269 files changed, 2518 insertions, 1382 deletions

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index f40acef80269..a6977e12d574 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -39,6 +39,7 @@
 #include <linux/ipmi.h>
 #include <linux/device.h>
 #include <linux/pnp.h>
+#include <linux/spinlock.h>
 
 MODULE_AUTHOR("Zhao Yakui");
 MODULE_DESCRIPTION("ACPI IPMI Opregion driver");
@@ -57,7 +58,7 @@ struct acpi_ipmi_device {
         struct list_head head;
         /* the IPMI request message list */
         struct list_head tx_msg_list;
-        struct mutex    tx_msg_lock;
+        spinlock_t      tx_msg_lock;
         acpi_handle handle;
         struct pnp_dev *pnp_dev;
         ipmi_user_t     user_interface;
@@ -147,6 +148,7 @@ static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg,
         struct kernel_ipmi_msg *msg;
         struct acpi_ipmi_buffer *buffer;
         struct acpi_ipmi_device *device;
+        unsigned long flags;
 
         msg = &tx_msg->tx_message;
         /*
@@ -177,10 +179,10 @@ static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg,
 
         /* Get the msgid */
         device = tx_msg->device;
-        mutex_lock(&device->tx_msg_lock);
+        spin_lock_irqsave(&device->tx_msg_lock, flags);
         device->curr_msgid++;
         tx_msg->tx_msgid = device->curr_msgid;
-        mutex_unlock(&device->tx_msg_lock);
+        spin_unlock_irqrestore(&device->tx_msg_lock, flags);
 }
 
 static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
@@ -242,6 +244,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
         int msg_found = 0;
         struct acpi_ipmi_msg *tx_msg;
         struct pnp_dev *pnp_dev = ipmi_device->pnp_dev;
+        unsigned long flags;
 
         if (msg->user != ipmi_device->user_interface) {
                 dev_warn(&pnp_dev->dev, "Unexpected response is returned. "
@@ -250,7 +253,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
                 ipmi_free_recv_msg(msg);
                 return;
         }
-        mutex_lock(&ipmi_device->tx_msg_lock);
+        spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
         list_for_each_entry(tx_msg, &ipmi_device->tx_msg_list, head) {
                 if (msg->msgid == tx_msg->tx_msgid) {
                         msg_found = 1;
@@ -258,7 +261,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
                 }
         }
 
-        mutex_unlock(&ipmi_device->tx_msg_lock);
+        spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
         if (!msg_found) {
                 dev_warn(&pnp_dev->dev, "Unexpected response (msg id %ld) is "
                         "returned.\n", msg->msgid);
@@ -378,6 +381,7 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
         struct acpi_ipmi_device *ipmi_device = handler_context;
         int err, rem_time;
         acpi_status status;
+        unsigned long flags;
         /*
          * IPMI opregion message.
          * IPMI message is firstly written to the BMC and system software
@@ -395,9 +399,9 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
                 return AE_NO_MEMORY;
 
         acpi_format_ipmi_msg(tx_msg, address, value);
-        mutex_lock(&ipmi_device->tx_msg_lock);
+        spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
         list_add_tail(&tx_msg->head, &ipmi_device->tx_msg_list);
-        mutex_unlock(&ipmi_device->tx_msg_lock);
+        spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
         err = ipmi_request_settime(ipmi_device->user_interface,
                                         &tx_msg->addr,
                                         tx_msg->tx_msgid,
@@ -413,9 +417,9 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
         status = AE_OK;
 
 end_label:
-        mutex_lock(&ipmi_device->tx_msg_lock);
+        spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
         list_del(&tx_msg->head);
-        mutex_unlock(&ipmi_device->tx_msg_lock);
+        spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
         kfree(tx_msg);
         return status;
 }
@@ -457,7 +461,7 @@ static void acpi_add_ipmi_device(struct acpi_ipmi_device *ipmi_device)
 
         INIT_LIST_HEAD(&ipmi_device->head);
 
-        mutex_init(&ipmi_device->tx_msg_lock);
+        spin_lock_init(&ipmi_device->tx_msg_lock);
         INIT_LIST_HEAD(&ipmi_device->tx_msg_list);
         ipmi_install_space_handler(ipmi_device);
 
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index fbdb82e70d10..611ce9061dc5 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1121,7 +1121,7 @@ int acpi_bus_register_driver(struct acpi_driver *driver)
 EXPORT_SYMBOL(acpi_bus_register_driver);
 
 /**
- * acpi_bus_unregister_driver - unregisters a driver with the APIC bus
+ * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus
  * @driver: driver to unregister
  *
  * Unregisters a driver with the ACPI bus.  Searches the namespace for all
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 958ba2a420c3..97f4acb54ad6 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -2,7 +2,7 @@
  *  sata_promise.c - Promise SATA
  *
  *  Maintained by:  Tejun Heo <tj@kernel.org>
- *                  Mikael Pettersson <mikpe@it.uu.se>
+ *                  Mikael Pettersson
  *                  Please ALWAYS copy linux-ide@vger.kernel.org
  *                  on emails.
  *
diff --git a/drivers/base/core.c b/drivers/base/core.c
index c7cfadcf6752..34abf4d8a45f 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2017,7 +2017,7 @@ EXPORT_SYMBOL_GPL(device_move);
  */
 void device_shutdown(void)
 {
-        struct device *dev;
+        struct device *dev, *parent;
 
         spin_lock(&devices_kset->list_lock);
         /*
@@ -2034,7 +2034,7 @@ void device_shutdown(void)
                  * prevent it from being freed because parent's
                  * lock is to be held
                  */
-                get_device(dev->parent);
+                parent = get_device(dev->parent);
                 get_device(dev);
                 /*
                  * Make sure the device is off the kset list, in the
@@ -2044,8 +2044,8 @@ void device_shutdown(void)
                 spin_unlock(&devices_kset->list_lock);
 
                 /* hold lock to avoid race with probe/release */
-                if (dev->parent)
-                        device_lock(dev->parent);
+                if (parent)
+                        device_lock(parent);
                 device_lock(dev);
 
                 /* Don't allow any more runtime suspends */
@@ -2063,11 +2063,11 @@ void device_shutdown(void)
                 }
 
                 device_unlock(dev);
-                if (dev->parent)
-                        device_unlock(dev->parent);
+                if (parent)
+                        device_unlock(parent);
 
                 put_device(dev);
-                put_device(dev->parent);
+                put_device(parent);
 
                 spin_lock(&devices_kset->list_lock);
         }
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index d2d95ff5353b..edfa2515bc86 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1189,6 +1189,7 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
         int err;
         u32 cp;
 
+        memset(&arg64, 0, sizeof(arg64));
         err = 0;
         err |=
             copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 639d26b90b91..2b9440384536 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -1193,6 +1193,7 @@ out_passthru:
                 ida_pci_info_struct pciinfo;
 
                 if (!arg) return -EINVAL;
+                memset(&pciinfo, 0, sizeof(pciinfo));
                 pciinfo.bus = host->pci_dev->bus->number;
                 pciinfo.dev_fn = host->pci_dev->devfn;
                 pciinfo.board_id = host->board_id;
diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c
index 7a7929ba2658..06189e55b4e5 100644
--- a/drivers/char/tpm/xen-tpmfront.c
+++ b/drivers/char/tpm/xen-tpmfront.c
@@ -142,32 +142,6 @@ static int vtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
         return length;
 }
 
-ssize_t tpm_show_locality(struct device *dev, struct device_attribute *attr,
-                          char *buf)
-{
-        struct tpm_chip *chip = dev_get_drvdata(dev);
-        struct tpm_private *priv = TPM_VPRIV(chip);
-        u8 locality = priv->shr->locality;
-
-        return sprintf(buf, "%d\n", locality);
-}
-
-ssize_t tpm_store_locality(struct device *dev, struct device_attribute *attr,
-                        const char *buf, size_t len)
-{
-        struct tpm_chip *chip = dev_get_drvdata(dev);
-        struct tpm_private *priv = TPM_VPRIV(chip);
-        u8 val;
-
-        int rv = kstrtou8(buf, 0, &val);
-        if (rv)
-                return rv;
-
-        priv->shr->locality = val;
-
-        return len;
-}
-
 static const struct file_operations vtpm_ops = {
         .owner = THIS_MODULE,
         .llseek = no_llseek,
@@ -188,8 +162,6 @@ static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
 static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
 static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
 static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-static DEVICE_ATTR(locality, S_IRUGO | S_IWUSR, tpm_show_locality,
-                tpm_store_locality);
 
 static struct attribute *vtpm_attrs[] = {
         &dev_attr_pubek.attr,
@@ -202,7 +174,6 @@ static struct attribute *vtpm_attrs[] = {
         &dev_attr_cancel.attr,
         &dev_attr_durations.attr,
         &dev_attr_timeouts.attr,
-        &dev_attr_locality.attr,
         NULL,
 };
 
@@ -210,8 +181,6 @@ static struct attribute_group vtpm_attr_grp = {
         .attrs = vtpm_attrs,
 };
 
-#define TPM_LONG_TIMEOUT   (10 * 60 * HZ)
-
 static const struct tpm_vendor_specific tpm_vtpm = {
         .status = vtpm_status,
         .recv = vtpm_recv,
@@ -224,11 +193,6 @@ static const struct tpm_vendor_specific tpm_vtpm = {
         .miscdev = {
                 .fops = &vtpm_ops,
         },
-        .duration = {
-                TPM_LONG_TIMEOUT,
-                TPM_LONG_TIMEOUT,
-                TPM_LONG_TIMEOUT,
-        },
 };
 
 static irqreturn_t tpmif_interrupt(int dummy, void *dev_id)
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 41c69469ce20..971d796e071d 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -26,6 +26,7 @@ config DW_APB_TIMER_OF
 
 config ARMADA_370_XP_TIMER
         bool
+        select CLKSRC_OF
 
 config ORION_TIMER
         select CLKSRC_OF
diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-of.c
index 37f5325bec95..b9ddd9e3a2f5 100644
--- a/drivers/clocksource/clksrc-of.c
+++ b/drivers/clocksource/clksrc-of.c
@@ -30,6 +30,9 @@ void __init clocksource_of_init(void)
         clocksource_of_init_fn init_func;
 
         for_each_matching_node_and_match(np, __clksrc_of_table, &match) {
+                if (!of_device_is_available(np))
+                        continue;
+
                 init_func = match->data;
                 init_func(np);
         }
diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
index b9c81b7c3a3b..3a5909c12d42 100644
--- a/drivers/clocksource/em_sti.c
+++ b/drivers/clocksource/em_sti.c
@@ -301,7 +301,7 @@ static void em_sti_register_clockevent(struct em_sti_priv *p)
         ced->name = dev_name(&p->pdev->dev);
         ced->features = CLOCK_EVT_FEAT_ONESHOT;
         ced->rating = 200;
-        ced->cpumask = cpumask_of(0);
+        ced->cpumask = cpu_possible_mask;
         ced->set_next_event = em_sti_clock_event_next;
         ced->set_mode = em_sti_clock_event_mode;
 
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index 5b34768f4d7c..62b0de6a1837 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -428,7 +428,6 @@ static int exynos4_local_timer_setup(struct clock_event_device *evt)
                                 evt->irq);
                         return -EIO;
                 }
-                irq_set_affinity(evt->irq, cpumask_of(cpu));
         } else {
                 enable_percpu_irq(mct_irqs[MCT_L0_IRQ], 0);
         }
@@ -449,6 +448,7 @@ static int exynos4_mct_cpu_notify(struct notifier_block *self,
                                            unsigned long action, void *hcpu)
 {
         struct mct_clock_event_device *mevt;
+        unsigned int cpu;
 
         /*
          * Grab cpu pointer in each case to avoid spurious
@@ -459,6 +459,12 @@ static int exynos4_mct_cpu_notify(struct notifier_block *self,
                 mevt = this_cpu_ptr(&percpu_mct_tick);
                 exynos4_local_timer_setup(&mevt->evt);
                 break;
+        case CPU_ONLINE:
+                cpu = (unsigned long)hcpu;
+                if (mct_int_type == MCT_INT_SPI)
+                        irq_set_affinity(mct_irqs[MCT_L0_IRQ + cpu],
+                                                cpumask_of(cpu));
+                break;
         case CPU_DYING:
                 mevt = this_cpu_ptr(&percpu_mct_tick);
                 exynos4_local_timer_stop(&mevt->evt);
@@ -500,6 +506,8 @@ static void __init exynos4_timer_resources(struct device_node *np, void __iomem
                                          &percpu_mct_tick);
                 WARN(err, "MCT: can't request IRQ %d (%d)\n",
                      mct_irqs[MCT_L0_IRQ], err);
+        } else {
+                irq_set_affinity(mct_irqs[MCT_L0_IRQ], cpumask_of(0));
         }
 
         err = register_cpu_notifier(&exynos4_mct_cpu_nb);
diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 08ae128cce9b..c73fc2b74de2 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -65,6 +65,7 @@ void proc_fork_connector(struct task_struct *task)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         get_seq(&msg->seq, &ev->cpu);
         ktime_get_ts(&ts); /* get high res monotonic timestamp */
         put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
@@ -80,6 +81,7 @@ void proc_fork_connector(struct task_struct *task)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = 0; /* not used */
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         /*  If cn_netlink_send() failed, the data is not sent */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
@@ -96,6 +98,7 @@ void proc_exec_connector(struct task_struct *task)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         get_seq(&msg->seq, &ev->cpu);
         ktime_get_ts(&ts); /* get high res monotonic timestamp */
         put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
@@ -106,6 +109,7 @@ void proc_exec_connector(struct task_struct *task)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = 0; /* not used */
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
@@ -122,6 +126,7 @@ void proc_id_connector(struct task_struct *task, int which_id)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         ev->what = which_id;
         ev->event_data.id.process_pid = task->pid;
         ev->event_data.id.process_tgid = task->tgid;
@@ -145,6 +150,7 @@ void proc_id_connector(struct task_struct *task, int which_id)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = 0; /* not used */
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
@@ -160,6 +166,7 @@ void proc_sid_connector(struct task_struct *task)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         get_seq(&msg->seq, &ev->cpu);
         ktime_get_ts(&ts); /* get high res monotonic timestamp */
         put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
@@ -170,6 +177,7 @@ void proc_sid_connector(struct task_struct *task)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = 0; /* not used */
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
@@ -185,6 +193,7 @@ void proc_ptrace_connector(struct task_struct *task, int ptrace_id)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         get_seq(&msg->seq, &ev->cpu);
         ktime_get_ts(&ts); /* get high res monotonic timestamp */
         put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
@@ -203,6 +212,7 @@ void proc_ptrace_connector(struct task_struct *task, int ptrace_id)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = 0; /* not used */
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
@@ -218,6 +228,7 @@ void proc_comm_connector(struct task_struct *task)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         get_seq(&msg->seq, &ev->cpu);
         ktime_get_ts(&ts); /* get high res monotonic timestamp */
         put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
@@ -229,6 +240,7 @@ void proc_comm_connector(struct task_struct *task)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = 0; /* not used */
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
@@ -244,6 +256,7 @@ void proc_coredump_connector(struct task_struct *task)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         get_seq(&msg->seq, &ev->cpu);
         ktime_get_ts(&ts); /* get high res monotonic timestamp */
         put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
@@ -254,6 +267,7 @@ void proc_coredump_connector(struct task_struct *task)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = 0; /* not used */
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
@@ -269,6 +283,7 @@ void proc_exit_connector(struct task_struct *task)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         get_seq(&msg->seq, &ev->cpu);
         ktime_get_ts(&ts); /* get high res monotonic timestamp */
         put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
@@ -281,6 +296,7 @@ void proc_exit_connector(struct task_struct *task)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = 0; /* not used */
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
@@ -304,6 +320,7 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack)
 
         msg = (struct cn_msg *)buffer;
         ev = (struct proc_event *)msg->data;
+        memset(&ev->event_data, 0, sizeof(ev->event_data));
         msg->seq = rcvd_seq;
         ktime_get_ts(&ts); /* get high res monotonic timestamp */
         put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
@@ -313,6 +330,7 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack)
         memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
         msg->ack = rcvd_ack + 1;
         msg->len = sizeof(*ev);
+        msg->flags = 0; /* not used */
         cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index 6ecfa758942c..a36749f1e44a 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -109,7 +109,7 @@ int cn_netlink_send(struct cn_msg *msg, u32 __group, gfp_t gfp_mask)
 
         data = nlmsg_data(nlh);
 
-        memcpy(data, msg, sizeof(*data) + msg->len);
+        memcpy(data, msg, size);
 
         NETLINK_CB(skb).dst_group = group;
 
@@ -157,17 +157,18 @@ static int cn_call_callback(struct sk_buff *skb)
 static void cn_rx_skb(struct sk_buff *__skb)
 {
         struct nlmsghdr *nlh;
-        int err;
         struct sk_buff *skb;
+        int len, err;
 
         skb = skb_get(__skb);
 
         if (skb->len >= NLMSG_HDRLEN) {
                 nlh = nlmsg_hdr(skb);
+                len = nlmsg_len(nlh);
 
-                if (nlh->nlmsg_len < sizeof(struct cn_msg) ||
+                if (len < (int)sizeof(struct cn_msg) ||
                     skb->len < nlh->nlmsg_len ||
-                    nlh->nlmsg_len > CONNECTOR_MAX_MSG_SIZE) {
+                    len > CONNECTOR_MAX_MSG_SIZE) {
                         kfree_skb(skb);
                         return;
                 }
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index a1260b4549db..d2c3253e015e 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -986,6 +986,10 @@ static int __init acpi_cpufreq_init(void)
 {
         int ret;
 
+        /* don't keep reloading if cpufreq_driver exists */
+        if (cpufreq_get_current_driver())
+                return 0;
+
         if (acpi_disabled)
                 return 0;
 
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index cbfffa91ebdd..78c49d8e0f4a 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -12,6 +12,7 @@
 #define pr_fmt(fmt)     KBUILD_MODNAME ": " fmt
 
 #include <linux/clk.h>
+#include <linux/cpu.h>
 #include <linux/cpufreq.h>
 #include <linux/err.h>
 #include <linux/module.h>
@@ -177,7 +178,11 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
         struct device_node *np;
         int ret;
 
-        cpu_dev = &pdev->dev;
+        cpu_dev = get_cpu_device(0);
+        if (!cpu_dev) {
+                pr_err("failed to get cpu0 device\n");
+                return -ENODEV;
+        }
 
         np = of_node_get(cpu_dev->of_node);
         if (!np) {
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 43c24aa756f6..04548f7023af 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -952,9 +952,20 @@ static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
         if (cpu == policy->cpu)
                 return;
 
+        /*
+         * Take direct locks as lock_policy_rwsem_write wouldn't work here.
+         * Also lock for last cpu is enough here as contention will happen only
+         * after policy->cpu is changed and after it is changed, other threads
+         * will try to acquire lock for new cpu. And policy is already updated
+         * by then.
+         */
+        down_write(&per_cpu(cpu_policy_rwsem, policy->cpu));
+
         policy->last_cpu = policy->cpu;
         policy->cpu = cpu;
 
+        up_write(&per_cpu(cpu_policy_rwsem, policy->last_cpu));
+
 #ifdef CONFIG_CPU_FREQ_TABLE
         cpufreq_frequency_table_update_policy_cpu(policy);
 #endif
@@ -1125,7 +1136,7 @@ static int cpufreq_nominate_new_policy_cpu(struct cpufreq_policy *policy,
         int ret;
 
         /* first sibling now owns the new sysfs dir */
-        cpu_dev = get_cpu_device(cpumask_first(policy->cpus));
+        cpu_dev = get_cpu_device(cpumask_any_but(policy->cpus, old_cpu));
 
         /* Don't touch sysfs files during light-weight tear-down */
         if (frozen)
@@ -1189,12 +1200,9 @@ static int __cpufreq_remove_dev_prepare(struct device *dev,
                         policy->governor->name, CPUFREQ_NAME_LEN);
 #endif
 
-        WARN_ON(lock_policy_rwsem_write(cpu));
+        lock_policy_rwsem_read(cpu);
         cpus = cpumask_weight(policy->cpus);
-
-        if (cpus > 1)
-                cpumask_clear_cpu(cpu, policy->cpus);
-        unlock_policy_rwsem_write(cpu);
+        unlock_policy_rwsem_read(cpu);
 
         if (cpu != policy->cpu) {
                 if (!frozen)
@@ -1203,9 +1211,7 @@ static int __cpufreq_remove_dev_prepare(struct device *dev,
 
                 new_cpu = cpufreq_nominate_new_policy_cpu(policy, cpu, frozen);
                 if (new_cpu >= 0) {
-                        WARN_ON(lock_policy_rwsem_write(cpu));
                         update_policy_cpu(policy, new_cpu);
-                        unlock_policy_rwsem_write(cpu);
 
                         if (!frozen) {
                                 pr_debug("%s: policy Kobject moved to cpu: %d "
@@ -1237,9 +1243,12 @@ static int __cpufreq_remove_dev_finish(struct device *dev,
                 return -EINVAL;
         }
 
-        lock_policy_rwsem_read(cpu);
+        WARN_ON(lock_policy_rwsem_write(cpu));
         cpus = cpumask_weight(policy->cpus);
-        unlock_policy_rwsem_read(cpu);
+
+        if (cpus > 1)
+                cpumask_clear_cpu(cpu, policy->cpus);
+        unlock_policy_rwsem_write(cpu);
 
         /* If cpu is last user of policy, free policy */
         if (cpus == 1) {
@@ -1451,6 +1460,9 @@ unsigned int cpufreq_get(unsigned int cpu)
 {
         unsigned int ret_freq = 0;
 
+        if (cpufreq_disabled() || !cpufreq_driver)
+                return -ENOENT;
+
         if (!down_read_trylock(&cpufreq_rwsem))
                 return 0;
 
@@ -2095,7 +2107,7 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
         write_lock_irqsave(&cpufreq_driver_lock, flags);
         if (cpufreq_driver) {
                 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
-                return -EBUSY;
+                return -EEXIST;
         }
         cpufreq_driver = driver_data;
         write_unlock_irqrestore(&cpufreq_driver_lock, flags);
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index d514c152fd1a..be5380ecdcd4 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -457,7 +457,7 @@ err_free_table:
         opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
 err_put_node:
         of_node_put(np);
-        dev_err(dvfs_info->dev, "%s: failed initialization\n", __func__);
+        dev_err(&pdev->dev, "%s: failed initialization\n", __func__);
         return ret;
 }
 
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 3e396543aea4..c3fd2a101ca0 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/clk.h>
+#include <linux/cpu.h>
 #include <linux/cpufreq.h>
 #include <linux/delay.h>
 #include <linux/err.h>
@@ -202,7 +203,11 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
         unsigned long min_volt, max_volt;
         int num, ret;
 
-        cpu_dev = &pdev->dev;
+        cpu_dev = get_cpu_device(0);
+        if (!cpu_dev) {
+                pr_err("failed to get cpu0 device\n");
+                return -ENODEV;
+        }
 
         np = of_node_get(cpu_dev->of_node);
         if (!np) {
diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
index b4fb86d89850..224ff965bcf7 100644
--- a/drivers/gpu/drm/drm_context.c
+++ b/drivers/gpu/drm/drm_context.c
@@ -42,6 +42,10 @@
 
 #include <drm/drmP.h>
 
+/******************************************************************/
+/** \name Context bitmap support */
+/*@{*/
+
 /**
  * Free a handle from the context bitmap.
  *
@@ -52,48 +56,13 @@
  * in drm_device::ctx_idr, while holding the drm_device::struct_mutex
  * lock.
  */
-static void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
+void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
 {
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return;
-
         mutex_lock(&dev->struct_mutex);
         idr_remove(&dev->ctx_idr, ctx_handle);
         mutex_unlock(&dev->struct_mutex);
 }
 
-/******************************************************************/
-/** \name Context bitmap support */
-/*@{*/
-
-void drm_legacy_ctxbitmap_release(struct drm_device *dev,
-                                  struct drm_file *file_priv)
-{
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return;
-
-        mutex_lock(&dev->ctxlist_mutex);
-        if (!list_empty(&dev->ctxlist)) {
-                struct drm_ctx_list *pos, *n;
-
-                list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
-                        if (pos->tag == file_priv &&
-                            pos->handle != DRM_KERNEL_CONTEXT) {
-                                if (dev->driver->context_dtor)
-                                        dev->driver->context_dtor(dev,
-                                                                  pos->handle);
-
-                                drm_ctxbitmap_free(dev, pos->handle);
-
-                                list_del(&pos->head);
-                                kfree(pos);
-                                --dev->ctx_count;
-                        }
-                }
-        }
-        mutex_unlock(&dev->ctxlist_mutex);
-}
-
 /**
  * Context bitmap allocation.
  *
@@ -121,12 +90,10 @@ static int drm_ctxbitmap_next(struct drm_device * dev)
  *
  * Initialise the drm_device::ctx_idr
  */
-void drm_legacy_ctxbitmap_init(struct drm_device * dev)
+int drm_ctxbitmap_init(struct drm_device * dev)
 {
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return;
-
         idr_init(&dev->ctx_idr);
+        return 0;
 }
 
 /**
@@ -137,7 +104,7 @@ void drm_legacy_ctxbitmap_init(struct drm_device * dev)
  * Free all idr members using drm_ctx_sarea_free helper function
  * while holding the drm_device::struct_mutex lock.
  */
-void drm_legacy_ctxbitmap_cleanup(struct drm_device * dev)
+void drm_ctxbitmap_cleanup(struct drm_device * dev)
 {
         mutex_lock(&dev->struct_mutex);
         idr_destroy(&dev->ctx_idr);
@@ -169,9 +136,6 @@ int drm_getsareactx(struct drm_device *dev, void *data,
         struct drm_local_map *map;
         struct drm_map_list *_entry;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return -EINVAL;
-
         mutex_lock(&dev->struct_mutex);
 
         map = idr_find(&dev->ctx_idr, request->ctx_id);
@@ -216,9 +180,6 @@ int drm_setsareactx(struct drm_device *dev, void *data,
         struct drm_local_map *map = NULL;
         struct drm_map_list *r_list = NULL;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return -EINVAL;
-
         mutex_lock(&dev->struct_mutex);
         list_for_each_entry(r_list, &dev->maplist, head) {
                 if (r_list->map
@@ -319,9 +280,6 @@ int drm_resctx(struct drm_device *dev, void *data,
         struct drm_ctx ctx;
         int i;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return -EINVAL;
-
         if (res->count >= DRM_RESERVED_CONTEXTS) {
                 memset(&ctx, 0, sizeof(ctx));
                 for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
@@ -352,9 +310,6 @@ int drm_addctx(struct drm_device *dev, void *data,
         struct drm_ctx_list *ctx_entry;
         struct drm_ctx *ctx = data;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return -EINVAL;
-
         ctx->handle = drm_ctxbitmap_next(dev);
         if (ctx->handle == DRM_KERNEL_CONTEXT) {
                 /* Skip kernel's context and get a new one. */
@@ -398,9 +353,6 @@ int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
         struct drm_ctx *ctx = data;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return -EINVAL;
-
         /* This is 0, because we don't handle any context flags */
         ctx->flags = 0;
 
@@ -423,9 +375,6 @@ int drm_switchctx(struct drm_device *dev, void *data,
 {
         struct drm_ctx *ctx = data;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return -EINVAL;
-
         DRM_DEBUG("%d\n", ctx->handle);
         return drm_context_switch(dev, dev->last_context, ctx->handle);
 }
@@ -446,9 +395,6 @@ int drm_newctx(struct drm_device *dev, void *data,
 {
         struct drm_ctx *ctx = data;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return -EINVAL;
-
         DRM_DEBUG("%d\n", ctx->handle);
         drm_context_switch_complete(dev, file_priv, ctx->handle);
 
@@ -471,9 +417,6 @@ int drm_rmctx(struct drm_device *dev, void *data,
 {
         struct drm_ctx *ctx = data;
 
-        if (drm_core_check_feature(dev, DRIVER_MODESET))
-                return -EINVAL;
-
         DRM_DEBUG("%d\n", ctx->handle);
         if (ctx->handle != DRM_KERNEL_CONTEXT) {
                 if (dev->driver->context_dtor)
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 4be8e09a32ef..3f84277d7036 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -439,7 +439,26 @@ int drm_release(struct inode *inode, struct file *filp)
         if (dev->driver->driver_features & DRIVER_GEM)
                 drm_gem_release(dev, file_priv);
 
-        drm_legacy_ctxbitmap_release(dev, file_priv);
+        mutex_lock(&dev->ctxlist_mutex);
+        if (!list_empty(&dev->ctxlist)) {
+                struct drm_ctx_list *pos, *n;
+
+                list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+                        if (pos->tag == file_priv &&
+                            pos->handle != DRM_KERNEL_CONTEXT) {
+                                if (dev->driver->context_dtor)
+                                        dev->driver->context_dtor(dev,
+                                                                  pos->handle);
+
+                                drm_ctxbitmap_free(dev, pos->handle);
+
+                                list_del(&pos->head);
+                                kfree(pos);
+                                --dev->ctx_count;
+                        }
+                }
+        }
+        mutex_unlock(&dev->ctxlist_mutex);
 
         mutex_lock(&dev->struct_mutex);
 
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index e7eb0276f7f1..39d864576be4 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -292,7 +292,13 @@ int drm_fill_in_dev(struct drm_device *dev,
                         goto error_out_unreg;
         }
 
-        drm_legacy_ctxbitmap_init(dev);
+
+
+        retcode = drm_ctxbitmap_init(dev);
+        if (retcode) {
+                DRM_ERROR("Cannot allocate memory for context bitmap.\n");
+                goto error_out_unreg;
+        }
 
         if (driver->driver_features & DRIVER_GEM) {
                 retcode = drm_gem_init(dev);
@@ -446,7 +452,7 @@ void drm_put_dev(struct drm_device *dev)
                 drm_rmmap(dev, r_list->map);
         drm_ht_remove(&dev->map_hash);
 
-        drm_legacy_ctxbitmap_cleanup(dev);
+        drm_ctxbitmap_cleanup(dev);
 
         if (drm_core_check_feature(dev, DRIVER_MODESET))
                 drm_put_minor(&dev->control);
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 4752f223e5b2..45b6ef595965 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -56,7 +56,7 @@ config DRM_EXYNOS_IPP
 
 config DRM_EXYNOS_FIMC
         bool "Exynos DRM FIMC"
-        depends on DRM_EXYNOS_IPP && MFD_SYSCON && OF
+        depends on DRM_EXYNOS_IPP && MFD_SYSCON
         help
           Choose this option if you want to use Exynos FIMC for DRM.
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c
index 3445a0f3a6b2..9c8088462c26 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_buf.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c
@@ -63,7 +63,8 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
                         return -ENOMEM;
                 }
 
-                buf->kvaddr = dma_alloc_attrs(dev->dev, buf->size,
+                buf->kvaddr = (void __iomem *)dma_alloc_attrs(dev->dev,
+                                        buf->size,
                                         &buf->dma_addr, GFP_KERNEL,
                                         &buf->dma_attrs);
                 if (!buf->kvaddr) {
@@ -90,9 +91,9 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
         }
 
         buf->sgt = drm_prime_pages_to_sg(buf->pages, nr_pages);
-        if (!buf->sgt) {
+        if (IS_ERR(buf->sgt)) {
                 DRM_ERROR("failed to get sg table.\n");
-                ret = -ENOMEM;
+                ret = PTR_ERR(buf->sgt);
                 goto err_free_attrs;
         }
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index 78e868bcf1ec..e7c2f2d07f19 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -99,12 +99,13 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
                 if (is_drm_iommu_supported(dev)) {
                         unsigned int nr_pages = buffer->size >> PAGE_SHIFT;
 
-                        buffer->kvaddr = vmap(buffer->pages, nr_pages, VM_MAP,
+                        buffer->kvaddr = (void __iomem *) vmap(buffer->pages,
+                                        nr_pages, VM_MAP,
                                         pgprot_writecombine(PAGE_KERNEL));
                 } else {
                         phys_addr_t dma_addr = buffer->dma_addr;
                         if (dma_addr)
-                                buffer->kvaddr = phys_to_virt(dma_addr);
+                                buffer->kvaddr = (void __iomem *)phys_to_virt(dma_addr);
                         else
                                 buffer->kvaddr = (void __iomem *)NULL;
                 }
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index b1f8fc69023f..60e84043aa34 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -707,8 +707,7 @@ tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
                 reg_write(encoder, REG_VIP_CNTRL_2, priv->vip_cntrl_2);
                 break;
         case DRM_MODE_DPMS_OFF:
-                /* disable audio and video ports */
-                reg_write(encoder, REG_ENA_AP, 0x00);
+                /* disable video ports */
                 reg_write(encoder, REG_ENA_VP_0, 0x00);
                 reg_write(encoder, REG_ENA_VP_1, 0x00);
                 reg_write(encoder, REG_ENA_VP_2, 0x00);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 8507c6d1e642..cdfb9da0e4ce 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1392,14 +1392,11 @@ out:
                 if (i915_terminally_wedged(&dev_priv->gpu_error))
                         return VM_FAULT_SIGBUS;
         case -EAGAIN:
-                /* Give the error handler a chance to run and move the
-                 * objects off the GPU active list. Next time we service the
-                 * fault, we should be able to transition the page into the
-                 * GTT without touching the GPU (and so avoid further
-                 * EIO/EGAIN). If the GPU is wedged, then there is no issue
-                 * with coherency, just lost writes.
+                /*
+                 * EAGAIN means the gpu is hung and we'll wait for the error
+                 * handler to reset everything when re-faulting in
+                 * i915_mutex_lock_interruptible.
                  */
-                set_need_resched();
         case 0:
         case -ERESTARTSYS:
         case -EINTR:
@@ -4803,10 +4800,10 @@ i915_gem_inactive_count(struct shrinker *shrinker, struct shrink_control *sc)
 
         if (!mutex_trylock(&dev->struct_mutex)) {
                 if (!mutex_is_locked_by(&dev->struct_mutex, current))
-                        return SHRINK_STOP;
+                        return 0;
 
                 if (dev_priv->mm.shrinker_no_lock_stealing)
-                        return SHRINK_STOP;
+                        return 0;
 
                 unlock = false;
         }
@@ -4904,10 +4901,10 @@ i915_gem_inactive_scan(struct shrinker *shrinker, struct shrink_control *sc)
 
         if (!mutex_trylock(&dev->struct_mutex)) {
                 if (!mutex_is_locked_by(&dev->struct_mutex, current))
-                        return 0;
+                        return SHRINK_STOP;
 
                 if (dev_priv->mm.shrinker_no_lock_stealing)
-                        return 0;
+                        return SHRINK_STOP;
 
                 unlock = false;
         }
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index aba9d7498996..dae364f0028c 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -143,8 +143,10 @@ static void i915_error_vprintf(struct drm_i915_error_state_buf *e,
 
         /* Seek the first printf which is hits start position */
         if (e->pos < e->start) {
-                len = vsnprintf(NULL, 0, f, args);
-                if (!__i915_error_seek(e, len))
+                va_list tmp;
+
+                va_copy(tmp, args);
+                if (!__i915_error_seek(e, vsnprintf(NULL, 0, f, tmp)))
                         return;
         }
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 83cce0cdb769..4b91228fd9bd 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1469,6 +1469,34 @@ static irqreturn_t ironlake_irq_handler(int irq, void *arg)
         return ret;
 }
 
+static void i915_error_wake_up(struct drm_i915_private *dev_priv,
+                               bool reset_completed)
+{
+        struct intel_ring_buffer *ring;
+        int i;
+
+        /*
+         * Notify all waiters for GPU completion events that reset state has
+         * been changed, and that they need to restart their wait after
+         * checking for potential errors (and bail out to drop locks if there is
+         * a gpu reset pending so that i915_error_work_func can acquire them).
+         */
+
+        /* Wake up __wait_seqno, potentially holding dev->struct_mutex. */
+        for_each_ring(ring, dev_priv, i)
+                wake_up_all(&ring->irq_queue);
+
+        /* Wake up intel_crtc_wait_for_pending_flips, holding crtc->mutex. */
+        wake_up_all(&dev_priv->pending_flip_queue);
+
+        /*
+         * Signal tasks blocked in i915_gem_wait_for_error that the pending
+         * reset state is cleared.
+         */
+        if (reset_completed)
+                wake_up_all(&dev_priv->gpu_error.reset_queue);
+}
+
 /**
  * i915_error_work_func - do process context error handling work
  * @work: work struct
@@ -1483,11 +1511,10 @@ static void i915_error_work_func(struct work_struct *work)
         drm_i915_private_t *dev_priv = container_of(error, drm_i915_private_t,
                                                     gpu_error);
         struct drm_device *dev = dev_priv->dev;
-        struct intel_ring_buffer *ring;
         char *error_event[] = { I915_ERROR_UEVENT "=1", NULL };
         char *reset_event[] = { I915_RESET_UEVENT "=1", NULL };
         char *reset_done_event[] = { I915_ERROR_UEVENT "=0", NULL };
-        int i, ret;
+        int ret;
 
         kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, error_event);
 
@@ -1506,8 +1533,16 @@ static void i915_error_work_func(struct work_struct *work)
                 kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE,
                                    reset_event);
 
+                /*
+                 * All state reset _must_ be completed before we update the
+                 * reset counter, for otherwise waiters might miss the reset
+                 * pending state and not properly drop locks, resulting in
+                 * deadlocks with the reset work.
+                 */
                 ret = i915_reset(dev);
 
+                intel_display_handle_reset(dev);
+
                 if (ret == 0) {
                         /*
                          * After all the gem state is reset, increment the reset
@@ -1528,12 +1563,11 @@ static void i915_error_work_func(struct work_struct *work)
                         atomic_set(&error->reset_counter, I915_WEDGED);
                 }
 
-                for_each_ring(ring, dev_priv, i)
-                        wake_up_all(&ring->irq_queue);
-
-                intel_display_handle_reset(dev);
-
-                wake_up_all(&dev_priv->gpu_error.reset_queue);
+                /*
+                 * Note: The wake_up also serves as a memory barrier so that
+                 * waiters see the update value of the reset counter atomic_t.
+                 */
+                i915_error_wake_up(dev_priv, true);
         }
 }
 
@@ -1642,8 +1676,6 @@ static void i915_report_and_clear_eir(struct drm_device *dev)
 void i915_handle_error(struct drm_device *dev, bool wedged)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
-        struct intel_ring_buffer *ring;
-        int i;
 
         i915_capture_error_state(dev);
         i915_report_and_clear_eir(dev);
@@ -1653,11 +1685,19 @@ void i915_handle_error(struct drm_device *dev, bool wedged)
                                 &dev_priv->gpu_error.reset_counter);
 
                 /*
-                 * Wakeup waiting processes so that the reset work item
-                 * doesn't deadlock trying to grab various locks.
+                 * Wakeup waiting processes so that the reset work function
+                 * i915_error_work_func doesn't deadlock trying to grab various
+                 * locks. By bumping the reset counter first, the woken
+                 * processes will see a reset in progress and back off,
+                 * releasing their locks and then wait for the reset completion.
+                 * We must do this for _all_ gpu waiters that might hold locks
+                 * that the reset work needs to acquire.
+                 *
+                 * Note: The wake_up serves as the required memory barrier to
+                 * ensure that the waiters see the updated value of the reset
+                 * counter atomic_t.
                  */
-                for_each_ring(ring, dev_priv, i)
-                        wake_up_all(&ring->irq_queue);
+                i915_error_wake_up(dev_priv, false);
         }
 
         /*
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 63aca49d11a8..63de2701b974 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -778,7 +778,7 @@ void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc)
                         /* Can only use the always-on power well for eDP when
                          * not using the panel fitter, and when not using motion
                           * blur mitigation (which we don't support). */
-                        if (intel_crtc->config.pch_pfit.size)
+                        if (intel_crtc->config.pch_pfit.enabled)
                                 temp |= TRANS_DDI_EDP_INPUT_A_ONOFF;
                         else
                                 temp |= TRANS_DDI_EDP_INPUT_A_ON;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2489d0b4c7d2..e5822e79f912 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2249,7 +2249,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 I915_WRITE(PIPESRC(intel_crtc->pipe),
                            ((crtc->mode.hdisplay - 1) << 16) |
                            (crtc->mode.vdisplay - 1));
-                if (!intel_crtc->config.pch_pfit.size &&
+                if (!intel_crtc->config.pch_pfit.enabled &&
                     (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
                      intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
                         I915_WRITE(PF_CTL(intel_crtc->pipe), 0);
@@ -3203,7 +3203,7 @@ static void ironlake_pfit_enable(struct intel_crtc *crtc)
         struct drm_i915_private *dev_priv = dev->dev_private;
         int pipe = crtc->pipe;
 
-        if (crtc->config.pch_pfit.size) {
+        if (crtc->config.pch_pfit.enabled) {
                 /* Force use of hard-coded filter coefficients
                  * as some pre-programmed values are broken,
                  * e.g. x201.
@@ -3428,7 +3428,7 @@ static void ironlake_pfit_disable(struct intel_crtc *crtc)
 
         /* To avoid upsetting the power well on haswell only disable the pfit if
          * it's in use. The hw state code will make sure we get this right. */
-        if (crtc->config.pch_pfit.size) {
+        if (crtc->config.pch_pfit.enabled) {
                 I915_WRITE(PF_CTL(pipe), 0);
                 I915_WRITE(PF_WIN_POS(pipe), 0);
                 I915_WRITE(PF_WIN_SZ(pipe), 0);
@@ -4775,6 +4775,10 @@ static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
 
         pipeconf = 0;
 
+        if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
+            I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE)
+                pipeconf |= PIPECONF_ENABLE;
+
         if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
                 /* Enable pixel doubling when the dot clock is > 90% of the (display)
                  * core speed.
@@ -4877,9 +4881,6 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
                 return -EINVAL;
         }
 
-        /* Ensure that the cursor is valid for the new mode before changing... */
-        intel_crtc_update_cursor(crtc, true);
-
         if (is_lvds && dev_priv->lvds_downclock_avail) {
                 /*
                  * Ensure we match the reduced clock's P to the target clock.
@@ -5768,9 +5769,6 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
                 intel_crtc->config.dpll.p2 = clock.p2;
         }
 
-        /* Ensure that the cursor is valid for the new mode before changing... */
-        intel_crtc_update_cursor(crtc, true);
-
         /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
         if (intel_crtc->config.has_pch_encoder) {
                 fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
@@ -5859,6 +5857,7 @@ static void ironlake_get_pfit_config(struct intel_crtc *crtc,
         tmp = I915_READ(PF_CTL(crtc->pipe));
 
         if (tmp & PF_ENABLE) {
+                pipe_config->pch_pfit.enabled = true;
                 pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
                 pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
 
@@ -6236,7 +6235,7 @@ static void haswell_modeset_global_resources(struct drm_device *dev)
                 if (!crtc->base.enabled)
                         continue;
 
-                if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.size ||
+                if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.enabled ||
                     crtc->config.cpu_transcoder != TRANSCODER_EDP)
                         enable = true;
         }
@@ -6259,9 +6258,6 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc,
         if (!intel_ddi_pll_mode_set(crtc))
                 return -EINVAL;
 
-        /* Ensure that the cursor is valid for the new mode before changing... */
-        intel_crtc_update_cursor(crtc, true);
-
         if (intel_crtc->config.has_dp_encoder)
                 intel_dp_set_m_n(intel_crtc);
 
@@ -6494,15 +6490,15 @@ static void haswell_write_eld(struct drm_connector *connector,
 
         /* Set ELD valid state */
         tmp = I915_READ(aud_cntrl_st2);
-        DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp);
+        DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp);
         tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
         I915_WRITE(aud_cntrl_st2, tmp);
         tmp = I915_READ(aud_cntrl_st2);
-        DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp);
+        DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp);
 
         /* Enable HDMI mode */
         tmp = I915_READ(aud_config);
-        DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp);
+        DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp);
         /* clear N_programing_enable and N_value_index */
         tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
         I915_WRITE(aud_config, tmp);
@@ -6937,7 +6933,8 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
         intel_crtc->cursor_width = width;
         intel_crtc->cursor_height = height;
 
-        intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
+        if (intel_crtc->active)
+                intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
 
         return 0;
 fail_unpin:
@@ -6956,7 +6953,8 @@ static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
         intel_crtc->cursor_x = x;
         intel_crtc->cursor_y = y;
 
-        intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
+        if (intel_crtc->active)
+                intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
 
         return 0;
 }
@@ -8205,9 +8203,10 @@ static void intel_dump_pipe_config(struct intel_crtc *crtc,
                       pipe_config->gmch_pfit.control,
                       pipe_config->gmch_pfit.pgm_ratios,
                       pipe_config->gmch_pfit.lvds_border_bits);
-        DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x\n",
+        DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
                       pipe_config->pch_pfit.pos,
-                      pipe_config->pch_pfit.size);
+                      pipe_config->pch_pfit.size,
+                      pipe_config->pch_pfit.enabled ? "enabled" : "disabled");
         DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled);
 }
 
@@ -8603,8 +8602,11 @@ intel_pipe_config_compare(struct drm_device *dev,
         if (INTEL_INFO(dev)->gen < 4)
                 PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
         PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
-        PIPE_CONF_CHECK_I(pch_pfit.pos);
-        PIPE_CONF_CHECK_I(pch_pfit.size);
+        PIPE_CONF_CHECK_I(pch_pfit.enabled);
+        if (current_config->pch_pfit.enabled) {
+                PIPE_CONF_CHECK_I(pch_pfit.pos);
+                PIPE_CONF_CHECK_I(pch_pfit.size);
+        }
 
         PIPE_CONF_CHECK_I(ips_enabled);
 
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 2151d13772b8..79c14e298ba6 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -588,7 +588,18 @@ intel_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
                         DRM_DEBUG_KMS("aux_ch native nack\n");
                         return -EREMOTEIO;
                 case AUX_NATIVE_REPLY_DEFER:
-                        udelay(100);
+                        /*
+                         * For now, just give more slack to branch devices. We
+                         * could check the DPCD for I2C bit rate capabilities,
+                         * and if available, adjust the interval. We could also
+                         * be more careful with DP-to-Legacy adapters where a
+                         * long legacy cable may force very low I2C bit rates.
+                         */
+                        if (intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] &
+                            DP_DWN_STRM_PORT_PRESENT)
+                                usleep_range(500, 600);
+                        else
+                                usleep_range(300, 400);
                         continue;
                 default:
                         DRM_ERROR("aux_ch invalid native reply 0x%02x\n",
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index a47799e832c6..28cae80495e2 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -280,6 +280,7 @@ struct intel_crtc_config {
         struct {
                 u32 pos;
                 u32 size;
+                bool enabled;
         } pch_pfit;
 
         /* FDI configuration, only valid if has_pch_encoder is set. */
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 406303b509c1..7fa7df546c1e 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -263,6 +263,8 @@ static bool intel_dvo_compute_config(struct intel_encoder *encoder,
                 C(vtotal);
                 C(clock);
 #undef C
+
+                drm_mode_set_crtcinfo(adjusted_mode, 0);
         }
 
         if (intel_dvo->dev.dev_ops->mode_fixup)
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 42114ecbae0e..293564a2896a 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -112,6 +112,7 @@ intel_pch_panel_fitting(struct intel_crtc *intel_crtc,
 done:
         pipe_config->pch_pfit.pos = (x << 16) | y;
         pipe_config->pch_pfit.size = (width << 16) | height;
+        pipe_config->pch_pfit.enabled = pipe_config->pch_pfit.size != 0;
 }
 
 static void
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 0c115cc4899f..dd176b7296c1 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2096,16 +2096,16 @@ static uint32_t ilk_pipe_pixel_rate(struct drm_device *dev,
                                     struct drm_crtc *crtc)
 {
         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-        uint32_t pixel_rate, pfit_size;
+        uint32_t pixel_rate;
 
         pixel_rate = intel_crtc->config.adjusted_mode.clock;
 
         /* We only use IF-ID interlacing. If we ever use PF-ID we'll need to
          * adjust the pixel_rate here. */
 
-        pfit_size = intel_crtc->config.pch_pfit.size;
-        if (pfit_size) {
+        if (intel_crtc->config.pch_pfit.enabled) {
                 uint64_t pipe_w, pipe_h, pfit_w, pfit_h;
+                uint32_t pfit_size = intel_crtc->config.pch_pfit.size;
 
                 pipe_w = intel_crtc->config.requested_mode.hdisplay;
                 pipe_h = intel_crtc->config.requested_mode.vdisplay;
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 85037b9d4934..49482fd5b76c 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -788,6 +788,8 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
         uint16_t h_sync_offset, v_sync_offset;
         int mode_clock;
 
