diff --git a/Documentation/hw-vuln/mds.rst b/Documentation/hw-vuln/mds.rst index daf6fdac49a3..fbbd1719afb9 100644 --- a/Documentation/hw-vuln/mds.rst +++ b/Documentation/hw-vuln/mds.rst @@ -265,8 +265,11 @@ time with the option "mds=". The valid arguments for this option are:

============ =============================================================

-Not specifying this option is equivalent to "mds=full". - +Not specifying this option is equivalent to "mds=full". For processors +that are affected by both TAA (TSX Asynchronous Abort) and MDS, +specifying just "mds=off" without an accompanying "tsx_async_abort=off" +will have no effect as the same mitigation is used for both +vulnerabilities.

Mitigation selection guide -------------------------- diff --git a/Documentation/hw-vuln/tsx_async_abort.rst b/Documentation/hw-vuln/tsx_async_abort.rst index fddbd7579c53..af6865b822d2 100644 --- a/Documentation/hw-vuln/tsx_async_abort.rst +++ b/Documentation/hw-vuln/tsx_async_abort.rst @@ -174,7 +174,10 @@ the option "tsx_async_abort=". The valid arguments for this option are: CPU is not vulnerable to cross-thread TAA attacks. ============ =============================================================

-Not specifying this option is equivalent to "tsx_async_abort=full". +Not specifying this option is equivalent to "tsx_async_abort=full". For +processors that are affected by both TAA and MDS, specifying just +"tsx_async_abort=off" without an accompanying "mds=off" will have no +effect as the same mitigation is used for both vulnerabilities.

The kernel command line also allows to control the TSX feature using the parameter "tsx=" on CPUs which support TSX control. MSR_IA32_TSX_CTRL is used diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index c81a008d6512..1bc12619bedd 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2365,6 +2365,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. SMT on vulnerable CPUs off - Unconditionally disable MDS mitigation

+ On TAA-affected machines, mds=off can be prevented by + an active TAA mitigation as both vulnerabilities are + mitigated with the same mechanism so in order to disable + this mitigation, you need to specify tsx_async_abort=off + too. + Not specifying this option is equivalent to mds=full.

@@ -4599,6 +4605,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. vulnerable to cross-thread TAA attacks. off - Unconditionally disable TAA mitigation

+ On MDS-affected machines, tsx_async_abort=off can be + prevented by an active MDS mitigation as both vulnerabilities + are mitigated with the same mechanism so in order to disable + this mitigation, you need to specify mds=off too. + Not specifying this option is equivalent to tsx_async_abort=full. On CPUs which are MDS affected and deploy MDS mitigation, TAA mitigation is not diff --git a/Makefile b/Makefile index 174c0e2526ac..0234869784fa 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 9 -SUBLEVEL = 203 +SUBLEVEL = 204 EXTRAVERSION = NAME = Roaring Lionus

diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c index 2ce24e74f879..a509b77ef80d 100644 --- a/arch/arc/kernel/perf_event.c +++ b/arch/arc/kernel/perf_event.c @@ -488,8 +488,8 @@ static int arc_pmu_device_probe(struct platform_device *pdev) /* loop thru all available h/w condition indexes */ for (j = 0; j < cc_bcr.c; j++) { write_aux_reg(ARC_REG_CC_INDEX, j); - cc_name.indiv.word0 = read_aux_reg(ARC_REG_CC_NAME0); - cc_name.indiv.word1 = read_aux_reg(ARC_REG_CC_NAME1); + cc_name.indiv.word0 = le32_to_cpu(read_aux_reg(ARC_REG_CC_NAME0)); + cc_name.indiv.word1 = le32_to_cpu(read_aux_reg(ARC_REG_CC_NAME1));

/* See if it has been mapped to a perf event_id */ for (i = 0; i < ARRAY_SIZE(arc_pmu_ev_hw_map); i++) { diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 241bf898adf5..7edc6c3f4bd9 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -1188,6 +1188,9 @@ void __init adjust_lowmem_bounds(void) phys_addr_t block_start = reg->base; phys_addr_t block_end = reg->base + reg->size;

+ if (memblock_is_nomap(reg)) + continue; + if (reg->base < vmalloc_limit) { if (block_end > lowmem_limit) /* diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index ee94597773fa..8d469aa5fc98 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -134,6 +134,7 @@ archclean: $(Q)$(MAKE) $(clean)=$(boot) $(Q)$(MAKE) $(clean)=$(boot)/dts

+ifeq ($(KBUILD_EXTMOD),) # We need to generate vdso-offsets.h before compiling certain files in kernel/. # In order to do that, we should use the archprepare target, but we can't since # asm-offsets.h is included in some files used to generate vdso-offsets.h, and @@ -143,6 +144,7 @@ archclean: prepare: vdso_prepare vdso_prepare: prepare0 $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso include/generated/vdso-offsets.h +endif

define archhelp echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 28bef94cf792..5962badb3346 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -611,7 +611,6 @@ asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr) handler[reason], smp_processor_id(), esr, esr_get_class_string(esr));

- die("Oops - bad mode", regs, 0); local_irq_disable(); panic("bad mode"); } diff --git a/arch/m68k/kernel/uboot.c b/arch/m68k/kernel/uboot.c index b3536a82a262..e002084af101 100644 --- a/arch/m68k/kernel/uboot.c +++ b/arch/m68k/kernel/uboot.c @@ -103,5 +103,5 @@ __init void process_uboot_commandline(char *commandp, int size) }

parse_uboot_commandline(commandp, len); - commandp[size - 1] = 0; + commandp[len - 1] = 0; } diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h index f3daa175f86c..c06cfdf12c0b 100644 --- a/arch/powerpc/include/asm/asm-prototypes.h +++ b/arch/powerpc/include/asm/asm-prototypes.h @@ -124,7 +124,10 @@ extern int __ucmpdi2(u64, u64); /* Patch sites */ extern s32 patch__call_flush_count_cache; extern s32 patch__flush_count_cache_return; +extern s32 patch__flush_link_stack_return; +extern s32 patch__call_kvm_flush_link_stack;

extern long flush_count_cache; +extern long kvm_flush_link_stack;

#endif /* _ASM_POWERPC_ASM_PROTOTYPES_H */ diff --git a/arch/powerpc/include/asm/security_features.h b/arch/powerpc/include/asm/security_features.h index 759597bf0fd8..ccf44c135389 100644 --- a/arch/powerpc/include/asm/security_features.h +++ b/arch/powerpc/include/asm/security_features.h @@ -81,6 +81,9 @@ static inline bool security_ftr_enabled(unsigned long feature) // Software required to flush count cache on context switch #define SEC_FTR_FLUSH_COUNT_CACHE 0x0000000000000400ull

+// Software required to flush link stack on context switch +#define SEC_FTR_FLUSH_LINK_STACK 0x0000000000001000ull +

// Features enabled by default #define SEC_FTR_DEFAULT \ diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c index 1abd8dd77ec1..eee2131a97e6 100644 --- a/arch/powerpc/kernel/eeh_pe.c +++ b/arch/powerpc/kernel/eeh_pe.c @@ -370,7 +370,7 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev) while (parent) { if (!(parent->type & EEH_PE_INVALID)) break; - parent->type &= ~(EEH_PE_INVALID | EEH_PE_KEEP); + parent->type &= ~EEH_PE_INVALID; parent = parent->parent; }

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 390ebf4ef384..38f0a75014eb 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -510,6 +510,7 @@ flush_count_cache: /* Save LR into r9 */ mflr r9

+ // Flush the link stack .rept 64 bl .+4 .endr @@ -519,6 +520,11 @@ flush_count_cache: .balign 32 /* Restore LR */ 1: mtlr r9 + + // If we're just flushing the link stack, return here +3: nop + patch_site 3b patch__flush_link_stack_return + li r9,0x7fff mtctr r9

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 47c6c0401b3a..54c95e7c74cc 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -576,12 +576,11 @@ void flush_all_to_thread(struct task_struct *tsk) if (tsk->thread.regs) { preempt_disable(); BUG_ON(tsk != current); - save_all(tsk); - #ifdef CONFIG_SPE if (tsk->thread.regs->msr & MSR_SPE) tsk->thread.spefscr = mfspr(SPRN_SPEFSCR); #endif + save_all(tsk);

preempt_enable(); } diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c index f4a98d9c5913..11fff9669cfd 100644 --- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -25,11 +25,12 @@ enum count_cache_flush_type { COUNT_CACHE_FLUSH_HW = 0x4, }; static enum count_cache_flush_type count_cache_flush_type = COUNT_CACHE_FLUSH_NONE; +static bool link_stack_flush_enabled;

bool barrier_nospec_enabled; static bool no_nospec; static bool btb_flush_enabled; -#ifdef CONFIG_PPC_FSL_BOOK3E +#if defined(CONFIG_PPC_FSL_BOOK3E) || defined(CONFIG_PPC_BOOK3S_64) static bool no_spectrev2; #endif

@@ -107,7 +108,7 @@ static __init int barrier_nospec_debugfs_init(void) device_initcall(barrier_nospec_debugfs_init); #endif /* CONFIG_DEBUG_FS */

-#ifdef CONFIG_PPC_FSL_BOOK3E +#if defined(CONFIG_PPC_FSL_BOOK3E) || defined(CONFIG_PPC_BOOK3S_64) static int __init handle_nospectre_v2(char *p) { no_spectrev2 = true; @@ -115,6 +116,9 @@ static int __init handle_nospectre_v2(char *p) return 0; } early_param("nospectre_v2", handle_nospectre_v2); +#endif /* CONFIG_PPC_FSL_BOOK3E || CONFIG_PPC_BOOK3S_64 */ + +#ifdef CONFIG_PPC_FSL_BOOK3E void setup_spectre_v2(void) { if (no_spectrev2) @@ -202,11 +206,19 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, c

if (ccd) seq_buf_printf(&s, "Indirect branch cache disabled"); + + if (link_stack_flush_enabled) + seq_buf_printf(&s, ", Software link stack flush"); + } else if (count_cache_flush_type != COUNT_CACHE_FLUSH_NONE) { seq_buf_printf(&s, "Mitigation: Software count cache flush");

if (count_cache_flush_type == COUNT_CACHE_FLUSH_HW) seq_buf_printf(&s, " (hardware accelerated)"); + + if (link_stack_flush_enabled) + seq_buf_printf(&s, ", Software link stack flush"); + } else if (btb_flush_enabled) { seq_buf_printf(&s, "Mitigation: Branch predictor state flush"); } else { @@ -367,18 +379,49 @@ static __init int stf_barrier_debugfs_init(void) device_initcall(stf_barrier_debugfs_init); #endif /* CONFIG_DEBUG_FS */

+static void no_count_cache_flush(void) +{ + count_cache_flush_type = COUNT_CACHE_FLUSH_NONE; + pr_info("count-cache-flush: software flush disabled.\n"); +} + static void toggle_count_cache_flush(bool enable) { - if (!enable || !security_ftr_enabled(SEC_FTR_FLUSH_COUNT_CACHE)) { + if (!security_ftr_enabled(SEC_FTR_FLUSH_COUNT_CACHE) && + !security_ftr_enabled(SEC_FTR_FLUSH_LINK_STACK)) + enable = false; + + if (!enable) { patch_instruction_site(&patch__call_flush_count_cache, PPC_INST_NOP); - count_cache_flush_type = COUNT_CACHE_FLUSH_NONE; - pr_info("count-cache-flush: software flush disabled.\n"); +#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE + patch_instruction_site(&patch__call_kvm_flush_link_stack, PPC_INST_NOP); +#endif + pr_info("link-stack-flush: software flush disabled.\n"); + link_stack_flush_enabled = false; + no_count_cache_flush(); return; }

+ // This enables the branch from _switch to flush_count_cache patch_branch_site(&patch__call_flush_count_cache, (u64)&flush_count_cache, BRANCH_SET_LINK);

+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE + // This enables the branch from guest_exit_cont to kvm_flush_link_stack + patch_branch_site(&patch__call_kvm_flush_link_stack, + (u64)&kvm_flush_link_stack, BRANCH_SET_LINK); +#endif + + pr_info("link-stack-flush: software flush enabled.\n"); + link_stack_flush_enabled = true; + + // If we just need to flush the link stack, patch an early return + if (!security_ftr_enabled(SEC_FTR_FLUSH_COUNT_CACHE)) { + patch_instruction_site(&patch__flush_link_stack_return, PPC_INST_BLR); + no_count_cache_flush(); + return; + } + if (!security_ftr_enabled(SEC_FTR_BCCTR_FLUSH_ASSIST)) { count_cache_flush_type = COUNT_CACHE_FLUSH_SW; pr_info("count-cache-flush: full software flush sequence enabled.\n"); @@ -392,7 +435,26 @@ static void toggle_count_cache_flush(bool enable)

void setup_count_cache_flush(void) { - toggle_count_cache_flush(true); + bool enable = true; + + if (no_spectrev2 || cpu_mitigations_off()) { + if (security_ftr_enabled(SEC_FTR_BCCTRL_SERIALISED) || + security_ftr_enabled(SEC_FTR_COUNT_CACHE_DISABLED)) + pr_warn("Spectre v2 mitigations not fully under software control, can't disable\n"); + + enable = false; + } + + /* + * There's no firmware feature flag/hypervisor bit to tell us we need to + * flush the link stack on context switch. So we set it here if we see + * either of the Spectre v2 mitigations that aim to protect userspace. + */ + if (security_ftr_enabled(SEC_FTR_COUNT_CACHE_DISABLED) || + security_ftr_enabled(SEC_FTR_FLUSH_COUNT_CACHE)) + security_ftr_set(SEC_FTR_FLUSH_LINK_STACK); + + toggle_count_cache_flush(enable); }

#ifdef CONFIG_DEBUG_FS diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 79a180cf4c94..4b60bec20603 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -18,6 +18,7 @@ */

#include <asm/ppc_asm.h> +#include <asm/code-patching-asm.h> #include <asm/kvm_asm.h> #include <asm/reg.h> #include <asm/mmu.h> @@ -1266,6 +1267,10 @@ mc_cont: bl kvmhv_accumulate_time #endif

+ /* Possibly flush the link stack here. */ +1: nop + patch_site 1b patch__call_kvm_flush_link_stack + stw r12, STACK_SLOT_TRAP(r1) mr r3, r12 /* Increment exit count, poke other threads to exit */ @@ -1685,6 +1690,28 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) mtlr r0 blr

+.balign 32 +.global kvm_flush_link_stack +kvm_flush_link_stack: + /* Save LR into r0 */ + mflr r0 + + /* Flush the link stack. On Power8 it's up to 32 entries in size. */ + .rept 32 + bl .+4 + .endr + + /* And on Power9 it's up to 64. */ +BEGIN_FTR_SECTION + .rept 32 + bl .+4 + .endr +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) + + /* Restore LR */ + mtlr r0 + blr + /* * Check whether an HDSI is an HPTE not found fault or something else. * If it is an HPTE not found fault that is due to the guest accessing diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c index 3db53e8aff92..9b2ef76578f0 100644 --- a/arch/powerpc/platforms/ps3/os-area.c +++ b/arch/powerpc/platforms/ps3/os-area.c @@ -664,7 +664,7 @@ static int update_flash_db(void) db_set_64(db, &os_area_db_id_rtc_diff, saved_params.rtc_diff);

count = os_area_flash_write(db, sizeof(struct os_area_db), pos); - if (count < sizeof(struct os_area_db)) { + if (count < 0 || count < sizeof(struct os_area_db)) { pr_debug("%s: os_area_flash_write failed %zd\n", __func__, count); error = count < 0 ? count : -EIO; diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c index c0a0947f43bb..656bbbd731d0 100644 --- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -616,7 +616,7 @@ static int dlpar_add_lmb(struct of_drconf_cell *lmb) nid = memory_add_physaddr_to_nid(lmb->base_addr);

/* Add the memory */ - rc = add_memory(nid, lmb->base_addr, block_sz); + rc = __add_memory(nid, lmb->base_addr, block_sz); if (rc) { dlpar_remove_device_tree_lmb(lmb); dlpar_release_drc(lmb->drc_index); diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index 96e4fcad57bf..f46e5c0cb6d9 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -1611,14 +1611,17 @@ static int __init init_cpum_sampling_pmu(void) }

sfdbg = debug_register(KMSG_COMPONENT, 2, 1, 80); - if (!sfdbg) + if (!sfdbg) { pr_err("Registering for s390dbf failed\n"); + return -ENOMEM; + } debug_register_view(sfdbg, &debug_sprintf_view);

err = register_external_irq(EXT_IRQ_MEASURE_ALERT, cpumf_measurement_alert); if (err) { pr_cpumsf_err(RS_INIT_FAILURE_ALRT); + debug_unregister(sfdbg); goto out; }

@@ -1627,6 +1630,7 @@ static int __init init_cpum_sampling_pmu(void) pr_cpumsf_err(RS_INIT_FAILURE_PERF); unregister_external_irq(EXT_IRQ_MEASURE_ALERT, cpumf_measurement_alert); + debug_unregister(sfdbg); goto out; }

diff --git a/arch/sparc/include/asm/cmpxchg_64.h b/arch/sparc/include/asm/cmpxchg_64.h index faa2f61058c2..92f0a46ace78 100644 --- a/arch/sparc/include/asm/cmpxchg_64.h +++ b/arch/sparc/include/asm/cmpxchg_64.h @@ -40,7 +40,12 @@ static inline unsigned long xchg64(__volatile__ unsigned long *m, unsigned long return val; }

-#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) +#define xchg(ptr,x) \ +({ __typeof__(*(ptr)) __ret; \ + __ret = (__typeof__(*(ptr))) \ + __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))); \ + __ret; \ +})

void __xchg_called_with_bad_pointer(void);

diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h index f005ccac91cc..e87c0f81b700 100644 --- a/arch/sparc/include/asm/parport.h +++ b/arch/sparc/include/asm/parport.h @@ -20,6 +20,7 @@ */ #define HAS_DMA

+#ifdef CONFIG_PARPORT_PC_FIFO static DEFINE_SPINLOCK(dma_spin_lock);

#define claim_dma_lock() \ @@ -30,6 +31,7 @@ static DEFINE_SPINLOCK(dma_spin_lock);

#define release_dma_lock(__flags) \ spin_unlock_irqrestore(&dma_spin_lock, __flags); +#endif

static struct sparc_ebus_info { struct ebus_dma_info info; diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index 62087028a9ce..d2ad45c10113 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -260,7 +260,7 @@ static irqreturn_t line_write_interrupt(int irq, void *data) if (err == 0) { spin_unlock(&line->lock); return IRQ_NONE; - } else if (err < 0) { + } else if ((err < 0) && (err != -EAGAIN)) { line->head = line->buffer; line->tail = line->buffer; } diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h index ea78a8438a8a..fb489cd848fa 100644 --- a/arch/x86/include/asm/ptrace.h +++ b/arch/x86/include/asm/ptrace.h @@ -199,24 +199,52 @@ static inline int regs_within_kernel_stack(struct pt_regs *regs, (kernel_stack_pointer(regs) & ~(THREAD_SIZE - 1))); }

+/** + * regs_get_kernel_stack_nth_addr() - get the address of the Nth entry on stack + * @regs: pt_regs which contains kernel stack pointer. + * @n: stack entry number. + * + * regs_get_kernel_stack_nth() returns the address of the @n th entry of the + * kernel stack which is specified by @regs. If the @n th entry is NOT in + * the kernel stack, this returns NULL. + */ +static inline unsigned long *regs_get_kernel_stack_nth_addr(struct pt_regs *regs, unsigned int n) +{ + unsigned long *addr = (unsigned long *)kernel_stack_pointer(regs); + + addr += n; + if (regs_within_kernel_stack(regs, (unsigned long)addr)) + return addr; + else + return NULL; +} + +/* To avoid include hell, we can't include uaccess.h */ +extern long probe_kernel_read(void *dst, const void *src, size_t size); + /** * regs_get_kernel_stack_nth() - get Nth entry of the stack * @regs: pt_regs which contains kernel stack pointer. * @n: stack entry number. * * regs_get_kernel_stack_nth() returns @n th entry of the kernel stack which - * is specified by @regs. If the @n th entry is NOT in the kernel stack, + * is specified by @regs. If the @n th entry is NOT in the kernel stack * this returns 0. */ static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n) { - unsigned long *addr = (unsigned long *)kernel_stack_pointer(regs); - addr += n; - if (regs_within_kernel_stack(regs, (unsigned long)addr)) - return *addr; - else - return 0; + unsigned long *addr; + unsigned long val; + long ret; + + addr = regs_get_kernel_stack_nth_addr(regs, n); + if (addr) { + ret = probe_kernel_read(&val, addr, sizeof(val)); + if (!ret) + return val; + } + return 0; }

#define arch_has_single_step() (1) diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 827fc38df97a..24307d5bb4b8 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -38,6 +38,7 @@ static void __init spectre_v2_select_mitigation(void); static void __init ssb_select_mitigation(void); static void __init l1tf_select_mitigation(void); static void __init mds_select_mitigation(void); +static void __init mds_print_mitigation(void); static void __init taa_select_mitigation(void);

/* The base value of the SPEC_CTRL MSR that always has to be preserved. */ @@ -107,6 +108,12 @@ void __init check_bugs(void) mds_select_mitigation(); taa_select_mitigation();

+ /* + * As MDS and TAA mitigations are inter-related, print MDS + * mitigation until after TAA mitigation selection is done. + */ + mds_print_mitigation(); + arch_smt_update();

#ifdef CONFIG_X86_32 @@ -244,6 +251,12 @@ static void __init mds_select_mitigation(void) (mds_nosmt || cpu_mitigations_auto_nosmt())) cpu_smt_disable(false); } +} + +static void __init mds_print_mitigation(void) +{ + if (!boot_cpu_has_bug(X86_BUG_MDS) || cpu_mitigations_off()) + return;

pr_info("%s\n", mds_strings[mds_mitigation]); } @@ -303,8 +316,12 @@ static void __init taa_select_mitigation(void) return; }

- /* TAA mitigation is turned off on the cmdline (tsx_async_abort=off) */ - if (taa_mitigation == TAA_MITIGATION_OFF) + /* + * TAA mitigation via VERW is turned off if both + * tsx_async_abort=off and mds=off are specified. + */ + if (taa_mitigation == TAA_MITIGATION_OFF && + mds_mitigation == MDS_MITIGATION_OFF) goto out;

if (boot_cpu_has(X86_FEATURE_MD_CLEAR)) @@ -338,6 +355,15 @@ static void __init taa_select_mitigation(void) if (taa_nosmt || cpu_mitigations_auto_nosmt()) cpu_smt_disable(false);

