426 files changed, 5144 insertions, 3190 deletions

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index ecb743bf05a5..536562c626a2 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -24,7 +24,7 @@ acpi-y				+= nvs.o
 # Power management related files
 acpi-y                          += wakeup.o
 acpi-y                          += sleep.o
-acpi-$(CONFIG_PM)               += device_pm.o
+acpi-y                          += device_pm.o
 acpi-$(CONFIG_ACPI_SLEEP)       += proc.o
 
 
@@ -38,7 +38,6 @@ acpi-y				+= processor_core.o
 acpi-y                          += ec.o
 acpi-$(CONFIG_ACPI_DOCK)        += dock.o
 acpi-y                          += pci_root.o pci_link.o pci_irq.o
-acpi-y                          += csrt.o
 acpi-$(CONFIG_X86_INTEL_LPSS)   += acpi_lpss.o
 acpi-y                          += acpi_platform.o
 acpi-y                          += power.o
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 00d2efd674df..4f4e741d34b2 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -28,6 +28,8 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/types.h>
+#include <linux/dmi.h>
+#include <linux/delay.h>
 #ifdef CONFIG_ACPI_PROCFS_POWER
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
@@ -74,6 +76,8 @@ static int acpi_ac_resume(struct device *dev);
 #endif
 static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
 
+static int ac_sleep_before_get_state_ms;
+
 static struct acpi_driver acpi_ac_driver = {
         .name = "ac",
         .class = ACPI_AC_CLASS,
@@ -252,6 +256,16 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
         case ACPI_AC_NOTIFY_STATUS:
         case ACPI_NOTIFY_BUS_CHECK:
         case ACPI_NOTIFY_DEVICE_CHECK:
+                /*
+                 * A buggy BIOS may notify AC first and then sleep for
+                 * a specific time before doing actual operations in the
+                 * EC event handler (_Qxx). This will cause the AC state
+                 * reported by the ACPI event to be incorrect, so wait for a
+                 * specific time for the EC event handler to make progress.
+                 */
+                if (ac_sleep_before_get_state_ms > 0)
+                        msleep(ac_sleep_before_get_state_ms);
+
                 acpi_ac_get_state(ac);
                 acpi_bus_generate_proc_event(device, event, (u32) ac->state);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
@@ -264,6 +278,24 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
         return;
 }
 
+static int thinkpad_e530_quirk(const struct dmi_system_id *d)
+{
+        ac_sleep_before_get_state_ms = 1000;
+        return 0;
+}
+
+static struct dmi_system_id ac_dmi_table[] = {
+        {
+        .callback = thinkpad_e530_quirk,
+        .ident = "thinkpad e530",
+        .matches = {
+                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                DMI_MATCH(DMI_PRODUCT_NAME, "32597CG"),
+                },
+        },
+        {},
+};
+
 static int acpi_ac_add(struct acpi_device *device)
 {
         int result = 0;
@@ -312,6 +344,7 @@ static int acpi_ac_add(struct acpi_device *device)
                 kfree(ac);
         }
 
+        dmi_check_system(ac_dmi_table);
         return result;
 }
 
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index b1c95422ce74..652fd5ce303c 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -35,11 +35,16 @@ ACPI_MODULE_NAME("acpi_lpss");
 
 struct lpss_device_desc {
         bool clk_required;
-        const char *clk_parent;
+        const char *clkdev_name;
         bool ltr_required;
         unsigned int prv_offset;
 };
 
+static struct lpss_device_desc lpss_dma_desc = {
+        .clk_required = true,
+        .clkdev_name = "hclk",
+};
+
 struct lpss_private_data {
         void __iomem *mmio_base;
         resource_size_t mmio_size;
@@ -49,7 +54,6 @@ struct lpss_private_data {
 
 static struct lpss_device_desc lpt_dev_desc = {
         .clk_required = true,
-        .clk_parent = "lpss_clk",
         .prv_offset = 0x800,
         .ltr_required = true,
 };
@@ -60,6 +64,9 @@ static struct lpss_device_desc lpt_sdio_dev_desc = {
 };
 
 static const struct acpi_device_id acpi_lpss_device_ids[] = {
+        /* Generic LPSS devices */
+        { "INTL9C60", (unsigned long)&lpss_dma_desc },
+
         /* Lynxpoint LPSS devices */
         { "INT33C0", (unsigned long)&lpt_dev_desc },
         { "INT33C1", (unsigned long)&lpt_dev_desc },
@@ -91,16 +98,27 @@ static int register_device_clock(struct acpi_device *adev,
                                  struct lpss_private_data *pdata)
 {
         const struct lpss_device_desc *dev_desc = pdata->dev_desc;
+        struct lpss_clk_data *clk_data;
 
         if (!lpss_clk_dev)
                 lpt_register_clock_device();
 
-        if (!dev_desc->clk_parent || !pdata->mmio_base
+        clk_data = platform_get_drvdata(lpss_clk_dev);
+        if (!clk_data)
+                return -ENODEV;
+
+        if (dev_desc->clkdev_name) {
+                clk_register_clkdev(clk_data->clk, dev_desc->clkdev_name,
+                                    dev_name(&adev->dev));
+                return 0;
+        }
+
+        if (!pdata->mmio_base
             || pdata->mmio_size < dev_desc->prv_offset + LPSS_CLK_SIZE)
                 return -ENODATA;
 
