kernel-lts/patches-3.4/0125-3.4.26-all-fixes.patch

diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd
index dbedafb..eb781c6 100644
--- a/Documentation/ABI/testing/sysfs-bus-rbd
+++ b/Documentation/ABI/testing/sysfs-bus-rbd
@@ -51,12 +51,6 @@ current_snap
 
 	The current snapshot for which the device is mapped.
 
-create_snap
-
-	Create a snapshot:
-
-	 $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_create
-
 snap_*
 
 	A directory per each snapshot
diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
index a658672..b4eb3da 100644
--- a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
+++ b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
@@ -462,6 +462,9 @@
 	GPIO76_LCD_PCLK,	\
 	GPIO77_LCD_BIAS
 
+/* these enable a work-around for a hw bug in pxa27x during ac97 warm reset */
+#define GPIO113_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO113, AF0, DEFAULT)
+#define GPIO95_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO95, AF0, DEFAULT)
 
 extern int keypad_set_wake(unsigned int on);
 #endif /* __ASM_ARCH_MFP_PXA27X_H */
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 4726c24..a2fe795 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -47,9 +47,9 @@ void pxa27x_clear_otgph(void)
 EXPORT_SYMBOL(pxa27x_clear_otgph);
 
 static unsigned long ac97_reset_config[] = {
-	GPIO113_GPIO,
+	GPIO113_AC97_nRESET_GPIO_HIGH,
 	GPIO113_AC97_nRESET,
-	GPIO95_GPIO,
+	GPIO95_AC97_nRESET_GPIO_HIGH,
 	GPIO95_AC97_nRESET,
 };
 
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index e9a5fd7..69b17a9 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -72,9 +72,7 @@ void __noreturn cpu_idle(void)
 			}
 		}
 #ifdef CONFIG_HOTPLUG_CPU
-		if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map) &&
-		    (system_state == SYSTEM_RUNNING ||
-		     system_state == SYSTEM_BOOTING))
+		if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map))
 			play_dead();
 #endif
 		rcu_idle_exit();
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 58bddee..9e07bd0 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -422,7 +422,7 @@ _STATIC(__after_prom_start)
 	tovirt(r6,r6)			/* on booke, we already run at PAGE_OFFSET */
 #endif
 
-#ifdef CONFIG_CRASH_DUMP
+#ifdef CONFIG_RELOCATABLE
 /*
  * Check if the kernel has to be running as relocatable kernel based on the
  * variable __run_at_load, if it is set the kernel is treated as relocatable
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 730e69c..e7dba0b 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -749,13 +749,8 @@ void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
 
 void update_vsyscall_tz(void)
 {
-	/* Make userspace gettimeofday spin until we're done. */
-	++vdso_data->tb_update_count;
-	smp_mb();
 	vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
 	vdso_data->tz_dsttime = sys_tz.tz_dsttime;
-	smp_mb();
-	++vdso_data->tb_update_count;
 }
 
 static void __init clocksource_init(void)
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c
index 549bb2c..ded8a1a 100644
--- a/arch/powerpc/kvm/44x_emulate.c
+++ b/arch/powerpc/kvm/44x_emulate.c
@@ -79,6 +79,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
 				run->dcr.dcrn = dcrn;
 				run->dcr.data =  0;
 				run->dcr.is_write = 0;
+				vcpu->arch.dcr_is_write = 0;
 				vcpu->arch.io_gpr = rt;
 				vcpu->arch.dcr_needed = 1;
 				kvmppc_account_exit(vcpu, DCR_EXITS);
@@ -100,6 +101,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
 				run->dcr.dcrn = dcrn;
 				run->dcr.data = kvmppc_get_gpr(vcpu, rs);
 				run->dcr.is_write = 1;
+				vcpu->arch.dcr_is_write = 1;
 				vcpu->arch.dcr_needed = 1;
 				kvmppc_account_exit(vcpu, DCR_EXITS);
 				emulated = EMULATE_DO_DCR;
diff --git a/arch/powerpc/platforms/40x/ppc40x_simple.c b/arch/powerpc/platforms/40x/ppc40x_simple.c
index 9761206..f0eee75 100644
--- a/arch/powerpc/platforms/40x/ppc40x_simple.c
+++ b/arch/powerpc/platforms/40x/ppc40x_simple.c
@@ -57,7 +57,8 @@ static const char *board[] __initdata = {
 	"amcc,makalu",
 	"apm,klondike",
 	"est,hotfoot",
-	"plathome,obs600"
+	"plathome,obs600",
+	NULL
 };
 
 static int __init ppc40x_probe(void)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 6b4976b..a9c8a46 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -612,6 +612,20 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 		}
 	}
 
+	/*
+	 * The way access filter has a performance penalty on some workloads.
+	 * Disable it on the affected CPUs.
+	 */
+	if ((c->x86 == 0x15) &&
+	    (c->x86_model >= 0x02) && (c->x86_model < 0x20)) {
+		u64 val;
+
+		if (!rdmsrl_safe(0xc0011021, &val) && !(val & 0x1E)) {
+			val |= 0x1E;
+			checking_wrmsrl(0xc0011021, val);
+		}
+	}
+
 	cpu_detect_cache_sizes(c);
 
 	/* Multi core CPU? */
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index bd3199c..619a2e4 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -789,8 +789,8 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
 static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
 {
 	struct acpi_device_id button_device_ids[] = {
-		{"PNP0C0D", 0},
 		{"PNP0C0C", 0},
+		{"PNP0C0D", 0},
 		{"PNP0C0E", 0},
 		{"", 0},
 	};
@@ -802,6 +802,11 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
 	/* Power button, Lid switch always enable wakeup */
 	if (!acpi_match_device_ids(device, button_device_ids)) {
 		device->wakeup.flags.run_wake = 1;
+		if (!acpi_match_device_ids(device, &button_device_ids[1])) {
+			/* Do not use Lid/sleep button for S5 wakeup */
+			if (device->wakeup.sleep_state == ACPI_STATE_S5)
+				device->wakeup.sleep_state = ACPI_STATE_S4;
+		}
 		device_set_wakeup_capable(&device->dev, true);
 		return;
 	}
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index cf4837f..4b4caa3 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2536,6 +2536,7 @@ int ata_bus_probe(struct ata_port *ap)
 		 * bus as we may be talking too fast.
 		 */
 		dev->pio_mode = XFER_PIO_0;
+		dev->dma_mode = 0xff;
 
 		/* If the controller has a pio mode setup function
 		 * then use it to set the chipset to rights. Don't
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index d1fbd59..e47c224 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2600,6 +2600,7 @@ int ata_eh_reset(struct ata_link *link, int classify,
 		 * bus as we may be talking too fast.
 		 */
 		dev->pio_mode = XFER_PIO_0;
+		dev->dma_mode = 0xff;
 
 		/* If the controller has a pio mode setup function
 		 * then use it to set the chipset to rights. Don't
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 2222635..15863a4 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -309,7 +309,8 @@ ata_scsi_activity_show(struct device *dev, struct device_attribute *attr,
 	struct ata_port *ap = ata_shost_to_port(sdev->host);
 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);
 
-	if (ap->ops->sw_activity_show && (ap->flags & ATA_FLAG_SW_ACTIVITY))
+	if (atadev && ap->ops->sw_activity_show &&
+	    (ap->flags & ATA_FLAG_SW_ACTIVITY))
 		return ap->ops->sw_activity_show(atadev, buf);
 	return -EINVAL;
 }
@@ -324,7 +325,8 @@ ata_scsi_activity_store(struct device *dev, struct device_attribute *attr,
 	enum sw_activity val;
 	int rc;
 
-	if (ap->ops->sw_activity_store && (ap->flags & ATA_FLAG_SW_ACTIVITY)) {
+	if (atadev && ap->ops->sw_activity_store &&
+	    (ap->flags & ATA_FLAG_SW_ACTIVITY)) {
 		val = simple_strtoul(buf, NULL, 0);
 		switch (val) {
 		case OFF: case BLINK_ON: case BLINK_OFF:
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 000fcc9..ef6e328 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -147,6 +147,10 @@ struct pdc_port_priv {
 	dma_addr_t		pkt_dma;
 };
 
+struct pdc_host_priv {
+	spinlock_t hard_reset_lock;
+};
+
 static int pdc_sata_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
 static int pdc_sata_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
 static int pdc_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
@@ -801,9 +805,10 @@ static void pdc_hard_reset_port(struct ata_port *ap)
 	void __iomem *host_mmio = ap->host->iomap[PDC_MMIO_BAR];
 	void __iomem *pcictl_b1_mmio = host_mmio + PDC_PCI_CTL + 1;
 	unsigned int ata_no = pdc_ata_port_to_ata_no(ap);
+	struct pdc_host_priv *hpriv = ap->host->private_data;
 	u8 tmp;
 
-	spin_lock(&ap->host->lock);
+	spin_lock(&hpriv->hard_reset_lock);
 
 	tmp = readb(pcictl_b1_mmio);
 	tmp &= ~(0x10 << ata_no);
@@ -814,7 +819,7 @@ static void pdc_hard_reset_port(struct ata_port *ap)
 	writeb(tmp, pcictl_b1_mmio);
 	readb(pcictl_b1_mmio); /* flush */
 
-	spin_unlock(&ap->host->lock);
+	spin_unlock(&hpriv->hard_reset_lock);
 }
 
 static int pdc_sata_hardreset(struct ata_link *link, unsigned int *class,
@@ -1182,6 +1187,7 @@ static int pdc_ata_init_one(struct pci_dev *pdev,
 	const struct ata_port_info *pi = &pdc_port_info[ent->driver_data];
 	const struct ata_port_info *ppi[PDC_MAX_PORTS];
 	struct ata_host *host;
+	struct pdc_host_priv *hpriv;
 	void __iomem *host_mmio;
 	int n_ports, i, rc;
 	int is_sataii_tx4;
@@ -1218,6 +1224,11 @@ static int pdc_ata_init_one(struct pci_dev *pdev,
 		dev_err(&pdev->dev, "failed to allocate host\n");
 		return -ENOMEM;
 	}
+	hpriv = devm_kzalloc(&pdev->dev, sizeof *hpriv, GFP_KERNEL);
+	if (!hpriv)
+		return -ENOMEM;
+	spin_lock_init(&hpriv->hard_reset_lock);
+	host->private_data = hpriv;
 	host->iomap = pcim_iomap_table(pdev);
 
 	is_sataii_tx4 = pdc_is_sataii_tx4(pi->flags);
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 251eb70..8ab1eab 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -90,7 +90,7 @@ static ssize_t regmap_map_read_file(struct file *file, char __user *user_buf,
 		/* If we're in the region the user is trying to read */
 		if (p >= *ppos) {
 			/* ...but not beyond it */
-			if (buf_pos >= count - 1 - tot_len)
+			if (buf_pos + 1 + tot_len >= count)
 				break;
 
 			/* Format the register */
diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c
index c3e9dff..041fddf 100644
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -115,7 +115,7 @@ static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq)
 			    bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) &
 			    ~(1 << irqflag));
 	else
-		bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq), 0);
+		bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(oldirq), 0);
 
 	/* assign the new one */
 	if (irq == 0) {
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index db195ab..e49ddd0 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -1,5 +1,5 @@
 /* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
-#define VERSION "47"
+#define VERSION "47q"
 #define AOE_MAJOR 152
 #define DEVICE_NAME "aoe"
 
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 321de7b..7eca463 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -276,8 +276,6 @@ aoeblk_gdalloc(void *vp)
 		goto err_mempool;
 	blk_queue_make_request(d->blkq, aoeblk_make_request);
 	d->blkq->backing_dev_info.name = "aoe";
-	if (bdi_init(&d->blkq->backing_dev_info))
-		goto err_blkq;
 	spin_lock_irqsave(&d->lock, flags);
 	gd->major = AOE_MAJOR;
 	gd->first_minor = d->sysminor * AOE_PARTITIONS;
@@ -298,9 +296,6 @@ aoeblk_gdalloc(void *vp)
 	aoedisk_add_sysfs(d);
 	return;
 
-err_blkq:
-	blk_cleanup_queue(d->blkq);
-	d->blkq = NULL;
 err_mempool:
 	mempool_destroy(d->bufpool);
 err_disk:
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 7b33136..cba3d02 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -71,7 +71,7 @@
 #define DEV_NAME_LEN		32
 #define MAX_INT_FORMAT_WIDTH	((5 * sizeof (int)) / 2 + 1)
 
-#define RBD_NOTIFY_TIMEOUT_DEFAULT 10
+#define RBD_READ_ONLY_DEFAULT		false
 
 /*
  * block device image metadata (in-memory version)
@@ -94,7 +94,7 @@ struct rbd_image_header {
 };
 
 struct rbd_options {
-	int	notify_timeout;
+	bool	read_only;
 };
 
 /*
@@ -174,9 +174,13 @@ struct rbd_device {
 
 	/* protects updating the header */
 	struct rw_semaphore     header_rwsem;
+	/* name of the snapshot this device reads from */
 	char                    snap_name[RBD_MAX_SNAP_NAME_LEN];
+	/* id of the snapshot this device reads from */
 	u64                     snap_id;	/* current snapshot id */
-	int read_only;
+	/* whether the snap_id this device reads from still exists */
+	bool                    snap_exists;
+	bool			read_only;
 
 	struct list_head	node;
 
@@ -185,6 +189,7 @@ struct rbd_device {
 
 	/* sysfs related */
 	struct device		dev;
+	unsigned long		open_count;
 };
 
 static DEFINE_MUTEX(ctl_mutex);	  /* Serialize open/close/setup/teardown */
@@ -197,10 +202,6 @@ static DEFINE_SPINLOCK(rbd_client_list_lock);
 
 static int __rbd_init_snaps_header(struct rbd_device *rbd_dev);
 static void rbd_dev_release(struct device *dev);
-static ssize_t rbd_snap_add(struct device *dev,
-			    struct device_attribute *attr,
-			    const char *buf,
-			    size_t count);
 static void __rbd_remove_snap_dev(struct rbd_device *rbd_dev,
 				  struct rbd_snap *snap);
 
@@ -246,13 +247,15 @@ static int rbd_open(struct block_device *bdev, fmode_t mode)
 {
 	struct rbd_device *rbd_dev = bdev->bd_disk->private_data;
 
-	rbd_get_dev(rbd_dev);
-
-	set_device_ro(bdev, rbd_dev->read_only);
-
 	if ((mode & FMODE_WRITE) && rbd_dev->read_only)
 		return -EROFS;
 
+	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+	rbd_get_dev(rbd_dev);
+	set_device_ro(bdev, rbd_dev->read_only);
+	rbd_dev->open_count++;
+	mutex_unlock(&ctl_mutex);
+
 	return 0;
 }
 
@@ -260,7 +263,11 @@ static int rbd_release(struct gendisk *disk, fmode_t mode)
 {
 	struct rbd_device *rbd_dev = disk->private_data;
 
+	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+	BUG_ON(!rbd_dev->open_count);
+	rbd_dev->open_count--;
 	rbd_put_dev(rbd_dev);
+	mutex_unlock(&ctl_mutex);
 
 	return 0;
 }
@@ -342,17 +349,24 @@ static struct rbd_client *__rbd_client_find(struct ceph_options *opt)
  * mount options
  */
 enum {
-	Opt_notify_timeout,
 	Opt_last_int,
 	/* int args above */
 	Opt_last_string,
 	/* string args above */
+	Opt_read_only,
+	Opt_read_write,
+	/* Boolean args above */
+	Opt_last_bool,
 };
 
 static match_table_t rbdopt_tokens = {
-	{Opt_notify_timeout, "notify_timeout=%d"},
 	/* int args above */
 	/* string args above */
+	{Opt_read_only, "read_only"},
+	{Opt_read_only, "ro"},		/* Alternate spelling */
+	{Opt_read_write, "read_write"},
+	{Opt_read_write, "rw"},		/* Alternate spelling */
+	/* Boolean args above */
 	{-1, NULL}
 };
 
@@ -377,13 +391,18 @@ static int parse_rbd_opts_token(char *c, void *private)
 	} else if (token > Opt_last_int && token < Opt_last_string) {
 		dout("got string token %d val %s\n", token,
 		     argstr[0].from);
+	} else if (token > Opt_last_string && token < Opt_last_bool) {
+		dout("got Boolean token %d\n", token);
 	} else {
 		dout("got token %d\n", token);
 	}
 
 	switch (token) {
-	case Opt_notify_timeout:
-		rbdopt->notify_timeout = intval;
+	case Opt_read_only:
+		rbdopt->read_only = true;
+		break;
+	case Opt_read_write:
+		rbdopt->read_only = false;
 		break;
 	default:
 		BUG_ON(token);
@@ -407,7 +426,7 @@ static struct rbd_client *rbd_get_client(const char *mon_addr,
 	if (!rbd_opts)
 		return ERR_PTR(-ENOMEM);
 
-	rbd_opts->notify_timeout = RBD_NOTIFY_TIMEOUT_DEFAULT;
+	rbd_opts->read_only = RBD_READ_ONLY_DEFAULT;
 
 	opt = ceph_parse_options(options, mon_addr,
 				mon_addr + mon_addr_len,
@@ -590,7 +609,8 @@ static int rbd_header_set_snap(struct rbd_device *dev, u64 *size)
 		else
 			snapc->seq = 0;
 		dev->snap_id = CEPH_NOSNAP;
-		dev->read_only = 0;
+		dev->snap_exists = false;
+		dev->read_only = dev->rbd_client->rbd_opts->read_only;
 		if (size)
 			*size = header->image_size;
 	} else {
@@ -598,7 +618,8 @@ static int rbd_header_set_snap(struct rbd_device *dev, u64 *size)
 		if (ret < 0)
 			goto done;
 		dev->snap_id = snapc->seq;
-		dev->read_only = 1;
+		dev->snap_exists = true;
+		dev->read_only = true;	/* No choice for snapshots */
 	}
 
 	ret = 0;
@@ -609,7 +630,7 @@ done:
 
 static void rbd_header_free(struct rbd_image_header *header)
 {
-	kfree(header->snapc);
+	ceph_put_snap_context(header->snapc);
 	kfree(header->snap_names);
 	kfree(header->snap_sizes);
 }
@@ -887,13 +908,10 @@ static int rbd_do_request(struct request *rq,
 
 	dout("rbd_do_request obj=%s ofs=%lld len=%lld\n", obj, len, ofs);
 
-	down_read(&dev->header_rwsem);
-
 	osdc = &dev->rbd_client->client->osdc;
 	req = ceph_osdc_alloc_request(osdc, flags, snapc, ops,
 					false, GFP_NOIO, pages, bio);
 	if (!req) {
-		up_read(&dev->header_rwsem);
 		ret = -ENOMEM;
 		goto done_pages;
 	}
@@ -920,15 +938,15 @@ static int rbd_do_request(struct request *rq,
 	layout->fl_object_size = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER);
 	layout->fl_pg_preferred = cpu_to_le32(-1);
 	layout->fl_pg_pool = cpu_to_le32(dev->poolid);
-	ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno,
-				req, ops);
+	ret = ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno,
+				   req, ops);
+	BUG_ON(ret != 0);
 
 	ceph_osdc_build_request(req, ofs, &len,
 				ops,
 				snapc,
 				&mtime,
 				req->r_oid, req->r_oid_len);
-	up_read(&dev->header_rwsem);
 
 	if (linger_req) {
 		ceph_osdc_set_request_linger(osdc, req);
@@ -1193,7 +1211,7 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev,
 	if (ret < 0)
 		return ret;
 
-	ops[0].watch.ver = cpu_to_le64(dev->header.obj_version);
+	ops[0].watch.ver = cpu_to_le64(ver);
 	ops[0].watch.cookie = notify_id;
 	ops[0].watch.flag = 0;
 
@@ -1213,6 +1231,7 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev,
 static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
 {
 	struct rbd_device *dev = (struct rbd_device *)data;
+	u64 hver;
 	int rc;
 
 	if (!dev)
@@ -1222,12 +1241,13 @@ static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
 		notify_id, (int)opcode);
 	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
 	rc = __rbd_update_snaps(dev);
+	hver = dev->header.obj_version;
 	mutex_unlock(&ctl_mutex);
 	if (rc)
 		pr_warning(RBD_DRV_NAME "%d got notification but failed to "
 			   " update snaps: %d\n", dev->major, rc);
 
-	rbd_req_sync_notify_ack(dev, ver, notify_id, dev->obj_md_name);
+	rbd_req_sync_notify_ack(dev, hver, notify_id, dev->obj_md_name);
 }
 
 /*
@@ -1304,71 +1324,7 @@ static int rbd_req_sync_unwatch(struct rbd_device *dev,
 	return ret;
 }
 
-struct rbd_notify_info {
-	struct rbd_device *dev;
-};
-
-static void rbd_notify_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
-{
-	struct rbd_device *dev = (struct rbd_device *)data;
-	if (!dev)
-		return;
-
-	dout("rbd_notify_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name,
-		notify_id, (int)opcode);
-}
-
-/*
- * Request sync osd notify
- */
-static int rbd_req_sync_notify(struct rbd_device *dev,
-		          const char *obj)
-{
-	struct ceph_osd_req_op *ops;
-	struct ceph_osd_client *osdc = &dev->rbd_client->client->osdc;
-	struct ceph_osd_event *event;
-	struct rbd_notify_info info;
-	int payload_len = sizeof(u32) + sizeof(u32);
-	int ret;
-
-	ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY, payload_len);
-	if (ret < 0)
-		return ret;
-
-	info.dev = dev;
-
-	ret = ceph_osdc_create_event(osdc, rbd_notify_cb, 1,
-				     (void *)&info, &event);
-	if (ret < 0)
-		goto fail;
-
-	ops[0].watch.ver = 1;
-	ops[0].watch.flag = 1;
-	ops[0].watch.cookie = event->cookie;
-	ops[0].watch.prot_ver = RADOS_NOTIFY_VER;
-	ops[0].watch.timeout = 12;
-
-	ret = rbd_req_sync_op(dev, NULL,
-			       CEPH_NOSNAP,
-			       0,
-			       CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK,
-			       ops,
-			       1, obj, 0, 0, NULL, NULL, NULL);
-	if (ret < 0)
-		goto fail_event;
-
-	ret = ceph_osdc_wait_event(event, CEPH_OSD_TIMEOUT_DEFAULT);
-	dout("ceph_osdc_wait_event returned %d\n", ret);
-	rbd_destroy_ops(ops);
-	return 0;
-
-fail_event:
-	ceph_osdc_cancel_event(event);
-fail:
-	rbd_destroy_ops(ops);
-	return ret;
-}
-
+#if 0
 /*
  * Request sync osd read
  */
@@ -1408,6 +1364,7 @@ static int rbd_req_sync_exec(struct rbd_device *dev,
 	dout("cls_exec returned %d\n", ret);
 	return ret;
 }
+#endif
 
 static struct rbd_req_coll *rbd_alloc_coll(int num_reqs)
 {
@@ -1440,6 +1397,7 @@ static void rbd_rq_fn(struct request_queue *q)
 		u64 ofs;
 		int num_segs, cur_seg = 0;
 		struct rbd_req_coll *coll;
+		struct ceph_snap_context *snapc;
 
 		/* peek at request from block layer */
 		if (!rq)
@@ -1466,6 +1424,20 @@ static void rbd_rq_fn(struct request_queue *q)
 
 		spin_unlock_irq(q->queue_lock);
 
+		down_read(&rbd_dev->header_rwsem);
+
+		if (rbd_dev->snap_id != CEPH_NOSNAP && !rbd_dev->snap_exists) {
+			up_read(&rbd_dev->header_rwsem);
+			dout("request for non-existent snapshot");
+			spin_lock_irq(q->queue_lock);
+			__blk_end_request_all(rq, -ENXIO);
+			continue;
+		}
+
+		snapc = ceph_get_snap_context(rbd_dev->header.snapc);
+
+		up_read(&rbd_dev->header_rwsem);
+
 		dout("%s 0x%x bytes at 0x%llx\n",
 		     do_write ? "write" : "read",
 		     size, blk_rq_pos(rq) * SECTOR_SIZE);
@@ -1475,6 +1447,7 @@ static void rbd_rq_fn(struct request_queue *q)
 		if (!coll) {
 			spin_lock_irq(q->queue_lock);
 			__blk_end_request_all(rq, -ENOMEM);
+			ceph_put_snap_context(snapc);
 			continue;
 		}
 
@@ -1498,7 +1471,7 @@ static void rbd_rq_fn(struct request_queue *q)
 			/* init OSD command: write or read */
 			if (do_write)
 				rbd_req_write(rq, rbd_dev,
-					      rbd_dev->header.snapc,
+					      snapc,
 					      ofs,
 					      op_size, bio,
 					      coll, cur_seg);
@@ -1521,6 +1494,8 @@ next_seg:
 		if (bp)
 			bio_pair_release(bp);
 		spin_lock_irq(q->queue_lock);
+
+		ceph_put_snap_context(snapc);
 	}
 }
 
@@ -1624,57 +1599,6 @@ out_dh:
 	return rc;
 }
 
-/*
- * create a snapshot
- */
-static int rbd_header_add_snap(struct rbd_device *dev,
-			       const char *snap_name,
-			       gfp_t gfp_flags)
-{
-	int name_len = strlen(snap_name);
-	u64 new_snapid;
-	int ret;
-	void *data, *p, *e;
-	u64 ver;
-	struct ceph_mon_client *monc;
-
-	/* we should create a snapshot only if we're pointing at the head */
-	if (dev->snap_id != CEPH_NOSNAP)
-		return -EINVAL;
-
-	monc = &dev->rbd_client->client->monc;
-	ret = ceph_monc_create_snapid(monc, dev->poolid, &new_snapid);
-	dout("created snapid=%lld\n", new_snapid);
-	if (ret < 0)
-		return ret;
-
-	data = kmalloc(name_len + 16, gfp_flags);
-	if (!data)
-		return -ENOMEM;
-
-	p = data;
-	e = data + name_len + 16;
-
-	ceph_encode_string_safe(&p, e, snap_name, name_len, bad);
-	ceph_encode_64_safe(&p, e, new_snapid, bad);
-
-	ret = rbd_req_sync_exec(dev, dev->obj_md_name, "rbd", "snap_add",
-				data, p - data, &ver);
-
-	kfree(data);
-
-	if (ret < 0)
-		return ret;
-
-	down_write(&dev->header_rwsem);
-	dev->header.snapc->seq = new_snapid;
-	up_write(&dev->header_rwsem);
-
-	return 0;
-bad:
-	return -ERANGE;
-}
-
 static void __rbd_remove_all_snaps(struct rbd_device *rbd_dev)
 {
 	struct rbd_snap *snap;
@@ -1699,10 +1623,15 @@ static int __rbd_update_snaps(struct rbd_device *rbd_dev)
 	if (ret < 0)
 		return ret;
 
+	down_write(&rbd_dev->header_rwsem);
+
 	/* resized? */
-	set_capacity(rbd_dev->disk, h.image_size / SECTOR_SIZE);
+	if (rbd_dev->snap_id == CEPH_NOSNAP) {
+		sector_t size = (sector_t) h.image_size / SECTOR_SIZE;
 
-	down_write(&rbd_dev->header_rwsem);
+		dout("setting size to %llu sectors", (unsigned long long) size);
+		set_capacity(rbd_dev->disk, size);
+	}
 
 	snap_seq = rbd_dev->header.snapc->seq;
 	if (rbd_dev->header.total_snaps &&
@@ -1711,10 +1640,12 @@ static int __rbd_update_snaps(struct rbd_device *rbd_dev)
 		   if head moves */
 		follow_seq = 1;
 
-	kfree(rbd_dev->header.snapc);
+	ceph_put_snap_context(rbd_dev->header.snapc);
 	kfree(rbd_dev->header.snap_names);
 	kfree(rbd_dev->header.snap_sizes);
 
+	rbd_dev->header.obj_version = h.obj_version;
+	rbd_dev->header.image_size = h.image_size;
 	rbd_dev->header.total_snaps = h.total_snaps;
 	rbd_dev->header.snapc = h.snapc;
 	rbd_dev->header.snap_names = h.snap_names;
@@ -1818,8 +1749,13 @@ static ssize_t rbd_size_show(struct device *dev,
 			     struct device_attribute *attr, char *buf)
 {
 	struct rbd_device *rbd_dev = dev_to_rbd_dev(dev);
+	sector_t size;
+
+	down_read(&rbd_dev->header_rwsem);
+	size = get_capacity(rbd_dev->disk);
+	up_read(&rbd_dev->header_rwsem);
 
-	return sprintf(buf, "%llu\n", (unsigned long long)rbd_dev->header.image_size);
+	return sprintf(buf, "%llu\n", (unsigned long long) size * SECTOR_SIZE);
 }
 
 static ssize_t rbd_major_show(struct device *dev,
@@ -1890,7 +1826,6 @@ static DEVICE_ATTR(pool, S_IRUGO, rbd_pool_show, NULL);
 static DEVICE_ATTR(name, S_IRUGO, rbd_name_show, NULL);
 static DEVICE_ATTR(refresh, S_IWUSR, NULL, rbd_image_refresh);
 static DEVICE_ATTR(current_snap, S_IRUGO, rbd_snap_show, NULL);
-static DEVICE_ATTR(create_snap, S_IWUSR, NULL, rbd_snap_add);
 
 static struct attribute *rbd_attrs[] = {
 	&dev_attr_size.attr,
@@ -1900,7 +1835,6 @@ static struct attribute *rbd_attrs[] = {
 	&dev_attr_name.attr,
 	&dev_attr_current_snap.attr,
 	&dev_attr_refresh.attr,
-	&dev_attr_create_snap.attr,
 	NULL
 };
 
@@ -2069,7 +2003,14 @@ static int __rbd_init_snaps_header(struct rbd_device *rbd_dev)
 			cur_id = rbd_dev->header.snapc->snaps[i - 1];
 
 		if (!i || old_snap->id < cur_id) {
-			/* old_snap->id was skipped, thus was removed */
+			/*
+			 * old_snap->id was skipped, thus was
+			 * removed.  If this rbd_dev is mapped to
+			 * the removed snapshot, record that it no
+			 * longer exists, to prevent further I/O.
+			 */
+			if (rbd_dev->snap_id == old_snap->id)
+				rbd_dev->snap_exists = false;
 			__rbd_remove_snap_dev(rbd_dev, old_snap);
 			continue;
 		}
@@ -2217,8 +2158,8 @@ static void rbd_id_put(struct rbd_device *rbd_dev)
 		struct rbd_device *rbd_dev;
 
 		rbd_dev = list_entry(tmp, struct rbd_device, node);
-		if (rbd_id > max_id)
-			max_id = rbd_id;
+		if (rbd_dev->id > max_id)
+			max_id = rbd_dev->id;
 	}
 	spin_unlock(&rbd_dev_list_lock);
 
