- Linux-stable-mirror - lists.linaro.org

[Linux-stable-mirror] [PATCH] phy: tegra: fix device-tree node lookups

by Johan Hovold

Fix child-node lookups during probe, which ended up searching the whole device tree depth-first starting at the parents rather than just matching on their children. To make things worse, some parent nodes could end up being being prematurely freed (by tegra_xusb_pad_register()) as of_find_node_by_name() drops a reference to its first argument. Fixes: 53d2a715c240 ("phy: Add Tegra XUSB pad controller support") Cc: stable <stable(a)vger.kernel.org> # 4.7 Cc: Thierry Reding <treding(a)nvidia.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> --- drivers/phy/tegra/xusb.c | 58 ++++++++++++++++++++++++------------------------ 1 file changed, 29 insertions(+), 29 deletions(-) diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c index 4307bf0013e1..63e916d4d069 100644 --- a/drivers/phy/tegra/xusb.c +++ b/drivers/phy/tegra/xusb.c @@ -75,14 +75,14 @@ MODULE_DEVICE_TABLE(of, tegra_xusb_padctl_of_match); static struct device_node * tegra_xusb_find_pad_node(struct tegra_xusb_padctl *padctl, const char *name) { - /* - * of_find_node_by_name() drops a reference, so make sure to grab one. - */ - struct device_node *np = of_node_get(padctl->dev->of_node); + struct device_node *pads, *np; + + pads = of_get_child_by_name(padctl->dev->of_node, "pads"); + if (!pads) + return NULL; - np = of_find_node_by_name(np, "pads"); - if (np) - np = of_find_node_by_name(np, name); + np = of_get_child_by_name(pads, name); + of_node_put(pads); return np; } @@ -90,16 +90,16 @@ tegra_xusb_find_pad_node(struct tegra_xusb_padctl *padctl, const char *name) static struct device_node * tegra_xusb_pad_find_phy_node(struct tegra_xusb_pad *pad, unsigned int index) { - /* - * of_find_node_by_name() drops a reference, so make sure to grab one. - */ - struct device_node *np = of_node_get(pad->dev.of_node); + struct device_node *np, *lanes; - np = of_find_node_by_name(np, "lanes"); - if (!np) + lanes = of_get_child_by_name(pad->dev.of_node, "lanes"); + if (!lanes) return NULL; - return of_find_node_by_name(np, pad->soc->lanes[index].name); + np = of_get_child_by_name(lanes, pad->soc->lanes[index].name); + of_node_put(lanes); + + return np; } static int @@ -195,7 +195,7 @@ int tegra_xusb_pad_register(struct tegra_xusb_pad *pad, unsigned int i; int err; - children = of_find_node_by_name(pad->dev.of_node, "lanes"); + children = of_get_child_by_name(pad->dev.of_node, "lanes"); if (!children) return -ENODEV; @@ -444,21 +444,21 @@ static struct device_node * tegra_xusb_find_port_node(struct tegra_xusb_padctl *padctl, const char *type, unsigned int index) { - /* - * of_find_node_by_name() drops a reference, so make sure to grab one. - */ - struct device_node *np = of_node_get(padctl->dev->of_node); + struct device_node *ports, *np; + char *name; - np = of_find_node_by_name(np, "ports"); - if (np) { - char *name; + ports = of_get_child_by_name(padctl->dev->of_node, "ports"); + if (!ports) + return NULL; - name = kasprintf(GFP_KERNEL, "%s-%u", type, index); - if (!name) - return ERR_PTR(-ENOMEM); - np = of_find_node_by_name(np, name); - kfree(name); + name = kasprintf(GFP_KERNEL, "%s-%u", type, index); + if (!name) { + of_node_put(ports); + return ERR_PTR(-ENOMEM); } + np = of_get_child_by_name(ports, name); + kfree(name); + of_node_put(ports); return np; } @@ -847,7 +847,7 @@ static void tegra_xusb_remove_ports(struct tegra_xusb_padctl *padctl) static int tegra_xusb_padctl_probe(struct platform_device *pdev) { - struct device_node *np = of_node_get(pdev->dev.of_node); + struct device_node *np = pdev->dev.of_node; const struct tegra_xusb_padctl_soc *soc; struct tegra_xusb_padctl *padctl; const struct of_device_id *match; @@ -855,7 +855,7 @@ static int tegra_xusb_padctl_probe(struct platform_device *pdev) int err; /* for backwards compatibility with old device trees */ - np = of_find_node_by_name(np, "pads"); + np = of_get_child_by_name(np, "pads"); if (!np) { dev_warn(&pdev->dev, "deprecated DT, using legacy driver\n"); return tegra_xusb_padctl_legacy_probe(pdev); -- 2.15.0

7 years, 7 months

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Re: [Linux-stable-mirror] Linux 4.13.13

