Linux patch 4.1.174.1-22

2 files changed, 4834 insertions, 0 deletions

diff --git a/0000_README b/0000_README
index 1ca97cda..8b9fa0f1 100644
--- a/0000_README
+++ b/0000_README
@@ -107,6 +107,10 @@ Patch:  1015_linux-4.1.16.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.1.16
 
+Patch:  1016_linux-4.1.17.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.1.17
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.
diff --git a/1016_linux-4.1.17.patch b/1016_linux-4.1.17.patch
new file mode 100644
index 00000000..214c6ac1
--- /dev/null
+++ b/1016_linux-4.1.17.patch
@@ -0,0 +1,4830 @@
+diff --git a/Makefile b/Makefile
+index 7609f1dcdcb9..d398dd440bc9 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 1
+-SUBLEVEL = 16
++SUBLEVEL = 17
+ EXTRAVERSION =
+ NAME = Series 4800
+ 
+diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
+index 191dcfab9f60..da09ddcfcc00 100644
+--- a/arch/arm/kvm/mmu.c
++++ b/arch/arm/kvm/mmu.c
+@@ -98,6 +98,11 @@ static void kvm_flush_dcache_pud(pud_t pud)
+ 	__kvm_flush_dcache_pud(pud);
+ }
+ 
++static bool kvm_is_device_pfn(unsigned long pfn)
++{
++	return !pfn_valid(pfn);
++}
++
+ /**
+  * stage2_dissolve_pmd() - clear and flush huge PMD entry
+  * @kvm:	pointer to kvm structure.
+@@ -213,7 +218,7 @@ static void unmap_ptes(struct kvm *kvm, pmd_t *pmd,
+ 			kvm_tlb_flush_vmid_ipa(kvm, addr);
+ 
+ 			/* No need to invalidate the cache for device mappings */
+-			if ((pte_val(old_pte) & PAGE_S2_DEVICE) != PAGE_S2_DEVICE)
++			if (!kvm_is_device_pfn(pte_pfn(old_pte)))
+ 				kvm_flush_dcache_pte(old_pte);
+ 
+ 			put_page(virt_to_page(pte));
+@@ -305,8 +310,7 @@ static void stage2_flush_ptes(struct kvm *kvm, pmd_t *pmd,
+ 
+ 	pte = pte_offset_kernel(pmd, addr);
+ 	do {
+-		if (!pte_none(*pte) &&
+-		    (pte_val(*pte) & PAGE_S2_DEVICE) != PAGE_S2_DEVICE)
++		if (!pte_none(*pte) && !kvm_is_device_pfn(pte_pfn(*pte)))
+ 			kvm_flush_dcache_pte(*pte);
+ 	} while (pte++, addr += PAGE_SIZE, addr != end);
+ }
+@@ -1037,11 +1041,6 @@ static bool kvm_is_write_fault(struct kvm_vcpu *vcpu)
+ 	return kvm_vcpu_dabt_iswrite(vcpu);
+ }
+ 
+-static bool kvm_is_device_pfn(unsigned long pfn)
+-{
+-	return !pfn_valid(pfn);
+-}
+-
+ /**
+  * stage2_wp_ptes - write protect PMD range
+  * @pmd:	pointer to pmd entry
+diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
+index e0e23582c8b4..5fe949b084ac 100644
+--- a/arch/arm/net/bpf_jit_32.c
++++ b/arch/arm/net/bpf_jit_32.c
+@@ -162,19 +162,6 @@ static inline int mem_words_used(struct jit_ctx *ctx)
+ 	return fls(ctx->seen & SEEN_MEM);
+ }
+ 
+-static inline bool is_load_to_a(u16 inst)
+-{
+-	switch (inst) {
+-	case BPF_LD | BPF_W | BPF_LEN:
+-	case BPF_LD | BPF_W | BPF_ABS:
+-	case BPF_LD | BPF_H | BPF_ABS:
+-	case BPF_LD | BPF_B | BPF_ABS:
+-		return true;
+-	default:
+-		return false;
+-	}
+-}
+-
+ static void jit_fill_hole(void *area, unsigned int size)
+ {
+ 	u32 *ptr;
+@@ -186,7 +173,6 @@ static void jit_fill_hole(void *area, unsigned int size)
+ static void build_prologue(struct jit_ctx *ctx)
+ {
+ 	u16 reg_set = saved_regs(ctx);
+-	u16 first_inst = ctx->skf->insns[0].code;
+ 	u16 off;
+ 
+ #ifdef CONFIG_FRAME_POINTER
+@@ -216,7 +202,7 @@ static void build_prologue(struct jit_ctx *ctx)
+ 		emit(ARM_MOV_I(r_X, 0), ctx);
+ 
+ 	/* do not leak kernel data to userspace */
+-	if ((first_inst != (BPF_RET | BPF_K)) && !(is_load_to_a(first_inst)))
++	if (bpf_needs_clear_a(&ctx->skf->insns[0]))
+ 		emit(ARM_MOV_I(r_A, 0), ctx);
+ 
+ 	/* stack space for the BPF_MEM words */
+diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
+index 17e92f05b1fe..3ca894ecf699 100644
+--- a/arch/arm64/include/asm/kvm_emulate.h
++++ b/arch/arm64/include/asm/kvm_emulate.h
+@@ -99,11 +99,13 @@ static inline void vcpu_set_thumb(struct kvm_vcpu *vcpu)
+ 	*vcpu_cpsr(vcpu) |= COMPAT_PSR_T_BIT;
+ }
+ 
++/*
++ * vcpu_reg should always be passed a register number coming from a
++ * read of ESR_EL2. Otherwise, it may give the wrong result on AArch32
++ * with banked registers.
++ */
+ static inline unsigned long *vcpu_reg(const struct kvm_vcpu *vcpu, u8 reg_num)
+ {
+-	if (vcpu_mode_is_32bit(vcpu))
+-		return vcpu_reg32(vcpu, reg_num);
+-
+ 	return (unsigned long *)&vcpu_gp_regs(vcpu)->regs.regs[reg_num];
+ }
+ 
+diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
+index d882b833dbdb..608ac6aa497b 100644
+--- a/arch/arm64/kernel/ptrace.c
++++ b/arch/arm64/kernel/ptrace.c
+@@ -58,6 +58,12 @@
+  */
+ void ptrace_disable(struct task_struct *child)
+ {
++	/*
++	 * This would be better off in core code, but PTRACE_DETACH has
++	 * grown its fair share of arch-specific worts and changing it
++	 * is likely to cause regressions on obscure architectures.
++	 */
++	user_disable_single_step(child);
+ }
+ 
+ #ifdef CONFIG_HAVE_HW_BREAKPOINT
+diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
+index 74753132c3ac..bbdb53b87e13 100644
+--- a/arch/arm64/kernel/setup.c
++++ b/arch/arm64/kernel/setup.c
+@@ -523,6 +523,10 @@ static int c_show(struct seq_file *m, void *v)
+ 		seq_printf(m, "processor\t: %d\n", i);
+ #endif
+ 
++		seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
++			   loops_per_jiffy / (500000UL/HZ),
++			   loops_per_jiffy / (5000UL/HZ) % 100);
++
+ 		/*
+ 		 * Dump out the common processor features in a single line.
+ 		 * Userspace should read the hwcaps with getauxval(AT_HWCAP)
+diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
+index 53f1f8dccf6c..357418137db7 100644
+--- a/arch/arm64/kernel/suspend.c
++++ b/arch/arm64/kernel/suspend.c
+@@ -1,3 +1,4 @@
++#include <linux/ftrace.h>
+ #include <linux/percpu.h>
+ #include <linux/slab.h>
+ #include <asm/cacheflush.h>
+@@ -71,6 +72,13 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
+ 	local_dbg_save(flags);
+ 
+ 	/*
++	 * Function graph tracer state gets incosistent when the kernel
++	 * calls functions that never return (aka suspend finishers) hence
++	 * disable graph tracing during their execution.
++	 */
++	pause_graph_tracing();
++
++	/*
+ 	 * mm context saved on the stack, it will be restored when
+ 	 * the cpu comes out of reset through the identity mapped
+ 	 * page tables, so that the thread address space is properly
+@@ -111,6 +119,8 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
+ 			hw_breakpoint_restore(NULL);
+ 	}
+ 
++	unpause_graph_tracing();
++
+ 	/*
+ 	 * Restore pstate flags. OS lock and mdscr have been already
+ 	 * restored, so from this point onwards, debugging is fully
+diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
+index 85c57158dcd9..648112e90ed5 100644
+--- a/arch/arm64/kvm/inject_fault.c
++++ b/arch/arm64/kvm/inject_fault.c
+@@ -48,7 +48,7 @@ static void prepare_fault32(struct kvm_vcpu *vcpu, u32 mode, u32 vect_offset)
+ 
+ 	/* Note: These now point to the banked copies */
+ 	*vcpu_spsr(vcpu) = new_spsr_value;
+-	*vcpu_reg(vcpu, 14) = *vcpu_pc(vcpu) + return_offset;
++	*vcpu_reg32(vcpu, 14) = *vcpu_pc(vcpu) + return_offset;
+ 
+ 	/* Branch to exception vector */
+ 	if (sctlr & (1 << 13))
+diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
+index 5b8b664422d3..cb34eb8bbb9d 100644
+--- a/arch/arm64/mm/mmu.c
++++ b/arch/arm64/mm/mmu.c
+@@ -450,6 +450,9 @@ void __init paging_init(void)
+ 
+ 	empty_zero_page = virt_to_page(zero_page);
+ 
++	/* Ensure the zero page is visible to the page table walker */
++	dsb(ishst);
++
+ 	/*
+ 	 * TTBR0 is only used for the identity mapping at this stage. Make it
+ 	 * point to zero page to avoid speculatively fetching new entries.
+diff --git a/arch/arm64/net/bpf_jit.h b/arch/arm64/net/bpf_jit.h
+index 98a26ce82d26..aee5637ea436 100644
+--- a/arch/arm64/net/bpf_jit.h
++++ b/arch/arm64/net/bpf_jit.h
+@@ -1,7 +1,7 @@
+ /*
+  * BPF JIT compiler for ARM64
+  *
+- * Copyright (C) 2014 Zi Shen Lim <zlim.lnx@gmail.com>
++ * Copyright (C) 2014-2015 Zi Shen Lim <zlim.lnx@gmail.com>
+  *
+  * This program is free software; you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License version 2 as
+@@ -35,6 +35,7 @@
+ 	aarch64_insn_gen_comp_branch_imm(0, offset, Rt, A64_VARIANT(sf), \
+ 		AARCH64_INSN_BRANCH_COMP_##type)
+ #define A64_CBZ(sf, Rt, imm19) A64_COMP_BRANCH(sf, Rt, (imm19) << 2, ZERO)
++#define A64_CBNZ(sf, Rt, imm19) A64_COMP_BRANCH(sf, Rt, (imm19) << 2, NONZERO)
+ 
+ /* Conditional branch (immediate) */
+ #define A64_COND_BRANCH(cond, offset) \
+diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
+index c047598b09e0..6217f80702d2 100644
+--- a/arch/arm64/net/bpf_jit_comp.c
++++ b/arch/arm64/net/bpf_jit_comp.c
+@@ -1,7 +1,7 @@
+ /*
+  * BPF JIT compiler for ARM64
+  *
+- * Copyright (C) 2014 Zi Shen Lim <zlim.lnx@gmail.com>
++ * Copyright (C) 2014-2015 Zi Shen Lim <zlim.lnx@gmail.com>
+  *
+  * This program is free software; you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License version 2 as
+@@ -225,6 +225,17 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
+ 	u8 jmp_cond;
+ 	s32 jmp_offset;
+ 
++#define check_imm(bits, imm) do {				\
++	if ((((imm) > 0) && ((imm) >> (bits))) ||		\
++	    (((imm) < 0) && (~(imm) >> (bits)))) {		\
++		pr_info("[%2d] imm=%d(0x%x) out of range\n",	\
++			i, imm, imm);				\
++		return -EINVAL;					\
++	}							\
++} while (0)
++#define check_imm19(imm) check_imm(19, imm)
++#define check_imm26(imm) check_imm(26, imm)
++
+ 	switch (code) {
+ 	/* dst = src */
+ 	case BPF_ALU | BPF_MOV | BPF_X:
+@@ -258,15 +269,33 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
+ 		break;
+ 	case BPF_ALU | BPF_DIV | BPF_X:
+ 	case BPF_ALU64 | BPF_DIV | BPF_X:
+-		emit(A64_UDIV(is64, dst, dst, src), ctx);
+-		break;
+ 	case BPF_ALU | BPF_MOD | BPF_X:
+ 	case BPF_ALU64 | BPF_MOD | BPF_X:
+-		ctx->tmp_used = 1;
+-		emit(A64_UDIV(is64, tmp, dst, src), ctx);
+-		emit(A64_MUL(is64, tmp, tmp, src), ctx);
+-		emit(A64_SUB(is64, dst, dst, tmp), ctx);
++	{
++		const u8 r0 = bpf2a64[BPF_REG_0];
++
++		/* if (src == 0) return 0 */
++		jmp_offset = 3; /* skip ahead to else path */
++		check_imm19(jmp_offset);
++		emit(A64_CBNZ(is64, src, jmp_offset), ctx);
++		emit(A64_MOVZ(1, r0, 0, 0), ctx);
++		jmp_offset = epilogue_offset(ctx);
++		check_imm26(jmp_offset);
++		emit(A64_B(jmp_offset), ctx);
++		/* else */
++		switch (BPF_OP(code)) {
++		case BPF_DIV:
++			emit(A64_UDIV(is64, dst, dst, src), ctx);
++			break;
++		case BPF_MOD:
++			ctx->tmp_used = 1;
++			emit(A64_UDIV(is64, tmp, dst, src), ctx);
++			emit(A64_MUL(is64, tmp, tmp, src), ctx);
++			emit(A64_SUB(is64, dst, dst, tmp), ctx);
++			break;
++		}
+ 		break;
++	}
+ 	case BPF_ALU | BPF_LSH | BPF_X:
+ 	case BPF_ALU64 | BPF_LSH | BPF_X:
+ 		emit(A64_LSLV(is64, dst, dst, src), ctx);
+@@ -393,17 +422,6 @@ emit_bswap_uxt:
+ 		emit(A64_ASR(is64, dst, dst, imm), ctx);
+ 		break;
+ 
+-#define check_imm(bits, imm) do {				\
+-	if ((((imm) > 0) && ((imm) >> (bits))) ||		\
+-	    (((imm) < 0) && (~(imm) >> (bits)))) {		\
+-		pr_info("[%2d] imm=%d(0x%x) out of range\n",	\
+-			i, imm, imm);				\
+-		return -EINVAL;					\
+-	}							\
+-} while (0)
+-#define check_imm19(imm) check_imm(19, imm)
+-#define check_imm26(imm) check_imm(26, imm)
+-
+ 	/* JUMP off */
+ 	case BPF_JMP | BPF_JA:
+ 		jmp_offset = bpf2a64_offset(i + off, i, ctx);
+diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c
+index e23fdf2a9c80..d6d27d51d131 100644
+--- a/arch/mips/net/bpf_jit.c
++++ b/arch/mips/net/bpf_jit.c
+@@ -556,19 +556,6 @@ static inline u16 align_sp(unsigned int num)
+ 	return num;
+ }
+ 
+-static bool is_load_to_a(u16 inst)
+-{
+-	switch (inst) {
+-	case BPF_LD | BPF_W | BPF_LEN:
+-	case BPF_LD | BPF_W | BPF_ABS:
+-	case BPF_LD | BPF_H | BPF_ABS:
+-	case BPF_LD | BPF_B | BPF_ABS:
+-		return true;
+-	default:
+-		return false;
+-	}
+-}
+-
+ static void save_bpf_jit_regs(struct jit_ctx *ctx, unsigned offset)
+ {
+ 	int i = 0, real_off = 0;
+@@ -686,7 +673,6 @@ static unsigned int get_stack_depth(struct jit_ctx *ctx)
+ 
+ static void build_prologue(struct jit_ctx *ctx)
+ {
+-	u16 first_inst = ctx->skf->insns[0].code;
+ 	int sp_off;
+ 
+ 	/* Calculate the total offset for the stack pointer */
+@@ -700,7 +686,7 @@ static void build_prologue(struct jit_ctx *ctx)
+ 		emit_jit_reg_move(r_X, r_zero, ctx);
+ 
+ 	/* Do not leak kernel data to userspace */
+-	if ((first_inst != (BPF_RET | BPF_K)) && !(is_load_to_a(first_inst)))
++	if (bpf_needs_clear_a(&ctx->skf->insns[0]))
+ 		emit_jit_reg_move(r_A, r_zero, ctx);
+ }
+ 
+diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
+index 4434b54e1d87..78ae5552fdb8 100644
+--- a/arch/mn10300/Kconfig
++++ b/arch/mn10300/Kconfig
+@@ -1,6 +1,7 @@
+ config MN10300
+ 	def_bool y
+ 	select HAVE_OPROFILE
++	select HAVE_UID16
+ 	select GENERIC_IRQ_SHOW
+ 	select ARCH_WANT_IPC_PARSE_VERSION
+ 	select HAVE_ARCH_TRACEHOOK
+@@ -37,9 +38,6 @@ config HIGHMEM
+ config NUMA
+ 	def_bool n
+ 
+-config UID16
+-	def_bool y
+-
+ config RWSEM_GENERIC_SPINLOCK
+ 	def_bool y
+ 
+diff --git a/arch/powerpc/include/asm/cmpxchg.h b/arch/powerpc/include/asm/cmpxchg.h
+index d463c68fe7f0..99897f6645c1 100644
+--- a/arch/powerpc/include/asm/cmpxchg.h
++++ b/arch/powerpc/include/asm/cmpxchg.h
+@@ -18,12 +18,12 @@ __xchg_u32(volatile void *p, unsigned long val)
+ 	unsigned long prev;
+ 
+ 	__asm__ __volatile__(
+-	PPC_RELEASE_BARRIER
++	PPC_ATOMIC_ENTRY_BARRIER
+ "1:	lwarx	%0,0,%2 \n"
+ 	PPC405_ERR77(0,%2)
+ "	stwcx.	%3,0,%2 \n\
+ 	bne-	1b"
+-	PPC_ACQUIRE_BARRIER
++	PPC_ATOMIC_EXIT_BARRIER
+ 	: "=&r" (prev), "+m" (*(volatile unsigned int *)p)
+ 	: "r" (p), "r" (val)
+ 	: "cc", "memory");
+@@ -61,12 +61,12 @@ __xchg_u64(volatile void *p, unsigned long val)
+ 	unsigned long prev;
+ 
+ 	__asm__ __volatile__(
+-	PPC_RELEASE_BARRIER
++	PPC_ATOMIC_ENTRY_BARRIER
+ "1:	ldarx	%0,0,%2 \n"
+ 	PPC405_ERR77(0,%2)
+ "	stdcx.	%3,0,%2 \n\
+ 	bne-	1b"
+-	PPC_ACQUIRE_BARRIER
++	PPC_ATOMIC_EXIT_BARRIER
+ 	: "=&r" (prev), "+m" (*(volatile unsigned long *)p)
+ 	: "r" (p), "r" (val)
+ 	: "cc", "memory");
+@@ -152,14 +152,14 @@ __cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
+ 	unsigned int prev;
+ 
+ 	__asm__ __volatile__ (
+-	PPC_RELEASE_BARRIER
++	PPC_ATOMIC_ENTRY_BARRIER
+ "1:	lwarx	%0,0,%2		# __cmpxchg_u32\n\
+ 	cmpw	0,%0,%3\n\
+ 	bne-	2f\n"
+ 	PPC405_ERR77(0,%2)
+ "	stwcx.	%4,0,%2\n\
+ 	bne-	1b"
+-	PPC_ACQUIRE_BARRIER
++	PPC_ATOMIC_EXIT_BARRIER
+ 	"\n\
+ 2:"
+ 	: "=&r" (prev), "+m" (*p)
+@@ -198,13 +198,13 @@ __cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new)
+ 	unsigned long prev;
+ 
+ 	__asm__ __volatile__ (
+-	PPC_RELEASE_BARRIER
++	PPC_ATOMIC_ENTRY_BARRIER
+ "1:	ldarx	%0,0,%2		# __cmpxchg_u64\n\
+ 	cmpd	0,%0,%3\n\
+ 	bne-	2f\n\
+ 	stdcx.	%4,0,%2\n\
+ 	bne-	1b"
+-	PPC_ACQUIRE_BARRIER
++	PPC_ATOMIC_EXIT_BARRIER
+ 	"\n\
+ 2:"
+ 	: "=&r" (prev), "+m" (*p)
+diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
+index af56b5c6c81a..f4f99f01b746 100644
+--- a/arch/powerpc/include/asm/reg.h
++++ b/arch/powerpc/include/asm/reg.h
+@@ -108,6 +108,7 @@
+ #define MSR_TS_T	__MASK(MSR_TS_T_LG)	/*  Transaction Transactional */
+ #define MSR_TS_MASK	(MSR_TS_T | MSR_TS_S)   /* Transaction State bits */
+ #define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */
++#define MSR_TM_RESV(x) (((x) & MSR_TS_MASK) == MSR_TS_MASK) /* Reserved */
+ #define MSR_TM_TRANSACTIONAL(x)	(((x) & MSR_TS_MASK) == MSR_TS_T)
+ #define MSR_TM_SUSPENDED(x)	(((x) & MSR_TS_MASK) == MSR_TS_S)
+ 
+diff --git a/arch/powerpc/include/asm/synch.h b/arch/powerpc/include/asm/synch.h
+index e682a7143edb..c50868681f9e 100644
+--- a/arch/powerpc/include/asm/synch.h
++++ b/arch/powerpc/include/asm/synch.h
+@@ -44,7 +44,7 @@ static inline void isync(void)
+ 	MAKE_LWSYNC_SECTION_ENTRY(97, __lwsync_fixup);
+ #define PPC_ACQUIRE_BARRIER	 "\n" stringify_in_c(__PPC_ACQUIRE_BARRIER)
+ #define PPC_RELEASE_BARRIER	 stringify_in_c(LWSYNC) "\n"
+-#define PPC_ATOMIC_ENTRY_BARRIER "\n" stringify_in_c(LWSYNC) "\n"
++#define PPC_ATOMIC_ENTRY_BARRIER "\n" stringify_in_c(sync) "\n"
+ #define PPC_ATOMIC_EXIT_BARRIER	 "\n" stringify_in_c(sync) "\n"
+ #else
+ #define PPC_ACQUIRE_BARRIER
+diff --git a/arch/powerpc/include/uapi/asm/elf.h b/arch/powerpc/include/uapi/asm/elf.h
+index 59dad113897b..c2d21d11c2d2 100644
+--- a/arch/powerpc/include/uapi/asm/elf.h
++++ b/arch/powerpc/include/uapi/asm/elf.h
+@@ -295,6 +295,8 @@ do {									\
+ #define R_PPC64_TLSLD		108
+ #define R_PPC64_TOCSAVE		109
+ 
++#define R_PPC64_ENTRY		118
++
+ #define R_PPC64_REL16		249
+ #define R_PPC64_REL16_LO	250
+ #define R_PPC64_REL16_HI	251
+diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
+index 68384514506b..59663af9315f 100644
+--- a/arch/powerpc/kernel/module_64.c
++++ b/arch/powerpc/kernel/module_64.c
+@@ -635,6 +635,33 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
+ 			 */
+ 			break;
+ 
++		case R_PPC64_ENTRY:
++			/*
++			 * Optimize ELFv2 large code model entry point if
++			 * the TOC is within 2GB range of current location.
++			 */
++			value = my_r2(sechdrs, me) - (unsigned long)location;
++			if (value + 0x80008000 > 0xffffffff)
++				break;
++			/*
++			 * Check for the large code model prolog sequence:
++		         *	ld r2, ...(r12)
++			 *	add r2, r2, r12
++			 */
++			if ((((uint32_t *)location)[0] & ~0xfffc)
++			    != 0xe84c0000)
++				break;
++			if (((uint32_t *)location)[1] != 0x7c426214)
++				break;
++			/*
++			 * If found, replace it with:
++			 *	addis r2, r12, (.TOC.-func)@ha
++			 *	addi r2, r12, (.TOC.-func)@l
++			 */
++			((uint32_t *)location)[0] = 0x3c4c0000 + PPC_HA(value);
++			((uint32_t *)location)[1] = 0x38420000 + PPC_LO(value);
++			break;
++
+ 		case R_PPC64_REL16_HA:
+ 			/* Subtract location pointer */
+ 			value -= (unsigned long)location;
+diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
+index 0596373cd1c3..c8c8275765e7 100644
+--- a/arch/powerpc/kernel/process.c
++++ b/arch/powerpc/kernel/process.c
+@@ -551,6 +551,24 @@ static void tm_reclaim_thread(struct thread_struct *thr,
+ 		msr_diff &= MSR_FP | MSR_VEC | MSR_VSX | MSR_FE0 | MSR_FE1;
+ 	}
+ 
++	/*
++	 * Use the current MSR TM suspended bit to track if we have
++	 * checkpointed state outstanding.
++	 * On signal delivery, we'd normally reclaim the checkpointed
++	 * state to obtain stack pointer (see:get_tm_stackpointer()).
++	 * This will then directly return to userspace without going
++	 * through __switch_to(). However, if the stack frame is bad,
++	 * we need to exit this thread which calls __switch_to() which
++	 * will again attempt to reclaim the already saved tm state.
++	 * Hence we need to check that we've not already reclaimed
++	 * this state.
++	 * We do this using the current MSR, rather tracking it in
++	 * some specific thread_struct bit, as it has the additional
++	 * benifit of checking for a potential TM bad thing exception.
++	 */
++	if (!MSR_TM_SUSPENDED(mfmsr()))
++		return;
++
+ 	tm_reclaim(thr, thr->regs->msr, cause);
+ 
+ 	/* Having done the reclaim, we now have the checkpointed
+diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
+index da50e0c9c57e..7356c33dc897 100644
+--- a/arch/powerpc/kernel/signal_32.c
++++ b/arch/powerpc/kernel/signal_32.c
+@@ -875,6 +875,15 @@ static long restore_tm_user_regs(struct pt_regs *regs,
+ 		return 1;
+ #endif /* CONFIG_SPE */
+ 
++	/* Get the top half of the MSR from the user context */
++	if (__get_user(msr_hi, &tm_sr->mc_gregs[PT_MSR]))
++		return 1;
++	msr_hi <<= 32;
++	/* If TM bits are set to the reserved value, it's an invalid context */
++	if (MSR_TM_RESV(msr_hi))
++		return 1;
++	/* Pull in the MSR TM bits from the user context */
++	regs->msr = (regs->msr & ~MSR_TS_MASK) | (msr_hi & MSR_TS_MASK);
+ 	/* Now, recheckpoint.  This loads up all of the checkpointed (older)
+ 	 * registers, including FP and V[S]Rs.  After recheckpointing, the
+ 	 * transactional versions should be loaded.
