diff --git a/Makefile b/Makefile index 9770f29a690a..892ff14cbc9d 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 4 PATCHLEVEL = 19 -SUBLEVEL = 12 +SUBLEVEL = 13 EXTRAVERSION = NAME = "People's Front"

diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h index 92fd2c8a9af0..12659ce5c1f3 100644 --- a/arch/arm/include/asm/pgtable-2level.h +++ b/arch/arm/include/asm/pgtable-2level.h @@ -10,7 +10,7 @@ #ifndef _ASM_PGTABLE_2LEVEL_H #define _ASM_PGTABLE_2LEVEL_H

-#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1

/* * Hardware-wise, we have a two level page table structure, where the first diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index 6181e4134483..fe3ddd73a0cc 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -55,12 +55,12 @@ */ #ifdef CONFIG_SUN3 #define PTRS_PER_PTE 16 -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #define PTRS_PER_PMD 1 #define PTRS_PER_PGD 2048 #elif defined(CONFIG_COLDFIRE) #define PTRS_PER_PTE 512 -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #define PTRS_PER_PMD 1 #define PTRS_PER_PGD 1024 #else diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index 7b650ab14fa0..2ca598534cc7 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -63,7 +63,7 @@ extern int mem_init_done;

#include <asm-generic/4level-fixup.h>

-#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1

#ifdef __KERNEL__ #ifndef __ASSEMBLY__ diff --git a/arch/nds32/include/asm/pgtable.h b/arch/nds32/include/asm/pgtable.h index d3e19a55cf53..9f52db930c00 100644 --- a/arch/nds32/include/asm/pgtable.h +++ b/arch/nds32/include/asm/pgtable.h @@ -4,7 +4,7 @@ #ifndef _ASMNDS32_PGTABLE_H #define _ASMNDS32_PGTABLE_H

-#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #include <asm-generic/4level-fixup.h> #include <asm-generic/sizes.h>

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index fa6b7c78f18a..ff0860b2b21a 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -117,7 +117,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr) #if CONFIG_PGTABLE_LEVELS == 3 #define BITS_PER_PMD (PAGE_SHIFT + PMD_ORDER - BITS_PER_PMD_ENTRY) #else -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #define BITS_PER_PMD 0 #endif #define PTRS_PER_PMD (1UL << BITS_PER_PMD) diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile index 141d415a8c80..c3d7ccd25381 100644 --- a/arch/x86/entry/vdso/Makefile +++ b/arch/x86/entry/vdso/Makefile @@ -171,7 +171,8 @@ quiet_cmd_vdso = VDSO $@ sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'

VDSO_LDFLAGS = -shared $(call ld-option, --hash-style=both) \ - $(call ld-option, --build-id) -Bsymbolic + $(call ld-option, --build-id) $(call ld-option, --eh-frame-hdr) \ + -Bsymbolic GCOV_PROFILE := n

# diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index b3486c8b570a..1f9de7635bcb 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -389,6 +389,7 @@ #define MSR_F15H_NB_PERF_CTR 0xc0010241 #define MSR_F15H_PTSC 0xc0010280 #define MSR_F15H_IC_CFG 0xc0011021 +#define MSR_F15H_EX_CFG 0xc001102c

/* Fam 10h MSRs */ #define MSR_FAM10H_MMIO_CONF_BASE 0xc0010058 diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c index 0f53049719cd..627e5c809b33 100644 --- a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c +++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c @@ -23,6 +23,7 @@

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

+#include <linux/cpu.h> #include <linux/kernfs.h> #include <linux/seq_file.h> #include <linux/slab.h> @@ -310,9 +311,11 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of, return -EINVAL; buf[nbytes - 1] = '\0';

+ cpus_read_lock(); rdtgrp = rdtgroup_kn_lock_live(of->kn); if (!rdtgrp) { rdtgroup_kn_unlock(of->kn); + cpus_read_unlock(); return -ENOENT; } rdt_last_cmd_clear(); @@ -367,6 +370,7 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,

out: rdtgroup_kn_unlock(of->kn); + cpus_read_unlock(); return ret ?: nbytes; }

diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c index 40eee6cc4124..254683b503a9 100644 --- a/arch/x86/kernel/cpu/mtrr/if.c +++ b/arch/x86/kernel/cpu/mtrr/if.c @@ -165,6 +165,8 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg) struct mtrr_gentry gentry; void __user *arg = (void __user *) __arg;

+ memset(&gentry, 0, sizeof(gentry)); + switch (cmd) { case MTRRIOC_ADD_ENTRY: case MTRRIOC_SET_ENTRY: diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index c97a9d60d305..33ffb6d17e73 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -11471,6 +11471,8 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu) kunmap(vmx->nested.pi_desc_page); kvm_release_page_dirty(vmx->nested.pi_desc_page); vmx->nested.pi_desc_page = NULL; + vmx->nested.pi_desc = NULL; + vmcs_write64(POSTED_INTR_DESC_ADDR, -1ull); } page = kvm_vcpu_gpa_to_page(vcpu, vmcs12->posted_intr_desc_addr); if (is_error_page(page)) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 68b53f05a420..956eecd227f8 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2343,6 +2343,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_AMD64_PATCH_LOADER: case MSR_AMD64_BU_CFG2: case MSR_AMD64_DC_CFG: + case MSR_F15H_EX_CFG: break;

case MSR_IA32_UCODE_REV: @@ -2638,6 +2639,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_AMD64_BU_CFG2: case MSR_IA32_PERF_CTL: case MSR_AMD64_DC_CFG: + case MSR_F15H_EX_CFG: msr_info->data = 0; break; case MSR_F15H_PERF_CTL0 ... MSR_F15H_PERF_CTR5: @@ -7304,7 +7306,7 @@ void kvm_make_scan_ioapic_request(struct kvm *kvm)

static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu) { - if (!kvm_apic_hw_enabled(vcpu->arch.apic)) + if (!kvm_apic_present(vcpu)) return;

bitmap_zero(vcpu->arch.ioapic_handled_vectors, 256); diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 3d0c83ef6aab..a3c9ea29d7cc 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -519,8 +519,13 @@ static u64 sanitize_phys(u64 address) * for a "decoy" virtual address (bit 63 clear) passed to * set_memory_X(). __pa() on a "decoy" address results in a * physical address with bit 63 set. + * + * Decoy addresses are not present for 32-bit builds, see + * set_mce_nospec(). */ - return address & __PHYSICAL_MASK; + if (IS_ENABLED(CONFIG_X86_64)) + return address & __PHYSICAL_MASK; + return address; }

/* @@ -546,7 +551,11 @@ int reserve_memtype(u64 start, u64 end, enum page_cache_mode req_type,

start = sanitize_phys(start); end = sanitize_phys(end); - BUG_ON(start >= end); /* end is exclusive */ + if (start >= end) { + WARN(1, "%s failed: [mem %#010Lx-%#010Lx], req %s\n", __func__, + start, end - 1, cattr_name(req_type)); + return -EINVAL; + }

if (!pat_enabled()) { /* This is identical to page table setting without PAT */ diff --git a/drivers/gpio/gpio-max7301.c b/drivers/gpio/gpio-max7301.c index 05813fbf3daf..647dfbbc4e1c 100644 --- a/drivers/gpio/gpio-max7301.c +++ b/drivers/gpio/gpio-max7301.c @@ -25,7 +25,7 @@ static int max7301_spi_write(struct device *dev, unsigned int reg, struct spi_device *spi = to_spi_device(dev); u16 word = ((reg & 0x7F) << 8) | (val & 0xFF);

- return spi_write(spi, (const u8 *)&word, sizeof(word)); + return spi_write_then_read(spi, &word, sizeof(word), NULL, 0); }

/* A read from the MAX7301 means two transfers; here, one message each */ @@ -37,14 +37,8 @@ static int max7301_spi_read(struct device *dev, unsigned int reg) struct spi_device *spi = to_spi_device(dev);

word = 0x8000 | (reg << 8); - ret = spi_write(spi, (const u8 *)&word, sizeof(word)); - if (ret) - return ret; - /* - * This relies on the fact, that a transfer with NULL tx_buf shifts out - * zero bytes (=NOOP for MAX7301) - */ - ret = spi_read(spi, (u8 *)&word, sizeof(word)); + ret = spi_write_then_read(spi, &word, sizeof(word), &word, + sizeof(word)); if (ret) return ret; return word & 0xff; diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 8b9d7e42c600..c5e009f61021 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -23,11 +23,28 @@

#include "gpiolib.h"