by Greg KH

diff --git a/Makefile b/Makefile index a7c847f495b0..1608a9b71381 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 13 -SUBLEVEL = 12 +SUBLEVEL = 13 EXTRAVERSION = NAME = Fearless Coyote diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 948c648fea00..0fcd82f01388 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -154,30 +154,26 @@ static void dump_mem(const char *lvl, const char *str, unsigned long bottom, set_fs(fs); } -static void dump_instr(const char *lvl, struct pt_regs *regs) +static void __dump_instr(const char *lvl, struct pt_regs *regs) { unsigned long addr = instruction_pointer(regs); const int thumb = thumb_mode(regs); const int width = thumb ? 4 : 8; - mm_segment_t fs; char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str; int i; /* - * We need to switch to kernel mode so that we can use __get_user - * to safely read from kernel space. Note that we now dump the - * code first, just in case the backtrace kills us. + * Note that we now dump the code first, just in case the backtrace + * kills us. */ - fs = get_fs(); - set_fs(KERNEL_DS); for (i = -4; i < 1 + !!thumb; i++) { unsigned int val, bad; if (thumb) - bad = __get_user(val, &((u16 *)addr)[i]); + bad = get_user(val, &((u16 *)addr)[i]); else - bad = __get_user(val, &((u32 *)addr)[i]); + bad = get_user(val, &((u32 *)addr)[i]); if (!bad) p += sprintf(p, i == 0 ? "(%0*x) " : "%0*x ", @@ -188,8 +184,20 @@ static void dump_instr(const char *lvl, struct pt_regs *regs) } } printk("%sCode: %s\n", lvl, str); +} - set_fs(fs); +static void dump_instr(const char *lvl, struct pt_regs *regs) +{ + mm_segment_t fs; + + if (!user_mode(regs)) { + fs = get_fs(); + set_fs(KERNEL_DS); + __dump_instr(lvl, regs); + set_fs(fs); + } else { + __dump_instr(lvl, regs); + } } #ifdef CONFIG_ARM_UNWIND diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c index df7acea3747a..4674f1efbe7a 100644 --- a/arch/mips/ar7/platform.c +++ b/arch/mips/ar7/platform.c @@ -575,6 +575,7 @@ static int __init ar7_register_uarts(void) uart_port.type = PORT_AR7; uart_port.uartclk = clk_get_rate(bus_clk) / 2; uart_port.iotype = UPIO_MEM32; + uart_port.flags = UPF_FIXED_TYPE; uart_port.regshift = 2; uart_port.line = 0; @@ -653,6 +654,10 @@ static int __init ar7_register_devices(void) u32 val; int res; + res = ar7_gpio_init(); + if (res) + pr_warn("unable to register gpios: %d\n", res); + res = ar7_register_uarts(); if (res) pr_err("unable to setup uart(s): %d\n", res); diff --git a/arch/mips/ar7/prom.c b/arch/mips/ar7/prom.c index 4fd83336131a..dd53987a690f 100644 --- a/arch/mips/ar7/prom.c +++ b/arch/mips/ar7/prom.c @@ -246,8 +246,6 @@ void __init prom_init(void) ar7_init_cmdline(fw_arg0, (char **)fw_arg1); ar7_init_env((struct env_var *)fw_arg2); console_config(); - - ar7_gpio_init(); } #define PORT(offset) (KSEG1ADDR(AR7_REGS_UART0 + (offset * 4))) diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h index cfdbab015769..163317fd3d7e 100644 --- a/arch/mips/include/asm/mips-cm.h +++ b/arch/mips/include/asm/mips-cm.h @@ -240,8 +240,8 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80) #define CM_GCR_BASE_GCRBASE_MSK (_ULCAST_(0x1ffff) << 15) #define CM_GCR_BASE_CMDEFTGT_SHF 0 #define CM_GCR_BASE_CMDEFTGT_MSK (_ULCAST_(0x3) << 0) -#define CM_GCR_BASE_CMDEFTGT_DISABLED 0 -#define CM_GCR_BASE_CMDEFTGT_MEM 1 +#define CM_GCR_BASE_CMDEFTGT_MEM 0 +#define CM_GCR_BASE_CMDEFTGT_RESERVED 1 #define CM_GCR_BASE_CMDEFTGT_IOCU0 2 #define CM_GCR_BASE_CMDEFTGT_IOCU1 3 diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c index 1b070a76fcdd..5e0d87f4958f 100644 --- a/arch/mips/kernel/smp-bmips.c +++ b/arch/mips/kernel/smp-bmips.c @@ -589,11 +589,11 @@ void __init bmips_cpu_setup(void) /* Flush and enable RAC */ cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG); - __raw_writel(cfg | 0x100, BMIPS_RAC_CONFIG); + __raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG); __raw_readl(cbr + BMIPS_RAC_CONFIG); cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG); - __raw_writel(cfg | 0xf, BMIPS_RAC_CONFIG); + __raw_writel(cfg | 0xf, cbr + BMIPS_RAC_CONFIG); __raw_readl(cbr + BMIPS_RAC_CONFIG); cfg = __raw_readl(cbr + BMIPS_RAC_ADDRESS_RANGE); diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index b42812e014c0..1fcc30ff9569 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -645,6 +645,16 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, hnow_v = hpte_new_to_old_v(hnow_v, hnow_r); hnow_r = hpte_new_to_old_r(hnow_r); } + + /* + * If the HPT is being resized, don't update the HPTE, + * instead let the guest retry after the resize operation is complete. + * The synchronization for hpte_setup_done test vs. set is provided + * by the HPTE lock. + */ + if (!kvm->arch.hpte_setup_done) + goto out_unlock; + if ((hnow_v & ~HPTE_V_HVLOCK) != hpte[0] || hnow_r != hpte[1] || rev->guest_rpte != hpte[2]) /* HPTE has been changed under us; let the guest retry */ diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 9ecd9aea0b54..c059541743f0 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2688,11 +2688,14 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc) * Hard-disable interrupts, and check resched flag and signals. * If we need to reschedule or deliver a signal, clean up * and return without going into the guest(s). + * If the hpte_setup_done flag has been cleared, don't go into the + * guest because that means a HPT resize operation is in progress. */ local_irq_disable(); hard_irq_disable(); if (lazy_irq_pending() || need_resched() || - recheck_signals(&core_info)) { + recheck_signals(&core_info) || + (!kvm_is_radix(vc->kvm) && !vc->kvm->arch.hpte_setup_done)) { local_irq_enable(); vc->vcore_state = VCORE_INACTIVE; /* Unlock all except the primary vcore */ @@ -3061,7 +3064,7 @@ static void kvmppc_vcore_blocked(struct kvmppc_vcore *vc) static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) { - int n_ceded, i; + int n_ceded, i, r; struct kvmppc_vcore *vc; struct kvm_vcpu *v; @@ -3115,6 +3118,20 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) while (vcpu->arch.state == KVMPPC_VCPU_RUNNABLE && !signal_pending(current)) { + /* See if the HPT and VRMA are ready to go */ + if (!kvm_is_radix(vcpu->kvm) && + !vcpu->kvm->arch.hpte_setup_done) { + spin_unlock(&vc->lock); + r = kvmppc_hv_setup_htab_rma(vcpu); + spin_lock(&vc->lock); + if (r) { + kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY; + kvm_run->fail_entry.hardware_entry_failure_reason = 0; + vcpu->arch.ret = r; + break; + } + } + if (vc->vcore_state == VCORE_PREEMPT && vc->runner == NULL) kvmppc_vcore_end_preempt(vc); @@ -3232,13 +3249,6 @@ static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu) /* Order vcpus_running vs. hpte_setup_done, see kvmppc_alloc_reset_hpt */ smp_mb(); - /* On the first time here, set up HTAB and VRMA */ - if (!kvm_is_radix(vcpu->kvm) && !vcpu->kvm->arch.hpte_setup_done) { - r = kvmppc_hv_setup_htab_rma(vcpu); - if (r) - goto out; - } - flush_all_to_thread(current); /* Save userspace EBB and other register values */ @@ -3286,7 +3296,6 @@ static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu) } mtspr(SPRN_VRSAVE, user_vrsave); - out: vcpu->arch.state = KVMPPC_VCPU_NOTREADY; atomic_dec(&vcpu->kvm->arch.vcpus_running); return r; diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S index 93b945597ecf..7cfba738f104 100644 --- a/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S +++ b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S @@ -157,8 +157,8 @@ LABEL skip_ %I .endr # Find min length - vmovdqa _lens+0*16(state), %xmm0 - vmovdqa _lens+1*16(state), %xmm1 + vmovdqu _lens+0*16(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} @@ -178,8 +178,8 @@ LABEL skip_ %I vpsubd %xmm2, %xmm0, %xmm0 vpsubd %xmm2, %xmm1, %xmm1 - vmovdqa %xmm0, _lens+0*16(state) - vmovdqa %xmm1, _lens+1*16(state) + vmovdqu %xmm0, _lens+0*16(state) + vmovdqu %xmm1, _lens+1*16(state) # "state" and "args" are the same address, arg1 # len is arg2 @@ -235,8 +235,8 @@ ENTRY(sha1_mb_mgr_get_comp_job_avx2) jc .return_null # Find min length - vmovdqa _lens(state), %xmm0 - vmovdqa _lens+1*16(state), %xmm1 + vmovdqu _lens(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S index 8fe6338bcc84..16c4ccb1f154 100644 --- a/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S +++ b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S @@ -155,8 +155,8 @@ LABEL skip_ %I .endr # Find min length - vmovdqa _lens+0*16(state), %xmm0 - vmovdqa _lens+1*16(state), %xmm1 + vmovdqu _lens+0*16(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} @@ -176,8 +176,8 @@ LABEL skip_ %I vpsubd %xmm2, %xmm0, %xmm0 vpsubd %xmm2, %xmm1, %xmm1 - vmovdqa %xmm0, _lens+0*16(state) - vmovdqa %xmm1, _lens+1*16(state) + vmovdqu %xmm0, _lens+0*16(state) + vmovdqu %xmm1, _lens+1*16(state) # "state" and "args" are the same address, arg1 # len is arg2 @@ -234,8 +234,8 @@ ENTRY(sha256_mb_mgr_get_comp_job_avx2) jc .return_null # Find min length - vmovdqa _lens(state), %xmm0 - vmovdqa _lens+1*16(state), %xmm1 + vmovdqu _lens(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index 836877e2da22..cdf82492b770 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -21,7 +21,7 @@ obj-y += common.o obj-y += rdrand.o obj-y += match.o obj-y += bugs.o -obj-y += aperfmperf.o +obj-$(CONFIG_CPU_FREQ) += aperfmperf.o obj-$(CONFIG_PROC_FS) += proc.o obj-$(CONFIG_X86_FEATURE_NAMES) += capflags.o powerflags.o diff --git a/arch/x86/kernel/cpu/aperfmperf.c b/arch/x86/kernel/cpu/aperfmperf.c index 957813e0180d..0ee83321a313 100644 --- a/arch/x86/kernel/cpu/aperfmperf.c +++ b/arch/x86/kernel/cpu/aperfmperf.c @@ -42,6 +42,10 @@ static void aperfmperf_snapshot_khz(void *dummy) s64 time_delta = ktime_ms_delta(now, s->time); unsigned long flags; + /* Don't bother re-computing within the cache threshold time. */ + if (time_delta < APERFMPERF_CACHE_THRESHOLD_MS) + return; + local_irq_save(flags); rdmsrl(MSR_IA32_APERF, aperf); rdmsrl(MSR_IA32_MPERF, mperf); @@ -70,7 +74,6 @@ static void aperfmperf_snapshot_khz(void *dummy) unsigned int arch_freq_get_on_cpu(int cpu) { - s64 time_delta; unsigned int khz; if (!cpu_khz) @@ -79,12 +82,6 @@ unsigned int arch_freq_get_on_cpu(int cpu) if (!static_cpu_has(X86_FEATURE_APERFMPERF)) return 0; - /* Don't bother re-computing within the cache threshold time. */ - time_delta = ktime_ms_delta(ktime_get(), per_cpu(samples.time, cpu)); - khz = per_cpu(samples.khz, cpu); - if (khz && time_delta < APERFMPERF_CACHE_THRESHOLD_MS) - return khz; - smp_call_function_single(cpu, aperfmperf_snapshot_khz, NULL, 1); khz = per_cpu(samples.khz, cpu); if (khz) diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c index 510e69596278..6df621ae62a7 100644 --- a/arch/x86/kernel/cpu/proc.c +++ b/arch/x86/kernel/cpu/proc.c @@ -77,10 +77,8 @@ static int show_cpuinfo(struct seq_file *m, void *v) seq_printf(m, "microcode\t: 0x%x\n", c->microcode); if (cpu_has(c, X86_FEATURE_TSC)) { - unsigned int freq = arch_freq_get_on_cpu(cpu); + unsigned int freq = cpufreq_quick_get(cpu); - if (!freq) - freq = cpufreq_quick_get(cpu); if (!freq) freq = cpu_khz; seq_printf(m, "cpu MHz\t\t: %u.%03u\n", diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 54b9e89d4d6b..893fd8c849e2 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -193,6 +193,12 @@ static void smp_callin(void) */ smp_store_cpu_info(cpuid); + /* + * The topology information must be up to date before + * calibrate_delay() and notify_cpu_starting(). + */ + set_cpu_sibling_map(raw_smp_processor_id()); + /* * Get our bogomips. * Update loops_per_jiffy in cpu_data. Previous call to @@ -203,11 +209,6 @@ static void smp_callin(void) cpu_data(cpuid).loops_per_jiffy = loops_per_jiffy; pr_debug("Stack at about %p\n", &cpuid); - /* - * This must be done before setting cpu_online_mask - * or calling notify_cpu_starting. - */ - set_cpu_sibling_map(raw_smp_processor_id()); wmb(); notify_cpu_starting(cpuid); diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index bf54309b85da..b2157d4a5338 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -221,9 +221,6 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str, if (fixup_exception(regs, trapnr)) return 0; - if (fixup_bug(regs, trapnr)) - return 0; - tsk->thread.error_code = error_code; tsk->thread.trap_nr = trapnr; die(str, regs, error_code); @@ -304,6 +301,13 @@ static void do_error_trap(struct pt_regs *regs, long error_code, char *str, RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU"); + /* + * WARN*()s end up here; fix them up before we call the + * notifier chain. + */ + if (!user_mode(regs) && fixup_bug(regs, trapnr)) + return; + if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) != NOTIFY_STOP) { cond_local_irq_enable(regs); diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 796d96bb0821..ad2b925a808e 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -1346,12 +1346,10 @@ void __init tsc_init(void) unsigned long calibrate_delay_is_known(void) { int sibling, cpu = smp_processor_id(); - struct cpumask *mask = topology_core_cpumask(cpu); + int constant_tsc = cpu_has(&cpu_data(cpu), X86_FEATURE_CONSTANT_TSC); + const struct cpumask *mask = topology_core_cpumask(cpu); - if (!tsc_disabled && !cpu_has(&cpu_data(cpu), X86_FEATURE_CONSTANT_TSC)) - return 0; - - if (!mask) + if (tsc_disabled || !constant_tsc || !mask) return 0; sibling = cpumask_any_but(mask, cpu); diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c index 350f7096baac..7913b6921959 100644 --- a/arch/x86/oprofile/op_model_ppro.c +++ b/arch/x86/oprofile/op_model_ppro.c @@ -212,8 +212,8 @@ static void arch_perfmon_setup_counters(void) eax.full = cpuid_eax(0xa); /* Workaround for BIOS bugs in 6/15. Taken from perfmon2 */ - if (eax.split.version_id == 0 && __this_cpu_read(cpu_info.x86) == 6 && - __this_cpu_read(cpu_info.x86_model) == 15) { + if (eax.split.version_id == 0 && boot_cpu_data.x86 == 6 && + boot_cpu_data.x86_model == 15) { eax.split.version_id = 2; eax.split.num_counters = 2; eax.split.bit_width = 40; diff --git a/crypto/ccm.c b/crypto/ccm.c index 1ce37ae0ce56..0a083342ec8c 100644 --- a/crypto/ccm.c +++ b/crypto/ccm.c @@ -363,7 +363,7 @@ static int crypto_ccm_decrypt(struct aead_request *req) unsigned int cryptlen = req->cryptlen; u8 *authtag = pctx->auth_tag; u8 *odata = pctx->odata; - u8 *iv = req->iv; + u8 *iv = pctx->idata; int err; cryptlen -= authsize; @@ -379,6 +379,8 @@ static int crypto_ccm_decrypt(struct aead_request *req) if (req->src != req->dst) dst = pctx->dst; + memcpy(iv, req->iv, 16); + skcipher_request_set_tfm(skreq, ctx->ctr); skcipher_request_set_callback(skreq, pctx->flags, crypto_ccm_decrypt_done, req); diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index 9c941947a063..3a3cb8624f41 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -440,9 +440,11 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, void *ignored) { acpi_status status; + acpi_event_status event_status; struct acpi_gpe_event_info *gpe_event_info; u32 gpe_enabled_count; u32 gpe_index; + u32 gpe_number; u32 i; u32 j; @@ -470,30 +472,40 