diff options
204 files changed, 1757 insertions, 843 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index af7104aaffd9..a626465dd877 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -713,9 +713,6 @@ It will be ignored when crashkernel=X,high is not used or memory reserved is below 4G. - crossrelease_fullstack - [KNL] Allow to record full stack trace in cross-release - cryptomgr.notests [KNL] Disable crypto self-tests diff --git a/Documentation/networking/index.rst b/Documentation/networking/index.rst index 66e620866245..7d4b15977d61 100644 --- a/Documentation/networking/index.rst +++ b/Documentation/networking/index.rst @@ -9,6 +9,7 @@ Contents: batman-adv kapi z8530book + msg_zerocopy .. only:: subproject @@ -16,4 +17,3 @@ Contents: ======= * :ref:`genindex` - diff --git a/Documentation/networking/msg_zerocopy.rst b/Documentation/networking/msg_zerocopy.rst index 77f6d7e25cfd..291a01264967 100644 --- a/Documentation/networking/msg_zerocopy.rst +++ b/Documentation/networking/msg_zerocopy.rst @@ -72,6 +72,10 @@ this flag, a process must first signal intent by setting a socket option: if (setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY, &one, sizeof(one))) error(1, errno, "setsockopt zerocopy"); +Setting the socket option only works when the socket is in its initial +(TCP_CLOSED) state. Trying to set the option for a socket returned by accept(), +for example, will lead to an EBUSY error. In this case, the option should be set +to the listening socket and it will be inherited by the accepted sockets. Transmission ------------ diff --git a/MAINTAINERS b/MAINTAINERS index 95c3fa1f520f..d76af75a653a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10134,7 +10134,7 @@ F: drivers/irqchip/irq-ompic.c F: drivers/irqchip/irq-or1k-* OPENVSWITCH -M: Pravin Shelar <pshelar@nicira.com> +M: Pravin B Shelar <pshelar@ovn.org> L: netdev@vger.kernel.org L: dev@openvswitch.org W: http://openvswitch.org @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 15 SUBLEVEL = 0 -EXTRAVERSION = -rc6 +EXTRAVERSION = -rc7 NAME = Fearless Coyote # *DOCUMENTATION* diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi index 4e6e9f57e790..dc91c663bcc0 100644 --- a/arch/arc/boot/dts/axc003.dtsi +++ b/arch/arc/boot/dts/axc003.dtsi @@ -35,6 +35,14 @@ reg = <0x80 0x10>, <0x100 0x10>; #clock-cells = <0>; clocks = <&input_clk>; + + /* + * Set initial core pll output frequency to 90MHz. + * It will be applied at the core pll driver probing + * on early boot. + */ + assigned-clocks = <&core_clk>; + assigned-clock-rates = <90000000>; }; core_intc: archs-intc@cpu { diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi index 63954a8b0100..69ff4895f2ba 100644 --- a/arch/arc/boot/dts/axc003_idu.dtsi +++ b/arch/arc/boot/dts/axc003_idu.dtsi @@ -35,6 +35,14 @@ reg = <0x80 0x10>, <0x100 0x10>; #clock-cells = <0>; clocks = <&input_clk>; + + /* + * Set initial core pll output frequency to 100MHz. + * It will be applied at the core pll driver probing + * on early boot. + */ + assigned-clocks = <&core_clk>; + assigned-clock-rates = <100000000>; }; core_intc: archs-intc@cpu { diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index 8f627c200d60..006aa3de5348 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -114,6 +114,14 @@ reg = <0x00 0x10>, <0x14B8 0x4>; #clock-cells = <0>; clocks = <&input_clk>; + + /* + * Set initial core pll output frequency to 1GHz. + * It will be applied at the core pll driver probing + * on early boot. + */ + assigned-clocks = <&core_clk>; + assigned-clock-rates = <1000000000>; }; serial: serial@5000 { diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig index 7b8f8faf8a24..ac6b0ed8341e 100644 --- a/arch/arc/configs/hsdk_defconfig +++ b/arch/arc/configs/hsdk_defconfig @@ -49,10 +49,11 @@ CONFIG_SERIAL_8250_DW=y CONFIG_SERIAL_OF_PLATFORM=y # CONFIG_HW_RANDOM is not set # CONFIG_HWMON is not set +CONFIG_DRM=y +# CONFIG_DRM_FBDEV_EMULATION is not set +CONFIG_DRM_UDL=y CONFIG_FB=y -CONFIG_FB_UDL=y CONFIG_FRAMEBUFFER_CONSOLE=y -CONFIG_USB=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_HCD_PLATFORM=y CONFIG_USB_OHCI_HCD=y diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h index f35974ee7264..c9173c02081c 100644 --- a/arch/arc/include/asm/uaccess.h +++ b/arch/arc/include/asm/uaccess.h @@ -668,6 +668,7 @@ __arc_strncpy_from_user(char *dst, const char __user *src, long count) return 0; __asm__ __volatile__( + " mov lp_count, %5 \n" " lp 3f \n" "1: ldb.ab %3, [%2, 1] \n" " breq.d %3, 0, 3f \n" @@ -684,8 +685,8 @@ __arc_strncpy_from_user(char *dst, const char __user *src, long count) " .word 1b, 4b \n" " .previous \n" : "+r"(res), "+r"(dst), "+r"(src), "=r"(val) - : "g"(-EFAULT), "l"(count) - : "memory"); + : "g"(-EFAULT), "r"(count) + : "lp_count", "lp_start", "lp_end", "memory"); return res; } diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 7ef7d9a8ff89..9d27331fe69a 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -199,7 +199,7 @@ static void read_arc_build_cfg_regs(void) unsigned int exec_ctrl; READ_BCR(AUX_EXEC_CTRL, exec_ctrl); - cpu->extn.dual_enb = exec_ctrl & 1; + cpu->extn.dual_enb = !(exec_ctrl & 1); /* dual issue always present for this core */ cpu->extn.dual = 1; diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index 74315f302971..bf40e06f3fb8 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -163,7 +163,7 @@ arc_unwind_core(struct task_struct *tsk, struct pt_regs *regs, */ static int __print_sym(unsigned int address, void *unused) { - __print_symbol(" %s\n", address); + printk(" %pS\n", (void *)address); return 0; } diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c index bcd7c9fc5d0f..133a4dae41fe 100644 --- a/arch/arc/kernel/traps.c +++ b/arch/arc/kernel/traps.c @@ -83,6 +83,7 @@ DO_ERROR_INFO(SIGILL, "Illegal Insn (or Seq)", insterror_is_error, ILL_ILLOPC) DO_ERROR_INFO(SIGBUS, "Invalid Mem Access", __weak do_memory_error, BUS_ADRERR) DO_ERROR_INFO(SIGTRAP, "Breakpoint Set", trap_is_brkpt, TRAP_BRKPT) DO_ERROR_INFO(SIGBUS, "Misaligned Access", do_misaligned_error, BUS_ADRALN) +DO_ERROR_INFO(SIGSEGV, "gcc generated __builtin_trap", do_trap5_error, 0) /* * Entry Point for Misaligned Data access Exception, for emulating in software @@ -115,6 +116,8 @@ void do_machine_check_fault(unsigned long address, struct pt_regs *regs) * Thus TRAP_S <n> can be used for specific purpose * -1 used for software breakpointing (gdb) * -2 used by kprobes + * -5 __builtin_trap() generated by gcc (2018.03 onwards) for toggle such as + * -fno-isolate-erroneous-paths-dereference */ void do_non_swi_trap(unsigned long address, struct pt_regs *regs) { @@ -134,6 +137,9 @@ void do_non_swi_trap(unsigned long address, struct pt_regs *regs) kgdb_trap(regs); break; + case 5: + do_trap5_error(address, regs); + break; default: break; } @@ -155,3 +161,11 @@ void do_insterror_or_kprobe(unsigned long address, struct pt_regs *regs) insterror_is_error(address, regs); } + +/* + * abort() call generated by older gcc for __builtin_trap() + */ +void abort(void) +{ + __asm__ __volatile__("trap_s 5\n"); +} diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c index 7d8c1d6c2f60..6e9a0a9a6a04 100644 --- a/arch/arc/kernel/troubleshoot.c +++ b/arch/arc/kernel/troubleshoot.c @@ -163,6 +163,9 @@ static void show_ecr_verbose(struct pt_regs *regs) else pr_cont("Bus Error, check PRM\n"); #endif + } else if (vec == ECR_V_TRAP) { + if (regs->ecr_param == 5) + pr_cont("gcc generated __builtin_trap\n"); } else { pr_cont("Check Programmer's Manual\n"); } diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c index f1ac6790da5f..46544e88492d 100644 --- a/arch/arc/plat-axs10x/axs10x.c +++ b/arch/arc/plat-axs10x/axs10x.c @@ -317,25 +317,23 @@ static void __init axs103_early_init(void) * Instead of duplicating defconfig/DT for SMP/QUAD, add a small hack * of fudging the freq in DT */ +#define AXS103_QUAD_CORE_CPU_FREQ_HZ 50000000 + unsigned int num_cores = (read_aux_reg(ARC_REG_MCIP_BCR) >> 16) & 0x3F; if (num_cores > 2) { - u32 freq = 50, orig; - /* - * TODO: use cpu node "cpu-freq" param instead of platform-specific - * "/cpu_card/core_clk" as it works only if we use fixed-clock for cpu. - */ + u32 freq; int off = fdt_path_offset(initial_boot_params, "/cpu_card/core_clk"); const struct fdt_property *prop; prop = fdt_get_property(initial_boot_params, off, - "clock-frequency", NULL); - orig = be32_to_cpu(*(u32*)(prop->data)) / 1000000; + "assigned-clock-rates", NULL); + freq = be32_to_cpu(*(u32 *)(prop->data)); /* Patching .dtb in-place with new core clock value */ - if (freq != orig ) { - freq = cpu_to_be32(freq * 1000000); + if (freq != AXS103_QUAD_CORE_CPU_FREQ_HZ) { + freq = cpu_to_be32(AXS103_QUAD_CORE_CPU_FREQ_HZ); fdt_setprop_inplace(initial_boot_params, off, - "clock-frequency", &freq, sizeof(freq)); + "assigned-clock-rates", &freq, sizeof(freq)); } } #endif diff --git a/arch/arc/plat-hsdk/platform.c b/arch/arc/plat-hsdk/platform.c index fd0ae5e38639..2958aedb649a 100644 --- a/arch/arc/plat-hsdk/platform.c +++ b/arch/arc/plat-hsdk/platform.c @@ -38,42 +38,6 @@ static void __init hsdk_init_per_cpu(unsigned int cpu) #define CREG_PAE (CREG_BASE + 0x180) #define CREG_PAE_UPDATE (CREG_BASE + 0x194) -#define CREG_CORE_IF_CLK_DIV (CREG_BASE + 0x4B8) -#define CREG_CORE_IF_CLK_DIV_2 0x1 -#define CGU_BASE ARC_PERIPHERAL_BASE -#define CGU_PLL_STATUS (ARC_PERIPHERAL_BASE + 0x4) -#define CGU_PLL_CTRL (ARC_PERIPHERAL_BASE + 0x0) -#define CGU_PLL_STATUS_LOCK BIT(0) -#define CGU_PLL_STATUS_ERR BIT(1) -#define CGU_PLL_CTRL_1GHZ 0x3A10 -#define HSDK_PLL_LOCK_TIMEOUT 500 - -#define HSDK_PLL_LOCKED() \ - !!(ioread32((void __iomem *) CGU_PLL_STATUS) & CGU_PLL_STATUS_LOCK) - -#define HSDK_PLL_ERR() \ - !!(ioread32((void __iomem *) CGU_PLL_STATUS) & CGU_PLL_STATUS_ERR) - -static void __init hsdk_set_cpu_freq_1ghz(void) -{ - u32 timeout = HSDK_PLL_LOCK_TIMEOUT; - - /* - * As we set cpu clock which exceeds 500MHz, the divider for the interface - * clock must be programmed to div-by-2. - */ - iowrite32(CREG_CORE_IF_CLK_DIV_2, (void __iomem *) CREG_CORE_IF_CLK_DIV); - - /* Set cpu clock to 1GHz */ - iowrite32(CGU_PLL_CTRL_1GHZ, (void __iomem *) CGU_PLL_CTRL); - - while (!HSDK_PLL_LOCKED() && timeout--) - cpu_relax(); - - if (!HSDK_PLL_LOCKED() || HSDK_PLL_ERR()) - pr_err("Failed to setup CPU frequency to 1GHz!"); -} - #define SDIO_BASE (ARC_PERIPHERAL_BASE + 0xA000) #define SDIO_UHS_REG_EXT (SDIO_BASE + 0x108) #define SDIO_UHS_REG_EXT_DIV_2 (2 << 30) @@ -98,12 +62,6 @@ static void __init hsdk_init_early(void) * minimum possible div-by-2. */ iowrite32(SDIO_UHS_REG_EXT_DIV_2, (void __iomem *) SDIO_UHS_REG_EXT); - - /* - * Setup CPU frequency to 1GHz. - * TODO: remove it after smart hsdk pll driver will be introduced. - */ - hsdk_set_cpu_freq_1ghz(); } static const char *hsdk_compat[] __initconst = { diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S index c7ed26029cbb..e68e6e04063a 100644 --- a/arch/mips/kernel/cps-vec.S +++ b/arch/mips/kernel/cps-vec.S @@ -235,6 +235,7 @@ LEAF(mips_cps_core_init) has_mt t0, 3f .set push + .set MIPS_ISA_LEVEL_RAW .set mt /* Only allow 1 TC per VPE to execute... */ @@ -388,6 +389,7 @@ LEAF(mips_cps_boot_vpes) #elif defined(CONFIG_MIPS_MT) .set push + .set MIPS_ISA_LEVEL_RAW .set mt /* If the core doesn't support MT then return */ diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 45d0b6b037ee..57028d49c202 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -705,6 +705,18 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value) struct task_struct *t; int max_users; + /* If nothing to change, return right away, successfully. */ + if (value == mips_get_process_fp_mode(task)) + return 0; + + /* Only accept a mode change if 64-bit FP enabled for o32. */ + if (!IS_ENABLED(CONFIG_MIPS_O32_FP64_SUPPORT)) + return -EOPNOTSUPP; + + /* And only for o32 tasks. */ + if (IS_ENABLED(CONFIG_64BIT) && !test_thread_flag(TIF_32BIT_REGS)) + return -EOPNOTSUPP; + /* Check the value is valid */ if (value & ~known_bits) return -EOPNOTSUPP; diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index efbd8df8b665..0b23b1ad99e6 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -419,63 +419,160 @@ static int gpr64_set(struct task_struct *target, #endif /* CONFIG_64BIT */ +/* + * Copy the floating-point context to the supplied NT_PRFPREG buffer, + * !CONFIG_CPU_HAS_MSA variant. FP context's general register slots + * correspond 1:1 to buffer slots. Only general registers are copied. + */ +static int fpr_get_fpa(struct task_struct *target, + unsigned int *pos, unsigned int *count, + void **kbuf, void __user **ubuf) +{ + return user_regset_copyout(pos, count, kbuf, ubuf, + &target->thread.fpu, + 0, NUM_FPU_REGS * sizeof(elf_fpreg_t)); +} + +/* + * Copy the floating-point context to the supplied NT_PRFPREG buffer, + * CONFIG_CPU_HAS_MSA variant. Only lower 64 bits of FP context's + * general register slots are copied to buffer slots. Only general + * registers are copied. + */ +static int fpr_get_msa(struct task_struct *target, + unsigned int *pos, unsigned int *count, + void **kbuf, void __user **ubuf) +{ + unsigned int i; + u64 fpr_val; + int err; + + BUILD_BUG_ON(sizeof(fpr_val) != sizeof(elf_fpreg_t)); + for (i = 0; i < NUM_FPU_REGS; i++) { + fpr_val = get_fpr64(&target->thread.fpu.fpr[i], 0); + err = user_regset_copyout(pos, count, kbuf, ubuf, + &fpr_val, i * sizeof(elf_fpreg_t), + (i + 1) * sizeof(elf_fpreg_t)); + if (err) + return err; + } + + return 0; +} + +/* + * Copy the floating-point context to the supplied NT_PRFPREG buffer. + * Choose the appropriate helper for general registers, and then copy + * the FCSR register separately. + */ static int fpr_get(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - unsigned i; + const int fcr31_pos = NUM_FPU_REGS * sizeof(elf_fpreg_t); int err; - u64 fpr_val; - /* XXX fcr31 */ + if (sizeof(target->thread.fpu.fpr[0]) == sizeof(elf_fpreg_t)) + err = fpr_get_fpa(target, &pos, &count, &kbuf, &ubuf); + else + err = fpr_get_msa(target, &pos, &count, &kbuf, &ubuf); + if (err) + return err; - if (sizeof(target->thread.fpu.fpr[i]) == sizeof(elf_fpreg_t)) - return user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &target->thread.fpu, - 0, sizeof(elf_fpregset_t)); + err = user_regset_copyout(&pos, &count, &kbuf, &ubuf, + &target->thread.fpu.fcr31, + fcr31_pos, fcr31_pos + sizeof(u32)); - for (i = 0; i < NUM_FPU_REGS; i++) { - fpr_val = get_fpr64(&target->thread.fpu.fpr[i], 0); - err = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &fpr_val, i * sizeof(elf_fpreg_t), - (i + 1) * sizeof(elf_fpreg_t)); + return err; +} + +/* + * Copy the supplied NT_PRFPREG buffer to the floating-point context, + * !CONFIG_CPU_HAS_MSA variant. Buffer slots correspond 1:1 to FP + * context's general register slots. Only general registers are copied. + */ +static int fpr_set_fpa(struct task_struct *target, + unsigned int *pos, unsigned int *count, + const void **kbuf, const void __user **ubuf) +{ + return user_regset_copyin(pos, count, kbuf, ubuf, + &target->thread.fpu, + 0, NUM_FPU_REGS * sizeof(elf_fpreg_t)); +} + +/* + * Copy the supplied NT_PRFPREG buffer to the floating-point context, + * CONFIG_CPU_HAS_MSA variant. Buffer slots are copied to lower 64 + * bits only of FP context's general register slots. Only general + * registers are copied. + */ +static int fpr_set_msa(struct task_struct *target, + unsigned int *pos, unsigned int *count, + const void **kbuf, const void __user **ubuf) +{ + unsigned int i; + u64 fpr_val; + int err; + + BUILD_BUG_ON(sizeof(fpr_val) != sizeof(elf_fpreg_t)); + for (i = 0; i < NUM_FPU_REGS && *count > 0; i++) { + err = user_regset_copyin(pos, count, kbuf, ubuf, + &fpr_val, i * sizeof(elf_fpreg_t), + (i + 1) * sizeof(elf_fpreg_t)); if (err) return err; + set_fpr64(&target->thread.fpu.fpr[i], 0, fpr_val); } return 0; } +/* + * Copy the supplied NT_PRFPREG buffer to the floating-point context. + * Choose the appropriate helper for general registers, and then copy + * the FCSR register separately. + * + * We optimize for the case where `count % sizeof(elf_fpreg_t) == 0', + * which is supposed to have been guaranteed by the kernel before + * calling us, e.g. in `ptrace_regset'. We enforce that requirement, + * so that we can safely avoid preinitializing temporaries for + * partial register writes. + */ static int fpr_set(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - unsigned i; + const int fcr31_pos = NUM_FPU_REGS * sizeof(elf_fpreg_t); + u32 fcr31; int err; - u64 fpr_val; - /* XXX fcr31 */ + BUG_ON(count % sizeof(elf_fpreg_t)); + + if (pos + count > sizeof(elf_fpregset_t)) + return -EIO; init_fp_ctx(target); - if (sizeof(target->thread.fpu.fpr[i]) == sizeof(elf_fpreg_t)) - return user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &target->thread.fpu, - 0, sizeof(elf_fpregset_t)); + if (sizeof(target->thread.fpu.fpr[0]) == sizeof(elf_fpreg_t)) + err = fpr_set_fpa(target, &pos, &count, &kbuf, &ubuf); + else + err = fpr_set_msa(target, &pos, &count, &kbuf, &ubuf); + if (err) + return err; - BUILD_BUG_ON(sizeof(fpr_val) != sizeof(elf_fpreg_t)); - for (i = 0; i < NUM_FPU_REGS && count >= sizeof(elf_fpreg_t); i++) { + if (count > 0) { err = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &fpr_val, i * sizeof(elf_fpreg_t), - (i + 1) * sizeof(elf_fpreg_t)); + &fcr31, + fcr31_pos, fcr31_pos + sizeof(u32)); if (err) return err; - set_fpr64(&target->thread.fpu.fpr[i], 0, fpr_val); + + ptrace_setfcr31(target, fcr31); } - return 0; + return err; } enum mips_regset { diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h index dd5a08aaa4da..3eb4bfc1fb36 100644 --- a/arch/parisc/include/asm/ldcw.h +++ b/arch/parisc/include/asm/ldcw.h @@ -12,6 +12,7 @@ for the semaphore. */ #define __PA_LDCW_ALIGNMENT 16 +#define __PA_LDCW_ALIGN_ORDER 4 #define __ldcw_align(a) ({ \ unsigned long __ret = (unsigned long) &(a)->lock[0]; \ __ret = (__ret + __PA_LDCW_ALIGNMENT - 1) \ @@ -29,6 +30,7 @@ ldcd). */ #define __PA_LDCW_ALIGNMENT 4 +#define __PA_LDCW_ALIGN_ORDER 2 #define __ldcw_align(a) (&(a)->slock) #define __LDCW "ldcw,co" diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c index d8f77358e2ba..29b99b8964aa 100644 --- a/arch/parisc/kernel/drivers.c +++ b/arch/parisc/kernel/drivers.c @@ -870,7 +870,7 @@ static void print_parisc_device(struct parisc_device *dev) static int count; print_pa_hwpath(dev, hw_path); - printk(KERN_INFO "%d. %s at 0x%p [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }", + printk(KERN_INFO "%d. %s at 0x%px [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }", ++count, dev->name, (void*) dev->hpa.start, hw_path, dev->id.hw_type, dev->id.hversion_rev, dev->id.hversion, dev->id.sversion); diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index f3cecf5117cf..e95207c0565e 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -35,6 +35,7 @@ #include <asm/pgtable.h> #include <asm/signal.h> #include <asm/unistd.h> +#include <asm/ldcw.h> #include <asm/thread_info.h> #include <linux/linkage.h> @@ -46,6 +47,14 @@ #endif .import pa_tlb_lock,data + .macro load_pa_tlb_lock reg +#if __PA_LDCW_ALIGNMENT > 4 + load32 PA(pa_tlb_lock) + __PA_LDCW_ALIGNMENT-1, \reg + depi 0,31,__PA_LDCW_ALIGN_ORDER, \reg +#else + load32 PA(pa_tlb_lock), \reg +#endif + .endm /* space_to_prot macro creates a prot id from a space id */ @@ -457,7 +466,7 @@ .macro tlb_lock spc,ptp,pte,tmp,tmp1,fault #ifdef CONFIG_SMP cmpib,COND(=),n 0,\spc,2f - load32 PA(pa_tlb_lock),\tmp + load_pa_tlb_lock \tmp 1: LDCW 0(\tmp),\tmp1 cmpib,COND(=) 0,\tmp1,1b nop @@ -480,7 +489,7 @@ /* Release pa_tlb_lock lock. */ .macro tlb_unlock1 spc,tmp #ifdef CONFIG_SMP - load32 PA(pa_tlb_lock),\tmp + load_pa_tlb_lock \tmp tlb_unlock0 \spc,\tmp #endif .endm diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S index adf7187f8951..2d40c4ff3f69 100644 --- a/arch/parisc/kernel/pacache.S +++ b/arch/parisc/kernel/pacache.S @@ -36,6 +36,7 @@ #include <asm/assembly.h> #include <asm/pgtable.h> #include <asm/cache.h> +#include <asm/ldcw.h> #include <linux/linkage.h> .text @@ -333,8 +334,12 @@ ENDPROC_CFI(flush_data_cache_local) .macro tlb_lock la,flags,tmp #ifdef CONFIG_SMP - ldil L%pa_tlb_lock,%r1 - ldo R%pa_tlb_lock(%r1),\la +#if __PA_LDCW_ALIGNMENT > 4 + load32 pa_tlb_lock + __PA_LDCW_ALIGNMENT-1, \la + depi 0,31,__PA_LDCW_ALIGN_ORDER, \la +#else + load32 pa_tlb_lock, \la +#endif rsm PSW_SM_I,\flags 1: LDCW 0(\la),\tmp cmpib,<>,n 0,\tmp,3f diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 30f92391a93e..cad3e8661cd6 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -39,6 +39,7 @@ #include <linux/kernel.h> #include <linux/mm.h> #include <linux/fs.h> +#include <linux/cpu.h> #include <linux/module.h> #include <linux/personality.h> #include <linux/ptrace.h> @@ -184,6 +185,44 @@ int dump_task_fpu (struct task_struct *tsk, elf_fpregset_t *r) } /* + * Idle thread support + * + * Detect when running on QEMU with SeaBIOS PDC Firmware and let + * QEMU idle the host too. + */ + +int running_on_qemu __read_mostly; + +void __cpuidle arch_cpu_idle_dead(void) +{ + /* nop on real hardware, qemu will offline CPU. */ + asm volatile("or %%r31,%%r31,%%r31\n":::); +} + +void __cpuidle arch_cpu_idle(void) +{ + local_irq_enable(); + + /* nop on real hardware, qemu will idle sleep. */ + asm volatile("or %%r10,%%r10,%%r10\n":::); +} + +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); + + return 0; +} +arch_initcall(parisc_idle_init); + +/* * Copy architecture-specific thread state */ int diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 13f7854e0d49..48f41399fc0b 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -631,11 +631,11 @@ void __init mem_init(void) mem_init_print_info(NULL); #ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */ printk("virtual kernel memory layout:\n" - " vmalloc : 0x%p - 0x%p (%4ld MB)\n" - " memory : 0x%p - 0x%p (%4ld MB)\n" - " .init : 0x%p - 0x%p (%4ld kB)\n" - " .data : 0x%p - 0x%p (%4ld kB)\n" - " .text : 0x%p - 0x%p (%4ld kB)\n", + " vmalloc : 0x%px - 0x%px (%4ld MB)\n" + " memory : 0x%px - 0x%px (%4ld MB)\n" + " .init : 0x%px - 0x%px (%4ld kB)\n" + " .data : 0x%px - 0x%px (%4ld kB)\n" + " .text : 0x%px - 0x%px (%4ld kB)\n", (void*)VMALLOC_START, (void*)VMALLOC_END, (VMALLOC_END - VMALLOC_START) >> 20, diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c index 29ebe2fd5867..a93d719edc90 100644 --- a/arch/powerpc/kvm/book3s_64_mmu.c +++ b/arch/powerpc/kvm/book3s_64_mmu.c @@ -235,6 +235,7 @@ static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, gpte->may_read = true; gpte->may_write = true; gpte->page_size = MMU_PAGE_4K; + gpte->wimg = HPTE_R_M; return 0; } diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 966097232d21..b73dbc9e797d 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -65,11 +65,17 @@ struct kvm_resize_hpt { u32 order; /* These fields protected by kvm->lock */ + + /* Possible values and their usage: + * <0 an error occurred during allocation, + * -EBUSY allocation is in the progress, + * 0 allocation made successfuly. + */ int error; - bool prepare_done; - /* Private to the work thread, until prepare_done is true, - * then protected by kvm->resize_hpt_sem */ + /* Private to the work thread, until error != -EBUSY, + * then protected by kvm->lock. + */ struct kvm_hpt_info hpt; }; @@ -159,8 +165,6 @@ long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order) * Reset all the reverse-mapping chains for all memslots */ kvmppc_rmap_reset(kvm); - /* Ensure that each vcpu will flush its TLB on next entry. */ - cpumask_setall(&kvm->arch.need_tlb_flush); err = 0; goto out; } @@ -176,6 +180,10 @@ long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order) kvmppc_set_hpt(kvm, &info); out: + if (err == 0) + /* Ensure that each vcpu will flush its TLB on next entry. */ + cpumask_setall(&kvm->arch.need_tlb_flush); + mutex_unlock(&kvm->lock); return err; } @@ -1413,16 +1421,20 @@ static void resize_hpt_pivot(struct kvm_resize_hpt *resize) static void resize_hpt_release(struct kvm *kvm, struct kvm_resize_hpt *resize) { - BUG_ON(kvm->arch.resize_hpt != resize); + if (WARN_ON(!mutex_is_locked(&kvm->lock))) + return; if (!resize) return; - if (resize->hpt.virt) - kvmppc_free_hpt(&resize->hpt); + if (resize->error != -EBUSY) { + if (resize->hpt.virt) + kvmppc_free_hpt(&resize->hpt); + kfree(resize); + } - kvm->arch.resize_hpt = NULL; - kfree(resize); + if (kvm->arch.resize_hpt == resize) + kvm->arch.resize_hpt = NULL; } static void resize_hpt_prepare_work(struct work_struct *work) @@ -1431,17 +1443,41 @@ static void resize_hpt_prepare_work(struct work_struct *work) struct kvm_resize_hpt, work); struct kvm *kvm = resize->kvm; - int err; + int err = 0; - resize_hpt_debug(resize, "resize_hpt_prepare_work(): order = %d\n", - resize->order); - - err = resize_hpt_allocate(resize); + if (WARN_ON(resize->error != -EBUSY)) + return; mutex_lock(&kvm->lock); + /* Request is still current? */ + if (kvm->arch.resize_hpt == resize) { + /* We may request large allocations here: + * do not sleep with kvm->lock held for a while. + */ + mutex_unlock(&kvm->lock); + + resize_hpt_debug(resize, "resize_hpt_prepare_work(): order = %d\n", + resize->order); + + err = resize_hpt_allocate(resize); + + /* We have strict assumption about -EBUSY + * when preparing for HPT resize. + */ + if (WARN_ON(err == -EBUSY)) + err = -EINPROGRESS; + + mutex_lock(&kvm->lock); + /* It is possible that kvm->arch.resize_hpt != resize + * after we grab kvm->lock again. + */ + } + resize->error = err; - resize->prepare_done = true; + + if (kvm->arch.resize_hpt != resize) + resize_hpt_release(kvm, resize); mutex_unlock(&kvm->lock); } @@ -1466,14 +1502,12 @@ long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, if (resize) { if (resize->order == shift) { - /* Suitable resize in progress */ - if (resize->prepare_done) { - ret = resize->error; - if (ret != 0) - resize_hpt_release(kvm, resize); - } else { + /* Suitable resize in progress? */ + ret = resize->error; + if (ret == -EBUSY) ret = 100; /* estimated time in ms */ - } + else if (ret) + resize_hpt_release(kvm, resize); goto out; } @@ -1493,6 +1527,8 @@ long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, ret = -ENOMEM; goto out; } + + resize->error = -EBUSY; resize->order = shift; resize->kvm = kvm; INIT_WORK(&resize->work, resize_hpt_prepare_work); @@ -1547,16 +1583,12 @@ long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm, if (!resize || (resize->order != shift)) goto out; - ret = -EBUSY; - if (!resize->prepare_done) - goto out; - ret = resize->error; - if (ret != 0) + if (ret) goto out; ret = resize_hpt_rehash(resize); - if (ret != 0) + if (ret) goto out; resize_hpt_pivot(resize); diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index d0dc8624198f..7deaeeb14b93 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -60,6 +60,7 @@ static void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac); #define MSR_USER32 MSR_USER #define MSR_USER64 MSR_USER #define HW_PAGE_SIZE PAGE_SIZE +#define HPTE_R_M _PAGE_COHERENT #endif static bool kvmppc_is_split_real(struct kvm_vcpu *vcpu) @@ -557,6 +558,7 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu, pte.eaddr = eaddr; pte.vpage = eaddr >> 12; pte.page_size = MMU_PAGE_64K; + pte.wimg = HPTE_R_M; } switch (kvmppc_get_msr(vcpu) & (MSR_DR|MSR_IR)) { diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 4797d08581ce..6e1e39035380 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -145,6 +145,11 @@ static noinline int bad_area(struct pt_regs *regs, unsigned long address) return __bad_area(regs, address, SEGV_MAPERR); } +static noinline int bad_access(struct pt_regs *regs, unsigned long address) +{ + return __bad_area(regs, address, SEGV_ACCERR); +} + static int do_sigbus(struct pt_regs *regs, unsigned long address, unsigned int fault) { @@ -490,7 +495,7 @@ retry: good_area: if (unlikely(access_error(is_write, is_exec, vma))) - return bad_area(regs, address); + return bad_access(regs, address); /* * If for any reason at all we couldn't handle the fault, diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index e69de29bb2d1..47dacf06c679 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -0,0 +1,75 @@ +CONFIG_SMP=y +CONFIG_PCI=y +CONFIG_PCIE_XILINX=y +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_CGROUPS=y +CONFIG_CGROUP_SCHED=y +CONFIG_CFS_BANDWIDTH=y +CONFIG_CGROUP_BPF=y +CONFIG_NAMESPACES=y +CONFIG_USER_NS=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EXPERT=y +CONFIG_CHECKPOINT_RESTORE=y +CONFIG_BPF_SYSCALL=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +CONFIG_NETLINK_DIAG=y +CONFIG_DEVTMPFS=y +CONFIG_BLK_DEV_LOOP=y +CONFIG_VIRTIO_BLK=y +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_DEV_SR=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_SATA_AHCI_PLATFORM=y +CONFIG_NETDEVICES=y +CONFIG_VIRTIO_NET=y +CONFIG_MACB=y +CONFIG_E1000E=y +CONFIG_R8169=y +CONFIG_MICROSEMI_PHY=y +CONFIG_INPUT_MOUSEDEV=y +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_OF_PLATFORM=y +# CONFIG_PTP_1588_CLOCK is not set +CONFIG_DRM=y +CONFIG_DRM_RADEON=y +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_USB=y +CONFIG_USB_XHCI_HCD=y +CONFIG_USB_XHCI_PLATFORM=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_HCD_PLATFORM=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_OHCI_HCD_PLATFORM=y +CONFIG_USB_STORAGE=y +CONFIG_USB_UAS=y +CONFIG_VIRTIO_MMIO=y +CONFIG_RAS=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_AUTOFS4_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_TMPFS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_NFS_FS=y +CONFIG_NFS_V4=y +CONFIG_NFS_V4_1=y +CONFIG_NFS_V4_2=y +CONFIG_ROOT_NFS=y +# CONFIG_RCU_TRACE is not set +CONFIG_CRYPTO_USER_API_HASH=y diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h index 0d64bc9f4f91..3c7a2c97e377 100644 --- a/arch/riscv/include/asm/csr.h +++ b/arch/riscv/include/asm/csr.h @@ -17,10 +17,10 @@ #include <linux/const.h> /* Status register flags */ -#define SR_IE _AC(0x00000002, UL) /* Interrupt Enable */ -#define SR_PIE _AC(0x00000020, UL) /* Previous IE */ -#define SR_PS _AC(0x00000100, UL) /* Previously Supervisor */ -#define SR_SUM _AC(0x00040000, UL) /* Supervisor may access User Memory */ +#define SR_SIE _AC(0x00000002, UL) /* Supervisor Interrupt Enable */ +#define SR_SPIE _AC(0x00000020, UL) /* Previous Supervisor IE */ +#define SR_SPP _AC(0x00000100, UL) /* Previously Supervisor */ +#define SR_SUM _AC(0x00040000, UL) /* Supervisor may access User Memory */ #define SR_FS _AC(0x00006000, UL) /* Floating-point Status */ #define SR_FS_OFF _AC(0x00000000, UL) diff --git a/arch/riscv/include/asm/io.h b/arch/riscv/include/asm/io.h index a82ce599b639..b269451e7e85 100644 --- a/arch/riscv/include/asm/io.h +++ b/arch/riscv/include/asm/io.h @@ -21,8 +21,6 @@ #include <linux/types.h> -#ifdef CONFIG_MMU - extern void __iomem *ioremap(phys_addr_t offset, unsigned long size); /* @@ -36,8 +34,6 @@ extern void __iomem *ioremap(phys_addr_t offset, unsigned long size); extern void iounmap(volatile void __iomem *addr); -#endif /* CONFIG_MMU */ - /* Generic IO read/write. These perform native-endian accesses. */ #define __raw_writeb __raw_writeb static inline void __raw_writeb(u8 val, volatile void __iomem *addr) diff --git a/arch/riscv/include/asm/irqflags.h b/arch/riscv/include/asm/irqflags.h index 6fdc860d7f84..07a3c6d5706f 100644 --- a/arch/riscv/include/asm/irqflags.h +++ b/arch/riscv/include/asm/irqflags.h @@ -27,25 +27,25 @@ static inline unsigned long arch_local_save_flags(void) /* unconditionally enable interrupts */ static inline void arch_local_irq_enable(void) { - csr_set(sstatus, SR_IE); + csr_set(sstatus, SR_SIE); } /* unconditionally disable interrupts */ static inline void arch_local_irq_disable(void) { - csr_clear(sstatus, SR_IE); + csr_clear(sstatus, SR_SIE); } /* get status and disable interrupts */ static inline unsigned long arch_local_irq_save(void) { - return csr_read_clear(sstatus, SR_IE); + return csr_read_clear(sstatus, SR_SIE); } /* test flags */ static inline int arch_irqs_disabled_flags(unsigned long flags) { - return !(flags & SR_IE); + return !(flags & SR_SIE); } /* test hardware interrupt enable bit */ @@ -57,7 +57,7 @@ static inline int arch_irqs_disabled(void) /* set interrupt enabled status */ static inline void arch_local_irq_restore(unsigned long flags) { - csr_set(sstatus, flags & SR_IE); + csr_set(sstatus, flags & SR_SIE); } #endif /* _ASM_RISCV_IRQFLAGS_H */ diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 2cbd92ed1629..16301966d65b 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -20,8 +20,6 @@ #ifndef __ASSEMBLY__ -#ifdef CONFIG_MMU - /* Page Upper Directory not used in RISC-V */ #include <asm-generic/pgtable-nopud.h> #include <asm/page.h> @@ -413,8 +411,6 @@ static inline void pgtable_cache_init(void) /* No page table caches to initialize */ } -#endif /* CONFIG_MMU */ - #define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) #define VMALLOC_END (PAGE_OFFSET - 1) #define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) diff --git a/arch/riscv/include/asm/ptrace.h b/arch/riscv/include/asm/ptrace.h index 93b8956e25e4..2c5df945d43c 100644 --- a/arch/riscv/include/asm/ptrace.h +++ b/arch/riscv/include/asm/ptrace.h @@ -66,7 +66,7 @@ struct pt_regs { #define REG_FMT "%08lx" #endif -#define user_mode(regs) (((regs)->sstatus & SR_PS) == 0) +#define user_mode(regs) (((regs)->sstatus & SR_SPP) == 0) /* Helpers for working with the instruction pointer */ diff --git a/arch/riscv/include/asm/tlbflush.h b/arch/riscv/include/asm/tlbflush.h index 715b0f10af58..7b9c24ebdf52 100644 --- a/arch/riscv/include/asm/tlbflush.h +++ b/arch/riscv/include/asm/tlbflush.h @@ -15,8 +15,6 @@ #ifndef _ASM_RISCV_TLBFLUSH_H #define _ASM_RISCV_TLBFLUSH_H -#ifdef CONFIG_MMU - #include <linux/mm_types.h> /* @@ -64,6 +62,4 @@ static inline void flush_tlb_kernel_range(unsigned long start, flush_tlb_all(); } -#endif /* CONFIG_MMU */ - #endif /* _ASM_RISCV_TLBFLUSH_H */ diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index 27b90d64814b..14b0b22fb578 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -127,7 +127,6 @@ extern int fixup_exception(struct pt_regs *state); * call. */ -#ifdef CONFIG_MMU #define __get_user_asm(insn, x, ptr, err) \ do { \ uintptr_t __tmp; \ @@ -153,13 +152,11 @@ do { \ __disable_user_access(); \ (x) = __x; \ } while (0) -#endif /* CONFIG_MMU */ #ifdef CONFIG_64BIT #define __get_user_8(x, ptr, err) \ __get_user_asm("ld", x, ptr, err) #else /* !CONFIG_64BIT */ -#ifdef CONFIG_MMU #define __get_user_8(x, ptr, err) \ do { \ u32 __user *__ptr = (u32 __user *)(ptr); \ @@ -193,7 +190,6 @@ do { \ (x) = (__typeof__(x))((__typeof__((x)-(x)))( \ (((u64)__hi << 32) | __lo))); \ } while (0) -#endif /* CONFIG_MMU */ #endif /* CONFIG_64BIT */ @@ -267,8 +263,6 @@ do { \ ((x) = 0, -EFAULT); \ }) - -#ifdef CONFIG_MMU #define __put_user_asm(insn, x, ptr, err) \ do { \ uintptr_t __tmp; \ @@ -292,14 +286,11 @@ do { \ : "rJ" (__x), "i" (-EFAULT)); \ __disable_user_access(); \ } while (0) -#endif /* CONFIG_MMU */ - #ifdef CONFIG_64BIT #define __put_user_8(x, ptr, err) \ __put_user_asm("sd", x, ptr, err) #else /* !CONFIG_64BIT */ -#ifdef CONFIG_MMU #define __put_user_8(x, ptr, err) \ do { \ u32 __user *__ptr = (u32 __user *)(ptr); \ @@ -329,7 +320,6 @@ do { \ : "rJ" (__x), "rJ" (__x >> 32), "i" (-EFAULT)); \ __disable_user_access(); \ } while (0) -#endif /* CONFIG_MMU */ #endif /* CONFIG_64BIT */ @@ -438,7 +428,6 @@ unsigned long __must_check clear_user(void __user *to, unsigned long n) * will set "err" to -EFAULT, while successful accesses return the previous * value. */ -#ifdef CONFIG_MMU #define __cmpxchg_user(ptr, old, new, err, size, lrb, scb) \ ({ \ __typeof__(ptr) __ptr = (ptr); \ @@ -508,6 +497,5 @@ unsigned long __must_check clear_user(void __user *to, unsigned long n) (err) = __err; \ __ret; \ }) -#endif /* CONFIG_MMU */ #endif /* _ASM_RISCV_UACCESS_H */ diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h index 9f250ed007cd..2f704a5c4196 100644 --- a/arch/riscv/include/asm/unistd.h +++ b/arch/riscv/include/asm/unistd.h @@ -14,3 +14,4 @@ #define __ARCH_HAVE_MMU #define __ARCH_WANT_SYS_CLONE #include <uapi/asm/unistd.h> +#include <uapi/asm/syscalls.h> diff --git a/arch/riscv/include/asm/vdso-syscalls.h b/arch/riscv/include/asm/vdso-syscalls.h deleted file mode 100644 index a2ccf1894929..000000000000 --- a/arch/riscv/include/asm/vdso-syscalls.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Copyright (C) 2017 SiFive - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef _ASM_RISCV_VDSO_SYSCALLS_H -#define _ASM_RISCV_VDSO_SYSCALLS_H - -#ifdef CONFIG_SMP - -/* These syscalls are only used by the vDSO and are not in the uapi. */ -#define __NR_riscv_flush_icache (__NR_arch_specific_syscall + 15) -__SYSCALL(__NR_riscv_flush_icache, sys_riscv_flush_icache) - -#endif - -#endif /* _ASM_RISCV_VDSO_H */ diff --git a/arch/riscv/include/uapi/asm/syscalls.h b/arch/riscv/include/uapi/asm/syscalls.h new file mode 100644 index 000000000000..818655b0d535 --- /dev/null +++ b/arch/riscv/include/uapi/asm/syscalls.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2017 SiFive + */ + +#ifndef _ASM__UAPI__SYSCALLS_H +#define _ASM__UAPI__SYSCALLS_H + +/* + * Allows the instruction cache to be flushed from userspace. Despite RISC-V + * having a direct 'fence.i' instruction available to userspace (which we + * can't trap!), that's not actually viable when running on Linux because the + * kernel might schedule a process on another hart. There is no way for + * userspace to handle this without invoking the kernel (as it doesn't know the + * thread->hart mappings), so we've defined a RISC-V specific system call to + * flush the instruction cache. + * + * __NR_riscv_flush_icache is defined to flush the instruction cache over an + * address range, with the flush applying to either all threads or just the + * caller. We don't currently do anything with the address range, that's just + * in there for forwards compatibility. + */ +#define __NR_riscv_flush_icache (__NR_arch_specific_syscall + 15) +__SYSCALL(__NR_riscv_flush_icache, sys_riscv_flush_icache) + +#endif diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S index 20ee86f782a9..7404ec222406 100644 --- a/arch/riscv/kernel/entry.S +++ b/arch/riscv/kernel/entry.S @@ -196,7 +196,7 @@ handle_syscall: addi s2, s2, 0x4 REG_S s2, PT_SEPC(sp) /* System calls run with interrupts enabled */ - csrs sstatus, SR_IE + csrs sstatus, SR_SIE /* Trace syscalls, but only if requested by the user. */ REG_L t0, TASK_TI_FLAGS(tp) andi t0, t0, _TIF_SYSCALL_TRACE @@ -224,8 +224,8 @@ ret_from_syscall: ret_from_exception: REG_L s0, PT_SSTATUS(sp) - csrc sstatus, SR_IE - andi s0, s0, SR_PS + csrc sstatus, SR_SIE + andi s0, s0, SR_SPP bnez s0, restore_all resume_userspace: @@ -255,7 +255,7 @@ work_pending: bnez s1, work_resched work_notifysig: /* Handle pending signals and notify-resume requests */ - csrs sstatus, SR_IE /* Enable interrupts for do_notify_resume() */ + csrs sstatus, SR_SIE /* Enable interrupts for do_notify_resume() */ move a0, sp /* pt_regs */ move a1, s0 /* current_thread_info->flags */ tail do_notify_resume diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c index 0d90dcc1fbd3..d74d4adf2d54 100644 --- a/arch/riscv/kernel/process.c +++ b/arch/riscv/kernel/process.c @@ -76,7 +76,7 @@ void show_regs(struct pt_regs *regs) void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) { - regs->sstatus = SR_PIE /* User mode, irqs on */ | SR_FS_INITIAL; + regs->sstatus = SR_SPIE /* User mode, irqs on */ | SR_FS_INITIAL; regs->sepc = pc; regs->sp = sp; set_fs(USER_DS); @@ -110,7 +110,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, const register unsigned long gp __asm__ ("gp"); memset(childregs, 0, sizeof(struct pt_regs)); childregs->gp = gp; - childregs->sstatus = SR_PS | SR_PIE; /* Supervisor, irqs on */ + childregs->sstatus = SR_SPP | SR_SPIE; /* Supervisor, irqs on */ p->thread.ra = (unsigned long)ret_from_kernel_thread; p->thread.s[0] = usp; /* fn */ diff --git a/arch/riscv/kernel/syscall_table.c b/arch/riscv/kernel/syscall_table.c index a5bd6401f95e..ade52b903a43 100644 --- a/arch/riscv/kernel/syscall_table.c +++ b/arch/riscv/kernel/syscall_table.c @@ -23,5 +23,4 @@ void *sys_call_table[__NR_syscalls] = { [0 ... __NR_syscalls - 1] = sys_ni_syscall, #include <asm/unistd.h> -#include <asm/vdso-syscalls.h> }; diff --git a/arch/riscv/kernel/vdso/flush_icache.S b/arch/riscv/kernel/vdso/flush_icache.S index b0fbad74e873..023e4d4aef58 100644 --- a/arch/riscv/kernel/vdso/flush_icache.S +++ b/arch/riscv/kernel/vdso/flush_icache.S @@ -13,7 +13,6 @@ #include <linux/linkage.h> #include <asm/unistd.h> -#include <asm/vdso-syscalls.h> .text /* int __vdso_flush_icache(void *start, void *end, unsigned long flags); */ diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c index df2ca3c65048..0713f3c67ab4 100644 --- a/arch/riscv/mm/fault.c +++ b/arch/riscv/mm/fault.c @@ -63,7 +63,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs) goto vmalloc_fault; /* Enable interrupts if they were enabled in the parent context. */ - if (likely(regs->sstatus & SR_PIE)) + if (likely(regs->sstatus & SR_SPIE)) local_irq_enable(); /* diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ec8b68e97d3c..2c93cbbcd15e 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -792,11 +792,12 @@ static int kvm_s390_vm_start_migration(struct kvm *kvm) if (kvm->arch.use_cmma) { /* - * Get the last slot. They should be sorted by base_gfn, so the - * last slot is also the one at the end of the address space. - * We have verified above that at least one slot is present. + * Get the first slot. They are reverse sorted by base_gfn, so + * the first slot is also the one at the end of the address + * space. We have verified above that at least one slot is + * present. */ - ms = slots->memslots + slots->used_slots - 1; + ms = slots->memslots; /* round up so we only use full longs */ ram_pages = roundup(ms->base_gfn + ms->npages, BITS_PER_LONG); /* allocate enough bytes to store all the bits */ diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 572496c688cc..0714bfa56da0 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -1006,7 +1006,7 @@ static inline int do_essa(struct kvm_vcpu *vcpu, const int orc) cbrlo[entries] = gfn << PAGE_SHIFT; } - if (orc) { + if (orc && gfn < ms->bitmap_size) { /* increment only if we are really flipping the bit to 1 */ if (!test_and_set_bit(gfn, ms->pgste_bitmap)) atomic64_inc(&ms->dirty_pages); diff --git a/arch/sh/boards/mach-se/770x/setup.c b/arch/sh/boards/mach-se/770x/setup.c index 77c35350ee77..412326d59e6f 100644 --- a/arch/sh/boards/mach-se/770x/setup.c +++ b/arch/sh/boards/mach-se/770x/setup.c @@ -9,6 +9,7 @@ */ #include <linux/init.h> #include <linux/platform_device.h> +#include <linux/sh_eth.h> #include <mach-se/mach/se.h> #include <mach-se/mach/mrshpc.h> #include <asm/machvec.h> @@ -115,13 +116,23 @@ static struct platform_device heartbeat_device = { #if defined(CONFIG_CPU_SUBTYPE_SH7710) ||\ defined(CONFIG_CPU_SUBTYPE_SH7712) /* SH771X Ethernet driver */ +static struct sh_eth_plat_data sh_eth_plat = { + .phy = PHY_ID, + .phy_interface = PHY_INTERFACE_MODE_MII, +}; + static struct resource sh_eth0_resources[] = { [0] = { .start = SH_ETH0_BASE, - .end = SH_ETH0_BASE + 0x1B8, + .end = SH_ETH0_BASE + 0x1B8 - 1, .flags = IORESOURCE_MEM, }, [1] = { + .start = SH_TSU_BASE, + .end = SH_TSU_BASE + 0x200 - 1, + .flags = IORESOURCE_MEM, + }, + [2] = { .start = SH_ETH0_IRQ, .end = SH_ETH0_IRQ, .flags = IORESOURCE_IRQ, @@ -132,7 +143,7 @@ static struct platform_device sh_eth0_device = { .name = "sh771x-ether", .id = 0, .dev = { - .platform_data = PHY_ID, + .platform_data = &sh_eth_plat, }, .num_resources = ARRAY_SIZE(sh_eth0_resources), .resource = sh_eth0_resources, @@ -141,10 +152,15 @@ static struct platform_device sh_eth0_device = { static struct resource sh_eth1_resources[] = { [0] = { .start = SH_ETH1_BASE, - .end = SH_ETH1_BASE + 0x1B8, + .end = SH_ETH1_BASE + 0x1B8 - 1, .flags = IORESOURCE_MEM, }, [1] = { + .start = SH_TSU_BASE, + .end = SH_TSU_BASE + 0x200 - 1, + .flags = IORESOURCE_MEM, + }, + [2] = { .start = SH_ETH1_IRQ, .end = SH_ETH1_IRQ, .flags = IORESOURCE_IRQ, @@ -155,7 +171,7 @@ static struct platform_device sh_eth1_device = { .name = "sh771x-ether", .id = 1, .dev = { - .platform_data = PHY_ID, + .platform_data = &sh_eth_plat, }, .num_resources = ARRAY_SIZE(sh_eth1_resources), .resource = sh_eth1_resources, diff --git a/arch/sh/include/mach-se/mach/se.h b/arch/sh/include/mach-se/mach/se.h index 4246ef9b07a3..aa83fe1ff0b1 100644 --- a/arch/sh/include/mach-se/mach/se.h +++ b/arch/sh/include/mach-se/mach/se.h @@ -100,6 +100,7 @@ /* Base address */ #define SH_ETH0_BASE 0xA7000000 #define SH_ETH1_BASE 0xA7000400 +#define SH_TSU_BASE 0xA7000800 /* PHY ID */ #if defined(CONFIG_CPU_SUBTYPE_SH7710) # define PHY_ID 0x00 diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d4fc98c50378..ff4e9cd99854 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -55,7 +55,6 @@ config X86 select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_KCOV if X86_64 select ARCH_HAS_PMEM_API if X86_64 - # Causing hangs/crashes, see the commit that added this change for details. select ARCH_HAS_REFCOUNT select ARCH_HAS_UACCESS_FLUSHCACHE if X86_64 select ARCH_HAS_SET_MEMORY diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index c4deb1f34faa..2b8eb4da4d08 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3781,7 +3781,8 @@ static int kvm_arch_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn) bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu) { if (unlikely(!lapic_in_kernel(vcpu) || - kvm_event_needs_reinjection(vcpu))) + kvm_event_needs_reinjection(vcpu) || + vcpu->arch.exception.pending)) return false; if (!vcpu->arch.apf.delivery_as_pf_vmexit && is_guest_mode(vcpu)) @@ -5465,30 +5466,34 @@ static void mmu_destroy_caches(void) int kvm_mmu_module_init(void) { + int ret = -ENOMEM; + kvm_mmu_clear_all_pte_masks(); pte_list_desc_cache = kmem_cache_create("pte_list_desc", sizeof(struct pte_list_desc), 0, SLAB_ACCOUNT, NULL); if (!pte_list_desc_cache) - goto nomem; + goto out; mmu_page_header_cache = kmem_cache_create("kvm_mmu_page_header", sizeof(struct kvm_mmu_page), 0, SLAB_ACCOUNT, NULL); if (!mmu_page_header_cache) - goto nomem; + goto out; if (percpu_counter_init(&kvm_total_used_mmu_pages, 0, GFP_KERNEL)) - goto nomem; + goto out; - register_shrinker(&mmu_shrinker); + ret = register_shrinker(&mmu_shrinker); + if (ret) + goto out; return 0; -nomem: +out: mmu_destroy_caches(); - return -ENOMEM; + return ret; } /* diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index eb714f1cdf7e..3158dac87f82 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -361,7 +361,6 @@ static void recalc_intercepts(struct vcpu_svm *svm) { struct vmcb_control_area *c, *h; struct nested_state *g; - u32 h_intercept_exceptions; mark_dirty(svm->vmcb, VMCB_INTERCEPTS); @@ -372,14 +371,9 @@ static void recalc_intercepts(struct vcpu_svm *svm) h = &svm->nested.hsave->control; g = &svm->nested; - /* No need to intercept #UD if L1 doesn't intercept it */ - h_intercept_exceptions = - h->intercept_exceptions & ~(1U << UD_VECTOR); - c->intercept_cr = h->intercept_cr | g->intercept_cr; c->intercept_dr = h->intercept_dr | g->intercept_dr; - c->intercept_exceptions = - h_intercept_exceptions | g->intercept_exceptions; + c->intercept_exceptions = h->intercept_exceptions | g->intercept_exceptions; c->intercept = h->intercept | g->intercept; } @@ -2202,7 +2196,6 @@ static int ud_interception(struct vcpu_svm *svm) { int er; - WARN_ON_ONCE(is_guest_mode(&svm->vcpu)); er = emulate_instruction(&svm->vcpu, EMULTYPE_TRAP_UD); if (er == EMULATE_USER_EXIT) return 0; @@ -4986,6 +4979,25 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) "mov %%r14, %c[r14](%[svm]) \n\t" "mov %%r15, %c[r15](%[svm]) \n\t" #endif + /* + * Clear host registers marked as clobbered to prevent + * speculative use. + */ + "xor %%" _ASM_BX ", %%" _ASM_BX " \n\t" + "xor %%" _ASM_CX ", %%" _ASM_CX " \n\t" + "xor %%" _ASM_DX ", %%" _ASM_DX " \n\t" + "xor %%" _ASM_SI ", %%" _ASM_SI " \n\t" + "xor %%" _ASM_DI ", %%" _ASM_DI " \n\t" +#ifdef CONFIG_X86_64 + "xor %%r8, %%r8 \n\t" + "xor %%r9, %%r9 \n\t" + "xor %%r10, %%r10 \n\t" + "xor %%r11, %%r11 \n\t" + "xor %%r12, %%r12 \n\t" + "xor %%r13, %%r13 \n\t" + "xor %%r14, %%r14 \n\t" + "xor %%r15, %%r15 \n\t" +#endif "pop %%" _ASM_BP : : [svm]"a"(svm), diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 023afa0c8887..3f89f6783aa5 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -899,8 +899,16 @@ static inline short vmcs_field_to_offset(unsigned long field) { BUILD_BUG_ON(ARRAY_SIZE(vmcs_field_to_offset_table) > SHRT_MAX); - if (field >= ARRAY_SIZE(vmcs_field_to_offset_table) || - vmcs_field_to_offset_table[field] == 0) + if (field >= ARRAY_SIZE(vmcs_field_to_offset_table)) + return -ENOENT; + + /* + * FIXME: Mitigation for CVE-2017-5753. To be replaced with a + * generic mechanism. + */ + asm("lfence"); + + if (vmcs_field_to_offset_table[field] == 0) return -ENOENT; return vmcs_field_to_offset_table[field]; @@ -1887,7 +1895,7 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu) { u32 eb; - eb = (1u << PF_VECTOR) | (1u << MC_VECTOR) | + eb = (1u << PF_VECTOR) | (1u << UD_VECTOR) | (1u << MC_VECTOR) | (1u << DB_VECTOR) | (1u << AC_VECTOR); if ((vcpu->guest_debug & (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP)) == @@ -1905,8 +1913,6 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu) */ if (is_guest_mode(vcpu)) eb |= get_vmcs12(vcpu)->exception_bitmap; - else - eb |= 1u << UD_VECTOR; vmcs_write32(EXCEPTION_BITMAP, eb); } @@ -5917,7 +5923,6 @@ static int handle_exception(struct kvm_vcpu *vcpu) return 1; /* already handled by vmx_vcpu_run() */ if (is_invalid_opcode(intr_info)) { - WARN_ON_ONCE(is_guest_mode(vcpu)); er = emulate_instruction(vcpu, EMULTYPE_TRAP_UD); if (er == EMULATE_USER_EXIT) return 0; @@ -9415,6 +9420,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) /* Save guest registers, load host registers, keep flags */ "mov %0, %c[wordsize](%%" _ASM_SP ") \n\t" "pop %0 \n\t" + "setbe %c[fail](%0)\n\t" "mov %%" _ASM_AX ", %c[rax](%0) \n\t" "mov %%" _ASM_BX ", %c[rbx](%0) \n\t" __ASM_SIZE(pop) " %c[rcx](%0) \n\t" @@ -9431,12 +9437,23 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) "mov %%r13, %c[r13](%0) \n\t" "mov %%r14, %c[r14](%0) \n\t" "mov %%r15, %c[r15](%0) \n\t" + "xor %%r8d, %%r8d \n\t" + "xor %%r9d, %%r9d \n\t" + "xor %%r10d, %%r10d \n\t" + "xor %%r11d, %%r11d \n\t" + "xor %%r12d, %%r12d \n\t" + "xor %%r13d, %%r13d \n\t" + "xor %%r14d, %%r14d \n\t" + "xor %%r15d, %%r15d \n\t" #endif "mov %%cr2, %%" _ASM_AX " \n\t" "mov %%" _ASM_AX ", %c[cr2](%0) \n\t" + "xor %%eax, %%eax \n\t" + "xor %%ebx, %%ebx \n\t" + "xor %%esi, %%esi \n\t" + "xor %%edi, %%edi \n\t" "pop %%" _ASM_BP "; pop %%" _ASM_DX " \n\t" - "setbe %c[fail](%0) \n\t" ".pushsection .rodata \n\t" ".global vmx_return \n\t" "vmx_return: " _ASM_PTR " 2b \n\t" diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index 4d62c071b166..d85076223a69 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -1325,20 +1325,18 @@ static void xen_flush_tlb_others(const struct cpumask *cpus, { struct { struct mmuext_op op; -#ifdef CONFIG_SMP - DECLARE_BITMAP(mask, num_processors); -#else DECLARE_BITMAP(mask, NR_CPUS); -#endif } *args; struct multicall_space mcs; + const size_t mc_entry_size = sizeof(args->op) + + sizeof(args->mask[0]) * BITS_TO_LONGS(num_possible_cpus()); trace_xen_mmu_flush_tlb_others(cpus, info->mm, info->start, info->end); if (cpumask_empty(cpus)) return; /* nothing to do */ - mcs = xen_mc_entry(sizeof(*args)); + mcs = xen_mc_entry(mc_entry_size); args = mcs.args; args->op.arg2.vcpumask = to_cpumask(args->mask); diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index 75011b80660f..3b34745d0a52 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -72,7 +72,7 @@ u64 xen_clocksource_read(void); void xen_setup_cpu_clockevents(void); void xen_save_time_memory_area(void); void xen_restore_time_memory_area(void); -void __init xen_init_time_ops(void); +void __ref xen_init_time_ops(void); void __init xen_hvm_init_time_ops(void); irqreturn_t xen_debug_interrupt(int irq, void *dev_id); diff --git a/block/blk-core.c b/block/blk-core.c index b8881750a3ac..3ba4326a63b5 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -562,6 +562,13 @@ static void __blk_drain_queue(struct request_queue *q, bool drain_all) } } +void blk_drain_queue(struct request_queue *q) +{ + spin_lock_irq(q->queue_lock); + __blk_drain_queue(q, true); + spin_unlock_irq(q->queue_lock); +} + /** * blk_queue_bypass_start - enter queue bypass mode * @q: queue of interest @@ -689,8 +696,6 @@ void blk_cleanup_queue(struct request_queue *q) */ blk_freeze_queue(q); spin_lock_irq(lock); - if (!q->mq_ops) - __blk_drain_queue(q, true); queue_flag_set(QUEUE_FLAG_DEAD, q); spin_unlock_irq(lock); diff --git a/block/blk-mq.c b/block/blk-mq.c index 11097477eeab..3d3797327491 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -161,6 +161,8 @@ void blk_freeze_queue(struct request_queue *q) * exported to drivers as the only user for unfreeze is blk_mq. */ blk_freeze_queue_start(q); + if (!q->mq_ops) + blk_drain_queue(q); blk_mq_freeze_queue_wait(q); } diff --git a/block/blk.h b/block/blk.h index 3f1446937aec..442098aa9463 100644 --- a/block/blk.h +++ b/block/blk.h @@ -330,4 +330,6 @@ static inline void blk_queue_bounce(struct request_queue *q, struct bio **bio) } #endif /* CONFIG_BOUNCE */ +extern void blk_drain_queue(struct request_queue *q); + #endif /* BLK_INTERNAL_H */ diff --git a/crypto/algapi.c b/crypto/algapi.c index 60d7366ed343..9a636f961572 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -167,6 +167,18 @@ void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list, spawn->alg = NULL; spawns = &inst->alg.cra_users; + + /* + * We may encounter an unregistered instance here, since + * an instance's spawns are set up prior to the instance + * being registered. An unregistered instance will have + * NULL ->cra_users.next, since ->cra_users isn't + * properly initialized until registration. But an + * unregistered instance cannot have any users, so treat + * it the same as ->cra_users being empty. + */ + if (spawns->next == NULL) + break; } } while ((spawns = crypto_more_spawns(alg, &stack, &top, &secondary_spawns))); diff --git a/drivers/block/loop.c b/drivers/block/loop.c index bc8e61506968..d5fe720cf149 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1581,9 +1581,8 @@ out: return err; } -static void lo_release(struct gendisk *disk, fmode_t mode) +static void __lo_release(struct loop_device *lo) { - struct loop_device *lo = disk->private_data; int err; if (atomic_dec_return(&lo->lo_refcnt)) @@ -1610,6 +1609,13 @@ static void lo_release(struct gendisk *disk, fmode_t mode) mutex_unlock(&lo->lo_ctl_mutex); } +static void lo_release(struct gendisk *disk, fmode_t mode) +{ + mutex_lock(&loop_index_mutex); + __lo_release(disk->private_data); + mutex_unlock(&loop_index_mutex); +} + static const struct block_device_operations lo_fops = { .owner = THIS_MODULE, .open = lo_open, diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 38fc5f397fde..cc93522a6d41 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -3047,13 +3047,21 @@ static void format_lock_cookie(struct rbd_device *rbd_dev, char *buf) mutex_unlock(&rbd_dev->watch_mutex); } +static void __rbd_lock(struct rbd_device *rbd_dev, const char *cookie) +{ + struct rbd_client_id cid = rbd_get_cid(rbd_dev); + + strcpy(rbd_dev->lock_cookie, cookie); + rbd_set_owner_cid(rbd_dev, &cid); + queue_work(rbd_dev->task_wq, &rbd_dev->acquired_lock_work); +} + /* * lock_rwsem must be held for write */ static int rbd_lock(struct rbd_device *rbd_dev) { struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; - struct rbd_client_id cid = rbd_get_cid(rbd_dev); char cookie[32]; int ret; @@ -3068,9 +3076,7 @@ static int rbd_lock(struct rbd_device *rbd_dev) return ret; rbd_dev->lock_state = RBD_LOCK_STATE_LOCKED; - strcpy(rbd_dev->lock_cookie, cookie); - rbd_set_owner_cid(rbd_dev, &cid); - queue_work(rbd_dev->task_wq, &rbd_dev->acquired_lock_work); + __rbd_lock(rbd_dev, cookie); return 0; } @@ -3856,7 +3862,7 @@ static void rbd_reacquire_lock(struct rbd_device *rbd_dev) queue_delayed_work(rbd_dev->task_wq, &rbd_dev->lock_dwork, 0); } else { - strcpy(rbd_dev->lock_cookie, cookie); + __rbd_lock(rbd_dev, cookie); } } @@ -4381,7 +4387,7 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) segment_size = rbd_obj_bytes(&rbd_dev->header); blk_queue_max_hw_sectors(q, segment_size / SECTOR_SIZE); q->limits.max_sectors = queue_max_hw_sectors(q); - blk_queue_max_segments(q, segment_size / SECTOR_SIZE); + blk_queue_max_segments(q, USHRT_MAX); blk_queue_max_segment_size(q, segment_size); blk_queue_io_min(q, segment_size); blk_queue_io_opt(q, segment_size); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 44332b793718..14532d9576e4 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2893,6 +2893,27 @@ void gpiod_set_raw_value(struct gpio_desc *desc, int value) EXPORT_SYMBOL_GPL(gpiod_set_raw_value); /** + * gpiod_set_value_nocheck() - set a GPIO line value without checking + * @desc: the descriptor to set the value on + * @value: value to set + * + * This sets the value of a GPIO line backing a descriptor, applying + * different semantic quirks like active low and open drain/source + * handling. + */ +static void gpiod_set_value_nocheck(struct gpio_desc *desc, int value) +{ + if (test_bit(FLAG_ACTIVE_LOW, &desc->flags)) + value = !value; + if (test_bit(FLAG_OPEN_DRAIN, &desc->flags)) + gpio_set_open_drain_value_commit(desc, value); + else if (test_bit(FLAG_OPEN_SOURCE, &desc->flags)) + gpio_set_open_source_value_commit(desc, value); + else + gpiod_set_raw_value_commit(desc, value); +} + +/** * gpiod_set_value() - assign a gpio's value * @desc: gpio whose value will be assigned * @value: value to assign @@ -2906,16 +2927,8 @@ EXPORT_SYMBOL_GPL(gpiod_set_raw_value); void gpiod_set_value(struct gpio_desc *desc, int value) { VALIDATE_DESC_VOID(desc); - /* Should be using gpiod_set_value_cansleep() */ WARN_ON(desc->gdev->chip->can_sleep); - if (test_bit(FLAG_ACTIVE_LOW, &desc->flags)) - value = !value; - if (test_bit(FLAG_OPEN_DRAIN, &desc->flags)) - gpio_set_open_drain_value_commit(desc, value); - else if (test_bit(FLAG_OPEN_SOURCE, &desc->flags)) - gpio_set_open_source_value_commit(desc, value); - else - gpiod_set_raw_value_commit(desc, value); + gpiod_set_value_nocheck(desc, value); } EXPORT_SYMBOL_GPL(gpiod_set_value); @@ -3243,9 +3256,7 @@ void gpiod_set_value_cansleep(struct gpio_desc *desc, int value) { might_sleep_if(extra_checks); VALIDATE_DESC_VOID(desc); - if (test_bit(FLAG_ACTIVE_LOW, &desc->flags)) - value = !value; - gpiod_set_raw_value_commit(desc, value); + gpiod_set_value_nocheck(desc, value); } EXPORT_SYMBOL_GPL(gpiod_set_value_cansleep); diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c index 85d4c57870fb..49af94627c8a 100644 --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c @@ -2777,12 +2777,12 @@ int intel_gvt_scan_and_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx) } static struct cmd_info *find_cmd_entry_any_ring(struct intel_gvt *gvt, - unsigned int opcode, int rings) + unsigned int opcode, unsigned long rings) { struct cmd_info *info = NULL; unsigned int ring; - for_each_set_bit(ring, (unsigned long *)&rings, I915_NUM_ENGINES) { + for_each_set_bit(ring, &rings, I915_NUM_ENGINES) { info = find_cmd_entry(gvt, opcode, ring); if (info) break; diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 8e331142badb..64d67ff9bf08 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -1359,12 +1359,15 @@ static int ppgtt_handle_guest_write_page_table_bytes(void *gp, return ret; } else { if (!test_bit(index, spt->post_shadow_bitmap)) { + int type = spt->shadow_page.type; + ppgtt_get_shadow_entry(spt, &se, index); ret = ppgtt_handle_guest_entry_removal(gpt, &se, index); if (ret) return ret; + ops->set_pfn(&se, vgpu->gtt.scratch_pt[type].page_mfn); + ppgtt_set_shadow_entry(spt, &se, index); } - ppgtt_set_post_shadow(spt, index); } diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 18de6569d04a..5cfba89ed586 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -467,7 +467,7 @@ static void __fence_set_priority(struct dma_fence *fence, int prio) struct drm_i915_gem_request *rq; struct intel_engine_cs *engine; - if (!dma_fence_is_i915(fence)) + if (dma_fence_is_signaled(fence) || !dma_fence_is_i915(fence)) return; rq = to_request(fence); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 333f40bc03bb..7923dfd9963c 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7027,6 +7027,8 @@ enum { #define GEN9_SLICE_COMMON_ECO_CHICKEN0 _MMIO(0x7308) #define DISABLE_PIXEL_MASK_CAMMING (1<<14) +#define GEN9_SLICE_COMMON_ECO_CHICKEN1 _MMIO(0x731c) + #define GEN7_L3SQCREG1 _MMIO(0xB010) #define VLV_B0_WA_L3SQCREG1_VALUE 0x00D30000 diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index ab5bf4e2e28e..6074e04dc99f 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -1390,6 +1390,11 @@ static int glk_init_workarounds(struct intel_engine_cs *engine) if (ret) return ret; + /* WA #0862: Userspace has to set "Barrier Mode" to avoid hangs. */ + ret = wa_ring_whitelist_reg(engine, GEN9_SLICE_COMMON_ECO_CHICKEN1); + if (ret) + return ret; + /* WaToEnableHwFixForPushConstHWBug:glk */ WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2, GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION); diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index d36e25607435..e71a8cd50498 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -974,6 +974,9 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio) GEM_BUG_ON(prio == I915_PRIORITY_INVALID); + if (i915_gem_request_completed(request)) + return; + if (prio <= READ_ONCE(request->priotree.priority)) return; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c index a2978a37b4f3..700fc754f28a 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c @@ -174,6 +174,7 @@ gf119_sor = { .links = gf119_sor_dp_links, .power = g94_sor_dp_power, .pattern = gf119_sor_dp_pattern, + .drive = gf119_sor_dp_drive, .vcpi = gf119_sor_dp_vcpi, .audio = gf119_sor_dp_audio, .audio_sym = gf119_sor_dp_audio_sym, diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c index b0a1dedac802..476079f1255f 100644 --- a/drivers/gpu/drm/tegra/sor.c +++ b/drivers/gpu/drm/tegra/sor.c @@ -2656,6 +2656,9 @@ static int tegra_sor_probe(struct platform_device *pdev) name, err); goto remove; } + } else { + /* fall back to the module clock on SOR0 (eDP/LVDS only) */ + sor->clk_out = sor->clk; } sor->clk_parent = devm_clk_get(&pdev->dev, "parent"); diff --git a/drivers/gpu/drm/vc4/vc4_irq.c b/drivers/gpu/drm/vc4/vc4_irq.c index 26eddbb62893..3dd62d75f531 100644 --- a/drivers/gpu/drm/vc4/vc4_irq.c +++ b/drivers/gpu/drm/vc4/vc4_irq.c @@ -209,9 +209,6 @@ vc4_irq_postinstall(struct drm_device *dev) { struct vc4_dev *vc4 = to_vc4_dev(dev); - /* Undo the effects of a previous vc4_irq_uninstall. */ - enable_irq(dev->irq); - /* Enable both the render done and out of memory interrupts. */ V3D_WRITE(V3D_INTENA, V3D_DRIVER_IRQS); diff --git a/drivers/gpu/drm/vc4/vc4_v3d.c b/drivers/gpu/drm/vc4/vc4_v3d.c index 622cd43840b8..493f392b3a0a 100644 --- a/drivers/gpu/drm/vc4/vc4_v3d.c +++ b/drivers/gpu/drm/vc4/vc4_v3d.c @@ -327,6 +327,9 @@ static int vc4_v3d_runtime_resume(struct device *dev) return ret; vc4_v3d_init_hw(vc4->dev); + + /* We disabled the IRQ as part of vc4_irq_uninstall in suspend. */ + enable_irq(vc4->dev->irq); vc4_irq_postinstall(vc4->dev); return 0; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 21c62a34e558..87e8af5776a3 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -2731,6 +2731,8 @@ static int vmw_cmd_dx_view_define(struct vmw_private *dev_priv, } view_type = vmw_view_cmd_to_type(header->id); + if (view_type == vmw_view_max) + return -EINVAL; cmd = container_of(header, typeof(*cmd), header); ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, user_surface_converter, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 0545740b3724..641294aef165 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -697,7 +697,6 @@ vmw_du_plane_duplicate_state(struct drm_plane *plane) vps->pinned = 0; /* Mapping is managed by prepare_fb/cleanup_fb */ - memset(&vps->guest_map, 0, sizeof(vps->guest_map)); memset(&vps->host_map, 0, sizeof(vps->host_map)); vps->cpp = 0; @@ -760,11 +759,6 @@ vmw_du_plane_destroy_state(struct drm_plane *plane, /* Should have been freed by cleanup_fb */ - if (vps->guest_map.virtual) { - DRM_ERROR("Guest mapping not freed\n"); - ttm_bo_kunmap(&vps->guest_map); - } - if (vps->host_map.virtual) { DRM_ERROR("Host mapping not freed\n"); ttm_bo_kunmap(&vps->host_map); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h index ff9c8389ff21..cd9da2dd79af 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h @@ -175,7 +175,7 @@ struct vmw_plane_state { int pinned; /* For CPU Blit */ - struct ttm_bo_kmap_obj host_map, guest_map; + struct ttm_bo_kmap_obj host_map; unsigned int cpp; }; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index 90b5437fd787..b68d74888ab1 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -114,7 +114,7 @@ struct vmw_screen_target_display_unit { bool defined; /* For CPU Blit */ - struct ttm_bo_kmap_obj host_map, guest_map; + struct ttm_bo_kmap_obj host_map; unsigned int cpp; }; @@ -695,7 +695,8 @@ static void vmw_stdu_dmabuf_cpu_commit(struct vmw_kms_dirty *dirty) s32 src_pitch, dst_pitch; u8 *src, *dst; bool not_used; - + struct ttm_bo_kmap_obj guest_map; + int ret; if (!dirty->num_hits) return; @@ -706,6 +707,13 @@ static void vmw_stdu_dmabuf_cpu_commit(struct vmw_kms_dirty *dirty) if (width == 0 || height == 0) return; + ret = ttm_bo_kmap(&ddirty->buf->base, 0, ddirty->buf->base.num_pages, + &guest_map); + if (ret) { + DRM_ERROR("Failed mapping framebuffer for blit: %d\n", + ret); + goto out_cleanup; + } /* Assume we are blitting from Host (display_srf) to Guest (dmabuf) */ src_pitch = stdu->display_srf->base_size.width * stdu->cpp; @@ -713,7 +721,7 @@ static void vmw_stdu_dmabuf_cpu_commit(struct vmw_kms_dirty *dirty) src += ddirty->top * src_pitch + ddirty->left * stdu->cpp; dst_pitch = ddirty->pitch; - dst = ttm_kmap_obj_virtual(&stdu->guest_map, ¬_used); + dst = ttm_kmap_obj_virtual(&guest_map, ¬_used); dst += ddirty->fb_top * dst_pitch + ddirty->fb_left * stdu->cpp; @@ -772,6 +780,7 @@ static void vmw_stdu_dmabuf_cpu_commit(struct vmw_kms_dirty *dirty) vmw_fifo_commit(dev_priv, sizeof(*cmd)); } + ttm_bo_kunmap(&guest_map); out_cleanup: ddirty->left = ddirty->top = ddirty->fb_left = ddirty->fb_top = S32_MAX; ddirty->right = ddirty->bottom = S32_MIN; @@ -1109,9 +1118,6 @@ vmw_stdu_primary_plane_cleanup_fb(struct drm_plane *plane, { struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); - if (vps->guest_map.virtual) - ttm_bo_kunmap(&vps->guest_map); - if (vps->host_map.virtual) ttm_bo_kunmap(&vps->host_map); @@ -1277,33 +1283,11 @@ vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane, */ if (vps->content_fb_type == SEPARATE_DMA && !(dev_priv->capabilities & SVGA_CAP_3D)) { - - struct vmw_framebuffer_dmabuf *new_vfbd; - - new_vfbd = vmw_framebuffer_to_vfbd(new_fb); - - ret = ttm_bo_reserve(&new_vfbd->buffer->base, false, false, - NULL); - if (ret) - goto out_srf_unpin; - - ret = ttm_bo_kmap(&new_vfbd->buffer->base, 0, - new_vfbd->buffer->base.num_pages, - &vps->guest_map); - - ttm_bo_unreserve(&new_vfbd->buffer->base); - - if (ret) { - DRM_ERROR("Failed to map content buffer to CPU\n"); - goto out_srf_unpin; - } - ret = ttm_bo_kmap(&vps->surf->res.backup->base, 0, vps->surf->res.backup->base.num_pages, &vps->host_map); if (ret) { DRM_ERROR("Failed to map display buffer to CPU\n"); - ttm_bo_kunmap(&vps->guest_map); goto out_srf_unpin; } @@ -1350,7 +1334,6 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, stdu->display_srf = vps->surf; stdu->content_fb_type = vps->content_fb_type; stdu->cpp = vps->cpp; - memcpy(&stdu->guest_map, &vps->guest_map, sizeof(vps->guest_map)); memcpy(&stdu->host_map, &vps->host_map, sizeof(vps->host_map)); if (!stdu->defined) diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h index a1d687a664f8..66f0268f37a6 100644 --- a/drivers/infiniband/core/core_priv.h +++ b/drivers/infiniband/core/core_priv.h @@ -314,7 +314,7 @@ static inline int ib_mad_enforce_security(struct ib_mad_agent_private *map, } #endif -struct ib_device *__ib_device_get_by_index(u32 ifindex); +struct ib_device *ib_device_get_by_index(u32 ifindex); /* RDMA device netlink */ void nldev_init(void); void nldev_exit(void); diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 30914f3baa5f..465520627e4b 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -134,7 +134,7 @@ static int ib_device_check_mandatory(struct ib_device *device) return 0; } -struct ib_device *__ib_device_get_by_index(u32 index) +static struct ib_device *__ib_device_get_by_index(u32 index) { struct ib_device *device; @@ -145,6 +145,22 @@ struct ib_device *__ib_device_get_by_index(u32 index) return NULL; } +/* + * Caller is responsible to return refrerence count by calling put_device() + */ +struct ib_device *ib_device_get_by_index(u32 index) +{ + struct ib_device *device; + + down_read(&lists_rwsem); + device = __ib_device_get_by_index(index); + if (device) + get_device(&device->dev); + + up_read(&lists_rwsem); + return device; +} + static struct ib_device *__ib_device_get_by_name(const char *name) { struct ib_device *device; diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 9a05245a1acf..0dcd1aa6f683 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -142,27 +142,34 @@ static int nldev_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); - device = __ib_device_get_by_index(index); + device = ib_device_get_by_index(index); if (!device) return -EINVAL; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) - return -ENOMEM; + if (!msg) { + err = -ENOMEM; + goto err; + } nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq, RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET), 0, 0); err = fill_dev_info(msg, device); - if (err) { - nlmsg_free(msg); - return err; - } + if (err) + goto err_free; nlmsg_end(msg, nlh); + put_device(&device->dev); return rdma_nl_unicast(msg, NETLINK_CB(skb).portid); + +err_free: + nlmsg_free(msg); +err: + put_device(&device->dev); + return err; } static int _nldev_get_dumpit(struct ib_device *device, @@ -220,31 +227,40 @@ static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, return -EINVAL; index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); - device = __ib_device_get_by_index(index); + device = ib_device_get_by_index(index); if (!device) return -EINVAL; port = nla_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]); - if (!rdma_is_port_valid(device, port)) - return -EINVAL; + if (!rdma_is_port_valid(device, port)) { + err = -EINVAL; + goto err; + } msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) - return -ENOMEM; + if (!msg) { + err = -ENOMEM; + goto err; + } nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq, RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET), 0, 0); err = fill_port_info(msg, device, port); - if (err) { - nlmsg_free(msg); - return err; - } + if (err) + goto err_free; nlmsg_end(msg, nlh); + put_device(&device->dev); return rdma_nl_unicast(msg, NETLINK_CB(skb).portid); + +err_free: + nlmsg_free(msg); +err: + put_device(&device->dev); + return err; } static int nldev_port_get_dumpit(struct sk_buff *skb, @@ -265,7 +281,7 @@ static int nldev_port_get_dumpit(struct sk_buff *skb, return -EINVAL; ifindex = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]); - device = __ib_device_get_by_index(ifindex); + device = ib_device_get_by_index(ifindex); if (!device) return -EINVAL; @@ -299,7 +315,9 @@ static int nldev_port_get_dumpit(struct sk_buff *skb, nlmsg_end(skb, nlh); } -out: cb->args[0] = idx; +out: + put_device(&device->dev); + cb->args[0] = idx; return skb->len; } diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 313bfb9ccb71..4975f3e6596e 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -642,7 +642,6 @@ struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, goto err_free_mr; mr->max_pages = max_num_sg; - err = mlx4_mr_enable(dev->dev, &mr->mmr); if (err) goto err_free_pl; @@ -653,6 +652,7 @@ struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, return &mr->ibmr; err_free_pl: + mr->ibmr.device = pd->device; mlx4_free_priv_pages(mr); err_free_mr: (void) mlx4_mr_free(dev->dev, &mr->mmr); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 12b7f911f0e5..8880351df179 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -902,8 +902,8 @@ static int path_rec_start(struct net_device *dev, return 0; } -static void neigh_add_path(struct sk_buff *skb, u8 *daddr, - struct net_device *dev) +static struct ipoib_neigh *neigh_add_path(struct sk_buff *skb, u8 *daddr, + struct net_device *dev) { struct ipoib_dev_priv *priv = ipoib_priv(dev); struct rdma_netdev *rn = netdev_priv(dev); @@ -917,7 +917,15 @@ static void neigh_add_path(struct sk_buff *skb, u8 *daddr, spin_unlock_irqrestore(&priv->lock, flags); ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); - return; + return NULL; + } + + /* To avoid race condition, make sure that the + * neigh will be added only once. + */ + if (unlikely(!list_empty(&neigh->list))) { + spin_unlock_irqrestore(&priv->lock, flags); + return neigh; } path = __path_find(dev, daddr + 4); @@ -956,7 +964,7 @@ static void neigh_add_path(struct sk_buff *skb, u8 *daddr, path->ah->last_send = rn->send(dev, skb, path->ah->ah, IPOIB_QPN(daddr)); ipoib_neigh_put(neigh); - return; + return NULL; } } else { neigh->ah = NULL; @@ -973,7 +981,7 @@ static void neigh_add_path(struct sk_buff *skb, u8 *daddr, spin_unlock_irqrestore(&priv->lock, flags); ipoib_neigh_put(neigh); - return; + return NULL; err_path: ipoib_neigh_free(neigh); @@ -983,6 +991,8 @@ err_drop: spin_unlock_irqrestore(&priv->lock, flags); ipoib_neigh_put(neigh); + + return NULL; } static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, @@ -1091,8 +1101,9 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) case htons(ETH_P_TIPC): neigh = ipoib_neigh_get(dev, phdr->hwaddr); if (unlikely(!neigh)) { - neigh_add_path(skb, phdr->hwaddr, dev); - return NETDEV_TX_OK; + neigh = neigh_add_path(skb, phdr->hwaddr, dev); + if (likely(!neigh)) + return NETDEV_TX_OK; } break; case htons(ETH_P_ARP): diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 93e149efc1f5..9b3f47ae2016 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -816,7 +816,10 @@ void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb) spin_lock_irqsave(&priv->lock, flags); if (!neigh) { neigh = ipoib_neigh_alloc(daddr, dev); - if (neigh) { + /* Make sure that the neigh will be added only + * once to mcast list. + */ + if (neigh && list_empty(&neigh->list)) { kref_get(&mcast->ah->ref); neigh->ah = mcast->ah; list_add_tail(&neigh->list, &mcast->neigh_list); diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 8a1bd354b1cc..bfa576aa9f03 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -1013,8 +1013,7 @@ static int srpt_init_ch_qp(struct srpt_rdma_ch *ch, struct ib_qp *qp) return -ENOMEM; attr->qp_state = IB_QPS_INIT; - attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_READ | - IB_ACCESS_REMOTE_WRITE; + attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE; attr->port_num = ch->sport->port; attr->pkey_index = 0; @@ -2078,7 +2077,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id, goto destroy_ib; } - guid = (__be16 *)¶m->primary_path->sgid.global.interface_id; + guid = (__be16 *)¶m->primary_path->dgid.global.interface_id; snprintf(ch->ini_guid, sizeof(ch->ini_guid), "%04x:%04x:%04x:%04x", be16_to_cpu(guid[0]), be16_to_cpu(guid[1]), be16_to_cpu(guid[2]), be16_to_cpu(guid[3])); diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c index 3d8ff09eba57..c868a878c84f 100644 --- a/drivers/input/joystick/analog.c +++ b/drivers/input/joystick/analog.c @@ -163,7 +163,7 @@ static unsigned int get_time_pit(void) #define GET_TIME(x) do { x = (unsigned int)rdtsc(); } while (0) #define DELTA(x,y) ((y)-(x)) #define TIME_NAME "TSC" -#elif defined(__alpha__) || defined(CONFIG_MN10300) || defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_TILE) +#elif defined(__alpha__) || defined(CONFIG_MN10300) || defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_RISCV) || defined(CONFIG_TILE) #define GET_TIME(x) do { x = get_cycles(); } while (0) #define DELTA(x,y) ((y)-(x)) #define TIME_NAME "get_cycles" diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c index ae473123583b..3d51175c4d72 100644 --- a/drivers/input/misc/ims-pcu.c +++ b/drivers/input/misc/ims-pcu.c @@ -1651,7 +1651,7 @@ ims_pcu_get_cdc_union_desc(struct usb_interface *intf) return union_desc; dev_err(&intf->dev, - "Union descriptor to short (%d vs %zd\n)", + "Union descriptor too short (%d vs %zd)\n", union_desc->bLength, sizeof(*union_desc)); return NULL; } diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c index 6bf56bb5f8d9..d91f3b1c5375 100644 --- a/drivers/input/misc/xen-kbdfront.c +++ b/drivers/input/misc/xen-kbdfront.c @@ -326,8 +326,6 @@ static int xenkbd_probe(struct xenbus_device *dev, 0, width, 0, 0); input_set_abs_params(mtouch, ABS_MT_POSITION_Y, 0, height, 0, 0); - input_set_abs_params(mtouch, ABS_MT_PRESSURE, - 0, 255, 0, 0); ret = input_mt_init_slots(mtouch, num_cont, INPUT_MT_DIRECT); if (ret) { diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index b84cd978fce2..a4aaa748e987 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1613,7 +1613,7 @@ static int elantech_set_properties(struct elantech_data *etd) case 5: etd->hw_version = 3; break; - case 6 ... 