diff --git a/Makefile b/Makefile index 9f37a8a9feb9..39c4e7c3c13c 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 4 PATCHLEVEL = 19 -SUBLEVEL = 18 +SUBLEVEL = 19 EXTRAVERSION = NAME = "People's Front" diff --git a/arch/arc/include/asm/perf_event.h b/arch/arc/include/asm/perf_event.h index 9185541035cc..6958545390f0 100644 --- a/arch/arc/include/asm/perf_event.h +++ b/arch/arc/include/asm/perf_event.h @@ -103,7 +103,8 @@ static const char * const arc_pmu_ev_hw_map[] = { /* counts condition */ [PERF_COUNT_HW_INSTRUCTIONS] = "iall", - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmp", /* Excludes ZOL jumps */ + /* All jump instructions that are taken */ + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmptak", [PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */ #ifdef CONFIG_ISA_ARCV2 [PERF_COUNT_HW_BRANCH_MISSES] = "bpmp", diff --git a/arch/arc/lib/memset-archs.S b/arch/arc/lib/memset-archs.S index 62ad4bcb841a..f230bb7092fd 100644 --- a/arch/arc/lib/memset-archs.S +++ b/arch/arc/lib/memset-archs.S @@ -7,11 +7,39 @@ */ #include <linux/linkage.h> +#include <asm/cache.h> -#undef PREALLOC_NOT_AVAIL +/* + * The memset implementation below is optimized to use prefetchw and prealloc + * instruction in case of CPU with 64B L1 data cache line (L1_CACHE_SHIFT == 6) + * If you want to implement optimized memset for other possible L1 data cache + * line lengths (32B and 128B) you should rewrite code carefully checking + * we don't call any prefetchw/prealloc instruction for L1 cache lines which + * don't belongs to memset area. + */ + +#if L1_CACHE_SHIFT == 6 + +.macro PREALLOC_INSTR reg, off + prealloc [\reg, \off] +.endm + +.macro PREFETCHW_INSTR reg, off + prefetchw [\reg, \off] +.endm + +#else + +.macro PREALLOC_INSTR +.endm + +.macro PREFETCHW_INSTR +.endm + +#endif ENTRY_CFI(memset) - prefetchw [r0] ; Prefetch the write location + PREFETCHW_INSTR r0, 0 ; Prefetch the first write location mov.f 0, r2 ;;; if size is zero jz.d [blink] @@ -48,11 +76,8 @@ ENTRY_CFI(memset) lpnz @.Lset64bytes ;; LOOP START -#ifdef PREALLOC_NOT_AVAIL - prefetchw [r3, 64] ;Prefetch the next write location -#else - prealloc [r3, 64] -#endif + PREALLOC_INSTR r3, 64 ; alloc next line w/o fetching + #ifdef CONFIG_ARC_HAS_LL64 std.ab r4, [r3, 8] std.ab r4, [r3, 8] @@ -85,7 +110,6 @@ ENTRY_CFI(memset) lsr.f lp_count, r2, 5 ;Last remaining max 124 bytes lpnz .Lset32bytes ;; LOOP START - prefetchw [r3, 32] ;Prefetch the next write location #ifdef CONFIG_ARC_HAS_LL64 std.ab r4, [r3, 8] std.ab r4, [r3, 8] diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index ba145065c579..f890b2f9f82f 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -138,7 +138,8 @@ void __init setup_arch_memory(void) */ memblock_add_node(low_mem_start, low_mem_sz, 0); - memblock_reserve(low_mem_start, __pa(_end) - low_mem_start); + memblock_reserve(CONFIG_LINUX_LINK_BASE, + __pa(_end) - CONFIG_LINUX_LINK_BASE); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start) diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index f1ab9420ccfb..09b61d0e491f 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -89,8 +89,6 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, { int cpu = smp_processor_id(); - if (prev == next) - return; S390_lowcore.user_asce = next->context.asce; cpumask_set_cpu(cpu, &next->context.cpu_attach_mask); /* Clear previous user-ASCE from CR1 and CR7 */ @@ -102,7 +100,8 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, __ctl_load(S390_lowcore.vdso_asce, 7, 7); clear_cpu_flag(CIF_ASCE_SECONDARY); } - cpumask_clear_cpu(cpu, &prev->context.cpu_attach_mask); + if (prev != next) + cpumask_clear_cpu(cpu, &prev->context.cpu_attach_mask); } #define finish_arch_post_lock_switch finish_arch_post_lock_switch diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 5b28b434f8a1..e7e6608b996c 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -64,10 +64,10 @@ static noinline __init void detect_machine_type(void) if (stsi(vmms, 3, 2, 2) || !vmms->count) return; - /* Running under KVM? If not we assume z/VM */ + /* Detect known hypervisors */ if (!memcmp(vmms->vm[0].cpi, "\xd2\xe5\xd4", 3)) S390_lowcore.machine_flags |= MACHINE_FLAG_KVM; - else + else if (!memcmp(vmms->vm[0].cpi, "\xa9\x61\xe5\xd4", 4)) S390_lowcore.machine_flags |= MACHINE_FLAG_VM; } diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index c637c12f9e37..a0097f8bada8 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -882,6 +882,8 @@ void __init setup_arch(char **cmdline_p) pr_info("Linux is running under KVM in 64-bit mode\n"); else if (MACHINE_IS_LPAR) pr_info("Linux is running natively in 64-bit mode\n"); + else + pr_info("Linux is running as a guest in 64-bit mode\n"); /* Have one command line that is parsed and saved in /proc/cmdline */ /* boot_command_line has been already set up in early.c */ diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 2f8f7d7dd9a8..da02f4087d61 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -371,9 +371,13 @@ void smp_call_online_cpu(void (*func)(void *), void *data) */ void smp_call_ipl_cpu(void (*func)(void *), void *data) { + struct lowcore *lc = pcpu_devices->lowcore; + + if (pcpu_devices[0].address == stap()) + lc = &S390_lowcore; + pcpu_delegate(&pcpu_devices[0], func, data, - pcpu_devices->lowcore->panic_stack - - PANIC_FRAME_OFFSET + PAGE_SIZE); + lc->panic_stack - PANIC_FRAME_OFFSET + PAGE_SIZE); } int smp_find_processor_id(u16 address) @@ -1152,7 +1156,11 @@ static ssize_t __ref rescan_store(struct device *dev, { int rc; + rc = lock_device_hotplug_sysfs(); + if (rc) + return rc; rc = smp_rescan_cpus(); + unlock_device_hotplug(); return rc ? rc : count; } static DEVICE_ATTR_WO(rescan); diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S index 7d0df78db727..40d2834a8101 100644 --- a/arch/x86/entry/entry_64_compat.S +++ b/arch/x86/entry/entry_64_compat.S @@ -356,7 +356,8 @@ ENTRY(entry_INT80_compat) /* Need to switch before accessing the thread stack. */ SWITCH_TO_KERNEL_CR3 scratch_reg=%rdi - movq %rsp, %rdi + /* In the Xen PV case we already run on the thread stack. */ + ALTERNATIVE "movq %rsp, %rdi", "jmp .Lint80_keep_stack", X86_FEATURE_XENPV movq PER_CPU_VAR(cpu_current_top_of_stack), %rsp pushq 6*8(%rdi) /* regs->ss */ @@ -365,8 +366,9 @@ ENTRY(entry_INT80_compat) pushq 3*8(%rdi) /* regs->cs */ pushq 2*8(%rdi) /* regs->ip */ pushq 1*8(%rdi) /* regs->orig_ax */ - pushq (%rdi) /* pt_regs->di */ +.Lint80_keep_stack: + pushq %rsi /* pt_regs->si */ xorl %esi, %esi /* nospec si */ pushq %rdx /* pt_regs->dx */ diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h index eeeb9289c764..2252b63d38b5 100644 --- a/arch/x86/include/asm/mmu_context.h +++ b/arch/x86/include/asm/mmu_context.h @@ -178,6 +178,10 @@ static inline void switch_ldt(struct mm_struct *prev, struct mm_struct *next) void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk); +/* + * Init a new mm. Used on mm copies, like at fork() + * and on mm's that are brand-new, like at execve(). + */ static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { @@ -228,8 +232,22 @@ do { \ } while (0) #endif +static inline void arch_dup_pkeys(struct mm_struct *oldmm, + struct mm_struct *mm) +{ +#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS + if (!cpu_feature_enabled(X86_FEATURE_OSPKE)) + return; + + /* Duplicate the oldmm pkey state in mm: */ + mm->context.pkey_allocation_map = oldmm->context.pkey_allocation_map; + mm->context.execute_only_pkey = oldmm->context.execute_only_pkey; +#endif +} + static inline int arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm) { + arch_dup_pkeys(oldmm, mm); paravirt_arch_dup_mmap(oldmm, mm); return ldt_dup_context(oldmm, mm); } diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index d9b71924c23c..7f89d609095a 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -457,6 +457,7 @@ static void __send_ipi_mask(const struct cpumask *mask, int vector) #else u64 ipi_bitmap = 0; #endif + long ret; if (cpumask_empty(mask)) return; @@ -482,8 +483,9 @@ static void __send_ipi_mask(const struct cpumask *mask, int vector) } else if (apic_id < min + KVM_IPI_CLUSTER_SIZE) { max = apic_id < max ? max : apic_id; } else { - kvm_hypercall4(KVM_HC_SEND_IPI, (unsigned long)ipi_bitmap, + ret = kvm_hypercall4(KVM_HC_SEND_IPI, (unsigned long)ipi_bitmap, (unsigned long)(ipi_bitmap >> BITS_PER_LONG), min, icr); + WARN_ONCE(ret < 0, "KVM: failed to send PV IPI: %ld", ret); min = max = apic_id; ipi_bitmap = 0; } @@ -491,8 +493,9 @@ static void __send_ipi_mask(const struct cpumask *mask, int vector) } if (ipi_bitmap) { - kvm_hypercall4(KVM_HC_SEND_IPI, (unsigned long)ipi_bitmap, + ret = kvm_hypercall4(KVM_HC_SEND_IPI, (unsigned long)ipi_bitmap, (unsigned long)(ipi_bitmap >> BITS_PER_LONG), min, icr); + WARN_ONCE(ret < 0, "KVM: failed to send PV IPI: %ld", ret); } local_irq_restore(flags); diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 841740045554..39a0e34ff676 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8290,11 +8290,11 @@ static int enter_vmx_operation(struct kvm_vcpu *vcpu) if (r < 0) goto out_vmcs02; - vmx->nested.cached_vmcs12 = kmalloc(VMCS12_SIZE, GFP_KERNEL); + vmx->nested.cached_vmcs12 = kzalloc(VMCS12_SIZE, GFP_KERNEL); if (!vmx->nested.cached_vmcs12) goto out_cached_vmcs12; - vmx->nested.cached_shadow_vmcs12 = kmalloc(VMCS12_SIZE, GFP_KERNEL); + vmx->nested.cached_shadow_vmcs12 = kzalloc(VMCS12_SIZE, GFP_KERNEL); if (!vmx->nested.cached_shadow_vmcs12) goto out_cached_shadow_vmcs12; @@ -11733,7 +11733,7 @@ static int nested_vmx_check_apicv_controls(struct kvm_vcpu *vcpu, !nested_exit_intr_ack_set(vcpu) || (vmcs12->posted_intr_nv & 0xff00) || (vmcs12->posted_intr_desc_addr & 0x3f) || - (!page_address_valid(vcpu, vmcs12->posted_intr_desc_addr)))) + (vmcs12->posted_intr_desc_addr >> cpuid_maxphyaddr(vcpu)))) return -EINVAL; /* tpr shadow is needed by all apicv features. */ @@ -13984,13 +13984,17 @@ static int vmx_get_nested_state(struct kvm_vcpu *vcpu, else if (enable_shadow_vmcs && !vmx->nested.sync_shadow_vmcs) copy_shadow_to_vmcs12(vmx); - if (copy_to_user(user_kvm_nested_state->data, vmcs12, sizeof(*vmcs12))) + /* + * Copy over the full allocated size of vmcs12 rather than just the size + * of the struct. + */ + if (copy_to_user(user_kvm_nested_state->data, vmcs12, VMCS12_SIZE)) return -EFAULT; if (nested_cpu_has_shadow_vmcs(vmcs12) && vmcs12->vmcs_link_pointer != -1ull) { if (copy_to_user(user_kvm_nested_state->data + VMCS12_SIZE, - get_shadow_vmcs12(vcpu), sizeof(*vmcs12))) + get_shadow_vmcs12(vcpu), VMCS12_SIZE)) return -EFAULT; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 956eecd227f8..5a9a3ebe8fba 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6277,8 +6277,7 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu, toggle_interruptibility(vcpu, ctxt->interruptibility); vcpu->arch.emulate_regs_need_sync_to_vcpu = false; kvm_rip_write(vcpu, ctxt->eip); - if (r == EMULATE_DONE && - (ctxt->tf || (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP))) + if (r == EMULATE_DONE && ctxt->tf) kvm_vcpu_do_singlestep(vcpu, &r); if (!ctxt->have_exception || exception_type(ctxt->exception.vector) == EXCPT_TRAP) @@ -6868,10 +6867,10 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu) case KVM_HC_CLOCK_PAIRING: ret = kvm_pv_clock_pairing(vcpu, a0, a1); break; +#endif case KVM_HC_SEND_IPI: ret = kvm_pv_send_ipi(vcpu->kvm, a0, a1, a2, a3, op_64_bit); break; -#endif default: ret = -KVM_ENOSYS; break; diff --git a/arch/x86/lib/kaslr.c b/arch/x86/lib/kaslr.c index 79778ab200e4..a53665116458 100644 --- a/arch/x86/lib/kaslr.c +++ b/arch/x86/lib/kaslr.c @@ -36,8 +36,8 @@ static inline u16 i8254(void) u16 status, timer; do { - outb(I8254_PORT_CONTROL, - I8254_CMD_READBACK | I8254_SELECT_COUNTER0); + outb(I8254_CMD_READBACK | I8254_SELECT_COUNTER0, + I8254_PORT_CONTROL); status = inb(I8254_PORT_COUNTER0); timer = inb(I8254_PORT_COUNTER0); timer |= inb(I8254_PORT_COUNTER0) << 8; diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 75b331f8a16a..ea59c01ce8db 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -391,6 +391,32 @@ static u8 nfit_dsm_revid(unsigned family, unsigned func) return id; } +static int cmd_to_func(struct nfit_mem *nfit_mem, unsigned int cmd, + struct nd_cmd_pkg *call_pkg) +{ + if (call_pkg) { + int i; + + if (nfit_mem->family != call_pkg->nd_family) + return -ENOTTY; + + for (i = 0; i < ARRAY_SIZE(call_pkg->nd_reserved2); i++) + if (call_pkg->nd_reserved2[i]) + return -EINVAL; + return call_pkg->nd_command; + } + + /* Linux ND commands == NVDIMM_FAMILY_INTEL function numbers */ + if (nfit_mem->family == NVDIMM_FAMILY_INTEL) + return cmd; + + /* + * Force function number validation to fail since 0 is never + * published as a valid function in dsm_mask. + */ + return 0; +} + int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, unsigned int cmd, void *buf, unsigned int buf_len, int *cmd_rc) { @@ -404,30 +430,23 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, unsigned long cmd_mask, dsm_mask; u32 offset, fw_status = 0; acpi_handle handle; - unsigned int func; const guid_t *guid; - int rc, i; + int func, rc, i; if (cmd_rc) *cmd_rc = -EINVAL; - func = cmd; - if (cmd == ND_CMD_CALL) { - call_pkg = buf; - func = call_pkg->nd_command; - - for (i = 0; i < ARRAY_SIZE(call_pkg->nd_reserved2); i++) - if (call_pkg->nd_reserved2[i]) - return -EINVAL; - } if (nvdimm) { struct acpi_device *adev = nfit_mem->adev; if (!adev) return -ENOTTY; - if (call_pkg && nfit_mem->family != call_pkg->nd_family) - return -ENOTTY; + if (cmd == ND_CMD_CALL) + call_pkg = buf; + func = cmd_to_func(nfit_mem, cmd, call_pkg); + if (func < 0) + return func; dimm_name = nvdimm_name(nvdimm); cmd_name = nvdimm_cmd_name(cmd); cmd_mask = nvdimm_cmd_mask(nvdimm); @@ -438,6 +457,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, } else { struct acpi_device *adev = to_acpi_dev(acpi_desc); + func = cmd; cmd_name = nvdimm_bus_cmd_name(cmd); cmd_mask = nd_desc->cmd_mask; dsm_mask = cmd_mask; @@ -452,7 +472,13 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, if (!desc || (cmd && (desc->out_num + desc->in_num == 0))) return -ENOTTY; - if (!test_bit(cmd, &cmd_mask) || !test_bit(func, &dsm_mask)) + /* + * Check for a valid command. For ND_CMD_CALL, we also have to + * make sure that the DSM function is supported. + */ + if (cmd == ND_CMD_CALL && !test_bit(func, &dsm_mask)) + return -ENOTTY; + else if (!test_bit(cmd, &cmd_mask)) return -ENOTTY; in_obj.type = ACPI_TYPE_PACKAGE; @@ -1764,6 +1790,13 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc, return 0; } + /* + * Function 0 is the command interrogation function, don't + * export it to potential userspace use, and enable it to be + * used as an error value in acpi_nfit_ctl(). + */ + dsm_mask &= ~1UL; + guid = to_nfit_uuid(nfit_mem->family); for_each_set_bit(i, &dsm_mask, BITS_PER_LONG) if (acpi_check_dsm(adev_dimm->handle, guid, diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c index b5e3103c1175..e43c876a9223 100644 --- a/drivers/char/mwave/mwavedd.c +++ b/drivers/char/mwave/mwavedd.c @@ -59,6 +59,7 @@ #include <linux/mutex.h> #include <linux/delay.h> #include <linux/serial_8250.h> +#include <linux/nospec.h> #include "smapi.h" #include "mwavedd.h" #include "3780i.h" @@ -289,6 +290,8 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd, ipcnum); return -EINVAL; } + ipcnum = array_index_nospec(ipcnum, + ARRAY_SIZE(pDrvData->IPCs)); PRINTK_3(TRACE_MWAVE, "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC" " ipcnum %x entry usIntCount %x\n", @@ -317,6 +320,8 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd, " Invalid ipcnum %x\n", ipcnum); return -EINVAL; } + ipcnum = array_index_nospec(ipcnum, + ARRAY_SIZE(pDrvData->IPCs)); PRINTK_3(TRACE_MWAVE, "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC" " ipcnum %x, usIntCount %x\n", @@ -383,6 +388,8 @@ static long mwave_ioctl(struct file *file, unsigned int iocmd, ipcnum); return -EINVAL; } + ipcnum = array_index_nospec(ipcnum, + ARRAY_SIZE(pDrvData->IPCs)); mutex_lock(&mwave_mutex); if (pDrvData->IPCs[ipcnum].bIsEnabled == true) { pDrvData->IPCs[ipcnum].bIsEnabled = false; diff --git a/drivers/clk/socfpga/clk-pll-s10.c b/drivers/clk/socfpga/clk-pll-s10.c index 2d5d8b43727e..c4d0b6f6abf2 100644 --- a/drivers/clk/socfpga/clk-pll-s10.c +++ b/drivers/clk/socfpga/clk-pll-s10.c @@ -43,7 +43,7 @@ static unsigned long clk_pll_recalc_rate(struct clk_hw *hwclk, /* Read mdiv and fdiv from the fdbck register */ reg = readl(socfpgaclk->hw.reg + 0x4); mdiv = (reg & SOCFPGA_PLL_MDIV_MASK) >> SOCFPGA_PLL_MDIV_SHIFT; - vco_freq = (unsigned long