+ /* + * Update MDS mitigation, if necessary, as the mds_user_clear is + * now enabled for TAA mitigation. + */ + if (mds_mitigation == MDS_MITIGATION_OFF && + boot_cpu_has_bug(X86_BUG_MDS)) { + mds_mitigation = MDS_MITIGATION_FULL; + mds_select_mitigation(); + } out: pr_info("%s\n", taa_strings[taa_mitigation]); } diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index f0f180158c26..3a281a2decde 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2934,7 +2934,7 @@ static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu, * here. */ if (!is_error_noslot_pfn(pfn) && !kvm_is_reserved_pfn(pfn) && - level == PT_PAGE_TABLE_LEVEL && + !kvm_is_zone_device_pfn(pfn) && level == PT_PAGE_TABLE_LEVEL && PageTransCompoundMap(pfn_to_page(pfn)) && !mmu_gfn_lpage_is_disallowed(vcpu, gfn, PT_DIRECTORY_LEVEL)) { unsigned long mask; @@ -4890,9 +4890,9 @@ static bool kvm_mmu_zap_collapsible_spte(struct kvm *kvm, * the guest, and the guest page table is using 4K page size * mapping if the indirect sp has level = 1. */ - if (sp->role.direct && - !kvm_is_reserved_pfn(pfn) && - PageTransCompoundMap(pfn_to_page(pfn))) { + if (sp->role.direct && !kvm_is_reserved_pfn(pfn) && + !kvm_is_zone_device_pfn(pfn) && + PageTransCompoundMap(pfn_to_page(pfn))) { drop_spte(kvm, sptep); need_tlb_flush = 1; goto restart; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 4c0d6d0d6337..f76caa03f4f8 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1547,7 +1547,7 @@ static int __find_msr_index(struct vcpu_vmx *vmx, u32 msr) return -1; }

-static inline void __invvpid(int ext, u16 vpid, gva_t gva) +static inline void __invvpid(unsigned long ext, u16 vpid, gva_t gva) { struct { u64 vpid : 16; @@ -1561,7 +1561,7 @@ static inline void __invvpid(int ext, u16 vpid, gva_t gva) : : "a"(&operand), "c"(ext) : "cc", "memory"); }

-static inline void __invept(int ext, u64 eptp, gpa_t gpa) +static inline void __invept(unsigned long ext, u64 eptp, gpa_t gpa) { struct { u64 eptp, gpa; diff --git a/arch/x86/tools/gen-insn-attr-x86.awk b/arch/x86/tools/gen-insn-attr-x86.awk index a3d2c62fd805..0a3ad5dd1e8b 100644 --- a/arch/x86/tools/gen-insn-attr-x86.awk +++ b/arch/x86/tools/gen-insn-attr-x86.awk @@ -68,7 +68,7 @@ BEGIN {

lprefix1_expr = "\((66|!F3)\)" lprefix2_expr = "\(F3\)" - lprefix3_expr = "\((F2|!F3|66\&F2)\)" + lprefix3_expr = "\((F2|!F3|66&F2)\)" lprefix_expr = "\((66|F2|F3)\)" max_lprefix = 4

@@ -256,7 +256,7 @@ function convert_operands(count,opnd, i,j,imm,mod) return add_flags(imm, mod) }

-/^[0-9a-f]+:/ { +/^[0-9a-f]+:/ { if (NR == 1) next # get index diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 6b0d3ef7309c..2ccfbb61ca89 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -228,7 +228,7 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) if (node < 0) node = memory_add_physaddr_to_nid(info->start_addr);

- result = add_memory(node, info->start_addr, info->length); + result = __add_memory(node, info->start_addr, info->length);

/* * If the memory block has been used by the kernel, add_memory() diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c index a0b88f148990..e23e2672a1d6 100644 --- a/drivers/atm/zatm.c +++ b/drivers/atm/zatm.c @@ -126,7 +126,7 @@ static unsigned long dummy[2] = {0,0}; #define zin_n(r) inl(zatm_dev->base+r*4) #define zin(r) inl(zatm_dev->base+uPD98401_##r*4) #define zout(v,r) outl(v,zatm_dev->base+uPD98401_##r*4) -#define zwait while (zin(CMR) & uPD98401_BUSY) +#define zwait() do {} while (zin(CMR) & uPD98401_BUSY)

/* RX0, RX1, TX0, TX1 */ static const int mbx_entries[NR_MBX] = { 1024,1024,1024,1024 }; @@ -140,7 +140,7 @@ static const int mbx_esize[NR_MBX] = { 16,16,4,4 }; /* entry size in bytes */

static void zpokel(struct zatm_dev *zatm_dev,u32 value,u32 addr) { - zwait; + zwait(); zout(value,CER); zout(uPD98401_IND_ACC | uPD98401_IA_BALL | (uPD98401_IA_TGT_CM << uPD98401_IA_TGT_SHIFT) | addr,CMR); @@ -149,10 +149,10 @@ static void zpokel(struct zatm_dev *zatm_dev,u32 value,u32 addr)

static u32 zpeekl(struct zatm_dev *zatm_dev,u32 addr) { - zwait; + zwait(); zout(uPD98401_IND_ACC | uPD98401_IA_BALL | uPD98401_IA_RW | (uPD98401_IA_TGT_CM << uPD98401_IA_TGT_SHIFT) | addr,CMR); - zwait; + zwait(); return zin(CER); }

@@ -241,7 +241,7 @@ static void refill_pool(struct atm_dev *dev,int pool) } if (first) { spin_lock_irqsave(&zatm_dev->lock, flags); - zwait; + zwait(); zout(virt_to_bus(first),CER); zout(uPD98401_ADD_BAT | (pool << uPD98401_POOL_SHIFT) | count, CMR); @@ -508,9 +508,9 @@ static int open_rx_first(struct atm_vcc *vcc) } if (zatm_vcc->pool < 0) return -EMSGSIZE; spin_lock_irqsave(&zatm_dev->lock, flags); - zwait; + zwait(); zout(uPD98401_OPEN_CHAN,CMR); - zwait; + zwait(); DPRINTK("0x%x 0x%x\n",zin(CMR),zin(CER)); chan = (zin(CMR) & uPD98401_CHAN_ADDR) >> uPD98401_CHAN_ADDR_SHIFT; spin_unlock_irqrestore(&zatm_dev->lock, flags); @@ -571,21 +571,21 @@ static void close_rx(struct atm_vcc *vcc) pos = vcc->vci >> 1; shift = (1-(vcc->vci & 1)) << 4; zpokel(zatm_dev,zpeekl(zatm_dev,pos) & ~(0xffff << shift),pos); - zwait; + zwait(); zout(uPD98401_NOP,CMR); - zwait; + zwait(); zout(uPD98401_NOP,CMR); spin_unlock_irqrestore(&zatm_dev->lock, flags); } spin_lock_irqsave(&zatm_dev->lock, flags); - zwait; + zwait(); zout(uPD98401_DEACT_CHAN | uPD98401_CHAN_RT | (zatm_vcc->rx_chan << uPD98401_CHAN_ADDR_SHIFT),CMR); - zwait; + zwait(); udelay(10); /* why oh why ... ? */ zout(uPD98401_CLOSE_CHAN | uPD98401_CHAN_RT | (zatm_vcc->rx_chan << uPD98401_CHAN_ADDR_SHIFT),CMR); - zwait; + zwait(); if (!(zin(CMR) & uPD98401_CHAN_ADDR)) printk(KERN_CRIT DEV_LABEL "(itf %d): can't close RX channel " "%d\n",vcc->dev->number,zatm_vcc->rx_chan); @@ -699,7 +699,7 @@ printk("NONONONOO!!!!\n"); skb_queue_tail(&zatm_vcc->tx_queue,skb); DPRINTK("QRP=0x%08lx\n",zpeekl(zatm_dev,zatm_vcc->tx_chan*VC_SIZE/4+ uPD98401_TXVC_QRP)); - zwait; + zwait(); zout(uPD98401_TX_READY | (zatm_vcc->tx_chan << uPD98401_CHAN_ADDR_SHIFT),CMR); spin_unlock_irqrestore(&zatm_dev->lock, flags); @@ -891,12 +891,12 @@ static void close_tx(struct atm_vcc *vcc) } spin_lock_irqsave(&zatm_dev->lock, flags); #if 0 - zwait; + zwait(); zout(uPD98401_DEACT_CHAN | (chan << uPD98401_CHAN_ADDR_SHIFT),CMR); #endif - zwait; + zwait(); zout(uPD98401_CLOSE_CHAN | (chan << uPD98401_CHAN_ADDR_SHIFT),CMR); - zwait; + zwait(); if (!(zin(CMR) & uPD98401_CHAN_ADDR)) printk(KERN_CRIT DEV_LABEL "(itf %d): can't close TX channel " "%d\n",vcc->dev->number,chan); @@ -926,9 +926,9 @@ static int open_tx_first(struct atm_vcc *vcc) zatm_vcc->tx_chan = 0; if (vcc->qos.txtp.traffic_class == ATM_NONE) return 0; spin_lock_irqsave(&zatm_dev->lock, flags); - zwait; + zwait(); zout(uPD98401_OPEN_CHAN,CMR); - zwait; + zwait(); DPRINTK("0x%x 0x%x\n",zin(CMR),zin(CER)); chan = (zin(CMR) & uPD98401_CHAN_ADDR) >> uPD98401_CHAN_ADDR_SHIFT; spin_unlock_irqrestore(&zatm_dev->lock, flags); @@ -1559,7 +1559,7 @@ static void zatm_phy_put(struct atm_dev *dev,unsigned char value, struct zatm_dev *zatm_dev;

zatm_dev = ZATM_DEV(dev); - zwait; + zwait(); zout(value,CER); zout(uPD98401_IND_ACC | uPD98401_IA_B0 | (uPD98401_IA_TGT_PHY << uPD98401_IA_TGT_SHIFT) | addr,CMR); @@ -1571,10 +1571,10 @@ static unsigned char zatm_phy_get(struct atm_dev *dev,unsigned long addr) struct zatm_dev *zatm_dev;

zatm_dev = ZATM_DEV(dev); - zwait; + zwait(); zout(uPD98401_IND_ACC | uPD98401_IA_B0 | uPD98401_IA_RW | (uPD98401_IA_TGT_PHY << uPD98401_IA_TGT_SHIFT) | addr,CMR); - zwait; + zwait(); return zin(CER) & 0xff; }

diff --git a/drivers/base/memory.c b/drivers/base/memory.c index c5cdd190b781..6a3694a4843f 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -500,15 +500,20 @@ memory_probe_store(struct device *dev, struct device_attribute *attr, if (phys_addr & ((pages_per_block << PAGE_SHIFT) - 1)) return -EINVAL;

+ ret = lock_device_hotplug_sysfs(); + if (ret) + return ret; + nid = memory_add_physaddr_to_nid(phys_addr); - ret = add_memory(nid, phys_addr, - MIN_MEMORY_BLOCK_SIZE * sections_per_block); + ret = __add_memory(nid, phys_addr, + MIN_MEMORY_BLOCK_SIZE * sections_per_block);

if (ret) goto out;

ret = count; out: + unlock_device_hotplug(); return ret; }

diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index 5fd50a284168..db4354fb2a0d 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -1699,11 +1699,41 @@ static const struct block_device_operations floppy_fops = { .check_events = amiga_check_events, };

+static struct gendisk *fd_alloc_disk(int drive) +{ + struct gendisk *disk; + + disk = alloc_disk(1); + if (!disk) + goto out; + + disk->queue = blk_init_queue(do_fd_request, &amiflop_lock); + if (IS_ERR(disk->queue)) { + disk->queue = NULL; + goto out_put_disk; + } + + unit[drive].trackbuf = kmalloc(FLOPPY_MAX_SECTORS * 512, GFP_KERNEL); + if (!unit[drive].trackbuf) + goto out_cleanup_queue; + + return disk; + +out_cleanup_queue: + blk_cleanup_queue(disk->queue); + disk->queue = NULL; +out_put_disk: + put_disk(disk); +out: + unit[drive].type->code = FD_NODRIVE; + return NULL; +} + static int __init fd_probe_drives(void) { int drive,drives,nomem;

- printk(KERN_INFO "FD: probing units\nfound "); + pr_info("FD: probing units\nfound"); drives=0; nomem=0; for(drive=0;drive<FD_MAX_UNITS;drive++) { @@ -1711,27 +1741,17 @@ static int __init fd_probe_drives(void) fd_probe(drive); if (unit[drive].type->code == FD_NODRIVE) continue; - disk = alloc_disk(1); + + disk = fd_alloc_disk(drive); if (!disk) { - unit[drive].type->code = FD_NODRIVE; + pr_cont(" no mem for fd%d", drive); + nomem = 1; continue; } unit[drive].gendisk = disk; - - disk->queue = blk_init_queue(do_fd_request, &amiflop_lock); - if (!disk->queue) { - unit[drive].type->code = FD_NODRIVE; - continue; - } - drives++; - if ((unit[drive].trackbuf = kmalloc(FLOPPY_MAX_SECTORS * 512, GFP_KERNEL)) == NULL) { - printk("no mem for "); - unit[drive].type = &drive_types[num_dr_types - 1]; /* FD_NODRIVE */ - drives--; - nomem = 1; - } - printk("fd%d ",drive); + + pr_cont(" fd%d",drive); disk->major = FLOPPY_MAJOR; disk->first_minor = drive; disk->fops = &floppy_fops; @@ -1742,11 +1762,11 @@ static int __init fd_probe_drives(void) } if ((drives > 0) || (nomem == 0)) { if (drives == 0) - printk("no drives"); - printk("\n"); + pr_cont(" no drives"); + pr_cont("\n"); return drives; } - printk("\n"); + pr_cont("\n"); return -ENOMEM; }

@@ -1837,30 +1857,6 @@ static int __init amiga_floppy_probe(struct platform_device *pdev) return ret; }

-#if 0 /* not safe to unload */ -static int __exit amiga_floppy_remove(struct platform_device *pdev) -{ - int i; - - for( i = 0; i < FD_MAX_UNITS; i++) { - if (unit[i].type->code != FD_NODRIVE) { - struct request_queue *q = unit[i].gendisk->queue; - del_gendisk(unit[i].gendisk); - put_disk(unit[i].gendisk); - kfree(unit[i].trackbuf); - if (q) - blk_cleanup_queue(q); - } - } - blk_unregister_region(MKDEV(FLOPPY_MAJOR, 0), 256); - free_irq(IRQ_AMIGA_CIAA_TB, NULL); - free_irq(IRQ_AMIGA_DSKBLK, NULL); - custom.dmacon = DMAF_DISK; /* disable DMA */ - amiga_chip_free(raw_buf); - unregister_blkdev(FLOPPY_MAJOR, "fd"); -} -#endif - static struct platform_driver amiga_floppy_driver = { .driver = { .name = "amiga-floppy", diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c index 34e04bf87a62..26f9982bab26 100644 --- a/drivers/bluetooth/hci_bcsp.c +++ b/drivers/bluetooth/hci_bcsp.c @@ -605,6 +605,7 @@ static int bcsp_recv(struct hci_uart *hu, const void *data, int count) if (*ptr == 0xc0) { BT_ERR("Short BCSP packet"); kfree_skb(bcsp->rx_skb); + bcsp->rx_skb = NULL; bcsp->rx_state = BCSP_W4_PKT_START; bcsp->rx_count = 0; } else @@ -620,6 +621,7 @@ static int bcsp_recv(struct hci_uart *hu, const void *data, int count) bcsp->rx_skb->data[2])) != bcsp->rx_skb->data[3]) { BT_ERR("Error in BCSP hdr checksum"); kfree_skb(bcsp->rx_skb); + bcsp->rx_skb = NULL; bcsp->rx_state = BCSP_W4_PKT_DELIMITER; bcsp->rx_count = 0; continue; @@ -644,6 +646,7 @@ static int bcsp_recv(struct hci_uart *hu, const void *data, int count) bscp_get_crc(bcsp));

kfree_skb(bcsp->rx_skb); + bcsp->rx_skb = NULL; bcsp->rx_state = BCSP_W4_PKT_DELIMITER; bcsp->rx_count = 0; continue; diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 800ced0a5a24..34548d3b4d13 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -422,7 +422,7 @@ static void reclaim_dma_bufs(void) } }

-static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size, +static struct port_buffer *alloc_buf(struct virtio_device *vdev, size_t buf_size, int pages) { struct port_buffer *buf; @@ -445,7 +445,7 @@ static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size, return buf; }

- if (is_rproc_serial(vq->vdev)) { + if (is_rproc_serial(vdev)) { /* * Allocate DMA memory from ancestor. When a virtio * device is created by remoteproc, the DMA memory is @@ -455,9 +455,9 @@ static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size, * DMA_MEMORY_INCLUDES_CHILDREN had been supported * in dma-coherent.c */ - if (!vq->vdev->dev.parent || !vq->vdev->dev.parent->parent) + if (!vdev->dev.parent || !vdev->dev.parent->parent) goto free_buf; - buf->dev = vq->vdev->dev.parent->parent; + buf->dev = vdev->dev.parent->parent;

/* Increase device refcnt to avoid freeing it */ get_device(buf->dev); @@ -841,7 +841,7 @@ static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,

count = min((size_t)(32 * 1024), count);

- buf = alloc_buf(port->out_vq, count, 0); + buf = alloc_buf(port->portdev->vdev, count, 0); if (!buf) return -ENOMEM;

@@ -960,7 +960,7 @@ static ssize_t port_fops_splice_write(struct pipe_inode_info *pipe, if (ret < 0) goto error_out;

- buf = alloc_buf(port->out_vq, 0, pipe->nrbufs); + buf = alloc_buf(port->portdev->vdev, 0, pipe->nrbufs); if (!buf) { ret = -ENOMEM; goto error_out; @@ -1369,24 +1369,24 @@ static void set_console_size(struct port *port, u16 rows, u16 cols) port->cons.ws.ws_col = cols; }

-static unsigned int fill_queue(struct virtqueue *vq, spinlock_t *lock) +static int fill_queue(struct virtqueue *vq, spinlock_t *lock) { struct port_buffer *buf; - unsigned int nr_added_bufs; + int nr_added_bufs; int ret;

nr_added_bufs = 0; do { - buf = alloc_buf(vq, PAGE_SIZE, 0); + buf = alloc_buf(vq->vdev, PAGE_SIZE, 0); if (!buf) - break; + return -ENOMEM;

spin_lock_irq(lock); ret = add_inbuf(vq, buf); if (ret < 0) { spin_unlock_irq(lock); free_buf(buf, true); - break; + return ret; } nr_added_bufs++; spin_unlock_irq(lock); @@ -1406,7 +1406,6 @@ static int add_port(struct ports_device *portdev, u32 id) char debugfs_name[16]; struct port *port; dev_t devt; - unsigned int nr_added_bufs; int err;

port = kmalloc(sizeof(*port), GFP_KERNEL); @@ -1465,11 +1464,13 @@ static int add_port(struct ports_device *portdev, u32 id) spin_lock_init(&port->outvq_lock); init_waitqueue_head(&port->waitqueue);

- /* Fill the in_vq with buffers so the host can send us data. */ - nr_added_bufs = fill_queue(port->in_vq, &port->inbuf_lock); - if (!nr_added_bufs) { + /* We can safely ignore ENOSPC because it means + * the queue already has buffers. Buffers are removed + * only by virtcons_remove(), not by unplug_port() + */ + err = fill_queue(port->in_vq, &port->inbuf_lock); + if (err < 0 && err != -ENOSPC) { dev_err(port->dev, "Error allocating inbufs\n"); - err = -ENOMEM; goto free_device; }

@@ -1992,19 +1993,40 @@ static void remove_vqs(struct ports_device *portdev) kfree(portdev->out_vqs); }

-static void remove_controlq_data(struct ports_device *portdev) +static void virtcons_remove(struct virtio_device *vdev) { - struct port_buffer *buf; - unsigned int len; + struct ports_device *portdev; + struct port *port, *port2;

- if (!use_multiport(portdev)) - return; + portdev = vdev->priv;

- while ((buf = virtqueue_get_buf(portdev->c_ivq, &len))) - free_buf(buf, true); + spin_lock_irq(&pdrvdata_lock); + list_del(&portdev->list); + spin_unlock_irq(&pdrvdata_lock);

- while ((buf = virtqueue_detach_unused_buf(portdev->c_ivq))) - free_buf(buf, true); + /* Disable interrupts for vqs */ + vdev->config->reset(vdev); + /* Finish up work that's lined up */ + if (use_multiport(portdev)) + cancel_work_sync(&portdev->control_work); + else + cancel_work_sync(&portdev->config_work); + + list_for_each_entry_safe(port, port2, &portdev->ports, list) + unplug_port(port); + + unregister_chrdev(portdev->chr_major, "virtio-portsdev"); + + /* + * When yanking out a device, we immediately lose the + * (device-side) queues. So there's no point in keeping the + * guest side around till we drop our final reference. This + * also means that any ports which are in an open state will + * have to just stop using the port, as the vqs are going + * away. + */ + remove_vqs(portdev); + kfree(portdev); }

/* @@ -2073,6 +2095,7 @@ static int virtcons_probe(struct virtio_device *vdev)

spin_lock_init(&portdev->ports_lock); INIT_LIST_HEAD(&portdev->ports); + INIT_LIST_HEAD(&portdev->list);

virtio_device_ready(portdev->vdev);

@@ -2080,18 +2103,22 @@ static int virtcons_probe(struct virtio_device *vdev) INIT_WORK(&portdev->control_work, &control_work_handler);

if (multiport) { - unsigned int nr_added_bufs; - spin_lock_init(&portdev->c_ivq_lock); spin_lock_init(&portdev->c_ovq_lock);

- nr_added_bufs = fill_queue(portdev->c_ivq, - &portdev->c_ivq_lock); - if (!nr_added_bufs) { + err = fill_queue(portdev->c_ivq, &portdev->c_ivq_lock); + if (err < 0) { dev_err(&vdev->dev, "Error allocating buffers for control queue\n"); - err = -ENOMEM; - goto free_vqs; + /* + * The host might want to notify mgmt sw about device + * add failure. + */ + __send_control_msg(portdev, VIRTIO_CONSOLE_BAD_ID, + VIRTIO_CONSOLE_DEVICE_READY, 0); + /* Device was functional: we need full cleanup. */ + virtcons_remove(vdev); + return err; } } else { /* @@ -2122,11 +2149,6 @@ static int virtcons_probe(struct virtio_device *vdev)

return 0;