+@@ -884,11 +893,6 @@ static long restore_tm_user_regs(struct pt_regs *regs,
+ 	current->thread.tm_texasr |= TEXASR_FS;
+ 	/* This loads the checkpointed FP/VEC state, if used */
+ 	tm_recheckpoint(&current->thread, msr);
+-	/* Get the top half of the MSR */
+-	if (__get_user(msr_hi, &tm_sr->mc_gregs[PT_MSR]))
+-		return 1;
+-	/* Pull in MSR TM from user context */
+-	regs->msr = (regs->msr & ~MSR_TS_MASK) | ((msr_hi<<32) & MSR_TS_MASK);
+ 
+ 	/* This loads the speculative FP/VEC state, if used */
+ 	if (msr & MSR_FP) {
+diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
+index c7c24d2e2bdb..164fd6474843 100644
+--- a/arch/powerpc/kernel/signal_64.c
++++ b/arch/powerpc/kernel/signal_64.c
+@@ -427,6 +427,10 @@ static long restore_tm_sigcontexts(struct pt_regs *regs,
+ 
+ 	/* get MSR separately, transfer the LE bit if doing signal return */
+ 	err |= __get_user(msr, &sc->gp_regs[PT_MSR]);
++	/* Don't allow reserved mode. */
++	if (MSR_TM_RESV(msr))
++		return -EINVAL;
++
+ 	/* pull in MSR TM from user context */
+ 	regs->msr = (regs->msr & ~MSR_TS_MASK) | (msr & MSR_TS_MASK);
+ 
+diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
+index f1e0e5522e3a..f5b3de7f7fa2 100644
+--- a/arch/powerpc/kvm/book3s_hv.c
++++ b/arch/powerpc/kvm/book3s_hv.c
+@@ -210,6 +210,12 @@ static void kvmppc_core_vcpu_put_hv(struct kvm_vcpu *vcpu)
+ 
+ static void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr)
+ {
++	/*
++	 * Check for illegal transactional state bit combination
++	 * and if we find it, force the TS field to a safe state.
++	 */
++	if ((msr & MSR_TS_MASK) == MSR_TS_MASK)
++		msr &= ~MSR_TS_MASK;
+ 	vcpu->arch.shregs.msr = msr;
+ 	kvmppc_end_cede(vcpu);
+ }
+diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
+index 17cea18a09d3..264c473c1b3c 100644
+--- a/arch/powerpc/net/bpf_jit_comp.c
++++ b/arch/powerpc/net/bpf_jit_comp.c
+@@ -78,18 +78,9 @@ static void bpf_jit_build_prologue(struct bpf_prog *fp, u32 *image,
+ 		PPC_LI(r_X, 0);
+ 	}
+ 
+-	switch (filter[0].code) {
+-	case BPF_RET | BPF_K:
+-	case BPF_LD | BPF_W | BPF_LEN:
+-	case BPF_LD | BPF_W | BPF_ABS:
+-	case BPF_LD | BPF_H | BPF_ABS:
+-	case BPF_LD | BPF_B | BPF_ABS:
+-		/* first instruction sets A register (or is RET 'constant') */
+-		break;
+-	default:
+-		/* make sure we dont leak kernel information to user */
++	/* make sure we dont leak kernel information to user */
++	if (bpf_needs_clear_a(&filter[0]))
+ 		PPC_LI(r_A, 0);
+-	}
+ }
+ 
+ static void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx)
+diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
+index 2241565b0739..b831a2ee32e9 100644
+--- a/arch/powerpc/platforms/powernv/opal.c
++++ b/arch/powerpc/platforms/powernv/opal.c
+@@ -358,7 +358,7 @@ static void opal_handle_message(void)
+ 
+ 	/* Sanity check */
+ 	if (type >= OPAL_MSG_TYPE_MAX) {
+-		pr_warning("%s: Unknown message type: %u\n", __func__, type);
++		pr_warn_once("%s: Unknown message type: %u\n", __func__, type);
+ 		return;
+ 	}
+ 	opal_message_do_notify(type, (void *)&msg);
+diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c
+index 7931eeeb649a..8109e92cd619 100644
+--- a/arch/sparc/net/bpf_jit_comp.c
++++ b/arch/sparc/net/bpf_jit_comp.c
+@@ -420,22 +420,9 @@ void bpf_jit_compile(struct bpf_prog *fp)
+ 		}
+ 		emit_reg_move(O7, r_saved_O7);
+ 
+-		switch (filter[0].code) {
+-		case BPF_RET | BPF_K:
+-		case BPF_LD | BPF_W | BPF_LEN:
+-		case BPF_LD | BPF_W | BPF_ABS:
+-		case BPF_LD | BPF_H | BPF_ABS:
+-		case BPF_LD | BPF_B | BPF_ABS:
+-			/* The first instruction sets the A register (or is
+-			 * a "RET 'constant'")
+-			 */
+-			break;
+-		default:
+-			/* Make sure we dont leak kernel information to the
+-			 * user.
+-			 */
++		/* Make sure we dont leak kernel information to the user. */
++		if (bpf_needs_clear_a(&filter[0]))
+ 			emit_clear(r_A); /* A = 0 */
+-		}
+ 
+ 		for (i = 0; i < flen; i++) {
+ 			unsigned int K = filter[i].k;
+diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
+index 4fa687a47a62..6b8d6e8cd449 100644
+--- a/arch/x86/include/asm/boot.h
++++ b/arch/x86/include/asm/boot.h
+@@ -27,7 +27,7 @@
+ #define BOOT_HEAP_SIZE             0x400000
+ #else /* !CONFIG_KERNEL_BZIP2 */
+ 
+-#define BOOT_HEAP_SIZE	0x8000
++#define BOOT_HEAP_SIZE	0x10000
+ 
+ #endif /* !CONFIG_KERNEL_BZIP2 */
+ 
+diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
+index 80d67dd80351..73e38f14ddeb 100644
+--- a/arch/x86/include/asm/mmu_context.h
++++ b/arch/x86/include/asm/mmu_context.h
+@@ -104,8 +104,36 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ #endif
+ 		cpumask_set_cpu(cpu, mm_cpumask(next));
+ 
+-		/* Re-load page tables */
++		/*
++		 * Re-load page tables.
++		 *
++		 * This logic has an ordering constraint:
++		 *
++		 *  CPU 0: Write to a PTE for 'next'
++		 *  CPU 0: load bit 1 in mm_cpumask.  if nonzero, send IPI.
++		 *  CPU 1: set bit 1 in next's mm_cpumask
++		 *  CPU 1: load from the PTE that CPU 0 writes (implicit)
++		 *
++		 * We need to prevent an outcome in which CPU 1 observes
++		 * the new PTE value and CPU 0 observes bit 1 clear in
++		 * mm_cpumask.  (If that occurs, then the IPI will never
++		 * be sent, and CPU 0's TLB will contain a stale entry.)
++		 *
++		 * The bad outcome can occur if either CPU's load is
++		 * reordered before that CPU's store, so both CPUs must
++		 * execute full barriers to prevent this from happening.
++		 *
++		 * Thus, switch_mm needs a full barrier between the
++		 * store to mm_cpumask and any operation that could load
++		 * from next->pgd.  TLB fills are special and can happen
++		 * due to instruction fetches or for no reason at all,
++		 * and neither LOCK nor MFENCE orders them.
++		 * Fortunately, load_cr3() is serializing and gives the
++		 * ordering guarantee we need.
++		 *
++		 */
+ 		load_cr3(next->pgd);
++
+ 		trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
+ 
+ 		/* Stop flush ipis for the previous mm */
+@@ -142,10 +170,14 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ 			 * schedule, protecting us from simultaneous changes.
+ 			 */
+ 			cpumask_set_cpu(cpu, mm_cpumask(next));
++
+ 			/*
+ 			 * We were in lazy tlb mode and leave_mm disabled
+ 			 * tlb flush IPI delivery. We must reload CR3
+ 			 * to make sure to use no freed page tables.
++			 *
++			 * As above, load_cr3() is serializing and orders TLB
++			 * fills with respect to the mm_cpumask write.
+ 			 */
+ 			load_cr3(next->pgd);
+ 			trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
+diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
+index 86db4bcd7ce5..0549ae3cb332 100644
+--- a/arch/x86/kernel/reboot.c
++++ b/arch/x86/kernel/reboot.c
+@@ -182,6 +182,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
+ 			DMI_MATCH(DMI_PRODUCT_NAME, "iMac9,1"),
+ 		},
+ 	},
++	{	/* Handle problems with rebooting on the iMac10,1. */
++		.callback = set_pci_reboot,
++		.ident = "Apple iMac10,1",
++		.matches = {
++		    DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
++		    DMI_MATCH(DMI_PRODUCT_NAME, "iMac10,1"),
++		},
++	},
+ 
+ 	/* ASRock */
+ 	{	/* Handle problems with rebooting on ASRock Q1900DC-ITX */
+diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
+index e0fd5f47fbb9..5d2e2e9af1c4 100644
+--- a/arch/x86/kernel/signal.c
++++ b/arch/x86/kernel/signal.c
+@@ -667,12 +667,15 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
+ 	signal_setup_done(failed, ksig, stepping);
+ }
+ 
+-#ifdef CONFIG_X86_32
+-#define NR_restart_syscall	__NR_restart_syscall
+-#else /* !CONFIG_X86_32 */
+-#define NR_restart_syscall	\
+-	test_thread_flag(TIF_IA32) ? __NR_ia32_restart_syscall : __NR_restart_syscall
+-#endif /* CONFIG_X86_32 */
++static inline unsigned long get_nr_restart_syscall(const struct pt_regs *regs)
++{
++#if defined(CONFIG_X86_32) || !defined(CONFIG_X86_64)
++	return __NR_restart_syscall;
++#else /* !CONFIG_X86_32 && CONFIG_X86_64 */
++	return test_thread_flag(TIF_IA32) ? __NR_ia32_restart_syscall :
++		__NR_restart_syscall | (regs->orig_ax & __X32_SYSCALL_BIT);
++#endif /* CONFIG_X86_32 || !CONFIG_X86_64 */
++}
+ 
+ /*
+  * Note that 'init' is a special process: it doesn't get signals it doesn't
+@@ -701,7 +704,7 @@ static void do_signal(struct pt_regs *regs)
+ 			break;
+ 
+ 		case -ERESTART_RESTARTBLOCK:
+-			regs->ax = NR_restart_syscall;
++			regs->ax = get_nr_restart_syscall(regs);
+ 			regs->ip -= 2;
+ 			break;
+ 		}
+diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
+index 454ccb082e18..0d039cd268a8 100644
+--- a/arch/x86/kvm/svm.c
++++ b/arch/x86/kvm/svm.c
+@@ -1106,6 +1106,7 @@ static void init_vmcb(struct vcpu_svm *svm)
+ 	set_exception_intercept(svm, UD_VECTOR);
+ 	set_exception_intercept(svm, MC_VECTOR);
+ 	set_exception_intercept(svm, AC_VECTOR);
++	set_exception_intercept(svm, DB_VECTOR);
+ 
+ 	set_intercept(svm, INTERCEPT_INTR);
+ 	set_intercept(svm, INTERCEPT_NMI);
+@@ -1638,20 +1639,13 @@ static void svm_set_segment(struct kvm_vcpu *vcpu,
+ 	mark_dirty(svm->vmcb, VMCB_SEG);
+ }
+ 
+-static void update_db_bp_intercept(struct kvm_vcpu *vcpu)
++static void update_bp_intercept(struct kvm_vcpu *vcpu)
+ {
+ 	struct vcpu_svm *svm = to_svm(vcpu);
+ 
+-	clr_exception_intercept(svm, DB_VECTOR);
+ 	clr_exception_intercept(svm, BP_VECTOR);
+ 
+-	if (svm->nmi_singlestep)
+-		set_exception_intercept(svm, DB_VECTOR);
+-
+ 	if (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) {
+-		if (vcpu->guest_debug &
+-		    (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))
+-			set_exception_intercept(svm, DB_VECTOR);
+ 		if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP)
+ 			set_exception_intercept(svm, BP_VECTOR);
+ 	} else
+@@ -1757,7 +1751,6 @@ static int db_interception(struct vcpu_svm *svm)
+ 		if (!(svm->vcpu.guest_debug & KVM_GUESTDBG_SINGLESTEP))
+ 			svm->vmcb->save.rflags &=
+ 				~(X86_EFLAGS_TF | X86_EFLAGS_RF);
+-		update_db_bp_intercept(&svm->vcpu);
+ 	}
+ 
+ 	if (svm->vcpu.guest_debug &
+@@ -3751,7 +3744,6 @@ static void enable_nmi_window(struct kvm_vcpu *vcpu)
+ 	 */
+ 	svm->nmi_singlestep = true;
+ 	svm->vmcb->save.rflags |= (X86_EFLAGS_TF | X86_EFLAGS_RF);
+-	update_db_bp_intercept(vcpu);
+ }
+ 
+ static int svm_set_tss_addr(struct kvm *kvm, unsigned int addr)
+@@ -4367,7 +4359,7 @@ static struct kvm_x86_ops svm_x86_ops = {
+ 	.vcpu_load = svm_vcpu_load,
+ 	.vcpu_put = svm_vcpu_put,
+ 
+-	.update_db_bp_intercept = update_db_bp_intercept,
++	.update_db_bp_intercept = update_bp_intercept,
+ 	.get_msr = svm_get_msr,
+ 	.set_msr = svm_set_msr,
+ 	.get_segment_base = svm_get_segment_base,
+diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
+index 7c7bc8bef21f..21dda139eb3a 100644
+--- a/arch/x86/kvm/trace.h
++++ b/arch/x86/kvm/trace.h
+@@ -250,7 +250,7 @@ TRACE_EVENT(kvm_inj_virq,
+ #define kvm_trace_sym_exc						\
+ 	EXS(DE), EXS(DB), EXS(BP), EXS(OF), EXS(BR), EXS(UD), EXS(NM),	\
+ 	EXS(DF), EXS(TS), EXS(NP), EXS(SS), EXS(GP), EXS(PF),		\
+-	EXS(MF), EXS(MC)
++	EXS(MF), EXS(AC), EXS(MC)
+ 
+ /*
+  * Tracepoint for kvm interrupt injection:
+diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
+index a243854c35d5..945f9e13f1aa 100644
+--- a/arch/x86/kvm/vmx.c
++++ b/arch/x86/kvm/vmx.c
+@@ -3652,20 +3652,21 @@ static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
+ 		if (!is_paging(vcpu)) {
+ 			hw_cr4 &= ~X86_CR4_PAE;
+ 			hw_cr4 |= X86_CR4_PSE;
+-			/*
+-			 * SMEP/SMAP is disabled if CPU is in non-paging mode
+-			 * in hardware. However KVM always uses paging mode to
+-			 * emulate guest non-paging mode with TDP.
+-			 * To emulate this behavior, SMEP/SMAP needs to be
+-			 * manually disabled when guest switches to non-paging
+-			 * mode.
+-			 */
+-			hw_cr4 &= ~(X86_CR4_SMEP | X86_CR4_SMAP);
+ 		} else if (!(cr4 & X86_CR4_PAE)) {
+ 			hw_cr4 &= ~X86_CR4_PAE;
+ 		}
+ 	}
+ 
++	if (!enable_unrestricted_guest && !is_paging(vcpu))
++		/*
++		 * SMEP/SMAP is disabled if CPU is in non-paging mode in
++		 * hardware.  However KVM always uses paging mode without
++		 * unrestricted guest.
++		 * To emulate this behavior, SMEP/SMAP needs to be manually
++		 * disabled when guest switches to non-paging mode.
++		 */
++		hw_cr4 &= ~(X86_CR4_SMEP | X86_CR4_SMAP);
++
+ 	vmcs_writel(CR4_READ_SHADOW, cr4);
+ 	vmcs_writel(GUEST_CR4, hw_cr4);
+ 	return 0;
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index 47a32f743a91..fed4c84eac44 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -940,7 +940,7 @@ static u32 msrs_to_save[] = {
+ 	MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
+ #endif
+ 	MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA,
+-	MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS
++	MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS, MSR_TSC_AUX,
+ };
+ 
+ static unsigned num_msrs_to_save;
+@@ -4117,16 +4117,17 @@ static void kvm_init_msr_list(void)
+ 
+ 		/*
+ 		 * Even MSRs that are valid in the host may not be exposed
+-		 * to the guests in some cases.  We could work around this
+-		 * in VMX with the generic MSR save/load machinery, but it
+-		 * is not really worthwhile since it will really only
+-		 * happen with nested virtualization.
++		 * to the guests in some cases.
+ 		 */
+ 		switch (msrs_to_save[i]) {
+ 		case MSR_IA32_BNDCFGS:
+ 			if (!kvm_x86_ops->mpx_supported())
+ 				continue;
+ 			break;
++		case MSR_TSC_AUX:
++			if (!kvm_x86_ops->rdtscp_supported())
++				continue;
++			break;
+ 		default:
+ 			break;
+ 		}
+diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
+index 4d1c11c07fe1..f738c61bc891 100644
+--- a/arch/x86/mm/mpx.c
++++ b/arch/x86/mm/mpx.c
+@@ -120,19 +120,19 @@ static int get_reg_offset(struct insn *insn, struct pt_regs *regs,
+ 	switch (type) {
+ 	case REG_TYPE_RM:
+ 		regno = X86_MODRM_RM(insn->modrm.value);
+-		if (X86_REX_B(insn->rex_prefix.value) == 1)
++		if (X86_REX_B(insn->rex_prefix.value))
+ 			regno += 8;
+ 		break;
+ 
+ 	case REG_TYPE_INDEX:
+ 		regno = X86_SIB_INDEX(insn->sib.value);
+-		if (X86_REX_X(insn->rex_prefix.value) == 1)
++		if (X86_REX_X(insn->rex_prefix.value))
+ 			regno += 8;
+ 		break;
+ 
+ 	case REG_TYPE_BASE:
+ 		regno = X86_SIB_BASE(insn->sib.value);
+-		if (X86_REX_B(insn->rex_prefix.value) == 1)
++		if (X86_REX_B(insn->rex_prefix.value))
+ 			regno += 8;
+ 		break;
+ 
+diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
+index 90b924acd982..061e0114005e 100644
+--- a/arch/x86/mm/tlb.c
++++ b/arch/x86/mm/tlb.c
+@@ -160,7 +160,10 @@ void flush_tlb_current_task(void)
+ 	preempt_disable();
+ 
+ 	count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
++
++	/* This is an implicit full barrier that synchronizes with switch_mm. */
+ 	local_flush_tlb();
++
+ 	trace_tlb_flush(TLB_LOCAL_SHOOTDOWN, TLB_FLUSH_ALL);
+ 	if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
+ 		flush_tlb_others(mm_cpumask(mm), mm, 0UL, TLB_FLUSH_ALL);
+@@ -187,17 +190,29 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
+ 	unsigned long base_pages_to_flush = TLB_FLUSH_ALL;
+ 
+ 	preempt_disable();
+-	if (current->active_mm != mm)
++	if (current->active_mm != mm) {
++		/* Synchronize with switch_mm. */
++		smp_mb();
++
+ 		goto out;
++	}
+ 
+ 	if (!current->mm) {
+ 		leave_mm(smp_processor_id());
++
++		/* Synchronize with switch_mm. */
++		smp_mb();
++
+ 		goto out;
+ 	}
+ 
+ 	if ((end != TLB_FLUSH_ALL) && !(vmflag & VM_HUGETLB))
+ 		base_pages_to_flush = (end - start) >> PAGE_SHIFT;
+ 
++	/*
++	 * Both branches below are implicit full barriers (MOV to CR or
++	 * INVLPG) that synchronize with switch_mm.
++	 */
+ 	if (base_pages_to_flush > tlb_single_page_flush_ceiling) {
+ 		base_pages_to_flush = TLB_FLUSH_ALL;
+ 		count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
+@@ -227,10 +242,18 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long start)
+ 	preempt_disable();
+ 
+ 	if (current->active_mm == mm) {
+-		if (current->mm)
++		if (current->mm) {
++			/*
++			 * Implicit full barrier (INVLPG) that synchronizes
++			 * with switch_mm.
++			 */
+ 			__flush_tlb_one(start);
+-		else
++		} else {
+ 			leave_mm(smp_processor_id());
++
++			/* Synchronize with switch_mm. */
++			smp_mb();
++		}
+ 	}
+ 
+ 	if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
+diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c
+index 53b4c0811f4f..6d3415144dab 100644
+--- a/arch/x86/xen/suspend.c
++++ b/arch/x86/xen/suspend.c
+@@ -32,7 +32,8 @@ static void xen_hvm_post_suspend(int suspend_cancelled)
+ {
+ #ifdef CONFIG_XEN_PVHVM
+ 	int cpu;
+-	xen_hvm_init_shared_info();
++	if (!suspend_cancelled)
++	    xen_hvm_init_shared_info();
+ 	xen_callback_vector();
+ 	xen_unplug_emulated_devices();
+ 	if (xen_feature(XENFEAT_hvm_safe_pvclock)) {
+diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
+index 8a45e92ff60c..05222706dc66 100644
+--- a/drivers/char/ipmi/ipmi_si_intf.c
++++ b/drivers/char/ipmi/ipmi_si_intf.c
+@@ -404,18 +404,42 @@ static enum si_sm_result start_next_msg(struct smi_info *smi_info)
+ 	return rv;
+ }
+ 
+-static void start_check_enables(struct smi_info *smi_info)
++static void smi_mod_timer(struct smi_info *smi_info, unsigned long new_val)
++{
++	smi_info->last_timeout_jiffies = jiffies;
++	mod_timer(&smi_info->si_timer, new_val);
++	smi_info->timer_running = true;
++}
++
++/*
++ * Start a new message and (re)start the timer and thread.
++ */
++static void start_new_msg(struct smi_info *smi_info, unsigned char *msg,
++			  unsigned int size)
++{
++	smi_mod_timer(smi_info, jiffies + SI_TIMEOUT_JIFFIES);
++
++	if (smi_info->thread)
++		wake_up_process(smi_info->thread);
++
++	smi_info->handlers->start_transaction(smi_info->si_sm, msg, size);
++}
++
++static void start_check_enables(struct smi_info *smi_info, bool start_timer)
+ {
+ 	unsigned char msg[2];
+ 
+ 	msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
+ 	msg[1] = IPMI_GET_BMC_GLOBAL_ENABLES_CMD;
+ 
+-	smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
++	if (start_timer)
++		start_new_msg(smi_info, msg, 2);
++	else
++		smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
+ 	smi_info->si_state = SI_CHECKING_ENABLES;
+ }
+ 
+-static void start_clear_flags(struct smi_info *smi_info)
++static void start_clear_flags(struct smi_info *smi_info, bool start_timer)
+ {
+ 	unsigned char msg[3];
+ 
+@@ -424,7 +448,10 @@ static void start_clear_flags(struct smi_info *smi_info)
+ 	msg[1] = IPMI_CLEAR_MSG_FLAGS_CMD;
+ 	msg[2] = WDT_PRE_TIMEOUT_INT;
+ 
+-	smi_info->handlers->start_transaction(smi_info->si_sm, msg, 3);
++	if (start_timer)
++		start_new_msg(smi_info, msg, 3);
++	else
++		smi_info->handlers->start_transaction(smi_info->si_sm, msg, 3);
+ 	smi_info->si_state = SI_CLEARING_FLAGS;
+ }
+ 
+@@ -434,10 +461,8 @@ static void start_getting_msg_queue(struct smi_info *smi_info)
+ 	smi_info->curr_msg->data[1] = IPMI_GET_MSG_CMD;
+ 	smi_info->curr_msg->data_size = 2;
+ 
+-	smi_info->handlers->start_transaction(
+-		smi_info->si_sm,
+-		smi_info->curr_msg->data,
+-		smi_info->curr_msg->data_size);
++	start_new_msg(smi_info, smi_info->curr_msg->data,
++		      smi_info->curr_msg->data_size);
+ 	smi_info->si_state = SI_GETTING_MESSAGES;
+ }
+ 
+@@ -447,20 +472,11 @@ static void start_getting_events(struct smi_info *smi_info)
+ 	smi_info->curr_msg->data[1] = IPMI_READ_EVENT_MSG_BUFFER_CMD;
+ 	smi_info->curr_msg->data_size = 2;
+ 
+-	smi_info->handlers->start_transaction(
+-		smi_info->si_sm,
+-		smi_info->curr_msg->data,
+-		smi_info->curr_msg->data_size);
++	start_new_msg(smi_info, smi_info->curr_msg->data,
++		      smi_info->curr_msg->data_size);
+ 	smi_info->si_state = SI_GETTING_EVENTS;
+ }
+ 
+-static void smi_mod_timer(struct smi_info *smi_info, unsigned long new_val)
+-{
+-	smi_info->last_timeout_jiffies = jiffies;
+-	mod_timer(&smi_info->si_timer, new_val);
+-	smi_info->timer_running = true;
+-}
+-
+ /*
+  * When we have a situtaion where we run out of memory and cannot
+  * allocate messages, we just leave them in the BMC and run the system
+@@ -470,11 +486,11 @@ static void smi_mod_timer(struct smi_info *smi_info, unsigned long new_val)
+  * Note that we cannot just use disable_irq(), since the interrupt may
+  * be shared.
+  */
+-static inline bool disable_si_irq(struct smi_info *smi_info)
++static inline bool disable_si_irq(struct smi_info *smi_info, bool start_timer)
+ {
+ 	if ((smi_info->irq) && (!smi_info->interrupt_disabled)) {
+ 		smi_info->interrupt_disabled = true;
+-		start_check_enables(smi_info);
++		start_check_enables(smi_info, start_timer);
+ 		return true;
+ 	}
+ 	return false;
+@@ -484,7 +500,7 @@ static inline bool enable_si_irq(struct smi_info *smi_info)
+ {
+ 	if ((smi_info->irq) && (smi_info->interrupt_disabled)) {
+ 		smi_info->interrupt_disabled = false;
+-		start_check_enables(smi_info);
++		start_check_enables(smi_info, true);
+ 		return true;
+ 	}
+ 	return false;
+@@ -502,7 +518,7 @@ static struct ipmi_smi_msg *alloc_msg_handle_irq(struct smi_info *smi_info)
+ 
+ 	msg = ipmi_alloc_smi_msg();
+ 	if (!msg) {
+-		if (!disable_si_irq(smi_info))
++		if (!disable_si_irq(smi_info, true))
+ 			smi_info->si_state = SI_NORMAL;
+ 	} else if (enable_si_irq(smi_info)) {
+ 		ipmi_free_smi_msg(msg);
+@@ -518,7 +534,7 @@ static void handle_flags(struct smi_info *smi_info)
+ 		/* Watchdog pre-timeout */
+ 		smi_inc_stat(smi_info, watchdog_pretimeouts);
+ 
+-		start_clear_flags(smi_info);
++		start_clear_flags(smi_info, true);
+ 		smi_info->msg_flags &= ~WDT_PRE_TIMEOUT_INT;
+ 		if (smi_info->intf)
+ 			ipmi_smi_watchdog_pretimeout(smi_info->intf);
+@@ -870,8 +886,7 @@ static enum si_sm_result smi_event_handler(struct smi_info *smi_info,
+ 			msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
+ 			msg[1] = IPMI_GET_MSG_FLAGS_CMD;
+ 
+-			smi_info->handlers->start_transaction(
+-				smi_info->si_sm, msg, 2);
++			start_new_msg(smi_info, msg, 2);
+ 			smi_info->si_state = SI_GETTING_FLAGS;
+ 			goto restart;
+ 		}
+@@ -901,7 +916,7 @@ static enum si_sm_result smi_event_handler(struct smi_info *smi_info,
+ 		 * disable and messages disabled.
