Merge "Merge android-4.4.186 (aeb051d) into msm-4.4"

Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt

@@ -4,6 +4,7 @@ Required properties:
  - compatible: Should be one of the following:
    - "microchip,mcp2510" for MCP2510.
    - "microchip,mcp2515" for MCP2515.
+   - "microchip,mcp25625" for MCP25625.
  - reg: SPI chip select.
  - clocks: The clock feeding the CAN controller.
  - interrupt-parent: The parent interrupt controller.

Makefile

@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 4
-SUBLEVEL = 185
+SUBLEVEL = 186
 EXTRAVERSION =
 NAME = Blurry Fish Butt
 

arch/arc/kernel/unwind.c

@@ -183,11 +183,6 @@ static void *__init unw_hdr_alloc_early(unsigned long sz)
 				       MAX_DMA_ADDRESS);
 }
 
-static void *unw_hdr_alloc(unsigned long sz)
-{
-	return kmalloc(sz, GFP_KERNEL);
-}
-
 static void init_unwind_table(struct unwind_table *table, const char *name,
 			      const void *core_start, unsigned long core_size,
 			      const void *init_start, unsigned long init_size,
@@ -368,6 +363,10 @@ ret_err:
 }
 
 #ifdef CONFIG_MODULES
+static void *unw_hdr_alloc(unsigned long sz)
+{
+	return kmalloc(sz, GFP_KERNEL);
+}
 
 static struct unwind_table *last_table;
 

arch/arm/mach-davinci/board-da850-evm.c

@@ -1479,6 +1479,8 @@ static __init void da850_evm_init(void)
 	if (ret)
 		pr_warn("%s: dsp/rproc registration failed: %d\n",
 			__func__, ret);
+
+	regulator_has_full_constraints();
 }
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE

arch/arm/mach-davinci/devices-da8xx.c

@@ -660,6 +660,9 @@ static struct platform_device da8xx_lcdc_device = {
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(da8xx_lcdc_resources),
 	.resource	= da8xx_lcdc_resources,
+	.dev		= {
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	}
 };
 
 int __init da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata)

arch/arm/mach-omap2/prm3xxx.c

@@ -430,7 +430,7 @@ static void omap3_prm_reconfigure_io_chain(void)
  * registers, and omap3xxx_prm_reconfigure_io_chain() must be called.
  * No return value.
  */
-static void __init omap3xxx_prm_enable_io_wakeup(void)
+static void omap3xxx_prm_enable_io_wakeup(void)
 {
 	if (prm_features & PRM_HAS_IO_WAKEUP)
 		omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD,

arch/mips/include/uapi/asm/sgidefs.h

@@ -10,14 +10,6 @@
 #ifndef __ASM_SGIDEFS_H
 #define __ASM_SGIDEFS_H
 
-/*
- * Using a Linux compiler for building Linux seems logic but not to
- * everybody.
- */
-#ifndef __linux__
-#error Use a Linux compiler or give up.
-#endif
-
 /*
  * Definitions for the ISA levels
  *

arch/s390/include/asm/facility.h

@@ -51,6 +51,18 @@ static inline int test_facility(unsigned long nr)
 	return __test_facility(nr, &S390_lowcore.stfle_fac_list);
 }
 
+static inline unsigned long __stfle_asm(u64 *stfle_fac_list, int size)
+{
+	register unsigned long reg0 asm("0") = size - 1;
+
+	asm volatile(
+		".insn s,0xb2b00000,0(%1)" /* stfle */
+		: "+d" (reg0)
+		: "a" (stfle_fac_list)
+		: "memory", "cc");
+	return reg0;
+}
+
 /**
  * stfle - Store facility list extended
  * @stfle_fac_list: array where facility list can be stored
@@ -70,13 +82,8 @@ static inline void stfle(u64 *stfle_fac_list, int size)
 	memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
 	if (S390_lowcore.stfl_fac_list & 0x01000000) {
 		/* More facility bits available with stfle */
-		register unsigned long reg0 asm("0") = size - 1;
+		nr = __stfle_asm(stfle_fac_list, size);
-
+		nr = min_t(unsigned long, (nr + 1) * 8, size * 8);
-		asm volatile(".insn s,0xb2b00000,0(%1)" /* stfle */
-			     : "+d" (reg0)
-			     : "a" (stfle_fac_list)
-			     : "memory", "cc");
-		nr = (reg0 + 1) * 8; /* # bytes stored by stfle */
 	}
 	memset((char *) stfle_fac_list + nr, 0, size * 8 - nr);
 	preempt_enable();

arch/x86/kernel/ptrace.c

@@ -23,6 +23,7 @@
 #include <linux/rcupdate.h>
 #include <linux/export.h>
 #include <linux/context_tracking.h>
+#include <linux/nospec.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -697,9 +698,11 @@ static unsigned long ptrace_get_debugreg(struct task_struct *tsk, int n)
 {
 	struct thread_struct *thread = &tsk->thread;
 	unsigned long val = 0;
+	int index = n;
 
 	if (n < HBP_NUM) {
-		struct perf_event *bp = thread->ptrace_bps[n];
+		struct perf_event *bp = thread->ptrace_bps[index];
+		index = array_index_nospec(index, HBP_NUM);
 
 		if (bp)
 			val = bp->hw.info.address;

arch/x86/kernel/tls.c

@@ -4,6 +4,7 @@
 #include <linux/user.h>
 #include <linux/regset.h>
 #include <linux/syscalls.h>
+#include <linux/nospec.h>
 
 #include <asm/uaccess.h>
 #include <asm/desc.h>
@@ -177,6 +178,7 @@ int do_get_thread_area(struct task_struct *p, int idx,
 		       struct user_desc __user *u_info)
 {
 	struct user_desc info;
+	int index;
 
 	if (idx == -1 && get_user(idx, &u_info->entry_number))
 		return -EFAULT;
@@ -184,8 +186,11 @@ int do_get_thread_area(struct task_struct *p, int idx,
 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
 		return -EINVAL;
 
-	fill_user_desc(&info, idx,
+	index = idx - GDT_ENTRY_TLS_MIN;
-		       &p->thread.tls_array[idx - GDT_ENTRY_TLS_MIN]);
+	index = array_index_nospec(index,
+			GDT_ENTRY_TLS_MAX - GDT_ENTRY_TLS_MIN + 1);
+
+	fill_user_desc(&info, idx, &p->thread.tls_array[index]);
 
 	if (copy_to_user(u_info, &info, sizeof(info)))
 		return -EFAULT;

arch/x86/kvm/i8254.c

@@ -678,7 +678,6 @@ static const struct kvm_io_device_ops speaker_dev_ops = {
 	.write    = speaker_ioport_write,
 };
 
-/* Caller must hold slots_lock */
 struct kvm_pit *kvm_create_pit(struct kvm *kvm, u32 flags)
 {
 	struct kvm_pit *pit;
@@ -733,6 +732,7 @@ struct kvm_pit *kvm_create_pit(struct kvm *kvm, u32 flags)
 	pit->mask_notifier.func = pit_mask_notifer;
 	kvm_register_irq_mask_notifier(kvm, 0, &pit->mask_notifier);
 
+	mutex_lock(&kvm->slots_lock);
 	kvm_iodevice_init(&pit->dev, &pit_dev_ops);
 	ret = kvm_io_bus_register_dev(kvm, KVM_PIO_BUS, KVM_PIT_BASE_ADDRESS,
 				      KVM_PIT_MEM_LENGTH, &pit->dev);
@@ -747,13 +747,14 @@ struct kvm_pit *kvm_create_pit(struct kvm *kvm, u32 flags)
 		if (ret < 0)
 			goto fail_unregister;
 	}
+	mutex_unlock(&kvm->slots_lock);
 
 	return pit;
 
 fail_unregister:
 	kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, &pit->dev);
-
 fail:
+	mutex_unlock(&kvm->slots_lock);
 	kvm_unregister_irq_mask_notifier(kvm, 0, &pit->mask_notifier);
 	kvm_unregister_irq_ack_notifier(kvm, &pit_state->irq_ack_notifier);
 	kvm_free_irq_source_id(kvm, pit->irq_source_id);

arch/x86/kvm/x86.c

@@ -3867,7 +3867,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
 				   sizeof(struct kvm_pit_config)))
 			goto out;
 	create_pit:
-		mutex_lock(&kvm->slots_lock);
+		mutex_lock(&kvm->lock);
 		r = -EEXIST;
 		if (kvm->arch.vpit)
 			goto create_pit_unlock;
@@ -3876,7 +3876,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		if (kvm->arch.vpit)
 			r = 0;
 	create_pit_unlock:
-		mutex_unlock(&kvm->slots_lock);
+		mutex_unlock(&kvm->lock);
 		break;
 	case KVM_GET_IRQCHIP: {
 		/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
@@ -7799,7 +7799,7 @@ int __x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size)
 
 	slot = id_to_memslot(slots, id);
 	if (size) {
-		if (WARN_ON(slot->npages))
+		if (slot->npages)
 			return -EEXIST;
 
