diff --git a/MAINTAINERS b/MAINTAINERS
index 48a65c3..40082e4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9657,7 +9657,8 @@
 M:	Jiaxun Yang <jiaxun.yang@flygoat.com>
 L:	linux-mips@linux-mips.org
 S:	Maintained
-F:	arch/mips/loongson64/*{2e/2f}*
+F:	arch/mips/loongson64/fuloong-2e/
+F:	arch/mips/loongson64/lemote-2f/
 F:	arch/mips/include/asm/mach-loongson64/
 F:	drivers/*/*loongson2*
 F:	drivers/*/*/*loongson2*
diff --git a/Makefile b/Makefile
index 9b2df07..e8b599b 100644
--- a/Makefile
+++ b/Makefile
@@ -483,13 +483,15 @@
 ifeq ($(cc-name),clang)
 ifneq ($(CROSS_COMPILE),)
 CLANG_TARGET	:= --target=$(notdir $(CROSS_COMPILE:%-=%))
-GCC_TOOLCHAIN	:= $(realpath $(dir $(shell which $(LD)))/..)
+GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
+CLANG_PREFIX	:= --prefix=$(GCC_TOOLCHAIN_DIR)
+GCC_TOOLCHAIN	:= $(realpath $(GCC_TOOLCHAIN_DIR)/..)
 endif
 ifneq ($(GCC_TOOLCHAIN),)
 CLANG_GCC_TC	:= --gcc-toolchain=$(GCC_TOOLCHAIN)
 endif
-KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
-KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
+KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
+KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
 endif
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index b4441b0..a045f30 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -149,7 +149,7 @@
 	  Support for ARC770 core introduced with Rel 4.10 (Summer 2011)
 	  This core has a bunch of cool new features:
 	  -MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4)
-                   Shared Address Spaces (for sharing TLB entires in MMU)
+                   Shared Address Spaces (for sharing TLB entries in MMU)
 	  -Caches: New Prog Model, Region Flush
 	  -Insns: endian swap, load-locked/store-conditional, time-stamp-ctr
 
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 99cce77..644815c 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -6,33 +6,11 @@
 # published by the Free Software Foundation.
 #
 
-ifeq ($(CROSS_COMPILE),)
-ifndef CONFIG_CPU_BIG_ENDIAN
-CROSS_COMPILE := arc-linux-
-else
-CROSS_COMPILE := arceb-linux-
-endif
-endif
-
 KBUILD_DEFCONFIG := nsim_700_defconfig
 
 cflags-y	+= -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
 cflags-$(CONFIG_ISA_ARCOMPACT)	+= -mA7
-cflags-$(CONFIG_ISA_ARCV2)	+= -mcpu=archs
-
-is_700 = $(shell $(CC) -dM -E - < /dev/null | grep -q "ARC700" && echo 1 || echo 0)
-
-ifdef CONFIG_ISA_ARCOMPACT
-ifeq ($(is_700), 0)
-    $(error Toolchain not configured for ARCompact builds)
-endif
-endif
-
-ifdef CONFIG_ISA_ARCV2
-ifeq ($(is_700), 1)
-    $(error Toolchain not configured for ARCv2 builds)
-endif
-endif
+cflags-$(CONFIG_ISA_ARCV2)	+= -mcpu=hs38
 
 ifdef CONFIG_ARC_CURR_IN_REG
 # For a global register defintion, make sure it gets passed to every file
@@ -79,7 +57,7 @@
 cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= -mbig-endian
 ldflags-$(CONFIG_CPU_BIG_ENDIAN)	+= -EB
 
-LIBGCC	:= $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
+LIBGCC	= $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
 
 # Modules with short calls might break for calls into builtin-kernel
 KBUILD_CFLAGS_MODULE	+= -mlong-calls -mno-millicode
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index 4674541..8ce6e72 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -241,6 +241,26 @@
 		task_thread_info(current)->thr_ptr;
 	}
 
+
+	/*
+	 * setup usermode thread pointer #1:
+	 * when child is picked by scheduler, __switch_to() uses @c_callee to
+	 * populate usermode callee regs: this works (despite being in a kernel
+	 * function) since special return path for child @ret_from_fork()
+	 * ensures those regs are not clobbered all the way to RTIE to usermode
+	 */
+	c_callee->r25 = task_thread_info(p)->thr_ptr;
+
+#ifdef CONFIG_ARC_CURR_IN_REG
+	/*
+	 * setup usermode thread pointer #2:
+	 * however for this special use of r25 in kernel, __switch_to() sets
+	 * r25 for kernel needs and only in the final return path is usermode
+	 * r25 setup, from pt_regs->user_r25. So set that up as well
+	 */
+	c_regs->user_r25 = c_callee->r25;
+#endif
+
 	return 0;
 }
 
diff --git a/arch/arm/kernel/vmlinux.lds.h b/arch/arm/kernel/vmlinux.lds.h
index ae5fdff..8247bc1 100644
--- a/arch/arm/kernel/vmlinux.lds.h
+++ b/arch/arm/kernel/vmlinux.lds.h
@@ -49,6 +49,8 @@
 #define ARM_DISCARD							\
 		*(.ARM.exidx.exit.text)					\
 		*(.ARM.extab.exit.text)					\
+		*(.ARM.exidx.text.exit)					\
+		*(.ARM.extab.text.exit)					\
 		ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text))		\
 		ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text))		\
 		ARM_EXIT_DISCARD(EXIT_TEXT)				\
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index b2fa629..49d6046 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -13,6 +13,7 @@
 
 #include <linux/atomic.h>
 #include <linux/cpumask.h>
+#include <linux/sizes.h>
 #include <linux/threads.h>
 
 #include <asm/cachectl.h>
@@ -80,11 +81,10 @@
 
 #endif
 
-/*
- * One page above the stack is used for branch delay slot "emulation".
- * See dsemul.c for details.
- */
-#define STACK_TOP	((TASK_SIZE & PAGE_MASK) - PAGE_SIZE)
+#define VDSO_RANDOMIZE_SIZE	(TASK_IS_32BIT_ADDR ? SZ_1M : SZ_256M)
+
+extern unsigned long mips_stack_top(void);
+#define STACK_TOP		mips_stack_top()
 
 /*
  * This decides where the kernel will search for a free chunk of vm
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 8fc6989..d4f7fd4 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -32,6 +32,7 @@
 #include <linux/nmi.h>
 #include <linux/cpu.h>
 
+#include <asm/abi.h>
 #include <asm/asm.h>
 #include <asm/bootinfo.h>
 #include <asm/cpu.h>
@@ -39,6 +40,7 @@
 #include <asm/dsp.h>
 #include <asm/fpu.h>
 #include <asm/irq.h>
+#include <asm/mips-cps.h>
 #include <asm/msa.h>
 #include <asm/pgtable.h>
 #include <asm/mipsregs.h>
@@ -645,6 +647,29 @@
 	return pc;
 }
 
+unsigned long mips_stack_top(void)
+{
+	unsigned long top = TASK_SIZE & PAGE_MASK;
+
+	/* One page for branch delay slot "emulation" */
+	top -= PAGE_SIZE;
+
+	/* Space for the VDSO, data page & GIC user page */
+	top -= PAGE_ALIGN(current->thread.abi->vdso->size);
+	top -= PAGE_SIZE;
+	top -= mips_gic_present() ? PAGE_SIZE : 0;
+
+	/* Space for cache colour alignment */
+	if (cpu_has_dc_aliases)
+		top -= shm_align_mask + 1;
+
+	/* Space to randomize the VDSO base */
+	if (current->flags & PF_RANDOMIZE)
+		top -= VDSO_RANDOMIZE_SIZE;
+
+	return top;
+}
+
 /*
  * Don't forget that the stack pointer must be aligned on a 8 bytes
  * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index c71d1eb..8aaaa42 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -846,6 +846,34 @@
 	struct memblock_region *reg;
 	extern void plat_mem_setup(void);
 
+	/*
+	 * Initialize boot_command_line to an innocuous but non-empty string in
+	 * order to prevent early_init_dt_scan_chosen() from copying
+	 * CONFIG_CMDLINE into it without our knowledge. We handle
+	 * CONFIG_CMDLINE ourselves below & don't want to duplicate its
+	 * content because repeating arguments can be problematic.
+	 */
+	strlcpy(boot_command_line, " ", COMMAND_LINE_SIZE);
+
+	/* call board setup routine */
+	plat_mem_setup();
+
+	/*
+	 * Make sure all kernel memory is in the maps.  The "UP" and
+	 * "DOWN" are opposite for initdata since if it crosses over
+	 * into another memory section you don't want that to be
+	 * freed when the initdata is freed.
+	 */
+	arch_mem_addpart(PFN_DOWN(__pa_symbol(&_text)) << PAGE_SHIFT,
+			 PFN_UP(__pa_symbol(&_edata)) << PAGE_SHIFT,
+			 BOOT_MEM_RAM);
+	arch_mem_addpart(PFN_UP(__pa_symbol(&__init_begin)) << PAGE_SHIFT,
+			 PFN_DOWN(__pa_symbol(&__init_end)) << PAGE_SHIFT,
+			 BOOT_MEM_INIT_RAM);
+
+	pr_info("Determined physical RAM map:\n");
+	print_memory_map();
+
 #if defined(CONFIG_CMDLINE_BOOL) && defined(CONFIG_CMDLINE_OVERRIDE)
 	strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
 #else
@@ -873,26 +901,6 @@
 	}
 #endif
 #endif
-
-	/* call board setup routine */
-	plat_mem_setup();
-
-	/*
-	 * Make sure all kernel memory is in the maps.  The "UP" and
-	 * "DOWN" are opposite for initdata since if it crosses over
-	 * into another memory section you don't want that to be
-	 * freed when the initdata is freed.
-	 */
-	arch_mem_addpart(PFN_DOWN(__pa_symbol(&_text)) << PAGE_SHIFT,
-			 PFN_UP(__pa_symbol(&_edata)) << PAGE_SHIFT,
-			 BOOT_MEM_RAM);
-	arch_mem_addpart(PFN_UP(__pa_symbol(&__init_begin)) << PAGE_SHIFT,
-			 PFN_DOWN(__pa_symbol(&__init_end)) << PAGE_SHIFT,
-			 BOOT_MEM_INIT_RAM);
-
-	pr_info("Determined physical RAM map:\n");
-	print_memory_map();
-
 	strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
 
 	*cmdline_p = command_line;
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
index 8f845f6..48a9c6b 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -15,6 +15,7 @@
 #include <linux/ioport.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
+#include <linux/random.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/timekeeper_internal.h>
@@ -97,6 +98,21 @@
 	}
 }
 
+static unsigned long vdso_base(void)
+{
+	unsigned long base;
+
+	/* Skip the delay slot emulation page */
+	base = STACK_TOP + PAGE_SIZE;
+
+	if (current->flags & PF_RANDOMIZE) {
+		base += get_random_int() & (VDSO_RANDOMIZE_SIZE - 1);
+		base = PAGE_ALIGN(base);
+	}
+
+	return base;
+}
+
 int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 {
 	struct mips_vdso_image *image = current->thread.abi->vdso;
@@ -137,7 +153,7 @@
 	if (cpu_has_dc_aliases)
 		size += shm_align_mask + 1;
 
-	base = get_unmapped_area(NULL, 0, size, 0, 0);
+	base = get_unmapped_area(NULL, vdso_base(), size, 0, 0);
 	if (IS_ERR_VALUE(base)) {
 		ret = base;
 		goto out;
diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S
index 3a6f34e..069acec 100644
--- a/arch/mips/lib/memset.S
+++ b/arch/mips/lib/memset.S
@@ -280,9 +280,11 @@
 	 * unset_bytes = end_addr - current_addr + 1
 	 *      a2     =    t1    -      a0      + 1
 	 */
+	.set		reorder
 	PTR_SUBU	a2, t1, a0
+	PTR_ADDIU	a2, 1
 	jr		ra
-	 PTR_ADDIU	a2, 1
+	.set		noreorder
 
 	.endm
 
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 3cae916..e44a8d7 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -108,7 +108,8 @@
 void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
 void sclp_early_detect(void);
 void sclp_early_printk(const char *s);
-void __sclp_early_printk(const char *s, unsigned int len);
+void sclp_early_printk_force(const char *s);
+void __sclp_early_printk(const char *s, unsigned int len, unsigned int force);
 
 int _sclp_get_core_info(struct sclp_core_info *info);
 int sclp_core_configure(u8 core);
diff --git a/arch/s390/kernel/early_printk.c b/arch/s390/kernel/early_printk.c
index 9431784..40c1dfe 100644
--- a/arch/s390/kernel/early_printk.c
+++ b/arch/s390/kernel/early_printk.c
@@ -10,7 +10,7 @@
 
 static void sclp_early_write(struct console *con, const char *s, unsigned int len)
 {
-	__sclp_early_printk(s, len);
+	__sclp_early_printk(s, len, 0);
 }
 
 static struct console sclp_early_console = {
diff --git a/arch/s390/kernel/swsusp.S b/arch/s390/kernel/swsusp.S
index a049a7b..c1a080b 100644
--- a/arch/s390/kernel/swsusp.S
+++ b/arch/s390/kernel/swsusp.S
@@ -198,12 +198,10 @@
 
 	/* Suspend CPU not available -> panic */
 	larl	%r15,init_thread_union
-	ahi	%r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER)
+	aghi	%r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER)
+	aghi	%r15,-STACK_FRAME_OVERHEAD
 	larl	%r2,.Lpanic_string
-	lghi	%r1,0
-	sam31
-	sigp	%r1,%r0,SIGP_SET_ARCHITECTURE
-	brasl	%r14,sclp_early_printk
+	brasl	%r14,sclp_early_printk_force
 	larl	%r3,.Ldisabled_wait_31
 	lpsw	0(%r3)
 4:
diff --git a/arch/sparc/kernel/auxio_64.c b/arch/sparc/kernel/auxio_64.c
index 4e8f56c..cc42225 100644
--- a/arch/sparc/kernel/auxio_64.c
+++ b/arch/sparc/kernel/auxio_64.c
@@ -115,8 +115,8 @@
 		auxio_devtype = AUXIO_TYPE_SBUS;
 		size = 1;
 	} else {
-		printk("auxio: Unknown parent bus type [%s]\n",
-		       dp->parent->name);
+		printk("auxio: Unknown parent bus type [%pOFn]\n",
+		       dp->parent);
 		return -ENODEV;
 	}
 	auxio_register = of_ioremap(&dev->resource[0], 0, size, "auxio");
diff --git a/arch/sparc/kernel/kgdb_32.c b/arch/sparc/kernel/kgdb_32.c
index 5868fc3..639c8e5 100644
--- a/arch/sparc/kernel/kgdb_32.c
+++ b/arch/sparc/kernel/kgdb_32.c
@@ -122,7 +122,7 @@
 			linux_regs->pc = addr;
 			linux_regs->npc = addr + 4;
 		}
-		/* fallthru */
+		/* fall through */
 
 	case 'D':
 	case 'k':
diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c
index d5f7dc6..a68bbddbd 100644
--- a/arch/sparc/kernel/kgdb_64.c
+++ b/arch/sparc/kernel/kgdb_64.c
@@ -148,7 +148,7 @@
 			linux_regs->tpc = addr;
 			linux_regs->tnpc = addr + 4;
 		}
-		/* fallthru */
+		/* fall through */
 
 	case 'D':
 	case 'k':
diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c
index 92627ab..d941875 100644
--- a/arch/sparc/kernel/power.c
+++ b/arch/sparc/kernel/power.c
@@ -41,8 +41,8 @@
 
 	power_reg = of_ioremap(res, 0, 0x4, "power");
 
-	printk(KERN_INFO "%s: Control reg at %llx\n",
-	       op->dev.of_node->name, res->start);
+	printk(KERN_INFO "%pOFn: Control reg at %llx\n",
+	       op->dev.of_node, res->start);
 
 	if (has_button_interrupt(irq, op->dev.of_node)) {
 		if (request_irq(irq,
diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c
index b51cbb9..17c87d2 100644
--- a/arch/sparc/kernel/prom_32.c
+++ b/arch/sparc/kernel/prom_32.c
@@ -68,8 +68,8 @@
 		return;
 
 	regs = rprop->value;
-	sprintf(tmp_buf, "%s@%x,%x",
-		dp->name,
+	sprintf(tmp_buf, "%pOFn@%x,%x",
+		dp,
 		regs->which_io, regs->phys_addr);
 }
 
@@ -84,8 +84,8 @@
 		return;
 
 	regs = prop->value;
-	sprintf(tmp_buf, "%s@%x,%x",
-		dp->name,
+	sprintf(tmp_buf, "%pOFn@%x,%x",
+		dp,
 		regs->which_io,
 		regs->phys_addr);
 }
@@ -104,13 +104,13 @@
 	regs = prop->value;
 	devfn = (regs->phys_hi >> 8) & 0xff;
 	if (devfn & 0x07) {
-		sprintf(tmp_buf, "%s@%x,%x",
-			dp->name,
+		sprintf(tmp_buf, "%pOFn@%x,%x",
+			dp,
 			devfn >> 3,
 			devfn & 0x07);
 	} else {
-		sprintf(tmp_buf, "%s@%x",
-			dp->name,
+		sprintf(tmp_buf, "%pOFn@%x",
+			dp,
 			devfn >> 3);
 	}
 }
@@ -127,8 +127,8 @@
 
 	regs = prop->value;
 
-	sprintf(tmp_buf, "%s@%x,%x",
-		dp->name,
+	sprintf(tmp_buf, "%pOFn@%x,%x",
+		dp,
 		regs->which_io, regs->phys_addr);
 }
 
@@ -167,8 +167,8 @@
 		return;
 	device = prop->value;
 
-	sprintf(tmp_buf, "%s:%d:%d@%x,%x",
-		dp->name, *vendor, *device,
+	sprintf(tmp_buf, "%pOFn:%d:%d@%x,%x",
+		dp, *vendor, *device,
 		*intr, reg0);
 }
 
@@ -201,7 +201,7 @@
 	tmp_buf[0] = '\0';
 	__build_path_component(dp, tmp_buf);
 	if (tmp_buf[0] == '\0')
-		strcpy(tmp_buf, dp->name);
+		snprintf(tmp_buf, sizeof(tmp_buf), "%pOFn", dp);
 
 	n = prom_early_alloc(strlen(tmp_buf) + 1);
 	strcpy(n, tmp_buf);
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index baeaeed..6220411 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -82,8 +82,8 @@
 
 	regs = rprop->value;
 	if (!of_node_is_root(dp->parent)) {
-		sprintf(tmp_buf, "%s@%x,%x",
-			dp->name,
+		sprintf(tmp_buf, "%pOFn@%x,%x",
+			dp,
 			(unsigned int) (regs->phys_addr >> 32UL),
 			(unsigned int) (regs->phys_addr & 0xffffffffUL));
 		return;
@@ -97,17 +97,17 @@
 		const char *prefix = (type == 0) ? "m" : "i";
 
 		if (low_bits)
-			sprintf(tmp_buf, "%s@%s%x,%x",
-				dp->name, prefix,
+			sprintf(tmp_buf, "%pOFn@%s%x,%x",
+				dp, prefix,
 				high_bits, low_bits);
 		else
-			sprintf(tmp_buf, "%s@%s%x",
-				dp->name,
+			sprintf(tmp_buf, "%pOFn@%s%x",
+				dp,
 				prefix,
 				high_bits);
 	} else if (type == 12) {
-		sprintf(tmp_buf, "%s@%x",
-			dp->name, high_bits);
+		sprintf(tmp_buf, "%pOFn@%x",
+			dp, high_bits);
 	}
 }
 
@@ -122,8 +122,8 @@
 
 	regs = prop->value;
 	if (!of_node_is_root(dp->parent)) {
-		sprintf(tmp_buf, "%s@%x,%x",
-			dp->name,
+		sprintf(tmp_buf, "%pOFn@%x,%x",
+			dp,
 			(unsigned int) (regs->phys_addr >> 32UL),
 			(unsigned int) (regs->phys_addr & 0xffffffffUL));
 		return;
@@ -138,8 +138,8 @@
 		if (tlb_type >= cheetah)
 			mask = 0x7fffff;
 
-		sprintf(tmp_buf, "%s@%x,%x",
-			dp->name,
+		sprintf(tmp_buf, "%pOFn@%x,%x",
+			dp,
 			*(u32 *)prop->value,
 			(unsigned int) (regs->phys_addr & mask));
 	}
@@ -156,8 +156,8 @@
 		return;
 
 	regs = prop->value;
-	sprintf(tmp_buf, "%s@%x,%x",
-		dp->name,
+	sprintf(tmp_buf, "%pOFn@%x,%x",
+		dp,
 		regs->which_io,
 		regs->phys_addr);
 }
@@ -176,13 +176,13 @@
 	regs = prop->value;
 	devfn = (regs->phys_hi >> 8) & 0xff;
 	if (devfn & 0x07) {
-		sprintf(tmp_buf, "%s@%x,%x",
-			dp->name,
+		sprintf(tmp_buf, "%pOFn@%x,%x",
+			dp,
 			devfn >> 3,
 			devfn & 0x07);
 	} else {
-		sprintf(tmp_buf, "%s@%x",
-			dp->name,
+		sprintf(tmp_buf, "%pOFn@%x",
+			dp,
 			devfn >> 3);
 	}
 }
@@ -203,8 +203,8 @@
 	if (!prop)
 		return;
 