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j; gpe_event_info = &gpe_block->event_info[gpe_index]; + gpe_number = gpe_block->block_base_number + gpe_index; /* * Ignore GPEs that have no corresponding _Lxx/_Exx method - * and GPEs that are used to wake the system + * and GPEs that are used for wakeup */ - if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == - ACPI_GPE_DISPATCH_NONE) - || (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == - ACPI_GPE_DISPATCH_HANDLER) - || (ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) == - ACPI_GPE_DISPATCH_RAW_HANDLER) + if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) != + ACPI_GPE_DISPATCH_METHOD) || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) { continue; } + event_status = 0; + (void)acpi_hw_get_gpe_status(gpe_event_info, + &event_status); + status = acpi_ev_add_gpe_reference(gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Could not enable GPE 0x%02X", - gpe_index + - gpe_block->block_base_number)); + gpe_number)); continue; } + gpe_event_info->flags |= ACPI_GPE_AUTO_ENABLED; + + if (event_status & ACPI_EVENT_FLAG_STATUS_SET) { + ACPI_INFO(("GPE 0x%02X active on init", + gpe_number)); + (void)acpi_ev_gpe_dispatch(gpe_block->node, + gpe_event_info, + gpe_number); + } + gpe_enabled_count++; } } diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index 57718a3e029a..67c7c4ce276c 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -435,6 +435,14 @@ acpi_setup_gpe_for_wake(acpi_handle wake_device, */ gpe_event_info->flags = (ACPI_GPE_DISPATCH_NOTIFY | ACPI_GPE_LEVEL_TRIGGERED); + } else if (gpe_event_info->flags & ACPI_GPE_AUTO_ENABLED) { + /* + * A reference to this GPE has been added during the GPE block + * initialization, so drop it now to prevent the GPE from being + * permanently enabled and clear its ACPI_GPE_AUTO_ENABLED flag. + */ + (void)acpi_ev_remove_gpe_reference(gpe_event_info); + gpe_event_info->flags &= ~ACPI_GPE_AUTO_ENABLED; } /* diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 70fd5502c284..b7bdf9d0f5c0 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2058,6 +2058,9 @@ int __init acpi_scan_init(void) acpi_get_spcr_uart_addr(); } + acpi_gpe_apply_masked_gpes(); + acpi_update_all_gpes(); + mutex_lock(&acpi_scan_lock); /* * Enumerate devices in the ACPI namespace. @@ -2082,9 +2085,6 @@ int __init acpi_scan_init(void) } } - acpi_gpe_apply_masked_gpes(); - acpi_update_all_gpes(); - acpi_scan_initialized = true; out: diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index fa8243c5c062..59b78e42a58b 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -160,6 +160,14 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d) return 0; } +static bool acpi_sleep_no_lps0; + +static int __init init_no_lps0(const struct dmi_system_id *d) +{ + acpi_sleep_no_lps0 = true; + return 0; +} + static struct dmi_system_id acpisleep_dmi_table[] __initdata = { { .callback = init_old_suspend_ordering, @@ -343,6 +351,19 @@ static struct dmi_system_id acpisleep_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "80E3"), }, }, + /* + * https://bugzilla.kernel.org/show_bug.cgi?id=196907 + * Some Dell XPS13 9360 cannot do suspend-to-idle using the Low Power + * S0 Idle firmware interface. + */ + { + .callback = init_no_lps0, + .ident = "Dell XPS13 9360", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), + }, + }, {}, }; @@ -485,6 +506,7 @@ static void acpi_pm_end(void) } #else /* !CONFIG_ACPI_SLEEP */ #define acpi_target_sleep_state ACPI_STATE_S0 +#define acpi_sleep_no_lps0 (false) static inline void acpi_sleep_dmi_check(void) {} #endif /* CONFIG_ACPI_SLEEP */ @@ -702,6 +724,12 @@ static int lps0_device_attach(struct acpi_device *adev, if (lps0_device_handle) return 0; + if (acpi_sleep_no_lps0) { + acpi_handle_info(adev->handle, + "Low Power S0 Idle interface disabled\n"); + return 0; + } + if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) return 0; diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index b008b6a98098..cf54a1cf8c55 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2692,7 +2692,7 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request) * from the parent. */ page_count = (u32)calc_pages_for(0, length); - pages = ceph_alloc_page_vector(page_count, GFP_KERNEL); + pages = ceph_alloc_page_vector(page_count, GFP_NOIO); if (IS_ERR(pages)) { result = PTR_ERR(pages); pages = NULL; @@ -2827,7 +2827,7 @@ static int rbd_img_obj_exists_submit(struct rbd_obj_request *obj_request) */ size = sizeof (__le64) + sizeof (__le32) + sizeof (__le32); page_count = (u32)calc_pages_for(0, size); - pages = ceph_alloc_page_vector(page_count, GFP_KERNEL); + pages = ceph_alloc_page_vector(page_count, GFP_NOIO); if (IS_ERR(pages)) { ret = PTR_ERR(pages); goto fail_stat_request; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 4436d53ae16c..f160a66b7098 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -722,7 +722,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) * allocation taken by fbdev */ if (!(dev_priv->capabilities & SVGA_CAP_3D)) - mem_size *= 2; + mem_size *= 3; dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE; dev_priv->prim_bb_mem = diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index a6b762271a40..47a9696e7874 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -1253,6 +1253,7 @@ static const struct acpi_device_id elan_acpi_id[] = { { "ELAN0605", 0 }, { "ELAN0609", 0 }, { "ELAN060B", 0 }, + { "ELAN060C", 0 }, { "ELAN0611", 0 }, { "ELAN1000", 0 }, { } diff --git a/drivers/net/can/c_can/c_can_pci.c b/drivers/net/can/c_can/c_can_pci.c index cf7c18947189..d065c0e2d18e 100644 --- a/drivers/net/can/c_can/c_can_pci.c +++ b/drivers/net/can/c_can/c_can_pci.c @@ -178,7 +178,6 @@ static int c_can_pci_probe(struct pci_dev *pdev, break; case BOSCH_D_CAN: priv->regs = reg_map_d_can; - priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES; break; default: ret = -EINVAL; diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c index e36d10520e24..717530eac70c 100644 --- a/drivers/net/can/c_can/c_can_platform.c +++ b/drivers/net/can/c_can/c_can_platform.c @@ -320,7 +320,6 @@ static int c_can_plat_probe(struct platform_device *pdev) break; case BOSCH_D_CAN: priv->regs = reg_map_d_can; - priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES; priv->read_reg = c_can_plat_read_reg_aligned_to_16bit; priv->write_reg = c_can_plat_write_reg_aligned_to_16bit; priv->read_reg32 = d_can_plat_read_reg32; diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index 4d1fe8d95042..2772d05ff11c 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -670,9 +670,9 @@ static void ifi_canfd_set_bittiming(struct net_device *ndev) priv->base + IFI_CANFD_FTIME); /* Configure transmitter delay */ - tdc = (dbt->brp * (dbt->phase_seg1 + 1)) & IFI_CANFD_TDELAY_MASK; - writel(IFI_CANFD_TDELAY_EN | IFI_CANFD_TDELAY_ABS | tdc, - priv->base + IFI_CANFD_TDELAY); + tdc = dbt->brp * (dbt->prop_seg + dbt->phase_seg1); + tdc &= IFI_CANFD_TDELAY_MASK; + writel(IFI_CANFD_TDELAY_EN | tdc, priv->base + IFI_CANFD_TDELAY); } static void ifi_canfd_set_filter(struct net_device *ndev, const u32 id, diff --git a/drivers/net/can/peak_canfd/peak_pciefd_main.c b/drivers/net/can/peak_canfd/peak_pciefd_main.c index 51c2d182a33a..b4efd711f824 100644 --- a/drivers/net/can/peak_canfd/peak_pciefd_main.c +++ b/drivers/net/can/peak_canfd/peak_pciefd_main.c @@ -29,14 +29,19 @@ #include "peak_canfd_user.h" MODULE_AUTHOR("Stephane Grosjean <s.grosjean(a)peak-system.com>"); -MODULE_DESCRIPTION("Socket-CAN driver for PEAK PCAN PCIe FD family cards"); -MODULE_SUPPORTED_DEVICE("PEAK PCAN PCIe FD CAN cards"); +MODULE_DESCRIPTION("Socket-CAN driver for PEAK PCAN PCIe/M.2 FD family cards"); +MODULE_SUPPORTED_DEVICE("PEAK PCAN PCIe/M.2 FD CAN cards"); MODULE_LICENSE("GPL v2"); #define PCIEFD_DRV_NAME "peak_pciefd" #define PEAK_PCI_VENDOR_ID 0x001c /* The PCI device and vendor IDs */ #define PEAK_PCIEFD_ID 0x0013 /* for PCIe slot cards */ +#define PCAN_CPCIEFD_ID 0x0014 /* for Compact-PCI Serial slot cards */ +#define PCAN_PCIE104FD_ID 0x0017 /* for PCIe-104 Express slot cards */ +#define PCAN_MINIPCIEFD_ID 0x0018 /* for mini-PCIe slot cards */ +#define PCAN_PCIEFD_OEM_ID 0x0019 /* for PCIe slot OEM cards */ +#define PCAN_M2_ID 0x001a /* for M2 slot cards */ /* PEAK PCIe board access description */ #define PCIEFD_BAR0_SIZE (64 * 1024) @@ -203,6 +208,11 @@ struct pciefd_board { /* supported device ids. */ static const struct pci_device_id peak_pciefd_tbl[] = { {PEAK_PCI_VENDOR_ID, PEAK_PCIEFD_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PCAN_CPCIEFD_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PCAN_PCIE104FD_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PCAN_MINIPCIEFD_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PCAN_PCIEFD_OEM_ID, PCI_ANY_ID, PCI_ANY_ID,}, + {PEAK_PCI_VENDOR_ID, PCAN_M2_ID, PCI_ANY_ID, PCI_ANY_ID,}, {0,} }; diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index b0c80859f746..1ac2090a1721 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -539,6 +539,13 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status) } stats->rx_over_errors++; stats->rx_errors++; + + /* reset the CAN IP by entering reset mode + * ignoring timeout error + */ + set_reset_mode(dev); + set_normal_mode(dev); + /* clear bit */ sun4i_can_write_cmdreg(priv, SUN4I_CMD_CLEAR_OR_FLAG); } @@ -653,8 +660,9 @@ static irqreturn_t sun4i_can_interrupt(int irq, void *dev_id) netif_wake_queue(dev); can_led_event(dev, CAN_LED_EVENT_TX); } - if (isrc & SUN4I_INT_RBUF_VLD) { - /* receive interrupt */ + if ((isrc & SUN4I_INT_RBUF_VLD) && + !(isrc & SUN4I_INT_DATA_OR)) { + /* receive interrupt - don't read if overrun occurred */ while (status & SUN4I_STA_RBUF_RDY) { /* RX buffer is not empty */ sun4i_can_rx(dev); diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 2fcbaec8b368..71eddf645566 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -775,7 +775,7 @@ typedef u32 acpi_event_status; * | | | | +-- Type of dispatch:to method, handler, notify, or none * | | | +----- Interrupt type: edge or level triggered * | | +------- Is a Wake GPE - * | +--------- Is GPE masked by the software GPE masking mechanism + * | +--------- Has been enabled automatically at init time * +------------ <Reserved> */ #define ACPI_GPE_DISPATCH_NONE (u8) 0x00 @@ -791,6 +791,7 @@ typedef u32 acpi_event_status; #define ACPI_GPE_XRUPT_TYPE_MASK (u8) 0x08 #define ACPI_GPE_CAN_WAKE (u8) 0x10 +#define ACPI_GPE_AUTO_ENABLED (u8) 0x20 /* * Flags for GPE and Lock interfaces diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index 48407569585d..a7c2cee39570 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -17,7 +17,6 @@ #include <linux/bitops.h> #include <linux/compiler.h> #include <linux/atomic.h> -#include <linux/rhashtable.h> #include <linux/netfilter/nf_conntrack_tcp.h> #include <linux/netfilter/nf_conntrack_dccp.h> @@ -83,7 +82,7 @@ struct nf_conn { possible_net_t ct_net; #if IS_ENABLED(CONFIG_NF_NAT) - struct rhlist_head nat_bysource; + struct hlist_node nat_bysource; #endif /* all members below initialized via memset */ u8 __nfct_init_offset[0]; diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h index 05c82a1a4267..b71701302e61 100644 --- a/include/net/netfilter/nf_nat.h +++ b/include/net/netfilter/nf_nat.h @@ -1,6 +1,5 @@ #ifndef _NF_NAT_H #define _NF_NAT_H -#include <linux/rhashtable.h> #include <linux/netfilter_ipv4.h> #include <linux/netfilter/nf_nat.h> #include <net/netfilter/nf_conntrack_tuple.h> diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h index feb58d455560..4b9ee3009aa0 100644 --- a/include/sound/seq_kernel.h +++ b/include/sound/seq_kernel.h @@ -49,7 +49,8 @@ typedef union snd_seq_timestamp snd_seq_timestamp_t; #define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200 /* max delivery path length */ -#define SNDRV_SEQ_MAX_HOPS 10 +/* NOTE: this shouldn't be greater than MAX_LOCKDEP_SUBCLASSES */ +#define SNDRV_SEQ_MAX_HOPS 8 /* max size of event size */ #define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff diff --git a/include/sound/timer.h b/include/sound/timer.h index c4d76ff056c6..7ae226ab6990 100644 --- a/include/sound/timer.h +++ b/include/sound/timer.h @@ -90,6 +90,8 @@ struct snd_timer { struct list_head ack_list_head; struct list_head sack_list_head; /* slow ack list head */ struct tasklet_struct task_queue; + int max_instances; /* upper limit of timer instances */ + int num_instances; /* current number of timer instances */ }; struct snd_timer_instance { diff --git a/kernel/workqueue_internal.h b/kernel/workqueue_internal.h index 8635417c587b..29fa81f0f51a 100644 --- a/kernel/workqueue_internal.h +++ b/kernel/workqueue_internal.h @@ -9,6 +9,7 @@ #include <linux/workqueue.h> #include <linux/kthread.h> +#include <linux/preempt.h> struct worker_pool; @@ -59,7 +60,7 @@ struct worker { */ static inline struct worker *current_wq_worker(void) { - if (current->flags & PF_WQ_WORKER) + if (in_task() && (current->flags & PF_WQ_WORKER)) return kthread_data(current); return NULL; } diff --git a/lib/asn1_decoder.c b/lib/asn1_decoder.c index fef5d2e114be..1ef0cec38d78 100644 --- a/lib/asn1_decoder.c +++ b/lib/asn1_decoder.c @@ -228,7 +228,7 @@ int asn1_ber_decoder(const struct asn1_decoder *decoder, hdr = 2; /* Extract a tag from the data */ - if (unlikely(dp >= datalen - 1)) + if (unlikely(datalen - dp < 2)) goto data_overrun_error; tag = data[dp++]; if (unlikely((tag & 0x1f) == ASN1_LONG_TAG)) @@ -274,7 +274,7 @@ int asn1_ber_decoder(const struct asn1_decoder *decoder, int n = len - 0x80; if (unlikely(n > 2)) goto length_too_long; - if (unlikely(dp >= datalen - n)) + if (unlikely(n > datalen - dp)) goto data_overrun_error; hdr += n; for (len = 0; n > 0; n--) { diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c index b1d3740ae36a..2fb80a4bfb34 100644 --- a/net/netfilter/nf_nat_core.c +++ b/net/netfilter/nf_nat_core.c @@ -30,19 +30,17 @@ #include <net/netfilter/nf_conntrack_zones.h> #include <linux/netfilter/nf_nat.h> +static DEFINE_SPINLOCK(nf_nat_lock); + static DEFINE_MUTEX(nf_nat_proto_mutex); static const struct nf_nat_l3proto __rcu *nf_nat_l3protos[NFPROTO_NUMPROTO] __read_mostly; static const struct nf_nat_l4proto __rcu **nf_nat_l4protos[NFPROTO_NUMPROTO] __read_mostly; -struct nf_nat_conn_key { - const struct net *net; - const struct nf_conntrack_tuple *tuple; - const struct nf_conntrack_zone *zone; -}; - -static struct rhltable nf_nat_bysource_table; +static struct hlist_head *nf_nat_bysource __read_mostly; +static unsigned int nf_nat_htable_size __read_mostly; +static unsigned int nf_nat_hash_rnd __read_mostly; inline const struct nf_nat_l3proto * __nf_nat_l3proto_find(u8 family) @@ -118,17 +116,19 @@ int nf_xfrm_me_harder(struct net *net, struct sk_buff *skb, unsigned int family) EXPORT_SYMBOL(nf_xfrm_me_harder); #endif /* CONFIG_XFRM */ -static u32 nf_nat_bysource_hash(const void *data, u32 len, u32 seed) +/* We keep an extra hash for each conntrack, for fast searching. */ +static unsigned int +hash_by_src(const