-free_vqs: - /* The host might want to notify mgmt sw about device add failure */ - __send_control_msg(portdev, VIRTIO_CONSOLE_BAD_ID, - VIRTIO_CONSOLE_DEVICE_READY, 0); - remove_vqs(portdev); free_chrdev: unregister_chrdev(portdev->chr_major, "virtio-portsdev"); free: @@ -2135,43 +2157,6 @@ static int virtcons_probe(struct virtio_device *vdev) return err; }

-static void virtcons_remove(struct virtio_device *vdev) -{ - struct ports_device *portdev; - struct port *port, *port2; - - portdev = vdev->priv; - - spin_lock_irq(&pdrvdata_lock); - list_del(&portdev->list); - spin_unlock_irq(&pdrvdata_lock); - - /* Disable interrupts for vqs */ - vdev->config->reset(vdev); - /* Finish up work that's lined up */ - if (use_multiport(portdev)) - cancel_work_sync(&portdev->control_work); - else - cancel_work_sync(&portdev->config_work); - - list_for_each_entry_safe(port, port2, &portdev->ports, list) - unplug_port(port); - - unregister_chrdev(portdev->chr_major, "virtio-portsdev"); - - /* - * When yanking out a device, we immediately lose the - * (device-side) queues. So there's no point in keeping the - * guest side around till we drop our final reference. This - * also means that any ports which are in an open state will - * have to just stop using the port, as the vqs are going - * away. - */ - remove_controlq_data(portdev); - remove_vqs(portdev); - kfree(portdev); -} - static struct virtio_device_id id_table[] = { { VIRTIO_ID_CONSOLE, VIRTIO_DEV_ANY_ID }, { 0 }, @@ -2202,15 +2187,16 @@ static int virtcons_freeze(struct virtio_device *vdev)

vdev->config->reset(vdev);

- virtqueue_disable_cb(portdev->c_ivq); + if (use_multiport(portdev)) + virtqueue_disable_cb(portdev->c_ivq); cancel_work_sync(&portdev->control_work); cancel_work_sync(&portdev->config_work); /* * Once more: if control_work_handler() was running, it would * enable the cb as the last step. */ - virtqueue_disable_cb(portdev->c_ivq); - remove_controlq_data(portdev); + if (use_multiport(portdev)) + virtqueue_disable_cb(portdev->c_ivq);

list_for_each_entry(port, &portdev->ports, list) { virtqueue_disable_cb(port->in_vq); diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c index 9adaf48aea23..061a9f10218b 100644 --- a/drivers/clk/mmp/clk-of-mmp2.c +++ b/drivers/clk/mmp/clk-of-mmp2.c @@ -227,8 +227,8 @@ static struct mmp_param_gate_clk apmu_gate_clks[] = { /* The gate clocks has mux parent. */ {MMP2_CLK_SDH0, "sdh0_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH0, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, {MMP2_CLK_SDH1, "sdh1_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH1, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, - {MMP2_CLK_SDH1, "sdh2_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH2, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, - {MMP2_CLK_SDH1, "sdh3_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH3, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, + {MMP2_CLK_SDH2, "sdh2_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH2, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, + {MMP2_CLK_SDH3, "sdh3_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH3, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, {MMP2_CLK_DISP0, "disp0_clk", "disp0_div", CLK_SET_RATE_PARENT, APMU_DISP0, 0x1b, 0x1b, 0x0, 0, &disp0_lock}, {MMP2_CLK_DISP0_SPHY, "disp0_sphy_clk", "disp0_sphy_div", CLK_SET_RATE_PARENT, APMU_DISP0, 0x1024, 0x1024, 0x0, 0, &disp0_lock}, {MMP2_CLK_DISP1, "disp1_clk", "disp1_div", CLK_SET_RATE_PARENT, APMU_DISP1, 0x1b, 0x1b, 0x0, 0, &disp1_lock}, diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index d43cd983a7ec..063ce77df619 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -875,6 +875,9 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf) struct freq_attr *fattr = to_attr(attr); ssize_t ret;

+ if (!fattr->show) + return -EIO; + down_read(&policy->rwsem); ret = fattr->show(policy, buf); up_read(&policy->rwsem); @@ -889,6 +892,9 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr, struct freq_attr *fattr = to_attr(attr); ssize_t ret = -EINVAL;

+ if (!fattr->store) + return -EIO; + get_online_cpus();

if (cpu_online(policy->cpu)) { @@ -1646,6 +1652,9 @@ void cpufreq_resume(void) if (!cpufreq_driver) return;

+ if (unlikely(!cpufreq_suspended)) + return; + cpufreq_suspended = false;

if (!has_target() && !cpufreq_driver->resume) diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c index c46387160976..98cdfc2ee0df 100644 --- a/drivers/firmware/google/gsmi.c +++ b/drivers/firmware/google/gsmi.c @@ -480,11 +480,10 @@ static ssize_t eventlog_write(struct file *filp, struct kobject *kobj, if (count < sizeof(u32)) return -EINVAL; param.type = *(u32 *)buf; - count -= sizeof(u32); buf += sizeof(u32);

/* The remaining buffer is the data payload */ - if (count > gsmi_dev.data_buf->length) + if ((count - sizeof(u32)) > gsmi_dev.data_buf->length) return -EINVAL; param.data_len = count - sizeof(u32);

@@ -504,7 +503,7 @@ static ssize_t eventlog_write(struct file *filp, struct kobject *kobj,

spin_unlock_irqrestore(&gsmi_dev.lock, flags);

- return rc; + return (rc == 0) ? count : rc;

}

diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c index 4fe0be5aa294..52cac7c600ee 100644 --- a/drivers/gpio/gpio-max77620.c +++ b/drivers/gpio/gpio-max77620.c @@ -167,13 +167,13 @@ static int max77620_gpio_set_debounce(struct gpio_chip *gc, case 0: val = MAX77620_CNFG_GPIO_DBNC_None; break; - case 1000 ... 8000: + case 1 ... 8000: val = MAX77620_CNFG_GPIO_DBNC_8ms; break; - case 9000 ... 16000: + case 8001 ... 16000: val = MAX77620_CNFG_GPIO_DBNC_16ms; break; - case 17000 ... 32000: + case 16001 ... 32000: val = MAX77620_CNFG_GPIO_DBNC_32ms; break; default: diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c index 592f597d8951..8261afbbafb0 100644 --- a/drivers/isdn/mISDN/tei.c +++ b/drivers/isdn/mISDN/tei.c @@ -1180,8 +1180,7 @@ static int ctrl_teimanager(struct manager *mgr, void *arg) { /* currently we only have one option */ - int *val = (int *)arg; - int ret = 0; + unsigned int *val = (unsigned int *)arg;

switch (val[0]) { case IMCLEAR_L2: @@ -1197,9 +1196,9 @@ ctrl_teimanager(struct manager *mgr, void *arg) test_and_clear_bit(OPTION_L1_HOLD, &mgr->options); break; default: - ret = -EINVAL; + return -EINVAL; } - return ret; + return 0; }

/* This function does create a L2 for fixed TEI in NT Mode */ diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c index ad6223e88340..3d310dd60a0b 100644 --- a/drivers/macintosh/windfarm_smu_sat.c +++ b/drivers/macintosh/windfarm_smu_sat.c @@ -22,14 +22,6 @@

#define VERSION "1.0"

-#define DEBUG - -#ifdef DEBUG -#define DBG(args...) printk(args) -#else -#define DBG(args...) do { } while(0) -#endif - /* If the cache is older than 800ms we'll refetch it */ #define MAX_AGE msecs_to_jiffies(800)

@@ -106,13 +98,10 @@ struct smu_sdbp_header *smu_sat_get_sdb_partition(unsigned int sat_id, int id, buf[i+2] = data[3]; buf[i+3] = data[2]; } -#ifdef DEBUG - DBG(KERN_DEBUG "sat %d partition %x:", sat_id, id); - for (i = 0; i < len; ++i) - DBG(" %x", buf[i]); - DBG("\n"); -#endif

+ printk(KERN_DEBUG "sat %d partition %x:", sat_id, id); + print_hex_dump(KERN_DEBUG, " ", DUMP_PREFIX_OFFSET, + 16, 1, buf, len, false); if (size) *size = len; return (struct smu_sdbp_header *) buf; @@ -132,13 +121,13 @@ static int wf_sat_read_cache(struct wf_sat *sat) if (err < 0) return err; sat->last_read = jiffies; + #ifdef LOTSA_DEBUG { int i; - DBG(KERN_DEBUG "wf_sat_get: data is"); - for (i = 0; i < 16; ++i) - DBG(" %.2x", sat->cache[i]); - DBG("\n"); + printk(KERN_DEBUG "wf_sat_get: data is"); + print_hex_dump(KERN_DEBUG, " ", DUMP_PREFIX_OFFSET, + 16, 1, sat->cache, 16, false); } #endif return 0; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 2ffe7db75acb..36e6221fabab 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1946,9 +1946,7 @@ static void __dm_destroy(struct mapped_device *md, bool wait) set_bit(DMF_FREEING, &md->flags); spin_unlock(&_minor_lock);

- spin_lock_irq(q->queue_lock); - queue_flag_set(QUEUE_FLAG_DYING, q); - spin_unlock_irq(q->queue_lock); + blk_set_queue_dying(q);

if (dm_request_based(md) && md->kworker_task) kthread_flush_worker(&md->kworker); diff --git a/drivers/media/platform/vivid/vivid-kthread-cap.c b/drivers/media/platform/vivid/vivid-kthread-cap.c index d300e5e7eadc..2ca9c928ed2f 100644 --- a/drivers/media/platform/vivid/vivid-kthread-cap.c +++ b/drivers/media/platform/vivid/vivid-kthread-cap.c @@ -777,7 +777,11 @@ static int vivid_thread_vid_cap(void *data) if (kthread_should_stop()) break;

- mutex_lock(&dev->mutex); + if (!mutex_trylock(&dev->mutex)) { + schedule_timeout_uninterruptible(1); + continue; + } + cur_jiffies = jiffies; if (dev->cap_seq_resync) { dev->jiffies_vid_cap = cur_jiffies; @@ -930,8 +934,6 @@ void vivid_stop_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming)

/* shutdown control thread */ vivid_grab_controls(dev, false); - mutex_unlock(&dev->mutex); kthread_stop(dev->kthread_vid_cap); dev->kthread_vid_cap = NULL; - mutex_lock(&dev->mutex); } diff --git a/drivers/media/platform/vivid/vivid-kthread-out.c b/drivers/media/platform/vivid/vivid-kthread-out.c index 7c8d75852816..ed5d8fb854b4 100644 --- a/drivers/media/platform/vivid/vivid-kthread-out.c +++ b/drivers/media/platform/vivid/vivid-kthread-out.c @@ -147,7 +147,11 @@ static int vivid_thread_vid_out(void *data) if (kthread_should_stop()) break;

- mutex_lock(&dev->mutex); + if (!mutex_trylock(&dev->mutex)) { + schedule_timeout_uninterruptible(1); + continue; + } + cur_jiffies = jiffies; if (dev->out_seq_resync) { dev->jiffies_vid_out = cur_jiffies; @@ -301,8 +305,6 @@ void vivid_stop_generating_vid_out(struct vivid_dev *dev, bool *pstreaming)

/* shutdown control thread */ vivid_grab_controls(dev, false); - mutex_unlock(&dev->mutex); kthread_stop(dev->kthread_vid_out); dev->kthread_vid_out = NULL; - mutex_lock(&dev->mutex); } diff --git a/drivers/media/platform/vivid/vivid-sdr-cap.c b/drivers/media/platform/vivid/vivid-sdr-cap.c index ebd7b9c4dd83..4f49c9a47d49 100644 --- a/drivers/media/platform/vivid/vivid-sdr-cap.c +++ b/drivers/media/platform/vivid/vivid-sdr-cap.c @@ -149,7 +149,11 @@ static int vivid_thread_sdr_cap(void *data) if (kthread_should_stop()) break;

- mutex_lock(&dev->mutex); + if (!mutex_trylock(&dev->mutex)) { + schedule_timeout_uninterruptible(1); + continue; + } + cur_jiffies = jiffies; if (dev->sdr_cap_seq_resync) { dev->jiffies_sdr_cap = cur_jiffies; @@ -309,10 +313,8 @@ static void sdr_cap_stop_streaming(struct vb2_queue *vq) }

/* shutdown control thread */ - mutex_unlock(&dev->mutex); kthread_stop(dev->kthread_sdr_cap); dev->kthread_sdr_cap = NULL; - mutex_lock(&dev->mutex); }

const struct vb2_ops vivid_sdr_cap_qops = { diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c index a72982df4777..82621260fc34 100644 --- a/drivers/media/platform/vivid/vivid-vid-cap.c +++ b/drivers/media/platform/vivid/vivid-vid-cap.c @@ -236,9 +236,6 @@ static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count) if (vb2_is_streaming(&dev->vb_vid_out_q)) dev->can_loop_video = vivid_vid_can_loop(dev);

- if (dev->kthread_vid_cap) - return 0; - dev->vid_cap_seq_count = 0; dprintk(dev, 1, "%s\n", __func__); for (i = 0; i < VIDEO_MAX_FRAME; i++) diff --git a/drivers/media/platform/vivid/vivid-vid-out.c b/drivers/media/platform/vivid/vivid-vid-out.c index dd609eea4753..8fed2fbe91a9 100644 --- a/drivers/media/platform/vivid/vivid-vid-out.c +++ b/drivers/media/platform/vivid/vivid-vid-out.c @@ -158,9 +158,6 @@ static int vid_out_start_streaming(struct vb2_queue *vq, unsigned count) if (vb2_is_streaming(&dev->vb_vid_cap_q)) dev->can_loop_video = vivid_vid_can_loop(dev);

- if (dev->kthread_vid_out) - return 0; - dev->vid_out_seq_count = 0; dprintk(dev, 1, "%s\n", __func__); if (dev->start_streaming_error) { diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c index f072bf28fccd..0b386fd518cc 100644 --- a/drivers/media/rc/imon.c +++ b/drivers/media/rc/imon.c @@ -1644,8 +1644,7 @@ static void imon_incoming_packet(struct imon_context *ictx, spin_unlock_irqrestore(&ictx->kc_lock, flags);

/* send touchscreen events through input subsystem if touchpad data */ - if (ictx->display_type == IMON_DISPLAY_TYPE_VGA && len == 8 && - buf[7] == 0x86) { + if (ictx->touch && len == 8 && buf[7] == 0x86) { imon_touch_event(ictx, buf); return;

diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c index 52bc42da8a4c..1fc3c8d7dd9b 100644 --- a/drivers/media/usb/b2c2/flexcop-usb.c +++ b/drivers/media/usb/b2c2/flexcop-usb.c @@ -538,6 +538,9 @@ static int flexcop_usb_probe(struct usb_interface *intf, struct flexcop_device *fc = NULL; int ret;

+ if (intf->cur_altsetting->desc.bNumEndpoints < 1) + return -ENODEV; + if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) { err("out of memory\n"); return -ENOMEM; diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c index b20f03d86e00..2b7a1b569db0 100644 --- a/drivers/media/usb/dvb-usb/cxusb.c +++ b/drivers/media/usb/dvb-usb/cxusb.c @@ -437,7 +437,8 @@ static int cxusb_rc_query(struct dvb_usb_device *d, u32 *event, int *state) u8 ircode[4]; int i;

- cxusb_ctrl_msg(d, CMD_GET_IR_CODE, NULL, 0, ircode, 4); + if (cxusb_ctrl_msg(d, CMD_GET_IR_CODE, NULL, 0, ircode, 4) < 0) + return 0;

*event = 0; *state = REMOTE_NO_KEY_PRESSED; diff --git a/drivers/media/usb/usbvision/usbvision-video.c b/drivers/media/usb/usbvision/usbvision-video.c index bfdf72355332..230f50aa3000 100644 --- a/drivers/media/usb/usbvision/usbvision-video.c +++ b/drivers/media/usb/usbvision/usbvision-video.c @@ -332,6 +332,10 @@ static int usbvision_v4l2_open(struct file *file) if (mutex_lock_interruptible(&usbvision->v4l2_lock)) return -ERESTARTSYS;

+ if (usbvision->remove_pending) { + err_code = -ENODEV; + goto unlock; + } if (usbvision->user) { err_code = -EBUSY; } else { @@ -395,6 +399,7 @@ static int usbvision_v4l2_open(struct file *file) static int usbvision_v4l2_close(struct file *file) { struct usb_usbvision *usbvision = video_drvdata(file); + int r;

PDEBUG(DBG_IO, "close");

@@ -409,9 +414,10 @@ static int usbvision_v4l2_close(struct file *file) usbvision_scratch_free(usbvision);

usbvision->user--; + r = usbvision->remove_pending; mutex_unlock(&usbvision->v4l2_lock);

- if (usbvision->remove_pending) { + if (r) { printk(KERN_INFO "%s: Final disconnect\n", __func__); usbvision_release(usbvision); return 0; @@ -1095,6 +1101,11 @@ static int usbvision_radio_open(struct file *file)

if (mutex_lock_interruptible(&usbvision->v4l2_lock)) return -ERESTARTSYS; + + if (usbvision->remove_pending) { + err_code = -ENODEV; + goto out; + } err_code = v4l2_fh_open(file); if (err_code) goto out; @@ -1127,6 +1138,7 @@ static int usbvision_radio_open(struct file *file) static int usbvision_radio_close(struct file *file) { struct usb_usbvision *usbvision = video_drvdata(file); + int r;

PDEBUG(DBG_IO, "");

@@ -1139,9 +1151,10 @@ static int usbvision_radio_close(struct file *file) usbvision_audio_off(usbvision); usbvision->radio = 0; usbvision->user--; + r = usbvision->remove_pending; mutex_unlock(&usbvision->v4l2_lock);

- if (usbvision->remove_pending) { + if (r) { printk(KERN_INFO "%s: Final disconnect\n", __func__); v4l2_fh_release(file); usbvision_release(usbvision); @@ -1568,6 +1581,7 @@ static int usbvision_probe(struct usb_interface *intf, static void usbvision_disconnect(struct usb_interface *intf) { struct usb_usbvision *usbvision = to_usbvision(usb_get_intfdata(intf)); + int u;

PDEBUG(DBG_PROBE, "");

@@ -1584,13 +1598,14 @@ static void usbvision_disconnect(struct usb_interface *intf) v4l2_device_disconnect(&usbvision->v4l2_dev); usbvision_i2c_unregister(usbvision); usbvision->remove_pending = 1; /* Now all ISO data will be ignored */ + u = usbvision->user;

usb_put_dev(usbvision->dev); usbvision->dev = NULL; /* USB device is no more */

mutex_unlock(&usbvision->v4l2_lock);

- if (usbvision->user) { + if (u) { printk(KERN_INFO "%s: In use, disconnect pending\n", __func__); wake_up_interruptible(&usbvision->wait_frame); diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index a905d79381da..7c375b6dd318 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -2021,6 +2021,21 @@ static int uvc_probe(struct usb_interface *intf, le16_to_cpu(udev->descriptor.idVendor), le16_to_cpu(udev->descriptor.idProduct));

+ /* Initialize the media device. */ +#ifdef CONFIG_MEDIA_CONTROLLER + dev->mdev.dev = &intf->dev; + strscpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); + if (udev->serial) + strscpy(dev->mdev.serial, udev->serial, + sizeof(dev->mdev.serial)); + usb_make_path(udev, dev->mdev.bus_info, sizeof(dev->mdev.bus_info)); + dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); + dev->mdev.driver_version = LINUX_VERSION_CODE; + media_device_init(&dev->mdev); + + dev->vdev.mdev = &dev->mdev; +#endif + /* Parse the Video Class control descriptor. */ if (uvc_parse_control(dev) < 0) { uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC " @@ -2041,20 +2056,7 @@ static int uvc_probe(struct usb_interface *intf, "linux-uvc-devel mailing list.\n"); }

- /* Initialize the media device and register the V4L2 device. */ -#ifdef CONFIG_MEDIA_CONTROLLER - dev->mdev.dev = &intf->dev; - strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model)); - if (udev->serial) - strlcpy(dev->mdev.serial, udev->serial, - sizeof(dev->mdev.serial)); - strcpy(dev->mdev.bus_info, udev->devpath); - dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); - dev->mdev.driver_version = LINUX_VERSION_CODE; - media_device_init(&dev->mdev); - - dev->vdev.mdev = &dev->mdev; -#endif + /* Register the V4L2 device. */ if (v4l2_device_register(&intf->dev, &dev->vdev) < 0) goto error;

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 0556a9749dbe..1f0c2b594654 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -52,8 +52,10 @@ int arizona_clk32k_enable(struct arizona *arizona) if (ret != 0) goto err_ref; ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]); - if (ret != 0) - goto err_pm; + if (ret != 0) { + pm_runtime_put_sync(arizona->dev); + goto err_ref; + } break; case ARIZONA_32KZ_MCLK2: ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]); @@ -67,8 +69,6 @@ int arizona_clk32k_enable(struct arizona *arizona) ARIZONA_CLK_32K_ENA); }

-err_pm: - pm_runtime_put_sync(arizona->dev); err_ref: if (ret != 0) arizona->clk32k_ref--; diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index 2d6e2c392786..4a2fc59d5901 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -155,12 +155,6 @@ static struct max8997_platform_data *max8997_i2c_parse_dt_pdata(

pd->ono = irq_of_parse_and_map(dev->of_node, 1);

- /* - * ToDo: the 'wakeup' member in the platform data is more of a linux - * specfic information. Hence, there is no binding for that yet and - * not parsed here. - */ - return pd; }

@@ -248,7 +242,7 @@ static int max8997_i2c_probe(struct i2c_client *i2c, */

/* MAX8997 has a power button input. */ - device_init_wakeup(max8997->dev, pdata->wakeup); + device_init_wakeup(max8997->dev, true);

return ret;

diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index 6c16f170529f..75d52034f89d 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -278,7 +278,8 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode, if (ret) goto out;

- adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2; + adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2 | + MC13XXX_ADC0_CHRGRAWDIV; adc1 = MC13XXX_ADC1_ADEN | MC13XXX_ADC1_ADTRIGIGN | MC13XXX_ADC1_ASC;

if (channel > 7) diff --git a/drivers/misc/mic/scif/scif_fence.c b/drivers/misc/mic/scif/scif_fence.c index cac3bcc308a7..7bb929f05d85 100644 --- a/drivers/misc/mic/scif/scif_fence.c +++ b/drivers/misc/mic/scif/scif_fence.c @@ -272,7 +272,7 @@ static int _scif_prog_signal(scif_epd_t epd, dma_addr_t dst, u64 val) dma_fail: if (!x100) dma_pool_free(ep->remote_dev->signal_pool, status, - status->src_dma_addr); + src - offsetof(struct scif_status, val)); alloc_fail: return err; } diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 6f9535e5e584..7fc6ce381142 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -870,6 +870,7 @@ static void msdc_start_command(struct msdc_host *host, WARN_ON(host->cmd); host->cmd = cmd;