-	sprintf(tmp_buf, "%s@%x,%x",
-		dp->name,
+	sprintf(tmp_buf, "%pOFn@%x,%x",
+		dp,
 		*(u32 *) prop->value,
 		(unsigned int) (regs->phys_addr & 0xffffffffUL));
 }
@@ -221,7 +221,7 @@
 
 	regs = prop->value;
 
-	sprintf(tmp_buf, "%s@%x", dp->name, *regs);
+	sprintf(tmp_buf, "%pOFn@%x", dp, *regs);
 }
 
 /* "name@addrhi,addrlo" */
@@ -236,8 +236,8 @@
 
 	regs = prop->value;
 
-	sprintf(tmp_buf, "%s@%x,%x",
-		dp->name,
+	sprintf(tmp_buf, "%pOFn@%x,%x",
+		dp,
 		(unsigned int) (regs->phys_addr >> 32UL),
 		(unsigned int) (regs->phys_addr & 0xffffffffUL));
 }
@@ -257,8 +257,8 @@
 	/* This actually isn't right... should look at the #address-cells
 	 * property of the i2c bus node etc. etc.
 	 */
-	sprintf(tmp_buf, "%s@%x,%x",
-		dp->name, regs[0], regs[1]);
+	sprintf(tmp_buf, "%pOFn@%x,%x",
+		dp, regs[0], regs[1]);
 }
 
 /* "name@reg0[,reg1]" */
@@ -274,11 +274,11 @@
 	regs = prop->value;
 
 	if (prop->length == sizeof(u32) || regs[1] == 1) {
-		sprintf(tmp_buf, "%s@%x",
-			dp->name, regs[0]);
+		sprintf(tmp_buf, "%pOFn@%x",
+			dp, regs[0]);
 	} else {
-		sprintf(tmp_buf, "%s@%x,%x",
-			dp->name, regs[0], regs[1]);
+		sprintf(tmp_buf, "%pOFn@%x,%x",
+			dp, regs[0], regs[1]);
 	}
 }
 
@@ -295,11 +295,11 @@
 	regs = prop->value;
 
 	if (regs[2] || regs[3]) {
-		sprintf(tmp_buf, "%s@%08x%08x,%04x%08x",
-			dp->name, regs[0], regs[1], regs[2], regs[3]);
+		sprintf(tmp_buf, "%pOFn@%08x%08x,%04x%08x",
+			dp, regs[0], regs[1], regs[2], regs[3]);
 	} else {
-		sprintf(tmp_buf, "%s@%08x%08x",
-			dp->name, regs[0], regs[1]);
+		sprintf(tmp_buf, "%pOFn@%08x%08x",
+			dp, regs[0], regs[1]);
 	}
 }
 
@@ -361,7 +361,7 @@
 	tmp_buf[0] = '\0';
 	__build_path_component(dp, tmp_buf);
 	if (tmp_buf[0] == '\0')
-		strcpy(tmp_buf, dp->name);
+		snprintf(tmp_buf, sizeof(tmp_buf), "%pOFn", dp);
 
 	n = prom_early_alloc(strlen(tmp_buf) + 1);
 	strcpy(n, tmp_buf);
diff --git a/arch/sparc/kernel/viohs.c b/arch/sparc/kernel/viohs.c
index 635d67f..7db5aab 100644
--- a/arch/sparc/kernel/viohs.c
+++ b/arch/sparc/kernel/viohs.c
@@ -180,11 +180,17 @@
 		struct vio_dring_register pkt;
 		char all[sizeof(struct vio_dring_register) +
 			 (sizeof(struct ldc_trans_cookie) *
-			  dr->ncookies)];
+			  VIO_MAX_RING_COOKIES)];
 	} u;
+	size_t bytes = sizeof(struct vio_dring_register) +
+		       (sizeof(struct ldc_trans_cookie) *
+			dr->ncookies);
 	int i;
 
-	memset(&u, 0, sizeof(u));
+	if (WARN_ON(bytes > sizeof(u)))
+		return -EINVAL;
+
+	memset(&u, 0, bytes);
 	init_tag(&u.pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_DRING_REG);
 	u.pkt.dring_ident = 0;
 	u.pkt.num_descr = dr->num_entries;
@@ -206,7 +212,7 @@
 		       (unsigned long long) u.pkt.cookies[i].cookie_size);
 	}
 
-	return send_ctrl(vio, &u.pkt.tag, sizeof(u));
+	return send_ctrl(vio, &u.pkt.tag, bytes);
 }
 
 static int send_rdx(struct vio_driver_state *vio)
diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile
index dd0b5a9..dc85570 100644
--- a/arch/sparc/vdso/Makefile
+++ b/arch/sparc/vdso/Makefile
@@ -31,23 +31,21 @@
 targets += $(vdso_img_cfiles)
 targets += $(vdso_img_sodbg) $(vdso_img-y:%=vdso%.so)
 
-export CPPFLAGS_vdso.lds += -P -C
+CPPFLAGS_vdso.lds += -P -C
 
 VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
 			-Wl,--no-undefined \
 			-Wl,-z,max-page-size=8192 -Wl,-z,common-page-size=8192 \
 			$(DISABLE_LTO)
 
-$(obj)/vdso64.so.dbg: $(src)/vdso.lds $(vobjs) FORCE
+$(obj)/vdso64.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE
 	$(call if_changed,vdso)
 
 HOST_EXTRACFLAGS += -I$(srctree)/tools/include
 hostprogs-y			+= vdso2c
 
 quiet_cmd_vdso2c = VDSO2C  $@
-define cmd_vdso2c
-	$(obj)/vdso2c $< $(<:%.dbg=%) $@
-endef
+      cmd_vdso2c = $(obj)/vdso2c $< $(<:%.dbg=%) $@
 
 $(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE
 	$(call if_changed,vdso2c)
diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h
index 285eb3e..3736f6d 100644
--- a/arch/x86/kernel/cpu/intel_rdt.h
+++ b/arch/x86/kernel/cpu/intel_rdt.h
@@ -529,14 +529,14 @@
 int rdtgroup_schemata_show(struct kernfs_open_file *of,
 			   struct seq_file *s, void *v);
 bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
-			   u32 _cbm, int closid, bool exclusive);
+			   unsigned long cbm, int closid, bool exclusive);
 unsigned int rdtgroup_cbm_to_size(struct rdt_resource *r, struct rdt_domain *d,
-				  u32 cbm);
+				  unsigned long cbm);
 enum rdtgrp_mode rdtgroup_mode_by_closid(int closid);
 int rdtgroup_tasks_assigned(struct rdtgroup *r);
 int rdtgroup_locksetup_enter(struct rdtgroup *rdtgrp);
 int rdtgroup_locksetup_exit(struct rdtgroup *rdtgrp);
-bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, u32 _cbm);
+bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, unsigned long cbm);
 bool rdtgroup_pseudo_locked_in_hierarchy(struct rdt_domain *d);
 int rdt_pseudo_lock_init(void);
 void rdt_pseudo_lock_release(void);
diff --git a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
index 40f3903..f8c260d 100644
--- a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
+++ b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
@@ -797,25 +797,27 @@
 /**
  * rdtgroup_cbm_overlaps_pseudo_locked - Test if CBM or portion is pseudo-locked
  * @d: RDT domain
- * @_cbm: CBM to test
+ * @cbm: CBM to test
  *
- * @d represents a cache instance and @_cbm a capacity bitmask that is
- * considered for it. Determine if @_cbm overlaps with any existing
+ * @d represents a cache instance and @cbm a capacity bitmask that is
+ * considered for it. Determine if @cbm overlaps with any existing
  * pseudo-locked region on @d.
  *
- * Return: true if @_cbm overlaps with pseudo-locked region on @d, false
+ * @cbm is unsigned long, even if only 32 bits are used, to make the
+ * bitmap functions work correctly.
+ *
+ * Return: true if @cbm overlaps with pseudo-locked region on @d, false
  * otherwise.
  */
-bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, u32 _cbm)
+bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, unsigned long cbm)
 {
-	unsigned long *cbm = (unsigned long *)&_cbm;
-	unsigned long *cbm_b;
 	unsigned int cbm_len;
+	unsigned long cbm_b;
 
 	if (d->plr) {
 		cbm_len = d->plr->r->cache.cbm_len;
-		cbm_b = (unsigned long *)&d->plr->cbm;
-		if (bitmap_intersects(cbm, cbm_b, cbm_len))
+		cbm_b = d->plr->cbm;
+		if (bitmap_intersects(&cbm, &cbm_b, cbm_len))
 			return true;
 	}
 	return false;
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 1b8e86a..b140c68 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -975,33 +975,34 @@
  * is false then overlaps with any resource group or hardware entities
  * will be considered.
  *
+ * @cbm is unsigned long, even if only 32 bits are used, to make the
+ * bitmap functions work correctly.
+ *
  * Return: false if CBM does not overlap, true if it does.
  */
 bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
-			   u32 _cbm, int closid, bool exclusive)
+			   unsigned long cbm, int closid, bool exclusive)
 {
-	unsigned long *cbm = (unsigned long *)&_cbm;
-	unsigned long *ctrl_b;
 	enum rdtgrp_mode mode;
+	unsigned long ctrl_b;
 	u32 *ctrl;
 	int i;
 
 	/* Check for any overlap with regions used by hardware directly */
 	if (!exclusive) {
-		if (bitmap_intersects(cbm,
-				      (unsigned long *)&r->cache.shareable_bits,
-				      r->cache.cbm_len))
+		ctrl_b = r->cache.shareable_bits;
+		if (bitmap_intersects(&cbm, &ctrl_b, r->cache.cbm_len))
 			return true;
 	}
 
 	/* Check for overlap with other resource groups */
 	ctrl = d->ctrl_val;
 	for (i = 0; i < closids_supported(); i++, ctrl++) {
-		ctrl_b = (unsigned long *)ctrl;
+		ctrl_b = *ctrl;
 		mode = rdtgroup_mode_by_closid(i);
 		if (closid_allocated(i) && i != closid &&
 		    mode != RDT_MODE_PSEUDO_LOCKSETUP) {
-			if (bitmap_intersects(cbm, ctrl_b, r->cache.cbm_len)) {
+			if (bitmap_intersects(&cbm, &ctrl_b, r->cache.cbm_len)) {
 				if (exclusive) {
 					if (mode == RDT_MODE_EXCLUSIVE)
 						return true;
@@ -1138,15 +1139,18 @@
  * computed by first dividing the total cache size by the CBM length to
  * determine how many bytes each bit in the bitmask represents. The result
  * is multiplied with the number of bits set in the bitmask.
+ *
+ * @cbm is unsigned long, even if only 32 bits are used to make the
+ * bitmap functions work correctly.
  */
 unsigned int rdtgroup_cbm_to_size(struct rdt_resource *r,
-				  struct rdt_domain *d, u32 cbm)
+				  struct rdt_domain *d, unsigned long cbm)
 {
 	struct cpu_cacheinfo *ci;
 	unsigned int size = 0;
 	int num_b, i;
 
-	num_b = bitmap_weight((unsigned long *)&cbm, r->cache.cbm_len);
+	num_b = bitmap_weight(&cbm, r->cache.cbm_len);
 	ci = get_cpu_cacheinfo(cpumask_any(&d->cpu_mask));
 	for (i = 0; i < ci->num_leaves; i++) {
 		if (ci->info_list[i].level == r->cache_level) {
@@ -2353,6 +2357,7 @@
 	u32 used_b = 0, unused_b = 0;
 	u32 closid = rdtgrp->closid;
 	struct rdt_resource *r;
+	unsigned long tmp_cbm;
 	enum rdtgrp_mode mode;
 	struct rdt_domain *d;
 	int i, ret;
@@ -2390,9 +2395,14 @@
 			 * modify the CBM based on system availability.
 			 */
 			cbm_ensure_valid(&d->new_ctrl, r);
-			if (bitmap_weight((unsigned long *) &d->new_ctrl,
-					  r->cache.cbm_len) <
-					r->cache.min_cbm_bits) {
+			/*
+			 * Assign the u32 CBM to an unsigned long to ensure
+			 * that bitmap_weight() does not access out-of-bound
+			 * memory.
+			 */
+			tmp_cbm = d->new_ctrl;
+			if (bitmap_weight(&tmp_cbm, r->cache.cbm_len) <
+			    r->cache.min_cbm_bits) {
 				rdt_last_cmd_printf("no space on %s:%d\n",
 						    r->name, d->id);
 				return -ENOSPC;
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 089e78c..59274e2 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -115,6 +115,8 @@
 
 #define UNSHARED_PTRS_PER_PGD				\
 	(SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
+#define MAX_UNSHARED_PTRS_PER_PGD			\
+	max_t(size_t, KERNEL_PGD_BOUNDARY, PTRS_PER_PGD)
 
 
 static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
@@ -181,6 +183,7 @@
  * and initialize the kernel pmds here.
  */
 #define PREALLOCATED_PMDS	UNSHARED_PTRS_PER_PGD
+#define MAX_PREALLOCATED_PMDS	MAX_UNSHARED_PTRS_PER_PGD
 
 /*
  * We allocate separate PMDs for the kernel part of the user page-table
@@ -189,6 +192,7 @@
  */
 #define PREALLOCATED_USER_PMDS	 (static_cpu_has(X86_FEATURE_PTI) ? \
 					KERNEL_PGD_PTRS : 0)
+#define MAX_PREALLOCATED_USER_PMDS KERNEL_PGD_PTRS
 
 void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
 {
@@ -210,7 +214,9 @@
 
 /* No need to prepopulate any pagetable entries in non-PAE modes. */
 #define PREALLOCATED_PMDS	0
+#define MAX_PREALLOCATED_PMDS	0
 #define PREALLOCATED_USER_PMDS	 0
+#define MAX_PREALLOCATED_USER_PMDS 0
 #endif	/* CONFIG_X86_PAE */
 
 static void free_pmds(struct mm_struct *mm, pmd_t *pmds[], int count)
@@ -428,8 +434,8 @@
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {
 	pgd_t *pgd;
-	pmd_t *u_pmds[PREALLOCATED_USER_PMDS];
-	pmd_t *pmds[PREALLOCATED_PMDS];
+	pmd_t *u_pmds[MAX_PREALLOCATED_USER_PMDS];
+	pmd_t *pmds[MAX_PREALLOCATED_PMDS];
 
 	pgd = _pgd_alloc();
 
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index e182f60..2fee658 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1322,7 +1322,7 @@
 {
 	int i;
 
-	qca->vreg_bulk = devm_kzalloc(qca->dev, num_vregs *
+	qca->vreg_bulk = devm_kcalloc(qca->dev, num_vregs,
 				      sizeof(struct regulator_bulk_data),
 				      GFP_KERNEL);
 	if (!qca->vreg_bulk)
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index 7e71043..86c699c 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -1044,7 +1044,8 @@
 
 	safexcel_configure(priv);
 
-	priv->ring = devm_kzalloc(dev, priv->config.rings * sizeof(*priv->ring),
+	priv->ring = devm_kcalloc(dev, priv->config.rings,
+				  sizeof(*priv->ring),
 				  GFP_KERNEL);
 	if (!priv->ring) {
 		ret = -ENOMEM;
@@ -1063,8 +1064,9 @@
 		if (ret)
 			goto err_reg_clk;
 
-		priv->ring[i].rdr_req = devm_kzalloc(dev,
-			sizeof(priv->ring[i].rdr_req) * EIP197_DEFAULT_RING_SIZE,
+		priv->ring[i].rdr_req = devm_kcalloc(dev,
+			EIP197_DEFAULT_RING_SIZE,
+			sizeof(priv->ring[i].rdr_req),
 			GFP_KERNEL);
 		if (!priv->ring[i].rdr_req) {
 			ret = -ENOMEM;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index a57300c..2518740 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1682,7 +1682,8 @@
 		irq_set_chained_handler_and_data(parent_irq, parent_handler,
 						 gpiochip);
 
-		gpiochip->irq.parents = &parent_irq;
+		gpiochip->irq.parent_irq = parent_irq;
+		gpiochip->irq.parents = &gpiochip->irq.parent_irq;
 		gpiochip->irq.num_parents = 1;
 	}
 
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 0b976df..92ecb9b 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -600,7 +600,7 @@
 	}
 
 	mtk_crtc->layer_nr = mtk_ddp_comp_layer_nr(mtk_crtc->ddp_comp[0]);
-	mtk_crtc->planes = devm_kzalloc(dev, mtk_crtc->layer_nr *
+	mtk_crtc->planes = devm_kcalloc(dev, mtk_crtc->layer_nr,
 					sizeof(struct drm_plane),
 					GFP_KERNEL);
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c
index 790d39f..b557687 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c
@@ -153,8 +153,8 @@
 		return 0;
 	}
 
-	mp->clk_config = devm_kzalloc(&pdev->dev,
-				      sizeof(struct dss_clk) * num_clk,
+	mp->clk_config = devm_kcalloc(&pdev->dev,
+				      num_clk, sizeof(struct dss_clk),
 				      GFP_KERNEL);
 	if (!mp->clk_config)
 		return -ENOMEM;
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 5691dfa..041e7da 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -900,9 +900,22 @@
 nv50_mstc_detect(struct drm_connector *connector, bool force)
 {
 	struct nv50_mstc *mstc = nv50_mstc(connector);
+	enum drm_connector_status conn_status;
+	int ret;
+
 	if (!mstc->port)
 		return connector_status_disconnected;
-	return drm_dp_mst_detect_port(connector, mstc->port->mgr, mstc->port);
+
+	ret = pm_runtime_get_sync(connector->dev->dev);
+	if (ret < 0 && ret != -EACCES)
+		return connector_status_disconnected;
+
+	conn_status = drm_dp_mst_detect_port(connector, mstc->port->mgr,
+					     mstc->port);
+
+	pm_runtime_mark_last_busy(connector->dev->dev);
+	pm_runtime_put_autosuspend(connector->dev->dev);
+	return conn_status;
 }
 
 static void
diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c
index 8474d60..b998f9f 100644
--- a/drivers/hwmon/npcm750-pwm-fan.c
+++ b/drivers/hwmon/npcm750-pwm-fan.c
@@ -908,7 +908,7 @@
 	if (fan_cnt < 1)
 		return -EINVAL;
 
-	fan_ch = devm_kzalloc(dev, sizeof(*fan_ch) * fan_cnt, GFP_KERNEL);
+	fan_ch = devm_kcalloc(dev, fan_cnt, sizeof(*fan_ch), GFP_KERNEL);
 	if (!fan_ch)
 		return -ENOMEM;
 
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 9fb1d9c..e223148 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -544,6 +544,9 @@
 	int shrink = 0;
 	int c;
 
+	if (!mr->allocated_from_cache)
+		return;
+
 	c = order2idx(dev, mr->order);
 	if (c < 0 || c >= MAX_MR_CACHE_ENTRIES) {
 		mlx5_ib_warn(dev, "order %d, cache index %d\n", mr->order, c);
@@ -1647,18 +1650,19 @@
 		umem = NULL;
 	}
 #endif
-
 	clean_mr(dev, mr);
 
+	/*
+	 * We should unregister the DMA address from the HCA before
+	 * remove the DMA mapping.
+	 */
+	mlx5_mr_cache_free(dev, mr);
 	if (umem) {
 		ib_umem_release(umem);
 		atomic_sub(npages, &dev->mdev->priv.reg_pages);
 	}
-
 	if (!mr->allocated_from_cache)
 		kfree(mr);
-	else
-		mlx5_mr_cache_free(dev, mr);
 }
 
 int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 370206f..f48369d 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -564,6 +564,7 @@
 
 		input_inject_event(&evdev->handle,
 				   event.type, event.code, event.value);
+		cond_resched();
 	}
 
  out:
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index cd620e0..d4b9db4 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -231,6 +231,7 @@
 	{ 0x0e6f, 0x0246, "Rock Candy Gamepad for Xbox One 2015", 0, XTYPE_XBOXONE },
 	{ 0x0e6f, 0x02ab, "PDP Controller for Xbox One", 0, XTYPE_XBOXONE },
 	{ 0x0e6f, 0x02a4, "PDP Wired Controller for Xbox One - Stealth Series", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02a6, "PDP Wired Controller for Xbox One - Camo Series", 0, XTYPE_XBOXONE },
 	{ 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
 	{ 0x0e6f, 0x0346, "Rock Candy Gamepad for Xbox One 2016", 0, XTYPE_XBOXONE },
 	{ 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 },
@@ -530,6 +531,8 @@
 	XBOXONE_INIT_PKT(0x0e6f, 0x02ab, xboxone_pdp_init2),
 	XBOXONE_INIT_PKT(0x0e6f, 0x02a4, xboxone_pdp_init1),
 	XBOXONE_INIT_PKT(0x0e6f, 0x02a4, xboxone_pdp_init2),
+	XBOXONE_INIT_PKT(0x0e6f, 0x02a6, xboxone_pdp_init1),
+	XBOXONE_INIT_PKT(0x0e6f, 0x02a6, xboxone_pdp_init2),
 	XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_rumblebegin_init),
 	XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_rumblebegin_init),
 	XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_rumblebegin_init),
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index eb14ddf..8ec483e 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -598,6 +598,7 @@
 
 		input_event(udev->dev, ev.type, ev.code, ev.value);
 		bytes += input_event_size();
+		cond_resched();
 	}
 
 	return bytes;
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index e082280..412fa71 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -707,6 +707,7 @@
 		mousedev_generate_response(client, c);
 
 		spin_unlock_irq(&client->packet_lock);
+		cond_resched();
 	}
 
 	kill_fasync(&client->fasync, SIGIO, POLL_IN);
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index b8bc715..95a78cc 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1395,15 +1395,26 @@
 	for (i = 0; i < I8042_NUM_PORTS; i++) {
 		struct serio *serio = i8042_ports[i].serio;
 
