From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:4.1 commit in: /
Date: Sun, 31 Jan 2016 23:29:38 +0000 (UTC) [thread overview]
Message-ID: <1454282983.8e7f5205bb1197eb27e5adb6cd52da00a9452499.mpagano@gentoo> (raw)
commit: 8e7f5205bb1197eb27e5adb6cd52da00a9452499
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Sun Jan 31 23:29:43 2016 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Sun Jan 31 23:29:43 2016 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=8e7f5205
Linux patch 4.1.17
0000_README | 4 +
1016_linux-4.1.17.patch | 4830 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 4834 insertions(+)
diff --git a/0000_README b/0000_README
index 1ca97cd..8b9fa0f 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 0000000..214c6ac
--- /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(¤t->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(®ister_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(®ister_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(®ister_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(®ister_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(®ister_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;
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