@@ -2515,6 +2456,11 @@ static ssize_t rbd_remove(struct bus_type *bus,
 		goto done;
 	}
 
+	if (rbd_dev->open_count) {
+		ret = -EBUSY;
+		goto done;
+	}
+
 	__rbd_remove_all_snaps(rbd_dev);
 	rbd_bus_del_dev(rbd_dev);
 
@@ -2523,47 +2469,6 @@ done:
 	return ret;
 }
 
-static ssize_t rbd_snap_add(struct device *dev,
-			    struct device_attribute *attr,
-			    const char *buf,
-			    size_t count)
-{
-	struct rbd_device *rbd_dev = dev_to_rbd_dev(dev);
-	int ret;
-	char *name = kmalloc(count + 1, GFP_KERNEL);
-	if (!name)
-		return -ENOMEM;
-
-	snprintf(name, count, "%s", buf);
-
-	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
-
-	ret = rbd_header_add_snap(rbd_dev,
-				  name, GFP_KERNEL);
-	if (ret < 0)
-		goto err_unlock;
-
-	ret = __rbd_update_snaps(rbd_dev);
-	if (ret < 0)
-		goto err_unlock;
-
-	/* shouldn't hold ctl_mutex when notifying.. notify might
-	   trigger a watch callback that would need to get that mutex */
-	mutex_unlock(&ctl_mutex);
-
-	/* make a best effort, don't error if failed */
-	rbd_req_sync_notify(rbd_dev, rbd_dev->obj_md_name);
-
-	ret = count;
-	kfree(name);
-	return ret;
-
-err_unlock:
-	mutex_unlock(&ctl_mutex);
-	kfree(name);
-	return ret;
-}
-
 /*
  * create control files in sysfs
  * /sys/bus/rbd/...
diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c
index 08c6749..638e1f7 100644
--- a/drivers/firewire/net.c
+++ b/drivers/firewire/net.c
@@ -861,8 +861,8 @@ static void fwnet_receive_broadcast(struct fw_iso_context *context,
 	if (specifier_id == IANA_SPECIFIER_ID && ver == RFC2734_SW_VERSION) {
 		buf_ptr += 2;
 		length -= IEEE1394_GASP_HDR_SIZE;
-		fwnet_incoming_packet(dev, buf_ptr, length,
-				      source_node_id, -1, true);
+		fwnet_incoming_packet(dev, buf_ptr, length, source_node_id,
+				      context->card->generation, true);
 	}
 
 	packet.payload_length = dev->rcv_buffer_size;
@@ -958,7 +958,12 @@ static void fwnet_transmit_packet_done(struct fwnet_packet_task *ptask)
 			break;
 		}
 
-		skb_pull(skb, ptask->max_payload);
+		if (ptask->dest_node == IEEE1394_ALL_NODES) {
+			skb_pull(skb,
+				 ptask->max_payload + IEEE1394_GASP_HDR_SIZE);
+		} else {
+			skb_pull(skb, ptask->max_payload);
+		}
 		if (ptask->outstanding_pkts > 1) {
 			fwnet_make_sf_hdr(&ptask->hdr, RFC2374_HDR_INTFRAG,
 					  dg_size, fg_off, datagram_label);
@@ -1062,7 +1067,7 @@ static int fwnet_send_packet(struct fwnet_packet_task *ptask)
 		smp_rmb();
 		node_id = dev->card->node_id;
 
-		p = skb_push(ptask->skb, 8);
+		p = skb_push(ptask->skb, IEEE1394_GASP_HDR_SIZE);
 		put_unaligned_be32(node_id << 16 | IANA_SPECIFIER_ID >> 8, p);
 		put_unaligned_be32((IANA_SPECIFIER_ID & 0xff) << 24
 						| RFC2734_SW_VERSION, &p[4]);
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 6e38325..9d9835a 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -66,6 +66,8 @@
 #define EDID_QUIRK_FIRST_DETAILED_PREFERRED	(1 << 5)
 /* use +hsync +vsync for detailed mode */
 #define EDID_QUIRK_DETAILED_SYNC_PP		(1 << 6)
+/* Force reduced-blanking timings for detailed modes */
+#define EDID_QUIRK_FORCE_REDUCED_BLANKING	(1 << 7)
 
 struct detailed_mode_closure {
 	struct drm_connector *connector;
@@ -120,6 +122,9 @@ static struct edid_quirk {
 	/* Samsung SyncMaster 22[5-6]BW */
 	{ "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
 	{ "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
+
+	/* ViewSonic VA2026w */
+	{ "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
 };
 
 /*** DDC fetch and block validation ***/
@@ -852,12 +857,19 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
 				"Wrong Hsync/Vsync pulse width\n");
 		return NULL;
 	}
+
+	if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
+		mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
+		if (!mode)
+			return NULL;
+
+		goto set_size;
+	}
+
 	mode = drm_mode_create(dev);
 	if (!mode)
 		return NULL;
 
-	mode->type = DRM_MODE_TYPE_DRIVER;
-
 	if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
 		timing->pixel_clock = cpu_to_le16(1088);
 
@@ -881,8 +893,6 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
 
 	drm_mode_do_interlace_quirk(mode, pt);
 
-	drm_mode_set_name(mode);
-
 	if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
 		pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
 	}
@@ -892,6 +902,7 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
 	mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
 		DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
 
+set_size:
 	mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
 	mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
 
@@ -905,6 +916,9 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
 		mode->height_mm = edid->height_cm * 10;
 	}
 
+	mode->type = DRM_MODE_TYPE_DRIVER;
+	drm_mode_set_name(mode);
+
 	return mode;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ae8a64f..89f3d4a 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -224,6 +224,7 @@ static const struct intel_device_info intel_sandybridge_d_info = {
 	.has_bsd_ring = 1,
 	.has_blt_ring = 1,
 	.has_llc = 1,
+	.has_force_wake = 1,
 };
 
 static const struct intel_device_info intel_sandybridge_m_info = {
@@ -233,6 +234,7 @@ static const struct intel_device_info intel_sandybridge_m_info = {
 	.has_bsd_ring = 1,
 	.has_blt_ring = 1,
 	.has_llc = 1,
+	.has_force_wake = 1,
 };
 
 static const struct intel_device_info intel_ivybridge_d_info = {
@@ -241,6 +243,7 @@ static const struct intel_device_info intel_ivybridge_d_info = {
 	.has_bsd_ring = 1,
 	.has_blt_ring = 1,
 	.has_llc = 1,
+	.has_force_wake = 1,
 };
 
 static const struct intel_device_info intel_ivybridge_m_info = {
@@ -250,6 +253,7 @@ static const struct intel_device_info intel_ivybridge_m_info = {
 	.has_bsd_ring = 1,
 	.has_blt_ring = 1,
 	.has_llc = 1,
+	.has_force_wake = 1,
 };
 
 static const struct pci_device_id pciidlist[] = {		/* aka */
@@ -993,6 +997,12 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
 
+/* We give fast paths for the really cool registers */
+#define NEEDS_FORCE_WAKE(dev_priv, reg) \
+	((HAS_FORCE_WAKE((dev_priv)->dev)) && \
+        ((reg) < 0x40000) &&            \
+        ((reg) != FORCEWAKE))
+
 #define __i915_read(x, y) \
 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
 	u##x val = 0; \
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 5fabc6c..45c5cf8 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -255,6 +255,7 @@ struct intel_device_info {
 	u8 is_broadwater:1;
 	u8 is_crestline:1;
 	u8 is_ivybridge:1;
+	u8 has_force_wake:1;
 	u8 has_fbc:1;
 	u8 has_pipe_cxsr:1;
 	u8 has_hotplug:1;
@@ -405,6 +406,8 @@ typedef struct drm_i915_private {
 	unsigned int lvds_use_ssc:1;
 	unsigned int display_clock_mode:1;
 	int lvds_ssc_freq;
+	unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
+	unsigned int lvds_val; /* used for checking LVDS channel mode */
 	struct {
 		int rate;
 		int lanes;
@@ -1051,6 +1054,8 @@ struct drm_i915_file_private {
 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
 
+#define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
+
 #include "i915_trace.h"
 
 /**
@@ -1450,12 +1455,6 @@ void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv);
 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
 int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
 
-/* We give fast paths for the really cool registers */
-#define NEEDS_FORCE_WAKE(dev_priv, reg) \
-	(((dev_priv)->info->gen >= 6) && \
-	 ((reg) < 0x40000) &&		 \
-	 ((reg) != FORCEWAKE))
-
 #define __i915_read(x, y) \
 	u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
 
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0d1e4b7..a230a93 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -928,6 +928,7 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 	}
 
 	if (obj->gtt_space &&
+	    obj->tiling_mode == I915_TILING_NONE &&
 	    obj->base.write_domain != I915_GEM_DOMAIN_CPU) {
 		ret = i915_gem_object_pin(obj, 0, true);
 		if (ret)
@@ -3317,7 +3318,8 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret;
 
-	BUG_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT);
+	if (WARN_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT))
+		return -EBUSY;
 	WARN_ON(i915_verify_lists(dev));
 
 	if (obj->gtt_space != NULL) {
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 26c67a7..8bca2d2 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -530,6 +530,12 @@ static irqreturn_t ivybridge_irq_handler(DRM_IRQ_ARGS)
 	if (de_iir & DE_GSE_IVB)
 		intel_opregion_gse_intr(dev);
 
+	if (de_iir & DE_PIPEA_VBLANK_IVB)
+		drm_handle_vblank(dev, 0);
+
+	if (de_iir & DE_PIPEB_VBLANK_IVB)
+		drm_handle_vblank(dev, 1);
+
 	if (de_iir & DE_PLANEA_FLIP_DONE_IVB) {
 		intel_prepare_page_flip(dev, 0);
 		intel_finish_page_flip_plane(dev, 0);
@@ -540,12 +546,6 @@ static irqreturn_t ivybridge_irq_handler(DRM_IRQ_ARGS)
 		intel_finish_page_flip_plane(dev, 1);
 	}
 
-	if (de_iir & DE_PIPEA_VBLANK_IVB)
-		drm_handle_vblank(dev, 0);
-
-	if (de_iir & DE_PIPEB_VBLANK_IVB)
-		drm_handle_vblank(dev, 1);
-
 	/* check event from PCH */
 	if (de_iir & DE_PCH_EVENT_IVB) {
 		if (pch_iir & SDE_HOTPLUG_MASK_CPT)
@@ -622,6 +622,12 @@ static irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS)
 	if (de_iir & DE_GSE)
 		intel_opregion_gse_intr(dev);
 
+	if (de_iir & DE_PIPEA_VBLANK)
+		drm_handle_vblank(dev, 0);
+
+	if (de_iir & DE_PIPEB_VBLANK)
+		drm_handle_vblank(dev, 1);
+
 	if (de_iir & DE_PLANEA_FLIP_DONE) {
 		intel_prepare_page_flip(dev, 0);
 		intel_finish_page_flip_plane(dev, 0);
@@ -632,12 +638,6 @@ static irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS)
 		intel_finish_page_flip_plane(dev, 1);
 	}
 
-	if (de_iir & DE_PIPEA_VBLANK)
-		drm_handle_vblank(dev, 0);
-
-	if (de_iir & DE_PIPEB_VBLANK)
-		drm_handle_vblank(dev, 1);
-
 	/* check event from PCH */
 	if (de_iir & DE_PCH_EVENT) {
 		if (pch_iir & hotplug_mask)
@@ -2051,10 +2051,22 @@ static int i915_driver_irq_postinstall(struct drm_device *dev)
 			hotplug_en |= HDMIC_HOTPLUG_INT_EN;
 		if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS)
 			hotplug_en |= HDMID_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS)
-			hotplug_en |= SDVOC_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS)
-			hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		if (IS_G4X(dev)) {
+			if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_G4X)
+				hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+			if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_G4X)
+				hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		} else if (IS_GEN4(dev)) {
+			if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_I965)
+				hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+			if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_I965)
+				hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		} else {
+			if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_I915)
+				hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+			if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_I915)
+				hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		}
 		if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) {
 			hotplug_en |= CRT_HOTPLUG_INT_EN;
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 29bfd89..27a296a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -197,6 +197,14 @@
 #define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
 #define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
 #define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
+/* IVB has funny definitions for which plane to flip. */
+#define   MI_DISPLAY_FLIP_IVB_PLANE_A  (0 << 19)
+#define   MI_DISPLAY_FLIP_IVB_PLANE_B  (1 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_A (2 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_B (3 << 19)
+#define   MI_DISPLAY_FLIP_IVB_PLANE_C  (4 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_C (5 << 19)
+
 #define MI_SET_CONTEXT		MI_INSTR(0x18, 0)
 #define   MI_MM_SPACE_GTT		(1<<8)
 #define   MI_MM_SPACE_PHYSICAL		(0<<8)
@@ -437,6 +445,9 @@
 # define VS_TIMER_DISPATCH				(1 << 6)
 # define MI_FLUSH_ENABLE				(1 << 12)
 
+#define GEN6_GT_MODE	0x20d0
+#define   GEN6_GT_MODE_HI	(1 << 9)
+
 #define GFX_MODE	0x02520
 #define GFX_MODE_GEN7	0x0229c
 #define RING_MODE_GEN7(ring)	((ring)->mmio_base+0x29c)
@@ -1483,14 +1494,20 @@
 #define   DPC_HOTPLUG_INT_STATUS		(1 << 28)
 #define   HDMID_HOTPLUG_INT_STATUS		(1 << 27)
 #define   DPD_HOTPLUG_INT_STATUS		(1 << 27)
+/* CRT/TV common between gen3+ */
 #define   CRT_HOTPLUG_INT_STATUS		(1 << 11)
 #define   TV_HOTPLUG_INT_STATUS			(1 << 10)
 #define   CRT_HOTPLUG_MONITOR_MASK		(3 << 8)
 #define   CRT_HOTPLUG_MONITOR_COLOR		(3 << 8)
 #define   CRT_HOTPLUG_MONITOR_MONO		(2 << 8)
 #define   CRT_HOTPLUG_MONITOR_NONE		(0 << 8)
-#define   SDVOC_HOTPLUG_INT_STATUS		(1 << 7)
-#define   SDVOB_HOTPLUG_INT_STATUS		(1 << 6)
+/* SDVO is different across gen3/4 */
+#define   SDVOC_HOTPLUG_INT_STATUS_G4X		(1 << 3)
+#define   SDVOB_HOTPLUG_INT_STATUS_G4X		(1 << 2)
+#define   SDVOC_HOTPLUG_INT_STATUS_I965		(3 << 4)
+#define   SDVOB_HOTPLUG_INT_STATUS_I965		(3 << 2)
+#define   SDVOC_HOTPLUG_INT_STATUS_I915		(1 << 7)
+#define   SDVOB_HOTPLUG_INT_STATUS_I915		(1 << 6)
 
 /* SDVO port control */
 #define SDVOB			0x61140
@@ -3015,6 +3032,8 @@
 #define _PFA_CTL_1               0x68080
 #define _PFB_CTL_1               0x68880
 #define  PF_ENABLE              (1<<31)
+#define  PF_PIPE_SEL_MASK_IVB	(3<<29)
+#define  PF_PIPE_SEL_IVB(pipe)	((pipe)<<29)
 #define  PF_FILTER_MASK		(3<<23)
 #define  PF_FILTER_PROGRAMMED	(0<<23)
 #define  PF_FILTER_MED_3x3	(1<<23)
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 3fe0524..a2c9e56 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -174,6 +174,28 @@ get_lvds_dvo_timing(const struct bdb_lvds_lfp_data *lvds_lfp_data,
 	return (struct lvds_dvo_timing *)(entry + dvo_timing_offset);
 }
 
+/* get lvds_fp_timing entry
+ * this function may return NULL if the corresponding entry is invalid
+ */
+static const struct lvds_fp_timing *
+get_lvds_fp_timing(const struct bdb_header *bdb,
+		   const struct bdb_lvds_lfp_data *data,
+		   const struct bdb_lvds_lfp_data_ptrs *ptrs,
+		   int index)
+{
+	size_t data_ofs = (const u8 *)data - (const u8 *)bdb;
+	u16 data_size = ((const u16 *)data)[-1]; /* stored in header */
+	size_t ofs;
+
+	if (index >= ARRAY_SIZE(ptrs->ptr))
+		return NULL;
+	ofs = ptrs->ptr[index].fp_timing_offset;
+	if (ofs < data_ofs ||
+	    ofs + sizeof(struct lvds_fp_timing) > data_ofs + data_size)
+		return NULL;
+	return (const struct lvds_fp_timing *)((const u8 *)bdb + ofs);
+}
+
 /* Try to find integrated panel data */
 static void
 parse_lfp_panel_data(struct drm_i915_private *dev_priv,
@@ -183,6 +205,7 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv,
 	const struct bdb_lvds_lfp_data *lvds_lfp_data;
 	const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs;
 	const struct lvds_dvo_timing *panel_dvo_timing;
+	const struct lvds_fp_timing *fp_timing;
 	struct drm_display_mode *panel_fixed_mode;
 	int i, downclock;
 
@@ -244,6 +267,19 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv,
 			      "Normal Clock %dKHz, downclock %dKHz\n",
 			      panel_fixed_mode->clock, 10*downclock);
 	}
+
+	fp_timing = get_lvds_fp_timing(bdb, lvds_lfp_data,
+				       lvds_lfp_data_ptrs,
+				       lvds_options->panel_type);
+	if (fp_timing) {
+		/* check the resolution, just to be sure */
+		if (fp_timing->x_res == panel_fixed_mode->hdisplay &&
+		    fp_timing->y_res == panel_fixed_mode->vdisplay) {
+			dev_priv->bios_lvds_val = fp_timing->lvds_reg_val;
+			DRM_DEBUG_KMS("VBT initial LVDS value %x\n",
+				      dev_priv->bios_lvds_val);
+		}
+	}
 }
 
 /* Try to find sdvo panel data */
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index dd3e7e4..8e95c94 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -360,6 +360,27 @@ static const intel_limit_t intel_limits_ironlake_display_port = {
 	.find_pll = intel_find_pll_ironlake_dp,
 };
 
+static bool is_dual_link_lvds(struct drm_i915_private *dev_priv,
+			      unsigned int reg)
+{
+	unsigned int val;
+
+	if (dev_priv->lvds_val)
+		val = dev_priv->lvds_val;
+	else {
+		/* BIOS should set the proper LVDS register value at boot, but
+		 * in reality, it doesn't set the value when the lid is closed;
+		 * we need to check "the value to be set" in VBT when LVDS
+		 * register is uninitialized.
+		 */
+		val = I915_READ(reg);
+		if (!(val & ~LVDS_DETECTED))
+			val = dev_priv->bios_lvds_val;
+		dev_priv->lvds_val = val;
+	}
+	return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP;
+}
+
 static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
 						int refclk)
 {
@@ -368,8 +389,7 @@ static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
 	const intel_limit_t *limit;
 
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
-		if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) ==
-		    LVDS_CLKB_POWER_UP) {
+		if (is_dual_link_lvds(dev_priv, PCH_LVDS)) {
 			/* LVDS dual channel */
 			if (refclk == 100000)
 				limit = &intel_limits_ironlake_dual_lvds_100m;
@@ -397,8 +417,7 @@ static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
 	const intel_limit_t *limit;
 
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
-		if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
-		    LVDS_CLKB_POWER_UP)
+		if (is_dual_link_lvds(dev_priv, LVDS))
 			/* LVDS with dual channel */
 			limit = &intel_limits_g4x_dual_channel_lvds;
 		else
@@ -536,8 +555,7 @@ intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
 		 * reliably set up different single/dual channel state, if we
 		 * even can.
 		 */
-		if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
-		    LVDS_CLKB_POWER_UP)
+		if (is_dual_link_lvds(dev_priv, LVDS))
 			clock.p2 = limit->p2.p2_fast;
 		else
 			clock.p2 = limit->p2.p2_slow;
@@ -2424,18 +2442,6 @@ static void intel_fdi_normal_train(struct drm_crtc *crtc)
 			   FDI_FE_ERRC_ENABLE);
 }
 
-static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	u32 flags = I915_READ(SOUTH_CHICKEN1);
-
-	flags |= FDI_PHASE_SYNC_OVR(pipe);
-	I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */
-	flags |= FDI_PHASE_SYNC_EN(pipe);
-	I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */
-	POSTING_READ(SOUTH_CHICKEN1);
-}
-
 /* The FDI link training functions for ILK/Ibexpeak. */
 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
 {
@@ -2586,9 +2592,6 @@ static void gen6_fdi_link_train(struct drm_crtc *crtc)
 	POSTING_READ(reg);
 	udelay(150);
 
-	if (HAS_PCH_CPT(dev))
-		cpt_phase_pointer_enable(dev, pipe);
-
 	for (i = 0; i < 4; i++) {
 		reg = FDI_TX_CTL(pipe);
 		temp = I915_READ(reg);
@@ -2707,9 +2710,6 @@ static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
 	POSTING_READ(reg);
 	udelay(150);
 
-	if (HAS_PCH_CPT(dev))
-		cpt_phase_pointer_enable(dev, pipe);
-
 	for (i = 0; i < 4; i++) {
 		reg = FDI_TX_CTL(pipe);
 		temp = I915_READ(reg);
@@ -2819,17 +2819,6 @@ static void ironlake_fdi_pll_enable(struct drm_crtc *crtc)
 	}
 }
 
-static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	u32 flags = I915_READ(SOUTH_CHICKEN1);
-
-	flags &= ~(FDI_PHASE_SYNC_EN(pipe));
-	I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */
-	flags &= ~(FDI_PHASE_SYNC_OVR(pipe));
-	I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */
-	POSTING_READ(SOUTH_CHICKEN1);
-}
 static void ironlake_fdi_disable(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
@@ -2859,8 +2848,6 @@ static void ironlake_fdi_disable(struct drm_crtc *crtc)
 		I915_WRITE(FDI_RX_CHICKEN(pipe),
 			   I915_READ(FDI_RX_CHICKEN(pipe) &
 				     ~FDI_RX_PHASE_SYNC_POINTER_EN));
-	} else if (HAS_PCH_CPT(dev)) {
-		cpt_phase_pointer_disable(dev, pipe);
 	}
 
 	/* still set train pattern 1 */
@@ -2908,18 +2895,37 @@ static void intel_clear_scanline_wait(struct drm_device *dev)
 		I915_WRITE_CTL(ring, tmp);
 }
 
+static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	unsigned long flags;
+	bool pending;
+
+	if (atomic_read(&dev_priv->mm.wedged))
+		return false;
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+	pending = to_intel_crtc(crtc)->unpin_work != NULL;
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+
+	return pending;
+}
+
 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
 {
-	struct drm_i915_gem_object *obj;
-	struct drm_i915_private *dev_priv;
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 
 	if (crtc->fb == NULL)
 		return;
 
-	obj = to_intel_framebuffer(crtc->fb)->obj;
-	dev_priv = crtc->dev->dev_private;
 	wait_event(dev_priv->pending_flip_queue,
-		   atomic_read(&obj->pending_flip) == 0);
+		   !intel_crtc_has_pending_flip(crtc));
+
+	mutex_lock(&dev->struct_mutex);
+	intel_finish_fb(crtc->fb);
+	mutex_unlock(&dev->struct_mutex);
 }
 
 static bool intel_crtc_driving_pch(struct drm_crtc *crtc)
@@ -3095,7 +3101,11 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
 		 * as some pre-programmed values are broken,
 		 * e.g. x201.
 		 */
-		I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
+		if (IS_IVYBRIDGE(dev))
+			I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
+						 PF_PIPE_SEL_IVB(pipe));
+		else
+			I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
 		I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos);
 		I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size);
 	}
@@ -3381,23 +3391,6 @@ static void intel_crtc_disable(struct drm_crtc *crtc)
 	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
 	struct drm_device *dev = crtc->dev;
 
-	/* Flush any pending WAITs before we disable the pipe. Note that
-	 * we need to drop the struct_mutex in order to acquire it again
-	 * during the lowlevel dpms routines around a couple of the
-	 * operations. It does not look trivial nor desirable to move
-	 * that locking higher. So instead we leave a window for the
-	 * submission of further commands on the fb before we can actually
-	 * disable it. This race with userspace exists anyway, and we can
-	 * only rely on the pipe being disabled by userspace after it
-	 * receives the hotplug notification and has flushed any pending
-	 * batches.
-	 */
-	if (crtc->fb) {
-		mutex_lock(&dev->struct_mutex);
-		intel_finish_fb(crtc->fb);
-		mutex_unlock(&dev->struct_mutex);
-	}
-
 	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
 	assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
 	assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
@@ -7286,9 +7279,8 @@ static void do_intel_finish_page_flip(struct drm_device *dev,
 
 	atomic_clear_mask(1 << intel_crtc->plane,
 			  &obj->pending_flip.counter);
-	if (atomic_read(&obj->pending_flip) == 0)
-		wake_up(&dev_priv->pending_flip_queue);
 
+	wake_up(&dev_priv->pending_flip_queue);
 	schedule_work(&work->work);
 
 	trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
@@ -7340,14 +7332,14 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
 	if (ret)
-		goto out;
+		goto err;
 
 	/* Offset into the new buffer for cases of shared fbs between CRTCs */
 	offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8;
 
 	ret = BEGIN_LP_RING(6);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
 	/* Can't queue multiple flips, so wait for the previous
 	 * one to finish before executing the next.
@@ -7364,7 +7356,11 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
 	OUT_RING(obj->gtt_offset + offset);
 	OUT_RING(0); /* aux display base address, unused */
 	ADVANCE_LP_RING();
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7381,14 +7377,14 @@ static int intel_gen3_queue_flip(struct drm_device *dev,
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
 	if (ret)
-		goto out;
+		goto err;
 
 	/* Offset into the new buffer for cases of shared fbs between CRTCs */
 	offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8;
 
 	ret = BEGIN_LP_RING(6);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
 	if (intel_crtc->plane)
 		flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
@@ -7403,7 +7399,11 @@ static int intel_gen3_queue_flip(struct drm_device *dev,
 	OUT_RING(MI_NOOP);
 
 	ADVANCE_LP_RING();
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7419,11 +7419,11 @@ static int intel_gen4_queue_flip(struct drm_device *dev,
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
 	if (ret)
-		goto out;
+		goto err;
 
 	ret = BEGIN_LP_RING(4);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
 	/* i965+ uses the linear or tiled offsets from the
 	 * Display Registers (which do not change across a page-flip)
@@ -7442,7 +7442,11 @@ static int intel_gen4_queue_flip(struct drm_device *dev,
 	pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
 	OUT_RING(pf | pipesrc);
 	ADVANCE_LP_RING();
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7458,11 +7462,11 @@ static int intel_gen6_queue_flip(struct drm_device *dev,
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
 	if (ret)
-		goto out;
+		goto err;
 
 	ret = BEGIN_LP_RING(4);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
 	OUT_RING(MI_DISPLAY_FLIP |
 		 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
@@ -7479,7 +7483,11 @@ static int intel_gen6_queue_flip(struct drm_device *dev,
 	pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
 	OUT_RING(pf | pipesrc);
 	ADVANCE_LP_RING();
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7497,22 +7505,43 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
+	uint32_t plane_bit = 0;
 	int ret;
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
 	if (ret)
-		goto out;
+		goto err;
+
+	switch(intel_crtc->plane) {
+	case PLANE_A:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
+		break;
+	case PLANE_B:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
+		break;
+	case PLANE_C:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
+		break;
+	default:
+		WARN_ONCE(1, "unknown plane in flip command\n");
+		ret = -ENODEV;
+		goto err_unpin;
+	}
 
 	ret = intel_ring_begin(ring, 4);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
-	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
+	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
 	intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
 	intel_ring_emit(ring, (obj->gtt_offset));
 	intel_ring_emit(ring, (MI_NOOP));
 	intel_ring_advance(ring);
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -8611,6 +8640,11 @@ static void gen6_init_clock_gating(struct drm_device *dev)
 			   DISPPLANE_TRICKLE_FEED_DISABLE);
 		intel_flush_display_plane(dev_priv, pipe);
 	}
+
+	/* The default value should be 0x200 according to docs, but the two
+	 * platforms I checked have a 0 for this. (Maybe BIOS overrides?) */
+	I915_WRITE(GEN6_GT_MODE, 0xffff << 16);
+	I915_WRITE(GEN6_GT_MODE, GEN6_GT_MODE_HI << 16 | GEN6_GT_MODE_HI);
 }
 
 static void gen7_setup_fixed_func_scheduler(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index fb44e9d..c60100d 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -138,14 +138,17 @@ static void i9xx_write_infoframe(struct drm_encoder *encoder,
 
 	I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags);
 
+	mmiowb();
 	for (i = 0; i < len; i += 4) {
 		I915_WRITE(VIDEO_DIP_DATA, *data);
 		data++;
 	}
+	mmiowb();
 
 	flags |= intel_infoframe_flags(frame);
 
 	I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags);
+	POSTING_READ(VIDEO_DIP_CTL);
 }
 
 static void ironlake_write_infoframe(struct drm_encoder *encoder,
@@ -168,14 +171,17 @@ static void ironlake_write_infoframe(struct drm_encoder *encoder,
 
 	I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags);
 
+	mmiowb();
 	for (i = 0; i < len; i += 4) {
 		I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data);
 		data++;
 	}
+	mmiowb();
 
 	flags |= intel_infoframe_flags(frame);
 
 	I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags);
+	POSTING_READ(reg);
 }
 static void intel_set_infoframe(struct drm_encoder *encoder,
 				struct dip_infoframe *frame)
@@ -549,10 +555,13 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
 	if (!HAS_PCH_SPLIT(dev)) {
 		intel_hdmi->write_infoframe = i9xx_write_infoframe;
 		I915_WRITE(VIDEO_DIP_CTL, 0);
+		POSTING_READ(VIDEO_DIP_CTL);
 	} else {
 		intel_hdmi->write_infoframe = ironlake_write_infoframe;
-		for_each_pipe(i)
+		for_each_pipe(i) {
 			I915_WRITE(TVIDEO_DIP_CTL(i), 0);
+			POSTING_READ(TVIDEO_DIP_CTL(i));
+		}
 	}
 
 	drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs);
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 802fec2..a8b28c4 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -779,14 +779,6 @@ static const struct dmi_system_id intel_no_lvds[] = {
 	},
 	{
 		.callback = intel_no_lvds_dmi_callback,
-		.ident = "ZOTAC ZBOXSD-ID12/ID13",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "ZOTAC"),
-			DMI_MATCH(DMI_BOARD_NAME, "ZBOXSD-ID12/ID13"),
-		},
-	},
-	{
-		.callback = intel_no_lvds_dmi_callback,
 		.ident = "Gigabyte GA-D525TUD",
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 302d3d5..c17325c 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -249,10 +249,15 @@ u32 intel_ring_get_active_head(struct intel_ring_buffer *ring)
 
 static int init_ring_common(struct intel_ring_buffer *ring)
 {
-	drm_i915_private_t *dev_priv = ring->dev->dev_private;
+	struct drm_device *dev = ring->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_object *obj = ring->obj;
+	int ret = 0;
 	u32 head;
 