 		/*

drivers/input/keyboard/imx_keypad.c

@@ -530,11 +530,12 @@ static int imx_keypad_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int __maybe_unused imx_kbd_suspend(struct device *dev)
+static int __maybe_unused imx_kbd_noirq_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct imx_keypad *kbd = platform_get_drvdata(pdev);
 	struct input_dev *input_dev = kbd->input_dev;
+	unsigned short reg_val = readw(kbd->mmio_base + KPSR);
 
 	/* imx kbd can wake up system even clock is disabled */
 	mutex_lock(&input_dev->mutex);
@@ -544,13 +545,20 @@ static int __maybe_unused imx_kbd_suspend(struct device *dev)
 
 	mutex_unlock(&input_dev->mutex);
 
-	if (device_may_wakeup(&pdev->dev))
+	if (device_may_wakeup(&pdev->dev)) {
+		if (reg_val & KBD_STAT_KPKD)
+			reg_val |= KBD_STAT_KRIE;
+		if (reg_val & KBD_STAT_KPKR)
+			reg_val |= KBD_STAT_KDIE;
+		writew(reg_val, kbd->mmio_base + KPSR);
+
 		enable_irq_wake(kbd->irq);
+	}
 
 	return 0;
 }
 
-static int __maybe_unused imx_kbd_resume(struct device *dev)
+static int __maybe_unused imx_kbd_noirq_resume(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct imx_keypad *kbd = platform_get_drvdata(pdev);
@@ -574,7 +582,9 @@ err_clk:
 	return ret;
 }
 
-static SIMPLE_DEV_PM_OPS(imx_kbd_pm_ops, imx_kbd_suspend, imx_kbd_resume);
+static const struct dev_pm_ops imx_kbd_pm_ops = {
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(imx_kbd_noirq_suspend, imx_kbd_noirq_resume)
+};
 
 static struct platform_driver imx_keypad_driver = {
 	.driver		= {

drivers/input/mouse/elantech.c

@@ -1191,6 +1191,8 @@ static const char * const middle_button_pnp_ids[] = {
 	"LEN2132", /* ThinkPad P52 */
 	"LEN2133", /* ThinkPad P72 w/ NFC */
 	"LEN2134", /* ThinkPad P72 */
+	"LEN0407",
+	"LEN0408",
 	NULL
 };
 

drivers/md/dm-verity-target.c

@@ -220,8 +220,8 @@ static int verity_handle_err(struct dm_verity *v, enum verity_block_type type,
 		BUG();
 	}
 
-	DMERR("%s: %s block %llu is corrupted", v->data_dev->name, type_str,
+	DMERR_LIMIT("%s: %s block %llu is corrupted", v->data_dev->name,
-		block);
+		    type_str, block);
 
 	if (v->corrupted_errs == DM_VERITY_MAX_CORRUPTED_ERRS)
 		DMERR("%s: reached maximum errors", v->data_dev->name);

drivers/md/md.c

@@ -7226,9 +7226,9 @@ static void status_unused(struct seq_file *seq)
 static int status_resync(struct seq_file *seq, struct mddev *mddev)
 {
 	sector_t max_sectors, resync, res;
-	unsigned long dt, db;
+	unsigned long dt, db = 0;
-	sector_t rt;
+	sector_t rt, curr_mark_cnt, resync_mark_cnt;
-	int scale;
+	int scale, recovery_active;
 	unsigned int per_milli;
 
 	if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) ||
@@ -7298,22 +7298,30 @@ static int status_resync(struct seq_file *seq, struct mddev *mddev)
 	 * db: blocks written from mark until now
 	 * rt: remaining time
 	 *
-	 * rt is a sector_t, so could be 32bit or 64bit.
+	 * rt is a sector_t, which is always 64bit now. We are keeping
-	 * So we divide before multiply in case it is 32bit and close
+	 * the original algorithm, but it is not really necessary.
-	 * to the limit.
+	 *
-	 * We scale the divisor (db) by 32 to avoid losing precision
+	 * Original algorithm:
-	 * near the end of resync when the number of remaining sectors
+	 *   So we divide before multiply in case it is 32bit and close
-	 * is close to 'db'.
+	 *   to the limit.
-	 * We then divide rt by 32 after multiplying by db to compensate.
+	 *   We scale the divisor (db) by 32 to avoid losing precision
-	 * The '+1' avoids division by zero if db is very small.
+	 *   near the end of resync when the number of remaining sectors
+	 *   is close to 'db'.
+	 *   We then divide rt by 32 after multiplying by db to compensate.
+	 *   The '+1' avoids division by zero if db is very small.
 	 */
 	dt = ((jiffies - mddev->resync_mark) / HZ);
 	if (!dt) dt++;
-	db = (mddev->curr_mark_cnt - atomic_read(&mddev->recovery_active))
+
-		- mddev->resync_mark_cnt;
+	curr_mark_cnt = mddev->curr_mark_cnt;
+	recovery_active = atomic_read(&mddev->recovery_active);
+	resync_mark_cnt = mddev->resync_mark_cnt;
+
+	if (curr_mark_cnt >= (recovery_active + resync_mark_cnt))
+		db = curr_mark_cnt - (recovery_active + resync_mark_cnt);
 
 	rt = max_sectors - resync;    /* number of remaining sectors */
-	sector_div(rt, db/32+1);
+	rt = div64_u64(rt, db/32+1);
 	rt *= dt;
 	rt >>= 5;
 

drivers/misc/vmw_vmci/vmci_context.c

@@ -28,6 +28,9 @@
 #include "vmci_driver.h"
 #include "vmci_event.h"
 
+/* Use a wide upper bound for the maximum contexts. */
+#define VMCI_MAX_CONTEXTS 2000
+
 /*
  * List of current VMCI contexts.  Contexts can be added by
  * vmci_ctx_create() and removed via vmci_ctx_destroy().
@@ -124,19 +127,22 @@ struct vmci_ctx *vmci_ctx_create(u32 cid, u32 priv_flags,
 	/* Initialize host-specific VMCI context. */
 	init_waitqueue_head(&context->host_context.wait_queue);
 
-	context->queue_pair_array = vmci_handle_arr_create(0);
+	context->queue_pair_array =
+		vmci_handle_arr_create(0, VMCI_MAX_GUEST_QP_COUNT);
 	if (!context->queue_pair_array) {
 		error = -ENOMEM;
 		goto err_free_ctx;
 	}
 
-	context->doorbell_array = vmci_handle_arr_create(0);
+	context->doorbell_array =
+		vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT);
 	if (!context->doorbell_array) {
 		error = -ENOMEM;
 		goto err_free_qp_array;
 	}
 
-	context->pending_doorbell_array = vmci_handle_arr_create(0);
+	context->pending_doorbell_array =
+		vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT);
 	if (!context->pending_doorbell_array) {
 		error = -ENOMEM;
 		goto err_free_db_array;
@@ -211,7 +217,7 @@ static int ctx_fire_notification(u32 context_id, u32 priv_flags)
 	 * We create an array to hold the subscribers we find when
 	 * scanning through all contexts.
 	 */
-	subscriber_array = vmci_handle_arr_create(0);
+	subscriber_array = vmci_handle_arr_create(0, VMCI_MAX_CONTEXTS);
 	if (subscriber_array == NULL)
 		return VMCI_ERROR_NO_MEM;
 
@@ -630,20 +636,26 @@ int vmci_ctx_add_notification(u32 context_id, u32 remote_cid)
 
 	spin_lock(&context->lock);
 
-	list_for_each_entry(n, &context->notifier_list, node) {
+	if (context->n_notifiers < VMCI_MAX_CONTEXTS) {
-		if (vmci_handle_is_equal(n->handle, notifier->handle)) {
+		list_for_each_entry(n, &context->notifier_list, node) {
-			exists = true;
+			if (vmci_handle_is_equal(n->handle, notifier->handle)) {
-			break;
+				exists = true;
+				break;
+			}
 		}
-	}
 
-	if (exists) {
+		if (exists) {
-		kfree(notifier);
+			kfree(notifier);
-		result = VMCI_ERROR_ALREADY_EXISTS;
+			result = VMCI_ERROR_ALREADY_EXISTS;
+		} else {
+			list_add_tail_rcu(&notifier->node,
+					  &context->notifier_list);
+			context->n_notifiers++;
+			result = VMCI_SUCCESS;
+		}
 	} else {
-		list_add_tail_rcu(&notifier->node, &context->notifier_list);
+		kfree(notifier);
-		context->n_notifiers++;
+		result = VMCI_ERROR_NO_MEM;
-		result = VMCI_SUCCESS;
 	}
 
 	spin_unlock(&context->lock);
@@ -728,8 +740,7 @@ static int vmci_ctx_get_chkpt_doorbells(struct vmci_ctx *context,
 					u32 *buf_size, void **pbuf)
 {
 	struct dbell_cpt_state *dbells;
-	size_t n_doorbells;
+	u32 i, n_doorbells;
-	int i;
 
 	n_doorbells = vmci_handle_arr_get_size(context->doorbell_array);
 	if (n_doorbells > 0) {
@@ -867,7 +878,8 @@ int vmci_ctx_rcv_notifications_get(u32 context_id,
 	spin_lock(&context->lock);
 