14: + case 6 ... 15: etd->hw_version = 4; break; default: diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c index e102d7764bc2..a458e5ec9e41 100644 --- a/drivers/input/touchscreen/elants_i2c.c +++ b/drivers/input/touchscreen/elants_i2c.c @@ -27,6 +27,7 @@ #include <linux/module.h> #include <linux/input.h> #include <linux/interrupt.h> +#include <linux/irq.h> #include <linux/platform_device.h> #include <linux/async.h> #include <linux/i2c.h> @@ -1261,10 +1262,13 @@ static int elants_i2c_probe(struct i2c_client *client, } /* - * Systems using device tree should set up interrupt via DTS, - * the rest will use the default falling edge interrupts. + * Platform code (ACPI, DTS) should normally set up interrupt + * for us, but in case it did not let's fall back to using falling + * edge to be compatible with older Chromebooks. */ - irqflags = client->dev.of_node ? 0 : IRQF_TRIGGER_FALLING; + irqflags = irq_get_trigger_type(client->irq); + if (!irqflags) + irqflags = IRQF_TRIGGER_FALLING; error = devm_request_threaded_irq(&client->dev, client->irq, NULL, elants_i2c_irq, diff --git a/drivers/input/touchscreen/hideep.c b/drivers/input/touchscreen/hideep.c index fc080a7c2e1f..f1cd4dd9a4a3 100644 --- a/drivers/input/touchscreen/hideep.c +++ b/drivers/input/touchscreen/hideep.c @@ -10,8 +10,7 @@ #include <linux/of.h> #include <linux/firmware.h> #include <linux/delay.h> -#include <linux/gpio.h> -#include <linux/gpio/machine.h> +#include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/acpi.h> #include <linux/interrupt.h> diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index f122071688fd..744592d330ca 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1698,13 +1698,15 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain) domain->pgsize_bitmap = pgtbl_cfg.pgsize_bitmap; domain->geometry.aperture_end = (1UL << ias) - 1; domain->geometry.force_aperture = true; - smmu_domain->pgtbl_ops = pgtbl_ops; ret = finalise_stage_fn(smmu_domain, &pgtbl_cfg); - if (ret < 0) + if (ret < 0) { free_io_pgtable_ops(pgtbl_ops); + return ret; + } - return ret; + smmu_domain->pgtbl_ops = pgtbl_ops; + return 0; } static __le64 *arm_smmu_get_step_for_sid(struct arm_smmu_device *smmu, u32 sid) @@ -1731,7 +1733,7 @@ static __le64 *arm_smmu_get_step_for_sid(struct arm_smmu_device *smmu, u32 sid) static void arm_smmu_install_ste_for_dev(struct iommu_fwspec *fwspec) { - int i; + int i, j; struct arm_smmu_master_data *master = fwspec->iommu_priv; struct arm_smmu_device *smmu = master->smmu; @@ -1739,6 +1741,13 @@ static void arm_smmu_install_ste_for_dev(struct iommu_fwspec *fwspec) u32 sid = fwspec->ids[i]; __le64 *step = arm_smmu_get_step_for_sid(smmu, sid); + /* Bridged PCI devices may end up with duplicated IDs */ + for (j = 0; j < i; j++) + if (fwspec->ids[j] == sid) + break; + if (j < i) + continue; + arm_smmu_write_strtab_ent(smmu, sid, step, &master->ste); } } diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c index f3654fd2eaf3..ede4fa0ac2cc 100644 --- a/drivers/leds/led-core.c +++ b/drivers/leds/led-core.c @@ -186,8 +186,9 @@ void led_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off) { - led_stop_software_blink(led_cdev); + del_timer_sync(&led_cdev->blink_timer); + clear_bit(LED_BLINK_SW, &led_cdev->work_flags); clear_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags); clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags); diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index fcf7235d5742..157e1d9e7725 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -24,6 +24,7 @@ #include <linux/kernel.h> #include <linux/clk.h> #include <linux/slab.h> +#include <linux/module.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/mmc/host.h> @@ -667,3 +668,5 @@ int renesas_sdhi_remove(struct platform_device *pdev) return 0; } EXPORT_SYMBOL_GPL(renesas_sdhi_remove); + +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c index f7f157a62a4a..555c7f133eb8 100644 --- a/drivers/mmc/host/s3cmci.c +++ b/drivers/mmc/host/s3cmci.c @@ -1424,7 +1424,9 @@ static const struct file_operations s3cmci_fops_state = { struct s3cmci_reg { unsigned short addr; unsigned char *name; -} debug_regs[] = { +}; + +static const struct s3cmci_reg debug_regs[] = { DBG_REG(CON), DBG_REG(PRE), DBG_REG(CMDARG), @@ -1446,7 +1448,7 @@ struct s3cmci_reg { static int s3cmci_regs_show(struct seq_file *seq, void *v) { struct s3cmci_host *host = seq->private; - struct s3cmci_reg *rptr = debug_regs; + const struct s3cmci_reg *rptr = debug_regs; for (; rptr->name; rptr++) seq_printf(seq, "SDI%s\t=0x%08x\n", rptr->name, diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 90b9a9ccbe60..9285f60e5783 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -963,6 +963,7 @@ static void prepare_start_command(struct pxa3xx_nand_info *info, int command) switch (command) { case NAND_CMD_READ0: + case NAND_CMD_READOOB: case NAND_CMD_PAGEPROG: info->use_ecc = 1; break; diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 0626dcfd1f3d..760d2c07e3a2 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -526,7 +526,7 @@ static int flexcan_start_xmit(struct sk_buff *skb, struct net_device *dev) data = be32_to_cpup((__be32 *)&cf->data[0]); flexcan_write(data, &priv->tx_mb->data[0]); } - if (cf->can_dlc > 3) { + if (cf->can_dlc > 4) { data = be32_to_cpup((__be32 *)&cf->data[4]); flexcan_write(data, &priv->tx_mb->data[1]); } diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index b00358297424..12ff0020ecd6 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -395,6 +395,7 @@ static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg) if (dev->can.state == CAN_STATE_ERROR_WARNING || dev->can.state == CAN_STATE_ERROR_PASSIVE) { + cf->can_id |= CAN_ERR_CRTL; cf->data[1] = (txerr > rxerr) ? CAN_ERR_CRTL_TX_PASSIVE : CAN_ERR_CRTL_RX_PASSIVE; } diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index 68ac3e88a8ce..8bf80ad9dc44 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -449,7 +449,7 @@ static int gs_usb_set_bittiming(struct net_device *netdev) dev_err(netdev->dev.parent, "Couldn't set bittimings (err=%d)", rc); - return rc; + return (rc > 0) ? 0 : rc; } static void gs_usb_xmit_callback(struct urb *urb) diff --git a/drivers/net/can/vxcan.c b/drivers/net/can/vxcan.c index 8404e8852a0f..b4c4a2c76437 100644 --- a/drivers/net/can/vxcan.c +++ b/drivers/net/can/vxcan.c @@ -194,7 +194,7 @@ static int vxcan_newlink(struct net *net, struct net_device *dev, tbp = peer_tb; } - if (tbp[IFLA_IFNAME]) { + if (ifmp && tbp[IFLA_IFNAME]) { nla_strlcpy(ifname, tbp[IFLA_IFNAME], IFNAMSIZ); name_assign_type = NET_NAME_USER; } else { diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index f5a8dd96fd75..4498ab897d94 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1500,10 +1500,13 @@ static enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, { struct b53_device *dev = ds->priv; - /* Older models support a different tag format that we do not - * support in net/dsa/tag_brcm.c yet. + /* Older models (5325, 5365) support a different tag format that we do + * not support in net/dsa/tag_brcm.c yet. 539x and 531x5 require managed + * mode to be turned on which means we need to specifically manage ARL + * misses on multicast addresses (TBD). */ - if (is5325(dev) || is5365(dev) || !b53_can_enable_brcm_tags(ds, port)) + if (is5325(dev) || is5365(dev) || is539x(dev) || is531x5(dev) || + !b53_can_enable_brcm_tags(ds, port)) return DSA_TAG_PROTO_NONE; /* Broadcom BCM58xx chips have a flow accelerator on Port 8 diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c index f4e13a7014bd..36c8950dbd2d 100644 --- a/drivers/net/ethernet/3com/3c59x.c +++ b/drivers/net/ethernet/3com/3c59x.c @@ -602,7 +602,7 @@ struct vortex_private { struct sk_buff* rx_skbuff[RX_RING_SIZE]; struct sk_buff* tx_skbuff[TX_RING_SIZE]; unsigned int cur_rx, cur_tx; /* The next free ring entry */ - unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */ + unsigned int dirty_tx; /* The ring entries to be free()ed. */ struct vortex_extra_stats xstats; /* NIC-specific extra stats */ struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */ dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */ @@ -618,7 +618,6 @@ struct vortex_private { /* The remainder are related to chip state, mostly media selection. */ struct timer_list timer; /* Media selection timer. */ - struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */ int options; /* User-settable misc. driver options. */ unsigned int media_override:4, /* Passed-in media type. */ default_media:4, /* Read from the EEPROM/Wn3_Config. */ @@ -760,7 +759,6 @@ static void mdio_sync(struct vortex_private *vp, int bits); static int mdio_read(struct net_device *dev, int phy_id, int location); static void mdio_write(struct net_device *vp, int phy_id, int location, int value); static void vortex_timer(struct timer_list *t); -static void rx_oom_timer(struct timer_list *t); static netdev_tx_t vortex_start_xmit(struct sk_buff *skb, struct net_device *dev); static netdev_tx_t boomerang_start_xmit(struct sk_buff *skb, @@ -1601,7 +1599,6 @@ vortex_up(struct net_device *dev) timer_setup(&vp->timer, vortex_timer, 0); mod_timer(&vp->timer, RUN_AT(media_tbl[dev->if_port].wait)); - timer_setup(&vp->rx_oom_timer, rx_oom_timer, 0); if (vortex_debug > 1) pr_debug("%s: Initial media type %s.\n", @@ -1676,7 +1673,7 @@ vortex_up(struct net_device *dev) window_write16(vp, 0x0040, 4, Wn4_NetDiag); if (vp->full_bus_master_rx) { /* Boomerang bus master. */ - vp->cur_rx = vp->dirty_rx = 0; + vp->cur_rx = 0; /* Initialize the RxEarly register as recommended. */ iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD); iowrite32(0x0020, ioaddr + PktStatus); @@ -1729,6 +1726,7 @@ vortex_open(struct net_device *dev) struct vortex_private *vp = netdev_priv(dev); int i; int retval; + dma_addr_t dma; /* Use the now-standard shared IRQ implementation. */ if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ? @@ -1753,7 +1751,11 @@ vortex_open(struct net_device *dev) break; /* Bad news! */ skb_reserve(skb, NET_IP_ALIGN); /* Align IP on 16 byte boundaries */ - vp->rx_ring[i].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE)); + dma = pci_map_single(VORTEX_PCI(vp), skb->data, + PKT_BUF_SZ, PCI_DMA_FROMDEVICE); + if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma)) + break; + vp->rx_ring[i].addr = cpu_to_le32(dma); } if (i != RX_RING_SIZE) { pr_emerg("%s: no memory for rx ring\n", dev->name); @@ -2067,6 +2069,12 @@ vortex_start_xmit(struct sk_buff *skb, struct net_device *dev) int len = (skb->len + 3) & ~3; vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE); + if (dma_mapping_error(&VORTEX_PCI(vp)->dev, vp->tx_skb_dma)) { + dev_kfree_skb_any(skb); + dev->stats.tx_dropped++; + return NETDEV_TX_OK; + } + spin_lock_irq(&vp->window_lock); window_set(vp, 7); iowrite32(vp->tx_skb_dma, ioaddr + Wn7_MasterAddr); @@ -2593,7 +2601,7 @@ boomerang_rx(struct net_device *dev) int entry = vp->cur_rx % RX_RING_SIZE; void __iomem *ioaddr = vp->ioaddr; int rx_status; - int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx; + int rx_work_limit = RX_RING_SIZE; if (vortex_debug > 5) pr_debug("boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS)); @@ -2614,7 +2622,8 @@ boomerang_rx(struct net_device *dev) } else { /* The packet length: up to 4.5K!. */ int pkt_len = rx_status & 0x1fff; - struct sk_buff *skb; + struct sk_buff *skb, *newskb; + dma_addr_t newdma; dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr); if (vortex_debug > 4) @@ -2633,9 +2642,27 @@ boomerang_rx(struct net_device *dev) pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE); vp->rx_copy++; } else { + /* Pre-allocate the replacement skb. If it or its + * mapping fails then recycle the buffer thats already + * in place + */ + newskb = netdev_alloc_skb_ip_align(dev, PKT_BUF_SZ); + if (!newskb) { + dev->stats.rx_dropped++; + goto clear_complete; + } + newdma = pci_map_single(VORTEX_PCI(vp), newskb->data, + PKT_BUF_SZ, PCI_DMA_FROMDEVICE); + if (dma_mapping_error(&VORTEX_PCI(vp)->dev, newdma)) { + dev->stats.rx_dropped++; + consume_skb(newskb); + goto clear_complete; + } + /* Pass up the skbuff already on the Rx ring. */ skb = vp->rx_skbuff[entry]; - vp->rx_skbuff[entry] = NULL; + vp->rx_skbuff[entry] = newskb; + vp->rx_ring[entry].addr = cpu_to_le32(newdma); skb_put(skb, pkt_len); pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE); vp->rx_nocopy++; @@ -2653,55 +2680,15 @@ boomerang_rx(struct net_device *dev) netif_rx(skb); dev->stats.rx_packets++; } - entry = (++vp->cur_rx) % RX_RING_SIZE; - } - /* Refill the Rx ring buffers. */ - for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) { - struct sk_buff *skb; - entry = vp->dirty_rx % RX_RING_SIZE; - if (vp->rx_skbuff[entry] == NULL) { - skb = netdev_alloc_skb_ip_align(dev, PKT_BUF_SZ); - if (skb == NULL) { - static unsigned long last_jif; - if (time_after(jiffies, last_jif + 10 * HZ)) { - pr_warn("%s: memory shortage\n", - dev->name); - last_jif = jiffies; - } - if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) - mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1)); - break; /* Bad news! */ - } - vp->rx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE)); - vp->rx_skbuff[entry] = skb; - } +clear_complete: vp->rx_ring[entry].status = 0; /* Clear complete bit. */ iowrite16(UpUnstall, ioaddr + EL3_CMD); + entry = (++vp->cur_rx) % RX_RING_SIZE; } return 0; } -/* - * If we've hit a total OOM refilling the Rx ring we poll once a second - * for some memory. Otherwise there is no way to restart the rx process. - */ -static void -rx_oom_timer(struct timer_list *t) -{ - struct vortex_private *vp = from_timer(vp, t, rx_oom_timer); - struct net_device *dev = vp->mii.dev; - - spin_lock_irq(&vp->lock); - if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */ - boomerang_rx(dev); - if (vortex_debug > 1) { - pr_debug("%s: rx_oom_timer %s\n", dev->name, - ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying"); - } - spin_unlock_irq(&vp->lock); -} - static void vortex_down(struct net_device *dev, int final_down) { @@ -2711,7 +2698,6 @@ vortex_down(struct net_device *dev, int final_down) netdev_reset_queue(dev); netif_stop_queue(dev); - del_timer_sync(&vp->rx_oom_timer); del_timer_sync(&vp->timer); /* Turn off statistics ASAP. We update dev->stats below. */ diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 97c5a89a9cf7..fbe21a817bd8 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -75,6 +75,9 @@ static struct workqueue_struct *ena_wq; MODULE_DEVICE_TABLE(pci, ena_pci_tbl); static int ena_rss_init_default(struct ena_adapter *adapter); +static void check_for_admin_com_state(struct ena_adapter *adapter); +static void ena_destroy_device(struct ena_adapter *adapter); +static int ena_restore_device(struct ena_adapter *adapter); static void ena_tx_timeout(struct net_device *dev) { @@ -1565,7 +1568,7 @@ static int ena_rss_configure(struct ena_adapter *adapter) static int ena_up_complete(struct ena_adapter *adapter) { - int rc, i; + int rc; rc = ena_rss_configure(adapter); if (rc) @@ -1584,17 +1587,6 @@ static int ena_up_complete(struct ena_adapter *adapter) ena_napi_enable_all(adapter); - /* Enable completion queues interrupt */ - for (i = 0; i < adapter->num_queues; i++) - ena_unmask_interrupt(&adapter->tx_ring[i], - &adapter->rx_ring[i]); - - /* schedule napi in case we had pending packets - * from the last time we disable napi - */ - for (i = 0; i < adapter->num_queues; i++) - napi_schedule(&adapter->ena_napi[i].napi); - return 0; } @@ -1731,7 +1723,7 @@ create_err: static int ena_up(struct ena_adapter *adapter) { - int rc; + int rc, i; netdev_dbg(adapter->netdev, "%s\n", __func__); @@ -1774,6 +1766,17 @@ static int ena_up(struct ena_adapter *adapter) set_bit(ENA_FLAG_DEV_UP, &adapter->flags); + /* Enable completion queues interrupt */ + for (i = 0; i < adapter->num_queues; i++) + ena_unmask_interrupt(&adapter->tx_ring[i], + &adapter->rx_ring[i]); + + /* schedule napi in case we had pending packets + * from the last time we disable napi + */ + for (i = 0; i < adapter->num_queues; i++) + napi_schedule(&adapter->ena_napi[i].napi); + return rc; err_up: @@ -1884,6 +1887,17 @@ static int ena_close(struct net_device *netdev) if (test_bit(ENA_FLAG_DEV_UP, &adapter->flags)) ena_down(adapter); + /* Check for device status and issue reset if needed*/ + check_for_admin_com_state(adapter); + if (unlikely(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags))) { + netif_err(adapter, ifdown, adapter->netdev, + "Destroy failure, restarting device\n"); + ena_dump_stats_to_dmesg(adapter); + /* rtnl lock already obtained in dev_ioctl() layer */ + ena_destroy_device(adapter); + ena_restore_device(adapter); + } + return 0; } @@ -2544,11 +2558,12 @@ static void ena_destroy_device(struct ena_adapter *adapter) ena_com_set_admin_running_state(ena_dev, false); - ena_close(netdev); + if (test_bit(ENA_FLAG_DEV_UP, &adapter->flags)) + ena_down(adapter); /* Before releasing the ENA resources, a device reset is required. * (to prevent the device from accessing them). - * In case the reset flag is set and the device is up, ena_close + * In case the reset flag is set and the device is up, ena_down() * already perform the reset, so it can be skipped. */ if (!(test_bit(ENA_FLAG_TRIGGER_RESET, &adapter->flags) && dev_up)) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index 5ee18660bc33..c9617675f934 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -70,7 +70,7 @@ static int bnxt_vf_ndo_prep(struct bnxt *bp, int vf_id) netdev_err(bp->dev, "vf ndo called though sriov is disabled\n"); return -EINVAL; } - if (vf_id >= bp->pf.max_vfs) { + if (vf_id >= bp->pf.active_vfs) { netdev_err(bp->dev, "Invalid VF id %d\n", vf_id); return -EINVAL; } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c index 3d201d7324bd..d8fee26cd45e 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c @@ -421,7 +421,7 @@ static int bnxt_hwrm_cfa_flow_alloc(struct bnxt *bp, struct bnxt_tc_flow *flow, } /* If all IP and L4 fields are wildcarded then this is an L2 flow */ - if (is_wildcard(&l3_mask, sizeof(l3_mask)) && + if (is_wildcard(l3_mask, sizeof(*l3_mask)) && is_wildcard(&flow->l4_mask, sizeof(flow->l4_mask))) { flow_flags |= CFA_FLOW_ALLOC_REQ_FLAGS_FLOWTYPE_L2; } else { diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 6f9fa6e3c42a..d8424ed16c33 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -344,7 +344,6 @@ struct adapter_params { unsigned int sf_size; /* serial flash size in bytes */ unsigned int sf_nsec; /* # of flash sectors */ - unsigned int sf_fw_start; /* start of FW image in flash */ unsigned int fw_vers; /* firmware version */ unsigned int bs_vers; /* bootstrap version */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index f63210f15579..375ef86a84da 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -2844,8 +2844,6 @@ enum { SF_RD_DATA_FAST = 0xb, /* read flash */ SF_RD_ID = 0x9f, /* read ID */ SF_ERASE_SECTOR = 0xd8, /* erase sector */ - - FW_MAX_SIZE = 16 * SF_SEC_SIZE, }; /** @@ -3558,8 +3556,9 @@ int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size) const __be32 *p = (const __be32 *)fw_data; const struct fw_hdr *hdr = (const struct fw_hdr *)fw_data; unsigned int sf_sec_size = adap->params.sf_size / adap->params.sf_nsec; - unsigned int fw_img_start = adap->params.sf_fw_start; - unsigned int fw_start_sec = fw_img_start / sf_sec_size; + unsigned int fw_start_sec = FLASH_FW_START_SEC; + unsigned int fw_size = FLASH_FW_MAX_SIZE; + unsigned int fw_start = FLASH_FW_START; if (!size) { dev_err(adap->pdev_dev, "FW image has no data\n"); @@ -3575,9 +3574,9 @@ int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size) "FW image size differs from size in FW header\n"); return -EINVAL; } - if (size > FW_MAX_SIZE) { + if (size > fw_size) { dev_err(adap->pdev_dev, "FW image too large, max is %u bytes\n", - FW_MAX_SIZE); + fw_size); return -EFBIG; } if (!t4_fw_matches_chip(adap, hdr)) @@ -3604,11 +3603,11 @@ int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size) */ memcpy(first_page, fw_data, SF_PAGE_SIZE); ((struct fw_hdr *)first_page)->fw_ver = cpu_to_be32(0xffffffff); - ret = t4_write_flash(adap, fw_img_start, SF_PAGE_SIZE, first_page); + ret = t4_write_flash(adap, fw_start, SF_PAGE_SIZE, first_page); if (ret) goto out; - addr = fw_img_start; + addr = fw_start; for (size -= SF_PAGE_SIZE; size; size -= SF_PAGE_SIZE) { addr += SF_PAGE_SIZE; fw_data += SF_PAGE_SIZE; @@ -3618,7 +3617,7 @@ int t4_load_fw(struct adapter *adap, const u8 *fw_data, unsigned int size) } ret = t4_write_flash(adap, - fw_img_start + offsetof(struct fw_hdr, fw_ver), + fw_start + offsetof(struct fw_hdr, fw_ver), sizeof(hdr->fw_ver), (const u8 *)&hdr->fw_ver); out: if (ret) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 8184d2fca9be..a74300a4459c 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -3469,6 +3469,10 @@ fec_probe(struct platform_device *pdev) goto failed_regulator; } } else { + if (PTR_ERR(fep->reg_phy) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto failed_regulator; + } fep->reg_phy = NULL; } @@ -3552,8 +3556,9 @@ failed_clk_ipg: failed_clk: if (of_phy_is_fixed_link(np)) of_phy_deregister_fixed_link(np); -failed_phy: of_node_put(phy_node); +failed_phy: + dev_id--; failed_ioremap: free_netdev(ndev); diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c index 544114281ea7..9f8d4f8e57e3 100644 --- a/drivers/net/ethernet/freescale/gianfar_ptp.c +++ b/drivers/net/ethernet/freescale/gianfar_ptp.c @@ -319,11 +319,10 @@ static int ptp_gianfar_adjtime(struct ptp_clock_info *ptp, s64 delta) now = tmr_cnt_read(etsects); now += delta; tmr_cnt_write(etsects, now); + set_fipers(etsects); spin_unlock_irqrestore(&etsects->lock, flags); - set_fipers(etsects); - return 0; } diff --git a/drivers/net/ethernet/intel/e1000/e1000.h b/drivers/net/ethernet/intel/e1000/e1000.h index d7bdea79e9fa..8fd2458060a0 100644 --- a/drivers/net/ethernet/intel/e1000/e1000.h +++ b/drivers/net/ethernet/intel/e1000/e1000.h @@ -331,7 +331,8 @@ struct e1000_adapter { enum e1000_state_t { __E1000_TESTING, __E1000_RESETTING, - __E1000_DOWN + __E1000_DOWN, + __E1000_DISABLED }; #undef pr_fmt diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 1982f7917a8d..3dd4aeb2706d 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -945,7 +945,7 @@ static int e1000_init_hw_struct(struct e1000_adapter *adapter, static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *netdev; - struct e1000_adapter *adapter; + struct e1000_adapter *adapter = NULL; struct e1000_hw *hw; static int cards_found; @@ -955,6 +955,7 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent) u16 tmp = 0; u16 eeprom_apme_mask = E1000_EEPROM_APME; int bars, need_ioport; + bool disable_dev = false; /* do not allocate ioport bars when not needed */ need_ioport = e1000_is_need_ioport(pdev); @@ -1259,11 +1260,13 @@ err_mdio_ioremap: iounmap(hw->ce4100_gbe_mdio_base_virt); iounmap(hw->hw_addr); err_ioremap: + disable_dev = !test_and_set_bit(__E1000_DISABLED, &adapter->flags); free_netdev(netdev); err_alloc_etherdev: pci_release_selected_regions(pdev, bars); err_pci_reg: - pci_disable_device(pdev); + if (!adapter || disable_dev) + pci_disable_device(pdev); return err; } @@ -1281,6 +1284,7 @@ static void e1000_remove(struct pci_dev *pdev) struct net_device *netdev = pci_get_drvdata(pdev); struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; + bool disable_dev; e1000_down_and_stop(adapter); e1000_release_manageability(adapter); @@ -1299,9 +1303,11 @@ static void e1000_remove(struct pci_dev *pdev) iounmap(hw->flash_address); pci_release_selected_regions(pdev, adapter->bars); + disable_dev = !test_and_set_bit(__E1000_DISABLED, &adapter->flags); free_netdev(netdev); - pci_disable_device(pdev); + if (disable_dev) + pci_disable_device(pdev); } /** @@ -5156,7 +5162,8 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake) if (netif_running(netdev)) e1000_free_irq(adapter); - pci_disable_device(pdev); + if (!test_and_set_bit(__E1000_DISABLED, &adapter->flags)) + pci_disable_device(pdev); return 0; } @@ -5200,6 +5207,10 @@ static int e1000_resume(struct pci_dev *pdev) pr_err("Cannot enable PCI device from suspend\n"); return err; } + + /* flush memory to make sure state is correct */ + smp_mb__before_atomic(); + clear_bit(__E1000_DISABLED, &adapter->flags); pci_set_master(pdev); pci_enable_wake(pdev, PCI_D3hot, 0); @@ -5274,7 +5285,9 @@ static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, if (netif_running(netdev)) e1000_down(adapter); - pci_disable_device(pdev); + + if (!test_and_set_bit(__E1000_DISABLED, &adapter->flags)) + pci_disable_device(pdev); /* Request a slot slot reset. */ return PCI_ERS_RESULT_NEED_RESET; @@ -5302,6 +5315,10 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) pr_err("Cannot re-enable PCI device after reset.