         pdata->clk = clk_register_gate(NULL, dev_name(&adev->dev),
-                                       dev_desc->clk_parent, 0,
+                                       clk_data->name, 0,
                                        pdata->mmio_base + dev_desc->prv_offset,
                                        0, 0, NULL);
         if (IS_ERR(pdata->clk))
diff --git a/drivers/acpi/csrt.c b/drivers/acpi/csrt.c
deleted file mode 100644
index 5c15a91faf0b..000000000000
--- a/drivers/acpi/csrt.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * Support for Core System Resources Table (CSRT)
- *
- * Copyright (C) 2013, Intel Corporation
- * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
- *          Andy Shevchenko <andriy.shevchenko@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#define pr_fmt(fmt) "ACPI: CSRT: " fmt
-
-#include <linux/acpi.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/sizes.h>
-
-ACPI_MODULE_NAME("CSRT");
-
-static int __init acpi_csrt_parse_shared_info(struct platform_device *pdev,
-                                              const struct acpi_csrt_group *grp)
-{
-        const struct acpi_csrt_shared_info *si;
-        struct resource res[3];
-        size_t nres;
-        int ret;
-
-        memset(res, 0, sizeof(res));
-        nres = 0;
-
-        si = (const struct acpi_csrt_shared_info *)&grp[1];
-        /*
-         * The peripherals that are listed on CSRT typically support only
-         * 32-bit addresses so we only use the low part of MMIO base for
-         * now.
-         */
-        if (!si->mmio_base_high && si->mmio_base_low) {
-                /*
-                 * There is no size of the memory resource in shared_info
-                 * so we assume that it is 4k here.
-                 */
-                res[nres].start = si->mmio_base_low;
-                res[nres].end = res[0].start + SZ_4K - 1;
-                res[nres++].flags = IORESOURCE_MEM;
-        }
-
-        if (si->gsi_interrupt) {
-                int irq = acpi_register_gsi(NULL, si->gsi_interrupt,
-                                            si->interrupt_mode,
-                                            si->interrupt_polarity);
-                res[nres].start = irq;
-                res[nres].end = irq;
-                res[nres++].flags = IORESOURCE_IRQ;
-        }
-
-        if (si->base_request_line || si->num_handshake_signals) {
-                /*
-                 * We pass the driver a DMA resource describing the range
-                 * of request lines the device supports.
-                 */
-                res[nres].start = si->base_request_line;
-                res[nres].end = res[nres].start + si->num_handshake_signals - 1;
-                res[nres++].flags = IORESOURCE_DMA;
-        }
-
-        ret = platform_device_add_resources(pdev, res, nres);
-        if (ret) {
-                if (si->gsi_interrupt)
-                        acpi_unregister_gsi(si->gsi_interrupt);
-                return ret;
-        }
-
-        return 0;
-}
-
-static int __init
-acpi_csrt_parse_resource_group(const struct acpi_csrt_group *grp)
-{
-        struct platform_device *pdev;
-        char vendor[5], name[16];
-        int ret, i;
-
-        vendor[0] = grp->vendor_id;
-        vendor[1] = grp->vendor_id >> 8;
-        vendor[2] = grp->vendor_id >> 16;
-        vendor[3] = grp->vendor_id >> 24;
-        vendor[4] = '\0';
-
-        if (grp->shared_info_length != sizeof(struct acpi_csrt_shared_info))
-                return -ENODEV;
-
-        snprintf(name, sizeof(name), "%s%04X", vendor, grp->device_id);
-        pdev = platform_device_alloc(name, PLATFORM_DEVID_AUTO);
-        if (!pdev)
-                return -ENOMEM;
-
-        /* Add resources based on the shared info */
-        ret = acpi_csrt_parse_shared_info(pdev, grp);
-        if (ret)
-                goto fail;
-
-        ret = platform_device_add(pdev);
-        if (ret)
-                goto fail;
-
-        for (i = 0; i < pdev->num_resources; i++)
-                dev_dbg(&pdev->dev, "%pR\n", &pdev->resource[i]);
-
-        return 0;
-
-fail:
-        platform_device_put(pdev);
-        return ret;
-}
-
-/*
- * CSRT or Core System Resources Table is a proprietary ACPI table
- * introduced by Microsoft. This table can contain devices that are not in
- * the system DSDT table. In particular DMA controllers might be described
- * here.
- *
- * We present these devices as normal platform devices that don't have ACPI
- * IDs or handle. The platform device name will be something like
- * <VENDOR><DEVID>.<n>.auto for example: INTL9C06.0.auto.
- */
-void __init acpi_csrt_init(void)
-{
-        struct acpi_csrt_group *grp, *end;
-        struct acpi_table_csrt *csrt;
-        acpi_status status;
-        int ret;
-
-        status = acpi_get_table(ACPI_SIG_CSRT, 0,
-                                (struct acpi_table_header **)&csrt);
-        if (ACPI_FAILURE(status)) {
-                if (status != AE_NOT_FOUND)
-                        pr_warn("failed to get the CSRT table\n");
-                return;
-        }
-
-        pr_debug("parsing CSRT table for devices\n");
-
-        grp = (struct acpi_csrt_group *)(csrt + 1);
-        end = (struct acpi_csrt_group *)((void *)csrt + csrt->header.length);
-
-        while (grp < end) {
-                ret = acpi_csrt_parse_resource_group(grp);
-                if (ret) {
-                        pr_warn("error in parsing resource group: %d\n", ret);
-                        return;
-                }
-
-                grp = (struct acpi_csrt_group *)((void *)grp + grp->length);
-        }
-}
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 96de787e6104..bc493aa3af19 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -37,68 +37,6 @@
 #define _COMPONENT      ACPI_POWER_COMPONENT
 ACPI_MODULE_NAME("device_pm");
 
-static DEFINE_MUTEX(acpi_pm_notifier_lock);
-
-/**
- * acpi_add_pm_notifier - Register PM notifier for given ACPI device.
- * @adev: ACPI device to add the notifier for.
- * @context: Context information to pass to the notifier routine.
- *
- * NOTE: @adev need not be a run-wake or wakeup device to be a valid source of
- * PM wakeup events.  For example, wakeup events may be generated for bridges
- * if one of the devices below the bridge is signaling wakeup, even if the
- * bridge itself doesn't have a wakeup GPE associated with it.
- */
-acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
-                                 acpi_notify_handler handler, void *context)
-{
-        acpi_status status = AE_ALREADY_EXISTS;
-
-        mutex_lock(&acpi_pm_notifier_lock);
-
-        if (adev->wakeup.flags.notifier_present)
-                goto out;
-
-        status = acpi_install_notify_handler(adev->handle,
-                                             ACPI_SYSTEM_NOTIFY,
-                                             handler, context);
-        if (ACPI_FAILURE(status))
-                goto out;
-
-        adev->wakeup.flags.notifier_present = true;
-
- out:
-        mutex_unlock(&acpi_pm_notifier_lock);
-        return status;
-}
-
-/**
- * acpi_remove_pm_notifier - Unregister PM notifier from given ACPI device.
- * @adev: ACPI device to remove the notifier from.
- */
-acpi_status acpi_remove_pm_notifier(struct acpi_device *adev,
-                                    acpi_notify_handler handler)
-{
-        acpi_status status = AE_BAD_PARAMETER;
-
-        mutex_lock(&acpi_pm_notifier_lock);
-
-        if (!adev->wakeup.flags.notifier_present)
-                goto out;
-
-        status = acpi_remove_notify_handler(adev->handle,
-                                            ACPI_SYSTEM_NOTIFY,
-                                            handler);
-        if (ACPI_FAILURE(status))
-                goto out;
-
-        adev->wakeup.flags.notifier_present = false;
-
- out:
-        mutex_unlock(&acpi_pm_notifier_lock);
-        return status;
-}
-
 /**
  * acpi_power_state_string - String representation of ACPI device power state.
  * @state: ACPI device power state to return the string representation of.
@@ -385,6 +323,69 @@ bool acpi_bus_power_manageable(acpi_handle handle)
 }
 EXPORT_SYMBOL(acpi_bus_power_manageable);
 