 	*db_handle_array = context->pending_doorbell_array;
-	context->pending_doorbell_array = vmci_handle_arr_create(0);
+	context->pending_doorbell_array =
+		vmci_handle_arr_create(0, VMCI_MAX_GUEST_DOORBELL_COUNT);
 	if (!context->pending_doorbell_array) {
 		context->pending_doorbell_array = *db_handle_array;
 		*db_handle_array = NULL;
@@ -949,12 +961,11 @@ int vmci_ctx_dbell_create(u32 context_id, struct vmci_handle handle)
 		return VMCI_ERROR_NOT_FOUND;
 
 	spin_lock(&context->lock);
-	if (!vmci_handle_arr_has_entry(context->doorbell_array, handle)) {
+	if (!vmci_handle_arr_has_entry(context->doorbell_array, handle))
-		vmci_handle_arr_append_entry(&context->doorbell_array, handle);
+		result = vmci_handle_arr_append_entry(&context->doorbell_array,
-		result = VMCI_SUCCESS;
+						      handle);
-	} else {
+	else
 		result = VMCI_ERROR_DUPLICATE_ENTRY;
-	}
 
 	spin_unlock(&context->lock);
 	vmci_ctx_put(context);
@@ -1090,15 +1101,16 @@ int vmci_ctx_notify_dbell(u32 src_cid,
 			if (!vmci_handle_arr_has_entry(
 					dst_context->pending_doorbell_array,
 					handle)) {
-				vmci_handle_arr_append_entry(
+				result = vmci_handle_arr_append_entry(
 					&dst_context->pending_doorbell_array,
 					handle);
-
+				if (result == VMCI_SUCCESS) {
-				ctx_signal_notify(dst_context);
+					ctx_signal_notify(dst_context);
-				wake_up(&dst_context->host_context.wait_queue);
+					wake_up(&dst_context->host_context.wait_queue);
-
+				}
+			} else {
+				result = VMCI_SUCCESS;
 			}
-			result = VMCI_SUCCESS;
 		}
 		spin_unlock(&dst_context->lock);
 	}
@@ -1125,13 +1137,11 @@ int vmci_ctx_qp_create(struct vmci_ctx *context, struct vmci_handle handle)
 	if (context == NULL || vmci_handle_is_invalid(handle))
 		return VMCI_ERROR_INVALID_ARGS;
 
-	if (!vmci_handle_arr_has_entry(context->queue_pair_array, handle)) {
+	if (!vmci_handle_arr_has_entry(context->queue_pair_array, handle))
-		vmci_handle_arr_append_entry(&context->queue_pair_array,
+		result = vmci_handle_arr_append_entry(
-					     handle);
+			&context->queue_pair_array, handle);
-		result = VMCI_SUCCESS;
+	else
-	} else {
 		result = VMCI_ERROR_DUPLICATE_ENTRY;
-	}
 
 	return result;
 }

drivers/misc/vmw_vmci/vmci_handle_array.c

@@ -16,24 +16,29 @@
 #include <linux/slab.h>
 #include "vmci_handle_array.h"
 
-static size_t handle_arr_calc_size(size_t capacity)
+static size_t handle_arr_calc_size(u32 capacity)
 {
-	return sizeof(struct vmci_handle_arr) +
+	return VMCI_HANDLE_ARRAY_HEADER_SIZE +
 	    capacity * sizeof(struct vmci_handle);
 }
 
-struct vmci_handle_arr *vmci_handle_arr_create(size_t capacity)
+struct vmci_handle_arr *vmci_handle_arr_create(u32 capacity, u32 max_capacity)
 {
 	struct vmci_handle_arr *array;
 
+	if (max_capacity == 0 || capacity > max_capacity)
+		return NULL;
+
 	if (capacity == 0)
-		capacity = VMCI_HANDLE_ARRAY_DEFAULT_SIZE;
+		capacity = min((u32)VMCI_HANDLE_ARRAY_DEFAULT_CAPACITY,
+			       max_capacity);
 
 	array = kmalloc(handle_arr_calc_size(capacity), GFP_ATOMIC);
 	if (!array)
 		return NULL;
 
 	array->capacity = capacity;
+	array->max_capacity = max_capacity;
 	array->size = 0;
 
 	return array;
@@ -44,27 +49,34 @@ void vmci_handle_arr_destroy(struct vmci_handle_arr *array)
 	kfree(array);
 }
 
-void vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
+int vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
-				  struct vmci_handle handle)
+				 struct vmci_handle handle)
 {
 	struct vmci_handle_arr *array = *array_ptr;
 
 	if (unlikely(array->size >= array->capacity)) {
 		/* reallocate. */
 		struct vmci_handle_arr *new_array;
-		size_t new_capacity = array->capacity * VMCI_ARR_CAP_MULT;
+		u32 capacity_bump = min(array->max_capacity - array->capacity,
-		size_t new_size = handle_arr_calc_size(new_capacity);
+					array->capacity);
+		size_t new_size = handle_arr_calc_size(array->capacity +
+						       capacity_bump);
+
+		if (array->size >= array->max_capacity)
+			return VMCI_ERROR_NO_MEM;
 
 		new_array = krealloc(array, new_size, GFP_ATOMIC);
 		if (!new_array)
-			return;
+			return VMCI_ERROR_NO_MEM;
 
-		new_array->capacity = new_capacity;
+		new_array->capacity += capacity_bump;
 		*array_ptr = array = new_array;
 	}
 
 	array->entries[array->size] = handle;
 	array->size++;
+
+	return VMCI_SUCCESS;
 }
 
 /*
@@ -74,7 +86,7 @@ struct vmci_handle vmci_handle_arr_remove_entry(struct vmci_handle_arr *array,
 						struct vmci_handle entry_handle)
 {
 	struct vmci_handle handle = VMCI_INVALID_HANDLE;
-	size_t i;
+	u32 i;
 
 	for (i = 0; i < array->size; i++) {
 		if (vmci_handle_is_equal(array->entries[i], entry_handle)) {
@@ -109,7 +121,7 @@ struct vmci_handle vmci_handle_arr_remove_tail(struct vmci_handle_arr *array)
  * Handle at given index, VMCI_INVALID_HANDLE if invalid index.
  */
 struct vmci_handle
-vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index)
+vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, u32 index)
 {
 	if (unlikely(index >= array->size))
 		return VMCI_INVALID_HANDLE;
@@ -120,7 +132,7 @@ vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index)
 bool vmci_handle_arr_has_entry(const struct vmci_handle_arr *array,
 			       struct vmci_handle entry_handle)
 {
-	size_t i;
+	u32 i;
 
 	for (i = 0; i < array->size; i++)
 		if (vmci_handle_is_equal(array->entries[i], entry_handle))

drivers/misc/vmw_vmci/vmci_handle_array.h

@@ -17,32 +17,41 @@
 #define _VMCI_HANDLE_ARRAY_H_
 
 #include <linux/vmw_vmci_defs.h>
+#include <linux/limits.h>
 #include <linux/types.h>
 
-#define VMCI_HANDLE_ARRAY_DEFAULT_SIZE 4
-#define VMCI_ARR_CAP_MULT 2	/* Array capacity multiplier */
-
 struct vmci_handle_arr {
-	size_t capacity;
+	u32 capacity;
-	size_t size;
+	u32 max_capacity;
+	u32 size;
+	u32 pad;
 	struct vmci_handle entries[];
 };
 
-struct vmci_handle_arr *vmci_handle_arr_create(size_t capacity);
+#define VMCI_HANDLE_ARRAY_HEADER_SIZE				\
+	offsetof(struct vmci_handle_arr, entries)
+/* Select a default capacity that results in a 64 byte sized array */
+#define VMCI_HANDLE_ARRAY_DEFAULT_CAPACITY			6
+/* Make sure that the max array size can be expressed by a u32 */
+#define VMCI_HANDLE_ARRAY_MAX_CAPACITY				\
+	((U32_MAX - VMCI_HANDLE_ARRAY_HEADER_SIZE - 1) /	\
+	sizeof(struct vmci_handle))
+
+struct vmci_handle_arr *vmci_handle_arr_create(u32 capacity, u32 max_capacity);
 void vmci_handle_arr_destroy(struct vmci_handle_arr *array);
-void vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
+int vmci_handle_arr_append_entry(struct vmci_handle_arr **array_ptr,
-				  struct vmci_handle handle);
+				 struct vmci_handle handle);
 struct vmci_handle vmci_handle_arr_remove_entry(struct vmci_handle_arr *array,
 						struct vmci_handle
 						entry_handle);
 struct vmci_handle vmci_handle_arr_remove_tail(struct vmci_handle_arr *array);
 struct vmci_handle
-vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, size_t index);
+vmci_handle_arr_get_entry(const struct vmci_handle_arr *array, u32 index);
 bool vmci_handle_arr_has_entry(const struct vmci_handle_arr *array,
 			       struct vmci_handle entry_handle);
 struct vmci_handle *vmci_handle_arr_get_handles(struct vmci_handle_arr *array);
 