+/** + * struct acpi_gpio_event - ACPI GPIO event handler data + * + * @node: list-entry of the events list of the struct acpi_gpio_chip + * @handle: handle of ACPI method to execute when the IRQ triggers + * @handler: irq_handler to pass to request_irq when requesting the IRQ + * @pin: GPIO pin number on the gpio_chip + * @irq: Linux IRQ number for the event, for request_ / free_irq + * @irqflags: flags to pass to request_irq when requesting the IRQ + * @irq_is_wake: If the ACPI flags indicate the IRQ is a wakeup source + * @is_requested: True if request_irq has been done + * @desc: gpio_desc for the GPIO pin for this event + */ struct acpi_gpio_event { struct list_head node; acpi_handle handle; + irq_handler_t handler; unsigned int pin; unsigned int irq; + unsigned long irqflags; + bool irq_is_wake; + bool irq_requested; struct gpio_desc *desc; };

@@ -53,10 +70,10 @@ struct acpi_gpio_chip {

/* * For gpiochips which call acpi_gpiochip_request_interrupts() before late_init - * (so builtin drivers) we register the ACPI GpioInt event handlers from a + * (so builtin drivers) we register the ACPI GpioInt IRQ handlers from a * late_initcall_sync handler, so that other builtin drivers can register their * OpRegions before the event handlers can run. This list contains gpiochips - * for which the acpi_gpiochip_request_interrupts() has been deferred. + * for which the acpi_gpiochip_request_irqs() call has been deferred. */ static DEFINE_MUTEX(acpi_gpio_deferred_req_irqs_lock); static LIST_HEAD(acpi_gpio_deferred_req_irqs_list); @@ -137,8 +154,42 @@ bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, } EXPORT_SYMBOL_GPL(acpi_gpio_get_irq_resource);

-static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, - void *context) +static void acpi_gpiochip_request_irq(struct acpi_gpio_chip *acpi_gpio, + struct acpi_gpio_event *event) +{ + int ret, value; + + ret = request_threaded_irq(event->irq, NULL, event->handler, + event->irqflags, "ACPI:Event", event); + if (ret) { + dev_err(acpi_gpio->chip->parent, + "Failed to setup interrupt handler for %d\n", + event->irq); + return; + } + + if (event->irq_is_wake) + enable_irq_wake(event->irq); + + event->irq_requested = true; + + /* Make sure we trigger the initial state of edge-triggered IRQs */ + value = gpiod_get_raw_value_cansleep(event->desc); + if (((event->irqflags & IRQF_TRIGGER_RISING) && value == 1) || + ((event->irqflags & IRQF_TRIGGER_FALLING) && value == 0)) + event->handler(event->irq, event); +} + +static void acpi_gpiochip_request_irqs(struct acpi_gpio_chip *acpi_gpio) +{ + struct acpi_gpio_event *event; + + list_for_each_entry(event, &acpi_gpio->events, node) + acpi_gpiochip_request_irq(acpi_gpio, event); +} + +static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, + void *context) { struct acpi_gpio_chip *acpi_gpio = context; struct gpio_chip *chip = acpi_gpio->chip; @@ -147,8 +198,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, struct acpi_gpio_event *event; irq_handler_t handler = NULL; struct gpio_desc *desc; - unsigned long irqflags; - int ret, pin, irq, value; + int ret, pin, irq;

if (!acpi_gpio_get_irq_resource(ares, &agpio)) return AE_OK; @@ -179,8 +229,6 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,

gpiod_direction_input(desc);

- value = gpiod_get_value_cansleep(desc); - ret = gpiochip_lock_as_irq(chip, pin); if (ret) { dev_err(chip->parent, "Failed to lock GPIO as interrupt\n"); @@ -193,64 +241,42 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, goto fail_unlock_irq; }

- irqflags = IRQF_ONESHOT; + event = kzalloc(sizeof(*event), GFP_KERNEL); + if (!event) + goto fail_unlock_irq; + + event->irqflags = IRQF_ONESHOT; if (agpio->triggering == ACPI_LEVEL_SENSITIVE) { if (agpio->polarity == ACPI_ACTIVE_HIGH) - irqflags |= IRQF_TRIGGER_HIGH; + event->irqflags |= IRQF_TRIGGER_HIGH; else - irqflags |= IRQF_TRIGGER_LOW; + event->irqflags |= IRQF_TRIGGER_LOW; } else { switch (agpio->polarity) { case ACPI_ACTIVE_HIGH: - irqflags |= IRQF_TRIGGER_RISING; + event->irqflags |= IRQF_TRIGGER_RISING; break; case ACPI_ACTIVE_LOW: - irqflags |= IRQF_TRIGGER_FALLING; + event->irqflags |= IRQF_TRIGGER_FALLING; break; default: - irqflags |= IRQF_TRIGGER_RISING | - IRQF_TRIGGER_FALLING; + event->irqflags |= IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING; break; } }

- event = kzalloc(sizeof(*event), GFP_KERNEL); - if (!event) - goto fail_unlock_irq; - event->handle = evt_handle; + event->handler = handler; event->irq = irq; + event->irq_is_wake = agpio->wake_capable == ACPI_WAKE_CAPABLE; event->pin = pin; event->desc = desc;

- ret = request_threaded_irq(event->irq, NULL, handler, irqflags, - "ACPI:Event", event); - if (ret) { - dev_err(chip->parent, - "Failed to setup interrupt handler for %d\n", - event->irq); - goto fail_free_event; - } - - if (agpio->wake_capable == ACPI_WAKE_CAPABLE) - enable_irq_wake(irq); - list_add_tail(&event->node, &acpi_gpio->events);

- /* - * Make sure we trigger the initial state of the IRQ when using RISING - * or FALLING. Note we run the handlers on late_init, the AML code - * may refer to OperationRegions from other (builtin) drivers which - * may be probed after us. - */ - if (((irqflags & IRQF_TRIGGER_RISING) && value == 1) || - ((irqflags & IRQF_TRIGGER_FALLING) && value == 0)) - handler(event->irq, event); - return AE_OK;

-fail_free_event: - kfree(event); fail_unlock_irq: gpiochip_unlock_as_irq(chip, pin); fail_free_desc: @@ -287,6 +313,9 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) if (ACPI_FAILURE(status)) return;

+ acpi_walk_resources(handle, "_AEI", + acpi_gpiochip_alloc_event, acpi_gpio); + mutex_lock(&acpi_gpio_deferred_req_irqs_lock); defer = !acpi_gpio_deferred_req_irqs_done; if (defer) @@ -297,8 +326,7 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) if (defer) return;

- acpi_walk_resources(handle, "_AEI", - acpi_gpiochip_request_interrupt, acpi_gpio); + acpi_gpiochip_request_irqs(acpi_gpio); } EXPORT_SYMBOL_GPL(acpi_gpiochip_request_interrupts);

@@ -335,10 +363,13 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) list_for_each_entry_safe_reverse(event, ep, &acpi_gpio->events, node) { struct gpio_desc *desc;

- if (irqd_is_wakeup_set(irq_get_irq_data(event->irq))) - disable_irq_wake(event->irq); + if (event->irq_requested) { + if (event->irq_is_wake) + disable_irq_wake(event->irq); + + free_irq(event->irq, event); + }

- free_irq(event->irq, event); desc = event->desc; if (WARN_ON(IS_ERR(desc))) continue; @@ -1204,23 +1235,16 @@ bool acpi_can_fallback_to_crs(struct acpi_device *adev, const char *con_id) return con_id == NULL; }

-/* Run deferred acpi_gpiochip_request_interrupts() */ -static int acpi_gpio_handle_deferred_request_interrupts(void) +/* Run deferred acpi_gpiochip_request_irqs() */ +static int acpi_gpio_handle_deferred_request_irqs(void) { struct acpi_gpio_chip *acpi_gpio, *tmp;

mutex_lock(&acpi_gpio_deferred_req_irqs_lock); list_for_each_entry_safe(acpi_gpio, tmp, &acpi_gpio_deferred_req_irqs_list, - deferred_req_irqs_list_entry) { - acpi_handle handle; - - handle = ACPI_HANDLE(acpi_gpio->chip->parent); - acpi_walk_resources(handle, "_AEI", - acpi_gpiochip_request_interrupt, acpi_gpio); - - list_del_init(&acpi_gpio->deferred_req_irqs_list_entry); - } + deferred_req_irqs_list_entry) + acpi_gpiochip_request_irqs(acpi_gpio);

acpi_gpio_deferred_req_irqs_done = true; mutex_unlock(&acpi_gpio_deferred_req_irqs_lock); @@ -1228,4 +1252,4 @@ static int acpi_gpio_handle_deferred_request_interrupts(void) return 0; } /* We must use _sync so that this runs after the first deferred_probe run */ -late_initcall_sync(acpi_gpio_handle_deferred_request_interrupts); +late_initcall_sync(acpi_gpio_handle_deferred_request_irqs); diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index ea10e9a26aad..ba129b64b61f 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -37,6 +37,7 @@