-		if (serio) {
-			printk(KERN_INFO "serio: %s at %#lx,%#lx irq %d\n",
-				serio->name,
-				(unsigned long) I8042_DATA_REG,
-				(unsigned long) I8042_COMMAND_REG,
-				i8042_ports[i].irq);
-			serio_register_port(serio);
-			device_set_wakeup_capable(&serio->dev, true);
-		}
+		if (!serio)
+			continue;
+
+		printk(KERN_INFO "serio: %s at %#lx,%#lx irq %d\n",
+			serio->name,
+			(unsigned long) I8042_DATA_REG,
+			(unsigned long) I8042_COMMAND_REG,
+			i8042_ports[i].irq);
+		serio_register_port(serio);
+		device_set_wakeup_capable(&serio->dev, true);
+
+		/*
+		 * On platforms using suspend-to-idle, allow the keyboard to
+		 * wake up the system from sleep by enabling keyboard wakeups
+		 * by default.  This is consistent with keyboard wakeup
+		 * behavior on many platforms using suspend-to-RAM (ACPI S3)
+		 * by default.
+		 */
+		if (pm_suspend_via_s2idle() && i == I8042_KBD_PORT_NO)
+			device_set_wakeup_enable(&serio->dev, true);
 	}
 }
 
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index e13d991..b29a832 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -3484,14 +3484,13 @@
 	int r;
 
 	migration_cache = KMEM_CACHE(dm_cache_migration, 0);
-	if (!migration_cache) {
-		dm_unregister_target(&cache_target);
+	if (!migration_cache)
 		return -ENOMEM;
-	}
 
 	r = dm_register_target(&cache_target);
 	if (r) {
 		DMERR("cache target registration failed: %d", r);
+		kmem_cache_destroy(migration_cache);
 		return r;
 	}
 
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 21d126a..32aabe2 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -467,7 +467,9 @@
 static struct target_type flakey_target = {
 	.name   = "flakey",
 	.version = {1, 5, 0},
+#ifdef CONFIG_BLK_DEV_ZONED
 	.features = DM_TARGET_ZONED_HM,
+#endif
 	.module = THIS_MODULE,
 	.ctr    = flakey_ctr,
 	.dtr    = flakey_dtr,
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 89ccb64..e1fa6ba 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -3462,7 +3462,8 @@
 			r = -ENOMEM;
 			goto bad;
 		}
-		ic->recalc_tags = kvmalloc((RECALC_SECTORS >> ic->sb->log2_sectors_per_block) * ic->tag_size, GFP_KERNEL);
+		ic->recalc_tags = kvmalloc_array(RECALC_SECTORS >> ic->sb->log2_sectors_per_block,
+						 ic->tag_size, GFP_KERNEL);
 		if (!ic->recalc_tags) {
 			ti->error = "Cannot allocate tags for recalculating";
 			r = -ENOMEM;
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index d10964d..2f7c44a 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -102,6 +102,7 @@
 	return DM_MAPIO_REMAPPED;
 }
 
+#ifdef CONFIG_BLK_DEV_ZONED
 static int linear_end_io(struct dm_target *ti, struct bio *bio,
 			 blk_status_t *error)
 {
@@ -112,6 +113,7 @@
 
 	return DM_ENDIO_DONE;
 }
+#endif
 
 static void linear_status(struct dm_target *ti, status_type_t type,
 			  unsigned status_flags, char *result, unsigned maxlen)
@@ -208,12 +210,16 @@
 static struct target_type linear_target = {
 	.name   = "linear",
 	.version = {1, 4, 0},
+#ifdef CONFIG_BLK_DEV_ZONED
+	.end_io = linear_end_io,
 	.features = DM_TARGET_PASSES_INTEGRITY | DM_TARGET_ZONED_HM,
+#else
+	.features = DM_TARGET_PASSES_INTEGRITY,
+#endif
 	.module = THIS_MODULE,
 	.ctr    = linear_ctr,
 	.dtr    = linear_dtr,
 	.map    = linear_map,
-	.end_io = linear_end_io,
 	.status = linear_status,
 	.prepare_ioctl = linear_prepare_ioctl,
 	.iterate_devices = linear_iterate_devices,
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 20f7e4e..45abb54 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1155,12 +1155,14 @@
 EXPORT_SYMBOL_GPL(dm_accept_partial_bio);
 
 /*
- * The zone descriptors obtained with a zone report indicate
- * zone positions within the target device. The zone descriptors
- * must be remapped to match their position within the dm device.
- * A target may call dm_remap_zone_report after completion of a
- * REQ_OP_ZONE_REPORT bio to remap the zone descriptors obtained
- * from the target device mapping to the dm device.
+ * The zone descriptors obtained with a zone report indicate zone positions
+ * within the target backing device, regardless of that device is a partition
+ * and regardless of the target mapping start sector on the device or partition.
+ * The zone descriptors start sector and write pointer position must be adjusted
+ * to match their relative position within the dm device.
+ * A target may call dm_remap_zone_report() after completion of a
+ * REQ_OP_ZONE_REPORT bio to remap the zone descriptors obtained from the
+ * backing device.
  */
 void dm_remap_zone_report(struct dm_target *ti, struct bio *bio, sector_t start)
 {
@@ -1171,6 +1173,7 @@
 	struct blk_zone *zone;
 	unsigned int nr_rep = 0;
 	unsigned int ofst;
+	sector_t part_offset;
 	struct bio_vec bvec;
 	struct bvec_iter iter;
 	void *addr;
@@ -1179,6 +1182,15 @@
 		return;
 
 	/*
+	 * bio sector was incremented by the request size on completion. Taking
+	 * into account the original request sector, the target start offset on
+	 * the backing device and the target mapping offset (ti->begin), the
+	 * start sector of the backing device. The partition offset is always 0
+	 * if the target uses a whole device.
+	 */
+	part_offset = bio->bi_iter.bi_sector + ti->begin - (start + bio_end_sector(report_bio));
+
+	/*
 	 * Remap the start sector of the reported zones. For sequential zones,
 	 * also remap the write pointer position.
 	 */
@@ -1195,6 +1207,7 @@
 		/* Set zones start sector */
 		while (hdr->nr_zones && ofst < bvec.bv_len) {
 			zone = addr + ofst;
+			zone->start -= part_offset;
 			if (zone->start >= start + ti->len) {
 				hdr->nr_zones = 0;
 				break;
@@ -1206,7 +1219,7 @@
 				else if (zone->cond == BLK_ZONE_COND_EMPTY)
 					zone->wp = zone->start;
 				else
-					zone->wp = zone->wp + ti->begin - start;
+					zone->wp = zone->wp + ti->begin - start - part_offset;
 			}
 			ofst += sizeof(struct blk_zone);
 			hdr->nr_zones--;
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index e0066ad..fc8b48a 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -703,7 +703,6 @@
 static int bcm_sf2_sw_resume(struct dsa_switch *ds)
 {
 	struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
-	unsigned int port;
 	int ret;
 
 	ret = bcm_sf2_sw_rst(priv);
@@ -715,14 +714,7 @@
 	if (priv->hw_params.num_gphy == 1)
 		bcm_sf2_gphy_enable_set(ds, true);
 
-	for (port = 0; port < DSA_MAX_PORTS; port++) {
-		if (dsa_is_user_port(ds, port))
-			bcm_sf2_port_setup(ds, port, NULL);
-		else if (dsa_is_cpu_port(ds, port))
-			bcm_sf2_imp_setup(ds, port);
-	}
-
-	bcm_sf2_enable_acb(ds);
+	ds->ops->setup(ds);
 
 	return 0;
 }
@@ -1173,10 +1165,10 @@
 {
 	struct bcm_sf2_priv *priv = platform_get_drvdata(pdev);
 
-	/* Disable all ports and interrupts */
 	priv->wol_ports_mask = 0;
-	bcm_sf2_sw_suspend(priv->dev->ds);
 	dsa_unregister_switch(priv->dev->ds);
+	/* Disable all ports and interrupts */
+	bcm_sf2_sw_suspend(priv->dev->ds);
 	bcm_sf2_mdio_unregister(priv);
 
 	return 0;
diff --git a/drivers/net/ethernet/amazon/ena/ena_eth_com.c b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
index 1c682b7..2b3ff0c 100644
--- a/drivers/net/ethernet/amazon/ena/ena_eth_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_eth_com.c
@@ -245,11 +245,11 @@
 		(cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_MASK) >>
 		ENA_ETH_IO_RX_CDESC_BASE_L4_PROTO_IDX_SHIFT;
 	ena_rx_ctx->l3_csum_err =
-		(cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK) >>
-		ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT;
+		!!((cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_MASK) >>
+		ENA_ETH_IO_RX_CDESC_BASE_L3_CSUM_ERR_SHIFT);
 	ena_rx_ctx->l4_csum_err =
-		(cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK) >>
-		ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT;
+		!!((cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_MASK) >>
+		ENA_ETH_IO_RX_CDESC_BASE_L4_CSUM_ERR_SHIFT);
 	ena_rx_ctx->hash = cdesc->hash;
 	ena_rx_ctx->frag =
 		(cdesc->status & ENA_ETH_IO_RX_CDESC_BASE_IPV4_FRAG_MASK) >>
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 25621a2..d906293 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1575,8 +1575,6 @@
 	if (rc)
 		return rc;
 
-	ena_init_napi(adapter);
-
 	ena_change_mtu(adapter->netdev, adapter->netdev->mtu);
 
 	ena_refill_all_rx_bufs(adapter);
@@ -1730,6 +1728,13 @@
 
 	ena_setup_io_intr(adapter);
 
+	/* napi poll functions should be initialized before running
+	 * request_irq(), to handle a rare condition where there is a pending
+	 * interrupt, causing the ISR to fire immediately while the poll
+	 * function wasn't set yet, causing a null dereference
+	 */
+	ena_init_napi(adapter);
+
 	rc = ena_request_io_irq(adapter);
 	if (rc)
 		goto err_req_irq;
@@ -2619,7 +2624,11 @@
 	ena_free_mgmnt_irq(adapter);
 	ena_disable_msix(adapter);
 err_device_destroy:
+	ena_com_abort_admin_commands(ena_dev);
+	ena_com_wait_for_abort_completion(ena_dev);
 	ena_com_admin_destroy(ena_dev);
+	ena_com_mmio_reg_read_request_destroy(ena_dev);
+	ena_com_dev_reset(ena_dev, ENA_REGS_RESET_DRIVER_INVALID_STATE);
 err:
 	clear_bit(ENA_FLAG_DEVICE_RUNNING, &adapter->flags);
 	clear_bit(ENA_FLAG_ONGOING_RESET, &adapter->flags);
@@ -3099,15 +3108,8 @@
 
 static void ena_release_bars(struct ena_com_dev *ena_dev, struct pci_dev *pdev)
 {
-	int release_bars;
+	int release_bars = pci_select_bars(pdev, IORESOURCE_MEM) & ENA_BAR_MASK;
 
-	if (ena_dev->mem_bar)
-		devm_iounmap(&pdev->dev, ena_dev->mem_bar);
-
-	if (ena_dev->reg_bar)
-		devm_iounmap(&pdev->dev, ena_dev->reg_bar);
-
-	release_bars = pci_select_bars(pdev, IORESOURCE_MEM) & ENA_BAR_MASK;
 	pci_release_selected_regions(pdev, release_bars);
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index d2d5944..6a04603 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -260,47 +260,34 @@
 			     NULL, NULL, NULL),
 };
 
-static void mlx4_devlink_set_init_value(struct devlink *devlink, u32 param_id,
-					union devlink_param_value init_val)
-{
-	struct mlx4_priv *priv = devlink_priv(devlink);
-	struct mlx4_dev *dev = &priv->dev;
-	int err;
-
-	err = devlink_param_driverinit_value_set(devlink, param_id, init_val);
-	if (err)
-		mlx4_warn(dev,
-			  "devlink set parameter %u value failed (err = %d)",
-			  param_id, err);
-}
-
 static void mlx4_devlink_set_params_init_values(struct devlink *devlink)
 {
 	union devlink_param_value value;
 
 	value.vbool = !!mlx4_internal_err_reset;
-	mlx4_devlink_set_init_value(devlink,
-				    DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
-				    value);
+	devlink_param_driverinit_value_set(devlink,
+					   DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
+					   value);
 
 	value.vu32 = 1UL << log_num_mac;
-	mlx4_devlink_set_init_value(devlink,
-				    DEVLINK_PARAM_GENERIC_ID_MAX_MACS, value);
+	devlink_param_driverinit_value_set(devlink,
+					   DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
+					   value);
 
 	value.vbool = enable_64b_cqe_eqe;
-	mlx4_devlink_set_init_value(devlink,
-				    MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
-				    value);
+	devlink_param_driverinit_value_set(devlink,
+					   MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
+					   value);
 
 	value.vbool = enable_4k_uar;
-	mlx4_devlink_set_init_value(devlink,
-				    MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
-				    value);
+	devlink_param_driverinit_value_set(devlink,
+					   MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
+					   value);
 
 	value.vbool = false;
-	mlx4_devlink_set_init_value(devlink,
-				    DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
-				    value);
+	devlink_param_driverinit_value_set(devlink,
+					   DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
+					   value);
 }
 
 static inline void mlx4_set_num_reserved_uars(struct mlx4_dev *dev,
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 9a5e296..3a5e616 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -4282,8 +4282,8 @@
 		RTL_W32(tp, RxConfig, RX_FIFO_THRESH | RX_DMA_BURST);
 		break;
 	case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
-	case RTL_GIGA_MAC_VER_34:
-	case RTL_GIGA_MAC_VER_35:
+	case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36:
+	case RTL_GIGA_MAC_VER_38:
 		RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST);
 		break;
 	case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51:
diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c
index 7aa5ebb..4289ccb 100644
--- a/drivers/net/ethernet/socionext/netsec.c
+++ b/drivers/net/ethernet/socionext/netsec.c
@@ -735,8 +735,11 @@
 		u16 idx = dring->tail;
 		struct netsec_de *de = dring->vaddr + (DESC_SZ * idx);
 
-		if (de->attr & (1U << NETSEC_RX_PKT_OWN_FIELD))
+		if (de->attr & (1U << NETSEC_RX_PKT_OWN_FIELD)) {
+			/* reading the register clears the irq */
+			netsec_read(priv, NETSEC_REG_NRM_RX_PKTCNT);
 			break;
+		}
 
 		/* This  barrier is needed to keep us from reading
 		 * any other fields out of the netsec_de until we have
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 6e13b88..fd8bb99 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -163,8 +163,6 @@
 /* Give this long for the PHY to reset. */
 #define T_PHY_RESET_MS	50
 
-static DEFINE_MUTEX(sfp_mutex);
-
 struct sff_data {
 	unsigned int gpios;
 	bool (*module_supported)(const struct sfp_eeprom_id *id);
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 533b6fb..72a55b6 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1241,6 +1241,7 @@
 	{QMI_FIXED_INTF(0x0b3c, 0xc00b, 4)},	/* Olivetti Olicard 500 */
 	{QMI_FIXED_INTF(0x1e2d, 0x0060, 4)},	/* Cinterion PLxx */
 	{QMI_FIXED_INTF(0x1e2d, 0x0053, 4)},	/* Cinterion PHxx,PXxx */
+	{QMI_FIXED_INTF(0x1e2d, 0x0063, 10)},	/* Cinterion ALASxx (1 RmNet) */
 	{QMI_FIXED_INTF(0x1e2d, 0x0082, 4)},	/* Cinterion PHxx,PXxx (2 RmNet) */
 	{QMI_FIXED_INTF(0x1e2d, 0x0082, 5)},	/* Cinterion PHxx,PXxx (2 RmNet) */
 	{QMI_FIXED_INTF(0x1e2d, 0x0083, 4)},	/* Cinterion PHxx,PXxx (1 RmNet + USB Audio)*/
diff --git a/drivers/net/wireless/mediatek/mt76/usb.c b/drivers/net/wireless/mediatek/mt76/usb.c
index 7780b07..79e59f2 100644
--- a/drivers/net/wireless/mediatek/mt76/usb.c
+++ b/drivers/net/wireless/mediatek/mt76/usb.c
@@ -258,7 +258,7 @@
 	if (!buf->urb)
 		return -ENOMEM;
 
-	buf->urb->sg = devm_kzalloc(dev->dev, nsgs * sizeof(*buf->urb->sg),
+	buf->urb->sg = devm_kcalloc(dev->dev, nsgs, sizeof(*buf->urb->sg),
 				    gfp);
 	if (!buf->urb->sg)
 		return -ENOMEM;
@@ -464,8 +464,8 @@
 	int i, err, nsgs;
 
 	spin_lock_init(&q->lock);
-	q->entry = devm_kzalloc(dev->dev,
-				MT_NUM_RX_ENTRIES * sizeof(*q->entry),
+	q->entry = devm_kcalloc(dev->dev,
+				MT_NUM_RX_ENTRIES, sizeof(*q->entry),
 				GFP_KERNEL);
 	if (!q->entry)
 		return -ENOMEM;
@@ -717,8 +717,8 @@
 		INIT_LIST_HEAD(&q->swq);
 		q->hw_idx = q2hwq(i);
 
-		q->entry = devm_kzalloc(dev->dev,
-					MT_NUM_TX_ENTRIES * sizeof(*q->entry),
+		q->entry = devm_kcalloc(dev->dev,
+					MT_NUM_TX_ENTRIES, sizeof(*q->entry),
 					GFP_KERNEL);
 		if (!q->entry)
 			return -ENOMEM;
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 722537e..41b4971 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -771,6 +771,9 @@
 	struct of_phandle_args args;
 	int i, rc;
 
+	if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
+		return;
+
 	np = of_find_node_by_path("/testcase-data/interrupts/interrupts0");
 	if (!np) {
 		pr_err("missing testcase data\n");
@@ -845,6 +848,9 @@
 	struct of_phandle_args args;
 	int i, rc;
 
+	if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
+		return;
+
 	np = of_find_node_by_path("/testcase-data/interrupts/interrupts-extended0");
 	if (!np) {
 		pr_err("missing testcase data\n");
@@ -1001,15 +1007,19 @@
 	pdev = of_find_device_by_node(np);
 	unittest(pdev, "device 1 creation failed\n");
 
-	irq = platform_get_irq(pdev, 0);
-	unittest(irq == -EPROBE_DEFER, "device deferred probe failed - %d\n", irq);
+	if (!(of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)) {
+		irq = platform_get_irq(pdev, 0);
+		unittest(irq == -EPROBE_DEFER,
+			 "device deferred probe failed - %d\n", irq);
 
-	/* Test that a parsing failure does not return -EPROBE_DEFER */
-	np = of_find_node_by_path("/testcase-data/testcase-device2");
-	pdev = of_find_device_by_node(np);
-	unittest(pdev, "device 2 creation failed\n");
-	irq = platform_get_irq(pdev, 0);
-	unittest(irq < 0 && irq != -EPROBE_DEFER, "device parsing error failed - %d\n", irq);
+		/* Test that a parsing failure does not return -EPROBE_DEFER */
+		np = of_find_node_by_path("/testcase-data/testcase-device2");
+		pdev = of_find_device_by_node(np);
+		unittest(pdev, "device 2 creation failed\n");
+		irq = platform_get_irq(pdev, 0);
+		unittest(irq < 0 && irq != -EPROBE_DEFER,
+			 "device parsing error failed - %d\n", irq);
+	}
 
 	np = of_find_node_by_path("/testcase-data/platform-tests");
 	unittest(np, "No testcase data in device tree\n");
diff --git a/drivers/pci/controller/pcie-cadence.c b/drivers/pci/controller/pcie-cadence.c
index 86f1b00..975bcdd 100644
--- a/drivers/pci/controller/pcie-cadence.c
+++ b/drivers/pci/controller/pcie-cadence.c
@@ -180,11 +180,11 @@
 		return 0;
 	}
 
-	phy = devm_kzalloc(dev, sizeof(*phy) * phy_count, GFP_KERNEL);
+	phy = devm_kcalloc(dev, phy_count, sizeof(*phy), GFP_KERNEL);
 	if (!phy)
 		return -ENOMEM;
 