\n"); return PCI_ERS_RESULT_DISCONNECT; } + + /* flush memory to make sure state is correct */ + smp_mb__before_atomic(); + clear_bit(__E1000_DISABLED, &adapter->flags); pci_set_master(pdev); pci_enable_wake(pdev, PCI_D3hot, 0); diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c index d6d4ed7acf03..31277d3bb7dc 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -1367,6 +1367,9 @@ out: * Checks to see of the link status of the hardware has changed. If a * change in link status has been detected, then we read the PHY registers * to get the current speed/duplex if link exists. + * + * Returns a negative error code (-E1000_ERR_*) or 0 (link down) or 1 (link + * up). **/ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw) { @@ -1382,7 +1385,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw) * Change or Rx Sequence Error interrupt. */ if (!mac->get_link_status) - return 0; + return 1; /* First we want to see if the MII Status Register reports * link. If so, then we want to get the current speed/duplex @@ -1613,10 +1616,12 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw) * different link partner. */ ret_val = e1000e_config_fc_after_link_up(hw); - if (ret_val) + if (ret_val) { e_dbg("Error configuring flow control\n"); + return ret_val; + } - return ret_val; + return 1; } static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 321d8be80871..42dcaefc4c19 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -1573,11 +1573,18 @@ static int i40e_set_mac(struct net_device *netdev, void *p) else netdev_info(netdev, "set new mac address %pM\n", addr->sa_data); + /* Copy the address first, so that we avoid a possible race with + * .set_rx_mode(). If we copy after changing the address in the filter + * list, we might open ourselves to a narrow race window where + * .set_rx_mode could delete our dev_addr filter and prevent traffic + * from passing. + */ + ether_addr_copy(netdev->dev_addr, addr->sa_data); + spin_lock_bh(&vsi->mac_filter_hash_lock); i40e_del_mac_filter(vsi, netdev->dev_addr); i40e_add_mac_filter(vsi, addr->sa_data); spin_unlock_bh(&vsi->mac_filter_hash_lock); - ether_addr_copy(netdev->dev_addr, addr->sa_data); if (vsi->type == I40E_VSI_MAIN) { i40e_status ret; @@ -1923,6 +1930,14 @@ static int i40e_addr_unsync(struct net_device *netdev, const u8 *addr) struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; + /* Under some circumstances, we might receive a request to delete + * our own device address from our uc list. Because we store the + * device address in the VSI's MAC/VLAN filter list, we need to ignore + * such requests and not delete our device address from this list. + */ + if (ether_addr_equal(addr, netdev->dev_addr)) + return 0; + i40e_del_mac_filter(vsi, addr); return 0; @@ -6038,8 +6053,8 @@ static int i40e_validate_and_set_switch_mode(struct i40e_vsi *vsi) /* Set Bit 7 to be valid */ mode = I40E_AQ_SET_SWITCH_BIT7_VALID; - /* Set L4type to both TCP and UDP support */ - mode |= I40E_AQ_SET_SWITCH_L4_TYPE_BOTH; + /* Set L4type for TCP support */ + mode |= I40E_AQ_SET_SWITCH_L4_TYPE_TCP; /* Set cloud filter mode */ mode |= I40E_AQ_SET_SWITCH_MODE_NON_TUNNEL; @@ -6969,18 +6984,18 @@ static int i40e_add_del_cloud_filter_big_buf(struct i40e_vsi *vsi, is_valid_ether_addr(filter->src_mac)) || (is_multicast_ether_addr(filter->dst_mac) && is_multicast_ether_addr(filter->src_mac))) - return -EINVAL; + return -EOPNOTSUPP; - /* Make sure port is specified, otherwise bail out, for channel - * specific cloud filter needs 'L4 port' to be non-zero + /* Big buffer cloud filter needs 'L4 port' to be non-zero. Also, UDP + * ports are not supported via big buffer now. */ - if (!filter->dst_port) - return -EINVAL; + if (!filter->dst_port || filter->ip_proto == IPPROTO_UDP) + return -EOPNOTSUPP; /* adding filter using src_port/src_ip is not supported at this stage */ if (filter->src_port || filter->src_ipv4 || !ipv6_addr_any(&filter->ip.v6.src_ip6)) - return -EINVAL; + return -EOPNOTSUPP; /* copy element needed to add cloud filter from filter */ i40e_set_cld_element(filter, &cld_filter.element); @@ -6991,7 +7006,7 @@ static int i40e_add_del_cloud_filter_big_buf(struct i40e_vsi *vsi, is_multicast_ether_addr(filter->src_mac)) { /* MAC + IP : unsupported mode */ if (filter->dst_ipv4) - return -EINVAL; + return -EOPNOTSUPP; /* since we validated that L4 port must be valid before * we get here, start with respective "flags" value @@ -7356,7 +7371,7 @@ static int i40e_configure_clsflower(struct i40e_vsi *vsi, if (tc < 0) { dev_err(&vsi->back->pdev->dev, "Invalid traffic class\n"); - return -EINVAL; + return -EOPNOTSUPP; } if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 4566d66ffc7c..5bc2748ac468 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -3047,10 +3047,30 @@ bool __i40e_chk_linearize(struct sk_buff *skb) /* Walk through fragments adding latest fragment, testing it, and * then removing stale fragments from the sum. */ - stale = &skb_shinfo(skb)->frags[0]; - for (;;) { + for (stale = &skb_shinfo(skb)->frags[0];; stale++) { + int stale_size = skb_frag_size(stale); + sum += skb_frag_size(frag++); + /* The stale fragment may present us with a smaller + * descriptor than the actual fragment size. To account + * for that we need to remove all the data on the front and + * figure out what the remainder would be in the last + * descriptor associated with the fragment. + */ + if (stale_size > I40E_MAX_DATA_PER_TXD) { + int align_pad = -(stale->page_offset) & + (I40E_MAX_READ_REQ_SIZE - 1); + + sum -= align_pad; + stale_size -= align_pad; + + do { + sum -= I40E_MAX_DATA_PER_TXD_ALIGNED; + stale_size -= I40E_MAX_DATA_PER_TXD_ALIGNED; + } while (stale_size > I40E_MAX_DATA_PER_TXD); + } + /* if sum is negative we failed to make sufficient progress */ if (sum < 0) return true; @@ -3058,7 +3078,7 @@ bool __i40e_chk_linearize(struct sk_buff *skb) if (!nr_frags--) break; - sum -= skb_frag_size(stale++); + sum -= stale_size; } return false; diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c index 50864f99446d..1ba29bb85b67 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c @@ -2012,10 +2012,30 @@ bool __i40evf_chk_linearize(struct sk_buff *skb) /* Walk through fragments adding latest fragment, testing it, and * then removing stale fragments from the sum. */ - stale = &skb_shinfo(skb)->frags[0]; - for (;;) { + for (stale = &skb_shinfo(skb)->frags[0];; stale++) { + int stale_size = skb_frag_size(stale); + sum += skb_frag_size(frag++); + /* The stale fragment may present us with a smaller + * descriptor than the actual fragment size. To account + * for that we need to remove all the data on the front and + * figure out what the remainder would be in the last + * descriptor associated with the fragment. + */ + if (stale_size > I40E_MAX_DATA_PER_TXD) { + int align_pad = -(stale->page_offset) & + (I40E_MAX_READ_REQ_SIZE - 1); + + sum -= align_pad; + stale_size -= align_pad; + + do { + sum -= I40E_MAX_DATA_PER_TXD_ALIGNED; + stale_size -= I40E_MAX_DATA_PER_TXD_ALIGNED; + } while (stale_size > I40E_MAX_DATA_PER_TXD); + } + /* if sum is negative we failed to make sufficient progress */ if (sum < 0) return true; @@ -2023,7 +2043,7 @@ bool __i40evf_chk_linearize(struct sk_buff *skb) if (!nr_frags--) break; - sum -= skb_frag_size(stale++); + sum -= stale_size; } return false; diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c index 23f7d828cf67..6ef20e5cc77d 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci.c +++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c @@ -1643,7 +1643,12 @@ static int mlxsw_pci_sw_reset(struct mlxsw_pci *mlxsw_pci, return 0; } - wmb(); /* reset needs to be written before we read control register */ + /* Reset needs to be written before we read control register, and + * we must wait for the HW to become responsive once again + */ + wmb(); + msleep(MLXSW_PCI_SW_RESET_WAIT_MSECS); + end = jiffies + msecs_to_jiffies(MLXSW_PCI_SW_RESET_TIMEOUT_MSECS); do { u32 val = mlxsw_pci_read32(mlxsw_pci, FW_READY); diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h b/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h index a6441208e9d9..fb082ad21b00 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h +++ b/drivers/net/ethernet/mellanox/mlxsw/pci_hw.h @@ -59,6 +59,7 @@ #define MLXSW_PCI_SW_RESET 0xF0010 #define MLXSW_PCI_SW_RESET_RST_BIT BIT(0) #define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS 5000 +#define MLXSW_PCI_SW_RESET_WAIT_MSECS 100 #define MLXSW_PCI_FW_READY 0xA1844 #define MLXSW_PCI_FW_READY_MASK 0xFFFF #define MLXSW_PCI_FW_READY_MAGIC 0x5E diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 9bd8d28de152..c3837ca7a705 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -4376,7 +4376,10 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev, } if (!info->linking) break; - if (netdev_has_any_upper_dev(upper_dev)) { + if (netdev_has_any_upper_dev(upper_dev) && + (!netif_is_bridge_master(upper_dev) || + !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, + upper_dev))) { NL_SET_ERR_MSG(extack, "spectrum: Enslaving a port to a device that already has an upper device is not supported"); return -EINVAL; @@ -4504,6 +4507,7 @@ static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev, u16 vid) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct netdev_notifier_changeupper_info *info = ptr; struct netlink_ext_ack *extack; struct net_device *upper_dev; @@ -4520,7 +4524,10 @@ static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev, } if (!info->linking) break; - if (netdev_has_any_upper_dev(upper_dev)) { + if (netdev_has_any_upper_dev(upper_dev) && + (!netif_is_bridge_master(upper_dev) || + !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, + upper_dev))) { NL_SET_ERR_MSG(extack, "spectrum: Enslaving a port to a device that already has an upper device is not supported"); return -EINVAL; } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 432ab9b12b7f..05ce1befd9b3 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -365,6 +365,8 @@ int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port, void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *brport_dev, struct net_device *br_dev); +bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp, + const struct net_device *br_dev); /* spectrum.c */ int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c index c33beac5def0..b5397da94d7f 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c @@ -46,7 +46,8 @@ mlxsw_sp_tclass_congestion_enable(struct mlxsw_sp_port *mlxsw_sp_port, int tclass_num, u32 min, u32 max, u32 probability, bool is_ecn) { - char cwtp_cmd[max_t(u8, MLXSW_REG_CWTP_LEN, MLXSW_REG_CWTPM_LEN)]; + char cwtpm_cmd[MLXSW_REG_CWTPM_LEN]; + char cwtp_cmd[MLXSW_REG_CWTP_LEN]; struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; int err; @@ -60,10 +61,10 @@ mlxsw_sp_tclass_congestion_enable(struct mlxsw_sp_port *mlxsw_sp_port, if (err) return err; - mlxsw_reg_cwtpm_pack(cwtp_cmd, mlxsw_sp_port->local_port, tclass_num, + mlxsw_reg_cwtpm_pack(cwtpm_cmd, mlxsw_sp_port->local_port, tclass_num, MLXSW_REG_CWTP_DEFAULT_PROFILE, true, is_ecn); - return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(cwtpm), cwtp_cmd); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(cwtpm), cwtpm_cmd); } static int diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index be657b8533f0..434b3922b34f 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -3228,7 +3228,7 @@ static void __mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp_nexthop *nh, { if (!removing) nh->should_offload = 1; - else if (nh->offloaded) + else nh->should_offload = 0; nh->update = 1; } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index 7b8548e25ae7..593ad31be749 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -152,6 +152,12 @@ mlxsw_sp_bridge_device_find(const struct mlxsw_sp_bridge *bridge, return NULL; } +bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp, + const struct net_device *br_dev) +{ + return !!mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); +} + static struct mlxsw_sp_bridge_device * mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge, struct net_device *br_dev) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index 1a603fdd9e80..99b0487b6d82 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -568,6 +568,7 @@ nfp_net_aux_irq_request(struct nfp_net *nn, u32 ctrl_offset, return err; } nn_writeb(nn, ctrl_offset, entry->entry); + nfp_net_irq_unmask(nn, entry->entry); return 0; } @@ -582,6 +583,7 @@ static void nfp_net_aux_irq_free(struct nfp_net *nn, u32 ctrl_offset, unsigned int vector_idx) { nn_writeb(nn, ctrl_offset, 0xff); + nn_pci_flush(nn); free_irq(nn->irq_entries[vector_idx].vector, nn); } diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 75323000c364..b9e2846589f8 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -147,7 +147,7 @@ static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = { [FWNLCR0] = 0x0090, [FWALCR0] = 0x0094, [TXNLCR1] = 0x00a0, - [TXALCR1] = 0x00a0, + [TXALCR1] = 0x00a4, [RXNLCR1] = 0x00a8, [RXALCR1] = 0x00ac, [FWNLCR1] = 0x00b0, @@ -399,7 +399,7 @@ static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = { [FWNLCR0] = 0x0090, [FWALCR0] = 0x0094, [TXNLCR1] = 0x00a0, - [TXALCR1] = 0x00a0, + [TXALCR1] = 0x00a4, [RXNLCR1] = 0x00a8, [RXALCR1] = 0x00ac, [FWNLCR1] = 0x00b0, @@ -3225,18 +3225,37 @@ static int sh_eth_drv_probe(struct platform_device *pdev) /* ioremap the TSU registers */ if (mdp->cd->tsu) { struct resource *rtsu; + rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1); - mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu); - if (IS_ERR(mdp->tsu_addr)) { - ret = PTR_ERR(mdp->tsu_addr); + if (!rtsu) { + dev_err(&pdev->dev, "no TSU resource\n"); + ret = -ENODEV; + goto out_release; + } + /* We can only request the TSU region for the first port + * of the two sharing this TSU for the probe to succeed... + */ + if (devno % 2 == 0 && + !devm_request_mem_region(&pdev->dev, rtsu->start, + resource_size(rtsu), + dev_name(&pdev->dev))) { + dev_err(&pdev->dev, "can't request TSU resource.\n"); + ret = -EBUSY; + goto out_release; + } + mdp->tsu_addr = devm_ioremap(&pdev->dev, rtsu->start, + resource_size(rtsu)); + if (!mdp->tsu_addr) { + dev_err(&pdev->dev, "TSU region ioremap() failed.\n"); + ret = -ENOMEM; goto out_release; } mdp->port = devno % 2; ndev->features = NETIF_F_HW_VLAN_CTAG_FILTER; } - /* initialize first or needed device */ - if (!devno || pd->needs_init) { + /* Need to init only the first port of the two sharing a TSU */ + if (devno % 2 == 0) { if (mdp->cd->chip_reset) mdp->cd->chip_reset(ndev); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 337d53d12e94..c0af0bc4e714 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -364,9 +364,15 @@ static void stmmac_eee_ctrl_timer(struct timer_list *t) bool stmmac_eee_init(struct stmmac_priv *priv) { struct net_device *ndev = priv->dev; + int interface = priv->plat->interface; unsigned long flags; bool ret = false; + if ((interface != PHY_INTERFACE_MODE_MII) && + (interface != PHY_INTERFACE_MODE_GMII) && + !phy_interface_mode_is_rgmii(interface)) + goto out; + /* Using PCS we cannot dial with the phy registers at this stage * so we do not support extra feature like EEE. */ diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index b718a02a6bb6..0a48b3073d3d 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -825,6 +825,13 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (IS_ERR(rt)) return PTR_ERR(rt); + if (skb_dst(skb)) { + int mtu = dst_mtu(&rt->dst) - sizeof(struct iphdr) - + GENEVE_BASE_HLEN - info->options_len - 14; + + skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu); + } + sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->collect_md) { tos = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb); @@ -864,6 +871,13 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (IS_ERR(dst)) return PTR_ERR(dst); + if (skb_dst(skb)) { + int mtu = dst_mtu(dst) - sizeof(struct ipv6hdr) - + GENEVE_BASE_HLEN - info->options_len - 14; + + skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu); + } + sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); if (geneve->collect_md) { prio = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb); diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index a178c5efd33e..a0f2be81d52e 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -1444,9 +1444,14 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev, return 0; unregister_netdev: + /* macvlan_uninit would free the macvlan port */ unregister_netdevice(dev); + return err; destroy_macvlan_port: - if (create) + /* the macvlan port may be freed by macvlan_uninit when fail to register. + * so we destroy the macvlan port only when it's valid. + */ + if (create && macvlan_port_get_rtnl(dev)) macvlan_port_destroy(port->dev); return err; } diff --git a/drivers/net/phy/mdio-sun4i.c b/drivers/net/phy/mdio-sun4i.c index 135296508a7e..6425ce04d3f9 100644 --- a/drivers/net/phy/mdio-sun4i.c +++ b/drivers/net/phy/mdio-sun4i.c @@ -118,8 +118,10 @@ static int sun4i_mdio_probe(struct platform_device *pdev) data->regulator = devm_regulator_get(&pdev->dev, "phy"); if (IS_ERR(data->regulator)) { - if (PTR_ERR(data->regulator) == -EPROBE_DEFER) - return -EPROBE_DEFER; + if (PTR_ERR(data->regulator) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto err_out_free_mdiobus; + } dev_info(&pdev->dev, "no regulator found\n"); data->regulator = NULL; diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 827f3f92560e..249ce5cbea22 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -1296,6 +1296,7 @@ int phylink_mii_ioctl(struct phylink *pl, struct ifreq *ifr, int cmd) switch (cmd) { case SIOCGMIIPHY: mii->phy_id = pl->phydev->mdio.addr; + /* fall through */ case SIOCGMIIREG: ret = phylink_phy_read(pl, mii->phy_id, mii->reg_num); @@ -1318,6 +1319,7 @@ int phylink_mii_ioctl(struct phylink *pl, struct ifreq *ifr, int cmd) switch (cmd) { case SIOCGMIIPHY: mii->phy_id = 0; + /* fall through */ case SIOCGMIIREG: ret = phylink_mii_read(pl, mii->phy_id, mii->reg_num); @@ -1429,9 +1431,8 @@ static void phylink_sfp_link_down(void *upstream) WARN_ON(!lockdep_rtnl_is_held()); set_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state); + queue_work(system_power_efficient_wq, &pl->resolve); flush_work(&pl->resolve); - - netif_carrier_off(pl->netdev); } static void phylink_sfp_link_up(void *upstream) diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c index 8a1b1f4c1b7c..ab64a142b832 100644 --- a/drivers/net/phy/sfp-bus.c +++ b/drivers/net/phy/sfp-bus.c @@ -356,7 +356,8 @@ EXPORT_SYMBOL_GPL(sfp_register_upstream); void sfp_unregister_upstream(struct sfp_bus *bus) { rtnl_lock(); - sfp_unregister_bus(bus); + if (bus->sfp) + sfp_unregister_bus(bus); bus->upstream = NULL; bus->netdev = NULL; rtnl_unlock(); @@ -459,7 +460,8 @@ EXPORT_SYMBOL_GPL(sfp_register_socket); void sfp_unregister_socket(struct sfp_bus *bus) { rtnl_lock(); - sfp_unregister_bus(bus); + if (bus->netdev) + sfp_unregister_bus(bus); bus->sfp_dev = NULL; bus->sfp = NULL; bus->socket_ops = NULL; diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 3000ddd1c7e2..728819feab44 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -1100,6 +1100,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x05c6, 0x9084, 4)}, {QMI_FIXED_INTF(0x05c6, 0x920d, 0)}, {QMI_FIXED_INTF(0x05c6, 0x920d, 5)}, + {QMI_QUIRK_SET_DTR(0x05c6, 0x9625, 4)}, /* YUGA CLM920-NC5 */ {QMI_FIXED_INTF(0x0846, 0x68a2, 8)}, {QMI_FIXED_INTF(0x12d1, 0x140c, 1)}, /* Huawei E173 */ {QMI_FIXED_INTF(0x12d1, 0x14ac, 1)}, /* Huawei E1820 */ diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index f7d228b5ba93..987f1252a3cf 100644 --- a/drivers/net/wireless/ath/wcn36xx/main.c +++ b/drivers/net/wireless/ath/wcn36xx/main.c @@ -384,6 +384,18 @@ static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed) } } + if (changed & IEEE80211_CONF_CHANGE_PS) { + list_for_each_entry(tmp, &wcn->vif_list, list) { + vif = wcn36xx_priv_to_vif(tmp); + if (hw->conf.flags & IEEE80211_CONF_PS) { + if (vif->bss_conf.ps) /* ps allowed ? */ + wcn36xx_pmc_enter_bmps_state(wcn, vif); + } else { + wcn36xx_pmc_exit_bmps_state(wcn, vif); + } + } + } + mutex_unlock(&wcn->conf_mutex); return 0; @@ -747,17 +759,6 @@ static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw, vif_priv->dtim_period = bss_conf->dtim_period; } - if (changed & BSS_CHANGED_PS) { - wcn36xx_dbg(WCN36XX_DBG_MAC, - "mac bss PS set %d\n", - bss_conf->ps); - if (bss_conf->ps) { - wcn36xx_pmc_enter_bmps_state(wcn, vif); - } else { - wcn36xx_pmc_exit_bmps_state(wcn, vif); - } - } - if (changed & BSS_CHANGED_BSSID) { wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n", bss_conf->bssid); diff --git a/drivers/net/wireless/ath/wcn36xx/pmc.c b/drivers/net/wireless/ath/wcn36xx/pmc.c index 589fe5f70971..1976b80c235f 100644 --- a/drivers/net/wireless/ath/wcn36xx/pmc.c +++ b/drivers/net/wireless/ath/wcn36xx/pmc.c @@ -45,8 +45,10 @@ int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn, struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); if (WCN36XX_BMPS != vif_priv->pw_state) { - wcn36xx_err("Not in BMPS mode, no need to exit from BMPS mode!\n"); - return -EINVAL; + /* Unbalanced call or last BMPS enter failed */ + wcn36xx_dbg(WCN36XX_DBG_PMC, + "Not in BMPS mode, no need to exit\n"); + return -EALREADY; } wcn36xx_smd_exit_bmps(wcn, vif); vif_priv->pw_state = WCN36XX_FULL_POWER; diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h index d749abeca3ae..403e65c309d0 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h +++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h @@ -670,11 +670,15 @@ static inline u8 iwl_pcie_get_cmd_index(struct iwl_txq *q, u32 index) return index & (q->n_window - 1); } -static inline void *iwl_pcie_get_tfd(struct iwl_trans_pcie *trans_pcie, +static inline void *iwl_pcie_get_tfd(struct iwl_trans *trans, struct iwl_txq *txq, int idx) { - return txq->tfds + trans_pcie->tfd_size * iwl_pcie_get_cmd_index(txq, - idx); + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + + if (trans->cfg->use_tfh) + idx = iwl_pcie_get_cmd_index(txq, idx); + + return txq->tfds + trans_pcie->tfd_size * idx; } static inline void iwl_enable_rfkill_int(struct iwl_trans *trans) diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c index 16b345f54ff0..6d0a907d5ba5 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c @@ -171,8 +171,6 @@ static void iwl_pcie_gen2_tfd_unmap(struct iwl_trans *trans, static void iwl_pcie_gen2_free_tfd(struct iwl_trans *trans, struct iwl_txq *txq) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - /* rd_ptr is bounded by TFD_QUEUE_SIZE_MAX and * idx is bounded by n_window */ @@ -181,7 +179,7 @@ static void iwl_pcie_gen2_free_tfd(struct iwl_trans *trans, struct iwl_txq *txq) lockdep_assert_held(&txq->lock); iwl_pcie_gen2_tfd_unmap(trans, &txq->entries[idx].meta, - iwl_pcie_get_tfd(trans_pcie, txq, idx)); + iwl_pcie_get_tfd(trans, txq, idx)); /* free SKB */ if (txq->entries) { @@ -364,11 +362,9 @@ struct iwl_tfh_tfd *iwl_pcie_gen2_build_tfd(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_cmd_meta *out_meta) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; int idx = iwl_pcie_get_cmd_index(txq, txq->write_ptr); - struct iwl_tfh_tfd *tfd = - iwl_pcie_get_tfd(trans_pcie, txq, idx); + struct iwl_tfh_tfd *tfd = iwl_pcie_get_tfd(trans, txq, idx); dma_addr_t tb_phys; bool amsdu; int i, len, tb1_len, tb2_len, hdr_len; @@ -565,8 +561,7 @@ static int iwl_pcie_gen2_enqueue_hcmd(struct iwl_trans *trans, u8 group_id = iwl_cmd_groupid(cmd->id); const u8 *cmddata[IWL_MAX_CMD_TBS_PER_TFD]; u16 cmdlen[IWL_MAX_CMD_TBS_PER_TFD]; - struct iwl_tfh_tfd *tfd = - iwl_pcie_get_tfd(trans_pcie, txq, txq->write_ptr); + struct iwl_tfh_tfd *tfd = iwl_pcie_get_tfd(trans, txq, txq->write_ptr); memset(tfd, 0, sizeof(*tfd)); diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c index fed6d842a5e1..3f85713c41dc 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c @@ -373,7 +373,7 @@ static void iwl_pcie_tfd_unmap(struct iwl_trans *trans, { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); int i, num_tbs; - void *tfd = iwl_pcie_get_tfd(trans_pcie, txq, index); + void *tfd = iwl_pcie_get_tfd(trans, txq, index); /* Sanity check on number of chunks */ num_tbs = iwl_pcie_tfd_get_num_tbs(trans, tfd); @@ -2018,7 +2018,7 @@ static int iwl_fill_data_tbs(struct iwl_trans *trans, struct sk_buff *skb, } trace_iwlwifi_dev_tx(trans->dev, skb, - iwl_pcie_get_tfd(trans_pcie, txq, txq->write_ptr), + iwl_pcie_get_tfd(trans, txq, txq->write_ptr), trans_pcie->tfd_size, &dev_cmd->hdr, IWL_FIRST_TB_SIZE + tb1_len, hdr_len); @@ -2092,7 +2092,7 @@ static int iwl_fill_data_tbs_amsdu(struct iwl_trans *trans, struct sk_buff *skb, IEEE80211_CCMP_HDR_LEN : 0; trace_iwlwifi_dev_tx(trans->dev, skb, - iwl_pcie_get_tfd(trans_pcie, txq, txq->write_ptr), + iwl_pcie_get_tfd(trans, txq, txq->write_ptr), trans_pcie->tfd_size, &dev_cmd->hdr, IWL_FIRST_TB_SIZE + tb1_len, 0); @@ -2425,7 +2425,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, memcpy(&txq->first_tb_bufs[txq->write_ptr], &dev_cmd->hdr, IWL_FIRST_TB_SIZE); - tfd = iwl_pcie_get_tfd(trans_pcie, txq, txq->write_ptr); + tfd = iwl_pcie_get_tfd(trans, txq, txq->write_ptr); /* Set up entry for this TFD in Tx byte-count array */ iwl_pcie_txq_update_byte_cnt_tbl(trans, txq, le16_to_cpu(tx_cmd->len), iwl_pcie_tfd_get_num_tbs(trans, tfd)); diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index c5a34671abda..9bd7ddeeb6a5 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -1326,6 +1326,7 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev) netif_carrier_off(netdev); + xenbus_switch_state(dev, XenbusStateInitialising); return netdev; exit: diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 1e46e60b8f10..839650e0926a 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1335,6 +1335,7 @@ static void nvme_update_disk_info(struct gendisk *disk, struct nvme_ns *ns, struct nvme_id_ns *id) { sector_t capacity = le64_to_cpup(&id->nsze) << (ns->lba_shift - 9); + unsigned short bs = 1 << ns->lba_shift; unsigned stream_alignment = 0; if (ns->ctrl->nr_streams && ns->sws && ns->sgs) @@ -1343,7 +1344,10 @@ static void nvme_update_disk_info(struct gendisk *disk, blk_mq_freeze_queue(disk->queue); blk_integrity_unregister(disk); - blk_queue_logical_block_size(disk->queue, 1 << ns->lba_shift); + blk_queue_logical_block_size(disk->queue, bs); + blk_queue_physical_block_size(disk->queue, bs); + blk_queue_io_min(disk->queue, bs); + if (ns->ms && !ns->ext && (ns->ctrl->ops->flags & NVME_F_METADATA_SUPPORTED)) nvme_init_integrity(disk, ns->ms, ns->pi_type); @@ -2987,6 +2991,7 @@ static void nvme_ns_remove(struct nvme_ns *ns) mutex_unlock(&ns->ctrl->namespaces_mutex); synchronize_srcu(&ns->head->srcu); + nvme_mpath_check_last_path(ns); nvme_put_ns(ns); } diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index ea1aa5283e8e..a00eabd06427 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -417,6 +417,15 @@ static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns) rcu_assign_pointer(head->current_path, NULL); } struct nvme_ns *nvme_find_path(struct nvme_ns_head *head); + +static inline void nvme_mpath_check_last_path(struct nvme_ns *ns) +{ + struct nvme_ns_head *head = ns->head; + + if (head->disk && list_empty(&head->list)) + kblockd_schedule_work(&head->requeue_work); +} + #else static inline void nvme_failover_req(struct request *req) { @@ -448,6 +457,9 @@ static inline void nvme_mpath_remove_disk_links(struct nvme_ns *ns) static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns) { } +static inline void nvme_mpath_check_last_path(struct nvme_ns *ns) +{ +} #endif /* CONFIG_NVME_MULTIPATH */ #ifdef CONFIG_NVM diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index f5800c3c9082..d53550e612bc 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -448,12 +448,31 @@ static void **nvme_pci_iod_list(struct request *req) return (void **)(iod->sg + blk_rq_nr_phys_segments(req)); } +static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req) +{ + struct nvme_iod *iod = blk_mq_rq_to_pdu(req); + unsigned int avg_seg_size; + + avg_seg_size = DIV_ROUND_UP(blk_rq_payload_bytes(req), + blk_rq_nr_phys_segments(req)); + + if (!