm_goto_workaround.h	2019-07-28 02:28:39.000000000 -0400
@@ -13,4 +13,5 @@
 #define asm_volatile_goto(x...) asm volatile("invalid use of asm_volatile_goto")
 #endif
 
+#define volatile(x...) volatile("")
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/samples/bpf/bpf_load.c linux-libre-5.1.21-gnu/samples/bpf/bpf_load.c
--- linux-libre-5.1-gnu/samples/bpf/bpf_load.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/samples/bpf/bpf_load.c	2019-07-28 02:28:39.000000000 -0400
@@ -678,7 +678,7 @@ void read_trace_pipe(void)
 		static char buf[4096];
 		ssize_t sz;
 
-		sz = read(trace_fd, buf, sizeof(buf));
+		sz = read(trace_fd, buf, sizeof(buf) - 1);
 		if (sz > 0) {
 			buf[sz] = 0;
 			puts(buf);
diff -druNp --no-dereference linux-libre-5.1-gnu/samples/bpf/task_fd_query_user.c linux-libre-5.1.21-gnu/samples/bpf/task_fd_query_user.c
--- linux-libre-5.1-gnu/samples/bpf/task_fd_query_user.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/samples/bpf/task_fd_query_user.c	2019-07-28 02:28:39.000000000 -0400
@@ -216,7 +216,7 @@ static int test_debug_fs_uprobe(char *bi
 {
 	const char *event_type = "uprobe";
 	struct perf_event_attr attr = {};
-	char buf[256], event_alias[256];
+	char buf[256], event_alias[sizeof("test_1234567890")];
 	__u64 probe_offset, probe_addr;
 	__u32 len, prog_id, fd_type;
 	int err, res, kfd, efd;
diff -druNp --no-dereference linux-libre-5.1-gnu/scripts/checkstack.pl linux-libre-5.1.21-gnu/scripts/checkstack.pl
--- linux-libre-5.1-gnu/scripts/checkstack.pl	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/scripts/checkstack.pl	2019-07-28 02:28:39.000000000 -0400
@@ -46,7 +46,7 @@ my (@stack, $re, $dre, $x, $xs, $funcre)
 	$x	= "[0-9a-f]";	# hex character
 	$xs	= "[0-9a-f ]";	# hex character or space
 	$funcre = qr/^$x* <(.*)>:$/;
-	if ($arch eq 'aarch64') {
+	if ($arch =~ '^(aarch|arm)64$') {
 		#ffffffc0006325cc:       a9bb7bfd        stp     x29, x30, [sp, #-80]!
 		#a110:       d11643ff        sub     sp, sp, #0x590
 		$re = qr/^.*stp.*sp, \#-([0-9]{1,8})\]\!/o;
diff -druNp --no-dereference linux-libre-5.1-gnu/scripts/decode_stacktrace.sh linux-libre-5.1.21-gnu/scripts/decode_stacktrace.sh
--- linux-libre-5.1-gnu/scripts/decode_stacktrace.sh	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/scripts/decode_stacktrace.sh	2019-07-28 02:28:39.000000000 -0400
@@ -73,7 +73,7 @@ parse_symbol() {
 	if [[ "${cache[$module,$address]+isset}" == "isset" ]]; then
 		local code=${cache[$module,$address]}
 	else
-		local code=$(addr2line -i -e "$objfile" "$address")
+		local code=$(${CROSS_COMPILE}addr2line -i -e "$objfile" "$address")
 		cache[$module,$address]=$code
 	fi
 
diff -druNp --no-dereference linux-libre-5.1-gnu/scripts/gcc-plugins/arm_ssp_per_task_plugin.c linux-libre-5.1.21-gnu/scripts/gcc-plugins/arm_ssp_per_task_plugin.c
--- linux-libre-5.1-gnu/scripts/gcc-plugins/arm_ssp_per_task_plugin.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/scripts/gcc-plugins/arm_ssp_per_task_plugin.c	2019-07-28 02:28:39.000000000 -0400
@@ -36,7 +36,7 @@ static unsigned int arm_pertask_ssp_rtl_
 		mask = GEN_INT(sext_hwi(sp_mask, GET_MODE_PRECISION(Pmode)));
 		masked_sp = gen_reg_rtx(Pmode);
 
-		emit_insn_before(gen_rtx_SET(masked_sp,
+		emit_insn_before(gen_rtx_set(masked_sp,
 					     gen_rtx_AND(Pmode,
 							 stack_pointer_rtx,
 							 mask)),
diff -druNp --no-dereference linux-libre-5.1-gnu/scripts/gcc-plugins/gcc-common.h linux-libre-5.1.21-gnu/scripts/gcc-plugins/gcc-common.h
--- linux-libre-5.1-gnu/scripts/gcc-plugins/gcc-common.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/scripts/gcc-plugins/gcc-common.h	2019-07-28 02:28:39.000000000 -0400
@@ -150,8 +150,12 @@ void print_gimple_expr(FILE *, gimple, i
 void dump_gimple_stmt(pretty_printer *, gimple, int, int);
 #endif
 
+#ifndef __unused
 #define __unused __attribute__((__unused__))
+#endif
+#ifndef __visible
 #define __visible __attribute__((visibility("default")))
+#endif
 
 #define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
 #define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
diff -druNp --no-dereference linux-libre-5.1-gnu/scripts/Kbuild.include linux-libre-5.1.21-gnu/scripts/Kbuild.include
--- linux-libre-5.1-gnu/scripts/Kbuild.include	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/scripts/Kbuild.include	2019-07-28 02:28:39.000000000 -0400
@@ -73,8 +73,13 @@ endef
 # Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
 # Return first <prefix> where a <prefix>gcc is found in PATH.
 # If no gcc found in PATH with listed prefixes return nothing
+#
+# Note: '2>/dev/null' is here to force Make to invoke a shell. Otherwise, it
+# would try to directly execute the shell builtin 'command'. This workaround
+# should be kept for a long time since this issue was fixed only after the
+# GNU Make 4.2.1 release.
 cc-cross-prefix = $(firstword $(foreach c, $(filter-out -%, $(1)), \
-					$(if $(shell which $(c)gcc), $(c))))
+			$(if $(shell command -v $(c)gcc 2>/dev/null), $(c))))
 
 # output directory for tests below
 TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
diff -druNp --no-dereference linux-libre-5.1-gnu/scripts/kconfig/confdata.c linux-libre-5.1.21-gnu/scripts/kconfig/confdata.c
--- linux-libre-5.1-gnu/scripts/kconfig/confdata.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/scripts/kconfig/confdata.c	2019-07-28 02:28:39.000000000 -0400
@@ -871,11 +871,12 @@ int conf_write(const char *name)
 				     "#\n"
 				     "# %s\n"
 				     "#\n", str);
-		} else if (!(sym->flags & SYMBOL_CHOICE)) {
+		} else if (!(sym->flags & SYMBOL_CHOICE) &&
+			   !(sym->flags & SYMBOL_WRITTEN)) {
 			sym_calc_value(sym);
 			if (!(sym->flags & SYMBOL_WRITE))
 				goto next;
-			sym->flags &= ~SYMBOL_WRITE;
+			sym->flags |= SYMBOL_WRITTEN;
 
 			conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
 		}
@@ -1026,8 +1027,6 @@ int conf_write_autoconf(int overwrite)
 	if (!overwrite && is_present(autoconf_name))
 		return 0;
 
-	sym_clear_all_valid();
-
 	conf_write_dep("include/config/auto.conf.cmd");
 
 	if (conf_touch_deps())
diff -druNp --no-dereference linux-libre-5.1-gnu/scripts/kconfig/expr.h linux-libre-5.1.21-gnu/scripts/kconfig/expr.h
--- linux-libre-5.1-gnu/scripts/kconfig/expr.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/scripts/kconfig/expr.h	2019-07-28 02:28:39.000000000 -0400
@@ -141,6 +141,7 @@ struct symbol {
 #define SYMBOL_OPTIONAL   0x0100  /* choice is optional - values can be 'n' */
 #define SYMBOL_WRITE      0x0200  /* write symbol to file (KCONFIG_CONFIG) */
 #define SYMBOL_CHANGED    0x0400  /* ? */
+#define SYMBOL_WRITTEN    0x0800  /* track info to avoid double-write to .config */
 #define SYMBOL_NO_WRITE   0x1000  /* Symbol for internal use only; it will not be written */
 #define SYMBOL_CHECKED    0x2000  /* used during dependency checking */
 #define SYMBOL_WARNED     0x8000  /* warning has been issued */
diff -druNp --no-dereference linux-libre-5.1-gnu/scripts/package/Makefile linux-libre-5.1.21-gnu/scripts/package/Makefile
--- linux-libre-5.1-gnu/scripts/package/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/scripts/package/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -103,7 +103,7 @@ clean-dirs += $(objtree)/snap/
 # ---------------------------------------------------------------------------
 tar%pkg: FORCE
 	$(MAKE) -f $(srctree)/Makefile
-	$(CONFIG_SHELL) $(srctree)/scripts/package/buildtar $@
+	+$(CONFIG_SHELL) $(srctree)/scripts/package/buildtar $@
 
 clean-dirs += $(objtree)/tar-install/
 
diff -druNp --no-dereference linux-libre-5.1-gnu/security/apparmor/include/policy.h linux-libre-5.1.21-gnu/security/apparmor/include/policy.h
--- linux-libre-5.1-gnu/security/apparmor/include/policy.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/apparmor/include/policy.h	2019-07-28 02:28:39.000000000 -0400
@@ -217,7 +217,16 @@ static inline struct aa_profile *aa_get_
 	return labels_profile(aa_get_newest_label(&p->label));
 }
 
-#define PROFILE_MEDIATES(P, T)  ((P)->policy.start[(unsigned char) (T)])
+static inline unsigned int PROFILE_MEDIATES(struct aa_profile *profile,
+					    unsigned char class)
+{
+	if (class <= AA_CLASS_LAST)
+		return profile->policy.start[class];
+	else
+		return aa_dfa_match_len(profile->policy.dfa,
+					profile->policy.start[0], &class, 1);
+}
+
 static inline unsigned int PROFILE_MEDIATES_AF(struct aa_profile *profile,
 					       u16 AF) {
 	unsigned int state = PROFILE_MEDIATES(profile, AA_CLASS_NET);
diff -druNp --no-dereference linux-libre-5.1-gnu/security/apparmor/policy_unpack.c linux-libre-5.1.21-gnu/security/apparmor/policy_unpack.c
--- linux-libre-5.1-gnu/security/apparmor/policy_unpack.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/apparmor/policy_unpack.c	2019-07-28 02:28:39.000000000 -0400
@@ -223,16 +223,21 @@ static void *kvmemdup(const void *src, s
 static size_t unpack_u16_chunk(struct aa_ext *e, char **chunk)
 {
 	size_t size = 0;
+	void *pos = e->pos;
 
 	if (!inbounds(e, sizeof(u16)))
-		return 0;
+		goto fail;
 	size = le16_to_cpu(get_unaligned((__le16 *) e->pos));
 	e->pos += sizeof(__le16);
 	if (!inbounds(e, size))
-		return 0;
+		goto fail;
 	*chunk = e->pos;
 	e->pos += size;
 	return size;
+
+fail:
+	e->pos = pos;
+	return 0;
 }
 
 /* unpack control byte */
@@ -276,7 +281,7 @@ static bool unpack_nameX(struct aa_ext *
 		char *tag = NULL;
 		size_t size = unpack_u16_chunk(e, &tag);
 		/* if a name is specified it must match. otherwise skip tag */
-		if (name && (!size || strcmp(name, tag)))
+		if (name && (!size || tag[size-1] != '\0' || strcmp(name, tag)))
 			goto fail;
 	} else if (name) {
 		/* if a name is specified and there is no name tag fail */
@@ -294,62 +299,84 @@ fail:
 
 static bool unpack_u8(struct aa_ext *e, u8 *data, const char *name)
 {
+	void *pos = e->pos;
+
 	if (unpack_nameX(e, AA_U8, name)) {
 		if (!inbounds(e, sizeof(u8)))
-			return 0;
+			goto fail;
 		if (data)
 			*data = get_unaligned((u8 *)e->pos);
 		e->pos += sizeof(u8);
 		return 1;
 	}
+
+fail:
+	e->pos = pos;
 	return 0;
 }
 
 static bool unpack_u32(struct aa_ext *e, u32 *data, const char *name)
 {
+	void *pos = e->pos;
+
 	if (unpack_nameX(e, AA_U32, name)) {
 		if (!inbounds(e, sizeof(u32)))
-			return 0;
+			goto fail;
 		if (data)
 			*data = le32_to_cpu(get_unaligned((__le32 *) e->pos));
 		e->pos += sizeof(u32);
 		return 1;
 	}
+
+fail:
+	e->pos = pos;
 	return 0;
 }
 
 static bool unpack_u64(struct aa_ext *e, u64 *data, const char *name)
 {
+	void *pos = e->pos;
+
 	if (unpack_nameX(e, AA_U64, name)) {
 		if (!inbounds(e, sizeof(u64)))
-			return 0;
+			goto fail;
 		if (data)
 			*data = le64_to_cpu(get_unaligned((__le64 *) e->pos));
 		e->pos += sizeof(u64);
 		return 1;
 	}
+
+fail:
+	e->pos = pos;
 	return 0;
 }
 
 static size_t unpack_array(struct aa_ext *e, const char *name)
 {
+	void *pos = e->pos;
+
 	if (unpack_nameX(e, AA_ARRAY, name)) {
 		int size;
 		if (!inbounds(e, sizeof(u16)))
-			return 0;
+			goto fail;
 		size = (int)le16_to_cpu(get_unaligned((__le16 *) e->pos));
 		e->pos += sizeof(u16);
 		return size;
 	}
+
+fail:
+	e->pos = pos;
 	return 0;
 }
 
 static size_t unpack_blob(struct aa_ext *e, char **blob, const char *name)
 {
+	void *pos = e->pos;
+
 	if (unpack_nameX(e, AA_BLOB, name)) {
 		u32 size;
 		if (!inbounds(e, sizeof(u32)))
-			return 0;
+			goto fail;
 		size = le32_to_cpu(get_unaligned((__le32 *) e->pos));
 		e->pos += sizeof(u32);
 		if (inbounds(e, (size_t) size)) {
@@ -358,6 +385,9 @@ static size_t unpack_blob(struct aa_ext
 			return size;
 		}
 	}
+
+fail:
+	e->pos = pos;
 	return 0;
 }
 
@@ -374,9 +404,10 @@ static int unpack_str(struct aa_ext *e,
 			if (src_str[size - 1] != 0)
 				goto fail;
 			*string = src_str;
+
+			return size;
 		}
 	}
-	return size;
 
 fail:
 	e->pos = pos;
diff -druNp --no-dereference linux-libre-5.1-gnu/security/integrity/digsig.c linux-libre-5.1.21-gnu/security/integrity/digsig.c
--- linux-libre-5.1-gnu/security/integrity/digsig.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/integrity/digsig.c	2019-07-28 02:28:39.000000000 -0400
@@ -73,8 +73,9 @@ int integrity_digsig_verify(const unsign
 	return -EOPNOTSUPP;
 }
 
-static int __integrity_init_keyring(const unsigned int id, key_perm_t perm,
-				    struct key_restriction *restriction)
+static int __init __integrity_init_keyring(const unsigned int id,
+					   key_perm_t perm,
+					   struct key_restriction *restriction)
 {
 	const struct cred *cred = current_cred();
 	int err = 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/security/integrity/evm/evm_crypto.c linux-libre-5.1.21-gnu/security/integrity/evm/evm_crypto.c
--- linux-libre-5.1-gnu/security/integrity/evm/evm_crypto.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/integrity/evm/evm_crypto.c	2019-07-28 02:28:39.000000000 -0400
@@ -89,6 +89,9 @@ static struct shash_desc *init_desc(char
 		tfm = &hmac_tfm;
 		algo = evm_hmac;
 	} else {
+		if (hash_algo >= HASH_ALGO__LAST)
+			return ERR_PTR(-EINVAL);
+
 		tfm = &evm_tfm[hash_algo];
 		algo = hash_algo_name[hash_algo];
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/security/integrity/ima/ima_policy.c linux-libre-5.1.21-gnu/security/integrity/ima/ima_policy.c
--- linux-libre-5.1-gnu/security/integrity/ima/ima_policy.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/integrity/ima/ima_policy.c	2019-07-28 02:28:39.000000000 -0400
@@ -498,10 +498,11 @@ static void add_rules(struct ima_rule_en
 
 			list_add_tail(&entry->list, &ima_policy_rules);
 		}
-		if (entries[i].action == APPRAISE)
+		if (entries[i].action == APPRAISE) {
 			temp_ima_appraise |= ima_appraise_flag(entries[i].func);
-		if (entries[i].func == POLICY_CHECK)
-			temp_ima_appraise |= IMA_APPRAISE_POLICY;
+			if (entries[i].func == POLICY_CHECK)
+				temp_ima_appraise |= IMA_APPRAISE_POLICY;
+		}
 	}
 }
 
@@ -1146,10 +1147,10 @@ enum {
 };
 
 static const char *const mask_tokens[] = {
-	"MAY_EXEC",
-	"MAY_WRITE",
-	"MAY_READ",
-	"MAY_APPEND"
+	"^MAY_EXEC",
+	"^MAY_WRITE",
+	"^MAY_READ",
+	"^MAY_APPEND"
 };
 
 #define __ima_hook_stringify(str)	(#str),
@@ -1209,6 +1210,7 @@ int ima_policy_show(struct seq_file *m,
 	struct ima_rule_entry *entry = v;
 	int i;
 	char tbuf[64] = {0,};
+	int offset = 0;
 
 	rcu_read_lock();
 
@@ -1232,15 +1234,17 @@ int ima_policy_show(struct seq_file *m,
 	if (entry->flags & IMA_FUNC)
 		policy_func_show(m, entry->func);
 
-	if (entry->flags & IMA_MASK) {
+	if ((entry->flags & IMA_MASK) || (entry->flags & IMA_INMASK)) {
+		if (entry->flags & IMA_MASK)
+			offset = 1;
 		if (entry->mask & MAY_EXEC)
-			seq_printf(m, pt(Opt_mask), mt(mask_exec));
+			seq_printf(m, pt(Opt_mask), mt(mask_exec) + offset);
 		if (entry->mask & MAY_WRITE)
-			seq_printf(m, pt(Opt_mask), mt(mask_write));
+			seq_printf(m, pt(Opt_mask), mt(mask_write) + offset);
 		if (entry->mask & MAY_READ)
-			seq_printf(m, pt(Opt_mask), mt(mask_read));
+			seq_printf(m, pt(Opt_mask), mt(mask_read) + offset);
 		if (entry->mask & MAY_APPEND)
-			seq_printf(m, pt(Opt_mask), mt(mask_append));
+			seq_printf(m, pt(Opt_mask), mt(mask_append) + offset);
 		seq_puts(m, " ");
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/security/selinux/avc.c linux-libre-5.1.21-gnu/security/selinux/avc.c
--- linux-libre-5.1-gnu/security/selinux/avc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/selinux/avc.c	2019-07-28 02:28:39.000000000 -0400
@@ -739,14 +739,20 @@ static void avc_audit_post_callback(stru
 	rc = security_sid_to_context_inval(sad->state, sad->ssid, &scontext,
 					   &scontext_len);
 	if (!rc && scontext) {
-		audit_log_format(ab, " srawcon=%s", scontext);
+		if (scontext_len && scontext[scontext_len - 1] == '\0')
+			scontext_len--;
+		audit_log_format(ab, " srawcon=");
+		audit_log_n_untrustedstring(ab, scontext, scontext_len);
 		kfree(scontext);
 	}
 
 	rc = security_sid_to_context_inval(sad->state, sad->tsid, &scontext,
 					   &scontext_len);
 	if (!rc && scontext) {
-		audit_log_format(ab, " trawcon=%s", scontext);
+		if (scontext_len && scontext[scontext_len - 1] == '\0')
+			scontext_len--;
+		audit_log_format(ab, " trawcon=");
+		audit_log_n_untrustedstring(ab, scontext, scontext_len);
 		kfree(scontext);
 	}
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/security/selinux/hooks.c linux-libre-5.1.21-gnu/security/selinux/hooks.c
--- linux-libre-5.1-gnu/security/selinux/hooks.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/selinux/hooks.c	2019-07-28 02:28:39.000000000 -0400
@@ -1048,15 +1048,24 @@ static int selinux_add_mnt_opt(const cha
 	if (token == Opt_error)
 		return -EINVAL;
 
-	if (token != Opt_seclabel)
+	if (token != Opt_seclabel) {
 		val = kmemdup_nul(val, len, GFP_KERNEL);
+		if (!val) {
+			rc = -ENOMEM;
+			goto free_opt;
+		}
+	}
 	rc = selinux_add_opt(token, val, mnt_opts);
 	if (unlikely(rc)) {
 		kfree(val);
-		if (*mnt_opts) {
-			selinux_free_mnt_opts(*mnt_opts);
-			*mnt_opts = NULL;
-		}
+		goto free_opt;
+	}
+	return rc;
+
+free_opt:
+	if (*mnt_opts) {
+		selinux_free_mnt_opts(*mnt_opts);
+		*mnt_opts = NULL;
 	}
 	return rc;
 }
@@ -2603,10 +2612,11 @@ static int selinux_sb_eat_lsm_opts(char
 	char *from = options;
 	char *to = options;
 	bool first = true;
+	int rc;
 
 	while (1) {
 		int len = opt_len(from);
-		int token, rc;
+		int token;
 		char *arg = NULL;
 
 		token = match_opt_prefix(from, len, &arg);
@@ -2622,15 +2632,15 @@ static int selinux_sb_eat_lsm_opts(char
 						*q++ = c;
 				}
 				arg = kmemdup_nul(arg, q - arg, GFP_KERNEL);
+				if (!arg) {
+					rc = -ENOMEM;
+					goto free_opt;
+				}
 			}
 			rc = selinux_add_opt(token, arg, mnt_opts);
 			if (unlikely(rc)) {
 				kfree(arg);
-				if (*mnt_opts) {
-					selinux_free_mnt_opts(*mnt_opts);
-					*mnt_opts = NULL;
-				}
-				return rc;
+				goto free_opt;
 			}
 		} else {
 			if (!first) {	// copy with preceding comma
@@ -2648,6 +2658,13 @@ static int selinux_sb_eat_lsm_opts(char
 	}
 	*to = '\0';
 	return 0;
+
+free_opt:
+	if (*mnt_opts) {
+		selinux_free_mnt_opts(*mnt_opts);
+		*mnt_opts = NULL;
+	}
+	return rc;
 }
 
 static int selinux_sb_remount(struct super_block *sb, void *mnt_opts)
@@ -4572,7 +4589,7 @@ static int selinux_socket_connect_helper
 		struct lsm_network_audit net = {0,};
 		struct sockaddr_in *addr4 = NULL;
 		struct sockaddr_in6 *addr6 = NULL;
-		unsigned short snum;
+		unsigned short snum = 0;
 		u32 sid, perm;
 
 		/* sctp_connectx(3) calls via selinux_sctp_bind_connect()
@@ -4595,12 +4612,12 @@ static int selinux_socket_connect_helper
 			break;
 		default:
 			/* Note that SCTP services expect -EINVAL, whereas
-			 * others expect -EAFNOSUPPORT.
+			 * others must handle this at the protocol level:
+			 * connect(AF_UNSPEC) on a connected socket is
+			 * a documented way disconnect the socket.
 			 */
 			if (sksec->sclass == SECCLASS_SCTP_SOCKET)
 				return -EINVAL;
-			else
-				return -EAFNOSUPPORT;
 		}
 
 		err = sel_netport_sid(sk->sk_protocol, snum, &sid);
@@ -6252,11 +6269,12 @@ static int selinux_setprocattr(const cha
 	} else if (!strcmp(name, "fscreate")) {
 		tsec->create_sid = sid;
 	} else if (!strcmp(name, "keycreate")) {
-		error = avc_has_perm(&selinux_state,
-				     mysid, sid, SECCLASS_KEY, KEY__CREATE,
-				     NULL);
-		if (error)
-			goto abort_change;
+		if (sid) {
+			error = avc_has_perm(&selinux_state, mysid, sid,
+					     SECCLASS_KEY, KEY__CREATE, NULL);
+			if (error)
+				goto abort_change;
+		}
 		tsec->keycreate_sid = sid;
 	} else if (!strcmp(name, "sockcreate")) {
 		tsec->sockcreate_sid = sid;
diff -druNp --no-dereference linux-libre-5.1-gnu/security/selinux/netlabel.c linux-libre-5.1.21-gnu/security/selinux/netlabel.c
--- linux-libre-5.1-gnu/security/selinux/netlabel.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/selinux/netlabel.c	2019-07-28 02:28:39.000000000 -0400
@@ -288,11 +288,8 @@ int selinux_netlbl_sctp_assoc_request(st
 	int rc;
 	struct netlbl_lsm_secattr secattr;
 	struct sk_security_struct *sksec = ep->base.sk->sk_security;
-	struct sockaddr *addr;
 	struct sockaddr_in addr4;
-#if IS_ENABLED(CONFIG_IPV6)
 	struct sockaddr_in6 addr6;
-#endif
 
 	if (ep->base.sk->sk_family != PF_INET &&
 				ep->base.sk->sk_family != PF_INET6)
@@ -310,16 +307,15 @@ int selinux_netlbl_sctp_assoc_request(st
 	if (ip_hdr(skb)->version == 4) {
 		addr4.sin_family = AF_INET;
 		addr4.sin_addr.s_addr = ip_hdr(skb)->saddr;
-		addr = (struct sockaddr *)&addr4;
-#if IS_ENABLED(CONFIG_IPV6)
-	} else {
+		rc = netlbl_conn_setattr(ep->base.sk, (void *)&addr4, &secattr);
+	} else if (IS_ENABLED(CONFIG_IPV6) && ip_hdr(skb)->version == 6) {
 		addr6.sin6_family = AF_INET6;
 		addr6.sin6_addr = ipv6_hdr(skb)->saddr;
-		addr = (struct sockaddr *)&addr6;
-#endif
+		rc = netlbl_conn_setattr(ep->base.sk, (void *)&addr6, &secattr);
+	} else {
+		rc = -EAFNOSUPPORT;
 	}
 
