diff --git a/Makefile b/Makefile index 62524f4d42ad..711b04d00e49 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 4 PATCHLEVEL = 18 -SUBLEVEL = 6 +SUBLEVEL = 7 EXTRAVERSION = NAME = Merciless Moray diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index c210a25dd6da..cff52d8ffdb1 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -530,24 +530,19 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path, SYSCALL_DEFINE1(osf_utsname, char __user *, name) { int error; + char tmp[5 * 32]; down_read(&uts_sem); - error = -EFAULT; - if (copy_to_user(name + 0, utsname()->sysname, 32)) - goto out; - if (copy_to_user(name + 32, utsname()->nodename, 32)) - goto out; - if (copy_to_user(name + 64, utsname()->release, 32)) - goto out; - if (copy_to_user(name + 96, utsname()->version, 32)) - goto out; - if (copy_to_user(name + 128, utsname()->machine, 32)) - goto out; + memcpy(tmp + 0 * 32, utsname()->sysname, 32); + memcpy(tmp + 1 * 32, utsname()->nodename, 32); + memcpy(tmp + 2 * 32, utsname()->release, 32); + memcpy(tmp + 3 * 32, utsname()->version, 32); + memcpy(tmp + 4 * 32, utsname()->machine, 32); + up_read(&uts_sem); - error = 0; - out: - up_read(&uts_sem); - return error; + if (copy_to_user(name, tmp, sizeof(tmp))) + return -EFAULT; + return 0; } SYSCALL_DEFINE0(getpagesize) @@ -567,18 +562,21 @@ SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen) { int len, err = 0; char *kname; + char tmp[32]; - if (namelen > 32) + if (namelen < 0 || namelen > 32) namelen = 32; down_read(&uts_sem); kname = utsname()->domainname; len = strnlen(kname, namelen); - if (copy_to_user(name, kname, min(len + 1, namelen))) - err = -EFAULT; + len = min(len + 1, namelen); + memcpy(tmp, kname, len); up_read(&uts_sem); - return err; + if (copy_to_user(name, tmp, len)) + return -EFAULT; + return 0; } /* @@ -739,13 +737,14 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) }; unsigned long offset; const char *res; - long len, err = -EINVAL; + long len; + char tmp[__NEW_UTS_LEN + 1]; offset = command-1; if (offset >= ARRAY_SIZE(sysinfo_table)) { /* Digital UNIX has a few unpublished interfaces here */ printk("sysinfo(%d)", command); - goto out; + return -EINVAL; } down_read(&uts_sem); @@ -753,13 +752,11 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) len = strlen(res)+1; if ((unsigned long)len > (unsigned long)count) len = count; - if (copy_to_user(buf, res, len)) - err = -EFAULT; - else - err = 0; + memcpy(tmp, res, len); up_read(&uts_sem); - out: - return err; + if (copy_to_user(buf, tmp, len)) + return -EFAULT; + return 0; } SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, diff --git a/arch/arm/boot/dts/am571x-idk.dts b/arch/arm/boot/dts/am571x-idk.dts index 5bb9d68d6e90..d9a2049a1ea8 100644 --- a/arch/arm/boot/dts/am571x-idk.dts +++ b/arch/arm/boot/dts/am571x-idk.dts @@ -66,10 +66,6 @@ }; }; -&omap_dwc3_2 { - extcon = <&extcon_usb2>; -}; - &extcon_usb2 { id-gpio = <&gpio5 7 GPIO_ACTIVE_HIGH>; vbus-gpio = <&gpio7 22 GPIO_ACTIVE_HIGH>; diff --git a/arch/arm/boot/dts/am572x-idk-common.dtsi b/arch/arm/boot/dts/am572x-idk-common.dtsi index c6d858b31011..784639ddf451 100644 --- a/arch/arm/boot/dts/am572x-idk-common.dtsi +++ b/arch/arm/boot/dts/am572x-idk-common.dtsi @@ -57,10 +57,6 @@ }; }; -&omap_dwc3_2 { - extcon = <&extcon_usb2>; -}; - &extcon_usb2 { id-gpio = <&gpio3 16 GPIO_ACTIVE_HIGH>; vbus-gpio = <&gpio3 26 GPIO_ACTIVE_HIGH>; diff --git a/arch/arm/boot/dts/am57xx-idk-common.dtsi b/arch/arm/boot/dts/am57xx-idk-common.dtsi index ad87f1ae904d..c9063ffca524 100644 --- a/arch/arm/boot/dts/am57xx-idk-common.dtsi +++ b/arch/arm/boot/dts/am57xx-idk-common.dtsi @@ -395,8 +395,13 @@ dr_mode = "host"; }; +&omap_dwc3_2 { + extcon = <&extcon_usb2>; +}; + &usb2 { - dr_mode = "peripheral"; + extcon = <&extcon_usb2>; + dr_mode = "otg"; }; &mmc1 { diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi index 92a9740c533f..3b1db7b9ec50 100644 --- a/arch/arm/boot/dts/tegra30-cardhu.dtsi +++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi @@ -206,6 +206,7 @@ #address-cells = <1>; #size-cells = <0>; reg = <0x70>; + reset-gpio = <&gpio TEGRA_GPIO(BB, 0) GPIO_ACTIVE_LOW>; }; }; diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 42c090cf0292..3eb034189cf8 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -754,7 +754,6 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK config HOLES_IN_ZONE def_bool y - depends on NUMA source kernel/Kconfig.preempt source kernel/Kconfig.hz diff --git a/arch/arm64/crypto/sm4-ce-glue.c b/arch/arm64/crypto/sm4-ce-glue.c index b7fb5274b250..0c4fc223f225 100644 --- a/arch/arm64/crypto/sm4-ce-glue.c +++ b/arch/arm64/crypto/sm4-ce-glue.c @@ -69,5 +69,5 @@ static void __exit sm4_ce_mod_fini(void) crypto_unregister_alg(&sm4_ce_alg); } -module_cpu_feature_match(SM3, sm4_ce_mod_init); +module_cpu_feature_match(SM4, sm4_ce_mod_init); module_exit(sm4_ce_mod_fini); diff --git a/arch/powerpc/include/asm/fadump.h b/arch/powerpc/include/asm/fadump.h index 5a23010af600..1e7a33592e29 100644 --- a/arch/powerpc/include/asm/fadump.h +++ b/arch/powerpc/include/asm/fadump.h @@ -195,9 +195,6 @@ struct fadump_crash_info_header { struct cpumask online_mask; }; -/* Crash memory ranges */ -#define INIT_CRASHMEM_RANGES (INIT_MEMBLOCK_REGIONS + 2) - struct fad_crash_memory_ranges { unsigned long long base; unsigned long long size; diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h index 2160be2e4339..b321c82b3624 100644 --- a/arch/powerpc/include/asm/nohash/pgtable.h +++ b/arch/powerpc/include/asm/nohash/pgtable.h @@ -51,17 +51,14 @@ static inline int pte_present(pte_t pte) #define pte_access_permitted pte_access_permitted static inline bool pte_access_permitted(pte_t pte, bool write) { - unsigned long pteval = pte_val(pte); /* * A read-only access is controlled by _PAGE_USER bit. * We have _PAGE_READ set for WRITE and EXECUTE */ - unsigned long need_pte_bits = _PAGE_PRESENT | _PAGE_USER; - - if (write) - need_pte_bits |= _PAGE_WRITE; + if (!pte_present(pte) || !pte_user(pte) || !pte_read(pte)) + return false; - if ((pteval & need_pte_bits) != need_pte_bits) + if (write && !pte_write(pte)) return false; return true; diff --git a/arch/powerpc/include/asm/pkeys.h b/arch/powerpc/include/asm/pkeys.h index 5ba80cffb505..3312606fda07 100644 --- a/arch/powerpc/include/asm/pkeys.h +++ b/arch/powerpc/include/asm/pkeys.h @@ -94,8 +94,6 @@ static inline bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey) __mm_pkey_is_allocated(mm, pkey)); } -extern void __arch_activate_pkey(int pkey); -extern void __arch_deactivate_pkey(int pkey); /* * Returns a positive, 5-bit key on success, or -1 on failure. * Relies on the mmap_sem to protect against concurrency in mm_pkey_alloc() and @@ -124,11 +122,6 @@ static inline int mm_pkey_alloc(struct mm_struct *mm) ret = ffz((u32)mm_pkey_allocation_map(mm)); __mm_pkey_allocated(mm, ret); - /* - * Enable the key in the hardware - */ - if (ret > 0) - __arch_activate_pkey(ret); return ret; } @@ -140,10 +133,6 @@ static inline int mm_pkey_free(struct mm_struct *mm, int pkey) if (!mm_pkey_is_allocated(mm, pkey)) return -EINVAL; - /* - * Disable the key in the hardware - */ - __arch_deactivate_pkey(pkey); __mm_pkey_free(mm, pkey); return 0; diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 07e8396d472b..958eb5cd2a9e 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -47,8 +47,10 @@ static struct fadump_mem_struct fdm; static const struct fadump_mem_struct *fdm_active; static DEFINE_MUTEX(fadump_mutex); -struct fad_crash_memory_ranges crash_memory_ranges[INIT_CRASHMEM_RANGES]; +struct fad_crash_memory_ranges *crash_memory_ranges; +int crash_memory_ranges_size; int crash_mem_ranges; +int max_crash_mem_ranges; /* Scan the Firmware Assisted dump configuration details. */ int __init early_init_dt_scan_fw_dump(unsigned long node, @@ -868,38 +870,88 @@ static int __init process_fadump(const struct fadump_mem_struct *fdm_active) return 0; } -static inline void fadump_add_crash_memory(unsigned long long base, - unsigned long long end) +static void free_crash_memory_ranges(void) +{ + kfree(crash_memory_ranges); + crash_memory_ranges = NULL; + crash_memory_ranges_size = 0; + max_crash_mem_ranges = 0; +} + +/* + * Allocate or reallocate crash memory ranges array in incremental units + * of PAGE_SIZE. + */ +static int allocate_crash_memory_ranges(void) +{ + struct fad_crash_memory_ranges *new_array; + u64 new_size; + + new_size = crash_memory_ranges_size + PAGE_SIZE; + pr_debug("Allocating %llu bytes of memory for crash memory ranges\n", + new_size); + + new_array = krealloc(crash_memory_ranges, new_size, GFP_KERNEL); + if (new_array == NULL) { + pr_err("Insufficient memory for setting up crash memory ranges\n"); + free_crash_memory_ranges(); + return -ENOMEM; + } + + crash_memory_ranges = new_array; + crash_memory_ranges_size = new_size; + max_crash_mem_ranges = (new_size / + sizeof(struct fad_crash_memory_ranges)); + return 0; +} + +static inline int fadump_add_crash_memory(unsigned long long base, + unsigned long long end) { if (base == end) - return; + return 0; + + if (crash_mem_ranges == max_crash_mem_ranges) { + int ret; + + ret = allocate_crash_memory_ranges(); + if (ret) + return ret; + } pr_debug("crash_memory_range[%d] [%#016llx-%#016llx], %#llx bytes\n", crash_mem_ranges, base, end - 1, (end - base)); crash_memory_ranges[crash_mem_ranges].base = base; crash_memory_ranges[crash_mem_ranges].size = end - base; crash_mem_ranges++; + return 0; } -static void fadump_exclude_reserved_area(unsigned long long start, +static int fadump_exclude_reserved_area(unsigned long long start, unsigned long long end) { unsigned long long ra_start, ra_end; + int ret = 0; ra_start = fw_dump.reserve_dump_area_start; ra_end = ra_start + fw_dump.reserve_dump_area_size; if ((ra_start < end) && (ra_end > start)) { if ((start < ra_start) && (end > ra_end)) { - fadump_add_crash_memory(start, ra_start); - fadump_add_crash_memory(ra_end, end); + ret = fadump_add_crash_memory(start, ra_start); + if (ret) + return ret; + + ret = fadump_add_crash_memory(ra_end, end); } else if (start < ra_start) { - fadump_add_crash_memory(start, ra_start); + ret = fadump_add_crash_memory(start, ra_start); } else if (ra_end < end) { - fadump_add_crash_memory(ra_end, end); + ret = fadump_add_crash_memory(ra_end, end); } } else - fadump_add_crash_memory(start, end); + ret = fadump_add_crash_memory(start, end); + + return ret; } static int fadump_init_elfcore_header(char *bufp) @@ -939,10 +991,11 @@ static int fadump_init_elfcore_header(char *bufp) * Traverse through memblock structure and setup crash memory ranges. These * ranges will be used create PT_LOAD program headers in elfcore header. */ -static void fadump_setup_crash_memory_ranges(void) +static int fadump_setup_crash_memory_ranges(void) { struct memblock_region *reg; unsigned long long start, end; + int ret; pr_debug("Setup crash memory ranges.\n"); crash_mem_ranges = 0; @@ -953,7 +1006,9 @@ static void fadump_setup_crash_memory_ranges(void) * specified during fadump registration. We need to create a separate * program header for this chunk with the correct offset. */ - fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size); + ret = fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size); + if (ret) + return ret; for_each_memblock(memory, reg) { start = (unsigned long long)reg->base; @@ -973,8 +1028,12 @@ static void fadump_setup_crash_memory_ranges(void) } /* add this range excluding the reserved dump area. */ - fadump_exclude_reserved_area(start, end); + ret = fadump_exclude_reserved_area(start, end); + if (ret) + return ret; } + + return 0; } /* @@ -1097,6 +1156,7 @@ static int register_fadump(void) { unsigned long addr; void *vaddr; + int ret; /* * If no memory is reserved then we can not register for firmware- @@ -1105,7 +1165,9 @@ static int register_fadump(void) if (!fw_dump.reserve_dump_area_size) return -ENODEV; - fadump_setup_crash_memory_ranges(); + ret = fadump_setup_crash_memory_ranges(); + if (ret) + return ret; addr = be64_to_cpu(fdm.rmr_region.destination_address) + be64_to_cpu(fdm.rmr_region.source_len); /* Initialize fadump crash info header. */ @@ -1183,6 +1245,7 @@ void fadump_cleanup(void) } else if (fw_dump.dump_registered) { /* Un-register Firmware-assisted dump if it was registered. */ fadump_unregister_dump(&fdm); + free_crash_memory_ranges(); } } diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 9ef4aea9fffe..991d09774108 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -583,6 +583,7 @@ static void save_all(struct task_struct *tsk) __giveup_spe(tsk); msr_check_and_clear(msr_all_available); + thread_pkey_regs_save(&tsk->thread); } void flush_all_to_thread(struct task_struct *tsk) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index de686b340f4a..a995513573c2 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -46,6 +46,7 @@ #include #include +#include #include #include #include diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c index f3d4b4a0e561..3bb5cec03d1f 100644 --- a/arch/powerpc/mm/mmu_context_book3s64.c +++ b/arch/powerpc/mm/mmu_context_book3s64.c @@ -200,9 +200,9 @@ static void pte_frag_destroy(void *pte_frag) /* drop all the pending references */ count = ((unsigned long)pte_frag & ~PAGE_MASK) >> PTE_FRAG_SIZE_SHIFT; /* We allow PTE_FRAG_NR fragments from a PTE page */ - if (page_ref_sub_and_test(page, PTE_FRAG_NR - count)) { + if (atomic_sub_and_test(PTE_FRAG_NR - count, &page->pt_frag_refcount)) { pgtable_page_dtor(page); - free_unref_page(page); + __free_page(page); } } @@ -215,9 +215,9 @@ static void pmd_frag_destroy(void *pmd_frag) /* drop all the pending references */ count = ((unsigned long)pmd_frag & ~PAGE_MASK) >> PMD_FRAG_SIZE_SHIFT; /* We allow PTE_FRAG_NR fragments from a PTE page */ - if (page_ref_sub_and_test(page, PMD_FRAG_NR - count)) { + if (atomic_sub_and_test(PMD_FRAG_NR - count, &page->pt_frag_refcount)) { pgtable_pmd_page_dtor(page); - free_unref_page(page); + __free_page(page); } } diff --git a/arch/powerpc/mm/mmu_context_iommu.c b/arch/powerpc/mm/mmu_context_iommu.c index a4ca57612558..c9ee9e23845f 100644 --- a/arch/powerpc/mm/mmu_context_iommu.c +++ b/arch/powerpc/mm/mmu_context_iommu.c @@ -129,6 +129,7 @@ long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries, long i, j, ret = 0, locked_entries = 0; unsigned int pageshift; unsigned long flags; + unsigned long cur_ua; struct page *page = NULL; mutex_lock(&mem_list_mutex); @@ -177,7 +178,8 @@ long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries, } for (i = 0; i < entries; ++i) { - if (1 != get_user_pages_fast(ua + (i << PAGE_SHIFT), + cur_ua = ua + (i << PAGE_SHIFT); + if (1 != get_user_pages_fast(cur_ua, 1/* pages */, 1/* iswrite */, &page)) { ret = -EFAULT; for (j = 0; j < i; ++j) @@ -196,7 +198,7 @@ long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries, if (is_migrate_cma_page(page)) { if (mm_iommu_move_page_from_cma(page)) goto populate; - if (1 != get_user_pages_fast(ua + (i << PAGE_SHIFT), + if (1 != get_user_pages_fast(cur_ua, 1/* pages */, 1/* iswrite */, &page)) { ret = -EFAULT; @@ -210,20 +212,21 @@ long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries, } populate: pageshift = PAGE_SHIFT; - if (PageCompound(page)) { + if (mem->pageshift > PAGE_SHIFT && PageCompound(page)) { pte_t *pte; struct page *head = compound_head(page); unsigned int compshift = compound_order(head); + unsigned int pteshift; local_irq_save(flags); /* disables as well */ - pte = find_linux_pte(mm->pgd, ua, NULL, &pageshift); - local_irq_restore(flags); + pte = find_linux_pte(mm->pgd, cur_ua, NULL, &pteshift); /* Double check it is still the same pinned page */ if (pte && pte_page(*pte) == head && - pageshift == compshift) - pageshift = max_t(unsigned int, pageshift, + pteshift == compshift + PAGE_SHIFT) + pageshift = max_t(unsigned int, pteshift, PAGE_SHIFT); + local_irq_restore(flags); } mem->pageshift = min(mem->pageshift, pageshift); mem->hpas[i] = page_to_pfn(page) << PAGE_SHIFT; diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c index 4afbfbb64bfd..78d0b3d5ebad 100644 --- a/arch/powerpc/mm/pgtable-book3s64.c +++ b/arch/powerpc/mm/pgtable-book3s64.c @@ -270,6 +270,8 @@ static pmd_t *__alloc_for_pmdcache(struct mm_struct *mm) return NULL; } + atomic_set(&page->pt_frag_refcount, 1); + ret = page_address(page); /* * if we support only one fragment just return the @@ -285,7 +287,7 @@ static pmd_t *__alloc_for_pmdcache(struct mm_struct *mm) * count. */ if (likely(!mm->context.pmd_frag)) { - set_page_count(page, PMD_FRAG_NR); + atomic_set(&page->pt_frag_refcount, PMD_FRAG_NR); mm->context.pmd_frag = ret + PMD_FRAG_SIZE; } spin_unlock(&mm->page_table_lock); @@ -308,9 +310,10 @@ void pmd_fragment_free(unsigned long *pmd) { struct page *page = virt_to_page(pmd); - if (put_page_testzero(page)) { + BUG_ON(atomic_read(&page->pt_frag_refcount) <= 0); + if (atomic_dec_and_test(&page->pt_frag_refcount)) { pgtable_pmd_page_dtor(page); - free_unref_page(page); + __free_page(page); } } @@ -352,6 +355,7 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel) return NULL; } + atomic_set(&page->pt_frag_refcount, 1); ret = page_address(page); /* @@ -367,7 +371,7 @@ static pte_t *__alloc_for_ptecache(struct mm_struct *mm, int kernel) * count. */ if (likely(!mm->context.pte_frag)) { - set_page_count(page, PTE_FRAG_NR); + atomic_set(&page->pt_frag_refcount, PTE_FRAG_NR); mm->context.pte_frag = ret + PTE_FRAG_SIZE; } spin_unlock(&mm->page_table_lock); @@ -390,10 +394,11 @@ void pte_fragment_free(unsigned long *table, int kernel) { struct page *page = virt_to_page(table); - if (put_page_testzero(page)) { + BUG_ON(atomic_read(&page->pt_frag_refcount) <= 0); + if (atomic_dec_and_test(&page->pt_frag_refcount)) { if (!kernel) pgtable_page_dtor(page); - free_unref_page(page); + __free_page(page); } } diff --git a/arch/powerpc/mm/pkeys.c b/arch/powerpc/mm/pkeys.c index e6f500fabf5e..0e7810ccd1ae 100644 --- a/arch/powerpc/mm/pkeys.c +++ b/arch/powerpc/mm/pkeys.c @@ -15,8 +15,10 @@ bool pkey_execute_disable_supported; int pkeys_total; /* Total pkeys as per device tree */ bool pkeys_devtree_defined; /* pkey property exported by device tree */ u32 initial_allocation_mask; /* Bits set for reserved keys */ -u64 pkey_amr_uamor_mask; /* Bits in AMR/UMOR not to be touched */ +u64 pkey_amr_mask; /* Bits in AMR not to be touched */ u64 pkey_iamr_mask; /* Bits in AMR not to be touched */ +u64 pkey_uamor_mask; /* Bits in UMOR not to be touched */ +int execute_only_key = 2; #define AMR_BITS_PER_PKEY 2 #define AMR_RD_BIT 0x1UL @@ -91,7 +93,7 @@ int pkey_initialize(void) * arch-neutral code. */ pkeys_total = min_t(int, pkeys_total, - (ARCH_VM_PKEY_FLAGS >> VM_PKEY_SHIFT)); + ((ARCH_VM_PKEY_FLAGS >> VM_PKEY_SHIFT)+1)); if (!pkey_mmu_enabled() || radix_enabled() || !pkeys_total) static_branch_enable(&pkey_disabled); @@ -119,20 +121,38 @@ int pkey_initialize(void) #else os_reserved = 0; #endif - initial_allocation_mask = ~0x0; - pkey_amr_uamor_mask = ~0x0ul; + initial_allocation_mask = (0x1 << 0) | (0x1 << 1) | + (0x1 << execute_only_key); + + /* register mask is in BE format */ + pkey_amr_mask = ~0x0ul; + pkey_amr_mask &= ~(0x3ul << pkeyshift(0)); + pkey_iamr_mask = ~0x0ul; - /* - * key 0, 1 are reserved. - * key 0 is the default key, which allows read/write/execute. - * key 1 is recommended not to be used. PowerISA(3.0) page 1015, - * programming note. - */ - for (i = 2; i < (pkeys_total - os_reserved); i++) { - initial_allocation_mask &= ~(0x1 << i); - pkey_amr_uamor_mask &= ~(0x3ul << pkeyshift(i)); - pkey_iamr_mask &= ~(0x1ul << pkeyshift(i)); + pkey_iamr_mask &= ~(0x3ul << pkeyshift(0)); + pkey_iamr_mask &= ~(0x3ul << pkeyshift(execute_only_key)); + + pkey_uamor_mask = ~0x0ul; + pkey_uamor_mask &= ~(0x3ul << pkeyshift(0)); + pkey_uamor_mask &= ~(0x3ul << pkeyshift(execute_only_key)); + + /* mark the rest of the keys as reserved and hence unavailable */ + for (i = (pkeys_total - os_reserved); i < pkeys_total; i++) { + initial_allocation_mask |= (0x1 << i); + pkey_uamor_mask &= ~(0x3ul << pkeyshift(i)); + } + + if (unlikely((pkeys_total - os_reserved) <= execute_only_key)) { + /* + * Insufficient number of keys to support + * execute only key. Mark it unavailable. + * Any AMR, UAMOR, IAMR bit set for + * this key is irrelevant since this key + * can never be allocated. + */ + execute_only_key = -1; } + return 0; } @@ -143,8 +163,7 @@ void pkey_mm_init(struct mm_struct *mm) if (static_branch_likely(&pkey_disabled)) return; mm_pkey_allocation_map(mm) = initial_allocation_mask; - /* -1 means unallocated or invalid */ - mm->context.execute_only_pkey = -1; + mm->context.execute_only_pkey = execute_only_key; } static inline u64 read_amr(void) @@ -213,33 +232,6 @@ static inline void init_iamr(int pkey, u8 init_bits) write_iamr(old_iamr | new_iamr_bits); } -static void pkey_status_change(int pkey, bool enable) -{ - u64 old_uamor; - - /* Reset the AMR and IAMR bits for this key */ - init_amr(pkey, 0x0); - init_iamr(pkey, 0x0); - - /* Enable/disable key */ - old_uamor = read_uamor(); - if (enable) - old_uamor |= (0x3ul << pkeyshift(pkey)); - else - old_uamor &= ~(0x3ul << pkeyshift(pkey)); - write_uamor(old_uamor); -} - -void __arch_activate_pkey(int pkey) -{ - pkey_status_change(pkey, true); -} - -void __arch_deactivate_pkey(int pkey) -{ - pkey_status_change(pkey, false); -} - /* * Set the access rights in AMR IAMR and UAMOR registers for @pkey to that * specified in @init_val. @@ -289,9 +281,6 @@ void thread_pkey_regs_restore(struct thread_struct *new_thread, if (static_branch_likely(&pkey_disabled)) return; - /* - * TODO: Just set UAMOR to zero if @new_thread hasn't used any keys yet. - */ if (old_thread->amr != new_thread->amr) write_amr(new_thread->amr); if (old_thread->iamr != new_thread->iamr) @@ -305,9 +294,13 @@ void thread_pkey_regs_init(struct thread_struct *thread) if (static_branch_likely(&pkey_disabled)) return; - thread->amr = read_amr() & pkey_amr_uamor_mask; - thread->iamr = read_iamr() & pkey_iamr_mask; - thread->uamor = read_uamor() & pkey_amr_uamor_mask; + thread->amr = pkey_amr_mask; + thread->iamr = pkey_iamr_mask; + thread->uamor = pkey_uamor_mask; + + write_uamor(pkey_uamor_mask); + write_amr(pkey_amr_mask); + write_iamr(pkey_iamr_mask); } static inline bool pkey_allows_readwrite(int pkey) @@ -322,48 +315,7 @@ static inline bool pkey_allows_readwrite(int pkey) int __execute_only_pkey(struct mm_struct *mm) { - bool need_to_set_mm_pkey = false; - int execute_only_pkey = mm->context.execute_only_pkey; - int ret; - - /* Do we need to assign a pkey for mm's execute-only maps? */ - if (execute_only_pkey == -1) { - /* Go allocate one to use, which might fail */ - execute_only_pkey = mm_pkey_alloc(mm); - if (execute_only_pkey < 0) - return -1; - need_to_set_mm_pkey = true; - } - - /* - * We do not want to go through the relatively costly dance to set AMR - * if we do not need to. Check it first and assume that if the - * execute-only pkey is readwrite-disabled than we do not have to set it - * ourselves. - */ - if (!need_to_set_mm_pkey && !pkey_allows_readwrite(execute_only_pkey)) - return execute_only_pkey; - - /* - * Set up AMR so that it denies access for everything other than - * execution. - */ - ret = __arch_set_user_pkey_access(current, execute_only_pkey, - PKEY_DISABLE_ACCESS | - PKEY_DISABLE_WRITE); - /* - * If the AMR-set operation failed somehow, just return 0 and - * effectively disable execute-only support. - */ - if (ret) { - mm_pkey_free(mm, execute_only_pkey); - return -1; - } - - /* We got one, store it and use it from here on out */ - if (need_to_set_mm_pkey) - mm->context.execute_only_pkey = execute_only_pkey; - return execute_only_pkey; + return mm->context.execute_only_pkey; } static inline bool vma_is_pkey_exec_only(struct vm_area_struct *vma) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 70b2e1e0f23c..a2cdf358a3ac 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -3368,12 +3368,49 @@ static void pnv_pci_ioda_create_dbgfs(void) #endif /* CONFIG_DEBUG_FS */ } +static void pnv_pci_enable_bridge(struct pci_bus *bus) +{ + struct pci_dev *dev = bus->self; + struct pci_bus *child; + + /* Empty bus ? bail */ + if (list_empty(&bus->devices)) + return; + + /* + * If there's a bridge associated with that bus enable it. This works + * around races in the generic code if the enabling is done during + * parallel probing. This can be removed once those races have been + * fixed. + */ + if (dev) { + int rc = pci_enable_device(dev); + if (rc) + pci_err(dev, "Error enabling bridge (%d)\n", rc); + pci_set_master(dev); + } + + /* Perform the same to child busses */ + list_for_each_entry(child, &bus->children, node) + pnv_pci_enable_bridge(child); +} + +static void pnv_pci_enable_bridges(void) +{ + struct pci_controller *hose; + + list_for_each_entry(hose, &hose_list, list_node) + pnv_pci_enable_bridge(hose->bus); +} + static void pnv_pci_ioda_fixup(void) { pnv_pci_ioda_setup_PEs(); pnv_pci_ioda_setup_iommu_api(); pnv_pci_ioda_create_dbgfs(); + pnv_pci_enable_bridges(); + #ifdef CONFIG_EEH pnv_eeh_post_init(); #endif diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 5e1ef9150182..2edc673be137 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -360,7 +360,7 @@ static struct rtas_error_log *fwnmi_get_errinfo(struct pt_regs *regs) } savep = __va(regs->gpr[3]); - regs->gpr[3] = savep[0]; /* restore original r3 */ + regs->gpr[3] = be64_to_cpu(savep[0]); /* restore original r3 */ /* If it isn't an extended log we can use the per cpu 64bit buffer */ h = (struct rtas_error_log *)&savep[1]; diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c index 7f3d9c59719a..452e4d080855 100644 --- a/arch/sparc/kernel/sys_sparc_32.c +++ b/arch/sparc/kernel/sys_sparc_32.c @@ -197,23 +197,27 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len) { - int nlen, err; - + int nlen, err; + char tmp[__NEW_UTS_LEN + 1]; + if (len < 0) return -EINVAL; - down_read(&uts_sem); - + down_read(&uts_sem); + nlen = strlen(utsname()->domainname) + 1; err = -EINVAL; if (nlen > len) - goto out; + goto out_unlock; + memcpy(tmp, utsname()->domainname, nlen); - err = -EFAULT; - if (!copy_to_user(name, utsname()->domainname, nlen)) - err = 0; + up_read(&uts_sem); -out: + if (copy_to_user(name, tmp, nlen)) + return -EFAULT; + return 0; + +out_unlock: up_read(&uts_sem); return err; } diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 63baa8aa9414..274ed0b9b3e0 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -519,23 +519,27 @@ asmlinkage void sparc_breakpoint(struct pt_regs *regs) SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len) { - int nlen, err; + int nlen, err; + char tmp[__NEW_UTS_LEN + 1]; if (len < 0) return -EINVAL; - down_read(&uts_sem); - + down_read(&uts_sem); + nlen = strlen(utsname()->domainname) + 1; err = -EINVAL; if (nlen > len) - goto out; + goto