+#ifdef CONFIG_PM
+static DEFINE_MUTEX(acpi_pm_notifier_lock);
+
+/**
+ * acpi_add_pm_notifier - Register PM notifier for given ACPI device.
+ * @adev: ACPI device to add the notifier for.
+ * @context: Context information to pass to the notifier routine.
+ *
+ * NOTE: @adev need not be a run-wake or wakeup device to be a valid source of
+ * PM wakeup events.  For example, wakeup events may be generated for bridges
+ * if one of the devices below the bridge is signaling wakeup, even if the
+ * bridge itself doesn't have a wakeup GPE associated with it.
+ */
+acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
+                                 acpi_notify_handler handler, void *context)
+{
+        acpi_status status = AE_ALREADY_EXISTS;
+
+        mutex_lock(&acpi_pm_notifier_lock);
+
+        if (adev->wakeup.flags.notifier_present)
+                goto out;
+
+        status = acpi_install_notify_handler(adev->handle,
+                                             ACPI_SYSTEM_NOTIFY,
+                                             handler, context);
+        if (ACPI_FAILURE(status))
+                goto out;
+
+        adev->wakeup.flags.notifier_present = true;
+
+ out:
+        mutex_unlock(&acpi_pm_notifier_lock);
+        return status;
+}
+
+/**
+ * acpi_remove_pm_notifier - Unregister PM notifier from given ACPI device.
+ * @adev: ACPI device to remove the notifier from.
+ */
+acpi_status acpi_remove_pm_notifier(struct acpi_device *adev,
+                                    acpi_notify_handler handler)
+{
+        acpi_status status = AE_BAD_PARAMETER;
+
+        mutex_lock(&acpi_pm_notifier_lock);
+
+        if (!adev->wakeup.flags.notifier_present)
+                goto out;
+
+        status = acpi_remove_notify_handler(adev->handle,
+                                            ACPI_SYSTEM_NOTIFY,
+                                            handler);
+        if (ACPI_FAILURE(status))
+                goto out;
+
+        adev->wakeup.flags.notifier_present = false;
+
+ out:
+        mutex_unlock(&acpi_pm_notifier_lock);
+        return status;
+}
+
 bool acpi_bus_can_wakeup(acpi_handle handle)
 {
         struct acpi_device *device;
@@ -1023,3 +1024,4 @@ void acpi_dev_pm_remove_dependent(acpi_handle handle, struct device *depdev)
         mutex_unlock(&adev->physical_node_lock);
 }
 EXPORT_SYMBOL_GPL(acpi_dev_pm_remove_dependent);
+#endif /* CONFIG_PM */
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d45b2871d33b..edc00818c803 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -223,7 +223,7 @@ static int ec_check_sci_sync(struct acpi_ec *ec, u8 state)
 static int ec_poll(struct acpi_ec *ec)
 {
         unsigned long flags;
-        int repeat = 2; /* number of command restarts */
+        int repeat = 5; /* number of command restarts */
         while (repeat--) {
                 unsigned long delay = jiffies +
                         msecs_to_jiffies(ec_delay);
@@ -241,8 +241,6 @@ static int ec_poll(struct acpi_ec *ec)
                         }
                         advance_transaction(ec, acpi_ec_read_status(ec));
                 } while (time_before(jiffies, delay));
-                if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
-                        break;
                 pr_debug(PREFIX "controller reset, restart transaction\n");
                 spin_lock_irqsave(&ec->lock, flags);
                 start_transaction(ec);
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 6f1afd9118c8..297cbf456f86 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -35,7 +35,6 @@ void acpi_pci_link_init(void);
 void acpi_pci_root_hp_init(void);
 void acpi_platform_init(void);
 int acpi_sysfs_init(void);
-void acpi_csrt_init(void);
 #ifdef CONFIG_ACPI_CONTAINER
 void acpi_container_init(void);
 #else
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 1dd6f6c85874..e427dc516c76 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -641,7 +641,9 @@ static void _handle_hotplug_event_root(struct work_struct *work)
                 /* bus enumerate */
                 printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__,
                                  (char *)buffer.pointer);
-                if (!root)
+                if (root)
+                        acpiphp_check_host_bridge(handle);
+                else
                         handle_root_bridge_insertion(handle);
 
                 break;
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index bec717ffd25f..c266cdc11784 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -95,9 +95,6 @@ static const struct acpi_device_id processor_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, processor_device_ids);
 
-static SIMPLE_DEV_PM_OPS(acpi_processor_pm,
-                         acpi_processor_suspend, acpi_processor_resume);
-
 static struct acpi_driver acpi_processor_driver = {
         .name = "processor",
         .class = ACPI_PROCESSOR_CLASS,
@@ -107,7 +104,6 @@ static struct acpi_driver acpi_processor_driver = {
                 .remove = acpi_processor_remove,
                 .notify = acpi_processor_notify,
                 },
-        .drv.pm = &acpi_processor_pm,
 };
 
 #define INSTALL_NOTIFY_HANDLER          1
@@ -934,6 +930,8 @@ static int __init acpi_processor_init(void)
         if (result < 0)
                 return result;
 