-	rc = netlbl_conn_setattr(ep->base.sk, addr, &secattr);
 	if (rc == 0)
 		sksec->nlbl_state = NLBL_LABELED;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/security/smack/smack_lsm.c linux-libre-5.1.21-gnu/security/smack/smack_lsm.c
--- linux-libre-5.1-gnu/security/smack/smack_lsm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/security/smack/smack_lsm.c	2019-07-28 02:28:39.000000000 -0400
@@ -67,6 +67,7 @@ static struct {
 	int len;
 	int opt;
 } smk_mount_opts[] = {
+	{"smackfsdef", sizeof("smackfsdef") - 1, Opt_fsdefault},
 	A(fsdefault), A(fsfloor), A(fshat), A(fsroot), A(fstransmute)
 };
 #undef A
@@ -681,11 +682,12 @@ static int smack_fs_context_dup(struct f
 }
 
 static const struct fs_parameter_spec smack_param_specs[] = {
-	fsparam_string("fsdefault",	Opt_fsdefault),
-	fsparam_string("fsfloor",	Opt_fsfloor),
-	fsparam_string("fshat",		Opt_fshat),
-	fsparam_string("fsroot",	Opt_fsroot),
-	fsparam_string("fstransmute",	Opt_fstransmute),
+	fsparam_string("smackfsdef",		Opt_fsdefault),
+	fsparam_string("smackfsdefault",	Opt_fsdefault),
+	fsparam_string("smackfsfloor",		Opt_fsfloor),
+	fsparam_string("smackfshat",		Opt_fshat),
+	fsparam_string("smackfsroot",		Opt_fsroot),
+	fsparam_string("smackfstransmute",	Opt_fstransmute),
 	{}
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/core/seq/oss/seq_oss_ioctl.c linux-libre-5.1.21-gnu/sound/core/seq/oss/seq_oss_ioctl.c
--- linux-libre-5.1-gnu/sound/core/seq/oss/seq_oss_ioctl.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/core/seq/oss/seq_oss_ioctl.c	2019-07-28 02:28:39.000000000 -0400
@@ -62,7 +62,7 @@ static int snd_seq_oss_oob_user(struct s
 	if (copy_from_user(ev, arg, 8))
 		return -EFAULT;
 	memset(&tmpev, 0, sizeof(tmpev));
-	snd_seq_oss_fill_addr(dp, &tmpev, dp->addr.port, dp->addr.client);
+	snd_seq_oss_fill_addr(dp, &tmpev, dp->addr.client, dp->addr.port);
 	tmpev.time.tick = 0;
 	if (! snd_seq_oss_process_event(dp, (union evrec *)ev, &tmpev)) {
 		snd_seq_oss_dispatch(dp, &tmpev, 0, 0);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/core/seq/oss/seq_oss_rw.c linux-libre-5.1.21-gnu/sound/core/seq/oss/seq_oss_rw.c
--- linux-libre-5.1-gnu/sound/core/seq/oss/seq_oss_rw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/core/seq/oss/seq_oss_rw.c	2019-07-28 02:28:39.000000000 -0400
@@ -174,7 +174,7 @@ insert_queue(struct seq_oss_devinfo *dp,
 	memset(&event, 0, sizeof(event));
 	/* set dummy -- to be sure */
 	event.type = SNDRV_SEQ_EVENT_NOTEOFF;
-	snd_seq_oss_fill_addr(dp, &event, dp->addr.port, dp->addr.client);
+	snd_seq_oss_fill_addr(dp, &event, dp->addr.client, dp->addr.port);
 
 	if (snd_seq_oss_process_event(dp, rec, &event))
 		return 0; /* invalid event - no need to insert queue */
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/core/seq/seq_clientmgr.c linux-libre-5.1.21-gnu/sound/core/seq/seq_clientmgr.c
--- linux-libre-5.1-gnu/sound/core/seq/seq_clientmgr.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/core/seq/seq_clientmgr.c	2019-07-28 02:28:39.000000000 -0400
@@ -1004,7 +1004,7 @@ static ssize_t snd_seq_write(struct file
 {
 	struct snd_seq_client *client = file->private_data;
 	int written = 0, len;
-	int err;
+	int err, handled;
 	struct snd_seq_event event;
 
 	if (!(snd_seq_file_flags(file) & SNDRV_SEQ_LFLG_OUTPUT))
@@ -1017,6 +1017,8 @@ static ssize_t snd_seq_write(struct file
 	if (!client->accept_output || client->pool == NULL)
 		return -ENXIO;
 
+ repeat:
+	handled = 0;
 	/* allocate the pool now if the pool is not allocated yet */ 
 	mutex_lock(&client->ioctl_mutex);
 	if (client->pool->size > 0 && !snd_seq_write_pool_allocated(client)) {
@@ -1076,12 +1078,19 @@ static ssize_t snd_seq_write(struct file
 						   0, 0, &client->ioctl_mutex);
 		if (err < 0)
 			break;
+		handled++;
 
 	__skip_event:
 		/* Update pointers and counts */
 		count -= len;
 		buf += len;
 		written += len;
+
+		/* let's have a coffee break if too many events are queued */
+		if (++handled >= 200) {
+			mutex_unlock(&client->ioctl_mutex);
+			goto repeat;
+		}
 	}
 
  out:
@@ -1900,20 +1909,14 @@ static int snd_seq_ioctl_get_subscriptio
 	int result;
 	struct snd_seq_client *sender = NULL;
 	struct snd_seq_client_port *sport = NULL;
-	struct snd_seq_subscribers *p;
 
 	result = -EINVAL;
 	if ((sender = snd_seq_client_use_ptr(subs->sender.client)) == NULL)
 		goto __end;
 	if ((sport = snd_seq_port_use_ptr(sender, subs->sender.port)) == NULL)
 		goto __end;
-	p = snd_seq_port_get_subscription(&sport->c_src, &subs->dest);
-	if (p) {
-		result = 0;
-		*subs = p->info;
-	} else
-		result = -ENOENT;
-
+	result = snd_seq_port_get_subscription(&sport->c_src, &subs->dest,
+					       subs);
       __end:
       	if (sport)
 		snd_seq_port_unlock(sport);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/core/seq/seq_ports.c linux-libre-5.1.21-gnu/sound/core/seq/seq_ports.c
--- linux-libre-5.1-gnu/sound/core/seq/seq_ports.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/core/seq/seq_ports.c	2019-07-28 02:28:39.000000000 -0400
@@ -550,10 +550,10 @@ static void delete_and_unsubscribe_port(
 		list_del_init(list);
 	grp->exclusive = 0;
 	write_unlock_irq(&grp->list_lock);
-	up_write(&grp->list_mutex);
 
 	if (!empty)
 		unsubscribe_port(client, port, grp, &subs->info, ack);
+	up_write(&grp->list_mutex);
 }
 
 /* connect two ports */
@@ -635,20 +635,23 @@ int snd_seq_port_disconnect(struct snd_s
 
 
 /* get matched subscriber */
-struct snd_seq_subscribers *snd_seq_port_get_subscription(struct snd_seq_port_subs_info *src_grp,
-							  struct snd_seq_addr *dest_addr)
+int snd_seq_port_get_subscription(struct snd_seq_port_subs_info *src_grp,
+				  struct snd_seq_addr *dest_addr,
+				  struct snd_seq_port_subscribe *subs)
 {
-	struct snd_seq_subscribers *s, *found = NULL;
+	struct snd_seq_subscribers *s;
+	int err = -ENOENT;
 
 	down_read(&src_grp->list_mutex);
 	list_for_each_entry(s, &src_grp->list_head, src_list) {
 		if (addr_match(dest_addr, &s->info.dest)) {
-			found = s;
+			*subs = s->info;
+			err = 0;
 			break;
 		}
 	}
 	up_read(&src_grp->list_mutex);
-	return found;
+	return err;
 }
 
 /*
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/core/seq/seq_ports.h linux-libre-5.1.21-gnu/sound/core/seq/seq_ports.h
--- linux-libre-5.1-gnu/sound/core/seq/seq_ports.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/core/seq/seq_ports.h	2019-07-28 02:28:39.000000000 -0400
@@ -135,7 +135,8 @@ int snd_seq_port_subscribe(struct snd_se
 			   struct snd_seq_port_subscribe *info);
 
 /* get matched subscriber */
-struct snd_seq_subscribers *snd_seq_port_get_subscription(struct snd_seq_port_subs_info *src_grp,
-							  struct snd_seq_addr *dest_addr);
+int snd_seq_port_get_subscription(struct snd_seq_port_subs_info *src_grp,
+				  struct snd_seq_addr *dest_addr,
+				  struct snd_seq_port_subscribe *subs);
 
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/firewire/amdtp-am824.c linux-libre-5.1.21-gnu/sound/firewire/amdtp-am824.c
--- linux-libre-5.1-gnu/sound/firewire/amdtp-am824.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/firewire/amdtp-am824.c	2019-07-28 02:28:39.000000000 -0400
@@ -321,7 +321,7 @@ static void read_midi_messages(struct am
 	u8 *b;
 
 	for (f = 0; f < frames; f++) {
-		port = (s->data_block_counter + f) % 8;
+		port = (8 - s->tx_first_dbc + s->data_block_counter + f) % 8;
 		b = (u8 *)&buffer[p->midi_position];
 
 		len = b[0] - 0x80;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/firewire/fireface/ff-protocol-latter.c linux-libre-5.1.21-gnu/sound/firewire/fireface/ff-protocol-latter.c
--- linux-libre-5.1-gnu/sound/firewire/fireface/ff-protocol-latter.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/firewire/fireface/ff-protocol-latter.c	2019-07-28 02:28:39.000000000 -0400
@@ -9,11 +9,11 @@
 
 #include "ff.h"
 
-#define LATTER_STF		0xffff00000004
-#define LATTER_ISOC_CHANNELS	0xffff00000008
-#define LATTER_ISOC_START	0xffff0000000c
-#define LATTER_FETCH_MODE	0xffff00000010
-#define LATTER_SYNC_STATUS	0x0000801c0000
+#define LATTER_STF		0xffff00000004ULL
+#define LATTER_ISOC_CHANNELS	0xffff00000008ULL
+#define LATTER_ISOC_START	0xffff0000000cULL
+#define LATTER_FETCH_MODE	0xffff00000010ULL
+#define LATTER_SYNC_STATUS	0x0000801c0000ULL
 
 static int parse_clock_bits(u32 data, unsigned int *rate,
 			    enum snd_ff_clock_src *src)
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/firewire/motu/motu-stream.c linux-libre-5.1.21-gnu/sound/firewire/motu/motu-stream.c
--- linux-libre-5.1-gnu/sound/firewire/motu/motu-stream.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/firewire/motu/motu-stream.c	2019-07-28 02:28:39.000000000 -0400
@@ -345,7 +345,7 @@ static void destroy_stream(struct snd_mo
 	}
 
 	amdtp_stream_destroy(stream);
-	fw_iso_resources_free(resources);
+	fw_iso_resources_destroy(resources);
 }
 
 int snd_motu_stream_init_duplex(struct snd_motu *motu)
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/firewire/oxfw/oxfw.c linux-libre-5.1.21-gnu/sound/firewire/oxfw/oxfw.c
--- linux-libre-5.1-gnu/sound/firewire/oxfw/oxfw.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/firewire/oxfw/oxfw.c	2019-07-28 02:28:39.000000000 -0400
@@ -148,9 +148,6 @@ static int detect_quirks(struct snd_oxfw
 		oxfw->midi_input_ports = 0;
 		oxfw->midi_output_ports = 0;
 
-		/* Output stream exists but no data channels are useful. */
-		oxfw->has_output = false;
-
 		return snd_oxfw_scs1x_add(oxfw);
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/hda/ext/hdac_ext_bus.c linux-libre-5.1.21-gnu/sound/hda/ext/hdac_ext_bus.c
--- linux-libre-5.1-gnu/sound/hda/ext/hdac_ext_bus.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/hda/ext/hdac_ext_bus.c	2019-07-28 02:28:39.000000000 -0400
@@ -172,7 +172,6 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_devic
 void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev)
 {
 	snd_hdac_device_exit(hdev);
-	kfree(hdev);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/hda/hdac_controller.c linux-libre-5.1.21-gnu/sound/hda/hdac_controller.c
--- linux-libre-5.1-gnu/sound/hda/hdac_controller.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/hda/hdac_controller.c	2019-07-28 02:28:39.000000000 -0400
@@ -78,6 +78,8 @@ void snd_hdac_bus_init_cmd_io(struct hda
 	snd_hdac_chip_writew(bus, RINTCNT, 1);
 	/* enable rirb dma and response irq */
 	snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN);
+	/* Accept unsolicited responses */
+	snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, AZX_GCTL_UNSOL);
 	spin_unlock_irq(&bus->reg_lock);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_bus_init_cmd_io);
@@ -414,9 +416,6 @@ int snd_hdac_bus_reset_link(struct hdac_
 		return -EBUSY;
 	}
 
-	/* Accept unsolicited responses */
-	snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, AZX_GCTL_UNSOL);
-
 	/* detect codecs */
 	if (!bus->codec_mask) {
 		bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/pci/hda/hda_codec.c linux-libre-5.1.21-gnu/sound/pci/hda/hda_codec.c
--- linux-libre-5.1-gnu/sound/pci/hda/hda_codec.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/pci/hda/hda_codec.c	2019-07-28 02:28:39.000000000 -0400
@@ -832,9 +832,22 @@ static int snd_hda_codec_dev_free(struct
 	struct hda_codec *codec = device->device_data;
 
 	codec->in_freeing = 1;
-	snd_hdac_device_unregister(&codec->core);
+	/*
+	 * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver.
+	 * We can't unregister ASoC device since it will be unregistered in
+	 * snd_hdac_ext_bus_device_remove().
+	 */
+	if (codec->core.type == HDA_DEV_LEGACY)
+		snd_hdac_device_unregister(&codec->core);
 	codec_display_power(codec, false);
-	put_device(hda_codec_dev(codec));
+
+	/*
+	 * In the case of ASoC HD-audio bus, the device refcount is released in
+	 * snd_hdac_ext_bus_device_remove() explicitly.
+	 */
+	if (codec->core.type == HDA_DEV_LEGACY)
+		put_device(hda_codec_dev(codec));
+
 	return 0;
 }
 
@@ -2942,15 +2955,19 @@ static int hda_codec_runtime_resume(stru
 #ifdef CONFIG_PM_SLEEP
 static int hda_codec_force_resume(struct device *dev)
 {
+	struct hda_codec *codec = dev_to_hda_codec(dev);
+	bool forced_resume = !codec->relaxed_resume;
 	int ret;
 
 	/* The get/put pair below enforces the runtime resume even if the
 	 * device hasn't been used at suspend time.  This trick is needed to
 	 * update the jack state change during the sleep.
 	 */
-	pm_runtime_get_noresume(dev);
+	if (forced_resume)
+		pm_runtime_get_noresume(dev);
 	ret = pm_runtime_force_resume(dev);
-	pm_runtime_put(dev);
+	if (forced_resume)
+		pm_runtime_put(dev);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/pci/hda/hda_intel.c linux-libre-5.1.21-gnu/sound/pci/hda/hda_intel.c
--- linux-libre-5.1-gnu/sound/pci/hda/hda_intel.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/pci/hda/hda_intel.c	2019-07-28 02:28:39.000000000 -0400
@@ -375,6 +375,7 @@ enum {
 
 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
 #define IS_CFL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa348)
+#define IS_CNL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9dc8)
 
 static char *driver_short_names[] = {
 	[AZX_DRIVER_ICH] = "HDA Intel",
@@ -1700,8 +1701,8 @@ static int azx_create(struct snd_card *c
 	else
 		chip->bdl_pos_adj = bdl_pos_adj[dev];
 
-	/* Workaround for a communication error on CFL (bko#199007) */
-	if (IS_CFL(pci))
+	/* Workaround for a communication error on CFL (bko#199007) and CNL */
+	if (IS_CFL(pci) || IS_CNL(pci))
 		chip->polling_mode = 1;
 
 	err = azx_bus_init(chip, model[dev], &pci_hda_io_ops);
@@ -1788,9 +1789,6 @@ static int azx_first_init(struct azx *ch
 			chip->msi = 0;
 	}
 
-	if (azx_acquire_irq(chip, 0) < 0)
-		return -EBUSY;
-
 	pci_set_master(pci);
 	synchronize_irq(bus->irq);
 
@@ -1904,6 +1902,9 @@ static int azx_first_init(struct azx *ch
 		return -ENODEV;
 	}
 
+	if (azx_acquire_irq(chip, 0) < 0)
+		return -EBUSY;
+
 	strcpy(card->driver, "HDA-Intel");
 	strlcpy(card->shortname, driver_short_names[chip->driver_type],
 		sizeof(card->shortname));
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/pci/hda/patch_hdmi.c linux-libre-5.1.21-gnu/sound/pci/hda/patch_hdmi.c
--- linux-libre-5.1-gnu/sound/pci/hda/patch_hdmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/pci/hda/patch_hdmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1551,9 +1551,11 @@ static bool hdmi_present_sense_via_verbs
 	ret = !repoll || !eld->monitor_present || eld->eld_valid;
 
 	jack = snd_hda_jack_tbl_get(codec, pin_nid);
-	if (jack)
+	if (jack) {
 		jack->block_report = !ret;
-
+		jack->pin_sense = (eld->monitor_present && eld->eld_valid) ?
+			AC_PINSENSE_PRESENCE : 0;
+	}
 	mutex_unlock(&per_pin->lock);
 	return ret;
 }
@@ -1663,6 +1665,11 @@ static void hdmi_repoll_eld(struct work_
 	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
 	struct hda_codec *codec = per_pin->codec;
 	struct hdmi_spec *spec = codec->spec;
+	struct hda_jack_tbl *jack;
+
+	jack = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
+	if (jack)
+		jack->jack_dirty = 1;
 
 	if (per_pin->repoll_count++ > 6)
 		per_pin->repoll_count = 0;
@@ -2297,8 +2304,10 @@ static void generic_hdmi_free(struct hda
 	struct hdmi_spec *spec = codec->spec;
 	int pin_idx, pcm_idx;
 
-	if (codec_has_acomp(codec))
+	if (codec_has_acomp(codec)) {
 		snd_hdac_acomp_register_notifier(&codec->bus->core, NULL);
+		codec->relaxed_resume = 0;
+	}
 
 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
@@ -2422,7 +2431,6 @@ static void intel_haswell_fixup_connect_
 }
 
 #define INTEL_GET_VENDOR_VERB	0xf81
-#define INTEL_GET_VENDOR_VERB	0xf81
 #define INTEL_SET_VENDOR_VERB	0x781
 #define INTEL_EN_DP12		0x02	/* enable DP 1.2 features */
 #define INTEL_EN_ALL_PIN_CVTS	0x01	/* enable 2nd & 3rd pins and convertors */
@@ -2530,18 +2538,32 @@ static int intel_pin2port(void *audio_pt
 	return -1;
 }
 
+static int intel_port2pin(struct hda_codec *codec, int port)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	if (!spec->port_num) {
+		/* we assume only from port-B to port-D */
+		if (port < 1 || port > 3)
+			return 0;
+		/* intel port is 1-based */
+		return port + intel_base_nid(codec) - 1;
+	}
+
+	if (port < 1 || port > spec->port_num)
+		return 0;
+	return spec->port_map[port - 1];
+}
+
 static void intel_pin_eld_notify(void *audio_ptr, int port, int pipe)
 {
 	struct hda_codec *codec = audio_ptr;
 	int pin_nid;
 	int dev_id = pipe;
 
-	/* we assume only from port-B to port-D */
-	if (port < 1 || port > 3)
+	pin_nid = intel_port2pin(codec, port);
+	if (!pin_nid)
 		return;
-
-	pin_nid = port + intel_base_nid(codec) - 1; /* intel port is 1-based */
-
 	/* skip notification during system suspend (but not in runtime PM);
 	 * the state will be updated at resume
 	 */
@@ -2571,6 +2593,8 @@ static void register_i915_notifier(struc
 	spec->drm_audio_ops.pin_eld_notify = intel_pin_eld_notify;
 	snd_hdac_acomp_register_notifier(&codec->bus->core,
 					&spec->drm_audio_ops);
+	/* no need for forcible resume for jack check thanks to notifier */
+	codec->relaxed_resume = 1;
 }
 
 /* setup_stream ops override for HSW+ */
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/pci/hda/patch_realtek.c linux-libre-5.1.21-gnu/sound/pci/hda/patch_realtek.c
--- linux-libre-5.1-gnu/sound/pci/hda/patch_realtek.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/pci/hda/patch_realtek.c	2019-07-28 02:28:39.000000000 -0400
@@ -477,12 +477,45 @@ static void alc_auto_setup_eapd(struct h
 		set_eapd(codec, *p, on);
 }
 
+static int find_ext_mic_pin(struct hda_codec *codec);
+
+static void alc_headset_mic_no_shutup(struct hda_codec *codec)
+{
+	const struct hda_pincfg *pin;
+	int mic_pin = find_ext_mic_pin(codec);
+	int i;
+
+	/* don't shut up pins when unloading the driver; otherwise it breaks
+	 * the default pin setup at the next load of the driver
+	 */
+	if (codec->bus->shutdown)
+		return;
+
+	snd_array_for_each(&codec->init_pins, i, pin) {
+		/* use read here for syncing after issuing each verb */
+		if (pin->nid != mic_pin)
+			snd_hda_codec_read(codec, pin->nid, 0,
+					AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
+	}
+
+	codec->pins_shutup = 1;
+}
+
 static void alc_shutup_pins(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
 
-	if (!spec->no_shutup_pins)
-		snd_hda_shutup_pins(codec);
+	switch (codec->core.vendor_id) {
+	case 0x10ec0286:
+	case 0x10ec0288:
+	case 0x10ec0298:
+		alc_headset_mic_no_shutup(codec);
+		break;
+	default:
+		if (!spec->no_shutup_pins)
+			snd_hda_shutup_pins(codec);
+		break;
+	}
 }
 
 /* generic shutup callback;
@@ -803,11 +836,10 @@ static int alc_init(struct hda_codec *co
 	if (spec->init_hook)
 		spec->init_hook(codec);
 
+	snd_hda_gen_init(codec);
 	alc_fix_pll(codec);
 	alc_auto_init_amp(codec, spec->init_amp);
 
-	snd_hda_gen_init(codec);
-
 	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_INIT);
 
 	return 0;
@@ -2411,9 +2443,10 @@ static const struct snd_pci_quirk alc882
 	SND_PCI_QUIRK(0x1558, 0x9501, "Clevo P950HR", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1558, 0x95e1, "Clevo P95xER", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1558, 0x95e2, "Clevo P950ER", ALC1220_FIXUP_CLEVO_P950),
-	SND_PCI_QUIRK(0x1558, 0x96e1, "System76 Oryx Pro (oryp5)", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
-	SND_PCI_QUIRK(0x1558, 0x97e1, "System76 Oryx Pro (oryp5)", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
-	SND_PCI_QUIRK(0x1558, 0x65d1, "Tuxedo Book XC1509", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
+	SND_PCI_QUIRK(0x1558, 0x96e1, "Clevo P960[ER][CDFN]-K", ALC1220_FIXUP_CLEVO_P950),
+	SND_PCI_QUIRK(0x1558, 0x97e1, "Clevo P970[ER][CDFN]", ALC1220_FIXUP_CLEVO_P950),
+	SND_PCI_QUIRK(0x1558, 0x65d1, "Clevo PB51[ER][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
+	SND_PCI_QUIRK(0x1558, 0x67d1, "Clevo PB71[ER][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK_VENDOR(0x1558, "Clevo laptop", ALC882_FIXUP_EAPD),
 	SND_PCI_QUIRK(0x161f, 0x2054, "Medion laptop", ALC883_FIXUP_EAPD),
 	SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo Y530", ALC882_FIXUP_LENOVO_Y530),
@@ -2924,27 +2957,6 @@ static int alc269_parse_auto_config(stru
 	return alc_parse_auto_config(codec, alc269_ignore, ssids);
 }
 
-static int find_ext_mic_pin(struct hda_codec *codec);
-
-static void alc286_shutup(struct hda_codec *codec)
-{
-	const struct hda_pincfg *pin;
-	int i;
-	int mic_pin = find_ext_mic_pin(codec);
-	/* don't shut up pins when unloading the driver; otherwise it breaks
-	 * the default pin setup at the next load of the driver
-	 */
-	if (codec->bus->shutdown)
-		return;
-	snd_array_for_each(&codec->init_pins, i, pin) {
-		/* use read here for syncing after issuing each verb */
-		if (pin->nid != mic_pin)
-			snd_hda_codec_read(codec, pin->nid, 0,
-					AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
-	}
-	codec->pins_shutup = 1;
-}
-
 static void alc269vb_toggle_power_output(struct hda_codec *codec, int power_up)
 {
 	alc_update_coef_idx(codec, 0x04, 1 << 11, power_up ? (1 << 11) : 0);
@@ -3224,6 +3236,7 @@ static void alc256_init(struct hda_codec
 	alc_update_coefex_idx(codec, 0x57, 0x04, 0x0007, 0x4); /* Hight power */
 	alc_update_coefex_idx(codec, 0x53, 0x02, 0x8000, 1 << 15); /* Clear bit */
 	alc_update_coefex_idx(codec, 0x53, 0x02, 0x8000, 0 << 15);
+	alc_update_coef_idx(codec, 0x36, 1 << 13, 1 << 5); /* Switch pcbeep path to Line in path*/
 }
 
 static void alc256_shutup(struct hda_codec *codec)
@@ -4073,18 +4086,19 @@ static struct coef_fw alc225_pre_hsmode[
 static void alc_headset_mode_unplugged(struct hda_codec *codec)
 {
 	static struct coef_fw coef0255[] = {
+		WRITE_COEF(0x1b, 0x0c0b), /* LDO and MISC control */
 		WRITE_COEF(0x45, 0xd089), /* UAJ function set to menual mode */
 		UPDATE_COEFEX(0x57, 0x05, 1<<14, 0), /* Direct Drive HP Amp control(Set to verb control)*/
 		WRITE_COEF(0x06, 0x6104), /* Set MIC2 Vref gate with HP */
 		WRITE_COEFEX(0x57, 0x03, 0x8aa6), /* Direct Drive HP Amp control */
 		{}
 	};
-	static struct coef_fw coef0255_1[] = {
-		WRITE_COEF(0x1b, 0x0c0b), /* LDO and MISC control */
-		{}
-	};
 	static struct coef_fw coef0256[] = {
 		WRITE_COEF(0x1b, 0x0c4b), /* LDO and MISC control */
+		WRITE_COEF(0x45, 0xd089), /* UAJ function set to menual mode */
+		WRITE_COEF(0x06, 0x6104), /* Set MIC2 Vref gate with HP */
+		WRITE_COEFEX(0x57, 0x03, 0x09a3), /* Direct Drive HP Amp control */
+		UPDATE_COEFEX(0x57, 0x05, 1<<14, 0), /* Direct Drive HP Amp control(Set to verb control)*/
 		{}
 	};
 	static struct coef_fw coef0233[] = {
@@ -4147,13 +4161,11 @@ static void alc_headset_mode_unplugged(s
 
 	switch (codec->core.vendor_id) {
 	case 0x10ec0255:
-		alc_process_coef_fw(codec, coef0255_1);
 		alc_process_coef_fw(codec, coef0255);
 		break;
 	case 0x10ec0236:
 	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0256);
-		alc_process_coef_fw(codec, coef0255);
 		break;
 	case 0x10ec0234:
 	case 0x10ec0274:
@@ -4206,6 +4218,12 @@ static void alc_headset_mode_mic_in(stru
 		WRITE_COEF(0x06, 0x6100), /* Set MIC2 Vref gate to normal */
 		{}
 	};
+	static struct coef_fw coef0256[] = {
+		UPDATE_COEFEX(0x57, 0x05, 1<<14, 1<<14), /* Direct Drive HP Amp control(Set to verb control)*/
+		WRITE_COEFEX(0x57, 0x03, 0x09a3),
+		WRITE_COEF(0x06, 0x6100), /* Set MIC2 Vref gate to normal */
+		{}
+	};
 	static struct coef_fw coef0233[] = {
 		UPDATE_COEF(0x35, 0, 1<<14),
 		WRITE_COEF(0x06, 0x2100),
@@ -4253,14 +4271,19 @@ static void alc_headset_mode_mic_in(stru
 	};
 
