diff --git a/Makefile b/Makefile
index 280c7193e246..a6fb3b158a19 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 14
-SUBLEVEL = 90
+SUBLEVEL = 91
 EXTRAVERSION =
 NAME = Petit Gorille
 
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 62c62d3eb0ff..fed3636dce9a 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -372,6 +372,7 @@
 #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/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index 558444b23923..c2987daa6a6b 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -173,6 +173,8 @@ 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 4353580b659a..8eec37d37c3d 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -10447,6 +10447,8 @@ 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 f24329659bea..ac431fa778aa 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2227,6 +2227,7 @@ 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:
@@ -2508,6 +2509,7 @@ 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_K7_EVNTSEL0 ... MSR_K7_EVNTSEL3:
diff --git a/block/blk-lib.c b/block/blk-lib.c
index 2bc544ce3d2e..0bdc77888dc5 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -59,10 +59,18 @@ int __blkdev_issue_discard(struct block_device *bdev, 
sector_t sector,
                unsigned int req_sects;
                sector_t end_sect, tmp;
 
-               /* Make sure bi_size doesn't overflow */
-               req_sects = min_t(sector_t, nr_sects, UINT_MAX >> 9);
+               /*
+                * Issue in chunks of the user defined max discard setting,
+                * ensuring that bi_size doesn't overflow
+                */
+               req_sects = min_t(sector_t, nr_sects,
+                                       q->limits.max_discard_sectors);
+               if (!req_sects)
+                       goto fail;
+               if (req_sects > UINT_MAX >> 9)
+                       req_sects = UINT_MAX >> 9;
 
-               /**
+               /*
                 * If splitting a request, and the next starting sector would be
                 * misaligned, stop the discard at the previous aligned sector.
                 */
@@ -96,6 +104,14 @@ int __blkdev_issue_discard(struct block_device *bdev, 
sector_t sector,
 
        *biop = bio;
        return 0;
+
+fail:
+       if (bio) {
+               submit_bio_wait(bio);
+               bio_put(bio);
+       }
+       *biop = NULL;
+       return -EOPNOTSUPP;
 }
 EXPORT_SYMBOL(__blkdev_issue_discard);
 
diff --git a/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 33d4bd505b5b..57d157e94bd6 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);
@@ -194,8 +211,42 @@ 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;
@@ -204,8 +255,7 @@ 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;
@@ -240,8 +290,6 @@ 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");
@@ -254,64 +302,42 @@ 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:
@@ -348,6 +374,9 @@ 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)
@@ -358,8 +387,7 @@ 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);
 
@@ -396,10 +424,13 @@ 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;
@@ -1253,23 +1284,16 @@ 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);
@@ -1277,4 +1301,4 @@ 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 a9ae6dd2d593..53f319369de5 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
@@ -778,13 +779,17 @@ 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];
        }
 
@@ -866,6 +871,7 @@ 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 2cd134dd94d2..4218a616f1d3 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -300,6 +300,8 @@ 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);
 }
@@ -313,6 +315,8 @@ 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);
 }
@@ -327,6 +331,8 @@ 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);
 }
@@ -341,6 +347,8 @@ 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);
 }
@@ -355,6 +363,8 @@ 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);
 }
@@ -368,6 +378,8 @@ 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);
 }
@@ -381,6 +393,8 @@ 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);
 }
@@ -394,6 +408,8 @@ 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);
 }
@@ -408,6 +424,8 @@ 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);
 }
@@ -422,6 +440,8 @@ 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/infiniband/ulp/srpt/ib_srpt.c 
b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 60105ba77889..47f3f562d86f 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1775,8 +1775,8 @@ static void __srpt_close_all_ch(struct srpt_device *sdev)
 