long)parent_rate * (mdiv + 6); + vco_freq = (unsigned long long)vco_freq * (mdiv + 6); return (unsigned long)vco_freq; } diff --git a/drivers/clk/socfpga/clk-s10.c b/drivers/clk/socfpga/clk-s10.c index 5b238fc314ac..8281dfbf38c2 100644 --- a/drivers/clk/socfpga/clk-s10.c +++ b/drivers/clk/socfpga/clk-s10.c @@ -12,17 +12,17 @@ #include "stratix10-clk.h" -static const char * const pll_mux[] = { "osc1", "cb_intosc_hs_div2_clk", - "f2s_free_clk",}; +static const char * const pll_mux[] = { "osc1", "cb-intosc-hs-div2-clk", + "f2s-free-clk",}; static const char * const cntr_mux[] = { "main_pll", "periph_pll", - "osc1", "cb_intosc_hs_div2_clk", - "f2s_free_clk"}; -static const char * const boot_mux[] = { "osc1", "cb_intosc_hs_div2_clk",}; + "osc1", "cb-intosc-hs-div2-clk", + "f2s-free-clk"}; +static const char * const boot_mux[] = { "osc1", "cb-intosc-hs-div2-clk",}; static const char * const noc_free_mux[] = {"main_noc_base_clk", "peri_noc_base_clk", - "osc1", "cb_intosc_hs_div2_clk", - "f2s_free_clk"}; + "osc1", "cb-intosc-hs-div2-clk", + "f2s-free-clk"}; static const char * const emaca_free_mux[] = {"peri_emaca_clk", "boot_clk"}; static const char * const emacb_free_mux[] = {"peri_emacb_clk", "boot_clk"}; @@ -33,14 +33,14 @@ static const char * const s2f_usr1_free_mux[] = {"peri_s2f_usr1_clk", "boot_clk" static const char * const psi_ref_free_mux[] = {"peri_psi_ref_clk", "boot_clk"}; static const char * const mpu_mux[] = { "mpu_free_clk", "boot_clk",}; -static const char * const s2f_usr0_mux[] = {"f2s_free_clk", "boot_clk"}; +static const char * const s2f_usr0_mux[] = {"f2s-free-clk", "boot_clk"}; static const char * const emac_mux[] = {"emaca_free_clk", "emacb_free_clk"}; static const char * const noc_mux[] = {"noc_free_clk", "boot_clk"}; static const char * const mpu_free_mux[] = {"main_mpu_base_clk", "peri_mpu_base_clk", - "osc1", "cb_intosc_hs_div2_clk", - "f2s_free_clk"}; + "osc1", "cb-intosc-hs-div2-clk", + "f2s-free-clk"}; /* clocks in AO (always on) controller */ static const struct stratix10_pll_clock s10_pll_clks[] = { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c index a028661d9e20..92b11de19581 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c @@ -576,6 +576,7 @@ static const struct amdgpu_px_quirk amdgpu_px_quirk_list[] = { { 0x1002, 0x6900, 0x1028, 0x0812, AMDGPU_PX_QUIRK_FORCE_ATPX }, { 0x1002, 0x6900, 0x1028, 0x0813, AMDGPU_PX_QUIRK_FORCE_ATPX }, { 0x1002, 0x6900, 0x1025, 0x125A, AMDGPU_PX_QUIRK_FORCE_ATPX }, + { 0x1002, 0x6900, 0x17AA, 0x3806, AMDGPU_PX_QUIRK_FORCE_ATPX }, { 0, 0, 0, 0, 0 }, }; diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c index 191b314f9e9e..709475d5cc30 100644 --- a/drivers/gpu/drm/meson/meson_crtc.c +++ b/drivers/gpu/drm/meson/meson_crtc.c @@ -45,7 +45,6 @@ struct meson_crtc { struct drm_crtc base; struct drm_pending_vblank_event *event; struct meson_drm *priv; - bool enabled; }; #define to_meson_crtc(x) container_of(x, struct meson_crtc, base) @@ -81,7 +80,8 @@ static const struct drm_crtc_funcs meson_crtc_funcs = { }; -static void meson_crtc_enable(struct drm_crtc *crtc) +static void meson_crtc_atomic_enable(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) { struct meson_crtc *meson_crtc = to_meson_crtc(crtc); struct drm_crtc_state *crtc_state = crtc->state; @@ -103,20 +103,6 @@ static void meson_crtc_enable(struct drm_crtc *crtc) drm_crtc_vblank_on(crtc); - meson_crtc->enabled = true; -} - -static void meson_crtc_atomic_enable(struct drm_crtc *crtc, - struct drm_crtc_state *old_state) -{ - struct meson_crtc *meson_crtc = to_meson_crtc(crtc); - struct meson_drm *priv = meson_crtc->priv; - - DRM_DEBUG_DRIVER("\n"); - - if (!meson_crtc->enabled) - meson_crtc_enable(crtc); - priv->viu.osd1_enabled = true; } @@ -142,8 +128,6 @@ static void meson_crtc_atomic_disable(struct drm_crtc *crtc, crtc->state->event = NULL; } - - meson_crtc->enabled = false; } static void meson_crtc_atomic_begin(struct drm_crtc *crtc, @@ -152,9 +136,6 @@ static void meson_crtc_atomic_begin(struct drm_crtc *crtc, struct meson_crtc *meson_crtc = to_meson_crtc(crtc); unsigned long flags; - if (crtc->state->enable && !meson_crtc->enabled) - meson_crtc_enable(crtc); - if (crtc->state->event) { WARN_ON(drm_crtc_vblank_get(crtc) != 0); diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index d3443125e661..bf5f294f172f 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -82,6 +82,10 @@ static const struct drm_mode_config_funcs meson_mode_config_funcs = { .fb_create = drm_gem_fb_create, }; +static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = { + .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm, +}; + static irqreturn_t meson_irq(int irq, void *arg) { struct drm_device *dev = arg; @@ -246,6 +250,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) drm->mode_config.max_width = 3840; drm->mode_config.max_height = 2160; drm->mode_config.funcs = &meson_mode_config_funcs; + drm->mode_config.helper_private = &meson_mode_config_helpers; /* Hardware Initialization */ diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index b1b788082793..d2a735ac9ba1 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -888,12 +888,14 @@ static unsigned long handle_pg_range(unsigned long pg_start, pfn_cnt -= pgs_ol; /* * Check if the corresponding memory block is already - * online by checking its last previously backed page. - * In case it is we need to bring rest (which was not - * backed previously) online too. + * online. It is possible to observe struct pages still + * being uninitialized here so check section instead. + * In case the section is online we need to bring the + * rest of pfns (which were not backed previously) + * online too. */ if (start_pfn > has->start_pfn && - !PageReserved(pfn_to_page(start_pfn - 1))) + online_section_nr(pfn_to_section_nr(start_pfn))) hv_bring_pgs_online(has, start_pfn, pgs_ol); } diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c index 3e90eb91db45..6cb45f256107 100644 --- a/drivers/hv/ring_buffer.c +++ b/drivers/hv/ring_buffer.c @@ -164,26 +164,25 @@ hv_get_ringbuffer_availbytes(const struct hv_ring_buffer_info *rbi, } /* Get various debug metrics for the specified ring buffer. */ -void hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info, - struct hv_ring_buffer_debug_info *debug_info) +int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info, + struct hv_ring_buffer_debug_info *debug_info) { u32 bytes_avail_towrite; u32 bytes_avail_toread; - if (ring_info->ring_buffer) { - hv_get_ringbuffer_availbytes(ring_info, - &bytes_avail_toread, - &bytes_avail_towrite); - - debug_info->bytes_avail_toread = bytes_avail_toread; - debug_info->bytes_avail_towrite = bytes_avail_towrite; - debug_info->current_read_index = - ring_info->ring_buffer->read_index; - debug_info->current_write_index = - ring_info->ring_buffer->write_index; - debug_info->current_interrupt_mask = - ring_info->ring_buffer->interrupt_mask; - } + if (!ring_info->ring_buffer) + return -EINVAL; + + hv_get_ringbuffer_availbytes(ring_info, + &bytes_avail_toread, + &bytes_avail_towrite); + debug_info->bytes_avail_toread = bytes_avail_toread; + debug_info->bytes_avail_towrite = bytes_avail_towrite; + debug_info->current_read_index = ring_info->ring_buffer->read_index; + debug_info->current_write_index = ring_info->ring_buffer->write_index; + debug_info->current_interrupt_mask + = ring_info->ring_buffer->interrupt_mask; + return 0; } EXPORT_SYMBOL_GPL(hv_ringbuffer_get_debuginfo); diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 2c6d5c7a4445..9aa18f387a34 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -313,12 +313,16 @@ static ssize_t out_intr_mask_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info outbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, + &outbound); + if (ret < 0) + return ret; + return sprintf(buf, "%d\n", outbound.current_interrupt_mask); } static DEVICE_ATTR_RO(out_intr_mask); @@ -328,12 +332,15 @@ static ssize_t out_read_index_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info outbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, + &outbound); + if (ret < 0) + return ret; return sprintf(buf, "%d\n", outbound.current_read_index); } static DEVICE_ATTR_RO(out_read_index); @@ -344,12 +351,15 @@ static ssize_t out_write_index_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info outbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, + &outbound); + if (ret < 0) + return ret; return sprintf(buf, "%d\n", outbound.current_write_index); } static DEVICE_ATTR_RO(out_write_index); @@ -360,12 +370,15 @@ static ssize_t out_read_bytes_avail_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info outbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, + &outbound); + if (ret < 0) + return ret; return sprintf(buf, "%d\n", outbound.bytes_avail_toread); } static DEVICE_ATTR_RO(out_read_bytes_avail); @@ -376,12 +389,15 @@ static ssize_t out_write_bytes_avail_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info outbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, + &outbound); + if (ret < 0) + return ret; return sprintf(buf, "%d\n", outbound.bytes_avail_towrite); } static DEVICE_ATTR_RO(out_write_bytes_avail); @@ -391,12 +407,15 @@ static ssize_t in_intr_mask_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info inbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + if (ret < 0) + return ret; + return sprintf(buf, "%d\n", inbound.current_interrupt_mask); } static DEVICE_ATTR_RO(in_intr_mask); @@ -406,12 +425,15 @@ static ssize_t in_read_index_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info inbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + if (ret < 0) + return ret; + return sprintf(buf, "%d\n", inbound.current_read_index); } static DEVICE_ATTR_RO(in_read_index); @@ -421,12 +443,15 @@ static ssize_t in_write_index_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info inbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + if (ret < 0) + return ret; + return sprintf(buf, "%d\n", inbound.current_write_index); } static DEVICE_ATTR_RO(in_write_index); @@ -437,12 +462,15 @@ static ssize_t in_read_bytes_avail_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info inbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + if (ret < 0) + return ret; + return sprintf(buf, "%d\n", inbound.bytes_avail_toread); } static DEVICE_ATTR_RO(in_read_bytes_avail); @@ -453,12 +481,15 @@ static ssize_t in_write_bytes_avail_show(struct device *dev, { struct hv_device *hv_dev = device_to_hv_device(dev); struct hv_ring_buffer_debug_info inbound; + int ret; if (!hv_dev->channel) return -ENODEV; - if (hv_dev->channel->state != CHANNEL_OPENED_STATE) - return -EINVAL; - hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + + ret = hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + if (ret < 0) + return ret; + return sprintf(buf, "%d\n", inbound.bytes_avail_towrite); } static DEVICE_ATTR_RO(in_write_bytes_avail); diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index 45c997430332..0e51803de0e7 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -544,7 +544,7 @@ void ide_proc_port_register_devices(ide_hwif_t *hwif) drive->proc = proc_mkdir(drive->name, parent); if (drive->proc) { ide_add_proc_entries(drive->proc, generic_drive_entries, drive); - proc_create_data("setting", S_IFREG|S_IRUSR|S_IWUSR, + proc_create_data("settings", S_IFREG|S_IRUSR|S_IWUSR, drive->proc, &ide_settings_proc_fops, drive); } diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index cfc8b94527b9..aa4e431cbcd3 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -252,6 +252,8 @@ static const struct xpad_device { { 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX }, { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX }, { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX }, + { 0x1038, 0x1430, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 }, + { 0x1038, 0x1431, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 }, { 0x11c9, 0x55f0, "Nacon GC-100XF", 0, XTYPE_XBOX360 }, { 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 }, { 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 }, @@ -428,6 +430,7 @@ static const struct usb_device_id xpad_table[] = { XPAD_XBOXONE_VENDOR(0x0e6f), /* 0x0e6f X-Box One controllers */ XPAD_XBOX360_VENDOR(0x0f0d), /* Hori Controllers */ XPAD_XBOXONE_VENDOR(0x0f0d), /* Hori Controllers */ + XPAD_XBOX360_VENDOR(0x1038), /* SteelSeries Controllers */ XPAD_XBOX360_VENDOR(0x11c9), /* Nacon GC100XF */ XPAD_XBOX360_VENDOR(0x12ab), /* X-Box 360 dance pads */ XPAD_XBOX360_VENDOR(0x1430), /* RedOctane X-Box 360 controllers */ diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 8ec483e8688b..26ec603fe220 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -39,6 +39,7 @@ #include <linux/init.h> #include <linux/fs.h> #include <linux/miscdevice.h> +#include <linux/overflow.h> #include <linux/input/mt.h> #include "../input-compat.h" @@ -405,7 +406,7 @@ static int uinput_open(struct inode *inode, struct file *file) static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code, const struct input_absinfo *abs) { - int min, max; + int min, max, range; min = abs->minimum; max = abs->maximum; @@ -417,7 +418,7 @@ static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code, return -EINVAL; } - if (abs->flat > max - min) { + if (!check_sub_overflow(max, min, &range) && abs->flat > range) { printk(KERN_DEBUG "%s: abs_flat #%02x out of range: %d (min:%d/max:%d)\n", UINPUT_NAME, code, abs->flat, min, max); diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index c2df341ff6fa..cf3abb8d284f 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -2267,13 +2267,14 @@ static void its_free_device(struct its_device *its_dev) kfree(its_dev); } -static int its_alloc_device_irq(struct its_device *dev, irq_hw_number_t *hwirq) +static int its_alloc_device_irq(struct its_device *dev, int nvecs, irq_hw_number_t *hwirq) { int idx; - idx = find_first_zero_bit(dev->event_map.lpi_map, - dev->event_map.nr_lpis); - if (idx == dev->event_map.nr_lpis) + idx = bitmap_find_free_region(dev->event_map.lpi_map, + dev->event_map.nr_lpis, + get_count_order(nvecs)); + if (idx < 0) return -ENOSPC; *hwirq = dev->event_map.lpi_base + idx; @@ -2369,21 +2370,21 @@ static int its_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, int err; int i; - for (i = 0; i < nr_irqs; i++) { - err = its_alloc_device_irq(its_dev, &hwirq); - if (err) - return err; + err = its_alloc_device_irq(its_dev, nr_irqs, &hwirq); + if (err) + return err; - err = its_irq_gic_domain_alloc(domain, virq + i, hwirq); + for (i = 0; i < nr_irqs; i++) { + err = its_irq_gic_domain_alloc(domain, virq + i, hwirq + i); if (err) return err; irq_domain_set_hwirq_and_chip(domain, virq + i, - hwirq, &its_irq_chip, its_dev); + hwirq + i, &its_irq_chip, its_dev); irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(virq + i))); pr_debug("ID:%d pID:%d vID:%d\n", - (int)(hwirq - its_dev->event_map.lpi_base), - (int) hwirq, virq + i); + (int)(hwirq + i - its_dev->event_map.lpi_base), + (int)(hwirq + i), virq + i); } return 0; diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index f2ec882f96be..5921ecc670c1 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -2405,9 +2405,21 @@ static int crypt_ctr_cipher_new(struct dm_target *ti, char *cipher_in, char *key * capi:cipher_api_spec-iv:ivopts */ tmp = &cipher_in[strlen("capi:")]; - cipher_api = strsep(&tmp, "-"); - *ivmode = strsep(&tmp, ":"); - *ivopts = tmp; + + /* Separate IV options if present, it can contain another '-' in hash name */ + *ivopts = strrchr(tmp, ':'); + if (*ivopts) { + **ivopts = '\0'; + (*ivopts)++; + } + /* Parse IV mode */ + *ivmode = strrchr(tmp, '-'); + if (*ivmode) { + **ivmode = '\0'; + (*ivmode)++; + } + /* The rest is crypto API spec */ + cipher_api = tmp; if (*ivmode && !strcmp(*ivmode, "lmk")) cc->tfms_count = 64; @@ -2477,11 +2489,8 @@ static int crypt_ctr_cipher_old(struct dm_target *ti, char *cipher_in, char *key goto bad_mem; chainmode = strsep(&tmp, "-"); - *ivopts = strsep(&tmp, "-"); - *ivmode = strsep(&*ivopts, ":"); - - if (tmp) - DMWARN("Ignoring unexpected additional cipher options"); + *ivmode = strsep(&tmp, ":"); + *ivopts = tmp; /* * For compatibility with the original dm-crypt mapping format, if diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 20b0776e39ef..ed3caceaed07 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -1678,7 +1678,7 @@ int dm_thin_remove_range(struct dm_thin_device *td, return r; } -int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *result) +int dm_pool_block_is_shared(struct