+        acpi_processor_syscore_init();
+
         acpi_processor_install_hotplug_notify();
 
         acpi_thermal_cpufreq_init();
@@ -956,6 +954,8 @@ static void __exit acpi_processor_exit(void)
 
         acpi_processor_uninstall_hotplug_notify();
 
+        acpi_processor_syscore_exit();
+
         acpi_bus_unregister_driver(&acpi_processor_driver);
 
         return;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f0df2c9434d2..eb133c77aadb 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -34,6 +34,7 @@
 #include <linux/sched.h>       /* need_resched() */
 #include <linux/clockchips.h>
 #include <linux/cpuidle.h>
+#include <linux/syscore_ops.h>
 
 /*
  * Include the apic definitions for x86 to have the APIC timer related defines
@@ -210,33 +211,41 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr,
 
 #endif
 
+#ifdef CONFIG_PM_SLEEP
 static u32 saved_bm_rld;
 
-static void acpi_idle_bm_rld_save(void)
+int acpi_processor_suspend(void)
 {
         acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &saved_bm_rld);
+        return 0;
 }
-static void acpi_idle_bm_rld_restore(void)
+
+void acpi_processor_resume(void)
 {
         u32 resumed_bm_rld;
 
         acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld);
+        if (resumed_bm_rld == saved_bm_rld)
+                return;
 
-        if (resumed_bm_rld != saved_bm_rld)
-                acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld);
+        acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld);
 }
 
-int acpi_processor_suspend(struct device *dev)
+static struct syscore_ops acpi_processor_syscore_ops = {
+        .suspend = acpi_processor_suspend,
+        .resume = acpi_processor_resume,
+};
+
+void acpi_processor_syscore_init(void)
 {
-        acpi_idle_bm_rld_save();
-        return 0;
+        register_syscore_ops(&acpi_processor_syscore_ops);
 }
 
-int acpi_processor_resume(struct device *dev)
+void acpi_processor_syscore_exit(void)
 {
-        acpi_idle_bm_rld_restore();
-        return 0;
+        unregister_syscore_ops(&acpi_processor_syscore_ops);
 }
+#endif /* CONFIG_PM_SLEEP */
 
 #if defined(CONFIG_X86)
 static void tsc_check_state(int state)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index fe158fd4f1df..44225cb15f3a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1785,7 +1785,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type)
         acpi_set_pnp_ids(handle, &pnp, type);
 
         if (!pnp.type.hardware_id)
-                return;
+                goto out;
 
         /*
          * This relies on the fact that acpi_install_notify_handler() will not
@@ -1800,6 +1800,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type)
                 }
         }
 
+out:
         acpi_free_pnp_ids(&pnp);
 }
 
@@ -2042,7 +2043,6 @@ int __init acpi_scan_init(void)
         acpi_pci_link_init();
         acpi_platform_init();
         acpi_lpss_init();
-        acpi_csrt_init();
         acpi_container_init();
         acpi_memory_hotplug_init();
 
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index c3932d0876e0..5b32e15a65ce 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -456,6 +456,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
                 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
                 },
         },
+        {
+         .callback = video_ignore_initial_backlight,
+         .ident = "HP 1000 Notebook PC",
+         .matches = {
+                DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+                DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
+                },
+        },
         {}
 };
 
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 66f67626f02e..e6bd910bc6ed 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -161,6 +161,14 @@ static struct dmi_system_id video_detect_dmi_table[] = {
                 DMI_MATCH(DMI_PRODUCT_NAME, "UL30VT"),
                 },
         },
+        {
+        .callback = video_detect_force_vendor,
+        .ident = "Asus UL30A",
+        .matches = {
+                DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+                DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
+                },
+        },
         { },
 };
 
diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index c1bfaf43d109..980b88e109fc 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -933,11 +933,6 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
         }
 
         mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!mem_res) {
-                err = -ENXIO;
-                goto err_rel_gpio;
-        }
-
         ide_base = devm_ioremap_resource(&pdev->dev, mem_res);
         if (IS_ERR(ide_base)) {
                 err = PTR_ERR(ide_base);
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 1a68f947ded8..d414331b480e 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -1295,6 +1295,7 @@ int subsys_virtual_register(struct bus_type *subsys,
 
         return subsys_register(subsys, groups, virtual_dir);
 }
+EXPORT_SYMBOL_GPL(subsys_virtual_register);
 
 int __init buses_init(void)
 {
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 016312437577..2499cefdcdf2 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -572,9 +572,11 @@ int device_create_file(struct device *dev,
 
         if (dev) {
                 WARN(((attr->attr.mode & S_IWUGO) && !attr->store),
-                                "Write permission without 'store'\n");
+                        "Attribute %s: write permission without 'store'\n",
+                        attr->attr.name);
                 WARN(((attr->attr.mode & S_IRUGO) && !attr->show),
-                                "Read permission without 'show'\n");
+                        "Attribute %s: read permission without 'show'\n",
+                        attr->attr.name);
                 error = sysfs_create_file(&dev->kobj, &attr->attr);
         }
 
diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c
index 39c32529b833..5da914041305 100644
--- a/drivers/base/power/common.c
+++ b/drivers/base/power/common.c
@@ -61,24 +61,24 @@ EXPORT_SYMBOL_GPL(dev_pm_get_subsys_data);
 int dev_pm_put_subsys_data(struct device *dev)
 {
         struct pm_subsys_data *psd;
-        int ret = 0;
+        int ret = 1;
 
         spin_lock_irq(&dev->power.lock);
 
         psd = dev_to_psd(dev);
-        if (!psd) {
-                ret = -EINVAL;
+        if (!psd)
                 goto out;
-        }
 
         if (--psd->refcount == 0) {
                 dev->power.subsys_data = NULL;
-                kfree(psd);
-                ret = 1;
+        } else {
+                psd = NULL;
+                ret = 0;
         }
 
  out:
         spin_unlock_irq(&dev->power.lock);
+        kfree(psd);
 
         return ret;
 }
diff --git a/drivers/bcma/scan.c b/drivers/bcma/scan.c
index bca9c80056fe..8bffa5c9818c 100644
--- a/drivers/bcma/scan.c
+++ b/drivers/bcma/scan.c
@@ -84,6 +84,8 @@ static const struct bcma_device_id_name bcma_bcm_device_names[] = {
         { BCMA_CORE_I2S, "I2S" },
         { BCMA_CORE_SDR_DDR1_MEM_CTL, "SDR/DDR1 Memory Controller" },
         { BCMA_CORE_SHIM, "SHIM" },
+        { BCMA_CORE_PCIE2, "PCIe Gen2" },
+        { BCMA_CORE_ARM_CR4, "ARM CR4" },
         { BCMA_CORE_DEFAULT, "Default" },
 };
 