        list_for_each_entry(ch, &sdev->rch_list, list) {
                if (srpt_disconnect_ch(ch) >= 0)
-                       pr_info("Closing channel %s-%d because target %s has 
been disabled\n",
-                               ch->sess_name, ch->qp->qp_num,
+                       pr_info("Closing channel %s because target %s has been 
disabled\n",
+                               ch->sess_name,
                                sdev->device->name);
                srpt_close_ch(ch);
        }
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index bad5c1bf4ed9..814a04e8fdd7 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] &
@@ -1755,20 +1755,26 @@ 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 9e03fada16dc..3f3ff7530b76 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2083,7 +2083,6 @@ 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;
@@ -2113,6 +2112,17 @@ 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 d7a3379ea668..18a0952f68a8 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2806,6 +2806,12 @@ 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;
@@ -2876,10 +2882,18 @@ 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 cebf0ce76d27..e9e466cae322 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -952,6 +952,15 @@ 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 4cbc6cb8bf89..0ff247326d6c 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -517,6 +517,56 @@ 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/scsi/sd.c b/drivers/scsi/sd.c
index c7b284587365..39754cc90043 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -133,6 +133,7 @@ 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",
@@ -759,9 +760,10 @@ 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;
@@ -792,9 +794,10 @@ 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;
@@ -822,9 +825,10 @@ 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;
@@ -1299,7 +1303,7 @@ static void sd_uninit_command(struct scsi_cmnd *SCpnt)
                sd_zbc_write_unlock_zone(SCpnt);
 
        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;
@@ -3655,6 +3659,13 @@ 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;
@@ -3662,6 +3673,9 @@ 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:
@@ -3688,6 +3702,7 @@ 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/spi/spi-imx.c b/drivers/spi/spi-imx.c
index d51ca243a028..df18d07d544d 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -72,6 +72,7 @@ struct spi_imx_data;
 
 struct spi_imx_devtype_data {
        void (*intctrl)(struct spi_imx_data *, int);
+       int (*prepare_message)(struct spi_imx_data *, struct spi_message *);
        int (*config)(struct spi_device *);
        void (*trigger)(struct spi_imx_data *);
        int (*rx_available)(struct spi_imx_data *);
@@ -439,11 +440,12 @@ static void mx51_ecspi_trigger(struct spi_imx_data 
*spi_imx)
        writel(reg, spi_imx->base + MX51_ECSPI_CTRL);
 }
 
-static int mx51_ecspi_config(struct spi_device *spi)
+static int mx51_ecspi_prepare_message(struct spi_imx_data *spi_imx,
+                                     struct spi_message *msg)
 {
-       struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
+       struct spi_device *spi = msg->spi;
        u32 ctrl = MX51_ECSPI_CTRL_ENABLE;
-       u32 clk = spi_imx->speed_hz, delay, reg;
+       u32 testreg;
        u32 cfg = readl(spi_imx->base + MX51_ECSPI_CONFIG);
 
        /*
@@ -461,14 +463,21 @@ static int mx51_ecspi_config(struct spi_device *spi)
        if (spi->mode & SPI_READY)
                ctrl |= MX51_ECSPI_CTRL_DRCTL(spi_imx->spi_drctl);
 
-       /* set clock speed */
-       ctrl |= mx51_ecspi_clkdiv(spi_imx, spi_imx->speed_hz, &clk);
-       spi_imx->spi_bus_clk = clk;
-
        /* set chip select to use */
        ctrl |= MX51_ECSPI_CTRL_CS(spi->chip_select);
 
-       ctrl |= (spi_imx->bits_per_word - 1) << MX51_ECSPI_CTRL_BL_OFFSET;
+       /*
+        * The ctrl register must be written first, with the EN bit set other
+        * registers must not be written to.
+        */
+       writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
+
+       testreg = readl(spi_imx->base + MX51_ECSPI_TESTREG);
+       if (spi->mode & SPI_LOOP)
+               testreg |= MX51_ECSPI_TESTREG_LBC;
+       else
+               testreg &= ~MX51_ECSPI_TESTREG_LBC;
+       writel(testreg, spi_imx->base + MX51_ECSPI_TESTREG);
 
        cfg |= MX51_ECSPI_CONFIG_SBBCTRL(spi->chip_select);
 
@@ -484,26 +493,38 @@ static int mx51_ecspi_config(struct spi_device *spi)
                cfg &= ~MX51_ECSPI_CONFIG_SCLKPOL(spi->chip_select);
                cfg &= ~MX51_ECSPI_CONFIG_SCLKCTL(spi->chip_select);
        }
+
        if (spi->mode & SPI_CS_HIGH)
                cfg |= MX51_ECSPI_CONFIG_SSBPOL(spi->chip_select);
        else
                cfg &= ~MX51_ECSPI_CONFIG_SSBPOL(spi->chip_select);
 