dm_pool_metadata *pmd, dm_block_t b, bool *result) { int r; uint32_t ref_count; @@ -1686,7 +1686,7 @@ int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *resu down_read(&pmd->root_lock); r = dm_sm_get_count(pmd->data_sm, b, &ref_count); if (!r) - *result = (ref_count != 0); + *result = (ref_count > 1); up_read(&pmd->root_lock); return r; diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h index 35e954ea20a9..f6be0d733c20 100644 --- a/drivers/md/dm-thin-metadata.h +++ b/drivers/md/dm-thin-metadata.h @@ -195,7 +195,7 @@ int dm_pool_get_metadata_dev_size(struct dm_pool_metadata *pmd, int dm_pool_get_data_dev_size(struct dm_pool_metadata *pmd, dm_block_t *result); -int dm_pool_block_is_used(struct dm_pool_metadata *pmd, dm_block_t b, bool *result); +int dm_pool_block_is_shared(struct dm_pool_metadata *pmd, dm_block_t b, bool *result); int dm_pool_inc_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e); int dm_pool_dec_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e); diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 1f225a1e08dd..c30a7850b2da 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -1048,7 +1048,7 @@ static void passdown_double_checking_shared_status(struct dm_thin_new_mapping *m * passdown we have to check that these blocks are now unused. */ int r = 0; - bool used = true; + bool shared = true; struct thin_c *tc = m->tc; struct pool *pool = tc->pool; dm_block_t b = m->data_block, e, end = m->data_block + m->virt_end - m->virt_begin; @@ -1058,11 +1058,11 @@ static void passdown_double_checking_shared_status(struct dm_thin_new_mapping *m while (b != end) { /* find start of unmapped run */ for (; b < end; b++) { - r = dm_pool_block_is_used(pool->pmd, b, &used); + r = dm_pool_block_is_shared(pool->pmd, b, &shared); if (r) goto out; - if (!used) + if (!shared) break; } @@ -1071,11 +1071,11 @@ static void passdown_double_checking_shared_status(struct dm_thin_new_mapping *m /* find end of run */ for (e = b + 1; e != end; e++) { - r = dm_pool_block_is_used(pool->pmd, e, &used); + r = dm_pool_block_is_shared(pool->pmd, e, &shared); if (r) goto out; - if (used) + if (shared) break; } diff --git a/drivers/misc/ibmvmc.c b/drivers/misc/ibmvmc.c index b8aaa684c397..2ed23c99f59f 100644 --- a/drivers/misc/ibmvmc.c +++ b/drivers/misc/ibmvmc.c @@ -820,21 +820,24 @@ static int ibmvmc_send_msg(struct crq_server_adapter *adapter, * * Return: * 0 - Success + * Non-zero - Failure */ static int ibmvmc_open(struct inode *inode, struct file *file) { struct ibmvmc_file_session *session; - int rc = 0; pr_debug("%s: inode = 0x%lx, file = 0x%lx, state = 0x%x\n", __func__, (unsigned long)inode, (unsigned long)file, ibmvmc.state); session = kzalloc(sizeof(*session), GFP_KERNEL); + if (!session) + return -ENOMEM; + session->file = file; file->private_data = session; - return rc; + return 0; } /** diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h index e4b10b2d1a08..23739a60517f 100644 --- a/drivers/misc/mei/hw-me-regs.h +++ b/drivers/misc/mei/hw-me-regs.h @@ -127,6 +127,8 @@ #define MEI_DEV_ID_BXT_M 0x1A9A /* Broxton M */ #define MEI_DEV_ID_APL_I 0x5A9A /* Apollo Lake I */ +#define MEI_DEV_ID_DNV_IE 0x19E5 /* Denverton IE */ + #define MEI_DEV_ID_GLK 0x319A /* Gemini Lake */ #define MEI_DEV_ID_KBP 0xA2BA /* Kaby Point */ diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index ea4e152270a3..c8e21c894a5f 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -88,11 +88,13 @@ static const struct pci_device_id mei_me_pci_tbl[] = { {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, MEI_ME_PCH8_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, MEI_ME_PCH8_SPS_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, MEI_ME_PCH8_SPS_CFG)}, - {MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH8_CFG)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH12_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, MEI_ME_PCH8_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, MEI_ME_PCH8_CFG)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_DNV_IE, MEI_ME_PCH8_CFG)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_GLK, MEI_ME_PCH8_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_KBP, MEI_ME_PCH8_CFG)}, diff --git a/drivers/mmc/host/dw_mmc-bluefield.c b/drivers/mmc/host/dw_mmc-bluefield.c index 54c3fbb4a391..db56d4f58aaa 100644 --- a/drivers/mmc/host/dw_mmc-bluefield.c +++ b/drivers/mmc/host/dw_mmc-bluefield.c @@ -1,11 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2018 Mellanox Technologies. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #include <linux/bitfield.h> diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c index c201c378537e..ef9deaa361c7 100644 --- a/drivers/mmc/host/meson-gx-mmc.c +++ b/drivers/mmc/host/meson-gx-mmc.c @@ -174,6 +174,8 @@ struct meson_host { struct sd_emmc_desc *descs; dma_addr_t descs_dma_addr; + int irq; + bool vqmmc_enabled; }; @@ -1181,7 +1183,7 @@ static int meson_mmc_probe(struct platform_device *pdev) struct resource *res; struct meson_host *host; struct mmc_host *mmc; - int ret, irq; + int ret; mmc = mmc_alloc_host(sizeof(struct meson_host), &pdev->dev); if (!mmc) @@ -1228,8 +1230,8 @@ static int meson_mmc_probe(struct platform_device *pdev) goto free_host; } - irq = platform_get_irq(pdev, 0); - if (irq <= 0) { + host->irq = platform_get_irq(pdev, 0); + if (host->irq <= 0) { dev_err(&pdev->dev, "failed to get interrupt resource.\n"); ret = -EINVAL; goto free_host; @@ -1283,9 +1285,8 @@ static int meson_mmc_probe(struct platform_device *pdev) writel(IRQ_CRC_ERR | IRQ_TIMEOUTS | IRQ_END_OF_CHAIN, host->regs + SD_EMMC_IRQ_EN); - ret = devm_request_threaded_irq(&pdev->dev, irq, meson_mmc_irq, - meson_mmc_irq_thread, IRQF_SHARED, - NULL, host); + ret = request_threaded_irq(host->irq, meson_mmc_irq, + meson_mmc_irq_thread, IRQF_SHARED, NULL, host); if (ret) goto err_init_clk; @@ -1303,7 +1304,7 @@ static int meson_mmc_probe(struct platform_device *pdev) if (host->bounce_buf == NULL) { dev_err(host->dev, "Unable to map allocate DMA bounce buffer.\n"); ret = -ENOMEM; - goto err_init_clk; + goto err_free_irq; } host->descs = dma_alloc_coherent(host->dev, SD_EMMC_DESC_BUF_LEN, @@ -1322,6 +1323,8 @@ static int meson_mmc_probe(struct platform_device *pdev) err_bounce_buf: dma_free_coherent(host->dev, host->bounce_buf_size, host->bounce_buf, host->bounce_dma_addr); +err_free_irq: + free_irq(host->irq, host); err_init_clk: clk_disable_unprepare(host->mmc_clk); err_core_clk: @@ -1339,6 +1342,7 @@ static int meson_mmc_remove(struct platform_device *pdev) /* disable interrupts */ writel(0, host->regs + SD_EMMC_IRQ_EN); + free_irq(host->irq, host); dma_free_coherent(host->dev, SD_EMMC_DESC_BUF_LEN, host->descs, host->descs_dma_addr); diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 3b3f88ffab53..c05e4d50d43d 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -480,8 +480,6 @@ EXPORT_SYMBOL_GPL(can_put_echo_skb); struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx, u8 *len_ptr) { struct can_priv *priv = netdev_priv(dev); - struct sk_buff *skb = priv->echo_skb[idx]; - struct canfd_frame *cf; if (idx >= priv->echo_skb_max) { netdev_err(dev, "%s: BUG! Trying to access can_priv::echo_skb out of bounds (%u/max %u)\n", @@ -489,20 +487,21 @@ struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx, u8 return NULL; } - if (!skb) { - netdev_err(dev, "%s: BUG! Trying to echo non existing skb: can_priv::echo_skb[%u]\n", - __func__, idx); - return NULL; - } + if (priv->echo_skb[idx]) { + /* Using "struct canfd_frame::len" for the frame + * length is supported on both CAN and CANFD frames. + */ + struct sk_buff *skb = priv->echo_skb[idx]; + struct canfd_frame *cf = (struct canfd_frame *)skb->data; + u8 len = cf->len; - /* Using "struct canfd_frame::len" for the frame - * length is supported on both CAN and CANFD frames. - */ - cf = (struct canfd_frame *)skb->data; - *len_ptr = cf->len; - priv->echo_skb[idx] = NULL; + *len_ptr = len; + priv->echo_skb[idx] = NULL; - return skb; + return skb; + } + + return NULL; } /* diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 75ce11395ee8..ae219b8a7754 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -1004,7 +1004,7 @@ static int flexcan_chip_start(struct net_device *dev) } } else { /* clear and invalidate unused mailboxes first */ - for (i = FLEXCAN_TX_MB_RESERVED_OFF_FIFO; i <= ARRAY_SIZE(regs->mb); i++) { + for (i = FLEXCAN_TX_MB_RESERVED_OFF_FIFO; i < ARRAY_SIZE(regs->mb); i++) { priv->write(FLEXCAN_MB_CODE_RX_INACTIVE, ®s->mb[i].can_ctrl); } diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h index d272dc6984ac..b40d4377cc71 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h +++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h @@ -431,8 +431,6 @@ #define MAC_MDIOSCAR_PA_WIDTH 5 #define MAC_MDIOSCAR_RA_INDEX 0 #define MAC_MDIOSCAR_RA_WIDTH 16 -#define MAC_MDIOSCAR_REG_INDEX 0 -#define MAC_MDIOSCAR_REG_WIDTH 21 #define MAC_MDIOSCCDR_BUSY_INDEX 22 #define MAC_MDIOSCCDR_BUSY_WIDTH 1 #define MAC_MDIOSCCDR_CMD_INDEX 16 diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c index 1e929a1e4ca7..4666084eda16 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c @@ -1284,6 +1284,20 @@ static void xgbe_write_mmd_regs(struct xgbe_prv_data *pdata, int prtad, } } +static unsigned int xgbe_create_mdio_sca(int port, int reg) +{ + unsigned int mdio_sca, da; + + da = (reg & MII_ADDR_C45) ? reg >> 16 : 0; + + mdio_sca = 0; + XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, RA, reg); + XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, PA, port); + XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, da); + + return mdio_sca; +} + static int xgbe_write_ext_mii_regs(struct xgbe_prv_data *pdata, int addr, int reg, u16 val) { @@ -1291,9 +1305,7 @@ static int xgbe_write_ext_mii_regs(struct xgbe_prv_data *pdata, int addr, reinit_completion(&pdata->mdio_complete); - mdio_sca = 0; - XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, REG, reg); - XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, addr); + mdio_sca = xgbe_create_mdio_sca(addr, reg); XGMAC_IOWRITE(pdata, MAC_MDIOSCAR, mdio_sca); mdio_sccd = 0; @@ -1317,9 +1329,7 @@ static int xgbe_read_ext_mii_regs(struct xgbe_prv_data *pdata, int addr, reinit_completion(&pdata->mdio_complete); - mdio_sca = 0; - XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, REG, reg); - XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, addr); + mdio_sca = xgbe_create_mdio_sca(addr, reg); XGMAC_IOWRITE(pdata, MAC_MDIOSCAR, mdio_sca); mdio_sccd = 0; diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c index 5890fdfd62c3..c7901a3f2a79 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci.c +++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c @@ -604,29 +604,31 @@ static void mlxsw_pci_cq_tasklet(unsigned long data) u16 wqe_counter = mlxsw_pci_cqe_wqe_counter_get(cqe); u8 sendq = mlxsw_pci_cqe_sr_get(q->u.cq.v, cqe); u8 dqn = mlxsw_pci_cqe_dqn_get(q->u.cq.v, cqe); + char ncqe[MLXSW_PCI_CQE_SIZE_MAX]; + + memcpy(ncqe, cqe, q->elem_size); + mlxsw_pci_queue_doorbell_consumer_ring(mlxsw_pci, q); if (sendq) { struct mlxsw_pci_queue *sdq; sdq = mlxsw_pci_sdq_get(mlxsw_pci, dqn); mlxsw_pci_cqe_sdq_handle(mlxsw_pci, sdq, - wqe_counter, cqe); + wqe_counter, ncqe); q->u.cq.comp_sdq_count++; } else { struct mlxsw_pci_queue *rdq; rdq = mlxsw_pci_rdq_get(mlxsw_pci, dqn); mlxsw_pci_cqe_rdq_handle(mlxsw_pci, rdq, - wqe_counter, q->u.cq.v, cqe); + wqe_counter, q->u.cq.v, ncqe); q->u.cq.comp_rdq_count++; } if (++items == credits) break; } - if (items) { - mlxsw_pci_queue_doorbell_consumer_ring(mlxsw_pci, q); + if (items) mlxsw_pci_queue_doorbell_arm_consumer_ring(mlxsw_pci, q); - } } static u16 mlxsw_pci_cq_elem_count(const struct mlxsw_pci_queue *q) diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h b/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h index 83f452b7ccbb..72cdaa01d56d 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h +++ b/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h @@ -27,7 +27,7 @@ #define MLXSW_PCI_SW_RESET 0xF0010 #define MLXSW_PCI_SW_RESET_RST_BIT BIT(0) -#define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS 5000 +#define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS 13000 #define MLXSW_PCI_SW_RESET_WAIT_MSECS 100 #define MLXSW_PCI_FW_READY 0xA1844 #define MLXSW_PCI_FW_READY_MASK 0xFFFF @@ -53,6 +53,7 @@ #define MLXSW_PCI_WQE_SIZE 32 /* 32 bytes per element */ #define MLXSW_PCI_CQE01_SIZE 16 /* 16 bytes per element */ #define MLXSW_PCI_CQE2_SIZE 32 /* 32 bytes per element */ +#define MLXSW_PCI_CQE_SIZE_MAX MLXSW_PCI_CQE2_SIZE #define MLXSW_PCI_EQE_SIZE 16 /* 16 bytes per element */ #define MLXSW_PCI_WQE_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_WQE_SIZE) #define MLXSW_PCI_CQE01_COUNT (MLXSW_PCI_AQ_SIZE / MLXSW_PCI_CQE01_SIZE) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c index 715d24ff937e..562c4429eec7 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c @@ -696,8 +696,8 @@ static const struct mlxsw_sp_fid_ops mlxsw_sp_fid_dummy_ops = { static const struct mlxsw_sp_fid_family mlxsw_sp_fid_dummy_family = { .type = MLXSW_SP_FID_TYPE_DUMMY, .fid_size = sizeof(struct mlxsw_sp_fid), - .start_index = MLXSW_SP_RFID_BASE - 1, - .end_index = MLXSW_SP_RFID_BASE - 1, + .start_index = VLAN_N_VID - 1, + .end_index = VLAN_N_VID - 1, .ops = &mlxsw_sp_fid_dummy_ops, }; diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c index 9020b084b953..7ec4eb74fe21 100644 --- a/drivers/net/ethernet/sun/cassini.c +++ b/drivers/net/ethernet/sun/cassini.c @@ -1,22 +1,9 @@ -// SPDX-License-Identifier: GPL-2.0 +// SPDX-License-Identifier: GPL-2.0+ /* cassini.c: Sun Microsystems Cassini(+) ethernet driver. * * Copyright (C) 2004 Sun Microsystems Inc. * Copyright (C) 2003 Adrian Sun (asun@xxxxxxxxxxxxxxxxx) * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - * * This driver uses the sungem driver (c) David Miller * (davem@xxxxxxxxxx) as its basis. * diff --git a/drivers/net/ethernet/sun/cassini.h b/drivers/net/ethernet/sun/cassini.h index 13f3860496a8..ae5f05f03f88 100644 --- a/drivers/net/ethernet/sun/cassini.h +++ b/drivers/net/ethernet/sun/cassini.h @@ -1,23 +1,10 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: GPL-2.0+ */ /* $Id: cassini.h,v 1.16 2004/08/17 21:15:16 zaumen Exp $ * cassini.h: Definitions for Sun Microsystems Cassini(+) ethernet driver. * * Copyright (C) 2004 Sun Microsystems Inc. * Copyright (c) 2003 Adrian Sun (asun@xxxxxxxxxxxxxxxxx) * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - * * vendor id: 0x108E (Sun Microsystems, Inc.) * device id: 0xabba (Cassini) * revision ids: 0x01 = Cassini diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index f7c69ca34056..d71be15c8c69 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -1063,6 +1063,39 @@ static int m88e1145_config_init(struct phy_device *phydev) return 0; } +/* The VOD can be out of specification on link up. Poke an + * undocumented register, in an undocumented page, with a magic value + * to fix this. + */ +static int m88e6390_errata(struct phy_device *phydev) +{ + int err; + + err = phy_write(phydev, MII_BMCR, + BMCR_ANENABLE | BMCR_SPEED1000 | BMCR_FULLDPLX); + if (err) + return err; + + usleep_range(300, 400); + + err = phy_write_paged(phydev, 0xf8, 0x08, 0x36); + if (err) + return err; + + return genphy_soft_reset(phydev); +} + +static int m88e6390_config_aneg(struct phy_device *phydev) +{ + int err; + + err = m88e6390_errata(phydev); + if (err) + return err; + + return m88e1510_config_aneg(phydev); +} + /** * fiber_lpa_to_ethtool_lpa_t * @lpa: value of the MII_LPA register for fiber link @@ -1418,7 +1451,7 @@ static int m88e1318_set_wol(struct phy_device *phydev, * before enabling it if !phy_interrupt_is_valid() */ if (!phy_interrupt_is_valid(phydev)) - phy_read(phydev, MII_M1011_IEVENT); + __phy_read(phydev, MII_M1011_IEVENT); /* Enable the WOL interrupt */ err = __phy_modify(phydev, MII_88E1318S_PHY_CSIER, 0, @@ -2313,7 +2346,7 @@ static struct phy_driver marvell_drivers[] = { .flags = PHY_HAS_INTERRUPT, .probe = m88e6390_probe, .config_init = &marvell_config_init, - .config_aneg = &m88e1510_config_aneg, + .config_aneg = &m88e6390_config_aneg, .read_status = &marvell_read_status, .ack_interrupt = &marvell_ack_interrupt, .config_intr = &marvell_config_intr, diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 98f4b1f706df..15c5586d74ff 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -391,6 +391,7 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner) if (IS_ERR(gpiod)) { dev_err(&bus->dev, "mii_bus %s couldn't get reset