+        memset(dtd, 0, sizeof(*dtd));
+
         width = mode->hdisplay;
         height = mode->vdisplay;
 
@@ -830,44 +832,51 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
                 dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 
-        dtd->part2.sdvo_flags = 0;
         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
-        dtd->part2.reserved = 0;
 }
 
-static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
+static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode *pmode,
                                          const struct intel_sdvo_dtd *dtd)
 {
-        mode->hdisplay = dtd->part1.h_active;
-        mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
-        mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
-        mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
-        mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
-        mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
-        mode->htotal = mode->hdisplay + dtd->part1.h_blank;
-        mode->htotal += (dtd->part1.h_high & 0xf) << 8;
-
-        mode->vdisplay = dtd->part1.v_active;
-        mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
-        mode->vsync_start = mode->vdisplay;
-        mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
-        mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
-        mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
-        mode->vsync_end = mode->vsync_start +
+        struct drm_display_mode mode = {};
+
+        mode.hdisplay = dtd->part1.h_active;
+        mode.hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
+        mode.hsync_start = mode.hdisplay + dtd->part2.h_sync_off;
+        mode.hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
+        mode.hsync_end = mode.hsync_start + dtd->part2.h_sync_width;
+        mode.hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
+        mode.htotal = mode.hdisplay + dtd->part1.h_blank;
+        mode.htotal += (dtd->part1.h_high & 0xf) << 8;
+
+        mode.vdisplay = dtd->part1.v_active;
+        mode.vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
+        mode.vsync_start = mode.vdisplay;
+        mode.vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
+        mode.vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
+        mode.vsync_start += dtd->part2.v_sync_off_high & 0xc0;
+        mode.vsync_end = mode.vsync_start +
                 (dtd->part2.v_sync_off_width & 0xf);
-        mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
-        mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
-        mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
+        mode.vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
+        mode.vtotal = mode.vdisplay + dtd->part1.v_blank;
+        mode.vtotal += (dtd->part1.v_high & 0xf) << 8;
 
-        mode->clock = dtd->part1.clock * 10;
+        mode.clock = dtd->part1.clock * 10;
 
-        mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
         if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
-                mode->flags |= DRM_MODE_FLAG_INTERLACE;
+                mode.flags |= DRM_MODE_FLAG_INTERLACE;
         if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
-                mode->flags |= DRM_MODE_FLAG_PHSYNC;
+                mode.flags |= DRM_MODE_FLAG_PHSYNC;
+        else
+                mode.flags |= DRM_MODE_FLAG_NHSYNC;
         if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
-                mode->flags |= DRM_MODE_FLAG_PVSYNC;
+                mode.flags |= DRM_MODE_FLAG_PVSYNC;
+        else
+                mode.flags |= DRM_MODE_FLAG_NVSYNC;
+
+        drm_mode_set_crtcinfo(&mode, 0);
+
+        drm_mode_copy(pmode, &mode);
 }
 
 static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo)
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index f2c6d7909ae2..dd6f84bf6c22 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -916,6 +916,14 @@ intel_tv_compute_config(struct intel_encoder *encoder,
         DRM_DEBUG_KMS("forcing bpc to 8 for TV\n");
         pipe_config->pipe_bpp = 8*3;
 
+        /* TV has it's own notion of sync and other mode flags, so clear them. */
+        pipe_config->adjusted_mode.flags = 0;
+
+        /*
+         * FIXME: We don't check whether the input mode is actually what we want
+         * or whether userspace is doing something stupid.
+         */
+
         return true;
 }
 
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index a60584763b61..a0b9d8a95b16 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -124,6 +124,8 @@ void adreno_recover(struct msm_gpu *gpu)
 
         /* reset completed fence seqno, just discard anything pending: */
         adreno_gpu->memptrs->fence = gpu->submitted_fence;
+        adreno_gpu->memptrs->rptr  = 0;
+        adreno_gpu->memptrs->wptr  = 0;
 
         gpu->funcs->pm_resume(gpu);
         ret = gpu->funcs->hw_init(gpu);
@@ -229,7 +231,7 @@ void adreno_idle(struct msm_gpu *gpu)
                         return;
         } while(time_before(jiffies, t));
 
-        DRM_ERROR("timeout waiting for %s to drain ringbuffer!\n", gpu->name);
+        DRM_ERROR("%s: timeout waiting to drain ringbuffer!\n", gpu->name);
 
         /* TODO maybe we need to reset GPU here to recover from hang? */
 }
@@ -256,11 +258,17 @@ void adreno_wait_ring(struct msm_gpu *gpu, uint32_t ndwords)
 {
         struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
         uint32_t freedwords;
+        unsigned long t = jiffies + ADRENO_IDLE_TIMEOUT;
         do {
                 uint32_t size = gpu->rb->size / 4;
                 uint32_t wptr = get_wptr(gpu->rb);
                 uint32_t rptr = adreno_gpu->memptrs->rptr;
                 freedwords = (rptr + (size - 1) - wptr) % size;
+
+                if (time_after(jiffies, t)) {
+                        DRM_ERROR("%s: timeout waiting for ringbuffer space\n", gpu->name);
+                        break;
+                }
         } while(freedwords < ndwords);
 }
 
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp4/mdp4_kms.c
index 5db5bbaedae2..bc7fd11ad8be 100644
--- a/drivers/gpu/drm/msm/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/mdp4/mdp4_kms.c
@@ -19,8 +19,6 @@
 #include "msm_drv.h"
 #include "mdp4_kms.h"
 
-#include <mach/iommu.h>
-
 static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev);
 
 static int mdp4_hw_init(struct msm_kms *kms)
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 864c9773636b..b3a2f1629041 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -18,8 +18,6 @@
 #include "msm_drv.h"
 #include "msm_gpu.h"
 
-#include <mach/iommu.h>
-
 static void msm_fb_output_poll_changed(struct drm_device *dev)
 {
         struct msm_drm_private *priv = dev->dev_private;
@@ -62,6 +60,8 @@ int msm_iommu_attach(struct drm_device *dev, struct iommu_domain *iommu,
         int i, ret;
 
         for (i = 0; i < cnt; i++) {
+                /* TODO maybe some day msm iommu won't require this hack: */
+                struct device *msm_iommu_get_ctx(const char *ctx_name);
                 struct device *ctx = msm_iommu_get_ctx(names[i]);
                 if (!ctx)
                         continue;
@@ -199,7 +199,7 @@ static int msm_load(struct drm_device *dev, unsigned long flags)
                  * imx drm driver on iMX5
                  */
                 dev_err(dev->dev, "failed to load kms\n");
-                ret = PTR_ERR(priv->kms);
+                ret = PTR_ERR(kms);
                 goto fail;
         }
 
@@ -499,25 +499,41 @@ int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence,
                 struct timespec *timeout)
 {
         struct msm_drm_private *priv = dev->dev_private;
-        unsigned long timeout_jiffies = timespec_to_jiffies(timeout);
-        unsigned long start_jiffies = jiffies;
-        unsigned long remaining_jiffies;
         int ret;
 
-        if (time_after(start_jiffies, timeout_jiffies))
-                remaining_jiffies = 0;
-        else
-                remaining_jiffies = timeout_jiffies - start_jiffies;
-
-        ret = wait_event_interruptible_timeout(priv->fence_event,
-                        priv->completed_fence >= fence,
-                        remaining_jiffies);
-        if (ret == 0) {
-                DBG("timeout waiting for fence: %u (completed: %u)",
-                                fence, priv->completed_fence);
-                ret = -ETIMEDOUT;
-        } else if (ret != -ERESTARTSYS) {
-                ret = 0;
+        if (!priv->gpu)
+                return 0;
+
+        if (fence > priv->gpu->submitted_fence) {
+                DRM_ERROR("waiting on invalid fence: %u (of %u)\n",
+                                fence, priv->gpu->submitted_fence);
+                return -EINVAL;
+        }
+
+        if (!timeout) {
+                /* no-wait: */
+                ret = fence_completed(dev, fence) ? 0 : -EBUSY;
+        } else {
+                unsigned long timeout_jiffies = timespec_to_jiffies(timeout);
+                unsigned long start_jiffies = jiffies;
+                unsigned long remaining_jiffies;
+
+                if (time_after(start_jiffies, timeout_jiffies))
+                        remaining_jiffies = 0;
+                else
+                        remaining_jiffies = timeout_jiffies - start_jiffies;
+
+                ret = wait_event_interruptible_timeout(priv->fence_event,
+                                fence_completed(dev, fence),
+                                remaining_jiffies);
+
+                if (ret == 0) {
+                        DBG("timeout waiting for fence: %u (completed: %u)",
+                                        fence, priv->completed_fence);
+                        ret = -ETIMEDOUT;
+                } else if (ret != -ERESTARTSYS) {
+                        ret = 0;
+                }
         }
 
         return ret;
@@ -681,7 +697,7 @@ static struct drm_driver msm_driver = {
         .gem_vm_ops         = &vm_ops,
         .dumb_create        = msm_gem_dumb_create,
         .dumb_map_offset    = msm_gem_dumb_map_offset,
-        .dumb_destroy       = msm_gem_dumb_destroy,
+        .dumb_destroy       = drm_gem_dumb_destroy,
 #ifdef CONFIG_DEBUG_FS
         .debugfs_init       = msm_debugfs_init,
         .debugfs_cleanup    = msm_debugfs_cleanup,
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 80d75094bf0a..df8f1d084bc1 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -153,7 +153,7 @@ void *msm_gem_vaddr(struct drm_gem_object *obj);
 int msm_gem_queue_inactive_work(struct drm_gem_object *obj,
                 struct work_struct *work);
 void msm_gem_move_to_active(struct drm_gem_object *obj,
-                struct msm_gpu *gpu, uint32_t fence);
+                struct msm_gpu *gpu, bool write, uint32_t fence);
 void msm_gem_move_to_inactive(struct drm_gem_object *obj);
 int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op,
                 struct timespec *timeout);
@@ -191,6 +191,12 @@ u32 msm_readl(const void __iomem *addr);
 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 
+static inline bool fence_completed(struct drm_device *dev, uint32_t fence)
+{
+        struct msm_drm_private *priv = dev->dev_private;
+        return priv->completed_fence >= fence;
+}
+
 static inline int align_pitch(int width, int bpp)
 {
         int bytespp = (bpp + 7) / 8;
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 6b5a6c8c7658..2bae46c66a30 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -40,9 +40,9 @@ static struct page **get_pages(struct drm_gem_object *obj)
                 }
 
                 msm_obj->sgt = drm_prime_pages_to_sg(p, npages);
-                if (!msm_obj->sgt) {
+                if (IS_ERR(msm_obj->sgt)) {
                         dev_err(dev->dev, "failed to allocate sgt\n");
-                        return ERR_PTR(-ENOMEM);
+                        return ERR_CAST(msm_obj->sgt);
                 }
 
                 msm_obj->pages = p;
@@ -159,7 +159,6 @@ out_unlock:
 out:
         switch (ret) {
         case -EAGAIN:
-                set_need_resched();
         case 0:
         case -ERESTARTSYS:
         case -EINTR:
@@ -320,13 +319,6 @@ int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
                         MSM_BO_SCANOUT | MSM_BO_WC, &args->handle);
 }
 
-int msm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
-                uint32_t handle)
-{
-        /* No special work needed, drop the reference and see what falls out */
-        return drm_gem_handle_delete(file, handle);
-}
-
 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
                 uint32_t handle, uint64_t *offset)
 {
@@ -393,11 +385,14 @@ int msm_gem_queue_inactive_work(struct drm_gem_object *obj,
 }
 
 void msm_gem_move_to_active(struct drm_gem_object *obj,
-                struct msm_gpu *gpu, uint32_t fence)
+                struct msm_gpu *gpu, bool write, uint32_t fence)
 {
         struct msm_gem_object *msm_obj = to_msm_bo(obj);
         msm_obj->gpu = gpu;
-        msm_obj->fence = fence;
+        if (write)
+                msm_obj->write_fence = fence;
+        else
+                msm_obj->read_fence = fence;
         list_del_init(&msm_obj->mm_list);
         list_add_tail(&msm_obj->mm_list, &gpu->active_list);
 }
@@ -411,7 +406,8 @@ void msm_gem_move_to_inactive(struct drm_gem_object *obj)
         WARN_ON(!mutex_is_locked(&dev->struct_mutex));
 
         msm_obj->gpu = NULL;
-        msm_obj->fence = 0;
+        msm_obj->read_fence = 0;
+        msm_obj->write_fence = 0;
         list_del_init(&msm_obj->mm_list);
         list_add_tail(&msm_obj->mm_list, &priv->inactive_list);
 
@@ -433,8 +429,18 @@ int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op,
         struct msm_gem_object *msm_obj = to_msm_bo(obj);
         int ret = 0;
 
-        if (is_active(msm_obj) && !(op & MSM_PREP_NOSYNC))
-                ret = msm_wait_fence_interruptable(dev, msm_obj->fence, timeout);
+        if (is_active(msm_obj)) {
+                uint32_t fence = 0;
+
+                if (op & MSM_PREP_READ)
+                        fence = msm_obj->write_fence;
+                if (op & MSM_PREP_WRITE)
+                        fence = max(fence, msm_obj->read_fence);
+                if (op & MSM_PREP_NOSYNC)
+                        timeout = NULL;
+
+                ret = msm_wait_fence_interruptable(dev, fence, timeout);
+        }
 
         /* TODO cache maintenance */
 
@@ -455,9 +461,10 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
         uint64_t off = drm_vma_node_start(&obj->vma_node);
 
         WARN_ON(!mutex_is_locked(&dev->struct_mutex));
-        seq_printf(m, "%08x: %c(%d) %2d (%2d) %08llx %p %d\n",
+        seq_printf(m, "%08x: %c(r=%u,w=%u) %2d (%2d) %08llx %p %d\n",
                         msm_obj->flags, is_active(msm_obj) ? 'A' : 'I',
-                        msm_obj->fence, obj->name, obj->refcount.refcount.counter,
+                        msm_obj->read_fence, msm_obj->write_fence,
+                        obj->name, obj->refcount.refcount.counter,
                         off, msm_obj->vaddr, obj->size);
 }
 
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index d746f13d283c..0676f32e2c6a 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -36,7 +36,7 @@ struct msm_gem_object {
          */
         struct list_head mm_list;
         struct msm_gpu *gpu;     /* non-null if active */
-        uint32_t fence;
+        uint32_t read_fence, write_fence;
 
         /* Transiently in the process of submit ioctl, objects associated
          * with the submit are on submit->bo_list.. this only lasts for
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 3e1ef3a00f60..5281d4bc37f7 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -78,7 +78,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
                 }
 
                 if (submit_bo.flags & BO_INVALID_FLAGS) {
-                        DBG("invalid flags: %x", submit_bo.flags);
+                        DRM_ERROR("invalid flags: %x\n", submit_bo.flags);
                         ret = -EINVAL;
                         goto out_unlock;
                 }
@@ -92,7 +92,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
                  */
                 obj = idr_find(&file->object_idr, submit_bo.handle);
                 if (!obj) {
-                        DBG("invalid handle %u at index %u", submit_bo.handle, i);
+                        DRM_ERROR("invalid handle %u at index %u\n", submit_bo.handle, i);
                         ret = -EINVAL;
                         goto out_unlock;
                 }
@@ -100,7 +100,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
                 msm_obj = to_msm_bo(obj);
 
                 if (!list_empty(&msm_obj->submit_entry)) {
-                        DBG("handle %u at index %u already on submit list",
+                        DRM_ERROR("handle %u at index %u already on submit list\n",
                                         submit_bo.handle, i);
                         ret = -EINVAL;
                         goto out_unlock;
@@ -216,8 +216,9 @@ static int submit_bo(struct msm_gem_submit *submit, uint32_t idx,
                 struct msm_gem_object **obj, uint32_t *iova, bool *valid)
 {
         if (idx >= submit->nr_bos) {
-                DBG("invalid buffer index: %u (out of %u)", idx, submit->nr_bos);
-                return EINVAL;
+                DRM_ERROR("invalid buffer index: %u (out of %u)\n",
+                                idx, submit->nr_bos);
+                return -EINVAL;
         }
 
         if (obj)
@@ -239,7 +240,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob
         int ret;
 
         if (offset % 4) {
-                DBG("non-aligned cmdstream buffer: %u", offset);
+                DRM_ERROR("non-aligned cmdstream buffer: %u\n", offset);
                 return -EINVAL;
         }
 
@@ -266,7 +267,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob
                         return -EFAULT;
 
                 if (submit_reloc.submit_offset % 4) {
-                        DBG("non-aligned reloc offset: %u",
+                        DRM_ERROR("non-aligned reloc offset: %u\n",
                                         submit_reloc.submit_offset);
                         return -EINVAL;
                 }
@@ -276,7 +277,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob
 
                 if ((off >= (obj->base.size / 4)) ||
                                 (off < last_offset)) {
-                        DBG("invalid offset %u at reloc %u", off, i);
+                        DRM_ERROR("invalid offset %u at reloc %u\n", off, i);
                         return -EINVAL;
                 }
 
@@ -374,14 +375,15 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
                         goto out;
 
                 if (submit_cmd.size % 4) {
-                        DBG("non-aligned cmdstream buffer size: %u",
+                        DRM_ERROR("non-aligned cmdstream buffer size: %u\n",
                                         submit_cmd.size);
                         ret = -EINVAL;
                         goto out;
                 }
 
-                if (submit_cmd.size >= msm_obj->base.size) {
-                        DBG("invalid cmdstream size: %u", submit_cmd.size);
+                if ((submit_cmd.size + submit_cmd.submit_offset) >=
+                                msm_obj->base.size) {
+                        DRM_ERROR("invalid cmdstream size: %u\n", submit_cmd.size);
                         ret = -EINVAL;
                         goto out;
                 }
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index e1e1ec9321ff..3bab937965d1 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -29,13 +29,14 @@
 static void bs_init(struct msm_gpu *gpu, struct platform_device *pdev)
 {
         struct drm_device *dev = gpu->dev;
-        struct kgsl_device_platform_data *pdata = pdev->dev.platform_data;
+        struct kgsl_device_platform_data *pdata;
 
         if (!pdev) {
                 dev_err(dev->dev, "could not find dtv pdata\n");
                 return;
         }
 
+        pdata = pdev->dev.platform_data;
         if (pdata->bus_scale_table) {
                 gpu->bsc = msm_bus_scale_register_client(pdata->bus_scale_table);
                 DBG("bus scale client: %08x", gpu->bsc);
@@ -230,6 +231,8 @@ static void hangcheck_timer_reset(struct msm_gpu *gpu)
 static void hangcheck_handler(unsigned long data)
 {
         struct msm_gpu *gpu = (struct msm_gpu *)data;
+        struct drm_device *dev = gpu->dev;
+        struct msm_drm_private *priv = dev->dev_private;
         uint32_t fence = gpu->funcs->last_fence(gpu);
 
         if (fence != gpu->hangcheck_fence) {
@@ -237,14 +240,22 @@ static void hangcheck_handler(unsigned long data)
                 gpu->hangcheck_fence = fence;
         } else if (fence < gpu->submitted_fence) {
                 /* no progress and not done.. hung! */
-                struct msm_drm_private *priv = gpu->dev->dev_private;
                 gpu->hangcheck_fence = fence;
+                dev_err(dev->dev, "%s: hangcheck detected gpu lockup!\n",
+                                gpu->name);
+                dev_err(dev->dev, "%s:     completed fence: %u\n",
+                                gpu->name, fence);
+                dev_err(dev->dev, "%s:     submitted fence: %u\n",
+                                gpu->name, gpu->submitted_fence);
                 queue_work(priv->wq, &gpu->recover_work);
         }
 
         /* if still more pending work, reset the hangcheck timer: */
         if (gpu->submitted_fence > gpu->hangcheck_fence)
                 hangcheck_timer_reset(gpu);
+
+        /* workaround for missing irq: */
+        queue_work(priv->wq, &gpu->retire_work);
 }
 
 /*
@@ -265,7 +276,8 @@ static void retire_worker(struct work_struct *work)
                 obj = list_first_entry(&gpu->active_list,
                                 struct msm_gem_object, mm_list);
 
-                if (obj->fence <= fence) {
+                if ((obj->read_fence <= fence) &&
+                                (obj->write_fence <= fence)) {
                         /* move to inactive: */
                         msm_gem_move_to_inactive(&obj->base);
                         msm_gem_put_iova(&obj->base, gpu->id);
@@ -321,7 +333,11 @@ int msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
                                         submit->gpu->id, &iova);
                 }
 
-                msm_gem_move_to_active(&msm_obj->base, gpu, submit->fence);
+                if (submit->bos[i].flags & MSM_SUBMIT_BO_READ)
+                        msm_gem_move_to_active(&msm_obj->base, gpu, false, submit->fence);
+
+                if (submit->bos[i].flags & MSM_SUBMIT_BO_WRITE)
+                        msm_gem_move_to_active(&msm_obj->base, gpu, true, submit->fence);
         }
         hangcheck_timer_reset(gpu);
         mutex_unlock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/radeon/btc_dpm.c b/drivers/gpu/drm/radeon/btc_dpm.c
index 05ff315e8e9e..b162e98a2953 100644
--- a/drivers/gpu/drm/radeon/btc_dpm.c
+++ b/drivers/gpu/drm/radeon/btc_dpm.c
@@ -1168,6 +1168,23 @@ static const struct radeon_blacklist_clocks btc_blacklist_clocks[] =
         { 25000, 30000, RADEON_SCLK_UP }
 };
 
+void btc_get_max_clock_from_voltage_dependency_table(struct radeon_clock_voltage_dependency_table *table,
+                                                     u32 *max_clock)
+{
+        u32 i, clock = 0;
+
+        if ((table == NULL) || (table->count == 0)) {
+                *max_clock = clock;
+                return;
+        }
+
+        for (i = 0; i < table->count; i++) {
+                if (clock < table->entries[i].clk)
+                        clock = table->entries[i].clk;
+        }
+        *max_clock = clock;
+}
+
 void btc_apply_voltage_dependency_rules(struct radeon_clock_voltage_dependency_table *table,
                                         u32 clock, u16 max_voltage, u16 *voltage)
 {
@@ -2080,6 +2097,7 @@ static void btc_apply_state_adjust_rules(struct radeon_device *rdev,
         bool disable_mclk_switching;
         u32 mclk, sclk;
         u16 vddc, vddci;
+        u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc;
 
         if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
             btc_dpm_vblank_too_short(rdev))
@@ -2121,6 +2139,39 @@ static void btc_apply_state_adjust_rules(struct radeon_device *rdev,
                         ps->low.vddci = max_limits->vddci;
         }
 
+        /* limit clocks to max supported clocks based on voltage dependency tables */
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
+                                                        &max_sclk_vddc);
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
+                                                        &max_mclk_vddci);
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
+                                                        &max_mclk_vddc);
+
+        if (max_sclk_vddc) {
+                if (ps->low.sclk > max_sclk_vddc)
+                        ps->low.sclk = max_sclk_vddc;
+                if (ps->medium.sclk > max_sclk_vddc)
+                        ps->medium.sclk = max_sclk_vddc;
+                if (ps->high.sclk > max_sclk_vddc)
+                        ps->high.sclk = max_sclk_vddc;
+        }
+        if (max_mclk_vddci) {
+                if (ps->low.mclk > max_mclk_vddci)
+                        ps->low.mclk = max_mclk_vddci;
+                if (ps->medium.mclk > max_mclk_vddci)
+                        ps->medium.mclk = max_mclk_vddci;
+                if (ps->high.mclk > max_mclk_vddci)
+                        ps->high.mclk = max_mclk_vddci;
+        }
+        if (max_mclk_vddc) {
+                if (ps->low.mclk > max_mclk_vddc)
+                        ps->low.mclk = max_mclk_vddc;
+                if (ps->medium.mclk > max_mclk_vddc)
+                        ps->medium.mclk = max_mclk_vddc;
+                if (ps->high.mclk > max_mclk_vddc)
+                        ps->high.mclk = max_mclk_vddc;
+        }
+
         /* XXX validate the min clocks required for display */
 
         if (disable_mclk_switching) {
diff --git a/drivers/gpu/drm/radeon/btc_dpm.h b/drivers/gpu/drm/radeon/btc_dpm.h
index 1a15e0e41950..3b6f12b7760b 100644
--- a/drivers/gpu/drm/radeon/btc_dpm.h
+++ b/drivers/gpu/drm/radeon/btc_dpm.h
@@ -46,6 +46,8 @@ void btc_adjust_clock_combinations(struct radeon_device *rdev,
                                    struct rv7xx_pl *pl);
 void btc_apply_voltage_dependency_rules(struct radeon_clock_voltage_dependency_table *table,
                                         u32 clock, u16 max_voltage, u16 *voltage);
+void btc_get_max_clock_from_voltage_dependency_table(struct radeon_clock_voltage_dependency_table *table,
+                                                     u32 *max_clock);
 void btc_apply_voltage_delta_rules(struct radeon_device *rdev,
                                    u16 max_vddc, u16 max_vddci,
                                    u16 *vddc, u16 *vddci);
diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index 899627443030..51e947a97edf 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -146,6 +146,8 @@ static const struct ci_pt_config_reg didt_config_ci[] =
 };
 
 extern u8 rv770_get_memory_module_index(struct radeon_device *rdev);
+extern void btc_get_max_clock_from_voltage_dependency_table(struct radeon_clock_voltage_dependency_table *table,
+                                                            u32 *max_clock);
 extern int ni_copy_and_switch_arb_sets(struct radeon_device *rdev,
                                        u32 arb_freq_src, u32 arb_freq_dest);
 extern u8 si_get_ddr3_mclk_frequency_ratio(u32 memory_clock);
@@ -712,6 +714,7 @@ static void ci_apply_state_adjust_rules(struct radeon_device *rdev,
         struct radeon_clock_and_voltage_limits *max_limits;
         bool disable_mclk_switching;
         u32 sclk, mclk;
+        u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc;
         int i;
 
         if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
@@ -739,6 +742,29 @@ static void ci_apply_state_adjust_rules(struct radeon_device *rdev,
                 }
         }
 
+        /* limit clocks to max supported clocks based on voltage dependency tables */
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
+                                                        &max_sclk_vddc);
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
+                                                        &max_mclk_vddci);
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
+                                                        &max_mclk_vddc);
+
+        for (i = 0; i < ps->performance_level_count; i++) {
+                if (max_sclk_vddc) {
+                        if (ps->performance_levels[i].sclk > max_sclk_vddc)
+                                ps->performance_levels[i].sclk = max_sclk_vddc;
+                }
+                if (max_mclk_vddci) {
+                        if (ps->performance_levels[i].mclk > max_mclk_vddci)
+                                ps->performance_levels[i].mclk = max_mclk_vddci;
+                }
+                if (max_mclk_vddc) {
+                        if (ps->performance_levels[i].mclk > max_mclk_vddc)
+                                ps->performance_levels[i].mclk = max_mclk_vddc;
+                }
+        }
+
         /* XXX validate the min clocks required for display */
 
         if (disable_mclk_switching) {
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index adbdb6503b05..d02fd1c045d5 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -2845,10 +2845,8 @@ static void cik_gpu_init(struct radeon_device *rdev)
                 rdev->config.cik.tile_config |= (3 << 0);
                 break;
         }
-        if ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT)
-                rdev->config.cik.tile_config |= 1 << 4;
-        else
-                rdev->config.cik.tile_config |= 0 << 4;
+        rdev->config.cik.tile_config |=
+                ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
         rdev->config.cik.tile_config |=
                 ((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
         rdev->config.cik.tile_config |=
@@ -4456,8 +4454,8 @@ static int cik_mc_init(struct radeon_device *rdev)
         rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
         rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
         /* size in MB on si */
-        rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
-        rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
+        rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL;
+        rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL;
         rdev->mc.visible_vram_size = rdev->mc.aper_size;
         si_vram_gtt_location(rdev, &rdev->mc);
         radeon_update_bandwidth_info(rdev);
@@ -4735,12 +4733,13 @@ static void cik_vm_decode_fault(struct radeon_device *rdev,
         u32 mc_id = (status & MEMORY_CLIENT_ID_MASK) >> MEMORY_CLIENT_ID_SHIFT;
         u32 vmid = (status & FAULT_VMID_MASK) >> FAULT_VMID_SHIFT;
         u32 protections = (status & PROTECTIONS_MASK) >> PROTECTIONS_SHIFT;
-        char *block = (char *)&mc_client;
+        char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
+                (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 
-        printk("VM fault (0x%02x, vmid %d) at page %u, %s from %s (%d)\n",
+        printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
                protections, vmid, addr,
                (status & MEMORY_CLIENT_RW_MASK) ? "write" : "read",
-               block, mc_id);
+               block, mc_client, mc_id);
 }
 
 /**
diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index 6c398a456d78..f26339028154 100644
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -787,6 +787,7 @@ static void ni_apply_state_adjust_rules(struct radeon_device *rdev,
         bool disable_mclk_switching;
         u32 mclk, sclk;
         u16 vddc, vddci;
+        u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc;
         int i;
 
         if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
@@ -813,6 +814,29 @@ static void ni_apply_state_adjust_rules(struct radeon_device *rdev,
                 }
         }
 
+        /* limit clocks to max supported clocks based on voltage dependency tables */
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
+                                                        &max_sclk_vddc);
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
+                                                        &max_mclk_vddci);
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
+                                                        &max_mclk_vddc);
+
+        for (i = 0; i < ps->performance_level_count; i++) {
+                if (max_sclk_vddc) {
+                        if (ps->performance_levels[i].sclk > max_sclk_vddc)
+                                ps->performance_levels[i].sclk = max_sclk_vddc;
+                }
+                if (max_mclk_vddci) {
+                        if (ps->performance_levels[i].mclk > max_mclk_vddci)
+                                ps->performance_levels[i].mclk = max_mclk_vddci;
+                }
+                if (max_mclk_vddc) {
+                        if (ps->performance_levels[i].mclk > max_mclk_vddc)
+                                ps->performance_levels[i].mclk = max_mclk_vddc;
+                }
+        }
+
         /* XXX validate the min clocks required for display */
 
         if (disable_mclk_switching) {
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 24175717307b..d71333033b2b 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2933,9 +2933,11 @@ static int r100_debugfs_cp_ring_info(struct seq_file *m, void *data)
         seq_printf(m, "CP_RB_RPTR 0x%08x\n", rdp);
         seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw);
         seq_printf(m, "%u dwords in ring\n", count);
-        for (j = 0; j <= count; j++) {
-                i = (rdp + j) & ring->ptr_mask;
-                seq_printf(m, "r[%04d]=0x%08x\n", i, ring->ring[i]);
+        if (ring->ready) {
+                for (j = 0; j <= count; j++) {
+                        i = (rdp + j) & ring->ptr_mask;
+                        seq_printf(m, "r[%04d]=0x%08x\n", i, ring->ring[i]);
+                }
         }
         return 0;
 }
diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c
index e65f211a7be0..5513d8f06252 100644
--- a/drivers/gpu/drm/radeon/r600_dpm.c
+++ b/drivers/gpu/drm/radeon/r600_dpm.c
@@ -1084,7 +1084,7 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
                                 rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].dclk =
                                         le16_to_cpu(uvd_clk->usDClkLow) | (uvd_clk->ucDClkHigh << 16);
                                 rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].v =
-                                        le16_to_cpu(limits->entries[i].usVoltage);
+                                        le16_to_cpu(entry->usVoltage);
                                 entry = (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *)
                                         ((u8 *)entry + sizeof(ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record));
                         }
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index f443010ce90b..b0fa6002af3e 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -257,10 +257,7 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
          * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
          * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
          */
-        if (ASIC_IS_DCE3(rdev)) {
-                /* according to the reg specs, this should DCE3.2 only, but in
-                 * practice it seems to cover DCE3.0 as well.
-                 */
+        if (ASIC_IS_DCE32(rdev)) {
                 if (dig->dig_encoder == 0) {
                         dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
                         dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
@@ -276,8 +273,21 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
                         WREG32(DCCG_AUDIO_DTO1_MODULE, dto_modulo);
                         WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
                 }
+        } else if (ASIC_IS_DCE3(rdev)) {
+                /* according to the reg specs, this should DCE3.2 only, but in
+                 * practice it seems to cover DCE3.0/3.1 as well.
+                 */
+                if (dig->dig_encoder == 0) {
+                        WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100);
+                        WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);
+                        WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
+                } else {
+                        WREG32(DCCG_AUDIO_DTO1_PHASE, base_rate * 100);
+                        WREG32(DCCG_AUDIO_DTO1_MODULE, clock * 100);
+                        WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
+                }
         } else {
-                /* according to the reg specs, this should be DCE2.0 and DCE3.0 */
+                /* according to the reg specs, this should be DCE2.0 and DCE3.0/3.1 */
                 WREG32(AUDIO_DTO, AUDIO_DTO_PHASE(base_rate / 10) |
                        AUDIO_DTO_MODULE(clock / 10));
         }
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 5003385a7512..8f7e04538fd6 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1004,6 +1004,8 @@ static struct radeon_asic rv6xx_asic = {
                 .wait_for_vblank = &avivo_wait_for_vblank,
                 .set_backlight_level = &atombios_set_backlight_level,
                 .get_backlight_level = &atombios_get_backlight_level,
+                .hdmi_enable = &r600_hdmi_enable,
+                .hdmi_setmode = &r600_hdmi_setmode,
         },
         .copy = {
                 .blit = &r600_copy_cpdma,
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 404e25d285ba..f79ee184ffd5 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1367,6 +1367,7 @@ bool radeon_atombios_get_ppll_ss_info(struct radeon_device *rdev,
         int index = GetIndexIntoMasterTable(DATA, PPLL_SS_Info);
         uint16_t data_offset, size;
         struct _ATOM_SPREAD_SPECTRUM_INFO *ss_info;
+        struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT *ss_assign;
         uint8_t frev, crev;
         int i, num_indices;
 
@@ -1378,18 +1379,21 @@ bool radeon_atombios_get_ppll_ss_info(struct radeon_device *rdev,
 
                 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                         sizeof(ATOM_SPREAD_SPECTRUM_ASSIGNMENT);
-
+                ss_assign = (struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT*)
+                        ((u8 *)&ss_info->asSS_Info[0]);
                 for (i = 0; i < num_indices; i++) {
-                        if (ss_info->asSS_Info[i].ucSS_Id == id) {
+                        if (ss_assign->ucSS_Id == id) {
                                 ss->percentage =
-                                        le16_to_cpu(ss_info->asSS_Info[i].usSpreadSpectrumPercentage);
-                                ss->type = ss_info->asSS_Info[i].ucSpreadSpectrumType;
-                                ss->step = ss_info->asSS_Info[i].ucSS_Step;
-                                ss->delay = ss_info->asSS_Info[i].ucSS_Delay;
-                                ss->range = ss_info->asSS_Info[i].ucSS_Range;
-                                ss->refdiv = ss_info->asSS_Info[i].ucRecommendedRef_Div;
+                                        le16_to_cpu(ss_assign->usSpreadSpectrumPercentage);
+                                ss->type = ss_assign->ucSpreadSpectrumType;
+                                ss->step = ss_assign->ucSS_Step;
+                                ss->delay = ss_assign->ucSS_Delay;
+                                ss->range = ss_assign->ucSS_Range;
+                                ss->refdiv = ss_assign->ucRecommendedRef_Div;
                                 return true;
                         }
+                        ss_assign = (struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT*)
+                                ((u8 *)ss_assign + sizeof(struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT));
                 }
         }
         return false;
@@ -1477,6 +1481,12 @@ union asic_ss_info {
         struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
 };
 
+union asic_ss_assignment {
+        struct _ATOM_ASIC_SS_ASSIGNMENT v1;
+        struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
+        struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
+};
+
 bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev,
                                       struct radeon_atom_ss *ss,
                                       int id, u32 clock)
@@ -1485,6 +1495,7 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev,
         int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
         uint16_t data_offset, size;
         union asic_ss_info *ss_info;
+        union asic_ss_assignment *ss_assign;
         uint8_t frev, crev;
         int i, num_indices;
 
@@ -1509,45 +1520,52 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev,
                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT);
 
+                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
                         for (i = 0; i < num_indices; i++) {
-                                if ((ss_info->info.asSpreadSpectrum[i].ucClockIndication == id) &&
-                                    (clock <= le32_to_cpu(ss_info->info.asSpreadSpectrum[i].ulTargetClockRange))) {
+                                if ((ss_assign->v1.ucClockIndication == id) &&
+                                    (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
                                         ss->percentage =
-                                                le16_to_cpu(ss_info->info.asSpreadSpectrum[i].usSpreadSpectrumPercentage);
-                                        ss->type = ss_info->info.asSpreadSpectrum[i].ucSpreadSpectrumMode;
-                                        ss->rate = le16_to_cpu(ss_info->info.asSpreadSpectrum[i].usSpreadRateInKhz);
+                                                le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
+                                        ss->type = ss_assign->v1.ucSpreadSpectrumMode;
+                                        ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
                                         return true;
                                 }
+                                ss_assign = (union asic_ss_assignment *)
+                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
                         }
                         break;
                 case 2:
                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
+                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
                         for (i = 0; i < num_indices; i++) {
-                                if ((ss_info->info_2.asSpreadSpectrum[i].ucClockIndication == id) &&
-                                    (clock <= le32_to_cpu(ss_info->info_2.asSpreadSpectrum[i].ulTargetClockRange))) {
+                                if ((ss_assign->v2.ucClockIndication == id) &&
+                                    (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
                                         ss->percentage =
-                                                le16_to_cpu(ss_info->info_2.asSpreadSpectrum[i].usSpreadSpectrumPercentage);
-                                        ss->type = ss_info->info_2.asSpreadSpectrum[i].ucSpreadSpectrumMode;
-                                        ss->rate = le16_to_cpu(ss_info->info_2.asSpreadSpectrum[i].usSpreadRateIn10Hz);
+                                                le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
+                                        ss->type = ss_assign->v2.ucSpreadSpectrumMode;
+                                        ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
                                         if ((crev == 2) &&
                                             ((id == ASIC_INTERNAL_ENGINE_SS) ||
                                              (id == ASIC_INTERNAL_MEMORY_SS)))
                                                 ss->rate /= 100;
                                         return true;
                                 }
+                                ss_assign = (union asic_ss_assignment *)
+                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
                         }
                         break;
                 case 3:
                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
+                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
                         for (i = 0; i < num_indices; i++) {
-                                if ((ss_info->info_3.asSpreadSpectrum[i].ucClockIndication == id) &&
-                                    (clock <= le32_to_cpu(ss_info->info_3.asSpreadSpectrum[i].ulTargetClockRange))) {
+                                if ((ss_assign->v3.ucClockIndication == id) &&
+                                    (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
                                         ss->percentage =
-                                                le16_to_cpu(ss_info->info_3.asSpreadSpectrum[i].usSpreadSpectrumPercentage);
-                                        ss->type = ss_info->info_3.asSpreadSpectrum[i].ucSpreadSpectrumMode;
-                                        ss->rate = le16_to_cpu(ss_info->info_3.asSpreadSpectrum[i].usSpreadRateIn10Hz);
+                                                le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
+                                        ss->type = ss_assign->v3.ucSpreadSpectrumMode;
+                                        ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
                                         if ((id == ASIC_INTERNAL_ENGINE_SS) ||
                                             (id == ASIC_INTERNAL_MEMORY_SS))
                                                 ss->rate /= 100;
@@ -1555,6 +1573,8 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev,
                                                 radeon_atombios_get_igp_ss_overrides(rdev, ss, id);
                                         return true;
                                 }
+                                ss_assign = (union asic_ss_assignment *)
+                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
                         }
                         break;
                 default:
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index ac6ece61a476..66c222836631 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -85,8 +85,9 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
                    VRAM, also but everything into VRAM on AGP cards to avoid
                    image corruptions */
                 if (p->ring == R600_RING_TYPE_UVD_INDEX &&
-                    (i == 0 || p->rdev->flags & RADEON_IS_AGP)) {
-                        /* TODO: is this still needed for NI+ ? */
+                    p->rdev->family < CHIP_PALM &&
+                    (i == 0 || drm_pci_device_is_agp(p->rdev->ddev))) {
+
                         p->relocs[i].lobj.domain =
                                 RADEON_GEM_DOMAIN_VRAM;
 
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index e29faa73b574..841d0e09be3e 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1320,13 +1320,22 @@ int radeon_device_init(struct radeon_device *rdev,
                         return r;
         }
         if ((radeon_testing & 1)) {
-                radeon_test_moves(rdev);
+                if (rdev->accel_working)
+                        radeon_test_moves(rdev);
+                else
+                        DRM_INFO("radeon: acceleration disabled, skipping move tests\n");
         }
         if ((radeon_testing & 2)) {
-                radeon_test_syncing(rdev);
+                if (rdev->accel_working)
+                        radeon_test_syncing(rdev);
+                else
+                        DRM_INFO("radeon: acceleration disabled, skipping sync tests\n");
         }
         if (radeon_benchmarking) {
-                radeon_benchmark(rdev, radeon_benchmarking);
+                if (rdev->accel_working)
+                        radeon_benchmark(rdev, radeon_benchmarking);
+                else
+                        DRM_INFO("radeon: acceleration disabled, skipping benchmarks\n");
         }
         return 0;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 87e1d69e8fdb..ac07ad1d4f8c 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -1002,7 +1002,7 @@ static void radeon_pm_resume_old(struct radeon_device *rdev)
 {
         /* set up the default clocks if the MC ucode is loaded */
         if ((rdev->family >= CHIP_BARTS) &&
-            (rdev->family <= CHIP_HAINAN) &&
+            (rdev->family <= CHIP_CAYMAN) &&
             rdev->mc_fw) {
                 if (rdev->pm.default_vddc)
                         radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
@@ -1046,7 +1046,7 @@ static void radeon_pm_resume_dpm(struct radeon_device *rdev)
         if (ret) {
                 DRM_ERROR("radeon: dpm resume failed\n");
                 if ((rdev->family >= CHIP_BARTS) &&
-                    (rdev->family <= CHIP_HAINAN) &&
+                    (rdev->family <= CHIP_CAYMAN) &&
                     rdev->mc_fw) {
                         if (rdev->pm.default_vddc)
                                 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
@@ -1097,7 +1097,7 @@ static int radeon_pm_init_old(struct radeon_device *rdev)
                 radeon_pm_init_profile(rdev);
                 /* set up the default clocks if the MC ucode is loaded */
                 if ((rdev->family >= CHIP_BARTS) &&
-                    (rdev->family <= CHIP_HAINAN) &&
+                    (rdev->family <= CHIP_CAYMAN) &&
                     rdev->mc_fw) {
                         if (rdev->pm.default_vddc)
                                 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
@@ -1183,7 +1183,7 @@ static int radeon_pm_init_dpm(struct radeon_device *rdev)
         if (ret) {
                 rdev->pm.dpm_enabled = false;
                 if ((rdev->family >= CHIP_BARTS) &&
-                    (rdev->family <= CHIP_HAINAN) &&
+                    (rdev->family <= CHIP_CAYMAN) &&
                     rdev->mc_fw) {
                         if (rdev->pm.default_vddc)
                                 radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 46a25f037b84..18254e1c3e71 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -839,9 +839,11 @@ static int radeon_debugfs_ring_info(struct seq_file *m, void *data)
          * packet that is the root issue
          */
         i = (ring->rptr + ring->ptr_mask + 1 - 32) & ring->ptr_mask;
-        for (j = 0; j <= (count + 32); j++) {
-                seq_printf(m, "r[%5d]=0x%08x\n", i, ring->ring[i]);
-                i = (i + 1) & ring->ptr_mask;
+        if (ring->ready) {
+                for (j = 0; j <= (count + 32); j++) {
+                        seq_printf(m, "r[%5d]=0x%08x\n", i, ring->ring[i]);
+                        i = (i + 1) & ring->ptr_mask;
+                }
         }
         return 0;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index 1a01bbff9bfa..a0f11856ddde 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -476,8 +476,7 @@ static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
                 return -EINVAL;
         }
 
-        /* TODO: is this still necessary on NI+ ? */
-        if ((cmd == 0 || cmd == 0x3) &&
+        if (p->rdev->family < CHIP_PALM && (cmd == 0 || cmd == 0x3) &&
             (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
                 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
                           start, end);
diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index cfe5d4d28915..9ace28702c76 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -2910,6 +2910,7 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
         bool disable_sclk_switching = false;
         u32 mclk, sclk;
         u16 vddc, vddci;
+        u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc;
         int i;
 
         if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
@@ -2943,6 +2944,29 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
                 }
         }
 
+        /* limit clocks to max supported clocks based on voltage dependency tables */
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
+                                                        &max_sclk_vddc);
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
+                                                        &max_mclk_vddci);
+        btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
+                                                        &max_mclk_vddc);
+
+        for (i = 0; i < ps->performance_level_count; i++) {
+                if (max_sclk_vddc) {
+                        if (ps->performance_levels[i].sclk > max_sclk_vddc)
+                                ps->performance_levels[i].sclk = max_sclk_vddc;
+                }
+                if (max_mclk_vddci) {
+                        if (ps->performance_levels[i].mclk > max_mclk_vddci)
+                                ps->performance_levels[i].mclk = max_mclk_vddci;
+                }
+                if (max_mclk_vddc) {
+                        if (ps->performance_levels[i].mclk > max_mclk_vddc)
+                                ps->performance_levels[i].mclk = max_mclk_vddc;
+                }
+        }
+
         /* XXX validate the min clocks required for display */
 
         if (disable_mclk_switching) {
diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c b/drivers/gpu/drm/radeon/uvd_v1_0.c
index 7266805d9786..3100fa9cb52f 100644
--- a/drivers/gpu/drm/radeon/uvd_v1_0.c
+++ b/drivers/gpu/drm/radeon/uvd_v1_0.c
@@ -212,8 +212,8 @@ int uvd_v1_0_start(struct radeon_device *rdev)
         /* enable VCPU clock */
         WREG32(UVD_VCPU_CNTL,  1 << 9);
 
-        /* enable UMC */
-        WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
+        /* enable UMC and NC0 */
+        WREG32_P(UVD_LMI_CTRL2, 1 << 13, ~((1 << 8) | (1 << 13)));
 
         /* boot up the VCPU */
         WREG32(UVD_SOFT_RESET, 0);
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 8f4743ab5fb2..936093e0271e 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -195,7 +195,7 @@ int vmbus_connect(void)
 
         do {
                 ret = vmbus_negotiate_version(msginfo, version);
-                if (ret)
+                if (ret == -ETIMEDOUT)
                         goto cleanup;
 
                 if (vmbus_connection.conn_state == CONNECTED)
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 28b03325b872..09988b289622 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -32,13 +32,17 @@
 /*
  * Pre win8 version numbers used in ws2008 and ws 2008 r2 (win7)
  */
+#define WS2008_SRV_MAJOR        1
+#define WS2008_SRV_MINOR        0
+#define WS2008_SRV_VERSION     (WS2008_SRV_MAJOR << 16 | WS2008_SRV_MINOR)
+
 #define WIN7_SRV_MAJOR   3
 #define WIN7_SRV_MINOR   0
-#define WIN7_SRV_MAJOR_MINOR     (WIN7_SRV_MAJOR << 16 | WIN7_SRV_MINOR)
+#define WIN7_SRV_VERSION     (WIN7_SRV_MAJOR << 16 | WIN7_SRV_MINOR)
 
 #define WIN8_SRV_MAJOR   4
 #define WIN8_SRV_MINOR   0
-#define WIN8_SRV_MAJOR_MINOR     (WIN8_SRV_MAJOR << 16 | WIN8_SRV_MINOR)
+#define WIN8_SRV_VERSION     (WIN8_SRV_MAJOR << 16 | WIN8_SRV_MINOR)
 