#include <linux/pci.h> #include <linux/export.h> +#include <linux/nospec.h>

/** * DOC: getunique and setversion story @@ -794,13 +795,17 @@ long drm_ioctl(struct file *filp,

if (is_driver_ioctl) { /* driver ioctl */ - if (nr - DRM_COMMAND_BASE >= dev->driver->num_ioctls) + unsigned int index = nr - DRM_COMMAND_BASE; + + if (index >= dev->driver->num_ioctls) goto err_i1; - ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE]; + index = array_index_nospec(index, dev->driver->num_ioctls); + ioctl = &dev->driver->ioctls[index]; } else { /* core ioctl */ if (nr >= DRM_CORE_IOCTL_COUNT) goto err_i1; + nr = array_index_nospec(nr, DRM_CORE_IOCTL_COUNT); ioctl = &drm_ioctls[nr]; }

@@ -882,6 +887,7 @@ bool drm_ioctl_flags(unsigned int nr, unsigned int *flags)

if (nr >= DRM_CORE_IOCTL_COUNT) return false; + nr = array_index_nospec(nr, DRM_CORE_IOCTL_COUNT);

*flags = drm_ioctls[nr].flags; return true; diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index c71cc857b649..2c6d5c7a4445 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -316,6 +316,8 @@ static ssize_t out_intr_mask_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); return sprintf(buf, "%d\n", outbound.current_interrupt_mask); } @@ -329,6 +331,8 @@ static ssize_t out_read_index_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); return sprintf(buf, "%d\n", outbound.current_read_index); } @@ -343,6 +347,8 @@ static ssize_t out_write_index_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); return sprintf(buf, "%d\n", outbound.current_write_index); } @@ -357,6 +363,8 @@ static ssize_t out_read_bytes_avail_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); return sprintf(buf, "%d\n", outbound.bytes_avail_toread); } @@ -371,6 +379,8 @@ static ssize_t out_write_bytes_avail_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); return sprintf(buf, "%d\n", outbound.bytes_avail_towrite); } @@ -384,6 +394,8 @@ static ssize_t in_intr_mask_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); return sprintf(buf, "%d\n", inbound.current_interrupt_mask); } @@ -397,6 +409,8 @@ static ssize_t in_read_index_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); return sprintf(buf, "%d\n", inbound.current_read_index); } @@ -410,6 +424,8 @@ static ssize_t in_write_index_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); return sprintf(buf, "%d\n", inbound.current_write_index); } @@ -424,6 +440,8 @@ static ssize_t in_read_bytes_avail_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); return sprintf(buf, "%d\n", inbound.bytes_avail_toread); } @@ -438,6 +456,8 @@ static ssize_t in_write_bytes_avail_show(struct device *dev,

if (!hv_dev->channel) return -ENODEV; + if (hv_dev->channel->state != CHANNEL_OPENED_STATE) + return -EINVAL; hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); return sprintf(buf, "%d\n", inbound.bytes_avail_towrite); } diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 2d95e8d93cc7..9fe075c137dc 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1767,6 +1767,18 @@ static int elantech_smbus = IS_ENABLED(CONFIG_MOUSE_ELAN_I2C_SMBUS) ? module_param_named(elantech_smbus, elantech_smbus, int, 0644); MODULE_PARM_DESC(elantech_smbus, "Use a secondary bus for the Elantech device.");

+static const char * const i2c_blacklist_pnp_ids[] = { + /* + * These are known to not be working properly as bits are missing + * in elan_i2c. + */ + "LEN2131", /* ThinkPad P52 w/ NFC */ + "LEN2132", /* ThinkPad P52 */ + "LEN2133", /* ThinkPad P72 w/ NFC */ + "LEN2134", /* ThinkPad P72 */ + NULL +}; + static int elantech_create_smbus(struct psmouse *psmouse, struct elantech_device_info *info, bool leave_breadcrumbs) @@ -1802,10 +1814,12 @@ static int elantech_setup_smbus(struct psmouse *psmouse,

if (elantech_smbus == ELANTECH_SMBUS_NOT_SET) { /* - * New ICs are enabled by default. + * New ICs are enabled by default, unless mentioned in + * i2c_blacklist_pnp_ids. * Old ICs are up to the user to decide. */ - if (!ETP_NEW_IC_SMBUS_HOST_NOTIFY(info->fw_version)) + if (!ETP_NEW_IC_SMBUS_HOST_NOTIFY(info->fw_version) || + psmouse_matches_pnp_id(psmouse, i2c_blacklist_pnp_ids)) return -ENXIO; }

diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index 30b15e91d8be..8e7a2a59cd32 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -2020,6 +2020,7 @@ static int ov5640_set_fmt(struct v4l2_subdev *sd, struct ov5640_dev *sensor = to_ov5640_dev(sd); const struct ov5640_mode_info *new_mode; struct v4l2_mbus_framefmt *mbus_fmt = &format->format; + struct v4l2_mbus_framefmt *fmt; int ret;

if (format->pad != 0) @@ -2037,22 +2038,20 @@ static int ov5640_set_fmt(struct v4l2_subdev *sd, if (ret) goto out;

- if (format->which == V4L2_SUBDEV_FORMAT_TRY) { - struct v4l2_mbus_framefmt *fmt = - v4l2_subdev_get_try_format(sd, cfg, 0); + if (format->which == V4L2_SUBDEV_FORMAT_TRY) + fmt = v4l2_subdev_get_try_format(sd, cfg, 0); + else + fmt = &sensor->fmt;

- *fmt = *mbus_fmt; - goto out; - } + *fmt = *mbus_fmt;

if (new_mode != sensor->current_mode) { sensor->current_mode = new_mode; sensor->pending_mode_change = true; } - if (mbus_fmt->code != sensor->fmt.code) { - sensor->fmt = *mbus_fmt; + if (mbus_fmt->code != sensor->fmt.code) sensor->pending_fmt_change = true; - } + out: mutex_unlock(&sensor->lock); return ret; diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index bc1bd2c25613..55997cf84b39 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -30,6 +30,7 @@ #include "pwrseq.h"

#define DEFAULT_CMD6_TIMEOUT_MS 500 +#define MIN_CACHE_EN_TIMEOUT_MS 1600

static const unsigned int tran_exp[] = { 10000, 100000, 1000000, 10000000, @@ -526,8 +527,7 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) card->cid.year += 16;

/* check whether the eMMC card supports BKOPS */ - if (!mmc_card_broken_hpi(card) && - ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) { + if (ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) { card->ext_csd.bkops = 1; card->ext_csd.man_bkops_en = (ext_csd[EXT_CSD_BKOPS_EN] & @@ -1782,20 +1782,26 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, if (err) { pr_warn("%s: Enabling HPI failed\n", mmc_hostname(card->host)); + card->ext_csd.hpi_en = 0; err = 0; - } else + } else { card->ext_csd.hpi_en = 1; + } }

/* - * If cache size is higher than 0, this indicates - * the existence of cache and it can be turned on. + * If cache size is higher than 0, this indicates the existence of cache + * and it can be turned on. Note that some eMMCs from Micron has been + * reported to need ~800 ms timeout, while enabling the cache after + * sudden power failure tests. Let's extend the timeout to a minimum of + * DEFAULT_CACHE_EN_TIMEOUT_MS and do it for all cards. */ - if (!mmc_card_broken_hpi(card) && - card->ext_csd.cache_size > 0) { + if (card->ext_csd.cache_size > 0) { + unsigned int timeout_ms = MIN_CACHE_EN_TIMEOUT_MS; + + timeout_ms = max(card->ext_csd.generic_cmd6_time, timeout_ms); err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_CACHE_CTRL, 1, - card->ext_csd.generic_cmd6_time); + EXT_CSD_CACHE_CTRL, 1, timeout_ms); if (err && err != -EBADMSG) goto free_card;

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 68760d4a5d3d..b23c57e07f36 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -2066,7 +2066,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev) mmc->max_blk_size = 512; /* Block Length at max can be 1024 */ mmc->max_blk_count = 0xFFFF; /* No. of Blocks is 16 bits */ mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count; - mmc->max_seg_size = mmc->max_req_size;

mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED | MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_ERASE | MMC_CAP_CMD23; @@ -2096,6 +2095,17 @@ static int omap_hsmmc_probe(struct platform_device *pdev) goto err_irq; }

+ /* + * Limit the maximum segment size to the lower of the request size + * and the DMA engine device segment size limits. In reality, with + * 32-bit transfers, the DMA engine can do longer segments than this + * but there is no way to represent that in the DMA model - if we + * increase this figure here, we get warnings from the DMA API debug. + */ + mmc->max_seg_size = min3(mmc->max_req_size, + dma_get_max_seg_size(host->rx_chan->device->dev), + dma_get_max_seg_size(host->tx_chan->device->dev)); + /* Request IRQ for MMC operations */ ret = devm_request_irq(&pdev->dev, host->irq, omap_hsmmc_irq, 0, mmc_hostname(mmc), host); diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 184c24baca15..d6916f787fce 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -2807,6 +2807,12 @@ static int hso_get_config_data(struct usb_interface *interface) return -EIO; }

+ /* check if we have a valid interface */ + if (if_num > 16) { + kfree(config_data); + return -EINVAL; + } + switch (config_data[if_num]) { case 0x0: result = 0; @@ -2877,10 +2883,18 @@ static int hso_probe(struct usb_interface *interface,