GPIO\n", bus->id); + device_del(&bus->dev); return PTR_ERR(gpiod); } else if (gpiod) { bus->reset_gpiod = gpiod; diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index 62dc564b251d..f22639f0116a 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -445,6 +445,7 @@ static int pppoe_rcv(struct sk_buff *skb, struct net_device *dev, if (pskb_trim_rcsum(skb, len)) goto drop; + ph = pppoe_hdr(skb); pn = pppoe_pernet(dev_net(dev)); /* Note that get_item does a sock_hold(), so sk_pppox(po) diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c index e57f3902beb3..08f997a390d5 100644 --- a/drivers/nvme/target/rdma.c +++ b/drivers/nvme/target/rdma.c @@ -139,6 +139,10 @@ static void nvmet_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc); static void nvmet_rdma_read_data_done(struct ib_cq *cq, struct ib_wc *wc); static void nvmet_rdma_qp_event(struct ib_event *event, void *priv); static void nvmet_rdma_queue_disconnect(struct nvmet_rdma_queue *queue); +static void nvmet_rdma_free_rsp(struct nvmet_rdma_device *ndev, + struct nvmet_rdma_rsp *r); +static int nvmet_rdma_alloc_rsp(struct nvmet_rdma_device *ndev, + struct nvmet_rdma_rsp *r); static const struct nvmet_fabrics_ops nvmet_rdma_ops; @@ -182,9 +186,17 @@ nvmet_rdma_get_rsp(struct nvmet_rdma_queue *queue) spin_unlock_irqrestore(&queue->rsps_lock, flags); if (unlikely(!rsp)) { - rsp = kmalloc(sizeof(*rsp), GFP_KERNEL); + int ret; + + rsp = kzalloc(sizeof(*rsp), GFP_KERNEL); if (unlikely(!rsp)) return NULL; + ret = nvmet_rdma_alloc_rsp(queue->dev, rsp); + if (unlikely(ret)) { + kfree(rsp); + return NULL; + } + rsp->allocated = true; } @@ -196,7 +208,8 @@ nvmet_rdma_put_rsp(struct nvmet_rdma_rsp *rsp) { unsigned long flags; - if (rsp->allocated) { + if (unlikely(rsp->allocated)) { + nvmet_rdma_free_rsp(rsp->queue->dev, rsp); kfree(rsp); return; } diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c index 194ffd5c8580..039b2074db7e 100644 --- a/drivers/s390/char/sclp_config.c +++ b/drivers/s390/char/sclp_config.c @@ -60,7 +60,9 @@ static void sclp_cpu_capability_notify(struct work_struct *work) static void __ref sclp_cpu_change_notify(struct work_struct *work) { + lock_device_hotplug(); smp_rescan_cpus(); + unlock_device_hotplug(); } static void sclp_conf_receiver_fn(struct evbuf_header *evbuf) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 0b81d9d03357..12ddb5928a73 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -109,13 +109,19 @@ int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len, const char *prefix) { - u8 *regs; + u32 *regs; + size_t pos; + + if (offset % 4 != 0 || len % 4 != 0) /* keep readl happy */ + return -EINVAL; regs = kzalloc(len, GFP_KERNEL); if (!regs) return -ENOMEM; - memcpy_fromio(regs, hba->mmio_base + offset, len); + for (pos = 0; pos < len; pos += 4) + regs[pos / 4] = ufshcd_readl(hba, offset + pos); + ufshcd_hex_dump(prefix, regs, len); kfree(regs); diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c index 28cbd6b3d26c..dfee6985efa6 100644 --- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c +++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c @@ -35,6 +35,7 @@ static const struct usb_device_id rtw_usb_id_tbl[] = { {USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */ {USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */ {USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */ + {USB_DEVICE(0x2001, 0x331B)}, /* D-Link DWA-121 rev B1 */ {USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */ {USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */ {USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill RNX-N150NUB */ diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c index dabb391909aa..bb63519db7ae 100644 --- a/drivers/tty/n_hdlc.c +++ b/drivers/tty/n_hdlc.c @@ -597,6 +597,7 @@ static ssize_t n_hdlc_tty_read(struct tty_struct *tty, struct file *file, /* too large for caller's buffer */ ret = -EOVERFLOW; } else { + __set_current_state(TASK_RUNNING); if (copy_to_user(buf, rbuf->buf, rbuf->count)) ret = -EFAULT; else diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index ad126f51d549..7fe679413188 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -550,10 +550,12 @@ static int uart_put_char(struct tty_struct *tty, unsigned char c) int ret = 0; circ = &state->xmit; - if (!circ->buf) + port = uart_port_lock(state, flags); + if (!circ->buf) { + uart_port_unlock(port, flags); return 0; + } - port = uart_port_lock(state, flags); if (port && uart_circ_chars_free(circ) != 0) { circ->buf[circ->head] = c; circ->head = (circ->head + 1) & (UART_XMIT_SIZE - 1); @@ -586,11 +588,13 @@ static int uart_write(struct tty_struct *tty, return -EL3HLT; } + port = uart_port_lock(state, flags); circ = &state->xmit; - if (!circ->buf) + if (!circ->buf) { + uart_port_unlock(port, flags); return 0; + } - port = uart_port_lock(state, flags); while (port) { c = CIRC_SPACE_TO_END(circ->head, circ->tail, UART_XMIT_SIZE); if (count < c) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 052ec16a4e84..e7d192ebecd7 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -2188,7 +2188,8 @@ static int tiocsti(struct tty_struct *tty, char __user *p) ld = tty_ldisc_ref_wait(tty); if (!ld) return -EIO; - ld->ops->receive_buf(tty, &ch, &mbz, 1); + if (ld->ops->receive_buf) + ld->ops->receive_buf(tty, &ch, &mbz, 1); tty_ldisc_deref(ld); return 0; } diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 476ec4b1b86c..da335899527b 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -1275,6 +1275,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, if (con_is_visible(vc)) update_screen(vc); vt_event_post(VT_EVENT_RESIZE, vc->vc_num, vc->vc_num); + notify_update(vc); return err; } @@ -2767,8 +2768,8 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co con_flush(vc, draw_from, draw_to, &draw_x); vc_uniscr_debug_check(vc); console_conditional_schedule(); - console_unlock(); notify_update(vc); + console_unlock(); return n; } @@ -2887,8 +2888,7 @@ static void vt_console_print(struct console *co, const char *b, unsigned count) unsigned char c; static DEFINE_SPINLOCK(printing_lock); const ushort *start; - ushort cnt = 0; - ushort myx; + ushort start_x, cnt; int kmsg_console; /* console busy or not yet initialized */ @@ -2901,10 +2901,6 @@ static void vt_console_print(struct console *co, const char *b, unsigned count) if (kmsg_console && vc_cons_allocated(kmsg_console - 1)) vc = vc_cons[kmsg_console - 1].d; - /* read `x' only after setting currcons properly (otherwise - the `x' macro will read the x of the foreground console). */ - myx = vc->vc_x; - if (!vc_cons_allocated(fg_console)) { /* impossible */ /* printk("vt_console_print: tty %d not allocated ??\n", currcons+1); */ @@ -2919,53 +2915,41 @@ static void vt_console_print(struct console *co, const char *b, unsigned count) hide_cursor(vc); start = (ushort *)vc->vc_pos; - - /* Contrived structure to try to emulate original need_wrap behaviour - * Problems caused when we have need_wrap set on '\n' character */ + start_x = vc->vc_x; + cnt = 0; while (count--) { c = *b++; if (c == 10 || c == 13 || c == 8 || vc->vc_need_wrap) { - if (cnt > 0) { - if (con_is_visible(vc)) - vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, vc->vc_x); - vc->vc_x += cnt; - if (vc->vc_need_wrap) - vc->vc_x--; - cnt = 0; - } + if (cnt && con_is_visible(vc)) + vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, start_x); + cnt = 0; if (c == 8) { /* backspace */ bs(vc); start = (ushort *)vc->vc_pos; - myx = vc->vc_x; + start_x = vc->vc_x; continue; } if (c != 13) lf(vc); cr(vc); start = (ushort *)vc->vc_pos; - myx = vc->vc_x; + start_x = vc->vc_x; if (c == 10 || c == 13) continue; } + vc_uniscr_putc(vc, c); scr_writew((vc->vc_attr << 8) + c, (unsigned short *)vc->vc_pos); notify_write(vc, c); cnt++; - if (myx == vc->vc_cols - 1) { - vc->vc_need_wrap = 1; - continue; - } - vc->vc_pos += 2; - myx++; - } - if (cnt > 0) { - if (con_is_visible(vc)) - vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, vc->vc_x); - vc->vc_x += cnt; - if (vc->vc_x == vc->vc_cols) { - vc->vc_x--; + if (vc->vc_x == vc->vc_cols - 1) { vc->vc_need_wrap = 1; + } else { + vc->vc_pos += 2; + vc->vc_x++; } } + if (cnt && con_is_visible(vc)) + vc->vc_sw->con_putcs(vc, start, cnt, vc->vc_y, start_x); set_cursor(vc); notify_update(vc); diff --git a/drivers/usb/core/ledtrig-usbport.c b/drivers/usb/core/ledtrig-usbport.c index dc7f7fd71684..c12ac56606c3 100644 --- a/drivers/usb/core/ledtrig-usbport.c +++ b/drivers/usb/core/ledtrig-usbport.c @@ -119,11 +119,6 @@ static const struct attribute_group ports_group = { .attrs = ports_attrs, }; -static const struct attribute_group *ports_groups[] = { - &ports_group, - NULL -}; - /*************************************** * Adding & removing ports ***************************************/ @@ -307,6 +302,7 @@ static int usbport_trig_notify(struct notifier_block *nb, unsigned long action, static int usbport_trig_activate(struct led_classdev *led_cdev) { struct usbport_trig_data *usbport_data; + int err; usbport_data = kzalloc(sizeof(*usbport_data), GFP_KERNEL); if (!usbport_data) @@ -315,6 +311,9 @@ static int usbport_trig_activate(struct led_classdev *led_cdev) /* List of ports */ INIT_LIST_HEAD(&usbport_data->ports); + err = sysfs_create_group(&led_cdev->dev->kobj, &ports_group); + if (err) + goto err_free; usb_for_each_dev(usbport_data, usbport_trig_add_usb_dev_ports); usbport_trig_update_count(usbport_data); @@ -322,8 +321,11 @@ static int usbport_trig_activate(struct led_classdev *led_cdev) usbport_data->nb.notifier_call = usbport_trig_notify; led_set_trigger_data(led_cdev, usbport_data); usb_register_notify(&usbport_data->nb); - return 0; + +err_free: + kfree(usbport_data); + return err; } static void usbport_trig_deactivate(struct led_classdev *led_cdev) @@ -335,6 +337,8 @@ static void usbport_trig_deactivate(struct led_classdev *led_cdev) usbport_trig_remove_port(usbport_data, port); } + sysfs_remove_group(&led_cdev->dev->kobj, &ports_group); + usb_unregister_notify(&usbport_data->nb); kfree(usbport_data); @@ -344,7 +348,6 @@ static struct led_trigger usbport_led_trigger = { .name = "usbport", .activate = usbport_trig_activate, .deactivate = usbport_trig_deactivate, - .groups = ports_groups, }; static int __init usbport_trig_init(void) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 558949b826d0..d8bf9307901e 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -177,6 +177,8 @@ static void dwc3_gadget_del_and_unmap_request(struct dwc3_ep *dep, req->started = false; list_del(&req->list); req->remaining = 0; + req->unaligned = false; + req->zero = false; if (req->request.status == -EINPROGRESS) req->request.status = status; diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index d5b38f096698..5a6df6e9ad57 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -46,6 +46,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ZTEK) }, + { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_TB) }, { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID), diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index 4e2554d55362..559941ca884d 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -8,6 +8,7 @@ #define PL2303_VENDOR_ID 0x067b #define PL2303_PRODUCT_ID 0x2303 +#define PL2303_PRODUCT_ID_TB 0x2304 #define PL2303_PRODUCT_ID_RSAQ2 0x04bb #define PL2303_PRODUCT_ID_DCU11 0x1234 #define PL2303_PRODUCT_ID_PHAROS 0xaaa0 @@ -20,6 +21,7 @@ #define PL2303_PRODUCT_ID_MOTOROLA 0x0307 #define PL2303_PRODUCT_ID_ZTEK 0xe1f1 + #define ATEN_VENDOR_ID 0x0557 #define ATEN_VENDOR_ID2 0x0547 #define ATEN_PRODUCT_ID 0x2008 diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c index 4d0273508043..edbbb13d6de6 100644 --- a/drivers/usb/serial/usb-serial-simple.c +++ b/drivers/usb/serial/usb-serial-simple.c @@ -85,7 +85,8 @@ DEVICE(moto_modem, MOTO_IDS); /* Motorola Tetra driver */ #define MOTOROLA_TETRA_IDS() \ { USB_DEVICE(0x0cad, 0x9011) }, /* Motorola Solutions TETRA PEI */ \ - { USB_DEVICE(0x0cad, 0x9012) } /* MTP6550 */ + { USB_DEVICE(0x0cad, 0x9012) }, /* MTP6550 */ \ + { USB_DEVICE(0x0cad, 0x9016) } /* TPG2200 */ DEVICE(motorola_tetra, MOTOROLA_TETRA_IDS); /* Novatel Wireless GPS driver */ diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 4e656f89cb22..a86aa65ad66d 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -1024,7 +1024,8 @@ static void handle_rx(struct vhost_net *net) if (nvq->done_idx > VHOST_NET_BATCH) vhost_net_signal_used(nvq); if (unlikely(vq_log)) - vhost_log_write(vq, vq_log, log, vhost_len); + vhost_log_write(vq, vq_log, log, vhost_len, + vq->iov, in); total_len += vhost_len; if (unlikely(vhost_exceeds_weight(++recv_pkts, total_len))) { vhost_poll_queue(&vq->poll); diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 55e5aa662ad5..c66fc8308b5e 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1733,13 +1733,87 @@ static int log_write(void __user *log_base, return r; } +static int log_write_hva(struct vhost_virtqueue *vq, u64 hva, u64 len) +{ + struct vhost_umem *umem = vq->umem; + struct vhost_umem_node *u; + u64 start, end, l, min; + int r; + bool hit = false; + + while (len) { + min = len; + /* More than one GPAs can be mapped into a single HVA. So + * iterate all possible umems here to be safe. + */ + list_for_each_entry(u, &umem->umem_list, link) { + if (u->userspace_addr > hva - 1 + len || + u->userspace_addr - 1 + u->size < hva) + continue; + start = max(u->userspace_addr, hva); + end = min(u->userspace_addr - 1 + u->size, + hva - 1 + len); + l = end - start + 1; + r = log_write(vq->log_base, + u->start + start - u->userspace_addr, + l); + if (r < 0) + return r; + hit = true; + min = min(l, min); + } + + if (!hit) + return -EFAULT; + + len -= min; + hva += min; + } + + return 0; +} + +static int log_used(struct vhost_virtqueue *vq, u64 used_offset, u64 len) +{ + struct iovec iov[64]; + int i, ret; + + if (!vq->iotlb) + return log_write(vq->log_base, vq->log_addr + used_offset, len); + + ret = translate_desc(vq, (uintptr_t)vq->used + used_offset, + len, iov, 64, VHOST_ACCESS_WO); + if (ret) + return ret; + + for (i = 0; i < ret; i++) { + ret = log_write_hva(vq, (uintptr_t)iov[i].iov_base, + iov[i].iov_len); + if (ret) + return ret; + } + + return 0; +} + int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log, - unsigned int log_num, u64 len) + unsigned int log_num, u64 len, struct iovec *iov, int count) { int i, r; /* Make sure data written is seen before log. */ smp_wmb(); + + if (vq->iotlb) { + for (i = 0; i < count; i++) { + r = log_write_hva(vq, (uintptr_t)iov[i].iov_base, + iov[i].iov_len); + if (r < 0) + return r; + } + return 0; + } + for (i = 0; i < log_num; ++i) { u64 l = min(log[i].len, len); r = log_write(vq->log_base, log[i].addr, l); @@ -1769,9 +1843,8 @@ static int vhost_update_used_flags(struct vhost_virtqueue *vq) smp_wmb(); /* Log used flag write. */ used = &vq->used->flags; - log_write(vq->log_base, vq->log_addr + - (used - (void __user *)vq->used), - sizeof vq->used->flags); + log_used(vq, (used - (void __user *)vq->used), + sizeof vq->used->flags); if (vq->log_ctx) eventfd_signal(vq->log_ctx, 1); } @@ -1789,9 +1862,8 @@ static int vhost_update_avail_event(struct vhost_virtqueue *vq, u16 avail_event) smp_wmb(); /* Log avail event write */ used = vhost_avail_event(vq); - log_write(vq->log_base, vq->log_addr + - (used - (void __user *)vq->used), - sizeof *vhost_avail_event(vq)); + log_used(vq, (used - (void __user *)vq->used), + sizeof *vhost_avail_event(vq)); if (vq->log_ctx) eventfd_signal(vq->log_ctx, 1); } @@ -2191,10 +2263,8 @@ static int __vhost_add_used_n(struct vhost_virtqueue *vq, /* Make sure data is seen before log. */ smp_wmb(); /* Log used ring entry write. */ - log_write(vq->log_base, - vq->log_addr + - ((void __user *)used - (void __user *)vq->used), - count * sizeof *used); + log_used(vq, ((void __user *)used - (void __user *)vq->used), + count * sizeof *used); } old = vq->last_used_idx; new = (vq->last_used_idx += count); @@ -2236,9 +2306,8 @@ int vhost_add_used_n(struct vhost_virtqueue *vq, struct vring_used_elem *heads, /* Make sure used idx is seen before log. */ smp_wmb(); /* Log used index update. */ - log_write(vq->log_base, - vq->log_addr + offsetof(struct vring_used, idx), - sizeof vq->used->idx); + log_used(vq, offsetof(struct vring_used, idx), + sizeof vq->used->idx); if (vq->log_ctx) eventfd_signal(vq->log_ctx, 1); } diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 466ef7542291..1b675dad5e05 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -205,7 +205,8 @@ bool vhost_vq_avail_empty(struct vhost_dev *, struct