+	if (HAS_FORCE_WAKE(dev))
+		gen6_gt_force_wake_get(dev_priv);
+
 	/* Stop the ring if it's running. */
 	I915_WRITE_CTL(ring, 0);
 	I915_WRITE_HEAD(ring, 0);
@@ -290,9 +295,9 @@ static int init_ring_common(struct intel_ring_buffer *ring)
 			| RING_VALID);
 
 	/* If the head is still not zero, the ring is dead */
-	if ((I915_READ_CTL(ring) & RING_VALID) == 0 ||
-	    I915_READ_START(ring) != obj->gtt_offset ||
-	    (I915_READ_HEAD(ring) & HEAD_ADDR) != 0) {
+	if (wait_for((I915_READ_CTL(ring) & RING_VALID) != 0 &&
+		     I915_READ_START(ring) == obj->gtt_offset &&
+		     (I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) {
 		DRM_ERROR("%s initialization failed "
 				"ctl %08x head %08x tail %08x start %08x\n",
 				ring->name,
@@ -300,7 +305,8 @@ static int init_ring_common(struct intel_ring_buffer *ring)
 				I915_READ_HEAD(ring),
 				I915_READ_TAIL(ring),
 				I915_READ_START(ring));
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
 	if (!drm_core_check_feature(ring->dev, DRIVER_MODESET))
@@ -312,7 +318,11 @@ static int init_ring_common(struct intel_ring_buffer *ring)
 		ring->last_retired_head = -1;
 	}
 
-	return 0;
+out:
+	if (HAS_FORCE_WAKE(dev))
+		gen6_gt_force_wake_put(dev_priv);
+
+	return ret;
 }
 
 static int
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index b96e8c8..1b6b157 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -2528,6 +2528,7 @@ bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *intel_encoder;
 	struct intel_sdvo *intel_sdvo;
+	u32 hotplug_mask;
 	int i;
 
 	intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
@@ -2558,10 +2559,17 @@ bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
 		}
 	}
 
-	if (IS_SDVOB(sdvo_reg))
-		dev_priv->hotplug_supported_mask |= SDVOB_HOTPLUG_INT_STATUS;
-	else
-		dev_priv->hotplug_supported_mask |= SDVOC_HOTPLUG_INT_STATUS;
+	hotplug_mask = 0;
+	if (IS_G4X(dev)) {
+		hotplug_mask = IS_SDVOB(sdvo_reg) ?
+			SDVOB_HOTPLUG_INT_STATUS_G4X : SDVOC_HOTPLUG_INT_STATUS_G4X;
+	} else if (IS_GEN4(dev)) {
+		hotplug_mask = IS_SDVOB(sdvo_reg) ?
+			SDVOB_HOTPLUG_INT_STATUS_I965 : SDVOC_HOTPLUG_INT_STATUS_I965;
+	} else {
+		hotplug_mask = IS_SDVOB(sdvo_reg) ?
+			SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
+	}
 
 	drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
 
@@ -2569,14 +2577,6 @@ bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
 	if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
 		goto err;
 
-	/* Set up hotplug command - note paranoia about contents of reply.
-	 * We assume that the hardware is in a sane state, and only touch
-	 * the bits we think we understand.
-	 */
-	intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG,
-			     &intel_sdvo->hotplug_active, 2);
-	intel_sdvo->hotplug_active[0] &= ~0x3;
-
 	if (intel_sdvo_output_setup(intel_sdvo,
 				    intel_sdvo->caps.output_flags) != true) {
 		DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",
@@ -2584,6 +2584,12 @@ bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
 		goto err;
 	}
 
+	/* Only enable the hotplug irq if we need it, to work around noisy
+	 * hotplug lines.
+	 */
+	if (intel_sdvo->hotplug_active[0])
+		dev_priv->hotplug_supported_mask |= hotplug_mask;
+
 	intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
 
 	/* Set the input timing to the screen. Assume always input 0. */
diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c
index 473f30a..71b6235 100644
--- a/drivers/gpu/drm/nouveau/nv04_dfp.c
+++ b/drivers/gpu/drm/nouveau/nv04_dfp.c
@@ -504,7 +504,7 @@ static void nv04_dfp_update_backlight(struct drm_encoder *encoder, int mode)
 
 static inline bool is_powersaving_dpms(int mode)
 {
-	return (mode != DRM_MODE_DPMS_ON);
+	return mode != DRM_MODE_DPMS_ON && mode != NV_DPMS_CLEARED;
 }
 
 static void nv04_lvds_dpms(struct drm_encoder *encoder, int mode)
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 19f4082..15594a3 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1533,8 +1533,12 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc)
 				 * crtc virtual pixel clock.
 				 */
 				if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_encoder))) {
-					if (ASIC_IS_DCE5(rdev) || rdev->clock.dp_extclk)
+					if (rdev->clock.dp_extclk)
 						return ATOM_PPLL_INVALID;
+					else if (ASIC_IS_DCE6(rdev))
+						return ATOM_PPLL0;
+					else if (ASIC_IS_DCE5(rdev))
+						return ATOM_DCPLL;
 				}
 			}
 		}
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index f6176bc..23e3ea6 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -95,7 +95,7 @@ static bool radeon_atom_mode_fixup(struct drm_encoder *encoder,
 	    ((radeon_encoder->active_device & (ATOM_DEVICE_DFP_SUPPORT | ATOM_DEVICE_LCD_SUPPORT)) ||
 	     (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE))) {
 		struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
-		radeon_dp_set_link_config(connector, mode);
+		radeon_dp_set_link_config(connector, adjusted_mode);
 	}
 
 	return true;
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index 22c84bc..2cbd369 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -2670,6 +2670,7 @@ static bool evergreen_vm_reg_valid(u32 reg)
 
 	/* check config regs */
 	switch (reg) {
+	case WAIT_UNTIL:
 	case GRBM_GFX_INDEX:
 	case CP_STRMOUT_CNTL:
 	case CP_COHER_CNTL:
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 3fb7ca9..ab63bcd 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -689,7 +689,7 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
 		ret = connector_status_disconnected;
 
 	if (radeon_connector->ddc_bus)
-		dret = radeon_ddc_probe(radeon_connector);
+		dret = radeon_ddc_probe(radeon_connector, false);
 	if (dret) {
 		radeon_connector->detected_by_load = false;
 		if (radeon_connector->edid) {
@@ -895,7 +895,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
 		return connector->status;
 
 	if (radeon_connector->ddc_bus)
-		dret = radeon_ddc_probe(radeon_connector);
+		dret = radeon_ddc_probe(radeon_connector, false);
 	if (dret) {
 		radeon_connector->detected_by_load = false;
 		if (radeon_connector->edid) {
@@ -1335,7 +1335,8 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
 		if (encoder) {
 			/* setup ddc on the bridge */
 			radeon_atom_ext_encoder_setup_ddc(encoder);
-			if (radeon_ddc_probe(radeon_connector)) /* try DDC */
+			/* bridge chips are always aux */
+			if (radeon_ddc_probe(radeon_connector, true)) /* try DDC */
 				ret = connector_status_connected;
 			else if (radeon_connector->dac_load_detect) { /* try load detection */
 				struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
@@ -1353,7 +1354,8 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
 				if (radeon_dp_getdpcd(radeon_connector))
 					ret = connector_status_connected;
 			} else {
-				if (radeon_ddc_probe(radeon_connector))
+				/* try non-aux ddc (DP to DVI/HMDI/etc. adapter) */
+				if (radeon_ddc_probe(radeon_connector, false))
 					ret = connector_status_connected;
 			}
 		}
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 0a1d4bd..173b97b 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -713,10 +713,15 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
 	if (radeon_connector->router.ddc_valid)
 		radeon_router_select_ddc_port(radeon_connector);
 
-	if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
-	    (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) ||
-	    (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector->base) !=
-	     ENCODER_OBJECT_ID_NONE)) {
+	if (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector->base) !=
+	    ENCODER_OBJECT_ID_NONE) {
+		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
+
+		if (dig->dp_i2c_bus)
+			radeon_connector->edid = drm_get_edid(&radeon_connector->base,
+							      &dig->dp_i2c_bus->adapter);
+	} else if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
+		   (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
 		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
 
 		if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index 3edec1c..6076e85 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -39,7 +39,7 @@ extern u32 radeon_atom_hw_i2c_func(struct i2c_adapter *adap);
  * radeon_ddc_probe
  *
  */
-bool radeon_ddc_probe(struct radeon_connector *radeon_connector)
+bool radeon_ddc_probe(struct radeon_connector *radeon_connector, bool use_aux)
 {
 	u8 out = 0x0;
 	u8 buf[8];
@@ -63,7 +63,13 @@ bool radeon_ddc_probe(struct radeon_connector *radeon_connector)
 	if (radeon_connector->router.ddc_valid)
 		radeon_router_select_ddc_port(radeon_connector);
 
-	ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2);
+	if (use_aux) {
+		struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
+		ret = i2c_transfer(&dig->dp_i2c_bus->adapter, msgs, 2);
+	} else {
+		ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2);
+	}
+
 	if (ret != 2)
 		/* Couldn't find an accessible DDC on this connector */
 		return false;
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index d92f483..53b07a3 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -617,6 +617,14 @@ static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_enc
 	enum drm_connector_status found = connector_status_disconnected;
 	bool color = true;
 
+	/* just don't bother on RN50 those chip are often connected to remoting
+	 * console hw and often we get failure to load detect those. So to make
+	 * everyone happy report the encoder as always connected.
+	 */
+	if (ASIC_IS_RN50(rdev)) {
+		return connector_status_connected;
+	}
+
 	/* save the regs we need */
 	vclk_ecp_cntl = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
 	crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 778c1f0..dabfefd 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -527,7 +527,7 @@ extern void radeon_i2c_put_byte(struct radeon_i2c_chan *i2c,
 				u8 val);
 extern void radeon_router_select_ddc_port(struct radeon_connector *radeon_connector);
 extern void radeon_router_select_cd_port(struct radeon_connector *radeon_connector);
-extern bool radeon_ddc_probe(struct radeon_connector *radeon_connector);
+extern bool radeon_ddc_probe(struct radeon_connector *radeon_connector, bool use_aux);
 extern int radeon_ddc_get_modes(struct radeon_connector *radeon_connector);
 
 extern struct drm_encoder *radeon_best_encoder(struct drm_connector *connector);
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index 8d9dc44..3234224 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -22,13 +22,17 @@
 static u8 *udl_get_edid(struct udl_device *udl)
 {
 	u8 *block;
-	char rbuf[3];
+	char *rbuf;
 	int ret, i;
 
 	block = kmalloc(EDID_LENGTH, GFP_KERNEL);
 	if (block == NULL)
 		return NULL;
 
+	rbuf = kmalloc(2, GFP_KERNEL);
+	if (rbuf == NULL)
+		goto error;
+
 	for (i = 0; i < EDID_LENGTH; i++) {
 		ret = usb_control_msg(udl->ddev->usbdev,
 				      usb_rcvctrlpipe(udl->ddev->usbdev, 0), (0x02),
@@ -36,16 +40,17 @@ static u8 *udl_get_edid(struct udl_device *udl)
 				      HZ);
 		if (ret < 1) {
 			DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret);
-			i--;
 			goto error;
 		}
 		block[i] = rbuf[1];
 	}
 
+	kfree(rbuf);
 	return block;
 
 error:
 	kfree(block);
+	kfree(rbuf);
 	return NULL;
 }
 
@@ -59,6 +64,14 @@ static int udl_get_modes(struct drm_connector *connector)
 
 	connector->display_info.raw_edid = (char *)edid;
 
+	/*
+	 * We only read the main block, but if the monitor reports extension
+	 * blocks then the drm edid code expects them to be present, so patch
+	 * the extension count to 0.
+	 */
+	edid->checksum += edid->extensions;
+	edid->extensions = 0;
+
 	drm_mode_connector_update_edid_property(connector, edid);
 	ret = drm_add_edid_modes(connector, edid);
 	connector->display_info.raw_edid = NULL;
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 41ad6ff..5583899 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -664,6 +664,9 @@
 #define USB_VENDOR_ID_SIGMA_MICRO	0x1c4f
 #define USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD	0x0002
 
+#define USB_VENDOR_ID_SIGMATEL		0x066F
+#define USB_DEVICE_ID_SIGMATEL_STMP3780	0x3780
+
 #define USB_VENDOR_ID_SKYCABLE			0x1223
 #define	USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER	0x3F07
 
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index dc9697c..9fea98f 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -78,6 +78,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET },
diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c
index 8fa2632..7272176 100644
--- a/drivers/hwmon/lm73.c
+++ b/drivers/hwmon/lm73.c
@@ -49,6 +49,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 	struct i2c_client *client = to_i2c_client(dev);
 	long temp;
 	short value;
+	s32 err;
 
 	int status = kstrtol(buf, 10, &temp);
 	if (status < 0)
@@ -57,8 +58,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 	/* Write value */
 	value = (short) SENSORS_LIMIT(temp/250, (LM73_TEMP_MIN*4),
 		(LM73_TEMP_MAX*4)) << 5;
-	i2c_smbus_write_word_swapped(client, attr->index, value);
-	return count;
+	err = i2c_smbus_write_word_swapped(client, attr->index, value);
+	return (err < 0) ? err : count;
 }
 
 static ssize_t show_temp(struct device *dev, struct device_attribute *da,
@@ -66,11 +67,16 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *da,
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
 	struct i2c_client *client = to_i2c_client(dev);
+	int temp;
+
+	s32 err = i2c_smbus_read_word_swapped(client, attr->index);
+	if (err < 0)
+		return err;
+
 	/* use integer division instead of equivalent right shift to
 	   guarantee arithmetic shift and preserve the sign */
-	int temp = ((s16) (i2c_smbus_read_word_swapped(client,
-		    attr->index))*250) / 32;
-	return sprintf(buf, "%d\n", temp);
+	temp = (((s16) err) * 250) / 32;
+	return scnprintf(buf, PAGE_SIZE, "%d\n", temp);
 }
 
 
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index c438e46..3f41d9f 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -524,6 +524,7 @@ void nes_iwarp_ce_handler(struct nes_device *, struct nes_hw_cq *);
 int nes_destroy_cqp(struct nes_device *);
 int nes_nic_cm_xmit(struct sk_buff *, struct net_device *);
 void nes_recheck_link_status(struct work_struct *work);
+void nes_terminate_timeout(unsigned long context);
 
 /* nes_nic.c */
 struct net_device *nes_netdev_init(struct nes_device *, void __iomem *);
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index d42c9f4..96801c3 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -75,7 +75,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
 static void process_critical_error(struct nes_device *nesdev);
 static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number);
 static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode);
-static void nes_terminate_timeout(unsigned long context);
 static void nes_terminate_start_timer(struct nes_qp *nesqp);
 
 #ifdef CONFIG_INFINIBAND_NES_DEBUG
@@ -3522,7 +3521,7 @@ static void nes_terminate_received(struct nes_device *nesdev,
 }
 
 /* Timeout routine in case terminate fails to complete */
-static void nes_terminate_timeout(unsigned long context)
+void nes_terminate_timeout(unsigned long context)
 {
 	struct nes_qp *nesqp = (struct nes_qp *)(unsigned long)context;
 
@@ -3532,11 +3531,7 @@ static void nes_terminate_timeout(unsigned long context)
 /* Set a timer in case hw cannot complete the terminate sequence */
 static void nes_terminate_start_timer(struct nes_qp *nesqp)
 {
-	init_timer(&nesqp->terminate_timer);
-	nesqp->terminate_timer.function = nes_terminate_timeout;
-	nesqp->terminate_timer.expires = jiffies + HZ;
-	nesqp->terminate_timer.data = (unsigned long)nesqp;
-	add_timer(&nesqp->terminate_timer);
+	mod_timer(&nesqp->terminate_timer, (jiffies + HZ));
 }
 
 /**
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 8b8812d..da84ea3 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -1404,6 +1404,9 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
 	}
 
 	nesqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR);
+	init_timer(&nesqp->terminate_timer);
+	nesqp->terminate_timer.function = nes_terminate_timeout;
+	nesqp->terminate_timer.data = (unsigned long)nesqp;
 
 	/* update the QP table */
 	nesdev->nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = nesqp;
@@ -1413,7 +1416,6 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
 	return &nesqp->ibqp;
 }
 
-
 /**
  * nes_clean_cq
  */
@@ -2559,6 +2561,11 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 			return ibmr;
 		case IWNES_MEMREG_TYPE_QP:
 		case IWNES_MEMREG_TYPE_CQ:
+			if (!region->length) {
+				nes_debug(NES_DBG_MR, "Unable to register zero length region for CQ\n");
+				ib_umem_release(region);
+				return ERR_PTR(-EINVAL);
+			}
 			nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL);
 			if (!nespbl) {
 				nes_debug(NES_DBG_MR, "Unable to allocate PBL\n");
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 0d251d3..9c34db8 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1826,10 +1826,17 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn,
 			if (!pte)
 				return -ENOMEM;
 			/* It is large page*/
-			if (largepage_lvl > 1)
+			if (largepage_lvl > 1) {
 				pteval |= DMA_PTE_LARGE_PAGE;
-			else
+				/* Ensure that old small page tables are removed to make room
+				   for superpage, if they exist. */
+				dma_pte_clear_range(domain, iov_pfn,
+						    iov_pfn + lvl_to_nr_pages(largepage_lvl) - 1);
+				dma_pte_free_pagetable(domain, iov_pfn,
+						       iov_pfn + lvl_to_nr_pages(largepage_lvl) - 1);
+			} else {
 				pteval &= ~(uint64_t)DMA_PTE_LARGE_PAGE;
+			}
 
 		}
 		/* We don't need lock here, nobody else
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index a1a3e6d..f011d4b 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1563,6 +1563,14 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl **param)
 	if (copy_from_user(dmi, user, tmp.data_size))
 		goto bad;
 
+	/*
+	 * Abort if something changed the ioctl data while it was being copied.
+	 */
+	if (dmi->data_size != tmp.data_size) {
+		DMERR("rejecting ioctl: data size modified while processing parameters");
+		goto bad;
+	}
+
 	/* Wipe the user buffer so we do not return it to userspace */
 	if (secure_data && clear_user(user, tmp.data_size))
 		goto bad;
diff --git a/drivers/md/persistent-data/dm-btree-internal.h b/drivers/md/persistent-data/dm-btree-internal.h
index 5709bfe..accbb05 100644
--- a/drivers/md/persistent-data/dm-btree-internal.h
+++ b/drivers/md/persistent-data/dm-btree-internal.h
@@ -36,13 +36,13 @@ struct node_header {
 	__le32 padding;
 } __packed;
 
-struct node {
+struct btree_node {
 	struct node_header header;
 	__le64 keys[0];
 } __packed;
 
 
-void inc_children(struct dm_transaction_manager *tm, struct node *n,
+void inc_children(struct dm_transaction_manager *tm, struct btree_node *n,
 		  struct dm_btree_value_type *vt);
 
 int new_block(struct dm_btree_info *info, struct dm_block **result);
@@ -64,7 +64,7 @@ struct ro_spine {
 void init_ro_spine(struct ro_spine *s, struct dm_btree_info *info);
 int exit_ro_spine(struct ro_spine *s);
 int ro_step(struct ro_spine *s, dm_block_t new_child);
-struct node *ro_node(struct ro_spine *s);
+struct btree_node *ro_node(struct ro_spine *s);
 
 struct shadow_spine {
 	struct dm_btree_info *info;
@@ -98,17 +98,17 @@ int shadow_root(struct shadow_spine *s);
 /*
  * Some inlines.
  */
-static inline __le64 *key_ptr(struct node *n, uint32_t index)
+static inline __le64 *key_ptr(struct btree_node *n, uint32_t index)
 {
 	return n->keys + index;
 }
 
-static inline void *value_base(struct node *n)
+static inline void *value_base(struct btree_node *n)
 {
 	return &n->keys[le32_to_cpu(n->header.max_entries)];
 }
 
-static inline void *value_ptr(struct node *n, uint32_t index)
+static inline void *value_ptr(struct btree_node *n, uint32_t index)
 {
 	uint32_t value_size = le32_to_cpu(n->header.value_size);
 	return value_base(n) + (value_size * index);
@@ -117,7 +117,7 @@ static inline void *value_ptr(struct node *n, uint32_t index)
 /*
  * Assumes the values are suitably-aligned and converts to core format.
  */
-static inline uint64_t value64(struct node *n, uint32_t index)
+static inline uint64_t value64(struct btree_node *n, uint32_t index)
 {
 	__le64 *values_le = value_base(n);
 
@@ -127,7 +127,7 @@ static inline uint64_t value64(struct node *n, uint32_t index)
 /*
  * Searching for a key within a single node.
  */
-int lower_bound(struct node *n, uint64_t key);
+int lower_bound(struct btree_node *n, uint64_t key);
 
 extern struct dm_block_validator btree_node_validator;
 
diff --git a/drivers/md/persistent-data/dm-btree-remove.c b/drivers/md/persistent-data/dm-btree-remove.c
index aa71e23..c4f2813 100644
--- a/drivers/md/persistent-data/dm-btree-remove.c
+++ b/drivers/md/persistent-data/dm-btree-remove.c
@@ -53,7 +53,7 @@
 /*
  * Some little utilities for moving node data around.
  */
-static void node_shift(struct node *n, int shift)
+static void node_shift(struct btree_node *n, int shift)
 {
 	uint32_t nr_entries = le32_to_cpu(n->header.nr_entries);
 	uint32_t value_size = le32_to_cpu(n->header.value_size);
@@ -79,7 +79,7 @@ static void node_shift(struct node *n, int shift)
 	}
 }
 
-static void node_copy(struct node *left, struct node *right, int shift)
+static void node_copy(struct btree_node *left, struct btree_node *right, int shift)
 {
 	uint32_t nr_left = le32_to_cpu(left->header.nr_entries);
 	uint32_t value_size = le32_to_cpu(left->header.value_size);
@@ -108,7 +108,7 @@ static void node_copy(struct node *left, struct node *right, int shift)
 /*
  * Delete a specific entry from a leaf node.
  */
-static void delete_at(struct node *n, unsigned index)
+static void delete_at(struct btree_node *n, unsigned index)
 {
 	unsigned nr_entries = le32_to_cpu(n->header.nr_entries);
 	unsigned nr_to_copy = nr_entries - (index + 1);
@@ -128,7 +128,7 @@ static void delete_at(struct node *n, unsigned index)
 	n->header.nr_entries = cpu_to_le32(nr_entries - 1);
 }
 
-static unsigned merge_threshold(struct node *n)
+static unsigned merge_threshold(struct btree_node *n)
 {
 	return le32_to_cpu(n->header.max_entries) / 3;
 }
@@ -136,7 +136,7 @@ static unsigned merge_threshold(struct node *n)
 struct child {
 	unsigned index;
 	struct dm_block *block;
-	struct node *n;
+	struct btree_node *n;
 };
 
 static struct dm_btree_value_type le64_type = {
@@ -147,7 +147,7 @@ static struct dm_btree_value_type le64_type = {
 	.equal = NULL
 };
 
-static int init_child(struct dm_btree_info *info, struct node *parent,
+static int init_child(struct dm_btree_info *info, struct btree_node *parent,
 		      unsigned index, struct child *result)
 {
 	int r, inc;
@@ -177,7 +177,7 @@ static int exit_child(struct dm_btree_info *info, struct child *c)
 	return dm_tm_unlock(info->tm, c->block);
 }
 
-static void shift(struct node *left, struct node *right, int count)
+static void shift(struct btree_node *left, struct btree_node *right, int count)
 {
 	uint32_t nr_left = le32_to_cpu(left->header.nr_entries);
 	uint32_t nr_right = le32_to_cpu(right->header.nr_entries);
@@ -203,11 +203,11 @@ static void shift(struct node *left, struct node *right, int count)
 	right->header.nr_entries = cpu_to_le32(nr_right + count);
 }
 
-static void __rebalance2(struct dm_btree_info *info, struct node *parent,
+static void __rebalance2(struct dm_btree_info *info, struct btree_node *parent,
 			 struct child *l, struct child *r)
 {
-	struct node *left = l->n;
-	struct node *right = r->n;
+	struct btree_node *left = l->n;
+	struct btree_node *right = r->n;
 	uint32_t nr_left = le32_to_cpu(left->header.nr_entries);
 	uint32_t nr_right = le32_to_cpu(right->header.nr_entries);
 	unsigned threshold = 2 * merge_threshold(left) + 1;
@@ -239,7 +239,7 @@ static int rebalance2(struct shadow_spine *s, struct dm_btree_info *info,
 		      unsigned left_index)
 {
 	int r;
-	struct node *parent;
+	struct btree_node *parent;
 	struct child left, right;
 
 	parent = dm_block_data(shadow_current(s));
@@ -270,9 +270,9 @@ static int rebalance2(struct shadow_spine *s, struct dm_btree_info *info,
  * in right, then rebalance2.  This wastes some cpu, but I want something
  * simple atm.
  */
-static void delete_center_node(struct dm_btree_info *info, struct node *parent,
+static void delete_center_node(struct dm_btree_info *info, struct btree_node *parent,
 			       struct child *l, struct child *c, struct child *r,
-			       struct node *left, struct node *center, struct node *right,
+			       struct btree_node *left, struct btree_node *center, struct btree_node *right,
 			       uint32_t nr_left, uint32_t nr_center, uint32_t nr_right)
 {
 	uint32_t max_entries = le32_to_cpu(left->header.max_entries);
@@ -301,9 +301,9 @@ static void delete_center_node(struct dm_btree_info *info, struct node *parent,
 /*
  * Redistributes entries among 3 sibling nodes.
  */
-static void redistribute3(struct dm_btree_info *info, struct node *parent,
+static void redistribute3(struct dm_btree_info *info, struct btree_node *parent,
 			  struct child *l, struct child *c, struct child *r,
-			  struct node *left, struct node *center, struct node *right,
+			  struct btree_node *left, struct btree_node *center, struct btree_node *right,
 			  uint32_t nr_left, uint32_t nr_center, uint32_t nr_right)
 {
 	int s;
@@ -343,12 +343,12 @@ static void redistribute3(struct dm_btree_info *info, struct node *parent,
 	*key_ptr(parent, r->index) = right->keys[0];
 }
 
-static void __rebalance3(struct dm_btree_info *info, struct node *parent,
+static void __rebalance3(struct dm_btree_info *info, struct btree_node *parent,
 			 struct child *l, struct child *c, struct child *r)
 {
-	struct node *left = l->n;
-	struct node *center = c->n;
-	struct node *right = r->n;
+	struct btree_node *left = l->n;
+	struct btree_node *center = c->n;
+	struct btree_node *right = r->n;
 
 	uint32_t nr_left = le32_to_cpu(left->header.nr_entries);
 	uint32_t nr_center = le32_to_cpu(center->header.nr_entries);
@@ -371,7 +371,7 @@ static int rebalance3(struct shadow_spine *s, struct dm_btree_info *info,
 		      unsigned left_index)
 {
 	int r;
-	struct node *parent = dm_block_data(shadow_current(s));
+	struct btree_node *parent = dm_block_data(shadow_current(s));
 	struct child left, center, right;
 
 	/*
@@ -421,7 +421,7 @@ static int get_nr_entries(struct dm_transaction_manager *tm,
 {
 	int r;
 	struct dm_block *block;
-	struct node *n;
+	struct btree_node *n;
 
 	r = dm_tm_read_lock(tm, b, &btree_node_validator, &block);
 	if (r)
@@ -438,7 +438,7 @@ static int rebalance_children(struct shadow_spine *s,
 {
 	int i, r, has_left_sibling, has_right_sibling;
 	uint32_t child_entries;
-	struct node *n;
+	struct btree_node *n;
 
 	n = dm_block_data(shadow_current(s));
 
@@ -483,7 +483,7 @@ static int rebalance_children(struct shadow_spine *s,
 	return r;
 }
 
-static int do_leaf(struct node *n, uint64_t key, unsigned *index)
+static int do_leaf(struct btree_node *n, uint64_t key, unsigned *index)
 {
 	int i = lower_bound(n, key);
 
@@ -506,7 +506,7 @@ static int remove_raw(struct shadow_spine *s, struct dm_btree_info *info,
 		      uint64_t key, unsigned *index)
 {
 	int i = *index, r;
-	struct node *n;
+	struct btree_node *n;
 
 	for (;;) {
 		r = shadow_step(s, root, vt);
@@ -556,7 +556,7 @@ int dm_btree_remove(struct dm_btree_info *info, dm_block_t root,
 	unsigned level, last_level = info->levels - 1;
 	int index = 0, r = 0;
 	struct shadow_spine spine;
-	struct node *n;
+	struct btree_node *n;
 
 	init_shadow_spine(&spine, info);
 	for (level = 0; level < info->levels; level++) {
diff --git a/drivers/md/persistent-data/dm-btree-spine.c b/drivers/md/persistent-data/dm-btree-spine.c
index d9a7912..2f0805c 100644
--- a/drivers/md/persistent-data/dm-btree-spine.c
+++ b/drivers/md/persistent-data/dm-btree-spine.c
@@ -23,7 +23,7 @@ static void node_prepare_for_write(struct dm_block_validator *v,
 				   struct dm_block *b,
 				   size_t block_size)
 {
-	struct node *n = dm_block_data(b);
+	struct btree_node *n = dm_block_data(b);
 	struct node_header *h = &n->header;
 
 	h->blocknr = cpu_to_le64(dm_block_location(b));
@@ -38,7 +38,7 @@ static int node_check(struct dm_block_validator *v,
 		      struct dm_block *b,
 		      size_t block_size)
 {
-	struct node *n = dm_block_data(b);
+	struct btree_node *n = dm_block_data(b);
 	struct node_header *h = &n->header;
 	size_t value_size;
 	__le32 csum_disk;
@@ -164,7 +164,7 @@ int ro_step(struct ro_spine *s, dm_block_t new_child)
 	return r;
 }
 