+ mod_delayed_work(system_wq, &host->req_timeout, DAT_TIMEOUT); if (!msdc_cmd_is_ready(host, mrq, cmd)) return;

@@ -881,7 +882,6 @@ static void msdc_start_command(struct msdc_host *host,

cmd->error = 0; rawcmd = msdc_cmd_prepare_raw_cmd(host, mrq, cmd); - mod_delayed_work(system_wq, &host->req_timeout, DAT_TIMEOUT);

sdr_set_bits(host->base + MSDC_INTEN, cmd_ints_mask); writel(cmd->arg, host->base + SDC_ARG); diff --git a/drivers/net/ethernet/amazon/Kconfig b/drivers/net/ethernet/amazon/Kconfig index 99b30353541a..9e87d7b8360f 100644 --- a/drivers/net/ethernet/amazon/Kconfig +++ b/drivers/net/ethernet/amazon/Kconfig @@ -17,7 +17,7 @@ if NET_VENDOR_AMAZON

config ENA_ETHERNET tristate "Elastic Network Adapter (ENA) support" - depends on (PCI_MSI && X86) + depends on PCI_MSI && !CPU_BIG_ENDIAN ---help--- This driver supports Elastic Network Adapter (ENA)"

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 4a4782b3cc1b..a23404480597 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1078,7 +1078,7 @@ static int bcmgenet_power_down(struct bcmgenet_priv *priv, break; }

- return 0; + return ret; }

static void bcmgenet_power_up(struct bcmgenet_priv *priv, diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c index 9eb9b68f8935..ae1f963b6092 100644 --- a/drivers/net/ethernet/intel/igb/igb_ptp.c +++ b/drivers/net/ethernet/intel/igb/igb_ptp.c @@ -65,9 +65,15 @@ * * The 40 bit 82580 SYSTIM overflows every * 2^40 * 10^-9 / 60 = 18.3 minutes. + * + * SYSTIM is converted to real time using a timecounter. As + * timecounter_cyc2time() allows old timestamps, the timecounter + * needs to be updated at least once per half of the SYSTIM interval. + * Scheduling of delayed work is not very accurate, so we aim for 8 + * minutes to be sure the actual interval is shorter than 9.16 minutes. */

-#define IGB_SYSTIM_OVERFLOW_PERIOD (HZ * 60 * 9) +#define IGB_SYSTIM_OVERFLOW_PERIOD (HZ * 60 * 8) #define IGB_PTP_TX_TIMEOUT (HZ * 15) #define INCPERIOD_82576 BIT(E1000_TIMINCA_16NS_SHIFT) #define INCVALUE_82576_MASK GENMASK(E1000_TIMINCA_16NS_SHIFT - 1, 0) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index 74d2db505866..6068e7c4fc7e 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -1679,6 +1679,7 @@ static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, err = mlx4_en_get_flow(dev, cmd, cmd->fs.location); break; case ETHTOOL_GRXCLSRLALL: + cmd->data = MAX_NUM_OF_FS_RULES; while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) { err = mlx4_en_get_flow(dev, cmd, i); if (!err) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index d1a3a35ba87b..a10f042df01f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -1757,7 +1757,7 @@ int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,

unlock: mutex_unlock(&esw->state_lock); - return 0; + return err; }

int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw, diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c index 4b76c69fe86d..834208e55f7b 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c @@ -883,7 +883,7 @@ static u8 qlcnic_dcb_get_capability(struct net_device *netdev, int capid, struct qlcnic_adapter *adapter = netdev_priv(netdev);

if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state)) - return 0; + return 1;

switch (capid) { case DCB_CAP_ATTR_PG: diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 77a5364f7a10..04cbff7f1b23 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -1320,7 +1320,8 @@ void efx_ptp_remove(struct efx_nic *efx) (void)efx_ptp_disable(efx);

cancel_work_sync(&efx->ptp_data->work); - cancel_work_sync(&efx->ptp_data->pps_work); + if (efx->ptp_data->pps_workwq) + cancel_work_sync(&efx->ptp_data->pps_work);

skb_queue_purge(&efx->ptp_data->rxq); skb_queue_purge(&efx->ptp_data->txq); diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index d7cb205fe7e2..892b06852e15 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -590,6 +590,7 @@ static void cpsw_set_promiscious(struct net_device *ndev, bool enable)

/* Clear all mcast from ALE */ cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS, -1); + __dev_mc_unsync(ndev, NULL);

/* Flood All Unicast Packets to Host port */ cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1); diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c index da10104be16c..a48ed0873cc7 100644 --- a/drivers/net/macsec.c +++ b/drivers/net/macsec.c @@ -2798,9 +2798,6 @@ static int macsec_dev_open(struct net_device *dev) struct net_device *real_dev = macsec->real_dev; int err;

- if (!(real_dev->flags & IFF_UP)) - return -ENETDOWN; - err = dev_uc_add(real_dev, dev->dev_addr); if (err < 0) return err; @@ -3275,6 +3272,9 @@ static int macsec_newlink(struct net *net, struct net_device *dev, if (err < 0) goto del_dev;

+ netif_stacked_transfer_operstate(real_dev, dev); + linkwatch_fire_event(dev); + macsec_generation++;

return 0; @@ -3446,6 +3446,20 @@ static int macsec_notify(struct notifier_block *this, unsigned long event, return NOTIFY_DONE;

switch (event) { + case NETDEV_DOWN: + case NETDEV_UP: + case NETDEV_CHANGE: { + struct macsec_dev *m, *n; + struct macsec_rxh_data *rxd; + + rxd = macsec_data_rtnl(real_dev); + list_for_each_entry_safe(m, n, &rxd->secys, secys) { + struct net_device *dev = m->secy.netdev; + + netif_stacked_transfer_operstate(real_dev, dev); + } + break; + } case NETDEV_UNREGISTER: { struct macsec_dev *m, *n; struct macsec_rxh_data *rxd; diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c index a9acf7156855..03009f1becdd 100644 --- a/drivers/net/ntb_netdev.c +++ b/drivers/net/ntb_netdev.c @@ -236,7 +236,7 @@ static void ntb_netdev_tx_timer(unsigned long data) struct ntb_netdev *dev = netdev_priv(ndev);

if (ntb_transport_tx_free_entry(dev->qp) < tx_stop) { - mod_timer(&dev->tx_timer, jiffies + msecs_to_jiffies(tx_time)); + mod_timer(&dev->tx_timer, jiffies + usecs_to_jiffies(tx_time)); } else { /* Make sure anybody stopping the queue after this sees the new * value of ntb_transport_tx_free_entry() diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index b7bac14d1487..d84a362a084a 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -1039,10 +1039,9 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address, struct ath10k_pci *ar_pci = ath10k_pci_priv(ar); int ret = 0; u32 *buf; - unsigned int completed_nbytes, orig_nbytes, remaining_bytes; + unsigned int completed_nbytes, alloc_nbytes, remaining_bytes; struct ath10k_ce_pipe *ce_diag; void *data_buf = NULL; - u32 ce_data; /* Host buffer address in CE space */ dma_addr_t ce_data_base = 0; int i;

@@ -1056,9 +1055,10 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address, * 1) 4-byte alignment * 2) Buffer in DMA-able space */ - orig_nbytes = nbytes; + alloc_nbytes = min_t(unsigned int, nbytes, DIAG_TRANSFER_LIMIT); + data_buf = (unsigned char *)dma_alloc_coherent(ar->dev, - orig_nbytes, + alloc_nbytes, &ce_data_base, GFP_ATOMIC); if (!data_buf) { @@ -1066,9 +1066,6 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address, goto done; }

- /* Copy caller's data to allocated DMA buf */ - memcpy(data_buf, data, orig_nbytes); - /* * The address supplied by the caller is in the * Target CPU virtual address space. @@ -1081,12 +1078,14 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address, */ address = ath10k_pci_targ_cpu_to_ce_addr(ar, address);

- remaining_bytes = orig_nbytes; - ce_data = ce_data_base; + remaining_bytes = nbytes; while (remaining_bytes) { /* FIXME: check cast */ nbytes = min_t(int, remaining_bytes, DIAG_TRANSFER_LIMIT);

+ /* Copy caller's data to allocated DMA buf */ + memcpy(data_buf, data, nbytes); + /* Set up to receive directly into Target(!) address */ ret = __ath10k_ce_rx_post_buf(ce_diag, &address, address); if (ret != 0) @@ -1096,7 +1095,7 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address, * Request CE to send caller-supplied data that * was copied to bounce buffer to Target(!) address. */ - ret = ath10k_ce_send_nolock(ce_diag, NULL, (u32)ce_data, + ret = ath10k_ce_send_nolock(ce_diag, NULL, ce_data_base, nbytes, 0, 0); if (ret != 0) goto done; @@ -1137,12 +1136,12 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,

remaining_bytes -= nbytes; address += nbytes; - ce_data += nbytes; + data += nbytes; }

done: if (data_buf) { - dma_free_coherent(ar->dev, orig_nbytes, data_buf, + dma_free_coherent(ar->dev, alloc_nbytes, data_buf, ce_data_base); }

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index 08607d7fdb56..7eff6f8023d8 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -4115,7 +4115,7 @@ static void ar9003_hw_thermometer_apply(struct ath_hw *ah)

static void ar9003_hw_thermo_cal_apply(struct ath_hw *ah) { - u32 data, ko, kg; + u32 data = 0, ko, kg;

if (!AR_SREV_9462_20_OR_LATER(ah)) return; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c index 7c2a9a9bc372..b820e80d4b4c 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c @@ -502,6 +502,7 @@ brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) }

spin_lock_bh(&wl->lock); + wl->wlc->vif = vif; wl->mute_tx = false; brcms_c_mute(wl->wlc, false); if (vif->type == NL80211_IFTYPE_STATION) @@ -519,6 +520,11 @@ brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) static void brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { + struct brcms_info *wl = hw->priv; + + spin_lock_bh(&wl->lock); + wl->wlc->vif = NULL; + spin_unlock_bh(&wl->lock); }

static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed) @@ -840,8 +846,8 @@ brcms_ops_ampdu_action(struct ieee80211_hw *hw, status = brcms_c_aggregatable(wl->wlc, tid); spin_unlock_bh(&wl->lock); if (!status) { - brcms_err(wl->wlc->hw->d11core, - "START: tid %d is not agg'able\n", tid); + brcms_dbg_ht(wl->wlc->hw->d11core, + "START: tid %d is not agg'able\n", tid); return -EINVAL; } ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); @@ -937,6 +943,25 @@ static void brcms_ops_set_tsf(struct ieee80211_hw *hw, spin_unlock_bh(&wl->lock); }

+static int brcms_ops_beacon_set_tim(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, bool set) +{ + struct brcms_info *wl = hw->priv; + struct sk_buff *beacon = NULL; + u16 tim_offset = 0; + + spin_lock_bh(&wl->lock); + if (wl->wlc->vif) + beacon = ieee80211_beacon_get_tim(hw, wl->wlc->vif, + &tim_offset, NULL); + if (beacon) + brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset, + wl->wlc->vif->bss_conf.dtim_period); + spin_unlock_bh(&wl->lock); + + return 0; +} + static const struct ieee80211_ops brcms_ops = { .tx = brcms_ops_tx, .start = brcms_ops_start, @@ -955,6 +980,7 @@ static const struct ieee80211_ops brcms_ops = { .flush = brcms_ops_flush, .get_tsf = brcms_ops_get_tsf, .set_tsf = brcms_ops_set_tsf, + .set_tim = brcms_ops_beacon_set_tim, };

void brcms_dpc(unsigned long data) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.h b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.h index c4d135cff04a..9f76b880814e 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.h @@ -563,6 +563,7 @@ struct brcms_c_info {

struct wiphy *wiphy; struct scb pri_scb; + struct ieee80211_vif *vif;

struct sk_buff *beacon; u16 beacon_tim_offset; diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c index 69b826d229c5..04939e576ee0 100644 --- a/drivers/net/wireless/cisco/airo.c +++ b/drivers/net/wireless/cisco/airo.c @@ -5472,7 +5472,7 @@ static int proc_BSSList_open( struct inode *inode, struct file *file ) { we have to add a spin lock... */ rc = readBSSListRid(ai, doLoseSync, &BSSList_rid); while(rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) { - ptr += sprintf(ptr, "%pM %*s rssi = %d", + ptr += sprintf(ptr, "%pM %.*s rssi = %d", BSSList_rid.bssid, (int)BSSList_rid.ssidLen, BSSList_rid.ssid, diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c index 46d0099fd6e8..94901b0041ce 100644 --- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c +++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c @@ -364,11 +364,20 @@ mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, struct mwifiex_power_cfg power_cfg; int dbm = MBM_TO_DBM(mbm);

- if (type == NL80211_TX_POWER_FIXED) { + switch (type) { + case NL80211_TX_POWER_FIXED: power_cfg.is_power_auto = 0; + power_cfg.is_power_fixed = 1; power_cfg.power_level = dbm; - } else { + break; + case NL80211_TX_POWER_LIMITED: + power_cfg.is_power_auto = 0; + power_cfg.is_power_fixed = 0; + power_cfg.power_level = dbm; + break; + case NL80211_TX_POWER_AUTOMATIC: power_cfg.is_power_auto = 1; + break; }

priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); diff --git a/drivers/net/wireless/marvell/mwifiex/ioctl.h b/drivers/net/wireless/marvell/mwifiex/ioctl.h index 536ab834b126..729a69f88a48 100644 --- a/drivers/net/wireless/marvell/mwifiex/ioctl.h +++ b/drivers/net/wireless/marvell/mwifiex/ioctl.h @@ -265,6 +265,7 @@ struct mwifiex_ds_encrypt_key {

struct mwifiex_power_cfg { u32 is_power_auto; + u32 is_power_fixed; u32 power_level; };

diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c index 7f9645703d96..478885afb6c6 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c @@ -728,6 +728,9 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv, txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf; txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET); if (!power_cfg->is_power_auto) { + u16 dbm_min = power_cfg->is_power_fixed ? + dbm : priv->min_tx_power_level; + txp_cfg->mode = cpu_to_le32(1); pg_tlv = (struct mwifiex_types_power_group *) (buf + sizeof(struct host_cmd_ds_txpwr_cfg)); @@ -742,7 +745,7 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv, pg->last_rate_code = 0x03; pg->modulation_class = MOD_CLASS_HR_DSSS; pg->power_step = 0; - pg->power_min = (s8) dbm; + pg->power_min = (s8) dbm_min; pg->power_max = (s8) dbm; pg++; /* Power group for modulation class OFDM */ @@ -750,7 +753,7 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv, pg->last_rate_code = 0x07; pg->modulation_class = MOD_CLASS_OFDM; pg->power_step = 0; - pg->power_min = (s8) dbm; + pg->power_min = (s8) dbm_min; pg->power_max = (s8) dbm; pg++; /* Power group for modulation class HTBW20 */ @@ -758,7 +761,7 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv, pg->last_rate_code = 0x20; pg->modulation_class = MOD_CLASS_HT; pg->power_step = 0; - pg->power_min = (s8) dbm; + pg->power_min = (s8) dbm_min; pg->power_max = (s8) dbm; pg->ht_bandwidth = HT_BW_20; pg++; @@ -767,7 +770,7 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv, pg->last_rate_code = 0x20; pg->modulation_class = MOD_CLASS_HT; pg->power_step = 0; - pg->power_min = (s8) dbm; + pg->power_min = (s8) dbm_min; pg->power_max = (s8) dbm; pg->ht_bandwidth = HT_BW_40; } diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 4e725d165aa6..e78545d4add3 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -5660,6 +5660,7 @@ static int rtl8xxxu_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, break; case WLAN_CIPHER_SUITE_TKIP: key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; + break; default: return -EOPNOTSUPP; } diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c index 8de29cc3ced0..a24644f34e65 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/fw.c @@ -234,7 +234,7 @@ static int _rtl92d_fw_init(struct ieee80211_hw *hw) rtl_read_byte(rtlpriv, FW_MAC1_READY)); } RT_TRACE(rtlpriv, COMP_FW, DBG_DMESG, - "Polling FW ready fail!! REG_MCUFWDL:0x%08ul\n", + "Polling FW ready fail!! REG_MCUFWDL:0x%08x\n", rtl_read_dword(rtlpriv, REG_MCUFWDL)); return -1; } diff --git a/drivers/net/wireless/ti/wlcore/vendor_cmd.c b/drivers/net/wireless/ti/wlcore/vendor_cmd.c index fd4e9ba176c9..332a3a5c1c90 100644 --- a/drivers/net/wireless/ti/wlcore/vendor_cmd.c +++ b/drivers/net/wireless/ti/wlcore/vendor_cmd.c @@ -66,7 +66,7 @@ wlcore_vendor_cmd_smart_config_start(struct wiphy *wiphy, out: mutex_unlock(&wl->mutex);

- return 0; + return ret; }

static int diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c index 073e4a478c89..3cd995de1bbb 100644 --- a/drivers/nfc/port100.c +++ b/drivers/nfc/port100.c @@ -791,7 +791,7 @@ static int port100_send_frame_async(struct port100 *dev, struct sk_buff *out,

rc = port100_submit_urb_for_ack(dev, GFP_KERNEL); if (rc) - usb_unlink_urb(dev->out_urb); + usb_kill_urb(dev->out_urb);

exit: mutex_unlock(&dev->out_urb_lock); diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c index 7310a261c858..e175cbeba266 100644 --- a/drivers/ntb/hw/intel/ntb_hw_intel.c +++ b/drivers/ntb/hw/intel/ntb_hw_intel.c @@ -330,7 +330,7 @@ static inline int ndev_db_clear_mask(struct intel_ntb_dev *ndev, u64 db_bits, return 0; }

-static inline int ndev_vec_mask(struct intel_ntb_dev *ndev, int db_vector) +static inline u64 ndev_vec_mask(struct intel_ntb_dev *ndev, int db_vector) { u64 shift, mask;

diff --git a/drivers/pci/host/pci-keystone.c b/drivers/pci/host/pci-keystone.c index eac0a1238e9d..c690299d5c4a 100644 --- a/drivers/pci/host/pci-keystone.c +++ b/drivers/pci/host/pci-keystone.c @@ -43,6 +43,7 @@ #define PCIE_RC_K2HK 0xb008 #define PCIE_RC_K2E 0xb009 #define PCIE_RC_K2L 0xb00a +#define PCIE_RC_K2G 0xb00b

#define to_keystone_pcie(x) container_of(x, struct keystone_pcie, pp)

@@ -57,6 +58,8 @@ static void quirk_limit_mrrs(struct pci_dev *dev) .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, }, { PCI_DEVICE(PCI_VENDOR_ID_TI, PCIE_RC_K2L), .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, }, + { PCI_DEVICE(PCI_VENDOR_ID_TI, PCIE_RC_K2G), + .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, }, { 0, }, };

diff --git a/drivers/pinctrl/pinctrl-lpc18xx.c b/drivers/pinctrl/pinctrl-lpc18xx.c index e053f1fa5512..ab2a451f3156 100644 --- a/drivers/pinctrl/pinctrl-lpc18xx.c +++ b/drivers/pinctrl/pinctrl-lpc18xx.c @@ -630,14 +630,8 @@ static const struct pinctrl_pin_desc lpc18xx_pins[] = { LPC18XX_PIN(i2c0_sda, PIN_I2C0_SDA), };

-/** - * enum lpc18xx_pin_config_param - possible pin configuration parameters - * @PIN_CONFIG_GPIO_PIN_INT: route gpio to the gpio pin interrupt - * controller. - */ -enum lpc18xx_pin_config_param { - PIN_CONFIG_GPIO_PIN_INT = PIN_CONFIG_END + 1, -}; +/* PIN_CONFIG_GPIO_PIN_INT: route gpio to the gpio pin interrupt controller */ +#define PIN_CONFIG_GPIO_PIN_INT (PIN_CONFIG_END + 1)

static const struct pinconf_generic_params lpc18xx_params[] = { {"nxp,gpio-pin-interrupt", PIN_CONFIG_GPIO_PIN_INT, 0}, diff --git a/drivers/pinctrl/pinctrl-zynq.c b/drivers/pinctrl/pinctrl-zynq.c index e0ecffcbe11f..f8b54cfc90c7 100644 --- a/drivers/pinctrl/pinctrl-zynq.c +++ b/drivers/pinctrl/pinctrl-zynq.c @@ -967,15 +967,12 @@ enum zynq_io_standards { zynq_iostd_max };

-/** - * enum zynq_pin_config_param - possible pin configuration parameters - * @PIN_CONFIG_IOSTANDARD: if the pin can select an IO standard, the argument to +/* + * PIN_CONFIG_IOSTANDARD: if the pin can select an IO standard, the argument to * this parameter (on a custom format) tells the driver which alternative * IO standard to use. */ -enum zynq_pin_config_param { - PIN_CONFIG_IOSTANDARD = PIN_CONFIG_END + 1, -}; +#define PIN_CONFIG_IOSTANDARD (PIN_CONFIG_END + 1)

static const struct pinconf_generic_params zynq_dt_params[] = { {"io-standard", PIN_CONFIG_IOSTANDARD, zynq_iostd_lvcmos18}, diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c index 8093afd17aa4..69641c9e7d17 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c @@ -790,10 +790,23 @@ static int pmic_gpio_probe(struct platform_device *pdev) return ret; }

- ret = gpiochip_add_pin_range(&state->chip, dev_name(dev), 0, 0, npins); - if (ret) { - dev_err(dev, "failed to add pin range\n"); - goto err_range; + /* + * For DeviceTree-supported systems, the gpio core checks the + * pinctrl's device node for the "gpio-ranges" property. + * If it is present, it takes care of adding the pin ranges + * for the driver. In this case the driver can skip ahead. + * + * In order to remain compatible with older, existing DeviceTree + * files which don't set the "gpio-ranges" property or systems that + * utilize ACPI the driver has to call gpiochip_add_pin_range(). + */ + if (!of_property_read_bool(dev->of_node, "gpio-ranges")) { + ret = gpiochip_add_pin_range(&state->chip, dev_name(dev), 0, 0, + npins); + if (ret) { + dev_err(dev, "failed to add pin range\n"); + goto err_range; + } }

return 0; diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c index 69ffbd7b76f7..0fd7e40b86a0 100644 --- a/drivers/platform/x86/asus-nb-wmi.c +++ b/drivers/platform/x86/asus-nb-wmi.c @@ -78,10 +78,12 @@ static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str,

static struct quirk_entry quirk_asus_unknown = { .wapf = 0, + .wmi_backlight_set_devstate = true, };

static struct quirk_entry quirk_asus_q500a = { .i8042_filter = asus_q500a_i8042_filter, + .wmi_backlight_set_devstate = true, };

