commit: 1436107c61cfd76a7a9a3953a10991cd3dd0a0e3 Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> AuthorDate: Tue Oct 13 02:09:40 2015 +0000 Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> CommitDate: Tue Oct 13 02:09:40 2015 +0000 URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=1436107c
Linux patch 3.14.54 0000_README | 4 + 1053_linux-3.14.54.patch | 3609 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 3613 insertions(+) diff --git a/0000_README b/0000_README index 3ba7817..12856a3 100644 --- a/0000_README +++ b/0000_README @@ -254,6 +254,10 @@ Patch: 1052_linux-3.14.53.patch From: http://www.kernel.org Desc: Linux 3.14.53 +Patch: 1053_linux-3.14.54.patch +From: http://www.kernel.org +Desc: Linux 3.14.54 + 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/1053_linux-3.14.54.patch b/1053_linux-3.14.54.patch new file mode 100644 index 0000000..836dcd8 --- /dev/null +++ b/1053_linux-3.14.54.patch @@ -0,0 +1,3609 @@ +diff --git a/Makefile b/Makefile +index 86d227774ae6..22c91fa0411e 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,8 +1,8 @@ + VERSION = 3 + PATCHLEVEL = 14 +-SUBLEVEL = 53 ++SUBLEVEL = 54 + EXTRAVERSION = +-NAME = Remembering Coco ++NAME = Kernel Recipes 2015 + + # *DOCUMENTATION* + # To see a list of typical targets execute "make help" +diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig +index 65b788410bd9..9a406627b0ef 100644 +--- a/arch/arm64/Kconfig ++++ b/arch/arm64/Kconfig +@@ -68,6 +68,10 @@ config NO_IOPORT + config STACKTRACE_SUPPORT + def_bool y + ++config ILLEGAL_POINTER_VALUE ++ hex ++ default 0xdead000000000000 ++ + config LOCKDEP_SUPPORT + def_bool y + +@@ -302,6 +306,22 @@ menu "CPU Power Management" + + source "drivers/cpuidle/Kconfig" + ++config ARM64_ERRATUM_843419 ++ bool "Cortex-A53: 843419: A load or store might access an incorrect address" ++ depends on MODULES ++ default y ++ help ++ This option builds kernel modules using the large memory model in ++ order to avoid the use of the ADRP instruction, which can cause ++ a subsequent memory access to use an incorrect address on Cortex-A53 ++ parts up to r0p4. ++ ++ Note that the kernel itself must be linked with a version of ld ++ which fixes potentially affected ADRP instructions through the ++ use of veneers. ++ ++ If unsure, say Y. ++ + endmenu + + source "net/Kconfig" +diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile +index 2fceb71ac3b7..0ab1a34dab58 100644 +--- a/arch/arm64/Makefile ++++ b/arch/arm64/Makefile +@@ -34,6 +34,10 @@ comma = , + + CHECKFLAGS += -D__aarch64__ + ++ifeq ($(CONFIG_ARM64_ERRATUM_843419), y) ++CFLAGS_MODULE += -mcmodel=large ++endif ++ + # Default value + head-y := arch/arm64/kernel/head.o + +diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S +index 0b281fffda51..150492b6cd02 100644 +--- a/arch/arm64/kernel/head.S ++++ b/arch/arm64/kernel/head.S +@@ -203,6 +203,11 @@ CPU_LE( movk x0, #0x30d0, lsl #16 ) // Clear EE and E0E on LE systems + msr hstr_el2, xzr // Disable CP15 traps to EL2 + #endif + ++ /* EL2 debug */ ++ mrs x0, pmcr_el0 // Disable debug access traps ++ ubfx x0, x0, #11, #5 // to EL2 and allow access to ++ msr mdcr_el2, x0 // all PMU counters from EL1 ++ + /* Stage-2 translation */ + msr vttbr_el2, xzr + +diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c +index 1eb1cc955139..e366329d96d8 100644 +--- a/arch/arm64/kernel/module.c ++++ b/arch/arm64/kernel/module.c +@@ -330,12 +330,14 @@ int apply_relocate_add(Elf64_Shdr *sechdrs, + ovf = reloc_insn_imm(RELOC_OP_PREL, loc, val, 0, 21, + AARCH64_INSN_IMM_ADR); + break; ++#ifndef CONFIG_ARM64_ERRATUM_843419 + case R_AARCH64_ADR_PREL_PG_HI21_NC: + overflow_check = false; + case R_AARCH64_ADR_PREL_PG_HI21: + ovf = reloc_insn_imm(RELOC_OP_PAGE, loc, val, 12, 21, + AARCH64_INSN_IMM_ADR); + break; ++#endif + case R_AARCH64_ADD_ABS_LO12_NC: + case R_AARCH64_LDST8_ABS_LO12_NC: + overflow_check = false; +diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c +index a966baccf1c0..cbe646fa340b 100644 +--- a/arch/arm64/kernel/signal32.c ++++ b/arch/arm64/kernel/signal32.c +@@ -203,14 +203,32 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) + + /* + * VFP save/restore code. ++ * ++ * We have to be careful with endianness, since the fpsimd context-switch ++ * code operates on 128-bit (Q) register values whereas the compat ABI ++ * uses an array of 64-bit (D) registers. Consequently, we need to swap ++ * the two halves of each Q register when running on a big-endian CPU. + */ ++union __fpsimd_vreg { ++ __uint128_t raw; ++ struct { ++#ifdef __AARCH64EB__ ++ u64 hi; ++ u64 lo; ++#else ++ u64 lo; ++ u64 hi; ++#endif ++ }; ++}; ++ + static int compat_preserve_vfp_context(struct compat_vfp_sigframe __user *frame) + { + struct fpsimd_state *fpsimd = ¤t->thread.fpsimd_state; + compat_ulong_t magic = VFP_MAGIC; + compat_ulong_t size = VFP_STORAGE_SIZE; + compat_ulong_t fpscr, fpexc; +- int err = 0; ++ int i, err = 0; + + /* + * Save the hardware registers to the fpsimd_state structure. +@@ -226,10 +244,15 @@ static int compat_preserve_vfp_context(struct compat_vfp_sigframe __user *frame) + /* + * Now copy the FP registers. Since the registers are packed, + * we can copy the prefix we want (V0-V15) as it is. +- * FIXME: Won't work if big endian. + */ +- err |= __copy_to_user(&frame->ufp.fpregs, fpsimd->vregs, +- sizeof(frame->ufp.fpregs)); ++ for (i = 0; i < ARRAY_SIZE(frame->ufp.fpregs); i += 2) { ++ union __fpsimd_vreg vreg = { ++ .raw = fpsimd->vregs[i >> 1], ++ }; ++ ++ __put_user_error(vreg.lo, &frame->ufp.fpregs[i], err); ++ __put_user_error(vreg.hi, &frame->ufp.fpregs[i + 1], err); ++ } + + /* Create an AArch32 fpscr from the fpsr and the fpcr. */ + fpscr = (fpsimd->fpsr & VFP_FPSCR_STAT_MASK) | +@@ -254,7 +277,7 @@ static int compat_restore_vfp_context(struct compat_vfp_sigframe __user *frame) + compat_ulong_t magic = VFP_MAGIC; + compat_ulong_t size = VFP_STORAGE_SIZE; + compat_ulong_t fpscr; +- int err = 0; ++ int i, err = 0; + + __get_user_error(magic, &frame->magic, err); + __get_user_error(size, &frame->size, err); +@@ -264,12 +287,14 @@ static int compat_restore_vfp_context(struct compat_vfp_sigframe __user *frame) + if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE) + return -EINVAL; + +- /* +- * Copy the FP registers into the start of the fpsimd_state. +- * FIXME: Won't work if big endian. +- */ +- err |= __copy_from_user(fpsimd.vregs, frame->ufp.fpregs, +- sizeof(frame->ufp.fpregs)); ++ /* Copy the FP registers into the start of the fpsimd_state. */ ++ for (i = 0; i < ARRAY_SIZE(frame->ufp.fpregs); i += 2) { ++ union __fpsimd_vreg vreg; ++ ++ __get_user_error(vreg.lo, &frame->ufp.fpregs[i], err); ++ __get_user_error(vreg.hi, &frame->ufp.fpregs[i + 1], err); ++ fpsimd.vregs[i >> 1] = vreg.raw; ++ } + + /* Extract the fpsr and the fpcr from the fpscr */ + __get_user_error(fpscr, &frame->ufp.fpscr, err); +diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S +index 3aaf3bc4ad8a..1343b2020891 100644 +--- a/arch/arm64/kvm/hyp.S ++++ b/arch/arm64/kvm/hyp.S +@@ -485,8 +485,6 @@ CPU_BE( rev w5, w5 ) + mrs x3, cntv_ctl_el0 + and x3, x3, #3 + str w3, [x0, #VCPU_TIMER_CNTV_CTL] +- bic x3, x3, #1 // Clear Enable +- msr cntv_ctl_el0, x3 + + isb + +@@ -494,6 +492,9 @@ CPU_BE( rev w5, w5 ) + str x3, [x0, #VCPU_TIMER_CNTV_CVAL] + + 1: ++ // Disable the virtual timer ++ msr cntv_ctl_el0, xzr ++ + // Allow physical timer/counter access for the host + mrs x2, cnthctl_el2 + orr x2, x2, #3 +diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c +index 8ceac4785609..1ce320e4d3d8 100644 +--- a/arch/parisc/kernel/irq.c ++++ b/arch/parisc/kernel/irq.c +@@ -507,8 +507,8 @@ void do_cpu_irq_mask(struct pt_regs *regs) + struct pt_regs *old_regs; + unsigned long eirr_val; + int irq, cpu = smp_processor_id(); +-#ifdef CONFIG_SMP + struct irq_desc *desc; ++#ifdef CONFIG_SMP + cpumask_t dest; + #endif + +@@ -521,8 +521,12 @@ void do_cpu_irq_mask(struct pt_regs *regs) + goto set_out; + irq = eirr_to_irq(eirr_val); + +-#ifdef CONFIG_SMP ++ /* Filter out spurious interrupts, mostly from serial port at bootup */ + desc = irq_to_desc(irq); ++ if (unlikely(!desc->action)) ++ goto set_out; ++ ++#ifdef CONFIG_SMP + cpumask_copy(&dest, desc->irq_data.affinity); + if (irqd_is_per_cpu(&desc->irq_data) && + !cpu_isset(smp_processor_id(), dest)) { +diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S +index 7ef22e3387e0..0b8d26d3ba43 100644 +--- a/arch/parisc/kernel/syscall.S ++++ b/arch/parisc/kernel/syscall.S +@@ -821,7 +821,7 @@ cas2_action: + /* 64bit CAS */ + #ifdef CONFIG_64BIT + 19: ldd,ma 0(%sr3,%r26), %r29 +- sub,= %r29, %r25, %r0 ++ sub,*= %r29, %r25, %r0 + b,n cas2_end + 20: std,ma %r24, 0(%sr3,%r26) + copy %r0, %r28 +diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h +index 7b3d54fae46f..7356053b1133 100644 +--- a/arch/powerpc/include/asm/pgtable-ppc64.h ++++ b/arch/powerpc/include/asm/pgtable-ppc64.h +@@ -135,7 +135,19 @@ + #define pte_iterate_hashed_end() } while(0) + + #ifdef CONFIG_PPC_HAS_HASH_64K +-#define pte_pagesize_index(mm, addr, pte) get_slice_psize(mm, addr) ++/* ++ * We expect this to be called only for user addresses or kernel virtual ++ * addresses other than the linear mapping. ++ */ ++#define pte_pagesize_index(mm, addr, pte) \ ++ ({ \ ++ unsigned int psize; \ ++ if (is_kernel_addr(addr)) \ ++ psize = MMU_PAGE_4K; \ ++ else \ ++ psize = get_slice_psize(mm, addr); \ ++ psize; \ ++ }) + #else + #define pte_pagesize_index(mm, addr, pte) MMU_PAGE_4K + #endif +diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h +index 9bd52c65e66f..14de1385dedb 100644 +--- a/arch/powerpc/include/asm/rtas.h ++++ b/arch/powerpc/include/asm/rtas.h +@@ -255,6 +255,7 @@ extern void rtas_power_off(void); + extern void rtas_halt(void); + extern void rtas_os_term(char *str); + extern int rtas_get_sensor(int sensor, int index, int *state); ++extern int rtas_get_sensor_fast(int sensor, int index, int *state); + extern int rtas_get_power_level(int powerdomain, int *level); + extern int rtas_set_power_level(int powerdomain, int level, int *setlevel); + extern bool rtas_indicator_present(int token, int *maxindex); +diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c +index 4cf674d7d5ae..c4bc8d6cfd79 100644 +--- a/arch/powerpc/kernel/rtas.c ++++ b/arch/powerpc/kernel/rtas.c +@@ -584,6 +584,23 @@ int rtas_get_sensor(int sensor, int index, int *state) + } + EXPORT_SYMBOL(rtas_get_sensor); + ++int rtas_get_sensor_fast(int sensor, int index, int *state) ++{ ++ int token = rtas_token("get-sensor-state"); ++ int rc; ++ ++ if (token == RTAS_UNKNOWN_SERVICE) ++ return -ENOENT; ++ ++ rc = rtas_call(token, 2, 2, state, sensor, index); ++ WARN_ON(rc == RTAS_BUSY || (rc >= RTAS_EXTENDED_DELAY_MIN && ++ rc <= RTAS_EXTENDED_DELAY_MAX)); ++ ++ if (rc < 0) ++ return rtas_error_rc(rc); ++ return rc; ++} ++ + bool rtas_indicator_present(int token, int *maxindex) + { + int proplen, count, i; +diff --git a/arch/powerpc/mm/hugepage-hash64.c b/arch/powerpc/mm/hugepage-hash64.c +index 5f5e6328c21c..5061c6f676da 100644 +--- a/arch/powerpc/mm/hugepage-hash64.c ++++ b/arch/powerpc/mm/hugepage-hash64.c +@@ -136,7 +136,6 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, + BUG_ON(index >= 4096); + + vpn = hpt_vpn(ea, vsid, ssize); +- hash = hpt_hash(vpn, shift, ssize); + hpte_slot_array = get_hpte_slot_array(pmdp); + if (psize == MMU_PAGE_4K) { + /* +@@ -151,6 +150,7 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, + valid = hpte_valid(hpte_slot_array, index); + if (valid) { + /* update the hpte bits */ ++ hash = hpt_hash(vpn, shift, ssize); + hidx = hpte_hash_index(hpte_slot_array, index); + if (hidx & _PTEIDX_SECONDARY) + hash = ~hash; +@@ -176,6 +176,7 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, + if (!valid) { + unsigned long hpte_group; + ++ hash = hpt_hash(vpn, shift, ssize); + /* insert new entry */ + pa = pmd_pfn(__pmd(old_pmd)) << PAGE_SHIFT; + new_pmd |= _PAGE_HASHPTE; +diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c +index 721c0586b284..50fd3ac7b7bf 100644 +--- a/arch/powerpc/platforms/pseries/ras.c ++++ b/arch/powerpc/platforms/pseries/ras.c +@@ -187,7 +187,8 @@ static irqreturn_t ras_epow_interrupt(int irq, void *dev_id) + int state; + int critical; + +- status = rtas_get_sensor(EPOW_SENSOR_TOKEN, EPOW_SENSOR_INDEX, &state); ++ status = rtas_get_sensor_fast(EPOW_SENSOR_TOKEN, EPOW_SENSOR_INDEX, ++ &state); + + if (state > 3) + critical = 1; /* Time Critical */ +diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S +index 06469ee0f26e..6d6ab2b0bdfa 100644 +--- a/arch/x86/kernel/entry_64.S ++++ b/arch/x86/kernel/entry_64.S +@@ -1702,11 +1702,12 @@ ENTRY(nmi) + * If the variable is not set and the stack is not the NMI + * stack then: + * o Set the special variable on the stack +- * o Copy the interrupt frame into a "saved" location on the stack +- * o Copy the interrupt frame into a "copy" location on the stack ++ * o Copy the interrupt frame into an "outermost" location on the ++ * stack ++ * o Copy the interrupt frame into an "iret" location on the stack + * o Continue processing the NMI + * If the variable is set or the previous stack is the NMI stack: +- * o Modify the "copy" location to jump to the repeate_nmi ++ * o Modify the "iret" location to jump to the repeat_nmi + * o return back to the first NMI + * + * Now on exit of the first NMI, we first clear the stack variable +@@ -1715,52 +1716,184 @@ ENTRY(nmi) + * a nested NMI that updated the copy interrupt stack frame, a + * jump will be made to the repeat_nmi code that will handle the second + * NMI. ++ * ++ * However, espfix prevents us from directly returning to userspace ++ * with a single IRET instruction. Similarly, IRET to user mode ++ * can fault. We therefore handle NMIs from user space like ++ * other IST entries. + */ + + /* Use %rdx as out temp variable throughout */ + pushq_cfi %rdx + CFI_REL_OFFSET rdx, 0 + ++ testb $3, CS-RIP+8(%rsp) ++ jz .Lnmi_from_kernel ++ ++ /* ++ * NMI from user mode. We need to run on the thread stack, but we ++ * can't go through the normal entry paths: NMIs are masked, and ++ * we don't want to enable interrupts, because then we'll end ++ * up in an awkward situation in which IRQs are on but NMIs ++ * are off. ++ */ ++ SWAPGS ++ cld ++ movq %rsp, %rdx ++ movq PER_CPU_VAR(kernel_stack), %rsp ++ addq $KERNEL_STACK_OFFSET, %rsp ++ pushq 5*8(%rdx) /* pt_regs->ss */ ++ pushq 4*8(%rdx) /* pt_regs->rsp */ ++ pushq 3*8(%rdx) /* pt_regs->flags */ ++ pushq 