diff --git a/Documentation/x86/mds.rst b/Documentation/x86/mds.rst index 534e9baa4e1d..5d4330be200f 100644 --- a/Documentation/x86/mds.rst +++ b/Documentation/x86/mds.rst @@ -142,45 +142,13 @@ Mitigation points mds_user_clear. The mitigation is invoked in prepare_exit_to_usermode() which covers - most of the kernel to user space transitions. There are a few exceptions - which are not invoking prepare_exit_to_usermode() on return to user - space. These exceptions use the paranoid exit code. + all but one of the kernel to user space transitions. The exception + is when we return from a Non Maskable Interrupt (NMI), which is + handled directly in do_nmi(). - - Non Maskable Interrupt (NMI): - - Access to sensible data like keys, credentials in the NMI context is - mostly theoretical: The CPU can do prefetching or execute a - misspeculated code path and thereby fetching data which might end up - leaking through a buffer. - - But for mounting other attacks the kernel stack address of the task is - already valuable information. So in full mitigation mode, the NMI is - mitigated on the return from do_nmi() to provide almost complete - coverage. - - - Double fault (#DF): - - A double fault is usually fatal, but the ESPFIX workaround, which can - be triggered from user space through modify_ldt(2) is a recoverable - double fault. #DF uses the paranoid exit path, so explicit mitigation - in the double fault handler is required. - - - Machine Check Exception (#MC): - - Another corner case is a #MC which hits between the CPU buffer clear - invocation and the actual return to user. As this still is in kernel - space it takes the paranoid exit path which does not clear the CPU - buffers. So the #MC handler repopulates the buffers to some - extent. Machine checks are not reliably controllable and the window is - extremly small so mitigation would just tick a checkbox that this - theoretical corner case is covered. To keep the amount of special - cases small, ignore #MC. - - - Debug Exception (#DB): - - This takes the paranoid exit path only when the INT1 breakpoint is in - kernel space. #DB on a user space address takes the regular exit path, - so no extra mitigation required. + (The reason that NMI is special is that prepare_exit_to_usermode() can + enable IRQs. In NMI context, NMIs are blocked, and we don't want to + enable IRQs with NMIs blocked.) 2. C-State transition diff --git a/Makefile b/Makefile index 6023a9dbad59..b33f3ecf84fc 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 4 -SUBLEVEL = 180 +SUBLEVEL = 181 EXTRAVERSION = NAME = Blurry Fish Butt diff --git a/arch/arm/crypto/aesbs-glue.c b/arch/arm/crypto/aesbs-glue.c index 648d5fac9cbf..3271c836e1a1 100644 --- a/arch/arm/crypto/aesbs-glue.c +++ b/arch/arm/crypto/aesbs-glue.c @@ -259,6 +259,8 @@ static int aesbs_xts_encrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE); + if (err) + return err; /* generate the initial tweak */ AES_encrypt(walk.iv, walk.iv, &ctx->twkey); @@ -283,6 +285,8 @@ static int aesbs_xts_decrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE); + if (err) + return err; /* generate the initial tweak */ AES_encrypt(walk.iv, walk.iv, &ctx->twkey); diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index d7bef2144760..e96ddc599c30 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -744,7 +744,7 @@ int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_level, static int kvm_vcpu_set_target(struct kvm_vcpu *vcpu, const struct kvm_vcpu_init *init) { - unsigned int i; + unsigned int i, ret; int phys_target = kvm_target_cpu(); if (init->target != phys_target) @@ -779,9 +779,14 @@ static int kvm_vcpu_set_target(struct kvm_vcpu *vcpu, vcpu->arch.target = phys_target; /* Now we know what it is, we can reset it. */ - return kvm_reset_vcpu(vcpu); -} + ret = kvm_reset_vcpu(vcpu); + if (ret) { + vcpu->arch.target = -1; + bitmap_zero(vcpu->arch.features, KVM_VCPU_MAX_FEATURES); + } + return ret; +} static int kvm_arch_vcpu_ioctl_vcpu_init(struct kvm_vcpu *vcpu, struct kvm_vcpu_init *init) diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 111cfbf66fdb..7bfe2bd17400 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -207,6 +207,7 @@ void __init exynos_firmware_init(void) return; addr = of_get_address(nd, 0, NULL, NULL); + of_node_put(nd); if (!addr) { pr_err("%s: No address specified.\n", __func__); return; diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c index e8adb428dddb..a003833ac112 100644 --- a/arch/arm/mach-exynos/suspend.c +++ b/arch/arm/mach-exynos/suspend.c @@ -725,8 +725,10 @@ void __init exynos_pm_init(void) if (WARN_ON(!of_find_property(np, "interrupt-controller", NULL))) { pr_warn("Outdated DT detected, suspend/resume will NOT work\n"); + of_node_put(np); return; } + of_node_put(np); pm_data = (const struct exynos_pm_data *) match->data; diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c index b6bd7d447768..fbd6aead48e1 100644 --- a/arch/arm64/kernel/cpu_ops.c +++ b/arch/arm64/kernel/cpu_ops.c @@ -73,6 +73,7 @@ static const char *__init cpu_read_enable_method(int cpu) pr_err("%s: missing enable-method property\n", dn->full_name); } + of_node_put(dn); } else { enable_method = acpi_get_enable_method(cpu); if (!enable_method) diff --git a/arch/mips/pistachio/Platform b/arch/mips/pistachio/Platform index d80cd612df1f..c3592b374ad2 100644 --- a/arch/mips/pistachio/Platform +++ b/arch/mips/pistachio/Platform @@ -6,3 +6,4 @@ cflags-$(CONFIG_MACH_PISTACHIO) += \ -I$(srctree)/arch/mips/include/asm/mach-pistachio load-$(CONFIG_MACH_PISTACHIO) += 0xffffffff80400000 zload-$(CONFIG_MACH_PISTACHIO) += 0xffffffff81000000 +all-$(CONFIG_MACH_PISTACHIO) := uImage.gz diff --git a/arch/powerpc/boot/addnote.c b/arch/powerpc/boot/addnote.c index 9d9f6f334d3c..3da3e2b1b51b 100644 --- a/arch/powerpc/boot/addnote.c +++ b/arch/powerpc/boot/addnote.c @@ -223,7 +223,11 @@ main(int ac, char **av) PUT_16(E_PHNUM, np + 2); /* write back */ - lseek(fd, (long) 0, SEEK_SET); + i = lseek(fd, (long) 0, SEEK_SET); + if (i < 0) { + perror("lseek"); + exit(1); + } i = write(fd, buf, n); if (i < 0) { perror("write"); diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index bb3df222ae71..215bff2b8470 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1611,6 +1611,9 @@ int start_topology_update(void) { int rc = 0; + if (!topology_updates_enabled) + return 0; + if (firmware_has_feature(FW_FEATURE_PRRN)) { if (!prrn_enabled) { prrn_enabled = 1; @@ -1640,6 +1643,9 @@ int stop_topology_update(void) { int rc = 0; + if (!topology_updates_enabled) + return 0; + if (prrn_enabled) { prrn_enabled = 0; #ifdef CONFIG_SMP @@ -1685,11 +1691,13 @@ static ssize_t topology_write(struct file *file, const char __user *buf, kbuf[read_len] = '\0'; - if (!strncmp(kbuf, "on", 2)) + if (!strncmp(kbuf, "on", 2)) { + topology_updates_enabled = true; start_topology_update(); - else if (!strncmp(kbuf, "off", 3)) + } else if (!strncmp(kbuf, "off", 3)) { stop_topology_update(); - else + topology_updates_enabled = false; + } else return -EINVAL; return count; @@ -1704,9 +1712,7 @@ static const struct file_operations topology_ops = { static int topology_update_init(void) { - /* Do not poll for changes if disabled at boot */ - if (topology_updates_enabled) - start_topology_update(); + start_topology_update(); if (!proc_create("powerpc/topology_updates", 0644, NULL, &topology_ops)) return -ENOMEM; diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S index fcf4d27a38fb..e09f7b440b8c 100644 --- a/arch/sparc/mm/ultra.S +++ b/arch/sparc/mm/ultra.S @@ -586,7 +586,7 @@ xcall_flush_tlb_kernel_range: /* 44 insns */ sub %g7, %g1, %g3 srlx %g3, 18, %g2 brnz,pn %g2, 2f - add %g2, 1, %g2 + sethi %hi(PAGE_SIZE), %g2 sub %g3, %g2, %g3 or %g1, 0x20, %g1 ! Nucleus 1: stxa %g0, [%g1 + %g3] ASI_DMMU_DEMAP @@ -750,7 +750,7 @@ __cheetah_xcall_flush_tlb_kernel_range: /* 44 insns */ sub %g7, %g1, %g3 srlx %g3, 18, %g2 brnz,pn %g2, 2f - add %g2, 1, %g2 + sethi %hi(PAGE_SIZE), %g2 sub %g3, %g2, %g3 or %g1, 0x20, %g1 ! Nucleus 1: stxa %g0, [%g1 + %g3] ASI_DMMU_DEMAP diff --git a/arch/x86/Makefile b/arch/x86/Makefile index e26560cd1844..00e0226634fa 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -47,7 +47,7 @@ export REALMODE_CFLAGS export BITS ifdef CONFIG_X86_NEED_RELOCS - LDFLAGS_vmlinux := --emit-relocs + LDFLAGS_vmlinux := --emit-relocs --discard-none endif # diff --git a/arch/x86/crypto/crct10dif-pclmul_glue.c b/arch/x86/crypto/crct10dif-pclmul_glue.c index cd4df9322501..7bbfe7d35da7 100644 --- a/arch/x86/crypto/crct10dif-pclmul_glue.c +++ b/arch/x86/crypto/crct10dif-pclmul_glue.c @@ -76,15 +76,14 @@ static int chksum_final(struct shash_desc *desc, u8 *out) return 0; } -static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len, - u8 *out) +static int __chksum_finup(__u16 crc, const u8 *data, unsigned int len, u8 *out) { if (irq_fpu_usable()) { kernel_fpu_begin(); - *(__u16 *)out = crc_t10dif_pcl(*crcp, data, len); + *(__u16 *)out = crc_t10dif_pcl(crc, data, len); kernel_fpu_end(); } else - *(__u16 *)out = crc_t10dif_generic(*crcp, data, len); + *(__u16 *)out = crc_t10dif_generic(crc, data, len); return 0; } @@ -93,15 +92,13 @@ static int chksum_finup(struct shash_desc *desc, const u8 *data, { struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - return __chksum_finup(&ctx->crc, data, len, out); + return __chksum_finup(ctx->crc, data, len, out); } static int chksum_digest(struct shash_desc *desc, const u8 *data, unsigned int length, u8 *out) { - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - return __chksum_finup(&ctx->crc, data, length, out); + return __chksum_finup(0, data, length, out); } static struct shash_alg alg = { diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index 0552884da18d..a7b9acd709db 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -60,9 +60,8 @@ } while (0) #define RELOAD_SEG(seg) { \ - unsigned int pre = GET_SEG(seg); \ + unsigned int pre = (seg) | 3; \ unsigned int cur = get_user_seg(seg); \ - pre |= 3; \ if (pre != cur) \ set_user_seg(seg, pre); \ } @@ -71,6 +70,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs, struct sigcontext_32 __user *sc) { unsigned int tmpflags, err = 0; + u16 gs, fs, es, ds; void __user *buf; u32 tmp; @@ -78,16 +78,10 @@ static int ia32_restore_sigcontext(struct pt_regs *regs, current->restart_block.fn = do_no_restart_syscall; get_user_try { - /* - * Reload fs and gs if they have changed in the signal - * handler. This does not handle long fs/gs base changes in - * the handler, but does not clobber them at least in the - * normal case. - */ - RELOAD_SEG(gs); - RELOAD_SEG(fs); - RELOAD_SEG(ds); - RELOAD_SEG(es); + gs = GET_SEG(gs); + fs = GET_SEG(fs); + ds = GET_SEG(ds); + es = GET_SEG(es); COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx); COPY(dx); COPY(cx); COPY(ip); COPY(ax); @@ -105,6 +99,17 @@ static int ia32_restore_sigcontext(struct pt_regs *regs, buf = compat_ptr(tmp); } get_user_catch(err); + /* + * Reload fs and gs if they have changed in the signal + * handler. This does not handle long fs/gs base changes in + * the handler, but does not clobber them at least in the + * normal case. + */ + RELOAD_SEG(gs); + RELOAD_SEG(fs); + RELOAD_SEG(ds); + RELOAD_SEG(es); + err |= fpu__restore_sig(buf, 1); force_iret(); diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c index 206d0b90a3ab..e39d7197f9fb 100644 --- a/arch/x86/kernel/irq_64.c +++ b/arch/x86/kernel/irq_64.c @@ -25,9 +25,18 @@ int sysctl_panic_on_stackoverflow; /* * Probabilistic stack overflow check: * - * Only check the stack in process context, because everything else - * runs on the big interrupt stacks. Checking reliably is too expensive, - * so we just check from interrupts. + * Regular device interrupts can enter on the following stacks: + * + * - User stack + * + * - Kernel task stack + * + * - Interrupt stack if a device driver reenables interrupts + * which should only happen in really old drivers. + * + * - Debug IST stack + * + * All other contexts are invalid. */ static inline void stack_overflow_check(struct pt_regs *regs) { @@ -53,8 +62,8 @@ static inline void stack_overflow_check(struct pt_regs *regs) return; oist = this_cpu_ptr(&orig_ist); - estack_top = (u64)oist->ist[0] - EXCEPTION_STKSZ + STACK_TOP_MARGIN; - estack_bottom = (u64)oist->ist[N_EXCEPTION_STACKS - 1]; + estack_bottom = (u64)oist->ist[DEBUG_STACK]; + estack_top = estack_bottom - DEBUG_STKSZ + STACK_TOP_MARGIN; if (regs->sp >= estack_top && regs->sp <= estack_bottom) return; diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 6223929fc621..8c73bf1492b8 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -61,7 +61,6 @@ #include #include #include -#include #include #include @@ -338,13 +337,6 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code) regs->ip = (unsigned long)general_protection; regs->sp = (unsigned long)&normal_regs->orig_ax; - /* - * This situation can be triggered by userspace via - * modify_ldt(2) and the return does not take the regular - * user space exit, so a CPU buffer clear is required when - * MDS mitigation is enabled. - */ - mds_user_clear_cpu_buffers(); return; } #endif diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index d830a0d60ba4..516d8b1562c8 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -990,11 +990,8 @@ static u32 emulated_msrs[] = { static unsigned num_emulated_msrs; -bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer) +static bool __kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer) { - if (efer & efer_reserved_bits) - return false; - if (efer & EFER_FFXSR) { struct kvm_cpuid_entry2 *feat; @@ -1012,19 +1009,33 @@ bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer) } return true; + +} +bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer) +{ + if (efer & efer_reserved_bits) + return false; + + return __kvm_valid_efer(vcpu, efer); } EXPORT_SYMBOL_GPL(kvm_valid_efer); -static int set_efer(struct kvm_vcpu *vcpu, u64 efer) +static int set_efer(struct kvm_vcpu *vcpu, struct msr_data *msr_info) { u64 old_efer = vcpu->arch.efer; + u64 efer = msr_info->data; - if (!kvm_valid_efer(vcpu, efer)) + if (efer & efer_reserved_bits) return 1; - if (is_paging(vcpu) - && (vcpu->arch.efer & EFER_LME) != (efer & EFER_LME)) - return 1; + if (!msr_info->host_initiated) { + if (!__kvm_valid_efer(vcpu, efer)) + return 1; + + if (is_paging(vcpu) && + (vcpu->arch.efer & EFER_LME) != (efer & EFER_LME)) + return 1; + } efer &= ~EFER_LMA; efer |= vcpu->arch.efer & EFER_LMA; @@ -2055,7 +2066,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) break; case MSR_EFER: - return set_efer(vcpu, data); + return set_efer(vcpu, msr_info); case MSR_K7_HWCR: data &= ~(u64)0x40; /* ignore flush filter disable */ data &= ~(u64)0x100; /* ignore ignne emulation enable */ diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index c4dffae5d939..462c5c30b9a2 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -373,8 +373,6 @@ static noinline int vmalloc_fault(unsigned long address) if (!(address >= VMALLOC_START && address < VMALLOC_END)) return -1; - WARN_ON_ONCE(in_nmi()); - /* * Copy kernel mappings over when needed. This can also * happen within a race in page table update. In the later diff --git a/crypto/chacha20poly1305.c b/crypto/chacha20poly1305.c index 0214600ba071..6c4724222e3a 100644 --- a/crypto/chacha20poly1305.c +++ b/crypto/chacha20poly1305.c @@ -637,8 +637,8 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb, err = -ENAMETOOLONG; if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME, - "%s(%s,%s)", name, chacha_name, - poly_name) >= CRYPTO_MAX_ALG_NAME) + "%s(%s,%s)", name, chacha->cra_name, + poly->cra_name) >= CRYPTO_MAX_ALG_NAME) goto out_drop_chacha; if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s(%s,%s)", name, chacha->cra_driver_name, diff --git a/crypto/crct10dif_generic.c b/crypto/crct10dif_generic.c index c1229614c7e3..eed577714975 100644 --- a/crypto/crct10dif_generic.c +++ b/crypto/crct10dif_generic.c @@ -65,10 +65,9 @@ static int chksum_final(struct shash_desc *desc, u8 *out) return 0; } -static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len, - u8 *out) +static int __chksum_finup(__u16 crc, const u8 *data, unsigned int len, u8 *out) { - *(__u16 *)out = crc_t10dif_generic(*crcp, data, len); + *(__u16 *)out = crc_t10dif_generic(crc, data, len); return 0; } @@ -77,15 +76,13 @@ static int chksum_finup(struct shash_desc *desc, const u8 *data, { struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - return __chksum_finup(&ctx->crc, data, len, out); + return __chksum_finup(ctx->crc, data, len, out); } static int chksum_digest(struct shash_desc *desc, const u8 *data, unsigned int length, u8 *out) { - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - return __chksum_finup(&ctx->crc, data, length, out); + return __chksum_finup(0, data, length, out); } static struct shash_alg alg = { diff --git a/crypto/gcm.c b/crypto/gcm.c index 0a12c09d7cb2..9d3bffc0238f 100644 --- a/crypto/gcm.c +++ b/crypto/gcm.c @@ -616,7 +616,6 @@ static void crypto_gcm_free(struct aead_instance *inst) static int crypto_gcm_create_common(struct crypto_template *tmpl, struct rtattr **tb, - const char *full_name, const char *ctr_name, const char *ghash_name) { @@ -657,7 +656,8 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl, goto err_free_inst; err = -EINVAL; - if (ghash->digestsize != 16) + if (strcmp(ghash->base.cra_name, "ghash") != 0 || + ghash->digestsize != 16) goto err_drop_ghash; crypto_set_skcipher_spawn(&ctx->ctr, aead_crypto_instance(inst)); @@ -669,24 +669,24 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl, ctr = crypto_skcipher_spawn_alg(&ctx->ctr); - /* We only support 16-byte blocks. */ - if (ctr->cra_ablkcipher.ivsize != 16) - goto out_put_ctr; - - /* Not a stream cipher? */ + /* The skcipher algorithm must be CTR mode, using 16-byte blocks. */ err = -EINVAL; - if (ctr->cra_blocksize != 1) + if (strncmp(ctr->cra_name, "ctr(", 4) != 0 || + ctr->cra_ablkcipher.ivsize != 16 || + ctr->cra_blocksize != 1) goto out_put_ctr; err = -ENAMETOOLONG; + if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME, + "gcm(%s", ctr->cra_name + 4) >= CRYPTO_MAX_ALG_NAME) + goto out_put_ctr; + if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "gcm_base(%s,%s)", ctr->cra_driver_name, ghash_alg->cra_driver_name) >= CRYPTO_MAX_ALG_NAME) goto out_put_ctr; - memcpy(inst->alg.base.cra_name, full_name, CRYPTO_MAX_ALG_NAME); - inst->alg.base.cra_flags = (ghash->base.cra_flags | ctr->cra_flags) & CRYPTO_ALG_ASYNC; inst->alg.base.cra_priority = (ghash->base.cra_priority + @@ -727,7 +727,6 @@ static int crypto_gcm_create(struct crypto_template *tmpl, struct rtattr **tb) { const char *cipher_name; char ctr_name[CRYPTO_MAX_ALG_NAME]; - char full_name[CRYPTO_MAX_ALG_NAME]; cipher_name = crypto_attr_alg_name(tb[1]); if (IS_ERR(cipher_name)) @@ -737,12 +736,7 @@ static int crypto_gcm_create(struct crypto_template *tmpl, struct rtattr **tb) CRYPTO_MAX_ALG_NAME) return -ENAMETOOLONG; - if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "gcm(%s)", cipher_name) >= - CRYPTO_MAX_ALG_NAME) - return -ENAMETOOLONG; - - return crypto_gcm_create_common(tmpl, tb, full_name, - ctr_name, "ghash"); + return crypto_gcm_create_common(tmpl, tb, ctr_name, "ghash"); } static struct crypto_template crypto_gcm_tmpl = { @@ -756,7 +750,6 @@ static int crypto_gcm_base_create(struct crypto_template *tmpl, { const char *ctr_name; const char *ghash_name; - char full_name[CRYPTO_MAX_ALG_NAME]; ctr_name = crypto_attr_alg_name(tb[1]); if (IS_ERR(ctr_name)) @@ -766,12 +759,7 @@ static int crypto_gcm_base_create(struct crypto_template *tmpl, if (IS_ERR(ghash_name)) return PTR_ERR(ghash_name); - if (snprintf(full_name, CRYPTO_MAX_ALG_NAME, "gcm_base(%s,%s)", - ctr_name, ghash_name) >= CRYPTO_MAX_ALG_NAME) - return -ENAMETOOLONG; - - return crypto_gcm_create_common(tmpl, tb, full_name, - ctr_name, ghash_name); + return crypto_gcm_create_common(tmpl, tb, ctr_name, ghash_name); } static struct crypto_template crypto_gcm_base_tmpl = { diff --git a/crypto/salsa20_generic.c b/crypto/salsa20_generic.c index d7da0eea5622..319d9962552e 100644 --- a/crypto/salsa20_generic.c +++ b/crypto/salsa20_generic.c @@ -186,7 +186,7 @@ static int encrypt(struct blkcipher_desc *desc, blkcipher_walk_init(&walk, dst, src, nbytes); err = blkcipher_walk_virt_block(desc, &walk, 64); - salsa20_ivsetup(ctx, walk.iv); + salsa20_ivsetup(ctx, desc->info); while (walk.nbytes >= 64) { salsa20_encrypt_bytes(ctx, walk.dst.virt.addr, diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 05409141ec07..8efdb823826c 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1378,6 +1378,10 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) if (dev->power.syscore) goto Complete; + /* Avoid direct_complete to let wakeup_path propagate. */ + if (device_may_wakeup(dev) || dev->power.wakeup_path) + dev->power.direct_complete = false; + if (dev->power.direct_complete) { if (pm_runtime_status_suspended(dev)) { pm_runtime_disable(dev); diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index b2da2382d544..67d23ed2d1a0 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -695,12 +695,16 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result, /* End of read */ len = ssif_info->multi_len; data = ssif_info->data; - } else if (blocknum != ssif_info->multi_pos) { + } else if (blocknum + 1 != ssif_info->multi_pos) { /* * Out of sequence block, just abort. Block * numbers start at zero for the second block, * but multi_pos starts at one, so the +1. */ + if (ssif_info->ssif_debug & SSIF_DEBUG_MSG) + dev_dbg(&ssif_info->client->dev, + "Received message out of sequence, expected %u, got %u\n", + ssif_info->multi_pos - 1, blocknum); result = -EIO; } else { ssif_inc_stat(ssif_info, received_message_parts); diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 2aca689061e1..df9eab91c2d2 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -76,7 +76,7 @@ struct ports_driver_data { /* All the console devices handled by this driver */ struct list_head consoles; }; -static struct ports_driver_data pdrvdata; +static struct ports_driver_data pdrvdata = { .next_vtermno = 1}; static DEFINE_SPINLOCK(pdrvdata_lock); static DECLARE_COMPLETION(early_console_added); @@ -1419,6 +1419,7 @@ static int add_port(struct ports_device *portdev, u32 id) port->async_queue = NULL; port->cons.ws.ws_row = port->cons.ws.ws_col = 0; + port->cons.vtermno = 0; port->host_connected = port->guest_connected = false; port->stats = (struct port_stats) { 0 }; diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c index d6d4ecb88e94..311f6e62264f 100644 --- a/drivers/clk/tegra/clk-pll.c +++ b/drivers/clk/tegra/clk-pll.c @@ -492,8 +492,8 @@ static void _update_pll_mnp(struct tegra_clk_pll *pll, pll_override_writel(val, params->pmc_divp_reg, pll); val = pll_override_readl(params->pmc_divnm_reg, pll); - val &= ~(divm_mask(pll) << div_nmp->override_divm_shift) | - ~(divn_mask(pll) << div_nmp->override_divn_shift); + val &= ~((divm_mask(pll) << div_nmp->override_divm_shift) | + (divn_mask(pll) << div_nmp->override_divn_shift)); val |= (cfg->m << div_nmp->override_divm_shift) | (cfg->n << div_nmp->override_divn_shift); pll_override_writel(val, params->pmc_divnm_reg, pll); diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c index 35dd4d7ffee0..58c933f48300 100644 --- a/drivers/cpufreq/pasemi-cpufreq.c +++ b/drivers/cpufreq/pasemi-cpufreq.c @@ -146,6 +146,7 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy) cpu = of_get_cpu_node(policy->cpu, NULL); + of_node_put(cpu); if (!cpu) goto out; diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c index 1f49d97a70ea..14928e0dc326 100644 --- a/drivers/cpufreq/pmac32-cpufreq.c +++ b/drivers/cpufreq/pmac32-cpufreq.c @@ -549,6 +549,7 @@ static int pmac_cpufreq_init_7447A(struct device_node *cpunode) volt_gpio_np = of_find_node_by_name(NULL, "cpu-vcore-select"); if (volt_gpio_np) voltage_gpio = read_gpio(volt_gpio_np); + of_node_put(volt_gpio_np); if (!voltage_gpio){ printk(KERN_ERR "cpufreq: missing cpu-vcore-select gpio\n"); return 1; @@ -585,6 +586,7 @@ static int pmac_cpufreq_init_750FX(struct device_node *cpunode) if (volt_gpio_np) voltage_gpio = read_gpio(volt_gpio_np); + of_node_put(volt_gpio_np); pvr = mfspr(SPRN_PVR); has_cpu_l2lve = !((pvr & 0xf00) == 0x100); diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c index 5a4c5a639f61..2eaeebcc93af 100644 --- a/drivers/cpufreq/ppc_cbe_cpufreq.c +++ b/drivers/cpufreq/ppc_cbe_cpufreq.c @@ -86,6 +86,7 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) if (!cbe_get_cpu_pmd_regs(policy->cpu) || !cbe_get_cpu_mic_tm_regs(policy->cpu)) { pr_info("invalid CBE regs pointers for cpufreq\n"); + of_node_put(cpu); return -EINVAL; } diff --git a/drivers/crypto/vmx/aesp8-ppc.pl b/drivers/crypto/vmx/aesp8-ppc.pl index 228053921b3f..4277fdd037bb 100644 --- a/drivers/crypto/vmx/aesp8-ppc.pl +++ b/drivers/crypto/vmx/aesp8-ppc.pl @@ -1298,7 +1298,7 @@ Loop_ctr32_enc: addi $idx,$idx,16 bdnz Loop_ctr32_enc - vadduwm $ivec,$ivec,$one + vadduqm $ivec,$ivec,$one vmr $dat,$inptail lvx $inptail,0,$inp addi $inp,$inp,16 @@ -1795,7 +1795,7 @@ Lctr32_enc8x_three: stvx_u $out1,$x10,$out stvx_u $out2,$x20,$out addi $out,$out,0x30 - b Lcbc_dec8x_done + b Lctr32_enc8x_done .align 5 Lctr32_enc8x_two: @@ -1807,7 +1807,7 @@ Lctr32_enc8x_two: stvx_u $out0,$x00,$out stvx_u $out1,$x10,$out addi $out,$out,0x20 - b Lcbc_dec8x_done + b Lctr32_enc8x_done .align 5 Lctr32_enc8x_one: diff --git a/drivers/crypto/vmx/ghash.c b/drivers/crypto/vmx/ghash.c index 84b9389bf1ed..d6b68cf7bba7 100644 --- a/drivers/crypto/vmx/ghash.c +++ b/drivers/crypto/vmx/ghash.c @@ -1,22 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0 /** * GHASH routines supporting VMX instructions on the Power 8 * - * Copyright (C) 2015 International Business Machines Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 only. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Copyright (C) 2015, 2019 International Business Machines Inc. * * Author: Marcelo Henrique Cerri + * + * Extended by Daniel Axtens to replace the fallback + * mechanism. The new approach is based on arm64 code, which is: + * Copyright (C) 2014 - 2018 Linaro Ltd. */ #include @@ -39,71 +31,25 @@ void gcm_ghash_p8(u64 Xi[2], const u128 htable[16], const u8 *in, size_t len); struct p8_ghash_ctx { + /* key used by vector asm */ u128 htable[16]; - struct crypto_shash *fallback; + /* key used by software fallback */ + be128 key; }; struct p8_ghash_desc_ctx { u64 shash[2]; u8 buffer[GHASH_DIGEST_SIZE]; int bytes; - struct shash_desc fallback_desc; }; -static int p8_ghash_init_tfm(struct crypto_tfm *tfm) -{ - const char *alg = "ghash-generic"; - struct crypto_shash *fallback; - struct crypto_shash *shash_tfm = __crypto_shash_cast(tfm); - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm); - - fallback = crypto_alloc_shash(alg, 0, CRYPTO_ALG_NEED_FALLBACK); - if (IS_ERR(fallback)) { - printk(KERN_ERR - "Failed to allocate transformation for '%s': %ld\n", - alg, PTR_ERR(fallback)); - return PTR_ERR(fallback); - } - - crypto_shash_set_flags(fallback, - crypto_shash_get_flags((struct crypto_shash - *) tfm)); - - /* Check if the descsize defined in the algorithm is still enough. */ - if (shash_tfm->descsize < sizeof(struct p8_ghash_desc_ctx) - + crypto_shash_descsize(fallback)) { - printk(KERN_ERR - "Desc size of the fallback implementation (%s) does not match the expected value: %lu vs %u\n", - alg, - shash_tfm->descsize - sizeof(struct p8_ghash_desc_ctx), - crypto_shash_descsize(fallback)); - return -EINVAL; - } - ctx->fallback = fallback; - - return 0; -} - -static void p8_ghash_exit_tfm(struct crypto_tfm *tfm) -{ - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm); - - if (ctx->fallback) { - crypto_free_shash(ctx->fallback); - ctx->fallback = NULL; - } -} - static int p8_ghash_init(struct shash_desc *desc) { - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); dctx->bytes = 0; memset(dctx->shash, 0, GHASH_DIGEST_SIZE); - dctx->fallback_desc.tfm = ctx->fallback; - dctx->fallback_desc.flags = desc->flags; - return crypto_shash_init(&dctx->fallback_desc); + return 0; } static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key, @@ -122,7 +68,53 @@ static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key, gcm_init_p8(ctx->htable, (const u64 *) key); pagefault_enable(); preempt_enable(); - return crypto_shash_setkey(ctx->fallback, key, keylen); + + memcpy(&ctx->key, key, GHASH_BLOCK_SIZE); + + return 0; +} + +static inline void __ghash_block(struct p8_ghash_ctx *ctx, + struct p8_ghash_desc_ctx *dctx) +{ + if (!IN_INTERRUPT) { + preempt_disable(); + pagefault_disable(); + enable_kernel_altivec(); + enable_kernel_vsx(); + enable_kernel_fp(); + gcm_ghash_p8(dctx->shash, ctx->htable, + dctx->buffer, GHASH_DIGEST_SIZE); + pagefault_enable(); + preempt_enable(); + } else { + crypto_xor((u8 *)dctx->shash, dctx->buffer, GHASH_BLOCK_SIZE); + gf128mul_lle((be128 *)dctx->shash, &ctx->key); + } +} + +static inline void __ghash_blocks(struct p8_ghash_ctx *ctx, + struct p8_ghash_desc_ctx *dctx, + const u8 *src, unsigned int srclen) +{ + if (!IN_INTERRUPT) { + preempt_disable(); + pagefault_disable(); + enable_kernel_altivec(); + enable_kernel_vsx(); + enable_kernel_fp(); + gcm_ghash_p8(dctx->shash, ctx->htable, + src, srclen); + pagefault_enable(); + preempt_enable(); + } else { + while (srclen >= GHASH_BLOCK_SIZE) { + crypto_xor((u8 *)dctx->shash, src, GHASH_BLOCK_SIZE); + gf128mul_lle((be128 *)dctx->shash, &ctx->key); + srclen -= GHASH_BLOCK_SIZE; + src += GHASH_BLOCK_SIZE; + } + } } static int p8_ghash_update(struct shash_desc *desc, @@ -132,51 +124,33 @@ static int p8_ghash_update(struct shash_desc *desc, struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); - if (IN_INTERRUPT) { - return crypto_shash_update(&dctx->fallback_desc, src, - srclen); - } else { - if (dctx->bytes) { - if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) { - memcpy(dctx->buffer + dctx->bytes, src, - srclen); - dctx->bytes += srclen; - return 0; - } + if (dctx->bytes) { + if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) { memcpy(dctx->buffer + dctx->bytes, src, - GHASH_DIGEST_SIZE - dctx->bytes); - preempt_disable(); - pagefault_disable(); - enable_kernel_altivec(); - enable_kernel_vsx(); - enable_kernel_fp(); - gcm_ghash_p8(dctx->shash, ctx->htable, - dctx->buffer, GHASH_DIGEST_SIZE); - pagefault_enable(); - preempt_enable(); - src += GHASH_DIGEST_SIZE - dctx->bytes; - srclen -= GHASH_DIGEST_SIZE - dctx->bytes; - dctx->bytes = 0; - } - len = srclen & ~(GHASH_DIGEST_SIZE - 1); - if (len) { - preempt_disable(); - pagefault_disable(); - enable_kernel_altivec(); - enable_kernel_vsx(); - enable_kernel_fp(); - gcm_ghash_p8(dctx->shash, ctx->htable, src, len); - pagefault_enable(); - preempt_enable(); - src += len; - srclen -= len; - } - if (srclen) { - memcpy(dctx->buffer, src, srclen); - dctx->bytes = srclen; + srclen); + dctx->bytes += srclen; + return 0; } - return 0; + memcpy(dctx->buffer + dctx->bytes, src, + GHASH_DIGEST_SIZE - dctx->bytes); + + __ghash_block(ctx, dctx); + + src += GHASH_DIGEST_SIZE - dctx->bytes; + srclen -= GHASH_DIGEST_SIZE - dctx->bytes; + dctx->bytes = 0; + } + len = srclen & ~(GHASH_DIGEST_SIZE - 1); + if (len) { + __ghash_blocks(ctx, dctx, src, len); + src += len; + srclen -= len; } + if (srclen) { + memcpy(dctx->buffer, src, srclen); + dctx->bytes = srclen; + } + return 0; } static int p8_ghash_final(struct shash_desc *desc, u8 *out) @@ -185,26 +159,14 @@ static int p8_ghash_final(struct shash_desc *desc, u8 *out) struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); - if (IN_INTERRUPT) { - return crypto_shash_final(&dctx->fallback_desc, out); - } else { - if (dctx->bytes) { - for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++) - dctx->buffer[i] = 0; - preempt_disable(); - pagefault_disable(); - enable_kernel_altivec(); - enable_kernel_vsx(); - enable_kernel_fp(); - gcm_ghash_p8(dctx->shash, ctx->htable, - dctx->buffer, GHASH_DIGEST_SIZE); - pagefault_enable(); - preempt_enable(); - dctx->bytes = 0; - } - memcpy(out, dctx->shash, GHASH_DIGEST_SIZE); - return 0; + if (dctx->bytes) { + for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++) + dctx->buffer[i] = 0; + __ghash_block(ctx, dctx); + dctx->bytes = 0; } + memcpy(out, dctx->shash, GHASH_DIGEST_SIZE); + return 0; } struct shash_alg p8_ghash_alg = { @@ -219,11 +181,9 @@ struct shash_alg p8_ghash_alg = { .cra_name = "ghash", .cra_driver_name = "p8_ghash", .cra_priority = 1000, - .cra_flags = CRYPTO_ALG_TYPE_SHASH | CRYPTO_ALG_NEED_FALLBACK, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, .cra_blocksize = GHASH_BLOCK_SIZE, .cra_ctxsize = sizeof(struct p8_ghash_ctx), .cra_module = THIS_MODULE, - .cra_init = p8_ghash_init_tfm, - .cra_exit = p8_ghash_exit_tfm, }, }; diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c index af24c5bf32d6..8aa3ccf42e55 100644 --- a/drivers/dma/at_xdmac.c +++ b/drivers/dma/at_xdmac.c @@ -1608,7 +1608,11 @@ static void at_xdmac_tasklet(unsigned long data) struct at_xdmac_desc, xfer_node); dev_vdbg(chan2dev(&atchan->chan), "%s: desc 0x%p\n", __func__, desc); - BUG_ON(!desc->active_xfer); + if (!desc->active_xfer) { + dev_err(chan2dev(&atchan->chan), "Xfer not active: exiting"); + spin_unlock_bh(&atchan->lock); + return; + } txd = &desc->tx_dma_desc; diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index e4890dd4fefd..38fb212e58ee 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -1616,6 +1616,16 @@ static int arizona_extcon_remove(struct platform_device *pdev) struct arizona_extcon_info *info = platform_get_drvdata(pdev); struct arizona *arizona = info->arizona; int jack_irq_rise, jack_irq_fall; + bool change; + + regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1, + ARIZONA_MICD_ENA, 0, + &change); + + if (change) { + regulator_disable(info->micvdd); + pm_runtime_put(info->dev); + } gpiod_put(info->micd_pol_gpio); diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/drivers/gpu/drm/gma500/cdv_intel_lvds.c index 211069b2b951..010fe3fc5ecf 100644 --- a/drivers/gpu/drm/gma500/cdv_intel_lvds.c +++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c @@ -620,6 +620,9 @@ void cdv_intel_lvds_init(struct drm_device *dev, int pipe; u8 pin; + if (!dev_priv->lvds_enabled_in_vbt) + return; + pin = GMBUS_PORT_PANEL; if (!lvds_is_present_in_vbt(dev, &pin)) { DRM_DEBUG_KMS("LVDS is not present in VBT\n"); diff --git a/drivers/gpu/drm/gma500/intel_bios.c b/drivers/gpu/drm/gma500/intel_bios.c index 63bde4e86c6a..e019ea271ffc 100644 --- a/drivers/gpu/drm/gma500/intel_bios.c +++ b/drivers/gpu/drm/gma500/intel_bios.c @@ -436,6 +436,9 @@ parse_driver_features(struct drm_psb_private *dev_priv, if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP) dev_priv->edp.support = 1; + dev_priv->lvds_enabled_in_vbt = driver->lvds_config != 0; + DRM_DEBUG_KMS("LVDS VBT config bits: 0x%x\n", driver->lvds_config); + /* This bit means to use 96Mhz for DPLL_A or not */ if (driver->primary_lfp_id) dev_priv->dplla_96mhz = true; diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h index e21726ecac32..4c7cc8a5edbd 100644 --- a/drivers/gpu/drm/gma500/psb_drv.h +++ b/drivers/gpu/drm/gma500/psb_drv.h @@ -536,6 +536,7 @@ struct drm_psb_private { int lvds_ssc_freq; bool is_lvds_on; bool is_mipi_on; + bool lvds_enabled_in_vbt; u32 mipi_ctrl_display; unsigned int core_freq; diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h index 6b6224dbd5bb..943eb2971c3e 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h @@ -37,6 +37,7 @@ struct nvkm_i2c_bus { struct mutex mutex; struct list_head head; struct i2c_adapter i2c; + u8 enabled; }; int nvkm_i2c_bus_acquire(struct nvkm_i2c_bus *); @@ -56,6 +57,7 @@ struct nvkm_i2c_aux { struct mutex mutex; struct list_head head; struct i2c_adapter i2c; + u8 enabled; u32 intr; }; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c index f0851d57df2f..f89692cb2bc7 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c @@ -105,9 +105,15 @@ nvkm_i2c_aux_acquire(struct nvkm_i2c_aux *aux) { struct nvkm_i2c_pad *pad = aux->pad; int ret; + AUX_TRACE(aux, "acquire"); mutex_lock(&aux->mutex); - ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX); + + if (aux->enabled) + ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX); + else + ret = -EIO; + if (ret) mutex_unlock(&aux->mutex); return ret; @@ -141,6 +147,24 @@ nvkm_i2c_aux_del(struct nvkm_i2c_aux **paux) } } +void +nvkm_i2c_aux_init(struct nvkm_i2c_aux *aux) +{ + AUX_TRACE(aux, "init"); + mutex_lock(&aux->mutex); + aux->enabled = true; + mutex_unlock(&aux->mutex); +} + +void +nvkm_i2c_aux_fini(struct nvkm_i2c_aux *aux) +{ + AUX_TRACE(aux, "fini"); + mutex_lock(&aux->mutex); + aux->enabled = false; + mutex_unlock(&aux->mutex); +} + int nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *func, struct nvkm_i2c_pad *pad, int id, diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h index 35a892e4a4c3..04885c097a32 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h @@ -14,6 +14,8 @@ int nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *, int nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *, int id, struct nvkm_i2c_aux **); void nvkm_i2c_aux_del(struct nvkm_i2c_aux **); +void nvkm_i2c_aux_init(struct nvkm_i2c_aux *); +void nvkm_i2c_aux_fini(struct nvkm_i2c_aux *); int nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *, bool retry, u8 type, u32 addr, u8 *data, u8 size); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c index 243a71ff0a0d..2acc5cbcb6fb 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c @@ -160,8 +160,18 @@ nvkm_i2c_fini(struct nvkm_subdev *subdev, bool suspend) { struct nvkm_i2c *i2c = nvkm_i2c(subdev); struct nvkm_i2c_pad *pad; + struct nvkm_i2c_bus *bus; + struct nvkm_i2c_aux *aux; u32 mask; + list_for_each_entry(aux, &i2c->aux, head) { + nvkm_i2c_aux_fini(aux); + } + + list_for_each_entry(bus, &i2c->bus, head) { + nvkm_i2c_bus_fini(bus); + } + if ((mask = (1 << i2c->func->aux) - 1), i2c->func->aux_stat) { i2c->func->aux_mask(i2c, NVKM_I2C_ANY, mask, 0); i2c->func->aux_stat(i2c, &mask, &mask, &mask, &mask); @@ -180,6 +190,7 @@ nvkm_i2c_init(struct nvkm_subdev *subdev) struct nvkm_i2c *i2c = nvkm_i2c(subdev); struct nvkm_i2c_bus *bus; struct nvkm_i2c_pad *pad; + struct nvkm_i2c_aux *aux; list_for_each_entry(pad, &i2c->pad, head) { nvkm_i2c_pad_init(pad); @@ -189,6 +200,10 @@ nvkm_i2c_init(struct nvkm_subdev *subdev) nvkm_i2c_bus_init(bus); } + list_for_each_entry(aux, &i2c->aux, head) { + nvkm_i2c_aux_init(aux); + } + return 0; } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c index 807a2b67bd64..ed50cc3736b9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c @@ -110,6 +110,19 @@ nvkm_i2c_bus_init(struct nvkm_i2c_bus *bus) BUS_TRACE(bus, "init"); if (bus->func->init) bus->func->init(bus); + + mutex_lock(&bus->mutex); + bus->enabled = true; + mutex_unlock(&bus->mutex); +} + +void +nvkm_i2c_bus_fini(struct nvkm_i2c_bus *bus) +{ + BUS_TRACE(bus, "fini"); + mutex_lock(&bus->mutex); + bus->enabled = false; + mutex_unlock(&bus->mutex); } void @@ -126,9 +139,15 @@ nvkm_i2c_bus_acquire(struct nvkm_i2c_bus *bus) { struct nvkm_i2c_pad *pad = bus->pad; int ret; + BUS_TRACE(bus, "acquire"); mutex_lock(&bus->mutex); - ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_I2C); + + if (bus->enabled) + ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_I2C); + else + ret = -EIO; + if (ret) mutex_unlock(&bus->mutex); return ret; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h index e1be14c23e54..2fdb1b8e7164 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h @@ -17,6 +17,7 @@ int nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *, int id, struct nvkm_i2c_bus **); void nvkm_i2c_bus_del(struct nvkm_i2c_bus **); void nvkm_i2c_bus_init(struct nvkm_i2c_bus *); +void nvkm_i2c_bus_fini(struct nvkm_i2c_bus *); int nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *, struct i2c_msg *, int); diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 4564ecf71181..9b2b41d683de 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -200,13 +200,14 @@ static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) * Add a usage to the temporary parser table. */ -static int hid_add_usage(struct hid_parser *parser, unsigned usage) +static int hid_add_usage(struct hid_parser *parser, unsigned usage, u8 size) { if (parser->local.usage_index >= HID_MAX_USAGES) { hid_err(parser->device, "usage index exceeded\n"); return -1; } parser->local.usage[parser->local.usage_index] = usage; + parser->local.usage_size[parser->local.usage_index] = size; parser->local.collection_index[parser->local.usage_index] = parser->collection_stack_ptr ? parser->collection_stack[parser->collection_stack_ptr - 1] : 0; @@ -463,10 +464,7 @@ static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) return 0; } - if (item->size <= 2) - data = (parser->global.usage_page << 16) + data; - - return hid_add_usage(parser, data); + return hid_add_usage(parser, data, item->size); case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: @@ -475,9 +473,6 @@ static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) return 0; } - if (item->size <= 2) - data = (parser->global.usage_page << 16) + data; - parser->local.usage_minimum = data; return 0; @@ -488,9 +483,6 @@ static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) return 0; } - if (item->size <= 2) - data = (parser->global.usage_page << 16) + data; - count = data - parser->local.usage_minimum; if (count + parser->local.usage_index >= HID_MAX_USAGES) { /* @@ -510,7 +502,7 @@ static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) } for (n = parser->local.usage_minimum; n <= data; n++) - if (hid_add_usage(parser, n)) { + if (hid_add_usage(parser, n, item->size)) { dbg_hid("hid_add_usage failed\n"); return -1; } @@ -524,6 +516,22 @@ static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) return 0; } +/* + * Concatenate Usage Pages into Usages where relevant: + * As per specification, 6.2.2.8: "When the parser encounters a main item it + * concatenates the last declared Usage Page with a Usage to form a complete + * usage value." + */ + +static void hid_concatenate_usage_page(struct hid_parser *parser) +{ + int i; + + for (i = 0; i < parser->local.usage_index; i++) + if (parser->local.usage_size[i] <= 2) + parser->local.usage[i] += parser->global.usage_page << 16; +} + /* * Process a main item. */ @@ -533,6 +541,8 @@ static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) __u32 data; int ret; + hid_concatenate_usage_page(parser); + data = item_udata(item); switch (item->tag) { @@ -746,6 +756,8 @@ static int hid_scan_main(struct hid_parser *parser, struct hid_item *item) __u32 data; int i; + hid_concatenate_usage_page(parser); + data = item_udata(item); switch (item->tag) { diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 5fd97860aec4..3666e5064d0d 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -414,13 +414,16 @@ static int hidpp_root_get_feature(struct hidpp_device *hidpp, u16 feature, static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp) { + const u8 ping_byte = 0x5a; + u8 ping_data[3] = { 0, 0, ping_byte }; struct hidpp_report response; int ret; - ret = hidpp_send_fap_command_sync(hidpp, + ret = hidpp_send_rap_command_sync(hidpp, + REPORT_ID_HIDPP_SHORT, HIDPP_PAGE_ROOT_IDX, CMD_ROOT_GET_PROTOCOL_VERSION, - NULL, 0, &response); + ping_data, sizeof(ping_data), &response); if (ret == HIDPP_ERROR_INVALID_SUBID) { hidpp->protocol_major = 1; @@ -440,8 +443,14 @@ static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp) if (ret) return ret; - hidpp->protocol_major = response.fap.params[0]; - hidpp->protocol_minor = response.fap.params[1]; + if (response.rap.params[2] != ping_byte) { + hid_err(hidpp->hid_dev, "%s: ping mismatch 0x%02x != 0x%02x\n", + __func__, response.rap.params[2], ping_byte); + return -EPROTO; + } + + hidpp->protocol_major = response.rap.params[0]; + hidpp->protocol_minor = response.rap.params[1]; return ret; } diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c index facd05cda26d..e8c089886427 100644 --- a/drivers/hwmon/f71805f.c +++ b/drivers/hwmon/f71805f.c @@ -96,17 +96,23 @@ superio_select(int base, int ld) outb(ld, base + 1); } -static inline void +static inline int superio_enter(int base) { + if (!request_muxed_region(base, 2, DRVNAME)) + return -EBUSY; + outb(0x87, base); outb(0x87, base); + + return 0; } static inline void superio_exit(int base) { outb(0xaa, base); + release_region(base, 2); } /* @@ -1561,7 +1567,7 @@ exit: static int __init f71805f_find(int sioaddr, unsigned short *address, struct f71805f_sio_data *sio_data) { - int err = -ENODEV; + int err; u16 devid; static const char * const names[] = { @@ -1569,8 +1575,11 @@ static int __init f71805f_find(int sioaddr, unsigned short *address, "F71872F/FG or F71806F/FG", }; - superio_enter(sioaddr); + err = superio_enter(sioaddr); + if (err) + return err; + err = -ENODEV; devid = superio_inw(sioaddr, SIO_REG_MANID); if (devid != SIO_FINTEK_ID) goto exit; diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c index cb9fdd37bd0d..2b5b8c3de8fc 100644 --- a/drivers/hwmon/pc87427.c +++ b/drivers/hwmon/pc87427.c @@ -106,6 +106,13 @@ static const char *logdev_str[2] = { DRVNAME " FMC", DRVNAME " HMC" }; #define LD_IN 1 #define LD_TEMP 1 +static inline int superio_enter(int sioaddr) +{ + if (!request_muxed_region(sioaddr, 2, DRVNAME)) + return -EBUSY; + return 0; +} + static inline void superio_outb(int sioaddr, int reg, int val) { outb(reg, sioaddr); @@ -122,6 +129,7 @@ static inline void superio_exit(int sioaddr) { outb(0x02, sioaddr); outb(0x02, sioaddr + 1); + release_region(sioaddr, 2); } /* @@ -1220,7 +1228,11 @@ static int __init pc87427_find(int sioaddr, struct pc87427_sio_data *sio_data) { u16 val; u8 cfg, cfg_b; - int i, err = 0; + int i, err; + + err = superio_enter(sioaddr); + if (err) + return err; /* Identify device */ val = force_id ? force_id : superio_inb(sioaddr, SIOREG_DEVID); diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c index 6bd200756560..cbdb5c4991ae 100644 --- a/drivers/hwmon/smsc47b397.c +++ b/drivers/hwmon/smsc47b397.c @@ -72,14 +72,19 @@ static inline void superio_select(int ld) superio_outb(0x07, ld); } -static inline void superio_enter(void) +static inline int superio_enter(void) { + if (!request_muxed_region(REG, 2, DRVNAME)) + return -EBUSY; + outb(0x55, REG); + return 0; } static inline void superio_exit(void) { outb(0xAA, REG); + release_region(REG, 2); } #define SUPERIO_REG_DEVID 0x20 @@ -300,8 +305,12 @@ static int __init smsc47b397_find(void) u8 id, rev; char *name; unsigned short addr; + int err; + + err = superio_enter(); + if (err) + return err; - superio_enter(); id = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID); switch (id) { diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 5d323186d2c1..d24df0c50bea 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -73,16 +73,21 @@ superio_inb(int reg) /* logical device for fans is 0x0A */ #define superio_select() superio_outb(0x07, 0x0A) -static inline void +static inline int superio_enter(void) { + if (!request_muxed_region(REG, 2, DRVNAME)) + return -EBUSY; + outb(0x55, REG); + return 0; } static inline void superio_exit(void) { outb(0xAA, REG); + release_region(REG, 2); } #define SUPERIO_REG_ACT 0x30 @@ -531,8 +536,12 @@ static int __init smsc47m1_find(struct smsc47m1_sio_data *sio_data) { u8 val; unsigned short addr; + int err; + + err = superio_enter(); + if (err) + return err; - superio_enter(); val = force_id ? force_id : superio_inb(SUPERIO_REG_DEVID); /* @@ -608,13 +617,14 @@ static int __init smsc47m1_find(struct smsc47m1_sio_data *sio_data) static void smsc47m1_restore(const struct smsc47m1_sio_data *sio_data) { if ((sio_data->activate & 0x01) == 0) { - superio_enter(); - superio_select(); - - pr_info("Disabling device\n"); - superio_outb(SUPERIO_REG_ACT, sio_data->activate); - - superio_exit(); + if (!superio_enter()) { + superio_select(); + pr_info("Disabling device\n"); + superio_outb(SUPERIO_REG_ACT, sio_data->activate); + superio_exit(); + } else { + pr_warn("Failed to disable device\n"); + } } } diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c index 3a6bfa51cb94..95d5e8ec8b7f 100644 --- a/drivers/hwmon/vt1211.c +++ b/drivers/hwmon/vt1211.c @@ -226,15 +226,21 @@ static inline void superio_select(int sio_cip, int ldn) outb(ldn, sio_cip + 1); } -static inline void superio_enter(int sio_cip) +static inline int superio_enter(int sio_cip) { + if (!request_muxed_region(sio_cip, 2, DRVNAME)) + return -EBUSY; + outb(0x87, sio_cip); outb(0x87, sio_cip); + + return 0; } static inline void superio_exit(int sio_cip) { outb(0xaa, sio_cip); + release_region(sio_cip, 2); } /* --------------------------------------------------------------------- @@ -1282,11 +1288,14 @@ EXIT: static int __init vt1211_find(int sio_cip, unsigned short *address) { - int err = -ENODEV; + int err; int devid; - superio_enter(sio_cip); + err = superio_enter(sio_cip); + if (err) + return err; + err = -ENODEV; devid = force_id ? force_id : superio_inb(sio_cip, SIO_VT1211_DEVID); if (devid != SIO_VT1211_ID) goto EXIT; diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c index 9d9e47eb0842..7d5c53a1abe4 100644 --- a/drivers/hwtracing/intel_th/msu.c +++ b/drivers/hwtracing/intel_th/msu.c @@ -90,6 +90,7 @@ struct msc_iter { * @reg_base: register window base address * @thdev: intel_th_device pointer * @win_list: list of windows in multiblock mode + * @single_sgt: single mode buffer * @nr_pages: total number of pages allocated for this buffer * @single_sz: amount of data in single mode * @single_wrap: single mode wrap occurred @@ -110,6 +111,7 @@ struct msc { struct intel_th_device *thdev; struct list_head win_list; + struct sg_table single_sgt; unsigned long nr_pages; unsigned long single_sz; unsigned int single_wrap : 1; @@ -610,22 +612,45 @@ static void intel_th_msc_deactivate(struct intel_th_device *thdev) */ static int msc_buffer_contig_alloc(struct msc *msc, unsigned long size) { + unsigned long nr_pages = size >> PAGE_SHIFT; unsigned int order = get_order(size); struct page *page; + int ret; if (!size) return 0; + ret = sg_alloc_table(&msc->single_sgt, 1, GFP_KERNEL); + if (ret) + goto err_out; + + ret = -ENOMEM; page = alloc_pages(GFP_KERNEL | __GFP_ZERO, order); if (!page) - return -ENOMEM; + goto err_free_sgt; split_page(page, order); - msc->nr_pages = size >> PAGE_SHIFT; + sg_set_buf(msc->single_sgt.sgl, page_address(page), size); + + ret = dma_map_sg(msc_dev(msc)->parent->parent, msc->single_sgt.sgl, 1, + DMA_FROM_DEVICE); + if (ret < 0) + goto err_free_pages; + + msc->nr_pages = nr_pages; msc->base = page_address(page); - msc->base_addr = page_to_phys(page); + msc->base_addr = sg_dma_address(msc->single_sgt.sgl); return 0; + +err_free_pages: + __free_pages(page, order); + +err_free_sgt: + sg_free_table(&msc->single_sgt); + +err_out: + return ret; } /** @@ -636,6 +661,10 @@ static void msc_buffer_contig_free(struct msc *msc) { unsigned long off; + dma_unmap_sg(msc_dev(msc)->parent->parent, msc->single_sgt.sgl, + 1, DMA_FROM_DEVICE); + sg_free_table(&msc->single_sgt); + for (off = 0; off < msc->nr_pages << PAGE_SHIFT; off += PAGE_SIZE) { struct page *page = virt_to_page(msc->base + off); diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index b6cc841de79d..e880702a3784 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -210,8 +210,8 @@ stm_output_disclaim(struct stm_device *stm, struct stm_output *output) bitmap_release_region(&master->chan_map[0], output->channel, ilog2(output->nr_chans)); - output->nr_chans = 0; master->nr_free += output->nr_chans; + output->nr_chans = 0; } /* diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c index a1d072ecb717..30f200ad6b97 100644 --- a/drivers/iio/adc/ad_sigma_delta.c +++ b/drivers/iio/adc/ad_sigma_delta.c @@ -62,7 +62,7 @@ int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg, struct spi_transfer t = { .tx_buf = data, .len = size + 1, - .cs_change = sigma_delta->bus_locked, + .cs_change = sigma_delta->keep_cs_asserted, }; struct spi_message m; int ret; @@ -217,6 +217,7 @@ static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta, spi_bus_lock(sigma_delta->spi->master); sigma_delta->bus_locked = true; + sigma_delta->keep_cs_asserted = true; reinit_completion(&sigma_delta->completion); ret = ad_sigma_delta_set_mode(sigma_delta, mode); @@ -234,9 +235,10 @@ static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta, ret = 0; } out: + sigma_delta->keep_cs_asserted = false; + ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE); sigma_delta->bus_locked = false; spi_bus_unlock(sigma_delta->spi->master); - ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE); return ret; } @@ -288,6 +290,7 @@ int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev, spi_bus_lock(sigma_delta->spi->master); sigma_delta->bus_locked = true; + sigma_delta->keep_cs_asserted = true; reinit_completion(&sigma_delta->completion); ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_SINGLE); @@ -297,9 +300,6 @@ int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev, ret = wait_for_completion_interruptible_timeout( &sigma_delta->completion, HZ); - sigma_delta->bus_locked = false; - spi_bus_unlock(sigma_delta->spi->master); - if (ret == 0) ret = -EIO; if (ret < 0) @@ -315,7 +315,10 @@ out: sigma_delta->irq_dis = true; } + sigma_delta->keep_cs_asserted = false; ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE); + sigma_delta->bus_locked = false; + spi_bus_unlock(sigma_delta->spi->master); mutex_unlock(&indio_dev->mlock); if (ret) @@ -352,6 +355,8 @@ static int ad_sd_buffer_postenable(struct iio_dev *indio_dev) spi_bus_lock(sigma_delta->spi->master); sigma_delta->bus_locked = true; + sigma_delta->keep_cs_asserted = true; + ret = ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_CONTINUOUS); if (ret) goto err_unlock; @@ -380,6 +385,7 @@ static int ad_sd_buffer_postdisable(struct iio_dev *indio_dev) sigma_delta->irq_dis = true; } + sigma_delta->keep_cs_asserted = false; ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE); sigma_delta->bus_locked = false; diff --git a/drivers/iio/common/ssp_sensors/ssp_iio.c b/drivers/iio/common/ssp_sensors/ssp_iio.c index a3ae165f8d9f..16180e6321bd 100644 --- a/drivers/iio/common/ssp_sensors/ssp_iio.c +++ b/drivers/iio/common/ssp_sensors/ssp_iio.c @@ -80,7 +80,7 @@ int ssp_common_process_data(struct iio_dev *indio_dev, void *buf, unsigned int len, int64_t timestamp) { __le32 time; - int64_t calculated_time; + int64_t calculated_time = 0; struct ssp_sensor_data *spd = iio_priv(indio_dev); if (indio_dev->scan_bytes == 0) diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index c9cffced00ca..54fd4d81a3f1 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -360,6 +360,8 @@ static struct sk_buff *get_skb(struct sk_buff *skb, int len, gfp_t gfp) skb_reset_transport_header(skb); } else { skb = alloc_skb(len, gfp); + if (!skb) + return NULL; } t4_set_arp_err_handler(skb, NULL, NULL); return skb; diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 9305964250ac..c4eb293b1524 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -91,7 +91,6 @@ static inline u32 smmu_readl(struct tegra_smmu *smmu, unsigned long offset) #define SMMU_TLB_FLUSH_VA_MATCH_ALL (0 << 0) #define SMMU_TLB_FLUSH_VA_MATCH_SECTION (2 << 0) #define SMMU_TLB_FLUSH_VA_MATCH_GROUP (3 << 0) -#define SMMU_TLB_FLUSH_ASID(x) (((x) & 0x7f) << 24) #define SMMU_TLB_FLUSH_VA_SECTION(addr) ((((addr) & 0xffc00000) >> 12) | \ SMMU_TLB_FLUSH_VA_MATCH_SECTION) #define SMMU_TLB_FLUSH_VA_GROUP(addr) ((((addr) & 0xffffc000) >> 12) | \ @@ -194,8 +193,12 @@ static inline void smmu_flush_tlb_asid(struct tegra_smmu *smmu, { u32 value; - value = SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_ASID(asid) | - SMMU_TLB_FLUSH_VA_MATCH_ALL; + if (smmu->soc->num_asids == 4) + value = (asid & 0x3) << 29; + else + value = (asid & 0x7f) << 24; + + value |= SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_VA_MATCH_ALL; smmu_writel(smmu, value, SMMU_TLB_FLUSH); } @@ -205,8 +208,12 @@ static inline void smmu_flush_tlb_section(struct tegra_smmu *smmu, { u32 value; - value = SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_ASID(asid) | - SMMU_TLB_FLUSH_VA_SECTION(iova); + if (smmu->soc->num_asids == 4) + value = (asid & 0x3) << 29; + else + value = (asid & 0x7f) << 24; + + value |= SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_VA_SECTION(iova); smmu_writel(smmu, value, SMMU_TLB_FLUSH); } @@ -216,8 +223,12 @@ static inline void smmu_flush_tlb_group(struct tegra_smmu *smmu, { u32 value; - value = SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_ASID(asid) | - SMMU_TLB_FLUSH_VA_GROUP(iova); + if (smmu->soc->num_asids == 4) + value = (asid & 0x3) << 29; + else + value = (asid & 0x7f) << 24; + + value |= SMMU_TLB_FLUSH_ASID_MATCH | SMMU_TLB_FLUSH_VA_GROUP(iova); smmu_writel(smmu, value, SMMU_TLB_FLUSH); } diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c index 16c3390e5d9f..d82ae445c9ee 100644 --- a/drivers/md/bcache/alloc.c +++ b/drivers/md/bcache/alloc.c @@ -324,10 +324,11 @@ static int bch_allocator_thread(void *arg) * possibly issue discards to them, then we add the bucket to * the free list: */ - while (!fifo_empty(&ca->free_inc)) { + while (1) { long bucket; - fifo_pop(&ca->free_inc, bucket); + if (!fifo_pop(&ca->free_inc, bucket)) + break; if (ca->discard) { mutex_unlock(&ca->set->bucket_lock); diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c index 6ed066a0e7c0..6f9db98f2dfd 100644 --- a/drivers/md/bcache/journal.c +++ b/drivers/md/bcache/journal.c @@ -309,6 +309,18 @@ void bch_journal_mark(struct cache_set *c, struct list_head *list) } } +bool is_discard_enabled(struct cache_set *s) +{ + struct cache *ca; + unsigned int i; + + for_each_cache(ca, s, i) + if (ca->discard) + return true; + + return false; +} + int bch_journal_replay(struct cache_set *s, struct list_head *list) { int ret = 0, keys = 0, entries = 0; @@ -322,9 +334,17 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list) list_for_each_entry(i, list, list) { BUG_ON(i->pin && atomic_read(i->pin) != 1); - cache_set_err_on(n != i->j.seq, s, -"bcache: journal entries %llu-%llu missing! (replaying %llu-%llu)", - n, i->j.seq - 1, start, end); + if (n != i->j.seq) { + if (n == start && is_discard_enabled(s)) + pr_info("bcache: journal entries %llu-%llu may be discarded! (replaying %llu-%llu)", + n, i->j.seq - 1, start, end); + else { + pr_err("bcache: journal entries %llu-%llu missing! (replaying %llu-%llu)", + n, i->j.seq - 1, start, end); + ret = -EIO; + goto err; + } + } for (k = i->j.start; k < bset_bkey_last(&i->j); @@ -513,11 +533,11 @@ static void journal_reclaim(struct cache_set *c) ca->sb.nr_this_dev); } - bkey_init(k); - SET_KEY_PTRS(k, n); - - if (n) + if (n) { + bkey_init(k); + SET_KEY_PTRS(k, n); c->journal.blocks_free = c->sb.bucket_size >> c->block_bits; + } out: if (!journal_full(&c->journal)) __closure_wake_up(&c->journal.wait); @@ -641,6 +661,9 @@ static void journal_write_unlocked(struct closure *cl) ca->journal.seq[ca->journal.cur_idx] = w->data->seq; } + /* If KEY_PTRS(k) == 0, this jset gets lost in air */ + BUG_ON(i == 0); + atomic_dec_bug(&fifo_back(&c->journal.pin)); bch_journal_next(&c->journal); journal_reclaim(c); diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index ef28ddfff7c6..02757b90e402 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1355,6 +1355,7 @@ static void cache_set_free(struct closure *cl) bch_btree_cache_free(c); bch_journal_free(c); + mutex_lock(&bch_register_lock); for_each_cache(ca, c, i) if (ca) { ca->set = NULL; @@ -1377,7 +1378,6 @@ static void cache_set_free(struct closure *cl) mempool_destroy(c->search); kfree(c->devices); - mutex_lock(&bch_register_lock); list_del(&c->list); mutex_unlock(&bch_register_lock); @@ -1558,7 +1558,7 @@ err: return NULL; } -static void run_cache_set(struct cache_set *c) +static int run_cache_set(struct cache_set *c) { const char *err = "cannot allocate memory"; struct cached_dev *dc, *t; @@ -1650,7 +1650,9 @@ static void run_cache_set(struct cache_set *c) if (j->version < BCACHE_JSET_VERSION_UUID) __uuid_write(c); - bch_journal_replay(c, &journal); + err = "bcache: replay journal failed"; + if (bch_journal_replay(c, &journal)) + goto err; } else { pr_notice("invalidating existing data"); @@ -1718,11 +1720,13 @@ static void run_cache_set(struct cache_set *c) flash_devs_run(c); set_bit(CACHE_SET_RUNNING, &c->flags); - return; + return 0; err: closure_sync(&cl); /* XXX: test this, it's broken */ bch_cache_set_error(c, "%s", err); + + return -EIO; } static bool can_attach_cache(struct cache *ca, struct cache_set *c) @@ -1786,8 +1790,11 @@ found: ca->set->cache[ca->sb.nr_this_dev] = ca; c->cache_by_alloc[c->caches_loaded++] = ca; - if (c->caches_loaded == c->sb.nr_in_set) - run_cache_set(c); + if (c->caches_loaded == c->sb.nr_in_set) { + err = "failed to run cache set"; + if (run_cache_set(c) < 0) + goto err; + } return NULL; err: diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c index b4c356a21123..e789a4aae4e7 100644 --- a/drivers/md/dm-delay.c +++ b/drivers/md/dm-delay.c @@ -222,7 +222,8 @@ static void delay_dtr(struct dm_target *ti) { struct delay_c *dc = ti->private; - destroy_workqueue(dc->kdelayd_wq); + if (dc->kdelayd_wq) + destroy_workqueue(dc->kdelayd_wq); dm_put_device(ti, dc->dev_read); diff --git a/drivers/md/md.c b/drivers/md/md.c index 07f307402351..f71cca28ddda 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2690,8 +2690,10 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len) err = 0; } } else if (cmd_match(buf, "re-add")) { - if (test_bit(Faulty, &rdev->flags) && (rdev->raid_disk == -1) && - rdev->saved_raid_disk >= 0) { + if (!rdev->mddev->pers) + err = -EINVAL; + else if (test_bit(Faulty, &rdev->flags) && (rdev->raid_disk == -1) && + rdev->saved_raid_disk >= 0) { /* clear_bit is performed _after_ all the devices * have their local Faulty bit cleared. If any writes * happen in the meantime in the local node, they diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 17517889d46b..764e0e155ae2 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3861,7 +3861,7 @@ static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh, /* now write out any block on a failed drive, * or P or Q if they were recomputed */ - BUG_ON(s->uptodate < disks - 1); /* We don't need Q to recover */ + dev = NULL; if (s->failed == 2) { dev = &sh->dev[s->failed_num[1]]; s->locked++; @@ -3886,6 +3886,14 @@ static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh, set_bit(R5_LOCKED, &dev->flags); set_bit(R5_Wantwrite, &dev->flags); } + if (WARN_ONCE(dev && !test_bit(R5_UPTODATE, &dev->flags), + "%s: disk%td not up to date\n", + mdname(conf->mddev), + dev - (struct r5dev *) &sh->dev)) { + clear_bit(R5_LOCKED, &dev->flags); + clear_bit(R5_Wantwrite, &dev->flags); + s->locked--; + } clear_bit(STRIPE_DEGRADED, &sh->state); set_bit(STRIPE_INSYNC, &sh->state); @@ -3897,15 +3905,26 @@ static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh, case check_state_check_result: sh->check_state = check_state_idle; - if (s->failed > 1) - break; /* handle a successful check operation, if parity is correct * we are done. Otherwise update the mismatch count and repair * parity if !MD_RECOVERY_CHECK */ if (sh->ops.zero_sum_result == 0) { - /* Any parity checked was correct */ - set_bit(STRIPE_INSYNC, &sh->state); + /* both parities are correct */ + if (!s->failed) + set_bit(STRIPE_INSYNC, &sh->state); + else { + /* in contrast to the raid5 case we can validate + * parity, but still have a failure to write + * back + */ + sh->check_state = check_state_compute_result; + /* Returning at this point means that we may go + * off and bring p and/or q uptodate again so + * we make sure to check zero_sum_result again + * to verify if p or q need writeback + */ + } } else { atomic64_add(STRIPE_SECTORS, &conf->mddev->resync_mismatches); if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery)) diff --git a/drivers/media/dvb-frontends/m88ds3103.c b/drivers/media/dvb-frontends/m88ds3103.c index d14d075ab1d6..9f0956e739a4 100644 --- a/drivers/media/dvb-frontends/m88ds3103.c +++ b/drivers/media/dvb-frontends/m88ds3103.c @@ -309,6 +309,9 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe) u16 u16tmp, divide_ratio = 0; u32 tuner_frequency, target_mclk; s32 s32tmp; + static const struct reg_sequence reset_buf[] = { + {0x07, 0x80}, {0x07, 0x00} + }; dev_dbg(&client->dev, "delivery_system=%d modulation=%d frequency=%u symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n", @@ -321,11 +324,7 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe) } /* reset */ - ret = regmap_write(dev->regmap, 0x07, 0x80); - if (ret) - goto err; - - ret = regmap_write(dev->regmap, 0x07, 0x00); + ret = regmap_multi_reg_write(dev->regmap, reset_buf, 2); if (ret) goto err; diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c index 49109f4f5bb4..fadec1d70582 100644 --- a/drivers/media/i2c/ov2659.c +++ b/drivers/media/i2c/ov2659.c @@ -1117,8 +1117,10 @@ static int ov2659_set_fmt(struct v4l2_subdev *sd, if (ov2659_formats[index].code == mf->code) break; - if (index < 0) - return -EINVAL; + if (index < 0) { + index = 0; + mf->code = ov2659_formats[index].code; + } mf->colorspace = V4L2_COLORSPACE_SRGB; mf->code = ov2659_formats[index].code; diff --git a/drivers/media/i2c/soc_camera/ov6650.c b/drivers/media/i2c/soc_camera/ov6650.c index 1e4783b51a35..4e19f5e5d8cf 100644 --- a/drivers/media/i2c/soc_camera/ov6650.c +++ b/drivers/media/i2c/soc_camera/ov6650.c @@ -839,9 +839,18 @@ static int ov6650_video_probe(struct i2c_client *client) u8 pidh, pidl, midh, midl; int ret; + priv->clk = v4l2_clk_get(&client->dev, NULL); + if (IS_ERR(priv->clk)) { + ret = PTR_ERR(priv->clk); + dev_err(&client->dev, "v4l2_clk request err: %d\n", ret); + return ret; + } + ret = ov6650_s_power(&priv->subdev, 1); if (ret < 0) - return ret; + goto eclkput; + + msleep(20); /* * check and show product ID and manufacturer ID @@ -876,6 +885,11 @@ static int ov6650_video_probe(struct i2c_client *client) done: ov6650_s_power(&priv->subdev, 0); + if (!ret) + return 0; +eclkput: + v4l2_clk_put(priv->clk); + return ret; } @@ -1033,18 +1047,9 @@ static int ov6650_probe(struct i2c_client *client, priv->code = MEDIA_BUS_FMT_YUYV8_2X8; priv->colorspace = V4L2_COLORSPACE_JPEG; - priv->clk = v4l2_clk_get(&client->dev, NULL); - if (IS_ERR(priv->clk)) { - ret = PTR_ERR(priv->clk); - goto eclkget; - } - ret = ov6650_video_probe(client); - if (ret) { - v4l2_clk_put(priv->clk); -eclkget: + if (ret) v4l2_ctrl_handler_free(&priv->hdl); - } return ret; } diff --git a/drivers/media/pci/saa7146/hexium_gemini.c b/drivers/media/pci/saa7146/hexium_gemini.c index 03cbcd2095c6..d4b3ce828285 100644 --- a/drivers/media/pci/saa7146/hexium_gemini.c +++ b/drivers/media/pci/saa7146/hexium_gemini.c @@ -270,9 +270,8 @@ static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_d /* enable i2c-port pins */ saa7146_write(dev, MC1, (MASK_08 | MASK_24 | MASK_10 | MASK_26)); - hexium->i2c_adapter = (struct i2c_adapter) { - .name = "hexium gemini", - }; + strscpy(hexium->i2c_adapter.name, "hexium gemini", + sizeof(hexium->i2c_adapter.name)); saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480); if (i2c_add_adapter(&hexium->i2c_adapter) < 0) { DEB_S("cannot register i2c-device. skipping.\n"); diff --git a/drivers/media/pci/saa7146/hexium_orion.c b/drivers/media/pci/saa7146/hexium_orion.c index 15f0d66ff78a..214396b1ca73 100644 --- a/drivers/media/pci/saa7146/hexium_orion.c +++ b/drivers/media/pci/saa7146/hexium_orion.c @@ -232,9 +232,8 @@ static int hexium_probe(struct saa7146_dev *dev) saa7146_write(dev, DD1_STREAM_B, 0x00000000); saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26)); - hexium->i2c_adapter = (struct i2c_adapter) { - .name = "hexium orion", - }; + strscpy(hexium->i2c_adapter.name, "hexium orion", + sizeof(hexium->i2c_adapter.name)); saa7146_i2c_adapter_prepare(dev, &hexium->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480); if (i2c_add_adapter(&hexium->i2c_adapter) < 0) { DEB_S("cannot register i2c-device. skipping.\n"); diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index d76511c1c1e3..a4639813cf35 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -1829,6 +1829,9 @@ static int coda_prepare_decode(struct coda_ctx *ctx) /* Clear decode success flag */ coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS); + /* Clear error return value */ + coda_write(dev, 0, CODA_RET_DEC_PIC_ERR_MB); + trace_coda_dec_pic_run(ctx, meta); coda_command_async(ctx, CODA_COMMAND_PIC_RUN); diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c index a84954f1be34..9eb0bc4a8d97 100644 --- a/drivers/media/platform/vivid/vivid-vid-cap.c +++ b/drivers/media/platform/vivid/vivid-vid-cap.c @@ -993,7 +993,7 @@ int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection rect_map_inside(&s->r, &dev->fmt_cap_rect); if (dev->bitmap_cap && (compose->width != s->r.width || compose->height != s->r.height)) { - kfree(dev->bitmap_cap); + vfree(dev->bitmap_cap); dev->bitmap_cap = NULL; } *compose = s->r; diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c index ebc73b034249..51639a3f7abe 100644 --- a/drivers/media/radio/wl128x/fmdrv_common.c +++ b/drivers/media/radio/wl128x/fmdrv_common.c @@ -494,7 +494,8 @@ int fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload, return -EIO; } /* Send response data to caller */ - if (response != NULL && response_len != NULL && evt_hdr->dlen) { + if (response != NULL && response_len != NULL && evt_hdr->dlen && + evt_hdr->dlen <= payload_len) { /* Skip header info and copy only response data */ skb_pull(skb, sizeof(struct fm_event_msg_hdr)); memcpy(response, skb->data, evt_hdr->dlen); @@ -590,6 +591,8 @@ static void fm_irq_handle_flag_getcmd_resp(struct fmdev *fmdev) return; fm_evt_hdr = (void *)skb->data; + if (fm_evt_hdr->dlen > sizeof(fmdev->irq_info.flag)) + return; /* Skip header info and copy only response data */ skb_pull(skb, sizeof(struct fm_event_msg_hdr)); @@ -1315,7 +1318,7 @@ static int load_default_rx_configuration(struct fmdev *fmdev) static int fm_power_up(struct fmdev *fmdev, u8 mode) { u16 payload; - __be16 asic_id, asic_ver; + __be16 asic_id = 0, asic_ver = 0; int resp_len, ret; u8 fw_name[50]; diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c index 7b2fe1b56039..1df23c01ad37 100644 --- a/drivers/media/usb/au0828/au0828-video.c +++ b/drivers/media/usb/au0828/au0828-video.c @@ -711,6 +711,9 @@ static int au0828_analog_stream_enable(struct au0828_dev *d) dprintk(1, "au0828_analog_stream_enable called\n"); + if (test_bit(DEV_DISCONNECTED, &d->dev_state)) + return -ENODEV; + iface = usb_ifnum_to_if(d->usbdev, 0); if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { dprintk(1, "Changing intf#0 to alt 5\n"); @@ -799,9 +802,9 @@ int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) return rc; } + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1); + if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - v4l2_device_call_all(&dev->v4l2_dev, 0, video, - s_stream, 1); dev->vid_timeout_running = 1; mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { @@ -821,10 +824,11 @@ static void au0828_stop_streaming(struct vb2_queue *vq) dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); - if (dev->streaming_users-- == 1) + if (dev->streaming_users-- == 1) { au0828_uninit_isoc(dev); + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); + } - v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); dev->vid_timeout_running = 0; del_timer_sync(&dev->vid_timeout); @@ -853,8 +857,10 @@ void au0828_stop_vbi_streaming(struct vb2_queue *vq) dprintk(1, "au0828_stop_vbi_streaming called %d\n", dev->streaming_users); - if (dev->streaming_users-- == 1) + if (dev->streaming_users-- == 1) { au0828_uninit_isoc(dev); + v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); + } spin_lock_irqsave(&dev->slock, flags); if (dev->isoc_ctl.vbi_buf != NULL) { diff --git a/drivers/media/usb/cpia2/cpia2_v4l.c b/drivers/media/usb/cpia2/cpia2_v4l.c index d793c630f1dd..05e7edb213de 100644 --- a/drivers/media/usb/cpia2/cpia2_v4l.c +++ b/drivers/media/usb/cpia2/cpia2_v4l.c @@ -1248,8 +1248,7 @@ static int __init cpia2_init(void) LOG("%s v%s\n", ABOUT, CPIA_VERSION); check_parameters(); - cpia2_usb_init(); - return 0; + return cpia2_usb_init(); } diff --git a/drivers/media/usb/go7007/go7007-fw.c b/drivers/media/usb/go7007/go7007-fw.c index 60bf5f0644d1..a5efcd4f7b4f 100644 --- a/drivers/media/usb/go7007/go7007-fw.c +++ b/drivers/media/usb/go7007/go7007-fw.c @@ -1499,8 +1499,8 @@ static int modet_to_package(struct go7007 *go, __le16 *code, int space) return cnt; } -static int do_special(struct go7007 *go, u16 type, __le16 *code, int space, - int *framelen) +static noinline_for_stack int do_special(struct go7007 *go, u16 type, + __le16 *code, int space, int *framelen) { switch (type) { case SPECIAL_FRM_HEAD: diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c index 0533ef20decf..232b0fd3e478 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c @@ -670,6 +670,8 @@ static int ctrl_get_input(struct pvr2_ctrl *cptr,int *vp) static int ctrl_check_input(struct pvr2_ctrl *cptr,int v) { + if (v < 0 || v > PVR2_CVAL_INPUT_MAX) + return 0; return ((1 << v) & cptr->hdw->input_allowed_mask) != 0; } diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.h b/drivers/media/usb/pvrusb2/pvrusb2-hdw.h index a82a00dd7329..80869990ffbb 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.h +++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.h @@ -54,6 +54,7 @@ #define PVR2_CVAL_INPUT_COMPOSITE 2 #define PVR2_CVAL_INPUT_SVIDEO 3 #define PVR2_CVAL_INPUT_RADIO 4 +#define PVR2_CVAL_INPUT_MAX PVR2_CVAL_INPUT_RADIO enum pvr2_config { pvr2_config_empty, /* No configuration */ diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c index ec30a004f319..e8f7a1f56be5 100644 --- a/drivers/media/usb/siano/smsusb.c +++ b/drivers/media/usb/siano/smsusb.c @@ -391,6 +391,7 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id) struct smsusb_device_t *dev; void *mdev; int i, rc; + int align = 0; /* create device object */ dev = kzalloc(sizeof(struct smsusb_device_t), GFP_KERNEL); @@ -402,6 +403,24 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id) dev->udev = interface_to_usbdev(intf); dev->state = SMSUSB_DISCONNECTED; + for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { + struct usb_endpoint_descriptor *desc = + &intf->cur_altsetting->endpoint[i].desc; + + if (desc->bEndpointAddress & USB_DIR_IN) { + dev->in_ep = desc->bEndpointAddress; + align = usb_endpoint_maxp(desc) - sizeof(struct sms_msg_hdr); + } else { + dev->out_ep = desc->bEndpointAddress; + } + } + + pr_debug("in_ep = %02x, out_ep = %02x\n", dev->in_ep, dev->out_ep); + if (!dev->in_ep || !dev->out_ep || align < 0) { /* Missing endpoints? */ + smsusb_term_device(intf); + return -ENODEV; + } + params.device_type = sms_get_board(board_id)->type; switch (params.device_type) { @@ -416,24 +435,12 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id) /* fall-thru */ default: dev->buffer_size = USB2_BUFFER_SIZE; - dev->response_alignment = - le16_to_cpu(dev->udev->ep_in[1]->desc.wMaxPacketSize) - - sizeof(struct sms_msg_hdr); + dev->response_alignment = align; params.flags |= SMS_DEVICE_FAMILY2; break; } - for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { - if (intf->cur_altsetting->endpoint[i].desc. bEndpointAddress & USB_DIR_IN) - dev->in_ep = intf->cur_altsetting->endpoint[i].desc.bEndpointAddress; - else - dev->out_ep = intf->cur_altsetting->endpoint[i].desc.bEndpointAddress; - } - - pr_debug("in_ep = %02x, out_ep = %02x\n", - dev->in_ep, dev->out_ep); - params.device = &dev->udev->dev; params.buffer_size = dev->buffer_size; params.num_buffers = MAX_BUFFERS; diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index f2e3fdf385cc..ebd1b882556d 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -868,7 +868,7 @@ static struct uvc_entity *uvc_alloc_entity(u16 type, u8 id, unsigned int size; unsigned int i; - extra_size = ALIGN(extra_size, sizeof(*entity->pads)); + extra_size = roundup(extra_size, sizeof(*entity->pads)); num_inputs = (type & UVC_TERM_OUTPUT) ? num_pads : num_pads - 1; size = sizeof(*entity) + extra_size + sizeof(*entity->pads) * num_pads + num_inputs; diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index 6ab481ee8ece..8ac02b6c162f 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -72,7 +72,7 @@ static int tegra_mc_setup_latency_allowance(struct tegra_mc *mc) u32 value; /* compute the number of MC clock cycles per tick */ - tick = mc->tick * clk_get_rate(mc->clk); + tick = (unsigned long long)mc->tick * clk_get_rate(mc->clk); do_div(tick, NSEC_PER_SEC); value = readl(mc->regs + MC_EMEM_ARB_CFG); diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c index c0012ca4229e..74923ffb0df1 100644 --- a/drivers/misc/genwqe/card_dev.c +++ b/drivers/misc/genwqe/card_dev.c @@ -782,6 +782,8 @@ static int genwqe_pin_mem(struct genwqe_file *cfile, struct genwqe_mem *m) if ((m->addr == 0x0) || (m->size == 0)) return -EINVAL; + if (m->size > ULONG_MAX - PAGE_SIZE - (m->addr & ~PAGE_MASK)) + return -EINVAL; map_addr = (m->addr & PAGE_MASK); map_size = round_up(m->size + (m->addr & ~PAGE_MASK), PAGE_SIZE); diff --git a/drivers/misc/genwqe/card_utils.c b/drivers/misc/genwqe/card_utils.c index 0c15ba21fa54..d4c719683a8a 100644 --- a/drivers/misc/genwqe/card_utils.c +++ b/drivers/misc/genwqe/card_utils.c @@ -582,6 +582,10 @@ int genwqe_user_vmap(struct genwqe_dev *cd, struct dma_mapping *m, void *uaddr, /* determine space needed for page_list. */ data = (unsigned long)uaddr; offs = offset_in_page(data); + if (size > ULONG_MAX - PAGE_SIZE - offs) { + m->size = 0; /* mark unused and not added */ + return -EINVAL; + } m->nr_pages = DIV_ROUND_UP(offs + size, PAGE_SIZE); m->page_list = kcalloc(m->nr_pages, diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 967535d76e34..fb8741f18c1f 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -216,6 +216,14 @@ static int mmc_decode_scr(struct mmc_card *card) if (scr->sda_spec3) scr->cmds = UNSTUFF_BITS(resp, 32, 2); + + /* SD Spec says: any SD Card shall set at least bits 0 and 2 */ + if (!(scr->bus_widths & SD_SCR_BUS_WIDTH_1) || + !(scr->bus_widths & SD_SCR_BUS_WIDTH_4)) { + pr_err("%s: invalid bus width\n", mmc_hostname(card->host)); + return -EINVAL; + } + return 0; } diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index e03ec74f3fb0..40a369c7005a 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -819,6 +819,10 @@ mmc_spi_readblock(struct mmc_spi_host *host, struct spi_transfer *t, } status = spi_sync_locked(spi, &host->m); + if (status < 0) { + dev_dbg(&spi->dev, "read error %d\n", status); + return status; + } if (host->dma_dev) { dma_sync_single_for_cpu(host->dma_dev, diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index ac66c61d9433..356b294c93c9 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -624,6 +624,11 @@ static int sdhci_esdhc_probe(struct platform_device *pdev) if (esdhc->vendor_ver > VENDOR_V_22) host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ; + if (of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc")) { + host->quirks2 |= SDHCI_QUIRK_RESET_AFTER_REQUEST; + host->quirks2 |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; + } + if (of_device_is_compatible(np, "fsl,p5040-esdhc") || of_device_is_compatible(np, "fsl,p5020-esdhc") || of_device_is_compatible(np, "fsl,p4080-esdhc") || diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 403fa8d98aa3..d450d8b3708c 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -12824,6 +12824,24 @@ static netdev_features_t bnx2x_features_check(struct sk_buff *skb, struct net_device *dev, netdev_features_t features) { + /* + * A skb with gso_size + header length > 9700 will cause a + * firmware panic. Drop GSO support. + * + * Eventually the upper layer should not pass these packets down. + * + * For speed, if the gso_size is <= 9000, assume there will + * not be 700 bytes of headers and pass it through. Only do a + * full (slow) validation if the gso_size is > 9000. + * + * (Due to the way SKB_BY_FRAGS works this will also do a full + * validation in that case.) + */ + if (unlikely(skb_is_gso(skb) && + (skb_shinfo(skb)->gso_size > 9000) && + !skb_gso_validate_mac_len(skb, 9700))) + features &= ~NETIF_F_GSO_MASK; + features = vlan_features_check(skb, features); return vxlan_features_check(skb, features); } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index d9ab970dcbe9..81282b811a6c 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1140,6 +1140,8 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons, skb = bnxt_copy_skb(bnapi, data, len, dma_addr); bnxt_reuse_rx_data(rxr, cons, data); if (!skb) { + if (agg_bufs) + bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs); rc = -ENOMEM; goto next_rx; } diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h index 8cffcdfd5678..38b5858c335a 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h +++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h @@ -75,8 +75,8 @@ struct l2t_data { struct l2t_entry *rover; /* starting point for next allocation */ atomic_t nfree; /* number of free entries */ rwlock_t lock; - struct l2t_entry l2tab[0]; struct rcu_head rcu_head; /* to handle rcu cleanup */ + struct l2t_entry l2tab[]; }; typedef void (*arp_failure_handler_func)(struct t3cdev * dev, diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index a3e1498ca67c..3b96622de8ff 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -5061,15 +5061,24 @@ static int __init cxgb4_init_module(void) ret = pci_register_driver(&cxgb4_driver); if (ret < 0) - debugfs_remove(cxgb4_debugfs_root); + goto err_pci; #if IS_ENABLED(CONFIG_IPV6) if (!inet6addr_registered) { - register_inet6addr_notifier(&cxgb4_inet6addr_notifier); - inet6addr_registered = true; + ret = register_inet6addr_notifier(&cxgb4_inet6addr_notifier); + if (ret) + pci_unregister_driver(&cxgb4_driver); + else + inet6addr_registered = true; } #endif + if (ret == 0) + return ret; + +err_pci: + debugfs_remove(cxgb4_debugfs_root); + return ret; } diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 06b38f50980c..22c43a776c6c 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -2263,6 +2263,10 @@ void i40e_vlan_stripping_enable(struct i40e_vsi *vsi) struct i40e_vsi_context ctxt; i40e_status ret; + /* Don't modify stripping options if a port VLAN is active */ + if (vsi->info.pvid) + return; + if ((vsi->info.valid_sections & cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) && ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_MODE_MASK) == 0)) @@ -2293,6 +2297,10 @@ void i40e_vlan_stripping_disable(struct i40e_vsi *vsi) struct i40e_vsi_context ctxt; i40e_status ret; + /* Don't modify stripping options if a port VLAN is active */ + if (vsi->info.pvid) + return; + if ((vsi->info.valid_sections & cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) && ((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_EMOD_MASK) == diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c index 42305f3234ff..03f0d20aa08b 100644 --- a/drivers/net/ethernet/marvell/mvpp2.c +++ b/drivers/net/ethernet/marvell/mvpp2.c @@ -3940,7 +3940,7 @@ static inline void mvpp2_gmac_max_rx_size_set(struct mvpp2_port *port) /* Set defaults to the MVPP2 port */ static void mvpp2_defaults_set(struct mvpp2_port *port) { - int tx_port_num, val, queue, ptxq, lrxq; + int tx_port_num, val, queue, lrxq; /* Configure port to loopback if needed */ if (port->flags & MVPP2_F_LOOPBACK) @@ -3960,11 +3960,9 @@ static void mvpp2_defaults_set(struct mvpp2_port *port) mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0); /* Close bandwidth for all queues */ - for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) { - ptxq = mvpp2_txq_phys(port->id, queue); + for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) mvpp2_write(port->priv, - MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(ptxq), 0); - } + MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(queue), 0); /* Set refill period to 1 usec, refill tokens * and bucket size to maximum @@ -4722,7 +4720,7 @@ static void mvpp2_txq_deinit(struct mvpp2_port *port, txq->descs_phys = 0; /* Set minimum bandwidth for disabled TXQs */ - mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->id), 0); + mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->log_id), 0); /* Set Tx descriptors queue starting address and size */ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id); diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index bcfac000199e..fcd1e6b3950d 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -1906,6 +1906,8 @@ static int mlx4_en_set_tunable(struct net_device *dev, return ret; } +#define MLX4_EEPROM_PAGE_LEN 256 + static int mlx4_en_get_module_info(struct net_device *dev, struct ethtool_modinfo *modinfo) { @@ -1940,7 +1942,7 @@ static int mlx4_en_get_module_info(struct net_device *dev, break; case MLX4_MODULE_ID_SFP: modinfo->type = ETH_MODULE_SFF_8472; - modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; + modinfo->eeprom_len = MLX4_EEPROM_PAGE_LEN; break; default: return -ENOSYS; diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c index 897d061e4f03..3bf63de3a725 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mcg.c +++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c @@ -1485,7 +1485,7 @@ int mlx4_flow_steer_promisc_add(struct mlx4_dev *dev, u8 port, rule.port = port; rule.qpn = qpn; INIT_LIST_HEAD(&rule.list); - mlx4_err(dev, "going promisc on %x\n", port); + mlx4_info(dev, "going promisc on %x\n", port); return mlx4_flow_attach(dev, &rule, regid_p); } diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index c2b21313dba7..a9c4818448f9 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -1398,11 +1398,6 @@ int mlx4_get_module_info(struct mlx4_dev *dev, u8 port, size -= offset + size - I2C_PAGE_SIZE; i2c_addr = I2C_ADDR_LOW; - if (offset >= I2C_PAGE_SIZE) { - /* Reset offset to high page */ - i2c_addr = I2C_ADDR_HIGH; - offset -= I2C_PAGE_SIZE; - } cable_info = (struct mlx4_cable_info *)inmad->data; cable_info->dev_mem_address = cpu_to_be16(offset); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c index 90d95b3654f5..6bdde92869fb 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c @@ -154,7 +154,8 @@ int stmmac_mdio_reset(struct mii_bus *bus) of_property_read_u32_array(np, "snps,reset-delays-us", data->delays, 3); - if (gpio_request(data->reset_gpio, "mdio-reset")) + if (devm_gpio_request(priv->device, data->reset_gpio, + "mdio-reset")) return 0; } diff --git a/drivers/net/ppp/ppp_deflate.c b/drivers/net/ppp/ppp_deflate.c index b5edc7f96a39..685e875f5164 100644 --- a/drivers/net/ppp/ppp_deflate.c +++ b/drivers/net/ppp/ppp_deflate.c @@ -610,12 +610,20 @@ static struct compressor ppp_deflate_draft = { static int __init deflate_init(void) { - int answer = ppp_register_compressor(&ppp_deflate); - if (answer == 0) - printk(KERN_INFO - "PPP Deflate Compression module registered\n"); - ppp_register_compressor(&ppp_deflate_draft); - return answer; + int rc; + + rc = ppp_register_compressor(&ppp_deflate); + if (rc) + return rc; + + rc = ppp_register_compressor(&ppp_deflate_draft); + if (rc) { + ppp_unregister_compressor(&ppp_deflate); + return rc; + } + + pr_info("PPP Deflate Compression module registered\n"); + return 0; } static void __exit deflate_cleanup(void) diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 36e1377fc954..1e921e5eddc7 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -727,7 +727,7 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_ int err; u8 iface_no; struct usb_cdc_parsed_header hdr; - u16 curr_ntb_format; + __le16 curr_ntb_format; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) @@ -841,7 +841,7 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_ goto error2; } - if (curr_ntb_format == USB_CDC_NCM_NTB32_FORMAT) { + if (curr_ntb_format == cpu_to_le16(USB_CDC_NCM_NTB32_FORMAT)) { dev_info(&intf->dev, "resetting NTB format to 16-bit"); err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_FORMAT, USB_TYPE_CLASS | USB_DIR_OUT diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 9710cf71054a..2502681369cd 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -499,6 +499,7 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) if (netif_running (dev->net) && netif_device_present (dev->net) && + test_bit(EVENT_DEV_OPEN, &dev->flags) && !test_bit (EVENT_RX_HALT, &dev->flags) && !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) { switch (retval = usb_submit_urb (urb, GFP_ATOMIC)) { @@ -1385,6 +1386,11 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb, spin_unlock_irqrestore(&dev->txq.lock, flags); goto drop; } + if (netif_queue_stopped(net)) { + usb_autopm_put_interface_async(dev->intf); + spin_unlock_irqrestore(&dev->txq.lock, flags); + goto drop; + } #ifdef CONFIG_PM /* if this triggers the device is still a sleep */ diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c index dab25136214a..da14eca2aa2c 100644 --- a/drivers/net/wireless/at76c50x-usb.c +++ b/drivers/net/wireless/at76c50x-usb.c @@ -2582,8 +2582,8 @@ static int __init at76_mod_init(void) if (result < 0) printk(KERN_ERR DRIVER_NAME ": usb_register failed (status %d)\n", result); - - led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); + else + led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); return result; } diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c index 058a9f232050..55cb07693ae8 100644 --- a/drivers/net/wireless/b43/phy_lp.c +++ b/drivers/net/wireless/b43/phy_lp.c @@ -1834,7 +1834,7 @@ static void lpphy_papd_cal(struct b43_wldev *dev, struct lpphy_tx_gains gains, static void lpphy_papd_cal_txpwr(struct b43_wldev *dev) { struct b43_phy_lp *lpphy = dev->phy.lp; - struct lpphy_tx_gains gains, oldgains; + struct lpphy_tx_gains oldgains; int old_txpctl, old_afe_ovr, old_rf, old_bbmult; lpphy_read_tx_pctl_mode_from_hardware(dev); @@ -1848,9 +1848,9 @@ static void lpphy_papd_cal_txpwr(struct b43_wldev *dev) lpphy_set_tx_power_control(dev, B43_LPPHY_TXPCTL_OFF); if (dev->dev->chip_id == 0x4325 && dev->dev->chip_rev == 0) - lpphy_papd_cal(dev, gains, 0, 1, 30); + lpphy_papd_cal(dev, oldgains, 0, 1, 30); else - lpphy_papd_cal(dev, gains, 0, 1, 65); + lpphy_papd_cal(dev, oldgains, 0, 1, 65); if (old_afe_ovr) lpphy_set_tx_gains(dev, oldgains); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bus.h b/drivers/net/wireless/brcm80211/brcmfmac/bus.h index 230cad788ace..84b8b1eaa22c 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/bus.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/bus.h @@ -214,7 +214,9 @@ bool brcmf_c_prec_enq(struct device *dev, struct pktq *q, struct sk_buff *pkt, int prec); /* Receive frame for delivery to OS. Callee disposes of rxp. */ -void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp); +void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp, bool handle_event); +/* Receive async event packet from firmware. Callee disposes of rxp. */ +void brcmf_rx_event(struct device *dev, struct sk_buff *rxp); /* Indication from bus module regarding presence/insertion of dongle. */ int brcmf_attach(struct device *dev); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c index ad35e760ed3f..231c0ba6acb9 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c @@ -3328,9 +3328,15 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp, struct brcmf_pno_scanresults_le *pfn_result; u32 result_count; u32 status; + u32 datalen; brcmf_dbg(SCAN, "Enter\n"); + if (e->datalen < (sizeof(*pfn_result) + sizeof(*netinfo))) { + brcmf_dbg(SCAN, "Event data to small. Ignore\n"); + return 0; + } + if (e->event_code == BRCMF_E_PFN_NET_LOST) { brcmf_dbg(SCAN, "PFN NET LOST event. Do Nothing\n"); return 0; @@ -3349,6 +3355,14 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp, if (result_count > 0) { int i; + data += sizeof(struct brcmf_pno_scanresults_le); + netinfo_start = (struct brcmf_pno_net_info_le *)data; + datalen = e->datalen - ((void *)netinfo_start - (void *)pfn_result); + if (datalen < result_count * sizeof(*netinfo)) { + brcmf_err("insufficient event data\n"); + goto out_err; + } + request = kzalloc(sizeof(*request), GFP_KERNEL); ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL); channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL); @@ -3358,9 +3372,6 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp, } request->wiphy = wiphy; - data += sizeof(struct brcmf_pno_scanresults_le); - netinfo_start = (struct brcmf_pno_net_info_le *)data; - for (i = 0; i < result_count; i++) { netinfo = &netinfo_start[i]; if (!netinfo) { @@ -3370,6 +3381,8 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp, goto out_err; } + if (netinfo->SSID_len > IEEE80211_MAX_SSID_LEN) + netinfo->SSID_len = IEEE80211_MAX_SSID_LEN; brcmf_dbg(SCAN, "SSID:%s Channel:%d\n", netinfo->SSID, netinfo->channel); memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len); @@ -4836,6 +4849,8 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, conn_info->req_ie = kmemdup(cfg->extra_buf, conn_info->req_ie_len, GFP_KERNEL); + if (!conn_info->req_ie) + conn_info->req_ie_len = 0; } else { conn_info->req_ie_len = 0; conn_info->req_ie = NULL; @@ -4852,6 +4867,8 @@ static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg, conn_info->resp_ie = kmemdup(cfg->extra_buf, conn_info->resp_ie_len, GFP_KERNEL); + if (!conn_info->resp_ie) + conn_info->resp_ie_len = 0; } else { conn_info->resp_ie_len = 0; conn_info->resp_ie = NULL; diff --git a/drivers/net/wireless/brcm80211/brcmfmac/core.c b/drivers/net/wireless/brcm80211/brcmfmac/core.c index 82753e7c7e7c..3082391c3062 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/core.c @@ -303,15 +303,9 @@ void brcmf_txflowblock(struct device *dev, bool state) void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb) { - skb->dev = ifp->ndev; - skb->protocol = eth_type_trans(skb, skb->dev); - if (skb->pkt_type == PACKET_MULTICAST) ifp->stats.multicast++; - /* Process special event packets */ - brcmf_fweh_process_skb(ifp->drvr, skb); - if (!