out_unlock; + memcpy(tmp, utsname()->domainname, nlen); + + up_read(&uts_sem); - err = -EFAULT; - if (!copy_to_user(name, utsname()->domainname, nlen)) - err = 0; + if (copy_to_user(name, tmp, nlen)) + return -EFAULT; + return 0; -out: +out_unlock: up_read(&uts_sem); return err; } diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S index e762ef417562..d27a50656aa1 100644 --- a/arch/x86/crypto/aesni-intel_asm.S +++ b/arch/x86/crypto/aesni-intel_asm.S @@ -223,34 +223,34 @@ ALL_F: .octa 0xffffffffffffffffffffffffffffffff pcmpeqd TWOONE(%rip), \TMP2 pand POLY(%rip), \TMP2 pxor \TMP2, \TMP3 - movdqa \TMP3, HashKey(%arg2) + movdqu \TMP3, HashKey(%arg2) movdqa \TMP3, \TMP5 pshufd $78, \TMP3, \TMP1 pxor \TMP3, \TMP1 - movdqa \TMP1, HashKey_k(%arg2) + movdqu \TMP1, HashKey_k(%arg2) GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 # TMP5 = HashKey^2<<1 (mod poly) - movdqa \TMP5, HashKey_2(%arg2) + movdqu \TMP5, HashKey_2(%arg2) # HashKey_2 = HashKey^2<<1 (mod poly) pshufd $78, \TMP5, \TMP1 pxor \TMP5, \TMP1 - movdqa \TMP1, HashKey_2_k(%arg2) + movdqu \TMP1, HashKey_2_k(%arg2) GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 # TMP5 = HashKey^3<<1 (mod poly) - movdqa \TMP5, HashKey_3(%arg2) + movdqu \TMP5, HashKey_3(%arg2) pshufd $78, \TMP5, \TMP1 pxor \TMP5, \TMP1 - movdqa \TMP1, HashKey_3_k(%arg2) + movdqu \TMP1, HashKey_3_k(%arg2) GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7 # TMP5 = HashKey^3<<1 (mod poly) - movdqa \TMP5, HashKey_4(%arg2) + movdqu \TMP5, HashKey_4(%arg2) pshufd $78, \TMP5, \TMP1 pxor \TMP5, \TMP1 - movdqa \TMP1, HashKey_4_k(%arg2) + movdqu \TMP1, HashKey_4_k(%arg2) .endm # GCM_INIT initializes a gcm_context struct to prepare for encoding/decoding. @@ -271,7 +271,7 @@ ALL_F: .octa 0xffffffffffffffffffffffffffffffff movdqu %xmm0, CurCount(%arg2) # ctx_data.current_counter = iv PRECOMPUTE \SUBKEY, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, - movdqa HashKey(%arg2), %xmm13 + movdqu HashKey(%arg2), %xmm13 CALC_AAD_HASH %xmm13, \AAD, \AADLEN, %xmm0, %xmm1, %xmm2, %xmm3, \ %xmm4, %xmm5, %xmm6 @@ -997,7 +997,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation pshufd $78, \XMM5, \TMP6 pxor \XMM5, \TMP6 paddd ONE(%rip), \XMM0 # INCR CNT - movdqa HashKey_4(%arg2), \TMP5 + movdqu HashKey_4(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1 movdqa \XMM0, \XMM1 paddd ONE(%rip), \XMM0 # INCR CNT @@ -1016,7 +1016,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation pxor (%arg1), \XMM2 pxor (%arg1), \XMM3 pxor (%arg1), \XMM4 - movdqa HashKey_4_k(%arg2), \TMP5 + movdqu HashKey_4_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0) movaps 0x10(%arg1), \TMP1 AESENC \TMP1, \XMM1 # Round 1 @@ -1031,7 +1031,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM6, \TMP1 pshufd $78, \XMM6, \TMP2 pxor \XMM6, \TMP2 - movdqa HashKey_3(%arg2), \TMP5 + movdqu HashKey_3(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1 movaps 0x30(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 3 @@ -1044,7 +1044,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation AESENC \TMP3, \XMM2 AESENC \TMP3, \XMM3 AESENC \TMP3, \XMM4 - movdqa HashKey_3_k(%arg2), \TMP5 + movdqu HashKey_3_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movaps 0x50(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 5 @@ -1058,7 +1058,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM7, \TMP1 pshufd $78, \XMM7, \TMP2 pxor \XMM7, \TMP2 - movdqa HashKey_2(%arg2), \TMP5 + movdqu HashKey_2(%arg2), \TMP5 # Multiply TMP5 * HashKey using karatsuba @@ -1074,7 +1074,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation AESENC \TMP3, \XMM2 AESENC \TMP3, \XMM3 AESENC \TMP3, \XMM4 - movdqa HashKey_2_k(%arg2), \TMP5 + movdqu HashKey_2_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movaps 0x80(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 8 @@ -1092,7 +1092,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM8, \TMP1 pshufd $78, \XMM8, \TMP2 pxor \XMM8, \TMP2 - movdqa HashKey(%arg2), \TMP5 + movdqu HashKey(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 movaps 0x90(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 9 @@ -1121,7 +1121,7 @@ aes_loop_par_enc_done\@: AESENCLAST \TMP3, \XMM2 AESENCLAST \TMP3, \XMM3 AESENCLAST \TMP3, \XMM4 - movdqa HashKey_k(%arg2), \TMP5 + movdqu HashKey_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movdqu (%arg4,%r11,1), \TMP3 pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK @@ -1205,7 +1205,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation pshufd $78, \XMM5, \TMP6 pxor \XMM5, \TMP6 paddd ONE(%rip), \XMM0 # INCR CNT - movdqa HashKey_4(%arg2), \TMP5 + movdqu HashKey_4(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1 movdqa \XMM0, \XMM1 paddd ONE(%rip), \XMM0 # INCR CNT @@ -1224,7 +1224,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation pxor (%arg1), \XMM2 pxor (%arg1), \XMM3 pxor (%arg1), \XMM4 - movdqa HashKey_4_k(%arg2), \TMP5 + movdqu HashKey_4_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0) movaps 0x10(%arg1), \TMP1 AESENC \TMP1, \XMM1 # Round 1 @@ -1239,7 +1239,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM6, \TMP1 pshufd $78, \XMM6, \TMP2 pxor \XMM6, \TMP2 - movdqa HashKey_3(%arg2), \TMP5 + movdqu HashKey_3(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1 movaps 0x30(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 3 @@ -1252,7 +1252,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation AESENC \TMP3, \XMM2 AESENC \TMP3, \XMM3 AESENC \TMP3, \XMM4 - movdqa HashKey_3_k(%arg2), \TMP5 + movdqu HashKey_3_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movaps 0x50(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 5 @@ -1266,7 +1266,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM7, \TMP1 pshufd $78, \XMM7, \TMP2 pxor \XMM7, \TMP2 - movdqa HashKey_2(%arg2), \TMP5 + movdqu HashKey_2(%arg2), \TMP5 # Multiply TMP5 * HashKey using karatsuba @@ -1282,7 +1282,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation AESENC \TMP3, \XMM2 AESENC \TMP3, \XMM3 AESENC \TMP3, \XMM4 - movdqa HashKey_2_k(%arg2), \TMP5 + movdqu HashKey_2_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movaps 0x80(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 8 @@ -1300,7 +1300,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation movdqa \XMM8, \TMP1 pshufd $78, \XMM8, \TMP2 pxor \XMM8, \TMP2 - movdqa HashKey(%arg2), \TMP5 + movdqu HashKey(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 movaps 0x90(%arg1), \TMP3 AESENC \TMP3, \XMM1 # Round 9 @@ -1329,7 +1329,7 @@ aes_loop_par_dec_done\@: AESENCLAST \TMP3, \XMM2 AESENCLAST \TMP3, \XMM3 AESENCLAST \TMP3, \XMM4 - movdqa HashKey_k(%arg2), \TMP5 + movdqu HashKey_k(%arg2), \TMP5 PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movdqu (%arg4,%r11,1), \TMP3 pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK @@ -1405,10 +1405,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst movdqa \XMM1, \TMP6 pshufd $78, \XMM1, \TMP2 pxor \XMM1, \TMP2 - movdqa HashKey_4(%arg2), \TMP5 + movdqu HashKey_4(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP6 # TMP6 = a1*b1 PCLMULQDQ 0x00, \TMP5, \XMM1 # XMM1 = a0*b0 - movdqa HashKey_4_k(%arg2), \TMP4 + movdqu HashKey_4_k(%arg2), \TMP4 PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) movdqa \XMM1, \XMMDst movdqa \TMP2, \XMM1 # result in TMP6, XMMDst, XMM1 @@ -1418,10 +1418,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst movdqa \XMM2, \TMP1 pshufd $78, \XMM2, \TMP2 pxor \XMM2, \TMP2 - movdqa HashKey_3(%arg2), \TMP5 + movdqu HashKey_3(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 PCLMULQDQ 0x00, \TMP5, \XMM2 # XMM2 = a0*b0 - movdqa HashKey_3_k(%arg2), \TMP4 + movdqu HashKey_3_k(%arg2), \TMP4 PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) pxor \TMP1, \TMP6 pxor \XMM2, \XMMDst @@ -1433,10 +1433,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst movdqa \XMM3, \TMP1 pshufd $78, \XMM3, \TMP2 pxor \XMM3, \TMP2 - movdqa HashKey_2(%arg2), \TMP5 + movdqu HashKey_2(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 PCLMULQDQ 0x00, \TMP5, \XMM3 # XMM3 = a0*b0 - movdqa HashKey_2_k(%arg2), \TMP4 + movdqu HashKey_2_k(%arg2), \TMP4 PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) pxor \TMP1, \TMP6 pxor \XMM3, \XMMDst @@ -1446,10 +1446,10 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst movdqa \XMM4, \TMP1 pshufd $78, \XMM4, \TMP2 pxor \XMM4, \TMP2 - movdqa HashKey(%arg2), \TMP5 + movdqu HashKey(%arg2), \TMP5 PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1 PCLMULQDQ 0x00, \TMP5, \XMM4 # XMM4 = a0*b0 - movdqa HashKey_k(%arg2), \TMP4 + movdqu HashKey_k(%arg2), \TMP4 PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0) pxor \TMP1, \TMP6 pxor \XMM4, \XMMDst diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c index 7326078eaa7a..278cd07228dd 100644 --- a/arch/x86/kernel/kexec-bzimage64.c +++ b/arch/x86/kernel/kexec-bzimage64.c @@ -532,7 +532,7 @@ static int bzImage64_cleanup(void *loader_data) static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len) { return verify_pefile_signature(kernel, kernel_len, - NULL, + VERIFY_USE_SECONDARY_KEYRING, VERIFYING_KEXEC_PE_SIGNATURE); } #endif diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 46b428c0990e..bedabcf33a3e 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -197,12 +197,14 @@ static enum vmx_l1d_flush_state __read_mostly vmentry_l1d_flush_param = VMENTER_ static const struct { const char *option; - enum vmx_l1d_flush_state cmd; + bool for_parse; } vmentry_l1d_param[] = { - {"auto", VMENTER_L1D_FLUSH_AUTO}, - {"never", VMENTER_L1D_FLUSH_NEVER}, - {"cond", VMENTER_L1D_FLUSH_COND}, - {"always", VMENTER_L1D_FLUSH_ALWAYS}, + [VMENTER_L1D_FLUSH_AUTO] = {"auto", true}, + [VMENTER_L1D_FLUSH_NEVER] = {"never", true}, + [VMENTER_L1D_FLUSH_COND] = {"cond", true}, + [VMENTER_L1D_FLUSH_ALWAYS] = {"always", true}, + [VMENTER_L1D_FLUSH_EPT_DISABLED] = {"EPT disabled", false}, + [VMENTER_L1D_FLUSH_NOT_REQUIRED] = {"not required", false}, }; #define L1D_CACHE_ORDER 4 @@ -286,8 +288,9 @@ static int vmentry_l1d_flush_parse(const char *s) if (s) { for (i = 0; i < ARRAY_SIZE(vmentry_l1d_param); i++) { - if (sysfs_streq(s, vmentry_l1d_param[i].option)) - return vmentry_l1d_param[i].cmd; + if (vmentry_l1d_param[i].for_parse && + sysfs_streq(s, vmentry_l1d_param[i].option)) + return i; } } return -EINVAL; @@ -297,13 +300,13 @@ static int vmentry_l1d_flush_set(const char *s, const struct kernel_param *kp) { int l1tf, ret; - if (!boot_cpu_has(X86_BUG_L1TF)) - return 0; - l1tf = vmentry_l1d_flush_parse(s); if (l1tf < 0) return l1tf; + if (!boot_cpu_has(X86_BUG_L1TF)) + return 0; + /* * Has vmx_init() run already? If not then this is the pre init * parameter parsing. In that case just store the value and let @@ -323,6 +326,9 @@ static int vmentry_l1d_flush_set(const char *s, const struct kernel_param *kp) static int vmentry_l1d_flush_get(char *s, const struct kernel_param *kp) { + if (WARN_ON_ONCE(l1tf_vmx_mitigation >= ARRAY_SIZE(vmentry_l1d_param))) + return sprintf(s, "???\n"); + return sprintf(s, "%s\n", vmentry_l1d_param[l1tf_vmx_mitigation].option); } diff --git a/arch/xtensa/include/asm/cacheasm.h b/arch/xtensa/include/asm/cacheasm.h index 2041abb10a23..34545ecfdd6b 100644 --- a/arch/xtensa/include/asm/cacheasm.h +++ b/arch/xtensa/include/asm/cacheasm.h @@ -31,16 +31,32 @@ * */ - .macro __loop_cache_all ar at insn size line_width - movi \ar, 0 + .macro __loop_cache_unroll ar at insn size line_width max_immed + + .if (1 << (\line_width)) > (\max_immed) + .set _reps, 1 + .elseif (2 << (\line_width)) > (\max_immed) + .set _reps, 2 + .else + .set _reps, 4 + .endif + + __loopi \ar, \at, \size, (_reps << (\line_width)) + .set _index, 0 + .rep _reps + \insn \ar, _index << (\line_width) + .set _index, _index + 1 + .endr + __endla \ar, \at, _reps << (\line_width) + + .endm + - __loopi \ar, \at, \size, (4 << (\line_width)) - \insn \ar, 0 << (\line_width) - \insn \ar, 1 << (\line_width) - \insn \ar, 2 << (\line_width) - \insn \ar, 3 << (\line_width) - __endla \ar, \at, 4 << (\line_width) + .macro __loop_cache_all ar at insn size line_width max_immed + + movi \ar, 0 + __loop_cache_unroll \ar, \at, \insn, \size, \line_width, \max_immed .endm @@ -57,14 +73,9 @@ .endm - .macro __loop_cache_page ar at insn line_width + .macro __loop_cache_page ar at insn line_width max_immed - __loopi \ar, \at, PAGE_SIZE, 4 << (\line_width) - \insn \ar, 0 << (\line_width) - \insn \ar, 1 << (\line_width) - \insn \ar, 2 << (\line_width) - \insn \ar, 3 << (\line_width) - __endla \ar, \at, 4 << (\line_width) + __loop_cache_unroll \ar, \at, \insn, PAGE_SIZE, \line_width, \max_immed .endm @@ -72,7 +83,8 @@ .macro ___unlock_dcache_all ar at #if XCHAL_DCACHE_LINE_LOCKABLE && XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -81,7 +93,8 @@ .macro ___unlock_icache_all ar at #if XCHAL_ICACHE_LINE_LOCKABLE && XCHAL_ICACHE_SIZE - __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE XCHAL_ICACHE_LINEWIDTH + __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE \ + XCHAL_ICACHE_LINEWIDTH 240 #endif .endm @@ -90,7 +103,8 @@ .macro ___flush_invalidate_dcache_all ar at #if XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -99,7 +113,8 @@ .macro ___flush_dcache_all ar at #if XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -108,8 +123,8 @@ .macro ___invalidate_dcache_all ar at #if XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at dii __stringify(DCACHE_WAY_SIZE) \ - XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at dii XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -118,8 +133,8 @@ .macro ___invalidate_icache_all ar at #if XCHAL_ICACHE_SIZE - __loop_cache_all \ar \at iii __stringify(ICACHE_WAY_SIZE) \ - XCHAL_ICACHE_LINEWIDTH + __loop_cache_all \ar \at iii XCHAL_ICACHE_SIZE \ + XCHAL_ICACHE_LINEWIDTH 1020 #endif .endm @@ -166,7 +181,7 @@ .macro ___flush_invalidate_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -175,7 +190,7 @@ .macro ___flush_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -184,7 +199,7 @@ .macro ___invalidate_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -193,7 +208,7 @@ .macro ___invalidate_icache_page ar as #if XCHAL_ICACHE_SIZE - __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH + __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH 1020 #endif .endm diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c index a9e8633388f4..58c6efa9f9a9 100644 --- a/block/bfq-cgroup.c +++ b/block/bfq-cgroup.c @@ -913,7 +913,8 @@ static ssize_t bfq_io_set_weight(struct kernfs_open_file *of, if (ret) return ret; - return bfq_io_set_weight_legacy(of_css(of), NULL, weight); + ret = bfq_io_set_weight_legacy(of_css(of), NULL, weight); + return ret ?: nbytes; } #ifdef CONFIG_DEBUG_BLK_CGROUP diff --git a/block/blk-core.c b/block/blk-core.c index ee33590f54eb..1646ea85dade 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -715,6 +715,35 @@ void blk_set_queue_dying(struct request_queue *q) } EXPORT_SYMBOL_GPL(blk_set_queue_dying); +/* Unconfigure the I/O scheduler and dissociate from the cgroup controller. */ +void blk_exit_queue(struct request_queue *q) +{ + /* + * Since the I/O scheduler exit code may access cgroup information, + * perform I/O scheduler exit before disassociating from the block + * cgroup controller. + */ + if (q->elevator) { + ioc_clear_queue(q); + elevator_exit(q, q->elevator); + q->elevator = NULL; + } + + /* + * Remove all references to @q from the block cgroup controller before + * restoring @q->queue_lock to avoid that restoring this pointer causes + * e.g. blkcg_print_blkgs() to crash. + */ + blkcg_exit_queue(q); + + /* + * Since the cgroup code may dereference the @q->backing_dev_info + * pointer, only decrease its reference count after having removed the + * association with the block cgroup controller. + */ + bdi_put(q->backing_dev_info); +} + /** * blk_cleanup_queue - shutdown a request queue * @q: request queue to shutdown @@ -780,30 +809,7 @@ void blk_cleanup_queue(struct request_queue *q) */ WARN_ON_ONCE(q->kobj.state_in_sysfs); - /* - * Since the I/O scheduler exit code may access cgroup information, - * perform I/O scheduler exit before disassociating from the block - * cgroup controller. - */ - if (q->elevator) { - ioc_clear_queue(q); - elevator_exit(q, q->elevator); - q->elevator = NULL; - } - - /* - * Remove all references to @q from the block cgroup controller before - * restoring @q->queue_lock to avoid that restoring this pointer causes - * e.g. blkcg_print_blkgs() to crash. - */ - blkcg_exit_queue(q); - - /* - * Since the cgroup code may dereference the @q->backing_dev_info - * pointer, only decrease its reference count after having removed the - * association with the block cgroup controller. - */ - bdi_put(q->backing_dev_info); + blk_exit_queue(q); if (q->mq_ops) blk_mq_free_queue(q); @@ -1180,6 +1186,7 @@ out_exit_flush_rq: q->exit_rq_fn(q, q->fq->flush_rq); out_free_flush_queue: blk_free_flush_queue(q->fq); + q->fq = NULL; return -ENOMEM; } EXPORT_SYMBOL(blk_init_allocated_queue); @@ -3763,9 +3770,11 @@ EXPORT_SYMBOL(blk_finish_plug); */ void blk_pm_runtime_init(struct request_queue *q, struct device *dev) { - /* not support for RQF_PM and ->rpm_status in blk-mq yet */ - if (q->mq_ops) + /* Don't enable runtime PM for blk-mq until it is ready */ + if (q->mq_ops) { + pm_runtime_disable(dev); return; + } q->dev = dev; q->rpm_status = RPM_ACTIVE; diff --git a/block/blk-lib.c b/block/blk-lib.c index 8faa70f26fcd..d1b9dd03da25 100644 --- a/block/blk-lib.c +++ b/block/blk-lib.c @@ -68,6 +68,8 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, */ req_sects = min_t(sector_t, nr_sects, q->limits.max_discard_sectors); + if (!req_sects) + goto fail; if (req_sects > UINT_MAX >> 9) req_sects = UINT_MAX >> 9; @@ -105,6 +107,14 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector, *biop = bio; return 0; + +fail: + if (bio) { + submit_bio_wait(bio); + bio_put(bio); + } + *biop = NULL; + return -EOPNOTSUPP; } EXPORT_SYMBOL(__blkdev_issue_discard); diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 94987b1f69e1..96c7dfc04852 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -804,6 +804,21 @@ static void __blk_release_queue(struct work_struct *work) blk_stat_remove_callback(q, q->poll_cb); blk_stat_free_callback(q->poll_cb); + if (!blk_queue_dead(q)) { + /* + * Last reference was dropped without having called + * blk_cleanup_queue(). + */ + WARN_ONCE(blk_queue_init_done(q), + "request queue %p has been registered but blk_cleanup_queue() has not been called for that queue\n", + q); + blk_exit_queue(q); + } + + WARN(blkg_root_lookup(q), + "request queue %p is being released but it has not yet been removed from the blkcg controller\n", + q); + blk_free_queue_stats(q->stats); blk_exit_rl(q, &q->root_rl); diff --git a/block/blk.h b/block/blk.h index 8d23aea96ce9..a8f0f7986cfd 100644 --- a/block/blk.h +++ b/block/blk.h @@ -130,6 +130,7 @@ void blk_free_flush_queue(struct blk_flush_queue *q); int blk_init_rl(struct request_list *rl, struct request_queue *q, gfp_t gfp_mask); void blk_exit_rl(struct request_queue *q, struct request_list *rl); +void blk_exit_queue(struct request_queue *q); void blk_rq_bio_prep(struct request_queue *q, struct request *rq, struct bio *bio); void blk_queue_bypass_start(struct request_queue *q); diff --git a/certs/system_keyring.c b/certs/system_keyring.c index 6251d1b27f0c..81728717523d 100644 --- a/certs/system_keyring.c +++ b/certs/system_keyring.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -230,7 +231,7 @@ int verify_pkcs7_signature(const void *data, size_t len, if (!trusted_keys) { trusted_keys = builtin_trusted_keys; - } else if (trusted_keys == (void *)1UL) { + } else if (trusted_keys == VERIFY_USE_SECONDARY_KEYRING) { #ifdef CONFIG_SECONDARY_TRUSTED_KEYRING trusted_keys = secondary_trusted_keys; #else diff --git a/crypto/asymmetric_keys/pkcs7_key_type.c b/crypto/asymmetric_keys/pkcs7_key_type.c index e284d9cb9237..5b2f6a2b5585 100644 --- a/crypto/asymmetric_keys/pkcs7_key_type.c +++ b/crypto/asymmetric_keys/pkcs7_key_type.c @@ -63,7 +63,7 @@ static int pkcs7_preparse(struct key_preparsed_payload *prep) return verify_pkcs7_signature(NULL, 0, prep->data, prep->datalen, - (void *)1UL, usage, + VERIFY_USE_SECONDARY_KEYRING, usage, pkcs7_view_content, prep); } diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index fe9d46d81750..d8b8fc2ff563 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -56,14 +56,9 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state) if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - /* - * If the target sleep state is S5, clear all GPEs and fixed events too - */ - if (sleep_state == ACPI_STATE_S5) { - status = acpi_hw_clear_acpi_status(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } + status = acpi_hw_clear_acpi_status(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } acpi_gbl_system_awake_and_running = FALSE; diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c index 44f35ab3347d..0f0bdc9d24c6 100644 --- a/drivers/acpi/acpica/psloop.c +++ b/drivers/acpi/acpica/psloop.c @@ -22,6 +22,7 @@ #include "acdispat.h" #include "amlcode.h" #include "acconvert.h" +#include "acnamesp.h" #define _COMPONENT ACPI_PARSER ACPI_MODULE_NAME("psloop") @@ -527,12 +528,18 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - if (walk_state->opcode == AML_SCOPE_OP) { + if (acpi_ns_opens_scope + (acpi_ps_get_opcode_info + (walk_state->opcode)->object_type)) { /* - * If the scope op fails to parse, skip the body of the - * scope op because the parse failure indicates that the - * device may not exist. + * If the scope/device op fails to parse, skip the body of + * the scope op because the parse failure indicates that + * the device may not exist. */ + ACPI_ERROR((AE_INFO, + "Skip parsing opcode %s", + acpi_ps_get_opcode_name + (walk_state->opcode))); walk_state->parser_state.aml = walk_state->aml + 1; walk_state->parser_state.aml = @@ -540,8 +547,6 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) (&walk_state->parser_state); walk_state->aml = walk_state->parser_state.aml; - ACPI_ERROR((AE_INFO, - "Skipping Scope block")); } continue; diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index a390c6d4f72d..af7cb8e618fe 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -337,6 +337,7 @@ static ssize_t backing_dev_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { char *file_name; + size_t sz; struct file *backing_dev = NULL; struct inode *inode; struct address_space *mapping; @@ -357,7 +358,11 @@ static ssize_t backing_dev_store(struct device *dev, goto out; } - strlcpy(file_name, buf, len); + strlcpy(file_name, buf, PATH_MAX); + /* ignore trailing newline */ + sz = strlen(file_name); + if (sz > 0 && file_name[sz - 1] == '\n') + file_name[sz - 1] = 0x00; backing_dev = filp_open(file_name, O_RDWR|O_LARGEFILE, 0); if (IS_ERR(backing_dev)) { diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 1d50e97d49f1..6d53f7d9fc7a 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -555,12 +555,20 @@ EXPORT_SYMBOL_GPL(cpufreq_dbs_governor_stop); void cpufreq_dbs_governor_limits(struct cpufreq_policy *policy) { - struct policy_dbs_info *policy_dbs = policy->governor_data; + struct policy_dbs_info *policy_dbs; + + /* Protect gov->gdbs_data against cpufreq_dbs_governor_exit() */ + mutex_lock(&gov_dbs_data_mutex); + policy_dbs = policy->governor_data; + if (!policy_dbs) + goto out; mutex_lock(&policy_dbs->update_mutex); cpufreq_policy_apply_limits(policy); gov_update_sample_delay(policy_dbs, 0); - mutex_unlock(&policy_dbs->update_mutex); + +out: + mutex_unlock(&gov_dbs_data_mutex); } EXPORT_SYMBOL_GPL(cpufreq_dbs_governor_limits); diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 1aef60d160eb..910f8a68f58b 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -349,14 +349,12 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, * If the tick is already stopped, the cost of possible short * idle duration misprediction is much higher, because the CPU * may be stuck in a shallow idle state for a long time as a - * result of it. In that case say we might mispredict and try - * to force the CPU into a state for which we would have stopped - * the tick, unless a timer is going to expire really soon - * anyway. + * result of it. In that case say we might mispredict and use + * the known time till the closest timer event for the idle + * state selection. */ if (data->predicted_us < TICK_USEC) - data->predicted_us = min_t(unsigned int, TICK_USEC, - ktime_to_us(delta_next)); + data->predicted_us = ktime_to_us(delta_next); } else { /* * Use the performance multiplier and the user-configurable @@ -381,8 +379,33 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, continue; if (idx == -1) idx = i; /* first enabled state */ - if (s->target_residency > data->predicted_us) - break; + if (s->target_residency > data->predicted_us) { + if (data->predicted_us < TICK_USEC) + break; + + if (!tick_nohz_tick_stopped()) { + /* + * If the state selected so far is shallow, + * waking up early won't hurt, so retain the + * tick in that case and let the governor run + * again in the next iteration of the loop. + */ + expected_interval = drv->states[idx].target_residency; + break; + } + + /* + * If the state selected so far is shallow and this + * state's target residency matches the time till the + * closest timer event, select this one to avoid getting + * stuck in the shallow one for too long. + */ + if (drv->states[idx].target_residency < TICK_USEC && + s->target_residency <= ktime_to_us(delta_next)) + idx = i; + + goto out; + } if (s->exit_latency > latency_req) { /* * If we break out of the loop for latency reasons, use @@ -403,14 +426,13 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, * Don't stop the tick if the selected state is a polling one or if the * expected idle duration is shorter than the tick period length. */ - if ((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) || - expected_interval < TICK_USEC) { + if (((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) || + expected_interval < TICK_USEC) && !tick_nohz_tick_stopped()) { unsigned int delta_next_us = ktime_to_us(delta_next); *stop_tick = false; - if (!tick_nohz_tick_stopped() && idx > 0 && - drv->states[idx].target_residency > delta_next_us) { + if (idx > 0 && drv->states[idx].target_residency > delta_next_us) { /* * The tick is not going to be stopped and the target * residency of the state to be returned is not within @@ -429,6 +451,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, } } +out: data->last_state_idx = idx; return data->last_state_idx; diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index 6e61cc93c2b0..d7aa7d7ff102 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -679,10 +679,8 @@ static int xts_ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher, int ret = 0; if (keylen != 2 * AES_MIN_KEY_SIZE && keylen != 2 * AES_MAX_KEY_SIZE) { - crypto_ablkcipher_set_flags(ablkcipher, - CRYPTO_TFM_RES_BAD_KEY_LEN); dev_err(jrdev, "key size mismatch\n"); - return -EINVAL; + goto badkey; } ctx->cdata.keylen = keylen; @@ -715,7 +713,7 @@ static int xts_ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher, return ret; badkey: crypto_ablkcipher_set_flags(ablkcipher, CRYPTO_TFM_RES_BAD_KEY_LEN); - return 0; + return -EINVAL; } /* diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c index 578ea63a3109..f26d62e5533a 100644 --- a/drivers/crypto/caam/caampkc.c +++ b/drivers/crypto/caam/caampkc.c @@ -71,8 +71,8 @@ static void rsa_priv_f2_unmap(struct device *dev, struct rsa_edesc *edesc, dma_unmap_single(dev, pdb->d_dma, key->d_sz, DMA_TO_DEVICE); dma_unmap_single(dev, pdb->p_dma, p_sz, DMA_TO_DEVICE); dma_unmap_single(dev, pdb->q_dma, q_sz, DMA_TO_DEVICE); - dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE); - dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_TO_DEVICE); + dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL); + dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_BIDIRECTIONAL); } static void rsa_priv_f3_unmap(struct device *dev, struct rsa_edesc *edesc, @@ -90,8 +90,8 @@ static void rsa_priv_f3_unmap(struct device *dev, struct rsa_edesc *edesc, dma_unmap_single(dev, pdb->dp_dma, p_sz, DMA_TO_DEVICE); dma_unmap_single(dev, pdb->dq_dma, q_sz, DMA_TO_DEVICE); dma_unmap_single(dev, pdb->c_dma, p_sz, DMA_TO_DEVICE); - dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE); - dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_TO_DEVICE); + dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL); + dma_unmap_single(dev, pdb->tmp2_dma, q_sz, DMA_BIDIRECTIONAL); } /* RSA Job Completion handler */ @@ -417,13 +417,13 @@ static int set_rsa_priv_f2_pdb(struct akcipher_request *req, goto unmap_p; } - pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_TO_DEVICE); + pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, pdb->tmp1_dma)) { dev_err(dev, "Unable to map RSA tmp1 memory\n"); goto unmap_q; } - pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_TO_DEVICE); + pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, pdb->tmp2_dma)) { dev_err(dev, "Unable to map RSA tmp2 memory\n"); goto unmap_tmp1; @@ -451,7 +451,7 @@ static int set_rsa_priv_f2_pdb(struct akcipher_request *req, return 0; unmap_tmp1: - dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE); + dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL); unmap_q: dma_unmap_single(dev, pdb->q_dma, q_sz, DMA_TO_DEVICE); unmap_p: @@ -504,13 +504,13 @@ static int set_rsa_priv_f3_pdb(struct akcipher_request *req, goto unmap_dq; } - pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_TO_DEVICE); + pdb->tmp1_dma = dma_map_single(dev, key->tmp1, p_sz, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, pdb->tmp1_dma)) { dev_err(dev, "Unable to map RSA tmp1 memory\n"); goto unmap_qinv; } - pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_TO_DEVICE); + pdb->tmp2_dma = dma_map_single(dev, key->tmp2, q_sz, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, pdb->tmp2_dma)) { dev_err(dev, "Unable to map RSA tmp2 memory\n"); goto unmap_tmp1; @@ -538,7 +538,7 @@ static int set_rsa_priv_f3_pdb(struct akcipher_request *req, return 0; unmap_tmp1: - dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_TO_DEVICE); + dma_unmap_single(dev, pdb->tmp1_dma, p_sz, DMA_BIDIRECTIONAL); unmap_qinv: dma_unmap_single(dev, pdb->c_dma, p_sz, DMA_TO_DEVICE); unmap_dq: diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index f4f258075b89..acdd72016ffe 100644 --- a/drivers/crypto/caam/jr.c +++ b/drivers/crypto/caam/jr.c @@ -190,7 +190,8 @@ static void caam_jr_dequeue(unsigned long devarg) BUG_ON(CIRC_CNT(head, tail + i, JOBR_DEPTH) <= 0); /* Unmap just-run descriptor so we can post-process */ - dma_unmap_single(dev, jrp->outring[hw_idx].desc, + dma_unmap_single(dev, + caam_dma_to_cpu(jrp->outring[hw_idx].desc), jrp->entinfo[sw_idx].desc_size, DMA_TO_DEVICE); diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c index 5285ece4f33a..b71895871be3 100644 --- a/drivers/crypto/vmx/aes_cbc.c +++ b/drivers/crypto/vmx/aes_cbc.c @@ -107,24 +107,23 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc, ret = crypto_skcipher_encrypt(req); skcipher_request_zero(req); } else { - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - blkcipher_walk_init(&walk, dst, src, nbytes); ret = blkcipher_walk_virt(desc, &walk); while ((nbytes = walk.nbytes)) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); aes_p8_cbc_encrypt(walk.src.virt.addr, walk.dst.virt.addr, nbytes & AES_BLOCK_MASK, &ctx->enc_key, walk.iv, 1); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, &walk, nbytes); } - - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); } return ret; @@ -147,24 +146,23 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc, ret = crypto_skcipher_decrypt(req); skcipher_request_zero(req); } else { - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - blkcipher_walk_init(&walk, dst, src, nbytes); ret = blkcipher_walk_virt(desc, &walk); while ((nbytes = walk.nbytes)) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); aes_p8_cbc_encrypt(walk.src.virt.addr, walk.dst.virt.addr, nbytes & AES_BLOCK_MASK, &ctx->dec_key, walk.iv, 0); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, &walk, nbytes); } - - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); } return ret; diff --git a/drivers/crypto/vmx/aes_xts.c b/drivers/crypto/vmx/aes_xts.c index 8bd9aff0f55f..e9954a7d4694 100644 --- a/drivers/crypto/vmx/aes_xts.c +++ b/drivers/crypto/vmx/aes_xts.c @@ -116,32 +116,39 @@ static int p8_aes_xts_crypt(struct blkcipher_desc *desc, ret = enc? crypto_skcipher_encrypt(req) : crypto_skcipher_decrypt(req); skcipher_request_zero(req); } else { + blkcipher_walk_init(&walk, dst, src, nbytes); + + ret = blkcipher_walk_virt(desc, &walk); + preempt_disable(); pagefault_disable(); enable_kernel_vsx(); - blkcipher_walk_init(&walk, dst, src, nbytes); - - ret = blkcipher_walk_virt(desc, &walk); iv = walk.iv; memset(tweak, 0, AES_BLOCK_SIZE); aes_p8_encrypt(iv, tweak, &ctx->tweak_key); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + while ((nbytes = walk.nbytes)) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); if (enc) aes_p8_xts_encrypt(walk.src.virt.addr, walk.dst.virt.addr, nbytes & AES_BLOCK_MASK, &ctx->enc_key, NULL, tweak); else aes_p8_xts_decrypt(walk.src.virt.addr, walk.dst.virt.addr, nbytes & AES_BLOCK_MASK, &ctx->dec_key, NULL, tweak); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, &walk, nbytes); } - - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); } return ret; } diff --git a/drivers/dma-buf/reservation.c b/drivers/dma-buf/reservation.c index 314eb1071cce..532545b9488e 100644 --- a/drivers/dma-buf/reservation.c +++ b/drivers/dma-buf/reservation.c @@ -141,6 +141,7 @@ reservation_object_add_shared_inplace(struct reservation_object *obj, if (signaled) { RCU_INIT_POINTER(fobj->shared[signaled_idx], fence); } else { + BUG_ON(fobj->shared_count >= fobj->shared_max); RCU_INIT_POINTER(fobj->shared[fobj->shared_count], fence); fobj->shared_count++; } @@ -230,10 +231,9 @@ void reservation_object_add_shared_fence(struct reservation_object *obj, old = reservation_object_get_list(obj); obj->staged = NULL; - if (!fobj) { - BUG_ON(old->shared_count >= old->shared_max); + if (!fobj) reservation_object_add_shared_inplace(obj, old, fence); - } else + else reservation_object_add_shared_replace(obj, old, fobj, fence); } EXPORT_SYMBOL(reservation_object_add_shared_fence); diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c index af83ad58819c..b9d27c8fe57e 100644 --- a/drivers/extcon/extcon.c +++ b/drivers/extcon/extcon.c @@ -433,8 +433,8 @@ int extcon_sync(struct extcon_dev *edev, unsigned int id) return index; spin_lock_irqsave(&edev->lock, flags); - state = !!(edev->state & BIT(index)); + spin_unlock_irqrestore(&edev->lock, flags); /* * Call functions in a raw notifier chain for the specific one @@ -448,6 +448,7 @@ int extcon_sync(struct extcon_dev *edev, unsigned int id) */ raw_notifier_call_chain(&edev->nh_all, state, edev); + spin_lock_irqsave(&edev->lock, flags); /* This could be in interrupt handler */ prop_buf = (char *)get_zeroed_page(GFP_ATOMIC); if (!prop_buf) { diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index ba0a092ae085..c3949220b770 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -558,11 +558,8 @@ static void reset_channel_cb(void *arg) channel->onchannel_callback = NULL; } -static int vmbus_close_internal(struct vmbus_channel *channel) +void vmbus_reset_channel_cb(struct vmbus_channel *channel) { - struct vmbus_channel_close_channel *msg; - int ret; - /* * vmbus_on_event(), running in the per-channel tasklet, can race * with vmbus_close_internal() in the case of SMP guest, e.g., when @@ -572,6 +569,29 @@ static int vmbus_close_internal(struct vmbus_channel *channel) */ tasklet_disable(&channel->callback_event); + channel->sc_creation_callback = NULL; + + /* Stop the callback asap */ + if (channel->target_cpu != get_cpu()) { + put_cpu(); + smp_call_function_single(channel->target_cpu, reset_channel_cb, + channel, true); + } else { + reset_channel_cb(channel); + put_cpu(); + } + + /* Re-enable tasklet for use on re-open */ + tasklet_enable(&channel->callback_event); +} + +static int vmbus_close_internal(struct vmbus_channel *channel) +{ + struct vmbus_channel_close_channel *msg; + int ret; + + vmbus_reset_channel_cb(channel); + /* * In case a device driver's probe() fails (e.g., * util_probe() -> vmbus_open() returns -ENOMEM) and the device is @@ -585,16 +605,6 @@ static int vmbus_close_internal(struct vmbus_channel *channel) } channel->state = CHANNEL_OPEN_STATE; - channel->sc_creation_callback = NULL; - /* Stop callback and cancel the timer asap */ - if (channel->target_cpu != get_cpu()) { - put_cpu(); - smp_call_function_single(channel->target_cpu, reset_channel_cb, - channel, true); - } else { - reset_channel_cb(channel); - put_cpu(); - } /* Send a closing message */ @@ -639,8 +649,6 @@ static int vmbus_close_internal(struct vmbus_channel *channel) get_order(channel->ringbuffer_pagecount * PAGE_SIZE)); out: - /* re-enable tasklet for use on re-open */ - tasklet_enable(&channel->callback_event); return ret; } diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index ecc2bd275a73..0f0e091c117c 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -527,10 +527,8 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel) struct hv_device *dev = newchannel->primary_channel->device_obj; - if (vmbus_add_channel_kobj(dev, newchannel)) { - atomic_dec(&vmbus_connection.offer_in_progress); + if (vmbus_add_channel_kobj(dev, newchannel)) goto err_free_chan; - } if (channel->sc_creation_callback != NULL) channel->sc_creation_callback(newchannel); @@ -894,6 +892,12 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr) return; } + /* + * Before setting channel->rescind in vmbus_rescind_cleanup(), we + * should make sure the channel callback is not running any more. + */ + vmbus_reset_channel_cb(channel); + /* * Now wait for offer handling to complete. */ diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 27436a937492..54b2a3a86677 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -693,7 +693,6 @@ int i2c_dw_probe(struct dw_i2c_dev *dev) i2c_set_adapdata(adap, dev); if (dev->pm_disabled) { - dev_pm_syscore_device(dev->dev, true); irq_flags = IRQF_NO_SUSPEND; } else { irq_flags = IRQF_SHARED | IRQF_COND_SUSPEND; diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 5660daf6c92e..d281d21cdd8e 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -448,6 +448,9 @@ static int dw_i2c_plat_suspend(struct device *dev) { struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); + if (i_dev->pm_disabled) + return 0; + i_dev->disable(i_dev); i2c_dw_prepare_clk(i_dev, false); @@ -458,7 +461,9 @@ static int dw_i2c_plat_resume(struct device *dev) { struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - i2c_dw_prepare_clk(i_dev, true); + if (!i_dev->pm_disabled) + i2c_dw_prepare_clk(i_dev, true); + i_dev->init(i_dev); return 0; diff --git a/drivers/iio/accel/sca3000.c b/drivers/iio/accel/sca3000.c index 4dceb75e3586..4964561595f5 100644 --- a/drivers/iio/accel/sca3000.c +++ b/drivers/iio/accel/sca3000.c @@ -797,6 +797,7 @@ static int sca3000_write_raw(struct iio_dev *indio_dev, mutex_lock(&st->lock); ret = sca3000_write_3db_freq(st, val); mutex_unlock(&st->lock); + return ret; default: return -EINVAL; } diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c index ddb6a334ae68..8e8263758439 100644 --- a/drivers/iio/frequency/ad9523.c +++ b/drivers/iio/frequency/ad9523.c @@ -508,7 +508,7 @@ static ssize_t ad9523_store(struct device *dev, return ret; if (!state) - return 0; + return len; mutex_lock(&indio_dev->mlock); switch ((u32)this_attr->address) { @@ -642,7 +642,7 @@ static int ad9523_read_raw(struct iio_dev *indio_dev, code = (AD9523_CLK_DIST_DIV_PHASE_REV(ret) * 3141592) / AD9523_CLK_DIST_DIV_REV(ret); *val = code / 1000000; - *val2 = (code % 1000000) * 10; + *val2 = code % 1000000; return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index b3ba9a222550..cbeae4509359 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -4694,7 +4694,7 @@ static void mlx5_ib_dealloc_counters(struct mlx5_ib_dev *dev) int i; for (i = 0; i < dev->num_ports; i++) { - if (dev->port[i].cnts.set_id) + if (dev->port[i].cnts.set_id_valid) mlx5_core_dealloc_q_counter(dev->mdev, dev->port[i].cnts.set_id); kfree(dev->port[i].cnts.names); diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index a4f1f638509f..01eae67d5a6e 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -1626,7 +1626,7 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, struct mlx5_ib_resources *devr = &dev->devr; int inlen = MLX5_ST_SZ_BYTES(create_qp_in); struct mlx5_core_dev *mdev = dev->mdev; - struct mlx5_ib_create_qp_resp resp; + struct mlx5_ib_create_qp_resp resp = {}; struct mlx5_ib_cq *send_cq; struct mlx5_ib_cq *recv_cq; unsigned long flags; @@ -5365,7 +5365,9 @@ static int set_user_rq_size(struct mlx5_ib_dev *dev, rwq->wqe_count = ucmd->rq_wqe_count; rwq->wqe_shift = ucmd->rq_wqe_shift; - rwq->buf_size = (rwq->wqe_count << rwq->wqe_shift); + if (check_shl_overflow(rwq->wqe_count, rwq->wqe_shift, &rwq->buf_size)) + return -EINVAL; + rwq->log_rq_stride = rwq->wqe_shift; rwq->log_rq_size = ilog2(rwq->wqe_count); return 0; diff --git a/drivers/infiniband/sw/rxe/rxe_comp.c b/drivers/infiniband/sw/rxe/rxe_comp.c index 98d470d1f3fc..83311dd07019 100644 --- a/drivers/infiniband/sw/rxe/rxe_comp.c +++ b/drivers/infiniband/sw/rxe/rxe_comp.c @@ -276,6 +276,7 @@ static inline enum comp_state check_ack(struct rxe_qp *qp, case IB_OPCODE_RC_RDMA_READ_RESPONSE_MIDDLE: if (wqe->wr.opcode != IB_WR_RDMA_READ && wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV) { + wqe->status = IB_WC_FATAL_ERR; return COMPST_ERROR; } reset_retry_counters(qp); diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 3081c629a7f7..8a9633e97bec 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -1833,8 +1833,7 @@ static bool srpt_close_ch(struct srpt_rdma_ch *ch) int ret; if (!srpt_set_ch_state(ch, CH_DRAINING)) { - pr_debug("%s-%d: already closed\n", ch->sess_name, - ch->qp->qp_num); + pr_debug("%s: already closed\n", ch->sess_name); return false; } @@ -1940,8 +1939,8 @@ static void __srpt_close_all_ch(struct srpt_port *sport) list_for_each_entry(nexus, &sport->nexus_list, entry) { list_for_each_entry(ch, &nexus->ch_list, list) { if (srpt_disconnect_ch(ch) >= 0) - pr_info("Closing channel %s-%d because target %s_%d has been disabled\n", - ch->sess_name, ch->qp->qp_num, + pr_info("Closing channel %s because target %s_%d has been disabled\n", + ch->sess_name, sport->sdev->device->name, sport->port); srpt_close_ch(ch); } @@ -2087,7 +2086,7 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev, struct rdma_conn_param rdma_cm; struct ib_cm_rep_param ib_cm; } *rep_param = NULL; - struct srpt_rdma_ch *ch; + struct srpt_rdma_ch *ch = NULL; char i_port_id[36]; u32 it_iu_len; int i, ret; @@ -2234,13 +2233,15 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev, TARGET_PROT_NORMAL, i_port_id + 2, ch, NULL); if (IS_ERR_OR_NULL(ch->sess)) { + WARN_ON_ONCE(ch->sess == NULL); ret = PTR_ERR(ch->sess); + ch->sess = NULL; pr_info("Rejected login for initiator %s: ret = %d.\n", ch->sess_name, ret); rej->reason = cpu_to_be32(ret == -ENOMEM ? SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES : SRP_LOGIN_REJ_CHANNEL_LIMIT_REACHED); - goto reject; + goto destroy_ib; } mutex_lock(&sport->mutex); @@ -2279,7 +2280,7 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev, rej->reason = cpu_to_be32(SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES); pr_err("rejected SRP_LOGIN_REQ because enabling RTR failed (error code = %d)\n", ret); - goto destroy_ib; + goto reject; } pr_debug("Establish connection sess=%p name=%s ch=%p\n", ch->sess, @@ -2358,8 +2359,11 @@ free_ring: srpt_free_ioctx_ring((struct srpt_ioctx **)ch->ioctx_ring, ch->sport->sdev, ch->rq_size, ch->max_rsp_size, DMA_TO_DEVICE); + free_ch: - if (ib_cm_id) + if (rdma_cm_id) + rdma_cm_id->context = NULL; + else ib_cm_id->context = NULL; kfree(ch); ch = NULL; @@ -2379,6 +2383,15 @@ reject: ib_send_cm_rej(ib_cm_id, IB_CM_REJ_CONSUMER_DEFINED, NULL, 0, rej, sizeof(*rej)); + if (ch && ch->sess) { + srpt_close_ch(ch); + /* + * Tell the caller not to free cm_id since + * srpt_release_channel_work() will do that. + */ + ret = 0; + } + out: kfree(rep_param); kfree(rsp); @@ -2969,7 +2982,8 @@ static void srpt_add_one(struct ib_device *device) pr_debug("device = %p\n", device); - sdev = kzalloc(sizeof(*sdev), GFP_KERNEL); + sdev = kzalloc(struct_size(sdev, port, device->phys_port_cnt), + GFP_KERNEL); if (!sdev) goto err; @@ -3023,8 +3037,6 @@ static void srpt_add_one(struct ib_device *device) srpt_event_handler); ib_register_event_handler(&sdev->event_handler); - WARN_ON(sdev->device->phys_port_cnt > ARRAY_SIZE(sdev->port)); - for (i = 1; i <= sdev->device->phys_port_cnt; i++) { sport = &sdev->port[i - 1]; INIT_LIST_HEAD(&sport->nexus_list); diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h index 2361483476a0..444dfd7281b5 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.h +++ b/drivers/infiniband/ulp/srpt/ib_srpt.h @@ -396,9 +396,9 @@ struct srpt_port { * @sdev_mutex: Serializes use_srq changes. * @use_srq: Whether or not to use SRQ. * @ioctx_ring: Per-HCA SRQ. - * @port: Information about the ports owned by this HCA. * @event_handler: Per-HCA asynchronous IB event handler. * @list: Node in srpt_dev_list. + * @port: Information about the ports owned by this HCA. */ struct srpt_device { struct ib_device *device; @@ -410,9 +410,9 @@ struct srpt_device { struct mutex sdev_mutex; bool use_srq; struct srpt_recv_ioctx **ioctx_ring; - struct srpt_port port[2]; struct ib_event_handler event_handler; struct list_head list; + struct srpt_port port[]; }; #endif /* IB_SRPT_H */ diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index 75456b5aa825..d9c748b6f9e4 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1339,8 +1339,8 @@ void qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr, qi_submit_sync(&desc, iommu); } -void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 qdep, - u64 addr, unsigned mask) +void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 pfsid, + u16 qdep, u64 addr, unsigned mask) { struct qi_desc desc; @@ -1355,7 +1355,7 @@ void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 qdep, qdep = 0; desc.low = QI_DEV_IOTLB_SID(sid) | QI_DEV_IOTLB_QDEP(qdep) | - QI_DIOTLB_TYPE; + QI_DIOTLB_TYPE | QI_DEV_IOTLB_PFSID(pfsid); qi_submit_sync(&desc, iommu); } diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 115ff26e9ced..07dc938199f9 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -421,6 +421,7 @@ struct device_domain_info { struct list_head global; /* link to global list */ u8 bus; /* PCI bus number */ u8 devfn; /* PCI devfn number */ + u16 pfsid; /* SRIOV physical function source ID */ u8 pasid_supported:3; u8 pasid_enabled:1; u8 pri_supported:1; @@ -1501,6 +1502,20 @@ static void iommu_enable_dev_iotlb(struct device_domain_info *info) return; pdev = to_pci_dev(info->dev); + /* For IOMMU that supports device IOTLB throttling (DIT), we assign + * PFSID to the invalidation desc of a VF such that IOMMU HW can gauge + * queue depth at PF level. If DIT is not set, PFSID will be treated as + * reserved, which should be set to 0. + */ + if (!ecap_dit(info->iommu->ecap)) + info->pfsid = 0; + else { + struct pci_dev *pf_pdev; + + /* pdev will be returned if device is not a vf */ + pf_pdev = pci_physfn(pdev); + info->pfsid = PCI_DEVID(pf_pdev->bus->number, pf_pdev->devfn); + } #ifdef CONFIG_INTEL_IOMMU_SVM /* The PCIe spec, in its wisdom, declares that the behaviour of @@ -1566,7 +1581,8 @@ static void iommu_flush_dev_iotlb(struct dmar_domain *domain, sid = info->bus << 8 | info->devfn; qdep = info->ats_qdep; - qi_flush_dev_iotlb(info->iommu, sid, qdep, addr, mask); + qi_flush_dev_iotlb(info->iommu, sid, info->pfsid, + qdep, addr, mask); } spin_unlock_irqrestore(&device_domain_lock, flags); } diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 40ae6e87cb88..09b47260c74b 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -1081,12 +1081,19 @@ static struct platform_driver ipmmu_driver = { static int __init ipmmu_init(void) { + struct device_node *np; static bool setup_done; int ret; if (setup_done) return 0; + np = of_find_matching_node(NULL, ipmmu_of_ids); + if (!np) + return 0; + + of_node_put(np); + ret = platform_driver_register(&ipmmu_driver); if (ret < 0) return ret; diff --git a/drivers/mailbox/mailbox-xgene-slimpro.c b/drivers/mailbox/mailbox-xgene-slimpro.c index a7040163dd43..b8b2b3533f46 100644 --- a/drivers/mailbox/mailbox-xgene-slimpro.c +++ b/drivers/mailbox/mailbox-xgene-slimpro.c @@ -195,9 +195,9 @@ static int slimpro_mbox_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ctx); regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - mb_base = devm_ioremap(&pdev->dev, regs->start, resource_size(regs)); - if (!mb_base) - return -ENOMEM; + mb_base = devm_ioremap_resource(&pdev->dev, regs); + if (IS_ERR(mb_base)) + return PTR_ERR(mb_base); /* Setup mailbox links */ for (i = 0; i < MBOX_CNT; i++) { diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c index ad45ebe1a74b..6c33923c2c35 100644 --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -645,8 +645,10 @@ static int bch_writeback_thread(void *arg) * data on cache. BCACHE_DEV_DETACHING flag is set in * bch_cached_dev_detach(). */ - if (test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags)) + if (test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags)) { + up_write(&dc->writeback_lock); break; + } } up_write(&dc->writeback_lock); diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c index 0d7212410e21..69dddeab124c 100644 --- a/drivers/md/dm-cache-metadata.c +++ b/drivers/md/dm-cache-metadata.c @@ -363,7 +363,7 @@ static int __write_initial_superblock(struct dm_cache_metadata *cmd) disk_super->version = cpu_to_le32(cmd->version); memset(disk_super->policy_name, 0, sizeof(disk_super->policy_name)); memset(disk_super->policy_version, 0, sizeof(disk_super->policy_version)); - disk_super->policy_hint_size = 0; + disk_super->policy_hint_size = cpu_to_le32(0); __copy_sm_root(cmd, disk_super); @@ -701,6 +701,7 @@ static int __commit_transaction(struct dm_cache_metadata *cmd, disk_super->policy_version[0] = cpu_to_le32(cmd->policy_version[0]); disk_super->policy_version[1] = cpu_to_le32(cmd->policy_version[1]); disk_super->policy_version[2] = cpu_to_le32(cmd->policy_version[2]); + disk_super->policy_hint_size = cpu_to_le32(cmd->policy_hint_size); disk_super->read_hits = cpu_to_le32(cmd->stats.read_hits); disk_super->read_misses = cpu_to_le32(cmd->stats.read_misses); @@ -1322,6 +1323,7 @@ static int __load_mapping_v1(struct dm_cache_metadata *cmd, dm_oblock_t oblock; unsigned flags; + bool dirty = true; dm_array_cursor_get_value(mapping_cursor, (void **) &mapping_value_le); memcpy(&mapping, mapping_value_le, sizeof(mapping)); @@ -1332,8 +1334,10 @@ static int __load_mapping_v1(struct dm_cache_metadata *cmd, dm_array_cursor_get_value(hint_cursor, (void **) &hint_value_le); memcpy(&hint, hint_value_le, sizeof(hint)); } + if (cmd->clean_when_opened) + dirty = flags & M_DIRTY; - r = fn(context, oblock, to_cblock(cb), flags & M_DIRTY, + r = fn(context, oblock, to_cblock(cb), dirty, le32_to_cpu(hint), hints_valid); if (r) { DMERR("policy couldn't load cache block %llu", @@ -1361,7 +1365,7 @@ static int __load_mapping_v2(struct dm_cache_metadata *cmd, dm_oblock_t oblock; unsigned flags; - bool dirty; + bool dirty = true; dm_array_cursor_get_value(mapping_cursor, (void **) &mapping_value_le); memcpy(&mapping, mapping_value_le, sizeof(mapping)); @@ -1372,8 +1376,9 @@ static int __load_mapping_v2(struct dm_cache_metadata *cmd, dm_array_cursor_get_value(hint_cursor, (void **) &hint_value_le); memcpy(&hint, hint_value_le, sizeof(hint)); } + if (cmd->clean_when_opened) + dirty = dm_bitset_cursor_get_value(dirty_cursor); - dirty = dm_bitset_cursor_get_value(dirty_cursor); r = fn(context, oblock, to_cblock(cb), dirty, le32_to_cpu(hint), hints_valid); if (r) { diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index b61b069c33af..3fdec1147221 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -3069,11 +3069,11 @@ static void crypt_io_hints(struct dm_target *ti, struct queue_limits *limits) */ limits->max_segment_size = PAGE_SIZE; - if (cc->sector_size != (1 << SECTOR_SHIFT)) { - limits->logical_block_size = cc->sector_size; - limits->physical_block_size = cc->sector_size; - blk_limits_io_min(limits, cc->sector_size); - } + limits->logical_block_size = + max_t(unsigned short, limits->logical_block_size, cc->sector_size); + limits->physical_block_size = + max_t(unsigned, limits->physical_block_size, cc->sector_size); + limits->io_min = max_t(unsigned, limits->io_min, cc->sector_size); } static struct target_type crypt_target = { diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 86438b2f10dd..0a8a4c2aa3ea 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -178,7 +178,7 @@ struct dm_integrity_c { __u8 sectors_per_block; unsigned char mode; - bool suspending; + int suspending; int failed; @@ -2210,7 +2210,7 @@ static void dm_integrity_postsuspend(struct dm_target *ti) del_timer_sync(&ic->autocommit_timer); - ic->suspending = true; + WRITE_ONCE(ic->suspending, 1); queue_work(ic->commit_wq, &ic->commit_work); drain_workqueue(ic->commit_wq); @@ -2220,7 +2220,7 @@ static void dm_integrity_postsuspend(struct dm_target *ti) dm_integrity_flush_buffers(ic); } - ic->suspending = false; + WRITE_ONCE(ic->suspending, 0); BUG_ON(!RB_EMPTY_ROOT(&ic->in_progress)); diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index b900723bbd0f..1087f6a1ac79 