 /*
  * Global state maintained for transaction that is being processed.
@@ -587,6 +591,8 @@ void hv_kvp_onchannelcallback(void *context)
 
         struct icmsg_hdr *icmsghdrp;
         struct icmsg_negotiate *negop = NULL;
+        int util_fw_version;
+        int kvp_srv_version;
 
         if (kvp_transaction.active) {
                 /*
@@ -606,17 +612,26 @@ void hv_kvp_onchannelcallback(void *context)
 
                 if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
                         /*
-                         * We start with win8 version and if the host cannot
-                         * support that we use the previous version.
+                         * Based on the host, select appropriate
+                         * framework and service versions we will
+                         * negotiate.
                          */
-                        if (vmbus_prep_negotiate_resp(icmsghdrp, negop,
-                                 recv_buffer, UTIL_FW_MAJOR_MINOR,
-                                 WIN8_SRV_MAJOR_MINOR))
-                                goto done;
-
+                        switch (vmbus_proto_version) {
+                        case (VERSION_WS2008):
+                                util_fw_version = UTIL_WS2K8_FW_VERSION;
+                                kvp_srv_version = WS2008_SRV_VERSION;
+                                break;
+                        case (VERSION_WIN7):
+                                util_fw_version = UTIL_FW_VERSION;
+                                kvp_srv_version = WIN7_SRV_VERSION;
+                                break;
+                        default:
+                                util_fw_version = UTIL_FW_VERSION;
+                                kvp_srv_version = WIN8_SRV_VERSION;
+                        }
                         vmbus_prep_negotiate_resp(icmsghdrp, negop,
-                                 recv_buffer, UTIL_FW_MAJOR_MINOR,
-                                 WIN7_SRV_MAJOR_MINOR);
+                                 recv_buffer, util_fw_version,
+                                 kvp_srv_version);
 
                 } else {
                         kvp_msg = (struct hv_kvp_msg *)&recv_buffer[
@@ -649,7 +664,6 @@ void hv_kvp_onchannelcallback(void *context)
                         return;
 
                 }
-done:
 
                 icmsghdrp->icflags = ICMSGHDRFLAG_TRANSACTION
                         | ICMSGHDRFLAG_RESPONSE;
diff --git a/drivers/hv/hv_snapshot.c b/drivers/hv/hv_snapshot.c
index e4572f3f2834..0c3546224376 100644
--- a/drivers/hv/hv_snapshot.c
+++ b/drivers/hv/hv_snapshot.c
@@ -26,7 +26,7 @@
 
 #define VSS_MAJOR  5
 #define VSS_MINOR  0
-#define VSS_MAJOR_MINOR    (VSS_MAJOR << 16 | VSS_MINOR)
+#define VSS_VERSION    (VSS_MAJOR << 16 | VSS_MINOR)
 
 
 
@@ -190,8 +190,8 @@ void hv_vss_onchannelcallback(void *context)
 
                 if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
                         vmbus_prep_negotiate_resp(icmsghdrp, negop,
-                                 recv_buffer, UTIL_FW_MAJOR_MINOR,
-                                 VSS_MAJOR_MINOR);
+                                 recv_buffer, UTIL_FW_VERSION,
+                                 VSS_VERSION);
                 } else {
                         vss_msg = (struct hv_vss_msg *)&recv_buffer[
                                 sizeof(struct vmbuspipe_hdr) +
diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index cb82233541b1..273e3ddb3a20 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -28,17 +28,32 @@
 #include <linux/reboot.h>
 #include <linux/hyperv.h>
 
-#define SHUTDOWN_MAJOR  3
-#define SHUTDOWN_MINOR  0
-#define SHUTDOWN_MAJOR_MINOR    (SHUTDOWN_MAJOR << 16 | SHUTDOWN_MINOR)
 
-#define TIMESYNCH_MAJOR 3
-#define TIMESYNCH_MINOR 0
-#define TIMESYNCH_MAJOR_MINOR   (TIMESYNCH_MAJOR << 16 | TIMESYNCH_MINOR)
+#define SD_MAJOR        3
+#define SD_MINOR        0
+#define SD_VERSION      (SD_MAJOR << 16 | SD_MINOR)
 
-#define HEARTBEAT_MAJOR 3
-#define HEARTBEAT_MINOR 0
-#define HEARTBEAT_MAJOR_MINOR   (HEARTBEAT_MAJOR << 16 | HEARTBEAT_MINOR)
+#define SD_WS2008_MAJOR         1
+#define SD_WS2008_VERSION       (SD_WS2008_MAJOR << 16 | SD_MINOR)
+
+#define TS_MAJOR        3
+#define TS_MINOR        0
+#define TS_VERSION      (TS_MAJOR << 16 | TS_MINOR)
+
+#define TS_WS2008_MAJOR         1
+#define TS_WS2008_VERSION       (TS_WS2008_MAJOR << 16 | TS_MINOR)
+
+#define HB_MAJOR        3
+#define HB_MINOR 0
+#define HB_VERSION      (HB_MAJOR << 16 | HB_MINOR)
+
+#define HB_WS2008_MAJOR 1
+#define HB_WS2008_VERSION       (HB_WS2008_MAJOR << 16 | HB_MINOR)
+
+static int sd_srv_version;
+static int ts_srv_version;
+static int hb_srv_version;
+static int util_fw_version;
 
 static void shutdown_onchannelcallback(void *context);
 static struct hv_util_service util_shutdown = {
@@ -99,8 +114,8 @@ static void shutdown_onchannelcallback(void *context)
 
                 if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
                         vmbus_prep_negotiate_resp(icmsghdrp, negop,
-                                        shut_txf_buf, UTIL_FW_MAJOR_MINOR,
-                                        SHUTDOWN_MAJOR_MINOR);
+                                        shut_txf_buf, util_fw_version,
+                                        sd_srv_version);
                 } else {
                         shutdown_msg =
                                 (struct shutdown_msg_data *)&shut_txf_buf[
@@ -216,6 +231,7 @@ static void timesync_onchannelcallback(void *context)
         struct icmsg_hdr *icmsghdrp;
         struct ictimesync_data *timedatap;
         u8 *time_txf_buf = util_timesynch.recv_buffer;
+        struct icmsg_negotiate *negop = NULL;
 
         vmbus_recvpacket(channel, time_txf_buf,
                          PAGE_SIZE, &recvlen, &requestid);
@@ -225,9 +241,10 @@ static void timesync_onchannelcallback(void *context)
                                 sizeof(struct vmbuspipe_hdr)];
 
                 if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
-                        vmbus_prep_negotiate_resp(icmsghdrp, NULL, time_txf_buf,
-                                                UTIL_FW_MAJOR_MINOR,
-                                                TIMESYNCH_MAJOR_MINOR);
+                        vmbus_prep_negotiate_resp(icmsghdrp, negop,
+                                                time_txf_buf,
+                                                util_fw_version,
+                                                ts_srv_version);
                 } else {
                         timedatap = (struct ictimesync_data *)&time_txf_buf[
                                 sizeof(struct vmbuspipe_hdr) +
@@ -257,6 +274,7 @@ static void heartbeat_onchannelcallback(void *context)
         struct icmsg_hdr *icmsghdrp;
         struct heartbeat_msg_data *heartbeat_msg;
         u8 *hbeat_txf_buf = util_heartbeat.recv_buffer;
+        struct icmsg_negotiate *negop = NULL;
 
         vmbus_recvpacket(channel, hbeat_txf_buf,
                          PAGE_SIZE, &recvlen, &requestid);
@@ -266,9 +284,9 @@ static void heartbeat_onchannelcallback(void *context)
                                 sizeof(struct vmbuspipe_hdr)];
 
                 if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
-                        vmbus_prep_negotiate_resp(icmsghdrp, NULL,
-                                hbeat_txf_buf, UTIL_FW_MAJOR_MINOR,
-                                HEARTBEAT_MAJOR_MINOR);
+                        vmbus_prep_negotiate_resp(icmsghdrp, negop,
+                                hbeat_txf_buf, util_fw_version,
+                                hb_srv_version);
                 } else {
                         heartbeat_msg =
                                 (struct heartbeat_msg_data *)&hbeat_txf_buf[
@@ -321,6 +339,25 @@ static int util_probe(struct hv_device *dev,
                 goto error;
 
         hv_set_drvdata(dev, srv);
+        /*
+         * Based on the host; initialize the framework and
+         * service version numbers we will negotiate.
+         */
+        switch (vmbus_proto_version) {
+        case (VERSION_WS2008):
+                util_fw_version = UTIL_WS2K8_FW_VERSION;
+                sd_srv_version = SD_WS2008_VERSION;
+                ts_srv_version = TS_WS2008_VERSION;
+                hb_srv_version = HB_WS2008_VERSION;
+                break;
+
+        default:
+                util_fw_version = UTIL_FW_VERSION;
+                sd_srv_version = SD_VERSION;
+                ts_srv_version = TS_VERSION;
+                hb_srv_version = HB_VERSION;
+        }
+
         return 0;
 
 error:
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 62c2e32e25ef..98814d12a604 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -525,16 +525,25 @@ static int applesmc_init_smcreg_try(void)
 {
         struct applesmc_registers *s = &smcreg;
         bool left_light_sensor, right_light_sensor;
+        unsigned int count;
         u8 tmp[1];
         int ret;
 
         if (s->init_complete)
                 return 0;
 
-        ret = read_register_count(&s->key_count);
+        ret = read_register_count(&count);
         if (ret)
                 return ret;
 
+        if (s->cache && s->key_count != count) {
+                pr_warn("key count changed from %d to %d\n",
+                        s->key_count, count);
+                kfree(s->cache);
+                s->cache = NULL;
+        }
+        s->key_count = count;
+
         if (!s->cache)
                 s->cache = kcalloc(s->key_count, sizeof(*s->cache), GFP_KERNEL);
         if (!s->cache)
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index dbecf08399f8..5888feef1ac5 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -98,6 +98,8 @@
 
 #define DW_IC_ERR_TX_ABRT       0x1
 
+#define DW_IC_TAR_10BITADDR_MASTER BIT(12)
+
 /*
  * status codes
  */
@@ -388,22 +390,34 @@ static int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev)
 static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
 {
         struct i2c_msg *msgs = dev->msgs;
-        u32 ic_con;
+        u32 ic_con, ic_tar = 0;
 
         /* Disable the adapter */
         __i2c_dw_enable(dev, false);
 
-        /* set the slave (target) address */
-        dw_writel(dev, msgs[dev->msg_write_idx].addr, DW_IC_TAR);
-
         /* if the slave address is ten bit address, enable 10BITADDR */
         ic_con = dw_readl(dev, DW_IC_CON);
-        if (msgs[dev->msg_write_idx].flags & I2C_M_TEN)
+        if (msgs[dev->msg_write_idx].flags & I2C_M_TEN) {
                 ic_con |= DW_IC_CON_10BITADDR_MASTER;
-        else
+                /*
+                 * If I2C_DYNAMIC_TAR_UPDATE is set, the 10-bit addressing
+                 * mode has to be enabled via bit 12 of IC_TAR register.
+                 * We set it always as I2C_DYNAMIC_TAR_UPDATE can't be
+                 * detected from registers.
+                 */
+                ic_tar = DW_IC_TAR_10BITADDR_MASTER;
+        } else {
                 ic_con &= ~DW_IC_CON_10BITADDR_MASTER;
+        }
+
         dw_writel(dev, ic_con, DW_IC_CON);
 
+        /*
+         * Set the slave (target) address and enable 10-bit addressing mode
+         * if applicable.
+         */
+        dw_writel(dev, msgs[dev->msg_write_idx].addr | ic_tar, DW_IC_TAR);
+
         /* Enable the adapter */
         __i2c_dw_enable(dev, true);
 
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index 8ed79a086f85..1672effbcebb 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -393,6 +393,9 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
 
         desc = &priv->hw[priv->head];
 
+        /* Initialize the DMA buffer */
+        memset(priv->dma_buffer, 0, sizeof(priv->dma_buffer));
+
         /* Initialize the descriptor */
         memset(desc, 0, sizeof(struct ismt_desc));
         desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, read_write);
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 7f3a47443494..d3e9cc3153a9 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -234,9 +234,9 @@ static int mv64xxx_i2c_offload_msg(struct mv64xxx_i2c_data *drv_data)
                 ctrl_reg |= MV64XXX_I2C_BRIDGE_CONTROL_WR |
                     (msg->len - 1) << MV64XXX_I2C_BRIDGE_CONTROL_TX_SIZE_SHIFT;
 
-                writel_relaxed(data_reg_lo,
+                writel(data_reg_lo,
                         drv_data->reg_base + MV64XXX_I2C_REG_TX_DATA_LO);
-                writel_relaxed(data_reg_hi,
+                writel(data_reg_hi,
                         drv_data->reg_base + MV64XXX_I2C_REG_TX_DATA_HI);
 
         } else {
@@ -697,6 +697,7 @@ static const struct of_device_id mv64xxx_i2c_of_match_table[] = {
 MODULE_DEVICE_TABLE(of, mv64xxx_i2c_of_match_table);
 
 #ifdef CONFIG_OF
+#ifdef CONFIG_HAVE_CLK
 static int
 mv64xxx_calc_freq(const int tclk, const int n, const int m)
 {
@@ -726,16 +727,12 @@ mv64xxx_find_baud_factors(const u32 req_freq, const u32 tclk, u32 *best_n,
                 return false;
         return true;
 }
+#endif /* CONFIG_HAVE_CLK */
 
 static int
 mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
                   struct device *dev)
 {
-        const struct of_device_id *device;
-        struct device_node *np = dev->of_node;
-        u32 bus_freq, tclk;
-        int rc = 0;
-
         /* CLK is mandatory when using DT to describe the i2c bus. We
          * need to know tclk in order to calculate bus clock
          * factors.
@@ -744,6 +741,11 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
         /* Have OF but no CLK */
         return -ENODEV;
 #else
+        const struct of_device_id *device;
+        struct device_node *np = dev->of_node;
+        u32 bus_freq, tclk;
+        int rc = 0;
+
         if (IS_ERR(drv_data->clk)) {
                 rc = -ENODEV;
                 goto out;
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 3535f3c0f7b4..3747b9bf67d6 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -1178,8 +1178,6 @@ static int s3c24xx_i2c_remove(struct platform_device *pdev)
 
         i2c_del_adapter(&i2c->adap);
 
-        clk_disable_unprepare(i2c->clk);
-
         if (pdev->dev.of_node && IS_ERR(i2c->pctrl))
                 s3c24xx_i2c_dt_gpio_free(i2c);
 
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 12e32e6b4103..81e3dc260993 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -620,7 +620,7 @@ static int bma180_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int bma180_suspend(struct device *dev)
 {
-        struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+        struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
         struct bma180_data *data = iio_priv(indio_dev);
         int ret;
 
@@ -633,7 +633,7 @@ static int bma180_suspend(struct device *dev)
 
 static int bma180_resume(struct device *dev)
 {
-        struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+        struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
         struct bma180_data *data = iio_priv(indio_dev);
         int ret;
 
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 84be63bdf038..0f16b553e063 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -556,7 +556,7 @@ static const struct iio_info at91_adc_info = {
 
 static int at91_adc_probe(struct platform_device *pdev)
 {
-        unsigned int prsc, mstrclk, ticks, adc_clk, shtim;
+        unsigned int prsc, mstrclk, ticks, adc_clk, adc_clk_khz, shtim;
         int ret;
         struct iio_dev *idev;
         struct at91_adc_state *st;
@@ -649,6 +649,7 @@ static int at91_adc_probe(struct platform_device *pdev)
          */
         mstrclk = clk_get_rate(st->clk);
         adc_clk = clk_get_rate(st->adc_clk);
+        adc_clk_khz = adc_clk / 1000;
         prsc = (mstrclk / (2 * adc_clk)) - 1;
 
         if (!st->startup_time) {
@@ -662,15 +663,15 @@ static int at91_adc_probe(struct platform_device *pdev)
          * defined in the electrical characteristics of the board, divided by 8.
          * The formula thus is : Startup Time = (ticks + 1) * 8 / ADC Clock
          */
-        ticks = round_up((st->startup_time * adc_clk /
-                          1000000) - 1, 8) / 8;
+        ticks = round_up((st->startup_time * adc_clk_khz /
+                          1000) - 1, 8) / 8;
         /*
          * a minimal Sample and Hold Time is necessary for the ADC to guarantee
          * the best converted final value between two channels selection
          * The formula thus is : Sample and Hold Time = (shtim + 1) / ADCClock
          */
-        shtim = round_up((st->sample_hold_time * adc_clk /
-                          1000000) - 1, 1);
+        shtim = round_up((st->sample_hold_time * adc_clk_khz /
+                          1000) - 1, 1);
 
         reg = AT91_ADC_PRESCAL_(prsc) & st->registers->mr_prescal_mask;
         reg |= AT91_ADC_STARTUP_(ticks) & st->registers->mr_startup_mask;
diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c
index 9d19ba74f22b..415f3c6efd72 100644
--- a/drivers/iio/buffer_cb.c
+++ b/drivers/iio/buffer_cb.c
@@ -41,6 +41,8 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
                 goto error_ret;
         }
 
+        iio_buffer_init(&cb_buff->buffer);
+
         cb_buff->private = private;
         cb_buff->cb = cb;
         cb_buff->buffer.access = &iio_cb_access;
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index 1f4a48e6a82c..1397b6e0e414 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -37,21 +37,21 @@ struct mcp4725_data {
 
 static int mcp4725_suspend(struct device *dev)
 {
-        struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-        struct mcp4725_data *data = iio_priv(indio_dev);
+        struct mcp4725_data *data = iio_priv(i2c_get_clientdata(
+                to_i2c_client(dev)));
         u8 outbuf[2];
 
         outbuf[0] = (data->powerdown_mode + 1) << 4;
         outbuf[1] = 0;
         data->powerdown = true;
 
-        return i2c_master_send(to_i2c_client(dev), outbuf, 2);
+        return i2c_master_send(data->client, outbuf, 2);
 }
 
 static int mcp4725_resume(struct device *dev)
 {
-        struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-        struct mcp4725_data *data = iio_priv(indio_dev);
+        struct mcp4725_data *data = iio_priv(i2c_get_clientdata(
+                to_i2c_client(dev)));
         u8 outbuf[2];
 
         /* restore previous DAC value */
@@ -59,7 +59,7 @@ static int mcp4725_resume(struct device *dev)
         outbuf[1] = data->dac_value & 0xff;
         data->powerdown = false;
 
-        return i2c_master_send(to_i2c_client(dev), outbuf, 2);
+        return i2c_master_send(data->client, outbuf, 2);
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
index 05c1b74502a3..9b32253b824b 100644
--- a/drivers/iio/iio_core.h
+++ b/drivers/iio/iio_core.h
@@ -49,11 +49,15 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
 #define iio_buffer_poll_addr (&iio_buffer_poll)
 #define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer)
 
+void iio_disable_all_buffers(struct iio_dev *indio_dev);
+
 #else
 
 #define iio_buffer_poll_addr NULL
 #define iio_buffer_read_first_n_outer_addr NULL
 
+static inline void iio_disable_all_buffers(struct iio_dev *indio_dev) {}
+
 #endif
 
 int iio_device_register_eventset(struct iio_dev *indio_dev);
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index e73033f3839a..2710f7245c3b 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -460,6 +460,25 @@ static int iio_compute_scan_bytes(struct iio_dev *indio_dev, const long *mask,
         return bytes;
 }
 
+void iio_disable_all_buffers(struct iio_dev *indio_dev)
+{
+        struct iio_buffer *buffer, *_buffer;
+
+        if (list_empty(&indio_dev->buffer_list))
+                return;
+
+        if (indio_dev->setup_ops->predisable)
+                indio_dev->setup_ops->predisable(indio_dev);
+
+        list_for_each_entry_safe(buffer, _buffer,
+                        &indio_dev->buffer_list, buffer_list)
+                list_del_init(&buffer->buffer_list);
+
+        indio_dev->currentmode = INDIO_DIRECT_MODE;
+        if (indio_dev->setup_ops->postdisable)
+                indio_dev->setup_ops->postdisable(indio_dev);
+}
+
 int iio_update_buffers(struct iio_dev *indio_dev,
                        struct iio_buffer *insert_buffer,
                        struct iio_buffer *remove_buffer)
@@ -528,8 +547,15 @@ int iio_update_buffers(struct iio_dev *indio_dev,
                          * Note can only occur when adding a buffer.
                          */
                         list_del(&insert_buffer->buffer_list);
-                        indio_dev->active_scan_mask = old_mask;
-                        success = -EINVAL;
+                        if (old_mask) {
+                                indio_dev->active_scan_mask = old_mask;
+                                success = -EINVAL;
+                        }
+                        else {
+                                kfree(compound_mask);
+                                ret = -EINVAL;
+                                goto error_ret;
+                        }
                 }
         } else {
                 indio_dev->active_scan_mask = compound_mask;
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 97f0297b120f..8e84cd522e49 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -848,8 +848,6 @@ static void iio_device_unregister_sysfs(struct iio_dev *indio_dev)
 static void iio_dev_release(struct device *device)
 {
         struct iio_dev *indio_dev = dev_to_iio_dev(device);
-        if (indio_dev->chrdev.dev)
-                cdev_del(&indio_dev->chrdev);
         if (indio_dev->modes & INDIO_BUFFER_TRIGGERED)
                 iio_device_unregister_trigger_consumer(indio_dev);
         iio_device_unregister_eventset(indio_dev);
@@ -970,6 +968,8 @@ static int iio_chrdev_open(struct inode *inode, struct file *filp)
         if (test_and_set_bit(IIO_BUSY_BIT_POS, &indio_dev->flags))
                 return -EBUSY;
 
+        iio_device_get(indio_dev);
+
         filp->private_data = indio_dev;
 
         return 0;
@@ -983,6 +983,8 @@ static int iio_chrdev_release(struct inode *inode, struct file *filp)
         struct iio_dev *indio_dev = container_of(inode->i_cdev,
                                                 struct iio_dev, chrdev);
         clear_bit(IIO_BUSY_BIT_POS, &indio_dev->flags);
+        iio_device_put(indio_dev);
+
         return 0;
 }
 
@@ -1052,18 +1054,20 @@ int iio_device_register(struct iio_dev *indio_dev)
                 indio_dev->setup_ops == NULL)
                 indio_dev->setup_ops = &noop_ring_setup_ops;
 
-        ret = device_add(&indio_dev->dev);
-        if (ret < 0)
-                goto error_unreg_eventset;
         cdev_init(&indio_dev->chrdev, &iio_buffer_fileops);
         indio_dev->chrdev.owner = indio_dev->info->driver_module;
+        indio_dev->chrdev.kobj.parent = &indio_dev->dev.kobj;
         ret = cdev_add(&indio_dev->chrdev, indio_dev->dev.devt, 1);
         if (ret < 0)
-                goto error_del_device;
-        return 0;
+                goto error_unreg_eventset;
 
-error_del_device:
-        device_del(&indio_dev->dev);
+        ret = device_add(&indio_dev->dev);
+        if (ret < 0)
+                goto error_cdev_del;
+
+        return 0;
+error_cdev_del:
+        cdev_del(&indio_dev->chrdev);
 error_unreg_eventset:
         iio_device_unregister_eventset(indio_dev);
 error_free_sysfs:
@@ -1078,9 +1082,16 @@ EXPORT_SYMBOL(iio_device_register);
 void iio_device_unregister(struct iio_dev *indio_dev)
 {
         mutex_lock(&indio_dev->info_exist_lock);
+
+        device_del(&indio_dev->dev);
+
+        if (indio_dev->chrdev.dev)
+                cdev_del(&indio_dev->chrdev);
+
+        iio_disable_all_buffers(indio_dev);
+
         indio_dev->info = NULL;
         mutex_unlock(&indio_dev->info_exist_lock);
-        device_del(&indio_dev->dev);
 }
 EXPORT_SYMBOL(iio_device_unregister);
 subsys_initcall(iio_init);
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 10aa9ef86cec..6be65ef5faa9 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -72,7 +72,8 @@ EXPORT_SYMBOL(iio_push_event);
 static unsigned int iio_event_poll(struct file *filep,
                              struct poll_table_struct *wait)
 {
-        struct iio_event_interface *ev_int = filep->private_data;
+        struct iio_dev *indio_dev = filep->private_data;
+        struct iio_event_interface *ev_int = indio_dev->event_interface;
         unsigned int events = 0;
 
         poll_wait(filep, &ev_int->wait, wait);
@@ -90,7 +91,8 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
                                      size_t count,
                                      loff_t *f_ps)
 {
-        struct iio_event_interface *ev_int = filep->private_data;
+        struct iio_dev *indio_dev = filep->private_data;
+        struct iio_event_interface *ev_int = indio_dev->event_interface;
         unsigned int copied;
         int ret;
 
@@ -121,7 +123,8 @@ error_unlock:
 
 static int iio_event_chrdev_release(struct inode *inode, struct file *filep)
 {
-        struct iio_event_interface *ev_int = filep->private_data;
+        struct iio_dev *indio_dev = filep->private_data;
+        struct iio_event_interface *ev_int = indio_dev->event_interface;
 
         spin_lock_irq(&ev_int->wait.lock);
         __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
@@ -133,6 +136,8 @@ static int iio_event_chrdev_release(struct inode *inode, struct file *filep)
         kfifo_reset_out(&ev_int->det_events);
         spin_unlock_irq(&ev_int->wait.lock);
 
+        iio_device_put(indio_dev);
+
         return 0;
 }
 
@@ -158,12 +163,15 @@ int iio_event_getfd(struct iio_dev *indio_dev)
                 return -EBUSY;
         }
         spin_unlock_irq(&ev_int->wait.lock);
-        fd = anon_inode_getfd("iio:event",
-                                &iio_event_chrdev_fileops, ev_int, O_RDONLY);
+        iio_device_get(indio_dev);
+
+        fd = anon_inode_getfd("iio:event", &iio_event_chrdev_fileops,
+                                indio_dev, O_RDONLY);
         if (fd < 0) {
                 spin_lock_irq(&ev_int->wait.lock);
                 __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
                 spin_unlock_irq(&ev_int->wait.lock);
+                iio_device_put(indio_dev);
         }
         return fd;
 }
@@ -276,7 +284,7 @@ static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
                         goto error_ret;
                 }
                 if (chan->modified)
-                        mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel,
+                        mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel2,
                                                   i/IIO_EV_DIR_MAX,
                                                   i%IIO_EV_DIR_MAX);
                 else if (chan->differential)
diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c
index 64ccde3f1f7a..6d63883da1ab 100644
--- a/drivers/iio/temperature/tmp006.c
+++ b/drivers/iio/temperature/tmp006.c
@@ -255,12 +255,14 @@ static int tmp006_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int tmp006_suspend(struct device *dev)
 {
-        return tmp006_powerdown(iio_priv(dev_to_iio_dev(dev)));
+        struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+        return tmp006_powerdown(iio_priv(indio_dev));
 }
 
 static int tmp006_resume(struct device *dev)
 {
-        struct tmp006_data *data = iio_priv(dev_to_iio_dev(dev));
+        struct tmp006_data *data = iio_priv(i2c_get_clientdata(
+                to_i2c_client(dev)));
         return i2c_smbus_write_word_swapped(data->client, TMP006_CONFIG,
                 data->config | TMP006_CONFIG_MOD_MASK);
 }
diff --git a/drivers/mailbox/mailbox-omap2.c b/drivers/mailbox/mailbox-omap2.c
index eba380d7b17f..42d2b893ea67 100644
--- a/drivers/mailbox/mailbox-omap2.c
+++ b/drivers/mailbox/mailbox-omap2.c
@@ -325,7 +325,6 @@ static int omap2_mbox_remove(struct platform_device *pdev)
         kfree(privblk);
         kfree(mboxblk);
         kfree(list);
-        platform_set_drvdata(pdev, NULL);
 
         return 0;
 }
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index b39f6f0b45f2..0f12382aa35d 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -498,7 +498,7 @@ struct cached_dev {
          */
         atomic_t                has_dirty;
 
-        struct ratelimit        writeback_rate;
+        struct bch_ratelimit    writeback_rate;
         struct delayed_work     writeback_rate_update;
 
         /*
@@ -507,10 +507,9 @@ struct cached_dev {
          */
         sector_t                last_read;
 
-        /* Number of writeback bios in flight */
-        atomic_t                in_flight;
+        /* Limit number of writeback bios in flight */
+        struct semaphore        in_flight;
         struct closure_with_timer writeback;
-        struct closure_waitlist writeback_wait;
 
         struct keybuf           writeback_keys;
 
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 8010eed06a51..22d1ae72c282 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -926,28 +926,45 @@ struct bkey *bch_next_recurse_key(struct btree *b, struct bkey *search)
 
 /* Mergesort */
 
+static void sort_key_next(struct btree_iter *iter,
+                          struct btree_iter_set *i)
+{
+        i->k = bkey_next(i->k);
+
+        if (i->k == i->end)
+                *i = iter->data[--iter->used];
+}
+
 static void btree_sort_fixup(struct btree_iter *iter)
 {
         while (iter->used > 1) {
                 struct btree_iter_set *top = iter->data, *i = top + 1;
-                struct bkey *k;
 
                 if (iter->used > 2 &&
                     btree_iter_cmp(i[0], i[1]))
                         i++;
 
-                for (k = i->k;
-                     k != i->end && bkey_cmp(top->k, &START_KEY(k)) > 0;
-                     k = bkey_next(k))
-                        if (top->k > i->k)
-                                __bch_cut_front(top->k, k);
-                        else if (KEY_SIZE(k))
-                                bch_cut_back(&START_KEY(k), top->k);
-
-                if (top->k < i->k || k == i->k)
+                if (bkey_cmp(top->k, &START_KEY(i->k)) <= 0)
                         break;
 
-                heap_sift(iter, i - top, btree_iter_cmp);
+                if (!KEY_SIZE(i->k)) {
+                        sort_key_next(iter, i);
+                        heap_sift(iter, i - top, btree_iter_cmp);
+                        continue;
+                }
+
+                if (top->k > i->k) {
+                        if (bkey_cmp(top->k, i->k) >= 0)
+                                sort_key_next(iter, i);
+                        else
+                                bch_cut_front(top->k, i->k);
+
+                        heap_sift(iter, i - top, btree_iter_cmp);
+                } else {
+                        /* can't happen because of comparison func */
+                        BUG_ON(!bkey_cmp(&START_KEY(top->k), &START_KEY(i->k)));
+                        bch_cut_back(&START_KEY(i->k), top->k);
+                }
         }
 }
 
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index f9764e61978b..f42fc7ed9cd6 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -255,7 +255,7 @@ void bch_btree_node_read(struct btree *b)
 
         return;
 err:
-        bch_cache_set_error(b->c, "io error reading bucket %lu",
+        bch_cache_set_error(b->c, "io error reading bucket %zu",
                             PTR_BUCKET_NR(b->c, &b->key, 0));
 }
 
@@ -612,7 +612,7 @@ static unsigned long bch_mca_scan(struct shrinker *shrink,
                 return SHRINK_STOP;
 
         /* Return -1 if we can't do anything right now */
-        if (sc->gfp_mask & __GFP_WAIT)
+        if (sc->gfp_mask & __GFP_IO)
                 mutex_lock(&c->bucket_lock);
         else if (!mutex_trylock(&c->bucket_lock))
                 return -1;
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index ba95ab84b2be..8435f81e5d85 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -153,7 +153,8 @@ int bch_journal_read(struct cache_set *c, struct list_head *list,
                 bitmap_zero(bitmap, SB_JOURNAL_BUCKETS);
                 pr_debug("%u journal buckets", ca->sb.njournal_buckets);
 
-                /* Read journal buckets ordered by golden ratio hash to quickly
+                /*
+                 * Read journal buckets ordered by golden ratio hash to quickly
                  * find a sequence of buckets with valid journal entries
                  */
                 for (i = 0; i < ca->sb.njournal_buckets; i++) {
@@ -166,18 +167,20 @@ int bch_journal_read(struct cache_set *c, struct list_head *list,
                                 goto bsearch;
                 }
 
-                /* If that fails, check all the buckets we haven't checked
+                /*
+                 * If that fails, check all the buckets we haven't checked
                  * already
                  */
                 pr_debug("falling back to linear search");
 
-                for (l = 0; l < ca->sb.njournal_buckets; l++) {
-                        if (test_bit(l, bitmap))
-                                continue;
-
+                for (l = find_first_zero_bit(bitmap, ca->sb.njournal_buckets);
+                     l < ca->sb.njournal_buckets;
+                     l = find_next_zero_bit(bitmap, ca->sb.njournal_buckets, l + 1))
                         if (read_bucket(l))
                                 goto bsearch;
-                }
+
+                if (list_empty(list))
+                        continue;
 bsearch:
                 /* Binary search */
                 m = r = find_next_bit(bitmap, ca->sb.njournal_buckets, l + 1);
@@ -197,10 +200,12 @@ bsearch:
                                 r = m;
                 }
 
-                /* Read buckets in reverse order until we stop finding more
+                /*
+                 * Read buckets in reverse order until we stop finding more
                  * journal entries
                  */
-                pr_debug("finishing up");
+                pr_debug("finishing up: m %u njournal_buckets %u",
+                         m, ca->sb.njournal_buckets);
                 l = m;
 
                 while (1) {
@@ -228,9 +233,10 @@ bsearch:
                         }
         }
 
-        c->journal.seq = list_entry(list->prev,
-                                    struct journal_replay,
-                                    list)->j.seq;
+        if (!list_empty(list))
+                c->journal.seq = list_entry(list->prev,
+                                            struct journal_replay,
+                                            list)->j.seq;
 
         return 0;
 #undef read_bucket
@@ -428,7 +434,7 @@ static void do_journal_discard(struct cache *ca)
                 return;
         }
 
-        switch (atomic_read(&ja->discard_in_flight) == DISCARD_IN_FLIGHT) {
+        switch (atomic_read(&ja->discard_in_flight)) {
         case DISCARD_IN_FLIGHT:
                 return;
 
@@ -689,6 +695,7 @@ void bch_journal_meta(struct cache_set *c, struct closure *cl)
                 if (cl)
                         BUG_ON(!closure_wait(&w->wait, cl));
 
+                closure_flush(&c->journal.io);
                 __journal_try_write(c, true);
         }
 }
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 786a1a4f74d8..71eb233b9ace 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -997,14 +997,17 @@ static void request_write(struct cached_dev *dc, struct search *s)
         } else {
                 bch_writeback_add(dc);
 
-                if (s->op.flush_journal) {
+                if (bio->bi_rw & REQ_FLUSH) {
                         /* Also need to send a flush to the backing device */
-                        s->op.cache_bio = bio_clone_bioset(bio, GFP_NOIO,
-                                                           dc->disk.bio_split);
+                        struct bio *flush = bio_alloc_bioset(0, GFP_NOIO,
+                                                             dc->disk.bio_split);
 
-                        bio->bi_size = 0;
-                        bio->bi_vcnt = 0;
-                        closure_bio_submit(bio, cl, s->d);
+                        flush->bi_rw    = WRITE_FLUSH;
+                        flush->bi_bdev  = bio->bi_bdev;
+                        flush->bi_end_io = request_endio;
+                        flush->bi_private = cl;
+
+                        closure_bio_submit(flush, cl, s->d);
                 } else {
                         s->op.cache_bio = bio;
                 }
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 4fe6ab2fbe2e..924dcfdae111 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -223,8 +223,13 @@ STORE(__cached_dev)
         }
 
         if (attr == &sysfs_label) {
-                /* note: endlines are preserved */
-                memcpy(dc->sb.label, buf, SB_LABEL_SIZE);
+                if (size > SB_LABEL_SIZE)
+                        return -EINVAL;
+                memcpy(dc->sb.label, buf, size);
+                if (size < SB_LABEL_SIZE)
+                        dc->sb.label[size] = '\0';
+                if (size && dc->sb.label[size - 1] == '\n')
+                        dc->sb.label[size - 1] = '\0';
                 bch_write_bdev_super(dc, NULL);
                 if (dc->disk.c) {
                         memcpy(dc->disk.c->uuids[dc->disk.id].label,
diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c
index 98eb81159a22..420dad545c7d 100644
--- a/drivers/md/bcache/util.c
+++ b/drivers/md/bcache/util.c
@@ -190,7 +190,16 @@ void bch_time_stats_update(struct time_stats *stats, uint64_t start_time)
         stats->last = now ?: 1;
 }
 
-unsigned bch_next_delay(struct ratelimit *d, uint64_t done)
+/**
+ * bch_next_delay() - increment @d by the amount of work done, and return how
+ * long to delay until the next time to do some work.
+ *
+ * @d - the struct bch_ratelimit to update
+ * @done - the amount of work done, in arbitrary units
+ *
+ * Returns the amount of time to delay by, in jiffies
+ */
+uint64_t bch_next_delay(struct bch_ratelimit *d, uint64_t done)
 {
         uint64_t now = local_clock();
 
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h
index 1ae2a73ad85f..ea345c6896f4 100644
--- a/drivers/md/bcache/util.h
+++ b/drivers/md/bcache/util.h
@@ -450,17 +450,23 @@ read_attribute(name ## _last_ ## frequency_units)
         (ewma) >> factor;                                               \
 })
 
-struct ratelimit {
+struct bch_ratelimit {
+        /* Next time we want to do some work, in nanoseconds */
         uint64_t                next;
+
+        /*
+         * Rate at which we want to do work, in units per nanosecond
+         * The units here correspond to the units passed to bch_next_delay()
+         */
         unsigned                rate;
 };
 
-static inline void ratelimit_reset(struct ratelimit *d)
+static inline void bch_ratelimit_reset(struct bch_ratelimit *d)
 {
         d->next = local_clock();
 }
 
-unsigned bch_next_delay(struct ratelimit *d, uint64_t done);
+uint64_t bch_next_delay(struct bch_ratelimit *d, uint64_t done);
 
 #define __DIV_SAFE(n, d, zero)                                          \
 ({                                                                      \
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 22cbff551628..ba3ee48320f2 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -94,11 +94,15 @@ static void update_writeback_rate(struct work_struct *work)
 
 static unsigned writeback_delay(struct cached_dev *dc, unsigned sectors)
 {
+        uint64_t ret;
+
         if (atomic_read(&dc->disk.detaching) ||
             !dc->writeback_percent)
                 return 0;
 
-        return bch_next_delay(&dc->writeback_rate, sectors * 10000000ULL);
+        ret = bch_next_delay(&dc->writeback_rate, sectors * 10000000ULL);
+
+        return min_t(uint64_t, ret, HZ);
 }
 
 /* Background writeback */
@@ -208,7 +212,7 @@ normal_refill:
 
         up_write(&dc->writeback_lock);
 
-        ratelimit_reset(&dc->writeback_rate);
+        bch_ratelimit_reset(&dc->writeback_rate);
 
         /* Punt to workqueue only so we don't recurse and blow the stack */
         continue_at(cl, read_dirty, dirty_wq);
@@ -318,9 +322,7 @@ static void write_dirty_finish(struct closure *cl)
         }
 
         bch_keybuf_del(&dc->writeback_keys, w);
-        atomic_dec_bug(&dc->in_flight);
-
-        closure_wake_up(&dc->writeback_wait);
+        up(&dc->in_flight);
 
         closure_return_with_destructor(cl, dirty_io_destructor);
 }
@@ -349,7 +351,7 @@ static void write_dirty(struct closure *cl)
 
         closure_bio_submit(&io->bio, cl, &io->dc->disk);
 
-        continue_at(cl, write_dirty_finish, dirty_wq);
+        continue_at(cl, write_dirty_finish, system_wq);
 }
 
 static void read_dirty_endio(struct bio *bio, int error)
@@ -369,7 +371,7 @@ static void read_dirty_submit(struct closure *cl)
 
         closure_bio_submit(&io->bio, cl, &io->dc->disk);
 
-        continue_at(cl, write_dirty, dirty_wq);
+        continue_at(cl, write_dirty, system_wq);
 }
 
 static void read_dirty(struct closure *cl)
@@ -394,12 +396,8 @@ static void read_dirty(struct closure *cl)
 
                 if (delay > 0 &&
                     (KEY_START(&w->key) != dc->last_read ||
-                     jiffies_to_msecs(delay) > 50)) {
-                        w->private = NULL;
-
-                        closure_delay(&dc->writeback, delay);
-                        continue_at(cl, read_dirty, dirty_wq);
-                }
+                     jiffies_to_msecs(delay) > 50))
+                        delay = schedule_timeout_uninterruptible(delay);
 
                 dc->last_read   = KEY_OFFSET(&w->key);
 
@@ -424,15 +422,10 @@ static void read_dirty(struct closure *cl)
 
                 trace_bcache_writeback(&w->key);
 
-                closure_call(&io->cl, read_dirty_submit, NULL, &dc->disk.cl);
+                down(&dc->in_flight);
+                closure_call(&io->cl, read_dirty_submit, NULL, cl);
 
                 delay = writeback_delay(dc, KEY_SIZE(&w->key));
-
-                atomic_inc(&dc->in_flight);
-
-                if (!closure_wait_event(&dc->writeback_wait, cl,
-                                        atomic_read(&dc->in_flight) < 64))
-                        continue_at(cl, read_dirty, dirty_wq);
         }
 
         if (0) {
@@ -442,7 +435,11 @@ err:
                 bch_keybuf_del(&dc->writeback_keys, w);
         }
 
-        refill_dirty(cl);
+        /*
+         * Wait for outstanding writeback IOs to finish (and keybuf slots to be
+         * freed) before refilling again
+         */
+        continue_at(cl, refill_dirty, dirty_wq);
 }
 
 /* Init */
@@ -484,6 +481,7 @@ void bch_sectors_dirty_init(struct cached_dev *dc)
 
 void bch_cached_dev_writeback_init(struct cached_dev *dc)
 {
+        sema_init(&dc->in_flight, 64);
         closure_init_unlocked(&dc->writeback);
         init_rwsem(&dc->writeback_lock);
 
@@ -513,7 +511,7 @@ void bch_writeback_exit(void)
 
 int __init bch_writeback_init(void)
 {
-        dirty_wq = create_singlethread_workqueue("bcache_writeback");
+        dirty_wq = create_workqueue("bcache_writeback");
         if (!dirty_wq)
                 return -ENOMEM;
 
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index ea49834377c8..2a20986a2fec 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -19,8 +19,6 @@
 #define DM_MSG_PREFIX "io"
 
 #define DM_IO_MAX_REGIONS       BITS_PER_LONG
-#define MIN_IOS         16
-#define MIN_BIOS        16
 
 struct dm_io_client {
         mempool_t *pool;
@@ -50,16 +48,17 @@ static struct kmem_cache *_dm_io_cache;
 struct dm_io_client *dm_io_client_create(void)
 {
         struct dm_io_client *client;
+        unsigned min_ios = dm_get_reserved_bio_based_ios();
 
         client = kmalloc(sizeof(*client), GFP_KERNEL);
         if (!client)
                 return ERR_PTR(-ENOMEM);
 
-        client->pool = mempool_create_slab_pool(MIN_IOS, _dm_io_cache);
+        client->pool = mempool_create_slab_pool(min_ios, _dm_io_cache);
         if (!client->pool)
                 goto bad;
 
-        client->bios = bioset_create(MIN_BIOS, 0);
+        client->bios = bioset_create(min_ios, 0);
         if (!client->bios)
                 goto bad;
 
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index b759a127f9c3..de570a558764 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -7,6 +7,7 @@
 
 #include <linux/device-mapper.h>
 
+#include "dm.h"
 #include "dm-path-selector.h"
 #include "dm-uevent.h"
 
@@ -116,8 +117,6 @@ struct dm_mpath_io {
 
 typedef int (*action_fn) (struct pgpath *pgpath);
 
-#define MIN_IOS 256     /* Mempool size */
-
 static struct kmem_cache *_mpio_cache;
 
 static struct workqueue_struct *kmultipathd, *kmpath_handlerd;
@@ -190,6 +189,7 @@ static void free_priority_group(struct priority_group *pg,
 static struct multipath *alloc_multipath(struct dm_target *ti)
 {
         struct multipath *m;
+        unsigned min_ios = dm_get_reserved_rq_based_ios();
 
         m = kzalloc(sizeof(*m), GFP_KERNEL);
         if (m) {
@@ -202,7 +202,7 @@ static struct multipath *alloc_multipath(struct dm_target *ti)
                 INIT_WORK(&m->trigger_event, trigger_event);
                 init_waitqueue_head(&m->pg_init_wait);
                 mutex_init(&m->work_mutex);
-                m->mpio_pool = mempool_create_slab_pool(MIN_IOS, _mpio_cache);
+                m->mpio_pool = mempool_create_slab_pool(min_ios, _mpio_cache);
                 if (!m->mpio_pool) {
                         kfree(m);
                         return NULL;
@@ -1268,6 +1268,7 @@ static int noretry_error(int error)
         case -EREMOTEIO:
         case -EILSEQ:
         case -ENODATA:
+        case -ENOSPC:
                 return 1;
         }
 
@@ -1298,8 +1299,17 @@ static int do_end_io(struct multipath *m, struct request *clone,
         if (!error && !clone->errors)
                 return 0;       /* I/O complete */
 
-        if (noretry_error(error))
+        if (noretry_error(error)) {
+                if ((clone->cmd_flags & REQ_WRITE_SAME) &&
+                    !clone->q->limits.max_write_same_sectors) {
+                        struct queue_limits *limits;
+
+                        /* device doesn't really support WRITE SAME, disable it */
+                        limits = dm_get_queue_limits(dm_table_get_md(m->ti->table));
+                        limits->max_write_same_sectors = 0;
+                }
                 return error;
+        }
 
         if (mpio->pgpath)
                 fail_path(mpio->pgpath);
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 3ac415675b6c..4caa8e6d59d7 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -256,7 +256,7 @@ static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int rw,
          */
         INIT_WORK_ONSTACK(&req.work, do_metadata);
         queue_work(ps->metadata_wq, &req.work);
-        flush_work(&req.work);
+        flush_workqueue(ps->metadata_wq);
 
         return req.result;
 }
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index c434e5aab2df..aec57d76db5d 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -725,17 +725,16 @@ static int calc_max_buckets(void)
  */
 static int init_hash_tables(struct dm_snapshot *s)
 {
-        sector_t hash_size, cow_dev_size, origin_dev_size, max_buckets;
+        sector_t hash_size, cow_dev_size, max_buckets;
 
         /*
          * Calculate based on the size of the original volume or
          * the COW volume...
          */
         cow_dev_size = get_dev_size(s->cow->bdev);
-        origin_dev_size = get_dev_size(s->origin->bdev);
         max_buckets = calc_max_buckets();
 
-        hash_size = min(origin_dev_size, cow_dev_size) >> s->store->chunk_shift;
+        hash_size = cow_dev_size >> s->store->chunk_shift;
         hash_size = min(hash_size, max_buckets);
 
         if (hash_size < 64)
diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
index 8ae31e8d3d64..3d404c1371ed 100644
--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -451,19 +451,26 @@ static void dm_stat_for_entry(struct dm_stat *s, size_t entry,
         struct dm_stat_percpu *p;
 
         /*
-         * For strict correctness we should use local_irq_disable/enable
+         * For strict correctness we should use local_irq_save/restore
          * instead of preempt_disable/enable.
          *
-         * This is racy if the driver finishes bios from non-interrupt
-         * context as well as from interrupt context or from more different
-         * interrupts.
+         * preempt_disable/enable is racy if the driver finishes bios
+         * from non-interrupt context as well as from interrupt context
+         * or from more different interrupts.
          *
-         * However, the race only results in not counting some events,
-         * so it is acceptable.
+         * On 64-bit architectures the race only results in not counting some
+         * events, so it is acceptable.  On 32-bit architectures the race could
+         * cause the counter going off by 2^32, so we need to do proper locking
+         * there.
          *
          * part_stat_lock()/part_stat_unlock() have this race too.
          */
+#if BITS_PER_LONG == 32
+        unsigned long flags;
+        local_irq_save(flags);
+#else
         preempt_disable();
+#endif
         p = &s->stat_percpu[smp_processor_id()][entry];
 
         if (!end) {
@@ -478,7 +485,11 @@ static void dm_stat_for_entry(struct dm_stat *s, size_t entry,
                 p->ticks[idx] += duration;
         }
 
+#if BITS_PER_LONG == 32
+        local_irq_restore(flags);
+#else
         preempt_enable();
+#endif
 }
 
 static void __dm_stat_bio(struct dm_stat *s, unsigned long bi_rw,
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index ed063427d676..2c0cf511ec23 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2095,6 +2095,7 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
          * them down to the data device.  The thin device's discard
          * processing will cause mappings to be removed from the btree.
          */
+        ti->discard_zeroes_data_unsupported = true;
         if (pf.discard_enabled && pf.discard_passdown) {
                 ti->num_discard_bios = 1;
 
@@ -2104,7 +2105,6 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
                  * thin devices' discard limits consistent).
                  */
                 ti->discards_supported = true;
-                ti->discard_zeroes_data_unsupported = true;
         }
         ti->private = pt;
 