/* @@ -92,15 +94,18 @@ static struct quirk_entry quirk_asus_q500a = { static struct quirk_entry quirk_asus_x55u = { .wapf = 4, .wmi_backlight_power = true, + .wmi_backlight_set_devstate = true, .no_display_toggle = true, };

static struct quirk_entry quirk_asus_wapf4 = { .wapf = 4, + .wmi_backlight_set_devstate = true, };

static struct quirk_entry quirk_asus_x200ca = { .wapf = 2, + .wmi_backlight_set_devstate = true, };

static struct quirk_entry quirk_no_rfkill = { @@ -114,13 +119,16 @@ static struct quirk_entry quirk_no_rfkill_wapf4 = {

static struct quirk_entry quirk_asus_ux303ub = { .wmi_backlight_native = true, + .wmi_backlight_set_devstate = true, };

static struct quirk_entry quirk_asus_x550lb = { + .wmi_backlight_set_devstate = true, .xusb2pr = 0x01D9, };

-static struct quirk_entry quirk_asus_ux330uak = { +static struct quirk_entry quirk_asus_forceals = { + .wmi_backlight_set_devstate = true, .wmi_force_als_set = true, };

@@ -431,7 +439,7 @@ static const struct dmi_system_id asus_quirks[] = { DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), DMI_MATCH(DMI_PRODUCT_NAME, "UX330UAK"), }, - .driver_data = &quirk_asus_ux330uak, + .driver_data = &quirk_asus_forceals, }, { .callback = dmi_matched, @@ -442,6 +450,15 @@ static const struct dmi_system_id asus_quirks[] = { }, .driver_data = &quirk_asus_x550lb, }, + { + .callback = dmi_matched, + .ident = "ASUSTeK COMPUTER INC. UX430UQ", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "UX430UQ"), + }, + .driver_data = &quirk_asus_forceals, + }, {}, };

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 10bd13b30178..aede41a92cac 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -2154,7 +2154,7 @@ static int asus_wmi_add(struct platform_device *pdev) err = asus_wmi_backlight_init(asus); if (err && err != -ENODEV) goto fail_backlight; - } else + } else if (asus->driver->quirks->wmi_backlight_set_devstate) err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);

status = wmi_install_notify_handler(asus->driver->event_guid, diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h index 5db052d1de1e..53bab79780e2 100644 --- a/drivers/platform/x86/asus-wmi.h +++ b/drivers/platform/x86/asus-wmi.h @@ -45,6 +45,7 @@ struct quirk_entry { bool store_backlight_power; bool wmi_backlight_power; bool wmi_backlight_native; + bool wmi_backlight_set_devstate; bool wmi_force_als_set; int wapf; /* diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c index 5dab4665ca3b..3e0eea3aa876 100644 --- a/drivers/rtc/rtc-s35390a.c +++ b/drivers/rtc/rtc-s35390a.c @@ -106,7 +106,7 @@ static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len) */ static int s35390a_reset(struct s35390a *s35390a, char *status1) { - char buf; + u8 buf; int ret; unsigned initcount = 0;

diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c index 5ee7f44cf869..830b2d2dcf20 100644 --- a/drivers/scsi/dc395x.c +++ b/drivers/scsi/dc395x.c @@ -1972,6 +1972,11 @@ static void sg_update_list(struct ScsiReqBlk *srb, u32 left) xferred -= psge->length; } else { /* Partial SG entry done */ + pci_dma_sync_single_for_cpu(srb->dcb-> + acb->dev, + srb->sg_bus_addr, + SEGMENTX_LEN, + PCI_DMA_TODEVICE); psge->length -= xferred; psge->address += xferred; srb->sg_index = idx; @@ -3450,14 +3455,12 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb, } }

- if (dir != PCI_DMA_NONE && scsi_sg_count(cmd)) - pci_dma_sync_sg_for_cpu(acb->dev, scsi_sglist(cmd), - scsi_sg_count(cmd), dir); - ckc_only = 0; /* Check Error Conditions */ ckc_e:

+ pci_unmap_srb(acb, srb); + if (cmd->cmnd[0] == INQUIRY) { unsigned char *base = NULL; struct ScsiInqData *ptr; @@ -3511,7 +3514,6 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb, cmd, cmd->result); srb_free_insert(acb, srb); } - pci_unmap_srb(acb, srb);

cmd->scsi_done(cmd); waiting_process_next(acb); diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 02cb76fd4420..6bbf2945a3e0 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -3500,6 +3500,7 @@ ips_send_cmd(ips_ha_t * ha, ips_scb_t * scb)

case START_STOP: scb->scsi_cmd->result = DID_OK << 16; + break;

case TEST_UNIT_READY: case INQUIRY: diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 609dafd661d1..da4583a2fa23 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -2717,9 +2717,9 @@ enum sci_status sci_controller_continue_io(struct isci_request *ireq) * the task management request. * @task_request: the handle to the task request object to start. */ -enum sci_task_status sci_controller_start_task(struct isci_host *ihost, - struct isci_remote_device *idev, - struct isci_request *ireq) +enum sci_status sci_controller_start_task(struct isci_host *ihost, + struct isci_remote_device *idev, + struct isci_request *ireq) { enum sci_status status;

@@ -2728,7 +2728,7 @@ enum sci_task_status sci_controller_start_task(struct isci_host *ihost, "%s: SCIC Controller starting task from invalid " "state\n", __func__); - return SCI_TASK_FAILURE_INVALID_STATE; + return SCI_FAILURE_INVALID_STATE; }

status = sci_remote_device_start_task(ihost, idev, ireq); diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 22a9bb1abae1..15dc6e0d8deb 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -490,7 +490,7 @@ enum sci_status sci_controller_start_io( struct isci_remote_device *idev, struct isci_request *ireq);

-enum sci_task_status sci_controller_start_task( +enum sci_status sci_controller_start_task( struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index b709d2b20880..7d71ca421751 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -1626,9 +1626,9 @@ static enum sci_status atapi_d2h_reg_frame_handler(struct isci_request *ireq,

if (status == SCI_SUCCESS) { if (ireq->stp.rsp.status & ATA_ERR) - status = SCI_IO_FAILURE_RESPONSE_VALID; + status = SCI_FAILURE_IO_RESPONSE_VALID; } else { - status = SCI_IO_FAILURE_RESPONSE_VALID; + status = SCI_FAILURE_IO_RESPONSE_VALID; }

if (status != SCI_SUCCESS) { diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 6dcaed0c1fc8..fb6eba331ac6 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -258,7 +258,7 @@ static int isci_task_execute_tmf(struct isci_host *ihost, struct isci_tmf *tmf, unsigned long timeout_ms) { DECLARE_COMPLETION_ONSTACK(completion); - enum sci_task_status status = SCI_TASK_FAILURE; + enum sci_status status = SCI_FAILURE; struct isci_request *ireq; int ret = TMF_RESP_FUNC_FAILED; unsigned long flags; @@ -301,7 +301,7 @@ static int isci_task_execute_tmf(struct isci_host *ihost, /* start the TMF io. */ status = sci_controller_start_task(ihost, idev, ireq);

- if (status != SCI_TASK_SUCCESS) { + if (status != SCI_SUCCESS) { dev_dbg(&ihost->pdev->dev, "%s: start_io failed - status = 0x%x, request = %p\n", __func__, diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index ace4f1f41b8e..d60564397be5 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -798,7 +798,8 @@ static int iscsi_sw_tcp_host_get_param(struct Scsi_Host *shost, return rc;

return iscsi_conn_get_addr_param((struct sockaddr_storage *) - &addr, param, buf); + &addr, + (enum iscsi_param)param, buf); default: return iscsi_host_get_param(shost, param, buf); } diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index b5be4df05733..3702497b5b16 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -1141,6 +1141,7 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, phba->fcf.fcf_flag &= ~FCF_DISCOVERY; phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); spin_unlock_irq(&phba->hbalock); + phba->fcf.fcf_redisc_attempted = 0; /* reset */ goto out; } if (!rc) { @@ -1155,6 +1156,7 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, phba->fcf.fcf_flag &= ~FCF_DISCOVERY; phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO); spin_unlock_irq(&phba->hbalock); + phba->fcf.fcf_redisc_attempted = 0; /* reset */ goto out; } } diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 9cca5ddbc50c..6eaba1676846 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1969,6 +1969,26 @@ int lpfc_sli4_fcf_rr_next_proc(struct lpfc_vport *vport, uint16_t fcf_index) "failover and change port state:x%x/x%x\n", phba->pport->port_state, LPFC_VPORT_UNKNOWN); phba->pport->port_state = LPFC_VPORT_UNKNOWN; + + if (!phba->fcf.fcf_redisc_attempted) { + lpfc_unregister_fcf(phba); + + rc = lpfc_sli4_redisc_fcf_table(phba); + if (!rc) { + lpfc_printf_log(phba, KERN_INFO, LOG_FIP, + "3195 Rediscover FCF table\n"); + phba->fcf.fcf_redisc_attempted = 1; + lpfc_sli4_clear_fcf_rr_bmask(phba); + } else { + lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, + "3196 Rediscover FCF table " + "failed. Status:x%x\n", rc); + } + } else { + lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, + "3197 Already rediscover FCF table " + "attempted. No more retry\n"); + } goto stop_flogi_current_fcf; } else { lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_ELS, diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index e9ea8f4ea2c9..2f80b2c0409e 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4444,7 +4444,7 @@ lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, break; } /* If fast FCF failover rescan event is pending, do nothing */ - if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { + if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) { spin_unlock_irq(&phba->hbalock); break; } diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index c05fc61a383b..e1e0feb25003 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -16553,15 +16553,8 @@ lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba) goto initial_priority; lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, "2844 No roundrobin failover FCF available\n"); - if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) - return LPFC_FCOE_FCF_NEXT_NONE; - else { - lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, - "3063 Only FCF available idx %d, flag %x\n", - next_fcf_index, - phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag); - return next_fcf_index; - } + + return LPFC_FCOE_FCF_NEXT_NONE; }

if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX && diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 0b88b5703e0f..9c69c4215de3 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -237,6 +237,7 @@ struct lpfc_fcf { #define FCF_REDISC_EVT 0x100 /* FCF rediscovery event to worker thread */ #define FCF_REDISC_FOV 0x200 /* Post FCF rediscovery fast failover */ #define FCF_REDISC_PROG (FCF_REDISC_PEND | FCF_REDISC_EVT) + uint16_t fcf_redisc_attempted; uint32_t addr_mode; uint32_t eligible_fcf_cnt; struct lpfc_fcf_rec current_rec; diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index d90693b2767f..c5cc002dfdd5 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -3694,12 +3694,12 @@ megasas_transition_to_ready(struct megasas_instance *instance, int ocr) /* * The cur_state should not last for more than max_wait secs */ - for (i = 0; i < (max_wait * 1000); i++) { + for (i = 0; i < max_wait; i++) { curr_abs_state = instance->instancet-> read_fw_status_reg(instance->reg_set);

if (abs_state == curr_abs_state) { - msleep(1); + msleep(1000); } else break; } diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c index cebfd734fd76..a9fef0cd382b 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_config.c +++ b/drivers/scsi/mpt3sas/mpt3sas_config.c @@ -674,10 +674,6 @@ mpt3sas_config_set_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc, r = _config_request(ioc, &mpi_request, mpi_reply, MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sizeof(*config_page)); - mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM; - r = _config_request(ioc, &mpi_request, mpi_reply, - MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, - sizeof(*config_page)); out: return r; } diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index ec48c010a3ba..aa2078d7e23e 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -3297,6 +3297,40 @@ _scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, return _scsih_check_for_pending_tm(ioc, smid); }

+/** _scsih_allow_scmd_to_device - check whether scmd needs to + * issue to IOC or not. + * @ioc: per adapter object + * @scmd: pointer to scsi command object + * + * Returns true if scmd can be issued to IOC otherwise returns false. + */ +inline bool _scsih_allow_scmd_to_device(struct MPT3SAS_ADAPTER *ioc, + struct scsi_cmnd *scmd) +{ + + if (ioc->pci_error_recovery) + return false; + + if (ioc->hba_mpi_version_belonged == MPI2_VERSION) { + if (ioc->remove_host) + return false; + + return true; + } + + if (ioc->remove_host) { + + switch (scmd->cmnd[0]) { + case SYNCHRONIZE_CACHE: + case START_STOP: + return true; + default: + return false; + } + } + + return true; +}

/** * _scsih_sas_control_complete - completion routine @@ -4059,7 +4093,7 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd) return 0; }

- if (ioc->pci_error_recovery || ioc->remove_host) { + if (!(_scsih_allow_scmd_to_device(ioc, scmd))) { scmd->result = DID_NO_CONNECT << 16; scmd->scsi_done(scmd); return 0; diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index a47cf638460a..ccb6f98550da 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -298,7 +298,7 @@ static void omap2_mcspi_set_fifo(const struct spi_device *spi, struct omap2_mcspi_cs *cs = spi->controller_state; struct omap2_mcspi *mcspi; unsigned int wcnt; - int max_fifo_depth, fifo_depth, bytes_per_word; + int max_fifo_depth, bytes_per_word; u32 chconf, xferlevel;

mcspi = spi_master_get_devdata(master); @@ -314,10 +314,6 @@ static void omap2_mcspi_set_fifo(const struct spi_device *spi, else max_fifo_depth = OMAP2_MCSPI_MAX_FIFODEPTH;

- fifo_depth = gcd(t->len, max_fifo_depth); - if (fifo_depth < 2 || fifo_depth % bytes_per_word != 0) - goto disable_fifo; - wcnt = t->len / bytes_per_word; if (wcnt > OMAP2_MCSPI_MAX_FIFOWCNT) goto disable_fifo; @@ -325,16 +321,17 @@ static void omap2_mcspi_set_fifo(const struct spi_device *spi, xferlevel = wcnt << 16; if (t->rx_buf != NULL) { chconf |= OMAP2_MCSPI_CHCONF_FFER; - xferlevel |= (fifo_depth - 1) << 8; + xferlevel |= (bytes_per_word - 1) << 8; } + if (t->tx_buf != NULL) { chconf |= OMAP2_MCSPI_CHCONF_FFET; - xferlevel |= fifo_depth - 1; + xferlevel |= bytes_per_word - 1; }

mcspi_write_reg(master, OMAP2_MCSPI_XFERLEVEL, xferlevel); mcspi_write_chconf0(spi, chconf); - mcspi->fifo_depth = fifo_depth; + mcspi->fifo_depth = max_fifo_depth;

return; } @@ -601,7 +598,6 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer) struct dma_slave_config cfg; enum dma_slave_buswidth width; unsigned es; - u32 burst; void __iomem *chstat_reg; void __iomem *irqstat_reg; int wait_res; @@ -623,22 +619,14 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer) }

count = xfer->len; - burst = 1; - - if (mcspi->fifo_depth > 0) { - if (count > mcspi->fifo_depth) - burst = mcspi->fifo_depth / es; - else - burst = count / es; - }

memset(&cfg, 0, sizeof(cfg)); cfg.src_addr = cs->phys + OMAP2_MCSPI_RX0; cfg.dst_addr = cs->phys + OMAP2_MCSPI_TX0; cfg.src_addr_width = width; cfg.dst_addr_width = width; - cfg.src_maxburst = burst; - cfg.dst_maxburst = burst; + cfg.src_maxburst = 1; + cfg.dst_maxburst = 1;

rx = xfer->rx_buf; tx = xfer->tx_buf; diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index 711ea523b325..8a69148a962a 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -1198,8 +1198,8 @@ static int sh_msiof_spi_probe(struct platform_device *pdev)

i = platform_get_irq(pdev, 0); if (i < 0) { - dev_err(&pdev->dev, "cannot get platform IRQ\n"); - ret = -ENOENT; + dev_err(&pdev->dev, "cannot get IRQ\n"); + ret = i; goto err1; }

diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c index 608403c7586b..f0572d6a5f63 100644 --- a/drivers/staging/comedi/drivers/usbduxfast.c +++ b/drivers/staging/comedi/drivers/usbduxfast.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004-2014 Bernd Porr, mail@berndporr.me.uk + * Copyright (C) 2004-2019 Bernd Porr, mail@berndporr.me.uk * * 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 @@ -17,7 +17,7 @@ * Description: University of Stirling USB DAQ & INCITE Technology Limited * Devices: [ITL] USB-DUX-FAST (usbduxfast) * Author: Bernd Porr mail@berndporr.me.uk - * Updated: 10 Oct 2014 + * Updated: 16 Nov 2019 * Status: stable */

@@ -31,6 +31,7 @@ * * * Revision history: + * 1.0: Fixed a rounding error in usbduxfast_ai_cmdtest * 0.9: Dropping the first data packet which seems to be from the last transfer. * Buffer overflows in the FX2 are handed over to comedi. * 0.92: Dropping now 4 packets. The quad buffer has to be emptied. @@ -359,6 +360,7 @@ static int usbduxfast_ai_cmdtest(struct comedi_device *dev, struct comedi_cmd *cmd) { int err = 0; + int err2 = 0; unsigned int steps; unsigned int arg;

@@ -408,11 +410,16 @@ static int usbduxfast_ai_cmdtest(struct comedi_device *dev, */ steps = (cmd->convert_arg * 30) / 1000; if (cmd->chanlist_len != 1) - err |= comedi_check_trigger_arg_min(&steps, - MIN_SAMPLING_PERIOD); - err |= comedi_check_trigger_arg_max(&steps, MAX_SAMPLING_PERIOD); - arg = (steps * 1000) / 30; - err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg); + err2 |= comedi_check_trigger_arg_min(&steps, + MIN_SAMPLING_PERIOD); + else + err2 |= comedi_check_trigger_arg_min(&steps, 1); + err2 |= comedi_check_trigger_arg_max(&steps, MAX_SAMPLING_PERIOD); + if (err2) { + err |= err2; + arg = (steps * 1000) / 30; + err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg); + }

if (cmd->stop_src == TRIG_COUNT) err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1); diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 73e5fee6cf1d..83126e2dce36 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -401,8 +401,8 @@ static irqreturn_t rcar_thermal_irq(int irq, void *data) rcar_thermal_for_each_priv(priv, common) { if (rcar_thermal_had_changed(priv, status)) { rcar_thermal_irq_disable(priv); - schedule_delayed_work(&priv->work, - msecs_to_jiffies(300)); + queue_delayed_work(system_freezable_wq, &priv->work, + msecs_to_jiffies(300)); } }

diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index 7aca2d4670e4..e645ee1cfd98 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -1187,14 +1187,13 @@ static long slgt_compat_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct slgt_info *info = tty->driver_data; - int rc = -ENOIOCTLCMD; + int rc;

if (sanity_check(info, tty->name, "compat_ioctl")) return -ENODEV; DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd));

switch (cmd) { - case MGSL_IOCSPARAMS32: rc = set_params32(info, compat_ptr(arg)); break; @@ -1214,18 +1213,11 @@ static long slgt_compat_ioctl(struct tty_struct *tty, case MGSL_IOCWAITGPIO: case MGSL_IOCGXSYNC: case MGSL_IOCGXCTRL: - case MGSL_IOCSTXIDLE: - case MGSL_IOCTXENABLE: - case MGSL_IOCRXENABLE: - case MGSL_IOCTXABORT: - case TIOCMIWAIT: - case MGSL_IOCSIF: - case MGSL_IOCSXSYNC: - case MGSL_IOCSXCTRL: - rc = ioctl(tty, cmd, arg); + rc = ioctl(tty, cmd, (unsigned long)compat_ptr(arg)); break; + default: + rc = ioctl(tty, cmd, arg); } - DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc)); return rc; } diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c index b8092bcf89a2..32dc0d9f0519 100644 --- a/drivers/usb/misc/appledisplay.c +++ b/drivers/usb/misc/appledisplay.c @@ -160,8 +160,11 @@ static int appledisplay_bl_update_status(struct backlight_device *bd) pdata->msgdata, 2, ACD_USB_TIMEOUT); mutex_unlock(&pdata->sysfslock); - - return retval; + + if (retval < 0) + return retval; + else + return 0; }

static int appledisplay_bl_get_brightness(struct backlight_device *bd) @@ -179,7 +182,12 @@ static int appledisplay_bl_get_brightness(struct backlight_device *bd) 0, pdata->msgdata, 2, ACD_USB_TIMEOUT); - brightness = pdata->msgdata[1]; + if (retval < 2) { + if (retval >= 0) + retval = -EMSGSIZE; + } else { + brightness = pdata->msgdata[1]; + } mutex_unlock(&pdata->sysfslock);

if (retval < 0) @@ -321,6 +329,7 @@ static int appledisplay_probe(struct usb_interface *iface, if (pdata) { if (pdata->urb) { usb_kill_urb(pdata->urb); + cancel_delayed_work_sync(&pdata->work); if (pdata->urbdata) usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN, pdata->urbdata, pdata->urb->transfer_dma); diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c index 64f2eeffaa00..b694e200a98e 100644 --- a/drivers/usb/misc/chaoskey.c +++ b/drivers/usb/misc/chaoskey.c @@ -412,13 +412,17 @@ static int _chaoskey_fill(struct chaoskey *dev) !dev->reading, (started ? NAK_TIMEOUT : ALEA_FIRST_TIMEOUT) );