-static inline size_t vmci_handle_arr_get_size(
+static inline u32 vmci_handle_arr_get_size(
 	const struct vmci_handle_arr *array)
 {
 	return array->size;

drivers/net/can/spi/Kconfig

@@ -2,10 +2,11 @@ menu "CAN SPI interfaces"
 	depends on SPI
 
 config CAN_MCP251X
-	tristate "Microchip MCP251x SPI CAN controllers"
+	tristate "Microchip MCP251x and MCP25625 SPI CAN controllers"
 	depends on HAS_DMA
 	---help---
-	  Driver for the Microchip MCP251x SPI CAN controllers.
+	  Driver for the Microchip MCP251x and MCP25625 SPI CAN
+	  controllers.
 
 config CAN_RH850
 	tristate "Renesas RH850 SPI CAN controller"

drivers/net/can/spi/mcp251x.c

@@ -1,5 +1,5 @@
 /*
- * CAN bus driver for Microchip 251x CAN Controller with SPI Interface
+ * CAN bus driver for Microchip 251x/25625 CAN Controller with SPI Interface
  *
  * MCP2510 support and bug fixes by Christian Pellegrin
  * <chripell@evolware.org>
@@ -41,7 +41,7 @@
  * static struct spi_board_info spi_board_info[] = {
  *         {
  *                 .modalias = "mcp2510",
- *			// or "mcp2515" depending on your controller
+ *			// "mcp2515" or "mcp25625" depending on your controller
  *                 .platform_data = &mcp251x_info,
  *                 .irq = IRQ_EINT13,
  *                 .max_speed_hz = 2*1000*1000,
@@ -238,6 +238,7 @@ static const struct can_bittiming_const mcp251x_bittiming_const = {
 enum mcp251x_model {
 	CAN_MCP251X_MCP2510	= 0x2510,
 	CAN_MCP251X_MCP2515	= 0x2515,
+	CAN_MCP251X_MCP25625	= 0x25625,
 };
 
 struct mcp251x_priv {
@@ -280,7 +281,6 @@ static inline int mcp251x_is_##_model(struct spi_device *spi) \
 }
 
 MCP251X_IS(2510);
-MCP251X_IS(2515);
 
 static void mcp251x_clean(struct net_device *net)
 {
@@ -640,7 +640,7 @@ static int mcp251x_hw_reset(struct spi_device *spi)
 
 	/* Wait for oscillator startup timer after reset */
 	mdelay(MCP251X_OST_DELAY_MS);
-	
+
 	reg = mcp251x_read_reg(spi, CANSTAT);
 	if ((reg & CANCTRL_REQOP_MASK) != CANCTRL_REQOP_CONF)
 		return -ENODEV;
@@ -821,9 +821,8 @@ static irqreturn_t mcp251x_can_ist(int irq, void *dev_id)
 		/* receive buffer 0 */
 		if (intf & CANINTF_RX0IF) {
 			mcp251x_hw_rx(spi, 0);
-			/*
+			/* Free one buffer ASAP
-			 * Free one buffer ASAP
+			 * (The MCP2515/25625 does this automatically.)
-			 * (The MCP2515 does this automatically.)
 			 */
 			if (mcp251x_is_2510(spi))
 				mcp251x_write_bits(spi, CANINTF, CANINTF_RX0IF, 0x00);
@@ -832,7 +831,7 @@ static irqreturn_t mcp251x_can_ist(int irq, void *dev_id)
 		/* receive buffer 1 */
 		if (intf & CANINTF_RX1IF) {
 			mcp251x_hw_rx(spi, 1);
-			/* the MCP2515 does this automatically */
+			/* The MCP2515/25625 does this automatically. */
 			if (mcp251x_is_2510(spi))
 				clear_intf |= CANINTF_RX1IF;
 		}
@@ -1006,6 +1005,10 @@ static const struct of_device_id mcp251x_of_match[] = {
 		.compatible	= "microchip,mcp2515",
 		.data		= (void *)CAN_MCP251X_MCP2515,
 	},
+	{
+		.compatible	= "microchip,mcp25625",
+		.data		= (void *)CAN_MCP251X_MCP25625,
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mcp251x_of_match);
@@ -1019,6 +1022,10 @@ static const struct spi_device_id mcp251x_id_table[] = {
 		.name		= "mcp2515",
 		.driver_data	= (kernel_ulong_t)CAN_MCP251X_MCP2515,
 	},
+	{
+		.name		= "mcp25625",
+		.driver_data	= (kernel_ulong_t)CAN_MCP251X_MCP25625,
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, mcp251x_id_table);
@@ -1254,5 +1261,5 @@ module_spi_driver(mcp251x_can_driver);
 
 MODULE_AUTHOR("Chris Elston <celston@katalix.com>, "
 	      "Christian Pellegrin <chripell@evolware.org>");
-MODULE_DESCRIPTION("Microchip 251x CAN driver");
+MODULE_DESCRIPTION("Microchip 251x/25625 CAN driver");
 MODULE_LICENSE("GPL v2");

drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c

@@ -1559,7 +1559,8 @@ static int bnx2x_get_module_info(struct net_device *dev,
 	}
 
 	if (!sff8472_comp ||
-	    (diag_type & SFP_EEPROM_DIAG_ADDR_CHANGE_REQ)) {
+	    (diag_type & SFP_EEPROM_DIAG_ADDR_CHANGE_REQ) ||
+	    !(diag_type & SFP_EEPROM_DDM_IMPLEMENTED)) {
 		modinfo->type = ETH_MODULE_SFF_8079;
 		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
 	} else {

drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h

@@ -62,6 +62,7 @@
 #define SFP_EEPROM_DIAG_TYPE_ADDR		0x5c
 #define SFP_EEPROM_DIAG_TYPE_SIZE		1
 #define SFP_EEPROM_DIAG_ADDR_CHANGE_REQ		(1<<2)
+#define SFP_EEPROM_DDM_IMPLEMENTED		(1<<6)
 #define SFP_EEPROM_SFF_8472_COMP_ADDR		0x5e
 #define SFP_EEPROM_SFF_8472_COMP_SIZE		1
 

drivers/net/ethernet/emulex/benet/be_ethtool.c

@@ -868,7 +868,7 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test,
 			 u64 *data)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
-	int status;
+	int status, cnt;
 	u8 link_status = 0;
 
 	if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) {
@@ -879,6 +879,9 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test,
 
 	memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM);
 
+	/* check link status before offline tests */
+	link_status = netif_carrier_ok(netdev);
+
 	if (test->flags & ETH_TEST_FL_OFFLINE) {
 		if (be_loopback_test(adapter, BE_MAC_LOOPBACK, &data[0]) != 0)
 			test->flags |= ETH_TEST_FL_FAILED;
@@ -899,13 +902,26 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test,
 		test->flags |= ETH_TEST_FL_FAILED;
 	}
 
-	status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
+	/* link status was down prior to test */
-	if (status) {
+	if (!link_status) {
-		test->flags |= ETH_TEST_FL_FAILED;
-		data[4] = -1;
-	} else if (!link_status) {
 		test->flags |= ETH_TEST_FL_FAILED;
 		data[4] = 1;
+		return;
+	}
+
+	for (cnt = 10; cnt; cnt--) {
+		status = be_cmd_link_status_query(adapter, NULL, &link_status,
+						  0);
+		if (status) {
+			test->flags |= ETH_TEST_FL_FAILED;
+			data[4] = -1;
+			break;
+		}
+
+		if (link_status)
+			break;
+
+		msleep_interruptible(500);
 	}
 }
 

drivers/net/ethernet/intel/e1000e/netdev.c

@@ -4171,7 +4171,7 @@ int e1000e_up(struct e1000_adapter *adapter)
 		e1000_configure_msix(adapter);
 	e1000_irq_enable(adapter);
 
-	netif_start_queue(adapter->netdev);
+	/* Tx queue started by watchdog timer when link is up */
 
 	/* fire a link change interrupt to start the watchdog */
 	if (adapter->msix_entries)
@@ -4539,6 +4539,7 @@ static int e1000_open(struct net_device *netdev)
 	pm_runtime_get_sync(&pdev->dev);
 
 	netif_carrier_off(netdev);
+	netif_stop_queue(netdev);
 
 	/* allocate transmit descriptors */
 	err = e1000e_setup_tx_resources(adapter->tx_ring);
@@ -4599,7 +4600,6 @@ static int e1000_open(struct net_device *netdev)
 	e1000_irq_enable(adapter);
 
 	adapter->tx_hang_recheck = false;
-	netif_start_queue(netdev);
 
 	hw->mac.get_link_status = true;
 	pm_runtime_put(&pdev->dev);
@@ -5226,6 +5226,7 @@ static void e1000_watchdog_task(struct work_struct *work)
 			if (phy->ops.cfg_on_link_up)
 				phy->ops.cfg_on_link_up(hw);
 