+       writel(cfg, spi_imx->base + MX51_ECSPI_CONFIG);
+
+       return 0;
+}
+
+static int mx51_ecspi_config(struct spi_device *spi)
+{
+       struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
+       u32 ctrl = readl(spi_imx->base + MX51_ECSPI_CTRL);
+       u32 clk = spi_imx->speed_hz, delay;
+
+       /* Clear BL field and set the right value */
+       ctrl &= ~MX51_ECSPI_CTRL_BL_MASK;
+       ctrl |= (spi_imx->bits_per_word - 1) << MX51_ECSPI_CTRL_BL_OFFSET;
+
+       /* set clock speed */
+       ctrl &= ~(0xf << MX51_ECSPI_CTRL_POSTDIV_OFFSET |
+                 0xf << MX51_ECSPI_CTRL_PREDIV_OFFSET);
+       ctrl |= mx51_ecspi_clkdiv(spi_imx, spi_imx->speed_hz, &clk);
+       spi_imx->spi_bus_clk = clk;
+
        if (spi_imx->usedma)
                ctrl |= MX51_ECSPI_CTRL_SMC;
 
-       /* CTRL register always go first to bring out controller from reset */
        writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
 
-       reg = readl(spi_imx->base + MX51_ECSPI_TESTREG);
-       if (spi->mode & SPI_LOOP)
-               reg |= MX51_ECSPI_TESTREG_LBC;
-       else
-               reg &= ~MX51_ECSPI_TESTREG_LBC;
-       writel(reg, spi_imx->base + MX51_ECSPI_TESTREG);
-
-       writel(cfg, spi_imx->base + MX51_ECSPI_CONFIG);
-
        /*
         * Wait until the changes in the configuration register CONFIGREG
         * propagate into the hardware. It takes exactly one tick of the
@@ -525,7 +546,6 @@ static int mx51_ecspi_config(struct spi_device *spi)
         * Configure the DMA register: setup the watermark
         * and enable DMA request.
         */
-
        writel(MX51_ECSPI_DMA_RX_WML(spi_imx->wml) |
                MX51_ECSPI_DMA_TX_WML(spi_imx->wml) |
                MX51_ECSPI_DMA_RXT_WML(spi_imx->wml) |
@@ -599,6 +619,12 @@ static void mx31_trigger(struct spi_imx_data *spi_imx)
        writel(reg, spi_imx->base + MXC_CSPICTRL);
 }
 
+static int mx31_prepare_message(struct spi_imx_data *spi_imx,
+                               struct spi_message *msg)
+{
+       return 0;
+}
+
 static int mx31_config(struct spi_device *spi)
 {
        struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
@@ -695,6 +721,12 @@ static void mx21_trigger(struct spi_imx_data *spi_imx)
        writel(reg, spi_imx->base + MXC_CSPICTRL);
 }
 
+static int mx21_prepare_message(struct spi_imx_data *spi_imx,
+                               struct spi_message *msg)
+{
+       return 0;
+}
+
 static int mx21_config(struct spi_device *spi)
 {
        struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
@@ -764,6 +796,12 @@ static void mx1_trigger(struct spi_imx_data *spi_imx)
        writel(reg, spi_imx->base + MXC_CSPICTRL);
 }
 
+static int mx1_prepare_message(struct spi_imx_data *spi_imx,
+                              struct spi_message *msg)
+{
+       return 0;
+}
+
 static int mx1_config(struct spi_device *spi)
 {
        struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
@@ -798,6 +836,7 @@ static void mx1_reset(struct spi_imx_data *spi_imx)
 
 static struct spi_imx_devtype_data imx1_cspi_devtype_data = {
        .intctrl = mx1_intctrl,
+       .prepare_message = mx1_prepare_message,
        .config = mx1_config,
        .trigger = mx1_trigger,
        .rx_available = mx1_rx_available,
@@ -810,6 +849,7 @@ static struct spi_imx_devtype_data imx1_cspi_devtype_data = 
{
 
 static struct spi_imx_devtype_data imx21_cspi_devtype_data = {
        .intctrl = mx21_intctrl,
+       .prepare_message = mx21_prepare_message,
        .config = mx21_config,
        .trigger = mx21_trigger,
        .rx_available = mx21_rx_available,
@@ -823,6 +863,7 @@ static struct spi_imx_devtype_data imx21_cspi_devtype_data 
= {
 static struct spi_imx_devtype_data imx27_cspi_devtype_data = {
        /* i.mx27 cspi shares the functions with i.mx21 one */
        .intctrl = mx21_intctrl,
+       .prepare_message = mx21_prepare_message,
        .config = mx21_config,
        .trigger = mx21_trigger,
        .rx_available = mx21_rx_available,
@@ -835,6 +876,7 @@ static struct spi_imx_devtype_data imx27_cspi_devtype_data 
= {
 