(dev->ctrl.sgls & ((1 << 0) | (1 << 1)))) + return false; + if (!iod->nvmeq->qid) + return false; + if (!sgl_threshold || avg_seg_size < sgl_threshold) + return false; + return true; +} + static blk_status_t nvme_init_iod(struct request *rq, struct nvme_dev *dev) { struct nvme_iod *iod = blk_mq_rq_to_pdu(rq); int nseg = blk_rq_nr_phys_segments(rq); unsigned int size = blk_rq_payload_bytes(rq); + iod->use_sgl = nvme_pci_use_sgls(dev, rq); + if (nseg > NVME_INT_PAGES || size > NVME_INT_BYTES(dev)) { size_t alloc_size = nvme_pci_iod_alloc_size(dev, size, nseg, iod->use_sgl); @@ -604,8 +623,6 @@ static blk_status_t nvme_pci_setup_prps(struct nvme_dev *dev, dma_addr_t prp_dma; int nprps, i; - iod->use_sgl = false; - length -= (page_size - offset); if (length <= 0) { iod->first_dma = 0; @@ -715,8 +732,6 @@ static blk_status_t nvme_pci_setup_sgls(struct nvme_dev *dev, int entries = iod->nents, i = 0; dma_addr_t sgl_dma; - iod->use_sgl = true; - /* setting the transfer type as SGL */ cmd->flags = NVME_CMD_SGL_METABUF; @@ -770,23 +785,6 @@ static blk_status_t nvme_pci_setup_sgls(struct nvme_dev *dev, return BLK_STS_OK; } -static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req) -{ - struct nvme_iod *iod = blk_mq_rq_to_pdu(req); - unsigned int avg_seg_size; - - avg_seg_size = DIV_ROUND_UP(blk_rq_payload_bytes(req), - blk_rq_nr_phys_segments(req)); - - if (!(dev->ctrl.sgls & ((1 << 0) | (1 << 1)))) - return false; - if (!iod->nvmeq->qid) - return false; - if (!sgl_threshold || avg_seg_size < sgl_threshold) - return false; - return true; -} - static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req, struct nvme_command *cmnd) { @@ -806,7 +804,7 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req, DMA_ATTR_NO_WARN)) goto out; - if (nvme_pci_use_sgls(dev, req)) + if (iod->use_sgl) ret = nvme_pci_setup_sgls(dev, req, &cmnd->rw); else ret = nvme_pci_setup_prps(dev, req, &cmnd->rw); diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 37af56596be6..2a0bba7f50cf 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -974,12 +974,18 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work) blk_mq_unquiesce_queue(ctrl->ctrl.admin_q); nvme_start_queues(&ctrl->ctrl); + if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) { + /* state change failure should never happen */ + WARN_ON_ONCE(1); + return; + } + nvme_rdma_reconnect_or_remove(ctrl); } static void nvme_rdma_error_recovery(struct nvme_rdma_ctrl *ctrl) { - if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) + if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RESETTING)) return; queue_work(nvme_wq, &ctrl->err_work); @@ -1753,6 +1759,12 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work) nvme_stop_ctrl(&ctrl->ctrl); nvme_rdma_shutdown_ctrl(ctrl, false); + if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) { + /* state change failure should never happen */ + WARN_ON_ONCE(1); + return; + } + ret = nvme_rdma_configure_admin_queue(ctrl, false); if (ret) goto out_fail; diff --git a/drivers/nvme/target/fcloop.c b/drivers/nvme/target/fcloop.c index 7b75d9de55ab..6a018a0bd6ce 100644 --- a/drivers/nvme/target/fcloop.c +++ b/drivers/nvme/target/fcloop.c @@ -1085,7 +1085,7 @@ fcloop_delete_target_port(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct fcloop_nport *nport = NULL, *tmpport; - struct fcloop_tport *tport; + struct fcloop_tport *tport = NULL; u64 nodename, portname; unsigned long flags; int ret; diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index 3481e69738b5..a327be1d264b 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -231,7 +231,12 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) rc = of_mdiobus_register_phy(mdio, child, addr); else rc = of_mdiobus_register_device(mdio, child, addr); - if (rc) + + if (rc == -ENODEV) + dev_err(&mdio->dev, + "MDIO device at address %d is missing.\n", + addr); + else if (rc) goto unregister; } @@ -255,7 +260,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) if (of_mdiobus_child_is_phy(child)) { rc = of_mdiobus_register_phy(mdio, child, addr); - if (rc) + if (rc && rc != -ENODEV) goto unregister; } } diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c index 0b3fb99d9b89..7390fb8ca9d1 100644 --- a/drivers/parisc/dino.c +++ b/drivers/parisc/dino.c @@ -303,7 +303,7 @@ static void dino_mask_irq(struct irq_data *d) struct dino_device *dino_dev = irq_data_get_irq_chip_data(d); int local_irq = gsc_find_local_irq(d->irq, dino_dev->global_irq, DINO_LOCAL_IRQS); - DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, d->irq); + DBG(KERN_WARNING "%s(0x%px, %d)\n", __func__, dino_dev, d->irq); /* Clear the matching bit in the IMR register */ dino_dev->imr &= ~(DINO_MASK_IRQ(local_irq)); @@ -316,7 +316,7 @@ static void dino_unmask_irq(struct irq_data *d) int local_irq = gsc_find_local_irq(d->irq, dino_dev->global_irq, DINO_LOCAL_IRQS); u32 tmp; - DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, d->irq); + DBG(KERN_WARNING "%s(0x%px, %d)\n", __func__, dino_dev, d->irq); /* ** clear pending IRQ bits @@ -396,7 +396,7 @@ ilr_again: if (mask) { if (--ilr_loop > 0) goto ilr_again; - printk(KERN_ERR "Dino 0x%p: stuck interrupt %d\n", + printk(KERN_ERR "Dino 0x%px: stuck interrupt %d\n", dino_dev->hba.base_addr, mask); return IRQ_NONE; } @@ -553,7 +553,7 @@ dino_fixup_bus(struct pci_bus *bus) struct pci_dev *dev; struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge)); - DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n", + DBG(KERN_WARNING "%s(0x%px) bus %d platform_data 0x%px\n", __func__, bus, bus->busn_res.start, bus->bridge->platform_data); @@ -854,7 +854,7 @@ static int __init dino_common_init(struct parisc_device *dev, res->flags = IORESOURCE_IO; /* do not mark it busy ! */ if (request_resource(&ioport_resource, res) < 0) { printk(KERN_ERR "%s: request I/O Port region failed " - "0x%lx/%lx (hpa 0x%p)\n", + "0x%lx/%lx (hpa 0x%px)\n", name, (unsigned long)res->start, (unsigned long)res->end, dino_dev->hba.base_addr); return 1; diff --git a/drivers/parisc/eisa_eeprom.c b/drivers/parisc/eisa_eeprom.c index 4dd9b1308128..99a80da6fd2e 100644 --- a/drivers/parisc/eisa_eeprom.c +++ b/drivers/parisc/eisa_eeprom.c @@ -106,7 +106,7 @@ static int __init eisa_eeprom_init(void) return retval; } - printk(KERN_INFO "EISA EEPROM at 0x%p\n", eisa_eeprom_addr); + printk(KERN_INFO "EISA EEPROM at 0x%px\n", eisa_eeprom_addr); return 0; } diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 791449a2370f..daa68acbc900 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -1458,5 +1458,5 @@ static void __exit acpi_wmi_exit(void) class_unregister(&wmi_bus_class); } -subsys_initcall(acpi_wmi_init); +subsys_initcall_sync(acpi_wmi_init); module_exit(acpi_wmi_exit); diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 57efbd3b053b..bd56653b9bbc 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -380,10 +380,8 @@ static int unmap_grant_pages(struct grant_map *map, int offset, int pages) } range = 0; while (range < pages) { - if (map->unmap_ops[offset+range].handle == -1) { - range--; + if (map->unmap_ops[offset+range].handle == -1) break; - } range++; } err = __unmap_grant_pages(map, offset, range); @@ -1073,8 +1071,10 @@ unlock_out: out_unlock_put: mutex_unlock(&priv->lock); out_put_map: - if (use_ptemod) + if (use_ptemod) { map->vma = NULL; + unmap_grant_pages(map, 0, map->count); + } gntdev_put_map(priv, map); return err; } diff --git a/fs/super.c b/fs/super.c index 7ff1349609e4..06bd25d90ba5 100644 --- a/fs/super.c +++ b/fs/super.c @@ -517,7 +517,11 @@ retry: hlist_add_head(&s->s_instances, &type->fs_supers); spin_unlock(&sb_lock); get_filesystem(type); - register_shrinker(&s->s_shrink); + err = register_shrinker(&s->s_shrink); + if (err) { + deactivate_locked_super(s); + s = ERR_PTR(err); + } return s; } diff --git a/include/linux/bpf.h b/include/linux/bpf.h index e55e4255a210..0b25cf87b6d6 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -43,7 +43,14 @@ struct bpf_map_ops { }; struct bpf_map { - atomic_t refcnt; + /* 1st cacheline with read-mostly members of which some + * are also accessed in fast-path (e.g. ops, max_entries). + */ + const struct bpf_map_ops *ops ____cacheline_aligned; + struct bpf_map *inner_map_meta; +#ifdef CONFIG_SECURITY + void *security; +#endif enum bpf_map_type map_type; u32 key_size; u32 value_size; @@ -52,15 +59,17 @@ struct bpf_map { u32 pages; u32 id; int numa_node; - struct user_struct *user; - const struct bpf_map_ops *ops; - struct work_struct work; + bool unpriv_array; + /* 7 bytes hole */ + + /* 2nd cacheline with misc members to avoid false sharing + * particularly with refcounting. + */ + struct user_struct *user ____cacheline_aligned; + atomic_t refcnt; atomic_t usercnt; - struct bpf_map *inner_map_meta; + struct work_struct work; char name[BPF_OBJ_NAME_LEN]; -#ifdef CONFIG_SECURITY - void *security; -#endif }; /* function argument constraints */ @@ -221,6 +230,7 @@ struct bpf_prog_aux { struct bpf_array { struct bpf_map map; u32 elem_size; + u32 index_mask; /* 'ownership' of prog_array is claimed by the first program that * is going to use this map or by the first program which FD is stored * in the map to make sure that all callers and callees have the same @@ -419,6 +429,8 @@ static inline int bpf_map_attr_numa_node(const union bpf_attr *attr) attr->numa_node : NUMA_NO_NODE; } +struct bpf_prog *bpf_prog_get_type_path(const char *name, enum bpf_prog_type type); + #else /* !CONFIG_BPF_SYSCALL */ static inline struct bpf_prog *bpf_prog_get(u32 ufd) { @@ -506,6 +518,12 @@ static inline int cpu_map_enqueue(struct bpf_cpu_map_entry *rcpu, { return 0; } + +static inline struct bpf_prog *bpf_prog_get_type_path(const char *name, + enum bpf_prog_type type) +{ + return ERR_PTR(-EOPNOTSUPP); +} #endif /* CONFIG_BPF_SYSCALL */ static inline struct bpf_prog *bpf_prog_get_type(u32 ufd, @@ -514,6 +532,8 @@ static inline struct bpf_prog *bpf_prog_get_type(u32 ufd, return bpf_prog_get_type_dev(ufd, type, false); } +bool bpf_prog_get_ok(struct bpf_prog *, enum bpf_prog_type *, bool); + int bpf_prog_offload_compile(struct bpf_prog *prog); void bpf_prog_offload_destroy(struct bpf_prog *prog); diff --git a/include/linux/completion.h b/include/linux/completion.h index 94a59ba7d422..519e94915d18 100644 --- a/include/linux/completion.h +++ b/include/linux/completion.h @@ -32,7 +32,6 @@ struct completion { #define init_completion(x) __init_completion(x) static inline void complete_acquire(struct completion *x) {} static inline void complete_release(struct completion *x) {} -static inline void complete_release_commit(struct completion *x) {} #define COMPLETION_INITIALIZER(work) \ { 0, __WAIT_QUEUE_HEAD_INITIALIZER((work).wait) } diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h index 46cb57d5eb13..1b3996ff3f16 100644 --- a/include/linux/irqflags.h +++ b/include/linux/irqflags.h @@ -27,22 +27,18 @@ # define trace_hardirq_enter() \ do { \ current->hardirq_context++; \ - crossrelease_hist_start(XHLOCK_HARD); \ } while (0) # define trace_hardirq_exit() \ do { \ current->hardirq_context--; \ - crossrelease_hist_end(XHLOCK_HARD); \ } while (0) # define lockdep_softirq_enter() \ do { \ current->softirq_context++; \ - crossrelease_hist_start(XHLOCK_SOFT); \ } while (0) # define lockdep_softirq_exit() \ do { \ current->softirq_context--; \ - crossrelease_hist_end(XHLOCK_SOFT); \ } while (0) # define INIT_TRACE_IRQFLAGS .softirqs_enabled = 1, #else diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index 2e75dc34bff5..3251d9c0d313 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -475,8 +475,6 @@ enum xhlock_context_t { #define STATIC_LOCKDEP_MAP_INIT(_name, _key) \ { .name = (_name), .key = (void *)(_key), } -static inline void crossrelease_hist_start(enum xhlock_context_t c) {} -static inline void crossrelease_hist_end(enum xhlock_context_t c) {} static inline void lockdep_invariant_state(bool force) {} static inline void lockdep_init_task(struct task_struct *task) {} static inline void lockdep_free_task(struct task_struct *task) {} diff --git a/include/linux/sh_eth.h b/include/linux/sh_eth.h index ff3642d267f7..94081e9a5010 100644 --- a/include/linux/sh_eth.h +++ b/include/linux/sh_eth.h @@ -17,7 +17,6 @@ struct sh_eth_plat_data { unsigned char mac_addr[ETH_ALEN]; unsigned no_ether_link:1; unsigned ether_link_active_low:1; - unsigned needs_init:1; }; #endif diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 2f8f93da5dc2..9a5ccf03a59b 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -966,7 +966,7 @@ void sctp_transport_burst_limited(struct sctp_transport *); void sctp_transport_burst_reset(struct sctp_transport *); unsigned long sctp_transport_timeout(struct sctp_transport *); void sctp_transport_reset(struct sctp_transport *t); -void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu); +bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu); void sctp_transport_immediate_rtx(struct sctp_transport *); void sctp_transport_dst_release(struct sctp_transport *t); void sctp_transport_dst_confirm(struct sctp_transport *t); diff --git a/include/net/vxlan.h b/include/net/vxlan.h index 13223396dc64..f96391e84a8a 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -146,7 +146,7 @@ struct vxlanhdr_gpe { np_applied:1, instance_applied:1, version:2, -reserved_flags2:2; + reserved_flags2:2; #elif defined(__BIG_ENDIAN_BITFIELD) u8 reserved_flags2:2, version:2, diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h index 3ee3bf7c8526..144de4d2f385 100644 --- a/include/uapi/linux/if_ether.h +++ b/include/uapi/linux/if_ether.h @@ -23,6 +23,7 @@ #define _UAPI_LINUX_IF_ETHER_H #include <linux/types.h> +#include <linux/libc-compat.h> /* * IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble @@ -149,11 +150,13 @@ * This is an Ethernet frame header. */ +#if __UAPI_DEF_ETHHDR struct ethhdr { unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ unsigned char h_source[ETH_ALEN]; /* source ether addr */ __be16 h_proto; /* packet type ID field */ } __attribute__((packed)); +#endif #endif /* _UAPI_LINUX_IF_ETHER_H */ diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h index 282875cf8056..fc29efaa918c 100644 --- a/include/uapi/linux/libc-compat.h +++ b/include/uapi/linux/libc-compat.h @@ -168,47 +168,106 @@ /* If we did not see any headers from any supported C libraries, * or we are being included in the kernel, then define everything - * that we need. */ + * that we need. Check for previous __UAPI_* definitions to give + * unsupported C libraries a way to opt out of any kernel definition. */ #else /* !defined(__GLIBC__) */ /* Definitions for if.h */ +#ifndef __UAPI_DEF_IF_IFCONF #define __UAPI_DEF_IF_IFCONF 1 +#endif +#ifndef __UAPI_DEF_IF_IFMAP #define __UAPI_DEF_IF_IFMAP 1 +#endif +#ifndef __UAPI_DEF_IF_IFNAMSIZ #define __UAPI_DEF_IF_IFNAMSIZ 1 +#endif +#ifndef __UAPI_DEF_IF_IFREQ #define __UAPI_DEF_IF_IFREQ 1 +#endif /* Everything up to IFF_DYNAMIC, matches net/if.h until glibc 2.23 */ +#ifndef __UAPI_DEF_IF_NET_DEVICE_FLAGS #define __UAPI_DEF_IF_NET_DEVICE_FLAGS 1 +#endif /* For the future if glibc adds IFF_LOWER_UP, IFF_DORMANT and IFF_ECHO */ +#ifndef __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO #define __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO 1 +#endif /* Definitions for in.h */ +#ifndef __UAPI_DEF_IN_ADDR #define __UAPI_DEF_IN_ADDR 1 +#endif +#ifndef __UAPI_DEF_IN_IPPROTO #define __UAPI_DEF_IN_IPPROTO 1 +#endif +#ifndef __UAPI_DEF_IN_PKTINFO #define __UAPI_DEF_IN_PKTINFO 1 +#endif +#ifndef __UAPI_DEF_IP_MREQ #define __UAPI_DEF_IP_MREQ 1 +#endif +#ifndef __UAPI_DEF_SOCKADDR_IN #define __UAPI_DEF_SOCKADDR_IN 1 +#endif +#ifndef __UAPI_DEF_IN_CLASS #define __UAPI_DEF_IN_CLASS 1 +#endif /* Definitions for in6.h */ +#ifndef __UAPI_DEF_IN6_ADDR #define __UAPI_DEF_IN6_ADDR 1 +#endif +#ifndef __UAPI_DEF_IN6_ADDR_ALT #define __UAPI_DEF_IN6_ADDR_ALT 1 +#endif +#ifndef __UAPI_DEF_SOCKADDR_IN6 #define __UAPI_DEF_SOCKADDR_IN6 1 +#endif +#ifndef __UAPI_DEF_IPV6_MREQ #define __UAPI_DEF_IPV6_MREQ 1 +#endif +#ifndef __UAPI_DEF_IPPROTO_V6 #define __UAPI_DEF_IPPROTO_V6 1 +#endif +#ifndef __UAPI_DEF_IPV6_OPTIONS #define __UAPI_DEF_IPV6_OPTIONS 1 +#endif +#ifndef __UAPI_DEF_IN6_PKTINFO #define __UAPI_DEF_IN6_PKTINFO 1 +#endif +#ifndef __UAPI_DEF_IP6_MTUINFO #define __UAPI_DEF_IP6_MTUINFO 1 +#endif /* Definitions for ipx.h */ +#ifndef __UAPI_DEF_SOCKADDR_IPX #define __UAPI_DEF_SOCKADDR_IPX 1 +#endif +#ifndef __UAPI_DEF_IPX_ROUTE_DEFINITION #define __UAPI_DEF_IPX_ROUTE_DEFINITION 1 +#endif +#ifndef __UAPI_DEF_IPX_INTERFACE_DEFINITION #define __UAPI_DEF_IPX_INTERFACE_DEFINITION 1 +#endif +#ifndef __UAPI_DEF_IPX_CONFIG_DATA #define __UAPI_DEF_IPX_CONFIG_DATA 1 +#endif +#ifndef __UAPI_DEF_IPX_ROUTE_DEF #define __UAPI_DEF_IPX_ROUTE_DEF 1 +#endif /* Definitions for xattr.h */ +#ifndef __UAPI_DEF_XATTR #define __UAPI_DEF_XATTR 1 +#endif #endif /* __GLIBC__ */ +/* Definitions for if_ether.h */ +/* allow libcs like musl to deactivate this, glibc does not implement this. */ +#ifndef __UAPI_DEF_ETHHDR +#define __UAPI_DEF_ETHHDR 1 +#endif + #endif /* _UAPI_LIBC_COMPAT_H */ diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h index 3fea7709a441..57ccfb32e87f 100644 --- a/include/uapi/linux/netfilter/nf_conntrack_common.h +++ b/include/uapi/linux/netfilter/nf_conntrack_common.h @@ -36,7 +36,7 @@ enum ip_conntrack_info { #define NF_CT_STATE_INVALID_BIT (1 << 0) #define NF_CT_STATE_BIT(ctinfo) (1 << ((ctinfo) % IP_CT_IS_REPLY + 1)) -#define NF_CT_STATE_UNTRACKED_BIT (1 << (IP_CT_UNTRACKED + 1)) +#define NF_CT_STATE_UNTRACKED_BIT (1 << 6) /* Bitset representing status of connection. */ enum ip_conntrack_status { diff --git a/init/Kconfig b/init/Kconfig index c1221332e128..a9a2e2c86671 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1397,6 +1397,13 @@ config BPF_SYSCALL Enable the bpf() system call that allows to manipulate eBPF programs and maps via file descriptors. +config BPF_JIT_ALWAYS_ON + bool "Permanently enable BPF JIT and remove BPF interpreter" + depends on BPF_SYSCALL && HAVE_EBPF_JIT && BPF_JIT + help + Enables BPF JIT and removes BPF interpreter to avoid + speculative execution of BPF instructions by the interpreter + config USERFAULTFD bool "Enable userfaultfd() system call" select ANON_INODES diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c index 7c25426d3cf5..aaa319848e7d 100644 --- a/kernel/bpf/arraymap.c +++ b/kernel/bpf/arraymap.c @@ -53,9 +53,10 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr) { bool percpu = attr->map_type == BPF_MAP_TYPE_PERCPU_ARRAY; int numa_node = bpf_map_attr_numa_node(attr); + u32 elem_size, index_mask, max_entries; + bool unpriv = !capable(CAP_SYS_ADMIN); struct bpf_array *array; u64 array_size; - u32 elem_size; /* check sanity of attributes */ if (attr->max_entries == 0 || attr->key_size != 4 || @@ -72,11 +73,20 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr) elem_size = round_up(attr->value_size, 8); + max_entries = attr->max_entries; + index_mask = roundup_pow_of_two(max_entries) - 1; + + if (unpriv) + /* round up array size to nearest power of 2, + * since cpu will speculate within index_mask limits + */ + max_entries = index_mask + 1; + array_size = sizeof(*array); if (percpu) - array_size += (u64) attr->max_entries * sizeof(void *); + array_size += (u64) max_entries * sizeof(void *); else - array_size += (u64) attr->max_entries * elem_size; + array_size += (u64) max_entries * elem_size; /* make sure there is no u32 overflow later in round_up() */ if (array_size >= U32_MAX - PAGE_SIZE) @@ -86,6 +96,8 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr) array = bpf_map_area_alloc(array_size, numa_node); if (!array) return ERR_PTR(-ENOMEM); + array->index_mask = index_mask; + array->map.unpriv_array = unpriv; /* copy mandatory map attributes */ array->map.map_type = attr->map_type; @@ -121,12 +133,13 @@ static void *array_map_lookup_elem(struct bpf_map *map, void *key) if (unlikely(index >= array->map.max_entries)) return NULL; - return array->value + array->elem_size * index; + return array->value + array->elem_size * (index & array->index_mask); } /* emit BPF instructions equivalent to C code of array_map_lookup_elem() */ static u32 array_map_gen_lookup(struct bpf_map *map, struct bpf_insn *insn_buf) { + struct bpf_array *array = container_of(map, struct bpf_array, map); struct bpf_insn *insn = insn_buf; u32 elem_size = round_up(map->value_size, 8); const int ret = BPF_REG_0; @@ -135,7 +148,12 @@ static u32 array_map_gen_lookup(struct bpf_map *map, struct bpf_insn *insn_buf) *insn++ = BPF_ALU64_IMM(BPF_ADD, map_ptr, offsetof(struct bpf_array, value)); *insn++ = BPF_LDX_MEM(BPF_W, ret, index, 0); - *insn++ = BPF_JMP_IMM(BPF_JGE, ret, map->max_entries, 3); + if (map->unpriv_array) { + *insn++ = BPF_JMP_IMM(BPF_JGE, ret, map->max_entries, 4); + *insn++ = BPF_ALU32_IMM(BPF_AND, ret, array->index_mask); + } else { + *insn++ = BPF_JMP_IMM(BPF_JGE, ret, map->max_entries, 3); + } if (is_power_of_2(elem_size)) { *insn++ = BPF_ALU64_IMM(BPF_LSH, ret, ilog2(elem_size)); @@ -157,7 +175,7 @@ static void *percpu_array_map_lookup_elem(struct bpf_map *map, void *key) if (unlikely(index >= array->map.max_entries)) return NULL; - return this_cpu_ptr(array->pptrs[index]); + return this_cpu_ptr(array->pptrs[index & array->index_mask]); } int bpf_percpu_array_copy(struct bpf_map *map, void *key, void *value) @@ -177,7 +195,7 @@ int bpf_percpu_array_copy(struct bpf_map *map, void *key, void *value) */ size = round_up(map->value_size, 8); rcu_read_lock(); - pptr = array->pptrs[index]; + pptr = array->pptrs[index & array->index_mask]; for_each_possible_cpu(cpu) { bpf_long_memcpy(value + off, per_cpu_ptr(pptr, cpu), size); off += size; @@ -225,10 +243,11 @@ static int array_map_update_elem(struct bpf_map *map, void *key, void *value, return -EEXIST; if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY) - memcpy(this_cpu_ptr(array->pptrs[index]), + memcpy(this_cpu_ptr(array->pptrs[index & array->index_mask]), value, map->value_size); else - memcpy(array->value + array->elem_size * index, + memcpy(array->value + + array->elem_size * (index & array->index_mask), value, map->value_size); return 0; } @@ -262,7 +281,7 @@ int bpf_percpu_array_update(struct bpf_map *map, void *key, void *value, */ size = round_up(map->value_size, 8); rcu_read_lock(); - pptr = array->pptrs[index]; + pptr = array->pptrs[index & array->index_mask]; for_each_possible_cpu(cpu) { bpf_long_memcpy(per_cpu_ptr(pptr, cpu), value + off, size); off += size; @@ -613,6 +632,7 @@ static void *array_of_map_lookup_elem(struct bpf_map *map, void *key) static u32 array_of_map_gen_lookup(struct bpf_map *map, struct bpf_insn *insn_buf) { + struct bpf_array *array = container_of(map, struct bpf_array, map); u32 elem_size = round_up(map->value_size, 8); struct bpf_insn *insn = insn_buf; const int ret = BPF_REG_0; @@ -621,7 +641,12 @@ static u32 array_of_map_gen_lookup(struct bpf_map *map, *insn++ = BPF_ALU64_IMM(BPF_ADD, map_ptr, offsetof(struct bpf_array, value)); *insn++ = BPF_LDX_MEM(BPF_W, ret, index, 0); - *insn++ = BPF_JMP_IMM(BPF_JGE, ret, map->max_entries, 5); + if (map->unpriv_array) { + *insn++ = BPF_JMP_IMM(BPF_JGE, ret, map->max_entries, 6); + *insn++ = BPF_ALU32_IMM(BPF_AND, ret, array->index_mask); + } else { + *insn++ = BPF_JMP_IMM(BPF_JGE, ret, map->max_entries, 5); + } if (is_power_of_2(elem_size)) *insn++ = BPF_ALU64_IMM(BPF_LSH, ret, ilog2(elem_size)); else diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 86b50aa26ee8..51ec2dda7f08 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -767,6 +767,7 @@ noinline