-	link = devm_kzalloc(dev, sizeof(*link) * phy_count, GFP_KERNEL);
+	link = devm_kcalloc(dev, phy_count, sizeof(*link), GFP_KERNEL);
 	if (!link)
 		return -ENOMEM;
 
diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c
index 4a8a8ef..cf73a40 100644
--- a/drivers/pinctrl/pinctrl-mcp23s08.c
+++ b/drivers/pinctrl/pinctrl-mcp23s08.c
@@ -636,6 +636,14 @@
 		return err;
 	}
 
+	return 0;
+}
+
+static int mcp23s08_irqchip_setup(struct mcp23s08 *mcp)
+{
+	struct gpio_chip *chip = &mcp->chip;
+	int err;
+
 	err =  gpiochip_irqchip_add_nested(chip,
 					   &mcp23s08_irq_chip,
 					   0,
@@ -912,7 +920,7 @@
 	}
 
 	if (mcp->irq && mcp->irq_controller) {
-		ret = mcp23s08_irq_setup(mcp);
+		ret = mcp23s08_irqchip_setup(mcp);
 		if (ret)
 			goto fail;
 	}
@@ -944,6 +952,9 @@
 		goto fail;
 	}
 
+	if (mcp->irq)
+		ret = mcp23s08_irq_setup(mcp);
+
 fail:
 	if (ret < 0)
 		dev_dbg(dev, "can't setup chip %d, --> %d\n", addr, ret);
diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c
index 398393a..b6fd483 100644
--- a/drivers/platform/chrome/cros_ec_proto.c
+++ b/drivers/platform/chrome/cros_ec_proto.c
@@ -520,7 +520,7 @@
 	ret = cros_ec_cmd_xfer(ec_dev, msg);
 	if (ret > 0) {
 		ec_dev->event_size = ret - 1;
-		memcpy(&ec_dev->event_data, msg->data, ec_dev->event_size);
+		memcpy(&ec_dev->event_data, msg->data, ret);
 	}
 
 	return ret;
diff --git a/drivers/s390/char/sclp_early_core.c b/drivers/s390/char/sclp_early_core.c
index eceba38..2f61f55 100644
--- a/drivers/s390/char/sclp_early_core.c
+++ b/drivers/s390/char/sclp_early_core.c
@@ -210,11 +210,11 @@
  * Output one or more lines of text on the SCLP console (VT220 and /
  * or line-mode).
  */
-void __sclp_early_printk(const char *str, unsigned int len)
+void __sclp_early_printk(const char *str, unsigned int len, unsigned int force)
 {
 	int have_linemode, have_vt220;
 
-	if (sclp_init_state != sclp_init_state_uninitialized)
+	if (!force && sclp_init_state != sclp_init_state_uninitialized)
 		return;
 	if (sclp_early_setup(0, &have_linemode, &have_vt220) != 0)
 		return;
@@ -227,5 +227,10 @@
 
 void sclp_early_printk(const char *str)
 {
-	__sclp_early_printk(str, strlen(str));
+	__sclp_early_printk(str, strlen(str), 0);
+}
+
+void sclp_early_printk_force(const char *str)
+{
+	__sclp_early_printk(str, strlen(str), 1);
 }
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index dbe7c7a..fd77e46 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -163,7 +163,7 @@
 
 	for (i = 0; i < pat->pat_nr; i++, pa++)
 		for (j = 0; j < pa->pa_nr; j++)
-			if (pa->pa_iova_pfn[i] == iova_pfn)
+			if (pa->pa_iova_pfn[j] == iova_pfn)
 				return true;
 
 	return false;
diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
index 770fa9c..f47d16b 100644
--- a/drivers/s390/cio/vfio_ccw_drv.c
+++ b/drivers/s390/cio/vfio_ccw_drv.c
@@ -22,6 +22,7 @@
 #include "vfio_ccw_private.h"
 
 struct workqueue_struct *vfio_ccw_work_q;
+struct kmem_cache *vfio_ccw_io_region;
 
 /*
  * Helpers
@@ -79,7 +80,7 @@
 		cp_update_scsw(&private->cp, &irb->scsw);
 		cp_free(&private->cp);
 	}
-	memcpy(private->io_region.irb_area, irb, sizeof(*irb));
+	memcpy(private->io_region->irb_area, irb, sizeof(*irb));
 
 	if (private->io_trigger)
 		eventfd_signal(private->io_trigger, 1);
@@ -114,6 +115,14 @@
 	private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
 	if (!private)
 		return -ENOMEM;
+
+	private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,
+					       GFP_KERNEL | GFP_DMA);
+	if (!private->io_region) {
+		kfree(private);
+		return -ENOMEM;
+	}
+
 	private->sch = sch;
 	dev_set_drvdata(&sch->dev, private);
 
@@ -139,6 +148,7 @@
 	cio_disable_subchannel(sch);
 out_free:
 	dev_set_drvdata(&sch->dev, NULL);
+	kmem_cache_free(vfio_ccw_io_region, private->io_region);
 	kfree(private);
 	return ret;
 }
@@ -153,6 +163,7 @@
 
 	dev_set_drvdata(&sch->dev, NULL);
 
+	kmem_cache_free(vfio_ccw_io_region, private->io_region);
 	kfree(private);
 
 	return 0;
@@ -232,10 +243,20 @@
 	if (!vfio_ccw_work_q)
 		return -ENOMEM;
 
+	vfio_ccw_io_region = kmem_cache_create_usercopy("vfio_ccw_io_region",
+					sizeof(struct ccw_io_region), 0,
+					SLAB_ACCOUNT, 0,
+					sizeof(struct ccw_io_region), NULL);
+	if (!vfio_ccw_io_region) {
+		destroy_workqueue(vfio_ccw_work_q);
+		return -ENOMEM;
+	}
+
 	isc_register(VFIO_CCW_ISC);
 	ret = css_driver_register(&vfio_ccw_sch_driver);
 	if (ret) {
 		isc_unregister(VFIO_CCW_ISC);
+		kmem_cache_destroy(vfio_ccw_io_region);
 		destroy_workqueue(vfio_ccw_work_q);
 	}
 
@@ -246,6 +267,7 @@
 {
 	css_driver_unregister(&vfio_ccw_sch_driver);
 	isc_unregister(VFIO_CCW_ISC);
+	kmem_cache_destroy(vfio_ccw_io_region);
 	destroy_workqueue(vfio_ccw_work_q);
 }
 module_init(vfio_ccw_sch_init);
diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c
index 797a8273..f94aa01 100644
--- a/drivers/s390/cio/vfio_ccw_fsm.c
+++ b/drivers/s390/cio/vfio_ccw_fsm.c
@@ -93,13 +93,13 @@
 			 enum vfio_ccw_event event)
 {
 	pr_err("vfio-ccw: FSM: I/O request from state:%d\n", private->state);
-	private->io_region.ret_code = -EIO;
+	private->io_region->ret_code = -EIO;
 }
 
 static void fsm_io_busy(struct vfio_ccw_private *private,
 			enum vfio_ccw_event event)
 {
-	private->io_region.ret_code = -EBUSY;
+	private->io_region->ret_code = -EBUSY;
 }
 
 static void fsm_disabled_irq(struct vfio_ccw_private *private,
@@ -126,7 +126,7 @@
 {
 	union orb *orb;
 	union scsw *scsw = &private->scsw;
-	struct ccw_io_region *io_region = &private->io_region;
+	struct ccw_io_region *io_region = private->io_region;
 	struct mdev_device *mdev = private->mdev;
 	char *errstr = "request";
 
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index 41eeb57..f673e10 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -174,7 +174,7 @@
 		return -EINVAL;
 
 	private = dev_get_drvdata(mdev_parent_dev(mdev));
-	region = &private->io_region;
+	region = private->io_region;
 	if (copy_to_user(buf, (void *)region + *ppos, count))
 		return -EFAULT;
 
@@ -196,7 +196,7 @@
 	if (private->state != VFIO_CCW_STATE_IDLE)
 		return -EACCES;
 
-	region = &private->io_region;
+	region = private->io_region;
 	if (copy_from_user((void *)region + *ppos, buf, count))
 		return -EFAULT;
 
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h
index 78a66d9..078e46f 100644
--- a/drivers/s390/cio/vfio_ccw_private.h
+++ b/drivers/s390/cio/vfio_ccw_private.h
@@ -41,7 +41,7 @@
 	atomic_t		avail;
 	struct mdev_device	*mdev;
 	struct notifier_block	nb;
-	struct ccw_io_region	io_region;
+	struct ccw_io_region	*io_region;
 
 	struct channel_program	cp;
 	struct irb		irb;
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c
index 7b31f19..050879a 100644
--- a/drivers/sbus/char/openprom.c
+++ b/drivers/sbus/char/openprom.c
@@ -715,22 +715,13 @@
 
 static int __init openprom_init(void)
 {
-	struct device_node *dp;
 	int err;
 
 	err = misc_register(&openprom_dev);
 	if (err)
 		return err;
 
-	dp = of_find_node_by_path("/");
-	dp = dp->child;
-	while (dp) {
-		if (!strcmp(dp->name, "options"))
-			break;
-		dp = dp->sibling;
-	}
-	options_node = dp;
-
+	options_node = of_get_child_by_name(of_find_node_by_path("/"), "options");
 	if (!options_node) {
 		misc_deregister(&openprom_dev);
 		return -EIO;
diff --git a/drivers/sbus/char/oradax.c b/drivers/sbus/char/oradax.c
index 524f9ea..6516bc3 100644
--- a/drivers/sbus/char/oradax.c
+++ b/drivers/sbus/char/oradax.c
@@ -689,8 +689,7 @@
 alloc_error:
 	kfree(ctx->ccb_buf);
 done:
-	if (ctx != NULL)
-		kfree(ctx);
+	kfree(ctx);
 	return -ENOMEM;
 }
 
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 29ec343..1515074 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -868,8 +868,8 @@
 	geni_se_init(&port->se, port->rx_wm, port->rx_rfr);
 	geni_se_select_mode(&port->se, port->xfer_mode);
 	if (!uart_console(uport)) {
-		port->rx_fifo = devm_kzalloc(uport->dev,
-			port->rx_fifo_depth * sizeof(u32), GFP_KERNEL);
+		port->rx_fifo = devm_kcalloc(uport->dev,
+			port->rx_fifo_depth, sizeof(u32), GFP_KERNEL);
 		if (!port->rx_fifo)
 			return -ENOMEM;
 	}
diff --git a/drivers/video/fbdev/aty/atyfb.h b/drivers/video/fbdev/aty/atyfb.h
index 8235b28..d09bab3 100644
--- a/drivers/video/fbdev/aty/atyfb.h
+++ b/drivers/video/fbdev/aty/atyfb.h
@@ -333,6 +333,8 @@
 extern void aty_set_pll_ct(const struct fb_info *info, const union aty_pll *pll);
 extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par);
 
+extern const u8 aty_postdividers[8];
+
 
     /*
      *  Hardware cursor support
@@ -359,7 +361,6 @@
 
 extern void aty_reset_engine(const struct atyfb_par *par);
 extern void aty_init_engine(struct atyfb_par *par, struct fb_info *info);
-extern u8   aty_ld_pll_ct(int offset, const struct atyfb_par *par);
 
 void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index a9a8272..05111e9 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -3087,17 +3087,18 @@
 		/*
 		 * PLL Reference Divider M:
 		 */
-		M = pll_regs[2];
+		M = pll_regs[PLL_REF_DIV];
 
 		/*
 		 * PLL Feedback Divider N (Dependent on CLOCK_CNTL):
 		 */
-		N = pll_regs[7 + (clock_cntl & 3)];
+		N = pll_regs[VCLK0_FB_DIV + (clock_cntl & 3)];
 
 		/*
 		 * PLL Post Divider P (Dependent on CLOCK_CNTL):
 		 */
-		P = 1 << (pll_regs[6] >> ((clock_cntl & 3) << 1));
+		P = aty_postdividers[((pll_regs[VCLK_POST_DIV] >> ((clock_cntl & 3) << 1)) & 3) |
+		                     ((pll_regs[PLL_EXT_CNTL] >> (2 + (clock_cntl & 3))) & 4)];
 
 		/*
 		 * PLL Divider Q:
diff --git a/drivers/video/fbdev/aty/mach64_ct.c b/drivers/video/fbdev/aty/mach64_ct.c
index 74a62aa..f87cc81 100644
--- a/drivers/video/fbdev/aty/mach64_ct.c
+++ b/drivers/video/fbdev/aty/mach64_ct.c
@@ -115,7 +115,7 @@
  */
 
 #define Maximum_DSP_PRECISION 7
-static u8 postdividers[] = {1,2,4,8,3};
+const u8 aty_postdividers[8] = {1,2,4,8,3,5,6,12};
 
 static int aty_dsp_gt(const struct fb_info *info, u32 bpp, struct pll_ct *pll)
 {
@@ -222,7 +222,7 @@
 		pll->vclk_post_div += (q <  64*8);
 		pll->vclk_post_div += (q <  32*8);
 	}
-	pll->vclk_post_div_real = postdividers[pll->vclk_post_div];
+	pll->vclk_post_div_real = aty_postdividers[pll->vclk_post_div];
 	//    pll->vclk_post_div <<= 6;
 	pll->vclk_fb_div = q * pll->vclk_post_div_real / 8;
 	pllvclk = (1000000 * 2 * pll->vclk_fb_div) /
@@ -513,7 +513,7 @@
 		u8 mclk_fb_div, pll_ext_cntl;
 		pll->ct.pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par);
 		pll_ext_cntl = aty_ld_pll_ct(PLL_EXT_CNTL, par);
-		pll->ct.xclk_post_div_real = postdividers[pll_ext_cntl & 0x07];
+		pll->ct.xclk_post_div_real = aty_postdividers[pll_ext_cntl & 0x07];
 		mclk_fb_div = aty_ld_pll_ct(MCLK_FB_DIV, par);
 		if (pll_ext_cntl & PLL_MFB_TIMES_4_2B)
 			mclk_fb_div <<= 1;
@@ -535,7 +535,7 @@
 		xpost_div += (q <  64*8);
 		xpost_div += (q <  32*8);
 	}
-	pll->ct.xclk_post_div_real = postdividers[xpost_div];
+	pll->ct.xclk_post_div_real = aty_postdividers[xpost_div];
 	pll->ct.mclk_fb_div = q * pll->ct.xclk_post_div_real / 8;
 
 #ifdef CONFIG_PPC
@@ -584,7 +584,7 @@
 			mpost_div += (q <  64*8);
 			mpost_div += (q <  32*8);
 		}
-		sclk_post_div_real = postdividers[mpost_div];
+		sclk_post_div_real = aty_postdividers[mpost_div];
 		pll->ct.sclk_fb_div = q * sclk_post_div_real / 8;
 		pll->ct.spll_cntl2 = mpost_div << 4;
 #ifdef DEBUG
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 03128ed..3c159a7 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -975,6 +975,10 @@
 {
 	struct gfs2_inode *ip = GFS2_I(inode);
 
+	if (!page_has_buffers(page)) {
+		create_empty_buffers(page, inode->i_sb->s_blocksize,
+				     (1 << BH_Dirty)|(1 << BH_Uptodate));
+	}
 	gfs2_page_add_databufs(ip, page, offset_in_page(pos), copied);
 }
 
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index 5289e22..42ea7ba 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -1220,35 +1220,92 @@
 	return 0;
 }
 
+/* Unlock both inodes after they've been prepped for a range clone. */
+STATIC void
+xfs_reflink_remap_unlock(
+	struct file		*file_in,
+	struct file		*file_out)
+{
+	struct inode		*inode_in = file_inode(file_in);
+	struct xfs_inode	*src = XFS_I(inode_in);
+	struct inode		*inode_out = file_inode(file_out);
+	struct xfs_inode	*dest = XFS_I(inode_out);
+	bool			same_inode = (inode_in == inode_out);
+
+	xfs_iunlock(dest, XFS_MMAPLOCK_EXCL);
+	if (!same_inode)
+		xfs_iunlock(src, XFS_MMAPLOCK_SHARED);
+	inode_unlock(inode_out);
+	if (!same_inode)
+		inode_unlock_shared(inode_in);
+}
+
 /*
- * Link a range of blocks from one file to another.
+ * If we're reflinking to a point past the destination file's EOF, we must
+ * zero any speculative post-EOF preallocations that sit between the old EOF
+ * and the destination file offset.
  */
-int
-xfs_reflink_remap_range(
+static int
+xfs_reflink_zero_posteof(
+	struct xfs_inode	*ip,
+	loff_t			pos)
+{
+	loff_t			isize = i_size_read(VFS_I(ip));
+
+	if (pos <= isize)
+		return 0;
+
+	trace_xfs_zero_eof(ip, isize, pos - isize);
+	return iomap_zero_range(VFS_I(ip), isize, pos - isize, NULL,
+			&xfs_iomap_ops);
+}
+
+/*
+ * Prepare two files for range cloning.  Upon a successful return both inodes
+ * will have the iolock and mmaplock held, the page cache of the out file will
+ * be truncated, and any leases on the out file will have been broken.  This
+ * function borrows heavily from xfs_file_aio_write_checks.
+ *
+ * The VFS allows partial EOF blocks to "match" for dedupe even though it hasn't
+ * checked that the bytes beyond EOF physically match. Hence we cannot use the
+ * EOF block in the source dedupe range because it's not a complete block match,
+ * hence can introduce a corruption into the file that has it's block replaced.
+ *
+ * In similar fashion, the VFS file cloning also allows partial EOF blocks to be
+ * "block aligned" for the purposes of cloning entire files.  However, if the
+ * source file range includes the EOF block and it lands within the existing EOF
+ * of the destination file, then we can expose stale data from beyond the source
+ * file EOF in the destination file.
+ *
+ * XFS doesn't support partial block sharing, so in both cases we have check
+ * these cases ourselves. For dedupe, we can simply round the length to dedupe
+ * down to the previous whole block and ignore the partial EOF block. While this
+ * means we can't dedupe the last block of a file, this is an acceptible
+ * tradeoff for simplicity on implementation.
+ *
+ * For cloning, we want to share the partial EOF block if it is also the new EOF
+ * block of the destination file. If the partial EOF block lies inside the
+ * existing destination EOF, then we have to abort the clone to avoid exposing
+ * stale data in the destination file. Hence we reject these clone attempts with
+ * -EINVAL in this case.
+ */
+STATIC int
+xfs_reflink_remap_prep(
 	struct file		*file_in,
 	loff_t			pos_in,
 	struct file		*file_out,
 	loff_t			pos_out,
-	u64			len,
+	u64			*len,
 	bool			is_dedupe)
 {
 	struct inode		*inode_in = file_inode(file_in);
 	struct xfs_inode	*src = XFS_I(inode_in);
 	struct inode		*inode_out = file_inode(file_out);
 	struct xfs_inode	*dest = XFS_I(inode_out);
-	struct xfs_mount	*mp = src->i_mount;
 	bool			same_inode = (inode_in == inode_out);
-	xfs_fileoff_t		sfsbno, dfsbno;
-	xfs_filblks_t		fsblen;
-	xfs_extlen_t		cowextsize;
+	u64			blkmask = i_blocksize(inode_in) - 1;
 	ssize_t			ret;
 
-	if (!xfs_sb_version_hasreflink(&mp->m_sb))
-		return -EOPNOTSUPP;
-
-	if (XFS_FORCED_SHUTDOWN(mp))
-		return -EIO;
-
 	/* Lock both files against IO */
 	ret = xfs_iolock_two_inodes_and_break_layout(inode_in, inode_out);
 	if (ret)
@@ -1270,33 +1327,115 @@
 		goto out_unlock;
 
 	ret = vfs_clone_file_prep_inodes(inode_in, pos_in, inode_out, pos_out,
-			&len, is_dedupe);
+			len, is_dedupe);
 	if (ret <= 0)
 		goto out_unlock;
 
+	/*
+	 * If the dedupe data matches, chop off the partial EOF block
+	 * from the source file so we don't try to dedupe the partial
+	 * EOF block.
+	 */
+	if (is_dedupe) {
+		*len &= ~blkmask;
+	} else if (*len & blkmask) {
+		/*
+		 * The user is attempting to share a partial EOF block,
+		 * if it's inside the destination EOF then reject it.
+		 */
+		if (pos_out + *len < i_size_read(inode_out)) {
+			ret = -EINVAL;
+			goto out_unlock;
+		}
+	}
+
 	/* Attach dquots to dest inode before changing block map */
 	ret = xfs_qm_dqattach(dest);
 	if (ret)
 		goto out_unlock;
 
-	trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out);
-
 	/*
-	 * Clear out post-eof preallocations because we don't have page cache
-	 * backing the delayed allocations and they'll never get freed on
-	 * their own.
+	 * Zero existing post-eof speculative preallocations in the destination
+	 * file.
 	 */
-	if (xfs_can_free_eofblocks(dest, true)) {
-		ret = xfs_free_eofblocks(dest);
-		if (ret)
-			goto out_unlock;
-	}
+	ret = xfs_reflink_zero_posteof(dest, pos_out);
+	if (ret)
+		goto out_unlock;
 
 	/* Set flags and remap blocks. */
 	ret = xfs_reflink_set_inode_flag(src, dest);
 	if (ret)
 		goto out_unlock;
 