2*8(%rdx) /* pt_regs->cs */ ++ pushq 1*8(%rdx) /* pt_regs->rip */ ++ pushq $-1 /* pt_regs->orig_ax */ ++ pushq %rdi /* pt_regs->di */ ++ pushq %rsi /* pt_regs->si */ ++ pushq (%rdx) /* pt_regs->dx */ ++ pushq %rcx /* pt_regs->cx */ ++ pushq %rax /* pt_regs->ax */ ++ pushq %r8 /* pt_regs->r8 */ ++ pushq %r9 /* pt_regs->r9 */ ++ pushq %r10 /* pt_regs->r10 */ ++ pushq %r11 /* pt_regs->r11 */ ++ pushq %rbx /* pt_regs->rbx */ ++ pushq %rbp /* pt_regs->rbp */ ++ pushq %r12 /* pt_regs->r12 */ ++ pushq %r13 /* pt_regs->r13 */ ++ pushq %r14 /* pt_regs->r14 */ ++ pushq %r15 /* pt_regs->r15 */ ++ ++ /* ++ * At this point we no longer need to worry about stack damage ++ * due to nesting -- we're on the normal thread stack and we're ++ * done with the NMI stack. ++ */ ++ movq %rsp, %rdi ++ movq $-1, %rsi ++ call do_nmi ++ ++ /* ++ * Return back to user mode. We must *not* do the normal exit ++ * work, because we don't want to enable interrupts. Fortunately, ++ * do_nmi doesn't modify pt_regs. ++ */ ++ SWAPGS ++ ++ /* ++ * Open-code the entire return process for compatibility with varying ++ * register layouts across different kernel versions. ++ */ ++ addq $6*8, %rsp /* skip bx, bp, and r12-r15 */ ++ popq %r11 /* pt_regs->r11 */ ++ popq %r10 /* pt_regs->r10 */ ++ popq %r9 /* pt_regs->r9 */ ++ popq %r8 /* pt_regs->r8 */ ++ popq %rax /* pt_regs->ax */ ++ popq %rcx /* pt_regs->cx */ ++ popq %rdx /* pt_regs->dx */ ++ popq %rsi /* pt_regs->si */ ++ popq %rdi /* pt_regs->di */ ++ addq $8, %rsp /* skip orig_ax */ ++ INTERRUPT_RETURN ++ ++.Lnmi_from_kernel: + /* +- * If %cs was not the kernel segment, then the NMI triggered in user +- * space, which means it is definitely not nested. ++ * Here's what our stack frame will look like: ++ * +---------------------------------------------------------+ ++ * | original SS | ++ * | original Return RSP | ++ * | original RFLAGS | ++ * | original CS | ++ * | original RIP | ++ * +---------------------------------------------------------+ ++ * | temp storage for rdx | ++ * +---------------------------------------------------------+ ++ * | "NMI executing" variable | ++ * +---------------------------------------------------------+ ++ * | iret SS } Copied from "outermost" frame | ++ * | iret Return RSP } on each loop iteration; overwritten | ++ * | iret RFLAGS } by a nested NMI to force another | ++ * | iret CS } iteration if needed. | ++ * | iret RIP } | ++ * +---------------------------------------------------------+ ++ * | outermost SS } initialized in first_nmi; | ++ * | outermost Return RSP } will not be changed before | ++ * | outermost RFLAGS } NMI processing is done. | ++ * | outermost CS } Copied to "iret" frame on each | ++ * | outermost RIP } iteration. | ++ * +---------------------------------------------------------+ ++ * | pt_regs | ++ * +---------------------------------------------------------+ ++ * ++ * The "original" frame is used by hardware. Before re-enabling ++ * NMIs, we need to be done with it, and we need to leave enough ++ * space for the asm code here. ++ * ++ * We return by executing IRET while RSP points to the "iret" frame. ++ * That will either return for real or it will loop back into NMI ++ * processing. ++ * ++ * The "outermost" frame is copied to the "iret" frame on each ++ * iteration of the loop, so each iteration starts with the "iret" ++ * frame pointing to the final return target. + */ +- cmpl $__KERNEL_CS, 16(%rsp) +- jne first_nmi + + /* +- * Check the special variable on the stack to see if NMIs are +- * executing. ++ * Determine whether we're a nested NMI. ++ * ++ * If we interrupted kernel code between repeat_nmi and ++ * end_repeat_nmi, then we are a nested NMI. We must not ++ * modify the "iret" frame because it's being written by ++ * the outer NMI. That's okay; the outer NMI handler is ++ * about to about to call do_nmi anyway, so we can just ++ * resume the outer NMI. ++ */ ++ movq $repeat_nmi, %rdx ++ cmpq 8(%rsp), %rdx ++ ja 1f ++ movq $end_repeat_nmi, %rdx ++ cmpq 8(%rsp), %rdx ++ ja nested_nmi_out ++1: ++ ++ /* ++ * Now check "NMI executing". If it's set, then we're nested. ++ * This will not detect if we interrupted an outer NMI just ++ * before IRET. + */ + cmpl $1, -8(%rsp) + je nested_nmi + + /* +- * Now test if the previous stack was an NMI stack. +- * We need the double check. We check the NMI stack to satisfy the +- * race when the first NMI clears the variable before returning. +- * We check the variable because the first NMI could be in a +- * breakpoint routine using a breakpoint stack. ++ * Now test if the previous stack was an NMI stack. This covers ++ * the case where we interrupt an outer NMI after it clears ++ * "NMI executing" but before IRET. We need to be careful, though: ++ * there is one case in which RSP could point to the NMI stack ++ * despite there being no NMI active: naughty userspace controls ++ * RSP at the very beginning of the SYSCALL targets. We can ++ * pull a fast one on naughty userspace, though: we program ++ * SYSCALL to mask DF, so userspace cannot cause DF to be set ++ * if it controls the kernel's RSP. We set DF before we clear ++ * "NMI executing". + */ + lea 6*8(%rsp), %rdx + test_in_nmi rdx, 4*8(%rsp), nested_nmi, first_nmi ++ ++ /* Ah, it is within the NMI stack. */ ++ ++ testb $(X86_EFLAGS_DF >> 8), (3*8 + 1)(%rsp) ++ jz first_nmi /* RSP was user controlled. */ ++ ++ /* This is a nested NMI. */ ++ + CFI_REMEMBER_STATE + + nested_nmi: + /* +- * Do nothing if we interrupted the fixup in repeat_nmi. +- * It's about to repeat the NMI handler, so we are fine +- * with ignoring this one. ++ * Modify the "iret" frame to point to repeat_nmi, forcing another ++ * iteration of NMI handling. + */ +- movq $repeat_nmi, %rdx +- cmpq 8(%rsp), %rdx +- ja 1f +- movq $end_repeat_nmi, %rdx +- cmpq 8(%rsp), %rdx +- ja nested_nmi_out +- +-1: +- /* Set up the interrupted NMIs stack to jump to repeat_nmi */ + leaq -1*8(%rsp), %rdx + movq %rdx, %rsp + CFI_ADJUST_CFA_OFFSET 1*8 +@@ -1779,60 +1912,23 @@ nested_nmi_out: + popq_cfi %rdx + CFI_RESTORE rdx + +- /* No need to check faults here */ ++ /* We are returning to kernel mode, so this cannot result in a fault. */ + INTERRUPT_RETURN + + CFI_RESTORE_STATE + first_nmi: +- /* +- * Because nested NMIs will use the pushed location that we +- * stored in rdx, we must keep that space available. +- * Here's what our stack frame will look like: +- * +-------------------------+ +- * | original SS | +- * | original Return RSP | +- * | original RFLAGS | +- * | original CS | +- * | original RIP | +- * +-------------------------+ +- * | temp storage for rdx | +- * +-------------------------+ +- * | NMI executing variable | +- * +-------------------------+ +- * | copied SS | +- * | copied Return RSP | +- * | copied RFLAGS | +- * | copied CS | +- * | copied RIP | +- * +-------------------------+ +- * | Saved SS | +- * | Saved Return RSP | +- * | Saved RFLAGS | +- * | Saved CS | +- * | Saved RIP | +- * +-------------------------+ +- * | pt_regs | +- * +-------------------------+ +- * +- * The saved stack frame is used to fix up the copied stack frame +- * that a nested NMI may change to make the interrupted NMI iret jump +- * to the repeat_nmi. The original stack frame and the temp storage +- * is also used by nested NMIs and can not be trusted on exit. +- */ +- /* Do not pop rdx, nested NMIs will corrupt that part of the stack */ ++ /* Restore rdx. */ + movq (%rsp), %rdx + CFI_RESTORE rdx + +- /* Set the NMI executing variable on the stack. */ ++ /* Set "NMI executing" on the stack. */ + pushq_cfi $1 + +- /* +- * Leave room for the "copied" frame +- */ ++ /* Leave room for the "iret" frame */ + subq $(5*8), %rsp + CFI_ADJUST_CFA_OFFSET 5*8 + +- /* Copy the stack frame to the Saved frame */ ++ /* Copy the "original" frame to the "outermost" frame */ + .rept 5 + pushq_cfi 11*8(%rsp) + .endr +@@ -1840,6 +1936,7 @@ first_nmi: + + /* Everything up to here is safe from nested NMIs */ + ++repeat_nmi: + /* + * If there was a nested NMI, the first NMI's iret will return + * here. But NMIs are still enabled and we can take another +@@ -1848,16 +1945,21 @@ first_nmi: + * it will just return, as we are about to repeat an NMI anyway. + * This makes it safe to copy to the stack frame that a nested + * NMI will update. +- */ +-repeat_nmi: +- /* +- * Update the stack variable to say we are still in NMI (the update +- * is benign for the non-repeat case, where 1 was pushed just above +- * to this very stack slot). ++ * ++ * RSP is pointing to "outermost RIP". gsbase is unknown, but, if ++ * we're repeating an NMI, gsbase has the same value that it had on ++ * the first iteration. paranoid_entry will load the kernel ++ * gsbase if needed before we call do_nmi. ++ * ++ * Set "NMI executing" in case we came back here via IRET. + */ + movq $1, 10*8(%rsp) + +- /* Make another copy, this one may be modified by nested NMIs */ ++ /* ++ * Copy the "outermost" frame to the "iret" frame. NMIs that nest ++ * here must not modify the "iret" frame while we're writing to ++ * it or it will end up containing garbage. ++ */ + addq $(10*8), %rsp + CFI_ADJUST_CFA_OFFSET -10*8 + .rept 5 +@@ -1868,9 +1970,9 @@ repeat_nmi: + end_repeat_nmi: + + /* +- * Everything below this point can be preempted by a nested +- * NMI if the first NMI took an exception and reset our iret stack +- * so that we repeat another NMI. ++ * Everything below this point can be preempted by a nested NMI. ++ * If this happens, then the inner NMI will change the "iret" ++ * frame to point back to repeat_nmi. + */ + pushq_cfi $-1 /* ORIG_RAX: no syscall to restart */ + subq $ORIG_RAX-R15, %rsp +@@ -1885,28 +1987,10 @@ end_repeat_nmi: + call save_paranoid + DEFAULT_FRAME 0 + +- /* +- * Save off the CR2 register. If we take a page fault in the NMI then +- * it could corrupt the CR2 value. If the NMI preempts a page fault +- * handler before it was able to read the CR2 register, and then the +- * NMI itself takes a page fault, the page fault that was preempted +- * will read the information from the NMI page fault and not the +- * origin fault. Save it off and restore it if it changes. +- * Use the r12 callee-saved register. +- */ +- movq %cr2, %r12 +- + /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */ + movq %rsp,%rdi + movq $-1,%rsi + call do_nmi +- +- /* Did the NMI take a page fault? Restore cr2 if it did */ +- movq %cr2, %rcx +- cmpq %rcx, %r12 +- je 1f +- movq %r12, %cr2 +-1: + + testl %ebx,%ebx /* swapgs needed? */ + jnz nmi_restore +@@ -1916,9 +2000,23 @@ nmi_restore: + /* Pop the extra iret frame at once */ + RESTORE_ALL 6*8 + +- /* Clear the NMI executing stack variable */ +- movq $0, 5*8(%rsp) +- jmp irq_return ++ /* ++ * Clear "NMI executing". Set DF first so that we can easily ++ * distinguish the remaining code between here and IRET from ++ * the SYSCALL entry and exit paths. On a native kernel, we ++ * could just inspect RIP, but, on paravirt kernels, ++ * INTERRUPT_RETURN can translate into a jump into a ++ * hypercall page. ++ */ ++ std ++ movq $0, 5*8(%rsp) /* clear "NMI executing" */ ++ ++ /* ++ * INTERRUPT_RETURN reads the "iret" frame and exits the NMI ++ * stack in a single instruction. We are returning to kernel ++ * mode, so this cannot result in a fault. ++ */ ++ INTERRUPT_RETURN + CFI_ENDPROC + END(nmi) + +diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c +index 6fcb49ce50a1..8facfb318a97 100644 +--- a/arch/x86/kernel/nmi.c ++++ b/arch/x86/kernel/nmi.c +@@ -392,15 +392,15 @@ static __kprobes void default_do_nmi(struct pt_regs *regs) + } + + /* +- * NMIs can hit breakpoints which will cause it to lose its +- * NMI context with the CPU when the breakpoint does an iret. +- */ +-#ifdef CONFIG_X86_32 +-/* +- * For i386, NMIs use the same stack as the kernel, and we can +- * add a workaround to the iret problem in C (preventing nested +- * NMIs if an NMI takes a trap). Simply have 3 states the NMI +- * can be in: ++ * NMIs can page fault or hit breakpoints which will cause it to lose ++ * its NMI context with the CPU when the breakpoint or page fault does an IRET. ++ * ++ * As a result, NMIs can nest if NMIs get unmasked due an IRET during ++ * NMI processing. On x86_64, the asm glue protects us from nested NMIs ++ * if the outer NMI came from kernel mode, but we can still nest if the ++ * outer NMI came from user mode. ++ * ++ * To handle these nested NMIs, we have three states: + * + * 1) not running + * 2) executing +@@ -414,15 +414,14 @@ static __kprobes void default_do_nmi(struct pt_regs *regs) + * (Note, the latch is binary, thus multiple NMIs triggering, + * when one is running, are ignored. Only one NMI is restarted.) + * +- * If an NMI hits a breakpoint that executes an iret, another +- * NMI can preempt it. We do not want to allow this new NMI +- * to run, but we want to execute it when the first one finishes. +- * We set the state to "latched", and the exit of the first NMI will +- * perform a dec_return, if the result is zero (NOT_RUNNING), then +- * it will simply exit the NMI handler. If not, the dec_return +- * would have set the state to NMI_EXECUTING (what we want it to +- * be when we are running). In this case, we simply jump back +- * to rerun the NMI handler again, and restart the 'latched' NMI. ++ * If an NMI executes an iret, another NMI can preempt it. We do not ++ * want to allow this new NMI to run, but we want to execute it when the ++ * first one finishes. We set the state to "latched", and the exit of ++ * the first NMI will perform a dec_return, if the result is zero ++ * (NOT_RUNNING), then it will simply exit the NMI handler. If not, the ++ * dec_return would have set the state to NMI_EXECUTING (what we want it ++ * to be when we are running). In this case, we simply jump back to ++ * rerun the NMI handler again, and restart the 'latched' NMI. + * + * No trap (breakpoint or page fault) should be hit before nmi_restart, + * thus there is no race between the first check of state for NOT_RUNNING +@@ -445,49 +444,36 @@ enum nmi_states { + static DEFINE_PER_CPU(enum nmi_states, nmi_state); + static DEFINE_PER_CPU(unsigned long, nmi_cr2); + +-#define nmi_nesting_preprocess(regs) \ +- do { \ +- if (this_cpu_read(nmi_state) != NMI_NOT_RUNNING) { \ +- this_cpu_write(nmi_state, NMI_LATCHED); \ +- return; \ +- } \ +- this_cpu_write(nmi_state, NMI_EXECUTING); \ +- this_cpu_write(nmi_cr2, read_cr2()); \ +- } while (0); \ +- nmi_restart: +- +-#define nmi_nesting_postprocess() \ +- do { \ +- if (unlikely(this_cpu_read(nmi_cr2) != read_cr2())) \ +- write_cr2(this_cpu_read(nmi_cr2)); \ +- if (this_cpu_dec_return(nmi_state)) \ +- goto nmi_restart; \ +- } while (0) +-#else /* x86_64 */ ++#ifdef CONFIG_X86_64 + /* +- * In x86_64 things are a bit more difficult. This has the same problem +- * where an NMI hitting a breakpoint that calls iret will remove the +- * NMI context, allowing a nested NMI to enter. What makes this more +- * difficult is that both NMIs and breakpoints have their own stack. +- * When a new NMI or breakpoint is executed, the stack is set to a fixed +- * point. If an NMI is nested, it will have its stack set at that same +- * fixed address that the first NMI had, and will start corrupting the +- * stack. This is handled in entry_64.S, but the same problem exists with +- * the breakpoint stack. ++ * In x86_64, we need to handle breakpoint -> NMI -> breakpoint. Without ++ * some care, the inner breakpoint will clobber the outer breakpoint's ++ * stack. + * +- * If a breakpoint is being processed, and the debug stack is being used, +- * if an NMI comes in and also hits a breakpoint, the stack pointer +- * will be set to the same fixed address as the breakpoint that was +- * interrupted, causing that stack to be corrupted. To handle this case, +- * check if the stack that was interrupted is the debug stack, and if +- * so, change the IDT so that new breakpoints will use the current stack +- * and not switch to the fixed address. On return of the NMI, switch back +- * to the original IDT. ++ * If a breakpoint is being processed, and the debug stack is being ++ * used, if an NMI comes in and also hits a breakpoint, the stack ++ * pointer will be set to the same fixed address as the breakpoint that ++ * was interrupted, causing that stack to be corrupted. To handle this ++ * case, check if the stack that was interrupted is the debug stack, and ++ * if so, change the IDT so that new breakpoints will use the current ++ * stack and not switch to the fixed address. On return of the NMI, ++ * switch back to the original IDT. + */ + static DEFINE_PER_CPU(int, update_debug_stack); ++#endif + +-static inline void nmi_nesting_preprocess(struct pt_regs *regs) ++dotraplinkage notrace void ++do_nmi(struct pt_regs *regs, long error_code) + { ++ if (this_cpu_read(nmi_state) != NMI_NOT_RUNNING) { ++ this_cpu_write(nmi_state, NMI_LATCHED); ++ return; ++ } ++ this_cpu_write(nmi_state, NMI_EXECUTING); ++ this_cpu_write(nmi_cr2, read_cr2()); ++nmi_restart: ++ ++#ifdef CONFIG_X86_64 + /* + * If we interrupted a breakpoint, it is possible that + * the nmi handler will have breakpoints too. We need to +@@ -498,22 +484,8 @@ static inline void nmi_nesting_preprocess(struct pt_regs *regs) + debug_stack_set_zero(); + this_cpu_write(update_debug_stack, 1); + } +-} +- +-static inline void nmi_nesting_postprocess(void) +-{ +- if (unlikely(this_cpu_read(update_debug_stack))) { +- debug_stack_reset(); +- this_cpu_write(update_debug_stack, 0); +- } +-} + #endif + +-dotraplinkage notrace __kprobes void +-do_nmi(struct pt_regs *regs, long error_code) +-{ +- nmi_nesting_preprocess(regs); +- + nmi_enter(); + + inc_irq_stat(__nmi_count); +@@ -523,8 +495,17 @@ do_nmi(struct pt_regs *regs, long error_code) + + nmi_exit(); + +- /* On i386, may loop back to preprocess */ +- nmi_nesting_postprocess(); ++#ifdef CONFIG_X86_64 ++ if (unlikely(this_cpu_read(update_debug_stack))) { ++ debug_stack_reset(); ++ this_cpu_write(update_debug_stack, 0); ++ } ++#endif ++ ++ if (unlikely(this_cpu_read(nmi_cr2) != read_cr2())) ++ write_cr2(this_cpu_read(nmi_cr2)); ++ if (this_cpu_dec_return(nmi_state)) ++ goto nmi_restart; + } + + void stop_nmi(void) +diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c +index e39504878aec..a7b5b3071072 100644 +--- a/arch/x86/mm/init_32.c ++++ b/arch/x86/mm/init_32.c +@@ -137,6 +137,7 @@ page_table_range_init_count(unsigned long start, unsigned long end) + + vaddr = start; + pgd_idx = pgd_index(vaddr); ++ pmd_idx = pmd_index(vaddr); + + for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd_idx++) { + for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); +diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c +index b91ce75bd35d..d2102c4eefbf 100644 +--- a/block/blk-mq-sysfs.c ++++ b/block/blk-mq-sysfs.c +@@ -141,15 +141,26 @@ static ssize_t blk_mq_sysfs_completed_show(struct blk_mq_ctx *ctx, char *page) + + static ssize_t sysfs_list_show(char *page, struct list_head *list, char *msg) + { +- char *start_page = page; + struct request *rq; ++ int len = snprintf(page, PAGE_SIZE - 1, "%s:\n", msg); ++ ++ list_for_each_entry(rq, list, queuelist) { ++ const int rq_len = 2 * sizeof(rq) + 2; ++ ++ /* if the output will be truncated */ ++ if (PAGE_SIZE - 1 < len + rq_len) { ++ /* backspacing if it can't hold '\t...\n' */ ++ if (PAGE_SIZE - 1 < len + 5) ++ len -= rq_len; ++ len += snprintf(page + len, PAGE_SIZE - 1 - len, ++ "\t...\n"); ++ break; ++ } ++ len += snprintf(page + len, PAGE_SIZE - 1 - len, ++ "\t%p\n", rq); ++ } + +- page += sprintf(page, "%s:\n", msg); +- +- list_for_each_entry(rq, list, queuelist) +- page += sprintf(page, "\t%p\n", rq); +- +- return page - start_page; ++ return len; + } + + static ssize_t blk_mq_sysfs_rq_list_show(struct blk_mq_ctx *ctx, char *page) +diff --git a/drivers/base/node.c b/drivers/base/node.c +index bc9f43bf7e29..5f5160c9455f 100644 +--- a/drivers/base/node.c ++++ b/drivers/base/node.c +@@ -399,6 +399,16 @@ int register_mem_sect_under_node(struct memory_block *mem_blk, int nid) + for (pfn = sect_start_pfn; pfn <= sect_end_pfn; pfn++) { + int page_nid; + ++ /* ++ * memory block could have several absent sections from start. ++ * skip pfn range from absent section ++ */ ++ if (!pfn_present(pfn)) { ++ pfn = round_down(pfn + PAGES_PER_SECTION, ++ PAGES_PER_SECTION) - 1; ++ continue; ++ } ++ + page_nid = get_nid_for_pfn(pfn); + if (page_nid < 0) + continue; +diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c +index 51824d1f23ea..2d3385d3c6a9 100644 +--- a/drivers/block/nvme-core.c ++++ b/drivers/block/nvme-core.c +@@ -2464,6 +2464,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) + if (result) + goto release; + ++ kref_init(&dev->kref); + result = nvme_dev_start(dev); + if (result) { + if (result == -EBUSY) +@@ -2471,7 +2472,6 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) + goto release_pools; + } + +- kref_init(&dev->kref); + result = nvme_dev_add(dev); + if (result) + goto shutdown; +diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c +index 79a266934327..fd2820ff9e5b 100644 +--- a/drivers/gpu/drm/radeon/radeon_combios.c ++++ b/drivers/gpu/drm/radeon/radeon_combios.c +@@ -3387,6 +3387,14 @@ void radeon_combios_asic_init(struct drm_device *dev) + rdev->pdev->subsystem_device == 0x30ae) + return; + ++ /* quirk for rs4xx HP Compaq dc5750 Small Form Factor to make it resume ++ * - it hangs on resume inside the dynclk 1 table. ++ */ ++ if (rdev->family == CHIP_RS480 && ++ rdev->pdev->subsystem_vendor == 0x103c && ++ rdev->pdev->subsystem_device == 0x280a) ++ return; ++ + /* DYN CLK 1 */ + table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE); + if (table) +diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig +index 6f64c5cc5387..ac2d69e34c8c 100644 +--- a/drivers/iio/gyro/Kconfig ++++ b/drivers/iio/gyro/Kconfig +@@ -93,8 +93,7 @@ config IIO_ST_GYRO_SPI_3AXIS + config ITG3200 + tristate "InvenSense ITG3200 Digital 3-Axis Gyroscope I2C driver" + depends on I2C +- select IIO_BUFFER +- select IIO_TRIGGERED_BUFFER ++ select IIO_TRIGGERED_BUFFER if IIO_BUFFER + help + Say yes here to add support for the InvenSense ITG3200 digital + 3-axis gyroscope sensor. +diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h +index a283274a5a09..639557bdc0cd 100644 +--- a/drivers/infiniband/core/uverbs.h ++++ b/drivers/infiniband/core/uverbs.h +@@ -85,7 +85,7 @@ + */ + + struct ib_uverbs_device { +- struct kref ref; ++ atomic_t refcount; + int num_comp_vectors; + struct completion comp; + struct device *dev; +@@ -94,6 +94,7 @@ struct ib_uverbs_device { + struct cdev cdev; + struct rb_root xrcd_tree; + struct mutex xrcd_tree_mutex; ++ struct kobject kobj; + }; + + struct ib_uverbs_event_file { +diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c +index 2adc14372b94..5e66eab292d8 100644 +--- a/drivers/infiniband/core/uverbs_cmd.c ++++ b/drivers/infiniband/core/uverbs_cmd.c +@@ -2111,6 +2111,12 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, + next->send_flags = user_wr->send_flags; + + if (is_ud) { ++ if (next->opcode != IB_WR_SEND && ++ next->opcode != IB_WR_SEND_WITH_IMM) { ++ ret = -EINVAL; ++ goto out_put; ++ } ++ + next->wr.ud.ah = idr_read_ah(user_wr->wr.ud.ah, + file->ucontext); + if (!next->wr.ud.ah) { +@@ -2150,9 +2156,11 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, + user_wr->wr.atomic.compare_add; + next->wr.atomic.swap = user_wr->wr.atomic.swap; + next->wr.atomic.rkey = user_wr->wr.atomic.rkey; ++ case IB_WR_SEND: + break; + default: +- break; ++ ret = -EINVAL; ++ goto out_put; + } + } + +diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c +index 7a515c867674..8802d5ccd93d 100644 +--- a/drivers/infiniband/core/uverbs_main.c ++++ b/drivers/infiniband/core/uverbs_main.c +@@ -127,14 +127,18 @@ static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file, + static void ib_uverbs_add_one(struct ib_device *device); + static void ib_uverbs_remove_one(struct ib_device *device); + +-static void ib_uverbs_release_dev(struct kref *ref) ++static void ib_uverbs_release_dev(struct kobject *kobj) + { + struct ib_uverbs_device *dev = +- container_of(ref, struct ib_uverbs_device, ref); ++ container_of(kobj, struct ib_uverbs_device, kobj); + +- complete(&dev->comp); ++ kfree(dev); + } + ++static struct kobj_type ib_uverbs_dev_ktype = { ++ .release = ib_uverbs_release_dev, ++}; ++ + static void ib_uverbs_release_event_file(struct kref *ref) + { + struct ib_uverbs_event_file *file = +@@ -298,13 +302,19 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, + return context->device->dealloc_ucontext(context); + } + ++static void ib_uverbs_comp_dev(struct ib_uverbs_device *dev) ++{ ++ complete(&dev->comp); ++} ++ + static void ib_uverbs_release_file(struct kref *ref) + { + struct ib_uverbs_file *file = + container_of(ref, struct ib_uverbs_file, ref); + + module_put(file->device->ib_dev->owner); +- kref_put(&file->device->ref, ib_uverbs_release_dev); ++ if (atomic_dec_and_test(&file->device->refcount)) ++ ib_uverbs_comp_dev(file->device); + + kfree(file); + } +@@ -734,9 +744,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp) + int ret; + + dev = container_of(inode->i_cdev, struct ib_uverbs_device, cdev); +- if (dev) +- kref_get(&dev->ref); +- else ++ if (!atomic_inc_not_zero(&dev->refcount)) + return -ENXIO; + + if (!try_module_get(dev->ib_dev->owner)) { +@@ -757,6 +765,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp) + mutex_init(&file->mutex); + + filp->private_data = file; ++ kobject_get(&dev->kobj); + + return nonseekable_open(inode, filp); + +@@ -764,13 +773,16 @@ err_module: + module_put(dev->ib_dev->owner); + + err: +- kref_put(&dev->ref, ib_uverbs_release_dev); ++ if (atomic_dec_and_test(&dev->refcount)) ++ ib_uverbs_comp_dev(dev); ++ + return ret; + } + + static int ib_uverbs_close(struct inode *inode, struct file *filp) + { + struct ib_uverbs_file *file = filp->private_data; ++ struct ib_uverbs_device *dev = file->device; + + ib_uverbs_cleanup_ucontext(file, file->ucontext); + +@@ -778,6 +790,7 @@ static int ib_uverbs_close(struct inode *inode, struct file *filp) + kref_put(&file->async_file->ref, ib_uverbs_release_event_file); + + kref_put(&file->ref, ib_uverbs_release_file); ++ kobject_put(&dev->kobj); + + return 0; + } +@@ -873,10 +886,11 @@ static void ib_uverbs_add_one(struct ib_device *device) + if (!uverbs_dev) + return; + +- kref_init(&uverbs_dev->ref); ++ atomic_set(&uverbs_dev->refcount, 1); + init_completion(&uverbs_dev->comp); + uverbs_dev->xrcd_tree = RB_ROOT; + mutex_init(&uverbs_dev->xrcd_tree_mutex); ++ kobject_init(&uverbs_dev->kobj, &ib_uverbs_dev_ktype); + + spin_lock(&map_lock); + devnum = find_first_zero_bit(dev_map, IB_UVERBS_MAX_DEVICES); +@@ -903,6 +917,7 @@ static void ib_uverbs_add_one(struct ib_device *device) + cdev_init(&uverbs_dev->cdev, NULL); + uverbs_dev->cdev.owner = THIS_MODULE; + uverbs_dev->cdev.ops = device->mmap ? &uverbs_mmap_fops : &uverbs_fops; ++ uverbs_dev->cdev.kobj.parent = &uverbs_dev->kobj; + kobject_set_name(&uverbs_dev->cdev.kobj, "uverbs%d", uverbs_dev->devnum); + if (cdev_add(&uverbs_dev->cdev, base, 1)) + goto err_cdev; +@@ -933,9 +948,10 @@ err_cdev: + clear_bit(devnum, overflow_map); + + err: +- kref_put(&uverbs_dev->ref, ib_uverbs_release_dev); ++ if (atomic_dec_and_test(&uverbs_dev->refcount)) ++ ib_uverbs_comp_dev(uverbs_dev); + wait_for_completion(&uverbs_dev->comp); +- kfree(uverbs_dev); ++ kobject_put(&uverbs_dev->kobj); + return; + } + +@@ -955,9 +971,10 @@ static void ib_uverbs_remove_one(struct ib_device *device) + else + clear_bit(uverbs_dev->devnum - IB_UVERBS_MAX_DEVICES, overflow_map); + +- kref_put(&uverbs_dev->ref, ib_uverbs_release_dev); ++ if (atomic_dec_and_test(&uverbs_dev->refcount)) ++ ib_uverbs_comp_dev(uverbs_dev); + wait_for_completion(&uverbs_dev->comp); +- kfree(uverbs_dev); ++ kobject_put(&uverbs_dev->kobj); + } + + static char *uverbs_devnode(struct device *dev, umode_t *mode) +diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c +index 170dca608042..1ddcebd84622 100644 +--- a/drivers/infiniband/hw/mlx4/ah.c ++++ b/drivers/infiniband/hw/mlx4/ah.c +@@ -147,9 +147,13 @@ int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr) + enum rdma_link_layer ll; + + memset(ah_attr, 0, sizeof *ah_attr); +- ah_attr->sl = be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28; + ah_attr->port_num = be32_to_cpu(ah->av.ib.port_pd) >> 24; + ll = rdma_port_get_link_layer(ibah->device, ah_attr->port_num); ++ if (ll == IB_LINK_LAYER_ETHERNET) ++ ah_attr->sl = be32_to_cpu(ah->av.eth.sl_tclass_flowlabel) >> 29; ++ else ++ ah_attr->sl = be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28; ++ + ah_attr->dlid = ll == IB_LINK_LAYER_INFINIBAND ? be16_to_cpu(ah->av.ib.dlid) : 0; + if (ah->av.ib.stat_rate) + ah_attr->static_rate = ah->av.ib.stat_rate - MLX4_STAT_RATE_OFFSET; +diff --git a/drivers/infiniband/hw/mlx4/sysfs.c b/drivers/infiniband/hw/mlx4/sysfs.c +index db2ea31df832..b5e50c605933 100644 +--- a/drivers/infiniband/hw/mlx4/sysfs.c ++++ b/drivers/infiniband/hw/mlx4/sysfs.c +@@ -563,6 +563,8 @@ static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave) + struct mlx4_port *p; + int i; + int ret; ++ int is_eth = rdma_port_get_link_layer(&dev->ib_dev, port_num) == ++ IB_LINK_LAYER_ETHERNET; + + p = kzalloc(sizeof *p, GFP_KERNEL); + if (!p) +@@ -580,7 +582,8 @@ static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave) + + p->pkey_group.name = "pkey_idx"; + p->pkey_group.attrs = +- alloc_group_attrs(show_port_pkey, store_port_pkey, ++ alloc_group_attrs(show_port_pkey, ++ is_eth ? NULL : store_port_pkey, + dev->dev->caps.pkey_table_len[port_num]); + if (!p->pkey_group.attrs) { + ret = -ENOMEM; +diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c +index 3b9afccaaade..eabe54738be6 100644 +--- a/drivers/infiniband/hw/qib/qib_keys.c ++++ b/drivers/infiniband/hw/qib/qib_keys.c +@@ -86,6 +86,10 @@ int qib_alloc_lkey(struct qib_mregion *mr, int dma_region) + * unrestricted LKEY. + */ + rkt->gen++; ++ /* ++ * bits are capped in qib_verbs.c to insure enough bits ++ * for generation number ++ */ + mr->lkey = (r << (32 - ib_qib_lkey_table_size)) | + ((((1 << (24 - ib_qib_lkey_table_size)) - 1) & rkt->gen) + << 8); +diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c +index 092b0bb1bb78..c141b9b2493d 100644 +--- a/drivers/infiniband/hw/qib/qib_verbs.c ++++ b/drivers/infiniband/hw/qib/qib_verbs.c +@@ -40,6 +40,7 @@ + #include <linux/rculist.h> + #include <linux/mm.h> + #include <linux/random.h> ++#include <linux/vmalloc.h> + + #include "qib.h" + #include "qib_common.h" +@@ -2086,10 +2087,16 @@ int qib_register_ib_device(struct qib_devdata *dd) + * the LKEY). The remaining bits act as a generation number or tag. + */ + spin_lock_init(&dev->lk_table.lock); ++ /* insure generation is at least 4 bits see keys.c */ ++ if (ib_qib_lkey_table_size > MAX_LKEY_TABLE_BITS) { ++ qib_dev_warn(dd, "lkey bits %u too large, reduced to %u\n", ++ ib_qib_lkey_table_size, MAX_LKEY_TABLE_BITS); ++ ib_qib_lkey_table_size = MAX_LKEY_TABLE_BITS; ++ } + dev->lk_table.max = 1 << ib_qib_lkey_table_size; + lk_tab_size = dev->lk_table.max * sizeof(*dev->lk_table.table); + dev->lk_table.table = (struct qib_mregion __rcu **) +- __get_free_pages(GFP_KERNEL, get_order(lk_tab_size)); ++ vmalloc(lk_tab_size); + if (dev->lk_table.table == NULL) { + ret = -ENOMEM; + goto err_lk; +@@ -2262,7 +2269,7 @@ err_tx: + sizeof(struct qib_pio_header), + dev->pio_hdrs, dev->pio_hdrs_phys); + err_hdrs: +- free_pages((unsigned long) dev->lk_table.table, get_order(lk_tab_size)); ++ vfree(dev->lk_table.table); + err_lk: + kfree(dev->qp_table); + err_qpt: +@@ -2316,8 +2323,7 @@ void qib_unregister_ib_device(struct qib_devdata *dd) + sizeof(struct qib_pio_header), + dev->pio_hdrs, dev->pio_hdrs_phys); + lk_tab_size = dev->lk_table.max * sizeof(*dev->lk_table.table); +- free_pages((unsigned long) dev->lk_table.table, +- get_order(lk_tab_size)); ++ vfree(dev->lk_table.table); + kfree(dev->qp_table); + } + +diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h +index a01c7d2cf541..d34bc69f1f17 100644 +--- a/drivers/infiniband/hw/qib/qib_verbs.h ++++ b/drivers/infiniband/hw/qib/qib_verbs.h +@@ -647,6 +647,8 @@ struct qib_qpn_table { + struct qpn_map map[QPNMAP_ENTRIES]; + }; + ++#define MAX_LKEY_TABLE_BITS 23 ++ + struct qib_lkey_table { + spinlock_t lock; /* protect changes in this struct */ + u32 next; /* next unused index (speeds search) */ +diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c +index fb787c3e88d9..bb9f073a4e13 100644 +--- a/drivers/input/evdev.c ++++ b/drivers/input/evdev.c +@@ -240,19 +240,14 @@ static int evdev_flush(struct file *file, fl_owner_t id) + { + struct evdev_client *client = file->private_data; + struct evdev *evdev = client->evdev; +- int retval; + +- retval = mutex_lock_interruptible(&evdev->mutex); +- if (retval) +- return retval; ++ mutex_lock(&evdev->mutex); + +- if (!evdev->exist || client->revoked) +- retval = -ENODEV; +- else +- retval = input_flush_device(&evdev->handle, file); ++ if (evdev->exist && !client->revoked) ++ input_flush_device(&evdev->handle, file); + + mutex_unlock(&evdev->mutex); +- return retval; ++ return 0; + } + + static void evdev_free(struct device *dev) +diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c +index 8c91fd5eb6fd..3ac9c4194814 100644 +--- a/drivers/isdn/gigaset/ser-gigaset.c ++++ b/drivers/isdn/gigaset/ser-gigaset.c +@@ -524,9 +524,18 @@ gigaset_tty_open(struct tty_struct *tty) + cs->hw.ser->tty = tty; + atomic_set(&cs->hw.ser->refcnt, 1); + init_completion(&cs->hw.ser->dead_cmp); +- + tty->disc_data = cs; + ++ /* Set the amount of data we're willing to receive per call ++ * from the hardware driver to half of the input buffer size ++ * to leave some reserve. ++ * Note: We don't do flow control towards the hardware driver. ++ * If more data is received than will fit into the input buffer, ++ * it will be dropped and an error will be logged. This should ++ * never happen as the device is slow and the buffer size ample. ++ */ ++ tty->receive_room = RBUFSIZE/2; ++ + /* OK.. Initialization of the datastructures and the HW is done.. Now + * startup system and notify the LL that we are ready to run + */ +diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c +index a46124ecafc7..73c9f579b042 100644 +--- a/drivers/md/raid10.c ++++ b/drivers/md/raid10.c +@@ -3585,6 +3585,7 @@ static struct r10conf *setup_conf(struct mddev *mddev) + /* far_copies must be 1 */ + conf->prev.stride = conf->dev_sectors; + } ++ conf->reshape_safe = conf->reshape_progress; + spin_lock_init(&conf->device_lock); + INIT_LIST_HEAD(&conf->retry_list); + +@@ -3793,7 +3794,6 @@ static int run(struct mddev *mddev) + } + conf->offset_diff = min_offset_diff; + +- conf->reshape_safe = conf->reshape_progress; + clear_bit(MD_RECOVERY_SYNC, &mddev->recovery); + clear_bit(MD_RECOVERY_CHECK, &mddev->recovery); + set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery); +@@ -4138,6 +4138,7 @@ static int raid10_start_reshape(struct mddev *mddev) + conf->reshape_progress = size; + } else + conf->reshape_progress = 0; ++ conf->reshape_safe = conf->reshape_progress; + spin_unlock_irq(&conf->device_lock); + + if (mddev->delta_disks && mddev->bitmap) { +@@ -4204,6 +4205,7 @@ abort: + rdev->new_data_offset = rdev->data_offset; + smp_wmb(); + conf->reshape_progress = MaxSector; ++ conf->reshape_safe = MaxSector; + mddev->reshape_position = MaxSector; + spin_unlock_irq(&conf->device_lock); + return ret; +@@ -4556,6 +4558,7 @@ static void end_reshape(struct r10conf *conf) + md_finish_reshape(conf->mddev); + smp_wmb(); + conf->reshape_progress = MaxSector; ++ conf->reshape_safe = MaxSector; + spin_unlock_irq(&conf->device_lock); + + /* read-ahead size must cover two whole stripes, which is +diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c +index 5807185262fe..ee0015be1421 100644 +--- a/drivers/media/platform/omap3isp/isp.c ++++ b/drivers/media/platform/omap3isp/isp.c +@@ -824,14 +824,14 @@ static int isp_pipeline_link_notify(struct media_link *link, u32 flags, + int ret; + + if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && +- !(link->flags & MEDIA_LNK_FL_ENABLED)) { ++ !(flags & MEDIA_LNK_FL_ENABLED)) { + /* Powering off entities is assumed to never fail. */ + isp_pipeline_pm_power(source, -sink_use); + isp_pipeline_pm_power(sink, -source_use); + return 0; + } + +- if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && ++ if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH && + (flags & MEDIA_LNK_FL_ENABLED)) { + + ret = isp_pipeline_pm_power(source, sink_use); +diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c +index 02e2f38c9c85..bdd3609c7641 100644 +--- a/drivers/media/rc/rc-main.c ++++ b/drivers/media/rc/rc-main.c +@@ -982,9 +982,6 @@ static int rc_dev_uevent(struct device *device, struct kobj_uevent_env *env) + { + struct rc_dev *dev = to_rc_dev(device); + +- if (!dev || !dev->input_dev) +- return -ENODEV; +- + if (dev->rc_map.name) + ADD_HOTPLUG_VAR("NAME=%s", dev->rc_map.name); + if (dev->driver_name) +diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c +index 6a881ebe5b02..4a50b5049c51 100644 +--- a/drivers/mmc/core/core.c ++++ b/drivers/mmc/core/core.c +@@ -329,8 +329,10 @@ EXPORT_SYMBOL(mmc_start_bkops); + */ + static void mmc_wait_data_done(struct mmc_request *mrq) + { +- mrq->host->context_info.is_done_rcv = true; +- wake_up_interruptible(&mrq->host->context_info.wait); ++ struct mmc_context_info *context_info = &mrq->host->context_info; ++ ++ context_info->is_done_rcv = true; ++ wake_up_interruptible(&context_info->wait); + } + + static void mmc_wait_done(struct mmc_request *mrq) +diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c +index 32b0e7055b1e..0697d8f5f3cf 100644 +--- a/drivers/net/bonding/bond_main.c ++++ b/drivers/net/bonding/bond_main.c +@@ -636,6 +636,23 @@ static void bond_set_dev_addr(struct net_device *bond_dev, + call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev); + } + ++static struct slave *bond_get_old_active(struct bonding *bond, ++ struct slave *new_active) ++{ ++ struct slave *slave; ++ struct list_head *iter; ++ ++ bond_for_each_slave(bond, slave, iter) { ++ if (slave == new_active) ++ continue; ++ ++ if (ether_addr_equal(bond->dev->dev_addr, slave->dev->dev_addr)) ++ return slave; ++ } ++ ++ return NULL; ++} ++ + /* + * bond_do_fail_over_mac + * +@@ -672,6 +689,9 @@ static void bond_do_fail_over_mac(struct bonding *bond, + + write_unlock_bh(&bond->curr_slave_lock); + ++ if (!old_active) ++ old_active = bond_get_old_active(bond, new_active); ++ + if (old_active) { + memcpy(tmp_mac, new_active->dev->dev_addr, ETH_ALEN); + memcpy(saddr.sa_data, old_active->dev->dev_addr, +@@ -1825,6 +1845,7 @@ static int bond_release_and_destroy(struct net_device *bond_dev, + bond_dev->priv_flags |= IFF_DISABLE_NETPOLL; + pr_info("%s: destroying bond %s.\n", + bond_dev->name, bond_dev->name); ++ bond_remove_proc_entry(bond); + unregister_netdevice(bond_dev); + } + return ret; +diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c +index bc65dc85a622..91e7286ab1e1 100644 +--- a/drivers/net/ethernet/broadcom/tg3.c ++++ b/drivers/net/ethernet/broadcom/tg3.c +@@ -10737,7 +10737,7 @@ static ssize_t tg3_show_temp(struct device *dev, + tg3_ape_scratchpad_read(tp, &temperature, attr->index, + sizeof(temperature)); + spin_unlock_bh(&tp->lock); +- return sprintf(buf, "%u\n", temperature); ++ return sprintf(buf, "%u\n", temperature * 1000); + } + + +diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c +index 669eeb4eb247..f051783f5882 100644 +--- a/drivers/net/ethernet/brocade/bna/bnad.c ++++ b/drivers/net/ethernet/brocade/bna/bnad.c +@@ -674,6 +674,7 @@ bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget) + if (!next_cmpl->valid) + break; + } ++ packets++; + + /* TODO: BNA_CQ_EF_LOCAL ? */ + if (unlikely(flags & (BNA_CQ_EF_MAC_ERROR | +@@ -690,7 +691,6 @@ bnad_cq_process(struct bnad *bnad, struct bna_ccb *ccb, int budget) + else + bnad_cq_setup_skb_frags(rcb, skb, sop_ci, nvecs, len); + +- packets++; + rcb->rxq->rx_packets++; + rcb->rxq->rx_bytes += totlen; + ccb->bytes_per_intr += totlen; +diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c +index 8992b38578d5..e8a1baa87c95 100644 +--- a/drivers/net/ethernet/mellanox/mlx4/eq.c ++++ b/drivers/net/ethernet/mellanox/mlx4/eq.c +@@ -557,7 +557,7 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq) + mlx4_dbg(dev, "%s: Sending MLX4_PORT_CHANGE_SUBTYPE_DOWN" + " to slave: %d, port:%d\n", + __func__, i, port); +- s_info = &priv->mfunc.master.vf_oper[slave].vport[port].state; ++ s_info = &priv->mfunc.master.vf_oper[i].vport[port].state; + if (IFLA_VF_LINK_STATE_AUTO == s_info->link_state) + mlx4_slave_event(dev, i, eqe); + } else { /* IB port */ +@@ -583,7 +583,7 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq) + for (i = 0; i < dev->num_slaves; i++) { + if (i == mlx4_master_func_num(dev)) + continue; +- s_info = &priv->mfunc.master.vf_oper[slave].vport[port].state; ++ s_info = &priv->mfunc.master.vf_oper[i].vport[port].state; + if (IFLA_VF_LINK_STATE_AUTO == s_info->link_state) + mlx4_slave_event(dev, i, eqe); + } +diff --git a/drivers/net/ethernet/stmicro/stmmac/descs.h b/drivers/net/ethernet/stmicro/stmmac/descs.h +index ad3996038018..799c2929c536 100644 +--- a/drivers/net/ethernet/stmicro/stmmac/descs.h ++++ b/drivers/net/ethernet/stmicro/stmmac/descs.h +@@ -158,6 +158,8 @@ struct dma_desc { + u32 buffer2_size:13; + u32 reserved4:3; + } etx; /* -- enhanced -- */ ++ ++ u64 all_flags; + } des01; + unsigned int des2; + unsigned int des3; +diff --git a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c +index 7e6628a91514..59fb7f69841b 100644 +--- a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c ++++ b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c +@@ -240,6 +240,7 @@ static int enh_desc_get_rx_status(void *data, struct stmmac_extra_stats *x, + static void enh_desc_init_rx_desc(struct dma_desc *p, int disable_rx_ic, + int mode, int end) + { ++ p->des01.all_flags = 0; + p->des01.erx.own = 1; + p->des01.erx.buffer1_size = BUF_SIZE_8KiB - 1; + +@@ -254,7 +255,7 @@ static void enh_desc_init_rx_desc(struct dma_desc *p, int disable_rx_ic, + + static void enh_desc_init_tx_desc(struct dma_desc *p, int mode, int end) + { +- p->des01.etx.own = 0; ++ p->des01.all_flags = 0; + if (mode == STMMAC_CHAIN_MODE) + ehn_desc_tx_set_on_chain(p, end); + else +diff --git a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c +index 35ad4f427ae2..48c3456445b2 100644 +--- a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c ++++ b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c +@@ -123,6 +123,7 @@ static int ndesc_get_rx_status(void *data, struct stmmac_extra_stats *x, + static void ndesc_init_rx_desc(struct dma_desc *p, int disable_rx_ic, int mode, + int end) + { ++ p->des01.all_flags = 0; + p->des01.rx.own = 1; + p->des01.rx.buffer1_size = BUF_SIZE_2KiB - 1; + +@@ -137,7 +138,7 @@ static void ndesc_init_rx_desc(struct dma_desc *p, int disable_rx_ic, int mode, + + static void ndesc_init_tx_desc(struct dma_desc *p, int mode, int end) + { +- p->des01.tx.own = 0; ++ p->des01.all_flags = 0; + if (mode == STMMAC_CHAIN_MODE) + ndesc_tx_set_on_chain(p, end); + else +diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +index 8543e1cfd55e..582e0b3cf5ba 100644 +--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c ++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +@@ -1142,41 +1142,41 @@ static int alloc_dma_desc_resources(struct stmmac_priv *priv) + goto err_tx_skbuff; + + if (priv->extend_desc) { +- priv->dma_erx = dma_alloc_coherent(priv->device, rxsize * +- sizeof(struct +- dma_extended_desc), +- &priv->dma_rx_phy, +- GFP_KERNEL); ++ priv->dma_erx = dma_zalloc_coherent(priv->device, rxsize * ++ sizeof(struct ++ dma_extended_desc), ++ &priv->dma_rx_phy, ++ GFP_KERNEL); + if (!priv->dma_erx) + goto err_dma; + +- priv->dma_etx = dma_alloc_coherent(priv->device, txsize * +- sizeof(struct +- dma_extended_desc), +- &priv->dma_tx_phy, +- GFP_KERNEL); ++ priv->dma_etx = dma_zalloc_coherent(priv->device, txsize * ++ sizeof(struct ++ dma_extended_desc), ++ &priv->dma_tx_phy, ++ GFP_KERNEL); + if (!priv->dma_etx) { + dma_free_coherent(priv->device, priv->dma_rx_size * +- sizeof(struct dma_extended_desc), +- priv->dma_erx, priv->dma_rx_phy); ++ sizeof(struct dma_extended_desc), ++ priv->dma_erx, priv->dma_rx_phy); + goto err_dma; + } + } else { +- priv->dma_rx = dma_alloc_coherent(priv->device, rxsize * +- sizeof(struct dma_desc), +- &priv->dma_rx_phy, +- GFP_KERNEL); ++ priv->dma_rx = dma_zalloc_coherent(priv->device, rxsize * ++ sizeof(struct dma_desc), ++ &priv->dma_rx_phy, ++ GFP_KERNEL); + if (!priv->dma_rx) + goto err_dma; + +- priv->dma_tx = dma_alloc_coherent(priv->device, txsize * +- sizeof(struct dma_desc), +- &priv->dma_tx_phy, +- GFP_KERNEL); ++ priv->dma_tx = dma_zalloc_coherent(priv->device, txsize * ++ sizeof(struct dma_desc), ++ &priv->dma_tx_phy, ++ GFP_KERNEL); + if (!priv->dma_tx) { + dma_free_coherent(priv->device, priv->dma_rx_size * +- sizeof(struct dma_desc), +- priv->dma_rx, priv->dma_rx_phy); ++ sizeof(struct dma_desc), ++ priv->dma_rx, priv->dma_rx_phy); + goto err_dma; + } + } +diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c +index f9e96c427558..23dc1316c1c2 100644 +--- a/drivers/net/usb/usbnet.c ++++ b/drivers/net/usb/usbnet.c +@@ -778,7 +778,7 @@ int usbnet_stop (struct net_device *net) + { + struct usbnet *dev = netdev_priv(net); + struct driver_info *info = dev->driver_info; +- int retval, pm; ++ int retval, pm, mpn; + + clear_bit(EVENT_DEV_OPEN, &dev->flags); + netif_stop_queue (net); +@@ -809,6 +809,8 @@ int usbnet_stop (struct net_device *net) + + usbnet_purge_paused_rxq(dev); + ++ mpn = !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags); ++ + /* deferred work (task, timer, softirq) must also stop. + * can't flush_scheduled_work() until we drop rtnl (later), + * else workers could deadlock; so make workers a NOP. +@@ -819,8 +821,7 @@ int usbnet_stop (struct net_device *net) + if (!pm) + usb_autopm_put_interface(dev->intf); + +- if (info->manage_power && +- !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags)) ++ if (info->manage_power && mpn) + info->manage_power(dev, 0); + else + usb_autopm_put_interface(dev->intf); +diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +index 66c92a16da29..a35d1dedeffb 100644 +--- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c ++++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +@@ -314,6 +314,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = { + {RTL_USB_DEVICE(0x07b8, 0x8188, rtl92cu_hal_cfg)}, /*Abocom - Abocom*/ + {RTL_USB_DEVICE(0x07b8, 0x8189, rtl92cu_hal_cfg)}, /*Funai - Abocom*/ + {RTL_USB_DEVICE(0x0846, 0x9041, rtl92cu_hal_cfg)}, /*NetGear WNA1000M*/ ++ {RTL_USB_DEVICE(0x0846, 0x9043, rtl92cu_hal_cfg)}, /*NG WNA1000Mv2*/ + {RTL_USB_DEVICE(0x0b05, 0x17ba, rtl92cu_hal_cfg)}, /*ASUS-Edimax*/ + {RTL_USB_DEVICE(0x0bda, 0x5088, rtl92cu_hal_cfg)}, /*Thinkware-CC&C*/ + {RTL_USB_DEVICE(0x0df6, 0x0052, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/ +diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c +index ff3c98f1ea95..91cc44611062 100644 +--- a/drivers/xen/gntdev.c ++++ b/drivers/xen/gntdev.c +@@ -67,7 +67,7 @@ struct gntdev_priv { + * Only populated if populate_freeable_maps == 1 */ + struct list_head freeable_maps; + /* lock protects maps and freeable_maps */ +- spinlock_t lock; ++ struct mutex lock; + struct mm_struct *mm; + struct mmu_notifier mn; + }; +@@ -216,9 +216,9 @@ static void gntdev_put_map(struct gntdev_priv *priv, struct grant_map *map) + } + + if (populate_freeable_maps && priv) { +- spin_lock(&priv->lock); ++ mutex_lock(&priv->lock); + list_del(&map->next); +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + } + + if (map->pages && !use_ptemod) +@@ -387,9 +387,9 @@ static void gntdev_vma_close(struct vm_area_struct *vma) + * not do any unmapping, since that has been done prior to + * closing the vma, but it may still iterate the unmap_ops list. + */ +- spin_lock(&priv->lock); ++ mutex_lock(&priv->lock); + map->vma = NULL; +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + } + vma->vm_private_data = NULL; + gntdev_put_map(priv, map); +@@ -433,14 +433,14 @@ static void mn_invl_range_start(struct mmu_notifier *mn, + struct gntdev_priv *priv = container_of(mn, struct gntdev_priv, mn); + struct grant_map *map; + +- spin_lock(&priv->lock); ++ mutex_lock(&priv->lock); + list_for_each_entry(map, &priv->maps, next) { + unmap_if_in_range(map, start, end); + } + list_for_each_entry(map, &priv->freeable_maps, next) { + unmap_if_in_range(map, start, end); + } +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + } + + static void mn_invl_page(struct mmu_notifier *mn, +@@ -457,7 +457,7 @@ static void mn_release(struct mmu_notifier *mn, + struct grant_map *map; + int err; + +- spin_lock(&priv->lock); ++ mutex_lock(&priv->lock); + list_for_each_entry(map, &priv->maps, next) { + if (!map->vma) + continue; +@@ -476,7 +476,7 @@ static void mn_release(struct mmu_notifier *mn, + err = unmap_grant_pages(map, /* offset */ 0, map->count); + WARN_ON(err); + } +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + } + + static struct mmu_notifier_ops gntdev_mmu_ops = { +@@ -498,7 +498,7 @@ static int gntdev_open(struct inode *inode, struct file *flip) + + INIT_LIST_HEAD(&priv->maps); + INIT_LIST_HEAD(&priv->freeable_maps); +- spin_lock_init(&priv->lock); ++ mutex_init(&priv->lock); + + if (use_ptemod) { + priv->mm = get_task_mm(current); +@@ -574,10 +574,10 @@ static long gntdev_ioctl_map_grant_ref(struct gntdev_priv *priv, + return -EFAULT; + } + +- spin_lock(&priv->lock); ++ mutex_lock(&priv->lock); + gntdev_add_map(priv, map); + op.index = map->index << PAGE_SHIFT; +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + + if (copy_to_user(u, &op, sizeof(op)) != 0) + return -EFAULT; +@@ -596,7 +596,7 @@ static long gntdev_ioctl_unmap_grant_ref(struct gntdev_priv *priv, + return -EFAULT; + pr_debug("priv %p, del %d+%d\n", priv, (int)op.index, (int)op.count); + +- spin_lock(&priv->lock); ++ mutex_lock(&priv->lock); + map = gntdev_find_map_index(priv, op.index >> PAGE_SHIFT, op.count); + if (map) { + list_del(&map->next); +@@ -604,7 +604,7 @@ static long gntdev_ioctl_unmap_grant_ref(struct gntdev_priv *priv, + list_add_tail(&map->next, &priv->freeable_maps); + err = 0; + } +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + if (map) + gntdev_put_map(priv, map); + return err; +@@ -672,7 +672,7 @@ static long gntdev_ioctl_notify(struct gntdev_priv *priv, void __user *u) + out_flags = op.action; + out_event = op.event_channel_port; + +- spin_lock(&priv->lock); ++ mutex_lock(&priv->lock); + + list_for_each_entry(map, &priv->maps, next) { + uint64_t begin = map->index << PAGE_SHIFT; +@@ -700,7 +700,7 @@ static long gntdev_ioctl_notify(struct gntdev_priv *priv, void __user *u) + rc = 0; + + unlock_out: +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + + /* Drop the reference to the event channel we did not save in the map */ + if (out_flags & UNMAP_NOTIFY_SEND_EVENT) +@@ -750,7 +750,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) + pr_debug("map %d+%d at %lx (pgoff %lx)\n", + index, count, vma->vm_start, vma->vm_pgoff); + +- spin_lock(&priv->lock); ++ mutex_lock(&priv->lock); + map = gntdev_find_map_index(priv, index, count); + if (!map) + goto unlock_out; +@@ -785,7 +785,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) + map->flags |= GNTMAP_readonly; + } + +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + + if (use_ptemod) { + err = apply_to_page_range(vma->vm_mm, vma->vm_start, +@@ -813,11 +813,11 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) + return 0; + + unlock_out: +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + return err; + + out_unlock_put: +- spin_unlock(&priv->lock); ++ mutex_unlock(&priv->lock); + out_put_map: + if (use_ptemod) + map->vma = NULL; +diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c +index a0b65a01fed7..86f86823a5f4 100644 +--- a/fs/btrfs/transaction.c ++++ b/fs/btrfs/transaction.c +@@ -1710,8 +1710,11 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, + spin_unlock(&root->fs_info->trans_lock); + + wait_for_commit(root, prev_trans); ++ ret = prev_trans->aborted; + + btrfs_put_transaction(prev_trans); ++ if (ret) ++ goto cleanup_transaction; + } else { + spin_unlock(&root->fs_info->trans_lock); + } +diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c +index dfc95646b88c..31df9bceedca 100644 +--- a/fs/cifs/ioctl.c ++++ b/fs/cifs/ioctl.c +@@ -67,6 +67,12 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file, + goto out_drop_write; + } + ++ if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) { ++ rc = -EBADF; ++ cifs_dbg(VFS, "src file seems to be from a different filesystem type\n"); ++ goto out_fput; ++ } ++ + if ((!src_file.file->private_data) || (!dst_file->private_data)) { + rc = -EBADF; + cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n"); +diff --git a/fs/coredump.c b/fs/coredump.c +index a93f7e6ea4cf..72f97a56966f 100644 +--- a/fs/coredump.c ++++ b/fs/coredump.c +@@ -498,10 +498,10 @@ void do_coredump(const siginfo_t *siginfo) + const struct cred *old_cred; + struct cred *cred; + int retval = 0; +- int flag = 0; + int ispipe; + struct files_struct *displaced; +- bool need_nonrelative = false; ++ /* require nonrelative corefile path and be extra careful */ ++ bool need_suid_safe = false; + bool core_dumped = false; + static atomic_t core_dump_count = ATOMIC_INIT(0); + struct coredump_params cprm = { +@@ -535,9 +535,8 @@ void do_coredump(const siginfo_t *siginfo) + */ + if (__get_dumpable(cprm.mm_flags) == SUID_DUMP_ROOT) { + /* Setuid core dump mode */ +- flag = O_EXCL; /* Stop rewrite attacks */ + cred->fsuid = GLOBAL_ROOT_UID; /* Dump root private */ +- need_nonrelative = true; ++ need_suid_safe = true; + } + + retval = coredump_wait(siginfo->si_signo, &core_state); +@@ -618,7 +617,7 @@ void do_coredump(const siginfo_t *siginfo) + if (cprm.limit < binfmt->min_coredump) + goto fail_unlock; + +- if (need_nonrelative && cn.corename[0] != '/') { ++ if (need_suid_safe && cn.corename[0] != '/') { + printk(KERN_WARNING "Pid %d(%s) can only dump core "\ + "to fully qualified path!\n", + task_tgid_vnr(current), current->comm); +@@ -626,8 +625,35 @@ void do_coredump(const siginfo_t *siginfo) + goto fail_unlock; + } + ++ /* ++ * Unlink the file if it exists unless this is a SUID ++ * binary - in that case, we're running around with root ++ * privs and don't want to unlink another user's coredump. ++ */ ++ if (!need_suid_safe) { ++ mm_segment_t old_fs; ++ ++ old_fs = get_fs(); ++ set_fs(KERNEL_DS); ++ /* ++ * If it doesn't exist, that's fine. If there's some ++ * other problem, we'll catch it at the filp_open(). ++ */ ++ (void) sys_unlink((const char __user *)cn.corename); ++ set_fs(old_fs); ++ } ++ ++ /* ++ * There is a race between unlinking and creating the ++ * file, but if that causes an EEXIST here, that's ++ * fine - another process raced with us while creating ++ * the corefile, and the other process won. To userspace, ++ * what matters is that at least one of the two processes ++ * writes its coredump successfully, not which one. ++ */ + cprm.file = filp_open(cn.corename, +- O_CREAT | 2 | O_NOFOLLOW | O_LARGEFILE | flag, ++ O_CREAT | 2 | O_NOFOLLOW | ++ O_LARGEFILE | O_EXCL, + 0600); + if (IS_ERR(cprm.file)) + goto fail_unlock; +diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c +index d3fa6bd9503e..221719eac5de 100644 +--- a/fs/hfs/bnode.c ++++ b/fs/hfs/bnode.c +@@ -288,7 +288,6 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid) + page_cache_release(page); + goto fail; + } +- page_cache_release(page); + node->page[i] = page; + } + +@@ -398,11 +397,11 @@ node_error: + + void hfs_bnode_free(struct hfs_bnode *node) + { +- //int i; ++ int i; + +- //for (i = 0; i < node->tree->pages_per_bnode; i++) +- // if (node->page[i]) +- // page_cache_release(node->page[i]); ++ for (i = 0; i < node->tree->pages_per_bnode; i++) ++ if (node->page[i]) ++ page_cache_release(node->page[i]); + kfree(node); + } + +diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c +index 9f4ee7f52026..6fc766df0461 100644 +--- a/fs/hfs/brec.c ++++ b/fs/hfs/brec.c +@@ -131,13 +131,16 @@ skip: + hfs_bnode_write(node, entry, data_off + key_len, entry_len); + hfs_bnode_dump(node); + +- if (new_node) { +- /* update parent key if we inserted a key +- * at the start of the first node +- */ +- if (!rec && new_node != node) +- hfs_brec_update_parent(fd); ++ /* ++ * update parent key if we inserted a key ++ * at the start of the node and it is not the new node ++ */ ++ if (!rec && new_node != node) { ++ hfs_bnode_read_key(node, fd->search_key, data_off + size); ++ hfs_brec_update_parent(fd); ++ } + ++ if (new_node) { + hfs_bnode_put(fd->bnode); + if (!new_node->parent) { + hfs_btree_inc_height(tree); +@@ -166,9 +169,6 @@ skip: + goto again; + } + +- if (!rec) +- hfs_brec_update_parent(fd); +- + return 0; + } + +@@ -366,6 +366,8 @@ again: + if (IS_ERR(parent)) + return PTR_ERR(parent); + __hfs_brec_find(parent, fd); ++ if (fd->record < 0) ++ return -ENOENT; + hfs_bnode_dump(parent); + rec = fd->record; + +diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c +index 11c860204520..bedfe5f7d332 100644 +--- a/fs/hfsplus/bnode.c ++++ b/fs/hfsplus/bnode.c +@@ -456,7 +456,6 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid) + page_cache_release(page); + goto fail; + } +- page_cache_release(page); + node->page[i] = page; + } + +@@ -568,13 +567,11 @@ node_error: + + void hfs_bnode_free(struct hfs_bnode *node) + { +-#if 0 + int i; + + for (i = 0; i < node->tree->pages_per_bnode; i++) + if (node->page[i]) + page_cache_release(node->page[i]); +-#endif + kfree(node); + } + +diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c +index 