@@ -2689,8 +2689,16 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
          * They get transferred to the live pool in bind_control_target()
          * called from pool_preresume().
          */
-        if (!pt->adjusted_pf.discard_enabled)
+        if (!pt->adjusted_pf.discard_enabled) {
+                /*
+                 * Must explicitly disallow stacking discard limits otherwise the
+                 * block layer will stack them if pool's data device has support.
+                 * QUEUE_FLAG_DISCARD wouldn't be set but there is no way for the
+                 * user to see that, so make sure to set all discard limits to 0.
+                 */
+                limits->discard_granularity = 0;
                 return;
+        }
 
         disable_passdown_if_not_supported(pt);
 
@@ -2826,10 +2834,10 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
         ti->per_bio_data_size = sizeof(struct dm_thin_endio_hook);
 
         /* In case the pool supports discards, pass them on. */
+        ti->discard_zeroes_data_unsupported = true;
         if (tc->pool->pf.discard_enabled) {
                 ti->discards_supported = true;
                 ti->num_discard_bios = 1;
-                ti->discard_zeroes_data_unsupported = true;
                 /* Discard bios must be split on a block boundary */
                 ti->split_discard_bios = true;
         }
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 6a5e9ed2fcc3..b3e26c7d1417 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -211,10 +211,55 @@ struct dm_md_mempools {
         struct bio_set *bs;
 };
 
-#define MIN_IOS 256
+#define RESERVED_BIO_BASED_IOS          16
+#define RESERVED_REQUEST_BASED_IOS      256
+#define RESERVED_MAX_IOS                1024
 static struct kmem_cache *_io_cache;
 static struct kmem_cache *_rq_tio_cache;
 
+/*
+ * Bio-based DM's mempools' reserved IOs set by the user.
+ */
+static unsigned reserved_bio_based_ios = RESERVED_BIO_BASED_IOS;
+
+/*
+ * Request-based DM's mempools' reserved IOs set by the user.
+ */
+static unsigned reserved_rq_based_ios = RESERVED_REQUEST_BASED_IOS;
+
+static unsigned __dm_get_reserved_ios(unsigned *reserved_ios,
+                                      unsigned def, unsigned max)
+{
+        unsigned ios = ACCESS_ONCE(*reserved_ios);
+        unsigned modified_ios = 0;
+
+        if (!ios)
+                modified_ios = def;
+        else if (ios > max)
+                modified_ios = max;
+
+        if (modified_ios) {
+                (void)cmpxchg(reserved_ios, ios, modified_ios);
+                ios = modified_ios;
+        }
+
+        return ios;
+}
+
+unsigned dm_get_reserved_bio_based_ios(void)
+{
+        return __dm_get_reserved_ios(&reserved_bio_based_ios,
+                                     RESERVED_BIO_BASED_IOS, RESERVED_MAX_IOS);
+}
+EXPORT_SYMBOL_GPL(dm_get_reserved_bio_based_ios);
+
+unsigned dm_get_reserved_rq_based_ios(void)
+{
+        return __dm_get_reserved_ios(&reserved_rq_based_ios,
+                                     RESERVED_REQUEST_BASED_IOS, RESERVED_MAX_IOS);
+}
+EXPORT_SYMBOL_GPL(dm_get_reserved_rq_based_ios);
+
 static int __init local_init(void)
 {
         int r = -ENOMEM;
@@ -2278,6 +2323,17 @@ struct target_type *dm_get_immutable_target_type(struct mapped_device *md)
 }
 
 /*
+ * The queue_limits are only valid as long as you have a reference
+ * count on 'md'.
+ */
+struct queue_limits *dm_get_queue_limits(struct mapped_device *md)
+{
+        BUG_ON(!atomic_read(&md->holders));
+        return &md->queue->limits;
+}
+EXPORT_SYMBOL_GPL(dm_get_queue_limits);
+
+/*
  * Fully initialize a request-based queue (->elevator, ->request_fn, etc).
  */
 static int dm_init_request_based_queue(struct mapped_device *md)
@@ -2862,18 +2918,18 @@ struct dm_md_mempools *dm_alloc_md_mempools(unsigned type, unsigned integrity, u
 
         if (type == DM_TYPE_BIO_BASED) {
                 cachep = _io_cache;
-                pool_size = 16;
+                pool_size = dm_get_reserved_bio_based_ios();
                 front_pad = roundup(per_bio_data_size, __alignof__(struct dm_target_io)) + offsetof(struct dm_target_io, clone);
         } else if (type == DM_TYPE_REQUEST_BASED) {
                 cachep = _rq_tio_cache;
-                pool_size = MIN_IOS;
+                pool_size = dm_get_reserved_rq_based_ios();
                 front_pad = offsetof(struct dm_rq_clone_bio_info, clone);
                 /* per_bio_data_size is not used. See __bind_mempools(). */
                 WARN_ON(per_bio_data_size != 0);
         } else
                 goto out;
 
-        pools->io_pool = mempool_create_slab_pool(MIN_IOS, cachep);
+        pools->io_pool = mempool_create_slab_pool(pool_size, cachep);
         if (!pools->io_pool)
                 goto out;
 
@@ -2924,6 +2980,13 @@ module_exit(dm_exit);
 
 module_param(major, uint, 0);
 MODULE_PARM_DESC(major, "The major number of the device mapper");
+
+module_param(reserved_bio_based_ios, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(reserved_bio_based_ios, "Reserved IOs in bio-based mempools");
+
+module_param(reserved_rq_based_ios, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(reserved_rq_based_ios, "Reserved IOs in request-based mempools");
+
 MODULE_DESCRIPTION(DM_NAME " driver");
 MODULE_AUTHOR("Joe Thornber <dm-devel@redhat.com>");
 MODULE_LICENSE("GPL");
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 5e604cc7b4aa..1d1ad7b7e527 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -184,6 +184,9 @@ void dm_free_md_mempools(struct dm_md_mempools *pools);
 /*
  * Helpers that are used by DM core
  */
+unsigned dm_get_reserved_bio_based_ios(void);
+unsigned dm_get_reserved_rq_based_ios(void);
+
 static inline bool dm_message_test_buffer_overflow(char *result, unsigned maxlen)
 {
         return !maxlen || strlen(result) + 1 >= maxlen;
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index d0fdc134068a..f6ff711aa5bb 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -57,6 +57,7 @@ void mei_amthif_reset_params(struct mei_device *dev)
         dev->iamthif_ioctl = false;
         dev->iamthif_state = MEI_IAMTHIF_IDLE;
         dev->iamthif_timer = 0;
+        dev->iamthif_stall_timer = 0;
 }
 
 /**
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 6d0282c08a06..cd2033cd7120 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -297,10 +297,13 @@ int __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length)
 
         if (cl->reading_state != MEI_READ_COMPLETE &&
             !waitqueue_active(&cl->rx_wait)) {
+
                 mutex_unlock(&dev->device_lock);
 
                 if (wait_event_interruptible(cl->rx_wait,
-                                (MEI_READ_COMPLETE == cl->reading_state))) {
+                                cl->reading_state == MEI_READ_COMPLETE  ||
+                                mei_cl_is_transitioning(cl))) {
+
                         if (signal_pending(current))
                                 return -EINTR;
                         return -ERESTARTSYS;
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 9eb031e92070..892cc4207fa2 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -90,6 +90,12 @@ static inline bool mei_cl_is_connected(struct mei_cl *cl)
                 cl->dev->dev_state == MEI_DEV_ENABLED &&
                 cl->state == MEI_FILE_CONNECTED);
 }
+static inline bool mei_cl_is_transitioning(struct mei_cl *cl)
+{
+        return (MEI_FILE_INITIALIZING == cl->state ||
+                MEI_FILE_DISCONNECTED == cl->state ||
+                MEI_FILE_DISCONNECTING == cl->state);
+}
 
 bool mei_cl_is_other_connecting(struct mei_cl *cl);
 int mei_cl_disconnect(struct mei_cl *cl);
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index 6127ab64bb39..0a0448326e9d 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -35,11 +35,15 @@ static void mei_hbm_me_cl_allocate(struct mei_device *dev)
         struct mei_me_client *clients;
         int b;
 
+        dev->me_clients_num = 0;
+        dev->me_client_presentation_num = 0;
+        dev->me_client_index = 0;
+
         /* count how many ME clients we have */
         for_each_set_bit(b, dev->me_clients_map, MEI_CLIENTS_MAX)
                 dev->me_clients_num++;
 
-        if (dev->me_clients_num <= 0)
+        if (dev->me_clients_num == 0)
                 return;
 
         kfree(dev->me_clients);
@@ -221,7 +225,7 @@ static int mei_hbm_prop_req(struct mei_device *dev)
         struct hbm_props_request *prop_req;
         const size_t len = sizeof(struct hbm_props_request);
         unsigned long next_client_index;
-        u8 client_num;
+        unsigned long client_num;
 
 
         client_num = dev->me_client_presentation_num;
@@ -677,8 +681,6 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
                 if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
                     dev->hbm_state == MEI_HBM_ENUM_CLIENTS) {
                                 dev->init_clients_timer = 0;
-                                dev->me_client_presentation_num = 0;
-                                dev->me_client_index = 0;
                                 mei_hbm_me_cl_allocate(dev);
                                 dev->hbm_state = MEI_HBM_CLIENT_PROPERTIES;
 
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 92c73118b13c..6197018e2f16 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -175,6 +175,9 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
                 memset(&dev->wr_ext_msg, 0, sizeof(dev->wr_ext_msg));
         }
 
+        /* we're already in reset, cancel the init timer */
+        dev->init_clients_timer = 0;
+
         dev->me_clients_num = 0;
         dev->rd_msg_hdr = 0;
         dev->wd_pending = false;
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 173ff095be0d..cabeddd66c1f 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -249,19 +249,16 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
                 mutex_unlock(&dev->device_lock);
 
                 if (wait_event_interruptible(cl->rx_wait,
-                        (MEI_READ_COMPLETE == cl->reading_state ||
-                         MEI_FILE_INITIALIZING == cl->state ||
-                         MEI_FILE_DISCONNECTED == cl->state ||
-                         MEI_FILE_DISCONNECTING == cl->state))) {
+                                MEI_READ_COMPLETE == cl->reading_state ||
+                                mei_cl_is_transitioning(cl))) {
+
                         if (signal_pending(current))
                                 return -EINTR;
                         return -ERESTARTSYS;
                 }
 
                 mutex_lock(&dev->device_lock);
-                if (MEI_FILE_INITIALIZING == cl->state ||
-                    MEI_FILE_DISCONNECTED == cl->state ||
-                    MEI_FILE_DISCONNECTING == cl->state) {
+                if (mei_cl_is_transitioning(cl)) {
                         rets = -EBUSY;
                         goto out;
                 }
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 7b918b2fb894..456b322013e2 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -396,9 +396,9 @@ struct mei_device {
         struct mei_me_client *me_clients; /* Note: memory has to be allocated */
         DECLARE_BITMAP(me_clients_map, MEI_CLIENTS_MAX);
         DECLARE_BITMAP(host_clients_map, MEI_CLIENTS_MAX);
-        u8 me_clients_num;
-        u8 me_client_presentation_num;
-        u8 me_client_index;
+        unsigned long me_clients_num;
+        unsigned long me_client_presentation_num;
+        unsigned long me_client_index;
 
         struct mei_cl wd_cl;
         enum mei_wd_states wd_state;
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 5db900d917f9..dd03dfdfb0d6 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1236,7 +1236,6 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
         return 0;
 }
 
-#ifdef CONFIG_OF
 static struct of_device_id pxa3xx_nand_dt_ids[] = {
         {
                 .compatible = "marvell,pxa3xx-nand",
@@ -1284,12 +1283,6 @@ static int pxa3xx_nand_probe_dt(struct platform_device *pdev)
 
         return 0;
 }
-#else
-static inline int pxa3xx_nand_probe_dt(struct platform_device *pdev)
-{
-        return 0;
-}
-#endif
 
 static int pxa3xx_nand_probe(struct platform_device *pdev)
 {
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 55bbb8b8200c..e883bfe2e727 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1724,6 +1724,7 @@ static int __bond_release_one(struct net_device *bond_dev,
         struct bonding *bond = netdev_priv(bond_dev);
         struct slave *slave, *oldcurrent;
         struct sockaddr addr;
+        int old_flags = bond_dev->flags;
         netdev_features_t old_features = bond_dev->features;
 
         /* slave is not a slave or master is not master of this slave */
@@ -1855,12 +1856,18 @@ static int __bond_release_one(struct net_device *bond_dev,
          * bond_change_active_slave(..., NULL)
          */
         if (!USES_PRIMARY(bond->params.mode)) {
-                /* unset promiscuity level from slave */
-                if (bond_dev->flags & IFF_PROMISC)
+                /* unset promiscuity level from slave
+                 * NOTE: The NETDEV_CHANGEADDR call above may change the value
+                 * of the IFF_PROMISC flag in the bond_dev, but we need the
+                 * value of that flag before that change, as that was the value
+                 * when this slave was attached, so we cache at the start of the
+                 * function and use it here. Same goes for ALLMULTI below
+                 */
+                if (old_flags & IFF_PROMISC)
                         dev_set_promiscuity(slave_dev, -1);
 
                 /* unset allmulti level from slave */
-                if (bond_dev->flags & IFF_ALLMULTI)
+                if (old_flags & IFF_ALLMULTI)
                         dev_set_allmulti(slave_dev, -1);
 
                 bond_hw_addr_flush(bond_dev, slave_dev);
diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index 3b1ff6148702..693d8ffe4653 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -1405,10 +1405,10 @@ static int at91_can_remove(struct platform_device *pdev)
 
 static const struct platform_device_id at91_can_id_table[] = {
         {
-                .name = "at91_can",
+                .name = "at91sam9x5_can",
                 .driver_data = (kernel_ulong_t)&at91_at91sam9x5_data,
         }, {
-                .name = "at91sam9x5_can",
+                .name = "at91_can",
                 .driver_data = (kernel_ulong_t)&at91_at91sam9263_data,
         }, {
                 /* sentinel */
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index f9cba4123c66..1870c4731a57 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -705,14 +705,14 @@ static size_t can_get_size(const struct net_device *dev)
         size_t size;
 
         size = nla_total_size(sizeof(u32));   /* IFLA_CAN_STATE */
-        size += sizeof(struct can_ctrlmode);  /* IFLA_CAN_CTRLMODE */
+        size += nla_total_size(sizeof(struct can_ctrlmode));  /* IFLA_CAN_CTRLMODE */
         size += nla_total_size(sizeof(u32));  /* IFLA_CAN_RESTART_MS */
-        size += sizeof(struct can_bittiming); /* IFLA_CAN_BITTIMING */
-        size += sizeof(struct can_clock);     /* IFLA_CAN_CLOCK */
+        size += nla_total_size(sizeof(struct can_bittiming)); /* IFLA_CAN_BITTIMING */
+        size += nla_total_size(sizeof(struct can_clock));     /* IFLA_CAN_CLOCK */
         if (priv->do_get_berr_counter)        /* IFLA_CAN_BERR_COUNTER */
-                size += sizeof(struct can_berr_counter);
+                size += nla_total_size(sizeof(struct can_berr_counter));
         if (priv->bittiming_const)            /* IFLA_CAN_BITTIMING_CONST */
-                size += sizeof(struct can_bittiming_const);
+                size += nla_total_size(sizeof(struct can_bittiming_const));
 
         return size;
 }
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 71c677e651d7..8f5ce747feb5 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -62,7 +62,7 @@
 #define FLEXCAN_MCR_BCC                 BIT(16)
 #define FLEXCAN_MCR_LPRIO_EN            BIT(13)
 #define FLEXCAN_MCR_AEN                 BIT(12)
-#define FLEXCAN_MCR_MAXMB(x)            ((x) & 0xf)
+#define FLEXCAN_MCR_MAXMB(x)            ((x) & 0x1f)
 #define FLEXCAN_MCR_IDAM_A              (0 << 8)
 #define FLEXCAN_MCR_IDAM_B              (1 << 8)
 #define FLEXCAN_MCR_IDAM_C              (2 << 8)
@@ -702,7 +702,6 @@ static int flexcan_chip_start(struct net_device *dev)
 {
         struct flexcan_priv *priv = netdev_priv(dev);
         struct flexcan_regs __iomem *regs = priv->base;
-        unsigned int i;
         int err;
         u32 reg_mcr, reg_ctrl;
 
@@ -736,9 +735,11 @@ static int flexcan_chip_start(struct net_device *dev)
          *
          */
         reg_mcr = flexcan_read(&regs->mcr);
+        reg_mcr &= ~FLEXCAN_MCR_MAXMB(0xff);
         reg_mcr |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_FEN | FLEXCAN_MCR_HALT |
                 FLEXCAN_MCR_SUPV | FLEXCAN_MCR_WRN_EN |
-                FLEXCAN_MCR_IDAM_C | FLEXCAN_MCR_SRX_DIS;
+                FLEXCAN_MCR_IDAM_C | FLEXCAN_MCR_SRX_DIS |
+                FLEXCAN_MCR_MAXMB(FLEXCAN_TX_BUF_ID);
         netdev_dbg(dev, "%s: writing mcr=0x%08x", __func__, reg_mcr);
         flexcan_write(reg_mcr, &regs->mcr);
 
@@ -772,16 +773,9 @@ static int flexcan_chip_start(struct net_device *dev)
         netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl);
         flexcan_write(reg_ctrl, &regs->ctrl);
 
-        for (i = 0; i < ARRAY_SIZE(regs->cantxfg); i++) {
-                flexcan_write(0, &regs->cantxfg[i].can_ctrl);
-                flexcan_write(0, &regs->cantxfg[i].can_id);
-                flexcan_write(0, &regs->cantxfg[i].data[0]);
-                flexcan_write(0, &regs->cantxfg[i].data[1]);
-
-                /* put MB into rx queue */
-                flexcan_write(FLEXCAN_MB_CNT_CODE(0x4),
-                        &regs->cantxfg[i].can_ctrl);
-        }
+        /* Abort any pending TX, mark Mailbox as INACTIVE */
+        flexcan_write(FLEXCAN_MB_CNT_CODE(0x4),
+                      &regs->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl);
 
         /* acceptance mask/acceptance code (accept everything) */
         flexcan_write(0x0, &regs->rxgmask);
@@ -991,9 +985,9 @@ static void unregister_flexcandev(struct net_device *dev)
 }
 
 static const struct of_device_id flexcan_of_match[] = {
-        { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
-        { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
         { .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, },
+        { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
+        { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
         { /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, flexcan_of_match);
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index 874188ba06f7..25377e547f9b 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -76,6 +76,10 @@ MODULE_PARM_DESC(maxdev, "Maximum number of slcan interfaces");
 /* maximum rx buffer len: extended CAN frame with timestamp */
 #define SLC_MTU (sizeof("T1111222281122334455667788EA5F\r")+1)
 
+#define SLC_CMD_LEN 1
+#define SLC_SFF_ID_LEN 3
+#define SLC_EFF_ID_LEN 8
+
 struct slcan {
         int                     magic;
 
@@ -142,47 +146,63 @@ static void slc_bump(struct slcan *sl)
 {
         struct sk_buff *skb;
         struct can_frame cf;
-        int i, dlc_pos, tmp;
-        unsigned long ultmp;
-        char cmd = sl->rbuff[0];
-
-        if ((cmd != 't') && (cmd != 'T') && (cmd != 'r') && (cmd != 'R'))
+        int i, tmp;
+        u32 tmpid;
+        char *cmd = sl->rbuff;
+
+        cf.can_id = 0;
+
+        switch (*cmd) {
+        case 'r':
+                cf.can_id = CAN_RTR_FLAG;
+                /* fallthrough */
+        case 't':
+                /* store dlc ASCII value and terminate SFF CAN ID string */
+                cf.can_dlc = sl->rbuff[SLC_CMD_LEN + SLC_SFF_ID_LEN];
+                sl->rbuff[SLC_CMD_LEN + SLC_SFF_ID_LEN] = 0;
+                /* point to payload data behind the dlc */
+                cmd += SLC_CMD_LEN + SLC_SFF_ID_LEN + 1;
+                break;
+        case 'R':
+                cf.can_id = CAN_RTR_FLAG;
+                /* fallthrough */
+        case 'T':
+                cf.can_id |= CAN_EFF_FLAG;
+                /* store dlc ASCII value and terminate EFF CAN ID string */
+                cf.can_dlc = sl->rbuff[SLC_CMD_LEN + SLC_EFF_ID_LEN];
+                sl->rbuff[SLC_CMD_LEN + SLC_EFF_ID_LEN] = 0;
+                /* point to payload data behind the dlc */
+                cmd += SLC_CMD_LEN + SLC_EFF_ID_LEN + 1;
+                break;
+        default:
                 return;
+        }
 
-        if (cmd & 0x20) /* tiny chars 'r' 't' => standard frame format */
-                dlc_pos = 4; /* dlc position tiiid */
-        else
-                dlc_pos = 9; /* dlc position Tiiiiiiiid */
-
-        if (!((sl->rbuff[dlc_pos] >= '0') && (sl->rbuff[dlc_pos] < '9')))
+        if (kstrtou32(sl->rbuff + SLC_CMD_LEN, 16, &tmpid))
                 return;
 
-        cf.can_dlc = sl->rbuff[dlc_pos] - '0'; /* get can_dlc from ASCII val */
+        cf.can_id |= tmpid;
 
-        sl->rbuff[dlc_pos] = 0; /* terminate can_id string */
-
-        if (kstrtoul(sl->rbuff+1, 16, &ultmp))
+        /* get can_dlc from sanitized ASCII value */
+        if (cf.can_dlc >= '0' && cf.can_dlc < '9')
+                cf.can_dlc -= '0';
+        else
                 return;
 
-        cf.can_id = ultmp;
-
-        if (!(cmd & 0x20)) /* NO tiny chars => extended frame format */
-                cf.can_id |= CAN_EFF_FLAG;
-
-        if ((cmd | 0x20) == 'r') /* RTR frame */
-                cf.can_id |= CAN_RTR_FLAG;
-
         *(u64 *) (&cf.data) = 0; /* clear payload */
 
-        for (i = 0, dlc_pos++; i < cf.can_dlc; i++) {
-                tmp = hex_to_bin(sl->rbuff[dlc_pos++]);
-                if (tmp < 0)
-                        return;
-                cf.data[i] = (tmp << 4);
-                tmp = hex_to_bin(sl->rbuff[dlc_pos++]);
-                if (tmp < 0)
-                        return;
-                cf.data[i] |= tmp;
+        /* RTR frames may have a dlc > 0 but they never have any data bytes */
+        if (!(cf.can_id & CAN_RTR_FLAG)) {
+                for (i = 0; i < cf.can_dlc; i++) {
+                        tmp = hex_to_bin(*cmd++);
+                        if (tmp < 0)
+                                return;
+                        cf.data[i] = (tmp << 4);
+                        tmp = hex_to_bin(*cmd++);
+                        if (tmp < 0)
+                                return;
+                        cf.data[i] |= tmp;
+                }
         }
 
         skb = dev_alloc_skb(sizeof(struct can_frame) +
@@ -209,7 +229,6 @@ static void slc_bump(struct slcan *sl)
 /* parse tty input stream */
 static void slcan_unesc(struct slcan *sl, unsigned char s)
 {
-
         if ((s == '\r') || (s == '\a')) { /* CR or BEL ends the pdu */
                 if (!test_and_clear_bit(SLF_ERROR, &sl->flags) &&
                     (sl->rcount > 4))  {
@@ -236,27 +255,46 @@ static void slcan_unesc(struct slcan *sl, unsigned char s)
 /* Encapsulate one can_frame and stuff into a TTY queue. */
 static void slc_encaps(struct slcan *sl, struct can_frame *cf)
 {
-        int actual, idx, i;
-        char cmd;
+        int actual, i;
+        unsigned char *pos;
+        unsigned char *endpos;
+        canid_t id = cf->can_id;
+
+        pos = sl->xbuff;
 
         if (cf->can_id & CAN_RTR_FLAG)
-                cmd = 'R'; /* becomes 'r' in standard frame format */
+                *pos = 'R'; /* becomes 'r' in standard frame format (SFF) */
         else
-                cmd = 'T'; /* becomes 't' in standard frame format */
+                *pos = 'T'; /* becomes 't' in standard frame format (SSF) */
 
-        if (cf->can_id & CAN_EFF_FLAG)
-                sprintf(sl->xbuff, "%c%08X%d", cmd,
-                        cf->can_id & CAN_EFF_MASK, cf->can_dlc);
-        else
-                sprintf(sl->xbuff, "%c%03X%d", cmd | 0x20,
-                        cf->can_id & CAN_SFF_MASK, cf->can_dlc);
+        /* determine number of chars for the CAN-identifier */
+        if (cf->can_id & CAN_EFF_FLAG) {
+                id &= CAN_EFF_MASK;
+                endpos = pos + SLC_EFF_ID_LEN;
+        } else {
+                *pos |= 0x20; /* convert R/T to lower case for SFF */
+                id &= CAN_SFF_MASK;
+                endpos = pos + SLC_SFF_ID_LEN;
+        }
 
-        idx = strlen(sl->xbuff);
+        /* build 3 (SFF) or 8 (EFF) digit CAN identifier */
+        pos++;
+        while (endpos >= pos) {
+                *endpos-- = hex_asc_upper[id & 0xf];
+                id >>= 4;
+        }
+
+        pos += (cf->can_id & CAN_EFF_FLAG) ? SLC_EFF_ID_LEN : SLC_SFF_ID_LEN;
 
-        for (i = 0; i < cf->can_dlc; i++)
-                sprintf(&sl->xbuff[idx + 2*i], "%02X", cf->data[i]);
+        *pos++ = cf->can_dlc + '0';
+
+        /* RTR frames may have a dlc > 0 but they never have any data bytes */
+        if (!(cf->can_id & CAN_RTR_FLAG)) {
+                for (i = 0; i < cf->can_dlc; i++)
+                        pos = hex_byte_pack_upper(pos, cf->data[i]);
+        }
 
-        strcat(sl->xbuff, "\r"); /* add terminating character */
+        *pos++ = '\r';
 
         /* Order of next two lines is *very* important.
          * When we are sending a little amount of data,
@@ -267,8 +305,8 @@ static void slc_encaps(struct slcan *sl, struct can_frame *cf)
          *       14 Oct 1994  Dmitry Gorodchanin.
          */
         set_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags);
-        actual = sl->tty->ops->write(sl->tty, sl->xbuff, strlen(sl->xbuff));
-        sl->xleft = strlen(sl->xbuff) - actual;
+        actual = sl->tty->ops->write(sl->tty, sl->xbuff, pos - sl->xbuff);
+        sl->xleft = (pos - sl->xbuff) - actual;
         sl->xhead = sl->xbuff + actual;
         sl->dev->stats.tx_bytes += cf->can_dlc;
 }
@@ -286,11 +324,13 @@ static void slcan_write_wakeup(struct tty_struct *tty)
         if (!sl || sl->magic != SLCAN_MAGIC || !netif_running(sl->dev))
                 return;
 
+        spin_lock(&sl->lock);
         if (sl->xleft <= 0)  {
                 /* Now serial buffer is almost free & we can start
                  * transmission of another packet */
                 sl->dev->stats.tx_packets++;
                 clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+                spin_unlock(&sl->lock);
                 netif_wake_queue(sl->dev);
                 return;
         }
@@ -298,6 +338,7 @@ static void slcan_write_wakeup(struct tty_struct *tty)
         actual = tty->ops->write(tty, sl->xhead, sl->xleft);
         sl->xleft -= actual;
         sl->xhead += actual;
+        spin_unlock(&sl->lock);
 }
 
 /* Send a can_frame to a TTY queue. */
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index a0f647f92bf5..0b7a4c3b01a2 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -463,7 +463,7 @@ static int peak_usb_start(struct peak_usb_device *dev)
         if (i < PCAN_USB_MAX_TX_URBS) {
                 if (i == 0) {
                         netdev_err(netdev, "couldn't setup any tx URB\n");
-                        return err;
+                        goto err_tx;
                 }
 
                 netdev_warn(netdev, "tx performance may be slow\n");
@@ -472,7 +472,7 @@ static int peak_usb_start(struct peak_usb_device *dev)
         if (dev->adapter->dev_start) {
                 err = dev->adapter->dev_start(dev);
                 if (err)
-                        goto failed;
+                        goto err_adapter;
         }
 
         dev->state |= PCAN_USB_STATE_STARTED;
@@ -481,19 +481,26 @@ static int peak_usb_start(struct peak_usb_device *dev)
         if (dev->adapter->dev_set_bus) {
                 err = dev->adapter->dev_set_bus(dev, 1);
                 if (err)
-                        goto failed;
+                        goto err_adapter;
         }
 
         dev->can.state = CAN_STATE_ERROR_ACTIVE;
 
         return 0;
 
-failed:
+err_adapter:
         if (err == -ENODEV)
                 netif_device_detach(dev->netdev);
 
         netdev_warn(netdev, "couldn't submit control: %d\n", err);
 
+        for (i = 0; i < PCAN_USB_MAX_TX_URBS; i++) {
+                usb_free_urb(dev->tx_contexts[i].urb);
+                dev->tx_contexts[i].urb = NULL;
+        }
+err_tx:
+        usb_kill_anchored_urbs(&dev->rx_submitted);
+
         return err;
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 61726af1de6e..e66beff2704d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2481,8 +2481,7 @@ load_error_cnic2:
 load_error_cnic1:
         bnx2x_napi_disable_cnic(bp);
         /* Update the number of queues without the cnic queues */
-        rc = bnx2x_set_real_num_queues(bp, 0);
-        if (rc)
+        if (bnx2x_set_real_num_queues(bp, 0))
                 BNX2X_ERR("Unable to set real_num_queues not including cnic\n");
 load_error_cnic0:
         BNX2X_ERR("CNIC-related load failed\n");
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index d60a2ea3da19..51468227bf3b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -175,6 +175,7 @@ typedef int (*read_sfp_module_eeprom_func_p)(struct bnx2x_phy *phy,
 #define EDC_MODE_LINEAR                         0x0022
 #define EDC_MODE_LIMITING                               0x0044
 #define EDC_MODE_PASSIVE_DAC                    0x0055
+#define EDC_MODE_ACTIVE_DAC                     0x0066
 
 /* ETS defines*/
 #define DCBX_INVALID_COS                                        (0xFF)
@@ -3684,6 +3685,41 @@ static void bnx2x_warpcore_enable_AN_KR2(struct bnx2x_phy *phy,
         bnx2x_update_link_attr(params, vars->link_attr_sync);
 }
 
+static void bnx2x_disable_kr2(struct link_params *params,
+                              struct link_vars *vars,
+                              struct bnx2x_phy *phy)
+{
+        struct bnx2x *bp = params->bp;
+        int i;
+        static struct bnx2x_reg_set reg_set[] = {
+                /* Step 1 - Program the TX/RX alignment markers */
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
+                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
+        };
+        DP(NETIF_MSG_LINK, "Disabling 20G-KR2\n");
+
+        for (i = 0; i < ARRAY_SIZE(reg_set); i++)
+                bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
+                                 reg_set[i].val);
+        vars->link_attr_sync &= ~LINK_ATTR_SYNC_KR2_ENABLE;
+        bnx2x_update_link_attr(params, vars->link_attr_sync);
+
+        vars->check_kr2_recovery_cnt = CHECK_KR2_RECOVERY_CNT;
+}
+
 static void bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy *phy,
                                                struct link_params *params)
 {
@@ -3715,7 +3751,6 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
                                         struct link_params *params,
                                         struct link_vars *vars) {
         u16 lane, i, cl72_ctrl, an_adv = 0;
-        u16 ucode_ver;
         struct bnx2x *bp = params->bp;
         static struct bnx2x_reg_set reg_set[] = {
                 {MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
@@ -3806,15 +3841,7 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
 
         /* Advertise pause */
         bnx2x_ext_phy_set_pause(params, phy, vars);
-        /* Set KR Autoneg Work-Around flag for Warpcore version older than D108
-         */
-        bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
-                        MDIO_WC_REG_UC_INFO_B1_VERSION, &ucode_ver);
-        if (ucode_ver < 0xd108) {
-                DP(NETIF_MSG_LINK, "Enable AN KR work-around. WC ver:0x%x\n",
-                               ucode_ver);
-                vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
-        }
+        vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
         bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
                                  MDIO_WC_REG_DIGITAL5_MISC7, 0x100);
 
@@ -3838,6 +3865,8 @@ static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
                 bnx2x_set_aer_mmd(params, phy);
 
                 bnx2x_warpcore_enable_AN_KR2(phy, params, vars);
+        } else {
+                bnx2x_disable_kr2(params, vars, phy);
         }
 
         /* Enable Autoneg: only on the main lane */
@@ -4347,20 +4376,14 @@ static void bnx2x_warpcore_config_runtime(struct bnx2x_phy *phy,
         struct bnx2x *bp = params->bp;
         u32 serdes_net_if;
         u16 gp_status1 = 0, lnkup = 0, lnkup_kr = 0;
-        u16 lane = bnx2x_get_warpcore_lane(phy, params);
 
         vars->turn_to_run_wc_rt = vars->turn_to_run_wc_rt ? 0 : 1;
 
         if (!vars->turn_to_run_wc_rt)
                 return;
 
-        /* Return if there is no link partner */
-        if (!(bnx2x_warpcore_get_sigdet(phy, params))) {
-                DP(NETIF_MSG_LINK, "bnx2x_warpcore_get_sigdet false\n");
-                return;
-        }
-
         if (vars->rx_tx_asic_rst) {
+                u16 lane = bnx2x_get_warpcore_lane(phy, params);
                 serdes_net_if = (REG_RD(bp, params->shmem_base +
                                 offsetof(struct shmem_region, dev_info.
                                 port_hw_config[params->port].default_cfg)) &
@@ -4375,14 +4398,8 @@ static void bnx2x_warpcore_config_runtime(struct bnx2x_phy *phy,
                                 /*10G KR*/
                         lnkup_kr = (gp_status1 >> (12+lane)) & 0x1;
 
-                        DP(NETIF_MSG_LINK,
-                                "gp_status1 0x%x\n", gp_status1);
-
                         if (lnkup_kr || lnkup) {
-                                        vars->rx_tx_asic_rst = 0;
-                                        DP(NETIF_MSG_LINK,
-                                        "link up, rx_tx_asic_rst 0x%x\n",
-                                        vars->rx_tx_asic_rst);
+                                vars->rx_tx_asic_rst = 0;
                         } else {
                                 /* Reset the lane to see if link comes up.*/
                                 bnx2x_warpcore_reset_lane(bp, phy, 1);
@@ -4507,10 +4524,14 @@ static void bnx2x_warpcore_config_init(struct bnx2x_phy *phy,
                          * enabled transmitter to avoid current leakage in case
                          * no module is connected
                          */
-                        if (bnx2x_is_sfp_module_plugged(phy, params))
-                                bnx2x_sfp_module_detection(phy, params);
-                        else
-                                bnx2x_sfp_e3_set_transmitter(params, phy, 1);
+                        if ((params->loopback_mode == LOOPBACK_NONE) ||
+                            (params->loopback_mode == LOOPBACK_EXT)) {
+                                if (bnx2x_is_sfp_module_plugged(phy, params))
+                                        bnx2x_sfp_module_detection(phy, params);
+                                else
+                                        bnx2x_sfp_e3_set_transmitter(params,
+                                                                     phy, 1);
+                        }
 
                         bnx2x_warpcore_config_sfi(phy, params);
                         break;
@@ -5757,6 +5778,11 @@ static int bnx2x_warpcore_read_status(struct bnx2x_phy *phy,
         rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, gp_speed,
                                          duplex);
 
+        /* In case of KR link down, start up the recovering procedure */
+        if ((!link_up) && (phy->media_type == ETH_PHY_KR) &&
+            (!(phy->flags & FLAGS_WC_DUAL_MODE)))
+                vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
+
         DP(NETIF_MSG_LINK, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
                    vars->duplex, vars->flow_ctrl, vars->link_status);
         return rc;
@@ -6507,6 +6533,11 @@ static int bnx2x_link_initialize(struct link_params *params,
                         params->phy[INT_PHY].config_init(phy, params, vars);
         }
 
+        /* Re-read this value in case it was changed inside config_init due to
+         * limitations of optic module
+         */
+        vars->line_speed = params->phy[INT_PHY].req_line_speed;
+
         /* Init external phy*/
         if (non_ext_phy) {
                 if (params->phy[INT_PHY].supported &
@@ -8080,7 +8111,10 @@ static int bnx2x_get_edc_mode(struct bnx2x_phy *phy,
                 if (copper_module_type &
                     SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE) {
                         DP(NETIF_MSG_LINK, "Active Copper cable detected\n");
-                        check_limiting_mode = 1;
+                        if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
+                                *edc_mode = EDC_MODE_ACTIVE_DAC;
+                        else
+                                check_limiting_mode = 1;
                 } else if (copper_module_type &
                         SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
                                 DP(NETIF_MSG_LINK,
@@ -8555,6 +8589,7 @@ static void bnx2x_warpcore_set_limiting_mode(struct link_params *params,
                 mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
                 break;
         case EDC_MODE_PASSIVE_DAC:
+        case EDC_MODE_ACTIVE_DAC:
                 mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_SFP_DAC;
                 break;
         default:
@@ -9730,32 +9765,41 @@ static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
                          MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
                          an_1000_val);
 
-        /* set 100 speed advertisement */
-        if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
-             (phy->speed_cap_mask &
-              (PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL |
-               PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF))) {
-                an_10_100_val |= (1<<7);
-                /* Enable autoneg and restart autoneg for legacy speeds */
-                autoneg_val |= (1<<9 | 1<<12);
-
-                if (phy->req_duplex == DUPLEX_FULL)
+        /* Set 10/100 speed advertisement */
+        if (phy->req_line_speed == SPEED_AUTO_NEG) {
+                if (phy->speed_cap_mask &
+                    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL) {
+                        /* Enable autoneg and restart autoneg for legacy speeds
+                         */
+                        autoneg_val |= (1<<9 | 1<<12);
                         an_10_100_val |= (1<<8);
-                DP(NETIF_MSG_LINK, "Advertising 100M\n");
-        }
-        /* set 10 speed advertisement */
-        if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
-             (phy->speed_cap_mask &
-              (PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL |
-               PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF)) &&
-             (phy->supported &
-              (SUPPORTED_10baseT_Half |
-               SUPPORTED_10baseT_Full)))) {
-                an_10_100_val |= (1<<5);
-                autoneg_val |= (1<<9 | 1<<12);
-                if (phy->req_duplex == DUPLEX_FULL)
+                        DP(NETIF_MSG_LINK, "Advertising 100M-FD\n");
+                }
+
+                if (phy->speed_cap_mask &
+                    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF) {
+                        /* Enable autoneg and restart autoneg for legacy speeds
+                         */
+                        autoneg_val |= (1<<9 | 1<<12);
+                        an_10_100_val |= (1<<7);
+                        DP(NETIF_MSG_LINK, "Advertising 100M-HD\n");
+                }
+
+                if ((phy->speed_cap_mask &
+                     PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
+                    (phy->supported & SUPPORTED_10baseT_Full)) {
                         an_10_100_val |= (1<<6);
-                DP(NETIF_MSG_LINK, "Advertising 10M\n");
+                        autoneg_val |= (1<<9 | 1<<12);
+                        DP(NETIF_MSG_LINK, "Advertising 10M-FD\n");
+                }
+
+                if ((phy->speed_cap_mask &
+                     PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF) &&
+                    (phy->supported & SUPPORTED_10baseT_Half)) {
+                        an_10_100_val |= (1<<5);
+                        autoneg_val |= (1<<9 | 1<<12);
+                        DP(NETIF_MSG_LINK, "Advertising 10M-HD\n");
+                }
         }
 
         /* Only 10/100 are allowed to work in FORCE mode */
@@ -13432,43 +13476,6 @@ static void bnx2x_sfp_tx_fault_detection(struct bnx2x_phy *phy,
                 }
         }
 }
-static void bnx2x_disable_kr2(struct link_params *params,
-                              struct link_vars *vars,
-                              struct bnx2x_phy *phy)
-{
-        struct bnx2x *bp = params->bp;
-        int i;
-        static struct bnx2x_reg_set reg_set[] = {
-                /* Step 1 - Program the TX/RX alignment markers */
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
-                {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
-        };
-        DP(NETIF_MSG_LINK, "Disabling 20G-KR2\n");
-
-        for (i = 0; i < ARRAY_SIZE(reg_set); i++)
-                bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
-                                 reg_set[i].val);
-        vars->link_attr_sync &= ~LINK_ATTR_SYNC_KR2_ENABLE;
-        bnx2x_update_link_attr(params, vars->link_attr_sync);
-
-        vars->check_kr2_recovery_cnt = CHECK_KR2_RECOVERY_CNT;
-        /* Restart AN on leading lane */
-        bnx2x_warpcore_restart_AN_KR(phy, params);
-}
-
 static void bnx2x_kr2_recovery(struct link_params *params,
                                struct link_vars *vars,
                                struct bnx2x_phy *phy)
@@ -13546,6 +13553,8 @@ static void bnx2x_check_kr2_wa(struct link_params *params,
                 /* Disable KR2 on both lanes */
                 DP(NETIF_MSG_LINK, "BP=0x%x, NP=0x%x\n", base_page, next_page);
                 bnx2x_disable_kr2(params, vars, phy);
+                /* Restart AN on leading lane */
+                bnx2x_warpcore_restart_AN_KR(phy, params);
                 return;
         }
 }
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index a6704b555042..82b658d8c04c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -4703,6 +4703,14 @@ bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print)
         attn.sig[3] = REG_RD(bp,
                 MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 +
                              port*4);
+        /* Since MCP attentions can't be disabled inside the block, we need to
+         * read AEU registers to see whether they're currently disabled
+         */
+        attn.sig[3] &= ((REG_RD(bp,
+                                !port ? MISC_REG_AEU_ENABLE4_FUNC_0_OUT_0
+                                      : MISC_REG_AEU_ENABLE4_FUNC_1_OUT_0) &
+                         MISC_AEU_ENABLE_MCP_PRTY_BITS) |
+                        ~MISC_AEU_ENABLE_MCP_PRTY_BITS);
 
         if (!CHIP_IS_E1x(bp))
                 attn.sig[4] = REG_RD(bp,
@@ -5447,26 +5455,24 @@ static void bnx2x_timer(unsigned long data)
         if (IS_PF(bp) &&
             !BP_NOMCP(bp)) {
                 int mb_idx = BP_FW_MB_IDX(bp);
-                u32 drv_pulse;
-                u32 mcp_pulse;
+                u16 drv_pulse;
+                u16 mcp_pulse;
 
                 ++bp->fw_drv_pulse_wr_seq;
                 bp->fw_drv_pulse_wr_seq &= DRV_PULSE_SEQ_MASK;
-                /* TBD - add SYSTEM_TIME */
                 drv_pulse = bp->fw_drv_pulse_wr_seq;
                 bnx2x_drv_pulse(bp);
 
                 mcp_pulse = (SHMEM_RD(bp, func_mb[mb_idx].mcp_pulse_mb) &
                              MCP_PULSE_SEQ_MASK);
                 /* The delta between driver pulse and mcp response
-                 * should be 1 (before mcp response) or 0 (after mcp response)
+                 * should not get too big. If the MFW is more than 5 pulses
+                 * behind, we should worry about it enough to generate an error
+                 * log.
                  */
-                if ((drv_pulse != mcp_pulse) &&
-                    (drv_pulse != ((mcp_pulse + 1) & MCP_PULSE_SEQ_MASK))) {
-                        /* someone lost a heartbeat... */
-                        BNX2X_ERR("drv_pulse (0x%x) != mcp_pulse (0x%x)\n",
+                if (((drv_pulse - mcp_pulse) & MCP_PULSE_SEQ_MASK) > 5)
+                        BNX2X_ERR("MFW seems hanged: drv_pulse (0x%x) != mcp_pulse (0x%x)\n",
                                   drv_pulse, mcp_pulse);
-                }
         }
 
         if (bp->state == BNX2X_STATE_OPEN)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 2604b6204abe..9ad012bdd915 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -1819,7 +1819,7 @@ bnx2x_get_vf_igu_cam_info(struct bnx2x *bp)
                 fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
                 if (fid & IGU_FID_ENCODE_IS_PF)
                         current_pf = fid & IGU_FID_PF_NUM_MASK;
-                else if (current_pf == BP_ABS_FUNC(bp))
+                else if (current_pf == BP_FUNC(bp))
                         bnx2x_vf_set_igu_info(bp, sb_id,
                                               (fid & IGU_FID_VF_NUM_MASK));
                 DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
@@ -3180,6 +3180,7 @@ int bnx2x_enable_sriov(struct bnx2x *bp)
                 /* set local queue arrays */
                 vf->vfqs = &bp->vfdb->vfqs[qcount];
                 qcount += vf_sb_count(vf);
+                bnx2x_iov_static_resc(bp, vf);
         }
 
         /* prepare msix vectors in VF configuration space */
@@ -3187,6 +3188,8 @@ int bnx2x_enable_sriov(struct bnx2x *bp)
                 bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf_idx));
                 REG_WR(bp, PCICFG_OFFSET + GRC_CONFIG_REG_VF_MSIX_CONTROL,
                        num_vf_queues);
+                DP(BNX2X_MSG_IOV, "set msix vec num in VF %d cfg space to %d\n",
+                   vf_idx, num_vf_queues);
         }
         bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index 6cfb88732452..da16953eb2ec 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -1765,28 +1765,28 @@ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
                 switch (mbx->first_tlv.tl.type) {
                 case CHANNEL_TLV_ACQUIRE:
                         bnx2x_vf_mbx_acquire(bp, vf, mbx);
-                        break;
+                        return;
                 case CHANNEL_TLV_INIT:
                         bnx2x_vf_mbx_init_vf(bp, vf, mbx);
-                        break;
+                        return;
                 case CHANNEL_TLV_SETUP_Q:
                         bnx2x_vf_mbx_setup_q(bp, vf, mbx);
-                        break;
+                        return;
                 case CHANNEL_TLV_SET_Q_FILTERS:
                         bnx2x_vf_mbx_set_q_filters(bp, vf, mbx);
-                        break;
+                        return;
                 case CHANNEL_TLV_TEARDOWN_Q:
                         bnx2x_vf_mbx_teardown_q(bp, vf, mbx);
-                        break;
+                        return;
                 case CHANNEL_TLV_CLOSE:
                         bnx2x_vf_mbx_close_vf(bp, vf, mbx);
-                        break;
+                        return;
                 case CHANNEL_TLV_RELEASE:
                         bnx2x_vf_mbx_release_vf(bp, vf, mbx);
-                        break;
+                        return;
                 case CHANNEL_TLV_UPDATE_RSS:
                         bnx2x_vf_mbx_update_rss(bp, vf, mbx);
-                        break;
+                        return;
                 }
 
         } else {
@@ -1802,26 +1802,24 @@ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
                 for (i = 0; i < 20; i++)
                         DP_CONT(BNX2X_MSG_IOV, "%x ",
                                 mbx->msg->req.tlv_buf_size.tlv_buffer[i]);
+        }
 
-                /* test whether we can respond to the VF (do we have an address
-                 * for it?)
-                 */
-                if (vf->state == VF_ACQUIRED || vf->state == VF_ENABLED) {
-                        /* mbx_resp uses the op_rc of the VF */
-                        vf->op_rc = PFVF_STATUS_NOT_SUPPORTED;
+        /* can we respond to VF (do we have an address for it?) */
+        if (vf->state == VF_ACQUIRED || vf->state == VF_ENABLED) {
+                /* mbx_resp uses the op_rc of the VF */
+                vf->op_rc = PFVF_STATUS_NOT_SUPPORTED;
 
-                        /* notify the VF that we do not support this request */
-                        bnx2x_vf_mbx_resp(bp, vf);
-                } else {
-                        /* can't send a response since this VF is unknown to us
-                         * just ack the FW to release the mailbox and unlock
-                         * the channel.
-                         */
-                        storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
-                        mmiowb();
-                        bnx2x_unlock_vf_pf_channel(bp, vf,
-                                                   mbx->first_tlv.tl.type);
-                }
+                /* notify the VF that we do not support this request */
+                bnx2x_vf_mbx_resp(bp, vf);
+        } else {
+                /* can't send a response since this VF is unknown to us
+                 * just ack the FW to release the mailbox and unlock
+                 * the channel.
+                 */
+                storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
+                /* Firmware ack should be written before unlocking channel */
+                mmiowb();
+                bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
         }
 }
 
diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index 78d6d6b970e1..48f52882a22b 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -106,7 +106,6 @@
 #define XGMAC_DMA_HW_FEATURE    0x00000f58      /* Enabled Hardware Features */
 