+	/* Zap any page cache for the destination file's range. */
+	truncate_inode_pages_range(&inode_out->i_data, pos_out,
+				   PAGE_ALIGN(pos_out + *len) - 1);
+
+	/* If we're altering the file contents... */
+	if (!is_dedupe) {
+		/*
+		 * ...update the timestamps (which will grab the ilock again
+		 * from xfs_fs_dirty_inode, so we have to call it before we
+		 * take the ilock).
+		 */
+		if (!(file_out->f_mode & FMODE_NOCMTIME)) {
+			ret = file_update_time(file_out);
+			if (ret)
+				goto out_unlock;
+		}
+
+		/*
+		 * ...clear the security bits if the process is not being run
+		 * by root.  This keeps people from modifying setuid and setgid
+		 * binaries.
+		 */
+		ret = file_remove_privs(file_out);
+		if (ret)
+			goto out_unlock;
+	}
+
+	return 1;
+out_unlock:
+	xfs_reflink_remap_unlock(file_in, file_out);
+	return ret;
+}
+
+/*
+ * Link a range of blocks from one file to another.
+ */
+int
+xfs_reflink_remap_range(
+	struct file		*file_in,
+	loff_t			pos_in,
+	struct file		*file_out,
+	loff_t			pos_out,
+	u64			len,
+	bool			is_dedupe)
+{
+	struct inode		*inode_in = file_inode(file_in);
+	struct xfs_inode	*src = XFS_I(inode_in);
+	struct inode		*inode_out = file_inode(file_out);
+	struct xfs_inode	*dest = XFS_I(inode_out);
+	struct xfs_mount	*mp = src->i_mount;
+	xfs_fileoff_t		sfsbno, dfsbno;
+	xfs_filblks_t		fsblen;
+	xfs_extlen_t		cowextsize;
+	ssize_t			ret;
+
+	if (!xfs_sb_version_hasreflink(&mp->m_sb))
+		return -EOPNOTSUPP;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return -EIO;
+
+	/* Prepare and then clone file data. */
+	ret = xfs_reflink_remap_prep(file_in, pos_in, file_out, pos_out,
+			&len, is_dedupe);
+	if (ret <= 0)
+		return ret;
+
+	trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out);
+
 	dfsbno = XFS_B_TO_FSBT(mp, pos_out);
 	sfsbno = XFS_B_TO_FSBT(mp, pos_in);
 	fsblen = XFS_B_TO_FSB(mp, len);
@@ -1305,10 +1444,6 @@
 	if (ret)
 		goto out_unlock;
 
-	/* Zap any page cache for the destination file's range. */
-	truncate_inode_pages_range(&inode_out->i_data, pos_out,
-				   PAGE_ALIGN(pos_out + len) - 1);
-
 	/*
 	 * Carry the cowextsize hint from src to dest if we're sharing the
 	 * entire source file to the entire destination file, the source file
@@ -1325,12 +1460,7 @@
 			is_dedupe);
 
 out_unlock:
-	xfs_iunlock(dest, XFS_MMAPLOCK_EXCL);
-	if (!same_inode)
-		xfs_iunlock(src, XFS_MMAPLOCK_SHARED);
-	inode_unlock(inode_out);
-	if (!same_inode)
-		inode_unlock_shared(inode_in);
+	xfs_reflink_remap_unlock(file_in, file_out);
 	if (ret)
 		trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_);
 	return ret;
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 7b75ff6..d7701d4 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -68,7 +68,7 @@
  */
 #ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
 #define TEXT_MAIN .text .text.[0-9a-zA-Z_]*
-#define DATA_MAIN .data .data.[0-9a-zA-Z_]*
+#define DATA_MAIN .data .data.[0-9a-zA-Z_]* .data..LPBX*
 #define SDATA_MAIN .sdata .sdata.[0-9a-zA-Z_]*
 #define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]*
 #define BSS_MAIN .bss .bss.[0-9a-zA-Z_]*
@@ -613,8 +613,8 @@
 
 #define EXIT_DATA							\
 	*(.exit.data .exit.data.*)					\
-	*(.fini_array)							\
-	*(.dtors)							\
+	*(.fini_array .fini_array.*)					\
+	*(.dtors .dtors.*)						\
 	MEM_DISCARD(exit.data*)						\
 	MEM_DISCARD(exit.rodata*)
 
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index ff20b67..22254c1 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -412,6 +412,7 @@
 	 * specific task are charged to the dom_cgrp.
 	 */
 	struct cgroup *dom_cgrp;
+	struct cgroup *old_dom_cgrp;		/* used while enabling threaded */
 
 	/* per-cpu recursive resource statistics */
 	struct cgroup_rstat_cpu __percpu *rstat_cpu;
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 0ea328e..a4d5eb3 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -95,6 +95,13 @@
 	unsigned int num_parents;
 
 	/**
+	 * @parent_irq:
+	 *
+	 * For use by gpiochip_set_cascaded_irqchip()
+	 */
+	unsigned int parent_irq;
+
+	/**
 	 * @parents:
 	 *
 	 * A list of interrupt parents of a GPIO chip. This is owned by the
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 3f4c0b1..d4b0c79 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -668,10 +668,6 @@
 	wait_queue_head_t kcompactd_wait;
 	struct task_struct *kcompactd;
 #endif
-#ifdef CONFIG_NUMA_BALANCING
-	/* Lock serializing the migrate rate limiting window */
-	spinlock_t numabalancing_migrate_lock;
-#endif
 	/*
 	 * This is a per-node reserve of pages that are not available
 	 * to userspace allocations.
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c7861e4..d837dad 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2458,6 +2458,13 @@
 	struct netlink_ext_ack	*extack;
 };
 
+struct netdev_notifier_info_ext {
+	struct netdev_notifier_info info; /* must be first */
+	union {
+		u32 mtu;
+	} ext;
+};
+
 struct netdev_notifier_change_info {
 	struct netdev_notifier_info info; /* must be first */
 	unsigned int flags_changed;
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 5a28ac9..3f529ad 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -251,6 +251,7 @@
 	return unlikely(s2idle_state == S2IDLE_STATE_ENTER);
 }
 
+extern bool pm_suspend_via_s2idle(void);
 extern void __init pm_states_init(void);
 extern void s2idle_set_ops(const struct platform_s2idle_ops *ops);
 extern void s2idle_wake(void);
@@ -282,6 +283,7 @@
 static inline void pm_set_resume_via_firmware(void) {}
 static inline bool pm_suspend_via_firmware(void) { return false; }
 static inline bool pm_resume_via_firmware(void) { return false; }
+static inline bool pm_suspend_via_s2idle(void) { return false; }
 
 static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {}
 static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
diff --git a/include/net/devlink.h b/include/net/devlink.h
index b9b89d6..99efc15 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -298,7 +298,7 @@
 
 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
 
-#define DEVLINK_PARAM_MAX_STRING_VALUE 32
+#define __DEVLINK_PARAM_MAX_STRING_VALUE 32
 enum devlink_param_type {
 	DEVLINK_PARAM_TYPE_U8,
 	DEVLINK_PARAM_TYPE_U16,
@@ -311,7 +311,7 @@
 	u8 vu8;
 	u16 vu16;
 	u32 vu32;
-	const char *vstr;
+	char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
 	bool vbool;
 };
 
@@ -553,6 +553,8 @@
 int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
 				       union devlink_param_value init_val);
 void devlink_param_value_changed(struct devlink *devlink, u32 param_id);
+void devlink_param_value_str_fill(union devlink_param_value *dst_val,
+				  const char *src);
 struct devlink_region *devlink_region_create(struct devlink *devlink,
 					     const char *region_name,
 					     u32 region_max_snapshots,
@@ -789,6 +791,12 @@
 {
 }
 
+static inline void
+devlink_param_value_str_fill(union devlink_param_value *dst_val,
+			     const char *src)
+{
+}
+
 static inline struct devlink_region *
 devlink_region_create(struct devlink *devlink,
 		      const char *region_name,
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 69c91d1..c9b7b13 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -394,6 +394,7 @@
 int fib_sync_down_dev(struct net_device *dev, unsigned long event, bool force);
 int fib_sync_down_addr(struct net_device *dev, __be32 local);
 int fib_sync_up(struct net_device *dev, unsigned int nh_flags);
+void fib_sync_mtu(struct net_device *dev, u32 orig_mtu);
 
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 int fib_multipath_hash(const struct net *net, const struct flowi4 *fl4,
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index 837393f..573d5b9 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -931,6 +931,7 @@
 	    TP_fast_assign(
 		    __entry->call = call_id;
 		    memcpy(&__entry->whdr, whdr, sizeof(__entry->whdr));
+		    __entry->where = where;
 			   ),
 
 	    TP_printk("c=%08x %08x:%08x:%08x:%04x %08x %08x %02x %02x %s %s",
diff --git a/include/uapi/linux/smc_diag.h b/include/uapi/linux/smc_diag.h
index ac9e8c9..8cb3a6f 100644
--- a/include/uapi/linux/smc_diag.h
+++ b/include/uapi/linux/smc_diag.h
@@ -18,14 +18,17 @@
  * on the internal clcsock, and more SMC-related socket data
  */
 struct smc_diag_msg {
-	__u8	diag_family;
-	__u8	diag_state;
-	__u8	diag_mode;
-	__u8	diag_shutdown;
+	__u8		diag_family;
+	__u8		diag_state;
+	union {
+		__u8	diag_mode;
+		__u8	diag_fallback; /* the old name of the field */
+	};
+	__u8		diag_shutdown;
 	struct inet_diag_sockid id;
 
-	__u32	diag_uid;
-	__u64	diag_inode;
+	__u32		diag_uid;
+	__aligned_u64	diag_inode;
 };
 
 /* Mode of a connection */
@@ -99,11 +102,11 @@
 };
 
 struct smcd_diag_dmbinfo {		/* SMC-D Socket internals */
-	__u32 linkid;			/* Link identifier */
-	__u64 peer_gid;			/* Peer GID */
-	__u64 my_gid;			/* My GID */
-	__u64 token;			/* Token of DMB */
-	__u64 peer_token;		/* Token of remote DMBE */
+	__u32		linkid;		/* Link identifier */
+	__aligned_u64	peer_gid;	/* Peer GID */
+	__aligned_u64	my_gid;		/* My GID */
+	__aligned_u64	token;		/* Token of DMB */
+	__aligned_u64	peer_token;	/* Token of remote DMBE */
 };
 
 #endif /* _UAPI_SMC_DIAG_H_ */
diff --git a/include/uapi/linux/udp.h b/include/uapi/linux/udp.h
index 09d00f8..09502de 100644
--- a/include/uapi/linux/udp.h
+++ b/include/uapi/linux/udp.h
@@ -40,5 +40,6 @@
 #define UDP_ENCAP_L2TPINUDP	3 /* rfc2661 */
 #define UDP_ENCAP_GTP0		4 /* GSM TS 09.60 */
 #define UDP_ENCAP_GTP1U		5 /* 3GPP TS 29.060 */
+#define UDP_ENCAP_RXRPC		6
 
 #endif /* _UAPI_LINUX_UDP_H */
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index aae10baf..4a3dae2 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2836,11 +2836,12 @@
 }
 
 /**
- * cgroup_save_control - save control masks of a subtree
+ * cgroup_save_control - save control masks and dom_cgrp of a subtree
  * @cgrp: root of the target subtree
  *
- * Save ->subtree_control and ->subtree_ss_mask to the respective old_
- * prefixed fields for @cgrp's subtree including @cgrp itself.
+ * Save ->subtree_control, ->subtree_ss_mask and ->dom_cgrp to the
+ * respective old_ prefixed fields for @cgrp's subtree including @cgrp
+ * itself.
  */
 static void cgroup_save_control(struct cgroup *cgrp)
 {
@@ -2850,6 +2851,7 @@
 	cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp) {
 		dsct->old_subtree_control = dsct->subtree_control;
 		dsct->old_subtree_ss_mask = dsct->subtree_ss_mask;
+		dsct->old_dom_cgrp = dsct->dom_cgrp;
 	}
 }
 
@@ -2875,11 +2877,12 @@
 }
 
 /**
- * cgroup_restore_control - restore control masks of a subtree
+ * cgroup_restore_control - restore control masks and dom_cgrp of a subtree
  * @cgrp: root of the target subtree
  *
- * Restore ->subtree_control and ->subtree_ss_mask from the respective old_
- * prefixed fields for @cgrp's subtree including @cgrp itself.
+ * Restore ->subtree_control, ->subtree_ss_mask and ->dom_cgrp from the
+ * respective old_ prefixed fields for @cgrp's subtree including @cgrp
+ * itself.
  */
 static void cgroup_restore_control(struct cgroup *cgrp)
 {
@@ -2889,6 +2892,7 @@
 	cgroup_for_each_live_descendant_post(dsct, d_css, cgrp) {
 		dsct->subtree_control = dsct->old_subtree_control;
 		dsct->subtree_ss_mask = dsct->old_subtree_ss_mask;
+		dsct->dom_cgrp = dsct->old_dom_cgrp;
 	}
 }
 
@@ -3196,6 +3200,8 @@
 {
 	struct cgroup *parent = cgroup_parent(cgrp);
 	struct cgroup *dom_cgrp = parent->dom_cgrp;
+	struct cgroup *dsct;
+	struct cgroup_subsys_state *d_css;
 	int ret;
 
 	lockdep_assert_held(&cgroup_mutex);
@@ -3225,12 +3231,13 @@
 	 */
 	cgroup_save_control(cgrp);
 
-	cgrp->dom_cgrp = dom_cgrp;
+	cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp)
+		if (dsct == cgrp || cgroup_is_threaded(dsct))
+			dsct->dom_cgrp = dom_cgrp;
+
 	ret = cgroup_apply_control(cgrp);
 	if (!ret)
 		parent->nr_threaded_children++;
-	else
-		cgrp->dom_cgrp = cgrp;
 
 	cgroup_finalize_control(cgrp, ret);
 	return ret;
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 5342f6fc..0bd595a 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -63,6 +63,12 @@
 enum s2idle_states __read_mostly s2idle_state;
 static DEFINE_RAW_SPINLOCK(s2idle_lock);
 
+bool pm_suspend_via_s2idle(void)
+{
+	return mem_sleep_current == PM_SUSPEND_TO_IDLE;
+}
+EXPORT_SYMBOL_GPL(pm_suspend_via_s2idle);
+
 void s2idle_set_ops(const struct platform_s2idle_ops *ops)
 {
 	lock_system_sleep();
diff --git a/lib/Makefile b/lib/Makefile
index ca3f7eb..4238764 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -119,7 +119,6 @@
 obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate/
 obj-$(CONFIG_REED_SOLOMON) += reed_solomon/
 obj-$(CONFIG_BCH) += bch.o
-CFLAGS_bch.o := $(call cc-option,-Wframe-larger-than=4500)
 obj-$(CONFIG_LZO_COMPRESS) += lzo/
 obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
 obj-$(CONFIG_LZ4_COMPRESS) += lz4/
diff --git a/lib/bch.c b/lib/bch.c
index 7b0f200..5db6d3a 100644
--- a/lib/bch.c
+++ b/lib/bch.c
@@ -79,20 +79,19 @@
 #define GF_T(_p)               (CONFIG_BCH_CONST_T)
 #define GF_N(_p)               ((1 << (CONFIG_BCH_CONST_M))-1)
 #define BCH_MAX_M              (CONFIG_BCH_CONST_M)
+#define BCH_MAX_T	       (CONFIG_BCH_CONST_T)
 #else
 #define GF_M(_p)               ((_p)->m)
 #define GF_T(_p)               ((_p)->t)
 #define GF_N(_p)               ((_p)->n)
-#define BCH_MAX_M              15
+#define BCH_MAX_M              15 /* 2KB */
+#define BCH_MAX_T              64 /* 64 bit correction */
 #endif
 
-#define BCH_MAX_T              (((1 << BCH_MAX_M) - 1) / BCH_MAX_M)
-
 #define BCH_ECC_WORDS(_p)      DIV_ROUND_UP(GF_M(_p)*GF_T(_p), 32)
 #define BCH_ECC_BYTES(_p)      DIV_ROUND_UP(GF_M(_p)*GF_T(_p), 8)
 
 #define BCH_ECC_MAX_WORDS      DIV_ROUND_UP(BCH_MAX_M * BCH_MAX_T, 32)
-#define BCH_ECC_MAX_BYTES      DIV_ROUND_UP(BCH_MAX_M * BCH_MAX_T, 8)
 
 #ifndef dbg
 #define dbg(_fmt, args...)     do {} while (0)
@@ -202,6 +201,9 @@
 	const uint32_t * const tab3 = tab2 + 256*(l+1);
 	const uint32_t *pdata, *p0, *p1, *p2, *p3;
 
+	if (WARN_ON(r_bytes > sizeof(r)))
+		return;
+
 	if (ecc) {
 		/* load ecc parity bytes into internal 32-bit buffer */
 		load_ecc8(bch, bch->ecc_buf, ecc);
@@ -1285,6 +1287,13 @@
 		 */
 		goto fail;
 
+	if (t > BCH_MAX_T)
+		/*
+		 * we can support larger than 64 bits if necessary, at the
+		 * cost of higher stack usage.
+		 */
+		goto fail;
+
 	/* sanity checks */
 	if ((t < 1) || (m*t >= ((1 << m)-1)))
 		/* invalid t value */
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d5b3a3f..812e59e 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -2794,7 +2794,7 @@
 						copy = end - str;
 					memcpy(str, args, copy);
 					str += len;
-					args += len;
+					args += len + 1;
 				}
 			}
 			if (process)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 706a738..e2ef1c1 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6193,15 +6193,6 @@
 	return PAGE_ALIGN(pages * sizeof(struct page)) >> PAGE_SHIFT;
 }
 
-#ifdef CONFIG_NUMA_BALANCING
-static void pgdat_init_numabalancing(struct pglist_data *pgdat)
-{
-	spin_lock_init(&pgdat->numabalancing_migrate_lock);
-}
-#else
-static void pgdat_init_numabalancing(struct pglist_data *pgdat) {}
-#endif
-
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 static void pgdat_init_split_queue(struct pglist_data *pgdat)
 {
@@ -6226,7 +6217,6 @@
 {
 	pgdat_resize_init(pgdat);
 
-	pgdat_init_numabalancing(pgdat);
 	pgdat_init_split_queue(pgdat);
 	pgdat_init_kcompactd(pgdat);
 
diff --git a/mm/percpu.c b/mm/percpu.c
index a749d4d..4b90682 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1212,6 +1212,7 @@
 {
 	if (!chunk)
 		return;
+	pcpu_mem_free(chunk->md_blocks);
 	pcpu_mem_free(chunk->bound_map);
 	pcpu_mem_free(chunk->alloc_map);
 	pcpu_mem_free(chunk);
diff --git a/net/core/dev.c b/net/core/dev.c
index 82114e1..93243479 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1752,6 +1752,28 @@
 }
 EXPORT_SYMBOL(call_netdevice_notifiers);
 
+/**
+ *	call_netdevice_notifiers_mtu - call all network notifier blocks
+ *	@val: value passed unmodified to notifier function
+ *	@dev: net_device pointer passed unmodified to notifier function
+ *	@arg: additional u32 argument passed to the notifier function
+ *
+ *	Call all network notifier blocks.  Parameters and return value
+ *	are as for raw_notifier_call_chain().
+ */
+static int call_netdevice_notifiers_mtu(unsigned long val,
+					struct net_device *dev, u32 arg)
+{
+	struct netdev_notifier_info_ext info = {
+		.info.dev = dev,
+		.ext.mtu = arg,
+	};
+
+	BUILD_BUG_ON(offsetof(struct netdev_notifier_info_ext, info) != 0);
+
+	return call_netdevice_notifiers_info(val, &info.info);
+}
+
 #ifdef CONFIG_NET_INGRESS
 static DEFINE_STATIC_KEY_FALSE(ingress_needed_key);
 