 	switch (codec->core.vendor_id) {
-	case 0x10ec0236:
 	case 0x10ec0255:
-	case 0x10ec0256:
 		alc_write_coef_idx(codec, 0x45, 0xc489);
 		snd_hda_set_pin_ctl_cache(codec, hp_pin, 0);
 		alc_process_coef_fw(codec, coef0255);
 		snd_hda_set_pin_ctl_cache(codec, mic_pin, PIN_VREF50);
 		break;
+	case 0x10ec0236:
+	case 0x10ec0256:
+		alc_write_coef_idx(codec, 0x45, 0xc489);
+		snd_hda_set_pin_ctl_cache(codec, hp_pin, 0);
+		alc_process_coef_fw(codec, coef0256);
+		snd_hda_set_pin_ctl_cache(codec, mic_pin, PIN_VREF50);
+		break;
 	case 0x10ec0234:
 	case 0x10ec0274:
 	case 0x10ec0294:
@@ -4342,6 +4365,14 @@ static void alc_headset_mode_default(str
 		WRITE_COEF(0x49, 0x0049),
 		{}
 	};
+	static struct coef_fw coef0256[] = {
+		WRITE_COEF(0x45, 0xc489),
+		WRITE_COEFEX(0x57, 0x03, 0x0da3),
+		WRITE_COEF(0x49, 0x0049),
+		UPDATE_COEFEX(0x57, 0x05, 1<<14, 0), /* Direct Drive HP Amp control(Set to verb control)*/
+		WRITE_COEF(0x06, 0x6100),
+		{}
+	};
 	static struct coef_fw coef0233[] = {
 		WRITE_COEF(0x06, 0x2100),
 		WRITE_COEF(0x32, 0x4ea3),
@@ -4392,11 +4423,16 @@ static void alc_headset_mode_default(str
 		alc_process_coef_fw(codec, alc225_pre_hsmode);
 		alc_process_coef_fw(codec, coef0225);
 		break;
-	case 0x10ec0236:
 	case 0x10ec0255:
-	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
 		break;
+	case 0x10ec0236:
+	case 0x10ec0256:
+		alc_write_coef_idx(codec, 0x1b, 0x0e4b);
+		alc_write_coef_idx(codec, 0x45, 0xc089);
+		msleep(50);
+		alc_process_coef_fw(codec, coef0256);
+		break;
 	case 0x10ec0234:
 	case 0x10ec0274:
 	case 0x10ec0294:
@@ -4440,8 +4476,7 @@ static void alc_headset_mode_ctia(struct
 	};
 	static struct coef_fw coef0256[] = {
 		WRITE_COEF(0x45, 0xd489), /* Set to CTIA type */
-		WRITE_COEF(0x1b, 0x0c6b),
-		WRITE_COEFEX(0x57, 0x03, 0x8ea6),
+		WRITE_COEF(0x1b, 0x0e6b),
 		{}
 	};
 	static struct coef_fw coef0233[] = {
@@ -4559,8 +4594,7 @@ static void alc_headset_mode_omtp(struct
 	};
 	static struct coef_fw coef0256[] = {
 		WRITE_COEF(0x45, 0xe489), /* Set to OMTP Type */
-		WRITE_COEF(0x1b, 0x0c6b),
-		WRITE_COEFEX(0x57, 0x03, 0x8ea6),
+		WRITE_COEF(0x1b, 0x0e6b),
 		{}
 	};
 	static struct coef_fw coef0233[] = {
@@ -4692,13 +4726,37 @@ static void alc_determine_headset_type(s
 	};
 
 	switch (codec->core.vendor_id) {
-	case 0x10ec0236:
 	case 0x10ec0255:
+		alc_process_coef_fw(codec, coef0255);
+		msleep(300);
+		val = alc_read_coef_idx(codec, 0x46);
+		is_ctia = (val & 0x0070) == 0x0070;
+		break;
+	case 0x10ec0236:
 	case 0x10ec0256:
+		alc_write_coef_idx(codec, 0x1b, 0x0e4b);
+		alc_write_coef_idx(codec, 0x06, 0x6104);
+		alc_write_coefex_idx(codec, 0x57, 0x3, 0x09a3);
+
+		snd_hda_codec_write(codec, 0x21, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+		msleep(80);
+		snd_hda_codec_write(codec, 0x21, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0);
+
 		alc_process_coef_fw(codec, coef0255);
 		msleep(300);
 		val = alc_read_coef_idx(codec, 0x46);
 		is_ctia = (val & 0x0070) == 0x0070;
+
+		alc_write_coefex_idx(codec, 0x57, 0x3, 0x0da3);
+		alc_update_coefex_idx(codec, 0x57, 0x5, 1<<14, 0);
+
+		snd_hda_codec_write(codec, 0x21, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
+		msleep(80);
+		snd_hda_codec_write(codec, 0x21, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
 		break;
 	case 0x10ec0234:
 	case 0x10ec0274:
@@ -6933,6 +6991,10 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1462, 0xb120, "MSI Cubi MS-B120", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1462, 0xb171, "Cubi N 8GL (MS-B171)", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1558, 0x1325, "System76 Darter Pro (darp5)", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1558, 0x8550, "System76 Gazelle (gaze14)", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1558, 0x8551, "System76 Gazelle (gaze14)", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1558, 0x8560, "System76 Gazelle (gaze14)", ALC269_FIXUP_HEADSET_MIC),
+	SND_PCI_QUIRK(0x1558, 0x8561, "System76 Gazelle (gaze14)", ALC269_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x1036, "Lenovo P520", ALC233_FIXUP_LENOVO_MULTI_CODECS),
 	SND_PCI_QUIRK(0x17aa, 0x20f2, "Thinkpad SL410/510", ALC269_FIXUP_SKU_IGNORE),
 	SND_PCI_QUIRK(0x17aa, 0x215e, "Thinkpad L512", ALC269_FIXUP_SKU_IGNORE),
@@ -6970,12 +7032,13 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
 	SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
 	SND_PCI_QUIRK(0x17aa, 0x310c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
+	SND_PCI_QUIRK(0x17aa, 0x3111, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
 	SND_PCI_QUIRK(0x17aa, 0x312a, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
 	SND_PCI_QUIRK(0x17aa, 0x312f, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
 	SND_PCI_QUIRK(0x17aa, 0x313c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
-	SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP),
+	SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo B50-70", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x501e, "Thinkpad L440", ALC292_FIXUP_TPT440_DOCK),
@@ -7551,9 +7614,12 @@ static const struct snd_hda_pin_quirk al
 		{0x12, 0x90a60130},
 		{0x17, 0x90170110},
 		{0x21, 0x03211020}),
-	SND_HDA_PIN_QUIRK(0x10ec0295, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE,
+	SND_HDA_PIN_QUIRK(0x10ec0295, 0x1028, "Dell", ALC269_FIXUP_DELL4_MIC_NO_PRESENCE,
 		{0x14, 0x90170110},
 		{0x21, 0x04211020}),
+	SND_HDA_PIN_QUIRK(0x10ec0295, 0x1028, "Dell", ALC269_FIXUP_DELL4_MIC_NO_PRESENCE,
+		{0x14, 0x90170110},
+		{0x21, 0x04211030}),
 	SND_HDA_PIN_QUIRK(0x10ec0295, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE,
 		ALC295_STANDARD_PINS,
 		{0x17, 0x21014020},
@@ -7639,7 +7705,7 @@ static int patch_alc269(struct hda_codec
 
 	spec = codec->spec;
 	spec->gen.shared_mic_vref_pin = 0x18;
-	codec->power_save_node = 1;
+	codec->power_save_node = 0;
 
 #ifdef CONFIG_PM
 	codec->patch_ops.suspend = alc269_suspend;
@@ -7704,7 +7770,6 @@ static int patch_alc269(struct hda_codec
 	case 0x10ec0286:
 	case 0x10ec0288:
 		spec->codec_variant = ALC269_TYPE_ALC286;
-		spec->shutup = alc286_shutup;
 		break;
 	case 0x10ec0298:
 		spec->codec_variant = ALC269_TYPE_ALC298;
@@ -7721,7 +7786,6 @@ static int patch_alc269(struct hda_codec
 		spec->shutup = alc256_shutup;
 		spec->init_hook = alc256_init;
 		spec->gen.mixer_nid = 0; /* ALC256 does not have any loopback mixer path */
-		alc_update_coef_idx(codec, 0x36, 1 << 13, 1 << 5); /* Switch pcbeep path to Line in path*/
 		break;
 	case 0x10ec0257:
 		spec->codec_variant = ALC269_TYPE_ALC257;
@@ -8690,6 +8754,11 @@ static const struct snd_hda_pin_quirk al
 		{0x18, 0x01a19030},
 		{0x1a, 0x01813040},
 		{0x21, 0x01014020}),
+	SND_HDA_PIN_QUIRK(0x10ec0867, 0x1028, "Dell", ALC891_FIXUP_DELL_MIC_NO_PRESENCE,
+		{0x16, 0x01813030},
+		{0x17, 0x02211010},
+		{0x18, 0x01a19040},
+		{0x21, 0x01014020}),
 	SND_HDA_PIN_QUIRK(0x10ec0662, 0x1028, "Dell", ALC662_FIXUP_DELL_MIC_NO_PRESENCE,
 		{0x14, 0x01014010},
 		{0x18, 0x01a19020},
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/pci/ice1712/ews.c linux-libre-5.1.21-gnu/sound/pci/ice1712/ews.c
--- linux-libre-5.1-gnu/sound/pci/ice1712/ews.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/pci/ice1712/ews.c	2019-07-28 02:28:39.000000000 -0400
@@ -826,7 +826,7 @@ static int snd_ice1712_6fire_read_pca(st
 
 	snd_i2c_lock(ice->i2c);
 	byte = reg;
-	if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1)) {
+	if (snd_i2c_sendbytes(spec->i2cdevs[EWS_I2C_6FIRE], &byte, 1) != 1) {
 		snd_i2c_unlock(ice->i2c);
 		dev_err(ice->card->dev, "cannot send pca\n");
 		return -EIO;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/ak4458.c linux-libre-5.1.21-gnu/sound/soc/codecs/ak4458.c
--- linux-libre-5.1-gnu/sound/soc/codecs/ak4458.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/ak4458.c	2019-07-28 02:28:39.000000000 -0400
@@ -304,7 +304,10 @@ static int ak4458_rstn_control(struct sn
 					  AK4458_00_CONTROL1,
 					  AK4458_RSTN_MASK,
 					  0x0);
-	return ret;
+	if (ret < 0)
+		return ret;
+
+	return 0;
 }
 
 static int ak4458_hw_params(struct snd_pcm_substream *substream,
@@ -536,9 +539,10 @@ static void ak4458_power_on(struct ak445
 	}
 }
 
-static void ak4458_init(struct snd_soc_component *component)
+static int ak4458_init(struct snd_soc_component *component)
 {
 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
+	int ret;
 
 	/* External Mute ON */
 	if (ak4458->mute_gpiod)
@@ -546,21 +550,21 @@ static void ak4458_init(struct snd_soc_c
 
 	ak4458_power_on(ak4458);
 
-	snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
+	ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
 			    0x80, 0x80);   /* ACKS bit = 1; 10000000 */
+	if (ret < 0)
+		return ret;
 
-	ak4458_rstn_control(component, 1);
+	return ak4458_rstn_control(component, 1);
 }
 
 static int ak4458_probe(struct snd_soc_component *component)
 {
 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
 
-	ak4458_init(component);
-
 	ak4458->fs = 48000;
 
-	return 0;
+	return ak4458_init(component);
 }
 
 static void ak4458_remove(struct snd_soc_component *component)
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/cs4265.c linux-libre-5.1.21-gnu/sound/soc/codecs/cs4265.c
--- linux-libre-5.1-gnu/sound/soc/codecs/cs4265.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/cs4265.c	2019-07-28 02:28:39.000000000 -0400
@@ -60,7 +60,7 @@ static const struct reg_default cs4265_r
 static bool cs4265_readable_register(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
-	case CS4265_CHIP_ID ... CS4265_SPDIF_CTL2:
+	case CS4265_CHIP_ID ... CS4265_MAX_REGISTER:
 		return true;
 	default:
 		return false;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/cs42xx8.c linux-libre-5.1.21-gnu/sound/soc/codecs/cs42xx8.c
--- linux-libre-5.1-gnu/sound/soc/codecs/cs42xx8.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/cs42xx8.c	2019-07-28 02:28:39.000000000 -0400
@@ -558,6 +558,7 @@ static int cs42xx8_runtime_resume(struct
 	msleep(5);
 
 	regcache_cache_only(cs42xx8->regmap, false);
+	regcache_mark_dirty(cs42xx8->regmap);
 
 	ret = regcache_sync(cs42xx8->regmap);
 	if (ret) {
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/hdac_hdmi.c linux-libre-5.1.21-gnu/sound/soc/codecs/hdac_hdmi.c
--- linux-libre-5.1-gnu/sound/soc/codecs/hdac_hdmi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/hdac_hdmi.c	2019-07-28 02:28:39.000000000 -0400
@@ -1855,6 +1855,17 @@ static int hdmi_codec_probe(struct snd_s
 	hdmi->card = dapm->card->snd_card;
 
 	/*
+	 * Setup a device_link between card device and HDMI codec device.
+	 * The card device is the consumer and the HDMI codec device is
+	 * the supplier. With this setting, we can make sure that the audio
+	 * domain in display power will be always turned on before operating
+	 * on the HDMI audio codec registers.
+	 * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make
+	 * sure the device link is freed when the machine driver is removed.
+	 */
+	device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE |
+			DL_FLAG_AUTOREMOVE_CONSUMER);
+	/*
 	 * hdac_device core already sets the state to active and calls
 	 * get_noresume. So enable runtime and set the device to suspend.
 	 */
@@ -1869,6 +1880,12 @@ static void hdmi_codec_remove(struct snd
 {
 	struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
 	struct hdac_device *hdev = hdmi->hdev;
+	int ret;
+
+	ret = snd_hdac_acomp_register_notifier(hdev->bus, NULL);
+	if (ret < 0)
+		dev_err(&hdev->dev, "notifier unregister failed: err: %d\n",
+				ret);
 
 	pm_runtime_disable(&hdev->dev);
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/hdmi-codec.c linux-libre-5.1.21-gnu/sound/soc/codecs/hdmi-codec.c
--- linux-libre-5.1-gnu/sound/soc/codecs/hdmi-codec.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/hdmi-codec.c	2019-07-28 02:28:39.000000000 -0400
@@ -439,8 +439,12 @@ static int hdmi_codec_startup(struct snd
 		if (!ret) {
 			ret = snd_pcm_hw_constraint_eld(substream->runtime,
 							hcp->eld);
-			if (ret)
+			if (ret) {
+				mutex_lock(&hcp->current_stream_lock);
+				hcp->current_stream = NULL;
+				mutex_unlock(&hcp->current_stream_lock);
 				return ret;
+			}
 		}
 		/* Select chmap supported */
 		hdmi_codec_eld_chmap(hcp);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/max98090.c linux-libre-5.1.21-gnu/sound/soc/codecs/max98090.c
--- linux-libre-5.1-gnu/sound/soc/codecs/max98090.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/max98090.c	2019-07-28 02:28:39.000000000 -0400
@@ -1194,14 +1194,14 @@ static const struct snd_soc_dapm_widget
 		&max98090_right_rcv_mixer_controls[0],
 		ARRAY_SIZE(max98090_right_rcv_mixer_controls)),
 
-	SND_SOC_DAPM_MUX("LINMOD Mux", M98090_REG_LOUTR_MIXER,
-		M98090_LINMOD_SHIFT, 0, &max98090_linmod_mux),
+	SND_SOC_DAPM_MUX("LINMOD Mux", SND_SOC_NOPM, 0, 0,
+		&max98090_linmod_mux),
 
-	SND_SOC_DAPM_MUX("MIXHPLSEL Mux", M98090_REG_HP_CONTROL,
-		M98090_MIXHPLSEL_SHIFT, 0, &max98090_mixhplsel_mux),
+	SND_SOC_DAPM_MUX("MIXHPLSEL Mux", SND_SOC_NOPM, 0, 0,
+		&max98090_mixhplsel_mux),
 
-	SND_SOC_DAPM_MUX("MIXHPRSEL Mux", M98090_REG_HP_CONTROL,
-		M98090_MIXHPRSEL_SHIFT, 0, &max98090_mixhprsel_mux),
+	SND_SOC_DAPM_MUX("MIXHPRSEL Mux", SND_SOC_NOPM, 0, 0,
+		&max98090_mixhprsel_mux),
 
 	SND_SOC_DAPM_PGA("HP Left Out", M98090_REG_OUTPUT_ENABLE,
 		M98090_HPLEN_SHIFT, 0, NULL, 0),
@@ -1909,6 +1909,21 @@ static int max98090_configure_dmic(struc
 	return 0;
 }
 
+static int max98090_dai_startup(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct max98090_priv *max98090 = snd_soc_component_get_drvdata(component);
+	unsigned int fmt = max98090->dai_fmt;
+
+	/* Remove 24-bit format support if it is not in right justified mode. */
+	if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_RIGHT_J) {
+		substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+		snd_pcm_hw_constraint_msbits(substream->runtime, 0, 16, 16);
+	}
+	return 0;
+}
+
 static int max98090_dai_hw_params(struct snd_pcm_substream *substream,
 				   struct snd_pcm_hw_params *params,
 				   struct snd_soc_dai *dai)
@@ -2316,6 +2331,7 @@ EXPORT_SYMBOL_GPL(max98090_mic_detect);
 #define MAX98090_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
 
 static const struct snd_soc_dai_ops max98090_dai_ops = {
+	.startup = max98090_dai_startup,
 	.set_sysclk = max98090_dai_set_sysclk,
 	.set_fmt = max98090_dai_set_fmt,
 	.set_tdm_slot = max98090_set_tdm_slot,
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/rt274.c linux-libre-5.1.21-gnu/sound/soc/codecs/rt274.c
--- linux-libre-5.1-gnu/sound/soc/codecs/rt274.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/rt274.c	2019-07-28 02:28:39.000000000 -0400
@@ -405,6 +405,8 @@ static int rt274_mic_detect(struct snd_s
 {
 	struct rt274_priv *rt274 = snd_soc_component_get_drvdata(component);
 
+	rt274->jack = jack;
+
 	if (jack == NULL) {
 		/* Disable jack detection */
 		regmap_update_bits(rt274->regmap, RT274_EAPD_GPIO_IRQ_CTRL,
@@ -412,7 +414,6 @@ static int rt274_mic_detect(struct snd_s
 
 		return 0;
 	}
-	rt274->jack = jack;
 
 	regmap_update_bits(rt274->regmap, RT274_EAPD_GPIO_IRQ_CTRL,
 				RT274_IRQ_EN, RT274_IRQ_EN);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/rt5670.c linux-libre-5.1.21-gnu/sound/soc/codecs/rt5670.c
--- linux-libre-5.1-gnu/sound/soc/codecs/rt5670.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/rt5670.c	2019-07-28 02:28:39.000000000 -0400
@@ -2882,6 +2882,18 @@ static const struct dmi_system_id dmi_pl
 						 RT5670_DEV_GPIO |
 						 RT5670_JD_MODE3),
 	},
+	{
+		.callback = rt5670_quirk_cb,
+		.ident = "Aegex 10 tablet (RU2)",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "AEGEX"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "RU2"),
+		},
+		.driver_data = (unsigned long *)(RT5670_DMIC_EN |
+						 RT5670_DMIC2_INR |
+						 RT5670_DEV_GPIO |
+						 RT5670_JD_MODE3),
+	},
 	{}
 };
 
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/rt5677-spi.c linux-libre-5.1.21-gnu/sound/soc/codecs/rt5677-spi.c
--- linux-libre-5.1-gnu/sound/soc/codecs/rt5677-spi.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/rt5677-spi.c	2019-07-28 02:28:39.000000000 -0400
@@ -57,13 +57,15 @@ static DEFINE_MUTEX(spi_mutex);
  * RT5677_SPI_READ/WRITE_32:	Transfer 4 bytes
  * RT5677_SPI_READ/WRITE_BURST:	Transfer any multiples of 8 bytes
  *
- * For example, reading 260 bytes at 0x60030002 uses the following commands:
- * 0x60030002 RT5677_SPI_READ_16	2 bytes
+ * Note:
+ * 16 Bit writes and reads are restricted to the address range
+ * 0x18020000 ~ 0x18021000
+ *
+ * For example, reading 256 bytes at 0x60030004 uses the following commands:
  * 0x60030004 RT5677_SPI_READ_32	4 bytes
  * 0x60030008 RT5677_SPI_READ_BURST	240 bytes
  * 0x600300F8 RT5677_SPI_READ_BURST	8 bytes
  * 0x60030100 RT5677_SPI_READ_32	4 bytes
- * 0x60030104 RT5677_SPI_READ_16	2 bytes
  *
  * Input:
  * @read: true for read commands; false for write commands
@@ -78,15 +80,13 @@ static u8 rt5677_spi_select_cmd(bool rea
 {
 	u8 cmd;
 
-	if (align == 2 || align == 6 || remain == 2) {
-		cmd = RT5677_SPI_READ_16;
-		*len = 2;
-	} else if (align == 4 || remain <= 6) {
+	if (align == 4 || remain <= 4) {
 		cmd = RT5677_SPI_READ_32;
 		*len = 4;
 	} else {
 		cmd = RT5677_SPI_READ_BURST;
-		*len = min_t(u32, remain & ~7, RT5677_SPI_BURST_LEN);
+		*len = (((remain - 1) >> 3) + 1) << 3;
+		*len = min_t(u32, *len, RT5677_SPI_BURST_LEN);
 	}
 	return read ? cmd : cmd + 1;
 }
@@ -107,7 +107,7 @@ static void rt5677_spi_reverse(u8 *dst,
 	}
 }
 
-/* Read DSP address space using SPI. addr and len have to be 2-byte aligned. */
+/* Read DSP address space using SPI. addr and len have to be 4-byte aligned. */
 int rt5677_spi_read(u32 addr, void *rxbuf, size_t len)
 {
 	u32 offset;
@@ -123,7 +123,7 @@ int rt5677_spi_read(u32 addr, void *rxbu
 	if (!g_spi)
 		return -ENODEV;
 
-	if ((addr & 1) || (len & 1)) {
+	if ((addr & 3) || (len & 3)) {
 		dev_err(&g_spi->dev, "Bad read align 0x%x(%zu)\n", addr, len);
 		return -EACCES;
 	}
@@ -158,13 +158,13 @@ int rt5677_spi_read(u32 addr, void *rxbu
 }
 EXPORT_SYMBOL_GPL(rt5677_spi_read);
 
-/* Write DSP address space using SPI. addr has to be 2-byte aligned.
- * If len is not 2-byte aligned, an extra byte of zero is written at the end
+/* Write DSP address space using SPI. addr has to be 4-byte aligned.
+ * If len is not 4-byte aligned, then extra zeros are written at the end
  * as padding.
  */
 int rt5677_spi_write(u32 addr, const void *txbuf, size_t len)
 {
-	u32 offset, len_with_pad = len;
+	u32 offset;
 	int status = 0;
 	struct spi_transfer t;
 	struct spi_message m;
@@ -177,22 +177,19 @@ int rt5677_spi_write(u32 addr, const voi
 	if (!g_spi)
 		return -ENODEV;
 
-	if (addr & 1) {
+	if (addr & 3) {
 		dev_err(&g_spi->dev, "Bad write align 0x%x(%zu)\n", addr, len);
 		return -EACCES;
 	}
 
-	if (len & 1)
-		len_with_pad = len + 1;
-
 	memset(&t, 0, sizeof(t));
 	t.tx_buf = buf;
 	t.speed_hz = RT5677_SPI_FREQ;
 	spi_message_init_with_transfers(&m, &t, 1);
 
-	for (offset = 0; offset < len_with_pad;) {
+	for (offset = 0; offset < len;) {
 		spi_cmd = rt5677_spi_select_cmd(false, (addr + offset) & 7,
-				len_with_pad - offset, &t.len);
+				len - offset, &t.len);
 
 		/* Construct SPI message header */
 		buf[0] = spi_cmd;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/codecs/wcd9335.c linux-libre-5.1.21-gnu/sound/soc/codecs/wcd9335.c
--- linux-libre-5.1-gnu/sound/soc/codecs/wcd9335.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/codecs/wcd9335.c	2019-07-28 02:28:39.000000000 -0400
@@ -5188,6 +5188,7 @@ static int wcd9335_slim_status(struct sl
 
 	wcd->slim = sdev;
 	wcd->slim_ifc_dev = of_slim_get_device(sdev->ctrl, ifc_dev_np);
+	of_node_put(ifc_dev_np);
 	if (!wcd->slim_ifc_dev) {
 		dev_err(dev, "Unable to get SLIM Interface device\n");
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/fsl/eukrea-tlv320.c linux-libre-5.1.21-gnu/sound/soc/fsl/eukrea-tlv320.c
--- linux-libre-5.1-gnu/sound/soc/fsl/eukrea-tlv320.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/fsl/eukrea-tlv320.c	2019-07-28 02:28:39.000000000 -0400
@@ -118,13 +118,13 @@ static int eukrea_tlv320_probe(struct pl
 		if (ret) {
 			dev_err(&pdev->dev,
 				"fsl,mux-int-port node missing or invalid.\n");
-			return ret;
+			goto err;
 		}
 		ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port);
 		if (ret) {
 			dev_err(&pdev->dev,
 				"fsl,mux-ext-port node missing or invalid.\n");
-			return ret;
+			goto err;
 		}
 
 		/*
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/fsl/fsl_asrc.c linux-libre-5.1.21-gnu/sound/soc/fsl/fsl_asrc.c
--- linux-libre-5.1-gnu/sound/soc/fsl/fsl_asrc.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/fsl/fsl_asrc.c	2019-07-28 02:28:39.000000000 -0400
@@ -282,8 +282,8 @@ static int fsl_asrc_config_pair(struct f
 		return -EINVAL;
 	}
 
-	if ((outrate > 8000 && outrate < 30000) &&
-	    (outrate/inrate > 24 || inrate/outrate > 8)) {
+	if ((outrate >= 8000 && outrate <= 30000) &&
+	    (outrate > 24 * inrate || inrate > 8 * outrate)) {
 		pair_err("exceed supported ratio range [1/24, 8] for \
 				inrate/outrate: %d/%d\n", inrate, outrate);
 		return -EINVAL;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/fsl/fsl_esai.c linux-libre-5.1.21-gnu/sound/soc/fsl/fsl_esai.c
--- linux-libre-5.1-gnu/sound/soc/fsl/fsl_esai.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/fsl/fsl_esai.c	2019-07-28 02:28:39.000000000 -0400
@@ -251,7 +251,7 @@ static int fsl_esai_set_dai_sysclk(struc
 		break;
 	case ESAI_HCKT_EXTAL:
 		ecr |= ESAI_ECR_ETI;
-		/* fall through */
+		break;
 	case ESAI_HCKR_EXTAL:
 		ecr |= ESAI_ECR_ERI;
 		break;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/fsl/fsl_sai.c linux-libre-5.1.21-gnu/sound/soc/fsl/fsl_sai.c
--- linux-libre-5.1-gnu/sound/soc/fsl/fsl_sai.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/fsl/fsl_sai.c	2019-07-28 02:28:39.000000000 -0400
@@ -268,12 +268,14 @@ static int fsl_sai_set_dai_fmt_tr(struct
 	case SND_SOC_DAIFMT_CBS_CFS:
 		val_cr2 |= FSL_SAI_CR2_BCD_MSTR;
 		val_cr4 |= FSL_SAI_CR4_FSD_MSTR;
+		sai->is_slave_mode = false;
 		break;
 	case SND_SOC_DAIFMT_CBM_CFM:
 		sai->is_slave_mode = true;
 		break;
 	case SND_SOC_DAIFMT_CBS_CFM:
 		val_cr2 |= FSL_SAI_CR2_BCD_MSTR;
+		sai->is_slave_mode = false;
 		break;
 	case SND_SOC_DAIFMT_CBM_CFS:
 		val_cr4 |= FSL_SAI_CR4_FSD_MSTR;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/fsl/fsl_utils.c linux-libre-5.1.21-gnu/sound/soc/fsl/fsl_utils.c
--- linux-libre-5.1-gnu/sound/soc/fsl/fsl_utils.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/fsl/fsl_utils.c	2019-07-28 02:28:39.000000000 -0400
@@ -71,6 +71,7 @@ int fsl_asoc_get_dma_channel(struct devi
 	iprop = of_get_property(dma_np, "cell-index", NULL);
 	if (!iprop) {
 		of_node_put(dma_np);
+		of_node_put(dma_channel_np);
 		return -EINVAL;
 	}
 	*dma_id = be32_to_cpup(iprop);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/fsl/Kconfig linux-libre-5.1.21-gnu/sound/soc/fsl/Kconfig
--- linux-libre-5.1-gnu/sound/soc/fsl/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/fsl/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -182,16 +182,17 @@ config SND_MPC52xx_SOC_EFIKA
 
 endif # SND_POWERPC_SOC
 
+config SND_SOC_IMX_PCM_FIQ
+	tristate
+	default y if SND_SOC_IMX_SSI=y && (SND_SOC_FSL_SSI=m || SND_SOC_FSL_SPDIF=m) && (MXC_TZIC || MXC_AVIC)
+	select FIQ
+
 if SND_IMX_SOC
 
 config SND_SOC_IMX_SSI
 	tristate
 	select SND_SOC_FSL_UTILS
 
-config SND_SOC_IMX_PCM_FIQ
-	tristate
-	select FIQ
-
 comment "SoC Audio support for Freescale i.MX boards:"
 
 config SND_MXC_SOC_WM1133_EV1
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/generic/audio-graph-card.c linux-libre-5.1.21-gnu/sound/soc/generic/audio-graph-card.c
--- linux-libre-5.1-gnu/sound/soc/generic/audio-graph-card.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/generic/audio-graph-card.c	2019-07-28 02:28:39.000000000 -0400
@@ -460,9 +460,6 @@ static int graph_for_each_link(struct gr
 			codec_ep = of_graph_get_remote_endpoint(cpu_ep);
 			codec_port = of_get_parent(codec_ep);
 