struct net *n, const struct nf_conntrack_tuple *tuple) { - const struct nf_conntrack_tuple *t; - const struct nf_conn *ct = data; + unsigned int hash; + + get_random_once(&nf_nat_hash_rnd, sizeof(nf_nat_hash_rnd)); - t = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple; /* Original src, to ensure we map it consistently if poss. */ + hash = jhash2((u32 *)&tuple->src, sizeof(tuple->src) / sizeof(u32), + tuple->dst.protonum ^ nf_nat_hash_rnd ^ net_hash_mix(n)); - seed ^= net_hash_mix(nf_ct_net(ct)); - return jhash2((const u32 *)&t->src, sizeof(t->src) / sizeof(u32), - t->dst.protonum ^ seed); + return reciprocal_scale(hash, nf_nat_htable_size); } /* Is this tuple already taken? (not by us) */ @@ -184,28 +184,6 @@ same_src(const struct nf_conn *ct, t->src.u.all == tuple->src.u.all); } -static int nf_nat_bysource_cmp(struct rhashtable_compare_arg *arg, - const void *obj) -{ - const struct nf_nat_conn_key *key = arg->key; - const struct nf_conn *ct = obj; - - if (!same_src(ct, key->tuple) || - !net_eq(nf_ct_net(ct), key->net) || - !nf_ct_zone_equal(ct, key->zone, IP_CT_DIR_ORIGINAL)) - return 1; - - return 0; -} - -static struct rhashtable_params nf_nat_bysource_params = { - .head_offset = offsetof(struct nf_conn, nat_bysource), - .obj_hashfn = nf_nat_bysource_hash, - .obj_cmpfn = nf_nat_bysource_cmp, - .nelem_hint = 256, - .min_size = 1024, -}; - /* Only called for SRC manip */ static int find_appropriate_src(struct net *net, @@ -216,26 +194,22 @@ find_appropriate_src(struct net *net, struct nf_conntrack_tuple *result, const struct nf_nat_range *range) { + unsigned int h = hash_by_src(net, tuple); const struct nf_conn *ct; - struct nf_nat_conn_key key = { - .net = net, - .tuple = tuple, - .zone = zone - }; - struct rhlist_head *hl, *h; - - hl = rhltable_lookup(&nf_nat_bysource_table, &key, - nf_nat_bysource_params); - rhl_for_each_entry_rcu(ct, h, hl, nat_bysource) { - nf_ct_invert_tuplepr(result, - &ct->tuplehash[IP_CT_DIR_REPLY].tuple); - result->dst = tuple->dst; - - if (in_range(l3proto, l4proto, result, range)) - return 1; + hlist_for_each_entry_rcu(ct, &nf_nat_bysource[h], nat_bysource) { + if (same_src(ct, tuple) && + net_eq(net, nf_ct_net(ct)) && + nf_ct_zone_equal(ct, zone, IP_CT_DIR_ORIGINAL)) { + /* Copy source part from reply tuple. */ + nf_ct_invert_tuplepr(result, + &ct->tuplehash[IP_CT_DIR_REPLY].tuple); + result->dst = tuple->dst; + + if (in_range(l3proto, l4proto, result, range)) + return 1; + } } - return 0; } @@ -408,6 +382,7 @@ nf_nat_setup_info(struct nf_conn *ct, const struct nf_nat_range *range, enum nf_nat_manip_type maniptype) { + struct net *net = nf_ct_net(ct); struct nf_conntrack_tuple curr_tuple, new_tuple; /* Can't setup nat info for confirmed ct. */ @@ -447,19 +422,14 @@ nf_nat_setup_info(struct nf_conn *ct, } if (maniptype == NF_NAT_MANIP_SRC) { - struct nf_nat_conn_key key = { - .net = nf_ct_net(ct), - .tuple = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple, - .zone = nf_ct_zone(ct), - }; - int err; - - err = rhltable_insert_key(&nf_nat_bysource_table, - &key, - &ct->nat_bysource, - nf_nat_bysource_params); - if (err) - return NF_DROP; + unsigned int srchash; + + srchash = hash_by_src(net, + &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple); + spin_lock_bh(&nf_nat_lock); + hlist_add_head_rcu(&ct->nat_bysource, + &nf_nat_bysource[srchash]); + spin_unlock_bh(&nf_nat_lock); } /* It's done. */ @@ -568,8 +538,9 @@ static int nf_nat_proto_clean(struct nf_conn *ct, void *data) * will delete entry from already-freed table. */ clear_bit(IPS_SRC_NAT_DONE_BIT, &ct->status); - rhltable_remove(&nf_nat_bysource_table, &ct->nat_bysource, - nf_nat_bysource_params); + spin_lock_bh(&nf_nat_lock); + hlist_del_rcu(&ct->nat_bysource); + spin_unlock_bh(&nf_nat_lock); /* don't delete conntrack. Although that would make things a lot * simpler, we'd end up flushing all conntracks on nat rmmod. @@ -697,9 +668,11 @@ EXPORT_SYMBOL_GPL(nf_nat_l3proto_unregister); /* No one using conntrack by the time this called. */ static void nf_nat_cleanup_conntrack(struct nf_conn *ct) { - if (ct->status & IPS_SRC_NAT_DONE) - rhltable_remove(&nf_nat_bysource_table, &ct->nat_bysource, - nf_nat_bysource_params); + if (ct->status & IPS_SRC_NAT_DONE) { + spin_lock_bh(&nf_nat_lock); + hlist_del_rcu(&ct->nat_bysource); + spin_unlock_bh(&nf_nat_lock); + } } static struct nf_ct_ext_type nat_extend __read_mostly = { @@ -823,13 +796,16 @@ static int __init nf_nat_init(void) { int ret; - ret = rhltable_init(&nf_nat_bysource_table, &nf_nat_bysource_params); - if (ret) - return ret; + /* Leave them the same for the moment. */ + nf_nat_htable_size = nf_conntrack_htable_size; + + nf_nat_bysource = nf_ct_alloc_hashtable(&nf_nat_htable_size, 0); + if (!nf_nat_bysource) + return -ENOMEM; ret = nf_ct_extend_register(&nat_extend); if (ret < 0) { - rhltable_destroy(&nf_nat_bysource_table); + nf_ct_free_hashtable(nf_nat_bysource, nf_nat_htable_size); printk(KERN_ERR "nf_nat_core: Unable to register extension\n"); return ret; } @@ -863,8 +839,8 @@ static void __exit nf_nat_cleanup(void) for (i = 0; i < NFPROTO_NUMPROTO; i++) kfree(nf_nat_l4protos[i]); - - rhltable_destroy(&nf_nat_bysource_table); + synchronize_net(); + nf_ct_free_hashtable(nf_nat_bysource, nf_nat_htable_size); } MODULE_LICENSE("GPL"); diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c index 0fa01d772c5e..9c0d5a7ce5f9 100644 --- a/net/netfilter/nft_set_hash.c +++ b/net/netfilter/nft_set_hash.c @@ -643,7 +643,6 @@ nft_hash_select_ops(const struct nft_ctx *ctx, const struct nft_set_desc *desc, { if (desc->size) { switch (desc->klen) { - case 2: case 4: return &nft_hash_fast_ops; default: diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c index 1ac0c423903e..6e47b823bcaa 100644 --- a/sound/core/hrtimer.c +++ b/sound/core/hrtimer.c @@ -159,6 +159,7 @@ static int __init snd_hrtimer_init(void) timer->hw = hrtimer_hw; timer->hw.resolution = resolution; timer->hw.ticks = NANO_SEC / resolution; + timer->max_instances = 100; /* lower the limit */ err = snd_timer_global_register(timer); if (err < 0) { diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c index aaff9ee32695..b30b2139e3f0 100644 --- a/sound/core/seq/oss/seq_oss_midi.c +++ b/sound/core/seq/oss/seq_oss_midi.c @@ -612,9 +612,7 @@ send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq if (!dp->timer->running) len = snd_seq_oss_timer_start(dp->timer); if (ev->type == SNDRV_SEQ_EVENT_SYSEX) { - if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE) - snd_seq_oss_readq_puts(dp->readq, mdev->seq_device, - ev->data.ext.ptr, ev->data.ext.len); + snd_seq_oss_readq_sysex(dp->readq, mdev->seq_device, ev); } else { len = snd_midi_event_decode(mdev->coder, msg, sizeof(msg), ev); if (len > 0) diff --git a/sound/core/seq/oss/seq_oss_readq.c b/sound/core/seq/oss/seq_oss_readq.c index 046cb586fb2f..06b21226b4e7 100644 --- a/sound/core/seq/oss/seq_oss_readq.c +++ b/sound/core/seq/oss/seq_oss_readq.c @@ -117,6 +117,35 @@ snd_seq_oss_readq_puts(struct seq_oss_readq *q, int dev, unsigned char *data, in return 0; } +/* + * put MIDI sysex bytes; the event buffer may be chained, thus it has + * to be expanded via snd_seq_dump_var_event(). + */ +struct readq_sysex_ctx { + struct seq_oss_readq *readq; + int dev; +}; + +static int readq_dump_sysex(void *ptr, void *buf, int count) +{ + struct readq_sysex_ctx *ctx = ptr; + + return snd_seq_oss_readq_puts(ctx->readq, ctx->dev, buf, count); +} + +int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev, + struct snd_seq_event *ev) +{ + struct readq_sysex_ctx ctx = { + .readq = q, + .dev = dev + }; + + if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) != SNDRV_SEQ_EVENT_LENGTH_VARIABLE) + return 0; + return snd_seq_dump_var_event(ev, readq_dump_sysex, &ctx); +} + /* * copy an event to input queue: * return zero if enqueued diff --git a/sound/core/seq/oss/seq_oss_readq.h b/sound/core/seq/oss/seq_oss_readq.h index f1463f1f449e..8d033ca2d23f 100644 --- a/sound/core/seq/oss/seq_oss_readq.h +++ b/sound/core/seq/oss/seq_oss_readq.h @@ -44,6 +44,8 @@ void snd_seq_oss_readq_delete(struct seq_oss_readq *q); void snd_seq_oss_readq_clear(struct seq_oss_readq *readq); unsigned int snd_seq_oss_readq_poll(struct seq_oss_readq *readq, struct file *file, poll_table *wait); int snd_seq_oss_readq_puts(struct seq_oss_readq *readq, int dev, unsigned char *data, int len); +int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev, + struct snd_seq_event *ev); int snd_seq_oss_readq_put_event(struct seq_oss_readq *readq, union evrec *ev); int snd_seq_oss_readq_put_timestamp(struct seq_oss_readq *readq, unsigned long curt, int seq_mode); int snd_seq_oss_readq_pick(struct seq_oss_readq *q, union evrec *rec); diff --git a/sound/core/timer.c b/sound/core/timer.c index a9b9a277e00c..c8e4d0da13b4 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -180,7 +180,7 @@ static void snd_timer_request(struct snd_timer_id *tid) * * call this with register_mutex down. */ -static void snd_timer_check_slave(struct snd_timer_instance *slave) +static int snd_timer_check_slave(struct snd_timer_instance *slave) { struct snd_timer *timer; struct snd_timer_instance *master; @@ -190,16 +190,21 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave) list_for_each_entry(master, &timer->open_list_head, open_list) { if (slave->slave_class == master->slave_class && slave->slave_id == master->slave_id) { + if (master->timer->num_instances >= + master->timer->max_instances) + return -EBUSY; list_move_tail(&slave->open_list, &master->slave_list_head); + master->timer->num_instances++; spin_lock_irq(&slave_active_lock); slave->master = master; slave->timer = master->timer; spin_unlock_irq(&slave_active_lock); - return; + return 0; } } } + return 0; } /* @@ -208,7 +213,7 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave) * * call this with register_mutex down. */ -static void snd_timer_check_master(struct snd_timer_instance *master) +static int snd_timer_check_master(struct snd_timer_instance *master) { struct snd_timer_instance *slave, *tmp; @@ -216,7 +221,11 @@ static void snd_timer_check_master(struct snd_timer_instance *master) list_for_each_entry_safe(slave, tmp, &snd_timer_slave_list, open_list) { if (slave->slave_class == master->slave_class && slave->slave_id == master->slave_id) { + if (master->timer->num_instances >= + master->timer->max_instances) + return -EBUSY; list_move_tail(&slave->open_list, &master->slave_list_head); + master->timer->num_instances++; spin_lock_irq(&slave_active_lock); spin_lock(&master->timer->lock); slave->master = master; @@ -228,8 +237,11 @@ static void snd_timer_check_master(struct snd_timer_instance *master) spin_unlock_irq(&slave_active_lock); } } + return 0; } +static int snd_timer_close_locked(struct snd_timer_instance *timeri); + /* * open a timer instance * when opening a master, the slave id must be here given. @@ -240,6 +252,7 @@ int snd_timer_open(struct snd_timer_instance **ti, { struct snd_timer *timer; struct snd_timer_instance *timeri = NULL; + int err; if (tid->dev_class == SNDRV_TIMER_CLASS_SLAVE) { /* open a slave instance */ @@ -259,10 +272,14 @@ int snd_timer_open(struct snd_timer_instance **ti, timeri->slave_id = tid->device; timeri->flags |= SNDRV_TIMER_IFLG_SLAVE; list_add_tail(&timeri->open_list, &snd_timer_slave_list); - snd_timer_check_slave(timeri); + err = snd_timer_check_slave(timeri); + if (err < 0) { + snd_timer_close_locked(timeri); + timeri = NULL; + } mutex_unlock(&register_mutex); *ti = timeri; - return 0; + return err; } /* open a master instance */ @@ -288,6 +305,10 @@ int snd_timer_open(struct snd_timer_instance **ti, return -EBUSY; } } + if (timer->num_instances >= timer->max_instances) { + mutex_unlock(&register_mutex); + return -EBUSY; + } timeri = snd_timer_instance_new(owner, timer); if (!timeri) { mutex_unlock(&register_mutex); @@ -314,25 +335,27 @@ int snd_timer_open(struct snd_timer_instance **ti, } list_add_tail(&timeri->open_list, &timer->open_list_head); - snd_timer_check_master(timeri); + timer->num_instances++; + err = snd_timer_check_master(timeri); + if (err < 0) { + snd_timer_close_locked(timeri); + timeri = NULL; + } mutex_unlock(&register_mutex); *ti = timeri; - return 0; + return err; } EXPORT_SYMBOL(snd_timer_open); /* * close a timer instance + * call this with register_mutex down. */ -int snd_timer_close(struct snd_timer_instance *timeri) +static int snd_timer_close_locked(struct snd_timer_instance *timeri) { struct snd_timer *timer = NULL; struct snd_timer_instance *slave, *tmp; - if (snd_BUG_ON(!timeri)) - return -ENXIO; - - mutex_lock(&register_mutex); list_del(&timeri->open_list); /* force to stop the timer */ @@ -340,6 +363,7 @@ int snd_timer_close(struct snd_timer_instance *timeri) timer = timeri->timer; if (timer) { + timer->num_instances--; /* wait, until the active callback is finished */ spin_lock_irq(&timer->lock); while (timeri->flags & SNDRV_TIMER_IFLG_CALLBACK) { @@ -355,6 +379,7 @@ int snd_timer_close(struct snd_timer_instance *timeri) list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head, open_list) { list_move_tail(&slave->open_list, &snd_timer_slave_list); + timer->num_instances--; slave->master = NULL; slave->timer = NULL; list_del_init(&slave->ack_list); @@ -382,9 +407,24 @@ int snd_timer_close(struct snd_timer_instance *timeri) module_put(timer->module); } - mutex_unlock(&register_mutex); return 0; } + +/* + * close a timer instance + */ +int snd_timer_close(struct snd_timer_instance *timeri) +{ + int err; + + if (snd_BUG_ON(!timeri)) + return -ENXIO; + + mutex_lock(&register_mutex); + err = snd_timer_close_locked(timeri); + mutex_unlock(&register_mutex); + return err; +} EXPORT_SYMBOL(snd_timer_close); unsigned long snd_timer_resolution(struct snd_timer_instance *timeri) @@ -855,6 +895,7 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid, spin_lock_init(&timer->lock); tasklet_init(&timer->task_queue, snd_timer_tasklet, (unsigned long)timer); + timer->max_instances = 1000; /* default limit per timer */ if (card != NULL) { timer->module = card->module; err = snd_device_new(card, SNDRV_DEV_TIMER, timer, &ops); diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index fe4d06398fc3..c5f0e8d42d22 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6527,6 +6527,11 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = { {0x14, 0x90170110}, {0x1b, 0x90a70130}, {0x21, 0x03211020}), + SND_HDA_PIN_QUIRK(0x10ec0274, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0xb7a60130}, + {0x13, 0xb8a61140}, + {0x16, 0x90170110}, + {0x21, 0x04211020}), SND_HDA_PIN_QUIRK(0x10ec0280, 0x103c, "HP", ALC280_FIXUP_HP_GPIO4, {0x12, 0x90a60130}, {0x14, 0x90170110}, diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 0e54fe490458..f910c4fd932b 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1373,6 +1373,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip, case 0x199: return SNDRV_PCM_FMTBIT_DSD_U32_LE; case 0x19b: + case 0x203: return SNDRV_PCM_FMTBIT_DSD_U32_BE; default: break;