- if (result < 0) + if (result < 0) { + usb_kill_urb(dev->urb); goto out; + }

- if (result == 0) + if (result == 0) { result = -ETIMEDOUT; - else + usb_kill_urb(dev->urb); + } else { result = dev->valid; + } out: /* Let the device go back to sleep eventually */ usb_autopm_put_interface(dev->interface); @@ -554,7 +558,21 @@ static int chaoskey_suspend(struct usb_interface *interface,

static int chaoskey_resume(struct usb_interface *interface) { + struct chaoskey *dev; + struct usb_device *udev = interface_to_usbdev(interface); + usb_dbg(interface, "resume"); + dev = usb_get_intfdata(interface); + + /* + * We may have lost power. + * In that case the device that needs a long time + * for the first requests needs an extended timeout + * again + */ + if (le16_to_cpu(udev->descriptor.idVendor) == ALEA_VENDOR_ID) + dev->reads_started = false; + return 0; } #else diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 40c58145bf80..613544d25fad 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -122,6 +122,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */ { USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */ { USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */ + { USB_DEVICE(0x10C4, 0x83AA) }, /* Mark-10 Digital Force Gauge */ { USB_DEVICE(0x10C4, 0x83D8) }, /* DekTec DTA Plus VHF/UHF Booster/Attenuator */ { USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */ { USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */ diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index ea20322e1416..14b45f3e6388 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1941,10 +1941,6 @@ static int mos7720_startup(struct usb_serial *serial) } }

- /* setting configuration feature to one */ - usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), - (__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5000); - #ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT if (product == MOSCHIP_DEVICE_ID_7715) { ret_val = mos7715_parport_init(serial); diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 03d63bad6be4..0c92252c9316 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -131,11 +131,15 @@ /* This driver also supports * ATEN UC2324 device using Moschip MCS7840 * ATEN UC2322 device using Moschip MCS7820 + * MOXA UPort 2210 device using Moschip MCS7820 */ #define USB_VENDOR_ID_ATENINTL 0x0557 #define ATENINTL_DEVICE_ID_UC2324 0x2011 #define ATENINTL_DEVICE_ID_UC2322 0x7820

+#define USB_VENDOR_ID_MOXA 0x110a +#define MOXA_DEVICE_ID_2210 0x2210 + /* Interrupt Routine Defines */

#define SERIAL_IIR_RLS 0x06 @@ -206,6 +210,7 @@ static const struct usb_device_id id_table[] = { {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL2_4)}, {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)}, {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2322)}, + {USB_DEVICE(USB_VENDOR_ID_MOXA, MOXA_DEVICE_ID_2210)}, {} /* terminating entry */ }; MODULE_DEVICE_TABLE(usb, id_table); @@ -2089,6 +2094,7 @@ static int mos7840_probe(struct usb_serial *serial, const struct usb_device_id *id) { u16 product = le16_to_cpu(serial->dev->descriptor.idProduct); + u16 vid = le16_to_cpu(serial->dev->descriptor.idVendor); u8 *buf; int device_type;

@@ -2098,6 +2104,11 @@ static int mos7840_probe(struct usb_serial *serial, goto out; }

+ if (vid == USB_VENDOR_ID_MOXA && product == MOXA_DEVICE_ID_2210) { + device_type = MOSCHIP_DEVICE_ID_7820; + goto out; + } + buf = kzalloc(VENDOR_READ_LENGTH, GFP_KERNEL); if (!buf) return -ENOMEM; @@ -2350,11 +2361,6 @@ static int mos7840_port_probe(struct usb_serial_port *port) goto error; } else dev_dbg(&port->dev, "ZLP_REG5 Writing success status%d\n", status); - - /* setting configuration feature to one */ - usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), - 0x03, 0x00, 0x01, 0x00, NULL, 0x00, - MOS_WDR_TIMEOUT); } return 0; error: diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 00a6e62a68a8..084332a5855e 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -200,6 +200,7 @@ static void option_instat_callback(struct urb *urb); #define DELL_PRODUCT_5804_MINICARD_ATT 0x819b /* Novatel E371 */

#define DELL_PRODUCT_5821E 0x81d7 +#define DELL_PRODUCT_5821E_ESIM 0x81e0

#define KYOCERA_VENDOR_ID 0x0c88 #define KYOCERA_PRODUCT_KPC650 0x17da @@ -1043,6 +1044,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) }, { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E), .driver_info = RSVD(0) | RSVD(1) | RSVD(6) }, + { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E_ESIM), + .driver_info = RSVD(0) | RSVD(1) | RSVD(6) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, /* ADU-E100, ADU-310 */ { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) }, @@ -1987,6 +1990,10 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x13) }, { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x14) }, { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x1b) }, + { USB_DEVICE(0x0489, 0xe0b4), /* Foxconn T77W968 */ + .driver_info = RSVD(0) | RSVD(1) | RSVD(6) }, + { USB_DEVICE(0x0489, 0xe0b5), /* Foxconn T77W968 ESIM */ + .driver_info = RSVD(0) | RSVD(1) | RSVD(6) }, { USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 */ .driver_info = RSVD(4) | RSVD(5) | RSVD(6) }, { USB_DEVICE(0x2cb7, 0x0104), /* Fibocom NL678 series */ diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 2f09294c5946..e459cd7302e2 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -427,7 +427,7 @@ static inline int virtqueue_add(struct virtqueue *_vq, kfree(desc);

END_USE(vq); - return -EIO; + return -ENOMEM; }

/** diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 6af117af9780..731cf54f75c6 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -358,7 +358,10 @@ static enum bp_state reserve_additional_memory(void) * callers drop the mutex before trying again. */ mutex_unlock(&balloon_mutex); + /* add_memory_resource() requires the device_hotplug lock */ + lock_device_hotplug(); rc = add_memory_resource(nid, resource, memhp_auto_online); + unlock_device_hotplug(); mutex_lock(&balloon_mutex);

if (rc) { diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 3df434eb1474..3faccbf35e9f 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -2973,6 +2973,10 @@ int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,

again: b = get_old_root(root, time_seq); + if (!b) { + ret = -EIO; + goto done; + } level = btrfs_header_level(b); p->locks[level] = BTRFS_READ_LOCK;

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 7fcddaaca8a5..049cff197d2a 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1630,7 +1630,6 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req, if (IS_ERR(realdn)) { err = PTR_ERR(realdn); d_drop(dn); - dn = NULL; goto next_item; } dn = realdn; diff --git a/fs/dlm/member.c b/fs/dlm/member.c index 9c47f1c14a8b..a47ae99f7bcb 100644 --- a/fs/dlm/member.c +++ b/fs/dlm/member.c @@ -683,7 +683,7 @@ int dlm_ls_start(struct dlm_ls *ls)

error = dlm_config_nodes(ls->ls_name, &nodes, &count); if (error < 0) - goto fail; + goto fail_rv;

spin_lock(&ls->ls_recover_lock);

@@ -715,8 +715,9 @@ int dlm_ls_start(struct dlm_ls *ls) return 0;

fail: - kfree(rv); kfree(nodes); + fail_rv: + kfree(rv); return error; }

diff --git a/fs/dlm/user.c b/fs/dlm/user.c index 9ac65914ab5b..57f2aacec97f 100644 --- a/fs/dlm/user.c +++ b/fs/dlm/user.c @@ -700,7 +700,7 @@ static int copy_result_to_user(struct dlm_user_args *ua, int compat, result.version[0] = DLM_DEVICE_VERSION_MAJOR; result.version[1] = DLM_DEVICE_VERSION_MINOR; result.version[2] = DLM_DEVICE_VERSION_PATCH; - memcpy(&result.lksb, &ua->lksb, sizeof(struct dlm_lksb)); + memcpy(&result.lksb, &ua->lksb, offsetof(struct dlm_lksb, sb_lvbptr)); result.user_lksb = ua->user_lksb;

/* FIXME: dlm1 provides for the user's bastparam/addr to not be updated diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 9041805096e0..0206c8c20784 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1201,6 +1201,7 @@ int do_write_data_page(struct f2fs_io_info *fio) /* This page is already truncated */ if (fio->old_blkaddr == NULL_ADDR) { ClearPageUptodate(page); + clear_cold_data(page); goto out_writepage; }

@@ -1337,8 +1338,10 @@ static int f2fs_write_data_page(struct page *page, clear_cold_data(page); out: inode_dec_dirty_pages(inode); - if (err) + if (err) { ClearPageUptodate(page); + clear_cold_data(page); + }

if (wbc->for_reclaim) { f2fs_submit_merged_bio_cond(sbi, NULL, page, 0, DATA, WRITE); @@ -1821,6 +1824,8 @@ void f2fs_invalidate_page(struct page *page, unsigned int offset, inode_dec_dirty_pages(inode); }

+ clear_cold_data(page); + /* This is atomic written page, keep Private */ if (IS_ATOMIC_WRITTEN_PAGE(page)) return; @@ -1839,6 +1844,7 @@ int f2fs_release_page(struct page *page, gfp_t wait) if (IS_ATOMIC_WRITTEN_PAGE(page)) return 0;

+ clear_cold_data(page); set_page_private(page, 0); ClearPagePrivate(page); return 1; diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index af719d93507e..b414892be08b 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -772,6 +772,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, clear_page_dirty_for_io(page); ClearPagePrivate(page); ClearPageUptodate(page); + clear_cold_data(page); inode_dec_dirty_pages(dir); } f2fs_put_page(page, 1); diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 1d5a35213810..c4c84af1ec17 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -227,8 +227,10 @@ static int __revoke_inmem_pages(struct inode *inode, } next: /* we don't need to invalidate this in the sccessful status */ - if (drop || recover) + if (drop || recover) { ClearPageUptodate(page); + clear_cold_data(page); + } set_page_private(page, 0); ClearPagePrivate(page); f2fs_put_page(page, 1); diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index f77a38755aea..0a80f6636549 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -630,7 +630,10 @@ static void __rs_deltree(struct gfs2_blkreserv *rs) RB_CLEAR_NODE(&rs->rs_node);

if (rs->rs_free) { - struct gfs2_bitmap *bi = rbm_bi(&rs->rs_rbm); + u64 last_block = gfs2_rbm_to_block(&rs->rs_rbm) + + rs->rs_free - 1; + struct gfs2_rbm last_rbm = { .rgd = rs->rs_rbm.rgd, }; + struct gfs2_bitmap *start, *last;

/* return reserved blocks to the rgrp */ BUG_ON(rs->rs_rbm.rgd->rd_reserved < rs->rs_free); @@ -641,7 +644,13 @@ static void __rs_deltree(struct gfs2_blkreserv *rs) it will force the number to be recalculated later. */ rgd->rd_extfail_pt += rs->rs_free; rs->rs_free = 0; - clear_bit(GBF_FULL, &bi->bi_flags); + if (gfs2_rbm_from_block(&last_rbm, last_block)) + return; + start = rbm_bi(&rs->rs_rbm); + last = rbm_bi(&last_rbm); + do + clear_bit(GBF_FULL, &start->bi_flags); + while (start++ != last); } }

diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c index 2e713673df42..85dab71bee74 100644 --- a/fs/hfs/brec.c +++ b/fs/hfs/brec.c @@ -444,6 +444,7 @@ static int hfs_brec_update_parent(struct hfs_find_data *fd) /* restore search_key */ hfs_bnode_read_key(node, fd->search_key, 14); } + new_node = NULL; }

if (!rec && node->parent) diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c index 320f4372f172..77eff447d301 100644 --- a/fs/hfs/btree.c +++ b/fs/hfs/btree.c @@ -219,25 +219,17 @@ static struct hfs_bnode *hfs_bmap_new_bmap(struct hfs_bnode *prev, u32 idx) return node; }

-struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) +/* Make sure @tree has enough space for the @rsvd_nodes */ +int hfs_bmap_reserve(struct hfs_btree *tree, int rsvd_nodes) { - struct hfs_bnode *node, *next_node; - struct page **pagep; - u32 nidx, idx; - unsigned off; - u16 off16; - u16 len; - u8 *data, byte, m; - int i; - - while (!tree->free_nodes) { - struct inode *inode = tree->inode; - u32 count; - int res; + struct inode *inode = tree->inode; + u32 count; + int res;

+ while (tree->free_nodes < rsvd_nodes) { res = hfs_extend_file(inode); if (res) - return ERR_PTR(res); + return res; HFS_I(inode)->phys_size = inode->i_size = (loff_t)HFS_I(inode)->alloc_blocks * HFS_SB(tree->sb)->alloc_blksz; @@ -245,9 +237,26 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) tree->sb->s_blocksize_bits; inode_set_bytes(inode, inode->i_size); count = inode->i_size >> tree->node_size_shift; - tree->free_nodes = count - tree->node_count; + tree->free_nodes += count - tree->node_count; tree->node_count = count; } + return 0; +} + +struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) +{ + struct hfs_bnode *node, *next_node; + struct page **pagep; + u32 nidx, idx; + unsigned off; + u16 off16; + u16 len; + u8 *data, byte, m; + int i, res; + + res = hfs_bmap_reserve(tree, 1); + if (res) + return ERR_PTR(res);

nidx = 0; node = hfs_bnode_find(tree, nidx); diff --git a/fs/hfs/btree.h b/fs/hfs/btree.h index f6bd266d70b5..2715f416b5a8 100644 --- a/fs/hfs/btree.h +++ b/fs/hfs/btree.h @@ -81,6 +81,7 @@ struct hfs_find_data { extern struct hfs_btree *hfs_btree_open(struct super_block *, u32, btree_keycmp); extern void hfs_btree_close(struct hfs_btree *); extern void hfs_btree_write(struct hfs_btree *); +extern int hfs_bmap_reserve(struct hfs_btree *, int); extern struct hfs_bnode * hfs_bmap_alloc(struct hfs_btree *); extern void hfs_bmap_free(struct hfs_bnode *node);

diff --git a/fs/hfs/catalog.c b/fs/hfs/catalog.c index 8a66405b0f8b..d365bf0b8c77 100644 --- a/fs/hfs/catalog.c +++ b/fs/hfs/catalog.c @@ -97,6 +97,14 @@ int hfs_cat_create(u32 cnid, struct inode *dir, const struct qstr *str, struct i if (err) return err;

+ /* + * Fail early and avoid ENOSPC during the btree operations. We may + * have to split the root node at most once. + */ + err = hfs_bmap_reserve(fd.tree, 2 * fd.tree->depth); + if (err) + goto err2; + hfs_cat_build_key(sb, fd.search_key, cnid, NULL); entry_size = hfs_cat_build_thread(sb, &entry, S_ISDIR(inode->i_mode) ? HFS_CDR_THD : HFS_CDR_FTH, @@ -295,6 +303,14 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, const struct qstr *src_name, return err; dst_fd = src_fd;

+ /* + * Fail early and avoid ENOSPC during the btree operations. We may + * have to split the root node at most once. + */ + err = hfs_bmap_reserve(src_fd.tree, 2 * src_fd.tree->depth); + if (err) + goto out; + /* find the old dir entry and read the data */ hfs_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name); err = hfs_brec_find(&src_fd); diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c index e33a0d36a93e..cbe4fca96378 100644 --- a/fs/hfs/extent.c +++ b/fs/hfs/extent.c @@ -117,6 +117,10 @@ static int __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd) if (HFS_I(inode)->flags & HFS_FLG_EXT_NEW) { if (res != -ENOENT) return res; + /* Fail early and avoid ENOSPC during the btree operation */ + res = hfs_bmap_reserve(fd->tree, fd->tree->depth + 1); + if (res) + return res; hfs_brec_insert(fd, HFS_I(inode)->cached_extents, sizeof(hfs_extent_rec)); HFS_I(inode)->flags &= ~(HFS_FLG_EXT_DIRTY|HFS_FLG_EXT_NEW); } else { @@ -300,7 +304,7 @@ int hfs_free_fork(struct super_block *sb, struct hfs_cat_file *file, int type) return 0;

blocks = 0; - for (i = 0; i < 3; extent++, i++) + for (i = 0; i < 3; i++) blocks += be16_to_cpu(extent[i].count);

res = hfs_free_extents(sb, extent, blocks, blocks); @@ -341,7 +345,9 @@ int hfs_get_block(struct inode *inode, sector_t block, ablock = (u32)block / HFS_SB(sb)->fs_div;

if (block >= HFS_I(inode)->fs_blocks) { - if (block > HFS_I(inode)->fs_blocks || !create) + if (!create) + return 0; + if (block > HFS_I(inode)->fs_blocks) return -EIO; if (ablock >= HFS_I(inode)->alloc_blocks) { res = hfs_extend_file(inode); diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index f776acf2378a..de0d6d4c46b6 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -641,6 +641,8 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)

truncate_setsize(inode, attr->ia_size); hfs_file_truncate(inode); + inode->i_atime = inode->i_mtime = inode->i_ctime = + current_time(inode); }

setattr_copy(inode, attr); diff --git a/fs/hfsplus/attributes.c b/fs/hfsplus/attributes.c index e5b221de7de6..d7455ea70287 100644 --- a/fs/hfsplus/attributes.c +++ b/fs/hfsplus/attributes.c @@ -216,6 +216,11 @@ int hfsplus_create_attr(struct inode *inode, if (err) goto failed_init_create_attr;

+ /* Fail early and avoid ENOSPC during the btree operation */ + err = hfs_bmap_reserve(fd.tree, fd.tree->depth + 1); + if (err) + goto failed_create_attr; + if (name) { err = hfsplus_attr_build_key(sb, fd.search_key, inode->i_ino, name); @@ -312,6 +317,11 @@ int hfsplus_delete_attr(struct inode *inode, const char *name) if (err) return err;

+ /* Fail early and avoid ENOSPC during the btree operation */ + err = hfs_bmap_reserve(fd.tree, fd.tree->depth); + if (err) + goto out; + if (name) { err = hfsplus_attr_build_key(sb, fd.search_key, inode->i_ino, name); diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c index 1002a0c08319..20ce698251ad 100644 --- a/fs/hfsplus/brec.c +++ b/fs/hfsplus/brec.c @@ -447,6 +447,7 @@ static int hfs_brec_update_parent(struct hfs_find_data *fd) /* restore search_key */ hfs_bnode_read_key(node, fd->search_key, 14); } + new_node = NULL; }

if (!rec && node->parent) diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c index 8d2256454efe..7e96b4c294f7 100644 --- a/fs/hfsplus/btree.c +++ b/fs/hfsplus/btree.c @@ -341,26 +341,21 @@ static struct hfs_bnode *hfs_bmap_new_bmap(struct hfs_bnode *prev, u32 idx) return node; }

-struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) +/* Make sure @tree has enough space for the @rsvd_nodes */ +int hfs_bmap_reserve(struct hfs_btree *tree, int rsvd_nodes) { - struct hfs_bnode *node, *next_node; - struct page **pagep; - u32 nidx, idx; - unsigned off; - u16 off16; - u16 len; - u8 *data, byte, m; - int i; + struct inode *inode = tree->inode; + struct hfsplus_inode_info *hip = HFSPLUS_I(inode); + u32 count; + int res;

- while (!tree->free_nodes) { - struct inode *inode = tree->inode; - struct hfsplus_inode_info *hip = HFSPLUS_I(inode); - u32 count; - int res; + if (rsvd_nodes <= 0) + return 0;

+ while (tree->free_nodes < rsvd_nodes) { res = hfsplus_file_extend(inode, hfs_bnode_need_zeroout(tree)); if (res) - return ERR_PTR(res); + return res; hip->phys_size = inode->i_size = (loff_t)hip->alloc_blocks << HFSPLUS_SB(tree->sb)->alloc_blksz_shift; @@ -368,9 +363,26 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) hip->alloc_blocks << HFSPLUS_SB(tree->sb)->fs_shift; inode_set_bytes(inode, inode->i_size); count = inode->i_size >> tree->node_size_shift; - tree->free_nodes = count - tree->node_count; + tree->free_nodes += count - tree->node_count; tree->node_count = count; } + return 0; +} + +struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) +{ + struct hfs_bnode *node, *next_node; + struct page **pagep; + u32 nidx, idx; + unsigned off; + u16 off16; + u16 len; + u8 *data, byte, m; + int i, res; + + res = hfs_bmap_reserve(tree, 1); + if (res) + return ERR_PTR(res);

nidx = 0; node = hfs_bnode_find(tree, nidx); diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c index a5e00f7a4c14..947da72e72a3 100644 --- a/fs/hfsplus/catalog.c +++ b/fs/hfsplus/catalog.c @@ -264,6 +264,14 @@ int hfsplus_create_cat(u32 cnid, struct inode *dir, if (err) return err;

+ /* + * Fail early and avoid ENOSPC during the btree operations. We may + * have to split the root node at most once. + */ + err = hfs_bmap_reserve(fd.tree, 2 * fd.tree->depth); + if (err) + goto err2; + hfsplus_cat_build_key_with_cnid(sb, fd.search_key, cnid); entry_size = hfsplus_fill_cat_thread(sb, &entry, S_ISDIR(inode->i_mode) ? @@ -332,6 +340,14 @@ int hfsplus_delete_cat(u32 cnid, struct inode *dir, const struct qstr *str) if (err) return err;

+ /* + * Fail early and avoid ENOSPC during the btree operations. We may + * have to split the root node at most once. + */ + err = hfs_bmap_reserve(fd.tree, 2 * (int)fd.tree->depth - 2); + if (err) + goto out; + if (!str) { int len;

@@ -432,6 +448,14 @@ int hfsplus_rename_cat(u32 cnid, return err; dst_fd = src_fd;

+ /* + * Fail early and avoid ENOSPC during the btree operations. We may + * have to split the root node at most twice. + */ + err = hfs_bmap_reserve(src_fd.tree, 4 * (int)src_fd.tree->depth - 1); + if (err) + goto out; + /* find the old dir entry and read the data */ err = hfsplus_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name); diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c index feca524ce2a5..d93c051559cb 100644 --- a/fs/hfsplus/extents.c +++ b/fs/hfsplus/extents.c @@ -99,6 +99,10 @@ static int __hfsplus_ext_write_extent(struct inode *inode, if (hip->extent_state & HFSPLUS_EXT_NEW) { if (res != -ENOENT) return res; + /* Fail early and avoid ENOSPC during the btree operation */ + res = hfs_bmap_reserve(fd->tree, fd->tree->depth + 1); + if (res) + return res; hfs_brec_insert(fd, hip->cached_extents, sizeof(hfsplus_extent_rec)); hip->extent_state &= ~(HFSPLUS_EXT_DIRTY | HFSPLUS_EXT_NEW); @@ -232,7 +236,9 @@ int hfsplus_get_block(struct inode *inode, sector_t iblock, ablock = iblock >> sbi->fs_shift;

if (iblock >= hip->fs_blocks) { - if (iblock > hip->fs_blocks || !create) + if (!create) + return 0; + if (iblock > hip->fs_blocks) return -EIO; if (ablock >= hip->alloc_blocks) { res = hfsplus_file_extend(inode, false); diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index a3f03b247463..35cd703c6604 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -311,6 +311,7 @@ static inline unsigned short hfsplus_min_io_size(struct super_block *sb) #define hfs_btree_open hfsplus_btree_open #define hfs_btree_close hfsplus_btree_close #define hfs_btree_write hfsplus_btree_write +#define hfs_bmap_reserve hfsplus_bmap_reserve #define hfs_bmap_alloc hfsplus_bmap_alloc #define hfs_bmap_free hfsplus_bmap_free #define hfs_bnode_read hfsplus_bnode_read @@ -395,6 +396,7 @@ u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors, struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id); void hfs_btree_close(struct hfs_btree *tree); int hfs_btree_write(struct hfs_btree *tree); +int hfs_bmap_reserve(struct hfs_btree *tree, int rsvd_nodes); struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree); void hfs_bmap_free(struct hfs_bnode *node);

diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index 2e796f8302ff..cfd380e2743d 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c @@ -260,6 +260,7 @@ static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr) } truncate_setsize(inode, attr->ia_size); hfsplus_file_truncate(inode); + inode->i_mtime = inode->i_ctime = current_time(inode); }

setattr_copy(inode, attr); diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c index 935bac253991..1403c88f2b05 100644 --- a/fs/ocfs2/buffer_head_io.c +++ b/fs/ocfs2/buffer_head_io.c @@ -98,25 +98,34 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh, return ret; }