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2520,6 +2520,8 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode) case PM_WRITE: if (old_mode != new_mode) notify_of_pool_mode_change(pool, "write"); + if (old_mode == PM_OUT_OF_DATA_SPACE) + cancel_delayed_work_sync(&pool->no_space_timeout); pool->out_of_data_space = false; pool->pf.error_if_no_space = pt->requested_pf.error_if_no_space; dm_pool_metadata_read_write(pool->pmd); diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c index 87107c995cb5..7669069005e9 100644 --- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -457,7 +457,7 @@ static void ssd_commit_flushed(struct dm_writecache *wc) COMPLETION_INITIALIZER_ONSTACK(endio.c), ATOMIC_INIT(1), }; - unsigned bitmap_bits = wc->dirty_bitmap_size * BITS_PER_LONG; + unsigned bitmap_bits = wc->dirty_bitmap_size * 8; unsigned i = 0; while (1) { diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c index b162c2fe62c3..76e6bed5a1da 100644 --- a/drivers/media/i2c/tvp5150.c +++ b/drivers/media/i2c/tvp5150.c @@ -872,7 +872,7 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd, f = &format->format; f->width = decoder->rect.width; - f->height = decoder->rect.height; + f->height = decoder->rect.height / 2; f->code = MEDIA_BUS_FMT_UYVY8_2X8; f->field = V4L2_FIELD_ALTERNATE; diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c index c37ccbfd52f2..96c07fa1802a 100644 --- a/drivers/mfd/hi655x-pmic.c +++ b/drivers/mfd/hi655x-pmic.c @@ -49,7 +49,7 @@ static struct regmap_config hi655x_regmap_config = { .reg_bits = 32, .reg_stride = HI655X_STRIDE, .val_bits = 8, - .max_register = HI655X_BUS_ADDR(0xFFF), + .max_register = HI655X_BUS_ADDR(0x400) - HI655X_STRIDE, }; static struct resource pwrkey_resources[] = { diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c index c1ba0d42cbc8..e0f29b8a872d 100644 --- a/drivers/misc/cxl/main.c +++ b/drivers/misc/cxl/main.c @@ -287,7 +287,7 @@ int cxl_adapter_context_get(struct cxl *adapter) int rc; rc = atomic_inc_unless_negative(&adapter->contexts_num); - return rc >= 0 ? 0 : -EBUSY; + return rc ? 0 : -EBUSY; } void cxl_adapter_context_put(struct cxl *adapter) diff --git a/drivers/misc/ocxl/link.c b/drivers/misc/ocxl/link.c index 88876ae8f330..a963b0a4a3c5 100644 --- a/drivers/misc/ocxl/link.c +++ b/drivers/misc/ocxl/link.c @@ -136,7 +136,7 @@ static void xsl_fault_handler_bh(struct work_struct *fault_work) int rc; /* - * We need to release a reference on the mm whenever exiting this + * We must release a reference on mm_users whenever exiting this * function (taken in the memory fault interrupt handler) */ rc = copro_handle_mm_fault(fault->pe_data.mm, fault->dar, fault->dsisr, @@ -172,7 +172,7 @@ static void xsl_fault_handler_bh(struct work_struct *fault_work) } r = RESTART; ack: - mmdrop(fault->pe_data.mm); + mmput(fault->pe_data.mm); ack_irq(spa, r); } @@ -184,6 +184,7 @@ static irqreturn_t xsl_fault_handler(int irq, void *data) struct pe_data *pe_data; struct ocxl_process_element *pe; int lpid, pid, tid; + bool schedule = false; read_irq(spa, &dsisr, &dar, &pe_handle); trace_ocxl_fault(spa->spa_mem, pe_handle, dsisr, dar, -1); @@ -226,14 +227,19 @@ static irqreturn_t xsl_fault_handler(int irq, void *data) } WARN_ON(pe_data->mm->context.id != pid); - spa->xsl_fault.pe = pe_handle; - spa->xsl_fault.dar = dar; - spa->xsl_fault.dsisr = dsisr; - spa->xsl_fault.pe_data = *pe_data; - mmgrab(pe_data->mm); /* mm count is released by bottom half */ - + if (mmget_not_zero(pe_data->mm)) { + spa->xsl_fault.pe = pe_handle; + spa->xsl_fault.dar = dar; + spa->xsl_fault.dsisr = dsisr; + spa->xsl_fault.pe_data = *pe_data; + schedule = true; + /* mm_users count released by bottom half */ + } rcu_read_unlock(); - schedule_work(&spa->xsl_fault.fault_work); + if (schedule) + schedule_work(&spa->xsl_fault.fault_work); + else + ack_irq(spa, ADDRESS_ERROR); return IRQ_HANDLED; } diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c index 56c6f79a5c5a..5f8b583c6e41 100644 --- a/drivers/misc/vmw_balloon.c +++ b/drivers/misc/vmw_balloon.c @@ -341,7 +341,13 @@ static bool vmballoon_send_start(struct vmballoon *b, unsigned long req_caps) success = false; } - if (b->capabilities & VMW_BALLOON_BATCHED_2M_CMDS) + /* + * 2MB pages are only supported with batching. If batching is for some + * reason disabled, do not use 2MB pages, since otherwise the legacy + * mechanism is used with 2MB pages, causing a failure. + */ + if ((b->capabilities & VMW_BALLOON_BATCHED_2M_CMDS) && + (b->capabilities & VMW_BALLOON_BATCHED_CMDS)) b->supported_page_sizes = 2; else b->supported_page_sizes = 1; @@ -450,7 +456,7 @@ static int vmballoon_send_lock_page(struct vmballoon *b, unsigned long pfn, pfn32 = (u32)pfn; if (pfn32 != pfn) - return -1; + return -EINVAL; STATS_INC(b->stats.lock[false]); @@ -460,7 +466,7 @@ static int vmballoon_send_lock_page(struct vmballoon *b, unsigned long pfn, pr_debug("%s - ppn %lx, hv returns %ld\n", __func__, pfn, status); STATS_INC(b->stats.lock_fail[false]); - return 1; + return -EIO; } static int vmballoon_send_batched_lock(struct vmballoon *b, @@ -597,11 +603,12 @@ static int vmballoon_lock_page(struct vmballoon *b, unsigned int num_pages, locked = vmballoon_send_lock_page(b, page_to_pfn(page), &hv_status, target); - if (locked > 0) { + if (locked) { STATS_INC(b->stats.refused_alloc[false]); - if (hv_status == VMW_BALLOON_ERROR_RESET || - hv_status == VMW_BALLOON_ERROR_PPN_NOTNEEDED) { + if (locked == -EIO && + (hv_status == VMW_BALLOON_ERROR_RESET || + hv_status == VMW_BALLOON_ERROR_PPN_NOTNEEDED)) { vmballoon_free_page(page, false); return -EIO; } @@ -617,7 +624,7 @@ static int vmballoon_lock_page(struct vmballoon *b, unsigned int num_pages, } else { vmballoon_free_page(page, false); } - return -EIO; + return locked; } /* track allocated page */ @@ -1029,29 +1036,30 @@ static void vmballoon_vmci_cleanup(struct vmballoon *b) */ static int vmballoon_vmci_init(struct vmballoon *b) { - int error = 0; + unsigned long error, dummy; - if ((b->capabilities & VMW_BALLOON_SIGNALLED_WAKEUP_CMD) != 0) { - error = vmci_doorbell_create(&b->vmci_doorbell, - VMCI_FLAG_DELAYED_CB, - VMCI_PRIVILEGE_FLAG_RESTRICTED, - vmballoon_doorbell, b); - - if (error == VMCI_SUCCESS) { - VMWARE_BALLOON_CMD(VMCI_DOORBELL_SET, - b->vmci_doorbell.context, - b->vmci_doorbell.resource, error); - STATS_INC(b->stats.doorbell_set); - } - } + if ((b->capabilities & VMW_BALLOON_SIGNALLED_WAKEUP_CMD) == 0) + return 0; - if (error != 0) { - vmballoon_vmci_cleanup(b); + error = vmci_doorbell_create(&b->vmci_doorbell, VMCI_FLAG_DELAYED_CB, + VMCI_PRIVILEGE_FLAG_RESTRICTED, + vmballoon_doorbell, b); - return -EIO; - } + if (error != VMCI_SUCCESS) + goto fail; + + error = VMWARE_BALLOON_CMD(VMCI_DOORBELL_SET, b->vmci_doorbell.context, + b->vmci_doorbell.resource, dummy); + + STATS_INC(b->stats.doorbell_set); + + if (error != VMW_BALLOON_SUCCESS) + goto fail; return 0; +fail: + vmballoon_vmci_cleanup(b); + return -EIO; } /* @@ -1289,7 +1297,14 @@ static int __init vmballoon_init(void) return 0; } -module_init(vmballoon_init); + +/* + * Using late_initcall() instead of module_init() allows the balloon to use the + * VMCI doorbell even when the balloon is built into the kernel. Otherwise the + * VMCI is probed only after the balloon is initialized. If the balloon is used + * as a module, late_initcall() is equivalent to module_init(). + */ +late_initcall(vmballoon_init); static void __exit vmballoon_exit(void) { diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index 648eb6743ed5..6edffeed9953 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -238,10 +238,6 @@ static void mmc_mq_exit_request(struct blk_mq_tag_set *set, struct request *req, mmc_exit_request(mq->queue, req); } -/* - * We use BLK_MQ_F_BLOCKING and have only 1 hardware queue, which means requests - * will not be dispatched in parallel. - */ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, const struct blk_mq_queue_data *bd) { @@ -264,7 +260,7 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, spin_lock_irq(q->queue_lock); - if (mq->recovery_needed) { + if (mq->recovery_needed || mq->busy) { spin_unlock_irq(q->queue_lock); return BLK_STS_RESOURCE; } @@ -291,6 +287,9 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, break; } + /* Parallel dispatch of requests is not supported at the moment */ + mq->busy = true; + mq->in_flight[issue_type] += 1; get_card = (mmc_tot_in_flight(mq) == 1); cqe_retune_ok = (mmc_cqe_qcnt(mq) == 1); @@ -333,9 +332,12 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, mq->in_flight[issue_type] -= 1; if (mmc_tot_in_flight(mq) == 0) put_card = true; + mq->busy = false; spin_unlock_irq(q->queue_lock); if (put_card) mmc_put_card(card, &mq->ctx); + } else { + WRITE_ONCE(mq->busy, false); } return ret; diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h index 17e59d50b496..9bf3c9245075 100644 --- a/drivers/mmc/core/queue.h +++ b/drivers/mmc/core/queue.h @@ -81,6 +81,7 @@ struct mmc_queue { unsigned int cqe_busy; #define MMC_CQE_DCMD_BUSY BIT(0) #define MMC_CQE_QUEUE_FULL BIT(1) + bool busy; bool use_cqe; bool recovery_needed; bool in_recovery; diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c index d032bd63444d..4a7991151918 100644 --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -45,14 +45,16 @@ /* DM_CM_RST */ #define RST_DTRANRST1 BIT(9) #define RST_DTRANRST0 BIT(8) -#define RST_RESERVED_BITS GENMASK_ULL(32, 0) +#define RST_RESERVED_BITS GENMASK_ULL(31, 0) /* DM_CM_INFO1 and DM_CM_INFO1_MASK */ #define INFO1_CLEAR 0 +#define INFO1_MASK_CLEAR GENMASK_ULL(31, 0) #define INFO1_DTRANEND1 BIT(17) #define INFO1_DTRANEND0 BIT(16) /* DM_CM_INFO2 and DM_CM_INFO2_MASK */ +#define INFO2_MASK_CLEAR GENMASK_ULL(31, 0) #define INFO2_DTRANERR1 BIT(17) #define INFO2_DTRANERR0 BIT(16) @@ -236,6 +238,12 @@ renesas_sdhi_internal_dmac_request_dma(struct tmio_mmc_host *host, { struct renesas_sdhi *priv = host_to_priv(host); + /* Disable DMAC interrupts, we don't use them */ + renesas_sdhi_internal_dmac_dm_write(host, DM_CM_INFO1_MASK, + INFO1_MASK_CLEAR); + renesas_sdhi_internal_dmac_dm_write(host, DM_CM_INFO2_MASK, + INFO2_MASK_CLEAR); + /* Each value is set to non-zero to assume "enabling" each DMA */ host->chan_rx = host->chan_tx = (void *)0xdeadbeaf; diff --git a/drivers/net/wireless/marvell/libertas/dev.h b/drivers/net/wireless/marvell/libertas/dev.h index dd1ee1f0af48..469134930026 100644 --- a/drivers/net/wireless/marvell/libertas/dev.h +++ b/drivers/net/wireless/marvell/libertas/dev.h @@ -104,6 +104,7 @@ struct lbs_private { u8 fw_ready; u8 surpriseremoved; u8 setup_fw_on_resume; + u8 power_up_on_resume; int (*hw_host_to_card) (struct lbs_private *priv, u8 type, u8 *payload, u16 nb); void (*reset_card) (struct lbs_private *priv); int (*power_save) (struct lbs_private *priv); diff --git a/drivers/net/wireless/marvell/libertas/if_sdio.c b/drivers/net/wireless/marvell/libertas/if_sdio.c index 2300e796c6ab..43743c26c071 100644 --- a/drivers/net/wireless/marvell/libertas/if_sdio.c +++ b/drivers/net/wireless/marvell/libertas/if_sdio.c @@ -1290,15 +1290,23 @@ static void if_sdio_remove(struct sdio_func *func) static int if_sdio_suspend(struct device *dev) { struct sdio_func *func = dev_to_sdio_func(dev); - int ret; struct if_sdio_card *card = sdio_get_drvdata(func); + struct lbs_private *priv = card->priv; + int ret; mmc_pm_flag_t flags = sdio_get_host_pm_caps(func); + priv->power_up_on_resume = false; /* If we're powered off anyway, just let the mmc layer remove the * card. */ - if (!lbs_iface_active(card->priv)) - return -ENOSYS; + if (!lbs_iface_active(priv)) { + if (priv->fw_ready) { + priv->power_up_on_resume = true; + if_sdio_power_off(card); + } + + return 0; + } dev_info(dev, "%s: suspend: PM flags = 0x%x\n", sdio_func_id(func), flags); @@ -1306,9 +1314,14 @@ static int if_sdio_suspend(struct device *dev) /* If we aren't being asked to wake on anything, we should bail out * and let the SD stack power down the card. */ - if (card->priv->wol_criteria == EHS_REMOVE_WAKEUP) { + if (priv->wol_criteria == EHS_REMOVE_WAKEUP) { dev_info(dev, "Suspend without wake params -- powering down card\n"); - return -ENOSYS; + if (priv->fw_ready) { + priv->power_up_on_resume = true; + if_sdio_power_off(card); + } + + return 0; } if (!