diff options
215 files changed, 1114 insertions, 886 deletions
diff --git a/Documentation/admin-guide/pm/intel_pstate.rst b/Documentation/admin-guide/pm/intel_pstate.rst index 8b9164990956..8f1d3de449b5 100644 --- a/Documentation/admin-guide/pm/intel_pstate.rst +++ b/Documentation/admin-guide/pm/intel_pstate.rst @@ -324,8 +324,7 @@ Global Attributes ``intel_pstate`` exposes several global attributes (files) in ``sysfs`` to control its functionality at the system level. They are located in the -``/sys/devices/system/cpu/cpufreq/intel_pstate/`` directory and affect all -CPUs. +``/sys/devices/system/cpu/intel_pstate/`` directory and affect all CPUs. Some of them are not present if the ``intel_pstate=per_cpu_perf_limits`` argument is passed to the kernel in the command line. @@ -379,6 +378,17 @@ argument is passed to the kernel in the command line. but it affects the maximum possible value of per-policy P-state limits (see `Interpretation of Policy Attributes`_ below for details). +``hwp_dynamic_boost`` + This attribute is only present if ``intel_pstate`` works in the + `active mode with the HWP feature enabled <Active Mode With HWP_>`_ in + the processor. If set (equal to 1), it causes the minimum P-state limit + to be increased dynamically for a short time whenever a task previously + waiting on I/O is selected to run on a given logical CPU (the purpose + of this mechanism is to improve performance). + + This setting has no effect on logical CPUs whose minimum P-state limit + is directly set to the highest non-turbo P-state or above it. + .. _status_attr: ``status`` diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 2c391338c675..37bf0a9de75c 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -441,8 +441,6 @@ prototypes: int (*iterate) (struct file *, struct dir_context *); int (*iterate_shared) (struct file *, struct dir_context *); __poll_t (*poll) (struct file *, struct poll_table_struct *); - struct wait_queue_head * (*get_poll_head)(struct file *, __poll_t); - __poll_t (*poll_mask) (struct file *, __poll_t); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); @@ -473,7 +471,7 @@ prototypes: }; locking rules: - All except for ->poll_mask may block. + All may block. ->llseek() locking has moved from llseek to the individual llseek implementations. If your fs is not using generic_file_llseek, you @@ -505,9 +503,6 @@ in sys_read() and friends. the lease within the individual filesystem to record the result of the operation -->poll_mask can be called with or without the waitqueue lock for the waitqueue -returned from ->get_poll_head. - --------------------------- dquot_operations ------------------------------- prototypes: int (*write_dquot) (struct dquot *); diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 829a7b7857a4..f608180ad59d 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -857,8 +857,6 @@ struct file_operations { ssize_t (*write_iter) (struct kiocb *, struct iov_iter *); int (*iterate) (struct file *, struct dir_context *); __poll_t (*poll) (struct file *, struct poll_table_struct *); - struct wait_queue_head * (*get_poll_head)(struct file *, __poll_t); - __poll_t (*poll_mask) (struct file *, __poll_t); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); @@ -903,17 +901,6 @@ otherwise noted. activity on this file and (optionally) go to sleep until there is activity. Called by the select(2) and poll(2) system calls - get_poll_head: Returns the struct wait_queue_head that callers can - wait on. Callers need to check the returned events using ->poll_mask - once woken. Can return NULL to indicate polling is not supported, - or any error code using the ERR_PTR convention to indicate that a - grave error occured and ->poll_mask shall not be called. - - poll_mask: return the mask of EPOLL* values describing the file descriptor - state. Called either before going to sleep on the waitqueue returned by - get_poll_head, or after it has been woken. If ->get_poll_head and - ->poll_mask are implemented ->poll does not need to be implement. - unlocked_ioctl: called by the ioctl(2) system call. compat_ioctl: called by the ioctl(2) system call when 32 bit system calls diff --git a/Documentation/kbuild/kconfig-language.txt b/Documentation/kbuild/kconfig-language.txt index 3534a84d206c..64e0775a62d4 100644 --- a/Documentation/kbuild/kconfig-language.txt +++ b/Documentation/kbuild/kconfig-language.txt @@ -430,6 +430,12 @@ This sets the config program's title bar if the config program chooses to use it. It should be placed at the top of the configuration, before any other statement. +'#' Kconfig source file comment: + +An unquoted '#' character anywhere in a source file line indicates +the beginning of a source file comment. The remainder of that line +is a comment. + Kconfig hints ------------- diff --git a/MAINTAINERS b/MAINTAINERS index bfb8a18d4793..07d1576fc766 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11481,6 +11481,15 @@ W: http://wireless.kernel.org/en/users/Drivers/p54 S: Obsolete F: drivers/net/wireless/intersil/prism54/ +PROC FILESYSTEM +R: Alexey Dobriyan <adobriyan@gmail.com> +L: linux-kernel@vger.kernel.org +L: linux-fsdevel@vger.kernel.org +S: Maintained +F: fs/proc/ +F: include/linux/proc_fs.h +F: tools/testing/selftests/proc/ + PROC SYSCTL M: "Luis R. Rodriguez" <mcgrof@kernel.org> M: Kees Cook <keescook@chromium.org> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 54eeb8d00bc6..843edfd000be 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1245,8 +1245,14 @@ config PCI VESA. If you have PCI, say Y, otherwise N. config PCI_DOMAINS - bool + bool "Support for multiple PCI domains" depends on PCI + help + Enable PCI domains kernel management. Say Y if your machine + has a PCI bus hierarchy that requires more than one PCI + domain (aka segment) to be correctly managed. Say N otherwise. + + If you don't know what to do here, say N. config PCI_DOMAINS_GENERIC def_bool PCI_DOMAINS diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi index f6f1597b03df..0f4f817a9e22 100644 --- a/arch/arm/boot/dts/da850.dtsi +++ b/arch/arm/boot/dts/da850.dtsi @@ -549,11 +549,7 @@ gpio-controller; #gpio-cells = <2>; reg = <0x226000 0x1000>; - interrupts = <42 IRQ_TYPE_EDGE_BOTH - 43 IRQ_TYPE_EDGE_BOTH 44 IRQ_TYPE_EDGE_BOTH - 45 IRQ_TYPE_EDGE_BOTH 46 IRQ_TYPE_EDGE_BOTH - 47 IRQ_TYPE_EDGE_BOTH 48 IRQ_TYPE_EDGE_BOTH - 49 IRQ_TYPE_EDGE_BOTH 50 IRQ_TYPE_EDGE_BOTH>; + interrupts = <42 43 44 45 46 47 48 49 50>; ti,ngpio = <144>; ti,davinci-gpio-unbanked = <0>; status = "disabled"; diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig index c46a728df44e..25aac6ee2ab1 100644 --- a/arch/arm/mach-bcm/Kconfig +++ b/arch/arm/mach-bcm/Kconfig @@ -20,6 +20,7 @@ config ARCH_BCM_IPROC select GPIOLIB select ARM_AMBA select PINCTRL + select PCI_DOMAINS if PCI help This enables support for systems based on Broadcom IPROC architected SoCs. The IPROC complex contains one or more ARM CPUs along with common diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index e22fb40e34bc..6d5beb11bd96 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -774,7 +774,7 @@ static struct gpiod_lookup_table mmc_gpios_table = { GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_CD_PIN, "cd", GPIO_ACTIVE_LOW), GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_WP_PIN, "wp", - GPIO_ACTIVE_LOW), + GPIO_ACTIVE_HIGH), }, }; diff --git a/arch/arm/mach-socfpga/Kconfig b/arch/arm/mach-socfpga/Kconfig index d0f62eacf59d..4adb901dd5eb 100644 --- a/arch/arm/mach-socfpga/Kconfig +++ b/arch/arm/mach-socfpga/Kconfig @@ -10,6 +10,7 @@ menuconfig ARCH_SOCFPGA select HAVE_ARM_SCU select HAVE_ARM_TWD if SMP select MFD_SYSCON + select PCI_DOMAINS if PCI if ARCH_SOCFPGA config SOCFPGA_SUSPEND diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts index 4b3331fbfe39..dff9b15eb3c0 100644 --- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts +++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts @@ -66,9 +66,22 @@ ðmac { status = "okay"; - phy-mode = "rgmii"; pinctrl-0 = <ð_rgmii_y_pins>; pinctrl-names = "default"; + phy-handle = <ð_phy0>; + phy-mode = "rgmii"; + + mdio { + compatible = "snps,dwmac-mdio"; + #address-cells = <1>; + #size-cells = <0>; + + eth_phy0: ethernet-phy@0 { + /* Realtek RTL8211F (0x001cc916) */ + reg = <0>; + eee-broken-1000t; + }; + }; }; &uart_A { diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi index fee87737a201..67d7115e4eff 100644 --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi @@ -132,7 +132,7 @@ sd_emmc_b: sd@5000 { compatible = "amlogic,meson-axg-mmc"; - reg = <0x0 0x5000 0x0 0x2000>; + reg = <0x0 0x5000 0x0 0x800>; interrupts = <GIC_SPI 217 IRQ_TYPE_EDGE_RISING>; status = "disabled"; clocks = <&clkc CLKID_SD_EMMC_B>, @@ -144,7 +144,7 @@ sd_emmc_c: mmc@7000 { compatible = "amlogic,meson-axg-mmc"; - reg = <0x0 0x7000 0x0 0x2000>; + reg = <0x0 0x7000 0x0 0x800>; interrupts = <GIC_SPI 218 IRQ_TYPE_EDGE_RISING>; status = "disabled"; clocks = <&clkc CLKID_SD_EMMC_C>, diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi index 3c31e21cbed7..b8dc4dbb391b 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi @@ -35,6 +35,12 @@ no-map; }; + /* Alternate 3 MiB reserved for ARM Trusted Firmware (BL31) */ + secmon_reserved_alt: secmon@5000000 { + reg = <0x0 0x05000000 0x0 0x300000>; + no-map; + }; + linux,cma { compatible = "shared-dma-pool"; reusable; @@ -457,21 +463,21 @@ sd_emmc_a: mmc@70000 { compatible = "amlogic,meson-gx-mmc", "amlogic,meson-gxbb-mmc"; - reg = <0x0 0x70000 0x0 0x2000>; + reg = <0x0 0x70000 0x0 0x800>; interrupts = <GIC_SPI 216 IRQ_TYPE_EDGE_RISING>; status = "disabled"; }; sd_emmc_b: mmc@72000 { compatible = "amlogic,meson-gx-mmc", "amlogic,meson-gxbb-mmc"; - reg = <0x0 0x72000 0x0 0x2000>; + reg = <0x0 0x72000 0x0 0x800>; interrupts = <GIC_SPI 217 IRQ_TYPE_EDGE_RISING>; status = "disabled"; }; sd_emmc_c: mmc@74000 { compatible = "amlogic,meson-gx-mmc", "amlogic,meson-gxbb-mmc"; - reg = <0x0 0x74000 0x0 0x2000>; + reg = <0x0 0x74000 0x0 0x800>; interrupts = <GIC_SPI 218 IRQ_TYPE_EDGE_RISING>; status = "disabled"; }; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-mali.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl-mali.dtsi index eb327664a4d8..6aaafff674f9 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl-mali.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-mali.dtsi @@ -6,7 +6,7 @@ &apb { mali: gpu@c0000 { - compatible = "amlogic,meson-gxbb-mali", "arm,mali-450"; + compatible = "amlogic,meson-gxl-mali", "arm,mali-450"; reg = <0x0 0xc0000 0x0 0x40000>; interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>, diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts index 3e3eb31748a3..f63bceb88caa 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts @@ -234,9 +234,6 @@ bus-width = <4>; cap-sd-highspeed; - sd-uhs-sdr12; - sd-uhs-sdr25; - sd-uhs-sdr50; max-frequency = <100000000>; disable-wp; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi index 0cfd701809de..a1b31013ab6e 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi @@ -189,3 +189,10 @@ &usb0 { status = "okay"; }; + +&usb2_phy0 { + /* + * HDMI_5V is also used as supply for the USB VBUS. + */ + phy-supply = <&hdmi_5v>; +}; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi index 27538eea547b..c87a80e9bcc6 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi @@ -13,14 +13,6 @@ / { compatible = "amlogic,meson-gxl"; - reserved-memory { - /* Alternate 3 MiB reserved for ARM Trusted Firmware (BL31) */ - secmon_reserved_alt: secmon@5000000 { - reg = <0x0 0x05000000 0x0 0x300000>; - no-map; - }; - }; - soc { usb0: usb@c9000000 { status = "disabled"; diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts index c6999624ed8a..68c5a6c819ae 100644 --- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts +++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts @@ -585,6 +585,8 @@ vmmc-supply = <&wlan_en>; ti,non-removable; non-removable; + cap-power-off-card; + keep-power-in-suspend; #address-cells = <0x1>; #size-cells = <0x0>; status = "ok"; diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts index edb4ee0b8896..7f12624f6c8e 100644 --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts @@ -322,6 +322,8 @@ dwmmc_2: dwmmc2@f723f000 { bus-width = <0x4>; non-removable; + cap-power-off-card; + keep-power-in-suspend; vmmc-supply = <®_vdd_3v3>; mmc-pwrseq = <&wl1835_pwrseq>; diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h index a91933b1e2e6..4b650ec1d7dd 100644 --- a/arch/arm64/include/asm/alternative.h +++ b/arch/arm64/include/asm/alternative.h @@ -28,7 +28,12 @@ typedef void (*alternative_cb_t)(struct alt_instr *alt, __le32 *origptr, __le32 *updptr, int nr_inst); void __init apply_alternatives_all(void); -void apply_alternatives(void *start, size_t length); + +#ifdef CONFIG_MODULES +void apply_alternatives_module(void *start, size_t length); +#else +static inline void apply_alternatives_module(void *start, size_t length) { } +#endif #define ALTINSTR_ENTRY(feature,cb) \ " .word 661b - .\n" /* label */ \ diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 9f82d6b53851..1bdeca8918a6 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -224,10 +224,8 @@ static inline void set_pte(pte_t *ptep, pte_t pte) * Only if the new pte is valid and kernel, otherwise TLB maintenance * or update_mmu_cache() have the necessary barriers. */ - if (pte_valid_not_user(pte)) { + if (pte_valid_not_user(pte)) dsb(ishst); - isb(); - } } extern void __sync_icache_dcache(pte_t pteval); @@ -434,7 +432,6 @@ static inline void set_pmd(pmd_t *pmdp, pmd_t pmd) { WRITE_ONCE(*pmdp, pmd); dsb(ishst); - isb(); } static inline void pmd_clear(pmd_t *pmdp) @@ -485,7 +482,6 @@ static inline void set_pud(pud_t *pudp, pud_t pud) { WRITE_ONCE(*pudp, pud); dsb(ishst); - isb(); } static inline void pud_clear(pud_t *pudp) diff --git a/arch/arm64/kernel/alternative.c b/arch/arm64/kernel/alternative.c index 5c4bce4ac381..36fb069fd049 100644 --- a/arch/arm64/kernel/alternative.c +++ b/arch/arm64/kernel/alternative.c @@ -122,7 +122,30 @@ static void patch_alternative(struct alt_instr *alt, } } -static void __apply_alternatives(void *alt_region, bool use_linear_alias) +/* + * We provide our own, private D-cache cleaning function so that we don't + * accidentally call into the cache.S code, which is patched by us at + * runtime. + */ +static void clean_dcache_range_nopatch(u64 start, u64 end) +{ + u64 cur, d_size, ctr_el0; + + ctr_el0 = read_sanitised_ftr_reg(SYS_CTR_EL0); + d_size = 4 << cpuid_feature_extract_unsigned_field(ctr_el0, + CTR_DMINLINE_SHIFT); + cur = start & ~(d_size - 1); + do { + /* + * We must clean+invalidate to the PoC in order to avoid + * Cortex-A53 errata 826319, 827319, 824069 and 819472 + * (this corresponds to ARM64_WORKAROUND_CLEAN_CACHE) + */ + asm volatile("dc civac, %0" : : "r" (cur) : "memory"); + } while (cur += d_size, cur < end); +} + +static void __apply_alternatives(void *alt_region, bool is_module) { struct alt_instr *alt; struct alt_region *region = alt_region; @@ -145,7 +168,7 @@ static void __apply_alternatives(void *alt_region, bool use_linear_alias) pr_info_once("patching kernel code\n"); origptr = ALT_ORIG_PTR(alt); - updptr = use_linear_alias ? lm_alias(origptr) : origptr; + updptr = is_module ? origptr : lm_alias(origptr); nr_inst = alt->orig_len / AARCH64_INSN_SIZE; if (alt->cpufeature < ARM64_CB_PATCH) @@ -155,8 +178,20 @@ static void __apply_alternatives(void *alt_region, bool use_linear_alias) alt_cb(alt, origptr, updptr, nr_inst); - flush_icache_range((uintptr_t)origptr, - (uintptr_t)(origptr + nr_inst)); + if (!is_module) { + clean_dcache_range_nopatch((u64)origptr, + (u64)(origptr + nr_inst)); + } + } + + /* + * The core module code takes care of cache maintenance in + * flush_module_icache(). + */ + if (!is_module) { + dsb(ish); + __flush_icache_all(); + isb(); } } @@ -178,7 +213,7 @@ static int __apply_alternatives_multi_stop(void *unused) isb(); } else { BUG_ON(alternatives_applied); - __apply_alternatives(®ion, true); + __apply_alternatives(®ion, false); /* Barriers provided by the cache flushing */ WRITE_ONCE(alternatives_applied, 1); } @@ -192,12 +227,14 @@ void __init apply_alternatives_all(void) stop_machine(__apply_alternatives_multi_stop, NULL, cpu_online_mask); } -void apply_alternatives(void *start, size_t length) +#ifdef CONFIG_MODULES +void apply_alternatives_module(void *start, size_t length) { struct alt_region region = { .begin = start, .end = start + length, }; - __apply_alternatives(®ion, false); + __apply_alternatives(®ion, true); } +#endif diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c index 155fd91e78f4..f0f27aeefb73 100644 --- a/arch/arm64/kernel/module.c +++ b/arch/arm64/kernel/module.c @@ -448,9 +448,8 @@ int module_finalize(const Elf_Ehdr *hdr, const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) { - if (strcmp(".altinstructions", secstrs + s->sh_name) == 0) { - apply_alternatives((void *)s->sh_addr, s->sh_size); - } + if (strcmp(".altinstructions", secstrs + s->sh_name) == 0) + apply_alternatives_module((void *)s->sh_addr, s->sh_size); #ifdef CONFIG_ARM64_MODULE_PLTS if (IS_ENABLED(CONFIG_DYNAMIC_FTRACE) && !strcmp(".text.ftrace_trampoline", secstrs + s->sh_name)) diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h index e4633803fe43..82e44b1a00ae 100644 --- a/arch/powerpc/include/asm/book3s/32/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h @@ -138,7 +138,6 @@ static inline void pgtable_free_tlb(struct mmu_gather *tlb, static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { - pgtable_page_dtor(table); pgtable_free_tlb(tlb, page_address(table), 0); } #endif /* _ASM_POWERPC_BOOK3S_32_PGALLOC_H */ diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h index 9de40eb614da..8825953c225b 100644 --- a/arch/powerpc/include/asm/nohash/32/pgalloc.h +++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h @@ -140,7 +140,6 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { tlb_flush_pgtable(tlb, address); - pgtable_page_dtor(table); pgtable_free_tlb(tlb, page_address(table), 0); } #endif /* _ASM_POWERPC_PGALLOC_32_H */ diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index cfcf6a874cfa..01b5171ea189 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -393,3 +393,4 @@ SYSCALL(pkey_alloc) SYSCALL(pkey_free) SYSCALL(pkey_mprotect) SYSCALL(rseq) +COMPAT_SYS(io_pgetevents) diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index 1e9708632dce..c19379f0a32e 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -12,7 +12,7 @@ #include <uapi/asm/unistd.h> -#define NR_syscalls 388 +#define NR_syscalls 389 #define __NR__exit __NR_exit diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h index ac5ba55066dd..985534d0b448 100644 --- a/arch/powerpc/include/uapi/asm/unistd.h +++ b/arch/powerpc/include/uapi/asm/unistd.h @@ -399,5 +399,6 @@ #define __NR_pkey_free 385 #define __NR_pkey_mprotect 386 #define __NR_rseq 387 +#define __NR_io_pgetevents 388 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */ diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 4f861055a852..d63b488d34d7 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -285,9 +285,6 @@ pci_bus_to_hose(int bus) * Note that the returned IO or memory base is a physical address */ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus, unsigned long, devfn) { @@ -313,4 +310,3 @@ SYSCALL_DEFINE3(pciconfig_iobase, long, which, return result; } -#pragma GCC diagnostic pop diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 812171c09f42..dff28f903512 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -203,9 +203,6 @@ void pcibios_setup_phb_io_space(struct pci_controller *hose) #define IOBASE_ISA_IO 3 #define IOBASE_ISA_MEM 4 -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, in_bus, unsigned long, in_devfn) { @@ -259,7 +256,6 @@ SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, in_bus, return -EOPNOTSUPP; } -#pragma GCC diagnostic pop #ifdef CONFIG_NUMA int pcibus_to_node(struct pci_bus *bus) diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 7fb9f83dcde8..8afd146bc9c7 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -1051,9 +1051,6 @@ struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log, } /* We assume to be passed big endian arguments */ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) { struct rtas_args args; @@ -1140,7 +1137,6 @@ SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) return 0; } -#pragma GCC diagnostic pop /* * Call early during boot, before mem init, to retrieve the RTAS diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 5eedbb282d42..e6474a45cef5 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -1038,9 +1038,6 @@ static int do_setcontext_tm(struct ucontext __user *ucp, } #endif -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" #ifdef CONFIG_PPC64 COMPAT_SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, struct ucontext __user *, new_ctx, int, ctx_size) @@ -1134,7 +1131,6 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, set_thread_flag(TIF_RESTOREALL); return 0; } -#pragma GCC diagnostic pop #ifdef CONFIG_PPC64 COMPAT_SYSCALL_DEFINE0(rt_sigreturn) @@ -1231,9 +1227,6 @@ SYSCALL_DEFINE0(rt_sigreturn) return 0; } -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" #ifdef CONFIG_PPC32 SYSCALL_DEFINE3(debug_setcontext, struct ucontext __user *, ctx, int, ndbg, struct sig_dbg_op __user *, dbg) @@ -1337,7 +1330,6 @@ SYSCALL_DEFINE3(debug_setcontext, struct ucontext __user *, ctx, return 0; } #endif -#pragma GCC diagnostic pop /* * OK, we're invoking a handler diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index d42b60020389..83d51bf586c7 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -625,9 +625,6 @@ static long setup_trampoline(unsigned int syscall, unsigned int __user *tramp) /* * Handle {get,set,swap}_context operations */ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, struct ucontext __user *, new_ctx, long, ctx_size) { @@ -693,7 +690,6 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, set_thread_flag(TIF_RESTOREALL); return 0; } -#pragma GCC diagnostic pop /* diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c index 083fa06962fd..466216506eb2 100644 --- a/arch/powerpc/kernel/syscalls.c +++ b/arch/powerpc/kernel/syscalls.c @@ -62,9 +62,6 @@ out: return ret; } -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len, unsigned long, prot, unsigned long, flags, unsigned long, fd, unsigned long, pgoff) @@ -78,7 +75,6 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len, { return do_mmap2(addr, len, prot, flags, fd, offset, PAGE_SHIFT); } -#pragma GCC diagnostic pop #ifdef CONFIG_PPC32 /* diff --git a/arch/powerpc/mm/subpage-prot.c b/arch/powerpc/mm/subpage-prot.c index 75cb646a79c3..9d16ee251fc0 100644 --- a/arch/powerpc/mm/subpage-prot.c +++ b/arch/powerpc/mm/subpage-prot.c @@ -186,9 +186,6 @@ static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr, * in a 2-bit field won't allow writes to a page that is otherwise * write-protected. */ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, unsigned long, len, u32 __user *, map) { @@ -272,4 +269,3 @@ SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, up_write(&mm->mmap_sem); return