7 years, 7 months

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Re: [Linux-stable-mirror] Linux 3.18.81

by Greg KH

diff --git a/Documentation/devicetree/bindings/arm/davinci.txt b/Documentation/devicetree/bindings/arm/davinci.txt index cfaeda4274e6..e6f4b50da1f9 100644 --- a/Documentation/devicetree/bindings/arm/davinci.txt +++ b/Documentation/devicetree/bindings/arm/davinci.txt @@ -9,6 +9,10 @@ EnBW AM1808 based CMC board Required root node properties: - compatible = "enbw,cmc", "ti,da850; +LEGO MINDSTORMS EV3 (AM1808 based) +Required root node properties: + - compatible = "lego,ev3", "ti,da850"; + Generic DaVinci Boards ---------------------- diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index a344ec2713a5..356ffd64fc9e 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -83,6 +83,7 @@ karo Ka-Ro electronics GmbH keymile Keymile GmbH lacie LaCie lantiq Lantiq Semiconductor +lego LEGO Systems A/S lenovo Lenovo Group Ltd. lg LG Corporation linux Linux-specific binding diff --git a/Makefile b/Makefile index 8feea3dadc60..5e66a3704705 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 3 PATCHLEVEL = 18 -SUBLEVEL = 80 +SUBLEVEL = 81 EXTRAVERSION = NAME = Diseased Newt diff --git a/arch/arm/boot/dts/imx53-qsb-common.dtsi b/arch/arm/boot/dts/imx53-qsb-common.dtsi index 1f55187ed9ce..53e81589368a 100644 --- a/arch/arm/boot/dts/imx53-qsb-common.dtsi +++ b/arch/arm/boot/dts/imx53-qsb-common.dtsi @@ -215,16 +215,16 @@ pinctrl_fec: fecgrp { fsl,pins = < - MX53_PAD_FEC_MDC__FEC_MDC 0x80000000 - MX53_PAD_FEC_MDIO__FEC_MDIO 0x80000000 - MX53_PAD_FEC_REF_CLK__FEC_TX_CLK 0x80000000 - MX53_PAD_FEC_RX_ER__FEC_RX_ER 0x80000000 - MX53_PAD_FEC_CRS_DV__FEC_RX_DV 0x80000000 - MX53_PAD_FEC_RXD1__FEC_RDATA_1 0x80000000 - MX53_PAD_FEC_RXD0__FEC_RDATA_0 0x80000000 - MX53_PAD_FEC_TX_EN__FEC_TX_EN 0x80000000 - MX53_PAD_FEC_TXD1__FEC_TDATA_1 0x80000000 - MX53_PAD_FEC_TXD0__FEC_TDATA_0 0x80000000 + MX53_PAD_FEC_MDC__FEC_MDC 0x4 + MX53_PAD_FEC_MDIO__FEC_MDIO 0x1fc + MX53_PAD_FEC_REF_CLK__FEC_TX_CLK 0x180 + MX53_PAD_FEC_RX_ER__FEC_RX_ER 0x180 + MX53_PAD_FEC_CRS_DV__FEC_RX_DV 0x180 + MX53_PAD_FEC_RXD1__FEC_RDATA_1 0x180 + MX53_PAD_FEC_RXD0__FEC_RDATA_0 0x180 + MX53_PAD_FEC_TX_EN__FEC_TX_EN 0x4 + MX53_PAD_FEC_TXD1__FEC_TDATA_1 0x4 + MX53_PAD_FEC_TXD0__FEC_TDATA_0 0x4 >; }; diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index a0e51bb68b2d..85128b297ec1 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -169,6 +169,7 @@ CONFIG_INPUT_TWL4030_PWRBUTTON=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_NR_UARTS=32 +CONFIG_SERIAL_8250_RUNTIME_UARTS=6 CONFIG_SERIAL_8250_EXTENDED=y CONFIG_SERIAL_8250_MANY_PORTS=y CONFIG_SERIAL_8250_SHARE_IRQ=y diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 9f5d81881eb6..8db4c231a285 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -132,30 +132,26 @@ static void dump_mem(const char *lvl, const char *str, unsigned long bottom, set_fs(fs); } -static void dump_instr(const char *lvl, struct pt_regs *regs) +static void __dump_instr(const char *lvl, struct pt_regs *regs) { unsigned long addr = instruction_pointer(regs); const int thumb = thumb_mode(regs); const int width = thumb ? 4 : 8; - mm_segment_t fs; char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str; int i; /* - * We need to switch to kernel mode so that we can use __get_user - * to safely read from kernel space. Note that we now dump the - * code first, just in case the backtrace kills us. + * Note that we now dump the code first, just in case the backtrace + * kills us. */ - fs = get_fs(); - set_fs(KERNEL_DS); for (i = -4; i < 1 + !!thumb; i++) { unsigned int val, bad; if (thumb) - bad = __get_user(val, &((u16 *)addr)[i]); + bad = get_user(val, &((u16 *)addr)[i]); else - bad = __get_user(val, &((u32 *)addr)[i]); + bad = get_user(val, &((u32 *)addr)[i]); if (!bad) p += sprintf(p, i == 0 ? "(%0*x) " : "%0*x ", @@ -166,8 +162,20 @@ static void dump_instr(const char *lvl, struct pt_regs *regs) } } printk("%sCode: %s\n", lvl, str); +} - set_fs(fs); +static void dump_instr(const char *lvl, struct pt_regs *regs) +{ + mm_segment_t fs; + + if (!user_mode(regs)) { + fs = get_fs(); + set_fs(KERNEL_DS); + __dump_instr(lvl, regs); + set_fs(fs); + } else { + __dump_instr(lvl, regs); + } } #ifdef CONFIG_ARM_UNWIND diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c index 7e2356fd5fd6..e4f47d3e55bb 100644 --- a/arch/mips/ar7/platform.c +++ b/arch/mips/ar7/platform.c @@ -581,6 +581,7 @@ static int __init ar7_register_uarts(void) uart_port.type = PORT_AR7; uart_port.uartclk = clk_get_rate(bus_clk) / 2; uart_port.iotype = UPIO_MEM32; + uart_port.flags = UPF_FIXED_TYPE; uart_port.regshift = 2; uart_port.line = 0; diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h index 6a9d2dd005ca..79c882be9d17 100644 --- a/arch/mips/include/asm/mips-cm.h +++ b/arch/mips/include/asm/mips-cm.h @@ -173,8 +173,8 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80) #define CM_GCR_BASE_GCRBASE_MSK (_ULCAST_(0x1ffff) << 15) #define CM_GCR_BASE_CMDEFTGT_SHF 0 #define CM_GCR_BASE_CMDEFTGT_MSK (_ULCAST_(0x3) << 0) -#define CM_GCR_BASE_CMDEFTGT_DISABLED 0 -#define CM_GCR_BASE_CMDEFTGT_MEM 1 +#define CM_GCR_BASE_CMDEFTGT_MEM 0 +#define CM_GCR_BASE_CMDEFTGT_RESERVED 1 #define CM_GCR_BASE_CMDEFTGT_IOCU0 2 #define CM_GCR_BASE_CMDEFTGT_IOCU1 3 diff --git a/arch/mips/mm/uasm-micromips.c b/arch/mips/mm/uasm-micromips.c index 8399ddf03a02..cab124e0572d 100644 --- a/arch/mips/mm/uasm-micromips.c +++ b/arch/mips/mm/uasm-micromips.c @@ -83,7 +83,7 @@ static struct insn insn_table_MM[] = { { insn_jr, M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RS }, { insn_lb, M(mm_lb32_op, 0, 0, 0, 0, 0), RT | RS | SIMM }, { insn_ld, 0, 0 }, - { insn_lh, M(mm_lh32_op, 0, 0, 0, 0, 0), RS | RS | SIMM }, + { insn_lh, M(mm_lh32_op, 0, 0, 0, 0, 0), RT | RS | SIMM }, { insn_ll, M(mm_pool32c_op, 0, 0, (mm_ll_func << 1), 0, 0), RS | RT | SIMM }, { insn_lld, 0, 0 }, { insn_lui, M(mm_pool32i_op, mm_lui_op, 0, 0, 0, 0), RS | SIMM }, diff --git a/arch/sh/kernel/cpu/sh3/setup-sh770x.c b/arch/sh/kernel/cpu/sh3/setup-sh770x.c index 538c10db3537..8dc315b212c2 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh770x.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh770x.c @@ -165,7 +165,6 @@ static struct plat_sci_port scif2_platform_data = { .scscr = SCSCR_TE | SCSCR_RE, .type = PORT_IRDA, .ops = &sh770x_sci_port_ops, - .regshift = 1, }; static struct resource scif2_resources[] = { diff --git a/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S index 85c4e1cf7172..e1693457c178 100644 --- a/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S +++ b/arch/x86/crypto/sha-mb/sha1_mb_mgr_flush_avx2.S @@ -174,8 +174,8 @@ LABEL skip_ %I .endr # Find min length - vmovdqa _lens+0*16(state), %xmm0 - vmovdqa _lens+1*16(state), %xmm1 + vmovdqu _lens+0*16(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} @@ -195,8 +195,8 @@ LABEL skip_ %I vpsubd %xmm2, %xmm0, %xmm0 vpsubd %xmm2, %xmm1, %xmm1 - vmovdqa %xmm0, _lens+0*16(state) - vmovdqa %xmm1, _lens+1*16(state) + vmovdqu %xmm0, _lens+0*16(state) + vmovdqu %xmm1, _lens+1*16(state) # "state" and "args" are the same address, arg1 # len is arg2 @@ -260,8 +260,8 @@ ENTRY(sha1_mb_mgr_get_comp_job_avx2) jc .return_null # Find min length - vmovdqa _lens(state), %xmm0 - vmovdqa _lens+1*16(state), %xmm1 + vmovdqu _lens(state), %xmm0 + vmovdqu _lens+1*16(state), %xmm1 vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A} vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C} diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c index d90528ea5412..12c051d19e4b 100644 --- a/arch/x86/oprofile/op_model_ppro.c +++ b/arch/x86/oprofile/op_model_ppro.c @@ -212,8 +212,8 @@ static void arch_perfmon_setup_counters(void) eax.full = cpuid_eax(0xa); /* Workaround for BIOS bugs in 6/15. Taken from perfmon2 */ - if (eax.split.version_id == 0 && __this_cpu_read(cpu_info.x86) == 6 && - __this_cpu_read(cpu_info.x86_model) == 15) { + if (eax.split.version_id == 0 && boot_cpu_data.x86 == 6 && + boot_cpu_data.x86_model == 15) { eax.split.version_id = 2; eax.split.num_counters = 2; eax.split.bit_width = 40; diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 2f7358726737..9e97f3415b36 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2700,7 +2700,7 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request) * from the parent. */ page_count = (u32)calc_pages_for(0, length); - pages = ceph_alloc_page_vector(page_count, GFP_KERNEL); + pages = ceph_alloc_page_vector(page_count, GFP_NOIO); if (IS_ERR(pages)) { result = PTR_ERR(pages); pages = NULL; @@ -2827,7 +2827,7 @@ static int rbd_img_obj_exists_submit(struct rbd_obj_request *obj_request) */ size = sizeof (__le64) + sizeof (__le32) + sizeof (__le32); page_count = (u32)calc_pages_for(0, size); - pages = ceph_alloc_page_vector(page_count, GFP_KERNEL); + pages = ceph_alloc_page_vector(page_count, GFP_NOIO); if (IS_ERR(pages)) return PTR_ERR(pages); diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index bc3da32d4585..72a71fa72653 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -320,7 +320,7 @@ static int drm_minor_register(struct drm_device *dev, unsigned int type) ret = drm_debugfs_init(minor, minor->index, drm_debugfs_root); if (ret) { DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n"); - return ret; + goto err_debugfs; } ret = device_add(minor->kdev); diff --git a/drivers/iio/trigger/iio-trig-interrupt.c b/drivers/iio/trigger/iio-trig-interrupt.c index 572bc6f02ca8..e18f12b74610 100644 --- a/drivers/iio/trigger/iio-trig-interrupt.c +++ b/drivers/iio/trigger/iio-trig-interrupt.c @@ -58,7 +58,7 @@ static int iio_interrupt_trigger_probe(struct platform_device *pdev) trig_info = kzalloc(sizeof(*trig_info), GFP_KERNEL); if (!trig_info) { ret = -ENOMEM; - goto error_put_trigger; + goto error_free_trigger; } iio_trigger_set_drvdata(trig, trig_info); trig_info->irq = irq; @@ -83,8 +83,8 @@ error_release_irq: free_irq(irq, trig); error_free_trig_info: kfree(trig_info); -error_put_trigger: - iio_trigger_put(trig); +error_free_trigger: + iio_trigger_free(trig); error_ret: return ret; } @@ -99,7 +99,7 @@ static int iio_interrupt_trigger_remove(struct platform_device *pdev) iio_trigger_unregister(trig); free_irq(trig_info->irq, trig); kfree(trig_info); - iio_trigger_put(trig); + iio_trigger_free(trig); return 0; } diff --git a/drivers/iio/trigger/iio-trig-sysfs.c b/drivers/iio/trigger/iio-trig-sysfs.c index 254c7e906127..61ffbec048a7 100644 --- a/drivers/iio/trigger/iio-trig-sysfs.c +++ b/drivers/iio/trigger/iio-trig-sysfs.c @@ -173,7 +173,7 @@ static int iio_sysfs_trigger_probe(int id) return 0; out2: - iio_trigger_put(t->trig); + iio_trigger_free(t->trig); free_t: kfree(t); out1: diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index cdf0a78e0c99..d88f8dbe62d9 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -1362,7 +1362,7 @@ static void ipoib_cm_tx_reap(struct work_struct *work) while (!list_empty(&priv->cm.reap_list)) { p = list_entry(priv->cm.reap_list.next, typeof(*p), list); - list_del(&p->list); + list_del_init(&p->list); spin_unlock_irqrestore(&priv->lock, flags); netif_tx_unlock_bh(dev); ipoib_cm_tx_destroy(p); diff --git a/drivers/input/keyboard/mpr121_touchkey.c b/drivers/input/keyboard/mpr121_touchkey.c index 009c82256e89..671d202a94fa 100644 --- a/drivers/input/keyboard/mpr121_touchkey.c +++ b/drivers/input/keyboard/mpr121_touchkey.c @@ -87,7 +87,8 @@ static irqreturn_t mpr_touchkey_interrupt(int irq, void *dev_id) struct mpr121_touchkey *mpr121 = dev_id; struct i2c_client *client = mpr121->client; struct input_dev *input = mpr121->input_dev; - unsigned int key_num, key_val, pressed; + unsigned long bit_changed; + unsigned int key_num; int reg; reg = i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_1_ADDR); @@ -105,18 +106,22 @@ static irqreturn_t mpr_touchkey_interrupt(int irq, void *dev_id) reg &= TOUCH_STATUS_MASK; /* use old press bit to figure out which bit changed */ - key_num = ffs(reg ^ mpr121->statusbits) - 1; - pressed = reg & (1 << key_num); + bit_changed = reg ^ mpr121->statusbits; mpr121->statusbits = reg; + for_each_set_bit(key_num, &bit_changed, mpr121->keycount) { + unsigned int key_val, pressed; - key_val = mpr121->keycodes[key_num]; + pressed = reg & BIT(key_num); + key_val = mpr121->keycodes[key_num]; - input_event(input, EV_MSC, MSC_SCAN, key_num); - input_report_key(input, key_val, pressed); - input_sync(input); + input_event(input, EV_MSC, MSC_SCAN, key_num); + input_report_key(input, key_val, pressed); + + dev_dbg(&client->dev, "key %d %d %s\n", key_num, key_val, + pressed ? "pressed" : "released"); - dev_dbg(&client->dev, "key %d %d %s\n", key_num, key_val, - pressed ? "pressed" : "released"); + } + input_sync(input); out: return IRQ_HANDLED; @@ -230,6 +235,7 @@ static int mpr_touchkey_probe(struct i2c_client *client, input_dev->id.bustype = BUS_I2C; input_dev->dev.parent = &client->dev; input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); + input_set_capability(input_dev, EV_MSC, MSC_SCAN); input_dev->keycode = mpr121->keycodes; input_dev->keycodesize = sizeof(mpr121->keycodes[0]); diff --git a/drivers/net/can/c_can/c_can_pci.c b/drivers/net/can/c_can/c_can_pci.c index 7be393c96b1a..8d2724327f69 100644 --- a/drivers/net/can/c_can/c_can_pci.c +++ b/drivers/net/can/c_can/c_can_pci.c @@ -177,7 +177,6 @@ static int c_can_pci_probe(struct pci_dev *pdev, break; case