 #define XGMAC_ADDR_AE           0x80000000
-#define XGMAC_MAX_FILTER_ADDR   31
 
 /* PMT Control and Status */
 #define XGMAC_PMT_POINTER_RESET 0x80000000
@@ -384,6 +383,7 @@ struct xgmac_priv {
         struct device *device;
         struct napi_struct napi;
 
+        int max_macs;
         struct xgmac_extra_stats xstats;
 
         spinlock_t stats_lock;
@@ -1291,14 +1291,12 @@ static void xgmac_set_rx_mode(struct net_device *dev)
         netdev_dbg(priv->dev, "# mcasts %d, # unicast %d\n",
                  netdev_mc_count(dev), netdev_uc_count(dev));
 
-        if (dev->flags & IFF_PROMISC) {
-                writel(XGMAC_FRAME_FILTER_PR, ioaddr + XGMAC_FRAME_FILTER);
-                return;
-        }
+        if (dev->flags & IFF_PROMISC)
+                value |= XGMAC_FRAME_FILTER_PR;
 
         memset(hash_filter, 0, sizeof(hash_filter));
 
-        if (netdev_uc_count(dev) > XGMAC_MAX_FILTER_ADDR) {
+        if (netdev_uc_count(dev) > priv->max_macs) {
                 use_hash = true;
                 value |= XGMAC_FRAME_FILTER_HUC | XGMAC_FRAME_FILTER_HPF;
         }
@@ -1321,7 +1319,7 @@ static void xgmac_set_rx_mode(struct net_device *dev)
                 goto out;
         }
 
-        if ((netdev_mc_count(dev) + reg - 1) > XGMAC_MAX_FILTER_ADDR) {
+        if ((netdev_mc_count(dev) + reg - 1) > priv->max_macs) {
                 use_hash = true;
                 value |= XGMAC_FRAME_FILTER_HMC | XGMAC_FRAME_FILTER_HPF;
         } else {
@@ -1342,8 +1340,8 @@ static void xgmac_set_rx_mode(struct net_device *dev)
         }
 
 out:
-        for (i = reg; i < XGMAC_MAX_FILTER_ADDR; i++)
-                xgmac_set_mac_addr(ioaddr, NULL, reg);
+        for (i = reg; i <= priv->max_macs; i++)
+                xgmac_set_mac_addr(ioaddr, NULL, i);
         for (i = 0; i < XGMAC_NUM_HASH; i++)
                 writel(hash_filter[i], ioaddr + XGMAC_HASH(i));
 
@@ -1761,6 +1759,13 @@ static int xgmac_probe(struct platform_device *pdev)
         uid = readl(priv->base + XGMAC_VERSION);
         netdev_info(ndev, "h/w version is 0x%x\n", uid);
 
+        /* Figure out how many valid mac address filter registers we have */
+        writel(1, priv->base + XGMAC_ADDR_HIGH(31));
+        if (readl(priv->base + XGMAC_ADDR_HIGH(31)) == 1)
+                priv->max_macs = 31;
+        else
+                priv->max_macs = 7;
+
         writel(0, priv->base + XGMAC_DMA_INTR_ENA);
         ndev->irq = platform_get_irq(pdev, 0);
         if (ndev->irq == -ENXIO) {
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index ace5050dba38..db020230bd0b 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -88,6 +88,7 @@ static inline char *nic_name(struct pci_dev *pdev)
 #define BE_MIN_MTU              256
 
 #define BE_NUM_VLANS_SUPPORTED  64
+#define BE_UMC_NUM_VLANS_SUPPORTED      15
 #define BE_MAX_EQD              96u
 #define BE_MAX_TX_FRAG_COUNT    30
 
@@ -333,6 +334,7 @@ enum vf_state {
 
 #define BE_FLAGS_LINK_STATUS_INIT               1
 #define BE_FLAGS_WORKER_SCHEDULED               (1 << 3)
+#define BE_FLAGS_VLAN_PROMISC                   (1 << 4)
 #define BE_FLAGS_NAPI_ENABLED                   (1 << 9)
 #define BE_UC_PMAC_COUNT                30
 #define BE_VF_UC_PMAC_COUNT             2
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 1ab5dab11eff..bd0e0c0bbcd8 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -180,6 +180,9 @@ static int be_mcc_compl_process(struct be_adapter *adapter,
                         dev_err(&adapter->pdev->dev,
                                 "opcode %d-%d failed:status %d-%d\n",
                                 opcode, subsystem, compl_status, extd_status);
+
+                        if (extd_status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
+                                return extd_status;
                 }
         }
 done:
@@ -1812,6 +1815,12 @@ int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 value)
         } else if (flags & IFF_ALLMULTI) {
                 req->if_flags_mask = req->if_flags =
                                 cpu_to_le32(BE_IF_FLAGS_MCAST_PROMISCUOUS);
+        } else if (flags & BE_FLAGS_VLAN_PROMISC) {
+                req->if_flags_mask = cpu_to_le32(BE_IF_FLAGS_VLAN_PROMISCUOUS);
+
+                if (value == ON)
+                        req->if_flags =
+                                cpu_to_le32(BE_IF_FLAGS_VLAN_PROMISCUOUS);
         } else {
                 struct netdev_hw_addr *ha;
                 int i = 0;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index d026226db88c..108ca8abf0af 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -60,6 +60,8 @@ enum {
         MCC_STATUS_NOT_SUPPORTED = 66
 };
 
+#define MCC_ADDL_STS_INSUFFICIENT_RESOURCES     0x16
+
 #define CQE_STATUS_COMPL_MASK           0xFFFF
 #define CQE_STATUS_COMPL_SHIFT          0       /* bits 0 - 15 */
 #define CQE_STATUS_EXTD_MASK            0xFFFF
@@ -1791,7 +1793,7 @@ struct be_nic_res_desc {
         u8 acpi_params;
         u8 wol_param;
         u16 rsvd7;
-        u32 rsvd8[3];
+        u32 rsvd8[7];
 } __packed;
 
 struct be_cmd_req_get_func_config {
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 100b528b9bd0..2c38cc402119 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -855,11 +855,11 @@ static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
         unsigned int eth_hdr_len;
         struct iphdr *ip;
 
-        /* Lancer ASIC has a bug wherein packets that are 32 bytes or less
+        /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or less
          * may cause a transmit stall on that port. So the work-around is to
-         * pad such packets to a 36-byte length.
+         * pad short packets (<= 32 bytes) to a 36-byte length.
          */
-        if (unlikely(lancer_chip(adapter) && skb->len <= 32)) {
+        if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
                 if (skb_padto(skb, 36))
                         goto tx_drop;
                 skb->len = 36;
@@ -1013,18 +1013,40 @@ static int be_vid_config(struct be_adapter *adapter)
         status = be_cmd_vlan_config(adapter, adapter->if_handle,
                                     vids, num, 1, 0);
 
-        /* Set to VLAN promisc mode as setting VLAN filter failed */
         if (status) {
-                dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
-                dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
-                goto set_vlan_promisc;
+                /* Set to VLAN promisc mode as setting VLAN filter failed */
+                if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
+                        goto set_vlan_promisc;
+                dev_err(&adapter->pdev->dev,
+                        "Setting HW VLAN filtering failed.\n");
+        } else {
+                if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
+                        /* hw VLAN filtering re-enabled. */
+                        status = be_cmd_rx_filter(adapter,
+                                                  BE_FLAGS_VLAN_PROMISC, OFF);
+                        if (!status) {
+                                dev_info(&adapter->pdev->dev,
+                                         "Disabling VLAN Promiscuous mode.\n");
+                                adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
+                                dev_info(&adapter->pdev->dev,
+                                         "Re-Enabling HW VLAN filtering\n");
+                        }
+                }
         }
 
         return status;
 
 set_vlan_promisc:
-        status = be_cmd_vlan_config(adapter, adapter->if_handle,
-                                    NULL, 0, 1, 1);
+        dev_warn(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
+
+        status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
+        if (!status) {
+                dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
+                dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering\n");
+                adapter->flags |= BE_FLAGS_VLAN_PROMISC;
+        } else
+                dev_err(&adapter->pdev->dev,
+                        "Failed to enable VLAN Promiscuous mode.\n");
         return status;
 }
 
@@ -1033,10 +1055,6 @@ static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
         struct be_adapter *adapter = netdev_priv(netdev);
         int status = 0;
 
-        if (!lancer_chip(adapter) && !be_physfn(adapter)) {
-                status = -EINVAL;
-                goto ret;
-        }
 
         /* Packets with VID 0 are always received by Lancer by default */
         if (lancer_chip(adapter) && vid == 0)
@@ -1059,11 +1077,6 @@ static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
         struct be_adapter *adapter = netdev_priv(netdev);
         int status = 0;
 
-        if (!lancer_chip(adapter) && !be_physfn(adapter)) {
-                status = -EINVAL;
-                goto ret;
-        }
-
         /* Packets with VID 0 are always received by Lancer by default */
         if (lancer_chip(adapter) && vid == 0)
                 goto ret;
@@ -1188,8 +1201,8 @@ static int be_get_vf_config(struct net_device *netdev, int vf,
 
         vi->vf = vf;
         vi->tx_rate = vf_cfg->tx_rate;
-        vi->vlan = vf_cfg->vlan_tag;
-        vi->qos = 0;
+        vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
+        vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
         memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
 
         return 0;
@@ -1199,28 +1212,29 @@ static int be_set_vf_vlan(struct net_device *netdev,
                         int vf, u16 vlan, u8 qos)
 {
         struct be_adapter *adapter = netdev_priv(netdev);
+        struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
         int status = 0;
 
         if (!sriov_enabled(adapter))
                 return -EPERM;
 
-        if (vf >= adapter->num_vfs || vlan > 4095)
+        if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
                 return -EINVAL;
 
-        if (vlan) {
-                if (adapter->vf_cfg[vf].vlan_tag != vlan) {
+        if (vlan || qos) {
+                vlan |= qos << VLAN_PRIO_SHIFT;
+                if (vf_cfg->vlan_tag != vlan) {
                         /* If this is new value, program it. Else skip. */
-                        adapter->vf_cfg[vf].vlan_tag = vlan;
-
-                        status = be_cmd_set_hsw_config(adapter, vlan,
-                                vf + 1, adapter->vf_cfg[vf].if_handle, 0);
+                        vf_cfg->vlan_tag = vlan;
+                        status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
+                                                       vf_cfg->if_handle, 0);
                 }
         } else {
                 /* Reset Transparent Vlan Tagging. */
-                adapter->vf_cfg[vf].vlan_tag = 0;
-                vlan = adapter->vf_cfg[vf].def_vid;
+                vf_cfg->vlan_tag = 0;
+                vlan = vf_cfg->def_vid;
                 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
-                        adapter->vf_cfg[vf].if_handle, 0);
+                                               vf_cfg->if_handle, 0);
         }
 
 
@@ -2963,6 +2977,8 @@ static void BEx_get_resources(struct be_adapter *adapter,
 
         if (adapter->function_mode & FLEX10_MODE)
                 res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
+        else if (adapter->function_mode & UMC_ENABLED)
+                res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED;
         else
                 res->max_vlans = BE_NUM_VLANS_SUPPORTED;
         res->max_mcast_mac = BE_MAX_MC;
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index c4eaadeb572f..9fbe4dda7a0e 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -88,6 +88,7 @@
 
 #include <asm/io.h>
 #include <asm/reg.h>
+#include <asm/mpc85xx.h>
 #include <asm/irq.h>
 #include <asm/uaccess.h>
 #include <linux/module.h>
@@ -939,9 +940,8 @@ static void gfar_init_filer_table(struct gfar_private *priv)
         }
 }
 
-static void gfar_detect_errata(struct gfar_private *priv)
+static void __gfar_detect_errata_83xx(struct gfar_private *priv)
 {
-        struct device *dev = &priv->ofdev->dev;
         unsigned int pvr = mfspr(SPRN_PVR);
         unsigned int svr = mfspr(SPRN_SVR);
         unsigned int mod = (svr >> 16) & 0xfff6; /* w/o E suffix */
@@ -957,15 +957,33 @@ static void gfar_detect_errata(struct gfar_private *priv)
             (pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
                 priv->errata |= GFAR_ERRATA_76;
 
-        /* MPC8313 and MPC837x all rev */
-        if ((pvr == 0x80850010 && mod == 0x80b0) ||
-            (pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
-                priv->errata |= GFAR_ERRATA_A002;
+        /* MPC8313 Rev < 2.0 */
+        if (pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020)
+                priv->errata |= GFAR_ERRATA_12;
+}
 
-        /* MPC8313 Rev < 2.0, MPC8548 rev 2.0 */
-        if ((pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020) ||
-            (pvr == 0x80210020 && mod == 0x8030 && rev == 0x0020))
+static void __gfar_detect_errata_85xx(struct gfar_private *priv)
+{
+        unsigned int svr = mfspr(SPRN_SVR);
+
+        if ((SVR_SOC_VER(svr) == SVR_8548) && (SVR_REV(svr) == 0x20))
                 priv->errata |= GFAR_ERRATA_12;
+        if (((SVR_SOC_VER(svr) == SVR_P2020) && (SVR_REV(svr) < 0x20)) ||
+            ((SVR_SOC_VER(svr) == SVR_P2010) && (SVR_REV(svr) < 0x20)))
+                priv->errata |= GFAR_ERRATA_76; /* aka eTSEC 20 */
+}
+
+static void gfar_detect_errata(struct gfar_private *priv)
+{
+        struct device *dev = &priv->ofdev->dev;
+
+        /* no plans to fix */
+        priv->errata |= GFAR_ERRATA_A002;
+
+        if (pvr_version_is(PVR_VER_E500V1) || pvr_version_is(PVR_VER_E500V2))
+                __gfar_detect_errata_85xx(priv);
+        else /* non-mpc85xx parts, i.e. e300 core based */
+                __gfar_detect_errata_83xx(priv);
 
         if (priv->errata)
                 dev_info(dev, "enabled errata workarounds, flags: 0x%x\n",
@@ -1599,7 +1617,7 @@ static int __gfar_is_rx_idle(struct gfar_private *priv)
         /* Normaly TSEC should not hang on GRS commands, so we should
          * actually wait for IEVENT_GRSC flag.
          */
-        if (likely(!gfar_has_errata(priv, GFAR_ERRATA_A002)))
+        if (!gfar_has_errata(priv, GFAR_ERRATA_A002))
                 return 0;
 
         /* Read the eTSEC register at offset 0xD1C. If bits 7-14 are
diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c
index 098f133908ae..e006a09ba899 100644
--- a/drivers/net/ethernet/freescale/gianfar_ptp.c
+++ b/drivers/net/ethernet/freescale/gianfar_ptp.c
@@ -452,7 +452,9 @@ static int gianfar_ptp_probe(struct platform_device *dev)
         err = -ENODEV;
 
         etsects->caps = ptp_gianfar_caps;
-        etsects->cksel = DEFAULT_CKSEL;
+
+        if (get_of_u32(node, "fsl,cksel", &etsects->cksel))
+                etsects->cksel = DEFAULT_CKSEL;
 
         if (get_of_u32(node, "fsl,tclk-period", &etsects->tclk_period) ||
             get_of_u32(node, "fsl,tmr-prsc", &etsects->tmr_prsc) ||
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
index 0c524fa9f811..cfef7fc32cdd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c
@@ -701,8 +701,7 @@ i40e_status i40e_asq_send_command(struct i40e_hw *hw,
 
         details = I40E_ADMINQ_DETAILS(hw->aq.asq, hw->aq.asq.next_to_use);
         if (cmd_details) {
-                memcpy(details, cmd_details,
-                       sizeof(struct i40e_asq_cmd_details));
+                *details = *cmd_details;
 
                 /* If the cmd_details are defined copy the cookie.  The
                  * cpu_to_le32 is not needed here because the data is ignored
@@ -760,7 +759,7 @@ i40e_status i40e_asq_send_command(struct i40e_hw *hw,
         desc_on_ring = I40E_ADMINQ_DESC(hw->aq.asq, hw->aq.asq.next_to_use);
 
         /* if the desc is available copy the temp desc to the right place */
-        memcpy(desc_on_ring, desc, sizeof(struct i40e_aq_desc));
+        *desc_on_ring = *desc;
 
         /* if buff is not NULL assume indirect command */
         if (buff != NULL) {
@@ -807,7 +806,7 @@ i40e_status i40e_asq_send_command(struct i40e_hw *hw,
 
         /* if ready, copy the desc back to temp */
         if (i40e_asq_done(hw)) {
-                memcpy(desc, desc_on_ring, sizeof(struct i40e_aq_desc));
+                *desc = *desc_on_ring;
                 if (buff != NULL)
                         memcpy(buff, dma_buff->va, buff_size);
                 retval = le16_to_cpu(desc->retval);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index c21df7bc3b1d..1e4ea134975a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -507,7 +507,7 @@ i40e_status i40e_aq_get_link_info(struct i40e_hw *hw,
 
         /* save link status information */
         if (link)
-                memcpy(link, hw_link_info, sizeof(struct i40e_link_status));
+                *link = *hw_link_info;
 
         /* flag cleared so helper functions don't call AQ again */
         hw->phy.get_link_info = false;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 601d482694ea..221aa4795017 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -101,10 +101,10 @@ int i40e_allocate_dma_mem_d(struct i40e_hw *hw, struct i40e_dma_mem *mem,
         mem->size = ALIGN(size, alignment);
         mem->va = dma_zalloc_coherent(&pf->pdev->dev, mem->size,
                                       &mem->pa, GFP_KERNEL);
-        if (mem->va)
-                return 0;
+        if (!mem->va)
+                return -ENOMEM;
 
-        return -ENOMEM;
+        return 0;
 }
 
 /**
@@ -136,10 +136,10 @@ int i40e_allocate_virt_mem_d(struct i40e_hw *hw, struct i40e_virt_mem *mem,
         mem->size = size;
         mem->va = kzalloc(size, GFP_KERNEL);
 
-        if (mem->va)
-                return 0;
+        if (!mem->va)
+                return -ENOMEM;
 
-        return -ENOMEM;
+        return 0;
 }
 
 /**
@@ -174,8 +174,7 @@ static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
                          u16 needed, u16 id)
 {
         int ret = -ENOMEM;
-        int i = 0;
-        int j = 0;
+        int i, j;
 
         if (!pile || needed == 0 || id >= I40E_PILE_VALID_BIT) {
                 dev_info(&pf->pdev->dev,
@@ -186,7 +185,7 @@ static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
 
         /* start the linear search with an imperfect hint */
         i = pile->search_hint;
-        while (i < pile->num_entries && ret < 0) {
+        while (i < pile->num_entries) {
                 /* skip already allocated entries */
                 if (pile->list[i] & I40E_PILE_VALID_BIT) {
                         i++;
@@ -205,6 +204,7 @@ static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
                                 pile->list[i+j] = id | I40E_PILE_VALID_BIT;
                         ret = i;
                         pile->search_hint = i + j;
+                        break;
                 } else {
                         /* not enough, so skip over it and continue looking */
                         i += j;
@@ -1388,7 +1388,7 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
         bool add_happened = false;
         int filter_list_len = 0;
         u32 changed_flags = 0;
-        i40e_status ret = 0;
+        i40e_status aq_ret = 0;
         struct i40e_pf *pf;
         int num_add = 0;
         int num_del = 0;
@@ -1449,28 +1449,28 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
 
                         /* flush a full buffer */
                         if (num_del == filter_list_len) {
-                                ret = i40e_aq_remove_macvlan(&pf->hw,
+                                aq_ret = i40e_aq_remove_macvlan(&pf->hw,
                                             vsi->seid, del_list, num_del,
                                             NULL);
                                 num_del = 0;
                                 memset(del_list, 0, sizeof(*del_list));
 
-                                if (ret)
+                                if (aq_ret)
                                         dev_info(&pf->pdev->dev,
                                                  "ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
-                                                 ret,
+                                                 aq_ret,
                                                  pf->hw.aq.asq_last_status);
                         }
                 }
                 if (num_del) {
-                        ret = i40e_aq_remove_macvlan(&pf->hw, vsi->seid,
+                        aq_ret = i40e_aq_remove_macvlan(&pf->hw, vsi->seid,
                                                      del_list, num_del, NULL);
                         num_del = 0;
 
-                        if (ret)
+                        if (aq_ret)
                                 dev_info(&pf->pdev->dev,
                                          "ignoring delete macvlan error, err %d, aq_err %d\n",
-                                         ret, pf->hw.aq.asq_last_status);
+                                         aq_ret, pf->hw.aq.asq_last_status);
                 }
 
                 kfree(del_list);
@@ -1515,32 +1515,30 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
 
                         /* flush a full buffer */
                         if (num_add == filter_list_len) {
-                                ret = i40e_aq_add_macvlan(&pf->hw,
-                                                          vsi->seid,
-                                                          add_list,
-                                                          num_add,
-                                                          NULL);
+                                aq_ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid,
+                                                             add_list, num_add,
+                                                             NULL);
                                 num_add = 0;
 
-                                if (ret)
+                                if (aq_ret)
                                         break;
                                 memset(add_list, 0, sizeof(*add_list));
                         }
                 }
                 if (num_add) {
-                        ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid,
-                                                  add_list, num_add, NULL);
+                        aq_ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid,
+                                                     add_list, num_add, NULL);
                         num_add = 0;
                 }
                 kfree(add_list);
                 add_list = NULL;
 
-                if (add_happened && (!ret)) {
+                if (add_happened && (!aq_ret)) {
                         /* do nothing */;
-                } else if (add_happened && (ret)) {
+                } else if (add_happened && (aq_ret)) {
                         dev_info(&pf->pdev->dev,
                                  "add filter failed, err %d, aq_err %d\n",
-                                 ret, pf->hw.aq.asq_last_status);
+                                 aq_ret, pf->hw.aq.asq_last_status);
                         if ((pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOSPC) &&
                             !test_bit(__I40E_FILTER_OVERFLOW_PROMISC,
                                       &vsi->state)) {
@@ -1556,28 +1554,27 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
         if (changed_flags & IFF_ALLMULTI) {
                 bool cur_multipromisc;
                 cur_multipromisc = !!(vsi->current_netdev_flags & IFF_ALLMULTI);
-                ret = i40e_aq_set_vsi_multicast_promiscuous(&vsi->back->hw,
-                                                            vsi->seid,
-                                                            cur_multipromisc,
-                                                            NULL);
-                if (ret)
+                aq_ret = i40e_aq_set_vsi_multicast_promiscuous(&vsi->back->hw,
+                                                               vsi->seid,
+                                                               cur_multipromisc,
+                                                               NULL);
+                if (aq_ret)
                         dev_info(&pf->pdev->dev,
                                  "set multi promisc failed, err %d, aq_err %d\n",
-                                 ret, pf->hw.aq.asq_last_status);
+                                 aq_ret, pf->hw.aq.asq_last_status);
         }
         if ((changed_flags & IFF_PROMISC) || promisc_forced_on) {
                 bool cur_promisc;
                 cur_promisc = (!!(vsi->current_netdev_flags & IFF_PROMISC) ||
                                test_bit(__I40E_FILTER_OVERFLOW_PROMISC,
                                         &vsi->state));
-                ret = i40e_aq_set_vsi_unicast_promiscuous(&vsi->back->hw,
-                                                          vsi->seid,
-                                                          cur_promisc,
-                                                          NULL);
-                if (ret)
+                aq_ret = i40e_aq_set_vsi_unicast_promiscuous(&vsi->back->hw,
+                                                             vsi->seid,
+                                                             cur_promisc, NULL);
+                if (aq_ret)
                         dev_info(&pf->pdev->dev,
                                  "set uni promisc failed, err %d, aq_err %d\n",
-                                 ret, pf->hw.aq.asq_last_status);
+                                 aq_ret, pf->hw.aq.asq_last_status);
         }
 
         clear_bit(__I40E_CONFIG_BUSY, &vsi->state);
@@ -1790,6 +1787,8 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid)
  * i40e_vsi_kill_vlan - Remove vsi membership for given vlan
  * @vsi: the vsi being configured
  * @vid: vlan id to be removed (0 = untagged only , -1 = any)
+ *
+ * Return: 0 on success or negative otherwise
  **/
 int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid)
 {
@@ -1863,37 +1862,39 @@ int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid)
  * i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
  * @netdev: network interface to be adjusted
  * @vid: vlan id to be added
+ *
+ * net_device_ops implementation for adding vlan ids
  **/
 static int i40e_vlan_rx_add_vid(struct net_device *netdev,
                                 __always_unused __be16 proto, u16 vid)
 {
         struct i40e_netdev_priv *np = netdev_priv(netdev);
         struct i40e_vsi *vsi = np->vsi;
-        int ret;
+        int ret = 0;
 
         if (vid > 4095)
-                return 0;
+                return -EINVAL;
+
+        netdev_info(netdev, "adding %pM vid=%d\n", netdev->dev_addr, vid);
 
-        netdev_info(vsi->netdev, "adding %pM vid=%d\n",
-                    netdev->dev_addr, vid);
         /* If the network stack called us with vid = 0, we should
          * indicate to i40e_vsi_add_vlan() that we want to receive
          * any traffic (i.e. with any vlan tag, or untagged)
          */
         ret = i40e_vsi_add_vlan(vsi, vid ? vid : I40E_VLAN_ANY);
 
-        if (!ret) {
-                if (vid < VLAN_N_VID)
-                        set_bit(vid, vsi->active_vlans);
-        }
+        if (!ret && (vid < VLAN_N_VID))
+                set_bit(vid, vsi->active_vlans);
 
-        return 0;
+        return ret;
 }
 
 /**
  * i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
  * @netdev: network interface to be adjusted
  * @vid: vlan id to be removed
+ *
+ * net_device_ops implementation for adding vlan ids
  **/
 static int i40e_vlan_rx_kill_vid(struct net_device *netdev,
                                  __always_unused __be16 proto, u16 vid)
@@ -1901,15 +1902,16 @@ static int i40e_vlan_rx_kill_vid(struct net_device *netdev,
         struct i40e_netdev_priv *np = netdev_priv(netdev);
         struct i40e_vsi *vsi = np->vsi;
 
-        netdev_info(vsi->netdev, "removing %pM vid=%d\n",
-                    netdev->dev_addr, vid);
+        netdev_info(netdev, "removing %pM vid=%d\n", netdev->dev_addr, vid);
+
         /* return code is ignored as there is nothing a user
          * can do about failure to remove and a log message was
-         * already printed from another function
+         * already printed from the other function
          */
         i40e_vsi_kill_vlan(vsi, vid);
 
         clear_bit(vid, vsi->active_vlans);
+
         return 0;
 }
 
@@ -1936,10 +1938,10 @@ static void i40e_restore_vlan(struct i40e_vsi *vsi)
  * @vsi: the vsi being adjusted
  * @vid: the vlan id to set as a PVID
  **/
-i40e_status i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid)
+int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid)
 {
         struct i40e_vsi_context ctxt;
-        i40e_status ret;
+        i40e_status aq_ret;
 
         vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID);
         vsi->info.pvid = cpu_to_le16(vid);
@@ -1948,14 +1950,15 @@ i40e_status i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid)
 
         ctxt.seid = vsi->seid;
         memcpy(&ctxt.info, &vsi->info, sizeof(vsi->info));
-        ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
-        if (ret) {
+        aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
+        if (aq_ret) {
                 dev_info(&vsi->back->pdev->dev,
                          "%s: update vsi failed, aq_err=%d\n",
                          __func__, vsi->back->hw.aq.asq_last_status);
+                return -ENOENT;
         }
 
-        return ret;
+        return 0;
 }
 
 /**
@@ -3326,7 +3329,8 @@ static void i40e_pf_unquiesce_all_vsi(struct i40e_pf *pf)
  **/
 static u8 i40e_dcb_get_num_tc(struct i40e_dcbx_config *dcbcfg)
 {
-        int num_tc = 0, i;
+        u8 num_tc = 0;
+        int i;
 
         /* Scan the ETS Config Priority Table to find
          * traffic class enabled for a given priority
@@ -3341,9 +3345,7 @@ static u8 i40e_dcb_get_num_tc(struct i40e_dcbx_config *dcbcfg)
         /* Traffic class index starts from zero so
          * increment to return the actual count
          */
-        num_tc++;
-
-        return num_tc;
+        return num_tc + 1;
 }
 
 /**
@@ -3451,28 +3453,27 @@ static int i40e_vsi_get_bw_info(struct i40e_vsi *vsi)
         struct i40e_aqc_query_vsi_bw_config_resp bw_config = {0};
         struct i40e_pf *pf = vsi->back;
         struct i40e_hw *hw = &pf->hw;
+        i40e_status aq_ret;
         u32 tc_bw_max;
-        int ret;
         int i;
 
         /* Get the VSI level BW configuration */
-        ret = i40e_aq_query_vsi_bw_config(hw, vsi->seid, &bw_config, NULL);
-        if (ret) {
+        aq_ret = i40e_aq_query_vsi_bw_config(hw, vsi->seid, &bw_config, NULL);
+        if (aq_ret) {
                 dev_info(&pf->pdev->dev,
                          "couldn't get pf vsi bw config, err %d, aq_err %d\n",
-                         ret, pf->hw.aq.asq_last_status);
-                return ret;
+                         aq_ret, pf->hw.aq.asq_last_status);
+                return -EINVAL;
         }
 
         /* Get the VSI level BW configuration per TC */
-        ret = i40e_aq_query_vsi_ets_sla_config(hw, vsi->seid,
-                                               &bw_ets_config,
-                                               NULL);
-        if (ret) {
+        aq_ret = i40e_aq_query_vsi_ets_sla_config(hw, vsi->seid, &bw_ets_config,
+                                                  NULL);
+        if (aq_ret) {
                 dev_info(&pf->pdev->dev,
                          "couldn't get pf vsi ets bw config, err %d, aq_err %d\n",
-                         ret, pf->hw.aq.asq_last_status);
-                return ret;
+                         aq_ret, pf->hw.aq.asq_last_status);
+                return -EINVAL;
         }
 
         if (bw_config.tc_valid_bits != bw_ets_config.tc_valid_bits) {
@@ -3494,7 +3495,8 @@ static int i40e_vsi_get_bw_info(struct i40e_vsi *vsi)
                 /* 3 bits out of 4 for each TC */
                 vsi->bw_ets_max_quanta[i] = (u8)((tc_bw_max >> (i*4)) & 0x7);
         }
-        return ret;
+
+        return 0;
 }
 
 /**
@@ -3505,30 +3507,30 @@ static int i40e_vsi_get_bw_info(struct i40e_vsi *vsi)
  *
  * Returns 0 on success, negative value on failure
  **/
-static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi,
-                                       u8 enabled_tc,
+static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc,
                                        u8 *bw_share)
 {
         struct i40e_aqc_configure_vsi_tc_bw_data bw_data;
-        int i, ret = 0;
+        i40e_status aq_ret;
+        int i;
 
         bw_data.tc_valid_bits = enabled_tc;
         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
                 bw_data.tc_bw_credits[i] = bw_share[i];
 
-        ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, vsi->seid,
-                                       &bw_data, NULL);
-        if (ret) {
+        aq_ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, vsi->seid, &bw_data,
+                                          NULL);
+        if (aq_ret) {
                 dev_info(&vsi->back->pdev->dev,
                          "%s: AQ command Config VSI BW allocation per TC failed = %d\n",
                          __func__, vsi->back->hw.aq.asq_last_status);
-                return ret;
+                return -EINVAL;
         }
 
         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
                 vsi->info.qs_handle[i] = bw_data.qs_handles[i];
 
-        return ret;
+        return 0;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 48cbc833b051..151e00cad113 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -1607,6 +1607,9 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter)
                         igb_write_phy_reg(hw, I347AT4_PAGE_SELECT, 0);
                         igb_write_phy_reg(hw, PHY_CONTROL, 0x4140);
                 }
+        } else if (hw->phy.type == e1000_phy_82580) {
+                /* enable MII loopback */
+                igb_write_phy_reg(hw, I82580_PHY_LBK_CTRL, 0x8041);
         }
 
         /* add small delay to avoid loopback test failure */
@@ -2652,6 +2655,8 @@ static int igb_set_eee(struct net_device *netdev,
             (hw->phy.media_type != e1000_media_type_copper))
                 return -EOPNOTSUPP;
 
+        memset(&eee_curr, 0, sizeof(struct ethtool_eee));
+
         ret_val = igb_get_eee(netdev, &eee_curr);
         if (ret_val)
                 return ret_val;
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 7fb5677451f9..2c210ec35d59 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -1131,15 +1131,13 @@ static void mib_counters_update(struct mv643xx_eth_private *mp)
         p->rx_discard += rdlp(mp, RX_DISCARD_FRAME_CNT);
         p->rx_overrun += rdlp(mp, RX_OVERRUN_FRAME_CNT);
         spin_unlock_bh(&mp->mib_counters_lock);
-
-        mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
 }
 
 static void mib_counters_timer_wrapper(unsigned long _mp)
 {
         struct mv643xx_eth_private *mp = (void *)_mp;
-
         mib_counters_update(mp);
+        mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
 }
 
 
@@ -2237,6 +2235,7 @@ static int mv643xx_eth_open(struct net_device *dev)
                 mp->int_mask |= INT_TX_END_0 << i;
         }
 
+        add_timer(&mp->mib_counters_timer);
         port_start(mp);
 
         wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX);
@@ -2534,6 +2533,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
         if (!ppdev)
                 return -ENOMEM;
         ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+        ppdev->dev.of_node = pnp;
 
         ret = platform_device_add_resources(ppdev, &res, 1);
         if (ret)
@@ -2916,7 +2916,6 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
         mp->mib_counters_timer.data = (unsigned long)mp;
         mp->mib_counters_timer.function = mib_counters_timer_wrapper;
         mp->mib_counters_timer.expires = jiffies + 30 * HZ;
-        add_timer(&mp->mib_counters_timer);
 
         spin_lock_init(&mp->mib_counters_lock);
 
diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c
index 1a9c4f6269ea..ecc7f7b696b8 100644
--- a/drivers/net/ethernet/marvell/skge.c
+++ b/drivers/net/ethernet/marvell/skge.c
@@ -3086,13 +3086,16 @@ static struct sk_buff *skge_rx_get(struct net_device *dev,
                                                PCI_DMA_FROMDEVICE);
                 skge_rx_reuse(e, skge->rx_buf_size);
         } else {
+                struct skge_element ee;
                 struct sk_buff *nskb;
 
                 nskb = netdev_alloc_skb_ip_align(dev, skge->rx_buf_size);
                 if (!nskb)
                         goto resubmit;
 
-                skb = e->skb;
+                ee = *e;
+
+                skb = ee.skb;
                 prefetch(skb->data);
 
                 if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) {
@@ -3101,8 +3104,8 @@ static struct sk_buff *skge_rx_get(struct net_device *dev,
                 }
 
                 pci_unmap_single(skge->hw->pdev,
-                                 dma_unmap_addr(e, mapaddr),
-                                 dma_unmap_len(e, maplen),
+                                 dma_unmap_addr(&ee, mapaddr),
+                                 dma_unmap_len(&ee, maplen),
                                  PCI_DMA_FROMDEVICE);
         }
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index dec455c8f627..afe2efa69c86 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -70,14 +70,15 @@ static int mlx4_alloc_pages(struct mlx4_en_priv *priv,
                 put_page(page);
                 return -ENOMEM;
         }
-        page_alloc->size = PAGE_SIZE << order;
+        page_alloc->page_size = PAGE_SIZE << order;
         page_alloc->page = page;
         page_alloc->dma = dma;
-        page_alloc->offset = frag_info->frag_align;
+        page_alloc->page_offset = frag_info->frag_align;
         /* Not doing get_page() for each frag is a big win
          * on asymetric workloads.
          */
-        atomic_set(&page->_count, page_alloc->size / frag_info->frag_stride);
+        atomic_set(&page->_count,
+                   page_alloc->page_size / frag_info->frag_stride);
         return 0;
 }
 
@@ -96,16 +97,19 @@ static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv,
         for (i = 0; i < priv->num_frags; i++) {
                 frag_info = &priv->frag_info[i];
                 page_alloc[i] = ring_alloc[i];
-                page_alloc[i].offset += frag_info->frag_stride;
-                if (page_alloc[i].offset + frag_info->frag_stride <= ring_alloc[i].size)
+                page_alloc[i].page_offset += frag_info->frag_stride;
+
+                if (page_alloc[i].page_offset + frag_info->frag_stride <=
+                    ring_alloc[i].page_size)
                         continue;
+
                 if (mlx4_alloc_pages(priv, &page_alloc[i], frag_info, gfp))
                         goto out;
         }
 
         for (i = 0; i < priv->num_frags; i++) {
                 frags[i] = ring_alloc[i];
-                dma = ring_alloc[i].dma + ring_alloc[i].offset;
+                dma = ring_alloc[i].dma + ring_alloc[i].page_offset;
                 ring_alloc[i] = page_alloc[i];
                 rx_desc->data[i].addr = cpu_to_be64(dma);
         }
@@ -117,7 +121,7 @@ out:
                 frag_info = &priv->frag_info[i];
                 if (page_alloc[i].page != ring_alloc[i].page) {
                         dma_unmap_page(priv->ddev, page_alloc[i].dma,
-                                page_alloc[i].size, PCI_DMA_FROMDEVICE);
+                                page_alloc[i].page_size, PCI_DMA_FROMDEVICE);
                         page = page_alloc[i].page;
                         atomic_set(&page->_count, 1);
                         put_page(page);
@@ -131,10 +135,12 @@ static void mlx4_en_free_frag(struct mlx4_en_priv *priv,
                               int i)
 {
         const struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
+        u32 next_frag_end = frags[i].page_offset + 2 * frag_info->frag_stride;
+
 
-        if (frags[i].offset + frag_info->frag_stride > frags[i].size)
-                dma_unmap_page(priv->ddev, frags[i].dma, frags[i].size,
-                                         PCI_DMA_FROMDEVICE);
+        if (next_frag_end > frags[i].page_size)
+                dma_unmap_page(priv->ddev, frags[i].dma, frags[i].page_size,
+                               PCI_DMA_FROMDEVICE);
 
         if (frags[i].page)
                 put_page(frags[i].page);
@@ -161,7 +167,7 @@ out:
 
                 page_alloc = &ring->page_alloc[i];
                 dma_unmap_page(priv->ddev, page_alloc->dma,
-                               page_alloc->size, PCI_DMA_FROMDEVICE);
+                               page_alloc->page_size, PCI_DMA_FROMDEVICE);
                 page = page_alloc->page;
                 atomic_set(&page->_count, 1);
                 put_page(page);
@@ -184,10 +190,11 @@ static void mlx4_en_destroy_allocator(struct mlx4_en_priv *priv,
                        i, page_count(page_alloc->page));
 
                 dma_unmap_page(priv->ddev, page_alloc->dma,
-                                page_alloc->size, PCI_DMA_FROMDEVICE);
-                while (page_alloc->offset + frag_info->frag_stride < page_alloc->size) {
+                                page_alloc->page_size, PCI_DMA_FROMDEVICE);
+                while (page_alloc->page_offset + frag_info->frag_stride <
+                       page_alloc->page_size) {
                         put_page(page_alloc->page);
-                        page_alloc->offset += frag_info->frag_stride;
+                        page_alloc->page_offset += frag_info->frag_stride;
                 }
                 page_alloc->page = NULL;
         }
@@ -478,7 +485,7 @@ static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv,
                 /* Save page reference in skb */
                 __skb_frag_set_page(&skb_frags_rx[nr], frags[nr].page);
                 skb_frag_size_set(&skb_frags_rx[nr], frag_info->frag_size);
-                skb_frags_rx[nr].page_offset = frags[nr].offset;
+                skb_frags_rx[nr].page_offset = frags[nr].page_offset;
                 skb->truesize += frag_info->frag_stride;
                 frags[nr].page = NULL;
         }
@@ -517,7 +524,7 @@ static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
 
         /* Get pointer to first fragment so we could copy the headers into the
          * (linear part of the) skb */
-        va = page_address(frags[0].page) + frags[0].offset;
+        va = page_address(frags[0].page) + frags[0].page_offset;
 
         if (length <= SMALL_PACKET_SIZE) {
                 /* We are copying all relevant data to the skb - temporarily
@@ -645,7 +652,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
                         dma_sync_single_for_cpu(priv->ddev, dma, sizeof(*ethh),
                                                 DMA_FROM_DEVICE);
                         ethh = (struct ethhdr *)(page_address(frags[0].page) +
-                                                 frags[0].offset);
+                                                 frags[0].page_offset);
 
                         if (is_multicast_ether_addr(ethh->h_dest)) {
                                 struct mlx4_mac_entry *entry;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 5e0aa569306a..bf06e3610d27 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -237,8 +237,8 @@ struct mlx4_en_tx_desc {
 struct mlx4_en_rx_alloc {
         struct page     *page;
         dma_addr_t      dma;
-        u32             offset;
-        u32             size;
+        u32             page_offset;
+        u32             page_size;
 };
 
 struct mlx4_en_tx_ring {
diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c
index 83c2091c9c23..ea54d95e5b9f 100644
--- a/drivers/net/ethernet/moxa/moxart_ether.c
+++ b/drivers/net/ethernet/moxa/moxart_ether.c
@@ -448,7 +448,8 @@ static int moxart_mac_probe(struct platform_device *pdev)
         irq = irq_of_parse_and_map(node, 0);
         if (irq <= 0) {
                 netdev_err(ndev, "irq_of_parse_and_map failed\n");
-                return -EINVAL;
+                ret = -EINVAL;
+                goto irq_map_fail;
         }
 
         priv = netdev_priv(ndev);
@@ -472,24 +473,32 @@ static int moxart_mac_probe(struct platform_device *pdev)
         priv->tx_desc_base = dma_alloc_coherent(NULL, TX_REG_DESC_SIZE *
                                                 TX_DESC_NUM, &priv->tx_base,
                                                 GFP_DMA | GFP_KERNEL);
-        if (priv->tx_desc_base == NULL)
+        if (priv->tx_desc_base == NULL) {
+                ret = -ENOMEM;
                 goto init_fail;
+        }
 
         priv->rx_desc_base = dma_alloc_coherent(NULL, RX_REG_DESC_SIZE *
                                                 RX_DESC_NUM, &priv->rx_base,
                                                 GFP_DMA | GFP_KERNEL);
-        if (priv->rx_desc_base == NULL)
+        if (priv->rx_desc_base == NULL) {
+                ret = -ENOMEM;
                 goto init_fail;
+        }
 
         priv->tx_buf_base = kmalloc(priv->tx_buf_size * TX_DESC_NUM,
                                     GFP_ATOMIC);
-        if (!priv->tx_buf_base)
+        if (!priv->tx_buf_base) {
+                ret = -ENOMEM;
                 goto init_fail;
+        }
 
         priv->rx_buf_base = kmalloc(priv->rx_buf_size * RX_DESC_NUM,
                                     GFP_ATOMIC);
-        if (!priv->rx_buf_base)
+        if (!priv->rx_buf_base) {
+                ret = -ENOMEM;
                 goto init_fail;
+        }
 
         platform_set_drvdata(pdev, ndev);
 
@@ -522,7 +531,8 @@ static int moxart_mac_probe(struct platform_device *pdev)
 init_fail:
         netdev_err(ndev, "init failed\n");
         moxart_mac_free_memory(ndev);
-
+irq_map_fail:
+        free_netdev(ndev);
         return ret;
 }
 
@@ -543,7 +553,7 @@ static const struct of_device_id moxart_mac_match[] = {
         { }
 };
 
-struct __initdata platform_driver moxart_mac_driver = {
+static struct platform_driver moxart_mac_driver = {
         .probe  = moxart_mac_probe,
         .remove = moxart_remove,
         .driver = {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 4d7ad0074d1c..ebe4c86e5230 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -1794,3 +1794,11 @@ const struct ethtool_ops qlcnic_sriov_vf_ethtool_ops = {
         .set_msglevel           = qlcnic_set_msglevel,
         .get_msglevel           = qlcnic_get_msglevel,
 };
+
+const struct ethtool_ops qlcnic_ethtool_failed_ops = {
+        .get_settings           = qlcnic_get_settings,
+        .get_drvinfo            = qlcnic_get_drvinfo,
+        .set_msglevel           = qlcnic_set_msglevel,
+        .get_msglevel           = qlcnic_get_msglevel,
+        .set_dump               = qlcnic_set_dump,
+};
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index c4c5023e1fdf..f07f2b0fefa0 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -431,6 +431,9 @@ static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
                 usleep_range(10000, 11000);
 
+        if (!adapter->fw_work.work.func)
+                return;
+
         cancel_delayed_work_sync(&adapter->fw_work);
 }
 
@@ -2254,7 +2257,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         err = qlcnic_alloc_adapter_resources(adapter);
         if (err)
-                goto err_out_free_netdev;
+                goto err_out_free_wq;
 
         adapter->dev_rst_time = jiffies;
         adapter->ahw->revision_id = pdev->revision;
@@ -2275,8 +2278,9 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                 adapter->portnum = adapter->ahw->pci_func;
                 err = qlcnic_start_firmware(adapter);
                 if (err) {
-                        dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
-                        goto err_out_free_hw;
+                        dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
+                                "\t\tIf reboot doesn't help, try flashing the card\n");
+                        goto err_out_maintenance_mode;
                 }
 
                 qlcnic_get_multiq_capability(adapter);
@@ -2392,6 +2396,9 @@ err_out_disable_msi:
 err_out_free_hw:
         qlcnic_free_adapter_resources(adapter);
 
+err_out_free_wq:
+        destroy_workqueue(adapter->qlcnic_wq);
+
 err_out_free_netdev:
         free_netdev(netdev);
 
@@ -2408,6 +2415,22 @@ err_out_disable_pdev:
         pci_set_drvdata(pdev, NULL);
         pci_disable_device(pdev);
         return err;
+
+err_out_maintenance_mode:
+        netdev->netdev_ops = &qlcnic_netdev_failed_ops;
+        SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
+        err = register_netdev(netdev);
+
+        if (err) {
+                dev_err(&pdev->dev, "Failed to register net device\n");
+                qlcnic_clr_all_drv_state(adapter, 0);
+                goto err_out_free_hw;
+        }
+
+        pci_set_drvdata(pdev, adapter);
+        qlcnic_add_sysfs(adapter);
+
+        return 0;
 }
 
 static void qlcnic_remove(struct pci_dev *pdev)
@@ -2518,8 +2541,16 @@ static int qlcnic_resume(struct pci_dev *pdev)
 static int qlcnic_open(struct net_device *netdev)
 {
         struct qlcnic_adapter *adapter = netdev_priv(netdev);
+        u32 state;
         int err;
 
+        state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
+        if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
+                netdev_err(netdev, "%s: Device is in FAILED state\n", __func__);
+
+                return -EIO;
+        }
+
         netif_carrier_off(netdev);
 
         err = qlcnic_attach(adapter);
@@ -3228,6 +3259,13 @@ void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
                 return;
 
         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
+        if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
+                netdev_err(adapter->netdev, "%s: Device is in FAILED state\n",
+                           __func__);
+                qlcnic_api_unlock(adapter);
+
+                return;
+        }
 
         if (state == QLCNIC_DEV_READY) {
                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index 330d9a8774ad..686f460b1502 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -397,6 +397,7 @@ static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter)
 {
         struct net_device *netdev = adapter->netdev;
 
+        rtnl_lock();
         if (netif_running(netdev))
                 __qlcnic_down(adapter, netdev);
 
@@ -407,12 +408,15 @@ static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter)
         /* After disabling SRIOV re-init the driver in default mode
            configure opmode based on op_mode of function
          */
-        if (qlcnic_83xx_configure_opmode(adapter))
+        if (qlcnic_83xx_configure_opmode(adapter)) {
+                rtnl_unlock();
                 return -EIO;
+        }
 
         if (netif_running(netdev))
                 __qlcnic_up(adapter, netdev);
 
+        rtnl_unlock();
         return 0;
 }
 
@@ -533,6 +537,7 @@ static int qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, int num_vfs)
                 return -EIO;
         }
 
+        rtnl_lock();
         if (netif_running(netdev))
                 __qlcnic_down(adapter, netdev);
 
@@ -555,6 +560,7 @@ static int qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, int num_vfs)
                 __qlcnic_up(adapter, netdev);
 
 error:
+        rtnl_unlock();
         return err;
 }
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index c6165d05cc13..019f4377307f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -1272,6 +1272,7 @@ void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
 void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
 {
         struct device *dev = &adapter->pdev->dev;
+        u32 state;
 
         if (device_create_bin_file(dev, &bin_attr_port_stats))
                 dev_info(dev, "failed to create port stats sysfs entry");
@@ -1285,8 +1286,13 @@ void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
         if (device_create_bin_file(dev, &bin_attr_mem))
                 dev_info(dev, "failed to create mem sysfs entry\n");
 