+ 		 */
+ 		if (smi_info->supports_event_msg_buff || smi_info->irq) {
+-			start_check_enables(smi_info);
++			start_check_enables(smi_info, true);
+ 		} else {
+ 			smi_info->curr_msg = alloc_msg_handle_irq(smi_info);
+ 			if (!smi_info->curr_msg)
+@@ -1203,14 +1218,14 @@ static int smi_start_processing(void       *send_info,
+ 
+ 	new_smi->intf = intf;
+ 
+-	/* Try to claim any interrupts. */
+-	if (new_smi->irq_setup)
+-		new_smi->irq_setup(new_smi);
+-
+ 	/* Set up the timer that drives the interface. */
+ 	setup_timer(&new_smi->si_timer, smi_timeout, (long)new_smi);
+ 	smi_mod_timer(new_smi, jiffies + SI_TIMEOUT_JIFFIES);
+ 
++	/* Try to claim any interrupts. */
++	if (new_smi->irq_setup)
++		new_smi->irq_setup(new_smi);
++
+ 	/*
+ 	 * Check if the user forcefully enabled the daemon.
+ 	 */
+@@ -3515,7 +3530,7 @@ static int try_smi_init(struct smi_info *new_smi)
+ 	 * Start clearing the flags before we enable interrupts or the
+ 	 * timer to avoid racing with the timer.
+ 	 */
+-	start_clear_flags(new_smi);
++	start_clear_flags(new_smi, false);
+ 
+ 	/*
+ 	 * IRQ is defined to be set when non-zero.  req_events will
+@@ -3817,7 +3832,7 @@ static void cleanup_one_si(struct smi_info *to_clean)
+ 		poll(to_clean);
+ 		schedule_timeout_uninterruptible(1);
+ 	}
+-	disable_si_irq(to_clean);
++	disable_si_irq(to_clean, false);
+ 	while (to_clean->curr_msg || (to_clean->si_state != SI_NORMAL)) {
+ 		poll(to_clean);
+ 		schedule_timeout_uninterruptible(1);
+diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
+index 30f522848c73..c19e7fc717c3 100644
+--- a/drivers/connector/connector.c
++++ b/drivers/connector/connector.c
+@@ -178,26 +178,21 @@ static int cn_call_callback(struct sk_buff *skb)
+  *
+  * It checks skb, netlink header and msg sizes, and calls callback helper.
+  */
+-static void cn_rx_skb(struct sk_buff *__skb)
++static void cn_rx_skb(struct sk_buff *skb)
+ {
+ 	struct nlmsghdr *nlh;
+-	struct sk_buff *skb;
+ 	int len, err;
+ 
+-	skb = skb_get(__skb);
+-
+ 	if (skb->len >= NLMSG_HDRLEN) {
+ 		nlh = nlmsg_hdr(skb);
+ 		len = nlmsg_len(nlh);
+ 
+ 		if (len < (int)sizeof(struct cn_msg) ||
+ 		    skb->len < nlh->nlmsg_len ||
+-		    len > CONNECTOR_MAX_MSG_SIZE) {
+-			kfree_skb(skb);
++		    len > CONNECTOR_MAX_MSG_SIZE)
+ 			return;
+-		}
+ 
+-		err = cn_call_callback(skb);
++		err = cn_call_callback(skb_get(skb));
+ 		if (err < 0)
+ 			kfree_skb(skb);
+ 	}
+diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
+index 722a925795a2..9ce9dfeb1258 100644
+--- a/drivers/hid/hid-core.c
++++ b/drivers/hid/hid-core.c
+@@ -1589,7 +1589,7 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
+ 		"Multi-Axis Controller"
+ 	};
+ 	const char *type, *bus;
+-	char buf[64];
++	char buf[64] = "";
+ 	unsigned int i;
+ 	int len;
+ 	int ret;
+diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
+index 8b0178db6a04..b85a8614c128 100644
+--- a/drivers/iommu/intel-iommu.c
++++ b/drivers/iommu/intel-iommu.c
+@@ -3928,14 +3928,17 @@ int dmar_find_matched_atsr_unit(struct pci_dev *dev)
+ 	dev = pci_physfn(dev);
+ 	for (bus = dev->bus; bus; bus = bus->parent) {
+ 		bridge = bus->self;
+-		if (!bridge || !pci_is_pcie(bridge) ||
++		/* If it's an integrated device, allow ATS */
++		if (!bridge)
++			return 1;
++		/* Connected via non-PCIe: no ATS */
++		if (!pci_is_pcie(bridge) ||
+ 		    pci_pcie_type(bridge) == PCI_EXP_TYPE_PCI_BRIDGE)
+ 			return 0;
++		/* If we found the root port, look it up in the ATSR */
+ 		if (pci_pcie_type(bridge) == PCI_EXP_TYPE_ROOT_PORT)
+ 			break;
+ 	}
+-	if (!bridge)
+-		return 0;
+ 
+ 	rcu_read_lock();
+ 	list_for_each_entry_rcu(atsru, &dmar_atsr_units, list) {
+diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
+index c4198fa490bf..9c1e8adaf4fc 100644
+--- a/drivers/isdn/i4l/isdn_ppp.c
++++ b/drivers/isdn/i4l/isdn_ppp.c
+@@ -301,6 +301,8 @@ isdn_ppp_open(int min, struct file *file)
+ 	is->compflags = 0;
+ 
+ 	is->reset = isdn_ppp_ccp_reset_alloc(is);
++	if (!is->reset)
++		return -ENOMEM;
+ 
+ 	is->lp = NULL;
+ 	is->mp_seqno = 0;       /* MP sequence number */
+@@ -320,6 +322,10 @@ isdn_ppp_open(int min, struct file *file)
+ 	 * VJ header compression init
+ 	 */
+ 	is->slcomp = slhc_init(16, 16);	/* not necessary for 2. link in bundle */
++	if (IS_ERR(is->slcomp)) {
++		isdn_ppp_ccp_reset_free(is);
++		return PTR_ERR(is->slcomp);
++	}
+ #endif
+ #ifdef CONFIG_IPPP_FILTER
+ 	is->pass_filter = NULL;
+@@ -567,10 +573,8 @@ isdn_ppp_ioctl(int min, struct file *file, unsigned int cmd, unsigned long arg)
+ 			is->maxcid = val;
+ #ifdef CONFIG_ISDN_PPP_VJ
+ 			sltmp = slhc_init(16, val);
+-			if (!sltmp) {
+-				printk(KERN_ERR "ippp, can't realloc slhc struct\n");
+-				return -ENOMEM;
+-			}
++			if (IS_ERR(sltmp))
++				return PTR_ERR(sltmp);
+ 			if (is->slcomp)
+ 				slhc_free(is->slcomp);
+ 			is->slcomp = sltmp;
+diff --git a/drivers/media/platform/vivid/vivid-osd.c b/drivers/media/platform/vivid/vivid-osd.c
+index 084d346fb4c4..e15eef6a94e5 100644
+--- a/drivers/media/platform/vivid/vivid-osd.c
++++ b/drivers/media/platform/vivid/vivid-osd.c
+@@ -85,6 +85,7 @@ static int vivid_fb_ioctl(struct fb_info *info, unsigned cmd, unsigned long arg)
+ 	case FBIOGET_VBLANK: {
+ 		struct fb_vblank vblank;
+ 
++		memset(&vblank, 0, sizeof(vblank));
+ 		vblank.flags = FB_VBLANK_HAVE_COUNT | FB_VBLANK_HAVE_VCOUNT |
+ 			FB_VBLANK_HAVE_VSYNC;
+ 		vblank.count = 0;
+diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c
+index 4069234abed5..a50750ce511d 100644
+--- a/drivers/media/usb/airspy/airspy.c
++++ b/drivers/media/usb/airspy/airspy.c
+@@ -132,7 +132,7 @@ struct airspy {
+ 	int            urbs_submitted;
+ 
+ 	/* USB control message buffer */
+-	#define BUF_SIZE 24
++	#define BUF_SIZE 128
+ 	u8 buf[BUF_SIZE];
+ 
+ 	/* Current configuration */
+diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
+index 16d87bf8ac3c..72ba774df7a7 100644
+--- a/drivers/net/bonding/bond_main.c
++++ b/drivers/net/bonding/bond_main.c
+@@ -1194,7 +1194,6 @@ static int bond_master_upper_dev_link(struct net_device *bond_dev,
+ 	err = netdev_master_upper_dev_link_private(slave_dev, bond_dev, slave);
+ 	if (err)
+ 		return err;
+-	slave_dev->flags |= IFF_SLAVE;
+ 	rtmsg_ifinfo(RTM_NEWLINK, slave_dev, IFF_SLAVE, GFP_KERNEL);
+ 	return 0;
+ }
+@@ -1452,6 +1451,9 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
+ 		}
+ 	}
+ 
++	/* set slave flag before open to prevent IPv6 addrconf */
++	slave_dev->flags |= IFF_SLAVE;
++
+ 	/* open the slave since the application closed it */
+ 	res = dev_open(slave_dev);
+ 	if (res) {
+@@ -1712,6 +1714,7 @@ err_close:
+ 	dev_close(slave_dev);
+ 
+ err_restore_mac:
++	slave_dev->flags &= ~IFF_SLAVE;
+ 	if (!bond->params.fail_over_mac ||
+ 	    BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
+ 		/* XXX TODO - fom follow mode needs to change master's
+diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
+index 9d15566521a7..cfe49a07c7c1 100644
+--- a/drivers/net/ppp/ppp_generic.c
++++ b/drivers/net/ppp/ppp_generic.c
+@@ -715,10 +715,8 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+ 			val &= 0xffff;
+ 		}
+ 		vj = slhc_init(val2+1, val+1);
+-		if (!vj) {
+-			netdev_err(ppp->dev,
+-				   "PPP: no memory (VJ compressor)\n");
+-			err = -ENOMEM;
++		if (IS_ERR(vj)) {
++			err = PTR_ERR(vj);
+ 			break;
+ 		}
+ 		ppp_lock(ppp);
+diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c
+index 079f7adfcde5..27ed25252aac 100644
+--- a/drivers/net/slip/slhc.c
++++ b/drivers/net/slip/slhc.c
+@@ -84,8 +84,9 @@ static long decode(unsigned char **cpp);
+ static unsigned char * put16(unsigned char *cp, unsigned short x);
+ static unsigned short pull16(unsigned char **cpp);
+ 
+-/* Initialize compression data structure
++/* Allocate compression data structure
+  *	slots must be in range 0 to 255 (zero meaning no compression)
++ * Returns pointer to structure or ERR_PTR() on error.
+  */
+ struct slcompress *
+ slhc_init(int rslots, int tslots)
+@@ -94,11 +95,14 @@ slhc_init(int rslots, int tslots)
+ 	register struct cstate *ts;
+ 	struct slcompress *comp;
+ 
++	if (rslots < 0 || rslots > 255 || tslots < 0 || tslots > 255)
++		return ERR_PTR(-EINVAL);
++
+ 	comp = kzalloc(sizeof(struct slcompress), GFP_KERNEL);
+ 	if (! comp)
+ 		goto out_fail;
+ 
+-	if ( rslots > 0  &&  rslots < 256 ) {
++	if (rslots > 0) {
+ 		size_t rsize = rslots * sizeof(struct cstate);
+ 		comp->rstate = kzalloc(rsize, GFP_KERNEL);
+ 		if (! comp->rstate)
+@@ -106,7 +110,7 @@ slhc_init(int rslots, int tslots)
+ 		comp->rslot_limit = rslots - 1;
+ 	}
+ 
+-	if ( tslots > 0  &&  tslots < 256 ) {
++	if (tslots > 0) {
+ 		size_t tsize = tslots * sizeof(struct cstate);
+ 		comp->tstate = kzalloc(tsize, GFP_KERNEL);
+ 		if (! comp->tstate)
+@@ -141,7 +145,7 @@ out_free2:
+ out_free:
+ 	kfree(comp);
+ out_fail:
+-	return NULL;
++	return ERR_PTR(-ENOMEM);
+ }
+ 
+ 
+diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
+index 05387b1e2e95..a17d86a57734 100644
+--- a/drivers/net/slip/slip.c
++++ b/drivers/net/slip/slip.c
+@@ -164,7 +164,7 @@ static int sl_alloc_bufs(struct slip *sl, int mtu)
+ 	if (cbuff == NULL)
+ 		goto err_exit;
+ 	slcomp = slhc_init(16, 16);
+-	if (slcomp == NULL)
++	if (IS_ERR(slcomp))
+ 		goto err_exit;
+ #endif
+ 	spin_lock_bh(&sl->lock);
+diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
+index 6928448f6b7f..2b45d0168c3c 100644
+--- a/drivers/net/team/team.c
++++ b/drivers/net/team/team.c
+@@ -1845,10 +1845,10 @@ static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
+ 	struct team *team = netdev_priv(dev);
+ 	struct team_port *port;
+ 
+-	rcu_read_lock();
+-	list_for_each_entry_rcu(port, &team->port_list, list)
++	mutex_lock(&team->lock);
++	list_for_each_entry(port, &team->port_list, list)
+ 		vlan_vid_del(port->dev, proto, vid);
+-	rcu_read_unlock();
++	mutex_unlock(&team->lock);
+ 
+ 	return 0;
+ }
+diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
+index e4b7a47a825c..5efaa9ab5af5 100644
+--- a/drivers/net/usb/cdc_mbim.c
++++ b/drivers/net/usb/cdc_mbim.c
+@@ -100,7 +100,7 @@ static const struct net_device_ops cdc_mbim_netdev_ops = {
+ 	.ndo_stop             = usbnet_stop,
+ 	.ndo_start_xmit       = usbnet_start_xmit,
+ 	.ndo_tx_timeout       = usbnet_tx_timeout,
+-	.ndo_change_mtu       = usbnet_change_mtu,
++	.ndo_change_mtu       = cdc_ncm_change_mtu,
+ 	.ndo_set_mac_address  = eth_mac_addr,
+ 	.ndo_validate_addr    = eth_validate_addr,
+ 	.ndo_vlan_rx_add_vid  = cdc_mbim_rx_add_vid,
+diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
+index 8067b8fbb0ee..0b481c30979b 100644
+--- a/drivers/net/usb/cdc_ncm.c
++++ b/drivers/net/usb/cdc_ncm.c
+@@ -41,6 +41,7 @@
+ #include <linux/module.h>
+ #include <linux/netdevice.h>
+ #include <linux/ctype.h>
++#include <linux/etherdevice.h>
+ #include <linux/ethtool.h>
+ #include <linux/workqueue.h>
+ #include <linux/mii.h>
+@@ -687,6 +688,33 @@ static void cdc_ncm_free(struct cdc_ncm_ctx *ctx)
+ 	kfree(ctx);
+ }
+ 
++/* we need to override the usbnet change_mtu ndo for two reasons:
++ *  - respect the negotiated maximum datagram size
++ *  - avoid unwanted changes to rx and tx buffers
++ */
++int cdc_ncm_change_mtu(struct net_device *net, int new_mtu)
++{
++	struct usbnet *dev = netdev_priv(net);
++	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
++	int maxmtu = ctx->max_datagram_size - cdc_ncm_eth_hlen(dev);
++
++	if (new_mtu <= 0 || new_mtu > maxmtu)
++		return -EINVAL;
++	net->mtu = new_mtu;
++	return 0;
++}
++EXPORT_SYMBOL_GPL(cdc_ncm_change_mtu);
++
++static const struct net_device_ops cdc_ncm_netdev_ops = {
++	.ndo_open	     = usbnet_open,
++	.ndo_stop	     = usbnet_stop,
++	.ndo_start_xmit	     = usbnet_start_xmit,
++	.ndo_tx_timeout	     = usbnet_tx_timeout,
++	.ndo_change_mtu	     = cdc_ncm_change_mtu,
++	.ndo_set_mac_address = eth_mac_addr,
++	.ndo_validate_addr   = eth_validate_addr,
++};
++
+ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting)
+ {
+ 	const struct usb_cdc_union_desc *union_desc = NULL;
+@@ -861,6 +889,9 @@ advance:
+ 	/* add our sysfs attrs */
+ 	dev->net->sysfs_groups[0] = &cdc_ncm_sysfs_attr_group;
+ 
++	/* must handle MTU changes */
++	dev->net->netdev_ops = &cdc_ncm_netdev_ops;
++
+ 	return 0;
+ 
+ error2:
+diff --git a/drivers/net/veth.c b/drivers/net/veth.c
+index c8186ffda1a3..2e61a799f32a 100644
+--- a/drivers/net/veth.c
++++ b/drivers/net/veth.c
+@@ -117,12 +117,6 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
+ 		kfree_skb(skb);
+ 		goto drop;
+ 	}
+-	/* don't change ip_summed == CHECKSUM_PARTIAL, as that
+-	 * will cause bad checksum on forwarded packets
+-	 */
+-	if (skb->ip_summed == CHECKSUM_NONE &&
+-	    rcv->features & NETIF_F_RXCSUM)
+-		skb->ip_summed = CHECKSUM_UNNECESSARY;
+ 
+ 	if (likely(dev_forward_skb(rcv, skb) == NET_RX_SUCCESS)) {
+ 		struct pcpu_vstats *stats = this_cpu_ptr(dev->vstats);
+diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
+index 0085b8df83e2..940f78e41993 100644
+--- a/drivers/net/vxlan.c
++++ b/drivers/net/vxlan.c
+@@ -2581,7 +2581,7 @@ static int vxlan_newlink(struct net *src_net, struct net_device *dev,
+ 			 struct nlattr *tb[], struct nlattr *data[])
+ {
+ 	struct vxlan_net *vn = net_generic(src_net, vxlan_net_id);
+-	struct vxlan_dev *vxlan = netdev_priv(dev);
++	struct vxlan_dev *vxlan = netdev_priv(dev), *tmp;
+ 	struct vxlan_rdst *dst = &vxlan->default_dst;
+ 	__u32 vni;
+ 	int err;
+@@ -2714,9 +2714,13 @@ static int vxlan_newlink(struct net *src_net, struct net_device *dev,
+ 	if (data[IFLA_VXLAN_REMCSUM_NOPARTIAL])
+ 		vxlan->flags |= VXLAN_F_REMCSUM_NOPARTIAL;
+ 
+-	if (vxlan_find_vni(src_net, vni, use_ipv6 ? AF_INET6 : AF_INET,
+-			   vxlan->dst_port, vxlan->flags)) {
+-		pr_info("duplicate VNI %u\n", vni);
++	list_for_each_entry(tmp, &vn->vxlan_list, next) {
++		if (tmp->default_dst.remote_vni == vni &&
++		    (tmp->default_dst.remote_ip.sa.sa_family == AF_INET6 ||
++		     tmp->saddr.sa.sa_family == AF_INET6) == use_ipv6 &&
++		    tmp->dst_port == vxlan->dst_port &&
++		    (tmp->flags & VXLAN_F_RCV_FLAGS) ==
++		    (vxlan->flags & VXLAN_F_RCV_FLAGS))
+ 		return -EEXIST;
+ 	}
+ 
+diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
+index 0866c5dfdf87..5e5b6184e720 100644
+--- a/drivers/net/xen-netback/netback.c
++++ b/drivers/net/xen-netback/netback.c
+@@ -2007,8 +2007,11 @@ static int __init netback_init(void)
+ 	if (!xen_domain())
+ 		return -ENODEV;
+ 
+-	/* Allow as many queues as there are CPUs, by default */
+-	xenvif_max_queues = num_online_cpus();
++	/* Allow as many queues as there are CPUs if user has not
++	 * specified a value.
++	 */
++	if (xenvif_max_queues == 0)
++		xenvif_max_queues = num_online_cpus();
+ 
+ 	if (fatal_skb_slots < XEN_NETBK_LEGACY_SLOTS_MAX) {
+ 		pr_info("fatal_skb_slots too small (%d), bump it to XEN_NETBK_LEGACY_SLOTS_MAX (%d)\n",
+diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
+index 52f081f4dfd5..fd51626e859e 100644
+--- a/drivers/net/xen-netfront.c
++++ b/drivers/net/xen-netfront.c
+@@ -1710,19 +1710,19 @@ static void xennet_destroy_queues(struct netfront_info *info)
+ }
+ 
+ static int xennet_create_queues(struct netfront_info *info,
+-				unsigned int num_queues)
++				unsigned int *num_queues)
+ {
+ 	unsigned int i;
+ 	int ret;
+ 
+-	info->queues = kcalloc(num_queues, sizeof(struct netfront_queue),
++	info->queues = kcalloc(*num_queues, sizeof(struct netfront_queue),
+ 			       GFP_KERNEL);
+ 	if (!info->queues)
+ 		return -ENOMEM;
+ 
+ 	rtnl_lock();
+ 
+-	for (i = 0; i < num_queues; i++) {
++	for (i = 0; i < *num_queues; i++) {
+ 		struct netfront_queue *queue = &info->queues[i];
+ 
+ 		queue->id = i;
+@@ -1732,7 +1732,7 @@ static int xennet_create_queues(struct netfront_info *info,
+ 		if (ret < 0) {
+ 			dev_warn(&info->netdev->dev,
+ 				 "only created %d queues\n", i);
+-			num_queues = i;
++			*num_queues = i;
+ 			break;
+ 		}
+ 
+@@ -1742,11 +1742,11 @@ static int xennet_create_queues(struct netfront_info *info,
+ 			napi_enable(&queue->napi);
+ 	}
+ 
+-	netif_set_real_num_tx_queues(info->netdev, num_queues);
++	netif_set_real_num_tx_queues(info->netdev, *num_queues);
+ 
+ 	rtnl_unlock();
+ 
+-	if (num_queues == 0) {
++	if (*num_queues == 0) {
+ 		dev_err(&info->netdev->dev, "no queues\n");
+ 		return -EINVAL;
+ 	}
+@@ -1792,7 +1792,7 @@ static int talk_to_netback(struct xenbus_device *dev,
+ 	if (info->queues)
+ 		xennet_destroy_queues(info);
+ 
+-	err = xennet_create_queues(info, num_queues);
++	err = xennet_create_queues(info, &num_queues);
+ 	if (err < 0)
+ 		goto destroy_ring;
+ 
+@@ -2140,8 +2140,11 @@ static int __init netif_init(void)
+ 
+ 	pr_info("Initialising Xen virtual ethernet driver\n");
+ 
+-	/* Allow as many queues as there are CPUs, by default */
+-	xennet_max_queues = num_online_cpus();
++	/* Allow as many queues as there are CPUs if user has not
++	 * specified a value.
++	 */
++	if (xennet_max_queues == 0)
++		xennet_max_queues = num_online_cpus();
+ 
+ 	return xenbus_register_frontend(&netfront_driver);
+ }
+diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
+index 761e77bfce5d..e56f1569f6c3 100644
+--- a/drivers/parisc/iommu-helpers.h
++++ b/drivers/parisc/iommu-helpers.h
+@@ -104,7 +104,11 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
+ 	struct scatterlist *contig_sg;	   /* contig chunk head */
+ 	unsigned long dma_offset, dma_len; /* start/len of DMA stream */
+ 	unsigned int n_mappings = 0;
+-	unsigned int max_seg_size = dma_get_max_seg_size(dev);
++	unsigned int max_seg_size = min(dma_get_max_seg_size(dev),
++					(unsigned)DMA_CHUNK_SIZE);
++	unsigned int max_seg_boundary = dma_get_seg_boundary(dev) + 1;
++	if (max_seg_boundary)	/* check if the addition above didn't overflow */
++		max_seg_size = min(max_seg_size, max_seg_boundary);
+ 
+ 	while (nents > 0) {
+ 
+@@ -138,14 +142,11 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
+ 
+ 			/*
+ 			** First make sure current dma stream won't
+-			** exceed DMA_CHUNK_SIZE if we coalesce the
++			** exceed max_seg_size if we coalesce the
+ 			** next entry.