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index f1a29f8e9d33..9bf4371755f2 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -117,13 +117,13 @@ static struct page *brd_insert_page(struct brd_device *brd, sector_t sector)
 
         spin_lock(&brd->brd_lock);
         idx = sector >> PAGE_SECTORS_SHIFT;
+        page->index = idx;
         if (radix_tree_insert(&brd->brd_pages, idx, page)) {
                 __free_page(page);
                 page = radix_tree_lookup(&brd->brd_pages, idx);
                 BUG_ON(!page);
                 BUG_ON(page->index != idx);
-        } else
-                page->index = idx;
+        }
         spin_unlock(&brd->brd_lock);
 
         radix_tree_preload_end();
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index ca63104136e0..d6d314027b5d 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -55,6 +55,39 @@
 #define SECTOR_SHIFT    9
 #define SECTOR_SIZE     (1ULL << SECTOR_SHIFT)
 
+/*
+ * Increment the given counter and return its updated value.
+ * If the counter is already 0 it will not be incremented.
+ * If the counter is already at its maximum value returns
+ * -EINVAL without updating it.
+ */
+static int atomic_inc_return_safe(atomic_t *v)
+{
+        unsigned int counter;
+
+        counter = (unsigned int)__atomic_add_unless(v, 1, 0);
+        if (counter <= (unsigned int)INT_MAX)
+                return (int)counter;
+
+        atomic_dec(v);
+
+        return -EINVAL;
+}
+
+/* Decrement the counter.  Return the resulting value, or -EINVAL */
+static int atomic_dec_return_safe(atomic_t *v)
+{
+        int counter;
+
+        counter = atomic_dec_return(v);
+        if (counter >= 0)
+                return counter;
+
+        atomic_inc(v);
+
+        return -EINVAL;
+}
+
 #define RBD_DRV_NAME "rbd"
 #define RBD_DRV_NAME_LONG "rbd (rados block device)"
 
@@ -100,21 +133,20 @@
  * block device image metadata (in-memory version)
  */
 struct rbd_image_header {
-        /* These four fields never change for a given rbd image */
+        /* These six fields never change for a given rbd image */
         char *object_prefix;
-        u64 features;
         __u8 obj_order;
         __u8 crypt_type;
         __u8 comp_type;
+        u64 stripe_unit;
+        u64 stripe_count;
+        u64 features;           /* Might be changeable someday? */
 
         /* The remaining fields need to be updated occasionally */
         u64 image_size;
         struct ceph_snap_context *snapc;
-        char *snap_names;
-        u64 *snap_sizes;
-
-        u64 stripe_unit;
-        u64 stripe_count;
+        char *snap_names;       /* format 1 only */
+        u64 *snap_sizes;        /* format 1 only */
 };
 
 /*
@@ -225,6 +257,7 @@ struct rbd_obj_request {
                 };
         };
         struct page             **copyup_pages;
+        u32                     copyup_page_count;
 
         struct ceph_osd_request *osd_req;
 
@@ -257,6 +290,7 @@ struct rbd_img_request {
                 struct rbd_obj_request  *obj_request;   /* obj req initiator */
         };
         struct page             **copyup_pages;
+        u32                     copyup_page_count;
         spinlock_t              completion_lock;/* protects next_completion */
         u32                     next_completion;
         rbd_img_callback_t      callback;
@@ -311,6 +345,7 @@ struct rbd_device {
 
         struct rbd_spec         *parent_spec;
         u64                     parent_overlap;
+        atomic_t                parent_ref;
         struct rbd_device       *parent;
 
         /* protects updating the header */
@@ -359,7 +394,8 @@ static ssize_t rbd_add(struct bus_type *bus, const char *buf,
                        size_t count);
 static ssize_t rbd_remove(struct bus_type *bus, const char *buf,
                           size_t count);
-static int rbd_dev_image_probe(struct rbd_device *rbd_dev);
+static int rbd_dev_image_probe(struct rbd_device *rbd_dev, bool mapping);
+static void rbd_spec_put(struct rbd_spec *spec);
 
 static struct bus_attribute rbd_bus_attrs[] = {
         __ATTR(add, S_IWUSR, NULL, rbd_add),
@@ -426,7 +462,8 @@ static void rbd_img_parent_read(struct rbd_obj_request *obj_request);
 static void rbd_dev_remove_parent(struct rbd_device *rbd_dev);
 
 static int rbd_dev_refresh(struct rbd_device *rbd_dev);
-static int rbd_dev_v2_refresh(struct rbd_device *rbd_dev);
+static int rbd_dev_v2_header_onetime(struct rbd_device *rbd_dev);
+static int rbd_dev_v2_header_info(struct rbd_device *rbd_dev);
 static const char *rbd_dev_v2_snap_name(struct rbd_device *rbd_dev,
                                         u64 snap_id);
 static int _rbd_dev_v2_snap_size(struct rbd_device *rbd_dev, u64 snap_id,
@@ -726,88 +763,123 @@ static bool rbd_dev_ondisk_valid(struct rbd_image_header_ondisk *ondisk)
 }
 
 /*
- * Create a new header structure, translate header format from the on-disk
- * header.
+ * Fill an rbd image header with information from the given format 1
+ * on-disk header.
  */
-static int rbd_header_from_disk(struct rbd_image_header *header,
+static int rbd_header_from_disk(struct rbd_device *rbd_dev,
                                  struct rbd_image_header_ondisk *ondisk)
 {
+        struct rbd_image_header *header = &rbd_dev->header;
+        bool first_time = header->object_prefix == NULL;
+        struct ceph_snap_context *snapc;
+        char *object_prefix = NULL;
+        char *snap_names = NULL;
+        u64 *snap_sizes = NULL;
         u32 snap_count;
-        size_t len;
         size_t size;
+        int ret = -ENOMEM;
         u32 i;
 