/* Get the interface/port specification from either driver_info or from * the device itself */ - if (id->driver_info) + if (id->driver_info) { + /* if_num is controlled by the device, driver_info is a 0 terminated + * array. Make sure, the access is in bounds! */ + for (i = 0; i <= if_num; ++i) + if (((u32 *)(id->driver_info))[i] == 0) + goto exit; port_spec = ((u32 *)(id->driver_info))[if_num]; - else + } else { port_spec = hso_get_config_data(interface); + if (port_spec < 0) + goto exit; + }

/* Check if we need to switch to alt interfaces prior to port * configuration */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c index 4d49a1a3f504..16c6c7f921a8 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c @@ -868,6 +868,15 @@ static int iwl_mvm_sar_geo_init(struct iwl_mvm *mvm) int ret, i, j; u16 cmd_wide_id = WIDE_ID(PHY_OPS_GROUP, GEO_TX_POWER_LIMIT);

+ /* + * This command is not supported on earlier firmware versions. + * Unfortunately, we don't have a TLV API flag to rely on, so + * rely on the major version which is in the first byte of + * ucode_ver. + */ + if (IWL_UCODE_SERIAL(mvm->fw->ucode_ver) < 41) + return 0; + ret = iwl_mvm_sar_get_wgds_table(mvm); if (ret < 0) { IWL_DEBUG_RADIO(mvm, diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c index b150da4c6721..5d65500a8aa7 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c @@ -518,6 +518,56 @@ static const struct pci_device_id iwl_hw_card_ids[] = { {IWL_PCI_DEVICE(0x24FD, 0x9074, iwl8265_2ac_cfg)},

/* 9000 Series */ + {IWL_PCI_DEVICE(0x02F0, 0x0030, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0034, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0038, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x003C, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0060, iwl9461_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0064, iwl9461_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x00A0, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x00A4, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0230, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0234, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0238, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x023C, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0260, iwl9461_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x0264, iwl9461_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x02A0, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x02A4, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x1551, iwl9560_killer_s_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x1552, iwl9560_killer_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x2030, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x2034, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x4030, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x4034, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x40A4, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x4234, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x02F0, 0x42A4, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0030, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0034, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0038, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x003C, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0060, iwl9461_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0064, iwl9461_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x00A0, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x00A4, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0230, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0234, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0238, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x023C, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0260, iwl9461_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x0264, iwl9461_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x02A0, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x02A4, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x1551, iwl9560_killer_s_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x1552, iwl9560_killer_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x2030, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x2034, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x4030, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x4034, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x40A4, iwl9462_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x4234, iwl9560_2ac_cfg_soc)}, + {IWL_PCI_DEVICE(0x06F0, 0x42A4, iwl9462_2ac_cfg_soc)}, {IWL_PCI_DEVICE(0x2526, 0x0010, iwl9260_2ac_cfg)}, {IWL_PCI_DEVICE(0x2526, 0x0014, iwl9260_2ac_cfg)}, {IWL_PCI_DEVICE(0x2526, 0x0018, iwl9260_2ac_cfg)}, diff --git a/drivers/net/wireless/marvell/mwifiex/11n.c b/drivers/net/wireless/marvell/mwifiex/11n.c index e2addd8b878b..5d75c971004b 100644 --- a/drivers/net/wireless/marvell/mwifiex/11n.c +++ b/drivers/net/wireless/marvell/mwifiex/11n.c @@ -696,11 +696,10 @@ void mwifiex_11n_delba(struct mwifiex_private *priv, int tid) "Send delba to tid=%d, %pM\n", tid, rx_reor_tbl_ptr->ta); mwifiex_send_delba(priv, tid, rx_reor_tbl_ptr->ta, 0); - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, - flags); - return; + goto exit; } } +exit: spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); }

diff --git a/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c b/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c index 8e63d14c1e1c..5380fba652cc 100644 --- a/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c +++ b/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c @@ -103,8 +103,6 @@ static int mwifiex_11n_dispatch_pkt(struct mwifiex_private *priv, void *payload) * There could be holes in the buffer, which are skipped by the function. * Since the buffer is linear, the function uses rotation to simulate * circular buffer. - * - * The caller must hold rx_reorder_tbl_lock spinlock. */ static void mwifiex_11n_dispatch_pkt_until_start_win(struct mwifiex_private *priv, @@ -113,21 +111,25 @@ mwifiex_11n_dispatch_pkt_until_start_win(struct mwifiex_private *priv, { int pkt_to_send, i; void *rx_tmp_ptr; + unsigned long flags;

pkt_to_send = (start_win > tbl->start_win) ? min((start_win - tbl->start_win), tbl->win_size) : tbl->win_size;

for (i = 0; i < pkt_to_send; ++i) { + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); rx_tmp_ptr = NULL; if (tbl->rx_reorder_ptr[i]) { rx_tmp_ptr = tbl->rx_reorder_ptr[i]; tbl->rx_reorder_ptr[i] = NULL; } + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); if (rx_tmp_ptr) mwifiex_11n_dispatch_pkt(priv, rx_tmp_ptr); }

+ spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); /* * We don't have a circular buffer, hence use rotation to simulate * circular buffer @@ -138,6 +140,7 @@ mwifiex_11n_dispatch_pkt_until_start_win(struct mwifiex_private *priv, }

tbl->start_win = start_win; + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); }

/* @@ -147,8 +150,6 @@ mwifiex_11n_dispatch_pkt_until_start_win(struct mwifiex_private *priv, * The start window is adjusted automatically when a hole is located. * Since the buffer is linear, the function uses rotation to simulate * circular buffer. - * - * The caller must hold rx_reorder_tbl_lock spinlock. */ static void mwifiex_11n_scan_and_dispatch(struct mwifiex_private *priv, @@ -156,15 +157,22 @@ mwifiex_11n_scan_and_dispatch(struct mwifiex_private *priv, { int i, j, xchg; void *rx_tmp_ptr; + unsigned long flags;

for (i = 0; i < tbl->win_size; ++i) { - if (!tbl->rx_reorder_ptr[i]) + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); + if (!tbl->rx_reorder_ptr[i]) { + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, + flags); break; + } rx_tmp_ptr = tbl->rx_reorder_ptr[i]; tbl->rx_reorder_ptr[i] = NULL; + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); mwifiex_11n_dispatch_pkt(priv, rx_tmp_ptr); }

+ spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); /* * We don't have a circular buffer, hence use rotation to simulate * circular buffer @@ -177,6 +185,7 @@ mwifiex_11n_scan_and_dispatch(struct mwifiex_private *priv, } } tbl->start_win = (tbl->start_win + i) & (MAX_TID_VALUE - 1); + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); }

/* @@ -184,8 +193,6 @@ mwifiex_11n_scan_and_dispatch(struct mwifiex_private *priv, * * The function stops the associated timer and dispatches all the * pending packets in the Rx reorder table before deletion. - * - * The caller must hold rx_reorder_tbl_lock spinlock. */ static void mwifiex_del_rx_reorder_entry(struct mwifiex_private *priv, @@ -211,7 +218,11 @@ mwifiex_del_rx_reorder_entry(struct mwifiex_private *priv,

del_timer_sync(&tbl->timer_context.timer); tbl->timer_context.timer_is_set = false; + + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); list_del(&tbl->list); + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); + kfree(tbl->rx_reorder_ptr); kfree(tbl);

@@ -224,17 +235,22 @@ mwifiex_del_rx_reorder_entry(struct mwifiex_private *priv, /* * This function returns the pointer to an entry in Rx reordering * table which matches the given TA/TID pair. - * - * The caller must hold rx_reorder_tbl_lock spinlock. */ struct mwifiex_rx_reorder_tbl * mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta) { struct mwifiex_rx_reorder_tbl *tbl; + unsigned long flags;

- list_for_each_entry(tbl, &priv->rx_reorder_tbl_ptr, list) - if (!memcmp(tbl->ta, ta, ETH_ALEN) && tbl->tid == tid) + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); + list_for_each_entry(tbl, &priv->rx_reorder_tbl_ptr, list) { + if (!memcmp(tbl->ta, ta, ETH_ALEN) && tbl->tid == tid) { + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, + flags); return tbl; + } + } + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);

return NULL; } @@ -251,9 +267,14 @@ void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta) return;

spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); - list_for_each_entry_safe(tbl, tmp, &priv->rx_reorder_tbl_ptr, list) - if (!memcmp(tbl->ta, ta, ETH_ALEN)) + list_for_each_entry_safe(tbl, tmp, &priv->rx_reorder_tbl_ptr, list) { + if (!memcmp(tbl->ta, ta, ETH_ALEN)) { + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, + flags); mwifiex_del_rx_reorder_entry(priv, tbl); + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); + } + } spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);

return; @@ -262,18 +283,24 @@ void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta) /* * This function finds the last sequence number used in the packets * buffered in Rx reordering table. - * - * The caller must hold rx_reorder_tbl_lock spinlock. */ static int mwifiex_11n_find_last_seq_num(struct reorder_tmr_cnxt *ctx) { struct mwifiex_rx_reorder_tbl *rx_reorder_tbl_ptr = ctx->ptr; + struct mwifiex_private *priv = ctx->priv; + unsigned long flags; int i;