+ 			*/   
+-			if(unlikely(ALIGN(dma_len + dma_offset + startsg->length,
+-					    IOVP_SIZE) > DMA_CHUNK_SIZE))
+-				break;
+-
+-			if (startsg->length + dma_len > max_seg_size)
++			if (unlikely(ALIGN(dma_len + dma_offset + startsg->length, IOVP_SIZE) >
++				     max_seg_size))
+ 				break;
+ 
+ 			/*
+diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
+index d542e06d6cd3..10e520d6bb75 100644
+--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
++++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
+@@ -1268,6 +1268,7 @@ static int
+ echo_copyout_lsm(struct lov_stripe_md *lsm, void *_ulsm, int ulsm_nob)
+ {
+ 	struct lov_stripe_md *ulsm = _ulsm;
++	struct lov_oinfo **p;
+ 	int nob, i;
+ 
+ 	nob = offsetof(struct lov_stripe_md, lsm_oinfo[lsm->lsm_stripe_count]);
+@@ -1277,9 +1278,10 @@ echo_copyout_lsm(struct lov_stripe_md *lsm, void *_ulsm, int ulsm_nob)
+ 	if (copy_to_user(ulsm, lsm, sizeof(*ulsm)))
+ 		return -EFAULT;
+ 
+-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
+-		if (copy_to_user(ulsm->lsm_oinfo[i], lsm->lsm_oinfo[i],
+-				      sizeof(lsm->lsm_oinfo[0])))
++	for (i = 0, p = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++, p++) {
++		struct lov_oinfo __user *up;
++		if (get_user(up, ulsm->lsm_oinfo + i) ||
++		    copy_to_user(up, *p, sizeof(struct lov_oinfo)))
+ 			return -EFAULT;
+ 	}
+ 	return 0;
+@@ -1287,9 +1289,10 @@ echo_copyout_lsm(struct lov_stripe_md *lsm, void *_ulsm, int ulsm_nob)
+ 
+ static int
+ echo_copyin_lsm(struct echo_device *ed, struct lov_stripe_md *lsm,
+-		 void *ulsm, int ulsm_nob)
++		struct lov_stripe_md __user *ulsm, int ulsm_nob)
+ {
+ 	struct echo_client_obd *ec = ed->ed_ec;
++	struct lov_oinfo **p;
+ 	int		     i;
+ 
+ 	if (ulsm_nob < sizeof(*lsm))
+@@ -1305,11 +1308,10 @@ echo_copyin_lsm(struct echo_device *ed, struct lov_stripe_md *lsm,
+ 		return -EINVAL;
+ 
+ 
+-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
+-		if (copy_from_user(lsm->lsm_oinfo[i],
+-				       ((struct lov_stripe_md *)ulsm)-> \
+-				       lsm_oinfo[i],
+-				       sizeof(lsm->lsm_oinfo[0])))
++	for (i = 0, p = lsm->lsm_oinfo; i < lsm->lsm_stripe_count; i++, p++) {
++		struct lov_oinfo __user *up;
++		if (get_user(up, ulsm->lsm_oinfo + i) ||
++		    copy_from_user(*p, up, sizeof(struct lov_oinfo)))
+ 			return -EFAULT;
+ 	}
+ 	return 0;
+diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
+index d68c4a4db682..ee11b301f3da 100644
+--- a/drivers/usb/core/hub.c
++++ b/drivers/usb/core/hub.c
+@@ -1034,10 +1034,20 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
+ 	unsigned delay;
+ 
+ 	/* Continue a partial initialization */
+-	if (type == HUB_INIT2)
+-		goto init2;
+-	if (type == HUB_INIT3)
++	if (type == HUB_INIT2 || type == HUB_INIT3) {
++		device_lock(hub->intfdev);
++
++		/* Was the hub disconnected while we were waiting? */
++		if (hub->disconnected) {
++			device_unlock(hub->intfdev);
++			kref_put(&hub->kref, hub_release);
++			return;
++		}
++		if (type == HUB_INIT2)
++			goto init2;
+ 		goto init3;
++	}
++	kref_get(&hub->kref);
+ 
+ 	/* The superspeed hub except for root hub has to use Hub Depth
+ 	 * value as an offset into the route string to locate the bits
+@@ -1235,6 +1245,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
+ 			queue_delayed_work(system_power_efficient_wq,
+ 					&hub->init_work,
+ 					msecs_to_jiffies(delay));
++			device_unlock(hub->intfdev);
+ 			return;		/* Continues at init3: below */
+ 		} else {
+ 			msleep(delay);
+@@ -1256,6 +1267,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
+ 	/* Allow autosuspend if it was suppressed */
+ 	if (type <= HUB_INIT3)
+ 		usb_autopm_put_interface_async(to_usb_interface(hub->intfdev));
++
++	if (type == HUB_INIT2 || type == HUB_INIT3)
++		device_unlock(hub->intfdev);
++
++	kref_put(&hub->kref, hub_release);
+ }
+ 
+ /* Implement the continuations for the delays above */
+diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
+index 1e6d7579709e..f6bb118e4501 100644
+--- a/drivers/usb/host/xhci.c
++++ b/drivers/usb/host/xhci.c
+@@ -4794,8 +4794,16 @@ int xhci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hdev,
+ 	ctrl_ctx->add_flags |= cpu_to_le32(SLOT_FLAG);
+ 	slot_ctx = xhci_get_slot_ctx(xhci, config_cmd->in_ctx);
+ 	slot_ctx->dev_info |= cpu_to_le32(DEV_HUB);
++	/*
++	 * refer to section 6.2.2: MTT should be 0 for full speed hub,
++	 * but it may be already set to 1 when setup an xHCI virtual
++	 * device, so clear it anyway.
++	 */
+ 	if (tt->multi)
+ 		slot_ctx->dev_info |= cpu_to_le32(DEV_MTT);
++	else if (hdev->speed == USB_SPEED_FULL)
++		slot_ctx->dev_info &= cpu_to_le32(~DEV_MTT);
++
+ 	if (xhci->hci_version > 0x95) {
+ 		xhci_dbg(xhci, "xHCI version %x needs hub "
+ 				"TT think time and number of ports\n",
+@@ -5046,6 +5054,10 @@ static int __init xhci_hcd_init(void)
+ 	BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8);
+ 	/* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
+ 	BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
++
++	if (usb_disabled())
++		return -ENODEV;
++
+ 	return 0;
+ }
+ 
+diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
+index 7d4f51a32e66..59b2126b21a3 100644
+--- a/drivers/usb/serial/cp210x.c
++++ b/drivers/usb/serial/cp210x.c
+@@ -160,6 +160,7 @@ static const struct usb_device_id id_table[] = {
+ 	{ USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
+ 	{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
+ 	{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
++	{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+ 	{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
+ 	{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
+ 	{ USB_DEVICE(0x1BA4, 0x0002) },	/* Silicon Labs 358x factory default */
+diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
+index f51a5d52c0ed..ec1b8f2c1183 100644
+--- a/drivers/usb/serial/ipaq.c
++++ b/drivers/usb/serial/ipaq.c
+@@ -531,7 +531,8 @@ static int ipaq_open(struct tty_struct *tty,
+ 	 * through. Since this has a reasonably high failure rate, we retry
+ 	 * several times.
+ 	 */
+-	while (retries--) {
++	while (retries) {
++		retries--;
+ 		result = usb_control_msg(serial->dev,
+ 				usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21,
+ 				0x1, 0, NULL, 0, 100);
+diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
+index 4bd23bba816f..ee71baddbb10 100644
+--- a/drivers/xen/gntdev.c
++++ b/drivers/xen/gntdev.c
+@@ -804,7 +804,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
+ 
+ 	vma->vm_ops = &gntdev_vmops;
+ 
+-	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
++	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_IO;
+ 
+ 	if (use_ptemod)
+ 		vma->vm_flags |= VM_DONTCOPY;
+diff --git a/fs/direct-io.c b/fs/direct-io.c
+index 745d2342651a..d83a021a659f 100644
+--- a/fs/direct-io.c
++++ b/fs/direct-io.c
+@@ -1159,6 +1159,16 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
+ 		}
+ 	}
+ 
++	/* Once we sampled i_size check for reads beyond EOF */
++	dio->i_size = i_size_read(inode);
++	if (iov_iter_rw(iter) == READ && offset >= dio->i_size) {
++		if (dio->flags & DIO_LOCKING)
++			mutex_unlock(&inode->i_mutex);
++		kmem_cache_free(dio_cache, dio);
++		retval = 0;
++		goto out;
++	}
++
+ 	/*
+ 	 * For file extending writes updating i_size before data writeouts
+ 	 * complete can expose uninitialized blocks in dumb filesystems.
+@@ -1212,7 +1222,6 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
+ 	sdio.next_block_for_io = -1;
+ 
+ 	dio->iocb = iocb;
+-	dio->i_size = i_size_read(inode);
+ 
+ 	spin_lock_init(&dio->bio_lock);
+ 	dio->refcount = 1;
+diff --git a/include/linux/filter.h b/include/linux/filter.h
+index fa11b3a367be..1ce6e1049a3b 100644
+--- a/include/linux/filter.h
++++ b/include/linux/filter.h
+@@ -428,6 +428,25 @@ static inline void bpf_jit_free(struct bpf_prog *fp)
+ 
+ #define BPF_ANC		BIT(15)
+ 
++static inline bool bpf_needs_clear_a(const struct sock_filter *first)
++{
++	switch (first->code) {
++	case BPF_RET | BPF_K:
++	case BPF_LD | BPF_W | BPF_LEN:
++		return false;
++
++	case BPF_LD | BPF_W | BPF_ABS:
++	case BPF_LD | BPF_H | BPF_ABS:
++	case BPF_LD | BPF_B | BPF_ABS:
++		if (first->k == SKF_AD_OFF + SKF_AD_ALU_XOR_X)
++			return true;
++		return false;
++
++	default:
++		return true;
++	}
++}
++
+ static inline u16 bpf_anc_helper(const struct sock_filter *ftest)
+ {
+ 	BUG_ON(ftest->code & BPF_ANC);
+diff --git a/include/linux/sched.h b/include/linux/sched.h
+index 61f4f2d5c882..9128b4e9f541 100644
+--- a/include/linux/sched.h
++++ b/include/linux/sched.h
+@@ -802,6 +802,7 @@ struct user_struct {
+ 	unsigned long mq_bytes;	/* How many bytes can be allocated to mqueue? */
+ #endif
+ 	unsigned long locked_shm; /* How many pages of mlocked shm ? */
++	unsigned long unix_inflight;	/* How many files in flight in unix sockets */
+ 
+ #ifdef CONFIG_KEYS
+ 	struct key *uid_keyring;	/* UID specific keyring */
+diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
+index 4307e20a4a4a..1f17abe23725 100644
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -3320,7 +3320,8 @@ struct skb_gso_cb {
+ 	int	encap_level;
+ 	__u16	csum_start;
+ };
+-#define SKB_GSO_CB(skb) ((struct skb_gso_cb *)(skb)->cb)
++#define SKB_SGO_CB_OFFSET	32
++#define SKB_GSO_CB(skb) ((struct skb_gso_cb *)((skb)->cb + SKB_SGO_CB_OFFSET))
+ 
+ static inline int skb_tnl_header_len(const struct sk_buff *inner_skb)
+ {
+diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
+index 76d1e38aabe1..0c53fd51bf9b 100644
+--- a/include/linux/syscalls.h
++++ b/include/linux/syscalls.h
+@@ -524,7 +524,7 @@ asmlinkage long sys_chown(const char __user *filename,
+ asmlinkage long sys_lchown(const char __user *filename,
+ 				uid_t user, gid_t group);
+ asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
+-#ifdef CONFIG_UID16
++#ifdef CONFIG_HAVE_UID16
+ asmlinkage long sys_chown16(const char __user *filename,
+ 				old_uid_t user, old_gid_t group);
+ asmlinkage long sys_lchown16(const char __user *filename,
+diff --git a/include/linux/types.h b/include/linux/types.h
+index 8715287c3b1f..69c44d981da3 100644
+--- a/include/linux/types.h
++++ b/include/linux/types.h
+@@ -35,7 +35,7 @@ typedef __kernel_gid16_t        gid16_t;
+ 
+ typedef unsigned long		uintptr_t;
+ 
+-#ifdef CONFIG_UID16
++#ifdef CONFIG_HAVE_UID16
+ /* This is defined by include/asm-{arch}/posix_types.h */
+ typedef __kernel_old_uid_t	old_uid_t;
+ typedef __kernel_old_gid_t	old_gid_t;
+diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
+index 7c9b484735c5..e7827ae2462c 100644
+--- a/include/linux/usb/cdc_ncm.h
++++ b/include/linux/usb/cdc_ncm.h
+@@ -133,6 +133,7 @@ struct cdc_ncm_ctx {
+ };
+ 
+ u8 cdc_ncm_select_altsetting(struct usb_interface *intf);
++int cdc_ncm_change_mtu(struct net_device *net, int new_mtu);
+ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting);
+ void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf);
+ struct sk_buff *cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign);
+diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
+index 84b20835b736..0dc0a51da38f 100644
+--- a/include/net/inet_ecn.h
++++ b/include/net/inet_ecn.h
+@@ -111,11 +111,24 @@ static inline void ipv4_copy_dscp(unsigned int dscp, struct iphdr *inner)
+ 
+ struct ipv6hdr;
+ 
+-static inline int IP6_ECN_set_ce(struct ipv6hdr *iph)
++/* Note:
++ * IP_ECN_set_ce() has to tweak IPV4 checksum when setting CE,
++ * meaning both changes have no effect on skb->csum if/when CHECKSUM_COMPLETE
++ * In IPv6 case, no checksum compensates the change in IPv6 header,
++ * so we have to update skb->csum.
++ */
++static inline int IP6_ECN_set_ce(struct sk_buff *skb, struct ipv6hdr *iph)
+ {
++	__be32 from, to;
++
+ 	if (INET_ECN_is_not_ect(ipv6_get_dsfield(iph)))
+ 		return 0;
+-	*(__be32*)iph |= htonl(INET_ECN_CE << 20);
++
++	from = *(__be32 *)iph;
++	to = from | htonl(INET_ECN_CE << 20);
++	*(__be32 *)iph = to;
++	if (skb->ip_summed == CHECKSUM_COMPLETE)
++		skb->csum = csum_add(csum_sub(skb->csum, from), to);
+ 	return 1;
+ }
+ 
+@@ -142,7 +155,7 @@ static inline int INET_ECN_set_ce(struct sk_buff *skb)
+ 	case cpu_to_be16(ETH_P_IPV6):
+ 		if (skb_network_header(skb) + sizeof(struct ipv6hdr) <=
+ 		    skb_tail_pointer(skb))
+-			return IP6_ECN_set_ce(ipv6_hdr(skb));
++			return IP6_ECN_set_ce(skb, ipv6_hdr(skb));
+ 		break;
+ 	}
+ 
+diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
+index 360c4802288d..7682cb2ae237 100644
+--- a/include/net/inet_timewait_sock.h
++++ b/include/net/inet_timewait_sock.h
+@@ -112,7 +112,19 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
+ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
+ 			   struct inet_hashinfo *hashinfo);
+ 
+-void inet_twsk_schedule(struct inet_timewait_sock *tw, const int timeo);
++void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo,
++			  bool rearm);
++
++static inline void inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo)
++{
++	__inet_twsk_schedule(tw, timeo, false);
++}
++
++static inline void inet_twsk_reschedule(struct inet_timewait_sock *tw, int timeo)
++{
++	__inet_twsk_schedule(tw, timeo, true);
++}
++
+ void inet_twsk_deschedule(struct inet_timewait_sock *tw);
+ 
+ void inet_twsk_purge(struct inet_hashinfo *hashinfo,
+diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
+index 47dcd3aa6e23..141d562064a7 100644
+--- a/kernel/bpf/verifier.c
++++ b/kernel/bpf/verifier.c
+@@ -1019,6 +1019,16 @@ static int check_alu_op(struct reg_state *regs, struct bpf_insn *insn)
+ 			return -EINVAL;
+ 		}
+ 
++		if ((opcode == BPF_LSH || opcode == BPF_RSH ||
++		     opcode == BPF_ARSH) && BPF_SRC(insn->code) == BPF_K) {
++			int size = BPF_CLASS(insn->code) == BPF_ALU64 ? 64 : 32;
++
++			if (insn->imm < 0 || insn->imm >= size) {
++				verbose("invalid shift %d\n", insn->imm);
++				return -EINVAL;
++			}
++		}
++
+ 		/* pattern match 'bpf_add Rx, imm' instruction */
+ 		if (opcode == BPF_ADD && BPF_CLASS(insn->code) == BPF_ALU64 &&
+ 		    regs[insn->dst_reg].type == FRAME_PTR &&
+diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
+index ac4b96eccade..bd3357e69c5c 100644
+--- a/net/batman-adv/bridge_loop_avoidance.c
++++ b/net/batman-adv/bridge_loop_avoidance.c
+@@ -112,21 +112,17 @@ batadv_backbone_gw_free_ref(struct batadv_bla_backbone_gw *backbone_gw)
+ }
+ 
+ /* finally deinitialize the claim */
+-static void batadv_claim_free_rcu(struct rcu_head *rcu)
++static void batadv_claim_release(struct batadv_bla_claim *claim)
+ {
+-	struct batadv_bla_claim *claim;
+-
+-	claim = container_of(rcu, struct batadv_bla_claim, rcu);
+-
+ 	batadv_backbone_gw_free_ref(claim->backbone_gw);
+-	kfree(claim);
++	kfree_rcu(claim, rcu);
+ }
+ 
+ /* free a claim, call claim_free_rcu if its the last reference */
+ static void batadv_claim_free_ref(struct batadv_bla_claim *claim)
+ {
+ 	if (atomic_dec_and_test(&claim->refcount))
+-		call_rcu(&claim->rcu, batadv_claim_free_rcu);
++		batadv_claim_release(claim);
+ }
+ 
+ /**
+diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
+index 1918cd50b62e..b6bff9c1877a 100644
+--- a/net/batman-adv/hard-interface.h
++++ b/net/batman-adv/hard-interface.h
+@@ -64,18 +64,6 @@ batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface)
+ 		call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu);
+ }
+ 
+-/**
+- * batadv_hardif_free_ref_now - decrement the hard interface refcounter and
+- *  possibly free it (without rcu callback)
+- * @hard_iface: the hard interface to free
+- */
+-static inline void
+-batadv_hardif_free_ref_now(struct batadv_hard_iface *hard_iface)
+-{
+-	if (atomic_dec_and_test(&hard_iface->refcount))
+-		batadv_hardif_free_rcu(&hard_iface->rcu);
+-}
+-
+ static inline struct batadv_hard_iface *
+ batadv_primary_if_get_selected(struct batadv_priv *bat_priv)
+ {
+diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
+index a449195c5b2b..2fbd3a6bde9a 100644
+--- a/net/batman-adv/network-coding.c
++++ b/net/batman-adv/network-coding.c
+@@ -175,28 +175,25 @@ void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
+ }
+ 
+ /**
+- * batadv_nc_node_free_rcu - rcu callback to free an nc node and remove
+- *  its refcount on the orig_node
+- * @rcu: rcu pointer of the nc node
++ * batadv_nc_node_release - release nc_node from lists and queue for free after
++ *  rcu grace period
++ * @nc_node: the nc node to free
+  */
+-static void batadv_nc_node_free_rcu(struct rcu_head *rcu)
++static void batadv_nc_node_release(struct batadv_nc_node *nc_node)
+ {
+-	struct batadv_nc_node *nc_node;
+-
+-	nc_node = container_of(rcu, struct batadv_nc_node, rcu);
+ 	batadv_orig_node_free_ref(nc_node->orig_node);
+-	kfree(nc_node);
++	kfree_rcu(nc_node, rcu);
+ }
+ 
+ /**
+- * batadv_nc_node_free_ref - decrements the nc node refcounter and possibly
+- * frees it
++ * batadv_nc_node_free_ref - decrement the nc node refcounter and possibly
++ *  release it
+  * @nc_node: the nc node to free
+  */
+ static void batadv_nc_node_free_ref(struct batadv_nc_node *nc_node)
+ {
+ 	if (atomic_dec_and_test(&nc_node->refcount))
+-		call_rcu(&nc_node->rcu, batadv_nc_node_free_rcu);
++		batadv_nc_node_release(nc_node);
+ }
+ 
+ /**
+diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
+index dfae97408628..77ea1d4de2ba 100644
+--- a/net/batman-adv/originator.c
++++ b/net/batman-adv/originator.c
+@@ -150,86 +150,58 @@ err:
+ }
+ 
+ /**
+- * batadv_neigh_ifinfo_free_rcu - free the neigh_ifinfo object
+- * @rcu: rcu pointer of the neigh_ifinfo object
+- */
+-static void batadv_neigh_ifinfo_free_rcu(struct rcu_head *rcu)
+-{
+-	struct batadv_neigh_ifinfo *neigh_ifinfo;
+-
+-	neigh_ifinfo = container_of(rcu, struct batadv_neigh_ifinfo, rcu);
+-
+-	if (neigh_ifinfo->if_outgoing != BATADV_IF_DEFAULT)
+-		batadv_hardif_free_ref_now(neigh_ifinfo->if_outgoing);
+-
+-	kfree(neigh_ifinfo);
+-}
+-
+-/**
+- * batadv_neigh_ifinfo_free_now - decrement the refcounter and possibly free
+- *  the neigh_ifinfo (without rcu callback)
++ * batadv_neigh_ifinfo_release - release neigh_ifinfo from lists and queue for
++ *  free after rcu grace period
+  * @neigh_ifinfo: the neigh_ifinfo object to release
+  */
+ static void
+-batadv_neigh_ifinfo_free_ref_now(struct batadv_neigh_ifinfo *neigh_ifinfo)
++batadv_neigh_ifinfo_release(struct batadv_neigh_ifinfo *neigh_ifinfo)
+ {
+-	if (atomic_dec_and_test(&neigh_ifinfo->refcount))
+-		batadv_neigh_ifinfo_free_rcu(&neigh_ifinfo->rcu);
++	if (neigh_ifinfo->if_outgoing != BATADV_IF_DEFAULT)
++		batadv_hardif_free_ref(neigh_ifinfo->if_outgoing);
++
++	kfree_rcu(neigh_ifinfo, rcu);
+ }
+ 
+ /**
+- * batadv_neigh_ifinfo_free_ref - decrement the refcounter and possibly free
++ * batadv_neigh_ifinfo_free_ref - decrement the refcounter and possibly release
+  *  the neigh_ifinfo
+  * @neigh_ifinfo: the neigh_ifinfo object to release
+  */
+ void batadv_neigh_ifinfo_free_ref(struct batadv_neigh_ifinfo *neigh_ifinfo)
+ {
+ 	if (atomic_dec_and_test(&neigh_ifinfo->refcount))
+-		call_rcu(&neigh_ifinfo->rcu, batadv_neigh_ifinfo_free_rcu);
++		batadv_neigh_ifinfo_release(neigh_ifinfo);
+ }
+ 
+ /**
+- * batadv_neigh_node_free_rcu - free the neigh_node
+- * @rcu: rcu pointer of the neigh_node
++ * batadv_neigh_node_release - release neigh_node from lists and queue for
++ *  free after rcu grace period
++ * @neigh_node: neigh neighbor to free
+  */
+-static void batadv_neigh_node_free_rcu(struct rcu_head *rcu)
++static void batadv_neigh_node_release(struct batadv_neigh_node *neigh_node)
+ {
+ 	struct hlist_node *node_tmp;
+-	struct batadv_neigh_node *neigh_node;
+ 	struct batadv_neigh_ifinfo *neigh_ifinfo;
+ 
+-	neigh_node = container_of(rcu, struct batadv_neigh_node, rcu);
+-
+ 	hlist_for_each_entry_safe(neigh_ifinfo, node_tmp,
+ 				  &neigh_node->ifinfo_list, list) {
+-		batadv_neigh_ifinfo_free_ref_now(neigh_ifinfo);
++		batadv_neigh_ifinfo_free_ref(neigh_ifinfo);
+ 	}
+-	batadv_hardif_free_ref_now(neigh_node->if_incoming);
++	batadv_hardif_free_ref(neigh_node->if_incoming);
+ 
+-	kfree(neigh_node);
+-}
+-
+-/**
+- * batadv_neigh_node_free_ref_now - decrement the neighbors refcounter
+- *  and possibly free it (without rcu callback)
+- * @neigh_node: neigh neighbor to free
+- */
+-static void
+-batadv_neigh_node_free_ref_now(struct batadv_neigh_node *neigh_node)
+-{
+-	if (atomic_dec_and_test(&neigh_node->refcount))
+-		batadv_neigh_node_free_rcu(&neigh_node->rcu);
++	kfree_rcu(neigh_node, rcu);
+ }
+ 
+ /**
+  * batadv_neigh_node_free_ref - decrement the neighbors refcounter
+- *  and possibly free it
++ *  and possibly release it
+  * @neigh_node: neigh neighbor to free
+  */
+ void batadv_neigh_node_free_ref(struct batadv_neigh_node *neigh_node)
+ {
+ 	if (atomic_dec_and_test(&neigh_node->refcount))
+-		call_rcu(&neigh_node->rcu, batadv_neigh_node_free_rcu);
++		batadv_neigh_node_release(neigh_node);
+ }
+ 
+ /**
+@@ -495,108 +467,99 @@ batadv_neigh_node_get(const struct batadv_orig_node *orig_node,
+ }
+ 
+ /**
+- * batadv_orig_ifinfo_free_rcu - free the orig_ifinfo object
+- * @rcu: rcu pointer of the orig_ifinfo object
++ * batadv_orig_ifinfo_release - release orig_ifinfo from lists and queue for
++ *  free after rcu grace period
++ * @orig_ifinfo: the orig_ifinfo object to release
+  */
+-static void batadv_orig_ifinfo_free_rcu(struct rcu_head *rcu)
++static void batadv_orig_ifinfo_release(struct batadv_orig_ifinfo *orig_ifinfo)
+ {
+-	struct batadv_orig_ifinfo *orig_ifinfo;
+ 	struct batadv_neigh_node *router;
+ 
+-	orig_ifinfo = container_of(rcu, struct batadv_orig_ifinfo, rcu);
+-
+ 	if (orig_ifinfo->if_outgoing != BATADV_IF_DEFAULT)
+-		batadv_hardif_free_ref_now(orig_ifinfo->if_outgoing);
++		batadv_hardif_free_ref(orig_ifinfo->if_outgoing);
+ 
+ 	/* this is the last reference to this object */
+ 	router = rcu_dereference_protected(orig_ifinfo->router, true);
+ 	if (router)
+-		batadv_neigh_node_free_ref_now(router);
+-	kfree(orig_ifinfo);
++		batadv_neigh_node_free_ref(router);
++
++	kfree_rcu(orig_ifinfo, rcu);
+ }
+ 
+ /**
+- * batadv_orig_ifinfo_free_ref - decrement the refcounter and possibly free
+- *  the orig_ifinfo (without rcu callback)
++ * batadv_orig_ifinfo_free_ref - decrement the refcounter and possibly release
++ *  the orig_ifinfo
+  * @orig_ifinfo: the orig_ifinfo object to release
+  */
+-static void
+-batadv_orig_ifinfo_free_ref_now(struct batadv_orig_ifinfo *orig_ifinfo)
++void batadv_orig_ifinfo_free_ref(struct batadv_orig_ifinfo *orig_ifinfo)
+ {
+ 	if (atomic_dec_and_test(&orig_ifinfo->refcount))
+-		batadv_orig_ifinfo_free_rcu(&orig_ifinfo->rcu);
++		batadv_orig_ifinfo_release(orig_ifinfo);
+ }
+ 
+ /**
+- * batadv_orig_ifinfo_free_ref - decrement the refcounter and possibly free
+- *  the orig_ifinfo
+- * @orig_ifinfo: the orig_ifinfo object to release
++ * batadv_orig_node_free_rcu - free the orig_node
++ * @rcu: rcu pointer of the orig_node
+  */
+-void batadv_orig_ifinfo_free_ref(struct batadv_orig_ifinfo *orig_ifinfo)
++static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
+ {
+-	if (atomic_dec_and_test(&orig_ifinfo->refcount))
+-		call_rcu(&orig_ifinfo->rcu, batadv_orig_ifinfo_free_rcu);
++	struct batadv_orig_node *orig_node;
++
++	orig_node = container_of(rcu, struct batadv_orig_node, rcu);
++
++	batadv_mcast_purge_orig(orig_node);
++
++	batadv_frag_purge_orig(orig_node, NULL);
++
++	if (orig_node->bat_priv->bat_algo_ops->bat_orig_free)
++		orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node);
++
++	kfree(orig_node->tt_buff);
++	kfree(orig_node);
+ }
+ 
+-static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
++/**
++ * batadv_orig_node_release - release orig_node from lists and queue for
++ *  free after rcu grace period
++ * @orig_node: the orig node to free
++ */
++static void batadv_orig_node_release(struct batadv_orig_node *orig_node)
+ {
+ 	struct hlist_node *node_tmp;
+ 	struct batadv_neigh_node *neigh_node;
+-	struct batadv_orig_node *orig_node;
+ 	struct batadv_orig_ifinfo *orig_ifinfo;
+ 
+-	orig_node = container_of(rcu, struct batadv_orig_node, rcu);
+-
+ 	spin_lock_bh(&orig_node->neigh_list_lock);
+ 
+ 	/* for all neighbors towards this originator ... */
+ 	hlist_for_each_entry_safe(neigh_node, node_tmp,
+ 				  &orig_node->neigh_list, list) {
+ 		hlist_del_rcu(&neigh_node->list);
+-		batadv_neigh_node_free_ref_now(neigh_node);
++		batadv_neigh_node_free_ref(neigh_node);
+ 	}
+ 
+ 	hlist_for_each_entry_safe(orig_ifinfo, node_tmp,
+ 				  &orig_node->ifinfo_list, list) {
+ 		hlist_del_rcu(&orig_ifinfo->list);
+-		batadv_orig_ifinfo_free_ref_now(orig_ifinfo);
++		batadv_orig_ifinfo_free_ref(orig_ifinfo);
+ 	}
+ 	spin_unlock_bh(&orig_node->neigh_list_lock);
+ 
+-	batadv_mcast_purge_orig(orig_node);
+-
+ 	/* Free nc_nodes */
+ 	batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL);
+ 
+-	batadv_frag_purge_orig(orig_node, NULL);
+-
+-	if (orig_node->bat_priv->bat_algo_ops->bat_orig_free)
+-		orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node);
+-
+-	kfree(orig_node->tt_buff);
+-	kfree(orig_node);
++	call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu);
+ }
+ 
+ /**
+  * batadv_orig_node_free_ref - decrement the orig node refcounter and possibly
+- * schedule an rcu callback for freeing it
++ *  release it
+  * @orig_node: the orig node to free
+  */
+ void batadv_orig_node_free_ref(struct batadv_orig_node *orig_node)
+ {
+ 	if (atomic_dec_and_test(&orig_node->refcount))
+-		call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu);
+-}
+-
+-/**
+- * batadv_orig_node_free_ref_now - decrement the orig node refcounter and
+- * possibly free it (without rcu callback)
+- * @orig_node: the orig node to free
+- */
+-void batadv_orig_node_free_ref_now(struct batadv_orig_node *orig_node)
+-{
+-	if (atomic_dec_and_test(&orig_node->refcount))
+-		batadv_orig_node_free_rcu(&orig_node->rcu);
++		batadv_orig_node_release(orig_node);
+ }
+ 
+ void batadv_originator_free(struct batadv_priv *bat_priv)
+diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
+index aa4a43696295..28b751ad549c 100644
+--- a/net/batman-adv/originator.h
++++ b/net/batman-adv/originator.h
+@@ -25,7 +25,6 @@ int batadv_originator_init(struct batadv_priv *bat_priv);
+ void batadv_originator_free(struct batadv_priv *bat_priv);
+ void batadv_purge_orig_ref(struct batadv_priv *bat_priv);
+ void batadv_orig_node_free_ref(struct batadv_orig_node *orig_node);
+-void batadv_orig_node_free_ref_now(struct batadv_orig_node *orig_node);
+ struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv,
+ 					      const uint8_t *addr);
+ struct batadv_neigh_node *
+diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
+index 4f2a9d2c56db..ddd62c9af5b4 100644
+--- a/net/batman-adv/translation-table.c
++++ b/net/batman-adv/translation-table.c
+@@ -219,20 +219,6 @@ int batadv_tt_global_hash_count(struct batadv_priv *bat_priv,
+ 	return count;
+ }
+ 
+-static void batadv_tt_orig_list_entry_free_rcu(struct rcu_head *rcu)
+-{
+-	struct batadv_tt_orig_list_entry *orig_entry;
+-
+-	orig_entry = container_of(rcu, struct batadv_tt_orig_list_entry, rcu);
+-
+-	/* We are in an rcu callback here, therefore we cannot use
+-	 * batadv_orig_node_free_ref() and its call_rcu():
+-	 * An rcu_barrier() wouldn't wait for that to finish
+-	 */
+-	batadv_orig_node_free_ref_now(orig_entry->orig_node);
+-	kfree(orig_entry);
+-}
+-
+ /**
+  * batadv_tt_local_size_mod - change the size by v of the local table identified
+  *  by vid
+@@ -328,13 +314,25 @@ static void batadv_tt_global_size_dec(struct batadv_orig_node *orig_node,
+ 	batadv_tt_global_size_mod(orig_node, vid, -1);
+ }
+ 
++/**
++ * batadv_tt_orig_list_entry_release - release tt orig entry from lists and
++ *  queue for free after rcu grace period
++ * @orig_entry: tt orig entry to be free'd
++ */
++static void
++batadv_tt_orig_list_entry_release(struct batadv_tt_orig_list_entry *orig_entry)
++{
++	batadv_orig_node_free_ref(orig_entry->orig_node);
++	kfree_rcu(orig_entry, rcu);
++}
++
+ static void
+ batadv_tt_orig_list_entry_free_ref(struct batadv_tt_orig_list_entry *orig_entry)
+ {
+ 	if (!atomic_dec_and_test(&orig_entry->refcount))
+ 		return;
+ 
+-	call_rcu(&orig_entry->rcu, batadv_tt_orig_list_entry_free_rcu);
++	batadv_tt_orig_list_entry_release(orig_entry);
+ }
+ 
+ /**
+diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
+index 4ff77a16956c..3d6c8e222391 100644
+--- a/net/bridge/br_device.c
++++ b/net/bridge/br_device.c
+@@ -28,6 +28,8 @@
+ const struct nf_br_ops __rcu *nf_br_ops __read_mostly;
+ EXPORT_SYMBOL_GPL(nf_br_ops);
+ 
++static struct lock_class_key bridge_netdev_addr_lock_key;
++
+ /* net device transmit always called with BH disabled */
+ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
+ {
+@@ -87,6 +89,11 @@ out:
+ 	return NETDEV_TX_OK;
+ }
+ 
++static void br_set_lockdep_class(struct net_device *dev)
++{
++	lockdep_set_class(&dev->addr_list_lock, &bridge_netdev_addr_lock_key);
++}
++
+ static int br_dev_init(struct net_device *dev)
+ {
+ 	struct net_bridge *br = netdev_priv(dev);
+@@ -99,6 +106,7 @@ static int br_dev_init(struct net_device *dev)
+ 	err = br_vlan_init(br);
+ 	if (err)
+ 		free_percpu(br->stats);
++	br_set_lockdep_class(dev);
+ 
+ 	return err;
+ }
+diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
+index 7832d07f48f6..ce658abdc2c8 100644
+--- a/net/bridge/br_stp_if.c
++++ b/net/bridge/br_stp_if.c
+@@ -128,7 +128,10 @@ static void br_stp_start(struct net_bridge *br)
+ 	char *argv[] = { BR_STP_PROG, br->dev->name, "start", NULL };
+ 	char *envp[] = { NULL };
+ 
+-	r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC);
++	if (net_eq(dev_net(br->dev), &init_net))
++		r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC);
++	else
++		r = -ENOENT;
+ 
+ 	spin_lock_bh(&br->lock);
+ 
+diff --git a/net/core/dev.c b/net/core/dev.c
+index a42b232805a5..185a3398c651 100644
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -2479,6 +2479,8 @@ static inline bool skb_needs_check(struct sk_buff *skb, bool tx_path)
+  *
+  *	It may return NULL if the skb requires no segmentation.  This is
+  *	only possible when GSO is used for verifying header integrity.