u64 __bpf_call_base(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5) } EXPORT_SYMBOL_GPL(__bpf_call_base); +#ifndef CONFIG_BPF_JIT_ALWAYS_ON /** * __bpf_prog_run - run eBPF program on a given context * @ctx: is the data we are operating on @@ -1317,6 +1318,14 @@ EVAL6(PROG_NAME_LIST, 224, 256, 288, 320, 352, 384) EVAL4(PROG_NAME_LIST, 416, 448, 480, 512) }; +#else +static unsigned int __bpf_prog_ret0(const void *ctx, + const struct bpf_insn *insn) +{ + return 0; +} +#endif + bool bpf_prog_array_compatible(struct bpf_array *array, const struct bpf_prog *fp) { @@ -1364,9 +1373,13 @@ static int bpf_check_tail_call(const struct bpf_prog *fp) */ struct bpf_prog *bpf_prog_select_runtime(struct bpf_prog *fp, int *err) { +#ifndef CONFIG_BPF_JIT_ALWAYS_ON u32 stack_depth = max_t(u32, fp->aux->stack_depth, 1); fp->bpf_func = interpreters[(round_up(stack_depth, 32) / 32) - 1]; +#else + fp->bpf_func = __bpf_prog_ret0; +#endif /* eBPF JITs can rewrite the program in case constant * blinding is active. However, in case of error during @@ -1376,6 +1389,12 @@ struct bpf_prog *bpf_prog_select_runtime(struct bpf_prog *fp, int *err) */ if (!bpf_prog_is_dev_bound(fp->aux)) { fp = bpf_int_jit_compile(fp); +#ifdef CONFIG_BPF_JIT_ALWAYS_ON + if (!fp->jited) { + *err = -ENOTSUPP; + return fp; + } +#endif } else { *err = bpf_prog_offload_compile(fp); if (*err) diff --git a/kernel/bpf/inode.c b/kernel/bpf/inode.c index 01aaef1a77c5..5bb5e49ef4c3 100644 --- a/kernel/bpf/inode.c +++ b/kernel/bpf/inode.c @@ -368,7 +368,45 @@ out: putname(pname); return ret; } -EXPORT_SYMBOL_GPL(bpf_obj_get_user); + +static struct bpf_prog *__get_prog_inode(struct inode *inode, enum bpf_prog_type type) +{ + struct bpf_prog *prog; + int ret = inode_permission(inode, MAY_READ | MAY_WRITE); + if (ret) + return ERR_PTR(ret); + + if (inode->i_op == &bpf_map_iops) + return ERR_PTR(-EINVAL); + if (inode->i_op != &bpf_prog_iops) + return ERR_PTR(-EACCES); + + prog = inode->i_private; + + ret = security_bpf_prog(prog); + if (ret < 0) + return ERR_PTR(ret); + + if (!bpf_prog_get_ok(prog, &type, false)) + return ERR_PTR(-EINVAL); + + return bpf_prog_inc(prog); +} + +struct bpf_prog *bpf_prog_get_type_path(const char *name, enum bpf_prog_type type) +{ + struct bpf_prog *prog; + struct path path; + int ret = kern_path(name, LOOKUP_FOLLOW, &path); + if (ret) + return ERR_PTR(ret); + prog = __get_prog_inode(d_backing_inode(path.dentry), type); + if (!IS_ERR(prog)) + touch_atime(&path); + path_put(&path); + return prog; +} +EXPORT_SYMBOL(bpf_prog_get_type_path); static void bpf_evict_inode(struct inode *inode) { diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index 5ee2e41893d9..1712d319c2d8 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -591,8 +591,15 @@ static void sock_map_free(struct bpf_map *map) write_lock_bh(&sock->sk_callback_lock); psock = smap_psock_sk(sock); - smap_list_remove(psock, &stab->sock_map[i]); - smap_release_sock(psock, sock); + /* This check handles a racing sock event that can get the + * sk_callback_lock before this case but after xchg happens + * causing the refcnt to hit zero and sock user data (psock) + * to be null and queued for garbage collection. + */ + if (likely(psock)) { + smap_list_remove(psock, &stab->sock_map[i]); + smap_release_sock(psock, sock); + } write_unlock_bh(&sock->sk_callback_lock); } rcu_read_unlock(); diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 2c4cfeaa8d5e..5cb783fc8224 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -1057,7 +1057,7 @@ struct bpf_prog *bpf_prog_inc_not_zero(struct bpf_prog *prog) } EXPORT_SYMBOL_GPL(bpf_prog_inc_not_zero); -static bool bpf_prog_get_ok(struct bpf_prog *prog, +bool bpf_prog_get_ok(struct bpf_prog *prog, enum bpf_prog_type *attach_type, bool attach_drv) { /* not an attachment, just a refcount inc, always allow */ diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 04b24876cd23..b414d6b2d470 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -1729,6 +1729,13 @@ static int check_call(struct bpf_verifier_env *env, int func_id, int insn_idx) err = check_func_arg(env, BPF_REG_2, fn->arg2_type, &meta); if (err) return err; + if (func_id == BPF_FUNC_tail_call) { + if (meta.map_ptr == NULL) { + verbose(env, "verifier bug\n"); + return -EINVAL; + } + env->insn_aux_data[insn_idx].map_ptr = meta.map_ptr; + } err = check_func_arg(env, BPF_REG_3, fn->arg3_type, &meta); if (err) return err; @@ -4456,6 +4463,35 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env) */ insn->imm = 0; insn->code = BPF_JMP | BPF_TAIL_CALL; + + /* instead of changing every JIT dealing with tail_call + * emit two extra insns: + * if (index >= max_entries) goto out; + * index &= array->index_mask; + * to avoid out-of-bounds cpu speculation + */ + map_ptr = env->insn_aux_data[i + delta].map_ptr; + if (map_ptr == BPF_MAP_PTR_POISON) { + verbose(env, "tail_call obusing map_ptr\n"); + return -EINVAL; + } + if (!map_ptr->unpriv_array) + continue; + insn_buf[0] = BPF_JMP_IMM(BPF_JGE, BPF_REG_3, + map_ptr->max_entries, 2); + insn_buf[1] = BPF_ALU32_IMM(BPF_AND, BPF_REG_3, + container_of(map_ptr, + struct bpf_array, + map)->index_mask); + insn_buf[2] = *insn; + cnt = 3; + new_prog = bpf_patch_insn_data(env, i + delta, insn_buf, cnt); + if (!new_prog) + return -ENOMEM; + + delta += cnt - 1; + env->prog = prog = new_prog; + insn = new_prog->insnsi + i + delta; continue; } diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c index 024085daab1a..a2c05d2476ac 100644 --- a/kernel/cgroup/cgroup-v1.c +++ b/kernel/cgroup/cgroup-v1.c @@ -123,7 +123,11 @@ int cgroup_transfer_tasks(struct cgroup *to, struct cgroup *from) */ do { css_task_iter_start(&from->self, 0, &it); - task = css_task_iter_next(&it); + + do { + task = css_task_iter_next(&it); + } while (task && (task->flags & PF_EXITING)); + if (task) get_task_struct(task); css_task_iter_end(&it); diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 0b1ffe147f24..2cf06c274e4c 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -1397,7 +1397,7 @@ static char *cgroup_file_name(struct cgroup *cgrp, const struct cftype *cft, cgroup_on_dfl(cgrp) ? ss->name : ss->legacy_name, cft->name); else - strncpy(buf, cft->name, CGROUP_FILE_NAME_MAX); + strlcpy(buf, cft->name, CGROUP_FILE_NAME_MAX); return buf; } @@ -1864,9 +1864,9 @@ void init_cgroup_root(struct cgroup_root *root, struct cgroup_sb_opts *opts) root->flags = opts->flags; if (opts->release_agent) - strcpy(root->release_agent_path, opts->release_agent); + strlcpy(root->release_agent_path, opts->release_agent, PATH_MAX); if (opts->name) - strcpy(root->name, opts->name); + strlcpy(root->name, opts->name, MAX_CGROUP_ROOT_NAMELEN); if (opts->cpuset_clone_children) set_bit(CGRP_CPUSET_CLONE_CHILDREN, &root->cgrp.flags); } @@ -4125,26 +4125,24 @@ static void css_task_iter_advance_css_set(struct css_task_iter *it) static void css_task_iter_advance(struct css_task_iter *it) { - struct list_head *l = it->task_pos; + struct list_head *next; lockdep_assert_held(&css_set_lock); - WARN_ON_ONCE(!l); - repeat: /* * Advance iterator to find next entry. cset->tasks is consumed * first and then ->mg_tasks. After ->mg_tasks, we move onto the * next cset. */ - l = l->next; + next = it->task_pos->next; - if (l == it->tasks_head) - l = it->mg_tasks_head->next; + if (next == it->tasks_head) + next = it->mg_tasks_head->next; - if (l == it->mg_tasks_head) + if (next == it->mg_tasks_head) css_task_iter_advance_css_set(it); else - it->task_pos = l; + it->task_pos = next; /* if PROCS, skip over tasks which aren't group leaders */ if ((it->flags & CSS_TASK_ITER_PROCS) && it->task_pos && diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c index 2ddaec40956f..0926aef10dad 100644 --- a/kernel/sched/completion.c +++ b/kernel/sched/completion.c @@ -34,11 +34,6 @@ void complete(struct completion *x) spin_lock_irqsave(&x->wait.lock, flags); - /* - * Perform commit of crossrelease here. - */ - complete_release_commit(x); - if (x->done != UINT_MAX) x->done++; __wake_up_locked(&x->wait, TASK_NORMAL, 1); diff --git a/lib/test_bpf.c b/lib/test_bpf.c index 9e9748089270..f369889e521d 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -6250,9 +6250,8 @@ static struct bpf_prog *generate_filter(int which, int *err) return NULL; } } - /* We don't expect to fail. */ if (*err) { - pr_cont("FAIL to attach err=%d len=%d\n", + pr_cont("FAIL to prog_create err=%d len=%d\n", *err, fprog.len); return NULL; } @@ -6276,6 +6275,10 @@ static struct bpf_prog *generate_filter(int which, int *err) * checks. */ fp = bpf_prog_select_runtime(fp, err); + if (*err) { + pr_cont("FAIL to select_runtime err=%d\n", *err); + return NULL; + } break; } @@ -6461,8 +6464,8 @@ static __init int test_bpf(void) pass_cnt++; continue; } - - return err; + err_cnt++; + continue; } pr_cont("jited:%u ", fp->jited); diff --git a/mm/vmscan.c b/mm/vmscan.c index c02c850ea349..47d5ced51f2d 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -297,10 +297,13 @@ EXPORT_SYMBOL(register_shrinker); */ void unregister_shrinker(struct shrinker *shrinker) { + if (!shrinker->nr_deferred) + return; down_write(&shrinker_rwsem); list_del(&shrinker->list); up_write(&shrinker_rwsem); kfree(shrinker->nr_deferred); + shrinker->nr_deferred = NULL; } EXPORT_SYMBOL(unregister_shrinker); diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 8dfdd94e430f..bad01b14a4ad 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -111,12 +111,7 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) vlan_gvrp_uninit_applicant(real_dev); } - /* Take it out of our own structures, but be sure to interlock with - * HW accelerating devices or SW vlan input packet processing if - * VLAN is not 0 (leave it there for 802.1p). - */ - if (vlan_id) - vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id); + vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id); /* Get rid of the vlan's reference to real_dev */ dev_put(real_dev); diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c index 2d38b6e34203..e0adcd123f48 100644 --- a/net/caif/caif_dev.c +++ b/net/caif/caif_dev.c @@ -334,9 +334,8 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev, mutex_lock(&caifdevs->lock); list_add_rcu(&caifd->list, &caifdevs->list); - strncpy(caifd->layer.name, dev->name, - sizeof(caifd->layer.name) - 1); - caifd->layer.name[sizeof(caifd->layer.name) - 1] = 0; + strlcpy(caifd->layer.name, dev->name, + sizeof(caifd->layer.name)); caifd->layer.transmit = transmit; cfcnfg_add_phy_layer(cfg, dev, diff --git a/net/caif/caif_usb.c b/net/caif/caif_usb.c index 5cd44f001f64..1a082a946045 100644 --- a/net/caif/caif_usb.c +++ b/net/caif/caif_usb.c @@ -176,9 +176,7 @@ static int cfusbl_device_notify(struct notifier_block *me, unsigned long what, dev_add_pack(&caif_usb_type); pack_added = true; - strncpy(layer->name, dev->name, - sizeof(layer->name) - 1); - layer->name[sizeof(layer->name) - 1] = 0; + strlcpy(layer->name, dev->name, sizeof(layer->name)); return 0; } diff --git a/net/caif/cfcnfg.c b/net/caif/cfcnfg.c index 273cb07f57d8..8f00bea093b9 100644 --- a/net/caif/cfcnfg.c +++ b/net/caif/cfcnfg.c @@ -268,17 +268,15 @@ static int caif_connect_req_to_link_param(struct cfcnfg *cnfg, case CAIFPROTO_RFM: l->linktype = CFCTRL_SRV_RFM; l->u.datagram.connid = s->sockaddr.u.rfm.connection_id; - strncpy(l->u.rfm.volume, s->sockaddr.u.rfm.volume, - sizeof(l->u.rfm.volume)-1); - l->u.rfm.volume[sizeof(l->u.rfm.volume)-1] = 0; + strlcpy(l->u.rfm.volume, s->sockaddr.u.rfm.volume, + sizeof(l->u.rfm.volume)); break; case CAIFPROTO_UTIL: l->linktype = CFCTRL_SRV_UTIL; l->endpoint = 0x00; l->chtype = 0x00; - strncpy(l->u.utility.name, s->sockaddr.u.util.service, - sizeof(l->u.utility.name)-1); - l->u.utility.name[sizeof(l->u.utility.name)-1] = 0; + strlcpy(l->u.utility.name, s->sockaddr.u.util.service, + sizeof(l->u.utility.name)); caif_assert(sizeof(l->u.utility.name) > 10); l->u.utility.paramlen = s->param.size; if (l->u.utility.paramlen > sizeof(l->u.utility.params)) diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c index f5afda1abc76..655ed7032150 100644 --- a/net/caif/cfctrl.c +++ b/net/caif/cfctrl.c @@ -258,8 +258,8 @@ int cfctrl_linkup_request(struct cflayer *layer, tmp16 = cpu_to_le16(param->u.utility.fifosize_bufs); cfpkt_add_body(pkt, &tmp16, 2); memset(utility_name, 0, sizeof(utility_name)); - strncpy(utility_name, param->u.utility.name, - UTILITY_NAME_LENGTH - 1); + strlcpy(utility_name, param->u.utility.name, + UTILITY_NAME_LENGTH); cfpkt_add_body(pkt, utility_name, UTILITY_NAME_LENGTH); tmp8 = param->u.utility.paramlen; cfpkt_add_body(pkt, &tmp8, 1); diff --git a/net/core/dev.c b/net/core/dev.c index 01ee854454a8..0e0ba36eeac9 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1146,7 +1146,19 @@ EXPORT_SYMBOL(dev_alloc_name); int dev_get_valid_name(struct net *net, struct net_device *dev, const char *name) { - return dev_alloc_name_ns(net, dev, name); + BUG_ON(!net); + + if (!dev_valid_name(name)) + return -EINVAL; + + if (strchr(name, '%')) + return dev_alloc_name_ns(net, dev, name); + else if (__dev_get_by_name(net, name)) + return -EEXIST; + else if (dev->name != name) + strlcpy(dev->name, name, IFNAMSIZ); + + return 0; } EXPORT_SYMBOL(dev_get_valid_name); diff --git a/net/core/ethtool.c b/net/core/ethtool.c index f8fcf450a36e..8225416911ae 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -770,15 +770,6 @@ static int ethtool_set_link_ksettings(struct net_device *dev, return dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings); } -static void -warn_incomplete_ethtool_legacy_settings_conversion(const char *details) -{ - char name[sizeof(current->comm)]; - - pr_info_once("warning: `%s' uses legacy ethtool link settings API, %s\n", - get_task_comm(name, current), details); -} - /* Query device for its ethtool_cmd settings. * * Backward compatibility note: for compatibility with legacy ethtool, @@ -805,10 +796,8 @@ static int ethtool_get_settings(struct net_device *dev, void __user *useraddr) &link_ksettings); if (err < 0) return err; - if (!convert_link_ksettings_to_legacy_settings(&cmd, - &link_ksettings)) - warn_incomplete_ethtool_legacy_settings_conversion( - "link modes are only partially reported"); + convert_link_ksettings_to_legacy_settings(&cmd, + &link_ksettings); /* send a sensible cmd tag back to user */ cmd.cmd = ETHTOOL_GSET; diff --git a/net/core/filter.c b/net/core/filter.c index 6a85e67fafce..d339ef170df6 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -1054,11 +1054,9 @@ static struct bpf_prog *bpf_migrate_filter(struct bpf_prog *fp) */ goto out_err_free; - /* We are guaranteed to never error here with cBPF to eBPF - * transitions, since there's no issue with type compatibility - * checks on program arrays. - */ fp = bpf_prog_select_runtime(fp, &err); + if (err) + goto out_err_free; kfree(old_prog); return fp; diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index dabba2a91fc8..778d7f03404a 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1681,18 +1681,18 @@ static bool link_dump_filtered(struct net_device *dev, return false; } -static struct net *get_target_net(struct sk_buff *skb, int netnsid) +static struct net *get_target_net(struct sock *sk, int netnsid) { struct net *net; - net = get_net_ns_by_id(sock_net(skb->sk), netnsid); + net = get_net_ns_by_id(sock_net(sk), netnsid); if (!net) return ERR_PTR(-EINVAL); /* For now, the caller is required to have CAP_NET_ADMIN in * the user namespace owning the target net ns. */ - if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { + if (!sk_ns_capable(sk, net->user_ns, CAP_NET_ADMIN)) { put_net(net); return ERR_PTR(-EACCES); } @@ -1733,7 +1733,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) ifla_policy, NULL) >= 0) { if (tb[IFLA_IF_NETNSID]) { netnsid = nla_get_s32(tb[IFLA_IF_NETNSID]); - tgt_net = get_target_net(skb, netnsid); + tgt_net = get_target_net(skb->sk, netnsid); if (IS_ERR(tgt_net)) { tgt_net = net; netnsid = -1; @@ -2883,7 +2883,7 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr *nlh, if (tb[IFLA_IF_NETNSID]) { netnsid = nla_get_s32(tb[IFLA_IF_NETNSID]); - tgt_net = get_target_net(skb, netnsid); + tgt_net = get_target_net(NETLINK_CB(skb).sk, netnsid); if (IS_ERR(tgt_net)) return PTR_ERR(tgt_net); } diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c index 217f4e3b82f6..146b50e30659 100644 --- a/net/core/sock_diag.c +++ b/net/core/sock_diag.c @@ -288,7 +288,7 @@ static int sock_diag_bind(struct net *net, int group) case SKNLGRP_INET6_UDP_DESTROY: if (!sock_diag_handlers[AF_INET6]) request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK, - NETLINK_SOCK_DIAG, AF_INET); + NETLINK_SOCK_DIAG, AF_INET6); break; } return 0; diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index cbc3dde4cfcc..a47ad6cd41c0 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -325,7 +325,13 @@ static struct ctl_table net_core_table[] = { .data = &bpf_jit_enable, .maxlen = sizeof(int), .mode = 0644, +#ifndef CONFIG_BPF_JIT_ALWAYS_ON .proc_handler = proc_dointvec +#else + .proc_handler = proc_dointvec_minmax, + .extra1 = &one, + .extra2 = &one, +#endif }, # ifdef CONFIG_HAVE_EBPF_JIT { diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 125c1eab3eaa..5e570aa9e43b 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -520,9 +520,11 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) goto out; /* hdrincl should be READ_ONCE(inet->hdrincl) - * but READ_ONCE() doesn't work with bit fields + * but READ_ONCE() doesn't work with bit fields. + * Doing this indirectly yields the same result. */ hdrincl = inet->hdrincl; + hdrincl = READ_ONCE(hdrincl); /* * Check the flags. */ diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 83bd75713535..bc68eb661970 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -925,6 +925,15 @@ static void ipv6_push_rthdr4(struct sk_buff *skb, u8 *proto, sr_phdr->segments[0] = **addr_p; *addr_p = &sr_ihdr->segments[sr_ihdr->segments_left]; + if (sr_ihdr->hdrlen > hops * 2) { + int tlvs_offset, tlvs_length; + + tlvs_offset = (1 + hops * 2) << 3; + tlvs_length = (sr_ihdr->hdrlen - hops * 2) << 3; + memcpy((char *)sr_phdr + tlvs_offset, + (char *)sr_ihdr + tlvs_offset, tlvs_length); + } + #ifdef CONFIG_IPV6_SEG6_HMAC if (sr_has_hmac(sr_phdr)) { struct net *net = NULL; diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index f5285f4e1d08..9dcc3924a975 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -640,6 +640,11 @@ static struct fib6_node *fib6_add_1(struct net *net, if (!(fn->fn_flags & RTN_RTINFO)) { RCU_INIT_POINTER(fn->leaf, NULL); rt6_release(leaf); + /* remove null_entry in the root node */ + } else if (fn->fn_flags & RTN_TL_ROOT && + rcu_access_pointer(fn->leaf) == + net->ipv6.ip6_null_entry) { + RCU_INIT_POINTER(fn->leaf, NULL); } return fn; @@ -1241,23 +1246,28 @@ out: * If fib6_add_1 has cleared the old leaf pointer in the * super-tree leaf node we have to find a new one for it. */ - struct rt6_info *pn_leaf = rcu_dereference_protected(pn->leaf, - lockdep_is_held(&table->tb6_lock)); - if (pn != fn && pn_leaf == rt) { - pn_leaf = NULL; - RCU_INIT_POINTER(pn->leaf, NULL); - atomic_dec(&rt->rt6i_ref); - } - if (pn != fn && !pn_leaf && !(pn->fn_flags & RTN_RTINFO)) { - pn_leaf = fib6_find_prefix(info->nl_net, table, pn); -#if RT6_DEBUG >= 2 - if (!pn_leaf) { - WARN_ON(!pn_leaf); - pn_leaf = info->nl_net->ipv6.ip6_null_entry; + if (pn != fn) { + struct rt6_info *pn_leaf = + rcu_dereference_protected(pn->leaf, + lockdep_is_held(&table->tb6_lock)); + if (pn_leaf == rt) { + pn_leaf = NULL; + RCU_INIT_POINTER(pn->leaf, NULL); + atomic_dec(&rt->rt6i_ref); } + if (!pn_leaf && !(pn->fn_flags & RTN_RTINFO)) { + pn_leaf = fib6_find_prefix(info->nl_net, table, + pn); +#if RT6_DEBUG >= 2 + if (!pn_leaf) { + WARN_ON(!pn_leaf); + pn_leaf = + info->nl_net->ipv6.ip6_null_entry; + } #endif - atomic_inc(&pn_leaf->rt6i_ref); - rcu_assign_pointer(pn->leaf, pn_leaf); + atomic_inc(&pn_leaf->rt6i_ref); + rcu_assign_pointer(pn->leaf, pn_leaf); + } } #endif goto failure; @@ -1265,13 +1275,17 @@ out: return err; failure: - /* fn->leaf could be NULL if fn is an intermediate node and we - * failed to add the new route to it in both subtree creation - * failure and fib6_add_rt2node() failure case. - * In both cases, fib6_repair_tree() should be called to fix - * fn->leaf. + /* fn->leaf could be NULL and fib6_repair_tree() needs to be called if: + * 1. fn is an intermediate node and we failed to add the new + * route to it in both subtree creation failure and fib6_add_rt2node() + * failure case. + * 2. fn is the root node in the table and we fail to add the first + * default route to it. */ - if (fn && !(fn->fn_flags & (RTN_RTINFO|RTN_ROOT))) + if (fn && + (!(fn->fn_flags & (RTN_RTINFO|RTN_ROOT)) || + (fn->fn_flags & RTN_TL_ROOT && + !rcu_access_pointer(fn->leaf)))) fib6_repair_tree(info->nl_net, table, fn); /* Always release dst as dst->__refcnt is guaranteed * to be taken before entering this function @@ -1526,6 +1540,12 @@ static struct fib6_node *fib6_repair_tree(struct net *net, struct fib6_walker *w; int iter = 0; + /* Set fn->leaf to null_entry for root node. */ + if (fn->fn_flags & RTN_TL_ROOT) { + rcu_assign_pointer(fn->leaf, net->ipv6.ip6_null_entry); + return fn; + } + for (;;) { struct fib6_node *fn_r = rcu_dereference_protected(fn->right, lockdep_is_held(&table->tb6_lock)); @@ -1680,10 +1700,15 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn, } read_unlock(&net->ipv6.fib6_walker_lock); - /* If it was last route, expunge its radix tree node */ + /* If it was last route, call fib6_repair_tree() to: + * 1. For root node, put back null_entry as how the table was created. + * 2. For other nodes, expunge its radix tree node. + */ if (!rcu_access_pointer(fn->leaf)) { - fn->fn_flags &= ~RTN_RTINFO; - net->ipv6.rt6_stats->fib_route_nodes--; + if (!(fn->fn_flags & RTN_TL_ROOT)) { + fn->fn_flags &= ~RTN_RTINFO; + net->ipv6.rt6_stats->fib_route_nodes--; + } fn = fib6_repair_tree(net, table, fn); } diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index f7dd51c42314..688ba5f7516b 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1735,9 +1735,10 @@ struct sk_buff *ip6_make_skb(struct sock *sk, cork.base.opt = NULL; v6_cork.opt = NULL; err = ip6_setup_cork(sk, &cork, &v6_cork, ipc6, rt, fl6); - if (err) + if (err) { + ip6_cork_release(&cork, &v6_cork); return ERR_PTR(err); - + } if (ipc6->dontfrag < 0) ipc6->dontfrag = inet6_sk(sk)->dontfrag; diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 931c38f6ff4a..9a7cf355bc8c 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1074,10 +1074,11 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield, memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr)); neigh_release(neigh); } - } else if (!(t->parms.flags & - (IP6_TNL_F_USE_ORIG_TCLASS | IP6_TNL_F_USE_ORIG_FWMARK))) { - /* enable the cache only only if the routing decision does - * not depend on the current inner header value + } else if (t->parms.proto != 0 && !(t->parms.flags & + (IP6_TNL_F_USE_ORIG_TCLASS | + IP6_TNL_F_USE_ORIG_FWMARK))) { + /* enable the cache only if neither the outer protocol nor the + * routing decision depends on the current inner header value */ use_cache = true; } @@ -1676,11 +1677,11 @@ int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu) { struct ip6_tnl *tnl = netdev_priv(dev); - if (tnl->parms.proto == IPPROTO_IPIP) { - if (new_mtu < ETH_MIN_MTU) + if (tnl->parms.proto == IPPROTO_IPV6) { + if (new_mtu < IPV6_MIN_MTU) return -EINVAL; } else { - if (new_mtu < IPV6_MIN_MTU) + if (new_mtu < ETH_MIN_MTU) return -EINVAL; } if (new_mtu > 0xFFF8 - dev->hard_header_len) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 70e9d2ca8bbe..4daafb07602f 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3632,6 +3632,8 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx) } return true; case NL80211_IFTYPE_MESH_POINT: + if (ether_addr_equal(sdata->vif.addr, hdr->addr2)) + return false; if (multicast) return true; return ether_addr_equal(sdata->vif.addr, hdr->addr1); diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 10798b357481..07bd4138c84e 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -2072,7 +2072,7 @@ static int nf_tables_dump_rules(struct sk_buff *skb, continue; list_for_each_entry_rcu(chain, &table->chains, list) { - if (ctx && ctx->chain[0] && + if (ctx && ctx->chain && strcmp(ctx->chain, chain->name) != 0) continue; @@ -4665,8 +4665,10 @@ static int nf_tables_dump_obj_done(struct netlink_callback *cb) { struct nft_obj_filter *filter = cb->data; - kfree(filter->table); - kfree(filter); + if (filter) { + kfree(filter->table); + kfree(filter); + } return 0; } diff --git a/net/netfilter/xt_bpf.c b/net/netfilter/xt_bpf.c index 1f7fbd3c7e5a..06b090d8e901 100644 --- a/net/netfilter/xt_bpf.c +++ b/net/netfilter/xt_bpf.c @@ -55,21 +55,11 @@ static int __bpf_mt_check_fd(int fd, struct bpf_prog **ret) static int __bpf_mt_check_path(const char *path, struct bpf_prog **ret) { - mm_segment_t oldfs = get_fs(); - int retval, fd; - if (strnlen(path, XT_BPF_PATH_MAX) == XT_BPF_PATH_MAX) return -EINVAL; - set_fs(KERNEL_DS); - fd = bpf_obj_get_user(path, 0); - set_fs(oldfs); - if (fd < 0) - return fd; - - retval = __bpf_mt_check_fd(fd, ret); - sys_close(fd); - return retval; + *ret = bpf_prog_get_type_path(path, BPF_PROG_TYPE_SOCKET_FILTER); + return PTR_ERR_OR_ZERO(*ret); } static int bpf_mt_check(const struct xt_mtchk_param *par) diff --git a/net/rds/rdma.c b/net/rds/rdma.c index bc2f1e0977d6..634cfcb7bba6 100644 --- a/net/rds/rdma.c +++ b/net/rds/rdma.c @@ -525,6 +525,9 @@ int rds_rdma_extra_size(struct rds_rdma_args *args) local_vec = (struct rds_iovec __user *)(unsigned long) args->local_vec_addr; + if (args->nr_local == 0) + return -EINVAL; + /* figure out the number of pages in the vector */ for (i = 0; i < args->nr_local; i++) { if (copy_from_user(&vec, &local_vec[i], @@ -874,6 +877,7 @@ int rds_cmsg_atomic(struct rds_sock *rs, struct rds_message *rm, err: if (page) put_page(page); + rm->atomic.op_active = 0; kfree(rm->atomic.op_notifier); return ret; diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c index e29a48ef7fc3..a0ac42b3ed06 100644 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@ -159,7 +159,7 @@ static void tcf_gact_stats_update(struct tc_action *a, u64 bytes, u32 packets, if (action == TC_ACT_SHOT) this_cpu_ptr(gact->common.cpu_qstats)->drops += packets; - tm->lastuse = lastuse; + tm->lastuse = max_t(u64, tm->lastuse, lastuse); } static int tcf_gact_dump(struct sk_buff *skb, struct tc_action *a, diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index 8b3e59388480..08b61849c2a2 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -239,7 +239,7 @@ static void tcf_stats_update(struct tc_action *a, u64 bytes, u32 packets, struct tcf_t *tm = &m->tcf_tm; _bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets); - tm->lastuse = lastuse; + tm->lastuse = max_t(u64, tm->lastuse, lastuse); } static int tcf_mirred_dump(struct sk_buff *skb, struct tc_action *a, int bind, diff --git a/net/sctp/input.c b/net/sctp/input.c index 621b5ca3fd1c..141c9c466ec1 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -399,20 +399,24 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc, return; } - if (t->param_flags & SPP_PMTUD_ENABLE) { - /* Update transports view of the MTU */ - sctp_transport_update_pmtu(t, pmtu); - - /* Update association pmtu. */ - sctp_assoc_sync_pmtu(asoc); - } + if (!