+			netif_wake_queue(netdev);
 			netif_carrier_on(netdev);
 
 			if (!test_bit(__E1000_DOWN, &adapter->state))
@@ -5239,6 +5240,7 @@ static void e1000_watchdog_task(struct work_struct *work)
 			/* Link status message must follow this format */
 			pr_info("%s NIC Link is Down\n", adapter->netdev->name);
 			netif_carrier_off(netdev);
+			netif_stop_queue(netdev);
 			if (!test_bit(__E1000_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
 					  round_jiffies(jiffies + 2 * HZ));

drivers/net/ethernet/sis/sis900.c

@@ -1058,7 +1058,7 @@ sis900_open(struct net_device *net_dev)
 	sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED);
 
 	/* Enable all known interrupts by setting the interrupt mask. */
-	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
 	sw32(cr, RxENA | sr32(cr));
 	sw32(ier, IE);
 
@@ -1581,7 +1581,7 @@ static void sis900_tx_timeout(struct net_device *net_dev)
 	sw32(txdp, sis_priv->tx_ring_dma);
 
 	/* Enable all known interrupts by setting the interrupt mask. */
-	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
 }
 
 /**
@@ -1621,7 +1621,7 @@ sis900_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
 			spin_unlock_irqrestore(&sis_priv->lock, flags);
 			return NETDEV_TX_OK;
 	}
-	sis_priv->tx_ring[entry].cmdsts = (OWN | skb->len);
+	sis_priv->tx_ring[entry].cmdsts = (OWN | INTR | skb->len);
 	sw32(cr, TxENA | sr32(cr));
 
 	sis_priv->cur_tx ++;
@@ -1677,7 +1677,7 @@ static irqreturn_t sis900_interrupt(int irq, void *dev_instance)
 	do {
 		status = sr32(isr);
 
-		if ((status & (HIBERR|TxURN|TxERR|TxIDLE|RxORN|RxERR|RxOK)) == 0)
+		if ((status & (HIBERR|TxURN|TxERR|TxIDLE|TxDESC|RxORN|RxERR|RxOK)) == 0)
 			/* nothing intresting happened */
 			break;
 		handled = 1;
@@ -1687,7 +1687,7 @@ static irqreturn_t sis900_interrupt(int irq, void *dev_instance)
 			/* Rx interrupt */
 			sis900_rx(net_dev);
 
-		if (status & (TxURN | TxERR | TxIDLE))
+		if (status & (TxURN | TxERR | TxIDLE | TxDESC))
 			/* Tx interrupt */
 			sis900_finish_xmit(net_dev);
 
@@ -1899,8 +1899,8 @@ static void sis900_finish_xmit (struct net_device *net_dev)
 
 		if (tx_status & OWN) {
 			/* The packet is not transmitted yet (owned by hardware) !
-			 * Note: the interrupt is generated only when Tx Machine
+			 * Note: this is an almost impossible condition
-			 * is idle, so this is an almost impossible case */
+			 * in case of TxDESC ('descriptor interrupt') */
 			break;
 		}
 
@@ -2476,7 +2476,7 @@ static int sis900_resume(struct pci_dev *pci_dev)
 	sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED);
 
 	/* Enable all known interrupts by setting the interrupt mask. */
-	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
+	sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
 	sw32(cr, RxENA | sr32(cr));
 	sw32(ier, IE);
 

drivers/net/ppp/ppp_mppe.c

@@ -62,6 +62,7 @@ MODULE_AUTHOR("Frank Cusack <fcusack@fcusack.com>");
 MODULE_DESCRIPTION("Point-to-Point Protocol Microsoft Point-to-Point Encryption support");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE));
+MODULE_SOFTDEP("pre: arc4");
 MODULE_VERSION("1.0.2");
 
 static unsigned int

drivers/net/wireless/ath/carl9170/usb.c

@@ -128,6 +128,8 @@ static struct usb_device_id carl9170_usb_ids[] = {
 };
 MODULE_DEVICE_TABLE(usb, carl9170_usb_ids);
 
+static struct usb_driver carl9170_driver;
+
 static void carl9170_usb_submit_data_urb(struct ar9170 *ar)
 {
 	struct urb *urb;
@@ -968,32 +970,28 @@ err_out:
 
 static void carl9170_usb_firmware_failed(struct ar9170 *ar)
 {
-	struct device *parent = ar->udev->dev.parent;
+	/* Store a copies of the usb_interface and usb_device pointer locally.
-	struct usb_device *udev;
+	 * This is because release_driver initiates carl9170_usb_disconnect,
-
+	 * which in turn frees our driver context (ar).
-	/*
-	 * Store a copy of the usb_device pointer locally.
-	 * This is because device_release_driver initiates
-	 * carl9170_usb_disconnect, which in turn frees our
-	 * driver context (ar).
 	 */
-	udev = ar->udev;
+	struct usb_interface *intf = ar->intf;
+	struct usb_device *udev = ar->udev;
 
 	complete(&ar->fw_load_wait);
+	/* at this point 'ar' could be already freed. Don't use it anymore */
+	ar = NULL;
 
 	/* unbind anything failed */
-	if (parent)
+	usb_lock_device(udev);
-		device_lock(parent);
+	usb_driver_release_interface(&carl9170_driver, intf);
+	usb_unlock_device(udev);
 
-	device_release_driver(&udev->dev);
+	usb_put_intf(intf);
-	if (parent)
-		device_unlock(parent);
-
-	usb_put_dev(udev);
 }
 
 static void carl9170_usb_firmware_finish(struct ar9170 *ar)
 {
+	struct usb_interface *intf = ar->intf;
 	int err;
 
 	err = carl9170_parse_firmware(ar);
@@ -1011,7 +1009,7 @@ static void carl9170_usb_firmware_finish(struct ar9170 *ar)
 		goto err_unrx;
 
 	complete(&ar->fw_load_wait);
-	usb_put_dev(ar->udev);
+	usb_put_intf(intf);
 	return;
 
 err_unrx:
@@ -1054,7 +1052,6 @@ static int carl9170_usb_probe(struct usb_interface *intf,
 		return PTR_ERR(ar);
 
 	udev = interface_to_usbdev(intf);
-	usb_get_dev(udev);
 	ar->udev = udev;
 	ar->intf = intf;
 	ar->features = id->driver_info;
@@ -1096,15 +1093,14 @@ static int carl9170_usb_probe(struct usb_interface *intf,
 	atomic_set(&ar->rx_anch_urbs, 0);
 	atomic_set(&ar->rx_pool_urbs, 0);
 
-	usb_get_dev(ar->udev);
+	usb_get_intf(intf);
 
 	carl9170_set_state(ar, CARL9170_STOPPED);
 
 	err = request_firmware_nowait(THIS_MODULE, 1, CARL9170FW_NAME,
 		&ar->udev->dev, GFP_KERNEL, ar, carl9170_usb_firmware_step2);
 	if (err) {
-		usb_put_dev(udev);
+		usb_put_intf(intf);
-		usb_put_dev(udev);
 		carl9170_free(ar);
 	}
 	return err;
@@ -1133,7 +1129,6 @@ static void carl9170_usb_disconnect(struct usb_interface *intf)
 
 	carl9170_release_firmware(ar);
 	carl9170_free(ar);
-	usb_put_dev(udev);
 }
 
 #ifdef CONFIG_PM

drivers/net/wireless/mwifiex/fw.h

@@ -1589,9 +1589,10 @@ struct mwifiex_ie_types_wmm_queue_status {
 struct ieee_types_vendor_header {
 	u8 element_id;
 	u8 len;
-	u8 oui[4];	/* 0~2: oui, 3: oui_type */
+	struct {
-	u8 oui_subtype;
+		u8 oui[3];
-	u8 version;
+		u8 oui_type;
+	} __packed oui;
 } __packed;
 
 struct ieee_types_wmm_parameter {
@@ -1605,6 +1606,9 @@ struct ieee_types_wmm_parameter {
 	 *   Version     [1]
 	 */
 	struct ieee_types_vendor_header vend_hdr;
+	u8 oui_subtype;
+	u8 version;
+
 	u8 qos_info_bitmap;
 	u8 reserved;
 	struct ieee_types_wmm_ac_parameters ac_params[IEEE80211_NUM_ACS];
@@ -1622,6 +1626,8 @@ struct ieee_types_wmm_info {
 	 *   Version     [1]
 	 */
 	struct ieee_types_vendor_header vend_hdr;
+	u8 oui_subtype;
+	u8 version;
 
 	u8 qos_info_bitmap;
 } __packed;

drivers/net/wireless/mwifiex/ie.c

@@ -328,6 +328,8 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv,
 	struct ieee80211_vendor_ie *vendorhdr;
 	u16 gen_idx = MWIFIEX_AUTO_IDX_MASK, ie_len = 0;
 	int left_len, parsed_len = 0;
+	unsigned int token_len;
+	int err = 0;
 