58258ad50d5f..7b945957e230 100644 +--- a/fs/nfs/nfs4proc.c ++++ b/fs/nfs/nfs4proc.c +@@ -2275,7 +2275,7 @@ static int _nfs4_do_open(struct inode *dir, + goto err_free_label; + state = ctx->state; + +- if ((opendata->o_arg.open_flags & O_EXCL) && ++ if ((opendata->o_arg.open_flags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL) && + (opendata->o_arg.createmode != NFS4_CREATE_GUARDED)) { + nfs4_exclusive_attrset(opendata, sattr); + +@@ -8368,6 +8368,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = { + .reboot_recovery_ops = &nfs41_reboot_recovery_ops, + .nograce_recovery_ops = &nfs41_nograce_recovery_ops, + .state_renewal_ops = &nfs41_state_renewal_ops, ++ .mig_recovery_ops = &nfs41_mig_recovery_ops, + }; + #endif + +diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c +index 27d7f2742592..11763ce73709 100644 +--- a/fs/nfs/pagelist.c ++++ b/fs/nfs/pagelist.c +@@ -60,8 +60,8 @@ EXPORT_SYMBOL_GPL(nfs_pgheader_init); + void nfs_set_pgio_error(struct nfs_pgio_header *hdr, int error, loff_t pos) + { + spin_lock(&hdr->lock); +- if (pos < hdr->io_start + hdr->good_bytes) { +- set_bit(NFS_IOHDR_ERROR, &hdr->flags); ++ if (!test_and_set_bit(NFS_IOHDR_ERROR, &hdr->flags) ++ || pos < hdr->io_start + hdr->good_bytes) { + clear_bit(NFS_IOHDR_EOF, &hdr->flags); + hdr->good_bytes = pos - hdr->io_start; + hdr->error = error; +diff --git a/fs/udf/inode.c b/fs/udf/inode.c +index 287cd5f23421..142d29e3ccdf 100644 +--- a/fs/udf/inode.c ++++ b/fs/udf/inode.c +@@ -1496,6 +1496,22 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) + iinfo->i_checkpoint = le32_to_cpu(efe->checkpoint); + } + ++ /* ++ * Sanity check length of allocation descriptors and extended attrs to ++ * avoid integer overflows ++ */ ++ if (iinfo->i_lenEAttr > inode->i_sb->s_blocksize ++ || iinfo->i_lenAlloc > inode->i_sb->s_blocksize) { ++ make_bad_inode(inode); ++ return; ++ } ++ /* Now do exact checks */ ++ if (udf_file_entry_alloc_offset(inode) ++ + iinfo->i_lenAlloc > inode->i_sb->s_blocksize) { ++ make_bad_inode(inode); ++ return; ++ } ++ + switch (fe->icbTag.fileType) { + case ICBTAG_FILE_TYPE_DIRECTORY: + inode->i_op = &udf_dir_inode_operations; +diff --git a/include/net/ip.h b/include/net/ip.h +index 5128fa7a8302..476bab2d28b0 100644 +--- a/include/net/ip.h ++++ b/include/net/ip.h +@@ -154,6 +154,7 @@ static inline __u8 get_rtconn_flags(struct ipcm_cookie* ipc, struct sock* sk) + } + + /* datagram.c */ ++int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len); + int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len); + + void ip4_datagram_release_cb(struct sock *sk); +diff --git a/kernel/fork.c b/kernel/fork.c +index e2c685396295..1394fb3476d0 100644 +--- a/kernel/fork.c ++++ b/kernel/fork.c +@@ -1756,13 +1756,21 @@ static int check_unshare_flags(unsigned long unshare_flags) + CLONE_NEWUSER|CLONE_NEWPID)) + return -EINVAL; + /* +- * Not implemented, but pretend it works if there is nothing to +- * unshare. Note that unsharing CLONE_THREAD or CLONE_SIGHAND +- * needs to unshare vm. ++ * Not implemented, but pretend it works if there is nothing ++ * to unshare. Note that unsharing the address space or the ++ * signal handlers also need to unshare the signal queues (aka ++ * CLONE_THREAD). + */ + if (unshare_flags & (CLONE_THREAD | CLONE_SIGHAND | CLONE_VM)) { +- /* FIXME: get_task_mm() increments ->mm_users */ +- if (atomic_read(¤t->mm->mm_users) > 1) ++ if (!thread_group_empty(current)) ++ return -EINVAL; ++ } ++ if (unshare_flags & (CLONE_SIGHAND | CLONE_VM)) { ++ if (atomic_read(¤t->sighand->count) > 1) ++ return -EINVAL; ++ } ++ if (unshare_flags & CLONE_VM) { ++ if (!current_is_single_threaded()) + return -EINVAL; + } + +@@ -1831,16 +1839,16 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags) + if (unshare_flags & CLONE_NEWUSER) + unshare_flags |= CLONE_THREAD | CLONE_FS; + /* +- * If unsharing a thread from a thread group, must also unshare vm. +- */ +- if (unshare_flags & CLONE_THREAD) +- unshare_flags |= CLONE_VM; +- /* + * If unsharing vm, must also unshare signal handlers. + */ + if (unshare_flags & CLONE_VM) + unshare_flags |= CLONE_SIGHAND; + /* ++ * If unsharing a signal handlers, must also unshare the signal queues. ++ */ ++ if (unshare_flags & CLONE_SIGHAND) ++ unshare_flags |= CLONE_THREAD; ++ /* + * If unsharing namespace, must also unshare filesystem information. + */ + if (unshare_flags & CLONE_NEWNS) +diff --git a/mm/vmscan.c b/mm/vmscan.c +index 88edf53748ee..57af138d26a2 100644 +--- a/mm/vmscan.c ++++ b/mm/vmscan.c +@@ -1087,7 +1087,7 @@ cull_mlocked: + if (PageSwapCache(page)) + try_to_free_swap(page); + unlock_page(page); +- putback_lru_page(page); ++ list_add(&page->lru, &ret_pages); + continue; + + activate_locked: +diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c +index b7b1914dfa25..27cf128ebc15 100644 +--- a/net/bridge/br_mdb.c ++++ b/net/bridge/br_mdb.c +@@ -347,7 +347,6 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port, + return -ENOMEM; + rcu_assign_pointer(*pp, p); + +- br_mdb_notify(br->dev, port, group, RTM_NEWMDB); + return 0; + } + +@@ -370,6 +369,7 @@ static int __br_mdb_add(struct net *net, struct net_bridge *br, + if (!p || p->br != br || p->state == BR_STATE_DISABLED) + return -EINVAL; + ++ memset(&ip, 0, sizeof(ip)); + ip.proto = entry->addr.proto; + if (ip.proto == htons(ETH_P_IP)) + ip.u.ip4 = entry->addr.u.ip4; +@@ -416,6 +416,7 @@ static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry) + if (!netif_running(br->dev) || br->multicast_disabled) + return -EINVAL; + ++ memset(&ip, 0, sizeof(ip)); + ip.proto = entry->addr.proto; + if (ip.proto == htons(ETH_P_IP)) { + if (timer_pending(&br->ip4_querier.timer)) +diff --git a/net/core/datagram.c b/net/core/datagram.c +index a16ed7bbe376..13bc7dad7990 100644 +--- a/net/core/datagram.c ++++ b/net/core/datagram.c +@@ -130,6 +130,35 @@ out_noerr: + goto out; + } + ++static struct sk_buff *skb_set_peeked(struct sk_buff *skb) ++{ ++ struct sk_buff *nskb; ++ ++ if (skb->peeked) ++ return skb; ++ ++ /* We have to unshare an skb before modifying it. */ ++ if (!skb_shared(skb)) ++ goto done; ++ ++ nskb = skb_clone(skb, GFP_ATOMIC); ++ if (!nskb) ++ return ERR_PTR(-ENOMEM); ++ ++ skb->prev->next = nskb; ++ skb->next->prev = nskb; ++ nskb->prev = skb->prev; ++ nskb->next = skb->next; ++ ++ consume_skb(skb); ++ skb = nskb; ++ ++done: ++ skb->peeked = 1; ++ ++ return skb; ++} ++ + /** + * __skb_recv_datagram - Receive a datagram skbuff + * @sk: socket +@@ -164,7 +193,9 @@ out_noerr: + struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags, + int *peeked, int *off, int *err) + { ++ struct sk_buff_head *queue = &sk->sk_receive_queue; + struct sk_buff *skb, *last; ++ unsigned long cpu_flags; + long timeo; + /* + * Caller is allowed not to check sk->sk_err before skb_recv_datagram() +@@ -183,8 +214,6 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags, + * Look at current nfs client by the way... + * However, this function was correct in any case. 8) + */ +- unsigned long cpu_flags; +- struct sk_buff_head *queue = &sk->sk_receive_queue; + int _off = *off; + + last = (struct sk_buff *)queue; +@@ -198,7 +227,12 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags, + _off -= skb->len; + continue; + } +- skb->peeked = 1; ++ ++ skb = skb_set_peeked(skb); ++ error = PTR_ERR(skb); ++ if (IS_ERR(skb)) ++ goto unlock_err; ++ + atomic_inc(&skb->users); + } else + __skb_unlink(skb, queue); +@@ -222,6 +256,8 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags, + + return NULL; + ++unlock_err: ++ spin_unlock_irqrestore(&queue->lock, cpu_flags); + no_packet: + *err = error; + return NULL; +@@ -742,7 +778,8 @@ __sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len) + if (likely(!sum)) { + if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE)) + netdev_rx_csum_fault(skb->dev); +- skb->ip_summed = CHECKSUM_UNNECESSARY; ++ if (!skb_shared(skb)) ++ skb->ip_summed = CHECKSUM_UNNECESSARY; + } + return sum; + } +diff --git a/net/core/dev.c b/net/core/dev.c +index 1b9e700c85b6..ae3260fc133d 100644 +--- a/net/core/dev.c ++++ b/net/core/dev.c +@@ -3214,6 +3214,8 @@ static int enqueue_to_backlog(struct sk_buff *skb, int cpu, + local_irq_save(flags); + + rps_lock(sd); ++ if (!netif_running(skb->dev)) ++ goto drop; + qlen = skb_queue_len(&sd->input_pkt_queue); + if (qlen <= netdev_max_backlog && !skb_flow_limit(skb, qlen)) { + if (skb_queue_len(&sd->input_pkt_queue)) { +@@ -3235,6 +3237,7 @@ enqueue: + goto enqueue; + } + ++drop: + sd->dropped++; + rps_unlock(sd); + +@@ -3551,8 +3554,6 @@ static int __netif_receive_skb_core(struct sk_buff *skb, bool pfmemalloc) + + pt_prev = NULL; + +- rcu_read_lock(); +- + another_round: + skb->skb_iif = skb->dev->ifindex; + +@@ -3562,7 +3563,7 @@ another_round: + skb->protocol == cpu_to_be16(ETH_P_8021AD)) { + skb = skb_vlan_untag(skb); + if (unlikely(!skb)) +- goto unlock; ++ goto out; + } + + #ifdef CONFIG_NET_CLS_ACT +@@ -3587,7 +3588,7 @@ skip_taps: + #ifdef CONFIG_NET_CLS_ACT + skb = handle_ing(skb, &pt_prev, &ret, orig_dev); + if (!skb) +- goto unlock; ++ goto out; + ncls: + #endif + +@@ -3602,7 +3603,7 @@ ncls: + if (vlan_do_receive(&skb)) + goto another_round; + else if (unlikely(!skb)) +- goto unlock; ++ goto out; + } + + rx_handler = rcu_dereference(skb->dev->rx_handler); +@@ -3614,7 +3615,7 @@ ncls: + switch (rx_handler(&skb)) { + case RX_HANDLER_CONSUMED: + ret = NET_RX_SUCCESS; +- goto unlock; ++ goto out; + case RX_HANDLER_ANOTHER: + goto another_round; + case RX_HANDLER_EXACT: +@@ -3666,8 +3667,6 @@ drop: + ret = NET_RX_DROP; + } + +-unlock: +- rcu_read_unlock(); + out: + return ret; + } +@@ -3699,29 +3698,30 @@ static int __netif_receive_skb(struct sk_buff *skb) + + static int netif_receive_skb_internal(struct sk_buff *skb) + { ++ int ret; ++ + net_timestamp_check(netdev_tstamp_prequeue, skb); + + if (skb_defer_rx_timestamp(skb)) + return NET_RX_SUCCESS; + ++ rcu_read_lock(); ++ + #ifdef CONFIG_RPS + if (static_key_false(&rps_needed)) { + struct rps_dev_flow voidflow, *rflow = &voidflow; +- int cpu, ret; +- +- rcu_read_lock(); +- +- cpu = get_rps_cpu(skb->dev, skb, &rflow); ++ int cpu = get_rps_cpu(skb->dev, skb, &rflow); + + if (cpu >= 0) { + ret = enqueue_to_backlog(skb, cpu, &rflow->last_qtail); + rcu_read_unlock(); + return ret; + } +- rcu_read_unlock(); + } + #endif +- return __netif_receive_skb(skb); ++ ret = __netif_receive_skb(skb); ++ rcu_read_unlock(); ++ return ret; + } + + /** +@@ -4182,8 +4182,10 @@ static int process_backlog(struct napi_struct *napi, int quota) + unsigned int qlen; + + while ((skb = __skb_dequeue(&sd->process_queue))) { ++ rcu_read_lock(); + local_irq_enable(); + __netif_receive_skb(skb); ++ rcu_read_unlock(); + local_irq_disable(); + input_queue_head_incr(sd); + if (++work >= quota) { +@@ -5694,6 +5696,7 @@ static void rollback_registered_many(struct list_head *head) + unlist_netdevice(dev); + + dev->reg_state = NETREG_UNREGISTERING; ++ on_each_cpu(flush_backlog, dev, 1); + } + + synchronize_net(); +@@ -5951,7 +5954,8 @@ static int netif_alloc_netdev_queues(struct net_device *dev) + struct netdev_queue *tx; + size_t sz = count * sizeof(*tx); + +- BUG_ON(count < 1 || count > 0xffff); ++ if (count < 1 || count > 0xffff) ++ return -EINVAL; + + tx = kzalloc(sz, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT); + if (!tx) { +@@ -6309,8 +6313,6 @@ void netdev_run_todo(void) + + dev->reg_state = NETREG_UNREGISTERED; + +- on_each_cpu(flush_backlog, dev, 1); +- + netdev_wait_allrefs(dev); + + /* paranoia */ +diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c +index 185c341fafbd..aeedc3a961a1 100644 +--- a/net/core/fib_rules.c ++++ b/net/core/fib_rules.c +@@ -621,15 +621,17 @@ static int dump_rules(struct sk_buff *skb, struct netlink_callback *cb, + { + int idx = 0; + struct fib_rule *rule; ++ int err = 0; + + rcu_read_lock(); + list_for_each_entry_rcu(rule, &ops->rules_list, list) { + if (idx < cb->args[1]) + goto skip; + +- if (fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).portid, +- cb->nlh->nlmsg_seq, RTM_NEWRULE, +- NLM_F_MULTI, ops) < 0) ++ err = fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).portid, ++ cb->nlh->nlmsg_seq, RTM_NEWRULE, ++ NLM_F_MULTI, ops); ++ if (err) + break; + skip: + idx++; +@@ -638,7 +640,7 @@ skip: + cb->args[1] = idx; + rules_ops_put(ops); + +- return skb->len; ++ return err; + } + + static int fib_nl_dumprule(struct sk_buff *skb, struct netlink_callback *cb) +@@ -654,7 +656,9 @@ static int fib_nl_dumprule(struct sk_buff *skb, struct netlink_callback *cb) + if (ops == NULL) + return -EAFNOSUPPORT; + +- return dump_rules(skb, cb, ops); ++ dump_rules(skb, cb, ops); ++ ++ return skb->len; + } + + rcu_read_lock(); +diff --git a/net/core/pktgen.c b/net/core/pktgen.c +index ca68d32b49ba..dbd797a62b3a 100644 +--- a/net/core/pktgen.c ++++ b/net/core/pktgen.c +@@ -3464,8 +3464,10 @@ static int pktgen_thread_worker(void *arg) + pktgen_rem_thread(t); + + /* Wait for kthread_stop */ +- while (!kthread_should_stop()) { ++ for (;;) { + set_current_state(TASK_INTERRUPTIBLE); ++ if (kthread_should_stop()) ++ break; + schedule(); + } + __set_current_state(TASK_RUNNING); +diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c +index 8aadd6a072a4..465092f8fb76 100644 +--- a/net/core/rtnetlink.c ++++ b/net/core/rtnetlink.c +@@ -1259,10 +1259,6 @@ static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = { + [IFLA_INFO_SLAVE_DATA] = { .type = NLA_NESTED }, + }; + +-static const struct nla_policy ifla_vfinfo_policy[IFLA_VF_INFO_MAX+1] = { +- [IFLA_VF_INFO] = { .type = NLA_NESTED }, +-}; +- + static const struct nla_policy ifla_vf_policy[IFLA_VF_MAX+1] = { + [IFLA_VF_MAC] = { .len = sizeof(struct ifla_vf_mac) }, + [IFLA_VF_VLAN] = { .len = sizeof(struct ifla_vf_vlan) }, +@@ -1336,67 +1332,66 @@ static int validate_linkmsg(struct net_device *dev, struct nlattr *tb[]) + return 0; + } + +-static int do_setvfinfo(struct net_device *dev, struct nlattr *attr) ++static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) + { +- int rem, err = -EINVAL; +- struct nlattr *vf; + const struct net_device_ops *ops = dev->netdev_ops; ++ int err = -EINVAL; + +- nla_for_each_nested(vf, attr, rem) { +- switch (nla_type(vf)) { +- case IFLA_VF_MAC: { +- struct ifla_vf_mac *ivm; +- ivm = nla_data(vf); +- err = -EOPNOTSUPP; +- if (ops->ndo_set_vf_mac) +- err = ops->ndo_set_vf_mac(dev, ivm->vf, +- ivm->mac); +- break; +- } +- case IFLA_VF_VLAN: { +- struct ifla_vf_vlan *ivv; +- ivv = nla_data(vf); +- err = -EOPNOTSUPP; +- if (ops->ndo_set_vf_vlan) +- err = ops->ndo_set_vf_vlan(dev, ivv->vf, +- ivv->vlan, +- ivv->qos); +- break; +- } +- case IFLA_VF_TX_RATE: { +- struct ifla_vf_tx_rate *ivt; +- ivt = nla_data(vf); +- err = -EOPNOTSUPP; +- if (ops->ndo_set_vf_tx_rate) +- err = ops->ndo_set_vf_tx_rate(dev, ivt->vf, +- ivt->rate); +- break; +- } +- case IFLA_VF_SPOOFCHK: { +- struct ifla_vf_spoofchk *ivs; +- ivs = nla_data(vf); +- err = -EOPNOTSUPP; +- if (ops->ndo_set_vf_spoofchk) +- err = ops->ndo_set_vf_spoofchk(dev, ivs->vf, +- ivs->setting); +- break; +- } +- case IFLA_VF_LINK_STATE: { +- struct ifla_vf_link_state *ivl; +- ivl = nla_data(vf); +- err = -EOPNOTSUPP; +- if (ops->ndo_set_vf_link_state) +- err = ops->ndo_set_vf_link_state(dev, ivl->vf, +- ivl->link_state); +- break; +- } +- default: +- err = -EINVAL; +- break; +- } +- if (err) +- break; ++ if (tb[IFLA_VF_MAC]) { ++ struct ifla_vf_mac *ivm = nla_data(tb[IFLA_VF_MAC]); ++ ++ err = -EOPNOTSUPP; ++ if (ops->ndo_set_vf_mac) ++ err = ops->ndo_set_vf_mac(dev, ivm->vf, ++ ivm->mac); ++ if (err < 0) ++ return err; ++ } ++ ++ if (tb[IFLA_VF_VLAN]) { ++ struct ifla_vf_vlan *ivv = nla_data(tb[IFLA_VF_VLAN]); ++ ++ err = -EOPNOTSUPP; ++ if (ops->ndo_set_vf_vlan) ++ err = ops->ndo_set_vf_vlan(dev, ivv->vf, ivv->vlan, ++ ivv->qos); ++ if (err < 0) ++ return err; ++ } ++ ++ if (tb[IFLA_VF_TX_RATE]) { ++ struct ifla_vf_tx_rate *ivt = nla_data(tb[IFLA_VF_TX_RATE]); ++ ++ err = -EOPNOTSUPP; ++ if (ops->ndo_set_vf_tx_rate) ++ err = ops->ndo_set_vf_tx_rate(dev, ivt->vf, ++ ivt->rate); ++ if (err < 0) ++ return err; + } ++ ++ if (tb[IFLA_VF_SPOOFCHK]) { ++ struct ifla_vf_spoofchk *ivs = nla_data(tb[IFLA_VF_SPOOFCHK]); ++ ++ err = -EOPNOTSUPP; ++ if (ops->ndo_set_vf_spoofchk) ++ err = ops->ndo_set_vf_spoofchk(dev, ivs->vf, ++ ivs->setting); ++ if (err < 0) ++ return err; ++ } ++ ++ if (tb[IFLA_VF_LINK_STATE]) { ++ struct ifla_vf_link_state *ivl = nla_data(tb[IFLA_VF_LINK_STATE]); ++ ++ err = -EOPNOTSUPP; ++ if (ops->ndo_set_vf_link_state) ++ err = ops->ndo_set_vf_link_state(dev, ivl->vf, ++ ivl->link_state); ++ if (err < 0) ++ return err; ++ } ++ + return err; + } + +@@ -1579,14 +1574,21 @@ static int do_setlink(const struct sk_buff *skb, + } + + if (tb[IFLA_VFINFO_LIST]) { ++ struct nlattr *vfinfo[IFLA_VF_MAX + 1]; + struct nlattr *attr; + int rem; ++ + nla_for_each_nested(attr, tb[IFLA_VFINFO_LIST], rem) { +- if (nla_type(attr) != IFLA_VF_INFO) { ++ if (nla_type(attr) != IFLA_VF_INFO || ++ nla_len(attr) < NLA_HDRLEN) { + err = -EINVAL; + goto errout; + } +- err = do_setvfinfo(dev, attr); ++ err = nla_parse_nested(vfinfo, IFLA_VF_MAX, attr, ++ ifla_vf_policy); ++ if (err < 0) ++ goto errout; ++ err = do_setvfinfo(dev, vfinfo); + if (err < 0) + goto errout; + modified = 1; +diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c +index 951fe55b1671..f4c804dbd3b4 100644 +--- a/net/ipv4/af_inet.c ++++ b/net/ipv4/af_inet.c +@@ -1291,7 +1291,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, + + encap = SKB_GSO_CB(skb)->encap_level > 0; + if (encap) +- features = skb->dev->hw_enc_features & netif_skb_features(skb); ++ features &= skb->dev->hw_enc_features; + SKB_GSO_CB(skb)->encap_level += ihl; + + skb_reset_transport_header(skb); +diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c +index a3095fdefbed..f0c307cb6196 100644 +--- a/net/ipv4/datagram.c ++++ b/net/ipv4/datagram.c +@@ -20,7 +20,7 @@ + #include <net/route.h> + #include <net/tcp_states.h> + +-int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) ++int __ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) + { + struct inet_sock *inet = inet_sk(sk); + struct sockaddr_in *usin = (struct sockaddr_in *) uaddr; +@@ -39,8 +39,6 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) + + sk_dst_reset(sk); + +- lock_sock(sk); +- + oif = sk->sk_bound_dev_if; + saddr = inet->inet_saddr; + if (ipv4_is_multicast(usin->sin_addr.s_addr)) { +@@ -81,9 +79,19 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) + sk_dst_set(sk, &rt->dst); + err = 0; + out: +- release_sock(sk); + return err; + } ++EXPORT_SYMBOL(__ip4_datagram_connect); ++ ++int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) ++{ ++ int res; ++ ++ lock_sock(sk); ++ res = __ip4_datagram_connect(sk, uaddr, addr_len); ++ release_sock(sk); ++ return res; ++} + EXPORT_SYMBOL(ip4_datagram_connect); + + /* Because UDP xmit path can manipulate sk_dst_cache without holding +diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c +index 278836f1a5ad..0da513e7730a 100644 +--- a/net/ipv4/gre_offload.c ++++ b/net/ipv4/gre_offload.c +@@ -69,7 +69,7 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb, + skb->mac_len = skb_inner_network_offset(skb); + + /* segment inner packet. */ +- enc_features = skb->dev->hw_enc_features & netif_skb_features(skb); ++ enc_features = skb->dev->hw_enc_features & features; + segs = skb_mac_gso_segment(skb, enc_features); + if (!segs || IS_ERR(segs)) { + skb_gso_error_unwind(skb, protocol, ghl, mac_offset, mac_len); +diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c +index 9ff497d17545..3f3a424ef0d5 100644 +--- a/net/ipv4/ip_fragment.c ++++ b/net/ipv4/ip_fragment.c +@@ -357,7 +357,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb) + ihl = ip_hdrlen(skb); + + /* Determine the position of this fragment. */ +- end = offset + skb->len - ihl; ++ end = offset + skb->len - skb_network_offset(skb) - ihl; + err = -EINVAL; + + /* Is this the final fragment? */ +@@ -387,7 +387,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb) + goto err; + + err = -ENOMEM; +- if (pskb_pull(skb, ihl) == NULL) ++ if (!pskb_pull(skb, skb_network_offset(skb) + ihl)) + goto err; + + err = pskb_trim_rcsum(skb, end - offset); +@@ -628,6 +628,9 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev, + iph->frag_off = qp->q.max_size ? htons(IP_DF) : 0; + iph->tot_len = htons(len); + iph->tos |= ecn; ++ ++ ip_send_check(iph); ++ + IP_INC_STATS_BH(net, IPSTATS_MIB_REASMOKS); + qp->q.fragments = NULL; + qp->q.fragments_tail = NULL; +diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c +index 0a4af0920af3..2d4be69c64f4 100644 +--- a/net/ipv4/ip_tunnel.c ++++ b/net/ipv4/ip_tunnel.c +@@ -484,7 +484,8 @@ drop: + EXPORT_SYMBOL_GPL(ip_tunnel_rcv); + + static int tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb, +- struct rtable *rt, __be16 df) ++ struct rtable *rt, __be16 df, ++ const struct iphdr *inner_iph) + { + struct ip_tunnel *tunnel = netdev_priv(dev); + int pkt_size = skb->len - tunnel->hlen - dev->hard_header_len; +@@ -501,7 +502,8 @@ static int tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb, + + if (skb->protocol == htons(ETH_P_IP)) { + if (!skb_is_gso(skb) && +- (df & htons(IP_DF)) && mtu < pkt_size) { ++ (inner_iph->frag_off & htons(IP_DF)) && ++ mtu < pkt_size) { + memset(IPCB(skb), 0, sizeof(*IPCB(skb))); + icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu)); + return -E2BIG; +@@ -632,7 +634,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, + goto tx_error; + } + +- if (tnl_update_pmtu(dev, skb, rt, tnl_params->frag_off)) { ++ if (tnl_update_pmtu(dev, skb, rt, tnl_params->frag_off, inner_iph)) { + ip_rt_put(rt); + goto tx_error; + } +diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c +index 21a3a9e90b10..6970e36ad7b8 100644 +--- a/net/ipv4/udp.c ++++ b/net/ipv4/udp.c +@@ -1957,12 +1957,19 @@ void udp_v4_early_demux(struct sk_buff *skb) + + skb->sk = sk; + skb->destructor = sock_edemux; +- dst = sk->sk_rx_dst; ++ dst = ACCESS_ONCE(sk->sk_rx_dst); + + if (dst) + dst = dst_check(dst, 0); +- if (dst) +- skb_dst_set_noref(skb, dst); ++ if (dst) { ++ /* DST_NOCACHE can not be used without taking a reference */ ++ if (dst->flags & DST_NOCACHE) { ++ if (likely(atomic_inc_not_zero(&dst->__refcnt))) ++ skb_dst_set(skb, dst); ++ } else { ++ skb_dst_set_noref(skb, dst); ++ } ++ } + } + + int udp_rcv(struct sk_buff *skb) +@@ -2510,7 +2517,7 @@ struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb, + skb->protocol = htons(ETH_P_TEB); + + /* segment inner packet. */ +- enc_features = skb->dev->hw_enc_features & netif_skb_features(skb); ++ enc_features = skb->dev->hw_enc_features & features; + segs = skb_mac_gso_segment(skb, enc_features); + if (!segs || IS_ERR(segs)) { + skb_gso_error_unwind(skb, protocol, tnl_hlen, mac_offset, +diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c +index 841cfa2c4600..6b89b2a1ac74 100644 +--- a/net/ipv6/datagram.c ++++ b/net/ipv6/datagram.c +@@ -40,7 +40,7 @@ static bool ipv6_mapped_addr_any(const struct in6_addr *a) + return ipv6_addr_v4mapped(a) && (a->s6_addr32[3] == 0); + } + +-int ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) ++static int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) + { + struct sockaddr_in6 *usin = (struct sockaddr_in6 *) uaddr; + struct inet_sock *inet = inet_sk(sk); +@@ -56,7 +56,7 @@ int ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) + if (usin->sin6_family == AF_INET) { + if (__ipv6_only_sock(sk)) + return -EAFNOSUPPORT; +- err = ip4_datagram_connect(sk, uaddr, addr_len); ++ err = __ip4_datagram_connect(sk, uaddr, addr_len); + goto ipv4_connected; + } + +@@ -98,9 +98,9 @@ int ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) + sin.sin_addr.s_addr = daddr->s6_addr32[3]; + sin.sin_port = usin->sin6_port; + +- err = ip4_datagram_connect(sk, +- (struct sockaddr *) &sin, +- sizeof(sin)); ++ err = __ip4_datagram_connect(sk, ++ (struct sockaddr *) &sin, ++ sizeof(sin)); + + ipv4_connected: + if (err) +@@ -203,6 +203,16 @@ out: + fl6_sock_release(flowlabel); + return err; + } ++ ++int ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) ++{ ++ int res; ++ ++ lock_sock(sk); ++ res = __ip6_datagram_connect(sk, uaddr, addr_len); ++ release_sock(sk); ++ return res; ++} + EXPORT_SYMBOL_GPL(ip6_datagram_connect); + + int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr *uaddr, +diff --git a/net/ipv6/exthdrs_offload.c b/net/ipv6/exthdrs_offload.c +index 447a7fbd1bb6..f5e2ba1c18bf 100644 +--- a/net/ipv6/exthdrs_offload.c ++++ b/net/ipv6/exthdrs_offload.c +@@ -36,6 +36,6 @@ out: + return ret; + + out_rt: +- inet_del_offload(&rthdr_offload, IPPROTO_ROUTING); ++ inet6_del_offload(&rthdr_offload, IPPROTO_ROUTING); + goto out; + } +diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c +index 4a230b18dfe3..baffa3b7a328 100644 +--- a/net/ipv6/ip6_gre.c ++++ b/net/ipv6/ip6_gre.c +@@ -357,6 +357,7 @@ static void ip6gre_tunnel_uninit(struct net_device *dev) + struct ip6gre_net *ign = net_generic(net, ip6gre_net_id); + + ip6gre_tunnel_unlink(ign, netdev_priv(dev)); ++ ip6_tnl_dst_reset(netdev_priv(dev)); + dev_put(dev); + } + +diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c +index 51d54dc376f3..05c94d9c3776 100644 +--- a/net/ipv6/ip6_input.c ++++ b/net/ipv6/ip6_input.c +@@ -329,10 +329,10 @@ int ip6_mc_input(struct sk_buff *skb) + if (offset < 0) + goto out; + +- if (!ipv6_is_mld(skb, nexthdr, offset)) +- goto out; ++ if (ipv6_is_mld(skb, nexthdr, offset)) ++ deliver = true; + +- deliver = true; ++ goto out; + } + /* unknown RA - process it normally */ + } +diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c +index b2f091566f88..dc46ebae1987 100644 +--- a/net/ipv6/ip6_offload.c ++++ b/net/ipv6/ip6_offload.c +@@ -112,7 +112,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, + + encap = SKB_GSO_CB(skb)->encap_level > 0; + if (encap) +- features = skb->dev->hw_enc_features & netif_skb_features(skb); ++ features &= skb->dev->hw_enc_features; + SKB_GSO_CB(skb)->encap_level += sizeof(*ipv6h); + + ipv6h = ipv6_hdr(skb); +diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c +index 8737400af0a0..821d8dfb2ddd 100644 +--- a/net/ipv6/ip6mr.c ++++ b/net/ipv6/ip6mr.c +@@ -552,7 +552,7 @@ static void ipmr_mfc_seq_stop(struct seq_file *seq, void *v) + + if (it->cache == &mrt->mfc6_unres_queue) + spin_unlock_bh(&mfc_unres_lock); +- else if (it->cache == mrt->mfc6_cache_array) ++ else if (it->cache == &mrt->mfc6_cache_array[it->ct]) + read_unlock(&mrt_lock); + } + +diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c +index dca076f6252c..bc08a9ce3bd4 100644 +--- a/net/mac80211/tx.c ++++ b/net/mac80211/tx.c +@@ -297,9 +297,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) + if (tx->sdata->vif.type == NL80211_IFTYPE_WDS) + return TX_CONTINUE; + +- if (tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT) +- return TX_CONTINUE; +- + if (tx->flags & IEEE80211_TX_PS_BUFFERED) + return TX_CONTINUE; + +diff --git a/net/mpls/mpls_gso.c b/net/mpls/mpls_gso.c +index 851cd880b0c0..0c970cbe0405 100644 +--- a/net/mpls/mpls_gso.c ++++ b/net/mpls/mpls_gso.c +@@ -47,7 +47,7 @@ static struct sk_buff *mpls_gso_segment(struct sk_buff *skb, + __skb_push(skb, skb->mac_len); + + /* Segment inner packet. */ +- mpls_features = skb->dev->mpls_features & netif_skb_features(skb); ++ mpls_features = skb->dev->mpls_features & features; + segs = skb_mac_gso_segment(skb, mpls_features); + + +diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c +index a0b0ea949192..fd9373c9f057 100644 +--- a/net/netlink/af_netlink.c ++++ b/net/netlink/af_netlink.c +@@ -115,6 +115,24 @@ static inline struct hlist_head *nl_portid_hashfn(struct nl_portid_hash *hash, u + return &hash->table[jhash_1word(portid, hash->rnd) & hash->mask]; + } + ++static struct sk_buff *netlink_to_full_skb(const struct sk_buff *skb, ++ gfp_t gfp_mask) ++{ ++ unsigned int len = skb_end_offset(skb); ++ struct sk_buff *new; ++ ++ new = alloc_skb(len, gfp_mask); ++ if (new == NULL) ++ return NULL; ++ ++ NETLINK_CB(new).portid = NETLINK_CB(skb).portid; ++ NETLINK_CB(new).dst_group = NETLINK_CB(skb).dst_group; ++ NETLINK_CB(new).creds = NETLINK_CB(skb).creds; ++ ++ memcpy(skb_put(new, len), skb->data, len); ++ return new; ++} ++ + int netlink_add_tap(struct netlink_tap *nt) + { + if (unlikely(nt->dev->type != ARPHRD_NETLINK)) +@@ -199,7 +217,11 @@ static int __netlink_deliver_tap_skb(struct sk_buff *skb, + int ret = -ENOMEM; + + dev_hold(dev); +- nskb = skb_clone(skb, GFP_ATOMIC); ++ ++ if (netlink_skb_is_mmaped(skb) || is_vmalloc_addr(skb->head)) ++ nskb = netlink_to_full_skb(skb, GFP_ATOMIC); ++ else ++ nskb = skb_clone(skb, GFP_ATOMIC); + if (nskb) { + nskb->dev = dev; + nskb->protocol = htons((u16) sk->sk_protocol); +@@ -271,11 +293,6 @@ static void netlink_rcv_wake(struct sock *sk) + } + + #ifdef CONFIG_NETLINK_MMAP +-static bool netlink_skb_is_mmaped(const struct sk_buff *skb) +-{ +- return NETLINK_CB(skb).flags & NETLINK_SKB_MMAPED; +-} +- + static