BOSCH_D_CAN: priv->regs = reg_map_d_can; - priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES; break; default: ret = -EINVAL; diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c index fb279d6ae484..ef056a33604e 100644 --- a/drivers/net/can/c_can/c_can_platform.c +++ b/drivers/net/can/c_can/c_can_platform.c @@ -257,7 +257,6 @@ static int c_can_plat_probe(struct platform_device *pdev) break; case BOSCH_D_CAN: priv->regs = reg_map_d_can; - priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES; priv->read_reg = c_can_plat_read_reg_aligned_to_16bit; priv->write_reg = c_can_plat_write_reg_aligned_to_16bit; priv->read_reg32 = d_can_plat_read_reg32; diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index 7a85ff54a39f..50b7731025c1 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -67,6 +67,7 @@ module_param(rx_drain_timeout_msecs, uint, 0444); unsigned int rx_stall_timeout_msecs = 60000; module_param(rx_stall_timeout_msecs, uint, 0444); +#define MAX_QUEUES_DEFAULT 8 unsigned int xenvif_max_queues; module_param_named(max_queues, xenvif_max_queues, uint, 0644); MODULE_PARM_DESC(max_queues, @@ -2189,11 +2190,12 @@ static int __init netback_init(void) if (!xen_domain()) return -ENODEV; - /* Allow as many queues as there are CPUs if user has not + /* Allow as many queues as there are CPUs but max. 8 if user has not * specified a value. */ if (xenvif_max_queues == 0) - xenvif_max_queues = num_online_cpus(); + xenvif_max_queues = min_t(unsigned int, MAX_QUEUES_DEFAULT, + num_online_cpus()); if (fatal_skb_slots < XEN_NETBK_LEGACY_SLOTS_MAX) { pr_info("fatal_skb_slots too small (%d), bump it to XEN_NETBK_LEGACY_SLOTS_MAX (%d)\n", diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c index a21b7c514776..b412f567a9c1 100644 --- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c +++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c @@ -258,7 +258,7 @@ out_free_irq: out1: iio_trigger_unregister(st->trig); out: - iio_trigger_put(st->trig); + iio_trigger_free(st->trig); return ret; } @@ -271,7 +271,7 @@ static int iio_bfin_tmr_trigger_remove(struct platform_device *pdev) peripheral_free(st->t->pin); free_irq(st->irq, st); iio_trigger_unregister(st->trig); - iio_trigger_put(st->trig); + iio_trigger_free(st->trig); return 0; } diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index f6c7f043c176..118d998f6ff6 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -171,18 +171,17 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = { }, /* - * Common definitions for legacy IrDA ports, dependent on - * regshift value. + * Common definitions for legacy IrDA ports. */ [SCIx_IRDA_REGTYPE] = { [SCSMR] = { 0x00, 8 }, - [SCBRR] = { 0x01, 8 }, - [SCSCR] = { 0x02, 8 }, - [SCxTDR] = { 0x03, 8 }, - [SCxSR] = { 0x04, 8 }, - [SCxRDR] = { 0x05, 8 }, - [SCFCR] = { 0x06, 8 }, - [SCFDR] = { 0x07, 16 }, + [SCBRR] = { 0x02, 8 }, + [SCSCR] = { 0x04, 8 }, + [SCxTDR] = { 0x06, 8 }, + [SCxSR] = { 0x08, 16 }, + [SCxRDR] = { 0x0a, 8 }, + [SCFCR] = { 0x0c, 8 }, + [SCFDR] = { 0x0e, 16 }, [SCTFDR] = sci_reg_invalid, [SCRFDR] = sci_reg_invalid, [SCSPTR] = sci_reg_invalid, diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 826b8fb9eb59..d7203fd67f2a 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2927,6 +2927,7 @@ void usb_remove_hcd(struct usb_hcd *hcd) } usb_put_invalidate_rhdev(hcd); + hcd->flags = 0; } EXPORT_SYMBOL_GPL(usb_remove_hcd); diff --git a/drivers/video/fbdev/pmag-ba-fb.c b/drivers/video/fbdev/pmag-ba-fb.c index 914a52ba8477..77837665ce89 100644 --- a/drivers/video/fbdev/pmag-ba-fb.c +++ b/drivers/video/fbdev/pmag-ba-fb.c @@ -129,7 +129,7 @@ static struct fb_ops pmagbafb_ops = { /* * Turn the hardware cursor off. */ -static void __init pmagbafb_erase_cursor(struct fb_info *info) +static void pmagbafb_erase_cursor(struct fb_info *info) { struct pmagbafb_par *par = info->par; diff --git a/include/linux/phy.h b/include/linux/phy.h index fbdacd1278e3..bc79f855fc32 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -135,11 +135,7 @@ static inline const char *phy_modes(phy_interface_t interface) /* Used when trying to connect to a specific phy (mii bus id:phy device id) */ #define PHY_ID_FMT "%s:%02x" -/* - * Need to be a little smaller than phydev->dev.bus_id to leave room - * for the ":%02x" - */ -#define MII_BUS_ID_SIZE (20 - 3) +#define MII_BUS_ID_SIZE 61 /* Or MII_ADDR_C45 into regnum for read/write on mii_bus to enable the 21 bit IEEE 802.3ae clause 45 addressing mode used by 10GIGE phy chips. */ @@ -573,7 +569,7 @@ struct phy_driver { /* A Structure for boards to register fixups with the PHY Lib */ struct phy_fixup { struct list_head list; - char bus_id[20]; + char bus_id[MII_BUS_ID_SIZE + 3]; u32 phy_uid; u32 phy_uid_mask; int (*run)(struct phy_device *phydev); diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h index 2398521f0998..d06bb8109cdc 100644 --- a/include/sound/seq_kernel.h +++ b/include/sound/seq_kernel.h @@ -55,7 +55,8 @@ typedef union snd_seq_timestamp snd_seq_timestamp_t; #define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200 /* max delivery path length */ -#define SNDRV_SEQ_MAX_HOPS 10 +/* NOTE: this shouldn't be greater than MAX_LOCKDEP_SUBCLASSES */ +#define SNDRV_SEQ_MAX_HOPS 8 /* max size of event size */ #define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff diff --git a/lib/asn1_decoder.c b/lib/asn1_decoder.c index 828ead6b78a8..162b6d290622 100644 --- a/lib/asn1_decoder.c +++ b/lib/asn1_decoder.c @@ -220,7 +220,7 @@ next_op: hdr = 2; /* Extract a tag from the data */ - if (unlikely(dp >= datalen - 1)) + if (unlikely(datalen - dp < 2)) goto data_overrun_error; tag = data[dp++]; if (unlikely((tag & 0x1f) == ASN1_LONG_TAG)) @@ -266,7 +266,7 @@ next_op: int n = len - 0x80; if (unlikely(n > 2)) goto length_too_long; - if (unlikely(dp >= datalen - n)) + if (unlikely(n > datalen - dp)) goto data_overrun_error; hdr += n; for (len = 0; n > 0; n--) { diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c index ac9a32ec3ee4..0157f09c0de9 100644 --- a/net/ipv4/ah4.c +++ b/net/ipv4/ah4.c @@ -270,6 +270,9 @@ static void ah_input_done(struct crypto_async_request *base, int err) int ihl = ip_hdrlen(skb); int ah_hlen = (ah->hdrlen + 2) << 2; + if (err) + goto out; + work_iph = AH_SKB_CB(skb)->tmp; auth_data = ah_tmp_auth(work_iph, ihl); icv = ah_tmp_icv(ahp->ahash, auth_data, ahp->icv_trunc_len); diff --git a/security/keys/trusted.c b/security/keys/trusted.c index aeb38f1a12e7..1273e22aaa28 100644 --- a/security/keys/trusted.c +++ b/security/keys/trusted.c @@ -69,7 +69,7 @@ static int TSS_sha1(const unsigned char *data, unsigned int datalen, } ret = crypto_shash_digest(&sdesc->shash, data, datalen, digest); - kfree(sdesc); + kzfree(sdesc); return ret; } @@ -113,7 +113,7 @@ static int TSS_rawhmac(unsigned char *digest, const unsigned char *key, if (!ret) ret = crypto_shash_final(&sdesc->shash, digest); out: - kfree(sdesc); + kzfree(sdesc); return ret; } @@ -164,7 +164,7 @@ static int TSS_authhmac(unsigned char *digest, const unsigned char *key, paramdigest, TPM_NONCE_SIZE, h1, TPM_NONCE_SIZE, h2, 1, &c, 0, 0); out: - kfree(sdesc); + kzfree(sdesc); return ret; } @@ -245,7 +245,7 @@ static int TSS_checkhmac1(unsigned char *buffer, if (memcmp(testhmac, authdata, SHA1_DIGEST_SIZE)) ret = -EINVAL; out: - kfree(sdesc); + kzfree(sdesc); return ret; } @@ -346,7 +346,7 @@ static int TSS_checkhmac2(unsigned char *buffer, if (memcmp(testhmac2, authdata2, SHA1_DIGEST_SIZE)) ret = -EINVAL; out: - kfree(sdesc); + kzfree(sdesc); return ret; } @@ -563,7 +563,7 @@ static int tpm_seal(struct tpm_buf *tb, uint16_t keytype, *bloblen = storedsize; } out: - kfree(td); + kzfree(td); return ret; } @@ -677,7 +677,7 @@ static int key_seal(struct trusted_key_payload *p, if (ret < 0) pr_info("trusted_key: srkseal failed (%d)\n", ret); - kfree(tb); + kzfree(tb); return ret; } @@ -702,7 +702,7 @@ static int key_unseal(struct trusted_key_payload *p, /* pull migratable flag out of sealed key */ p->migratable = p->key[--p->key_len]; - kfree(tb); + kzfree(tb); return ret; } @@ -961,12 +961,12 @@ static int trusted_instantiate(struct key *key, if (!ret && options->pcrlock) ret = pcrlock(options->pcrlock); out: - kfree(datablob); - kfree(options); + kzfree(datablob); + kzfree(options); if (!ret) rcu_assign_keypointer(key, payload); else - kfree(payload); + kzfree(payload); return ret; } @@ -975,8 +975,7 @@ static void trusted_rcu_free(struct rcu_head *rcu) struct trusted_key_payload *p; p = container_of(rcu, struct trusted_key_payload, rcu); - memset(p->key, 0, p->key_len); - kfree(p); + kzfree(p); } /* @@ -1018,9 +1017,10 @@ static int trusted_update(struct key *key, struct key_preparsed_payload *prep) ret = datablob_parse(datablob, new_p, new_o); if (ret != Opt_update) { ret = -EINVAL; - kfree(new_p); + kzfree(new_p); goto out; } + /* copy old key values, and reseal with new pcrs */ new_p->migratable = p->migratable; new_p->key_len = p->key_len; @@ -1031,22 +1031,22 @@ static int trusted_update(struct key *key, struct key_preparsed_payload *prep) ret = key_seal(new_p, new_o); if (ret < 0) { pr_info("trusted_key: key_seal failed (%d)\n", ret); - kfree(new_p); + kzfree(new_p); goto out; } if (new_o->pcrlock) { ret = pcrlock(new_o->pcrlock); if (ret < 0) { pr_info("trusted_key: pcrlock failed (%d)\n", ret); - kfree(new_p); + kzfree(new_p); goto out; } } rcu_assign_keypointer(key, new_p); call_rcu(&p->rcu, trusted_rcu_free); out: - kfree(datablob); - kfree(new_o); + kzfree(datablob); + kzfree(new_o); return ret; } @@ -1065,34 +1065,30 @@ static long trusted_read(const struct key *key, char __user *buffer, p = rcu_dereference_key(key); if (!p) return -EINVAL; - if (!buffer || buflen <= 0) - return 2 * p->blob_len; - ascii_buf = kmalloc(2 * p->blob_len, GFP_KERNEL); - if (!ascii_buf) - return -ENOMEM; - bufp = ascii_buf; - for (i = 0; i < p->blob_len; i++) - bufp = hex_byte_pack(bufp, p->blob[i]); - if ((copy_to_user(buffer, ascii_buf, 2 * p->blob_len)) != 0) { - kfree(ascii_buf); - return -EFAULT; + if (buffer && buflen >= 2 * p->blob_len) { + ascii_buf = kmalloc(2 * p->blob_len, GFP_KERNEL); + if (!ascii_buf) + return -ENOMEM; + + bufp = ascii_buf; + for (i = 0; i < p->blob_len; i++) + bufp = hex_byte_pack(bufp, p->blob[i]); + if (copy_to_user(buffer, ascii_buf, 2 * p->blob_len) != 0) { + kzfree(ascii_buf); + return -EFAULT; + } + kzfree(ascii_buf); } - kfree(ascii_buf); return 2 * p->blob_len; } /* - * trusted_destroy - before freeing the key, clear the decrypted data + * trusted_destroy - clear and free the key's payload */ static void trusted_destroy(struct key *key) { - struct trusted_key_payload *p = key->payload.data; - - if (!p) - return; - memset(p->key, 0, p->key_len); - kfree(key->payload.data); + kzfree(key->payload.data); } struct key_type key_type_trusted = { diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c index 3a4569669efa..86353dc0439c 100644 --- a/sound/core/seq/oss/seq_oss_midi.c +++ b/sound/core/seq/oss/seq_oss_midi.c @@ -615,9 +615,7 @@ send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq if (!dp->timer->running) len = snd_seq_oss_timer_start(dp->timer); if (ev->type == SNDRV_SEQ_EVENT_SYSEX) { - if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE) - snd_seq_oss_readq_puts(dp->readq, mdev->seq_device, - ev->data.ext.ptr, ev->data.ext.len); + snd_seq_oss_readq_sysex(dp->readq, mdev->seq_device, ev); } else { len = snd_midi_event_decode(mdev->coder, msg, sizeof(msg), ev); if (len > 0) diff --git a/sound/core/seq/oss/seq_oss_readq.c b/sound/core/seq/oss/seq_oss_readq.c index 654d17a5023c..dffc27374bdf 100644 --- a/sound/core/seq/oss/seq_oss_readq.c +++ b/sound/core/seq/oss/seq_oss_readq.c @@ -119,6 +119,35 @@ snd_seq_oss_readq_puts(struct seq_oss_readq *q, int dev, unsigned char *data, in return 0; } +/* + * put MIDI sysex bytes; the event buffer may be chained, thus it has + * to be expanded via snd_seq_dump_var_event(). + */ +struct readq_sysex_ctx { + struct seq_oss_readq *readq; + int dev; +}; + +static int readq_dump_sysex(void *ptr, void *buf, int count) +{ + struct readq_sysex_ctx *ctx = ptr; + + return snd_seq_oss_readq_puts(ctx->readq, ctx->dev, buf, count); +} + +int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev, + struct snd_seq_event *ev) +{ + struct readq_sysex_ctx ctx = { + .readq = q, + .dev = dev + }; + + if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) != SNDRV_SEQ_EVENT_LENGTH_VARIABLE) + return 0; + return snd_seq_dump_var_event(ev, readq_dump_sysex, &ctx); +} + /* * copy an event to input queue: * return zero if enqueued diff --git a/sound/core/seq/oss/seq_oss_readq.h b/sound/core/seq/oss/seq_oss_readq.h index f1463f1f449e..8d033ca2d23f 100644 --- a/sound/core/seq/oss/seq_oss_readq.h +++ b/sound/core/seq/oss/seq_oss_readq.h @@ -44,6 +44,8 @@ void snd_seq_oss_readq_delete(struct seq_oss_readq *q); void snd_seq_oss_readq_clear(struct seq_oss_readq *readq); unsigned int snd_seq_oss_readq_poll(struct seq_oss_readq *readq, struct file *file, poll_table *wait); int snd_seq_oss_readq_puts(struct seq_oss_readq *readq, int dev, unsigned char *data, int len); +int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev, + struct snd_seq_event *ev); int snd_seq_oss_readq_put_event(struct seq_oss_readq *readq, union evrec *ev); int snd_seq_oss_readq_put_timestamp(struct seq_oss_readq *readq, unsigned long curt, int seq_mode); int snd_seq_oss_readq_pick(struct seq_oss_readq *q, union evrec *rec);