 	if (!info->tail || !info->tail_len)
 		return 0;
@@ -343,6 +345,12 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv,
 	 */
 	while (left_len > sizeof(struct ieee_types_header)) {
 		hdr = (void *)(info->tail + parsed_len);
+		token_len = hdr->len + sizeof(struct ieee_types_header);
+		if (token_len > left_len) {
+			err = -EINVAL;
+			goto out;
+		}
+
 		switch (hdr->element_id) {
 		case WLAN_EID_SSID:
 		case WLAN_EID_SUPP_RATES:
@@ -356,13 +364,16 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv,
 		case WLAN_EID_VENDOR_SPECIFIC:
 			break;
 		default:
-			memcpy(gen_ie->ie_buffer + ie_len, hdr,
+			if (ie_len + token_len > IEEE_MAX_IE_SIZE) {
-			       hdr->len + sizeof(struct ieee_types_header));
+				err = -EINVAL;
-			ie_len += hdr->len + sizeof(struct ieee_types_header);
+				goto out;
+			}
+			memcpy(gen_ie->ie_buffer + ie_len, hdr, token_len);
+			ie_len += token_len;
 			break;
 		}
-		left_len -= hdr->len + sizeof(struct ieee_types_header);
+		left_len -= token_len;
-		parsed_len += hdr->len + sizeof(struct ieee_types_header);
+		parsed_len += token_len;
 	}
 
 	/* parse only WPA vendor IE from tail, WMM IE is configured by
@@ -372,15 +383,17 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv,
 						    WLAN_OUI_TYPE_MICROSOFT_WPA,
 						    info->tail, info->tail_len);
 	if (vendorhdr) {
-		memcpy(gen_ie->ie_buffer + ie_len, vendorhdr,
+		token_len = vendorhdr->len + sizeof(struct ieee_types_header);
-		       vendorhdr->len + sizeof(struct ieee_types_header));
+		if (ie_len + token_len > IEEE_MAX_IE_SIZE) {
-		ie_len += vendorhdr->len + sizeof(struct ieee_types_header);
+			err = -EINVAL;
+			goto out;
+		}
+		memcpy(gen_ie->ie_buffer + ie_len, vendorhdr, token_len);
+		ie_len += token_len;
 	}
 
-	if (!ie_len) {
+	if (!ie_len)
-		kfree(gen_ie);
+		goto out;
-		return 0;
-	}
 
 	gen_ie->ie_index = cpu_to_le16(gen_idx);
 	gen_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_BEACON |
@@ -390,13 +403,15 @@ static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv,
 
 	if (mwifiex_update_uap_custom_ie(priv, gen_ie, &gen_idx, NULL, NULL,
 					 NULL, NULL)) {
-		kfree(gen_ie);
+		err = -EINVAL;
-		return -1;
+		goto out;
 	}
 
 	priv->gen_idx = gen_idx;
+
+ out:
 	kfree(gen_ie);
-	return 0;
+	return err;
 }
 
 /* This function parses different IEs-head & tail IEs, beacon IEs,

drivers/net/wireless/mwifiex/scan.c

@@ -1219,6 +1219,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 		}
 		switch (element_id) {
 		case WLAN_EID_SSID:
+			if (element_len > IEEE80211_MAX_SSID_LEN)
+				return -EINVAL;
 			bss_entry->ssid.ssid_len = element_len;
 			memcpy(bss_entry->ssid.ssid, (current_ptr + 2),
 			       element_len);
@@ -1228,6 +1230,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 			break;
 
 		case WLAN_EID_SUPP_RATES:
+			if (element_len > MWIFIEX_SUPPORTED_RATES)
+				return -EINVAL;
 			memcpy(bss_entry->data_rates, current_ptr + 2,
 			       element_len);
 			memcpy(bss_entry->supported_rates, current_ptr + 2,
@@ -1237,6 +1241,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 			break;
 
 		case WLAN_EID_FH_PARAMS:
+			if (element_len + 2 < sizeof(*fh_param_set))
+				return -EINVAL;
 			fh_param_set =
 				(struct ieee_types_fh_param_set *) current_ptr;
 			memcpy(&bss_entry->phy_param_set.fh_param_set,
@@ -1245,6 +1251,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 			break;
 
 		case WLAN_EID_DS_PARAMS:
+			if (element_len + 2 < sizeof(*ds_param_set))
+				return -EINVAL;
 			ds_param_set =
 				(struct ieee_types_ds_param_set *) current_ptr;
 
@@ -1256,6 +1264,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 			break;
 
 		case WLAN_EID_CF_PARAMS:
+			if (element_len + 2 < sizeof(*cf_param_set))
+				return -EINVAL;
 			cf_param_set =
 				(struct ieee_types_cf_param_set *) current_ptr;
 			memcpy(&bss_entry->ss_param_set.cf_param_set,
@@ -1264,6 +1274,8 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 			break;
 
 		case WLAN_EID_IBSS_PARAMS:
+			if (element_len + 2 < sizeof(*ibss_param_set))
+				return -EINVAL;
 			ibss_param_set =
 				(struct ieee_types_ibss_param_set *)
 				current_ptr;
@@ -1273,10 +1285,14 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 			break;
 
 		case WLAN_EID_ERP_INFO:
+			if (!element_len)
+				return -EINVAL;
 			bss_entry->erp_flags = *(current_ptr + 2);
 			break;
 
 		case WLAN_EID_PWR_CONSTRAINT:
+			if (!element_len)
+				return -EINVAL;
 			bss_entry->local_constraint = *(current_ptr + 2);
 			bss_entry->sensed_11h = true;
 			break;
@@ -1319,15 +1335,22 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 			vendor_ie = (struct ieee_types_vendor_specific *)
 					current_ptr;
 
-			if (!memcmp
+			/* 802.11 requires at least 3-byte OUI. */
-			    (vendor_ie->vend_hdr.oui, wpa_oui,
+			if (element_len < sizeof(vendor_ie->vend_hdr.oui.oui))
-			     sizeof(wpa_oui))) {
+				return -EINVAL;
+
+			/* Not long enough for a match? Skip it. */
+			if (element_len < sizeof(wpa_oui))
+				break;
+
+			if (!memcmp(&vendor_ie->vend_hdr.oui, wpa_oui,
+				    sizeof(wpa_oui))) {
 				bss_entry->bcn_wpa_ie =
 					(struct ieee_types_vendor_specific *)
 					current_ptr;
 				bss_entry->wpa_offset = (u16)
 					(current_ptr - bss_entry->beacon_buf);
-			} else if (!memcmp(vendor_ie->vend_hdr.oui, wmm_oui,
+			} else if (!memcmp(&vendor_ie->vend_hdr.oui, wmm_oui,
 				    sizeof(wmm_oui))) {
 				if (total_ie_len ==
 				    sizeof(struct ieee_types_wmm_parameter) ||

drivers/net/wireless/mwifiex/sta_ioctl.c

@@ -1305,7 +1305,7 @@ mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
 	pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
 	/* Test to see if it is a WPA IE, if not, then it is a gen IE */
 	if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
-	     (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
+	     (!memcmp(&pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
 	    (pvendor_ie->element_id == WLAN_EID_RSN)) {
 
 		/* IE is a WPA/WPA2 IE so call set_wpa function */
@@ -1330,7 +1330,7 @@ mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
 		 */
 		pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
 		if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
-		    (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
+		    (!memcmp(&pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
 			priv->wps.session_enable = true;
 			mwifiex_dbg(priv->adapter, INFO,
 				    "info: WPS Session Enabled.\n");

drivers/net/wireless/mwifiex/wmm.c

@@ -240,7 +240,7 @@ mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv,
 	mwifiex_dbg(priv->adapter, INFO,
 		    "info: WMM Parameter IE: version=%d,\t"
 		    "qos_info Parameter Set Count=%d, Reserved=%#x\n",
-		    wmm_ie->vend_hdr.version, wmm_ie->qos_info_bitmap &
+		    wmm_ie->version, wmm_ie->qos_info_bitmap &
 		    IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK,
 		    wmm_ie->reserved);
 

drivers/s390/cio/qdio_setup.c

@@ -150,6 +150,7 @@ static int __qdio_allocate_qs(struct qdio_q **irq_ptr_qs, int nr_queues)
 			return -ENOMEM;
 		}
 		irq_ptr_qs[i] = q;
+		INIT_LIST_HEAD(&q->entry);
 	}
 	return 0;
 }
@@ -178,6 +179,7 @@ static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr,
 	q->mask = 1 << (31 - i);
 	q->nr = i;
 	q->handler = handler;
+	INIT_LIST_HEAD(&q->entry);
 }
 
 static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,

drivers/s390/cio/qdio_thinint.c

@@ -80,7 +80,6 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
 	mutex_lock(&tiq_list_lock);
 	list_add_rcu(&irq_ptr->input_qs[0]->entry, &tiq_list);
 	mutex_unlock(&tiq_list_lock);
-	xchg(irq_ptr->dsci, 1 << 7);
 }
 