(t->param_flags & SPP_PMTUD_ENABLE)) + /* We can't allow retransmitting in such case, as the + * retransmission would be sized just as before, and thus we + * would get another icmp, and retransmit again. + */ + return; - /* Retransmit with the new pmtu setting. - * Normally, if PMTU discovery is disabled, an ICMP Fragmentation - * Needed will never be sent, but if a message was sent before - * PMTU discovery was disabled that was larger than the PMTU, it - * would not be fragmented, so it must be re-transmitted fragmented. + /* Update transports view of the MTU. Return if no update was needed. + * If an update wasn't needed/possible, it also doesn't make sense to + * try to retransmit now. */ + if (!sctp_transport_update_pmtu(t, pmtu)) + return; + + /* Update association pmtu. */ + sctp_assoc_sync_pmtu(asoc); + + /* Retransmit with the new pmtu setting. */ sctp_retransmit(&asoc->outqueue, t, SCTP_RTXR_PMTUD); } diff --git a/net/sctp/socket.c b/net/sctp/socket.c index b4fb6e4886d2..9b01e994f661 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -2277,7 +2277,7 @@ static int sctp_setsockopt_events(struct sock *sk, char __user *optval, if (asoc && sctp_outq_is_empty(&asoc->outqueue)) { event = sctp_ulpevent_make_sender_dry_event(asoc, - GFP_ATOMIC); + GFP_USER | __GFP_NOWARN); if (!event) return -ENOMEM; @@ -3498,6 +3498,8 @@ static int sctp_setsockopt_hmac_ident(struct sock *sk, if (optlen < sizeof(struct sctp_hmacalgo)) return -EINVAL; + optlen = min_t(unsigned int, optlen, sizeof(struct sctp_hmacalgo) + + SCTP_AUTH_NUM_HMACS * sizeof(u16)); hmacs = memdup_user(optval, optlen); if (IS_ERR(hmacs)) @@ -3536,6 +3538,11 @@ static int sctp_setsockopt_auth_key(struct sock *sk, if (optlen <= sizeof(struct sctp_authkey)) return -EINVAL; + /* authkey->sca_keylength is u16, so optlen can't be bigger than + * this. + */ + optlen = min_t(unsigned int, optlen, USHRT_MAX + + sizeof(struct sctp_authkey)); authkey = memdup_user(optval, optlen); if (IS_ERR(authkey)) @@ -3893,6 +3900,9 @@ static int sctp_setsockopt_reset_streams(struct sock *sk, if (optlen < sizeof(*params)) return -EINVAL; + /* srs_number_streams is u16, so optlen can't be bigger than this. */ + optlen = min_t(unsigned int, optlen, USHRT_MAX + + sizeof(__u16) * sizeof(*params)); params = memdup_user(optval, optlen); if (IS_ERR(params)) @@ -5015,7 +5025,7 @@ static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optv len = sizeof(int); if (put_user(len, optlen)) return -EFAULT; - if (copy_to_user(optval, &sctp_sk(sk)->autoclose, sizeof(int))) + if (copy_to_user(optval, &sctp_sk(sk)->autoclose, len)) return -EFAULT; return 0; } @@ -5645,6 +5655,9 @@ copy_getaddrs: err = -EFAULT; goto out; } + /* XXX: We should have accounted for sizeof(struct sctp_getaddrs) too, + * but we can't change it anymore. + */ if (put_user(bytes_copied, optlen)) err = -EFAULT; out: @@ -6081,7 +6094,7 @@ static int sctp_getsockopt_maxseg(struct sock *sk, int len, params.assoc_id = 0; } else if (len >= sizeof(struct sctp_assoc_value)) { len = sizeof(struct sctp_assoc_value); - if (copy_from_user(¶ms, optval, sizeof(params))) + if (copy_from_user(¶ms, optval, len)) return -EFAULT; } else return -EINVAL; @@ -6251,7 +6264,9 @@ static int sctp_getsockopt_active_key(struct sock *sk, int len, if (len < sizeof(struct sctp_authkeyid)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(struct sctp_authkeyid))) + + len = sizeof(struct sctp_authkeyid); + if (copy_from_user(&val, optval, len)) return -EFAULT; asoc = sctp_id2assoc(sk, val.scact_assoc_id); @@ -6263,7 +6278,6 @@ static int sctp_getsockopt_active_key(struct sock *sk, int len, else val.scact_keynumber = ep->active_key_id; - len = sizeof(struct sctp_authkeyid); if (put_user(len, optlen)) return -EFAULT; if (copy_to_user(optval, &val, len)) @@ -6289,7 +6303,7 @@ static int sctp_getsockopt_peer_auth_chunks(struct sock *sk, int len, if (len < sizeof(struct sctp_authchunks)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(struct sctp_authchunks))) + if (copy_from_user(&val, optval, sizeof(val))) return -EFAULT; to = p->gauth_chunks; @@ -6334,7 +6348,7 @@ static int sctp_getsockopt_local_auth_chunks(struct sock *sk, int len, if (len < sizeof(struct sctp_authchunks)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(struct sctp_authchunks))) + if (copy_from_user(&val, optval, sizeof(val))) return -EFAULT; to = p->gauth_chunks; diff --git a/net/sctp/stream.c b/net/sctp/stream.c index 76ea66be0bbe..524dfeb94c41 100644 --- a/net/sctp/stream.c +++ b/net/sctp/stream.c @@ -156,9 +156,9 @@ int sctp_stream_init(struct sctp_stream *stream, __u16 outcnt, __u16 incnt, sctp_stream_outq_migrate(stream, NULL, outcnt); sched->sched_all(stream); - i = sctp_stream_alloc_out(stream, outcnt, gfp); - if (i) - return i; + ret = sctp_stream_alloc_out(stream, outcnt, gfp); + if (ret) + goto out; stream->outcnt = outcnt; for (i = 0; i < stream->outcnt; i++) @@ -170,19 +170,17 @@ in: if (!incnt) goto out; - i = sctp_stream_alloc_in(stream, incnt, gfp); - if (i) { - ret = -ENOMEM; - goto free; + ret = sctp_stream_alloc_in(stream, incnt, gfp); + if (ret) { + sched->free(stream); + kfree(stream->out); + stream->out = NULL; + stream->outcnt = 0; + goto out; } stream->incnt = incnt; - goto out; -free: - sched->free(stream); - kfree(stream->out); - stream->out = NULL; out: return ret; } diff --git a/net/sctp/transport.c b/net/sctp/transport.c index 1e5a22430cf5..47f82bd794d9 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -248,28 +248,37 @@ void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk) transport->pathmtu = SCTP_DEFAULT_MAXSEGMENT; } -void sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu) +bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu) { struct dst_entry *dst = sctp_transport_dst_check(t); + bool change = true; if (unlikely(pmtu < SCTP_DEFAULT_MINSEGMENT)) { - pr_warn("%s: Reported pmtu %d too low, using default minimum of %d\n", - __func__, pmtu, SCTP_DEFAULT_MINSEGMENT); - /* Use default minimum segment size and disable - * pmtu discovery on this transport. - */ - t->pathmtu = SCTP_DEFAULT_MINSEGMENT; - } else { - t->pathmtu = pmtu; + pr_warn_ratelimited("%s: Reported pmtu %d too low, using default minimum of %d\n", + __func__, pmtu, SCTP_DEFAULT_MINSEGMENT); + /* Use default minimum segment instead */ + pmtu = SCTP_DEFAULT_MINSEGMENT; } + pmtu = SCTP_TRUNC4(pmtu); if (dst) { dst->ops->update_pmtu(dst, t->asoc->base.sk, NULL, pmtu); dst = sctp_transport_dst_check(t); } - if (!dst) + if (!dst) { t->af_specific->get_dst(t, &t->saddr, &t->fl, t->asoc->base.sk); + dst = t->dst; + } + + if (dst) { + /* Re-fetch, as under layers may have a higher minimum size */ + pmtu = SCTP_TRUNC4(dst_mtu(dst)); + change = t->pathmtu != pmtu; + } + t->pathmtu = pmtu; + + return change; } /* Caches the dst entry and source address for a transport's destination diff --git a/net/socket.c b/net/socket.c index 05f361faec45..6f05d5c4bf30 100644 --- a/net/socket.c +++ b/net/socket.c @@ -436,8 +436,10 @@ static int sock_map_fd(struct socket *sock, int flags) { struct file *newfile; int fd = get_unused_fd_flags(flags); - if (unlikely(fd < 0)) + if (unlikely(fd < 0)) { + sock_release(sock); return fd; + } newfile = sock_alloc_file(sock, flags, NULL); if (likely(!IS_ERR(newfile))) { @@ -2619,6 +2621,15 @@ out_fs: core_initcall(sock_init); /* early initcall */ +static int __init jit_init(void) +{ +#ifdef CONFIG_BPF_JIT_ALWAYS_ON + bpf_jit_enable = 1; +#endif + return 0; +} +pure_initcall(jit_init); + #ifdef CONFIG_PROC_FS void socket_seq_show(struct seq_file *seq) { diff --git a/net/tipc/group.c b/net/tipc/group.c index 8e12ab55346b..5f4ffae807ee 100644 --- a/net/tipc/group.c +++ b/net/tipc/group.c @@ -109,7 +109,8 @@ static void tipc_group_proto_xmit(struct tipc_group *grp, struct tipc_member *m, static void tipc_group_decr_active(struct tipc_group *grp, struct tipc_member *m) { - if (m->state == MBR_ACTIVE || m->state == MBR_RECLAIMING) + if (m->state == MBR_ACTIVE || m->state == MBR_RECLAIMING || + m->state == MBR_REMITTED) grp->active_cnt--; } @@ -562,7 +563,7 @@ void tipc_group_update_rcv_win(struct tipc_group *grp, int blks, u32 node, int max_active = grp->max_active; int reclaim_limit = max_active * 3 / 4; int active_cnt = grp->active_cnt; - struct tipc_member *m, *rm; + struct tipc_member *m, *rm, *pm; m = tipc_group_find_member(grp, node, port); if (!m) @@ -605,6 +606,17 @@ void tipc_group_update_rcv_win(struct tipc_group *grp, int blks, u32 node, pr_warn_ratelimited("Rcv unexpected msg after REMIT\n"); tipc_group_proto_xmit(grp, m, GRP_ADV_MSG, xmitq); } + grp->active_cnt--; + list_del_init(&m->list); + if (list_empty(&grp->pending)) + return; + + /* Set oldest pending member to active and advertise */ + pm = list_first_entry(&grp->pending, struct tipc_member, list); + pm->state = MBR_ACTIVE; + list_move_tail(&pm->list, &grp->active); + grp->active_cnt++; + tipc_group_proto_xmit(grp, pm, GRP_ADV_MSG, xmitq); break; case MBR_RECLAIMING: case MBR_DISCOVERED: @@ -742,14 +754,14 @@ void tipc_group_proto_rcv(struct tipc_group *grp, bool *usr_wakeup, if (!m || m->state != MBR_RECLAIMING) return; - list_del_init(&m->list); - grp->active_cnt--; remitted = msg_grp_remitted(hdr); /* Messages preceding the REMIT still in receive queue */ if (m->advertised > remitted) { m->state = MBR_REMITTED; in_flight = m->advertised - remitted; + m->advertised = ADV_IDLE + in_flight; + return; } /* All messages preceding the REMIT have been read */ if (m->advertised <= remitted) { @@ -761,6 +773,8 @@ void tipc_group_proto_rcv(struct tipc_group *grp, bool *usr_wakeup, tipc_group_proto_xmit(grp, m, GRP_ADV_MSG, xmitq); m->advertised = ADV_IDLE + in_flight; + grp->active_cnt--; + list_del_init(&m->list); /* Set oldest pending member to active and advertise */ if (list_empty(&grp->pending)) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 213d0c498c97..2b3dbcd40e46 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -11361,7 +11361,8 @@ static int nl80211_nan_add_func(struct sk_buff *skb, break; case NL80211_NAN_FUNC_FOLLOW_UP: if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] || - !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) { + !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] || + !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) { err = -EINVAL; goto out; } diff --git a/security/apparmor/mount.c b/security/apparmor/mount.c index ed9b4d0f9f7e..8c558cbce930 100644 --- a/security/apparmor/mount.c +++ b/security/apparmor/mount.c @@ -329,6 +329,9 @@ static int match_mnt_path_str(struct aa_profile *profile, AA_BUG(!mntpath); AA_BUG(!buffer); + if (!PROFILE_MEDIATES(profile, AA_CLASS_MOUNT)) + return 0; + error = aa_path_name(mntpath, path_flags(profile, mntpath), buffer, &mntpnt, &info, profile->disconnected); if (error) @@ -380,6 +383,9 @@ static int match_mnt(struct aa_profile *profile, const struct path *path, AA_BUG(!profile); AA_BUG(devpath && !devbuffer); + if (!PROFILE_MEDIATES(profile, AA_CLASS_MOUNT)) + return 0; + if (devpath) { error = aa_path_name(devpath, path_flags(profile, devpath), devbuffer, &devname, &info, @@ -558,6 +564,9 @@ static int profile_umount(struct aa_profile *profile, struct path *path, AA_BUG(!profile); AA_BUG(!path); + if (!PROFILE_MEDIATES(profile, AA_CLASS_MOUNT)) + return 0; + error = aa_path_name(path, path_flags(profile, path), buffer, &name, &info, profile->disconnected); if (error) @@ -613,7 +622,8 @@ static struct aa_label *build_pivotroot(struct aa_profile *profile, AA_BUG(!new_path); AA_BUG(!old_path); - if (profile_unconfined(profile)) + if (profile_unconfined(profile) || + !PROFILE_MEDIATES(profile, AA_CLASS_MOUNT)) return aa_get_newest_label(&profile->label); error = aa_path_name(old_path, path_flags(profile, old_path), diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index e49f448ee04f..c2db7e905f7d 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -455,7 +455,6 @@ static int snd_pcm_hw_param_near(struct snd_pcm_substream *pcm, v = snd_pcm_hw_param_last(pcm, params, var, dir); else v = snd_pcm_hw_param_first(pcm, params, var, dir); - snd_BUG_ON(v < 0); return v; } @@ -1335,8 +1334,11 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha if ((tmp = snd_pcm_oss_make_ready(substream)) < 0) return tmp; - mutex_lock(&runtime->oss.params_lock); while (bytes > 0) { + if (mutex_lock_interruptible(&runtime->oss.params_lock)) { + tmp = -ERESTARTSYS; + break; + } if (bytes < runtime->oss.period_bytes || runtime->oss.buffer_used > 0) { tmp = bytes; if (tmp + runtime->oss.buffer_used > runtime->oss.period_bytes) @@ -1380,14 +1382,18 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha xfer += tmp; if ((substream->f_flags & O_NONBLOCK) != 0 && tmp != runtime->oss.period_bytes) - break; + tmp = -EAGAIN; } - } - mutex_unlock(&runtime->oss.params_lock); - return xfer; - err: - mutex_unlock(&runtime->oss.params_lock); + mutex_unlock(&runtime->oss.params_lock); + if (tmp < 0) + break; + if (signal_pending(current)) { + tmp = -ERESTARTSYS; + break; + } + tmp = 0; + } return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp; } @@ -1435,8 +1441,11 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use if ((tmp = snd_pcm_oss_make_ready(substream)) < 0) return tmp; - mutex_lock(&runtime->oss.params_lock); while (bytes > 0) { + if (mutex_lock_interruptible(&runtime->oss.params_lock)) { + tmp = -ERESTARTSYS; + break; + } if (bytes < runtime->oss.period_bytes || runtime->oss.buffer_used > 0) { if (runtime->oss.buffer_used == 0) { tmp = snd_pcm_oss_read2(substream, runtime->oss.buffer, runtime->oss.period_bytes, 1); @@ -1467,12 +1476,16 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use bytes -= tmp; xfer += tmp; } - } - mutex_unlock(&runtime->oss.params_lock); - return xfer; - err: - mutex_unlock(&runtime->oss.params_lock); + mutex_unlock(&runtime->oss.params_lock); + if (tmp < 0) + break; + if (signal_pending(current)) { + tmp = -ERESTARTSYS; + break; + } + tmp = 0; + } return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp; } diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c index cadc93792868..85a56af104bd 100644 --- a/sound/core/oss/pcm_plugin.c +++ b/sound/core/oss/pcm_plugin.c @@ -592,18 +592,26 @@ snd_pcm_sframes_t snd_pcm_plug_write_transfer(struct snd_pcm_substream *plug, st snd_pcm_sframes_t frames = size; plugin = snd_pcm_plug_first(plug); - while (plugin && frames > 0) { + while (plugin) { + if (frames <= 0) + return frames; if ((next = plugin->next) != NULL) { snd_pcm_sframes_t frames1 = frames; - if (plugin->dst_frames) + if (plugin->dst_frames) { frames1 = plugin->dst_frames(plugin, frames); + if (frames1 <= 0) + return frames1; + } if ((err = next->client_channels(next, frames1, &dst_channels)) < 0) { return err; } if (err != frames1) { frames = err; - if (plugin->src_frames) + if (plugin->src_frames) { frames = plugin->src_frames(plugin, frames1); + if (frames <= 0) + return frames; + } } } else dst_channels = NULL; diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 10e7ef7a8804..db7894bb028c 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -1632,7 +1632,7 @@ int snd_pcm_hw_param_first(struct snd_pcm_substream *pcm, return changed; if (params->rmask) { int err = snd_pcm_hw_refine(pcm, params); - if (snd_BUG_ON(err < 0)) + if (err < 0) return err; } return snd_pcm_hw_param_value(params, var, dir); @@ -1678,7 +1678,7 @@ int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm, return changed; if (params->rmask) { int err = snd_pcm_hw_refine(pcm, params); - if (snd_BUG_ON(err < 0)) + if (err < 0) return err; } return snd_pcm_hw_param_value(params, var, dir); diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index a4d92e46c459..f08772568c17 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -2580,7 +2580,7 @@ static snd_pcm_sframes_t forward_appl_ptr(struct snd_pcm_substream *substream, return ret < 0 ? ret : frames; } -/* decrease the appl_ptr; returns the processed frames or a negative error */ +/* decrease the appl_ptr; returns the processed frames or zero for error */ static snd_pcm_sframes_t rewind_appl_ptr(struct snd_pcm_substream *substream, snd_pcm_uframes_t frames, snd_pcm_sframes_t avail) @@ -2597,7 +2597,12 @@ static snd_pcm_sframes_t rewind_appl_ptr(struct snd_pcm_substream *substream, if (appl_ptr < 0) appl_ptr += runtime->boundary; ret = pcm_lib_apply_appl_ptr(substream, appl_ptr); - return ret < 0 ? ret : frames; + /* NOTE: we return zero for errors because PulseAudio gets depressed + * upon receiving an error from rewind ioctl and stops processing + * any longer. Returning zero means that no rewind is done, so + * it's not absolutely wrong to answer like that. + */ + return ret < 0 ? 0 : frames; } static snd_pcm_sframes_t snd_pcm_playback_rewind(struct snd_pcm_substream *substream, diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c index afac886ffa28..0333143a1fa7 100644 --- a/sound/drivers/aloop.c +++ b/sound/drivers/aloop.c @@ -39,6 +39,7 @@ #include <sound/core.h> #include <sound/control.h> #include <sound/pcm.h> +#include <sound/pcm_params.h> #include <sound/info.h> #include <sound/initval.h> @@ -305,19 +306,6 @@ static int loopback_trigger(struct snd_pcm_substream *substream, int cmd) return 0; } -static void params_change_substream(struct loopback_pcm *dpcm, - struct snd_pcm_runtime *runtime) -{ - struct snd_pcm_runtime *dst_runtime; - - if (dpcm == NULL || dpcm->substream == NULL) - return; - dst_runtime = dpcm->substream->runtime; - if (dst_runtime == NULL) - return; - dst_runtime->hw = dpcm->cable->hw; -} - static void params_change(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; @@ -329,10 +317,6 @@ static void params_change(struct snd_pcm_substream *substream) cable->hw.rate_max = runtime->rate; cable->hw.channels_min = runtime->channels; cable->hw.channels_max = runtime->channels; - params_change_substream(cable->streams[SNDRV_PCM_STREAM_PLAYBACK], - runtime); - params_change_substream(cable->streams[SNDRV_PCM_STREAM_CAPTURE], - runtime); } static int loopback_prepare(struct snd_pcm_substream *substream) @@ -620,26 +604,29 @@ static unsigned int get_cable_index(struct snd_pcm_substream *substream) static int rule_format(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) { + struct loopback_pcm *dpcm = rule->private; + struct loopback_cable *cable = dpcm->cable; + struct snd_mask m; - struct snd_pcm_hardware *hw = rule->private; - struct snd_mask *maskp = hw_param_mask(params, rule->var); - - maskp->bits[0] &= (u_int32_t)hw->formats; - maskp->bits[1] &= (u_int32_t)(hw->formats >> 32); - memset(maskp->bits + 2, 0, (SNDRV_MASK_MAX-64) / 8); /* clear rest */ - if (! maskp->bits[0] && ! maskp->bits[1]) - return -EINVAL; - return 0; + snd_mask_none(&m); + mutex_lock(&dpcm->loopback->cable_lock); + m.bits[0] = (u_int32_t)cable->hw.formats; + m.bits[1] = (u_int32_t)(cable->hw.formats >> 32); + mutex_unlock(&dpcm->loopback->cable_lock); + return snd_mask_refine(hw_param_mask(params, rule->var), &m); } static int rule_rate(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) { - struct snd_pcm_hardware *hw = rule->private; + struct loopback_pcm *dpcm = rule->private; + struct loopback_cable *cable = dpcm->cable; struct snd_interval t; - t.min = hw->rate_min; - t.max = hw->rate_max; + mutex_lock(&dpcm->loopback->cable_lock); + t.min = cable->hw.rate_min; + t.max = cable->hw.rate_max; + mutex_unlock(&dpcm->loopback->cable_lock); t.openmin = t.openmax = 0; t.integer = 0; return snd_interval_refine(hw_param_interval(params, rule->var), &t); @@ -648,22 +635,44 @@ static int rule_rate(struct snd_pcm_hw_params *params, static int rule_channels(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) { - struct snd_pcm_hardware *hw = rule->private; + struct loopback_pcm *dpcm = rule->private; + struct loopback_cable *cable = dpcm->cable; struct snd_interval t; - t.min = hw->channels_min; - t.max = hw->channels_max; + mutex_lock(&dpcm->loopback->cable_lock); + t.min = cable->hw.channels_min; + t.max = cable->hw.channels_max; + mutex_unlock(&dpcm->loopback->cable_lock); t.openmin = t.openmax = 0; t.integer = 0; return snd_interval_refine(hw_param_interval(params, rule->var), &t); } +static void free_cable(struct snd_pcm_substream *substream) +{ + struct loopback *loopback = substream->private_data; + int dev = get_cable_index(substream); + struct loopback_cable *cable; + + cable = loopback->cables[substream->number][dev]; + if (!cable) + return; + if (cable->streams[!substream->stream]) { + /* other stream is still alive */ + cable->streams[substream->stream] = NULL; + } else { + /* free the cable */ + loopback->cables[substream->number][dev] = NULL; + kfree(cable); + } +} + static int loopback_open(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct loopback *loopback = substream->private_data; struct loopback_pcm *dpcm; - struct loopback_cable *cable; + struct loopback_cable *cable = NULL; int err = 0; int dev = get_cable_index(substream); @@ -681,7 +690,6 @@ static int loopback_open(struct snd_pcm_substream *substream) if (!cable) { cable = kzalloc(sizeof(*cable), GFP_KERNEL); if (!cable) { - kfree(dpcm); err = -ENOMEM; goto unlock; } @@ -699,19 +707,19 @@ static int loopback_open(struct snd_pcm_substream *substream) /* are cached -> they do not reflect the actual state */ err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, - rule_format, &runtime->hw, + rule_format, dpcm, SNDRV_PCM_HW_PARAM_FORMAT, -1); if (err < 0) goto unlock; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, - rule_rate, &runtime->hw, + rule_rate, dpcm, SNDRV_PCM_HW_PARAM_RATE, -1); if (err < 0) goto unlock; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, - rule_channels, &runtime->hw, + rule_channels, dpcm, SNDRV_PCM_HW_PARAM_CHANNELS, -1); if (err < 0) goto unlock; @@ -723,6 +731,10 @@ static int loopback_open(struct snd_pcm_substream *substream) else runtime->hw = cable->hw; unlock: + if (err < 0) { + free_cable(substream); + kfree(dpcm); + } mutex_unlock(&loopback->cable_lock); return err; } @@ -731,20 +743,10 @@ static int loopback_close(struct snd_pcm_substream *substream) { struct loopback *loopback = substream->private_data; struct loopback_pcm *dpcm = substream->runtime->private_data; - struct loopback_cable *cable; - int dev = get_cable_index(substream); loopback_timer_stop(dpcm); mutex_lock(&loopback->cable_lock); - cable = loopback->cables[substream->number][dev]; - if (cable->streams[!substream->stream]) { - /* other stream is still alive */ - cable->streams[substream->stream] = NULL; - } else { - /* free the cable */ - loopback->cables[substream->number][dev] = NULL; - kfree(cable); - } + free_cable(substream); mutex_unlock(&loopback->cable_lock); return 0; } diff --git a/tools/testing/selftests/bpf/test_align.c b/tools/testing/selftests/bpf/test_align.c index 8591c89c0828..471bbbdb94db 100644 --- a/tools/testing/selftests/bpf/test_align.c +++ b/tools/testing/selftests/bpf/test_align.c @@ -474,27 +474,7 @@ static struct bpf_align_test tests[] = { .result = REJECT, .matches = { {4, "R5=pkt(id=0,off=0,r=0,imm=0)"}, - /* ptr & 0x40 == either 0 or 0x40 */ - {5, "R5=inv(id=0,umax_value=64,var_off=(0x0; 0x40))"}, - /* ptr << 2 == unknown, (4n) */ - {7, "R5=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc))"}, - /* (4n) + 14 == (4n+2). We blow our bounds, because - * the add could overflow. - */ - {8, "R5=inv(id=0,var_off=(0x2; 0xfffffffffffffffc))"}, - /* Checked s>=0 */ - {10, "R5=inv(id=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"}, - /* packet pointer + nonnegative (4n+2) */ - {12, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"}, - {14, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"}, - /* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine. - * We checked the bounds, but it might have been able - * to overflow if the packet pointer started in the - * upper half of the address space. - * So we did not get a 'range' on R6, and the access - * attempt will fail. - */ - {16, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"}, + /* R5 bitwise operator &= on pointer prohibited */ } }, { |