@@ -7574,14 +7596,16 @@
 	err = __dev_set_mtu(dev, new_mtu);
 
 	if (!err) {
-		err = call_netdevice_notifiers(NETDEV_CHANGEMTU, dev);
+		err = call_netdevice_notifiers_mtu(NETDEV_CHANGEMTU, dev,
+						   orig_mtu);
 		err = notifier_to_errno(err);
 		if (err) {
 			/* setting mtu back and notifying everyone again,
 			 * so that they have a chance to revert changes.
 			 */
 			__dev_set_mtu(dev, orig_mtu);
-			call_netdevice_notifiers(NETDEV_CHANGEMTU, dev);
+			call_netdevice_notifiers_mtu(NETDEV_CHANGEMTU, dev,
+						     new_mtu);
 		}
 	}
 	return err;
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 8c0ed22..6bc4293 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -2995,6 +2995,8 @@
 				  struct genl_info *info,
 				  union devlink_param_value *value)
 {
+	int len;
+
 	if (param->type != DEVLINK_PARAM_TYPE_BOOL &&
 	    !info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])
 		return -EINVAL;
@@ -3010,10 +3012,13 @@
 		value->vu32 = nla_get_u32(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]);
 		break;
 	case DEVLINK_PARAM_TYPE_STRING:
-		if (nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) >
-		    DEVLINK_PARAM_MAX_STRING_VALUE)
+		len = strnlen(nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]),
+			      nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]));
+		if (len == nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) ||
+		    len >= __DEVLINK_PARAM_MAX_STRING_VALUE)
 			return -EINVAL;
-		value->vstr = nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]);
+		strcpy(value->vstr,
+		       nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]));
 		break;
 	case DEVLINK_PARAM_TYPE_BOOL:
 		value->vbool = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA] ?
@@ -3100,7 +3105,10 @@
 		return -EOPNOTSUPP;
 
 	if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) {
-		param_item->driverinit_value = value;
+		if (param->type == DEVLINK_PARAM_TYPE_STRING)
+			strcpy(param_item->driverinit_value.vstr, value.vstr);
+		else
+			param_item->driverinit_value = value;
 		param_item->driverinit_value_valid = true;
 	} else {
 		if (!param->set)
@@ -4540,7 +4548,10 @@
 					      DEVLINK_PARAM_CMODE_DRIVERINIT))
 		return -EOPNOTSUPP;
 
-	*init_val = param_item->driverinit_value;
+	if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING)
+		strcpy(init_val->vstr, param_item->driverinit_value.vstr);
+	else
+		*init_val = param_item->driverinit_value;
 
 	return 0;
 }
@@ -4571,7 +4582,10 @@
 					      DEVLINK_PARAM_CMODE_DRIVERINIT))
 		return -EOPNOTSUPP;
 
-	param_item->driverinit_value = init_val;
+	if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING)
+		strcpy(param_item->driverinit_value.vstr, init_val.vstr);
+	else
+		param_item->driverinit_value = init_val;
 	param_item->driverinit_value_valid = true;
 
 	devlink_param_notify(devlink, param_item, DEVLINK_CMD_PARAM_NEW);
@@ -4604,6 +4618,23 @@
 EXPORT_SYMBOL_GPL(devlink_param_value_changed);
 
 /**
+ *	devlink_param_value_str_fill - Safely fill-up the string preventing
+ *				       from overflow of the preallocated buffer
+ *
+ *	@dst_val: destination devlink_param_value
+ *	@src: source buffer
+ */
+void devlink_param_value_str_fill(union devlink_param_value *dst_val,
+				  const char *src)
+{
+	size_t len;
+
+	len = strlcpy(dst_val->vstr, src, __DEVLINK_PARAM_MAX_STRING_VALUE);
+	WARN_ON(len >= __DEVLINK_PARAM_MAX_STRING_VALUE);
+}
+EXPORT_SYMBOL_GPL(devlink_param_value_str_fill);
+
+/**
  *	devlink_region_create - create a new address region
  *
  *	@devlink: devlink
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index b2c807f..428094b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4452,14 +4452,16 @@
  */
 bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off)
 {
-	if (unlikely(start > skb_headlen(skb)) ||
-	    unlikely((int)start + off > skb_headlen(skb) - 2)) {
-		net_warn_ratelimited("bad partial csum: csum=%u/%u len=%u\n",
-				     start, off, skb_headlen(skb));
+	u32 csum_end = (u32)start + (u32)off + sizeof(__sum16);
+	u32 csum_start = skb_headroom(skb) + (u32)start;
+
+	if (unlikely(csum_start > U16_MAX || csum_end > skb_headlen(skb))) {
+		net_warn_ratelimited("bad partial csum: csum=%u/%u headroom=%u headlen=%u\n",
+				     start, off, skb_headroom(skb), skb_headlen(skb));
 		return false;
 	}
 	skb->ip_summed = CHECKSUM_PARTIAL;
-	skb->csum_start = skb_headroom(skb) + start;
+	skb->csum_start = csum_start;
 	skb->csum_offset = off;
 	skb_set_transport_header(skb, start);
 	return true;
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 2998b0e..0113993 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1243,7 +1243,8 @@
 static int fib_netdev_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-	struct netdev_notifier_changeupper_info *info;
+	struct netdev_notifier_changeupper_info *upper_info = ptr;
+	struct netdev_notifier_info_ext *info_ext = ptr;
 	struct in_device *in_dev;
 	struct net *net = dev_net(dev);
 	unsigned int flags;
@@ -1278,16 +1279,19 @@
 			fib_sync_up(dev, RTNH_F_LINKDOWN);
 		else
 			fib_sync_down_dev(dev, event, false);
-		/* fall through */
+		rt_cache_flush(net);
+		break;
 	case NETDEV_CHANGEMTU:
+		fib_sync_mtu(dev, info_ext->ext.mtu);
 		rt_cache_flush(net);
 		break;
 	case NETDEV_CHANGEUPPER:
-		info = ptr;
+		upper_info = ptr;
 		/* flush all routes if dev is linked to or unlinked from
 		 * an L3 master device (e.g., VRF)
 		 */
-		if (info->upper_dev && netif_is_l3_master(info->upper_dev))
+		if (upper_info->upper_dev &&
+		    netif_is_l3_master(upper_info->upper_dev))
 			fib_disable_ip(dev, NETDEV_DOWN, true);
 		break;
 	}
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index f3c89cc..446204c 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1470,6 +1470,56 @@
 	return NOTIFY_DONE;
 }
 
+/* Update the PMTU of exceptions when:
+ * - the new MTU of the first hop becomes smaller than the PMTU
+ * - the old MTU was the same as the PMTU, and it limited discovery of
+ *   larger MTUs on the path. With that limit raised, we can now
+ *   discover larger MTUs
+ * A special case is locked exceptions, for which the PMTU is smaller
+ * than the minimal accepted PMTU:
+ * - if the new MTU is greater than the PMTU, don't make any change
+ * - otherwise, unlock and set PMTU
+ */
+static void nh_update_mtu(struct fib_nh *nh, u32 new, u32 orig)
+{
+	struct fnhe_hash_bucket *bucket;
+	int i;
+
+	bucket = rcu_dereference_protected(nh->nh_exceptions, 1);
+	if (!bucket)
+		return;
+
+	for (i = 0; i < FNHE_HASH_SIZE; i++) {
+		struct fib_nh_exception *fnhe;
+
+		for (fnhe = rcu_dereference_protected(bucket[i].chain, 1);
+		     fnhe;
+		     fnhe = rcu_dereference_protected(fnhe->fnhe_next, 1)) {
+			if (fnhe->fnhe_mtu_locked) {
+				if (new <= fnhe->fnhe_pmtu) {
+					fnhe->fnhe_pmtu = new;
+					fnhe->fnhe_mtu_locked = false;
+				}
+			} else if (new < fnhe->fnhe_pmtu ||
+				   orig == fnhe->fnhe_pmtu) {
+				fnhe->fnhe_pmtu = new;
+			}
+		}
+	}
+}
+
+void fib_sync_mtu(struct net_device *dev, u32 orig_mtu)
+{
+	unsigned int hash = fib_devindex_hashfn(dev->ifindex);
+	struct hlist_head *head = &fib_info_devhash[hash];
+	struct fib_nh *nh;
+
+	hlist_for_each_entry(nh, head, nh_hash) {
+		if (nh->nh_dev == dev)
+			nh_update_mtu(nh, dev->mtu, orig_mtu);
+	}
+}
+
 /* Event              force Flags           Description
  * NETDEV_CHANGE      0     LINKDOWN        Carrier OFF, not for scope host
  * NETDEV_DOWN        0     LINKDOWN|DEAD   Link down, not for scope host
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index b678466..8501554 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1001,21 +1001,22 @@
 static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
 {
 	struct dst_entry *dst = &rt->dst;
+	u32 old_mtu = ipv4_mtu(dst);
 	struct fib_result res;
 	bool lock = false;
 
 	if (ip_mtu_locked(dst))
 		return;
 
-	if (ipv4_mtu(dst) < mtu)
+	if (old_mtu < mtu)
 		return;
 
 	if (mtu < ip_rt_min_pmtu) {
 		lock = true;
-		mtu = ip_rt_min_pmtu;
+		mtu = min(old_mtu, ip_rt_min_pmtu);
 	}
 
-	if (rt->rt_pmtu == mtu &&
+	if (rt->rt_pmtu == mtu && !lock &&
 	    time_before(jiffies, dst->expires - ip_rt_mtu_expires / 2))
 		return;
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 7d69dd6..c32a4c1 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1627,7 +1627,7 @@
 	*err = error;
 	return NULL;
 }
-EXPORT_SYMBOL_GPL(__skb_recv_udp);
+EXPORT_SYMBOL(__skb_recv_udp);
 
 /*
  * 	This should be easy, if there is something there we
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 5516f55..cbe4617 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -196,6 +196,8 @@
 				*ppcpu_rt = NULL;
 			}
 		}
+
+		free_percpu(f6i->rt6i_pcpu);
 	}
 
 	lwtstate_put(f6i->fib6_nh.nh_lwtstate);
diff --git a/net/rds/send.c b/net/rds/send.c
index 57b3d5a..fe785ee 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -1007,7 +1007,8 @@
 	return ret;
 }
 
-static int rds_send_mprds_hash(struct rds_sock *rs, struct rds_connection *conn)
+static int rds_send_mprds_hash(struct rds_sock *rs,
+			       struct rds_connection *conn, int nonblock)
 {
 	int hash;
 
@@ -1023,10 +1024,16 @@
 		 * used.  But if we are interrupted, we have to use the zero
 		 * c_path in case the connection ends up being non-MP capable.
 		 */
-		if (conn->c_npaths == 0)
+		if (conn->c_npaths == 0) {
+			/* Cannot wait for the connection be made, so just use
+			 * the base c_path.
+			 */
+			if (nonblock)
+				return 0;
 			if (wait_event_interruptible(conn->c_hs_waitq,
 						     conn->c_npaths != 0))
 				hash = 0;
+		}
 		if (conn->c_npaths == 1)
 			hash = 0;
 	}
@@ -1256,7 +1263,7 @@
 	}
 
 	if (conn->c_trans->t_mp_capable)
-		cpath = &conn->c_path[rds_send_mprds_hash(rs, conn)];
+		cpath = &conn->c_path[rds_send_mprds_hash(rs, conn, nonblock)];
 	else
 		cpath = &conn->c_path[0];
 
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index ef95541..a6e6cae 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -302,6 +302,7 @@
 
 	/* calculated RTT cache */
 #define RXRPC_RTT_CACHE_SIZE 32
+	spinlock_t		rtt_input_lock;	/* RTT lock for input routine */
 	ktime_t			rtt_last_req;	/* Time of last RTT request */
 	u64			rtt;		/* Current RTT estimate (in nS) */
 	u64			rtt_sum;	/* Sum of cache contents */
@@ -442,17 +443,17 @@
 	spinlock_t		state_lock;	/* state-change lock */
 	enum rxrpc_conn_cache_state cache_state;
 	enum rxrpc_conn_proto_state state;	/* current state of connection */
-	u32			local_abort;	/* local abort code */
-	u32			remote_abort;	/* remote abort code */
+	u32			abort_code;	/* Abort code of connection abort */
 	int			debug_id;	/* debug ID for printks */
 	atomic_t		serial;		/* packet serial number counter */
 	unsigned int		hi_serial;	/* highest serial number received */
 	u32			security_nonce;	/* response re-use preventer */
-	u16			service_id;	/* Service ID, possibly upgraded */
+	u32			service_id;	/* Service ID, possibly upgraded */
 	u8			size_align;	/* data size alignment (for security) */
 	u8			security_size;	/* security header size */
 	u8			security_ix;	/* security type */
 	u8			out_clientflag;	/* RXRPC_CLIENT_INITIATED if we are client */
+	short			error;		/* Local error code */
 };
 
 static inline bool rxrpc_to_server(const struct rxrpc_skb_priv *sp)
@@ -635,6 +636,8 @@
 	bool			tx_phase;	/* T if transmission phase, F if receive phase */
 	u8			nr_jumbo_bad;	/* Number of jumbo dups/exceeds-windows */
 
+	spinlock_t		input_lock;	/* Lock for packet input to this call */
+
 	/* receive-phase ACK management */
 	u8			ackr_reason;	/* reason to ACK */
 	u16			ackr_skew;	/* skew on packet being ACK'd */
@@ -720,8 +723,6 @@
 void rxrpc_discard_prealloc(struct rxrpc_sock *);
 struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *,
 					   struct rxrpc_sock *,
-					   struct rxrpc_peer *,
-					   struct rxrpc_connection *,
 					   struct sk_buff *);
 void rxrpc_accept_incoming_calls(struct rxrpc_local *);
 struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long,
@@ -891,8 +892,9 @@
 extern struct idr rxrpc_client_conn_ids;
 
 void rxrpc_destroy_client_conn_ids(void);
-int rxrpc_connect_call(struct rxrpc_call *, struct rxrpc_conn_parameters *,
-		       struct sockaddr_rxrpc *, gfp_t);
+int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_call *,
+		       struct rxrpc_conn_parameters *, struct sockaddr_rxrpc *,
+		       gfp_t);
 void rxrpc_expose_client_call(struct rxrpc_call *);
 void rxrpc_disconnect_client_call(struct rxrpc_call *);
 void rxrpc_put_client_conn(struct rxrpc_connection *);
@@ -965,7 +967,7 @@
 /*
  * input.c
  */
-void rxrpc_data_ready(struct sock *);
+int rxrpc_input_packet(struct sock *, struct sk_buff *);
 
 /*
  * insecure.c
@@ -1045,10 +1047,11 @@
  */
 struct rxrpc_peer *rxrpc_lookup_peer_rcu(struct rxrpc_local *,
 					 const struct sockaddr_rxrpc *);
-struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *,
+struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *, struct rxrpc_local *,
 				     struct sockaddr_rxrpc *, gfp_t);
 struct rxrpc_peer *rxrpc_alloc_peer(struct rxrpc_local *, gfp_t);
-void rxrpc_new_incoming_peer(struct rxrpc_local *, struct rxrpc_peer *);
+void rxrpc_new_incoming_peer(struct rxrpc_sock *, struct rxrpc_local *,
+			     struct rxrpc_peer *);
 void rxrpc_destroy_all_peers(struct rxrpc_net *);
 struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *);
 struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *);
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index 9c7f26d..652e314 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -287,7 +287,7 @@
 					  (peer_tail + 1) &
 					  (RXRPC_BACKLOG_MAX - 1));
 
-			rxrpc_new_incoming_peer(local, peer);
+			rxrpc_new_incoming_peer(rx, local, peer);
 		}
 
 		/* Now allocate and set up the connection */
@@ -333,11 +333,11 @@
  */
 struct rxrpc_call *rxrpc_new_incoming_call(struct rxrpc_local *local,
 					   struct rxrpc_sock *rx,
-					   struct rxrpc_peer *peer,
-					   struct rxrpc_connection *conn,
 					   struct sk_buff *skb)
 {
 	struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+	struct rxrpc_connection *conn;
+	struct rxrpc_peer *peer;
 	struct rxrpc_call *call;
 
 	_enter("");
@@ -354,6 +354,13 @@
 		goto out;
 	}
 
+	/* The peer, connection and call may all have sprung into existence due
+	 * to a duplicate packet being handled on another CPU in parallel, so
+	 * we have to recheck the routing.  However, we're now holding
+	 * rx->incoming_lock, so the values should remain stable.
+	 */
+	conn = rxrpc_find_connection_rcu(local, skb, &peer);
+
 	call = rxrpc_alloc_incoming_call(rx, local, peer, conn, skb);
 	if (!call) {
 		skb->mark = RXRPC_SKB_MARK_REJECT_BUSY;
@@ -396,20 +403,22 @@
 
 	case RXRPC_CONN_SERVICE:
 		write_lock(&call->state_lock);
-		if (rx->discard_new_call)
-			call->state = RXRPC_CALL_SERVER_RECV_REQUEST;
-		else
-			call->state = RXRPC_CALL_SERVER_ACCEPTING;
+		if (call->state < RXRPC_CALL_COMPLETE) {
+			if (rx->discard_new_call)
+				call->state = RXRPC_CALL_SERVER_RECV_REQUEST;
+			else
+				call->state = RXRPC_CALL_SERVER_ACCEPTING;
+		}
 		write_unlock(&call->state_lock);
 		break;
 
 	case RXRPC_CONN_REMOTELY_ABORTED:
 		rxrpc_set_call_completion(call, RXRPC_CALL_REMOTELY_ABORTED,
-					  conn->remote_abort, -ECONNABORTED);
+					  conn->abort_code, conn->error);
 		break;
 	case RXRPC_CONN_LOCALLY_ABORTED:
 		rxrpc_abort_call("CON", call, sp->hdr.seq,
-				 conn->local_abort, -ECONNABORTED);
+				 conn->abort_code, conn->error);
 		break;
 	default:
 		BUG();
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index 799f75b..8f1a8f8 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -138,6 +138,7 @@
 	init_waitqueue_head(&call->waitq);
 	spin_lock_init(&call->lock);
 	spin_lock_init(&call->notify_lock);
+	spin_lock_init(&call->input_lock);
 	rwlock_init(&call->state_lock);
 	atomic_set(&call->usage, 1);
 	call->debug_id = debug_id;
@@ -287,7 +288,7 @@
 	/* Set up or get a connection record and set the protocol parameters,
 	 * including channel number and call ID.
 	 */
-	ret = rxrpc_connect_call(call, cp, srx, gfp);
+	ret = rxrpc_connect_call(rx, call, cp, srx, gfp);
 	if (ret < 0)
 		goto error;
 
@@ -339,7 +340,7 @@
 	/* Set up or get a connection record and set the protocol parameters,
 	 * including channel number and call ID.
 	 */
-	ret = rxrpc_connect_call(call, cp, srx, gfp);
+	ret = rxrpc_connect_call(rx, call, cp, srx, gfp);
 	if (ret < 0)
 		goto error;
 
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index 8acf74f..521189f 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -276,7 +276,8 @@
  * If we return with a connection, the call will be on its waiting list.  It's
  * left to the caller to assign a channel and wake up the call.
  */
-static int rxrpc_get_client_conn(struct rxrpc_call *call,
+static int rxrpc_get_client_conn(struct rxrpc_sock *rx,
+				 struct rxrpc_call *call,
 				 struct rxrpc_conn_parameters *cp,
 				 struct sockaddr_rxrpc *srx,
 				 gfp_t gfp)
@@ -289,7 +290,7 @@
 
 	_enter("{%d,%lx},", call->debug_id, call->user_call_ID);
 
-	cp->peer = rxrpc_lookup_peer(cp->local, srx, gfp);
+	cp->peer = rxrpc_lookup_peer(rx, cp->local, srx, gfp);
 	if (!cp->peer)
 		goto error;
 
@@ -683,7 +684,8 @@
  * find a connection for a call
  * - called in process context with IRQs enabled
  */
-int rxrpc_connect_call(struct rxrpc_call *call,
+int rxrpc_connect_call(struct rxrpc_sock *rx,
+		       struct rxrpc_call *call,
 		       struct rxrpc_conn_parameters *cp,
 		       struct sockaddr_rxrpc *srx,
 		       gfp_t gfp)
@@ -696,7 +698,7 @@
 	rxrpc_discard_expired_client_conns(&rxnet->client_conn_reaper);
 	rxrpc_cull_active_client_conns(rxnet);
 
-	ret = rxrpc_get_client_conn(call, cp, srx, gfp);
+	ret = rxrpc_get_client_conn(rx, call, cp, srx, gfp);
 	if (ret < 0)
 		goto out;
 
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c
index 6df56ce..b6fca8e 100644
--- a/net/rxrpc/conn_event.c
+++ b/net/rxrpc/conn_event.c
@@ -126,7 +126,7 @@
 
 	switch (chan->last_type) {
 	case RXRPC_PACKET_TYPE_ABORT:
-		_proto("Tx ABORT %%%u { %d } [re]", serial, conn->local_abort);
+		_proto("Tx ABORT %%%u { %d } [re]", serial, conn->abort_code);
 		break;
 	case RXRPC_PACKET_TYPE_ACK:
 		trace_rxrpc_tx_ack(chan->call_debug_id, serial,
@@ -153,13 +153,12 @@
  * pass a connection-level abort onto all calls on that connection
  */
 static void rxrpc_abort_calls(struct rxrpc_connection *conn,
-			      enum rxrpc_call_completion compl,
-			      u32 abort_code, int error)
+			      enum rxrpc_call_completion compl)
 {
 	struct rxrpc_call *call;
 	int i;
 
-	_enter("{%d},%x", conn->debug_id, abort_code);
+	_enter("{%d},%x", conn->debug_id, conn->abort_code);
 
 	spin_lock(&conn->channel_lock);
 
@@ -172,9 +171,11 @@
 				trace_rxrpc_abort(call->debug_id,
 						  "CON", call->cid,
 						  call->call_id, 0,
-						  abort_code, error);
+						  conn->abort_code,
+						  conn->error);
 			if (rxrpc_set_call_completion(call, compl,
-						      abort_code, error))
+						      conn->abort_code,
+						      conn->error))
 				rxrpc_notify_socket(call);
 		}
 	}
@@ -207,10 +208,12 @@
 		return 0;
 	}
 