-struct node *ro_node(struct ro_spine *s)
+struct btree_node *ro_node(struct ro_spine *s)
 {
 	struct dm_block *block;
 
diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index d12b2cc..371f3d4 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -38,7 +38,7 @@ static void array_insert(void *base, size_t elt_size, unsigned nr_elts,
 /*----------------------------------------------------------------*/
 
 /* makes the assumption that no two keys are the same. */
-static int bsearch(struct node *n, uint64_t key, int want_hi)
+static int bsearch(struct btree_node *n, uint64_t key, int want_hi)
 {
 	int lo = -1, hi = le32_to_cpu(n->header.nr_entries);
 
@@ -58,12 +58,12 @@ static int bsearch(struct node *n, uint64_t key, int want_hi)
 	return want_hi ? hi : lo;
 }
 
-int lower_bound(struct node *n, uint64_t key)
+int lower_bound(struct btree_node *n, uint64_t key)
 {
 	return bsearch(n, key, 0);
 }
 
-void inc_children(struct dm_transaction_manager *tm, struct node *n,
+void inc_children(struct dm_transaction_manager *tm, struct btree_node *n,
 		  struct dm_btree_value_type *vt)
 {
 	unsigned i;
@@ -77,7 +77,7 @@ void inc_children(struct dm_transaction_manager *tm, struct node *n,
 			vt->inc(vt->context, value_ptr(n, i));
 }
 
-static int insert_at(size_t value_size, struct node *node, unsigned index,
+static int insert_at(size_t value_size, struct btree_node *node, unsigned index,
 		      uint64_t key, void *value)
 		      __dm_written_to_disk(value)
 {
@@ -122,7 +122,7 @@ int dm_btree_empty(struct dm_btree_info *info, dm_block_t *root)
 {
 	int r;
 	struct dm_block *b;
-	struct node *n;
+	struct btree_node *n;
 	size_t block_size;
 	uint32_t max_entries;
 
@@ -154,7 +154,7 @@ EXPORT_SYMBOL_GPL(dm_btree_empty);
 #define MAX_SPINE_DEPTH 64
 struct frame {
 	struct dm_block *b;
-	struct node *n;
+	struct btree_node *n;
 	unsigned level;
 	unsigned nr_children;
 	unsigned current_child;
@@ -295,7 +295,7 @@ EXPORT_SYMBOL_GPL(dm_btree_del);
 /*----------------------------------------------------------------*/
 
 static int btree_lookup_raw(struct ro_spine *s, dm_block_t block, uint64_t key,
-			    int (*search_fn)(struct node *, uint64_t),
+			    int (*search_fn)(struct btree_node *, uint64_t),
 			    uint64_t *result_key, void *v, size_t value_size)
 {
 	int i, r;
@@ -406,7 +406,7 @@ static int btree_split_sibling(struct shadow_spine *s, dm_block_t root,
 	size_t size;
 	unsigned nr_left, nr_right;
 	struct dm_block *left, *right, *parent;
-	struct node *ln, *rn, *pn;
+	struct btree_node *ln, *rn, *pn;
 	__le64 location;
 
 	left = shadow_current(s);
@@ -491,7 +491,7 @@ static int btree_split_beneath(struct shadow_spine *s, uint64_t key)
 	size_t size;
 	unsigned nr_left, nr_right;
 	struct dm_block *left, *right, *new_parent;
-	struct node *pn, *ln, *rn;
+	struct btree_node *pn, *ln, *rn;
 	__le64 val;
 
 	new_parent = shadow_current(s);
@@ -576,7 +576,7 @@ static int btree_insert_raw(struct shadow_spine *s, dm_block_t root,
 			    uint64_t key, unsigned *index)
 {
 	int r, i = *index, top = 1;
-	struct node *node;
+	struct btree_node *node;
 
 	for (;;) {
 		r = shadow_step(s, root, vt);
@@ -643,7 +643,7 @@ static int insert(struct dm_btree_info *info, dm_block_t root,
 	unsigned level, index = -1, last_level = info->levels - 1;
 	dm_block_t block = root;
 	struct shadow_spine spine;
-	struct node *n;
+	struct btree_node *n;
 	struct dm_btree_value_type le64_type;
 
 	le64_type.context = NULL;
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index ffc3d48..ef80da6 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -19,6 +19,10 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 
+static struct device_type mfd_dev_type = {
+	.name	= "mfd_device",
+};
+
 int mfd_cell_enable(struct platform_device *pdev)
 {
 	const struct mfd_cell *cell = mfd_get_cell(pdev);
@@ -88,6 +92,7 @@ static int mfd_add_device(struct device *parent, int id,
 		goto fail_device;
 
 	pdev->dev.parent = parent;
+	pdev->dev.type = &mfd_dev_type;
 
 	if (cell->pdata_size) {
 		ret = platform_device_add_data(pdev,
@@ -183,10 +188,16 @@ EXPORT_SYMBOL(mfd_add_devices);
 
 static int mfd_remove_devices_fn(struct device *dev, void *c)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	const struct mfd_cell *cell = mfd_get_cell(pdev);
+	struct platform_device *pdev;
+	const struct mfd_cell *cell;
 	atomic_t **usage_count = c;
 
+	if (dev->type != &mfd_dev_type)
+		return 0;
+
+	pdev = to_platform_device(dev);
+	cell = mfd_get_cell(pdev);
+
 	/* find the base address of usage_count pointers (for freeing) */
 	if (!*usage_count || (cell->usage_count < *usage_count))
 		*usage_count = cell->usage_count;
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 9d7ca1e..8d46e68 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -541,6 +541,7 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq)
 		case 1:
 		case 2:
 		case 3:
+		case 4:
 			regmap_patch = wm1811_reva_patch;
 			patch_regs = ARRAY_SIZE(wm1811_reva_patch);
 			break;
diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c
index 821c34c..0b9b472 100644
--- a/drivers/mtd/nand/cs553x_nand.c
+++ b/drivers/mtd/nand/cs553x_nand.c
@@ -237,6 +237,7 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
 	this->ecc.hwctl  = cs_enable_hwecc;
 	this->ecc.calculate = cs_calculate_ecc;
 	this->ecc.correct  = nand_correct_data;
+	this->ecc.strength = 1;
 
 	/* Enable the following for a flash based bad block table */
 	this->bbt_options = NAND_BBT_USE_FLASH;
@@ -248,8 +249,6 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
 		goto out_ior;
 	}
 
-	this->ecc.strength = 1;
-
 	new_mtd->name = kasprintf(GFP_KERNEL, "cs553x_nand_cs%d", cs);
 
 	cs553x_mtd[cs] = new_mtd;
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index e8ea710..022feb4 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -135,6 +135,15 @@ int gpmi_init(struct gpmi_nand_data *this)
 	if (ret)
 		goto err_out;
 
+	/*
+	 * Reset BCH here, too. We got failures otherwise :(
+	 * See later BCH reset for explanation of MX23 handling
+	 */
+	ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MX23(this));
+	if (ret)
+		goto err_out;
+
+
 	/* Choose NAND mode. */
 	writel(BM_GPMI_CTRL1_GPMI_MODE, r->gpmi_regs + HW_GPMI_CTRL1_CLR);
 
diff --git a/drivers/net/wimax/i2400m/i2400m-usb.h b/drivers/net/wimax/i2400m/i2400m-usb.h
index 6650fde..9f1e947 100644
--- a/drivers/net/wimax/i2400m/i2400m-usb.h
+++ b/drivers/net/wimax/i2400m/i2400m-usb.h
@@ -152,6 +152,9 @@ enum {
 	/* Device IDs */
 	USB_DEVICE_ID_I6050 = 0x0186,
 	USB_DEVICE_ID_I6050_2 = 0x0188,
+	USB_DEVICE_ID_I6150 = 0x07d6,
+	USB_DEVICE_ID_I6150_2 = 0x07d7,
+	USB_DEVICE_ID_I6150_3 = 0x07d9,
 	USB_DEVICE_ID_I6250 = 0x0187,
 };
 
diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c
index 29b1e03..f0f16e0 100644
--- a/drivers/net/wimax/i2400m/usb.c
+++ b/drivers/net/wimax/i2400m/usb.c
@@ -510,6 +510,9 @@ int i2400mu_probe(struct usb_interface *iface,
 	switch (id->idProduct) {
 	case USB_DEVICE_ID_I6050:
 	case USB_DEVICE_ID_I6050_2:
+	case USB_DEVICE_ID_I6150:
+	case USB_DEVICE_ID_I6150_2:
+	case USB_DEVICE_ID_I6150_3:
 	case USB_DEVICE_ID_I6250:
 		i2400mu->i6050 = 1;
 		break;
@@ -759,6 +762,9 @@ static
 struct usb_device_id i2400mu_id_table[] = {
 	{ USB_DEVICE(0x8086, USB_DEVICE_ID_I6050) },
 	{ USB_DEVICE(0x8086, USB_DEVICE_ID_I6050_2) },
+	{ USB_DEVICE(0x8087, USB_DEVICE_ID_I6150) },
+	{ USB_DEVICE(0x8087, USB_DEVICE_ID_I6150_2) },
+	{ USB_DEVICE(0x8087, USB_DEVICE_ID_I6150_3) },
 	{ USB_DEVICE(0x8086, USB_DEVICE_ID_I6250) },
 	{ USB_DEVICE(0x8086, 0x0181) },
 	{ USB_DEVICE(0x8086, 0x1403) },
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 0e643b0..c7d1437 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -843,7 +843,7 @@ ath5k_txbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf)
 		return;
 	dma_unmap_single(ah->dev, bf->skbaddr, bf->skb->len,
 			DMA_TO_DEVICE);
-	dev_kfree_skb_any(bf->skb);
+	ieee80211_free_txskb(ah->hw, bf->skb);
 	bf->skb = NULL;
 	bf->skbaddr = 0;
 	bf->desc->ds_data = 0;
@@ -1570,7 +1570,7 @@ ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
 	return;
 
 drop_packet:
-	dev_kfree_skb_any(skb);
+	ieee80211_free_txskb(hw, skb);
 }
 
 static void
diff --git a/drivers/net/wireless/ath/ath5k/mac80211-ops.c b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
index 5c53299..5d1be4d 100644
--- a/drivers/net/wireless/ath/ath5k/mac80211-ops.c
+++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
@@ -59,7 +59,7 @@ ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	u16 qnum = skb_get_queue_mapping(skb);
 
 	if (WARN_ON(qnum >= ah->ah_capabilities.cap_queues.q_tx_num)) {
-		dev_kfree_skb_any(skb);
+		ieee80211_free_txskb(hw, skb);
 		return;
 	}
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
index 2b4b633..4e2a52c 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
@@ -533,98 +533,98 @@ static const u32 ar9300_2p2_baseband_core[][2] = {
 
 static const u32 ar9300Modes_high_power_tx_gain_table_2p2[][5] = {
 	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
-	{0x0000a2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352},
-	{0x0000a2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584},
-	{0x0000a2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800},
+	{0x0000a2dc, 0x0380c7fc, 0x0380c7fc, 0x03aaa352, 0x03aaa352},
+	{0x0000a2e0, 0x0000f800, 0x0000f800, 0x03ccc584, 0x03ccc584},
+	{0x0000a2e4, 0x03ff0000, 0x03ff0000, 0x03f0f800, 0x03f0f800},
 	{0x0000a2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
-	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
-	{0x0000a500, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
-	{0x0000a504, 0x06000003, 0x06000003, 0x04000002, 0x04000002},
-	{0x0000a508, 0x0a000020, 0x0a000020, 0x08000004, 0x08000004},
-	{0x0000a50c, 0x10000023, 0x10000023, 0x0b000200, 0x0b000200},
-	{0x0000a510, 0x16000220, 0x16000220, 0x0f000202, 0x0f000202},
-	{0x0000a514, 0x1c000223, 0x1c000223, 0x12000400, 0x12000400},
-	{0x0000a518, 0x21002220, 0x21002220, 0x16000402, 0x16000402},
-	{0x0000a51c, 0x27002223, 0x27002223, 0x19000404, 0x19000404},
-	{0x0000a520, 0x2b022220, 0x2b022220, 0x1c000603, 0x1c000603},
-	{0x0000a524, 0x2f022222, 0x2f022222, 0x21000a02, 0x21000a02},
-	{0x0000a528, 0x34022225, 0x34022225, 0x25000a04, 0x25000a04},
-	{0x0000a52c, 0x3a02222a, 0x3a02222a, 0x28000a20, 0x28000a20},
-	{0x0000a530, 0x3e02222c, 0x3e02222c, 0x2c000e20, 0x2c000e20},
-	{0x0000a534, 0x4202242a, 0x4202242a, 0x30000e22, 0x30000e22},
-	{0x0000a538, 0x4702244a, 0x4702244a, 0x34000e24, 0x34000e24},
-	{0x0000a53c, 0x4b02244c, 0x4b02244c, 0x38001640, 0x38001640},
-	{0x0000a540, 0x4e02246c, 0x4e02246c, 0x3c001660, 0x3c001660},
-	{0x0000a544, 0x52022470, 0x52022470, 0x3f001861, 0x3f001861},
-	{0x0000a548, 0x55022490, 0x55022490, 0x43001a81, 0x43001a81},
-	{0x0000a54c, 0x59022492, 0x59022492, 0x47001a83, 0x47001a83},
-	{0x0000a550, 0x5d022692, 0x5d022692, 0x4a001c84, 0x4a001c84},
-	{0x0000a554, 0x61022892, 0x61022892, 0x4e001ce3, 0x4e001ce3},
-	{0x0000a558, 0x65024890, 0x65024890, 0x52001ce5, 0x52001ce5},
-	{0x0000a55c, 0x69024892, 0x69024892, 0x56001ce9, 0x56001ce9},
-	{0x0000a560, 0x6e024c92, 0x6e024c92, 0x5a001ceb, 0x5a001ceb},
-	{0x0000a564, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
-	{0x0000a568, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
-	{0x0000a56c, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
-	{0x0000a570, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
-	{0x0000a574, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
-	{0x0000a578, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
-	{0x0000a57c, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
-	{0x0000a580, 0x00800000, 0x00800000, 0x00800000, 0x00800000},
-	{0x0000a584, 0x06800003, 0x06800003, 0x04800002, 0x04800002},
-	{0x0000a588, 0x0a800020, 0x0a800020, 0x08800004, 0x08800004},
-	{0x0000a58c, 0x10800023, 0x10800023, 0x0b800200, 0x0b800200},
-	{0x0000a590, 0x16800220, 0x16800220, 0x0f800202, 0x0f800202},
-	{0x0000a594, 0x1c800223, 0x1c800223, 0x12800400, 0x12800400},
-	{0x0000a598, 0x21802220, 0x21802220, 0x16800402, 0x16800402},
-	{0x0000a59c, 0x27802223, 0x27802223, 0x19800404, 0x19800404},
-	{0x0000a5a0, 0x2b822220, 0x2b822220, 0x1c800603, 0x1c800603},
-	{0x0000a5a4, 0x2f822222, 0x2f822222, 0x21800a02, 0x21800a02},
-	{0x0000a5a8, 0x34822225, 0x34822225, 0x25800a04, 0x25800a04},
-	{0x0000a5ac, 0x3a82222a, 0x3a82222a, 0x28800a20, 0x28800a20},
-	{0x0000a5b0, 0x3e82222c, 0x3e82222c, 0x2c800e20, 0x2c800e20},
-	{0x0000a5b4, 0x4282242a, 0x4282242a, 0x30800e22, 0x30800e22},
-	{0x0000a5b8, 0x4782244a, 0x4782244a, 0x34800e24, 0x34800e24},
-	{0x0000a5bc, 0x4b82244c, 0x4b82244c, 0x38801640, 0x38801640},
-	{0x0000a5c0, 0x4e82246c, 0x4e82246c, 0x3c801660, 0x3c801660},
-	{0x0000a5c4, 0x52822470, 0x52822470, 0x3f801861, 0x3f801861},
-	{0x0000a5c8, 0x55822490, 0x55822490, 0x43801a81, 0x43801a81},
-	{0x0000a5cc, 0x59822492, 0x59822492, 0x47801a83, 0x47801a83},
-	{0x0000a5d0, 0x5d822692, 0x5d822692, 0x4a801c84, 0x4a801c84},
-	{0x0000a5d4, 0x61822892, 0x61822892, 0x4e801ce3, 0x4e801ce3},
-	{0x0000a5d8, 0x65824890, 0x65824890, 0x52801ce5, 0x52801ce5},
-	{0x0000a5dc, 0x69824892, 0x69824892, 0x56801ce9, 0x56801ce9},
-	{0x0000a5e0, 0x6e824c92, 0x6e824c92, 0x5a801ceb, 0x5a801ceb},
-	{0x0000a5e4, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
-	{0x0000a5e8, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
-	{0x0000a5ec, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
-	{0x0000a5f0, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
-	{0x0000a5f4, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
-	{0x0000a5f8, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
-	{0x0000a5fc, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
+	{0x0000a410, 0x000050d8, 0x000050d8, 0x000050d9, 0x000050d9},
+	{0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
+	{0x0000a504, 0x04002222, 0x04002222, 0x04000002, 0x04000002},
+	{0x0000a508, 0x09002421, 0x09002421, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x0d002621, 0x0d002621, 0x0b000200, 0x0b000200},
+	{0x0000a510, 0x13004620, 0x13004620, 0x0f000202, 0x0f000202},
+	{0x0000a514, 0x19004a20, 0x19004a20, 0x11000400, 0x11000400},
+	{0x0000a518, 0x1d004e20, 0x1d004e20, 0x15000402, 0x15000402},
+	{0x0000a51c, 0x21005420, 0x21005420, 0x19000404, 0x19000404},
+	{0x0000a520, 0x26005e20, 0x26005e20, 0x1b000603, 0x1b000603},
+	{0x0000a524, 0x2b005e40, 0x2b005e40, 0x1f000a02, 0x1f000a02},
+	{0x0000a528, 0x2f005e42, 0x2f005e42, 0x23000a04, 0x23000a04},
+	{0x0000a52c, 0x33005e44, 0x33005e44, 0x26000a20, 0x26000a20},
+	{0x0000a530, 0x38005e65, 0x38005e65, 0x2a000e20, 0x2a000e20},
+	{0x0000a534, 0x3c005e69, 0x3c005e69, 0x2e000e22, 0x2e000e22},
+	{0x0000a538, 0x40005e6b, 0x40005e6b, 0x31000e24, 0x31000e24},
+	{0x0000a53c, 0x44005e6d, 0x44005e6d, 0x34001640, 0x34001640},
+	{0x0000a540, 0x49005e72, 0x49005e72, 0x38001660, 0x38001660},
+	{0x0000a544, 0x4e005eb2, 0x4e005eb2, 0x3b001861, 0x3b001861},
+	{0x0000a548, 0x53005f12, 0x53005f12, 0x3e001a81, 0x3e001a81},
+	{0x0000a54c, 0x59025eb2, 0x59025eb2, 0x42001a83, 0x42001a83},
+	{0x0000a550, 0x5e025f12, 0x5e025f12, 0x44001c84, 0x44001c84},
+	{0x0000a554, 0x61027f12, 0x61027f12, 0x48001ce3, 0x48001ce3},
+	{0x0000a558, 0x6702bf12, 0x6702bf12, 0x4c001ce5, 0x4c001ce5},
+	{0x0000a55c, 0x6b02bf14, 0x6b02bf14, 0x50001ce9, 0x50001ce9},
+	{0x0000a560, 0x6f02bf16, 0x6f02bf16, 0x54001ceb, 0x54001ceb},
+	{0x0000a564, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
+	{0x0000a568, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
+	{0x0000a56c, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
+	{0x0000a570, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
+	{0x0000a574, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
+	{0x0000a578, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
+	{0x0000a57c, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
+	{0x0000a580, 0x00802220, 0x00802220, 0x00800000, 0x00800000},
+	{0x0000a584, 0x04802222, 0x04802222, 0x04800002, 0x04800002},
+	{0x0000a588, 0x09802421, 0x09802421, 0x08800004, 0x08800004},
+	{0x0000a58c, 0x0d802621, 0x0d802621, 0x0b800200, 0x0b800200},
+	{0x0000a590, 0x13804620, 0x13804620, 0x0f800202, 0x0f800202},
+	{0x0000a594, 0x19804a20, 0x19804a20, 0x11800400, 0x11800400},
+	{0x0000a598, 0x1d804e20, 0x1d804e20, 0x15800402, 0x15800402},
+	{0x0000a59c, 0x21805420, 0x21805420, 0x19800404, 0x19800404},
+	{0x0000a5a0, 0x26805e20, 0x26805e20, 0x1b800603, 0x1b800603},
+	{0x0000a5a4, 0x2b805e40, 0x2b805e40, 0x1f800a02, 0x1f800a02},
+	{0x0000a5a8, 0x2f805e42, 0x2f805e42, 0x23800a04, 0x23800a04},
+	{0x0000a5ac, 0x33805e44, 0x33805e44, 0x26800a20, 0x26800a20},
+	{0x0000a5b0, 0x38805e65, 0x38805e65, 0x2a800e20, 0x2a800e20},
+	{0x0000a5b4, 0x3c805e69, 0x3c805e69, 0x2e800e22, 0x2e800e22},
+	{0x0000a5b8, 0x40805e6b, 0x40805e6b, 0x31800e24, 0x31800e24},
+	{0x0000a5bc, 0x44805e6d, 0x44805e6d, 0x34801640, 0x34801640},
+	{0x0000a5c0, 0x49805e72, 0x49805e72, 0x38801660, 0x38801660},
+	{0x0000a5c4, 0x4e805eb2, 0x4e805eb2, 0x3b801861, 0x3b801861},
+	{0x0000a5c8, 0x53805f12, 0x53805f12, 0x3e801a81, 0x3e801a81},
+	{0x0000a5cc, 0x59825eb2, 0x59825eb2, 0x42801a83, 0x42801a83},
+	{0x0000a5d0, 0x5e825f12, 0x5e825f12, 0x44801c84, 0x44801c84},
+	{0x0000a5d4, 0x61827f12, 0x61827f12, 0x48801ce3, 0x48801ce3},
+	{0x0000a5d8, 0x6782bf12, 0x6782bf12, 0x4c801ce5, 0x4c801ce5},
+	{0x0000a5dc, 0x6b82bf14, 0x6b82bf14, 0x50801ce9, 0x50801ce9},
+	{0x0000a5e0, 0x6f82bf16, 0x6f82bf16, 0x54801ceb, 0x54801ceb},
+	{0x0000a5e4, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
+	{0x0000a5e8, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
+	{0x0000a5ec, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
+	{0x0000a5f0, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
+	{0x0000a5f4, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
+	{0x0000a5f8, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
+	{0x0000a5fc, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
 	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
-	{0x0000a610, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
-	{0x0000a614, 0x02004000, 0x02004000, 0x01404000, 0x01404000},
-	{0x0000a618, 0x02004801, 0x02004801, 0x01404501, 0x01404501},
-	{0x0000a61c, 0x02808a02, 0x02808a02, 0x02008501, 0x02008501},
-	{0x0000a620, 0x0380ce03, 0x0380ce03, 0x0280ca03, 0x0280ca03},
-	{0x0000a624, 0x04411104, 0x04411104, 0x03010c04, 0x03010c04},
-	{0x0000a628, 0x04411104, 0x04411104, 0x04014c04, 0x04014c04},
-	{0x0000a62c, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
-	{0x0000a630, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
-	{0x0000a634, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
-	{0x0000a638, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
-	{0x0000a63c, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
-	{0x0000b2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352},
-	{0x0000b2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584},
-	{0x0000b2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800},
+	{0x0000a610, 0x00804000, 0x00804000, 0x00000000, 0x00000000},
+	{0x0000a614, 0x00804201, 0x00804201, 0x01404000, 0x01404000},
+	{0x0000a618, 0x0280c802, 0x0280c802, 0x01404501, 0x01404501},
+	{0x0000a61c, 0x0280ca03, 0x0280ca03, 0x02008501, 0x02008501},
+	{0x0000a620, 0x04c15104, 0x04c15104, 0x0280ca03, 0x0280ca03},
+	{0x0000a624, 0x04c15305, 0x04c15305, 0x03010c04, 0x03010c04},
+	{0x0000a628, 0x04c15305, 0x04c15305, 0x04014c04, 0x04014c04},
+	{0x0000a62c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a630, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a634, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a638, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a63c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000b2dc, 0x0380c7fc, 0x0380c7fc, 0x03aaa352, 0x03aaa352},
+	{0x0000b2e0, 0x0000f800, 0x0000f800, 0x03ccc584, 0x03ccc584},
+	{0x0000b2e4, 0x03ff0000, 0x03ff0000, 0x03f0f800, 0x03f0f800},
 	{0x0000b2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
-	{0x0000c2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352},
-	{0x0000c2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584},
-	{0x0000c2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800},
+	{0x0000c2dc, 0x0380c7fc, 0x0380c7fc, 0x03aaa352, 0x03aaa352},
+	{0x0000c2e0, 0x0000f800, 0x0000f800, 0x03ccc584, 0x03ccc584},
+	{0x0000c2e4, 0x03ff0000, 0x03ff0000, 0x03f0f800, 0x03f0f800},
 	{0x0000c2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
 	{0x00016044, 0x012492d4, 0x012492d4, 0x012492d4, 0x012492d4},
 	{0x00016048, 0x66480001, 0x66480001, 0x66480001, 0x66480001},
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index bb223fe..582ebc4 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -69,13 +69,13 @@
 #define AR9300_BASE_ADDR 0x3ff
 #define AR9300_BASE_ADDR_512 0x1ff
 
-#define AR9300_OTP_BASE			0x14000
-#define AR9300_OTP_STATUS		0x15f18
+#define AR9300_OTP_BASE			(AR_SREV_9340(ah) ? 0x30000 : 0x14000)
+#define AR9300_OTP_STATUS		(AR_SREV_9340(ah) ? 0x30018 : 0x15f18)
 #define AR9300_OTP_STATUS_TYPE		0x7
 #define AR9300_OTP_STATUS_VALID		0x4
 #define AR9300_OTP_STATUS_ACCESS_BUSY	0x2
 #define AR9300_OTP_STATUS_SM_BUSY	0x1
-#define AR9300_OTP_READ_DATA		0x15f1c
+#define AR9300_OTP_READ_DATA		(AR_SREV_9340(ah) ? 0x3001c : 0x15f1c)
 
 enum targetPowerHTRates {
 	HT_TARGET_RATE_0_8_16,
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index e5cceb0..bbd249d 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -69,6 +69,7 @@ s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan)
 
 	if (chan && chan->noisefloor) {
 		s8 delta = chan->noisefloor -
+			   ATH9K_NF_CAL_NOISE_THRESH -
 			   ath9k_hw_get_default_nf(ah, chan);
 		if (delta > 0)
 			noise += delta;
diff --git a/drivers/net/wireless/ath/ath9k/calib.h b/drivers/net/wireless/ath/ath9k/calib.h
index 3b33996d..1f2e01a 100644
--- a/drivers/net/wireless/ath/ath9k/calib.h
+++ b/drivers/net/wireless/ath/ath9k/calib.h
@@ -21,6 +21,9 @@
 
 #define AR_PHY_CCA_FILTERWINDOW_LENGTH          5
 
+/* Internal noise floor can vary by about 6db depending on the frequency */
+#define ATH9K_NF_CAL_NOISE_THRESH		6
+
 #define NUM_NF_READINGS       6
 #define ATH9K_NF_CAL_HIST_MAX 5
 
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index 67c13af..05cb5f6 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -7,6 +7,7 @@
 #include <linux/hw_random.h>
 #include <linux/bcma/bcma.h>
 #include <linux/ssb/ssb.h>
+#include <linux/completion.h>
 #include <net/mac80211.h>
 
 #include "debugfs.h"
@@ -718,6 +719,10 @@ enum b43_firmware_file_type {
 struct b43_request_fw_context {
 	/* The device we are requesting the fw for. */
 	struct b43_wldev *dev;
+	/* a completion event structure needed if this call is asynchronous */
+	struct completion fw_load_complete;
+	/* a pointer to the firmware object */
+	const struct firmware *blob;
 	/* The type of firmware to request. */
 	enum b43_firmware_file_type req_type;
 	/* Error messages for each firmware type. */
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 4e465c5..14fd2ca 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2088,11 +2088,18 @@ static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
 		b43warn(wl, text);
 }
 
+static void b43_fw_cb(const struct firmware *firmware, void *context)
+{
+	struct b43_request_fw_context *ctx = context;
+
+	ctx->blob = firmware;
+	complete(&ctx->fw_load_complete);
+}
+
 int b43_do_request_fw(struct b43_request_fw_context *ctx,
 		      const char *name,
-		      struct b43_firmware_file *fw)
+		      struct b43_firmware_file *fw, bool async)
 {
-	const struct firmware *blob;
 	struct b43_fw_header *hdr;
 	u32 size;
 	int err;
@@ -2131,11 +2138,31 @@ int b43_do_request_fw(struct b43_request_fw_context *ctx,
 		B43_WARN_ON(1);
 		return -ENOSYS;
 	}
-	err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev);
+	if (async) {
+		/* do this part asynchronously */
+		init_completion(&ctx->fw_load_complete);
+		err = request_firmware_nowait(THIS_MODULE, 1, ctx->fwname,
+					      ctx->dev->dev->dev, GFP_KERNEL,
+					      ctx, b43_fw_cb);
+		if (err < 0) {
+			pr_err("Unable to load firmware\n");
+			return err;
+		}
+		/* stall here until fw ready */
+		wait_for_completion(&ctx->fw_load_complete);
+		if (ctx->blob)
+			goto fw_ready;
+	/* On some ARM systems, the async request will fail, but the next sync
+	 * request works. For this reason, we dall through here
+	 */
+	}
+	err = request_firmware(&ctx->blob, ctx->fwname,
+			       ctx->dev->dev->dev);
 	if (err == -ENOENT) {
 		snprintf(ctx->errors[ctx->req_type],
 			 sizeof(ctx->errors[ctx->req_type]),
-			 "Firmware file \"%s\" not found\n", ctx->fwname);
+			 "Firmware file \"%s\" not found\n",
+			 ctx->fwname);
 		return err;
 	} else if (err) {
 		snprintf(ctx->errors[ctx->req_type],
@@ -2144,14 +2171,15 @@ int b43_do_request_fw(struct b43_request_fw_context *ctx,
 			 ctx->fwname, err);
 		return err;
 	}
-	if (blob->size < sizeof(struct b43_fw_header))
+fw_ready:
+	if (ctx->blob->size < sizeof(struct b43_fw_header))
 		goto err_format;
-	hdr = (struct b43_fw_header *)(blob->data);
+	hdr = (struct b43_fw_header *)(ctx->blob->data);
 	switch (hdr->type) {
 	case B43_FW_TYPE_UCODE:
 	case B43_FW_TYPE_PCM:
 		size = be32_to_cpu(hdr->size);
-		if (size != blob->size - sizeof(struct b43_fw_header))
+		if (size != ctx->blob->size - sizeof(struct b43_fw_header))
 			goto err_format;
 		/* fallthrough */
 	case B43_FW_TYPE_IV:
@@ -2162,7 +2190,7 @@ int b43_do_request_fw(struct b43_request_fw_context *ctx,
 		goto err_format;
 	}
 