 void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
@@ -88,14 +87,14 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
 	struct qdio_q *q;
 
 	q = irq_ptr->input_qs[0];
-	/* if establish triggered an error */
+	if (!q)
-	if (!q || !q->entry.prev || !q->entry.next)
 		return;
 
 	mutex_lock(&tiq_list_lock);
 	list_del_rcu(&q->entry);
 	mutex_unlock(&tiq_list_lock);
 	synchronize_rcu();
+	INIT_LIST_HEAD(&q->entry);
 }
 
 static inline int has_multiple_inq_on_dsci(struct qdio_irq *irq_ptr)

drivers/staging/comedi/drivers/amplc_pci230.c

@@ -2324,7 +2324,8 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
 	devpriv->intr_running = false;
 	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
-	comedi_handle_events(dev, s_ao);
+	if (s_ao)
+		comedi_handle_events(dev, s_ao);
 	comedi_handle_events(dev, s_ai);
 
 	return IRQ_HANDLED;

drivers/staging/comedi/drivers/dt282x.c

@@ -553,7 +553,8 @@ static irqreturn_t dt282x_interrupt(int irq, void *d)
 	}
 #endif
 	comedi_handle_events(dev, s);
-	comedi_handle_events(dev, s_ao);
+	if (s_ao)
+		comedi_handle_events(dev, s_ao);
 
 	return IRQ_RETVAL(handled);
 }

drivers/usb/gadget/function/u_ether.c

@@ -217,11 +217,12 @@ rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags)
 		out = dev->port_usb->out_ep;
 	else
 		out = NULL;
-	spin_unlock_irqrestore(&dev->lock, flags);
 
 	if (!out)
+	{
+		spin_unlock_irqrestore(&dev->lock, flags);
 		return -ENOTCONN;
-
+	}
 
 	/* Padding up to RX_EXTRA handles minor disagreements with host.
 	 * Normally we use the USB "terminate on short read" convention;
@@ -245,6 +246,7 @@ rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags)
 
 	if (dev->port_usb->is_fixed)
 		size = max_t(size_t, size, dev->port_usb->fixed_out_len);
+	spin_unlock_irqrestore(&dev->lock, flags);
 
 	DBG(dev, "%s: size: %zd\n", __func__, size);
 	skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags);

drivers/usb/renesas_usbhs/fifo.c

@@ -819,9 +819,8 @@ static int __usbhsf_dma_map_ctrl(struct usbhs_pkt *pkt, int map)
 }
 
 static void usbhsf_dma_complete(void *arg);
-static void xfer_work(struct work_struct *work)
+static void usbhsf_dma_xfer_preparing(struct usbhs_pkt *pkt)
 {
-	struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work);
 	struct usbhs_pipe *pipe = pkt->pipe;
 	struct usbhs_fifo *fifo;
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
@@ -829,12 +828,10 @@ static void xfer_work(struct work_struct *work)
 	struct dma_chan *chan;
 	struct device *dev = usbhs_priv_to_dev(priv);
 	enum dma_transfer_direction dir;
-	unsigned long flags;
 
-	usbhs_lock(priv, flags);
 	fifo = usbhs_pipe_to_fifo(pipe);
 	if (!fifo)
-		goto xfer_work_end;
+		return;
 
 	chan = usbhsf_dma_chan_get(fifo, pkt);
 	dir = usbhs_pipe_is_dir_in(pipe) ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV;
@@ -843,7 +840,7 @@ static void xfer_work(struct work_struct *work)
 					pkt->trans, dir,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc)
-		goto xfer_work_end;
+		return;
 
 	desc->callback		= usbhsf_dma_complete;
 	desc->callback_param	= pipe;
@@ -851,7 +848,7 @@ static void xfer_work(struct work_struct *work)
 	pkt->cookie = dmaengine_submit(desc);
 	if (pkt->cookie < 0) {
 		dev_err(dev, "Failed to submit dma descriptor\n");
-		goto xfer_work_end;
+		return;
 	}
 
 	dev_dbg(dev, "  %s %d (%d/ %d)\n",
@@ -862,8 +859,17 @@ static void xfer_work(struct work_struct *work)
 	dma_async_issue_pending(chan);
 	usbhsf_dma_start(pipe, fifo);
 	usbhs_pipe_enable(pipe);
+}
 
-xfer_work_end:
+static void xfer_work(struct work_struct *work)
+{
+	struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work);
+	struct usbhs_pipe *pipe = pkt->pipe;
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
+	usbhsf_dma_xfer_preparing(pkt);
 	usbhs_unlock(priv, flags);
 }
 
@@ -916,8 +922,13 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done)
 	pkt->trans = len;
 
 	usbhsf_tx_irq_ctrl(pipe, 0);
-	INIT_WORK(&pkt->work, xfer_work);
+	/* FIXME: Workaound for usb dmac that driver can be used in atomic */
-	schedule_work(&pkt->work);
+	if (usbhs_get_dparam(priv, has_usb_dmac)) {
+		usbhsf_dma_xfer_preparing(pkt);
+	} else {
+		INIT_WORK(&pkt->work, xfer_work);
+		schedule_work(&pkt->work);
+	}
 
 	return 0;
 
@@ -1023,8 +1034,7 @@ static int usbhsf_dma_prepare_pop_with_usb_dmac(struct usbhs_pkt *pkt,
 
 	pkt->trans = pkt->length;
 
-	INIT_WORK(&pkt->work, xfer_work);
+	usbhsf_dma_xfer_preparing(pkt);
-	schedule_work(&pkt->work);
 
 	return 0;
 

drivers/usb/serial/ftdi_sio.c

@@ -1024,6 +1024,7 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(AIRBUS_DS_VID, AIRBUS_DS_P8GR) },
 	/* EZPrototypes devices */
 	{ USB_DEVICE(EZPROTOTYPES_VID, HJELMSLUND_USB485_ISO_PID) },
+	{ USB_DEVICE_INTERFACE_NUMBER(UNJO_VID, UNJO_ISODEBUG_V1_PID, 1) },
 	{ }					/* Terminating entry */
 };
 

drivers/usb/serial/ftdi_sio_ids.h

@@ -1542,3 +1542,9 @@
 #define CHETCO_SEASMART_DISPLAY_PID	0xA5AD /* SeaSmart NMEA2000 Display */
 #define CHETCO_SEASMART_LITE_PID	0xA5AE /* SeaSmart Lite USB Adapter */
 #define CHETCO_SEASMART_ANALOG_PID	0xA5AF /* SeaSmart Analog Adapter */
+
+/*
+ * Unjo AB
+ */
+#define UNJO_VID			0x22B7
+#define UNJO_ISODEBUG_V1_PID		0x150D

drivers/usb/serial/option.c

@@ -1338,6 +1338,7 @@ 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, 0x0601, 0xff) },	/* GosunCn ZTE WeLink ME3630 (RNDIS mode) */
 	{ 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) },

fs/ext4/crypto_policy.c

@@ -111,6 +111,8 @@ int ext4_process_policy(const struct ext4_encryption_policy *policy,
 	if (!ext4_inode_has_encryption_context(inode)) {
 		if (!S_ISDIR(inode->i_mode))
 			return -EINVAL;
+		if (IS_DEADDIR(inode))
+			return -ENOENT;
 		if (!ext4_empty_dir(inode))
 			return -ENOTEMPTY;
 		return ext4_create_encryption_context_from_policy(inode,

fs/overlayfs/dir.c

@@ -415,8 +415,13 @@ static int ovl_create_or_link(struct dentry *dentry, int mode, dev_t rdev,
 		err = -ENOMEM;
 		override_cred = prepare_creds();
 		if (override_cred) {
-			override_cred->fsuid = old_cred->fsuid;
+			const struct cred *our_cred;
-			override_cred->fsgid = old_cred->fsgid;
+
+			our_cred = old_cred;
+			if (!our_cred)
+				our_cred = current_cred();
+			override_cred->fsuid = our_cred->fsuid;
+			override_cred->fsgid = our_cred->fsgid;
 			put_cred(override_creds(override_cred));
 			put_cred(override_cred);
 

fs/udf/inode.c

@@ -479,13 +479,15 @@ static struct buffer_head *udf_getblk(struct inode *inode, long block,
 	return NULL;
 }
 
-/* Extend the file by 'blocks' blocks, return the number of extents added */
+/* Extend the file with new blocks totaling 'new_block_bytes',
+ * return the number of extents added
+ */
 static int udf_do_extend_file(struct inode *inode,
 			      struct extent_position *last_pos,
 			      struct kernel_long_ad *last_ext,
-			      sector_t blocks)
+			      loff_t new_block_bytes)
 {
-	sector_t add;
+	uint32_t add;
 	int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
 	struct super_block *sb = inode->i_sb;
 	struct kernel_lb_addr prealloc_loc = {};
@@ -495,7 +497,7 @@ static int udf_do_extend_file(struct inode *inode,
 