-			of_node_put(codec_ep);
-			of_node_put(codec_port);
-
 			/* get convert-xxx property */
 			memset(&adata, 0, sizeof(adata));
 			graph_get_conversion(dev, codec_ep, &adata);
@@ -482,6 +479,9 @@ static int graph_for_each_link(struct gr
 			else
 				ret = func_noml(priv, cpu_ep, codec_ep, li);
 
+			of_node_put(codec_ep);
+			of_node_put(codec_port);
+
 			if (ret < 0)
 				return ret;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/intel/atom/sst/sst_pvt.c linux-libre-5.1.21-gnu/sound/soc/intel/atom/sst/sst_pvt.c
--- linux-libre-5.1-gnu/sound/soc/intel/atom/sst/sst_pvt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/intel/atom/sst/sst_pvt.c	2019-07-28 02:28:39.000000000 -0400
@@ -166,11 +166,11 @@ int sst_create_ipc_msg(struct ipc_post *
 {
 	struct ipc_post *msg;
 
-	msg = kzalloc(sizeof(*msg), GFP_KERNEL);
+	msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
 	if (!msg)
 		return -ENOMEM;
 	if (large) {
-		msg->mailbox_data = kzalloc(SST_MAILBOX_SIZE, GFP_KERNEL);
+		msg->mailbox_data = kzalloc(SST_MAILBOX_SIZE, GFP_ATOMIC);
 		if (!msg->mailbox_data) {
 			kfree(msg);
 			return -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/intel/boards/bytcht_es8316.c linux-libre-5.1.21-gnu/sound/soc/intel/boards/bytcht_es8316.c
--- linux-libre-5.1-gnu/sound/soc/intel/boards/bytcht_es8316.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/intel/boards/bytcht_es8316.c	2019-07-28 02:28:39.000000000 -0400
@@ -471,6 +471,7 @@ static int snd_byt_cht_es8316_mc_probe(s
 	}
 
 	/* override plaform name, if required */
+	byt_cht_es8316_card.dev = dev;
 	platform_name = mach->mach_params.platform;
 
 	ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_es8316_card,
@@ -538,7 +539,6 @@ static int snd_byt_cht_es8316_mc_probe(s
 		 (quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "mono" : "stereo",
 		 mic_name[BYT_CHT_ES8316_MAP(quirk)]);
 	byt_cht_es8316_card.long_name = long_name;
-	byt_cht_es8316_card.dev = dev;
 	snd_soc_card_set_drvdata(&byt_cht_es8316_card, priv);
 
 	ret = devm_snd_soc_register_card(dev, &byt_cht_es8316_card);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/intel/boards/cht_bsw_max98090_ti.c linux-libre-5.1.21-gnu/sound/soc/intel/boards/cht_bsw_max98090_ti.c
--- linux-libre-5.1-gnu/sound/soc/intel/boards/cht_bsw_max98090_ti.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/intel/boards/cht_bsw_max98090_ti.c	2019-07-28 02:28:39.000000000 -0400
@@ -454,6 +454,7 @@ static int snd_cht_mc_probe(struct platf
 	}
 
 	/* override plaform name, if required */
+	snd_soc_card_cht.dev = &pdev->dev;
 	mach = (&pdev->dev)->platform_data;
 	platform_name = mach->mach_params.platform;
 
@@ -463,7 +464,6 @@ static int snd_cht_mc_probe(struct platf
 		return ret_val;
 
 	/* register the soc card */
-	snd_soc_card_cht.dev = &pdev->dev;
 	snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
 
 	if (drv->quirks & QUIRK_PMC_PLT_CLK_0)
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/intel/boards/cht_bsw_nau8824.c linux-libre-5.1.21-gnu/sound/soc/intel/boards/cht_bsw_nau8824.c
--- linux-libre-5.1-gnu/sound/soc/intel/boards/cht_bsw_nau8824.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/intel/boards/cht_bsw_nau8824.c	2019-07-28 02:28:39.000000000 -0400
@@ -257,6 +257,7 @@ static int snd_cht_mc_probe(struct platf
 	snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
 
 	/* override plaform name, if required */
+	snd_soc_card_cht.dev = &pdev->dev;
 	mach = (&pdev->dev)->platform_data;
 	platform_name = mach->mach_params.platform;
 
@@ -266,7 +267,6 @@ static int snd_cht_mc_probe(struct platf
 		return ret_val;
 
 	/* register the soc card */
-	snd_soc_card_cht.dev = &pdev->dev;
 	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
 	if (ret_val) {
 		dev_err(&pdev->dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/intel/boards/cht_bsw_rt5672.c linux-libre-5.1.21-gnu/sound/soc/intel/boards/cht_bsw_rt5672.c
--- linux-libre-5.1-gnu/sound/soc/intel/boards/cht_bsw_rt5672.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/intel/boards/cht_bsw_rt5672.c	2019-07-28 02:28:39.000000000 -0400
@@ -425,6 +425,7 @@ static int snd_cht_mc_probe(struct platf
 	}
 
 	/* override plaform name, if required */
+	snd_soc_card_cht.dev = &pdev->dev;
 	platform_name = mach->mach_params.platform;
 
 	ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
@@ -442,7 +443,6 @@ static int snd_cht_mc_probe(struct platf
 	snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
 
 	/* register the soc card */
-	snd_soc_card_cht.dev = &pdev->dev;
 	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
 	if (ret_val) {
 		dev_err(&pdev->dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/intel/boards/kbl_da7219_max98357a.c linux-libre-5.1.21-gnu/sound/soc/intel/boards/kbl_da7219_max98357a.c
--- linux-libre-5.1-gnu/sound/soc/intel/boards/kbl_da7219_max98357a.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/intel/boards/kbl_da7219_max98357a.c	2019-07-28 02:28:39.000000000 -0400
@@ -188,7 +188,7 @@ static int kabylake_da7219_codec_init(st
 
 	jack = &ctx->kabylake_headset;
 
-	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
+	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
 	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
 	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/intel/common/soc-acpi-intel-byt-match.c linux-libre-5.1.21-gnu/sound/soc/intel/common/soc-acpi-intel-byt-match.c
--- linux-libre-5.1-gnu/sound/soc/intel/common/soc-acpi-intel-byt-match.c	2019-05-05 21:48:09.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/intel/common/soc-acpi-intel-byt-match.c	2019-07-28 13:53:44.000000000 -0400
@@ -22,6 +22,7 @@ static unsigned long byt_machine_id;
 
 #define BYT_THINKPAD_10  1
 #define BYT_POV_P1006W   2
+#define BYT_AEGEX_10     3
 
 static int byt_thinkpad10_quirk_cb(const struct dmi_system_id *id)
 {
@@ -35,6 +36,12 @@ static int byt_pov_p1006w_quirk_cb(const
 	return 1;
 }
 
+static int byt_aegex10_quirk_cb(const struct dmi_system_id *id)
+{
+	byt_machine_id = BYT_AEGEX_10;
+	return 1;
+}
+
 static const struct dmi_system_id byt_table[] = {
 	{
 		.callback = byt_thinkpad10_quirk_cb,
@@ -75,9 +82,18 @@ static const struct dmi_system_id byt_ta
 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
 		},
 	},
+	{
+		/* Aegex 10 tablet (RU2) */
+		.callback = byt_aegex10_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "AEGEX"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "RU2"),
+		},
+	},
 	{ }
 };
 
+/* The Thinkapd 10 and Aegex 10 tablets have the same ID problem */
 static struct snd_soc_acpi_mach byt_thinkpad_10 = {
 	.id = "10EC5640",
 	.drv_name = "cht-bsw-rt5672",
@@ -104,6 +120,7 @@ static struct snd_soc_acpi_mach *byt_qui
 
 	switch (byt_machine_id) {
 	case BYT_THINKPAD_10:
+	case BYT_AEGEX_10:
 		return &byt_thinkpad_10;
 	case BYT_POV_P1006W:
 		return &byt_pov_p1006w;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/intel/common/sst-firmware.c linux-libre-5.1.21-gnu/sound/soc/intel/common/sst-firmware.c
--- linux-libre-5.1-gnu/sound/soc/intel/common/sst-firmware.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/intel/common/sst-firmware.c	2019-07-28 02:28:39.000000000 -0400
@@ -1251,11 +1251,15 @@ struct sst_dsp *sst_dsp_new(struct devic
 		goto irq_err;
 
 	err = sst_dma_new(sst);
-	if (err)
-		dev_warn(dev, "sst_dma_new failed %d\n", err);
+	if (err)  {
+		dev_err(dev, "sst_dma_new failed %d\n", err);
+		goto dma_err;
+	}
 
 	return sst;
 
+dma_err:
+	free_irq(sst->irq, sst);
 irq_err:
 	if (sst->ops->free)
 		sst->ops->free(sst);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/meson/axg-tdm.h linux-libre-5.1.21-gnu/sound/soc/meson/axg-tdm.h
--- linux-libre-5.1-gnu/sound/soc/meson/axg-tdm.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/meson/axg-tdm.h	2019-07-28 02:28:39.000000000 -0400
@@ -40,7 +40,7 @@ struct axg_tdm_iface {
 
 static inline bool axg_tdm_lrclk_invert(unsigned int fmt)
 {
-	return (fmt & SND_SOC_DAIFMT_I2S) ^
+	return ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_I2S) ^
 		!!(fmt & (SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_NB_IF));
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/sh/rcar/ctu.c linux-libre-5.1.21-gnu/sound/soc/sh/rcar/ctu.c
--- linux-libre-5.1-gnu/sound/soc/sh/rcar/ctu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/sh/rcar/ctu.c	2019-07-28 02:28:39.000000000 -0400
@@ -108,7 +108,7 @@ static int rsnd_ctu_probe_(struct rsnd_m
 			   struct rsnd_dai_stream *io,
 			   struct rsnd_priv *priv)
 {
-	return rsnd_cmd_attach(io, rsnd_mod_id(mod) / 4);
+	return rsnd_cmd_attach(io, rsnd_mod_id(mod));
 }
 
 static void rsnd_ctu_value_init(struct rsnd_dai_stream *io,
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/soc-core.c linux-libre-5.1.21-gnu/sound/soc/soc-core.c
--- linux-libre-5.1-gnu/sound/soc/soc-core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/soc-core.c	2019-07-28 02:28:39.000000000 -0400
@@ -158,9 +158,10 @@ static void soc_init_component_debugfs(s
 				component->card->debugfs_card_root);
 	}
 
-	if (!component->debugfs_root) {
+	if (IS_ERR(component->debugfs_root)) {
 		dev_warn(component->dev,
-			"ASoC: Failed to create component debugfs directory\n");
+			"ASoC: Failed to create component debugfs directory: %ld\n",
+			PTR_ERR(component->debugfs_root));
 		return;
 	}
 
@@ -212,23 +213,29 @@ static void soc_init_card_debugfs(struct
 
 	card->debugfs_card_root = debugfs_create_dir(card->name,
 						     snd_soc_debugfs_root);
-	if (!card->debugfs_card_root) {
+	if (IS_ERR(card->debugfs_card_root)) {
 		dev_warn(card->dev,
-			 "ASoC: Failed to create card debugfs directory\n");
+			 "ASoC: Failed to create card debugfs directory: %ld\n",
+			 PTR_ERR(card->debugfs_card_root));
+		card->debugfs_card_root = NULL;
 		return;
 	}
 
 	card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
 						    card->debugfs_card_root,
 						    &card->pop_time);
-	if (!card->debugfs_pop_time)
+	if (IS_ERR(card->debugfs_pop_time))
 		dev_warn(card->dev,
-			 "ASoC: Failed to create pop time debugfs file\n");
+			 "ASoC: Failed to create pop time debugfs file: %ld\n",
+			 PTR_ERR(card->debugfs_pop_time));
 }
 
 static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
 {
+	if (!card->debugfs_card_root)
+		return;
 	debugfs_remove_recursive(card->debugfs_card_root);
+	card->debugfs_card_root = NULL;
 }
 
 static void snd_soc_debugfs_init(void)
@@ -2034,8 +2041,10 @@ static void soc_check_tplg_fes(struct sn
 static int soc_cleanup_card_resources(struct snd_soc_card *card)
 {
 	/* free the ALSA card at first; this syncs with pending operations */
-	if (card->snd_card)
+	if (card->snd_card) {
 		snd_card_free(card->snd_card);
+		card->snd_card = NULL;
+	}
 
 	/* remove and free each DAI */
 	soc_remove_dai_links(card);
@@ -2062,6 +2071,16 @@ static int snd_soc_instantiate_card(stru
 	int ret, i, order;
 
 	mutex_lock(&client_mutex);
+	for_each_card_prelinks(card, i, dai_link) {
+		ret = soc_init_dai_link(card, dai_link);
+		if (ret) {
+			soc_cleanup_platform(card);
+			dev_err(card->dev, "ASoC: failed to init link %s: %d\n",
+				dai_link->name, ret);
+			mutex_unlock(&client_mutex);
+			return ret;
+		}
+	}
 	mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
 
 	card->dapm.bias_level = SND_SOC_BIAS_OFF;
@@ -2786,26 +2805,9 @@ static int snd_soc_bind_card(struct snd_
  */
 int snd_soc_register_card(struct snd_soc_card *card)
 {
-	int i, ret;
-	struct snd_soc_dai_link *link;
-
 	if (!card->name || !card->dev)
 		return -EINVAL;
 
-	mutex_lock(&client_mutex);
-	for_each_card_prelinks(card, i, link) {
-
-		ret = soc_init_dai_link(card, link);
-		if (ret) {
-			soc_cleanup_platform(card);
-			dev_err(card->dev, "ASoC: failed to init link %s\n",
-				link->name);
-			mutex_unlock(&client_mutex);
-			return ret;
-		}
-	}
-	mutex_unlock(&client_mutex);
-
 	dev_set_drvdata(card->dev, card);
 
 	snd_soc_initialize_card_lists(card);
@@ -2828,10 +2830,21 @@ EXPORT_SYMBOL_GPL(snd_soc_register_card)
 
 static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister)
 {
+	struct snd_soc_pcm_runtime *rtd;
+	int order;
+
 	if (card->instantiated) {
 		card->instantiated = false;
 		snd_soc_dapm_shutdown(card);
 		snd_soc_flush_all_delayed_work(card);
+
+		/* remove all components used by DAI links on this card */
+		for_each_comp_order(order) {
+			for_each_card_rtds(card, rtd) {
+				soc_remove_link_components(card, rtd, order);
+			}
+		}
+
 		soc_cleanup_card_resources(card);
 		if (!unregister)
 			list_add(&card->list, &unbind_card_list);
@@ -2849,7 +2862,9 @@ static void snd_soc_unbind_card(struct s
  */
 int snd_soc_unregister_card(struct snd_soc_card *card)
 {
+	mutex_lock(&client_mutex);
 	snd_soc_unbind_card(card, true);
+	mutex_unlock(&client_mutex);
 	dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name);
 
 	return 0;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/soc-dapm.c linux-libre-5.1.21-gnu/sound/soc/soc-dapm.c
--- linux-libre-5.1-gnu/sound/soc/soc-dapm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/soc-dapm.c	2019-07-28 02:28:39.000000000 -0400
@@ -2154,23 +2154,25 @@ void snd_soc_dapm_debugfs_init(struct sn
 {
 	struct dentry *d;
 
-	if (!parent)
+	if (!parent || IS_ERR(parent))
 		return;
 
 	dapm->debugfs_dapm = debugfs_create_dir("dapm", parent);
 
-	if (!dapm->debugfs_dapm) {
+	if (IS_ERR(dapm->debugfs_dapm)) {
 		dev_warn(dapm->dev,
-		       "ASoC: Failed to create DAPM debugfs directory\n");
+			 "ASoC: Failed to create DAPM debugfs directory %ld\n",
+			 PTR_ERR(dapm->debugfs_dapm));
 		return;
 	}
 
 	d = debugfs_create_file("bias_level", 0444,
 				dapm->debugfs_dapm, dapm,
 				&dapm_bias_fops);
-	if (!d)
+	if (IS_ERR(d))
 		dev_warn(dapm->dev,
-			 "ASoC: Failed to create bias level debugfs file\n");
+			 "ASoC: Failed to create bias level debugfs file: %ld\n",
+			 PTR_ERR(d));
 }
 
 static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w)
@@ -2184,15 +2186,18 @@ static void dapm_debugfs_add_widget(stru
 	d = debugfs_create_file(w->name, 0444,
 				dapm->debugfs_dapm, w,
 				&dapm_widget_power_fops);
-	if (!d)
+	if (IS_ERR(d))
 		dev_warn(w->dapm->dev,
-			"ASoC: Failed to create %s debugfs file\n",
-			w->name);
+			 "ASoC: Failed to create %s debugfs file: %ld\n",
+			 w->name, PTR_ERR(d));
 }
 
 static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
 {
+	if (!dapm->debugfs_dapm)
+		return;
 	debugfs_remove_recursive(dapm->debugfs_dapm);
+	dapm->debugfs_dapm = NULL;
 }
 
 #else
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/soc-pcm.c linux-libre-5.1.21-gnu/sound/soc/soc-pcm.c
--- linux-libre-5.1-gnu/sound/soc/soc-pcm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/soc-pcm.c	2019-07-28 02:28:39.000000000 -0400
@@ -2469,7 +2469,8 @@ int dpcm_be_dai_prepare(struct snd_soc_p
 
 		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) &&
-		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND))
+		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND) &&
+		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED))
 			continue;
 
 		dev_dbg(be->dev, "ASoC: prepare BE %s\n",
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/sunxi/sun4i-i2s.c linux-libre-5.1.21-gnu/sound/soc/sunxi/sun4i-i2s.c
--- linux-libre-5.1-gnu/sound/soc/sunxi/sun4i-i2s.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/sunxi/sun4i-i2s.c	2019-07-28 02:28:39.000000000 -0400
@@ -110,7 +110,7 @@
 
 #define SUN8I_I2S_TX_CHAN_MAP_REG	0x44
 #define SUN8I_I2S_TX_CHAN_SEL_REG	0x34
-#define SUN8I_I2S_TX_CHAN_OFFSET_MASK		GENMASK(13, 11)
+#define SUN8I_I2S_TX_CHAN_OFFSET_MASK		GENMASK(13, 12)
 #define SUN8I_I2S_TX_CHAN_OFFSET(offset)	(offset << 12)
 #define SUN8I_I2S_TX_CHAN_EN_MASK		GENMASK(11, 4)
 #define SUN8I_I2S_TX_CHAN_EN(num_chan)		(((1 << num_chan) - 1) << 4)
@@ -460,6 +460,10 @@ static int sun4i_i2s_set_fmt(struct snd_
 		regmap_update_bits(i2s->regmap, SUN8I_I2S_TX_CHAN_SEL_REG,
 				   SUN8I_I2S_TX_CHAN_OFFSET_MASK,
 				   SUN8I_I2S_TX_CHAN_OFFSET(offset));
+
+		regmap_update_bits(i2s->regmap, SUN8I_I2S_RX_CHAN_SEL_REG,
+				   SUN8I_I2S_TX_CHAN_OFFSET_MASK,
+				   SUN8I_I2S_TX_CHAN_OFFSET(offset));
 	}
 
 	regmap_field_write(i2s->field_fmt_mode, val);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/ti/davinci-mcasp.c linux-libre-5.1.21-gnu/sound/soc/ti/davinci-mcasp.c
--- linux-libre-5.1-gnu/sound/soc/ti/davinci-mcasp.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/ti/davinci-mcasp.c	2019-07-28 02:28:39.000000000 -0400
@@ -45,6 +45,7 @@
 
 #define MCASP_MAX_AFIFO_DEPTH	64
 
+#ifdef CONFIG_PM
 static u32 context_regs[] = {
 	DAVINCI_MCASP_TXFMCTL_REG,
 	DAVINCI_MCASP_RXFMCTL_REG,
@@ -68,6 +69,7 @@ struct davinci_mcasp_context {
 	u32	*xrsr_regs; /* for serializer configuration */
 	bool	pm_state;
 };
+#endif
 
 struct davinci_mcasp_ruledata {
 	struct davinci_mcasp *mcasp;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/soc/ti/Kconfig linux-libre-5.1.21-gnu/sound/soc/ti/Kconfig
--- linux-libre-5.1-gnu/sound/soc/ti/Kconfig	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/soc/ti/Kconfig	2019-07-28 02:28:39.000000000 -0400
@@ -21,8 +21,8 @@ config SND_SOC_DAVINCI_ASP
 
 config SND_SOC_DAVINCI_MCASP
 	tristate "Multichannel Audio Serial Port (McASP) support"
-	select SND_SOC_TI_EDMA_PCM if TI_EDMA
-	select SND_SOC_TI_SDMA_PCM if DMA_OMAP
+	select SND_SOC_TI_EDMA_PCM
+	select SND_SOC_TI_SDMA_PCM
 	help
 	  Say Y or M here if you want to have support for McASP IP found in
 	  various Texas Instruments SoCs like:
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/usb/line6/driver.c linux-libre-5.1.21-gnu/sound/usb/line6/driver.c
--- linux-libre-5.1-gnu/sound/usb/line6/driver.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/usb/line6/driver.c	2019-07-28 02:28:39.000000000 -0400
@@ -720,6 +720,15 @@ static int line6_init_cap_control(struct
 	return 0;
 }
 
+static void line6_startup_work(struct work_struct *work)
+{
+	struct usb_line6 *line6 =
+		container_of(work, struct usb_line6, startup_work.work);
+
+	if (line6->startup)
+		line6->startup(line6);
+}
+
 /*
 	Probe USB device.
 */
@@ -755,6 +764,7 @@ int line6_probe(struct usb_interface *in
 	line6->properties = properties;
 	line6->usbdev = usbdev;
 	line6->ifcdev = &interface->dev;
+	INIT_DELAYED_WORK(&line6->startup_work, line6_startup_work);
 
 	strcpy(card->id, properties->id);
 	strcpy(card->driver, driver_name);
@@ -825,6 +835,8 @@ void line6_disconnect(struct usb_interfa
 	if (WARN_ON(usbdev != line6->usbdev))
 		return;
 
+	cancel_delayed_work(&line6->startup_work);
+
 	if (line6->urb_listen != NULL)
 		line6_stop_listen(line6);
 
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/usb/line6/driver.h linux-libre-5.1.21-gnu/sound/usb/line6/driver.h
--- linux-libre-5.1-gnu/sound/usb/line6/driver.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/usb/line6/driver.h	2019-07-28 02:28:39.000000000 -0400
@@ -178,11 +178,15 @@ struct usb_line6 {
 			fifo;
 	} messages;
 
+	/* Work for delayed PCM startup */
+	struct delayed_work startup_work;
+
 	/* If MIDI is supported, buffer_message contains the pre-processed data;
 	 * otherwise the data is only in urb_listen (buffer_incoming).
 	 */
 	void (*process_message)(struct usb_line6 *);
 	void (*disconnect)(struct usb_line6 *line6);
+	void (*startup)(struct usb_line6 *line6);
 };
 
 extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1,
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/usb/line6/pcm.c linux-libre-5.1.21-gnu/sound/usb/line6/pcm.c
--- linux-libre-5.1-gnu/sound/usb/line6/pcm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/usb/line6/pcm.c	2019-07-28 02:28:39.000000000 -0400
@@ -560,6 +560,11 @@ int line6_init_pcm(struct usb_line6 *lin
 	line6pcm->max_packet_size_out =
 		usb_maxpacket(line6->usbdev,
 			usb_sndisocpipe(line6->usbdev, ep_write), 1);
+	if (!line6pcm->max_packet_size_in || !line6pcm->max_packet_size_out) {
+		dev_err(line6pcm->line6->ifcdev,
+			"cannot get proper max packet size\n");
+		return -EINVAL;
+	}
 
 	spin_lock_init(&line6pcm->out.lock);
 	spin_lock_init(&line6pcm->in.lock);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/usb/line6/toneport.c linux-libre-5.1.21-gnu/sound/usb/line6/toneport.c
--- linux-libre-5.1-gnu/sound/usb/line6/toneport.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/usb/line6/toneport.c	2019-07-28 02:28:39.000000000 -0400
@@ -54,9 +54,6 @@ struct usb_line6_toneport {
 	/* Firmware version (x 100) */
 	u8 firmware_version;
 
-	/* Timer for delayed PCM startup */
-	struct timer_list timer;
-
 	/* Device type */
 	enum line6_device_type type;
 
@@ -241,11 +238,8 @@ static int snd_toneport_source_put(struc
 	return 1;
 }
 
-static void toneport_start_pcm(struct timer_list *t)
+static void toneport_startup(struct usb_line6 *line6)
 {
-	struct usb_line6_toneport *toneport = from_timer(toneport, t, timer);
-	struct usb_line6 *line6 = &toneport->line6;
-
 	line6_pcm_acquire(line6->line6pcm, LINE6_STREAM_MONITOR, true);
 }
 
@@ -393,7 +387,8 @@ static int toneport_setup(struct usb_lin
 	if (toneport_has_led(toneport))
 		toneport_update_led(toneport);
 
-	mod_timer(&toneport->timer, jiffies + TONEPORT_PCM_DELAY * HZ);
+	schedule_delayed_work(&toneport->line6.startup_work,
+			      msecs_to_jiffies(TONEPORT_PCM_DELAY * 1000));
 	return 0;
 }
 
@@ -405,8 +400,6 @@ static void line6_toneport_disconnect(st
 	struct usb_line6_toneport *toneport =
 		(struct usb_line6_toneport *)line6;
 
-	del_timer_sync(&toneport->timer);
-
 	if (toneport_has_led(toneport))
 		toneport_remove_leds(toneport);
 }
@@ -422,9 +415,9 @@ static int toneport_init(struct usb_line
 	struct usb_line6_toneport *toneport =  (struct usb_line6_toneport *) line6;
 
 	toneport->type = id->driver_info;
-	timer_setup(&toneport->timer, toneport_start_pcm, 0);
 
 	line6->disconnect = line6_toneport_disconnect;
+	line6->startup = toneport_startup;
 