- for (i = rx_reorder_tbl_ptr->win_size - 1; i >= 0; --i) - if (rx_reorder_tbl_ptr->rx_reorder_ptr[i]) + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); + for (i = rx_reorder_tbl_ptr->win_size - 1; i >= 0; --i) { + if (rx_reorder_tbl_ptr->rx_reorder_ptr[i]) { + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, + flags); return i; + } + } + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);

return -1; } @@ -291,22 +318,17 @@ mwifiex_flush_data(struct timer_list *t) struct reorder_tmr_cnxt *ctx = from_timer(ctx, t, timer); int start_win, seq_num; - unsigned long flags;

ctx->timer_is_set = false; - spin_lock_irqsave(&ctx->priv->rx_reorder_tbl_lock, flags); seq_num = mwifiex_11n_find_last_seq_num(ctx);

- if (seq_num < 0) { - spin_unlock_irqrestore(&ctx->priv->rx_reorder_tbl_lock, flags); + if (seq_num < 0) return; - }

mwifiex_dbg(ctx->priv->adapter, INFO, "info: flush data %d\n", seq_num); start_win = (ctx->ptr->start_win + seq_num + 1) & (MAX_TID_VALUE - 1); mwifiex_11n_dispatch_pkt_until_start_win(ctx->priv, ctx->ptr, start_win); - spin_unlock_irqrestore(&ctx->priv->rx_reorder_tbl_lock, flags); }

/* @@ -333,14 +355,11 @@ mwifiex_11n_create_rx_reorder_tbl(struct mwifiex_private *priv, u8 *ta, * If we get a TID, ta pair which is already present dispatch all the * the packets and move the window size until the ssn */ - spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, ta); if (tbl) { mwifiex_11n_dispatch_pkt_until_start_win(priv, tbl, seq_num); - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); return; } - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); /* if !tbl then create one */ new_node = kzalloc(sizeof(struct mwifiex_rx_reorder_tbl), GFP_KERNEL); if (!new_node) @@ -551,20 +570,16 @@ int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *priv, int prev_start_win, start_win, end_win, win_size; u16 pkt_index; bool init_window_shift = false; - unsigned long flags; int ret = 0;

- spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, ta); if (!tbl) { - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); if (pkt_type != PKT_TYPE_BAR) mwifiex_11n_dispatch_pkt(priv, payload); return ret; }

if ((pkt_type == PKT_TYPE_AMSDU) && !tbl->amsdu) { - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); mwifiex_11n_dispatch_pkt(priv, payload); return ret; } @@ -651,8 +666,6 @@ int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *priv, if (!tbl->timer_context.timer_is_set || prev_start_win != tbl->start_win) mwifiex_11n_rxreorder_timer_restart(tbl); - - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); return ret; }

@@ -681,18 +694,14 @@ mwifiex_del_ba_tbl(struct mwifiex_private *priv, int tid, u8 *peer_mac, peer_mac, tid, initiator);

if (cleanup_rx_reorder_tbl) { - spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, peer_mac); if (!tbl) { - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, - flags); mwifiex_dbg(priv->adapter, EVENT, "event: TID, TA not found in table\n"); return; } mwifiex_del_rx_reorder_entry(priv, tbl); - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); } else { ptx_tbl = mwifiex_get_ba_tbl(priv, tid, peer_mac); if (!ptx_tbl) { @@ -726,7 +735,6 @@ int mwifiex_ret_11n_addba_resp(struct mwifiex_private *priv, int tid, win_size; struct mwifiex_rx_reorder_tbl *tbl; uint16_t block_ack_param_set; - unsigned long flags;

block_ack_param_set = le16_to_cpu(add_ba_rsp->block_ack_param_set);

@@ -740,20 +748,17 @@ int mwifiex_ret_11n_addba_resp(struct mwifiex_private *priv, mwifiex_dbg(priv->adapter, ERROR, "ADDBA RSP: failed %pM tid=%d)\n", add_ba_rsp->peer_mac_addr, tid);

- spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, add_ba_rsp->peer_mac_addr); if (tbl) mwifiex_del_rx_reorder_entry(priv, tbl);

- spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); return 0; }

win_size = (block_ack_param_set & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> BLOCKACKPARAM_WINSIZE_POS;

- spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); tbl = mwifiex_11n_get_rx_reorder_tbl(priv, tid, add_ba_rsp->peer_mac_addr); if (tbl) { @@ -764,7 +769,6 @@ int mwifiex_ret_11n_addba_resp(struct mwifiex_private *priv, else tbl->amsdu = false; } - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);

mwifiex_dbg(priv->adapter, CMD, "cmd: ADDBA RSP: %pM tid=%d ssn=%d win_size=%d\n", @@ -804,8 +808,11 @@ void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv)

spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); list_for_each_entry_safe(del_tbl_ptr, tmp_node, - &priv->rx_reorder_tbl_ptr, list) + &priv->rx_reorder_tbl_ptr, list) { + spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); mwifiex_del_rx_reorder_entry(priv, del_tbl_ptr); + spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); + } INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);

@@ -929,7 +936,6 @@ void mwifiex_11n_rxba_sync_event(struct mwifiex_private *priv, int tlv_buf_left = len; int ret; u8 *tmp; - unsigned long flags;

mwifiex_dbg_dump(priv->adapter, EVT_D, "RXBA_SYNC event:", event_buf, len); @@ -949,18 +955,14 @@ void mwifiex_11n_rxba_sync_event(struct mwifiex_private *priv, tlv_rxba->mac, tlv_rxba->tid, tlv_seq_num, tlv_bitmap_len);

- spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); rx_reor_tbl_ptr = mwifiex_11n_get_rx_reorder_tbl(priv, tlv_rxba->tid, tlv_rxba->mac); if (!rx_reor_tbl_ptr) { - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, - flags); mwifiex_dbg(priv->adapter, ERROR, "Can not find rx_reorder_tbl!"); return; } - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);

for (i = 0; i < tlv_bitmap_len; i++) { for (j = 0 ; j < 8; j++) { diff --git a/drivers/net/wireless/marvell/mwifiex/uap_txrx.c b/drivers/net/wireless/marvell/mwifiex/uap_txrx.c index a83c5afc256a..5ce85d5727e4 100644 --- a/drivers/net/wireless/marvell/mwifiex/uap_txrx.c +++ b/drivers/net/wireless/marvell/mwifiex/uap_txrx.c @@ -421,15 +421,12 @@ int mwifiex_process_uap_rx_packet(struct mwifiex_private *priv, spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); }

- spin_lock_irqsave(&priv->rx_reorder_tbl_lock, flags); if (!priv->ap_11n_enabled || (!mwifiex_11n_get_rx_reorder_tbl(priv, uap_rx_pd->priority, ta) && (le16_to_cpu(uap_rx_pd->rx_pkt_type) != PKT_TYPE_AMSDU))) { ret = mwifiex_handle_uap_rx_forward(priv, skb); - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); return ret; } - spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags);

/* Reorder and send to kernel */ pkt_type = (u8)le16_to_cpu(uap_rx_pd->rx_pkt_type); diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c index f4122c8fdd97..ef9b502ce576 100644 --- a/drivers/net/wireless/realtek/rtlwifi/base.c +++ b/drivers/net/wireless/realtek/rtlwifi/base.c @@ -2289,6 +2289,7 @@ void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb)

if (rtl_c2h_fast_cmd(hw, skb)) { rtl_c2h_content_parsing(hw, skb); + kfree_skb(skb); return; }

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 4a57ffecc7e6..5c9acb634ff7 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -132,6 +132,7 @@ static DEFINE_MUTEX(sd_ref_mutex);

static struct kmem_cache *sd_cdb_cache; static mempool_t *sd_cdb_pool; +static mempool_t *sd_page_pool;

static const char *sd_cache_types[] = { "write through", "none", "write back", @@ -758,9 +759,10 @@ static int sd_setup_unmap_cmnd(struct scsi_cmnd *cmd) unsigned int data_len = 24; char *buf;

- rq->special_vec.bv_page = alloc_page(GFP_ATOMIC | __GFP_ZERO); + rq->special_vec.bv_page = mempool_alloc(sd_page_pool, GFP_ATOMIC); if (!rq->special_vec.bv_page) return BLKPREP_DEFER; + clear_highpage(rq->special_vec.bv_page); rq->special_vec.bv_offset = 0; rq->special_vec.bv_len = data_len; rq->rq_flags |= RQF_SPECIAL_PAYLOAD; @@ -791,9 +793,10 @@ static int sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd, bool unmap) u32 nr_sectors = blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9); u32 data_len = sdp->sector_size;