++ *
++ *	Segmentation preserves SKB_SGO_CB_OFFSET bytes of previous skb cb.
+  */
+ struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
+ 				  netdev_features_t features, bool tx_path)
+@@ -2493,6 +2495,9 @@ struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
+ 			return ERR_PTR(err);
+ 	}
+ 
++	BUILD_BUG_ON(SKB_SGO_CB_OFFSET +
++		     sizeof(*SKB_GSO_CB(skb)) > sizeof(skb->cb));
++
+ 	SKB_GSO_CB(skb)->mac_offset = skb_headroom(skb);
+ 	SKB_GSO_CB(skb)->encap_level = 0;
+ 
+diff --git a/net/core/dst.c b/net/core/dst.c
+index f8db4032d45a..540066cb33ef 100644
+--- a/net/core/dst.c
++++ b/net/core/dst.c
+@@ -282,10 +282,11 @@ void dst_release(struct dst_entry *dst)
+ {
+ 	if (dst) {
+ 		int newrefcnt;
++		unsigned short nocache = dst->flags & DST_NOCACHE;
+ 
+ 		newrefcnt = atomic_dec_return(&dst->__refcnt);
+ 		WARN_ON(newrefcnt < 0);
+-		if (!newrefcnt && unlikely(dst->flags & DST_NOCACHE))
++		if (!newrefcnt && unlikely(nocache))
+ 			call_rcu(&dst->rcu_head, dst_destroy_rcu);
+ 	}
+ }
+diff --git a/net/core/filter.c b/net/core/filter.c
+index 0fa2613b5e35..238bb3f9c51d 100644
+--- a/net/core/filter.c
++++ b/net/core/filter.c
+@@ -775,6 +775,11 @@ int bpf_check_classic(const struct sock_filter *filter, unsigned int flen)
+ 			if (ftest->k == 0)
+ 				return -EINVAL;
+ 			break;
++		case BPF_ALU | BPF_LSH | BPF_K:
++		case BPF_ALU | BPF_RSH | BPF_K:
++			if (ftest->k >= 32)
++				return -EINVAL;
++			break;
+ 		case BPF_LD | BPF_MEM:
+ 		case BPF_LDX | BPF_MEM:
+ 		case BPF_ST:
+diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
+index 30addee2dd03..838f524cf11a 100644
+--- a/net/dccp/minisocks.c
++++ b/net/dccp/minisocks.c
+@@ -48,8 +48,6 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
+ 			tw->tw_ipv6only = sk->sk_ipv6only;
+ 		}
+ #endif
+-		/* Linkage updates. */
+-		__inet_twsk_hashdance(tw, sk, &dccp_hashinfo);
+ 
+ 		/* Get the TIME_WAIT timeout firing. */
+ 		if (timeo < rto)
+@@ -60,6 +58,8 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
+ 			timeo = DCCP_TIMEWAIT_LEN;
+ 
+ 		inet_twsk_schedule(tw, timeo);
++		/* Linkage updates. */
++		__inet_twsk_hashdance(tw, sk, &dccp_hashinfo);
+ 		inet_twsk_put(tw);
+ 	} else {
+ 		/* Sorry, if we're out of memory, just CLOSE this
+diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
+index 00ec8d5d7e7e..bb96c1c4edd6 100644
+--- a/net/ipv4/inet_timewait_sock.c
++++ b/net/ipv4/inet_timewait_sock.c
+@@ -153,13 +153,15 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
+ 	/*
+ 	 * Step 2: Hash TW into tcp ehash chain.
+ 	 * Notes :
+-	 * - tw_refcnt is set to 3 because :
++	 * - tw_refcnt is set to 4 because :
+ 	 * - We have one reference from bhash chain.
+ 	 * - We have one reference from ehash chain.
++	 * - We have one reference from timer.
++	 * - One reference for ourself (our caller will release it).
+ 	 * We can use atomic_set() because prior spin_lock()/spin_unlock()
+ 	 * committed into memory all tw fields.
+ 	 */
+-	atomic_set(&tw->tw_refcnt, 1 + 1 + 1);
++	atomic_set(&tw->tw_refcnt, 4);
+ 	inet_twsk_add_node_rcu(tw, &ehead->chain);
+ 
+ 	/* Step 3: Remove SK from hash chain */
+@@ -243,7 +245,7 @@ void inet_twsk_deschedule(struct inet_timewait_sock *tw)
+ }
+ EXPORT_SYMBOL(inet_twsk_deschedule);
+ 
+-void inet_twsk_schedule(struct inet_timewait_sock *tw, const int timeo)
++void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo, bool rearm)
+ {
+ 	/* timeout := RTO * 3.5
+ 	 *
+@@ -271,12 +273,14 @@ void inet_twsk_schedule(struct inet_timewait_sock *tw, const int timeo)
+ 	 */
+ 
+ 	tw->tw_kill = timeo <= 4*HZ;
+-	if (!mod_timer_pinned(&tw->tw_timer, jiffies + timeo)) {
+-		atomic_inc(&tw->tw_refcnt);
++	if (!rearm) {
++		BUG_ON(mod_timer_pinned(&tw->tw_timer, jiffies + timeo));
+ 		atomic_inc(&tw->tw_dr->tw_count);
++	} else {
++		mod_timer_pending(&tw->tw_timer, jiffies + timeo);
+ 	}
+ }
+-EXPORT_SYMBOL_GPL(inet_twsk_schedule);
++EXPORT_SYMBOL_GPL(__inet_twsk_schedule);
+ 
+ void inet_twsk_purge(struct inet_hashinfo *hashinfo,
+ 		     struct inet_timewait_death_row *twdr, int family)
+diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
+index c65b93a7b711..51573f8a39bc 100644
+--- a/net/ipv4/ip_output.c
++++ b/net/ipv4/ip_output.c
+@@ -235,6 +235,7 @@ static int ip_finish_output_gso(struct sock *sk, struct sk_buff *skb)
+ 	 * from host network stack.
+ 	 */
+ 	features = netif_skb_features(skb);
++	BUILD_BUG_ON(sizeof(*IPCB(skb)) > SKB_SGO_CB_OFFSET);
+ 	segs = skb_gso_segment(skb, features & ~NETIF_F_GSO_MASK);
+ 	if (IS_ERR_OR_NULL(segs)) {
+ 		kfree_skb(skb);
+@@ -893,7 +894,7 @@ static int __ip_append_data(struct sock *sk,
+ 	if (((length > mtu) || (skb && skb_is_gso(skb))) &&
+ 	    (sk->sk_protocol == IPPROTO_UDP) &&
+ 	    (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len &&
+-	    (sk->sk_type == SOCK_DGRAM)) {
++	    (sk->sk_type == SOCK_DGRAM) && !sk->sk_no_check_tx) {
+ 		err = ip_ufo_append_data(sk, queue, getfrag, from, length,
+ 					 hh_len, fragheaderlen, transhdrlen,
+ 					 maxfraglen, flags);
+diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
+index 17e7339ee5ca..fec2907b85e8 100644
+--- a/net/ipv4/tcp_minisocks.c
++++ b/net/ipv4/tcp_minisocks.c
+@@ -163,9 +163,9 @@ kill_with_rst:
+ 		if (tcp_death_row.sysctl_tw_recycle &&
+ 		    tcptw->tw_ts_recent_stamp &&
+ 		    tcp_tw_remember_stamp(tw))
+-			inet_twsk_schedule(tw, tw->tw_timeout);
++			inet_twsk_reschedule(tw, tw->tw_timeout);
+ 		else
+-			inet_twsk_schedule(tw, TCP_TIMEWAIT_LEN);
++			inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN);
+ 		return TCP_TW_ACK;
+ 	}
+ 
+@@ -203,7 +203,7 @@ kill:
+ 				return TCP_TW_SUCCESS;
+ 			}
+ 		}
+-		inet_twsk_schedule(tw, TCP_TIMEWAIT_LEN);
++		inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN);
+ 
+ 		if (tmp_opt.saw_tstamp) {
+ 			tcptw->tw_ts_recent	  = tmp_opt.rcv_tsval;
+@@ -253,7 +253,7 @@ kill:
+ 		 * Do not reschedule in the last case.
+ 		 */
+ 		if (paws_reject || th->ack)
+-			inet_twsk_schedule(tw, TCP_TIMEWAIT_LEN);
++			inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN);
+ 
+ 		return tcp_timewait_check_oow_rate_limit(
+ 			tw, skb, LINUX_MIB_TCPACKSKIPPEDTIMEWAIT);
+@@ -324,9 +324,6 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
+ 		} while (0);
+ #endif
+ 
+-		/* Linkage updates. */
+-		__inet_twsk_hashdance(tw, sk, &tcp_hashinfo);
+-
+ 		/* Get the TIME_WAIT timeout firing. */
+ 		if (timeo < rto)
+ 			timeo = rto;
+@@ -340,6 +337,8 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
+ 		}
+ 
+ 		inet_twsk_schedule(tw, timeo);
++		/* Linkage updates. */
++		__inet_twsk_hashdance(tw, sk, &tcp_hashinfo);
+ 		inet_twsk_put(tw);
+ 	} else {
+ 		/* Sorry, if we're out of memory, just CLOSE this
+diff --git a/net/ipv4/tcp_yeah.c b/net/ipv4/tcp_yeah.c
+index 17d35662930d..3e6a472e6b88 100644
+--- a/net/ipv4/tcp_yeah.c
++++ b/net/ipv4/tcp_yeah.c
+@@ -219,7 +219,7 @@ static u32 tcp_yeah_ssthresh(struct sock *sk)
+ 	yeah->fast_count = 0;
+ 	yeah->reno_count = max(yeah->reno_count>>1, 2U);
+ 
+-	return tp->snd_cwnd - reduction;
++	return max_t(int, tp->snd_cwnd - reduction, 2);
+ }
+ 
+ static struct tcp_congestion_ops tcp_yeah __read_mostly = {
+diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
+index bff69746e05f..78526087126d 100644
+--- a/net/ipv4/xfrm4_policy.c
++++ b/net/ipv4/xfrm4_policy.c
+@@ -230,7 +230,7 @@ static void xfrm4_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
+ 	xfrm_dst_ifdown(dst, dev);
+ }
+ 
+-static struct dst_ops xfrm4_dst_ops = {
++static struct dst_ops xfrm4_dst_ops_template = {
+ 	.family =		AF_INET,
+ 	.gc =			xfrm4_garbage_collect,
+ 	.update_pmtu =		xfrm4_update_pmtu,
+@@ -244,7 +244,7 @@ static struct dst_ops xfrm4_dst_ops = {
+ 
+ static struct xfrm_policy_afinfo xfrm4_policy_afinfo = {
+ 	.family = 		AF_INET,
+-	.dst_ops =		&xfrm4_dst_ops,
++	.dst_ops =		&xfrm4_dst_ops_template,
+ 	.dst_lookup =		xfrm4_dst_lookup,
+ 	.get_saddr =		xfrm4_get_saddr,
+ 	.decode_session =	_decode_session4,
+@@ -266,7 +266,7 @@ static struct ctl_table xfrm4_policy_table[] = {
+ 	{ }
+ };
+ 
+-static int __net_init xfrm4_net_init(struct net *net)
++static int __net_init xfrm4_net_sysctl_init(struct net *net)
+ {
+ 	struct ctl_table *table;
+ 	struct ctl_table_header *hdr;
+@@ -294,7 +294,7 @@ err_alloc:
+ 	return -ENOMEM;
+ }
+ 
+-static void __net_exit xfrm4_net_exit(struct net *net)
++static void __net_exit xfrm4_net_sysctl_exit(struct net *net)
+ {
+ 	struct ctl_table *table;
+ 
+@@ -306,12 +306,44 @@ static void __net_exit xfrm4_net_exit(struct net *net)
+ 	if (!net_eq(net, &init_net))
+ 		kfree(table);
+ }
++#else /* CONFIG_SYSCTL */
++static int inline xfrm4_net_sysctl_init(struct net *net)
++{
++	return 0;
++}
++
++static void inline xfrm4_net_sysctl_exit(struct net *net)
++{
++}
++#endif
++
++static int __net_init xfrm4_net_init(struct net *net)
++{
++	int ret;
++
++	memcpy(&net->xfrm.xfrm4_dst_ops, &xfrm4_dst_ops_template,
++	       sizeof(xfrm4_dst_ops_template));
++	ret = dst_entries_init(&net->xfrm.xfrm4_dst_ops);
++	if (ret)
++		return ret;
++
++	ret = xfrm4_net_sysctl_init(net);
++	if (ret)
++		dst_entries_destroy(&net->xfrm.xfrm4_dst_ops);
++
++	return ret;
++}
++
++static void __net_exit xfrm4_net_exit(struct net *net)
++{
++	xfrm4_net_sysctl_exit(net);
++	dst_entries_destroy(&net->xfrm.xfrm4_dst_ops);
++}
+ 
+ static struct pernet_operations __net_initdata xfrm4_net_ops = {
+ 	.init	= xfrm4_net_init,
+ 	.exit	= xfrm4_net_exit,
+ };
+-#endif
+ 
+ static void __init xfrm4_policy_init(void)
+ {
+@@ -320,13 +352,9 @@ static void __init xfrm4_policy_init(void)
+ 
+ void __init xfrm4_init(void)
+ {
+-	dst_entries_init(&xfrm4_dst_ops);
+-
+ 	xfrm4_state_init();
+ 	xfrm4_policy_init();
+ 	xfrm4_protocol_init();
+-#ifdef CONFIG_SYSCTL
+ 	register_pernet_subsys(&xfrm4_net_ops);
+-#endif
+ }
+ 
+diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
+index a2d685030a34..f4795b0d6e6e 100644
+--- a/net/ipv6/addrconf.c
++++ b/net/ipv6/addrconf.c
+@@ -5267,13 +5267,10 @@ static int addrconf_sysctl_stable_secret(struct ctl_table *ctl, int write,
+ 		goto out;
+ 	}
+ 
+-	if (!write) {
+-		err = snprintf(str, sizeof(str), "%pI6",
+-			       &secret->secret);
+-		if (err >= sizeof(str)) {
+-			err = -EIO;
+-			goto out;
+-		}
++	err = snprintf(str, sizeof(str), "%pI6", &secret->secret);
++	if (err >= sizeof(str)) {
++		err = -EIO;
++		goto out;
+ 	}
+ 
+ 	err = proc_dostring(&lctl, write, buffer, lenp, ppos);
+diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
+index 882124ebb438..a8f6986dcbe5 100644
+--- a/net/ipv6/addrlabel.c
++++ b/net/ipv6/addrlabel.c
+@@ -552,7 +552,7 @@ static int ip6addrlbl_get(struct sk_buff *in_skb, struct nlmsghdr *nlh)
+ 
+ 	rcu_read_lock();
+ 	p = __ipv6_addr_label(net, addr, ipv6_addr_type(addr), ifal->ifal_index);
+-	if (p && ip6addrlbl_hold(p))
++	if (p && !ip6addrlbl_hold(p))
+ 		p = NULL;
+ 	lseq = ip6addrlbl_table.seq;
+ 	rcu_read_unlock();
+diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
+index bc09cb97b840..f50228b0abe5 100644
+--- a/net/ipv6/ip6_output.c
++++ b/net/ipv6/ip6_output.c
+@@ -1329,7 +1329,7 @@ emsgsize:
+ 	     (skb && skb_is_gso(skb))) &&
+ 	    (sk->sk_protocol == IPPROTO_UDP) &&
+ 	    (rt->dst.dev->features & NETIF_F_UFO) &&
+-	    (sk->sk_type == SOCK_DGRAM)) {
++	    (sk->sk_type == SOCK_DGRAM) && !udp_get_no_check6_tx(sk)) {
+ 		err = ip6_ufo_append_data(sk, queue, getfrag, from, length,
+ 					  hh_len, fragheaderlen,
+ 					  transhdrlen, mtu, flags, rt);
+diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
+index c1938ad39f8c..c1147acbc8c4 100644
+--- a/net/ipv6/tcp_ipv6.c
++++ b/net/ipv6/tcp_ipv6.c
+@@ -465,8 +465,10 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst,
+ 			fl6->flowlabel = ip6_flowlabel(ipv6_hdr(ireq->pktopts));
+ 
+ 		skb_set_queue_mapping(skb, queue_mapping);
++		rcu_read_lock();
+ 		err = ip6_xmit(sk, skb, fl6, rcu_dereference(np->opt),
+ 			       np->tclass);
++		rcu_read_unlock();
+ 		err = net_xmit_eval(err);
+ 	}
+ 
+diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
+index 901ef6f8addc..5266ad2d6419 100644
+--- a/net/ipv6/xfrm6_mode_tunnel.c
++++ b/net/ipv6/xfrm6_mode_tunnel.c
+@@ -24,7 +24,7 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
+ 	struct ipv6hdr *inner_iph = ipipv6_hdr(skb);
+ 
+ 	if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
+-		IP6_ECN_set_ce(inner_iph);
++		IP6_ECN_set_ce(skb, inner_iph);
+ }
+ 
+ /* Add encapsulation header.
+diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
+index f337a908a76a..4fb94f6ee15b 100644
+--- a/net/ipv6/xfrm6_policy.c
++++ b/net/ipv6/xfrm6_policy.c
+@@ -289,7 +289,7 @@ static void xfrm6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
+ 	xfrm_dst_ifdown(dst, dev);
+ }
+ 
+-static struct dst_ops xfrm6_dst_ops = {
++static struct dst_ops xfrm6_dst_ops_template = {
+ 	.family =		AF_INET6,
+ 	.gc =			xfrm6_garbage_collect,
+ 	.update_pmtu =		xfrm6_update_pmtu,
+@@ -303,7 +303,7 @@ static struct dst_ops xfrm6_dst_ops = {
+ 
+ static struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
+ 	.family =		AF_INET6,
+-	.dst_ops =		&xfrm6_dst_ops,
++	.dst_ops =		&xfrm6_dst_ops_template,
+ 	.dst_lookup =		xfrm6_dst_lookup,
+ 	.get_saddr =		xfrm6_get_saddr,
+ 	.decode_session =	_decode_session6,
+@@ -336,7 +336,7 @@ static struct ctl_table xfrm6_policy_table[] = {
+ 	{ }
+ };
+ 
+-static int __net_init xfrm6_net_init(struct net *net)
++static int __net_init xfrm6_net_sysctl_init(struct net *net)
+ {
+ 	struct ctl_table *table;
+ 	struct ctl_table_header *hdr;
+@@ -364,7 +364,7 @@ err_alloc:
+ 	return -ENOMEM;
+ }
+ 
+-static void __net_exit xfrm6_net_exit(struct net *net)
++static void __net_exit xfrm6_net_sysctl_exit(struct net *net)
+ {
+ 	struct ctl_table *table;
+ 
+@@ -376,24 +376,52 @@ static void __net_exit xfrm6_net_exit(struct net *net)
+ 	if (!net_eq(net, &init_net))
+ 		kfree(table);
+ }
++#else /* CONFIG_SYSCTL */
++static int inline xfrm6_net_sysctl_init(struct net *net)
++{
++	return 0;
++}
++
++static void inline xfrm6_net_sysctl_exit(struct net *net)
++{
++}
++#endif
++
++static int __net_init xfrm6_net_init(struct net *net)
++{
++	int ret;
++
++	memcpy(&net->xfrm.xfrm6_dst_ops, &xfrm6_dst_ops_template,
++	       sizeof(xfrm6_dst_ops_template));
++	ret = dst_entries_init(&net->xfrm.xfrm6_dst_ops);
++	if (ret)
++		return ret;
++
++	ret = xfrm6_net_sysctl_init(net);
++	if (ret)
++		dst_entries_destroy(&net->xfrm.xfrm6_dst_ops);
++
++	return ret;
++}
++
++static void __net_exit xfrm6_net_exit(struct net *net)
++{
++	xfrm6_net_sysctl_exit(net);
++	dst_entries_destroy(&net->xfrm.xfrm6_dst_ops);
++}
+ 
+ static struct pernet_operations xfrm6_net_ops = {
+ 	.init	= xfrm6_net_init,
+ 	.exit	= xfrm6_net_exit,
+ };
+-#endif
+ 
+ int __init xfrm6_init(void)
+ {
+ 	int ret;
+ 
+-	dst_entries_init(&xfrm6_dst_ops);
+-
+ 	ret = xfrm6_policy_init();
+-	if (ret) {
+-		dst_entries_destroy(&xfrm6_dst_ops);
++	if (ret)
+ 		goto out;
+-	}
+ 	ret = xfrm6_state_init();
+ 	if (ret)
+ 		goto out_policy;
+@@ -402,9 +430,7 @@ int __init xfrm6_init(void)
+ 	if (ret)
+ 		goto out_state;
+ 
+-#ifdef CONFIG_SYSCTL
+ 	register_pernet_subsys(&xfrm6_net_ops);
+-#endif
+ out:
+ 	return ret;
+ out_state:
+@@ -416,11 +442,8 @@ out_policy:
+ 
+ void xfrm6_fini(void)
+ {
+-#ifdef CONFIG_SYSCTL
+ 	unregister_pernet_subsys(&xfrm6_net_ops);
+-#endif
+ 	xfrm6_protocol_fini();
+ 	xfrm6_policy_fini();
+ 	xfrm6_state_fini();
+-	dst_entries_destroy(&xfrm6_dst_ops);
+ }
+diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
+index 27e14962b504..b3fe02a2339e 100644
+--- a/net/openvswitch/datapath.c
++++ b/net/openvswitch/datapath.c
+@@ -337,12 +337,10 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
+ 	unsigned short gso_type = skb_shinfo(skb)->gso_type;
+ 	struct sw_flow_key later_key;
+ 	struct sk_buff *segs, *nskb;
+-	struct ovs_skb_cb ovs_cb;
+ 	int err;
+ 
+-	ovs_cb = *OVS_CB(skb);
++	BUILD_BUG_ON(sizeof(*OVS_CB(skb)) > SKB_SGO_CB_OFFSET);
+ 	segs = __skb_gso_segment(skb, NETIF_F_SG, false);
+-	*OVS_CB(skb) = ovs_cb;
+ 	if (IS_ERR(segs))
+ 		return PTR_ERR(segs);
+ 	if (segs == NULL)
+@@ -360,7 +358,6 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
+ 	/* Queue all of the segments. */
+ 	skb = segs;
+ 	do {
+-		*OVS_CB(skb) = ovs_cb;
+ 		if (gso_type & SKB_GSO_UDP && skb != segs)
+ 			key = &later_key;
+ 
+diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
+index 32ab87d34828..11d0b29ce4b8 100644
+--- a/net/phonet/af_phonet.c
++++ b/net/phonet/af_phonet.c
+@@ -377,6 +377,10 @@ static int phonet_rcv(struct sk_buff *skb, struct net_device *dev,
+ 	struct sockaddr_pn sa;
+ 	u16 len;
+ 
++	skb = skb_share_check(skb, GFP_ATOMIC);
++	if (!skb)
++		return NET_RX_DROP;
++
+ 	/* check we have at least a full Phonet header */
+ 	if (!pskb_pull(skb, sizeof(struct phonethdr)))
+ 		goto out;
+diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
+index b453270be3fd..3c6f6b774ba6 100644
+--- a/net/sched/sch_generic.c
++++ b/net/sched/sch_generic.c
+@@ -666,8 +666,10 @@ static void qdisc_rcu_free(struct rcu_head *head)
+ {
+ 	struct Qdisc *qdisc = container_of(head, struct Qdisc, rcu_head);
+ 
+-	if (qdisc_is_percpu_stats(qdisc))
++	if (qdisc_is_percpu_stats(qdisc)) {
+ 		free_percpu(qdisc->cpu_bstats);
++		free_percpu(qdisc->cpu_qstats);
++	}
+ 
+ 	kfree((char *) qdisc - qdisc->padded);
+ }
+diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
+index fef2acdf4a2e..ecae5561b912 100644
+--- a/net/sctp/sm_sideeffect.c
++++ b/net/sctp/sm_sideeffect.c
+@@ -244,12 +244,13 @@ void sctp_generate_t3_rtx_event(unsigned long peer)
+ 	int error;
+ 	struct sctp_transport *transport = (struct sctp_transport *) peer;
+ 	struct sctp_association *asoc = transport->asoc;
+-	struct net *net = sock_net(asoc->base.sk);
++	struct sock *sk = asoc->base.sk;
++	struct net *net = sock_net(sk);
+ 
+ 	/* Check whether a task is in the sock.  */
+ 
+-	bh_lock_sock(asoc->base.sk);
+-	if (sock_owned_by_user(asoc->base.sk)) {
++	bh_lock_sock(sk);
++	if (sock_owned_by_user(sk)) {
+ 		pr_debug("%s: sock is busy\n", __func__);
+ 
+ 		/* Try again later.  */
+@@ -272,10 +273,10 @@ void sctp_generate_t3_rtx_event(unsigned long peer)
+ 			   transport, GFP_ATOMIC);
+ 
+ 	if (error)
+-		asoc->base.sk->sk_err = -error;
++		sk->sk_err = -error;
+ 
+ out_unlock:
+-	bh_unlock_sock(asoc->base.sk);
++	bh_unlock_sock(sk);
+ 	sctp_transport_put(transport);
+ }
+ 
+@@ -285,11 +286,12 @@ out_unlock:
+ static void sctp_generate_timeout_event(struct sctp_association *asoc,
+ 					sctp_event_timeout_t timeout_type)
+ {
+-	struct net *net = sock_net(asoc->base.sk);
++	struct sock *sk = asoc->base.sk;
++	struct net *net = sock_net(sk);
+ 	int error = 0;
+ 
+-	bh_lock_sock(asoc->base.sk);
+-	if (sock_owned_by_user(asoc->base.sk)) {
++	bh_lock_sock(sk);
++	if (sock_owned_by_user(sk)) {
+ 		pr_debug("%s: sock is busy: timer %d\n", __func__,
+ 			 timeout_type);
+ 
+@@ -312,10 +314,10 @@ static void sctp_generate_timeout_event(struct sctp_association *asoc,
+ 			   (void *)timeout_type, GFP_ATOMIC);
+ 
+ 	if (error)
+-		asoc->base.sk->sk_err = -error;
++		sk->sk_err = -error;
+ 
+ out_unlock:
+-	bh_unlock_sock(asoc->base.sk);
++	bh_unlock_sock(sk);
+ 	sctp_association_put(asoc);
+ }
+ 
+@@ -365,10 +367,11 @@ void sctp_generate_heartbeat_event(unsigned long data)
+ 	int error = 0;
+ 	struct sctp_transport *transport = (struct sctp_transport *) data;
+ 	struct sctp_association *asoc = transport->asoc;
+-	struct net *net = sock_net(asoc->base.sk);
++	struct sock *sk = asoc->base.sk;
++	struct net *net = sock_net(sk);
+ 
+-	bh_lock_sock(asoc->base.sk);
+-	if (sock_owned_by_user(asoc->base.sk)) {
++	bh_lock_sock(sk);
++	if (sock_owned_by_user(sk)) {
+ 		pr_debug("%s: sock is busy\n", __func__);
+ 
+ 		/* Try again later.  */
+@@ -389,10 +392,10 @@ void sctp_generate_heartbeat_event(unsigned long data)
+ 			   transport, GFP_ATOMIC);
+ 
+ 	 if (error)
+-		 asoc->base.sk->sk_err = -error;
++		sk->sk_err = -error;
+ 
+ out_unlock:
+-	bh_unlock_sock(asoc->base.sk);
++	bh_unlock_sock(sk);
+ 	sctp_transport_put(transport);
+ }
+ 
+@@ -403,10 +406,11 @@ void sctp_generate_proto_unreach_event(unsigned long data)
+ {
+ 	struct sctp_transport *transport = (struct sctp_transport *) data;
+ 	struct sctp_association *asoc = transport->asoc;
+-	struct net *net = sock_net(asoc->base.sk);
++	struct sock *sk = asoc->base.sk;
++	struct net *net = sock_net(sk);
+ 
+-	bh_lock_sock(asoc->base.sk);
+-	if (sock_owned_by_user(asoc->base.sk)) {
++	bh_lock_sock(sk);
++	if (sock_owned_by_user(sk)) {
+ 		pr_debug("%s: sock is busy\n", __func__);
+ 
+ 		/* Try again later.  */
+@@ -427,7 +431,7 @@ void sctp_generate_proto_unreach_event(unsigned long data)
+ 		   asoc->state, asoc->ep, asoc, transport, GFP_ATOMIC);
+ 
+ out_unlock:
+-	bh_unlock_sock(asoc->base.sk);
++	bh_unlock_sock(sk);
+ 	sctp_association_put(asoc);
+ }
+ 
+diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
+index 3ee27b7704ff..e6bb98e583fb 100644
+--- a/net/sctp/sm_statefuns.c
++++ b/net/sctp/sm_statefuns.c
+@@ -4829,7 +4829,8 @@ sctp_disposition_t sctp_sf_do_9_1_prm_abort(
+ 
+ 	retval = SCTP_DISPOSITION_CONSUME;
+ 
+-	sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
++	if (abort)
++		sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
+ 
+ 	/* Even if we can't send the ABORT due to low memory delete the
+ 	 * TCB.  This is a departure from our typical NOMEM handling.
+@@ -4966,7 +4967,8 @@ sctp_disposition_t sctp_sf_cookie_wait_prm_abort(
+ 			SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT));
+ 	retval = SCTP_DISPOSITION_CONSUME;
+ 
+-	sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
++	if (abort)
++		sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
+ 
+ 	sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
+ 			SCTP_STATE(SCTP_STATE_CLOSED));
+diff --git a/net/sctp/socket.c b/net/sctp/socket.c
+index a63c2c87a0c6..76e6ec62cf92 100644
+--- a/net/sctp/socket.c
++++ b/net/sctp/socket.c
+@@ -1513,8 +1513,7 @@ static void sctp_close(struct sock *sk, long timeout)
+ 			struct sctp_chunk *chunk;
+ 
+ 			chunk = sctp_make_abort_user(asoc, NULL, 0);
+-			if (chunk)
+-				sctp_primitive_ABORT(net, asoc, chunk);
++			sctp_primitive_ABORT(net, asoc, chunk);
+ 		} else
+ 			sctp_primitive_SHUTDOWN(net, asoc, NULL);
+ 	}
+diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
+index 26d50c565f54..3e0fc5127225 100644
+--- a/net/sctp/sysctl.c
++++ b/net/sctp/sysctl.c
+@@ -320,7 +320,7 @@ static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write,
+ 	struct ctl_table tbl;
+ 	bool changed = false;
+ 	char *none = "none";
+-	char tmp[8];
++	char tmp[8] = {0};
+ 	int ret;
+ 
+ 	memset(&tbl, 0, sizeof(struct ctl_table));
+diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
+index a398f624c28d..cb3a01a9ed38 100644
+--- a/net/unix/af_unix.c
++++ b/net/unix/af_unix.c
+@@ -1481,6 +1481,21 @@ static void unix_destruct_scm(struct sk_buff *skb)
+ 	sock_wfree(skb);
+ }
+ 
++/*
++ * The "user->unix_inflight" variable is protected by the garbage
++ * collection lock, and we just read it locklessly here. If you go
++ * over the limit, there might be a tiny race in actually noticing
++ * it across threads. Tough.
++ */
++static inline bool too_many_unix_fds(struct task_struct *p)
++{
++	struct user_struct *user = current_user();
++
++	if (unlikely(user->unix_inflight > task_rlimit(p, RLIMIT_NOFILE)))
++		return !capable(CAP_SYS_RESOURCE) && !capable(CAP_SYS_ADMIN);
++	return false;
++}
++
+ #define MAX_RECURSION_LEVEL 4
+ 
+ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
+@@ -1489,6 +1504,9 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
+ 	unsigned char max_level = 0;
+ 	int unix_sock_count = 0;
+ 
++	if (too_many_unix_fds(current))
++		return -ETOOMANYREFS;
++
+ 	for (i = scm->fp->count - 1; i >= 0; i--) {
+ 		struct sock *sk = unix_get_socket(scm->fp->fp[i]);
+ 
+@@ -1510,10 +1528,8 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
+ 	if (!UNIXCB(skb).fp)
+ 		return -ENOMEM;
+ 
+-	if (unix_sock_count) {
+-		for (i = scm->fp->count - 1; i >= 0; i--)
+-			unix_inflight(scm->fp->fp[i]);
+-	}
++	for (i = scm->fp->count - 1; i >= 0; i--)
++		unix_inflight(scm->fp->fp[i]);
+ 	return max_level;
+ }
+ 
+diff --git a/net/unix/garbage.c b/net/unix/garbage.c
+index a73a226f2d33..8fcdc2283af5 100644
+--- a/net/unix/garbage.c
++++ b/net/unix/garbage.c
+@@ -120,11 +120,11 @@ void unix_inflight(struct file *fp)
+ {
+ 	struct sock *s = unix_get_socket(fp);
+ 
++	spin_lock(&unix_gc_lock);
++
+ 	if (s) {
+ 		struct unix_sock *u = unix_sk(s);
+ 
+-		spin_lock(&unix_gc_lock);
+-
+ 		if (atomic_long_inc_return(&u->inflight) == 1) {
+ 			BUG_ON(!list_empty(&u->link));
+ 			list_add_tail(&u->link, &gc_inflight_list);
+@@ -132,25 +132,28 @@ void unix_inflight(struct file *fp)
+ 			BUG_ON(list_empty(&u->link));
+ 		}
+ 		unix_tot_inflight++;
+-		spin_unlock(&unix_gc_lock);
+ 	}
++	fp->f_cred->user->unix_inflight++;
++	spin_unlock(&unix_gc_lock);
+ }
+ 
+ void unix_notinflight(struct file *fp)
+ {
+ 	struct sock *s = unix_get_socket(fp);
+ 
++	spin_lock(&unix_gc_lock);
++
+ 	if (s) {
+ 		struct unix_sock *u = unix_sk(s);
+ 
+-		spin_lock(&unix_gc_lock);
+ 		BUG_ON(list_empty(&u->link));
+ 
+ 		if (atomic_long_dec_and_test(&u->inflight))
+ 			list_del_init(&u->link);
+ 		unix_tot_inflight--;
+-		spin_unlock(&unix_gc_lock);
+ 	}
++	fp->f_cred->user->unix_inflight--;
++	spin_unlock(&unix_gc_lock);
+ }
+ 
+ static void scan_inflight(struct sock *x, void (*func)(struct unix_sock *),
+diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
+index fbcedbe33190..5097dce5b916 100644
+--- a/net/xfrm/xfrm_output.c
++++ b/net/xfrm/xfrm_output.c
+@@ -153,6 +153,8 @@ static int xfrm_output_gso(struct sock *sk, struct sk_buff *skb)
+ {
+ 	struct sk_buff *segs;
+ 
++	BUILD_BUG_ON(sizeof(*IPCB(skb)) > SKB_SGO_CB_OFFSET);
++	BUILD_BUG_ON(sizeof(*IP6CB(skb)) > SKB_SGO_CB_OFFSET);
+ 	segs = skb_gso_segment(skb, 0);
+ 	kfree_skb(skb);
+ 	if (IS_ERR(segs))
+diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
+index 638af0655aaf..4cd2076ff84b 100644
+--- a/net/xfrm/xfrm_policy.c
++++ b/net/xfrm/xfrm_policy.c
+@@ -2806,7 +2806,6 @@ static struct neighbour *xfrm_neigh_lookup(const struct dst_entry *dst,
+ 
+ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
+ {
+-	struct net *net;
+ 	int err = 0;
+ 	if (unlikely(afinfo == NULL))
+ 		return -EINVAL;
+@@ -2837,26 +2836,6 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
+ 	}
+ 	spin_unlock(&xfrm_policy_afinfo_lock);
+ 
+-	rtnl_lock();
+-	for_each_net(net) {
+-		struct dst_ops *xfrm_dst_ops;
+-
+-		switch (afinfo->family) {
+-		case AF_INET:
+-			xfrm_dst_ops = &net->xfrm.xfrm4_dst_ops;
+-			break;
+-#if IS_ENABLED(CONFIG_IPV6)
+-		case AF_INET6:
+-			xfrm_dst_ops = &net->xfrm.xfrm6_dst_ops;
+-			break;
+-#endif
+-		default:
+-			BUG();
+-		}
+-		*xfrm_dst_ops = *afinfo->dst_ops;
+-	}
+-	rtnl_unlock();
+-
+ 	return err;
+ }
+ EXPORT_SYMBOL(xfrm_policy_register_afinfo);
+@@ -2892,22 +2871,6 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
+ }
+ EXPORT_SYMBOL(xfrm_policy_unregister_afinfo);
+ 
+-static void __net_init xfrm_dst_ops_init(struct net *net)
+-{
+-	struct xfrm_policy_afinfo *afinfo;
+-
+-	rcu_read_lock();
+-	afinfo = rcu_dereference(xfrm_policy_afinfo[AF_INET]);
+-	if (afinfo)
+-		net->xfrm.xfrm4_dst_ops = *afinfo->dst_ops;
+-#if IS_ENABLED(CONFIG_IPV6)
+-	afinfo = rcu_dereference(xfrm_policy_afinfo[AF_INET6]);
+-	if (afinfo)
+-		net->xfrm.xfrm6_dst_ops = *afinfo->dst_ops;
+-#endif
+-	rcu_read_unlock();
+-}
+-
+ static int xfrm_dev_event(struct notifier_block *this, unsigned long event, void *ptr)
+ {
+ 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+@@ -3056,7 +3019,6 @@ static int __net_init xfrm_net_init(struct net *net)
+ 	rv = xfrm_policy_init(net);
+ 	if (rv < 0)
+ 		goto out_policy;
+-	xfrm_dst_ops_init(net);
+ 	rv = xfrm_sysctl_init(net);
+ 	if (rv < 0)
+ 		goto out_sysctl;
+diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
+index 3d1984e59a30..e00bcd129336 100644
+--- a/scripts/recordmcount.c
++++ b/scripts/recordmcount.c
+@@ -42,6 +42,7 @@
+ 
+ #ifndef EM_AARCH64
+ #define EM_AARCH64	183
++#define R_AARCH64_NONE		0
+ #define R_AARCH64_ABS64	257
+ #endif
+ 
+@@ -160,6 +161,22 @@ static int make_nop_x86(void *map, size_t const offset)
+ 	return 0;
+ }
+ 
++static unsigned char ideal_nop4_arm64[4] = {0x1f, 0x20, 0x03, 0xd5};
++static int make_nop_arm64(void *map, size_t const offset)
++{
++	uint32_t *ptr;
++
++	ptr = map + offset;
++	/* bl <_mcount> is 0x94000000 before relocation */
++	if (*ptr != 0x94000000)
++		return -1;
++
++	/* Convert to nop */
++	ulseek(fd_map, offset, SEEK_SET);
++	uwrite(fd_map, ideal_nop, 4);
++	return 0;
++}
++
+ /*
+  * Get the whole file as a programming convenience in order to avoid
+  * malloc+lseek+read+free of many pieces.  If successful, then mmap
+@@ -353,7 +370,12 @@ do_file(char const *const fname)
+ 			 altmcount = "__gnu_mcount_nc";
+ 			 break;
+ 	case EM_AARCH64:
+-			 reltype = R_AARCH64_ABS64; gpfx = '_'; break;
++			reltype = R_AARCH64_ABS64;
++			make_nop = make_nop_arm64;
++			rel_type_nop = R_AARCH64_NONE;
++			ideal_nop = ideal_nop4_arm64;
++			gpfx = '_';
++			break;
+ 	case EM_IA_64:	 reltype = R_IA64_IMM64;   gpfx = '_'; break;
+ 	case EM_METAG:	 reltype = R_METAG_ADDR32;
+ 			 altmcount = "_mcount_wrapper";
+diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h
+index 49b582a225b0..b9897e2be404 100644
+--- a/scripts/recordmcount.h
++++ b/scripts/recordmcount.h
+@@ -377,7 +377,7 @@ static void nop_mcount(Elf_Shdr const *const relhdr,
+ 
+ 		if (mcountsym == Elf_r_sym(relp) && !is_fake_mcount(relp)) {
+ 			if (make_nop)
+-				ret = make_nop((void *)ehdr, shdr->sh_offset + relp->r_offset);
++				ret = make_nop((void *)ehdr, _w(shdr->sh_offset) + _w(relp->r_offset));
+ 			if (warn_on_notrace_sect && !once) {
+ 				printf("Section %s has mcount callers being ignored\n",
+ 				       txtname);
+diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
+index 826470d7f000..96e2486a6fc4 100755
+--- a/scripts/recordmcount.pl
++++ b/scripts/recordmcount.pl
+@@ -263,7 +263,8 @@ if ($arch eq "x86_64") {
+ 
+ } elsif ($arch eq "powerpc") {
+     $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)";
+-    $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?.*?)>:";
++    # See comment in the sparc64 section for why we use '\w'.