+	conn->error = error;
+	conn->abort_code = abort_code;
 	conn->state = RXRPC_CONN_LOCALLY_ABORTED;
 	spin_unlock_bh(&conn->state_lock);
 
-	rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED, abort_code, error);
+	rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED);
 
 	msg.msg_name	= &conn->params.peer->srx.transport;
 	msg.msg_namelen	= conn->params.peer->srx.transport_len;
@@ -229,7 +232,7 @@
 	whdr._rsvd	= 0;
 	whdr.serviceId	= htons(conn->service_id);
 
-	word		= htonl(conn->local_abort);
+	word		= htonl(conn->abort_code);
 
 	iov[0].iov_base	= &whdr;
 	iov[0].iov_len	= sizeof(whdr);
@@ -240,7 +243,7 @@
 
 	serial = atomic_inc_return(&conn->serial);
 	whdr.serial = htonl(serial);
-	_proto("Tx CONN ABORT %%%u { %d }", serial, conn->local_abort);
+	_proto("Tx CONN ABORT %%%u { %d }", serial, conn->abort_code);
 
 	ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len);
 	if (ret < 0) {
@@ -315,9 +318,10 @@
 		abort_code = ntohl(wtmp);
 		_proto("Rx ABORT %%%u { ac=%d }", sp->hdr.serial, abort_code);
 
+		conn->error = -ECONNABORTED;
+		conn->abort_code = abort_code;
 		conn->state = RXRPC_CONN_REMOTELY_ABORTED;
-		rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED,
-				  abort_code, -ECONNABORTED);
+		rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED);
 		return -ECONNABORTED;
 
 	case RXRPC_PACKET_TYPE_CHALLENGE:
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 800f5b8..570b49d 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -216,10 +216,11 @@
 /*
  * Apply a hard ACK by advancing the Tx window.
  */
-static void rxrpc_rotate_tx_window(struct rxrpc_call *call, rxrpc_seq_t to,
+static bool rxrpc_rotate_tx_window(struct rxrpc_call *call, rxrpc_seq_t to,
 				   struct rxrpc_ack_summary *summary)
 {
 	struct sk_buff *skb, *list = NULL;
+	bool rot_last = false;
 	int ix;
 	u8 annotation;
 
@@ -243,15 +244,17 @@
 		skb->next = list;
 		list = skb;
 
-		if (annotation & RXRPC_TX_ANNO_LAST)
+		if (annotation & RXRPC_TX_ANNO_LAST) {
 			set_bit(RXRPC_CALL_TX_LAST, &call->flags);
+			rot_last = true;
+		}
 		if ((annotation & RXRPC_TX_ANNO_MASK) != RXRPC_TX_ANNO_ACK)
 			summary->nr_rot_new_acks++;
 	}
 
 	spin_unlock(&call->lock);
 
-	trace_rxrpc_transmit(call, (test_bit(RXRPC_CALL_TX_LAST, &call->flags) ?
+	trace_rxrpc_transmit(call, (rot_last ?
 				    rxrpc_transmit_rotate_last :
 				    rxrpc_transmit_rotate));
 	wake_up(&call->waitq);
@@ -262,6 +265,8 @@
 		skb->next = NULL;
 		rxrpc_free_skb(skb, rxrpc_skb_tx_freed);
 	}
+
+	return rot_last;
 }
 
 /*
@@ -273,23 +278,26 @@
 static bool rxrpc_end_tx_phase(struct rxrpc_call *call, bool reply_begun,
 			       const char *abort_why)
 {
+	unsigned int state;
 
 	ASSERT(test_bit(RXRPC_CALL_TX_LAST, &call->flags));
 
 	write_lock(&call->state_lock);
 
-	switch (call->state) {
+	state = call->state;
+	switch (state) {
 	case RXRPC_CALL_CLIENT_SEND_REQUEST:
 	case RXRPC_CALL_CLIENT_AWAIT_REPLY:
 		if (reply_begun)
-			call->state = RXRPC_CALL_CLIENT_RECV_REPLY;
+			call->state = state = RXRPC_CALL_CLIENT_RECV_REPLY;
 		else
-			call->state = RXRPC_CALL_CLIENT_AWAIT_REPLY;
+			call->state = state = RXRPC_CALL_CLIENT_AWAIT_REPLY;
 		break;
 
 	case RXRPC_CALL_SERVER_AWAIT_ACK:
 		__rxrpc_call_completed(call);
 		rxrpc_notify_socket(call);
+		state = call->state;
 		break;
 
 	default:
@@ -297,11 +305,10 @@
 	}
 
 	write_unlock(&call->state_lock);
-	if (call->state == RXRPC_CALL_CLIENT_AWAIT_REPLY) {
+	if (state == RXRPC_CALL_CLIENT_AWAIT_REPLY)
 		trace_rxrpc_transmit(call, rxrpc_transmit_await_reply);
-	} else {
+	else
 		trace_rxrpc_transmit(call, rxrpc_transmit_end);
-	}
 	_leave(" = ok");
 	return true;
 
@@ -332,11 +339,11 @@
 		trace_rxrpc_timer(call, rxrpc_timer_init_for_reply, now);
 	}
 
-	if (!test_bit(RXRPC_CALL_TX_LAST, &call->flags))
-		rxrpc_rotate_tx_window(call, top, &summary);
 	if (!test_bit(RXRPC_CALL_TX_LAST, &call->flags)) {
-		rxrpc_proto_abort("TXL", call, top);
-		return false;
+		if (!rxrpc_rotate_tx_window(call, top, &summary)) {
+			rxrpc_proto_abort("TXL", call, top);
+			return false;
+		}
 	}
 	if (!rxrpc_end_tx_phase(call, true, "ETD"))
 		return false;
@@ -452,13 +459,15 @@
 		}
 	}
 
+	spin_lock(&call->input_lock);
+
 	/* Received data implicitly ACKs all of the request packets we sent
 	 * when we're acting as a client.
 	 */
 	if ((state == RXRPC_CALL_CLIENT_SEND_REQUEST ||
 	     state == RXRPC_CALL_CLIENT_AWAIT_REPLY) &&
 	    !rxrpc_receiving_reply(call))
-		return;
+		goto unlock;
 
 	call->ackr_prev_seq = seq;
 
@@ -488,12 +497,16 @@
 
 	if (flags & RXRPC_LAST_PACKET) {
 		if (test_bit(RXRPC_CALL_RX_LAST, &call->flags) &&
-		    seq != call->rx_top)
-			return rxrpc_proto_abort("LSN", call, seq);
+		    seq != call->rx_top) {
+			rxrpc_proto_abort("LSN", call, seq);
+			goto unlock;
+		}
 	} else {
 		if (test_bit(RXRPC_CALL_RX_LAST, &call->flags) &&
-		    after_eq(seq, call->rx_top))
-			return rxrpc_proto_abort("LSA", call, seq);
+		    after_eq(seq, call->rx_top)) {
+			rxrpc_proto_abort("LSA", call, seq);
+			goto unlock;
+		}
 	}
 
 	trace_rxrpc_rx_data(call->debug_id, seq, serial, flags, annotation);
@@ -560,8 +573,10 @@
 skip:
 	offset += len;
 	if (flags & RXRPC_JUMBO_PACKET) {
-		if (skb_copy_bits(skb, offset, &flags, 1) < 0)
-			return rxrpc_proto_abort("XJF", call, seq);
+		if (skb_copy_bits(skb, offset, &flags, 1) < 0) {
+			rxrpc_proto_abort("XJF", call, seq);
+			goto unlock;
+		}
 		offset += sizeof(struct rxrpc_jumbo_header);
 		seq++;
 		serial++;
@@ -601,6 +616,9 @@
 		trace_rxrpc_notify_socket(call->debug_id, serial);
 		rxrpc_notify_socket(call);
 	}
+
+unlock:
+	spin_unlock(&call->input_lock);
 	_leave(" [queued]");
 }
 
@@ -687,15 +705,14 @@
 
 	ping_time = call->ping_time;
 	smp_rmb();
-	ping_serial = call->ping_serial;
+	ping_serial = READ_ONCE(call->ping_serial);
 
 	if (orig_serial == call->acks_lost_ping)
 		rxrpc_input_check_for_lost_ack(call);
 
-	if (!test_bit(RXRPC_CALL_PINGING, &call->flags) ||
-	    before(orig_serial, ping_serial))
+	if (before(orig_serial, ping_serial) ||
+	    !test_and_clear_bit(RXRPC_CALL_PINGING, &call->flags))
 		return;
-	clear_bit(RXRPC_CALL_PINGING, &call->flags);
 	if (after(orig_serial, ping_serial))
 		return;
 
@@ -861,15 +878,32 @@
 				  rxrpc_propose_ack_respond_to_ack);
 	}
 
-	ioffset = offset + nr_acks + 3;
-	if (skb->len >= ioffset + sizeof(buf.info)) {
-		if (skb_copy_bits(skb, ioffset, &buf.info, sizeof(buf.info)) < 0)
-			return rxrpc_proto_abort("XAI", call, 0);
-		rxrpc_input_ackinfo(call, skb, &buf.info);
-	}
+	/* Discard any out-of-order or duplicate ACKs. */
+	if (before_eq(sp->hdr.serial, call->acks_latest))
+		return;
 
-	if (first_soft_ack == 0)
-		return rxrpc_proto_abort("AK0", call, 0);
+	buf.info.rxMTU = 0;
+	ioffset = offset + nr_acks + 3;
+	if (skb->len >= ioffset + sizeof(buf.info) &&
+	    skb_copy_bits(skb, ioffset, &buf.info, sizeof(buf.info)) < 0)
+		return rxrpc_proto_abort("XAI", call, 0);
+
+	spin_lock(&call->input_lock);
+
+	/* Discard any out-of-order or duplicate ACKs. */
+	if (before_eq(sp->hdr.serial, call->acks_latest))
+		goto out;
+	call->acks_latest_ts = skb->tstamp;
+	call->acks_latest = sp->hdr.serial;
+
+	/* Parse rwind and mtu sizes if provided. */
+	if (buf.info.rxMTU)
+		rxrpc_input_ackinfo(call, skb, &buf.info);
+
+	if (first_soft_ack == 0) {
+		rxrpc_proto_abort("AK0", call, 0);
+		goto out;
+	}
 
 	/* Ignore ACKs unless we are or have just been transmitting. */
 	switch (READ_ONCE(call->state)) {
@@ -879,37 +913,33 @@
 	case RXRPC_CALL_SERVER_AWAIT_ACK:
 		break;
 	default:
-		return;
+		goto out;
 	}
 
-	/* Discard any out-of-order or duplicate ACKs. */
-	if (before_eq(sp->hdr.serial, call->acks_latest)) {
-		_debug("discard ACK %d <= %d",
-		       sp->hdr.serial, call->acks_latest);
-		return;
-	}
-	call->acks_latest_ts = skb->tstamp;
-	call->acks_latest = sp->hdr.serial;
-
 	if (before(hard_ack, call->tx_hard_ack) ||
-	    after(hard_ack, call->tx_top))
-		return rxrpc_proto_abort("AKW", call, 0);
-	if (nr_acks > call->tx_top - hard_ack)
-		return rxrpc_proto_abort("AKN", call, 0);
-
-	if (after(hard_ack, call->tx_hard_ack))
-		rxrpc_rotate_tx_window(call, hard_ack, &summary);
-
-	if (nr_acks > 0) {
-		if (skb_copy_bits(skb, offset, buf.acks, nr_acks) < 0)
-			return rxrpc_proto_abort("XSA", call, 0);
-		rxrpc_input_soft_acks(call, buf.acks, first_soft_ack, nr_acks,
-				      &summary);
+	    after(hard_ack, call->tx_top)) {
+		rxrpc_proto_abort("AKW", call, 0);
+		goto out;
+	}
+	if (nr_acks > call->tx_top - hard_ack) {
+		rxrpc_proto_abort("AKN", call, 0);
+		goto out;
 	}
 
-	if (test_bit(RXRPC_CALL_TX_LAST, &call->flags)) {
-		rxrpc_end_tx_phase(call, false, "ETA");
-		return;
+	if (after(hard_ack, call->tx_hard_ack)) {
+		if (rxrpc_rotate_tx_window(call, hard_ack, &summary)) {
+			rxrpc_end_tx_phase(call, false, "ETA");
+			goto out;
+		}
+	}
+
+	if (nr_acks > 0) {
+		if (skb_copy_bits(skb, offset, buf.acks, nr_acks) < 0) {
+			rxrpc_proto_abort("XSA", call, 0);
+			goto out;
+		}
+		rxrpc_input_soft_acks(call, buf.acks, first_soft_ack, nr_acks,
+				      &summary);
 	}
 
 	if (call->rxtx_annotations[call->tx_top & RXRPC_RXTX_BUFF_MASK] &
@@ -920,7 +950,9 @@
 				  false, true,
 				  rxrpc_propose_ack_ping_for_lost_reply);
 
-	return rxrpc_congestion_management(call, skb, &summary, acked_serial);
+	rxrpc_congestion_management(call, skb, &summary, acked_serial);
+out:
+	spin_unlock(&call->input_lock);
 }
 
 /*
@@ -933,9 +965,12 @@
 
 	_proto("Rx ACKALL %%%u", sp->hdr.serial);
 
-	rxrpc_rotate_tx_window(call, call->tx_top, &summary);
-	if (test_bit(RXRPC_CALL_TX_LAST, &call->flags))
+	spin_lock(&call->input_lock);
+
+	if (rxrpc_rotate_tx_window(call, call->tx_top, &summary))
 		rxrpc_end_tx_phase(call, false, "ETL");
+
+	spin_unlock(&call->input_lock);
 }
 
 /*
@@ -1018,18 +1053,19 @@
 }
 
 /*
- * Handle a new call on a channel implicitly completing the preceding call on
- * that channel.
+ * Handle a new service call on a channel implicitly completing the preceding
+ * call on that channel.  This does not apply to client conns.
  *
  * TODO: If callNumber > call_id + 1, renegotiate security.
  */
-static void rxrpc_input_implicit_end_call(struct rxrpc_connection *conn,
+static void rxrpc_input_implicit_end_call(struct rxrpc_sock *rx,
+					  struct rxrpc_connection *conn,
 					  struct rxrpc_call *call)
 {
 	switch (READ_ONCE(call->state)) {
 	case RXRPC_CALL_SERVER_AWAIT_ACK:
 		rxrpc_call_completed(call);
-		break;
+		/* Fall through */
 	case RXRPC_CALL_COMPLETE:
 		break;
 	default:
@@ -1037,11 +1073,13 @@
 			set_bit(RXRPC_CALL_EV_ABORT, &call->events);
 			rxrpc_queue_call(call);
 		}
+		trace_rxrpc_improper_term(call);
 		break;
 	}
 
-	trace_rxrpc_improper_term(call);
+	spin_lock(&rx->incoming_lock);
 	__rxrpc_disconnect_call(conn, call);
+	spin_unlock(&rx->incoming_lock);
 	rxrpc_notify_socket(call);
 }
 
@@ -1120,8 +1158,10 @@
  * The socket is locked by the caller and this prevents the socket from being
  * shut down and the local endpoint from going away, thus sk_user_data will not
  * be cleared until this function returns.
+ *
+ * Called with the RCU read lock held from the IP layer via UDP.
  */
-void rxrpc_data_ready(struct sock *udp_sk)
+int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb)
 {
 	struct rxrpc_connection *conn;
 	struct rxrpc_channel *chan;
@@ -1130,38 +1170,17 @@
 	struct rxrpc_local *local = udp_sk->sk_user_data;
 	struct rxrpc_peer *peer = NULL;
 	struct rxrpc_sock *rx = NULL;
-	struct sk_buff *skb;
 	unsigned int channel;
-	int ret, skew = 0;
+	int skew = 0;
 
 	_enter("%p", udp_sk);
 
-	ASSERT(!irqs_disabled());
-
-	skb = skb_recv_udp(udp_sk, 0, 1, &ret);
-	if (!skb) {
-		if (ret == -EAGAIN)
-			return;
-		_debug("UDP socket error %d", ret);
-		return;
-	}
-
 	if (skb->tstamp == 0)
 		skb->tstamp = ktime_get_real();
 
 	rxrpc_new_skb(skb, rxrpc_skb_rx_received);
 
-	_net("recv skb %p", skb);
-
-	/* we'll probably need to checksum it (didn't call sock_recvmsg) */
-	if (skb_checksum_complete(skb)) {
-		rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
-		__UDP_INC_STATS(&init_net, UDP_MIB_INERRORS, 0);
-		_leave(" [CSUM failed]");
-		return;
-	}
-
-	__UDP_INC_STATS(&init_net, UDP_MIB_INDATAGRAMS, 0);
+	skb_pull(skb, sizeof(struct udphdr));
 
 	/* The UDP protocol already released all skb resources;
 	 * we are free to add our own data there.
@@ -1176,11 +1195,13 @@
 		static int lose;
 		if ((lose++ & 7) == 7) {
 			trace_rxrpc_rx_lose(sp);
-			rxrpc_lose_skb(skb, rxrpc_skb_rx_lost);
-			return;
+			rxrpc_free_skb(skb, rxrpc_skb_rx_lost);
+			return 0;
 		}
 	}
 
+	if (skb->tstamp == 0)
+		skb->tstamp = ktime_get_real();
 	trace_rxrpc_rx_packet(sp);
 
 	switch (sp->hdr.type) {
@@ -1234,8 +1255,6 @@
 	if (sp->hdr.serviceId == 0)
 		goto bad_message;
 
-	rcu_read_lock();
-
 	if (rxrpc_to_server(sp)) {
 		/* Weed out packets to services we're not offering.  Packets
 		 * that would begin a call are explicitly rejected and the rest
@@ -1247,7 +1266,7 @@
 			if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA &&
 			    sp->hdr.seq == 1)
 				goto unsupported_service;
-			goto discard_unlock;
+			goto discard;
 		}
 	}
 
@@ -1257,17 +1276,23 @@
 			goto wrong_security;
 
 		if (sp->hdr.serviceId != conn->service_id) {
-			if (!test_bit(RXRPC_CONN_PROBING_FOR_UPGRADE, &conn->flags) ||
-			    conn->service_id != conn->params.service_id)
+			int old_id;
+
+			if (!test_bit(RXRPC_CONN_PROBING_FOR_UPGRADE, &conn->flags))
 				goto reupgrade;
-			conn->service_id = sp->hdr.serviceId;
+			old_id = cmpxchg(&conn->service_id, conn->params.service_id,
+					 sp->hdr.serviceId);
+
+			if (old_id != conn->params.service_id &&
+			    old_id != sp->hdr.serviceId)
+				goto reupgrade;
 		}
 
 		if (sp->hdr.callNumber == 0) {
 			/* Connection-level packet */
 			_debug("CONN %p {%d}", conn, conn->debug_id);
 			rxrpc_post_packet_to_conn(conn, skb);
-			goto out_unlock;
+			goto out;
 		}
 
 		/* Note the serial number skew here */
@@ -1286,19 +1311,19 @@
 
 		/* Ignore really old calls */
 		if (sp->hdr.callNumber < chan->last_call)
-			goto discard_unlock;
+			goto discard;
 
 		if (sp->hdr.callNumber == chan->last_call) {
 			if (chan->call ||
 			    sp->hdr.type == RXRPC_PACKET_TYPE_ABORT)
-				goto discard_unlock;
+				goto discard;
 
 			/* For the previous service call, if completed
 			 * successfully, we discard all further packets.
 			 */
 			if (rxrpc_conn_is_service(conn) &&
 			    chan->last_type == RXRPC_PACKET_TYPE_ACK)
-				goto discard_unlock;
+				goto discard;
 
 			/* But otherwise we need to retransmit the final packet
 			 * from data cached in the connection record.
@@ -1309,18 +1334,16 @@
 						    sp->hdr.serial,
 						    sp->hdr.flags, 0);
 			rxrpc_post_packet_to_conn(conn, skb);
-			goto out_unlock;
+			goto out;
 		}
 
 		call = rcu_dereference(chan->call);
 
 		if (sp->hdr.callNumber > chan->call_id) {
-			if (rxrpc_to_client(sp)) {
-				rcu_read_unlock();
+			if (rxrpc_to_client(sp))
 				goto reject_packet;
-			}
 			if (call)
-				rxrpc_input_implicit_end_call(conn, call);
+				rxrpc_input_implicit_end_call(rx, conn, call);
 			call = NULL;
 		}
 
@@ -1337,55 +1360,42 @@
 	if (!call || atomic_read(&call->usage) == 0) {
 		if (rxrpc_to_client(sp) ||
 		    sp->hdr.type != RXRPC_PACKET_TYPE_DATA)
-			goto bad_message_unlock;
+			goto bad_message;
 		if (sp->hdr.seq != 1)
-			goto discard_unlock;
-		call = rxrpc_new_incoming_call(local, rx, peer, conn, skb);
-		if (!call) {
-			rcu_read_unlock();
+			goto discard;
+		call = rxrpc_new_incoming_call(local, rx, skb);
+		if (!call)
 			goto reject_packet;
-		}
 		rxrpc_send_ping(call, skb, skew);
 		mutex_unlock(&call->user_mutex);
 	}
 
 	rxrpc_input_call_packet(call, skb, skew);
-	goto discard_unlock;
+	goto discard;
 