-	fw->data = blob;
+	fw->data = ctx->blob;
 	fw->filename = name;
 	fw->type = ctx->req_type;
 
@@ -2172,7 +2200,7 @@ err_format:
 	snprintf(ctx->errors[ctx->req_type],
 		 sizeof(ctx->errors[ctx->req_type]),
 		 "Firmware file \"%s\" format error.\n", ctx->fwname);
-	release_firmware(blob);
+	release_firmware(ctx->blob);
 
 	return -EPROTO;
 }
@@ -2223,7 +2251,7 @@ static int b43_try_request_fw(struct b43_request_fw_context *ctx)
 			goto err_no_ucode;
 		}
 	}
-	err = b43_do_request_fw(ctx, filename, &fw->ucode);
+	err = b43_do_request_fw(ctx, filename, &fw->ucode, true);
 	if (err)
 		goto err_load;
 
@@ -2235,7 +2263,7 @@ static int b43_try_request_fw(struct b43_request_fw_context *ctx)
 	else
 		goto err_no_pcm;
 	fw->pcm_request_failed = false;
-	err = b43_do_request_fw(ctx, filename, &fw->pcm);
+	err = b43_do_request_fw(ctx, filename, &fw->pcm, false);
 	if (err == -ENOENT) {
 		/* We did not find a PCM file? Not fatal, but
 		 * core rev <= 10 must do without hwcrypto then. */
@@ -2296,7 +2324,7 @@ static int b43_try_request_fw(struct b43_request_fw_context *ctx)
 	default:
 		goto err_no_initvals;
 	}
-	err = b43_do_request_fw(ctx, filename, &fw->initvals);
+	err = b43_do_request_fw(ctx, filename, &fw->initvals, false);
 	if (err)
 		goto err_load;
 
@@ -2355,7 +2383,7 @@ static int b43_try_request_fw(struct b43_request_fw_context *ctx)
 	default:
 		goto err_no_initvals;
 	}
-	err = b43_do_request_fw(ctx, filename, &fw->initvals_band);
+	err = b43_do_request_fw(ctx, filename, &fw->initvals_band, false);
 	if (err)
 		goto err_load;
 
diff --git a/drivers/net/wireless/b43/main.h b/drivers/net/wireless/b43/main.h
index 8c684cd..abac25e 100644
--- a/drivers/net/wireless/b43/main.h
+++ b/drivers/net/wireless/b43/main.h
@@ -137,9 +137,8 @@ void b43_mac_phy_clock_set(struct b43_wldev *dev, bool on);
 
 
 struct b43_request_fw_context;
-int b43_do_request_fw(struct b43_request_fw_context *ctx,
-		      const char *name,
-		      struct b43_firmware_file *fw);
+int b43_do_request_fw(struct b43_request_fw_context *ctx, const char *name,
+		      struct b43_firmware_file *fw, bool async);
 void b43_do_release_fw(struct b43_firmware_file *fw);
 
 #endif /* B43_MAIN_H_ */
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index d7b11de..4fb146a 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -53,7 +53,6 @@ int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
  */
 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter)
 {
-	bool cancel_flag = false;
 	int status;
 	struct cmd_ctrl_node *cmd_queued;
 
@@ -70,14 +69,11 @@ int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter)
 	queue_work(adapter->workqueue, &adapter->main_work);
 
 	/* Wait for completion */
-	wait_event_interruptible(adapter->cmd_wait_q.wait,
-				 *(cmd_queued->condition));
-	if (!*(cmd_queued->condition))
-		cancel_flag = true;
-
-	if (cancel_flag) {
-		mwifiex_cancel_pending_ioctl(adapter);
-		dev_dbg(adapter->dev, "cmd cancel\n");
+	status = wait_event_interruptible(adapter->cmd_wait_q.wait,
+					  *(cmd_queued->condition));
+	if (status) {
+		dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status);
+		return status;
 	}
 
 	status = adapter->cmd_wait_q.status;
@@ -436,8 +432,11 @@ int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
 		return false;
 	}
 
-	wait_event_interruptible(adapter->hs_activate_wait_q,
-				 adapter->hs_activate_wait_q_woken);
+	if (wait_event_interruptible(adapter->hs_activate_wait_q,
+				     adapter->hs_activate_wait_q_woken)) {
+		dev_err(adapter->dev, "hs_activate_wait_q terminated\n");
+		return false;
+	}
 
 	return true;
 }
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index e2a34b4..1afbe5e 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1506,6 +1506,16 @@ static struct dmi_system_id __initdata samsung_dmi_table[] = {
 		},
 	 .driver_data = &samsung_broken_acpi_video,
 	},
+	{
+	 .callback = samsung_dmi_matched,
+	 .ident = "N250P",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "N250P"),
+		DMI_MATCH(DMI_BOARD_NAME, "N250P"),
+		},
+	 .driver_data = &samsung_broken_acpi_video,
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(dmi, samsung_dmi_table);
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index ff810e7..97bb31d 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -330,7 +330,7 @@ static int wm831x_buckv_set_voltage(struct regulator_dev *rdev,
 	if (vsel > dcdc->dvs_vsel) {
 		ret = wm831x_set_bits(wm831x, dvs_reg,
 				      WM831X_DC1_DVS_VSEL_MASK,
-				      dcdc->dvs_vsel);
+				      vsel);
 		if (ret == 0)
 			dcdc->dvs_vsel = vsel;
 		else
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index 07a4fd2..daa6b90 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -234,7 +234,7 @@ static int pgid_cmp(struct pgid *p1, struct pgid *p2)
  * Determine pathgroup state from PGID data.
  */
 static void pgid_analyze(struct ccw_device *cdev, struct pgid **p,
-			 int *mismatch, int *reserved, u8 *reset)
+			 int *mismatch, u8 *reserved, u8 *reset)
 {
 	struct pgid *pgid = &cdev->private->pgid[0];
 	struct pgid *first = NULL;
@@ -248,7 +248,7 @@ static void pgid_analyze(struct ccw_device *cdev, struct pgid **p,
 		if ((cdev->private->pgid_valid_mask & lpm) == 0)
 			continue;
 		if (pgid->inf.ps.state2 == SNID_STATE2_RESVD_ELSE)
-			*reserved = 1;
+			*reserved |= lpm;
 		if (pgid_is_reset(pgid)) {
 			*reset |= lpm;
 			continue;
@@ -316,14 +316,14 @@ static void snid_done(struct ccw_device *cdev, int rc)
 	struct subchannel *sch = to_subchannel(cdev->dev.parent);
 	struct pgid *pgid;
 	int mismatch = 0;
-	int reserved = 0;
+	u8 reserved = 0;
 	u8 reset = 0;
 	u8 donepm;
 
 	if (rc)
 		goto out;
 	pgid_analyze(cdev, &pgid, &mismatch, &reserved, &reset);
-	if (reserved)
+	if (reserved == cdev->private->pgid_valid_mask)
 		rc = -EUSERS;
 	else if (mismatch)
 		rc = -EOPNOTSUPP;
@@ -336,7 +336,7 @@ static void snid_done(struct ccw_device *cdev, int rc)
 	}
 out:
 	CIO_MSG_EVENT(2, "snid: device 0.%x.%04x: rc=%d pvm=%02x vpm=%02x "
-		      "todo=%02x mism=%d rsvd=%d reset=%02x\n", id->ssid,
+		      "todo=%02x mism=%d rsvd=%02x reset=%02x\n", id->ssid,
 		      id->devno, rc, cdev->private->pgid_valid_mask, sch->vpm,
 		      cdev->private->pgid_todo_mask, mismatch, reserved, reset);
 	switch (rc) {
diff --git a/drivers/scsi/mvsas/mv_94xx.h b/drivers/scsi/mvsas/mv_94xx.h
index 8f7eb4f..487aa6f 100644
--- a/drivers/scsi/mvsas/mv_94xx.h
+++ b/drivers/scsi/mvsas/mv_94xx.h
@@ -258,21 +258,11 @@ enum sas_sata_phy_regs {
 #define SPI_ADDR_VLD_94XX         	(1U << 1)
 #define SPI_CTRL_SpiStart_94XX     	(1U << 0)
 
-#define mv_ffc(x)   ffz(x)
-
 static inline int
 mv_ffc64(u64 v)
 {
-	int i;
-	i = mv_ffc((u32)v);
-	if (i >= 0)
-		return i;
-	i = mv_ffc((u32)(v>>32));
-
-	if (i != 0)
-		return 32 + i;
-
-	return -1;
+	u64 x = ~v;
+	return x ? __ffs64(x) : -1;
 }
 
 #define r_reg_set_enable(i) \
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 3006ec9..dbb8edf 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1629,7 +1629,7 @@ int mvs_abort_task(struct sas_task *task)
 			mv_dprintk("mvs_abort_task() mvi=%p task=%p "
 				   "slot=%p slot_idx=x%x\n",
 				   mvi, task, slot, slot_idx);
-			mvs_tmf_timedout((unsigned long)task);
+			task->task_state_flags |= SAS_TASK_STATE_ABORTED;
 			mvs_slot_task_free(mvi, task, slot, slot_idx);
 			rc = TMF_RESP_FUNC_COMPLETE;
 			goto out;
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index c04a4f5..da24955 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -69,7 +69,7 @@ extern struct kmem_cache *mvs_task_list_cache;
 #define DEV_IS_EXPANDER(type)	\
 	((type == EDGE_DEV) || (type == FANOUT_DEV))
 
-#define bit(n) ((u32)1 << n)
+#define bit(n) ((u64)1 << n)
 
 #define for_each_phy(__lseq_mask, __mc, __lseq)			\
 	for ((__mc) = (__lseq_mask), (__lseq) = 0;		\
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 7db8033..da1315e 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3735,9 +3735,9 @@ qla2x00_do_dpc(void *data)
 			    "ISP abort end.\n");
 		}
 
-		if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
+		if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
+		    &base_vha->dpc_flags)) {
 			qla2x00_update_fcports(base_vha);
-			clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
 		}
 
 		if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) {
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 08d48a3..72ca515 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -246,11 +246,11 @@ show_shost_active_mode(struct device *dev,
 
 static DEVICE_ATTR(active_mode, S_IRUGO | S_IWUSR, show_shost_active_mode, NULL);
 
-static int check_reset_type(char *str)
+static int check_reset_type(const char *str)
 {
-	if (strncmp(str, "adapter", 10) == 0)
+	if (sysfs_streq(str, "adapter"))
 		return SCSI_ADAPTER_RESET;
-	else if (strncmp(str, "firmware", 10) == 0)
+	else if (sysfs_streq(str, "firmware"))
 		return SCSI_FIRMWARE_RESET;
 	else
 		return 0;
@@ -263,12 +263,9 @@ store_host_reset(struct device *dev, struct device_attribute *attr,
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct scsi_host_template *sht = shost->hostt;
 	int ret = -EINVAL;
-	char str[10];
 	int type;
 
-	sscanf(buf, "%s", str);
-	type = check_reset_type(str);
-
+	type = check_reset_type(buf);
 	if (!type)
 		goto exit_store_host_reset;
 
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 12c691d..f11cfc8 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -424,6 +424,7 @@ config COMEDI_ADQ12B
 
 config COMEDI_NI_AT_A2150
 	tristate "NI AT-A2150 ISA card support"
+	select COMEDI_FC
 	depends on COMEDI_NI_COMMON
 	depends on VIRT_TO_BUS
 	default N
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index b719460..b67c107 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -138,6 +138,9 @@ static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd,
 	if (cmd == COMEDI_DEVCONFIG) {
 		rc = do_devconfig_ioctl(dev,
 					(struct comedi_devconfig __user *)arg);
+		if (rc == 0)
+			/* Evade comedi_auto_unconfig(). */
+			dev_file_info->hardware_device = NULL;
 		goto done;
 	}
 
@@ -2207,6 +2210,7 @@ int comedi_alloc_board_minor(struct device *hardware_device)
 		kfree(info);
 		return -ENOMEM;
 	}
+	info->hardware_device = hardware_device;
 	comedi_device_init(info->device);
 	spin_lock_irqsave(&comedi_file_info_table_lock, flags);
 	for (i = 0; i < COMEDI_NUM_BOARD_MINORS; ++i) {
@@ -2295,6 +2299,23 @@ void comedi_free_board_minor(unsigned minor)
 	}
 }
 
+int comedi_find_board_minor(struct device *hardware_device)
+{
+	int minor;
+	struct comedi_device_file_info *info;
+
+	for (minor = 0; minor < COMEDI_NUM_BOARD_MINORS; minor++) {
+		spin_lock(&comedi_file_info_table_lock);
+		info = comedi_file_info_table[minor];
+		if (info && info->hardware_device == hardware_device) {
+			spin_unlock(&comedi_file_info_table_lock);
+			return minor;
+		}
+		spin_unlock(&comedi_file_info_table_lock);
+	}
+	return -ENODEV;
+}
+
 int comedi_alloc_subdevice_minor(struct comedi_device *dev,
 				 struct comedi_subdevice *s)
 {
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index 7a0d4bc..00d3c65 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -234,6 +234,7 @@ struct comedi_device_file_info {
 	struct comedi_device *device;
 	struct comedi_subdevice *read_subdevice;
 	struct comedi_subdevice *write_subdevice;
+	struct device *hardware_device;
 };
 
 #ifdef CONFIG_COMEDI_DEBUG
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index bf185e2..0fc1b99 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -822,25 +822,14 @@ static int comedi_auto_config(struct device *hardware_device,
 	int minor;
 	struct comedi_device_file_info *dev_file_info;
 	int retval;
-	unsigned *private_data = NULL;
 
-	if (!comedi_autoconfig) {
-		dev_set_drvdata(hardware_device, NULL);
+	if (!comedi_autoconfig)
 		return 0;
-	}
 
 	minor = comedi_alloc_board_minor(hardware_device);
 	if (minor < 0)
 		return minor;
 
-	private_data = kmalloc(sizeof(unsigned), GFP_KERNEL);
-	if (private_data == NULL) {
-		retval = -ENOMEM;
-		goto cleanup;
-	}
-	*private_data = minor;
-	dev_set_drvdata(hardware_device, private_data);
-
 	dev_file_info = comedi_get_device_file_info(minor);
 
 	memset(&it, 0, sizeof(it));
@@ -853,25 +842,22 @@ static int comedi_auto_config(struct device *hardware_device,
 	retval = comedi_device_attach(dev_file_info->device, &it);
 	mutex_unlock(&dev_file_info->device->mutex);
 
-cleanup:
-	if (retval < 0) {
-		kfree(private_data);
+	if (retval < 0)
 		comedi_free_board_minor(minor);
-	}
 	return retval;
 }
 
 static void comedi_auto_unconfig(struct device *hardware_device)
 {
-	unsigned *minor = (unsigned *)dev_get_drvdata(hardware_device);
-	if (minor == NULL)
-		return;
-
-	BUG_ON(*minor >= COMEDI_NUM_BOARD_MINORS);
+	int minor;
 
-	comedi_free_board_minor(*minor);
-	dev_set_drvdata(hardware_device, NULL);
-	kfree(minor);
+	if (hardware_device == NULL)
+		return;
+	minor = comedi_find_board_minor(hardware_device);
+	if (minor < 0)
+		return;
+	BUG_ON(minor >= COMEDI_NUM_BOARD_MINORS);
+	comedi_free_board_minor(minor);
 }
 
 int comedi_pci_auto_config(struct pci_dev *pcidev, const char *board_name)
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
index a804742..2567f9a 100644
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ b/drivers/staging/comedi/drivers/comedi_test.c
@@ -461,7 +461,7 @@ static int waveform_ai_cancel(struct comedi_device *dev,
 			      struct comedi_subdevice *s)
 {
 	devpriv->timer_running = 0;
-	del_timer(&devpriv->timer);
+	del_timer_sync(&devpriv->timer);
 	return 0;
 }
 
diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c
index 27baefa..59c1f88 100644
--- a/drivers/staging/comedi/drivers/ni_pcimio.c
+++ b/drivers/staging/comedi/drivers/ni_pcimio.c
@@ -1023,7 +1023,7 @@ static const struct ni_board_struct ni_boards[] = {
 	 .ao_range_table = &range_ni_M_625x_ao,
 	 .reg_type = ni_reg_625x,
 	 .ao_unipolar = 0,
-	 .ao_speed = 357,
+	 .ao_speed = 350,
 	 .num_p0_dio_channels = 8,
 	 .caldac = {caldac_none},
 	 .has_8255 = 0,
@@ -1042,7 +1042,7 @@ static const struct ni_board_struct ni_boards[] = {
 	 .ao_range_table = &range_ni_M_625x_ao,
 	 .reg_type = ni_reg_625x,
 	 .ao_unipolar = 0,
-	 .ao_speed = 357,
+	 .ao_speed = 350,
 	 .num_p0_dio_channels = 8,
 	 .caldac = {caldac_none},
 	 .has_8255 = 0,
@@ -1061,7 +1061,7 @@ static const struct ni_board_struct ni_boards[] = {
 	 .ao_range_table = &range_ni_M_625x_ao,
 	 .reg_type = ni_reg_625x,
 	 .ao_unipolar = 0,
-	 .ao_speed = 357,
+	 .ao_speed = 350,
 	 .num_p0_dio_channels = 8,
 	 .caldac = {caldac_none},
 	 .has_8255 = 0,
@@ -1097,7 +1097,7 @@ static const struct ni_board_struct ni_boards[] = {
 	 .ao_range_table = &range_ni_M_625x_ao,
 	 .reg_type = ni_reg_625x,
 	 .ao_unipolar = 0,
-	 .ao_speed = 357,
+	 .ao_speed = 350,
 	 .num_p0_dio_channels = 32,
 	 .caldac = {caldac_none},
 	 .has_8255 = 0,
@@ -1116,7 +1116,7 @@ static const struct ni_board_struct ni_boards[] = {
 	 .ao_range_table = &range_ni_M_625x_ao,
 	 .reg_type = ni_reg_625x,
 	 .ao_unipolar = 0,
-	 .ao_speed = 357,
+	 .ao_speed = 350,
 	 .num_p0_dio_channels = 32,
 	 .caldac = {caldac_none},
 	 .has_8255 = 0,
@@ -1152,7 +1152,7 @@ static const struct ni_board_struct ni_boards[] = {
 	 .ao_range_table = &range_ni_M_628x_ao,
 	 .reg_type = ni_reg_628x,
 	 .ao_unipolar = 1,
-	 .ao_speed = 357,
+	 .ao_speed = 350,
 	 .num_p0_dio_channels = 8,
 	 .caldac = {caldac_none},
 	 .has_8255 = 0,
@@ -1171,7 +1171,7 @@ static const struct ni_board_struct ni_boards[] = {
 	 .ao_range_table = &range_ni_M_628x_ao,
 	 .reg_type = ni_reg_628x,
 	 .ao_unipolar = 1,
-	 .ao_speed = 357,
+	 .ao_speed = 350,
 	 .num_p0_dio_channels = 8,
 	 .caldac = {caldac_none},
 	 .has_8255 = 0,
@@ -1207,7 +1207,7 @@ static const struct ni_board_struct ni_boards[] = {
 	 .ao_range_table = &range_ni_M_628x_ao,
 	 .reg_type = ni_reg_628x,
 	 .ao_unipolar = 1,
-	 .ao_speed = 357,
+	 .ao_speed = 350,
 	 .num_p0_dio_channels = 32,
 	 .caldac = {caldac_none},
 	 .has_8255 = 0,
diff --git a/drivers/staging/comedi/internal.h b/drivers/staging/comedi/internal.h
index 434ce34..4208fb4 100644
--- a/drivers/staging/comedi/internal.h
+++ b/drivers/staging/comedi/internal.h
@@ -7,6 +7,7 @@ int insn_inval(struct comedi_device *dev, struct comedi_subdevice *s,
 	       struct comedi_insn *insn, unsigned int *data);
 int comedi_alloc_board_minor(struct device *hardware_device);
 void comedi_free_board_minor(unsigned minor);
+int comedi_find_board_minor(struct device *hardware_device);
 void comedi_reset_async_buf(struct comedi_async *async);
 int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
 		     unsigned long new_size);
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index 2c80745..7b3ae00 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -66,6 +66,8 @@ static struct usb_device_id rtl871x_usb_id_tbl[] = {
 	{USB_DEVICE(0x0B05, 0x1791)}, /* 11n mode disable */
 	/* Belkin */
 	{USB_DEVICE(0x050D, 0x945A)},
+	/* ISY IWL - Belkin clone */
+	{USB_DEVICE(0x050D, 0x11F1)},
 	/* Corega */
 	{USB_DEVICE(0x07AA, 0x0047)},
 	/* D-Link */
diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c
index 331eae7..5710fc5 100644
--- a/drivers/staging/speakup/synth.c
+++ b/drivers/staging/speakup/synth.c
@@ -342,7 +342,7 @@ int synth_init(char *synth_name)
 
 	mutex_lock(&spk_mutex);
 	/* First, check if we already have it loaded. */
-	for (i = 0; synths[i] != NULL && i < MAXSYNTHS; i++)
+	for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++)
 		if (strcmp(synths[i]->name, synth_name) == 0)
 			synth = synths[i];
 
@@ -423,7 +423,7 @@ int synth_add(struct spk_synth *in_synth)
 	int i;
 	int status = 0;
 	mutex_lock(&spk_mutex);
-	for (i = 0; synths[i] != NULL && i < MAXSYNTHS; i++)
+	for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++)
 		/* synth_remove() is responsible for rotating the array down */
 		if (in_synth == synths[i]) {
 			mutex_unlock(&spk_mutex);
diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c
index 08021f4..4664e9d 100644
--- a/drivers/staging/vt6656/dpc.c
+++ b/drivers/staging/vt6656/dpc.c
@@ -1238,7 +1238,7 @@ static BOOL s_bHandleRxEncryption (
 
         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
         *pdwRxTSC47_16 = cpu_to_le32(*(PDWORD)(pbyIV + 4));
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %x\n", *pdwRxTSC47_16);
         if (byDecMode == KEY_CTL_TKIP) {
             *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
         } else {
@@ -1349,7 +1349,7 @@ static BOOL s_bHostWepRxEncryption (
 
         PayloadLen -= (WLAN_HDR_ADDR3_LEN + 8 + 4); // 24 is 802.11 header, 8 is IV&ExtIV, 4 is crc
         *pdwRxTSC47_16 = cpu_to_le32(*(PDWORD)(pbyIV + 4));
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %lx\n",*pdwRxTSC47_16);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ExtIV: %x\n", *pdwRxTSC47_16);
 
         if (byDecMode == KEY_CTL_TKIP) {
             *pwRxTSC15_0 = cpu_to_le16(MAKEWORD(*(pbyIV+2), *pbyIV));
diff --git a/drivers/staging/vt6656/key.c b/drivers/staging/vt6656/key.c
index ee62a06..ba3a561 100644
--- a/drivers/staging/vt6656/key.c
+++ b/drivers/staging/vt6656/key.c
@@ -223,7 +223,7 @@ BOOL KeybSetKey(
     PSKeyManagement pTable,
     PBYTE           pbyBSSID,
     DWORD           dwKeyIndex,
-    unsigned long           uKeyLength,
+	u32 uKeyLength,
     PQWORD          pKeyRSC,
     PBYTE           pbyKey,
     BYTE            byKeyDecMode
@@ -235,7 +235,8 @@ BOOL KeybSetKey(
     PSKeyItem   pKey;
     unsigned int        uKeyIdx;
 
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetKey: %lX\n", dwKeyIndex);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
+		"Enter KeybSetKey: %X\n", dwKeyIndex);
 
     j = (MAX_KEY_TABLE-1);
     for (i=0;i<(MAX_KEY_TABLE-1);i++) {
@@ -261,7 +262,9 @@ BOOL KeybSetKey(
                 if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
                     // Group transmit key
                     pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
-                    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[i].dwGTKeyIndex, i);
+			DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
+				"Group transmit key(R)[%X]: %d\n",
+					pTable->KeyTable[i].dwGTKeyIndex, i);
                 }
                 pTable->KeyTable[i].wKeyCtl &= 0xFF0F;          // clear group key control filed
                 pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
@@ -302,9 +305,12 @@ BOOL KeybSetKey(
             }
             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 
-            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n ", pKey->dwTSC47_16);
-            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
-            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n ", pKey->dwKeyIndex);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %x\n ",
+			pKey->dwTSC47_16);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ",
+			pKey->wTSC15_0);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %x\n ",
+			pKey->dwKeyIndex);
 
             return (TRUE);
         }
@@ -326,7 +332,9 @@ BOOL KeybSetKey(
             if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
                 // Group transmit key
                 pTable->KeyTable[j].dwGTKeyIndex = dwKeyIndex;
-                DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(N)[%lX]: %d\n", pTable->KeyTable[j].dwGTKeyIndex, j);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
+			"Group transmit key(N)[%X]: %d\n",
+				pTable->KeyTable[j].dwGTKeyIndex, j);
             }
             pTable->KeyTable[j].wKeyCtl &= 0xFF0F;          // clear group key control filed
             pTable->KeyTable[j].wKeyCtl |= (byKeyDecMode << 4);
@@ -367,9 +375,11 @@ BOOL KeybSetKey(
         }
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n ", pKey->dwTSC47_16);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %x\n ",
+		pKey->dwTSC47_16);
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n ", pKey->dwKeyIndex);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %x\n ",
+		pKey->dwKeyIndex);
 
         return (TRUE);
     }
@@ -597,7 +607,8 @@ BOOL KeybGetTransmitKey(PSKeyManagement pTable, PBYTE pbyBSSID, DWORD dwKeyType,
                             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
                         }
                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
-                        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwGTKeyIndex: %lX\n", pTable->KeyTable[i].dwGTKeyIndex);
+			DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwGTKeyIndex: %X\n",
+				pTable->KeyTable[i].dwGTKeyIndex);
 
                     return (TRUE);
                 }
@@ -664,7 +675,7 @@ BOOL KeybSetDefaultKey(
     void *pDeviceHandler,
     PSKeyManagement pTable,
     DWORD           dwKeyIndex,
-    unsigned long           uKeyLength,
+	u32 uKeyLength,
     PQWORD          pKeyRSC,
     PBYTE           pbyKey,
     BYTE            byKeyDecMode
@@ -696,7 +707,10 @@ BOOL KeybSetDefaultKey(
     if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
         // Group transmit key
         pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex = dwKeyIndex;
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex, MAX_KEY_TABLE-1);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
+		"Group transmit key(R)[%X]: %d\n",
+		pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex,
+		MAX_KEY_TABLE-1);
 
     }
     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl &= 0x7F00;          // clear all key control filed
@@ -747,9 +761,11 @@ BOOL KeybSetDefaultKey(
     }
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n", pKey->dwTSC47_16);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %x\n",
+		pKey->dwTSC47_16);
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n", pKey->wTSC15_0);
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n", pKey->dwKeyIndex);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %x\n",
+		pKey->dwKeyIndex);
 
     return (TRUE);
 }
@@ -775,7 +791,7 @@ BOOL KeybSetAllGroupKey(
     void *pDeviceHandler,
     PSKeyManagement pTable,
     DWORD           dwKeyIndex,
-    unsigned long           uKeyLength,
+	u32 uKeyLength,
     PQWORD          pKeyRSC,
     PBYTE           pbyKey,
     BYTE            byKeyDecMode
@@ -787,7 +803,8 @@ BOOL KeybSetAllGroupKey(
     PSKeyItem   pKey;
     unsigned int        uKeyIdx;
 
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetAllGroupKey: %lX\n", dwKeyIndex);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetAllGroupKey: %X\n",
+		dwKeyIndex);
 
 
     if ((dwKeyIndex & PAIRWISE_KEY) != 0) {                  // Pairwise key
@@ -804,7 +821,9 @@ BOOL KeybSetAllGroupKey(
             if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
                 // Group transmit key
                 pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
-                DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[i].dwGTKeyIndex, i);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
+			"Group transmit key(R)[%X]: %d\n",
+			pTable->KeyTable[i].dwGTKeyIndex, i);
 
             }
             pTable->KeyTable[i].wKeyCtl &= 0xFF0F;          // clear group key control filed
diff --git a/drivers/staging/vt6656/key.h b/drivers/staging/vt6656/key.h
index f749c7a..bd35d39 100644
--- a/drivers/staging/vt6656/key.h
+++ b/drivers/staging/vt6656/key.h
@@ -58,7 +58,7 @@
 typedef struct tagSKeyItem
 {
     BOOL        bKeyValid;
-    unsigned long       uKeyLength;
+	u32 uKeyLength;
     BYTE        abyKey[MAX_KEY_LEN];
     QWORD       KeyRSC;
     DWORD       dwTSC47_16;
@@ -107,7 +107,7 @@ BOOL KeybSetKey(
     PSKeyManagement pTable,
     PBYTE           pbyBSSID,
     DWORD           dwKeyIndex,
-    unsigned long           uKeyLength,
+	u32 uKeyLength,
     PQWORD          pKeyRSC,
     PBYTE           pbyKey,
     BYTE            byKeyDecMode
@@ -146,7 +146,7 @@ BOOL KeybSetDefaultKey(
     void *pDeviceHandler,
     PSKeyManagement pTable,
     DWORD           dwKeyIndex,
-    unsigned long           uKeyLength,
+	u32 uKeyLength,
     PQWORD          pKeyRSC,
     PBYTE           pbyKey,
     BYTE            byKeyDecMode
@@ -156,7 +156,7 @@ BOOL KeybSetAllGroupKey(
     void *pDeviceHandler,
     PSKeyManagement pTable,
     DWORD           dwKeyIndex,
-    unsigned long           uKeyLength,
+	u32 uKeyLength,
     PQWORD          pKeyRSC,
     PBYTE           pbyKey,
     BYTE            byKeyDecMode
diff --git a/drivers/staging/vt6656/mac.c b/drivers/staging/vt6656/mac.c
index af4a29d..8fddc7b 100644
--- a/drivers/staging/vt6656/mac.c
+++ b/drivers/staging/vt6656/mac.c
@@ -260,7 +260,8 @@ BYTE            pbyData[24];
     dwData1 <<= 16;
     dwData1 |= MAKEWORD(*(pbyAddr+4), *(pbyAddr+5));
 