++    $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?\\w*?)>:";
+     $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$";
+ 
+     if ($bits == 64) {
+diff --git a/sound/core/control.c b/sound/core/control.c
+index 196a6fe100ca..a85d45595d02 100644
+--- a/sound/core/control.c
++++ b/sound/core/control.c
+@@ -1405,6 +1405,8 @@ static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file,
+ 		return -EFAULT;
+ 	if (tlv.length < sizeof(unsigned int) * 2)
+ 		return -EINVAL;
++	if (!tlv.numid)
++		return -EINVAL;
+ 	down_read(&card->controls_rwsem);
+ 	kctl = snd_ctl_find_numid(card, tlv.numid);
+ 	if (kctl == NULL) {
+diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c
+index 886be7da989d..38514ed6e55c 100644
+--- a/sound/core/hrtimer.c
++++ b/sound/core/hrtimer.c
+@@ -90,7 +90,7 @@ static int snd_hrtimer_start(struct snd_timer *t)
+ 	struct snd_hrtimer *stime = t->private_data;
+ 
+ 	atomic_set(&stime->running, 0);
+-	hrtimer_cancel(&stime->hrt);
++	hrtimer_try_to_cancel(&stime->hrt);
+ 	hrtimer_start(&stime->hrt, ns_to_ktime(t->sticks * resolution),
+ 		      HRTIMER_MODE_REL);
+ 	atomic_set(&stime->running, 1);
+@@ -101,6 +101,7 @@ static int snd_hrtimer_stop(struct snd_timer *t)
+ {
+ 	struct snd_hrtimer *stime = t->private_data;
+ 	atomic_set(&stime->running, 0);
++	hrtimer_try_to_cancel(&stime->hrt);
+ 	return 0;
+ }
+ 
+diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
+index b48b434444ed..9630e9f72b7b 100644
+--- a/sound/core/pcm_compat.c
++++ b/sound/core/pcm_compat.c
+@@ -255,10 +255,15 @@ static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
+ 	if (! (runtime = substream->runtime))
+ 		return -ENOTTY;
+ 
+-	/* only fifo_size is different, so just copy all */
+-	data = memdup_user(data32, sizeof(*data32));
+-	if (IS_ERR(data))
+-		return PTR_ERR(data);
++	data = kmalloc(sizeof(*data), GFP_KERNEL);
++	if (!data)
++		return -ENOMEM;
++
++	/* only fifo_size (RO from userspace) is different, so just copy all */
++	if (copy_from_user(data, data32, sizeof(*data32))) {
++		err = -EFAULT;
++		goto error;
++	}
+ 
+ 	if (refine)
+ 		err = snd_pcm_hw_refine(substream, data);
+diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
+index edbdab85fc02..bd4741442909 100644
+--- a/sound/core/seq/seq_clientmgr.c
++++ b/sound/core/seq/seq_clientmgr.c
+@@ -1962,7 +1962,7 @@ static int snd_seq_ioctl_remove_events(struct snd_seq_client *client,
+ 		 * No restrictions so for a user client we can clear
+ 		 * the whole fifo
+ 		 */
+-		if (client->type == USER_CLIENT)
++		if (client->type == USER_CLIENT && client->data.user.fifo)
+ 			snd_seq_fifo_clear(client->data.user.fifo);
+ 	}
+ 
+diff --git a/sound/core/seq/seq_compat.c b/sound/core/seq/seq_compat.c
+index 81f7c109dc46..65175902a68a 100644
+--- a/sound/core/seq/seq_compat.c
++++ b/sound/core/seq/seq_compat.c
+@@ -49,11 +49,12 @@ static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned
+ 	struct snd_seq_port_info *data;
+ 	mm_segment_t fs;
+ 
+-	data = memdup_user(data32, sizeof(*data32));
+-	if (IS_ERR(data))
+-		return PTR_ERR(data);
++	data = kmalloc(sizeof(*data), GFP_KERNEL);
++	if (!data)
++		return -ENOMEM;
+ 
+-	if (get_user(data->flags, &data32->flags) ||
++	if (copy_from_user(data, data32, sizeof(*data32)) ||
++	    get_user(data->flags, &data32->flags) ||
+ 	    get_user(data->time_queue, &data32->time_queue))
+ 		goto error;
+ 	data->kernel = NULL;
+diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
+index a0cda38205b9..77ec21420355 100644
+--- a/sound/core/seq/seq_queue.c
++++ b/sound/core/seq/seq_queue.c
+@@ -142,8 +142,10 @@ static struct snd_seq_queue *queue_new(int owner, int locked)
+ static void queue_delete(struct snd_seq_queue *q)
+ {
+ 	/* stop and release the timer */
++	mutex_lock(&q->timer_mutex);
+ 	snd_seq_timer_stop(q->timer);
+ 	snd_seq_timer_close(q);
++	mutex_unlock(&q->timer_mutex);
+ 	/* wait until access free */
+ 	snd_use_lock_sync(&q->use_lock);
+ 	/* release resources... */
+diff --git a/sound/core/timer.c b/sound/core/timer.c
+index a9a1a047c521..a419878901c4 100644
+--- a/sound/core/timer.c
++++ b/sound/core/timer.c
+@@ -65,6 +65,7 @@ struct snd_timer_user {
+ 	int qtail;
+ 	int qused;
+ 	int queue_size;
++	bool disconnected;
+ 	struct snd_timer_read *queue;
+ 	struct snd_timer_tread *tqueue;
+ 	spinlock_t qlock;
+@@ -73,7 +74,7 @@ struct snd_timer_user {
+ 	struct timespec tstamp;		/* trigger tstamp */
+ 	wait_queue_head_t qchange_sleep;
+ 	struct fasync_struct *fasync;
+-	struct mutex tread_sem;
++	struct mutex ioctl_lock;
+ };
+ 
+ /* list of timers */
+@@ -215,11 +216,13 @@ static void snd_timer_check_master(struct snd_timer_instance *master)
+ 		    slave->slave_id == master->slave_id) {
+ 			list_move_tail(&slave->open_list, &master->slave_list_head);
+ 			spin_lock_irq(&slave_active_lock);
++			spin_lock(&master->timer->lock);
+ 			slave->master = master;
+ 			slave->timer = master->timer;
+ 			if (slave->flags & SNDRV_TIMER_IFLG_RUNNING)
+ 				list_add_tail(&slave->active_list,
+ 					      &master->slave_active_head);
++			spin_unlock(&master->timer->lock);
+ 			spin_unlock_irq(&slave_active_lock);
+ 		}
+ 	}
+@@ -288,6 +291,9 @@ int snd_timer_open(struct snd_timer_instance **ti,
+ 		mutex_unlock(&register_mutex);
+ 		return -ENOMEM;
+ 	}
++	/* take a card refcount for safe disconnection */
++	if (timer->card)
++		get_device(&timer->card->card_dev);
+ 	timeri->slave_class = tid->dev_sclass;
+ 	timeri->slave_id = slave_id;
+ 	if (list_empty(&timer->open_list_head) && timer->hw.open)
+@@ -346,15 +352,21 @@ int snd_timer_close(struct snd_timer_instance *timeri)
+ 		    timer->hw.close)
+ 			timer->hw.close(timer);
+ 		/* remove slave links */
++		spin_lock_irq(&slave_active_lock);
++		spin_lock(&timer->lock);
+ 		list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head,
+ 					 open_list) {
+-			spin_lock_irq(&slave_active_lock);
+-			_snd_timer_stop(slave, 1, SNDRV_TIMER_EVENT_RESOLUTION);
+ 			list_move_tail(&slave->open_list, &snd_timer_slave_list);
+ 			slave->master = NULL;
+ 			slave->timer = NULL;
+-			spin_unlock_irq(&slave_active_lock);
++			list_del_init(&slave->ack_list);
++			list_del_init(&slave->active_list);
+ 		}
++		spin_unlock(&timer->lock);
++		spin_unlock_irq(&slave_active_lock);
++		/* release a card refcount for safe disconnection */
++		if (timer->card)
++			put_device(&timer->card->card_dev);
+ 		mutex_unlock(&register_mutex);
+ 	}
+  out:
+@@ -441,9 +453,12 @@ static int snd_timer_start_slave(struct snd_timer_instance *timeri)
+ 
+ 	spin_lock_irqsave(&slave_active_lock, flags);
+ 	timeri->flags |= SNDRV_TIMER_IFLG_RUNNING;
+-	if (timeri->master)
++	if (timeri->master && timeri->timer) {
++		spin_lock(&timeri->timer->lock);
+ 		list_add_tail(&timeri->active_list,
+ 			      &timeri->master->slave_active_head);
++		spin_unlock(&timeri->timer->lock);
++	}
+ 	spin_unlock_irqrestore(&slave_active_lock, flags);
+ 	return 1; /* delayed start */
+ }
+@@ -467,6 +482,8 @@ int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)
+ 	timer = timeri->timer;
+ 	if (timer == NULL)
+ 		return -EINVAL;
++	if (timer->card && timer->card->shutdown)
++		return -ENODEV;
+ 	spin_lock_irqsave(&timer->lock, flags);
+ 	timeri->ticks = timeri->cticks = ticks;
+ 	timeri->pticks = 0;
+@@ -489,6 +506,8 @@ static int _snd_timer_stop(struct snd_timer_instance * timeri,
+ 		if (!keep_flag) {
+ 			spin_lock_irqsave(&slave_active_lock, flags);
+ 			timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
++			list_del_init(&timeri->ack_list);
++			list_del_init(&timeri->active_list);
+ 			spin_unlock_irqrestore(&slave_active_lock, flags);
+ 		}
+ 		goto __end;
+@@ -499,6 +518,10 @@ static int _snd_timer_stop(struct snd_timer_instance * timeri,
+ 	spin_lock_irqsave(&timer->lock, flags);
+ 	list_del_init(&timeri->ack_list);
+ 	list_del_init(&timeri->active_list);
++	if (timer->card && timer->card->shutdown) {
++		spin_unlock_irqrestore(&timer->lock, flags);
++		return 0;
++	}
+ 	if ((timeri->flags & SNDRV_TIMER_IFLG_RUNNING) &&
+ 	    !(--timer->running)) {
+ 		timer->hw.stop(timer);
+@@ -561,6 +584,8 @@ int snd_timer_continue(struct snd_timer_instance *timeri)
+ 	timer = timeri->timer;
+ 	if (! timer)
+ 		return -EINVAL;
++	if (timer->card && timer->card->shutdown)
++		return -ENODEV;
+ 	spin_lock_irqsave(&timer->lock, flags);
+ 	if (!timeri->cticks)
+ 		timeri->cticks = 1;
+@@ -624,6 +649,9 @@ static void snd_timer_tasklet(unsigned long arg)
+ 	unsigned long resolution, ticks;
+ 	unsigned long flags;
+ 
++	if (timer->card && timer->card->shutdown)
++		return;
++
+ 	spin_lock_irqsave(&timer->lock, flags);
+ 	/* now process all callbacks */
+ 	while (!list_empty(&timer->sack_list_head)) {
+@@ -664,6 +692,9 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
+ 	if (timer == NULL)
+ 		return;
+ 
++	if (timer->card && timer->card->shutdown)
++		return;
++
+ 	spin_lock_irqsave(&timer->lock, flags);
+ 
+ 	/* remember the current resolution */
+@@ -694,7 +725,7 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
+ 		} else {
+ 			ti->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
+ 			if (--timer->running)
+-				list_del(&ti->active_list);
++				list_del_init(&ti->active_list);
+ 		}
+ 		if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
+ 		    (ti->flags & SNDRV_TIMER_IFLG_FAST))
+@@ -874,11 +905,28 @@ static int snd_timer_dev_register(struct snd_device *dev)
+ 	return 0;
+ }
+ 
++/* just for reference in snd_timer_dev_disconnect() below */
++static void snd_timer_user_ccallback(struct snd_timer_instance *timeri,
++				     int event, struct timespec *tstamp,
++				     unsigned long resolution);
++
+ static int snd_timer_dev_disconnect(struct snd_device *device)
+ {
+ 	struct snd_timer *timer = device->device_data;
++	struct snd_timer_instance *ti;
++
+ 	mutex_lock(&register_mutex);
+ 	list_del_init(&timer->device_list);
++	/* wake up pending sleepers */
++	list_for_each_entry(ti, &timer->open_list_head, open_list) {
++		/* FIXME: better to have a ti.disconnect() op */
++		if (ti->ccallback == snd_timer_user_ccallback) {
++			struct snd_timer_user *tu = ti->callback_data;
++
++			tu->disconnected = true;
++			wake_up(&tu->qchange_sleep);
++		}
++	}
+ 	mutex_unlock(&register_mutex);
+ 	return 0;
+ }
+@@ -889,6 +937,8 @@ void snd_timer_notify(struct snd_timer *timer, int event, struct timespec *tstam
+ 	unsigned long resolution = 0;
+ 	struct snd_timer_instance *ti, *ts;
+ 
++	if (timer->card && timer->card->shutdown)
++		return;
+ 	if (! (timer->hw.flags & SNDRV_TIMER_HW_SLAVE))
+ 		return;
+ 	if (snd_BUG_ON(event < SNDRV_TIMER_EVENT_MSTART ||
+@@ -1047,6 +1097,8 @@ static void snd_timer_proc_read(struct snd_info_entry *entry,
+ 
+ 	mutex_lock(&register_mutex);
+ 	list_for_each_entry(timer, &snd_timer_list, device_list) {
++		if (timer->card && timer->card->shutdown)
++			continue;
+ 		switch (timer->tmr_class) {
+ 		case SNDRV_TIMER_CLASS_GLOBAL:
+ 			snd_iprintf(buffer, "G%i: ", timer->tmr_device);
+@@ -1253,7 +1305,7 @@ static int snd_timer_user_open(struct inode *inode, struct file *file)
+ 		return -ENOMEM;
+ 	spin_lock_init(&tu->qlock);
+ 	init_waitqueue_head(&tu->qchange_sleep);
+-	mutex_init(&tu->tread_sem);
++	mutex_init(&tu->ioctl_lock);
+ 	tu->ticks = 1;
+ 	tu->queue_size = 128;
+ 	tu->queue = kmalloc(tu->queue_size * sizeof(struct snd_timer_read),
+@@ -1273,8 +1325,10 @@ static int snd_timer_user_release(struct inode *inode, struct file *file)
+ 	if (file->private_data) {
+ 		tu = file->private_data;
+ 		file->private_data = NULL;
++		mutex_lock(&tu->ioctl_lock);
+ 		if (tu->timeri)
+ 			snd_timer_close(tu->timeri);
++		mutex_unlock(&tu->ioctl_lock);
+ 		kfree(tu->queue);
+ 		kfree(tu->tqueue);
+ 		kfree(tu);
+@@ -1512,7 +1566,6 @@ static int snd_timer_user_tselect(struct file *file,
+ 	int err = 0;
+ 
+ 	tu = file->private_data;
+-	mutex_lock(&tu->tread_sem);
+ 	if (tu->timeri) {
+ 		snd_timer_close(tu->timeri);
+ 		tu->timeri = NULL;
+@@ -1556,7 +1609,6 @@ static int snd_timer_user_tselect(struct file *file,
+ 	}
+ 
+       __err:
+-      	mutex_unlock(&tu->tread_sem);
+ 	return err;
+ }
+ 
+@@ -1769,7 +1821,7 @@ enum {
+ 	SNDRV_TIMER_IOCTL_PAUSE_OLD = _IO('T', 0x23),
+ };
+ 
+-static long snd_timer_user_ioctl(struct file *file, unsigned int cmd,
++static long __snd_timer_user_ioctl(struct file *file, unsigned int cmd,
+ 				 unsigned long arg)
+ {
+ 	struct snd_timer_user *tu;
+@@ -1786,17 +1838,11 @@ static long snd_timer_user_ioctl(struct file *file, unsigned int cmd,
+ 	{
+ 		int xarg;
+ 
+-		mutex_lock(&tu->tread_sem);
+-		if (tu->timeri)	{	/* too late */
+-			mutex_unlock(&tu->tread_sem);
++		if (tu->timeri)	/* too late */
+ 			return -EBUSY;
+-		}
+-		if (get_user(xarg, p)) {
+-			mutex_unlock(&tu->tread_sem);
++		if (get_user(xarg, p))
+ 			return -EFAULT;
+-		}
+ 		tu->tread = xarg ? 1 : 0;
+-		mutex_unlock(&tu->tread_sem);
+ 		return 0;
+ 	}
+ 	case SNDRV_TIMER_IOCTL_GINFO:
+@@ -1829,6 +1875,18 @@ static long snd_timer_user_ioctl(struct file *file, unsigned int cmd,
+ 	return -ENOTTY;
+ }
+ 
++static long snd_timer_user_ioctl(struct file *file, unsigned int cmd,
++				 unsigned long arg)
++{
++	struct snd_timer_user *tu = file->private_data;
++	long ret;
++
++	mutex_lock(&tu->ioctl_lock);
++	ret = __snd_timer_user_ioctl(file, cmd, arg);
++	mutex_unlock(&tu->ioctl_lock);
++	return ret;
++}
++
+ static int snd_timer_user_fasync(int fd, struct file * file, int on)
+ {
+ 	struct snd_timer_user *tu;
+@@ -1866,6 +1924,10 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
+ 
+ 			remove_wait_queue(&tu->qchange_sleep, &wait);
+ 
++			if (tu->disconnected) {
++				err = -ENODEV;
++				break;
++			}
+ 			if (signal_pending(current)) {
+ 				err = -ERESTARTSYS;
+ 				break;
+@@ -1915,6 +1977,8 @@ static unsigned int snd_timer_user_poll(struct file *file, poll_table * wait)
+ 	mask = 0;
+ 	if (tu->qused)
+ 		mask |= POLLIN | POLLRDNORM;
++	if (tu->disconnected)
++		mask |= POLLERR;
+ 
+ 	return mask;
+ }
+diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
+index 6cf470c80d1f..af7ed6643266 100644
+--- a/sound/firewire/bebob/Makefile
++++ b/sound/firewire/bebob/Makefile
+@@ -1,4 +1,4 @@
+ snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
+ 		  bebob_pcm.o bebob_hwdep.o bebob_terratec.o bebob_yamaha.o \
+ 		  bebob_focusrite.o bebob_maudio.o bebob.o
+-obj-m += snd-bebob.o
++obj-$(CONFIG_SND_BEBOB) += snd-bebob.o
+diff --git a/sound/firewire/dice/Makefile b/sound/firewire/dice/Makefile
+index 9ef228ef7baf..55b4be9b0034 100644
+--- a/sound/firewire/dice/Makefile
++++ b/sound/firewire/dice/Makefile
+@@ -1,3 +1,3 @@
+ snd-dice-objs := dice-transaction.o dice-stream.o dice-proc.o dice-midi.o \
+ 		 dice-pcm.o dice-hwdep.o dice.o
+-obj-m += snd-dice.o
++obj-$(CONFIG_SND_DICE) += snd-dice.o
+diff --git a/sound/firewire/fireworks/Makefile b/sound/firewire/fireworks/Makefile
+index 0c7440826db8..15ef7f75a8ef 100644
+--- a/sound/firewire/fireworks/Makefile
++++ b/sound/firewire/fireworks/Makefile
+@@ -1,4 +1,4 @@
+ snd-fireworks-objs := fireworks_transaction.o fireworks_command.o \
+ 		      fireworks_stream.o fireworks_proc.o fireworks_midi.o \
+ 		      fireworks_pcm.o fireworks_hwdep.o fireworks.o
+-obj-m += snd-fireworks.o
++obj-$(CONFIG_SND_FIREWORKS) += snd-fireworks.o
+diff --git a/sound/firewire/oxfw/Makefile b/sound/firewire/oxfw/Makefile
+index a926850864f6..06ff50f4e6c0 100644
+--- a/sound/firewire/oxfw/Makefile
++++ b/sound/firewire/oxfw/Makefile
+@@ -1,3 +1,3 @@
+ snd-oxfw-objs := oxfw-command.o oxfw-stream.o oxfw-control.o oxfw-pcm.o \
+ 		 oxfw-proc.o oxfw-midi.o oxfw-hwdep.o oxfw.o
+-obj-m += snd-oxfw.o
++obj-$(CONFIG_SND_OXFW) += snd-oxfw.o
+diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
+index 44dfc7b92bc3..09920ba55ba1 100644
+--- a/sound/pci/hda/hda_intel.c
++++ b/sound/pci/hda/hda_intel.c
+@@ -329,6 +329,7 @@ enum {
+ 
+ #define AZX_DCAPS_PRESET_CTHDA \
+ 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
++	 AZX_DCAPS_NO_64BIT |\
+ 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
+ 
+ /*
+@@ -839,6 +840,36 @@ static int azx_resume(struct device *dev)
+ }
+ #endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
+ 
++#ifdef CONFIG_PM_SLEEP
++/* put codec down to D3 at hibernation for Intel SKL+;
++ * otherwise BIOS may still access the codec and screw up the driver
++ */
++#define IS_SKL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa170)
++#define IS_SKL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d70)
++#define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
++#define IS_SKL_PLUS(pci) (IS_SKL(pci) || IS_SKL_LP(pci) || IS_BXT(pci))
++
++static int azx_freeze_noirq(struct device *dev)
++{
++	struct pci_dev *pci = to_pci_dev(dev);
++
++	if (IS_SKL_PLUS(pci))
++		pci_set_power_state(pci, PCI_D3hot);
++
++	return 0;
++}
++
++static int azx_thaw_noirq(struct device *dev)
++{
++	struct pci_dev *pci = to_pci_dev(dev);
++
++	if (IS_SKL_PLUS(pci))
++		pci_set_power_state(pci, PCI_D0);
++
++	return 0;
++}
++#endif /* CONFIG_PM_SLEEP */
++
+ #ifdef CONFIG_PM
+ static int azx_runtime_suspend(struct device *dev)
+ {
+@@ -939,6 +970,10 @@ static int azx_runtime_idle(struct device *dev)
+ 
+ static const struct dev_pm_ops azx_pm = {
+ 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
++#ifdef CONFIG_PM_SLEEP
++	.freeze_noirq = azx_freeze_noirq,
++	.thaw_noirq = azx_thaw_noirq,
++#endif
+ 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
+ };
+ 
+@@ -1937,9 +1972,17 @@ out_free:
+ static void azx_remove(struct pci_dev *pci)
+ {
+ 	struct snd_card *card = pci_get_drvdata(pci);
++	struct azx *chip;
++	struct hda_intel *hda;
++
++	if (card) {
++		/* flush the pending probing work */
++		chip = card->private_data;
++		hda = container_of(chip, struct hda_intel, chip);
++		flush_work(&hda->probe_work);
+ 
+-	if (card)
+ 		snd_card_free(card);
++	}
+ }
+ 
+ static void azx_shutdown(struct pci_dev *pci)
+@@ -1976,6 +2019,11 @@ static const struct pci_device_id azx_ids[] = {
+ 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+ 	{ PCI_DEVICE(0x8086, 0x8d21),
+ 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
++	/* Lewisburg */
++	{ PCI_DEVICE(0x8086, 0xa1f0),
++	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
++	{ PCI_DEVICE(0x8086, 0xa270),
++	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+ 	/* Lynx Point-LP */
+ 	{ PCI_DEVICE(0x8086, 0x9c20),
+ 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+@@ -2156,11 +2204,13 @@ static const struct pci_device_id azx_ids[] = {
+ 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
+ 	  .class_mask = 0xffffff,
+ 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
++	  AZX_DCAPS_NO_64BIT |
+ 	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
+ #else
+ 	/* this entry seems still valid -- i.e. without emu20kx chip */
+ 	{ PCI_DEVICE(0x1102, 0x0009),
+ 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
++	  AZX_DCAPS_NO_64BIT |
+ 	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
+ #endif
+ 	/* CM8888 */
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
+index 57bb5a559f8e..8189f02f8446 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -111,6 +111,7 @@ struct alc_spec {
+ 	void (*power_hook)(struct hda_codec *codec);
+ #endif
+ 	void (*shutup)(struct hda_codec *codec);
++	void (*reboot_notify)(struct hda_codec *codec);
+ 
+ 	int init_amp;
+ 	int codec_variant;	/* flag for other variants */
+@@ -773,6 +774,25 @@ static inline void alc_shutup(struct hda_codec *codec)
+ 		snd_hda_shutup_pins(codec);
+ }
+ 
++static void alc_reboot_notify(struct hda_codec *codec)
++{
++	struct alc_spec *spec = codec->spec;
++
++	if (spec && spec->reboot_notify)
++		spec->reboot_notify(codec);
++	else
++		alc_shutup(codec);
++}
++
++/* power down codec to D3 at reboot/shutdown; set as reboot_notify ops */
++static void alc_d3_at_reboot(struct hda_codec *codec)
++{
++	snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3);
++	snd_hda_codec_write(codec, codec->core.afg, 0,
++			    AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
++	msleep(10);
++}
++
+ #define alc_free	snd_hda_gen_free
+ 
+ #ifdef CONFIG_PM
+@@ -818,7 +838,7 @@ static const struct hda_codec_ops alc_patch_ops = {
+ 	.suspend = alc_suspend,
+ 	.check_power_status = snd_hda_gen_check_power_status,
+ #endif
+-	.reboot_notify = alc_shutup,
++	.reboot_notify = alc_reboot_notify,
+ };
+ 
+ 
+@@ -1767,10 +1787,12 @@ enum {
+ 	ALC889_FIXUP_MBA11_VREF,
+ 	ALC889_FIXUP_MBA21_VREF,
+ 	ALC889_FIXUP_MP11_VREF,
++	ALC889_FIXUP_MP41_VREF,
+ 	ALC882_FIXUP_INV_DMIC,
+ 	ALC882_FIXUP_NO_PRIMARY_HP,
+ 	ALC887_FIXUP_ASUS_BASS,
+ 	ALC887_FIXUP_BASS_CHMAP,
++	ALC882_FIXUP_DISABLE_AAMIX,
+ };
+ 
+ static void alc889_fixup_coef(struct hda_codec *codec,
+@@ -1854,7 +1876,7 @@ static void alc889_fixup_mbp_vref(struct hda_codec *codec,
+ 				  const struct hda_fixup *fix, int action)
+ {
+ 	struct alc_spec *spec = codec->spec;
+-	static hda_nid_t nids[2] = { 0x14, 0x15 };
++	static hda_nid_t nids[3] = { 0x14, 0x15, 0x19 };
+ 	int i;
+ 
+ 	if (action != HDA_FIXUP_ACT_INIT)
+@@ -1932,6 +1954,8 @@ static void alc882_fixup_no_primary_hp(struct hda_codec *codec,
+ 
+ static void alc_fixup_bass_chmap(struct hda_codec *codec,
+ 				 const struct hda_fixup *fix, int action);
++static void alc_fixup_disable_aamix(struct hda_codec *codec,
++				    const struct hda_fixup *fix, int action);
+ 
+ static const struct hda_fixup alc882_fixups[] = {
+ 	[ALC882_FIXUP_ABIT_AW9D_MAX] = {
+@@ -2142,6 +2166,12 @@ static const struct hda_fixup alc882_fixups[] = {
+ 		.chained = true,
+ 		.chain_id = ALC885_FIXUP_MACPRO_GPIO,
+ 	},
++	[ALC889_FIXUP_MP41_VREF] = {
++		.type = HDA_FIXUP_FUNC,
++		.v.func = alc889_fixup_mbp_vref,
++		.chained = true,
++		.chain_id = ALC885_FIXUP_MACPRO_GPIO,
++	},
+ 	[ALC882_FIXUP_INV_DMIC] = {
+ 		.type = HDA_FIXUP_FUNC,
+ 		.v.func = alc_fixup_inv_dmic,
+@@ -2163,6 +2193,10 @@ static const struct hda_fixup alc882_fixups[] = {
+ 		.type = HDA_FIXUP_FUNC,
+ 		.v.func = alc_fixup_bass_chmap,
+ 	},
++	[ALC882_FIXUP_DISABLE_AAMIX] = {
++		.type = HDA_FIXUP_FUNC,
++		.v.func = alc_fixup_disable_aamix,
++	},
+ };
+ 
+ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
+@@ -2220,7 +2254,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x106b, 0x3f00, "Macbook 5,1", ALC889_FIXUP_IMAC91_VREF),
+ 	SND_PCI_QUIRK(0x106b, 0x4000, "MacbookPro 5,1", ALC889_FIXUP_IMAC91_VREF),
+ 	SND_PCI_QUIRK(0x106b, 0x4100, "Macmini 3,1", ALC889_FIXUP_IMAC91_VREF),
+-	SND_PCI_QUIRK(0x106b, 0x4200, "Mac Pro 5,1", ALC885_FIXUP_MACPRO_GPIO),
++	SND_PCI_QUIRK(0x106b, 0x4200, "Mac Pro 4,1/5,1", ALC889_FIXUP_MP41_VREF),
+ 	SND_PCI_QUIRK(0x106b, 0x4300, "iMac 9,1", ALC889_FIXUP_IMAC91_VREF),
+ 	SND_PCI_QUIRK(0x106b, 0x4600, "MacbookPro 5,2", ALC889_FIXUP_IMAC91_VREF),
+ 	SND_PCI_QUIRK(0x106b, 0x4900, "iMac 9,1 Aluminum", ALC889_FIXUP_IMAC91_VREF),
+@@ -2230,6 +2264,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x1462, 0x7350, "MSI-7350", ALC889_FIXUP_CD),
+ 	SND_PCI_QUIRK_VENDOR(0x1462, "MSI", ALC882_FIXUP_GPIO3),
+ 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte EP45-DS3/Z87X-UD3H", ALC889_FIXUP_FRONT_HP_NO_PRESENCE),
++	SND_PCI_QUIRK(0x1458, 0xa182, "Gigabyte Z170X-UD3", ALC882_FIXUP_DISABLE_AAMIX),
+ 	SND_PCI_QUIRK(0x147b, 0x107a, "Abit AW9D-MAX", ALC882_FIXUP_ABIT_AW9D_MAX),
+ 	SND_PCI_QUIRK_VENDOR(0x1558, "Clevo laptop", ALC882_FIXUP_EAPD),
+ 	SND_PCI_QUIRK(0x161f, 0x2054, "Medion laptop", ALC883_FIXUP_EAPD),
+@@ -4194,6 +4229,8 @@ static void alc_fixup_tpt440_dock(struct hda_codec *codec,
+ 	struct alc_spec *spec = codec->spec;
+ 
+ 	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
++		spec->shutup = alc_no_shutup; /* reduce click noise */
++		spec->reboot_notify = alc_d3_at_reboot; /* reduce noise */
+ 		spec->parse_flags = HDA_PINCFG_NO_HP_FIXUP;
+ 		codec->power_save_node = 0; /* avoid click noises */
+ 		snd_hda_apply_pincfgs(codec, pincfgs);
+@@ -4525,6 +4562,7 @@ enum {
+ 	ALC255_FIXUP_HEADSET_MODE_NO_HP_MIC,
+ 	ALC293_FIXUP_DELL1_MIC_NO_PRESENCE,
+ 	ALC292_FIXUP_TPT440_DOCK,
++	ALC292_FIXUP_TPT440,
+ 	ALC283_FIXUP_BXBT2807_MIC,
+ 	ALC255_FIXUP_DELL_WMI_MIC_MUTE_LED,
+ 	ALC282_FIXUP_ASPIRE_V5_PINS,
+@@ -4993,6 +5031,12 @@ static const struct hda_fixup alc269_fixups[] = {
+ 		.chained = true,
+ 		.chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
+ 	},
++	[ALC292_FIXUP_TPT440] = {
++		.type = HDA_FIXUP_FUNC,
++		.v.func = alc_fixup_disable_aamix,
++		.chained = true,
++		.chain_id = ALC292_FIXUP_TPT440_DOCK,
++	},
+ 	[ALC283_FIXUP_BXBT2807_MIC] = {
+ 		.type = HDA_FIXUP_PINS,
+ 		.v.pins = (const struct hda_pintbl[]) {
+@@ -5107,6 +5151,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x1025, 0x0742, "Acer AO756", ALC271_FIXUP_HP_GATE_MIC_JACK),
+ 	SND_PCI_QUIRK(0x1025, 0x0775, "Acer Aspire E1-572", ALC271_FIXUP_HP_GATE_MIC_JACK_E1_572),
+ 	SND_PCI_QUIRK(0x1025, 0x079b, "Acer Aspire V5-573G", ALC282_FIXUP_ASPIRE_V5_PINS),
++	SND_PCI_QUIRK(0x1025, 0x106d, "Acer Cloudbook 14", ALC283_FIXUP_CHROME_BOOK),
+ 	SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
+ 	SND_PCI_QUIRK(0x1028, 0x05ca, "Dell Latitude E7240", ALC292_FIXUP_DELL_E7X),
+ 	SND_PCI_QUIRK(0x1028, 0x05cb, "Dell Latitude E7440", ALC292_FIXUP_DELL_E7X),
+@@ -5116,6 +5161,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x1028, 0x05f6, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
+ 	SND_PCI_QUIRK(0x1028, 0x0615, "Dell Vostro 5470", ALC290_FIXUP_SUBWOOFER_HSJACK),
+ 	SND_PCI_QUIRK(0x1028, 0x0616, "Dell Vostro 5470", ALC290_FIXUP_SUBWOOFER_HSJACK),
++	SND_PCI_QUIRK(0x1028, 0x062c, "Dell Latitude E5550", ALC292_FIXUP_DELL_E7X),
+ 	SND_PCI_QUIRK(0x1028, 0x062e, "Dell Latitude E7450", ALC292_FIXUP_DELL_E7X),
+ 	SND_PCI_QUIRK(0x1028, 0x0638, "Dell Inspiron 5439", ALC290_FIXUP_MONO_SPEAKERS_HSJACK),
+ 	SND_PCI_QUIRK(0x1028, 0x064a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
+@@ -5227,12 +5273,13 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x17aa, 0x21fb, "Thinkpad T430s", ALC269_FIXUP_LENOVO_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x2203, "Thinkpad X230 Tablet", ALC269_FIXUP_LENOVO_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x2208, "Thinkpad T431s", ALC269_FIXUP_LENOVO_DOCK),
+-	SND_PCI_QUIRK(0x17aa, 0x220c, "Thinkpad T440s", ALC292_FIXUP_TPT440_DOCK),
++	SND_PCI_QUIRK(0x17aa, 0x220c, "Thinkpad T440s", ALC292_FIXUP_TPT440),
+ 	SND_PCI_QUIRK(0x17aa, 0x220e, "Thinkpad T440p", ALC292_FIXUP_TPT440_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x2210, "Thinkpad T540p", ALC292_FIXUP_TPT440_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x2212, "Thinkpad T440", ALC292_FIXUP_TPT440_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad X240", ALC292_FIXUP_TPT440_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
++	SND_PCI_QUIRK(0x17aa, 0x2218, "Thinkpad X1 Carbon 2nd", ALC292_FIXUP_TPT440_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x2223, "ThinkPad T550", ALC292_FIXUP_TPT440_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x2226, "ThinkPad X250", ALC292_FIXUP_TPT440_DOCK),
+ 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
+@@ -5322,6 +5369,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = {
+ 	{.id = ALC283_FIXUP_CHROME_BOOK, .name = "alc283-dac-wcaps"},
+ 	{.id = ALC283_FIXUP_SENSE_COMBO_JACK, .name = "alc283-sense-combo"},
+ 	{.id = ALC292_FIXUP_TPT440_DOCK, .name = "tpt440-dock"},
++	{.id = ALC292_FIXUP_TPT440, .name = "tpt440"},
+ 	{}
+ };
+ 
+@@ -5448,6 +5496,10 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
+ 	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+ 		ALC255_STANDARD_PINS,
+ 		{0x12, 0x90a60170},
++		{0x14, 0x90171130},
++		{0x21, 0x02211040}),
++	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
++		{0x12, 0x90a60170},
+ 		{0x14, 0x90170140},
+ 		{0x17, 0x40000000},
+ 		{0x1d, 0x40700001},
+@@ -6456,6 +6508,7 @@ static const struct hda_fixup alc662_fixups[] = {
+ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x1019, 0x9087, "ECS", ALC662_FIXUP_ASUS_MODE2),
+ 	SND_PCI_QUIRK(0x1025, 0x022f, "Acer Aspire One", ALC662_FIXUP_INV_DMIC),
++	SND_PCI_QUIRK(0x1025, 0x0241, "Packard Bell DOTS", ALC662_FIXUP_INV_DMIC),
+ 	SND_PCI_QUIRK(0x1025, 0x0308, "Acer Aspire 8942G", ALC662_FIXUP_ASPIRE),
+ 	SND_PCI_QUIRK(0x1025, 0x031c, "Gateway NV79", ALC662_FIXUP_SKU_IGNORE),
+ 	SND_PCI_QUIRK(0x1025, 0x0349, "eMachines eM250", ALC662_FIXUP_INV_DMIC),
+@@ -6473,6 +6526,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x1028, 0x069f, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
+ 	SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
+ 	SND_PCI_QUIRK(0x1043, 0x11cd, "Asus N550", ALC662_FIXUP_BASS_1A),
++	SND_PCI_QUIRK(0x1043, 0x13df, "Asus N550JX", ALC662_FIXUP_BASS_1A),
+ 	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_MODE4_CHMAP),
+ 	SND_PCI_QUIRK(0x1043, 0x15a7, "ASUS UX51VZH", ALC662_FIXUP_BASS_16),
+ 	SND_PCI_QUIRK(0x1043, 0x1b73, "ASUS N55SF", ALC662_FIXUP_BASS_16),
+diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
+index b1bc66783974..8e7d4c087a7a 100644
+--- a/sound/pci/hda/patch_sigmatel.c
++++ b/sound/pci/hda/patch_sigmatel.c
+@@ -702,6 +702,7 @@ static bool hp_bnb2011_with_dock(struct hda_codec *codec)
+ static bool hp_blike_system(u32 subsystem_id)
+ {
+ 	switch (subsystem_id) {
++	case 0x103c1473: /* HP ProBook 6550b */
+ 	case 0x103c1520:
+ 	case 0x103c1521:
+ 	case 0x103c1523:
+@@ -3109,6 +3110,29 @@ static void stac92hd71bxx_fixup_hp_hdx(struct hda_codec *codec,
+ 	spec->gpio_led = 0x08;
+ }
+ 
++static bool is_hp_output(struct hda_codec *codec, hda_nid_t pin)
++{
++	unsigned int pin_cfg = snd_hda_codec_get_pincfg(codec, pin);
++
++	/* count line-out, too, as BIOS sets often so */
++	return get_defcfg_connect(pin_cfg) != AC_JACK_PORT_NONE &&
++		(get_defcfg_device(pin_cfg) == AC_JACK_LINE_OUT ||
++		 get_defcfg_device(pin_cfg) == AC_JACK_HP_OUT);
++}
++
++static void fixup_hp_headphone(struct hda_codec *codec, hda_nid_t pin)
++{
++	unsigned int pin_cfg = snd_hda_codec_get_pincfg(codec, pin);
++
++	/* It was changed in the BIOS to just satisfy MS DTM.