+/* Caller must provide a bhs[] with all NULL or non-NULL entries, so it + * will be easier to handle read failure. + */ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block, unsigned int nr, struct buffer_head *bhs[]) { int status = 0; unsigned int i; struct buffer_head *bh; + int new_bh = 0;

trace_ocfs2_read_blocks_sync((unsigned long long)block, nr);

if (!nr) goto bail;

+ /* Don't put buffer head and re-assign it to NULL if it is allocated + * outside since the caller can't be aware of this alternation! + */ + new_bh = (bhs[0] == NULL); + for (i = 0 ; i < nr ; i++) { if (bhs[i] == NULL) { bhs[i] = sb_getblk(osb->sb, block++); if (bhs[i] == NULL) { status = -ENOMEM; mlog_errno(status); - goto bail; + break; } } bh = bhs[i]; @@ -156,9 +165,26 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block, submit_bh(REQ_OP_READ, 0, bh); }

+read_failure: for (i = nr; i > 0; i--) { bh = bhs[i - 1];

+ if (unlikely(status)) { + if (new_bh && bh) { + /* If middle bh fails, let previous bh + * finish its read and then put it to + * aovoid bh leak + */ + if (!buffer_jbd(bh)) + wait_on_buffer(bh); + put_bh(bh); + bhs[i - 1] = NULL; + } else if (bh && buffer_uptodate(bh)) { + clear_buffer_uptodate(bh); + } + continue; + } + /* No need to wait on the buffer if it's managed by JBD. */ if (!buffer_jbd(bh)) wait_on_buffer(bh); @@ -168,8 +194,7 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block, * so we can safely record this and loop back * to cleanup the other buffers. */ status = -EIO; - put_bh(bh); - bhs[i - 1] = NULL; + goto read_failure; } }

@@ -177,6 +202,9 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block, return status; }

+/* Caller must provide a bhs[] with all NULL or non-NULL entries, so it + * will be easier to handle read failure. + */ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, struct buffer_head *bhs[], int flags, int (*validate)(struct super_block *sb, @@ -186,6 +214,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, int i, ignore_cache = 0; struct buffer_head *bh; struct super_block *sb = ocfs2_metadata_cache_get_super(ci); + int new_bh = 0;

trace_ocfs2_read_blocks_begin(ci, (unsigned long long)block, nr, flags);

@@ -211,6 +240,11 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, goto bail; }

+ /* Don't put buffer head and re-assign it to NULL if it is allocated + * outside since the caller can't be aware of this alternation! + */ + new_bh = (bhs[0] == NULL); + ocfs2_metadata_cache_io_lock(ci); for (i = 0 ; i < nr ; i++) { if (bhs[i] == NULL) { @@ -219,7 +253,8 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, ocfs2_metadata_cache_io_unlock(ci); status = -ENOMEM; mlog_errno(status); - goto bail; + /* Don't forget to put previous bh! */ + break; } } bh = bhs[i]; @@ -313,16 +348,27 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, } }

- status = 0; - +read_failure: for (i = (nr - 1); i >= 0; i--) { bh = bhs[i];

if (!(flags & OCFS2_BH_READAHEAD)) { - if (status) { - /* Clear the rest of the buffers on error */ - put_bh(bh); - bhs[i] = NULL; + if (unlikely(status)) { + /* Clear the buffers on error including those + * ever succeeded in reading + */ + if (new_bh && bh) { + /* If middle bh fails, let previous bh + * finish its read and then put it to + * aovoid bh leak + */ + if (!buffer_jbd(bh)) + wait_on_buffer(bh); + put_bh(bh); + bhs[i] = NULL; + } else if (bh && buffer_uptodate(bh)) { + clear_buffer_uptodate(bh); + } continue; } /* We know this can't have changed as we hold the @@ -340,9 +386,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, * uptodate. */ status = -EIO; clear_buffer_needs_validate(bh); - put_bh(bh); - bhs[i] = NULL; - continue; + goto read_failure; }

if (buffer_needs_validate(bh)) { @@ -352,11 +396,8 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr, BUG_ON(buffer_jbd(bh)); clear_buffer_needs_validate(bh); status = validate(sb, bh); - if (status) { - put_bh(bh); - bhs[i] = NULL; - continue; - } + if (status) + goto read_failure; } }

diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c index e7b760deefae..32d60f69db24 100644 --- a/fs/ocfs2/dlm/dlmdebug.c +++ b/fs/ocfs2/dlm/dlmdebug.c @@ -329,7 +329,7 @@ void dlm_print_one_mle(struct dlm_master_list_entry *mle) { char *buf;

- buf = (char *) get_zeroed_page(GFP_NOFS); + buf = (char *) get_zeroed_page(GFP_ATOMIC); if (buf) { dump_mle(mle, buf, PAGE_SIZE - 1); free_page((unsigned long)buf); diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 5729d55da67d..2c3e975126b3 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -3421,7 +3421,7 @@ static int ocfs2_downconvert_lock(struct ocfs2_super *osb, * we can recover correctly from node failure. Otherwise, we may get * invalid LVB in LKB, but without DLM_SBF_VALNOTVALID being set. */ - if (!ocfs2_is_o2cb_active() && + if (ocfs2_userspace_stack(osb) && lockres->l_ops->flags & LOCK_TYPE_USES_LVB) lvb = 1;

diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c index c179afd0051a..afaa044f5f6b 100644 --- a/fs/ocfs2/move_extents.c +++ b/fs/ocfs2/move_extents.c @@ -25,6 +25,7 @@ #include "ocfs2_ioctl.h"

#include "alloc.h" +#include "localalloc.h" #include "aops.h" #include "dlmglue.h" #include "extent_map.h" @@ -222,6 +223,7 @@ static int ocfs2_defrag_extent(struct ocfs2_move_extents_context *context, struct ocfs2_refcount_tree *ref_tree = NULL; u32 new_phys_cpos, new_len; u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos); + int need_free = 0;

if ((ext_flags & OCFS2_EXT_REFCOUNTED) && *len) {

@@ -315,6 +317,7 @@ static int ocfs2_defrag_extent(struct ocfs2_move_extents_context *context, if (!partial) { context->range->me_flags &= ~OCFS2_MOVE_EXT_FL_COMPLETE; ret = -ENOSPC; + need_free = 1; goto out_commit; } } @@ -339,6 +342,20 @@ static int ocfs2_defrag_extent(struct ocfs2_move_extents_context *context, mlog_errno(ret);

out_commit: + if (need_free && context->data_ac) { + struct ocfs2_alloc_context *data_ac = context->data_ac; + + if (context->data_ac->ac_which == OCFS2_AC_USE_LOCAL) + ocfs2_free_local_alloc_bits(osb, handle, data_ac, + new_phys_cpos, new_len); + else + ocfs2_free_clusters(handle, + data_ac->ac_inode, + data_ac->ac_bh, + ocfs2_clusters_to_blocks(osb->sb, new_phys_cpos), + new_len); + } + ocfs2_commit_trans(osb, handle);

out_unlock_mutex: diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index 820359096c7a..52c07346bea3 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -48,12 +48,6 @@ static char ocfs2_hb_ctl_path[OCFS2_MAX_HB_CTL_PATH] = "/sbin/ocfs2_hb_ctl"; */ static struct ocfs2_stack_plugin *active_stack;

-inline int ocfs2_is_o2cb_active(void) -{ - return !strcmp(active_stack->sp_name, OCFS2_STACK_PLUGIN_O2CB); -} -EXPORT_SYMBOL_GPL(ocfs2_is_o2cb_active); - static struct ocfs2_stack_plugin *ocfs2_stack_lookup(const char *name) { struct ocfs2_stack_plugin *p; diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h index e3036e1790e8..f2dce10fae54 100644 --- a/fs/ocfs2/stackglue.h +++ b/fs/ocfs2/stackglue.h @@ -298,9 +298,6 @@ void ocfs2_stack_glue_set_max_proto_version(struct ocfs2_protocol_version *max_p int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin); void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin);

-/* In ocfs2_downconvert_lock(), we need to know which stack we are using */ -int ocfs2_is_o2cb_active(void); - extern struct kset *ocfs2_kset;

#endif /* STACKGLUE_H */ diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index c387467d574c..e108c945ac1f 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -1497,6 +1497,18 @@ static int ocfs2_xa_check_space(struct ocfs2_xa_loc *loc, return loc->xl_ops->xlo_check_space(loc, xi); }

+static void ocfs2_xa_add_entry(struct ocfs2_xa_loc *loc, u32 name_hash) +{ + loc->xl_ops->xlo_add_entry(loc, name_hash); + loc->xl_entry->xe_name_hash = cpu_to_le32(name_hash); + /* + * We can't leave the new entry's xe_name_offset at zero or + * add_namevalue() will go nuts. We set it to the size of our + * storage so that it can never be less than any other entry. + */ + loc->xl_entry->xe_name_offset = cpu_to_le16(loc->xl_size); +} + static void ocfs2_xa_add_namevalue(struct ocfs2_xa_loc *loc, struct ocfs2_xattr_info *xi) { @@ -2128,31 +2140,29 @@ static int ocfs2_xa_prepare_entry(struct ocfs2_xa_loc *loc, if (rc) goto out;

- if (!loc->xl_entry) { - rc = -EINVAL; - goto out; - } - - if (ocfs2_xa_can_reuse_entry(loc, xi)) { - orig_value_size = loc->xl_entry->xe_value_size; - rc = ocfs2_xa_reuse_entry(loc, xi, ctxt); - if (rc) - goto out; - goto alloc_value; - } + if (loc->xl_entry) { + if (ocfs2_xa_can_reuse_entry(loc, xi)) { + orig_value_size = loc->xl_entry->xe_value_size; + rc = ocfs2_xa_reuse_entry(loc, xi, ctxt); + if (rc) + goto out; + goto alloc_value; + }

- if (!ocfs2_xattr_is_local(loc->xl_entry)) { - orig_clusters = ocfs2_xa_value_clusters(loc); - rc = ocfs2_xa_value_truncate(loc, 0, ctxt); - if (rc) { - mlog_errno(rc); - ocfs2_xa_cleanup_value_truncate(loc, - "overwriting", - orig_clusters); - goto out; + if (!ocfs2_xattr_is_local(loc->xl_entry)) { + orig_clusters = ocfs2_xa_value_clusters(loc); + rc = ocfs2_xa_value_truncate(loc, 0, ctxt); + if (rc) { + mlog_errno(rc); + ocfs2_xa_cleanup_value_truncate(loc, + "overwriting", + orig_clusters); + goto out; + } } - } - ocfs2_xa_wipe_namevalue(loc); + ocfs2_xa_wipe_namevalue(loc); + } else + ocfs2_xa_add_entry(loc, name_hash);

/* * If we get here, we have a blank entry. Fill it. We grow our diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 651755353374..0b58b9d419e8 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -57,6 +57,32 @@ static kmem_zone_t *xfs_buf_zone; #define xb_to_gfp(flags) \ ((((flags) & XBF_READ_AHEAD) ? __GFP_NORETRY : GFP_NOFS) | __GFP_NOWARN)

+/* + * Locking orders + * + * xfs_buf_ioacct_inc: + * xfs_buf_ioacct_dec: + * b_sema (caller holds) + * b_lock + * + * xfs_buf_stale: + * b_sema (caller holds) + * b_lock + * lru_lock + * + * xfs_buf_rele: + * b_lock + * pag_buf_lock + * lru_lock + * + * xfs_buftarg_wait_rele + * lru_lock + * b_lock (trylock due to inversion) + * + * xfs_buftarg_isolate + * lru_lock + * b_lock (trylock due to inversion) + */

static inline int xfs_buf_is_vmapped( @@ -957,8 +983,18 @@ xfs_buf_rele(

ASSERT(atomic_read(&bp->b_hold) > 0);

- release = atomic_dec_and_lock(&bp->b_hold, &pag->pag_buf_lock); + /* + * We grab the b_lock here first to serialise racing xfs_buf_rele() + * calls. The pag_buf_lock being taken on the last reference only + * serialises against racing lookups in xfs_buf_find(). IOWs, the second + * to last reference we drop here is not serialised against the last + * reference until we take bp->b_lock. Hence if we don't grab b_lock + * first, the last "release" reference can win the race to the lock and + * free the buffer before the second-to-last reference is processed, + * leading to a use-after-free scenario. + */ spin_lock(&bp->b_lock); + release = atomic_dec_and_lock(&bp->b_hold, &pag->pag_buf_lock); if (!release) { /* * Drop the in-flight state if the buffer is already on the LRU diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 3b77588a9360..dec03c0dbc21 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -185,8 +185,13 @@ extern int bitmap_print_to_pagebuf(bool list, char *buf, #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) #define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))

+/* + * The static inlines below do not handle constant nbits==0 correctly, + * so make such users (should any ever turn up) call the out-of-line + * versions. + */ #define small_const_nbits(nbits) \ - (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG) + (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0)

static inline void bitmap_zero(unsigned long *dst, unsigned int nbits) { @@ -316,7 +321,7 @@ static __always_inline int bitmap_weight(const unsigned long *src, unsigned int }

static inline void bitmap_shift_right(unsigned long *dst, const unsigned long *src, - unsigned int shift, int nbits) + unsigned int shift, unsigned int nbits) { if (small_const_nbits(nbits)) *dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> shift; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 0590e7d47b02..ab90a8541aaa 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -843,6 +843,7 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu); void kvm_vcpu_kick(struct kvm_vcpu *vcpu);

bool kvm_is_reserved_pfn(kvm_pfn_t pfn); +bool kvm_is_zone_device_pfn(kvm_pfn_t pfn);

struct kvm_irq_ack_notifier { struct hlist_node link; diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 134a2f69c21a..9469eef30095 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -272,6 +272,7 @@ static inline void remove_memory(int nid, u64 start, u64 size) {}

extern int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn, void *arg, int (*func)(struct memory_block *, void *)); +extern int __add_memory(int nid, u64 start, u64 size); extern int add_memory(int nid, u64 start, u64 size); extern int add_memory_resource(int nid, struct resource *resource, bool online); extern int zone_for_memory(int nid, u64 start, u64 size, int zone_default, diff --git a/include/linux/mfd/max8997.h b/include/linux/mfd/max8997.h index cf815577bd68..3ae1fe743bc3 100644 --- a/include/linux/mfd/max8997.h +++ b/include/linux/mfd/max8997.h @@ -178,7 +178,6 @@ struct max8997_led_platform_data { struct max8997_platform_data { /* IRQ */ int ono; - int wakeup;

/* ---- PMIC ---- */ struct max8997_regulator_data *regulators; diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h index 638222e43e48..93011c61aafd 100644 --- a/include/linux/mfd/mc13xxx.h +++ b/include/linux/mfd/mc13xxx.h @@ -247,6 +247,7 @@ struct mc13xxx_platform_data { #define MC13XXX_ADC0_TSMOD0 (1 << 12) #define MC13XXX_ADC0_TSMOD1 (1 << 13) #define MC13XXX_ADC0_TSMOD2 (1 << 14) +#define MC13XXX_ADC0_CHRGRAWDIV (1 << 15) #define MC13XXX_ADC0_ADINC1 (1 << 16) #define MC13XXX_ADC0_ADINC2 (1 << 17)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c index c2aaf539728f..854e90be1a02 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1096,7 +1096,7 @@ static void audit_log_execve_info(struct audit_context *context, }

/* write as much as we can to the audit log */ - if (len_buf > 0) { + if (len_buf >= 0) { /* NOTE: some magic numbers here - basically if we * can't fit a reasonable amount of data into the * existing audit buffer, flush it and start with diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index a0339c458c14..c1873d325ebd 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1050,7 +1050,7 @@ void __init setup_log_buf(int early) { unsigned long flags; char *new_log_buf; - int free; + unsigned int free;

if (log_buf != __log_buf) return; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index d8afae1bd5c5..b765a58cf20f 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -7950,13 +7950,22 @@ static int load_balance(int this_cpu, struct rq *this_rq, sd->nr_balance_failed = 0;

out_one_pinned: + ld_moved = 0; + + /* + * idle_balance() disregards balance intervals, so we could repeatedly + * reach this code, which would lead to balance_interval skyrocketting + * in a short amount of time. Skip the balance_interval increase logic + * to avoid that. + */ + if (env.idle == CPU_NEWLY_IDLE) + goto out; + /* tune up the balancing interval */ if (((env.flags & LBF_ALL_PINNED) && sd->balance_interval < MAX_PINNED_INTERVAL) || (sd->balance_interval < sd->max_interval)) sd->balance_interval *= 2; - - ld_moved = 0; out: return ld_moved; } diff --git a/mm/ksm.c b/mm/ksm.c index 614b2cce9ad7..d6c81a5076a7 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -710,13 +710,13 @@ static int remove_stable_node(struct stable_node *stable_node) return 0; }

- if (WARN_ON_ONCE(page_mapped(page))) { - /* - * This should not happen: but if it does, just refuse to let - * merge_across_nodes be switched - there is no need to panic. - */ - err = -EBUSY; - } else { + /* + * Page could be still mapped if this races with __mmput() running in + * between ksm_exit() and exit_mmap(). Just refuse to let + * merge_across_nodes/max_page_sharing be switched. + */ + err = -EBUSY; + if (!page_mapped(page)) { /* * The stable node did not yet appear stale to get_ksm_page(), * since that allows for an unmapped ksm page to be recognized diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index b4c8d7b9ab82..449999657c0b 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1340,7 +1340,12 @@ static int online_memory_block(struct memory_block *mem, void *arg) return memory_block_change_state(mem, MEM_ONLINE, MEM_OFFLINE); }

-/* we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG */ +/* + * NOTE: The caller must call lock_device_hotplug() to serialize hotplug + * and online/offline operations (triggered e.g. by sysfs). + * + * we are OK calling __meminit stuff here - we have CONFIG_MEMORY_HOTPLUG + */ int __ref add_memory_resource(int nid, struct resource *res, bool online) { u64 start, size; @@ -1418,9 +1423,9 @@ int __ref add_memory_resource(int nid, struct resource *res, bool online) mem_hotplug_done(); return ret; } -EXPORT_SYMBOL_GPL(add_memory_resource);

-int __ref add_memory(int nid, u64 start, u64 size) +/* requires device_hotplug_lock, see add_memory_resource() */ +int __ref __add_memory(int nid, u64 start, u64 size) { struct resource *res; int ret; @@ -1434,6 +1439,17 @@ int __ref add_memory(int nid, u64 start, u64 size) release_memory_resource(res); return ret; } + +int add_memory(int nid, u64 start, u64 size) +{ + int rc; + + lock_device_hotplug(); + rc = __add_memory(nid, start, size); + unlock_device_hotplug(); + + return rc; +} EXPORT_SYMBOL_GPL(add_memory);

#ifdef CONFIG_MEMORY_HOTREMOVE diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 281a46aeae61..f6a376a51099 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2141,6 +2141,13 @@ EXPORT_SYMBOL(tag_pages_for_writeback); * not miss some pages (e.g., because some other process has cleared TOWRITE * tag we set). The rule we follow is that TOWRITE tag can be cleared only * by the process clearing the DIRTY tag (and submitting the page for IO). + * + * To avoid deadlocks between range_cyclic writeback and callers that hold + * pages in PageWriteback to aggregate IO until write_cache_pages() returns, + * we do not loop back to the start of the file. Doing so causes a page + * lock/page writeback access order inversion - we should only ever lock + * multiple pages in ascending page->index order, and looping back to the start + * of the file violates that rule and causes deadlocks. */ int write_cache_pages(struct address_space *mapping, struct writeback_control *wbc, writepage_t writepage, @@ -2155,7 +2162,6 @@ int write_cache_pages(struct address_space *mapping, pgoff_t index; pgoff_t end; /* Inclusive */ pgoff_t done_index; - int cycled; int range_whole = 0; int tag;

@@ -2163,23 +2169,17 @@ int write_cache_pages(struct address_space *mapping, if (wbc->range_cyclic) { writeback_index = mapping->writeback_index; /* prev offset */ index = writeback_index; - if (index == 0) - cycled = 1; - else - cycled = 0; end = -1; } else { index = wbc->range_start >> PAGE_SHIFT; end = wbc->range_end >> PAGE_SHIFT; if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) range_whole = 1; - cycled = 1; /* ignore range_cyclic tests */ } if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages) tag = PAGECACHE_TAG_TOWRITE; else tag = PAGECACHE_TAG_DIRTY; -retry: if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages) tag_pages_for_writeback(mapping, index, end); done_index = index; @@ -2287,17 +2287,14 @@ int write_cache_pages(struct address_space *mapping, pagevec_release(&pvec); cond_resched(); } - if (!cycled && !done) { - /* - * range_cyclic: - * We hit the last page and there is more work to be done: wrap - * back to the start of the file - */ - cycled = 1; - index = 0; - end = writeback_index - 1; - goto retry; - } + + /* + * If we hit the last page and there is more work to be done: wrap + * back the index back to the start of the file for the next + * time we are called. + */ + if (wbc->range_cyclic && !done) + done_index = 0; if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0)) mapping->writeback_index = done_index;

diff --git a/net/core/dev.c b/net/core/dev.c index 547b4daae5ca..c6fb7e61cb40 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2997,7 +2997,7 @@ struct sk_buff *dev_hard_start_xmit(struct sk_buff *first, struct net_device *de }

skb = next; - if (netif_xmit_stopped(txq) && skb) { + if (netif_tx_queue_stopped(txq) && skb) { rc = NETDEV_TX_BUSY; break; } diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index ba724576764e..ead1a32c68f7 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1724,6 +1724,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) if (tb[IFLA_VF_MAC]) { struct ifla_vf_mac *ivm = nla_data(tb[IFLA_VF_MAC]);