 static struct spi_imx_devtype_data imx31_cspi_devtype_data = {
        .intctrl = mx31_intctrl,
+       .prepare_message = mx31_prepare_message,
        .config = mx31_config,
        .trigger = mx31_trigger,
        .rx_available = mx31_rx_available,
@@ -848,6 +890,7 @@ static struct spi_imx_devtype_data imx31_cspi_devtype_data 
= {
 static struct spi_imx_devtype_data imx35_cspi_devtype_data = {
        /* i.mx35 and later cspi shares the functions with i.mx31 one */
        .intctrl = mx31_intctrl,
+       .prepare_message = mx31_prepare_message,
        .config = mx31_config,
        .trigger = mx31_trigger,
        .rx_available = mx31_rx_available,
@@ -860,6 +903,7 @@ static struct spi_imx_devtype_data imx35_cspi_devtype_data 
= {
 
 static struct spi_imx_devtype_data imx51_ecspi_devtype_data = {
        .intctrl = mx51_ecspi_intctrl,
+       .prepare_message = mx51_ecspi_prepare_message,
        .config = mx51_ecspi_config,
        .trigger = mx51_ecspi_trigger,
        .rx_available = mx51_ecspi_rx_available,
@@ -872,6 +916,7 @@ static struct spi_imx_devtype_data imx51_ecspi_devtype_data 
= {
 
 static struct spi_imx_devtype_data imx53_ecspi_devtype_data = {
        .intctrl = mx51_ecspi_intctrl,
+       .prepare_message = mx51_ecspi_prepare_message,
        .config = mx51_ecspi_config,
        .trigger = mx51_ecspi_trigger,
        .rx_available = mx51_ecspi_rx_available,
@@ -1310,7 +1355,13 @@ spi_imx_prepare_message(struct spi_master *master, 
struct spi_message *msg)
                return ret;
        }
 
-       return 0;
+       ret = spi_imx->devtype_data->prepare_message(spi_imx, msg);
+       if (ret) {
+               clk_disable(spi_imx->clk_ipg);
+               clk_disable(spi_imx->clk_per);
+       }
+
+       return ret;
 }
 
 static int
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 6b2f6c41e2a9..997ff183c9cb 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1512,7 +1512,8 @@ 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 1ccff2d9dee9..cbc91536e512 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1859,6 +1859,8 @@ 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;
@@ -1871,8 +1873,6 @@ struct xhci_hcd {
 
        /* 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 392fddc80c44..988be9ca2b4f 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1167,6 +1167,10 @@ 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) },
@@ -1331,6 +1335,7 @@ 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),
@@ -1534,6 +1539,7 @@ 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) },
@@ -1761,6 +1767,7 @@ 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),
@@ -1942,7 +1949,14 @@ 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/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 69309538ffb8..1581e8668b09 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2020,14 +2020,14 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon 
*tcon, u64 persistent_fid,
        /* We check for obvious errors in the output buffer length and offset */
        if (*plen == 0)
                goto ioctl_exit; /* server returned no data */
-       else if (*plen > 0xFF00) {
+       else if (*plen > rsp_iov.iov_len || *plen > 0xFF00) {
                cifs_dbg(VFS, "srv returned invalid ioctl length: %d\n", *plen);
                *plen = 0;
                rc = -EIO;
                goto ioctl_exit;
        }
 