++	 * Lets turn it back into slaved HP
++	 */
++	pin_cfg = (pin_cfg & (~AC_DEFCFG_DEVICE)) |
++		(AC_JACK_HP_OUT << AC_DEFCFG_DEVICE_SHIFT);
++	pin_cfg = (pin_cfg & (~(AC_DEFCFG_DEF_ASSOC | AC_DEFCFG_SEQUENCE))) |
++		0x1f;
++	snd_hda_codec_set_pincfg(codec, pin, pin_cfg);
++}
+ 
+ static void stac92hd71bxx_fixup_hp(struct hda_codec *codec,
+ 				   const struct hda_fixup *fix, int action)
+@@ -3118,22 +3142,12 @@ static void stac92hd71bxx_fixup_hp(struct hda_codec *codec,
+ 	if (action != HDA_FIXUP_ACT_PRE_PROBE)
+ 		return;
+ 
+-	if (hp_blike_system(codec->core.subsystem_id)) {
+-		unsigned int pin_cfg = snd_hda_codec_get_pincfg(codec, 0x0f);
+-		if (get_defcfg_device(pin_cfg) == AC_JACK_LINE_OUT ||
+-			get_defcfg_device(pin_cfg) == AC_JACK_SPEAKER  ||
+-			get_defcfg_device(pin_cfg) == AC_JACK_HP_OUT) {
+-			/* It was changed in the BIOS to just satisfy MS DTM.
+-			 * Lets turn it back into slaved HP
+-			 */
+-			pin_cfg = (pin_cfg & (~AC_DEFCFG_DEVICE))
+-					| (AC_JACK_HP_OUT <<
+-						AC_DEFCFG_DEVICE_SHIFT);
+-			pin_cfg = (pin_cfg & (~(AC_DEFCFG_DEF_ASSOC
+-							| AC_DEFCFG_SEQUENCE)))
+-								| 0x1f;
+-			snd_hda_codec_set_pincfg(codec, 0x0f, pin_cfg);
+-		}
++	/* when both output A and F are assigned, these are supposedly
++	 * dock and built-in headphones; fix both pin configs
++	 */
++	if (is_hp_output(codec, 0x0a) && is_hp_output(codec, 0x0f)) {
++		fixup_hp_headphone(codec, 0x0a);
++		fixup_hp_headphone(codec, 0x0f);
+ 	}
+ 
+ 	if (find_mute_led_cfg(codec, 1))
+diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
+index 2306ccf7281e..77c963ced67a 100644
+--- a/sound/pci/rme96.c
++++ b/sound/pci/rme96.c
+@@ -741,10 +741,11 @@ snd_rme96_playback_setrate(struct rme96 *rme96,
+ 	{
+ 		/* change to/from double-speed: reset the DAC (if available) */
+ 		snd_rme96_reset_dac(rme96);
++		return 1; /* need to restore volume */
+ 	} else {
+ 		writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
++		return 0;
+ 	}
+-	return 0;
+ }
+ 
+ static int
+@@ -980,6 +981,7 @@ snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
+ 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
+ 	struct snd_pcm_runtime *runtime = substream->runtime;
+ 	int err, rate, dummy;
++	bool apply_dac_volume = false;
+ 
+ 	runtime->dma_area = (void __force *)(rme96->iobase +
+ 					     RME96_IO_PLAY_BUFFER);
+@@ -993,24 +995,26 @@ snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
+ 	{
+                 /* slave clock */
+                 if ((int)params_rate(params) != rate) {
+-			spin_unlock_irq(&rme96->lock);
+-			return -EIO;                    
+-                }
+-	} else if ((err = snd_rme96_playback_setrate(rme96, params_rate(params))) < 0) {
+-		spin_unlock_irq(&rme96->lock);
+-		return err;
+-	}
+-	if ((err = snd_rme96_playback_setformat(rme96, params_format(params))) < 0) {
+-		spin_unlock_irq(&rme96->lock);
+-		return err;
++			err = -EIO;
++			goto error;
++		}
++	} else {
++		err = snd_rme96_playback_setrate(rme96, params_rate(params));
++		if (err < 0)
++			goto error;
++		apply_dac_volume = err > 0; /* need to restore volume later? */
+ 	}
++
++	err = snd_rme96_playback_setformat(rme96, params_format(params));
++	if (err < 0)
++		goto error;
+ 	snd_rme96_setframelog(rme96, params_channels(params), 1);
+ 	if (rme96->capture_periodsize != 0) {
+ 		if (params_period_size(params) << rme96->playback_frlog !=
+ 		    rme96->capture_periodsize)
+ 		{
+-			spin_unlock_irq(&rme96->lock);
+-			return -EBUSY;
++			err = -EBUSY;
++			goto error;
+ 		}
+ 	}
+ 	rme96->playback_periodsize =
+@@ -1021,9 +1025,16 @@ snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
+ 		rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
+ 		writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
+ 	}
++
++	err = 0;
++ error:
+ 	spin_unlock_irq(&rme96->lock);
+-		
+-	return 0;
++	if (apply_dac_volume) {
++		usleep_range(3000, 10000);
++		snd_rme96_apply_dac_volume(rme96);
++	}
++
++	return err;
+ }
+ 
+ static int
+diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
+index ee91edcf3cb0..13191891fc4c 100644
+--- a/sound/soc/codecs/arizona.c
++++ b/sound/soc/codecs/arizona.c
+@@ -1354,7 +1354,7 @@ static int arizona_hw_params(struct snd_pcm_substream *substream,
+ 	bool reconfig;
+ 	unsigned int aif_tx_state, aif_rx_state;
+ 
+-	if (params_rate(params) % 8000)
++	if (params_rate(params) % 4000)
+ 		rates = &arizona_44k1_bclk_rates[0];
+ 	else
+ 		rates = &arizona_48k_bclk_rates[0];
+diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c
+index c5f35a07e8e4..3ad7f5be1cfa 100644
+--- a/sound/soc/codecs/es8328.c
++++ b/sound/soc/codecs/es8328.c
+@@ -85,7 +85,15 @@ static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0);
+ static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
+ static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 300, 0);
+ 
+-static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
++static const struct {
++	int rate;
++	unsigned int val;
++} deemph_settings[] = {
++	{ 0,     ES8328_DACCONTROL6_DEEMPH_OFF },
++	{ 32000, ES8328_DACCONTROL6_DEEMPH_32k },
++	{ 44100, ES8328_DACCONTROL6_DEEMPH_44_1k },
++	{ 48000, ES8328_DACCONTROL6_DEEMPH_48k },
++};
+ 
+ static int es8328_set_deemph(struct snd_soc_codec *codec)
+ {
+@@ -97,21 +105,22 @@ static int es8328_set_deemph(struct snd_soc_codec *codec)
+ 	 * rate.
+ 	 */
+ 	if (es8328->deemph) {
+-		best = 1;
+-		for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
+-			if (abs(deemph_settings[i] - es8328->playback_fs) <
+-			    abs(deemph_settings[best] - es8328->playback_fs))
++		best = 0;
++		for (i = 1; i < ARRAY_SIZE(deemph_settings); i++) {
++			if (abs(deemph_settings[i].rate - es8328->playback_fs) <
++			    abs(deemph_settings[best].rate - es8328->playback_fs))
+ 				best = i;
+ 		}
+ 
+-		val = best << 1;
++		val = deemph_settings[best].val;
+ 	} else {
+-		val = 0;
++		val = ES8328_DACCONTROL6_DEEMPH_OFF;
+ 	}
+ 
+ 	dev_dbg(codec->dev, "Set deemphasis %d\n", val);
+ 
+-	return snd_soc_update_bits(codec, ES8328_DACCONTROL6, 0x6, val);
++	return snd_soc_update_bits(codec, ES8328_DACCONTROL6,
++			ES8328_DACCONTROL6_DEEMPH_MASK, val);
+ }
+ 
+ static int es8328_get_deemph(struct snd_kcontrol *kcontrol,
+diff --git a/sound/soc/codecs/es8328.h b/sound/soc/codecs/es8328.h
+index cb36afe10c0e..156c748c89c7 100644
+--- a/sound/soc/codecs/es8328.h
++++ b/sound/soc/codecs/es8328.h
+@@ -153,6 +153,7 @@ int es8328_probe(struct device *dev, struct regmap *regmap);
+ #define ES8328_DACCONTROL6_CLICKFREE (1 << 3)
+ #define ES8328_DACCONTROL6_DAC_INVR (1 << 4)
+ #define ES8328_DACCONTROL6_DAC_INVL (1 << 5)
++#define ES8328_DACCONTROL6_DEEMPH_MASK (3 << 6)
+ #define ES8328_DACCONTROL6_DEEMPH_OFF (0 << 6)
+ #define ES8328_DACCONTROL6_DEEMPH_32k (1 << 6)
+ #define ES8328_DACCONTROL6_DEEMPH_44_1k (2 << 6)
+diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
+index 118b0034ba23..154c1a24a303 100644
+--- a/sound/soc/codecs/wm8962.c
++++ b/sound/soc/codecs/wm8962.c
+@@ -365,8 +365,8 @@ static struct reg_default wm8962_reg[] = {
+ 	{ 16924, 0x0059 },   /* R16924 - HDBASS_PG_1 */
+ 	{ 16925, 0x999A },   /* R16925 - HDBASS_PG_0 */
+ 
+-	{ 17048, 0x0083 },   /* R17408 - HPF_C_1 */
+-	{ 17049, 0x98AD },   /* R17409 - HPF_C_0 */
++	{ 17408, 0x0083 },   /* R17408 - HPF_C_1 */
++	{ 17409, 0x98AD },   /* R17409 - HPF_C_0 */
+ 
+ 	{ 17920, 0x007F },   /* R17920 - ADCL_RETUNE_C1_1 */
+ 	{ 17921, 0xFFFF },   /* R17921 - ADCL_RETUNE_C1_0 */
+diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c
+index ff0e4646b934..88317c1b7f96 100644
+--- a/sound/soc/codecs/wm8974.c
++++ b/sound/soc/codecs/wm8974.c
+@@ -575,6 +575,7 @@ static const struct regmap_config wm8974_regmap = {
+ 	.max_register = WM8974_MONOMIX,
+ 	.reg_defaults = wm8974_reg_defaults,
+ 	.num_reg_defaults = ARRAY_SIZE(wm8974_reg_defaults),
++	.cache_type = REGCACHE_FLAT,
+ };
+ 
+ static int wm8974_probe(struct snd_soc_codec *codec)
+diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
+index 23c91fa65ab8..76dd8c6aa4f0 100644
+--- a/sound/soc/davinci/davinci-mcasp.c
++++ b/sound/soc/davinci/davinci-mcasp.c
+@@ -221,8 +221,8 @@ static void mcasp_start_tx(struct davinci_mcasp *mcasp)
+ 
+ 	/* wait for XDATA to be cleared */
+ 	cnt = 0;
+-	while (!(mcasp_get_reg(mcasp, DAVINCI_MCASP_TXSTAT_REG) &
+-		 ~XRDATA) && (cnt < 100000))
++	while ((mcasp_get_reg(mcasp, DAVINCI_MCASP_TXSTAT_REG) & XRDATA) &&
++	       (cnt < 100000))
+ 		cnt++;
+ 
+ 	/* Release TX state machine */
+diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c
+index 8c7dc51b1c4f..f7a0cb786d5c 100644
+--- a/sound/soc/sh/rcar/gen.c
++++ b/sound/soc/sh/rcar/gen.c
+@@ -214,7 +214,7 @@ static int rsnd_gen2_probe(struct platform_device *pdev,
+ 		RSND_GEN_S_REG(SCU_SYS_STATUS0,	0x1c8),
+ 		RSND_GEN_S_REG(SCU_SYS_INT_EN0,	0x1cc),
+ 		RSND_GEN_S_REG(SCU_SYS_STATUS1,	0x1d0),
+-		RSND_GEN_S_REG(SCU_SYS_INT_EN1,	0x1c4),
++		RSND_GEN_S_REG(SCU_SYS_INT_EN1,	0x1d4),
+ 		RSND_GEN_M_REG(SRC_SWRSR,	0x200,	0x40),
+ 		RSND_GEN_M_REG(SRC_SRCIR,	0x204,	0x40),
+ 		RSND_GEN_M_REG(SRC_ADINR,	0x214,	0x40),
+diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
+index 025c38fbe3c0..1874cf0e6cab 100644
+--- a/sound/soc/soc-compress.c
++++ b/sound/soc/soc-compress.c
+@@ -623,6 +623,7 @@ int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
+ 	struct snd_pcm *be_pcm;
+ 	char new_name[64];
+ 	int ret = 0, direction = 0;
++	int playback = 0, capture = 0;
+ 
+ 	if (rtd->num_codecs > 1) {
+ 		dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n");
+@@ -634,11 +635,27 @@ int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
+ 			rtd->dai_link->stream_name, codec_dai->name, num);
+ 
+ 	if (codec_dai->driver->playback.channels_min)
++		playback = 1;
++	if (codec_dai->driver->capture.channels_min)
++		capture = 1;
++
++	capture = capture && cpu_dai->driver->capture.channels_min;
++	playback = playback && cpu_dai->driver->playback.channels_min;
++
++	/*
++	 * Compress devices are unidirectional so only one of the directions
++	 * should be set, check for that (xor)
++	 */
++	if (playback + capture != 1) {
++		dev_err(rtd->card->dev, "Invalid direction for compress P %d, C %d\n",
++				playback, capture);
++		return -EINVAL;
++	}
++
++	if(playback)
+ 		direction = SND_COMPRESS_PLAYBACK;
+-	else if (codec_dai->driver->capture.channels_min)
+-		direction = SND_COMPRESS_CAPTURE;
+ 	else
+-		return -EINVAL;
++		direction = SND_COMPRESS_CAPTURE;
+ 
+ 	compr = kzalloc(sizeof(*compr), GFP_KERNEL);
+ 	if (compr == NULL) {
+diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
+index cd8ed2e393a2..f9a9752d4dbc 100644
+--- a/sound/usb/mixer.c
++++ b/sound/usb/mixer.c
+@@ -1336,6 +1336,8 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc,
+ 		}
+ 	}
+ 
++	snd_usb_mixer_fu_apply_quirk(state->mixer, cval, unitid, kctl);
++
+ 	range = (cval->max - cval->min) / cval->res;
+ 	/*
+ 	 * Are there devices with volume range more than 255? I use a bit more
+diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
+index 6a803eff87f7..ddca6547399b 100644
+--- a/sound/usb/mixer_maps.c
++++ b/sound/usb/mixer_maps.c
+@@ -348,13 +348,6 @@ static struct usbmix_name_map bose_companion5_map[] = {
+ 	{ 0 }	/* terminator */
+ };
+ 
+-/* Dragonfly DAC 1.2, the dB conversion factor is 1 instead of 256 */
+-static struct usbmix_dB_map dragonfly_1_2_dB = {0, 5000};
+-static struct usbmix_name_map dragonfly_1_2_map[] = {
+-	{ 7, NULL, .dB = &dragonfly_1_2_dB },
+-	{ 0 }	/* terminator */
+-};
+-
+ /*
+  * Control map entries
+  */
+@@ -470,11 +463,6 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = {
+ 		.id = USB_ID(0x05a7, 0x1020),
+ 		.map = bose_companion5_map,
+ 	},
+-	{
+-		/* Dragonfly DAC 1.2 */
+-		.id = USB_ID(0x21b4, 0x0081),
+-		.map = dragonfly_1_2_map,
+-	},
+ 	{ 0 } /* terminator */
+ };
+ 
+diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
+index 337c317ead6f..db9547d04f38 100644
+--- a/sound/usb/mixer_quirks.c
++++ b/sound/usb/mixer_quirks.c
+@@ -37,6 +37,7 @@
+ #include <sound/control.h>
+ #include <sound/hwdep.h>
+ #include <sound/info.h>
++#include <sound/tlv.h>
+ 
+ #include "usbaudio.h"
+ #include "mixer.h"
+@@ -802,7 +803,7 @@ static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol,
+ 		return 0;
+ 
+ 	kcontrol->private_value &= ~(0xff << 24);
+-	kcontrol->private_value |= newval;
++	kcontrol->private_value |= (unsigned int)newval << 24;
+ 	err = snd_ni_update_cur_val(list);
+ 	return err < 0 ? err : 1;
+ }
+@@ -1843,3 +1844,39 @@ void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer,
+ 	}
+ }
+ 
++static void snd_dragonfly_quirk_db_scale(struct usb_mixer_interface *mixer,
++					 struct snd_kcontrol *kctl)
++{
++	/* Approximation using 10 ranges based on output measurement on hw v1.2.
++	 * This seems close to the cubic mapping e.g. alsamixer uses. */
++	static const DECLARE_TLV_DB_RANGE(scale,
++		 0,  1, TLV_DB_MINMAX_ITEM(-5300, -4970),
++		 2,  5, TLV_DB_MINMAX_ITEM(-4710, -4160),
++		 6,  7, TLV_DB_MINMAX_ITEM(-3884, -3710),
++		 8, 14, TLV_DB_MINMAX_ITEM(-3443, -2560),
++		15, 16, TLV_DB_MINMAX_ITEM(-2475, -2324),
++		17, 19, TLV_DB_MINMAX_ITEM(-2228, -2031),
++		20, 26, TLV_DB_MINMAX_ITEM(-1910, -1393),
++		27, 31, TLV_DB_MINMAX_ITEM(-1322, -1032),
++		32, 40, TLV_DB_MINMAX_ITEM(-968, -490),
++		41, 50, TLV_DB_MINMAX_ITEM(-441, 0),
++	);
++
++	usb_audio_info(mixer->chip, "applying DragonFly dB scale quirk\n");
++	kctl->tlv.p = scale;
++	kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
++	kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
++}
++
++void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
++				  struct usb_mixer_elem_info *cval, int unitid,
++				  struct snd_kcontrol *kctl)
++{
++	switch (mixer->chip->usb_id) {
++	case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */
++		if (unitid == 7 && cval->min == 0 && cval->max == 50)
++			snd_dragonfly_quirk_db_scale(mixer, kctl);
++		break;
++	}
++}
++
+diff --git a/sound/usb/mixer_quirks.h b/sound/usb/mixer_quirks.h
+index bdbfab093816..177c329cd4dd 100644
+--- a/sound/usb/mixer_quirks.h
++++ b/sound/usb/mixer_quirks.h
+@@ -9,5 +9,9 @@ void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
+ void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer,
+ 				    int unitid);
+ 
++void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
++				  struct usb_mixer_elem_info *cval, int unitid,
++				  struct snd_kcontrol *kctl);
++
+ #endif /* SND_USB_MIXER_QUIRKS_H */
+ 
+diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
+index eef9b8e4b949..fb9a8a5787a6 100644
+--- a/sound/usb/quirks.c
++++ b/sound/usb/quirks.c
+@@ -1122,6 +1122,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
+ 	case USB_ID(0x045E, 0x0779): /* MS Lifecam HD-3000 */
+ 	case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
+ 	case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
++	case USB_ID(0x21B4, 0x0081): /* AudioQuest DragonFly */
+ 		return true;
+ 	}
+ 	return false;
+@@ -1265,6 +1266,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
+ 	case USB_ID(0x20b1, 0x3008): /* iFi Audio micro/nano iDSD */
+ 	case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */
+ 	case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */
++	case USB_ID(0x22d8, 0x0416): /* OPPO HA-1*/
+ 		if (fp->altsetting == 2)
+ 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
+ 		break;