+        state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
+        if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD)
+                return;
+
         if (device_create_bin_file(dev, &bin_attr_pci_config))
                 dev_info(dev, "failed to create pci config sysfs entry");
+
         if (device_create_file(dev, &dev_attr_beacon))
                 dev_info(dev, "failed to create beacon sysfs entry");
 
@@ -1307,6 +1313,7 @@ void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
 void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
 {
         struct device *dev = &adapter->pdev->dev;
+        u32 state;
 
         device_remove_bin_file(dev, &bin_attr_port_stats);
 
@@ -1315,6 +1322,11 @@ void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
         device_remove_file(dev, &dev_attr_diag_mode);
         device_remove_bin_file(dev, &bin_attr_crb);
         device_remove_bin_file(dev, &bin_attr_mem);
+
+        state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
+        if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD)
+                return;
+
         device_remove_bin_file(dev, &bin_attr_pci_config);
         device_remove_file(dev, &dev_attr_beacon);
         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c b/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c
index 10093f0c4c0f..6bc5db703920 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c
@@ -740,8 +740,8 @@ int ql_core_dump(struct ql_adapter *qdev, struct ql_mpi_coredump *mpi_coredump)
         int i;
 
         if (!mpi_coredump) {
-                netif_err(qdev, drv, qdev->ndev, "No memory available\n");
-                return -ENOMEM;
+                netif_err(qdev, drv, qdev->ndev, "No memory allocated\n");
+                return -EINVAL;
         }
 
         /* Try to get the spinlock, but dont worry if
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c b/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
index ff2bf8a4e247..7ad146080c36 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
@@ -1274,7 +1274,7 @@ void ql_mpi_reset_work(struct work_struct *work)
                 return;
         }
 
-        if (!ql_core_dump(qdev, qdev->mpi_coredump)) {
+        if (qdev->mpi_coredump && !ql_core_dump(qdev, qdev->mpi_coredump)) {
                 netif_err(qdev, drv, qdev->ndev, "Core is dumped!\n");
                 qdev->core_is_dumped = 1;
                 queue_delayed_work(qdev->workqueue,
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5cd831ebfa83..b57c278d3b46 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -688,12 +688,16 @@ static struct sh_eth_cpu_data r8a7740_data = {
         .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
                           EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE |
                           EESR_TDE | EESR_ECI,
+        .fdr_value      = 0x0000070f,
+        .rmcr_value     = 0x00000001,
 
         .apr            = 1,
         .mpr            = 1,
         .tpauser        = 1,
         .bculr          = 1,
         .hw_swap        = 1,
+        .rpadir         = 1,
+        .rpadir_value   = 2 << 16,
         .no_trimd       = 1,
         .no_ade         = 1,
         .tsu            = 1,
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 9f18ae984f9e..21f9ad6392e9 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -444,6 +444,18 @@ static const struct efx_hw_stat_desc efx_ef10_stat_desc[EF10_STAT_COUNT] = {
         EF10_DMA_STAT(rx_align_error, RX_ALIGN_ERROR_PKTS),
         EF10_DMA_STAT(rx_length_error, RX_LENGTH_ERROR_PKTS),
         EF10_DMA_STAT(rx_nodesc_drops, RX_NODESC_DROPS),
+        EF10_DMA_STAT(rx_pm_trunc_bb_overflow, PM_TRUNC_BB_OVERFLOW),
+        EF10_DMA_STAT(rx_pm_discard_bb_overflow, PM_DISCARD_BB_OVERFLOW),
+        EF10_DMA_STAT(rx_pm_trunc_vfifo_full, PM_TRUNC_VFIFO_FULL),
+        EF10_DMA_STAT(rx_pm_discard_vfifo_full, PM_DISCARD_VFIFO_FULL),
+        EF10_DMA_STAT(rx_pm_trunc_qbb, PM_TRUNC_QBB),
+        EF10_DMA_STAT(rx_pm_discard_qbb, PM_DISCARD_QBB),
+        EF10_DMA_STAT(rx_pm_discard_mapping, PM_DISCARD_MAPPING),
+        EF10_DMA_STAT(rx_dp_q_disabled_packets, RXDP_Q_DISABLED_PKTS),
+        EF10_DMA_STAT(rx_dp_di_dropped_packets, RXDP_DI_DROPPED_PKTS),
+        EF10_DMA_STAT(rx_dp_streaming_packets, RXDP_STREAMING_PKTS),
+        EF10_DMA_STAT(rx_dp_emerg_fetch, RXDP_EMERGENCY_FETCH_CONDITIONS),
+        EF10_DMA_STAT(rx_dp_emerg_wait, RXDP_EMERGENCY_WAIT_CONDITIONS),
 };
 
 #define HUNT_COMMON_STAT_MASK ((1ULL << EF10_STAT_tx_bytes) |           \
@@ -498,44 +510,72 @@ static const struct efx_hw_stat_desc efx_ef10_stat_desc[EF10_STAT_COUNT] = {
 #define HUNT_40G_EXTRA_STAT_MASK ((1ULL << EF10_STAT_rx_align_error) |  \
                                   (1ULL << EF10_STAT_rx_length_error))
 
-#if BITS_PER_LONG == 64
-#define STAT_MASK_BITMAP(bits) (bits)
-#else
-#define STAT_MASK_BITMAP(bits) (bits) & 0xffffffff, (bits) >> 32
-#endif
-
-static const unsigned long *efx_ef10_stat_mask(struct efx_nic *efx)
-{
-        static const unsigned long hunt_40g_stat_mask[] = {
-                STAT_MASK_BITMAP(HUNT_COMMON_STAT_MASK |
-                                 HUNT_40G_EXTRA_STAT_MASK)
-        };
-        static const unsigned long hunt_10g_only_stat_mask[] = {
-                STAT_MASK_BITMAP(HUNT_COMMON_STAT_MASK |
-                                 HUNT_10G_ONLY_STAT_MASK)
-        };
+/* These statistics are only provided if the firmware supports the
+ * capability PM_AND_RXDP_COUNTERS.
+ */
+#define HUNT_PM_AND_RXDP_STAT_MASK (                                    \
+        (1ULL << EF10_STAT_rx_pm_trunc_bb_overflow) |                   \
+        (1ULL << EF10_STAT_rx_pm_discard_bb_overflow) |                 \
+        (1ULL << EF10_STAT_rx_pm_trunc_vfifo_full) |                    \
+        (1ULL << EF10_STAT_rx_pm_discard_vfifo_full) |                  \
+        (1ULL << EF10_STAT_rx_pm_trunc_qbb) |                           \
+        (1ULL << EF10_STAT_rx_pm_discard_qbb) |                         \
+        (1ULL << EF10_STAT_rx_pm_discard_mapping) |                     \
+        (1ULL << EF10_STAT_rx_dp_q_disabled_packets) |                  \
+        (1ULL << EF10_STAT_rx_dp_di_dropped_packets) |                  \
+        (1ULL << EF10_STAT_rx_dp_streaming_packets) |                   \
+        (1ULL << EF10_STAT_rx_dp_emerg_fetch) |                         \
+        (1ULL << EF10_STAT_rx_dp_emerg_wait))
+
+static u64 efx_ef10_raw_stat_mask(struct efx_nic *efx)
+{
+        u64 raw_mask = HUNT_COMMON_STAT_MASK;
         u32 port_caps = efx_mcdi_phy_get_caps(efx);
+        struct efx_ef10_nic_data *nic_data = efx->nic_data;
 
         if (port_caps & (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
-                return hunt_40g_stat_mask;
+                raw_mask |= HUNT_40G_EXTRA_STAT_MASK;
         else
-                return hunt_10g_only_stat_mask;
+                raw_mask |= HUNT_10G_ONLY_STAT_MASK;
+
+        if (nic_data->datapath_caps &
+            (1 << MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_LBN))
+                raw_mask |= HUNT_PM_AND_RXDP_STAT_MASK;
+
+        return raw_mask;
+}
+
+static void efx_ef10_get_stat_mask(struct efx_nic *efx, unsigned long *mask)
+{
+        u64 raw_mask = efx_ef10_raw_stat_mask(efx);
+
+#if BITS_PER_LONG == 64
+        mask[0] = raw_mask;
+#else
+        mask[0] = raw_mask & 0xffffffff;
+        mask[1] = raw_mask >> 32;
+#endif
 }
 
 static size_t efx_ef10_describe_stats(struct efx_nic *efx, u8 *names)
 {
+        DECLARE_BITMAP(mask, EF10_STAT_COUNT);
+
+        efx_ef10_get_stat_mask(efx, mask);
         return efx_nic_describe_stats(efx_ef10_stat_desc, EF10_STAT_COUNT,
-                                      efx_ef10_stat_mask(efx), names);
+                                      mask, names);
 }
 
 static int efx_ef10_try_update_nic_stats(struct efx_nic *efx)
 {
         struct efx_ef10_nic_data *nic_data = efx->nic_data;
-        const unsigned long *stats_mask = efx_ef10_stat_mask(efx);
+        DECLARE_BITMAP(mask, EF10_STAT_COUNT);
         __le64 generation_start, generation_end;
         u64 *stats = nic_data->stats;
         __le64 *dma_stats;
 
+        efx_ef10_get_stat_mask(efx, mask);
+
         dma_stats = efx->stats_buffer.addr;
         nic_data = efx->nic_data;
 
@@ -543,8 +583,9 @@ static int efx_ef10_try_update_nic_stats(struct efx_nic *efx)
         if (generation_end == EFX_MC_STATS_GENERATION_INVALID)
                 return 0;
         rmb();
-        efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, stats_mask,
+        efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, mask,
                              stats, efx->stats_buffer.addr, false);
+        rmb();
         generation_start = dma_stats[MC_CMD_MAC_GENERATION_START];
         if (generation_end != generation_start)
                 return -EAGAIN;
@@ -563,12 +604,14 @@ static int efx_ef10_try_update_nic_stats(struct efx_nic *efx)
 static size_t efx_ef10_update_stats(struct efx_nic *efx, u64 *full_stats,
                                     struct rtnl_link_stats64 *core_stats)
 {
-        const unsigned long *mask = efx_ef10_stat_mask(efx);
+        DECLARE_BITMAP(mask, EF10_STAT_COUNT);
         struct efx_ef10_nic_data *nic_data = efx->nic_data;
         u64 *stats = nic_data->stats;
         size_t stats_count = 0, index;
         int retry;
 
+        efx_ef10_get_stat_mask(efx, mask);
+
         /* If we're unlucky enough to read statistics during the DMA, wait
          * up to 10ms for it to finish (typically takes <500us)
          */
diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
index 128d7cdf9eb2..366c8e3e3784 100644
--- a/drivers/net/ethernet/sfc/mcdi.c
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -27,10 +27,10 @@
 
 /* A reboot/assertion causes the MCDI status word to be set after the
  * command word is set or a REBOOT event is sent. If we notice a reboot
- * via these mechanisms then wait 20ms for the status word to be set.
+ * via these mechanisms then wait 250ms for the status word to be set.
  */
 #define MCDI_STATUS_DELAY_US            100
-#define MCDI_STATUS_DELAY_COUNT         200
+#define MCDI_STATUS_DELAY_COUNT         2500
 #define MCDI_STATUS_SLEEP_MS                                            \
         (MCDI_STATUS_DELAY_US * MCDI_STATUS_DELAY_COUNT / 1000)
 
@@ -800,9 +800,6 @@ static void efx_mcdi_ev_death(struct efx_nic *efx, int rc)
         } else {
                 int count;
 
-                /* Nobody was waiting for an MCDI request, so trigger a reset */
-                efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
-
                 /* Consume the status word since efx_mcdi_rpc_finish() won't */
                 for (count = 0; count < MCDI_STATUS_DELAY_COUNT; ++count) {
                         if (efx_mcdi_poll_reboot(efx))
@@ -810,6 +807,9 @@ static void efx_mcdi_ev_death(struct efx_nic *efx, int rc)
                         udelay(MCDI_STATUS_DELAY_US);
                 }
                 mcdi->new_epoch = true;
+
+                /* Nobody was waiting for an MCDI request, so trigger a reset */
+                efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
         }
 
         spin_unlock(&mcdi->iface_lock);
@@ -963,7 +963,7 @@ static int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
                                bool *was_attached)
 {
         MCDI_DECLARE_BUF(inbuf, MC_CMD_DRV_ATTACH_IN_LEN);
-        MCDI_DECLARE_BUF(outbuf, MC_CMD_DRV_ATTACH_OUT_LEN);
+        MCDI_DECLARE_BUF(outbuf, MC_CMD_DRV_ATTACH_EXT_OUT_LEN);
         size_t outlen;
         int rc;
 
@@ -981,6 +981,22 @@ static int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
                 goto fail;
         }
 
+        /* We currently assume we have control of the external link
+         * and are completely trusted by firmware.  Abort probing
+         * if that's not true for this function.
+         */
+        if (driver_operating &&
+            outlen >= MC_CMD_DRV_ATTACH_EXT_OUT_LEN &&
+            (MCDI_DWORD(outbuf, DRV_ATTACH_EXT_OUT_FUNC_FLAGS) &
+             (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL |
+              1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED)) !=
+            (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL |
+             1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED)) {
+                netif_err(efx, probe, efx->net_dev,
+                          "This driver version only supports one function per port\n");
+                return -ENODEV;
+        }
+
         if (was_attached != NULL)
                 *was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE);
         return 0;
diff --git a/drivers/net/ethernet/sfc/mcdi_pcol.h b/drivers/net/ethernet/sfc/mcdi_pcol.h
index b5cf62492f8e..e0a63ddb7a6c 100644
--- a/drivers/net/ethernet/sfc/mcdi_pcol.h
+++ b/drivers/net/ethernet/sfc/mcdi_pcol.h
@@ -2574,8 +2574,58 @@
 #define          MC_CMD_MAC_RX_LANES01_DISP_ERR  0x39 /* enum */
 #define          MC_CMD_MAC_RX_LANES23_DISP_ERR  0x3a /* enum */
 #define          MC_CMD_MAC_RX_MATCH_FAULT  0x3b /* enum */
-#define          MC_CMD_GMAC_DMABUF_START  0x40 /* enum */
-#define          MC_CMD_GMAC_DMABUF_END    0x5f /* enum */
+/* enum: PM trunc_bb_overflow counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define          MC_CMD_MAC_PM_TRUNC_BB_OVERFLOW  0x3c
+/* enum: PM discard_bb_overflow counter. Valid for EF10 with
+ * PM_AND_RXDP_COUNTERS capability only.
+ */
+#define          MC_CMD_MAC_PM_DISCARD_BB_OVERFLOW  0x3d
+/* enum: PM trunc_vfifo_full counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define          MC_CMD_MAC_PM_TRUNC_VFIFO_FULL  0x3e
+/* enum: PM discard_vfifo_full counter. Valid for EF10 with
+ * PM_AND_RXDP_COUNTERS capability only.
+ */
+#define          MC_CMD_MAC_PM_DISCARD_VFIFO_FULL  0x3f
+/* enum: PM trunc_qbb counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define          MC_CMD_MAC_PM_TRUNC_QBB  0x40
+/* enum: PM discard_qbb counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define          MC_CMD_MAC_PM_DISCARD_QBB  0x41
+/* enum: PM discard_mapping counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define          MC_CMD_MAC_PM_DISCARD_MAPPING  0x42
+/* enum: RXDP counter: Number of packets dropped due to the queue being
+ * disabled. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only.
+ */
+#define          MC_CMD_MAC_RXDP_Q_DISABLED_PKTS  0x43
+/* enum: RXDP counter: Number of packets dropped by the DICPU. Valid for EF10
+ * with PM_AND_RXDP_COUNTERS capability only.
+ */
+#define          MC_CMD_MAC_RXDP_DI_DROPPED_PKTS  0x45
+/* enum: RXDP counter: Number of non-host packets. Valid for EF10 with
+ * PM_AND_RXDP_COUNTERS capability only.
+ */
+#define          MC_CMD_MAC_RXDP_STREAMING_PKTS  0x46
+/* enum: RXDP counter: Number of times an emergency descriptor fetch was
+ * performed. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only.
+ */
+#define          MC_CMD_MAC_RXDP_EMERGENCY_FETCH_CONDITIONS  0x47
+/* enum: RXDP counter: Number of times the DPCPU waited for an existing
+ * descriptor fetch. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only.
+ */
+#define          MC_CMD_MAC_RXDP_EMERGENCY_WAIT_CONDITIONS  0x48
+/* enum: Start of GMAC stats buffer space, for Siena only. */
+#define          MC_CMD_GMAC_DMABUF_START  0x40
+/* enum: End of GMAC stats buffer space, for Siena only. */
+#define          MC_CMD_GMAC_DMABUF_END    0x5f
 #define          MC_CMD_MAC_GENERATION_END 0x60 /* enum */
 #define          MC_CMD_MAC_NSTATS  0x61 /* enum */
 
@@ -5065,6 +5115,8 @@
 #define        MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_WIDTH 1
 #define        MC_CMD_GET_CAPABILITIES_OUT_MCAST_FILTER_CHAINING_LBN 26
 #define        MC_CMD_GET_CAPABILITIES_OUT_MCAST_FILTER_CHAINING_WIDTH 1
+#define        MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_LBN 27
+#define        MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_WIDTH 1
 /* RxDPCPU firmware id. */
 #define       MC_CMD_GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID_OFST 4
 #define       MC_CMD_GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID_LEN 2
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index e7dbd2dd202e..9826594c8a48 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -469,8 +469,7 @@ size_t efx_nic_describe_stats(const struct efx_hw_stat_desc *desc, size_t count,
  * @count: Length of the @desc array
  * @mask: Bitmask of which elements of @desc are enabled
  * @stats: Buffer to update with the converted statistics.  The length
- *      of this array must be at least the number of set bits in the
- *      first @count bits of @mask.
+ *      of this array must be at least @count.
  * @dma_buf: DMA buffer containing hardware statistics
  * @accumulate: If set, the converted values will be added rather than
  *      directly stored to the corresponding elements of @stats
@@ -503,11 +502,9 @@ void efx_nic_update_stats(const struct efx_hw_stat_desc *desc, size_t count,
                         }
 
                         if (accumulate)
-                                *stats += val;
+                                stats[index] += val;
                         else
-                                *stats = val;
+                                stats[index] = val;
                 }
-
-                ++stats;
         }
 }
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index fda29d39032f..890bbbe8320e 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -386,6 +386,18 @@ enum {
         EF10_STAT_rx_align_error,
         EF10_STAT_rx_length_error,
         EF10_STAT_rx_nodesc_drops,
+        EF10_STAT_rx_pm_trunc_bb_overflow,
+        EF10_STAT_rx_pm_discard_bb_overflow,
+        EF10_STAT_rx_pm_trunc_vfifo_full,
+        EF10_STAT_rx_pm_discard_vfifo_full,
+        EF10_STAT_rx_pm_trunc_qbb,
+        EF10_STAT_rx_pm_discard_qbb,
+        EF10_STAT_rx_pm_discard_mapping,
+        EF10_STAT_rx_dp_q_disabled_packets,
+        EF10_STAT_rx_dp_di_dropped_packets,
+        EF10_STAT_rx_dp_streaming_packets,
+        EF10_STAT_rx_dp_emerg_fetch,
+        EF10_STAT_rx_dp_emerg_wait,
         EF10_STAT_COUNT
 };
 
diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index 5730fe2445a6..98eedb90cdc3 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -1124,8 +1124,7 @@ static const char * chip_ids[ 16 ] =  {
                         void __iomem *__ioaddr = ioaddr;                \
                         if (__len >= 2 && (unsigned long)__ptr & 2) {   \
                                 __len -= 2;                             \
-                                SMC_outw(*(u16 *)__ptr, ioaddr,         \
-                                        DATA_REG(lp));          \
+                                SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \
                                 __ptr += 2;                             \
                         }                                               \
                         if (SMC_CAN_USE_DATACS && lp->datacs)           \
@@ -1133,8 +1132,7 @@ static const char * chip_ids[ 16 ] =  {
                         SMC_outsl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \
                         if (__len & 2) {                                \
                                 __ptr += (__len & ~3);                  \
-                                SMC_outw(*((u16 *)__ptr), ioaddr,       \
-                                         DATA_REG(lp));         \
+                                SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \
                         }                                               \
                 } else if (SMC_16BIT(lp))                               \
                         SMC_outsw(ioaddr, DATA_REG(lp), p, (l) >> 1);   \
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 79974e31187a..804846eb5fc2 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1771,8 +1771,8 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
         }
         data->mac_control = prop;
 
-        if (!of_property_read_u32(node, "dual_emac", &prop))
-                data->dual_emac = prop;
+        if (of_property_read_bool(node, "dual_emac"))
+                data->dual_emac = 1;
 
         /*
          * Populate all the child nodes here...
@@ -1782,7 +1782,7 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
         if (ret)
                 pr_warn("Doesn't have any child node\n");
 
-        for_each_node_by_name(slave_node, "slave") {
+        for_each_child_of_node(node, slave_node) {
                 struct cpsw_slave_data *slave_data = data->slave_data + i;
                 const void *mac_addr = NULL;
                 u32 phyid;
@@ -1791,6 +1791,10 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
                 struct device_node *mdio_node;
                 struct platform_device *mdio;
 
+                /* This is no slave child node, continue */
+                if (strcmp(slave_node->name, "slave"))
+                        continue;
+
                 parp = of_get_property(slave_node, "phy_id", &lenp);
                 if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) {
                         pr_err("Missing slave[%d] phy_id property\n", i);
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index c8f088ab5fdf..bdf697b184ae 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -32,7 +32,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #define DRV_NAME        "via-rhine"
-#define DRV_VERSION     "1.5.0"
+#define DRV_VERSION     "1.5.1"
 #define DRV_RELDATE     "2010-10-09"
 
 #include <linux/types.h>
@@ -1704,7 +1704,12 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb,
                 cpu_to_le32(TXDESC | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN));
 
         if (unlikely(vlan_tx_tag_present(skb))) {
-                rp->tx_ring[entry].tx_status = cpu_to_le32((vlan_tx_tag_get(skb)) << 16);
+                u16 vid_pcp = vlan_tx_tag_get(skb);
+
+                /* drop CFI/DEI bit, register needs VID and PCP */
+                vid_pcp = (vid_pcp & VLAN_VID_MASK) |
+                          ((vid_pcp & VLAN_PRIO_MASK) >> 1);
+                rp->tx_ring[entry].tx_status = cpu_to_le32((vid_pcp) << 16);
                 /* request tagging */
                 rp->tx_ring[entry].desc_length |= cpu_to_le32(0x020000);
         }
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index b88121f240ca..0029148077a9 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -297,6 +297,12 @@ static int temac_dma_bd_init(struct net_device *ndev)
                        lp->rx_bd_p + (sizeof(*lp->rx_bd_v) * (RX_BD_NUM - 1)));
         lp->dma_out(lp, TX_CURDESC_PTR, lp->tx_bd_p);
 
+        /* Init descriptor indexes */
+        lp->tx_bd_ci = 0;
+        lp->tx_bd_next = 0;
+        lp->tx_bd_tail = 0;
+        lp->rx_bd_ci = 0;
+
         return 0;
 
 out:
diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index 42e6deee6db5..0632d34905c7 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -82,7 +82,6 @@ struct mrf24j40 {
 
         struct mutex buffer_mutex; /* only used to protect buf */
         struct completion tx_complete;
-        struct work_struct irqwork;
         u8 *buf; /* 3 bytes. Used for SPI single-register transfers. */
 };
 
@@ -344,6 +343,8 @@ static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb)
         if (ret)
                 goto err;
 
+        INIT_COMPLETION(devrec->tx_complete);
+
         /* Set TXNTRIG bit of TXNCON to send packet */
         ret = read_short_reg(devrec, REG_TXNCON, &val);
         if (ret)
@@ -354,8 +355,6 @@ static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb)
                 val |= 0x4;
         write_short_reg(devrec, REG_TXNCON, val);
 
-        INIT_COMPLETION(devrec->tx_complete);
-
         /* Wait for the device to send the TX complete interrupt. */
         ret = wait_for_completion_interruptible_timeout(
                                                 &devrec->tx_complete,
@@ -590,17 +589,6 @@ static struct ieee802154_ops mrf24j40_ops = {
 static irqreturn_t mrf24j40_isr(int irq, void *data)
 {
         struct mrf24j40 *devrec = data;
-
-        disable_irq_nosync(irq);
-
-        schedule_work(&devrec->irqwork);
-
-        return IRQ_HANDLED;
-}
-
-static void mrf24j40_isrwork(struct work_struct *work)
-{
-        struct mrf24j40 *devrec = container_of(work, struct mrf24j40, irqwork);
         u8 intstat;
         int ret;
 
@@ -618,7 +606,7 @@ static void mrf24j40_isrwork(struct work_struct *work)
                 mrf24j40_handle_rx(devrec);
 
 out:
-        enable_irq(devrec->spi->irq);
+        return IRQ_HANDLED;
 }
 
 static int mrf24j40_probe(struct spi_device *spi)
@@ -642,7 +630,6 @@ static int mrf24j40_probe(struct spi_device *spi)
 
         mutex_init(&devrec->buffer_mutex);
         init_completion(&devrec->tx_complete);
-        INIT_WORK(&devrec->irqwork, mrf24j40_isrwork);
         devrec->spi = spi;
         spi_set_drvdata(spi, devrec);
 
@@ -688,11 +675,12 @@ static int mrf24j40_probe(struct spi_device *spi)
         val &= ~0x3; /* Clear RX mode (normal) */
         write_short_reg(devrec, REG_RXMCR, val);
 
-        ret = request_irq(spi->irq,
-                          mrf24j40_isr,
-                          IRQF_TRIGGER_FALLING,
-                          dev_name(&spi->dev),
-                          devrec);
+        ret = request_threaded_irq(spi->irq,
+                                   NULL,
+                                   mrf24j40_isr,
+                                   IRQF_TRIGGER_LOW|IRQF_ONESHOT,
+                                   dev_name(&spi->dev),
+                                   devrec);
 
         if (ret) {
                 dev_err(printdev(devrec), "Unable to get IRQ");
@@ -721,7 +709,6 @@ static int mrf24j40_remove(struct spi_device *spi)
         dev_dbg(printdev(devrec), "remove\n");
 
         free_irq(spi->irq, devrec);
-        flush_work(&devrec->irqwork); /* TODO: Is this the right call? */
         ieee802154_unregister_device(devrec->dev);
         ieee802154_free_device(devrec->dev);
         /* TODO: Will ieee802154_free_device() wait until ->xmit() is
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index a34d6bf5e43b..cc70ecfc7062 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -429,11 +429,13 @@ static void slip_write_wakeup(struct tty_struct *tty)
         if (!sl || sl->magic != SLIP_MAGIC || !netif_running(sl->dev))
                 return;
 
+        spin_lock(&sl->lock);
         if (sl->xleft <= 0)  {
                 /* Now serial buffer is almost free & we can start
                  * transmission of another packet */
                 sl->dev->stats.tx_packets++;
                 clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+                spin_unlock(&sl->lock);
                 sl_unlock(sl);
                 return;
         }
@@ -441,6 +443,7 @@ static void slip_write_wakeup(struct tty_struct *tty)
         actual = tty->ops->write(tty, sl->xhead, sl->xleft);
         sl->xleft -= actual;
         sl->xhead += actual;
+        spin_unlock(&sl->lock);
 }
 
 static void sl_tx_timeout(struct net_device *dev)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 807815fc9968..7cb105c103fe 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1293,7 +1293,8 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile,
         if (unlikely(!noblock))
                 add_wait_queue(&tfile->wq.wait, &wait);
         while (len) {
-                current->state = TASK_INTERRUPTIBLE;
+                if (unlikely(!noblock))
+                        current->state = TASK_INTERRUPTIBLE;
 
                 /* Read frames from the queue */
                 if (!(skb = skb_dequeue(&tfile->socket.sk->sk_receive_queue))) {
@@ -1320,9 +1321,10 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile,
                 break;
         }
 
-        current->state = TASK_RUNNING;
-        if (unlikely(!noblock))
+        if (unlikely(!noblock)) {
+                current->state = TASK_RUNNING;
                 remove_wait_queue(&tfile->wq.wait, &wait);
+        }
 
         return ret;
 }
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index 2dbb9460349d..c6867f926cff 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -303,7 +303,7 @@ static void dm9601_set_multicast(struct net_device *net)
                 rx_ctl |= 0x02;
         } else if (net->flags & IFF_ALLMULTI ||
                    netdev_mc_count(net) > DM_MAX_MCAST) {
-                rx_ctl |= 0x04;
+                rx_ctl |= 0x08;
         } else if (!netdev_mc_empty(net)) {
                 struct netdev_hw_addr *ha;
 
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 6312332afeba..3d6aaf79d8b2 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -714,7 +714,7 @@ static const struct usb_device_id products[] = {
         {QMI_FIXED_INTF(0x2357, 0x0201, 4)},    /* TP-LINK HSUPA Modem MA180 */
         {QMI_FIXED_INTF(0x2357, 0x9000, 4)},    /* TP-LINK MA260 */
         {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},    /* Telit LE920 */
-        {QMI_FIXED_INTF(0x1e2d, 0x12d1, 4)},    /* Cinterion PLxx */
+        {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)},    /* Cinterion PLxx */
 
         /* 4. Gobi 1000 devices */
         {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},    /* Acer Gobi Modem Device */
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 7b331e613e02..bf94e10a37c8 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1241,7 +1241,9 @@ static int build_dma_sg(const struct sk_buff *skb, struct urb *urb)
         if (num_sgs == 1)
                 return 0;
 
-        urb->sg = kmalloc(num_sgs * sizeof(struct scatterlist), GFP_ATOMIC);
+        /* reserve one for zero packet */
+        urb->sg = kmalloc((num_sgs + 1) * sizeof(struct scatterlist),
+                          GFP_ATOMIC);
         if (!urb->sg)
                 return -ENOMEM;
 
@@ -1305,7 +1307,7 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
                 if (build_dma_sg(skb, urb) < 0)
                         goto drop;
         }
-        entry->length = length = urb->transfer_buffer_length;
+        length = urb->transfer_buffer_length;
 
         /* don't assume the hardware handles USB_ZERO_PACKET
          * NOTE:  strictly conforming cdc-ether devices should expect
@@ -1317,15 +1319,18 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
         if (length % dev->maxpacket == 0) {
                 if (!(info->flags & FLAG_SEND_ZLP)) {
                         if (!(info->flags & FLAG_MULTI_PACKET)) {
-                                urb->transfer_buffer_length++;
-                                if (skb_tailroom(skb)) {
+                                length++;
+                                if (skb_tailroom(skb) && !urb->num_sgs) {
                                         skb->data[skb->len] = 0;
                                         __skb_put(skb, 1);
-                                }
+                                } else if (urb->num_sgs)
+                                        sg_set_buf(&urb->sg[urb->num_sgs++],
+                                                        dev->padding_pkt, 1);
                         }
                 } else
                         urb->transfer_flags |= URB_ZERO_PACKET;
         }
+        entry->length = urb->transfer_buffer_length = length;
 
         spin_lock_irqsave(&dev->txq.lock, flags);
         retval = usb_autopm_get_interface_async(dev->intf);
@@ -1509,6 +1514,7 @@ void usbnet_disconnect (struct usb_interface *intf)
 
         usb_kill_urb(dev->interrupt);
         usb_free_urb(dev->interrupt);
+        kfree(dev->padding_pkt);
 
         free_netdev(net);
 }
@@ -1679,9 +1685,16 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
         /* initialize max rx_qlen and tx_qlen */
         usbnet_update_max_qlen(dev);
 
+        if (dev->can_dma_sg && !(info->flags & FLAG_SEND_ZLP) &&
+                !(info->flags & FLAG_MULTI_PACKET)) {
+                dev->padding_pkt = kzalloc(1, GFP_KERNEL);
+                if (!dev->padding_pkt)
+                        goto out4;
+        }
+
         status = register_netdev (net);
         if (status)
-                goto out4;
+                goto out5;
         netif_info(dev, probe, dev->net,
                    "register '%s' at usb-%s-%s, %s, %pM\n",
                    udev->dev.driver->name,
@@ -1699,6 +1712,8 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 
         return 0;
 
+out5:
+        kfree(dev->padding_pkt);
 out4:
         usb_free_urb(dev->interrupt);
 out3:
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index d1292fe746bc..2ef5b6219f3f 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -952,8 +952,7 @@ void vxlan_sock_release(struct vxlan_sock *vs)
 
         spin_lock(&vn->sock_lock);
         hlist_del_rcu(&vs->hlist);
-        smp_wmb();
-        vs->sock->sk->sk_user_data = NULL;
+        rcu_assign_sk_user_data(vs->sock->sk, NULL);
         vxlan_notify_del_rx_port(sk);
         spin_unlock(&vn->sock_lock);
 
@@ -1048,8 +1047,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 
         port = inet_sk(sk)->inet_sport;
 
-        smp_read_barrier_depends();
-        vs = (struct vxlan_sock *)sk->sk_user_data;
+        vs = rcu_dereference_sk_user_data(sk);
         if (!vs)
                 goto drop;
 
@@ -2302,8 +2300,7 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port,
         atomic_set(&vs->refcnt, 1);
         vs->rcv = rcv;
         vs->data = data;
-        smp_wmb();
-        vs->sock->sk->sk_user_data = vs;
+        rcu_assign_sk_user_data(vs->sock->sk, vs);
 
         spin_lock(&vn->sock_lock);
         hlist_add_head_rcu(&vs->hlist, vs_head(net, port));
diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c
index 3f0c4f268751..bcfff0d62de4 100644
--- a/drivers/net/wan/farsync.c
+++ b/drivers/net/wan/farsync.c
@@ -1972,6 +1972,7 @@ fst_get_iface(struct fst_card_info *card, struct fst_port_info *port,
         }
 
         i = port->index;
+        memset(&sync, 0, sizeof(sync));
         sync.clock_rate = FST_RDL(card, portConfig[i].lineSpeed);
         /* Lucky card and linux use same encoding here */
         sync.clock_type = FST_RDB(card, portConfig[i].internalClock) ==
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index a53782ef1540..1b08d8798372 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -24,6 +24,12 @@
 struct backend_info {
         struct xenbus_device *dev;
         struct xenvif *vif;
+
+        /* This is the state that will be reflected in xenstore when any
+         * active hotplug script completes.
+         */
+        enum xenbus_state state;
+
         enum xenbus_state frontend_state;
         struct xenbus_watch hotplug_status_watch;
         u8 have_hotplug_status_watch:1;
@@ -33,11 +39,15 @@ static int connect_rings(struct backend_info *);
 static void connect(struct backend_info *);
 static void backend_create_xenvif(struct backend_info *be);
 static void unregister_hotplug_status_watch(struct backend_info *be);
+static void set_backend_state(struct backend_info *be,
+                              enum xenbus_state state);
 
 static int netback_remove(struct xenbus_device *dev)
 {
         struct backend_info *be = dev_get_drvdata(&dev->dev);
 
+        set_backend_state(be, XenbusStateClosed);
+
         unregister_hotplug_status_watch(be);
         if (be->vif) {
                 kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE);
@@ -136,6 +146,8 @@ static int netback_probe(struct xenbus_device *dev,
         if (err)
                 goto fail;
 
+        be->state = XenbusStateInitWait;
+
         /* This kicks hotplug scripts, so do it immediately. */
         backend_create_xenvif(be);
 
@@ -208,24 +220,113 @@ static void backend_create_xenvif(struct backend_info *be)
         kobject_uevent(&dev->dev.kobj, KOBJ_ONLINE);
 }
 
-
-static void disconnect_backend(struct xenbus_device *dev)
+static void backend_disconnect(struct backend_info *be)
 {
-        struct backend_info *be = dev_get_drvdata(&dev->dev);
-
         if (be->vif)
                 xenvif_disconnect(be->vif);
 }
 
-static void destroy_backend(struct xenbus_device *dev)
+static void backend_connect(struct backend_info *be)
 {
-        struct backend_info *be = dev_get_drvdata(&dev->dev);
+        if (be->vif)
+                connect(be);
+}
 
-        if (be->vif) {
-                kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE);
-                xenbus_rm(XBT_NIL, dev->nodename, "hotplug-status");
-                xenvif_free(be->vif);
-                be->vif = NULL;
+static inline void backend_switch_state(struct backend_info *be,
+                                        enum xenbus_state state)
+{
+        struct xenbus_device *dev = be->dev;
+
+        pr_debug("%s -> %s\n", dev->nodename, xenbus_strstate(state));
+        be->state = state;
+
+        /* If we are waiting for a hotplug script then defer the
+         * actual xenbus state change.
+         */
+        if (!be->have_hotplug_status_watch)
+                xenbus_switch_state(dev, state);
+}
+
+/* Handle backend state transitions:
+ *
+ * The backend state starts in InitWait and the following transitions are
+ * allowed.
+ *
+ * InitWait -> Connected
+ *
+ *    ^    \         |
+ *    |     \        |
+ *    |      \       |
+ *    |       \      |
+ *    |        \     |
+ *    |         \    |
+ *    |          V   V
+ *
+ *  Closed  <-> Closing
+ *
+ * The state argument specifies the eventual state of the backend and the
+ * function transitions to that state via the shortest path.
+ */
+static void set_backend_state(struct backend_info *be,
+                              enum xenbus_state state)
+{
+        while (be->state != state) {
+                switch (be->state) {
+                case XenbusStateClosed:
+                        switch (state) {
+                        case XenbusStateInitWait:
+                        case XenbusStateConnected:
+                                pr_info("%s: prepare for reconnect\n",
+                                        be->dev->nodename);
+                                backend_switch_state(be, XenbusStateInitWait);
+                                break;
+                        case XenbusStateClosing:
+                                backend_switch_state(be, XenbusStateClosing);
+                                break;
+                        default:
+                                BUG();
+                        }
+                        break;
+                case XenbusStateInitWait:
+                        switch (state) {
+                        case XenbusStateConnected:
+                                backend_connect(be);
+                                backend_switch_state(be, XenbusStateConnected);
+                                break;
+                        case XenbusStateClosing:
+                        case XenbusStateClosed:
+                                backend_switch_state(be, XenbusStateClosing);
+                                break;
+                        default:
+                                BUG();
+                        }
+                        break;
+                case XenbusStateConnected:
+                        switch (state) {
+                        case XenbusStateInitWait:
+                        case XenbusStateClosing:
+                        case XenbusStateClosed:
+                                backend_disconnect(be);
+                                backend_switch_state(be, XenbusStateClosing);
+                                break;
+                        default:
+                                BUG();
+                        }
+                        break;
+                case XenbusStateClosing:
+                        switch (state) {
+                        case XenbusStateInitWait:
+                        case XenbusStateConnected:
+                        case XenbusStateClosed:
+                                backend_switch_state(be, XenbusStateClosed);
+                                break;
+                        default:
+                                BUG();
+                        }
+                        break;
+                default:
+                        BUG();
+                }
         }
 }
 
@@ -237,40 +338,33 @@ static void frontend_changed(struct xenbus_device *dev,
 {
         struct backend_info *be = dev_get_drvdata(&dev->dev);
 
-        pr_debug("frontend state %s\n", xenbus_strstate(frontend_state));
+        pr_debug("%s -> %s\n", dev->otherend, xenbus_strstate(frontend_state));
 
         be->frontend_state = frontend_state;
 
         switch (frontend_state) {
         case XenbusStateInitialising:
-                if (dev->state == XenbusStateClosed) {
-                        pr_info("%s: prepare for reconnect\n", dev->nodename);
-                        xenbus_switch_state(dev, XenbusStateInitWait);
-                }
+                set_backend_state(be, XenbusStateInitWait);
                 break;
 
         case XenbusStateInitialised:
                 break;
 
         case XenbusStateConnected:
-                if (dev->state == XenbusStateConnected)
-                        break;
-                if (be->vif)
-                        connect(be);
+                set_backend_state(be, XenbusStateConnected);
                 break;
 
         case XenbusStateClosing:
-                disconnect_backend(dev);
-                xenbus_switch_state(dev, XenbusStateClosing);
+                set_backend_state(be, XenbusStateClosing);
                 break;
 
         case XenbusStateClosed:
-                xenbus_switch_state(dev, XenbusStateClosed);
+                set_backend_state(be, XenbusStateClosed);
                 if (xenbus_dev_is_online(dev))
                         break;
-                destroy_backend(dev);
                 /* fall through if not online */
         case XenbusStateUnknown:
+                set_backend_state(be, XenbusStateClosed);
                 device_unregister(&dev->dev);
                 break;
 
@@ -363,7 +457,9 @@ static void hotplug_status_changed(struct xenbus_watch *watch,
         if (IS_ERR(str))
                 return;
         if (len == sizeof("connected")-1 && !memcmp(str, "connected", len)) {
-                xenbus_switch_state(be->dev, XenbusStateConnected);
+                /* Complete any pending state change */
+                xenbus_switch_state(be->dev, be->state);
+
                 /* Not interested in this watch anymore. */
                 unregister_hotplug_status_watch(be);
         }
@@ -393,12 +489,8 @@ static void connect(struct backend_info *be)
         err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch,
                                    hotplug_status_changed,
                                    "%s/%s", dev->nodename, "hotplug-status");
-        if (err) {
-                /* Switch now, since we can't do a watch. */
-                xenbus_switch_state(dev, XenbusStateConnected);
-        } else {
+        if (!err)
                 be->have_hotplug_status_watch = 1;
-        }
 
         netif_wake_queue(be->vif->dev);
 }
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 7c29ee4ed0ae..b0299e6d9a3f 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -47,6 +47,9 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context)
         if (event != ACPI_NOTIFY_DEVICE_WAKE || !pci_dev)
                 return;
 
+        if (pci_dev->pme_poll)
+                pci_dev->pme_poll = false;
+
         if (pci_dev->current_state == PCI_D3cold) {
                 pci_wakeup_event(pci_dev);
                 pm_runtime_resume(&pci_dev->dev);
@@ -57,9 +60,6 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context)
         if (pci_dev->pme_support)
                 pci_check_pme_status(pci_dev);
 
-        if (pci_dev->pme_poll)
-                pci_dev->pme_poll = false;
-
         pci_wakeup_event(pci_dev);
         pm_runtime_resume(&pci_dev->dev);
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e8ccf6c0f08a..bdd64b1b4817 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1155,8 +1155,14 @@ static void pci_enable_bridge(struct pci_dev *dev)
 
         pci_enable_bridge(dev->bus->self);
 
-        if (pci_is_enabled(dev))
+        if (pci_is_enabled(dev)) {
+                if (!dev->is_busmaster) {
+                        dev_warn(&dev->dev, "driver skip pci_set_master, fix it!\n");
+                        pci_set_master(dev);
+                }
                 return;
+        }
+
         retval = pci_enable_device(dev);
         if (retval)
                 dev_err(&dev->dev, "Error enabling bridge (%d), continuing\n",
diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c
index 1a7816390773..b9f2653e4ef9 100644
--- a/drivers/regulator/da9063-regulator.c
+++ b/drivers/regulator/da9063-regulator.c
@@ -709,7 +709,7 @@ static struct da9063_regulators_pdata *da9063_parse_regulators_dt(
                 struct of_regulator_match **da9063_reg_matches)
 {
         da9063_reg_matches = NULL;
-        return PTR_ERR(-ENODEV);
+        return ERR_PTR(-ENODEV);
 }
 #endif
 
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 488dfe7ce9a6..7e2b165972e6 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -201,13 +201,7 @@ static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500};
 #define SMPS_CTRL_MODE_ECO              0x02
 #define SMPS_CTRL_MODE_PWM              0x03
 
-/* These values are derived from the data sheet. And are the number of steps
- * where there is a voltage change, the ranges at beginning and end of register
- * max/min values where there are no change are ommitted.
- *
- * So they are basically (maxV-minV)/stepV
- */
-#define PALMAS_SMPS_NUM_VOLTAGES        117
+#define PALMAS_SMPS_NUM_VOLTAGES        122
 #define PALMAS_SMPS10_NUM_VOLTAGES      2
 #define PALMAS_LDO_NUM_VOLTAGES         50
 
@@ -979,6 +973,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
                         pmic->desc[id].min_uV = 900000;
                         pmic->desc[id].uV_step = 50000;
                         pmic->desc[id].linear_min_sel = 1;
+                        pmic->desc[id].enable_time = 500;
                         pmic->desc[id].vsel_reg =
                                         PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
                                                 palmas_regs_info[id].vsel_addr);
@@ -997,6 +992,11 @@ static int palmas_regulators_probe(struct platform_device *pdev)
                                 pmic->desc[id].min_uV = 450000;
                                 pmic->desc[id].uV_step = 25000;
                         }
+
+                        /* LOD6 in vibrator mode will have enable time 2000us */
+                        if (pdata && pdata->ldo6_vibrator &&
+                                (id == PALMAS_REG_LDO6))
+                                pmic->desc[id].enable_time = 2000;
                 } else {
                         pmic->desc[id].n_voltages = 1;
                         pmic->desc[id].ops = &palmas_ops_extreg;
diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index d8e3e1262bc2..20c271d49dcb 100644
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -279,8 +279,12 @@ static int ti_abb_set_opp(struct regulator_dev *rdev, struct ti_abb *abb,
         ti_abb_rmw(regs->opp_sel_mask, info->opp_sel, regs->control_reg,
                    abb->base);
 
-        /* program LDO VBB vset override if needed */
-        if (abb->ldo_base)
+        /*
+         * program LDO VBB vset override if needed for !bypass mode
+         * XXX: Do not switch sequence - for !bypass, LDO override reset *must*
+         * be performed *before* switch to bias mode else VBB glitches.
+         */
+        if (abb->ldo_base && info->opp_sel != TI_ABB_NOMINAL_OPP)
                 ti_abb_program_ldovbb(dev, abb, info);
 
         /* Initiate ABB ldo change */
@@ -295,6 +299,14 @@ static int ti_abb_set_opp(struct regulator_dev *rdev, struct ti_abb *abb,
         if (ret)
                 goto out;
 
+        /*
+         * Reset LDO VBB vset override bypass mode
+         * XXX: Do not switch sequence - for bypass, LDO override reset *must*
+         * be performed *after* switch to bypass else VBB glitches.
+         */
+        if (abb->ldo_base && info->opp_sel == TI_ABB_NOMINAL_OPP)
+                ti_abb_program_ldovbb(dev, abb, info);
+
 out:
         return ret;
 }
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 1432b26ef2e9..2205fbc2c37b 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -63,7 +63,7 @@ static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data)
  */
 
 static const struct regulator_linear_range wm831x_gp_ldo_ranges[] = {
-        { .min_uV =  900000, .max_uV = 1650000, .min_sel =  0, .max_sel = 14,
+        { .min_uV =  900000, .max_uV = 1600000, .min_sel =  0, .max_sel = 14,
           .uV_step =  50000 },
         { .min_uV = 1700000, .max_uV = 3300000, .min_sel = 15, .max_sel = 31,
           .uV_step = 100000 },
@@ -332,7 +332,7 @@ static struct platform_driver wm831x_gp_ldo_driver = {
  */
 
 static const struct regulator_linear_range wm831x_aldo_ranges[] = {
-        { .min_uV = 1000000, .max_uV = 1650000, .min_sel =  0, .max_sel = 12,
+        { .min_uV = 1000000, .max_uV = 1600000, .min_sel =  0, .max_sel = 12,
           .uV_step =  50000 },
         { .min_uV = 1700000, .max_uV = 3500000, .min_sel = 13, .max_sel = 31,
           .uV_step = 100000 },
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 835b5f0f344e..61ca9292a429 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -543,7 +543,7 @@ static int wm8350_dcdc_set_suspend_mode(struct regulator_dev *rdev,
 }
 
 static const struct regulator_linear_range wm8350_ldo_ranges[] = {
-        { .min_uV =  900000, .max_uV = 1750000, .min_sel =  0, .max_sel = 15,
+        { .min_uV =  900000, .max_uV = 1650000, .min_sel =  0, .max_sel = 15,
           .uV_step =  50000 },
         { .min_uV = 1800000, .max_uV = 3300000, .min_sel = 16, .max_sel = 31,
           .uV_step = 100000 },
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index a84aab47a113..f73287eab373 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -96,6 +96,15 @@ config COMEDI_SKEL
           To compile this driver as a module, choose M here: the module will be
           called skel.
 