-discard_unlock:
-	rcu_read_unlock();
 discard:
 	rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
 out:
 	trace_rxrpc_rx_done(0, 0);
-	return;
-
-out_unlock:
-	rcu_read_unlock();
-	goto out;
+	return 0;
 
 wrong_security:
-	rcu_read_unlock();
 	trace_rxrpc_abort(0, "SEC", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,
 			  RXKADINCONSISTENCY, EBADMSG);
 	skb->priority = RXKADINCONSISTENCY;
 	goto post_abort;
 
 unsupported_service:
-	rcu_read_unlock();
 	trace_rxrpc_abort(0, "INV", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,
 			  RX_INVALID_OPERATION, EOPNOTSUPP);
 	skb->priority = RX_INVALID_OPERATION;
 	goto post_abort;
 
 reupgrade:
-	rcu_read_unlock();
 	trace_rxrpc_abort(0, "UPG", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,
 			  RX_PROTOCOL_ERROR, EBADMSG);
 	goto protocol_error;
 
-bad_message_unlock:
-	rcu_read_unlock();
 bad_message:
 	trace_rxrpc_abort(0, "BAD", sp->hdr.cid, sp->hdr.callNumber, sp->hdr.seq,
 			  RX_PROTOCOL_ERROR, EBADMSG);
@@ -1397,4 +1407,5 @@
 	trace_rxrpc_rx_done(skb->mark, skb->priority);
 	rxrpc_reject_packet(local, skb);
 	_leave(" [badmsg]");
+	return 0;
 }
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index 94d234e..cad0691 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -19,6 +19,7 @@
 #include <linux/ip.h>
 #include <linux/hashtable.h>
 #include <net/sock.h>
+#include <net/udp.h>
 #include <net/af_rxrpc.h>
 #include "ar-internal.h"
 
@@ -108,7 +109,7 @@
  */
 static int rxrpc_open_socket(struct rxrpc_local *local, struct net *net)
 {
-	struct sock *sock;
+	struct sock *usk;
 	int ret, opt;
 
 	_enter("%p{%d,%d}",
@@ -122,6 +123,28 @@
 		return ret;
 	}
 
+	/* set the socket up */
+	usk = local->socket->sk;
+	inet_sk(usk)->mc_loop = 0;
+
+	/* Enable CHECKSUM_UNNECESSARY to CHECKSUM_COMPLETE conversion */
+	inet_inc_convert_csum(usk);
+
+	rcu_assign_sk_user_data(usk, local);
+
+	udp_sk(usk)->encap_type = UDP_ENCAP_RXRPC;
+	udp_sk(usk)->encap_rcv = rxrpc_input_packet;
+	udp_sk(usk)->encap_destroy = NULL;
+	udp_sk(usk)->gro_receive = NULL;
+	udp_sk(usk)->gro_complete = NULL;
+
+	udp_encap_enable();
+#if IS_ENABLED(CONFIG_IPV6)
+	if (local->srx.transport.family == AF_INET6)
+		udpv6_encap_enable();
+#endif
+	usk->sk_error_report = rxrpc_error_report;
+
 	/* if a local address was supplied then bind it */
 	if (local->srx.transport_len > sizeof(sa_family_t)) {
 		_debug("bind");
@@ -191,11 +214,6 @@
 		BUG();
 	}
 
-	/* set the socket up */
-	sock = local->socket->sk;
-	sock->sk_user_data	= local;
-	sock->sk_data_ready	= rxrpc_data_ready;
-	sock->sk_error_report	= rxrpc_error_report;
 	_leave(" = 0");
 	return 0;
 
diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c
index f3e6fc6..05b51bd 100644
--- a/net/rxrpc/peer_event.c
+++ b/net/rxrpc/peer_event.c
@@ -301,6 +301,8 @@
 	if (rtt < 0)
 		return;
 
+	spin_lock(&peer->rtt_input_lock);
+
 	/* Replace the oldest datum in the RTT buffer */
 	sum -= peer->rtt_cache[cursor];
 	sum += rtt;
@@ -312,6 +314,8 @@
 		peer->rtt_usage = usage;
 	}
 
+	spin_unlock(&peer->rtt_input_lock);
+
 	/* Now recalculate the average */
 	if (usage == RXRPC_RTT_CACHE_SIZE) {
 		avg = sum / RXRPC_RTT_CACHE_SIZE;
@@ -320,6 +324,7 @@
 		do_div(avg, usage);
 	}
 
+	/* Don't need to update this under lock */
 	peer->rtt = avg;
 	trace_rxrpc_rtt_rx(call, why, send_serial, resp_serial, rtt,
 			   usage, avg);
diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c
index 01a9feb..5691b7d 100644
--- a/net/rxrpc/peer_object.c
+++ b/net/rxrpc/peer_object.c
@@ -153,8 +153,10 @@
  * assess the MTU size for the network interface through which this peer is
  * reached
  */
-static void rxrpc_assess_MTU_size(struct rxrpc_peer *peer)
+static void rxrpc_assess_MTU_size(struct rxrpc_sock *rx,
+				  struct rxrpc_peer *peer)
 {
+	struct net *net = sock_net(&rx->sk);
 	struct dst_entry *dst;
 	struct rtable *rt;
 	struct flowi fl;
@@ -169,7 +171,7 @@
 	switch (peer->srx.transport.family) {
 	case AF_INET:
 		rt = ip_route_output_ports(
-			&init_net, fl4, NULL,
+			net, fl4, NULL,
 			peer->srx.transport.sin.sin_addr.s_addr, 0,
 			htons(7000), htons(7001), IPPROTO_UDP, 0, 0);
 		if (IS_ERR(rt)) {
@@ -188,7 +190,7 @@
 		       sizeof(struct in6_addr));
 		fl6->fl6_dport = htons(7001);
 		fl6->fl6_sport = htons(7000);
-		dst = ip6_route_output(&init_net, NULL, fl6);
+		dst = ip6_route_output(net, NULL, fl6);
 		if (dst->error) {
 			_leave(" [route err %d]", dst->error);
 			return;
@@ -223,6 +225,7 @@
 		peer->service_conns = RB_ROOT;
 		seqlock_init(&peer->service_conn_lock);
 		spin_lock_init(&peer->lock);
+		spin_lock_init(&peer->rtt_input_lock);
 		peer->debug_id = atomic_inc_return(&rxrpc_debug_id);
 
 		if (RXRPC_TX_SMSS > 2190)
@@ -240,10 +243,11 @@
 /*
  * Initialise peer record.
  */
-static void rxrpc_init_peer(struct rxrpc_peer *peer, unsigned long hash_key)
+static void rxrpc_init_peer(struct rxrpc_sock *rx, struct rxrpc_peer *peer,
+			    unsigned long hash_key)
 {
 	peer->hash_key = hash_key;
-	rxrpc_assess_MTU_size(peer);
+	rxrpc_assess_MTU_size(rx, peer);
 	peer->mtu = peer->if_mtu;
 	peer->rtt_last_req = ktime_get_real();
 
@@ -275,7 +279,8 @@
 /*
  * Set up a new peer.
  */
-static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_local *local,
+static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_sock *rx,
+					    struct rxrpc_local *local,
 					    struct sockaddr_rxrpc *srx,
 					    unsigned long hash_key,
 					    gfp_t gfp)
@@ -287,7 +292,7 @@
 	peer = rxrpc_alloc_peer(local, gfp);
 	if (peer) {
 		memcpy(&peer->srx, srx, sizeof(*srx));
-		rxrpc_init_peer(peer, hash_key);
+		rxrpc_init_peer(rx, peer, hash_key);
 	}
 
 	_leave(" = %p", peer);
@@ -299,14 +304,15 @@
  * since we've already done a search in the list from the non-reentrant context
  * (the data_ready handler) that is the only place we can add new peers.
  */
-void rxrpc_new_incoming_peer(struct rxrpc_local *local, struct rxrpc_peer *peer)
+void rxrpc_new_incoming_peer(struct rxrpc_sock *rx, struct rxrpc_local *local,
+			     struct rxrpc_peer *peer)
 {
 	struct rxrpc_net *rxnet = local->rxnet;
 	unsigned long hash_key;
 
 	hash_key = rxrpc_peer_hash_key(local, &peer->srx);
 	peer->local = local;
-	rxrpc_init_peer(peer, hash_key);
+	rxrpc_init_peer(rx, peer, hash_key);
 
 	spin_lock(&rxnet->peer_hash_lock);
 	hash_add_rcu(rxnet->peer_hash, &peer->hash_link, hash_key);
@@ -317,7 +323,8 @@
 /*
  * obtain a remote transport endpoint for the specified address
  */
-struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_local *local,
+struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *rx,
+				     struct rxrpc_local *local,
 				     struct sockaddr_rxrpc *srx, gfp_t gfp)
 {
 	struct rxrpc_peer *peer, *candidate;
@@ -337,7 +344,7 @@
 		/* The peer is not yet present in hash - create a candidate
 		 * for a new record and then redo the search.
 		 */
-		candidate = rxrpc_create_peer(local, srx, hash_key, gfp);
+		candidate = rxrpc_create_peer(rx, local, srx, hash_key, gfp);
 		if (!candidate) {
 			_leave(" = NULL [nomem]");
 			return NULL;
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index f218ccf1..b2c3406 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -398,6 +398,7 @@
 	rcu_assign_pointer(tp_c->hlist, root_ht);
 	root_ht->tp_c = tp_c;
 
+	root_ht->refcnt++;
 	rcu_assign_pointer(tp->root, root_ht);
 	tp->data = tp_c;
 	return 0;
@@ -610,7 +611,7 @@
 	struct tc_u_hnode __rcu **hn;
 	struct tc_u_hnode *phn;
 
-	WARN_ON(ht->refcnt);
+	WARN_ON(--ht->refcnt);
 
 	u32_clear_hnode(tp, ht, extack);
 
@@ -649,7 +650,7 @@
 
 	WARN_ON(root_ht == NULL);
 
-	if (root_ht && --root_ht->refcnt == 0)
+	if (root_ht && --root_ht->refcnt == 1)
 		u32_destroy_hnode(tp, root_ht, extack);
 
 	if (--tp_c->refcnt == 0) {
@@ -698,7 +699,6 @@
 	}
 
 	if (ht->refcnt == 1) {
-		ht->refcnt--;
 		u32_destroy_hnode(tp, ht, extack);
 	} else {
 		NL_SET_ERR_MSG_MOD(extack, "Can not delete in-use filter");
@@ -708,11 +708,11 @@
 out:
 	*last = true;
 	if (root_ht) {
-		if (root_ht->refcnt > 1) {
+		if (root_ht->refcnt > 2) {
 			*last = false;
 			goto ret;
 		}
-		if (root_ht->refcnt == 1) {
+		if (root_ht->refcnt == 2) {
 			if (!ht_empty(root_ht)) {
 				*last = false;
 				goto ret;
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index c07c30b..793016d 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -2644,7 +2644,7 @@
 	for (i = 1; i <= CAKE_QUEUES; i++)
 		quantum_div[i] = 65535 / i;
 
-	q->tins = kvzalloc(CAKE_MAX_TINS * sizeof(struct cake_tin_data),
+	q->tins = kvcalloc(CAKE_MAX_TINS, sizeof(struct cake_tin_data),
 			   GFP_KERNEL);
 	if (!q->tins)
 		goto nomem;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index fb886b5..f6552e4 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -477,6 +477,8 @@
 	l->in_session = false;
 	l->bearer_id = bearer_id;
 	l->tolerance = tolerance;
+	if (bc_rcvlink)
+		bc_rcvlink->tolerance = tolerance;
 	l->net_plane = net_plane;
 	l->advertised_mtu = mtu;
 	l->mtu = mtu;
@@ -843,15 +845,22 @@
 
 void tipc_link_reset(struct tipc_link *l)
 {
+	struct sk_buff_head list;
+
+	__skb_queue_head_init(&list);
+
 	l->in_session = false;
 	l->session++;
 	l->mtu = l->advertised_mtu;
+
 	spin_lock_bh(&l->wakeupq.lock);
-	spin_lock_bh(&l->inputq->lock);
-	skb_queue_splice_init(&l->wakeupq, l->inputq);
-	spin_unlock_bh(&l->inputq->lock);
+	skb_queue_splice_init(&l->wakeupq, &list);
 	spin_unlock_bh(&l->wakeupq.lock);
 
+	spin_lock_bh(&l->inputq->lock);
+	skb_queue_splice_init(&list, l->inputq);
+	spin_unlock_bh(&l->inputq->lock);
+
 	__skb_queue_purge(&l->transmq);
 	__skb_queue_purge(&l->deferdq);
 	__skb_queue_purge(&l->backlogq);
@@ -1031,7 +1040,7 @@
 	/* Detect repeated retransmit failures on same packet */
 	if (r->last_retransm != buf_seqno(skb)) {
 		r->last_retransm = buf_seqno(skb);
-		r->stale_limit = jiffies + msecs_to_jiffies(l->tolerance);
+		r->stale_limit = jiffies + msecs_to_jiffies(r->tolerance);
 	} else if (++r->stale_cnt > 99 && time_after(jiffies, r->stale_limit)) {
 		link_retransmit_failure(l, skb);
 		if (link_is_bc_sndlink(l))
@@ -1576,9 +1585,10 @@
 		strncpy(if_name, data, TIPC_MAX_IF_NAME);
 
 		/* Update own tolerance if peer indicates a non-zero value */
-		if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL))
+		if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL)) {
 			l->tolerance = peers_tol;
-
+			l->bc_rcvlink->tolerance = peers_tol;
+		}
 		/* Update own priority if peer's priority is higher */
 		if (in_range(peers_prio, l->priority + 1, TIPC_MAX_LINK_PRI))
 			l->priority = peers_prio;
@@ -1604,9 +1614,10 @@
 		l->rcv_nxt_state = msg_seqno(hdr) + 1;
 
 		/* Update own tolerance if peer indicates a non-zero value */
-		if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL))
+		if (in_range(peers_tol, TIPC_MIN_LINK_TOL, TIPC_MAX_LINK_TOL)) {
 			l->tolerance = peers_tol;
-
+			l->bc_rcvlink->tolerance = peers_tol;
+		}
 		/* Update own prio if peer indicates a different value */
 		if ((peers_prio != l->priority) &&
 		    in_range(peers_prio, 1, TIPC_MAX_LINK_PRI)) {
@@ -2223,6 +2234,8 @@
 			     struct sk_buff_head *xmitq)
 {
 	l->tolerance = tol;
+	if (l->bc_rcvlink)
+		l->bc_rcvlink->tolerance = tol;
 	if (link_is_up(l))
 		tipc_link_build_proto_msg(l, STATE_MSG, 0, 0, 0, tol, 0, xmitq);
 }
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index b6f99b0..49810fd 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1196,6 +1196,7 @@
  * @skb: pointer to message buffer.
  */
 static void tipc_sk_conn_proto_rcv(struct tipc_sock *tsk, struct sk_buff *skb,
+				   struct sk_buff_head *inputq,
 				   struct sk_buff_head *xmitq)
 {
 	struct tipc_msg *hdr = buf_msg(skb);
@@ -1213,7 +1214,16 @@
 		tipc_node_remove_conn(sock_net(sk), tsk_peer_node(tsk),
 				      tsk_peer_port(tsk));
 		sk->sk_state_change(sk);
-		goto exit;
+
+		/* State change is ignored if socket already awake,
+		 * - convert msg to abort msg and add to inqueue
+		 */
+		msg_set_user(hdr, TIPC_CRITICAL_IMPORTANCE);
+		msg_set_type(hdr, TIPC_CONN_MSG);
+		msg_set_size(hdr, BASIC_H_SIZE);
+		msg_set_hdr_sz(hdr, BASIC_H_SIZE);
+		__skb_queue_tail(inputq, skb);
+		return;
 	}
 
 	tsk->probe_unacked = false;
@@ -1936,7 +1946,7 @@
 
 	switch (msg_user(hdr)) {
 	case CONN_MANAGER:
-		tipc_sk_conn_proto_rcv(tsk, skb, xmitq);
+		tipc_sk_conn_proto_rcv(tsk, skb, inputq, xmitq);
 		return;
 	case SOCK_WAKEUP:
 		tipc_dest_del(&tsk->cong_links, msg_orignode(hdr), 0);
diff --git a/samples/Kconfig b/samples/Kconfig
index bd133ef..ad1ec701 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -1,5 +1,6 @@
 menuconfig SAMPLES
 	bool "Sample kernel code"
+	depends on !UML
 	help
 	  You can build and test sample kernel code here.
 
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 5a2d1c9..54da4b07 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -219,7 +219,7 @@
 sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
 	"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
 	"$(if $(CONFIG_64BIT),64,32)" \
-	"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
+	"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \
 	"$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
 	"$(if $(part-of-module),1,0)" "$(@)";
 recordmcount_source := $(srctree)/scripts/recordmcount.pl
diff --git a/tools/perf/scripts/python/export-to-postgresql.py b/tools/perf/scripts/python/export-to-postgresql.py
index efcaf6c..e46f51b 100644
--- a/tools/perf/scripts/python/export-to-postgresql.py
+++ b/tools/perf/scripts/python/export-to-postgresql.py
@@ -204,14 +204,23 @@
 libpq = CDLL("libpq.so.5")
 PQconnectdb = libpq.PQconnectdb
 PQconnectdb.restype = c_void_p
+PQconnectdb.argtypes = [ c_char_p ]
 PQfinish = libpq.PQfinish
+PQfinish.argtypes = [ c_void_p ]
 PQstatus = libpq.PQstatus
+PQstatus.restype = c_int
+PQstatus.argtypes = [ c_void_p ]
 PQexec = libpq.PQexec
 PQexec.restype = c_void_p
+PQexec.argtypes = [ c_void_p, c_char_p ]
 PQresultStatus = libpq.PQresultStatus
+PQresultStatus.restype = c_int
+PQresultStatus.argtypes = [ c_void_p ]
 PQputCopyData = libpq.PQputCopyData
+PQputCopyData.restype = c_int
 PQputCopyData.argtypes = [ c_void_p, c_void_p, c_int ]
 PQputCopyEnd = libpq.PQputCopyEnd
+PQputCopyEnd.restype = c_int
 PQputCopyEnd.argtypes = [ c_void_p, c_void_p ]
 
 sys.path.append(os.environ['PERF_EXEC_PATH'] + \
diff --git a/tools/perf/scripts/python/export-to-sqlite.py b/tools/perf/scripts/python/export-to-sqlite.py
index f827bf7..e4bb82c 100644
--- a/tools/perf/scripts/python/export-to-sqlite.py
+++ b/tools/perf/scripts/python/export-to-sqlite.py
@@ -440,7 +440,11 @@
 
 def sample_table(*x):
 	if branches:
-		bind_exec(sample_query, 18, x)
+		for xx in x[0:15]:
+			sample_query.addBindValue(str(xx))
+		for xx in x[19:22]:
+			sample_query.addBindValue(str(xx))
+		do_query_(sample_query)
 	else:
 		bind_exec(sample_query, 22, x)
 
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index c4acd200..111ae85 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -2286,7 +2286,8 @@
 	if (!symbol_conf.inline_name || !map || !sym)
 		return ret;
 
-	addr = map__rip_2objdump(map, ip);
+	addr = map__map_ip(map, ip);
+	addr = map__rip_2objdump(map, addr);
 
 	inline_node = inlines__tree_find(&map->dso->inlined_nodes, addr);
 	if (!inline_node) {
@@ -2312,7 +2313,7 @@
 {
 	struct callchain_cursor *cursor = arg;
 	const char *srcline = NULL;
-	u64 addr;
+	u64 addr = entry->ip;
 
 	if (symbol_conf.hide_unresolved && entry->sym == NULL)
 		return 0;
@@ -2324,7 +2325,8 @@
 	 * Convert entry->ip from a virtual address to an offset in
 	 * its corresponding binary.
 	 */
-	addr = map__map_ip(entry->map, entry->ip);
+	if (entry->map)
+		addr = map__map_ip(entry->map, entry->ip);
 
 	srcline = callchain_srcline(entry->map, entry->sym, addr);
 	return callchain_cursor_append(cursor, entry->ip,
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index 97efbca..1942f6d 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -35,7 +35,7 @@
 
 cflags = getenv('CFLAGS', '').split()
 # switch off several checks (need to be at the end of cflags list)
-cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter' ]
+cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter', '-Wno-redundant-decls' ]
 if cc != "clang":
     cflags += ['-Wno-cast-function-type' ]
 
diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index 08c341b..e101af5 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # This test is for checking rtnetlink callpaths, and get as much coverage as possible.
 #
diff --git a/tools/testing/selftests/net/udpgso_bench.sh b/tools/testing/selftests/net/udpgso_bench.sh
index 850767b..99e537a 100755
--- a/tools/testing/selftests/net/udpgso_bench.sh
+++ b/tools/testing/selftests/net/udpgso_bench.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Run a series of udpgso benchmarks