(ifp->ndev->flags & IFF_UP)) { brcmu_pkt_buf_free_skb(skb); return; @@ -526,7 +520,7 @@ netif_rx: } } -void brcmf_rx_frame(struct device *dev, struct sk_buff *skb) +void brcmf_rx_frame(struct device *dev, struct sk_buff *skb, bool handle_event) { struct brcmf_if *ifp; struct brcmf_bus *bus_if = dev_get_drvdata(dev); @@ -546,11 +540,44 @@ void brcmf_rx_frame(struct device *dev, struct sk_buff *skb) return; } + skb->protocol = eth_type_trans(skb, ifp->ndev); + rd = (struct brcmf_skb_reorder_data *)skb->cb; - if (rd->reorder) + if (rd->reorder) { brcmf_rxreorder_process_info(ifp, rd->reorder, skb); - else + } else { + /* Process special event packets */ + if (handle_event) + brcmf_fweh_process_skb(ifp->drvr, skb, + BCMILCP_SUBTYPE_VENDOR_LONG); + brcmf_netif_rx(ifp, skb); + } +} + +void brcmf_rx_event(struct device *dev, struct sk_buff *skb) +{ + struct brcmf_if *ifp; + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + int ret; + + brcmf_dbg(EVENT, "Enter: %s: rxp=%p\n", dev_name(dev), skb); + + /* process and remove protocol-specific header */ + ret = brcmf_proto_hdrpull(drvr, true, skb, &ifp); + + if (ret || !ifp || !ifp->ndev) { + if (ret != -ENODATA && ifp) + ifp->stats.rx_errors++; + brcmu_pkt_buf_free_skb(skb); + return; + } + + skb->protocol = eth_type_trans(skb, ifp->ndev); + + brcmf_fweh_process_skb(ifp->drvr, skb, 0); + brcmu_pkt_buf_free_skb(skb); } void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c index 3878b6f6cfce..f9aa37032c2d 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c @@ -25,50 +25,6 @@ #include "fweh.h" #include "fwil.h" -/** - * struct brcm_ethhdr - broadcom specific ether header. - * - * @subtype: subtype for this packet. - * @length: TODO: length of appended data. - * @version: version indication. - * @oui: OUI of this packet. - * @usr_subtype: subtype for this OUI. - */ -struct brcm_ethhdr { - __be16 subtype; - __be16 length; - u8 version; - u8 oui[3]; - __be16 usr_subtype; -} __packed; - -struct brcmf_event_msg_be { - __be16 version; - __be16 flags; - __be32 event_type; - __be32 status; - __be32 reason; - __be32 auth_type; - __be32 datalen; - u8 addr[ETH_ALEN]; - char ifname[IFNAMSIZ]; - u8 ifidx; - u8 bsscfgidx; -} __packed; - -/** - * struct brcmf_event - contents of broadcom event packet. - * - * @eth: standard ether header. - * @hdr: broadcom specific ether header. - * @msg: common part of the actual event message. - */ -struct brcmf_event { - struct ethhdr eth; - struct brcm_ethhdr hdr; - struct brcmf_event_msg_be msg; -} __packed; - /** * struct brcmf_fweh_queue_item - event item on event queue. * @@ -85,6 +41,7 @@ struct brcmf_fweh_queue_item { u8 ifidx; u8 ifaddr[ETH_ALEN]; struct brcmf_event_msg_be emsg; + u32 datalen; u8 data[0]; }; @@ -294,6 +251,11 @@ static void brcmf_fweh_event_worker(struct work_struct *work) brcmf_dbg_hex_dump(BRCMF_EVENT_ON(), event->data, min_t(u32, emsg.datalen, 64), "event payload, len=%d\n", emsg.datalen); + if (emsg.datalen > event->datalen) { + brcmf_err("event invalid length header=%d, msg=%d\n", + event->datalen, emsg.datalen); + goto event_free; + } /* special handling of interface event */ if (event->code == BRCMF_E_IF) { @@ -439,7 +401,8 @@ int brcmf_fweh_activate_events(struct brcmf_if *ifp) * dispatch the event to a registered handler (using worker). */ void brcmf_fweh_process_event(struct brcmf_pub *drvr, - struct brcmf_event *event_packet) + struct brcmf_event *event_packet, + u32 packet_len) { enum brcmf_fweh_event_code code; struct brcmf_fweh_info *fweh = &drvr->fweh; @@ -459,6 +422,9 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr, if (code != BRCMF_E_IF && !fweh->evt_handler[code]) return; + if (datalen > BRCMF_DCMD_MAXLEN) + return; + if (in_interrupt()) alloc_flag = GFP_ATOMIC; @@ -472,6 +438,7 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr, /* use memcpy to get aligned event message */ memcpy(&event->emsg, &event_packet->msg, sizeof(event->emsg)); memcpy(event->data, data, datalen); + event->datalen = datalen; memcpy(event->ifaddr, event_packet->eth.h_dest, ETH_ALEN); brcmf_fweh_queue_event(fweh, event); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h index d9a942842382..b53db92341ce 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h @@ -27,7 +27,6 @@ struct brcmf_pub; struct brcmf_if; struct brcmf_cfg80211_info; -struct brcmf_event; /* list of firmware events */ #define BRCMF_FWEH_EVENT_ENUM_DEFLIST \ @@ -180,11 +179,53 @@ enum brcmf_fweh_event_code { /** * definitions for event packet validation. */ -#define BRCMF_EVENT_OUI_OFFSET 19 -#define BRCM_OUI "\x00\x10\x18" -#define DOT11_OUI_LEN 3 -#define BCMILCP_BCM_SUBTYPE_EVENT 1 +#define BRCM_OUI "\x00\x10\x18" +#define BCMILCP_BCM_SUBTYPE_EVENT 1 +#define BCMILCP_SUBTYPE_VENDOR_LONG 32769 +/** + * struct brcm_ethhdr - broadcom specific ether header. + * + * @subtype: subtype for this packet. + * @length: TODO: length of appended data. + * @version: version indication. + * @oui: OUI of this packet. + * @usr_subtype: subtype for this OUI. + */ +struct brcm_ethhdr { + __be16 subtype; + __be16 length; + u8 version; + u8 oui[3]; + __be16 usr_subtype; +} __packed; + +struct brcmf_event_msg_be { + __be16 version; + __be16 flags; + __be32 event_type; + __be32 status; + __be32 reason; + __be32 auth_type; + __be32 datalen; + u8 addr[ETH_ALEN]; + char ifname[IFNAMSIZ]; + u8 ifidx; + u8 bsscfgidx; +} __packed; + +/** + * struct brcmf_event - contents of broadcom event packet. + * + * @eth: standard ether header. + * @hdr: broadcom specific ether header. + * @msg: common part of the actual event message. + */ +struct brcmf_event { + struct ethhdr eth; + struct brcm_ethhdr hdr; + struct brcmf_event_msg_be msg; +} __packed; /** * struct brcmf_event_msg - firmware event message. @@ -256,34 +297,43 @@ void brcmf_fweh_unregister(struct brcmf_pub *drvr, enum brcmf_fweh_event_code code); int brcmf_fweh_activate_events(struct brcmf_if *ifp); void brcmf_fweh_process_event(struct brcmf_pub *drvr, - struct brcmf_event *event_packet); + struct brcmf_event *event_packet, + u32 packet_len); void brcmf_fweh_p2pdev_setup(struct brcmf_if *ifp, bool ongoing); static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr, - struct sk_buff *skb) + struct sk_buff *skb, u16 stype) { struct brcmf_event *event_packet; - u8 *data; - u16 usr_stype; + u16 subtype, usr_stype; /* only process events when protocol matches */ if (skb->protocol != cpu_to_be16(ETH_P_LINK_CTL)) return; - /* check for BRCM oui match */ + if ((skb->len + ETH_HLEN) < sizeof(*event_packet)) + return; + event_packet = (struct brcmf_event *)skb_mac_header(skb); - data = (u8 *)event_packet; - data += BRCMF_EVENT_OUI_OFFSET; - if (memcmp(BRCM_OUI, data, DOT11_OUI_LEN)) + + /* check subtype if needed */ + if (unlikely(stype)) { + subtype = get_unaligned_be16(&event_packet->hdr.subtype); + if (subtype != stype) + return; + } + + /* check for BRCM oui match */ + if (memcmp(BRCM_OUI, &event_packet->hdr.oui[0], + sizeof(event_packet->hdr.oui))) return; /* final match on usr_subtype */ - data += DOT11_OUI_LEN; - usr_stype = get_unaligned_be16(data); + usr_stype = get_unaligned_be16(&event_packet->hdr.usr_subtype); if (usr_stype != BCMILCP_BCM_SUBTYPE_EVENT) return; - brcmf_fweh_process_event(drvr, event_packet); + brcmf_fweh_process_event(drvr, event_packet, skb->len + ETH_HLEN); } #endif /* FWEH_H_ */ diff --git a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c index 44e618f9d890..6f7138cea555 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c @@ -20,6 +20,7 @@ #include #include +#include #include #include @@ -1076,28 +1077,13 @@ static void brcmf_msgbuf_rxbuf_event_post(struct brcmf_msgbuf *msgbuf) } -static void -brcmf_msgbuf_rx_skb(struct brcmf_msgbuf *msgbuf, struct sk_buff *skb, - u8 ifidx) -{ - struct brcmf_if *ifp; - - ifp = brcmf_get_ifp(msgbuf->drvr, ifidx); - if (!ifp || !ifp->ndev) { - brcmf_err("Received pkt for invalid ifidx %d\n", ifidx); - brcmu_pkt_buf_free_skb(skb); - return; - } - brcmf_netif_rx(ifp, skb); -} - - static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf) { struct msgbuf_rx_event *event; u32 idx; u16 buflen; struct sk_buff *skb; + struct brcmf_if *ifp; event = (struct msgbuf_rx_event *)buf; idx = le32_to_cpu(event->msg.request_id); @@ -1117,7 +1103,19 @@ static void brcmf_msgbuf_process_event(struct brcmf_msgbuf *msgbuf, void *buf) skb_trim(skb, buflen); - brcmf_msgbuf_rx_skb(msgbuf, skb, event->msg.ifidx); + ifp = brcmf_get_ifp(msgbuf->drvr, event->msg.ifidx); + if (!ifp || !ifp->ndev) { + brcmf_err("Received pkt for invalid ifidx %d\n", + event->msg.ifidx); + goto exit; + } + + skb->protocol = eth_type_trans(skb, ifp->ndev); + + brcmf_fweh_process_skb(ifp->drvr, skb, 0); + +exit: + brcmu_pkt_buf_free_skb(skb); } @@ -1129,6 +1127,7 @@ brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf) u16 data_offset; u16 buflen; u32 idx; + struct brcmf_if *ifp; brcmf_msgbuf_update_rxbufpost_count(msgbuf, 1); @@ -1149,7 +1148,14 @@ brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf) skb_trim(skb, buflen); - brcmf_msgbuf_rx_skb(msgbuf, skb, rx_complete->msg.ifidx); + ifp = brcmf_get_ifp(msgbuf->drvr, rx_complete->msg.ifidx); + if (!ifp || !ifp->ndev) { + brcmf_err("Received pkt for invalid ifidx %d\n", + rx_complete->msg.ifidx); + brcmu_pkt_buf_free_skb(skb); + return; + } + brcmf_netif_rx(ifp, skb); } diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c index 3196245ab820..e6c8b0d5afe0 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c @@ -1365,6 +1365,11 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp, u16 mgmt_type; u8 action; + if (e->datalen < sizeof(*rxframe)) { + brcmf_dbg(SCAN, "Event data to small. Ignore\n"); + return 0; + } + ch.chspec = be16_to_cpu(rxframe->chanspec); cfg->d11inf.decchspec(&ch); /* Check if wpa_supplicant has registered for this frame */ @@ -1862,6 +1867,11 @@ s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp, brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code, e->reason); + if (e->datalen < sizeof(*rxframe)) { + brcmf_dbg(SCAN, "Event data to small. Ignore\n"); + return 0; + } + ch.chspec = be16_to_cpu(rxframe->chanspec); cfg->d11inf.decchspec(&ch); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c index 35f62b00f1df..9954e641c943 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c @@ -1394,6 +1394,17 @@ static inline u8 brcmf_sdio_getdatoffset(u8 *swheader) return (u8)((hdrvalue & SDPCM_DOFFSET_MASK) >> SDPCM_DOFFSET_SHIFT); } +static inline bool brcmf_sdio_fromevntchan(u8 *swheader) +{ + u32 hdrvalue; + u8 ret; + + hdrvalue = *(u32 *)swheader; + ret = (u8)((hdrvalue & SDPCM_CHANNEL_MASK) >> SDPCM_CHANNEL_SHIFT); + + return (ret == SDPCM_EVENT_CHANNEL); +} + static int brcmf_sdio_hdparse(struct brcmf_sdio *bus, u8 *header, struct brcmf_sdio_hdrinfo *rd, enum brcmf_sdio_frmtype type) @@ -1754,7 +1765,11 @@ static u8 brcmf_sdio_rxglom(struct brcmf_sdio *bus, u8 rxseq) pfirst->len, pfirst->next, pfirst->prev); skb_unlink(pfirst, &bus->glom); - brcmf_rx_frame(bus->sdiodev->dev, pfirst); + if (brcmf_sdio_fromevntchan(&dptr[SDPCM_HWHDR_LEN])) + brcmf_rx_event(bus->sdiodev->dev, pfirst); + else + brcmf_rx_frame(bus->sdiodev->dev, pfirst, + false); bus->sdcnt.rxglompkts++; } @@ -2081,18 +2096,19 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes) __skb_trim(pkt, rd->len); skb_pull(pkt, rd->dat_offset); + if (pkt->len == 0) + brcmu_pkt_buf_free_skb(pkt); + else if (rd->channel == SDPCM_EVENT_CHANNEL) + brcmf_rx_event(bus->sdiodev->dev, pkt); + else + brcmf_rx_frame(bus->sdiodev->dev, pkt, + false); + /* prepare the descriptor for the next read */ rd->len = rd->len_nxtfrm << 4; rd->len_nxtfrm = 0; /* treat all packet as event if we don't know */ rd->channel = SDPCM_EVENT_CHANNEL; - - if (pkt->len == 0) { - brcmu_pkt_buf_free_skb(pkt); - continue; - } - - brcmf_rx_frame(bus->sdiodev->dev, pkt); } rxcount = maxframes - rxleft; diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c index 689e64d004bc..3002268e57f3 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c @@ -144,7 +144,7 @@ struct brcmf_usbdev_info { struct usb_device *usbdev; struct device *dev; - struct mutex dev_init_lock; + struct completion dev_init_done; int ctl_in_pipe, ctl_out_pipe; struct urb *ctl_urb; /* URB for control endpoint */ @@ -502,7 +502,7 @@ static void brcmf_usb_rx_complete(struct urb *urb) if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) { skb_put(skb, urb->actual_length); - brcmf_rx_frame(devinfo->dev, skb); + brcmf_rx_frame(devinfo->dev, skb, true); brcmf_usb_rx_refill(devinfo, req); } else { brcmu_pkt_buf_free_skb(skb); @@ -669,12 +669,18 @@ static int brcmf_usb_up(struct device *dev) static void brcmf_cancel_all_urbs(struct brcmf_usbdev_info *devinfo) { + int i; + if (devinfo->ctl_urb) usb_kill_urb(devinfo->ctl_urb); if (devinfo->bulk_urb) usb_kill_urb(devinfo->bulk_urb); - brcmf_usb_free_q(&devinfo->tx_postq, true); - brcmf_usb_free_q(&devinfo->rx_postq, true); + if (devinfo->tx_reqs) + for (i = 0; i < devinfo->bus_pub.ntxq; i++) + usb_kill_urb(devinfo->tx_reqs[i].urb); + if (devinfo->rx_reqs) + for (i = 0; i < devinfo->bus_pub.nrxq; i++) + usb_kill_urb(devinfo->rx_reqs[i].urb); } static void brcmf_usb_down(struct device *dev) @@ -1226,11 +1232,11 @@ static void brcmf_usb_probe_phase2(struct device *dev, if (ret) goto error; - mutex_unlock(&devinfo->dev_init_lock); + complete(&devinfo->dev_init_done); return; error: brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret); - mutex_unlock(&devinfo->dev_init_lock); + complete(&devinfo->dev_init_done); device_release_driver(dev); } @@ -1268,7 +1274,7 @@ static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo) if (ret) goto fail; /* we are done */ - mutex_unlock(&devinfo->dev_init_lock); + complete(&devinfo->dev_init_done); return 0; } bus->chip = bus_pub->devid; @@ -1322,11 +1328,10 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) devinfo->usbdev = usb; devinfo->dev = &usb->dev; - /* Take an init lock, to protect for disconnect while still loading. + /* Init completion, to protect for disconnect while still loading. * Necessary because of the asynchronous firmware load construction */ - mutex_init(&devinfo->dev_init_lock); - mutex_lock(&devinfo->dev_init_lock); + init_completion(&devinfo->dev_init_done); usb_set_intfdata(intf, devinfo); @@ -1402,7 +1407,7 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) return 0; fail: - mutex_unlock(&devinfo->dev_init_lock); + complete(&devinfo->dev_init_done); kfree(devinfo); usb_set_intfdata(intf, NULL); return ret; @@ -1417,7 +1422,7 @@ brcmf_usb_disconnect(struct usb_interface *intf) devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf); if (devinfo) { - mutex_lock(&devinfo->dev_init_lock); + wait_for_completion(&devinfo->dev_init_done); /* Make sure that devinfo still exists. Firmware probe routines * may have released the device and cleared the intfdata. */ diff --git a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c index 8eff2753abad..d493021f6031 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c @@ -35,9 +35,10 @@ static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy, struct brcmf_if *ifp; const struct brcmf_vndr_dcmd_hdr *cmdhdr = data; struct sk_buff *reply; - int ret, payload, ret_len; + unsigned int payload, ret_len; void *dcmd_buf = NULL, *wr_pointer; u16 msglen, maxmsglen = PAGE_SIZE - 0x100; + int ret; if (len < sizeof(*cmdhdr)) { brcmf_err("vendor command too short: %d\n", len); @@ -65,7 +66,7 @@ static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy, brcmf_err("oversize return buffer %d\n", ret_len); ret_len = BRCMF_DCMD_MAXLEN; } - payload = max(ret_len, len) + 1; + payload = max_t(unsigned int, ret_len, len) + 1; dcmd_buf = vzalloc(payload); if (NULL == dcmd_buf) return -ENOMEM; diff --git a/drivers/net/wireless/cw1200/main.c b/drivers/net/wireless/cw1200/main.c index 0e51e27d2e3f..317daa968e03 100644 --- a/drivers/net/wireless/cw1200/main.c +++ b/drivers/net/wireless/cw1200/main.c @@ -345,6 +345,11 @@ static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr, mutex_init(&priv->wsm_cmd_mux); mutex_init(&priv->conf_mutex); priv->workqueue = create_singlethread_workqueue("cw1200_wq"); + if (!priv->workqueue) { + ieee80211_free_hw(hw); + return NULL; + } + sema_init(&priv->scan.lock, 1); INIT_WORK(&priv->scan.work, cw1200_scan_work); INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work); diff --git a/drivers/net/wireless/mwifiex/cfp.c b/drivers/net/wireless/mwifiex/cfp.c index 3ddb8ec676ed..6dd331dfb517 100644 --- a/drivers/net/wireless/mwifiex/cfp.c +++ b/drivers/net/wireless/mwifiex/cfp.c @@ -533,5 +533,8 @@ u8 mwifiex_adjust_data_rate(struct mwifiex_private *priv, rate_index = (rx_rate > MWIFIEX_RATE_INDEX_OFDM0) ? rx_rate - 1 : rx_rate; + if (rate_index >= MWIFIEX_MAX_AC_RX_RATES) + rate_index = MWIFIEX_MAX_AC_RX_RATES - 1; + return rate_index; } diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c index aab752328c26..5013d8c1d4a6 100644 --- a/drivers/net/wireless/realtek/rtlwifi/base.c +++ b/drivers/net/wireless/realtek/rtlwifi/base.c @@ -466,6 +466,11 @@ static void _rtl_init_deferred_work(struct ieee80211_hw *hw) /* <2> work queue */ rtlpriv->works.hw = hw; rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name); + if (unlikely(!rtlpriv->works.rtl_wq)) { + pr_err("Failed to allocate work queue\n"); + return; + } + INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq, (void *)rtl_watchdog_wq_callback); INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq, diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 34f1d6b41fb9..cc3708ea8084 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -563,8 +563,6 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba, /* We currently only support kernel addresses */ BUG_ON(sid != KERNEL_SPACE); - mtsp(sid,1); - /* ** WORD 1 - low order word ** "hints" parm includes the VALID bit! @@ -595,7 +593,7 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba, ** Grab virtual index [0:11] ** Deposit virt_idx bits into I/O PDIR word */ - asm volatile ("lci %%r0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba)); + asm volatile ("lci %%r0(%1), %0" : "=r" (ci) : "r" (vba)); asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci)); asm volatile ("depw %1,15,12,%0" : "+r" (pa) : "r" (ci)); diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index d6326144ce01..f3b9746157f8 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -573,8 +573,7 @@ sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba, pa = virt_to_phys(vba); pa &= IOVP_MASK; - mtsp(sid,1); - asm("lci 0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba)); + asm("lci 0(%1), %0" : "=r" (ci) : "r" (vba)); pa |= (ci >> PAGE_SHIFT) & 0xff; /* move CI (8 bits) into lowest byte */ pa |= SBA_PDIR_VALID_BIT; /* set "valid" bit */ diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index d85010ebac5a..36c6f3702167 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3141,6 +3141,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0034, quirk_no_bus_reset); static void quirk_no_pm_reset(struct pci_dev *dev) { diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c index 98a459b1c095..86e8d989092c 100644 --- a/drivers/pinctrl/pinctrl-pistachio.c +++ b/drivers/pinctrl/pinctrl-pistachio.c @@ -1373,6 +1373,7 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl) if (!of_find_property(child, "gpio-controller", NULL)) { dev_err(pctl->dev, "No gpio-controller property for bank %u\n", i); + of_node_put(child); ret = -ENODEV; goto err; } @@ -1380,6 +1381,7 @@ static int pistachio_gpio_register(struct pistachio_pinctrl *pctl) irq = irq_of_parse_and_map(child, 0); if (irq < 0) { dev_err(pctl->dev, "No IRQ for bank %u: %d\n", i, irq); + of_node_put(child); ret = irq; goto err; } diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index ed2d7fd0c734..488dd7eb0aeb 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -277,15 +277,11 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env) char *prop_buf; char *attrname; - dev_dbg(dev, "uevent\n"); - if (!psy || !psy->desc) { dev_dbg(dev, "No power supply yet\n"); return ret; } - dev_dbg(dev, "POWER_SUPPLY_NAME=%s\n", psy->desc->name); - ret = add_uevent_var(env, "POWER_SUPPLY_NAME=%s", psy->desc->name); if (ret) return ret; @@ -321,8 +317,6 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env) goto out; } - dev_dbg(dev, "prop %s=%s\n", attrname, prop_buf); - ret = add_uevent_var(env, "POWER_SUPPLY_%s=%s", attrname, prop_buf); kfree(attrname); if (ret) diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c index 19e53b3b8e00..166faae3a59c 100644 --- a/drivers/rtc/rtc-88pm860x.c +++ b/drivers/rtc/rtc-88pm860x.c @@ -414,7 +414,7 @@ static int pm860x_rtc_remove(struct platform_device *pdev) struct pm860x_rtc_info *info = platform_get_drvdata(pdev); #ifdef VRTC_CALIBRATION - flush_scheduled_work(); + cancel_delayed_work_sync(&info->calib_work); /* disable measurement */ pm860x_set_bits(info->i2c, PM8607_MEAS_EN2, MEAS2_VRTC, 0); #endif /* VRTC_CALIBRATION */ diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h index a01376ae1749..fdb87520543f 100644 --- a/drivers/s390/cio/cio.h +++ b/drivers/s390/cio/cio.h @@ -102,7 +102,7 @@ struct subchannel { struct schib_config config; } __attribute__ ((aligned(8))); -DECLARE_PER_CPU(struct irb, cio_irb); +DECLARE_PER_CPU_ALIGNED(struct irb, cio_irb); #define to_subchannel(n) container_of(n, struct subchannel, dev) diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index a39a74500e23..aeb93478482f 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -161,6 +161,7 @@ extern const struct attribute_group *zfcp_port_attr_groups[]; extern struct mutex zfcp_sysfs_port_units_mutex; extern struct device_attribute *zfcp_sysfs_sdev_attrs[]; extern struct device_attribute *zfcp_sysfs_shost_attrs[]; +bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port); /* zfcp_unit.c */ extern int zfcp_unit_add(struct zfcp_port *, u64); diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index bdb257eaa2e5..68146b398603 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -124,6 +124,15 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev) zfcp_sdev->erp_action.port = port; + mutex_lock(&zfcp_sysfs_port_units_mutex); + if (zfcp_sysfs_port_is_removing(port)) { + /* port is already gone */ + mutex_unlock(&zfcp_sysfs_port_units_mutex); + put_device(&port->dev); /* undo zfcp_get_port_by_wwpn() */ + return -ENXIO; + } + mutex_unlock(&zfcp_sysfs_port_units_mutex); + unit = zfcp_unit_find(port, zfcp_scsi_dev_lun(sdev)); if (unit) put_device(&unit->dev); diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c index 96a0be13e841..5df597d1b978 100644 --- a/drivers/s390/scsi/zfcp_sysfs.c +++ b/drivers/s390/scsi/zfcp_sysfs.c @@ -237,6 +237,53 @@ static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL, DEFINE_MUTEX(zfcp_sysfs_port_units_mutex); +static void zfcp_sysfs_port_set_removing(struct zfcp_port *const port) +{ + lockdep_assert_held(&zfcp_sysfs_port_units_mutex); + atomic_set(&port->units, -1); +} + +bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port) +{ + lockdep_assert_held(&zfcp_sysfs_port_units_mutex); + return atomic_read(&port->units) == -1; +} + +static bool zfcp_sysfs_port_in_use(struct zfcp_port *const port) +{ + struct zfcp_adapter *const adapter = port->adapter; + unsigned long flags; + struct scsi_device *sdev; + bool in_use = true; + + mutex_lock(&zfcp_sysfs_port_units_mutex); + if (atomic_read(&port->units) > 0) + goto unlock_port_units_mutex; /* zfcp_unit(s) under port */ + + spin_lock_irqsave(adapter->scsi_host->host_lock, flags); + __shost_for_each_device(sdev, adapter->scsi_host) { + const struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev); + + if (sdev->sdev_state == SDEV_DEL || + sdev->sdev_state == SDEV_CANCEL) + continue; + if (zsdev->port != port) + continue; + /* alive scsi_device under port of interest */ + goto unlock_host_lock; + } + + /* port is about to be removed, so no more unit_add or slave_alloc */ + zfcp_sysfs_port_set_removing(port); + in_use = false; + +unlock_host_lock: + spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags); +unlock_port_units_mutex: + mutex_unlock(&zfcp_sysfs_port_units_mutex); + return in_use; +} + static ssize_t zfcp_sysfs_port_remove_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -259,15 +306,11 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev, else retval = 0; - mutex_lock(&zfcp_sysfs_port_units_mutex); - if (atomic_read(&port->units) > 0) { + if (zfcp_sysfs_port_in_use(port)) { retval = -EBUSY; - mutex_unlock(&zfcp_sysfs_port_units_mutex); + put_device(&port->dev); /* undo zfcp_get_port_by_wwpn() */ goto out; } - /* port is about to be removed, so no more unit_add */ - atomic_set(&port->units, -1); - mutex_unlock(&zfcp_sysfs_port_units_mutex); write_lock_irq(&adapter->port_list_lock); list_del(&port->list); diff --git a/drivers/s390/scsi/zfcp_unit.c b/drivers/s390/scsi/zfcp_unit.c index 157d3d203ba1..f00693698abc 100644 --- a/drivers/s390/scsi/zfcp_unit.c +++ b/drivers/s390/scsi/zfcp_unit.c @@ -122,7 +122,7 @@ int zfcp_unit_add(struct zfcp_port *port, u64 fcp_lun) int retval = 0; mutex_lock(&zfcp_sysfs_port_units_mutex); - if (atomic_read(&port->units) == -1) { + if (zfcp_sysfs_port_is_removing(port)) { /* port is already gone */ retval = -ENODEV; goto out; @@ -166,8 +166,14 @@ int zfcp_unit_add(struct zfcp_port *port, u64 fcp_lun) write_lock_irq(&port->unit_list_lock); list_add_tail(&unit->list, &port->unit_list); write_unlock_irq(&port->unit_list_lock); + /* + * lock order: shost->scan_mutex before zfcp_sysfs_port_units_mutex + * due to zfcp_unit_scsi_scan() => zfcp_scsi_slave_alloc() + */ + mutex_unlock(&zfcp_sysfs_port_units_mutex); zfcp_unit_scsi_scan(unit); + return retval; out: mutex_unlock(&zfcp_sysfs_port_units_mutex); diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 1a6f65db615e..ee1f9ee995e5 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -2027,6 +2027,11 @@ static int sas_rediscover_dev(struct domain_device *dev, int phy_id, bool last) if ((SAS_ADDR(sas_addr) == 0) || (res == -ECOMM)) { phy->phy_state = PHY_EMPTY; sas_unregister_devs_sas_addr(dev, phy_id, last); + /* + * Even though the PHY is empty, for convenience we discover + * the PHY to update the PHY info, like negotiated linkrate. + */ + sas_ex_phy_discover(dev, phy_id); return res; } else if (SAS_ADDR(sas_addr) == SAS_ADDR(phy->attached_sas_addr) && dev_type_flutter(type, phy->attached_dev_type)) { diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 4131addfb872..a67950908db1 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -902,7 +902,11 @@ lpfc_linkdown(struct lpfc_hba *phba) lpfc_linkdown_port(vports[i]); } lpfc_destroy_vport_work_array(phba, vports); - /* Clean up any firmware default rpi's */ + + /* Clean up any SLI3 firmware default rpi's */ + if (phba->sli_rev > LPFC_SLI_REV3) + goto skip_unreg_did; + mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mb) { lpfc_unreg_did(phba, 0xffff, LPFC_UNREG_ALL_DFLT_RPIS, mb); @@ -914,6 +918,7 @@ lpfc_linkdown(struct lpfc_hba *phba) } } + skip_unreg_did: /* Setup myDID for link up if we are in pt2pt mode */ if (phba->pport->fc_flag & FC_PT2PT) { phba->pport->fc_myDID = 0; @@ -4647,6 +4652,10 @@ lpfc_unreg_default_rpis(struct lpfc_vport *vport) LPFC_MBOXQ_t *mbox; int rc; + /* Unreg DID is an SLI3 operation. */ + if (phba->sli_rev > LPFC_SLI_REV3) + return; + mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (mbox) { lpfc_unreg_did(phba, vport->vpi, LPFC_UNREG_ALL_DFLT_RPIS, diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index c158967b59d7..d220b4f691c7 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -5939,7 +5939,7 @@ static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) val = rd_nvram_byte(ha, sec_addr); if (val & BIT_7) ddb_index[1] = (val & 0x7f); - + goto exit_boot_info; } else if (is_qla80XX(ha)) { buf = dma_alloc_coherent(&ha->pdev->dev, size, &buf_dma, GFP_KERNEL); diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 62adaca8fb97..91b9eca75b75 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2396,7 +2396,6 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer) int res; struct scsi_device *sdp = sdkp->device; struct scsi_mode_data data; - int disk_ro = get_disk_ro(sdkp->disk); int old_wp = sdkp->write_prot; set_disk_ro(sdkp->disk, 0); @@ -2437,7 +2436,7 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer) "Test WP failed, assume Write Enabled\n"); } else { sdkp->write_prot = ((data.device_specific & 0x80) != 0); - set_disk_ro(sdkp->disk, sdkp->write_prot || disk_ro); + set_disk_ro(sdkp->disk, sdkp->write_prot); if (sdkp->first_scan || old_wp != sdkp->write_prot) { sd_printk(KERN_NOTICE, sdkp, "Write Protect is %s\n", sdkp->write_prot ? "on" : "off"); diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index c94d465de941..7322a17660d1 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4144,19 +4144,19 @@ static u32 ufshcd_find_max_sup_active_icc_level(struct ufs_hba *hba, goto out; } - if (hba->vreg_info.vcc) + if (hba->vreg_info.vcc && hba->vreg_info.vcc->max_uA) icc_level = ufshcd_get_max_icc_level( hba->vreg_info.vcc->max_uA, POWER_DESC_MAX_ACTV_ICC_LVLS - 1, &desc_buf[PWR_DESC_ACTIVE_LVLS_VCC_0]); - if (hba->vreg_info.vccq) + if (hba->vreg_info.vccq && hba->vreg_info.vccq->max_uA) icc_level = ufshcd_get_max_icc_level( hba->vreg_info.vccq->max_uA, icc_level, &desc_buf[PWR_DESC_ACTIVE_LVLS_VCCQ_0]); - if (hba->vreg_info.vccq2) + if (hba->vreg_info.vccq2 && hba->vreg_info.vccq2->max_uA) icc_level = ufshcd_get_max_icc_level( hba->vreg_info.vccq2->max_uA, icc_level, @@ -4390,6 +4390,15 @@ static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg, if (!vreg) return 0; + /* + * "set_load" operation shall be required on those regulators + * which specifically configured current limitation. Otherwise + * zero max_uA may cause unexpected behavior when regulator is + * enabled or set as high power mode. + */ + if (!vreg->max_uA) + return 0; + ret = regulator_set_load(vreg->reg, ua); if (ret < 0) { dev_err(dev, "%s: %s set load (ua=%d) failed, err=%d\n", @@ -4425,12 +4434,15 @@ static int ufshcd_config_vreg(struct device *dev, name = vreg->name; if (regulator_count_voltages(reg) > 0) { - min_uV = on ? vreg->min_uV : 0; - ret = regulator_set_voltage(reg, min_uV, vreg->max_uV); - if (ret) { - dev_err(dev, "%s: %s set voltage failed, err=%d\n", + if (vreg->min_uV && vreg->max_uV) { + min_uV = on ? vreg->min_uV : 0; + ret = regulator_set_voltage(reg, min_uV, vreg->max_uV); + if (ret) { + dev_err(dev, + "%s: %s set voltage failed, err=%d\n", __func__, name, ret); - goto out; + goto out; + } } uA_load = on ? vreg->max_uA : 0; diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 3cac73e4c3e4..e87b6fc9f4c6 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -859,10 +859,14 @@ static unsigned int ssp_get_clk_div(struct driver_data *drv_data, int rate) rate = min_t(int, ssp_clk, rate); + /* + * Calculate the divisor for the SCR (Serial Clock Rate), avoiding + * that the SSP transmission rate can be greater than the device rate + */ if (ssp->type == PXA25x_SSP || ssp->type == CE4100_SSP) - return (ssp_clk / (2 * rate) - 1) & 0xff; + return (DIV_ROUND_UP(ssp_clk, 2 * rate) - 1) & 0xff; else - return (ssp_clk / rate - 1) & 0xfff; + return (DIV_ROUND_UP(ssp_clk, rate) - 1) & 0xfff; } static unsigned int pxa2xx_ssp_get_clk_div(struct driver_data *drv_data, diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 9882d93e7566..0556259377f7 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -279,7 +279,8 @@ static int rspi_set_config_register(struct rspi_data *rspi, int access_size) /* Sets parity, interrupt mask */ rspi_write8(rspi, 0x00, RSPI_SPCR2); - /* Sets SPCMD */ + /* Resets sequencer */ + rspi_write8(rspi, 0, RSPI_SPSCR); rspi->spcmd |= SPCMD_SPB_8_TO_16(access_size); rspi_write16(rspi, rspi->spcmd, RSPI_SPCMD0); @@ -313,7 +314,8 @@ static int rspi_rz_set_config_register(struct rspi_data *rspi, int access_size) rspi_write8(rspi, 0x00, RSPI_SSLND); rspi_write8(rspi, 0x00, RSPI_SPND); - /* Sets SPCMD */ + /* Resets sequencer */ + rspi_write8(rspi, 0, RSPI_SPSCR); rspi->spcmd |= SPCMD_SPB_8_TO_16(access_size); rspi_write16(rspi, rspi->spcmd, RSPI_SPCMD0); @@ -364,7 +366,8 @@ static int qspi_set_config_register(struct rspi_data *rspi, int access_size) /* Sets buffer to allow normal operation */ rspi_write8(rspi, 0x00, QSPI_SPBFCR); - /* Sets SPCMD */ + /* Resets sequencer */ + rspi_write8(rspi, 0, RSPI_SPSCR); rspi_write16(rspi, rspi->spcmd, RSPI_SPCMD0); /* Enables SPI function in master mode */ diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c index 73779cecc3bb..705f515863d4 100644 --- a/drivers/spi/spi-tegra114.c +++ b/drivers/spi/spi-tegra114.c @@ -1067,27 +1067,19 @@ static int tegra_spi_probe(struct platform_device *pdev) spi_irq = platform_get_irq(pdev, 0); tspi->irq = spi_irq; - ret = request_threaded_irq(tspi->irq, tegra_spi_isr, - tegra_spi_isr_thread, IRQF_ONESHOT, - dev_name(&pdev->dev), tspi); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n", - tspi->irq); - goto exit_free_master; - } tspi->clk = devm_clk_get(&pdev->dev, "spi"); if (IS_ERR(tspi->clk)) { dev_err(&pdev->dev, "can not get clock\n"); ret = PTR_ERR(tspi->clk); - goto exit_free_irq; + goto exit_free_master; } tspi->rst = devm_reset_control_get(&pdev->dev, "spi"); if (IS_ERR(tspi->rst)) { dev_err(&pdev->dev, "can not get reset\n"); ret = PTR_ERR(tspi->rst); - goto exit_free_irq; + goto exit_free_master; } tspi->max_buf_size = SPI_FIFO_DEPTH << 2; @@ -1095,7 +1087,7 @@ static int tegra_spi_probe(struct platform_device *pdev) ret = tegra_spi_init_dma_param(tspi, true); if (ret < 0) - goto exit_free_irq; + goto exit_free_master; ret = tegra_spi_init_dma_param(tspi, false); if (ret < 0) goto exit_rx_dma_free; @@ -1117,18 +1109,32 @@ static int tegra_spi_probe(struct platform_device *pdev) dev_err(&pdev->dev, "pm runtime get failed, e = %d\n", ret); goto exit_pm_disable; } + + reset_control_assert(tspi->rst); + udelay(2); + reset_control_deassert(tspi->rst); tspi->def_command1_reg = SPI_M_S; tegra_spi_writel(tspi, tspi->def_command1_reg, SPI_COMMAND1); pm_runtime_put(&pdev->dev); + ret = request_threaded_irq(tspi->irq, tegra_spi_isr, + tegra_spi_isr_thread, IRQF_ONESHOT, + dev_name(&pdev->dev), tspi); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n", + tspi->irq); + goto exit_pm_disable; + } master->dev.of_node = pdev->dev.of_node; ret = devm_spi_register_master(&pdev->dev, master); if (ret < 0) { dev_err(&pdev->dev, "can not register to master err %d\n", ret); - goto exit_pm_disable; + goto exit_free_irq; } return ret; +exit_free_irq: + free_irq(spi_irq, tspi); exit_pm_disable: pm_runtime_disable(&pdev->dev); if (!pm_runtime_status_suspended(&pdev->dev)) @@ -1136,8 +1142,6 @@ exit_pm_disable: tegra_spi_deinit_dma_param(tspi, false); exit_rx_dma_free: tegra_spi_deinit_dma_param(tspi, true); -exit_free_irq: - free_irq(spi_irq, tspi); exit_free_master: spi_master_put(master); return ret; diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c index 93dfcee0f987..9f30a4ab2004 100644 --- a/drivers/spi/spi-topcliff-pch.c +++ b/drivers/spi/spi-topcliff-pch.c @@ -1326,18 +1326,27 @@ static void pch_free_dma_buf(struct pch_spi_board_data *board_dat, return; } -static void pch_alloc_dma_buf(struct pch_spi_board_data *board_dat, +static int pch_alloc_dma_buf(struct pch_spi_board_data *board_dat, struct pch_spi_data *data) { struct pch_spi_dma_ctrl *dma; + int ret; dma = &data->dma; + ret = 0; /* Get Consistent memory for Tx DMA */ dma->tx_buf_virt = dma_alloc_coherent(&board_dat->pdev->dev, PCH_BUF_SIZE, &dma->tx_buf_dma, GFP_KERNEL); + if (!dma->tx_buf_virt) + ret = -ENOMEM; + /* Get Consistent memory for Rx DMA */ dma->rx_buf_virt = dma_alloc_coherent(&board_dat->pdev->dev, PCH_BUF_SIZE, &dma->rx_buf_dma, GFP_KERNEL); + if (!dma->rx_buf_virt) + ret = -ENOMEM; + + return ret; } static int pch_spi_pd_probe(struct platform_device *plat_dev) @@ -1414,7 +1423,9 @@ static int pch_spi_pd_probe(struct platform_device *plat_dev) if (use_dma) { dev_info(&plat_dev->dev, "Use DMA for data transfers\n"); - pch_alloc_dma_buf(board_dat, data); + ret = pch_alloc_dma_buf(board_dat, data); + if (ret) + goto err_spi_register_master; } ret = spi_register_master(master); diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 04fd651f9e3e..c132c676df3a 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -903,6 +903,8 @@ static int spi_map_msg(struct spi_master *master, struct spi_message *msg) if (max_tx || max_rx) { list_for_each_entry(xfer, &msg->transfers, transfer_list) { + if (!xfer->len) + continue; if (!xfer->tx_buf) xfer->tx_buf = master->dummy_tx; if (!xfer->rx_buf) diff --git a/drivers/ssb/bridge_pcmcia_80211.c b/drivers/ssb/bridge_pcmcia_80211.c index d70568ea02d5..2ff7d90e166a 100644 --- a/drivers/ssb/bridge_pcmcia_80211.c +++ b/drivers/ssb/bridge_pcmcia_80211.c @@ -113,16 +113,21 @@ static struct pcmcia_driver ssb_host_pcmcia_driver = { .resume = ssb_host_pcmcia_resume, }; +static int pcmcia_init_failed; + /* * These are not module init/exit functions! * The module_pcmcia_driver() helper cannot be used here. */ int ssb_host_pcmcia_init(void) { - return pcmcia_register_driver(&ssb_host_pcmcia_driver); + pcmcia_init_failed = pcmcia_register_driver(&ssb_host_pcmcia_driver); + + return pcmcia_init_failed; } void ssb_host_pcmcia_exit(void) { - pcmcia_unregister_driver(&ssb_host_pcmcia_driver); + if (!pcmcia_init_failed) + pcmcia_unregister_driver(&ssb_host_pcmcia_driver); } diff --git a/drivers/staging/iio/magnetometer/hmc5843_i2c.c b/drivers/staging/iio/magnetometer/hmc5843_i2c.c index 3e06ceb32059..676a8e329eeb 100644 --- a/drivers/staging/iio/magnetometer/hmc5843_i2c.c +++ b/drivers/staging/iio/magnetometer/hmc5843_i2c.c @@ -59,8 +59,13 @@ static const struct regmap_config hmc5843_i2c_regmap_config = { static int hmc5843_i2c_probe(struct i2c_client *cli, const struct i2c_device_id *id) { + struct regmap *regmap = devm_regmap_init_i2c(cli, + &hmc5843_i2c_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + return hmc5843_common_probe(&cli->dev, - devm_regmap_init_i2c(cli, &hmc5843_i2c_regmap_config), + regmap, id->driver_data, id->name); } diff --git a/drivers/staging/iio/magnetometer/hmc5843_spi.c b/drivers/staging/iio/magnetometer/hmc5843_spi.c index 8be198058ea2..fded442a3c1d 100644 --- a/drivers/staging/iio/magnetometer/hmc5843_spi.c +++ b/drivers/staging/iio/magnetometer/hmc5843_spi.c @@ -59,6 +59,7 @@ static const struct regmap_config hmc5843_spi_regmap_config = { static int hmc5843_spi_probe(struct spi_device *spi) { int ret; + struct regmap *regmap; const struct spi_device_id *id = spi_get_device_id(spi); spi->mode = SPI_MODE_3; @@ -68,8 +69,12 @@ static int hmc5843_spi_probe(struct spi_device *spi) if (ret) return ret; + regmap = devm_regmap_init_spi(spi, &hmc5843_spi_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + return hmc5843_common_probe(&spi->dev, - devm_regmap_init_spi(spi, &hmc5843_spi_regmap_config), + regmap, id->driver_data, id->name); } diff --git a/drivers/tty/ipwireless/main.c b/drivers/tty/ipwireless/main.c index 655c7948261c..2fa4f9123469 100644 --- a/drivers/tty/ipwireless/main.c +++ b/drivers/tty/ipwireless/main.c @@ -113,6 +113,10 @@ static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data) ipw->common_memory = ioremap(p_dev->resource[2]->start, resource_size(p_dev->resource[2])); + if (!ipw->common_memory) { + ret = -ENOMEM; + goto exit1; + } if (!request_mem_region(p_dev->resource[2]->start, resource_size(p_dev->resource[2]), IPWIRELESS_PCCARD_NAME)) { @@ -133,6 +137,10 @@ static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data) ipw->attr_memory = ioremap(p_dev->resource[3]->start, resource_size(p_dev->resource[3])); + if (!ipw->attr_memory) { + ret = -ENOMEM; + goto exit3; + } if (!request_mem_region(p_dev->resource[3]->start, resource_size(p_dev->resource[3]), IPWIRELESS_PCCARD_NAME)) { diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index be55fb6def89..0ac0c618954e 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -571,7 +571,7 @@ static int max310x_set_ref_clk(struct max310x_port *s, unsigned long freq, } /* Configure clock source */ - clksrc = xtal ? MAX310X_CLKSRC_CRYST_BIT : MAX310X_CLKSRC_EXTCLK_BIT; + clksrc = MAX310X_CLKSRC_EXTCLK_BIT | (xtal ? MAX310X_CLKSRC_CRYST_BIT : 0); /* Configure PLL */ if (pllcfg) { diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index 8c4707d5778e..5f0ded6fc4e9 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -703,6 +703,7 @@ static void msm_handle_tx(struct uart_port *port) struct circ_buf *xmit = &msm_port->uart.state->xmit; struct msm_dma *dma = &msm_port->tx_dma; unsigned int pio_count, dma_count, dma_min; + char buf[4] = { 0 }; void __iomem *tf; int err = 0; @@ -712,10 +713,12 @@ static void msm_handle_tx(struct uart_port *port) else tf = port->membase + UART_TF; + buf[0] = port->x_char; + if (msm_port->is_uartdm) msm_reset_dm_count(port, 1); - iowrite8_rep(tf, &port->x_char, 1); + iowrite32_rep(tf, buf, 1); port->icount.tx++; port->x_char = 0; return; diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index 988c564b61a8..fd92c842504d 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -121,6 +121,7 @@ static const int NR_TYPES = ARRAY_SIZE(max_vals); static struct input_handler kbd_handler; static DEFINE_SPINLOCK(kbd_event_lock); static DEFINE_SPINLOCK(led_lock); +static DEFINE_SPINLOCK(func_buf_lock); /* guard 'func_buf' and friends */ static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */ static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ static bool dead_key_next; @@ -1969,11 +1970,12 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) char *p; u_char *q; u_char __user *up; - int sz; + int sz, fnw_sz; int delta; char *first_free, *fj, *fnw; int i, j, k; int ret; + unsigned long flags; if (!capable(CAP_SYS_TTY_CONFIG)) perm = 0; @@ -2016,7 +2018,14 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) goto reterr; } + fnw = NULL; + fnw_sz = 0; + /* race aginst other writers */ + again: + spin_lock_irqsave(&func_buf_lock, flags); q = func_table[i]; + + /* fj pointer to next entry after 'q' */ first_free = funcbufptr + (funcbufsize - funcbufleft); for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++) ; @@ -2024,10 +2033,12 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) fj = func_table[j]; else fj = first_free; - + /* buffer usage increase by new entry */ delta = (q ? -strlen(q) : 1) + strlen(kbs->kb_string); + if (delta <= funcbufleft) { /* it fits in current buf */ if (j < MAX_NR_FUNC) { + /* make enough space for new entry at 'fj' */ memmove(fj + delta, fj, first_free - fj); for (k = j; k < MAX_NR_FUNC; k++) if (func_table[k]) @@ -2040,20 +2051,28 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) sz = 256; while (sz < funcbufsize - funcbufleft + delta) sz <<= 1; - fnw = kmalloc(sz, GFP_KERNEL); - if(!fnw) { - ret = -ENOMEM; - goto reterr; + if (fnw_sz != sz) { + spin_unlock_irqrestore(&func_buf_lock, flags); + kfree(fnw); + fnw = kmalloc(sz, GFP_KERNEL); + fnw_sz = sz; + if (!fnw) { + ret = -ENOMEM; + goto reterr; + } + goto again; } if (!q) func_table[i] = fj; + /* copy data before insertion point to new location */ if (fj > funcbufptr) memmove(fnw, funcbufptr, fj - funcbufptr); for (k = 0; k < j; k++) if (func_table[k]) func_table[k] = fnw + (func_table[k] - funcbufptr); + /* copy data after insertion point to new location */ if (first_free > fj) { memmove(fnw + (fj - funcbufptr) + delta, fj, first_free - fj); for (k = j; k < MAX_NR_FUNC; k++) @@ -2066,7 +2085,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) funcbufleft = funcbufleft - delta + sz - funcbufsize; funcbufsize = sz; } + /* finally insert item itself */ strcpy(func_table[i], kbs->kb_string); + spin_unlock_irqrestore(&func_buf_lock, flags); break; } ret = 0; diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 6a287c81a7be..aef208585544 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -902,8 +902,8 @@ int usb_get_bos_descriptor(struct usb_device *dev) /* Get BOS descriptor */ ret = usb_get_descriptor(dev, USB_DT_BOS, 0, bos, USB_DT_BOS_SIZE); - if (ret < USB_DT_BOS_SIZE) { - dev_err(ddev, "unable to get BOS descriptor\n"); + if (ret < USB_DT_BOS_SIZE || bos->bLength < USB_DT_BOS_SIZE) { + dev_err(ddev, "unable to get BOS descriptor or descriptor too short\n"); if (ret >= 0) ret = -ENOMSG; kfree(bos); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 9c4f9b6e57e2..99c146f4b6b5 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -3007,6 +3007,9 @@ usb_hcd_platform_shutdown(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); + /* No need for pm_runtime_put(), we're shutting down */ + pm_runtime_get_sync(&dev->dev); + if (hcd->driver->shutdown) hcd->driver->shutdown(hcd); } diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 7c87c0b38bcf..6e307de25163 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -5637,7 +5637,10 @@ int usb_reset_device(struct usb_device *udev) cintf->needs_binding = 1; } } - usb_unbind_and_rebind_marked_interfaces(udev); + + /* If the reset failed, hub_wq will unbind drivers later */ + if (ret == 0) + usb_unbind_and_rebind_marked_interfaces(udev); } usb_autosuspend_device(udev); diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 733479ddf8a7..38c7676e7a82 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -64,6 +64,9 @@ static const struct usb_device_id usb_quirk_list[] = { /* Microsoft LifeCam-VX700 v2.0 */ { USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Microsoft Surface Dock Ethernet (RTL8153 GigE) */ + { USB_DEVICE(0x045e, 0x07c6), .driver_info = USB_QUIRK_NO_LPM }, + /* Cherry Stream G230 2.0 (G85-231) and 3.0 (G85-232) */ { USB_DEVICE(0x046a, 0x0023), .driver_info = USB_QUIRK_RESET_RESUME }, diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index e3fdc799ad6e..ed152b8ea645 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -21,6 +21,7 @@ */ #include +#include #include #include #include @@ -46,7 +47,6 @@ static unsigned int quirks; module_param(quirks, uint, S_IRUGO); MODULE_PARM_DESC(quirks, "Bit flags for quirks to be enabled as default"); -/* TODO: copied from ehci-hcd.c - can this be refactored? */ /* * xhci_handshake - spin reading hc until handshake completes or fails * @ptr: address of hc register to be read @@ -63,18 +63,16 @@ MODULE_PARM_DESC(quirks, "Bit flags for quirks to be enabled as default"); int xhci_handshake(void __iomem *ptr, u32 mask, u32 done, int usec) { u32 result; + int ret; - do { - result = readl(ptr); - if (result == ~(u32)0) /* card removed */ - return -ENODEV; - result &= mask; - if (result == done) - return 0; - udelay(1); - usec--; - } while (usec > 0); - return -ETIMEDOUT; + ret = readl_poll_timeout_atomic(ptr, result, + (result & mask) == done || + result == U32_MAX, + 1, usec); + if (result == U32_MAX) /* card removed */ + return -ENODEV; + + return ret; } /* @@ -4193,7 +4191,6 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, pm_addr = port_array[port_num] + PORTPMSC; pm_val = readl(pm_addr); hlpm_addr = port_array[port_num] + PORTHLPMC; - field = le32_to_cpu(udev->bos->ext_cap->bmAttributes); xhci_dbg(xhci, "%s port %d USB2 hardware LPM\n", enable ? "enable" : "disable", port_num + 1); @@ -4205,6 +4202,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, * default one which works with mixed HIRD and BESL * systems. See XHCI_DEFAULT_BESL definition in xhci.h */ + field = le32_to_cpu(udev->bos->ext_cap->bmAttributes); if ((field & USB_BESL_SUPPORT) && (field & USB_BESL_BASELINE_VALID)) hird = USB_GET_BESL_BASELINE(field); diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c index 13731d512624..6e761fabffca 100644 --- a/drivers/usb/misc/rio500.c +++ b/drivers/usb/misc/rio500.c @@ -103,9 +103,22 @@ static int close_rio(struct inode *inode, struct file *file) { struct rio_usb_data *rio = &rio_instance; - rio->isopen = 0; + /* against disconnect() */ + mutex_lock(&rio500_mutex); + mutex_lock(&(rio->lock)); - dev_info(&rio->rio_dev->dev, "Rio closed.\n"); + rio->isopen = 0; + if (!rio->present) { + /* cleanup has been delayed */ + kfree(rio->ibuf); + kfree(rio->obuf); + rio->ibuf = NULL; + rio->obuf = NULL; + } else { + dev_info(&rio->rio_dev->dev, "Rio closed.\n"); + } + mutex_unlock(&(rio->lock)); + mutex_unlock(&rio500_mutex); return 0; } @@ -464,15 +477,23 @@ static int probe_rio(struct usb_interface *intf, { struct usb_device *dev = interface_to_usbdev(intf); struct rio_usb_data *rio = &rio_instance; - int retval; + int retval = 0; - dev_info(&intf->dev, "USB Rio found at address %d\n", dev->devnum); + mutex_lock(&rio500_mutex); + if (rio->present) { + dev_info(&intf->dev, "Second USB Rio at address %d refused\n", dev->devnum); + retval = -EBUSY; + goto bail_out; + } else { + dev_info(&intf->dev, "USB Rio found at address %d\n", dev->devnum); + } retval = usb_register_dev(intf, &usb_rio_class); if (retval) { dev_err(&dev->dev, "Not able to get a minor for this device.\n"); - return -ENOMEM; + retval = -ENOMEM; + goto bail_out; } rio->rio_dev = dev; @@ -481,7 +502,8 @@ static int probe_rio(struct usb_interface *intf, dev_err(&dev->dev, "probe_rio: Not enough memory for the output buffer\n"); usb_deregister_dev(intf, &usb_rio_class); - return -ENOMEM; + retval = -ENOMEM; + goto bail_out; } dev_dbg(&intf->dev, "obuf address:%p\n", rio->obuf); @@ -490,7 +512,8 @@ static int probe_rio(struct usb_interface *intf, "probe_rio: Not enough memory for the input buffer\n"); usb_deregister_dev(intf, &usb_rio_class); kfree(rio->obuf); - return -ENOMEM; + retval = -ENOMEM; + goto bail_out; } dev_dbg(&intf->dev, "ibuf address:%p\n", rio->ibuf); @@ -498,8 +521,10 @@ static int probe_rio(struct usb_interface *intf, usb_set_intfdata (intf, rio); rio->present = 1; +bail_out: + mutex_unlock(&rio500_mutex); - return 0; + return retval; } static void disconnect_rio(struct usb_interface *intf) diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index 306d6852ebc7..b9d50020c684 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -3103,6 +3103,13 @@ static int sisusb_probe(struct usb_interface *intf, mutex_init(&(sisusb->lock)); + sisusb->sisusb_dev = dev; + sisusb->vrambase = SISUSB_PCI_MEMBASE; + sisusb->mmiobase = SISUSB_PCI_MMIOBASE; + sisusb->mmiosize = SISUSB_PCI_MMIOSIZE; + sisusb->ioportbase = SISUSB_PCI_IOPORTBASE; + /* Everything else is zero */ + /* Register device */ retval = usb_register_dev(intf, &usb_sisusb_class); if (retval) { @@ -3112,13 +3119,7 @@ static int sisusb_probe(struct usb_interface *intf, goto error_1; } - sisusb->sisusb_dev = dev; - sisusb->minor = intf->minor; - sisusb->vrambase = SISUSB_PCI_MEMBASE; - sisusb->mmiobase = SISUSB_PCI_MMIOBASE; - sisusb->mmiosize = SISUSB_PCI_MMIOSIZE; - sisusb->ioportbase = SISUSB_PCI_IOPORTBASE; - /* Everything else is zero */ + sisusb->minor = intf->minor; /* Allocate buffers */ sisusb->ibufsize = SISUSB_IBUF_SIZE; diff --git a/drivers/video/fbdev/core/fbcmap.c b/drivers/video/fbdev/core/fbcmap.c index 68a113594808..2811c4afde01 100644 --- a/drivers/video/fbdev/core/fbcmap.c +++ b/drivers/video/fbdev/core/fbcmap.c @@ -94,6 +94,8 @@ int fb_alloc_cmap_gfp(struct fb_cmap *cmap, int len, int transp, gfp_t flags) int size = len * sizeof(u16); int ret = -ENOMEM; + flags |= __GFP_NOWARN; + if (cmap->len != len) { fb_dealloc_cmap(cmap); if (!len) diff --git a/drivers/video/fbdev/core/modedb.c b/drivers/video/fbdev/core/modedb.c index de119f11b78f..455a15f70172 100644 --- a/drivers/video/fbdev/core/modedb.c +++ b/drivers/video/fbdev/core/modedb.c @@ -933,6 +933,9 @@ void fb_var_to_videomode(struct fb_videomode *mode, if (var->vmode & FB_VMODE_DOUBLE) vtotal *= 2; + if (!htotal || !vtotal) + return; + hfreq = pixclock/htotal; mode->refresh = hfreq/vtotal; } diff --git a/drivers/video/fbdev/sm712.h b/drivers/video/fbdev/sm712.h index aad1cc4be34a..c7ebf03b8d53 100644 --- a/drivers/video/fbdev/sm712.h +++ b/drivers/video/fbdev/sm712.h @@ -15,14 +15,10 @@ #define FB_ACCEL_SMI_LYNX 88 -#define SCREEN_X_RES 1024 -#define SCREEN_Y_RES 600 -#define SCREEN_BPP 16 - -/*Assume SM712 graphics chip has 4MB VRAM */ -#define SM712_VIDEOMEMORYSIZE 0x00400000 -/*Assume SM722 graphics chip has 8MB VRAM */ -#define SM722_VIDEOMEMORYSIZE 0x00800000 +#define SCREEN_X_RES 1024 +#define SCREEN_Y_RES_PC 768 +#define SCREEN_Y_RES_NETBOOK 600 +#define SCREEN_BPP 16 #define dac_reg (0x3c8) #define dac_val (0x3c9) diff --git a/drivers/video/fbdev/sm712fb.c b/drivers/video/fbdev/sm712fb.c index 86ae1d4556fc..589ac7e75413 100644 --- a/drivers/video/fbdev/sm712fb.c +++ b/drivers/video/fbdev/sm712fb.c @@ -530,6 +530,65 @@ static const struct modeinit vgamode[] = { 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03, }, }, + { /* 1024 x 768 16Bpp 60Hz */ + 1024, 768, 16, 60, + /* Init_MISC */ + 0xEB, + { /* Init_SR0_SR4 */ + 0x03, 0x01, 0x0F, 0x03, 0x0E, + }, + { /* Init_SR10_SR24 */ + 0xF3, 0xB6, 0xC0, 0xDD, 0x00, 0x0E, 0x17, 0x2C, + 0x99, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xC4, 0x30, 0x02, 0x01, 0x01, + }, + { /* Init_SR30_SR75 */ + 0x38, 0x03, 0x20, 0x09, 0xC0, 0x3A, 0x3A, 0x3A, + 0x3A, 0x3A, 0x3A, 0x3A, 0x00, 0x00, 0x03, 0xFF, + 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC, + 0x20, 0x0C, 0x44, 0x20, 0x00, 0x00, 0x00, 0x3A, + 0x06, 0x68, 0xA7, 0x7F, 0x83, 0x24, 0xFF, 0x03, + 0x0F, 0x60, 0x59, 0x3A, 0x3A, 0x00, 0x00, 0x3A, + 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00, + 0x50, 0x03, 0x74, 0x14, 0x3B, 0x0D, 0x09, 0x02, + 0x04, 0x45, 0x30, 0x30, 0x40, 0x20, + }, + { /* Init_SR80_SR93 */ + 0xFF, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3A, + 0xF7, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x3A, 0x3A, + 0x00, 0x00, 0x00, 0x00, + }, + { /* Init_SRA0_SRAF */ + 0x00, 0xFB, 0x9F, 0x01, 0x00, 0xED, 0xED, 0xED, + 0x7B, 0xFB, 0xFF, 0xFF, 0x97, 0xEF, 0xBF, 0xDF, + }, + { /* Init_GR00_GR08 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, + 0xFF, + }, + { /* Init_AR00_AR14 */ + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x41, 0x00, 0x0F, 0x00, 0x00, + }, + { /* Init_CR00_CR18 */ + 0xA3, 0x7F, 0x7F, 0x00, 0x85, 0x16, 0x24, 0xF5, + 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x03, 0x09, 0xFF, 0x80, 0x40, 0xFF, 0x00, 0xE3, + 0xFF, + }, + { /* Init_CR30_CR4D */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x20, + 0x00, 0x00, 0x00, 0x40, 0x00, 0xFF, 0xBF, 0xFF, + 0xA3, 0x7F, 0x00, 0x86, 0x15, 0x24, 0xFF, 0x00, + 0x01, 0x07, 0xE5, 0x20, 0x7F, 0xFF, + }, + { /* Init_CR90_CRA7 */ + 0x55, 0xD9, 0x5D, 0xE1, 0x86, 0x1B, 0x8E, 0x26, + 0xDA, 0x8D, 0xDE, 0x94, 0x00, 0x00, 0x18, 0x00, + 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03, + }, + }, { /* mode#5: 1024 x 768 24Bpp 60Hz */ 1024, 768, 24, 60, /* Init_MISC */ @@ -827,67 +886,80 @@ static inline unsigned int chan_to_field(unsigned int chan, static int smtc_blank(int blank_mode, struct fb_info *info) { + struct smtcfb_info *sfb = info->par; + /* clear DPMS setting */ switch (blank_mode) { case FB_BLANK_UNBLANK: /* Screen On: HSync: On, VSync : On */ + + switch (sfb->chip_id) { + case 0x710: + case 0x712: + smtc_seqw(0x6a, 0x16); + smtc_seqw(0x6b, 0x02); + break; + case 0x720: + smtc_seqw(0x6a, 0x0d); + smtc_seqw(0x6b, 0x02); + break; + } + + smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0))); smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20))); - smtc_seqw(0x6a, 0x16); - smtc_seqw(0x6b, 0x02); smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77)); smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30))); - smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0))); - smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01)); smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03)); + smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01)); break; case FB_BLANK_NORMAL: /* Screen Off: HSync: On, VSync : On Soft blank */ + smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01)); + smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); + smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0))); smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20))); + smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30))); smtc_seqw(0x6a, 0x16); smtc_seqw(0x6b, 0x02); - smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30))); - smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0))); - smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01)); - smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); break; case FB_BLANK_VSYNC_SUSPEND: /* Screen On: HSync: On, VSync : Off */ + smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); + smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); + smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20)); smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); - smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); - smtc_seqw(0x6a, 0x0c); - smtc_seqw(0x6b, 0x02); smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); + smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20)); - smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20)); - smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); - smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); + smtc_seqw(0x6a, 0x0c); + smtc_seqw(0x6b, 0x02); break; case FB_BLANK_HSYNC_SUSPEND: /* Screen On: HSync: Off, VSync : On */ + smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); + smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); + smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8)); smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); - smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); - smtc_seqw(0x6a, 0x0c); - smtc_seqw(0x6b, 0x02); smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); + smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10)); - smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8)); - smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); - smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); + smtc_seqw(0x6a, 0x0c); + smtc_seqw(0x6b, 0x02); break; case FB_BLANK_POWERDOWN: /* Screen On: HSync: Off, VSync : Off */ + smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); + smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); + smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8)); smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); - smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); - smtc_seqw(0x6a, 0x0c); - smtc_seqw(0x6b, 0x02); smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); + smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30)); - smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8)); - smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); - smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); + smtc_seqw(0x6a, 0x0c); + smtc_seqw(0x6b, 0x02); break; default: return -EINVAL; @@ -1144,8 +1216,10 @@ static void sm7xx_set_timing(struct smtcfb_info *sfb) /* init SEQ register SR30 - SR75 */ for (i = 0; i < SIZE_SR30_SR75; i++) - if ((i + 0x30) != 0x62 && (i + 0x30) != 0x6a && - (i + 0x30) != 0x6b) + if ((i + 0x30) != 0x30 && (i + 0x30) != 0x62 && + (i + 0x30) != 0x6a && (i + 0x30) != 0x6b && + (i + 0x30) != 0x70 && (i + 0x30) != 0x71 && + (i + 0x30) != 0x74 && (i + 0x30) != 0x75) smtc_seqw(i + 0x30, vgamode[j].init_sr30_sr75[i]); @@ -1170,8 +1244,12 @@ static void sm7xx_set_timing(struct smtcfb_info *sfb) smtc_crtcw(i, vgamode[j].init_cr00_cr18[i]); /* init CRTC register CR30 - CR4D */ - for (i = 0; i < SIZE_CR30_CR4D; i++) + for (i = 0; i < SIZE_CR30_CR4D; i++) { + if ((i + 0x30) >= 0x3B && (i + 0x30) <= 0x3F) + /* side-effect, don't write to CR3B-CR3F */ + continue; smtc_crtcw(i + 0x30, vgamode[j].init_cr30_cr4d[i]); + } /* init CRTC register CR90 - CRA7 */ for (i = 0; i < SIZE_CR90_CRA7; i++) @@ -1322,6 +1400,11 @@ static int smtc_map_smem(struct smtcfb_info *sfb, { sfb->fb->fix.smem_start = pci_resource_start(pdev, 0); + if (sfb->chip_id == 0x720) + /* on SM720, the framebuffer starts at the 1 MB offset */ + sfb->fb->fix.smem_start += 0x00200000; + + /* XXX: is it safe for SM720 on Big-Endian? */ if (sfb->fb->var.bits_per_pixel == 32) sfb->fb->fix.smem_start += big_addr; @@ -1359,12 +1442,82 @@ static inline void sm7xx_init_hw(void) outb_p(0x11, 0x3c5); } +static u_long sm7xx_vram_probe(struct smtcfb_info *sfb) +{ + u8 vram; + + switch (sfb->chip_id) { + case 0x710: + case 0x712: + /* + * Assume SM712 graphics chip has 4MB VRAM. + * + * FIXME: SM712 can have 2MB VRAM, which is used on earlier + * laptops, such as IBM Thinkpad 240X. This driver would + * probably crash on those machines. If anyone gets one of + * those and is willing to help, run "git blame" and send me + * an E-mail. + */ + return 0x00400000; + case 0x720: + outb_p(0x76, 0x3c4); + vram = inb_p(0x3c5) >> 6; + + if (vram == 0x00) + return 0x00800000; /* 8 MB */ + else if (vram == 0x01) + return 0x01000000; /* 16 MB */ + else if (vram == 0x02) + return 0x00400000; /* illegal, fallback to 4 MB */ + else if (vram == 0x03) + return 0x00400000; /* 4 MB */ + } + return 0; /* unknown hardware */ +} + +static void sm7xx_resolution_probe(struct smtcfb_info *sfb) +{ + /* get mode parameter from smtc_scr_info */ + if (smtc_scr_info.lfb_width != 0) { + sfb->fb->var.xres = smtc_scr_info.lfb_width; + sfb->fb->var.yres = smtc_scr_info.lfb_height; + sfb->fb->var.bits_per_pixel = smtc_scr_info.lfb_depth; + goto final; + } + + /* + * No parameter, default resolution is 1024x768-16. + * + * FIXME: earlier laptops, such as IBM Thinkpad 240X, has a 800x600 + * panel, also see the comments about Thinkpad 240X above. + */ + sfb->fb->var.xres = SCREEN_X_RES; + sfb->fb->var.yres = SCREEN_Y_RES_PC; + sfb->fb->var.bits_per_pixel = SCREEN_BPP; + +#ifdef CONFIG_MIPS + /* + * Loongson MIPS netbooks use 1024x600 LCD panels, which is the original + * target platform of this driver, but nearly all old x86 laptops have + * 1024x768. Lighting 768 panels using 600's timings would partially + * garble the display, so we don't want that. But it's not possible to + * distinguish them reliably. + * + * So we change the default to 768, but keep 600 as-is on MIPS. + */ + sfb->fb->var.yres = SCREEN_Y_RES_NETBOOK; +#endif + +final: + big_pixel_depth(sfb->fb->var.bits_per_pixel, smtc_scr_info.lfb_depth); +} + static int smtcfb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct smtcfb_info *sfb; struct fb_info *info; - u_long smem_size = 0x00800000; /* default 8MB */ + u_long smem_size; int err; unsigned long mmio_base; @@ -1404,29 +1557,19 @@ static int smtcfb_pci_probe(struct pci_dev *pdev, sm7xx_init_hw(); - /* get mode parameter from smtc_scr_info */ - if (smtc_scr_info.lfb_width != 0) { - sfb->fb->var.xres = smtc_scr_info.lfb_width; - sfb->fb->var.yres = smtc_scr_info.lfb_height; - sfb->fb->var.bits_per_pixel = smtc_scr_info.lfb_depth; - } else { - /* default resolution 1024x600 16bit mode */ - sfb->fb->var.xres = SCREEN_X_RES; - sfb->fb->var.yres = SCREEN_Y_RES; - sfb->fb->var.bits_per_pixel = SCREEN_BPP; - } - - big_pixel_depth(sfb->fb->var.bits_per_pixel, smtc_scr_info.lfb_depth); /* Map address and memory detection */ mmio_base = pci_resource_start(pdev, 0); pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chip_rev_id); + smem_size = sm7xx_vram_probe(sfb); + dev_info(&pdev->dev, "%lu MiB of VRAM detected.