7 years, 7 months

1
0
0 0

[Linux-stable-mirror] [PATCH] uas: Add US_FL_NO_ATA_1X quirk for one more Seagate device

by Hans de Goede

Just like all previous UAS capable Seagate disk enclosures, this one needs a US_FL_NO_ATA_1X quirk. Cc: stable(a)vger.kernel.org # 3.16 Reported-by: Wido <wido.gg(a)gmail.com> Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> --- drivers/usb/storage/unusual_uas.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h index 2fe4fd336446..a1ddcbfb7323 100644 --- a/drivers/usb/storage/unusual_uas.h +++ b/drivers/usb/storage/unusual_uas.h @@ -114,6 +114,13 @@ UNUSUAL_DEV(0x0bc2, 0xab21, 0x0000, 0x9999, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NO_ATA_1X), +/* Reported-by: Wido <wido.gg(a)gmail.com> */ +UNUSUAL_DEV(0x0bc2, 0xab24, 0x0000, 0x9999, + "Seagate", + "BUP Slim BK", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_NO_ATA_1X), + /* Reported-by: G. Richard Bellamy <rbellamy(a)pteradigm.com> */ UNUSUAL_DEV(0x0bc2, 0xab2a, 0x0000, 0x9999, "Seagate", -- 2.14.3

7 years, 7 months

3
5
0 0

Re: [Linux-stable-mirror] [PATCH 3.18 36/68] Handle mismatched open calls

by Greg Kroah-Hartman

On Fri, Jul 14, 2017 at 05:42:32PM +0100, Ben Hutchings wrote: > On Fri, 2017-05-05 at 11:32 -0700, Greg Kroah-Hartman wrote: > > 3.18-stable review patch. If anyone has any objections, please let me know. > > > > ------------------ > > > > From: Sachin Prabhu <sprabhu(a)redhat.com> > > > > commit 38bd49064a1ecb67baad33598e3d824448ab11ec upstream. > [...] > > --- a/fs/cifs/smb2ops.c > > +++ b/fs/cifs/smb2ops.c > > @@ -1461,6 +1461,8 @@ struct smb_version_operations smb21_oper > > .clear_stats = smb2_clear_stats, > > .print_stats = smb2_print_stats, > > .is_oplock_break = smb2_is_valid_oplock_break, > > + .handle_cancelled_mid = smb2_handle_cancelled_mid, > > + .handle_cancelled_mid = smb2_handle_cancelled_mid, > > .downgrade_oplock = smb2_downgrade_oplock, > > .need_neg = smb2_need_neg, > > .negotiate = smb2_negotiate, > > @@ -1542,6 +1544,8 @@ struct smb_version_operations smb30_oper > > .print_stats = smb2_print_stats, > > .dump_share_caps = smb2_dump_share_caps, > > .is_oplock_break = smb2_is_valid_oplock_break, > > + .handle_cancelled_mid = smb2_handle_cancelled_mid, > > + .handle_cancelled_mid = smb2_handle_cancelled_mid, > > .downgrade_oplock = smb2_downgrade_oplock, > > .need_neg = smb2_need_neg, > > .negotiate = smb2_negotiate, > [...] > > This doesn't look right. handle_cancelled_mid should be initialised > once in each of the 3 smb_version_operations structures, shouldn't it? Yeah, something is odd with this, I'll look into it later today, thanks for flagging it. greg k-h

7 years, 7 months

1
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[Linux-stable-mirror] [PATCH] ALSA: usb-audio: Fix out-of-bound error