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"1. wOffset: %d, Data: %lX, KeyCtl:%X\n", wOffset, dwData1, wKeyCtl);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"1. wOffset: %d, Data: %X,"\
+		" KeyCtl:%X\n", wOffset, dwData1, wKeyCtl);
 
     //VNSvOutPortW(dwIoBase + MAC_REG_MISCFFNDEX, wOffset);
     //VNSvOutPortD(dwIoBase + MAC_REG_MISCFFDATA, dwData);
@@ -277,7 +278,8 @@ BYTE            pbyData[24];
     dwData2 <<= 8;
     dwData2 |= *(pbyAddr+0);
 
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"2. wOffset: %d, Data: %lX\n", wOffset, dwData2);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"2. wOffset: %d, Data: %X\n",
+		wOffset, dwData2);
 
     //VNSvOutPortW(dwIoBase + MAC_REG_MISCFFNDEX, wOffset);
     //VNSvOutPortD(dwIoBase + MAC_REG_MISCFFDATA, dwData);
diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c
index 3fd0478..8cf0881 100644
--- a/drivers/staging/vt6656/rf.c
+++ b/drivers/staging/vt6656/rf.c
@@ -769,6 +769,9 @@ BYTE    byPwr = pDevice->byCCKPwr;
         return TRUE;
     }
 
+	if (uCH == 0)
+		return -EINVAL;
+
     switch (uRATE) {
     case RATE_1M:
     case RATE_2M:
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index fe21868..3beb126 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -377,7 +377,8 @@ s_vFillTxKey (
         *(pbyIVHead+3) = (BYTE)(((pDevice->byKeyIndex << 6) & 0xc0) | 0x20); // 0x20 is ExtIV
         // Append IV&ExtIV after Mac Header
         *pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16);
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"vFillTxKey()---- pdwExtIV: %lx\n", *pdwExtIV);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"vFillTxKey()---- pdwExtIV: %x\n",
+		*pdwExtIV);
 
     } else if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) {
         pTransmitKey->wTSC15_0++;
@@ -1753,7 +1754,8 @@ s_bPacketToWirelessUsb(
         MIC_vAppend((PBYTE)&(psEthHeader->abyDstAddr[0]), 12);
         dwMIC_Priority = 0;
         MIC_vAppend((PBYTE)&dwMIC_Priority, 4);
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC KEY: %lX, %lX\n", dwMICKey0, dwMICKey1);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC KEY: %X, %X\n",
+		dwMICKey0, dwMICKey1);
 
         ///////////////////////////////////////////////////////////////////
 
@@ -2635,7 +2637,8 @@ vDMA0_tx_80211(PSDevice  pDevice, struct sk_buff *skb) {
             MIC_vAppend((PBYTE)&(sEthHeader.abyDstAddr[0]), 12);
             dwMIC_Priority = 0;
             MIC_vAppend((PBYTE)&dwMIC_Priority, 4);
-            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"DMA0_tx_8021:MIC KEY: %lX, %lX\n", dwMICKey0, dwMICKey1);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"DMA0_tx_8021:MIC KEY:"\
+			" %X, %X\n", dwMICKey0, dwMICKey1);
 
             uLength = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen;
 
@@ -2655,7 +2658,8 @@ vDMA0_tx_80211(PSDevice  pDevice, struct sk_buff *skb) {
 
             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"uLength: %d, %d\n", uLength, cbFrameBodySize);
             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"cbReqCount:%d, %d, %d, %d\n", cbReqCount, cbHeaderSize, uPadding, cbIVlen);
-            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC:%lx, %lx\n", *pdwMIC_L, *pdwMIC_R);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"MIC:%x, %x\n",
+			*pdwMIC_L, *pdwMIC_R);
 
         }
 
@@ -3029,7 +3033,8 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"error: KEY is GTK!!~~\n");
                     }
                     else {
-                        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Find PTK [%lX]\n", pTransmitKey->dwKeyIndex);
+			DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Find PTK [%X]\n",
+				pTransmitKey->dwKeyIndex);
                         bNeedEncryption = TRUE;
                     }
                 }
@@ -3043,7 +3048,8 @@ int nsDMA_tx_packet(PSDevice pDevice, unsigned int uDMAIdx, struct sk_buff *skb)
             if (pDevice->bEnableHostWEP) {
                 if ((uNodeIndex != 0) &&
                     (pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex & PAIRWISE_KEY)) {
-                    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Find PTK [%lX]\n", pTransmitKey->dwKeyIndex);
+			DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Find PTK [%X]\n",
+				pTransmitKey->dwKeyIndex);
                     bNeedEncryption = TRUE;
                  }
              }
diff --git a/drivers/staging/vt6656/ttype.h b/drivers/staging/vt6656/ttype.h
index 8e9450e..dfbf747 100644
--- a/drivers/staging/vt6656/ttype.h
+++ b/drivers/staging/vt6656/ttype.h
@@ -29,6 +29,8 @@
 #ifndef __TTYPE_H__
 #define __TTYPE_H__
 
+#include <linux/types.h>
+
 /******* Common definitions and typedefs ***********************************/
 
 typedef int             BOOL;
@@ -42,17 +44,17 @@ typedef int             BOOL;
 
 /****** Simple typedefs  ***************************************************/
 
-typedef unsigned char   BYTE;           //  8-bit
-typedef unsigned short  WORD;           // 16-bit
-typedef unsigned long   DWORD;          // 32-bit
+typedef u8 BYTE;
+typedef u16 WORD;
+typedef u32 DWORD;
 
 // QWORD is for those situation that we want
 // an 8-byte-aligned 8 byte long structure
 // which is NOT really a floating point number.
 typedef union tagUQuadWord {
     struct {
-        DWORD   dwLowDword;
-        DWORD   dwHighDword;
+	u32 dwLowDword;
+	u32 dwHighDword;
     } u;
     double      DoNotUseThisField;
 } UQuadWord;
@@ -60,8 +62,8 @@ typedef UQuadWord       QWORD;          // 64-bit
 
 /****** Common pointer types ***********************************************/
 
-typedef unsigned long   ULONG_PTR;      // 32-bit
-typedef unsigned long   DWORD_PTR;      // 32-bit
+typedef u32 ULONG_PTR;
+typedef u32 DWORD_PTR;
 
 // boolean pointer
 
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index 78ea121..31fb96a 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -316,17 +316,19 @@ s_MgrMakeProbeRequest(
     return pTxPacket;
 }
 
-void vCommandTimerWait(void *hDeviceContext, unsigned int MSecond)
+void vCommandTimerWait(void *hDeviceContext, unsigned long MSecond)
 {
-    PSDevice        pDevice = (PSDevice)hDeviceContext;
+	PSDevice pDevice = (PSDevice)hDeviceContext;
 
-    init_timer(&pDevice->sTimerCommand);
-    pDevice->sTimerCommand.data = (unsigned long)pDevice;
-    pDevice->sTimerCommand.function = (TimerFunction)vRunCommand;
-    // RUN_AT :1 msec ~= (HZ/1024)
-    pDevice->sTimerCommand.expires = (unsigned int)RUN_AT((MSecond * HZ) >> 10);
-    add_timer(&pDevice->sTimerCommand);
-    return;
+	init_timer(&pDevice->sTimerCommand);
+
+	pDevice->sTimerCommand.data = (unsigned long)pDevice;
+	pDevice->sTimerCommand.function = (TimerFunction)vRunCommand;
+	pDevice->sTimerCommand.expires = RUN_AT((MSecond * HZ) / 1000);
+
+	add_timer(&pDevice->sTimerCommand);
+
+	return;
 }
 
 void vRunCommand(void *hDeviceContext)
diff --git a/drivers/staging/vt6656/wpa2.h b/drivers/staging/vt6656/wpa2.h
index 46c2959..c359252 100644
--- a/drivers/staging/vt6656/wpa2.h
+++ b/drivers/staging/vt6656/wpa2.h
@@ -45,8 +45,8 @@ typedef struct tagsPMKIDInfo {
 } PMKIDInfo, *PPMKIDInfo;
 
 typedef struct tagSPMKIDCache {
-    unsigned long       BSSIDInfoCount;
-    PMKIDInfo   BSSIDInfo[MAX_PMKID_CACHE];
+	u32 BSSIDInfoCount;
+	PMKIDInfo BSSIDInfo[MAX_PMKID_CACHE];
 } SPMKIDCache, *PSPMKIDCache;
 
 
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index ad202b3..486c5dd 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -2359,7 +2359,7 @@ static void iscsit_build_conn_drop_async_message(struct iscsi_conn *conn)
 	if (!conn_p)
 		return;
 
-	cmd = iscsit_allocate_cmd(conn_p, GFP_KERNEL);
+	cmd = iscsit_allocate_cmd(conn_p, GFP_ATOMIC);
 	if (!cmd) {
 		iscsit_dec_conn_usage_count(conn_p);
 		return;
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index 87901fa..a426c40 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -431,7 +431,6 @@ static void ft_sess_rcu_free(struct rcu_head *rcu)
 {
 	struct ft_sess *sess = container_of(rcu, struct ft_sess, rcu);
 
-	transport_deregister_session(sess->se_sess);
 	kfree(sess);
 }
 
@@ -439,6 +438,7 @@ static void ft_sess_free(struct kref *kref)
 {
 	struct ft_sess *sess = container_of(kref, struct ft_sess, kref);
 
+	transport_deregister_session(sess->se_sess);
 	call_rcu(&sess->rcu, ft_sess_rcu_free);
 }
 
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index b4e87cf..3a7a950 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1602,6 +1602,9 @@ static const struct usb_device_id acm_ids[] = {
 	{ USB_DEVICE(0x0572, 0x1340), /* Conexant CX93010-2x UCMxx */
 	.driver_info = NO_UNION_NORMAL,
 	},
+	{ USB_DEVICE(0x05f9, 0x4002), /* PSC Scanning, Magellan 800i */
+	.driver_info = NO_UNION_NORMAL,
+	},
 	{ USB_DEVICE(0x1bbb, 0x0003), /* Alcatel OT-I650 */
 	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
 	},
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 11344bc..ef8f790 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -644,6 +644,60 @@ static int hub_hub_status(struct usb_hub *hub,
 	return ret;
 }
 
+static int hub_set_port_link_state(struct usb_hub *hub, int port1,
+			unsigned int link_status)
+{
+	return set_port_feature(hub->hdev,
+			port1 | (link_status << 3),
+			USB_PORT_FEAT_LINK_STATE);
+}
+
+/*
+ * If USB 3.0 ports are placed into the Disabled state, they will no longer
+ * detect any device connects or disconnects.  This is generally not what the
+ * USB core wants, since it expects a disabled port to produce a port status
+ * change event when a new device connects.
+ *
+ * Instead, set the link state to Disabled, wait for the link to settle into
+ * that state, clear any change bits, and then put the port into the RxDetect
+ * state.
+ */
+static int hub_usb3_port_disable(struct usb_hub *hub, int port1)
+{
+	int ret;
+	int total_time;
+	u16 portchange, portstatus;
+
+	if (!hub_is_superspeed(hub->hdev))
+		return -EINVAL;
+
+	ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED);
+	if (ret) {
+		dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n",
+				port1, ret);
+		return ret;
+	}
+
+	/* Wait for the link to enter the disabled state. */
+	for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) {
+		ret = hub_port_status(hub, port1, &portstatus, &portchange);
+		if (ret < 0)
+			return ret;
+
+		if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
+				USB_SS_PORT_LS_SS_DISABLED)
+			break;
+		if (total_time >= HUB_DEBOUNCE_TIMEOUT)
+			break;
+		msleep(HUB_DEBOUNCE_STEP);
+	}
+	if (total_time >= HUB_DEBOUNCE_TIMEOUT)
+		dev_warn(hub->intfdev, "Could not disable port %d after %d ms\n",
+				port1, total_time);
+
+	return hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_RX_DETECT);
+}
+
 static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
 {
 	struct usb_device *hdev = hub->hdev;
@@ -652,8 +706,13 @@ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
 	if (hdev->children[port1-1] && set_state)
 		usb_set_device_state(hdev->children[port1-1],
 				USB_STATE_NOTATTACHED);
-	if (!hub->error && !hub_is_superspeed(hub->hdev))
-		ret = clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE);
+	if (!hub->error) {
+		if (hub_is_superspeed(hub->hdev))
+			ret = hub_usb3_port_disable(hub, port1);
+		else
+			ret = clear_port_feature(hdev, port1,
+					USB_PORT_FEAT_ENABLE);
+	}
 	if (ret)
 		dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n",
 				port1, ret);
@@ -2109,7 +2168,7 @@ static unsigned hub_is_wusb(struct usb_hub *hub)
 #define HUB_SHORT_RESET_TIME	10
 #define HUB_BH_RESET_TIME	50
 #define HUB_LONG_RESET_TIME	200
-#define HUB_RESET_TIMEOUT	500
+#define HUB_RESET_TIMEOUT	800
 
 static int hub_port_reset(struct usb_hub *hub, int port1,
 			struct usb_device *udev, unsigned int delay, bool warm);
@@ -2144,6 +2203,10 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
 		if (ret < 0)
 			return ret;
 
+		/* The port state is unknown until the reset completes. */
+		if ((portstatus & USB_PORT_STAT_RESET))
+			goto delay;
+
 		/*
 		 * Some buggy devices require a warm reset to be issued even
 		 * when the port appears not to be connected.
@@ -2189,11 +2252,7 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
 			if ((portchange & USB_PORT_STAT_C_CONNECTION))
 				return -ENOTCONN;
 
-			/* if we`ve finished resetting, then break out of
-			 * the loop
-			 */
-			if (!(portstatus & USB_PORT_STAT_RESET) &&
-			    (portstatus & USB_PORT_STAT_ENABLE)) {
+			if ((portstatus & USB_PORT_STAT_ENABLE)) {
 				if (hub_is_wusb(hub))
 					udev->speed = USB_SPEED_WIRELESS;
 				else if (hub_is_superspeed(hub->hdev))
@@ -2207,10 +2266,15 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
 				return 0;
 			}
 		} else {
-			if (portchange & USB_PORT_STAT_C_BH_RESET)
-				return 0;
+			if (!(portstatus & USB_PORT_STAT_CONNECTION) ||
+					hub_port_warm_reset_required(hub,
+						portstatus))
+				return -ENOTCONN;
+
+			return 0;
 		}
 
+delay:
 		/* switch to the long delay after two short delay failures */
 		if (delay_time >= 2 * HUB_SHORT_RESET_TIME)
 			delay = HUB_LONG_RESET_TIME;
@@ -2234,14 +2298,11 @@ static void hub_port_finish_reset(struct usb_hub *hub, int port1,
 			msleep(10 + 40);
 			update_devnum(udev, 0);
 			hcd = bus_to_hcd(udev->bus);
-			if (hcd->driver->reset_device) {
-				*status = hcd->driver->reset_device(hcd, udev);
-				if (*status < 0) {
-					dev_err(&udev->dev, "Cannot reset "
-							"HCD device state\n");
-					break;
-				}
-			}
+			/* The xHC may think the device is already reset,
+			 * so ignore the status.
+			 */
+			if (hcd->driver->reset_device)
+				hcd->driver->reset_device(hcd, udev);
 		}
 		/* FALL THROUGH */
 	case -ENOTCONN:
@@ -2249,16 +2310,16 @@ static void hub_port_finish_reset(struct usb_hub *hub, int port1,
 		clear_port_feature(hub->hdev,
 				port1, USB_PORT_FEAT_C_RESET);
 		/* FIXME need disconnect() for NOTATTACHED device */
-		if (warm) {
+		if (hub_is_superspeed(hub->hdev)) {
 			clear_port_feature(hub->hdev, port1,
 					USB_PORT_FEAT_C_BH_PORT_RESET);
 			clear_port_feature(hub->hdev, port1,
 					USB_PORT_FEAT_C_PORT_LINK_STATE);
-		} else {
+		}
+		if (!warm)
 			usb_set_device_state(udev, *status
 					? USB_STATE_NOTATTACHED
 					: USB_STATE_DEFAULT);
-		}
 		break;
 	}
 }
@@ -2548,7 +2609,7 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
 static int finish_port_resume(struct usb_device *udev)
 {
 	int	status = 0;
-	u16	devstatus;
+	u16	devstatus = 0;
 
 	/* caller owns the udev device lock */
 	dev_dbg(&udev->dev, "%s\n",
@@ -2593,7 +2654,13 @@ static int finish_port_resume(struct usb_device *udev)
 	if (status) {
 		dev_dbg(&udev->dev, "gone after usb resume? status %d\n",
 				status);
-	} else if (udev->actconfig) {
+	/*
+	 * There are a few quirky devices which violate the standard
+	 * by claiming to have remote wakeup enabled after a reset,
+	 * which crash if the feature is cleared, hence check for
+	 * udev->reset_resume
+	 */
+	} else if (udev->actconfig && !udev->reset_resume) {
 		le16_to_cpus(&devstatus);
 		if (devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) {
 			status = usb_control_msg(udev,
@@ -3774,9 +3841,14 @@ static void hub_events(void)
 			 * SS.Inactive state.
 			 */
 			if (hub_port_warm_reset_required(hub, portstatus)) {
+				int status;
+
 				dev_dbg(hub_dev, "warm reset port %d\n", i);
-				hub_port_reset(hub, i, NULL,
+				status = hub_port_reset(hub, i, NULL,
 						HUB_BH_RESET_TIME, true);
+				if (status < 0)
+					hub_port_disable(hub, i, 1);
+				connect_change = 0;
 			}
 
 			if (connect_change)
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index ef116a5..ab11ca3c 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1770,28 +1770,8 @@ free_interfaces:
 		goto free_interfaces;
 	}
 
-	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
-			      USB_REQ_SET_CONFIGURATION, 0, configuration, 0,
-			      NULL, 0, USB_CTRL_SET_TIMEOUT);
-	if (ret < 0) {
-		/* All the old state is gone, so what else can we do?
-		 * The device is probably useless now anyway.
-		 */
-		cp = NULL;
-	}
-
-	dev->actconfig = cp;
-	if (!cp) {
-		usb_set_device_state(dev, USB_STATE_ADDRESS);
-		usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL);
-		mutex_unlock(hcd->bandwidth_mutex);
-		usb_autosuspend_device(dev);
-		goto free_interfaces;
-	}
-	mutex_unlock(hcd->bandwidth_mutex);
-	usb_set_device_state(dev, USB_STATE_CONFIGURED);
-
-	/* Initialize the new interface structures and the
+	/*
+	 * Initialize the new interface structures and the
 	 * hc/hcd/usbcore interface/endpoint state.
 	 */
 	for (i = 0; i < nintf; ++i) {
@@ -1835,6 +1815,35 @@ free_interfaces:
 	}
 	kfree(new_interfaces);
 
+	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+			      USB_REQ_SET_CONFIGURATION, 0, configuration, 0,
+			      NULL, 0, USB_CTRL_SET_TIMEOUT);
+	if (ret < 0 && cp) {
+		/*
+		 * All the old state is gone, so what else can we do?
+		 * The device is probably useless now anyway.
+		 */
+		usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL);
+		for (i = 0; i < nintf; ++i) {
+			usb_disable_interface(dev, cp->interface[i], true);
+			put_device(&cp->interface[i]->dev);
+			cp->interface[i] = NULL;
+		}
+		cp = NULL;
+	}
+
+	dev->actconfig = cp;
+	mutex_unlock(hcd->bandwidth_mutex);
+
+	if (!cp) {
+		usb_set_device_state(dev, USB_STATE_ADDRESS);
+
+		/* Leave LPM disabled while the device is unconfigured. */
+		usb_autosuspend_device(dev);
+		return ret;
+	}
+	usb_set_device_state(dev, USB_STATE_CONFIGURED);
+
 	if (cp->string == NULL &&
 			!(dev->quirks & USB_QUIRK_CONFIG_INTF_STRINGS))
 		cp->string = usb_cache_string(dev, cp->desc.iConfiguration);
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 2d277a2..9a7b436 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -126,10 +126,7 @@ static const char ep0name[] = "ep0";
 static const char *const ep_name[] = {
 	ep0name,				/* everyone has ep0 */
 
-	/* act like a net2280: high speed, six configurable endpoints */
-	"ep-a", "ep-b", "ep-c", "ep-d", "ep-e", "ep-f",
-
-	/* or like pxa250: fifteen fixed function endpoints */
+	/* act like a pxa250: fifteen fixed function endpoints */
 	"ep1in-bulk", "ep2out-bulk", "ep3in-iso", "ep4out-iso", "ep5in-int",
 	"ep6in-bulk", "ep7out-bulk", "ep8in-iso", "ep9out-iso", "ep10in-int",
 	"ep11in-bulk", "ep12out-bulk", "ep13in-iso", "ep14out-iso",
@@ -137,6 +134,10 @@ static const char *const ep_name[] = {
 
 	/* or like sa1100: two fixed function endpoints */
 	"ep1out-bulk", "ep2in-bulk",
+
+	/* and now some generic EPs so we have enough in multi config */
+	"ep3out", "ep4in", "ep5out", "ep6out", "ep7in", "ep8out", "ep9in",
+	"ep10out", "ep11out", "ep12in", "ep13out", "ep14in", "ep15out",
 };
 #define DUMMY_ENDPOINTS	ARRAY_SIZE(ep_name)
 
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index de07b75..8331893 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -753,12 +753,39 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			break;
 		case USB_PORT_FEAT_LINK_STATE:
 			temp = xhci_readl(xhci, port_array[wIndex]);
+
+			/* Disable port */
+			if (link_state == USB_SS_PORT_LS_SS_DISABLED) {
+				xhci_dbg(xhci, "Disable port %d\n", wIndex);
+				temp = xhci_port_state_to_neutral(temp);
+				/*
+				 * Clear all change bits, so that we get a new
+				 * connection event.
+				 */
+				temp |= PORT_CSC | PORT_PEC | PORT_WRC |
+					PORT_OCC | PORT_RC | PORT_PLC |
+					PORT_CEC;
+				xhci_writel(xhci, temp | PORT_PE,
+					port_array[wIndex]);
+				temp = xhci_readl(xhci, port_array[wIndex]);
+				break;
+			}
+
+			/* Put link in RxDetect (enable port) */
+			if (link_state == USB_SS_PORT_LS_RX_DETECT) {
+				xhci_dbg(xhci, "Enable port %d\n", wIndex);
+				xhci_set_link_state(xhci, port_array, wIndex,
+						link_state);
+				temp = xhci_readl(xhci, port_array[wIndex]);
+				break;
+			}
+
 			/* Software should not attempt to set
-			 * port link state above '5' (Rx.Detect) and the port
+			 * port link state above '3' (U3) and the port
 			 * must be enabled.
 			 */
 			if ((temp & PORT_PE) == 0 ||
-				(link_state > USB_SS_PORT_LS_RX_DETECT)) {
+				(link_state > USB_SS_PORT_LS_U3)) {
 				xhci_warn(xhci, "Cannot set link state.\n");
 				goto error;
 			}
@@ -913,6 +940,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 	int max_ports;
 	__le32 __iomem **port_array;
 	struct xhci_bus_state *bus_state;
+	bool reset_change = false;
 
 	max_ports = xhci_get_ports(hcd, &port_array);
 	bus_state = &xhci->bus_state[hcd_index(hcd)];
@@ -944,6 +972,12 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 			buf[(i + 1) / 8] |= 1 << (i + 1) % 8;
 			status = 1;
 		}
+		if ((temp & PORT_RC))
+			reset_change = true;
+	}
+	if (!status && !reset_change) {
+		xhci_dbg(xhci, "%s: stopping port polling.\n", __func__);
+		clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
 	}
 	spin_unlock_irqrestore(&xhci->lock, flags);
 	return status ? retval : 0;
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 3e16f1c..b42a6fb 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1250,6 +1250,8 @@ static unsigned int xhci_microframes_to_exponent(struct usb_device *udev,
 static unsigned int xhci_parse_microframe_interval(struct usb_device *udev,
 		struct usb_host_endpoint *ep)
 {
+	if (ep->desc.bInterval == 0)
+		return 0;
 	return xhci_microframes_to_exponent(udev, ep,
 			ep->desc.bInterval, 0, 15);
 }
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index bf8bcc4..01361f9 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1725,6 +1725,15 @@ cleanup:
 	if (bogus_port_status)
 		return;
 
+	/*
+	 * xHCI port-status-change events occur when the "or" of all the
+	 * status-change bits in the portsc register changes from 0 to 1.
+	 * New status changes won't cause an event if any other change
+	 * bits are still set.  When an event occurs, switch over to
+	 * polling to avoid losing status changes.
+	 */
+	xhci_dbg(xhci, "%s: starting port polling.\n", __func__);
+	set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
 	spin_unlock(&xhci->lock);
 	/* Pass this up to the core */
 	usb_hcd_poll_rh_status(hcd);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b4063fc..b04134a 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -880,6 +880,11 @@ int xhci_suspend(struct xhci_hcd *xhci)
 	struct usb_hcd		*hcd = xhci_to_hcd(xhci);
 	u32			command;
 
+	/* Don't poll the roothubs on bus suspend. */
+	xhci_dbg(xhci, "%s: stopping port polling.\n", __func__);
+	clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+	del_timer_sync(&hcd->rh_timer);
+
 	spin_lock_irq(&xhci->lock);
 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags);
@@ -1064,6 +1069,11 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	if (xhci->quirks & XHCI_COMP_MODE_QUIRK)
 		compliance_mode_recovery_timer_init(xhci);
 
+	/* Re-enable port polling. */
+	xhci_dbg(xhci, "%s: starting port polling.\n", __func__);
+	set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+	usb_hcd_poll_rh_status(hcd);
+
 	return retval;
 }
 #endif	/* CONFIG_PM */
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 66aaccf..a2b4008 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2400,10 +2400,7 @@ static int __init musb_init(void)
 	if (usb_disabled())
 		return 0;
 
-	pr_info("%s: version " MUSB_VERSION ", "
-		"?dma?"
-		", "
-		"otg (peripheral+host)",
+	pr_info("%s: version " MUSB_VERSION ", ?dma?, otg (peripheral+host)\n",
 		musb_driver_name);
 	return platform_driver_register(&musb_driver);
 }
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 25903f5..3fbf39d 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -881,6 +881,8 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) },
+	/* Crucible Devices */
+	{ USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) },
 	{ },					/* Optional parameter entry */
 	{ }					/* Terminating entry */
 };
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 049b6e7..fa5d560 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -1259,3 +1259,9 @@
  * ATI command output: Cinterion MC55i
  */
 #define FTDI_CINTERION_MC55I_PID	0xA951
+
+/*
+ * Product: Comet Caller ID decoder
+ * Manufacturer: Crucible Technologies
+ */
+#define FTDI_CT_COMET_PID	0x8e08
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 0c3d290..ba23ad5 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -288,6 +288,7 @@ static void option_instat_callback(struct urb *urb);
 #define ALCATEL_VENDOR_ID			0x1bbb
 #define ALCATEL_PRODUCT_X060S_X200		0x0000
 #define ALCATEL_PRODUCT_X220_X500D		0x0017
+#define ALCATEL_PRODUCT_L100V			0x011e
 
 #define PIRELLI_VENDOR_ID			0x1266
 #define PIRELLI_PRODUCT_C100_1			0x1002
@@ -429,9 +430,12 @@ static void option_instat_callback(struct urb *urb);
 #define MEDIATEK_VENDOR_ID			0x0e8d
 #define MEDIATEK_PRODUCT_DC_1COM		0x00a0
 #define MEDIATEK_PRODUCT_DC_4COM		0x00a5
+#define MEDIATEK_PRODUCT_DC_4COM2		0x00a7
 #define MEDIATEK_PRODUCT_DC_5COM		0x00a4
 #define MEDIATEK_PRODUCT_7208_1COM		0x7101
 #define MEDIATEK_PRODUCT_7208_2COM		0x7102
+#define MEDIATEK_PRODUCT_7103_2COM		0x7103
+#define MEDIATEK_PRODUCT_7106_2COM		0x7106
 #define MEDIATEK_PRODUCT_FP_1COM		0x0003
 #define MEDIATEK_PRODUCT_FP_2COM		0x0023
 #define MEDIATEK_PRODUCT_FPDC_1COM		0x0043
@@ -441,6 +445,10 @@ static void option_instat_callback(struct urb *urb);
 #define CELLIENT_VENDOR_ID			0x2692
 #define CELLIENT_PRODUCT_MEN200			0x9005
 
+/* Hyundai Petatel Inc. products */
+#define PETATEL_VENDOR_ID			0x1ff4
+#define PETATEL_PRODUCT_NP10T			0x600e
+
 /* some devices interfaces need special handling due to a number of reasons */
 enum option_blacklist_reason {
 		OPTION_BLACKLIST_NONE = 0,
@@ -923,7 +931,8 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0257, 0xff, 0xff, 0xff), /* ZTE MF821 */
 	  .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0265, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0284, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0284, 0xff, 0xff, 0xff), /* ZTE MF880 */
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0317, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0326, 0xff, 0xff, 0xff),
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
@@ -1190,6 +1199,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = (kernel_ulong_t)&alcatel_x200_blacklist
 	},
 	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220_X500D) },
+	{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_L100V),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) },
 	{ USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) },
 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),
@@ -1294,7 +1305,12 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FP_2COM, 0x0a, 0x00, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_1COM, 0x0a, 0x00, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_2COM, 0x0a, 0x00, 0x00) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7103_2COM, 0xff, 0x00, 0x00) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7106_2COM, 0x02, 0x02, 0x01) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x02, 0x01) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) },
+	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T) },
 	{ } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index 4a89f88..9f89992 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -366,7 +366,8 @@ static void mxsfb_disable_controller(struct fb_info *fb_info)
 		loop--;
 	}
 
-	writel(VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4 + REG_CLR);
+	reg = readl(host->base + LCDC_VDCTRL4);
+	writel(reg & ~VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4);
 
 	clk_disable_unprepare(host->clk);
 
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 32ee086..bb01881 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -267,6 +267,14 @@ static void finish_read(struct ceph_osd_request *req, struct ceph_msg *msg)
 	kfree(req->r_pages);
 }
 