\n", + smem_size / 1048576); + switch (sfb->chip_id) { case 0x710: case 0x712: sfb->fb->fix.mmio_start = mmio_base + 0x00400000; sfb->fb->fix.mmio_len = 0x00400000; - smem_size = SM712_VIDEOMEMORYSIZE; sfb->lfb = ioremap(mmio_base, mmio_addr); if (!sfb->lfb) { dev_err(&pdev->dev, @@ -1458,8 +1601,7 @@ static int smtcfb_pci_probe(struct pci_dev *pdev, case 0x720: sfb->fb->fix.mmio_start = mmio_base; sfb->fb->fix.mmio_len = 0x00200000; - smem_size = SM722_VIDEOMEMORYSIZE; - sfb->dp_regs = ioremap(mmio_base, 0x00a00000); + sfb->dp_regs = ioremap(mmio_base, 0x00200000 + smem_size); sfb->lfb = sfb->dp_regs + 0x00200000; sfb->mmio = (smtc_regbaseaddress = sfb->dp_regs + 0x000c0000); @@ -1476,6 +1618,9 @@ static int smtcfb_pci_probe(struct pci_dev *pdev, goto failed_fb; } + /* probe and decide resolution */ + sm7xx_resolution_probe(sfb); + /* can support 32 bpp */ if (15 == sfb->fb->var.bits_per_pixel) sfb->fb->var.bits_per_pixel = 16; @@ -1486,7 +1631,11 @@ static int smtcfb_pci_probe(struct pci_dev *pdev, if (err) goto failed; - smtcfb_setmode(sfb); + /* + * The screen would be temporarily garbled when sm712fb takes over + * vesafb or VGA text mode. Zero the framebuffer. + */ + memset_io(sfb->lfb, 0, sfb->fb->fix.smem_len); err = register_framebuffer(info); if (err < 0) diff --git a/drivers/w1/w1_io.c b/drivers/w1/w1_io.c index 282092421cc9..1a9d9ec8db4d 100644 --- a/drivers/w1/w1_io.c +++ b/drivers/w1/w1_io.c @@ -437,8 +437,7 @@ int w1_reset_resume_command(struct w1_master *dev) if (w1_reset_bus(dev)) return -1; - /* This will make only the last matched slave perform a skip ROM. */ - w1_write_8(dev, W1_RESUME_CMD); + w1_write_8(dev, dev->slave_count > 1 ? W1_RESUME_CMD : W1_SKIP_ROM); return 0; } EXPORT_SYMBOL_GPL(w1_reset_resume_command); diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c index fb0221434f81..49c5f0e9600a 100644 --- a/drivers/xen/xen-pciback/pciback_ops.c +++ b/drivers/xen/xen-pciback/pciback_ops.c @@ -126,8 +126,6 @@ void xen_pcibk_reset_device(struct pci_dev *dev) if (pci_is_enabled(dev)) pci_disable_device(dev); - pci_write_config_word(dev, PCI_COMMAND, 0); - dev->is_busmaster = 0; } else { pci_read_config_word(dev, PCI_COMMAND, &cmd); diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c index 816a0e08ef10..d7591efa7775 100644 --- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -536,7 +536,7 @@ static int xenbus_file_open(struct inode *inode, struct file *filp) if (xen_store_evtchn == 0) return -ENOENT; - nonseekable_open(inode, filp); + stream_open(inode, filp); u = kzalloc(sizeof(*u), GFP_KERNEL); if (u == NULL) diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index e2f659dc5745..81c5d07a2af1 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1685,13 +1685,19 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info, extent_item_objectid); if (!search_commit_root) { - trans = btrfs_join_transaction(fs_info->extent_root); - if (IS_ERR(trans)) - return PTR_ERR(trans); + trans = btrfs_attach_transaction(fs_info->extent_root); + if (IS_ERR(trans)) { + if (PTR_ERR(trans) != -ENOENT && + PTR_ERR(trans) != -EROFS) + return PTR_ERR(trans); + trans = NULL; + } + } + + if (trans) btrfs_get_tree_mod_seq(fs_info, &tree_mod_seq_elem); - } else { + else down_read(&fs_info->commit_root_sem); - } ret = btrfs_find_all_leafs(trans, fs_info, extent_item_objectid, tree_mod_seq_elem.seq, &refs, @@ -1721,7 +1727,7 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info, free_leaf_list(refs); out: - if (!search_commit_root) { + if (trans) { btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem); btrfs_end_transaction(trans, fs_info->extent_root); } else { diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 978bbfed5a2c..df2bb4b61a00 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -10730,9 +10730,9 @@ int btrfs_error_unpin_extent_range(struct btrfs_root *root, u64 start, u64 end) * transaction. */ static int btrfs_trim_free_extents(struct btrfs_device *device, - u64 minlen, u64 *trimmed) + struct fstrim_range *range, u64 *trimmed) { - u64 start = 0, len = 0; + u64 start = range->start, len = 0; int ret; *trimmed = 0; @@ -10768,8 +10768,8 @@ static int btrfs_trim_free_extents(struct btrfs_device *device, atomic_inc(&trans->use_count); spin_unlock(&fs_info->trans_lock); - ret = find_free_dev_extent_start(trans, device, minlen, start, - &start, &len); + ret = find_free_dev_extent_start(trans, device, range->minlen, + start, &start, &len); if (trans) btrfs_put_transaction(trans); @@ -10781,6 +10781,16 @@ static int btrfs_trim_free_extents(struct btrfs_device *device, break; } + /* If we are out of the passed range break */ + if (start > range->start + range->len - 1) { + mutex_unlock(&fs_info->chunk_mutex); + ret = 0; + break; + } + + start = max(range->start, start); + len = min(range->len, len); + ret = btrfs_issue_discard(device->bdev, start, len, &bytes); up_read(&fs_info->commit_root_sem); mutex_unlock(&fs_info->chunk_mutex); @@ -10791,6 +10801,10 @@ static int btrfs_trim_free_extents(struct btrfs_device *device, start += len; *trimmed += bytes; + /* We've trimmed enough */ + if (*trimmed >= range->len) + break; + if (fatal_signal_pending(current)) { ret = -ERESTARTSYS; break; @@ -10857,8 +10871,7 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range) mutex_lock(&root->fs_info->fs_devices->device_list_mutex); devices = &root->fs_info->fs_devices->devices; list_for_each_entry(device, devices, dev_list) { - ret = btrfs_trim_free_extents(device, range->minlen, - &group_trimmed); + ret = btrfs_trim_free_extents(device, range, &group_trimmed); if (ret) break; diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 052973620595..d056060529f8 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1900,6 +1900,18 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) bool full_sync = 0; u64 len; + /* + * If the inode needs a full sync, make sure we use a full range to + * avoid log tree corruption, due to hole detection racing with ordered + * extent completion for adjacent ranges, and assertion failures during + * hole detection. + */ + if (test_bit(BTRFS_INODE_NEEDS_FULL_SYNC, + &BTRFS_I(inode)->runtime_flags)) { + start = 0; + end = LLONG_MAX; + } + /* * The range length can be represented by u64, we have to do the typecasts * to avoid signed overflow if it's [0, LLONG_MAX] eg. from fsync() diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index e0ac85949067..e6aaa15505c5 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -733,7 +733,12 @@ int btrfs_sysfs_add_fsid(struct btrfs_fs_devices *fs_devs, fs_devs->fsid_kobj.kset = btrfs_kset; error = kobject_init_and_add(&fs_devs->fsid_kobj, &btrfs_ktype, parent, "%pU", fs_devs->fsid); - return error; + if (error) { + kobject_put(&fs_devs->fsid_kobj); + return error; + } + + return 0; } int btrfs_sysfs_add_mounted(struct btrfs_fs_info *fs_info) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index c7190f322576..57a46093656a 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2808,6 +2808,12 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, root->log_transid++; log->log_transid = root->log_transid; root->log_start_pid = 0; + /* + * Update or create log root item under the root's log_mutex to prevent + * races with concurrent log syncs that can lead to failure to update + * log root item because it was not created yet. + */ + ret = update_log_root(trans, log); /* * IO has been started, blocks of the log tree have WRITTEN flag set * in their headers. new modifications of the log will be written to @@ -2827,8 +2833,6 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, mutex_unlock(&log_root_tree->log_mutex); - ret = update_log_root(trans, log); - mutex_lock(&log_root_tree->log_mutex); if (atomic_dec_and_test(&log_root_tree->log_writers)) { /* diff --git a/fs/ceph/super.c b/fs/ceph/super.c index f446afada328..ab8a8c9c74f2 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -712,6 +712,12 @@ static void ceph_umount_begin(struct super_block *sb) return; } +static int ceph_remount(struct super_block *sb, int *flags, char *data) +{ + sync_filesystem(sb); + return 0; +} + static const struct super_operations ceph_super_ops = { .alloc_inode = ceph_alloc_inode, .destroy_inode = ceph_destroy_inode, @@ -719,6 +725,7 @@ static const struct super_operations ceph_super_ops = { .drop_inode = ceph_drop_inode, .sync_fs = ceph_sync_fs, .put_super = ceph_put_super, + .remount_fs = ceph_remount, .show_options = ceph_show_options, .statfs = ceph_statfs, .umount_begin = ceph_umount_begin, diff --git a/fs/char_dev.c b/fs/char_dev.c index 24b142569ca9..d0655ca89481 100644 --- a/fs/char_dev.c +++ b/fs/char_dev.c @@ -130,6 +130,12 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor, ret = -EBUSY; goto out; } + + if (new_min < old_min && new_max > old_max) { + ret = -EBUSY; + goto out; + } + } cd->next = *cp; diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 23a8374fa97f..309c134fb66f 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -2829,7 +2829,9 @@ cifs_read_allocate_pages(struct cifs_readdata *rdata, unsigned int nr_pages) } if (rc) { - for (i = 0; i < nr_pages; i++) { + unsigned int nr_page_failed = i; + + for (i = 0; i < nr_page_failed; i++) { put_page(rdata->pages[i]); rdata->pages[i] = NULL; } diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index eae3cdffaf7f..591c93de8c20 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1329,26 +1329,28 @@ smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, unsigned int epoch, bool *purge_cache) { char message[5] = {0}; + unsigned int new_oplock = 0; oplock &= 0xFF; if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE) return; - cinode->oplock = 0; if (oplock & SMB2_LEASE_READ_CACHING_HE) { - cinode->oplock |= CIFS_CACHE_READ_FLG; + new_oplock |= CIFS_CACHE_READ_FLG; strcat(message, "R"); } if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) { - cinode->oplock |= CIFS_CACHE_HANDLE_FLG; + new_oplock |= CIFS_CACHE_HANDLE_FLG; strcat(message, "H"); } if (oplock & SMB2_LEASE_WRITE_CACHING_HE) { - cinode->oplock |= CIFS_CACHE_WRITE_FLG; + new_oplock |= CIFS_CACHE_WRITE_FLG; strcat(message, "W"); } - if (!cinode->oplock) - strcat(message, "None"); + if (!new_oplock) + strncpy(message, "None", sizeof(message)); + + cinode->oplock = new_oplock; cifs_dbg(FYI, "%s Lease granted on inode %p\n", message, &cinode->vfs_inode); } diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 1708597659a1..8d98c9ac9205 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -1049,6 +1049,7 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, __le32 border; ext4_fsblk_t *ablocks = NULL; /* array of allocated blocks */ int err = 0; + size_t ext_size = 0; /* make decision: where to split? */ /* FIXME: now decision is simplest: at current extent */ @@ -1140,6 +1141,10 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, le16_add_cpu(&neh->eh_entries, m); } + /* zero out unused area in the extent block */ + ext_size = sizeof(struct ext4_extent_header) + + sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries); + memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size); ext4_extent_block_csum_set(inode, neh); set_buffer_uptodate(bh); unlock_buffer(bh); @@ -1219,6 +1224,11 @@ static int ext4_ext_split(handle_t *handle, struct inode *inode, sizeof(struct ext4_extent_idx) * m); le16_add_cpu(&neh->eh_entries, m); } + /* zero out unused area in the extent block */ + ext_size = sizeof(struct ext4_extent_header) + + (sizeof(struct ext4_extent) * le16_to_cpu(neh->eh_entries)); + memset(bh->b_data + ext_size, 0, + inode->i_sb->s_blocksize - ext_size); ext4_extent_block_csum_set(inode, neh); set_buffer_uptodate(bh); unlock_buffer(bh); @@ -1284,6 +1294,7 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode, ext4_fsblk_t newblock, goal = 0; struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es; int err = 0; + size_t ext_size = 0; /* Try to prepend new index to old one */ if (ext_depth(inode)) @@ -1309,9 +1320,11 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode, goto out; } + ext_size = sizeof(EXT4_I(inode)->i_data); /* move top-level index/leaf into new block */ - memmove(bh->b_data, EXT4_I(inode)->i_data, - sizeof(EXT4_I(inode)->i_data)); + memmove(bh->b_data, EXT4_I(inode)->i_data, ext_size); + /* zero out unused area in the extent block */ + memset(bh->b_data + ext_size, 0, inode->i_sb->s_blocksize - ext_size); /* set size of new block */ neh = ext_block_hdr(bh); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 181db3c7f5d1..063c5991f095 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4944,7 +4944,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) up_write(&EXT4_I(inode)->i_data_sem); ext4_journal_stop(handle); if (error) { - if (orphan) + if (orphan && inode->i_nlink) ext4_orphan_del(NULL, inode); goto err_out; } diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index e44e3cd738b6..b02f210ea617 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -577,7 +577,7 @@ group_add_out: if (err == 0) err = err2; mnt_drop_write_file(filp); - if (!err && (o_group > EXT4_SB(sb)->s_groups_count) && + if (!err && (o_group < EXT4_SB(sb)->s_groups_count) && ext4_has_group_desc_csum(sb) && test_opt(sb, INIT_INODE_TABLE)) err = ext4_register_li_request(sb, o_group); diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 6a7df72cb3da..6f00388a1471 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3867,7 +3867,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) "data=, fs mounted w/o journal"); goto failed_mount_wq; } - sbi->s_def_mount_opt &= EXT4_MOUNT_JOURNAL_CHECKSUM; + sbi->s_def_mount_opt &= ~EXT4_MOUNT_JOURNAL_CHECKSUM; clear_opt(sb, JOURNAL_CHECKSUM); clear_opt(sb, DATA_FLAGS); sbi->s_journal = NULL; diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index cfb75dbb96f5..76597dd8cfe8 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -331,11 +331,22 @@ struct inode_switch_wbs_context { struct work_struct work; }; +static void bdi_down_write_wb_switch_rwsem(struct backing_dev_info *bdi) +{ + down_write(&bdi->wb_switch_rwsem); +} + +static void bdi_up_write_wb_switch_rwsem(struct backing_dev_info *bdi) +{ + up_write(&bdi->wb_switch_rwsem); +} + static void inode_switch_wbs_work_fn(struct work_struct *work) { struct inode_switch_wbs_context *isw = container_of(work, struct inode_switch_wbs_context, work); struct inode *inode = isw->inode; + struct backing_dev_info *bdi = inode_to_bdi(inode); struct address_space *mapping = inode->i_mapping; struct bdi_writeback *old_wb = inode->i_wb; struct bdi_writeback *new_wb = isw->new_wb; @@ -343,6 +354,12 @@ static void inode_switch_wbs_work_fn(struct work_struct *work) bool switched = false; void **slot; + /* + * If @inode switches cgwb membership while sync_inodes_sb() is + * being issued, sync_inodes_sb() might miss it. Synchronize. + */ + down_read(&bdi->wb_switch_rwsem); + /* * By the time control reaches here, RCU grace period has passed * since I_WB_SWITCH assertion and all wb stat update transactions @@ -435,6 +452,8 @@ skip_switch: spin_unlock(&new_wb->list_lock); spin_unlock(&old_wb->list_lock); + up_read(&bdi->wb_switch_rwsem); + if (switched) { wb_wakeup(new_wb); wb_put(old_wb); @@ -475,9 +494,18 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id) if (inode->i_state & I_WB_SWITCH) return; + /* + * Avoid starting new switches while sync_inodes_sb() is in + * progress. Otherwise, if the down_write protected issue path + * blocks heavily, we might end up starting a large number of + * switches which will block on the rwsem. + */ + if (!down_read_trylock(&bdi->wb_switch_rwsem)) + return; + isw = kzalloc(sizeof(*isw), GFP_ATOMIC); if (!isw) - return; + goto out_unlock; /* find and pin the new wb */ rcu_read_lock(); @@ -502,8 +530,6 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id) ihold(inode); isw->inode = inode; - atomic_inc(&isw_nr_in_flight); - /* * In addition to synchronizing among switchers, I_WB_SWITCH tells * the RCU protected stat update paths to grab the mapping's @@ -511,12 +537,17 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id) * Let's continue after I_WB_SWITCH is guaranteed to be visible. */ call_rcu(&isw->rcu_head, inode_switch_wbs_rcu_fn); - return; + + atomic_inc(&isw_nr_in_flight); + + goto out_unlock; out_free: if (isw->new_wb) wb_put(isw->new_wb); kfree(isw); +out_unlock: + up_read(&bdi->wb_switch_rwsem); } /** @@ -880,7 +911,11 @@ restart: void cgroup_writeback_umount(void) { if (atomic_read(&isw_nr_in_flight)) { - synchronize_rcu(); + /* + * Use rcu_barrier() to wait for all pending callbacks to + * ensure that all in-flight wb switches are in the workqueue. + */ + rcu_barrier(); flush_workqueue(isw_wq); } } @@ -896,6 +931,9 @@ fs_initcall(cgroup_writeback_init); #else /* CONFIG_CGROUP_WRITEBACK */ +static void bdi_down_write_wb_switch_rwsem(struct backing_dev_info *bdi) { } +static void bdi_up_write_wb_switch_rwsem(struct backing_dev_info *bdi) { } + static struct bdi_writeback * locked_inode_to_wb_and_lock_list(struct inode *inode) __releases(&inode->i_lock) @@ -2341,8 +2379,11 @@ void sync_inodes_sb(struct super_block *sb) return; WARN_ON(!rwsem_is_locked(&sb->s_umount)); + /* protect against inode wb switch, see inode_switch_wbs_work_fn() */ + bdi_down_write_wb_switch_rwsem(bdi); bdi_split_work_to_wbs(bdi, &work, false); wb_wait_for_completion(bdi, &done); + bdi_up_write_wb_switch_rwsem(bdi); wait_sb_inodes(sb); } diff --git a/fs/fuse/file.c b/fs/fuse/file.c index d40c2451487c..ab93c4591f8c 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -178,7 +178,9 @@ void fuse_finish_open(struct inode *inode, struct file *file) file->f_op = &fuse_direct_io_file_operations; if (!(ff->open_flags & FOPEN_KEEP_CACHE)) invalidate_inode_pages2(inode->i_mapping); - if (ff->open_flags & FOPEN_NONSEEKABLE) + if (ff->open_flags & FOPEN_STREAM) + stream_open(inode, file); + else if (ff->open_flags & FOPEN_NONSEEKABLE) nonseekable_open(inode, file); if (fc->atomic_o_trunc && (file->f_flags & O_TRUNC)) { struct fuse_inode *fi = get_fuse_inode(inode); @@ -1533,7 +1535,7 @@ __acquires(fc->lock) { struct fuse_conn *fc = get_fuse_conn(inode); struct fuse_inode *fi = get_fuse_inode(inode); - size_t crop = i_size_read(inode); + loff_t crop = i_size_read(inode); struct fuse_req *req; while (fi->writectr >= 0 && !list_empty(&fi->queued_writes)) { @@ -2947,6 +2949,13 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset, } } + if (!(mode & FALLOC_FL_KEEP_SIZE) && + offset + length > i_size_read(inode)) { + err = inode_newsize_ok(inode, offset + length); + if (err) + goto out; + } + if (!(mode & FALLOC_FL_KEEP_SIZE)) set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state); diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 09a0cf5f3dd8..1eb737c466dd 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -136,22 +136,26 @@ static int demote_ok(const struct gfs2_glock *gl) void gfs2_glock_add_to_lru(struct gfs2_glock *gl) { + if (!(gl->gl_ops->go_flags & GLOF_LRU)) + return; + spin_lock(&lru_lock); - if (!list_empty(&gl->gl_lru)) - list_del_init(&gl->gl_lru); - else + list_del(&gl->gl_lru); + list_add_tail(&gl->gl_lru, &lru_list); + + if (!test_bit(GLF_LRU, &gl->gl_flags)) { + set_bit(GLF_LRU, &gl->gl_flags); atomic_inc(&lru_count); + } - list_add_tail(&gl->gl_lru, &lru_list); - set_bit(GLF_LRU, &gl->gl_flags); spin_unlock(&lru_lock); } static void gfs2_glock_remove_from_lru(struct gfs2_glock *gl) { spin_lock(&lru_lock); - if (!list_empty(&gl->gl_lru)) { + if (test_bit(GLF_LRU, &gl->gl_flags)) { list_del_init(&gl->gl_lru); atomic_dec(&lru_count); clear_bit(GLF_LRU, &gl->gl_flags); @@ -1040,8 +1044,7 @@ void gfs2_glock_dq(struct gfs2_holder *gh) !test_bit(GLF_DEMOTE, &gl->gl_flags)) fast_path = 1; } - if (!test_bit(GLF_LFLUSH, &gl->gl_flags) && demote_ok(gl) && - (glops->go_flags & GLOF_LRU)) + if (!test_bit(GLF_LFLUSH, &gl->gl_flags) && demote_ok(gl)) gfs2_glock_add_to_lru(gl); trace_gfs2_glock_queue(gh, 0); @@ -1341,6 +1344,7 @@ __acquires(&lru_lock) if (!spin_trylock(&gl->gl_lockref.lock)) { add_back_to_lru: list_add(&gl->gl_lru, &lru_list); + set_bit(GLF_LRU, &gl->gl_flags); atomic_inc(&lru_count); continue; } @@ -1348,7 +1352,6 @@ add_back_to_lru: spin_unlock(&gl->gl_lockref.lock); goto add_back_to_lru; } - clear_bit(GLF_LRU, &gl->gl_flags); gl->gl_lockref.count++; if (demote_ok(gl)) handle_callback(gl, LM_ST_UNLOCKED, 0, false); @@ -1384,6 +1387,7 @@ static long gfs2_scan_glock_lru(int nr) if (!test_bit(GLF_LOCK, &gl->gl_flags)) { list_move(&gl->gl_lru, &dispose); atomic_dec(&lru_count); + clear_bit(GLF_LRU, &gl->gl_flags); freed++; continue; } diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c index 8b907c5cc913..3c3d037df824 100644 --- a/fs/gfs2/lock_dlm.c +++ b/fs/gfs2/lock_dlm.c @@ -32,9 +32,10 @@ extern struct workqueue_struct *gfs2_control_wq; * @delta is the difference between the current rtt sample and the * running average srtt. We add 1/8 of that to the srtt in order to * update the current srtt estimate. The variance estimate is a bit - * more complicated. We subtract the abs value of the @delta from - * the current variance estimate and add 1/4 of that to the running - * total. + * more complicated. We subtract the current variance estimate from + * the abs value of the @delta and add 1/4 of that to the running + * total. That's equivalent to 3/4 of the current variance + * estimate plus 1/4 of the abs of @delta. * * Note that the index points at the array entry containing the smoothed * mean value, and the variance is always in the following entry @@ -50,7 +51,7 @@ static inline void gfs2_update_stats(struct gfs2_lkstats *s, unsigned index, s64 delta = sample - s->stats[index]; s->stats[index] += (delta >> 3); index++; - s->stats[index] += ((abs(delta) - s->stats[index]) >> 2); + s->stats[index] += (s64)(abs(delta) - s->stats[index]) >> 2; } /** diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 27c4e2ac39a9..937c6ee1786f 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -414,9 +414,7 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart, if (next >= end) break; - hash = hugetlb_fault_mutex_hash(h, current->mm, - &pseudo_vma, - mapping, next, 0); + hash = hugetlb_fault_mutex_hash(h, mapping, next, 0); mutex_lock(&hugetlb_fault_mutex_table[hash]); lock_page(page); @@ -569,7 +567,6 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset, struct address_space *mapping = inode->i_mapping; struct hstate *h = hstate_inode(inode); struct vm_area_struct pseudo_vma; - struct mm_struct *mm = current->mm; loff_t hpage_size = huge_page_size(h); unsigned long hpage_shift = huge_page_shift(h); pgoff_t start, index, end; @@ -633,8 +630,7 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset, addr = index * hpage_size; /* mutex taken here, fault path and hole punch */ - hash = hugetlb_fault_mutex_hash(h, mm, &pseudo_vma, mapping, - index, addr); + hash = hugetlb_fault_mutex_hash(h, mapping, index, addr); mutex_lock(&hugetlb_fault_mutex_table[hash]); /* See if already present in mapping to avoid alloc/free */ diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 44f5cea49699..5be61affeefd 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -140,6 +140,10 @@ int nfs40_discover_server_trunking(struct nfs_client *clp, /* Sustain the lease, even if it's empty. If the clientid4 * goes stale it's of no use for trunking discovery. */ nfs4_schedule_state_renewal(*result); + + /* If the client state need to recover, do it. */ + if (clp->cl_state) + nfs4_schedule_state_manager(clp); } out: return status; diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c index 3494e220b510..bed15dec3c16 100644 --- a/fs/ocfs2/export.c +++ b/fs/ocfs2/export.c @@ -148,16 +148,24 @@ static struct dentry *ocfs2_get_parent(struct dentry *child) u64 blkno; struct dentry *parent; struct inode *dir = d_inode(child); + int set; trace_ocfs2_get_parent(child, child->d_name.len, child->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno); + status = ocfs2_nfs_sync_lock(OCFS2_SB(dir->i_sb), 1); + if (status < 0) { + mlog(ML_ERROR, "getting nfs sync lock(EX) failed %d\n", status); + parent = ERR_PTR(status); + goto bail; + } + status = ocfs2_inode_lock(dir, NULL, 0); if (status < 0) { if (status != -ENOENT) mlog_errno(status); parent = ERR_PTR(status); - goto bail; + goto unlock_nfs_sync; } status = ocfs2_lookup_ino_from_name(dir, "..", 2, &blkno); @@ -166,11 +174,31 @@ static struct dentry *ocfs2_get_parent(struct dentry *child) goto bail_unlock; } + status = ocfs2_test_inode_bit(OCFS2_SB(dir->i_sb), blkno, &set); + if (status < 0) { + if (status == -EINVAL) { + status = -ESTALE; + } else + mlog(ML_ERROR, "test inode bit failed %d\n", status); + parent = ERR_PTR(status); + goto bail_unlock; + } + + trace_ocfs2_get_dentry_test_bit(status, set); + if (!set) { + status = -ESTALE; + parent = ERR_PTR(status); + goto bail_unlock; + } + parent = d_obtain_alias(ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0)); bail_unlock: ocfs2_inode_unlock(dir, 0); +unlock_nfs_sync: + ocfs2_nfs_sync_unlock(OCFS2_SB(dir->i_sb), 1); + bail: trace_ocfs2_get_parent_end(parent); diff --git a/fs/open.c b/fs/open.c index fbc5c7b230b3..6cf516156111 100644 --- a/fs/open.c +++ b/fs/open.c @@ -1152,3 +1152,21 @@ int nonseekable_open(struct inode *inode, struct file *filp) } EXPORT_SYMBOL(nonseekable_open); + +/* + * stream_open is used by subsystems that want stream-like file descriptors. + * Such file descriptors are not seekable and don't have notion of position + * (file.f_pos is always 0). Contrary to file descriptors of other regular + * files, .read() and .write() can run simultaneously. + * + * stream_open never fails and is marked to return int so that it could be + * directly used as file_operations.open . + */ +int stream_open(struct inode *inode, struct file *filp) +{ + filp->f_mode &= ~(FMODE_LSEEK | FMODE_PREAD | FMODE_PWRITE | FMODE_ATOMIC_POS); + filp->f_mode |= FMODE_STREAM; + return 0; +} + +EXPORT_SYMBOL(stream_open); diff --git a/fs/read_write.c b/fs/read_write.c index 16e554ba885d..7b175b9134ec 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -553,12 +553,13 @@ EXPORT_SYMBOL(vfs_write); static inline loff_t file_pos_read(struct file *file) { - return file->f_pos; + return file->f_mode & FMODE_STREAM ? 