- rq->special_vec.bv_page = alloc_page(GFP_ATOMIC | __GFP_ZERO); + rq->special_vec.bv_page = mempool_alloc(sd_page_pool, GFP_ATOMIC); if (!rq->special_vec.bv_page) return BLKPREP_DEFER; + clear_highpage(rq->special_vec.bv_page); rq->special_vec.bv_offset = 0; rq->special_vec.bv_len = data_len; rq->rq_flags |= RQF_SPECIAL_PAYLOAD; @@ -821,9 +824,10 @@ static int sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd, bool unmap) u32 nr_sectors = blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9); u32 data_len = sdp->sector_size;

- rq->special_vec.bv_page = alloc_page(GFP_ATOMIC | __GFP_ZERO); + rq->special_vec.bv_page = mempool_alloc(sd_page_pool, GFP_ATOMIC); if (!rq->special_vec.bv_page) return BLKPREP_DEFER; + clear_highpage(rq->special_vec.bv_page); rq->special_vec.bv_offset = 0; rq->special_vec.bv_len = data_len; rq->rq_flags |= RQF_SPECIAL_PAYLOAD; @@ -1287,7 +1291,7 @@ static void sd_uninit_command(struct scsi_cmnd *SCpnt) u8 *cmnd;

if (rq->rq_flags & RQF_SPECIAL_PAYLOAD) - __free_page(rq->special_vec.bv_page); + mempool_free(rq->special_vec.bv_page, sd_page_pool);

if (SCpnt->cmnd != scsi_req(rq)->cmd) { cmnd = SCpnt->cmnd; @@ -3635,6 +3639,13 @@ static int __init init_sd(void) goto err_out_cache; }

+ sd_page_pool = mempool_create_page_pool(SD_MEMPOOL_SIZE, 0); + if (!sd_page_pool) { + printk(KERN_ERR "sd: can't init discard page pool\n"); + err = -ENOMEM; + goto err_out_ppool; + } + err = scsi_register_driver(&sd_template.gendrv); if (err) goto err_out_driver; @@ -3642,6 +3653,9 @@ static int __init init_sd(void) return 0;

err_out_driver: + mempool_destroy(sd_page_pool); + +err_out_ppool: mempool_destroy(sd_cdb_pool);

err_out_cache: @@ -3668,6 +3682,7 @@ static void __exit exit_sd(void)

scsi_unregister_driver(&sd_template.gendrv); mempool_destroy(sd_cdb_pool); + mempool_destroy(sd_page_pool); kmem_cache_destroy(sd_cdb_cache);

class_unregister(&sd_disk_class); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 94aca1b5ac8a..01b5818a4be5 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -1507,7 +1507,8 @@ int xhci_bus_suspend(struct usb_hcd *hcd) portsc_buf[port_index] = 0;

/* Bail out if a USB3 port has a new device in link training */ - if ((t1 & PORT_PLS_MASK) == XDEV_POLLING) { + if ((hcd->speed >= HCD_USB3) && + (t1 & PORT_PLS_MASK) == XDEV_POLLING) { bus_state->bus_suspended = 0; spin_unlock_irqrestore(&xhci->lock, flags); xhci_dbg(xhci, "Bus suspend bailout, port in polling\n"); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index c3ed7d1c9f65..e88060ea1e33 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1860,6 +1860,8 @@ struct xhci_hcd { unsigned sw_lpm_support:1; /* support xHCI 1.0 spec USB2 hardware LPM */ unsigned hw_lpm_support:1; + /* Broken Suspend flag for SNPS Suspend resume issue */ + unsigned broken_suspend:1; /* cached usb2 extened protocol capabilites */ u32 *ext_caps; unsigned int num_ext_caps; @@ -1877,8 +1879,6 @@ struct xhci_hcd { void *dbc; /* platform-specific data -- must come last */ unsigned long priv[0] __aligned(sizeof(s64)); - /* Broken Suspend flag for SNPS Suspend resume issue */ - u8 broken_suspend; };

/* Platform specific overrides to generic XHCI hc_driver ops */ diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index e72ad9f81c73..17787dc349f8 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1164,6 +1164,10 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1213, 0xff) }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1214), .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) }, + { USB_DEVICE(TELIT_VENDOR_ID, 0x1900), /* Telit LN940 (QMI) */ + .driver_info = NCTRL(0) | RSVD(1) }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1901, 0xff), /* Telit LN940 (MBIM) */ + .driver_info = NCTRL(0) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff), .driver_info = RSVD(1) }, @@ -1328,6 +1332,7 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(4) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) }, + { USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x0602, 0xff) }, /* GosunCn ZTE WeLink ME3630 (MBIM mode) */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff), .driver_info = RSVD(4) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1010, 0xff, 0xff, 0xff), @@ -1531,6 +1536,7 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(2) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1428, 0xff, 0xff, 0xff), /* Telewell TW-LTE 4G v2 */ .driver_info = RSVD(2) }, + { USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x1476, 0xff) }, /* GosunCn ZTE WeLink ME3630 (ECM/NCM mode) */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) }, @@ -1758,6 +1764,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) }, { USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E), .driver_info = RSVD(5) | RSVD(6) }, + { USB_DEVICE_INTERFACE_CLASS(0x1e0e, 0x9003, 0xff) }, /* Simcom SIM7500/SIM7600 MBIM mode */ { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200), .driver_info = NCTRL(0) | NCTRL(1) | RSVD(4) }, { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220_X500D), @@ -1940,7 +1947,14 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD200, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_6802, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD300, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d, 0xff, 0xff, 0xff) }, /* HP lt2523 (Novatel E371) */ + { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d, 0xff, 0xff, 0xff) }, /* HP lt2523 (Novatel E371) */ + { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x10) }, /* HP lt4132 (Huawei ME906s-158) */ + { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x12) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x13) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x14) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0xa31d, 0xff, 0x06, 0x1b) }, + { USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 */ + .driver_info = RSVD(4) | RSVD(5) | RSVD(6) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); diff --git a/fs/iomap.c b/fs/iomap.c index 37da7a61a6c5..ec15cf2ec696 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -117,12 +117,6 @@ iomap_page_create(struct inode *inode, struct page *page) atomic_set(&iop->read_count, 0); atomic_set(&iop->write_count, 0); bitmap_zero(iop->uptodate, PAGE_SIZE / SECTOR_SIZE); - - /* - * migrate_page_move_mapping() assumes that pages with private data have - * their count elevated by 1. - */ - get_page(page); set_page_private(page, (unsigned long)iop); SetPagePrivate(page); return iop; @@ -139,7 +133,6 @@ iomap_page_release(struct page *page) WARN_ON_ONCE(atomic_read(&iop->write_count)); ClearPagePrivate(page); set_page_private(page, 0); - put_page(page); kfree(iop); }

diff --git a/fs/namei.c b/fs/namei.c index 0cab6494978c..914178cdbe94 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3701,8 +3701,7 @@ int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) if (error) return error;

- if ((S_ISCHR(mode) || S_ISBLK(mode)) && - !ns_capable(dentry->d_sb->s_user_ns, CAP_MKNOD)) + if ((S_ISCHR(mode) || S_ISBLK(mode)) && !capable(CAP_MKNOD)) return -EPERM;

if (!dir->i_op->mknod) diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 89921a0d2ebb..4d598a399bbf 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -464,7 +464,7 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,

inode = new_inode(sb); if (!inode) - goto out; + return ERR_PTR(-ENOMEM);

inode->i_ino = get_next_ino();

@@ -474,8 +474,7 @@ static struct inode *proc_sys_make_inode(struct super_block *sb, if (unlikely(head->unregistering)) { spin_unlock(&sysctl_lock); iput(inode); - inode = NULL; - goto out; + return ERR_PTR(-ENOENT); } ei->sysctl = head; ei->sysctl_entry = table; @@ -500,7 +499,6 @@ static struct inode *proc_sys_make_inode(struct super_block *sb, if (root->set_ownership) root->set_ownership(head, table, &inode->i_uid, &inode->i_gid);

-out: return inode; }

@@ -549,10 +547,11 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry, goto out; }

- err = ERR_PTR(-ENOMEM); inode = proc_sys_make_inode(dir->i_sb, h ? h : head, p); - if (!inode) + if (IS_ERR(inode)) { + err = ERR_CAST(inode); goto out; + }

d_set_d_op(dentry, &proc_sys_dentry_operations); err = d_splice_alias(inode, dentry); @@ -685,7 +684,7 @@ static bool proc_sys_fill_cache(struct file *file, if (d_in_lookup(child)) { struct dentry *res; inode = proc_sys_make_inode(dir->d_sb, head, table); - if (!inode) { + if (IS_ERR(inode)) { d_lookup_done(child); dput(child); return false; diff --git a/fs/ubifs/replay.c b/fs/ubifs/replay.c index 4844538eb926..c6f9b2225387 100644 --- a/fs/ubifs/replay.c +++ b/fs/ubifs/replay.c @@ -209,6 +209,38 @@ static int trun_remove_range(struct ubifs_info *c, struct replay_entry *r) return ubifs_tnc_remove_range(c, &min_key, &max_key); }