-        memset(header, 0, sizeof (*header));
+        /* Allocate this now to avoid having to handle failure below */
 
-        snap_count = le32_to_cpu(ondisk->snap_count);
+        if (first_time) {
+                size_t len;
 
-        len = strnlen(ondisk->object_prefix, sizeof (ondisk->object_prefix));
-        header->object_prefix = kmalloc(len + 1, GFP_KERNEL);
-        if (!header->object_prefix)
-                return -ENOMEM;
-        memcpy(header->object_prefix, ondisk->object_prefix, len);
-        header->object_prefix[len] = '\0';
+                len = strnlen(ondisk->object_prefix,
+                                sizeof (ondisk->object_prefix));
+                object_prefix = kmalloc(len + 1, GFP_KERNEL);
+                if (!object_prefix)
+                        return -ENOMEM;
+                memcpy(object_prefix, ondisk->object_prefix, len);
+                object_prefix[len] = '\0';
+        }
 
+        /* Allocate the snapshot context and fill it in */
+
+        snap_count = le32_to_cpu(ondisk->snap_count);
+        snapc = ceph_create_snap_context(snap_count, GFP_KERNEL);
+        if (!snapc)
+                goto out_err;
+        snapc->seq = le64_to_cpu(ondisk->snap_seq);
         if (snap_count) {
+                struct rbd_image_snap_ondisk *snaps;
                 u64 snap_names_len = le64_to_cpu(ondisk->snap_names_len);
 
-                /* Save a copy of the snapshot names */
+                /* We'll keep a copy of the snapshot names... */
 
-                if (snap_names_len > (u64) SIZE_MAX)
-                        return -EIO;
-                header->snap_names = kmalloc(snap_names_len, GFP_KERNEL);
-                if (!header->snap_names)
+                if (snap_names_len > (u64)SIZE_MAX)
+                        goto out_2big;
+                snap_names = kmalloc(snap_names_len, GFP_KERNEL);
+                if (!snap_names)
                         goto out_err;
+
+                /* ...as well as the array of their sizes. */
+
+                size = snap_count * sizeof (*header->snap_sizes);
+                snap_sizes = kmalloc(size, GFP_KERNEL);
+                if (!snap_sizes)
+                        goto out_err;
+
                 /*
-                 * Note that rbd_dev_v1_header_read() guarantees
-                 * the ondisk buffer we're working with has
+                 * Copy the names, and fill in each snapshot's id
+                 * and size.
+                 *
+                 * Note that rbd_dev_v1_header_info() guarantees the
+                 * ondisk buffer we're working with has
                  * snap_names_len bytes beyond the end of the
                  * snapshot id array, this memcpy() is safe.
                  */
-                memcpy(header->snap_names, &ondisk->snaps[snap_count],
-                        snap_names_len);
+                memcpy(snap_names, &ondisk->snaps[snap_count], snap_names_len);
+                snaps = ondisk->snaps;
+                for (i = 0; i < snap_count; i++) {
+                        snapc->snaps[i] = le64_to_cpu(snaps[i].id);
+                        snap_sizes[i] = le64_to_cpu(snaps[i].image_size);
+                }
+        }
 
-                /* Record each snapshot's size */
+        /* We won't fail any more, fill in the header */
 
-                size = snap_count * sizeof (*header->snap_sizes);
-                header->snap_sizes = kmalloc(size, GFP_KERNEL);
-                if (!header->snap_sizes)
-                        goto out_err;
-                for (i = 0; i < snap_count; i++)
-                        header->snap_sizes[i] =
-                                le64_to_cpu(ondisk->snaps[i].image_size);
+        down_write(&rbd_dev->header_rwsem);
+        if (first_time) {
+                header->object_prefix = object_prefix;
+                header->obj_order = ondisk->options.order;
+                header->crypt_type = ondisk->options.crypt_type;
+                header->comp_type = ondisk->options.comp_type;
+                /* The rest aren't used for format 1 images */
+                header->stripe_unit = 0;
+                header->stripe_count = 0;
+                header->features = 0;
         } else {
-                header->snap_names = NULL;
-                header->snap_sizes = NULL;
+                ceph_put_snap_context(header->snapc);
+                kfree(header->snap_names);
+                kfree(header->snap_sizes);
         }
 
-        header->features = 0;   /* No features support in v1 images */
-        header->obj_order = ondisk->options.order;
-        header->crypt_type = ondisk->options.crypt_type;
-        header->comp_type = ondisk->options.comp_type;
-
-        /* Allocate and fill in the snapshot context */
+        /* The remaining fields always get updated (when we refresh) */
 
         header->image_size = le64_to_cpu(ondisk->image_size);
+        header->snapc = snapc;
+        header->snap_names = snap_names;
+        header->snap_sizes = snap_sizes;
 
-        header->snapc = ceph_create_snap_context(snap_count, GFP_KERNEL);
-        if (!header->snapc)
-                goto out_err;
-        header->snapc->seq = le64_to_cpu(ondisk->snap_seq);
-        for (i = 0; i < snap_count; i++)
-                header->snapc->snaps[i] = le64_to_cpu(ondisk->snaps[i].id);
+        /* Make sure mapping size is consistent with header info */
 
-        return 0;
+        if (rbd_dev->spec->snap_id == CEPH_NOSNAP || first_time)
+                if (rbd_dev->mapping.size != header->image_size)
+                        rbd_dev->mapping.size = header->image_size;
+
+        up_write(&rbd_dev->header_rwsem);
 
+        return 0;
+out_2big:
+        ret = -EIO;
 out_err:
-        kfree(header->snap_sizes);
-        header->snap_sizes = NULL;
-        kfree(header->snap_names);
-        header->snap_names = NULL;
-        kfree(header->object_prefix);
-        header->object_prefix = NULL;
+        kfree(snap_sizes);
+        kfree(snap_names);
+        ceph_put_snap_context(snapc);
+        kfree(object_prefix);
 
-        return -ENOMEM;
+        return ret;
 }
 
 static const char *_rbd_dev_v1_snap_name(struct rbd_device *rbd_dev, u32 which)
@@ -934,20 +1006,11 @@ static int rbd_snap_features(struct rbd_device *rbd_dev, u64 snap_id,
 
 static int rbd_dev_mapping_set(struct rbd_device *rbd_dev)
 {
-        const char *snap_name = rbd_dev->spec->snap_name;
-        u64 snap_id;
+        u64 snap_id = rbd_dev->spec->snap_id;
         u64 size = 0;
         u64 features = 0;
         int ret;
 