err; } -#pragma GCC diagnostic pop diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c index 7c968e46736f..12e6e4d30602 100644 --- a/arch/powerpc/platforms/powermac/time.c +++ b/arch/powerpc/platforms/powermac/time.c @@ -42,7 +42,11 @@ #define DBG(x...) #endif -/* Apparently the RTC stores seconds since 1 Jan 1904 */ +/* + * Offset between Unix time (1970-based) and Mac time (1904-based). Cuda and PMU + * times wrap in 2040. If we need to handle later times, the read_time functions + * need to be changed to interpret wrapped times as post-2040. + */ #define RTC_OFFSET 2082844800 /* @@ -97,8 +101,11 @@ static time64_t cuda_get_time(void) if (req.reply_len != 7) printk(KERN_ERR "cuda_get_time: got %d byte reply\n", req.reply_len); - now = (req.reply[3] << 24) + (req.reply[4] << 16) - + (req.reply[5] << 8) + req.reply[6]; + now = (u32)((req.reply[3] << 24) + (req.reply[4] << 16) + + (req.reply[5] << 8) + req.reply[6]); + /* it's either after year 2040, or the RTC has gone backwards */ + WARN_ON(now < RTC_OFFSET); + return now - RTC_OFFSET; } @@ -106,10 +113,10 @@ static time64_t cuda_get_time(void) static int cuda_set_rtc_time(struct rtc_time *tm) { - time64_t nowtime; + u32 nowtime; struct adb_request req; - nowtime = rtc_tm_to_time64(tm) + RTC_OFFSET; + nowtime = lower_32_bits(rtc_tm_to_time64(tm) + RTC_OFFSET); if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME, nowtime >> 24, nowtime >> 16, nowtime >> 8, nowtime) < 0) @@ -140,8 +147,12 @@ static time64_t pmu_get_time(void) if (req.reply_len != 4) printk(KERN_ERR "pmu_get_time: got %d byte reply from PMU\n", req.reply_len); - now = (req.reply[0] << 24) + (req.reply[1] << 16) - + (req.reply[2] << 8) + req.reply[3]; + now = (u32)((req.reply[0] << 24) + (req.reply[1] << 16) + + (req.reply[2] << 8) + req.reply[3]); + + /* it's either after year 2040, or the RTC has gone backwards */ + WARN_ON(now < RTC_OFFSET); + return now - RTC_OFFSET; } @@ -149,10 +160,10 @@ static time64_t pmu_get_time(void) static int pmu_set_rtc_time(struct rtc_time *tm) { - time64_t nowtime; + u32 nowtime; struct adb_request req; - nowtime = rtc_tm_to_time64(tm) + RTC_OFFSET; + nowtime = lower_32_bits(rtc_tm_to_time64(tm) + RTC_OFFSET); if (pmu_request(&req, NULL, 5, PMU_SET_RTC, nowtime >> 24, nowtime >> 16, nowtime >> 8, nowtime) < 0) return -ENXIO; diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 2582881d19ce..c371bfee137a 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -477,7 +477,7 @@ ENTRY(entry_SYSENTER_32) * whereas POPF does not.) */ addl $PT_EFLAGS-PT_DS, %esp /* point esp at pt_regs->flags */ - btr $X86_EFLAGS_IF_BIT, (%esp) + btrl $X86_EFLAGS_IF_BIT, (%esp) popfl /* diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S index 9de7f1e1dede..7d0df78db727 100644 --- a/arch/x86/entry/entry_64_compat.S +++ b/arch/x86/entry/entry_64_compat.S @@ -84,13 +84,13 @@ ENTRY(entry_SYSENTER_compat) pushq %rdx /* pt_regs->dx */ pushq %rcx /* pt_regs->cx */ pushq $-ENOSYS /* pt_regs->ax */ - pushq %r8 /* pt_regs->r8 */ + pushq $0 /* pt_regs->r8 = 0 */ xorl %r8d, %r8d /* nospec r8 */ - pushq %r9 /* pt_regs->r9 */ + pushq $0 /* pt_regs->r9 = 0 */ xorl %r9d, %r9d /* nospec r9 */ - pushq %r10 /* pt_regs->r10 */ + pushq $0 /* pt_regs->r10 = 0 */ xorl %r10d, %r10d /* nospec r10 */ - pushq %r11 /* pt_regs->r11 */ + pushq $0 /* pt_regs->r11 = 0 */ xorl %r11d, %r11d /* nospec r11 */ pushq %rbx /* pt_regs->rbx */ xorl %ebx, %ebx /* nospec rbx */ @@ -374,13 +374,13 @@ ENTRY(entry_INT80_compat) pushq %rcx /* pt_regs->cx */ xorl %ecx, %ecx /* nospec cx */ pushq $-ENOSYS /* pt_regs->ax */ - pushq $0 /* pt_regs->r8 = 0 */ + pushq %r8 /* pt_regs->r8 */ xorl %r8d, %r8d /* nospec r8 */ - pushq $0 /* pt_regs->r9 = 0 */ + pushq %r9 /* pt_regs->r9 */ xorl %r9d, %r9d /* nospec r9 */ - pushq $0 /* pt_regs->r10 = 0 */ + pushq %r10 /* pt_regs->r10*/ xorl %r10d, %r10d /* nospec r10 */ - pushq $0 /* pt_regs->r11 = 0 */ + pushq %r11 /* pt_regs->r11 */ xorl %r11d, %r11d /* nospec r11 */ pushq %rbx /* pt_regs->rbx */ xorl %ebx, %ebx /* nospec rbx */ diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h index ada6410fd2ec..fbd578daa66e 100644 --- a/arch/x86/include/asm/pgalloc.h +++ b/arch/x86/include/asm/pgalloc.h @@ -184,6 +184,9 @@ static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long addr) static inline void p4d_free(struct mm_struct *mm, p4d_t *p4d) { + if (!pgtable_l5_enabled()) + return; + BUG_ON((unsigned long)p4d & (PAGE_SIZE-1)); free_page((unsigned long)p4d); } diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 99ecde23c3ec..5715647fc4fe 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -898,7 +898,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd) #define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd)) /* to find an entry in a page-table-directory. */ -static __always_inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address) +static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address) { if (!pgtable_l5_enabled()) return (p4d_t *)pgd; diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h index 0fdcd21dadbd..3c5385f9a88f 100644 --- a/arch/x86/include/asm/pgtable_64.h +++ b/arch/x86/include/asm/pgtable_64.h @@ -216,7 +216,7 @@ static inline pgd_t pti_set_user_pgd(pgd_t *pgdp, pgd_t pgd) } #endif -static __always_inline void native_set_p4d(p4d_t *p4dp, p4d_t p4d) +static inline void native_set_p4d(p4d_t *p4dp, p4d_t p4d) { pgd_t pgd; @@ -230,7 +230,7 @@ static __always_inline void native_set_p4d(p4d_t *p4dp, p4d_t p4d) *p4dp = native_make_p4d(native_pgd_val(pgd)); } -static __always_inline void native_p4d_clear(p4d_t *p4d) +static inline void native_p4d_clear(p4d_t *p4d) { native_set_p4d(p4d, native_make_p4d(0)); } diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index d1f25c831447..c88c23c658c1 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1248,6 +1248,7 @@ void __init e820__memblock_setup(void) { int i; u64 end; + u64 addr = 0; /* * The bootstrap memblock region count maximum is 128 entries @@ -1264,13 +1265,21 @@ void __init e820__memblock_setup(void) struct e820_entry *entry = &e820_table->entries[i]; end = entry->addr + entry->size; + if (addr < entry->addr) + memblock_reserve(addr, entry->addr - addr); + addr = end; if (end != (resource_size_t)end) continue; + /* + * all !E820_TYPE_RAM ranges (including gap ranges) are put + * into memblock.reserved to make sure that struct pages in + * such regions are not left uninitialized after bootup. + */ if (entry->type != E820_TYPE_RAM && entry->type != E820_TYPE_RESERVED_KERN) - continue; - - memblock_add(entry->addr, entry->size); + memblock_reserve(entry->addr, entry->size); + else + memblock_add(entry->addr, entry->size); } /* Throw away partial pages: */ diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 9a84a0d08727..2aafa6ab6103 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -641,11 +641,6 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address) return 0; } -static const char nx_warning[] = KERN_CRIT -"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n"; -static const char smep_warning[] = KERN_CRIT -"unable to execute userspace code (SMEP?) (uid: %d)\n"; - static void show_fault_oops(struct pt_regs *regs, unsigned long error_code, unsigned long address) @@ -664,20 +659,18 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code, pte = lookup_address_in_pgd(pgd, address, &level); if (pte && pte_present(*pte) && !pte_exec(*pte)) - printk(nx_warning, from_kuid(&init_user_ns, current_uid())); + pr_crit("kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n", + from_kuid(&init_user_ns, current_uid())); if (pte && pte_present(*pte) && pte_exec(*pte) && (pgd_flags(*pgd) & _PAGE_USER) && (__read_cr4() & X86_CR4_SMEP)) - printk(smep_warning, from_kuid(&init_user_ns, current_uid())); + pr_crit("unable to execute userspace code (SMEP?) (uid: %d)\n", + from_kuid(&init_user_ns, current_uid())); } - printk(KERN_ALERT "BUG: unable to handle kernel "); - if (address < PAGE_SIZE) - printk(KERN_CONT "NULL pointer dereference"); - else - printk(KERN_CONT "paging request"); - - printk(KERN_CONT " at %px\n", (void *) address); + pr_alert("BUG: unable to handle kernel %s at %px\n", + address < PAGE_SIZE ? "NULL pointer dereference" : "paging request", + (void *)address); dump_pagetable(address); } diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index e01f7ceb9e7a..77873ce700ae 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -166,14 +166,14 @@ void __init efi_call_phys_epilog(pgd_t *save_pgd) pgd = pgd_offset_k(pgd_idx * PGDIR_SIZE); set_pgd(pgd_offset_k(pgd_idx * PGDIR_SIZE), save_pgd[pgd_idx]); - if (!(pgd_val(*pgd) & _PAGE_PRESENT)) + if (!pgd_present(*pgd)) continue; for (i = 0; i < PTRS_PER_P4D; i++) { p4d = p4d_offset(pgd, pgd_idx * PGDIR_SIZE + i * P4D_SIZE); - if (!(p4d_val(*p4d) & _PAGE_PRESENT)) + if (!p4d_present(*p4d)) continue; pud = (pud_t *)p4d_page_vaddr(*p4d); diff --git a/block/blk-core.c b/block/blk-core.c index afd2596ea3d3..f84a9b7b6f5a 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -3473,6 +3473,10 @@ static void __blk_rq_prep_clone(struct request *dst, struct request *src) dst->cpu = src->cpu; dst->__sector = blk_rq_pos(src); dst->__data_len = blk_rq_bytes(src); + if (src->rq_flags & RQF_SPECIAL_PAYLOAD) { + dst->rq_flags |= RQF_SPECIAL_PAYLOAD; + dst->special_vec = src->special_vec; + } dst->nr_phys_segments = src->nr_phys_segments; dst->ioprio = src->ioprio; dst->extra_len = src->extra_len; diff --git a/block/blk-mq.c b/block/blk-mq.c index b429d515b568..95919268564b 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1075,6 +1075,9 @@ static bool blk_mq_mark_tag_wait(struct blk_mq_hw_ctx **hctx, #define BLK_MQ_RESOURCE_DELAY 3 /* ms units */ +/* + * Returns true if we did some work AND can potentially do more. + */ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list, bool got_budget) { @@ -1205,8 +1208,17 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list, blk_mq_run_hw_queue(hctx, true); else if (needs_restart && (ret == BLK_STS_RESOURCE)) blk_mq_delay_run_hw_queue(hctx, BLK_MQ_RESOURCE_DELAY); + + return false; } + /* + * If the host/device is unable to accept more work, inform the + * caller of that. + */ + if (ret == BLK_STS_RESOURCE || ret == BLK_STS_DEV_RESOURCE) + return false; + return (queued + errors) != 0; } diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 49fa8582138b..314c52c967e5 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -1060,12 +1060,19 @@ void af_alg_async_cb(struct crypto_async_request *_req, int err) } EXPORT_SYMBOL_GPL(af_alg_async_cb); -__poll_t af_alg_poll_mask(struct socket *sock, __poll_t events) +/** + * af_alg_poll - poll system call handler + */ +__poll_t af_alg_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; struct alg_sock *ask = alg_sk(sk); struct af_alg_ctx *ctx = ask->private; - __poll_t mask = 0; + __poll_t mask; + + sock_poll_wait(file, sk_sleep(sk), wait); + mask = 0; if (!ctx->more || ctx->used) mask |= EPOLLIN | EPOLLRDNORM; @@ -1075,7 +1082,7 @@ __poll_t af_alg_poll_mask(struct socket *sock, __poll_t events) return mask; } -EXPORT_SYMBOL_GPL(af_alg_poll_mask); +EXPORT_SYMBOL_GPL(af_alg_poll); /** * af_alg_alloc_areq - allocate struct af_alg_async_req diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index 825524f27438..c40a8c7ee8ae 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -375,7 +375,7 @@ static struct proto_ops algif_aead_ops = { .sendmsg = aead_sendmsg, .sendpage = af_alg_sendpage, .recvmsg = aead_recvmsg, - .poll_mask = af_alg_poll_mask, + .poll = af_alg_poll, }; static int aead_check_key(struct socket *sock) @@ -471,7 +471,7 @@ static struct proto_ops algif_aead_ops_nokey = { .sendmsg = aead_sendmsg_nokey, .sendpage = aead_sendpage_nokey, .recvmsg = aead_recvmsg_nokey, - .poll_mask = af_alg_poll_mask, + .poll = af_alg_poll, }; static void *aead_bind(const char *name, u32 type, u32 mask) diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index 4c04eb9888ad..cfdaab2b7d76 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -206,7 +206,7 @@ static struct proto_ops algif_skcipher_ops = { .sendmsg = skcipher_sendmsg, .sendpage = af_alg_sendpage, .recvmsg = skcipher_recvmsg, - .poll_mask = af_alg_poll_mask, + .poll = af_alg_poll, }; static int skcipher_check_key(struct socket *sock) @@ -302,7 +302,7 @@ static struct proto_ops algif_skcipher_ops_nokey = { .sendmsg = skcipher_sendmsg_nokey, .sendpage = skcipher_sendpage_nokey, .recvmsg = skcipher_recvmsg_nokey, - .poll_mask = af_alg_poll_mask, + .poll = af_alg_poll, }; static void *skcipher_bind(const char *name, u32 type, u32 mask) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 4925af5c4cf0..c298de8a8308 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2487,10 +2487,9 @@ EXPORT_SYMBOL_GPL(of_genpd_parse_idle_states); * power domain corresponding to a DT node's "required-opps" property. * * @dev: Device for which the performance-state needs to be found. - * @opp_node: DT node where the "required-opps" property is present. This can be + * @np: DT node where the "required-opps" property is present. This can be * the device node itself (if it doesn't have an OPP table) or a node * within the OPP table of a device (if device has an OPP table). - * @state: Pointer to return performance state. * * Returns performance state corresponding to the "required-opps" property of * a DT node. This calls platform specific genpd->opp_to_performance_state() @@ -2499,7 +2498,7 @@ EXPORT_SYMBOL_GPL(of_genpd_parse_idle_states); * Returns performance state on success and 0 on failure. */ unsigned int of_genpd_opp_to_performance_state(struct device *dev, - struct device_node *opp_node) + struct device_node *np) { struct generic_pm_domain *genpd; struct dev_pm_opp *opp; @@ -2514,7 +2513,7 @@ unsigned int of_genpd_opp_to_performance_state(struct device *dev, genpd_lock(genpd); - opp = of_dev_pm_opp_find_required_opp(&genpd->dev, opp_node); + opp = of_dev_pm_opp_find_required_opp(&genpd->dev, np); if (IS_ERR(opp)) { dev_err(dev, "Failed to find required OPP: %ld\n", PTR_ERR(opp)); diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index a47e4987ee46..d146fedc38bb 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1244,8 +1244,8 @@ drbd_request_prepare(struct drbd_device *device, struct bio *bio, unsigned long _drbd_start_io_acct(device, req); /* process discards always from our submitter thread */ - if ((bio_op(bio) & REQ_OP_WRITE_ZEROES) || - (bio_op(bio) & REQ_OP_DISCARD)) + if (bio_op(bio) == REQ_OP_WRITE_ZEROES || + bio_op(bio) == REQ_OP_DISCARD) goto queue_for_submitter_thread; if (rw == WRITE && req->private_bio && req->i.size diff --git a/drivers/char/random.c b/drivers/char/random.c index a8fb0020ba5c..cd888d4ee605 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -402,7 +402,8 @@ static struct poolinfo { /* * Static global variables */ -static DECLARE_WAIT_QUEUE_HEAD(random_wait); +static DECLARE_WAIT_QUEUE_HEAD(random_read_wait); +static DECLARE_WAIT_QUEUE_HEAD(random_write_wait); static struct fasync_struct *fasync; static DEFINE_SPINLOCK(random_ready_list_lock); @@ -721,8 +722,8 @@ retry: /* should we wake readers? */ if (entropy_bits >= random_read_wakeup_bits && - wq_has_sleeper(&random_wait)) { - wake_up_interruptible_poll(&random_wait, POLLIN); + wq_has_sleeper(&random_read_wait)) { + wake_up_interruptible(&random_read_wait); kill_fasync(&fasync, SIGIO, POLL_IN); } /* If the input pool is getting full, send some @@ -1396,7 +1397,7 @@ retry: trace_debit_entropy(r->name, 8 * ibytes); if (ibytes && (r->entropy_count >> ENTROPY_SHIFT) < random_write_wakeup_bits) { - wake_up_interruptible_poll(&random_wait, POLLOUT); + wake_up_interruptible(&random_write_wait); kill_fasync(&fasync, SIGIO, POLL_OUT); } @@ -1838,7 +1839,7 @@ _random_read(int nonblock, char __user *buf, size_t nbytes) if (nonblock) return -EAGAIN; - wait_event_interruptible(random_wait, + wait_event_interruptible(random_read_wait, ENTROPY_BITS(&input_pool) >= random_read_wakeup_bits); if (signal_pending(current)) @@ -1875,17 +1876,14 @@ urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) return ret; } -static struct wait_queue_head * -random_get_poll_head(struct file *file, __poll_t events) -{ - return &random_wait; -} - static __poll_t -random_poll_mask(struct file *file, __poll_t events) +random_poll(struct file *file, poll_table * wait) { - __poll_t mask = 0; + __poll_t mask; + poll_wait(file, &random_read_wait, wait); + poll_wait(file, &random_write_wait, wait); + mask = 0; if (ENTROPY_BITS(&input_pool) >= random_read_wakeup_bits) mask |= EPOLLIN | EPOLLRDNORM; if (ENTROPY_BITS(&input_pool) < random_write_wakeup_bits) @@ -1992,8 +1990,7 @@ static int random_fasync(int fd, struct file *filp, int on) const struct file_operations random_fops = { .read = random_read, .write = random_write, - .get_poll_head = random_get_poll_head, - .poll_mask = random_poll_mask, + .poll = random_poll, .unlocked_ioctl = random_ioctl, .fasync = random_fasync, .llseek = noop_llseek, @@ -2326,7 +2323,7 @@ void add_hwgenerator_randomness(const char *buffer, size_t count, * We'll be woken up again once below random_write_wakeup_thresh, * or when the calling thread is about to terminate. */ - wait_event_interruptible(random_wait, kthread_should_stop() || + wait_event_interruptible(random_write_wait, kthread_should_stop() || ENTROPY_BITS(&input_pool) <= random_write_wakeup_bits); mix_pool_bytes(poolp, buffer, count); credit_entropy_bits(poolp, entropy); diff --git a/drivers/cpufreq/qcom-cpufreq-kryo.c b/drivers/cpufreq/qcom-cpufreq-kryo.c index 01bddacf5c3b..29389accf3e9 100644 --- a/drivers/cpufreq/qcom-cpufreq-kryo.c +++ b/drivers/cpufreq/qcom-cpufreq-kryo.c @@ -87,8 +87,8 @@ static int qcom_cpufreq_kryo_probe(struct platform_device *pdev) int ret; cpu_dev = get_cpu_device(0); - if (NULL == cpu_dev) - ret = -ENODEV; + if (!cpu_dev) + return -ENODEV; msm8996_version = qcom_cpufreq_kryo_get_msm_id(); if (NUM_OF_MSM8996_VERSIONS == msm8996_version) { @@ -97,8 +97,8 @@ static int qcom_cpufreq_kryo_probe(struct platform_device *pdev) } np = dev_pm_opp_of_get_opp_desc_node(cpu_dev); - if (IS_ERR(np)) - return PTR_ERR(np); + if (!np) + return -ENOENT; ret = of_device_is_compatible(np, "operating-points-v2-kryo-cpu"); if (!ret) { diff --git a/drivers/dax/super.c b/drivers/dax/super.c index 903d9c473749..45276abf03aa 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -86,6 +86,7 @@ bool __bdev_dax_supported(struct block_device *bdev, int blocksize) { struct dax_device *dax_dev; bool dax_enabled = false; + struct request_queue *q; pgoff_t pgoff; int err, id; void *kaddr; @@ -99,6 +100,13 @@ bool __bdev_dax_supported(struct block_device *bdev, int blocksize) return false; } + q = bdev_get_queue(bdev); + if (!q || !blk_queue_dax(q)) { + pr_debug("%s: error: request queue doesn't support dax\n", + bdevname(bdev, buf)); + return false; + } + err = bdev_dax_pgoff(bdev, 0, PAGE_SIZE, &pgoff); if (err) { pr_debug("%s: error: unaligned partition for dax\n", diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index 39ec6b8890a1..e74d620d9699 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -376,7 +376,7 @@ int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring, struct amdgpu_device *adev = ring->adev; uint64_t index; - if (ring != &adev->uvd.inst[ring->me].ring) { + if (ring->funcs->type != AMDGPU_RING_TYPE_UVD) { ring->fence_drv.cpu_addr = &adev->wb.wb[ring->fence_offs]; ring->fence_drv.gpu_addr = adev->wb.gpu_addr + (ring->fence_offs * 4); } else { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index 127e87b470ff..1b4ad9b2a755 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -52,7 +52,7 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev) unsigned long bo_size; const char *fw_name; const struct common_firmware_header *hdr; - unsigned version_major, version_minor, family_id; + unsigned char fw_check; int r; INIT_DELAYED_WORK(&adev->vcn.idle_work, amdgpu_vcn_idle_work_handler); @@ -83,12 +83,33 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev) hdr = (const struct common_firmware_header *)adev->vcn.fw->data; adev->vcn.fw_version = le32_to_cpu(hdr->ucode_version); - family_id = le32_to_cpu(hdr->ucode_version) & 0xff; - version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff; - version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff; - DRM_INFO("Found VCN firmware Version: %hu.%hu Family ID: %hu\n", - version_major, version_minor, family_id); + /* Bit 20-23, it is encode major and non-zero for new naming convention. + * This field is part of version minor and DRM_DISABLED_FLAG in old naming + * convention. Since the l:wq!atest version minor is 0x5B and DRM_DISABLED_FLAG + * is zero in old naming convention, this field is always zero so far. + * These four bits are used to tell which naming convention is present. + */ + fw_check = (le32_to_cpu(hdr->ucode_version) >> 20) & 0xf; + if (fw_check) { + unsigned int dec_ver, enc_major, enc_minor, vep, fw_rev; + + fw_rev = le32_to_cpu(hdr->ucode_version) & 0xfff; + enc_minor = (le32_to_cpu(hdr->ucode_version) >> 12) & 0xff; + enc_major = fw_check; + dec_ver = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xf; + vep = (le32_to_cpu(hdr->ucode_version) >> 28) & 0xf; + DRM_INFO("Found VCN firmware Version ENC: %hu.%hu DEC: %hu VEP: %hu Revision: %hu\n", + enc_major, enc_minor, dec_ver, vep, fw_rev); + } else { + unsigned int version_major, version_minor, family_id; + + family_id = le32_to_cpu(hdr->ucode_version) & 0xff; + version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff; + version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff; + DRM_INFO("Found VCN firmware Version: %hu.