+config COMEDI_SSV_DNP
+        tristate "SSV Embedded Systems DIL/Net-PC support"
+        depends on X86_32 || COMPILE_TEST
+        ---help---
+          Enable support for SSV Embedded Systems DIL/Net-PC
+
+          To compile this driver as a module, choose M here: the module will be
+          called ssv_dnp.
+
 endif # COMEDI_MISC_DRIVERS
 
 menuconfig COMEDI_ISA_DRIVERS
@@ -386,6 +395,14 @@ config COMEDI_DMM32AT
           To compile this driver as a module, choose M here: the module will be
           called dmm32at.
 
+config COMEDI_UNIOXX5
+        tristate "Fastwel UNIOxx-5 analog and digital io board support"
+        ---help---
+          Enable support for Fastwel UNIOxx-5 (analog and digital i/o) boards
+
+          To compile this driver as a module, choose M here: the module will be
+          called unioxx5.
+
 config COMEDI_FL512
         tristate "FL512 ISA card support"
         ---help---
@@ -855,14 +872,6 @@ config COMEDI_DYNA_PCI10XX
           To compile this driver as a module, choose M here: the module will be
           called dyna_pci10xx.
 
-config COMEDI_UNIOXX5
-        tristate "Fastwel UNIOxx-5 analog and digital io board support"
-        ---help---
-          Enable support for Fastwel UNIOxx-5 (analog and digital i/o) boards
-
-          To compile this driver as a module, choose M here: the module will be
-          called unioxx5.
-
 config COMEDI_GSC_HPDI
         tristate "General Standards PCI-HPDI32 / PMC-HPDI32 support"
         select COMEDI_FC
@@ -1085,14 +1094,6 @@ config COMEDI_S626
           To compile this driver as a module, choose M here: the module will be
           called s626.
 
-config COMEDI_SSV_DNP
-        tristate "SSV Embedded Systems DIL/Net-PC support"
-        ---help---
-          Enable support for SSV Embedded Systems DIL/Net-PC
-
-          To compile this driver as a module, choose M here: the module will be
-          called ssv_dnp.
-
 config COMEDI_MITE
         depends on HAS_DMA
         tristate
diff --git a/drivers/staging/dgap/dgap_driver.c b/drivers/staging/dgap/dgap_driver.c
index 724a685753dd..40ef785a0428 100644
--- a/drivers/staging/dgap/dgap_driver.c
+++ b/drivers/staging/dgap/dgap_driver.c
@@ -474,7 +474,7 @@ static void dgap_cleanup_board(struct board_t *brd)
 
                 DGAP_LOCK(dgap_global_lock, flags);
                 brd->msgbuf = NULL;
-                printk(brd->msgbuf_head);
+                printk("%s", brd->msgbuf_head);
                 kfree(brd->msgbuf_head);
                 brd->msgbuf_head = NULL;
                 DGAP_UNLOCK(dgap_global_lock, flags);
@@ -628,7 +628,7 @@ static int dgap_found_board(struct pci_dev *pdev, int id)
         DPR_INIT(("dgap_scan(%d) - printing out the msgbuf\n", i));
         DGAP_LOCK(dgap_global_lock, flags);
         brd->msgbuf = NULL;
-        printk(brd->msgbuf_head);
+        printk("%s", brd->msgbuf_head);
         kfree(brd->msgbuf_head);
         brd->msgbuf_head = NULL;
         DGAP_UNLOCK(dgap_global_lock, flags);
@@ -955,25 +955,28 @@ static void dgap_mbuf(struct board_t *brd, const char *fmt, ...) {
         char            buf[1024];
         int             i;
         unsigned long   flags;
+        size_t          length;
 
         DGAP_LOCK(dgap_global_lock, flags);
 
         /* Format buf using fmt and arguments contained in ap. */
         va_start(ap, fmt);
-        i = vsprintf(buf, fmt,  ap);
+        i = vsnprintf(buf, sizeof(buf), fmt,  ap);
         va_end(ap);
 
         DPR((buf));
 
         if (!brd || !brd->msgbuf) {
-                printk(buf);
+                printk("%s", buf);
                 DGAP_UNLOCK(dgap_global_lock, flags);
                 return;
         }
 
-        memcpy(brd->msgbuf, buf, strlen(buf));
-        brd->msgbuf += strlen(buf);
-        *brd->msgbuf = 0;
+        length = strlen(buf) + 1;
+        if (brd->msgbuf - brd->msgbuf_head < length)
+                length = brd->msgbuf - brd->msgbuf_head;
+        memcpy(brd->msgbuf, buf, length);
+        brd->msgbuf += length;
 
         DGAP_UNLOCK(dgap_global_lock, flags);
 }
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index f8c1e22585d6..71d2b83cc3a1 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -454,7 +454,7 @@ static void dgnc_cleanup_board(struct board_t *brd)
 
                 DGNC_LOCK(dgnc_global_lock, flags);
                 brd->msgbuf = NULL;
-                printk(brd->msgbuf_head);
+                printk("%s", brd->msgbuf_head);
                 kfree(brd->msgbuf_head);
                 brd->msgbuf_head = NULL;
                 DGNC_UNLOCK(dgnc_global_lock, flags);
@@ -710,7 +710,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
         DPR_INIT(("dgnc_scan(%d) - printing out the msgbuf\n", i));
         DGNC_LOCK(dgnc_global_lock, flags);
         brd->msgbuf = NULL;
-        printk(brd->msgbuf_head);
+        printk("%s", brd->msgbuf_head);
         kfree(brd->msgbuf_head);
         brd->msgbuf_head = NULL;
         DGNC_UNLOCK(dgnc_global_lock, flags);
diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index db4d6dc03243..b36feb080cba 100644
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -37,7 +37,7 @@ config IIO_SIMPLE_DUMMY_EVENTS
 
 config IIO_SIMPLE_DUMMY_BUFFER
        boolean "Buffered capture support"
-       depends on IIO_KFIFO_BUF
+       select IIO_KFIFO_BUF
        help
          Add buffered data capture to the simple dummy driver.
 
diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c
index 351936c3efd6..e4998e4d4434 100644
--- a/drivers/staging/iio/light/isl29018.c
+++ b/drivers/staging/iio/light/isl29018.c
@@ -563,6 +563,7 @@ static int isl29018_probe(struct i2c_client *client,
         mutex_init(&chip->lock);
 
         chip->lux_scale = 1;
+        chip->lux_uscale = 0;
         chip->range = 1000;
         chip->adc_bit = 16;
         chip->suspended = false;
diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index d2748c329eae..c3f3f539e787 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -229,7 +229,7 @@ static int hmc5843_read_measurement(struct iio_dev *indio_dev,
         if (result < 0)
                 return -EINVAL;
 
-        *val = result;
+        *val = sign_extend32(result, 15);
         return IIO_VAL_INT;
 }
 
diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c
index a802cf2491d6..4c6d2041260b 100644
--- a/drivers/staging/iio/meter/ade7854-spi.c
+++ b/drivers/staging/iio/meter/ade7854-spi.c
@@ -299,7 +299,7 @@ static int ade7854_spi_probe(struct spi_device *spi)
         if (ret)
                 iio_device_free(indio_dev);
 
-        return 0;
+        return ret;
 }
 
 static int ade7854_spi_remove(struct spi_device *spi)
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 47c5888461ff..a2e52a0c53c9 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -41,7 +41,6 @@ struct imx_drm_device {
         struct list_head                        encoder_list;
         struct list_head                        connector_list;
         struct mutex                            mutex;
-        int                                     references;
         int                                     pipes;
         struct drm_fbdev_cma                    *fbhelper;
 };
@@ -241,8 +240,6 @@ struct drm_device *imx_drm_device_get(void)
                 }
         }
 
-        imxdrm->references++;
-
         return imxdrm->drm;
 
 unwind_crtc:
@@ -280,8 +277,6 @@ void imx_drm_device_put(void)
         list_for_each_entry(enc, &imxdrm->encoder_list, list)
                 module_put(enc->owner);
 
-        imxdrm->references--;
-
         mutex_unlock(&imxdrm->mutex);
 }
 EXPORT_SYMBOL_GPL(imx_drm_device_put);
@@ -485,7 +480,7 @@ int imx_drm_add_crtc(struct drm_crtc *crtc,
 
         mutex_lock(&imxdrm->mutex);
 
-        if (imxdrm->references) {
+        if (imxdrm->drm->open_count) {
                 ret = -EBUSY;
                 goto err_busy;
         }
@@ -564,7 +559,7 @@ int imx_drm_add_encoder(struct drm_encoder *encoder,
 
         mutex_lock(&imxdrm->mutex);
 
-        if (imxdrm->references) {
+        if (imxdrm->drm->open_count) {
                 ret = -EBUSY;
                 goto err_busy;
         }
@@ -709,7 +704,7 @@ int imx_drm_add_connector(struct drm_connector *connector,
 
         mutex_lock(&imxdrm->mutex);
 
-        if (imxdrm->references) {
+        if (imxdrm->drm->open_count) {
                 ret = -EBUSY;
                 goto err_busy;
         }
diff --git a/drivers/staging/line6/toneport.c b/drivers/staging/line6/toneport.c
index 2f44d56700af..776d3632dc7d 100644
--- a/drivers/staging/line6/toneport.c
+++ b/drivers/staging/line6/toneport.c
@@ -244,13 +244,17 @@ static int snd_toneport_source_put(struct snd_kcontrol *kcontrol,
         struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
         struct usb_line6_toneport *toneport =
             (struct usb_line6_toneport *)line6pcm->line6;
+        unsigned int source;
 
-        if (ucontrol->value.enumerated.item[0] == toneport->source)
+        source = ucontrol->value.enumerated.item[0];
+        if (source >= ARRAY_SIZE(toneport_source_info))
+                return -EINVAL;
+        if (source == toneport->source)
                 return 0;
 
-        toneport->source = ucontrol->value.enumerated.item[0];
+        toneport->source = source;
         toneport_send_cmd(toneport->line6.usbdev,
-                          toneport_source_info[toneport->source].code, 0x0000);
+                          toneport_source_info[source].code, 0x0000);
         return 1;
 }
 
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
index 086ca3d7241b..26b49a24b3df 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
@@ -1802,7 +1802,7 @@ kiblnd_recv (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed,
 int
 kiblnd_thread_start(int (*fn)(void *arg), void *arg, char *name)
 {
-        struct task_struct *task = kthread_run(fn, arg, name);
+        struct task_struct *task = kthread_run(fn, arg, "%s", name);
 
         if (IS_ERR(task))
                 return PTR_ERR(task);
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
index 2c581b7fa8ad..68a4f52ec998 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
@@ -1005,7 +1005,7 @@ ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
 int
 ksocknal_thread_start(int (*fn)(void *arg), void *arg, char *name)
 {
-        struct task_struct *task = kthread_run(fn, arg, name);
+        struct task_struct *task = kthread_run(fn, arg, "%s", name);
 
         if (IS_ERR(task))
                 return PTR_ERR(task);
diff --git a/drivers/staging/lustre/lustre/Kconfig b/drivers/staging/lustre/lustre/Kconfig
index 4e898e491860..2156a44d0740 100644
--- a/drivers/staging/lustre/lustre/Kconfig
+++ b/drivers/staging/lustre/lustre/Kconfig
@@ -1,6 +1,6 @@
 config LUSTRE_FS
         tristate "Lustre file system client support"
-        depends on INET && m
+        depends on INET && m && !MIPS && !XTENSA && !SUPERH
         select LNET
         select CRYPTO
         select CRYPTO_CRC32
@@ -52,7 +52,7 @@ config LUSTRE_DEBUG_EXPENSIVE_CHECK
 config LUSTRE_TRANSLATE_ERRNOS
         bool
         depends on LUSTRE_FS && !X86
-        default true
+        default y
 
 config LUSTRE_LLITE_LLOOP
         bool "Lustre virtual block device"
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
index 3916bda3004c..a100a0b96381 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
@@ -800,9 +800,9 @@ static int ldlm_bl_thread_start(struct ldlm_bl_pool *blp)
 
         init_completion(&bltd.bltd_comp);
         bltd.bltd_num = atomic_read(&blp->blp_num_threads);
-        snprintf(bltd.bltd_name, sizeof(bltd.bltd_name) - 1,
+        snprintf(bltd.bltd_name, sizeof(bltd.bltd_name),
                 "ldlm_bl_%02d", bltd.bltd_num);
-        task = kthread_run(ldlm_bl_thread_main, &bltd, bltd.bltd_name);
+        task = kthread_run(ldlm_bl_thread_main, &bltd, "%s", bltd.bltd_name);
         if (IS_ERR(task)) {
                 CERROR("cannot start LDLM thread ldlm_bl_%02d: rc %ld\n",
                        atomic_read(&blp->blp_num_threads), PTR_ERR(task));
diff --git a/drivers/staging/lustre/lustre/libcfs/workitem.c b/drivers/staging/lustre/lustre/libcfs/workitem.c
index 462172d1a756..1a55c81892e0 100644
--- a/drivers/staging/lustre/lustre/libcfs/workitem.c
+++ b/drivers/staging/lustre/lustre/libcfs/workitem.c
@@ -397,7 +397,7 @@ cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab,
                                  sched->ws_name, sched->ws_nthreads);
                 }
 
-                task = kthread_run(cfs_wi_scheduler, sched, name);
+                task = kthread_run(cfs_wi_scheduler, sched, "%s", name);
                 if (!IS_ERR(task)) {
                         nthrs--;
                         continue;
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index 2644edf438c1..c8b43442dc74 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -1387,7 +1387,7 @@ echo_copyout_lsm (struct lov_stripe_md *lsm, void *_ulsm, int ulsm_nob)
         if (nob > ulsm_nob)
                 return (-EINVAL);
 
-        if (copy_to_user (ulsm, lsm, sizeof(ulsm)))
+        if (copy_to_user (ulsm, lsm, sizeof(*ulsm)))
                 return (-EFAULT);
 
         for (i = 0; i < lsm->lsm_stripe_count; i++) {
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
index 227a0ae9593b..5dec771d70ee 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
@@ -383,8 +383,8 @@ int ptlrpc_start_pinger(void)
 
         /* CLONE_VM and CLONE_FILES just avoid a needless copy, because we
          * just drop the VM and FILES in cfs_daemonize_ctxt() right away. */
-        rc = PTR_ERR(kthread_run(ptlrpc_pinger_main,
-                                 &pinger_thread, pinger_thread.t_name));
+        rc = PTR_ERR(kthread_run(ptlrpc_pinger_main, &pinger_thread,
+                                 "%s", pinger_thread.t_name));
         if (IS_ERR_VALUE(rc)) {
                 CERROR("cannot start thread: %d\n", rc);
                 return rc;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
index fbdeff65d059..89c9be96f454 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
@@ -615,7 +615,7 @@ int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc)
         init_completion(&pc->pc_starting);
         init_completion(&pc->pc_finishing);
         spin_lock_init(&pc->pc_lock);
-        strncpy(pc->pc_name, name, sizeof(pc->pc_name) - 1);
+        strlcpy(pc->pc_name, name, sizeof(pc->pc_name));
         pc->pc_set = ptlrpc_prep_set();
         if (pc->pc_set == NULL)
                 GOTO(out, rc = -ENOMEM);
@@ -638,7 +638,7 @@ int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc)
                                 GOTO(out, rc);
                 }
 
-                task = kthread_run(ptlrpcd, pc, pc->pc_name);
+                task = kthread_run(ptlrpcd, pc, "%s", pc->pc_name);
                 if (IS_ERR(task))
                         GOTO(out, rc = PTR_ERR(task));
 
@@ -745,7 +745,7 @@ static int ptlrpcd_init(void)
         if (ptlrpcds == NULL)
                 GOTO(out, rc = -ENOMEM);
 
-        snprintf(name, 15, "ptlrpcd_rcv");
+        snprintf(name, sizeof(name), "ptlrpcd_rcv");
         set_bit(LIOD_RECOVERY, &ptlrpcds->pd_thread_rcv.pc_flags);
         rc = ptlrpcd_start(-1, nthreads, name, &ptlrpcds->pd_thread_rcv);
         if (rc < 0)
@@ -764,7 +764,7 @@ static int ptlrpcd_init(void)
          *      unnecessary dependency. But how to distribute async RPCs load
          *      among all the ptlrpc daemons becomes another trouble. */
         for (i = 0; i < nthreads; i++) {
-                snprintf(name, 15, "ptlrpcd_%d", i);
+                snprintf(name, sizeof(name), "ptlrpcd_%d", i);
                 rc = ptlrpcd_start(i, nthreads, name, &ptlrpcds->pd_threads[i]);
                 if (rc < 0)
                         GOTO(out, rc);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
index e90c8fb7da6a..6547f46a7729 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
@@ -59,8 +59,8 @@
  ****************************************/
 
 
-#define PTRS_PER_PAGE   (PAGE_CACHE_SIZE / sizeof(void *))
-#define PAGES_PER_POOL  (PTRS_PER_PAGE)
+#define POINTERS_PER_PAGE       (PAGE_CACHE_SIZE / sizeof(void *))
+#define PAGES_PER_POOL          (POINTERS_PER_PAGE)
 
 #define IDLE_IDX_MAX        (100)
 #define IDLE_IDX_WEIGHT  (3)
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index ac8b5fd2300b..acf75f3873d1 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -2718,15 +2718,15 @@ int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait)
         spin_unlock(&svcpt->scp_lock);
 
         if (svcpt->scp_cpt >= 0) {
-                snprintf(thread->t_name, PTLRPC_THR_NAME_LEN, "%s%02d_%03d",
+                snprintf(thread->t_name, sizeof(thread->t_name), "%s%02d_%03d",
                          svc->srv_thread_name, svcpt->scp_cpt, thread->t_id);
         } else {
-                snprintf(thread->t_name, PTLRPC_THR_NAME_LEN, "%s_%04d",
+                snprintf(thread->t_name, sizeof(thread->t_name), "%s_%04d",
                          svc->srv_thread_name, thread->t_id);
         }
 
         CDEBUG(D_RPCTRACE, "starting thread '%s'\n", thread->t_name);
-        rc = PTR_ERR(kthread_run(ptlrpc_main, thread, thread->t_name));
+        rc = PTR_ERR(kthread_run(ptlrpc_main, thread, "%s", thread->t_name));
         if (IS_ERR_VALUE(rc)) {
                 CERROR("cannot start thread '%s': rc %d\n",
                        thread->t_name, rc);
diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index d7b3c82b5ead..45dfe94199ae 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -604,7 +604,7 @@ int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number,
                         }
         }
 
-        memset(usb, 0, sizeof(usb));
+        memset(usb, 0, sizeof(*usb));
         usb->init_flags = flags;
 
         /* Initialize the USB state structure */
diff --git a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
index 3605c5da822d..6fc77428e83a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
@@ -157,8 +157,8 @@ _func_enter_;
 
         *frlen = *frlen + (len + 2);
 
-        return pbuf + len + 2;
 _func_exit_;
+        return pbuf + len + 2;
 }
 
 inline u8 *rtw_set_ie_ch_switch (u8 *buf, u32 *buf_len, u8 ch_switch_mode,
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index 8b2ba26ba38d..4b2eb8e9b562 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -1827,13 +1827,13 @@ unsigned int OnAction_back(struct adapter *padapter, union recv_frame *precv_fra
 
 #ifdef CONFIG_88EU_P2P
 
-static int get_reg_classes_full_count(struct p2p_channels channel_list)
+static int get_reg_classes_full_count(struct p2p_channels *channel_list)
 {
         int cnt = 0;
         int i;
 
-        for (i = 0; i < channel_list.reg_classes; i++) {
-                cnt += channel_list.reg_class[i].channels;
+        for (i = 0; i < channel_list->reg_classes; i++) {
+                cnt += channel_list->reg_class[i].channels;
         }
 
         return cnt;
@@ -2065,7 +2065,7 @@ void issue_p2p_GO_request(struct adapter *padapter, u8 *raddr)
         /*  + number of channels in all classes */
         len_channellist_attr = 3
            + (1 + 1) * (u16)(pmlmeext->channel_list.reg_classes)
-           + get_reg_classes_full_count(pmlmeext->channel_list);
+           + get_reg_classes_full_count(&pmlmeext->channel_list);
 
         *(__le16 *)(p2pie + p2pielen) = cpu_to_le16(len_channellist_attr);
         p2pielen += 2;
@@ -2437,7 +2437,7 @@ static void issue_p2p_GO_response(struct adapter *padapter, u8 *raddr, u8 *frame
         /*  + number of channels in all classes */
         len_channellist_attr = 3
            + (1 + 1) * (u16)pmlmeext->channel_list.reg_classes
-           + get_reg_classes_full_count(pmlmeext->channel_list);
+           + get_reg_classes_full_count(&pmlmeext->channel_list);
 
         *(__le16 *)(p2pie + p2pielen) = cpu_to_le16(len_channellist_attr);
 
@@ -2859,7 +2859,7 @@ void issue_p2p_invitation_request(struct adapter *padapter, u8 *raddr)
         /*  + number of channels in all classes */
         len_channellist_attr = 3
            + (1 + 1) * (u16)pmlmeext->channel_list.reg_classes
-           + get_reg_classes_full_count(pmlmeext->channel_list);
+           + get_reg_classes_full_count(&pmlmeext->channel_list);
 
         *(__le16 *)(p2pie + p2pielen) = cpu_to_le16(len_channellist_attr);
 
@@ -3120,7 +3120,7 @@ void issue_p2p_invitation_response(struct adapter *padapter, u8 *raddr, u8 dialo
                 /*  + number of channels in all classes */
                 len_channellist_attr = 3
                         + (1 + 1) * (u16)pmlmeext->channel_list.reg_classes
-                        + get_reg_classes_full_count(pmlmeext->channel_list);
+                        + get_reg_classes_full_count(&pmlmeext->channel_list);
 
                 *(__le16 *)(p2pie + p2pielen) = cpu_to_le16(len_channellist_attr);
                 p2pielen += 2;
diff --git a/drivers/staging/rtl8188eu/core/rtw_mp.c b/drivers/staging/rtl8188eu/core/rtw_mp.c
index c7ff2e4d1f23..9832dcbbd07f 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mp.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mp.c
@@ -907,7 +907,7 @@ u32 mp_query_psd(struct adapter *pAdapter, u8 *data)
                 sscanf(data, "pts =%d, start =%d, stop =%d", &psd_pts, &psd_start, &psd_stop);
         }
 
-        _rtw_memset(data, '\0', sizeof(data));
+        _rtw_memset(data, '\0', sizeof(*data));
 
         i = psd_start;
         while (i < psd_stop) {
diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
index 013ea487e7ac..8018edd3d42e 100644
--- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
@@ -631,7 +631,7 @@ void WMMOnAssocRsp(struct adapter *padapter)
         inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3;
 
         if (pregpriv->wifi_spec == 1) {
-                u32     j, tmp, change_inx;
+                u32     j, tmp, change_inx = false;
 
                 /* entry indx: 0->vo, 1->vi, 2->be, 3->bk. */
                 for (i = 0; i < 4; i++) {
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c b/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c
index 9c2e7a20c09e..ec0028d4e61a 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c
@@ -57,7 +57,7 @@ static void Init_ODM_ComInfo_88E(struct adapter *Adapter)
         u8 cut_ver, fab_ver;
 
         /*  Init Value */
-        _rtw_memset(dm_odm, 0, sizeof(dm_odm));
+        _rtw_memset(dm_odm, 0, sizeof(*dm_odm));
 
         dm_odm->Adapter = Adapter;
 
diff --git a/drivers/staging/rtl8188eu/include/odm.h b/drivers/staging/rtl8188eu/include/odm.h
index 2bfe72841921..4787bacdcad8 100644
--- a/drivers/staging/rtl8188eu/include/odm.h
+++ b/drivers/staging/rtl8188eu/include/odm.h
@@ -1010,7 +1010,7 @@ enum dm_dig_op {
 #define         DM_false_ALARM_THRESH_LOW       400
 #define         DM_false_ALARM_THRESH_HIGH      1000
 
-#define         DM_DIG_MAX_NIC                  0x3e
+#define         DM_DIG_MAX_NIC                  0x4e
 #define         DM_DIG_MIN_NIC                  0x1e /* 0x22/0x1c */
 
 #define         DM_DIG_MAX_AP                   0x32
diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
index 52b280165a92..555c801d2ded 100644
--- a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
+++ b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
@@ -188,7 +188,7 @@ enum ChannelPlan {
 
 struct txpowerinfo24g {
         u8 IndexCCK_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G];
-        u8 IndexBW40_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G-1];
+        u8 IndexBW40_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G];
         /* If only one tx, only BW20 and OFDM are used. */
         s8 CCK_Diff[MAX_RF_PATH][MAX_TX_COUNT];
         s8 OFDM_Diff[MAX_RF_PATH][MAX_TX_COUNT];
diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
index a96b018e5e6a..853ab80a2b86 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
@@ -870,6 +870,7 @@ static struct fwevent wlanevents[] = {
         {0, NULL},
         {0, NULL},
         {0, &rtw_cpwm_event_callback},
+        {0, NULL},
 };
 
 #endif/* _RTL_MLME_EXT_C_ */
diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index cd4100fb3645..95953ebc0279 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -6973,7 +6973,7 @@ static int rtw_mp_ctx(struct net_device *dev,
         stop = strncmp(extra, "stop", 4);
         sscanf(extra, "count =%d, pkt", &count);
 
-        _rtw_memset(extra, '\0', sizeof(extra));
+        _rtw_memset(extra, '\0', sizeof(*extra));
 
         if (stop == 0) {
                 bStartTest = 0; /*  To set Stop */
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index d3078d200e50..9ca3180ebaa0 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -54,6 +54,7 @@ static struct usb_device_id rtw_usb_id_tbl[] = {
         /*=== Customer ID ===*/
         /****** 8188EUS ********/
         {USB_DEVICE(0x8179, 0x07B8)}, /* Abocom - Abocom */
+        {USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */
         {}      /* Terminating entry */
 };
 
diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.c b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
index 5bc361b16d4c..56144014b7c9 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.c
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
@@ -37,6 +37,8 @@ rt_status SendTxCommandPacket(struct net_device *dev, void *pData, u32 DataLen)
         /* Get TCB and local buffer from common pool.
            (It is shared by CmdQ, MgntQ, and USB coalesce DataQ) */
         skb  = dev_alloc_skb(USB_HWDESC_HEADER_LEN + DataLen + 4);
+        if (!skb)
+                return RT_STATUS_FAILURE;
         memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
         tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
         tcb_desc->queue_index = TXCMD_QUEUE;
diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index dbf11ecb794e..19d3cf451b88 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -172,8 +172,8 @@ static u16 swGetOFDMControlRate(struct vnt_private *pDevice, u16 wRateIdx)
         if (!CARDbIsOFDMinBasicRate(pDevice)) {
                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
                         "swGetOFDMControlRate:(NO OFDM) %d\n", wRateIdx);
-        if (wRateIdx > RATE_24M)
-                wRateIdx = RATE_24M;
+                if (wRateIdx > RATE_24M)
+                        wRateIdx = RATE_24M;
                 return wRateIdx;
         }
 
diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index d0cf7d8a20e5..8872e0f84f40 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -1634,6 +1634,9 @@ int iwctl_siwencodeext(struct net_device *dev, struct iw_request_info *info,
         if (pMgmt == NULL)
                 return -EFAULT;
 
+        if (!(pDevice->flags & DEVICE_FLAGS_OPENED))
+                return -ENODEV;
+
         buf = kzalloc(sizeof(struct viawget_wpa_param), GFP_KERNEL);
         if (buf == NULL)
                 return -ENOMEM;
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 536971786ae8..6f9d28182445 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -1098,6 +1098,8 @@ static int device_close(struct net_device *dev)
     memset(pMgmt->abyCurrBSSID, 0, 6);
     pMgmt->eCurrState = WMAC_STATE_IDLE;
 
+        pDevice->flags &= ~DEVICE_FLAGS_OPENED;
+
     device_free_tx_bufs(pDevice);
     device_free_rx_bufs(pDevice);
     device_free_int_bufs(pDevice);
@@ -1109,7 +1111,6 @@ static int device_close(struct net_device *dev)
     usb_free_urb(pDevice->pInterruptURB);
 
     BSSvClearNodeDBTable(pDevice, 0);
-    pDevice->flags &=(~DEVICE_FLAGS_OPENED);
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "device_close2 \n");
 
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index fb743a8811bb..14f3e852215d 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -148,6 +148,8 @@ static void *s_vGetFreeContext(struct vnt_private *pDevice)
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GetFreeContext()\n");
 
     for (ii = 0; ii < pDevice->cbTD; ii++) {
+        if (!pDevice->apTD[ii])
+                return NULL;
         pContext = pDevice->apTD[ii];
         if (pContext->bBoolInUse == false) {
             pContext->bBoolInUse = true;
diff --git a/drivers/staging/xillybus/xillybus_core.c b/drivers/staging/xillybus/xillybus_core.c
index efc56987a60b..7db6f03a0054 100644
--- a/drivers/staging/xillybus/xillybus_core.c
+++ b/drivers/staging/xillybus/xillybus_core.c
@@ -2054,7 +2054,7 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint,
                                        NULL,
                                        MKDEV(major, i),
                                        NULL,
-                                       devname);
+                                       "%s", devname);
 
                 if (IS_ERR(device)) {
                         pr_warn("xillybus: Failed to create %s "
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index 91d94b564433..2c4ed52ca849 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -981,4 +981,3 @@ MODULE_PARM_DESC(num_devices, "Number of zram devices");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_AUTHOR("Nitin Gupta <ngupta@vflare.org>");
 MODULE_DESCRIPTION("Compressed RAM Block Device");
-MODULE_ALIAS("devname:zram");
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index c9a9ddd1d0bc..01bf5eb4f238 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1758,8 +1758,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
                 canon_change = (old->c_lflag ^ tty->termios.c_lflag) & ICANON;
         if (canon_change) {
                 bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
-                ldata->line_start = 0;
-                ldata->canon_head = ldata->read_tail;
+                ldata->line_start = ldata->canon_head = ldata->read_tail;
                 ldata->erasing = 0;
                 ldata->lnext = 0;
         }
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 52379e56a31e..44077c0b7670 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -667,30 +667,21 @@ static int pop_tx_x(struct eg20t_port *priv, unsigned char *buf)
 
 static int dma_push_rx(struct eg20t_port *priv, int size)
 {
-        struct tty_struct *tty;
         int room;
         struct uart_port *port = &priv->port;
         struct tty_port *tport = &port->state->port;
 
-        port = &priv->port;
-        tty = tty_port_tty_get(tport);
-        if (!tty) {
-                dev_dbg(priv->port.dev, "%s:tty is busy now", __func__);
-                return 0;
-        }
-
         room = tty_buffer_request_room(tport, size);
 
         if (room < size)
                 dev_warn(port->dev, "Rx overrun: dropping %u bytes\n",
                          size - room);
         if (!room)
-                return room;
+                return 0;
 
         tty_insert_flip_string(tport, sg_virt(&priv->sg_rx), size);
 
         port->icount.rx += room;
-        tty_kref_put(tty);
 
         return room;
 }
@@ -1098,6 +1089,8 @@ static void pch_uart_err_ir(struct eg20t_port *priv, unsigned int lsr)
         if (tty == NULL) {
                 for (i = 0; error_msg[i] != NULL; i++)
                         dev_err(&priv->pdev->dev, error_msg[i]);
+        } else {
+                tty_kref_put(tty);
         }
 }
 
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index d0d972f7e43e..0489a2bdcdf9 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -732,7 +732,7 @@ static irqreturn_t tegra_uart_isr(int irq, void *data)
 static void tegra_uart_stop_rx(struct uart_port *u)
 {
         struct tegra_uart_port *tup = to_tegra_uport(u);
-        struct tty_struct *tty = tty_port_tty_get(&tup->uport.state->port);
+        struct tty_struct *tty;
         struct tty_port *port = &u->state->port;
         struct dma_tx_state state;
         unsigned long ier;
@@ -744,6 +744,8 @@ static void tegra_uart_stop_rx(struct uart_port *u)
         if (!tup->rx_in_progress)
                 return;
 
+        tty = tty_port_tty_get(&tup->uport.state->port);
+
         tegra_uart_wait_sym_time(tup, 1); /* wait a character interval */
 
         ier = tup->ier_shadow;
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 03ba081c5772..6fd60fece6b4 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -1201,6 +1201,9 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
                 }
                 return 0;
         case TCFLSH:
+                retval = tty_check_change(tty);
+                if (retval)
+                        return retval;
                 return __tty_perform_flush(tty, arg);
         default:
                 /* Try the mode commands */
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 4a851e15e58c..77b47d82c9a6 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -1,6 +1,6 @@
 config USB_CHIPIDEA
         tristate "ChipIdea Highspeed Dual Role Controller"
-        depends on (USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)
+        depends on ((USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)) && HAS_DMA
         help
           Say Y here if your system has a dual role high speed USB
           controller based on ChipIdea silicon IP. Currently, only the
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 74d998d9b45b..be822a2c1776 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -131,7 +131,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
                 if (ret) {
                         dev_err(&pdev->dev, "usbmisc init failed, ret=%d\n",
                                         ret);
-                        goto err_clk;
+                        goto err_phy;
                 }
         }
 
@@ -143,7 +143,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
                 dev_err(&pdev->dev,
                         "Can't register ci_hdrc platform device, err=%d\n",
                         ret);
-                goto err_clk;
+                goto err_phy;
         }
 
         if (data->usbmisc_data) {
@@ -164,6 +164,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 
 disable_device:
         ci_hdrc_remove_device(data->ci_pdev);
+err_phy:
+        if (data->phy)
+                usb_phy_shutdown(data->phy);
 err_clk:
         clk_disable_unprepare(data->clk);
         return ret;
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 94626409559a..23763dcec069 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -605,6 +605,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
         dbg_remove_files(ci);
         free_irq(ci->irq, ci);
         ci_role_destroy(ci);
+        kfree(ci->hw_bank.regmap);
 
         return 0;
 }
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 6b4c2f2eb946..9333083dd111 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1600,6 +1600,8 @@ static void destroy_eps(struct ci_hdrc *ci)
         for (i = 0; i < ci->hw_ep_max; i++) {
                 struct ci_hw_ep *hwep = &ci->ci_hw_ep[i];
 
+                if (hwep->pending_td)
+                        free_pending_td(hwep);
                 dma_pool_free(ci->qh_pool, hwep->qh.ptr, hwep->qh.dma);
         }
 }
@@ -1667,13 +1669,13 @@ static int ci_udc_stop(struct usb_gadget *gadget,
                 if (ci->platdata->notify_event)
                         ci->platdata->notify_event(ci,
                         CI_HDRC_CONTROLLER_STOPPED_EVENT);
-                ci->driver = NULL;
                 spin_unlock_irqrestore(&ci->lock, flags);
                 _gadget_stop_activity(&ci->gadget);
                 spin_lock_irqsave(&ci->lock, flags);
                 pm_runtime_put(&ci->gadget.dev);
         }
 
+        ci->driver = NULL;
         spin_unlock_irqrestore(&ci->lock, flags);
 
         return 0;
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 737e3c19967b..71dc5d768fa5 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -742,6 +742,22 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
                 if ((index & ~USB_DIR_IN) == 0)
                         return 0;
                 ret = findintfep(ps->dev, index);
+                if (ret < 0) {
+                        /*
+                         * Some not fully compliant Win apps seem to get
+                         * index wrong and have the endpoint number here
+                         * rather than the endpoint address (with the
+                         * correct direction). Win does let this through,
+                         * so we'll not reject it here but leave it to
+                         * the device to not break KVM. But we warn.
+                         */
+                        ret = findintfep(ps->dev, index ^ 0x80);
+                        if (ret >= 0)
+                                dev_info(&ps->dev->dev,
+                                        "%s: process %i (%s) requesting ep %02x but needs %02x\n",
+                                        __func__, task_pid_nr(current),
+                                        current->comm, index, index ^ 0x80);
+                }
                 if (ret >= 0)
                         ret = checkintf(ps, ret);
                 break;
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index dde4c83516a1..e6b682c6c236 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3426,6 +3426,9 @@ static int usb_req_set_sel(struct usb_device *udev, enum usb3_link_state state)
         unsigned long long u2_pel;
         int ret;
 
+        if (udev->state != USB_STATE_CONFIGURED)
+                return 0;
+
         /* Convert SEL and PEL stored in ns to us */
         u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000);
         u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000);
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index b870872e020f..70fc43027a5c 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -1,7 +1,6 @@
 config USB_DWC3
         tristate "DesignWare USB3 DRD Core Support"
         depends on (USB || USB_GADGET) && HAS_DMA
-        depends on EXTCON
         select USB_XHCI_PLATFORM if USB_SUPPORT && USB_XHCI_HCD
         help
           Say Y or M here if your system has a Dual Role SuperSpeed
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 9b138129e856..2e252aae51ca 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -28,6 +28,8 @@
 /* FIXME define these in <linux/pci_ids.h> */
 #define PCI_VENDOR_ID_SYNOPSYS          0x16c3
 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
+#define PCI_DEVICE_ID_INTEL_BYT         0x0f37
+#define PCI_DEVICE_ID_INTEL_MRFLD       0x119e
 
 struct dwc3_pci {
         struct device           *dev;
@@ -187,6 +189,8 @@ static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
                 PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
                                 PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
         },
+        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
+        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
         {  }    /* Terminating Entry */
 };
 MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index f168eaebdef8..5452c0fce360 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2611,15 +2611,13 @@ int dwc3_gadget_init(struct dwc3 *dwc)
         ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget);
         if (ret) {
                 dev_err(dwc->dev, "failed to register udc\n");
-                goto err5;
+                goto err4;
         }
 
         return 0;
 
-err5:
-        dwc3_gadget_free_endpoints(dwc);
-
 err4:
+        dwc3_gadget_free_endpoints(dwc);
         dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE,
                         dwc->ep0_bounce, dwc->ep0_bounce_addr);
 
diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c
index 5a5acf22c694..e126b6b248e6 100644
--- a/drivers/usb/gadget/cdc2.c
+++ b/drivers/usb/gadget/cdc2.c
@@ -113,12 +113,6 @@ static int __init cdc_do_config(struct usb_configuration *c)
                 c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
         }
 
-        fi_ecm = usb_get_function_instance("ecm");
-        if (IS_ERR(fi_ecm)) {
-                status = PTR_ERR(fi_ecm);
-                goto err_func_ecm;
-        }
-
         f_ecm = usb_get_function(fi_ecm);
         if (IS_ERR(f_ecm)) {
                 status = PTR_ERR(f_ecm);
@@ -129,35 +123,24 @@ static int __init cdc_do_config(struct usb_configuration *c)
         if (status)
                 goto err_add_ecm;
 
-        fi_serial = usb_get_function_instance("acm");
-        if (IS_ERR(fi_serial)) {
-                status = PTR_ERR(fi_serial);
-                goto err_get_acm;
-        }
-
         f_acm = usb_get_function(fi_serial);
         if (IS_ERR(f_acm)) {
                 status = PTR_ERR(f_acm);
-                goto err_func_acm;
+                goto err_get_acm;
         }
 
         status = usb_add_function(c, f_acm);
         if (status)
                 goto err_add_acm;
-
         return 0;
 
 err_add_acm:
         usb_put_function(f_acm);
-err_func_acm:
-        usb_put_function_instance(fi_serial);
 err_get_acm:
         usb_remove_function(c, f_ecm);
 err_add_ecm:
         usb_put_function(f_ecm);
 err_get_ecm:
-        usb_put_function_instance(fi_ecm);
-err_func_ecm:
         return status;
 }
 
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 06ecd08fd57a..b8a2376971a4 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -923,8 +923,9 @@ static int dummy_udc_stop(struct usb_gadget *g,
         struct dummy_hcd        *dum_hcd = gadget_to_dummy_hcd(g);
         struct dummy            *dum = dum_hcd->dum;
 
-        dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n",
-                        driver->driver.name);
+        if (driver)
+                dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n",
+                                driver->driver.name);
 
         dum->driver = NULL;
 
@@ -1000,8 +1001,8 @@ static int dummy_udc_remove(struct platform_device *pdev)
 {
         struct dummy    *dum = platform_get_drvdata(pdev);
 
-        usb_del_gadget_udc(&dum->gadget);
         device_remove_file(&dum->gadget.dev, &dev_attr_function);
+        usb_del_gadget_udc(&dum->gadget);
         return 0;
 }
 
diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c
index edab45da3741..8d9e6f7e8f1a 100644
--- a/drivers/usb/gadget/f_ecm.c
+++ b/drivers/usb/gadget/f_ecm.c
@@ -995,7 +995,7 @@ static void ecm_unbind(struct usb_configuration *c, struct usb_function *f)
         usb_ep_free_request(ecm->notify, ecm->notify_req);
 }
 
-struct usb_function *ecm_alloc(struct usb_function_instance *fi)
+static struct usb_function *ecm_alloc(struct usb_function_instance *fi)
 {
         struct f_ecm    *ecm;
         struct f_ecm_opts *opts;
diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c
index d00392d879db..d61c11d765d0 100644
--- a/drivers/usb/gadget/f_eem.c
+++ b/drivers/usb/gadget/f_eem.c
@@ -624,7 +624,7 @@ static void eem_unbind(struct usb_configuration *c, struct usb_function *f)
         usb_free_all_descriptors(f);
 }
 
-struct usb_function *eem_alloc(struct usb_function_instance *fi)
+static struct usb_function *eem_alloc(struct usb_function_instance *fi)
 {
         struct f_eem    *eem;
         struct f_eem_opts *opts;
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 1a66c5baa0d1..0658908d8968 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -1034,37 +1034,19 @@ struct ffs_sb_fill_data {
         struct ffs_file_perms perms;
         umode_t root_mode;
         const char *dev_name;
-        union {
-                /* set by ffs_fs_mount(), read by ffs_sb_fill() */
-                void *private_data;
-                /* set by ffs_sb_fill(), read by ffs_fs_mount */
-                struct ffs_data *ffs_data;
-        };
+        struct ffs_data *ffs_data;
 };
 
 static int ffs_sb_fill(struct super_block *sb, void *_data, int silent)
 {
         struct ffs_sb_fill_data *data = _data;
         struct inode    *inode;
-        struct ffs_data *ffs;
+        struct ffs_data *ffs = data->ffs_data;
 
         ENTER();
 
-        /* Initialise data */
-        ffs = ffs_data_new();
-        if (unlikely(!ffs))
-                goto Enomem;
-
         ffs->sb              = sb;
-        ffs->dev_name        = kstrdup(data->dev_name, GFP_KERNEL);
-        if (unlikely(!ffs->dev_name))
-                goto Enomem;
-        ffs->file_perms      = data->perms;
-        ffs->private_data    = data->private_data;
-
-        /* used by the caller of this function */
-        data->ffs_data       = ffs;
-
+        data->ffs_data       = NULL;
         sb->s_fs_info        = ffs;
         sb->s_blocksize      = PAGE_CACHE_SIZE;
         sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
@@ -1080,17 +1062,14 @@ static int ffs_sb_fill(struct super_block *sb, void *_data, int silent)
                                   &data->perms);
         sb->s_root = d_make_root(inode);
         if (unlikely(!sb->s_root))
-                goto Enomem;
+                return -ENOMEM;
 
         /* EP0 file */
         if (unlikely(!ffs_sb_create_file(sb, "ep0", ffs,
                                          &ffs_ep0_operations, NULL)))
-                goto Enomem;
+                return -ENOMEM;
 
         return 0;
-
-Enomem:
-        return -ENOMEM;
 }
 
 static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
@@ -1193,6 +1172,7 @@ ffs_fs_mount(struct file_system_type *t, int flags,
         struct dentry *rv;
         int ret;
         void *ffs_dev;
+        struct ffs_data *ffs;
 
         ENTER();
 
@@ -1200,18 +1180,30 @@ ffs_fs_mount(struct file_system_type *t, int flags,
         if (unlikely(ret < 0))
                 return ERR_PTR(ret);
 
+        ffs = ffs_data_new();
+        if (unlikely(!ffs))
+                return ERR_PTR(-ENOMEM);
+        ffs->file_perms = data.perms;
+
+        ffs->dev_name = kstrdup(dev_name, GFP_KERNEL);
+        if (unlikely(!ffs->dev_name)) {
+                ffs_data_put(ffs);
+                return ERR_PTR(-ENOMEM);
+        }
+
         ffs_dev = functionfs_acquire_dev_callback(dev_name);
-        if (IS_ERR(ffs_dev))
-                return ffs_dev;
+        if (IS_ERR(ffs_dev)) {
+                ffs_data_put(ffs);
+                return ERR_CAST(ffs_dev);
+        }
+        ffs->private_data = ffs_dev;
+        data.ffs_data = ffs;
 
-        data.dev_name = dev_name;
-        data.private_data = ffs_dev;
         rv = mount_nodev(t, flags, &data, ffs_sb_fill);
-
-        /* data.ffs_data is set by ffs_sb_fill */
-        if (IS_ERR(rv))
+        if (IS_ERR(rv) && data.ffs_data) {
                 functionfs_release_dev_callback(data.ffs_data);
-
+                ffs_data_put(data.ffs_data);
+        }
         return rv;
 }
 
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 313b835eedfd..a01d7d38c016 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2260,10 +2260,12 @@ reset:
                 /* Disable the endpoints */
                 if (fsg->bulk_in_enabled) {
                         usb_ep_disable(fsg->bulk_in);
+                        fsg->bulk_in->driver_data = NULL;
                         fsg->bulk_in_enabled = 0;
                 }
                 if (fsg->bulk_out_enabled) {
                         usb_ep_disable(fsg->bulk_out);
+                        fsg->bulk_out->driver_data = NULL;
                         fsg->bulk_out_enabled = 0;
                 }
 
diff --git a/drivers/usb/gadget/fotg210-udc.c b/drivers/usb/gadget/fotg210-udc.c
index 32db2eee2d87..bbbfd1948778 100644
--- a/drivers/usb/gadget/fotg210-udc.c
+++ b/drivers/usb/gadget/fotg210-udc.c
@@ -1214,6 +1214,6 @@ static struct platform_driver fotg210_driver = {
 
 module_platform_driver(fotg210_driver);
 
-MODULE_AUTHOR("Yuan-Hsin Chen <yhchen@faraday-tech.com>");
+MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang <john453@faraday-tech.com>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index f1dd6daabe21..b278abe52453 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -22,7 +22,7 @@
 
 MODULE_DESCRIPTION("FUSB300  USB gadget driver");
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Yuan Hsin Chen <yhchen@faraday-tech.com>");
+MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang <john453@faraday-tech.com>");
 MODULE_ALIAS("platform:fusb300_udc");
 
 #define DRIVER_VERSION  "20 October 2010"
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 2a1ebefd8f9e..23393254a8a3 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -179,7 +179,7 @@ err_conf:
         return ret;
 }
 
-static int rndis_config_register(struct usb_composite_dev *cdev)
+static __ref int rndis_config_register(struct usb_composite_dev *cdev)
 {
         static struct usb_configuration config = {
                 .bConfigurationValue    = MULTI_RNDIS_CONFIG_NUM,
@@ -194,7 +194,7 @@ static int rndis_config_register(struct usb_composite_dev *cdev)
 
 #else
 
-static int rndis_config_register(struct usb_composite_dev *cdev)
+static __ref int rndis_config_register(struct usb_composite_dev *cdev)
 {
         return 0;
 }
@@ -241,7 +241,7 @@ err_conf:
         return ret;
 }
 
-static int cdc_config_register(struct usb_composite_dev *cdev)
+static __ref int cdc_config_register(struct usb_composite_dev *cdev)
 {
         static struct usb_configuration config = {
                 .bConfigurationValue    = MULTI_CDC_CONFIG_NUM,
@@ -256,7 +256,7 @@ static int cdc_config_register(struct usb_composite_dev *cdev)
 
 #else
 
-static int cdc_config_register(struct usb_composite_dev *cdev)
+static __ref int cdc_config_register(struct usb_composite_dev *cdev)
 {
         return 0;
 }
diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c
index bbb6e98c4384..561b30efb8ee 100644
--- a/drivers/usb/gadget/mv_u3d_core.c
+++ b/drivers/usb/gadget/mv_u3d_core.c
@@ -645,6 +645,7 @@ static int  mv_u3d_ep_disable(struct usb_ep *_ep)
         struct mv_u3d_ep *ep;
         struct mv_u3d_ep_context *ep_context;
         u32 epxcr, direction;
+        unsigned long flags;
 
         if (!_ep)
                 return -EINVAL;
@@ -661,7 +662,9 @@ static int  mv_u3d_ep_disable(struct usb_ep *_ep)
         direction = mv_u3d_ep_dir(ep);
 