+/** + * inode_still_linked - check whether inode in question will be re-linked. + * @c: UBIFS file-system description object + * @rino: replay entry to test + * + * O_TMPFILE files can be re-linked, this means link count goes from 0 to 1. + * This case needs special care, otherwise all references to the inode will + * be removed upon the first replay entry of an inode with link count 0 + * is found. + */ +static bool inode_still_linked(struct ubifs_info *c, struct replay_entry *rino) +{ + struct replay_entry *r; + + ubifs_assert(c, rino->deletion); + ubifs_assert(c, key_type(c, &rino->key) == UBIFS_INO_KEY); + + /* + * Find the most recent entry for the inode behind @rino and check + * whether it is a deletion. + */ + list_for_each_entry_reverse(r, &c->replay_list, list) { + ubifs_assert(c, r->sqnum >= rino->sqnum); + if (key_inum(c, &r->key) == key_inum(c, &rino->key)) + return r->deletion == 0; + + } + + ubifs_assert(c, 0); + return false; +} + /** * apply_replay_entry - apply a replay entry to the TNC. * @c: UBIFS file-system description object @@ -236,6 +268,11 @@ static int apply_replay_entry(struct ubifs_info *c, struct replay_entry *r) { ino_t inum = key_inum(c, &r->key);

+ if (inode_still_linked(c, r)) { + err = 0; + break; + } + err = ubifs_tnc_remove_ino(c, inum); break; } diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h index 89f3b03b1445..e3667c9a33a5 100644 --- a/include/asm-generic/4level-fixup.h +++ b/include/asm-generic/4level-fixup.h @@ -3,7 +3,7 @@ #define _4LEVEL_FIXUP_H

#define __ARCH_HAS_4LEVEL_HACK -#define __PAGETABLE_PUD_FOLDED +#define __PAGETABLE_PUD_FOLDED 1

#define PUD_SHIFT PGDIR_SHIFT #define PUD_SIZE PGDIR_SIZE diff --git a/include/asm-generic/5level-fixup.h b/include/asm-generic/5level-fixup.h index 9c2e0708eb82..73474bb52344 100644 --- a/include/asm-generic/5level-fixup.h +++ b/include/asm-generic/5level-fixup.h @@ -3,7 +3,7 @@ #define _5LEVEL_FIXUP_H

#define __ARCH_HAS_5LEVEL_HACK -#define __PAGETABLE_P4D_FOLDED +#define __PAGETABLE_P4D_FOLDED 1

#define P4D_SHIFT PGDIR_SHIFT #define P4D_SIZE PGDIR_SIZE diff --git a/include/asm-generic/pgtable-nop4d-hack.h b/include/asm-generic/pgtable-nop4d-hack.h index 0c34215263b8..1d6dd38c0e5e 100644 --- a/include/asm-generic/pgtable-nop4d-hack.h +++ b/include/asm-generic/pgtable-nop4d-hack.h @@ -5,7 +5,7 @@ #ifndef __ASSEMBLY__ #include <asm-generic/5level-fixup.h>

-#define __PAGETABLE_PUD_FOLDED +#define __PAGETABLE_PUD_FOLDED 1

/* * Having the pud type consist of a pgd gets the size right, and allows diff --git a/include/asm-generic/pgtable-nop4d.h b/include/asm-generic/pgtable-nop4d.h index 1a29b2a0282b..04cb913797bc 100644 --- a/include/asm-generic/pgtable-nop4d.h +++ b/include/asm-generic/pgtable-nop4d.h @@ -4,7 +4,7 @@

#ifndef __ASSEMBLY__

-#define __PAGETABLE_P4D_FOLDED +#define __PAGETABLE_P4D_FOLDED 1

typedef struct { pgd_t pgd; } p4d_t;

diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h index f35f6e8149e4..b85b8271a73d 100644 --- a/include/asm-generic/pgtable-nopmd.h +++ b/include/asm-generic/pgtable-nopmd.h @@ -8,7 +8,7 @@

struct mm_struct;

-#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1

/* * Having the pmd type consist of a pud gets the size right, and allows diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h index e950b9c50f34..9bef475db6fe 100644 --- a/include/asm-generic/pgtable-nopud.h +++ b/include/asm-generic/pgtable-nopud.h @@ -9,7 +9,7 @@ #else #include <asm-generic/pgtable-nop4d.h>

-#define __PAGETABLE_PUD_FOLDED +#define __PAGETABLE_PUD_FOLDED 1

/* * Having the pud type consist of a p4d gets the size right, and allows diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index 88ebc6102c7c..15fd0277ffa6 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -1127,4 +1127,20 @@ static inline bool arch_has_pfn_modify_check(void) #endif #endif

+/* + * On some architectures it depends on the mm if the p4d/pud or pmd + * layer of the page table hierarchy is folded or not. + */ +#ifndef mm_p4d_folded +#define mm_p4d_folded(mm) __is_defined(__PAGETABLE_P4D_FOLDED) +#endif + +#ifndef mm_pud_folded +#define mm_pud_folded(mm) __is_defined(__PAGETABLE_PUD_FOLDED) +#endif + +#ifndef mm_pmd_folded +#define mm_pmd_folded(mm) __is_defined(__PAGETABLE_PMD_FOLDED) +#endif + #endif /* _ASM_GENERIC_PGTABLE_H */ diff --git a/include/linux/math64.h b/include/linux/math64.h index 837f2f2d1d34..bb2c84afb80c 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -281,4 +281,7 @@ static inline u64 mul_u64_u32_div(u64 a, u32 mul, u32 divisor) } #endif /* mul_u64_u32_div */

+#define DIV64_U64_ROUND_UP(ll, d) \ + ({ u64 _tmp = (d); div64_u64((ll) + _tmp - 1, _tmp); }) + #endif /* _LINUX_MATH64_H */ diff --git a/include/linux/mm.h b/include/linux/mm.h index 0416a7204be3..e899460f1bc5 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1724,11 +1724,15 @@ int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, unsigned long address);

static inline void mm_inc_nr_puds(struct mm_struct *mm) { + if (mm_pud_folded(mm)) + return; atomic_long_add(PTRS_PER_PUD * sizeof(pud_t), &mm->pgtables_bytes); }

static inline void mm_dec_nr_puds(struct mm_struct *mm) { + if (mm_pud_folded(mm)) + return; atomic_long_sub(PTRS_PER_PUD * sizeof(pud_t), &mm->pgtables_bytes); } #endif @@ -1748,11 +1752,15 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address);

static inline void mm_inc_nr_pmds(struct mm_struct *mm) { + if (mm_pmd_folded(mm)) + return; atomic_long_add(PTRS_PER_PMD * sizeof(pmd_t), &mm->pgtables_bytes); }

static inline void mm_dec_nr_pmds(struct mm_struct *mm) { + if (mm_pmd_folded(mm)) + return; atomic_long_sub(PTRS_PER_PMD * sizeof(pmd_t), &mm->pgtables_bytes); } #endif diff --git a/include/linux/t10-pi.h b/include/linux/t10-pi.h index b9626aa7e90c..3e2a80cc7b56 100644 --- a/include/linux/t10-pi.h +++ b/include/linux/t10-pi.h @@ -39,12 +39,13 @@ struct t10_pi_tuple {

static inline u32 t10_pi_ref_tag(struct request *rq) { + unsigned int shift = ilog2(queue_logical_block_size(rq->q)); + #ifdef CONFIG_BLK_DEV_INTEGRITY - return blk_rq_pos(rq) >> - (rq->q->integrity.interval_exp - 9) & 0xffffffff; -#else - return -1U; + if (rq->q->integrity.interval_exp) + shift = rq->q->integrity.interval_exp; #endif + return blk_rq_pos(rq) >> (shift - SECTOR_SHIFT) & 0xffffffff; }

extern const struct blk_integrity_profile t10_pi_type1_crc; diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 0eb390c205af..da588def3c61 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1552,6 +1552,7 @@ int xfrm_state_walk(struct net *net, struct xfrm_state_walk *walk, int (*func)(struct xfrm_state *, int, void*), void *); void xfrm_state_walk_done(struct xfrm_state_walk *walk, struct net *net); struct xfrm_state *xfrm_state_alloc(struct net *net); +void xfrm_state_free(struct xfrm_state *x); struct xfrm_state *xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr, const struct flowi *fl, diff --git a/kernel/futex.c b/kernel/futex.c index 11fc3bb456d6..f89abca89513 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -1148,11 +1148,65 @@ static int attach_to_pi_state(u32 __user *uaddr, u32 uval, return ret; }