(flags & MMC_PM_KEEP_POWER)) { @@ -1321,7 +1334,7 @@ static int if_sdio_suspend(struct device *dev) if (ret) return ret; - ret = lbs_suspend(card->priv); + ret = lbs_suspend(priv); if (ret) return ret; @@ -1336,6 +1349,11 @@ static int if_sdio_resume(struct device *dev) dev_info(dev, "%s: resume: we're back\n", sdio_func_id(func)); + if (card->priv->power_up_on_resume) { + if_sdio_power_on(card); + wait_event(card->pwron_waitq, card->priv->fw_ready); + } + ret = lbs_resume(card->priv); return ret; diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index 27902a8799b1..8aae6dcc839f 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -812,9 +812,9 @@ u32 nd_cmd_out_size(struct nvdimm *nvdimm, int cmd, * overshoots the remainder by 4 bytes, assume it was * including 'status'. */ - if (out_field[1] - 8 == remainder) + if (out_field[1] - 4 == remainder) return remainder; - return out_field[1] - 4; + return out_field[1] - 8; } else if (cmd == ND_CMD_CALL) { struct nd_cmd_pkg *pkg = (struct nd_cmd_pkg *) in_field; diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c index 8d348b22ba45..863cabc35215 100644 --- a/drivers/nvdimm/dimm_devs.c +++ b/drivers/nvdimm/dimm_devs.c @@ -536,6 +536,37 @@ resource_size_t nd_blk_available_dpa(struct nd_region *nd_region) return info.available; } +/** + * nd_pmem_max_contiguous_dpa - For the given dimm+region, return the max + * contiguous unallocated dpa range. + * @nd_region: constrain available space check to this reference region + * @nd_mapping: container of dpa-resource-root + labels + */ +resource_size_t nd_pmem_max_contiguous_dpa(struct nd_region *nd_region, + struct nd_mapping *nd_mapping) +{ + struct nvdimm_drvdata *ndd = to_ndd(nd_mapping); + struct nvdimm_bus *nvdimm_bus; + resource_size_t max = 0; + struct resource *res; + + /* if a dimm is disabled the available capacity is zero */ + if (!ndd) + return 0; + + nvdimm_bus = walk_to_nvdimm_bus(ndd->dev); + if (__reserve_free_pmem(&nd_region->dev, nd_mapping->nvdimm)) + return 0; + for_each_dpa_resource(ndd, res) { + if (strcmp(res->name, "pmem-reserve") != 0) + continue; + if (resource_size(res) > max) + max = resource_size(res); + } + release_free_pmem(nvdimm_bus, nd_mapping); + return max; +} + /** * nd_pmem_available_dpa - for the given dimm+region account unallocated dpa * @nd_mapping: container of dpa-resource-root + labels diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 28afdd668905..4525d8ef6022 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -799,7 +799,7 @@ static int merge_dpa(struct nd_region *nd_region, return 0; } -static int __reserve_free_pmem(struct device *dev, void *data) +int __reserve_free_pmem(struct device *dev, void *data) { struct nvdimm *nvdimm = data; struct nd_region *nd_region; @@ -836,7 +836,7 @@ static int __reserve_free_pmem(struct device *dev, void *data) return 0; } -static void release_free_pmem(struct nvdimm_bus *nvdimm_bus, +void release_free_pmem(struct nvdimm_bus *nvdimm_bus, struct nd_mapping *nd_mapping) { struct nvdimm_drvdata *ndd = to_ndd(nd_mapping); @@ -1032,7 +1032,7 @@ static ssize_t __size_store(struct device *dev, unsigned long long val) allocated += nvdimm_allocated_dpa(ndd, &label_id); } - available = nd_region_available_dpa(nd_region); + available = nd_region_allocatable_dpa(nd_region); if (val > available + allocated) return -ENOSPC; diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h index 79274ead54fb..ac68072fb8cd 100644 --- a/drivers/nvdimm/nd-core.h +++ b/drivers/nvdimm/nd-core.h @@ -100,6 +100,14 @@ struct nd_region; struct nvdimm_drvdata; struct nd_mapping; void nd_mapping_free_labels(struct nd_mapping *nd_mapping); + +int __reserve_free_pmem(struct device *dev, void *data); +void release_free_pmem(struct nvdimm_bus *nvdimm_bus, + struct nd_mapping *nd_mapping); + +resource_size_t nd_pmem_max_contiguous_dpa(struct nd_region *nd_region, + struct nd_mapping *nd_mapping); +resource_size_t nd_region_allocatable_dpa(struct nd_region *nd_region); resource_size_t nd_pmem_available_dpa(struct nd_region *nd_region, struct nd_mapping *nd_mapping, resource_size_t *overlap); resource_size_t nd_blk_available_dpa(struct nd_region *nd_region); diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index ec3543b83330..c30d5af02cc2 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -389,6 +389,30 @@ resource_size_t nd_region_available_dpa(struct nd_region *nd_region) return available; } +resource_size_t nd_region_allocatable_dpa(struct nd_region *nd_region) +{ + resource_size_t available = 0; + int i; + + if (is_memory(&nd_region->dev)) + available = PHYS_ADDR_MAX; + + WARN_ON(!is_nvdimm_bus_locked(&nd_region->dev)); + for (i = 0; i < nd_region->ndr_mappings; i++) { + struct nd_mapping *nd_mapping = &nd_region->mapping[i]; + + if (is_memory(&nd_region->dev)) + available = min(available, + nd_pmem_max_contiguous_dpa(nd_region, + nd_mapping)); + else if (is_nd_blk(&nd_region->dev)) + available += nd_blk_available_dpa(nd_region); + } + if (is_memory(&nd_region->dev)) + return available * nd_region->ndr_mappings; + return available; +} + static ssize_t available_size_show(struct device *dev, struct device_attribute *attr, char *buf) { diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c index 665da3c8fbce..f45798679e3c 100644 --- a/drivers/pwm/pwm-omap-dmtimer.c +++ b/drivers/pwm/pwm-omap-dmtimer.c @@ -264,8 +264,9 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev) timer_pdata = dev_get_platdata(&timer_pdev->dev); if (!timer_pdata) { - dev_err(&pdev->dev, "dmtimer pdata structure NULL\n"); - ret = -EINVAL; + dev_dbg(&pdev->dev, + "dmtimer pdata structure NULL, deferring probe\n"); + ret = -EPROBE_DEFER; goto put; } diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c index 4c22cb395040..f7b8a86fa5c5 100644 --- a/drivers/pwm/pwm-tiehrpwm.c +++ b/drivers/pwm/pwm-tiehrpwm.c @@ -33,10 +33,6 @@ #define TBCTL 0x00 #define TBPRD 0x0A -#define TBCTL_RUN_MASK (BIT(15) | BIT(14)) -#define TBCTL_STOP_NEXT 0 -#define TBCTL_STOP_ON_CYCLE BIT(14) -#define TBCTL_FREE_RUN (BIT(15) | BIT(14)) #define TBCTL_PRDLD_MASK BIT(3) #define TBCTL_PRDLD_SHDW 0 #define TBCTL_PRDLD_IMDT BIT(3) @@ -360,7 +356,7 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) /* Channels polarity can be configured from action qualifier module */ configure_polarity(pc, pwm->hwpwm); - /* Enable TBCLK before enabling PWM device */ + /* Enable TBCLK */ ret = clk_enable(pc->tbclk); if (ret) { dev_err(chip->dev, "Failed to enable TBCLK for %s: %d\n", @@ -368,9 +364,6 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) return ret; } - /* Enable time counter for free_run */ - ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_RUN_MASK, TBCTL_FREE_RUN); - return 0; } @@ -388,6 +381,8 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) aqcsfrc_mask = AQCSFRC_CSFA_MASK; } + /* Update shadow register first before modifying active register */ + ehrpwm_modify(pc->mmio_base, AQCSFRC, aqcsfrc_mask, aqcsfrc_val); /* * Changes to immediate action on Action Qualifier. This puts * Action Qualifier control on PWM output from next TBCLK @@ -400,9 +395,6 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) /* Disabling TBCLK on PWM disable */ clk_disable(pc->tbclk); - /* Stop Time base counter */ - ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_RUN_MASK, TBCTL_STOP_NEXT); - /* Disable clock on PWM disable */ pm_runtime_put_sync(chip->dev); } diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index 39086398833e..6a7b804c3074 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -861,13 +861,6 @@ static int omap_rtc_probe(struct platform_device *pdev) goto err; } - if (rtc->is_pmic_controller) { - if (!pm_power_off) { - omap_rtc_power_off_rtc = rtc; - pm_power_off = omap_rtc_power_off; - } - } - /* Support ext_wakeup pinconf */ rtc_pinctrl_desc.name = dev_name(&pdev->dev); @@ -880,12 +873,21 @@ static int omap_rtc_probe(struct platform_device *pdev) ret = rtc_register_device(rtc->rtc); if (ret) - goto err; + goto err_deregister_pinctrl; rtc_nvmem_register(rtc->rtc, &omap_rtc_nvmem_config); + if (rtc->is_pmic_controller) { + if (!pm_power_off) { + omap_rtc_power_off_rtc = rtc; + pm_power_off = omap_rtc_power_off; + } + } + return 0; +err_deregister_pinctrl: + pinctrl_unregister(rtc->pctldev); err: clk_disable_unprepare(rtc->clk); device_init_wakeup(&pdev->dev, false); diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c index f3dad6fcdc35..a568f35522f9 100644 --- a/drivers/spi/spi-cadence.c +++ b/drivers/spi/spi-cadence.c @@ -319,7 +319,7 @@ static void cdns_spi_fill_tx_fifo(struct cdns_spi *xspi) */ if (cdns_spi_read(xspi, CDNS_SPI_ISR) & CDNS_SPI_IXR_TXFULL) - usleep_range(10, 20); + udelay(10); if (xspi->txbuf) cdns_spi_write(xspi, CDNS_SPI_TXD, *xspi->txbuf++); diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index 577084bb911b..a02099c90c5c 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -217,7 +217,7 @@ static void davinci_spi_chipselect(struct spi_device *spi, int value) pdata = &dspi->pdata; /* program delay transfers if tx_delay is non zero */ - if (spicfg->wdelay) + if (spicfg && spicfg->wdelay) spidat1 |= SPIDAT1_WDEL; /* diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 0630962ce442..f225f7c99a32 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -1029,30 +1029,30 @@ static int dspi_probe(struct platform_device *pdev) goto out_master_put; } + dspi->clk = devm_clk_get(&pdev->dev, "dspi"); + if (IS_ERR(dspi->clk)) { + ret = PTR_ERR(dspi->clk); + dev_err(&pdev->dev, "unable to get clock\n"); + goto out_master_put; + } + ret = clk_prepare_enable(dspi->clk); + if (ret) + goto out_master_put; + dspi_init(dspi); dspi->irq = platform_get_irq(pdev, 0); if (dspi->irq < 0) { dev_err(&pdev->dev, "can't get platform irq\n"); ret = dspi->irq; - goto out_master_put; + goto out_clk_put; } ret = devm_request_irq(&pdev->dev, dspi->irq, dspi_interrupt, 0, pdev->name, dspi); if (ret < 0) { dev_err(&pdev->dev, "Unable to attach DSPI interrupt\n"); - goto out_master_put; - } - - dspi->clk = devm_clk_get(&pdev->dev, "dspi"); - if (IS_ERR(dspi->clk)) { - ret = PTR_ERR(dspi->clk); - dev_err(&pdev->dev, "unable to get clock\n"); - goto out_master_put; + goto out_clk_put; } - ret = clk_prepare_enable(dspi->clk); - if (ret) - goto out_master_put; if (dspi->devtype_data->trans_mode == DSPI_DMA_MODE) { ret = dspi_request_dma(dspi, res->start); diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 0b2d60d30f69..14f4ea59caff 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1391,6 +1391,10 @@ static const struct pci_device_id pxa2xx_spi_pci_compound_match[] = { { PCI_VDEVICE(INTEL, 0x31c2), LPSS_BXT_SSP }, { PCI_VDEVICE(INTEL, 0x31c4), LPSS_BXT_SSP }, { PCI_VDEVICE(INTEL, 0x31c6), LPSS_BXT_SSP }, + /* ICL-LP */ + { PCI_VDEVICE(INTEL, 0x34aa), LPSS_CNL_SSP }, + { PCI_VDEVICE(INTEL, 0x34ab), LPSS_CNL_SSP }, + { PCI_VDEVICE(INTEL, 0x34fb), LPSS_CNL_SSP }, /* APL */ { PCI_VDEVICE(INTEL, 0x5ac2), LPSS_BXT_SSP }, { PCI_VDEVICE(INTEL, 0x5ac4), LPSS_BXT_SSP }, diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 9c14a453f73c..80bb56facfb6 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -182,6 +182,7 @@ static int uart_port_startup(struct tty_struct *tty, struct uart_state *state, { struct uart_port *uport = uart_port_check(state); unsigned long page; + unsigned long flags = 0; int retval = 0; if (uport->type == PORT_UNKNOWN) @@ -196,15 +197,18 @@ static int uart_port_startup(struct tty_struct *tty, struct uart_state *state, * Initialise and allocate the transmit and temporary * buffer. */ - if (!state->xmit.buf) { - /* This is protected by the per port mutex */ - page = get_zeroed_page(GFP_KERNEL); - if (!page) - return -ENOMEM; + page = get_zeroed_page(GFP_KERNEL); + if (!page) + return -ENOMEM; + uart_port_lock(state, flags); + if (!state->xmit.buf) { state->xmit.buf = (unsigned char *) page; uart_circ_clear(&state->xmit); + } else { + free_page(page); } + uart_port_unlock(uport, flags); retval = uport->ops->startup(uport); if (retval == 0) { @@ -263,6 +267,7 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state) { struct uart_port *uport = uart_port_check(state); struct tty_port *port = &state->port; + unsigned long flags = 0; /* * Set the TTY IO error marker @@ -295,10 +300,12 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state) /* * Free the transmit buffer page. */ + uart_port_lock(state, flags); if (state->xmit.buf) { free_page((unsigned long)state->xmit.buf); state->xmit.buf = NULL; } + uart_port_unlock(uport, flags); } /** diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index 609438d2465b..9ae2fb1344de 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1704,12 +1704,12 @@ static int do_register_framebuffer(struct fb_info *fb_info) return 0; } -static int do_unregister_framebuffer(struct fb_info *fb_info) +static int unbind_console(struct fb_info *fb_info) { struct fb_event event; - int i, ret = 0; + int ret; + int i = fb_info->node; - i = fb_info->node; if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info) return -EINVAL; @@ -1724,17 +1724,29 @@ static int do_unregister_framebuffer(struct fb_info *fb_info) unlock_fb_info(fb_info); console_unlock(); + return ret; +} + +static int __unlink_framebuffer(struct fb_info *fb_info); + +static int do_unregister_framebuffer(struct fb_info *fb_info) +{ + struct fb_event event; + int ret; + + ret = unbind_console(fb_info); + if (ret) return -EINVAL; pm_vt_switch_unregister(fb_info->dev); - unlink_framebuffer(fb_info); + __unlink_framebuffer(fb_info); if (fb_info->pixmap.addr && (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT)) kfree(fb_info->pixmap.addr); fb_destroy_modelist(&fb_info->modelist); - registered_fb[i] = NULL; + registered_fb[fb_info->node] = NULL; num_registered_fb--; fb_cleanup_device(fb_info); event.info = fb_info; @@ -1747,7 +1759,7 @@ static int do_unregister_framebuffer(struct fb_info *fb_info) return 0; } -int unlink_framebuffer(struct fb_info *fb_info) +static int __unlink_framebuffer(struct fb_info *fb_info) { int i; @@ -1759,6 +1771,20 @@ int unlink_framebuffer(struct fb_info *fb_info) device_destroy(fb_class, MKDEV(FB_MAJOR, i)); fb_info->dev = NULL; } + + return 0; +} + +int unlink_framebuffer(struct fb_info *fb_info) +{ + int ret; + + ret = __unlink_framebuffer(fb_info); + if (ret) + return ret; + + unbind_console(fb_info); + return 0; } EXPORT_SYMBOL(unlink_framebuffer); diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c index f365d4862015..862e8027acf6 100644 --- a/drivers/video/fbdev/udlfb.c +++ b/drivers/video/fbdev/udlfb.c @@ -27,6 +27,7 @@ #include #include #include +#include #include