+static void ceph_unlock_page_vector(struct page **pages, int num_pages)
+{
+	int i;
+
+	for (i = 0; i < num_pages; i++)
+		unlock_page(pages[i]);
+}
+
 /*
  * start an async read(ahead) operation.  return nr_pages we submitted
  * a read for on success, or negative error code.
@@ -308,8 +316,8 @@ static int start_read(struct inode *inode, struct list_head *page_list, int max)
 				    NULL, 0,
 				    ci->i_truncate_seq, ci->i_truncate_size,
 				    NULL, false, 1, 0);
-	if (!req)
-		return -ENOMEM;
+	if (IS_ERR(req))
+		return PTR_ERR(req);
 
 	/* build page vector */
 	nr_pages = len >> PAGE_CACHE_SHIFT;
@@ -347,6 +355,7 @@ static int start_read(struct inode *inode, struct list_head *page_list, int max)
 	return nr_pages;
 
 out_pages:
+	ceph_unlock_page_vector(pages, nr_pages);
 	ceph_release_page_vector(pages, nr_pages);
 out:
 	ceph_osdc_put_request(req);
@@ -831,8 +840,8 @@ get_more_pages:
 					    ci->i_truncate_size,
 					    &inode->i_mtime, true, 1, 0);
 
-				if (!req) {
-					rc = -ENOMEM;
+				if (IS_ERR(req)) {
+					rc = PTR_ERR(req);
 					unlock_page(page);
 					break;
 				}
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 620daad..e7d4077 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1349,11 +1349,15 @@ int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask)
 		if (!ci->i_head_snapc)
 			ci->i_head_snapc = ceph_get_snap_context(
 				ci->i_snap_realm->cached_context);
-		dout(" inode %p now dirty snapc %p\n", &ci->vfs_inode,
-			ci->i_head_snapc);
+		dout(" inode %p now dirty snapc %p auth cap %p\n",
+		     &ci->vfs_inode, ci->i_head_snapc, ci->i_auth_cap);
 		BUG_ON(!list_empty(&ci->i_dirty_item));
 		spin_lock(&mdsc->cap_dirty_lock);
-		list_add(&ci->i_dirty_item, &mdsc->cap_dirty);
+		if (ci->i_auth_cap)
+			list_add(&ci->i_dirty_item, &mdsc->cap_dirty);
+		else
+			list_add(&ci->i_dirty_item,
+				 &mdsc->cap_dirty_migrating);
 		spin_unlock(&mdsc->cap_dirty_lock);
 		if (ci->i_flushing_caps == 0) {
 			ihold(inode);
@@ -2388,7 +2392,7 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
 			    &atime);
 
 	/* max size increase? */
-	if (max_size != ci->i_max_size) {
+	if (ci->i_auth_cap == cap && max_size != ci->i_max_size) {
 		dout("max_size %lld -> %llu\n", ci->i_max_size, max_size);
 		ci->i_max_size = max_size;
 		if (max_size >= ci->i_wanted_max_size) {
@@ -2745,6 +2749,7 @@ static void handle_cap_import(struct ceph_mds_client *mdsc,
 
 	/* make sure we re-request max_size, if necessary */
 	spin_lock(&ci->i_ceph_lock);
+	ci->i_wanted_max_size = 0;  /* reset */
 	ci->i_requested_max_size = 0;
 	spin_unlock(&ci->i_ceph_lock);
 }
@@ -2840,8 +2845,6 @@ void ceph_handle_caps(struct ceph_mds_session *session,
 	case CEPH_CAP_OP_IMPORT:
 		handle_cap_import(mdsc, inode, h, session,
 				  snaptrace, snaptrace_len);
-		ceph_check_caps(ceph_inode(inode), 0, session);
-		goto done_unlocked;
 	}
 
 	/* the rest require a cap */
@@ -2858,6 +2861,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
 	switch (op) {
 	case CEPH_CAP_OP_REVOKE:
 	case CEPH_CAP_OP_GRANT:
+	case CEPH_CAP_OP_IMPORT:
 		handle_cap_grant(inode, h, session, cap, msg->middle);
 		goto done_unlocked;
 
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index ed72428..9ce3a4b 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -529,8 +529,8 @@ more:
 				    do_sync,
 				    ci->i_truncate_seq, ci->i_truncate_size,
 				    &mtime, false, 2, page_align);
-	if (!req)
-		return -ENOMEM;
+	if (IS_ERR(req))
+		return PTR_ERR(req);
 
 	if (file->f_flags & O_DIRECT) {
 		pages = ceph_get_direct_page_vector(data, num_pages, false);
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 9fff9f3..81613bc 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -992,11 +992,15 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
 	if (rinfo->head->is_dentry) {
 		struct inode *dir = req->r_locked_dir;
 
-		err = fill_inode(dir, &rinfo->diri, rinfo->dirfrag,
-				 session, req->r_request_started, -1,
-				 &req->r_caps_reservation);
-		if (err < 0)
-			return err;
+		if (dir) {
+			err = fill_inode(dir, &rinfo->diri, rinfo->dirfrag,
+					 session, req->r_request_started, -1,
+					 &req->r_caps_reservation);
+			if (err < 0)
+				return err;
+		} else {
+			WARN_ON_ONCE(1);
+		}
 	}
 
 	/*
@@ -1004,6 +1008,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
 	 * will have trouble splicing in the virtual snapdir later
 	 */
 	if (rinfo->head->is_dentry && !req->r_aborted &&
+	    req->r_locked_dir &&
 	    (rinfo->head->is_target || strncmp(req->r_dentry->d_name.name,
 					       fsc->mount_options->snapdir_name,
 					       req->r_dentry->d_name.len))) {
@@ -1461,7 +1466,7 @@ void __ceph_do_pending_vmtruncate(struct inode *inode)
 {
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	u64 to;
-	int wrbuffer_refs, wake = 0;
+	int wrbuffer_refs, finish = 0;
 
 retry:
 	spin_lock(&ci->i_ceph_lock);
@@ -1493,15 +1498,18 @@ retry:
 	truncate_inode_pages(inode->i_mapping, to);
 
 	spin_lock(&ci->i_ceph_lock);
-	ci->i_truncate_pending--;
-	if (ci->i_truncate_pending == 0)
-		wake = 1;
+	if (to == ci->i_truncate_size) {
+		ci->i_truncate_pending = 0;
+		finish = 1;
+	}
 	spin_unlock(&ci->i_ceph_lock);
+	if (!finish)
+		goto retry;
 
 	if (wrbuffer_refs == 0)
 		ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
-	if (wake)
-		wake_up_all(&ci->i_cap_wq);
+
+	wake_up_all(&ci->i_cap_wq);
 }
 
 
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 7f1682d..3fd08ad 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1886,9 +1886,14 @@ finish:
 static void __wake_requests(struct ceph_mds_client *mdsc,
 			    struct list_head *head)
 {
-	struct ceph_mds_request *req, *nreq;
+	struct ceph_mds_request *req;
+	LIST_HEAD(tmp_list);
+
+	list_splice_init(head, &tmp_list);
 
-	list_for_each_entry_safe(req, nreq, head, r_wait) {
+	while (!list_empty(&tmp_list)) {
+		req = list_entry(tmp_list.next,
+				 struct ceph_mds_request, r_wait);
 		list_del_init(&req->r_wait);
 		__do_request(mdsc, req);
 	}
@@ -2528,6 +2533,7 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
 	session->s_state = CEPH_MDS_SESSION_RECONNECTING;
 	session->s_seq = 0;
 
+	ceph_con_close(&session->s_con);
 	ceph_con_open(&session->s_con,
 		      CEPH_ENTITY_TYPE_MDS, mds,
 		      ceph_mdsmap_get_addr(mdsc->mdsmap, mds));
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 1e67dd7..f363918 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -387,8 +387,6 @@ static int ceph_show_options(struct seq_file *m, struct dentry *root)
 		seq_printf(m, ",mount_timeout=%d", opt->mount_timeout);
 	if (opt->osd_idle_ttl != CEPH_OSD_IDLE_TTL_DEFAULT)
 		seq_printf(m, ",osd_idle_ttl=%d", opt->osd_idle_ttl);
-	if (opt->osd_timeout != CEPH_OSD_TIMEOUT_DEFAULT)
-		seq_printf(m, ",osdtimeout=%d", opt->osd_timeout);
 	if (opt->osd_keepalive_timeout != CEPH_OSD_KEEPALIVE_DEFAULT)
 		seq_printf(m, ",osdkeepalivetimeout=%d",
 			   opt->osd_keepalive_timeout);
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index c0b3c70..33c9599 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1226,11 +1226,31 @@ static int ep_modify(struct eventpoll *ep, struct epitem *epi, struct epoll_even
 	 * otherwise we might miss an event that happens between the
 	 * f_op->poll() call and the new event set registering.
 	 */
-	epi->event.events = event->events;
+	epi->event.events = event->events; /* need barrier below */
 	pt._key = event->events;
 	epi->event.data = event->data; /* protected by mtx */
 
 	/*
+	 * The following barrier has two effects:
+	 *
+	 * 1) Flush epi changes above to other CPUs.  This ensures
+	 *    we do not miss events from ep_poll_callback if an
+	 *    event occurs immediately after we call f_op->poll().
+	 *    We need this because we did not take ep->lock while
+	 *    changing epi above (but ep_poll_callback does take
+	 *    ep->lock).
+	 *
+	 * 2) We also need to ensure we do not miss _past_ events
+	 *    when calling f_op->poll().  This barrier also
+	 *    pairs with the barrier in wq_has_sleeper (see
+	 *    comments for wq_has_sleeper).
+	 *
+	 * This barrier will now guarantee ep_poll_callback or f_op->poll
+	 * (or both) will notice the readiness of an item.
+	 */
+	smp_mb();
+
+	/*
 	 * Get current event bits. We can safely use the file* here because
 	 * its usage count has been increased by the caller of this function.
 	 */
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index a5c29bb..8535c45 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -410,8 +410,10 @@ ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value,
 
 retry:
 	handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
+	if (IS_ERR(handle)) {
+		error = PTR_ERR(handle);
+		goto release_and_out;
+	}
 	error = ext4_set_acl(handle, inode, type, acl);
 	ext4_journal_stop(handle);
 	if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index c215985..852d4c2 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2110,13 +2110,14 @@ ext4_ext_in_cache(struct inode *inode, ext4_lblk_t block,
  * removes index from the index block.
  */
 static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
-			struct ext4_ext_path *path)
+			struct ext4_ext_path *path, int depth)
 {
 	int err;
 	ext4_fsblk_t leaf;
 
 	/* free index block */
-	path--;
+	depth--;
+	path = path + depth;
 	leaf = ext4_idx_pblock(path->p_idx);
 	if (unlikely(path->p_hdr->eh_entries == 0)) {
 		EXT4_ERROR_INODE(inode, "path->p_hdr->eh_entries == 0");
@@ -2141,6 +2142,19 @@ static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
 
 	ext4_free_blocks(handle, inode, NULL, leaf, 1,
 			 EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET);
+
+	while (--depth >= 0) {
+		if (path->p_idx != EXT_FIRST_INDEX(path->p_hdr))
+			break;
+		path--;
+		err = ext4_ext_get_access(handle, inode, path);
+		if (err)
+			break;
+		path->p_idx->ei_block = (path+1)->p_idx->ei_block;
+		err = ext4_ext_dirty(handle, inode, path);
+		if (err)
+			break;
+	}
 	return err;
 }
 
@@ -2474,7 +2488,7 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
 	/* if this leaf is free, then we should
 	 * remove it from index block above */
 	if (err == 0 && eh->eh_entries == 0 && path[depth].p_bh != NULL)
-		err = ext4_ext_rm_idx(handle, inode, path + depth);
+		err = ext4_ext_rm_idx(handle, inode, path, depth);
 
 out:
 	return err;
@@ -2675,7 +2689,7 @@ cont:
 				/* index is empty, remove it;
 				 * handle must be already prepared by the
 				 * truncatei_leaf() */
-				err = ext4_ext_rm_idx(handle, inode, path + i);
+				err = ext4_ext_rm_idx(handle, inode, path, i);
 			}
 			/* root level has p_bh == NULL, brelse() eats this */
 			brelse(path[i].p_bh);
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 556cc82..902544e 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -734,7 +734,6 @@ got:
 
 		BUFFER_TRACE(block_bitmap_bh, "dirty block bitmap");
 		err = ext4_handle_dirty_metadata(handle, NULL, block_bitmap_bh);
-		brelse(block_bitmap_bh);
 
 		/* recheck and clear flag under lock if we still need to */
 		ext4_lock_group(sb, group);
@@ -746,6 +745,7 @@ got:
 								gdp);
 		}
 		ext4_unlock_group(sb, group);
+		brelse(block_bitmap_bh);
 
 		if (err)
 			goto fail;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b1c28f1..288f4c6 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1599,9 +1599,7 @@ static int parse_options(char *options, struct super_block *sb,
 			 unsigned int *journal_ioprio,
 			 int is_remount)
 {
-#ifdef CONFIG_QUOTA
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
-#endif
 	char *p;
 	substring_t args[MAX_OPT_ARGS];
 	int token;
@@ -1650,6 +1648,16 @@ static int parse_options(char *options, struct super_block *sb,
 		}
 	}
 #endif
+	if (test_opt(sb, DIOREAD_NOLOCK)) {
+		int blocksize =
+			BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
+
+		if (blocksize < PAGE_CACHE_SIZE) {
+			ext4_msg(sb, KERN_ERR, "can't mount with "
+				 "dioread_nolock if block size != PAGE_SIZE");
+			return 0;
+		}
+	}
 	return 1;
 }
 
@@ -2112,7 +2120,9 @@ static void ext4_orphan_cleanup(struct super_block *sb,
 				__func__, inode->i_ino, inode->i_size);
 			jbd_debug(2, "truncating inode %lu to %lld bytes\n",
 				  inode->i_ino, inode->i_size);
+			mutex_lock(&inode->i_mutex);
 			ext4_truncate(inode);
+			mutex_unlock(&inode->i_mutex);
 			nr_truncates++;
 		} else {
 			ext4_msg(sb, KERN_DEBUG,
@@ -3226,15 +3236,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 			clear_opt(sb, DELALLOC);
 	}
 
-	blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
-	if (test_opt(sb, DIOREAD_NOLOCK)) {
-		if (blocksize < PAGE_SIZE) {
-			ext4_msg(sb, KERN_ERR, "can't mount with "
-				 "dioread_nolock if block size != PAGE_SIZE");
-			goto failed_mount;
-		}
-	}
-
 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
 		(test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
 
@@ -3276,6 +3277,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	if (!ext4_feature_set_ok(sb, (sb->s_flags & MS_RDONLY)))
 		goto failed_mount;
 
+	blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
 	if (blocksize < EXT4_MIN_BLOCK_SIZE ||
 	    blocksize > EXT4_MAX_BLOCK_SIZE) {
 		ext4_msg(sb, KERN_ERR,
@@ -4506,7 +4508,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
 	}
 
 	ext4_setup_system_zone(sb);
-	if (sbi->s_journal == NULL)
+	if (sbi->s_journal == NULL && !(old_sb_flags & MS_RDONLY))
 		ext4_commit_super(sb, 1);
 
 #ifdef CONFIG_QUOTA
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index 6b1efb5..a392e32 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -258,16 +258,14 @@ static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
 	struct gfs2_meta_header *mh;
 	struct gfs2_trans *tr;
 
-	lock_buffer(bd->bd_bh);
-	gfs2_log_lock(sdp);
 	if (!list_empty(&bd->bd_list_tr))
-		goto out;
+		return;
 	tr = current->journal_info;
 	tr->tr_touched = 1;
 	tr->tr_num_buf++;
 	list_add(&bd->bd_list_tr, &tr->tr_list_buf);
 	if (!list_empty(&le->le_list))
-		goto out;
+		return;
 	set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
 	set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags);
 	gfs2_meta_check(sdp, bd->bd_bh);
@@ -278,9 +276,6 @@ static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
 	sdp->sd_log_num_buf++;
 	list_add(&le->le_list, &sdp->sd_log_le_buf);
 	tr->tr_num_buf_new++;
-out:
-	gfs2_log_unlock(sdp);
-	unlock_buffer(bd->bd_bh);
 }
 
 static void buf_lo_before_commit(struct gfs2_sbd *sdp)
@@ -611,11 +606,9 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
 	struct address_space *mapping = bd->bd_bh->b_page->mapping;
 	struct gfs2_inode *ip = GFS2_I(mapping->host);
 
-	lock_buffer(bd->bd_bh);
-	gfs2_log_lock(sdp);
 	if (tr) {
 		if (!list_empty(&bd->bd_list_tr))
-			goto out;
+			return;
 		tr->tr_touched = 1;
 		if (gfs2_is_jdata(ip)) {
 			tr->tr_num_buf++;
@@ -623,7 +616,7 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
 		}
 	}
 	if (!list_empty(&le->le_list))
-		goto out;
+		return;
 
 	set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
 	set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags);
@@ -635,9 +628,6 @@ static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
 	} else {
 		list_add_tail(&le->le_list, &sdp->sd_log_le_ordered);
 	}
-out:
-	gfs2_log_unlock(sdp);
-	unlock_buffer(bd->bd_bh);
 }
 
 static void gfs2_check_magic(struct buffer_head *bh)
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index 86ac75d..6ab2a77 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -145,14 +145,22 @@ void gfs2_trans_add_bh(struct gfs2_glock *gl, struct buffer_head *bh, int meta)
 	struct gfs2_sbd *sdp = gl->gl_sbd;
 	struct gfs2_bufdata *bd;
 
+	lock_buffer(bh);
+	gfs2_log_lock(sdp);
 	bd = bh->b_private;
 	if (bd)
 		gfs2_assert(sdp, bd->bd_gl == gl);
 	else {
+		gfs2_log_unlock(sdp);
+		unlock_buffer(bh);
 		gfs2_attach_bufdata(gl, bh, meta);
 		bd = bh->b_private;
+		lock_buffer(bh);
+		gfs2_log_lock(sdp);
 	}
 	lops_add(sdp, &bd->bd_le);
+	gfs2_log_unlock(sdp);
+	unlock_buffer(bh);
 }
 
 void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index ddcd354..de8b4cb 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -209,7 +209,8 @@ repeat:
 		if (!new_transaction)
 			goto alloc_transaction;
 		write_lock(&journal->j_state_lock);
-		if (!journal->j_running_transaction) {
+		if (!journal->j_running_transaction &&
+		    !journal->j_barrier_count) {
 			jbd2_get_transaction(journal, new_transaction);
 			new_transaction = NULL;
 		}
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 6784d1e..ffa8f12 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -375,14 +375,16 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
 			spin_unlock(&c->erase_completion_lock);
 
 			ret = jffs2_prealloc_raw_node_refs(c, jeb, 1);
-			if (ret)
-				return ret;
+
 			/* Just lock it again and continue. Nothing much can change because
 			   we hold c->alloc_sem anyway. In fact, it's not entirely clear why
 			   we hold c->erase_completion_lock in the majority of this function...
 			   but that's a question for another (more caffeine-rich) day. */
 			spin_lock(&c->erase_completion_lock);
 
+			if (ret)
+				return ret;
+
 			waste = jeb->free_size;
 			jffs2_link_node_ref(c, jeb,
 					    (jeb->offset + c->sector_size - waste) | REF_OBSOLETE,
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 7d75280..aa70035 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -574,6 +574,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 	struct udf_inode_info *iinfo = UDF_I(inode);
 	int goal = 0, pgoal = iinfo->i_location.logicalBlockNum;
 	int lastblock = 0;
+	bool isBeyondEOF;
 
 	*err = 0;
 	*new = 0;
@@ -653,7 +654,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 	/* Are we beyond EOF? */
 	if (etype == -1) {
 		int ret;
-
+		isBeyondEOF = 1;
 		if (count) {
 			if (c)
 				laarr[0] = laarr[1];
@@ -696,6 +697,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 		endnum = c + 1;
 		lastblock = 1;
 	} else {
+		isBeyondEOF = 0;
 		endnum = startnum = ((count > 2) ? 2 : count);
 
 		/* if the current extent is in position 0,
@@ -738,10 +740,13 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 				goal, err);
 		if (!newblocknum) {
 			brelse(prev_epos.bh);
+			brelse(cur_epos.bh);
+			brelse(next_epos.bh);
 			*err = -ENOSPC;
 			return 0;
 		}
-		iinfo->i_lenExtents += inode->i_sb->s_blocksize;
+		if (isBeyondEOF)
+			iinfo->i_lenExtents += inode->i_sb->s_blocksize;
 	}
 
 	/* if the extent the requsted block is located in contains multiple
@@ -768,6 +773,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 	udf_update_extents(inode, laarr, startnum, endnum, &prev_epos);
 
 	brelse(prev_epos.bh);
+	brelse(cur_epos.bh);
+	brelse(next_epos.bh);
 
 	newblock = udf_get_pblock(inode->i_sb, newblocknum,
 				iinfo->i_location.partitionReferenceNum, 0);
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 98ec36a..893420b 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -49,7 +49,6 @@ struct ceph_options {
 	struct ceph_entity_addr my_addr;
 	int mount_timeout;
 	int osd_idle_ttl;
-	int osd_timeout;
 	int osd_keepalive_timeout;
 
 	/*
@@ -69,7 +68,6 @@ struct ceph_options {
  * defaults
  */
 #define CEPH_MOUNT_TIMEOUT_DEFAULT  60
-#define CEPH_OSD_TIMEOUT_DEFAULT    60  /* seconds */
 #define CEPH_OSD_KEEPALIVE_DEFAULT  5
 #define CEPH_OSD_IDLE_TTL_DEFAULT    60
 
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index cf8d11e..2866783 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2708,7 +2708,7 @@ unsigned long ring_buffer_oldest_event_ts(struct ring_buffer *buffer, int cpu)
 	unsigned long flags;
 	struct ring_buffer_per_cpu *cpu_buffer;
 	struct buffer_page *bpage;
-	unsigned long ret;
+	unsigned long ret = 0;
 
 	if (!cpumask_test_cpu(cpu, buffer->cpumask))
 		return 0;
@@ -2723,7 +2723,8 @@ unsigned long ring_buffer_oldest_event_ts(struct ring_buffer *buffer, int cpu)
 		bpage = cpu_buffer->reader_page;
 	else
 		bpage = rb_set_head_page(cpu_buffer);
-	ret = bpage->page->time_stamp;
+	if (bpage)
+		ret = bpage->page->time_stamp;
 	raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags);
 
 	return ret;
@@ -3030,6 +3031,8 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
 	 * Splice the empty reader page into the list around the head.
 	 */
 	reader = rb_set_head_page(cpu_buffer);
+	if (!reader)
+		goto out;
 	cpu_buffer->reader_page->list.next = rb_list_head(reader->list.next);
 	cpu_buffer->reader_page->list.prev = reader->list.prev;
 
diff --git a/mm/compaction.c b/mm/compaction.c
index 459b0ab..3c8d7fe 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -736,7 +736,7 @@ static int compact_node(int nid)
 }
 
 /* Compact all nodes in the system */
-static int compact_nodes(void)
+static void compact_nodes(void)
 {
 	int nid;
 
@@ -745,8 +745,6 @@ static int compact_nodes(void)
 
 	for_each_online_node(nid)
 		compact_node(nid);
-
-	return COMPACT_COMPLETE;
 }
 
 /* The written value is actually unused, all memory is compacted */
@@ -757,7 +755,7 @@ int sysctl_compaction_handler(struct ctl_table *table, int write,
 			void __user *buffer, size_t *length, loff_t *ppos)
 {
 	if (write)
-		return compact_nodes();
+		compact_nodes();
 
 	return 0;
 }
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index f0e5306..caf15b6 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -950,6 +950,8 @@ int do_huge_pmd_wp_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		count_vm_event(THP_FAULT_FALLBACK);
 		ret = do_huge_pmd_wp_page_fallback(mm, vma, address,
 						   pmd, orig_pmd, page, haddr);
+		if (ret & VM_FAULT_OOM)
+			split_huge_page(page);
 		put_page(page);
 		goto out;
 	}
@@ -957,6 +959,7 @@ int do_huge_pmd_wp_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) {
 		put_page(new_page);
+		split_huge_page(page);
 		put_page(page);
 		ret |= VM_FAULT_OOM;
 		goto out;
diff --git a/mm/memory.c b/mm/memory.c
index 024b4af..2f42aab 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3494,6 +3494,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (unlikely(is_vm_hugetlb_page(vma)))
 		return hugetlb_fault(mm, vma, address, flags);
 
+retry:
 	pgd = pgd_offset(mm, address);
 	pud = pud_alloc(mm, pgd, address);
 	if (!pud)
@@ -3507,13 +3508,24 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 							  pmd, flags);
 	} else {
 		pmd_t orig_pmd = *pmd;
+		int ret;
+
 		barrier();
 		if (pmd_trans_huge(orig_pmd)) {
 			if (flags & FAULT_FLAG_WRITE &&
 			    !pmd_write(orig_pmd) &&
-			    !pmd_trans_splitting(orig_pmd))
-				return do_huge_pmd_wp_page(mm, vma, address,
-							   pmd, orig_pmd);
+			    !pmd_trans_splitting(orig_pmd)) {
+				ret = do_huge_pmd_wp_page(mm, vma, address, pmd,
+							  orig_pmd);
+				/*
+				 * If COW results in an oom, the huge pmd will
+				 * have been split, so retry the fault on the
+				 * pte for a smaller charge.
+				 */
+				if (unlikely(ret & VM_FAULT_OOM))
+					goto retry;
+				return ret;
+			}
 			return 0;
 		}
 	}
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 88a6d87..691b8ec 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5340,7 +5340,7 @@ static inline int pfn_to_bitidx(struct zone *zone, unsigned long pfn)
 	pfn &= (PAGES_PER_SECTION-1);
 	return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS;
 #else
-	pfn = pfn - zone->zone_start_pfn;
+	pfn = pfn - round_down(zone->zone_start_pfn, pageblock_nr_pages);
 	return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS;
 #endif /* CONFIG_SPARSEMEM */
 }
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 8e74e8c..b11448f 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -304,7 +304,6 @@ ceph_parse_options(char *options, const char *dev_name,
 
 	/* start with defaults */
 	opt->flags = CEPH_OPT_DEFAULT;
-	opt->osd_timeout = CEPH_OSD_TIMEOUT_DEFAULT;
 	opt->osd_keepalive_timeout = CEPH_OSD_KEEPALIVE_DEFAULT;
 	opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT; /* seconds */
 	opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT;   /* seconds */
@@ -390,7 +389,7 @@ ceph_parse_options(char *options, const char *dev_name,
 
 			/* misc */
 		case Opt_osdtimeout:
-			opt->osd_timeout = intval;
+			pr_warning("ignoring deprecated osdtimeout option\n");
 			break;
 		case Opt_osdkeepalivetimeout:
 			opt->osd_keepalive_timeout = intval;
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index aa71a67..ba1037c 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -506,6 +506,7 @@ static void reset_connection(struct ceph_connection *con)
 {
 	/* reset connection, out_queue, msg_ and connect_seq */
 	/* discard existing out_queue and msg_seq */
+	dout("reset_connection %p\n", con);
 	ceph_msg_remove_list(&con->out_queue);
 	ceph_msg_remove_list(&con->out_sent);
 
@@ -561,7 +562,7 @@ void ceph_con_open(struct ceph_connection *con,
 	mutex_lock(&con->mutex);
 	dout("con_open %p %s\n", con, ceph_pr_addr(&addr->in_addr));
 
-	BUG_ON(con->state != CON_STATE_CLOSED);
+	WARN_ON(con->state != CON_STATE_CLOSED);
 	con->state = CON_STATE_PREOPEN;
 
 	con->peer_name.type = (__u8) entity_type;
@@ -1502,13 +1503,6 @@ static int process_banner(struct ceph_connection *con)
 	return 0;
 }
 
-static void fail_protocol(struct ceph_connection *con)
-{
-	reset_connection(con);
-	BUG_ON(con->state != CON_STATE_NEGOTIATING);
-	con->state = CON_STATE_CLOSED;
-}
-
 static int process_connect(struct ceph_connection *con)
 {
 	u64 sup_feat = con->msgr->supported_features;
@@ -1526,7 +1520,7 @@ static int process_connect(struct ceph_connection *con)
 		       ceph_pr_addr(&con->peer_addr.in_addr),
 		       sup_feat, server_feat, server_feat & ~sup_feat);
 		con->error_msg = "missing required protocol features";
-		fail_protocol(con);
+		reset_connection(con);
 		return -1;
 
 	case CEPH_MSGR_TAG_BADPROTOVER:
@@ -1537,7 +1531,7 @@ static int process_connect(struct ceph_connection *con)
 		       le32_to_cpu(con->out_connect.protocol_version),
 		       le32_to_cpu(con->in_reply.protocol_version));
 		con->error_msg = "protocol version mismatch";
-		fail_protocol(con);
+		reset_connection(con);
 		return -1;
 
 	case CEPH_MSGR_TAG_BADAUTHORIZER:
@@ -1627,11 +1621,11 @@ static int process_connect(struct ceph_connection *con)
 			       ceph_pr_addr(&con->peer_addr.in_addr),
 			       req_feat, server_feat, req_feat & ~server_feat);
 			con->error_msg = "missing required protocol features";
-			fail_protocol(con);
+			reset_connection(con);
 			return -1;
 		}
 
-		BUG_ON(con->state != CON_STATE_NEGOTIATING);
+		WARN_ON(con->state != CON_STATE_NEGOTIATING);
 		con->state = CON_STATE_OPEN;
 
 		con->peer_global_seq = le32_to_cpu(con->in_reply.global_seq);
@@ -2128,7 +2122,6 @@ more:
 		if (ret < 0)
 			goto out;
 
-		BUG_ON(con->state != CON_STATE_CONNECTING);
 		con->state = CON_STATE_NEGOTIATING;
 
 		/*
@@ -2156,7 +2149,7 @@ more:
 		goto more;
 	}
 
-	BUG_ON(con->state != CON_STATE_OPEN);
+	WARN_ON(con->state != CON_STATE_OPEN);
 
 	if (con->in_base_pos < 0) {
 		/*
@@ -2258,6 +2251,35 @@ static void queue_con(struct ceph_connection *con)
 	}
 }
 