-        if (strcmp(snap_name, RBD_SNAP_HEAD_NAME)) {
-                snap_id = rbd_snap_id_by_name(rbd_dev, snap_name);
-                if (snap_id == CEPH_NOSNAP)
-                        return -ENOENT;
-        } else {
-                snap_id = CEPH_NOSNAP;
-        }
-
         ret = rbd_snap_size(rbd_dev, snap_id, &size);
         if (ret)
                 return ret;
@@ -958,11 +1021,6 @@ static int rbd_dev_mapping_set(struct rbd_device *rbd_dev)
         rbd_dev->mapping.size = size;
         rbd_dev->mapping.features = features;
 
-        /* If we are mapping a snapshot it must be marked read-only */
-
-        if (snap_id != CEPH_NOSNAP)
-                rbd_dev->mapping.read_only = true;
-
         return 0;
 }
 
@@ -970,14 +1028,6 @@ static void rbd_dev_mapping_clear(struct rbd_device *rbd_dev)
 {
         rbd_dev->mapping.size = 0;
         rbd_dev->mapping.features = 0;
-        rbd_dev->mapping.read_only = true;
-}
-
-static void rbd_dev_clear_mapping(struct rbd_device *rbd_dev)
-{
-        rbd_dev->mapping.size = 0;
-        rbd_dev->mapping.features = 0;
-        rbd_dev->mapping.read_only = true;
 }
 
 static const char *rbd_segment_name(struct rbd_device *rbd_dev, u64 offset)
@@ -1342,20 +1392,18 @@ static void rbd_obj_request_put(struct rbd_obj_request *obj_request)
         kref_put(&obj_request->kref, rbd_obj_request_destroy);
 }
 
-static void rbd_img_request_get(struct rbd_img_request *img_request)
-{
-        dout("%s: img %p (was %d)\n", __func__, img_request,
-                atomic_read(&img_request->kref.refcount));
-        kref_get(&img_request->kref);
-}
-
+static bool img_request_child_test(struct rbd_img_request *img_request);
+static void rbd_parent_request_destroy(struct kref *kref);
 static void rbd_img_request_destroy(struct kref *kref);
 static void rbd_img_request_put(struct rbd_img_request *img_request)
 {
         rbd_assert(img_request != NULL);
         dout("%s: img %p (was %d)\n", __func__, img_request,
                 atomic_read(&img_request->kref.refcount));
-        kref_put(&img_request->kref, rbd_img_request_destroy);
+        if (img_request_child_test(img_request))
+                kref_put(&img_request->kref, rbd_parent_request_destroy);
+        else
+                kref_put(&img_request->kref, rbd_img_request_destroy);
 }
 
 static inline void rbd_img_obj_request_add(struct rbd_img_request *img_request,
@@ -1472,6 +1520,12 @@ static void img_request_child_set(struct rbd_img_request *img_request)
         smp_mb();
 }
 
+static void img_request_child_clear(struct rbd_img_request *img_request)
+{
+        clear_bit(IMG_REQ_CHILD, &img_request->flags);
+        smp_mb();
+}
+
 static bool img_request_child_test(struct rbd_img_request *img_request)
 {
         smp_mb();
@@ -1484,6 +1538,12 @@ static void img_request_layered_set(struct rbd_img_request *img_request)
         smp_mb();
 }
 
+static void img_request_layered_clear(struct rbd_img_request *img_request)
+{
+        clear_bit(IMG_REQ_LAYERED, &img_request->flags);
+        smp_mb();
+}
+
 static bool img_request_layered_test(struct rbd_img_request *img_request)
 {
         smp_mb();
@@ -1827,6 +1887,74 @@ static void rbd_obj_request_destroy(struct kref *kref)
         kmem_cache_free(rbd_obj_request_cache, obj_request);
 }
 
+/* It's OK to call this for a device with no parent */
+
+static void rbd_spec_put(struct rbd_spec *spec);
+static void rbd_dev_unparent(struct rbd_device *rbd_dev)
+{
+        rbd_dev_remove_parent(rbd_dev);
+        rbd_spec_put(rbd_dev->parent_spec);
+        rbd_dev->parent_spec = NULL;
+        rbd_dev->parent_overlap = 0;
+}
+
+/*
+ * Parent image reference counting is used to determine when an
+ * image's parent fields can be safely torn down--after there are no
+ * more in-flight requests to the parent image.  When the last
+ * reference is dropped, cleaning them up is safe.
+ */
+static void rbd_dev_parent_put(struct rbd_device *rbd_dev)
+{
+        int counter;
+
+        if (!rbd_dev->parent_spec)
+                return;
+
+        counter = atomic_dec_return_safe(&rbd_dev->parent_ref);
+        if (counter > 0)
+                return;
+
+        /* Last reference; clean up parent data structures */
+
+        if (!counter)
+                rbd_dev_unparent(rbd_dev);
+        else
+                rbd_warn(rbd_dev, "parent reference underflow\n");
+}
+
+/*
+ * If an image has a non-zero parent overlap, get a reference to its
+ * parent.
+ *
+ * We must get the reference before checking for the overlap to
+ * coordinate properly with zeroing the parent overlap in
+ * rbd_dev_v2_parent_info() when an image gets flattened.  We
+ * drop it again if there is no overlap.
+ *
+ * Returns true if the rbd device has a parent with a non-zero
+ * overlap and a reference for it was successfully taken, or
+ * false otherwise.
+ */
+static bool rbd_dev_parent_get(struct rbd_device *rbd_dev)
+{
+        int counter;
+
+        if (!rbd_dev->parent_spec)
+                return false;
+
+        counter = atomic_inc_return_safe(&rbd_dev->parent_ref);
+        if (counter > 0 && rbd_dev->parent_overlap)
+                return true;
+
+        /* Image was flattened, but parent is not yet torn down */
+
+        if (counter < 0)
+                rbd_warn(rbd_dev, "parent reference overflow\n");
+
+        return false;
+}
+
 /*
  * Caller is responsible for filling in the list of object requests
  * that comprises the image request, and the Linux request pointer
@@ -1835,8 +1963,7 @@ static void rbd_obj_request_destroy(struct kref *kref)
 static struct rbd_img_request *rbd_img_request_create(
                                         struct rbd_device *rbd_dev,
                                         u64 offset, u64 length,
-                                        bool write_request,
-                                        bool child_request)
+                                        bool write_request)
 {
         struct rbd_img_request *img_request;
 