by Jaejoong Kim

The snd_usb_copy_string_desc() retrieves the usb string corresponding to the index number thought the usb_string(). And for NULL-terminated, insert '0' by using the return value of usb_string() as the index of buffer to hold the string. The problem is that the usb_string() also returns the length of the string read(>= 0), but it can also return a negative value, the error or status value of usb_control_msg(). If iClockSource is '0' as shown below, usb_string() will return -EINVAL. This will result in '0' being inserted into buf[-22], and the following KASAN out-of-bound error message will be output. AudioControl Interface Descriptor: bLength 8 bDescriptorType 36 bDescriptorSubtype 10 (CLOCK_SOURCE) bClockID 1 bmAttributes 0x07 Internal programmable Clock (synced to SOF) bmControls 0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal 0 iClockSource 0 To fix out-of-bound error, insert 0 only if the return value of usb_string() is greater than 0. ================================================================== BUG: KASAN: stack-out-of-bounds in parse_audio_unit+0x1327/0x1960 [snd_usb_audio] Write of size 1 at addr ffff88007e66735a by task systemd-udevd/18376 CPU: 0 PID: 18376 Comm: systemd-udevd Not tainted 4.13.0+ #3 Hardware name: LG Electronics 15N540-RFLGL/White Tip Mountain, BIOS 15N5 Call Trace: dump_stack+0x63/0x8d print_address_description+0x70/0x290 ? parse_audio_unit+0x1327/0x1960 [snd_usb_audio] kasan_report+0x265/0x350 __asan_store1+0x4a/0x50 parse_audio_unit+0x1327/0x1960 [snd_usb_audio] ? save_stack+0xb5/0xd0 ? save_stack_trace+0x1b/0x20 ? save_stack+0x46/0xd0 ? kasan_kmalloc+0xad/0xe0 ? kmem_cache_alloc_trace+0xff/0x230 ? snd_usb_create_mixer+0xb0/0x4b0 [snd_usb_audio] ? usb_audio_probe+0x4de/0xf40 [snd_usb_audio] ? usb_probe_interface+0x1f5/0x440 ? driver_probe_device+0x3ed/0x660 ? build_feature_ctl+0xb10/0xb10 [snd_usb_audio] ? save_stack_trace+0x1b/0x20 ? init_object+0x69/0xa0 ? snd_usb_find_csint_desc+0xa8/0xf0 [snd_usb_audio] snd_usb_mixer_controls+0x1dc/0x370 [snd_usb_audio] ? build_audio_procunit+0x890/0x890 [snd_usb_audio] ? snd_usb_create_mixer+0xb0/0x4b0 [snd_usb_audio] ? kmem_cache_alloc_trace+0xff/0x230 ? usb_ifnum_to_if+0xbd/0xf0 snd_usb_create_mixer+0x25b/0x4b0 [snd_usb_audio] ? snd_usb_create_stream+0x255/0x2c0 [snd_usb_audio] usb_audio_probe+0x4de/0xf40 [snd_usb_audio] ? snd_usb_autosuspend.part.7+0x30/0x30 [snd_usb_audio] ? __pm_runtime_idle+0x90/0x90 ? kernfs_activate+0xa6/0xc0 ? usb_match_one_id_intf+0xdc/0x130 ? __pm_runtime_set_status+0x2d4/0x450 usb_probe_interface+0x1f5/0x440 Cc: <stable(a)vger.kernel.org> Signed-off-by: Jaejoong Kim <climbbb.kim(a)gmail.com> --- The AudioControl Interface Descriptor in commit message is from lsusb output with real usb audio DAC. The usb audio product causing the OOB are as follows: http://www.lg.com/uk/lg-friends/lg-AFD-1200 It only prints OOB error and usb audio works well. :) sound/usb/mixer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index e630813..5a83c2c 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -204,7 +204,8 @@ static int snd_usb_copy_string_desc(struct mixer_build *state, int index, char *buf, int maxlen) { int len = usb_string(state->chip->dev, index, buf, maxlen - 1); - buf[len] = 0; + if (len > 0) + buf[len] = 0; return len; } -- 2.7.4

7 years, 7 months

1
0
0 0

[Linux-stable-mirror] [PATCH AUTOSEL for 3.18 01/16] ACPICA: Resources: Not a valid resource if buffer length too long

by alexander.levin＠verizon.com

From: Bob Moore <robert.moore(a)intel.com> [ Upstream commit 57707a9a7780fab426b8ae9b4c7b65b912a748b3 ] ACPICA commit 9f76de2d249b18804e35fb55d14b1c2604d627a1 ACPICA commit b2e89d72ef1e9deefd63c3fd1dee90f893575b3a ACPICA commit 23b5bbe6d78afd3c5abf3adb91a1b098a3000b2e The declared buffer length must be the same as the length of the byte initializer list, otherwise not a valid resource descriptor. Link: https://github.com/acpica/acpica/commit/9f76de2d Link: https://github.com/acpica/acpica/commit/b2e89d72 Link: https://github.com/acpica/acpica/commit/23b5bbe6 Signed-off-by: Bob Moore <robert.moore(a)intel.com> Signed-off-by: Lv Zheng <lv.zheng(a)intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> --- drivers/acpi/acpica/utresrc.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c index 5cd017c7ac0e..94b3ee013761 100644 --- a/drivers/acpi/acpica/utresrc.c +++ b/drivers/acpi/acpica/utresrc.c @@ -421,8 +421,10 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, ACPI_FUNCTION_TRACE(ut_walk_aml_resources); - /* The absolute minimum resource template is one end_tag descriptor */ - + /* + * The absolute minimum resource template is one end_tag descriptor. + * However, we will treat a lone end_tag as just a simple buffer. + */ if (aml_length < sizeof(struct aml_resource_end_tag)) { return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); } @@ -454,9 +456,8 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, /* Invoke the user function */ if (user_function) { - status = - user_function(aml, length, offset, resource_index, - context); + status = user_function(aml, length, offset, + resource_index, context); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -480,6 +481,12 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, *context = aml; } + /* Check if buffer is defined to be longer than the resource length */ + + if (aml_length > (offset + length)) { + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); + } + /* Normal exit */ return_ACPI_STATUS(AE_OK); -- 2.11.0

7 years, 7 months

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[Linux-stable-mirror] [PATCH AUTOSEL for 4.4 01/28] ACPICA: Resources: Not a valid resource if buffer length too long

by alexander.levin＠verizon.com

From: Bob Moore <robert.moore(a)intel.com> [ Upstream commit 57707a9a7780fab426b8ae9b4c7b65b912a748b3 ] ACPICA commit 9f76de2d249b18804e35fb55d14b1c2604d627a1 ACPICA commit b2e89d72ef1e9deefd63c3fd1dee90f893575b3a ACPICA commit 23b5bbe6d78afd3c5abf3adb91a1b098a3000b2e The declared buffer length must be the same as the length of the byte initializer list, otherwise not a valid resource descriptor. Link: https://github.com/acpica/acpica/commit/9f76de2d Link: https://github.com/acpica/acpica/commit/b2e89d72 Link: https://github.com/acpica/acpica/commit/23b5bbe6 Signed-off-by: Bob Moore <robert.moore(a)intel.com> Signed-off-by: Lv Zheng <lv.zheng(a)intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> --- drivers/acpi/acpica/utresrc.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c index b3505dbc715e..3f903f4855db 100644 --- a/drivers/acpi/acpica/utresrc.c +++ b/drivers/acpi/acpica/utresrc.c @@ -421,8 +421,10 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, ACPI_FUNCTION_TRACE(ut_walk_aml_resources); - /* The absolute minimum resource template is one end_tag descriptor */ - + /* + * The absolute minimum resource template is one end_tag descriptor. + * However, we will treat a lone end_tag as just a simple buffer. + */ if (aml_length < sizeof(struct aml_resource_end_tag)) { return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); } @@ -454,9 +456,8 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, /* Invoke the user function */ if (user_function) { - status = - user_function(aml, length, offset, resource_index, - context); + status = user_function(aml, length, offset, + resource_index, context); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -480,6 +481,12 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, *context = aml; } + /* Check if buffer is defined to be longer than the resource length */ + + if (aml_length > (offset + length)) { + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); + } + /* Normal exit */ return_ACPI_STATUS(AE_OK); -- 2.11.0

7 years, 7 months

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[Linux-stable-mirror] [PATCH 2/2] clk: ti: dra7-atl-clock: fix child-node lookups

by Johan Hovold

Fix child node-lookup during probe, which ended up searching the whole device tree depth-first starting at parent rather than just matching on its children. Note that the original premature free of the parent node has already been fixed separately, but that fix was apparently never backported to stable. Fixes: 9ac33b0ce81f ("CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)") Fixes: 660e15519399 ("clk: ti: dra7-atl-clock: Fix of_node reference counting") Cc: stable <stable(a)vger.kernel.org> # 3.16: 660e15519399 Cc: Peter Ujfalusi <peter.ujfalusi(a)ti.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> --- drivers/clk/ti/clk-dra7-atl.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c index 13eb04f72389..148815470431 100644 --- a/drivers/clk/ti/clk-dra7-atl.c +++ b/drivers/clk/ti/clk-dra7-atl.c @@ -274,8 +274,7 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev) /* Get configuration for the ATL instances */ snprintf(prop, sizeof(prop), "atl%u", i); - of_node_get(node); - cfg_node = of_find_node_by_name(node, prop); + cfg_node = of_get_child_by_name(node, prop); if (cfg_node) { ret = of_property_read_u32(cfg_node, "bws", &cdesc->bws); -- 2.15.0

7 years, 7 months

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[Linux-stable-mirror] + mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages.patch added to -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm: fix device-dax pud write-faults triggered by get_user_pages() has been added to the -mm tree. Its filename is mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-fix-device-dax-pud-write-faults… and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-fix-device-dax-pud-write-faults… Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Dan Williams <dan.j.williams(a)intel.com> Subject: mm: fix device-dax pud write-faults triggered by get_user_pages() Currently only get_user_pages_fast() can safely handle the writable gup case due to its use of pud_access_permitted() to check whether the pud entry is writable. In the gup slow path pud_write() is used instead of pud_access_permitted() and to date it has been unimplemented, just calls BUG_ON(). kernel BUG at ./include/linux/hugetlb.h:244! [..] RIP: 0010:follow_devmap_pud+0x482/0x490 [..] Call Trace: follow_page_mask+0x28c/0x6e0 __get_user_pages+0xe4/0x6c0 get_user_pages_unlocked+0x130/0x1b0 get_user_pages_fast+0x89/0xb0 iov_iter_get_pages_alloc+0x114/0x4a0 nfs_direct_read_schedule_iovec+0xd2/0x350 ? nfs_start_io_direct+0x63/0x70 nfs_file_direct_read+0x1e0/0x250 nfs_file_read+0x90/0xc0 For now this just implements a simple check for the _PAGE_RW bit similar to pmd_write. However, this implies that the gup-slow-path check is missing the extra checks that the gup-fast-path performs with pud_access_permitted. Later patches will align all checks to use the 'access_permitted' helper if the architecture provides it. Note that the generic 'access_permitted' helper fallback is the simple _PAGE_RW check on architectures that do not define the 'access_permitted' helper(s). Link: http://lkml.kernel.org/r/151043109938.2842.14834662818213616199.stgit@dwill… Fixes: a00cc7d9dd93 ("mm, x86: add support for PUD-sized transparent hugepages") Signed-off-by: Dan Williams <dan.j.williams(a)intel.com> Cc: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Cc: Catalin Marinas <catalin.marinas(a)arm.com> Cc: "David S. Miller" <davem(a)davemloft.net> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: Will Deacon <will.deacon(a)arm.com> Cc: "H. Peter Anvin" <hpa(a)zytor.com> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: Arnd Bergmann <arnd(a)arndb.de> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- arch/arm64/include/asm/pgtable.h | 1 + arch/sparc/include/asm/pgtable_64.h | 1 + arch/x86/include/asm/pgtable.h | 6 ++++++ include/asm-generic/pgtable.h | 9 +++++++++ include/linux/hugetlb.h | 8 -------- 5 files changed, 17 insertions(+), 8 deletions(-) diff -puN arch/arm64/include/asm/pgtable.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages arch/arm64/include/asm/pgtable.h --- a/arch/arm64/include/asm/pgtable.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages +++ a/arch/arm64/include/asm/pgtable.h @@ -340,6 +340,7 @@ static inline int pmd_protnone(pmd_t pmd #define pfn_pmd(pfn,prot) (__pmd(((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot))) #define mk_pmd(page,prot) pfn_pmd(page_to_pfn(page),prot) +#define __HAVE_ARCH_PUD_WRITE #define pud_write(pud) pte_write(pud_pte(pud)) #define pud_pfn(pud) (((pud_val(pud) & PUD_MASK) & PHYS_MASK) >> PAGE_SHIFT) diff -puN arch/sparc/include/asm/pgtable_64.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages arch/sparc/include/asm/pgtable_64.h --- a/arch/sparc/include/asm/pgtable_64.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages +++ a/arch/sparc/include/asm/pgtable_64.h @@ -723,6 +723,7 @@ static inline unsigned long pmd_write(pm return pte_write(pte); } +#define __HAVE_ARCH_PUD_WRITE #define pud_write(pud) pte_write(__pte(pud_val(pud))) #ifdef CONFIG_TRANSPARENT_HUGEPAGE diff -puN arch/x86/include/asm/pgtable.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages arch/x86/include/asm/pgtable.h --- a/arch/x86/include/asm/pgtable.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages +++ a/arch/x86/include/asm/pgtable.h @@ -1088,6 +1088,12 @@ static inline void pmdp_set_wrprotect(st clear_bit(_PAGE_BIT_RW, (unsigned long *)pmdp); } +#define __HAVE_ARCH_PUD_WRITE +static inline int pud_write(pud_t pud) +{ + return pud_flags(pud) & _PAGE_RW; +} + /* * clone_pgd_range(pgd_t *dst, pgd_t *src, int count); * diff -puN include/asm-generic/pgtable.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages include/asm-generic/pgtable.h --- a/include/asm-generic/pgtable.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages +++ a/include/asm-generic/pgtable.h @@ -812,6 +812,15 @@ static inline int pmd_write(pmd_t pmd) return 0; } #endif /* __HAVE_ARCH_PMD_WRITE */ + +#ifndef __HAVE_ARCH_PUD_WRITE +static inline int pud_write(pud_t pud) +{ + BUG(); + return 0; +} +#endif /* __HAVE_ARCH_PUD_WRITE */ + #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ #if !defined(CONFIG_TRANSPARENT_HUGEPAGE) || \ diff -puN include/linux/hugetlb.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages include/linux/hugetlb.h --- a/include/linux/hugetlb.h~mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages +++ a/include/linux/hugetlb.h @@ -239,14 +239,6 @@ static inline int pgd_write(pgd_t pgd) } #endif -#ifndef pud_write -static inline int pud_write(pud_t pud) -{ - BUG(); - return 0; -} -#endif - #define HUGETLB_ANON_FILE "anon_hugepage" enum { _ Patches currently in -mm which might be from dan.j.williams(a)intel.com are mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages.patch mm-replace-pud_write-with-pud_access_permitted-in-fault-gup-paths.patch mm-replace-pmd_write-with-pmd_access_permitted-in-fault-gup-paths.patch mm-replace-pte_write-with-pte_access_permitted-in-fault-gup-paths.patch

7 years, 7 months

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