+static bool con_sock_closed(struct ceph_connection *con)
+{
+	if (!test_and_clear_bit(CON_FLAG_SOCK_CLOSED, &con->flags))
+		return false;
+
+#define CASE(x)								\
+	case CON_STATE_ ## x:						\
+		con->error_msg = "socket closed (con state " #x ")";	\
+		break;
+
+	switch (con->state) {
+	CASE(CLOSED);
+	CASE(PREOPEN);
+	CASE(CONNECTING);
+	CASE(NEGOTIATING);
+	CASE(OPEN);
+	CASE(STANDBY);
+	default:
+		pr_warning("%s con %p unrecognized state %lu\n",
+			__func__, con, con->state);
+		con->error_msg = "unrecognized con state";
+		BUG();
+		break;
+	}
+#undef CASE
+
+	return true;
+}
+
 /*
  * Do some work on a connection.  Drop a connection ref when we're done.
  */
@@ -2269,24 +2291,8 @@ static void con_work(struct work_struct *work)
 
 	mutex_lock(&con->mutex);
 restart:
-	if (test_and_clear_bit(CON_FLAG_SOCK_CLOSED, &con->flags)) {
-		switch (con->state) {
-		case CON_STATE_CONNECTING:
-			con->error_msg = "connection failed";
-			break;
-		case CON_STATE_NEGOTIATING:
-			con->error_msg = "negotiation failed";
-			break;
-		case CON_STATE_OPEN:
-			con->error_msg = "socket closed";
-			break;
-		default:
-			dout("unrecognized con state %d\n", (int)con->state);
-			con->error_msg = "unrecognized con state";
-			BUG();
-		}
+	if (con_sock_closed(con))
 		goto fault;
-	}
 
 	if (test_and_clear_bit(CON_FLAG_BACKOFF, &con->flags)) {
 		dout("con_work %p backing off\n", con);
@@ -2352,12 +2358,12 @@ fault:
 static void ceph_fault(struct ceph_connection *con)
 	__releases(con->mutex)
 {
-	pr_err("%s%lld %s %s\n", ENTITY_NAME(con->peer_name),
+	pr_warning("%s%lld %s %s\n", ENTITY_NAME(con->peer_name),
 	       ceph_pr_addr(&con->peer_addr.in_addr), con->error_msg);
 	dout("fault %p state %lu to peer %s\n",
 	     con, con->state, ceph_pr_addr(&con->peer_addr.in_addr));
 
-	BUG_ON(con->state != CON_STATE_CONNECTING &&
+	WARN_ON(con->state != CON_STATE_CONNECTING &&
 	       con->state != CON_STATE_NEGOTIATING &&
 	       con->state != CON_STATE_OPEN);
 
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index a79dbae..b16dfa2 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -221,6 +221,7 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
 	kref_init(&req->r_kref);
 	init_completion(&req->r_completion);
 	init_completion(&req->r_safe_completion);
+	RB_CLEAR_NODE(&req->r_node);
 	INIT_LIST_HEAD(&req->r_unsafe_item);
 	INIT_LIST_HEAD(&req->r_linger_item);
 	INIT_LIST_HEAD(&req->r_linger_osd);
@@ -461,6 +462,7 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
 {
 	struct ceph_osd_req_op ops[3];
 	struct ceph_osd_request *req;
+	int r;
 
 	ops[0].op = opcode;
 	ops[0].extent.truncate_seq = truncate_seq;
@@ -479,10 +481,12 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
 					 use_mempool,
 					 GFP_NOFS, NULL, NULL);
 	if (!req)
-		return NULL;
+		return ERR_PTR(-ENOMEM);
 
 	/* calculate max write size */
-	calc_layout(osdc, vino, layout, off, plen, req, ops);
+	r = calc_layout(osdc, vino, layout, off, plen, req, ops);
+	if (r < 0)
+		return ERR_PTR(r);
 	req->r_file_layout = *layout;  /* keep a copy */
 
 	/* in case it differs from natural (file) alignment that
@@ -575,7 +579,7 @@ static void __kick_osd_requests(struct ceph_osd_client *osdc,
 
 	dout("__kick_osd_requests osd%d\n", osd->o_osd);
 	err = __reset_osd(osdc, osd);
-	if (err == -EAGAIN)
+	if (err)
 		return;
 
 	list_for_each_entry(req, &osd->o_requests, r_osd_item) {
@@ -602,14 +606,6 @@ static void __kick_osd_requests(struct ceph_osd_client *osdc,
 	}
 }
 
-static void kick_osd_requests(struct ceph_osd_client *osdc,
-			      struct ceph_osd *kickosd)
-{
-	mutex_lock(&osdc->request_mutex);
-	__kick_osd_requests(osdc, kickosd);
-	mutex_unlock(&osdc->request_mutex);
-}
-
 /*
  * If the osd connection drops, we need to resubmit all requests.
  */
@@ -623,7 +619,9 @@ static void osd_reset(struct ceph_connection *con)
 	dout("osd_reset osd%d\n", osd->o_osd);
 	osdc = osd->o_osdc;
 	down_read(&osdc->map_sem);
-	kick_osd_requests(osdc, osd);
+	mutex_lock(&osdc->request_mutex);
+	__kick_osd_requests(osdc, osd);
+	mutex_unlock(&osdc->request_mutex);
 	send_queued(osdc);
 	up_read(&osdc->map_sem);
 }
@@ -642,6 +640,7 @@ static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum)
 	atomic_set(&osd->o_ref, 1);
 	osd->o_osdc = osdc;
 	osd->o_osd = onum;
+	RB_CLEAR_NODE(&osd->o_node);
 	INIT_LIST_HEAD(&osd->o_requests);
 	INIT_LIST_HEAD(&osd->o_linger_requests);
 	INIT_LIST_HEAD(&osd->o_osd_lru);
@@ -745,6 +744,7 @@ static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
 	if (list_empty(&osd->o_requests) &&
 	    list_empty(&osd->o_linger_requests)) {
 		__remove_osd(osdc, osd);
+		ret = -ENODEV;
 	} else if (memcmp(&osdc->osdmap->osd_addr[osd->o_osd],
 			  &osd->o_con.peer_addr,
 			  sizeof(osd->o_con.peer_addr)) == 0 &&
@@ -871,9 +871,9 @@ static void __unregister_request(struct ceph_osd_client *osdc,
 			req->r_osd = NULL;
 	}
 
+	list_del_init(&req->r_req_lru_item);
 	ceph_osdc_put_request(req);
 
-	list_del_init(&req->r_req_lru_item);
 	if (osdc->num_requests == 0) {
 		dout(" no requests, canceling timeout\n");
 		__cancel_osd_timeout(osdc);
@@ -905,8 +905,8 @@ static void __unregister_linger_request(struct ceph_osd_client *osdc,
 					struct ceph_osd_request *req)
 {
 	dout("__unregister_linger_request %p\n", req);
+	list_del_init(&req->r_linger_item);
 	if (req->r_osd) {
-		list_del_init(&req->r_linger_item);
 		list_del_init(&req->r_linger_osd);
 
 		if (list_empty(&req->r_osd->o_requests) &&
@@ -1085,12 +1085,10 @@ static void handle_timeout(struct work_struct *work)
 {
 	struct ceph_osd_client *osdc =
 		container_of(work, struct ceph_osd_client, timeout_work.work);
-	struct ceph_osd_request *req, *last_req = NULL;
+	struct ceph_osd_request *req;
 	struct ceph_osd *osd;
-	unsigned long timeout = osdc->client->options->osd_timeout * HZ;
 	unsigned long keepalive =
 		osdc->client->options->osd_keepalive_timeout * HZ;
-	unsigned long last_stamp = 0;
 	struct list_head slow_osds;
 	dout("timeout\n");
 	down_read(&osdc->map_sem);
@@ -1100,37 +1098,6 @@ static void handle_timeout(struct work_struct *work)
 	mutex_lock(&osdc->request_mutex);
 
 	/*
-	 * reset osds that appear to be _really_ unresponsive.  this
-	 * is a failsafe measure.. we really shouldn't be getting to
-	 * this point if the system is working properly.  the monitors
-	 * should mark the osd as failed and we should find out about
-	 * it from an updated osd map.
-	 */
-	while (timeout && !list_empty(&osdc->req_lru)) {
-		req = list_entry(osdc->req_lru.next, struct ceph_osd_request,
-				 r_req_lru_item);
-
-		/* hasn't been long enough since we sent it? */
-		if (time_before(jiffies, req->r_stamp + timeout))
-			break;
-
-		/* hasn't been long enough since it was acked? */
-		if (req->r_request->ack_stamp == 0 ||
-		    time_before(jiffies, req->r_request->ack_stamp + timeout))
-			break;
-
-		BUG_ON(req == last_req && req->r_stamp == last_stamp);
-		last_req = req;
-		last_stamp = req->r_stamp;
-
-		osd = req->r_osd;
-		BUG_ON(!osd);
-		pr_warning(" tid %llu timed out on osd%d, will reset osd\n",
-			   req->r_tid, osd->o_osd);
-		__kick_osd_requests(osdc, osd);
-	}
-
-	/*
 	 * ping osds that are a bit slow.  this ensures that if there
 	 * is a break in the TCP connection we will notice, and reopen
 	 * a connection with that osd (from the fault callback).
@@ -1301,7 +1268,7 @@ static void reset_changed_osds(struct ceph_osd_client *osdc)
  * Requeue requests whose mapping to an OSD has changed.  If requests map to
  * no osd, request a new map.
  *
- * Caller should hold map_sem for read and request_mutex.
+ * Caller should hold map_sem for read.
  */
 static void kick_requests(struct ceph_osd_client *osdc, int force_resend)
 {
@@ -1315,6 +1282,24 @@ static void kick_requests(struct ceph_osd_client *osdc, int force_resend)
 	for (p = rb_first(&osdc->requests); p; ) {
 		req = rb_entry(p, struct ceph_osd_request, r_node);
 		p = rb_next(p);
+
+		/*
+		 * For linger requests that have not yet been
+		 * registered, move them to the linger list; they'll
+		 * be sent to the osd in the loop below.  Unregister
+		 * the request before re-registering it as a linger
+		 * request to ensure the __map_request() below
+		 * will decide it needs to be sent.
+		 */
+		if (req->r_linger && list_empty(&req->r_linger_item)) {
+			dout("%p tid %llu restart on osd%d\n",
+			     req, req->r_tid,
+			     req->r_osd ? req->r_osd->o_osd : -1);
+			__unregister_request(osdc, req);
+			__register_linger_request(osdc, req);
+			continue;
+		}
+
 		err = __map_request(osdc, req, force_resend);
 		if (err < 0)
 			continue;  /* error */
@@ -1329,17 +1314,6 @@ static void kick_requests(struct ceph_osd_client *osdc, int force_resend)
 				req->r_flags |= CEPH_OSD_FLAG_RETRY;
 			}
 		}
-		if (req->r_linger && list_empty(&req->r_linger_item)) {
-			/*
-			 * register as a linger so that we will
-			 * re-submit below and get a new tid
-			 */
-			dout("%p tid %llu restart on osd%d\n",
-			     req, req->r_tid,
-			     req->r_osd ? req->r_osd->o_osd : -1);
-			__register_linger_request(osdc, req);
-			__unregister_request(osdc, req);
-		}
 	}
 
 	list_for_each_entry_safe(req, nreq, &osdc->req_linger,
@@ -1347,6 +1321,7 @@ static void kick_requests(struct ceph_osd_client *osdc, int force_resend)
 		dout("linger req=%p req->r_osd=%p\n", req, req->r_osd);
 
 		err = __map_request(osdc, req, force_resend);
+		dout("__map_request returned %d\n", err);
 		if (err == 0)
 			continue;  /* no change and no osd was specified */
 		if (err < 0)
@@ -1359,8 +1334,8 @@ static void kick_requests(struct ceph_osd_client *osdc, int force_resend)
 
 		dout("kicking lingering %p tid %llu osd%d\n", req, req->r_tid,
 		     req->r_osd ? req->r_osd->o_osd : -1);
-		__unregister_linger_request(osdc, req);
 		__register_request(osdc, req);
+		__unregister_linger_request(osdc, req);
 	}
 	mutex_unlock(&osdc->request_mutex);
 
@@ -1368,6 +1343,7 @@ static void kick_requests(struct ceph_osd_client *osdc, int force_resend)
 		dout("%d requests for down osds, need new map\n", needmap);
 		ceph_monc_request_next_osdmap(&osdc->client->monc);
 	}
+	reset_changed_osds(osdc);
 }
 
 
@@ -1424,7 +1400,6 @@ void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg)
 				osdc->osdmap = newmap;
 			}
 			kick_requests(osdc, 0);
-			reset_changed_osds(osdc);
 		} else {
 			dout("ignoring incremental map %u len %d\n",
 			     epoch, maplen);
@@ -1594,6 +1569,7 @@ int ceph_osdc_create_event(struct ceph_osd_client *osdc,
 	event->data = data;
 	event->osdc = osdc;
 	INIT_LIST_HEAD(&event->osd_node);
+	RB_CLEAR_NODE(&event->node);
 	kref_init(&event->kref);   /* one ref for us */
 	kref_get(&event->kref);    /* one ref for the caller */
 	init_completion(&event->completion);
@@ -1925,8 +1901,8 @@ int ceph_osdc_readpages(struct ceph_osd_client *osdc,
 				    CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
 				    NULL, 0, truncate_seq, truncate_size, NULL,
 				    false, 1, page_align);
-	if (!req)
-		return -ENOMEM;
+	if (IS_ERR(req))
+		return PTR_ERR(req);
 
 	/* it may be a short read due to an object boundary */
 	req->r_pages = pages;
@@ -1968,8 +1944,8 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
 				    snapc, do_sync,
 				    truncate_seq, truncate_size, mtime,
 				    nofail, 1, page_align);
-	if (!req)
-		return -ENOMEM;
+	if (IS_ERR(req))
+		return PTR_ERR(req);
 
 	/* it may be a short write due to an object boundary */
 	req->r_pages = pages;
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 430076e..7fbe210 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -613,10 +613,12 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
 	ceph_decode_32_safe(p, end, max, bad);
 	while (max--) {
 		ceph_decode_need(p, end, 4 + 1 + sizeof(pi->v), bad);
+		err = -ENOMEM;
 		pi = kzalloc(sizeof(*pi), GFP_NOFS);
 		if (!pi)
 			goto bad;
 		pi->id = ceph_decode_32(p);
+		err = -EINVAL;
 		ev = ceph_decode_8(p); /* encoding version */
 		if (ev > CEPH_PG_POOL_VERSION) {
 			pr_warning("got unknown v %d > %d of ceph_pg_pool\n",
@@ -632,8 +634,13 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
 		__insert_pg_pool(&map->pg_pools, pi);
 	}
 
-	if (version >= 5 && __decode_pool_names(p, end, map) < 0)
-		goto bad;
+	if (version >= 5) {
+		err = __decode_pool_names(p, end, map);
+		if (err < 0) {
+			dout("fail to decode pool names");
+			goto bad;
+		}
+	}
 
 	ceph_decode_32_safe(p, end, map->pool_max, bad);
 
@@ -713,7 +720,7 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end)
 	return map;
 
 bad:
-	dout("osdmap_decode fail\n");
+	dout("osdmap_decode fail err %d\n", err);
 	ceph_osdmap_destroy(map);
 	return ERR_PTR(err);
 }
@@ -807,6 +814,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
 		if (ev > CEPH_PG_POOL_VERSION) {
 			pr_warning("got unknown v %d > %d of ceph_pg_pool\n",
 				   ev, CEPH_PG_POOL_VERSION);
+			err = -EINVAL;
 			goto bad;
 		}
 		pi = __lookup_pg_pool(&map->pg_pools, pool);
@@ -823,8 +831,11 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
 		if (err < 0)
 			goto bad;
 	}
-	if (version >= 5 && __decode_pool_names(p, end, map) < 0)
-		goto bad;
+	if (version >= 5) {
+		err = __decode_pool_names(p, end, map);
+		if (err < 0)
+			goto bad;
+	}
 
 	/* old_pool */
 	ceph_decode_32_safe(p, end, len, bad);
@@ -900,15 +911,13 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
 			(void) __remove_pg_mapping(&map->pg_temp, pgid);
 
 			/* insert */
-			if (pglen > (UINT_MAX - sizeof(*pg)) / sizeof(u32)) {
-				err = -EINVAL;
+			err = -EINVAL;
+			if (pglen > (UINT_MAX - sizeof(*pg)) / sizeof(u32))
 				goto bad;
-			}
+			err = -ENOMEM;
 			pg = kmalloc(sizeof(*pg) + sizeof(u32)*pglen, GFP_NOFS);
-			if (!pg) {
-				err = -ENOMEM;
+			if (!pg)
 				goto bad;
-			}
 			pg->pgid = pgid;
 			pg->len = pglen;
 			for (j = 0; j < pglen; j++)
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 7c51bae..50191a3 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -664,8 +664,8 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
 	       "IBSS networks with same SSID (merge)\n", sdata->name);
 
-	ieee80211_request_internal_scan(sdata,
-			ifibss->ssid, ifibss->ssid_len, NULL);
+	ieee80211_request_ibss_scan(sdata, ifibss->ssid, ifibss->ssid_len,
+				    NULL);
 }
 
 static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
@@ -772,9 +772,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
 		       "join\n", sdata->name);
 
-		ieee80211_request_internal_scan(sdata,
-				ifibss->ssid, ifibss->ssid_len,
-				ifibss->fixed_channel ? ifibss->channel : NULL);
+		ieee80211_request_ibss_scan(sdata, ifibss->ssid,
+					    ifibss->ssid_len, chan);
 	} else {
 		int interval = IEEE80211_SCAN_INTERVAL;
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 498e87b..f8b5e75 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1233,9 +1233,9 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 
 /* scan/BSS handling */
 void ieee80211_scan_work(struct work_struct *work);
-int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
-				    const u8 *ssid, u8 ssid_len,
-				    struct ieee80211_channel *chan);
+int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
+				const u8 *ssid, u8 ssid_len,
+				struct ieee80211_channel *chan);
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 			   struct cfg80211_scan_request *req);
 void ieee80211_scan_cancel(struct ieee80211_local *local);
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index c70e176..e95d494 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -761,9 +761,9 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 	return res;
 }
 
-int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
-				    const u8 *ssid, u8 ssid_len,
-				    struct ieee80211_channel *chan)
+int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
+				const u8 *ssid, u8 ssid_len,
+				struct ieee80211_channel *chan)
 {
 	struct ieee80211_local *local = sdata->local;
 	int ret = -EBUSY;
@@ -777,22 +777,36 @@ int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
 
 	/* fill internal scan request */
 	if (!chan) {
-		int i, nchan = 0;
+		int i, max_n;
+		int n_ch = 0;
 
 		for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 			if (!local->hw.wiphy->bands[band])
 				continue;
-			for (i = 0;
-			     i < local->hw.wiphy->bands[band]->n_channels;
-			     i++) {
-				local->int_scan_req->channels[nchan] =
+
+			max_n = local->hw.wiphy->bands[band]->n_channels;
+			for (i = 0; i < max_n; i++) {
+				struct ieee80211_channel *tmp_ch =
 				    &local->hw.wiphy->bands[band]->channels[i];
-				nchan++;
+
+				if (tmp_ch->flags & (IEEE80211_CHAN_NO_IBSS |
+						     IEEE80211_CHAN_DISABLED))
+					continue;
+
+				local->int_scan_req->channels[n_ch] = tmp_ch;
+				n_ch++;
 			}
 		}
 
-		local->int_scan_req->n_channels = nchan;
+		if (WARN_ON_ONCE(n_ch == 0))
+			goto unlock;
+
+		local->int_scan_req->n_channels = n_ch;
 	} else {
+		if (WARN_ON_ONCE(chan->flags & (IEEE80211_CHAN_NO_IBSS |
+						IEEE80211_CHAN_DISABLED)))
+			goto unlock;
+
 		local->int_scan_req->channels[0] = chan;
 		local->int_scan_req->n_channels = 1;
 	}
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 6d25d77..e2e0e0b 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -844,7 +844,7 @@ void sta_info_init(struct ieee80211_local *local)
 
 void sta_info_stop(struct ieee80211_local *local)
 {
-	del_timer(&local->sta_cleanup);
+	del_timer_sync(&local->sta_cleanup);
 	sta_info_flush(local, NULL);
 }
 
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 57f2731..a28a211 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -236,7 +236,7 @@ static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event)
 	spin_lock(&sn->rpc_client_lock);
 	list_for_each_entry(clnt, &sn->all_clients, cl_clients) {
 		if (clnt->cl_program->pipe_dir_name == NULL)
-			break;
+			continue;
 		if (rpc_clnt_skip_event(clnt, event))
 			continue;
 		if (atomic_inc_not_zero(&clnt->cl_count) == 0)
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index faa078f..b8bda44 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -1157,14 +1157,19 @@ static void rpc_kill_sb(struct super_block *sb)
 	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
 
 	mutex_lock(&sn->pipefs_sb_lock);
+	if (sn->pipefs_sb != sb) {
+		mutex_unlock(&sn->pipefs_sb_lock);
+		goto out;
+	}
 	sn->pipefs_sb = NULL;
 	mutex_unlock(&sn->pipefs_sb_lock);
-	put_net(net);
 	dprintk("RPC:	sending pipefs UMOUNT notification for net %p%s\n", net,
 								NET_NAME(net));
 	blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
 					   RPC_PIPEFS_UMOUNT,
 					   sb);
+	put_net(net);
+out:
 	kill_litter_super(sb);
 }
 
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index eda32ae..85b9235 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -915,16 +915,35 @@ struct rpc_task *rpc_new_task(const struct rpc_task_setup *setup_data)
 	return task;
 }
 
+/*
+ * rpc_free_task - release rpc task and perform cleanups
+ *
+ * Note that we free up the rpc_task _after_ rpc_release_calldata()
+ * in order to work around a workqueue dependency issue.
+ *
+ * Tejun Heo states:
+ * "Workqueue currently considers two work items to be the same if they're
+ * on the same address and won't execute them concurrently - ie. it
+ * makes a work item which is queued again while being executed wait
+ * for the previous execution to complete.
+ *
+ * If a work function frees the work item, and then waits for an event
+ * which should be performed by another work item and *that* work item
+ * recycles the freed work item, it can create a false dependency loop.
+ * There really is no reliable way to detect this short of verifying
+ * every memory free."
+ *
+ */
 static void rpc_free_task(struct rpc_task *task)
 {
-	const struct rpc_call_ops *tk_ops = task->tk_ops;
-	void *calldata = task->tk_calldata;
+	unsigned short tk_flags = task->tk_flags;
+
+	rpc_release_calldata(task->tk_ops, task->tk_calldata);
 
-	if (task->tk_flags & RPC_TASK_DYNAMIC) {
+	if (tk_flags & RPC_TASK_DYNAMIC) {
 		dprintk("RPC: %5u freeing task\n", task->tk_pid);
 		mempool_free(task, rpc_task_mempool);
 	}
-	rpc_release_calldata(tk_ops, calldata);
 }
 
 static void rpc_async_release(struct work_struct *work)
@@ -934,8 +953,7 @@ static void rpc_async_release(struct work_struct *work)
 
 static void rpc_release_resources_task(struct rpc_task *task)
 {
-	if (task->tk_rqstp)
-		xprt_release(task);
+	xprt_release(task);
 	if (task->tk_msg.rpc_cred) {
 		put_rpccred(task->tk_msg.rpc_cred);
 		task->tk_msg.rpc_cred = NULL;
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 176a24f..feea474 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1139,10 +1139,18 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt)
 void xprt_release(struct rpc_task *task)
 {
 	struct rpc_xprt	*xprt;
-	struct rpc_rqst	*req;
+	struct rpc_rqst	*req = task->tk_rqstp;
 
-	if (!(req = task->tk_rqstp))
+	if (req == NULL) {
+		if (task->tk_client) {
+			rcu_read_lock();
+			xprt = rcu_dereference(task->tk_client->cl_xprt);
+			if (xprt->snd_task == task)
+				xprt_release_write(xprt, task);
+			rcu_read_unlock();
+		}
 		return;
+	}
 
 	xprt = req->rq_xprt;
 	if (task->tk_ops->rpc_count_stats != NULL)
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 48d7c0a..bd3ba88 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -18,6 +18,7 @@
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/gpio.h>
 
 #include <sound/ac97_codec.h>
 #include <sound/pxa2xx-lib.h>
@@ -148,6 +149,8 @@ static inline void pxa_ac97_warm_pxa27x(void)
 
 static inline void pxa_ac97_cold_pxa27x(void)
 {
+	unsigned int timeout;
+
 	GCR &=  GCR_COLD_RST;  /* clear everything but nCRST */
 	GCR &= ~GCR_COLD_RST;  /* then assert nCRST */
 
@@ -157,8 +160,10 @@ static inline void pxa_ac97_cold_pxa27x(void)
 	clk_enable(ac97conf_clk);
 	udelay(5);
 	clk_disable(ac97conf_clk);
-	GCR = GCR_COLD_RST;
-	udelay(50);
+	GCR = GCR_COLD_RST | GCR_WARM_RST;
+	timeout = 100;     /* wait for the codec-ready bit to be set */
+	while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
+		mdelay(1);
 }
 #endif
 
@@ -340,8 +345,21 @@ int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev)
 	}
 
 	if (cpu_is_pxa27x()) {
-		/* Use GPIO 113 as AC97 Reset on Bulverde */
+		/*
+		 * This gpio is needed for a work-around to a bug in the ac97
+		 * controller during warm reset.  The direction and level is set
+		 * here so that it is an output driven high when switching from
+		 * AC97_nRESET alt function to generic gpio.
+		 */
+		ret = gpio_request_one(reset_gpio, GPIOF_OUT_INIT_HIGH,
+				       "pxa27x ac97 reset");
+		if (ret < 0) {
+			pr_err("%s: gpio_request_one() failed: %d\n",
+			       __func__, ret);
+			goto err_conf;
+		}
 		pxa27x_assert_ac97reset(reset_gpio, 0);
+
 		ac97conf_clk = clk_get(&dev->dev, "AC97CONFCLK");
 		if (IS_ERR(ac97conf_clk)) {
 			ret = PTR_ERR(ac97conf_clk);
@@ -384,6 +402,8 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_probe);
 
 void pxa2xx_ac97_hw_remove(struct platform_device *dev)
 {
+	if (cpu_is_pxa27x())
+		gpio_free(reset_gpio);
 	GCR |= GCR_ACLINK_OFF;
 	free_irq(IRQ_AC97, NULL);
 	if (ac97conf_clk) {
diff --git a/sound/soc/codecs/sigmadsp.c b/sound/soc/codecs/sigmadsp.c
index 5be42bf..4068f24 100644
--- a/sound/soc/codecs/sigmadsp.c
+++ b/sound/soc/codecs/sigmadsp.c
@@ -225,7 +225,7 @@ EXPORT_SYMBOL(process_sigma_firmware);
 static int sigma_action_write_regmap(void *control_data,
 	const struct sigma_action *sa, size_t len)
 {
-	return regmap_raw_write(control_data, le16_to_cpu(sa->addr),
+	return regmap_raw_write(control_data, be16_to_cpu(sa->addr),
 		sa->payload, len - 2);
 }
 
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index ae6f26f..bb9f070 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -190,9 +190,9 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue)
 
 	ret = wm2000_read(i2c, WM2000_REG_SPEECH_CLARITY);
 	if (wm2000->speech_clarity)
-		ret &= ~WM2000_SPEECH_CLARITY;
-	else
 		ret |= WM2000_SPEECH_CLARITY;
+	else
+		ret &= ~WM2000_SPEECH_CLARITY;
 	wm2000_write(i2c, WM2000_REG_SPEECH_CLARITY, ret);
 
 	wm2000_write(i2c, WM2000_REG_SYS_START0, 0x33);
diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c
index c8bff6d..86b84a1 100644
--- a/sound/soc/codecs/wm2200.c
+++ b/sound/soc/codecs/wm2200.c
@@ -1380,15 +1380,9 @@ static int wm2200_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 	case SND_SOC_DAIFMT_DSP_A:
 		fmt_val = 0;
 		break;
-	case SND_SOC_DAIFMT_DSP_B:
-		fmt_val = 1;
-		break;
 	case SND_SOC_DAIFMT_I2S:
 		fmt_val = 2;
 		break;
-	case SND_SOC_DAIFMT_LEFT_J:
-		fmt_val = 3;
-		break;
 	default:
 		dev_err(codec->dev, "Unsupported DAI format %d\n",
 			fmt & SND_SOC_DAIFMT_FORMAT_MASK);
@@ -1440,7 +1434,7 @@ static int wm2200_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 			    WM2200_AIF1TX_LRCLK_MSTR | WM2200_AIF1TX_LRCLK_INV,
 			    lrclk);
 	snd_soc_update_bits(codec, WM2200_AUDIO_IF_1_5,
-			    WM2200_AIF1_FMT_MASK << 1, fmt_val << 1);
+			    WM2200_AIF1_FMT_MASK, fmt_val);
 
 	return 0;
 }
diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index b9c185c..a8d03ab 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -1296,15 +1296,9 @@ static int wm5100_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 	case SND_SOC_DAIFMT_DSP_A:
 		mask = 0;
 		break;
-	case SND_SOC_DAIFMT_DSP_B:
-		mask = 1;
-		break;
 	case SND_SOC_DAIFMT_I2S:
 		mask = 2;
 		break;
-	case SND_SOC_DAIFMT_LEFT_J:
-		mask = 3;
-		break;
 	default:
 		dev_err(codec->dev, "Unsupported DAI format %d\n",
 			fmt & SND_SOC_DAIFMT_FORMAT_MASK);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 9739b53..71b9036 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -693,8 +693,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 	int r;
 	gfn_t base_gfn;
 	unsigned long npages;
-	unsigned long i;
-	struct kvm_memory_slot *memslot;
+	struct kvm_memory_slot *memslot, *slot;
 	struct kvm_memory_slot old, new;
 	struct kvm_memslots *slots, *old_memslots;
 
@@ -741,13 +740,11 @@ int __kvm_set_memory_region(struct kvm *kvm,
 
 	/* Check for overlaps */
 	r = -EEXIST;
-	for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
-		struct kvm_memory_slot *s = &kvm->memslots->memslots[i];
-
-		if (s == memslot || !s->npages)
+	kvm_for_each_memslot(slot, kvm->memslots) {
+		if (slot->id >= KVM_MEMORY_SLOTS || slot == memslot)
 			continue;
-		if (!((base_gfn + npages <= s->base_gfn) ||
-		      (base_gfn >= s->base_gfn + s->npages)))
+		if (!((base_gfn + npages <= slot->base_gfn) ||
+		      (base_gfn >= slot->base_gfn + slot->npages)))
 			goto out_free;
 	}
 