+static int handle_exit_race(u32 __user *uaddr, u32 uval, + struct task_struct *tsk) +{ + u32 uval2; + + /* + * If PF_EXITPIDONE is not yet set, then try again. + */ + if (tsk && !(tsk->flags & PF_EXITPIDONE)) + return -EAGAIN; + + /* + * Reread the user space value to handle the following situation: + * + * CPU0 CPU1 + * + * sys_exit() sys_futex() + * do_exit() futex_lock_pi() + * futex_lock_pi_atomic() + * exit_signals(tsk) No waiters: + * tsk->flags |= PF_EXITING; *uaddr == 0x00000PID + * mm_release(tsk) Set waiter bit + * exit_robust_list(tsk) { *uaddr = 0x80000PID; + * Set owner died attach_to_pi_owner() { + * *uaddr = 0xC0000000; tsk = get_task(PID); + * } if (!tsk->flags & PF_EXITING) { + * ... attach(); + * tsk->flags |= PF_EXITPIDONE; } else { + * if (!(tsk->flags & PF_EXITPIDONE)) + * return -EAGAIN; + * return -ESRCH; <--- FAIL + * } + * + * Returning ESRCH unconditionally is wrong here because the + * user space value has been changed by the exiting task. + * + * The same logic applies to the case where the exiting task is + * already gone. + */ + if (get_futex_value_locked(&uval2, uaddr)) + return -EFAULT; + + /* If the user space value has changed, try again. */ + if (uval2 != uval) + return -EAGAIN; + + /* + * The exiting task did not have a robust list, the robust list was + * corrupted or the user space value in *uaddr is simply bogus. + * Give up and tell user space. + */ + return -ESRCH; +} + /* * Lookup the task for the TID provided from user space and attach to * it after doing proper sanity checks. */ -static int attach_to_pi_owner(u32 uval, union futex_key *key, +static int attach_to_pi_owner(u32 __user *uaddr, u32 uval, union futex_key *key, struct futex_pi_state **ps) { pid_t pid = uval & FUTEX_TID_MASK; @@ -1162,12 +1216,15 @@ static int attach_to_pi_owner(u32 uval, union futex_key *key, /* * We are the first waiter - try to look up the real owner and attach * the new pi_state to it, but bail out when TID = 0 [1] + * + * The !pid check is paranoid. None of the call sites should end up + * with pid == 0, but better safe than sorry. Let the caller retry */ if (!pid) - return -ESRCH; + return -EAGAIN; p = find_get_task_by_vpid(pid); if (!p) - return -ESRCH; + return handle_exit_race(uaddr, uval, NULL);

if (unlikely(p->flags & PF_KTHREAD)) { put_task_struct(p); @@ -1187,7 +1244,7 @@ static int attach_to_pi_owner(u32 uval, union futex_key *key, * set, we know that the task has finished the * cleanup: */ - int ret = (p->flags & PF_EXITPIDONE) ? -ESRCH : -EAGAIN; + int ret = handle_exit_race(uaddr, uval, p);

raw_spin_unlock_irq(&p->pi_lock); put_task_struct(p); @@ -1244,7 +1301,7 @@ static int lookup_pi_state(u32 __user *uaddr, u32 uval, * We are the first waiter - try to look up the owner based on * @uval and attach to it. */ - return attach_to_pi_owner(uval, key, ps); + return attach_to_pi_owner(uaddr, uval, key, ps); }

static int lock_pi_update_atomic(u32 __user *uaddr, u32 uval, u32 newval) @@ -1352,7 +1409,7 @@ static int futex_lock_pi_atomic(u32 __user *uaddr, struct futex_hash_bucket *hb, * attach to the owner. If that fails, no harm done, we only * set the FUTEX_WAITERS bit in the user space variable. */ - return attach_to_pi_owner(uval, key, ps); + return attach_to_pi_owner(uaddr, newval, key, ps); }

/** diff --git a/kernel/panic.c b/kernel/panic.c index 8b2e002d52eb..6a6df23acd1a 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -14,6 +14,7 @@ #include <linux/kmsg_dump.h> #include <linux/kallsyms.h> #include <linux/notifier.h> +#include <linux/vt_kern.h> #include <linux/module.h> #include <linux/random.h> #include <linux/ftrace.h> @@ -233,7 +234,10 @@ void panic(const char *fmt, ...) if (_crash_kexec_post_notifiers) __crash_kexec(NULL);

- bust_spinlocks(0); +#ifdef CONFIG_VT + unblank_screen(); +#endif + console_unblank();

/* * We may have ended up stopping the CPU holding the lock (in diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 4b9127e95430..5a01c4fdbfef 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -289,9 +289,6 @@ static void common_hrtimer_rearm(struct k_itimer *timr) { struct hrtimer *timer = &timr->it.real.timer;

- if (!timr->it_interval) - return; - timr->it_overrun += hrtimer_forward(timer, timer->base->get_time(), timr->it_interval); hrtimer_restart(timer); @@ -317,7 +314,7 @@ void posixtimer_rearm(struct siginfo *info) if (!timr) return;

- if (timr->it_requeue_pending == info->si_sys_private) { + if (timr->it_interval && timr->it_requeue_pending == info->si_sys_private) { timr->kclock->timer_rearm(timr);

timr->it_active = 1; diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 15310f14c25e..d2cd70cfaa90 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2127,23 +2127,25 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd, */ old_pmd = pmdp_invalidate(vma, haddr, pmd);

-#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION pmd_migration = is_pmd_migration_entry(old_pmd); - if (pmd_migration) { + if (unlikely(pmd_migration)) { swp_entry_t entry;

entry = pmd_to_swp_entry(old_pmd); page = pfn_to_page(swp_offset(entry)); - } else -#endif + write = is_write_migration_entry(entry); + young = false; + soft_dirty = pmd_swp_soft_dirty(old_pmd); + } else { page = pmd_page(old_pmd); + if (pmd_dirty(old_pmd)) + SetPageDirty(page); + write = pmd_write(old_pmd); + young = pmd_young(old_pmd); + soft_dirty = pmd_soft_dirty(old_pmd); + } VM_BUG_ON_PAGE(!page_count(page), page); page_ref_add(page, HPAGE_PMD_NR - 1); - if (pmd_dirty(old_pmd)) - SetPageDirty(page); - write = pmd_write(old_pmd); - young = pmd_young(old_pmd); - soft_dirty = pmd_soft_dirty(old_pmd);

/* * Withdraw the table only after we mark the pmd entry invalid. diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6a62b2421cdf..93e73ccb4dec 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5538,6 +5538,18 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone, cond_resched(); } } +#ifdef CONFIG_SPARSEMEM + /* + * If the zone does not span the rest of the section then + * we should at least initialize those pages. Otherwise we + * could blow up on a poisoned page in some paths which depend + * on full sections being initialized (e.g. memory hotplug). + */ + while (end_pfn % PAGES_PER_SECTION) { + __init_single_page(pfn_to_page(end_pfn), end_pfn, zone, nid); + end_pfn++; + } +#endif }

static void __meminit zone_init_free_lists(struct zone *zone) @@ -7704,11 +7716,14 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count, * handle each tail page individually in migration. */ if (PageHuge(page)) { + struct page *head = compound_head(page); + unsigned int skip_pages;

- if (!hugepage_migration_supported(page_hstate(page))) + if (!hugepage_migration_supported(page_hstate(head))) goto unmovable;

- iter = round_up(iter + 1, 1<<compound_order(page)) - 1; + skip_pages = (1 << compound_order(head)) - (page - head); + iter += skip_pages - 1; continue; }

diff --git a/mm/vmscan.c b/mm/vmscan.c index c5ef7240cbcb..961401c46334 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2456,9 +2456,11 @@ static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg, /* * Scan types proportional to swappiness and * their relative recent reclaim efficiency. + * Make sure we don't miss the last page + * because of a round-off error. */ - scan = div64_u64(scan * fraction[file], - denominator); + scan = DIV64_U64_ROUND_UP(scan * fraction[file], + denominator); break; case SCAN_FILE: case SCAN_ANON: diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index b669262682c9..7a34990a68b1 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -426,6 +426,12 @@ static void xfrm_put_mode(struct xfrm_mode *mode) module_put(mode->owner); }

+void xfrm_state_free(struct xfrm_state *x) +{ + kmem_cache_free(xfrm_state_cache, x); +} +EXPORT_SYMBOL(xfrm_state_free); + static void xfrm_state_gc_destroy(struct xfrm_state *x) { tasklet_hrtimer_cancel(&x->mtimer); @@ -452,7 +458,7 @@ static void xfrm_state_gc_destroy(struct xfrm_state *x) } xfrm_dev_state_free(x); security_xfrm_state_free(x); - kmem_cache_free(xfrm_state_cache, x); + xfrm_state_free(x); }

static void xfrm_state_gc_task(struct work_struct *work) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index df7ca2dabc48..566919838d5e 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -2288,13 +2288,13 @@ static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,

}

- kfree(x); + xfrm_state_free(x); kfree(xp);

return 0;

free_state: - kfree(x); + xfrm_state_free(x); nomem: return err; }