%hu Family ID: %hu\n", + version_major, version_minor, family_id); + } bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8) + AMDGPU_VCN_STACK_SIZE + AMDGPU_VCN_HEAP_SIZE diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index b0eb2f537392..edf16b2b957a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1463,7 +1463,9 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev, uint64_t count; max_entries = min(max_entries, 16ull * 1024ull); - for (count = 1; count < max_entries; ++count) { + for (count = 1; + count < max_entries / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); + ++count) { uint64_t idx = pfn + count; if (pages_addr[idx] != @@ -1476,7 +1478,7 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev, dma_addr = pages_addr; } else { addr = pages_addr[pfn]; - max_entries = count; + max_entries = count * (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); } } else if (flags & AMDGPU_PTE_VALID) { @@ -1491,7 +1493,7 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev, if (r) return r; - pfn += last - start + 1; + pfn += (last - start + 1) / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE); if (nodes && nodes->size == pfn) { pfn = 0; ++nodes; diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index f9add85157e7..3a8d6356afc2 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3928,10 +3928,11 @@ static void amdgpu_dm_do_flip(struct drm_crtc *crtc, if (acrtc->base.state->event) prepare_flip_isr(acrtc); + spin_unlock_irqrestore(&crtc->dev->event_lock, flags); + surface_updates->surface = dc_stream_get_status(acrtc_state->stream)->plane_states[0]; surface_updates->flip_addr = &addr; - dc_commit_updates_for_stream(adev->dm.dc, surface_updates, 1, @@ -3944,9 +3945,6 @@ static void amdgpu_dm_do_flip(struct drm_crtc *crtc, __func__, addr.address.grph.addr.high_part, addr.address.grph.addr.low_part); - - - spin_unlock_irqrestore(&crtc->dev->event_lock, flags); } /* @@ -4206,6 +4204,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) struct drm_connector *connector; struct drm_connector_state *old_con_state, *new_con_state; struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; + int crtc_disable_count = 0; drm_atomic_helper_update_legacy_modeset_state(dev, state); @@ -4410,6 +4409,9 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); bool modeset_needed; + if (old_crtc_state->active && !new_crtc_state->active) + crtc_disable_count++; + dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); modeset_needed = modeset_required( @@ -4463,11 +4465,9 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) * so we can put the GPU into runtime suspend if we're not driving any * displays anymore */ + for (i = 0; i < crtc_disable_count; i++) + pm_runtime_put_autosuspend(dev->dev); pm_runtime_mark_last_busy(dev->dev); - for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { - if (old_crtc_state->active && !new_crtc_state->active) - pm_runtime_put_autosuspend(dev->dev); - } } diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 8d20faa198cf..0a788d76ed5f 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -278,7 +278,6 @@ static int malidp_init(struct drm_device *drm) static void malidp_fini(struct drm_device *drm) { - drm_atomic_helper_shutdown(drm); drm_mode_config_cleanup(drm); } @@ -646,6 +645,7 @@ vblank_fail: malidp_de_irq_fini(drm); drm->irq_enabled = false; irq_init_fail: + drm_atomic_helper_shutdown(drm); component_unbind_all(dev, drm); bind_fail: of_node_put(malidp->crtc.port); @@ -681,6 +681,7 @@ static void malidp_unbind(struct device *dev) malidp_se_irq_fini(drm); malidp_de_irq_fini(drm); drm->irq_enabled = false; + drm_atomic_helper_shutdown(drm); component_unbind_all(dev, drm); of_node_put(malidp->crtc.port); malidp->crtc.port = NULL; diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c index d789b46dc817..069783e715f1 100644 --- a/drivers/gpu/drm/arm/malidp_hw.c +++ b/drivers/gpu/drm/arm/malidp_hw.c @@ -634,7 +634,8 @@ const struct malidp_hw malidp_device[MALIDP_MAX_DEVICES] = { .vsync_irq = MALIDP500_DE_IRQ_VSYNC, }, .se_irq_map = { - .irq_mask = MALIDP500_SE_IRQ_CONF_MODE, + .irq_mask = MALIDP500_SE_IRQ_CONF_MODE | + MALIDP500_SE_IRQ_GLOBAL, .vsync_irq = 0, }, .dc_irq_map = { diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c index 7a44897c50fe..29409a65d864 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -23,6 +23,7 @@ /* Layer specific register offsets */ #define MALIDP_LAYER_FORMAT 0x000 +#define LAYER_FORMAT_MASK 0x3f #define MALIDP_LAYER_CONTROL 0x004 #define LAYER_ENABLE (1 << 0) #define LAYER_FLOWCFG_MASK 7 @@ -235,8 +236,8 @@ static int malidp_de_plane_check(struct drm_plane *plane, if (state->rotation & MALIDP_ROTATED_MASK) { int val; - val = mp->hwdev->hw->rotmem_required(mp->hwdev, state->crtc_h, - state->crtc_w, + val = mp->hwdev->hw->rotmem_required(mp->hwdev, state->crtc_w, + state->crtc_h, fb->format->format); if (val < 0) return val; @@ -337,7 +338,9 @@ static void malidp_de_plane_update(struct drm_plane *plane, dest_w = plane->state->crtc_w; dest_h = plane->state->crtc_h; - malidp_hw_write(mp->hwdev, ms->format, mp->layer->base); + val = malidp_hw_read(mp->hwdev, mp->layer->base); + val = (val & ~LAYER_FORMAT_MASK) | ms->format; + malidp_hw_write(mp->hwdev, val, mp->layer->base); for (i = 0; i < ms->n_planes; i++) { /* calculate the offset for the layer's plane registers */ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 7014a96546f4..52f3b91d14fd 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2245,9 +2245,6 @@ static inline struct scatterlist *____sg_next(struct scatterlist *sg) **/ static inline struct scatterlist *__sg_next(struct scatterlist *sg) { -#ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); -#endif return sg_is_last(sg) ? NULL : ____sg_next(sg); } diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 32b1a6cdecfc..d3443125e661 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -197,8 +197,10 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) priv->io_base = regs; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi"); - if (!res) - return -EINVAL; + if (!res) { + ret = -EINVAL; + goto free_drm; + } /* Simply ioremap since it may be a shared register zone */ regs = devm_ioremap(dev, res->start, resource_size(res)); if (!regs) { @@ -215,8 +217,10 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) } res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dmc"); - if (!res) - return -EINVAL; + if (!res) { + ret = -EINVAL; + goto free_drm; + } /* Simply ioremap since it may be a shared register zone */ regs = devm_ioremap(dev, res->start, resource_size(res)); if (!regs) { diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index 4a34f311e1ff..6ec65adaba49 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -647,10 +647,10 @@ static int __i2c_bit_add_bus(struct i2c_adapter *adap, if (bit_adap->getscl == NULL) adap->quirks = &i2c_bit_quirk_no_clk_stretch; - /* Bring bus to a known state. Looks like STOP if bus is not free yet */ - setscl(bit_adap, 1); - udelay(bit_adap->udelay); - setsda(bit_adap, 1); + /* + * We tried forcing SCL/SDA to an initial state here. But that caused a + * regression, sadly. Check Bugzilla #200045 for details. + */ ret = add_adapter(adap); if (ret < 0) diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c index 005e6e0330c2..66f85bbf3591 100644 --- a/drivers/i2c/busses/i2c-gpio.c +++ b/drivers/i2c/busses/i2c-gpio.c @@ -279,9 +279,9 @@ static int i2c_gpio_probe(struct platform_device *pdev) * required for an I2C bus. */ if (pdata->scl_is_open_drain) - gflags = GPIOD_OUT_LOW; + gflags = GPIOD_OUT_HIGH; else - gflags = GPIOD_OUT_LOW_OPEN_DRAIN; + gflags = GPIOD_OUT_HIGH_OPEN_DRAIN; priv->scl = i2c_gpio_get_desc(dev, "scl", 1, gflags); if (IS_ERR(priv->scl)) return PTR_ERR(priv->scl); diff --git a/drivers/i2c/i2c-core-smbus.c b/drivers/i2c/i2c-core-smbus.c index f3f683041e7f..51970bae3c4a 100644 --- a/drivers/i2c/i2c-core-smbus.c +++ b/drivers/i2c/i2c-core-smbus.c @@ -465,15 +465,18 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, status = i2c_transfer(adapter, msg, num); if (status < 0) - return status; - if (status != num) - return -EIO; + goto cleanup; + if (status != num) { + status = -EIO; + goto cleanup; + } + status = 0; /* Check PEC if last message is a read */ if (i && (msg[num-1].flags & I2C_M_RD)) { status = i2c_smbus_check_pec(partial_pec, &msg[num-1]); if (status < 0) - return status; + goto cleanup; } if (read_write == I2C_SMBUS_READ) @@ -499,12 +502,13 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, break; } +cleanup: if (msg[0].flags & I2C_M_DMA_SAFE) kfree(msg[0].buf); if (msg[1].flags & I2C_M_DMA_SAFE) kfree(msg[1].buf); - return 0; + return status; } /** diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 98f90aadd141..18c0a1281914 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -588,7 +588,7 @@ static const struct proto_ops data_sock_ops = { .getname = data_sock_getname, .sendmsg = mISDN_sock_sendmsg, .recvmsg = mISDN_sock_recvmsg, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = data_sock_setsockopt, diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index ab13fcec3fca..75df4c9d8b54 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -588,7 +588,7 @@ static const char *raid10_md_layout_to_format(int layout) } /* Return md raid10 algorithm for @name */ -static const int raid10_name_to_format(const char *name) +static int raid10_name_to_format(const char *name) { if (!strcasecmp(name, "near")) return ALGORITHM_RAID10_NEAR; diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 938766794c2e..3d0e2c198f06 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -885,9 +885,7 @@ EXPORT_SYMBOL_GPL(dm_table_set_type); static int device_supports_dax(struct dm_target *ti, struct dm_dev *dev, sector_t start, sector_t len, void *data) { - struct request_queue *q = bdev_get_queue(dev->bdev); - - return q && blk_queue_dax(q); + return bdev_dax_supported(dev->bdev, PAGE_SIZE); } static bool dm_table_supports_dax(struct dm_table *t) @@ -1907,6 +1905,9 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, if (dm_table_supports_dax(t)) blk_queue_flag_set(QUEUE_FLAG_DAX, q); + else + blk_queue_flag_clear(QUEUE_FLAG_DAX, q); + if (dm_table_supports_dax_write_cache(t)) dax_write_cache(t->md->dax_dev, true); diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 36ef284ad086..72142021b5c9 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -776,7 +776,6 @@ static int __write_changed_details(struct dm_pool_metadata *pmd) static int __commit_transaction(struct dm_pool_metadata *pmd) { int r; - size_t metadata_len, data_len; struct thin_disk_superblock *disk_super; struct dm_block *sblock; @@ -797,14 +796,6 @@ static int __commit_transaction(struct dm_pool_metadata *pmd) if (r < 0) return r; - r = dm_sm_root_size(pmd->metadata_sm, &metadata_len); - if (r < 0) - return r; - - r = dm_sm_root_size(pmd->data_sm, &data_len); - if (r < 0) - return r; - r = save_sm_roots(pmd); if (r < 0) return r; diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 7945238df1c0..b900723bbd0f 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -1386,6 +1386,8 @@ static void schedule_external_copy(struct thin_c *tc, dm_block_t virt_block, static void set_pool_mode(struct pool *pool, enum pool_mode new_mode); +static void requeue_bios(struct pool *pool); + static void check_for_space(struct pool *pool) { int r; @@ -1398,8 +1400,10 @@ static void check_for_space(struct pool *pool) if (r) return; - if (nr_free) + if (nr_free) { set_pool_mode(pool, PM_WRITE); + requeue_bios(pool); + } } /* @@ -1476,7 +1480,10 @@ static int alloc_data_block(struct thin_c *tc, dm_block_t *result) r = dm_pool_alloc_data_block(pool->pmd, result); if (r) { - metadata_operation_failed(pool, "dm_pool_alloc_data_block", r); + if (r == -ENOSPC) + set_pool_mode(pool, PM_OUT_OF_DATA_SPACE); + else + metadata_operation_failed(pool, "dm_pool_alloc_data_block", r); return r; } diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c index 5961c7794ef3..07ea6a48aac6 100644 --- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -259,7 +259,7 @@ static int persistent_memory_claim(struct dm_writecache *wc) if (da != p) { long i; wc->memory_map = NULL; - pages = kvmalloc(p * sizeof(struct page *), GFP_KERNEL); + pages = kvmalloc_array(p, sizeof(struct page *), GFP_KERNEL); if (!pages) { r = -ENOMEM; goto err2; @@ -859,7 +859,7 @@ static int writecache_alloc_entries(struct dm_writecache *wc) if (wc->entries) return 0; - wc->entries = vmalloc(sizeof(struct wc_entry) * wc->n_blocks); + wc->entries = vmalloc(array_size(sizeof(struct wc_entry), wc->n_blocks)); if (!wc->entries) return -ENOMEM; for (b = 0; b < wc->n_blocks; b++) { @@ -1481,9 +1481,9 @@ static void __writecache_writeback_pmem(struct dm_writecache *wc, struct writeba wb->bio.bi_iter.bi_sector = read_original_sector(wc, e); wb->page_offset = PAGE_SIZE; if (max_pages <= WB_LIST_INLINE || - unlikely(!(wb->wc_list = kmalloc(max_pages * sizeof(struct wc_entry *), - GFP_NOIO | __GFP_NORETRY | - __GFP_NOMEMALLOC | __GFP_NOWARN)))) { + unlikely(!(wb->wc_list = kmalloc_array(max_pages, sizeof(struct wc_entry *), + GFP_NOIO | __GFP_NORETRY | + __GFP_NOMEMALLOC | __GFP_NOWARN)))) { wb->wc_list = wb->wc_list_inline; max_pages = WB_LIST_INLINE; } diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c index 3c0e45f4dcf5..a44183ff4be0 100644 --- a/drivers/md/dm-zoned-target.c +++ b/drivers/md/dm-zoned-target.c @@ -787,7 +787,7 @@ static int dmz_ctr(struct dm_target *ti, unsigned int argc, char **argv) /* Chunk BIO work */ mutex_init(&dmz->chunk_lock); - INIT_RADIX_TREE(&dmz->chunk_rxtree, GFP_KERNEL); + INIT_RADIX_TREE(&dmz->chunk_rxtree, GFP_NOIO); dmz->chunk_wq = alloc_workqueue("dmz_cwq_%s", WQ_MEM_RECLAIM | WQ_UNBOUND, 0, dev->name); if (!dmz->chunk_wq) { diff --git a/drivers/md/dm.c b/drivers/md/dm.c index e65429a29c06..b0dd7027848b 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1056,8 +1056,7 @@ static long dm_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, if (len < 1) goto out; nr_pages = min(len, nr_pages); - if (ti->type->direct_access) - ret = ti->type->direct_access(ti, pgoff, nr_pages, kaddr, pfn); + ret = ti->type->direct_access(ti, pgoff, nr_pages, kaddr, pfn); out: dm_put_live_table(md, srcu_idx); @@ -1606,10 +1605,9 @@ static blk_qc_t __split_and_process_bio(struct mapped_device *md, * the usage of io->orig_bio in dm_remap_zone_report() * won't be affected by this reassignment. */ - struct bio *b = bio_clone_bioset(bio, GFP_NOIO, - &md->queue->bio_split); + struct bio *b = bio_split(bio, bio_sectors(bio) - ci.sector_count, + GFP_NOIO, &md->queue->bio_split); ci.io->orig_bio = b; - bio_advance(bio, (bio_sectors(bio) - ci.sector_count) << 9); bio_chain(b, bio); ret = generic_make_request(bio); break; diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index a0c655628d6d..1b64ac8c5bc8 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -2526,7 +2526,7 @@ static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) struct ppb_lock { struct flchip *chip; - loff_t offset; + unsigned long adr; int locked; }; @@ -2544,8 +2544,9 @@ static int __maybe_unused do_ppb_xxlock(struct map_info *map, unsigned long timeo; int ret; + adr += chip->start; mutex_lock(&chip->mutex); - ret = get_chip(map, chip, adr + chip->start, FL_LOCKING); + ret = get_chip(map, chip, adr, FL_LOCKING); if (ret) { mutex_unlock(&chip->mutex); return ret; @@ -2563,8 +2564,8 @@ static int __maybe_unused do_ppb_xxlock(struct map_info *map, if (thunk == DO_XXLOCK_ONEBLOCK_LOCK) { chip->state = FL_LOCKING; - map_write(map, CMD(0xA0), chip->start + adr); - map_write(map, CMD(0x00), chip->start + adr); + map_write(map, CMD(0xA0), adr); + map_write(map, CMD(0x00), adr); } else if (thunk == DO_XXLOCK_ONEBLOCK_UNLOCK) { /* * Unlocking of one specific sector is not supported, so we @@ -2602,7 +2603,7 @@ static int __maybe_unused do_ppb_xxlock(struct map_info *map, map_write(map, CMD(0x00), chip->start); chip->state = FL_READY; - put_chip(map, chip, adr + chip->start); + put_chip(map, chip, adr); mutex_unlock(&chip->mutex); return ret; @@ -2659,9 +2660,9 @@ static int __maybe_unused cfi_ppb_unlock(struct mtd_info *mtd, loff_t ofs, * sectors shall be unlocked, so lets keep their locking * status at "unlocked" (locked=0) for the final re-locking. */ - if ((adr < ofs) || (adr >= (ofs + len))) { + if ((offset < ofs) || (offset >= (ofs + len))) { sect[sectors].chip = &cfi->chips[chipnum]; - sect[sectors].offset = offset; + sect[sectors].adr = adr; sect[sectors].locked = do_ppb_xxlock( map, &cfi->chips[chipnum], adr, 0, DO_XXLOCK_ONEBLOCK_GETLOCK); @@ -2675,6 +2676,8 @@ static int __maybe_unused cfi_ppb_unlock(struct mtd_info *mtd, loff_t ofs, i++; if (adr >> cfi->chipshift) { + if (offset >= (ofs + len)) + break; adr = 0; chipnum++; @@ -2705,7 +2708,7 @@ static int __maybe_unused cfi_ppb_unlock(struct mtd_info *mtd, loff_t ofs, */ for (i = 0; i < sectors; i++) { if (sect[i].locked) - do_ppb_xxlock(map, sect[i].chip, sect[i].offset, 0, + do_ppb_xxlock(map, sect[i].chip, sect[i].adr, 0, DO_XXLOCK_ONEBLOCK_LOCK); } diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 3a6f450d1093..53febe8a68c3 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -733,8 +733,8 @@ static struct flash_info dataflash_data[] = { { "AT45DB642x", 0x1f2800, 8192, 1056, 11, SUP_POW2PS}, { "at45db642d", 0x1f2800, 8192, 1024, 10, SUP_POW2PS | IS_POW2PS}, - { "AT45DB641E", 0x1f28000100, 32768, 264, 9, SUP_EXTID | SUP_POW2PS}, - { "at45db641e", 0x1f28000100, 32768, 256, 8, SUP_EXTID | SUP_POW2PS | IS_POW2PS}, + { "AT45DB641E", 0x1f28000100ULL, 32768, 264, 9, SUP_EXTID | SUP_POW2PS}, + { "at45db641e", 0x1f28000100ULL, 32768, 256, 8, SUP_EXTID | SUP_POW2PS | IS_POW2PS}, }; static struct flash_info *jedec_lookup(struct spi_device *spi, diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c index cfd33e6ca77f..5869e90cc14b 100644 --- a/drivers/mtd/nand/raw/denali_dt.c +++ b/drivers/mtd/nand/raw/denali_dt.c @@ -123,7 +123,11 @@ static int denali_dt_probe(struct platform_device *pdev) if (ret) return ret; - denali->clk_x_rate = clk_get_rate(dt->clk); + /* + * Hardcode the clock rate for the backward compatibility. + * This works for both SOCFPGA and UniPhier. + */ + denali->clk_x_rate = 200000000; ret = denali_init(denali); if (ret) diff --git a/drivers/mtd/nand/raw/mxc_nand.c b/drivers/mtd/nand/raw/mxc_nand.c index 45786e707b7b..26cef218bb43 100644 --- a/drivers/mtd/nand/raw/mxc_nand.c +++ b/drivers/mtd/nand/raw/mxc_nand.c @@ -48,7 +48,7 @@ #define NFC_V1_V2_CONFIG (host->regs + 0x0a) #define NFC_V1_V2_ECC_STATUS_RESULT (host->regs + 0x0c) #define NFC_V1_V2_RSLTMAIN_AREA (host->regs + 0x0e) -#define NFC_V1_V2_RSLTSPARE_AREA (host->regs + 0x10) +#define NFC_V21_RSLTSPARE_AREA (host->regs + 0x10) #define NFC_V1_V2_WRPROT (host->regs + 0x12) #define NFC_V1_UNLOCKSTART_BLKADDR (host->regs + 0x14) #define NFC_V1_UNLOCKEND_BLKADDR (host->regs + 0x16) @@ -1274,6 +1274,9 @@ static void preset_v2(struct mtd_info *mtd) writew(config1, NFC_V1_V2_CONFIG1); /* preset operation */ + /* spare area size in 16-bit half-words */ + writew(mtd->oobsize / 2, NFC_V21_RSLTSPARE_AREA); + /* Unlock the internal RAM Buffer */ writew(0x2, NFC_V1_V2_CONFIG); diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index 10c4f9919850..b01d15ec4c56 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -440,7 +440,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs) for (; page < page_end; page++) { res = chip->ecc.read_oob(mtd, chip, page); - if (res) + if (res < 0) return res; bad = chip->oob_poi[chip->badblockpos]; diff --git a/drivers/mtd/nand/raw/nand_macronix.c b/drivers/mtd/nand/raw/nand_macronix.c index 7ed1f87e742a..49c546c97c6f 100644 --- a/drivers/mtd/nand/raw/nand_macronix.c +++ b/drivers/mtd/nand/raw/nand_macronix.c @@ -17,23 +17,47 @@ #include <linux/mtd/rawnand.h> +/* + * Macronix AC series does not support using SET/GET_FEATURES to change + * the timings unlike what is declared in the parameter page. Unflag + * this feature to avoid unnecessary downturns. + */ +static void macronix_nand_fix_broken_get_timings(struct nand_chip *chip) +{ + unsigned int i; + static const char * const broken_get_timings[] = { + "MX30LF1G18AC", + "MX30LF1G28AC", + "MX30LF2G18AC", + "MX30LF2G28AC", + "MX30LF4G18AC", + "MX30LF4G28AC", + "MX60LF8G18AC", + }; + + if (!chip->parameters.supports_set_get_features) + return; + + for (i = 0; i < ARRAY_SIZE(broken_get_timings); i++) { + if (!strcmp(broken_get_timings[i], chip->parameters.model)) + break; + } + + if (i == ARRAY_SIZE(broken_get_timings)) + return; + + bitmap_clear(chip->parameters.get_feature_list, + ONFI_FEATURE_ADDR_TIMING_MODE, 1); + bitmap_clear(chip->parameters.set_feature_list, + ONFI_FEATURE_ADDR_TIMING_MODE, 1); +} + static int macronix_nand_init(struct nand_chip *chip) { if (nand_is_slc(chip)) chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; - /* - * MX30LF2G18AC chip does not support using SET/GET_FEATURES to change - * the timings unlike what is declared in the parameter page. Unflag - * this feature to avoid unnecessary downturns. - */ - if (chip->parameters.supports_set_get_features && - !strcmp("MX30LF2G18AC", chip->parameters.model)) { - bitmap_clear(chip->parameters.get_feature_list, - ONFI_FEATURE_ADDR_TIMING_MODE, 1); - bitmap_clear(chip->parameters.set_feature_list, - ONFI_FEATURE_ADDR_TIMING_MODE, 1); - } + macronix_nand_fix_broken_get_timings(chip); return 0; } diff --git a/drivers/mtd/nand/raw/nand_micron.c b/drivers/mtd/nand/raw/nand_micron.c index 0af45b134c0c..5ec4c90a637d 100644 --- a/drivers/mtd/nand/raw/nand_micron.c +++ b/drivers/mtd/nand/raw/nand_micron.c @@ -66,7 +66,9 @@ static int micron_nand_onfi_init(struct nand_chip *chip) if (p->supports_set_get_features) { set_bit(ONFI_FEATURE_ADDR_READ_RETRY, p->set_feature_list); + set_bit(ONFI_FEATURE_ON_DIE_ECC, p->set_feature_list); set_bit(ONFI_FEATURE_ADDR_READ_RETRY, p->get_feature_list); + set_bit(ONFI_FEATURE_ON_DIE_ECC, p->get_feature_list); } return 0; diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index de51e8f70f44..ce61231e96ea 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -1107,7 +1107,7 @@ static const struct proto_ops pppoe_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = pppoe_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 68940356cad3..8b1fd7f1a224 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -414,7 +414,8 @@ static int pmem_attach_disk(struct device *dev, blk_queue_logical_block_size(q, pmem_sector_size(ndns)); blk_queue_max_hw_sectors(q, UINT_MAX); blk_queue_flag_set(QUEUE_FLAG_NONROT, q); - blk_queue_flag_set(QUEUE_FLAG_DAX, q); + if (pmem->pfn_flags & PFN_MAP) + blk_queue_flag_set(QUEUE_FLAG_DAX, q); q->queuedata = pmem; disk = alloc_disk_node(0, nid); diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 9544625c0b7d..518c5b09038c 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -732,8 +732,11 @@ static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl, blk_cleanup_queue(ctrl->ctrl.admin_q); nvme_rdma_free_tagset(&ctrl->ctrl, ctrl->ctrl.admin_tagset); } - nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe, - sizeof(struct nvme_command), DMA_TO_DEVICE); + if (ctrl->async_event_sqe.data) { + nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe, + sizeof(struct nvme_command), DMA_TO_DEVICE); + ctrl->async_event_sqe.data = NULL; + } nvme_rdma_free_queue(&ctrl->queues[0]); } diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 535201984b8b..1b2cfe51e8d7 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -28,10 +28,10 @@ obj-$(CONFIG_PCI_PF_STUB) += pci-pf-stub.o obj-$(CONFIG_PCI_ECAM) += ecam.o obj-$(CONFIG_XEN_PCIDEV_FRONTEND) += xen-pcifront.o -obj-y += controller/ -obj-y += switch/ - # Endpoint library must be initialized before its users obj-$(CONFIG_PCI_ENDPOINT) += endpoint/ +obj-y += controller/ +obj-y += switch/ + ccflags-$(CONFIG_PCI_DEBUG) := -DDEBUG diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig index 18fa09b3ac8f..cc9fa02d32a0 100644 --- a/drivers/pci/controller/Kconfig +++ b/drivers/pci/controller/Kconfig @@ -96,7 +96,6 @@ config PCI_HOST_GENERIC depends on OF select PCI_HOST_COMMON select IRQ_DOMAIN - select PCI_DOMAINS help Say Y here if you want to support a simple generic PCI host controller, such as the one emulated by kvmtool. @@ -138,7 +137,6 @@ config PCI_VERSATILE config PCIE_IPROC tristate - select PCI_DOMAINS help This enables the iProc PCIe core controller support for Broadcom's iProc family of SoCs. An appropriate bus interface driver needs @@ -176,7 +174,6 @@ config PCIE_IPROC_MSI config PCIE_ALTERA bool "Altera PCIe controller" depends on ARM || NIOS2 || COMPILE_TEST - select PCI_DOMAINS help Say Y here if you want to enable PCIe controller support on Altera FPGA. diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c index 3979f89b250a..5bd6c1573295 100644 --- a/drivers/pci/hotplug/acpi_pcihp.c +++ b/drivers/pci/hotplug/acpi_pcihp.c @@ -7,7 +7,6 @@ * All rights reserved. * * Send feedback to <kristen.c.accardi@intel.com> - * */ #include <linux/module.h> @@ -87,8 +86,17 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev) return 0; /* If _OSC exists, we should not evaluate OSHP */ + + /* + * If there's no ACPI host bridge (i.e., ACPI support is compiled + * into the kernel but the hardware platform doesn't support ACPI), + * there's nothing to do here. + */ host = pci_find_host_bridge(pdev->bus); root = acpi_pci_find_root(ACPI_HANDLE(&host->dev)); + if (!root) + return 0; + if (root->osc_support_set) goto no_control; diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c index 6bdb1dad805f..0e31f1392a53 100644 --- a/drivers/perf/xgene_pmu.c +++ b/drivers/perf/xgene_pmu.c @@ -1463,7 +1463,7 @@ static char *xgene_pmu_dev_name(struct device *dev, u32 type, int id) case PMU_TYPE_IOB: return devm_kasprintf(dev, GFP_KERNEL, "iob%d", id); case PMU_TYPE_IOB_SLOW: - return devm_kasprintf(dev, GFP_KERNEL, "iob-slow%d", id); + return devm_kasprintf(dev, GFP_KERNEL, "iob_slow%d", id); case PMU_TYPE_MCB: return devm_kasprintf(dev, GFP_KERNEL, "mcb%d", id); case PMU_TYPE_MC: @@ -5,7 +5,6 @@ * Implements an efficient asynchronous io interface. * * Copyright 2000, 2001, 2002 Red Hat, Inc. All Rights Reserved. - * Copyright 2018 Christoph Hellwig. * * See ../COPYING for licensing terms. */ @@ -165,22 +164,10 @@ struct fsync_iocb { bool datasync; }; -struct poll_iocb { - struct file *file; - __poll_t events; - struct wait_queue_head *head; - - union { - struct wait_queue_entry wait; - struct work_struct work; - }; -}; - struct aio_kiocb { union { struct kiocb rw; struct fsync_iocb fsync; - struct poll_iocb poll; }; struct kioctx *ki_ctx; @@ -1590,6 +1577,7 @@ static int aio_fsync(struct fsync_iocb *req, struct iocb *iocb, bool datasync) if (unlikely(iocb->aio_buf || iocb->aio_offset || iocb->aio_nbytes || iocb->aio_rw_flags)) return -EINVAL; + req->file = fget(iocb->aio_fildes); if (unlikely(!req->file)) return -EBADF; @@ -1604,137 +1592,6 @@ static int aio_fsync(struct fsync_iocb *req, struct iocb *iocb, bool datasync) return 0; } -/* need to use list_del_init so we can check if item was present */ -static inline bool __aio_poll_remove(struct poll_iocb *req) -{ - if (list_empty(&req->wait.entry)) - return false; - list_del_init(&req->wait.entry); - return true; -} - -static inline void __aio_poll_complete(struct aio_kiocb *iocb, __poll_t mask) -{ - fput(iocb->poll.file); - aio_complete(iocb, mangle_poll(mask), 0); -} - -static void aio_poll_work(struct work_struct *work) -{ - struct aio_kiocb *iocb = container_of(work, struct aio_kiocb, poll.work); - - if (!list_empty_careful(&iocb->ki_list)) - aio_remove_iocb(iocb); - __aio_poll_complete(iocb, iocb->poll.events); -} - -static int aio_poll_cancel(struct kiocb *iocb) -{ - struct aio_kiocb *aiocb = container_of(iocb, struct aio_kiocb, rw); - struct poll_iocb *req = &aiocb->poll; - struct wait_queue_head *head = req->head; - bool found = false; - - spin_lock(&head->lock); - found = __aio_poll_remove(req); - spin_unlock(&head->lock); - - if (found) { - req->events = 0; - INIT_WORK(&req->work, aio_poll_work); - schedule_work(&req->work); - } - return 0; -} - -static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync, - void *key) -{ - struct poll_iocb *req = container_of(wait, struct poll_iocb, wait); - struct aio_kiocb *iocb = container_of(req, struct aio_kiocb, poll); - struct file *file = req->file; - __poll_t mask = key_to_poll(key); - - assert_spin_locked(&req->head->lock); - - /* for instances that support it check for an event match first: */ - if (mask && !(mask & req->events)) - return 0; - - mask = file->f_op->poll_mask(file, req->events) & req->events; - if (!mask) - return 0; - - __aio_poll_remove(req); - - /* - * Try completing without a context switch if we can acquire ctx_lock - * without spinning. Otherwise we need to defer to a workqueue to - * avoid a deadlock due to the lock order. - */ - if (spin_trylock(&iocb->ki_ctx->ctx_lock)) { - list_del_init(&iocb->ki_list); - spin_unlock(&iocb->ki_ctx->ctx_lock); - - __aio_poll_complete(iocb, mask); - } else { - req->events = mask; - INIT_WORK(&req->work, aio_poll_work); - schedule_work(&req->work); - } - - return 1; -} - -static ssize_t aio_poll(struct aio_kiocb *aiocb, struct iocb *iocb) -{ - struct kioctx *ctx = aiocb->ki_ctx; - struct poll_iocb *req = &aiocb->poll; - __poll_t mask; - - /* reject any unknown events outside the normal event mask. */ - if ((u16)iocb->aio_buf != iocb->aio_buf) - return -EINVAL; - /* reject fields that are not defined for poll */ - if (iocb->aio_offset || iocb->aio_nbytes || iocb->aio_rw_flags) - return -EINVAL; - - req->events = demangle_poll(iocb->aio_buf) | EPOLLERR | EPOLLHUP; - req->file = fget(iocb->aio_fildes); - if (unlikely(!req->file)) - return -EBADF; - if (!file_has_poll_mask(req->file)) - goto out_fail; - - req->head = req->file->f_op->get_poll_head(req->file, req->events); - if (!req->head) - goto out_fail; - if (IS_ERR(req->head)) { - mask = EPOLLERR; - goto done; - } - - init_waitqueue_func_entry(&req->wait, aio_poll_wake); - aiocb->ki_cancel = aio_poll_cancel; - - spin_lock_irq(&ctx->ctx_lock); - spin_lock(&req->head->lock); - mask = req->file->f_op->poll_mask(req->file, req->events) & req->events; - if (!mask) { - __add_wait_queue(req->head, &req->wait); - list_add_tail(&aiocb->ki_list, &ctx->active_reqs); - } - spin_unlock(&req->head->lock); - spin_unlock_irq(&ctx->ctx_lock); -done: - if (mask) - __aio_poll_complete(aiocb, mask); - return 0; -out_fail: - fput(req->file); - return -EINVAL; /* same as no support for IOCB_CMD_POLL */ -} - static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, bool compat) { @@ -1808,9 +1665,6 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, case IOCB_CMD_FDSYNC: ret = aio_fsync(&req->fsync, &iocb, true); break; - case IOCB_CMD_POLL: - ret = aio_poll(req, &iocb); - break; default: pr_debug("invalid aio operation %d\n", iocb.aio_lio_opcode); ret = -EINVAL; diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index ee764ac352ab..a866be999216 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -1135,6 +1135,7 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in) if (IS_ERR(realdn)) { pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n", PTR_ERR(realdn), dn, in, ceph_vinop(in)); + dput(dn); dn = realdn; /* note realdn contains the error */ goto out; } else if (realdn) { diff --git a/fs/eventfd.c b/fs/eventfd.c index ceb1031f1cac..08d3bd602f73 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -101,20 +101,14 @@ static int eventfd_release(struct inode *inode, struct file *file) return 0; } -static struct wait_queue_head * -eventfd_get_poll_head(struct file *file, __poll_t events) -{ - struct eventfd_ctx *ctx = file->private_data; - - return &ctx->wqh; -} - -static __poll_t eventfd_poll_mask(struct file *file, __poll_t eventmask) +static __poll_t eventfd_poll(struct file *file, poll_table *wait) { struct eventfd_ctx *ctx = file->private_data; __poll_t events = 0; u64 count; + poll_wait(file, &ctx->wqh, wait); + /* * All writes to ctx->count occur within ctx->wqh.lock. This read * can be done outside ctx->wqh.lock because we know that poll_wait @@ -156,11 +150,11 @@ static __poll_t eventfd_poll_mask(struct file *file, __poll_t eventmask) count = READ_ONCE(ctx->count); if (count > 0) - events |= (EPOLLIN & eventmask); + events |= EPOLLIN; if (count == ULLONG_MAX) events |= EPOLLERR; if (ULLONG_MAX - 1 > count) - events |= (EPOLLOUT & eventmask); + events |= EPOLLOUT; return events; } @@ -311,8 +305,7 @@ static const struct file_operations eventfd_fops = { .show_fdinfo = eventfd_show_fdinfo, #endif .release = eventfd_release, - .get_poll_head = eventfd_get_poll_head, - .poll_mask = eventfd_poll_mask, + .poll = eventfd_poll, .read = eventfd_read, .write = eventfd_write, .llseek = noop_llseek, diff --git a/fs/eventpoll.c b/fs/eventpoll.c index ea4436f409fb..67db22fe99c5 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -922,18 +922,14 @@ static __poll_t ep_read_events_proc(struct eventpoll *ep, struct list_head *head return 0; } -static struct wait_queue_head *ep_eventpoll_get_poll_head(struct file *file, - __poll_t eventmask) -{ - struct eventpoll *ep = file->private_data; - return &ep->poll_wait; -} - -static __poll_t ep_eventpoll_poll_mask(struct file *file, __poll_t eventmask) +static __poll_t ep_eventpoll_poll(struct file *file, poll_table *wait) { struct eventpoll *ep = file->private_data; int depth = 0; + /* Insert inside our poll wait queue */ + poll_wait(file, &ep->poll_wait, wait); + /* * Proceed to find out if wanted events are really available inside * the ready list. @@ -972,8 +968,7 @@ static const struct file_operations eventpoll_fops = { .show_fdinfo = ep_show_fdinfo, #endif .release = ep_eventpoll_release, - .get_poll_head = ep_eventpoll_get_poll_head, - .poll_mask = ep_eventpoll_poll_mask, + .poll = ep_eventpoll_poll, .llseek = noop_llseek, }; diff --git a/fs/pipe.c b/fs/pipe.c index bb0840e234f3..39d6f431da83 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -509,22 +509,19 @@ static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) } } -static struct wait_queue_head * -pipe_get_poll_head(struct file *filp, __poll_t events) -{ - struct pipe_inode_info *pipe = filp->private_data; - - return &pipe->wait; -} - /* No kernel lock held - fine */ -static __poll_t pipe_poll_mask(struct file *filp, __poll_t events) +static __poll_t +pipe_poll(struct file *filp, poll_table *wait) { + __poll_t mask; struct pipe_inode_info *pipe = filp->private_data; - int nrbufs = pipe->nrbufs; - __poll_t mask = 0; + int nrbufs; + + poll_wait(filp, &pipe->wait, wait); /* Reading only -- no need for acquiring the semaphore. */ + nrbufs = pipe->nrbufs; + mask = 0; if (filp->f_mode & FMODE_READ) { mask = (nrbufs > 0) ? EPOLLIN | EPOLLRDNORM : 0; if (!pipe->writers && filp->f_version != pipe->w_counter) @@ -1023,8 +1020,7 @@ const struct file_operations pipefifo_fops = { .llseek = no_llseek, .read_iter = pipe_read, .write_iter = pipe_write, - .get_poll_head = pipe_get_poll_head, - .poll_mask = pipe_poll_mask, + .poll = pipe_poll, .unlocked_ioctl = pipe_ioctl, .release = pipe_release, .fasync = pipe_fasync, diff --git a/fs/select.c b/fs/select.c index 317891ff8165..4a6b6e4b21cb 100644 --- a/fs/select.c +++ b/fs/select.c @@ -34,29 +34,6 @@ #include <linux/uaccess.h> -__poll_t vfs_poll(struct file *file, struct poll_table_struct *pt) -{ - if (file->f_op->poll) { - return file->f_op->poll(file, pt); - } else if (file_has_poll_mask(file)) { - unsigned int events = poll_requested_events(pt); - struct wait_queue_head *head; - - if (pt && pt->_qproc) { - head = file->f_op->get_poll_head(file, events); - if (!head) - return DEFAULT_POLLMASK; - if (IS_ERR(head)) - return EPOLLERR; - pt->_qproc(file, head, pt); - } - - return file->f_op->poll_mask(file, events); - } else { - return DEFAULT_POLLMASK; - } -} -EXPORT_SYMBOL_GPL(vfs_poll); /* * Estimate expected accuracy in ns from a timeval. diff --git a/fs/timerfd.c b/fs/timerfd.c index d84a2bee4f82..cdad49da3ff7 100644 --- a/fs/timerfd.c +++ b/fs/timerfd.c @@ -226,20 +226,21 @@ static int timerfd_release(struct inode *inode, struct file *file) kfree_rcu(ctx, rcu); return 0; } - -static struct wait_queue_head *timerfd_get_poll_head(struct file *file, - __poll_t eventmask) + +static __poll_t timerfd_poll(struct file *file, poll_table *wait) { struct timerfd_ctx *ctx = file->private_data; + __poll_t events = 0; + unsigned long flags; - return &ctx->wqh; -} + poll_wait(file, &ctx->wqh, wait); -static __poll_t timerfd_poll_mask(struct file *file, __poll_t eventmask) -{ - struct timerfd_ctx *ctx = file->private_data; + spin_lock_irqsave(&ctx->wqh.lock, flags); + if (ctx->ticks) + events |= EPOLLIN; + spin_unlock_irqrestore(&ctx->wqh.lock, flags); - return ctx->ticks ? EPOLLIN : 0; + return events; } static ssize_t timerfd_read(struct file *file, char __user *buf, size_t count, @@ -363,8 +364,7 @@ static long timerfd_ioctl(struct file *file, unsigned int cmd, unsigned long arg static const struct file_operations timerfd_fops = { .release = timerfd_release, - .get_poll_head = timerfd_get_poll_head, - .poll_mask = timerfd_poll_mask, + .poll = timerfd_poll, .read = timerfd_read, .llseek = noop_llseek, .show_fdinfo = timerfd_show, diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index cc414db9da0a..482461d8931d 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -245,7 +245,8 @@ ssize_t af_alg_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags); void af_alg_free_resources(struct af_alg_async_req *areq); void af_alg_async_cb(struct crypto_async_request *_req, int err); -__poll_t af_alg_poll_mask(struct socket *sock, __poll_t events); +__poll_t af_alg_poll(struct file *file, struct socket *sock, + poll_table *wait); struct af_alg_async_req *af_alg_alloc_areq(struct sock *sk, unsigned int areqlen); int af_alg_get_rsgl(struct sock *sk, struct msghdr *msg, int flags, diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 9154570edf29..79226ca8f80f 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1119,8 +1119,8 @@ static inline unsigned int blk_max_size_offset(struct request_queue *q, if (!q->limits.chunk_sectors) return q->limits.max_sectors; - return q->limits.chunk_sectors - - (offset & (q->limits.chunk_sectors - 1)); + return min(q->limits.max_sectors, (unsigned int)(q->limits.chunk_sectors - + (offset & (q->limits.chunk_sectors - 1)))); } static inline unsigned int blk_rq_get_max_sectors(struct request *rq, diff --git a/include/linux/compat.h b/include/linux/compat.h index b1a5562b3215..c68acc47da57 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -72,6 +72,9 @@ */ #ifndef COMPAT_SYSCALL_DEFINEx #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ + __diag_push(); \ + __diag_ignore(GCC, 8, "-Wattribute-alias", \ + "Type aliasing is used to sanitize syscall arguments");\ asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ __attribute__((alias(__stringify(__se_compat_sys##name)))); \ @@ -80,8 +83,11 @@ asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ { \ - return __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\ + long ret = __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\ + __MAP(x,__SC_TEST,__VA_ARGS__); \ + return ret; \ } \ + __diag_pop(); \ static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) #endif /* COMPAT_SYSCALL_DEFINEx */ diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index f1a7492a5cc8..fd282c7d3e5e 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -347,3 +347,28 @@ #if GCC_VERSION >= 50100 #define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1 #endif + +/* + * Turn individual warnings and errors on and off locally, depending + * on version. + */ +#define __diag_GCC(version, severity, s) \ + __diag_GCC_ ## version(__diag_GCC_ ## severity s) + +/* Severity used in pragma directives */ +#define __diag_GCC_ignore ignored +#define __diag_GCC_warn warning +#define __diag_GCC_error error + +/* Compilers before gcc-4.6 do not understand "#pragma GCC diagnostic push" */ +#if GCC_VERSION >= 40600 +#define __diag_str1(s) #s +#define __diag_str(s) __diag_str1(s) +#define __diag(s) _Pragma(__diag_str(GCC diagnostic s)) +#endif + +#if GCC_VERSION >= 80000 +#define __diag_GCC_8(s) __diag(s) +#else +#define __diag_GCC_8(s) +#endif diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index 6b79a9bba9a7..a8ba6b04152c 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -271,4 +271,22 @@ struct ftrace_likely_data { # define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long)) #endif +#ifndef __diag +#define __diag(string) +#endif + +#ifndef __diag_GCC +#define __diag_GCC(version, severity, string) +#endif + +#define __diag_push() __diag(push) +#define __diag_pop() __diag(pop) + +#define __diag_ignore(compiler, version, option, comment) \ + __diag_ ## compiler(version, ignore, option) +#define __diag_warn(compiler, version, option, comment) \ + __diag_ ## compiler(version, warn, option) +#define __diag_error(compiler, version, option, comment) \ + __diag_ ## compiler(version, error, option) + #endif /* __LINUX_COMPILER_TYPES_H */ diff --git a/include/linux/dax.h b/include/linux/dax.h index 3855e3800f48..deb0f663252f 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -135,7 +135,7 @@ void dax_flush(struct dax_device *dax_dev, void *addr, size_t size); ssize_t dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter, const struct iomap_ops *ops); -int dax_iomap_fault(struct vm_fault *vmf, enum page_entry_size pe_size, +vm_fault_t dax_iomap_fault(struct vm_fault *vmf, enum page_entry_size pe_size, pfn_t *pfnp, int *errp, const struct iomap_ops *ops); vm_fault_t dax_finish_sync_fault(struct vm_fault *vmf, enum page_entry_size pe_size, pfn_t pfn); diff --git a/include/linux/fs.h b/include/linux/fs.h index 5c91108846db..d78d146a98da 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1720,8 +1720,6 @@ struct file_operations { int (*iterate) (struct file *, struct dir_context *); int (*iterate_shared) (struct file *, struct dir_context *); __poll_t (*poll) (struct file *, struct poll_table_struct *); - struct wait_queue_head * (*get_poll_head)(struct file *, __poll_t); - __poll_t (*poll_mask) (struct file *, __poll_t); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); int (*mmap) (struct file *, struct vm_area_struct *); diff --git a/include/linux/net.h b/include/linux/net.h index 08b6eb964dd6..6554d3ba4396 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -147,7 +147,6 @@ struct proto_ops { int (*getname) (struct socket *sock, struct sockaddr *addr, int peer); - __poll_t (*poll_mask) (struct socket *sock, __poll_t events); __poll_t (*poll) (struct file *file, struct socket *sock, struct poll_table_struct *wait); int (*ioctl) (struct socket *sock, unsigned int cmd, diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 9206a4fef9ac..cb8d84090cfb 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -234,7 +234,7 @@ struct generic_pm_domain *of_genpd_remove_last(struct device_node *np); int of_genpd_parse_idle_states(struct device_node *dn, struct genpd_power_state **states, int *n); unsigned int of_genpd_opp_to_performance_state(struct device *dev, - struct device_node *opp_node); + struct device_node *np); int genpd_dev_pm_attach(struct device *dev); struct device *genpd_dev_pm_attach_by_id(struct device *dev, @@ -274,9 +274,9 @@ static inline int of_genpd_parse_idle_states(struct device_node *dn, static inline unsigned int of_genpd_opp_to_performance_state(struct device *dev, - struct device_node *opp_node) + struct device_node *np) { - return -ENODEV; + return 0; } static inline int genpd_dev_pm_attach(struct device *dev) diff --git a/include/linux/poll.h b/include/linux/poll.h index fdf86b4cbc71..7e0fdcf905d2 100644 --- a/include/linux/poll.h +++ b/include/linux/poll.h @@ -74,18 +74,18 @@ static inline void init_poll_funcptr(poll_table *pt, poll_queue_proc qproc) pt->_key = ~(__poll_t)0; /* all events enabled */ } -static inline bool file_has_poll_mask(struct file *file) +static inline bool file_can_poll(struct file *file) { - return file->f_op->get_poll_head && file->f_op->poll_mask; + return file->f_op->poll; } -static inline bool file_can_poll(struct file *file) +static inline __poll_t vfs_poll(struct file *file, struct poll_table_struct *pt) { - return file->f_op->poll || file_has_poll_mask(file); + if (unlikely(!file->f_op->poll)) + return DEFAULT_POLLMASK; + return file->f_op->poll(file, pt); } -__poll_t vfs_poll(struct file *file, struct poll_table_struct *pt); - struct poll_table_entry { struct file *filp; __poll_t key; diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index 51f52020ad5f..093aa57120b0 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -9,9 +9,6 @@ #include <asm/io.h> struct scatterlist { -#ifdef CONFIG_DEBUG_SG - unsigned long sg_magic; -#endif unsigned long page_link; unsigned int offset; unsigned int length; @@ -64,7 +61,6 @@ struct sg_table { * */ -#define SG_MAGIC 0x87654321 #define SG_CHAIN 0x01UL #define SG_END 0x02UL @@ -98,7 +94,6 @@ static inline void sg_assign_page(struct scatterlist *sg, struct page *page) */ BUG_ON((unsigned long) page & (SG_CHAIN | SG_END)); #ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); BUG_ON(sg_is_chain(sg)); #endif sg->page_link = page_link | (unsigned long) page; @@ -129,7 +124,6 @@ static inline void sg_set_page(struct scatterlist *sg, struct page *page, static inline struct page *sg_page(struct scatterlist *sg) { #ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); BUG_ON(sg_is_chain(sg)); #endif return (struct page *)((sg)->page_link & ~(SG_CHAIN | SG_END)); @@ -195,9 +189,6 @@ static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents, **/ static inline void sg_mark_end(struct scatterlist *sg) { -#ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); -#endif /* * Set termination bit, clear potential chain bit */ @@ -215,9 +206,6 @@ static inline void sg_mark_end(struct scatterlist *sg) **/ static inline void sg_unmark_end(struct scatterlist *sg) { -#ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); -#endif sg->page_link &= ~SG_END; } @@ -260,12 +248,6 @@ static inline void *sg_virt(struct scatterlist *sg) static inline void sg_init_marker(struct scatterlist *sgl, unsigned int nents) { -#ifdef CONFIG_DEBUG_SG - unsigned int i; - - for (i = 0; i < nents; i++) - sgl[i].sg_magic = SG_MAGIC; -#endif sg_mark_end(&sgl[nents - 1]); } diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index c86885954994..164cdedf6012 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3252,7 +3252,8 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned flags, int *peeked, int *off, int *err); struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock, int *err); -__poll_t datagram_poll_mask(struct socket *sock, __poll_t events); +__poll_t datagram_poll(struct file *file, struct socket *sock, + struct poll_table_struct *wait); int skb_copy_datagram_iter(const struct sk_buff *from, int offset, struct iov_iter *to, int size); static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset, diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index 09fa2c6f0e68..3a1a1dbc6f49 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -155,8 +155,12 @@ struct kmem_cache { #ifdef CONFIG_SYSFS #define SLAB_SUPPORTS_SYSFS +void sysfs_slab_unlink(struct kmem_cache *); void sysfs_slab_release(struct kmem_cache *); #else +static inline void sysfs_slab_unlink(struct kmem_cache *s) +{ +} static inline void sysfs_slab_release(struct kmem_cache *s) { } diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 73810808cdf2..a368a68cb667 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -231,6 +231,9 @@ static inline int is_syscall_trace_event(struct trace_event_call *tp_event) */ #ifndef __SYSCALL_DEFINEx #define __SYSCALL_DEFINEx(x, name, ...) \ + __diag_push(); \ + __diag_ignore(GCC, 8, "-Wattribute-alias", \ + "Type aliasing is used to sanitize syscall arguments");\ asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ __attribute__((alias(__stringify(__se_sys##name)))); \ ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ @@ -243,6 +246,7 @@ static inline int is_syscall_trace_event(struct trace_event_call *tp_event) __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ return ret; \ } \ + __diag_pop(); \ static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) #endif /* __SYSCALL_DEFINEx */ diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 53ce8176c313..ec9d6bc65855 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -271,7 +271,7 @@ int bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, int flags); int bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, int flags); -__poll_t bt_sock_poll_mask(struct socket *sock, __poll_t events); +__poll_t bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait); int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo); int bt_sock_wait_ready(struct sock *sk, unsigned long flags); diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h index b0eaeb02d46d..f4c21b5a1242 100644 --- a/include/net/iucv/af_iucv.h +++ b/include/net/iucv/af_iucv.h @@ -153,6 +153,8 @@ struct iucv_sock_list { atomic_t autobind_name; }; +__poll_t iucv_sock_poll(struct file *file, struct socket *sock, + poll_table *wait); void iucv_sock_link(struct iucv_sock_list *l, struct sock *s); void iucv_sock_unlink(struct iucv_sock_list *l, struct sock *s); void iucv_accept_enqueue(struct sock *parent, struct sock *sk); diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 30b3e2fe240a..8c2caa370e0f 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -109,7 +109,8 @@ int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb); int sctp_inet_listen(struct socket *sock, int backlog); void sctp_write_space(struct sock *sk); void sctp_data_ready(struct sock *sk); -__poll_t sctp_poll_mask(struct socket *sock, __poll_t events); +__poll_t sctp_poll(struct file *file, struct socket *sock, + poll_table *wait); void sctp_sock_rfree(struct sk_buff *skb); void sctp_copy_sock(struct sock *newsk, struct sock *sk, struct sctp_association *asoc); diff --git a/include/net/tcp.h b/include/net/tcp.h index 0448e7c5d2b4..800582b5dd54 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -388,7 +388,8 @@ bool tcp_peer_is_proven(struct request_sock *req, struct dst_entry *dst); void tcp_close(struct sock *sk, long timeout); void tcp_init_sock(struct sock *sk); void tcp_init_transfer(struct sock *sk, int bpf_op); -__poll_t tcp_poll_mask(struct socket *sock, __poll_t events); +__poll_t tcp_poll(struct file *file, struct socket *sock, + struct poll_table_struct *wait); int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); int tcp_setsockopt(struct sock *sk, int level, int optname, diff --git a/include/net/tls.h b/include/net/tls.h index 7f84ea3e217c..70c273777fe9 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -109,7 +109,8 @@ struct tls_sw_context_rx { struct strparser strp; void (*saved_data_ready)(struct sock *sk); - __poll_t (*sk_poll_mask)(struct socket *sock, __poll_t events); + unsigned int (*sk_poll)(struct file *file, struct socket *sock, + struct poll_table_struct *wait); struct sk_buff *recv_pkt; u8 control; bool decrypted; @@ -224,7 +225,8 @@ void tls_sw_free_resources_tx(struct sock *sk); void tls_sw_free_resources_rx(struct sock *sk); int tls_sw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, int flags, int *addr_len); -__poll_t tls_sw_poll_mask(struct socket *sock, __poll_t events); +unsigned int tls_sw_poll(struct file *file, struct socket *sock, + struct poll_table_struct *wait); ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos, struct pipe_inode_info *pipe, size_t len, unsigned int flags); diff --git a/include/net/udp.h b/include/net/udp.h index b1ea8b0f5e6a..81afdacd4fff 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -285,7 +285,7 @@ int udp_init_sock(struct sock *sk); int udp_pre_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len); int __udp_disconnect(struct sock *sk, int flags); int udp_disconnect(struct sock *sk, int flags); -__poll_t udp_poll_mask(struct socket *sock, __poll_t events); +__poll_t udp_poll(struct file *file, struct socket *sock, poll_table *wait); struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb, netdev_features_t features, bool is_ipv6); diff --git a/include/uapi/linux/aio_abi.h b/include/uapi/linux/aio_abi.h index d00221345c19..3c5038b587ba 100644 --- a/include/uapi/linux/aio_abi.h +++ b/include/uapi/linux/aio_abi.h @@ -39,8 +39,10 @@ enum { IOCB_CMD_PWRITE = 1, IOCB_CMD_FSYNC = 2, IOCB_CMD_FDSYNC = 3, - /* 4 was the experimental IOCB_CMD_PREADX */ - IOCB_CMD_POLL = 5, + /* These two are experimental. + * IOCB_CMD_PREADX = 4, + * IOCB_CMD_POLL = 5, + */ IOCB_CMD_NOOP = 6, IOCB_CMD_PREADV = 7, IOCB_CMD_PWRITEV = 8, diff --git a/init/Kconfig b/init/Kconfig index fde3d09e8b27..041f3a022122 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1051,10 +1051,9 @@ config LD_DEAD_CODE_DATA_ELIMINATION depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION depends on EXPERT help - Select this if the architecture wants to do dead code and - data elimination with the linker by compiling with - -ffunction-sections -fdata-sections, and linking with - --gc-sections. + Enable this if you want to do dead code and data elimination with + the linker by compiling with -ffunction-sections -fdata-sections, + and linking with --gc-sections. This can reduce on disk and in-memory size of the kernel code and static data, particularly for small configs and diff --git a/kernel/events/core.c b/kernel/events/core.c index 80cca2b30c4f..8f0434a9951a 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -6482,7 +6482,7 @@ void perf_prepare_sample(struct perf_event_header *header, data->phys_addr = perf_virt_to_phys(data->addr); } -static void __always_inline +static __always_inline void __perf_event_output(struct perf_event *event, struct perf_sample_data *data, struct pt_regs *regs, diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index 3d35d062970d..c253c1b46c6b 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -6,6 +6,7 @@ if HAVE_ARCH_KASAN config KASAN bool "KASan: runtime memory debugger" depends on SLUB || (SLAB && !DEBUG_SLAB) + select SLUB_DEBUG if SLUB select CONSTRUCTORS select STACKDEPOT help diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c index 9bbd9c5d375a..beb14839b41a 100644 --- a/lib/percpu_ida.c +++ b/lib/percpu_ida.c @@ -141,7 +141,7 @@ int percpu_ida_alloc(struct percpu_ida *pool, int state) spin_lock_irqsave(&tags->lock, flags); /* Fastpath */ - if (likely(tags->nr_free >= 0)) { + if (likely(tags->nr_free)) { tag = tags->freelist[--tags->nr_free]; spin_unlock_irqrestore(&tags->lock, flags); return tag; diff --git a/lib/scatterlist.c b/lib/scatterlist.c index 1642fd507a96..7c6096a71704 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -24,9 +24,6 @@ **/ struct scatterlist *sg_next(struct scatterlist *sg) { -#ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); -#endif if (sg_is_last(sg)) return NULL; @@ -111,10 +108,7 @@ struct scatterlist *sg_last(struct scatterlist *sgl, unsigned int nents) for_each_sg(sgl, sg, nents, i) ret = sg; -#ifdef CONFIG_DEBUG_SG - BUG_ON(sgl[0].sg_magic != SG_MAGIC); BUG_ON(!sg_is_last(ret)); -#endif return ret; } EXPORT_SYMBOL(sg_last); diff --git a/lib/test_printf.c b/lib/test_printf.c index b2aa8f514844..cea592f402ed 100644 --- a/lib/test_printf.c +++ b/lib/test_printf.c @@ -260,13 +260,6 @@ plain(void) { int err; - /* - * Make sure crng is ready. Otherwise we get "(ptrval)" instead - * of a hashed address when printing '%p' in plain_hash() and - * plain_format(). - */ - wait_for_random_bytes(); - err = plain_hash(); if (err) { pr_warn("plain 'p' does not appear to be hashed\n"); diff --git a/mm/slab_common.c b/mm/slab_common.c index 890b1f04a03a..2296caf87bfb 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -567,10 +567,14 @@ static int shutdown_cache(struct kmem_cache *s) list_del(&s->list); if (s->flags & SLAB_TYPESAFE_BY_RCU) { +#ifdef SLAB_SUPPORTS_SYSFS + sysfs_slab_unlink(s); +#endif list_add_tail(&s->list, &slab_caches_to_rcu_destroy); schedule_work(&slab_caches_to_rcu_destroy_work); } else { #ifdef SLAB_SUPPORTS_SYSFS + sysfs_slab_unlink(s); sysfs_slab_release(s); #else slab_kmem_cache_release(s); diff --git a/mm/slub.c b/mm/slub.c index a3b8467c14af..51258eff4178 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -5667,7 +5667,6 @@ static void sysfs_slab_remove_workfn(struct work_struct *work) kset_unregister(s->memcg_kset); #endif kobject_uevent(&s->kobj, KOBJ_REMOVE); - kobject_del(&s->kobj); out: kobject_put(&s->kobj); } @@ -5752,6 +5751,12 @@ static void sysfs_slab_remove(struct kmem_cache *s) schedule_work(&s->kobj_remove_work); } +void sysfs_slab_unlink(struct kmem_cache *s) +{ + if (slab_state >= FULL) + kobject_del(&s->kobj); +} + void sysfs_slab_release(struct kmem_cache *s) { if (slab_state >= FULL) diff --git a/mm/vmstat.c b/mm/vmstat.c index 75eda9c2b260..8ba0870ecddd 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1796,11 +1796,9 @@ static void vmstat_update(struct work_struct *w) * to occur in the future. Keep on running the * update worker thread. */ - preempt_disable(); queue_delayed_work_on(smp_processor_id(), mm_percpu_wq, this_cpu_ptr(&vmstat_work), round_jiffies_relative(sysctl_stat_interval)); - preempt_enable(); } } diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 55fdba05d7d9..9b6bc5abe946 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1869,7 +1869,7 @@ static const struct proto_ops atalk_dgram_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = atalk_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = atalk_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = atalk_compat_ioctl, diff --git a/net/atm/common.c b/net/atm/common.c index ff5748b2190f..a7a68e509628 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -647,11 +647,16 @@ out: return error; } -__poll_t vcc_poll_mask(struct socket *sock, __poll_t events) +__poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; - struct atm_vcc *vcc = ATM_SD(sock); - __poll_t mask = 0; + struct atm_vcc *vcc; + __poll_t mask; + + sock_poll_wait(file, sk_sleep(sk), wait); + mask = 0; + + vcc = ATM_SD(sock); /* exceptional events */ if (sk->sk_err) diff --git a/net/atm/common.h b/net/atm/common.h index 526796ad230f..5850649068bb 100644 --- a/net/atm/common.h +++ b/net/atm/common.h @@ -17,7 +17,7 @@ int vcc_connect(struct socket *sock, int itf, short vpi, int vci); int vcc_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags); int vcc_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len); -__poll_t vcc_poll_mask(struct socket *sock, __poll_t events); +__poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait); int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); int vcc_setsockopt(struct socket *sock, int level, int optname, diff --git a/net/atm/pvc.c b/net/atm/pvc.c index 9f75092fe778..2cb10af16afc 100644 --- a/net/atm/pvc.c +++ b/net/atm/pvc.c @@ -113,7 +113,7 @@ static const struct proto_ops pvc_proto_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = pvc_getname, - .poll_mask = vcc_poll_mask, + .poll = vcc_poll, .ioctl = vcc_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = vcc_compat_ioctl, diff --git a/net/atm/svc.c b/net/atm/svc.c index 53f4ad7087b1..2f91b766ac42 100644 --- a/net/atm/svc.c +++ b/net/atm/svc.c @@ -636,7 +636,7 @@ static const struct proto_ops svc_proto_ops = { .socketpair = sock_no_socketpair, .accept = svc_accept, .getname = svc_getname, - .poll_mask = vcc_poll_mask, + .poll = vcc_poll, .ioctl = svc_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = svc_compat_ioctl, diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index d1d2442ce573..c603d33d5410 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -1941,7 +1941,7 @@ static const struct proto_ops ax25_proto_ops = { .socketpair = sock_no_socketpair, .accept = ax25_accept, .getname = ax25_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = ax25_ioctl, .listen = ax25_listen, .shutdown = ax25_shutdown, diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 510ab4f55df5..3264e1873219 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -437,13 +437,16 @@ static inline __poll_t bt_accept_poll(struct sock *parent) return 0; } -__poll_t bt_sock_poll_mask(struct socket *sock, __poll_t events) +__poll_t bt_sock_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; __poll_t mask = 0; BT_DBG("sock %p, sk %p", sock, sk); + poll_wait(file, sk_sleep(sk), wait); + if (sk->sk_state == BT_LISTEN) return bt_accept_poll(sk); @@ -475,7 +478,7 @@ __poll_t bt_sock_poll_mask(struct socket *sock, __poll_t events) return mask; } -EXPORT_SYMBOL(bt_sock_poll_mask); +EXPORT_SYMBOL(bt_sock_poll); int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index d6c099861538..1506e1632394 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -1975,7 +1975,7 @@ static const struct proto_ops hci_sock_ops = { .sendmsg = hci_sock_sendmsg, .recvmsg = hci_sock_recvmsg, .ioctl = hci_sock_ioctl, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = hci_sock_setsockopt, diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 742a190034e6..686bdc6b35b0 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -1653,7 +1653,7 @@ static const struct proto_ops l2cap_sock_ops = { .getname = l2cap_sock_getname, .sendmsg = l2cap_sock_sendmsg, .recvmsg = l2cap_sock_recvmsg, - .poll_mask = bt_sock_poll_mask, + .poll = bt_sock_poll, .ioctl = bt_sock_ioctl, .mmap = sock_no_mmap, .socketpair = sock_no_socketpair, diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index 1cf57622473a..d606e9212291 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -1049,7 +1049,7 @@ static const struct proto_ops rfcomm_sock_ops = { .setsockopt = rfcomm_sock_setsockopt, .getsockopt = rfcomm_sock_getsockopt, .ioctl = rfcomm_sock_ioctl, - .poll_mask = bt_sock_poll_mask, + .poll = bt_sock_poll, .socketpair = sock_no_socketpair, .mmap = sock_no_mmap }; diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index d60dbc61d170..413b8ee49fec 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -1197,7 +1197,7 @@ static const struct proto_ops sco_sock_ops = { .getname = sco_sock_getname, .sendmsg = sco_sock_sendmsg, .recvmsg = sco_sock_recvmsg, - .poll_mask = bt_sock_poll_mask, + .poll = bt_sock_poll, .ioctl = bt_sock_ioctl, .mmap = sock_no_mmap, .socketpair = sock_no_socketpair, diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index c7991867d622..a6fb1b3bcad9 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -934,11 +934,15 @@ static int caif_release(struct socket *sock) } /* Copied from af_unix.c:unix_poll(), added CAIF tx_flow handling */ -static __poll_t caif_poll_mask(struct socket *sock, __poll_t events) +static __poll_t caif_poll(struct file *file, + struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; + __poll_t mask; struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); - __poll_t mask = 0; + + sock_poll_wait(file, sk_sleep(sk), wait); + mask = 0; /* exceptional events? */ if (sk->sk_err) @@ -972,7 +976,7 @@ static const struct proto_ops caif_seqpacket_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = caif_poll_mask, + .poll = caif_poll, .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, @@ -993,7 +997,7 @@ static const struct proto_ops caif_stream_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = caif_poll_mask, + .poll = caif_poll, .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/can/bcm.c b/net/can/bcm.c index 9393f25df08d..0af8f0db892a 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1660,7 +1660,7 @@ static const struct proto_ops bcm_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = can_ioctl, /* use can_ioctl() from af_can.c */ .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/can/raw.c b/net/can/raw.c index fd7e2f49ea6a..1051eee82581 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -843,7 +843,7 @@ static const struct proto_ops raw_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = raw_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = can_ioctl, /* use can_ioctl() from af_can.c */ .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/core/datagram.c b/net/core/datagram.c index f19bf3dc2bd6..9938952c5c78 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -819,8 +819,9 @@ EXPORT_SYMBOL(skb_copy_and_csum_datagram_msg); /** * datagram_poll - generic datagram poll + * @file: file struct * @sock: socket - * @events to wait for + * @wait: poll table * * Datagram poll: Again totally generic. This also handles * sequenced packet sockets providing the socket receive queue @@ -830,10 +831,14 @@ EXPORT_SYMBOL(skb_copy_and_csum_datagram_msg); * and you use a different write policy from sock_writeable() * then please supply your own write_space callback. */ -__poll_t datagram_poll_mask(struct socket *sock, __poll_t events) +__poll_t datagram_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; - __poll_t mask = 0; + __poll_t mask; + + sock_poll_wait(file, sk_sleep(sk), wait); + mask = 0; /* exceptional events? */ if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue)) @@ -866,4 +871,4 @@ __poll_t datagram_poll_mask(struct socket *sock, __poll_t events) return mask; } -EXPORT_SYMBOL(datagram_poll_mask); +EXPORT_SYMBOL(datagram_poll); diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index 0ea2ee56ac1b..f91e3816806b 100644 --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -316,7 +316,8 @@ int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, int flags, int *addr_len); void dccp_shutdown(struct sock *sk, int how); int inet_dccp_listen(struct socket *sock, int backlog); -__poll_t dccp_poll_mask(struct socket *sock, __poll_t events); +__poll_t dccp_poll(struct file *file, struct socket *sock, + poll_table *wait); int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len); void dccp_req_err(struct sock *sk, u64 seq); diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index a9e478cd3787..b08feb219b44 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -984,7 +984,7 @@ static const struct proto_ops inet_dccp_ops = { .accept = inet_accept, .getname = inet_getname, /* FIXME: work on tcp_poll to rename it to inet_csk_poll */ - .poll_mask = dccp_poll_mask, + .poll = dccp_poll, .ioctl = inet_ioctl, /* FIXME: work on inet_listen to rename it to sock_common_listen */ .listen = inet_dccp_listen, diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 17fc4e0166ba..6344f1b18a6a 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1070,7 +1070,7 @@ static const struct proto_ops inet6_dccp_ops = { .socketpair = sock_no_socketpair, .accept = inet_accept, .getname = inet6_getname, - .poll_mask = dccp_poll_mask, + .poll = dccp_poll, .ioctl = inet6_ioctl, .listen = inet_dccp_listen, .shutdown = inet_shutdown, diff --git a/net/dccp/proto.c b/net/dccp/proto.c index ca21c1c76da0..0d56e36a6db7 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -312,11 +312,20 @@ int dccp_disconnect(struct sock *sk, int flags) EXPORT_SYMBOL_GPL(dccp_disconnect); -__poll_t dccp_poll_mask(struct socket *sock, __poll_t events) +/* + * Wait for a DCCP event. + * + * Note that we don't need to lock the socket, as the upper poll layers + * take care of normal races (between the test and the event) and we don't + * go look at any of the socket buffers directly. + */ +__poll_t dccp_poll(struct file *file, struct socket *sock, + poll_table *wait) { __poll_t mask; struct sock *sk = sock->sk; + sock_poll_wait(file, sk_sleep(sk), wait); if (sk->sk_state == DCCP_LISTEN) return inet_csk_listen_poll(sk); @@ -358,7 +367,7 @@ __poll_t dccp_poll_mask(struct socket *sock, __poll_t events) return mask; } -EXPORT_SYMBOL_GPL(dccp_poll_mask); +EXPORT_SYMBOL_GPL(dccp_poll); int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg) { diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 9a686d890bfa..7d6ff983ba2c 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -1207,11 +1207,11 @@ static int dn_getname(struct socket *sock, struct sockaddr *uaddr,int peer) } -static __poll_t dn_poll_mask(struct socket *sock, __poll_t events) +static __poll_t dn_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct dn_scp *scp = DN_SK(sk); - __poll_t mask = datagram_poll_mask(sock, events); + __poll_t mask = datagram_poll(file, sock, wait); if (!skb_queue_empty(&scp->other_receive_queue)) mask |= EPOLLRDBAND; @@ -2331,7 +2331,7 @@ static const struct proto_ops dn_proto_ops = { .socketpair = sock_no_socketpair, .accept = dn_accept, .getname = dn_getname, - .poll_mask = dn_poll_mask, + .poll = dn_poll, .ioctl = dn_ioctl, .listen = dn_listen, .shutdown = dn_shutdown, diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index a0768d2759b8..a60658c85a9a 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -423,7 +423,7 @@ static const struct proto_ops ieee802154_raw_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = ieee802154_sock_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, @@ -969,7 +969,7 @@ static const struct proto_ops ieee802154_dgram_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = ieee802154_sock_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 15e125558c76..b403499fdabe 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -986,7 +986,7 @@ const struct proto_ops inet_stream_ops = { .socketpair = sock_no_socketpair, .accept = inet_accept, .getname = inet_getname, - .poll_mask = tcp_poll_mask, + .poll = tcp_poll, .ioctl = inet_ioctl, .listen = inet_listen, .shutdown = inet_shutdown, @@ -1021,7 +1021,7 @@ const struct proto_ops inet_dgram_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = inet_getname, - .poll_mask = udp_poll_mask, + .poll = udp_poll, .ioctl = inet_ioctl, .listen = sock_no_listen, .shutdown = inet_shutdown, @@ -1042,7 +1042,7 @@ EXPORT_SYMBOL(inet_dgram_ops); /* * For SOCK_RAW sockets; should be the same as inet_dgram_ops but without - * udp_poll_mask + * udp_poll */ static const struct proto_ops inet_sockraw_ops = { .family = PF_INET, @@ -1053,7 +1053,7 @@ static const struct proto_ops inet_sockraw_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = inet_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = inet_ioctl, .listen = sock_no_listen, .shutdown = inet_shutdown, diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 141acd92e58a..e7b53d2a971f 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -494,21 +494,32 @@ static inline bool tcp_stream_is_readable(const struct tcp_sock *tp, } /* - * Socket is not locked. We are protected from async events by poll logic and - * correct handling of state changes made by other threads is impossible in - * any case. + * Wait for a TCP event. + * + * Note that we don't need to lock the socket, as the upper poll layers + * take care of normal races (between the test and the event) and we don't + * go look at any of the socket buffers directly. */ -__poll_t tcp_poll_mask(struct socket *sock, __poll_t events) +__poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait) { + __poll_t mask; struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); - __poll_t mask = 0; int state; + sock_poll_wait(file, sk_sleep(sk), wait); + state = inet_sk_state_load(sk); if (state == TCP_LISTEN) return inet_csk_listen_poll(sk); + /* Socket is not locked. We are protected from async events + * by poll logic and correct handling of state changes + * made by other threads is impossible in any case. + */ + + mask = 0; + /* * EPOLLHUP is certainly not done right. But poll() doesn't * have a notion of HUP in just one direction, and for a @@ -589,7 +600,7 @@ __poll_t tcp_poll_mask(struct socket *sock, __poll_t events) return mask; } -EXPORT_SYMBOL(tcp_poll_mask); +EXPORT_SYMBOL(tcp_poll); int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg) { diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 9bb27df4dac5..24e116ddae79 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2591,7 +2591,7 @@ int compat_udp_getsockopt(struct sock *sk, int level, int optname, * udp_poll - wait for a UDP event. * @file - file struct * @sock - socket - * @events - events to wait for + * @wait - poll table * * This is same as datagram poll, except for the special case of * blocking sockets. If application is using a blocking fd @@ -2600,23 +2600,23 @@ int compat_udp_getsockopt(struct sock *sk, int level, int optname, * but then block when reading it. Add special case code * to work around these arguably broken applications. */ -__poll_t udp_poll_mask(struct socket *sock, __poll_t events) +__poll_t udp_poll(struct file *file, struct socket *sock, poll_table *wait) { - __poll_t mask = datagram_poll_mask(sock, events); + __poll_t mask = datagram_poll(file, sock, wait); struct sock *sk = sock->sk; if (!skb_queue_empty(&udp_sk(sk)->reader_queue)) mask |= EPOLLIN | EPOLLRDNORM; /* Check for false positives due to checksum errors */ - if ((mask & EPOLLRDNORM) && !(sock->file->f_flags & O_NONBLOCK) && + if ((mask & EPOLLRDNORM) && !(file->f_flags & O_NONBLOCK) && !(sk->sk_shutdown & RCV_SHUTDOWN) && first_packet_length(sk) == -1) mask &= ~(EPOLLIN | EPOLLRDNORM); return mask; } -EXPORT_SYMBOL(udp_poll_mask); +EXPORT_SYMBOL(udp_poll); int udp_abort(struct sock *sk, int err) { diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 74f2a261e8df..9ed0eae91758 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -570,7 +570,7 @@ const struct proto_ops inet6_stream_ops = { .socketpair = sock_no_socketpair, /* a do nothing */ .accept = inet_accept, /* ok */ .getname = inet6_getname, - .poll_mask = tcp_poll_mask, /* ok */ + .poll = tcp_poll, /* ok */ .ioctl = inet6_ioctl, /* must change */ .listen = inet_listen, /* ok */ .shutdown = inet_shutdown, /* ok */ @@ -603,7 +603,7 @@ const struct proto_ops inet6_dgram_ops = { .socketpair = sock_no_socketpair, /* a do nothing */ .accept = sock_no_accept, /* a do nothing */ .getname = inet6_getname, - .poll_mask = udp_poll_mask, /* ok */ + .poll = udp_poll, /* ok */ .ioctl = inet6_ioctl, /* must change */ .listen = sock_no_listen, /* ok */ .shutdown = inet_shutdown, /* ok */ diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index ce6f0d15b5dd..afc307c89d1a 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1334,7 +1334,7 @@ void raw6_proc_exit(void) } #endif /* CONFIG_PROC_FS */ -/* Same as inet6_dgram_ops, sans udp_poll_mask. */ +/* Same as inet6_dgram_ops, sans udp_poll. */ const struct proto_ops inet6_sockraw_ops = { .family = PF_INET6, .owner = THIS_MODULE, @@ -1344,7 +1344,7 @@ const struct proto_ops inet6_sockraw_ops = { .socketpair = sock_no_socketpair, /* a do nothing */ .accept = sock_no_accept, /* a do nothing */ .getname = inet6_getname, - .poll_mask = datagram_poll_mask, /* ok */ + .poll = datagram_poll, /* ok */ .ioctl = inet6_ioctl, /* must change */ .listen = sock_no_listen, /* ok */ .shutdown = inet_shutdown, /* ok */ diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index 68e86257a549..893a022f9620 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -1488,11 +1488,14 @@ static inline __poll_t iucv_accept_poll(struct sock *parent) return 0; } -static __poll_t iucv_sock_poll_mask(struct socket *sock, __poll_t events) +__poll_t iucv_sock_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; __poll_t mask = 0; + sock_poll_wait(file, sk_sleep(sk), wait); + if (sk->sk_state == IUCV_LISTEN) return iucv_accept_poll(sk); @@ -2385,7 +2388,7 @@ static const struct proto_ops iucv_sock_ops = { .getname = iucv_sock_getname, .sendmsg = iucv_sock_sendmsg, .recvmsg = iucv_sock_recvmsg, - .poll_mask = iucv_sock_poll_mask, + .poll = iucv_sock_poll, .ioctl = sock_no_ioctl, .mmap = sock_no_mmap, .socketpair = sock_no_socketpair, diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index 84b7d5c6fec8..d3601d421571 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -1336,9 +1336,9 @@ static void init_kcm_sock(struct kcm_sock *kcm, struct kcm_mux *mux) struct list_head *head; int index = 0; - /* For SOCK_SEQPACKET sock type, datagram_poll_mask checks the sk_state, - * so we set sk_state, otherwise epoll_wait always returns right away - * with EPOLLHUP + /* For SOCK_SEQPACKET sock type, datagram_poll checks the sk_state, so + * we set sk_state, otherwise epoll_wait always returns right away with + * EPOLLHUP */ kcm->sk.sk_state = TCP_ESTABLISHED; @@ -1903,7 +1903,7 @@ static const struct proto_ops kcm_dgram_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = kcm_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, @@ -1924,7 +1924,7 @@ static const struct proto_ops kcm_seqpacket_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = kcm_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/key/af_key.c b/net/key/af_key.c index 8bdc1cbe490a..5e1d2946ffbf 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -3751,7 +3751,7 @@ static const struct proto_ops pfkey_ops = { /* Now the operations that really occur. */ .release = pfkey_release, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .sendmsg = pfkey_sendmsg, .recvmsg = pfkey_recvmsg, }; diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 181073bf6925..a9c05b2bc1b0 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -613,7 +613,7 @@ static const struct proto_ops l2tp_ip_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = l2tp_ip_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = inet_ioctl, .listen = sock_no_listen, .shutdown = inet_shutdown, diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 336e4c00abbc..957369192ca1 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -754,7 +754,7 @@ static const struct proto_ops l2tp_ip6_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = l2tp_ip6_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = inet6_ioctl, .listen = sock_no_listen, .shutdown = inet_shutdown, diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 55188382845c..e398797878a9 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -1818,7 +1818,7 @@ static const struct proto_ops pppol2tp_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = pppol2tp_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = pppol2tp_setsockopt, diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 804de8490186..1beeea9549fa 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -1192,7 +1192,7 @@ static const struct proto_ops llc_ui_ops = { .socketpair = sock_no_socketpair, .accept = llc_ui_accept, .getname = llc_ui_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = llc_ui_ioctl, .listen = llc_ui_listen, .shutdown = llc_ui_shutdown, diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 1189b84413d5..393573a99a5a 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -2658,7 +2658,7 @@ static const struct proto_ops netlink_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = netlink_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = netlink_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 93fbcafbf388..03f37c4e64fe 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1355,7 +1355,7 @@ static const struct proto_ops nr_proto_ops = { .socketpair = sock_no_socketpair, .accept = nr_accept, .getname = nr_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = nr_ioctl, .listen = nr_listen, .shutdown = sock_no_shutdown, diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index ab5bb14b49af..ea0c0c6f1874 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -548,13 +548,16 @@ static inline __poll_t llcp_accept_poll(struct sock *parent) return 0; } -static __poll_t llcp_sock_poll_mask(struct socket *sock, __poll_t events) +static __poll_t llcp_sock_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; __poll_t mask = 0; pr_debug("%p\n", sk); + sock_poll_wait(file, sk_sleep(sk), wait); + if (sk->sk_state == LLCP_LISTEN) return llcp_accept_poll(sk); @@ -896,7 +899,7 @@ static const struct proto_ops llcp_sock_ops = { .socketpair = sock_no_socketpair, .accept = llcp_sock_accept, .getname = llcp_sock_getname, - .poll_mask = llcp_sock_poll_mask, + .poll = llcp_sock_poll, .ioctl = sock_no_ioctl, .listen = llcp_sock_listen, .shutdown = sock_no_shutdown, @@ -916,7 +919,7 @@ static const struct proto_ops llcp_rawsock_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = llcp_sock_getname, - .poll_mask = llcp_sock_poll_mask, + .poll = llcp_sock_poll, .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c index 60c322531c49..e2188deb08dc 100644 --- a/net/nfc/rawsock.c +++ b/net/nfc/rawsock.c @@ -284,7 +284,7 @@ static const struct proto_ops rawsock_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, @@ -304,7 +304,7 @@ static const struct proto_ops rawsock_raw_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index ff8e7e245c37..57634bc3da74 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -4076,11 +4076,12 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd, return 0; } -static __poll_t packet_poll_mask(struct socket *sock, __poll_t events) +static __poll_t packet_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; struct packet_sock *po = pkt_sk(sk); - __poll_t mask = datagram_poll_mask(sock, events); + __poll_t mask = datagram_poll(file, sock, wait); spin_lock_bh(&sk->sk_receive_queue.lock); if (po->rx_ring.pg_vec) { @@ -4422,7 +4423,7 @@ static const struct proto_ops packet_ops_spkt = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = packet_getname_spkt, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = packet_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, @@ -4443,7 +4444,7 @@ static const struct proto_ops packet_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = packet_getname, - .poll_mask = packet_poll_mask, + .poll = packet_poll, .ioctl = packet_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/net/phonet/socket.c b/net/phonet/socket.c index c295c4e20f01..30187990257f 100644 --- a/net/phonet/socket.c +++ b/net/phonet/socket.c @@ -340,12 +340,15 @@ static int pn_socket_getname(struct socket *sock, struct sockaddr *addr, return sizeof(struct sockaddr_pn); } -static __poll_t pn_socket_poll_mask(struct socket *sock, __poll_t events) +static __poll_t pn_socket_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; struct pep_sock *pn = pep_sk(sk); __poll_t mask = 0; + poll_wait(file, sk_sleep(sk), wait); + if (sk->sk_state == TCP_CLOSE) return EPOLLERR; if (!skb_queue_empty(&sk->sk_receive_queue)) @@ -445,7 +448,7 @@ const struct proto_ops phonet_dgram_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = pn_socket_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = pn_socket_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, @@ -470,7 +473,7 @@ const struct proto_ops phonet_stream_ops = { .socketpair = sock_no_socketpair, .accept = pn_socket_accept, .getname = pn_socket_getname, - .poll_mask = pn_socket_poll_mask, + .poll = pn_socket_poll, .ioctl = pn_socket_ioctl, .listen = pn_socket_listen, .shutdown = sock_no_shutdown, diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index 1b5025ea5b04..2aa07b547b16 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -1023,7 +1023,7 @@ static const struct proto_ops qrtr_proto_ops = { .recvmsg = qrtr_recvmsg, .getname = qrtr_getname, .ioctl = qrtr_ioctl, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, .getsockopt = sock_no_getsockopt, diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index ebe42e7eb456..d00a0ef39a56 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1470,7 +1470,7 @@ static const struct proto_ops rose_proto_ops = { .socketpair = sock_no_socketpair, .accept = rose_accept, .getname = rose_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = rose_ioctl, .listen = rose_listen, .shutdown = sock_no_shutdown, diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index 3b1ac93efee2..2b463047dd7b 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -734,11 +734,15 @@ static int rxrpc_getsockopt(struct socket *sock, int level, int optname, /* * permit an RxRPC socket to be polled */ -static __poll_t rxrpc_poll_mask(struct socket *sock, __poll_t events) +static __poll_t rxrpc_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; struct rxrpc_sock *rx = rxrpc_sk(sk); - __poll_t mask = 0; + __poll_t mask; + + sock_poll_wait(file, sk_sleep(sk), wait); + mask = 0; /* the socket is readable if there are any messages waiting on the Rx * queue */ @@ -945,7 +949,7 @@ static const struct proto_ops rxrpc_rpc_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = rxrpc_poll_mask, + .poll = rxrpc_poll, .ioctl = sock_no_ioctl, .listen = rxrpc_listen, .shutdown = rxrpc_shutdown, diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index 7339918a805d..0cd2e764f47f 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -1010,7 +1010,7 @@ static const struct proto_ops inet6_seqpacket_ops = { .socketpair = sock_no_socketpair, .accept = inet_accept, .getname = sctp_getname, - .poll_mask = sctp_poll_mask, + .poll = sctp_poll, .ioctl = inet6_ioctl, .listen = sctp_inet_listen, .shutdown = inet_shutdown, diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 5dffbc493008..67f73d3a1356 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -1016,7 +1016,7 @@ static const struct proto_ops inet_seqpacket_ops = { .socketpair = sock_no_socketpair, .accept = inet_accept, .getname = inet_getname, /* Semantics are different. */ - .poll_mask = sctp_poll_mask, + .poll = sctp_poll, .ioctl = inet_ioctl, .listen = sctp_inet_listen, .shutdown = inet_shutdown, /* Looks harmless. */ diff --git a/net/sctp/socket.c b/net/sctp/socket.c index d20f7addee19..ce620e878538 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -7717,12 +7717,14 @@ out: * here, again, by modeling the current TCP/UDP code. We don't have * a good way to test with it yet. */ -__poll_t sctp_poll_mask(struct socket *sock, __poll_t events) +__poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; struct sctp_sock *sp = sctp_sk(sk); __poll_t mask; + poll_wait(file, sk_sleep(sk), wait); + sock_rps_record_flow(sk); /* A TCP-style listening socket becomes readable when the accept queue diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index da7f02edcd37..973b4471b532 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1273,7 +1273,8 @@ static __poll_t smc_accept_poll(struct sock *parent) return mask; } -static __poll_t smc_poll_mask(struct socket *sock, __poll_t events) +static __poll_t smc_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; __poll_t mask = 0; @@ -1289,7 +1290,7 @@ static __poll_t smc_poll_mask(struct socket *sock, __poll_t events) if ((sk->sk_state == SMC_INIT) || smc->use_fallback) { /* delegate to CLC child sock */ release_sock(sk); - mask = smc->clcsock->ops->poll_mask(smc->clcsock, events); + mask = smc->clcsock->ops->poll(file, smc->clcsock, wait); lock_sock(sk); sk->sk_err = smc->clcsock->sk->sk_err; if (sk->sk_err) { @@ -1307,6 +1308,11 @@ static __poll_t smc_poll_mask(struct socket *sock, __poll_t events) } } } else { + if (sk->sk_state != SMC_CLOSED) { + release_sock(sk); + sock_poll_wait(file, sk_sleep(sk), wait); + lock_sock(sk); + } if (sk->sk_err) mask |= EPOLLERR; if ((sk->sk_shutdown == SHUTDOWN_MASK) || @@ -1619,7 +1625,7 @@ static const struct proto_ops smc_sock_ops = { .socketpair = sock_no_socketpair, .accept = smc_accept, .getname = smc_getname, - .poll_mask = smc_poll_mask, + .poll = smc_poll, .ioctl = smc_ioctl, .listen = smc_listen, .shutdown = smc_shutdown, diff --git a/net/socket.c b/net/socket.c index 8a109012608a..85633622c94d 100644 --- a/net/socket.c +++ b/net/socket.c @@ -117,10 +117,8 @@ static ssize_t sock_write_iter(struct kiocb *iocb, struct iov_iter *from); static int sock_mmap(struct file *file, struct vm_area_struct *vma); static int sock_close(struct inode *inode, struct file *file); -static struct wait_queue_head *sock_get_poll_head(struct file *file, - __poll_t events); -static __poll_t sock_poll_mask(struct file *file, __poll_t); -static __poll_t sock_poll(struct file *file, struct poll_table_struct *wait); +static __poll_t sock_poll(struct file *file, + struct poll_table_struct *wait); static long sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg); #ifdef CONFIG_COMPAT static long compat_sock_ioctl(struct file *file, @@ -143,8 +141,6 @@ static const struct file_operations socket_file_ops = { .llseek = no_llseek, .read_iter = sock_read_iter, .write_iter = sock_write_iter, - .get_poll_head = sock_get_poll_head, - .poll_mask = sock_poll_mask, .poll = sock_poll, .unlocked_ioctl = sock_ioctl, #ifdef CONFIG_COMPAT @@ -1130,48 +1126,16 @@ out_release: } EXPORT_SYMBOL(sock_create_lite); -static struct wait_queue_head *sock_get_poll_head(struct file *file, - __poll_t events) -{ - struct socket *sock = file->private_data; - - if (!sock->ops->poll_mask) - return NULL; - sock_poll_busy_loop(sock, events); - return sk_sleep(sock->sk); -} - -static __poll_t sock_poll_mask(struct file *file, __poll_t events) -{ - struct socket *sock = file->private_data; - - /* - * We need to be sure we are in sync with the socket flags modification. - * - * This memory barrier is paired in the wq_has_sleeper. - */ - smp_mb(); - - /* this socket can poll_ll so tell the system call */ - return sock->ops->poll_mask(sock, events) | - (sk_can_busy_loop(sock->sk) ? POLL_BUSY_LOOP : 0); -} - /* No kernel lock held - perfect */ static __poll_t sock_poll(struct file *file, poll_table *wait) { struct socket *sock = file->private_data; - __poll_t events = poll_requested_events(wait), mask = 0; - - if (sock->ops->poll) { - sock_poll_busy_loop(sock, events); - mask = sock->ops->poll(file, sock, wait); - } else if (sock->ops->poll_mask) { - sock_poll_wait(file, sock_get_poll_head(file, events), wait); - mask = sock->ops->poll_mask(sock, events); - } + __poll_t events = poll_requested_events(wait); - return mask | sock_poll_busy_flag(sock); + sock_poll_busy_loop(sock, events); + if (!sock->ops->poll) + return 0; + return sock->ops->poll(file, sock, wait) | sock_poll_busy_flag(sock); } static int sock_mmap(struct file *file, struct vm_area_struct *vma) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 14a5d055717d..930852c54d7a 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -692,9 +692,10 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr, } /** - * tipc_poll - read pollmask + * tipc_poll - read and possibly block on pollmask * @file: file structure associated with the socket * @sock: socket for which to calculate the poll bits + * @wait: ??? * * Returns pollmask value * @@ -708,12 +709,15 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr, * imply that the operation will succeed, merely that it should be performed * and will not block. */ -static __poll_t tipc_poll_mask(struct socket *sock, __poll_t events) +static __poll_t tipc_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); __poll_t revents = 0; + sock_poll_wait(file, sk_sleep(sk), wait); + if (sk->sk_shutdown & RCV_SHUTDOWN) revents |= EPOLLRDHUP | EPOLLIN | EPOLLRDNORM; if (sk->sk_shutdown == SHUTDOWN_MASK) @@ -3033,7 +3037,7 @@ static const struct proto_ops msg_ops = { .socketpair = tipc_socketpair, .accept = sock_no_accept, .getname = tipc_getname, - .poll_mask = tipc_poll_mask, + .poll = tipc_poll, .ioctl = tipc_ioctl, .listen = sock_no_listen, .shutdown = tipc_shutdown, @@ -3054,7 +3058,7 @@ static const struct proto_ops packet_ops = { .socketpair = tipc_socketpair, .accept = tipc_accept, .getname = tipc_getname, - .poll_mask = tipc_poll_mask, + .poll = tipc_poll, .ioctl = tipc_ioctl, .listen = tipc_listen, .shutdown = tipc_shutdown, @@ -3075,7 +3079,7 @@ static const struct proto_ops stream_ops = { .socketpair = tipc_socketpair, .accept = tipc_accept, .getname = tipc_getname, - .poll_mask = tipc_poll_mask, + .poll = tipc_poll, .ioctl = tipc_ioctl, .listen = tipc_listen, .shutdown = tipc_shutdown, diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index a127d61e8af9..301f22430469 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -712,7 +712,7 @@ static int __init tls_register(void) build_protos(tls_prots[TLSV4], &tcp_prot); tls_sw_proto_ops = inet_stream_ops; - tls_sw_proto_ops.poll_mask = tls_sw_poll_mask; + tls_sw_proto_ops.poll = tls_sw_poll; tls_sw_proto_ops.splice_read = tls_sw_splice_read; #ifdef CONFIG_TLS_DEVICE diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index f127fac88acf..d2380548f8f6 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -919,22 +919,23 @@ splice_read_end: return copied ? : err; } -__poll_t tls_sw_poll_mask(struct socket *sock, __poll_t events) +unsigned int tls_sw_poll(struct file *file, struct socket *sock, + struct poll_table_struct *wait) { + unsigned int ret; struct sock *sk = sock->sk; struct tls_context *tls_ctx = tls_get_ctx(sk); struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx); - __poll_t mask; - /* Grab EPOLLOUT and EPOLLHUP from the underlying socket */ - mask = ctx->sk_poll_mask(sock, events); + /* Grab POLLOUT and POLLHUP from the underlying socket */ + ret = ctx->sk_poll(file, sock, wait); - /* Clear EPOLLIN bits, and set based on recv_pkt */ - mask &= ~(EPOLLIN | EPOLLRDNORM); + /* Clear POLLIN bits, and set based on recv_pkt */ + ret &= ~(POLLIN | POLLRDNORM); if (ctx->recv_pkt) - mask |= EPOLLIN | EPOLLRDNORM; + ret |= POLLIN | POLLRDNORM; - return mask; + return ret; } static int tls_read_size(struct strparser *strp, struct sk_buff *skb) @@ -1191,7 +1192,7 @@ int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx) sk->sk_data_ready = tls_data_ready; write_unlock_bh(&sk->sk_callback_lock); - sw_ctx_rx->sk_poll_mask = sk->sk_socket->ops->poll_mask; + sw_ctx_rx->sk_poll = sk->sk_socket->ops->poll; strp_check_rcv(&sw_ctx_rx->strp); } diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 95b02a71fd47..e5473c03d667 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -638,8 +638,9 @@ static int unix_stream_connect(struct socket *, struct sockaddr *, static int unix_socketpair(struct socket *, struct socket *); static int unix_accept(struct socket *, struct socket *, int, bool); static int unix_getname(struct socket *, struct sockaddr *, int); -static __poll_t unix_poll_mask(struct socket *, __poll_t); -static __poll_t unix_dgram_poll_mask(struct socket *, __poll_t); +static __poll_t unix_poll(struct file *, struct socket *, poll_table *); +static __poll_t unix_dgram_poll(struct file *, struct socket *, + poll_table *); static int unix_ioctl(struct socket *, unsigned int, unsigned long); static int unix_shutdown(struct socket *, int); static int unix_stream_sendmsg(struct socket *, struct msghdr *, size_t); @@ -680,7 +681,7 @@ static const struct proto_ops unix_stream_ops = { .socketpair = unix_socketpair, .accept = unix_accept, .getname = unix_getname, - .poll_mask = unix_poll_mask, + .poll = unix_poll, .ioctl = unix_ioctl, .listen = unix_listen, .shutdown = unix_shutdown, @@ -703,7 +704,7 @@ static const struct proto_ops unix_dgram_ops = { .socketpair = unix_socketpair, .accept = sock_no_accept, .getname = unix_getname, - .poll_mask = unix_dgram_poll_mask, + .poll = unix_dgram_poll, .ioctl = unix_ioctl, .listen = sock_no_listen, .shutdown = unix_shutdown, @@ -725,7 +726,7 @@ static const struct proto_ops unix_seqpacket_ops = { .socketpair = unix_socketpair, .accept = unix_accept, .getname = unix_getname, - .poll_mask = unix_dgram_poll_mask, + .poll = unix_dgram_poll, .ioctl = unix_ioctl, .listen = unix_listen, .shutdown = unix_shutdown, @@ -2629,10 +2630,13 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return err; } -static __poll_t unix_poll_mask(struct socket *sock, __poll_t events) +static __poll_t unix_poll(struct file *file, struct socket *sock, poll_table *wait) { struct sock *sk = sock->sk; - __poll_t mask = 0; + __poll_t mask; + + sock_poll_wait(file, sk_sleep(sk), wait); + mask = 0; /* exceptional events? */ if (sk->sk_err) @@ -2661,11 +2665,15 @@ static __poll_t unix_poll_mask(struct socket *sock, __poll_t events) return mask; } -static __poll_t unix_dgram_poll_mask(struct socket *sock, __poll_t events) +static __poll_t unix_dgram_poll(struct file *file, struct socket *sock, + poll_table *wait) { struct sock *sk = sock->sk, *other; - int writable; - __poll_t mask = 0; + unsigned int writable; + __poll_t mask; + + sock_poll_wait(file, sk_sleep(sk), wait); + mask = 0; /* exceptional events? */ if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue)) @@ -2691,7 +2699,7 @@ static __poll_t unix_dgram_poll_mask(struct socket *sock, __poll_t events) } /* No write status requested, avoid expensive OUT tests. */ - if (!(events & (EPOLLWRBAND|EPOLLWRNORM|EPOLLOUT))) + if (!(poll_requested_events(wait) & (EPOLLWRBAND|EPOLLWRNORM|EPOLLOUT))) return mask; writable = unix_writable(sk); diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index bb5d5fa68c35..c1076c19b858 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -850,11 +850,18 @@ static int vsock_shutdown(struct socket *sock, int mode) return err; } -static __poll_t vsock_poll_mask(struct socket *sock, __poll_t events) +static __poll_t vsock_poll(struct file *file, struct socket *sock, + poll_table *wait) { - struct sock *sk = sock->sk; - struct vsock_sock *vsk = vsock_sk(sk); - __poll_t mask = 0; + struct sock *sk; + __poll_t mask; + struct vsock_sock *vsk; + + sk = sock->sk; + vsk = vsock_sk(sk); + + poll_wait(file, sk_sleep(sk), wait); + mask = 0; if (sk->sk_err) /* Signify that there has been an error on this socket. */ @@ -1084,7 +1091,7 @@ static const struct proto_ops vsock_dgram_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = vsock_getname, - .poll_mask = vsock_poll_mask, + .poll = vsock_poll, .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = vsock_shutdown, @@ -1842,7 +1849,7 @@ static const struct proto_ops vsock_stream_ops = { .socketpair = sock_no_socketpair, .accept = vsock_accept, .getname = vsock_getname, - .poll_mask = vsock_poll_mask, + .poll = vsock_poll, .ioctl = sock_no_ioctl, .listen = vsock_listen, .shutdown = vsock_shutdown, diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index f93365ae0fdd..d49aa79b7997 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -1750,7 +1750,7 @@ static const struct proto_ops x25_proto_ops = { .socketpair = sock_no_socketpair, .accept = x25_accept, .getname = x25_getname, - .poll_mask = datagram_poll_mask, + .poll = datagram_poll, .ioctl = x25_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = compat_x25_ioctl, diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c index 3b3410ada097..59fb7d3c36a3 100644 --- a/net/xdp/xsk.c +++ b/net/xdp/xsk.c @@ -303,9 +303,10 @@ static int xsk_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len) return (xs->zc) ? xsk_zc_xmit(sk) : xsk_generic_xmit(sk, m, total_len); } -static __poll_t xsk_poll_mask(struct socket *sock, __poll_t events) +static unsigned int xsk_poll(struct file *file, struct socket *sock, + struct poll_table_struct *wait) { - __poll_t mask = datagram_poll_mask(sock, events); + unsigned int mask = datagram_poll(file, sock, wait); struct sock *sk = sock->sk; struct xdp_sock *xs = xdp_sk(sk); @@ -696,7 +697,7 @@ static const struct proto_ops xsk_proto_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = sock_no_getname, - .poll_mask = xsk_poll_mask, + .poll = xsk_poll, .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh index 3755af0cd9f7..75e4e22b986a 100755 --- a/scripts/gcc-x86_64-has-stack-protector.sh +++ b/scripts/gcc-x86_64-has-stack-protector.sh @@ -1,4 +1,4 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 -echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -O0 -mcmodel=kernel -fno-PIE -fstack-protector - -o - 2> /dev/null | grep -q "%gs" +echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -m64 -O0 -mcmodel=kernel -fno-PIE -fstack-protector - -o - 2> /dev/null | grep -q "%gs" diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h index 94a383b21df6..f63b41b0dd49 100644 --- a/scripts/kconfig/expr.h +++ b/scripts/kconfig/expr.h @@ -171,6 +171,9 @@ struct symbol { * config BAZ * int "BAZ Value" * range 1..255 + * + * Please, also check zconf.y:print_symbol() when modifying the + * list of property types! */ enum prop_type { P_UNKNOWN, diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c index 65da87fce907..5ca2df790d3c 100644 --- a/scripts/kconfig/preprocess.c +++ b/scripts/kconfig/preprocess.c @@ -156,7 +156,7 @@ static char *do_shell(int argc, char *argv[]) nread--; /* remove trailing new lines */ - while (buf[nread - 1] == '\n') + while (nread > 0 && buf[nread - 1] == '\n') nread--; buf[nread] = 0; diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y index 6f9b0aa32a82..4b68272ebdb9 100644 --- a/scripts/kconfig/zconf.y +++ b/scripts/kconfig/zconf.y @@ -31,7 +31,7 @@ struct symbol *symbol_hash[SYMBOL_HASHSIZE]; static struct menu *current_menu, *current_entry; %} -%expect 32 +%expect 31 %union { @@ -337,7 +337,7 @@ choice_block: /* if entry */ -if_entry: T_IF expr nl +if_entry: T_IF expr T_EOL { printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno()); menu_add_entry(NULL); @@ -717,6 +717,10 @@ static void print_symbol(FILE *out, struct menu *menu) print_quoted_string(out, prop->text); fputc('\n', out); break; + case P_SYMBOL: + fputs( " symbol ", out); + fprintf(out, "%s\n", prop->sym->name); + break; default: fprintf(out, " unknown prop %d!\n", prop->type); break; diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index f3d374d2ca04..79d3709b0671 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -441,22 +441,16 @@ static int sel_release_policy(struct inode *inode, struct file *filp) static ssize_t sel_read_policy(struct file *filp, char __user *buf, size_t count, loff_t *ppos) { - struct selinux_fs_info *fsi = file_inode(filp)->i_sb->s_fs_info; struct policy_load_memory *plm = filp->private_data; int ret; - mutex_lock(&fsi->mutex); - ret = avc_has_perm(&selinux_state, current_sid(), SECINITSID_SECURITY, SECCLASS_SECURITY, SECURITY__READ_POLICY, NULL); if (ret) - goto out; + return ret; - ret = simple_read_from_buffer(buf, count, ppos, plm->data, plm->len); -out: - mutex_unlock(&fsi->mutex); - return ret; + return simple_read_from_buffer(buf, count, ppos, plm->data, plm->len); } static vm_fault_t sel_mmap_policy_fault(struct vm_fault *vmf) @@ -1188,25 +1182,29 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf, ret = -EINVAL; if (index >= fsi->bool_num || strcmp(name, fsi->bool_pending_names[index])) - goto out; + goto out_unlock; ret = -ENOMEM; page = (char *)get_zeroed_page(GFP_KERNEL); if (!page) - goto out; + goto out_unlock; cur_enforcing = security_get_bool_value(fsi->state, index); if (cur_enforcing < 0) { ret = cur_enforcing; - goto out; + goto out_unlock; } length = scnprintf(page, PAGE_SIZE, "%d %d", cur_enforcing, fsi->bool_pending_values[index]); - ret = simple_read_from_buffer(buf, count, ppos, page, length); -out: mutex_unlock(&fsi->mutex); + ret = simple_read_from_buffer(buf, count, ppos, page, length); +out_free: free_page((unsigned long)page); return ret; + +out_unlock: + mutex_unlock(&fsi->mutex); + goto out_free; } static ssize_t sel_write_bool(struct file *filep, const char __user *buf, @@ -1219,6 +1217,17 @@ static ssize_t sel_write_bool(struct file *filep, const char __user *buf, unsigned index = file_inode(filep)->i_ino & SEL_INO_MASK; const char *name = filep->f_path.dentry->d_name.name; + if (count >= PAGE_SIZE) + return -ENOMEM; + + /* No partial writes. */ + if (*ppos != 0) + return -EINVAL; + + page = memdup_user_nul(buf, count); + if (IS_ERR(page)) + return PTR_ERR(page); + mutex_lock(&fsi->mutex); length = avc_has_perm(&selinux_state, @@ -1233,22 +1242,6 @@ static ssize_t sel_write_bool(struct file *filep, const char __user *buf, fsi->bool_pending_names[index])) goto out; - length = -ENOMEM; - if (count >= PAGE_SIZE) - goto out; - - /* No partial writes. */ - length = -EINVAL; - if (*ppos != 0) - goto out; - - page = memdup_user_nul(buf, count); - if (IS_ERR(page)) { - length = PTR_ERR(page); - page = NULL; - goto out; - } - length = -EINVAL; if (sscanf(page, "%d", &new_value) != 1) goto out; @@ -1280,6 +1273,17 @@ static ssize_t sel_commit_bools_write(struct file *filep, ssize_t length; int new_value; + if (count >= PAGE_SIZE) + return -ENOMEM; + + /* No partial writes. */ + if (*ppos != 0) + return -EINVAL; + + page = memdup_user_nul(buf, count); + if (IS_ERR(page)) + return PTR_ERR(page); + mutex_lock(&fsi->mutex); length = avc_has_perm(&selinux_state, @@ -1289,22 +1293,6 @@ static ssize_t sel_commit_bools_write(struct file *filep, if (length) goto out; - length = -ENOMEM; - if (count >= PAGE_SIZE) - goto out; - - /* No partial writes. */ - length = -EINVAL; - if (*ppos != 0) - goto out; - - page = memdup_user_nul(buf, count); - if (IS_ERR(page)) { - length = PTR_ERR(page); - page = NULL; - goto out; - } - length = -EINVAL; if (sscanf(page, "%d", &new_value) != 1) goto out; diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index 61a07fe34cd2..56ca78423040 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -2004,7 +2004,8 @@ static int snd_seq_ioctl_query_next_client(struct snd_seq_client *client, struct snd_seq_client *cptr = NULL; /* search for next client */ - info->client++; + if (info->client < INT_MAX) + info->client++; if (info->client < 0) info->client = 0; for (; info->client < SNDRV_SEQ_MAX_CLIENTS; info->client++) { diff --git a/sound/core/timer.c b/sound/core/timer.c index 665089c45560..b6f076bbc72d 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1520,7 +1520,7 @@ static int snd_timer_user_next_device(struct snd_timer_id __user *_tid) } else { if (id.subdevice < 0) id.subdevice = 0; - else + else if (id.subdevice < INT_MAX) id.subdevice++; } } diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index d91c87e41756..20a171ac4bb2 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2899,8 +2899,9 @@ static int hda_codec_runtime_suspend(struct device *dev) list_for_each_entry(pcm, &codec->pcm_list_head, list) snd_pcm_suspend_all(pcm->pcm); state = hda_call_codec_suspend(codec); - if (codec_has_clkstop(codec) && codec_has_epss(codec) && - (state & AC_PWRST_CLK_STOP_OK)) + if (codec->link_down_at_suspend || + (codec_has_clkstop(codec) && codec_has_epss(codec) && + (state & AC_PWRST_CLK_STOP_OK))) snd_hdac_codec_link_down(&codec->core); snd_hdac_link_power(&codec->core, false); return 0; diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 681c360f29f9..a8b1b31f161c 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -258,6 +258,7 @@ struct hda_codec { unsigned int power_save_node:1; /* advanced PM for each widget */ unsigned int auto_runtime_pm:1; /* enable automatic codec runtime pm */ unsigned int force_pin_prefix:1; /* Add location prefix */ + unsigned int link_down_at_suspend:1; /* link down at runtime suspend */ #ifdef CONFIG_PM unsigned long power_on_acct; unsigned long power_off_acct; diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c index 04e949aa01ad..4ff5320378e2 100644 --- a/sound/pci/hda/patch_ca0132.c +++ b/sound/pci/hda/patch_ca0132.c @@ -991,6 +991,7 @@ struct ca0132_spec { enum { QUIRK_NONE, QUIRK_ALIENWARE, + QUIRK_ALIENWARE_M17XR4, QUIRK_SBZ, QUIRK_R3DI, }; @@ -1040,6 +1041,7 @@ static const struct hda_pintbl r3di_pincfgs[] = { }; static const struct snd_pci_quirk ca0132_quirks[] = { + SND_PCI_QUIRK(0x1028, 0x057b, "Alienware M17x R4", QUIRK_ALIENWARE_M17XR4), SND_PCI_QUIRK(0x1028, 0x0685, "Alienware 15 2015", QUIRK_ALIENWARE), SND_PCI_QUIRK(0x1028, 0x0688, "Alienware 17 2015", QUIRK_ALIENWARE), SND_PCI_QUIRK(0x1028, 0x0708, "Alienware 15 R2 2016", QUIRK_ALIENWARE), @@ -5663,7 +5665,7 @@ static const char * const ca0132_alt_slave_pfxs[] = { * I think this has to do with the pin for rear surround being 0x11, * and the center/lfe being 0x10. Usually the pin order is the opposite. */ -const struct snd_pcm_chmap_elem ca0132_alt_chmaps[] = { +static const struct snd_pcm_chmap_elem ca0132_alt_chmaps[] = { { .channels = 2, .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, { .channels = 4, @@ -5966,7 +5968,7 @@ static int ca0132_build_pcms(struct hda_codec *codec) info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->adcs[0]; /* With the DSP enabled, desktops don't use this ADC. */ - if (spec->use_alt_functions) { + if (!spec->use_alt_functions) { info = snd_hda_codec_pcm_new(codec, "CA0132 Analog Mic-In2"); if (!info) return -ENOMEM; @@ -6130,7 +6132,10 @@ static void ca0132_init_dmic(struct hda_codec *codec) * Bit 6: set to select Data2, clear for Data1 * Bit 7: set to enable DMic, clear for AMic */ - val = 0x23; + if (spec->quirk == QUIRK_ALIENWARE_M17XR4) + val = 0x33; + else + val = 0x23; /* keep a copy of dmic ctl val for enable/disable dmic purpuse */ spec->dmic_ctl = val; snd_hda_codec_write(codec, spec->input_pins[0], 0, @@ -7223,7 +7228,7 @@ static int ca0132_init(struct hda_codec *codec) snd_hda_sequence_write(codec, spec->base_init_verbs); - if (spec->quirk != QUIRK_NONE) + if (spec->use_alt_functions) ca0132_alt_init(codec); ca0132_download_dsp(codec); @@ -7237,8 +7242,9 @@ static int ca0132_init(struct hda_codec *codec) case QUIRK_R3DI: r3di_setup_defaults(codec); break; - case QUIRK_NONE: - case QUIRK_ALIENWARE: + case QUIRK_SBZ: + break; + default: ca0132_setup_defaults(codec); ca0132_init_analog_mic2(codec); ca0132_init_dmic(codec); @@ -7343,7 +7349,6 @@ static const struct hda_codec_ops ca0132_patch_ops = { static void ca0132_config(struct hda_codec *codec) { struct ca0132_spec *spec = codec->spec; - struct auto_pin_cfg *cfg = &spec->autocfg; spec->dacs[0] = 0x2; spec->dacs[1] = 0x3; @@ -7405,12 +7410,7 @@ static void ca0132_config(struct hda_codec *codec) /* SPDIF I/O */ spec->dig_out = 0x05; spec->multiout.dig_out_nid = spec->dig_out; - cfg->dig_out_pins[0] = 0x0c; - cfg->dig_outs = 1; - cfg->dig_out_type[0] = HDA_PCM_TYPE_SPDIF; spec->dig_in = 0x09; - cfg->dig_in_pin = 0x0e; - cfg->dig_in_type = HDA_PCM_TYPE_SPDIF; break; case QUIRK_R3DI: codec_dbg(codec, "%s: QUIRK_R3DI applied.\n", __func__); @@ -7438,9 +7438,6 @@ static void ca0132_config(struct hda_codec *codec) /* SPDIF I/O */ spec->dig_out = 0x05; spec->multiout.dig_out_nid = spec->dig_out; - cfg->dig_out_pins[0] = 0x0c; - cfg->dig_outs = 1; - cfg->dig_out_type[0] = HDA_PCM_TYPE_SPDIF; break; default: spec->num_outputs = 2; @@ -7463,12 +7460,7 @@ static void ca0132_config(struct hda_codec *codec) /* SPDIF I/O */ spec->dig_out = 0x05; spec->multiout.dig_out_nid = spec->dig_out; - cfg->dig_out_pins[0] = 0x0c; - cfg->dig_outs = 1; - cfg->dig_out_type[0] = HDA_PCM_TYPE_SPDIF; spec->dig_in = 0x09; - cfg->dig_in_pin = 0x0e; - cfg->dig_in_type = HDA_PCM_TYPE_SPDIF; break; } } @@ -7476,7 +7468,7 @@ static void ca0132_config(struct hda_codec *codec) static int ca0132_prepare_verbs(struct hda_codec *codec) { /* Verbs + terminator (an empty element) */ -#define NUM_SPEC_VERBS 4 +#define NUM_SPEC_VERBS 2 struct ca0132_spec *spec = codec->spec; spec->chip_init_verbs = ca0132_init_verbs0; @@ -7488,34 +7480,24 @@ static int ca0132_prepare_verbs(struct hda_codec *codec) if (!spec->spec_init_verbs) return -ENOMEM; - /* HP jack autodetection */ - spec->spec_init_verbs[0].nid = spec->unsol_tag_hp; - spec->spec_init_verbs[0].param = AC_VERB_SET_UNSOLICITED_ENABLE; - spec->spec_init_verbs[0].verb = AC_USRSP_EN | spec->unsol_tag_hp; - - /* MIC1 jack autodetection */ - spec->spec_init_verbs[1].nid = spec->unsol_tag_amic1; - spec->spec_init_verbs[1].param = AC_VERB_SET_UNSOLICITED_ENABLE; - spec->spec_init_verbs[1].verb = AC_USRSP_EN | spec->unsol_tag_amic1; - /* config EAPD */ - spec->spec_init_verbs[2].nid = 0x0b; - spec->spec_init_verbs[2].param = 0x78D; - spec->spec_init_verbs[2].verb = 0x00; + spec->spec_init_verbs[0].nid = 0x0b; + spec->spec_init_verbs[0].param = 0x78D; + spec->spec_init_verbs[0].verb = 0x00; /* Previously commented configuration */ /* - spec->spec_init_verbs[3].nid = 0x0b; - spec->spec_init_verbs[3].param = AC_VERB_SET_EAPD_BTLENABLE; + spec->spec_init_verbs[2].nid = 0x0b; + spec->spec_init_verbs[2].param = AC_VERB_SET_EAPD_BTLENABLE; + spec->spec_init_verbs[2].verb = 0x02; + + spec->spec_init_verbs[3].nid = 0x10; + spec->spec_init_verbs[3].param = 0x78D; spec->spec_init_verbs[3].verb = 0x02; spec->spec_init_verbs[4].nid = 0x10; - spec->spec_init_verbs[4].param = 0x78D; + spec->spec_init_verbs[4].param = AC_VERB_SET_EAPD_BTLENABLE; spec->spec_init_verbs[4].verb = 0x02; - - spec->spec_init_verbs[5].nid = 0x10; - spec->spec_init_verbs[5].param = AC_VERB_SET_EAPD_BTLENABLE; - spec->spec_init_verbs[5].verb = 0x02; */ /* Terminator: spec->spec_init_verbs[NUM_SPEC_VERBS-1] */ diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 8840daf9c6a3..98e1c411c56a 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -3741,6 +3741,11 @@ static int patch_atihdmi(struct hda_codec *codec) spec->chmap.channels_max = max(spec->chmap.channels_max, 8u); + /* AMD GPUs have neither EPSS nor CLKSTOP bits, hence preventing + * the link-down as is. Tell the core to allow it. + */ + codec->link_down_at_suspend = 1; + return 0; } diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index e9bd33ea538f..5ad6c7e5f92e 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -2545,6 +2545,7 @@ static const struct snd_pci_quirk alc262_fixup_tbl[] = { SND_PCI_QUIRK(0x10cf, 0x1397, "Fujitsu Lifebook S7110", ALC262_FIXUP_FSC_S7110), SND_PCI_QUIRK(0x10cf, 0x142d, "Fujitsu Lifebook E8410", ALC262_FIXUP_BENQ), SND_PCI_QUIRK(0x10f1, 0x2915, "Tyan Thunder n6650W", ALC262_FIXUP_TYAN), + SND_PCI_QUIRK(0x1734, 0x1141, "FSC ESPRIMO U9210", ALC262_FIXUP_FSC_H270), SND_PCI_QUIRK(0x1734, 0x1147, "FSC Celsius H270", ALC262_FIXUP_FSC_H270), SND_PCI_QUIRK(0x17aa, 0x384e, "Lenovo 3000", ALC262_FIXUP_LENOVO_3000), SND_PCI_QUIRK(0x17ff, 0x0560, "Benq ED8", ALC262_FIXUP_BENQ), @@ -4995,7 +4996,6 @@ static void alc_fixup_tpt440_dock(struct hda_codec *codec, struct alc_spec *spec = codec->spec; if (action == HDA_FIXUP_ACT_PRE_PROBE) { - spec->shutup = alc_no_shutup; /* reduce click noise */ spec->reboot_notify = alc_d3_at_reboot; /* reduce noise */ spec->parse_flags = HDA_PINCFG_NO_HP_FIXUP; codec->power_save_node = 0; /* avoid click noises */ @@ -5394,6 +5394,13 @@ static void alc274_fixup_bind_dacs(struct hda_codec *codec, /* for hda_fixup_thinkpad_acpi() */ #include "thinkpad_helper.c" +static void alc_fixup_thinkpad_acpi(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ + alc_fixup_no_shutup(codec, fix, action); /* reduce click noise */ + hda_fixup_thinkpad_acpi(codec, fix, action); +} + /* for dell wmi mic mute led */ #include "dell_wmi_helper.c" @@ -5946,7 +5953,7 @@ static const struct hda_fixup alc269_fixups[] = { }, [ALC269_FIXUP_THINKPAD_ACPI] = { .type = HDA_FIXUP_FUNC, - .v.func = hda_fixup_thinkpad_acpi, + .v.func = alc_fixup_thinkpad_acpi, .chained = true, .chain_id = ALC269_FIXUP_SKU_IGNORE, }, @@ -6603,8 +6610,9 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), SND_PCI_QUIRK(0x17aa, 0x310c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION), + SND_PCI_QUIRK(0x17aa, 0x312a, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION), SND_PCI_QUIRK(0x17aa, 0x312f, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION), - SND_PCI_QUIRK(0x17aa, 0x3138, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION), + SND_PCI_QUIRK(0x17aa, 0x3136, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION), SND_PCI_QUIRK(0x17aa, 0x313c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION), SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI), SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC), @@ -6782,6 +6790,12 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = { {0x14, 0x90170110}, {0x19, 0x02a11030}, {0x21, 0x02211020}), + SND_HDA_PIN_QUIRK(0x10ec0235, 0x17aa, "Lenovo", ALC294_FIXUP_LENOVO_MIC_LOCATION, + {0x14, 0x90170110}, + {0x19, 0x02a11030}, + {0x1a, 0x02a11040}, + {0x1b, 0x01014020}, + {0x21, 0x0221101f}), SND_HDA_PIN_QUIRK(0x10ec0236, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, {0x12, 0x90a60140}, {0x14, 0x90170110}, diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c index 6c85f13ab23f..54f6252faca6 100644 --- a/sound/pci/lx6464es/lx6464es.c +++ b/sound/pci/lx6464es/lx6464es.c @@ -1018,6 +1018,7 @@ static int snd_lx6464es_create(struct snd_card *card, chip->port_dsp_bar = pci_ioremap_bar(pci, 2); if (!chip->port_dsp_bar) { dev_err(card->dev, "cannot remap PCI memory region\n"); + err = -ENOMEM; goto remap_pci_failed; } diff --git a/tools/arch/arm/include/uapi/asm/kvm.h b/tools/arch/arm/include/uapi/asm/kvm.h index caae4843cb70..16e006f708ca 100644 --- a/tools/arch/arm/include/uapi/asm/kvm.h +++ b/tools/arch/arm/include/uapi/asm/kvm.h @@ -91,6 +91,7 @@ struct kvm_regs { #define KVM_VGIC_V3_ADDR_TYPE_DIST 2 #define KVM_VGIC_V3_ADDR_TYPE_REDIST 3 #define KVM_VGIC_ITS_ADDR_TYPE 4 +#define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION 5 #define KVM_VGIC_V3_DIST_SIZE SZ_64K #define KVM_VGIC_V3_REDIST_SIZE (2 * SZ_64K) diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h index 04b3256f8e6d..4e76630dd655 100644 --- a/tools/arch/arm64/include/uapi/asm/kvm.h +++ b/tools/arch/arm64/include/uapi/asm/kvm.h @@ -91,6 +91,7 @@ struct kvm_regs { #define KVM_VGIC_V3_ADDR_TYPE_DIST 2 #define KVM_VGIC_V3_ADDR_TYPE_REDIST 3 #define KVM_VGIC_ITS_ADDR_TYPE 4 +#define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION 5 #define KVM_VGIC_V3_DIST_SIZE SZ_64K #define KVM_VGIC_V3_REDIST_SIZE (2 * SZ_64K) diff --git a/tools/arch/powerpc/include/uapi/asm/kvm.h b/tools/arch/powerpc/include/uapi/asm/kvm.h index 833ed9a16adf..1b32b56a03d3 100644 --- a/tools/arch/powerpc/include/uapi/asm/kvm.h +++ b/tools/arch/powerpc/include/uapi/asm/kvm.h @@ -633,6 +633,7 @@ struct kvm_ppc_cpu_char { #define KVM_REG_PPC_PSSCR (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xbd) #define KVM_REG_PPC_DEC_EXPIRY (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xbe) +#define KVM_REG_PPC_ONLINE (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xbf) /* Transactional Memory checkpointed state: * This is all GPRs, all VSX regs and a subset of SPRs diff --git a/tools/arch/powerpc/include/uapi/asm/unistd.h b/tools/arch/powerpc/include/uapi/asm/unistd.h index 389c36fd8299..ac5ba55066dd 100644 --- a/tools/arch/powerpc/include/uapi/asm/unistd.h +++ b/tools/arch/powerpc/include/uapi/asm/unistd.h @@ -398,5 +398,6 @@ #define __NR_pkey_alloc 384 #define __NR_pkey_free 385 #define __NR_pkey_mprotect 386 +#define __NR_rseq 387 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */ diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h index fb00a2fca990..5701f5cecd31 100644 --- a/tools/arch/x86/include/asm/cpufeatures.h +++ b/tools/arch/x86/include/asm/cpufeatures.h @@ -282,7 +282,9 @@ #define X86_FEATURE_AMD_IBPB (13*32+12) /* "" Indirect Branch Prediction Barrier */ #define X86_FEATURE_AMD_IBRS (13*32+14) /* "" Indirect Branch Restricted Speculation */ #define X86_FEATURE_AMD_STIBP (13*32+15) /* "" Single Thread Indirect Branch Predictors */ +#define X86_FEATURE_AMD_SSBD (13*32+24) /* "" Speculative Store Bypass Disable */ #define X86_FEATURE_VIRT_SSBD (13*32+25) /* Virtualized Speculative Store Bypass Disable */ +#define X86_FEATURE_AMD_SSB_NO (13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */ /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */ #define X86_FEATURE_DTHERM (14*32+ 0) /* Digital Thermal Sensor */ diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h index 6fdff5945c8a..9c660e1688ab 100644 --- a/tools/include/uapi/drm/drm.h +++ b/tools/include/uapi/drm/drm.h @@ -680,6 +680,13 @@ struct drm_get_cap { */ #define DRM_CLIENT_CAP_ATOMIC 3 +/** + * DRM_CLIENT_CAP_ASPECT_RATIO + * + * If set to 1, the DRM core will provide aspect ratio information in modes. + */ +#define DRM_CLIENT_CAP_ASPECT_RATIO 4 + /** DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */ struct drm_set_client_cap { __u64 capability; diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index e0b06784f227..59b19b6a40d7 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -2630,7 +2630,7 @@ struct bpf_fib_lookup { union { /* inputs to lookup */ __u8 tos; /* AF_INET */ - __be32 flowlabel; /* AF_INET6 */ + __be32 flowinfo; /* AF_INET6, flow_label + priority */ /* output: metric of fib result (IPv4/IPv6 only) */ __u32 rt_metric; diff --git a/tools/include/uapi/linux/if_link.h b/tools/include/uapi/linux/if_link.h index 68699f654118..cf01b6824244 100644 --- a/tools/include/uapi/linux/if_link.h +++ b/tools/include/uapi/linux/if_link.h @@ -333,6 +333,7 @@ enum { IFLA_BRPORT_BCAST_FLOOD, IFLA_BRPORT_GROUP_FWD_MASK, IFLA_BRPORT_NEIGH_SUPPRESS, + IFLA_BRPORT_ISOLATED, __IFLA_BRPORT_MAX }; #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1) @@ -516,6 +517,7 @@ enum { IFLA_VXLAN_COLLECT_METADATA, IFLA_VXLAN_LABEL, IFLA_VXLAN_GPE, + IFLA_VXLAN_TTL_INHERIT, __IFLA_VXLAN_MAX }; #define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1) diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h index 39e364c70caf..b6270a3b38e9 100644 --- a/tools/include/uapi/linux/kvm.h +++ b/tools/include/uapi/linux/kvm.h @@ -948,6 +948,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_S390_BPB 152 #define KVM_CAP_GET_MSR_FEATURES 153 #define KVM_CAP_HYPERV_EVENTFD 154 +#define KVM_CAP_HYPERV_TLBFLUSH 155 #ifdef KVM_CAP_IRQ_ROUTING diff --git a/tools/perf/arch/powerpc/util/skip-callchain-idx.c b/tools/perf/arch/powerpc/util/skip-callchain-idx.c index 3598b8b75d27..ef5d59a5742e 100644 --- a/tools/perf/arch/powerpc/util/skip-callchain-idx.c +++ b/tools/perf/arch/powerpc/util/skip-callchain-idx.c @@ -243,7 +243,7 @@ int arch_skip_callchain_idx(struct thread *thread, struct ip_callchain *chain) u64 ip; u64 skip_slot = -1; - if (chain->nr < 3) + if (!chain || chain->nr < 3) return skip_slot; ip = chain->ips[2]; diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl index 4dfe42666d0c..f0b1709a5ffb 100644 --- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl +++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl @@ -341,6 +341,8 @@ 330 common pkey_alloc __x64_sys_pkey_alloc 331 common pkey_free __x64_sys_pkey_free 332 common statx __x64_sys_statx +333 common io_pgetevents __x64_sys_io_pgetevents +334 common rseq __x64_sys_rseq # # x32-specific system call numbers start at 512 to avoid cache impact diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c index 63eb49082774..44195514b19e 100644 --- a/tools/perf/bench/numa.c +++ b/tools/perf/bench/numa.c @@ -1098,7 +1098,7 @@ static void *worker_thread(void *__tdata) u8 *global_data; u8 *process_data; u8 *thread_data; - u64 bytes_done; + u64 bytes_done, secs; long work_done; u32 l; struct rusage rusage; @@ -1254,7 +1254,8 @@ static void *worker_thread(void *__tdata) timersub(&stop, &start0, &diff); td->runtime_ns = diff.tv_sec * NSEC_PER_SEC; td->runtime_ns += diff.tv_usec * NSEC_PER_USEC; - td->speed_gbs = bytes_done / (td->runtime_ns / NSEC_PER_SEC) / 1e9; + secs = td->runtime_ns / NSEC_PER_SEC; + td->speed_gbs = secs ? bytes_done / secs / 1e9 : 0; getrusage(RUSAGE_THREAD, &rusage); td->system_time_ns = rusage.ru_stime.tv_sec * NSEC_PER_SEC; diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 5eb22cc56363..8180319285af 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -283,6 +283,15 @@ out_put: return ret; } +static int process_feature_event(struct perf_tool *tool, + union perf_event *event, + struct perf_session *session) +{ + if (event->feat.feat_id < HEADER_LAST_FEATURE) + return perf_event__process_feature(tool, event, session); + return 0; +} + static int hist_entry__tty_annotate(struct hist_entry *he, struct perf_evsel *evsel, struct perf_annotate *ann) @@ -471,7 +480,7 @@ int cmd_annotate(int argc, const char **argv) .attr = perf_event__process_attr, .build_id = perf_event__process_build_id, .tracing_data = perf_event__process_tracing_data, - .feature = perf_event__process_feature, + .feature = process_feature_event, .ordered_events = true, .ordering_requires_timestamps = true, }, diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index cdb5b6949832..c04dc7b53797 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -217,7 +217,8 @@ static int process_feature_event(struct perf_tool *tool, } /* - * All features are received, we can force the + * (feat_id = HEADER_LAST_FEATURE) is the end marker which + * means all features are received, now we can force the * group if needed. */ setup_forced_leader(rep, session->evlist); diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index a31d7082188e..568ddfac3213 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -1834,6 +1834,7 @@ static int process_attr(struct perf_tool *tool, union perf_event *event, struct perf_evlist *evlist; struct perf_evsel *evsel, *pos; int err; + static struct perf_evsel_script *es; err = perf_event__process_attr(tool, event, pevlist); if (err) @@ -1842,6 +1843,19 @@ static int process_attr(struct perf_tool *tool, union perf_event *event, evlist = *pevlist; evsel = perf_evlist__last(*pevlist); + if (!evsel->priv) { + if (scr->per_event_dump) { + evsel->priv = perf_evsel_script__new(evsel, + scr->session->data); + } else { + es = zalloc(sizeof(*es)); + if (!es) + return -ENOMEM; + es->fp = stdout; + evsel->priv = es; + } + } + if (evsel->attr.type >= PERF_TYPE_MAX && evsel->attr.type != PERF_TYPE_SYNTH) return 0; @@ -3030,6 +3044,15 @@ int process_cpu_map_event(struct perf_tool *tool __maybe_unused, return set_maps(script); } +static int process_feature_event(struct perf_tool *tool, + union perf_event *event, + struct perf_session *session) +{ + if (event->feat.feat_id < HEADER_LAST_FEATURE) + return perf_event__process_feature(tool, event, session); + return 0; +} + #ifdef HAVE_AUXTRACE_SUPPORT static int perf_script__process_auxtrace_info(struct perf_tool *tool, union perf_event *event, @@ -3074,7 +3097,7 @@ int cmd_script(int argc, const char **argv) .attr = process_attr, .event_update = perf_event__process_event_update, .tracing_data = perf_event__process_tracing_data, - .feature = perf_event__process_feature, + .feature = process_feature_event, .build_id = perf_event__process_build_id, .id_index = perf_event__process_id_index, .auxtrace_info = perf_script__process_auxtrace_info, @@ -3125,8 +3148,9 @@ int cmd_script(int argc, const char **argv) "+field to add and -field to remove." "Valid types: hw,sw,trace,raw,synth. " "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," - "addr,symoff,period,iregs,uregs,brstack,brstacksym,flags," - "bpf-output,callindent,insn,insnlen,brstackinsn,synth,phys_addr", + "addr,symoff,srcline,period,iregs,uregs,brstack," + "brstacksym,flags,bpf-output,brstackinsn,brstackoff," + "callindent,insn,insnlen,synth,phys_addr,metric,misc", parse_output_fields), OPT_BOOLEAN('a', "all-cpus", &system_wide, "system-wide collection from all CPUs"), diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index 7d4077068454..61211918bfba 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -1309,6 +1309,11 @@ static int test__checkevent_config_cache(struct perf_evlist *evlist) return 0; } +static bool test__intel_pt_valid(void) +{ + return !!perf_pmu__find("intel_pt"); +} + static int test__intel_pt(struct perf_evlist *evlist) { struct perf_evsel *evsel = perf_evlist__first(evlist); @@ -1375,6 +1380,7 @@ struct evlist_test { const char *name; __u32 type; const int id; + bool (*valid)(void); int (*check)(struct perf_evlist *evlist); }; @@ -1648,6 +1654,7 @@ static struct evlist_test test__events[] = { }, { .name = "intel_pt//u", + .valid = test__intel_pt_valid, .check = test__intel_pt, .id = 52, }, @@ -1686,17 +1693,24 @@ static struct terms_test test__terms[] = { static int test_event(struct evlist_test *e) { + struct parse_events_error err = { .idx = 0, }; struct perf_evlist *evlist; int ret; + if (e->valid && !e->valid()) { + pr_debug("... SKIP"); + return 0; + } + evlist = perf_evlist__new(); if (evlist == NULL) return -ENOMEM; - ret = parse_events(evlist, e->name, NULL); + ret = parse_events(evlist, e->name, &err); if (ret) { - pr_debug("failed to parse event '%s', err %d\n", - e->name, ret); + pr_debug("failed to parse event '%s', err %d, str '%s'\n", + e->name, ret, err.str); + parse_events_print_error(&err, e->name); } else { ret = e->check(evlist); } @@ -1714,10 +1728,11 @@ static int test_events(struct evlist_test *events, unsigned cnt) for (i = 0; i < cnt; i++) { struct evlist_test *e = &events[i]; - pr_debug("running test %d '%s'\n", e->id, e->name); + pr_debug("running test %d '%s'", e->id, e->name); ret1 = test_event(e); if (ret1) ret2 = ret1; + pr_debug("\n"); } return ret2; @@ -1799,7 +1814,7 @@ static int test_pmu_events(void) } while (!ret && (ent = readdir(dir))) { - struct evlist_test e; + struct evlist_test e = { .id = 0, }; char name[2 * NAME_MAX + 1 + 12 + 3]; /* Names containing . are special and cannot be used directly */ diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c index 40e30a26b23c..9497d02f69e6 100644 --- a/tools/perf/tests/topology.c +++ b/tools/perf/tests/topology.c @@ -45,6 +45,7 @@ static int session_write_header(char *path) perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY); perf_header__set_feat(&session->header, HEADER_NRCPUS); + perf_header__set_feat(&session->header, HEADER_ARCH); session->header.data_size += DATA_SIZE; diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp index bf31ceab33bd..89512504551b 100644 --- a/tools/perf/util/c++/clang.cpp +++ b/tools/perf/util/c++/clang.cpp @@ -146,8 +146,15 @@ getBPFObjectFromModule(llvm::Module *Module) raw_svector_ostream ostream(*Buffer); legacy::PassManager PM; - if (TargetMachine->addPassesToEmitFile(PM, ostream, - TargetMachine::CGFT_ObjectFile)) { + bool NotAdded; +#if CLANG_VERSION_MAJOR < 7 + NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream, + TargetMachine::CGFT_ObjectFile); +#else + NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream, nullptr, + TargetMachine::CGFT_ObjectFile); +#endif + if (NotAdded) { llvm::errs() << "TargetMachine can't emit a file of this type\n"; return std::unique_ptr<llvm::SmallVectorImpl<char>>(nullptr);; } diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 540cd2dcd3e7..653ff65aa2c3 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2129,6 +2129,7 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused) int cpu_nr = ff->ph->env.nr_cpus_avail; u64 size = 0; struct perf_header *ph = ff->ph; + bool do_core_id_test = true; ph->env.cpu = calloc(cpu_nr, sizeof(*ph->env.cpu)); if (!ph->env.cpu) @@ -2183,6 +2184,13 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused) return 0; } + /* On s390 the socket_id number is not related to the numbers of cpus. + * The socket_id number might be higher than the numbers of cpus. + * This depends on the configuration. + */ + if (ph->env.arch && !strncmp(ph->env.arch, "s390", 4)) + do_core_id_test = false; + for (i = 0; i < (u32)cpu_nr; i++) { if (do_read_u32(ff, &nr)) goto free_cpu; @@ -2192,7 +2200,7 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused) if (do_read_u32(ff, &nr)) goto free_cpu; - if (nr != (u32)-1 && nr > (u32)cpu_nr) { + if (do_core_id_test && nr != (u32)-1 && nr > (u32)cpu_nr) { pr_debug("socket_id number is too big." "You may need to upgrade the perf tool.\n"); goto free_cpu; @@ -3456,7 +3464,7 @@ int perf_event__process_feature(struct perf_tool *tool, pr_warning("invalid record type %d in pipe-mode\n", type); return 0; } - if (feat == HEADER_RESERVED || feat > HEADER_LAST_FEATURE) { + if (feat == HEADER_RESERVED || feat >= HEADER_LAST_FEATURE) { pr_warning("invalid record type %d in pipe-mode\n", type); return -1; } diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c index ba4c9dd18643..d426761a549d 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c @@ -366,7 +366,7 @@ static int intel_pt_get_cyc(unsigned int byte, const unsigned char *buf, if (len < offs) return INTEL_PT_NEED_MORE_BYTES; byte = buf[offs++]; - payload |= (byte >> 1) << shift; + payload |= ((uint64_t)byte >> 1) << shift; } packet->type = INTEL_PT_CYC; diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index d2fb597c9a8c..3ba6a1742f91 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -234,6 +234,74 @@ static int perf_pmu__parse_snapshot(struct perf_pmu_alias *alias, return 0; } +static void perf_pmu_assign_str(char *name, const char *field, char **old_str, + char **new_str) +{ + if (!*old_str) + goto set_new; + + if (*new_str) { /* Have new string, check with old */ + if (strcasecmp(*old_str, *new_str)) + pr_debug("alias %s differs in field '%s'\n", + name, field); + zfree(old_str); + } else /* Nothing new --> keep old string */ + return; +set_new: + *old_str = *new_str; + *new_str = NULL; +} + +static void perf_pmu_update_alias(struct perf_pmu_alias *old, + struct perf_pmu_alias *newalias) +{ + perf_pmu_assign_str(old->name, "desc", &old->desc, &newalias->desc); + perf_pmu_assign_str(old->name, "long_desc", &old->long_desc, + &newalias->long_desc); + perf_pmu_assign_str(old->name, "topic", &old->topic, &newalias->topic); + perf_pmu_assign_str(old->name, "metric_expr", &old->metric_expr, + &newalias->metric_expr); + perf_pmu_assign_str(old->name, "metric_name", &old->metric_name, + &newalias->metric_name); + perf_pmu_assign_str(old->name, "value", &old->str, &newalias->str); + old->scale = newalias->scale; + old->per_pkg = newalias->per_pkg; + old->snapshot = newalias->snapshot; + memcpy(old->unit, newalias->unit, sizeof(old->unit)); +} + +/* Delete an alias entry. */ +static void perf_pmu_free_alias(struct perf_pmu_alias *newalias) +{ + zfree(&newalias->name); + zfree(&newalias->desc); + zfree(&newalias->long_desc); + zfree(&newalias->topic); + zfree(&newalias->str); + zfree(&newalias->metric_expr); + zfree(&newalias->metric_name); + parse_events_terms__purge(&newalias->terms); + free(newalias); +} + +/* Merge an alias, search in alias list. If this name is already + * present merge both of them to combine all information. + */ +static bool perf_pmu_merge_alias(struct perf_pmu_alias *newalias, + struct list_head *alist) +{ + struct perf_pmu_alias *a; + + list_for_each_entry(a, alist, list) { + if (!strcasecmp(newalias->name, a->name)) { + perf_pmu_update_alias(a, newalias); + perf_pmu_free_alias(newalias); + return true; + } + } + return false; +} + static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name, char *desc, char *val, char *long_desc, char *topic, @@ -241,9 +309,11 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name, char *metric_expr, char *metric_name) { + struct parse_events_term *term; struct perf_pmu_alias *alias; int ret; int num; + char newval[256]; alias = malloc(sizeof(*alias)); if (!alias) @@ -262,6 +332,27 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name, return ret; } + /* Scan event and remove leading zeroes, spaces, newlines, some + * platforms have terms specified as + * event=0x0091 (read from files ../<PMU>/events/<FILE> + * and terms specified as event=0x91 (read from JSON files). + * + * Rebuild string to make alias->str member comparable. + */ + memset(newval, 0, sizeof(newval)); + ret = 0; + list_for_each_entry(term, &alias->terms, list) { + if (ret) + ret += scnprintf(newval + ret, sizeof(newval) - ret, + ","); + if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) + ret += scnprintf(newval + ret, sizeof(newval) - ret, + "%s=%#x", term->config, term->val.num); + else if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) + ret += scnprintf(newval + ret, sizeof(newval) - ret, + "%s=%s", term->config, term->val.str); + } + alias->name = strdup(name); if (dir) { /* @@ -285,9 +376,10 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name, snprintf(alias->unit, sizeof(alias->unit), "%s", unit); } alias->per_pkg = perpkg && sscanf(perpkg, "%d", &num) == 1 && num == 1; - alias->str = strdup(val); + alias->str = strdup(newval); - list_add_tail(&alias->list, list); + if (!perf_pmu_merge_alias(alias, list)) + list_add_tail(&alias->list, list); return 0; } @@ -303,6 +395,9 @@ static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FI buf[ret] = 0; + /* Remove trailing newline from sysfs file */ + rtrim(buf); + return __perf_pmu__new_alias(list, dir, name, NULL, buf, NULL, NULL, NULL, NULL, NULL, NULL); } diff --git a/tools/testing/selftests/x86/sigreturn.c b/tools/testing/selftests/x86/sigreturn.c index 246145b84a12..4d9dc3f2fd70 100644 --- a/tools/testing/selftests/x86/sigreturn.c +++ b/tools/testing/selftests/x86/sigreturn.c @@ -610,21 +610,41 @@ static int test_valid_sigreturn(int cs_bits, bool use_16bit_ss, int force_ss) */ for (int i = 0; i < NGREG; i++) { greg_t req = requested_regs[i], res = resulting_regs[i]; + if (i == REG_TRAPNO || i == REG_IP) continue; /* don't care */ - if (i == REG_SP) { - printf("\tSP: %llx -> %llx\n", (unsigned long long)req, - (unsigned long long)res); + if (i == REG_SP) { /* - * In many circumstances, the high 32 bits of rsp - * are zeroed. For example, we could be a real - * 32-bit program, or we could hit any of a number - * of poorly-documented IRET or segmented ESP - * oddities. If this happens, it's okay. + * If we were using a 16-bit stack segment, then + * the kernel is a bit stuck: IRET only restores + * the low 16 bits of ESP/RSP if SS is 16-bit. + * The kernel uses a hack to restore bits 31:16, + * but that hack doesn't help with bits 63:32. + * On Intel CPUs, bits 63:32 end up zeroed, and, on + * AMD CPUs, they leak the high bits of the kernel + * espfix64 stack pointer. There's very little that + * the kernel can do about it. + * + * Similarly, if we are returning to a 32-bit context, + * the CPU will often lose the high 32 bits of RSP. */ - if (res == (req & 0xFFFFFFFF)) - continue; /* OK; not expected to work */ + + if (res == req) + continue; + + if (cs_bits != 64 && ((res ^ req) & 0xFFFFFFFF) == 0) { + printf("[NOTE]\tSP: %llx -> %llx\n", + (unsigned long long)req, + (unsigned long long)res); + continue; + } + + printf("[FAIL]\tSP mismatch: requested 0x%llx; got 0x%llx\n", + (unsigned long long)requested_regs[i], + (unsigned long long)resulting_regs[i]); + nerrs++; + continue; } bool ignore_reg = false; @@ -654,25 +674,18 @@ static int test_valid_sigreturn(int cs_bits, bool use_16bit_ss, int force_ss) #endif /* Sanity check on the kernel */ - if (i == REG_CX && requested_regs[i] != resulting_regs[i]) { + if (i == REG_CX && req != res) { printf("[FAIL]\tCX (saved SP) mismatch: requested 0x%llx; got 0x%llx\n", - (unsigned long long)requested_regs[i], - (unsigned long long)resulting_regs[i]); + (unsigned long long)req, + (unsigned long long)res); nerrs++; continue; } - if (requested_regs[i] != resulting_regs[i] && !ignore_reg) { - /* - * SP is particularly interesting here. The - * usual cause of failures is that we hit the - * nasty IRET case of returning to a 16-bit SS, - * in which case bits 16:31 of the *kernel* - * stack pointer persist in ESP. - */ + if (req != res && !ignore_reg) { printf("[FAIL]\tReg %d mismatch: requested 0x%llx; got 0x%llx\n", - i, (unsigned long long)requested_regs[i], - (unsigned long long)resulting_regs[i]); + i, (unsigned long long)req, + (unsigned long long)res); nerrs++; } } diff --git a/tools/virtio/linux/scatterlist.h b/tools/virtio/linux/scatterlist.h index 9a45f90e2d08..369ee308b668 100644 --- a/tools/virtio/linux/scatterlist.h +++ b/tools/virtio/linux/scatterlist.h @@ -36,7 +36,6 @@ static inline void sg_assign_page(struct scatterlist *sg, struct page *page) */ BUG_ON((unsigned long) page & 0x03); #ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); BUG_ON(sg_is_chain(sg)); #endif sg->page_link = page_link | (unsigned long) page; @@ -67,7 +66,6 @@ static inline void sg_set_page(struct scatterlist *sg, struct page *page, static inline struct page *sg_page(struct scatterlist *sg) { #ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); BUG_ON(sg_is_chain(sg)); #endif return (struct page *)((sg)->page_link & ~0x3); @@ -116,9 +114,6 @@ static inline void sg_chain(struct scatterlist *prv, unsigned int prv_nents, **/ static inline void sg_mark_end(struct scatterlist *sg) { -#ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); -#endif /* * Set termination bit, clear potential chain bit */ @@ -136,17 +131,11 @@ static inline void sg_mark_end(struct scatterlist *sg) **/ static inline void sg_unmark_end(struct scatterlist *sg) { -#ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); -#endif sg->page_link &= ~0x02; } static inline struct scatterlist *sg_next(struct scatterlist *sg) { -#ifdef CONFIG_DEBUG_SG - BUG_ON(sg->sg_magic != SG_MAGIC); -#endif if (sg_is_last(sg)) return NULL; @@ -160,13 +149,6 @@ static inline struct scatterlist *sg_next(struct scatterlist *sg) static inline void sg_init_table(struct scatterlist *sgl, unsigned int nents) { memset(sgl, 0, sizeof(*sgl) * nents); -#ifdef CONFIG_DEBUG_SG - { - unsigned int i; - for (i = 0; i < nents; i++) - sgl[i].sg_magic = SG_MAGIC; - } -#endif sg_mark_end(&sgl[nents - 1]); } |