 	/* initialize PCM subsystem: */
 	err = line6_init_pcm(line6, &toneport_pcm_properties);
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/usb/mixer.c linux-libre-5.1.21-gnu/sound/usb/mixer.c
--- linux-libre-5.1-gnu/sound/usb/mixer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/usb/mixer.c	2019-07-28 02:28:39.000000000 -0400
@@ -2318,7 +2318,7 @@ static struct procunit_info extunits[] =
  */
 static int build_audio_procunit(struct mixer_build *state, int unitid,
 				void *raw_desc, struct procunit_info *list,
-				char *name)
+				bool extension_unit)
 {
 	struct uac_processing_unit_descriptor *desc = raw_desc;
 	int num_ins;
@@ -2335,6 +2335,8 @@ static int build_audio_procunit(struct m
 	static struct procunit_info default_info = {
 		0, NULL, default_value_info
 	};
+	const char *name = extension_unit ?
+		"Extension Unit" : "Processing Unit";
 
 	if (desc->bLength < 13) {
 		usb_audio_err(state->chip, "invalid %s descriptor (id %d)\n", name, unitid);
@@ -2448,7 +2450,10 @@ static int build_audio_procunit(struct m
 		} else if (info->name) {
 			strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name));
 		} else {
-			nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol);
+			if (extension_unit)
+				nameid = uac_extension_unit_iExtension(desc, state->mixer->protocol);
+			else
+				nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol);
 			len = 0;
 			if (nameid)
 				len = snd_usb_copy_string_desc(state->chip,
@@ -2481,10 +2486,10 @@ static int parse_audio_processing_unit(s
 	case UAC_VERSION_2:
 	default:
 		return build_audio_procunit(state, unitid, raw_desc,
-				procunits, "Processing Unit");
+					    procunits, false);
 	case UAC_VERSION_3:
 		return build_audio_procunit(state, unitid, raw_desc,
-				uac3_procunits, "Processing Unit");
+					    uac3_procunits, false);
 	}
 }
 
@@ -2495,8 +2500,7 @@ static int parse_audio_extension_unit(st
 	 * Note that we parse extension units with processing unit descriptors.
 	 * That's ok as the layout is the same.
 	 */
-	return build_audio_procunit(state, unitid, raw_desc,
-				    extunits, "Extension Unit");
+	return build_audio_procunit(state, unitid, raw_desc, extunits, true);
 }
 
 /*
@@ -2675,6 +2679,8 @@ static int parse_audio_selector_unit(str
 	kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval);
 	if (! kctl) {
 		usb_audio_err(state->chip, "cannot malloc kcontrol\n");
+		for (i = 0; i < desc->bNrInPins; i++)
+			kfree(namelist[i]);
 		kfree(namelist);
 		kfree(cval);
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/sound/usb/mixer_quirks.c linux-libre-5.1.21-gnu/sound/usb/mixer_quirks.c
--- linux-libre-5.1-gnu/sound/usb/mixer_quirks.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/sound/usb/mixer_quirks.c	2019-07-28 02:28:39.000000000 -0400
@@ -754,7 +754,7 @@ static int snd_ni_control_init_val(struc
 		return err;
 	}
 
-	kctl->private_value |= (value << 24);
+	kctl->private_value |= ((unsigned int)value << 24);
 	return 0;
 }
 
@@ -915,7 +915,7 @@ static int snd_ftu_eff_switch_init(struc
 	if (err < 0)
 		return err;
 
-	kctl->private_value |= value[0] << 24;
+	kctl->private_value |= (unsigned int)value[0] << 24;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/bpf/bpftool/.gitignore linux-libre-5.1.21-gnu/tools/bpf/bpftool/.gitignore
--- linux-libre-5.1-gnu/tools/bpf/bpftool/.gitignore	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/bpf/bpftool/.gitignore	2019-07-28 02:28:39.000000000 -0400
@@ -1,5 +1,5 @@
 *.d
-bpftool
+/bpftool
 bpftool*.8
 bpf-helpers.*
 FEATURE-DUMP.bpftool
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/bpf/bpftool/jit_disasm.c linux-libre-5.1.21-gnu/tools/bpf/bpftool/jit_disasm.c
--- linux-libre-5.1-gnu/tools/bpf/bpftool/jit_disasm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/bpf/bpftool/jit_disasm.c	2019-07-28 02:28:39.000000000 -0400
@@ -11,6 +11,8 @@
  * Licensed under the GNU General Public License, version 2.0 (GPLv2)
  */
 
+#define _GNU_SOURCE
+#include <stdio.h>
 #include <stdarg.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -44,11 +46,13 @@ static int fprintf_json(void *out, const
 	char *s;
 
 	va_start(ap, fmt);
+	if (vasprintf(&s, fmt, ap) < 0)
+		return -1;
+	va_end(ap);
+
 	if (!oper_count) {
 		int i;
 
-		s = va_arg(ap, char *);
-
 		/* Strip trailing spaces */
 		i = strlen(s) - 1;
 		while (s[i] == ' ')
@@ -61,11 +65,10 @@ static int fprintf_json(void *out, const
 	} else if (!strcmp(fmt, ",")) {
 		   /* Skip */
 	} else {
-		s = va_arg(ap, char *);
 		jsonw_string(json_wtr, s);
 		oper_count++;
 	}
-	va_end(ap);
+	free(s);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/bpf/bpftool/map.c linux-libre-5.1.21-gnu/tools/bpf/bpftool/map.c
--- linux-libre-5.1-gnu/tools/bpf/bpftool/map.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/bpf/bpftool/map.c	2019-07-28 02:28:39.000000000 -0400
@@ -713,12 +713,14 @@ static int dump_map_elem(int fd, void *k
 		return 0;
 
 	if (json_output) {
+		jsonw_start_object(json_wtr);
 		jsonw_name(json_wtr, "key");
 		print_hex_data_json(key, map_info->key_size);
 		jsonw_name(json_wtr, "value");
 		jsonw_start_object(json_wtr);
 		jsonw_string_field(json_wtr, "error", strerror(lookup_errno));
 		jsonw_end_object(json_wtr);
+		jsonw_end_object(json_wtr);
 	} else {
 		if (errno == ENOENT)
 			print_entry_plain(map_info, key, NULL);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/bpf/bpftool/prog.c linux-libre-5.1.21-gnu/tools/bpf/bpftool/prog.c
--- linux-libre-5.1-gnu/tools/bpf/bpftool/prog.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/bpf/bpftool/prog.c	2019-07-28 02:28:39.000000000 -0400
@@ -873,6 +873,8 @@ static int load_with_options(int argc, c
 		}
 	}
 
+	set_max_rlimit();
+
 	obj = __bpf_object__open_xattr(&attr, bpf_flags);
 	if (IS_ERR_OR_NULL(obj)) {
 		p_err("failed to open object file");
@@ -952,8 +954,6 @@ static int load_with_options(int argc, c
 		goto err_close_obj;
 	}
 
-	set_max_rlimit();
-
 	err = bpf_object__load(obj);
 	if (err) {
 		p_err("failed to load object file");
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/include/uapi/linux/bpf.h linux-libre-5.1.21-gnu/tools/include/uapi/linux/bpf.h
--- linux-libre-5.1-gnu/tools/include/uapi/linux/bpf.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/include/uapi/linux/bpf.h	2019-07-28 02:28:39.000000000 -0400
@@ -2869,6 +2869,7 @@ struct bpf_prog_info {
 	char name[BPF_OBJ_NAME_LEN];
 	__u32 ifindex;
 	__u32 gpl_compatible:1;
+	__u32 :31; /* alignment pad */
 	__u64 netns_dev;
 	__u64 netns_ino;
 	__u32 nr_jited_ksyms;
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/io_uring/Makefile linux-libre-5.1.21-gnu/tools/io_uring/Makefile
--- linux-libre-5.1-gnu/tools/io_uring/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/io_uring/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -8,7 +8,7 @@ all: io_uring-cp io_uring-bench
 	$(CC) $(CFLAGS) -o $@ $^
 
 io_uring-bench: syscall.o io_uring-bench.o
-	$(CC) $(CFLAGS) $(LDLIBS) -o $@ $^
+	$(CC) $(CFLAGS) -o $@ $^ $(LDLIBS)
 
 io_uring-cp: setup.o syscall.o queue.o
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/kvm/kvm_stat/kvm_stat linux-libre-5.1.21-gnu/tools/kvm/kvm_stat/kvm_stat
--- linux-libre-5.1-gnu/tools/kvm/kvm_stat/kvm_stat	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/kvm/kvm_stat/kvm_stat	2019-07-28 02:28:39.000000000 -0400
@@ -575,8 +575,12 @@ class TracepointProvider(Provider):
     def update_fields(self, fields_filter):
         """Refresh fields, applying fields_filter"""
         self.fields = [field for field in self._get_available_fields()
-                       if self.is_field_wanted(fields_filter, field) or
-                       ARCH.tracepoint_is_child(field)]
+                       if self.is_field_wanted(fields_filter, field)]
+        # add parents for child fields - otherwise we won't see any output!
+        for field in self._fields:
+            parent = ARCH.tracepoint_is_child(field)
+            if (parent and parent not in self._fields):
+                self.fields.append(parent)
 
     @staticmethod
     def _get_online_cpus():
@@ -735,8 +739,12 @@ class DebugfsProvider(Provider):
     def update_fields(self, fields_filter):
         """Refresh fields, applying fields_filter"""
         self._fields = [field for field in self._get_available_fields()
-                        if self.is_field_wanted(fields_filter, field) or
-                        ARCH.debugfs_is_child(field)]
+                        if self.is_field_wanted(fields_filter, field)]
+        # add parents for child fields - otherwise we won't see any output!
+        for field in self._fields:
+            parent = ARCH.debugfs_is_child(field)
+            if (parent and parent not in self._fields):
+                self.fields.append(parent)
 
     @property
     def fields(self):
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/kvm/kvm_stat/kvm_stat.txt linux-libre-5.1.21-gnu/tools/kvm/kvm_stat/kvm_stat.txt
--- linux-libre-5.1-gnu/tools/kvm/kvm_stat/kvm_stat.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/kvm/kvm_stat/kvm_stat.txt	2019-07-28 02:28:39.000000000 -0400
@@ -34,6 +34,8 @@ INTERACTIVE COMMANDS
 *c*::	clear filter
 
 *f*::	filter by regular expression
+ ::     *Note*: Child events pull in their parents, and parents' stats summarize
+                all child events, not just the filtered ones
 
 *g*::	filter by guest name/PID
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/lib/bpf/bpf.c linux-libre-5.1.21-gnu/tools/lib/bpf/bpf.c
--- linux-libre-5.1-gnu/tools/lib/bpf/bpf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/lib/bpf/bpf.c	2019-07-28 02:28:39.000000000 -0400
@@ -46,6 +46,8 @@
 #  define __NR_bpf 349
 # elif defined(__s390__)
 #  define __NR_bpf 351
+# elif defined(__arc__)
+#  define __NR_bpf 280
 # else
 #  error __NR_bpf not defined. libbpf does not support your arch.
 # endif
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/lib/bpf/bpf.h linux-libre-5.1.21-gnu/tools/lib/bpf/bpf.h
--- linux-libre-5.1-gnu/tools/lib/bpf/bpf.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/lib/bpf/bpf.h	2019-07-28 02:28:39.000000000 -0400
@@ -26,6 +26,7 @@
 #include <linux/bpf.h>
 #include <stdbool.h>
 #include <stddef.h>
+#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/lib/bpf/libbpf.c linux-libre-5.1.21-gnu/tools/lib/bpf/libbpf.c
--- linux-libre-5.1-gnu/tools/lib/bpf/libbpf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/lib/bpf/libbpf.c	2019-07-28 02:28:39.000000000 -0400
@@ -2897,10 +2897,7 @@ int bpf_prog_load(const char *file, enum
 int bpf_prog_load_xattr(const struct bpf_prog_load_attr *attr,
 			struct bpf_object **pobj, int *prog_fd)
 {
-	struct bpf_object_open_attr open_attr = {
-		.file		= attr->file,
-		.prog_type	= attr->prog_type,
-	};
+	struct bpf_object_open_attr open_attr = {};
 	struct bpf_program *prog, *first_prog = NULL;
 	enum bpf_attach_type expected_attach_type;
 	enum bpf_prog_type prog_type;
@@ -2913,6 +2910,9 @@ int bpf_prog_load_xattr(const struct bpf
 	if (!attr->file)
 		return -EINVAL;
 
+	open_attr.file = attr->file;
+	open_attr.prog_type = attr->prog_type;
+
 	obj = bpf_object__open_xattr(&open_attr);
 	if (IS_ERR_OR_NULL(obj))
 		return -ENOENT;
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/lib/bpf/xsk.c linux-libre-5.1.21-gnu/tools/lib/bpf/xsk.c
--- linux-libre-5.1-gnu/tools/lib/bpf/xsk.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/lib/bpf/xsk.c	2019-07-28 02:28:39.000000000 -0400
@@ -248,8 +248,7 @@ int xsk_umem__create(struct xsk_umem **u
 	return 0;
 
 out_mmap:
-	munmap(umem->fill,
-	       off.fr.desc + umem->config.fill_size * sizeof(__u64));
+	munmap(map, off.fr.desc + umem->config.fill_size * sizeof(__u64));
 out_socket:
 	close(umem->fd);
 out_umem_alloc:
@@ -337,7 +336,8 @@ static int xsk_get_max_queues(struct xsk
 
 	channels.cmd = ETHTOOL_GCHANNELS;
 	ifr.ifr_data = (void *)&channels;
-	strncpy(ifr.ifr_name, xsk->ifname, IFNAMSIZ);
+	strncpy(ifr.ifr_name, xsk->ifname, IFNAMSIZ - 1);
+	ifr.ifr_name[IFNAMSIZ - 1] = '\0';
 	err = ioctl(fd, SIOCETHTOOL, &ifr);
 	if (err && errno != EOPNOTSUPP) {
 		ret = -errno;
@@ -523,11 +523,11 @@ int xsk_socket__create(struct xsk_socket
 		       struct xsk_ring_cons *rx, struct xsk_ring_prod *tx,
 		       const struct xsk_socket_config *usr_config)
 {
+	void *rx_map = NULL, *tx_map = NULL;
 	struct sockaddr_xdp sxdp = {};
 	struct xdp_mmap_offsets off;
 	struct xsk_socket *xsk;
 	socklen_t optlen;
-	void *map;
 	int err;
 
 	if (!umem || !xsk_ptr || !rx || !tx)
@@ -560,7 +560,8 @@ int xsk_socket__create(struct xsk_socket
 		err = -errno;
 		goto out_socket;
 	}
-	strncpy(xsk->ifname, ifname, IFNAMSIZ);
+	strncpy(xsk->ifname, ifname, IFNAMSIZ - 1);
+	xsk->ifname[IFNAMSIZ - 1] = '\0';
 
 	err = xsk_set_xdp_socket_config(&xsk->config, usr_config);
 	if (err)
@@ -593,40 +594,40 @@ int xsk_socket__create(struct xsk_socket
 	}
 
 	if (rx) {
-		map = xsk_mmap(NULL, off.rx.desc +
-			       xsk->config.rx_size * sizeof(struct xdp_desc),
-			       PROT_READ | PROT_WRITE,
-			       MAP_SHARED | MAP_POPULATE,
-			       xsk->fd, XDP_PGOFF_RX_RING);
-		if (map == MAP_FAILED) {
+		rx_map = xsk_mmap(NULL, off.rx.desc +
+				  xsk->config.rx_size * sizeof(struct xdp_desc),
+				  PROT_READ | PROT_WRITE,
+				  MAP_SHARED | MAP_POPULATE,
+				  xsk->fd, XDP_PGOFF_RX_RING);
+		if (rx_map == MAP_FAILED) {
 			err = -errno;
 			goto out_socket;
 		}
 
 		rx->mask = xsk->config.rx_size - 1;
 		rx->size = xsk->config.rx_size;
-		rx->producer = map + off.rx.producer;
-		rx->consumer = map + off.rx.consumer;
-		rx->ring = map + off.rx.desc;
+		rx->producer = rx_map + off.rx.producer;
+		rx->consumer = rx_map + off.rx.consumer;
+		rx->ring = rx_map + off.rx.desc;
 	}
 	xsk->rx = rx;
 
 	if (tx) {
-		map = xsk_mmap(NULL, off.tx.desc +
-			       xsk->config.tx_size * sizeof(struct xdp_desc),
-			       PROT_READ | PROT_WRITE,
-			       MAP_SHARED | MAP_POPULATE,
-			       xsk->fd, XDP_PGOFF_TX_RING);
-		if (map == MAP_FAILED) {
+		tx_map = xsk_mmap(NULL, off.tx.desc +
+				  xsk->config.tx_size * sizeof(struct xdp_desc),
+				  PROT_READ | PROT_WRITE,
+				  MAP_SHARED | MAP_POPULATE,
+				  xsk->fd, XDP_PGOFF_TX_RING);
+		if (tx_map == MAP_FAILED) {
 			err = -errno;
 			goto out_mmap_rx;
 		}
 
 		tx->mask = xsk->config.tx_size - 1;
 		tx->size = xsk->config.tx_size;
-		tx->producer = map + off.tx.producer;
-		tx->consumer = map + off.tx.consumer;
-		tx->ring = map + off.tx.desc;
+		tx->producer = tx_map + off.tx.producer;
+		tx->consumer = tx_map + off.tx.consumer;
+		tx->ring = tx_map + off.tx.desc;
 		tx->cached_cons = xsk->config.tx_size;
 	}
 	xsk->tx = tx;
@@ -653,13 +654,11 @@ int xsk_socket__create(struct xsk_socket
 
 out_mmap_tx:
 	if (tx)
-		munmap(xsk->tx,
-		       off.tx.desc +
+		munmap(tx_map, off.tx.desc +
 		       xsk->config.tx_size * sizeof(struct xdp_desc));
 out_mmap_rx:
 	if (rx)
-		munmap(xsk->rx,
-		       off.rx.desc +
+		munmap(rx_map, off.rx.desc +
 		       xsk->config.rx_size * sizeof(struct xdp_desc));
 out_socket:
 	if (--umem->refcount)
@@ -684,10 +683,12 @@ int xsk_umem__delete(struct xsk_umem *um
 	optlen = sizeof(off);
 	err = getsockopt(umem->fd, SOL_XDP, XDP_MMAP_OFFSETS, &off, &optlen);
 	if (!err) {
-		munmap(umem->fill->ring,
-		       off.fr.desc + umem->config.fill_size * sizeof(__u64));
-		munmap(umem->comp->ring,
-		       off.cr.desc + umem->config.comp_size * sizeof(__u64));
+		(void)munmap(umem->fill->ring - off.fr.desc,
+			     off.fr.desc +
+			     umem->config.fill_size * sizeof(__u64));
+		(void)munmap(umem->comp->ring - off.cr.desc,
+			     off.cr.desc +
+			     umem->config.comp_size * sizeof(__u64));
 	}
 
 	close(umem->fd);
@@ -698,6 +699,7 @@ int xsk_umem__delete(struct xsk_umem *um
 
 void xsk_socket__delete(struct xsk_socket *xsk)
 {
+	size_t desc_sz = sizeof(struct xdp_desc);
 	struct xdp_mmap_offsets off;
 	socklen_t optlen;
 	int err;
@@ -710,14 +712,17 @@ void xsk_socket__delete(struct xsk_socke
 	optlen = sizeof(off);
 	err = getsockopt(xsk->fd, SOL_XDP, XDP_MMAP_OFFSETS, &off, &optlen);
 	if (!err) {
-		if (xsk->rx)
-			munmap(xsk->rx->ring,
-			       off.rx.desc +
-			       xsk->config.rx_size * sizeof(struct xdp_desc));
-		if (xsk->tx)
-			munmap(xsk->tx->ring,
-			       off.tx.desc +
-			       xsk->config.tx_size * sizeof(struct xdp_desc));
+		if (xsk->rx) {
+			(void)munmap(xsk->rx->ring - off.rx.desc,
+				     off.rx.desc +
+				     xsk->config.rx_size * desc_sz);
+		}
+		if (xsk->tx) {
+			(void)munmap(xsk->tx->ring - off.tx.desc,
+				     off.tx.desc +
+				     xsk->config.tx_size * desc_sz);
+		}
+
 	}
 
 	xsk->umem->refcount--;
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/objtool/check.c linux-libre-5.1.21-gnu/tools/objtool/check.c
--- linux-libre-5.1-gnu/tools/objtool/check.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/objtool/check.c	2019-07-28 02:28:39.000000000 -0400
@@ -28,6 +28,8 @@
 #include <linux/hashtable.h>
 #include <linux/kernel.h>
 
+#define FAKE_JUMP_OFFSET -1
+
 struct alternative {
 	struct list_head list;
 	struct instruction *insn;
@@ -501,7 +503,7 @@ static int add_jump_destinations(struct
 		    insn->type != INSN_JUMP_UNCONDITIONAL)
 			continue;
 
-		if (insn->ignore)
+		if (insn->ignore || insn->offset == FAKE_JUMP_OFFSET)
 			continue;
 
 		rela = find_rela_by_dest_range(insn->sec, insn->offset,
@@ -670,10 +672,10 @@ static int handle_group_alt(struct objto
 		clear_insn_state(&fake_jump->state);
 
 		fake_jump->sec = special_alt->new_sec;
-		fake_jump->offset = -1;
+		fake_jump->offset = FAKE_JUMP_OFFSET;
 		fake_jump->type = INSN_JUMP_UNCONDITIONAL;
 		fake_jump->jump_dest = list_next_entry(last_orig_insn, list);
-		fake_jump->ignore = true;
+		fake_jump->func = orig_insn->func;
 	}
 
 	if (!special_alt->new_len) {
@@ -1832,7 +1834,8 @@ static int validate_branch(struct objtoo
 			return 1;
 		}
 
-		func = insn->func ? insn->func->pfunc : NULL;
+		if (insn->func)
+			func = insn->func->pfunc;
 
 		if (func && insn->ignore) {
 			WARN_FUNC("BUG: why am I validating an ignored function?",
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/objtool/Makefile linux-libre-5.1.21-gnu/tools/objtool/Makefile
--- linux-libre-5.1-gnu/tools/objtool/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/objtool/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -7,11 +7,12 @@ ARCH := x86
 endif
 
 # always use the host compiler
+HOSTAR	?= ar
 HOSTCC	?= gcc
 HOSTLD	?= ld
+AR	 = $(HOSTAR)
 CC	 = $(HOSTCC)
 LD	 = $(HOSTLD)
-AR	 = ar
 
 ifeq ($(srctree),)
 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/arch/arm/util/cs-etm.c linux-libre-5.1.21-gnu/tools/perf/arch/arm/util/cs-etm.c
--- linux-libre-5.1-gnu/tools/perf/arch/arm/util/cs-etm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/arch/arm/util/cs-etm.c	2019-07-28 02:28:39.000000000 -0400
@@ -31,6 +31,8 @@ struct cs_etm_recording {
 	struct auxtrace_record	itr;
 	struct perf_pmu		*cs_etm_pmu;
 	struct perf_evlist	*evlist;
+	int			wrapped_cnt;
+	bool			*wrapped;
 	bool			snapshot_mode;
 	size_t			snapshot_size;
 };
@@ -536,16 +538,131 @@ static int cs_etm_info_fill(struct auxtr
 	return 0;
 }
 
-static int cs_etm_find_snapshot(struct auxtrace_record *itr __maybe_unused,
+static int cs_etm_alloc_wrapped_array(struct cs_etm_recording *ptr, int idx)
+{
+	bool *wrapped;
+	int cnt = ptr->wrapped_cnt;
+
+	/* Make @ptr->wrapped as big as @idx */
+	while (cnt <= idx)
+		cnt++;
+
+	/*
+	 * Free'ed in cs_etm_recording_free().  Using realloc() to avoid
+	 * cross compilation problems where the host's system supports
+	 * reallocarray() but not the target.
+	 */
+	wrapped = realloc(ptr->wrapped, cnt * sizeof(bool));
+	if (!wrapped)
+		return -ENOMEM;
+
+	wrapped[cnt - 1] = false;
+	ptr->wrapped_cnt = cnt;
+	ptr->wrapped = wrapped;
+
+	return 0;
+}
+
+static bool cs_etm_buffer_has_wrapped(unsigned char *buffer,
+				      size_t buffer_size, u64 head)
+{
+	u64 i, watermark;
+	u64 *buf = (u64 *)buffer;
+	size_t buf_size = buffer_size;
+
+	/*
+	 * We want to look the very last 512 byte (chosen arbitrarily) in
+	 * the ring buffer.
+	 */
+	watermark = buf_size - 512;
+
+	/*
+	 * @head is continuously increasing - if its value is equal or greater
+	 * than the size of the ring buffer, it has wrapped around.
+	 */
+	if (head >= buffer_size)
+		return true;
+
+	/*
+	 * The value of @head is somewhere within the size of the ring buffer.
+	 * This can be that there hasn't been enough data to fill the ring
+	 * buffer yet or the trace time was so long that @head has numerically
+	 * wrapped around.  To find we need to check if we have data at the very
+	 * end of the ring buffer.  We can reliably do this because mmap'ed
+	 * pages are zeroed out and there is a fresh mapping with every new
+	 * session.
+	 */
+
+	/* @head is less than 512 byte from the end of the ring buffer */
+	if (head > watermark)
+		watermark = head;
+
+	/*
+	 * Speed things up by using 64 bit transactions (see "u64 *buf" above)
+	 */
+	watermark >>= 3;
+	buf_size >>= 3;
+
+	/*
+	 * If we find trace data at the end of the ring buffer, @head has
+	 * been there and has numerically wrapped around at least once.
+	 */
+	for (i = watermark; i < buf_size; i++)
+		if (buf[i])
+			return true;
+
+	return false;
+}
+
+static int cs_etm_find_snapshot(struct auxtrace_record *itr,
 				int idx, struct auxtrace_mmap *mm,
-				unsigned char *data __maybe_unused,
+				unsigned char *data,
 				u64 *head, u64 *old)
 {
+	int err;
+	bool wrapped;
+	struct cs_etm_recording *ptr =
+			container_of(itr, struct cs_etm_recording, itr);
+
+	/*
+	 * Allocate memory to keep track of wrapping if this is the first
+	 * time we deal with this *mm.
+	 */
+	if (idx >= ptr->wrapped_cnt) {
+		err = cs_etm_alloc_wrapped_array(ptr, idx);
+		if (err)
+			return err;
+	}
+
+	/*
+	 * Check to see if *head has wrapped around.  If it hasn't only the
+	 * amount of data between *head and *old is snapshot'ed to avoid
+	 * bloating the perf.data file with zeros.  But as soon as *head has
+	 * wrapped around the entire size of the AUX ring buffer it taken.
+	 */
+	wrapped = ptr->wrapped[idx];
+	if (!wrapped && cs_etm_buffer_has_wrapped(data, mm->len, *head)) {
+		wrapped = true;
+		ptr->wrapped[idx] = true;
+	}
+
 	pr_debug3("%s: mmap index %d old head %zu new head %zu size %zu\n",
 		  __func__, idx, (size_t)*old, (size_t)*head, mm->len);
 
-	*old = *head;
-	*head += mm->len;
+	/* No wrap has occurred, we can just use *head and *old. */
+	if (!wrapped)
+		return 0;
+
+	/*
+	 * *head has wrapped around - adjust *head and *old to pickup the
+	 * entire content of the AUX buffer.
+	 */
+	if (*head >= mm->len) {
+		*old = *head - mm->len;
+	} else {
+		*head += mm->len;
+		*old = *head - mm->len;
+	}
 
 	return 0;
 }
@@ -586,6 +703,8 @@ static void cs_etm_recording_free(struct
 {
 	struct cs_etm_recording *ptr =
 			container_of(itr, struct cs_etm_recording, itr);
+
+	zfree(&ptr->wrapped);
 	free(ptr);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/arch/s390/util/machine.c linux-libre-5.1.21-gnu/tools/perf/arch/s390/util/machine.c
--- linux-libre-5.1-gnu/tools/perf/arch/s390/util/machine.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/arch/s390/util/machine.c	2019-07-28 02:28:39.000000000 -0400
@@ -5,16 +5,19 @@
 #include "util.h"
 #include "machine.h"
 #include "api/fs/fs.h"
+#include "debug.h"
 
 int arch__fix_module_text_start(u64 *start, const char *name)
 {
+	u64 m_start = *start;
 	char path[PATH_MAX];
 
 	snprintf(path, PATH_MAX, "module/%.*s/sections/.text",
 				(int)strlen(name) - 2, name + 1);
-
-	if (sysfs__read_ull(path, (unsigned long long *)start) < 0)
-		return -1;
+	if (sysfs__read_ull(path, (unsigned long long *)start) < 0) {
+		pr_debug2("Using module %s start:%#lx\n", path, m_start);
+		*start = m_start;
+	}
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/builtin-script.c linux-libre-5.1.21-gnu/tools/perf/builtin-script.c
--- linux-libre-5.1-gnu/tools/perf/builtin-script.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/builtin-script.c	2019-07-28 02:28:39.000000000 -0400
@@ -3669,7 +3669,8 @@ int cmd_script(int argc, const char **ar
 		goto out_delete;
 
 	uname(&uts);
-	if (!strcmp(uts.machine, session->header.env.arch) ||
+	if (data.is_pipe ||  /* assume pipe_mode indicates native_arch */
+	    !strcmp(uts.machine, session->header.env.arch) ||
 	    (!strcmp(uts.machine, "x86_64") &&
 	     !strcmp(session->header.env.arch, "i386")))
 		native_arch = true;
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/Documentation/intel-pt.txt linux-libre-5.1.21-gnu/tools/perf/Documentation/intel-pt.txt
--- linux-libre-5.1-gnu/tools/perf/Documentation/intel-pt.txt	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/Documentation/intel-pt.txt	2019-07-28 02:28:39.000000000 -0400
@@ -88,16 +88,16 @@ smaller.
 