vhost_virtqueue *); bool vhost_enable_notify(struct vhost_dev *, struct vhost_virtqueue *); int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log, - unsigned int log_num, u64 len); + unsigned int log_num, u64 len, + struct iovec *iov, int count); int vq_iotlb_prefetch(struct vhost_virtqueue *vq); struct vhost_msg_node *vhost_new_msg(struct vhost_virtqueue *vq, int type); diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 09731b2f6815..c6b3bdbbdbc9 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -271,6 +271,7 @@ static void vgacon_scrollback_update(struct vc_data *c, int t, int count) static void vgacon_restore_screen(struct vc_data *c) { + c->vc_origin = c->vc_visible_origin; vgacon_scrollback_cur->save = 0; if (!vga_is_gfx && !vgacon_scrollback_cur->restore) { @@ -287,8 +288,7 @@ static void vgacon_scrolldelta(struct vc_data *c, int lines) int start, end, count, soff; if (!lines) { - c->vc_visible_origin = c->vc_origin; - vga_set_mem_top(c); + vgacon_restore_screen(c); return; } @@ -298,6 +298,7 @@ static void vgacon_scrolldelta(struct vc_data *c, int lines) if (!vgacon_scrollback_cur->save) { vgacon_cursor(c, CM_ERASE); vgacon_save_screen(c); + c->vc_origin = (unsigned long)c->vc_screenbuf; vgacon_scrollback_cur->save = 1; } @@ -335,7 +336,7 @@ static void vgacon_scrolldelta(struct vc_data *c, int lines) int copysize; int diff = c->vc_rows - count; - void *d = (void *) c->vc_origin; + void *d = (void *) c->vc_visible_origin; void *s = (void *) c->vc_screenbuf; count *= c->vc_size_row; diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index eadffaa39f4e..c7542e8dd096 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -1030,6 +1030,8 @@ static void drop_inode_snap_realm(struct ceph_inode_info *ci) list_del_init(&ci->i_snap_realm_item); ci->i_snap_realm_counter++; ci->i_snap_realm = NULL; + if (realm->ino == ci->i_vino.ino) + realm->inode = NULL; spin_unlock(&realm->inodes_with_caps_lock); ceph_put_snap_realm(ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc, realm); diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 5657b79dbc99..269471c8f42b 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1458,18 +1458,26 @@ cifs_discard_remaining_data(struct TCP_Server_Info *server) } static int -cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid) +__cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid, + bool malformed) { int length; - struct cifs_readdata *rdata = mid->callback_data; length = cifs_discard_remaining_data(server); - dequeue_mid(mid, rdata->result); + dequeue_mid(mid, malformed); mid->resp_buf = server->smallbuf; server->smallbuf = NULL; return length; } +static int +cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid) +{ + struct cifs_readdata *rdata = mid->callback_data; + + return __cifs_readv_discard(server, mid, rdata->result); +} + int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid) { @@ -1511,12 +1519,23 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid) return -1; } + /* set up first two iov for signature check and to get credits */ + rdata->iov[0].iov_base = buf; + rdata->iov[0].iov_len = 4; + rdata->iov[1].iov_base = buf + 4; + rdata->iov[1].iov_len = server->total_read - 4; + cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n", + rdata->iov[0].iov_base, rdata->iov[0].iov_len); + cifs_dbg(FYI, "1: iov_base=%p iov_len=%zu\n", + rdata->iov[1].iov_base, rdata->iov[1].iov_len); + /* Was the SMB read successful? */ rdata->result = server->ops->map_error(buf, false); if (rdata->result != 0) { cifs_dbg(FYI, "%s: server returned error %d\n", __func__, rdata->result); - return cifs_readv_discard(server, mid); + /* normal error on read response */ + return __cifs_readv_discard(server, mid, false); } /* Is there enough to get to the rest of the READ_RSP header? */ @@ -1560,14 +1579,6 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid) server->total_read += length; } - /* set up first iov for signature check */ - rdata->iov[0].iov_base = buf; - rdata->iov[0].iov_len = 4; - rdata->iov[1].iov_base = buf + 4; - rdata->iov[1].iov_len = server->total_read - 4; - cifs_dbg(FYI, "0: iov_base=%p iov_len=%u\n", - rdata->iov[0].iov_base, server->total_read); - /* how much data is in the response? */ #ifdef CONFIG_CIFS_SMB_DIRECT use_rdma_mr = rdata->mr; diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 52d71b64c0c6..d0bba175117c 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -533,6 +533,21 @@ server_unresponsive(struct TCP_Server_Info *server) return false; } +static inline bool +zero_credits(struct TCP_Server_Info *server) +{ + int val; + + spin_lock(&server->req_lock); + val = server->credits + server->echo_credits + server->oplock_credits; + if (server->in_flight == 0 && val == 0) { + spin_unlock(&server->req_lock); + return true; + } + spin_unlock(&server->req_lock); + return false; +} + static int cifs_readv_from_socket(struct TCP_Server_Info *server, struct msghdr *smb_msg) { @@ -545,6 +560,12 @@ cifs_readv_from_socket(struct TCP_Server_Info *server, struct msghdr *smb_msg) for (total_read = 0; msg_data_left(smb_msg); total_read += length) { try_to_freeze(); + /* reconnect if no credits and no requests in flight */ + if (zero_credits(server)) { + cifs_reconnect(server); + return -ECONNABORTED; + } + if (server_unresponsive(server)) return -ECONNABORTED; if (cifs_rdma_enabled(server) && server->smbd_conn) diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index 6a9c47541c53..7b8b58fb4d3f 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -648,6 +648,13 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server) if (rsp->sync_hdr.Command != SMB2_OPLOCK_BREAK) return false; + if (rsp->sync_hdr.CreditRequest) { + spin_lock(&server->req_lock); + server->credits += le16_to_cpu(rsp->sync_hdr.CreditRequest); + spin_unlock(&server->req_lock); + wake_up(&server->request_q); + } + if (rsp->StructureSize != smb2_rsp_struct_sizes[SMB2_OPLOCK_BREAK_HE]) { if (le16_to_cpu(rsp->StructureSize) == 44) diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index f44bb4a304e9..237d7281ada3 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -34,6 +34,7 @@ #include "cifs_ioctl.h" #include "smbdirect.h" +/* Change credits for different ops and return the total number of credits */ static int change_conf(struct TCP_Server_Info *server) { @@ -41,17 +42,15 @@ change_conf(struct TCP_Server_Info *server) server->oplock_credits = server->echo_credits = 0; switch (server->credits) { case 0: - return -1; + return 0; case 1: server->echoes = false; server->oplocks = false; - cifs_dbg(VFS, "disabling echoes and oplocks\n"); break; case 2: server->echoes = true; server->oplocks = false; server->echo_credits = 1; - cifs_dbg(FYI, "disabling oplocks\n"); break; default: server->echoes = true; @@ -64,14 +63,15 @@ change_conf(struct TCP_Server_Info *server) server->echo_credits = 1; } server->credits -= server->echo_credits + server->oplock_credits; - return 0; + return server->credits + server->echo_credits + server->oplock_credits; } static void smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add, const int optype) { - int *val, rc = 0; + int *val, rc = -1; + spin_lock(&server->req_lock); val = server->ops->get_credits_field(server, optype); *val += add; @@ -95,8 +95,26 @@ smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add, } spin_unlock(&server->req_lock); wake_up(&server->request_q); - if (rc) - cifs_reconnect(server); + + if (server->tcpStatus == CifsNeedReconnect) + return; + + switch (rc) { + case -1: + /* change_conf hasn't been executed */ + break; + case 0: + cifs_dbg(VFS, "Possible client or server bug - zero credits\n"); + break; + case 1: + cifs_dbg(VFS, "disabling echoes and oplocks\n"); + break; + case 2: + cifs_dbg(FYI, "disabling oplocks\n"); + break; + default: + cifs_dbg(FYI, "add %u credits total=%d\n", add, rc); + } } static void @@ -154,14 +172,14 @@ smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size, scredits = server->credits; /* can deadlock with reopen */ - if (scredits == 1) { + if (scredits <= 8) { *num = SMB2_MAX_BUFFER_SIZE; *credits = 0; break; } - /* leave one credit for a possible reopen */ - scredits--; + /* leave some credits for reopen and other ops */ + scredits -= 8; *num = min_t(unsigned int, size, scredits * SMB2_MAX_BUFFER_SIZE); @@ -2901,11 +2919,23 @@ handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid, server->ops->is_status_pending(buf, server, 0)) return -1; - rdata->result = server->ops->map_error(buf, false); + /* set up first two iov to get credits */ + rdata->iov[0].iov_base = buf; + rdata->iov[0].iov_len = 4; + rdata->iov[1].iov_base = buf + 4; + rdata->iov[1].iov_len = + min_t(unsigned int, buf_len, server->vals->read_rsp_size) - 4; + cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n", + rdata->iov[0].iov_base, rdata->iov[0].iov_len); + cifs_dbg(FYI, "1: iov_base=%p iov_len=%zu\n", + rdata->iov[1].iov_base, rdata->iov[1].iov_len); + + rdata->result = server->ops->map_error(buf, true); if (rdata->result != 0) { cifs_dbg(FYI, "%s: server returned error %d\n", __func__, rdata->result); - dequeue_mid(mid, rdata->result); + /* normal error on read response */ + dequeue_mid(mid, false); return 0; } @@ -2978,14 +3008,6 @@ handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid, return 0; } - /* set up first iov for signature check */ - rdata->iov[0].iov_base = buf; - rdata->iov[0].iov_len = 4; - rdata->iov[1].iov_base = buf + 4; - rdata->iov[1].iov_len = server->vals->read_rsp_size - 4; - cifs_dbg(FYI, "0: iov_base=%p iov_len=%zu\n", - rdata->iov[0].iov_base, server->vals->read_rsp_size); - length = rdata->copy_into_pages(server, rdata, &iter); kfree(bvec); diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index ac6978d3208c..780bba695453 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -724,8 +724,10 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname, return -EBADF; /* IN_MASK_ADD and IN_MASK_CREATE don't make sense together */ - if (unlikely((mask & IN_MASK_ADD) && (mask & IN_MASK_CREATE))) - return -EINVAL; + if (unlikely((mask & IN_MASK_ADD) && (mask & IN_MASK_CREATE))) { + ret = -EINVAL; + goto fput_and_out; + } /* verify that this is indeed an inotify instance */ if (unlikely(f.file->f_op != &inotify_fops)) { diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 1fd6fa822d2c..91393724e933 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -134,6 +134,7 @@ struct bpf_verifier_state { struct bpf_func_state *frame[MAX_CALL_FRAMES]; struct bpf_verifier_state *parent; u32 curframe; + bool speculative; }; /* linked list of verifier states used to prune search */ @@ -142,15 +143,25 @@ struct bpf_verifier_state_list { struct bpf_verifier_state_list *next; }; +/* Possible states for alu_state member. */ +#define BPF_ALU_SANITIZE_SRC 1U +#define BPF_ALU_SANITIZE_DST 2U +#define BPF_ALU_NEG_VALUE (1U << 2) +#define BPF_ALU_NON_POINTER (1U << 3) +#define BPF_ALU_SANITIZE (BPF_ALU_SANITIZE_SRC | \ + BPF_ALU_SANITIZE_DST) + struct bpf_insn_aux_data { union { enum bpf_reg_type ptr_type; /* pointer type for load/store insns */ unsigned long map_state; /* pointer/poison value for maps */ s32 call_imm; /* saved imm field of call insn */ + u32 alu_limit; /* limit for add/sub register with pointer */ }; int ctx_field_size; /* the ctx field size for load insn, maybe 0 */ int sanitize_stack_off; /* stack slot to be cleared */ bool seen; /* this insn was processed by the verifier */ + u8 alu_state; /* used in combination with alu_limit */ }; #define MAX_USED_MAPS 64 /* max number of maps accessed by one eBPF program */ @@ -186,6 +197,8 @@ struct bpf_subprog_info { * one verifier_env per bpf_check() call */ struct bpf_verifier_env { + u32 insn_idx; + u32 prev_insn_idx; struct bpf_prog *prog; /* eBPF program being verified */ const struct bpf_verifier_ops *ops; struct bpf_verifier_stack_elem *head; /* stack of verifier states to be processed */ diff --git a/include/linux/filter.h b/include/linux/filter.h index ec90d5255cf7..1a39d57eb88f 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -53,14 +53,10 @@ struct sock_reuseport; #define BPF_REG_D BPF_REG_8 /* data, callee-saved */ #define BPF_REG_H BPF_REG_9 /* hlen, callee-saved */ -/* Kernel hidden auxiliary/helper register for hardening step. - * Only used by eBPF JITs. It's nothing more than a temporary - * register that JITs use internally, only that here it's part - * of eBPF instructions that have been rewritten for blinding - * constants. See JIT pre-step in bpf_jit_blind_constants(). - */ +/* Kernel hidden auxiliary/helper register. */ #define BPF_REG_AX MAX_BPF_REG -#define MAX_BPF_JIT_REG (MAX_BPF_REG + 1) +#define MAX_BPF_EXT_REG (MAX_BPF_REG + 1) +#define MAX_BPF_JIT_REG MAX_BPF_EXT_REG /* unused opcode to mark special call to bpf_tail_call() helper */ #define BPF_TAIL_CALL 0xf0 diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 5185a16b19ba..bbde887ed393 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -1166,8 +1166,9 @@ struct hv_ring_buffer_debug_info { u32 bytes_avail_towrite; }; -void hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info, - struct hv_ring_buffer_debug_info *debug_info); + +int hv_ringbuffer_get_debuginfo(const struct hv_ring_buffer_info *ring_info, + struct hv_ring_buffer_debug_info *debug_info); /* Vmbus interface */ #define vmbus_driver_register(driver) \ diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 60a2e7646985..5d69e208e8d9 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3178,6 +3178,7 @@ int pskb_trim_rcsum_slow(struct sk_buff *skb, unsigned int len); * * This is exactly the same as pskb_trim except that it ensures the * checksum of received packets are still valid after the operation. + * It can change skb pointers. */ static inline int pskb_trim_rcsum(struct sk_buff *skb, unsigned int len) diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index c9b7b136939d..95eed32d8c6b 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -230,7 +230,7 @@ int fib_table_delete(struct net *, struct fib_table *, struct fib_config *, struct netlink_ext_ack *extack); int fib_table_dump(struct fib_table *table, struct sk_buff *skb, struct netlink_callback *cb); -int fib_table_flush(struct net *net, struct fib_table *table); +int fib_table_flush(struct net *net, struct fib_table *table, bool flush_all); struct fib_table *fib_trie_unmerge(struct fib_table *main_tb); void fib_table_flush_external(struct fib_table *table); void fib_free_table(struct fib_table *tb); diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h index fb78f6f500f3..f056b2a00d5c 100644 --- a/include/uapi/linux/input.h +++ b/include/uapi/linux/input.h @@ -26,13 +26,17 @@ */ struct input_event { -#if (__BITS_PER_LONG != 32 || !defined(__USE_TIME_BITS64)) && !defined(__KERNEL) +#if (__BITS_PER_LONG != 32 || !defined(__USE_TIME_BITS64)) && !defined(__KERNEL__) struct timeval time; #define input_event_sec time.tv_sec #define input_event_usec time.tv_usec #else __kernel_ulong_t __sec; +#if defined(__sparc__) && defined(__arch64__) + unsigned int __usec; +#else __kernel_ulong_t __usec; +#endif #define input_event_sec __sec #define input_event_usec __usec #endif diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 3f5bf1af0826..474525e3a9db 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -52,6 +52,7 @@ #define DST regs[insn->dst_reg] #define SRC regs[insn->src_reg] #define FP regs[BPF_REG_FP] +#define AX regs[BPF_REG_AX] #define ARG1 regs[BPF_REG_ARG1] #define CTX regs[BPF_REG_CTX] #define IMM insn->imm @@ -642,6 +643,26 @@ static int bpf_jit_blind_insn(const struct bpf_insn *from, BUILD_BUG_ON(BPF_REG_AX + 1 != MAX_BPF_JIT_REG); BUILD_BUG_ON(MAX_BPF_REG + 1 != MAX_BPF_JIT_REG); + /* Constraints on AX register: + * + * AX register is inaccessible from user space. It is mapped in + * all JITs, and used here for constant blinding rewrites. It is + * typically "stateless" meaning its contents are only valid within + * the executed instruction, but not across several instructions. + * There are a few exceptions however which are further detailed + * below. + * + * Constant blinding is only used by JITs, not in the interpreter. + * The interpreter uses AX in some occasions as a local temporary + * register e.g. in DIV or MOD instructions. + * + * In restricted circumstances, the verifier can also use the AX + * register for rewrites as long as they do not interfere with + * the above cases! + */ + if (from->dst_reg == BPF_REG_AX || from->src_reg == BPF_REG_AX) + goto out; + if (from->imm == 0 && (from->code == (BPF_ALU | BPF_MOV | BPF_K) || from->code == (BPF_ALU64 | BPF_MOV | BPF_K))) { @@ -971,7 +992,6 @@ bool bpf_opcode_in_insntable(u8 code) */ static u64 ___bpf_prog_run(u64 *regs, const struct bpf_insn *insn, u64 *stack) { - u64 tmp; #define BPF_INSN_2_LBL(x, y) [BPF_##x | BPF_##y] = &&x##_##y #define BPF_INSN_3_LBL(x, y, z) [BPF_##x | BPF_##y | BPF_##z] = &&x##_##y##_##z static const void *jumptable[256] = { @@ -1045,36 +1065,36 @@ static u64 ___bpf_prog_run(u64 *regs, const struct bpf_insn *insn, u64 *stack) (*(s64 *) &DST) >>= IMM; CONT; ALU64_MOD_X: - div64_u64_rem(DST, SRC, &tmp); - DST = tmp; + div64_u64_rem(DST, SRC, &AX); + DST = AX; CONT; ALU_MOD_X: - tmp = (u32) DST; - DST = do_div(tmp, (u32) SRC); + AX = (u32) DST; + DST = do_div(AX, (u32) SRC); CONT; ALU64_MOD_K: - div64_u64_rem(DST, IMM, &tmp); - DST = tmp; + div64_u64_rem(DST, IMM, &AX); + DST = AX; CONT; ALU_MOD_K: - tmp = (u32) DST; - DST = do_div(tmp, (u32) IMM); + AX = (u32) DST; + DST = do_div(AX, (u32) IMM); CONT; ALU64_DIV_X: DST = div64_u64(DST, SRC); CONT; ALU_DIV_X: - tmp = (u32) DST; - do_div(tmp, (u32) SRC); - DST = (u32) tmp; + AX = (u32) DST; + do_div(AX, (u32) SRC); + DST = (u32) AX; CONT; ALU64_DIV_K: DST = div64_u64(DST, IMM); CONT; ALU_DIV_K: - tmp = (u32) DST; - do_div(tmp, (u32) IMM); - DST = (u32) tmp; + AX = (u32) DST; + do_div(AX, (u32) IMM); + DST = (u32) AX; CONT; ALU_END_TO_BE: switch (IMM) { @@ -1330,7 +1350,7 @@ STACK_FRAME_NON_STANDARD(___bpf_prog_run); /* jump table */ static unsigned int PROG_NAME(stack_size)(const void *ctx, const struct bpf_insn *insn) \ { \ u64 stack[stack_size / sizeof(u64)]; \ - u64 regs[MAX_BPF_REG]; \ + u64 regs[MAX_BPF_EXT_REG]; \ \ FP = (u64) (unsigned long) &stack[ARRAY_SIZE(stack)]; \ ARG1 = (u64) (unsigned long) ctx; \ @@ -1343,7 +1363,7 @@ static u64 PROG_NAME_ARGS(stack_size)(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5, \ const struct bpf_insn *insn) \ { \ u64 stack[stack_size / sizeof(u64)]; \ - u64 regs[MAX_BPF_REG]; \ + u64 regs[MAX_BPF_EXT_REG]; \ \ FP = (u64) (unsigned long) &stack[ARRAY_SIZE(stack)]; \ BPF_R1 = r1; \ diff --git a/kernel/bpf/map_in_map.c b/kernel/bpf/map_in_map.c index 3bfbf4464416..9670ee5ee74e 100644 --- a/kernel/bpf/map_in_map.c +++ b/kernel/bpf/map_in_map.c @@ -12,6 +12,7 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd) { struct bpf_map *inner_map, *inner_map_meta; + u32 inner_map_meta_size; struct fd f; f = fdget(inner_map_ufd); @@ -35,7 +36,12 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd) return ERR_PTR(-EINVAL); } - inner_map_meta = kzalloc(sizeof(*inner_map_meta), GFP_USER); + inner_map_meta_size = sizeof(*inner_map_meta); + /* In some cases verifier needs to access beyond just base map. */ + if (inner_map->ops == &array_map_ops) + inner_map_meta_size = sizeof(struct bpf_array); + + inner_map_meta = kzalloc(inner_map_meta_size, GFP_USER); if (!inner_map_meta) { fdput(f); return ERR_PTR(-ENOMEM); @@ -45,9 +51,16 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd) inner_map_meta->key_size = inner_map->key_size; inner_map_meta->value_size = inner_map->value_size; inner_map_meta->map_flags = inner_map->map_flags; - inner_map_meta->ops = inner_map->ops; inner_map_meta->max_entries = inner_map->max_entries; + /* Misc members not needed in bpf_map_meta_equal() check. */ + inner_map_meta->ops = inner_map->ops; + if (inner_map->ops == &array_map_ops) { + inner_map_meta->unpriv_array = inner_map->unpriv_array; + container_of(inner_map_meta, struct bpf_array, map)->index_mask = + container_of(inner_map, struct bpf_array, map)->index_mask; + } + fdput(f); return inner_map_meta; } diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 341806668f03..4d81be2d0739 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -156,6 +156,7 @@ struct bpf_verifier_stack_elem { #define BPF_COMPLEXITY_LIMIT_INSNS 131072 #define BPF_COMPLEXITY_LIMIT_STACK 1024 +#define BPF_COMPLEXITY_LIMIT_STATES 64 #define BPF_MAP_PTR_UNPRIV 1UL #define BPF_MAP_PTR_POISON ((void *)((0xeB9FUL << 1) + \ @@ -465,6 +466,7 @@ static int copy_verifier_state(struct bpf_verifier_state *dst_state, free_func_state(dst_state->frame[i]); dst_state->frame[i] = NULL; } + dst_state->speculative = src->speculative; dst_state->curframe = src->curframe; dst_state->parent = src->parent; for (i = 0; i <= src->curframe; i++) { @@ -510,7 +512,8 @@ static int pop_stack(struct bpf_verifier_env *env, int *prev_insn_idx, } static struct bpf_verifier_state *push_stack(struct bpf_verifier_env *env, - int insn_idx, int prev_insn_idx) + int insn_idx, int prev_insn_idx, + bool speculative) { struct bpf_verifier_state *cur = env->cur_state; struct bpf_verifier_stack_elem *elem; @@ -528,6 +531,7 @@ static struct bpf_verifier_state *push_stack(struct bpf_verifier_env *env, err = copy_verifier_state(&elem->st, cur); if (err) goto err; + elem->st.speculative |= speculative; if (env->stack_size > BPF_COMPLEXITY_LIMIT_STACK) { verbose(env, "BPF program is too complex\n"); goto err; @@ -1237,6 +1241,31 @@ static int check_stack_read(struct bpf_verifier_env *env, } } +static int check_stack_access(struct bpf_verifier_env *env, + const struct bpf_reg_state *reg, + int off, int size) +{ + /* Stack accesses must be at a fixed offset, so that we + * can determine what type of data were returned. See + * check_stack_read(). + */ + if (!tnum_is_const(reg->var_off)) { + char tn_buf[48]; + + tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off); + verbose(env, "variable stack access var_off=%s off=%d size=%d", + tn_buf, off, size); + return -EACCES; + } + + if (off >= 0 || off < -MAX_BPF_STACK) { + verbose(env, "invalid stack off=%d size=%d\n", off, size); + return -EACCES; + } + + return 0; +} + /* check read/write into map element returned by bpf_map_lookup_elem() */ static int __check_map_access(struct bpf_verifier_env *env, u32 regno, int off, int size, bool zero_size_allowed) @@ -1268,13 +1297,17 @@ static int check_map_access(struct bpf_verifier_env *env, u32 regno, */ if (env->log.level) print_verifier_state(env, state); + /* The minimum value is only important with signed * comparisons where we can't assume the floor of a * value is 0. If we are using signed variables for our * index'es we need to make sure that whatever we use * will have a set floor within our range. */ - if (reg->smin_value < 0) { + if (reg->smin_value < 0 && + (reg->smin_value == S64_MIN || + (off + reg->smin_value != (s64)(s32)(off + reg->smin_value)) || + reg->smin_value + off < 0)) { verbose(env, "R%d min value is negative, either use unsigned index or do a if (index >=0) check.\n", regno); return -EACCES; @@ -1735,24 +1768,10 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn } } else if (reg->type == PTR_TO_STACK) { - /* stack accesses must be at a fixed offset, so that we can - * determine what type of data were returned. - * See check_stack_read(). - */ - if (!tnum_is_const(reg->var_off)) { - char tn_buf[48]; - - tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off); - verbose(env, "variable stack access var_off=%s off=%d size=%d", - tn_buf, off, size); - return -EACCES; - } off += reg->var_off.value; - if (off >= 0 || off < -MAX_BPF_STACK) { - verbose(env, "invalid stack off=%d size=%d\n", off, - size); - return -EACCES; - } + err = check_stack_access(env, reg, off, size); + if (err) + return err; state = func(env, reg); err = update_stack_depth(env, state, off); @@ -2682,6 +2701,125 @@ static bool check_reg_sane_offset(struct bpf_verifier_env *env, return true; } +static struct bpf_insn_aux_data *cur_aux(struct bpf_verifier_env *env) +{ + return &env->insn_aux_data[env->insn_idx]; +} + +static int retrieve_ptr_limit(const struct bpf_reg_state *ptr_reg, + u32 *ptr_limit, u8 opcode, bool off_is_neg) +{ + bool mask_to_left = (opcode == BPF_ADD && off_is_neg) || + (opcode == BPF_SUB && !off_is_neg); + u32 off; + + switch (ptr_reg->type) { + case PTR_TO_STACK: + off = ptr_reg->off + ptr_reg->var_off.value; + if (mask_to_left) + *ptr_limit = MAX_BPF_STACK + off; + else + *ptr_limit = -off; + return 0; + case PTR_TO_MAP_VALUE: + if (mask_to_left) { + *ptr_limit = ptr_reg->umax_value + ptr_reg->off; + } else { + off = ptr_reg->smin_value + ptr_reg->off; + *ptr_limit = ptr_reg->map_ptr->value_size - off; + } + return 0; + default: + return -EINVAL; + } +} + +static bool can_skip_alu_sanitation(const struct bpf_verifier_env *env, + const struct bpf_insn *insn) +{ + return env->allow_ptr_leaks || BPF_SRC(insn->code) == BPF_K; +} + +static int update_alu_sanitation_state(struct bpf_insn_aux_data *aux, + u32 alu_state, u32 alu_limit) +{ + /* If we arrived here from different branches with different + * state or limits to sanitize, then this won't work. + */ + if (aux->alu_state && + (aux->alu_state != alu_state || + aux->alu_limit != alu_limit)) + return -EACCES; + + /* Corresponding fixup done in fixup_bpf_calls(). */ + aux->alu_state = alu_state; + aux->alu_limit = alu_limit; + return 0; +} + +static int sanitize_val_alu(struct bpf_verifier_env *env, + struct bpf_insn *insn) +{ + struct bpf_insn_aux_data *aux = cur_aux(env); + + if (can_skip_alu_sanitation(env, insn)) + return 0; + + return update_alu_sanitation_state(aux, BPF_ALU_NON_POINTER, 0); +} + +static int sanitize_ptr_alu(struct bpf_verifier_env *env, + struct bpf_insn *insn, + const struct bpf_reg_state *ptr_reg, + struct bpf_reg_state *dst_reg, + bool off_is_neg) +{ + struct bpf_verifier_state *vstate = env->cur_state; + struct bpf_insn_aux_data *aux = cur_aux(env); + bool ptr_is_dst_reg = ptr_reg == dst_reg; + u8 opcode = BPF_OP(insn->code); + u32 alu_state, alu_limit; + struct bpf_reg_state tmp; + bool ret; + + if (can_skip_alu_sanitation(env, insn)) + return 0; + + /* We already marked aux for masking from non-speculative + * paths, thus we got here in the first place. We only care + * to explore bad access from here. + */ + if (vstate->speculative) + goto do_sim; + + alu_state = off_is_neg ? BPF_ALU_NEG_VALUE : 0; + alu_state |= ptr_is_dst_reg ? + BPF_ALU_SANITIZE_SRC : BPF_ALU_SANITIZE_DST; + + if (retrieve_ptr_limit(ptr_reg, &alu_limit, opcode, off_is_neg)) + return 0; + if (update_alu_sanitation_state(aux, alu_state, alu_limit)) + return -EACCES; +do_sim: + /* Simulate and find potential out-of-bounds access under + * speculative execution from truncation as a result of + * masking when off was not within expected range. If off + * sits in dst, then we temporarily need to move ptr there + * to simulate dst (== 0) +/-= ptr. Needed, for example, + * for cases where we use K-based arithmetic in one direction + * and truncated reg-based in the other in order to explore + * bad access. + */ + if (!ptr_is_dst_reg) { + tmp = *dst_reg; + *dst_reg = *ptr_reg; + } + ret = push_stack(env, env->insn_idx + 1, env->insn_idx, true); + if (!ptr_is_dst_reg) + *dst_reg = tmp; + return !ret ? -EFAULT : 0; +} + /* Handles arithmetic on a pointer and a scalar: computes new min/max and var_off. * Caller should also handle BPF_MOV case separately. * If we return -EACCES, caller may want to try again treating pointer as a @@ -2700,8 +2838,9 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env, smin_ptr = ptr_reg->smin_value, smax_ptr = ptr_reg->smax_value; u64 umin_val = off_reg->umin_value, umax_val = off_reg->umax_value, umin_ptr = ptr_reg->umin_value, umax_ptr = ptr_reg->umax_value; + u32 dst = insn->dst_reg, src = insn->src_reg; u8 opcode = BPF_OP(insn->code); - u32 dst = insn->dst_reg; + int ret; dst_reg = ®s[dst]; @@ -2737,6 +2876,12 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env, dst); return -EACCES; } + if (ptr_reg->type == PTR_TO_MAP_VALUE && + !env->allow_ptr_leaks && !known && (smin_val < 0) != (smax_val < 0)) { + verbose(env, "R%d has unknown scalar with mixed signed bounds, pointer arithmetic with it prohibited for !root\n", + off_reg == dst_reg ? dst : src); + return -EACCES; + } /* In case of 'scalar += pointer', dst_reg inherits pointer type and id. * The id may be overwritten later if we create a new variable offset. @@ -2750,6 +2895,11 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env, switch (opcode) { case BPF_ADD: + ret = sanitize_ptr_alu(env, insn, ptr_reg, dst_reg, smin_val < 0); + if (ret < 0) { + verbose(env, "R%d tried to add from different maps or paths\n", dst); + return ret; + } /* We can take a fixed offset as long as it doesn't overflow * the s32 'off' field */ @@ -2800,6 +2950,11 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env, } break; case BPF_SUB: + ret = sanitize_ptr_alu(env, insn, ptr_reg, dst_reg, smin_val < 0); + if (ret < 0) { + verbose(env, "R%d tried to sub from different maps or paths\n", dst); + return ret; + } if (dst_reg == off_reg) { /* scalar -= pointer. Creates an unknown scalar */ verbose(env, "R%d tried to subtract pointer from scalar\n", @@ -2879,6 +3034,25 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env, __update_reg_bounds(dst_reg); __reg_deduce_bounds(dst_reg); __reg_bound_offset(dst_reg); + + /* For unprivileged we require that resulting offset must be in bounds + * in order to be able to sanitize access later on. + */ + if (!env->allow_ptr_leaks) { + if (dst_reg->type == PTR_TO_MAP_VALUE && + check_map_access(env, dst, dst_reg->off, 1, false)) { + verbose(env, "R%d pointer arithmetic of map value goes out of range, " + "prohibited for !root\n", dst); + return -EACCES; + } else if (dst_reg->type == PTR_TO_STACK && + check_stack_access(env, dst_reg, dst_reg->off + + dst_reg->var_off.value, 1)) { + verbose(env, "R%d stack pointer arithmetic goes out of range, " + "prohibited for !root\n", dst); + return -EACCES; + } + } + return 0; } @@ -2897,6 +3071,8 @@ static int adjust_scalar_min_max_vals(struct bpf_verifier_env *env, s64 smin_val, smax_val; u64 umin_val, umax_val; u64 insn_bitness = (BPF_CLASS(insn->code) == BPF_ALU64) ? 64 : 32; + u32 dst = insn->dst_reg; + int ret; if (insn_bitness == 32) { /* Relevant for 32-bit RSH: Information can propagate towards @@ -2931,6 +3107,11 @@ static int adjust_scalar_min_max_vals(struct bpf_verifier_env *env, switch (opcode) { case BPF_ADD: + ret = sanitize_val_alu(env, insn); + if (ret < 0) { + verbose(env, "R%d tried to add from different pointers or scalars\n", dst); + return ret; + } if (signed_add_overflows(dst_reg->smin_value, smin_val) || signed_add_overflows(dst_reg->smax_value, smax_val)) { dst_reg->smin_value = S64_MIN; @@ -2950,6 +3131,11 @@ static int adjust_scalar_min_max_vals(struct bpf_verifier_env *env, dst_reg->var_off = tnum_add(dst_reg->var_off, src_reg.var_off); break; case BPF_SUB: + ret = sanitize_val_alu(env, insn); + if (ret < 0) { + verbose(env, "R%d tried to sub from different pointers or scalars\n", dst); + return ret; + } if (signed_sub_overflows(dst_reg->smin_value, smax_val) || signed_sub_overflows(dst_reg->smax_value, smin_val)) { /* Overflow possible, we know nothing */ @@ -3475,6 +3661,79 @@ static void find_good_pkt_pointers(struct bpf_verifier_state *vstate, } } +/* compute branch direction of the expression "if (reg opcode val) goto target;" + * and return: + * 1 - branch will be taken and "goto target" will be executed + * 0 - branch will not be taken and fall-through to next insn + * -1 - unknown. Example: "if (reg < 5)" is unknown when register value range [0,10] + */ +static int is_branch_taken(struct bpf_reg_state *reg, u64 val, u8 opcode) +{ + if (__is_pointer_value(false, reg)) + return -1; + + switch (opcode) { + case BPF_JEQ: + if (tnum_is_const(reg->var_off)) + return !!tnum_equals_const(reg->var_off, val); + break; + case BPF_JNE: + if (tnum_is_const(reg->var_off)) + return !tnum_equals_const(reg->var_off, val); + break; + case BPF_JGT: + if (reg->umin_value > val) + return 1; + else if (reg->umax_value <= val) + return 0; + break; + case BPF_JSGT: + if (reg->smin_value > (s64)val) + return 1; + else if (reg->smax_value < (s64)val) + return 0; + break; + case BPF_JLT: + if (reg->umax_value < val) + return 1; + else if (reg->umin_value >= val) + return 0; + break; + case BPF_JSLT: + if (reg->smax_value < (s64)val) + return 1; + else if (reg->smin_value >= (s64)val) + return 0; + break; + case BPF_JGE: + if (reg->umin_value >= val) + return 1; + else if (reg->umax_value < val) + return 0; + break; + case BPF_JSGE: + if (reg->smin_value >= (s64)val) + return 1; + else if (reg->smax_value < (s64)val) + return 0; + break; + case BPF_JLE: + if (reg->umax_value <= val) + return 1; + else if (reg->umin_value > val) + return 0; + break; + case BPF_JSLE: + if (reg->smax_value <= (s64)val) + return 1; + else if (reg->smin_value > (s64)val) + return 0; + break; + } + + return -1; +} + /* Adjusts the register