bool netlink_rx_is_mmaped(struct sock *sk) + { + return nlk_sk(sk)->rx_ring.pg_vec != NULL; +@@ -350,25 +367,52 @@ err1: + return NULL; + } + ++ ++static void ++__netlink_set_ring(struct sock *sk, struct nl_mmap_req *req, bool tx_ring, void **pg_vec, ++ unsigned int order) ++{ ++ struct netlink_sock *nlk = nlk_sk(sk); ++ struct sk_buff_head *queue; ++ struct netlink_ring *ring; ++ ++ queue = tx_ring ? &sk->sk_write_queue : &sk->sk_receive_queue; ++ ring = tx_ring ? &nlk->tx_ring : &nlk->rx_ring; ++ ++ spin_lock_bh(&queue->lock); ++ ++ ring->frame_max = req->nm_frame_nr - 1; ++ ring->head = 0; ++ ring->frame_size = req->nm_frame_size; ++ ring->pg_vec_pages = req->nm_block_size / PAGE_SIZE; ++ ++ swap(ring->pg_vec_len, req->nm_block_nr); ++ swap(ring->pg_vec_order, order); ++ swap(ring->pg_vec, pg_vec); ++ ++ __skb_queue_purge(queue); ++ spin_unlock_bh(&queue->lock); ++ ++ WARN_ON(atomic_read(&nlk->mapped)); ++ ++ if (pg_vec) ++ free_pg_vec(pg_vec, order, req->nm_block_nr); ++} ++ + static int netlink_set_ring(struct sock *sk, struct nl_mmap_req *req, +- bool closing, bool tx_ring) ++ bool tx_ring) + { + struct netlink_sock *nlk = nlk_sk(sk); + struct netlink_ring *ring; +- struct sk_buff_head *queue; + void **pg_vec = NULL; + unsigned int order = 0; +- int err; + + ring = tx_ring ? &nlk->tx_ring : &nlk->rx_ring; +- queue = tx_ring ? &sk->sk_write_queue : &sk->sk_receive_queue; + +- if (!closing) { +- if (atomic_read(&nlk->mapped)) +- return -EBUSY; +- if (atomic_read(&ring->pending)) +- return -EBUSY; +- } ++ if (atomic_read(&nlk->mapped)) ++ return -EBUSY; ++ if (atomic_read(&ring->pending)) ++ return -EBUSY; + + if (req->nm_block_nr) { + if (ring->pg_vec != NULL) +@@ -400,31 +444,19 @@ static int netlink_set_ring(struct sock *sk, struct nl_mmap_req *req, + return -EINVAL; + } + +- err = -EBUSY; + mutex_lock(&nlk->pg_vec_lock); +- if (closing || atomic_read(&nlk->mapped) == 0) { +- err = 0; +- spin_lock_bh(&queue->lock); +- +- ring->frame_max = req->nm_frame_nr - 1; +- ring->head = 0; +- ring->frame_size = req->nm_frame_size; +- ring->pg_vec_pages = req->nm_block_size / PAGE_SIZE; +- +- swap(ring->pg_vec_len, req->nm_block_nr); +- swap(ring->pg_vec_order, order); +- swap(ring->pg_vec, pg_vec); +- +- __skb_queue_purge(queue); +- spin_unlock_bh(&queue->lock); +- +- WARN_ON(atomic_read(&nlk->mapped)); ++ if (atomic_read(&nlk->mapped) == 0) { ++ __netlink_set_ring(sk, req, tx_ring, pg_vec, order); ++ mutex_unlock(&nlk->pg_vec_lock); ++ return 0; + } ++ + mutex_unlock(&nlk->pg_vec_lock); + + if (pg_vec) + free_pg_vec(pg_vec, order, req->nm_block_nr); +- return err; ++ ++ return -EBUSY; + } + + static void netlink_mm_open(struct vm_area_struct *vma) +@@ -812,7 +844,6 @@ static void netlink_ring_set_copied(struct sock *sk, struct sk_buff *skb) + } + + #else /* CONFIG_NETLINK_MMAP */ +-#define netlink_skb_is_mmaped(skb) false + #define netlink_rx_is_mmaped(sk) false + #define netlink_tx_is_mmaped(sk) false + #define netlink_mmap sock_no_mmap +@@ -893,10 +924,10 @@ static void netlink_sock_destruct(struct sock *sk) + + memset(&req, 0, sizeof(req)); + if (nlk->rx_ring.pg_vec) +- netlink_set_ring(sk, &req, true, false); ++ __netlink_set_ring(sk, &req, false, NULL, 0); + memset(&req, 0, sizeof(req)); + if (nlk->tx_ring.pg_vec) +- netlink_set_ring(sk, &req, true, true); ++ __netlink_set_ring(sk, &req, true, NULL, 0); + } + #endif /* CONFIG_NETLINK_MMAP */ + +@@ -2190,7 +2221,7 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname, + return -EINVAL; + if (copy_from_user(&req, optval, sizeof(req))) + return -EFAULT; +- err = netlink_set_ring(sk, &req, false, ++ err = netlink_set_ring(sk, &req, + optname == NETLINK_TX_RING); + break; + } +diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h +index acbd774eeb7c..dcc89c74b514 100644 +--- a/net/netlink/af_netlink.h ++++ b/net/netlink/af_netlink.h +@@ -65,6 +65,15 @@ struct nl_portid_hash { + u32 rnd; + }; + ++static inline bool netlink_skb_is_mmaped(const struct sk_buff *skb) ++{ ++#ifdef CONFIG_NETLINK_MMAP ++ return NETLINK_CB(skb).flags & NETLINK_SKB_MMAPED; ++#else ++ return false; ++#endif /* CONFIG_NETLINK_MMAP */ ++} ++ + struct netlink_table { + struct nl_portid_hash hash; + struct hlist_head mc_list; +diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c +index 270b77dfac30..8bb1a5a9b02e 100644 +--- a/net/openvswitch/datapath.c ++++ b/net/openvswitch/datapath.c +@@ -803,7 +803,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info) + if (IS_ERR(acts)) + goto error; + +- ovs_flow_mask_key(&masked_key, &key, &mask); ++ ovs_flow_mask_key(&masked_key, &key, true, &mask); + error = ovs_nla_copy_actions(a[OVS_FLOW_ATTR_ACTIONS], + &masked_key, 0, &acts); + if (error) { +diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c +index 3c268b3d71c3..4877d5a212a2 100644 +--- a/net/openvswitch/flow_table.c ++++ b/net/openvswitch/flow_table.c +@@ -55,18 +55,21 @@ static u16 range_n_bytes(const struct sw_flow_key_range *range) + } + + void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src, +- const struct sw_flow_mask *mask) ++ bool full, const struct sw_flow_mask *mask) + { +- const long *m = (long *)((u8 *)&mask->key + mask->range.start); +- const long *s = (long *)((u8 *)src + mask->range.start); +- long *d = (long *)((u8 *)dst + mask->range.start); ++ int start = full ? 0 : mask->range.start; ++ int len = full ? sizeof *dst : range_n_bytes(&mask->range); ++ const long *m = (const long *)((const u8 *)&mask->key + start); ++ const long *s = (const long *)((const u8 *)src + start); ++ long *d = (long *)((u8 *)dst + start); + int i; + +- /* The memory outside of the 'mask->range' are not set since +- * further operations on 'dst' only uses contents within +- * 'mask->range'. ++ /* If 'full' is true then all of 'dst' is fully initialized. Otherwise, ++ * if 'full' is false the memory outside of the 'mask->range' is left ++ * uninitialized. This can be used as an optimization when further ++ * operations on 'dst' only use contents within 'mask->range'. + */ +- for (i = 0; i < range_n_bytes(&mask->range); i += sizeof(long)) ++ for (i = 0; i < len; i += sizeof(long)) + *d++ = *s++ & *m++; + } + +@@ -436,7 +439,7 @@ static struct sw_flow *masked_flow_lookup(struct table_instance *ti, + u32 hash; + struct sw_flow_key masked_key; + +- ovs_flow_mask_key(&masked_key, unmasked, mask); ++ ovs_flow_mask_key(&masked_key, unmasked, false, mask); + hash = flow_hash(&masked_key, key_start, key_end); + head = find_bucket(ti, hash); + hlist_for_each_entry_rcu(flow, head, hash_node[ti->node_ver]) { +diff --git a/net/openvswitch/flow_table.h b/net/openvswitch/flow_table.h +index baaeb101924d..82e64a9b6416 100644 +--- a/net/openvswitch/flow_table.h ++++ b/net/openvswitch/flow_table.h +@@ -79,5 +79,5 @@ bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow, + struct sw_flow_match *match); + + void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src, +- const struct sw_flow_mask *mask); ++ bool full, const struct sw_flow_mask *mask); + #endif /* flow_table.h */ +diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c +index 84a60b82e235..fee7dcc28abd 100644 +--- a/net/packet/af_packet.c ++++ b/net/packet/af_packet.c +@@ -2645,7 +2645,7 @@ static int packet_release(struct socket *sock) + static int packet_do_bind(struct sock *sk, struct net_device *dev, __be16 proto) + { + struct packet_sock *po = pkt_sk(sk); +- const struct net_device *dev_curr; ++ struct net_device *dev_curr; + __be16 proto_curr; + bool need_rehook; + +@@ -2669,15 +2669,13 @@ static int packet_do_bind(struct sock *sk, struct net_device *dev, __be16 proto) + + po->num = proto; + po->prot_hook.type = proto; +- +- if (po->prot_hook.dev) +- dev_put(po->prot_hook.dev); +- + po->prot_hook.dev = dev; + + po->ifindex = dev ? dev->ifindex : 0; + packet_cached_dev_assign(po, dev); + } ++ if (dev_curr) ++ dev_put(dev_curr); + + if (proto == 0 || !need_rehook) + goto out_unlock; +diff --git a/net/rds/info.c b/net/rds/info.c +index 9a6b4f66187c..140a44a5f7b7 100644 +--- a/net/rds/info.c ++++ b/net/rds/info.c +@@ -176,7 +176,7 @@ int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval, + + /* check for all kinds of wrapping and the like */ + start = (unsigned long)optval; +- if (len < 0 || len + PAGE_SIZE - 1 < len || start + len < start) { ++ if (len < 0 || len > INT_MAX - PAGE_SIZE + 1 || start + len < start) { + ret = -EINVAL; + goto out; + } +diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c +index a62a215dd22e..1237a237495b 100644 +--- a/net/sctp/protocol.c ++++ b/net/sctp/protocol.c +@@ -1167,7 +1167,7 @@ static void sctp_v4_del_protocol(void) + unregister_inetaddr_notifier(&sctp_inetaddr_notifier); + } + +-static int __net_init sctp_net_init(struct net *net) ++static int __net_init sctp_defaults_init(struct net *net) + { + int status; + +@@ -1260,12 +1260,6 @@ static int __net_init sctp_net_init(struct net *net) + + sctp_dbg_objcnt_init(net); + +- /* Initialize the control inode/socket for handling OOTB packets. */ +- if ((status = sctp_ctl_sock_init(net))) { +- pr_err("Failed to initialize the SCTP control sock\n"); +- goto err_ctl_sock_init; +- } +- + /* Initialize the local address list. */ + INIT_LIST_HEAD(&net->sctp.local_addr_list); + spin_lock_init(&net->sctp.local_addr_lock); +@@ -1281,9 +1275,6 @@ static int __net_init sctp_net_init(struct net *net) + + return 0; + +-err_ctl_sock_init: +- sctp_dbg_objcnt_exit(net); +- sctp_proc_exit(net); + err_init_proc: + cleanup_sctp_mibs(net); + err_init_mibs: +@@ -1292,15 +1283,12 @@ err_sysctl_register: + return status; + } + +-static void __net_exit sctp_net_exit(struct net *net) ++static void __net_exit sctp_defaults_exit(struct net *net) + { + /* Free the local address list */ + sctp_free_addr_wq(net); + sctp_free_local_addr_list(net); + +- /* Free the control endpoint. */ +- inet_ctl_sock_destroy(net->sctp.ctl_sock); +- + sctp_dbg_objcnt_exit(net); + + sctp_proc_exit(net); +@@ -1308,9 +1296,32 @@ static void __net_exit sctp_net_exit(struct net *net) + sctp_sysctl_net_unregister(net); + } + +-static struct pernet_operations sctp_net_ops = { +- .init = sctp_net_init, +- .exit = sctp_net_exit, ++static struct pernet_operations sctp_defaults_ops = { ++ .init = sctp_defaults_init, ++ .exit = sctp_defaults_exit, ++}; ++ ++static int __net_init sctp_ctrlsock_init(struct net *net) ++{ ++ int status; ++ ++ /* Initialize the control inode/socket for handling OOTB packets. */ ++ status = sctp_ctl_sock_init(net); ++ if (status) ++ pr_err("Failed to initialize the SCTP control sock\n"); ++ ++ return status; ++} ++ ++static void __net_init sctp_ctrlsock_exit(struct net *net) ++{ ++ /* Free the control endpoint. */ ++ inet_ctl_sock_destroy(net->sctp.ctl_sock); ++} ++ ++static struct pernet_operations sctp_ctrlsock_ops = { ++ .init = sctp_ctrlsock_init, ++ .exit = sctp_ctrlsock_exit, + }; + + /* Initialize the universe into something sensible. */ +@@ -1444,8 +1455,11 @@ static __init int sctp_init(void) + sctp_v4_pf_init(); + sctp_v6_pf_init(); + +- status = sctp_v4_protosw_init(); ++ status = register_pernet_subsys(&sctp_defaults_ops); ++ if (status) ++ goto err_register_defaults; + ++ status = sctp_v4_protosw_init(); + if (status) + goto err_protosw_init; + +@@ -1453,9 +1467,9 @@ static __init int sctp_init(void) + if (status) + goto err_v6_protosw_init; + +- status = register_pernet_subsys(&sctp_net_ops); ++ status = register_pernet_subsys(&sctp_ctrlsock_ops); + if (status) +- goto err_register_pernet_subsys; ++ goto err_register_ctrlsock; + + status = sctp_v4_add_protocol(); + if (status) +@@ -1471,12 +1485,14 @@ out: + err_v6_add_protocol: + sctp_v4_del_protocol(); + err_add_protocol: +- unregister_pernet_subsys(&sctp_net_ops); +-err_register_pernet_subsys: ++ unregister_pernet_subsys(&sctp_ctrlsock_ops); ++err_register_ctrlsock: + sctp_v6_protosw_exit(); + err_v6_protosw_init: + sctp_v4_protosw_exit(); + err_protosw_init: ++ unregister_pernet_subsys(&sctp_defaults_ops); ++err_register_defaults: + sctp_v4_pf_exit(); + sctp_v6_pf_exit(); + sctp_sysctl_unregister(); +@@ -1509,12 +1525,14 @@ static __exit void sctp_exit(void) + sctp_v6_del_protocol(); + sctp_v4_del_protocol(); + +- unregister_pernet_subsys(&sctp_net_ops); ++ unregister_pernet_subsys(&sctp_ctrlsock_ops); + + /* Free protosw registrations */ + sctp_v6_protosw_exit(); + sctp_v4_protosw_exit(); + ++ unregister_pernet_subsys(&sctp_defaults_ops); ++ + /* Unregister with socket layer. */ + sctp_v6_pf_exit(); + sctp_v4_pf_exit(); +diff --git a/net/tipc/socket.c b/net/tipc/socket.c +index 0ed0eaa62f29..830e40b329d6 100644 +--- a/net/tipc/socket.c ++++ b/net/tipc/socket.c +@@ -1681,6 +1681,7 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags) + res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, 1); + if (res) + goto exit; ++ security_sk_clone(sock->sk, new_sock->sk); + + new_sk = new_sock->sk; + new_tsock = tipc_sk(new_sk); +diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c +index 907371d87312..08e29311e17d 100644 +--- a/sound/pci/hda/patch_realtek.c ++++ b/sound/pci/hda/patch_realtek.c +@@ -1193,7 +1193,7 @@ static const struct hda_fixup alc880_fixups[] = { + /* override all pins as BIOS on old Amilo is broken */ + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { +- { 0x14, 0x0121411f }, /* HP */ ++ { 0x14, 0x0121401f }, /* HP */ + { 0x15, 0x99030120 }, /* speaker */ + { 0x16, 0x99030130 }, /* bass speaker */ + { 0x17, 0x411111f0 }, /* N/A */ +@@ -1213,7 +1213,7 @@ static const struct hda_fixup alc880_fixups[] = { + /* almost compatible with FUJITSU, but no bass and SPDIF */ + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { +- { 0x14, 0x0121411f }, /* HP */ ++ { 0x14, 0x0121401f }, /* HP */ + { 0x15, 0x99030120 }, /* speaker */ + { 0x16, 0x411111f0 }, /* N/A */ + { 0x17, 0x411111f0 }, /* N/A */ +@@ -1421,7 +1421,7 @@ static const struct snd_pci_quirk alc880_fixup_tbl[] = { + SND_PCI_QUIRK(0x161f, 0x203d, "W810", ALC880_FIXUP_W810), + SND_PCI_QUIRK(0x161f, 0x205d, "Medion Rim 2150", ALC880_FIXUP_MEDION_RIM), + SND_PCI_QUIRK(0x1631, 0xe011, "PB 13201056", ALC880_FIXUP_6ST_AUTOMUTE), +- SND_PCI_QUIRK(0x1734, 0x107c, "FSC F1734", ALC880_FIXUP_F1734), ++ SND_PCI_QUIRK(0x1734, 0x107c, "FSC Amilo M1437", ALC880_FIXUP_FUJITSU), + SND_PCI_QUIRK(0x1734, 0x1094, "FSC Amilo M1451G", ALC880_FIXUP_FUJITSU), + SND_PCI_QUIRK(0x1734, 0x10ac, "FSC AMILO Xi 1526", ALC880_FIXUP_F1734), + SND_PCI_QUIRK(0x1734, 0x10b0, "FSC Amilo Pi1556", ALC880_FIXUP_FUJITSU),