 To represent software control flow, "branches" samples are produced.  By default
 a branch sample is synthesized for every single branch.  To get an idea what
-data is available you can use the 'perf script' tool with no parameters, which
-will list all the samples.
+data is available you can use the 'perf script' tool with all itrace sampling
+options, which will list all the samples.
 
 	perf record -e intel_pt//u ls
-	perf script
+	perf script --itrace=ibxwpe
 
 An interesting field that is not printed by default is 'flags' which can be
 displayed as follows:
 
-	perf script -Fcomm,tid,pid,time,cpu,event,trace,ip,sym,dso,addr,symoff,flags
+	perf script --itrace=ibxwpe -F+flags
 
 The flags are "bcrosyiABEx" which stand for branch, call, return, conditional,
 system, asynchronous, interrupt, transaction abort, trace begin, trace end, and
@@ -713,7 +713,7 @@ Having no option is the same as
 
 which, in turn, is the same as
 
-	--itrace=ibxwpe
+	--itrace=cepwx
 
 The letters are:
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/jvmti/libjvmti.c linux-libre-5.1.21-gnu/tools/perf/jvmti/libjvmti.c
--- linux-libre-5.1-gnu/tools/perf/jvmti/libjvmti.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/jvmti/libjvmti.c	2019-07-28 02:28:39.000000000 -0400
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
+#include <linux/string.h>
 #include <sys/types.h>
 #include <stdio.h>
 #include <string.h>
@@ -162,8 +163,7 @@ copy_class_filename(const char * class_s
 		result[i] = '\0';
 	} else {
 		/* fallback case */
-		size_t file_name_len = strlen(file_name);
-		strncpy(result, file_name, file_name_len < max_length ? file_name_len : max_length);
+		strlcpy(result, file_name, max_length);
 	}
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/perf.h linux-libre-5.1.21-gnu/tools/perf/perf.h
--- linux-libre-5.1-gnu/tools/perf/perf.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/perf.h	2019-07-28 02:28:39.000000000 -0400
@@ -26,7 +26,7 @@ static inline unsigned long long rdclock
 }
 
 #ifndef MAX_NR_CPUS
-#define MAX_NR_CPUS			1024
+#define MAX_NR_CPUS			2048
 #endif
 
 extern const char *input_name;
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/tests/parse-events.c linux-libre-5.1.21-gnu/tools/perf/tests/parse-events.c
--- linux-libre-5.1-gnu/tools/perf/tests/parse-events.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/tests/parse-events.c	2019-07-28 02:28:39.000000000 -0400
@@ -18,6 +18,32 @@
 #define PERF_TP_SAMPLE_TYPE (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | \
 			     PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD)
 
+#if defined(__s390x__)
+/* Return true if kvm module is available and loaded. Test this
+ * and retun success when trace point kvm_s390_create_vm
+ * exists. Otherwise this test always fails.
+ */
+static bool kvm_s390_create_vm_valid(void)
+{
+	char *eventfile;
+	bool rc = false;
+
+	eventfile = get_events_file("kvm-s390");
+
+	if (eventfile) {
+		DIR *mydir = opendir(eventfile);
+
+		if (mydir) {
+			rc = true;
+			closedir(mydir);
+		}
+		put_events_file(eventfile);
+	}
+
+	return rc;
+}
+#endif
+
 static int test__checkevent_tracepoint(struct perf_evlist *evlist)
 {
 	struct perf_evsel *evsel = perf_evlist__first(evlist);
@@ -1642,6 +1668,7 @@ static struct evlist_test test__events[]
 	{
 		.name  = "kvm-s390:kvm_s390_create_vm",
 		.check = test__checkevent_tracepoint,
+		.valid = kvm_s390_create_vm_valid,
 		.id    = 100,
 	},
 #endif
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/tests/shell/record+probe_libc_inet_pton.sh linux-libre-5.1.21-gnu/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
--- linux-libre-5.1-gnu/tools/perf/tests/shell/record+probe_libc_inet_pton.sh	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/tests/shell/record+probe_libc_inet_pton.sh	2019-07-28 02:28:39.000000000 -0400
@@ -44,7 +44,7 @@ trace_libc_inet_pton_backtrace() {
 		eventattr='max-stack=4'
 		echo "gaih_inet.*\+0x[[:xdigit:]]+[[:space:]]\($libc\)$" >> $expected
 		echo "getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\($libc\)$" >> $expected
-		echo ".*\+0x[[:xdigit:]]+[[:space:]]\(.*/bin/ping.*\)$" >> $expected
+		echo ".*(\+0x[[:xdigit:]]+|\[unknown\])[[:space:]]\(.*/bin/ping.*\)$" >> $expected
 		;;
 	*)
 		eventattr='max-stack=3'
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/ui/browsers/annotate.c linux-libre-5.1.21-gnu/tools/perf/ui/browsers/annotate.c
--- linux-libre-5.1-gnu/tools/perf/ui/browsers/annotate.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/ui/browsers/annotate.c	2019-07-28 02:28:39.000000000 -0400
@@ -97,11 +97,12 @@ static void annotate_browser__write(stru
 	struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
 	struct annotation *notes = browser__annotation(browser);
 	struct annotation_line *al = list_entry(entry, struct annotation_line, node);
+	const bool is_current_entry = ui_browser__is_current_entry(browser, row);
 	struct annotation_write_ops ops = {
 		.first_line		 = row == 0,
-		.current_entry		 = ui_browser__is_current_entry(browser, row),
+		.current_entry		 = is_current_entry,
 		.change_color		 = (!notes->options->hide_src_code &&
-					    (!ops.current_entry ||
+					    (!is_current_entry ||
 					     (browser->use_navkeypressed &&
 					      !browser->navkeypressed))),
 		.width			 = browser->width,
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/annotate.c linux-libre-5.1.21-gnu/tools/perf/util/annotate.c
--- linux-libre-5.1-gnu/tools/perf/util/annotate.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/annotate.c	2019-07-28 02:28:39.000000000 -0400
@@ -932,9 +932,8 @@ static int symbol__inc_addr_samples(stru
 	if (sym == NULL)
 		return 0;
 	src = symbol__hists(sym, evsel->evlist->nr_entries);
-	if (src == NULL)
-		return -ENOMEM;
-	return __symbol__inc_addr_samples(sym, map, src, evsel->idx, addr, sample);
+	return (src) ?  __symbol__inc_addr_samples(sym, map, src, evsel->idx,
+						   addr, sample) : 0;
 }
 
 static int symbol__account_cycles(u64 addr, u64 start,
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/auxtrace.c linux-libre-5.1.21-gnu/tools/perf/util/auxtrace.c
--- linux-libre-5.1-gnu/tools/perf/util/auxtrace.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/auxtrace.c	2019-07-28 02:28:39.000000000 -0400
@@ -1010,7 +1010,8 @@ int itrace_parse_synth_opts(const struct
 	}
 
 	if (!str) {
-		itrace_synth_opts__set_default(synth_opts, false);
+		itrace_synth_opts__set_default(synth_opts,
+					       synth_opts->default_no_sample);
 		return 0;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/data-convert-bt.c linux-libre-5.1.21-gnu/tools/perf/util/data-convert-bt.c
--- linux-libre-5.1-gnu/tools/perf/util/data-convert-bt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/data-convert-bt.c	2019-07-28 02:28:39.000000000 -0400
@@ -271,7 +271,7 @@ static int string_set_value(struct bt_ct
 				if (i > 0)
 					strncpy(buffer, string, i);
 			}
-			strncat(buffer + p, numstr, 4);
+			memcpy(buffer + p, numstr, 4);
 			p += 3;
 		}
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/evsel.c linux-libre-5.1.21-gnu/tools/perf/util/evsel.c
--- linux-libre-5.1-gnu/tools/perf/util/evsel.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/evsel.c	2019-07-28 02:28:39.000000000 -0400
@@ -584,6 +584,9 @@ const char *perf_evsel__name(struct perf
 {
 	char bf[128];
 
+	if (!evsel)
+		goto out_unknown;
+
 	if (evsel->name)
 		return evsel->name;
 
@@ -620,7 +623,10 @@ const char *perf_evsel__name(struct perf
 
 	evsel->name = strdup(bf);
 
-	return evsel->name ?: "unknown";
+	if (evsel->name)
+		return evsel->name;
+out_unknown:
+	return "unknown";
 }
 
 const char *perf_evsel__group_name(struct perf_evsel *evsel)
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/header.c linux-libre-5.1.21-gnu/tools/perf/util/header.c
--- linux-libre-5.1-gnu/tools/perf/util/header.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/header.c	2019-07-28 02:28:39.000000000 -0400
@@ -1100,7 +1100,7 @@ static int build_caches(struct cpu_cache
 	return 0;
 }
 
-#define MAX_CACHES 2000
+#define MAX_CACHES (MAX_NR_CPUS * 4)
 
 static int write_cache(struct feat_fd *ff,
 		       struct perf_evlist *evlist __maybe_unused)
@@ -3549,6 +3549,7 @@ int perf_event__synthesize_features(stru
 		return -ENOMEM;
 
 	ff.size = sz - sz_hdr;
+	ff.ph = &session->header;
 
 	for_each_set_bit(feat, header->adds_features, HEADER_FEAT_BITS) {
 		if (!feat_ops[feat].synthesize) {
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/intel-pt.c linux-libre-5.1.21-gnu/tools/perf/util/intel-pt.c
--- linux-libre-5.1-gnu/tools/perf/util/intel-pt.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/intel-pt.c	2019-07-28 02:28:39.000000000 -0400
@@ -2588,7 +2588,8 @@ int intel_pt_process_auxtrace_info(union
 	} else {
 		itrace_synth_opts__set_default(&pt->synth_opts,
 				session->itrace_synth_opts->default_no_sample);
-		if (use_browser != -1) {
+		if (!session->itrace_synth_opts->default_no_sample &&
+		    !session->itrace_synth_opts->inject) {
 			pt->synth_opts.branches = false;
 			pt->synth_opts.callchain = true;
 		}
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c linux-libre-5.1.21-gnu/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
--- linux-libre-5.1-gnu/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c	2019-07-28 02:28:39.000000000 -0400
@@ -58,6 +58,7 @@ enum intel_pt_pkt_state {
 	INTEL_PT_STATE_NO_IP,
 	INTEL_PT_STATE_ERR_RESYNC,
 	INTEL_PT_STATE_IN_SYNC,
+	INTEL_PT_STATE_TNT_CONT,
 	INTEL_PT_STATE_TNT,
 	INTEL_PT_STATE_TIP,
 	INTEL_PT_STATE_TIP_PGD,
@@ -72,8 +73,9 @@ static inline bool intel_pt_sample_time(
 	case INTEL_PT_STATE_NO_IP:
 	case INTEL_PT_STATE_ERR_RESYNC:
 	case INTEL_PT_STATE_IN_SYNC:
-	case INTEL_PT_STATE_TNT:
+	case INTEL_PT_STATE_TNT_CONT:
 		return true;
+	case INTEL_PT_STATE_TNT:
 	case INTEL_PT_STATE_TIP:
 	case INTEL_PT_STATE_TIP_PGD:
 	case INTEL_PT_STATE_FUP:
@@ -888,16 +890,20 @@ static uint64_t intel_pt_next_period(str
 	timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
 	masked_timestamp = timestamp & decoder->period_mask;
 	if (decoder->continuous_period) {
-		if (masked_timestamp != decoder->last_masked_timestamp)
+		if (masked_timestamp > decoder->last_masked_timestamp)
 			return 1;
 	} else {
 		timestamp += 1;
 		masked_timestamp = timestamp & decoder->period_mask;
-		if (masked_timestamp != decoder->last_masked_timestamp) {
+		if (masked_timestamp > decoder->last_masked_timestamp) {
 			decoder->last_masked_timestamp = masked_timestamp;
 			decoder->continuous_period = true;
 		}
 	}
+
+	if (masked_timestamp < decoder->last_masked_timestamp)
+		return decoder->period_ticks;
+
 	return decoder->period_ticks - (timestamp - masked_timestamp);
 }
 
@@ -926,7 +932,10 @@ static void intel_pt_sample_insn(struct
 	case INTEL_PT_PERIOD_TICKS:
 		timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
 		masked_timestamp = timestamp & decoder->period_mask;
-		decoder->last_masked_timestamp = masked_timestamp;
+		if (masked_timestamp > decoder->last_masked_timestamp)
+			decoder->last_masked_timestamp = masked_timestamp;
+		else
+			decoder->last_masked_timestamp += decoder->period_ticks;
 		break;
 	case INTEL_PT_PERIOD_NONE:
 	case INTEL_PT_PERIOD_MTC:
@@ -1254,7 +1263,9 @@ static int intel_pt_walk_tnt(struct inte
 				return -ENOENT;
 			}
 			decoder->tnt.count -= 1;
-			if (!decoder->tnt.count)
+			if (decoder->tnt.count)
+				decoder->pkt_state = INTEL_PT_STATE_TNT_CONT;
+			else
 				decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
 			decoder->tnt.payload <<= 1;
 			decoder->state.from_ip = decoder->ip;
@@ -1285,7 +1296,9 @@ static int intel_pt_walk_tnt(struct inte
 
 		if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) {
 			decoder->tnt.count -= 1;
-			if (!decoder->tnt.count)
+			if (decoder->tnt.count)
+				decoder->pkt_state = INTEL_PT_STATE_TNT_CONT;
+			else
 				decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
 			if (decoder->tnt.payload & BIT63) {
 				decoder->tnt.payload <<= 1;
@@ -1305,8 +1318,11 @@ static int intel_pt_walk_tnt(struct inte
 				return 0;
 			}
 			decoder->ip += intel_pt_insn.length;
-			if (!decoder->tnt.count)
+			if (!decoder->tnt.count) {
+				decoder->sample_timestamp = decoder->timestamp;
+				decoder->sample_insn_cnt = decoder->timestamp_insn_cnt;
 				return -EAGAIN;
+			}
 			decoder->tnt.payload <<= 1;
 			continue;
 		}
@@ -2365,6 +2381,7 @@ const struct intel_pt_state *intel_pt_de
 			err = intel_pt_walk_trace(decoder);
 			break;
 		case INTEL_PT_STATE_TNT:
+		case INTEL_PT_STATE_TNT_CONT:
 			err = intel_pt_walk_tnt(decoder);
 			if (err == -EAGAIN)
 				err = intel_pt_walk_trace(decoder);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/metricgroup.c linux-libre-5.1.21-gnu/tools/perf/util/metricgroup.c
--- linux-libre-5.1-gnu/tools/perf/util/metricgroup.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/metricgroup.c	2019-07-28 02:28:39.000000000 -0400
@@ -94,26 +94,49 @@ struct egroup {
 	const char *metric_expr;
 };
 
-static struct perf_evsel *find_evsel(struct perf_evlist *perf_evlist,
-				     const char **ids,
-				     int idnum,
-				     struct perf_evsel **metric_events)
+static bool record_evsel(int *ind, struct perf_evsel **start,
+			 int idnum,
+			 struct perf_evsel **metric_events,
+			 struct perf_evsel *ev)
+{
+	metric_events[*ind] = ev;
+	if (*ind == 0)
+		*start = ev;
+	if (++*ind == idnum) {
+		metric_events[*ind] = NULL;
+		return true;
+	}
+	return false;
+}
+
+static struct perf_evsel *find_evsel_group(struct perf_evlist *perf_evlist,
+					   const char **ids,
+					   int idnum,
+					   struct perf_evsel **metric_events)
 {
 	struct perf_evsel *ev, *start = NULL;
 	int ind = 0;
 
 	evlist__for_each_entry (perf_evlist, ev) {
+		if (ev->collect_stat)
+			continue;
 		if (!strcmp(ev->name, ids[ind])) {
-			metric_events[ind] = ev;
-			if (ind == 0)
-				start = ev;
-			if (++ind == idnum) {
-				metric_events[ind] = NULL;
+			if (record_evsel(&ind, &start, idnum,
+					 metric_events, ev))
 				return start;
-			}
 		} else {
+			/*
+			 * We saw some other event that is not
+			 * in our list of events. Discard
+			 * the whole match and start again.
+			 */
 			ind = 0;
 			start = NULL;
+			if (!strcmp(ev->name, ids[ind])) {
+				if (record_evsel(&ind, &start, idnum,
+						 metric_events, ev))
+					return start;
+			}
 		}
 	}
 	/*
@@ -143,8 +166,8 @@ static int metricgroup__setup_events(str
 			ret = -ENOMEM;
 			break;
 		}
-		evsel = find_evsel(perf_evlist, eg->ids, eg->idnum,
-				   metric_events);
+		evsel = find_evsel_group(perf_evlist, eg->ids, eg->idnum,
+					 metric_events);
 		if (!evsel) {
 			pr_debug("Cannot resolve %s: %s\n",
 					eg->metric_name, eg->metric_expr);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/pmu.c linux-libre-5.1.21-gnu/tools/perf/util/pmu.c
--- linux-libre-5.1-gnu/tools/perf/util/pmu.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/pmu.c	2019-07-28 02:28:39.000000000 -0400
@@ -709,9 +709,7 @@ static void pmu_add_cpu_aliases(struct l
 {
 	int i;
 	struct pmu_events_map *map;
-	struct pmu_event *pe;
 	const char *name = pmu->name;
-	const char *pname;
 
 	map = perf_pmu__find_map(pmu);
 	if (!map)
@@ -722,28 +720,26 @@ static void pmu_add_cpu_aliases(struct l
 	 */
 	i = 0;
 	while (1) {
+		const char *cpu_name = is_arm_pmu_core(name) ? name : "cpu";
+		struct pmu_event *pe = &map->table[i++];
+		const char *pname = pe->pmu ? pe->pmu : cpu_name;
 
-		pe = &map->table[i++];
 		if (!pe->name) {
 			if (pe->metric_group || pe->metric_name)
 				continue;
 			break;
 		}
 
-		if (!is_arm_pmu_core(name)) {
-			pname = pe->pmu ? pe->pmu : "cpu";
-
-			/*
-			 * uncore alias may be from different PMU
-			 * with common prefix
-			 */
-			if (pmu_is_uncore(name) &&
-			    !strncmp(pname, name, strlen(pname)))
-				goto new_alias;
+		/*
+		 * uncore alias may be from different PMU
+		 * with common prefix
+		 */
+		if (pmu_is_uncore(name) &&
+		    !strncmp(pname, name, strlen(pname)))
+			goto new_alias;
 
-			if (strcmp(pname, name))
-				continue;
-		}
+		if (strcmp(pname, name))
+			continue;
 
 new_alias:
 		/* need type casts to override 'const' */
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/stat-display.c linux-libre-5.1.21-gnu/tools/perf/util/stat-display.c
--- linux-libre-5.1-gnu/tools/perf/util/stat-display.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/stat-display.c	2019-07-28 02:28:39.000000000 -0400
@@ -539,7 +539,8 @@ static void collect_all_aliases(struct p
 		    alias->scale != counter->scale ||
 		    alias->cgrp != counter->cgrp ||
 		    strcmp(alias->unit, counter->unit) ||
-		    perf_evsel__is_clock(alias) != perf_evsel__is_clock(counter))
+		    perf_evsel__is_clock(alias) != perf_evsel__is_clock(counter) ||
+		    !strcmp(alias->pmu_name, counter->pmu_name))
 			break;
 		alias->merged_stat = true;
 		cb(config, alias, data, false);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/stat-shadow.c linux-libre-5.1.21-gnu/tools/perf/util/stat-shadow.c
--- linux-libre-5.1-gnu/tools/perf/util/stat-shadow.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/stat-shadow.c	2019-07-28 02:28:39.000000000 -0400
@@ -303,7 +303,7 @@ static struct perf_evsel *perf_stat__fin
 	struct perf_evsel *c2;
 
 	evlist__for_each_entry (evsel_list, c2) {
-		if (!strcasecmp(c2->name, name))
+		if (!strcasecmp(c2->name, name) && !c2->collect_stat)
 			return c2;
 	}
 	return NULL;
@@ -342,7 +342,8 @@ void perf_stat__collect_metric_expr(stru
 			if (leader) {
 				/* Search in group */
 				for_each_group_member (oc, leader) {
-					if (!strcasecmp(oc->name, metric_names[i])) {
+					if (!strcasecmp(oc->name, metric_names[i]) &&
+						!oc->collect_stat) {
 						found = true;
 						break;
 					}
@@ -722,6 +723,7 @@ static void generic_metric(struct perf_s
 	double ratio;
 	int i;
 	void *ctxp = out->ctx;
+	char *n, *pn;
 
 	expr__ctx_init(&pctx);
 	expr__add_id(&pctx, name, avg);
@@ -741,7 +743,19 @@ static void generic_metric(struct perf_s
 			stats = &v->stats;
 			scale = 1.0;
 		}
-		expr__add_id(&pctx, metric_events[i]->name, avg_stats(stats)*scale);
+
+		n = strdup(metric_events[i]->name);
+		if (!n)
+			return;
+		/*
+		 * This display code with --no-merge adds [cpu] postfixes.
+		 * These are not supported by the parser. Remove everything
+		 * after the space.
+		 */
+		pn = strchr(n, ' ');
+		if (pn)
+			*pn = 0;
+		expr__add_id(&pctx, n, avg_stats(stats)*scale);
 	}
 	if (!metric_events[i]) {
 		const char *p = metric_expr;
@@ -758,6 +772,9 @@ static void generic_metric(struct perf_s
 				     (metric_name ? metric_name : name) : "", 0);
 	} else
 		print_metric(config, ctxp, NULL, NULL, "", 0);
+
+	for (i = 1; i < pctx.num_ids; i++)
+		free((void *)pctx.ids[i].name);
 }
 
 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/thread.c linux-libre-5.1.21-gnu/tools/perf/util/thread.c
--- linux-libre-5.1-gnu/tools/perf/util/thread.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/thread.c	2019-07-28 02:28:39.000000000 -0400
@@ -132,7 +132,7 @@ void thread__put(struct thread *thread)
 	}
 }
 
-struct namespaces *thread__namespaces(const struct thread *thread)
+static struct namespaces *__thread__namespaces(const struct thread *thread)
 {
 	if (list_empty(&thread->namespaces_list))
 		return NULL;
@@ -140,10 +140,21 @@ struct namespaces *thread__namespaces(co
 	return list_first_entry(&thread->namespaces_list, struct namespaces, list);
 }
 
+struct namespaces *thread__namespaces(const struct thread *thread)
+{
+	struct namespaces *ns;
+
+	down_read((struct rw_semaphore *)&thread->namespaces_lock);
+	ns = __thread__namespaces(thread);
+	up_read((struct rw_semaphore *)&thread->namespaces_lock);
+
+	return ns;
+}
+
 static int __thread__set_namespaces(struct thread *thread, u64 timestamp,
 				    struct namespaces_event *event)
 {
-	struct namespaces *new, *curr = thread__namespaces(thread);
+	struct namespaces *new, *curr = __thread__namespaces(thread);
 
 	new = namespaces__new(event);
 	if (!new)
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/perf/util/thread-stack.c linux-libre-5.1.21-gnu/tools/perf/util/thread-stack.c
--- linux-libre-5.1-gnu/tools/perf/util/thread-stack.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/perf/util/thread-stack.c	2019-07-28 02:28:39.000000000 -0400
@@ -625,6 +625,23 @@ static int thread_stack__bottom(struct t
 				     true, false);
 }
 
+static int thread_stack__pop_ks(struct thread *thread, struct thread_stack *ts,
+				struct perf_sample *sample, u64 ref)
+{
+	u64 tm = sample->time;
+	int err;
+
+	/* Return to userspace, so pop all kernel addresses */
+	while (thread_stack__in_kernel(ts)) {
+		err = thread_stack__call_return(thread, ts, --ts->cnt,
+						tm, ref, true);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 static int thread_stack__no_call_return(struct thread *thread,
 					struct thread_stack *ts,
 					struct perf_sample *sample,
@@ -905,7 +922,18 @@ int thread_stack__process(struct thread
 			ts->rstate = X86_RETPOLINE_DETECTED;
 
 	} else if (sample->flags & PERF_IP_FLAG_RETURN) {
-		if (!sample->ip || !sample->addr)
+		if (!sample->addr) {
+			u32 return_from_kernel = PERF_IP_FLAG_SYSCALLRET |
+						 PERF_IP_FLAG_INTERRUPT;
+
+			if (!(sample->flags & return_from_kernel))
+				return 0;
+
+			/* Pop kernel stack */
+			return thread_stack__pop_ks(thread, ts, sample, ref);
+		}
+
+		if (!sample->ip)
 			return 0;
 
 		/* x86 retpoline 'return' doesn't match the stack */
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/power/cpupower/utils/cpufreq-set.c linux-libre-5.1.21-gnu/tools/power/cpupower/utils/cpufreq-set.c
--- linux-libre-5.1-gnu/tools/power/cpupower/utils/cpufreq-set.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/power/cpupower/utils/cpufreq-set.c	2019-07-28 02:28:39.000000000 -0400
@@ -306,6 +306,8 @@ int cmd_freq_set(int argc, char **argv)
 				bitmask_setbit(cpus_chosen, cpus->cpu);
 				cpus = cpus->next;
 			}
+			/* Set the last cpu in related cpus list */
+			bitmask_setbit(cpus_chosen, cpus->cpu);
 			cpufreq_put_related_cpus(cpus);
 		}
 	}
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/power/x86/turbostat/Makefile linux-libre-5.1.21-gnu/tools/power/x86/turbostat/Makefile
--- linux-libre-5.1-gnu/tools/power/x86/turbostat/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/power/x86/turbostat/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -9,7 +9,7 @@ ifeq ("$(origin O)", "command line")
 endif
 
 turbostat : turbostat.c
-override CFLAGS +=	-Wall
+override CFLAGS +=	-Wall -I../../../include
 override CFLAGS +=	-DMSRHEADER='"../../../../arch/x86/include/asm/msr-index.h"'
 override CFLAGS +=	-DINTEL_FAMILY_HEADER='"../../../../arch/x86/include/asm/intel-family.h"'
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/power/x86/x86_energy_perf_policy/Makefile linux-libre-5.1.21-gnu/tools/power/x86/x86_energy_perf_policy/Makefile
--- linux-libre-5.1-gnu/tools/power/x86/x86_energy_perf_policy/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/power/x86/x86_energy_perf_policy/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -9,7 +9,7 @@ ifeq ("$(origin O)", "command line")
 endif
 
 x86_energy_perf_policy : x86_energy_perf_policy.c
-override CFLAGS +=	-Wall
+override CFLAGS +=	-Wall -I../../../include
 override CFLAGS +=	-DMSRHEADER='"../../../../arch/x86/include/asm/msr-index.h"'
 
 %: %.c
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/radix-tree/idr-test.c linux-libre-5.1.21-gnu/tools/testing/radix-tree/idr-test.c
--- linux-libre-5.1-gnu/tools/testing/radix-tree/idr-test.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/radix-tree/idr-test.c	2019-07-28 02:28:39.000000000 -0400
@@ -287,6 +287,51 @@ static void idr_align_test(struct idr *i
 	}
 }
 