min/max values in the case that the dst_reg is the * variable register that we are working on, and src_reg is a constant or we're * simply doing a BPF_K check. @@ -3868,28 +4127,23 @@ static int check_cond_jmp_op(struct bpf_verifier_env *env, dst_reg = ®s[insn->dst_reg]; - /* detect if R == 0 where R was initialized to zero earlier */ - if (BPF_SRC(insn->code) == BPF_K && - (opcode == BPF_JEQ || opcode == BPF_JNE) && - dst_reg->type == SCALAR_VALUE && - tnum_is_const(dst_reg->var_off)) { - if ((opcode == BPF_JEQ && dst_reg->var_off.value == insn->imm) || - (opcode == BPF_JNE && dst_reg->var_off.value != insn->imm)) { - /* if (imm == imm) goto pc+off; - * only follow the goto, ignore fall-through - */ + if (BPF_SRC(insn->code) == BPF_K) { + int pred = is_branch_taken(dst_reg, insn->imm, opcode); + + if (pred == 1) { + /* only follow the goto, ignore fall-through */ *insn_idx += insn->off; return 0; - } else { - /* if (imm != imm) goto pc+off; - * only follow fall-through branch, since + } else if (pred == 0) { + /* only follow fall-through branch, since * that's where the program will go */ return 0; } } - other_branch = push_stack(env, *insn_idx + insn->off + 1, *insn_idx); + other_branch = push_stack(env, *insn_idx + insn->off + 1, *insn_idx, + false); if (!other_branch) return -EFAULT; other_branch_regs = other_branch->frame[other_branch->curframe]->regs; @@ -4604,6 +4858,12 @@ static bool states_equal(struct bpf_verifier_env *env, if (old->curframe != cur->curframe) return false; + /* Verification state from speculative execution simulation + * must never prune a non-speculative execution one. + */ + if (old->speculative && !cur->speculative) + return false; + /* for states to be equal callsites have to be the same * and all frame states need to be equivalent */ @@ -4668,7 +4928,7 @@ static int is_state_visited(struct bpf_verifier_env *env, int insn_idx) struct bpf_verifier_state_list *new_sl; struct bpf_verifier_state_list *sl; struct bpf_verifier_state *cur = env->cur_state; - int i, j, err; + int i, j, err, states_cnt = 0; sl = env->explored_states[insn_idx]; if (!sl) @@ -4695,8 +4955,12 @@ static int is_state_visited(struct bpf_verifier_env *env, int insn_idx) return 1; } sl = sl->next; + states_cnt++; } + if (!env->allow_ptr_leaks && states_cnt > BPF_COMPLEXITY_LIMIT_STATES) + return 0; + /* there were no equivalent states, remember current one. * technically the current state is not proven to be safe yet, * but it will either reach outer most bpf_exit (which means it's safe) @@ -4744,7 +5008,6 @@ static int do_check(struct bpf_verifier_env *env) struct bpf_insn *insns = env->prog->insnsi; struct bpf_reg_state *regs; int insn_cnt = env->prog->len, i; - int insn_idx, prev_insn_idx = 0; int insn_processed = 0; bool do_print_state = false; @@ -4752,7 +5015,7 @@ static int do_check(struct bpf_verifier_env *env) if (!state) return -ENOMEM; state->curframe = 0; - state->parent = NULL; + state->speculative = false; state->frame[0] = kzalloc(sizeof(struct bpf_func_state), GFP_KERNEL); if (!state->frame[0]) { kfree(state); @@ -4763,19 +5026,19 @@ static int do_check(struct bpf_verifier_env *env) BPF_MAIN_FUNC /* callsite */, 0 /* frameno */, 0 /* subprogno, zero == main subprog */); - insn_idx = 0; + for (;;) { struct bpf_insn *insn; u8 class; int err; - if (insn_idx >= insn_cnt) { + if (env->insn_idx >= insn_cnt) { verbose(env, "invalid insn idx %d insn_cnt %d\n", - insn_idx, insn_cnt); + env->insn_idx, insn_cnt); return -EFAULT; } - insn = &insns[insn_idx]; + insn = &insns[env->insn_idx]; class = BPF_CLASS(insn->code); if (++insn_processed > BPF_COMPLEXITY_LIMIT_INSNS) { @@ -4785,17 +5048,19 @@ static int do_check(struct bpf_verifier_env *env) return -E2BIG; } - err = is_state_visited(env, insn_idx); + err = is_state_visited(env, env->insn_idx); if (err < 0) return err; if (err == 1) { /* found equivalent state, can prune the search */ if (env->log.level) { if (do_print_state) - verbose(env, "\nfrom %d to %d: safe\n", - prev_insn_idx, insn_idx); + verbose(env, "\nfrom %d to %d%s: safe\n", + env->prev_insn_idx, env->insn_idx, + env->cur_state->speculative ? + " (speculative execution)" : ""); else - verbose(env, "%d: safe\n", insn_idx); + verbose(env, "%d: safe\n", env->insn_idx); } goto process_bpf_exit; } @@ -4808,10 +5073,12 @@ static int do_check(struct bpf_verifier_env *env) if (env->log.level > 1 || (env->log.level && do_print_state)) { if (env->log.level > 1) - verbose(env, "%d:", insn_idx); + verbose(env, "%d:", env->insn_idx); else - verbose(env, "\nfrom %d to %d:", - prev_insn_idx, insn_idx); + verbose(env, "\nfrom %d to %d%s:", + env->prev_insn_idx, env->insn_idx, + env->cur_state->speculative ? + " (speculative execution)" : ""); print_verifier_state(env, state->frame[state->curframe]); do_print_state = false; } @@ -4822,19 +5089,20 @@ static int do_check(struct bpf_verifier_env *env) .private_data = env, }; - verbose(env, "%d: ", insn_idx); + verbose(env, "%d: ", env->insn_idx); print_bpf_insn(&cbs, insn, env->allow_ptr_leaks); } if (bpf_prog_is_dev_bound(env->prog->aux)) { - err = bpf_prog_offload_verify_insn(env, insn_idx, - prev_insn_idx); + err = bpf_prog_offload_verify_insn(env, env->insn_idx, + env->prev_insn_idx); if (err) return err; } regs = cur_regs(env); - env->insn_aux_data[insn_idx].seen = true; + env->insn_aux_data[env->insn_idx].seen = true; + if (class == BPF_ALU || class == BPF_ALU64) { err = check_alu_op(env, insn); if (err) @@ -4859,13 +5127,13 @@ static int do_check(struct bpf_verifier_env *env) /* check that memory (src_reg + off) is readable, * the state of dst_reg will be updated by this func */ - err = check_mem_access(env, insn_idx, insn->src_reg, insn->off, - BPF_SIZE(insn->code), BPF_READ, - insn->dst_reg, false); + err = check_mem_access(env, env->insn_idx, insn->src_reg, + insn->off, BPF_SIZE(insn->code), + BPF_READ, insn->dst_reg, false); if (err) return err; - prev_src_type = &env->insn_aux_data[insn_idx].ptr_type; + prev_src_type = &env->insn_aux_data[env->insn_idx].ptr_type; if (*prev_src_type == NOT_INIT) { /* saw a valid insn @@ -4892,10 +5160,10 @@ static int do_check(struct bpf_verifier_env *env) enum bpf_reg_type *prev_dst_type, dst_reg_type; if (BPF_MODE(insn->code) == BPF_XADD) { - err = check_xadd(env, insn_idx, insn); + err = check_xadd(env, env->insn_idx, insn); if (err) return err; - insn_idx++; + env->insn_idx++; continue; } @@ -4911,13 +5179,13 @@ static int do_check(struct bpf_verifier_env *env) dst_reg_type = regs[insn->dst_reg].type; /* check that memory (dst_reg + off) is writeable */ - err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off, - BPF_SIZE(insn->code), BPF_WRITE, - insn->src_reg, false); + err = check_mem_access(env, env->insn_idx, insn->dst_reg, + insn->off, BPF_SIZE(insn->code), + BPF_WRITE, insn->src_reg, false); if (err) return err; - prev_dst_type = &env->insn_aux_data[insn_idx].ptr_type; + prev_dst_type = &env->insn_aux_data[env->insn_idx].ptr_type; if (*prev_dst_type == NOT_INIT) { *prev_dst_type = dst_reg_type; @@ -4946,9 +5214,9 @@ static int do_check(struct bpf_verifier_env *env) } /* check that memory (dst_reg + off) is writeable */ - err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off, - BPF_SIZE(insn->code), BPF_WRITE, - -1, false); + err = check_mem_access(env, env->insn_idx, insn->dst_reg, + insn->off, BPF_SIZE(insn->code), + BPF_WRITE, -1, false); if (err) return err; @@ -4966,9 +5234,9 @@ static int do_check(struct bpf_verifier_env *env) } if (insn->src_reg == BPF_PSEUDO_CALL) - err = check_func_call(env, insn, &insn_idx); + err = check_func_call(env, insn, &env->insn_idx); else - err = check_helper_call(env, insn->imm, insn_idx); + err = check_helper_call(env, insn->imm, env->insn_idx); if (err) return err; @@ -4981,7 +5249,7 @@ static int do_check(struct bpf_verifier_env *env) return -EINVAL; } - insn_idx += insn->off + 1; + env->insn_idx += insn->off + 1; continue; } else if (opcode == BPF_EXIT) { @@ -4995,8 +5263,8 @@ static int do_check(struct bpf_verifier_env *env) if (state->curframe) { /* exit from nested function */ - prev_insn_idx = insn_idx; - err = prepare_func_exit(env, &insn_idx); + env->prev_insn_idx = env->insn_idx; + err = prepare_func_exit(env, &env->insn_idx); if (err) return err; do_print_state = true; @@ -5022,7 +5290,8 @@ static int do_check(struct bpf_verifier_env *env) if (err) return err; process_bpf_exit: - err = pop_stack(env, &prev_insn_idx, &insn_idx); + err = pop_stack(env, &env->prev_insn_idx, + &env->insn_idx); if (err < 0) { if (err != -ENOENT) return err; @@ -5032,7 +5301,7 @@ static int do_check(struct bpf_verifier_env *env) continue; } } else { - err = check_cond_jmp_op(env, insn, &insn_idx); + err = check_cond_jmp_op(env, insn, &env->insn_idx); if (err) return err; } @@ -5049,8 +5318,8 @@ static int do_check(struct bpf_verifier_env *env) if (err) return err; - insn_idx++; - env->insn_aux_data[insn_idx].seen = true; + env->insn_idx++; + env->insn_aux_data[env->insn_idx].seen = true; } else { verbose(env, "invalid BPF_LD mode\n"); return -EINVAL; @@ -5060,7 +5329,7 @@ static int do_check(struct bpf_verifier_env *env) return -EINVAL; } - insn_idx++; + env->insn_idx++; } verbose(env, "processed %d insns (limit %d), stack depth ", @@ -5756,6 +6025,57 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env) continue; } + if (insn->code == (BPF_ALU64 | BPF_ADD | BPF_X) || + insn->code == (BPF_ALU64 | BPF_SUB | BPF_X)) { + const u8 code_add = BPF_ALU64 | BPF_ADD | BPF_X; + const u8 code_sub = BPF_ALU64 | BPF_SUB | BPF_X; + struct bpf_insn insn_buf[16]; + struct bpf_insn *patch = &insn_buf[0]; + bool issrc, isneg; + u32 off_reg; + + aux = &env->insn_aux_data[i + delta]; + if (!aux->alu_state) + continue; + + isneg = aux->alu_state & BPF_ALU_NEG_VALUE; + issrc = (aux->alu_state & BPF_ALU_SANITIZE) == + BPF_ALU_SANITIZE_SRC; + + off_reg = issrc ? insn->src_reg : insn->dst_reg; + if (isneg) + *patch++ = BPF_ALU64_IMM(BPF_MUL, off_reg, -1); + *patch++ = BPF_MOV32_IMM(BPF_REG_AX, aux->alu_limit - 1); + *patch++ = BPF_ALU64_REG(BPF_SUB, BPF_REG_AX, off_reg); + *patch++ = BPF_ALU64_REG(BPF_OR, BPF_REG_AX, off_reg); + *patch++ = BPF_ALU64_IMM(BPF_NEG, BPF_REG_AX, 0); + *patch++ = BPF_ALU64_IMM(BPF_ARSH, BPF_REG_AX, 63); + if (issrc) { + *patch++ = BPF_ALU64_REG(BPF_AND, BPF_REG_AX, + off_reg); + insn->src_reg = BPF_REG_AX; + } else { + *patch++ = BPF_ALU64_REG(BPF_AND, off_reg, + BPF_REG_AX); + } + if (isneg) + insn->code = insn->code == code_add ? + code_sub : code_add; + *patch++ = *insn; + if (issrc && isneg) + *patch++ = BPF_ALU64_IMM(BPF_MUL, off_reg, -1); + cnt = patch - insn_buf; + + new_prog = bpf_patch_insn_data(env, i + delta, insn_buf, cnt); + if (!new_prog) + return -ENOMEM; + + delta += cnt - 1; + env->prog = prog = new_prog; + insn = new_prog->insnsi + i + delta; + continue; + } + if (insn->code != (BPF_JMP | BPF_CALL)) continue; if (insn->src_reg == BPF_PSEUDO_CALL) diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c index ce32cf741b25..76801b9b481e 100644 --- a/kernel/time/posix-cpu-timers.c +++ b/kernel/time/posix-cpu-timers.c @@ -685,6 +685,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags, * set up the signal and overrun bookkeeping. */ timer->it.cpu.incr = timespec64_to_ns(&new->it_interval); + timer->it_interval = ns_to_ktime(timer->it.cpu.incr); /* * This acts as a modification timestamp for the timer, diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 93e73ccb4dec..9e45553cabd6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5538,18 +5538,6 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone, cond_resched(); } } -#ifdef CONFIG_SPARSEMEM - /* - * If the zone does not span the rest of the section then - * we should at least initialize those pages. Otherwise we - * could blow up on a poisoned page in some paths which depend - * on full sections being initialized (e.g. memory hotplug). - */ - while (end_pfn % PAGES_PER_SECTION) { - __init_single_page(pfn_to_page(end_pfn), end_pfn, zone, nid); - end_pfn++; - } -#endif } static void __meminit zone_init_free_lists(struct zone *zone) diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c index 2cb8da465b98..48ddc60b4fbd 100644 --- a/net/bridge/br_forward.c +++ b/net/bridge/br_forward.c @@ -36,10 +36,10 @@ static inline int should_deliver(const struct net_bridge_port *p, int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb) { + skb_push(skb, ETH_HLEN); if (!is_skb_forwardable(skb->dev, skb)) goto drop; - skb_push(skb, ETH_HLEN); br_drop_fake_rtable(skb); if (skb->ip_summed == CHECKSUM_PARTIAL && @@ -98,12 +98,11 @@ static void __br_forward(const struct net_bridge_port *to, net = dev_net(indev); } else { if (unlikely(netpoll_tx_running(to->br->dev))) { - if (!is_skb_forwardable(skb->dev, skb)) { + skb_push(skb, ETH_HLEN); + if (!is_skb_forwardable(skb->dev, skb)) kfree_skb(skb); - } else { - skb_push(skb, ETH_HLEN); + else br_netpoll_send_skb(to, skb); - } return; } br_hook = NF_BR_LOCAL_OUT; diff --git a/net/bridge/br_netfilter_ipv6.c b/net/bridge/br_netfilter_ipv6.c index 96c072e71ea2..5811208863b7 100644 --- a/net/bridge/br_netfilter_ipv6.c +++ b/net/bridge/br_netfilter_ipv6.c @@ -131,6 +131,7 @@ int br_validate_ipv6(struct net *net, struct sk_buff *skb) IPSTATS_MIB_INDISCARDS); goto drop; } + hdr = ipv6_hdr(skb); } if (hdr->nexthdr == NEXTHDR_HOP && br_nf_check_hbh_len(skb)) goto drop; diff --git a/net/bridge/netfilter/nft_reject_bridge.c b/net/bridge/netfilter/nft_reject_bridge.c index 08cbed7d940e..419e8edf23ba 100644 --- a/net/bridge/netfilter/nft_reject_bridge.c +++ b/net/bridge/netfilter/nft_reject_bridge.c @@ -229,6 +229,7 @@ static bool reject6_br_csum_ok(struct sk_buff *skb, int hook) pskb_trim_rcsum(skb, ntohs(ip6h->payload_len) + sizeof(*ip6h))) return false; + ip6h = ipv6_hdr(skb); thoff = ipv6_skip_exthdr(skb, ((u8*)(ip6h+1) - skb->data), &proto, &fo); if (thoff < 0 || thoff >= skb->len || (fo & htons(~0x7)) != 0) return false; diff --git a/net/can/bcm.c b/net/can/bcm.c index 0af8f0db892a..79bb8afa9c0c 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -67,6 +67,9 @@ */ #define MAX_NFRAMES 256 +/* limit timers to 400 days for sending/timeouts */ +#define BCM_TIMER_SEC_MAX (400 * 24 * 60 * 60) + /* use of last_frames[index].flags */ #define RX_RECV 0x40 /* received data for this element */ #define RX_THR 0x80 /* element not been sent due to throttle feature */ @@ -140,6 +143,22 @@ static inline ktime_t bcm_timeval_to_ktime(struct bcm_timeval tv) return ktime_set(tv.tv_sec, tv.tv_usec * NSEC_PER_USEC); } +/* check limitations for timeval provided by user */ +static bool bcm_is_invalid_tv(struct bcm_msg_head *msg_head) +{ + if ((msg_head->ival1.tv_sec < 0) || + (msg_head->ival1.tv_sec > BCM_TIMER_SEC_MAX) || + (msg_head->ival1.tv_usec < 0) || + (msg_head->ival1.tv_usec >= USEC_PER_SEC) || + (msg_head->ival2.tv_sec < 0) || + (msg_head->ival2.tv_sec > BCM_TIMER_SEC_MAX) || + (msg_head->ival2.tv_usec < 0) || + (msg_head->ival2.tv_usec >= USEC_PER_SEC)) + return true; + + return false; +} + #define CFSIZ(flags) ((flags & CAN_FD_FRAME) ? CANFD_MTU : CAN_MTU) #define OPSIZ sizeof(struct bcm_op) #define MHSIZ sizeof(struct bcm_msg_head) @@ -873,6 +892,10 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, if (msg_head->nframes < 1 || msg_head->nframes > MAX_NFRAMES) return -EINVAL; + /* check timeval limitations */ + if ((msg_head->flags & SETTIMER) && bcm_is_invalid_tv(msg_head)) + return -EINVAL; + /* check the given can_id */ op = bcm_find_op(&bo->tx_ops, msg_head, ifindex); if (op) { @@ -1053,6 +1076,10 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, (!(msg_head->can_id & CAN_RTR_FLAG)))) return -EINVAL; + /* check timeval limitations */ + if ((msg_head->flags & SETTIMER) && bcm_is_invalid_tv(msg_head)) + return -EINVAL; + /* check the given can_id */ op = bcm_find_op(&bo->rx_ops, msg_head, ifindex); if (op) { diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 0113993e9b2c..958e185a8e8d 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -203,7 +203,7 @@ static void fib_flush(struct net *net) struct fib_table *tb; hlist_for_each_entry_safe(tb, tmp, head, tb_hlist) - flushed += fib_table_flush(net, tb); + flushed += fib_table_flush(net, tb, false); } if (flushed) @@ -1357,7 +1357,7 @@ static void ip_fib_net_exit(struct net *net) hlist_for_each_entry_safe(tb, tmp, head, tb_hlist) { hlist_del(&tb->tb_hlist); - fib_table_flush(net, tb); + fib_table_flush(net, tb, true); fib_free_table(tb); } } diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 5bc0c89e81e4..3955a6d7ea66 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1856,7 +1856,7 @@ void fib_table_flush_external(struct fib_table *tb) } /* Caller must hold RTNL. */ -int fib_table_flush(struct net *net, struct fib_table *tb) +int fib_table_flush(struct net *net, struct fib_table *tb, bool flush_all) { struct trie *t = (struct trie *)tb->tb_data; struct key_vector *pn = t->kv; @@ -1904,8 +1904,17 @@ int fib_table_flush(struct net *net, struct fib_table *tb) hlist_for_each_entry_safe(fa, tmp, &n->leaf, fa_list) { struct fib_info *fi = fa->fa_info; - if (!fi || !