-       if (get_rfc1002_length(rsp) < le32_to_cpu(rsp->OutputOffset) + *plen) {
+       if (get_rfc1002_length(rsp) - *plen < le32_to_cpu(rsp->OutputOffset)) {
                cifs_dbg(VFS, "Malformed ioctl resp: len %d offset %d\n", *plen,
                        le32_to_cpu(rsp->OutputOffset));
                *plen = 0;
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 82ac5f682b73..f69c545f5868 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;
+       }
 
        err = NULL;
        d_set_d_op(dentry, &proc_sys_dentry_operations);
@@ -685,7 +684,7 @@ static bool proc_sys_fill_cache(struct file *file,
                        return false;
                if (d_in_lookup(child)) {
                        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/dir.c b/fs/ubifs/dir.c
index ef820f803176..4e6e32c0c08a 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1147,8 +1147,7 @@ static int ubifs_symlink(struct inode *dir, struct dentry 
*dentry,
        struct ubifs_inode *ui;
        struct ubifs_inode *dir_ui = ubifs_inode(dir);
        struct ubifs_info *c = dir->i_sb->s_fs_info;
-       int err, len = strlen(symname);
-       int sz_change = CALC_DENT_SIZE(len);
+       int err, sz_change, len = strlen(symname);
        struct fscrypt_str disk_link = FSTR_INIT((char *)symname, len + 1);
        struct fscrypt_symlink_data *sd = NULL;
        struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
@@ -1189,6 +1188,8 @@ static int ubifs_symlink(struct inode *dir, struct dentry 
*dentry,
        if (err)
                goto out_budg;
 
+       sz_change = CALC_DENT_SIZE(fname_len(&nm));
+
        inode = ubifs_new_inode(c, dir, S_IFLNK | S_IRWXUGO);
        if (IS_ERR(inode)) {
                err = PTR_ERR(inode);
diff --git a/fs/ubifs/replay.c b/fs/ubifs/replay.c
index ae5c02f22f3e..d998fbf7de30 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(rino->deletion);
+       ubifs_assert(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(r->sqnum >= rino->sqnum);
+               if (key_inum(c, &r->key) == key_inum(c, &rino->key))
+                       return r->deletion == 0;
+
+       }
+
+       ubifs_assert(0);
+       return false;
+}
+
 /**
  * apply_replay_entry - apply a replay entry to the TNC.
  * @c: UBIFS file-system description object
@@ -239,6 +271,11 @@ 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/linux/math64.h b/include/linux/math64.h
index 082de345b73c..3a7a14062668 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -254,4 +254,7 @@ 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/kernel/panic.c b/kernel/panic.c
index bdd18afa19a4..32ff6fd30201 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>
@@ -230,7 +231,10 @@ 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 55d45fe2cc17..d7e478a430e9 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -298,9 +298,6 @@ 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);
@@ -326,7 +323,7 @@ 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/vmscan.c b/mm/vmscan.c
index be56e2e1931e..9734e62654fa 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2367,9 +2367,11 @@ 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/sound/soc/codecs/sta32x.c b/sound/soc/codecs/sta32x.c
index 5b888476d9ff..b728140c79a9 100644
--- a/sound/soc/codecs/sta32x.c
+++ b/sound/soc/codecs/sta32x.c
@@ -879,6 +879,9 @@ static int sta32x_probe(struct snd_soc_codec *codec)
        struct sta32x_priv *sta32x = snd_soc_codec_get_drvdata(codec);
        struct sta32x_platform_data *pdata = sta32x->pdata;
        int i, ret = 0, thermal = 0;
+
+       sta32x->codec = codec;
+
        ret = regulator_bulk_enable(ARRAY_SIZE(sta32x->supplies),
                                    sta32x->supplies);
        if (ret != 0) {
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index b205c1340456..5e53cafe6cf9 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -800,13 +800,10 @@ static int record__synthesize(struct record *rec, bool 
tail)
                return 0;
 
        if (file->is_pipe) {
-               err = perf_event__synthesize_features(
-                       tool, session, rec->evlist, process_synthesized_event);
-               if (err < 0) {
-                       pr_err("Couldn't synthesize features.\n");
-                       return err;
-               }
-
+               /*
+                * We need to synthesize events first, because some
+                * features works on top of them (on report side).
+                */
                err = perf_event__synthesize_attrs(tool, session,
                                                   process_synthesized_event);
                if (err < 0) {
@@ -814,6 +811,13 @@ static int record__synthesize(struct record *rec, bool 
tail)
                        goto out;
                }
 
+               err = perf_event__synthesize_features(tool, session, 
rec->evlist,
+                                                     
process_synthesized_event);
+               if (err < 0) {
+                       pr_err("Couldn't synthesize features.\n");
+                       return err;
+               }
+
                if (have_tracepoints(&rec->evlist->entries)) {
                        /*
                         * FIXME err <= 0 here actually means that

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