+DEFINE_IDR(find_idr);
+
+static void *idr_throbber(void *arg)
+{
+	time_t start = time(NULL);
+	int id = *(int *)arg;
+
+	rcu_register_thread();
+	do {
+		idr_alloc(&find_idr, xa_mk_value(id), id, id + 1, GFP_KERNEL);
+		idr_remove(&find_idr, id);
+	} while (time(NULL) < start + 10);
+	rcu_unregister_thread();
+
+	return NULL;
+}
+
+void idr_find_test_1(int anchor_id, int throbber_id)
+{
+	pthread_t throbber;
+	time_t start = time(NULL);
+
+	pthread_create(&throbber, NULL, idr_throbber, &throbber_id);
+
+	BUG_ON(idr_alloc(&find_idr, xa_mk_value(anchor_id), anchor_id,
+				anchor_id + 1, GFP_KERNEL) != anchor_id);
+
+	do {
+		int id = 0;
+		void *entry = idr_get_next(&find_idr, &id);
+		BUG_ON(entry != xa_mk_value(id));
+	} while (time(NULL) < start + 11);
+
+	pthread_join(throbber, NULL);
+
+	idr_remove(&find_idr, anchor_id);
+	BUG_ON(!idr_is_empty(&find_idr));
+}
+
+void idr_find_test(void)
+{
+	idr_find_test_1(100000, 0);
+	idr_find_test_1(0, 100000);
+}
+
 void idr_checks(void)
 {
 	unsigned long i;
@@ -368,6 +413,7 @@ void idr_checks(void)
 	idr_u32_test(1);
 	idr_u32_test(0);
 	idr_align_test(&idr);
+	idr_find_test();
 }
 
 #define module_init(x)
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/bpf/bpf_helpers.h linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/bpf_helpers.h
--- linux-libre-5.1-gnu/tools/testing/selftests/bpf/bpf_helpers.h	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/bpf_helpers.h	2019-07-28 02:28:39.000000000 -0400
@@ -246,7 +246,7 @@ static int (*bpf_skb_change_type)(void *
 	(void *) BPF_FUNC_skb_change_type;
 static unsigned int (*bpf_get_hash_recalc)(void *ctx) =
 	(void *) BPF_FUNC_get_hash_recalc;
-static unsigned long long (*bpf_get_current_task)(void *ctx) =
+static unsigned long long (*bpf_get_current_task)(void) =
 	(void *) BPF_FUNC_get_current_task;
 static int (*bpf_skb_change_tail)(void *ctx, __u32 len, __u64 flags) =
 	(void *) BPF_FUNC_skb_change_tail;
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c
--- linux-libre-5.1-gnu/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c	2019-07-28 02:28:39.000000000 -0400
@@ -61,7 +61,7 @@ struct sr6_tlv_t {
 	unsigned char value[0];
 } BPF_PACKET_HEADER;
 
-__attribute__((always_inline)) struct ip6_srh_t *get_srh(struct __sk_buff *skb)
+static __always_inline struct ip6_srh_t *get_srh(struct __sk_buff *skb)
 {
 	void *cursor, *data_end;
 	struct ip6_srh_t *srh;
@@ -95,7 +95,7 @@ __attribute__((always_inline)) struct ip
 	return srh;
 }
 
-__attribute__((always_inline))
+static __always_inline
 int update_tlv_pad(struct __sk_buff *skb, uint32_t new_pad,
 		   uint32_t old_pad, uint32_t pad_off)
 {
@@ -125,7 +125,7 @@ int update_tlv_pad(struct __sk_buff *skb
 	return 0;
 }
 
-__attribute__((always_inline))
+static __always_inline
 int is_valid_tlv_boundary(struct __sk_buff *skb, struct ip6_srh_t *srh,
 			  uint32_t *tlv_off, uint32_t *pad_size,
 			  uint32_t *pad_off)
@@ -184,7 +184,7 @@ int is_valid_tlv_boundary(struct __sk_bu
 	return 0;
 }
 
-__attribute__((always_inline))
+static __always_inline
 int add_tlv(struct __sk_buff *skb, struct ip6_srh_t *srh, uint32_t tlv_off,
 	    struct sr6_tlv_t *itlv, uint8_t tlv_size)
 {
@@ -228,7 +228,7 @@ int add_tlv(struct __sk_buff *skb, struc
 	return update_tlv_pad(skb, new_pad, pad_size, pad_off);
 }
 
-__attribute__((always_inline))
+static __always_inline
 int delete_tlv(struct __sk_buff *skb, struct ip6_srh_t *srh,
 	       uint32_t tlv_off)
 {
@@ -266,7 +266,7 @@ int delete_tlv(struct __sk_buff *skb, st
 	return update_tlv_pad(skb, new_pad, pad_size, pad_off);
 }
 
-__attribute__((always_inline))
+static __always_inline
 int has_egr_tlv(struct __sk_buff *skb, struct ip6_srh_t *srh)
 {
 	int tlv_offset = sizeof(struct ip6_t) + sizeof(struct ip6_srh_t) +
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/bpf/test_libbpf_open.c linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/test_libbpf_open.c
--- linux-libre-5.1-gnu/tools/testing/selftests/bpf/test_libbpf_open.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/test_libbpf_open.c	2019-07-28 02:28:39.000000000 -0400
@@ -11,6 +11,8 @@ static const char *__doc__ =
 #include <bpf/libbpf.h>
 #include <getopt.h>
 
+#include "bpf_rlimit.h"
+
 static const struct option long_options[] = {
 	{"help",	no_argument,		NULL, 'h' },
 	{"debug",	no_argument,		NULL, 'D' },
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/bpf/test_lpm_map.c linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/test_lpm_map.c
--- linux-libre-5.1-gnu/tools/testing/selftests/bpf/test_lpm_map.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/test_lpm_map.c	2019-07-28 02:28:39.000000000 -0400
@@ -573,13 +573,13 @@ static void test_lpm_get_next_key(void)
 
 	/* add one more element (total two) */
 	key_p->prefixlen = 24;
-	inet_pton(AF_INET, "192.168.0.0", key_p->data);
+	inet_pton(AF_INET, "192.168.128.0", key_p->data);
 	assert(bpf_map_update_elem(map_fd, key_p, &value, 0) == 0);
 
 	memset(key_p, 0, key_size);
 	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == 0);
 	assert(key_p->prefixlen == 24 && key_p->data[0] == 192 &&
-	       key_p->data[1] == 168 && key_p->data[2] == 0);
+	       key_p->data[1] == 168 && key_p->data[2] == 128);
 
 	memset(next_key_p, 0, key_size);
 	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
@@ -592,7 +592,7 @@ static void test_lpm_get_next_key(void)
 
 	/* Add one more element (total three) */
 	key_p->prefixlen = 24;
-	inet_pton(AF_INET, "192.168.128.0", key_p->data);
+	inet_pton(AF_INET, "192.168.0.0", key_p->data);
 	assert(bpf_map_update_elem(map_fd, key_p, &value, 0) == 0);
 
 	memset(key_p, 0, key_size);
@@ -628,6 +628,41 @@ static void test_lpm_get_next_key(void)
 	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
 	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
 	       next_key_p->data[1] == 168 && next_key_p->data[2] == 1);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 128);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 16 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == -1 &&
+	       errno == ENOENT);
+
+	/* Add one more element (total five) */
+	key_p->prefixlen = 28;
+	inet_pton(AF_INET, "192.168.1.128", key_p->data);
+	assert(bpf_map_update_elem(map_fd, key_p, &value, 0) == 0);
+
+	memset(key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == 0);
+	assert(key_p->prefixlen == 24 && key_p->data[0] == 192 &&
+	       key_p->data[1] == 168 && key_p->data[2] == 0);
+
+	memset(next_key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 28 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 1 &&
+	       next_key_p->data[3] == 128);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 1);
 
 	memcpy(key_p, next_key_p, key_size);
 	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/bpf/trace_helpers.c linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/trace_helpers.c
--- linux-libre-5.1-gnu/tools/testing/selftests/bpf/trace_helpers.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/trace_helpers.c	2019-07-28 02:28:39.000000000 -0400
@@ -52,6 +52,10 @@ struct ksym *ksym_search(long key)
 	int start = 0, end = sym_cnt;
 	int result;
 
+	/* kallsyms not loaded. return NULL */
+	if (sym_cnt <= 0)
+		return NULL;
+
 	while (start < end) {
 		size_t mid = start + (end - start) / 2;
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/bpf/verifier/div_overflow.c linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/verifier/div_overflow.c
--- linux-libre-5.1-gnu/tools/testing/selftests/bpf/verifier/div_overflow.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/bpf/verifier/div_overflow.c	2019-07-28 02:28:39.000000000 -0400
@@ -29,8 +29,11 @@
 	"DIV64 overflow, check 1",
 	.insns = {
 	BPF_MOV64_IMM(BPF_REG_1, -1),
-	BPF_LD_IMM64(BPF_REG_0, LLONG_MIN),
-	BPF_ALU64_REG(BPF_DIV, BPF_REG_0, BPF_REG_1),
+	BPF_LD_IMM64(BPF_REG_2, LLONG_MIN),
+	BPF_ALU64_REG(BPF_DIV, BPF_REG_2, BPF_REG_1),
+	BPF_MOV32_IMM(BPF_REG_0, 0),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 1),
+	BPF_MOV32_IMM(BPF_REG_0, 1),
 	BPF_EXIT_INSN(),
 	},
 	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
@@ -40,8 +43,11 @@
 {
 	"DIV64 overflow, check 2",
 	.insns = {
-	BPF_LD_IMM64(BPF_REG_0, LLONG_MIN),
-	BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, -1),
+	BPF_LD_IMM64(BPF_REG_1, LLONG_MIN),
+	BPF_ALU64_IMM(BPF_DIV, BPF_REG_1, -1),
+	BPF_MOV32_IMM(BPF_REG_0, 0),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_1, 1),
+	BPF_MOV32_IMM(BPF_REG_0, 1),
 	BPF_EXIT_INSN(),
 	},
 	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/cgroup/test_core.c linux-libre-5.1.21-gnu/tools/testing/selftests/cgroup/test_core.c
--- linux-libre-5.1-gnu/tools/testing/selftests/cgroup/test_core.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/cgroup/test_core.c	2019-07-28 02:28:39.000000000 -0400
@@ -198,7 +198,7 @@ static int test_cgcore_no_internal_proce
 	char *parent = NULL, *child = NULL;
 
 	if (cg_read_strstr(root, "cgroup.controllers", "cpu") ||
-	    cg_read_strstr(root, "cgroup.subtree_control", "cpu")) {
+	    cg_write(root, "cgroup.subtree_control", "+cpu")) {
 		ret = KSFT_SKIP;
 		goto cleanup;
 	}
@@ -376,6 +376,11 @@ int main(int argc, char *argv[])
 
 	if (cg_find_unified_root(root, sizeof(root)))
 		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+		if (cg_write(root, "cgroup.subtree_control", "+memory"))
+			ksft_exit_skip("Failed to set memory controller\n");
+
 	for (i = 0; i < ARRAY_SIZE(tests); i++) {
 		switch (tests[i].fn(root)) {
 		case KSFT_PASS:
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/cgroup/test_memcontrol.c linux-libre-5.1.21-gnu/tools/testing/selftests/cgroup/test_memcontrol.c
--- linux-libre-5.1-gnu/tools/testing/selftests/cgroup/test_memcontrol.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/cgroup/test_memcontrol.c	2019-07-28 02:28:39.000000000 -0400
@@ -26,7 +26,7 @@
  */
 static int test_memcg_subtree_control(const char *root)
 {
-	char *parent, *child, *parent2, *child2;
+	char *parent, *child, *parent2 = NULL, *child2 = NULL;
 	int ret = KSFT_FAIL;
 	char buf[PAGE_SIZE];
 
@@ -34,50 +34,54 @@ static int test_memcg_subtree_control(co
 	parent = cg_name(root, "memcg_test_0");
 	child = cg_name(root, "memcg_test_0/memcg_test_1");
 	if (!parent || !child)
-		goto cleanup;
+		goto cleanup_free;
 
 	if (cg_create(parent))
-		goto cleanup;
+		goto cleanup_free;
 
 	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
-		goto cleanup;
+		goto cleanup_parent;
 
 	if (cg_create(child))
-		goto cleanup;
+		goto cleanup_parent;
 
 	if (cg_read_strstr(child, "cgroup.controllers", "memory"))
-		goto cleanup;
+		goto cleanup_child;
 
 	/* Create two nested cgroups without enabling memory controller */
 	parent2 = cg_name(root, "memcg_test_1");
 	child2 = cg_name(root, "memcg_test_1/memcg_test_1");
 	if (!parent2 || !child2)
-		goto cleanup;
+		goto cleanup_free2;
 
 	if (cg_create(parent2))
-		goto cleanup;
+		goto cleanup_free2;
 
 	if (cg_create(child2))
-		goto cleanup;
+		goto cleanup_parent2;
 
 	if (cg_read(child2, "cgroup.controllers", buf, sizeof(buf)))
-		goto cleanup;
+		goto cleanup_all;
 
 	if (!cg_read_strstr(child2, "cgroup.controllers", "memory"))
-		goto cleanup;
+		goto cleanup_all;
 
 	ret = KSFT_PASS;
 
-cleanup:
-	cg_destroy(child);
-	cg_destroy(parent);
-	free(parent);
-	free(child);
-
+cleanup_all:
 	cg_destroy(child2);
+cleanup_parent2:
 	cg_destroy(parent2);
+cleanup_free2:
 	free(parent2);
 	free(child2);
+cleanup_child:
+	cg_destroy(child);
+cleanup_parent:
+	cg_destroy(parent);
+cleanup_free:
+	free(parent);
+	free(child);
 
 	return ret;
 }
@@ -1201,6 +1205,10 @@ int main(int argc, char **argv)
 	if (cg_read_strstr(root, "cgroup.controllers", "memory"))
 		ksft_exit_skip("memory controller isn't available\n");
 
+	if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+		if (cg_write(root, "cgroup.subtree_control", "+memory"))
+			ksft_exit_skip("Failed to set memory controller\n");
+
 	for (i = 0; i < ARRAY_SIZE(tests); i++) {
 		switch (tests[i].fn(root)) {
 		case KSFT_PASS:
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/kvm/dirty_log_test.c linux-libre-5.1.21-gnu/tools/testing/selftests/kvm/dirty_log_test.c
--- linux-libre-5.1-gnu/tools/testing/selftests/kvm/dirty_log_test.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/kvm/dirty_log_test.c	2019-07-28 02:28:39.000000000 -0400
@@ -292,7 +292,7 @@ static void run_test(enum vm_guest_mode
 	 * A little more than 1G of guest page sized pages.  Cover the
 	 * case where the size is not aligned to 64 pages.
 	 */
-	guest_num_pages = (1ul << (30 - guest_page_shift)) + 3;
+	guest_num_pages = (1ul << (30 - guest_page_shift)) + 16;
 	host_page_size = getpagesize();
 	host_num_pages = (guest_num_pages * guest_page_size) / host_page_size +
 			 !!((guest_num_pages * guest_page_size) % host_page_size);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/kvm/lib/aarch64/processor.c linux-libre-5.1.21-gnu/tools/testing/selftests/kvm/lib/aarch64/processor.c
--- linux-libre-5.1-gnu/tools/testing/selftests/kvm/lib/aarch64/processor.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/kvm/lib/aarch64/processor.c	2019-07-28 02:28:39.000000000 -0400
@@ -226,7 +226,7 @@ struct kvm_vm *vm_create_default(uint32_
 	uint64_t extra_pg_pages = (extra_mem_pages / ptrs_per_4k_pte) * 2;
 	struct kvm_vm *vm;
 
-	vm = vm_create(VM_MODE_P52V48_4K, DEFAULT_GUEST_PHY_PAGES + extra_pg_pages, O_RDWR);
+	vm = vm_create(VM_MODE_P40V48_4K, DEFAULT_GUEST_PHY_PAGES + extra_pg_pages, O_RDWR);
 
 	kvm_vm_elf_load(vm, program_invocation_name, 0, 0);
 	vm_vcpu_add_default(vm, vcpuid, guest_code);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c linux-libre-5.1.21-gnu/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c
--- linux-libre-5.1-gnu/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c	2019-07-28 02:28:39.000000000 -0400
@@ -58,9 +58,8 @@ static void test_hv_cpuid(struct kvm_cpu
 		TEST_ASSERT(entry->flags == 0,
 			    ".flags field should be zero");
 
-		TEST_ASSERT(entry->padding[0] == entry->padding[1]
-			    == entry->padding[2] == 0,
-			    ".index field should be zero");
+		TEST_ASSERT(!entry->padding[0] && !entry->padding[1] &&
+			    !entry->padding[2], "padding should be zero");
 
 		/*
 		 * If needed for debug:
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/net/fib_rule_tests.sh linux-libre-5.1.21-gnu/tools/testing/selftests/net/fib_rule_tests.sh
--- linux-libre-5.1-gnu/tools/testing/selftests/net/fib_rule_tests.sh	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/net/fib_rule_tests.sh	2019-07-28 02:28:39.000000000 -0400
@@ -55,7 +55,7 @@ setup()
 
 	$IP link add dummy0 type dummy
 	$IP link set dev dummy0 up
-	$IP address add 198.51.100.1/24 dev dummy0
+	$IP address add 192.51.100.1/24 dev dummy0
 	$IP -6 address add 2001:db8:1::1/64 dev dummy0
 
 	set +e
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/net/forwarding/router_broadcast.sh linux-libre-5.1.21-gnu/tools/testing/selftests/net/forwarding/router_broadcast.sh
--- linux-libre-5.1-gnu/tools/testing/selftests/net/forwarding/router_broadcast.sh	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/net/forwarding/router_broadcast.sh	2019-07-28 02:28:39.000000000 -0400
@@ -145,16 +145,19 @@ bc_forwarding_disable()
 {
 	sysctl_set net.ipv4.conf.all.bc_forwarding 0
 	sysctl_set net.ipv4.conf.$rp1.bc_forwarding 0
+	sysctl_set net.ipv4.conf.$rp2.bc_forwarding 0
 }
 
 bc_forwarding_enable()
 {
 	sysctl_set net.ipv4.conf.all.bc_forwarding 1
 	sysctl_set net.ipv4.conf.$rp1.bc_forwarding 1
+	sysctl_set net.ipv4.conf.$rp2.bc_forwarding 1
 }
 
 bc_forwarding_restore()
 {
+	sysctl_restore net.ipv4.conf.$rp2.bc_forwarding
 	sysctl_restore net.ipv4.conf.$rp1.bc_forwarding
 	sysctl_restore net.ipv4.conf.all.bc_forwarding
 }
@@ -171,7 +174,7 @@ ping_test_from()
 	log_info "ping $dip, expected reply from $from"
 	ip vrf exec $(master_name_get $oif) \
 		$PING -I $oif $dip -c 10 -i 0.1 -w $PING_TIMEOUT -b 2>&1 \
-		| grep $from &> /dev/null
+		| grep "bytes from $from" > /dev/null
 	check_err_fail $fail $?
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/net/tls.c linux-libre-5.1.21-gnu/tools/testing/selftests/net/tls.c
--- linux-libre-5.1-gnu/tools/testing/selftests/net/tls.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/net/tls.c	2019-07-28 02:28:39.000000000 -0400
@@ -442,6 +442,21 @@ TEST_F(tls, multiple_send_single_recv)
 	EXPECT_EQ(memcmp(send_mem, recv_mem + send_len, send_len), 0);
 }
 
+TEST_F(tls, single_send_multiple_recv_non_align)
+{
+	const unsigned int total_len = 15;
+	const unsigned int recv_len = 10;
+	char recv_mem[recv_len * 2];
+	char send_mem[total_len];
+
+	EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
+	memset(recv_mem, 0, total_len);
+
+	EXPECT_EQ(recv(self->cfd, recv_mem, recv_len, 0), recv_len);
+	EXPECT_EQ(recv(self->cfd, recv_mem + recv_len, recv_len, 0), 5);
+	EXPECT_EQ(memcmp(send_mem, recv_mem, total_len), 0);
+}
+
 TEST_F(tls, recv_partial)
 {
 	char const *test_str = "test_read_partial";
@@ -575,6 +590,25 @@ TEST_F(tls, recv_peek_large_buf_mult_rec
 	EXPECT_EQ(memcmp(test_str, buf, len), 0);
 }
 
+TEST_F(tls, recv_lowat)
+{
+	char send_mem[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+	char recv_mem[20];
+	int lowat = 8;
+
+	EXPECT_EQ(send(self->fd, send_mem, 10, 0), 10);
+	EXPECT_EQ(send(self->fd, send_mem, 5, 0), 5);
+
+	memset(recv_mem, 0, 20);
+	EXPECT_EQ(setsockopt(self->cfd, SOL_SOCKET, SO_RCVLOWAT,
+			     &lowat, sizeof(lowat)), 0);
+	EXPECT_EQ(recv(self->cfd, recv_mem, 1, MSG_WAITALL), 1);
+	EXPECT_EQ(recv(self->cfd, recv_mem + 1, 6, MSG_WAITALL), 6);
+	EXPECT_EQ(recv(self->cfd, recv_mem + 7, 10, 0), 8);
+
+	EXPECT_EQ(memcmp(send_mem, recv_mem, 10), 0);
+	EXPECT_EQ(memcmp(send_mem, recv_mem + 10, 5), 0);
+}
 
 TEST_F(tls, pollin)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/net/txring_overwrite.c linux-libre-5.1.21-gnu/tools/testing/selftests/net/txring_overwrite.c
--- linux-libre-5.1-gnu/tools/testing/selftests/net/txring_overwrite.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/net/txring_overwrite.c	2019-07-28 02:28:39.000000000 -0400
@@ -113,7 +113,7 @@ static int setup_tx(char **ring)
 
 	*ring = mmap(0, req.tp_block_size * req.tp_block_nr,
 		     PROT_READ | PROT_WRITE, MAP_SHARED, fdt, 0);
-	if (!*ring)
+	if (*ring == MAP_FAILED)
 		error(1, errno, "mmap");
 
 	return fdt;
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/netfilter/nft_nat.sh linux-libre-5.1.21-gnu/tools/testing/selftests/netfilter/nft_nat.sh
--- linux-libre-5.1-gnu/tools/testing/selftests/netfilter/nft_nat.sh	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/netfilter/nft_nat.sh	2019-07-28 02:28:39.000000000 -0400
@@ -23,7 +23,11 @@ ip netns add ns0
 ip netns add ns1
 ip netns add ns2
 
-ip link add veth0 netns ns0 type veth peer name eth0 netns ns1
+ip link add veth0 netns ns0 type veth peer name eth0 netns ns1 > /dev/null 2>&1
+if [ $? -ne 0 ];then
+    echo "SKIP: No virtual ethernet pair device support in kernel"
+    exit $ksft_skip
+fi
 ip link add veth1 netns ns0 type veth peer name eth0 netns ns2
 
 ip -net ns0 link set lo up
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/pidfd/pidfd_test.c linux-libre-5.1.21-gnu/tools/testing/selftests/pidfd/pidfd_test.c
--- linux-libre-5.1-gnu/tools/testing/selftests/pidfd/pidfd_test.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/pidfd/pidfd_test.c	2019-07-28 02:28:39.000000000 -0400
@@ -16,6 +16,10 @@
 
 #include "../kselftest.h"
 
+#ifndef __NR_pidfd_send_signal
+#define __NR_pidfd_send_signal -1
+#endif
+
 static inline int sys_pidfd_send_signal(int pidfd, int sig, siginfo_t *info,
 					unsigned int flags)
 {
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/powerpc/mm/.gitignore linux-libre-5.1.21-gnu/tools/testing/selftests/powerpc/mm/.gitignore
--- linux-libre-5.1-gnu/tools/testing/selftests/powerpc/mm/.gitignore	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/powerpc/mm/.gitignore	2019-07-28 02:28:39.000000000 -0400
@@ -3,4 +3,5 @@ subpage_prot
 tempfile
 prot_sao
 segv_errors
-wild_bctr
\ No newline at end of file
+wild_bctr
+large_vm_fork_separation
\ No newline at end of file
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/powerpc/mm/large_vm_fork_separation.c linux-libre-5.1.21-gnu/tools/testing/selftests/powerpc/mm/large_vm_fork_separation.c
--- linux-libre-5.1-gnu/tools/testing/selftests/powerpc/mm/large_vm_fork_separation.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/powerpc/mm/large_vm_fork_separation.c	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2019, Michael Ellerman, IBM Corp.
+//
+// Test that allocating memory beyond the memory limit and then forking is
+// handled correctly, ie. the child is able to access the mappings beyond the
+// memory limit and the child's writes are not visible to the parent.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+
+#ifndef MAP_FIXED_NOREPLACE
+#define MAP_FIXED_NOREPLACE	MAP_FIXED	// "Should be safe" above 512TB
+#endif
+
+
+static int test(void)
+{
+	int p2c[2], c2p[2], rc, status, c, *p;
+	unsigned long page_size;
+	pid_t pid;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	SKIP_IF(page_size != 65536);
+
+	// Create a mapping at 512TB to allocate an extended_id
+	p = mmap((void *)(512ul << 40), page_size, PROT_READ | PROT_WRITE,
+		MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE, -1, 0);
+	if (p == MAP_FAILED) {
+		perror("mmap");
+		printf("Error: couldn't mmap(), confirm kernel has 4TB support?\n");
+		return 1;
+	}
+
+	printf("parent writing %p = 1\n", p);
+	*p = 1;
+
+	FAIL_IF(pipe(p2c) == -1 || pipe(c2p) == -1);
+
+	pid = fork();
+	if (pid == 0) {
+		FAIL_IF(read(p2c[0], &c, 1) != 1);
+
+		pid = getpid();
+		printf("child writing  %p = %d\n", p, pid);
+		*p = pid;
+
+		FAIL_IF(write(c2p[1], &c, 1) != 1);
+		FAIL_IF(read(p2c[0], &c, 1) != 1);
+		exit(0);
+	}
+
+	c = 0;
+	FAIL_IF(write(p2c[1], &c, 1) != 1);
+	FAIL_IF(read(c2p[0], &c, 1) != 1);
+
+	// Prevent compiler optimisation
+	barrier();
+
+	rc = 0;
+	printf("parent reading %p = %d\n", p, *p);
+	if (*p != 1) {
+		printf("Error: BUG! parent saw child's write! *p = %d\n", *p);
+		rc = 1;
+	}
+
+	FAIL_IF(write(p2c[1], &c, 1) != 1);
+	FAIL_IF(waitpid(pid, &status, 0) == -1);
+	FAIL_IF(!WIFEXITED(status) || WEXITSTATUS(status));
+
+	if (rc == 0)
+		printf("success: test completed OK\n");
+
+	return rc;
+}
+
+int main(void)
+{
+	return test_harness(test, "large_vm_fork_separation");
+}
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/powerpc/mm/Makefile linux-libre-5.1.21-gnu/tools/testing/selftests/powerpc/mm/Makefile
--- linux-libre-5.1-gnu/tools/testing/selftests/powerpc/mm/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/powerpc/mm/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -2,7 +2,8 @@
 noarg:
 	$(MAKE) -C ../
 
-TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors wild_bctr
+TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors wild_bctr \
+		  large_vm_fork_separation
 TEST_GEN_FILES := tempfile
 
 top_srcdir = ../../../../..
@@ -13,6 +14,7 @@ $(TEST_GEN_PROGS): ../harness.c
 $(OUTPUT)/prot_sao: ../utils.c
 
 $(OUTPUT)/wild_bctr: CFLAGS += -m64
+$(OUTPUT)/large_vm_fork_separation: CFLAGS += -m64
 
 $(OUTPUT)/tempfile:
 	dd if=/dev/zero of=$@ bs=64k count=1
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/seccomp/seccomp_bpf.c linux-libre-5.1.21-gnu/tools/testing/selftests/seccomp/seccomp_bpf.c
--- linux-libre-5.1-gnu/tools/testing/selftests/seccomp/seccomp_bpf.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/seccomp/seccomp_bpf.c	2019-07-28 02:28:39.000000000 -0400
@@ -3095,9 +3095,9 @@ TEST(user_notification_basic)
 
 	/* Check that we get -ENOSYS with no listener attached */
 	if (pid == 0) {
-		if (user_trap_syscall(__NR_getpid, 0) < 0)
+		if (user_trap_syscall(__NR_getppid, 0) < 0)
 			exit(1);
-		ret = syscall(__NR_getpid);
+		ret = syscall(__NR_getppid);
 		exit(ret >= 0 || errno != ENOSYS);
 	}
 
@@ -3112,12 +3112,12 @@ TEST(user_notification_basic)
 	EXPECT_EQ(seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog), 0);
 
 	/* Check that the basic notification machinery works */
-	listener = user_trap_syscall(__NR_getpid,
+	listener = user_trap_syscall(__NR_getppid,
 				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
 	ASSERT_GE(listener, 0);
 
 	/* Installing a second listener in the chain should EBUSY */
-	EXPECT_EQ(user_trap_syscall(__NR_getpid,
+	EXPECT_EQ(user_trap_syscall(__NR_getppid,
 				    SECCOMP_FILTER_FLAG_NEW_LISTENER),
 		  -1);
 	EXPECT_EQ(errno, EBUSY);
@@ -3126,7 +3126,7 @@ TEST(user_notification_basic)
 	ASSERT_GE(pid, 0);
 
 	if (pid == 0) {
-		ret = syscall(__NR_getpid);
+		ret = syscall(__NR_getppid);
 		exit(ret != USER_NOTIF_MAGIC);
 	}
 
@@ -3144,7 +3144,7 @@ TEST(user_notification_basic)
 	EXPECT_GT(poll(&pollfd, 1, -1), 0);
 	EXPECT_EQ(pollfd.revents, POLLOUT);
 
-	EXPECT_EQ(req.data.nr,  __NR_getpid);
+	EXPECT_EQ(req.data.nr,  __NR_getppid);
 
 	resp.id = req.id;
 	resp.error = 0;
@@ -3176,7 +3176,7 @@ TEST(user_notification_kill_in_middle)
 		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
 	}
 
-	listener = user_trap_syscall(__NR_getpid,
+	listener = user_trap_syscall(__NR_getppid,
 				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
 	ASSERT_GE(listener, 0);
 
@@ -3188,7 +3188,7 @@ TEST(user_notification_kill_in_middle)
 	ASSERT_GE(pid, 0);
 
 	if (pid == 0) {
-		ret = syscall(__NR_getpid);
+		ret = syscall(__NR_getppid);
 		exit(ret != USER_NOTIF_MAGIC);
 	}
 
@@ -3298,7 +3298,7 @@ TEST(user_notification_closed_listener)
 		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
 	}
 
-	listener = user_trap_syscall(__NR_getpid,
+	listener = user_trap_syscall(__NR_getppid,
 				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
 	ASSERT_GE(listener, 0);
 
@@ -3309,7 +3309,7 @@ TEST(user_notification_closed_listener)
 	ASSERT_GE(pid, 0);
 	if (pid == 0) {
 		close(listener);
-		ret = syscall(__NR_getpid);
+		ret = syscall(__NR_getppid);
 		exit(ret != -1 && errno != ENOSYS);
 	}
 
@@ -3332,14 +3332,15 @@ TEST(user_notification_child_pid_ns)
 
 	ASSERT_EQ(unshare(CLONE_NEWUSER | CLONE_NEWPID), 0);
 
-	listener = user_trap_syscall(__NR_getpid, SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	listener = user_trap_syscall(__NR_getppid,
+				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
 	ASSERT_GE(listener, 0);
 
 	pid = fork();
 	ASSERT_GE(pid, 0);
 
 	if (pid == 0)
-		exit(syscall(__NR_getpid) != USER_NOTIF_MAGIC);
+		exit(syscall(__NR_getppid) != USER_NOTIF_MAGIC);
 
 	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
 	EXPECT_EQ(req.pid, pid);
@@ -3371,7 +3372,8 @@ TEST(user_notification_sibling_pid_ns)
 		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
 	}
 
-	listener = user_trap_syscall(__NR_getpid, SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	listener = user_trap_syscall(__NR_getppid,
+				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
 	ASSERT_GE(listener, 0);
 
 	pid = fork();
@@ -3384,7 +3386,7 @@ TEST(user_notification_sibling_pid_ns)
 		ASSERT_GE(pid2, 0);
 
 		if (pid2 == 0)
-			exit(syscall(__NR_getpid) != USER_NOTIF_MAGIC);
+			exit(syscall(__NR_getppid) != USER_NOTIF_MAGIC);
 
 		EXPECT_EQ(waitpid(pid2, &status, 0), pid2);
 		EXPECT_EQ(true, WIFEXITED(status));
@@ -3393,11 +3395,11 @@ TEST(user_notification_sibling_pid_ns)
 	}
 
 	/* Create the sibling ns, and sibling in it. */
-	EXPECT_EQ(unshare(CLONE_NEWPID), 0);
-	EXPECT_EQ(errno, 0);
+	ASSERT_EQ(unshare(CLONE_NEWPID), 0);
+	ASSERT_EQ(errno, 0);
 
 	pid2 = fork();
-	EXPECT_GE(pid2, 0);
+	ASSERT_GE(pid2, 0);
 
 	if (pid2 == 0) {
 		ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
@@ -3405,7 +3407,7 @@ TEST(user_notification_sibling_pid_ns)
 		 * The pid should be 0, i.e. the task is in some namespace that
 		 * we can't "see".
 		 */
-		ASSERT_EQ(req.pid, 0);
+		EXPECT_EQ(req.pid, 0);
 
 		resp.id = req.id;
 		resp.error = 0;
@@ -3435,14 +3437,15 @@ TEST(user_notification_fault_recv)
 
 	ASSERT_EQ(unshare(CLONE_NEWUSER), 0);
 
-	listener = user_trap_syscall(__NR_getpid, SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	listener = user_trap_syscall(__NR_getppid,
+				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
 	ASSERT_GE(listener, 0);
 
 	pid = fork();
 	ASSERT_GE(pid, 0);
 
 	if (pid == 0)
-		exit(syscall(__NR_getpid) != USER_NOTIF_MAGIC);
+		exit(syscall(__NR_getppid) != USER_NOTIF_MAGIC);
 
 	/* Do a bad recv() */
 	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, NULL), -1);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/adjtick.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/adjtick.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/adjtick.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/adjtick.c	2019-07-28 02:28:39.000000000 -0400
@@ -136,6 +136,7 @@ int check_tick_adj(long tickval)
 
 	eppm = get_ppm_drift();
 	printf("%lld usec, %lld ppm", systick + (systick * eppm / MILLION), eppm);
+	fflush(stdout);
 
 	tx1.modes = 0;
 	adjtimex(&tx1);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/leapcrash.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/leapcrash.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/leapcrash.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/leapcrash.c	2019-07-28 02:28:39.000000000 -0400
@@ -101,6 +101,7 @@ int main(void)
 		}
 		clear_time_state();
 		printf(".");
+		fflush(stdout);
 	}
 	printf("[OK]\n");
 	return ksft_exit_pass();
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/mqueue-lat.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/mqueue-lat.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/mqueue-lat.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/mqueue-lat.c	2019-07-28 02:28:39.000000000 -0400
@@ -102,6 +102,7 @@ int main(int argc, char **argv)
 	int ret;
 
 	printf("Mqueue latency :                          ");
+	fflush(stdout);
 
 	ret = mqueue_lat_test();
 	if (ret < 0) {
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/nanosleep.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/nanosleep.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/nanosleep.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/nanosleep.c	2019-07-28 02:28:39.000000000 -0400
@@ -142,6 +142,7 @@ int main(int argc, char **argv)
 			continue;
 
 		printf("Nanosleep %-31s ", clockstring(clockid));
+		fflush(stdout);
 
 		length = 10;
 		while (length <= (NSEC_PER_SEC * 10)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/nsleep-lat.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/nsleep-lat.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/nsleep-lat.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/nsleep-lat.c	2019-07-28 02:28:39.000000000 -0400
@@ -155,6 +155,7 @@ int main(int argc, char **argv)
 			continue;
 
 		printf("nsleep latency %-26s ", clockstring(clockid));
+		fflush(stdout);
 
 		length = 10;
 		while (length <= (NSEC_PER_SEC * 10)) {
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/raw_skew.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/raw_skew.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/raw_skew.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/raw_skew.c	2019-07-28 02:28:39.000000000 -0400
@@ -112,6 +112,7 @@ int main(int argv, char **argc)
 		printf("WARNING: ADJ_OFFSET in progress, this will cause inaccurate results\n");
 
 	printf("Estimating clock drift: ");
+	fflush(stdout);
 	sleep(120);
 
 	get_monotonic_and_raw(&mon, &raw);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/set-tai.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/set-tai.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/set-tai.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/set-tai.c	2019-07-28 02:28:39.000000000 -0400
@@ -55,6 +55,7 @@ int main(int argc, char **argv)
 	printf("tai offset started at %i\n", ret);
 
 	printf("Checking tai offsets can be properly set: ");
+	fflush(stdout);
 	for (i = 1; i <= 60; i++) {
 		ret = set_tai(i);
 		ret = get_tai();
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/set-tz.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/set-tz.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/set-tz.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/set-tz.c	2019-07-28 02:28:39.000000000 -0400
@@ -65,6 +65,7 @@ int main(int argc, char **argv)
 	printf("tz_minuteswest started at %i, dst at %i\n", min, dst);
 
 	printf("Checking tz_minuteswest can be properly set: ");
+	fflush(stdout);
 	for (i = -15*60; i < 15*60; i += 30) {
 		ret = set_tz(i, dst);
 		ret = get_tz_min();
@@ -76,6 +77,7 @@ int main(int argc, char **argv)
 	printf("[OK]\n");
 
 	printf("Checking invalid tz_minuteswest values are caught: ");
+	fflush(stdout);
 
 	if (!set_tz(-15*60-1, dst)) {
 		printf("[FAILED] %i didn't return failure!\n", -15*60-1);
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/threadtest.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/threadtest.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/threadtest.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/threadtest.c	2019-07-28 02:28:39.000000000 -0400
@@ -163,6 +163,7 @@ int main(int argc, char **argv)
 	strftime(buf, 255, "%a, %d %b %Y %T %z", localtime(&start));
 	printf("%s\n", buf);
 	printf("Testing consistency with %i threads for %ld seconds: ", thread_count, runtime);
+	fflush(stdout);
 
 	/* spawn */
 	for (i = 0; i < thread_count; i++)
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/timers/valid-adjtimex.c linux-libre-5.1.21-gnu/tools/testing/selftests/timers/valid-adjtimex.c
--- linux-libre-5.1-gnu/tools/testing/selftests/timers/valid-adjtimex.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/timers/valid-adjtimex.c	2019-07-28 02:28:39.000000000 -0400
@@ -123,6 +123,7 @@ int validate_freq(void)
 	/* Set the leap second insert flag */
 
 	printf("Testing ADJ_FREQ... ");
+	fflush(stdout);
 	for (i = 0; i < NUM_FREQ_VALID; i++) {
 		tx.modes = ADJ_FREQUENCY;
 		tx.freq = valid_freq[i];
@@ -250,6 +251,7 @@ int set_bad_offset(long sec, long usec,
 int validate_set_offset(void)
 {
 	printf("Testing ADJ_SETOFFSET... ");
+	fflush(stdout);
 
 	/* Test valid values */
 	if (set_offset(NSEC_PER_SEC - 1, 1))
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/vm/Makefile linux-libre-5.1.21-gnu/tools/testing/selftests/vm/Makefile
--- linux-libre-5.1-gnu/tools/testing/selftests/vm/Makefile	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/vm/Makefile	2019-07-28 02:28:39.000000000 -0400
@@ -25,6 +25,8 @@ TEST_GEN_FILES += virtual_address_range
 
 TEST_PROGS := run_vmtests
 
+TEST_FILES := test_vmalloc.sh
+
 KSFT_KHDR_INSTALL := 1
 include ../lib.mk
 
diff -druNp --no-dereference linux-libre-5.1-gnu/tools/testing/selftests/vm/userfaultfd.c linux-libre-5.1.21-gnu/tools/testing/selftests/vm/userfaultfd.c
--- linux-libre-5.1-gnu/tools/testing/selftests/vm/userfaultfd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/tools/testing/selftests/vm/userfaultfd.c	2019-07-28 02:28:39.000000000 -0400
@@ -123,7 +123,7 @@ static void usage(void)
 	fprintf(stderr, "Supported <test type>: anon, hugetlb, "
 		"hugetlb_shared, shmem\n\n");
 	fprintf(stderr, "Examples:\n\n");
-	fprintf(stderr, examples);
+	fprintf(stderr, "%s", examples);
 	exit(1);
 }
 
diff -druNp --no-dereference linux-libre-5.1-gnu/virt/kvm/arm/aarch32.c linux-libre-5.1.21-gnu/virt/kvm/arm/aarch32.c
--- linux-libre-5.1-gnu/virt/kvm/arm/aarch32.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/virt/kvm/arm/aarch32.c	2019-07-28 02:28:39.000000000 -0400
@@ -26,127 +26,6 @@
 #include <asm/kvm_hyp.h>
 
 /*
- * stolen from arch/arm/kernel/opcodes.c
- *
- * condition code lookup table
- * index into the table is test code: EQ, NE, ... LT, GT, AL, NV
- *
- * bit position in short is condition code: NZCV
- */
-static const unsigned short cc_map[16] = {
-	0xF0F0,			/* EQ == Z set            */
-	0x0F0F,			/* NE                     */
-	0xCCCC,			/* CS == C set            */
-	0x3333,			/* CC                     */
-	0xFF00,			/* MI == N set            */
-	0x00FF,			/* PL                     */
-	0xAAAA,			/* VS == V set            */
-	0x5555,			/* VC                     */
-	0x0C0C,			/* HI == C set && Z clear */
-	0xF3F3,			/* LS == C clear || Z set */
-	0xAA55,			/* GE == (N==V)           */
-	0x55AA,			/* LT == (N!=V)           */
-	0x0A05,			/* GT == (!Z && (N==V))   */
-	0xF5FA,			/* LE == (Z || (N!=V))    */
-	0xFFFF,			/* AL always              */
-	0			/* NV                     */
-};
-
-/*
- * Check if a trapped instruction should have been executed or not.
- */
-bool __hyp_text kvm_condition_valid32(const struct kvm_vcpu *vcpu)
-{
-	unsigned long cpsr;
-	u32 cpsr_cond;
-	int cond;
-
-	/* Top two bits non-zero?  Unconditional. */
-	if (kvm_vcpu_get_hsr(vcpu) >> 30)
-		return true;
-
-	/* Is condition field valid? */
-	cond = kvm_vcpu_get_condition(vcpu);
-	if (cond == 0xE)
-		return true;
-
-	cpsr = *vcpu_cpsr(vcpu);
-
-	if (cond < 0) {
-		/* This can happen in Thumb mode: examine IT state. */
-		unsigned long it;
-
-		it = ((cpsr >> 8) & 0xFC) | ((cpsr >> 25) & 0x3);
-
-		/* it == 0 => unconditional. */
-		if (it == 0)
-			return true;
-
-		/* The cond for this insn works out as the top 4 bits. */
-		cond = (it >> 4);
-	}
-
-	cpsr_cond = cpsr >> 28;
-
-	if (!((cc_map[cond] >> cpsr_cond) & 1))
-		return false;
-
-	return true;
-}
-
-/**
- * adjust_itstate - adjust ITSTATE when emulating instructions in IT-block
- * @vcpu:	The VCPU pointer
- *
- * When exceptions occur while instructions are executed in Thumb IF-THEN
- * blocks, the ITSTATE field of the CPSR is not advanced (updated), so we have
- * to do this little bit of work manually. The fields map like this:
- *
- * IT[7:0] -> CPSR[26:25],CPSR[15:10]
- */
-static void __hyp_text kvm_adjust_itstate(struct kvm_vcpu *vcpu)
-{
-	unsigned long itbits, cond;
-	unsigned long cpsr = *vcpu_cpsr(vcpu);
-	bool is_arm = !(cpsr & PSR_AA32_T_BIT);
-
-	if (is_arm || !(cpsr & PSR_AA32_IT_MASK))
-		return;
-
-	cond = (cpsr & 0xe000) >> 13;
-	itbits = (cpsr & 0x1c00) >> (10 - 2);
-	itbits |= (cpsr & (0x3 << 25)) >> 25;
-
-	/* Perform ITAdvance (see page A2-52 in ARM DDI 0406C) */
-	if ((itbits & 0x7) == 0)
-		itbits = cond = 0;
-	else
-		itbits = (itbits << 1) & 0x1f;
-
-	cpsr &= ~PSR_AA32_IT_MASK;
-	cpsr |= cond << 13;
-	cpsr |= (itbits & 0x1c) << (10 - 2);
-	cpsr |= (itbits & 0x3) << 25;
-	*vcpu_cpsr(vcpu) = cpsr;
-}
-
-/**
- * kvm_skip_instr - skip a trapped instruction and proceed to the next
- * @vcpu: The vcpu pointer
- */
-void __hyp_text kvm_skip_instr32(struct kvm_vcpu *vcpu, bool is_wide_instr)
-{
-	bool is_thumb;
-
-	is_thumb = !!(*vcpu_cpsr(vcpu) & PSR_AA32_T_BIT);
-	if (is_thumb && !is_wide_instr)
-		*vcpu_pc(vcpu) += 2;
-	else
-		*vcpu_pc(vcpu) += 4;
-	kvm_adjust_itstate(vcpu);
-}
-
-/*
  * Table taken from ARMv8 ARM DDI0487B-B, table G1-10.
  */
 static const u8 return_offsets[8][2] = {
diff -druNp --no-dereference linux-libre-5.1-gnu/virt/kvm/arm/arch_timer.c linux-libre-5.1.21-gnu/virt/kvm/arm/arch_timer.c
--- linux-libre-5.1-gnu/virt/kvm/arm/arch_timer.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/virt/kvm/arm/arch_timer.c	2019-07-28 02:28:39.000000000 -0400
@@ -321,14 +321,15 @@ static void kvm_timer_update_irq(struct
 	}
 }
 
+/* Only called for a fully emulated timer */
 static void timer_emulate(struct arch_timer_context *ctx)
 {
 	bool should_fire = kvm_timer_should_fire(ctx);
 
 	trace_kvm_timer_emulate(ctx, should_fire);
 
-	if (should_fire) {
-		kvm_timer_update_irq(ctx->vcpu, true, ctx);
+	if (should_fire != ctx->irq.level) {
+		kvm_timer_update_irq(ctx->vcpu, should_fire, ctx);
 		return;
 	}
 
diff -druNp --no-dereference linux-libre-5.1-gnu/virt/kvm/arm/arm.c linux-libre-5.1.21-gnu/virt/kvm/arm/arm.c
--- linux-libre-5.1-gnu/virt/kvm/arm/arm.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/virt/kvm/arm/arm.c	2019-07-28 02:28:39.000000000 -0400
@@ -224,6 +224,9 @@ int kvm_vm_ioctl_check_extension(struct
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
 		break;
+	case KVM_CAP_MAX_VCPU_ID:
+		r = KVM_MAX_VCPU_ID;
+		break;
 	case KVM_CAP_NR_MEMSLOTS:
 		r = KVM_USER_MEM_SLOTS;
 		break;
diff -druNp --no-dereference linux-libre-5.1-gnu/virt/kvm/arm/hyp/aarch32.c linux-libre-5.1.21-gnu/virt/kvm/arm/hyp/aarch32.c
--- linux-libre-5.1-gnu/virt/kvm/arm/hyp/aarch32.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-5.1.21-gnu/virt/kvm/arm/hyp/aarch32.c	2019-07-28 02:28:39.000000000 -0400
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hyp portion of the (not much of an) Emulation layer for 32bit guests.
+ *
+ * Copyright (C) 2012,2013 - ARM Ltd
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ *
+ * based on arch/arm/kvm/emulate.c
+ * Copyright (C) 2012 - Virtual Open Systems and Columbia University
+ * Author: Christoffer Dall <c.dall@virtualopensystems.com>
+ */
+
+#include <linux/kvm_host.h>
+#include <asm/kvm_emulate.h>
+#include <asm/kvm_hyp.h>
+
+/*
+ * stolen from arch/arm/kernel/opcodes.c
+ *
+ * condition code lookup table
+ * index into the table is test code: EQ, NE, ... LT, GT, AL, NV
+ *
+ * bit position in short is condition code: NZCV
+ */
+static const unsigned short cc_map[16] = {
+	0xF0F0,			/* EQ == Z set            */
+	0x0F0F,			/* NE                     */
+	0xCCCC,			/* CS == C set            */
+	0x3333,			/* CC                     */
+	0xFF00,			/* MI == N set            */
+	0x00FF,			/* PL                     */
+	0xAAAA,			/* VS == V set            */
+	0x5555,			/* VC                     */
+	0x0C0C,			/* HI == C set && Z clear */
+	0xF3F3,			/* LS == C clear || Z set */
+	0xAA55,			/* GE == (N==V)           */
+	0x55AA,			/* LT == (N!=V)           */
+	0x0A05,			/* GT == (!Z && (N==V))   */
+	0xF5FA,			/* LE == (Z || (N!=V))    */
+	0xFFFF,			/* AL always              */
+	0			/* NV                     */
+};
+
+/*
+ * Check if a trapped instruction should have been executed or not.
+ */
+bool __hyp_text kvm_condition_valid32(const struct kvm_vcpu *vcpu)
+{
+	unsigned long cpsr;
+	u32 cpsr_cond;
+	int cond;
+
+	/* Top two bits non-zero?  Unconditional. */
+	if (kvm_vcpu_get_hsr(vcpu) >> 30)
+		return true;
+
+	/* Is condition field valid? */
+	cond = kvm_vcpu_get_condition(vcpu);
+	if (cond == 0xE)
+		return true;
+
+	cpsr = *vcpu_cpsr(vcpu);
+
+	if (cond < 0) {
+		/* This can happen in Thumb mode: examine IT state. */
+		unsigned long it;
+
+		it = ((cpsr >> 8) & 0xFC) | ((cpsr >> 25) & 0x3);
+
+		/* it == 0 => unconditional. */
+		if (it == 0)
+			return true;
+
+		/* The cond for this insn works out as the top 4 bits. */
+		cond = (it >> 4);
+	}
+
+	cpsr_cond = cpsr >> 28;
+
+	if (!((cc_map[cond] >> cpsr_cond) & 1))
+		return false;
+
+	return true;
+}
+
+/**
+ * adjust_itstate - adjust ITSTATE when emulating instructions in IT-block
+ * @vcpu:	The VCPU pointer
+ *
+ * When exceptions occur while instructions are executed in Thumb IF-THEN
+ * blocks, the ITSTATE field of the CPSR is not advanced (updated), so we have
+ * to do this little bit of work manually. The fields map like this:
+ *
+ * IT[7:0] -> CPSR[26:25],CPSR[15:10]
+ */
+static void __hyp_text kvm_adjust_itstate(struct kvm_vcpu *vcpu)
+{
+	unsigned long itbits, cond;
+	unsigned long cpsr = *vcpu_cpsr(vcpu);
+	bool is_arm = !(cpsr & PSR_AA32_T_BIT);
+
+	if (is_arm || !(cpsr & PSR_AA32_IT_MASK))
+		return;
+
+	cond = (cpsr & 0xe000) >> 13;
+	itbits = (cpsr & 0x1c00) >> (10 - 2);
+	itbits |= (cpsr & (0x3 << 25)) >> 25;
+
+	/* Perform ITAdvance (see page A2-52 in ARM DDI 0406C) */
+	if ((itbits & 0x7) == 0)
+		itbits = cond = 0;
+	else
+		itbits = (itbits << 1) & 0x1f;
+
+	cpsr &= ~PSR_AA32_IT_MASK;
+	cpsr |= cond << 13;
+	cpsr |= (itbits & 0x1c) << (10 - 2);
+	cpsr |= (itbits & 0x3) << 25;
+	*vcpu_cpsr(vcpu) = cpsr;
+}
+
+/**
+ * kvm_skip_instr - skip a trapped instruction and proceed to the next
+ * @vcpu: The vcpu pointer
+ */
+void __hyp_text kvm_skip_instr32(struct kvm_vcpu *vcpu, bool is_wide_instr)
+{
+	bool is_thumb;
+
+	is_thumb = !!(*vcpu_cpsr(vcpu) & PSR_AA32_T_BIT);
+	if (is_thumb && !is_wide_instr)
+		*vcpu_pc(vcpu) += 2;
+	else
+		*vcpu_pc(vcpu) += 4;
+	kvm_adjust_itstate(vcpu);
+}
diff -druNp --no-dereference linux-libre-5.1-gnu/virt/kvm/arm/vgic/vgic-its.c linux-libre-5.1.21-gnu/virt/kvm/arm/vgic/vgic-its.c
--- linux-libre-5.1-gnu/virt/kvm/arm/vgic/vgic-its.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/virt/kvm/arm/vgic/vgic-its.c	2019-07-28 02:28:39.000000000 -0400
@@ -1734,6 +1734,7 @@ static void vgic_its_destroy(struct kvm_
 
 	mutex_unlock(&its->its_lock);
 	kfree(its);
+	kfree(kvm_dev);/* alloc by kvm_ioctl_create_device, free by .destroy */
 }
 
 static int vgic_its_has_attr_regs(struct kvm_device *dev,
diff -druNp --no-dereference linux-libre-5.1-gnu/virt/kvm/eventfd.c linux-libre-5.1.21-gnu/virt/kvm/eventfd.c
--- linux-libre-5.1-gnu/virt/kvm/eventfd.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/virt/kvm/eventfd.c	2019-07-28 02:28:39.000000000 -0400
@@ -44,6 +44,12 @@
 
 static struct workqueue_struct *irqfd_cleanup_wq;
 
+bool __attribute__((weak))
+kvm_arch_irqfd_allowed(struct kvm *kvm, struct kvm_irqfd *args)
+{
+	return true;
+}
+
 static void
 irqfd_inject(struct work_struct *work)
 {
@@ -297,6 +303,9 @@ kvm_irqfd_assign(struct kvm *kvm, struct
 	if (!kvm_arch_intc_initialized(kvm))
 		return -EAGAIN;
 
+	if (!kvm_arch_irqfd_allowed(kvm, args))
+		return -EINVAL;
+
 	irqfd = kzalloc(sizeof(*irqfd), GFP_KERNEL_ACCOUNT);
 	if (!irqfd)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-5.1-gnu/virt/kvm/kvm_main.c linux-libre-5.1.21-gnu/virt/kvm/kvm_main.c
--- linux-libre-5.1-gnu/virt/kvm/kvm_main.c	2019-05-05 20:42:58.000000000 -0400
+++ linux-libre-5.1.21-gnu/virt/kvm/kvm_main.c	2019-07-28 02:28:39.000000000 -0400
@@ -1250,7 +1250,7 @@ int kvm_clear_dirty_log_protect(struct k
 	if (!dirty_bitmap)
 		return -ENOENT;
 
-	n = kvm_dirty_bitmap_bytes(memslot);
+	n = ALIGN(log->num_pages, BITS_PER_LONG) / 8;
 
 	if (log->first_page > memslot->npages ||
 	    log->num_pages > memslot->npages - log->first_page ||
@@ -3062,8 +3062,6 @@ static long kvm_vm_ioctl_check_extension
 	case KVM_CAP_MULTI_ADDRESS_SPACE:
 		return KVM_ADDRESS_SPACE_NUM;
 #endif
-	case KVM_CAP_MAX_VCPU_ID:
-		return KVM_MAX_VCPU_ID;
 	default:
 		break;
 	}