+ if (ivm->vf >= INT_MAX) + return -EINVAL; err = -EOPNOTSUPP; if (ops->ndo_set_vf_mac) err = ops->ndo_set_vf_mac(dev, ivm->vf, @@ -1735,6 +1737,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) if (tb[IFLA_VF_VLAN]) { struct ifla_vf_vlan *ivv = nla_data(tb[IFLA_VF_VLAN]);

+ if (ivv->vf >= INT_MAX) + return -EINVAL; err = -EOPNOTSUPP; if (ops->ndo_set_vf_vlan) err = ops->ndo_set_vf_vlan(dev, ivv->vf, ivv->vlan, @@ -1767,6 +1771,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) if (len == 0) return -EINVAL;

+ if (ivvl[0]->vf >= INT_MAX) + return -EINVAL; err = ops->ndo_set_vf_vlan(dev, ivvl[0]->vf, ivvl[0]->vlan, ivvl[0]->qos, ivvl[0]->vlan_proto); if (err < 0) @@ -1777,6 +1783,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) struct ifla_vf_tx_rate *ivt = nla_data(tb[IFLA_VF_TX_RATE]); struct ifla_vf_info ivf;

+ if (ivt->vf >= INT_MAX) + return -EINVAL; err = -EOPNOTSUPP; if (ops->ndo_get_vf_config) err = ops->ndo_get_vf_config(dev, ivt->vf, &ivf); @@ -1795,6 +1803,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) if (tb[IFLA_VF_RATE]) { struct ifla_vf_rate *ivt = nla_data(tb[IFLA_VF_RATE]);

+ if (ivt->vf >= INT_MAX) + return -EINVAL; err = -EOPNOTSUPP; if (ops->ndo_set_vf_rate) err = ops->ndo_set_vf_rate(dev, ivt->vf, @@ -1807,6 +1817,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) if (tb[IFLA_VF_SPOOFCHK]) { struct ifla_vf_spoofchk *ivs = nla_data(tb[IFLA_VF_SPOOFCHK]);

+ if (ivs->vf >= INT_MAX) + return -EINVAL; err = -EOPNOTSUPP; if (ops->ndo_set_vf_spoofchk) err = ops->ndo_set_vf_spoofchk(dev, ivs->vf, @@ -1818,6 +1830,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) if (tb[IFLA_VF_LINK_STATE]) { struct ifla_vf_link_state *ivl = nla_data(tb[IFLA_VF_LINK_STATE]);

+ if (ivl->vf >= INT_MAX) + return -EINVAL; err = -EOPNOTSUPP; if (ops->ndo_set_vf_link_state) err = ops->ndo_set_vf_link_state(dev, ivl->vf, @@ -1831,6 +1845,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb)

err = -EOPNOTSUPP; ivrssq_en = nla_data(tb[IFLA_VF_RSS_QUERY_EN]); + if (ivrssq_en->vf >= INT_MAX) + return -EINVAL; if (ops->ndo_set_vf_rss_query_en) err = ops->ndo_set_vf_rss_query_en(dev, ivrssq_en->vf, ivrssq_en->setting); @@ -1841,6 +1857,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) if (tb[IFLA_VF_TRUST]) { struct ifla_vf_trust *ivt = nla_data(tb[IFLA_VF_TRUST]);

+ if (ivt->vf >= INT_MAX) + return -EINVAL; err = -EOPNOTSUPP; if (ops->ndo_set_vf_trust) err = ops->ndo_set_vf_trust(dev, ivt->vf, ivt->setting); @@ -1851,15 +1869,18 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb) if (tb[IFLA_VF_IB_NODE_GUID]) { struct ifla_vf_guid *ivt = nla_data(tb[IFLA_VF_IB_NODE_GUID]);

+ if (ivt->vf >= INT_MAX) + return -EINVAL; if (!ops->ndo_set_vf_guid) return -EOPNOTSUPP; - return handle_vf_guid(dev, ivt, IFLA_VF_IB_NODE_GUID); }

if (tb[IFLA_VF_IB_PORT_GUID]) { struct ifla_vf_guid *ivt = nla_data(tb[IFLA_VF_IB_PORT_GUID]);

+ if (ivt->vf >= INT_MAX) + return -EINVAL; if (!ops->ndo_set_vf_guid) return -EOPNOTSUPP;

diff --git a/net/core/sock.c b/net/core/sock.c index d22493351407..9178c1654375 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -945,10 +945,12 @@ int sock_setsockopt(struct socket *sock, int level, int optname, clear_bit(SOCK_PASSSEC, &sock->flags); break; case SO_MARK: - if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) + if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { ret = -EPERM; - else + } else if (val != sk->sk_mark) { sk->sk_mark = val; + sk_dst_reset(sk); + } break;

case SO_RXQ_OVFL: diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 03a696d3bcd9..4a88c4eb2301 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -116,6 +116,7 @@ static int l2tp_ip_recv(struct sk_buff *skb) unsigned char *ptr, *optr; struct l2tp_session *session; struct l2tp_tunnel *tunnel = NULL; + struct iphdr *iph; int length;

if (!pskb_may_pull(skb, 4)) @@ -174,24 +175,17 @@ static int l2tp_ip_recv(struct sk_buff *skb) goto discard;

tunnel_id = ntohl(*(__be32 *) &skb->data[4]); - tunnel = l2tp_tunnel_find(net, tunnel_id); - if (tunnel) { - sk = tunnel->sock; - sock_hold(sk); - } else { - struct iphdr *iph = (struct iphdr *) skb_network_header(skb); - - read_lock_bh(&l2tp_ip_lock); - sk = __l2tp_ip_bind_lookup(net, iph->daddr, iph->saddr, - inet_iif(skb), tunnel_id); - if (!sk) { - read_unlock_bh(&l2tp_ip_lock); - goto discard; - } + iph = (struct iphdr *)skb_network_header(skb);

- sock_hold(sk); + read_lock_bh(&l2tp_ip_lock); + sk = __l2tp_ip_bind_lookup(net, iph->daddr, iph->saddr, inet_iif(skb), + tunnel_id); + if (!sk) { read_unlock_bh(&l2tp_ip_lock); + goto discard; } + sock_hold(sk); + read_unlock_bh(&l2tp_ip_lock);

if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) goto discard_put; diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 8d412b9b0214..423cb095ad37 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -128,6 +128,7 @@ static int l2tp_ip6_recv(struct sk_buff *skb) unsigned char *ptr, *optr; struct l2tp_session *session; struct l2tp_tunnel *tunnel = NULL; + struct ipv6hdr *iph; int length;

if (!pskb_may_pull(skb, 4)) @@ -187,24 +188,17 @@ static int l2tp_ip6_recv(struct sk_buff *skb) goto discard;

tunnel_id = ntohl(*(__be32 *) &skb->data[4]); - tunnel = l2tp_tunnel_find(net, tunnel_id); - if (tunnel) { - sk = tunnel->sock; - sock_hold(sk); - } else { - struct ipv6hdr *iph = ipv6_hdr(skb); - - read_lock_bh(&l2tp_ip6_lock); - sk = __l2tp_ip6_bind_lookup(net, &iph->daddr, &iph->saddr, - inet6_iif(skb), tunnel_id); - if (!sk) { - read_unlock_bh(&l2tp_ip6_lock); - goto discard; - } + iph = ipv6_hdr(skb);

- sock_hold(sk); + read_lock_bh(&l2tp_ip6_lock); + sk = __l2tp_ip6_bind_lookup(net, &iph->daddr, &iph->saddr, + inet6_iif(skb), tunnel_id); + if (!sk) { read_unlock_bh(&l2tp_ip6_lock); + goto discard; } + sock_hold(sk); + read_unlock_bh(&l2tp_ip6_lock);

if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) goto discard_put; diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index cf9b2fe8eac6..9bebf4dc1c8e 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -54,13 +54,14 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla, if (tb[TCA_PEDIT_PARMS] == NULL) return -EINVAL; parm = nla_data(tb[TCA_PEDIT_PARMS]); + if (!parm->nkeys) + return -EINVAL; + ksize = parm->nkeys * sizeof(struct tc_pedit_key); if (nla_len(tb[TCA_PEDIT_PARMS]) < sizeof(*parm) + ksize) return -EINVAL;

if (!tcf_hash_check(tn, parm->index, a, bind)) { - if (!parm->nkeys) - return -EINVAL; ret = tcf_hash_create(tn, parm->index, est, a, &act_pedit_ops, bind, false); if (ret) diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c index 1d74d653e6c0..ad0dcb69395d 100644 --- a/net/sunrpc/auth_gss/gss_krb5_seal.c +++ b/net/sunrpc/auth_gss/gss_krb5_seal.c @@ -63,6 +63,7 @@ #include <linux/sunrpc/gss_krb5.h> #include <linux/random.h> #include <linux/crypto.h> +#include <linux/atomic.h>

#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) # define RPCDBG_FACILITY RPCDBG_AUTH diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 280fb3178708..f3f05148922a 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -124,7 +124,7 @@ static struct ctl_table xs_tunables_table[] = { .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &xprt_min_resvport_limit, - .extra2 = &xprt_max_resvport + .extra2 = &xprt_max_resvport_limit }, { .procname = "max_resvport", @@ -132,7 +132,7 @@ static struct ctl_table xs_tunables_table[] = { .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, - .extra1 = &xprt_min_resvport, + .extra1 = &xprt_min_resvport_limit, .extra2 = &xprt_max_resvport_limit }, { @@ -1737,11 +1737,17 @@ static void xs_udp_timer(struct rpc_xprt *xprt, struct rpc_task *task) xprt_adjust_cwnd(xprt, task, -ETIMEDOUT); }

-static unsigned short xs_get_random_port(void) +static int xs_get_random_port(void) { - unsigned short range = xprt_max_resvport - xprt_min_resvport + 1; - unsigned short rand = (unsigned short) prandom_u32() % range; - return rand + xprt_min_resvport; + unsigned short min = xprt_min_resvport, max = xprt_max_resvport; + unsigned short range; + unsigned short rand; + + if (max < min) + return -EADDRINUSE; + range = max - min + 1; + rand = (unsigned short) prandom_u32() % range; + return rand + min; }

/** @@ -1798,9 +1804,9 @@ static void xs_set_srcport(struct sock_xprt *transport, struct socket *sock) transport->srcport = xs_sock_getport(sock); }

-static unsigned short xs_get_srcport(struct sock_xprt *transport) +static int xs_get_srcport(struct sock_xprt *transport) { - unsigned short port = transport->srcport; + int port = transport->srcport;

if (port == 0 && transport->xprt.resvport) port = xs_get_random_port(); @@ -1821,7 +1827,7 @@ static int xs_bind(struct sock_xprt *transport, struct socket *sock) { struct sockaddr_storage myaddr; int err, nloop = 0; - unsigned short port = xs_get_srcport(transport); + int port = xs_get_srcport(transport); unsigned short last;

/* @@ -1839,8 +1845,8 @@ static int xs_bind(struct sock_xprt *transport, struct socket *sock) * transport->xprt.resvport == 1) xs_get_srcport above will * ensure that port is non-zero and we will bind as needed. */ - if (port == 0) - return 0; + if (port <= 0) + return port;

memcpy(&myaddr, &transport->srcaddr, transport->xprt.addrlen); do { @@ -3223,12 +3229,8 @@ static int param_set_uint_minmax(const char *val,

static int param_set_portnr(const char *val, const struct kernel_param *kp) { - if (kp->arg == &xprt_min_resvport) - return param_set_uint_minmax(val, kp, - RPC_MIN_RESVPORT, - xprt_max_resvport); return param_set_uint_minmax(val, kp, - xprt_min_resvport, + RPC_MIN_RESVPORT, RPC_MAX_RESVPORT); }

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index cecf51a5aec4..32ae82a5596d 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -224,6 +224,8 @@ static inline void unix_release_addr(struct unix_address *addr)

static int unix_mkname(struct sockaddr_un *sunaddr, int len, unsigned int *hashp) { + *hashp = 0; + if (len <= sizeof(short) || len > sizeof(*sunaddr)) return -EINVAL; if (!sunaddr || sunaddr->sun_family != AF_UNIX) diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c index 48d6dca471c6..6c8daf5b391f 100644 --- a/sound/firewire/isight.c +++ b/sound/firewire/isight.c @@ -639,7 +639,7 @@ static int isight_probe(struct fw_unit *unit, if (!isight->audio_base) { dev_err(&unit->device, "audio unit base not found\n"); err = -ENXIO; - goto err_unit; + goto error; } fw_iso_resources_init(&isight->resources, unit);

@@ -668,12 +668,12 @@ static int isight_probe(struct fw_unit *unit, dev_set_drvdata(&unit->device, isight);

return 0; - -err_unit: - fw_unit_put(isight->unit); - mutex_destroy(&isight->mutex); error: snd_card_free(card); + + mutex_destroy(&isight->mutex); + fw_unit_put(isight->unit); + return err; }

diff --git a/sound/i2c/cs8427.c b/sound/i2c/cs8427.c index 7e21621e492a..7fd1b4000883 100644 --- a/sound/i2c/cs8427.c +++ b/sound/i2c/cs8427.c @@ -118,7 +118,7 @@ static int snd_cs8427_send_corudata(struct snd_i2c_device *device, struct cs8427 *chip = device->private_data; char *hw_data = udata ? chip->playback.hw_udata : chip->playback.hw_status; - char data[32]; + unsigned char data[32]; int err, idx;

if (!memcmp(hw_data, ndata, count)) diff --git a/sound/soc/tegra/tegra_sgtl5000.c b/sound/soc/tegra/tegra_sgtl5000.c index 1e76869dd488..863e04809a6b 100644 --- a/sound/soc/tegra/tegra_sgtl5000.c +++ b/sound/soc/tegra/tegra_sgtl5000.c @@ -152,14 +152,14 @@ static int tegra_sgtl5000_driver_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Property 'nvidia,i2s-controller' missing/invalid\n"); ret = -EINVAL; - goto err; + goto err_put_codec_of_node; }

tegra_sgtl5000_dai.platform_of_node = tegra_sgtl5000_dai.cpu_of_node;

ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev); if (ret) - goto err; + goto err_put_cpu_of_node;

ret = snd_soc_register_card(card); if (ret) { @@ -172,6 +172,13 @@ static int tegra_sgtl5000_driver_probe(struct platform_device *pdev)

err_fini_utils: tegra_asoc_utils_fini(&machine->util_data); +err_put_cpu_of_node: + of_node_put(tegra_sgtl5000_dai.cpu_of_node); + tegra_sgtl5000_dai.cpu_of_node = NULL; + tegra_sgtl5000_dai.platform_of_node = NULL; +err_put_codec_of_node: + of_node_put(tegra_sgtl5000_dai.codec_of_node); + tegra_sgtl5000_dai.codec_of_node = NULL; err: return ret; } @@ -186,6 +193,12 @@ static int tegra_sgtl5000_driver_remove(struct platform_device *pdev)

tegra_asoc_utils_fini(&machine->util_data);

+ of_node_put(tegra_sgtl5000_dai.cpu_of_node); + tegra_sgtl5000_dai.cpu_of_node = NULL; + tegra_sgtl5000_dai.platform_of_node = NULL; + of_node_put(tegra_sgtl5000_dai.codec_of_node); + tegra_sgtl5000_dai.codec_of_node = NULL; + return ret; }

diff --git a/tools/gpio/Build b/tools/gpio/Build index 620c1937d957..4141f35837db 100644 --- a/tools/gpio/Build +++ b/tools/gpio/Build @@ -1,3 +1,4 @@ +gpio-utils-y += gpio-utils.o lsgpio-y += lsgpio.o gpio-utils.o gpio-hammer-y += gpio-hammer.o gpio-utils.o gpio-event-mon-y += gpio-event-mon.o gpio-utils.o diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile index 250a891e6ef0..359dd5d11c81 100644 --- a/tools/gpio/Makefile +++ b/tools/gpio/Makefile @@ -32,11 +32,15 @@ $(OUTPUT)include/linux/gpio.h: ../../include/uapi/linux/gpio.h

prepare: $(OUTPUT)include/linux/gpio.h

+GPIO_UTILS_IN := $(output)gpio-utils-in.o +$(GPIO_UTILS_IN): prepare FORCE + $(Q)$(MAKE) $(build)=gpio-utils + # # lsgpio # LSGPIO_IN := $(OUTPUT)lsgpio-in.o -$(LSGPIO_IN): prepare FORCE +$(LSGPIO_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o $(Q)$(MAKE) $(build)=lsgpio $(OUTPUT)lsgpio: $(LSGPIO_IN) $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ @@ -45,7 +49,7 @@ $(OUTPUT)lsgpio: $(LSGPIO_IN) # gpio-hammer # GPIO_HAMMER_IN := $(OUTPUT)gpio-hammer-in.o -$(GPIO_HAMMER_IN): prepare FORCE +$(GPIO_HAMMER_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o $(Q)$(MAKE) $(build)=gpio-hammer $(OUTPUT)gpio-hammer: $(GPIO_HAMMER_IN) $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ @@ -54,7 +58,7 @@ $(OUTPUT)gpio-hammer: $(GPIO_HAMMER_IN) # gpio-event-mon # GPIO_EVENT_MON_IN := $(OUTPUT)gpio-event-mon-in.o -$(GPIO_EVENT_MON_IN): prepare FORCE +$(GPIO_EVENT_MON_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o $(Q)$(MAKE) $(build)=gpio-event-mon $(OUTPUT)gpio-event-mon: $(GPIO_EVENT_MON_IN) $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ diff --git a/tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk b/tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk index a3d2c62fd805..0a3ad5dd1e8b 100644 --- a/tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk +++ b/tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk @@ -68,7 +68,7 @@ BEGIN {

lprefix1_expr = "\((66|!F3)\)" lprefix2_expr = "\(F3\)" - lprefix3_expr = "\((F2|!F3|66\&F2)\)" + lprefix3_expr = "\((F2|!F3|66&F2)\)" lprefix_expr = "\((66|F2|F3)\)" max_lprefix = 4

@@ -256,7 +256,7 @@ function convert_operands(count,opnd, i,j,imm,mod) return add_flags(imm, mod) }

-/^[0-9a-f]+:/ { +/^[0-9a-f]+:/ { if (NR == 1) next # get index diff --git a/tools/power/acpi/tools/acpidump/apmain.c b/tools/power/acpi/tools/acpidump/apmain.c index 7ff46be908f0..d426fec3b1d3 100644 --- a/tools/power/acpi/tools/acpidump/apmain.c +++ b/tools/power/acpi/tools/acpidump/apmain.c @@ -139,7 +139,7 @@ static int ap_insert_action(char *argument, u32 to_be_done)

current_action++; if (current_action > AP_MAX_ACTIONS) { - fprintf(stderr, "Too many table options (max %u)\n", + fprintf(stderr, "Too many table options (max %d)\n", AP_MAX_ACTIONS); return (-1); } diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc index 231bcd2c4eb5..1e7ac6f3362f 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc @@ -71,8 +71,11 @@ test_badarg "$stackp" "$stack0+10" "$stack1-10" echo "r ${PROBEFUNC} $retval" > kprobe_events ! echo "p ${PROBEFUNC} $retval" > kprobe_events

+# $comm was introduced in 4.8, older kernels reject it. +if grep -A1 "fetcharg:" README | grep -q '$comm' ; then : "Comm access" test_goodarg "$comm" +fi

: "Indirect memory access" test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10($stack)" \ diff --git a/tools/usb/usbip/libsrc/usbip_host_common.c b/tools/usb/usbip/libsrc/usbip_host_common.c index 6ff7b601f854..4bb905925b0e 100644 --- a/tools/usb/usbip/libsrc/usbip_host_common.c +++ b/tools/usb/usbip/libsrc/usbip_host_common.c @@ -43,7 +43,7 @@ static int32_t read_attr_usbip_status(struct usbip_usb_device *udev) int size; int fd; int length; - char status; + char status[2] = { 0 }; int value = 0;

size = snprintf(status_attr_path, sizeof(status_attr_path), @@ -61,15 +61,15 @@ static int32_t read_attr_usbip_status(struct usbip_usb_device *udev) return -1; }

- length = read(fd, &status, 1); + length = read(fd, status, 1); if (length < 0) { err("error reading attribute %s", status_attr_path); close(fd); return -1; }

- value = atoi(&status); - + value = atoi(status); + close(fd); return value; }

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 0fc93519e63e..c0dff5337a50 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -131,10 +131,30 @@ __weak void kvm_arch_mmu_notifier_invalidate_range(struct kvm *kvm, { }

+bool kvm_is_zone_device_pfn(kvm_pfn_t pfn) +{ + /* + * The metadata used by is_zone_device_page() to determine whether or + * not a page is ZONE_DEVICE is guaranteed to be valid if and only if + * the device has been pinned, e.g. by get_user_pages(). WARN if the + * page_count() is zero to help detect bad usage of this helper. + */ + if (!pfn_valid(pfn) || WARN_ON_ONCE(!page_count(pfn_to_page(pfn)))) + return false; + + return is_zone_device_page(pfn_to_page(pfn)); +} + bool kvm_is_reserved_pfn(kvm_pfn_t pfn) { + /* + * ZONE_DEVICE pages currently set PG_reserved, but from a refcounting + * perspective they are "normal" pages, albeit with slightly different + * usage rules. + */ if (pfn_valid(pfn)) - return PageReserved(pfn_to_page(pfn)); + return PageReserved(pfn_to_page(pfn)) && + !kvm_is_zone_device_pfn(pfn);

return true; } @@ -1758,7 +1778,7 @@ static void kvm_release_pfn_dirty(kvm_pfn_t pfn)

void kvm_set_pfn_dirty(kvm_pfn_t pfn) { - if (!kvm_is_reserved_pfn(pfn)) { + if (!kvm_is_reserved_pfn(pfn) && !kvm_is_zone_device_pfn(pfn)) { struct page *page = pfn_to_page(pfn);

if (!PageReserved(page)) @@ -1769,7 +1789,7 @@ EXPORT_SYMBOL_GPL(kvm_set_pfn_dirty);

void kvm_set_pfn_accessed(kvm_pfn_t pfn) { - if (!kvm_is_reserved_pfn(pfn)) + if (!kvm_is_reserved_pfn(pfn) && !kvm_is_zone_device_pfn(pfn)) mark_page_accessed(pfn_to_page(pfn)); } EXPORT_SYMBOL_GPL(kvm_set_pfn_accessed);