0 : file->f_pos; } static inline void file_pos_write(struct file *file, loff_t pos) { - file->f_pos = pos; + if ((file->f_mode & FMODE_STREAM) == 0) + file->f_pos = pos; } SYSCALL_DEFINE3(read, unsigned int, fd, char __user *, buf, size_t, count) diff --git a/fs/ufs/util.h b/fs/ufs/util.h index 3f9463f8cf2f..f877d5cadd98 100644 --- a/fs/ufs/util.h +++ b/fs/ufs/util.h @@ -228,7 +228,7 @@ ufs_get_inode_gid(struct super_block *sb, struct ufs_inode *inode) case UFS_UID_44BSD: return fs32_to_cpu(sb, inode->ui_u3.ui_44.ui_gid); case UFS_UID_EFT: - if (inode->ui_u1.oldids.ui_suid == 0xFFFF) + if (inode->ui_u1.oldids.ui_sgid == 0xFFFF) return fs32_to_cpu(sb, inode->ui_u3.ui_sun.ui_gid); /* Fall through */ default: diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index 59d58bdad7d3..e93541282aa1 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -137,7 +137,7 @@ static void userfaultfd_ctx_put(struct userfaultfd_ctx *ctx) VM_BUG_ON(waitqueue_active(&ctx->fault_wqh)); VM_BUG_ON(spin_is_locked(&ctx->fd_wqh.lock)); VM_BUG_ON(waitqueue_active(&ctx->fd_wqh)); - mmput(ctx->mm); + mmdrop(ctx->mm); kmem_cache_free(userfaultfd_ctx_cachep, ctx); } } @@ -434,6 +434,9 @@ static int userfaultfd_release(struct inode *inode, struct file *file) ACCESS_ONCE(ctx->released) = true; + if (!mmget_not_zero(mm)) + goto wakeup; + /* * Flush page faults out of all CPUs. NOTE: all page faults * must be retried without returning VM_FAULT_SIGBUS if @@ -466,7 +469,8 @@ static int userfaultfd_release(struct inode *inode, struct file *file) vma->vm_userfaultfd_ctx = NULL_VM_UFFD_CTX; } up_write(&mm->mmap_sem); - + mmput(mm); +wakeup: /* * After no new page faults can wait on this fault_*wqh, flush * the last page faults that may have been already waiting on @@ -760,10 +764,12 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx, start = uffdio_register.range.start; end = start + uffdio_register.range.len; + ret = -ENOMEM; + if (!mmget_not_zero(mm)) + goto out; + down_write(&mm->mmap_sem); vma = find_vma_prev(mm, start, &prev); - - ret = -ENOMEM; if (!vma) goto out_unlock; @@ -864,6 +870,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx, } while (vma && vma->vm_start < end); out_unlock: up_write(&mm->mmap_sem); + mmput(mm); if (!ret) { /* * Now that we scanned all vmas we can already tell @@ -902,10 +909,12 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx, start = uffdio_unregister.start; end = start + uffdio_unregister.len; + ret = -ENOMEM; + if (!mmget_not_zero(mm)) + goto out; + down_write(&mm->mmap_sem); vma = find_vma_prev(mm, start, &prev); - - ret = -ENOMEM; if (!vma) goto out_unlock; @@ -998,6 +1007,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx, } while (vma && vma->vm_start < end); out_unlock: up_write(&mm->mmap_sem); + mmput(mm); out: return ret; } @@ -1067,9 +1077,11 @@ static int userfaultfd_copy(struct userfaultfd_ctx *ctx, goto out; if (uffdio_copy.mode & ~UFFDIO_COPY_MODE_DONTWAKE) goto out; - - ret = mcopy_atomic(ctx->mm, uffdio_copy.dst, uffdio_copy.src, - uffdio_copy.len); + if (mmget_not_zero(ctx->mm)) { + ret = mcopy_atomic(ctx->mm, uffdio_copy.dst, uffdio_copy.src, + uffdio_copy.len); + mmput(ctx->mm); + } if (unlikely(put_user(ret, &user_uffdio_copy->copy))) return -EFAULT; if (ret < 0) @@ -1110,8 +1122,11 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx, if (uffdio_zeropage.mode & ~UFFDIO_ZEROPAGE_MODE_DONTWAKE) goto out; - ret = mfill_zeropage(ctx->mm, uffdio_zeropage.range.start, - uffdio_zeropage.range.len); + if (mmget_not_zero(ctx->mm)) { + ret = mfill_zeropage(ctx->mm, uffdio_zeropage.range.start, + uffdio_zeropage.range.len); + mmput(ctx->mm); + } if (unlikely(put_user(ret, &user_uffdio_zeropage->zeropage))) return -EFAULT; if (ret < 0) @@ -1289,12 +1304,12 @@ static struct file *userfaultfd_file_create(int flags) ctx->released = false; ctx->mm = current->mm; /* prevent the mm struct to be freed */ - atomic_inc(&ctx->mm->mm_users); + atomic_inc(&ctx->mm->mm_count); file = anon_inode_getfile("[userfaultfd]", &userfaultfd_fops, ctx, O_RDWR | (flags & UFFD_SHARED_FCNTL_FLAGS)); if (IS_ERR(file)) { - mmput(ctx->mm); + mmdrop(ctx->mm); kmem_cache_free(userfaultfd_ctx_cachep, ctx); } out: diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h index 072501a0ac86..dfa6d4f08b99 100644 --- a/include/linux/backing-dev-defs.h +++ b/include/linux/backing-dev-defs.h @@ -157,6 +157,7 @@ struct backing_dev_info { struct radix_tree_root cgwb_tree; /* radix tree of active cgroup wbs */ struct rb_root cgwb_congested_tree; /* their congested states */ atomic_t usage_cnt; /* counts both cgwbs and cgwb_contested's */ + struct rw_semaphore wb_switch_rwsem; /* no cgwb switch while syncing */ #else struct bdi_writeback_congested *wb_congested; #endif diff --git a/include/linux/bio.h b/include/linux/bio.h index 42e4e3cbb001..0ffb9a397620 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -290,7 +290,7 @@ static inline void bio_cnt_set(struct bio *bio, unsigned int count) { if (count != 1) { bio->bi_flags |= (1 << BIO_REFFED); - smp_mb__before_atomic(); + smp_mb(); } atomic_set(&bio->__bi_cnt, count); } diff --git a/include/linux/bitops.h b/include/linux/bitops.h index e76d03f44c80..83edade218fa 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -68,7 +68,7 @@ static __always_inline unsigned long hweight_long(unsigned long w) */ static inline __u64 rol64(__u64 word, unsigned int shift) { - return (word << shift) | (word >> (64 - shift)); + return (word << (shift & 63)) | (word >> ((-shift) & 63)); } /** @@ -78,7 +78,7 @@ static inline __u64 rol64(__u64 word, unsigned int shift) */ static inline __u64 ror64(__u64 word, unsigned int shift) { - return (word >> shift) | (word << (64 - shift)); + return (word >> (shift & 63)) | (word << ((-shift) & 63)); } /** @@ -88,7 +88,7 @@ static inline __u64 ror64(__u64 word, unsigned int shift) */ static inline __u32 rol32(__u32 word, unsigned int shift) { - return (word << shift) | (word >> ((-shift) & 31)); + return (word << (shift & 31)) | (word >> ((-shift) & 31)); } /** @@ -98,7 +98,7 @@ static inline __u32 rol32(__u32 word, unsigned int shift) */ static inline __u32 ror32(__u32 word, unsigned int shift) { - return (word >> shift) | (word << (32 - shift)); + return (word >> (shift & 31)) | (word << ((-shift) & 31)); } /** @@ -108,7 +108,7 @@ static inline __u32 ror32(__u32 word, unsigned int shift) */ static inline __u16 rol16(__u16 word, unsigned int shift) { - return (word << shift) | (word >> (16 - shift)); + return (word << (shift & 15)) | (word >> ((-shift) & 15)); } /** @@ -118,7 +118,7 @@ static inline __u16 rol16(__u16 word, unsigned int shift) */ static inline __u16 ror16(__u16 word, unsigned int shift) { - return (word >> shift) | (word << (16 - shift)); + return (word >> (shift & 15)) | (word << ((-shift) & 15)); } /** @@ -128,7 +128,7 @@ static inline __u16 ror16(__u16 word, unsigned int shift) */ static inline __u8 rol8(__u8 word, unsigned int shift) { - return (word << shift) | (word >> (8 - shift)); + return (word << (shift & 7)) | (word >> ((-shift) & 7)); } /** @@ -138,7 +138,7 @@ static inline __u8 rol8(__u8 word, unsigned int shift) */ static inline __u8 ror8(__u8 word, unsigned int shift) { - return (word >> shift) | (word << (8 - shift)); + return (word >> (shift & 7)) | (word << ((-shift) & 7)); } /** diff --git a/include/linux/fs.h b/include/linux/fs.h index 13277d2715df..26c4bf47cc99 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -140,6 +140,9 @@ typedef void (dax_iodone_t)(struct buffer_head *bh_map, int uptodate); /* Has write method(s) */ #define FMODE_CAN_WRITE ((__force fmode_t)0x40000) +/* File is stream-like */ +#define FMODE_STREAM ((__force fmode_t)0x200000) + /* File was opened by fanotify and shouldn't generate fanotify events */ #define FMODE_NONOTIFY ((__force fmode_t)0x4000000) @@ -2706,6 +2709,7 @@ extern loff_t fixed_size_llseek(struct file *file, loff_t offset, int whence, loff_t size); extern int generic_file_open(struct inode * inode, struct file * filp); extern int nonseekable_open(struct inode * inode, struct file * filp); +extern int stream_open(struct inode * inode, struct file * filp); #ifdef CONFIG_BLOCK typedef void (dio_submit_t)(int rw, struct bio *bio, struct inode *inode, diff --git a/include/linux/hid.h b/include/linux/hid.h index fd86687f8119..5f3131885136 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -372,6 +372,7 @@ struct hid_global { struct hid_local { unsigned usage[HID_MAX_USAGES]; /* usage array */ + u8 usage_size[HID_MAX_USAGES]; /* usage size array */ unsigned collection_index[HID_MAX_USAGES]; /* collection index array */ unsigned usage_index; unsigned usage_minimum; diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 3957d99e66ea..cc185525a94b 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -91,9 +91,7 @@ void putback_active_hugepage(struct page *page); void free_huge_page(struct page *page); void hugetlb_fix_reserve_counts(struct inode *inode, bool restore_reserve); extern struct mutex *hugetlb_fault_mutex_table; -u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm, - struct vm_area_struct *vma, - struct address_space *mapping, +u32 hugetlb_fault_mutex_hash(struct hstate *h, struct address_space *mapping, pgoff_t idx, unsigned long address); #ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h index 6cc48ac55fd2..40b14736c73d 100644 --- a/include/linux/iio/adc/ad_sigma_delta.h +++ b/include/linux/iio/adc/ad_sigma_delta.h @@ -66,6 +66,7 @@ struct ad_sigma_delta { bool irq_dis; bool bus_locked; + bool keep_cs_asserted; uint8_t comm; diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h index 743b34f56f2b..f9a8889e134a 100644 --- a/include/linux/list_lru.h +++ b/include/linux/list_lru.h @@ -51,6 +51,7 @@ struct list_lru { struct list_lru_node *node; #ifdef CONFIG_MEMCG_KMEM struct list_head list; + bool memcg_aware; #endif }; diff --git a/include/linux/mfd/da9063/registers.h b/include/linux/mfd/da9063/registers.h index 2e0ba6d5fbc3..f97173bef581 100644 --- a/include/linux/mfd/da9063/registers.h +++ b/include/linux/mfd/da9063/registers.h @@ -215,9 +215,9 @@ /* DA9063 Configuration registers */ /* OTP */ -#define DA9063_REG_OPT_COUNT 0x101 -#define DA9063_REG_OPT_ADDR 0x102 -#define DA9063_REG_OPT_DATA 0x103 +#define DA9063_REG_OTP_CONT 0x101 +#define DA9063_REG_OTP_ADDR 0x102 +#define DA9063_REG_OTP_DATA 0x103 /* Customer Trim and Configuration */ #define DA9063_REG_T_OFFSET 0x104 diff --git a/include/linux/of.h b/include/linux/of.h index d9371c9cd88a..2772f027f88f 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -199,8 +199,8 @@ extern struct device_node *of_find_all_nodes(struct device_node *prev); static inline u64 of_read_number(const __be32 *cell, int size) { u64 r = 0; - while (size--) - r = (r << 32) | be32_to_cpu(*(cell++)); + for (; size--; cell++) + r = (r << 32) | be32_to_cpu(*cell); return r; } diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index a0189ba67fde..addd03641e1a 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -297,14 +297,12 @@ void synchronize_rcu(void); static inline void __rcu_read_lock(void) { - if (IS_ENABLED(CONFIG_PREEMPT_COUNT)) - preempt_disable(); + preempt_disable(); } static inline void __rcu_read_unlock(void) { - if (IS_ENABLED(CONFIG_PREEMPT_COUNT)) - preempt_enable(); + preempt_enable(); } static inline void synchronize_rcu(void) diff --git a/include/linux/sched.h b/include/linux/sched.h index a0b540f800d9..315df144c156 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2614,12 +2614,17 @@ extern struct mm_struct * mm_alloc(void); /* mmdrop drops the mm and the page tables */ extern void __mmdrop(struct mm_struct *); -static inline void mmdrop(struct mm_struct * mm) +static inline void mmdrop(struct mm_struct *mm) { if (unlikely(atomic_dec_and_test(&mm->mm_count))) __mmdrop(mm); } +static inline bool mmget_not_zero(struct mm_struct *mm) +{ + return atomic_inc_not_zero(&mm->mm_users); +} + /* mmput gets rid of the mappings and all user-space */ extern void mmput(struct mm_struct *); /* Grab a reference to a task's mm, if it is not already going away */ diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 502787c29ce9..a2f12d377d23 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3664,5 +3664,35 @@ static inline unsigned int skb_gso_network_seglen(const struct sk_buff *skb) return hdr_len + skb_gso_transport_seglen(skb); } +/** + * skb_gso_mac_seglen - Return length of individual segments of a gso packet + * + * @skb: GSO skb + * + * skb_gso_mac_seglen is used to determine the real size of the + * individual segments, including MAC/L2, Layer3 (IP, IPv6) and L4 + * headers (TCP/UDP). + */ +static inline unsigned int skb_gso_mac_seglen(const struct sk_buff *skb) +{ + unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb); + return hdr_len + skb_gso_transport_seglen(skb); +} + +/** + * skb_gso_validate_mac_len - Will a split GSO skb fit in a given length? + * + * @skb: GSO skb + * @len: length to validate against + * + * skb_gso_validate_mac_len validates if a given skb will fit a wanted + * length once split, including L2, L3 and L4 headers and the payload. + */ +static inline bool +skb_gso_validate_mac_len(const struct sk_buff *skb, unsigned int len) +{ + return skb_gso_mac_seglen(skb) <= len; +} + #endif /* __KERNEL__ */ #endif /* _LINUX_SKBUFF_H */ diff --git a/include/linux/smpboot.h b/include/linux/smpboot.h index 12910cf19869..12a4b09f4d08 100644 --- a/include/linux/smpboot.h +++ b/include/linux/smpboot.h @@ -30,7 +30,7 @@ struct smpboot_thread_data; * @thread_comm: The base name of the thread */ struct smp_hotplug_thread { - struct task_struct __percpu **store; + struct task_struct * __percpu *store; struct list_head list; int (*thread_should_run)(unsigned int cpu); void (*thread_fn)(unsigned int cpu); diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 7e84aac39ade..667e7f9fd877 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -671,7 +671,9 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev) */ static inline size_t usb_ep_align(struct usb_ep *ep, size_t len) { - return round_up(len, (size_t)le16_to_cpu(ep->desc->wMaxPacketSize)); + int max_packet_size = (size_t)usb_endpoint_maxp(ep->desc) & 0x7ff; + + return round_up(len, max_packet_size); } /** diff --git a/include/net/arp.h b/include/net/arp.h index 1b3f86981757..92d2f7d7d1cb 100644 --- a/include/net/arp.h +++ b/include/net/arp.h @@ -17,6 +17,7 @@ static inline u32 arp_hashfn(const void *pkey, const struct net_device *dev, u32 return val * hash_rnd[0]; } +#ifdef CONFIG_INET static inline struct neighbour *__ipv4_neigh_lookup_noref(struct net_device *dev, u32 key) { if (dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT)) @@ -24,6 +25,13 @@ static inline struct neighbour *__ipv4_neigh_lookup_noref(struct net_device *dev return ___neigh_lookup_noref(&arp_tbl, neigh_key_eq32, arp_hashfn, &key, dev); } +#else +static inline +struct neighbour *__ipv4_neigh_lookup_noref(struct net_device *dev, u32 key) +{ + return NULL; +} +#endif static inline struct neighbour *__ipv4_neigh_lookup(struct net_device *dev, u32 key) { diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h index c9aca042e61d..d3a5cf3b5446 100644 --- a/include/uapi/linux/fuse.h +++ b/include/uapi/linux/fuse.h @@ -205,10 +205,12 @@ struct fuse_file_lock { * FOPEN_DIRECT_IO: bypass page cache for this open file * FOPEN_KEEP_CACHE: don't invalidate the data cache on open * FOPEN_NONSEEKABLE: the file is not seekable + * FOPEN_STREAM: the file is stream-like (no file position at all) */ #define FOPEN_DIRECT_IO (1 << 0) #define FOPEN_KEEP_CACHE (1 << 1) #define FOPEN_NONSEEKABLE (1 << 2) +#define FOPEN_STREAM (1 << 4) /** * INIT request/reply flags diff --git a/include/uapi/linux/tipc_config.h b/include/uapi/linux/tipc_config.h index 087b0ef82c07..bbebd258cf07 100644 --- a/include/uapi/linux/tipc_config.h +++ b/include/uapi/linux/tipc_config.h @@ -301,8 +301,10 @@ static inline int TLV_SET(void *tlv, __u16 type, void *data, __u16 len) tlv_ptr = (struct tlv_desc *)tlv; tlv_ptr->tlv_type = htons(type); tlv_ptr->tlv_len = htons(tlv_len); - if (len && data) - memcpy(TLV_DATA(tlv_ptr), data, tlv_len); + if (len && data) { + memcpy(TLV_DATA(tlv_ptr), data, len); + memset(TLV_DATA(tlv_ptr) + len, 0, TLV_SPACE(len) - tlv_len); + } return TLV_SPACE(len); } @@ -399,8 +401,10 @@ static inline int TCM_SET(void *msg, __u16 cmd, __u16 flags, tcm_hdr->tcm_len = htonl(msg_len); tcm_hdr->tcm_type = htons(cmd); tcm_hdr->tcm_flags = htons(flags); - if (data_len && data) + if (data_len && data) { memcpy(TCM_DATA(msg), data, data_len); + memset(TCM_DATA(msg) + data_len, 0, TCM_SPACE(data_len) - msg_len); + } return TCM_SPACE(data_len); } diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index b57f929f1b46..cf7aa656b308 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c @@ -1095,22 +1095,24 @@ int audit_rule_change(int type, __u32 portid, int seq, void *data, int err = 0; struct audit_entry *entry; - entry = audit_data_to_entry(data, datasz); - if (IS_ERR(entry)) - return PTR_ERR(entry); - switch (type) { case AUDIT_ADD_RULE: + entry = audit_data_to_entry(data, datasz); + if (IS_ERR(entry)) + return PTR_ERR(entry); err = audit_add_rule(entry); audit_log_rule_change("add_rule", &entry->rule, !err); break; case AUDIT_DEL_RULE: + entry = audit_data_to_entry(data, datasz); + if (IS_ERR(entry)) + return PTR_ERR(entry); err = audit_del_rule(entry); audit_log_rule_change("remove_rule", &entry->rule, !err); break; default: - err = -EINVAL; WARN_ON(1); + return -EINVAL; } if (err || type == AUDIT_DEL_RULE) { diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index d89328e260df..041a02b334d7 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1603,6 +1603,10 @@ rcu_torture_cleanup(void) cur_ops->cb_barrier(); return; } + if (!cur_ops) { + torture_cleanup_end(); + return; + } rcu_torture_barrier_cleanup(); torture_stop_kthread(rcu_torture_stall, stall_task); @@ -1741,6 +1745,7 @@ rcu_torture_init(void) pr_alert(" %s", torture_ops[i]->name); pr_alert("\n"); firsterr = -EINVAL; + cur_ops = NULL; goto unwind; } if (cur_ops->fqs == NULL && fqs_duration != 0) { diff --git a/kernel/sched/core.c b/kernel/sched/core.c index d35a7d528ea6..0e70bfeded7f 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8361,6 +8361,8 @@ static void cpu_cgroup_attach(struct cgroup_taskset *tset) static int cpu_shares_write_u64(struct cgroup_subsys_state *css, struct cftype *cftype, u64 shareval) { + if (shareval > scale_load_down(ULONG_MAX)) + shareval = MAX_SHARES; return sched_group_set_shares(css_tg(css), scale_load(shareval)); } @@ -8460,8 +8462,10 @@ int tg_set_cfs_quota(struct task_group *tg, long cfs_quota_us) period = ktime_to_ns(tg->cfs_bandwidth.period); if (cfs_quota_us < 0) quota = RUNTIME_INF; - else + else if ((u64)cfs_quota_us <= U64_MAX / NSEC_PER_USEC) quota = (u64)cfs_quota_us * NSEC_PER_USEC; + else + return -EINVAL; return tg_set_cfs_bandwidth(tg, period, quota); } @@ -8483,6 +8487,9 @@ int tg_set_cfs_period(struct task_group *tg, long cfs_period_us) { u64 quota, period; + if ((u64)cfs_period_us > U64_MAX / NSEC_PER_USEC) + return -EINVAL; + period = (u64)cfs_period_us * NSEC_PER_USEC; quota = tg->cfs_bandwidth.quota; diff --git a/kernel/signal.c b/kernel/signal.c index 96e8c3cbfa38..072fd152ab01 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2244,6 +2244,8 @@ relock: if (signal_group_exit(signal)) { ksig->info.si_signo = signr = SIGKILL; sigdelset(¤t->pending.signal, SIGKILL); + trace_signal_deliver(SIGKILL, SEND_SIG_NOINFO, + &sighand->action[SIGKILL - 1]); recalc_sigpending(); goto fatal; } diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index ba5392807912..bd4c0bb61ad7 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -1288,9 +1288,6 @@ event_id_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) char buf[32]; int len; - if (*ppos) - return 0; - if (unlikely(!id)) return -ENODEV; diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c index e0af6ff73d14..f8b1e3cb716b 100644 --- a/lib/strncpy_from_user.c +++ b/lib/strncpy_from_user.c @@ -20,10 +20,11 @@ * hit it), 'max' is the address space maximum (and we return * -EFAULT if we hit it). */ -static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max) +static inline long do_strncpy_from_user(char *dst, const char __user *src, + unsigned long count, unsigned long max) { const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS; - long res = 0; + unsigned long res = 0; /* * Truncate 'max' to the user-specified limit, so that diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c index 3a5f2b366d84..1c87bfa63db7 100644 --- a/lib/strnlen_user.c +++ b/lib/strnlen_user.c @@ -27,7 +27,7 @@ static inline long do_strnlen_user(const char __user *src, unsigned long count, unsigned long max) { const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS; - long align, res = 0; + unsigned long align, res = 0; unsigned long c; /* @@ -41,7 +41,7 @@ static inline long do_strnlen_user(const char __user *src, unsigned long count, * Do everything aligned. But that means that we * need to also expand the maximum.. */ - align = (sizeof(long) - 1) & (unsigned long)src; + align = (sizeof(unsigned long) - 1) & (unsigned long)src; src -= align; max += align; diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 7f80b1a1bc34..07e3b3b8e846 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -669,6 +669,7 @@ static int cgwb_bdi_init(struct backing_dev_info *bdi) INIT_RADIX_TREE(&bdi->cgwb_tree, GFP_ATOMIC); bdi->cgwb_congested_tree = RB_ROOT; atomic_set(&bdi->usage_cnt, 1); + init_rwsem(&bdi->wb_switch_rwsem); ret = wb_init(&bdi->wb, bdi, 1, GFP_KERNEL); if (!ret) { diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 324b2953e57e..d7f65a8c629b 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3703,21 +3703,14 @@ backout_unlocked: } #ifdef CONFIG_SMP -u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm, - struct vm_area_struct *vma, - struct address_space *mapping, +u32 hugetlb_fault_mutex_hash(struct hstate *h, struct address_space *mapping, pgoff_t idx, unsigned long address) { unsigned long key[2]; u32 hash; - if (vma->vm_flags & VM_SHARED) { - key[0] = (unsigned long) mapping; - key[1] = idx; - } else { - key[0] = (unsigned long) mm; - key[1] = address >> huge_page_shift(h); - } + key[0] = (unsigned long) mapping; + key[1] = idx; hash = jhash2((u32 *)&key, sizeof(key)/sizeof(u32), 0); @@ -3728,9 +3721,7 @@ u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm, * For uniprocesor systems we always use a single mutex, so just * return 0 and avoid the hashing overhead. */ -u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm, - struct vm_area_struct *vma, - struct address_space *mapping, +u32 hugetlb_fault_mutex_hash(struct hstate *h, struct address_space *mapping, pgoff_t idx, unsigned long address) { return 0; @@ -3776,7 +3767,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, * get spurious allocation failures if two CPUs race to instantiate * the same page in the page cache. */ - hash = hugetlb_fault_mutex_hash(h, mm, vma, mapping, idx, address); + hash = hugetlb_fault_mutex_hash(h, mapping, idx, address); mutex_lock(&hugetlb_fault_mutex_table[hash]); entry = huge_ptep_get(ptep); diff --git a/mm/list_lru.c b/mm/list_lru.c index 786176b1a0ee..732a066e3d3a 100644 --- a/mm/list_lru.c +++ b/mm/list_lru.c @@ -42,11 +42,7 @@ static void list_lru_unregister(struct list_lru *lru) #ifdef CONFIG_MEMCG_KMEM static inline bool list_lru_memcg_aware(struct list_lru *lru) { - /* - * This needs node 0 to be always present, even - * in the systems supporting sparse numa ids. - */ - return !!lru->node[0].memcg_lrus; + return lru->memcg_aware; } static inline struct list_lru_one * @@ -389,6 +385,8 @@ static int memcg_init_list_lru(struct list_lru *lru, bool memcg_aware) { int i; + lru->memcg_aware = memcg_aware; + if (!memcg_aware) return 0; diff --git a/mm/mincore.c b/mm/mincore.c index 14bb9fb37f0c..9700c2303941 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -165,6 +165,22 @@ out: return 0; } +static inline bool can_do_mincore(struct vm_area_struct *vma) +{ + if (vma_is_anonymous(vma)) + return true; + if (!vma->vm_file) + return false; + /* + * Reveal pagecache information only for non-anonymous mappings that + * correspond to the files the calling process could (if tried) open + * for writing; otherwise we'd be including shared non-exclusive + * mappings, which opens a side channel. + */ + return inode_owner_or_capable(file_inode(vma->vm_file)) || + inode_permission(file_inode(vma->vm_file), MAY_WRITE) == 0; +} + /* * Do a chunk of "sys_mincore()". We've already checked * all the arguments, we hold the mmap semaphore: we should @@ -185,8 +201,13 @@ static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *v vma = find_vma(current->mm, addr); if (!vma || addr < vma->vm_start) return -ENOMEM; - mincore_walk.mm = vma->vm_mm; end = min(vma->vm_end, addr + (pages << PAGE_SHIFT)); + if (!can_do_mincore(vma)) { + unsigned long pages = DIV_ROUND_UP(end - addr, PAGE_SIZE); + memset(vec, 1, pages); + return pages; + } + mincore_walk.mm = vma->vm_mm; err = walk_page_range(addr, end, &mincore_walk); if (err < 0) return err; diff --git a/net/core/dev.c b/net/core/dev.c index 49f78bce5795..db5345f5f7b0 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4550,7 +4550,6 @@ static struct sk_buff *napi_frags_skb(struct napi_struct *napi) skb_reset_mac_header(skb); skb_gro_reset_offset(skb); - eth = skb_gro_header_fast(skb, 0); if (unlikely(skb_gro_header_hard(skb, hlen))) { eth = skb_gro_header_slow(skb, hlen, 0); if (unlikely(!eth)) { @@ -4558,6 +4557,7 @@ static struct sk_buff *napi_frags_skb(struct napi_struct *napi) return NULL; } } else { + eth = (const struct ethhdr *)skb->data; gro_pull_from_frag0(skb, hlen); NAPI_GRO_CB(skb)->frag0 += hlen; NAPI_GRO_CB(skb)->frag0_len -= hlen; @@ -6986,7 +6986,7 @@ static void netdev_wait_allrefs(struct net_device *dev) refcnt = netdev_refcnt_read(dev); - if (time_after(jiffies, warning_time + 10 * HZ)) { + if (refcnt && time_after(jiffies, warning_time + 10 * HZ)) { pr_emerg("unregister_netdevice: waiting for %s to become free. Usage count = %d\n", dev->name, refcnt); warning_time = jiffies; diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 9a53c66deb64..66428c0eb663 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -428,8 +428,13 @@ static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev, if (rc >= 0) info.n_priv_flags = rc; } - if (ops->get_regs_len) - info.regdump_len = ops->get_regs_len(dev); + if (ops->get_regs_len) { + int ret = ops->get_regs_len(dev); + + if (ret > 0) + info.regdump_len = ret; + } + if (ops->get_eeprom_len) info.eedump_len = ops->get_eeprom_len(dev); @@ -883,6 +888,9 @@ static int ethtool_get_regs(struct net_device *dev, char __user *useraddr) return -EFAULT; reglen = ops->get_regs_len(dev); + if (reglen <= 0) + return reglen; + if (regs.len > reglen) regs.len = reglen; @@ -893,13 +901,16 @@ static int ethtool_get_regs(struct net_device *dev, char __user *useraddr) return -ENOMEM; } + if (regs.len < reglen) + reglen = regs.len; + ops->get_regs(dev, ®s, regbuf); ret = -EFAULT; if (copy_to_user(useraddr, ®s, sizeof(regs))) goto out; useraddr += offsetof(struct ethtool_regs, data); - if (regbuf && copy_to_user(useraddr, regbuf, regs.len)) + if (copy_to_user(useraddr, regbuf, reglen)) goto out; ret = 0; diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 78dc184072e8..9d812ba38ff2 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -2490,7 +2491,13 @@ int neigh_xmit(int index, struct net_device *dev, if (!tbl) goto out; rcu_read_lock_bh(); - neigh = __neigh_lookup_noref(tbl, addr, dev); + if (index == NEIGH_ARP_TABLE) { + u32 key = *((u32 *)addr); + + neigh = __ipv4_neigh_lookup_noref(dev, key); + } else { + neigh = __neigh_lookup_noref(tbl, addr, dev); + } if (!neigh) neigh = __neigh_create(tbl, addr, dev, false); err = PTR_ERR(neigh); diff --git a/net/core/pktgen.c b/net/core/pktgen.c index b6327601f979..4ea957c1e7ee 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -3139,7 +3139,13 @@ static int pktgen_wait_thread_run(struct pktgen_thread *t) { while (thread_is_running(t)) { + /* note: 't' will still be around even after the unlock/lock + * cycle because pktgen_thread threads are only cleared at + * net exit + */ + mutex_unlock(&pktgen_thread_lock); msleep_interruptible(100); + mutex_lock(&pktgen_thread_lock); if (signal_pending(current)) goto signal; @@ -3154,6 +3160,10 @@ static int pktgen_wait_all_threads_run(struct pktgen_net *pn) struct pktgen_thread *t; int sig = 1; + /* prevent from racing with rmmod */ + if (!try_module_get(THIS_MODULE)) + return sig; + mutex_lock(&pktgen_thread_lock); list_for_each_entry(t, &pn->pktgen_threads, th_list) { @@ -3167,6 +3177,7 @@ static int pktgen_wait_all_threads_run(struct pktgen_net *pn) t->control |= (T_STOP); mutex_unlock(&pktgen_thread_lock); + module_put(THIS_MODULE); return sig; } diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c index fcf327ebd134..bbcbbc1cc2cc 100644 --- a/net/ipv4/ip_vti.c +++ b/net/ipv4/ip_vti.c @@ -648,9 +648,9 @@ static int __init vti_init(void) return err; rtnl_link_failed: - xfrm4_protocol_deregister(&vti_ipcomp4_protocol, IPPROTO_COMP); -xfrm_tunnel_failed: xfrm4_tunnel_deregister(&ipip_handler, AF_INET); +xfrm_tunnel_failed: + xfrm4_protocol_deregister(&vti_ipcomp4_protocol, IPPROTO_COMP); xfrm_proto_comp_failed: xfrm4_protocol_deregister(&vti_ah4_protocol, IPPROTO_AH); xfrm_proto_ah_failed: @@ -666,6 +666,7 @@ pernet_dev_failed: static void __exit vti_fini(void) { rtnl_link_unregister(&vti_link_ops); + xfrm4_tunnel_deregister(&ipip_handler, AF_INET); xfrm4_protocol_deregister(&vti_ipcomp4_protocol, IPPROTO_COMP); xfrm4_protocol_deregister(&vti_ah4_protocol, IPPROTO_AH); xfrm4_protocol_deregister(&vti_esp4_protocol, IPPROTO_ESP); diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c index fddae0164b91..d9758ecdcba6 100644 --- a/net/ipv4/xfrm4_policy.c +++ b/net/ipv4/xfrm4_policy.c @@ -108,7 +108,8 @@ static void _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) { const struct iphdr *iph = ip_hdr(skb); - u8 *xprth = skb_network_header(skb) + iph->ihl * 4; + int ihl = iph->ihl; + u8 *xprth = skb_network_header(skb) + ihl * 4; struct flowi4 *fl4 = &fl->u.ip4; int oif = 0; @@ -119,6 +120,11 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) fl4->flowi4_mark = skb->mark; fl4->flowi4_oif = reverse ? skb->skb_iif : oif; + fl4->flowi4_proto = iph->protocol; + fl4->daddr = reverse ? iph->saddr : iph->daddr; + fl4->saddr = reverse ? iph->daddr : iph->saddr; + fl4->flowi4_tos = iph->tos; + if (!ip_is_fragment(iph)) { switch (iph->protocol) { case IPPROTO_UDP: @@ -130,7 +136,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) pskb_may_pull(skb, xprth + 4 - skb->data)) { __be16 *ports; - xprth = skb_network_header(skb) + iph->ihl * 4; + xprth = skb_network_header(skb) + ihl * 4; ports = (__be16 *)xprth; fl4->fl4_sport = ports[!!reverse]; @@ -143,7 +149,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) pskb_may_pull(skb, xprth + 2 - skb->data)) { u8 *icmp; - xprth = skb_network_header(skb) + iph->ihl * 4; + xprth = skb_network_header(skb) + ihl * 4; icmp = xprth; fl4->fl4_icmp_type = icmp[0]; @@ -156,7 +162,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) pskb_may_pull(skb, xprth + 4 - skb->data)) { __be32 *ehdr; - xprth = skb_network_header(skb) + iph->ihl * 4; + xprth = skb_network_header(skb) + ihl * 4; ehdr = (__be32 *)xprth; fl4->fl4_ipsec_spi = ehdr[0]; @@ -168,7 +174,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) pskb_may_pull(skb, xprth + 8 - skb->data)) { __be32 *ah_hdr; - xprth = skb_network_header(skb) + iph->ihl * 4; + xprth = skb_network_header(skb) + ihl * 4; ah_hdr = (__be32 *)xprth; fl4->fl4_ipsec_spi = ah_hdr[1]; @@ -180,7 +186,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) pskb_may_pull(skb, xprth + 4 - skb->data)) { __be16 *ipcomp_hdr; - xprth = skb_network_header(skb) + iph->ihl * 4; + xprth = skb_network_header(skb) + ihl * 4; ipcomp_hdr = (__be16 *)xprth; fl4->fl4_ipsec_spi = htonl(ntohs(ipcomp_hdr[1])); @@ -193,7 +199,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) __be16 *greflags; __be32 *gre_hdr; - xprth = skb_network_header(skb) + iph->ihl * 4; + xprth = skb_network_header(skb) + ihl * 4; greflags = (__be16 *)xprth; gre_hdr = (__be32 *)xprth; @@ -210,10 +216,6 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse) break; } } - fl4->flowi4_proto = iph->protocol; - fl4->daddr = reverse ? iph->saddr : iph->daddr; - fl4->saddr = reverse ? iph->daddr : iph->saddr; - fl4->flowi4_tos = iph->tos; } static inline int xfrm4_garbage_collect(struct dst_ops *ops) diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 4d52a0e2f60d..55953c5804c3 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -283,7 +283,9 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) /* Binding to link-local address requires an interface */ if (!sk->sk_bound_dev_if) goto out_unlock; + } + if (sk->sk_bound_dev_if) { err = -ENODEV; dev = dev_get_by_index_rcu(sock_net(sk), sk->sk_bound_dev_if); diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index 56b72cada346..f9d493c59d6c 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -391,6 +391,10 @@ static void __exit xfrm6_tunnel_fini(void) xfrm6_tunnel_deregister(&xfrm6_tunnel_handler, AF_INET6); xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6); unregister_pernet_subsys(&xfrm6_tunnel_net_ops); + /* Someone maybe has gotten the xfrm6_tunnel_spi. + * So need to wait it. + */ + rcu_barrier(); kmem_cache_destroy(xfrm6_tunnel_spi_kmem); } diff --git a/net/llc/llc_output.c b/net/llc/llc_output.c index 94425e421213..9e4b6bcf6920 100644 --- a/net/llc/llc_output.c +++ b/net/llc/llc_output.c @@ -72,6 +72,8 @@ int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb, rc = llc_mac_hdr_init(skb, skb->dev->dev_addr, dmac); if (likely(!rc)) rc = dev_queue_xmit(skb); + else + kfree_skb(skb); return rc; } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index ed4fef32b394..08384dbf426c 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1104,9 +1104,6 @@ static void ieee80211_chswitch_work(struct work_struct *work) goto out; } - /* XXX: shouldn't really modify cfg80211-owned data! */ - ifmgd->associated->channel = sdata->csa_chandef.chan; - ifmgd->csa_waiting_bcn = true; ieee80211_sta_reset_beacon_monitor(sdata); diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c index a2340748ec86..d7888924166e 100644 --- a/net/rds/ib_rdma.c +++ b/net/rds/ib_rdma.c @@ -725,12 +725,14 @@ static int rds_ib_flush_mr_pool(struct rds_ib_mr_pool *pool, wait_clean_list_grace(); list_to_llist_nodes(pool, &unmap_list, &clean_nodes, &clean_tail); - if (ibmr_ret) + if (ibmr_ret) { *ibmr_ret = llist_entry(clean_nodes, struct rds_ib_mr, llnode); - + clean_nodes = clean_nodes->next; + } /* more than one entry in llist nodes */ - if (clean_nodes->next) - llist_add_batch(clean_nodes->next, clean_tail, &pool->clean_list); + if (clean_nodes) + llist_add_batch(clean_nodes, clean_tail, + &pool->clean_list); } diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c index a06c9d6bfc9c..05c7a66f64da 100644 --- a/net/sched/sch_tbf.c +++ b/net/sched/sch_tbf.c @@ -142,16 +142,6 @@ static u64 psched_ns_t2l(const struct psched_ratecfg *r, return len; } -/* - * Return length of individual segments of a gso packet, - * including all headers (MAC, IP, TCP/UDP) - */ -static unsigned int skb_gso_mac_seglen(const struct sk_buff *skb) -{ - unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb); - return hdr_len + skb_gso_transport_seglen(skb); -} - /* GSO packet is too big, segment it so that tbf can transmit * each segment in time */ diff --git a/net/tipc/core.c b/net/tipc/core.c index e2bdb07a49a2..c306e9bc1621 100644 --- a/net/tipc/core.c +++ b/net/tipc/core.c @@ -70,9 +70,6 @@ static int __net_init tipc_init_net(struct net *net) goto out_nametbl; INIT_LIST_HEAD(&tn->dist_queue); - err = tipc_topsrv_start(net); - if (err) - goto out_subscr; err = tipc_bcast_init(net); if (err) @@ -81,8 +78,6 @@ static int __net_init tipc_init_net(struct net *net) return 0; out_bclink: - tipc_bcast_stop(net); -out_subscr: tipc_nametbl_stop(net); out_nametbl: tipc_sk_rht_destroy(net); @@ -92,7 +87,6 @@ out_sk_rht: static void __net_exit tipc_exit_net(struct net *net) { - tipc_topsrv_stop(net); tipc_net_stop(net); tipc_bcast_stop(net); tipc_nametbl_stop(net); @@ -106,6 +100,11 @@ static struct pernet_operations tipc_net_ops = { .size = sizeof(struct tipc_net), }; +static struct pernet_operations tipc_topsrv_net_ops = { + .init = tipc_topsrv_init_net, + .exit = tipc_topsrv_exit_net, +}; + static int __init tipc_init(void) { int err; @@ -126,10 +125,6 @@ static int __init tipc_init(void) if (err) goto out_netlink_compat; - err = tipc_socket_init(); - if (err) - goto out_socket; - err = tipc_register_sysctl(); if (err) goto out_sysctl; @@ -138,6 +133,14 @@ static int __init tipc_init(void) if (err) goto out_pernet; + err = tipc_socket_init(); + if (err) + goto out_socket; + + err = register_pernet_subsys(&tipc_topsrv_net_ops); + if (err) + goto out_pernet_topsrv; + err = tipc_bearer_setup(); if (err) goto out_bearer; @@ -145,12 +148,14 @@ static int __init tipc_init(void) pr_info("Started in single node mode\n"); return 0; out_bearer: + unregister_pernet_subsys(&tipc_topsrv_net_ops); +out_pernet_topsrv: + tipc_socket_stop(); +out_socket: unregister_pernet_subsys(&tipc_net_ops); out_pernet: tipc_unregister_sysctl(); out_sysctl: - tipc_socket_stop(); -out_socket: tipc_netlink_compat_stop(); out_netlink_compat: tipc_netlink_stop(); @@ -162,10 +167,11 @@ out_netlink: static void __exit tipc_exit(void) { tipc_bearer_cleanup(); + unregister_pernet_subsys(&tipc_topsrv_net_ops); + tipc_socket_stop(); unregister_pernet_subsys(&tipc_net_ops); tipc_netlink_stop(); tipc_netlink_compat_stop(); - tipc_socket_stop(); tipc_unregister_sysctl(); pr_info("Deactivated\n"); diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index 500c9e614a06..4f80f00cd8f9 100644 --- a/net/tipc/subscr.c +++ b/net/tipc/subscr.c @@ -306,7 +306,7 @@ static void *tipc_subscrb_connect_cb(int conid) return (void *)tipc_subscrb_create(conid); } -int tipc_topsrv_start(struct net *net) +static int tipc_topsrv_start(struct net *net) { struct tipc_net *tn = net_generic(net, tipc_net_id); const char name[] = "topology_server"; @@ -344,7 +344,7 @@ int tipc_topsrv_start(struct net *net) return tipc_server_start(topsrv); } -void tipc_topsrv_stop(struct net *net) +static void tipc_topsrv_stop(struct net *net) { struct tipc_net *tn = net_generic(net, tipc_net_id); struct tipc_server *topsrv = tn->topsrv; @@ -353,3 +353,13 @@ void tipc_topsrv_stop(struct net *net) kfree(topsrv->saddr); kfree(topsrv); } + +int __net_init tipc_topsrv_init_net(struct net *net) +{ + return tipc_topsrv_start(net); +} + +void __net_exit tipc_topsrv_exit_net(struct net *net) +{ + tipc_topsrv_stop(net); +} diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h index 92ee18cc5fe6..e9aa8c7a6fec 100644 --- a/net/tipc/subscr.h +++ b/net/tipc/subscr.h @@ -77,7 +77,8 @@ int tipc_subscrp_check_overlap(struct tipc_subscription *sub, u32 found_lower, void tipc_subscrp_report_overlap(struct tipc_subscription *sub, u32 found_lower, u32 found_upper, u32 event, u32 port_ref, u32 node, int must); -int tipc_topsrv_start(struct net *net); -void tipc_topsrv_stop(struct net *net); + +int __net_init tipc_topsrv_init_net(struct net *net); +void __net_exit tipc_topsrv_exit_net(struct net *net); #endif diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 81013490a99f..1968998e6c6c 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -12788,6 +12788,11 @@ void cfg80211_ch_switch_notify(struct net_device *dev, wdev->chandef = *chandef; wdev->preset_chandef = *chandef; + + if (wdev->iftype == NL80211_IFTYPE_STATION && + !WARN_ON(!wdev->current_bss)) + wdev->current_bss->pub.channel = chandef->chan; + nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, NL80211_CMD_CH_SWITCH_NOTIFY, 0); } diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 177a6c75f136..b04c03043976 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1340,7 +1340,7 @@ static int verify_newpolicy_info(struct xfrm_userpolicy_info *p) ret = verify_policy_dir(p->dir); if (ret) return ret; - if (p->index && ((p->index & XFRM_POLICY_MAX) != p->dir)) + if (p->index && (xfrm_policy_id2dir(p->index) != p->dir)) return -EINVAL; return 0; diff --git a/scripts/coccinelle/api/stream_open.cocci b/scripts/coccinelle/api/stream_open.cocci new file mode 100644 index 000000000000..350145da7669 --- /dev/null +++ b/scripts/coccinelle/api/stream_open.cocci @@ -0,0 +1,363 @@ +// SPDX-License-Identifier: GPL-2.0 +// Author: Kirill Smelkov (kirr@nexedi.com) +// +// Search for stream-like files that are using nonseekable_open and convert +// them to stream_open. A stream-like file is a file that does not use ppos in +// its read and write. Rationale for the conversion is to avoid deadlock in +// between read and write. + +virtual report +virtual patch +virtual explain // explain decisions in the patch (SPFLAGS="-D explain") + +// stream-like reader & writer - ones that do not depend on f_pos. +@ stream_reader @ +identifier readstream, ppos; +identifier f, buf, len; +type loff_t; +@@ + ssize_t readstream(struct file *f, char *buf, size_t len, loff_t *ppos) + { + ... when != ppos + } + +@ stream_writer @ +identifier writestream, ppos; +identifier f, buf, len; +type loff_t; +@@ + ssize_t writestream(struct file *f, const char *buf, size_t len, loff_t *ppos) + { + ... when != ppos + } + + +// a function that blocks +@ blocks @ +identifier block_f; +identifier wait_event =~ "^wait_event_.*"; +@@ + block_f(...) { + ... when exists + wait_event(...) + ... when exists + } + +// stream_reader that can block inside. +// +// XXX wait_* can be called not directly from current function (e.g. func -> f -> g -> wait()) +// XXX currently reader_blocks supports only direct and 1-level indirect cases. +@ reader_blocks_direct @ +identifier stream_reader.readstream; +identifier wait_event =~ "^wait_event_.*"; +@@ + readstream(...) + { + ... when exists + wait_event(...) + ... when exists + } + +@ reader_blocks_1 @ +identifier stream_reader.readstream; +identifier blocks.block_f; +@@ + readstream(...) + { + ... when exists + block_f(...) + ... when exists + } + +@ reader_blocks depends on reader_blocks_direct || reader_blocks_1 @ +identifier stream_reader.readstream; +@@ + readstream(...) { + ... + } + + +// file_operations + whether they have _any_ .read, .write, .llseek ... at all. +// +// XXX add support for file_operations xxx[N] = ... (sound/core/pcm_native.c) +@ fops0 @ +identifier fops; +@@ + struct file_operations fops = { + ... + }; + +@ has_read @ +identifier fops0.fops; +identifier read_f; +@@ + struct file_operations fops = { + .read = read_f, + }; + +@ has_read_iter @ +identifier fops0.fops; +identifier read_iter_f; +@@ + struct file_operations fops = { + .read_iter = read_iter_f, + }; + +@ has_write @ +identifier fops0.fops; +identifier write_f; +@@ + struct file_operations fops = { + .write = write_f, + }; + +@ has_write_iter @ +identifier fops0.fops; +identifier write_iter_f; +@@ + struct file_operations fops = { + .write_iter = write_iter_f, + }; + +@ has_llseek @ +identifier fops0.fops; +identifier llseek_f; +@@ + struct file_operations fops = { + .llseek = llseek_f, + }; + +@ has_no_llseek @ +identifier fops0.fops; +@@ + struct file_operations fops = { + .llseek = no_llseek, + }; + +@ has_mmap @ +identifier fops0.fops; +identifier mmap_f; +@@ + struct file_operations fops = { + .mmap = mmap_f, + }; + +@ has_copy_file_range @ +identifier fops0.fops; +identifier copy_file_range_f; +@@ + struct file_operations fops = { + .copy_file_range = copy_file_range_f, + }; + +@ has_remap_file_range @ +identifier fops0.fops; +identifier remap_file_range_f; +@@ + struct file_operations fops = { + .remap_file_range = remap_file_range_f, + }; + +@ has_splice_read @ +identifier fops0.fops; +identifier splice_read_f; +@@ + struct file_operations fops = { + .splice_read = splice_read_f, + }; + +@ has_splice_write @ +identifier fops0.fops; +identifier splice_write_f; +@@ + struct file_operations fops = { + .splice_write = splice_write_f, + }; + + +// file_operations that is candidate for stream_open conversion - it does not +// use mmap and other methods that assume @offset access to file. +// +// XXX for simplicity require no .{read/write}_iter and no .splice_{read/write} for now. +// XXX maybe_steam.fops cannot be used in other rules - it gives "bad rule maybe_stream or bad variable fops". +@ maybe_stream depends on (!has_llseek || has_no_llseek) && !has_mmap && !has_copy_file_range && !has_remap_file_range && !has_read_iter && !has_write_iter && !has_splice_read && !has_splice_write @ +identifier fops0.fops; +@@ + struct file_operations fops = { + }; + + +// ---- conversions ---- + +// XXX .open = nonseekable_open -> .open = stream_open +// XXX .open = func -> openfunc -> nonseekable_open + +// read & write +// +// if both are used in the same file_operations together with an opener - +// under that conditions we can use stream_open instead of nonseekable_open. +@ fops_rw depends on maybe_stream @ +identifier fops0.fops, openfunc; +identifier stream_reader.readstream; +identifier stream_writer.writestream; +@@ + struct file_operations fops = { + .open = openfunc, + .read = readstream, + .write = writestream, + }; + +@ report_rw depends on report @ +identifier fops_rw.openfunc; +position p1; +@@ + openfunc(...) { + <... + nonseekable_open@p1 + ...> + } + +@ script:python depends on report && reader_blocks @ +fops << fops0.fops; +p << report_rw.p1; +@@ +coccilib.report.print_report(p[0], + "ERROR: %s: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix." % (fops,)) + +@ script:python depends on report && !reader_blocks @ +fops << fops0.fops; +p << report_rw.p1; +@@ +coccilib.report.print_report(p[0], + "WARNING: %s: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open." % (fops,)) + + +@ explain_rw_deadlocked depends on explain && reader_blocks @ +identifier fops_rw.openfunc; +@@ + openfunc(...) { + <... +- nonseekable_open ++ nonseekable_open /* read & write (was deadlock) */ + ...> + } + + +@ explain_rw_nodeadlock depends on explain && !reader_blocks @ +identifier fops_rw.openfunc; +@@ + openfunc(...) { + <... +- nonseekable_open ++ nonseekable_open /* read & write (no direct deadlock) */ + ...> + } + +@ patch_rw depends on patch @ +identifier fops_rw.openfunc; +@@ + openfunc(...) { + <... +- nonseekable_open ++ stream_open + ...> + } + + +// read, but not write +@ fops_r depends on maybe_stream && !has_write @ +identifier fops0.fops, openfunc; +identifier stream_reader.readstream; +@@ + struct file_operations fops = { + .open = openfunc, + .read = readstream, + }; + +@ report_r depends on report @ +identifier fops_r.openfunc; +position p1; +@@ + openfunc(...) { + <... + nonseekable_open@p1 + ...> + } + +@ script:python depends on report @ +fops << fops0.fops; +p << report_r.p1; +@@ +coccilib.report.print_report(p[0], + "WARNING: %s: .read() has stream semantic; safe to change nonseekable_open -> stream_open." % (fops,)) + +@ explain_r depends on explain @ +identifier fops_r.openfunc; +@@ + openfunc(...) { + <... +- nonseekable_open ++ nonseekable_open /* read only */ + ...> + } + +@ patch_r depends on patch @ +identifier fops_r.openfunc; +@@ + openfunc(...) { + <... +- nonseekable_open ++ stream_open + ...> + } + + +// write, but not read +@ fops_w depends on maybe_stream && !has_read @ +identifier fops0.fops, openfunc; +identifier stream_writer.writestream; +@@ + struct file_operations fops = { + .open = openfunc, + .write = writestream, + }; + +@ report_w depends on report @ +identifier fops_w.openfunc; +position p1; +@@ + openfunc(...) { + <... + nonseekable_open@p1 + ...> + } + +@ script:python depends on report @ +fops << fops0.fops; +p << report_w.p1; +@@ +coccilib.report.print_report(p[0], + "WARNING: %s: .write() has stream semantic; safe to change nonseekable_open -> stream_open." % (fops,)) + +@ explain_w depends on explain @ +identifier fops_w.openfunc; +@@ + openfunc(...) { + <... +- nonseekable_open ++ nonseekable_open /* write only */ + ...> + } + +@ patch_w depends on patch @ +identifier fops_w.openfunc; +@@ + openfunc(...) { + <... +- nonseekable_open ++ stream_open + ...> + } + + +// no read, no write - don't change anything diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index a8045b8a2a18..b249b1b85746 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1636,9 +1636,11 @@ static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll) ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid; jack = snd_hda_jack_tbl_get(codec, pin_nid); - if (jack) + if (jack) { jack->block_report = !ret; - + jack->pin_sense = (eld->monitor_present && eld->eld_valid) ? + AC_PINSENSE_PRESENCE : 0; + } mutex_unlock(&per_pin->lock); snd_hda_power_down_pm(codec); return ret; diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 5d8ac2d798df..68d96c2e8cde 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -772,11 +772,10 @@ static int alc_init(struct hda_codec *codec) if (spec->init_hook) spec->init_hook(codec); + snd_hda_gen_init(codec); alc_fix_pll(codec); alc_auto_init_amp(codec, spec->init_amp); - snd_hda_gen_init(codec); - snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_INIT); return 0; @@ -5779,7 +5778,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x17aa, 0x3112, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI), SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC), - SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP), + SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo B50-70", ALC269_FIXUP_DMIC_THINKPAD_ACPI), SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC), SND_PCI_QUIRK(0x17aa, 0x501e, "Thinkpad L440", ALC292_FIXUP_TPT440_DOCK), @@ -6237,7 +6236,7 @@ static int patch_alc269(struct hda_codec *codec) spec = codec->spec; spec->gen.shared_mic_vref_pin = 0x18; - codec->power_save_node = 1; + codec->power_save_node = 0; #ifdef CONFIG_PM codec->patch_ops.suspend = alc269_suspend; diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c index 584aab83e478..3e65dc74eb33 100644 --- a/sound/soc/codecs/max98090.c +++ b/sound/soc/codecs/max98090.c @@ -1209,14 +1209,14 @@ static const struct snd_soc_dapm_widget max98090_dapm_widgets[] = { &max98090_right_rcv_mixer_controls[0], ARRAY_SIZE(max98090_right_rcv_mixer_controls)), - SND_SOC_DAPM_MUX("LINMOD Mux", M98090_REG_LOUTR_MIXER, - M98090_LINMOD_SHIFT, 0, &max98090_linmod_mux), + SND_SOC_DAPM_MUX("LINMOD Mux", SND_SOC_NOPM, 0, 0, + &max98090_linmod_mux), - SND_SOC_DAPM_MUX("MIXHPLSEL Mux", M98090_REG_HP_CONTROL, - M98090_MIXHPLSEL_SHIFT, 0, &max98090_mixhplsel_mux), + SND_SOC_DAPM_MUX("MIXHPLSEL Mux", SND_SOC_NOPM, 0, 0, + &max98090_mixhplsel_mux), - SND_SOC_DAPM_MUX("MIXHPRSEL Mux", M98090_REG_HP_CONTROL, - M98090_MIXHPRSEL_SHIFT, 0, &max98090_mixhprsel_mux), + SND_SOC_DAPM_MUX("MIXHPRSEL Mux", SND_SOC_NOPM, 0, 0, + &max98090_mixhprsel_mux), SND_SOC_DAPM_PGA("HP Left Out", M98090_REG_OUTPUT_ENABLE, M98090_HPLEN_SHIFT, 0, NULL, 0), diff --git a/sound/soc/codecs/rt5677-spi.c b/sound/soc/codecs/rt5677-spi.c index 91879ea95415..01aa75cde571 100644 --- a/sound/soc/codecs/rt5677-spi.c +++ b/sound/soc/codecs/rt5677-spi.c @@ -60,13 +60,15 @@ static DEFINE_MUTEX(spi_mutex); * RT5677_SPI_READ/WRITE_32: Transfer 4 bytes * RT5677_SPI_READ/WRITE_BURST: Transfer any multiples of 8 bytes * - * For example, reading 260 bytes at 0x60030002 uses the following commands: - * 0x60030002 RT5677_SPI_READ_16 2 bytes + * Note: + * 16 Bit writes and reads are restricted to the address range + * 0x18020000 ~ 0x18021000 + * + * For example, reading 256 bytes at 0x60030004 uses the following commands: * 0x60030004 RT5677_SPI_READ_32 4 bytes * 0x60030008 RT5677_SPI_READ_BURST 240 bytes * 0x600300F8 RT5677_SPI_READ_BURST 8 bytes * 0x60030100 RT5677_SPI_READ_32 4 bytes - * 0x60030104 RT5677_SPI_READ_16 2 bytes * * Input: * @read: true for read commands; false for write commands @@ -81,15 +83,13 @@ static u8 rt5677_spi_select_cmd(bool read, u32 align, u32 remain, u32 *len) { u8 cmd; - if (align == 2 || align == 6 || remain == 2) { - cmd = RT5677_SPI_READ_16; - *len = 2; - } else if (align == 4 || remain <= 6) { + if (align == 4 || remain <= 4) { cmd = RT5677_SPI_READ_32; *len = 4; } else { cmd = RT5677_SPI_READ_BURST; - *len = min_t(u32, remain & ~7, RT5677_SPI_BURST_LEN); + *len = (((remain - 1) >> 3) + 1) << 3; + *len = min_t(u32, *len, RT5677_SPI_BURST_LEN); } return read ? cmd : cmd + 1; } @@ -110,7 +110,7 @@ static void rt5677_spi_reverse(u8 *dst, u32 dstlen, const u8 *src, u32 srclen) } } -/* Read DSP address space using SPI. addr and len have to be 2-byte aligned. */ +/* Read DSP address space using SPI. addr and len have to be 4-byte aligned. */ int rt5677_spi_read(u32 addr, void *rxbuf, size_t len) { u32 offset; @@ -126,7 +126,7 @@ int rt5677_spi_read(u32 addr, void *rxbuf, size_t len) if (!g_spi) return -ENODEV; - if ((addr & 1) || (len & 1)) { + if ((addr & 3) || (len & 3)) { dev_err(&g_spi->dev, "Bad read align 0x%x(%zu)\n", addr, len); return -EACCES; } @@ -161,13 +161,13 @@ int rt5677_spi_read(u32 addr, void *rxbuf, size_t len) } EXPORT_SYMBOL_GPL(rt5677_spi_read); -/* Write DSP address space using SPI. addr has to be 2-byte aligned. - * If len is not 2-byte aligned, an extra byte of zero is written at the end +/* Write DSP address space using SPI. addr has to be 4-byte aligned. + * If len is not 4-byte aligned, then extra zeros are written at the end * as padding. */ int rt5677_spi_write(u32 addr, const void *txbuf, size_t len) { - u32 offset, len_with_pad = len; + u32 offset; int status = 0; struct spi_transfer t; struct spi_message m; @@ -180,22 +180,19 @@ int rt5677_spi_write(u32 addr, const void *txbuf, size_t len) if (!g_spi) return -ENODEV; - if (addr & 1) { + if (addr & 3) { dev_err(&g_spi->dev, "Bad write align 0x%x(%zu)\n", addr, len); return -EACCES; } - if (len & 1) - len_with_pad = len + 1; - memset(&t, 0, sizeof(t)); t.tx_buf = buf; t.speed_hz = RT5677_SPI_FREQ; spi_message_init_with_transfers(&m, &t, 1); - for (offset = 0; offset < len_with_pad;) { + for (offset = 0; offset < len;) { spi_cmd = rt5677_spi_select_cmd(false, (addr + offset) & 7, - len_with_pad - offset, &t.len); + len - offset, &t.len); /* Construct SPI message header */ buf[0] = spi_cmd; diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index 2ccb8bccc9d4..512ec25c9ead 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c @@ -43,6 +43,7 @@ #define MCASP_MAX_AFIFO_DEPTH 64 +#ifdef CONFIG_PM static u32 context_regs[] = { DAVINCI_MCASP_TXFMCTL_REG, DAVINCI_MCASP_RXFMCTL_REG, @@ -65,6 +66,7 @@ struct davinci_mcasp_context { u32 *xrsr_regs; /* for serializer configuration */ bool pm_state; }; +#endif struct davinci_mcasp_ruledata { struct davinci_mcasp *mcasp; diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 3066e068aae5..d420995ed45b 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -171,16 +171,17 @@ config SND_MPC52xx_SOC_EFIKA endif # SND_POWERPC_SOC +config SND_SOC_IMX_PCM_FIQ + tristate + default y if SND_SOC_IMX_SSI=y && (SND_SOC_FSL_SSI=m || SND_SOC_FSL_SPDIF=m) && (MXC_TZIC || MXC_AVIC) + select FIQ + if SND_IMX_SOC config SND_SOC_IMX_SSI tristate select SND_SOC_FSL_UTILS -config SND_SOC_IMX_PCM_FIQ - tristate - select FIQ - comment "SoC Audio support for Freescale i.MX boards:" config SND_MXC_SOC_WM1133_EV1 diff --git a/sound/soc/fsl/eukrea-tlv320.c b/sound/soc/fsl/eukrea-tlv320.c index 883087f2b092..38132143b7d5 100644 --- a/sound/soc/fsl/eukrea-tlv320.c +++ b/sound/soc/fsl/eukrea-tlv320.c @@ -119,13 +119,13 @@ static int eukrea_tlv320_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "fsl,mux-int-port node missing or invalid.\n"); - return ret; + goto err; } ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port); if (ret) { dev_err(&pdev->dev, "fsl,mux-ext-port node missing or invalid.\n"); - return ret; + goto err; } /* diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index 08b460ba06ef..61d2d955f26a 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -260,12 +260,14 @@ static int fsl_sai_set_dai_fmt_tr(struct snd_soc_dai *cpu_dai, case SND_SOC_DAIFMT_CBS_CFS: val_cr2 |= FSL_SAI_CR2_BCD_MSTR; val_cr4 |= FSL_SAI_CR4_FSD_MSTR; + sai->is_slave_mode = false; break; case SND_SOC_DAIFMT_CBM_CFM: sai->is_slave_mode = true; break; case SND_SOC_DAIFMT_CBS_CFM: val_cr2 |= FSL_SAI_CR2_BCD_MSTR; + sai->is_slave_mode = false; break; case SND_SOC_DAIFMT_CBM_CFS: val_cr4 |= FSL_SAI_CR4_FSD_MSTR; diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c index b9e42b503a37..4f8bdb7650e8 100644 --- a/sound/soc/fsl/fsl_utils.c +++ b/sound/soc/fsl/fsl_utils.c @@ -75,6 +75,7 @@ int fsl_asoc_get_dma_channel(struct device_node *ssi_np, iprop = of_get_property(dma_np, "cell-index", NULL); if (!iprop) { of_node_put(dma_np); + of_node_put(dma_channel_np); return -EINVAL; } *dma_id = be32_to_cpup(iprop); diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index f7eb0d2f797b..1f7eb3816cd7 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -2112,6 +2112,8 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); if (! kctl) { usb_audio_err(state->chip, "cannot malloc kcontrol\n"); + for (i = 0; i < desc->bNrInPins; i++) + kfree(namelist[i]); kfree(namelist); kfree(cval); return -ENOMEM; diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h index 5ad9ee1dd7f6..57187d6790c1 100644 --- a/tools/include/linux/bitops.h +++ b/tools/include/linux/bitops.h @@ -3,17 +3,14 @@ #include #include -#include - #ifndef __WORDSIZE #define __WORDSIZE (__SIZEOF_LONG__ * 8) #endif #define BITS_PER_LONG __WORDSIZE +#include +#include -#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG)) -#define BIT_WORD(nr) ((nr) / BITS_PER_LONG) -#define BITS_PER_BYTE 8 #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long)) #define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64)) #define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32)) diff --git a/tools/include/linux/bits.h b/tools/include/linux/bits.h new file mode 100644 index 000000000000..2b7b532c1d51 --- /dev/null +++ b/tools/include/linux/bits.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LINUX_BITS_H +#define __LINUX_BITS_H +#include + +#define BIT(nr) (1UL << (nr)) +#define BIT_ULL(nr) (1ULL << (nr)) +#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG)) +#define BIT_WORD(nr) ((nr) / BITS_PER_LONG) +#define BIT_ULL_MASK(nr) (1ULL << ((nr) % BITS_PER_LONG_LONG)) +#define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG) +#define BITS_PER_BYTE 8 + +/* + * Create a contiguous bitmask starting at bit position @l and ending at + * position @h. For example + * GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000. + */ +#define GENMASK(h, l) \ + (((~0UL) - (1UL << (l)) + 1) & (~0UL >> (BITS_PER_LONG - 1 - (h)))) + +#define GENMASK_ULL(h, l) \ + (((~0ULL) - (1ULL << (l)) + 1) & \ + (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h)))) + +#endif /* __LINUX_BITS_H */ diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c index 73d192f57dc3..df41deed0320 100644 --- a/tools/perf/bench/numa.c +++ b/tools/perf/bench/numa.c @@ -32,6 +32,10 @@ #include #include +#ifndef RUSAGE_THREAD +# define RUSAGE_THREAD 1 +#endif + /* * Regular printout to the terminal, supressed if -q is specified: */ diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 62b38f2ff60d..c1944765533c 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -58,6 +58,7 @@ enum intel_pt_pkt_state { INTEL_PT_STATE_NO_IP, INTEL_PT_STATE_ERR_RESYNC, INTEL_PT_STATE_IN_SYNC, + INTEL_PT_STATE_TNT_CONT, INTEL_PT_STATE_TNT, INTEL_PT_STATE_TIP, INTEL_PT_STATE_TIP_PGD, @@ -72,8 +73,9 @@ static inline bool intel_pt_sample_time(enum intel_pt_pkt_state pkt_state) case INTEL_PT_STATE_NO_IP: case INTEL_PT_STATE_ERR_RESYNC: case INTEL_PT_STATE_IN_SYNC: - case INTEL_PT_STATE_TNT: + case INTEL_PT_STATE_TNT_CONT: return true; + case INTEL_PT_STATE_TNT: case INTEL_PT_STATE_TIP: case INTEL_PT_STATE_TIP_PGD: case INTEL_PT_STATE_FUP: @@ -854,16 +856,20 @@ static uint64_t intel_pt_next_period(struct intel_pt_decoder *decoder) timestamp = decoder->timestamp + decoder->timestamp_insn_cnt; masked_timestamp = timestamp & decoder->period_mask; if (decoder->continuous_period) { - if (masked_timestamp != decoder->last_masked_timestamp) + if (masked_timestamp > decoder->last_masked_timestamp) return 1; } else { timestamp += 1; masked_timestamp = timestamp & decoder->period_mask; - if (masked_timestamp != decoder->last_masked_timestamp) { + if (masked_timestamp > decoder->last_masked_timestamp) { decoder->last_masked_timestamp = masked_timestamp; decoder->continuous_period = true; } } + + if (masked_timestamp < decoder->last_masked_timestamp) + return decoder->period_ticks; + return decoder->period_ticks - (timestamp - masked_timestamp); } @@ -892,7 +898,10 @@ static void intel_pt_sample_insn(struct intel_pt_decoder *decoder) case INTEL_PT_PERIOD_TICKS: timestamp = decoder->timestamp + decoder->timestamp_insn_cnt; masked_timestamp = timestamp & decoder->period_mask; - decoder->last_masked_timestamp = masked_timestamp; + if (masked_timestamp > decoder->last_masked_timestamp) + decoder->last_masked_timestamp = masked_timestamp; + else + decoder->last_masked_timestamp += decoder->period_ticks; break; case INTEL_PT_PERIOD_NONE: case INTEL_PT_PERIOD_MTC: @@ -1141,7 +1150,9 @@ static int intel_pt_walk_tnt(struct intel_pt_decoder *decoder) return -ENOENT; } decoder->tnt.count -= 1; - if (!decoder->tnt.count) + if (decoder->tnt.count) + decoder->pkt_state = INTEL_PT_STATE_TNT_CONT; + else decoder->pkt_state = INTEL_PT_STATE_IN_SYNC; decoder->tnt.payload <<= 1; decoder->state.from_ip = decoder->ip; @@ -1172,7 +1183,9 @@ static int intel_pt_walk_tnt(struct intel_pt_decoder *decoder) if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) { decoder->tnt.count -= 1; - if (!decoder->tnt.count) + if (decoder->tnt.count) + decoder->pkt_state = INTEL_PT_STATE_TNT_CONT; + else decoder->pkt_state = INTEL_PT_STATE_IN_SYNC; if (decoder->tnt.payload & BIT63) { decoder->tnt.payload <<= 1; @@ -1192,8 +1205,11 @@ static int intel_pt_walk_tnt(struct intel_pt_decoder *decoder) return 0; } decoder->ip += intel_pt_insn.length; - if (!decoder->tnt.count) + if (!decoder->tnt.count) { + decoder->sample_timestamp = decoder->timestamp; + decoder->sample_insn_cnt = decoder->timestamp_insn_cnt; return -EAGAIN; + } decoder->tnt.payload <<= 1; continue; } @@ -2116,6 +2132,7 @@ const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder) err = intel_pt_walk_trace(decoder); break; case INTEL_PT_STATE_TNT: + case INTEL_PT_STATE_TNT_CONT: err = intel_pt_walk_tnt(decoder); if (err == -EAGAIN) err = intel_pt_walk_trace(decoder); diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c index accb7ece1d3c..3d7af024c73f 100644 --- a/tools/perf/util/string.c +++ b/tools/perf/util/string.c @@ -1,4 +1,5 @@ #include "util.h" +#include #include "linux/string.h" #define K 1024LL diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index dcc659017976..ee5d1dfe13da 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -76,7 +76,6 @@ #include #include #include -#include #include extern const char *graph_line;