         /* nuke all pending requests (does flush) */
+        spin_lock_irqsave(&u3d->lock, flags);
         mv_u3d_nuke(ep, -ESHUTDOWN);
+        spin_unlock_irqrestore(&u3d->lock, flags);
 
         /* Disable the endpoint for Rx or Tx and reset the endpoint type */
         if (direction == MV_U3D_EP_DIR_OUT) {
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index d69b36a99dbc..6bddf1aa2347 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2475,8 +2475,6 @@ irq_retry:
         if (gintsts & GINTSTS_ErlySusp) {
                 dev_dbg(hsotg->dev, "GINTSTS_ErlySusp\n");
                 writel(GINTSTS_ErlySusp, hsotg->regs + GINTSTS);
-
-                s3c_hsotg_disconnect(hsotg);
         }
 
         /*
@@ -2962,9 +2960,6 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget,
         if (!hsotg)
                 return -ENODEV;
 
-        if (!driver || driver != hsotg->driver || !driver->unbind)
-                return -EINVAL;
-
         /* all endpoints should be shutdown */
         for (ep = 0; ep < hsotg->num_of_eps; ep++)
                 s3c_hsotg_ep_disable(&hsotg->eps[ep].ep);
@@ -2972,15 +2967,15 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget,
         spin_lock_irqsave(&hsotg->lock, flags);
 
         s3c_hsotg_phy_disable(hsotg);
-        regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
 
-        hsotg->driver = NULL;
+        if (!driver)
+                hsotg->driver = NULL;
+
         hsotg->gadget.speed = USB_SPEED_UNKNOWN;
 
         spin_unlock_irqrestore(&hsotg->lock, flags);
 
-        dev_info(hsotg->dev, "unregistered gadget driver '%s'\n",
-                 driver->driver.name);
+        regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
 
         return 0;
 }
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 947b009009f1..f2407b2e8a99 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -130,7 +130,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver,
         }
 
         /* Enable USB controller, 83xx or 8536 */
-        if (pdata->have_sysif_regs)
+        if (pdata->have_sysif_regs && pdata->controller_ver < FSL_USB_VER_1_6)
                 setbits32(hcd->regs + FSL_SOC_USB_CTRL, 0x4);
 
         /* Don't need to set host mode here. It will be done by tdi_reset() */
@@ -232,15 +232,9 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
         case FSL_USB2_PHY_ULPI:
                 if (pdata->have_sysif_regs && pdata->controller_ver) {
                         /* controller version 1.6 or above */
+                        clrbits32(non_ehci + FSL_SOC_USB_CTRL, UTMI_PHY_EN);
                         setbits32(non_ehci + FSL_SOC_USB_CTRL,
-                                        ULPI_PHY_CLK_SEL);
-                        /*
-                         * Due to controller issue of PHY_CLK_VALID in ULPI
-                         * mode, we set USB_CTRL_USB_EN before checking
-                         * PHY_CLK_VALID, otherwise PHY_CLK_VALID doesn't work.
-                         */
-                        clrsetbits_be32(non_ehci + FSL_SOC_USB_CTRL,
-                                        UTMI_PHY_EN, USB_CTRL_USB_EN);
+                                ULPI_PHY_CLK_SEL | USB_CTRL_USB_EN);
                 }
                 portsc |= PORT_PTS_ULPI;
                 break;
@@ -270,8 +264,9 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
         if (pdata->have_sysif_regs && pdata->controller_ver &&
             (phy_mode == FSL_USB2_PHY_ULPI)) {
                 /* check PHY_CLK_VALID to get phy clk valid */
-                if (!spin_event_timeout(in_be32(non_ehci + FSL_SOC_USB_CTRL) &
-                                PHY_CLK_VALID, FSL_USB_PHY_CLK_TIMEOUT, 0)) {
+                if (!(spin_event_timeout(in_be32(non_ehci + FSL_SOC_USB_CTRL) &
+                                PHY_CLK_VALID, FSL_USB_PHY_CLK_TIMEOUT, 0) ||
+                                in_be32(non_ehci + FSL_SOC_USB_PRICTRL))) {
                         printk(KERN_WARNING "fsl-ehci: USB PHY clock invalid\n");
                         return -EINVAL;
                 }
@@ -669,7 +664,7 @@ static const struct hc_driver ehci_fsl_hc_driver = {
          * generic hardware linkage
          */
         .irq = ehci_irq,
-        .flags = HCD_USB2 | HCD_MEMORY | HCD_BH,
+        .flags = HCD_USB2 | HCD_MEMORY,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c
index b52a66ce92e8..83ab51af250f 100644
--- a/drivers/usb/host/ehci-grlib.c
+++ b/drivers/usb/host/ehci-grlib.c
@@ -43,7 +43,7 @@ static const struct hc_driver ehci_grlib_hc_driver = {
          * generic hardware linkage
          */
         .irq                    = ehci_irq,
-        .flags                  = HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags                  = HCD_MEMORY | HCD_USB2,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 5d6022f30ebe..86ab9fd9fe9e 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1158,7 +1158,7 @@ static const struct hc_driver ehci_hc_driver = {
          * generic hardware linkage
          */
         .irq =                  ehci_irq,
-        .flags =                HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags =                HCD_MEMORY | HCD_USB2,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index 417c10da9450..35cdbd88bbbe 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -96,7 +96,7 @@ static const struct hc_driver mv_ehci_hc_driver = {
          * generic hardware linkage
          */
         .irq = ehci_irq,
-        .flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags = HCD_MEMORY | HCD_USB2,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c
index ab0397e4d8f3..45cc00158412 100644
--- a/drivers/usb/host/ehci-octeon.c
+++ b/drivers/usb/host/ehci-octeon.c
@@ -51,7 +51,7 @@ static const struct hc_driver ehci_octeon_hc_driver = {
          * generic hardware linkage
          */
         .irq                    = ehci_irq,
-        .flags                  = HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags                  = HCD_MEMORY | HCD_USB2,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 6bd299e61f58..854c2ec7b699 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -361,7 +361,7 @@ static struct pci_driver ehci_pci_driver = {
         .remove =       usb_hcd_pci_remove,
         .shutdown =     usb_hcd_pci_shutdown,
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
         .driver =       {
                 .pm =   &usb_hcd_pci_pm_ops
         },
diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c
index 893b707f0000..601e208bd782 100644
--- a/drivers/usb/host/ehci-pmcmsp.c
+++ b/drivers/usb/host/ehci-pmcmsp.c
@@ -286,7 +286,7 @@ static const struct hc_driver ehci_msp_hc_driver = {
 #else
         .irq =                  ehci_irq,
 #endif
-        .flags =                HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags =                HCD_MEMORY | HCD_USB2,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 6cc5567bf9c8..932293fa32de 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -28,7 +28,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = {
          * generic hardware linkage
          */
         .irq                    = ehci_irq,
-        .flags                  = HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags                  = HCD_MEMORY | HCD_USB2,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index 8188542ba17e..fd983771b025 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -71,7 +71,7 @@ static const struct hc_driver ps3_ehci_hc_driver = {
         .product_desc           = "PS3 EHCI Host Controller",
         .hcd_priv_size          = sizeof(struct ehci_hcd),
         .irq                    = ehci_irq,
-        .flags                  = HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags                  = HCD_MEMORY | HCD_USB2,
         .reset                  = ps3_ehci_hc_reset,
         .start                  = ehci_run,
         .stop                   = ehci_stop,
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index e321804c3475..a7f776a13eb1 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -247,6 +247,8 @@ static int qtd_copy_status (
 
 static void
 ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status)
+__releases(ehci->lock)
+__acquires(ehci->lock)
 {
         if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
                 /* ... update hc-wide periodic stats */
@@ -272,8 +274,11 @@ ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status)
                 urb->actual_length, urb->transfer_buffer_length);
 #endif
 
+        /* complete() can reenter this HCD */
         usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
+        spin_unlock (&ehci->lock);
         usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status);
+        spin_lock (&ehci->lock);
 }
 
 static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh);
diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c
index 8a734498079b..b2de52d39614 100644
--- a/drivers/usb/host/ehci-sead3.c
+++ b/drivers/usb/host/ehci-sead3.c
@@ -55,7 +55,7 @@ const struct hc_driver ehci_sead3_hc_driver = {
          * generic hardware linkage
          */
         .irq                    = ehci_irq,
-        .flags                  = HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags                  = HCD_MEMORY | HCD_USB2,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c
index dc899eb2b861..93e59a13bc1f 100644
--- a/drivers/usb/host/ehci-sh.c
+++ b/drivers/usb/host/ehci-sh.c
@@ -36,7 +36,7 @@ static const struct hc_driver ehci_sh_hc_driver = {
          * generic hardware linkage
          */
         .irq                            = ehci_irq,
-        .flags                          = HCD_USB2 | HCD_MEMORY | HCD_BH,
+        .flags                          = HCD_USB2 | HCD_MEMORY,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-tilegx.c b/drivers/usb/host/ehci-tilegx.c
index 67026ffbf9a8..cca4be90a864 100644
--- a/drivers/usb/host/ehci-tilegx.c
+++ b/drivers/usb/host/ehci-tilegx.c
@@ -61,7 +61,7 @@ static const struct hc_driver ehci_tilegx_hc_driver = {
          * Generic hardware linkage.
          */
         .irq                    = ehci_irq,
-        .flags                  = HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags                  = HCD_MEMORY | HCD_USB2,
 
         /*
          * Basic lifecycle operations.
diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c
index 1c370dfbee0d..59e0e24c753f 100644
--- a/drivers/usb/host/ehci-w90x900.c
+++ b/drivers/usb/host/ehci-w90x900.c
@@ -108,7 +108,7 @@ static const struct hc_driver ehci_w90x900_hc_driver = {
          * generic hardware linkage
          */
         .irq = ehci_irq,
-        .flags = HCD_USB2|HCD_MEMORY|HCD_BH,
+        .flags = HCD_USB2|HCD_MEMORY,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c
index 95979f9f4381..eba962e6ebfb 100644
--- a/drivers/usb/host/ehci-xilinx-of.c
+++ b/drivers/usb/host/ehci-xilinx-of.c
@@ -79,7 +79,7 @@ static const struct hc_driver ehci_xilinx_of_hc_driver = {
          * generic hardware linkage
          */
         .irq                    = ehci_irq,
-        .flags                  = HCD_MEMORY | HCD_USB2 | HCD_BH,
+        .flags                  = HCD_MEMORY | HCD_USB2,
 
         /*
          * basic lifecycle operations
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index 9e0020d9e4c8..abd5050a4899 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -24,7 +24,7 @@ struct fsl_usb2_dev_data {
         enum fsl_usb2_operating_modes op_mode;  /* operating mode */
 };
 
-struct fsl_usb2_dev_data dr_mode_data[] = {
+static struct fsl_usb2_dev_data dr_mode_data[] = {
         {
                 .dr_mode = "host",
                 .drivers = { "fsl-ehci", NULL, NULL, },
@@ -42,7 +42,7 @@ struct fsl_usb2_dev_data dr_mode_data[] = {
         },
 };
 
-struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np)
+static struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np)
 {
         const unsigned char *prop;
         int i;
@@ -75,7 +75,7 @@ static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
         return FSL_USB2_PHY_NONE;
 }
 
-struct platform_device *fsl_usb2_device_register(
+static struct platform_device *fsl_usb2_device_register(
                                         struct platform_device *ofdev,
                                         struct fsl_usb2_platform_data *pdata,
                                         const char *name, int id)
diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c
index 60a5de505ca1..adb01d950a16 100644
--- a/drivers/usb/host/imx21-hcd.c
+++ b/drivers/usb/host/imx21-hcd.c
@@ -824,13 +824,13 @@ static int imx21_hc_urb_enqueue_isoc(struct usb_hcd *hcd,
                         i = DIV_ROUND_UP(wrap_frame(
                                         cur_frame - urb->start_frame),
                                         urb->interval);
-                        if (urb->transfer_flags & URB_ISO_ASAP) {
+
+                        /* Treat underruns as if URB_ISO_ASAP was set */
+                        if ((urb->transfer_flags & URB_ISO_ASAP) ||
+                                        i >= urb->number_of_packets) {
                                 urb->start_frame = wrap_frame(urb->start_frame
                                                 + i * urb->interval);
                                 i = 0;
-                        } else if (i >= urb->number_of_packets) {
-                                ret = -EXDEV;
-                                goto alloc_dmem_failed;
                         }
                 }
         }
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 8f6b695af6a4..604cad1bcf9c 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -216,31 +216,26 @@ static int ohci_urb_enqueue (
                         frame &= ~(ed->interval - 1);
                         frame |= ed->branch;
                         urb->start_frame = frame;
+                        ed->last_iso = frame + ed->interval * (size - 1);
                 }
         } else if (ed->type == PIPE_ISOCHRONOUS) {
                 u16     next = ohci_frame_no(ohci) + 1;
                 u16     frame = ed->last_iso + ed->interval;
+                u16     length = ed->interval * (size - 1);
 
                 /* Behind the scheduling threshold? */
                 if (unlikely(tick_before(frame, next))) {
 
-                        /* USB_ISO_ASAP: Round up to the first available slot */
+                        /* URB_ISO_ASAP: Round up to the first available slot */
                         if (urb->transfer_flags & URB_ISO_ASAP) {
                                 frame += (next - frame + ed->interval - 1) &
                                                 -ed->interval;
 
                         /*
-                         * Not ASAP: Use the next slot in the stream.  If
-                         * the entire URB falls before the threshold, fail.
+                         * Not ASAP: Use the next slot in the stream,
+                         * no matter what.
                          */
                         } else {
-                                if (tick_before(frame + ed->interval *
-                                        (urb->number_of_packets - 1), next)) {
-                                        retval = -EXDEV;
-                                        usb_hcd_unlink_urb_from_ep(hcd, urb);
-                                        goto fail;
-                                }
-
                                 /*
                                  * Some OHCI hardware doesn't handle late TDs
                                  * correctly.  After retiring them it proceeds
@@ -251,9 +246,16 @@ static int ohci_urb_enqueue (
                                 urb_priv->td_cnt = DIV_ROUND_UP(
                                                 (u16) (next - frame),
                                                 ed->interval);
+                                if (urb_priv->td_cnt >= urb_priv->length) {
+                                        ++urb_priv->td_cnt;     /* Mark it */
+                                        ohci_dbg(ohci, "iso underrun %p (%u+%u < %u)\n",
+                                                        urb, frame, length,
+                                                        next);
+                                }
                         }
                 }
                 urb->start_frame = frame;
+                ed->last_iso = frame + length;
         }
 
         /* fill the TDs and link them to the ed; and
diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index df4a6707322d..e7f577e63624 100644
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -41,9 +41,13 @@ finish_urb(struct ohci_hcd *ohci, struct urb *urb, int status)
 __releases(ohci->lock)
 __acquires(ohci->lock)
 {
-         struct device *dev = ohci_to_hcd(ohci)->self.controller;
+        struct device *dev = ohci_to_hcd(ohci)->self.controller;
+        struct usb_host_endpoint *ep = urb->ep;
+        struct urb_priv *urb_priv;
+
         // ASSERT (urb->hcpriv != 0);
 
+ restart:
         urb_free_priv (ohci, urb->hcpriv);
         urb->hcpriv = NULL;
         if (likely(status == -EINPROGRESS))
@@ -80,6 +84,21 @@ __acquires(ohci->lock)
                 ohci->hc_control &= ~(OHCI_CTRL_PLE|OHCI_CTRL_IE);
                 ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
         }
+
+        /*
+         * An isochronous URB that is sumitted too late won't have any TDs
+         * (marked by the fact that the td_cnt value is larger than the
+         * actual number of TDs).  If the next URB on this endpoint is like
+         * that, give it back now.
+         */
+        if (!list_empty(&ep->urb_list)) {
+                urb = list_first_entry(&ep->urb_list, struct urb, urb_list);
+                urb_priv = urb->hcpriv;
+                if (urb_priv->td_cnt > urb_priv->length) {
+                        status = 0;
+                        goto restart;
+                }
+        }
 }
 
 
@@ -546,7 +565,6 @@ td_fill (struct ohci_hcd *ohci, u32 info,
                 td->hwCBP = cpu_to_hc32 (ohci, data & 0xFFFFF000);
                 *ohci_hwPSWp(ohci, td, 0) = cpu_to_hc16 (ohci,
                                                 (data & 0x0FFF) | 0xE000);
-                td->ed->last_iso = info & 0xffff;
         } else {
                 td->hwCBP = cpu_to_hc32 (ohci, data);
         }
@@ -996,7 +1014,7 @@ rescan_this:
                         urb_priv->td_cnt++;
 
                         /* if URB is done, clean up */
-                        if (urb_priv->td_cnt == urb_priv->length) {
+                        if (urb_priv->td_cnt >= urb_priv->length) {
                                 modified = completed = 1;
                                 finish_urb(ohci, urb, 0);
                         }
@@ -1086,7 +1104,7 @@ static void takeback_td(struct ohci_hcd *ohci, struct td *td)
         urb_priv->td_cnt++;
 
         /* If all this urb's TDs are done, call complete() */
-        if (urb_priv->td_cnt == urb_priv->length)
+        if (urb_priv->td_cnt >= urb_priv->length)
                 finish_urb(ohci, urb, status);
 
         /* clean schedule:  unlink EDs that are no longer busy */
diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c
index c300bd2f7d1c..0f228c46eeda 100644
--- a/drivers/usb/host/uhci-pci.c
+++ b/drivers/usb/host/uhci-pci.c
@@ -293,7 +293,7 @@ static struct pci_driver uhci_pci_driver = {
         .remove =       usb_hcd_pci_remove,
         .shutdown =     uhci_shutdown,
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
         .driver =       {
                 .pm =   &usb_hcd_pci_pm_ops
         },
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index 041c6ddb695c..da6f56d996ce 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -1303,7 +1303,7 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb,
                 }
 
                 /* Fell behind? */
-                if (uhci_frame_before_eq(frame, next)) {
+                if (!uhci_frame_before_eq(next, frame)) {
 
                         /* USB_ISO_ASAP: Round up to the first available slot */
                         if (urb->transfer_flags & URB_ISO_ASAP)
@@ -1311,13 +1311,17 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb,
                                                 -qh->period;
 
                         /*
-                         * Not ASAP: Use the next slot in the stream.  If
-                         * the entire URB falls before the threshold, fail.
+                         * Not ASAP: Use the next slot in the stream,
+                         * no matter what.
                          */
                         else if (!uhci_frame_before_eq(next,
                                         frame + (urb->number_of_packets - 1) *
                                                 qh->period))
-                                return -EXDEV;
+                                dev_dbg(uhci_dev(uhci), "iso underrun %p (%u+%u < %u)\n",
+                                                urb, frame,
+                                                (urb->number_of_packets - 1) *
+                                                        qh->period,
+                                                next);
                 }
         }
 
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index fae697ed0b70..773a6b28c4f1 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -287,7 +287,7 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
                 if (virt_dev->eps[i].ring && virt_dev->eps[i].ring->dequeue)
                         xhci_queue_stop_endpoint(xhci, slot_id, i, suspend);
         }
-        cmd->command_trb = xhci->cmd_ring->enqueue;
+        cmd->command_trb = xhci_find_next_enqueue(xhci->cmd_ring);
         list_add_tail(&cmd->cmd_list, &virt_dev->cmd_list);
         xhci_queue_stop_endpoint(xhci, slot_id, 0, suspend);
         xhci_ring_cmd_db(xhci);
@@ -552,11 +552,15 @@ void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, u16 wIndex)
  *  - Mark a port as being done with device resume,
  *    and ring the endpoint doorbells.
  *  - Stop the Synopsys redriver Compliance Mode polling.
+ *  - Drop and reacquire the xHCI lock, in order to wait for port resume.
  */
 static u32 xhci_get_port_status(struct usb_hcd *hcd,
                 struct xhci_bus_state *bus_state,
                 __le32 __iomem **port_array,
-                u16 wIndex, u32 raw_port_status)
+                u16 wIndex, u32 raw_port_status,
+                unsigned long flags)
+        __releases(&xhci->lock)
+        __acquires(&xhci->lock)
 {
         struct xhci_hcd *xhci = hcd_to_xhci(hcd);
         u32 status = 0;
@@ -591,21 +595,42 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
                         return 0xffffffff;
                 if (time_after_eq(jiffies,
                                         bus_state->resume_done[wIndex])) {
+                        int time_left;
+
                         xhci_dbg(xhci, "Resume USB2 port %d\n",
                                         wIndex + 1);
                         bus_state->resume_done[wIndex] = 0;
                         clear_bit(wIndex, &bus_state->resuming_ports);
+
+                        set_bit(wIndex, &bus_state->rexit_ports);
                         xhci_set_link_state(xhci, port_array, wIndex,
                                         XDEV_U0);
-                        xhci_dbg(xhci, "set port %d resume\n",
-                                        wIndex + 1);
-                        slot_id = xhci_find_slot_id_by_port(hcd, xhci,
-                                        wIndex + 1);
-                        if (!slot_id) {
-                                xhci_dbg(xhci, "slot_id is zero\n");
-                                return 0xffffffff;
+
+                        spin_unlock_irqrestore(&xhci->lock, flags);
+                        time_left = wait_for_completion_timeout(
+                                        &bus_state->rexit_done[wIndex],
+                                        msecs_to_jiffies(
+                                                XHCI_MAX_REXIT_TIMEOUT));
+                        spin_lock_irqsave(&xhci->lock, flags);
+
+                        if (time_left) {
+                                slot_id = xhci_find_slot_id_by_port(hcd,
+                                                xhci, wIndex + 1);
+                                if (!slot_id) {
+                                        xhci_dbg(xhci, "slot_id is zero\n");
+                                        return 0xffffffff;
+                                }
+                                xhci_ring_device(xhci, slot_id);
+                        } else {
+                                int port_status = xhci_readl(xhci,
+                                                port_array[wIndex]);
+                                xhci_warn(xhci, "Port resume took longer than %i msec, port status = 0x%x\n",
+                                                XHCI_MAX_REXIT_TIMEOUT,
+                                                port_status);
+                                status |= USB_PORT_STAT_SUSPEND;
+                                clear_bit(wIndex, &bus_state->rexit_ports);
                         }
-                        xhci_ring_device(xhci, slot_id);
+
                         bus_state->port_c_suspend |= 1 << wIndex;
                         bus_state->suspended_ports &= ~(1 << wIndex);
                 } else {
@@ -728,7 +753,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
                         break;
                 }
                 status = xhci_get_port_status(hcd, bus_state, port_array,
-                                wIndex, temp);
+                                wIndex, temp, flags);
                 if (status == 0xffffffff)
                         goto error;
 
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 53b972c2a09f..83bcd13622c3 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -2428,6 +2428,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
         for (i = 0; i < USB_MAXCHILDREN; ++i) {
                 xhci->bus_state[0].resume_done[i] = 0;
                 xhci->bus_state[1].resume_done[i] = 0;
+                /* Only the USB 2.0 completions will ever be used. */
+                init_completion(&xhci->bus_state[1].rexit_done[i]);
         }
 
         if (scratchpad_alloc(xhci, flags))
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index c2d495057eb5..236c3aabe940 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -351,7 +351,7 @@ static struct pci_driver xhci_pci_driver = {
         /* suspend and resume implemented later */
 
         .shutdown =     usb_hcd_pci_shutdown,
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
         .driver = {
                 .pm = &usb_hcd_pci_pm_ops
         },
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 411da1fc7ae8..6bfbd80ec2b9 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -123,6 +123,16 @@ static int enqueue_is_link_trb(struct xhci_ring *ring)
         return TRB_TYPE_LINK_LE32(link->control);
 }
 
+union xhci_trb *xhci_find_next_enqueue(struct xhci_ring *ring)
+{
+        /* Enqueue pointer can be left pointing to the link TRB,
+         * we must handle that
+         */
+        if (TRB_TYPE_LINK_LE32(ring->enqueue->link.control))
+                return ring->enq_seg->next->trbs;
+        return ring->enqueue;
+}
+
 /* Updates trb to point to the next TRB in the ring, and updates seg if the next
  * TRB is in a new segment.  This does not skip over link TRBs, and it does not
  * effect the ring dequeue or enqueue pointers.
@@ -859,8 +869,12 @@ remove_finished_td:
                 /* Otherwise ring the doorbell(s) to restart queued transfers */
                 ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
         }
-        ep->stopped_td = NULL;
-        ep->stopped_trb = NULL;
+
+        /* Clear stopped_td and stopped_trb if endpoint is not halted */
+        if (!(ep->ep_state & EP_HALTED)) {
+                ep->stopped_td = NULL;
+                ep->stopped_trb = NULL;
+        }
 
         /*
          * Drop the lock and complete the URBs in the cancelled TD list.
@@ -1414,6 +1428,12 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
                         inc_deq(xhci, xhci->cmd_ring);
                         return;
                 }
+                /* There is no command to handle if we get a stop event when the
+                 * command ring is empty, event->cmd_trb points to the next
+                 * unset command
+                 */
+                if (xhci->cmd_ring->dequeue == xhci->cmd_ring->enqueue)
+                        return;
         }
 
         switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])
@@ -1743,6 +1763,19 @@ static void handle_port_status(struct xhci_hcd *xhci,
                 }
         }
 
+        /*
+         * Check to see if xhci-hub.c is waiting on RExit to U0 transition (or
+         * RExit to a disconnect state).  If so, let the the driver know it's
+         * out of the RExit state.
+         */
+        if (!DEV_SUPERSPEED(temp) &&
+                        test_and_clear_bit(faked_port_index,
+                                &bus_state->rexit_ports)) {
+                complete(&bus_state->rexit_done[faked_port_index]);
+                bogus_port_status = true;
+                goto cleanup;
+        }
+
         if (hcd->speed != HCD_USB3)
                 xhci_test_and_clear_bit(xhci, port_array, faked_port_index,
                                         PORT_PLC);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 49b6edb84a79..1e36dbb48366 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -2598,15 +2598,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
         if (command) {
                 cmd_completion = command->completion;
                 cmd_status = &command->status;
-                command->command_trb = xhci->cmd_ring->enqueue;
-
-                /* Enqueue pointer can be left pointing to the link TRB,
-                 * we must handle that
-                 */
-                if (TRB_TYPE_LINK_LE32(command->command_trb->link.control))
-                        command->command_trb =
-                                xhci->cmd_ring->enq_seg->next->trbs;
-
+                command->command_trb = xhci_find_next_enqueue(xhci->cmd_ring);
                 list_add_tail(&command->cmd_list, &virt_dev->cmd_list);
         } else {
                 cmd_completion = &virt_dev->cmd_completion;
@@ -2614,7 +2606,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
         }
         init_completion(cmd_completion);
 
-        cmd_trb = xhci->cmd_ring->dequeue;
+        cmd_trb = xhci_find_next_enqueue(xhci->cmd_ring);
         if (!ctx_change)
                 ret = xhci_queue_configure_endpoint(xhci, in_ctx->dma,
                                 udev->slot_id, must_succeed);
@@ -3439,14 +3431,7 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev)
 
         /* Attempt to submit the Reset Device command to the command ring */
         spin_lock_irqsave(&xhci->lock, flags);
-        reset_device_cmd->command_trb = xhci->cmd_ring->enqueue;
-
-        /* Enqueue pointer can be left pointing to the link TRB,
-         * we must handle that
-         */
-        if (TRB_TYPE_LINK_LE32(reset_device_cmd->command_trb->link.control))
-                reset_device_cmd->command_trb =
-                        xhci->cmd_ring->enq_seg->next->trbs;
+        reset_device_cmd->command_trb = xhci_find_next_enqueue(xhci->cmd_ring);
 
         list_add_tail(&reset_device_cmd->cmd_list, &virt_dev->cmd_list);
         ret = xhci_queue_reset_device(xhci, slot_id);
@@ -3650,7 +3635,7 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
         union xhci_trb *cmd_trb;
 
         spin_lock_irqsave(&xhci->lock, flags);
-        cmd_trb = xhci->cmd_ring->dequeue;
+        cmd_trb = xhci_find_next_enqueue(xhci->cmd_ring);
         ret = xhci_queue_slot_control(xhci, TRB_ENABLE_SLOT, 0);
         if (ret) {
                 spin_unlock_irqrestore(&xhci->lock, flags);
@@ -3785,7 +3770,7 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
                                 slot_ctx->dev_info >> 27);
 
         spin_lock_irqsave(&xhci->lock, flags);
-        cmd_trb = xhci->cmd_ring->dequeue;
+        cmd_trb = xhci_find_next_enqueue(xhci->cmd_ring);
         ret = xhci_queue_address_device(xhci, virt_dev->in_ctx->dma,
                                         udev->slot_id);
         if (ret) {
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 46aa14894148..289fbfbae746 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1412,8 +1412,18 @@ struct xhci_bus_state {
         unsigned long           resume_done[USB_MAXCHILDREN];
         /* which ports have started to resume */
         unsigned long           resuming_ports;
+        /* Which ports are waiting on RExit to U0 transition. */
+        unsigned long           rexit_ports;
+        struct completion       rexit_done[USB_MAXCHILDREN];
 };
 
+
+/*
+ * It can take up to 20 ms to transition from RExit to U0 on the
+ * Intel Lynx Point LP xHCI host.
+ */
+#define XHCI_MAX_REXIT_TIMEOUT  (20 * 1000)
+
 static inline unsigned int hcd_index(struct usb_hcd *hcd)
 {
         if (hcd->speed == HCD_USB3)
@@ -1840,6 +1850,7 @@ int xhci_cancel_cmd(struct xhci_hcd *xhci, struct xhci_command *command,
                 union xhci_trb *cmd_trb);
 void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id,
                 unsigned int ep_index, unsigned int stream_id);
+union xhci_trb *xhci_find_next_enqueue(struct xhci_ring *ring);
 
 /* xHCI roothub code */
 void xhci_set_link_state(struct xhci_hcd *xhci, __le32 __iomem **port_array,
diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c
index fc15694d3031..4e8a0405f956 100644
--- a/drivers/usb/phy/phy-omap-usb3.c
+++ b/drivers/usb/phy/phy-omap-usb3.c
@@ -79,7 +79,7 @@ static struct usb_dpll_params *omap_usb3_get_dpll_params(unsigned long rate)
                         return &dpll_map[i].params;
         }
 
-        return 0;
+        return NULL;
 }
 
 static int omap_usb3_suspend(struct usb_phy *x, int suspend)
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index c454bfa22a10..ddb9c51f2c99 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -60,7 +60,7 @@ config USB_SERIAL_SIMPLE
                 - Suunto ANT+ USB device.
                 - Fundamental Software dongle.
                 - HP4x calculators
-                - a number of Motoroloa phones
+                - a number of Motorola phones
                 - Siemens USB/MPI adapter.
                 - ViVOtech ViVOpay USB device.
                 - Infineon Modem Flashloader USB interface
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index e7a84f0f5179..bedf8e47713b 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -139,6 +139,7 @@ enum pl2303_type {
         HX_TA,          /* HX(A) / X(A) / TA version  */ /* TODO: improve */
         HXD_EA_RA_SA,   /* HXD / EA / RA / SA version */ /* TODO: improve */
         TB,             /* TB version */
+        HX_CLONE,       /* Cheap and less functional clone of the HX chip */
 };
 /*
  * NOTE: don't know the difference between type 0 and type 1,
@@ -206,8 +207,23 @@ static int pl2303_startup(struct usb_serial *serial)
                  * the device descriptors of the X/HX, HXD, EA, RA, SA, TA, TB
                  */
                 if (le16_to_cpu(serial->dev->descriptor.bcdDevice) == 0x300) {
-                        type = HX_TA;
-                        type_str = "X/HX/TA";
+                        /* Check if the device is a clone */
+                        pl2303_vendor_read(0x9494, 0, serial, buf);
+                        /*
+                         * NOTE: Not sure if this read is really needed.
+                         * The HX returns 0x00, the clone 0x02, but the Windows
+                         * driver seems to ignore the value and continues.
+                         */
+                        pl2303_vendor_write(0x0606, 0xaa, serial);
+                        pl2303_vendor_read(0x8686, 0, serial, buf);
+                        if (buf[0] != 0xaa) {
+                                type = HX_CLONE;
+                                type_str = "X/HX clone (limited functionality)";
+                        } else {
+                                type = HX_TA;
+                                type_str = "X/HX/TA";
+                        }
+                        pl2303_vendor_write(0x0606, 0x00, serial);
                 } else if (le16_to_cpu(serial->dev->descriptor.bcdDevice)
                                                                      == 0x400) {
                         type = HXD_EA_RA_SA;
@@ -305,8 +321,9 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type,
 {
         /*
          * NOTE: Only the values defined in baud_sup are supported !
-         *       => if unsupported values are set, the PL2303 seems to
-         *          use 9600 baud (at least my PL2303X always does)
+         * => if unsupported values are set, the PL2303 uses 9600 baud instead
+         * => HX clones just don't work at unsupported baud rates < 115200 baud,
+         *    for baud rates > 115200 they run at 115200 baud
          */
         const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600,
                                  4800, 7200, 9600, 14400, 19200, 28800, 38400,
@@ -316,14 +333,14 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type,
          * NOTE: With the exception of type_0/1 devices, the following
          * additional baud rates are supported (tested with HX rev. 3A only):
          * 110*, 56000*, 128000, 134400, 161280, 201600, 256000*, 268800,
-         * 403200, 806400.      (*: not HX)
+         * 403200, 806400.      (*: not HX and HX clones)
          *
          * Maximum values: HXD, TB: 12000000; HX, TA: 6000000;
-         *                 type_0+1: 1228800; RA: 921600; SA: 115200
+         *                 type_0+1: 1228800; RA: 921600; HX clones, SA: 115200
          *
          * As long as we are not using this encoding method for anything else
-         * than the type_0+1 and HX chips, there is no point in complicating
-         * the code to support them.
+         * than the type_0+1, HX and HX clone chips, there is no point in
+         * complicating the code to support them.
          */
         int i;
 
@@ -347,6 +364,8 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type,
                 baud = min_t(int, baud, 6000000);
         else if (type == type_0 || type == type_1)
                 baud = min_t(int, baud, 1228800);
+        else if (type == HX_CLONE)
+                baud = min_t(int, baud, 115200);
         /* Direct (standard) baud rate encoding method */
         put_unaligned_le32(baud, buf);
 
@@ -359,7 +378,8 @@ static int pl2303_baudrate_encode_divisor(int baud, enum pl2303_type type,
         /*
          * Divisor based baud rate encoding method
          *
-         * NOTE: it's not clear if the type_0/1 chips support this method
+         * NOTE: HX clones do NOT support this method.
+         * It's not clear if the type_0/1 chips support it.
          *
          * divisor = 12MHz * 32 / baudrate = 2^A * B
          *
@@ -452,7 +472,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty,
          * 1) Direct method: encodes the baud rate value directly
          *    => supported by all chip types
          * 2) Divisor based method: encodes a divisor to a base value (12MHz*32)
-         *    => supported by HX chips (and likely not by type_0/1 chips)
+         *    => not supported by HX clones (and likely type_0/1 chips)
          *
          * NOTE: Although the divisor based baud rate encoding method is much
          * more flexible, some of the standard baud rate values can not be
@@ -460,7 +480,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty,
          * the device likely uses the same baud rate generator for both methods
          * so that there is likley no difference.
          */
-        if (type == type_0 || type == type_1)
+        if (type == type_0 || type == type_1 || type == HX_CLONE)
                 baud = pl2303_baudrate_encode_direct(baud, type, buf);
         else
                 baud = pl2303_baudrate_encode_divisor(baud, type, buf);
@@ -813,6 +833,7 @@ static void pl2303_break_ctl(struct tty_struct *tty, int break_state)
         result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
                                  BREAK_REQUEST, BREAK_REQUEST_TYPE, state,
                                  0, NULL, 0, 100);
+        /* NOTE: HX clones don't support sending breaks, -EPIPE is returned */
         if (result)
                 dev_err(&port->dev, "error sending break = %d\n", result);
 }
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 4b79a1f2f901..592b31698fc8 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -461,7 +461,7 @@ static void tcm_vhost_release_cmd(struct se_cmd *se_cmd)
                 u32 i;
                 for (i = 0; i < tv_cmd->tvc_sgl_count; i++)
                         put_page(sg_page(&tv_cmd->tvc_sgl[i]));
-        }
+        }
 
         tcm_vhost_put_inflight(tv_cmd->inflight);
         percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag);
@@ -1373,21 +1373,30 @@ static int vhost_scsi_set_features(struct vhost_scsi *vs, u64 features)
         return 0;
 }
 
+static void vhost_scsi_free(struct vhost_scsi *vs)
+{
+        if (is_vmalloc_addr(vs))
+                vfree(vs);
+        else
+                kfree(vs);
+}
+
 static int vhost_scsi_open(struct inode *inode, struct file *f)
 {
         struct vhost_scsi *vs;
         struct vhost_virtqueue **vqs;
-        int r, i;
+        int r = -ENOMEM, i;
 
-        vs = kzalloc(sizeof(*vs), GFP_KERNEL);
-        if (!vs)
-                return -ENOMEM;
+        vs = kzalloc(sizeof(*vs), GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
+        if (!vs) {
+                vs = vzalloc(sizeof(*vs));
+                if (!vs)
+                        goto err_vs;
+        }
 
         vqs = kmalloc(VHOST_SCSI_MAX_VQ * sizeof(*vqs), GFP_KERNEL);
-        if (!vqs) {
-                kfree(vs);
-                return -ENOMEM;
-        }
+        if (!vqs)
+                goto err_vqs;
 
         vhost_work_init(&vs->vs_completion_work, vhost_scsi_complete_cmd_work);
         vhost_work_init(&vs->vs_event_work, tcm_vhost_evt_work);
@@ -1407,14 +1416,18 @@ static int vhost_scsi_open(struct inode *inode, struct file *f)
 
         tcm_vhost_init_inflight(vs, NULL);
 
-        if (r < 0) {
-                kfree(vqs);
-                kfree(vs);
-                return r;
-        }
+        if (r < 0)
+                goto err_init;
 
         f->private_data = vs;
         return 0;
+
+err_init:
+        kfree(vqs);
+err_vqs:
+        vhost_scsi_free(vs);
+err_vs:
+        return r;
 }
 
 static int vhost_scsi_release(struct inode *inode, struct file *f)
@@ -1431,7 +1444,7 @@ static int vhost_scsi_release(struct inode *inode, struct file *f)
         /* Jobs can re-queue themselves in evt kick handler. Do extra flush. */
         vhost_scsi_flush(vs);
         kfree(vs->dev.vqs);
-        kfree(vs);
+        vhost_scsi_free(vs);
         return 0;
 }
 
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 9a9502a4aa50..69068e0d8f31 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -161,9 +161,11 @@ void vhost_work_queue(struct vhost_dev *dev, struct vhost_work *work)
         if (list_empty(&work->node)) {
                 list_add_tail(&work->node, &dev->work_list);
                 work->queue_seq++;
+                spin_unlock_irqrestore(&dev->work_lock, flags);
                 wake_up_process(dev->worker);
+        } else {
+                spin_unlock_irqrestore(&dev->work_lock, flags);
         }
-        spin_unlock_irqrestore(&dev->work_lock, flags);
 }
 EXPORT_SYMBOL_GPL(vhost_work_queue);
 
diff --git a/drivers/video/mmp/hw/mmp_ctrl.c b/drivers/video/mmp/hw/mmp_ctrl.c
index 75dca19bf214..6ac755270ab4 100644
--- a/drivers/video/mmp/hw/mmp_ctrl.c
+++ b/drivers/video/mmp/hw/mmp_ctrl.c
@@ -514,7 +514,7 @@ static int mmphw_probe(struct platform_device *pdev)
         if (IS_ERR(ctrl->clk)) {
                 dev_err(ctrl->dev, "unable to get clk %s\n", mi->clk_name);
                 ret = -ENOENT;
-                goto failed_get_clk;
+                goto failed;
         }
         clk_prepare_enable(ctrl->clk);
 
@@ -551,21 +551,8 @@ failed_path_init:
                 path_deinit(path_plat);
         }
 
-        if (ctrl->clk) {
-                devm_clk_put(ctrl->dev, ctrl->clk);
-                clk_disable_unprepare(ctrl->clk);
-        }
-failed_get_clk:
-        devm_free_irq(ctrl->dev, ctrl->irq, ctrl);
+        clk_disable_unprepare(ctrl->clk);
 failed:
-        if (ctrl) {
-                if (ctrl->reg_base)
-                        devm_iounmap(ctrl->dev, ctrl->reg_base);
-                devm_release_mem_region(ctrl->dev, res->start,
-                                resource_size(res));
-                devm_kfree(ctrl->dev, ctrl);
-        }
-
         dev_err(&pdev->dev, "device init failed\n");
 
         return ret;
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index d250ed0f806d..27197a8048c0 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -620,6 +620,7 @@ static int mxsfb_restore_mode(struct mxsfb_info *host)
                 break;
         case 3:
                 bits_per_pixel = 32;
+                break;
         case 1:
         default:
                 return -EINVAL;
diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c
index 7ef079c146e7..c172a5281f9e 100644
--- a/drivers/video/neofb.c
+++ b/drivers/video/neofb.c
@@ -2075,6 +2075,7 @@ static int neofb_probe(struct pci_dev *dev, const struct pci_device_id *id)
         if (!fb_find_mode(&info->var, info, mode_option, NULL, 0,
                         info->monspecs.modedb, 16)) {
                 printk(KERN_ERR "neofb: Unable to find usable video mode.\n");
+                err = -EINVAL;
                 goto err_map_video;
         }
 
@@ -2097,7 +2098,8 @@ static int neofb_probe(struct pci_dev *dev, const struct pci_device_id *id)
                info->fix.smem_len >> 10, info->var.xres,
                info->var.yres, h_sync / 1000, h_sync % 1000, v_sync);
 
-        if (fb_alloc_cmap(&info->cmap, 256, 0) < 0)
+        err = fb_alloc_cmap(&info->cmap, 256, 0);
+        if (err < 0)
                 goto err_map_video;
 
         err = register_framebuffer(info);
diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_timing.c
index 171821ddd78d..ba5b40f581f6 100644
--- a/drivers/video/of_display_timing.c
+++ b/drivers/video/of_display_timing.c
@@ -120,7 +120,7 @@ int of_get_display_timing(struct device_node *np, const char *name,
                 return -EINVAL;
         }
 
-        timing_np = of_find_node_by_name(np, name);
+        timing_np = of_get_child_by_name(np, name);
         if (!timing_np) {
                 pr_err("%s: could not find node '%s'\n",
                         of_node_full_name(np), name);
@@ -143,11 +143,11 @@ struct display_timings *of_get_display_timings(struct device_node *np)
         struct display_timings *disp;
 
         if (!np) {
-                pr_err("%s: no devicenode given\n", of_node_full_name(np));
+                pr_err("%s: no device node given\n", of_node_full_name(np));
                 return NULL;
         }
 
-        timings_np = of_find_node_by_name(np, "display-timings");
+        timings_np = of_get_child_by_name(np, "display-timings");
         if (!timings_np) {
                 pr_err("%s: could not find display-timings node\n",
                         of_node_full_name(np));
diff --git a/drivers/video/omap2/displays-new/Kconfig b/drivers/video/omap2/displays-new/Kconfig
index 6c90885b0940..10b25e7cd878 100644
--- a/drivers/video/omap2/displays-new/Kconfig
+++ b/drivers/video/omap2/displays-new/Kconfig
@@ -35,6 +35,7 @@ config DISPLAY_PANEL_DPI
 
 config DISPLAY_PANEL_DSI_CM
         tristate "Generic DSI Command Mode Panel"
+        depends on BACKLIGHT_CLASS_DEVICE
         help
           Driver for generic DSI command mode panels.
 
diff --git a/drivers/video/omap2/displays-new/connector-analog-tv.c b/drivers/video/omap2/displays-new/connector-analog-tv.c
index 1b60698f141e..ccd9073f706f 100644
--- a/drivers/video/omap2/displays-new/connector-analog-tv.c
+++ b/drivers/video/omap2/displays-new/connector-analog-tv.c
@@ -191,7 +191,7 @@ static int tvc_probe_pdata(struct platform_device *pdev)
         in = omap_dss_find_output(pdata->source);
         if (in == NULL) {
                 dev_err(&pdev->dev, "Failed to find video source\n");
-                return -ENODEV;
+                return -EPROBE_DEFER;
         }
 
         ddata->in = in;
diff --git a/drivers/video/omap2/displays-new/connector-dvi.c b/drivers/video/omap2/displays-new/connector-dvi.c
index bc5f8ceda371..63d88ee6dfe4 100644
--- a/drivers/video/omap2/displays-new/connector-dvi.c
+++ b/drivers/video/omap2/displays-new/connector-dvi.c
@@ -263,7 +263,7 @@ static int dvic_probe_pdata(struct platform_device *pdev)
         in = omap_dss_find_output(pdata->source);
         if (in == NULL) {
                 dev_err(&pdev->dev, "Failed to find video source\n");
-                return -ENODEV;
+                return -EPROBE_DEFER;
         }
 
         ddata->in = in;
diff --git a/drivers/video/omap2/displays-new/connector-hdmi.c b/drivers/video/omap2/displays-new/connector-hdmi.c
index c5826716d6ab..9abe2c039ae9 100644
--- a/drivers/video/omap2/displays-new/connector-hdmi.c
+++ b/drivers/video/omap2/displays-new/connector-hdmi.c
@@ -290,7 +290,7 @@ static int hdmic_probe_pdata(struct platform_device *pdev)
         in = omap_dss_find_output(pdata->source);
         if (in == NULL) {
                 dev_err(&pdev->dev, "Failed to find video source\n");
-                return -ENODEV;
+                return -EPROBE_DEFER;
         }
 
         ddata->in = in;
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 02a7340111df..477975009eee 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3691,6 +3691,7 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
         }
 
         pm_runtime_enable(&pdev->dev);
+        pm_runtime_irq_safe(&pdev->dev);
 
         r = dispc_runtime_get();
         if (r)
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index 47ca86c5c6c0..d838ba829459 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -1336,14 +1336,7 @@ static int s3_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
                         (info->var.bits_per_pixel * info->var.xres_virtual);
         if (info->var.yres_virtual < info->var.yres) {
                 dev_err(info->device, "virtual vertical size smaller than real\n");
-                goto err_find_mode;
-        }
-
-        /* maximize virtual vertical size for fast scrolling */
-        info->var.yres_virtual = info->fix.smem_len * 8 /
-                        (info->var.bits_per_pixel * info->var.xres_virtual);
-        if (info->var.yres_virtual < info->var.yres) {
-                dev_err(info->device, "virtual vertical size smaller than real\n");
+                rc = -EINVAL;
                 goto err_find_mode;
         }
 
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index a50c6e3a7cc4..b232908a6192 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -398,8 +398,6 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
         if (nr_pages > ARRAY_SIZE(frame_list))
                 nr_pages = ARRAY_SIZE(frame_list);
 
-        scratch_page = get_balloon_scratch_page();
-
         for (i = 0; i < nr_pages; i++) {
                 page = alloc_page(gfp);
                 if (page == NULL) {
@@ -413,6 +411,12 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
 
                 scrub_page(page);
 
+                /*
+                 * Ballooned out frames are effectively replaced with
+                 * a scratch frame.  Ensure direct mappings and the
+                 * p2m are consistent.
+                 */
+                scratch_page = get_balloon_scratch_page();
 #ifdef CONFIG_XEN_HAVE_PVMMU
                 if (xen_pv_domain() && !PageHighMem(page)) {
                         ret = HYPERVISOR_update_va_mapping(
@@ -422,24 +426,19 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
                         BUG_ON(ret);
                 }
 #endif
-        }
-
-        /* Ensure that ballooned highmem pages don't have kmaps. */
-        kmap_flush_unused();
-        flush_tlb_all();
-
-        /* No more mappings: invalidate P2M and add to balloon. */
-        for (i = 0; i < nr_pages; i++) {
-                pfn = mfn_to_pfn(frame_list[i]);
                 if (!xen_feature(XENFEAT_auto_translated_physmap)) {
                         unsigned long p;
                         p = page_to_pfn(scratch_page);
                         __set_phys_to_machine(pfn, pfn_to_mfn(p));
                 }
+                put_balloon_scratch_page();
+
                 balloon_append(pfn_to_page(pfn));
         }
 
-        put_balloon_scratch_page();
+        /* Ensure that ballooned highmem pages don't have kmaps. */
+        kmap_flush_unused();
+        flush_tlb_all();
 
         set_xen_guest_handle(reservation.extent_start, frame_list);
         reservation.nr_extents   = nr_pages;