(fi->fib_flags & RTNH_F_DEAD) || - tb->tb_id != fa->tb_id) { + if (!fi || tb->tb_id != fa->tb_id || + (!(fi->fib_flags & RTNH_F_DEAD) && + !fib_props[fa->fa_type].error)) { + slen = fa->fa_slen; + continue; + } + + /* Do not flush error routes if network namespace is + * not being dismantled + */ + if (!flush_all && fib_props[fa->fa_type].error) { slen = fa->fa_slen; continue; } diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 5ef5df3a06f1..0bfad3e72509 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -570,8 +570,7 @@ static void gre_fb_xmit(struct sk_buff *skb, struct net_device *dev, dev->stats.tx_dropped++; } -static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev, - __be16 proto) +static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev) { struct ip_tunnel *tunnel = netdev_priv(dev); struct ip_tunnel_info *tun_info; @@ -579,10 +578,10 @@ static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev, struct erspan_metadata *md; struct rtable *rt = NULL; bool truncate = false; + __be16 df, proto; struct flowi4 fl; int tunnel_hlen; int version; - __be16 df; int nhoff; int thoff; @@ -627,18 +626,20 @@ static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev, if (version == 1) { erspan_build_header(skb, ntohl(tunnel_id_to_key32(key->tun_id)), ntohl(md->u.index), truncate, true); + proto = htons(ETH_P_ERSPAN); } else if (version == 2) { erspan_build_header_v2(skb, ntohl(tunnel_id_to_key32(key->tun_id)), md->u.md2.dir, get_hwid(&md->u.md2), truncate, true); + proto = htons(ETH_P_ERSPAN2); } else { goto err_free_rt; } gre_build_header(skb, 8, TUNNEL_SEQ, - htons(ETH_P_ERSPAN), 0, htonl(tunnel->o_seqno++)); + proto, 0, htonl(tunnel->o_seqno++)); df = key->tun_flags & TUNNEL_DONT_FRAGMENT ? htons(IP_DF) : 0; @@ -722,12 +723,13 @@ static netdev_tx_t erspan_xmit(struct sk_buff *skb, { struct ip_tunnel *tunnel = netdev_priv(dev); bool truncate = false; + __be16 proto; if (!pskb_inet_may_pull(skb)) goto free_skb; if (tunnel->collect_md) { - erspan_fb_xmit(skb, dev, skb->protocol); + erspan_fb_xmit(skb, dev); return NETDEV_TX_OK; } @@ -743,19 +745,22 @@ static netdev_tx_t erspan_xmit(struct sk_buff *skb, } /* Push ERSPAN header */ - if (tunnel->erspan_ver == 1) + if (tunnel->erspan_ver == 1) { erspan_build_header(skb, ntohl(tunnel->parms.o_key), tunnel->index, truncate, true); - else if (tunnel->erspan_ver == 2) + proto = htons(ETH_P_ERSPAN); + } else if (tunnel->erspan_ver == 2) { erspan_build_header_v2(skb, ntohl(tunnel->parms.o_key), tunnel->dir, tunnel->hwid, truncate, true); - else + proto = htons(ETH_P_ERSPAN2); + } else { goto free_skb; + } tunnel->parms.o_flags &= ~TUNNEL_KEY; - __gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_ERSPAN)); + __gre_xmit(skb, dev, &tunnel->parms.iph, proto); return NETDEV_TX_OK; free_skb: diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index 27c863f6dd83..6f977b0fef54 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -489,6 +489,7 @@ static struct sk_buff *ip_rcv_core(struct sk_buff *skb, struct net *net) goto drop; } + iph = ip_hdr(skb); skb->transport_header = skb->network_header + iph->ihl*4; /* Remove any debris in the socket control block */ diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index a32a0f4cc138..87fe44197aa1 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1186,7 +1186,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size) flags = msg->msg_flags; if (flags & MSG_ZEROCOPY && size && sock_flag(sk, SOCK_ZEROCOPY)) { - if (sk->sk_state != TCP_ESTABLISHED) { + if ((1 << sk->sk_state) & ~(TCPF_ESTABLISHED | TCPF_CLOSE_WAIT)) { err = -EINVAL; goto out_err; } diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index f8183fdce5b2..e45a5e19e509 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -785,15 +785,23 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4, const int hlen = skb_network_header_len(skb) + sizeof(struct udphdr); - if (hlen + cork->gso_size > cork->fragsize) + if (hlen + cork->gso_size > cork->fragsize) { + kfree_skb(skb); return -EINVAL; - if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) + } + if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) { + kfree_skb(skb); return -EINVAL; - if (sk->sk_no_check_tx) + } + if (sk->sk_no_check_tx) { + kfree_skb(skb); return -EINVAL; + } if (skb->ip_summed != CHECKSUM_PARTIAL || is_udplite || - dst_xfrm(skb_dst(skb))) + dst_xfrm(skb_dst(skb))) { + kfree_skb(skb); return -EIO; + } skb_shinfo(skb)->gso_size = cork->gso_size; skb_shinfo(skb)->gso_type = SKB_GSO_UDP_L4; diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index c270726b01b0..345e6839f031 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -938,6 +938,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb, __u8 dsfield = false; struct flowi6 fl6; int err = -EINVAL; + __be16 proto; __u32 mtu; int nhoff; int thoff; @@ -1051,8 +1052,9 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb, } /* Push GRE header. */ - gre_build_header(skb, 8, TUNNEL_SEQ, - htons(ETH_P_ERSPAN), 0, htonl(t->o_seqno++)); + proto = (t->parms.erspan_ver == 1) ? htons(ETH_P_ERSPAN) + : htons(ETH_P_ERSPAN2); + gre_build_header(skb, 8, TUNNEL_SEQ, proto, 0, htonl(t->o_seqno++)); /* TooBig packet may have updated dst->dev's mtu */ if (!t->parms.collect_md && dst && dst_mtu(dst) > dst->dev->mtu) @@ -1185,6 +1187,10 @@ static void ip6gre_tnl_copy_tnl_parm(struct ip6_tnl *t, t->parms.i_flags = p->i_flags; t->parms.o_flags = p->o_flags; t->parms.fwmark = p->fwmark; + t->parms.erspan_ver = p->erspan_ver; + t->parms.index = p->index; + t->parms.dir = p->dir; + t->parms.hwid = p->hwid; dst_cache_reset(&t->dst_cache); } @@ -2047,9 +2053,9 @@ static int ip6gre_changelink(struct net_device *dev, struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { - struct ip6gre_net *ign = net_generic(dev_net(dev), ip6gre_net_id); + struct ip6_tnl *t = netdev_priv(dev); + struct ip6gre_net *ign = net_generic(t->net, ip6gre_net_id); struct __ip6_tnl_parm p; - struct ip6_tnl *t; t = ip6gre_changelink_common(dev, tb, data, &p, extack); if (IS_ERR(t)) diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index b36694b6716e..76ba2f34ef6b 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1056,15 +1056,23 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6, const int hlen = skb_network_header_len(skb) + sizeof(struct udphdr); - if (hlen + cork->gso_size > cork->fragsize) + if (hlen + cork->gso_size > cork->fragsize) { + kfree_skb(skb); return -EINVAL; - if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) + } + if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) { + kfree_skb(skb); return -EINVAL; - if (udp_sk(sk)->no_check6_tx) + } + if (udp_sk(sk)->no_check6_tx) { + kfree_skb(skb); return -EINVAL; + } if (skb->ip_summed != CHECKSUM_PARTIAL || is_udplite || - dst_xfrm(skb_dst(skb))) + dst_xfrm(skb_dst(skb))) { + kfree_skb(skb); return -EIO; + } skb_shinfo(skb)->gso_size = cork->gso_size; skb_shinfo(skb)->gso_type = SKB_GSO_UDP_L4; diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c index 865ecef68196..c7b6010b2c09 100644 --- a/net/openvswitch/flow_netlink.c +++ b/net/openvswitch/flow_netlink.c @@ -500,7 +500,7 @@ static int __parse_flow_nlattrs(const struct nlattr *attr, return -EINVAL; } - if (!nz || !is_all_zero(nla_data(nla), expected_len)) { + if (!nz || !is_all_zero(nla_data(nla), nla_len(nla))) { attrs |= 1 << type; a[type] = nla; } diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c index 681f6f04e7da..0f6601fdf889 100644 --- a/net/sched/act_tunnel_key.c +++ b/net/sched/act_tunnel_key.c @@ -197,6 +197,15 @@ static const struct nla_policy tunnel_key_policy[TCA_TUNNEL_KEY_MAX + 1] = { [TCA_TUNNEL_KEY_ENC_TTL] = { .type = NLA_U8 }, }; +static void tunnel_key_release_params(struct tcf_tunnel_key_params *p) +{ + if (!p) + return; + if (p->tcft_action == TCA_TUNNEL_KEY_ACT_SET) + dst_release(&p->tcft_enc_metadata->dst); + kfree_rcu(p, rcu); +} + static int tunnel_key_init(struct net *net, struct nlattr *nla, struct nlattr *est, struct tc_action **a, int ovr, int bind, bool rtnl_held, @@ -360,8 +369,7 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla, rcu_swap_protected(t->params, params_new, lockdep_is_held(&t->tcf_lock)); spin_unlock_bh(&t->tcf_lock); - if (params_new) - kfree_rcu(params_new, rcu); + tunnel_key_release_params(params_new); if (ret == ACT_P_CREATED) tcf_idr_insert(tn, *a); @@ -385,12 +393,7 @@ static void tunnel_key_release(struct tc_action *a) struct tcf_tunnel_key_params *params; params = rcu_dereference_protected(t->params, 1); - if (params) { - if (params->tcft_action == TCA_TUNNEL_KEY_ACT_SET) - dst_release(¶ms->tcft_enc_metadata->dst); - - kfree_rcu(params, rcu); - } + tunnel_key_release_params(params); } static int tunnel_key_geneve_opts_dump(struct sk_buff *skb, diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 70f144ac5e1d..2167c6ca55e3 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -960,7 +960,6 @@ static int tcf_block_cb_call(struct tcf_block *block, enum tc_setup_type type, int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, struct tcf_result *res, bool compat_mode) { - __be16 protocol = tc_skb_protocol(skb); #ifdef CONFIG_NET_CLS_ACT const int max_reclassify_loop = 4; const struct tcf_proto *orig_tp = tp; @@ -970,6 +969,7 @@ int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, reclassify: #endif for (; tp; tp = rcu_dereference_bh(tp->next)) { + __be16 protocol = tc_skb_protocol(skb); int err; if (tp->protocol != protocol && @@ -1002,7 +1002,6 @@ int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, } tp = first_tp; - protocol = tc_skb_protocol(skb); goto reclassify; #endif } diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index 7fade7107f95..84893bc67531 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -1176,17 +1176,23 @@ static int fl_change(struct net *net, struct sk_buff *in_skb, struct cls_fl_head *head = rtnl_dereference(tp->root); struct cls_fl_filter *fold = *arg; struct cls_fl_filter *fnew; + struct fl_flow_mask *mask; struct nlattr **tb; - struct fl_flow_mask mask = {}; int err; if (!tca[TCA_OPTIONS]) return -EINVAL; - tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); - if (!tb) + mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL); + if (!mask) return -ENOBUFS; + tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL); + if (!tb) { + err = -ENOBUFS; + goto errout_mask_alloc; + } + err = nla_parse_nested(tb, TCA_FLOWER_MAX, tca[TCA_OPTIONS], fl_policy, NULL); if (err < 0) @@ -1229,12 +1235,12 @@ static int fl_change(struct net *net, struct sk_buff *in_skb, } } - err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr, + err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr, tp->chain->tmplt_priv, extack); if (err) goto errout_idr; - err = fl_check_assign_mask(head, fnew, fold, &mask); + err = fl_check_assign_mask(head, fnew, fold, mask); if (err) goto errout_idr; @@ -1281,6 +1287,7 @@ static int fl_change(struct net *net, struct sk_buff *in_skb, } kfree(tb); + kfree(mask); return 0; errout_mask: @@ -1294,6 +1301,8 @@ static int fl_change(struct net *net, struct sk_buff *in_skb, kfree(fnew); errout_tb: kfree(tb); +errout_mask_alloc: + kfree(mask); return err; } diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index f9176e3b4d37..31a84a5a1338 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -931,6 +931,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = { SND_PCI_QUIRK(0x103c, 0x814f, "HP ZBook 15u G3", CXT_FIXUP_MUTE_LED_GPIO), SND_PCI_QUIRK(0x103c, 0x822e, "HP ProBook 440 G4", CXT_FIXUP_MUTE_LED_GPIO), SND_PCI_QUIRK(0x103c, 0x836e, "HP ProBook 455 G5", CXT_FIXUP_MUTE_LED_GPIO), + SND_PCI_QUIRK(0x103c, 0x837f, "HP ProBook 470 G5", CXT_FIXUP_MUTE_LED_GPIO), SND_PCI_QUIRK(0x103c, 0x8299, "HP 800 G3 SFF", CXT_FIXUP_HP_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x103c, 0x829a, "HP 800 G3 DM", CXT_FIXUP_HP_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x103c, 0x8455, "HP Z2 G4", CXT_FIXUP_HP_MIC_NO_PRESENCE), diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 8b9f2487969b..f39f34e12fb6 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6842,7 +6842,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = { {.id = ALC293_FIXUP_LENOVO_SPK_NOISE, .name = "lenovo-spk-noise"}, {.id = ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY, .name = "lenovo-hotkey"}, {.id = ALC255_FIXUP_DELL_SPK_NOISE, .name = "dell-spk-noise"}, - {.id = ALC225_FIXUP_DELL1_MIC_NO_PRESENCE, .name = "alc255-dell1"}, + {.id = ALC225_FIXUP_DELL1_MIC_NO_PRESENCE, .name = "alc225-dell1"}, {.id = ALC295_FIXUP_DISABLE_DAC3, .name = "alc295-disable-dac3"}, {.id = ALC280_FIXUP_HP_HEADSET_MIC, .name = "alc280-hp-headset"}, {.id = ALC221_FIXUP_HP_FRONT_MIC, .name = "alc221-hp-mic"}, diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index 6478d10c4f4a..cdb1f40009ab 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -278,6 +278,8 @@ static int rt5514_spi_pcm_probe(struct snd_soc_component *component) rt5514_dsp = devm_kzalloc(component->dev, sizeof(*rt5514_dsp), GFP_KERNEL); + if (!rt5514_dsp) + return -ENOMEM; rt5514_dsp->dev = &rt5514_spi->dev; mutex_init(&rt5514_dsp->dma_lock); diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c index e2b5a11b16d1..f03195d2ab2e 100644 --- a/sound/soc/codecs/tlv320aic32x4.c +++ b/sound/soc/codecs/tlv320aic32x4.c @@ -822,6 +822,10 @@ static int aic32x4_set_bias_level(struct snd_soc_component *component, case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: + /* Initial cold start */ + if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) + break; + /* Switch off BCLK_N Divider */ snd_soc_component_update_bits(component, AIC32X4_BCLKN, AIC32X4_BCLKEN, 0); diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c index 6c36da560877..e662400873ec 100644 --- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c +++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c @@ -399,7 +399,13 @@ static int sst_media_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { - snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); + int ret; + + ret = + snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(params)); + if (ret) + return ret; memset(substream->runtime->dma_area, 0, params_buffer_bytes(params)); return 0; } diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c index 460b4bdf4c1e..5d546dcdbc80 100644 --- a/tools/testing/selftests/x86/protection_keys.c +++ b/tools/testing/selftests/x86/protection_keys.c @@ -1133,6 +1133,21 @@ void test_pkey_syscalls_bad_args(int *ptr, u16 pkey) pkey_assert(err); } +void become_child(void) +{ + pid_t forkret; + + forkret = fork(); + pkey_assert(forkret >= 0); + dprintf3("[%d] fork() ret: %d\n", getpid(), forkret); + + if (!forkret) { + /* in the child */ + return; + } + exit(0); +} + /* Assumes that all pkeys other than 'pkey' are unallocated */ void test_pkey_alloc_exhaust(int *ptr, u16 pkey) { @@ -1141,7 +1156,7 @@ void test_pkey_alloc_exhaust(int *ptr, u16 pkey) int nr_allocated_pkeys = 0; int i; - for (i = 0; i < NR_PKEYS*2; i++) { + for (i = 0; i < NR_PKEYS*3; i++) { int new_pkey; dprintf1("%s() alloc loop: %d\n", __func__, i); new_pkey = alloc_pkey(); @@ -1152,20 +1167,26 @@ void test_pkey_alloc_exhaust(int *ptr, u16 pkey) if ((new_pkey == -1) && (errno == ENOSPC)) { dprintf2("%s() failed to allocate pkey after %d tries\n", __func__, nr_allocated_pkeys); - break; + } else { + /* + * Ensure the number of successes never + * exceeds the number of keys supported + * in the hardware. + */ + pkey_assert(nr_allocated_pkeys < NR_PKEYS); + allocated_pkeys[nr_allocated_pkeys++] = new_pkey; } - pkey_assert(nr_allocated_pkeys < NR_PKEYS); - allocated_pkeys[nr_allocated_pkeys++] = new_pkey; + + /* + * Make sure that allocation state is properly + * preserved across fork(). + */ + if (i == NR_PKEYS*2) + become_child(); } dprintf3("%s()::%d\n", __func__, __LINE__); - /* - * ensure it did not reach the end of the loop without - * failure: - */ - pkey_assert(i < NR_PKEYS*2); - /* * There are 16 pkeys supported in hardware. Three are * allocated by the time we get here: