diff options
469 files changed, 4134 insertions, 1503 deletions
diff --git a/Documentation/arm/kernel_mode_neon.txt b/Documentation/arm/kernel_mode_neon.txt index 525452726d31..b9e060c5b61e 100644 --- a/Documentation/arm/kernel_mode_neon.txt +++ b/Documentation/arm/kernel_mode_neon.txt @@ -6,7 +6,7 @@ TL;DR summary * Use only NEON instructions, or VFP instructions that don't rely on support code * Isolate your NEON code in a separate compilation unit, and compile it with - '-mfpu=neon -mfloat-abi=softfp' + '-march=armv7-a -mfpu=neon -mfloat-abi=softfp' * Put kernel_neon_begin() and kernel_neon_end() calls around the calls into your NEON code * Don't sleep in your NEON code, and be aware that it will be executed with @@ -87,7 +87,7 @@ instructions appearing in unexpected places if no special care is taken. Therefore, the recommended and only supported way of using NEON/VFP in the kernel is by adhering to the following rules: * isolate the NEON code in a separate compilation unit and compile it with - '-mfpu=neon -mfloat-abi=softfp'; + '-march=armv7-a -mfpu=neon -mfloat-abi=softfp'; * issue the calls to kernel_neon_begin(), kernel_neon_end() as well as the calls into the unit containing the NEON code from a compilation unit which is *not* built with the GCC flag '-mfpu=neon' set. diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 3ff58a8ffabb..d1908e50b506 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -13,7 +13,7 @@ of a virtual machine. The ioctls belong to three classes - VM ioctls: These query and set attributes that affect an entire virtual machine, for example memory layout. In addition a VM ioctl is used to - create virtual cpus (vcpus). + create virtual cpus (vcpus) and devices. Only run VM ioctls from the same process (address space) that was used to create the VM. @@ -24,6 +24,11 @@ of a virtual machine. The ioctls belong to three classes Only run vcpu ioctls from the same thread that was used to create the vcpu. + - device ioctls: These query and set attributes that control the operation + of a single device. + + device ioctls must be issued from the same process (address space) that + was used to create the VM. 2. File descriptors ------------------- @@ -32,10 +37,11 @@ The kvm API is centered around file descriptors. An initial open("/dev/kvm") obtains a handle to the kvm subsystem; this handle can be used to issue system ioctls. A KVM_CREATE_VM ioctl on this handle will create a VM file descriptor which can be used to issue VM -ioctls. A KVM_CREATE_VCPU ioctl on a VM fd will create a virtual cpu -and return a file descriptor pointing to it. Finally, ioctls on a vcpu -fd can be used to control the vcpu, including the important task of -actually running guest code. +ioctls. A KVM_CREATE_VCPU or KVM_CREATE_DEVICE ioctl on a VM fd will +create a virtual cpu or device and return a file descriptor pointing to +the new resource. Finally, ioctls on a vcpu or device fd can be used +to control the vcpu or device. For vcpus, this includes the important +task of actually running guest code. In general file descriptors can be migrated among processes by means of fork() and the SCM_RIGHTS facility of unix domain socket. These @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 9 -SUBLEVEL = 163 +SUBLEVEL = 170 EXTRAVERSION = NAME = Roaring Lionus @@ -507,7 +507,7 @@ endif ifeq ($(cc-name),clang) ifneq ($(CROSS_COMPILE),) CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE:%-=%)) -GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) +GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit)) CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR) GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) endif diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h index 0684fd2f42e8..f82393f89215 100644 --- a/arch/arc/include/asm/uaccess.h +++ b/arch/arc/include/asm/uaccess.h @@ -209,7 +209,7 @@ __arc_copy_from_user(void *to, const void __user *from, unsigned long n) */ "=&r" (tmp), "+r" (to), "+r" (from) : - : "lp_count", "lp_start", "lp_end", "memory"); + : "lp_count", "memory"); return n; } @@ -438,7 +438,7 @@ __arc_copy_to_user(void __user *to, const void *from, unsigned long n) */ "=&r" (tmp), "+r" (to), "+r" (from) : - : "lp_count", "lp_start", "lp_end", "memory"); + : "lp_count", "memory"); return n; } @@ -658,7 +658,7 @@ static inline unsigned long __arc_clear_user(void __user *to, unsigned long n) " .previous \n" : "+r"(d_char), "+r"(res) : "i"(0) - : "lp_count", "lp_start", "lp_end", "memory"); + : "lp_count", "memory"); return res; } @@ -691,7 +691,7 @@ __arc_strncpy_from_user(char *dst, const char __user *src, long count) " .previous \n" : "+r"(res), "+r"(dst), "+r"(src), "=r"(val) : "g"(-EFAULT), "r"(count) - : "lp_count", "lp_start", "lp_end", "memory"); + : "lp_count", "memory"); return res; } diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S index 1f945d0f40da..208bf2c9e7b0 100644 --- a/arch/arc/kernel/head.S +++ b/arch/arc/kernel/head.S @@ -107,6 +107,7 @@ ENTRY(stext) ; r2 = pointer to uboot provided cmdline or external DTB in mem ; These are handled later in handle_uboot_args() st r0, [@uboot_tag] + st r1, [@uboot_magic] st r2, [@uboot_arg] #endif diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 9119bea503a7..9f96120eee6e 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -32,6 +32,7 @@ unsigned int intr_to_DE_cnt; /* Part of U-boot ABI: see head.S */ int __initdata uboot_tag; +int __initdata uboot_magic; char __initdata *uboot_arg; const struct machine_desc *machine_desc; @@ -400,6 +401,8 @@ static inline bool uboot_arg_invalid(unsigned long addr) #define UBOOT_TAG_NONE 0 #define UBOOT_TAG_CMDLINE 1 #define UBOOT_TAG_DTB 2 +/* We always pass 0 as magic from U-boot */ +#define UBOOT_MAGIC_VALUE 0 void __init handle_uboot_args(void) { @@ -415,6 +418,11 @@ void __init handle_uboot_args(void) goto ignore_uboot_args; } + if (uboot_magic != UBOOT_MAGIC_VALUE) { + pr_warn(IGNORE_ARGS "non zero uboot magic\n"); + goto ignore_uboot_args; + } + if (uboot_tag != UBOOT_TAG_NONE && uboot_arg_invalid((unsigned long)uboot_arg)) { pr_warn(IGNORE_ARGS "invalid uboot arg: '%px'\n", uboot_arg); diff --git a/arch/arc/lib/memcpy-archs.S b/arch/arc/lib/memcpy-archs.S index d61044dd8b58..ea14b0bf3116 100644 --- a/arch/arc/lib/memcpy-archs.S +++ b/arch/arc/lib/memcpy-archs.S @@ -25,15 +25,11 @@ #endif #ifdef CONFIG_ARC_HAS_LL64 -# define PREFETCH_READ(RX) prefetch [RX, 56] -# define PREFETCH_WRITE(RX) prefetchw [RX, 64] # define LOADX(DST,RX) ldd.ab DST, [RX, 8] # define STOREX(SRC,RX) std.ab SRC, [RX, 8] # define ZOLSHFT 5 # define ZOLAND 0x1F #else -# define PREFETCH_READ(RX) prefetch [RX, 28] -# define PREFETCH_WRITE(RX) prefetchw [RX, 32] # define LOADX(DST,RX) ld.ab DST, [RX, 4] # define STOREX(SRC,RX) st.ab SRC, [RX, 4] # define ZOLSHFT 4 @@ -41,8 +37,6 @@ #endif ENTRY_CFI(memcpy) - prefetch [r1] ; Prefetch the read location - prefetchw [r0] ; Prefetch the write location mov.f 0, r2 ;;; if size is zero jz.d [blink] @@ -72,8 +66,6 @@ ENTRY_CFI(memcpy) lpnz @.Lcopy32_64bytes ;; LOOP START LOADX (r6, r1) - PREFETCH_READ (r1) - PREFETCH_WRITE (r3) LOADX (r8, r1) LOADX (r10, r1) LOADX (r4, r1) @@ -117,9 +109,7 @@ ENTRY_CFI(memcpy) lpnz @.Lcopy8bytes_1 ;; LOOP START ld.ab r6, [r1, 4] - prefetch [r1, 28] ;Prefetch the next read location ld.ab r8, [r1,4] - prefetchw [r3, 32] ;Prefetch the next write location SHIFT_1 (r7, r6, 24) or r7, r7, r5 @@ -162,9 +152,7 @@ ENTRY_CFI(memcpy) lpnz @.Lcopy8bytes_2 ;; LOOP START ld.ab r6, [r1, 4] - prefetch [r1, 28] ;Prefetch the next read location ld.ab r8, [r1,4] - prefetchw [r3, 32] ;Prefetch the next write location SHIFT_1 (r7, r6, 16) or r7, r7, r5 @@ -204,9 +192,7 @@ ENTRY_CFI(memcpy) lpnz @.Lcopy8bytes_3 ;; LOOP START ld.ab r6, [r1, 4] - prefetch [r1, 28] ;Prefetch the next read location ld.ab r8, [r1,4] - prefetchw [r3, 32] ;Prefetch the next write location SHIFT_1 (r7, r6, 8) or r7, r7, r5 diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 8c40f7d73251..9998d8c29bf7 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1458,6 +1458,7 @@ config NR_CPUS config HOTPLUG_CPU bool "Support for hot-pluggable CPUs" depends on SMP + select GENERIC_IRQ_MIGRATION help Say Y here to experiment with turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu. diff --git a/arch/arm/boot/dts/lpc32xx.dtsi b/arch/arm/boot/dts/lpc32xx.dtsi index b5841fab51c1..0d20aadc78bb 100644 --- a/arch/arm/boot/dts/lpc32xx.dtsi +++ b/arch/arm/boot/dts/lpc32xx.dtsi @@ -230,7 +230,7 @@ status = "disabled"; }; - i2s1: i2s@2009C000 { + i2s1: i2s@2009c000 { compatible = "nxp,lpc3220-i2s"; reg = <0x2009C000 0x1000>; }; @@ -273,7 +273,7 @@ status = "disabled"; }; - i2c1: i2c@400A0000 { + i2c1: i2c@400a0000 { compatible = "nxp,pnx-i2c"; reg = <0x400A0000 0x100>; interrupt-parent = <&sic1>; @@ -284,7 +284,7 @@ clocks = <&clk LPC32XX_CLK_I2C1>; }; - i2c2: i2c@400A8000 { + i2c2: i2c@400a8000 { compatible = "nxp,pnx-i2c"; reg = <0x400A8000 0x100>; interrupt-parent = <&sic1>; @@ -295,7 +295,7 @@ clocks = <&clk LPC32XX_CLK_I2C2>; }; - mpwm: mpwm@400E8000 { + mpwm: mpwm@400e8000 { compatible = "nxp,lpc3220-motor-pwm"; reg = <0x400E8000 0x78>; status = "disabled"; @@ -394,7 +394,7 @@ #gpio-cells = <3>; /* bank, pin, flags */ }; - timer4: timer@4002C000 { + timer4: timer@4002c000 { compatible = "nxp,lpc3220-timer"; reg = <0x4002C000 0x1000>; interrupts = <3 IRQ_TYPE_LEVEL_LOW>; @@ -412,7 +412,7 @@ status = "disabled"; }; - watchdog: watchdog@4003C000 { + watchdog: watchdog@4003c000 { compatible = "nxp,pnx4008-wdt"; reg = <0x4003C000 0x1000>; clocks = <&clk LPC32XX_CLK_WDOG>; @@ -451,7 +451,7 @@ status = "disabled"; }; - timer1: timer@4004C000 { + timer1: timer@4004c000 { compatible = "nxp,lpc3220-timer"; reg = <0x4004C000 0x1000>; interrupts = <17 IRQ_TYPE_LEVEL_LOW>; @@ -475,14 +475,14 @@ status = "disabled"; }; - pwm1: pwm@4005C000 { + pwm1: pwm@4005c000 { compatible = "nxp,lpc3220-pwm"; reg = <0x4005C000 0x4>; clocks = <&clk LPC32XX_CLK_PWM1>; status = "disabled"; }; - pwm2: pwm@4005C004 { + pwm2: pwm@4005c004 { compatible = "nxp,lpc3220-pwm"; reg = <0x4005C004 0x4>; clocks = <&clk LPC32XX_CLK_PWM2>; diff --git a/arch/arm/boot/dts/sama5d2-pinfunc.h b/arch/arm/boot/dts/sama5d2-pinfunc.h index 8a394f336003..ee65702f9645 100644 --- a/arch/arm/boot/dts/sama5d2-pinfunc.h +++ b/arch/arm/boot/dts/sama5d2-pinfunc.h @@ -517,7 +517,7 @@ #define PIN_PC9__GPIO PINMUX_PIN(PIN_PC9, 0, 0) #define PIN_PC9__FIQ PINMUX_PIN(PIN_PC9, 1, 3) #define PIN_PC9__GTSUCOMP PINMUX_PIN(PIN_PC9, 2, 1) -#define PIN_PC9__ISC_D0 PINMUX_PIN(PIN_PC9, 2, 1) +#define PIN_PC9__ISC_D0 PINMUX_PIN(PIN_PC9, 3, 1) #define PIN_PC9__TIOA4 PINMUX_PIN(PIN_PC9, 4, 2) #define PIN_PC10 74 #define PIN_PC10__GPIO PINMUX_PIN(PIN_PC10, 0, 0) diff --git a/arch/arm/crypto/sha256-armv4.pl b/arch/arm/crypto/sha256-armv4.pl index fac0533ea633..f64e8413ab9a 100644 --- a/arch/arm/crypto/sha256-armv4.pl +++ b/arch/arm/crypto/sha256-armv4.pl @@ -205,10 +205,11 @@ K256: .global sha256_block_data_order .type sha256_block_data_order,%function sha256_block_data_order: +.Lsha256_block_data_order: #if __ARM_ARCH__<7 sub r3,pc,#8 @ sha256_block_data_order #else - adr r3,sha256_block_data_order + adr r3,.Lsha256_block_data_order #endif #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) ldr r12,.LOPENSSL_armcap diff --git a/arch/arm/crypto/sha256-core.S_shipped b/arch/arm/crypto/sha256-core.S_shipped index 555a1a8eec90..72c248081d27 100644 --- a/arch/arm/crypto/sha256-core.S_shipped +++ b/arch/arm/crypto/sha256-core.S_shipped @@ -86,10 +86,11 @@ K256: .global sha256_block_data_order .type sha256_block_data_order,%function sha256_block_data_order: +.Lsha256_block_data_order: #if __ARM_ARCH__<7 sub r3,pc,#8 @ sha256_block_data_order #else - adr r3,sha256_block_data_order + adr r3,.Lsha256_block_data_order #endif #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) ldr r12,.LOPENSSL_armcap diff --git a/arch/arm/crypto/sha512-armv4.pl b/arch/arm/crypto/sha512-armv4.pl index a2b11a844357..5fe336420bcf 100644 --- a/arch/arm/crypto/sha512-armv4.pl +++ b/arch/arm/crypto/sha512-armv4.pl @@ -267,10 +267,11 @@ WORD64(0x5fcb6fab,0x3ad6faec, 0x6c44198c,0x4a475817) .global sha512_block_data_order .type sha512_block_data_order,%function sha512_block_data_order: +.Lsha512_block_data_order: #if __ARM_ARCH__<7 sub r3,pc,#8 @ sha512_block_data_order #else - adr r3,sha512_block_data_order + adr r3,.Lsha512_block_data_order #endif #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) ldr r12,.LOPENSSL_armcap diff --git a/arch/arm/crypto/sha512-core.S_shipped b/arch/arm/crypto/sha512-core.S_shipped index 3694c4d4ca2b..de9bd7f55242 100644 --- a/arch/arm/crypto/sha512-core.S_shipped +++ b/arch/arm/crypto/sha512-core.S_shipped @@ -134,10 +134,11 @@ WORD64(0x5fcb6fab,0x3ad6faec, 0x6c44198c,0x4a475817) .global sha512_block_data_order .type sha512_block_data_order,%function sha512_block_data_order: +.Lsha512_block_data_order: #if __ARM_ARCH__<7 sub r3,pc,#8 @ sha512_block_data_order #else - adr r3,sha512_block_data_order + adr r3,.Lsha512_block_data_order #endif #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) ldr r12,.LOPENSSL_armcap diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h index 513e03d138ea..8331cb0d3461 100644 --- a/arch/arm/include/asm/barrier.h +++ b/arch/arm/include/asm/barrier.h @@ -10,6 +10,8 @@ #define sev() __asm__ __volatile__ ("sev" : : : "memory") #define wfe() __asm__ __volatile__ ("wfe" : : : "memory") #define wfi() __asm__ __volatile__ ("wfi" : : : "memory") +#else +#define wfe() do { } while (0) #endif #if __LINUX_ARM_ARCH__ >= 7 diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h index 6095a1649865..0893b01e5669 100644 --- a/arch/arm/include/asm/irq.h +++ b/arch/arm/include/asm/irq.h @@ -26,7 +26,6 @@ struct irqaction; struct pt_regs; -extern void migrate_irqs(void); extern void asm_do_IRQ(unsigned int, struct pt_regs *); void handle_IRQ(unsigned int, struct pt_regs *); diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h index 8a1e8e995dae..08509183c7df 100644 --- a/arch/arm/include/asm/processor.h +++ b/arch/arm/include/asm/processor.h @@ -77,7 +77,11 @@ extern void release_thread(struct task_struct *); unsigned long get_wchan(struct task_struct *p); #if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327) -#define cpu_relax() smp_mb() +#define cpu_relax() \ + do { \ + smp_mb(); \ + __asm__ __volatile__("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"); \ + } while (0) #else #define cpu_relax() barrier() #endif diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index ece04a457486..5b07c7a31c31 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -31,7 +31,6 @@ #include <linux/smp.h> #include <linux/init.h> #include <linux/seq_file.h> -#include <linux/ratelimit.h> #include <linux/errno.h> #include <linux/list.h> #include <linux/kallsyms.h> @@ -119,64 +118,3 @@ int __init arch_probe_nr_irqs(void) return nr_irqs; } #endif - -#ifdef CONFIG_HOTPLUG_CPU -static bool migrate_one_irq(struct irq_desc *desc) -{ - struct irq_data *d = irq_desc_get_irq_data(desc); - const struct cpumask *affinity = irq_data_get_affinity_mask(d); - struct irq_chip *c; - bool ret = false; - - /* - * If this is a per-CPU interrupt, or the affinity does not - * include this CPU, then we have nothing to do. - */ - if (irqd_is_per_cpu(d) || !cpumask_test_cpu(smp_processor_id(), affinity)) - return false; - - if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) { - affinity = cpu_online_mask; - ret = true; - } - - c = irq_data_get_irq_chip(d); - if (!c->irq_set_affinity) - pr_debug("IRQ%u: unable to set affinity\n", d->irq); - else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret) - cpumask_copy(irq_data_get_affinity_mask(d), affinity); - - return ret; -} - -/* - * The current CPU has been marked offline. Migrate IRQs off this CPU. - * If the affinity settings do not allow other CPUs, force them onto any - * available CPU. - * - * Note: we must iterate over all IRQs, whether they have an attached - * action structure or not, as we need to get chained interrupts too. - */ -void migrate_irqs(void) -{ - unsigned int i; - struct irq_desc *desc; - unsigned long flags; - - local_irq_save(flags); - - for_each_irq_desc(i, desc) { - bool affinity_broken; - - raw_spin_lock(&desc->lock); - affinity_broken = migrate_one_irq(desc); - raw_spin_unlock(&desc->lock); - - if (affinity_broken) - pr_warn_ratelimited("IRQ%u no longer affine to CPU%u\n", - i, smp_processor_id()); - } - - local_irq_restore(flags); -} -#endif /* CONFIG_HOTPLUG_CPU */ diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index b18c1ea56bed..ef6b27fe1d2e 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -87,8 +87,11 @@ void machine_crash_nonpanic_core(void *unused) set_cpu_online(smp_processor_id(), false); atomic_dec(&waiting_for_crash_ipi); - while (1) + + while (1) { cpu_relax(); + wfe(); + } } static void machine_kexec_mask_interrupts(void) diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index da3da15daaad..b32a8fa4f208 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -253,7 +253,7 @@ int __cpu_disable(void) /* * OK - migrate IRQs away from this CPU */ - migrate_irqs(); + irq_migrate_all_off_this_cpu(); /* * Flush user cache and TLB mappings, and then remove this CPU @@ -603,8 +603,10 @@ static void ipi_cpu_stop(unsigned int cpu) local_fiq_disable(); local_irq_disable(); - while (1) + while (1) { cpu_relax(); + wfe(); + } } static DEFINE_PER_CPU(struct completion *, cpu_completion); diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index 27f4d96258a2..b3ecffb76c3f 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -38,7 +38,7 @@ $(obj)/csumpartialcopy.o: $(obj)/csumpartialcopygeneric.S $(obj)/csumpartialcopyuser.o: $(obj)/csumpartialcopygeneric.S ifeq ($(CONFIG_KERNEL_MODE_NEON),y) - NEON_FLAGS := -mfloat-abi=softfp -mfpu=neon + NEON_FLAGS := -march=armv7-a -mfloat-abi=softfp -mfpu=neon CFLAGS_xor-neon.o += $(NEON_FLAGS) obj-$(CONFIG_XOR_BLOCKS) += xor-neon.o endif diff --git a/arch/arm/lib/xor-neon.c b/arch/arm/lib/xor-neon.c index 2c40aeab3eaa..c691b901092f 100644 --- a/arch/arm/lib/xor-neon.c +++ b/arch/arm/lib/xor-neon.c @@ -14,7 +14,7 @@ MODULE_LICENSE("GPL"); #ifndef __ARM_NEON__ -#error You should compile this file with '-mfloat-abi=softfp -mfpu=neon' +#error You should compile this file with '-march=armv7-a -mfloat-abi=softfp -mfpu=neon' #endif /* diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c index bfeb25aaf9a2..326e870d7123 100644 --- a/arch/arm/mach-imx/cpuidle-imx6q.c +++ b/arch/arm/mach-imx/cpuidle-imx6q.c @@ -16,30 +16,23 @@ #include "cpuidle.h" #include "hardware.h" -static atomic_t master = ATOMIC_INIT(0); -static DEFINE_SPINLOCK(master_lock); +static int num_idle_cpus = 0; +static DEFINE_SPINLOCK(cpuidle_lock); static int imx6q_enter_wait(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { - if (atomic_inc_return(&master) == num_online_cpus()) { - /* - * With this lock, we prevent other cpu to exit and enter - * this function again and become the master. - */ - if (!spin_trylock(&master_lock)) - goto idle; + spin_lock(&cpuidle_lock); + if (++num_idle_cpus == num_online_cpus()) imx6_set_lpm(WAIT_UNCLOCKED); - cpu_do_idle(); - imx6_set_lpm(WAIT_CLOCKED); - spin_unlock(&master_lock); - goto done; - } + spin_unlock(&cpuidle_lock); -idle: cpu_do_idle(); -done: - atomic_dec(&master); + + spin_lock(&cpuidle_lock); + if (num_idle_cpus-- == num_online_cpus()) + imx6_set_lpm(WAIT_CLOCKED); + spin_unlock(&cpuidle_lock); return index; } diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 70b3eaf085e4..5ca7e29ad851 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -115,6 +115,7 @@ static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes) u32 enable_mask, enable_shift; u32 pipd_mask, pipd_shift; u32 reg; + int ret; if (dsi_id == 0) { enable_mask = OMAP4_DSI1_LANEENABLE_MASK; @@ -130,7 +131,11 @@ static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes) return -ENODEV; } - regmap_read(omap4_dsi_mux_syscon, OMAP4_DSIPHY_SYSCON_OFFSET, ®); + ret = regmap_read(omap4_dsi_mux_syscon, + OMAP4_DSIPHY_SYSCON_OFFSET, + ®); + if (ret) + return ret; reg &= ~enable_mask; reg &= ~pipd_mask; diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index f1ca9479491b..9e14604b9642 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -533,8 +533,10 @@ void omap_prm_reset_system(void) prm_ll_data->reset_system(); - while (1) + while (1) { cpu_relax(); + wfe(); + } } /** diff --git a/arch/arm/mach-s3c24xx/mach-osiris-dvs.c b/arch/arm/mach-s3c24xx/mach-osiris-dvs.c index 262ab0744748..f4fdfca9439b 100644 --- a/arch/arm/mach-s3c24xx/mach-osiris-dvs.c +++ b/arch/arm/mach-s3c24xx/mach-osiris-dvs.c @@ -70,16 +70,16 @@ static int osiris_dvs_notify(struct notifier_block *nb, switch (val) { case CPUFREQ_PRECHANGE: - if (old_dvs & !new_dvs || - cur_dvs & !new_dvs) { + if ((old_dvs && !new_dvs) || + (cur_dvs && !new_dvs)) { pr_debug("%s: exiting dvs\n", __func__); cur_dvs = false; gpio_set_value(OSIRIS_GPIO_DVS, 1); } break; case CPUFREQ_POSTCHANGE: - if (!old_dvs & new_dvs || - !cur_dvs & new_dvs) { + if ((!old_dvs && new_dvs) || + (!cur_dvs && new_dvs)) { pr_debug("entering dvs\n"); cur_dvs = true; gpio_set_value(OSIRIS_GPIO_DVS, 0); diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index e8229b9fee4a..3265b8f86069 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -258,7 +258,7 @@ config S3C_PM_DEBUG_LED_SMDK config SAMSUNG_PM_CHECK bool "S3C2410 PM Suspend Memory CRC" - depends on PM + depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210) select CRC32 help Enable the PM code's memory area checksum over sleep. This option diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 778184dfd2e0..233ff9b7648e 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1080,6 +1080,10 @@ config SYSVIPC_COMPAT def_bool y depends on COMPAT && SYSVIPC +config KEYS_COMPAT + def_bool y + depends on COMPAT && KEYS + endmenu menu "Power management options" diff --git a/arch/arm64/crypto/aes-ce-ccm-core.S b/arch/arm64/crypto/aes-ce-ccm-core.S index 3363560c79b7..7bc459d9235c 100644 --- a/arch/arm64/crypto/aes-ce-ccm-core.S +++ b/arch/arm64/crypto/aes-ce-ccm-core.S @@ -74,12 +74,13 @@ ENTRY(ce_aes_ccm_auth_data) beq 10f ext v0.16b, v0.16b, v0.16b, #1 /* rotate out the mac bytes */ b 7b -8: mov w7, w8 +8: cbz w8, 91f + mov w7, w8 add w8, w8, #16 9: ext v1.16b, v1.16b, v1.16b, #1 adds w7, w7, #1 bne 9b - eor v0.16b, v0.16b, v1.16b +91: eor v0.16b, v0.16b, v1.16b st1 {v0.16b}, [x0] 10: str w8, [x3] ret diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h index 2a5090fb9113..d7116f5935fb 100644 --- a/arch/arm64/include/asm/futex.h +++ b/arch/arm64/include/asm/futex.h @@ -33,8 +33,8 @@ " prfm pstl1strm, %2\n" \ "1: ldxr %w1, %2\n" \ insn "\n" \ -"2: stlxr %w3, %w0, %2\n" \ -" cbnz %w3, 1b\n" \ +"2: stlxr %w0, %w3, %2\n" \ +" cbnz %w0, 1b\n" \ " dmb ish\n" \ "3:\n" \ " .pushsection .fixup,\"ax\"\n" \ @@ -53,29 +53,29 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { - int oldval = 0, ret, tmp; + int oldval, ret, tmp; pagefault_disable(); switch (op) { case FUTEX_OP_SET: - __futex_atomic_op("mov %w0, %w4", + __futex_atomic_op("mov %w3, %w4", ret, oldval, uaddr, tmp, oparg); break; case FUTEX_OP_ADD: - __futex_atomic_op("add %w0, %w1, %w4", + __futex_atomic_op("add %w3, %w1, %w4", ret, oldval, uaddr, tmp, oparg); break; case FUTEX_OP_OR: - __futex_atomic_op("orr %w0, %w1, %w4", + __futex_atomic_op("orr %w3, %w1, %w4", ret, oldval, uaddr, tmp, oparg); break; case FUTEX_OP_ANDN: - __futex_atomic_op("and %w0, %w1, %w4", + __futex_atomic_op("and %w3, %w1, %w4", ret, oldval, uaddr, tmp, ~oparg); break; case FUTEX_OP_XOR: - __futex_atomic_op("eor %w0, %w1, %w4", + __futex_atomic_op("eor %w3, %w1, %w4", ret, oldval, uaddr, tmp, oparg); break; default: diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 3289d1458791..db6ff1944c41 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -534,8 +534,7 @@ set_hcr: /* GICv3 system register access */ mrs x0, id_aa64pfr0_el1 ubfx x0, x0, #24, #4 - cmp x0, #1 - b.ne 3f + cbz x0, 3f mrs_s x0, ICC_SRE_EL2 orr x0, x0, #ICC_SRE_EL2_SRE // Set ICC_SRE_EL2.SRE==1 diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgdb.c index e017a9493b92..72a660a74ff9 100644 --- a/arch/arm64/kernel/kgdb.c +++ b/arch/arm64/kernel/kgdb.c @@ -231,24 +231,33 @@ int kgdb_arch_handle_exception(int exception_vector, int signo, static int kgdb_brk_fn(struct pt_regs *regs, unsigned int esr) { + if (user_mode(regs)) + return DBG_HOOK_ERROR; + kgdb_handle_exception(1, SIGTRAP, 0, regs); - return 0; + return DBG_HOOK_HANDLED; } NOKPROBE_SYMBOL(kgdb_brk_fn) static int kgdb_compiled_brk_fn(struct pt_regs *regs, unsigned int esr) { + if (user_mode(regs)) + return DBG_HOOK_ERROR; + compiled_break = 1; kgdb_handle_exception(1, SIGTRAP, 0, regs); - return 0; + return DBG_HOOK_HANDLED; } NOKPROBE_SYMBOL(kgdb_compiled_brk_fn); static int kgdb_step_brk_fn(struct pt_regs *regs, unsigned int esr) { + if (user_mode(regs)) + return DBG_HOOK_ERROR; + kgdb_handle_exception(1, SIGTRAP, 0, regs); - return 0; + return DBG_HOOK_HANDLED; } NOKPROBE_SYMBOL(kgdb_step_brk_fn); diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c index d2b1b624ddc3..17f647103ed7 100644 --- a/arch/arm64/kernel/probes/kprobes.c +++ b/arch/arm64/kernel/probes/kprobes.c @@ -450,6 +450,9 @@ kprobe_single_step_handler(struct pt_regs *regs, unsigned int esr) struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); int retval; + if (user_mode(regs)) + return DBG_HOOK_ERROR; + /* return error if this is not our step */ retval = kprobe_ss_hit(kcb, instruction_pointer(regs)); @@ -466,6 +469,9 @@ kprobe_single_step_handler(struct pt_regs *regs, unsigned int esr) int __kprobes kprobe_breakpoint_handler(struct pt_regs *regs, unsigned int esr) { + if (user_mode(regs)) + return DBG_HOOK_ERROR; + kprobe_handler(regs); return DBG_HOOK_HANDLED; } diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 5963be2e05f0..28bef94cf792 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -266,10 +266,12 @@ void die(const char *str, struct pt_regs *regs, int err) { struct thread_info *thread = current_thread_info(); int ret; + unsigned long flags; + + raw_spin_lock_irqsave(&die_lock, flags); oops_enter(); - raw_spin_lock_irq(&die_lock); console_verbose(); bust_spinlocks(1); ret = __die(str, err, thread, regs); @@ -279,13 +281,15 @@ void die(const char *str, struct pt_regs *regs, int err) bust_spinlocks(0); add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); - raw_spin_unlock_irq(&die_lock); oops_exit(); if (in_interrupt()) panic("Fatal exception in interrupt"); if (panic_on_oops) panic("Fatal exception"); + + raw_spin_unlock_irqrestore(&die_lock, flags); + if (ret != NOTIFY_STOP) do_exit(SIGSEGV); } diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index ad49ae8f3967..051b32084776 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -673,11 +673,12 @@ void __init hook_debug_fault_code(int nr, debug_fault_info[nr].name = name; } -asmlinkage int __exception do_debug_exception(unsigned long addr, +asmlinkage int __exception do_debug_exception(unsigned long addr_if_watchpoint, unsigned int esr, struct pt_regs *regs) { const struct fault_info *inf = debug_fault_info + DBG_ESR_EVT(esr); + unsigned long pc = instruction_pointer(regs); struct siginfo info; int rv; @@ -688,19 +689,19 @@ asmlinkage int __exception do_debug_exception(unsigned long addr, if (interrupts_enabled(regs)) trace_hardirqs_off(); - if (user_mode(regs) && instruction_pointer(regs) > TASK_SIZE) + if (user_mode(regs) && pc > TASK_SIZE) arm64_apply_bp_hardening(); - if (!inf->fn(addr, esr, regs)) { + if (!inf->fn(addr_if_watchpoint, esr, regs)) { rv = 1; } else { pr_alert("Unhandled debug exception: %s (0x%08x) at 0x%016lx\n", - inf->name, esr, addr); + inf->name, esr, pc); info.si_signo = inf->sig; info.si_errno = 0; info.si_code = inf->code; - info.si_addr = (void __user *)addr; + info.si_addr = (void __user *)pc; arm64_notify_die("", regs, &info, 0); rv = 0; } diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index fa6b2fad7a3d..5d3df68272f5 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -272,7 +272,7 @@ void __init arm64_memblock_init(void) * memory spans, randomize the linear region as well. */ if (memstart_offset_seed > 0 && range >= ARM64_MEMSTART_ALIGN) { - range = range / ARM64_MEMSTART_ALIGN + 1; + range /= ARM64_MEMSTART_ALIGN; memstart_addr -= ARM64_MEMSTART_ALIGN * ((range * memstart_offset_seed) >> 16); } diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile index e1c02ca230cb..073bba6f9f60 100644 --- a/arch/h8300/Makefile +++ b/arch/h8300/Makefile @@ -23,7 +23,7 @@ KBUILD_AFLAGS += $(aflags-y) LDFLAGS += $(ldflags-y) ifeq ($(CROSS_COMPILE),) -CROSS_COMPILE := h8300-unknown-linux- +CROSS_COMPILE := $(call cc-cross-prefix, h8300-unknown-linux- h8300-linux-) endif core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/ diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index f0dd9fc84002..a229d28e14cc 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -58,7 +58,10 @@ cpuflags-$(CONFIG_M5206e) := $(call cc-option,-mcpu=5206e,-m5200) cpuflags-$(CONFIG_M5206) := $(call cc-option,-mcpu=5206,-m5200) KBUILD_AFLAGS += $(cpuflags-y) -KBUILD_CFLAGS += $(cpuflags-y) -pipe +KBUILD_CFLAGS += $(cpuflags-y) + +KBUILD_CFLAGS += -pipe -ffreestanding + ifdef CONFIG_MMU # without -fno-strength-reduce the 53c7xx.c driver fails ;-( KBUILD_CFLAGS += -fno-strength-reduce -ffixed-a2 diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h index e77672539e8e..e4456e450f94 100644 --- a/arch/mips/include/asm/jump_label.h +++ b/arch/mips/include/asm/jump_label.h @@ -21,15 +21,15 @@ #endif #ifdef CONFIG_CPU_MICROMIPS -#define NOP_INSN "nop32" +#define B_INSN "b32" #else -#define NOP_INSN "nop" +#define B_INSN "b" #endif static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { - asm_volatile_goto("1:\t" NOP_INSN "\n\t" - "nop\n\t" + asm_volatile_goto("1:\t" B_INSN " 2f\n\t" + "2:\tnop\n\t" ".pushsection __jump_table, \"aw\"\n\t" WORD_INSN " 1b, %l[l_yes], %0\n\t" ".popsection\n\t" diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index f0a0e6d62be3..2d965d91fee4 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -138,6 +138,13 @@ SECTIONS PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT) #endif +#ifdef CONFIG_MIPS_ELF_APPENDED_DTB + .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) { + *(.appended_dtb) + KEEP(*(.appended_dtb)) + } +#endif + #ifdef CONFIG_RELOCATABLE . = ALIGN(4); @@ -162,11 +169,6 @@ SECTIONS __appended_dtb = .; /* leave space for appended DTB */ . += 0x100000; -#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB) - .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) { - *(.appended_dtb) - KEEP(*(.appended_dtb)) - } #endif /* * Align to 64K in attempt to eliminate holes before the diff --git a/arch/mips/loongson64/lemote-2f/irq.c b/arch/mips/loongson64/lemote-2f/irq.c index cab5f43e0e29..d371f0294cbb 100644 --- a/arch/mips/loongson64/lemote-2f/irq.c +++ b/arch/mips/loongson64/lemote-2f/irq.c @@ -102,7 +102,7 @@ static struct irqaction ip6_irqaction = { static struct irqaction cascade_irqaction = { .handler = no_action, .name = "cascade", - .flags = IRQF_NO_THREAD, + .flags = IRQF_NO_THREAD | IRQF_NO_SUSPEND, }; void __init mach_init_irq(void) diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h index 2e674e13e005..656984ec1958 100644 --- a/arch/parisc/include/asm/processor.h +++ b/arch/parisc/include/asm/processor.h @@ -323,6 +323,8 @@ extern int _parisc_requires_coherency; #define parisc_requires_coherency() (0) #endif +extern int running_on_qemu; + #endif /* __ASSEMBLY__ */ #endif /* __ASM_PARISC_PROCESSOR_H */ diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index c3a532abac03..2e5216c28bb1 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -206,12 +206,6 @@ void __cpuidle arch_cpu_idle(void) static int __init parisc_idle_init(void) { - const char *marker; - - /* check QEMU/SeaBIOS marker in PAGE0 */ - marker = (char *) &PAGE0->pad0; - running_on_qemu = (memcmp(marker, "SeaBIOS", 8) == 0); - if (!running_on_qemu) cpu_idle_poll_ctrl(1); diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c index 2e66a887788e..581b0c66e521 100644 --- a/arch/parisc/kernel/setup.c +++ b/arch/parisc/kernel/setup.c @@ -403,6 +403,9 @@ void start_parisc(void) int ret, cpunum; struct pdc_coproc_cfg coproc_cfg; + /* check QEMU/SeaBIOS marker in PAGE0 */ + running_on_qemu = (memcmp(&PAGE0->pad0, "SeaBIOS", 8) == 0); + cpunum = smp_processor_id(); set_firmware_width_unlocked(); diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index 47ef8fdcd382..22754e0c3bda 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -299,7 +299,7 @@ static int __init init_cr16_clocksource(void) * The cr16 interval timers are not syncronized across CPUs, so mark * them unstable and lower rating on SMP systems. */ - if (num_online_cpus() > 1) { + if (num_online_cpus() > 1 && !running_on_qemu) { clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE; clocksource_cr16.rating = 0; } diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 99467d2b52c5..13065c827e1e 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -129,7 +129,7 @@ config PPC select ARCH_HAS_GCOV_PROFILE_ALL select GENERIC_SMP_IDLE_THREAD select GENERIC_CMOS_UPDATE - select GENERIC_CPU_VULNERABILITIES if PPC_BOOK3S_64 + select GENERIC_CPU_VULNERABILITIES if PPC_BARRIER_NOSPEC select GENERIC_TIME_VSYSCALL_OLD select GENERIC_CLOCKEVENTS select GENERIC_CLOCKEVENTS_BROADCAST if SMP @@ -166,6 +166,11 @@ config PPC select HAVE_ARCH_HARDENED_USERCOPY select HAVE_KERNEL_GZIP +config PPC_BARRIER_NOSPEC + bool + default y + depends on PPC_BOOK3S_64 || PPC_FSL_BOOK3E + config GENERIC_CSUM def_bool CPU_LITTLE_ENDIAN diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h index e0baba1535e6..f3daa175f86c 100644 --- a/arch/powerpc/include/asm/asm-prototypes.h +++ b/arch/powerpc/include/asm/asm-prototypes.h @@ -121,4 +121,10 @@ extern s64 __ashrdi3(s64, int); extern int __cmpdi2(s64, s64); extern int __ucmpdi2(u64, u64); +/* Patch sites */ +extern s32 patch__call_flush_count_cache; +extern s32 patch__flush_count_cache_return; + +extern long flush_count_cache; + #endif /* _ASM_POWERPC_ASM_PROTOTYPES_H */ diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h index 798ab37c9930..80024c4f2093 100644 --- a/arch/powerpc/include/asm/barrier.h +++ b/arch/powerpc/include/asm/barrier.h @@ -77,6 +77,27 @@ do { \ #define smp_mb__before_spinlock() smp_mb() +#ifdef CONFIG_PPC_BOOK3S_64 +#define NOSPEC_BARRIER_SLOT nop +#elif defined(CONFIG_PPC_FSL_BOOK3E) +#define NOSPEC_BARRIER_SLOT nop; nop +#endif + +#ifdef CONFIG_PPC_BARRIER_NOSPEC +/* + * Prevent execution of subsequent instructions until preceding branches have + * been fully resolved and are no longer executing speculatively. + */ +#define barrier_nospec_asm NOSPEC_BARRIER_FIXUP_SECTION; NOSPEC_BARRIER_SLOT + +// This also acts as a compiler barrier due to the memory clobber. +#define barrier_nospec() asm (stringify_in_c(barrier_nospec_asm) ::: "memory") + +#else /* !CONFIG_PPC_BARRIER_NOSPEC */ +#define barrier_nospec_asm +#define barrier_nospec() +#endif /* CONFIG_PPC_BARRIER_NOSPEC */ + #include <asm-generic/barrier.h> #endif /* _ASM_POWERPC_BARRIER_H */ diff --git a/arch/powerpc/include/asm/code-patching-asm.h b/arch/powerpc/include/asm/code-patching-asm.h new file mode 100644 index 000000000000..ed7b1448493a --- /dev/null +++ b/arch/powerpc/include/asm/code-patching-asm.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2018, Michael Ellerman, IBM Corporation. + */ +#ifndef _ASM_POWERPC_CODE_PATCHING_ASM_H +#define _ASM_POWERPC_CODE_PATCHING_ASM_H + +/* Define a "site" that can be patched */ +.macro patch_site label name + .pushsection ".rodata" + .balign 4 + .global \name +\name: + .4byte \label - . + .popsection +.endm + +#endif /* _ASM_POWERPC_CODE_PATCHING_ASM_H */ diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h index b4ab1f497335..ab934f8232bd 100644 --- a/arch/powerpc/include/asm/code-patching.h +++ b/arch/powerpc/include/asm/code-patching.h @@ -28,6 +28,8 @@ unsigned int create_cond_branch(const unsigned int *addr, unsigned long target, int flags); int patch_branch(unsigned int *addr, unsigned long target, int flags); int patch_instruction(unsigned int *addr, unsigned int instr); +int patch_instruction_site(s32 *addr, unsigned int instr); +int patch_branch_site(s32 *site, unsigned long target, int flags); int instr_is_relative_branch(unsigned int instr); int instr_is_relative_link_branch(unsigned int instr); diff --git a/arch/powerpc/include/asm/feature-fixups.h b/arch/powerpc/include/asm/feature-fixups.h index 0bf8202feca6..175128e19025 100644 --- a/arch/powerpc/include/asm/feature-fixups.h +++ b/arch/powerpc/include/asm/feature-fixups.h @@ -213,6 +213,25 @@ void setup_feature_keys(void); FTR_ENTRY_OFFSET 951b-952b; \ .popsection; +#define NOSPEC_BARRIER_FIXUP_SECTION \ +953: \ + .pushsection __barrier_nospec_fixup,"a"; \ + .align 2; \ +954: \ + FTR_ENTRY_OFFSET 953b-954b; \ + .popsection; + +#define START_BTB_FLUSH_SECTION \ +955: \ + +#define END_BTB_FLUSH_SECTION \ +956: \ + .pushsection __btb_flush_fixup,"a"; \ + .align 2; \ +957: \ + FTR_ENTRY_OFFSET 955b-957b; \ + FTR_ENTRY_OFFSET 956b-957b; \ + .popsection; #ifndef __ASSEMBLY__ @@ -220,6 +239,8 @@ extern long stf_barrier_fallback; extern long __start___stf_entry_barrier_fixup, __stop___stf_entry_barrier_fixup; extern long __start___stf_exit_barrier_fixup, __stop___stf_exit_barrier_fixup; extern long __start___rfi_flush_fixup, __stop___rfi_flush_fixup; +extern long __start___barrier_nospec_fixup, __stop___barrier_nospec_fixup; +extern long __start__btb_flush_fixup, __stop__btb_flush_fixup; #endif diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index 9d978102bf0d..9587d301db55 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -316,10 +316,12 @@ #define H_CPU_CHAR_BRANCH_HINTS_HONORED (1ull << 58) // IBM bit 5 #define H_CPU_CHAR_THREAD_RECONFIG_CTRL (1ull << 57) // IBM bit 6 #define H_CPU_CHAR_COUNT_CACHE_DISABLED (1ull << 56) // IBM bit 7 +#define H_CPU_CHAR_BCCTR_FLUSH_ASSIST (1ull << 54) // IBM bit 9 #define H_CPU_BEHAV_FAVOUR_SECURITY (1ull << 63) // IBM bit 0 #define H_CPU_BEHAV_L1D_FLUSH_PR (1ull << 62) // IBM bit 1 #define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR (1ull << 61) // IBM bit 2 +#define H_CPU_BEHAV_FLUSH_COUNT_CACHE (1ull << 58) // IBM bit 5 #ifndef __ASSEMBLY__ #include <linux/types.h> diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index c4ced1d01d57..48e8f1f14872 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -225,6 +225,7 @@ /* Misc instructions for BPF compiler */ #define PPC_INST_LBZ 0x88000000 #define PPC_INST_LD 0xe8000000 +#define PPC_INST_LDX 0x7c00002a #define PPC_INST_LHZ 0xa0000000 #define PPC_INST_LWZ 0x80000000 #define PPC_INST_LHBRX 0x7c00062c @@ -232,6 +233,7 @@ #define PPC_INST_STB 0x98000000 #define PPC_INST_STH 0xb0000000 #define PPC_INST_STD 0xf8000000 +#define PPC_INST_STDX 0x7c00012a #define PPC_INST_STDU 0xf8000001 #define PPC_INST_STW 0x90000000 #define PPC_INST_STWU 0x94000000 diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h index c73750b0d9fa..bbd35ba36a22 100644 --- a/arch/powerpc/include/asm/ppc_asm.h +++ b/arch/powerpc/include/asm/ppc_asm.h @@ -437,7 +437,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601) .machine push ; \ .machine "power4" ; \ lis scratch,0x60000000@h; \ - dcbt r0,scratch,0b01010; \ + dcbt 0,scratch,0b01010; \ .machine pop /* @@ -780,4 +780,25 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601) .long 0x2400004c /* rfid */ #endif /* !CONFIG_PPC_BOOK3E */ #endif /* __ASSEMBLY__ */ + +/* + * Helper macro for exception table entries + */ +#define EX_TABLE(_fault, _target) \ + stringify_in_c(.section __ex_table,"a";)\ + stringify_in_c(.balign 4;) \ + stringify_in_c(.long (_fault) - . ;) \ + stringify_in_c(.long (_target) - . ;) \ + stringify_in_c(.previous) + +#ifdef CONFIG_PPC_FSL_BOOK3E +#define BTB_FLUSH(reg) \ + lis reg,BUCSR_INIT@h; \ + ori reg,reg,BUCSR_INIT@l; \ + mtspr SPRN_BUCSR,reg; \ + isync; +#else +#define BTB_FLUSH(reg) +#endif /* CONFIG_PPC_FSL_BOOK3E */ + #endif /* _ASM_POWERPC_PPC_ASM_H */ diff --git a/arch/powerpc/include/asm/security_features.h b/arch/powerpc/include/asm/security_features.h index 44989b22383c..759597bf0fd8 100644 --- a/arch/powerpc/include/asm/security_features.h +++ b/arch/powerpc/include/asm/security_features.h @@ -22,6 +22,7 @@ enum stf_barrier_type { void setup_stf_barrier(void); void do_stf_barrier_fixups(enum stf_barrier_type types); +void setup_count_cache_flush(void); static inline void security_ftr_set(unsigned long feature) { @@ -59,6 +60,9 @@ static inline bool security_ftr_enabled(unsigned long feature) // Indirect branch prediction cache disabled #define SEC_FTR_COUNT_CACHE_DISABLED 0x0000000000000020ull +// bcctr 2,0,0 triggers a hardware assisted count cache flush +#define SEC_FTR_BCCTR_FLUSH_ASSIST 0x0000000000000800ull + // Features indicating need for Spectre/Meltdown mitigations @@ -74,6 +78,9 @@ static inline bool security_ftr_enabled(unsigned long feature) // Firmware configuration indicates user favours security over performance #define SEC_FTR_FAVOUR_SECURITY 0x0000000000000200ull +// Software required to flush count cache on context switch +#define SEC_FTR_FLUSH_COUNT_CACHE 0x0000000000000400ull + // Features enabled by default #define SEC_FTR_DEFAULT \ diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h index 3f160cd20107..862ebce3ae54 100644 --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -8,6 +8,7 @@ extern void ppc_printk_progress(char *s, unsigned short hex); extern unsigned int rtas_data; extern unsigned long long memory_limit; +extern bool init_mem_is_free; extern unsigned long klimit; extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask); @@ -50,6 +51,26 @@ enum l1d_flush_type { void setup_rfi_flush(enum l1d_flush_type, bool enable); void do_rfi_flush_fixups(enum l1d_flush_type types); +#ifdef CONFIG_PPC_BARRIER_NOSPEC +void setup_barrier_nospec(void); +#else +static inline void setup_barrier_nospec(void) { }; +#endif +void do_barrier_nospec_fixups(bool enable); +extern bool barrier_nospec_enabled; + +#ifdef CONFIG_PPC_BARRIER_NOSPEC +void do_barrier_nospec_fixups_range(bool enable, void *start, void *end); +#else +static inline void do_barrier_nospec_fixups_range(bool enable, void *start, void *end) { }; +#endif + +#ifdef CONFIG_PPC_FSL_BOOK3E +void setup_spectre_v2(void); +#else +static inline void setup_spectre_v2(void) {}; +#endif +void do_btb_flush_fixups(void); #endif /* !__ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h index 8b3b46b7b0f2..229c91bcf616 100644 --- a/arch/powerpc/include/asm/topology.h +++ b/arch/powerpc/include/asm/topology.h @@ -90,6 +90,8 @@ static inline int prrn_is_enabled(void) #define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu)) #define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu)) #define topology_core_id(cpu) (cpu_to_core_id(cpu)) + +int dlpar_cpu_readd(int cpu); #endif #endif diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index 31913b3ac7ab..da852153c1f8 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -269,6 +269,7 @@ do { \ __chk_user_ptr(ptr); \ if (!is_kernel_addr((unsigned long)__gu_addr)) \ might_fault(); \ + barrier_nospec(); \ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ (x) = (__typeof__(*(ptr)))__gu_val; \ __gu_err; \ @@ -280,8 +281,10 @@ do { \ unsigned long __gu_val = 0; \ __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ might_fault(); \ - if (access_ok(VERIFY_READ, __gu_addr, (size))) \ + if (access_ok(VERIFY_READ, __gu_addr, (size))) { \ + barrier_nospec(); \ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ + } \ (x) = (__force __typeof__(*(ptr)))__gu_val; \ __gu_err; \ }) @@ -292,6 +295,7 @@ do { \ unsigned long __gu_val; \ __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ __chk_user_ptr(ptr); \ + barrier_nospec(); \ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ (x) = (__force __typeof__(*(ptr)))__gu_val; \ __gu_err; \ @@ -348,15 +352,19 @@ static inline unsigned long __copy_from_user_inatomic(void *to, switch (n) { case 1: + barrier_nospec(); __get_user_size(*(u8 *)to, from, 1, ret); break; case 2: + barrier_nospec(); __get_user_size(*(u16 *)to, from, 2, ret); break; case 4: + barrier_nospec(); __get_user_size(*(u32 *)to, from, 4, ret); break; case 8: + barrier_nospec(); __get_user_size(*(u64 *)to, from, 8, ret); break; } @@ -366,6 +374,7 @@ static inline unsigned long __copy_from_user_inatomic(void *to, check_object_size(to, n, false); + barrier_nospec(); return __copy_tofrom_user((__force void __user *)to, from, n); } diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 13885786282b..d80fbf0884ff 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -44,9 +44,10 @@ obj-$(CONFIG_PPC64) += setup_64.o sys_ppc32.o \ obj-$(CONFIG_VDSO32) += vdso32/ obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o -obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o security.o +obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_book3e.o +obj-$(CONFIG_PPC_BARRIER_NOSPEC) += security.o obj-$(CONFIG_PPC64) += vdso64/ obj-$(CONFIG_ALTIVEC) += vecemu.o obj-$(CONFIG_PPC_970_NAP) += idle_power4.o diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 6dbaeff192b9..3a3018036ec1 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -34,6 +34,7 @@ #include <asm/ftrace.h> #include <asm/ptrace.h> #include <asm/export.h> +#include <asm/barrier.h> /* * MSR_KERNEL is > 0x10000 on 4xx/Book-E since it include MSR_CE. @@ -347,6 +348,15 @@ syscall_dotrace_cont: ori r10,r10,sys_call_table@l slwi r0,r0,2 bge- 66f + + barrier_nospec_asm + /* + * Prevent the load of the handler below (based on the user-passed + * system call number) being speculatively executed until the test + * against NR_syscalls and branch to .66f above has + * committed. + */ + lwzx r10,r10,r0 /* Fetch system call handler [ptr] */ mtlr r10 addi r9,r1,STACK_FRAME_OVERHEAD @@ -698,6 +708,9 @@ fast_exception_return: mtcr r10 lwz r10,_LINK(r11) mtlr r10 + /* Clear the exception_marker on the stack to avoid confusing stacktrace */ + li r10, 0 + stw r10, 8(r11) REST_GPR(10, r11) mtspr SPRN_SRR1,r9 mtspr SPRN_SRR0,r12 @@ -939,6 +952,9 @@ END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX) mtcrf 0xFF,r10 mtlr r11 + /* Clear the exception_marker on the stack to avoid confusing stacktrace */ + li r10, 0 + stw r10, 8(r1) /* * Once we put values in SRR0 and SRR1, we are in a state * where exceptions are not recoverable, since taking an @@ -976,6 +992,9 @@ exc_exit_restart_end: mtlr r11 lwz r10,_CCR(r1) mtcrf 0xff,r10 + /* Clear the exception_marker on the stack to avoid confusing stacktrace */ + li r10, 0 + stw r10, 8(r1) REST_2GPRS(9, r1) .globl exc_exit_restart exc_exit_restart: diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 660f8496020e..816b82187323 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -26,6 +26,7 @@ #include <asm/page.h> #include <asm/mmu.h> #include <asm/thread_info.h> +#include <asm/code-patching-asm.h> #include <asm/ppc_asm.h> #include <asm/asm-offsets.h> #include <asm/cputable.h> @@ -38,6 +39,7 @@ #include <asm/context_tracking.h> #include <asm/tm.h> #include <asm/ppc-opcode.h> +#include <asm/barrier.h> #include <asm/export.h> #ifdef CONFIG_PPC_BOOK3S #include <asm/exception-64s.h> @@ -78,6 +80,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM) std r0,GPR0(r1) std r10,GPR1(r1) beq 2f /* if from kernel mode */ +#ifdef CONFIG_PPC_FSL_BOOK3E +START_BTB_FLUSH_SECTION + BTB_FLUSH(r10) +END_BTB_FLUSH_SECTION +#endif ACCOUNT_CPU_USER_ENTRY(r13, r10, r11) 2: std r2,GPR2(r1) std r3,GPR3(r1) @@ -180,6 +187,15 @@ system_call: /* label this so stack traces look sane */ clrldi r8,r8,32 15: slwi r0,r0,4 + + barrier_nospec_asm + /* + * Prevent the load of the handler below (based on the user-passed + * system call number) being speculatively executed until the test + * against NR_syscalls and branch to .Lsyscall_enosys above has + * committed. + */ + ldx r12,r11,r0 /* Fetch system call handler [ptr] */ mtctr r12 bctrl /* Call handler */ @@ -473,6 +489,57 @@ _GLOBAL(ret_from_kernel_thread) li r3,0 b .Lsyscall_exit +#ifdef CONFIG_PPC_BOOK3S_64 + +#define FLUSH_COUNT_CACHE \ +1: nop; \ + patch_site 1b, patch__call_flush_count_cache + + +#define BCCTR_FLUSH .long 0x4c400420 + +.macro nops number + .rept \number + nop + .endr +.endm + +.balign 32 +.global flush_count_cache +flush_count_cache: + /* Save LR into r9 */ + mflr r9 + + .rept 64 + bl .+4 + .endr + b 1f + nops 6 + + .balign 32 + /* Restore LR */ +1: mtlr r9 + li r9,0x7fff + mtctr r9 + + BCCTR_FLUSH + +2: nop + patch_site 2b patch__flush_count_cache_return + + nops 3 + + .rept 278 + .balign 32 + BCCTR_FLUSH + nops 7 + .endr + + blr +#else +#define FLUSH_COUNT_CACHE +#endif /* CONFIG_PPC_BOOK3S_64 */ + /* * This routine switches between two different tasks. The process * state of one is saved on its kernel stack. Then the state @@ -504,6 +571,8 @@ _GLOBAL(_switch) std r23,_CCR(r1) std r1,KSP(r3) /* Set old stack pointer */ + FLUSH_COUNT_CACHE + #ifdef CONFIG_SMP /* We need a sync somewhere here to make sure that if the * previous task gets rescheduled on another CPU, it sees all diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index ca03eb229a9a..423b5257d3a1 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -295,7 +295,8 @@ ret_from_mc_except: andi. r10,r11,MSR_PR; /* save stack pointer */ \ beq 1f; /* branch around if supervisor */ \ ld r1,PACAKSAVE(r13); /* get kernel stack coming from usr */\ -1: cmpdi cr1,r1,0; /* check if SP makes sense */ \ +1: type##_BTB_FLUSH \ + cmpdi cr1,r1,0; /* check if SP makes sense */ \ bge- cr1,exc_##n##_bad_stack;/* bad stack (TODO: out of line) */ \ mfspr r10,SPRN_##type##_SRR0; /* read SRR0 before touching stack */ @@ -327,6 +328,30 @@ ret_from_mc_except: #define SPRN_MC_SRR0 SPRN_MCSRR0 #define SPRN_MC_SRR1 SPRN_MCSRR1 +#ifdef CONFIG_PPC_FSL_BOOK3E +#define GEN_BTB_FLUSH \ + START_BTB_FLUSH_SECTION \ + beq 1f; \ + BTB_FLUSH(r10) \ + 1: \ + END_BTB_FLUSH_SECTION + +#define CRIT_BTB_FLUSH \ + START_BTB_FLUSH_SECTION \ + BTB_FLUSH(r10) \ + END_BTB_FLUSH_SECTION + +#define DBG_BTB_FLUSH CRIT_BTB_FLUSH +#define MC_BTB_FLUSH CRIT_BTB_FLUSH +#define GDBELL_BTB_FLUSH GEN_BTB_FLUSH +#else +#define GEN_BTB_FLUSH +#define CRIT_BTB_FLUSH +#define DBG_BTB_FLUSH +#define MC_BTB_FLUSH +#define GDBELL_BTB_FLUSH +#endif + #define NORMAL_EXCEPTION_PROLOG(n, intnum, addition) \ EXCEPTION_PROLOG(n, intnum, GEN, addition##_GEN(n)) diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h index a620203f7de3..7b98c7351f6c 100644 --- a/arch/powerpc/kernel/head_booke.h +++ b/arch/powerpc/kernel/head_booke.h @@ -31,6 +31,16 @@ */ #define THREAD_NORMSAVE(offset) (THREAD_NORMSAVES + (offset * 4)) +#ifdef CONFIG_PPC_FSL_BOOK3E +#define BOOKE_CLEAR_BTB(reg) \ +START_BTB_FLUSH_SECTION \ + BTB_FLUSH(reg) \ +END_BTB_FLUSH_SECTION +#else +#define BOOKE_CLEAR_BTB(reg) +#endif + + #define NORMAL_EXCEPTION_PROLOG(intno) \ mtspr SPRN_SPRG_WSCRATCH0, r10; /* save one register */ \ mfspr r10, SPRN_SPRG_THREAD; \ @@ -42,6 +52,7 @@ andi. r11, r11, MSR_PR; /* check whether user or kernel */\ mr r11, r1; \ beq 1f; \ + BOOKE_CLEAR_BTB(r11) \ /* if from user, start at top of this thread's kernel stack */ \ lwz r11, THREAD_INFO-THREAD(r10); \ ALLOC_STACK_FRAME(r11, THREAD_SIZE); \ @@ -127,6 +138,7 @@ stw r9,_CCR(r8); /* save CR on stack */\ mfspr r11,exc_level_srr1; /* check whether user or kernel */\ DO_KVM BOOKE_INTERRUPT_##intno exc_level_srr1; \ + BOOKE_CLEAR_BTB(r10) \ andi. r11,r11,MSR_PR; \ mfspr r11,SPRN_SPRG_THREAD; /* if from user, start at top of */\ lwz r11,THREAD_INFO-THREAD(r11); /* this thread's kernel stack */\ diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index bf4c6021515f..60a0aeefc4a7 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -452,6 +452,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV) mfcr r13 stw r13, THREAD_NORMSAVE(3)(r10) DO_KVM BOOKE_INTERRUPT_DTLB_MISS SPRN_SRR1 +START_BTB_FLUSH_SECTION + mfspr r11, SPRN_SRR1 + andi. r10,r11,MSR_PR + beq 1f + BTB_FLUSH(r10) +1: +END_BTB_FLUSH_SECTION mfspr r10, SPRN_DEAR /* Get faulting address */ /* If we are faulting a kernel address, we have to use the @@ -546,6 +553,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV) mfcr r13 stw r13, THREAD_NORMSAVE(3)(r10) DO_KVM BOOKE_INTERRUPT_ITLB_MISS SPRN_SRR1 +START_BTB_FLUSH_SECTION + mfspr r11, SPRN_SRR1 + andi. r10,r11,MSR_PR + beq 1f + BTB_FLUSH(r10) +1: +END_BTB_FLUSH_SECTION + mfspr r10, SPRN_SRR0 /* Get faulting address */ /* If we are faulting a kernel address, we have to use the diff --git a/arch/powerpc/kernel/module.c b/arch/powerpc/kernel/module.c index 30b89d5cbb03..3b1c3bb91025 100644 --- a/arch/powerpc/kernel/module.c +++ b/arch/powerpc/kernel/module.c @@ -72,7 +72,15 @@ int module_finalize(const Elf_Ehdr *hdr, do_feature_fixups(powerpc_firmware_features, (void *)sect->sh_addr, (void *)sect->sh_addr + sect->sh_size); -#endif +#endif /* CONFIG_PPC64 */ + +#ifdef CONFIG_PPC_BARRIER_NOSPEC + sect = find_section(hdr, sechdrs, "__spec_barrier_fixup"); + if (sect != NULL) + do_barrier_nospec_fixups_range(barrier_nospec_enabled, + (void *)sect->sh_addr, + (void *)sect->sh_addr + sect->sh_size); +#endif /* CONFIG_PPC_BARRIER_NOSPEC */ sect = find_section(hdr, sechdrs, "__lwsync_fixup"); if (sect != NULL) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 1c141d50fbc6..609f0e87ced7 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -153,7 +153,7 @@ void __giveup_fpu(struct task_struct *tsk) save_fpu(tsk); msr = tsk->thread.regs->msr; - msr &= ~MSR_FP; + msr &= ~(MSR_FP|MSR_FE0|MSR_FE1); #ifdef CONFIG_VSX if (cpu_has_feature(CPU_FTR_VSX)) msr &= ~MSR_VSX; diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index adfa63e7df8c..4f2829634d79 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -547,6 +547,7 @@ static int vr_get(struct task_struct *target, const struct user_regset *regset, /* * Copy out only the low-order word of vrsave. */ + int start, end; union { elf_vrreg_t reg; u32 word; @@ -555,8 +556,10 @@ static int vr_get(struct task_struct *target, const struct user_regset *regset, vrsave.word = target->thread.vrsave; + start = 33 * sizeof(vector128); + end = start + sizeof(vrsave); ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &vrsave, - 33 * sizeof(vector128), -1); + start, end); } return ret; @@ -594,6 +597,7 @@ static int vr_set(struct task_struct *target, const struct user_regset *regset, /* * We use only the first word of vrsave. */ + int start, end; union { elf_vrreg_t reg; u32 word; @@ -602,8 +606,10 @@ static int vr_set(struct task_struct *target, const struct user_regset *regset, vrsave.word = target->thread.vrsave; + start = 33 * sizeof(vector128); + end = start + sizeof(vrsave); ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &vrsave, - 33 * sizeof(vector128), -1); + start, end); if (!ret) target->thread.vrsave = vrsave.word; } diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c index 2277df84ef6e..30542e833ebe 100644 --- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -9,11 +9,121 @@ #include <linux/device.h> #include <linux/seq_buf.h> +#include <asm/asm-prototypes.h> +#include <asm/code-patching.h> +#include <asm/debug.h> #include <asm/security_features.h> +#include <asm/setup.h> unsigned long powerpc_security_features __read_mostly = SEC_FTR_DEFAULT; +enum count_cache_flush_type { + COUNT_CACHE_FLUSH_NONE = 0x1, + COUNT_CACHE_FLUSH_SW = 0x2, + COUNT_CACHE_FLUSH_HW = 0x4, +}; +static enum count_cache_flush_type count_cache_flush_type = COUNT_CACHE_FLUSH_NONE; + +bool barrier_nospec_enabled; +static bool no_nospec; +static bool btb_flush_enabled; +#ifdef CONFIG_PPC_FSL_BOOK3E +static bool no_spectrev2; +#endif + +static void enable_barrier_nospec(bool enable) +{ + barrier_nospec_enabled = enable; + do_barrier_nospec_fixups(enable); +} + +void setup_barrier_nospec(void) +{ + bool enable; + + /* + * It would make sense to check SEC_FTR_SPEC_BAR_ORI31 below as well. + * But there's a good reason not to. The two flags we check below are + * both are enabled by default in the kernel, so if the hcall is not + * functional they will be enabled. + * On a system where the host firmware has been updated (so the ori + * functions as a barrier), but on which the hypervisor (KVM/Qemu) has + * not been updated, we would like to enable the barrier. Dropping the + * check for SEC_FTR_SPEC_BAR_ORI31 achieves that. The only downside is + * we potentially enable the barrier on systems where the host firmware + * is not updated, but that's harmless as it's a no-op. + */ + enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) && + security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR); + + if (!no_nospec) + enable_barrier_nospec(enable); +} + +static int __init handle_nospectre_v1(char *p) +{ + no_nospec = true; + + return 0; +} +early_param("nospectre_v1", handle_nospectre_v1); + +#ifdef CONFIG_DEBUG_FS +static int barrier_nospec_set(void *data, u64 val) +{ + switch (val) { + case 0: + case 1: + break; + default: + return -EINVAL; + } + + if (!!val == !!barrier_nospec_enabled) + return 0; + + enable_barrier_nospec(!!val); + + return 0; +} + +static int barrier_nospec_get(void *data, u64 *val) +{ + *val = barrier_nospec_enabled ? 1 : 0; + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(fops_barrier_nospec, + barrier_nospec_get, barrier_nospec_set, "%llu\n"); + +static __init int barrier_nospec_debugfs_init(void) +{ + debugfs_create_file("barrier_nospec", 0600, powerpc_debugfs_root, NULL, + &fops_barrier_nospec); + return 0; +} +device_initcall(barrier_nospec_debugfs_init); +#endif /* CONFIG_DEBUG_FS */ + +#ifdef CONFIG_PPC_FSL_BOOK3E +static int __init handle_nospectre_v2(char *p) +{ + no_spectrev2 = true; + + return 0; +} +early_param("nospectre_v2", handle_nospectre_v2); +void setup_spectre_v2(void) +{ + if (no_spectrev2) + do_btb_flush_fixups(); + else + btb_flush_enabled = true; +} +#endif /* CONFIG_PPC_FSL_BOOK3E */ + +#ifdef CONFIG_PPC_BOOK3S_64 ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, char *buf) { bool thread_priv; @@ -46,25 +156,39 @@ ssize_t cpu_show_meltdown(struct device *dev, struct device_attribute *attr, cha return sprintf(buf, "Vulnerable\n"); } +#endif ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, char *buf) { - if (!security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR)) - return sprintf(buf, "Not affected\n"); + struct seq_buf s; - return sprintf(buf, "Vulnerable\n"); + seq_buf_init(&s, buf, PAGE_SIZE - 1); + + if (security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR)) { + if (barrier_nospec_enabled) + seq_buf_printf(&s, "Mitigation: __user pointer sanitization"); + else + seq_buf_printf(&s, "Vulnerable"); + + if (security_ftr_enabled(SEC_FTR_SPEC_BAR_ORI31)) + seq_buf_printf(&s, ", ori31 speculation barrier enabled"); + + seq_buf_printf(&s, "\n"); + } else + seq_buf_printf(&s, "Not affected\n"); + + return s.len; } ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, char *buf) { - bool bcs, ccd, ori; struct seq_buf s; + bool bcs, ccd; seq_buf_init(&s, buf, PAGE_SIZE - 1); bcs = security_ftr_enabled(SEC_FTR_BCCTRL_SERIALISED); ccd = security_ftr_enabled(SEC_FTR_COUNT_CACHE_DISABLED); - ori = security_ftr_enabled(SEC_FTR_SPEC_BAR_ORI31); if (bcs || ccd) { seq_buf_printf(&s, "Mitigation: "); @@ -77,17 +201,23 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, c if (ccd) seq_buf_printf(&s, "Indirect branch cache disabled"); - } else + } else if (count_cache_flush_type != COUNT_CACHE_FLUSH_NONE) { + seq_buf_printf(&s, "Mitigation: Software count cache flush"); + + if (count_cache_flush_type == COUNT_CACHE_FLUSH_HW) + seq_buf_printf(&s, " (hardware accelerated)"); + } else if (btb_flush_enabled) { + seq_buf_printf(&s, "Mitigation: Branch predictor state flush"); + } else { seq_buf_printf(&s, "Vulnerable"); - - if (ori) - seq_buf_printf(&s, ", ori31 speculation barrier enabled"); + } seq_buf_printf(&s, "\n"); return s.len; } +#ifdef CONFIG_PPC_BOOK3S_64 /* * Store-forwarding barrier support. */ @@ -235,3 +365,71 @@ static __init int stf_barrier_debugfs_init(void) } device_initcall(stf_barrier_debugfs_init); #endif /* CONFIG_DEBUG_FS */ + +static void toggle_count_cache_flush(bool enable) +{ + if (!enable || !security_ftr_enabled(SEC_FTR_FLUSH_COUNT_CACHE)) { + patch_instruction_site(&patch__call_flush_count_cache, PPC_INST_NOP); + count_cache_flush_type = COUNT_CACHE_FLUSH_NONE; + pr_info("count-cache-flush: software flush disabled.\n"); + return; + } + + patch_branch_site(&patch__call_flush_count_cache, + (u64)&flush_count_cache, BRANCH_SET_LINK); + + if (!security_ftr_enabled(SEC_FTR_BCCTR_FLUSH_ASSIST)) { + count_cache_flush_type = COUNT_CACHE_FLUSH_SW; + pr_info("count-cache-flush: full software flush sequence enabled.\n"); + return; + } + + patch_instruction_site(&patch__flush_count_cache_return, PPC_INST_BLR); + count_cache_flush_type = COUNT_CACHE_FLUSH_HW; + pr_info("count-cache-flush: hardware assisted flush sequence enabled\n"); +} + +void setup_count_cache_flush(void) +{ + toggle_count_cache_flush(true); +} + +#ifdef CONFIG_DEBUG_FS +static int count_cache_flush_set(void *data, u64 val) +{ + bool enable; + + if (val == 1) + enable = true; + else if (val == 0) + enable = false; + else + return -EINVAL; + + toggle_count_cache_flush(enable); + + return 0; +} + +static int count_cache_flush_get(void *data, u64 *val) +{ + if (count_cache_flush_type == COUNT_CACHE_FLUSH_NONE) + *val = 0; + else + *val = 1; + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(fops_count_cache_flush, count_cache_flush_get, + count_cache_flush_set, "%llu\n"); + +static __init int count_cache_flush_debugfs_init(void) +{ + debugfs_create_file("count_cache_flush", 0600, powerpc_debugfs_root, + NULL, &fops_count_cache_flush); + return 0; +} +device_initcall(count_cache_flush_debugfs_init); +#endif /* CONFIG_DEBUG_FS */ +#endif /* CONFIG_PPC_BOOK3S_64 */ diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index bf0f712ac0e0..5e7d70c5d065 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -918,6 +918,9 @@ void __init setup_arch(char **cmdline_p) if (ppc_md.setup_arch) ppc_md.setup_arch(); + setup_barrier_nospec(); + setup_spectre_v2(); + paging_init(); /* Initialize the MMU context management stuff. */ diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index d929afab7b24..bdf2f7b995bb 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -746,12 +746,25 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5, if (restore_tm_sigcontexts(current, &uc->uc_mcontext, &uc_transact->uc_mcontext)) goto badframe; - } - else - /* Fall through, for non-TM restore */ + } else #endif - if (restore_sigcontext(current, NULL, 1, &uc->uc_mcontext)) - goto badframe; + { + /* + * Fall through, for non-TM restore + * + * Unset MSR[TS] on the thread regs since MSR from user + * context does not have MSR active, and recheckpoint was + * not called since restore_tm_sigcontexts() was not called + * also. + * + * If not unsetting it, the code can RFID to userspace with + * MSR[TS] set, but without CPU in the proper state, + * causing a TM bad thing. + */ + current->thread.regs->msr &= ~MSR_TS_MASK; + if (restore_sigcontext(current, NULL, 1, &uc->uc_mcontext)) + goto badframe; + } if (restore_altstack(&uc->uc_stack)) goto badframe; diff --git a/arch/powerpc/kernel/swsusp_asm64.S b/arch/powerpc/kernel/swsusp_asm64.S index 988f38dced0f..82d8aae81c6a 100644 --- a/arch/powerpc/kernel/swsusp_asm64.S +++ b/arch/powerpc/kernel/swsusp_asm64.S @@ -179,7 +179,7 @@ nothing_to_copy: sld r3, r3, r0 li r0, 0 1: - dcbf r0,r3 + dcbf 0,r3 addi r3,r3,0x20 bdnz 1b diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index c16fddbb6ab8..50d365060855 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -153,8 +153,25 @@ SECTIONS *(__rfi_flush_fixup) __stop___rfi_flush_fixup = .; } -#endif +#endif /* CONFIG_PPC64 */ + +#ifdef CONFIG_PPC_BARRIER_NOSPEC + . = ALIGN(8); + __spec_barrier_fixup : AT(ADDR(__spec_barrier_fixup) - LOAD_OFFSET) { + __start___barrier_nospec_fixup = .; + *(__barrier_nospec_fixup) + __stop___barrier_nospec_fixup = .; + } +#endif /* CONFIG_PPC_BARRIER_NOSPEC */ +#ifdef CONFIG_PPC_FSL_BOOK3E + . = ALIGN(8); + __spec_btb_flush_fixup : AT(ADDR(__spec_btb_flush_fixup) - LOAD_OFFSET) { + __start__btb_flush_fixup = .; + *(__btb_flush_fixup) + __stop__btb_flush_fixup = .; + } +#endif EXCEPTION_TABLE(0) NOTES :kernel :notes diff --git a/arch/powerpc/kvm/bookehv_interrupts.S b/arch/powerpc/kvm/bookehv_interrupts.S index 81bd8a07aa51..612b7f6a887f 100644 --- a/arch/powerpc/kvm/bookehv_interrupts.S +++ b/arch/powerpc/kvm/bookehv_interrupts.S @@ -75,6 +75,10 @@ PPC_LL r1, VCPU_HOST_STACK(r4) PPC_LL r2, HOST_R2(r1) +START_BTB_FLUSH_SECTION + BTB_FLUSH(r10) +END_BTB_FLUSH_SECTION + mfspr r10, SPRN_PID lwz r8, VCPU_HOST_PID(r4) PPC_LL r11, VCPU_SHARED(r4) diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c index 990db69a1d0b..fa88f641ac03 100644 --- a/arch/powerpc/kvm/e500_emulate.c +++ b/arch/powerpc/kvm/e500_emulate.c @@ -277,6 +277,13 @@ int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong spr_va vcpu->arch.pwrmgtcr0 = spr_val; break; + case SPRN_BUCSR: + /* + * If we are here, it means that we have already flushed the + * branch predictor, so just return to guest. + */ + break; + /* extra exceptions */ #ifdef CONFIG_SPE_POSSIBLE case SPRN_IVOR32: diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 753d591f1b52..14535ad4cdd1 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -14,12 +14,20 @@ #include <asm/page.h> #include <asm/code-patching.h> #include <asm/uaccess.h> +#include <asm/setup.h> +#include <asm/sections.h> int patch_instruction(unsigned int *addr, unsigned int instr) { int err; + /* Make sure we aren't patching a freed init section */ + if (init_mem_is_free && init_section_contains(addr, 4)) { + pr_debug("Skipping init section patching addr: 0x%px\n", addr); + return 0; + } + __put_user_size(instr, addr, 4, err); if (err) return err; @@ -32,6 +40,22 @@ int patch_branch(unsigned int *addr, unsigned long target, int flags) return patch_instruction(addr, create_branch(addr, target, flags)); } +int patch_branch_site(s32 *site, unsigned long target, int flags) +{ + unsigned int *addr; + + addr = (unsigned int *)((unsigned long)site + *site); + return patch_instruction(addr, create_branch(addr, target, flags)); +} + +int patch_instruction_site(s32 *site, unsigned int instr) +{ + unsigned int *addr; + + addr = (unsigned int *)((unsigned long)site + *site); + return patch_instruction(addr, instr); +} + unsigned int create_branch(const unsigned int *addr, unsigned long target, int flags) { diff --git a/arch/powerpc/lib/copypage_power7.S b/arch/powerpc/lib/copypage_power7.S index a84d333ecb09..ca5fc8fa7efc 100644 --- a/arch/powerpc/lib/copypage_power7.S +++ b/arch/powerpc/lib/copypage_power7.S @@ -45,13 +45,13 @@ _GLOBAL(copypage_power7) .machine push .machine "power4" /* setup read stream 0 */ - dcbt r0,r4,0b01000 /* addr from */ - dcbt r0,r7,0b01010 /* length and depth from */ + dcbt 0,r4,0b01000 /* addr from */ + dcbt 0,r7,0b01010 /* length and depth from */ /* setup write stream 1 */ - dcbtst r0,r9,0b01000 /* addr to */ - dcbtst r0,r10,0b01010 /* length and depth to */ + dcbtst 0,r9,0b01000 /* addr to */ + dcbtst 0,r10,0b01010 /* length and depth to */ eieio - dcbt r0,r8,0b01010 /* all streams GO */ + dcbt 0,r8,0b01010 /* all streams GO */ .machine pop #ifdef CONFIG_ALTIVEC @@ -83,7 +83,7 @@ _GLOBAL(copypage_power7) li r12,112 .align 5 -1: lvx v7,r0,r4 +1: lvx v7,0,r4 lvx v6,r4,r6 lvx v5,r4,r7 lvx v4,r4,r8 @@ -92,7 +92,7 @@ _GLOBAL(copypage_power7) lvx v1,r4,r11 lvx v0,r4,r12 addi r4,r4,128 - stvx v7,r0,r3 + stvx v7,0,r3 stvx v6,r3,r6 stvx v5,r3,r7 stvx v4,r3,r8 diff --git a/arch/powerpc/lib/copyuser_power7.S b/arch/powerpc/lib/copyuser_power7.S index da0c568d18c4..391694814691 100644 --- a/arch/powerpc/lib/copyuser_power7.S +++ b/arch/powerpc/lib/copyuser_power7.S @@ -327,13 +327,13 @@ err1; stb r0,0(r3) .machine push .machine "power4" /* setup read stream 0 */ - dcbt r0,r6,0b01000 /* addr from */ - dcbt r0,r7,0b01010 /* length and depth from */ + dcbt 0,r6,0b01000 /* addr from */ + dcbt 0,r7,0b01010 /* length and depth from */ /* setup write stream 1 */ - dcbtst r0,r9,0b01000 /* addr to */ - dcbtst r0,r10,0b01010 /* length and depth to */ + dcbtst 0,r9,0b01000 /* addr to */ + dcbtst 0,r10,0b01010 /* length and depth to */ eieio - dcbt r0,r8,0b01010 /* all streams GO */ + dcbt 0,r8,0b01010 /* all streams GO */ .machine pop beq cr1,.Lunwind_stack_nonvmx_copy @@ -388,26 +388,26 @@ err3; std r0,0(r3) li r11,48 bf cr7*4+3,5f -err3; lvx v1,r0,r4 +err3; lvx v1,0,r4 addi r4,r4,16 -err3; stvx v1,r0,r3 +err3; stvx v1,0,r3 addi r3,r3,16 5: bf cr7*4+2,6f -err3; lvx v1,r0,r4 +err3; lvx v1,0,r4 err3; lvx v0,r4,r9 addi r4,r4,32 -err3; stvx v1,r0,r3 +err3; stvx v1,0,r3 err3; stvx v0,r3,r9 addi r3,r3,32 6: bf cr7*4+1,7f -err3; lvx v3,r0,r4 +err3; lvx v3,0,r4 err3; lvx v2,r4,r9 err3; lvx v1,r4,r10 err3; lvx v0,r4,r11 addi r4,r4,64 -err3; stvx v3,r0,r3 +err3; stvx v3,0,r3 err3; stvx v2,r3,r9 err3; stvx v1,r3,r10 err3; stvx v0,r3,r11 @@ -433,7 +433,7 @@ err3; stvx v0,r3,r11 */ .align 5 8: -err4; lvx v7,r0,r4 +err4; lvx v7,0,r4 err4; lvx v6,r4,r9 err4; lvx v5,r4,r10 err4; lvx v4,r4,r11 @@ -442,7 +442,7 @@ err4; lvx v2,r4,r14 err4; lvx v1,r4,r15 err4; lvx v0,r4,r16 addi r4,r4,128 -err4; stvx v7,r0,r3 +err4; stvx v7,0,r3 err4; stvx v6,r3,r9 err4; stvx v5,r3,r10 err4; stvx v4,r3,r11 @@ -463,29 +463,29 @@ err4; stvx v0,r3,r16 mtocrf 0x01,r6 bf cr7*4+1,9f -err3; lvx v3,r0,r4 +err3; lvx v3,0,r4 err3; lvx v2,r4,r9 err3; lvx v1,r4,r10 err3; lvx v0,r4,r11 addi r4,r4,64 -err3; stvx v3,r0,r3 +err3; stvx v3,0,r3 err3; stvx v2,r3,r9 err3; stvx v1,r3,r10 err3; stvx v0,r3,r11 addi r3,r3,64 9: bf cr7*4+2,10f -err3; lvx v1,r0,r4 +err3; lvx v1,0,r4 err3; lvx v0,r4,r9 addi r4,r4,32 -err3; stvx v1,r0,r3 +err3; stvx v1,0,r3 err3; stvx v0,r3,r9 addi r3,r3,32 10: bf cr7*4+3,11f -err3; lvx v1,r0,r4 +err3; lvx v1,0,r4 addi r4,r4,16 -err3; stvx v1,r0,r3 +err3; stvx v1,0,r3 addi r3,r3,16 /* Up to 15B to go */ @@ -565,25 +565,25 @@ err3; lvx v0,0,r4 addi r4,r4,16 bf cr7*4+3,5f -err3; lvx v1,r0,r4 +err3; lvx v1,0,r4 VPERM(v8,v0,v1,v16) addi r4,r4,16 -err3; stvx v8,r0,r3 +err3; stvx v8,0,r3 addi r3,r3,16 vor v0,v1,v1 5: bf cr7*4+2,6f -err3; lvx v1,r0,r4 +err3; lvx v1,0,r4 VPERM(v8,v0,v1,v16) err3; lvx v0,r4,r9 VPERM(v9,v1,v0,v16) addi r4,r4,32 -err3; stvx v8,r0,r3 +err3; stvx v8,0,r3 err3; stvx v9,r3,r9 addi r3,r3,32 6: bf cr7*4+1,7f -err3; lvx v3,r0,r4 +err3; lvx v3,0,r4 VPERM(v8,v0,v3,v16) err3; lvx v2,r4,r9 VPERM(v9,v3,v2,v16) @@ -592,7 +592,7 @@ err3; lvx v1,r4,r10 err3; lvx v0,r4,r11 VPERM(v11,v1,v0,v16) addi r4,r4,64 -err3; stvx v8,r0,r3 +err3; stvx v8,0,r3 err3; stvx v9,r3,r9 err3; stvx v10,r3,r10 err3; stvx v11,r3,r11 @@ -618,7 +618,7 @@ err3; stvx v11,r3,r11 */ .align 5 8: -err4; lvx v7,r0,r4 +err4; lvx v7,0,r4 VPERM(v8,v0,v7,v16) err4; lvx v6,r4,r9 VPERM(v9,v7,v6,v16) @@ -635,7 +635,7 @@ err4; lvx v1,r4,r15 err4; lvx v0,r4,r16 VPERM(v15,v1,v0,v16) addi r4,r4,128 -err4; stvx v8,r0,r3 +err4; stvx v8,0,r3 err4; stvx v9,r3,r9 err4; stvx v10,r3,r10 err4; stvx v11,r3,r11 @@ -656,7 +656,7 @@ err4; stvx v15,r3,r16 mtocrf 0x01,r6 bf cr7*4+1,9f -err3; lvx v3,r0,r4 +err3; lvx v3,0,r4 VPERM(v8,v0,v3,v16) err3; lvx v2,r4,r9 VPERM(v9,v3,v2,v16) @@ -665,27 +665,27 @@ err3; lvx v1,r4,r10 err3; lvx v0,r4,r11 VPERM(v11,v1,v0,v16) addi r4,r4,64 -err3; stvx v8,r0,r3 +err3; stvx v8,0,r3 err3; stvx v9,r3,r9 err3; stvx v10,r3,r10 err3; stvx v11,r3,r11 addi r3,r3,64 9: bf cr7*4+2,10f -err3; lvx v1,r0,r4 +err3; lvx v1,0,r4 VPERM(v8,v0,v1,v16) err3; lvx v0,r4,r9 VPERM(v9,v1,v0,v16) addi r4,r4,32 -err3; stvx v8,r0,r3 +err3; stvx v8,0,r3 err3; stvx v9,r3,r9 addi r3,r3,32 10: bf cr7*4+3,11f -err3; lvx v1,r0,r4 +err3; lvx v1,0,r4 VPERM(v8,v0,v1,v16) addi r4,r4,16 -err3; stvx v8,r0,r3 +err3; stvx v8,0,r3 addi r3,r3,16 /* Up to 15B to go */ diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c index cf1398e3c2e0..e6ed0ec94bc8 100644 --- a/arch/powerpc/lib/feature-fixups.c +++ b/arch/powerpc/lib/feature-fixups.c @@ -277,8 +277,101 @@ void do_rfi_flush_fixups(enum l1d_flush_type types) (types & L1D_FLUSH_MTTRIG) ? "mttrig type" : "unknown"); } + +void do_barrier_nospec_fixups_range(bool enable, void *fixup_start, void *fixup_end) +{ + unsigned int instr, *dest; + long *start, *end; + int i; + + start = fixup_start; + end = fixup_end; + + instr = 0x60000000; /* nop */ + + if (enable) { + pr_info("barrier-nospec: using ORI speculation barrier\n"); + instr = 0x63ff0000; /* ori 31,31,0 speculation barrier */ + } + + for (i = 0; start < end; start++, i++) { + dest = (void *)start + *start; + + pr_devel("patching dest %lx\n", (unsigned long)dest); + patch_instruction(dest, instr); + } + + printk(KERN_DEBUG "barrier-nospec: patched %d locations\n", i); +} + #endif /* CONFIG_PPC_BOOK3S_64 */ +#ifdef CONFIG_PPC_BARRIER_NOSPEC +void do_barrier_nospec_fixups(bool enable) +{ + void *start, *end; + + start = PTRRELOC(&__start___barrier_nospec_fixup), + end = PTRRELOC(&__stop___barrier_nospec_fixup); + + do_barrier_nospec_fixups_range(enable, start, end); +} +#endif /* CONFIG_PPC_BARRIER_NOSPEC */ + +#ifdef CONFIG_PPC_FSL_BOOK3E +void do_barrier_nospec_fixups_range(bool enable, void *fixup_start, void *fixup_end) +{ + unsigned int instr[2], *dest; + long *start, *end; + int i; + + start = fixup_start; + end = fixup_end; + + instr[0] = PPC_INST_NOP; + instr[1] = PPC_INST_NOP; + + if (enable) { + pr_info("barrier-nospec: using isync; sync as speculation barrier\n"); + instr[0] = PPC_INST_ISYNC; + instr[1] = PPC_INST_SYNC; + } + + for (i = 0; start < end; start++, i++) { + dest = (void *)start + *start; + + pr_devel("patching dest %lx\n", (unsigned long)dest); + patch_instruction(dest, instr[0]); + patch_instruction(dest + 1, instr[1]); + } + + printk(KERN_DEBUG "barrier-nospec: patched %d locations\n", i); +} + +static void patch_btb_flush_section(long *curr) +{ + unsigned int *start, *end; + + start = (void *)curr + *curr; + end = (void *)curr + *(curr + 1); + for (; start < end; start++) { + pr_devel("patching dest %lx\n", (unsigned long)start); + patch_instruction(start, PPC_INST_NOP); + } +} + +void do_btb_flush_fixups(void) +{ + long *start, *end; + + start = PTRRELOC(&__start__btb_flush_fixup); + end = PTRRELOC(&__stop__btb_flush_fixup); + + for (; start < end; start += 2) + patch_btb_flush_section(start); +} +#endif /* CONFIG_PPC_FSL_BOOK3E */ + void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end) { long *start, *end; diff --git a/arch/powerpc/lib/memcpy_power7.S b/arch/powerpc/lib/memcpy_power7.S index 786234fd4e91..193909abd18b 100644 --- a/arch/powerpc/lib/memcpy_power7.S +++ b/arch/powerpc/lib/memcpy_power7.S @@ -261,12 +261,12 @@ _GLOBAL(memcpy_power7) .machine push .machine "power4" - dcbt r0,r6,0b01000 - dcbt r0,r7,0b01010 - dcbtst r0,r9,0b01000 - dcbtst r0,r10,0b01010 + dcbt 0,r6,0b01000 + dcbt 0,r7,0b01010 + dcbtst 0,r9,0b01000 + dcbtst 0,r10,0b01010 eieio - dcbt r0,r8,0b01010 /* GO */ + dcbt 0,r8,0b01010 /* GO */ .machine pop beq cr1,.Lunwind_stack_nonvmx_copy @@ -321,26 +321,26 @@ _GLOBAL(memcpy_power7) li r11,48 bf cr7*4+3,5f - lvx v1,r0,r4 + lvx v1,0,r4 addi r4,r4,16 - stvx v1,r0,r3 + stvx v1,0,r3 addi r3,r3,16 5: bf cr7*4+2,6f - lvx v1,r0,r4 + lvx v1,0,r4 lvx v0,r4,r9 addi r4,r4,32 - stvx v1,r0,r3 + stvx v1,0,r3 stvx v0,r3,r9 addi r3,r3,32 6: bf cr7*4+1,7f - lvx v3,r0,r4 + lvx v3,0,r4 lvx v2,r4,r9 lvx v1,r4,r10 lvx v0,r4,r11 addi r4,r4,64 - stvx v3,r0,r3 + stvx v3,0,r3 stvx v2,r3,r9 stvx v1,r3,r10 stvx v0,r3,r11 @@ -366,7 +366,7 @@ _GLOBAL(memcpy_power7) */ .align 5 8: - lvx v7,r0,r4 + lvx v7,0,r4 lvx v6,r4,r9 lvx v5,r4,r10 lvx v4,r4,r11 @@ -375,7 +375,7 @@ _GLOBAL(memcpy_power7) lvx v1,r4,r15 lvx v0,r4,r16 addi r4,r4,128 - stvx v7,r0,r3 + stvx v7,0,r3 stvx v6,r3,r9 stvx v5,r3,r10 stvx v4,r3,r11 @@ -396,29 +396,29 @@ _GLOBAL(memcpy_power7) mtocrf 0x01,r6 bf cr7*4+1,9f - lvx v3,r0,r4 + lvx v3,0,r4 lvx v2,r4,r9 lvx v1,r4,r10 lvx v0,r4,r11 addi r4,r4,64 - stvx v3,r0,r3 + stvx v3,0,r3 stvx v2,r3,r9 stvx v1,r3,r10 stvx v0,r3,r11 addi r3,r3,64 9: bf cr7*4+2,10f - lvx v1,r0,r4 + lvx v1,0,r4 lvx v0,r4,r9 addi r4,r4,32 - stvx v1,r0,r3 + stvx v1,0,r3 stvx v0,r3,r9 addi r3,r3,32 10: bf cr7*4+3,11f - lvx v1,r0,r4 + lvx v1,0,r4 addi r4,r4,16 - stvx v1,r0,r3 + stvx v1,0,r3 addi r3,r3,16 /* Up to 15B to go */ @@ -499,25 +499,25 @@ _GLOBAL(memcpy_power7) addi r4,r4,16 bf cr7*4+3,5f - lvx v1,r0,r4 + lvx v1,0,r4 VPERM(v8,v0,v1,v16) addi r4,r4,16 - stvx v8,r0,r3 + stvx v8,0,r3 addi r3,r3,16 vor v0,v1,v1 5: bf cr7*4+2,6f - lvx v1,r0,r4 + lvx v1,0,r4 VPERM(v8,v0,v1,v16) lvx v0,r4,r9 VPERM(v9,v1,v0,v16) addi r4,r4,32 - stvx v8,r0,r3 + stvx v8,0,r3 stvx v9,r3,r9 addi r3,r3,32 6: bf cr7*4+1,7f - lvx v3,r0,r4 + lvx v3,0,r4 VPERM(v8,v0,v3,v16) lvx v2,r4,r9 VPERM(v9,v3,v2,v16) @@ -526,7 +526,7 @@ _GLOBAL(memcpy_power7) lvx v0,r4,r11 VPERM(v11,v1,v0,v16) addi r4,r4,64 - stvx v8,r0,r3 + stvx v8,0,r3 stvx v9,r3,r9 stvx v10,r3,r10 stvx v11,r3,r11 @@ -552,7 +552,7 @@ _GLOBAL(memcpy_power7) */ .align 5 8: - lvx v7,r0,r4 + lvx v7,0,r4 VPERM(v8,v0,v7,v16) lvx v6,r4,r9 VPERM(v9,v7,v6,v16) @@ -569,7 +569,7 @@ _GLOBAL(memcpy_power7) lvx v0,r4,r16 VPERM(v15,v1,v0,v16) addi r4,r4,128 - stvx v8,r0,r3 + stvx v8,0,r3 stvx v9,r3,r9 stvx v10,r3,r10 stvx v11,r3,r11 @@ -590,7 +590,7 @@ _GLOBAL(memcpy_power7) mtocrf 0x01,r6 bf cr7*4+1,9f - lvx v3,r0,r4 + lvx v3,0,r4 VPERM(v8,v0,v3,v16) lvx v2,r4,r9 VPERM(v9,v3,v2,v16) @@ -599,27 +599,27 @@ _GLOBAL(memcpy_power7) lvx v0,r4,r11 VPERM(v11,v1,v0,v16) addi r4,r4,64 - stvx v8,r0,r3 + stvx v8,0,r3 stvx v9,r3,r9 stvx v10,r3,r10 stvx v11,r3,r11 addi r3,r3,64 9: bf cr7*4+2,10f - lvx v1,r0,r4 + lvx v1,0,r4 VPERM(v8,v0,v1,v16) lvx v0,r4,r9 VPERM(v9,v1,v0,v16) addi r4,r4,32 - stvx v8,r0,r3 + stvx v8,0,r3 stvx v9,r3,r9 addi r3,r3,32 10: bf cr7*4+3,11f - lvx v1,r0,r4 + lvx v1,0,r4 VPERM(v8,v0,v1,v16) addi r4,r4,16 - stvx v8,r0,r3 + stvx v8,0,r3 addi r3,r3,16 /* Up to 15B to go */ diff --git a/arch/powerpc/lib/string_64.S b/arch/powerpc/lib/string_64.S index 57ace356c949..11e6372537fd 100644 --- a/arch/powerpc/lib/string_64.S +++ b/arch/powerpc/lib/string_64.S @@ -192,7 +192,7 @@ err1; std r0,8(r3) mtctr r6 mr r8,r3 14: -err1; dcbz r0,r3 +err1; dcbz 0,r3 add r3,r3,r9 bdnz 14b diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 5f844337de21..1e93dbc88e80 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -62,6 +62,7 @@ #endif unsigned long long memory_limit; +bool init_mem_is_free; #ifdef CONFIG_HIGHMEM pte_t *kmap_pte; @@ -396,6 +397,7 @@ void __init mem_init(void) void free_initmem(void) { ppc_md.progress = ppc_printk_progress; + init_mem_is_free = true; free_initmem_default(POISON_FREE_INITMEM); } diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 0ef83c274019..9cad2ed812ab 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1540,13 +1540,6 @@ static void reset_topology_timer(void) #ifdef CONFIG_SMP -static void stage_topology_update(int core_id) -{ - cpumask_or(&cpu_associativity_changes_mask, - &cpu_associativity_changes_mask, cpu_sibling_mask(core_id)); - reset_topology_timer(); -} - static int dt_update_callback(struct notifier_block *nb, unsigned long action, void *data) { @@ -1559,7 +1552,7 @@ static int dt_update_callback(struct notifier_block *nb, !of_prop_cmp(update->prop->name, "ibm,associativity")) { u32 core_id; of_property_read_u32(update->dn, "reg", &core_id); - stage_topology_update(core_id); + rc = dlpar_cpu_readd(core_id); rc = NOTIFY_OK; } break; diff --git a/arch/powerpc/mm/tlb_low_64e.S b/arch/powerpc/mm/tlb_low_64e.S index eb82d787d99a..b7e9c09dfe19 100644 --- a/arch/powerpc/mm/tlb_low_64e.S +++ b/arch/powerpc/mm/tlb_low_64e.S @@ -69,6 +69,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV) std r15,EX_TLB_R15(r12) std r10,EX_TLB_CR(r12) #ifdef CONFIG_PPC_FSL_BOOK3E +START_BTB_FLUSH_SECTION + mfspr r11, SPRN_SRR1 + andi. r10,r11,MSR_PR + beq 1f + BTB_FLUSH(r10) +1: +END_BTB_FLUSH_SECTION std r7,EX_TLB_R7(r12) #endif TLB_MISS_PROLOG_STATS diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index 89f70073dec8..7b1d1721a26a 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -51,6 +51,8 @@ #define PPC_LIS(r, i) PPC_ADDIS(r, 0, i) #define PPC_STD(r, base, i) EMIT(PPC_INST_STD | ___PPC_RS(r) | \ ___PPC_RA(base) | ((i) & 0xfffc)) +#define PPC_STDX(r, base, b) EMIT(PPC_INST_STDX | ___PPC_RS(r) | \ + ___PPC_RA(base) | ___PPC_RB(b)) #define PPC_STDU(r, base, i) EMIT(PPC_INST_STDU | ___PPC_RS(r) | \ ___PPC_RA(base) | ((i) & 0xfffc)) #define PPC_STW(r, base, i) EMIT(PPC_INST_STW | ___PPC_RS(r) | \ @@ -65,7 +67,9 @@ #define PPC_LBZ(r, base, i) EMIT(PPC_INST_LBZ | ___PPC_RT(r) | \ ___PPC_RA(base) | IMM_L(i)) #define PPC_LD(r, base, i) EMIT(PPC_INST_LD | ___PPC_RT(r) | \ - ___PPC_RA(base) | IMM_L(i)) + ___PPC_RA(base) | ((i) & 0xfffc)) +#define PPC_LDX(r, base, b) EMIT(PPC_INST_LDX | ___PPC_RT(r) | \ + ___PPC_RA(base) | ___PPC_RB(b)) #define PPC_LWZ(r, base, i) EMIT(PPC_INST_LWZ | ___PPC_RT(r) | \ ___PPC_RA(base) | IMM_L(i)) #define PPC_LHZ(r, base, i) EMIT(PPC_INST_LHZ | ___PPC_RT(r) | \ @@ -85,17 +89,6 @@ ___PPC_RA(a) | ___PPC_RB(b)) #define PPC_BPF_STDCX(s, a, b) EMIT(PPC_INST_STDCX | ___PPC_RS(s) | \ ___PPC_RA(a) | ___PPC_RB(b)) - -#ifdef CONFIG_PPC64 -#define PPC_BPF_LL(r, base, i) do { PPC_LD(r, base, i); } while(0) -#define PPC_BPF_STL(r, base, i) do { PPC_STD(r, base, i); } while(0) -#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0) -#else -#define PPC_BPF_LL(r, base, i) do { PPC_LWZ(r, base, i); } while(0) -#define PPC_BPF_STL(r, base, i) do { PPC_STW(r, base, i); } while(0) -#define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0) -#endif - #define PPC_CMPWI(a, i) EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i)) #define PPC_CMPDI(a, i) EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i)) #define PPC_CMPW(a, b) EMIT(PPC_INST_CMPW | ___PPC_RA(a) | \ diff --git a/arch/powerpc/net/bpf_jit32.h b/arch/powerpc/net/bpf_jit32.h index a8cd7e289ecd..81a9045d8410 100644 --- a/arch/powerpc/net/bpf_jit32.h +++ b/arch/powerpc/net/bpf_jit32.h @@ -122,6 +122,10 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); #define PPC_NTOHS_OFFS(r, base, i) PPC_LHZ_OFFS(r, base, i) #endif +#define PPC_BPF_LL(r, base, i) do { PPC_LWZ(r, base, i); } while(0) +#define PPC_BPF_STL(r, base, i) do { PPC_STW(r, base, i); } while(0) +#define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0) + #define SEEN_DATAREF 0x10000 /* might call external helpers */ #define SEEN_XREG 0x20000 /* X reg is used */ #define SEEN_MEM 0x40000 /* SEEN_MEM+(1<<n) = use mem[n] for temporary diff --git a/arch/powerpc/net/bpf_jit64.h b/arch/powerpc/net/bpf_jit64.h index 62fa7589db2b..bb944b6018d7 100644 --- a/arch/powerpc/net/bpf_jit64.h +++ b/arch/powerpc/net/bpf_jit64.h @@ -86,6 +86,26 @@ DECLARE_LOAD_FUNC(sk_load_byte); (imm >= SKF_LL_OFF ? func##_negative_offset : func) : \ func##_positive_offset) +/* + * WARNING: These can use TMP_REG_2 if the offset is not at word boundary, + * so ensure that it isn't in use already. + */ +#define PPC_BPF_LL(r, base, i) do { \ + if ((i) % 4) { \ + PPC_LI(b2p[TMP_REG_2], (i)); \ + PPC_LDX(r, base, b2p[TMP_REG_2]); \ + } else \ + PPC_LD(r, base, i); \ + } while(0) +#define PPC_BPF_STL(r, base, i) do { \ + if ((i) % 4) { \ + PPC_LI(b2p[TMP_REG_2], (i)); \ + PPC_STDX(r, base, b2p[TMP_REG_2]); \ + } else \ + PPC_STD(r, base, i); \ + } while(0) +#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0) + #define SEEN_FUNC 0x1000 /* might call external helpers */ #define SEEN_STACK 0x2000 /* uses BPF stack */ #define SEEN_SKB 0x4000 /* uses sk_buff */ diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index bdbbc320b006..e7d78f9156ce 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -265,7 +265,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 * if (tail_call_cnt > MAX_TAIL_CALL_CNT) * goto out; */ - PPC_LD(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)); + PPC_BPF_LL(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)); PPC_CMPLWI(b2p[TMP_REG_1], MAX_TAIL_CALL_CNT); PPC_BCC(COND_GT, out); @@ -278,7 +278,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 /* prog = array->ptrs[index]; */ PPC_MULI(b2p[TMP_REG_1], b2p_index, 8); PPC_ADD(b2p[TMP_REG_1], b2p[TMP_REG_1], b2p_bpf_array); - PPC_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs)); + PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs)); /* * if (prog == NULL) @@ -288,7 +288,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 PPC_BCC(COND_EQ, out); /* goto *(prog->bpf_func + prologue_size); */ - PPC_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func)); + PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func)); #ifdef PPC64_ELF_ABI_v1 /* skip past the function descriptor */ PPC_ADDI(b2p[TMP_REG_1], b2p[TMP_REG_1], @@ -620,7 +620,7 @@ bpf_alu32_trunc: * the instructions generated will remain the * same across all passes */ - PPC_STD(dst_reg, 1, bpf_jit_stack_local(ctx)); + PPC_BPF_STL(dst_reg, 1, bpf_jit_stack_local(ctx)); PPC_ADDI(b2p[TMP_REG_1], 1, bpf_jit_stack_local(ctx)); PPC_LDBRX(dst_reg, 0, b2p[TMP_REG_1]); break; @@ -676,7 +676,7 @@ emit_clear: PPC_LI32(b2p[TMP_REG_1], imm); src_reg = b2p[TMP_REG_1]; } - PPC_STD(src_reg, dst_reg, off); + PPC_BPF_STL(src_reg, dst_reg, off); break; /* @@ -723,7 +723,7 @@ emit_clear: break; /* dst = *(u64 *)(ul) (src + off) */ case BPF_LDX | BPF_MEM | BPF_DW: - PPC_LD(dst_reg, src_reg, off); + PPC_BPF_LL(dst_reg, src_reg, off); break; /* diff --git a/arch/powerpc/platforms/83xx/suspend-asm.S b/arch/powerpc/platforms/83xx/suspend-asm.S index 3d1ecd211776..8137f77abad5 100644 --- a/arch/powerpc/platforms/83xx/suspend-asm.S +++ b/arch/powerpc/platforms/83xx/suspend-asm.S @@ -26,13 +26,13 @@ #define SS_MSR 0x74 #define SS_SDR1 0x78 #define SS_LR 0x7c -#define SS_SPRG 0x80 /* 4 SPRGs */ -#define SS_DBAT 0x90 /* 8 DBATs */ -#define SS_IBAT 0xd0 /* 8 IBATs */ -#define SS_TB 0x110 -#define SS_CR 0x118 -#define SS_GPREG 0x11c /* r12-r31 */ -#define STATE_SAVE_SIZE 0x16c +#define SS_SPRG 0x80 /* 8 SPRGs */ +#define SS_DBAT 0xa0 /* 8 DBATs */ +#define SS_IBAT 0xe0 /* 8 IBATs */ +#define SS_TB 0x120 +#define SS_CR 0x128 +#define SS_GPREG 0x12c /* r12-r31 */ +#define STATE_SAVE_SIZE 0x17c .section .data .align 5 @@ -103,6 +103,16 @@ _GLOBAL(mpc83xx_enter_deep_sleep) stw r7, SS_SPRG+12(r3) stw r8, SS_SDR1(r3) + mfspr r4, SPRN_SPRG4 + mfspr r5, SPRN_SPRG5 + mfspr r6, SPRN_SPRG6 + mfspr r7, SPRN_SPRG7 + + stw r4, SS_SPRG+16(r3) + stw r5, SS_SPRG+20(r3) + stw r6, SS_SPRG+24(r3) + stw r7, SS_SPRG+28(r3) + mfspr r4, SPRN_DBAT0U mfspr r5, SPRN_DBAT0L mfspr r6, SPRN_DBAT1U @@ -493,6 +503,16 @@ mpc83xx_deep_resume: mtspr SPRN_IBAT7U, r6 mtspr SPRN_IBAT7L, r7 + lwz r4, SS_SPRG+16(r3) + lwz r5, SS_SPRG+20(r3) + lwz r6, SS_SPRG+24(r3) + lwz r7, SS_SPRG+28(r3) + + mtspr SPRN_SPRG4, r4 + mtspr SPRN_SPRG5, r5 + mtspr SPRN_SPRG6, r6 + mtspr SPRN_SPRG7, r7 + lwz r4, SS_SPRG+0(r3) lwz r5, SS_SPRG+4(r3) lwz r6, SS_SPRG+8(r3) diff --git a/arch/powerpc/platforms/embedded6xx/wii.c b/arch/powerpc/platforms/embedded6xx/wii.c index 3fd683e40bc9..2914529c0695 100644 --- a/arch/powerpc/platforms/embedded6xx/wii.c +++ b/arch/powerpc/platforms/embedded6xx/wii.c @@ -104,6 +104,10 @@ unsigned long __init wii_mmu_mapin_mem2(unsigned long top) /* MEM2 64MB@0x10000000 */ delta = wii_hole_start + wii_hole_size; size = top - delta; + + if (__map_without_bats) + return delta; + for (bl = 128<<10; bl < max_size; bl <<= 1) { if (bl * 2 > size) break; diff --git a/arch/powerpc/platforms/powernv/opal-msglog.c b/arch/powerpc/platforms/powernv/opal-msglog.c index 39d6ff9e5630..d10bad14097b 100644 --- a/arch/powerpc/platforms/powernv/opal-msglog.c +++ b/arch/powerpc/platforms/powernv/opal-msglog.c @@ -98,7 +98,7 @@ static ssize_t opal_msglog_read(struct file *file, struct kobject *kobj, } static struct bin_attribute opal_msglog_attr = { - .attr = {.name = "msglog", .mode = 0444}, + .attr = {.name = "msglog", .mode = 0400}, .read = opal_msglog_read }; diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 17203abf38e8..365e2b620201 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -77,6 +77,12 @@ static void init_fw_feat_flags(struct device_node *np) if (fw_feature_is("enabled", "fw-count-cache-disabled", np)) security_ftr_set(SEC_FTR_COUNT_CACHE_DISABLED); + if (fw_feature_is("enabled", "fw-count-cache-flush-bcctr2,0,0", np)) + security_ftr_set(SEC_FTR_BCCTR_FLUSH_ASSIST); + + if (fw_feature_is("enabled", "needs-count-cache-flush-on-context-switch", np)) + security_ftr_set(SEC_FTR_FLUSH_COUNT_CACHE); + /* * The features below are enabled by default, so we instead look to see * if firmware has *disabled* them, and clear them if so. @@ -123,6 +129,7 @@ static void pnv_setup_rfi_flush(void) security_ftr_enabled(SEC_FTR_L1D_FLUSH_HV)); setup_rfi_flush(type, enable); + setup_count_cache_flush(); } static void __init pnv_setup_arch(void) diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index a1b63e00b2f7..7a2beedb9740 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -785,6 +785,25 @@ static int dlpar_cpu_add_by_count(u32 cpus_to_add) return rc; } +int dlpar_cpu_readd(int cpu) +{ + struct device_node *dn; + struct device *dev; + u32 drc_index; + int rc; + + dev = get_cpu_device(cpu); + dn = dev->of_node; + + rc = of_property_read_u32(dn, "ibm,my-drc-index", &drc_index); + + rc = dlpar_cpu_remove_by_index(drc_index); + if (!rc) + rc = dlpar_cpu_add(drc_index); + + return rc; +} + int dlpar_cpu(struct pseries_hp_errorlog *hp_elog) { u32 count, drc_index; diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 91ade7755823..adb09ab87f7c 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -475,6 +475,12 @@ static void init_cpu_char_feature_flags(struct h_cpu_char_result *result) if (result->character & H_CPU_CHAR_COUNT_CACHE_DISABLED) security_ftr_set(SEC_FTR_COUNT_CACHE_DISABLED); + if (result->character & H_CPU_CHAR_BCCTR_FLUSH_ASSIST) + security_ftr_set(SEC_FTR_BCCTR_FLUSH_ASSIST); + + if (result->behaviour & H_CPU_BEHAV_FLUSH_COUNT_CACHE) + security_ftr_set(SEC_FTR_FLUSH_COUNT_CACHE); + /* * The features below are enabled by default, so we instead look to see * if firmware has *disabled* them, and clear them if so. @@ -525,6 +531,7 @@ void pseries_setup_rfi_flush(void) security_ftr_enabled(SEC_FTR_L1D_FLUSH_PR); setup_rfi_flush(types, enable); + setup_count_cache_flush(); } static void __init pSeries_setup_arch(void) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 4eb6b79c2aa2..9673f7c29629 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2055,14 +2055,8 @@ config RANDOMIZE_MEMORY_PHYSICAL_PADDING If unsure, leave at the default value. config HOTPLUG_CPU - bool "Support for hot-pluggable CPUs" + def_bool y depends on SMP - ---help--- - Say Y here to allow turning CPUs off and on. CPUs can be - controlled through /sys/devices/system/cpu. - ( Note: power management support will enable this option - automatically on SMP systems. ) - Say N if you want to disable CPU hotplug. config BOOTPARAM_HOTPLUG_CPU0 bool "Set default setting of cpu0_hotpluggable" diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index 3b7156f46bc1..3b16935b22bc 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -100,7 +100,7 @@ $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE AFLAGS_header.o += -I$(objtree)/$(obj) $(obj)/header.o: $(obj)/zoffset.h -LDFLAGS_setup.elf := -T +LDFLAGS_setup.elf := -m elf_i386 -T $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE $(call if_changed,ld) diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile index d5409660f5de..756dc9432d15 100644 --- a/arch/x86/entry/vdso/Makefile +++ b/arch/x86/entry/vdso/Makefile @@ -47,10 +47,8 @@ targets += $(vdso_img_sodbg) export CPPFLAGS_vdso.lds += -P -C -VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \ - -Wl,--no-undefined \ - -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 \ - $(DISABLE_LTO) +VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -soname linux-vdso.so.1 --no-undefined \ + -z max-page-size=4096 $(obj)/vdso64.so.dbg: $(src)/vdso.lds $(vobjs) FORCE $(call if_changed,vdso) @@ -96,10 +94,8 @@ CFLAGS_REMOVE_vvar.o = -pg # CPPFLAGS_vdsox32.lds = $(CPPFLAGS_vdso.lds) -VDSO_LDFLAGS_vdsox32.lds = -Wl,-m,elf32_x86_64 \ - -Wl,-soname=linux-vdso.so.1 \ - -Wl,-z,max-page-size=4096 \ - -Wl,-z,common-page-size=4096 +VDSO_LDFLAGS_vdsox32.lds = -m elf32_x86_64 -soname linux-vdso.so.1 \ + -z max-page-size=4096 # 64-bit objects to re-brand as x32 vobjs64-for-x32 := $(filter-out $(vobjs-nox32),$(vobjs-y)) @@ -127,7 +123,7 @@ $(obj)/vdsox32.so.dbg: $(src)/vdsox32.lds $(vobjx32s) FORCE $(call if_changed,vdso) CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds) -VDSO_LDFLAGS_vdso32.lds = -m32 -Wl,-m,elf_i386 -Wl,-soname=linux-gate.so.1 +VDSO_LDFLAGS_vdso32.lds = -m elf_i386 -soname linux-gate.so.1 # This makes sure the $(obj) subdirectory exists even though vdso32/ # is not a kbuild sub-make subdirectory. @@ -165,13 +161,13 @@ $(obj)/vdso32.so.dbg: FORCE \ # The DSO images are built using a special linker script. # quiet_cmd_vdso = VDSO $@ - cmd_vdso = $(CC) -nostdlib -o $@ \ + cmd_vdso = $(LD) -nostdlib -o $@ \ $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \ - -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \ + -T $(filter %.lds,$^) $(filter %.o,$^) && \ sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' -VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=both) \ - $(call cc-ldoption, -Wl$(comma)--build-id) -Wl,-Bsymbolic $(LTO_CFLAGS) +VDSO_LDFLAGS = -shared $(call ld-option, --hash-style=both) \ + $(call ld-option, --build-id) -Bsymbolic GCOV_PROFILE := n # diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h index 1ce6ae35f6a2..c42c9d50c8ee 100644 --- a/arch/x86/events/perf_event.h +++ b/arch/x86/events/perf_event.h @@ -996,12 +996,12 @@ static inline int intel_pmu_init(void) return 0; } -static inline int intel_cpuc_prepare(struct cpu_hw_event *cpuc, int cpu) +static inline int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu) { return 0; } -static inline void intel_cpuc_finish(struct cpu_hw_event *cpuc) +static inline void intel_cpuc_finish(struct cpu_hw_events *cpuc) { } diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 9a8167b175d5..83b5b2990b49 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -487,6 +487,7 @@ struct kvm_vcpu_arch { bool tpr_access_reporting; u64 ia32_xss; u64 microcode_version; + u64 arch_capabilities; /* * Paging state of the vcpu diff --git a/arch/x86/include/asm/suspend_32.h b/arch/x86/include/asm/suspend_32.h index 8e9dbe7b73a1..5cc2ce4ab8a3 100644 --- a/arch/x86/include/asm/suspend_32.h +++ b/arch/x86/include/asm/suspend_32.h @@ -11,7 +11,13 @@ /* image of the saved processor state */ struct saved_context { - u16 es, fs, gs, ss; + /* + * On x86_32, all segment registers, with the possible exception of + * gs, are saved at kernel entry in pt_regs. + */ +#ifdef CONFIG_X86_32_LAZY_GS + u16 gs; +#endif unsigned long cr0, cr2, cr3, cr4; u64 misc_enable; bool misc_enable_saved; diff --git a/arch/x86/include/asm/suspend_64.h b/arch/x86/include/asm/suspend_64.h index 2bd96b4df140..701751918921 100644 --- a/arch/x86/include/asm/suspend_64.h +++ b/arch/x86/include/asm/suspend_64.h @@ -19,8 +19,20 @@ */ struct saved_context { struct pt_regs regs; - u16 ds, es, fs, gs, ss; - unsigned long gs_base, gs_kernel_base, fs_base; + + /* + * User CS and SS are saved in current_pt_regs(). The rest of the + * segment selectors need to be saved and restored here. + */ + u16 ds, es, fs, gs; + + /* + * Usermode FSBASE and GSBASE may not match the fs and gs selectors, + * so we save them separately. We save the kernelmode GSBASE to + * restore percpu access after resume. + */ + unsigned long kernelmode_gs_base, usermode_gs_base, fs_base; + unsigned long cr0, cr2, cr3, cr4, cr8; u64 misc_enable; bool misc_enable_saved; @@ -29,8 +41,7 @@ struct saved_context { u16 gdt_pad; /* Unused */ struct desc_ptr gdt_desc; u16 idt_pad; - u16 idt_limit; - unsigned long idt_base; + struct desc_ptr idt; u16 ldt; u16 tss; unsigned long tr; diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h index ccdc23d89b60..9f694537a103 100644 --- a/arch/x86/include/asm/xen/hypercall.h +++ b/arch/x86/include/asm/xen/hypercall.h @@ -216,6 +216,9 @@ privcmd_call(unsigned call, __HYPERCALL_DECLS; __HYPERCALL_5ARG(a1, a2, a3, a4, a5); + if (call >= PAGE_SIZE / sizeof(hypercall_page[0])) + return -EINVAL; + stac(); asm volatile(CALL_NOSPEC : __HYPERCALL_5PARAM diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c index d39cfb2c6b63..311d0fad17e6 100644 --- a/arch/x86/kernel/cpu/cyrix.c +++ b/arch/x86/kernel/cpu/cyrix.c @@ -121,7 +121,7 @@ static void set_cx86_reorder(void) setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ /* Load/Store Serialize to mem access disable (=reorder it) */ - setCx86_old(CX86_PCR0, getCx86_old(CX86_PCR0) & ~0x80); + setCx86(CX86_PCR0, getCx86(CX86_PCR0) & ~0x80); /* set load/store serialize from 1GB to 4GB */ ccr3 |= 0xe0; setCx86(CX86_CCR3, ccr3); @@ -132,11 +132,11 @@ static void set_cx86_memwb(void) pr_info("Enable Memory-Write-back mode on Cyrix/NSC processor.\n"); /* CCR2 bit 2: unlock NW bit */ - setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) & ~0x04); + setCx86(CX86_CCR2, getCx86(CX86_CCR2) & ~0x04); /* set 'Not Write-through' */ write_cr0(read_cr0() | X86_CR0_NW); /* CCR2 bit 2: lock NW bit and set WT1 */ - setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) | 0x14); + setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14); } /* @@ -150,14 +150,14 @@ static void geode_configure(void) local_irq_save(flags); /* Suspend on halt power saving and enable #SUSP pin */ - setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) | 0x88); + setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88); ccr3 = getCx86(CX86_CCR3); setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ /* FPU fast, DTE cache, Mem bypass */ - setCx86_old(CX86_CCR4, getCx86_old(CX86_CCR4) | 0x38); + setCx86(CX86_CCR4, getCx86(CX86_CCR4) | 0x38); setCx86(CX86_CCR3, ccr3); /* disable MAPEN */ set_cx86_memwb(); @@ -293,7 +293,7 @@ static void init_cyrix(struct cpuinfo_x86 *c) /* GXm supports extended cpuid levels 'ala' AMD */ if (c->cpuid_level == 2) { /* Enable cxMMX extensions (GX1 Datasheet 54) */ - setCx86_old(CX86_CCR7, getCx86_old(CX86_CCR7) | 1); + setCx86(CX86_CCR7, getCx86(CX86_CCR7) | 1); /* * GXm : 0x30 ... 0x5f GXm datasheet 51 @@ -316,7 +316,7 @@ static void init_cyrix(struct cpuinfo_x86 *c) if (dir1 > 7) { dir0_msn++; /* M II */ /* Enable MMX extensions (App note 108) */ - setCx86_old(CX86_CCR7, getCx86_old(CX86_CCR7)|1); + setCx86(CX86_CCR7, getCx86(CX86_CCR7)|1); } else { /* A 6x86MX - it has the bug. */ set_cpu_bug(c, X86_BUG_COMA); diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index 756634f14df6..775c23d4021a 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -914,6 +914,8 @@ int __init hpet_enable(void) return 0; hpet_set_mapping(); + if (!hpet_virt_address) + return 0; /* * Read the period and check for a sane value: diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c index 8771766d46b6..9954a604a822 100644 --- a/arch/x86/kernel/hw_breakpoint.c +++ b/arch/x86/kernel/hw_breakpoint.c @@ -352,6 +352,7 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp) #endif default: WARN_ON_ONCE(1); + return -EINVAL; } /* diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index e783a5daaab2..55f04875293f 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -367,7 +367,7 @@ SECTIONS * Per-cpu symbols which need to be offset from __per_cpu_load * for the boot processor. */ -#define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load +#define INIT_PER_CPU(x) init_per_cpu__##x = ABSOLUTE(x) + __per_cpu_load INIT_PER_CPU(gdt_page); INIT_PER_CPU(irq_stack_union); diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 1870fa7387b7..75466d9417b8 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -714,7 +714,6 @@ struct vcpu_vmx { u64 msr_guest_kernel_gs_base; #endif - u64 arch_capabilities; u64 spec_ctrl; u32 vm_entry_controls_shadow; @@ -3209,12 +3208,6 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) msr_info->data = to_vmx(vcpu)->spec_ctrl; break; - case MSR_IA32_ARCH_CAPABILITIES: - if (!msr_info->host_initiated && - !guest_cpuid_has_arch_capabilities(vcpu)) - return 1; - msr_info->data = to_vmx(vcpu)->arch_capabilities; - break; case MSR_IA32_SYSENTER_CS: msr_info->data = vmcs_read32(GUEST_SYSENTER_CS); break; @@ -3376,11 +3369,6 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) vmx_disable_intercept_for_msr(vmx->vmcs01.msr_bitmap, MSR_IA32_PRED_CMD, MSR_TYPE_W); break; - case MSR_IA32_ARCH_CAPABILITIES: - if (!msr_info->host_initiated) - return 1; - vmx->arch_capabilities = data; - break; case MSR_IA32_CR_PAT: if (vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_PAT) { if (!kvm_mtrr_valid(vcpu, MSR_IA32_CR_PAT, data)) @@ -5468,8 +5456,6 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx) ++vmx->nmsrs; } - vmx->arch_capabilities = kvm_get_arch_capabilities(); - vm_exit_controls_init(vmx, vmcs_config.vmexit_ctrl); /* 22.2.1, 20.8.1 */ @@ -5965,6 +5951,7 @@ static int handle_external_interrupt(struct kvm_vcpu *vcpu) static int handle_triple_fault(struct kvm_vcpu *vcpu) { vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN; + vcpu->mmio_needed = 0; return 0; } @@ -7046,6 +7033,10 @@ static int get_vmx_mem_address(struct kvm_vcpu *vcpu, /* Addr = segment_base + offset */ /* offset = base + [index * scale] + displacement */ off = exit_qualification; /* holds the displacement */ + if (addr_size == 1) + off = (gva_t)sign_extend64(off, 31); + else if (addr_size == 0) + off = (gva_t)sign_extend64(off, 15); if (base_is_valid) off += kvm_register_read(vcpu, base_reg); if (index_is_valid) @@ -7088,10 +7079,16 @@ static int get_vmx_mem_address(struct kvm_vcpu *vcpu, /* Protected mode: #GP(0)/#SS(0) if the segment is unusable. */ exn = (s.unusable != 0); - /* Protected mode: #GP(0)/#SS(0) if the memory - * operand is outside the segment limit. + + /* + * Protected mode: #GP(0)/#SS(0) if the memory operand is + * outside the segment limit. All CPUs that support VMX ignore + * limit checks for flat segments, i.e. segments with base==0, + * limit==0xffffffff and of type expand-up data or code. */ - exn = exn || (off + sizeof(u64) > s.limit); + if (!(s.base == 0 && s.limit == 0xffffffff && + ((s.type & 8) || !(s.type & 4)))) + exn = exn || (off + sizeof(u64) > s.limit); } if (exn) { kvm_queue_exception_e(vcpu, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 5b760fbdddd1..d6b791fa5fbe 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2197,6 +2197,11 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) if (msr_info->host_initiated) vcpu->arch.microcode_version = data; break; + case MSR_IA32_ARCH_CAPABILITIES: + if (!msr_info->host_initiated) + return 1; + vcpu->arch.arch_capabilities = data; + break; case MSR_EFER: return set_efer(vcpu, data); case MSR_K7_HWCR: @@ -2473,6 +2478,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_IA32_UCODE_REV: msr_info->data = vcpu->arch.microcode_version; break; + case MSR_IA32_ARCH_CAPABILITIES: + if (!msr_info->host_initiated && + !guest_cpuid_has_arch_capabilities(vcpu)) + return 1; + msr_info->data = vcpu->arch.arch_capabilities; + break; case MSR_MTRRcap: case 0x200 ... 0x2ff: return kvm_mtrr_get_msr(vcpu, msr_info->index, &msr_info->data); @@ -6776,6 +6787,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) } if (kvm_check_request(KVM_REQ_TRIPLE_FAULT, vcpu)) { vcpu->run->exit_reason = KVM_EXIT_SHUTDOWN; + vcpu->mmio_needed = 0; r = 0; goto out; } @@ -7678,6 +7690,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { int r; + vcpu->arch.arch_capabilities = kvm_get_arch_capabilities(); kvm_vcpu_mtrr_init(vcpu); r = vcpu_load(vcpu); if (r) diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c index 53cace2ec0e2..054e27671df9 100644 --- a/arch/x86/power/cpu.c +++ b/arch/x86/power/cpu.c @@ -82,12 +82,8 @@ static void __save_processor_state(struct saved_context *ctxt) /* * descriptor tables */ -#ifdef CONFIG_X86_32 store_idt(&ctxt->idt); -#else -/* CONFIG_X86_64 */ - store_idt((struct desc_ptr *)&ctxt->idt_limit); -#endif + /* * We save it here, but restore it only in the hibernate case. * For ACPI S3 resume, this is loaded via 'early_gdt_desc' in 64-bit @@ -103,22 +99,18 @@ static void __save_processor_state(struct saved_context *ctxt) /* * segment registers */ -#ifdef CONFIG_X86_32 - savesegment(es, ctxt->es); - savesegment(fs, ctxt->fs); +#ifdef CONFIG_X86_32_LAZY_GS savesegment(gs, ctxt->gs); - savesegment(ss, ctxt->ss); -#else -/* CONFIG_X86_64 */ - asm volatile ("movw %%ds, %0" : "=m" (ctxt->ds)); - asm volatile ("movw %%es, %0" : "=m" (ctxt->es)); - asm volatile ("movw %%fs, %0" : "=m" (ctxt->fs)); - asm volatile ("movw %%gs, %0" : "=m" (ctxt->gs)); - asm volatile ("movw %%ss, %0" : "=m" (ctxt->ss)); +#endif +#ifdef CONFIG_X86_64 + savesegment(gs, ctxt->gs); + savesegment(fs, ctxt->fs); + savesegment(ds, ctxt->ds); + savesegment(es, ctxt->es); rdmsrl(MSR_FS_BASE, ctxt->fs_base); - rdmsrl(MSR_GS_BASE, ctxt->gs_base); - rdmsrl(MSR_KERNEL_GS_BASE, ctxt->gs_kernel_base); + rdmsrl(MSR_GS_BASE, ctxt->kernelmode_gs_base); + rdmsrl(MSR_KERNEL_GS_BASE, ctxt->usermode_gs_base); mtrr_save_fixed_ranges(NULL); rdmsrl(MSR_EFER, ctxt->efer); @@ -178,6 +170,9 @@ static void fix_processor_context(void) write_gdt_entry(desc, GDT_ENTRY_TSS, &tss, DESC_TSS); syscall_init(); /* This sets MSR_*STAR and related */ +#else + if (boot_cpu_has(X86_FEATURE_SEP)) + enable_sep_cpu(); #endif load_TR_desc(); /* This does ltr */ load_mm_ldt(current->active_mm); /* This does lldt */ @@ -186,9 +181,12 @@ static void fix_processor_context(void) } /** - * __restore_processor_state - restore the contents of CPU registers saved - * by __save_processor_state() - * @ctxt - structure to load the registers contents from + * __restore_processor_state - restore the contents of CPU registers saved + * by __save_processor_state() + * @ctxt - structure to load the registers contents from + * + * The asm code that gets us here will have restored a usable GDT, although + * it will be pointing to the wrong alias. */ static void notrace __restore_processor_state(struct saved_context *ctxt) { @@ -211,46 +209,52 @@ static void notrace __restore_processor_state(struct saved_context *ctxt) write_cr2(ctxt->cr2); write_cr0(ctxt->cr0); + /* Restore the IDT. */ + load_idt(&ctxt->idt); + /* - * now restore the descriptor tables to their proper values - * ltr is done i fix_processor_context(). + * Just in case the asm code got us here with the SS, DS, or ES + * out of sync with the GDT, update them. */ -#ifdef CONFIG_X86_32 - load_idt(&ctxt->idt); + loadsegment(ss, __KERNEL_DS); + loadsegment(ds, __USER_DS); + loadsegment(es, __USER_DS); + + /* + * Restore percpu access. Percpu access can happen in exception + * handlers or in complicated helpers like load_gs_index(). + */ +#ifdef CONFIG_X86_64 + wrmsrl(MSR_GS_BASE, ctxt->kernelmode_gs_base); #else -/* CONFIG_X86_64 */ - load_idt((const struct desc_ptr *)&ctxt->idt_limit); + loadsegment(fs, __KERNEL_PERCPU); + loadsegment(gs, __KERNEL_STACK_CANARY); #endif + /* Restore the TSS, RO GDT, LDT, and usermode-relevant MSRs. */ + fix_processor_context(); + /* - * segment registers + * Now that we have descriptor tables fully restored and working + * exception handling, restore the usermode segments. */ -#ifdef CONFIG_X86_32 +#ifdef CONFIG_X86_64 + loadsegment(ds, ctxt->es); loadsegment(es, ctxt->es); loadsegment(fs, ctxt->fs); - loadsegment(gs, ctxt->gs); - loadsegment(ss, ctxt->ss); + load_gs_index(ctxt->gs); /* - * sysenter MSRs + * Restore FSBASE and GSBASE after restoring the selectors, since + * restoring the selectors clobbers the bases. Keep in mind + * that MSR_KERNEL_GS_BASE is horribly misnamed. */ - if (boot_cpu_has(X86_FEATURE_SEP)) - enable_sep_cpu(); -#else -/* CONFIG_X86_64 */ - asm volatile ("movw %0, %%ds" :: "r" (ctxt->ds)); - asm volatile ("movw %0, %%es" :: "r" (ctxt->es)); - asm volatile ("movw %0, %%fs" :: "r" (ctxt->fs)); - load_gs_index(ctxt->gs); - asm volatile ("movw %0, %%ss" :: "r" (ctxt->ss)); - wrmsrl(MSR_FS_BASE, ctxt->fs_base); - wrmsrl(MSR_GS_BASE, ctxt->gs_base); - wrmsrl(MSR_KERNEL_GS_BASE, ctxt->gs_kernel_base); + wrmsrl(MSR_KERNEL_GS_BASE, ctxt->usermode_gs_base); +#elif defined(CONFIG_X86_32_LAZY_GS) + loadsegment(gs, ctxt->gs); #endif - fix_processor_context(); - do_fpu_end(); x86_platform.restore_sched_clock_state(); mtrr_bp_restore(); diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile index 25012abc3409..ce5f431e6823 100644 --- a/arch/x86/realmode/rm/Makefile +++ b/arch/x86/realmode/rm/Makefile @@ -47,7 +47,7 @@ $(obj)/pasyms.h: $(REALMODE_OBJS) FORCE targets += realmode.lds $(obj)/realmode.lds: $(obj)/pasyms.h -LDFLAGS_realmode.elf := --emit-relocs -T +LDFLAGS_realmode.elf := -m elf_i386 --emit-relocs -T CPPFLAGS_realmode.lds += -P -C -I$(objtree)/$(obj) targets += realmode.elf diff --git a/arch/xtensa/kernel/stacktrace.c b/arch/xtensa/kernel/stacktrace.c index 7538d802b65a..483593068139 100644 --- a/arch/xtensa/kernel/stacktrace.c +++ b/arch/xtensa/kernel/stacktrace.c @@ -272,10 +272,14 @@ static int return_address_cb(struct stackframe *frame, void *data) return 1; } +/* + * level == 0 is for the return address from the caller of this function, + * not from this function itself. + */ unsigned long return_address(unsigned level) { struct return_addr_data r = { - .skip = level + 1, + .skip = level, }; walk_stackframe(stack_pointer(NULL), return_address_cb, &r); return r.addr; diff --git a/block/bio.c b/block/bio.c index 68972e3d3f5c..4c18a68913de 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1214,8 +1214,11 @@ struct bio *bio_copy_user_iov(struct request_queue *q, } } - if (bio_add_pc_page(q, bio, page, bytes, offset) < bytes) + if (bio_add_pc_page(q, bio, page, bytes, offset) < bytes) { + if (!map_data) + __free_page(page); break; + } len -= bytes; offset = 0; diff --git a/crypto/ahash.c b/crypto/ahash.c index 90d73a22f129..9a4e87755a0b 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -85,17 +85,17 @@ static int hash_walk_new_entry(struct crypto_hash_walk *walk) int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err) { unsigned int alignmask = walk->alignmask; - unsigned int nbytes = walk->entrylen; walk->data -= walk->offset; - if (nbytes && walk->offset & alignmask && !err) { - walk->offset = ALIGN(walk->offset, alignmask + 1); - nbytes = min(nbytes, - ((unsigned int)(PAGE_SIZE)) - walk->offset); - walk->entrylen -= nbytes; + if (walk->entrylen && (walk->offset & alignmask) && !err) { + unsigned int nbytes; + walk->offset = ALIGN(walk->offset, alignmask + 1); + nbytes = min(walk->entrylen, + (unsigned int)(PAGE_SIZE - walk->offset)); if (nbytes) { + walk->entrylen -= nbytes; walk->data += walk->offset; return nbytes; } @@ -115,7 +115,7 @@ int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err) if (err) return err; - if (nbytes) { + if (walk->entrylen) { walk->offset = 0; walk->pg++; return hash_walk_next(walk); @@ -189,6 +189,21 @@ static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key, return ret; } +static int ahash_nosetkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int keylen) +{ + return -ENOSYS; +} + +static void ahash_set_needkey(struct crypto_ahash *tfm) +{ + const struct hash_alg_common *alg = crypto_hash_alg_common(tfm); + + if (tfm->setkey != ahash_nosetkey && + !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY)) + crypto_ahash_set_flags(tfm, CRYPTO_TFM_NEED_KEY); +} + int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { @@ -200,20 +215,16 @@ int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key, else err = tfm->setkey(tfm, key, keylen); - if (err) + if (unlikely(err)) { + ahash_set_needkey(tfm); return err; + } crypto_ahash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY); return 0; } EXPORT_SYMBOL_GPL(crypto_ahash_setkey); -static int ahash_nosetkey(struct crypto_ahash *tfm, const u8 *key, - unsigned int keylen) -{ - return -ENOSYS; -} - static inline unsigned int ahash_align_buffer_size(unsigned len, unsigned long mask) { @@ -482,8 +493,7 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm) if (alg->setkey) { hash->setkey = alg->setkey; - if (!(alg->halg.base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY)) - crypto_ahash_set_flags(hash, CRYPTO_TFM_NEED_KEY); + ahash_set_needkey(hash); } if (alg->export) hash->export = alg->export; diff --git a/crypto/pcbc.c b/crypto/pcbc.c index f654965f0933..de81f716cf26 100644 --- a/crypto/pcbc.c +++ b/crypto/pcbc.c @@ -52,7 +52,7 @@ static int crypto_pcbc_encrypt_segment(struct blkcipher_desc *desc, unsigned int nbytes = walk->nbytes; u8 *src = walk->src.virt.addr; u8 *dst = walk->dst.virt.addr; - u8 *iv = walk->iv; + u8 * const iv = walk->iv; do { crypto_xor(iv, src, bsize); @@ -76,7 +76,7 @@ static int crypto_pcbc_encrypt_inplace(struct blkcipher_desc *desc, int bsize = crypto_cipher_blocksize(tfm); unsigned int nbytes = walk->nbytes; u8 *src = walk->src.virt.addr; - u8 *iv = walk->iv; + u8 * const iv = walk->iv; u8 tmpbuf[bsize]; do { @@ -89,8 +89,6 @@ static int crypto_pcbc_encrypt_inplace(struct blkcipher_desc *desc, src += bsize; } while ((nbytes -= bsize) >= bsize); - memcpy(walk->iv, iv, bsize); - return nbytes; } @@ -130,7 +128,7 @@ static int crypto_pcbc_decrypt_segment(struct blkcipher_desc *desc, unsigned int nbytes = walk->nbytes; u8 *src = walk->src.virt.addr; u8 *dst = walk->dst.virt.addr; - u8 *iv = walk->iv; + u8 * const iv = walk->iv; do { fn(crypto_cipher_tfm(tfm), dst, src); @@ -142,8 +140,6 @@ static int crypto_pcbc_decrypt_segment(struct blkcipher_desc *desc, dst += bsize; } while ((nbytes -= bsize) >= bsize); - memcpy(walk->iv, iv, bsize); - return nbytes; } @@ -156,7 +152,7 @@ static int crypto_pcbc_decrypt_inplace(struct blkcipher_desc *desc, int bsize = crypto_cipher_blocksize(tfm); unsigned int nbytes = walk->nbytes; u8 *src = walk->src.virt.addr; - u8 *iv = walk->iv; + u8 * const iv = walk->iv; u8 tmpbuf[bsize]; do { @@ -169,8 +165,6 @@ static int crypto_pcbc_decrypt_inplace(struct blkcipher_desc *desc, src += bsize; } while ((nbytes -= bsize) >= bsize); - memcpy(walk->iv, iv, bsize); - return nbytes; } diff --git a/crypto/shash.c b/crypto/shash.c index 4f047c7eeca7..a1c7609578ea 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -52,6 +52,13 @@ static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key, return err; } +static void shash_set_needkey(struct crypto_shash *tfm, struct shash_alg *alg) +{ + if (crypto_shash_alg_has_setkey(alg) && + !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY)) + crypto_shash_set_flags(tfm, CRYPTO_TFM_NEED_KEY); +} + int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key, unsigned int keylen) { @@ -64,8 +71,10 @@ int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key, else err = shash->setkey(tfm, key, keylen); - if (err) + if (unlikely(err)) { + shash_set_needkey(tfm, shash); return err; + } crypto_shash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY); return 0; @@ -367,7 +376,8 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm) crt->final = shash_async_final; crt->finup = shash_async_finup; crt->digest = shash_async_digest; - crt->setkey = shash_async_setkey; + if (crypto_shash_alg_has_setkey(alg)) + crt->setkey = shash_async_setkey; crypto_ahash_set_flags(crt, crypto_shash_get_flags(shash) & CRYPTO_TFM_NEED_KEY); @@ -389,9 +399,7 @@ static int crypto_shash_init_tfm(struct crypto_tfm *tfm) hash->descsize = alg->descsize; - if (crypto_shash_alg_has_setkey(alg) && - !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY)) - crypto_shash_set_flags(hash, CRYPTO_TFM_NEED_KEY); + shash_set_needkey(hash, alg); return 0; } diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 667dc5c86fef..ea0573176894 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -2069,21 +2069,29 @@ static int __init intel_opregion_present(void) return opregion; } +/* Check if the chassis-type indicates there is no builtin LCD panel */ static bool dmi_is_desktop(void) { const char *chassis_type; + unsigned long type; chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); if (!chassis_type) return false; - if (!strcmp(chassis_type, "3") || /* 3: Desktop */ - !strcmp(chassis_type, "4") || /* 4: Low Profile Desktop */ - !strcmp(chassis_type, "5") || /* 5: Pizza Box */ - !strcmp(chassis_type, "6") || /* 6: Mini Tower */ - !strcmp(chassis_type, "7") || /* 7: Tower */ - !strcmp(chassis_type, "11")) /* 11: Main Server Chassis */ + if (kstrtoul(chassis_type, 10, &type) != 0) + return false; + + switch (type) { + case 0x03: /* Desktop */ + case 0x04: /* Low Profile Desktop */ + case 0x05: /* Pizza Box */ + case 0x06: /* Mini Tower */ + case 0x07: /* Tower */ + case 0x10: /* Lunch Box */ + case 0x11: /* Main Server Chassis */ return true; + } return false; } diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c index 201c7ceb7052..98b513d049f6 100644 --- a/drivers/acpi/device_sysfs.c +++ b/drivers/acpi/device_sysfs.c @@ -202,11 +202,15 @@ static int create_of_modalias(struct acpi_device *acpi_dev, char *modalias, { struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER }; const union acpi_object *of_compatible, *obj; + acpi_status status; int len, count; int i, nval; char *c; - acpi_get_name(acpi_dev->handle, ACPI_SINGLE_NAME, &buf); + status = acpi_get_name(acpi_dev->handle, ACPI_SINGLE_NAME, &buf); + if (ACPI_FAILURE(status)) + return -ENODEV; + /* DT strings are all in lower case */ for (c = buf.pointer; *c != '\0'; c++) *c = tolower(*c); diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 06cf7427d0c4..31a07609f7a2 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -307,6 +307,13 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, return -EINVAL; } + if (out_obj->type != ACPI_TYPE_BUFFER) { + dev_dbg(dev, "%s unexpected output object type cmd: %s type: %d\n", + dimm_name, cmd_name, out_obj->type); + rc = -EINVAL; + goto out; + } + if (call_pkg) { call_pkg->nd_fw_size = out_obj->buffer.length; memcpy(call_pkg->nd_payload + call_pkg->nd_size_in, @@ -325,13 +332,6 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, return 0; } - if (out_obj->package.type != ACPI_TYPE_BUFFER) { - dev_dbg(dev, "%s:%s unexpected output object type cmd: %s type: %d\n", - __func__, dimm_name, cmd_name, out_obj->type); - rc = -EINVAL; - goto out; - } - if (IS_ENABLED(CONFIG_ACPI_NFIT_DEBUG)) { dev_dbg(dev, "%s:%s cmd: %s output length: %d\n", __func__, dimm_name, cmd_name, out_obj->buffer.length); diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index ad0b13ad4bbb..4a76000bcf7a 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -443,9 +443,13 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs) /* * The spec requires that bit 4 always be 1. If it's not set, assume - * that the implementation doesn't support an SBS charger + * that the implementation doesn't support an SBS charger. + * + * And on some MacBooks a status of 0xffff is always returned, no + * matter whether the charger is plugged in or not, which is also + * wrong, so ignore the SBS charger for those too. */ - if (!((status >> 4) & 0x1)) + if (!((status >> 4) & 0x1) || status == 0xffff) return -ENODEV; sbs->charger_present = (status >> 15) & 0x1; diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c index f98121f11f7c..9f51a167bf4e 100644 --- a/drivers/base/power/wakeup.c +++ b/drivers/base/power/wakeup.c @@ -113,7 +113,6 @@ void wakeup_source_drop(struct wakeup_source *ws) if (!ws) return; - del_timer_sync(&ws->timer); __pm_relax(ws); } EXPORT_SYMBOL_GPL(wakeup_source_drop); @@ -201,6 +200,13 @@ void wakeup_source_remove(struct wakeup_source *ws) list_del_rcu(&ws->entry); spin_unlock_irqrestore(&events_lock, flags); synchronize_srcu(&wakeup_srcu); + + del_timer_sync(&ws->timer); + /* + * Clear timer.function to make wakeup_source_not_registered() treat + * this wakeup source as not registered. + */ + ws->timer.function = NULL; } EXPORT_SYMBOL_GPL(wakeup_source_remove); diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 326b9ba4518e..6914c6e1e1a8 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3752,7 +3752,7 @@ static unsigned int floppy_check_events(struct gendisk *disk, if (time_after(jiffies, UDRS->last_checked + UDP->checkfreq)) { if (lock_fdc(drive)) - return -EINTR; + return 0; poll_drive(false, 0); process_fd_request(); } diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index ff4280800cd0..a46f188f679e 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -265,6 +265,7 @@ /* #define ERRLOGMASK (CD_WARNING|CD_OPEN|CD_COUNT_TRACKS|CD_CLOSE) */ /* #define ERRLOGMASK (CD_WARNING|CD_REG_UNREG|CD_DO_IOCTL|CD_OPEN|CD_CLOSE|CD_COUNT_TRACKS) */ +#include <linux/atomic.h> #include <linux/module.h> #include <linux/fs.h> #include <linux/major.h> @@ -3683,9 +3684,9 @@ static struct ctl_table_header *cdrom_sysctl_header; static void cdrom_sysctl_register(void) { - static int initialized; + static atomic_t initialized = ATOMIC_INIT(0); - if (initialized == 1) + if (!atomic_add_unless(&initialized, 1, 1)) return; cdrom_sysctl_header = register_sysctl_table(cdrom_root_table); @@ -3696,8 +3697,6 @@ static void cdrom_sysctl_register(void) cdrom_sysctl_settings.debug = debug; cdrom_sysctl_settings.lock = lockdoor; cdrom_sysctl_settings.check = check_media_type; - - initialized = 1; } static void cdrom_sysctl_unregister(void) diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 8453a49471d7..f4ae000eb285 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -377,7 +377,7 @@ config XILINX_HWICAP config R3964 tristate "Siemens R3964 line discipline" - depends on TTY + depends on TTY && BROKEN ---help--- This driver allows synchronous communication with devices using the Siemens R3964 packet protocol. Unless you are dealing with special diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 50272fe81f26..818a8d40e5c9 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -376,7 +376,7 @@ static __init int hpet_mmap_enable(char *str) pr_info("HPET mmap %s\n", hpet_mmap_enabled ? "enabled" : "disabled"); return 1; } -__setup("hpet_mmap", hpet_mmap_enable); +__setup("hpet_mmap=", hpet_mmap_enable); static int hpet_mmap(struct file *file, struct vm_area_struct *vma) { diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c index 3fa2f8a009b3..1c5c4314c6b5 100644 --- a/drivers/char/hw_random/virtio-rng.c +++ b/drivers/char/hw_random/virtio-rng.c @@ -73,7 +73,7 @@ static int virtio_read(struct hwrng *rng, void *buf, size_t size, bool wait) if (!vi->busy) { vi->busy = true; - init_completion(&vi->have_data); + reinit_completion(&vi->have_data); register_buffer(vi, buf, size); } diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c index fa0f66809503..d29f78441cdb 100644 --- a/drivers/char/tpm/tpm_crb.c +++ b/drivers/char/tpm/tpm_crb.c @@ -102,19 +102,29 @@ static int crb_recv(struct tpm_chip *chip, u8 *buf, size_t count) struct crb_priv *priv = dev_get_drvdata(&chip->dev); unsigned int expected; - /* sanity check */ - if (count < 6) + /* A sanity check that the upper layer wants to get at least the header + * as that is the minimum size for any TPM response. + */ + if (count < TPM_HEADER_SIZE) return -EIO; + /* If this bit is set, according to the spec, the TPM is in + * unrecoverable condition. + */ if (ioread32(&priv->cca->sts) & CRB_CTRL_STS_ERROR) return -EIO; - memcpy_fromio(buf, priv->rsp, 6); - expected = be32_to_cpup((__be32 *) &buf[2]); - if (expected > count || expected < 6) + /* Read the first 8 bytes in order to get the length of the response. + * We read exactly a quad word in order to make sure that the remaining + * reads will be aligned. + */ + memcpy_fromio(buf, priv->rsp, 8); + + expected = be32_to_cpup((__be32 *)&buf[2]); + if (expected > count || expected < TPM_HEADER_SIZE) return -EIO; - memcpy_fromio(&buf[6], &priv->rsp[6], expected - 6); + memcpy_fromio(&buf[8], &priv->rsp[8], expected - 8); return expected; } diff --git a/drivers/clk/clk-twl6040.c b/drivers/clk/clk-twl6040.c index 7b222a5db931..82d615fe2947 100644 --- a/drivers/clk/clk-twl6040.c +++ b/drivers/clk/clk-twl6040.c @@ -41,6 +41,43 @@ static int twl6040_pdmclk_is_prepared(struct clk_hw *hw) return pdmclk->enabled; } +static int twl6040_pdmclk_reset_one_clock(struct twl6040_pdmclk *pdmclk, + unsigned int reg) +{ + const u8 reset_mask = TWL6040_HPLLRST; /* Same for HPPLL and LPPLL */ + int ret; + + ret = twl6040_set_bits(pdmclk->twl6040, reg, reset_mask); + if (ret < 0) + return ret; + + ret = twl6040_clear_bits(pdmclk->twl6040, reg, reset_mask); + if (ret < 0) + return ret; + + return 0; +} + +/* + * TWL6040A2 Phoenix Audio IC erratum #6: "PDM Clock Generation Issue At + * Cold Temperature". This affects cold boot and deeper idle states it + * seems. The workaround consists of resetting HPPLL and LPPLL. + */ +static int twl6040_pdmclk_quirk_reset_clocks(struct twl6040_pdmclk *pdmclk) +{ + int ret; + + ret = twl6040_pdmclk_reset_one_clock(pdmclk, TWL6040_REG_HPPLLCTL); + if (ret) + return ret; + + ret = twl6040_pdmclk_reset_one_clock(pdmclk, TWL6040_REG_LPPLLCTL); + if (ret) + return ret; + + return 0; +} + static int twl6040_pdmclk_prepare(struct clk_hw *hw) { struct twl6040_pdmclk *pdmclk = container_of(hw, struct twl6040_pdmclk, @@ -48,8 +85,20 @@ static int twl6040_pdmclk_prepare(struct clk_hw *hw) int ret; ret = twl6040_power(pdmclk->twl6040, 1); - if (!ret) - pdmclk->enabled = 1; + if (ret) + return ret; + + ret = twl6040_pdmclk_quirk_reset_clocks(pdmclk); + if (ret) + goto out_err; + + pdmclk->enabled = 1; + + return 0; + +out_err: + dev_err(pdmclk->dev, "%s: error %i\n", __func__, ret); + twl6040_power(pdmclk->twl6040, 0); return ret; } diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c index e8248f9185f7..4dec9e9ccffe 100644 --- a/drivers/clk/ingenic/cgu.c +++ b/drivers/clk/ingenic/cgu.c @@ -364,16 +364,16 @@ ingenic_clk_round_rate(struct clk_hw *hw, unsigned long req_rate, struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); struct ingenic_cgu *cgu = ingenic_clk->cgu; const struct ingenic_cgu_clk_info *clk_info; - long rate = *parent_rate; + unsigned int div = 1; clk_info = &cgu->clock_info[ingenic_clk->idx]; if (clk_info->type & CGU_CLK_DIV) - rate /= ingenic_clk_calc_div(clk_info, *parent_rate, req_rate); + div = ingenic_clk_calc_div(clk_info, *parent_rate, req_rate); else if (clk_info->type & CGU_CLK_FIXDIV) - rate /= clk_info->fixdiv.div; + div = clk_info->fixdiv.div; - return rate; + return DIV_ROUND_UP(*parent_rate, div); } static int @@ -393,7 +393,7 @@ ingenic_clk_set_rate(struct clk_hw *hw, unsigned long req_rate, if (clk_info->type & CGU_CLK_DIV) { div = ingenic_clk_calc_div(clk_info, parent_rate, req_rate); - rate = parent_rate / div; + rate = DIV_ROUND_UP(parent_rate, div); if (rate != req_rate) return -EINVAL; diff --git a/drivers/clk/ingenic/cgu.h b/drivers/clk/ingenic/cgu.h index 09700b2c555d..a22f654b2900 100644 --- a/drivers/clk/ingenic/cgu.h +++ b/drivers/clk/ingenic/cgu.h @@ -78,7 +78,7 @@ struct ingenic_cgu_mux_info { * @reg: offset of the divider control register within the CGU * @shift: number of bits to left shift the divide value by (ie. the index of * the lowest bit of the divide value within its control register) - * @div: number of bits to divide the divider value by (i.e. if the + * @div: number to divide the divider value by (i.e. if the * effective divider value is the value written to the register * multiplied by some constant) * @bits: the size of the divide value in bits diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c index 6ea5401e6881..7f1281298651 100644 --- a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c +++ b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c @@ -252,9 +252,9 @@ static SUNXI_CCU_GATE(ahb1_mmc1_clk, "ahb1-mmc1", "ahb1", static SUNXI_CCU_GATE(ahb1_mmc2_clk, "ahb1-mmc2", "ahb1", 0x060, BIT(10), 0); static SUNXI_CCU_GATE(ahb1_mmc3_clk, "ahb1-mmc3", "ahb1", - 0x060, BIT(12), 0); + 0x060, BIT(11), 0); static SUNXI_CCU_GATE(ahb1_nand1_clk, "ahb1-nand1", "ahb1", - 0x060, BIT(13), 0); + 0x060, BIT(12), 0); static SUNXI_CCU_GATE(ahb1_nand0_clk, "ahb1-nand0", "ahb1", 0x060, BIT(13), 0); static SUNXI_CCU_GATE(ahb1_sdram_clk, "ahb1-sdram", "ahb1", diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index 7f6fed9f0703..fb0cf8b74516 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -388,6 +388,13 @@ static void exynos4_mct_tick_start(unsigned long cycles, exynos4_mct_write(tmp, mevt->base + MCT_L_TCON_OFFSET); } +static void exynos4_mct_tick_clear(struct mct_clock_event_device *mevt) +{ + /* Clear the MCT tick interrupt */ + if (readl_relaxed(reg_base + mevt->base + MCT_L_INT_CSTAT_OFFSET) & 1) + exynos4_mct_write(0x1, mevt->base + MCT_L_INT_CSTAT_OFFSET); +} + static int exynos4_tick_set_next_event(unsigned long cycles, struct clock_event_device *evt) { @@ -404,6 +411,7 @@ static int set_state_shutdown(struct clock_event_device *evt) mevt = container_of(evt, struct mct_clock_event_device, evt); exynos4_mct_tick_stop(mevt); + exynos4_mct_tick_clear(mevt); return 0; } @@ -420,8 +428,11 @@ static int set_state_periodic(struct clock_event_device *evt) return 0; } -static void exynos4_mct_tick_clear(struct mct_clock_event_device *mevt) +static irqreturn_t exynos4_mct_tick_isr(int irq, void *dev_id) { + struct mct_clock_event_device *mevt = dev_id; + struct clock_event_device *evt = &mevt->evt; + /* * This is for supporting oneshot mode. * Mct would generate interrupt periodically @@ -430,16 +441,6 @@ static void exynos4_mct_tick_clear(struct mct_clock_event_device *mevt) if (!clockevent_state_periodic(&mevt->evt)) exynos4_mct_tick_stop(mevt); - /* Clear the MCT tick interrupt */ - if (readl_relaxed(reg_base + mevt->base + MCT_L_INT_CSTAT_OFFSET) & 1) - exynos4_mct_write(0x1, mevt->base + MCT_L_INT_CSTAT_OFFSET); -} - -static irqreturn_t exynos4_mct_tick_isr(int irq, void *dev_id) -{ - struct mct_clock_event_device *mevt = dev_id; - struct clock_event_device *evt = &mevt->evt; - exynos4_mct_tick_clear(mevt); evt->event_handler(evt); diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c index ce345bf34d5d..a24e9f037865 100644 --- a/drivers/cpufreq/pxa2xx-cpufreq.c +++ b/drivers/cpufreq/pxa2xx-cpufreq.c @@ -192,7 +192,7 @@ static int pxa_cpufreq_change_voltage(const struct pxa_freqs *pxa_freq) return ret; } -static void __init pxa_cpufreq_init_voltages(void) +static void pxa_cpufreq_init_voltages(void) { vcc_core = regulator_get(NULL, "vcc_core"); if (IS_ERR(vcc_core)) { @@ -208,7 +208,7 @@ static int pxa_cpufreq_change_voltage(const struct pxa_freqs *pxa_freq) return 0; } -static void __init pxa_cpufreq_init_voltages(void) { } +static void pxa_cpufreq_init_voltages(void) { } #endif static void find_freq_tables(struct cpufreq_frequency_table **freq_table, diff --git a/drivers/cpufreq/tegra124-cpufreq.c b/drivers/cpufreq/tegra124-cpufreq.c index 43530254201a..4bb154f6c54c 100644 --- a/drivers/cpufreq/tegra124-cpufreq.c +++ b/drivers/cpufreq/tegra124-cpufreq.c @@ -134,6 +134,8 @@ static int tegra124_cpufreq_probe(struct platform_device *pdev) platform_set_drvdata(pdev, priv); + of_node_put(np); + return 0; out_switch_to_pllx: diff --git a/drivers/crypto/amcc/crypto4xx_trng.c b/drivers/crypto/amcc/crypto4xx_trng.c index 677ca17fd223..368c5599515e 100644 --- a/drivers/crypto/amcc/crypto4xx_trng.c +++ b/drivers/crypto/amcc/crypto4xx_trng.c @@ -80,8 +80,10 @@ void ppc4xx_trng_probe(struct crypto4xx_core_device *core_dev) /* Find the TRNG device node and map it */ trng = of_find_matching_node(NULL, ppc4xx_trng_match); - if (!trng || !of_device_is_available(trng)) + if (!trng || !of_device_is_available(trng)) { + of_node_put(trng); return; + } dev->trng_base = of_iomap(trng, 0); of_node_put(trng); diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index 0d743c634f25..88caca3370f2 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -2131,6 +2131,7 @@ static void init_aead_job(struct aead_request *req, if (unlikely(req->src != req->dst)) { if (!edesc->dst_nents) { dst_dma = sg_dma_address(req->dst); + out_options = 0; } else { dst_dma = edesc->sec4_sg_dma + sec4_sg_index * diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index 1cfa1d9bc971..f8786f60cdc1 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -290,7 +290,7 @@ static inline int imxdma_sg_next(struct imxdma_desc *d) struct scatterlist *sg = d->sg; unsigned long now; - now = min(d->len, sg_dma_len(sg)); + now = min_t(size_t, d->len, sg_dma_len(sg)); if (d->len != IMX_DMA_LENGTH_LOOP) d->len -= now; diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c index e244e10a94b5..5444f39bf939 100644 --- a/drivers/dma/qcom/hidma.c +++ b/drivers/dma/qcom/hidma.c @@ -131,24 +131,25 @@ static void hidma_process_completed(struct hidma_chan *mchan) desc = &mdesc->desc; last_cookie = desc->cookie; + llstat = hidma_ll_status(mdma->lldev, mdesc->tre_ch); + spin_lock_irqsave(&mchan->lock, irqflags); + if (llstat == DMA_COMPLETE) { + mchan->last_success = last_cookie; + result.result = DMA_TRANS_NOERROR; + } else { + result.result = DMA_TRANS_ABORTED; + } + dma_cookie_complete(desc); spin_unlock_irqrestore(&mchan->lock, irqflags); - llstat = hidma_ll_status(mdma->lldev, mdesc->tre_ch); dmaengine_desc_get_callback(desc, &cb); dma_run_dependencies(desc); spin_lock_irqsave(&mchan->lock, irqflags); list_move(&mdesc->node, &mchan->free); - - if (llstat == DMA_COMPLETE) { - mchan->last_success = last_cookie; - result.result = DMA_TRANS_NOERROR; - } else - result.result = DMA_TRANS_ABORTED; - spin_unlock_irqrestore(&mchan->lock, irqflags); dmaengine_desc_callback_invoke(&cb, &result); diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index 3722b9d8d9fe..22f7f0c68a48 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -635,7 +635,10 @@ static void handle_cont_sngl_cycle_dma_done(struct tegra_dma_channel *tdc, sgreq = list_first_entry(&tdc->pending_sg_req, typeof(*sgreq), node); dma_desc = sgreq->dma_desc; - dma_desc->bytes_transferred += sgreq->req_len; + /* if we dma for long enough the transfer count will wrap */ + dma_desc->bytes_transferred = + (dma_desc->bytes_transferred + sgreq->req_len) % + dma_desc->bytes_requested; /* Callback need to be call */ if (!dma_desc->cb_count) diff --git a/drivers/firmware/efi/memattr.c b/drivers/firmware/efi/memattr.c index 236004b9a50d..9faa09e7c31f 100644 --- a/drivers/firmware/efi/memattr.c +++ b/drivers/firmware/efi/memattr.c @@ -93,7 +93,7 @@ static bool entry_is_valid(const efi_memory_desc_t *in, efi_memory_desc_t *out) if (!(md->attribute & EFI_MEMORY_RUNTIME)) continue; - if (md->virt_addr == 0) { + if (md->virt_addr == 0 && md->phys_addr != 0) { /* no virtual mapping has been installed by the stub */ break; } diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c index 8ff7b0d3eac6..3b68c03a281d 100644 --- a/drivers/gpio/gpio-adnp.c +++ b/drivers/gpio/gpio-adnp.c @@ -132,8 +132,10 @@ static int adnp_gpio_direction_input(struct gpio_chip *chip, unsigned offset) if (err < 0) goto out; - if (err & BIT(pos)) - err = -EACCES; + if (value & BIT(pos)) { + err = -EPERM; + goto out; + } err = 0; diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index 6f9c9ac6ee70..75f30a0c418a 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -837,14 +837,16 @@ static void omap_gpio_unmask_irq(struct irq_data *d) if (trigger) omap_set_gpio_triggering(bank, offset, trigger); - /* For level-triggered GPIOs, the clearing must be done after - * the HW source is cleared, thus after the handler has run */ - if (bank->level_mask & BIT(offset)) { - omap_set_gpio_irqenable(bank, offset, 0); + omap_set_gpio_irqenable(bank, offset, 1); + + /* + * For level-triggered GPIOs, clearing must be done after the source + * is cleared, thus after the handler has run. OMAP4 needs this done + * after enabing the interrupt to clear the wakeup status. + */ + if (bank->level_mask & BIT(offset)) omap_clear_gpio_irqstatus(bank, offset); - } - omap_set_gpio_irqenable(bank, offset, 1); raw_spin_unlock_irqrestore(&bank->lock, flags); } diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c index 7a6305884f97..32d22bdf7164 100644 --- a/drivers/gpio/gpio-pxa.c +++ b/drivers/gpio/gpio-pxa.c @@ -774,6 +774,9 @@ static int pxa_gpio_suspend(void) struct pxa_gpio_bank *c; int gpio; + if (!pchip) + return 0; + for_each_gpio_bank(gpio, c, pchip) { c->saved_gplr = readl_relaxed(c->regbase + GPLR_OFFSET); c->saved_gpdr = readl_relaxed(c->regbase + GPDR_OFFSET); @@ -792,6 +795,9 @@ static void pxa_gpio_resume(void) struct pxa_gpio_bank *c; int gpio; + if (!pchip) + return; + for_each_gpio_bank(gpio, c, pchip) { /* restore level with set/clear */ writel_relaxed(c->saved_gplr, c->regbase + GPSR_OFFSET); diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index b59441d109a5..4a959740058e 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3069,6 +3069,7 @@ static int drm_dp_mst_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs msg.u.i2c_read.transactions[i].i2c_dev_id = msgs[i].addr; msg.u.i2c_read.transactions[i].num_bytes = msgs[i].len; msg.u.i2c_read.transactions[i].bytes = msgs[i].buf; + msg.u.i2c_read.transactions[i].no_stop_bit = !(msgs[i].flags & I2C_M_STOP); } msg.u.i2c_read.read_i2c_device_id = msgs[num - 1].addr; msg.u.i2c_read.num_bytes_read = msgs[num - 1].len; diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 6509031098d5..26c4befcd234 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1600,7 +1600,8 @@ __vma_matches(struct vm_area_struct *vma, struct file *filp, if (vma->vm_file != filp) return false; - return vma->vm_start == addr && (vma->vm_end - vma->vm_start) == size; + return vma->vm_start == addr && + (vma->vm_end - vma->vm_start) == PAGE_ALIGN(size); } /** diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c index 434d1e29f279..cd37d00e9723 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c +++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c @@ -750,7 +750,9 @@ static int nv17_tv_set_property(struct drm_encoder *encoder, /* Disable the crtc to ensure a full modeset is * performed whenever it's turned on again. */ if (crtc) - drm_crtc_force_disable(crtc); + drm_crtc_helper_set_mode(crtc, &crtc->mode, + crtc->x, crtc->y, + crtc->primary->fb); } return 0; diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index d960d3915408..f09388e00523 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -1299,6 +1299,7 @@ static int evergreen_cs_handle_reg(struct radeon_cs_parser *p, u32 reg, u32 idx) return -EINVAL; } ib[idx] += (u32)((reloc->gpu_offset >> 8) & 0xffffffff); + break; case CB_TARGET_MASK: track->cb_target_mask = radeon_get_ib_value(p, idx); track->cb_dirty = true; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c index aec6e9eef489..55884cb5a0fc 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c @@ -531,11 +531,9 @@ static int vmw_fb_set_par(struct fb_info *info) 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }; - struct drm_display_mode *old_mode; struct drm_display_mode *mode; int ret; - old_mode = par->set_mode; mode = drm_mode_duplicate(vmw_priv->dev, &new_mode); if (!mode) { DRM_ERROR("Could not create new fb mode.\n"); @@ -546,11 +544,7 @@ static int vmw_fb_set_par(struct fb_info *info) mode->vdisplay = var->yres; vmw_guess_mode_timing(mode); - if (old_mode && drm_mode_equal(old_mode, mode)) { - drm_mode_destroy(vmw_priv->dev, mode); - mode = old_mode; - old_mode = NULL; - } else if (!vmw_kms_validate_mode_vram(vmw_priv, + if (!vmw_kms_validate_mode_vram(vmw_priv, mode->hdisplay * DIV_ROUND_UP(var->bits_per_pixel, 8), mode->vdisplay)) { @@ -613,8 +607,8 @@ static int vmw_fb_set_par(struct fb_info *info) schedule_delayed_work(&par->local_work, 0); out_unlock: - if (old_mode) - drm_mode_destroy(vmw_priv->dev, old_mode); + if (par->set_mode) + drm_mode_destroy(vmw_priv->dev, par->set_mode); par->set_mode = mode; drm_modeset_unlock_all(vmw_priv->dev); diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c index 99c813a4ec1f..57d22bc963b5 100644 --- a/drivers/gpu/ipu-v3/ipu-common.c +++ b/drivers/gpu/ipu-v3/ipu-common.c @@ -884,8 +884,8 @@ static struct ipu_devtype ipu_type_imx51 = { .cpmem_ofs = 0x1f000000, .srm_ofs = 0x1f040000, .tpm_ofs = 0x1f060000, - .csi0_ofs = 0x1f030000, - .csi1_ofs = 0x1f038000, + .csi0_ofs = 0x1e030000, + .csi1_ofs = 0x1e038000, .ic_ofs = 0x1e020000, .disp0_ofs = 0x1e040000, .disp1_ofs = 0x1e048000, @@ -900,8 +900,8 @@ static struct ipu_devtype ipu_type_imx53 = { .cpmem_ofs = 0x07000000, .srm_ofs = 0x07040000, .tpm_ofs = 0x07060000, - .csi0_ofs = 0x07030000, - .csi1_ofs = 0x07038000, + .csi0_ofs = 0x06030000, + .csi1_ofs = 0x06038000, .ic_ofs = 0x06020000, .disp0_ofs = 0x06040000, .disp1_ofs = 0x06048000, diff --git a/drivers/hid/i2c-hid/Makefile b/drivers/hid/i2c-hid/Makefile index 832d8f9aaba2..099e1ce2f234 100644 --- a/drivers/hid/i2c-hid/Makefile +++ b/drivers/hid/i2c-hid/Makefile @@ -3,3 +3,6 @@ # obj-$(CONFIG_I2C_HID) += i2c-hid.o + +i2c-hid-objs = i2c-hid-core.o +i2c-hid-$(CONFIG_DMI) += i2c-hid-dmi-quirks.o diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid-core.c index ce2b80009c19..850527d5fab1 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -42,6 +42,7 @@ #include <linux/i2c/i2c-hid.h> #include "../hid-ids.h" +#include "i2c-hid.h" /* quirks to control the device */ #define I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV BIT(0) @@ -724,6 +725,7 @@ static int i2c_hid_parse(struct hid_device *hid) char *rdesc; int ret; int tries = 3; + char *use_override; i2c_hid_dbg(ihid, "entering %s\n", __func__); @@ -742,26 +744,37 @@ static int i2c_hid_parse(struct hid_device *hid) if (ret) return ret; - rdesc = kzalloc(rsize, GFP_KERNEL); + use_override = i2c_hid_get_dmi_hid_report_desc_override(client->name, + &rsize); - if (!rdesc) { - dbg_hid("couldn't allocate rdesc memory\n"); - return -ENOMEM; - } + if (use_override) { + rdesc = use_override; + i2c_hid_dbg(ihid, "Using a HID report descriptor override\n"); + } else { + rdesc = kzalloc(rsize, GFP_KERNEL); - i2c_hid_dbg(ihid, "asking HID report descriptor\n"); + if (!rdesc) { + dbg_hid("couldn't allocate rdesc memory\n"); + return -ENOMEM; + } - ret = i2c_hid_command(client, &hid_report_descr_cmd, rdesc, rsize); - if (ret) { - hid_err(hid, "reading report descriptor failed\n"); - kfree(rdesc); - return -EIO; + i2c_hid_dbg(ihid, "asking HID report descriptor\n"); + + ret = i2c_hid_command(client, &hid_report_descr_cmd, + rdesc, rsize); + if (ret) { + hid_err(hid, "reading report descriptor failed\n"); + kfree(rdesc); + return -EIO; + } } i2c_hid_dbg(ihid, "Report Descriptor: %*ph\n", rsize, rdesc); ret = hid_parse_report(hid, rdesc, rsize); - kfree(rdesc); + if (!use_override) + kfree(rdesc); + if (ret) { dbg_hid("parsing report descriptor failed\n"); return ret; @@ -899,12 +912,19 @@ static int i2c_hid_fetch_hid_descriptor(struct i2c_hid *ihid) int ret; /* i2c hid fetch using a fixed descriptor size (30 bytes) */ - i2c_hid_dbg(ihid, "Fetching the HID descriptor\n"); - ret = i2c_hid_command(client, &hid_descr_cmd, ihid->hdesc_buffer, - sizeof(struct i2c_hid_desc)); - if (ret) { - dev_err(&client->dev, "hid_descr_cmd failed\n"); - return -ENODEV; + if (i2c_hid_get_dmi_i2c_hid_desc_override(client->name)) { + i2c_hid_dbg(ihid, "Using a HID descriptor override\n"); + ihid->hdesc = + *i2c_hid_get_dmi_i2c_hid_desc_override(client->name); + } else { + i2c_hid_dbg(ihid, "Fetching the HID descriptor\n"); + ret = i2c_hid_command(client, &hid_descr_cmd, + ihid->hdesc_buffer, + sizeof(struct i2c_hid_desc)); + if (ret) { + dev_err(&client->dev, "hid_descr_cmd failed\n"); + return -ENODEV; + } } /* Validate the length of HID descriptor, the 4 first bytes: diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c new file mode 100644 index 000000000000..1d645c9ab417 --- /dev/null +++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c @@ -0,0 +1,376 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Quirks for I2C-HID devices that do not supply proper descriptors + * + * Copyright (c) 2018 Julian Sax <jsbc@gmx.de> + * + */ + +#include <linux/types.h> +#include <linux/dmi.h> +#include <linux/mod_devicetable.h> + +#include "i2c-hid.h" + + +struct i2c_hid_desc_override { + union { + struct i2c_hid_desc *i2c_hid_desc; + uint8_t *i2c_hid_desc_buffer; + }; + uint8_t *hid_report_desc; + unsigned int hid_report_desc_size; + uint8_t *i2c_name; +}; + + +/* + * descriptors for the SIPODEV SP1064 touchpad + * + * This device does not supply any descriptors and on windows a filter + * driver operates between the i2c-hid layer and the device and injects + * these descriptors when the device is prompted. The descriptors were + * extracted by listening to the i2c-hid traffic that occurs between the + * windows filter driver and the windows i2c-hid driver. + */ + +static const struct i2c_hid_desc_override sipodev_desc = { + .i2c_hid_desc_buffer = (uint8_t []) + {0x1e, 0x00, /* Length of descriptor */ + 0x00, 0x01, /* Version of descriptor */ + 0xdb, 0x01, /* Length of report descriptor */ + 0x21, 0x00, /* Location of report descriptor */ + 0x24, 0x00, /* Location of input report */ + 0x1b, 0x00, /* Max input report length */ + 0x25, 0x00, /* Location of output report */ + 0x11, 0x00, /* Max output report length */ + 0x22, 0x00, /* Location of command register */ + 0x23, 0x00, /* Location of data register */ + 0x11, 0x09, /* Vendor ID */ + 0x88, 0x52, /* Product ID */ + 0x06, 0x00, /* Version ID */ + 0x00, 0x00, 0x00, 0x00 /* Reserved */ + }, + + .hid_report_desc = (uint8_t []) + {0x05, 0x01, /* Usage Page (Desktop), */ + 0x09, 0x02, /* Usage (Mouse), */ + 0xA1, 0x01, /* Collection (Application), */ + 0x85, 0x01, /* Report ID (1), */ + 0x09, 0x01, /* Usage (Pointer), */ + 0xA1, 0x00, /* Collection (Physical), */ + 0x05, 0x09, /* Usage Page (Button), */ + 0x19, 0x01, /* Usage Minimum (01h), */ + 0x29, 0x02, /* Usage Maximum (02h), */ + 0x25, 0x01, /* Logical Maximum (1), */ + 0x75, 0x01, /* Report Size (1), */ + 0x95, 0x02, /* Report Count (2), */ + 0x81, 0x02, /* Input (Variable), */ + 0x95, 0x06, /* Report Count (6), */ + 0x81, 0x01, /* Input (Constant), */ + 0x05, 0x01, /* Usage Page (Desktop), */ + 0x09, 0x30, /* Usage (X), */ + 0x09, 0x31, /* Usage (Y), */ + 0x15, 0x81, /* Logical Minimum (-127), */ + 0x25, 0x7F, /* Logical Maximum (127), */ + 0x75, 0x08, /* Report Size (8), */ + 0x95, 0x02, /* Report Count (2), */ + 0x81, 0x06, /* Input (Variable, Relative), */ + 0xC0, /* End Collection, */ + 0xC0, /* End Collection, */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x09, 0x05, /* Usage (Touchpad), */ + 0xA1, 0x01, /* Collection (Application), */ + 0x85, 0x04, /* Report ID (4), */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x09, 0x22, /* Usage (Finger), */ + 0xA1, 0x02, /* Collection (Logical), */ + 0x15, 0x00, /* Logical Minimum (0), */ + 0x25, 0x01, /* Logical Maximum (1), */ + 0x09, 0x47, /* Usage (Touch Valid), */ + 0x09, 0x42, /* Usage (Tip Switch), */ + 0x95, 0x02, /* Report Count (2), */ + 0x75, 0x01, /* Report Size (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x95, 0x01, /* Report Count (1), */ + 0x75, 0x03, /* Report Size (3), */ + 0x25, 0x05, /* Logical Maximum (5), */ + 0x09, 0x51, /* Usage (Contact Identifier), */ + 0x81, 0x02, /* Input (Variable), */ + 0x75, 0x01, /* Report Size (1), */ + 0x95, 0x03, /* Report Count (3), */ + 0x81, 0x03, /* Input (Constant, Variable), */ + 0x05, 0x01, /* Usage Page (Desktop), */ + 0x26, 0x44, 0x0A, /* Logical Maximum (2628), */ + 0x75, 0x10, /* Report Size (16), */ + 0x55, 0x0E, /* Unit Exponent (14), */ + 0x65, 0x11, /* Unit (Centimeter), */ + 0x09, 0x30, /* Usage (X), */ + 0x46, 0x1A, 0x04, /* Physical Maximum (1050), */ + 0x95, 0x01, /* Report Count (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x46, 0xBC, 0x02, /* Physical Maximum (700), */ + 0x26, 0x34, 0x05, /* Logical Maximum (1332), */ + 0x09, 0x31, /* Usage (Y), */ + 0x81, 0x02, /* Input (Variable), */ + 0xC0, /* End Collection, */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x09, 0x22, /* Usage (Finger), */ + 0xA1, 0x02, /* Collection (Logical), */ + 0x25, 0x01, /* Logical Maximum (1), */ + 0x09, 0x47, /* Usage (Touch Valid), */ + 0x09, 0x42, /* Usage (Tip Switch), */ + 0x95, 0x02, /* Report Count (2), */ + 0x75, 0x01, /* Report Size (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x95, 0x01, /* Report Count (1), */ + 0x75, 0x03, /* Report Size (3), */ + 0x25, 0x05, /* Logical Maximum (5), */ + 0x09, 0x51, /* Usage (Contact Identifier), */ + 0x81, 0x02, /* Input (Variable), */ + 0x75, 0x01, /* Report Size (1), */ + 0x95, 0x03, /* Report Count (3), */ + 0x81, 0x03, /* Input (Constant, Variable), */ + 0x05, 0x01, /* Usage Page (Desktop), */ + 0x26, 0x44, 0x0A, /* Logical Maximum (2628), */ + 0x75, 0x10, /* Report Size (16), */ + 0x09, 0x30, /* Usage (X), */ + 0x46, 0x1A, 0x04, /* Physical Maximum (1050), */ + 0x95, 0x01, /* Report Count (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x46, 0xBC, 0x02, /* Physical Maximum (700), */ + 0x26, 0x34, 0x05, /* Logical Maximum (1332), */ + 0x09, 0x31, /* Usage (Y), */ + 0x81, 0x02, /* Input (Variable), */ + 0xC0, /* End Collection, */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x09, 0x22, /* Usage (Finger), */ + 0xA1, 0x02, /* Collection (Logical), */ + 0x25, 0x01, /* Logical Maximum (1), */ + 0x09, 0x47, /* Usage (Touch Valid), */ + 0x09, 0x42, /* Usage (Tip Switch), */ + 0x95, 0x02, /* Report Count (2), */ + 0x75, 0x01, /* Report Size (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x95, 0x01, /* Report Count (1), */ + 0x75, 0x03, /* Report Size (3), */ + 0x25, 0x05, /* Logical Maximum (5), */ + 0x09, 0x51, /* Usage (Contact Identifier), */ + 0x81, 0x02, /* Input (Variable), */ + 0x75, 0x01, /* Report Size (1), */ + 0x95, 0x03, /* Report Count (3), */ + 0x81, 0x03, /* Input (Constant, Variable), */ + 0x05, 0x01, /* Usage Page (Desktop), */ + 0x26, 0x44, 0x0A, /* Logical Maximum (2628), */ + 0x75, 0x10, /* Report Size (16), */ + 0x09, 0x30, /* Usage (X), */ + 0x46, 0x1A, 0x04, /* Physical Maximum (1050), */ + 0x95, 0x01, /* Report Count (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x46, 0xBC, 0x02, /* Physical Maximum (700), */ + 0x26, 0x34, 0x05, /* Logical Maximum (1332), */ + 0x09, 0x31, /* Usage (Y), */ + 0x81, 0x02, /* Input (Variable), */ + 0xC0, /* End Collection, */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x09, 0x22, /* Usage (Finger), */ + 0xA1, 0x02, /* Collection (Logical), */ + 0x25, 0x01, /* Logical Maximum (1), */ + 0x09, 0x47, /* Usage (Touch Valid), */ + 0x09, 0x42, /* Usage (Tip Switch), */ + 0x95, 0x02, /* Report Count (2), */ + 0x75, 0x01, /* Report Size (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x95, 0x01, /* Report Count (1), */ + 0x75, 0x03, /* Report Size (3), */ + 0x25, 0x05, /* Logical Maximum (5), */ + 0x09, 0x51, /* Usage (Contact Identifier), */ + 0x81, 0x02, /* Input (Variable), */ + 0x75, 0x01, /* Report Size (1), */ + 0x95, 0x03, /* Report Count (3), */ + 0x81, 0x03, /* Input (Constant, Variable), */ + 0x05, 0x01, /* Usage Page (Desktop), */ + 0x26, 0x44, 0x0A, /* Logical Maximum (2628), */ + 0x75, 0x10, /* Report Size (16), */ + 0x09, 0x30, /* Usage (X), */ + 0x46, 0x1A, 0x04, /* Physical Maximum (1050), */ + 0x95, 0x01, /* Report Count (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x46, 0xBC, 0x02, /* Physical Maximum (700), */ + 0x26, 0x34, 0x05, /* Logical Maximum (1332), */ + 0x09, 0x31, /* Usage (Y), */ + 0x81, 0x02, /* Input (Variable), */ + 0xC0, /* End Collection, */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x55, 0x0C, /* Unit Exponent (12), */ + 0x66, 0x01, 0x10, /* Unit (Seconds), */ + 0x47, 0xFF, 0xFF, 0x00, 0x00,/* Physical Maximum (65535), */ + 0x27, 0xFF, 0xFF, 0x00, 0x00,/* Logical Maximum (65535), */ + 0x75, 0x10, /* Report Size (16), */ + 0x95, 0x01, /* Report Count (1), */ + 0x09, 0x56, /* Usage (Scan Time), */ + 0x81, 0x02, /* Input (Variable), */ + 0x09, 0x54, /* Usage (Contact Count), */ + 0x25, 0x7F, /* Logical Maximum (127), */ + 0x75, 0x08, /* Report Size (8), */ + 0x81, 0x02, /* Input (Variable), */ + 0x05, 0x09, /* Usage Page (Button), */ + 0x09, 0x01, /* Usage (01h), */ + 0x25, 0x01, /* Logical Maximum (1), */ + 0x75, 0x01, /* Report Size (1), */ + 0x95, 0x01, /* Report Count (1), */ + 0x81, 0x02, /* Input (Variable), */ + 0x95, 0x07, /* Report Count (7), */ + 0x81, 0x03, /* Input (Constant, Variable), */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x85, 0x02, /* Report ID (2), */ + 0x09, 0x55, /* Usage (Contact Count Maximum), */ + 0x09, 0x59, /* Usage (59h), */ + 0x75, 0x04, /* Report Size (4), */ + 0x95, 0x02, /* Report Count (2), */ + 0x25, 0x0F, /* Logical Maximum (15), */ + 0xB1, 0x02, /* Feature (Variable), */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x85, 0x07, /* Report ID (7), */ + 0x09, 0x60, /* Usage (60h), */ + 0x75, 0x01, /* Report Size (1), */ + 0x95, 0x01, /* Report Count (1), */ + 0x25, 0x01, /* Logical Maximum (1), */ + 0xB1, 0x02, /* Feature (Variable), */ + 0x95, 0x07, /* Report Count (7), */ + 0xB1, 0x03, /* Feature (Constant, Variable), */ + 0x85, 0x06, /* Report ID (6), */ + 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */ + 0x09, 0xC5, /* Usage (C5h), */ + 0x26, 0xFF, 0x00, /* Logical Maximum (255), */ + 0x75, 0x08, /* Report Size (8), */ + 0x96, 0x00, 0x01, /* Report Count (256), */ + 0xB1, 0x02, /* Feature (Variable), */ + 0xC0, /* End Collection, */ + 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */ + 0x09, 0x01, /* Usage (01h), */ + 0xA1, 0x01, /* Collection (Application), */ + 0x85, 0x0D, /* Report ID (13), */ + 0x26, 0xFF, 0x00, /* Logical Maximum (255), */ + 0x19, 0x01, /* Usage Minimum (01h), */ + 0x29, 0x02, /* Usage Maximum (02h), */ + 0x75, 0x08, /* Report Size (8), */ + 0x95, 0x02, /* Report Count (2), */ + 0xB1, 0x02, /* Feature (Variable), */ + 0xC0, /* End Collection, */ + 0x05, 0x0D, /* Usage Page (Digitizer), */ + 0x09, 0x0E, /* Usage (Configuration), */ + 0xA1, 0x01, /* Collection (Application), */ + 0x85, 0x03, /* Report ID (3), */ + 0x09, 0x22, /* Usage (Finger), */ + 0xA1, 0x02, /* Collection (Logical), */ + 0x09, 0x52, /* Usage (Device Mode), */ + 0x25, 0x0A, /* Logical Maximum (10), */ + 0x95, 0x01, /* Report Count (1), */ + 0xB1, 0x02, /* Feature (Variable), */ + 0xC0, /* End Collection, */ + 0x09, 0x22, /* Usage (Finger), */ + 0xA1, 0x00, /* Collection (Physical), */ + 0x85, 0x05, /* Report ID (5), */ + 0x09, 0x57, /* Usage (57h), */ + 0x09, 0x58, /* Usage (58h), */ + 0x75, 0x01, /* Report Size (1), */ + 0x95, 0x02, /* Report Count (2), */ + 0x25, 0x01, /* Logical Maximum (1), */ + 0xB1, 0x02, /* Feature (Variable), */ + 0x95, 0x06, /* Report Count (6), */ + 0xB1, 0x03, /* Feature (Constant, Variable),*/ + 0xC0, /* End Collection, */ + 0xC0 /* End Collection */ + }, + .hid_report_desc_size = 475, + .i2c_name = "SYNA3602:00" +}; + + +static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = { + { + .ident = "Teclast F6 Pro", + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TECLAST"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "F6 Pro"), + }, + .driver_data = (void *)&sipodev_desc + }, + { + .ident = "Teclast F7", + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TECLAST"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "F7"), + }, + .driver_data = (void *)&sipodev_desc + }, + { + .ident = "Trekstor Primebook C13", + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C13"), + }, + .driver_data = (void *)&sipodev_desc + }, + { + .ident = "Trekstor Primebook C11", + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C11"), + }, + .driver_data = (void *)&sipodev_desc + }, + { + .ident = "Direkt-Tek DTLAPY116-2", + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Direkt-Tek"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "DTLAPY116-2"), + }, + .driver_data = (void *)&sipodev_desc + }, + { + .ident = "Mediacom Flexbook Edge 11", + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MEDIACOM"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook edge11 - M-FBE11"), + }, + .driver_data = (void *)&sipodev_desc + } +}; + + +struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name) +{ + struct i2c_hid_desc_override *override; + const struct dmi_system_id *system_id; + + system_id = dmi_first_match(i2c_hid_dmi_desc_override_table); + if (!system_id) + return NULL; + + override = system_id->driver_data; + if (strcmp(override->i2c_name, i2c_name)) + return NULL; + + return override->i2c_hid_desc; +} + +char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name, + unsigned int *size) +{ + struct i2c_hid_desc_override *override; + const struct dmi_system_id *system_id; + + system_id = dmi_first_match(i2c_hid_dmi_desc_override_table); + if (!system_id) + return NULL; + + override = system_id->driver_data; + if (strcmp(override->i2c_name, i2c_name)) + return NULL; + + *size = override->hid_report_desc_size; + return override->hid_report_desc; +} diff --git a/drivers/hid/i2c-hid/i2c-hid.h b/drivers/hid/i2c-hid/i2c-hid.h new file mode 100644 index 000000000000..a8c19aef5824 --- /dev/null +++ b/drivers/hid/i2c-hid/i2c-hid.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef I2C_HID_H +#define I2C_HID_H + + +#ifdef CONFIG_DMI +struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name); +char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name, + unsigned int *size); +#else +static inline struct i2c_hid_desc + *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name) +{ return NULL; } +static inline char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name, + unsigned int *size) +{ return NULL; } +#endif + +#endif diff --git a/drivers/hid/intel-ish-hid/ipc/ipc.c b/drivers/hid/intel-ish-hid/ipc/ipc.c index 0c9ac4d5d850..41d44536aa15 100644 --- a/drivers/hid/intel-ish-hid/ipc/ipc.c +++ b/drivers/hid/intel-ish-hid/ipc/ipc.c @@ -92,7 +92,10 @@ static bool check_generated_interrupt(struct ishtp_device *dev) IPC_INT_FROM_ISH_TO_HOST_CHV_AB(pisr_val); } else { pisr_val = ish_reg_read(dev, IPC_REG_PISR_BXT); - interrupt_generated = IPC_INT_FROM_ISH_TO_HOST_BXT(pisr_val); + interrupt_generated = !!pisr_val; + /* only busy-clear bit is RW, others are RO */ + if (pisr_val) + ish_reg_write(dev, IPC_REG_PISR_BXT, pisr_val); } return interrupt_generated; @@ -795,11 +798,11 @@ int ish_hw_start(struct ishtp_device *dev) { ish_set_host_rdy(dev); + set_host_ready(dev); + /* After that we can enable ISH DMA operation and wakeup ISHFW */ ish_wakeup(dev); - set_host_ready(dev); - /* wait for FW-initiated reset flow */ if (!dev->recvd_hw_ready) wait_event_interruptible_timeout(dev->wait_hw_ready, diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c index 256521509d20..0de18c76f8d4 100644 --- a/drivers/hid/intel-ish-hid/ishtp/bus.c +++ b/drivers/hid/intel-ish-hid/ishtp/bus.c @@ -628,7 +628,8 @@ int ishtp_cl_device_bind(struct ishtp_cl *cl) spin_lock_irqsave(&cl->dev->device_list_lock, flags); list_for_each_entry(cl_device, &cl->dev->device_list, device_link) { - if (cl_device->fw_client->client_id == cl->fw_client_id) { + if (cl_device->fw_client && + cl_device->fw_client->client_id == cl->fw_client_id) { cl->device = cl_device; rv = 0; break; @@ -688,6 +689,7 @@ void ishtp_bus_remove_all_clients(struct ishtp_device *ishtp_dev, spin_lock_irqsave(&ishtp_dev->device_list_lock, flags); list_for_each_entry_safe(cl_device, n, &ishtp_dev->device_list, device_link) { + cl_device->fw_client = NULL; if (warm_reset && cl_device->reference_count) continue; diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c index 4db8d6a4d0cb..da27f8edba50 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.c +++ b/drivers/hwtracing/coresight/coresight-etm4x.c @@ -61,7 +61,8 @@ static void etm4_os_unlock(struct etmv4_drvdata *drvdata) static bool etm4_arch_supported(u8 arch) { - switch (arch) { + /* Mask out the minor version number */ + switch (arch & 0xf0) { case ETM_ARCH_V4: break; default: diff --git a/drivers/hwtracing/intel_th/gth.c b/drivers/hwtracing/intel_th/gth.c index 33e09369a491..b0502e2782c1 100644 --- a/drivers/hwtracing/intel_th/gth.c +++ b/drivers/hwtracing/intel_th/gth.c @@ -599,11 +599,15 @@ static void intel_th_gth_unassign(struct intel_th_device *thdev, { struct gth_device *gth = dev_get_drvdata(&thdev->dev); int port = othdev->output.port; + int master; spin_lock(>h->gth_lock); othdev->output.port = -1; othdev->output.active = false; gth->output[port].output = NULL; + for (master = 0; master < TH_CONFIGURABLE_MASTERS; master++) + if (gth->master[master] == port) + gth->master[master] = -1; spin_unlock(>h->gth_lock); } diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index c38645106783..3c45c1c15f7e 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -252,6 +252,9 @@ static int find_free_channels(unsigned long *bitmap, unsigned int start, ; if (i == width) return pos; + + /* step over [pos..pos+i) to continue search */ + pos += i; } return -1; @@ -558,7 +561,7 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) { struct stm_device *stm = stmf->stm; struct stp_policy_id *id; - int ret = -EINVAL; + int ret = -EINVAL, wlimit = 1; u32 size; if (stmf->output.nr_chans) @@ -586,8 +589,10 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) if (id->__reserved_0 || id->__reserved_1) goto err_free; - if (id->width < 1 || - id->width > PAGE_SIZE / stm->data->sw_mmiosz) + if (stm->data->sw_mmiosz) + wlimit = PAGE_SIZE / stm->data->sw_mmiosz; + + if (id->width < 1 || id->width > wlimit) goto err_free; ret = stm_file_assign(stmf, id->id, id->width); diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c index 45d6771fac8c..59c08d5b75d6 100644 --- a/drivers/i2c/busses/i2c-cadence.c +++ b/drivers/i2c/busses/i2c-cadence.c @@ -382,8 +382,10 @@ static void cdns_i2c_mrecv(struct cdns_i2c *id) * Check for the message size against FIFO depth and set the * 'hold bus' bit if it is greater than FIFO depth. */ - if (id->recv_count > CDNS_I2C_FIFO_DEPTH) + if ((id->recv_count > CDNS_I2C_FIFO_DEPTH) || id->bus_hold_flag) ctrl_reg |= CDNS_I2C_CR_HOLD; + else + ctrl_reg = ctrl_reg & ~CDNS_I2C_CR_HOLD; cdns_i2c_writereg(ctrl_reg, CDNS_I2C_CR_OFFSET); @@ -440,8 +442,11 @@ static void cdns_i2c_msend(struct cdns_i2c *id) * Check for the message size against FIFO depth and set the * 'hold bus' bit if it is greater than FIFO depth. */ - if (id->send_count > CDNS_I2C_FIFO_DEPTH) + if ((id->send_count > CDNS_I2C_FIFO_DEPTH) || id->bus_hold_flag) ctrl_reg |= CDNS_I2C_CR_HOLD; + else + ctrl_reg = ctrl_reg & ~CDNS_I2C_CR_HOLD; + cdns_i2c_writereg(ctrl_reg, CDNS_I2C_CR_OFFSET); /* Clear the interrupts in interrupt status register. */ diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 586e557e113a..36100f453f31 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -794,7 +794,7 @@ static const struct i2c_algorithm tegra_i2c_algo = { /* payload size is only 12 bit */ static struct i2c_adapter_quirks tegra_i2c_quirks = { .max_read_len = 4096, - .max_write_len = 4096, + .max_write_len = 4096 - 12, }; static const struct tegra_i2c_hw_feature tegra20_i2c_hw = { diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 7484aac1e14d..80d82c6792d8 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -3250,16 +3250,16 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr, the underlying bus driver */ break; case I2C_SMBUS_I2C_BLOCK_DATA: + if (data->block[0] > I2C_SMBUS_BLOCK_MAX) { + dev_err(&adapter->dev, "Invalid block %s size %d\n", + read_write == I2C_SMBUS_READ ? "read" : "write", + data->block[0]); + return -EINVAL; + } if (read_write == I2C_SMBUS_READ) { msg[1].len = data->block[0]; } else { msg[0].len = data->block[0] + 1; - if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) { - dev_err(&adapter->dev, - "Invalid block write size %d\n", - data->block[0]); - return -EINVAL; - } for (i = 1; i <= data->block[0]; i++) msgbuf0[i] = data->block[i]; } diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c index c15756d7bf7f..eb8b735ca12b 100644 --- a/drivers/iio/adc/exynos_adc.c +++ b/drivers/iio/adc/exynos_adc.c @@ -916,7 +916,7 @@ static int exynos_adc_remove(struct platform_device *pdev) struct iio_dev *indio_dev = platform_get_drvdata(pdev); struct exynos_adc *info = iio_priv(indio_dev); - if (IS_REACHABLE(CONFIG_INPUT)) { + if (IS_REACHABLE(CONFIG_INPUT) && info->input) { free_irq(info->tsirq, info); input_unregister_device(info->input); } diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index dd18b74cd01d..a2322b2dbd82 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -1872,8 +1872,10 @@ static int abort_rpl(struct c4iw_dev *dev, struct sk_buff *skb) } mutex_unlock(&ep->com.mutex); - if (release) + if (release) { + close_complete_upcall(ep, -ECONNRESET); release_ep_resources(ep); + } c4iw_put_ep(&ep->com); return 0; } @@ -3567,7 +3569,6 @@ int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp) if (close) { if (abrupt) { set_bit(EP_DISC_ABORT, &ep->com.history); - close_complete_upcall(ep, -ECONNRESET); ret = send_abort(ep); } else { set_bit(EP_DISC_CLOSE, &ep->com.history); diff --git a/drivers/infiniband/hw/mlx4/alias_GUID.c b/drivers/infiniband/hw/mlx4/alias_GUID.c index 5e9939045852..ec138845a474 100644 --- a/drivers/infiniband/hw/mlx4/alias_GUID.c +++ b/drivers/infiniband/hw/mlx4/alias_GUID.c @@ -805,8 +805,8 @@ void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev) unsigned long flags; for (i = 0 ; i < dev->num_ports; i++) { - cancel_delayed_work(&dev->sriov.alias_guid.ports_guid[i].alias_guid_work); det = &sriov->alias_guid.ports_guid[i]; + cancel_delayed_work_sync(&det->alias_guid_work); spin_lock_irqsave(&sriov->alias_guid.ag_work_lock, flags); while (!list_empty(&det->cb_list)) { cb_ctx = list_entry(det->cb_list.next, diff --git a/drivers/infiniband/hw/mlx4/cm.c b/drivers/infiniband/hw/mlx4/cm.c index 39a488889fc7..5dc920fe1326 100644 --- a/drivers/infiniband/hw/mlx4/cm.c +++ b/drivers/infiniband/hw/mlx4/cm.c @@ -39,7 +39,7 @@ #include "mlx4_ib.h" -#define CM_CLEANUP_CACHE_TIMEOUT (5 * HZ) +#define CM_CLEANUP_CACHE_TIMEOUT (30 * HZ) struct id_map_entry { struct rb_node node; diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c index 4401be225d64..3c53aa5d5c0c 100644 --- a/drivers/input/keyboard/cap11xx.c +++ b/drivers/input/keyboard/cap11xx.c @@ -75,9 +75,7 @@ struct cap11xx_led { struct cap11xx_priv *priv; struct led_classdev cdev; - struct work_struct work; u32 reg; - enum led_brightness new_brightness; }; #endif @@ -233,30 +231,21 @@ static void cap11xx_input_close(struct input_dev *idev) } #ifdef CONFIG_LEDS_CLASS -static void cap11xx_led_work(struct work_struct *work) +static int cap11xx_led_set(struct led_classdev *cdev, + enum led_brightness value) { - struct cap11xx_led *led = container_of(work, struct cap11xx_led, work); + struct cap11xx_led *led = container_of(cdev, struct cap11xx_led, cdev); struct cap11xx_priv *priv = led->priv; - int value = led->new_brightness; /* - * All LEDs share the same duty cycle as this is a HW limitation. - * Brightness levels per LED are either 0 (OFF) and 1 (ON). + * All LEDs share the same duty cycle as this is a HW + * limitation. Brightness levels per LED are either + * 0 (OFF) and 1 (ON). */ - regmap_update_bits(priv->regmap, CAP11XX_REG_LED_OUTPUT_CONTROL, - BIT(led->reg), value ? BIT(led->reg) : 0); -} - -static void cap11xx_led_set(struct led_classdev *cdev, - enum led_brightness value) -{ - struct cap11xx_led *led = container_of(cdev, struct cap11xx_led, cdev); - - if (led->new_brightness == value) - return; - - led->new_brightness = value; - schedule_work(&led->work); + return regmap_update_bits(priv->regmap, + CAP11XX_REG_LED_OUTPUT_CONTROL, + BIT(led->reg), + value ? BIT(led->reg) : 0); } static int cap11xx_init_leds(struct device *dev, @@ -299,7 +288,7 @@ static int cap11xx_init_leds(struct device *dev, led->cdev.default_trigger = of_get_property(child, "linux,default-trigger", NULL); led->cdev.flags = 0; - led->cdev.brightness_set = cap11xx_led_set; + led->cdev.brightness_set_blocking = cap11xx_led_set; led->cdev.max_brightness = 1; led->cdev.brightness = LED_OFF; @@ -312,8 +301,6 @@ static int cap11xx_init_leds(struct device *dev, led->reg = reg; led->priv = priv; - INIT_WORK(&led->work, cap11xx_led_work); - error = devm_led_classdev_register(dev, &led->cdev); if (error) { of_node_put(child); diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index c64d87442a62..2e12e31f45c5 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -220,7 +220,7 @@ static void matrix_keypad_stop(struct input_dev *dev) keypad->stopped = true; spin_unlock_irq(&keypad->lock); - flush_work(&keypad->work.work); + flush_delayed_work(&keypad->work); /* * matrix_keypad_scan() will leave IRQs enabled; * we should disable them now. diff --git a/drivers/input/keyboard/st-keyscan.c b/drivers/input/keyboard/st-keyscan.c index de7be4f03d91..ebf9f643d910 100644 --- a/drivers/input/keyboard/st-keyscan.c +++ b/drivers/input/keyboard/st-keyscan.c @@ -153,6 +153,8 @@ static int keyscan_probe(struct platform_device *pdev) input_dev->id.bustype = BUS_HOST; + keypad_data->input_dev = input_dev; + error = keypad_matrix_key_parse_dt(keypad_data); if (error) return error; @@ -168,8 +170,6 @@ static int keyscan_probe(struct platform_device *pdev) input_set_drvdata(input_dev, keypad_data); - keypad_data->input_dev = input_dev; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); keypad_data->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(keypad_data->base)) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 9a316ac0d219..ad41c51e84aa 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2597,7 +2597,12 @@ static int map_sg(struct device *dev, struct scatterlist *sglist, /* Everything is mapped - write the right values into s->dma_address */ for_each_sg(sglist, s, nelems, i) { - s->dma_address += address + s->offset; + /* + * Add in the remaining piece of the scatter-gather offset that + * was masked out when we were determining the physical address + * via (sg_phys(s) & PAGE_MASK) earlier. + */ + s->dma_address += address + (s->offset & ~PAGE_MASK); s->dma_length = s->length; } diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index 63110fbbb410..d51734e0c350 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -143,7 +143,7 @@ dmar_alloc_pci_notify_info(struct pci_dev *dev, unsigned long event) for (tmp = dev; tmp; tmp = tmp->bus->self) level++; - size = sizeof(*info) + level * sizeof(struct acpi_dmar_pci_path); + size = sizeof(*info) + level * sizeof(info->path[0]); if (size <= sizeof(dmar_pci_notify_info_buf)) { info = (struct dmar_pci_notify_info *)dmar_pci_notify_info_buf; } else { diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 878e1af97c83..6c86f8b28190 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -1636,6 +1636,9 @@ static void iommu_disable_protect_mem_regions(struct intel_iommu *iommu) u32 pmen; unsigned long flags; + if (!cap_plmr(iommu->cap) && !cap_phmr(iommu->cap)) + return; + raw_spin_lock_irqsave(&iommu->register_lock, flags); pmen = readl(iommu->reg + DMAR_PMEN_REG); pmen &= ~DMA_PMEN_EPM; diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c index d68a552cfe8d..3085b47fac1d 100644 --- a/drivers/iommu/io-pgtable-arm-v7s.c +++ b/drivers/iommu/io-pgtable-arm-v7s.c @@ -207,7 +207,8 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp, if (dma != virt_to_phys(table)) goto out_unmap; } - kmemleak_ignore(table); + if (lvl == 2) + kmemleak_ignore(table); return table; out_unmap: diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c index 05d87f60d929..406bfe618448 100644 --- a/drivers/irqchip/irq-mbigen.c +++ b/drivers/irqchip/irq-mbigen.c @@ -160,6 +160,9 @@ static void mbigen_write_msg(struct msi_desc *desc, struct msi_msg *msg) void __iomem *base = d->chip_data; u32 val; + if (!msg->address_lo && !msg->address_hi) + return; + base += get_mbigen_vec_reg(d->hwirq); val = readl_relaxed(base); diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c index 480c2d7794eb..8feb8e9e29a6 100644 --- a/drivers/isdn/hardware/mISDN/hfcmulti.c +++ b/drivers/isdn/hardware/mISDN/hfcmulti.c @@ -4370,7 +4370,8 @@ setup_pci(struct hfc_multi *hc, struct pci_dev *pdev, if (m->clock2) test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip); - if (ent->device == 0xB410) { + if (ent->vendor == PCI_VENDOR_ID_DIGIUM && + ent->device == PCI_DEVICE_ID_DIGIUM_HFC4S) { test_and_set_bit(HFC_CHIP_B410P, &hc->chip); test_and_set_bit(HFC_CHIP_PCM_MASTER, &hc->chip); test_and_clear_bit(HFC_CHIP_PCM_SLAVE, &hc->chip); diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c index 5377f22ff994..e2655953667c 100644 --- a/drivers/leds/leds-lp55xx-common.c +++ b/drivers/leds/leds-lp55xx-common.c @@ -201,7 +201,7 @@ static void lp55xx_firmware_loaded(const struct firmware *fw, void *context) if (!fw) { dev_err(dev, "firmware request failed\n"); - goto out; + return; } /* handling firmware data is chip dependent */ @@ -214,9 +214,9 @@ static void lp55xx_firmware_loaded(const struct firmware *fw, void *context) mutex_unlock(&chip->lock); -out: /* firmware should be released for other channel use */ release_firmware(chip->fw); + chip->fw = NULL; } static int lp55xx_request_firmware(struct lp55xx_chip *chip) diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index 5a5c1f1bd8a5..463ce6757338 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -215,7 +215,9 @@ STORE(__cached_dev) d_strtoul(writeback_rate_d_term); d_strtoul_nonzero(writeback_rate_p_term_inverse); - d_strtoi_h(sequential_cutoff); + sysfs_strtoul_clamp(sequential_cutoff, + dc->sequential_cutoff, + 0, UINT_MAX); d_strtoi_h(readahead); if (attr == &sysfs_clear_stats) @@ -645,8 +647,17 @@ STORE(__bch_cache_set) c->error_limit = strtoul_or_return(buf) << IO_ERROR_SHIFT; /* See count_io_errors() for why 88 */ - if (attr == &sysfs_io_error_halflife) - c->error_decay = strtoul_or_return(buf) / 88; + if (attr == &sysfs_io_error_halflife) { + unsigned long v = 0; + ssize_t ret; + + ret = strtoul_safe_clamp(buf, v, 0, UINT_MAX); + if (!ret) { + c->error_decay = v / 88; + return size; + } + return ret; + } sysfs_strtoul(journal_delay_ms, c->journal_delay_ms); sysfs_strtoul(verify, c->verify); diff --git a/drivers/md/bcache/sysfs.h b/drivers/md/bcache/sysfs.h index 0526fe92a683..e7a3c12aa66f 100644 --- a/drivers/md/bcache/sysfs.h +++ b/drivers/md/bcache/sysfs.h @@ -80,9 +80,16 @@ do { \ #define sysfs_strtoul_clamp(file, var, min, max) \ do { \ - if (attr == &sysfs_ ## file) \ - return strtoul_safe_clamp(buf, var, min, max) \ - ?: (ssize_t) size; \ + if (attr == &sysfs_ ## file) { \ + unsigned long v = 0; \ + ssize_t ret; \ + ret = strtoul_safe_clamp(buf, v, min, max); \ + if (!ret) { \ + var = v; \ + return size; \ + } \ + return ret; \ + } \ } while (0) #define strtoul_or_return(cp) \ diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h index cdf8d253209e..6fb6dd600970 100644 --- a/drivers/md/bcache/writeback.h +++ b/drivers/md/bcache/writeback.h @@ -68,6 +68,9 @@ static inline bool should_writeback(struct cached_dev *dc, struct bio *bio, in_use > CUTOFF_WRITEBACK_SYNC) return false; + if (bio_op(bio) == REQ_OP_DISCARD) + return false; + if (dc->partial_stripes_expensive && bcache_dev_stripe_dirty(dc, bio->bi_iter.bi_sector, bio_sectors(bio))) diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 345f4d81ba07..23a7e108352a 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -3295,6 +3295,13 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv) as.argc = argc; as.argv = argv; + /* make sure metadata and data are different devices */ + if (!strcmp(argv[0], argv[1])) { + ti->error = "Error setting metadata or data device"; + r = -EINVAL; + goto out_unlock; + } + /* * Set default pool features. */ @@ -4177,6 +4184,12 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv) tc->sort_bio_list = RB_ROOT; if (argc == 3) { + if (!strcmp(argv[0], argv[2])) { + ti->error = "Error setting origin device"; + r = -EINVAL; + goto bad_origin_dev; + } + r = dm_get_device(ti, argv[2], FMODE_READ, &origin_dev); if (r) { ti->error = "Error opening origin device"; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index b62e6ab66b31..717787d09e0f 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -3798,6 +3798,8 @@ static int raid10_run(struct mddev *mddev) set_bit(MD_RECOVERY_RUNNING, &mddev->recovery); mddev->sync_thread = md_register_thread(md_do_sync, mddev, "reshape"); + if (!mddev->sync_thread) + goto out_free_conf; } return 0; @@ -4489,7 +4491,6 @@ bio_full: atomic_inc(&r10_bio->remaining); read_bio->bi_next = NULL; generic_make_request(read_bio); - sector_nr += nr_sectors; sectors_done += nr_sectors; if (sector_nr <= last) goto read_more; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 160c8a0656f0..1483fff15cae 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -6979,6 +6979,8 @@ static int raid5_run(struct mddev *mddev) set_bit(MD_RECOVERY_RUNNING, &mddev->recovery); mddev->sync_thread = md_register_thread(md_do_sync, mddev, "reshape"); + if (!mddev->sync_thread) + goto abort; } /* Ok, everything is just fine now */ diff --git a/drivers/media/i2c/mt9m111.c b/drivers/media/i2c/mt9m111.c index 72e71b762827..a6145877bd00 100644 --- a/drivers/media/i2c/mt9m111.c +++ b/drivers/media/i2c/mt9m111.c @@ -974,6 +974,8 @@ static int mt9m111_probe(struct i2c_client *client, mt9m111->rect.top = MT9M111_MIN_DARK_ROWS; mt9m111->rect.width = MT9M111_MAX_WIDTH; mt9m111->rect.height = MT9M111_MAX_HEIGHT; + mt9m111->width = mt9m111->rect.width; + mt9m111->height = mt9m111->rect.height; mt9m111->fmt = &mt9m111_colour_fmts[0]; mt9m111->lastpage = -1; mutex_init(&mt9m111->power_lock); diff --git a/drivers/media/platform/mx2_emmaprp.c b/drivers/media/platform/mx2_emmaprp.c index e68d271b10af..8354ad20865a 100644 --- a/drivers/media/platform/mx2_emmaprp.c +++ b/drivers/media/platform/mx2_emmaprp.c @@ -288,7 +288,7 @@ static void emmaprp_device_run(void *priv) { struct emmaprp_ctx *ctx = priv; struct emmaprp_q_data *s_q_data, *d_q_data; - struct vb2_buffer *src_buf, *dst_buf; + struct vb2_v4l2_buffer *src_buf, *dst_buf; struct emmaprp_dev *pcdev = ctx->dev; unsigned int s_width, s_height; unsigned int d_width, d_height; @@ -308,8 +308,8 @@ static void emmaprp_device_run(void *priv) d_height = d_q_data->height; d_size = d_width * d_height; - p_in = vb2_dma_contig_plane_dma_addr(src_buf, 0); - p_out = vb2_dma_contig_plane_dma_addr(dst_buf, 0); + p_in = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0); + p_out = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0); if (!p_in || !p_out) { v4l2_err(&pcdev->v4l2_dev, "Acquiring kernel pointers to buffers failed\n"); diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c index 62c0dec30b59..5f6ccf492111 100644 --- a/drivers/media/platform/s5p-g2d/g2d.c +++ b/drivers/media/platform/s5p-g2d/g2d.c @@ -498,7 +498,7 @@ static void device_run(void *prv) { struct g2d_ctx *ctx = prv; struct g2d_dev *dev = ctx->dev; - struct vb2_buffer *src, *dst; + struct vb2_v4l2_buffer *src, *dst; unsigned long flags; u32 cmd = 0; @@ -513,10 +513,10 @@ static void device_run(void *prv) spin_lock_irqsave(&dev->ctrl_lock, flags); g2d_set_src_size(dev, &ctx->in); - g2d_set_src_addr(dev, vb2_dma_contig_plane_dma_addr(src, 0)); + g2d_set_src_addr(dev, vb2_dma_contig_plane_dma_addr(&src->vb2_buf, 0)); g2d_set_dst_size(dev, &ctx->out); - g2d_set_dst_addr(dev, vb2_dma_contig_plane_dma_addr(dst, 0)); + g2d_set_dst_addr(dev, vb2_dma_contig_plane_dma_addr(&dst->vb2_buf, 0)); g2d_set_rop4(dev, ctx->rop); g2d_set_flip(dev, ctx->flip); diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c index 1da2c94e1dca..c89922fb42ce 100644 --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c @@ -789,14 +789,14 @@ static void skip(struct s5p_jpeg_buffer *buf, long len); static void exynos4_jpeg_parse_decode_h_tbl(struct s5p_jpeg_ctx *ctx) { struct s5p_jpeg *jpeg = ctx->jpeg; - struct vb2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + struct vb2_v4l2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); struct s5p_jpeg_buffer jpeg_buffer; unsigned int word; int c, x, components; jpeg_buffer.size = 2; /* Ls */ jpeg_buffer.data = - (unsigned long)vb2_plane_vaddr(vb, 0) + ctx->out_q.sos + 2; + (unsigned long)vb2_plane_vaddr(&vb->vb2_buf, 0) + ctx->out_q.sos + 2; jpeg_buffer.curr = 0; word = 0; @@ -826,14 +826,14 @@ static void exynos4_jpeg_parse_decode_h_tbl(struct s5p_jpeg_ctx *ctx) static void exynos4_jpeg_parse_huff_tbl(struct s5p_jpeg_ctx *ctx) { struct s5p_jpeg *jpeg = ctx->jpeg; - struct vb2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + struct vb2_v4l2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); struct s5p_jpeg_buffer jpeg_buffer; unsigned int word; int c, i, n, j; for (j = 0; j < ctx->out_q.dht.n; ++j) { jpeg_buffer.size = ctx->out_q.dht.len[j]; - jpeg_buffer.data = (unsigned long)vb2_plane_vaddr(vb, 0) + + jpeg_buffer.data = (unsigned long)vb2_plane_vaddr(&vb->vb2_buf, 0) + ctx->out_q.dht.marker[j]; jpeg_buffer.curr = 0; @@ -885,13 +885,13 @@ static void exynos4_jpeg_parse_huff_tbl(struct s5p_jpeg_ctx *ctx) static void exynos4_jpeg_parse_decode_q_tbl(struct s5p_jpeg_ctx *ctx) { struct s5p_jpeg *jpeg = ctx->jpeg; - struct vb2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + struct vb2_v4l2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); struct s5p_jpeg_buffer jpeg_buffer; int c, x, components; jpeg_buffer.size = ctx->out_q.sof_len; jpeg_buffer.data = - (unsigned long)vb2_plane_vaddr(vb, 0) + ctx->out_q.sof; + (unsigned long)vb2_plane_vaddr(&vb->vb2_buf, 0) + ctx->out_q.sof; jpeg_buffer.curr = 0; skip(&jpeg_buffer, 5); /* P, Y, X */ @@ -916,14 +916,14 @@ static void exynos4_jpeg_parse_decode_q_tbl(struct s5p_jpeg_ctx *ctx) static void exynos4_jpeg_parse_q_tbl(struct s5p_jpeg_ctx *ctx) { struct s5p_jpeg *jpeg = ctx->jpeg; - struct vb2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + struct vb2_v4l2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); struct s5p_jpeg_buffer jpeg_buffer; unsigned int word; int c, i, j; for (j = 0; j < ctx->out_q.dqt.n; ++j) { jpeg_buffer.size = ctx->out_q.dqt.len[j]; - jpeg_buffer.data = (unsigned long)vb2_plane_vaddr(vb, 0) + + jpeg_buffer.data = (unsigned long)vb2_plane_vaddr(&vb->vb2_buf, 0) + ctx->out_q.dqt.marker[j]; jpeg_buffer.curr = 0; @@ -1264,13 +1264,16 @@ static int s5p_jpeg_querycap(struct file *file, void *priv, return 0; } -static int enum_fmt(struct s5p_jpeg_fmt *sjpeg_formats, int n, +static int enum_fmt(struct s5p_jpeg_ctx *ctx, + struct s5p_jpeg_fmt *sjpeg_formats, int n, struct v4l2_fmtdesc *f, u32 type) { int i, num = 0; + unsigned int fmt_ver_flag = ctx->jpeg->variant->fmt_ver_flag; for (i = 0; i < n; ++i) { - if (sjpeg_formats[i].flags & type) { + if (sjpeg_formats[i].flags & type && + sjpeg_formats[i].flags & fmt_ver_flag) { /* index-th format of type type found ? */ if (num == f->index) break; @@ -1297,11 +1300,11 @@ static int s5p_jpeg_enum_fmt_vid_cap(struct file *file, void *priv, struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); if (ctx->mode == S5P_JPEG_ENCODE) - return enum_fmt(sjpeg_formats, SJPEG_NUM_FORMATS, f, + return enum_fmt(ctx, sjpeg_formats, SJPEG_NUM_FORMATS, f, SJPEG_FMT_FLAG_ENC_CAPTURE); - return enum_fmt(sjpeg_formats, SJPEG_NUM_FORMATS, f, - SJPEG_FMT_FLAG_DEC_CAPTURE); + return enum_fmt(ctx, sjpeg_formats, SJPEG_NUM_FORMATS, f, + SJPEG_FMT_FLAG_DEC_CAPTURE); } static int s5p_jpeg_enum_fmt_vid_out(struct file *file, void *priv, @@ -1310,11 +1313,11 @@ static int s5p_jpeg_enum_fmt_vid_out(struct file *file, void *priv, struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); if (ctx->mode == S5P_JPEG_ENCODE) - return enum_fmt(sjpeg_formats, SJPEG_NUM_FORMATS, f, + return enum_fmt(ctx, sjpeg_formats, SJPEG_NUM_FORMATS, f, SJPEG_FMT_FLAG_ENC_OUTPUT); - return enum_fmt(sjpeg_formats, SJPEG_NUM_FORMATS, f, - SJPEG_FMT_FLAG_DEC_OUTPUT); + return enum_fmt(ctx, sjpeg_formats, SJPEG_NUM_FORMATS, f, + SJPEG_FMT_FLAG_DEC_OUTPUT); } static struct s5p_jpeg_q_data *get_q_data(struct s5p_jpeg_ctx *ctx, @@ -2027,15 +2030,15 @@ static void s5p_jpeg_device_run(void *priv) { struct s5p_jpeg_ctx *ctx = priv; struct s5p_jpeg *jpeg = ctx->jpeg; - struct vb2_buffer *src_buf, *dst_buf; + struct vb2_v4l2_buffer *src_buf, *dst_buf; unsigned long src_addr, dst_addr, flags; spin_lock_irqsave(&ctx->jpeg->slock, flags); src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); - src_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0); - dst_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0); + src_addr = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0); + dst_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0); s5p_jpeg_reset(jpeg->regs); s5p_jpeg_poweron(jpeg->regs); @@ -2108,7 +2111,7 @@ static void exynos4_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx) { struct s5p_jpeg *jpeg = ctx->jpeg; struct s5p_jpeg_fmt *fmt; - struct vb2_buffer *vb; + struct vb2_v4l2_buffer *vb; struct s5p_jpeg_addr jpeg_addr = {}; u32 pix_size, padding_bytes = 0; @@ -2127,7 +2130,7 @@ static void exynos4_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx) vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); } - jpeg_addr.y = vb2_dma_contig_plane_dma_addr(vb, 0); + jpeg_addr.y = vb2_dma_contig_plane_dma_addr(&vb->vb2_buf, 0); if (fmt->colplanes == 2) { jpeg_addr.cb = jpeg_addr.y + pix_size - padding_bytes; @@ -2145,7 +2148,7 @@ static void exynos4_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx) static void exynos4_jpeg_set_jpeg_addr(struct s5p_jpeg_ctx *ctx) { struct s5p_jpeg *jpeg = ctx->jpeg; - struct vb2_buffer *vb; + struct vb2_v4l2_buffer *vb; unsigned int jpeg_addr = 0; if (ctx->mode == S5P_JPEG_ENCODE) @@ -2153,7 +2156,7 @@ static void exynos4_jpeg_set_jpeg_addr(struct s5p_jpeg_ctx *ctx) else vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); - jpeg_addr = vb2_dma_contig_plane_dma_addr(vb, 0); + jpeg_addr = vb2_dma_contig_plane_dma_addr(&vb->vb2_buf, 0); if (jpeg->variant->version == SJPEG_EXYNOS5433 && ctx->mode == S5P_JPEG_DECODE) jpeg_addr += ctx->out_q.sos; @@ -2268,7 +2271,7 @@ static void exynos3250_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx) { struct s5p_jpeg *jpeg = ctx->jpeg; struct s5p_jpeg_fmt *fmt; - struct vb2_buffer *vb; + struct vb2_v4l2_buffer *vb; struct s5p_jpeg_addr jpeg_addr = {}; u32 pix_size; @@ -2282,7 +2285,7 @@ static void exynos3250_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx) fmt = ctx->cap_q.fmt; } - jpeg_addr.y = vb2_dma_contig_plane_dma_addr(vb, 0); + jpeg_addr.y = vb2_dma_contig_plane_dma_addr(&vb->vb2_buf, 0); if (fmt->colplanes == 2) { jpeg_addr.cb = jpeg_addr.y + pix_size; @@ -2300,7 +2303,7 @@ static void exynos3250_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx) static void exynos3250_jpeg_set_jpeg_addr(struct s5p_jpeg_ctx *ctx) { struct s5p_jpeg *jpeg = ctx->jpeg; - struct vb2_buffer *vb; + struct vb2_v4l2_buffer *vb; unsigned int jpeg_addr = 0; if (ctx->mode == S5P_JPEG_ENCODE) @@ -2308,7 +2311,7 @@ static void exynos3250_jpeg_set_jpeg_addr(struct s5p_jpeg_ctx *ctx) else vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); - jpeg_addr = vb2_dma_contig_plane_dma_addr(vb, 0); + jpeg_addr = vb2_dma_contig_plane_dma_addr(&vb->vb2_buf, 0); exynos3250_jpeg_jpgadr(jpeg->regs, jpeg_addr); } diff --git a/drivers/media/platform/sh_veu.c b/drivers/media/platform/sh_veu.c index 15a562af13c7..a4f593220ef0 100644 --- a/drivers/media/platform/sh_veu.c +++ b/drivers/media/platform/sh_veu.c @@ -276,13 +276,13 @@ static void sh_veu_process(struct sh_veu_dev *veu, static void sh_veu_device_run(void *priv) { struct sh_veu_dev *veu = priv; - struct vb2_buffer *src_buf, *dst_buf; + struct vb2_v4l2_buffer *src_buf, *dst_buf; src_buf = v4l2_m2m_next_src_buf(veu->m2m_ctx); dst_buf = v4l2_m2m_next_dst_buf(veu->m2m_ctx); if (src_buf && dst_buf) - sh_veu_process(veu, src_buf, dst_buf); + sh_veu_process(veu, &src_buf->vb2_buf, &dst_buf->vb2_buf); } /* ========== video ioctls ========== */ diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c index 20397aba6849..d92967e2e385 100644 --- a/drivers/media/usb/uvc/uvc_ctrl.c +++ b/drivers/media/usb/uvc/uvc_ctrl.c @@ -1203,7 +1203,7 @@ static void uvc_ctrl_fill_event(struct uvc_video_chain *chain, __uvc_query_v4l2_ctrl(chain, ctrl, mapping, &v4l2_ctrl); - memset(ev->reserved, 0, sizeof(ev->reserved)); + memset(ev, 0, sizeof(*ev)); ev->type = V4L2_EVENT_CTRL; ev->id = v4l2_ctrl.id; ev->u.ctrl.value = value; diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index 48503f30b3a2..dcca723f7155 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -638,6 +638,14 @@ void uvc_video_clock_update(struct uvc_streaming *stream, if (!uvc_hw_timestamps_param) return; + /* + * We will get called from __vb2_queue_cancel() if there are buffers + * done but not dequeued by the user, but the sample array has already + * been released at that time. Just bail out in that case. + */ + if (!clock->samples) + return; + spin_lock_irqsave(&clock->lock, flags); if (clock->count < clock->size) diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index bd6884223a0d..c56d649fa7da 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1231,7 +1231,7 @@ static u32 user_flags(const struct v4l2_ctrl *ctrl) static void fill_event(struct v4l2_event *ev, struct v4l2_ctrl *ctrl, u32 changes) { - memset(ev->reserved, 0, sizeof(ev->reserved)); + memset(ev, 0, sizeof(*ev)); ev->type = V4L2_EVENT_CTRL; ev->id = ctrl->id; ev->u.ctrl.changes = changes; diff --git a/drivers/media/v4l2-core/videobuf2-v4l2.c b/drivers/media/v4l2-core/videobuf2-v4l2.c index 52ef8833f6b6..7e45da4d52e1 100644 --- a/drivers/media/v4l2-core/videobuf2-v4l2.c +++ b/drivers/media/v4l2-core/videobuf2-v4l2.c @@ -146,7 +146,6 @@ static void vb2_warn_zero_bytesused(struct vb2_buffer *vb) return; check_once = true; - WARN_ON(1); pr_warn("use of bytesused == 0 is deprecated and will be removed in the future,\n"); if (vb->vb2_queue->allow_zero_bytesused) diff --git a/drivers/misc/lkdtm.h b/drivers/misc/lkdtm.h index fdf954c2107f..6abc97b245e4 100644 --- a/drivers/misc/lkdtm.h +++ b/drivers/misc/lkdtm.h @@ -40,7 +40,9 @@ void lkdtm_EXEC_KMALLOC(void); void lkdtm_EXEC_VMALLOC(void); void lkdtm_EXEC_RODATA(void); void lkdtm_EXEC_USERSPACE(void); +void lkdtm_EXEC_NULL(void); void lkdtm_ACCESS_USERSPACE(void); +void lkdtm_ACCESS_NULL(void); /* lkdtm_rodata.c */ void lkdtm_rodata_do_nothing(void); diff --git a/drivers/misc/lkdtm_core.c b/drivers/misc/lkdtm_core.c index b2989f2d3126..035e51bea450 100644 --- a/drivers/misc/lkdtm_core.c +++ b/drivers/misc/lkdtm_core.c @@ -214,7 +214,9 @@ struct crashtype crashtypes[] = { CRASHTYPE(EXEC_VMALLOC), CRASHTYPE(EXEC_RODATA), CRASHTYPE(EXEC_USERSPACE), + CRASHTYPE(EXEC_NULL), CRASHTYPE(ACCESS_USERSPACE), + CRASHTYPE(ACCESS_NULL), CRASHTYPE(WRITE_RO), CRASHTYPE(WRITE_RO_AFTER_INIT), CRASHTYPE(WRITE_KERN), diff --git a/drivers/misc/lkdtm_perms.c b/drivers/misc/lkdtm_perms.c index 45f1c0f96612..1a9dcdaa95f0 100644 --- a/drivers/misc/lkdtm_perms.c +++ b/drivers/misc/lkdtm_perms.c @@ -160,6 +160,11 @@ void lkdtm_EXEC_USERSPACE(void) vm_munmap(user_addr, PAGE_SIZE); } +void lkdtm_EXEC_NULL(void) +{ + execute_location(NULL, CODE_AS_IS); +} + void lkdtm_ACCESS_USERSPACE(void) { unsigned long user_addr, tmp = 0; @@ -191,6 +196,19 @@ void lkdtm_ACCESS_USERSPACE(void) vm_munmap(user_addr, PAGE_SIZE); } +void lkdtm_ACCESS_NULL(void) +{ + unsigned long tmp; + unsigned long *ptr = (unsigned long *)NULL; + + pr_info("attempting bad read at %px\n", ptr); + tmp = *ptr; + tmp += 0xc0dec0de; + + pr_info("attempting bad write at %px\n", ptr); + *ptr = tmp; +} + void __init lkdtm_perms_init(void) { /* Make sure we can write to __ro_after_init values during __init */ diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c index 8fa478c3b0db..619457b90dc7 100644 --- a/drivers/mmc/host/davinci_mmc.c +++ b/drivers/mmc/host/davinci_mmc.c @@ -1120,7 +1120,7 @@ static inline void mmc_davinci_cpufreq_deregister(struct mmc_davinci_host *host) { } #endif -static void __init init_mmcsd_host(struct mmc_davinci_host *host) +static void init_mmcsd_host(struct mmc_davinci_host *host) { mmc_davinci_reset_ctrl(host, 1); diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index a4bf14e21b5e..21dfce21aa63 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -920,7 +920,7 @@ static inline void set_cmd_timeout(struct mmc_omap_host *host, struct mmc_reques reg &= ~(1 << 5); OMAP_MMC_WRITE(host, SDIO, reg); /* Set maximum timeout */ - OMAP_MMC_WRITE(host, CTO, 0xff); + OMAP_MMC_WRITE(host, CTO, 0xfd); } static inline void set_data_timeout(struct mmc_omap_host *host, struct mmc_request *req) diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index c763b404510f..3e139692fe8f 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -181,7 +181,7 @@ static void pxamci_dma_irq(void *param); static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) { struct dma_async_tx_descriptor *tx; - enum dma_data_direction direction; + enum dma_transfer_direction direction; struct dma_slave_config config; struct dma_chan *chan; unsigned int nob = data->blocks; diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index 700567603107..0fc1f73b0d23 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -675,7 +675,7 @@ static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host, return false; } -static void tmio_mmc_sdio_irq(int irq, void *devid) +static bool tmio_mmc_sdio_irq(int irq, void *devid) { struct tmio_mmc_host *host = devid; struct mmc_host *mmc = host->mmc; @@ -684,7 +684,7 @@ static void tmio_mmc_sdio_irq(int irq, void *devid) unsigned int sdio_status; if (!(pdata->flags & TMIO_MMC_SDIO_IRQ)) - return; + return false; status = sd_ctrl_read16(host, CTL_SDIO_STATUS); ireg = status & TMIO_SDIO_MASK_ALL & ~host->sdcard_irq_mask; @@ -697,6 +697,8 @@ static void tmio_mmc_sdio_irq(int irq, void *devid) if (mmc->caps & MMC_CAP_SDIO_IRQ && ireg & TMIO_SDIO_STAT_IOIRQ) mmc_signal_sdio_irq(mmc); + + return ireg; } irqreturn_t tmio_mmc_irq(int irq, void *devid) @@ -718,9 +720,10 @@ irqreturn_t tmio_mmc_irq(int irq, void *devid) if (__tmio_mmc_sdcard_irq(host, ireg, status)) return IRQ_HANDLED; - tmio_mmc_sdio_irq(irq, devid); + if (tmio_mmc_sdio_irq(irq, devid)) + return IRQ_HANDLED; - return IRQ_HANDLED; + return IRQ_NONE; } EXPORT_SYMBOL(tmio_mmc_irq); diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c index 7f64a76acd37..ebfbaf8597f4 100644 --- a/drivers/net/dsa/qca8k.c +++ b/drivers/net/dsa/qca8k.c @@ -630,22 +630,6 @@ qca8k_adjust_link(struct dsa_switch *ds, int port, struct phy_device *phy) qca8k_port_set_status(priv, port, 1); } -static int -qca8k_phy_read(struct dsa_switch *ds, int phy, int regnum) -{ - struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; - - return mdiobus_read(priv->bus, phy, regnum); -} - -static int -qca8k_phy_write(struct dsa_switch *ds, int phy, int regnum, u16 val) -{ - struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; - - return mdiobus_write(priv->bus, phy, regnum, val); -} - static void qca8k_get_strings(struct dsa_switch *ds, int port, uint8_t *data) { @@ -961,8 +945,6 @@ static struct dsa_switch_ops qca8k_switch_ops = { .setup = qca8k_setup, .adjust_link = qca8k_adjust_link, .get_strings = qca8k_get_strings, - .phy_read = qca8k_phy_read, - .phy_write = qca8k_phy_write, .get_ethtool_stats = qca8k_get_ethtool_stats, .get_sset_count = qca8k_get_sset_count, .get_eee = qca8k_get_eee, diff --git a/drivers/net/ethernet/8390/mac8390.c b/drivers/net/ethernet/8390/mac8390.c index b9283901136e..0fdc9ad32a2e 100644 --- a/drivers/net/ethernet/8390/mac8390.c +++ b/drivers/net/ethernet/8390/mac8390.c @@ -156,8 +156,6 @@ static void dayna_block_output(struct net_device *dev, int count, #define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) #define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) -#define memcmp_withio(a, b, c) memcmp((a), (void *)(b), (c)) - /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page); @@ -237,19 +235,26 @@ static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev) static enum mac8390_access __init mac8390_testio(volatile unsigned long membase) { - unsigned long outdata = 0xA5A0B5B0; - unsigned long indata = 0x00000000; + u32 outdata = 0xA5A0B5B0; + u32 indata = 0; + /* Try writing 32 bits */ - memcpy_toio(membase, &outdata, 4); - /* Now compare them */ - if (memcmp_withio(&outdata, membase, 4) == 0) + nubus_writel(outdata, membase); + /* Now read it back */ + indata = nubus_readl(membase); + if (outdata == indata) return ACCESS_32; + + outdata = 0xC5C0D5D0; + indata = 0; + /* Write 16 bit output */ word_memcpy_tocard(membase, &outdata, 4); /* Now read it back */ word_memcpy_fromcard(&indata, membase, 4); if (outdata == indata) return ACCESS_16; + return ACCESS_UNKNOWN; } diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c index 2ff465848b65..097a0bf592ab 100644 --- a/drivers/net/ethernet/atheros/atlx/atl2.c +++ b/drivers/net/ethernet/atheros/atlx/atl2.c @@ -1338,13 +1338,11 @@ static int atl2_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *netdev; struct atl2_adapter *adapter; - static int cards_found; + static int cards_found = 0; unsigned long mmio_start; int mmio_len; int err; - cards_found = 0; - err = pci_enable_device(pdev); if (err) return err; diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 53a506b0d790..95874c10c23b 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -104,6 +104,10 @@ static int bcm_sysport_set_rx_csum(struct net_device *dev, priv->rx_chk_en = !!(wanted & NETIF_F_RXCSUM); reg = rxchk_readl(priv, RXCHK_CONTROL); + /* Clear L2 header checks, which would prevent BPDUs + * from being received. + */ + reg &= ~RXCHK_L2_HDR_DIS; if (priv->rx_chk_en) reg |= RXCHK_EN; else diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 737f0f6f4075..45ea2718c65d 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -959,6 +959,8 @@ static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, tpa_info = &rxr->rx_tpa[agg_id]; if (unlikely(cons != rxr->rx_next_cons)) { + netdev_warn(bp->dev, "TPA cons %x != expected cons %x\n", + cons, rxr->rx_next_cons); bnxt_sched_reset(bp, rxr); return; } @@ -1377,14 +1379,16 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons, } cons = rxcmp->rx_cmp_opaque; - rx_buf = &rxr->rx_buf_ring[cons]; - data = rx_buf->data; if (unlikely(cons != rxr->rx_next_cons)) { int rc1 = bnxt_discard_rx(bp, bnapi, raw_cons, rxcmp); + netdev_warn(bp->dev, "RX cons %x != expected cons %x\n", + cons, rxr->rx_next_cons); bnxt_sched_reset(bp, rxr); return rc1; } + rx_buf = &rxr->rx_buf_ring[cons]; + data = rx_buf->data; prefetch(data); agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) & RX_CMP_AGG_BUFS) >> @@ -1400,11 +1404,17 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons, rx_buf->data = NULL; if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) { + u32 rx_err = le32_to_cpu(rxcmp1->rx_cmp_cfa_code_errors_v2); + bnxt_reuse_rx_data(rxr, cons, data); if (agg_bufs) bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs); rc = -EIO; + if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) { + netdev_warn(bp->dev, "RX buffer error %x\n", rx_err); + bnxt_sched_reset(bp, rxr); + } goto next_rx; } diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c index da142f6bd0c3..18ddd243dfa1 100644 --- a/drivers/net/ethernet/cavium/thunder/nic_main.c +++ b/drivers/net/ethernet/cavium/thunder/nic_main.c @@ -999,7 +999,7 @@ static void nic_handle_mbx_intr(struct nicpf *nic, int vf) case NIC_MBOX_MSG_CFG_DONE: /* Last message of VF config msg sequence */ nic_enable_vf(nic, vf, true); - goto unlock; + break; case NIC_MBOX_MSG_SHUTDOWN: /* First msg in VF teardown sequence */ if (vf >= nic->num_vf_en) diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c index c75d4ea9342b..71f228cece03 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c @@ -162,6 +162,17 @@ static int nicvf_check_pf_ready(struct nicvf *nic) return 1; } +static void nicvf_send_cfg_done(struct nicvf *nic) +{ + union nic_mbx mbx = {}; + + mbx.msg.msg = NIC_MBOX_MSG_CFG_DONE; + if (nicvf_send_msg_to_pf(nic, &mbx)) { + netdev_err(nic->netdev, + "PF didn't respond to CFG DONE msg\n"); + } +} + static void nicvf_read_bgx_stats(struct nicvf *nic, struct bgx_stats_msg *bgx) { if (bgx->rx) @@ -1178,7 +1189,6 @@ int nicvf_open(struct net_device *netdev) struct nicvf *nic = netdev_priv(netdev); struct queue_set *qs = nic->qs; struct nicvf_cq_poll *cq_poll = NULL; - union nic_mbx mbx = {}; netif_carrier_off(netdev); @@ -1267,8 +1277,7 @@ int nicvf_open(struct net_device *netdev) nicvf_enable_intr(nic, NICVF_INTR_RBDR, qidx); /* Send VF config done msg to PF */ - mbx.msg.msg = NIC_MBOX_MSG_CFG_DONE; - nicvf_write_to_mbx(nic, &mbx); + nicvf_send_cfg_done(nic); return 0; cleanup: diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index 89acf7bc4cf9..b73d9ba9496c 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -120,7 +120,7 @@ static void enic_init_affinity_hint(struct enic *enic) for (i = 0; i < enic->intr_count; i++) { if (enic_is_err_intr(enic, i) || enic_is_notify_intr(enic, i) || - (enic->msix[i].affinity_mask && + (cpumask_available(enic->msix[i].affinity_mask) && !cpumask_empty(enic->msix[i].affinity_mask))) continue; if (zalloc_cpumask_var(&enic->msix[i].affinity_mask, @@ -149,7 +149,7 @@ static void enic_set_affinity_hint(struct enic *enic) for (i = 0; i < enic->intr_count; i++) { if (enic_is_err_intr(enic, i) || enic_is_notify_intr(enic, i) || - !enic->msix[i].affinity_mask || + !cpumask_available(enic->msix[i].affinity_mask) || cpumask_empty(enic->msix[i].affinity_mask)) continue; err = irq_set_affinity_hint(enic->msix_entry[i].vector, @@ -162,7 +162,7 @@ static void enic_set_affinity_hint(struct enic *enic) for (i = 0; i < enic->wq_count; i++) { int wq_intr = enic_msix_wq_intr(enic, i); - if (enic->msix[wq_intr].affinity_mask && + if (cpumask_available(enic->msix[wq_intr].affinity_mask) && !cpumask_empty(enic->msix[wq_intr].affinity_mask)) netif_set_xps_queue(enic->netdev, enic->msix[wq_intr].affinity_mask, diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c index 5bb019d49409..551b2a9ebf0f 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c @@ -2820,6 +2820,7 @@ int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, bool dereset) dsaf_dev = dev_get_drvdata(&pdev->dev); if (!dsaf_dev) { dev_err(&pdev->dev, "dsaf_dev is NULL\n"); + put_device(&pdev->dev); return -ENODEV; } @@ -2827,6 +2828,7 @@ int hns_dsaf_roce_reset(struct fwnode_handle *dsaf_fwnode, bool dereset) if (AE_IS_VER1(dsaf_dev->dsaf_ver)) { dev_err(dsaf_dev->dev, "%s v1 chip doesn't support RoCE!\n", dsaf_dev->ae_dev.name); + put_device(&pdev->dev); return -ENODEV; } diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 6855b3380a83..8bbedfc9c48f 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -2121,7 +2121,7 @@ static int e1000_request_msix(struct e1000_adapter *adapter) if (strlen(netdev->name) < (IFNAMSIZ - 5)) snprintf(adapter->rx_ring->name, sizeof(adapter->rx_ring->name) - 1, - "%s-rx-0", netdev->name); + "%.14s-rx-0", netdev->name); else memcpy(adapter->rx_ring->name, netdev->name, IFNAMSIZ); err = request_irq(adapter->msix_entries[vector].vector, @@ -2137,7 +2137,7 @@ static int e1000_request_msix(struct e1000_adapter *adapter) if (strlen(netdev->name) < (IFNAMSIZ - 5)) snprintf(adapter->tx_ring->name, sizeof(adapter->tx_ring->name) - 1, - "%s-tx-0", netdev->name); + "%.14s-tx-0", netdev->name); else memcpy(adapter->tx_ring->name, netdev->name, IFNAMSIZ); err = request_irq(adapter->msix_entries[vector].vector, @@ -5291,8 +5291,13 @@ static void e1000_watchdog_task(struct work_struct *work) /* 8000ES2LAN requires a Rx packet buffer work-around * on link down event; reset the controller to flush * the Rx packet buffer. + * + * If the link is lost the controller stops DMA, but + * if there is queued Tx work it cannot be done. So + * reset the controller to flush the Tx packet buffers. */ - if (adapter->flags & FLAG_RX_NEEDS_RESTART) + if ((adapter->flags & FLAG_RX_NEEDS_RESTART) || + e1000_desc_unused(tx_ring) + 1 < tx_ring->count) adapter->flags |= FLAG_RESTART_NOW; else pm_schedule_suspend(netdev->dev.parent, @@ -5315,14 +5320,6 @@ link_up: adapter->gotc_old = adapter->stats.gotc; spin_unlock(&adapter->stats64_lock); - /* If the link is lost the controller stops DMA, but - * if there is queued Tx work it cannot be done. So - * reset the controller to flush the Tx packet buffers. - */ - if (!netif_carrier_ok(netdev) && - (e1000_desc_unused(tx_ring) + 1 < tx_ring->count)) - adapter->flags |= FLAG_RESTART_NOW; - /* If reset is necessary, do it outside of interrupt context. */ if (adapter->flags & FLAG_RESTART_NOW) { schedule_work(&adapter->reset_task); diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c index 5b12022adf1f..526d07e02bbc 100644 --- a/drivers/net/ethernet/marvell/mv643xx_eth.c +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -2886,7 +2886,7 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev) ret = mv643xx_eth_shared_of_probe(pdev); if (ret) - return ret; + goto err_put_clk; pd = dev_get_platdata(&pdev->dev); msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ? @@ -2894,6 +2894,11 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev) infer_hw_params(msp); return 0; + +err_put_clk: + if (!IS_ERR(msp->clk)) + clk_disable_unprepare(msp->clk); + return ret; } static int mv643xx_eth_shared_remove(struct platform_device *pdev) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index c92ffdf91065..d98b874a7238 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -2050,7 +2050,7 @@ err_drop_frame: if (unlikely(!skb)) goto err_drop_frame_ret_pool; - dma_sync_single_range_for_cpu(dev->dev.parent, + dma_sync_single_range_for_cpu(&pp->bm_priv->pdev->dev, rx_desc->buf_phys_addr, MVNETA_MH_SIZE + NET_SKB_PAD, rx_bytes, diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c index dae9dcfa8f36..e5283387097f 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c @@ -2633,6 +2633,8 @@ int mlx4_cmd_use_events(struct mlx4_dev *dev) if (!priv->cmd.context) return -ENOMEM; + if (mlx4_is_mfunc(dev)) + mutex_lock(&priv->cmd.slave_cmd_mutex); down_write(&priv->cmd.switch_sem); for (i = 0; i < priv->cmd.max_cmds; ++i) { priv->cmd.context[i].token = i; @@ -2658,6 +2660,8 @@ int mlx4_cmd_use_events(struct mlx4_dev *dev) down(&priv->cmd.poll_sem); priv->cmd.use_events = 1; up_write(&priv->cmd.switch_sem); + if (mlx4_is_mfunc(dev)) + mutex_unlock(&priv->cmd.slave_cmd_mutex); return err; } @@ -2670,6 +2674,8 @@ void mlx4_cmd_use_polling(struct mlx4_dev *dev) struct mlx4_priv *priv = mlx4_priv(dev); int i; + if (mlx4_is_mfunc(dev)) + mutex_lock(&priv->cmd.slave_cmd_mutex); down_write(&priv->cmd.switch_sem); priv->cmd.use_events = 0; @@ -2677,9 +2683,12 @@ void mlx4_cmd_use_polling(struct mlx4_dev *dev) down(&priv->cmd.event_sem); kfree(priv->cmd.context); + priv->cmd.context = NULL; up(&priv->cmd.poll_sem); up_write(&priv->cmd.switch_sem); + if (mlx4_is_mfunc(dev)) + mutex_unlock(&priv->cmd.slave_cmd_mutex); } struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev) diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 9d1a7d5ae835..79944302dd46 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -2677,13 +2677,13 @@ static int qp_get_mtt_size(struct mlx4_qp_context *qpc) int total_pages; int total_mem; int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f; + int tot; sq_size = 1 << (log_sq_size + log_sq_sride + 4); rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4)); total_mem = sq_size + rq_size; - total_pages = - roundup_pow_of_two((total_mem + (page_offset << 6)) >> - page_shift); + tot = (total_mem + (page_offset << 6)) >> page_shift; + total_pages = !tot ? 1 : roundup_pow_of_two(tot); return total_pages; } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_common.c b/drivers/net/ethernet/mellanox/mlx5/core/en_common.c index 029e856f72a0..dc809c2ea413 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_common.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_common.c @@ -45,7 +45,9 @@ int mlx5e_create_tir(struct mlx5_core_dev *mdev, if (err) return err; + mutex_lock(&mdev->mlx5e_res.td.list_lock); list_add(&tir->list, &mdev->mlx5e_res.td.tirs_list); + mutex_unlock(&mdev->mlx5e_res.td.list_lock); return 0; } @@ -53,8 +55,10 @@ int mlx5e_create_tir(struct mlx5_core_dev *mdev, void mlx5e_destroy_tir(struct mlx5_core_dev *mdev, struct mlx5e_tir *tir) { + mutex_lock(&mdev->mlx5e_res.td.list_lock); mlx5_core_destroy_tir(mdev, tir->tirn); list_del(&tir->list); + mutex_unlock(&mdev->mlx5e_res.td.list_lock); } static int mlx5e_create_mkey(struct mlx5_core_dev *mdev, u32 pdn, @@ -114,6 +118,7 @@ int mlx5e_create_mdev_resources(struct mlx5_core_dev *mdev) } INIT_LIST_HEAD(&mdev->mlx5e_res.td.tirs_list); + mutex_init(&mdev->mlx5e_res.td.list_lock); return 0; @@ -151,6 +156,7 @@ int mlx5e_refresh_tirs_self_loopback_enable(struct mlx5_core_dev *mdev) MLX5_SET(modify_tir_in, in, bitmask.self_lb_en, 1); + mutex_lock(&mdev->mlx5e_res.td.list_lock); list_for_each_entry(tir, &mdev->mlx5e_res.td.tirs_list, list) { err = mlx5_core_modify_tir(mdev, tir->tirn, in, inlen); if (err) @@ -159,6 +165,7 @@ int mlx5e_refresh_tirs_self_loopback_enable(struct mlx5_core_dev *mdev) out: kvfree(in); + mutex_unlock(&mdev->mlx5e_res.td.list_lock); return err; } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 22a5916e477e..cc847e0cac2d 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -1565,7 +1565,7 @@ static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio) int i; for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) { - snprintf(*p, ETH_GSTRING_LEN, "%s_%d", + snprintf(*p, ETH_GSTRING_LEN, "%.29s_%.1d", mlxsw_sp_port_hw_prio_stats[i].str, prio); *p += ETH_GSTRING_LEN; } @@ -1576,7 +1576,7 @@ static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc) int i; for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) { - snprintf(*p, ETH_GSTRING_LEN, "%s_%d", + snprintf(*p, ETH_GSTRING_LEN, "%.29s_%.1d", mlxsw_sp_port_hw_tc_stats[i].str, tc); *p += ETH_GSTRING_LEN; } diff --git a/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c b/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c index f8df5300f49c..73087770d72f 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c @@ -756,15 +756,10 @@ wrp_alu64_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta, static int wrp_alu32_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta, - enum alu_op alu_op, bool skip) + enum alu_op alu_op) { const struct bpf_insn *insn = &meta->insn; - if (skip) { - meta->skip = true; - return 0; - } - wrp_alu_imm(nfp_prog, insn->dst_reg * 2, alu_op, insn->imm); wrp_immed(nfp_prog, reg_both(insn->dst_reg * 2 + 1), 0); @@ -1017,7 +1012,7 @@ static int xor_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) static int xor_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) { - return wrp_alu32_imm(nfp_prog, meta, ALU_OP_XOR, !~meta->insn.imm); + return wrp_alu32_imm(nfp_prog, meta, ALU_OP_XOR); } static int and_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) @@ -1027,7 +1022,7 @@ static int and_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) static int and_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) { - return wrp_alu32_imm(nfp_prog, meta, ALU_OP_AND, !~meta->insn.imm); + return wrp_alu32_imm(nfp_prog, meta, ALU_OP_AND); } static int or_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) @@ -1037,7 +1032,7 @@ static int or_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) static int or_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) { - return wrp_alu32_imm(nfp_prog, meta, ALU_OP_OR, !meta->insn.imm); + return wrp_alu32_imm(nfp_prog, meta, ALU_OP_OR); } static int add_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) @@ -1047,7 +1042,7 @@ static int add_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) static int add_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) { - return wrp_alu32_imm(nfp_prog, meta, ALU_OP_ADD, !meta->insn.imm); + return wrp_alu32_imm(nfp_prog, meta, ALU_OP_ADD); } static int sub_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) @@ -1057,7 +1052,7 @@ static int sub_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) static int sub_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) { - return wrp_alu32_imm(nfp_prog, meta, ALU_OP_SUB, !meta->insn.imm); + return wrp_alu32_imm(nfp_prog, meta, ALU_OP_SUB); } static int shl_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 71836a7f56b0..480883a7a3e5 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -457,7 +457,7 @@ static int ravb_dmac_init(struct net_device *ndev) RCR_EFFS | RCR_ENCF | RCR_ETS0 | RCR_ESF | 0x18000000, RCR); /* Set FIFO size */ - ravb_write(ndev, TGC_TQP_AVBMODE1 | 0x00222200, TGC); + ravb_write(ndev, TGC_TQP_AVBMODE1 | 0x00112200, TGC); /* Timestamp enable */ ravb_write(ndev, TCCR_TFEN, TCCR); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 20a2b01b392c..b46b56ad7517 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1747,11 +1747,6 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp) if (ret < 0) pr_warn("%s: failed debugFS registration\n", __func__); #endif - /* Start the ball rolling... */ - pr_debug("%s: DMA RX/TX processes started...\n", dev->name); - priv->hw->dma->start_tx(priv->ioaddr); - priv->hw->dma->start_rx(priv->ioaddr); - /* Dump DMA/MAC registers */ if (netif_msg_hw(priv)) { priv->hw->mac->dump_regs(priv->hw); @@ -1779,6 +1774,11 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp) if (priv->tso) priv->hw->dma->enable_tso(priv->ioaddr, 1, STMMAC_CHAN0); + /* Start the ball rolling... */ + pr_debug("%s: DMA RX/TX processes started...\n", dev->name); + priv->hw->dma->start_tx(priv->ioaddr); + priv->hw->dma->start_rx(priv->ioaddr); + return 0; } @@ -2931,6 +2931,20 @@ static int stmmac_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) return ret; } +static int stmmac_set_mac_address(struct net_device *ndev, void *addr) +{ + struct stmmac_priv *priv = netdev_priv(ndev); + int ret = 0; + + ret = eth_mac_addr(ndev, addr); + if (ret) + return ret; + + priv->hw->mac->set_umac_addr(priv->hw, ndev->dev_addr, 0); + + return ret; +} + #ifdef CONFIG_DEBUG_FS static struct dentry *stmmac_fs_dir; @@ -3137,7 +3151,7 @@ static const struct net_device_ops stmmac_netdev_ops = { #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = stmmac_poll_controller, #endif - .ndo_set_mac_address = eth_mac_addr, + .ndo_set_mac_address = stmmac_set_mac_address, }; /** diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index 4a2609c4dd6e..72fb55ca27f3 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -463,7 +463,12 @@ static int ipvlan_nl_changelink(struct net_device *dev, struct ipvl_port *port = ipvlan_port_get_rtnl(ipvlan->phy_dev); int err = 0; - if (data && data[IFLA_IPVLAN_MODE]) { + if (!data) + return 0; + if (!ns_capable(dev_net(ipvlan->phy_dev)->user_ns, CAP_NET_ADMIN)) + return -EPERM; + + if (data[IFLA_IPVLAN_MODE]) { u16 nmode = nla_get_u16(data[IFLA_IPVLAN_MODE]); err = ipvlan_set_port_mode(port, nmode); @@ -530,6 +535,8 @@ static int ipvlan_link_new(struct net *src_net, struct net_device *dev, struct ipvl_dev *tmp = netdev_priv(phy_dev); phy_dev = tmp->phy_dev; + if (!ns_capable(dev_net(phy_dev)->user_ns, CAP_NET_ADMIN)) + return -EPERM; } else if (!netif_is_ipvlan_port(phy_dev)) { err = ipvlan_port_create(phy_dev); if (err < 0) diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 09deef4bed09..a9bbdcec0bad 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -319,7 +319,6 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner) err = device_register(&bus->dev); if (err) { pr_err("mii_bus %s failed to register\n", bus->id); - put_device(&bus->dev); return -EINVAL; } diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c index 3045c9662ed6..5a8befdfa5e4 100644 --- a/drivers/net/ppp/pptp.c +++ b/drivers/net/ppp/pptp.c @@ -541,6 +541,7 @@ static void pptp_sock_destruct(struct sock *sk) pppox_unbind_sock(sk); } skb_queue_purge(&sk->sk_receive_queue); + dst_release(rcu_dereference_protected(sk->sk_dst_cache, 1)); } static int pptp_create(struct net *net, struct socket *sock, int kern) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 24cc94453d38..88fe38d6a7ef 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1194,9 +1194,6 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, u32 rxhash; ssize_t n; - if (!(tun->dev->flags & IFF_UP)) - return -EIO; - if (!(tun->flags & IFF_NO_PI)) { if (len < sizeof(pi)) return -EINVAL; @@ -1273,9 +1270,11 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, err = skb_copy_datagram_from_iter(skb, 0, from, len); if (err) { + err = -EFAULT; +drop: this_cpu_inc(tun->pcpu_stats->rx_dropped); kfree_skb(skb); - return -EFAULT; + return err; } err = virtio_net_hdr_to_skb(skb, &gso, tun_is_little_endian(tun)); @@ -1327,7 +1326,16 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, skb_probe_transport_header(skb, 0); rxhash = skb_get_hash(skb); + + rcu_read_lock(); + if (unlikely(!(tun->dev->flags & IFF_UP))) { + err = -EIO; + rcu_read_unlock(); + goto drop; + } + netif_rx_ni(skb); + rcu_read_unlock(); stats = get_cpu_ptr(tun->pcpu_stats); u64_stats_update_begin(&stats->syncp); diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 134eb184fa22..d51ad140f46d 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -890,13 +890,14 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */ {QMI_FIXED_INTF(0x2001, 0x7e19, 4)}, /* D-Link DWM-221 B1 */ {QMI_FIXED_INTF(0x2001, 0x7e35, 4)}, /* D-Link DWM-222 */ + {QMI_FIXED_INTF(0x2020, 0x2031, 4)}, /* Olicard 600 */ {QMI_FIXED_INTF(0x2020, 0x2033, 4)}, /* BroadMobi BM806U */ {QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)}, /* Sierra Wireless MC7700 */ {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */ {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */ {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */ - {QMI_FIXED_INTF(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354 */ - {QMI_FIXED_INTF(0x1199, 0x68c0, 10)}, /* Sierra Wireless MC7304/MC7354 */ + {QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354, WP76xx */ + {QMI_QUIRK_SET_DTR(0x1199, 0x68c0, 10)},/* Sierra Wireless MC7304/MC7354 */ {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */ {QMI_FIXED_INTF(0x1199, 0x901f, 8)}, /* Sierra Wireless EM7355 */ {QMI_FIXED_INTF(0x1199, 0x9041, 8)}, /* Sierra Wireless MC7305/MC7355 */ diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 373713faa1f5..b6ee0c1690d8 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1380,6 +1380,14 @@ static int vxlan_rcv(struct sock *sk, struct sk_buff *skb) goto drop; } + rcu_read_lock(); + + if (unlikely(!(vxlan->dev->flags & IFF_UP))) { + rcu_read_unlock(); + atomic_long_inc(&vxlan->dev->rx_dropped); + goto drop; + } + stats = this_cpu_ptr(vxlan->dev->tstats); u64_stats_update_begin(&stats->syncp); stats->rx_packets++; @@ -1387,6 +1395,9 @@ static int vxlan_rcv(struct sock *sk, struct sk_buff *skb) u64_stats_update_end(&stats->syncp); gro_cells_receive(&vxlan->gro_cells, skb); + + rcu_read_unlock(); + return 0; drop: @@ -2362,6 +2373,8 @@ static void vxlan_uninit(struct net_device *dev) { struct vxlan_dev *vxlan = netdev_priv(dev); + gro_cells_destroy(&vxlan->gro_cells); + vxlan_fdb_delete_default(vxlan); free_percpu(dev->tstats); @@ -3112,7 +3125,6 @@ static void vxlan_dellink(struct net_device *dev, struct list_head *head) { struct vxlan_dev *vxlan = netdev_priv(dev); - gro_cells_destroy(&vxlan->gro_cells); list_del(&vxlan->next); unregister_netdevice_queue(dev, head); } @@ -3363,10 +3375,8 @@ static void __net_exit vxlan_exit_net(struct net *net) /* If vxlan->dev is in the same netns, it has already been added * to the list by the previous loop. */ - if (!net_eq(dev_net(vxlan->dev), net)) { - gro_cells_destroy(&vxlan->gro_cells); + if (!net_eq(dev_net(vxlan->dev), net)) unregister_netdevice_queue(vxlan->dev, &list); - } } unregister_netdevice_many(&list); diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 21aec5c252ee..bbfe7be214e1 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -4277,7 +4277,7 @@ static void ath10k_tpc_config_disp_tables(struct ath10k *ar, rate_code[i], type); snprintf(buff, sizeof(buff), "%8d ", tpc[j]); - strncat(tpc_value, buff, strlen(buff)); + strlcat(tpc_value, buff, sizeof(tpc_value)); } tpc_stats->tpc_table[type].pream_idx[i] = pream_idx; tpc_stats->tpc_table[type].rate_code[i] = rate_code[i]; diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c index d117240d9a73..b8eeaef17edc 100644 --- a/drivers/net/wireless/ath/wil6210/cfg80211.c +++ b/drivers/net/wireless/ath/wil6210/cfg80211.c @@ -1005,6 +1005,12 @@ static int _wil_cfg80211_merge_extra_ies(const u8 *ies1, u16 ies1_len, u8 *buf, *dpos; const u8 *spos; + if (!ies1) + ies1_len = 0; + + if (!ies2) + ies2_len = 0; + if (ies1_len == 0 && ies2_len == 0) { *merged_ies = NULL; *merged_len = 0; @@ -1014,17 +1020,19 @@ static int _wil_cfg80211_merge_extra_ies(const u8 *ies1, u16 ies1_len, buf = kmalloc(ies1_len + ies2_len, GFP_KERNEL); if (!buf) return -ENOMEM; - memcpy(buf, ies1, ies1_len); + if (ies1) + memcpy(buf, ies1, ies1_len); dpos = buf + ies1_len; spos = ies2; - while (spos + 1 < ies2 + ies2_len) { + while (spos && (spos + 1 < ies2 + ies2_len)) { /* IE tag at offset 0, length at offset 1 */ u16 ielen = 2 + spos[1]; if (spos + ielen > ies2 + ies2_len) break; if (spos[0] == WLAN_EID_VENDOR_SPECIFIC && - !_wil_cfg80211_find_ie(ies1, ies1_len, spos, ielen)) { + (!ies1 || !_wil_cfg80211_find_ie(ies1, ies1_len, + spos, ielen))) { memcpy(dpos, spos, ielen); dpos += ielen; } diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c index e58a50d31d96..c21f8bd32d08 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c @@ -475,7 +475,7 @@ static void iwl_pcie_rx_allocator(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_rb_allocator *rba = &trans_pcie->rba; struct list_head local_empty; - int pending = atomic_xchg(&rba->req_pending, 0); + int pending = atomic_read(&rba->req_pending); IWL_DEBUG_RX(trans, "Pending allocation requests = %d\n", pending); @@ -530,11 +530,13 @@ static void iwl_pcie_rx_allocator(struct iwl_trans *trans) i++; } + atomic_dec(&rba->req_pending); pending--; + if (!pending) { - pending = atomic_xchg(&rba->req_pending, 0); + pending = atomic_read(&rba->req_pending); IWL_DEBUG_RX(trans, - "Pending allocation requests = %d\n", + "Got more pending allocation requests = %d\n", pending); } @@ -546,12 +548,15 @@ static void iwl_pcie_rx_allocator(struct iwl_trans *trans) spin_unlock(&rba->lock); atomic_inc(&rba->req_ready); + } spin_lock(&rba->lock); /* return unused rbds to the allocator empty list */ list_splice_tail(&local_empty, &rba->rbd_empty); spin_unlock(&rba->lock); + + IWL_DEBUG_RX(trans, "%s, exit.\n", __func__); } /* diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 780acf23fd19..e9ec1da9935d 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -3167,7 +3167,7 @@ static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info) goto out_err; } - genlmsg_reply(skb, info); + res = genlmsg_reply(skb, info); break; } diff --git a/drivers/net/wireless/marvell/libertas_tf/if_usb.c b/drivers/net/wireless/marvell/libertas_tf/if_usb.c index e0ade40d9497..4b539209999b 100644 --- a/drivers/net/wireless/marvell/libertas_tf/if_usb.c +++ b/drivers/net/wireless/marvell/libertas_tf/if_usb.c @@ -433,8 +433,6 @@ static int __if_usb_submit_rx_urb(struct if_usb_card *cardp, skb_tail_pointer(skb), MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp); - cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; - lbtf_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC); diff --git a/drivers/net/wireless/mediatek/mt7601u/eeprom.h b/drivers/net/wireless/mediatek/mt7601u/eeprom.h index 662d12703b69..57b503ae63f1 100644 --- a/drivers/net/wireless/mediatek/mt7601u/eeprom.h +++ b/drivers/net/wireless/mediatek/mt7601u/eeprom.h @@ -17,7 +17,7 @@ struct mt7601u_dev; -#define MT7601U_EE_MAX_VER 0x0c +#define MT7601U_EE_MAX_VER 0x0d #define MT7601U_EEPROM_SIZE 256 #define MT7601U_DEFAULT_TX_POWER 6 diff --git a/drivers/net/wireless/rsi/rsi_common.h b/drivers/net/wireless/rsi/rsi_common.h index d3fbe33d2324..a13f08fd8690 100644 --- a/drivers/net/wireless/rsi/rsi_common.h +++ b/drivers/net/wireless/rsi/rsi_common.h @@ -75,7 +75,6 @@ static inline int rsi_kill_thread(struct rsi_thread *handle) atomic_inc(&handle->thread_done); rsi_set_event(&handle->event); - wait_for_completion(&handle->completion); return kthread_stop(handle->task); } diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index 5438975c7ff2..17d32ce5d16b 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -1058,8 +1058,11 @@ static int wl12xx_chip_wakeup(struct wl1271 *wl, bool plt) goto out; ret = wl12xx_fetch_firmware(wl, plt); - if (ret < 0) - goto out; + if (ret < 0) { + kfree(wl->fw_status); + kfree(wl->raw_fw_status); + kfree(wl->tx_res_if); + } out: return ret; diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index d8d189d14834..66a089d561cf 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -492,7 +492,7 @@ static unsigned long nd_label_offset(struct nvdimm_drvdata *ndd, static int __pmem_label_update(struct nd_region *nd_region, struct nd_mapping *nd_mapping, struct nd_namespace_pmem *nspm, - int pos) + int pos, unsigned long flags) { u64 cookie = nd_region_interleave_set_cookie(nd_region); struct nvdimm_drvdata *ndd = to_ndd(nd_mapping); @@ -530,7 +530,7 @@ static int __pmem_label_update(struct nd_region *nd_region, memcpy(nd_label->uuid, nspm->uuid, NSLABEL_UUID_LEN); if (nspm->alt_name) memcpy(nd_label->name, nspm->alt_name, NSLABEL_NAME_LEN); - nd_label->flags = __cpu_to_le32(NSLABEL_FLAG_UPDATING); + nd_label->flags = __cpu_to_le32(flags); nd_label->nlabel = __cpu_to_le16(nd_region->ndr_mappings); nd_label->position = __cpu_to_le16(pos); nd_label->isetcookie = __cpu_to_le64(cookie); @@ -922,13 +922,13 @@ static int del_labels(struct nd_mapping *nd_mapping, u8 *uuid) int nd_pmem_namespace_label_update(struct nd_region *nd_region, struct nd_namespace_pmem *nspm, resource_size_t size) { - int i; + int i, rc; for (i = 0; i < nd_region->ndr_mappings; i++) { struct nd_mapping *nd_mapping = &nd_region->mapping[i]; struct nvdimm_drvdata *ndd = to_ndd(nd_mapping); struct resource *res; - int rc, count = 0; + int count = 0; if (size == 0) { rc = del_labels(nd_mapping, nspm->uuid); @@ -946,7 +946,20 @@ int nd_pmem_namespace_label_update(struct nd_region *nd_region, if (rc < 0) return rc; - rc = __pmem_label_update(nd_region, nd_mapping, nspm, i); + rc = __pmem_label_update(nd_region, nd_mapping, nspm, i, + NSLABEL_FLAG_UPDATING); + if (rc) + return rc; + } + + if (size == 0) + return 0; + + /* Clear the UPDATING flag per UEFI 2.7 expectations */ + for (i = 0; i < nd_region->ndr_mappings; i++) { + struct nd_mapping *nd_mapping = &nd_region->mapping[i]; + + rc = __pmem_label_update(nd_region, nd_mapping, nspm, i, 0); if (rc) return rc; } diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 74257ac92490..9bc5f555ee68 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -138,6 +138,7 @@ bool nd_is_uuid_unique(struct device *dev, u8 *uuid) bool pmem_should_map_pages(struct device *dev) { struct nd_region *nd_region = to_nd_region(dev->parent); + struct nd_namespace_common *ndns = to_ndns(dev); struct nd_namespace_io *nsio; if (!IS_ENABLED(CONFIG_ZONE_DEVICE)) @@ -149,6 +150,9 @@ bool pmem_should_map_pages(struct device *dev) if (is_nd_pfn(dev) || is_nd_btt(dev)) return false; + if (ndns->force_raw) + return false; + nsio = to_nd_namespace_io(dev); if (region_intersects(nsio->res.start, resource_size(&nsio->res), IORESOURCE_SYSTEM_RAM, diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c index d6aa59ca68b9..ba9aa8475e6d 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -515,7 +515,7 @@ static unsigned long init_altmap_base(resource_size_t base) static unsigned long init_altmap_reserve(resource_size_t base) { - unsigned long reserve = PHYS_PFN(SZ_8K); + unsigned long reserve = PFN_UP(SZ_8K); unsigned long base_pfn = PHYS_PFN(base); reserve += base_pfn - PFN_SECTION_ALIGN_DOWN(base_pfn); diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index bdce0679674c..02e6485c1ed5 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -1377,7 +1377,7 @@ static struct superio_struct *find_superio(struct parport *p) { int i; for (i = 0; i < NR_SUPERIOS; i++) - if (superios[i].io != p->base) + if (superios[i].io == p->base) return &superios[i]; return NULL; } diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index dedb12083d86..6663b76934ad 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3866,6 +3866,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9128, /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c14 */ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9130, quirk_dma_func1_alias); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9170, + quirk_dma_func1_alias); /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c47 + c57 */ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9172, quirk_dma_func1_alias); diff --git a/drivers/pinctrl/meson/pinctrl-meson8b.c b/drivers/pinctrl/meson/pinctrl-meson8b.c index cbe5f5cbddb8..e1b689f840ab 100644 --- a/drivers/pinctrl/meson/pinctrl-meson8b.c +++ b/drivers/pinctrl/meson/pinctrl-meson8b.c @@ -662,7 +662,7 @@ static const char * const sd_a_groups[] = { static const char * const sdxc_a_groups[] = { "sdxc_d0_0_a", "sdxc_d13_0_a", "sdxc_d47_a", "sdxc_clk_a", - "sdxc_cmd_a", "sdxc_d0_1_a", "sdxc_d0_13_1_a" + "sdxc_cmd_a", "sdxc_d0_1_a", "sdxc_d13_1_a" }; static const char * const pcm_a_groups[] = { diff --git a/drivers/power/supply/charger-manager.c b/drivers/power/supply/charger-manager.c index e664ca7c0afd..13f23c00538b 100644 --- a/drivers/power/supply/charger-manager.c +++ b/drivers/power/supply/charger-manager.c @@ -1212,7 +1212,6 @@ static int charger_extcon_init(struct charger_manager *cm, if (ret < 0) { pr_info("Cannot register extcon_dev for %s(cable: %s)\n", cable->extcon_name, cable->name); - ret = -EINVAL; } return ret; @@ -1634,7 +1633,7 @@ static int charger_manager_probe(struct platform_device *pdev) if (IS_ERR(desc)) { dev_err(&pdev->dev, "No platform data (desc) found\n"); - return -ENODEV; + return PTR_ERR(desc); } cm = devm_kzalloc(&pdev->dev, diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c index 7652477e6a9d..39e8d60df060 100644 --- a/drivers/regulator/act8865-regulator.c +++ b/drivers/regulator/act8865-regulator.c @@ -131,7 +131,7 @@ * ACT8865 voltage number */ #define ACT8865_VOLTAGE_NUM 64 -#define ACT8600_SUDCDC_VOLTAGE_NUM 255 +#define ACT8600_SUDCDC_VOLTAGE_NUM 256 struct act8865 { struct regmap *regmap; @@ -222,7 +222,8 @@ static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0), REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000), REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000), - REGULATOR_LINEAR_RANGE(19000000, 191, 255, 400000), + REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000), + REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0), }; static struct regulator_ops act8865_ops = { diff --git a/drivers/regulator/s2mpa01.c b/drivers/regulator/s2mpa01.c index 92f88753bfed..2daf751c26c7 100644 --- a/drivers/regulator/s2mpa01.c +++ b/drivers/regulator/s2mpa01.c @@ -303,13 +303,13 @@ static const struct regulator_desc regulators[] = { regulator_desc_ldo(2, STEP_50_MV), regulator_desc_ldo(3, STEP_50_MV), regulator_desc_ldo(4, STEP_50_MV), - regulator_desc_ldo(5, STEP_50_MV), + regulator_desc_ldo(5, STEP_25_MV), regulator_desc_ldo(6, STEP_25_MV), regulator_desc_ldo(7, STEP_50_MV), regulator_desc_ldo(8, STEP_50_MV), regulator_desc_ldo(9, STEP_50_MV), regulator_desc_ldo(10, STEP_50_MV), - regulator_desc_ldo(11, STEP_25_MV), + regulator_desc_ldo(11, STEP_50_MV), regulator_desc_ldo(12, STEP_50_MV), regulator_desc_ldo(13, STEP_50_MV), regulator_desc_ldo(14, STEP_50_MV), @@ -320,11 +320,11 @@ static const struct regulator_desc regulators[] = { regulator_desc_ldo(19, STEP_50_MV), regulator_desc_ldo(20, STEP_50_MV), regulator_desc_ldo(21, STEP_50_MV), - regulator_desc_ldo(22, STEP_25_MV), - regulator_desc_ldo(23, STEP_25_MV), + regulator_desc_ldo(22, STEP_50_MV), + regulator_desc_ldo(23, STEP_50_MV), regulator_desc_ldo(24, STEP_50_MV), regulator_desc_ldo(25, STEP_50_MV), - regulator_desc_ldo(26, STEP_50_MV), + regulator_desc_ldo(26, STEP_25_MV), regulator_desc_buck1_4(1), regulator_desc_buck1_4(2), regulator_desc_buck1_4(3), diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index d838e77dd947..1fe1c18cc27b 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -376,7 +376,7 @@ static const struct regulator_desc s2mps11_regulators[] = { regulator_desc_s2mps11_ldo(32, STEP_50_MV), regulator_desc_s2mps11_ldo(33, STEP_50_MV), regulator_desc_s2mps11_ldo(34, STEP_50_MV), - regulator_desc_s2mps11_ldo(35, STEP_50_MV), + regulator_desc_s2mps11_ldo(35, STEP_25_MV), regulator_desc_s2mps11_ldo(36, STEP_50_MV), regulator_desc_s2mps11_ldo(37, STEP_50_MV), regulator_desc_s2mps11_ldo(38, STEP_50_MV), @@ -386,8 +386,8 @@ static const struct regulator_desc s2mps11_regulators[] = { regulator_desc_s2mps11_buck1_4(4), regulator_desc_s2mps11_buck5, regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV), - regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_6_25_MV), - regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_12_5_MV), + regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_12_5_MV), regulator_desc_s2mps11_buck9, regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV), }; diff --git a/drivers/rtc/rtc-lib.c b/drivers/rtc/rtc-lib.c index e6bfb9c42a10..5b136bdc03d4 100644 --- a/drivers/rtc/rtc-lib.c +++ b/drivers/rtc/rtc-lib.c @@ -52,13 +52,11 @@ EXPORT_SYMBOL(rtc_year_days); */ void rtc_time64_to_tm(time64_t time, struct rtc_time *tm) { - unsigned int month, year; - unsigned long secs; + unsigned int month, year, secs; int days; /* time must be positive */ - days = div_s64(time, 86400); - secs = time - (unsigned int) days * 86400; + days = div_s64_rem(time, 86400, &secs); /* day of the week, 1970-01-01 was a Thursday */ tm->tm_wday = (days + 4) % 7; diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index be17de9807b6..11c6335b1951 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -4508,6 +4508,14 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp) usrparm.psf_data &= 0x7fffffffULL; usrparm.rssd_result &= 0x7fffffffULL; } + /* at least 2 bytes are accessed and should be allocated */ + if (usrparm.psf_data_len < 2) { + DBF_DEV_EVENT(DBF_WARNING, device, + "Symmetrix ioctl invalid data length %d", + usrparm.psf_data_len); + rc = -EINVAL; + goto out; + } /* alloc I/O data area */ psf_data = kzalloc(usrparm.psf_data_len, GFP_KERNEL | GFP_DMA); rssd_result = kzalloc(usrparm.rssd_result_len, GFP_KERNEL | GFP_DMA); diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 2abcd331b05d..abe460eac712 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -652,6 +652,20 @@ static void zfcp_erp_strategy_memwait(struct zfcp_erp_action *erp_action) add_timer(&erp_action->timer); } +void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter, + int clear, char *dbftag) +{ + unsigned long flags; + struct zfcp_port *port; + + write_lock_irqsave(&adapter->erp_lock, flags); + read_lock(&adapter->port_list_lock); + list_for_each_entry(port, &adapter->port_list, list) + _zfcp_erp_port_forced_reopen(port, clear, dbftag); + read_unlock(&adapter->port_list_lock); + write_unlock_irqrestore(&adapter->erp_lock, flags); +} + static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter, int clear, char *id) { @@ -1306,6 +1320,9 @@ static void zfcp_erp_try_rport_unblock(struct zfcp_port *port) struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev); int lun_status; + if (sdev->sdev_state == SDEV_DEL || + sdev->sdev_state == SDEV_CANCEL) + continue; if (zsdev->port != port) continue; /* LUN under port of interest */ diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index b326f05c7f89..a39a74500e23 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -68,6 +68,8 @@ extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32); extern int zfcp_erp_port_reopen(struct zfcp_port *, int, char *); extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *); extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *); +extern void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter, + int clear, char *dbftag); extern void zfcp_erp_set_lun_status(struct scsi_device *, u32); extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32); extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *); diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 3afb200b2829..bdb257eaa2e5 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -326,6 +326,10 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt) struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; int ret = SUCCESS, fc_ret; + if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) { + zfcp_erp_port_forced_reopen_all(adapter, 0, "schrh_p"); + zfcp_erp_wait(adapter); + } zfcp_erp_adapter_reopen(adapter, 0, "schrh_1"); zfcp_erp_wait(adapter); fc_ret = fc_block_scsi_eh(scpnt); diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index 3493d449911c..d5e510ff5437 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -283,6 +283,8 @@ static void virtio_ccw_drop_indicators(struct virtio_ccw_device *vcdev) { struct virtio_ccw_vq_info *info; + if (!vcdev->airq_info) + return; list_for_each_entry(info, &vcdev->virtqueues, node) drop_airq_indicator(info->vq, vcdev->airq_info); } @@ -424,7 +426,7 @@ static int virtio_ccw_read_vq_conf(struct virtio_ccw_device *vcdev, ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_READ_VQ_CONF); if (ret) return ret; - return vcdev->config_block->num; + return vcdev->config_block->num ?: -ENOENT; } static void virtio_ccw_del_vq(struct virtqueue *vq, struct ccw1 *ccw) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 2f872f784e10..5252dd5d3f4b 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -10,6 +10,7 @@ */ #include "hisi_sas.h" +#include "../libsas/sas_internal.h" #define DRV_NAME "hisi_sas" #define DEV_IS_GONE(dev) \ @@ -1128,9 +1129,18 @@ static void hisi_sas_port_deformed(struct asd_sas_phy *sas_phy) static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy) { + struct asd_sas_phy *sas_phy = &phy->sas_phy; + struct sas_phy *sphy = sas_phy->phy; + struct sas_phy_data *d = sphy->hostdata; + phy->phy_attached = 0; phy->phy_type = 0; phy->port = NULL; + + if (d->enable) + sphy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN; + else + sphy->negotiated_linkrate = SAS_PHY_DISABLED; } void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy) diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index c79743de48f9..2ffe10453e30 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1448,7 +1448,13 @@ static int iscsi_xmit_task(struct iscsi_conn *conn) if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) return -ENODATA; + spin_lock_bh(&conn->session->back_lock); + if (conn->task == NULL) { + spin_unlock_bh(&conn->session->back_lock); + return -ENODATA; + } __iscsi_get_task(task); + spin_unlock_bh(&conn->session->back_lock); spin_unlock_bh(&conn->session->frwd_lock); rc = conn->session->tt->xmit_task(task); spin_lock_bh(&conn->session->frwd_lock); diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 5de024a50e15..5b1c37e3913c 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -3956,6 +3956,7 @@ int megasas_alloc_cmds(struct megasas_instance *instance) if (megasas_create_frame_pool(instance)) { dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); megasas_free_cmds(instance); + return -ENOMEM; } return 0; diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 27a6d3c6cb7c..67f6f134abc4 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -219,7 +219,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size, - GFP_ATOMIC); + GFP_KERNEL); if (!sdev) goto out; @@ -796,7 +796,7 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, */ sdev->inquiry = kmemdup(inq_result, max_t(size_t, sdev->inquiry_len, 36), - GFP_ATOMIC); + GFP_KERNEL); if (sdev->inquiry == NULL) return SCSI_SCAN_NO_RESPONSE; @@ -1095,7 +1095,7 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget, if (!sdev) goto out; - result = kmalloc(result_len, GFP_ATOMIC | + result = kmalloc(result_len, GFP_KERNEL | ((shost->unchecked_isa_dma) ? __GFP_DMA : 0)); if (!result) goto out_free_sdev; diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 867ae76f93f2..58345d3d4682 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1284,11 +1284,6 @@ static void sd_release(struct gendisk *disk, fmode_t mode) scsi_set_medium_removal(sdev, SCSI_REMOVAL_ALLOW); } - /* - * XXX and what if there are packets in flight and this close() - * XXX is followed by a "rmmod sd_mod"? - */ - scsi_disk_put(sdkp); } @@ -2834,6 +2829,58 @@ static void sd_read_write_same(struct scsi_disk *sdkp, unsigned char *buffer) sdkp->ws10 = 1; } +/* + * Determine the device's preferred I/O size for reads and writes + * unless the reported value is unreasonably small, large, not a + * multiple of the physical block size, or simply garbage. + */ +static bool sd_validate_opt_xfer_size(struct scsi_disk *sdkp, + unsigned int dev_max) +{ + struct scsi_device *sdp = sdkp->device; + unsigned int opt_xfer_bytes = + logical_to_bytes(sdp, sdkp->opt_xfer_blocks); + + if (sdkp->opt_xfer_blocks == 0) + return false; + + if (sdkp->opt_xfer_blocks > dev_max) { + sd_first_printk(KERN_WARNING, sdkp, + "Optimal transfer size %u logical blocks " \ + "> dev_max (%u logical blocks)\n", + sdkp->opt_xfer_blocks, dev_max); + return false; + } + + if (sdkp->opt_xfer_blocks > SD_DEF_XFER_BLOCKS) { + sd_first_printk(KERN_WARNING, sdkp, + "Optimal transfer size %u logical blocks " \ + "> sd driver limit (%u logical blocks)\n", + sdkp->opt_xfer_blocks, SD_DEF_XFER_BLOCKS); + return false; + } + + if (opt_xfer_bytes < PAGE_SIZE) { + sd_first_printk(KERN_WARNING, sdkp, + "Optimal transfer size %u bytes < " \ + "PAGE_SIZE (%u bytes)\n", + opt_xfer_bytes, (unsigned int)PAGE_SIZE); + return false; + } + + if (opt_xfer_bytes & (sdkp->physical_block_size - 1)) { + sd_first_printk(KERN_WARNING, sdkp, + "Optimal transfer size %u bytes not a " \ + "multiple of physical block size (%u bytes)\n", + opt_xfer_bytes, sdkp->physical_block_size); + return false; + } + + sd_first_printk(KERN_INFO, sdkp, "Optimal transfer size %u bytes\n", + opt_xfer_bytes); + return true; +} + /** * sd_revalidate_disk - called the first time a new disk is seen, * performs disk spin up, read_capacity, etc. @@ -2898,15 +2945,7 @@ static int sd_revalidate_disk(struct gendisk *disk) dev_max = min_not_zero(dev_max, sdkp->max_xfer_blocks); q->limits.max_dev_sectors = logical_to_sectors(sdp, dev_max); - /* - * Determine the device's preferred I/O size for reads and writes - * unless the reported value is unreasonably small, large, or - * garbage. - */ - if (sdkp->opt_xfer_blocks && - sdkp->opt_xfer_blocks <= dev_max && - sdkp->opt_xfer_blocks <= SD_DEF_XFER_BLOCKS && - logical_to_bytes(sdp, sdkp->opt_xfer_blocks) >= PAGE_SIZE) { + if (sd_validate_opt_xfer_size(sdkp, dev_max)) { q->limits.io_opt = logical_to_bytes(sdp, sdkp->opt_xfer_blocks); rw_max = logical_to_sectors(sdp, sdkp->opt_xfer_blocks); } else @@ -3216,11 +3255,23 @@ static void scsi_disk_release(struct device *dev) { struct scsi_disk *sdkp = to_scsi_disk(dev); struct gendisk *disk = sdkp->disk; - + struct request_queue *q = disk->queue; + spin_lock(&sd_index_lock); ida_remove(&sd_index_ida, sdkp->index); spin_unlock(&sd_index_lock); + /* + * Wait until all requests that are in progress have completed. + * This is necessary to avoid that e.g. scsi_end_request() crashes + * due to clearing the disk->private_data pointer. Wait from inside + * scsi_disk_release() instead of from sd_release() to avoid that + * freezing and unfreezing the request queue affects user space I/O + * in case multiple processes open a /dev/sd... node concurrently. + */ + blk_mq_freeze_queue(q); + blk_mq_unfreeze_queue(q); + disk->private_data = NULL; put_disk(disk); put_device(&sdkp->device->sdev_gendev); diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 5cfd56f08ffb..0b858414c558 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1348,10 +1348,11 @@ static int ufshcd_comp_devman_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) u32 upiu_flags; int ret = 0; - if (hba->ufs_version == UFSHCI_VERSION_20) - lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; - else + if ((hba->ufs_version == UFSHCI_VERSION_10) || + (hba->ufs_version == UFSHCI_VERSION_11)) lrbp->command_type = UTP_CMD_TYPE_DEV_MANAGE; + else + lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags, DMA_NONE); if (hba->dev_cmd.type == DEV_CMD_TYPE_QUERY) @@ -1375,10 +1376,11 @@ static int ufshcd_comp_scsi_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) u32 upiu_flags; int ret = 0; - if (hba->ufs_version == UFSHCI_VERSION_20) - lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; - else + if ((hba->ufs_version == UFSHCI_VERSION_10) || + (hba->ufs_version == UFSHCI_VERSION_11)) lrbp->command_type = UTP_CMD_TYPE_SCSI; + else + lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE; if (likely(lrbp->cmd)) { ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags, diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index cbc8e9388268..7ba0031d3a73 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -693,7 +693,6 @@ static int virtscsi_device_reset(struct scsi_cmnd *sc) return FAILED; memset(cmd, 0, sizeof(*cmd)); - cmd->sc = sc; cmd->req.tmf = (struct virtio_scsi_ctrl_tmf_req){ .type = VIRTIO_SCSI_T_TMF, .subtype = cpu_to_virtio32(vscsi->vdev, @@ -752,7 +751,6 @@ static int virtscsi_abort(struct scsi_cmnd *sc) return FAILED; memset(cmd, 0, sizeof(*cmd)); - cmd->sc = sc; cmd->req.tmf = (struct virtio_scsi_ctrl_tmf_req){ .type = VIRTIO_SCSI_T_TMF, .subtype = VIRTIO_SCSI_T_TMF_ABORT_TASK, diff --git a/drivers/soc/qcom/qcom_gsbi.c b/drivers/soc/qcom/qcom_gsbi.c index 09c669e70d63..038abc377fdb 100644 --- a/drivers/soc/qcom/qcom_gsbi.c +++ b/drivers/soc/qcom/qcom_gsbi.c @@ -138,7 +138,7 @@ static int gsbi_probe(struct platform_device *pdev) struct resource *res; void __iomem *base; struct gsbi_info *gsbi; - int i; + int i, ret; u32 mask, gsbi_num; const struct crci_config *config = NULL; @@ -221,7 +221,10 @@ static int gsbi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, gsbi); - return of_platform_populate(node, NULL, NULL, &pdev->dev); + ret = of_platform_populate(node, NULL, NULL, &pdev->dev); + if (ret) + clk_disable_unprepare(gsbi->hclk); + return ret; } static int gsbi_remove(struct platform_device *pdev) diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c index de2c1bfe28b5..c4f5e5bbb8dc 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra.c +++ b/drivers/soc/tegra/fuse/fuse-tegra.c @@ -131,13 +131,17 @@ static int tegra_fuse_probe(struct platform_device *pdev) /* take over the memory region from the early initialization */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); fuse->base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(fuse->base)) - return PTR_ERR(fuse->base); + if (IS_ERR(fuse->base)) { + err = PTR_ERR(fuse->base); + fuse->base = base; + return err; + } fuse->clk = devm_clk_get(&pdev->dev, "fuse"); if (IS_ERR(fuse->clk)) { dev_err(&pdev->dev, "failed to get FUSE clock: %ld", PTR_ERR(fuse->clk)); + fuse->base = base; return PTR_ERR(fuse->clk); } @@ -146,8 +150,10 @@ static int tegra_fuse_probe(struct platform_device *pdev) if (fuse->soc->probe) { err = fuse->soc->probe(fuse); - if (err < 0) + if (err < 0) { + fuse->base = base; return err; + } } if (tegra_fuse_create_sysfs(&pdev->dev, fuse->soc->info->size, diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 9685f9b8be07..a12710c917a1 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -512,16 +512,10 @@ EXPORT_SYMBOL(tegra_powergate_power_off); */ int tegra_powergate_is_powered(unsigned int id) { - int status; - if (!tegra_powergate_is_valid(id)) return -EINVAL; - mutex_lock(&pmc->powergates_lock); - status = tegra_powergate_state(id); - mutex_unlock(&pmc->powergates_lock); - - return status; + return tegra_powergate_state(id); } /** diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 3f3751e2b521..f2209ec4cb68 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1668,6 +1668,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) platform_info->enable_dma = false; } else { master->can_dma = pxa2xx_spi_can_dma; + master->max_dma_len = MAX_DMA_LEN; } } diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index caeac66a3977..4cb72a8e4646 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -457,8 +457,8 @@ static void ti_qspi_enable_memory_map(struct spi_device *spi) ti_qspi_write(qspi, MM_SWITCH, QSPI_SPI_SWITCH_REG); if (qspi->ctrl_base) { regmap_update_bits(qspi->ctrl_base, qspi->ctrl_reg, - MEM_CS_EN(spi->chip_select), - MEM_CS_MASK); + MEM_CS_MASK, + MEM_CS_EN(spi->chip_select)); } qspi->mmap_enabled = true; } @@ -470,7 +470,7 @@ static void ti_qspi_disable_memory_map(struct spi_device *spi) ti_qspi_write(qspi, 0, QSPI_SPI_SWITCH_REG); if (qspi->ctrl_base) regmap_update_bits(qspi->ctrl_base, qspi->ctrl_reg, - 0, MEM_CS_MASK); + MEM_CS_MASK, 0); qspi->mmap_enabled = false; } diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index dcb637665eb7..35432fbd6551 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -984,6 +984,8 @@ int comedi_dio_insn_config(struct comedi_device *, struct comedi_subdevice *, unsigned int mask); unsigned int comedi_dio_update_state(struct comedi_subdevice *, unsigned int *data); +unsigned int comedi_bytes_per_scan_cmd(struct comedi_subdevice *s, + struct comedi_cmd *cmd); unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s); unsigned int comedi_nscans_left(struct comedi_subdevice *s, unsigned int nscans); diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index 1736248bc5b8..8ca5493c66fe 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -390,11 +390,13 @@ unsigned int comedi_dio_update_state(struct comedi_subdevice *s, EXPORT_SYMBOL_GPL(comedi_dio_update_state); /** - * comedi_bytes_per_scan() - Get length of asynchronous command "scan" in bytes + * comedi_bytes_per_scan_cmd() - Get length of asynchronous command "scan" in + * bytes * @s: COMEDI subdevice. + * @cmd: COMEDI command. * * Determines the overall scan length according to the subdevice type and the - * number of channels in the scan. + * number of channels in the scan for the specified command. * * For digital input, output or input/output subdevices, samples for * multiple channels are assumed to be packed into one or more unsigned @@ -404,9 +406,9 @@ EXPORT_SYMBOL_GPL(comedi_dio_update_state); * * Returns the overall scan length in bytes. */ -unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s) +unsigned int comedi_bytes_per_scan_cmd(struct comedi_subdevice *s, + struct comedi_cmd *cmd) { - struct comedi_cmd *cmd = &s->async->cmd; unsigned int num_samples; unsigned int bits_per_sample; @@ -423,6 +425,29 @@ unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s) } return comedi_samples_to_bytes(s, num_samples); } +EXPORT_SYMBOL_GPL(comedi_bytes_per_scan_cmd); + +/** + * comedi_bytes_per_scan() - Get length of asynchronous command "scan" in bytes + * @s: COMEDI subdevice. + * + * Determines the overall scan length according to the subdevice type and the + * number of channels in the scan for the current command. + * + * For digital input, output or input/output subdevices, samples for + * multiple channels are assumed to be packed into one or more unsigned + * short or unsigned int values according to the subdevice's %SDF_LSAMPL + * flag. For other types of subdevice, samples are assumed to occupy a + * whole unsigned short or unsigned int according to the %SDF_LSAMPL flag. + * + * Returns the overall scan length in bytes. + */ +unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s) +{ + struct comedi_cmd *cmd = &s->async->cmd; + + return comedi_bytes_per_scan_cmd(s, cmd); +} EXPORT_SYMBOL_GPL(comedi_bytes_per_scan); static unsigned int __comedi_nscans_left(struct comedi_subdevice *s, diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 0fa85d55c82f..fe03a41dc5cf 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -3477,6 +3477,7 @@ static int ni_cdio_check_chanlist(struct comedi_device *dev, static int ni_cdio_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + unsigned int bytes_per_scan; int err = 0; int tmp; @@ -3506,9 +3507,12 @@ static int ni_cdio_cmdtest(struct comedi_device *dev, err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0); err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); - err |= comedi_check_trigger_arg_max(&cmd->stop_arg, - s->async->prealloc_bufsz / - comedi_bytes_per_scan(s)); + bytes_per_scan = comedi_bytes_per_scan_cmd(s, cmd); + if (bytes_per_scan) { + err |= comedi_check_trigger_arg_max(&cmd->stop_arg, + s->async->prealloc_bufsz / + bytes_per_scan); + } if (err) return 3; diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index ab96629b7889..22e5116e74f8 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -977,8 +977,6 @@ static void vnt_interrupt_process(struct vnt_private *priv) return; } - MACvIntDisable(priv->PortOffset); - spin_lock_irqsave(&priv->lock, flags); /* Read low level stats */ @@ -1067,8 +1065,6 @@ static void vnt_interrupt_process(struct vnt_private *priv) } spin_unlock_irqrestore(&priv->lock, flags); - - MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE); } static void vnt_interrupt_work(struct work_struct *work) @@ -1078,14 +1074,17 @@ static void vnt_interrupt_work(struct work_struct *work) if (priv->vif) vnt_interrupt_process(priv); + + MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE); } static irqreturn_t vnt_interrupt(int irq, void *arg) { struct vnt_private *priv = arg; - if (priv->vif) - schedule_work(&priv->interrupt_work); + schedule_work(&priv->interrupt_work); + + MACvIntDisable(priv->PortOffset); return IRQ_HANDLED; } diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 80205f3362d4..b6c4f55f79e7 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4084,9 +4084,9 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn) struct se_cmd *se_cmd = &cmd->se_cmd; if (se_cmd->se_tfo != NULL) { - spin_lock(&se_cmd->t_state_lock); + spin_lock_irq(&se_cmd->t_state_lock); se_cmd->transport_state |= CMD_T_FABRIC_STOP; - spin_unlock(&se_cmd->t_state_lock); + spin_unlock_irq(&se_cmd->t_state_lock); } } spin_unlock_bh(&conn->cmd_lock); diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c index 5836e5554433..d4c374cc4f74 100644 --- a/drivers/thermal/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/int340x_thermal/int3400_thermal.c @@ -20,6 +20,13 @@ enum int3400_thermal_uuid { INT3400_THERMAL_PASSIVE_1, INT3400_THERMAL_ACTIVE, INT3400_THERMAL_CRITICAL, + INT3400_THERMAL_ADAPTIVE_PERFORMANCE, + INT3400_THERMAL_EMERGENCY_CALL_MODE, + INT3400_THERMAL_PASSIVE_2, + INT3400_THERMAL_POWER_BOSS, + INT3400_THERMAL_VIRTUAL_SENSOR, + INT3400_THERMAL_COOLING_MODE, + INT3400_THERMAL_HARDWARE_DUTY_CYCLING, INT3400_THERMAL_MAXIMUM_UUID, }; @@ -27,6 +34,13 @@ static u8 *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = { "42A441D6-AE6A-462b-A84B-4A8CE79027D3", "3A95C389-E4B8-4629-A526-C52C88626BAE", "97C68AE7-15FA-499c-B8C9-5DA81D606E0A", + "63BE270F-1C11-48FD-A6F7-3AF253FF3E2D", + "5349962F-71E6-431D-9AE8-0A635B710AEE", + "9E04115A-AE87-4D1C-9500-0F3E340BFE75", + "F5A35014-C209-46A4-993A-EB56DE7530A1", + "6ED722A7-9240-48A5-B479-31EEF723D7CF", + "16CAF1B7-DD38-40ED-B1C1-1B8A1913D531", + "BE84BABF-C4D4-403D-B495-3128FD44dAC1", }; struct int3400_thermal_priv { @@ -271,10 +285,9 @@ static int int3400_thermal_probe(struct platform_device *pdev) platform_set_drvdata(pdev, priv); - if (priv->uuid_bitmap & 1 << INT3400_THERMAL_PASSIVE_1) { - int3400_thermal_ops.get_mode = int3400_thermal_get_mode; - int3400_thermal_ops.set_mode = int3400_thermal_set_mode; - } + int3400_thermal_ops.get_mode = int3400_thermal_get_mode; + int3400_thermal_ops.set_mode = int3400_thermal_set_mode; + priv->thermal = thermal_zone_device_register("INT3400 Thermal", 0, 0, priv, &int3400_thermal_ops, &int3400_thermal_params, 0, 0); diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig index 95103054c0e4..fdd2860cb9bd 100644 --- a/drivers/tty/Kconfig +++ b/drivers/tty/Kconfig @@ -455,4 +455,27 @@ config MIPS_EJTAG_FDC_KGDB_CHAN help FDC channel number to use for KGDB. +config LDISC_AUTOLOAD + bool "Automatically load TTY Line Disciplines" + default y + help + Historically the kernel has always automatically loaded any + line discipline that is in a kernel module when a user asks + for it to be loaded with the TIOCSETD ioctl, or through other + means. This is not always the best thing to do on systems + where you know you will not be using some of the more + "ancient" line disciplines, so prevent the kernel from doing + this unless the request is coming from a process with the + CAP_SYS_MODULE permissions. + + Say 'Y' here if you trust your userspace users to do the right + thing, or if you have only provided the line disciplines that + you know you will be using, or if you wish to continue to use + the traditional method of on-demand loading of these modules + by any user. + + This functionality can be changed at runtime with the + dev.tty.ldisc_autoload sysctl, this configuration option will + only set the default value of this functionality. + endif # TTY diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c index 7a8b5fc81a19..f89dfde934a3 100644 --- a/drivers/tty/serial/8250/8250_of.c +++ b/drivers/tty/serial/8250/8250_of.c @@ -97,6 +97,10 @@ static int of_platform_serial_setup(struct platform_device *ofdev, if (of_property_read_u32(np, "reg-offset", &prop) == 0) port->mapbase += prop; + /* Compatibility with the deprecated pxa driver and 8250_pxa drivers. */ + if (of_device_is_compatible(np, "mrvl,mmp-uart")) + port->regshift = 2; + /* Check for registers offset within the devices address range */ if (of_property_read_u32(np, "reg-shift", &prop) == 0) port->regshift = prop; diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index e82b3473b6b8..2c38b3a1d518 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1330,6 +1330,30 @@ static int pci_default_setup(struct serial_private *priv, return setup_port(priv, port, bar, offset, board->reg_shift); } +static int pci_pericom_setup(struct serial_private *priv, + const struct pciserial_board *board, + struct uart_8250_port *port, int idx) +{ + unsigned int bar, offset = board->first_offset, maxnr; + + bar = FL_GET_BASE(board->flags); + if (board->flags & FL_BASE_BARS) + bar += idx; + else + offset += idx * board->uart_offset; + + if (idx==3) + offset = 0x38; + + maxnr = (pci_resource_len(priv->dev, bar) - board->first_offset) >> + (board->reg_shift + 3); + + if (board->flags & FL_REGION_SZ_CAP && idx >= maxnr) + return 1; + + return setup_port(priv, port, bar, offset, board->reg_shift); +} + static int ce4100_serial_setup(struct serial_private *priv, const struct pciserial_board *board, @@ -2097,6 +2121,16 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .exit = pci_plx9050_exit, }, /* + * Pericom (Only 7954 - It have a offset jump for port 4) + */ + { + .vendor = PCI_VENDOR_ID_PERICOM, + .device = PCI_DEVICE_ID_PERICOM_PI7C9X7954, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + /* * PLX */ { @@ -2126,6 +2160,111 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .setup = pci_default_setup, .exit = pci_plx9050_exit, }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SDB, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4S, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4DB, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_4, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SMDB, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_MPCIE_COM_4SM, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_4, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_4, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_4, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_4, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_COM422_4, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_COM485_4, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SM, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, + { + .vendor = PCI_VENDOR_ID_ACCESIO, + .device = PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4SM, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_pericom_setup, + }, /* * SBS Technologies, Inc., PMC-OCTALPRO 232 */ @@ -4976,10 +5115,10 @@ static struct pci_device_id serial_pci_tbl[] = { */ { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SDB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2S, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SDB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7954 }, @@ -4988,10 +5127,10 @@ static struct pci_device_id serial_pci_tbl[] = { pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_2DB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM232_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4DB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7954 }, @@ -5000,10 +5139,10 @@ static struct pci_device_id serial_pci_tbl[] = { pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_2SMDB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_COM_2SM, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SMDB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7954 }, @@ -5012,13 +5151,13 @@ static struct pci_device_id serial_pci_tbl[] = { pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7951 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM485_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM422_4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7954 }, @@ -5027,16 +5166,16 @@ static struct pci_device_id serial_pci_tbl[] = { pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2S, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7954 }, @@ -5045,13 +5184,13 @@ static struct pci_device_id serial_pci_tbl[] = { pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_2SM, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7954 }, + pbn_pericom_PI7C9X7952 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM422_4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7958 }, + pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM485_4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7958 }, + pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM422_8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7958 }, @@ -5060,19 +5199,19 @@ static struct pci_device_id serial_pci_tbl[] = { pbn_pericom_PI7C9X7958 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7958 }, + pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM232_8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7958 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_4SM, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7958 }, + pbn_pericom_PI7C9X7954 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_COM_8SM, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_pericom_PI7C9X7958 }, { PCI_VENDOR_ID_ACCESIO, PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4SM, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - pbn_pericom_PI7C9X7958 }, + pbn_pericom_PI7C9X7954 }, /* * Topic TP560 Data/Fax/Voice 56k modem (reported by Evan Clarke) */ diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 5a341b1c65c3..ef688aadb032 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -175,6 +175,8 @@ struct atmel_uart_port { unsigned int pending_status; spinlock_t lock_suspended; + bool hd_start_rx; /* can start RX during half-duplex operation */ + int (*prepare_rx)(struct uart_port *port); int (*prepare_tx)(struct uart_port *port); void (*schedule_rx)(struct uart_port *port); @@ -241,6 +243,12 @@ static inline void atmel_uart_write_char(struct uart_port *port, u8 value) #endif +static inline int atmel_uart_is_half_duplex(struct uart_port *port) +{ + return (port->rs485.flags & SER_RS485_ENABLED) && + !(port->rs485.flags & SER_RS485_RX_DURING_TX); +} + #ifdef CONFIG_SERIAL_ATMEL_PDC static bool atmel_use_pdc_rx(struct uart_port *port) { @@ -492,9 +500,9 @@ static void atmel_stop_tx(struct uart_port *port) /* Disable interrupts */ atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); - if ((port->rs485.flags & SER_RS485_ENABLED) && - !(port->rs485.flags & SER_RS485_RX_DURING_TX)) + if (atmel_uart_is_half_duplex(port)) atmel_start_rx(port); + } /* @@ -511,8 +519,7 @@ static void atmel_start_tx(struct uart_port *port) return; if (atmel_use_pdc_tx(port) || atmel_use_dma_tx(port)) - if ((port->rs485.flags & SER_RS485_ENABLED) && - !(port->rs485.flags & SER_RS485_RX_DURING_TX)) + if (atmel_uart_is_half_duplex(port)) atmel_stop_rx(port); if (atmel_use_pdc_tx(port)) @@ -809,10 +816,14 @@ static void atmel_complete_tx_dma(void *arg) */ if (!uart_circ_empty(xmit)) atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx); - else if ((port->rs485.flags & SER_RS485_ENABLED) && - !(port->rs485.flags & SER_RS485_RX_DURING_TX)) { - /* DMA done, stop TX, start RX for RS485 */ - atmel_start_rx(port); + else if (atmel_uart_is_half_duplex(port)) { + /* + * DMA done, re-enable TXEMPTY and signal that we can stop + * TX and start RX for RS485 + */ + atmel_port->hd_start_rx = true; + atmel_uart_writel(port, ATMEL_US_IER, + atmel_port->tx_done_mask); } spin_unlock_irqrestore(&port->lock, flags); @@ -1166,6 +1177,10 @@ static int atmel_prepare_rx_dma(struct uart_port *port) sg_dma_len(&atmel_port->sg_rx)/2, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT); + if (!desc) { + dev_err(port->dev, "Preparing DMA cyclic failed\n"); + goto chan_err; + } desc->callback = atmel_complete_rx_dma; desc->callback_param = port; atmel_port->desc_rx = desc; @@ -1253,9 +1268,20 @@ atmel_handle_transmit(struct uart_port *port, unsigned int pending) struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (pending & atmel_port->tx_done_mask) { - /* Either PDC or interrupt transmission */ atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask); + + /* Start RX if flag was set and FIFO is empty */ + if (atmel_port->hd_start_rx) { + if (!(atmel_uart_readl(port, ATMEL_US_CSR) + & ATMEL_US_TXEMPTY)) + dev_warn(port->dev, "Should start RX, but TX fifo is not empty\n"); + + atmel_port->hd_start_rx = false; + atmel_start_rx(port); + return; + } + atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx); } } @@ -1382,8 +1408,7 @@ static void atmel_tx_pdc(struct uart_port *port) atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask); } else { - if ((port->rs485.flags & SER_RS485_ENABLED) && - !(port->rs485.flags & SER_RS485_RX_DURING_TX)) { + if (atmel_uart_is_half_duplex(port)) { /* DMA done, stop TX, start RX for RS485 */ atmel_start_rx(port); } diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c index f2b0d8cee8ef..0314e78e31ff 100644 --- a/drivers/tty/serial/kgdboc.c +++ b/drivers/tty/serial/kgdboc.c @@ -148,8 +148,10 @@ static int configure_kgdboc(void) char *cptr = config; struct console *cons; - if (!strlen(config) || isspace(config[0])) + if (!strlen(config) || isspace(config[0])) { + err = 0; goto noconfig; + } kgdboc_io_ops.is_console = 0; kgdb_tty_driver = NULL; diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 8a3e92638e10..5331baf3f699 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -1323,6 +1323,8 @@ static int max310x_spi_probe(struct spi_device *spi) if (spi->dev.of_node) { const struct of_device_id *of_id = of_match_device(max310x_dt_ids, &spi->dev); + if (!of_id) + return -ENODEV; devtype = (struct max310x_devtype *)of_id->data; } else { diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 6ff53b604ff6..bcb997935c5e 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -834,19 +834,9 @@ static void sci_transmit_chars(struct uart_port *port) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); - if (uart_circ_empty(xmit)) { + if (uart_circ_empty(xmit)) sci_stop_tx(port); - } else { - ctrl = serial_port_in(port, SCSCR); - - if (port->type != PORT_SCI) { - serial_port_in(port, SCxSR); /* Dummy read */ - sci_clear_SCxSR(port, SCxSR_TDxE_CLEAR(port)); - } - ctrl |= SCSCR_TIE; - serial_port_out(port, SCSCR, ctrl); - } } /* On SH3, SCIF may read end-of-break as a space->mark char */ diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c index 699447aa8b43..747560feb63e 100644 --- a/drivers/tty/serial/sprd_serial.c +++ b/drivers/tty/serial/sprd_serial.c @@ -36,7 +36,7 @@ #define SPRD_FIFO_SIZE 128 #define SPRD_DEF_RATE 26000000 #define SPRD_BAUD_IO_LIMIT 3000000 -#define SPRD_TIMEOUT 256 +#define SPRD_TIMEOUT 256000 /* the offset of serial registers and BITs for them */ /* data registers */ @@ -63,6 +63,7 @@ /* interrupt clear register */ #define SPRD_ICLR 0x0014 +#define SPRD_ICLR_TIMEOUT BIT(13) /* line control register */ #define SPRD_LCR 0x0018 @@ -298,7 +299,8 @@ static irqreturn_t sprd_handle_irq(int irq, void *dev_id) return IRQ_NONE; } - serial_out(port, SPRD_ICLR, ~0); + if (ims & SPRD_IMSR_TIMEOUT) + serial_out(port, SPRD_ICLR, SPRD_ICLR_TIMEOUT); if (ims & (SPRD_IMSR_RX_FIFO_FULL | SPRD_IMSR_BREAK_DETECT | SPRD_IMSR_TIMEOUT)) diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index 7333d64f68f2..eb61a07fcbbc 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -362,7 +362,13 @@ static irqreturn_t cdns_uart_isr(int irq, void *dev_id) cdns_uart_handle_tx(dev_id); isrstatus &= ~CDNS_UART_IXR_TXEMPTY; } - if (isrstatus & CDNS_UART_IXR_RXMASK) + + /* + * Skip RX processing if RX is disabled as RXEMPTY will never be set + * as read bytes will not be removed from the FIFO. + */ + if (isrstatus & CDNS_UART_IXR_RXMASK && + !(readl(port->membase + CDNS_UART_CR) & CDNS_UART_CR_RX_DIS)) cdns_uart_handle_rx(dev_id, isrstatus); spin_unlock(&port->lock); @@ -1255,7 +1261,7 @@ static void cdns_uart_console_write(struct console *co, const char *s, * * Return: 0 on success, negative errno otherwise. */ -static int __init cdns_uart_console_setup(struct console *co, char *options) +static int cdns_uart_console_setup(struct console *co, char *options) { struct uart_port *port = &cdns_uart_port[co->index]; int baud = 9600; diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 41b9a7ccce08..ca9c82ee6c35 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -25,7 +25,7 @@ * Byte threshold to limit memory consumption for flip buffers. * The actual memory limit is > 2x this amount. */ -#define TTYB_DEFAULT_MEM_LIMIT 65536 +#define TTYB_DEFAULT_MEM_LIMIT (640 * 1024UL) /* * We default to dicing tty buffer allocations to this many characters diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 19fe1e8fc124..15e0116e1232 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -520,6 +520,8 @@ void proc_clear_tty(struct task_struct *p) tty_kref_put(tty); } +extern void tty_sysctl_init(void); + /** * proc_set_tty - set the controlling terminal * @@ -3705,6 +3707,7 @@ void console_sysfs_notify(void) */ int __init tty_init(void) { + tty_sysctl_init(); cdev_init(&tty_cdev, &tty_fops); if (cdev_add(&tty_cdev, MKDEV(TTYAUX_MAJOR, 0), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 0), 1, "/dev/tty") < 0) diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index 4ab518d43758..3eb3f2a03bbb 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -155,6 +155,13 @@ static void put_ldops(struct tty_ldisc_ops *ldops) * takes tty_ldiscs_lock to guard against ldisc races */ +#if defined(CONFIG_LDISC_AUTOLOAD) + #define INITIAL_AUTOLOAD_STATE 1 +#else + #define INITIAL_AUTOLOAD_STATE 0 +#endif +static int tty_ldisc_autoload = INITIAL_AUTOLOAD_STATE; + static struct tty_ldisc *tty_ldisc_get(struct tty_struct *tty, int disc) { struct tty_ldisc *ld; @@ -169,6 +176,8 @@ static struct tty_ldisc *tty_ldisc_get(struct tty_struct *tty, int disc) */ ldops = get_ldops(disc); if (IS_ERR(ldops)) { + if (!capable(CAP_SYS_MODULE) && !tty_ldisc_autoload) + return ERR_PTR(-EPERM); request_module("tty-ldisc-%d", disc); ldops = get_ldops(disc); if (IS_ERR(ldops)) @@ -774,3 +783,41 @@ void tty_ldisc_deinit(struct tty_struct *tty) tty_ldisc_put(tty->ldisc); tty->ldisc = NULL; } + +static int zero; +static int one = 1; +static struct ctl_table tty_table[] = { + { + .procname = "ldisc_autoload", + .data = &tty_ldisc_autoload, + .maxlen = sizeof(tty_ldisc_autoload), + .mode = 0644, + .proc_handler = proc_dointvec, + .extra1 = &zero, + .extra2 = &one, + }, + { } +}; + +static struct ctl_table tty_dir_table[] = { + { + .procname = "tty", + .mode = 0555, + .child = tty_table, + }, + { } +}; + +static struct ctl_table tty_root_table[] = { + { + .procname = "dev", + .mode = 0555, + .child = tty_dir_table, + }, + { } +}; + +void tty_sysctl_init(void) +{ + register_sysctl_table(tty_root_table); +} diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 64c6af2c8559..e96e3a5808b3 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -901,8 +901,15 @@ static int ci_hdrc_probe(struct platform_device *pdev) } else if (ci->platdata->usb_phy) { ci->usb_phy = ci->platdata->usb_phy; } else { + ci->usb_phy = devm_usb_get_phy_by_phandle(dev->parent, "phys", + 0); ci->phy = devm_phy_get(dev->parent, "usb-phy"); - ci->usb_phy = devm_usb_get_phy(dev->parent, USB_PHY_TYPE_USB2); + + /* Fallback to grabbing any registered USB2 PHY */ + if (IS_ERR(ci->usb_phy) && + PTR_ERR(ci->usb_phy) != -EPROBE_DEFER) + ci->usb_phy = devm_usb_get_phy(dev->parent, + USB_PHY_TYPE_USB2); /* if both generic PHY and USB PHY layers aren't enabled */ if (PTR_ERR(ci->phy) == -ENOSYS && diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c index 5ef8da6e67c3..64c76403a542 100644 --- a/drivers/usb/common/common.c +++ b/drivers/usb/common/common.c @@ -148,6 +148,8 @@ enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0) do { controller = of_find_node_with_property(controller, "phys"); + if (!of_device_is_available(controller)) + continue; index = 0; do { if (arg0 == -1) { diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 72ce801a2927..f7ed8fd9271a 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -1008,6 +1008,7 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data) * condition with req->complete callback. */ usb_ep_dequeue(ep->ep, req); + wait_for_completion(&done); interrupted = ep->status < 0; } diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c index 5815120c0402..8e83649f77ce 100644 --- a/drivers/usb/gadget/function/f_hid.c +++ b/drivers/usb/gadget/function/f_hid.c @@ -340,20 +340,20 @@ try_again: req->complete = f_hidg_req_complete; req->context = hidg; + spin_unlock_irqrestore(&hidg->write_spinlock, flags); + status = usb_ep_queue(hidg->in_ep, hidg->req, GFP_ATOMIC); if (status < 0) { ERROR(hidg->func.config->cdev, "usb_ep_queue error on int endpoint %zd\n", status); - goto release_write_pending_unlocked; + goto release_write_pending; } else { status = count; } - spin_unlock_irqrestore(&hidg->write_spinlock, flags); return status; release_write_pending: spin_lock_irqsave(&hidg->write_spinlock, flags); -release_write_pending_unlocked: hidg->write_pending = 0; spin_unlock_irqrestore(&hidg->write_spinlock, flags); diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c index 0e4535e632ec..64ee8154f2bb 100644 --- a/drivers/usb/host/xhci-rcar.c +++ b/drivers/usb/host/xhci-rcar.c @@ -192,5 +192,6 @@ int xhci_rcar_init_quirk(struct usb_hcd *hcd) xhci_rcar_is_gen3(hcd->self.controller)) xhci->quirks |= XHCI_NO_64BIT_SUPPORT; + xhci->quirks |= XHCI_TRUST_TX_LENGTH; return xhci_rcar_download_firmware(hcd); } diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index f4e34a75d413..879d82223068 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1645,10 +1645,13 @@ static void handle_port_status(struct xhci_hcd *xhci, } } - if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_U0 && - DEV_SUPERSPEED_ANY(temp)) { + if ((temp & PORT_PLC) && + DEV_SUPERSPEED_ANY(temp) && + ((temp & PORT_PLS_MASK) == XDEV_U0 || + (temp & PORT_PLS_MASK) == XDEV_U1 || + (temp & PORT_PLS_MASK) == XDEV_U2)) { xhci_dbg(xhci, "resume SS port %d finished\n", port_id); - /* We've just brought the device into U0 through either the + /* We've just brought the device into U0/1/2 through either the * Resume state after a device remote wakeup, or through the * U3Exit state after a host-initiated resume. If it's a device * initiated remote wake, don't pass up the link state change, diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index e679fec9ce3a..de4771ce0df6 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -311,6 +311,7 @@ struct xhci_op_regs { */ #define PORT_PLS_MASK (0xf << 5) #define XDEV_U0 (0x0 << 5) +#define XDEV_U1 (0x1 << 5) #define XDEV_U2 (0x2 << 5) #define XDEV_U3 (0x3 << 5) #define XDEV_INACTIVE (0x6 << 5) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 7bbf2ca73f68..40c58145bf80 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -77,6 +77,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */ { USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */ { USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */ + { USB_DEVICE(0x10C4, 0x8056) }, /* Lorenz Messtechnik devices */ { USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */ { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */ { USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */ diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index b88a72220acd..f54931aa7528 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -604,6 +604,8 @@ static const struct usb_device_id id_table_combined[] = { .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLXM_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLX_PLUS_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_NT_ORION_IO_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SYNAPSE_SS200_PID) }, { USB_DEVICE(FTDI_VID, FTDI_CUSTOMWARE_MINIPLEX_PID) }, { USB_DEVICE(FTDI_VID, FTDI_CUSTOMWARE_MINIPLEX2_PID) }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index ddf5ab983dc9..15d220eaf6e6 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -566,7 +566,9 @@ /* * NovaTech product ids (FTDI_VID) */ -#define FTDI_NT_ORIONLXM_PID 0x7c90 /* OrionLXm Substation Automation Platform */ +#define FTDI_NT_ORIONLXM_PID 0x7c90 /* OrionLXm Substation Automation Platform */ +#define FTDI_NT_ORIONLX_PLUS_PID 0x7c91 /* OrionLX+ Substation Automation Platform */ +#define FTDI_NT_ORION_IO_PID 0x7c92 /* Orion I/O */ /* * Synapse Wireless product ids (FTDI_VID) diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 135eb04368f9..ea20322e1416 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -368,8 +368,6 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport, if (!urbtrack) return -ENOMEM; - kref_get(&mos_parport->ref_count); - urbtrack->mos_parport = mos_parport; urbtrack->urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urbtrack->urb) { kfree(urbtrack); @@ -390,6 +388,8 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport, usb_sndctrlpipe(usbdev, 0), (unsigned char *)urbtrack->setup, NULL, 0, async_complete, urbtrack); + kref_get(&mos_parport->ref_count); + urbtrack->mos_parport = mos_parport; kref_init(&urbtrack->ref_count); INIT_LIST_HEAD(&urbtrack->urblist_entry); diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index b2b7c12e5c86..9f96dd274370 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1066,7 +1066,8 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(3) }, { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */ - { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */ + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000), /* SIMCom SIM5218 */ + .driver_info = NCTRL(0) | NCTRL(1) | NCTRL(2) | NCTRL(3) | RSVD(4) }, /* Quectel products using Qualcomm vendor ID */ { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)}, { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20), @@ -1941,10 +1942,12 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(4) }, { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff), /* D-Link DWM-222 */ .driver_info = RSVD(4) }, - { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ - { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ - { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */ - { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /* OLICARD300 - MT6225 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */ + { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2031, 0xff), /* Olicard 600 */ + .driver_info = RSVD(4) }, + { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /* OLICARD300 - MT6225 */ { USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) }, { USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) }, { USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD200, 0xff, 0xff, 0xff) }, diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 72e914de473e..3cefd602b5b1 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -640,7 +640,7 @@ static int vhost_vsock_set_cid(struct vhost_vsock *vsock, u64 guest_cid) hash_del_rcu(&vsock->hash); vsock->guest_cid = guest_cid; - hash_add_rcu(vhost_vsock_hash, &vsock->hash, guest_cid); + hash_add_rcu(vhost_vsock_hash, &vsock->hash, vsock->guest_cid); spin_unlock_bh(&vhost_vsock_lock); return 0; diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index d95ae092f154..baa1510a5298 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -54,10 +54,11 @@ static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness) if (err < 0) dev_err(pb->dev, "failed to enable power supply\n"); + pwm_enable(pb->pwm); + if (pb->enable_gpio) gpiod_set_value_cansleep(pb->enable_gpio, 1); - pwm_enable(pb->pwm); pb->enabled = true; } @@ -66,12 +67,12 @@ static void pwm_backlight_power_off(struct pwm_bl_data *pb) if (!pb->enabled) return; - pwm_config(pb->pwm, 0, pb->period); - pwm_disable(pb->pwm); - if (pb->enable_gpio) gpiod_set_value_cansleep(pb->enable_gpio, 0); + pwm_config(pb->pwm, 0, pb->period); + pwm_disable(pb->pwm); + regulator_disable(pb->power_supply); pb->enabled = false; } diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index a1d93151c059..c928190666ac 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -425,6 +425,9 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, { unsigned int x; + if (image->width > info->var.xres || image->height > info->var.yres) + return; + if (rotate == FB_ROTATE_UR) { for (x = 0; x < num && image->dx + image->width <= info->var.xres; diff --git a/drivers/video/fbdev/goldfishfb.c b/drivers/video/fbdev/goldfishfb.c index 14a93cb21310..66d58e93bc32 100644 --- a/drivers/video/fbdev/goldfishfb.c +++ b/drivers/video/fbdev/goldfishfb.c @@ -234,7 +234,7 @@ static int goldfish_fb_probe(struct platform_device *pdev) fb->fb.var.activate = FB_ACTIVATE_NOW; fb->fb.var.height = readl(fb->reg_base + FB_GET_PHYS_HEIGHT); fb->fb.var.width = readl(fb->reg_base + FB_GET_PHYS_WIDTH); - fb->fb.var.pixclock = 10000; + fb->fb.var.pixclock = 0; fb->fb.var.red.offset = 11; fb->fb.var.red.length = 5; diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 8977f40ea441..2f09294c5946 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -1040,6 +1040,8 @@ struct virtqueue *vring_create_virtqueue( GFP_KERNEL|__GFP_NOWARN|__GFP_ZERO); if (queue) break; + if (!may_reduce_num) + return NULL; } if (!num) diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 072e7599583a..a8ff43068619 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -59,6 +59,8 @@ enum { Opt_cache_loose, Opt_fscache, Opt_mmap, /* Access options */ Opt_access, Opt_posixacl, + /* Lock timeout option */ + Opt_locktimeout, /* Error token */ Opt_err }; @@ -78,6 +80,7 @@ static const match_table_t tokens = { {Opt_cachetag, "cachetag=%s"}, {Opt_access, "access=%s"}, {Opt_posixacl, "posixacl"}, + {Opt_locktimeout, "locktimeout=%u"}, {Opt_err, NULL} }; @@ -126,6 +129,7 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) #ifdef CONFIG_9P_FSCACHE v9ses->cachetag = NULL; #endif + v9ses->session_lock_timeout = P9_LOCK_TIMEOUT; if (!opts) return 0; @@ -298,6 +302,23 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts) #endif break; + case Opt_locktimeout: + r = match_int(&args[0], &option); + if (r < 0) { + p9_debug(P9_DEBUG_ERROR, + "integer field, but no integer?\n"); + ret = r; + continue; + } + if (option < 1) { + p9_debug(P9_DEBUG_ERROR, + "locktimeout must be a greater than zero integer.\n"); + ret = -EINVAL; + continue; + } + v9ses->session_lock_timeout = (long)option * HZ; + break; + default: continue; } diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h index 443d12e02043..ce6ca9f4f683 100644 --- a/fs/9p/v9fs.h +++ b/fs/9p/v9fs.h @@ -116,6 +116,7 @@ struct v9fs_session_info { struct list_head slist; /* list of sessions registered with v9fs */ struct backing_dev_info bdi; struct rw_semaphore rename_sem; + long session_lock_timeout; /* retry interval for blocking locks */ }; /* cache_validity flags */ diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h index 5a0db6dec8d1..aaee1e6584e6 100644 --- a/fs/9p/v9fs_vfs.h +++ b/fs/9p/v9fs_vfs.h @@ -40,6 +40,9 @@ */ #define P9_LOCK_TIMEOUT (30*HZ) +/* flags for v9fs_stat2inode() & v9fs_stat2inode_dotl() */ +#define V9FS_STAT2INODE_KEEP_ISIZE 1 + extern struct file_system_type v9fs_fs_type; extern const struct address_space_operations v9fs_addr_operations; extern const struct file_operations v9fs_file_operations; @@ -61,8 +64,10 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses, struct inode *inode, umode_t mode, dev_t); void v9fs_evict_inode(struct inode *inode); ino_t v9fs_qid2ino(struct p9_qid *qid); -void v9fs_stat2inode(struct p9_wstat *, struct inode *, struct super_block *); -void v9fs_stat2inode_dotl(struct p9_stat_dotl *, struct inode *); +void v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, + struct super_block *sb, unsigned int flags); +void v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode, + unsigned int flags); int v9fs_dir_release(struct inode *inode, struct file *filp); int v9fs_file_open(struct inode *inode, struct file *file); void v9fs_inode2stat(struct inode *inode, struct p9_wstat *stat); @@ -83,4 +88,18 @@ static inline void v9fs_invalidate_inode_attr(struct inode *inode) } int v9fs_open_to_dotl_flags(int flags); + +static inline void v9fs_i_size_write(struct inode *inode, loff_t i_size) +{ + /* + * 32-bit need the lock, concurrent updates could break the + * sequences and make i_size_read() loop forever. + * 64-bit updates are atomic and can skip the locking. + */ + if (sizeof(i_size) > sizeof(long)) + spin_lock(&inode->i_lock); + i_size_write(inode, i_size); + if (sizeof(i_size) > sizeof(long)) + spin_unlock(&inode->i_lock); +} #endif diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c index 48db9a9f13f9..cb6c4031af55 100644 --- a/fs/9p/vfs_dir.c +++ b/fs/9p/vfs_dir.c @@ -105,7 +105,6 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx) int err = 0; struct p9_fid *fid; int buflen; - int reclen = 0; struct p9_rdir *rdir; struct kvec kvec; @@ -138,11 +137,10 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx) while (rdir->head < rdir->tail) { err = p9stat_read(fid->clnt, rdir->buf + rdir->head, rdir->tail - rdir->head, &st); - if (err) { + if (err <= 0) { p9_debug(P9_DEBUG_VFS, "returned %d\n", err); return -EIO; } - reclen = st.size+2; over = !dir_emit(ctx, st.name, strlen(st.name), v9fs_qid2ino(&st.qid), dt_type(&st)); @@ -150,8 +148,8 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx) if (over) return 0; - rdir->head += reclen; - ctx->pos += reclen; + rdir->head += err; + ctx->pos += err; } } } diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 398a3eddb2df..79ff727254bb 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -154,6 +154,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl) uint8_t status = P9_LOCK_ERROR; int res = 0; unsigned char fl_type; + struct v9fs_session_info *v9ses; fid = filp->private_data; BUG_ON(fid == NULL); @@ -189,6 +190,8 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl) if (IS_SETLKW(cmd)) flock.flags = P9_LOCK_FLAGS_BLOCK; + v9ses = v9fs_inode2v9ses(file_inode(filp)); + /* * if its a blocked request and we get P9_LOCK_BLOCKED as the status * for lock request, keep on trying @@ -202,7 +205,8 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl) break; if (status == P9_LOCK_BLOCKED && !IS_SETLKW(cmd)) break; - if (schedule_timeout_interruptible(P9_LOCK_TIMEOUT) != 0) + if (schedule_timeout_interruptible(v9ses->session_lock_timeout) + != 0) break; /* * p9_client_lock_dotl overwrites flock.client_id with the @@ -442,7 +446,11 @@ v9fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) i_size = i_size_read(inode); if (iocb->ki_pos > i_size) { inode_add_bytes(inode, iocb->ki_pos - i_size); - i_size_write(inode, iocb->ki_pos); + /* + * Need to serialize against i_size_write() in + * v9fs_stat2inode() + */ + v9fs_i_size_write(inode, iocb->ki_pos); } return retval; } diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index f8ab4a66acaf..ddd1eb6aedee 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -538,7 +538,7 @@ static struct inode *v9fs_qid_iget(struct super_block *sb, if (retval) goto error; - v9fs_stat2inode(st, inode, sb); + v9fs_stat2inode(st, inode, sb, 0); v9fs_cache_inode_get_cookie(inode); unlock_new_inode(inode); return inode; @@ -1078,7 +1078,7 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, if (IS_ERR(st)) return PTR_ERR(st); - v9fs_stat2inode(st, d_inode(dentry), dentry->d_sb); + v9fs_stat2inode(st, d_inode(dentry), dentry->d_sb, 0); generic_fillattr(d_inode(dentry), stat); p9stat_free(st); @@ -1156,12 +1156,13 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr) * @stat: Plan 9 metadata (mistat) structure * @inode: inode to populate * @sb: superblock of filesystem + * @flags: control flags (e.g. V9FS_STAT2INODE_KEEP_ISIZE) * */ void v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, - struct super_block *sb) + struct super_block *sb, unsigned int flags) { umode_t mode; char ext[32]; @@ -1202,10 +1203,11 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, mode = p9mode2perm(v9ses, stat); mode |= inode->i_mode & ~S_IALLUGO; inode->i_mode = mode; - i_size_write(inode, stat->length); + if (!(flags & V9FS_STAT2INODE_KEEP_ISIZE)) + v9fs_i_size_write(inode, stat->length); /* not real number of blocks, but 512 byte ones ... */ - inode->i_blocks = (i_size_read(inode) + 512 - 1) >> 9; + inode->i_blocks = (stat->length + 512 - 1) >> 9; v9inode->cache_validity &= ~V9FS_INO_INVALID_ATTR; } @@ -1402,9 +1404,9 @@ int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode) { int umode; dev_t rdev; - loff_t i_size; struct p9_wstat *st; struct v9fs_session_info *v9ses; + unsigned int flags; v9ses = v9fs_inode2v9ses(inode); st = p9_client_stat(fid); @@ -1417,16 +1419,13 @@ int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode) if ((inode->i_mode & S_IFMT) != (umode & S_IFMT)) goto out; - spin_lock(&inode->i_lock); /* * We don't want to refresh inode->i_size, * because we may have cached data */ - i_size = inode->i_size; - v9fs_stat2inode(st, inode, inode->i_sb); - if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) - inode->i_size = i_size; - spin_unlock(&inode->i_lock); + flags = (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) ? + V9FS_STAT2INODE_KEEP_ISIZE : 0; + v9fs_stat2inode(st, inode, inode->i_sb, flags); out: p9stat_free(st); kfree(st); diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c index c3dd0d42bb3a..425bc1a2b8c1 100644 --- a/fs/9p/vfs_inode_dotl.c +++ b/fs/9p/vfs_inode_dotl.c @@ -143,7 +143,7 @@ static struct inode *v9fs_qid_iget_dotl(struct super_block *sb, if (retval) goto error; - v9fs_stat2inode_dotl(st, inode); + v9fs_stat2inode_dotl(st, inode, 0); v9fs_cache_inode_get_cookie(inode); retval = v9fs_get_acl(inode, fid); if (retval) @@ -496,7 +496,7 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry, if (IS_ERR(st)) return PTR_ERR(st); - v9fs_stat2inode_dotl(st, d_inode(dentry)); + v9fs_stat2inode_dotl(st, d_inode(dentry), 0); generic_fillattr(d_inode(dentry), stat); /* Change block size to what the server returned */ stat->blksize = st->st_blksize; @@ -607,11 +607,13 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr) * v9fs_stat2inode_dotl - populate an inode structure with stat info * @stat: stat structure * @inode: inode to populate + * @flags: ctrl flags (e.g. V9FS_STAT2INODE_KEEP_ISIZE) * */ void -v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode) +v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode, + unsigned int flags) { umode_t mode; struct v9fs_inode *v9inode = V9FS_I(inode); @@ -631,7 +633,8 @@ v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode) mode |= inode->i_mode & ~S_IALLUGO; inode->i_mode = mode; - i_size_write(inode, stat->st_size); + if (!(flags & V9FS_STAT2INODE_KEEP_ISIZE)) + v9fs_i_size_write(inode, stat->st_size); inode->i_blocks = stat->st_blocks; } else { if (stat->st_result_mask & P9_STATS_ATIME) { @@ -661,8 +664,9 @@ v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode) } if (stat->st_result_mask & P9_STATS_RDEV) inode->i_rdev = new_decode_dev(stat->st_rdev); - if (stat->st_result_mask & P9_STATS_SIZE) - i_size_write(inode, stat->st_size); + if (!(flags & V9FS_STAT2INODE_KEEP_ISIZE) && + stat->st_result_mask & P9_STATS_SIZE) + v9fs_i_size_write(inode, stat->st_size); if (stat->st_result_mask & P9_STATS_BLOCKS) inode->i_blocks = stat->st_blocks; } @@ -928,9 +932,9 @@ v9fs_vfs_get_link_dotl(struct dentry *dentry, int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode) { - loff_t i_size; struct p9_stat_dotl *st; struct v9fs_session_info *v9ses; + unsigned int flags; v9ses = v9fs_inode2v9ses(inode); st = p9_client_getattr_dotl(fid, P9_STATS_ALL); @@ -942,16 +946,13 @@ int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode) if ((inode->i_mode & S_IFMT) != (st->st_mode & S_IFMT)) goto out; - spin_lock(&inode->i_lock); /* * We don't want to refresh inode->i_size, * because we may have cached data */ - i_size = inode->i_size; - v9fs_stat2inode_dotl(st, inode); - if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) - inode->i_size = i_size; - spin_unlock(&inode->i_lock); + flags = (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) ? + V9FS_STAT2INODE_KEEP_ISIZE : 0; + v9fs_stat2inode_dotl(st, inode, flags); out: kfree(st); return 0; diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index de3ed8629196..06ff1a9089e8 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -165,7 +165,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags, goto release_sb; } d_inode(root)->i_ino = v9fs_qid2ino(&st->qid); - v9fs_stat2inode_dotl(st, d_inode(root)); + v9fs_stat2inode_dotl(st, d_inode(root), 0); kfree(st); } else { struct p9_wstat *st = NULL; @@ -176,7 +176,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags, } d_inode(root)->i_ino = v9fs_qid2ino(&st->qid); - v9fs_stat2inode(st, d_inode(root), sb); + v9fs_stat2inode(st, d_inode(root), sb, 0); p9stat_free(st); kfree(st); diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 5c5c389d8fed..4d901200be13 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3018,11 +3018,11 @@ static int __do_readpage(struct extent_io_tree *tree, */ if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags) && prev_em_start && *prev_em_start != (u64)-1 && - *prev_em_start != em->orig_start) + *prev_em_start != em->start) force_bio_submit = true; if (prev_em_start) - *prev_em_start = em->orig_start; + *prev_em_start = em->start; free_extent_map(em); em = NULL; diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 242584a0d3b5..a67143c579aa 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -385,6 +385,16 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) if (!capable(CAP_SYS_ADMIN)) return -EPERM; + /* + * If the fs is mounted with nologreplay, which requires it to be + * mounted in RO mode as well, we can not allow discard on free space + * inside block groups, because log trees refer to extents that are not + * pinned in a block group's free space cache (pinning the extents is + * precisely the first phase of replaying a log tree). + */ + if (btrfs_test_opt(fs_info, NOLOGREPLAY)) + return -EROFS; + rcu_read_lock(); list_for_each_entry_rcu(device, &fs_info->fs_devices->devices, dev_list) { diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index af6a776fa18c..5aa07de5750e 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -2395,8 +2395,9 @@ static noinline void finish_parity_scrub(struct btrfs_raid_bio *rbio, bitmap_clear(rbio->dbitmap, pagenr, 1); kunmap(p); - for (stripe = 0; stripe < rbio->real_stripes; stripe++) + for (stripe = 0; stripe < nr_data; stripe++) kunmap(page_in_rbio(rbio, stripe, pagenr, 0)); + kunmap(p_page); } __free_page(p_page); diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 47d11a30bee7..a36bb75383dc 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -3343,9 +3343,16 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans, } btrfs_release_path(path); - /* find the first key from this transaction again */ + /* + * Find the first key from this transaction again. See the note for + * log_new_dir_dentries, if we're logging a directory recursively we + * won't be holding its i_mutex, which means we can modify the directory + * while we're logging it. If we remove an entry between our first + * search and this search we'll not find the key again and can just + * bail. + */ ret = btrfs_search_slot(NULL, root, &min_key, path, 0, 0); - if (WARN_ON(ret != 0)) + if (ret != 0) goto done; /* diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 5aa2749eaf42..c063ac57c30e 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -6439,10 +6439,10 @@ static int btrfs_check_chunk_valid(struct btrfs_root *root, } if ((type & BTRFS_BLOCK_GROUP_RAID10 && sub_stripes != 2) || - (type & BTRFS_BLOCK_GROUP_RAID1 && num_stripes < 1) || + (type & BTRFS_BLOCK_GROUP_RAID1 && num_stripes != 2) || (type & BTRFS_BLOCK_GROUP_RAID5 && num_stripes < 2) || (type & BTRFS_BLOCK_GROUP_RAID6 && num_stripes < 3) || - (type & BTRFS_BLOCK_GROUP_DUP && num_stripes > 2) || + (type & BTRFS_BLOCK_GROUP_DUP && num_stripes != 2) || ((type & BTRFS_BLOCK_GROUP_PROFILE_MASK) == 0 && num_stripes != 1)) { btrfs_err(root->fs_info, diff --git a/fs/buffer.c b/fs/buffer.c index 76a519e4afd2..7da89d52d88f 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -3033,6 +3033,13 @@ void guard_bio_eod(int op, struct bio *bio) /* Uhhuh. We've got a bio that straddles the device size! */ truncated_bytes = bio->bi_iter.bi_size - (maxsector << 9); + /* + * The bio contains more than one segment which spans EOD, just return + * and let IO layer turn it into an EIO + */ + if (truncated_bytes > bvec->bv_len) + return; + /* Truncate the bio.. */ bio->bi_iter.bi_size -= truncated_bytes; bvec->bv_len -= truncated_bytes; diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c index 9156be545b0f..4660208132a2 100644 --- a/fs/cifs/cifs_dfs_ref.c +++ b/fs/cifs/cifs_dfs_ref.c @@ -271,9 +271,9 @@ static void dump_referral(const struct dfs_info3_param *ref) { cifs_dbg(FYI, "DFS: ref path: %s\n", ref->path_name); cifs_dbg(FYI, "DFS: node path: %s\n", ref->node_name); - cifs_dbg(FYI, "DFS: fl: %hd, srv_type: %hd\n", + cifs_dbg(FYI, "DFS: fl: %d, srv_type: %d\n", ref->flags, ref->server_type); - cifs_dbg(FYI, "DFS: ref_flags: %hd, path_consumed: %hd\n", + cifs_dbg(FYI, "DFS: ref_flags: %d, path_consumed: %d\n", ref->ref_flag, ref->path_consumed); } diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 33e65b71c49a..f291ed0c155d 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1201,6 +1201,11 @@ cifs_parse_devname(const char *devname, struct smb_vol *vol) const char *delims = "/\\"; size_t len; + if (unlikely(!devname || !*devname)) { + cifs_dbg(VFS, "Device name not specified.\n"); + return -EINVAL; + } + /* make sure we have a valid UNC double delimiter prefix */ len = strspn(devname, delims); if (len != 2) diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 8ec296308729..7d295bf283ca 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1627,8 +1627,20 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u32 type, rc = server->ops->mand_unlock_range(cfile, flock, xid); out: - if (flock->fl_flags & FL_POSIX && !rc) + if (flock->fl_flags & FL_POSIX) { + /* + * If this is a request to remove all locks because we + * are closing the file, it doesn't matter if the + * unlocking failed as both cifs.ko and the SMB server + * remove the lock on file close + */ + if (rc) { + cifs_dbg(VFS, "%s failed rc=%d\n", __func__, rc); + if (!(flock->fl_flags & FL_CLOSE)) + return rc; + } rc = locks_lock_file_wait(file, flock); + } return rc; } @@ -2797,14 +2809,16 @@ cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from) * these pages but not on the region from pos to ppos+len-1. */ written = cifs_user_writev(iocb, from); - if (written > 0 && CIFS_CACHE_READ(cinode)) { + if (CIFS_CACHE_READ(cinode)) { /* - * Windows 7 server can delay breaking level2 oplock if a write - * request comes - break it on the client to prevent reading - * an old data. + * We have read level caching and we have just sent a write + * request to the server thus making data in the cache stale. + * Zap the cache and set oplock/lease level to NONE to avoid + * reading stale data from the cache. All subsequent read + * operations will read new data from the server. */ cifs_zap_mapping(inode); - cifs_dbg(FYI, "Set no oplock for inode=%p after a write operation\n", + cifs_dbg(FYI, "Set Oplock/Lease to NONE for inode=%p after write\n", inode); cinode->oplock = 0; } diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 57c938ffeb6e..a8a2fc9ae056 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -771,43 +771,50 @@ cifs_get_inode_info(struct inode **inode, const char *full_path, } else if ((rc == -EACCES) && backup_cred(cifs_sb) && (strcmp(server->vals->version_string, SMB1_VERSION_STRING) == 0)) { - /* - * For SMB2 and later the backup intent flag is already - * sent if needed on open and there is no path based - * FindFirst operation to use to retry with - */ + /* + * For SMB2 and later the backup intent flag is already + * sent if needed on open and there is no path based + * FindFirst operation to use to retry with + */ - srchinf = kzalloc(sizeof(struct cifs_search_info), - GFP_KERNEL); - if (srchinf == NULL) { - rc = -ENOMEM; - goto cgii_exit; - } + srchinf = kzalloc(sizeof(struct cifs_search_info), + GFP_KERNEL); + if (srchinf == NULL) { + rc = -ENOMEM; + goto cgii_exit; + } - srchinf->endOfSearch = false; + srchinf->endOfSearch = false; + if (tcon->unix_ext) + srchinf->info_level = SMB_FIND_FILE_UNIX; + else if ((tcon->ses->capabilities & + tcon->ses->server->vals->cap_nt_find) == 0) + srchinf->info_level = SMB_FIND_FILE_INFO_STANDARD; + else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) srchinf->info_level = SMB_FIND_FILE_ID_FULL_DIR_INFO; + else /* no srvino useful for fallback to some netapp */ + srchinf->info_level = SMB_FIND_FILE_DIRECTORY_INFO; - srchflgs = CIFS_SEARCH_CLOSE_ALWAYS | - CIFS_SEARCH_CLOSE_AT_END | - CIFS_SEARCH_BACKUP_SEARCH; + srchflgs = CIFS_SEARCH_CLOSE_ALWAYS | + CIFS_SEARCH_CLOSE_AT_END | + CIFS_SEARCH_BACKUP_SEARCH; - rc = CIFSFindFirst(xid, tcon, full_path, - cifs_sb, NULL, srchflgs, srchinf, false); - if (!rc) { - data = - (FILE_ALL_INFO *)srchinf->srch_entries_start; + rc = CIFSFindFirst(xid, tcon, full_path, + cifs_sb, NULL, srchflgs, srchinf, false); + if (!rc) { + data = (FILE_ALL_INFO *)srchinf->srch_entries_start; - cifs_dir_info_to_fattr(&fattr, - (FILE_DIRECTORY_INFO *)data, cifs_sb); - fattr.cf_uniqueid = le64_to_cpu( - ((SEARCH_ID_FULL_DIR_INFO *)data)->UniqueId); - validinum = true; + cifs_dir_info_to_fattr(&fattr, + (FILE_DIRECTORY_INFO *)data, cifs_sb); + fattr.cf_uniqueid = le64_to_cpu( + ((SEARCH_ID_FULL_DIR_INFO *)data)->UniqueId); + validinum = true; - cifs_buf_release(srchinf->ntwrk_buf_start); - } - kfree(srchinf); - if (rc) - goto cgii_exit; + cifs_buf_release(srchinf->ntwrk_buf_start); + } + kfree(srchinf); + if (rc) + goto cgii_exit; } else goto cgii_exit; diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c index efd72e1fae74..f7a9adab0b84 100644 --- a/fs/cifs/smb1ops.c +++ b/fs/cifs/smb1ops.c @@ -305,7 +305,7 @@ coalesce_t2(char *second_buf, struct smb_hdr *target_hdr) remaining = tgt_total_cnt - total_in_tgt; if (remaining < 0) { - cifs_dbg(FYI, "Server sent too much data. tgt_total_cnt=%hu total_in_tgt=%hu\n", + cifs_dbg(FYI, "Server sent too much data. tgt_total_cnt=%hu total_in_tgt=%u\n", tgt_total_cnt, total_in_tgt); return -EPROTO; } diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c index 98c25b969ab8..7e93d5706bf6 100644 --- a/fs/cifs/smb2maperror.c +++ b/fs/cifs/smb2maperror.c @@ -1034,7 +1034,8 @@ static const struct status_to_posix_error smb2_error_map_table[] = { {STATUS_UNFINISHED_CONTEXT_DELETED, -EIO, "STATUS_UNFINISHED_CONTEXT_DELETED"}, {STATUS_NO_TGT_REPLY, -EIO, "STATUS_NO_TGT_REPLY"}, - {STATUS_OBJECTID_NOT_FOUND, -EIO, "STATUS_OBJECTID_NOT_FOUND"}, + /* Note that ENOATTTR and ENODATA are the same errno */ + {STATUS_OBJECTID_NOT_FOUND, -ENODATA, "STATUS_OBJECTID_NOT_FOUND"}, {STATUS_NO_IP_ADDRESSES, -EIO, "STATUS_NO_IP_ADDRESSES"}, {STATUS_WRONG_CREDENTIAL_HANDLE, -EIO, "STATUS_WRONG_CREDENTIAL_HANDLE"}, diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index e96a74da756f..244d27bb8fba 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -474,7 +474,6 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp, __u8 lease_state; struct list_head *tmp; struct cifsFileInfo *cfile; - struct TCP_Server_Info *server = tcon->ses->server; struct cifs_pending_open *open; struct cifsInodeInfo *cinode; int ack_req = le32_to_cpu(rsp->Flags & @@ -494,13 +493,25 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp, cifs_dbg(FYI, "lease key match, lease break 0x%x\n", le32_to_cpu(rsp->NewLeaseState)); - server->ops->set_oplock_level(cinode, lease_state, 0, NULL); - if (ack_req) cfile->oplock_break_cancelled = false; else cfile->oplock_break_cancelled = true; + set_bit(CIFS_INODE_PENDING_OPLOCK_BREAK, &cinode->flags); + + /* + * Set or clear flags depending on the lease state being READ. + * HANDLE caching flag should be added when the client starts + * to defer closing remote file handles with HANDLE leases. + */ + if (lease_state & SMB2_LEASE_READ_CACHING_HE) + set_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2, + &cinode->flags); + else + clear_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2, + &cinode->flags); + queue_work(cifsoplockd_wq, &cfile->oplock_break); kfree(lw); return true; diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 2db7968febfe..97d8e2a3df9b 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1377,6 +1377,15 @@ smb2_downgrade_oplock(struct TCP_Server_Info *server, } static void +smb21_downgrade_oplock(struct TCP_Server_Info *server, + struct cifsInodeInfo *cinode, bool set_level2) +{ + server->ops->set_oplock_level(cinode, + set_level2 ? SMB2_LEASE_READ_CACHING_HE : + 0, 0, NULL); +} + +static void smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock, unsigned int epoch, bool *purge_cache) { @@ -1681,7 +1690,7 @@ struct smb_version_operations smb21_operations = { .print_stats = smb2_print_stats, .is_oplock_break = smb2_is_valid_oplock_break, .handle_cancelled_mid = smb2_handle_cancelled_mid, - .downgrade_oplock = smb2_downgrade_oplock, + .downgrade_oplock = smb21_downgrade_oplock, .need_neg = smb2_need_neg, .negotiate = smb2_negotiate, .negotiate_wsize = smb2_negotiate_wsize, @@ -1765,7 +1774,7 @@ struct smb_version_operations smb30_operations = { .dump_share_caps = smb2_dump_share_caps, .is_oplock_break = smb2_is_valid_oplock_break, .handle_cancelled_mid = smb2_handle_cancelled_mid, - .downgrade_oplock = smb2_downgrade_oplock, + .downgrade_oplock = smb21_downgrade_oplock, .need_neg = smb2_need_neg, .negotiate = smb2_negotiate, .negotiate_wsize = smb2_negotiate_wsize, @@ -1855,7 +1864,7 @@ struct smb_version_operations smb311_operations = { .dump_share_caps = smb2_dump_share_caps, .is_oplock_break = smb2_is_valid_oplock_break, .handle_cancelled_mid = smb2_handle_cancelled_mid, - .downgrade_oplock = smb2_downgrade_oplock, + .downgrade_oplock = smb21_downgrade_oplock, .need_neg = smb2_need_neg, .negotiate = smb2_negotiate, .negotiate_wsize = smb2_negotiate_wsize, diff --git a/fs/dcache.c b/fs/dcache.c index a9784ce80ff6..ff918e257e87 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1534,7 +1534,7 @@ static void check_and_drop(void *_data) { struct detach_data *data = _data; - if (!data->mountpoint && !data->select.found) + if (!data->mountpoint && list_empty(&data->select.dispose)) __d_drop(data->select.start); } @@ -1576,17 +1576,15 @@ void d_invalidate(struct dentry *dentry) d_walk(dentry, &data, detach_and_collect, check_and_drop); - if (data.select.found) + if (!list_empty(&data.select.dispose)) shrink_dentry_list(&data.select.dispose); + else if (!data.mountpoint) + return; if (data.mountpoint) { detach_mounts(data.mountpoint); dput(data.mountpoint); } - - if (!data.mountpoint && !data.select.found) - break; - cond_resched(); } } diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index 108df2e3602c..81be3ba17cbf 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -396,6 +396,7 @@ devpts_fill_super(struct super_block *s, void *data, int silent) s->s_blocksize_bits = 10; s->s_magic = DEVPTS_SUPER_MAGIC; s->s_op = &devpts_sops; + s->s_d_op = &simple_dentry_operations; s->s_time_gran = 1; error = -ENOMEM; diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 6cb042b53b5b..6fcb29b393d3 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -724,7 +724,8 @@ static loff_t ext2_max_size(int bits) { loff_t res = EXT2_NDIR_BLOCKS; int meta_blocks; - loff_t upper_limit; + unsigned int upper_limit; + unsigned int ppb = 1 << (bits-2); /* This is calculated to be the largest file size for a * dense, file such that the total number of @@ -738,24 +739,34 @@ static loff_t ext2_max_size(int bits) /* total blocks in file system block size */ upper_limit >>= (bits - 9); + /* Compute how many blocks we can address by block tree */ + res += 1LL << (bits-2); + res += 1LL << (2*(bits-2)); + res += 1LL << (3*(bits-2)); + /* Does block tree limit file size? */ + if (res < upper_limit) + goto check_lfs; + res = upper_limit; + /* How many metadata blocks are needed for addressing upper_limit? */ + upper_limit -= EXT2_NDIR_BLOCKS; /* indirect blocks */ meta_blocks = 1; + upper_limit -= ppb; /* double indirect blocks */ - meta_blocks += 1 + (1LL << (bits-2)); - /* tripple indirect blocks */ - meta_blocks += 1 + (1LL << (bits-2)) + (1LL << (2*(bits-2))); - - upper_limit -= meta_blocks; - upper_limit <<= bits; - - res += 1LL << (bits-2); - res += 1LL << (2*(bits-2)); - res += 1LL << (3*(bits-2)); + if (upper_limit < ppb * ppb) { + meta_blocks += 1 + DIV_ROUND_UP(upper_limit, ppb); + res -= meta_blocks; + goto check_lfs; + } + meta_blocks += 1 + ppb; + upper_limit -= ppb * ppb; + /* tripple indirect blocks for the rest */ + meta_blocks += 1 + DIV_ROUND_UP(upper_limit, ppb) + + DIV_ROUND_UP(upper_limit, ppb*ppb); + res -= meta_blocks; +check_lfs: res <<= bits; - if (res > upper_limit) - res = upper_limit; - if (res > MAX_LFS_FILESIZE) res = MAX_LFS_FILESIZE; diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index f97611171023..4b7cc1af03a0 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -391,7 +391,7 @@ static inline void ext4_update_inode_fsync_trans(handle_t *handle, { struct ext4_inode_info *ei = EXT4_I(inode); - if (ext4_handle_valid(handle)) { + if (ext4_handle_valid(handle) && !is_handle_aborted(handle)) { ei->i_sync_tid = handle->h_transaction->t_tid; if (datasync) ei->i_datasync_tid = handle->h_transaction->t_tid; diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 08fca4add1e2..fe76d0957a1f 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -79,7 +79,7 @@ ext4_unaligned_aio(struct inode *inode, struct iov_iter *from, loff_t pos) struct super_block *sb = inode->i_sb; int blockmask = sb->s_blocksize - 1; - if (pos >= i_size_read(inode)) + if (pos >= ALIGN(i_size_read(inode), sb->s_blocksize)) return 0; if ((pos | iov_iter_alignment(from)) & blockmask) diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index 58229c1b4a3d..d2844fe9040d 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -1217,6 +1217,7 @@ int ext4_ind_remove_space(handle_t *handle, struct inode *inode, ext4_lblk_t offsets[4], offsets2[4]; Indirect chain[4], chain2[4]; Indirect *partial, *partial2; + Indirect *p = NULL, *p2 = NULL; ext4_lblk_t max_block; __le32 nr = 0, nr2 = 0; int n = 0, n2 = 0; @@ -1258,7 +1259,7 @@ int ext4_ind_remove_space(handle_t *handle, struct inode *inode, } - partial = ext4_find_shared(inode, n, offsets, chain, &nr); + partial = p = ext4_find_shared(inode, n, offsets, chain, &nr); if (nr) { if (partial == chain) { /* Shared branch grows from the inode */ @@ -1283,13 +1284,11 @@ int ext4_ind_remove_space(handle_t *handle, struct inode *inode, partial->p + 1, (__le32 *)partial->bh->b_data+addr_per_block, (chain+n-1) - partial); - BUFFER_TRACE(partial->bh, "call brelse"); - brelse(partial->bh); partial--; } end_range: - partial2 = ext4_find_shared(inode, n2, offsets2, chain2, &nr2); + partial2 = p2 = ext4_find_shared(inode, n2, offsets2, chain2, &nr2); if (nr2) { if (partial2 == chain2) { /* @@ -1319,16 +1318,14 @@ end_range: (__le32 *)partial2->bh->b_data, partial2->p, (chain2+n2-1) - partial2); - BUFFER_TRACE(partial2->bh, "call brelse"); - brelse(partial2->bh); partial2--; } goto do_indirects; } /* Punch happened within the same level (n == n2) */ - partial = ext4_find_shared(inode, n, offsets, chain, &nr); - partial2 = ext4_find_shared(inode, n2, offsets2, chain2, &nr2); + partial = p = ext4_find_shared(inode, n, offsets, chain, &nr); + partial2 = p2 = ext4_find_shared(inode, n2, offsets2, chain2, &nr2); /* Free top, but only if partial2 isn't its subtree. */ if (nr) { @@ -1385,11 +1382,7 @@ end_range: partial->p + 1, partial2->p, (chain+n-1) - partial); - BUFFER_TRACE(partial->bh, "call brelse"); - brelse(partial->bh); - BUFFER_TRACE(partial2->bh, "call brelse"); - brelse(partial2->bh); - return 0; + goto cleanup; } /* @@ -1404,8 +1397,6 @@ end_range: partial->p + 1, (__le32 *)partial->bh->b_data+addr_per_block, (chain+n-1) - partial); - BUFFER_TRACE(partial->bh, "call brelse"); - brelse(partial->bh); partial--; } if (partial2 > chain2 && depth2 <= depth) { @@ -1413,11 +1404,21 @@ end_range: (__le32 *)partial2->bh->b_data, partial2->p, (chain2+n2-1) - partial2); - BUFFER_TRACE(partial2->bh, "call brelse"); - brelse(partial2->bh); partial2--; } } + +cleanup: + while (p && p > chain) { + BUFFER_TRACE(p->bh, "call brelse"); + brelse(p->bh); + p--; + } + while (p2 && p2 > chain2) { + BUFFER_TRACE(p2->bh, "call brelse"); + brelse(p2->bh); + p2--; + } return 0; do_indirects: @@ -1425,7 +1426,7 @@ do_indirects: switch (offsets[0]) { default: if (++n >= n2) - return 0; + break; nr = i_data[EXT4_IND_BLOCK]; if (nr) { ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 1); @@ -1433,7 +1434,7 @@ do_indirects: } case EXT4_IND_BLOCK: if (++n >= n2) - return 0; + break; nr = i_data[EXT4_DIND_BLOCK]; if (nr) { ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 2); @@ -1441,7 +1442,7 @@ do_indirects: } case EXT4_DIND_BLOCK: if (++n >= n2) - return 0; + break; nr = i_data[EXT4_TIND_BLOCK]; if (nr) { ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 3); @@ -1450,5 +1451,5 @@ do_indirects: case EXT4_TIND_BLOCK: ; } - return 0; + goto cleanup; } diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 2880e017cd0a..2ce73287b53c 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -749,6 +749,13 @@ resizefs_out: if (!blk_queue_discard(q)) return -EOPNOTSUPP; + /* + * We haven't replayed the journal, so we cannot use our + * block-bitmap-guided storage zapping commands. + */ + if (test_opt(sb, NOLOAD) && ext4_has_feature_journal(sb)) + return -EROFS; + if (copy_from_user(&range, (struct fstrim_range __user *)arg, sizeof(range))) return -EFAULT; diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 58e6b8a03e90..aef2a24dc9f9 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -907,11 +907,18 @@ static int add_new_gdb_meta_bg(struct super_block *sb, memcpy(n_group_desc, o_group_desc, EXT4_SB(sb)->s_gdb_count * sizeof(struct buffer_head *)); n_group_desc[gdb_num] = gdb_bh; + + BUFFER_TRACE(gdb_bh, "get_write_access"); + err = ext4_journal_get_write_access(handle, gdb_bh); + if (err) { + kvfree(n_group_desc); + brelse(gdb_bh); + return err; + } + EXT4_SB(sb)->s_group_desc = n_group_desc; EXT4_SB(sb)->s_gdb_count++; kvfree(o_group_desc); - BUFFER_TRACE(gdb_bh, "get_write_access"); - err = ext4_journal_get_write_access(handle, gdb_bh); return err; } @@ -1928,7 +1935,8 @@ retry: le16_to_cpu(es->s_reserved_gdt_blocks); n_group = n_desc_blocks * EXT4_DESC_PER_BLOCK(sb); n_blocks_count = (ext4_fsblk_t)n_group * - EXT4_BLOCKS_PER_GROUP(sb); + EXT4_BLOCKS_PER_GROUP(sb) + + le32_to_cpu(es->s_first_data_block); n_group--; /* set to last group number */ } @@ -2039,6 +2047,10 @@ out: free_flex_gd(flex_gd); if (resize_inode != NULL) iput(resize_inode); - ext4_msg(sb, KERN_INFO, "resized filesystem to %llu", n_blocks_count); + if (err) + ext4_warning(sb, "error (%d) occurred during " + "file system resize", err); + ext4_msg(sb, KERN_INFO, "resized filesystem to %llu", + ext4_blocks_count(es)); return err; } diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 83a96334dc07..4ebe69572475 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1489,7 +1489,7 @@ int sanity_check_ckpt(struct f2fs_sb_info *sbi) unsigned int segment_count_main; unsigned int cp_pack_start_sum, cp_payload; block_t user_block_count; - int i; + int i, j; total = le32_to_cpu(raw_super->segment_count); fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); @@ -1530,11 +1530,43 @@ int sanity_check_ckpt(struct f2fs_sb_info *sbi) if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) return 1; + for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) { + if (le32_to_cpu(ckpt->cur_node_segno[i]) == + le32_to_cpu(ckpt->cur_node_segno[j])) { + f2fs_msg(sbi->sb, KERN_ERR, + "Node segment (%u, %u) has the same " + "segno: %u", i, j, + le32_to_cpu(ckpt->cur_node_segno[i])); + return 1; + } + } } for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) return 1; + for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) { + if (le32_to_cpu(ckpt->cur_data_segno[i]) == + le32_to_cpu(ckpt->cur_data_segno[j])) { + f2fs_msg(sbi->sb, KERN_ERR, + "Data segment (%u, %u) has the same " + "segno: %u", i, j, + le32_to_cpu(ckpt->cur_data_segno[i])); + return 1; + } + } + } + for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { + for (j = i; j < NR_CURSEG_DATA_TYPE; j++) { + if (le32_to_cpu(ckpt->cur_node_segno[i]) == + le32_to_cpu(ckpt->cur_data_segno[j])) { + f2fs_msg(sbi->sb, KERN_ERR, + "Data segment (%u) and Data segment (%u)" + " has the same segno: %u", i, j, + le32_to_cpu(ckpt->cur_node_segno[i])); + return 1; + } + } } sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); diff --git a/fs/f2fs/trace.c b/fs/f2fs/trace.c index 73b4e1d1912a..501c283761d2 100644 --- a/fs/f2fs/trace.c +++ b/fs/f2fs/trace.c @@ -61,6 +61,7 @@ void f2fs_trace_pid(struct page *page) page->private = pid; +retry: if (radix_tree_preload(GFP_NOFS)) return; @@ -71,7 +72,12 @@ void f2fs_trace_pid(struct page *page) if (p) radix_tree_delete(&pids, pid); - f2fs_radix_tree_insert(&pids, pid, current); + if (radix_tree_insert(&pids, pid, current)) { + spin_unlock(&pids_lock); + radix_tree_preload_end(); + cond_resched(); + goto retry; + } trace_printk("%3x:%3x %4x %-16s\n", MAJOR(inode->i_sb->s_dev), MINOR(inode->i_sb->s_dev), diff --git a/fs/file.c b/fs/file.c index 69d6990e3021..09aac4d4729b 100644 --- a/fs/file.c +++ b/fs/file.c @@ -475,6 +475,7 @@ struct files_struct init_files = { .full_fds_bits = init_files.full_fds_bits_init, }, .file_lock = __SPIN_LOCK_UNLOCKED(init_files.file_lock), + .resize_wait = __WAIT_QUEUE_HEAD_INITIALIZER(init_files.resize_wait), }; static unsigned int find_next_fd(struct fdtable *fdt, unsigned int start) diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 31f8ca046639..10ec27676191 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -700,9 +700,11 @@ void jbd2_journal_commit_transaction(journal_t *journal) the last tag we set up. */ tag->t_flags |= cpu_to_be16(JBD2_FLAG_LAST_TAG); - - jbd2_descriptor_block_csum_set(journal, descriptor); start_journal_io: + if (descriptor) + jbd2_descriptor_block_csum_set(journal, + descriptor); + for (i = 0; i < bufs; i++) { struct buffer_head *bh = wbuf[i]; /* diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index b320c1ba7fdc..799f96c67211 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -1211,11 +1211,12 @@ int jbd2_journal_get_undo_access(handle_t *handle, struct buffer_head *bh) struct journal_head *jh; char *committed_data = NULL; - JBUFFER_TRACE(jh, "entry"); if (jbd2_write_access_granted(handle, bh, true)) return 0; jh = jbd2_journal_add_journal_head(bh); + JBUFFER_TRACE(jh, "entry"); + /* * Do this first --- it can drop the journal lock, so we want to * make sure that obtaining the committed_data is done @@ -1326,15 +1327,17 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) if (is_handle_aborted(handle)) return -EROFS; - if (!buffer_jbd(bh)) { - ret = -EUCLEAN; - goto out; - } + if (!buffer_jbd(bh)) + return -EUCLEAN; + /* * We don't grab jh reference here since the buffer must be part * of the running transaction. */ jh = bh2jh(bh); + jbd_debug(5, "journal_head %p\n", jh); + JBUFFER_TRACE(jh, "entry"); + /* * This and the following assertions are unreliable since we may see jh * in inconsistent state unless we grab bh_state lock. But this is @@ -1368,9 +1371,6 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) } journal = transaction->t_journal; - jbd_debug(5, "journal_head %p\n", jh); - JBUFFER_TRACE(jh, "entry"); - jbd_lock_bh_state(bh); if (jh->b_modified == 0) { @@ -1568,14 +1568,21 @@ int jbd2_journal_forget (handle_t *handle, struct buffer_head *bh) /* However, if the buffer is still owned by a prior * (committing) transaction, we can't drop it yet... */ JBUFFER_TRACE(jh, "belongs to older transaction"); - /* ... but we CAN drop it from the new transaction if we - * have also modified it since the original commit. */ + /* ... but we CAN drop it from the new transaction through + * marking the buffer as freed and set j_next_transaction to + * the new transaction, so that not only the commit code + * knows it should clear dirty bits when it is done with the + * buffer, but also the buffer can be checkpointed only + * after the new transaction commits. */ - if (jh->b_next_transaction) { - J_ASSERT(jh->b_next_transaction == transaction); + set_buffer_freed(bh); + + if (!jh->b_next_transaction) { spin_lock(&journal->j_list_lock); - jh->b_next_transaction = NULL; + jh->b_next_transaction = transaction; spin_unlock(&journal->j_list_lock); + } else { + J_ASSERT(jh->b_next_transaction == transaction); /* * only drop a reference if this transaction modified diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 445a26bfd6f4..508dcb46ef22 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2748,7 +2748,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, nfs4_schedule_stateid_recovery(server, state); } out: - nfs4_sequence_free_slot(&opendata->o_res.seq_res); + if (!opendata->cancelled) + nfs4_sequence_free_slot(&opendata->o_res.seq_res); return ret; } diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 892c88542ebd..fad4d5188aaf 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -975,6 +975,17 @@ static void nfs_pageio_doio(struct nfs_pageio_descriptor *desc) } } +static void +nfs_pageio_cleanup_request(struct nfs_pageio_descriptor *desc, + struct nfs_page *req) +{ + LIST_HEAD(head); + + nfs_list_remove_request(req); + nfs_list_add_request(req, &head); + desc->pg_completion_ops->error_cleanup(&head); +} + /** * nfs_pageio_add_request - Attempt to coalesce a request into a page list. * @desc: destination io descriptor @@ -1012,10 +1023,8 @@ static int __nfs_pageio_add_request(struct nfs_pageio_descriptor *desc, nfs_page_group_unlock(req); desc->pg_moreio = 1; nfs_pageio_doio(desc); - if (desc->pg_error < 0) - return 0; - if (mirror->pg_recoalesce) - return 0; + if (desc->pg_error < 0 || mirror->pg_recoalesce) + goto out_cleanup_subreq; /* retry add_request for this subreq */ nfs_page_group_lock(req, false); continue; @@ -1048,6 +1057,10 @@ err_ptr: desc->pg_error = PTR_ERR(subreq); nfs_page_group_unlock(req); return 0; +out_cleanup_subreq: + if (req != subreq) + nfs_pageio_cleanup_request(desc, subreq); + return 0; } static int nfs_do_recoalesce(struct nfs_pageio_descriptor *desc) @@ -1066,7 +1079,6 @@ static int nfs_do_recoalesce(struct nfs_pageio_descriptor *desc) struct nfs_page *req; req = list_first_entry(&head, struct nfs_page, wb_list); - nfs_list_remove_request(req); if (__nfs_pageio_add_request(desc, req)) continue; if (desc->pg_error < 0) { @@ -1141,11 +1153,14 @@ int nfs_pageio_add_request(struct nfs_pageio_descriptor *desc, if (nfs_pgio_has_mirroring(desc)) desc->pg_mirror_idx = midx; if (!nfs_pageio_add_request_mirror(desc, dupreq)) - goto out_failed; + goto out_cleanup_subreq; } return 1; +out_cleanup_subreq: + if (req != dupreq) + nfs_pageio_cleanup_request(desc, dupreq); out_failed: /* * We might have failed before sending any reqs over wire. @@ -1185,7 +1200,7 @@ static void nfs_pageio_complete_mirror(struct nfs_pageio_descriptor *desc, desc->pg_mirror_idx = mirror_idx; for (;;) { nfs_pageio_doio(desc); - if (!mirror->pg_recoalesce) + if (desc->pg_error < 0 || !mirror->pg_recoalesce) break; if (!nfs_do_recoalesce(desc)) break; diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c index d818e4ffd79f..00b472fe77c1 100644 --- a/fs/nfsd/nfs3proc.c +++ b/fs/nfsd/nfs3proc.c @@ -431,8 +431,19 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp, &resp->common, nfs3svc_encode_entry); memcpy(resp->verf, argp->verf, 8); resp->count = resp->buffer - argp->buffer; - if (resp->offset) - xdr_encode_hyper(resp->offset, argp->cookie); + if (resp->offset) { + loff_t offset = argp->cookie; + + if (unlikely(resp->offset1)) { + /* we ended up with offset on a page boundary */ + *resp->offset = htonl(offset >> 32); + *resp->offset1 = htonl(offset & 0xffffffff); + resp->offset1 = NULL; + } else { + xdr_encode_hyper(resp->offset, offset); + } + resp->offset = NULL; + } RETURN_STATUS(nfserr); } @@ -500,6 +511,7 @@ nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp, } else { xdr_encode_hyper(resp->offset, offset); } + resp->offset = NULL; } RETURN_STATUS(nfserr); diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index 452334694a5d..7e50248ca432 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -899,6 +899,7 @@ encode_entry(struct readdir_cd *ccd, const char *name, int namlen, } else { xdr_encode_hyper(cd->offset, offset64); } + cd->offset = NULL; } /* diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 797a155c9a67..f704f90db36c 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1103,7 +1103,7 @@ static ssize_t write_v4_end_grace(struct file *file, char *buf, size_t size) case 'Y': case 'y': case '1': - if (nn->nfsd_serv) + if (!nn->nfsd_serv) return -EBUSY; nfsd4_end_grace(nn); break; diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c index c204ac9b49e5..81a0d5d82757 100644 --- a/fs/ocfs2/cluster/nodemanager.c +++ b/fs/ocfs2/cluster/nodemanager.c @@ -621,13 +621,15 @@ static void o2nm_node_group_drop_item(struct config_group *group, struct o2nm_node *node = to_o2nm_node(item); struct o2nm_cluster *cluster = to_o2nm_cluster(group->cg_item.ci_parent); - o2net_disconnect_node(node); + if (cluster->cl_nodes[node->nd_num] == node) { + o2net_disconnect_node(node); - if (cluster->cl_has_local && - (cluster->cl_local_node == node->nd_num)) { - cluster->cl_has_local = 0; - cluster->cl_local_node = O2NM_INVALID_NODE_NUM; - o2net_stop_listening(node); + if (cluster->cl_has_local && + (cluster->cl_local_node == node->nd_num)) { + cluster->cl_has_local = 0; + cluster->cl_local_node = O2NM_INVALID_NODE_NUM; + o2net_stop_listening(node); + } } /* XXX call into net to stop this node from trading messages */ diff --git a/fs/open.c b/fs/open.c index a6c6244f4993..f1deb36ee1b7 100644 --- a/fs/open.c +++ b/fs/open.c @@ -717,6 +717,12 @@ static int do_dentry_open(struct file *f, return 0; } + /* Any file opened for execve()/uselib() has to be a regular file. */ + if (unlikely(f->f_flags & FMODE_EXEC && !S_ISREG(inode->i_mode))) { + error = -EACCES; + goto cleanup_file; + } + if (f->f_mode & FMODE_WRITE && !special_file(inode->i_mode)) { error = get_write_access(inode); if (unlikely(error)) diff --git a/fs/pipe.c b/fs/pipe.c index 34345535f63d..388e09a689de 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -238,6 +238,14 @@ static const struct pipe_buf_operations anon_pipe_buf_ops = { .get = generic_pipe_buf_get, }; +static const struct pipe_buf_operations anon_pipe_buf_nomerge_ops = { + .can_merge = 0, + .confirm = generic_pipe_buf_confirm, + .release = anon_pipe_buf_release, + .steal = anon_pipe_buf_steal, + .get = generic_pipe_buf_get, +}; + static const struct pipe_buf_operations packet_pipe_buf_ops = { .can_merge = 0, .confirm = generic_pipe_buf_confirm, @@ -246,6 +254,12 @@ static const struct pipe_buf_operations packet_pipe_buf_ops = { .get = generic_pipe_buf_get, }; +void pipe_buf_mark_unmergeable(struct pipe_buffer *buf) +{ + if (buf->ops == &anon_pipe_buf_ops) + buf->ops = &anon_pipe_buf_nomerge_ops; +} + static ssize_t pipe_read(struct kiocb *iocb, struct iov_iter *to) { diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index dd489be4260b..2fc119efabea 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -1604,7 +1604,8 @@ static void drop_sysctl_table(struct ctl_table_header *header) if (--header->nreg) return; - put_links(header); + if (parent) + put_links(header); start_unregistering(header); if (!--header->count) kfree_rcu(header, rcu); diff --git a/fs/read_write.c b/fs/read_write.c index 9819f7c6c8c5..6ab67b860159 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1204,6 +1204,9 @@ COMPAT_SYSCALL_DEFINE5(preadv64v2, unsigned long, fd, const struct compat_iovec __user *,vec, unsigned long, vlen, loff_t, pos, int, flags) { + if (pos == -1) + return do_compat_readv(fd, vec, vlen, flags); + return do_compat_preadv64(fd, vec, vlen, pos, flags); } #endif @@ -1310,6 +1313,9 @@ COMPAT_SYSCALL_DEFINE5(pwritev64v2, unsigned long, fd, const struct compat_iovec __user *,vec, unsigned long, vlen, loff_t, pos, int, flags) { + if (pos == -1) + return do_compat_writev(fd, vec, vlen, flags); + return do_compat_pwritev64(fd, vec, vlen, pos, flags); } #endif diff --git a/fs/splice.c b/fs/splice.c index 8dd79ecfd383..01983bea760c 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1594,6 +1594,8 @@ retry: */ obuf->flags &= ~PIPE_BUF_FLAG_GIFT; + pipe_buf_mark_unmergeable(obuf); + obuf->len = len; opipe->nrbufs++; ibuf->offset += obuf->len; @@ -1668,6 +1670,8 @@ static int link_pipe(struct pipe_inode_info *ipipe, */ obuf->flags &= ~PIPE_BUF_FLAG_GIFT; + pipe_buf_mark_unmergeable(obuf); + if (obuf->len > len) obuf->len = len; diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c index 42b8c57795cb..c6ce7503a329 100644 --- a/fs/udf/truncate.c +++ b/fs/udf/truncate.c @@ -260,6 +260,9 @@ void udf_truncate_extents(struct inode *inode) epos.block = eloc; epos.bh = udf_tread(sb, udf_get_lb_pblock(sb, &eloc, 0)); + /* Error reading indirect block? */ + if (!epos.bh) + return; if (elen) indirect_ext_len = (elen + sb->s_blocksize - 1) >> diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h index 12c2882bf647..eef069616a2f 100644 --- a/include/acpi/acconfig.h +++ b/include/acpi/acconfig.h @@ -122,7 +122,7 @@ /* Maximum object reference count (detects object deletion issues) */ -#define ACPI_MAX_REFERENCE_COUNT 0x1000 +#define ACPI_MAX_REFERENCE_COUNT 0x4000 /* Default page size for use in mapping memory for operation regions */ diff --git a/include/linux/atalk.h b/include/linux/atalk.h index 73fd8b7e9534..af43ed404ff4 100644 --- a/include/linux/atalk.h +++ b/include/linux/atalk.h @@ -150,19 +150,29 @@ extern int sysctl_aarp_retransmit_limit; extern int sysctl_aarp_resolve_time; #ifdef CONFIG_SYSCTL -extern void atalk_register_sysctl(void); +extern int atalk_register_sysctl(void); extern void atalk_unregister_sysctl(void); #else -#define atalk_register_sysctl() do { } while(0) -#define atalk_unregister_sysctl() do { } while(0) +static inline int atalk_register_sysctl(void) +{ + return 0; +} +static inline void atalk_unregister_sysctl(void) +{ +} #endif #ifdef CONFIG_PROC_FS extern int atalk_proc_init(void); extern void atalk_proc_exit(void); #else -#define atalk_proc_init() ({ 0; }) -#define atalk_proc_exit() do { } while(0) +static inline int atalk_proc_init(void) +{ + return 0; +} +static inline void atalk_proc_exit(void) +{ +} #endif /* CONFIG_PROC_FS */ #endif /* __LINUX_ATALK_H__ */ diff --git a/include/linux/bitrev.h b/include/linux/bitrev.h index fb790b8449c1..333e42cf08de 100644 --- a/include/linux/bitrev.h +++ b/include/linux/bitrev.h @@ -31,32 +31,32 @@ static inline u32 __bitrev32(u32 x) #define __constant_bitrev32(x) \ ({ \ - u32 __x = x; \ - __x = (__x >> 16) | (__x << 16); \ - __x = ((__x & (u32)0xFF00FF00UL) >> 8) | ((__x & (u32)0x00FF00FFUL) << 8); \ - __x = ((__x & (u32)0xF0F0F0F0UL) >> 4) | ((__x & (u32)0x0F0F0F0FUL) << 4); \ - __x = ((__x & (u32)0xCCCCCCCCUL) >> 2) | ((__x & (u32)0x33333333UL) << 2); \ - __x = ((__x & (u32)0xAAAAAAAAUL) >> 1) | ((__x & (u32)0x55555555UL) << 1); \ - __x; \ + u32 ___x = x; \ + ___x = (___x >> 16) | (___x << 16); \ + ___x = ((___x & (u32)0xFF00FF00UL) >> 8) | ((___x & (u32)0x00FF00FFUL) << 8); \ + ___x = ((___x & (u32)0xF0F0F0F0UL) >> 4) | ((___x & (u32)0x0F0F0F0FUL) << 4); \ + ___x = ((___x & (u32)0xCCCCCCCCUL) >> 2) | ((___x & (u32)0x33333333UL) << 2); \ + ___x = ((___x & (u32)0xAAAAAAAAUL) >> 1) | ((___x & (u32)0x55555555UL) << 1); \ + ___x; \ }) #define __constant_bitrev16(x) \ ({ \ - u16 __x = x; \ - __x = (__x >> 8) | (__x << 8); \ - __x = ((__x & (u16)0xF0F0U) >> 4) | ((__x & (u16)0x0F0FU) << 4); \ - __x = ((__x & (u16)0xCCCCU) >> 2) | ((__x & (u16)0x3333U) << 2); \ - __x = ((__x & (u16)0xAAAAU) >> 1) | ((__x & (u16)0x5555U) << 1); \ - __x; \ + u16 ___x = x; \ + ___x = (___x >> 8) | (___x << 8); \ + ___x = ((___x & (u16)0xF0F0U) >> 4) | ((___x & (u16)0x0F0FU) << 4); \ + ___x = ((___x & (u16)0xCCCCU) >> 2) | ((___x & (u16)0x3333U) << 2); \ + ___x = ((___x & (u16)0xAAAAU) >> 1) | ((___x & (u16)0x5555U) << 1); \ + ___x; \ }) #define __constant_bitrev8(x) \ ({ \ - u8 __x = x; \ - __x = (__x >> 4) | (__x << 4); \ - __x = ((__x & (u8)0xCCU) >> 2) | ((__x & (u8)0x33U) << 2); \ - __x = ((__x & (u8)0xAAU) >> 1) | ((__x & (u8)0x55U) << 1); \ - __x; \ + u8 ___x = x; \ + ___x = (___x >> 4) | (___x << 4); \ + ___x = ((___x & (u8)0xCCU) >> 2) | ((___x & (u8)0x33U) << 2); \ + ___x = ((___x & (u8)0xAAU) >> 1) | ((___x & (u8)0x55U) << 1); \ + ___x; \ }) #define bitrev32(x) \ diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index a8a574897d3c..fe757514feb1 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -276,6 +276,8 @@ extern void ceph_destroy_client(struct ceph_client *client); extern int __ceph_open_session(struct ceph_client *client, unsigned long started); extern int ceph_open_session(struct ceph_client *client); +int ceph_wait_for_latest_osdmap(struct ceph_client *client, + unsigned long timeout); /* pagevec.c */ extern void ceph_release_page_vector(struct page **pages, int num_pages); diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index ef7962e84444..9661bb2fbe22 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -627,7 +627,7 @@ extern struct ratelimit_state dm_ratelimit_state; */ #define dm_target_offset(ti, sector) ((sector) - (ti)->begin) -static inline sector_t to_sector(unsigned long n) +static inline sector_t to_sector(unsigned long long n) { return (n >> SECTOR_SHIFT); } diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index eeeb540971ae..529da7ef55e3 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -61,6 +61,7 @@ struct irq_desc { unsigned int core_internal_state__do_not_mess_with_it; unsigned int depth; /* nested irq disables */ unsigned int wake_depth; /* nested wake enables */ + unsigned int tot_count; unsigned int irq_count; /* For detecting broken IRQs */ unsigned long last_unhandled; /* Aging timer for unhandled count */ unsigned int irqs_unhandled; diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 859fd209603a..509e99076c57 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -578,6 +578,8 @@ enum mlx5_pci_status { }; struct mlx5_td { + /* protects tirs list changes while tirs refresh */ + struct mutex list_lock; struct list_head tirs_list; u32 tdn; }; diff --git a/include/linux/of.h b/include/linux/of.h index a19cc85b9373..aac3f09c5d90 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -148,16 +148,20 @@ extern raw_spinlock_t devtree_lock; #ifdef CONFIG_OF void of_core_init(void); -static inline bool is_of_node(struct fwnode_handle *fwnode) +static inline bool is_of_node(const struct fwnode_handle *fwnode) { return !IS_ERR_OR_NULL(fwnode) && fwnode->type == FWNODE_OF; } -static inline struct device_node *to_of_node(struct fwnode_handle *fwnode) -{ - return is_of_node(fwnode) ? - container_of(fwnode, struct device_node, fwnode) : NULL; -} +#define to_of_node(__fwnode) \ + ({ \ + typeof(__fwnode) __to_of_node_fwnode = (__fwnode); \ + \ + is_of_node(__to_of_node_fwnode) ? \ + container_of(__to_of_node_fwnode, \ + struct device_node, fwnode) : \ + NULL; \ + }) static inline bool of_have_populated_dt(void) { @@ -529,12 +533,12 @@ static inline void of_core_init(void) { } -static inline bool is_of_node(struct fwnode_handle *fwnode) +static inline bool is_of_node(const struct fwnode_handle *fwnode) { return false; } -static inline struct device_node *to_of_node(struct fwnode_handle *fwnode) +static inline struct device_node *to_of_node(const struct fwnode_handle *fwnode) { return NULL; } diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index e7497c9dde7f..4f7129389855 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -182,6 +182,7 @@ void generic_pipe_buf_get(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *); void generic_pipe_buf_release(struct pipe_inode_info *, struct pipe_buffer *); +void pipe_buf_mark_unmergeable(struct pipe_buffer *buf); extern const struct pipe_buf_operations nosteal_pipe_buf_ops; diff --git a/include/linux/property.h b/include/linux/property.h index 459337fb44d0..d5c7ebda4113 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -233,7 +233,7 @@ struct property_entry { #define PROPERTY_ENTRY_STRING(_name_, _val_) \ (struct property_entry) { \ .name = _name_, \ - .length = sizeof(_val_), \ + .length = sizeof(const char *), \ .is_string = true, \ { .value = { .str = _val_ } }, \ } diff --git a/include/linux/relay.h b/include/linux/relay.h index 68c1448e56bb..2560f8706408 100644 --- a/include/linux/relay.h +++ b/include/linux/relay.h @@ -65,7 +65,7 @@ struct rchan struct kref kref; /* channel refcount */ void *private_data; /* for user-defined data */ size_t last_toobig; /* tried to log event > subbuf size */ - struct rchan_buf ** __percpu buf; /* per-cpu channel buffers */ + struct rchan_buf * __percpu *buf; /* per-cpu channel buffers */ int is_global; /* One global buffer ? */ struct list_head list; /* for channel list */ struct dentry *parent; /* parent dentry passed to open */ diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index 19d0778ec382..121c8f99ecdd 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -125,7 +125,7 @@ ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts, unsigned long *lost_events); struct ring_buffer_iter * -ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu); +ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags); void ring_buffer_read_prepare_sync(void); void ring_buffer_read_start(struct ring_buffer_iter *iter); void ring_buffer_read_finish(struct ring_buffer_iter *iter); diff --git a/include/linux/string.h b/include/linux/string.h index 60042e5e88ff..42eed573ebb6 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -111,6 +111,9 @@ extern void * memscan(void *,int,__kernel_size_t); #ifndef __HAVE_ARCH_MEMCMP extern int memcmp(const void *,const void *,__kernel_size_t); #endif +#ifndef __HAVE_ARCH_BCMP +extern int bcmp(const void *,const void *,__kernel_size_t); +#endif #ifndef __HAVE_ARCH_MEMCHR extern void * memchr(const void *,int,__kernel_size_t); #endif diff --git a/include/linux/swap.h b/include/linux/swap.h index 52bf5477dc92..434f65ac9a59 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -136,9 +136,9 @@ struct swap_extent { /* * Max bad pages in the new format.. */ -#define __swapoffset(x) ((unsigned long)&((union swap_header *)0)->x) #define MAX_SWAP_BADPAGES \ - ((__swapoffset(magic.magic) - __swapoffset(info.badpages)) / sizeof(int)) + ((offsetof(union swap_header, magic.magic) - \ + offsetof(union swap_header, info.badpages)) / sizeof(int)) enum { SWP_USED = (1 << 0), /* is slot in swap_info[] used? */ diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h index e8d36938f09a..b38c1871b735 100644 --- a/include/linux/virtio_ring.h +++ b/include/linux/virtio_ring.h @@ -62,7 +62,7 @@ struct virtqueue; /* * Creates a virtqueue and allocates the descriptor ring. If * may_reduce_num is set, then this may allocate a smaller ring than - * expected. The caller should query virtqueue_get_ring_size to learn + * expected. The caller should query virtqueue_get_vring_size to learn * the actual size of the ring. */ struct virtqueue *vring_create_virtqueue(unsigned int index, diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h index 95f33eeee984..6db0e8534127 100644 --- a/include/net/gro_cells.h +++ b/include/net/gro_cells.h @@ -18,22 +18,36 @@ static inline int gro_cells_receive(struct gro_cells *gcells, struct sk_buff *sk { struct gro_cell *cell; struct net_device *dev = skb->dev; + int res; - if (!gcells->cells || skb_cloned(skb) || !(dev->features & NETIF_F_GRO)) - return netif_rx(skb); + rcu_read_lock(); + if (unlikely(!(dev->flags & IFF_UP))) + goto drop; + + if (!gcells->cells || skb_cloned(skb) || !(dev->features & NETIF_F_GRO)) { + res = netif_rx(skb); + goto unlock; + } cell = this_cpu_ptr(gcells->cells); if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) { +drop: atomic_long_inc(&dev->rx_dropped); kfree_skb(skb); - return NET_RX_DROP; + res = NET_RX_DROP; + goto unlock; } __skb_queue_tail(&cell->napi_skbs, skb); if (skb_queue_len(&cell->napi_skbs) == 1) napi_schedule(&cell->napi); - return NET_RX_SUCCESS; + + res = NET_RX_SUCCESS; + +unlock: + rcu_read_unlock(); + return res; } /* called under BH context */ diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index 197a30d221e9..146054ceea8e 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -289,11 +289,6 @@ static inline int inet_csk_reqsk_queue_len(const struct sock *sk) return reqsk_queue_len(&inet_csk(sk)->icsk_accept_queue); } -static inline int inet_csk_reqsk_queue_young(const struct sock *sk) -{ - return reqsk_queue_len_young(&inet_csk(sk)->icsk_accept_queue); -} - static inline int inet_csk_reqsk_queue_is_full(const struct sock *sk) { return inet_csk_reqsk_queue_len(sk) >= sk->sk_max_ack_backlog; diff --git a/include/net/ip.h b/include/net/ip.h index f06cd30bb44c..a3c1b9dfc9a1 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -580,7 +580,7 @@ int ip_options_get_from_user(struct net *net, struct ip_options_rcu **optp, unsigned char __user *data, int optlen); void ip_options_undo(struct ip_options *opt); void ip_forward_options(struct sk_buff *skb); -int ip_options_rcv_srr(struct sk_buff *skb); +int ip_options_rcv_srr(struct sk_buff *skb, struct net_device *dev); /* * Functions provided by ip_sockglue.c diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index c05db6ff2515..0cdafe3935a6 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -53,6 +53,7 @@ struct net { */ spinlock_t rules_mod_lock; + u32 hash_mix; atomic64_t cookie_gen; struct list_head list; /* list of network namespaces */ diff --git a/include/net/netfilter/br_netfilter.h b/include/net/netfilter/br_netfilter.h index 0b0c35c37125..238d1b83a45a 100644 --- a/include/net/netfilter/br_netfilter.h +++ b/include/net/netfilter/br_netfilter.h @@ -48,7 +48,6 @@ static inline struct rtable *bridge_parent_rtable(const struct net_device *dev) } struct net_device *setup_pre_routing(struct sk_buff *skb); -void br_netfilter_enable(void); #if IS_ENABLED(CONFIG_IPV6) int br_validate_ipv6(struct net *net, struct sk_buff *skb); diff --git a/include/net/netns/hash.h b/include/net/netns/hash.h index 69a6715d9f3f..a347b2f9e748 100644 --- a/include/net/netns/hash.h +++ b/include/net/netns/hash.h @@ -1,21 +1,10 @@ #ifndef __NET_NS_HASH_H__ #define __NET_NS_HASH_H__ -#include <asm/cache.h> - -struct net; +#include <net/net_namespace.h> static inline u32 net_hash_mix(const struct net *net) { -#ifdef CONFIG_NET_NS - /* - * shift this right to eliminate bits, that are - * always zeroed - */ - - return (u32)(((unsigned long)net) >> L1_CACHE_SHIFT); -#else - return 0; -#endif + return net->hash_mix; } #endif diff --git a/include/net/phonet/pep.h b/include/net/phonet/pep.h index b669fe6dbc3b..98f31c7ea23d 100644 --- a/include/net/phonet/pep.h +++ b/include/net/phonet/pep.h @@ -63,10 +63,11 @@ struct pnpipehdr { u8 state_after_reset; /* reset request */ u8 error_code; /* any response */ u8 pep_type; /* status indication */ - u8 data[1]; + u8 data0; /* anything else */ }; + u8 data[]; }; -#define other_pep_type data[1] +#define other_pep_type data[0] static inline struct pnpipehdr *pnp_hdr(struct sk_buff *skb) { diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h index 4a5b9a306c69..803fc26ef0ba 100644 --- a/include/net/sctp/checksum.h +++ b/include/net/sctp/checksum.h @@ -60,7 +60,7 @@ static inline __wsum sctp_csum_combine(__wsum csum, __wsum csum2, static inline __le32 sctp_compute_cksum(const struct sk_buff *skb, unsigned int offset) { - struct sctphdr *sh = sctp_hdr(skb); + struct sctphdr *sh = (struct sctphdr *)(skb->data + offset); __le32 ret, old = sh->checksum; const struct skb_checksum_ops ops = { .update = sctp_csum_update, diff --git a/include/net/sock.h b/include/net/sock.h index 15bb04dec40e..116308632fae 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -650,6 +650,12 @@ static inline void sk_add_node_rcu(struct sock *sk, struct hlist_head *list) hlist_add_head_rcu(&sk->sk_node, list); } +static inline void sk_add_node_tail_rcu(struct sock *sk, struct hlist_head *list) +{ + sock_hold(sk); + hlist_add_tail_rcu(&sk->sk_node, list); +} + static inline void __sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list) { hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list); diff --git a/kernel/cpu.c b/kernel/cpu.c index 14ff98ac29cb..ec8007500aaf 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -874,6 +874,20 @@ static void undo_cpu_up(unsigned int cpu, struct cpuhp_cpu_state *st) } } +static inline bool can_rollback_cpu(struct cpuhp_cpu_state *st) +{ + if (IS_ENABLED(CONFIG_HOTPLUG_CPU)) + return true; + /* + * When CPU hotplug is disabled, then taking the CPU down is not + * possible because takedown_cpu() and the architecture and + * subsystem specific mechanisms are not available. So the CPU + * which would be completely unplugged again needs to stay around + * in the current state. + */ + return st->state <= CPUHP_BRINGUP_CPU; +} + static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st, enum cpuhp_state target) { @@ -884,8 +898,10 @@ static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st, st->state++; ret = cpuhp_invoke_callback(cpu, st->state, true, NULL); if (ret) { - st->target = prev_state; - undo_cpu_up(cpu, st); + if (can_rollback_cpu(st)) { + st->target = prev_state; + undo_cpu_up(cpu, st); + } break; } } diff --git a/kernel/events/core.c b/kernel/events/core.c index 6ed06cfde8a9..87c95fcca094 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -6617,6 +6617,7 @@ static void perf_event_mmap_output(struct perf_event *event, struct perf_output_handle handle; struct perf_sample_data sample; int size = mmap_event->event_id.header.size; + u32 type = mmap_event->event_id.header.type; int ret; if (!perf_event_mmap_match(event, data)) @@ -6660,6 +6661,7 @@ static void perf_event_mmap_output(struct perf_event *event, perf_output_end(&handle); out: mmap_event->event_id.header.size = size; + mmap_event->event_id.header.type = type; } static void perf_event_mmap_event(struct perf_mmap_event *mmap_event) diff --git a/kernel/futex.c b/kernel/futex.c index 196218d1b0f3..c7d149199a80 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -3427,6 +3427,10 @@ int handle_futex_death(u32 __user *uaddr, struct task_struct *curr, int pi) { u32 uval, uninitialized_var(nval), mval; + /* Futex address must be 32bit aligned */ + if ((((unsigned long)uaddr) % sizeof(*uaddr)) != 0) + return -1; + retry: if (get_user(uval, uaddr)) return -1; diff --git a/kernel/hung_task.c b/kernel/hung_task.c index fd781a468f32..fb00cf30abd1 100644 --- a/kernel/hung_task.c +++ b/kernel/hung_task.c @@ -15,6 +15,7 @@ #include <linux/lockdep.h> #include <linux/export.h> #include <linux/sysctl.h> +#include <linux/suspend.h> #include <linux/utsname.h> #include <trace/events/sched.h> @@ -221,6 +222,28 @@ void reset_hung_task_detector(void) } EXPORT_SYMBOL_GPL(reset_hung_task_detector); +static bool hung_detector_suspended; + +static int hungtask_pm_notify(struct notifier_block *self, + unsigned long action, void *hcpu) +{ + switch (action) { + case PM_SUSPEND_PREPARE: + case PM_HIBERNATION_PREPARE: + case PM_RESTORE_PREPARE: + hung_detector_suspended = true; + break; + case PM_POST_SUSPEND: + case PM_POST_HIBERNATION: + case PM_POST_RESTORE: + hung_detector_suspended = false; + break; + default: + break; + } + return NOTIFY_OK; +} + /* * kthread which checks for tasks stuck in D state */ @@ -235,7 +258,8 @@ static int watchdog(void *dummy) long t = hung_timeout_jiffies(hung_last_checked, timeout); if (t <= 0) { - if (!atomic_xchg(&reset_hung_task, 0)) + if (!atomic_xchg(&reset_hung_task, 0) && + !hung_detector_suspended) check_hung_uninterruptible_tasks(timeout); hung_last_checked = jiffies; continue; @@ -249,6 +273,10 @@ static int watchdog(void *dummy) static int __init hung_task_init(void) { atomic_notifier_chain_register(&panic_notifier_list, &panic_block); + + /* Disable hung task detector on suspend */ + pm_notifier(hungtask_pm_notify, 0); + watchdog_task = kthread_run(watchdog, NULL, "khungtaskd"); return 0; diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index f30110e1b8c9..9f13667ccb9c 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -729,7 +729,11 @@ void handle_percpu_irq(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); - kstat_incr_irqs_this_cpu(desc); + /* + * PER CPU interrupts are not serialized. Do not touch + * desc->tot_count. + */ + __kstat_incr_irqs_this_cpu(desc); if (chip->irq_ack) chip->irq_ack(&desc->irq_data); @@ -758,7 +762,11 @@ void handle_percpu_devid_irq(struct irq_desc *desc) unsigned int irq = irq_desc_get_irq(desc); irqreturn_t res; - kstat_incr_irqs_this_cpu(desc); + /* + * PER CPU interrupts are not serialized. Do not touch + * desc->tot_count. + */ + __kstat_incr_irqs_this_cpu(desc); if (chip->irq_ack) chip->irq_ack(&desc->irq_data); @@ -1134,6 +1142,10 @@ int irq_chip_set_vcpu_affinity_parent(struct irq_data *data, void *vcpu_info) int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on) { data = data->parent_data; + + if (data->chip->flags & IRQCHIP_SKIP_SET_WAKE) + return 0; + if (data->chip->irq_set_wake) return data->chip->irq_set_wake(data, on); diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index bc226e783bd2..22e3f29a30d8 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -199,12 +199,18 @@ static inline bool irqd_has_set(struct irq_data *d, unsigned int mask) #undef __irqd_to_state -static inline void kstat_incr_irqs_this_cpu(struct irq_desc *desc) +static inline void __kstat_incr_irqs_this_cpu(struct irq_desc *desc) { __this_cpu_inc(*desc->kstat_irqs); __this_cpu_inc(kstat.irqs_sum); } +static inline void kstat_incr_irqs_this_cpu(struct irq_desc *desc) +{ + __kstat_incr_irqs_this_cpu(desc); + desc->tot_count++; +} + static inline int irq_desc_get_node(struct irq_desc *desc) { return irq_common_data_get_node(&desc->irq_common_data); diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 77977f55dff7..5e0ea17d01a6 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -109,6 +109,7 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node, desc->depth = 1; desc->irq_count = 0; desc->irqs_unhandled = 0; + desc->tot_count = 0; desc->name = NULL; desc->owner = owner; for_each_possible_cpu(cpu) @@ -880,11 +881,15 @@ unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) unsigned int kstat_irqs(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); - int cpu; unsigned int sum = 0; + int cpu; if (!desc || !desc->kstat_irqs) return 0; + if (!irq_settings_is_per_cpu_devid(desc) && + !irq_settings_is_per_cpu(desc)) + return desc->tot_count; + for_each_possible_cpu(cpu) sum += *per_cpu_ptr(desc->kstat_irqs, cpu); return sum; diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 69e56580efdc..41db7e113626 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -3459,6 +3459,9 @@ __lock_set_class(struct lockdep_map *lock, const char *name, unsigned int depth; int i; + if (unlikely(!debug_locks)) + return 0; + depth = curr->lockdep_depth; /* * This function is about (re)setting the class of a held lock, diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index a7b11a29e03a..7c3b4c8c5070 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -1751,15 +1751,23 @@ static int rcu_future_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp) } /* - * Awaken the grace-period kthread for the specified flavor of RCU. - * Don't do a self-awaken, and don't bother awakening when there is - * nothing for the grace-period kthread to do (as in several CPUs - * raced to awaken, and we lost), and finally don't try to awaken - * a kthread that has not yet been created. + * Awaken the grace-period kthread. Don't do a self-awaken (unless in + * an interrupt or softirq handler), and don't bother awakening when there + * is nothing for the grace-period kthread to do (as in several CPUs raced + * to awaken, and we lost), and finally don't try to awaken a kthread that + * has not yet been created. If all those checks are passed, track some + * debug information and awaken. + * + * So why do the self-wakeup when in an interrupt or softirq handler + * in the grace-period kthread's context? Because the kthread might have + * been interrupted just as it was going to sleep, and just after the final + * pre-sleep check of the awaken condition. In this case, a wakeup really + * is required, and is therefore supplied. */ static void rcu_gp_kthread_wake(struct rcu_state *rsp) { - if (current == rsp->gp_kthread || + if ((current == rsp->gp_kthread && + !in_interrupt() && !in_serving_softirq()) || !READ_ONCE(rsp->gp_flags) || !rsp->gp_kthread) return; diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 77399de818b0..3f6b20dbb7d3 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6634,10 +6634,10 @@ static void update_cfs_rq_h_load(struct cfs_rq *cfs_rq) if (cfs_rq->last_h_load_update == now) return; - cfs_rq->h_load_next = NULL; + WRITE_ONCE(cfs_rq->h_load_next, NULL); for_each_sched_entity(se) { cfs_rq = cfs_rq_of(se); - cfs_rq->h_load_next = se; + WRITE_ONCE(cfs_rq->h_load_next, se); if (cfs_rq->last_h_load_update == now) break; } @@ -6647,7 +6647,7 @@ static void update_cfs_rq_h_load(struct cfs_rq *cfs_rq) cfs_rq->last_h_load_update = now; } - while ((se = cfs_rq->h_load_next) != NULL) { + while ((se = READ_ONCE(cfs_rq->h_load_next)) != NULL) { load = cfs_rq->h_load; load = div64_ul(load * se->avg.load_avg, cfs_rq_load_avg(cfs_rq) + 1); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 93c7b02279b9..5515d578095b 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -125,6 +125,7 @@ static int __maybe_unused one = 1; static int __maybe_unused two = 2; static int __maybe_unused four = 4; static unsigned long one_ul = 1; +static unsigned long long_max = LONG_MAX; static int one_hundred = 100; static int one_thousand = 1000; #ifdef CONFIG_PRINTK @@ -1682,6 +1683,8 @@ static struct ctl_table fs_table[] = { .maxlen = sizeof(files_stat.max_files), .mode = 0644, .proc_handler = proc_doulongvec_minmax, + .extra1 = &zero, + .extra2 = &long_max, }, { .procname = "nr_open", @@ -2377,7 +2380,16 @@ static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp, { struct do_proc_dointvec_minmax_conv_param *param = data; if (write) { - int val = *negp ? -*lvalp : *lvalp; + int val; + if (*negp) { + if (*lvalp > (unsigned long) INT_MAX + 1) + return -EINVAL; + val = -*lvalp; + } else { + if (*lvalp > (unsigned long) INT_MAX) + return -EINVAL; + val = *lvalp; + } if ((param->min && *param->min > val) || (param->max && *param->max < val)) return -EINVAL; diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index f316e90ad538..5473dcaaca8d 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -4037,6 +4037,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_consume); * ring_buffer_read_prepare - Prepare for a non consuming read of the buffer * @buffer: The ring buffer to read from * @cpu: The cpu buffer to iterate over + * @flags: gfp flags to use for memory allocation * * This performs the initial preparations necessary to iterate * through the buffer. Memory is allocated, buffer recording @@ -4054,7 +4055,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_consume); * This overall must be paired with ring_buffer_read_finish. */ struct ring_buffer_iter * -ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu) +ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags) { struct ring_buffer_per_cpu *cpu_buffer; struct ring_buffer_iter *iter; @@ -4062,7 +4063,7 @@ ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu) if (!cpumask_test_cpu(cpu, buffer->cpumask)) return NULL; - iter = kmalloc(sizeof(*iter), GFP_KERNEL); + iter = kmalloc(sizeof(*iter), flags); if (!iter) return NULL; diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 5222941719a8..3f6ebd95435a 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3459,7 +3459,8 @@ __tracing_open(struct inode *inode, struct file *file, bool snapshot) if (iter->cpu_file == RING_BUFFER_ALL_CPUS) { for_each_tracing_cpu(cpu) { iter->buffer_iter[cpu] = - ring_buffer_read_prepare(iter->trace_buffer->buffer, cpu); + ring_buffer_read_prepare(iter->trace_buffer->buffer, + cpu, GFP_KERNEL); } ring_buffer_read_prepare_sync(); for_each_tracing_cpu(cpu) { @@ -3469,7 +3470,8 @@ __tracing_open(struct inode *inode, struct file *file, bool snapshot) } else { cpu = iter->cpu_file; iter->buffer_iter[cpu] = - ring_buffer_read_prepare(iter->trace_buffer->buffer, cpu); + ring_buffer_read_prepare(iter->trace_buffer->buffer, + cpu, GFP_KERNEL); ring_buffer_read_prepare_sync(); ring_buffer_read_start(iter->buffer_iter[cpu]); tracing_iter_reset(iter, cpu); @@ -5067,7 +5069,6 @@ out: return ret; fail: - kfree(iter->trace); kfree(iter); __trace_array_put(tr); mutex_unlock(&trace_types_lock); diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 0664044ade06..766e5ccad60a 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -871,9 +871,10 @@ static inline void add_to_key(char *compound_key, void *key, /* ensure NULL-termination */ if (size > key_field->size - 1) size = key_field->size - 1; - } - memcpy(compound_key + key_field->offset, key, size); + strncpy(compound_key + key_field->offset, (char *)key, size); + } else + memcpy(compound_key + key_field->offset, key, size); } static void event_hist_trigger(struct event_trigger_data *data, void *rec) diff --git a/kernel/trace/trace_kdb.c b/kernel/trace/trace_kdb.c index 57149bce6aad..896458285fdd 100644 --- a/kernel/trace/trace_kdb.c +++ b/kernel/trace/trace_kdb.c @@ -50,14 +50,16 @@ static void ftrace_dump_buf(int skip_lines, long cpu_file) if (cpu_file == RING_BUFFER_ALL_CPUS) { for_each_tracing_cpu(cpu) { iter.buffer_iter[cpu] = - ring_buffer_read_prepare(iter.trace_buffer->buffer, cpu); + ring_buffer_read_prepare(iter.trace_buffer->buffer, + cpu, GFP_ATOMIC); ring_buffer_read_start(iter.buffer_iter[cpu]); tracing_iter_reset(&iter, cpu); } } else { iter.cpu_file = cpu_file; iter.buffer_iter[cpu_file] = - ring_buffer_read_prepare(iter.trace_buffer->buffer, cpu_file); + ring_buffer_read_prepare(iter.trace_buffer->buffer, + cpu_file, GFP_ATOMIC); ring_buffer_read_start(iter.buffer_iter[cpu_file]); tracing_iter_reset(&iter, cpu_file); } diff --git a/lib/assoc_array.c b/lib/assoc_array.c index 5cd093589c5a..3b46c5433b7a 100644 --- a/lib/assoc_array.c +++ b/lib/assoc_array.c @@ -781,9 +781,11 @@ all_leaves_cluster_together: new_s0->index_key[i] = ops->get_key_chunk(index_key, i * ASSOC_ARRAY_KEY_CHUNK_SIZE); - blank = ULONG_MAX << (level & ASSOC_ARRAY_KEY_CHUNK_MASK); - pr_devel("blank off [%zu] %d: %lx\n", keylen - 1, level, blank); - new_s0->index_key[keylen - 1] &= ~blank; + if (level & ASSOC_ARRAY_KEY_CHUNK_MASK) { + blank = ULONG_MAX << (level & ASSOC_ARRAY_KEY_CHUNK_MASK); + pr_devel("blank off [%zu] %d: %lx\n", keylen - 1, level, blank); + new_s0->index_key[keylen - 1] &= ~blank; + } /* This now reduces to a node splitting exercise for which we'll need * to regenerate the disparity table. diff --git a/lib/bsearch.c b/lib/bsearch.c index e33c179089db..d50048446b77 100644 --- a/lib/bsearch.c +++ b/lib/bsearch.c @@ -11,6 +11,7 @@ #include <linux/export.h> #include <linux/bsearch.h> +#include <linux/kprobes.h> /* * bsearch - binary search an array of elements @@ -51,3 +52,4 @@ void *bsearch(const void *key, const void *base, size_t num, size_t size, return NULL; } EXPORT_SYMBOL(bsearch); +NOKPROBE_SYMBOL(bsearch); diff --git a/lib/div64.c b/lib/div64.c index 7f345259c32f..c1c1a4c36dd5 100644 --- a/lib/div64.c +++ b/lib/div64.c @@ -102,7 +102,7 @@ u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder) quot = div_u64_rem(dividend, divisor, &rem32); *remainder = rem32; } else { - int n = 1 + fls(high); + int n = fls(high); quot = div_u64(dividend >> n, divisor >> n); if (quot != 0) @@ -140,7 +140,7 @@ u64 div64_u64(u64 dividend, u64 divisor) if (high == 0) { quot = div_u64(dividend, divisor); } else { - int n = 1 + fls(high); + int n = fls(high); quot = div_u64(dividend >> n, divisor >> n); if (quot != 0) diff --git a/lib/int_sqrt.c b/lib/int_sqrt.c index 1ef4cc344977..6d35274170bc 100644 --- a/lib/int_sqrt.c +++ b/lib/int_sqrt.c @@ -7,6 +7,7 @@ #include <linux/kernel.h> #include <linux/export.h> +#include <linux/bitops.h> /** * int_sqrt - rough approximation to sqrt @@ -21,7 +22,7 @@ unsigned long int_sqrt(unsigned long x) if (x <= 1) return x; - m = 1UL << (BITS_PER_LONG - 2); + m = 1UL << (__fls(x) & ~1UL); while (m != 0) { b = y + m; y >>= 1; diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile index 3057011f5599..10ca69475611 100644 --- a/lib/raid6/Makefile +++ b/lib/raid6/Makefile @@ -24,7 +24,7 @@ endif ifeq ($(CONFIG_KERNEL_MODE_NEON),y) NEON_FLAGS := -ffreestanding ifeq ($(ARCH),arm) -NEON_FLAGS += -mfloat-abi=softfp -mfpu=neon +NEON_FLAGS += -march=armv7-a -mfloat-abi=softfp -mfpu=neon endif ifeq ($(ARCH),arm64) CFLAGS_REMOVE_neon1.o += -mgeneral-regs-only diff --git a/lib/string.c b/lib/string.c index ed83562a53ae..1cd9757291b1 100644 --- a/lib/string.c +++ b/lib/string.c @@ -772,6 +772,26 @@ __visible int memcmp(const void *cs, const void *ct, size_t count) EXPORT_SYMBOL(memcmp); #endif +#ifndef __HAVE_ARCH_BCMP +/** + * bcmp - returns 0 if and only if the buffers have identical contents. + * @a: pointer to first buffer. + * @b: pointer to second buffer. + * @len: size of buffers. + * + * The sign or magnitude of a non-zero return value has no particular + * meaning, and architectures may implement their own more efficient bcmp(). So + * while this particular implementation is a simple (tail) call to memcmp, do + * not rely on anything but whether the return value is zero or non-zero. + */ +#undef bcmp +int bcmp(const void *a, const void *b, size_t len) +{ + return memcmp(a, b, len); +} +EXPORT_SYMBOL(bcmp); +#endif + #ifndef __HAVE_ARCH_MEMSCAN /** * memscan - Find a character in an area of memory. @@ -339,12 +339,14 @@ int __init cma_declare_contiguous(phys_addr_t base, ret = cma_init_reserved_mem(base, size, order_per_bit, res_cma); if (ret) - goto err; + goto free_mem; pr_info("Reserved %ld MiB at %pa\n", (unsigned long)size / SZ_1M, &base); return 0; +free_mem: + memblock_free(base, size); err: pr_err("Failed to reserve %ld MiB\n", (unsigned long)size / SZ_1M); return ret; @@ -1423,7 +1423,8 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end, if (pmd_none(pmd)) return 0; - if (unlikely(pmd_trans_huge(pmd) || pmd_huge(pmd))) { + if (unlikely(pmd_trans_huge(pmd) || pmd_huge(pmd) || + pmd_devmap(pmd))) { /* * NUMA hinting faults need to be handled in the GUP * slowpath for accounting purposes and so that they diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 4f1f5fd12042..d6524dce43b2 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1705,19 +1705,17 @@ static int soft_offline_in_use_page(struct page *page, int flags) struct page *hpage = compound_head(page); if (!PageHuge(page) && PageTransHuge(hpage)) { - lock_page(hpage); - if (!PageAnon(hpage) || unlikely(split_huge_page(hpage))) { - unlock_page(hpage); - if (!PageAnon(hpage)) + lock_page(page); + if (!PageAnon(page) || unlikely(split_huge_page(page))) { + unlock_page(page); + if (!PageAnon(page)) pr_info("soft offline: %#lx: non anonymous thp\n", page_to_pfn(page)); else pr_info("soft offline: %#lx: thp split failed\n", page_to_pfn(page)); - put_hwpoison_page(hpage); + put_hwpoison_page(page); return -EBUSY; } - unlock_page(hpage); - get_hwpoison_page(page); - put_hwpoison_page(hpage); + unlock_page(page); } if (PageHuge(page)) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 593b74bed59b..5cb5147235df 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -547,11 +547,16 @@ retry: goto retry; } - migrate_page_add(page, qp->pagelist, flags); + if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) { + if (!vma_migratable(vma)) + break; + migrate_page_add(page, qp->pagelist, flags); + } else + break; } pte_unmap_unlock(pte - 1, ptl); cond_resched(); - return 0; + return addr != end ? -EIO : 0; } static int queue_pages_hugetlb(pte_t *pte, unsigned long hmask, @@ -623,7 +628,12 @@ static int queue_pages_test_walk(unsigned long start, unsigned long end, unsigned long endvma = vma->vm_end; unsigned long flags = qp->flags; - if (!vma_migratable(vma)) + /* + * Need check MPOL_MF_STRICT to return -EIO if possible + * regardless of vma_migratable + */ + if (!vma_migratable(vma) && + !(flags & MPOL_MF_STRICT)) return 1; if (endvma > end) @@ -650,7 +660,7 @@ static int queue_pages_test_walk(unsigned long start, unsigned long end, } /* queue pages from current vma */ - if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) + if (flags & MPOL_MF_VALID) return 0; return 1; } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8cc077b717c2..cd10288a1dc2 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4017,11 +4017,11 @@ refill: /* Even if we own the page, we do not use atomic_set(). * This would break get_page_unless_zero() users. */ - page_ref_add(page, size - 1); + page_ref_add(page, size); /* reset page count bias and offset to start of new frag */ nc->pfmemalloc = page_is_pfmemalloc(page); - nc->pagecnt_bias = size; + nc->pagecnt_bias = size + 1; nc->offset = size; } @@ -4037,10 +4037,10 @@ refill: size = nc->size; #endif /* OK, page count is 0, we can safely set it */ - set_page_count(page, size); + set_page_count(page, size + 1); /* reset page count bias and offset to start of new frag */ - nc->pagecnt_bias = size; + nc->pagecnt_bias = size + 1; offset = size - fragsz; } diff --git a/mm/page_ext.c b/mm/page_ext.c index 121dcffc4ec1..a7be1c7a79f6 100644 --- a/mm/page_ext.c +++ b/mm/page_ext.c @@ -286,6 +286,7 @@ static void free_page_ext(void *addr) table_size = get_entry_size() * PAGES_PER_SECTION; BUG_ON(PageReserved(page)); + kmemleak_free(addr); free_pages_exact(addr, table_size); } } diff --git a/mm/shmem.c b/mm/shmem.c index 9b17bd4cbc5e..944242491059 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2896,16 +2896,20 @@ static int shmem_create(struct inode *dir, struct dentry *dentry, umode_t mode, static int shmem_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { struct inode *inode = d_inode(old_dentry); - int ret; + int ret = 0; /* * No ordinary (disk based) filesystem counts links as inodes; * but each new link needs a new dentry, pinning lowmem, and * tmpfs dentries cannot be pruned until they are unlinked. + * But if an O_TMPFILE file is linked into the tmpfs, the + * first link must skip that, to get the accounting right. */ - ret = shmem_reserve_inode(inode->i_sb); - if (ret) - goto out; + if (inode->i_nlink) { + ret = shmem_reserve_inode(inode->i_sb); + if (ret) + goto out; + } dir->i_size += BOGO_DIRENT_SIZE; inode->i_ctime = dir->i_ctime = dir->i_mtime = current_time(inode); diff --git a/mm/slab.c b/mm/slab.c index 354a09deecff..d2c0499c6b15 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -566,14 +566,6 @@ static void start_cpu_timer(int cpu) static void init_arraycache(struct array_cache *ac, int limit, int batch) { - /* - * The array_cache structures contain pointers to free object. - * However, when such objects are allocated or transferred to another - * cache the pointers are not cleared and they could be counted as - * valid references during a kmemleak scan. Therefore, kmemleak must - * not scan such objects. - */ - kmemleak_no_scan(ac); if (ac) { ac->avail = 0; ac->limit = limit; @@ -589,6 +581,14 @@ static struct array_cache *alloc_arraycache(int node, int entries, struct array_cache *ac = NULL; ac = kmalloc_node(memsize, gfp, node); + /* + * The array_cache structures contain pointers to free object. + * However, when such objects are allocated or transferred to another + * cache the pointers are not cleared and they could be counted as + * valid references during a kmemleak scan. Therefore, kmemleak must + * not scan such objects. + */ + kmemleak_no_scan(ac); init_arraycache(ac, entries, batchcount); return ac; } @@ -683,6 +683,7 @@ static struct alien_cache *__alloc_alien_cache(int node, int entries, alc = kmalloc_node(memsize, gfp, node); if (alc) { + kmemleak_no_scan(alc); init_arraycache(&alc->ac, entries, batch); spin_lock_init(&alc->lock); } diff --git a/mm/vmalloc.c b/mm/vmalloc.c index d9c5ec8cb2df..026a2a996df9 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -459,7 +459,11 @@ nocache: } found: - if (addr + size > vend) + /* + * Check also calculated address against the vstart, + * because it can be 0 because of big align request. + */ + if (addr + size > vend || addr < vstart) goto overflow; va->va_start = addr; @@ -2194,7 +2198,7 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr, if (!(area->flags & VM_USERMAP)) return -EINVAL; - if (kaddr + size > area->addr + area->size) + if (kaddr + size > area->addr + get_vm_area_size(area)) return -EINVAL; do { diff --git a/net/9p/client.c b/net/9p/client.c index 142afe70edb9..f1517ca8aba3 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1058,7 +1058,7 @@ struct p9_client *p9_client_create(const char *dev_name, char *options) p9_debug(P9_DEBUG_ERROR, "Please specify a msize of at least 4k\n"); err = -EINVAL; - goto free_client; + goto close_trans; } err = p9_client_version(clnt); diff --git a/net/9p/protocol.c b/net/9p/protocol.c index 145f80518064..7f1b45c082c9 100644 --- a/net/9p/protocol.c +++ b/net/9p/protocol.c @@ -570,9 +570,10 @@ int p9stat_read(struct p9_client *clnt, char *buf, int len, struct p9_wstat *st) if (ret) { p9_debug(P9_DEBUG_9P, "<<< p9stat_read failed: %d\n", ret); trace_9p_protocol_dump(clnt, &fake_pdu); + return ret; } - return ret; + return fake_pdu.offset; } EXPORT_SYMBOL(p9stat_read); diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c index af46bc49e1e9..b5f84f428aa6 100644 --- a/net/appletalk/atalk_proc.c +++ b/net/appletalk/atalk_proc.c @@ -293,7 +293,7 @@ out_interface: goto out; } -void __exit atalk_proc_exit(void) +void atalk_proc_exit(void) { remove_proc_entry("interface", atalk_proc_dir); remove_proc_entry("route", atalk_proc_dir); diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 10d2bdce686e..e206d98b3b82 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1912,12 +1912,16 @@ static const char atalk_err_snap[] __initconst = /* Called by proto.c on kernel start up */ static int __init atalk_init(void) { - int rc = proto_register(&ddp_proto, 0); + int rc; - if (rc != 0) + rc = proto_register(&ddp_proto, 0); + if (rc) goto out; - (void)sock_register(&atalk_family_ops); + rc = sock_register(&atalk_family_ops); + if (rc) + goto out_proto; + ddp_dl = register_snap_client(ddp_snap_id, atalk_rcv); if (!ddp_dl) printk(atalk_err_snap); @@ -1925,12 +1929,33 @@ static int __init atalk_init(void) dev_add_pack(<alk_packet_type); dev_add_pack(&ppptalk_packet_type); - register_netdevice_notifier(&ddp_notifier); + rc = register_netdevice_notifier(&ddp_notifier); + if (rc) + goto out_sock; + aarp_proto_init(); - atalk_proc_init(); - atalk_register_sysctl(); + rc = atalk_proc_init(); + if (rc) + goto out_aarp; + + rc = atalk_register_sysctl(); + if (rc) + goto out_proc; out: return rc; +out_proc: + atalk_proc_exit(); +out_aarp: + aarp_cleanup_module(); + unregister_netdevice_notifier(&ddp_notifier); +out_sock: + dev_remove_pack(&ppptalk_packet_type); + dev_remove_pack(<alk_packet_type); + unregister_snap_client(ddp_dl); + sock_unregister(PF_APPLETALK); +out_proto: + proto_unregister(&ddp_proto); + goto out; } module_init(atalk_init); diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c index ebb864361f7a..4e6042e0fcac 100644 --- a/net/appletalk/sysctl_net_atalk.c +++ b/net/appletalk/sysctl_net_atalk.c @@ -44,9 +44,12 @@ static struct ctl_table atalk_table[] = { static struct ctl_table_header *atalk_table_header; -void atalk_register_sysctl(void) +int __init atalk_register_sysctl(void) { atalk_table_header = register_net_sysctl(&init_net, "net/appletalk", atalk_table); + if (!atalk_table_header) + return -ENOMEM; + return 0; } void atalk_unregister_sysctl(void) diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 5de85b55a821..afd4c21cb81a 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -831,8 +831,6 @@ static int hci_sock_release(struct socket *sock) if (!sk) return 0; - hdev = hci_pi(sk)->hdev; - switch (hci_pi(sk)->channel) { case HCI_CHANNEL_MONITOR: atomic_dec(&monitor_promisc); @@ -854,6 +852,7 @@ static int hci_sock_release(struct socket *sock) bt_sock_unlink(&hci_sk_list, sk); + hdev = hci_pi(sk)->hdev; if (hdev) { if (hci_pi(sk)->channel == HCI_CHANNEL_USER) { /* When releasing an user channel exclusive access, diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 1fc23cb4a3e0..d49aa4e6c916 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -3326,16 +3326,22 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data while (len >= L2CAP_CONF_OPT_SIZE) { len -= l2cap_get_conf_opt(&req, &type, &olen, &val); + if (len < 0) + break; hint = type & L2CAP_CONF_HINT; type &= L2CAP_CONF_MASK; switch (type) { case L2CAP_CONF_MTU: + if (olen != 2) + break; mtu = val; break; case L2CAP_CONF_FLUSH_TO: + if (olen != 2) + break; chan->flush_to = val; break; @@ -3343,26 +3349,30 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data break; case L2CAP_CONF_RFC: - if (olen == sizeof(rfc)) - memcpy(&rfc, (void *) val, olen); + if (olen != sizeof(rfc)) + break; + memcpy(&rfc, (void *) val, olen); break; case L2CAP_CONF_FCS: + if (olen != 1) + break; if (val == L2CAP_FCS_NONE) set_bit(CONF_RECV_NO_FCS, &chan->conf_state); break; case L2CAP_CONF_EFS: - if (olen == sizeof(efs)) { - remote_efs = 1; - memcpy(&efs, (void *) val, olen); - } + if (olen != sizeof(efs)) + break; + remote_efs = 1; + memcpy(&efs, (void *) val, olen); break; case L2CAP_CONF_EWS: + if (olen != 2) + break; if (!(chan->conn->local_fixed_chan & L2CAP_FC_A2MP)) return -ECONNREFUSED; - set_bit(FLAG_EXT_CTRL, &chan->flags); set_bit(CONF_EWS_RECV, &chan->conf_state); chan->tx_win_max = L2CAP_DEFAULT_EXT_WINDOW; @@ -3372,7 +3382,6 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data default: if (hint) break; - result = L2CAP_CONF_UNKNOWN; *((u8 *) ptr++) = type; break; @@ -3537,58 +3546,65 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, while (len >= L2CAP_CONF_OPT_SIZE) { len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val); + if (len < 0) + break; switch (type) { case L2CAP_CONF_MTU: + if (olen != 2) + break; if (val < L2CAP_DEFAULT_MIN_MTU) { *result = L2CAP_CONF_UNACCEPT; chan->imtu = L2CAP_DEFAULT_MIN_MTU; } else chan->imtu = val; - l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu, endptr - ptr); + l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu, + endptr - ptr); break; case L2CAP_CONF_FLUSH_TO: + if (olen != 2) + break; chan->flush_to = val; - l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO, - 2, chan->flush_to, endptr - ptr); + l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO, 2, + chan->flush_to, endptr - ptr); break; case L2CAP_CONF_RFC: - if (olen == sizeof(rfc)) - memcpy(&rfc, (void *)val, olen); - + if (olen != sizeof(rfc)) + break; + memcpy(&rfc, (void *)val, olen); if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) && rfc.mode != chan->mode) return -ECONNREFUSED; - chan->fcs = 0; - - l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, - sizeof(rfc), (unsigned long) &rfc, endptr - ptr); + l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc), + (unsigned long) &rfc, endptr - ptr); break; case L2CAP_CONF_EWS: + if (olen != 2) + break; chan->ack_win = min_t(u16, val, chan->ack_win); l2cap_add_conf_opt(&ptr, L2CAP_CONF_EWS, 2, chan->tx_win, endptr - ptr); break; case L2CAP_CONF_EFS: - if (olen == sizeof(efs)) { - memcpy(&efs, (void *)val, olen); - - if (chan->local_stype != L2CAP_SERV_NOTRAFIC && - efs.stype != L2CAP_SERV_NOTRAFIC && - efs.stype != chan->local_stype) - return -ECONNREFUSED; - - l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs), - (unsigned long) &efs, endptr - ptr); - } + if (olen != sizeof(efs)) + break; + memcpy(&efs, (void *)val, olen); + if (chan->local_stype != L2CAP_SERV_NOTRAFIC && + efs.stype != L2CAP_SERV_NOTRAFIC && + efs.stype != chan->local_stype) + return -ECONNREFUSED; + l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs), + (unsigned long) &efs, endptr - ptr); break; case L2CAP_CONF_FCS: + if (olen != 1) + break; if (*result == L2CAP_CONF_PENDING) if (val == L2CAP_FCS_NONE) set_bit(CONF_RECV_NO_FCS, @@ -3717,13 +3733,18 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len) while (len >= L2CAP_CONF_OPT_SIZE) { len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val); + if (len < 0) + break; switch (type) { case L2CAP_CONF_RFC: - if (olen == sizeof(rfc)) - memcpy(&rfc, (void *)val, olen); + if (olen != sizeof(rfc)) + break; + memcpy(&rfc, (void *)val, olen); break; case L2CAP_CONF_EWS: + if (olen != 2) + break; txwin_ext = val; break; } diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c index 7e42c0d1f55b..38865deab3ac 100644 --- a/net/bridge/br_netfilter_hooks.c +++ b/net/bridge/br_netfilter_hooks.c @@ -878,11 +878,6 @@ static const struct nf_br_ops br_ops = { .br_dev_xmit_hook = br_nf_dev_xmit, }; -void br_netfilter_enable(void) -{ -} -EXPORT_SYMBOL_GPL(br_netfilter_enable); - /* For br_nf_post_routing, we need (prio = NF_BR_PRI_LAST), because * br_dev_queue_push_xmit is called afterwards */ static struct nf_hook_ops br_nf_ops[] __read_mostly = { diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index 464e88599b9d..bf0294cf4d22 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -699,7 +699,6 @@ int __ceph_open_session(struct ceph_client *client, unsigned long started) } EXPORT_SYMBOL(__ceph_open_session); - int ceph_open_session(struct ceph_client *client) { int ret; @@ -715,6 +714,23 @@ int ceph_open_session(struct ceph_client *client) } EXPORT_SYMBOL(ceph_open_session); +int ceph_wait_for_latest_osdmap(struct ceph_client *client, + unsigned long timeout) +{ + u64 newest_epoch; + int ret; + + ret = ceph_monc_get_version(&client->monc, "osdmap", &newest_epoch); + if (ret) + return ret; + + if (client->osdc.osdmap->epoch >= newest_epoch) + return 0; + + ceph_osdc_maybe_request_map(&client->osdc); + return ceph_monc_wait_osdmap(&client->monc, newest_epoch, timeout); +} +EXPORT_SYMBOL(ceph_wait_for_latest_osdmap); static int __init init_ceph_lib(void) { diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c index 500481003de4..288c1fcbcdf6 100644 --- a/net/ceph/mon_client.c +++ b/net/ceph/mon_client.c @@ -914,6 +914,15 @@ int ceph_monc_blacklist_add(struct ceph_mon_client *monc, mutex_unlock(&monc->mutex); ret = wait_generic_request(req); + if (!ret) + /* + * Make sure we have the osdmap that includes the blacklist + * entry. This is needed to ensure that the OSDs pick up the + * new blacklist before processing any future requests from + * this client. + */ + ret = ceph_wait_for_latest_osdmap(monc->client, 0); + out: put_generic_request(req); return ret; diff --git a/net/core/ethtool.c b/net/core/ethtool.c index a8a9938aeceb..20ae57fbe009 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -1801,17 +1801,22 @@ static int ethtool_get_strings(struct net_device *dev, void __user *useraddr) gstrings.len = ret; - data = kcalloc(gstrings.len, ETH_GSTRING_LEN, GFP_USER); - if (!data) - return -ENOMEM; + if (gstrings.len) { + data = kcalloc(gstrings.len, ETH_GSTRING_LEN, GFP_USER); + if (!data) + return -ENOMEM; - __ethtool_get_strings(dev, gstrings.string_set, data); + __ethtool_get_strings(dev, gstrings.string_set, data); + } else { + data = NULL; + } ret = -EFAULT; if (copy_to_user(useraddr, &gstrings, sizeof(gstrings))) goto out; useraddr += sizeof(gstrings); - if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN)) + if (gstrings.len && + copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN)) goto out; ret = 0; @@ -1899,17 +1904,21 @@ static int ethtool_get_stats(struct net_device *dev, void __user *useraddr) return -EFAULT; stats.n_stats = n_stats; - data = kmalloc(n_stats * sizeof(u64), GFP_USER); - if (!data) - return -ENOMEM; + if (n_stats) { + data = kmalloc(n_stats * sizeof(u64), GFP_USER); + if (!data) + return -ENOMEM; - ops->get_ethtool_stats(dev, &stats, data); + ops->get_ethtool_stats(dev, &stats, data); + } else { + data = NULL; + } ret = -EFAULT; if (copy_to_user(useraddr, &stats, sizeof(stats))) goto out; useraddr += sizeof(stats); - if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64))) + if (n_stats && copy_to_user(useraddr, data, n_stats * sizeof(u64))) goto out; ret = 0; @@ -1938,19 +1947,23 @@ static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr) return -EFAULT; stats.n_stats = n_stats; - data = kmalloc_array(n_stats, sizeof(u64), GFP_USER); - if (!data) - return -ENOMEM; + if (n_stats) { + data = kmalloc_array(n_stats, sizeof(u64), GFP_USER); + if (!data) + return -ENOMEM; - mutex_lock(&phydev->lock); - phydev->drv->get_stats(phydev, &stats, data); - mutex_unlock(&phydev->lock); + mutex_lock(&phydev->lock); + phydev->drv->get_stats(phydev, &stats, data); + mutex_unlock(&phydev->lock); + } else { + data = NULL; + } ret = -EFAULT; if (copy_to_user(useraddr, &stats, sizeof(stats))) goto out; useraddr += sizeof(stats); - if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64))) + if (n_stats && copy_to_user(useraddr, data, n_stats * sizeof(u64))) goto out; ret = 0; diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 04fd04ccaa04..4509dec7bd1c 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -282,6 +282,7 @@ static __net_init int setup_net(struct net *net, struct user_namespace *user_ns) atomic_set(&net->count, 1); atomic_set(&net->passive, 1); + get_random_bytes(&net->hash_mix, sizeof(u32)); net->dev_base_seq = 1; net->user_ns = user_ns; idr_init(&net->netns_ids); diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index 28ad6f187e19..1d6d3aaa8c3d 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -596,13 +596,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb) if (inet_csk_reqsk_queue_is_full(sk)) goto drop; - /* - * Accept backlog is full. If we have already queued enough - * of warm entries in syn queue, drop request. It is better than - * clogging syn queue with openreqs with exponentially increasing - * timeout. - */ - if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1) + if (sk_acceptq_is_full(sk)) goto drop; req = inet_reqsk_alloc(&dccp_request_sock_ops, sk, true); diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 6cbcf399d22b..87c513b5ff2e 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -328,7 +328,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb) if (inet_csk_reqsk_queue_is_full(sk)) goto drop; - if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1) + if (sk_acceptq_is_full(sk)) goto drop; req = inet_reqsk_alloc(&dccp6_request_sock_ops, sk, true); @@ -431,8 +431,8 @@ static struct sock *dccp_v6_request_recv_sock(const struct sock *sk, newnp->ipv6_mc_list = NULL; newnp->ipv6_ac_list = NULL; newnp->ipv6_fl_list = NULL; - newnp->mcast_oif = inet6_iif(skb); - newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; + newnp->mcast_oif = inet_iif(skb); + newnp->mcast_hops = ip_hdr(skb)->ttl; /* * No need to charge this sock to the relevant IPv6 refcnt debug socks count diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index 16737cd8dae8..52694cb759b0 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -94,9 +94,8 @@ static void hsr_check_announce(struct net_device *hsr_dev, && (old_operstate != IF_OPER_UP)) { /* Went up */ hsr->announce_count = 0; - hsr->announce_timer.expires = jiffies + - msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL); - add_timer(&hsr->announce_timer); + mod_timer(&hsr->announce_timer, + jiffies + msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL)); } if ((hsr_dev->operstate != IF_OPER_UP) && (old_operstate == IF_OPER_UP)) @@ -331,6 +330,7 @@ static void hsr_announce(unsigned long data) { struct hsr_priv *hsr; struct hsr_port *master; + unsigned long interval; hsr = (struct hsr_priv *) data; @@ -342,18 +342,16 @@ static void hsr_announce(unsigned long data) hsr->protVersion); hsr->announce_count++; - hsr->announce_timer.expires = jiffies + - msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL); + interval = msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL); } else { send_hsr_supervision_frame(master, HSR_TLV_LIFE_CHECK, hsr->protVersion); - hsr->announce_timer.expires = jiffies + - msecs_to_jiffies(HSR_LIFE_CHECK_INTERVAL); + interval = msecs_to_jiffies(HSR_LIFE_CHECK_INTERVAL); } if (is_admin_up(master->dev)) - add_timer(&hsr->announce_timer); + mod_timer(&hsr->announce_timer, jiffies + interval); rcu_read_unlock(); } @@ -485,7 +483,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], res = hsr_add_port(hsr, hsr_dev, HSR_PT_MASTER); if (res) - return res; + goto err_add_port; res = register_netdevice(hsr_dev); if (res) @@ -505,6 +503,8 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], fail: hsr_for_each_port(hsr, port) hsr_del_port(port); +err_add_port: + hsr_del_node(&hsr->self_node_db); return res; } diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index 284a9b820df8..6705420b3111 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -124,6 +124,18 @@ int hsr_create_self_node(struct list_head *self_node_db, return 0; } +void hsr_del_node(struct list_head *self_node_db) +{ + struct hsr_node *node; + + rcu_read_lock(); + node = list_first_or_null_rcu(self_node_db, struct hsr_node, mac_list); + rcu_read_unlock(); + if (node) { + list_del_rcu(&node->mac_list); + kfree(node); + } +} /* Allocate an hsr_node and add it to node_db. 'addr' is the node's AddressA; * seq_out is used to initialize filtering of outgoing duplicate frames diff --git a/net/hsr/hsr_framereg.h b/net/hsr/hsr_framereg.h index 4e04f0e868e9..43958a338095 100644 --- a/net/hsr/hsr_framereg.h +++ b/net/hsr/hsr_framereg.h @@ -16,6 +16,7 @@ struct hsr_node; +void hsr_del_node(struct list_head *self_node_db); struct hsr_node *hsr_add_node(struct list_head *node_db, unsigned char addr[], u16 seq_out); struct hsr_node *hsr_get_node(struct hsr_port *port, struct sk_buff *skb, diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 528a6777cda0..1bcbb7399fe6 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -790,7 +790,6 @@ static void inet_child_forget(struct sock *sk, struct request_sock *req, tcp_sk(child)->fastopen_rsk = NULL; } inet_csk_destroy_sock(child); - reqsk_put(req); } struct sock *inet_csk_reqsk_queue_add(struct sock *sk, @@ -861,6 +860,7 @@ void inet_csk_listen_stop(struct sock *sk) sock_hold(child); inet_child_forget(sk, req, child); + reqsk_put(req); bh_unlock_sock(child); local_bh_enable(); sock_put(child); diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index bcadca26523b..ce0ce1401f28 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -259,11 +259,10 @@ int ip_local_deliver(struct sk_buff *skb) ip_local_deliver_finish); } -static inline bool ip_rcv_options(struct sk_buff *skb) +static inline bool ip_rcv_options(struct sk_buff *skb, struct net_device *dev) { struct ip_options *opt; const struct iphdr *iph; - struct net_device *dev = skb->dev; /* It looks as overkill, because not all IP options require packet mangling. @@ -299,7 +298,7 @@ static inline bool ip_rcv_options(struct sk_buff *skb) } } - if (ip_options_rcv_srr(skb)) + if (ip_options_rcv_srr(skb, dev)) goto drop; } @@ -361,7 +360,7 @@ static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb) } #endif - if (iph->ihl > 5 && ip_rcv_options(skb)) + if (iph->ihl > 5 && ip_rcv_options(skb, dev)) goto drop; rt = skb_rtable(skb); diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c index 4cd3b5ad9cee..570cdb547234 100644 --- a/net/ipv4/ip_options.c +++ b/net/ipv4/ip_options.c @@ -614,7 +614,7 @@ void ip_forward_options(struct sk_buff *skb) } } -int ip_options_rcv_srr(struct sk_buff *skb) +int ip_options_rcv_srr(struct sk_buff *skb, struct net_device *dev) { struct ip_options *opt = &(IPCB(skb)->opt); int srrspace, srrptr; @@ -649,7 +649,7 @@ int ip_options_rcv_srr(struct sk_buff *skb) orefdst = skb->_skb_refdst; skb_dst_set(skb, NULL); - err = ip_route_input(skb, nexthop, iph->saddr, iph->tos, skb->dev); + err = ip_route_input(skb, nexthop, iph->saddr, iph->tos, dev); rt2 = skb_rtable(skb); if (err || (rt2->rt_type != RTN_UNICAST && rt2->rt_type != RTN_LOCAL)) { skb_dst_drop(skb); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index d606de65e2d0..c42fb2330b45 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1613,6 +1613,10 @@ static void ip_del_fnhe(struct fib_nh *nh, __be32 daddr) if (fnhe->fnhe_daddr == daddr) { rcu_assign_pointer(*fnhe_p, rcu_dereference_protected( fnhe->fnhe_next, lockdep_is_held(&fnhe_lock))); + /* set fnhe_daddr to 0 to ensure it won't bind with + * new dsts in rt_bind_exception(). + */ + fnhe->fnhe_daddr = 0; fnhe_flush_routes(fnhe); kfree_rcu(fnhe, rcu); break; diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index 0597ad73a1fa..b596c413d297 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -225,7 +225,12 @@ struct sock *tcp_get_cookie_sock(struct sock *sk, struct sk_buff *skb, if (child) { atomic_set(&req->rsk_refcnt, 1); sock_rps_save_rxhash(child, skb); - inet_csk_reqsk_queue_add(sk, req, child); + if (!inet_csk_reqsk_queue_add(sk, req, child)) { + bh_unlock_sock(child); + sock_put(child); + child = NULL; + reqsk_put(req); + } } else { reqsk_free(req); } diff --git a/net/ipv4/tcp_dctcp.c b/net/ipv4/tcp_dctcp.c index a08cedf9d286..910ef01759e7 100644 --- a/net/ipv4/tcp_dctcp.c +++ b/net/ipv4/tcp_dctcp.c @@ -66,11 +66,6 @@ static unsigned int dctcp_alpha_on_init __read_mostly = DCTCP_MAX_ALPHA; module_param(dctcp_alpha_on_init, uint, 0644); MODULE_PARM_DESC(dctcp_alpha_on_init, "parameter for initial alpha value"); -static unsigned int dctcp_clamp_alpha_on_loss __read_mostly; -module_param(dctcp_clamp_alpha_on_loss, uint, 0644); -MODULE_PARM_DESC(dctcp_clamp_alpha_on_loss, - "parameter for clamping alpha on loss"); - static struct tcp_congestion_ops dctcp_reno; static void dctcp_reset(const struct tcp_sock *tp, struct dctcp *ca) @@ -211,21 +206,23 @@ static void dctcp_update_alpha(struct sock *sk, u32 flags) } } -static void dctcp_state(struct sock *sk, u8 new_state) +static void dctcp_react_to_loss(struct sock *sk) { - if (dctcp_clamp_alpha_on_loss && new_state == TCP_CA_Loss) { - struct dctcp *ca = inet_csk_ca(sk); + struct dctcp *ca = inet_csk_ca(sk); + struct tcp_sock *tp = tcp_sk(sk); - /* If this extension is enabled, we clamp dctcp_alpha to - * max on packet loss; the motivation is that dctcp_alpha - * is an indicator to the extend of congestion and packet - * loss is an indicator of extreme congestion; setting - * this in practice turned out to be beneficial, and - * effectively assumes total congestion which reduces the - * window by half. - */ - ca->dctcp_alpha = DCTCP_MAX_ALPHA; - } + ca->loss_cwnd = tp->snd_cwnd; + tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U); +} + +static void dctcp_state(struct sock *sk, u8 new_state) +{ + if (new_state == TCP_CA_Recovery && + new_state != inet_csk(sk)->icsk_ca_state) + dctcp_react_to_loss(sk); + /* We handle RTO in dctcp_cwnd_event to ensure that we perform only + * one loss-adjustment per RTT. + */ } static void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev) @@ -237,6 +234,9 @@ static void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev) case CA_EVENT_ECN_NO_CE: dctcp_ce_state_1_to_0(sk); break; + case CA_EVENT_LOSS: + dctcp_react_to_loss(sk); + break; default: /* Don't care for the rest. */ break; diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index dbb153c6b21a..cd4f13dda49e 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -6374,13 +6374,7 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops, goto drop; } - - /* Accept backlog is full. If we have already queued enough - * of warm entries in syn queue, drop request. It is better than - * clogging syn queue with openreqs with exponentially increasing - * timeout. - */ - if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1) { + if (sk_acceptq_is_full(sk)) { NET_INC_STATS(sock_net(sk), LINUX_MIB_LISTENOVERFLOWS); goto drop; } @@ -6479,7 +6473,13 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops, af_ops->send_synack(fastopen_sk, dst, &fl, req, &foc, TCP_SYNACK_FASTOPEN); /* Add the child socket directly into the accept queue */ - inet_csk_reqsk_queue_add(sk, req, fastopen_sk); + if (!inet_csk_reqsk_queue_add(sk, req, fastopen_sk)) { + reqsk_fastopen_remove(fastopen_sk, req, false); + bh_unlock_sock(fastopen_sk); + sock_put(fastopen_sk); + reqsk_put(req); + goto drop; + } sk->sk_data_ready(sk); bh_unlock_sock(fastopen_sk); sock_put(fastopen_sk); diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index b723987761be..11407dd6bc7c 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -592,7 +592,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb, inet6_sk(skb->sk) : NULL; struct ipv6hdr *tmp_hdr; struct frag_hdr *fh; - unsigned int mtu, hlen, left, len; + unsigned int mtu, hlen, left, len, nexthdr_offset; int hroom, troom; __be32 frag_id; int ptr, offset = 0, err = 0; @@ -603,6 +603,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb, goto fail; hlen = err; nexthdr = *prevhdr; + nexthdr_offset = prevhdr - skb_network_header(skb); mtu = ip6_skb_dst_mtu(skb); @@ -637,6 +638,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb, (err = skb_checksum_help(skb))) goto fail; + prevhdr = skb_network_header(skb) + nexthdr_offset; hroom = LL_RESERVED_SPACE(rt->dst.dev); if (skb_has_frag_list(skb)) { int first_len = skb_pagelen(skb); diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index f89516d04150..42f363661d25 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -634,7 +634,7 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, IPPROTO_IPIP, RT_TOS(eiph->tos), 0); if (IS_ERR(rt) || - rt->dst.dev->type != ARPHRD_TUNNEL) { + rt->dst.dev->type != ARPHRD_TUNNEL6) { if (!IS_ERR(rt)) ip_rt_put(rt); goto out; @@ -644,7 +644,7 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, ip_rt_put(rt); if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos, skb2->dev) || - skb_dst(skb2)->dev->type != ARPHRD_TUNNEL) + skb_dst(skb2)->dev->type != ARPHRD_TUNNEL6) goto out; } diff --git a/net/ipv6/route.c b/net/ipv6/route.c index b0a72677b7e5..27c93baed708 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3211,7 +3211,7 @@ static int rt6_fill_node(struct net *net, table = rt->rt6i_table->tb6_id; else table = RT6_TABLE_UNSPEC; - rtm->rtm_table = table; + rtm->rtm_table = table < 256 ? table : RT_TABLE_COMPAT; if (nla_put_u32(skb, RTA_TABLE, table)) goto nla_put_failure; if (rt->rt6i_flags & RTF_REJECT) { diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 75de3dd8b862..be74eee0e8ff 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -661,6 +661,10 @@ static int ipip6_rcv(struct sk_buff *skb) !net_eq(tunnel->net, dev_net(tunnel->dev)))) goto out; + /* skb can be uncloned in iptunnel_pull_header, so + * old iph is no longer valid + */ + iph = (const struct iphdr *)skb_mac_header(skb); err = IP_ECN_decapsulate(iph, skb); if (unlikely(err)) { if (log_ecn_error) @@ -767,8 +771,9 @@ static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst, pbw0 = tunnel->ip6rd.prefixlen >> 5; pbi0 = tunnel->ip6rd.prefixlen & 0x1f; - d = (ntohl(v6dst->s6_addr32[pbw0]) << pbi0) >> - tunnel->ip6rd.relay_prefixlen; + d = tunnel->ip6rd.relay_prefixlen < 32 ? + (ntohl(v6dst->s6_addr32[pbw0]) << pbi0) >> + tunnel->ip6rd.relay_prefixlen : 0; pbi1 = pbi0 - tunnel->ip6rd.relay_prefixlen; if (pbi1 > 0) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 0a69d39880f2..4953466cf98f 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1056,11 +1056,11 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff * newnp->ipv6_fl_list = NULL; newnp->pktoptions = NULL; newnp->opt = NULL; - newnp->mcast_oif = tcp_v6_iif(skb); - newnp->mcast_hops = ipv6_hdr(skb)->hop_limit; - newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb)); + newnp->mcast_oif = inet_iif(skb); + newnp->mcast_hops = ip_hdr(skb)->ttl; + newnp->rcv_flowinfo = 0; if (np->repflow) - newnp->flow_label = ip6_flowlabel(ipv6_hdr(skb)); + newnp->flow_label = 0; /* * No need to charge this sock to the relevant IPv6 refcnt debug socks count diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index 553d0ad4a2fa..2f3cd09ee0df 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -2058,14 +2058,14 @@ static int __init kcm_init(void) if (err) goto fail; - err = sock_register(&kcm_family_ops); - if (err) - goto sock_register_fail; - err = register_pernet_device(&kcm_net_ops); if (err) goto net_ops_fail; + err = sock_register(&kcm_family_ops); + if (err) + goto sock_register_fail; + err = kcm_proc_init(); if (err) goto proc_init_fail; @@ -2073,12 +2073,12 @@ static int __init kcm_init(void) return 0; proc_init_fail: - unregister_pernet_device(&kcm_net_ops); - -net_ops_fail: sock_unregister(PF_KCM); sock_register_fail: + unregister_pernet_device(&kcm_net_ops); + +net_ops_fail: proto_unregister(&kcm_proto); fail: @@ -2094,8 +2094,8 @@ fail: static void __exit kcm_exit(void) { kcm_proc_exit(); - unregister_pernet_device(&kcm_net_ops); sock_unregister(PF_KCM); + unregister_pernet_device(&kcm_net_ops); proto_unregister(&kcm_proto); destroy_workqueue(kcm_wq); diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 5e6d09863480..8d412b9b0214 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -680,9 +680,6 @@ static int l2tp_ip6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, if (flags & MSG_OOB) goto out; - if (addr_len) - *addr_len = sizeof(*lsa); - if (flags & MSG_ERRQUEUE) return ipv6_recv_error(sk, msg, len, addr_len); @@ -712,6 +709,7 @@ static int l2tp_ip6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, lsa->l2tp_conn_id = 0; if (ipv6_addr_type(&lsa->l2tp_addr) & IPV6_ADDR_LINKLOCAL) lsa->l2tp_scope_id = inet6_iif(skb); + *addr_len = sizeof(*lsa); } if (np->rxopt.all) diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c index bb33598e4530..ec247d8370e8 100644 --- a/net/netfilter/xt_physdev.c +++ b/net/netfilter/xt_physdev.c @@ -96,8 +96,7 @@ match_outdev: static int physdev_mt_check(const struct xt_mtchk_param *par) { const struct xt_physdev_info *info = par->matchinfo; - - br_netfilter_enable(); + static bool brnf_probed __read_mostly; if (!(info->bitmask & XT_PHYSDEV_OP_MASK) || info->bitmask & ~XT_PHYSDEV_OP_MASK) @@ -113,6 +112,12 @@ static int physdev_mt_check(const struct xt_mtchk_param *par) if (par->hook_mask & (1 << NF_INET_LOCAL_OUT)) return -EINVAL; } + + if (!brnf_probed) { + brnf_probed = true; + request_module("br_netfilter"); + } + return 0; } diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c index 3bd4d5d0c346..50ea76180afa 100644 --- a/net/openvswitch/flow_netlink.c +++ b/net/openvswitch/flow_netlink.c @@ -1853,14 +1853,14 @@ static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa, struct sw_flow_actions *acts; int new_acts_size; - int req_size = NLA_ALIGN(attr_len); + size_t req_size = NLA_ALIGN(attr_len); int next_offset = offsetof(struct sw_flow_actions, actions) + (*sfa)->actions_len; if (req_size <= (ksize(*sfa) - next_offset)) goto out; - new_acts_size = ksize(*sfa) * 2; + new_acts_size = max(next_offset + req_size, ksize(*sfa) * 2); if (new_acts_size > MAX_ACTIONS_BUFSIZE) { if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size) { diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 90818bfc7ace..9021a8ebc9e0 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -3279,7 +3279,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol, } mutex_lock(&net->packet.sklist_lock); - sk_add_node_rcu(sk, &net->packet.sklist); + sk_add_node_tail_rcu(sk, &net->packet.sklist); mutex_unlock(&net->packet.sklist_lock); preempt_disable(); @@ -4230,7 +4230,7 @@ static struct pgv *alloc_pg_vec(struct tpacket_req *req, int order) struct pgv *pg_vec; int i; - pg_vec = kcalloc(block_nr, sizeof(struct pgv), GFP_KERNEL); + pg_vec = kcalloc(block_nr, sizeof(struct pgv), GFP_KERNEL | __GFP_NOWARN); if (unlikely(!pg_vec)) goto out; diff --git a/net/phonet/pep.c b/net/phonet/pep.c index 850a86cde0b3..f6aa532bcbf6 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -131,7 +131,7 @@ static int pep_indicate(struct sock *sk, u8 id, u8 code, ph->utid = 0; ph->message_id = id; ph->pipe_handle = pn->pipe_handle; - ph->data[0] = code; + ph->error_code = code; return pn_skb_send(sk, skb, NULL); } @@ -152,7 +152,7 @@ static int pipe_handler_request(struct sock *sk, u8 id, u8 code, ph->utid = id; /* whatever */ ph->message_id = id; ph->pipe_handle = pn->pipe_handle; - ph->data[0] = code; + ph->error_code = code; return pn_skb_send(sk, skb, NULL); } @@ -207,7 +207,7 @@ static int pep_ctrlreq_error(struct sock *sk, struct sk_buff *oskb, u8 code, struct pnpipehdr *ph; struct sockaddr_pn dst; u8 data[4] = { - oph->data[0], /* PEP type */ + oph->pep_type, /* PEP type */ code, /* error code, at an unusual offset */ PAD, PAD, }; @@ -220,7 +220,7 @@ static int pep_ctrlreq_error(struct sock *sk, struct sk_buff *oskb, u8 code, ph->utid = oph->utid; ph->message_id = PNS_PEP_CTRL_RESP; ph->pipe_handle = oph->pipe_handle; - ph->data[0] = oph->data[1]; /* CTRL id */ + ph->data0 = oph->data[0]; /* CTRL id */ pn_skb_get_src_sockaddr(oskb, &dst); return pn_skb_send(sk, skb, &dst); @@ -271,17 +271,17 @@ static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb) return -EINVAL; hdr = pnp_hdr(skb); - if (hdr->data[0] != PN_PEP_TYPE_COMMON) { + if (hdr->pep_type != PN_PEP_TYPE_COMMON) { net_dbg_ratelimited("Phonet unknown PEP type: %u\n", - (unsigned int)hdr->data[0]); + (unsigned int)hdr->pep_type); return -EOPNOTSUPP; } - switch (hdr->data[1]) { + switch (hdr->data[0]) { case PN_PEP_IND_FLOW_CONTROL: switch (pn->tx_fc) { case PN_LEGACY_FLOW_CONTROL: - switch (hdr->data[4]) { + switch (hdr->data[3]) { case PEP_IND_BUSY: atomic_set(&pn->tx_credits, 0); break; @@ -291,7 +291,7 @@ static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb) } break; case PN_ONE_CREDIT_FLOW_CONTROL: - if (hdr->data[4] == PEP_IND_READY) + if (hdr->data[3] == PEP_IND_READY) atomic_set(&pn->tx_credits, wake = 1); break; } @@ -300,12 +300,12 @@ static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb) case PN_PEP_IND_ID_MCFC_GRANT_CREDITS: if (pn->tx_fc != PN_MULTI_CREDIT_FLOW_CONTROL) break; - atomic_add(wake = hdr->data[4], &pn->tx_credits); + atomic_add(wake = hdr->data[3], &pn->tx_credits); break; default: net_dbg_ratelimited("Phonet unknown PEP indication: %u\n", - (unsigned int)hdr->data[1]); + (unsigned int)hdr->data[0]); return -EOPNOTSUPP; } if (wake) @@ -317,7 +317,7 @@ static int pipe_rcv_created(struct sock *sk, struct sk_buff *skb) { struct pep_sock *pn = pep_sk(sk); struct pnpipehdr *hdr = pnp_hdr(skb); - u8 n_sb = hdr->data[0]; + u8 n_sb = hdr->data0; pn->rx_fc = pn->tx_fc = PN_LEGACY_FLOW_CONTROL; __skb_pull(skb, sizeof(*hdr)); @@ -505,7 +505,7 @@ static int pep_connresp_rcv(struct sock *sk, struct sk_buff *skb) return -ECONNREFUSED; /* Parse sub-blocks */ - n_sb = hdr->data[4]; + n_sb = hdr->data[3]; while (n_sb > 0) { u8 type, buf[6], len = sizeof(buf); const u8 *data = pep_get_sb(skb, &type, &len, buf); @@ -738,7 +738,7 @@ static int pipe_do_remove(struct sock *sk) ph->utid = 0; ph->message_id = PNS_PIPE_REMOVE_REQ; ph->pipe_handle = pn->pipe_handle; - ph->data[0] = PAD; + ph->data0 = PAD; return pn_skb_send(sk, skb, NULL); } @@ -815,7 +815,7 @@ static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp) peer_type = hdr->other_pep_type << 8; /* Parse sub-blocks (options) */ - n_sb = hdr->data[4]; + n_sb = hdr->data[3]; while (n_sb > 0) { u8 type, buf[1], len = sizeof(buf); const u8 *data = pep_get_sb(skb, &type, &len, buf); @@ -1106,7 +1106,7 @@ static int pipe_skb_send(struct sock *sk, struct sk_buff *skb) ph->utid = 0; if (pn->aligned) { ph->message_id = PNS_PIPE_ALIGNED_DATA; - ph->data[0] = 0; /* padding */ + ph->data0 = 0; /* padding */ } else ph->message_id = PNS_PIPE_DATA; ph->pipe_handle = pn->pipe_handle; diff --git a/net/rds/tcp.c b/net/rds/tcp.c index d36effbf7614..2daba5316caa 100644 --- a/net/rds/tcp.c +++ b/net/rds/tcp.c @@ -527,7 +527,7 @@ static void rds_tcp_kill_sock(struct net *net) list_for_each_entry_safe(tc, _tc, &rds_tcp_conn_list, t_tcp_node) { struct net *c_net = read_pnet(&tc->t_cpath->cp_conn->c_net); - if (net != c_net || !tc->t_sock) + if (net != c_net) continue; if (!list_has_conn(&tmp_list, tc->t_cpath->cp_conn)) { list_move_tail(&tc->t_tcp_node, &tmp_list); diff --git a/net/rose/rose_subr.c b/net/rose/rose_subr.c index 7ca57741b2fb..7849f286bb93 100644 --- a/net/rose/rose_subr.c +++ b/net/rose/rose_subr.c @@ -105,16 +105,17 @@ void rose_write_internal(struct sock *sk, int frametype) struct sk_buff *skb; unsigned char *dptr; unsigned char lci1, lci2; - char buffer[100]; - int len, faclen = 0; + int maxfaclen = 0; + int len, faclen; + int reserve; - len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN + 1; + reserve = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + 1; + len = ROSE_MIN_LEN; switch (frametype) { case ROSE_CALL_REQUEST: len += 1 + ROSE_ADDR_LEN + ROSE_ADDR_LEN; - faclen = rose_create_facilities(buffer, rose); - len += faclen; + maxfaclen = 256; break; case ROSE_CALL_ACCEPTED: case ROSE_CLEAR_REQUEST: @@ -123,15 +124,16 @@ void rose_write_internal(struct sock *sk, int frametype) break; } - if ((skb = alloc_skb(len, GFP_ATOMIC)) == NULL) + skb = alloc_skb(reserve + len + maxfaclen, GFP_ATOMIC); + if (!skb) return; /* * Space for AX.25 header and PID. */ - skb_reserve(skb, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + 1); + skb_reserve(skb, reserve); - dptr = skb_put(skb, skb_tailroom(skb)); + dptr = skb_put(skb, len); lci1 = (rose->lci >> 8) & 0x0F; lci2 = (rose->lci >> 0) & 0xFF; @@ -146,7 +148,8 @@ void rose_write_internal(struct sock *sk, int frametype) dptr += ROSE_ADDR_LEN; memcpy(dptr, &rose->source_addr, ROSE_ADDR_LEN); dptr += ROSE_ADDR_LEN; - memcpy(dptr, buffer, faclen); + faclen = rose_create_facilities(dptr, rose); + skb_put(skb, faclen); dptr += faclen; break; diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c index 60ef9605167e..0fce919bf47d 100644 --- a/net/rxrpc/conn_client.c +++ b/net/rxrpc/conn_client.c @@ -355,7 +355,7 @@ static int rxrpc_get_client_conn(struct rxrpc_call *call, * normally have to take channel_lock but we do this before anyone else * can see the connection. */ - list_add_tail(&call->chan_wait_link, &candidate->waiting_calls); + list_add(&call->chan_wait_link, &candidate->waiting_calls); if (cp->exclusive) { call->conn = candidate; @@ -430,7 +430,7 @@ found_extant_conn: spin_lock(&conn->channel_lock); call->conn = conn; call->security_ix = conn->security_ix; - list_add(&call->chan_wait_link, &conn->waiting_calls); + list_add_tail(&call->chan_wait_link, &conn->waiting_calls); spin_unlock(&conn->channel_lock); _leave(" = 0 [extant %d]", conn->debug_id); return 0; diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 8ea8217db960..d6af93a24aa0 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -600,6 +600,7 @@ out: static int sctp_v4_addr_to_user(struct sctp_sock *sp, union sctp_addr *addr) { /* No address mapping for V4 sockets */ + memset(addr->v4.sin_zero, 0, sizeof(addr->v4.sin_zero)); return sizeof(struct sockaddr_in); } diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 915abe98174e..cecf51a5aec4 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -891,7 +891,7 @@ retry: addr->hash ^= sk->sk_type; __unix_remove_socket(sk); - u->addr = addr; + smp_store_release(&u->addr, addr); __unix_insert_socket(&unix_socket_table[addr->hash], sk); spin_unlock(&unix_table_lock); err = 0; @@ -1061,7 +1061,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) err = 0; __unix_remove_socket(sk); - u->addr = addr; + smp_store_release(&u->addr, addr); __unix_insert_socket(list, sk); out_unlock: @@ -1332,15 +1332,29 @@ restart: RCU_INIT_POINTER(newsk->sk_wq, &newu->peer_wq); otheru = unix_sk(other); - /* copy address information from listening to new sock*/ - if (otheru->addr) { - atomic_inc(&otheru->addr->refcnt); - newu->addr = otheru->addr; - } + /* copy address information from listening to new sock + * + * The contents of *(otheru->addr) and otheru->path + * are seen fully set up here, since we have found + * otheru in hash under unix_table_lock. Insertion + * into the hash chain we'd found it in had been done + * in an earlier critical area protected by unix_table_lock, + * the same one where we'd set *(otheru->addr) contents, + * as well as otheru->path and otheru->addr itself. + * + * Using smp_store_release() here to set newu->addr + * is enough to make those stores, as well as stores + * to newu->path visible to anyone who gets newu->addr + * by smp_load_acquire(). IOW, the same warranties + * as for unix_sock instances bound in unix_bind() or + * in unix_autobind(). + */ if (otheru->path.dentry) { path_get(&otheru->path); newu->path = otheru->path; } + atomic_inc(&otheru->addr->refcnt); + smp_store_release(&newu->addr, otheru->addr); /* Set credentials */ copy_peercred(sk, other); @@ -1453,7 +1467,7 @@ out: static int unix_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer) { struct sock *sk = sock->sk; - struct unix_sock *u; + struct unix_address *addr; DECLARE_SOCKADDR(struct sockaddr_un *, sunaddr, uaddr); int err = 0; @@ -1468,19 +1482,15 @@ static int unix_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_ sock_hold(sk); } - u = unix_sk(sk); - unix_state_lock(sk); - if (!u->addr) { + addr = smp_load_acquire(&unix_sk(sk)->addr); + if (!addr) { sunaddr->sun_family = AF_UNIX; sunaddr->sun_path[0] = 0; *uaddr_len = sizeof(short); } else { - struct unix_address *addr = u->addr; - *uaddr_len = addr->len; memcpy(sunaddr, addr->name, *uaddr_len); } - unix_state_unlock(sk); sock_put(sk); out: return err; @@ -2094,11 +2104,11 @@ static int unix_seqpacket_recvmsg(struct socket *sock, struct msghdr *msg, static void unix_copy_addr(struct msghdr *msg, struct sock *sk) { - struct unix_sock *u = unix_sk(sk); + struct unix_address *addr = smp_load_acquire(&unix_sk(sk)->addr); - if (u->addr) { - msg->msg_namelen = u->addr->len; - memcpy(msg->msg_name, u->addr->name, u->addr->len); + if (addr) { + msg->msg_namelen = addr->len; + memcpy(msg->msg_name, addr->name, addr->len); } } @@ -2814,7 +2824,7 @@ static int unix_seq_show(struct seq_file *seq, void *v) (s->sk_state == TCP_ESTABLISHED ? SS_CONNECTING : SS_DISCONNECTING), sock_i_ino(s)); - if (u->addr) { + if (u->addr) { // under unix_table_lock here int i, len; seq_putc(seq, ' '); diff --git a/net/unix/diag.c b/net/unix/diag.c index 384c84e83462..3183d9b8ab33 100644 --- a/net/unix/diag.c +++ b/net/unix/diag.c @@ -10,7 +10,8 @@ static int sk_diag_dump_name(struct sock *sk, struct sk_buff *nlskb) { - struct unix_address *addr = unix_sk(sk)->addr; + /* might or might not have unix_table_lock */ + struct unix_address *addr = smp_load_acquire(&unix_sk(sk)->addr); if (!addr) return 0; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 549d0a4083b3..09a353c6373a 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -12942,7 +12942,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + len, gfp); if (!msg) return; @@ -13094,7 +13094,7 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); if (!msg) return; @@ -13136,7 +13136,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); if (!msg) return; @@ -13173,7 +13173,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + msg = nlmsg_new(100 + ie_len, GFP_KERNEL); if (!msg) return; @@ -13249,7 +13249,7 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, trace_cfg80211_notify_new_peer_candidate(dev, addr); - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + ie_len, gfp); if (!msg) return; @@ -13620,7 +13620,7 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, struct sk_buff *msg; void *hdr; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + len, gfp); if (!msg) return -ENOMEM; @@ -13664,7 +13664,7 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, trace_cfg80211_mgmt_tx_status(wdev, cookie, ack); - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + msg = nlmsg_new(100 + len, gfp); if (!msg) return; @@ -14473,7 +14473,7 @@ void cfg80211_ft_event(struct net_device *netdev, if (!ft_event->target_ap) return; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL); if (!msg) return; diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index 0a7e5d992bba..770ababb8f92 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -678,8 +678,7 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) struct sockaddr_x25 *addr = (struct sockaddr_x25 *)uaddr; int len, i, rc = 0; - if (!sock_flag(sk, SOCK_ZAPPED) || - addr_len != sizeof(struct sockaddr_x25) || + if (addr_len != sizeof(struct sockaddr_x25) || addr->sx25_family != AF_X25) { rc = -EINVAL; goto out; @@ -694,9 +693,13 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) } lock_sock(sk); - x25_sk(sk)->source_addr = addr->sx25_addr; - x25_insert_socket(sk); - sock_reset_flag(sk, SOCK_ZAPPED); + if (sock_flag(sk, SOCK_ZAPPED)) { + x25_sk(sk)->source_addr = addr->sx25_addr; + x25_insert_socket(sk); + sock_reset_flag(sk, SOCK_ZAPPED); + } else { + rc = -EINVAL; + } release_sock(sk); SOCK_DEBUG(sk, "x25_bind: socket is bound\n"); out: @@ -812,8 +815,13 @@ static int x25_connect(struct socket *sock, struct sockaddr *uaddr, sock->state = SS_CONNECTED; rc = 0; out_put_neigh: - if (rc) + if (rc) { + read_lock_bh(&x25_list_lock); x25_neigh_put(x25->neighbour); + x25->neighbour = NULL; + read_unlock_bh(&x25_list_lock); + x25->state = X25_STATE_0; + } out_put_route: x25_route_put(rt); out: diff --git a/security/keys/proc.c b/security/keys/proc.c index ec493ddadd11..f2c7e090a66d 100644 --- a/security/keys/proc.c +++ b/security/keys/proc.c @@ -187,7 +187,7 @@ static int proc_keys_show(struct seq_file *m, void *v) struct keyring_search_context ctx = { .index_key = key->index_key, - .cred = current_cred(), + .cred = m->file->f_cred, .match_data.cmp = lookup_user_key_possessed, .match_data.raw_data = key, .match_data.lookup_type = KEYRING_SEARCH_LOOKUP_DIRECT, @@ -207,11 +207,7 @@ static int proc_keys_show(struct seq_file *m, void *v) } } - /* check whether the current task is allowed to view the key (assuming - * non-possession) - * - the caller holds a spinlock, and thus the RCU read lock, making our - * access to __current_cred() safe - */ + /* check whether the current task is allowed to view the key */ rc = key_task_permission(key_ref, ctx.cred, KEY_NEED_VIEW); if (rc < 0) return 0; diff --git a/security/lsm_audit.c b/security/lsm_audit.c index 37f04dadc8d6..44a20c218409 100644 --- a/security/lsm_audit.c +++ b/security/lsm_audit.c @@ -321,6 +321,7 @@ static void dump_common_audit_data(struct audit_buffer *ab, if (a->u.net->sk) { struct sock *sk = a->u.net->sk; struct unix_sock *u; + struct unix_address *addr; int len = 0; char *p = NULL; @@ -351,14 +352,15 @@ static void dump_common_audit_data(struct audit_buffer *ab, #endif case AF_UNIX: u = unix_sk(sk); + addr = smp_load_acquire(&u->addr); + if (!addr) + break; if (u->path.dentry) { audit_log_d_path(ab, " path=", &u->path); break; } - if (!u->addr) - break; - len = u->addr->len-sizeof(short); - p = &u->addr->name->sun_path[0]; + len = addr->len-sizeof(short); + p = &addr->name->sun_path[0]; audit_log_format(ab, " path="); if (*p) audit_log_untrustedstring(ab, p); diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index d293b546a2aa..9bd6f97ccd21 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3265,12 +3265,16 @@ static int selinux_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) { struct inode_security_struct *isec = inode_security_novalidate(inode); + struct superblock_security_struct *sbsec = inode->i_sb->s_security; u32 newsid; int rc; if (strcmp(name, XATTR_SELINUX_SUFFIX)) return -EOPNOTSUPP; + if (!(sbsec->flags & SBLABEL_MNT)) + return -EOPNOTSUPP; + if (!value || !size) return -EACCES; @@ -5984,7 +5988,10 @@ static void selinux_inode_invalidate_secctx(struct inode *inode) */ static int selinux_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) { - return selinux_inode_setsecurity(inode, XATTR_SELINUX_SUFFIX, ctx, ctxlen, 0); + int rc = selinux_inode_setsecurity(inode, XATTR_SELINUX_SUFFIX, + ctx, ctxlen, 0); + /* Do not return error when suppressing label (SBLABEL_MNT not set). */ + return rc == -EOPNOTSUPP ? 0 : rc; } /* diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index cfb8f5896787..824097571467 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -951,6 +951,28 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream) oss_frame_size = snd_pcm_format_physical_width(params_format(params)) * params_channels(params) / 8; + err = snd_pcm_oss_period_size(substream, params, sparams); + if (err < 0) + goto failure; + + n = snd_pcm_plug_slave_size(substream, runtime->oss.period_bytes / oss_frame_size); + err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, n, NULL); + if (err < 0) + goto failure; + + err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIODS, + runtime->oss.periods, NULL); + if (err < 0) + goto failure; + + snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); + + err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_HW_PARAMS, sparams); + if (err < 0) { + pcm_dbg(substream->pcm, "HW_PARAMS failed: %i\n", err); + goto failure; + } + #ifdef CONFIG_SND_PCM_OSS_PLUGINS snd_pcm_oss_plugin_clear(substream); if (!direct) { @@ -985,27 +1007,6 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream) } #endif - err = snd_pcm_oss_period_size(substream, params, sparams); - if (err < 0) - goto failure; - - n = snd_pcm_plug_slave_size(substream, runtime->oss.period_bytes / oss_frame_size); - err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, n, NULL); - if (err < 0) - goto failure; - - err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIODS, - runtime->oss.periods, NULL); - if (err < 0) - goto failure; - - snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); - - if ((err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_HW_PARAMS, sparams)) < 0) { - pcm_dbg(substream->pcm, "HW_PARAMS failed: %i\n", err); - goto failure; - } - if (runtime->oss.trigger) { sw_params->start_threshold = 1; } else { diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 7b5a7418ac25..8922c3c82ade 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1258,8 +1258,15 @@ static int snd_pcm_pause(struct snd_pcm_substream *substream, int push) static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state) { struct snd_pcm_runtime *runtime = substream->runtime; - if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) + switch (runtime->status->state) { + case SNDRV_PCM_STATE_SUSPENDED: + return -EBUSY; + /* unresumable PCM state; return -EBUSY for skipping suspend */ + case SNDRV_PCM_STATE_OPEN: + case SNDRV_PCM_STATE_SETUP: + case SNDRV_PCM_STATE_DISCONNECTED: return -EBUSY; + } runtime->trigger_master = substream; return 0; } @@ -1339,6 +1346,14 @@ int snd_pcm_suspend_all(struct snd_pcm *pcm) /* FIXME: the open/close code should lock this as well */ if (substream->runtime == NULL) continue; + + /* + * Skip BE dai link PCM's that are internal and may + * not have their substream ops set. + */ + if (!substream->ops) + continue; + err = snd_pcm_suspend(substream); if (err < 0 && err != -EBUSY) return err; diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c index 59111cadaec2..c8b2309352d7 100644 --- a/sound/core/rawmidi.c +++ b/sound/core/rawmidi.c @@ -29,6 +29,7 @@ #include <linux/mutex.h> #include <linux/module.h> #include <linux/delay.h> +#include <linux/nospec.h> #include <sound/rawmidi.h> #include <sound/info.h> #include <sound/control.h> @@ -591,6 +592,7 @@ static int __snd_rawmidi_info_select(struct snd_card *card, return -ENXIO; if (info->stream < 0 || info->stream > 1) return -EINVAL; + info->stream = array_index_nospec(info->stream, 2); pstr = &rmidi->streams[info->stream]; if (pstr->substream_count == 0) return -ENOENT; diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c index 278ebb993122..c93945917235 100644 --- a/sound/core/seq/oss/seq_oss_synth.c +++ b/sound/core/seq/oss/seq_oss_synth.c @@ -617,13 +617,14 @@ int snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_info *inf) { struct seq_oss_synth *rec; + struct seq_oss_synthinfo *info = get_synthinfo_nospec(dp, dev); - if (dev < 0 || dev >= dp->max_synthdev) + if (!info) return -ENXIO; - if (dp->synths[dev].is_midi) { + if (info->is_midi) { struct midi_info minf; - snd_seq_oss_midi_make_info(dp, dp->synths[dev].midi_mapped, &minf); + snd_seq_oss_midi_make_info(dp, info->midi_mapped, &minf); inf->synth_type = SYNTH_TYPE_MIDI; inf->synth_subtype = 0; inf->nr_voices = 16; diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index 965473d4129c..09491b27092e 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -1249,7 +1249,7 @@ static int snd_seq_ioctl_set_client_info(struct snd_seq_client *client, /* fill the info fields */ if (client_info->name[0]) - strlcpy(client->name, client_info->name, sizeof(client->name)); + strscpy(client->name, client_info->name, sizeof(client->name)); client->filter = client_info->filter; client->event_lost = client_info->event_lost; @@ -1527,7 +1527,7 @@ static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, void *arg) /* set queue name */ if (!info->name[0]) snprintf(info->name, sizeof(info->name), "Queue-%d", q->queue); - strlcpy(q->name, info->name, sizeof(q->name)); + strscpy(q->name, info->name, sizeof(q->name)); snd_use_lock_free(&q->use_lock); return 0; @@ -1589,7 +1589,7 @@ static int snd_seq_ioctl_set_queue_info(struct snd_seq_client *client, queuefree(q); return -EPERM; } - strlcpy(q->name, info->name, sizeof(q->name)); + strscpy(q->name, info->name, sizeof(q->name)); queuefree(q); return 0; diff --git a/sound/drivers/opl3/opl3_voice.h b/sound/drivers/opl3/opl3_voice.h index a371c075ac87..e26702559f61 100644 --- a/sound/drivers/opl3/opl3_voice.h +++ b/sound/drivers/opl3/opl3_voice.h @@ -41,7 +41,7 @@ void snd_opl3_timer_func(unsigned long data); /* Prototypes for opl3_drums.c */ void snd_opl3_load_drums(struct snd_opl3 *opl3); -void snd_opl3_drum_switch(struct snd_opl3 *opl3, int note, int on_off, int vel, struct snd_midi_channel *chan); +void snd_opl3_drum_switch(struct snd_opl3 *opl3, int note, int vel, int on_off, struct snd_midi_channel *chan); /* Prototypes for opl3_oss.c */ #ifdef CONFIG_SND_SEQUENCER_OSS diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c index 3b4eaffe4a7f..a205b93fd9ac 100644 --- a/sound/firewire/bebob/bebob.c +++ b/sound/firewire/bebob/bebob.c @@ -474,7 +474,19 @@ static const struct ieee1394_device_id bebob_id_table[] = { /* Focusrite, SaffirePro 26 I/O */ SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, 0x00000003, &saffirepro_26_spec), /* Focusrite, SaffirePro 10 I/O */ - SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, 0x00000006, &saffirepro_10_spec), + { + // The combination of vendor_id and model_id is the same as the + // same as the one of Liquid Saffire 56. + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_MODEL_ID | + IEEE1394_MATCH_SPECIFIER_ID | + IEEE1394_MATCH_VERSION, + .vendor_id = VEN_FOCUSRITE, + .model_id = 0x000006, + .specifier_id = 0x00a02d, + .version = 0x010001, + .driver_data = (kernel_ulong_t)&saffirepro_10_spec, + }, /* Focusrite, Saffire(no label and LE) */ SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, MODEL_FOCUSRITE_SAFFIRE_BOTH, &saffire_spec), diff --git a/sound/isa/sb/sb8.c b/sound/isa/sb/sb8.c index ad42d2364199..e75bfc511e3e 100644 --- a/sound/isa/sb/sb8.c +++ b/sound/isa/sb/sb8.c @@ -111,6 +111,10 @@ static int snd_sb8_probe(struct device *pdev, unsigned int dev) /* block the 0x388 port to avoid PnP conflicts */ acard->fm_res = request_region(0x388, 4, "SoundBlaster FM"); + if (!acard->fm_res) { + err = -EBUSY; + goto _err; + } if (port[dev] != SNDRV_AUTO_PORT) { if ((err = snd_sbdsp_create(card, port[dev], irq[dev], diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c index 286f5e3686a3..d73ee11a32bd 100644 --- a/sound/pci/echoaudio/echoaudio.c +++ b/sound/pci/echoaudio/echoaudio.c @@ -1953,6 +1953,11 @@ static int snd_echo_create(struct snd_card *card, } chip->dsp_registers = (volatile u32 __iomem *) ioremap_nocache(chip->dsp_registers_phys, sz); + if (!chip->dsp_registers) { + dev_err(chip->card->dev, "ioremap failed\n"); + snd_echo_free(chip); + return -ENOMEM; + } if (request_irq(pci->irq, snd_echo_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index c6b046ddefdd..1b5e217d1bb2 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -3004,6 +3004,7 @@ static void hda_call_codec_resume(struct hda_codec *codec) hda_jackpoll_work(&codec->jackpoll_work.work); else snd_hda_jack_report_sync(codec); + codec->core.dev.power.power_state = PMSG_ON; atomic_dec(&codec->core.in_pm); } @@ -3036,10 +3037,62 @@ static int hda_codec_runtime_resume(struct device *dev) } #endif /* CONFIG_PM */ +#ifdef CONFIG_PM_SLEEP +static int hda_codec_force_resume(struct device *dev) +{ + int ret; + + /* The get/put pair below enforces the runtime resume even if the + * device hasn't been used at suspend time. This trick is needed to + * update the jack state change during the sleep. + */ + pm_runtime_get_noresume(dev); + ret = pm_runtime_force_resume(dev); + pm_runtime_put(dev); + return ret; +} + +static int hda_codec_pm_suspend(struct device *dev) +{ + dev->power.power_state = PMSG_SUSPEND; + return pm_runtime_force_suspend(dev); +} + +static int hda_codec_pm_resume(struct device *dev) +{ + dev->power.power_state = PMSG_RESUME; + return hda_codec_force_resume(dev); +} + +static int hda_codec_pm_freeze(struct device *dev) +{ + dev->power.power_state = PMSG_FREEZE; + return pm_runtime_force_suspend(dev); +} + +static int hda_codec_pm_thaw(struct device *dev) +{ + dev->power.power_state = PMSG_THAW; + return hda_codec_force_resume(dev); +} + +static int hda_codec_pm_restore(struct device *dev) +{ + dev->power.power_state = PMSG_RESTORE; + return hda_codec_force_resume(dev); +} +#endif /* CONFIG_PM_SLEEP */ + /* referred in hda_bind.c */ const struct dev_pm_ops hda_codec_driver_pm = { - SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, - pm_runtime_force_resume) +#ifdef CONFIG_PM_SLEEP + .suspend = hda_codec_pm_suspend, + .resume = hda_codec_pm_resume, + .freeze = hda_codec_pm_freeze, + .thaw = hda_codec_pm_thaw, + .poweroff = hda_codec_pm_suspend, + .restore = hda_codec_pm_restore, +#endif /* CONFIG_PM_SLEEP */ SET_RUNTIME_PM_OPS(hda_codec_runtime_suspend, hda_codec_runtime_resume, NULL) }; diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c index dffd549a0e2a..705d2524ec31 100644 --- a/sound/soc/fsl/fsl-asoc-card.c +++ b/sound/soc/fsl/fsl-asoc-card.c @@ -689,6 +689,7 @@ static int fsl_asoc_card_probe(struct platform_device *pdev) asrc_fail: of_node_put(asrc_np); of_node_put(codec_np); + put_device(&cpu_pdev->dev); fail: of_node_put(cpu_np); diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c index 3ef174531344..fa64cc2b1729 100644 --- a/sound/soc/fsl/fsl_esai.c +++ b/sound/soc/fsl/fsl_esai.c @@ -59,6 +59,8 @@ struct fsl_esai { u32 fifo_depth; u32 slot_width; u32 slots; + u32 tx_mask; + u32 rx_mask; u32 hck_rate[2]; u32 sck_rate[2]; bool hck_dir[2]; @@ -359,21 +361,13 @@ static int fsl_esai_set_dai_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask, regmap_update_bits(esai_priv->regmap, REG_ESAI_TCCR, ESAI_xCCR_xDC_MASK, ESAI_xCCR_xDC(slots)); - regmap_update_bits(esai_priv->regmap, REG_ESAI_TSMA, - ESAI_xSMA_xS_MASK, ESAI_xSMA_xS(tx_mask)); - regmap_update_bits(esai_priv->regmap, REG_ESAI_TSMB, - ESAI_xSMB_xS_MASK, ESAI_xSMB_xS(tx_mask)); - regmap_update_bits(esai_priv->regmap, REG_ESAI_RCCR, ESAI_xCCR_xDC_MASK, ESAI_xCCR_xDC(slots)); - regmap_update_bits(esai_priv->regmap, REG_ESAI_RSMA, - ESAI_xSMA_xS_MASK, ESAI_xSMA_xS(rx_mask)); - regmap_update_bits(esai_priv->regmap, REG_ESAI_RSMB, - ESAI_xSMB_xS_MASK, ESAI_xSMB_xS(rx_mask)); - esai_priv->slot_width = slot_width; esai_priv->slots = slots; + esai_priv->tx_mask = tx_mask; + esai_priv->rx_mask = rx_mask; return 0; } @@ -396,7 +390,8 @@ static int fsl_esai_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) break; case SND_SOC_DAIFMT_RIGHT_J: /* Data on rising edge of bclk, frame high, right aligned */ - xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP | ESAI_xCR_xWA; + xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP; + xcr |= ESAI_xCR_xWA; break; case SND_SOC_DAIFMT_DSP_A: /* Data on rising edge of bclk, frame high, 1clk before data */ @@ -453,12 +448,12 @@ static int fsl_esai_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) return -EINVAL; } - mask = ESAI_xCR_xFSL | ESAI_xCR_xFSR; + mask = ESAI_xCR_xFSL | ESAI_xCR_xFSR | ESAI_xCR_xWA; regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR, mask, xcr); regmap_update_bits(esai_priv->regmap, REG_ESAI_RCR, mask, xcr); mask = ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP | ESAI_xCCR_xFSP | - ESAI_xCCR_xFSD | ESAI_xCCR_xCKD | ESAI_xCR_xWA; + ESAI_xCCR_xFSD | ESAI_xCCR_xCKD; regmap_update_bits(esai_priv->regmap, REG_ESAI_TCCR, mask, xccr); regmap_update_bits(esai_priv->regmap, REG_ESAI_RCCR, mask, xccr); @@ -593,6 +588,7 @@ static int fsl_esai_trigger(struct snd_pcm_substream *substream, int cmd, bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; u8 i, channels = substream->runtime->channels; u32 pins = DIV_ROUND_UP(channels, esai_priv->slots); + u32 mask; switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -605,15 +601,38 @@ static int fsl_esai_trigger(struct snd_pcm_substream *substream, int cmd, for (i = 0; tx && i < channels; i++) regmap_write(esai_priv->regmap, REG_ESAI_ETDR, 0x0); + /* + * When set the TE/RE in the end of enablement flow, there + * will be channel swap issue for multi data line case. + * In order to workaround this issue, we switch the bit + * enablement sequence to below sequence + * 1) clear the xSMB & xSMA: which is done in probe and + * stop state. + * 2) set TE/RE + * 3) set xSMB + * 4) set xSMA: xSMA is the last one in this flow, which + * will trigger esai to start. + */ regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx), tx ? ESAI_xCR_TE_MASK : ESAI_xCR_RE_MASK, tx ? ESAI_xCR_TE(pins) : ESAI_xCR_RE(pins)); + mask = tx ? esai_priv->tx_mask : esai_priv->rx_mask; + + regmap_update_bits(esai_priv->regmap, REG_ESAI_xSMB(tx), + ESAI_xSMB_xS_MASK, ESAI_xSMB_xS(mask)); + regmap_update_bits(esai_priv->regmap, REG_ESAI_xSMA(tx), + ESAI_xSMA_xS_MASK, ESAI_xSMA_xS(mask)); + break; case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx), tx ? ESAI_xCR_TE_MASK : ESAI_xCR_RE_MASK, 0); + regmap_update_bits(esai_priv->regmap, REG_ESAI_xSMA(tx), + ESAI_xSMA_xS_MASK, 0); + regmap_update_bits(esai_priv->regmap, REG_ESAI_xSMB(tx), + ESAI_xSMB_xS_MASK, 0); /* Disable and reset FIFO */ regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx), @@ -903,6 +922,15 @@ static int fsl_esai_probe(struct platform_device *pdev) return ret; } + esai_priv->tx_mask = 0xFFFFFFFF; + esai_priv->rx_mask = 0xFFFFFFFF; + + /* Clear the TSMA, TSMB, RSMA, RSMB */ + regmap_write(esai_priv->regmap, REG_ESAI_TSMA, 0); + regmap_write(esai_priv->regmap, REG_ESAI_TSMB, 0); + regmap_write(esai_priv->regmap, REG_ESAI_RSMA, 0); + regmap_write(esai_priv->regmap, REG_ESAI_RSMB, 0); + ret = devm_snd_soc_register_component(&pdev->dev, &fsl_esai_component, &fsl_esai_dai, 1); if (ret) { diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c index b99e0b5e00e9..8e525f7ac08d 100644 --- a/sound/soc/fsl/imx-sgtl5000.c +++ b/sound/soc/fsl/imx-sgtl5000.c @@ -115,6 +115,7 @@ static int imx_sgtl5000_probe(struct platform_device *pdev) ret = -EPROBE_DEFER; goto fail; } + put_device(&ssi_pdev->dev); codec_dev = of_find_i2c_device_by_node(codec_np); if (!codec_dev) { dev_err(&pdev->dev, "failed to find codec platform device\n"); diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index d6b48c796bfc..086fe4d27f60 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -1989,6 +1989,7 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp, struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id) { struct soc_tplg tplg; + int ret; /* setup parsing context */ memset(&tplg, 0, sizeof(tplg)); @@ -2002,7 +2003,12 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp, tplg.bytes_ext_ops = ops->bytes_ext_ops; tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; - return soc_tplg_load(&tplg); + ret = soc_tplg_load(&tplg); + /* free the created components if fail to load topology */ + if (ret) + snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL); + + return ret; } EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 669475300ba8..700c74b0aed0 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -2428,7 +2428,7 @@ static int arg_num_eval(struct print_arg *arg, long long *val) static char *arg_eval (struct print_arg *arg) { long long val; - static char buf[20]; + static char buf[24]; switch (arg->type) { case PRINT_ATOM: diff --git a/tools/objtool/check.c b/tools/objtool/check.c index e128d1c71c30..3ff025b64527 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -2132,9 +2132,10 @@ static void cleanup(struct objtool_file *file) elf_close(file->elf); } +static struct objtool_file file; + int check(const char *_objname, bool orc) { - struct objtool_file file; int ret, warnings = 0; objname = _objname; diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index cb081ac59fd1..bd359a04cb94 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -112,7 +112,7 @@ Given a $HOME/.perfconfig like this: [report] # Defaults - sort-order = comm,dso,symbol + sort_order = comm,dso,symbol percent-limit = 0 queue-size = 0 children = true diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index e68c866ae798..cd2900ac473f 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1323,8 +1323,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) goto out_delete_evlist; symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); - if (symbol__init(NULL) < 0) - return -1; + status = symbol__init(NULL); + if (status < 0) + goto out_delete_evlist; sort__setup_elide(stdout); diff --git a/tools/perf/tests/evsel-tp-sched.c b/tools/perf/tests/evsel-tp-sched.c index 66b53f10eb18..b5d0be524655 100644 --- a/tools/perf/tests/evsel-tp-sched.c +++ b/tools/perf/tests/evsel-tp-sched.c @@ -42,7 +42,7 @@ int test__perf_evsel__tp_sched_test(int subtest __maybe_unused) return -1; } - if (perf_evsel__test_field(evsel, "prev_comm", 16, true)) + if (perf_evsel__test_field(evsel, "prev_comm", 16, false)) ret = -1; if (perf_evsel__test_field(evsel, "prev_pid", 4, true)) @@ -54,7 +54,7 @@ int test__perf_evsel__tp_sched_test(int subtest __maybe_unused) if (perf_evsel__test_field(evsel, "prev_state", sizeof(long), true)) ret = -1; - if (perf_evsel__test_field(evsel, "next_comm", 16, true)) + if (perf_evsel__test_field(evsel, "next_comm", 16, false)) ret = -1; if (perf_evsel__test_field(evsel, "next_pid", 4, true)) @@ -72,7 +72,7 @@ int test__perf_evsel__tp_sched_test(int subtest __maybe_unused) return -1; } - if (perf_evsel__test_field(evsel, "comm", 16, true)) + if (perf_evsel__test_field(evsel, "comm", 16, false)) ret = -1; if (perf_evsel__test_field(evsel, "pid", 4, true)) @@ -84,5 +84,6 @@ int test__perf_evsel__tp_sched_test(int subtest __maybe_unused) if (perf_evsel__test_field(evsel, "target_cpu", 4, true)) ret = -1; + perf_evsel__delete(evsel); return ret; } diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c index c8d9592eb142..75d504e9eeaf 100644 --- a/tools/perf/tests/openat-syscall-all-cpus.c +++ b/tools/perf/tests/openat-syscall-all-cpus.c @@ -38,7 +38,7 @@ int test__openat_syscall_event_on_all_cpus(int subtest __maybe_unused) if (IS_ERR(evsel)) { tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat"); pr_debug("%s\n", errbuf); - goto out_thread_map_delete; + goto out_cpu_map_delete; } if (perf_evsel__open(evsel, cpus, threads) < 0) { @@ -112,6 +112,8 @@ out_close_fd: perf_evsel__close_fd(evsel, 1, threads->nr); out_evsel_delete: perf_evsel__delete(evsel); +out_cpu_map_delete: + cpu_map__put(cpus); out_thread_map_delete: thread_map__put(threads); return err; diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 29d015e2d900..b87221efdf7e 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -1244,9 +1244,9 @@ static int __auxtrace_mmap__read(struct auxtrace_mmap *mm, } /* padding must be written by fn() e.g. record__process_auxtrace() */ - padding = size & 7; + padding = size & (PERF_AUXTRACE_RECORD_ALIGNMENT - 1); if (padding) - padding = 8 - padding; + padding = PERF_AUXTRACE_RECORD_ALIGNMENT - padding; memset(&ev, 0, sizeof(ev)); ev.auxtrace.header.type = PERF_RECORD_AUXTRACE; diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index 26fb1ee5746a..1b6963e09934 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -37,6 +37,9 @@ struct record_opts; struct auxtrace_info_event; struct events_stats; +/* Auxtrace records must have the same alignment as perf event records */ +#define PERF_AUXTRACE_RECORD_ALIGNMENT 8 + enum auxtrace_type { PERF_AUXTRACE_UNKNOWN, PERF_AUXTRACE_INTEL_PT, diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index 993ef2762508..32aab95e1459 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -176,6 +176,7 @@ char *build_id_cache__linkname(const char *sbuild_id, char *bf, size_t size) return bf; } +/* The caller is responsible to free the returned buffer. */ char *build_id_cache__origname(const char *sbuild_id) { char *linkname; diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index 18dae745034f..1d66f8eab9f9 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -595,11 +595,10 @@ static int collect_config(const char *var, const char *value, } ret = set_value(item, value); - return ret; out_free: free(key); - return -1; + return ret; } static int perf_config_set__init(struct perf_config_set *set) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index f7128c2a6386..a62f79558146 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1167,6 +1167,7 @@ void perf_evsel__exit(struct perf_evsel *evsel) { assert(list_empty(&evsel->node)); assert(evsel->evlist == NULL); + perf_evsel__free_counts(evsel); perf_evsel__free_fd(evsel); perf_evsel__free_id(evsel); perf_evsel__free_config_terms(evsel); diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index ad613ea51434..82833ceba339 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -1027,8 +1027,10 @@ int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al, err = sample__resolve_callchain(iter->sample, &callchain_cursor, &iter->parent, iter->evsel, al, max_stack_depth); - if (err) + if (err) { + map__put(alm); return err; + } err = iter->ops->prepare_entry(iter, al); if (err) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index d27715ff9a5f..3c1372655c33 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -26,6 +26,7 @@ #include "../cache.h" #include "../util.h" +#include "../auxtrace.h" #include "intel-pt-insn-decoder.h" #include "intel-pt-pkt-decoder.h" @@ -239,19 +240,15 @@ struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params) if (!(decoder->tsc_ctc_ratio_n % decoder->tsc_ctc_ratio_d)) decoder->tsc_ctc_mult = decoder->tsc_ctc_ratio_n / decoder->tsc_ctc_ratio_d; - - /* - * Allow for timestamps appearing to backwards because a TSC - * packet has slipped past a MTC packet, so allow 2 MTC ticks - * or ... - */ - decoder->tsc_slip = multdiv(2 << decoder->mtc_shift, - decoder->tsc_ctc_ratio_n, - decoder->tsc_ctc_ratio_d); } - /* ... or 0x100 paranoia */ - if (decoder->tsc_slip < 0x100) - decoder->tsc_slip = 0x100; + + /* + * A TSC packet can slip past MTC packets so that the timestamp appears + * to go backwards. One estimate is that can be up to about 40 CPU + * cycles, which is certainly less than 0x1000 TSC ticks, but accept + * slippage an order of magnitude more to be on the safe side. + */ + decoder->tsc_slip = 0x10000; intel_pt_log("timestamp: mtc_shift %u\n", decoder->mtc_shift); intel_pt_log("timestamp: tsc_ctc_ratio_n %u\n", decoder->tsc_ctc_ratio_n); @@ -1311,7 +1308,6 @@ static int intel_pt_overflow(struct intel_pt_decoder *decoder) { intel_pt_log("ERROR: Buffer overflow\n"); intel_pt_clear_tx_flags(decoder); - decoder->cbr = 0; decoder->timestamp_insn_cnt = 0; decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC; decoder->overflow = true; @@ -2351,6 +2347,34 @@ static int intel_pt_tsc_cmp(uint64_t tsc1, uint64_t tsc2) } } +#define MAX_PADDING (PERF_AUXTRACE_RECORD_ALIGNMENT - 1) + +/** + * adj_for_padding - adjust overlap to account for padding. + * @buf_b: second buffer + * @buf_a: first buffer + * @len_a: size of first buffer + * + * @buf_a might have up to 7 bytes of padding appended. Adjust the overlap + * accordingly. + * + * Return: A pointer into @buf_b from where non-overlapped data starts + */ +static unsigned char *adj_for_padding(unsigned char *buf_b, + unsigned char *buf_a, size_t len_a) +{ + unsigned char *p = buf_b - MAX_PADDING; + unsigned char *q = buf_a + len_a - MAX_PADDING; + int i; + + for (i = MAX_PADDING; i; i--, p++, q++) { + if (*p != *q) + break; + } + + return p; +} + /** * intel_pt_find_overlap_tsc - determine start of non-overlapped trace data * using TSC. @@ -2401,8 +2425,11 @@ static unsigned char *intel_pt_find_overlap_tsc(unsigned char *buf_a, /* Same TSC, so buffers are consecutive */ if (!cmp && rem_b >= rem_a) { + unsigned char *start; + *consecutive = true; - return buf_b + len_b - (rem_b - rem_a); + start = buf_b + len_b - (rem_b - rem_a); + return adj_for_padding(start, buf_a, len_a); } if (cmp < 0) return buf_b; /* tsc_a < tsc_b => no overlap */ @@ -2465,7 +2492,7 @@ unsigned char *intel_pt_find_overlap(unsigned char *buf_a, size_t len_a, found = memmem(buf_a, len_a, buf_b, len_a); if (found) { *consecutive = true; - return buf_b + len_a; + return adj_for_padding(buf_b + len_a, buf_a, len_a); } /* Try again at next PSB in buffer 'a' */ diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index d40ab4cf8932..24c6621e2d95 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -2259,6 +2259,8 @@ int intel_pt_process_auxtrace_info(union perf_event *event, } pt->timeless_decoding = intel_pt_timeless_decoding(pt); + if (pt->timeless_decoding && !pt->tc.time_mult) + pt->tc.time_mult = 1; pt->have_tsc = intel_pt_have_tsc(pt); pt->sampling_mode = false; pt->est_tsc = !pt->timeless_decoding; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 14f111a10650..6193be6d7639 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -2104,6 +2104,7 @@ void print_sdt_events(const char *subsys_glob, const char *event_glob, printf(" %-50s [%s]\n", buf, "SDT event"); free(buf); } + free(path); } else printf(" %-50s [%s]\n", nd->s, "SDT event"); if (nd2) { diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 5ec2de8f49b4..b4c5d96e54c1 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -3691,6 +3691,9 @@ int fork_it(char **argv) signal(SIGQUIT, SIG_IGN); if (waitpid(child_pid, &status, 0) == -1) err(status, "waitpid"); + + if (WIFEXITED(status)) + status = WEXITSTATUS(status); } /* * n.b. fork_it() does not check for errors from for_all_cpus() diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 60de4c337f0a..c72586a094ed 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2793,6 +2793,9 @@ static long kvm_device_ioctl(struct file *filp, unsigned int ioctl, { struct kvm_device *dev = filp->private_data; + if (dev->kvm->mm != current->mm) + return -EIO; + switch (ioctl) { case KVM_SET_DEVICE_ATTR: return kvm_device_ioctl_attr(dev, dev->ops->set_attr, arg); |