 	/* The previous extent is fake and we should not extend by anything
 	 * - there's nothing to do... */
-	if (!blocks && fake)
+	if (!new_block_bytes && fake)
 		return 0;
 
 	iinfo = UDF_I(inode);
@@ -526,13 +528,12 @@ static int udf_do_extend_file(struct inode *inode,
 	/* Can we merge with the previous extent? */
 	if ((last_ext->extLength & UDF_EXTENT_FLAG_MASK) ==
 					EXT_NOT_RECORDED_NOT_ALLOCATED) {
-		add = ((1 << 30) - sb->s_blocksize -
+		add = (1 << 30) - sb->s_blocksize -
-			(last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) >>
+			(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
-			sb->s_blocksize_bits;
+		if (add > new_block_bytes)
-		if (add > blocks)
+			add = new_block_bytes;
-			add = blocks;
+		new_block_bytes -= add;
-		blocks -= add;
+		last_ext->extLength += add;
-		last_ext->extLength += add << sb->s_blocksize_bits;
 	}
 
 	if (fake) {
@@ -544,28 +545,27 @@ static int udf_do_extend_file(struct inode *inode,
 				last_ext->extLength, 1);
 
 	/* Managed to do everything necessary? */
-	if (!blocks)
+	if (!new_block_bytes)
 		goto out;
 
 	/* All further extents will be NOT_RECORDED_NOT_ALLOCATED */
 	last_ext->extLocation.logicalBlockNum = 0;
 	last_ext->extLocation.partitionReferenceNum = 0;
-	add = (1 << (30-sb->s_blocksize_bits)) - 1;
+	add = (1 << 30) - sb->s_blocksize;
-	last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
+	last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED | add;
-				(add << sb->s_blocksize_bits);
 
 	/* Create enough extents to cover the whole hole */
-	while (blocks > add) {
+	while (new_block_bytes > add) {
-		blocks -= add;
+		new_block_bytes -= add;
 		err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
 				   last_ext->extLength, 1);
 		if (err)
 			return err;
 		count++;
 	}
-	if (blocks) {
+	if (new_block_bytes) {
 		last_ext->extLength = EXT_NOT_RECORDED_NOT_ALLOCATED |
-			(blocks << sb->s_blocksize_bits);
+			new_block_bytes;
 		err = udf_add_aext(inode, last_pos, &last_ext->extLocation,
 				   last_ext->extLength, 1);
 		if (err)
@@ -596,6 +596,24 @@ out:
 	return count;
 }
 
+/* Extend the final block of the file to final_block_len bytes */
+static void udf_do_extend_final_block(struct inode *inode,
+				      struct extent_position *last_pos,
+				      struct kernel_long_ad *last_ext,
+				      uint32_t final_block_len)
+{
+	struct super_block *sb = inode->i_sb;
+	uint32_t added_bytes;
+
+	added_bytes = final_block_len -
+		      (last_ext->extLength & (sb->s_blocksize - 1));
+	last_ext->extLength += added_bytes;
+	UDF_I(inode)->i_lenExtents += added_bytes;
+
+	udf_write_aext(inode, last_pos, &last_ext->extLocation,
+			last_ext->extLength, 1);
+}
+
 static int udf_extend_file(struct inode *inode, loff_t newsize)
 {
 
@@ -605,10 +623,12 @@ static int udf_extend_file(struct inode *inode, loff_t newsize)
 	int8_t etype;
 	struct super_block *sb = inode->i_sb;
 	sector_t first_block = newsize >> sb->s_blocksize_bits, offset;
+	unsigned long partial_final_block;
 	int adsize;
 	struct udf_inode_info *iinfo = UDF_I(inode);
 	struct kernel_long_ad extent;
-	int err;
+	int err = 0;
+	int within_final_block;
 
 	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
 		adsize = sizeof(struct short_ad);
@@ -618,18 +638,8 @@ static int udf_extend_file(struct inode *inode, loff_t newsize)
 		BUG();
 
 	etype = inode_bmap(inode, first_block, &epos, &eloc, &elen, &offset);
+	within_final_block = (etype != -1);
 
-	/* File has extent covering the new size (could happen when extending
-	 * inside a block)? */
-	if (etype != -1)
-		return 0;
-	if (newsize & (sb->s_blocksize - 1))
-		offset++;
-	/* Extended file just to the boundary of the last file block? */
-	if (offset == 0)
-		return 0;
-
-	/* Truncate is extending the file by 'offset' blocks */
 	if ((!epos.bh && epos.offset == udf_file_entry_alloc_offset(inode)) ||
 	    (epos.bh && epos.offset == sizeof(struct allocExtDesc))) {
 		/* File has no extents at all or has empty last
@@ -643,7 +653,22 @@ static int udf_extend_file(struct inode *inode, loff_t newsize)
 				      &extent.extLength, 0);
 		extent.extLength |= etype << 30;
 	}
-	err = udf_do_extend_file(inode, &epos, &extent, offset);
+
+	partial_final_block = newsize & (sb->s_blocksize - 1);
+
+	/* File has extent covering the new size (could happen when extending
+	 * inside a block)?
+	 */
+	if (within_final_block) {
+		/* Extending file within the last file block */
+		udf_do_extend_final_block(inode, &epos, &extent,
+					  partial_final_block);
+	} else {
+		loff_t add = ((loff_t)offset << sb->s_blocksize_bits) |
+			     partial_final_block;
+		err = udf_do_extend_file(inode, &epos, &extent, add);
+	}
+
 	if (err < 0)
 		goto out;
 	err = 0;
@@ -748,6 +773,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 	/* Are we beyond EOF? */
 	if (etype == -1) {
 		int ret;
+		loff_t hole_len;
 		isBeyondEOF = true;
 		if (count) {
 			if (c)
@@ -763,7 +789,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 			startnum = (offset > 0);
 		}
 		/* Create extents for the hole between EOF and offset */
-		ret = udf_do_extend_file(inode, &prev_epos, laarr, offset);
+		hole_len = (loff_t)offset << inode->i_blkbits;
+		ret = udf_do_extend_file(inode, &prev_epos, laarr, hole_len);
 		if (ret < 0) {
 			brelse(prev_epos.bh);
 			brelse(cur_epos.bh);

include/linux/vmw_vmci_defs.h

@@ -75,9 +75,18 @@ enum {
 
 /*
  * A single VMCI device has an upper limit of 128MB on the amount of
- * memory that can be used for queue pairs.
+ * memory that can be used for queue pairs. Since each queue pair
+ * consists of at least two pages, the memory limit also dictates the
+ * number of queue pairs a guest can create.
  */
 #define VMCI_MAX_GUEST_QP_MEMORY (128 * 1024 * 1024)
+#define VMCI_MAX_GUEST_QP_COUNT  (VMCI_MAX_GUEST_QP_MEMORY / PAGE_SIZE / 2)
+
+/*
+ * There can be at most PAGE_SIZE doorbells since there is one doorbell
+ * per byte in the doorbell bitmap page.
+ */
+#define VMCI_MAX_GUEST_DOORBELL_COUNT PAGE_SIZE
 
 /*
  * Queues with pre-mapped data pages must be small, so that we don't pin

kernel/events/core.c

@@ -5194,7 +5194,7 @@ static void perf_sample_regs_user(struct perf_regs *regs_user,
 	if (user_mode(regs)) {
 		regs_user->abi = perf_reg_abi(current);
 		regs_user->regs = regs;
-	} else if (current->mm) {
+	} else if (!(current->flags & PF_KTHREAD)) {
 		perf_get_regs_user(regs_user, regs, regs_user_copy);
 	} else {
 		regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE;

net/mac80211/mesh.c

@@ -1138,7 +1138,8 @@ int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata)
 	ifmsh->chsw_ttl = 0;
 
 	/* Remove the CSA and MCSP elements from the beacon */
-	tmp_csa_settings = rcu_dereference(ifmsh->csa);
+	tmp_csa_settings = rcu_dereference_protected(ifmsh->csa,
+					    lockdep_is_held(&sdata->wdev.mtx));
 	RCU_INIT_POINTER(ifmsh->csa, NULL);
 	if (tmp_csa_settings)
 		kfree_rcu(tmp_csa_settings, rcu_head);
@@ -1160,6 +1161,8 @@ int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
 	struct mesh_csa_settings *tmp_csa_settings;
 	int ret = 0;
 
+	lockdep_assert_held(&sdata->wdev.mtx);
+
 	tmp_csa_settings = kmalloc(sizeof(*tmp_csa_settings),
 				   GFP_ATOMIC);
 	if (!tmp_csa_settings)

samples/bpf/bpf_load.c

@@ -336,7 +336,7 @@ void read_trace_pipe(void)
 		static char buf[4096];
 		ssize_t sz;
 
-		sz = read(trace_fd, buf, sizeof(buf));
+		sz = read(trace_fd, buf, sizeof(buf) - 1);
 		if (sz > 0) {
 			buf[sz] = 0;
 			puts(buf);