@@ -1861,9 +1988,7 @@ static struct rbd_img_request *rbd_img_request_create(
         } else {
                 img_request->snap_id = rbd_dev->spec->snap_id;
         }
-        if (child_request)
-                img_request_child_set(img_request);
-        if (rbd_dev->parent_spec)
+        if (rbd_dev_parent_get(rbd_dev))
                 img_request_layered_set(img_request);
         spin_lock_init(&img_request->completion_lock);
         img_request->next_completion = 0;
@@ -1873,9 +1998,6 @@ static struct rbd_img_request *rbd_img_request_create(
         INIT_LIST_HEAD(&img_request->obj_requests);
         kref_init(&img_request->kref);
 
-        rbd_img_request_get(img_request);       /* Avoid a warning */
-        rbd_img_request_put(img_request);       /* TEMPORARY */
-
         dout("%s: rbd_dev %p %s %llu/%llu -> img %p\n", __func__, rbd_dev,
                 write_request ? "write" : "read", offset, length,
                 img_request);
@@ -1897,15 +2019,54 @@ static void rbd_img_request_destroy(struct kref *kref)
                 rbd_img_obj_request_del(img_request, obj_request);
         rbd_assert(img_request->obj_request_count == 0);
 
+        if (img_request_layered_test(img_request)) {
+                img_request_layered_clear(img_request);
+                rbd_dev_parent_put(img_request->rbd_dev);
+        }
+
         if (img_request_write_test(img_request))
                 ceph_put_snap_context(img_request->snapc);
 
-        if (img_request_child_test(img_request))
-                rbd_obj_request_put(img_request->obj_request);
-
         kmem_cache_free(rbd_img_request_cache, img_request);
 }
 
+static struct rbd_img_request *rbd_parent_request_create(
+                                        struct rbd_obj_request *obj_request,
+                                        u64 img_offset, u64 length)
+{
+        struct rbd_img_request *parent_request;
+        struct rbd_device *rbd_dev;
+
+        rbd_assert(obj_request->img_request);
+        rbd_dev = obj_request->img_request->rbd_dev;
+
+        parent_request = rbd_img_request_create(rbd_dev->parent,
+                                                img_offset, length, false);
+        if (!parent_request)
+                return NULL;
+
+        img_request_child_set(parent_request);
+        rbd_obj_request_get(obj_request);
+        parent_request->obj_request = obj_request;
+
+        return parent_request;
+}
+
+static void rbd_parent_request_destroy(struct kref *kref)
+{
+        struct rbd_img_request *parent_request;
+        struct rbd_obj_request *orig_request;
+
+        parent_request = container_of(kref, struct rbd_img_request, kref);
+        orig_request = parent_request->obj_request;
+
+        parent_request->obj_request = NULL;
+        rbd_obj_request_put(orig_request);
+        img_request_child_clear(parent_request);
+
+        rbd_img_request_destroy(kref);
+}
+
 static bool rbd_img_obj_end_request(struct rbd_obj_request *obj_request)
 {
         struct rbd_img_request *img_request;
@@ -2114,7 +2275,7 @@ rbd_img_obj_copyup_callback(struct rbd_obj_request *obj_request)
 {
         struct rbd_img_request *img_request;
         struct rbd_device *rbd_dev;
-        u64 length;
+        struct page **pages;
         u32 page_count;
 
         rbd_assert(obj_request->type == OBJ_REQUEST_BIO);
@@ -2124,12 +2285,14 @@ rbd_img_obj_copyup_callback(struct rbd_obj_request *obj_request)
 
         rbd_dev = img_request->rbd_dev;
         rbd_assert(rbd_dev);
-        length = (u64)1 << rbd_dev->header.obj_order;
-        page_count = (u32)calc_pages_for(0, length);
 
-        rbd_assert(obj_request->copyup_pages);
-        ceph_release_page_vector(obj_request->copyup_pages, page_count);
+        pages = obj_request->copyup_pages;
+        rbd_assert(pages != NULL);
         obj_request->copyup_pages = NULL;
+        page_count = obj_request->copyup_page_count;
+        rbd_assert(page_count);
+        obj_request->copyup_page_count = 0;
+        ceph_release_page_vector(pages, page_count);
 
         /*
          * We want the transfer count to reflect the size of the
@@ -2153,9 +2316,11 @@ rbd_img_obj_parent_read_full_callback(struct rbd_img_request *img_request)
         struct ceph_osd_client *osdc;
         struct rbd_device *rbd_dev;
         struct page **pages;
-        int result;
-        u64 obj_size;
-        u64 xferred;
+        u32 page_count;
+        int img_result;
+        u64 parent_length;
+        u64 offset;
+        u64 length;
 
         rbd_assert(img_request_child_test(img_request));
 
@@ -2164,46 +2329,74 @@ rbd_img_obj_parent_read_full_callback(struct rbd_img_request *img_request)
         pages = img_request->copyup_pages;
         rbd_assert(pages != NULL);
         img_request->copyup_pages = NULL;
+        page_count = img_request->copyup_page_count;
+        rbd_assert(page_count);
+        img_request->copyup_page_count = 0;
 
         orig_request = img_request->obj_request;
         rbd_assert(orig_request != NULL);
-        rbd_assert(orig_request->type == OBJ_REQUEST_BIO);
-        result = img_request->result;
-        obj_size = img_request->length;
-        xferred = img_request->xferred;
+        rbd_assert(obj_request_type_valid(orig_request->type));
+        img_result = img_request->result;
+        parent_length = img_request->length;
+        rbd_assert(parent_length == img_request->xferred);
+        rbd_img_request_put(img_request);
 
-        rbd_dev = img_request->rbd_dev;
+        rbd_assert(orig_request->img_request);
+        rbd_dev = orig_request->img_request->rbd_dev;
         rbd_assert(rbd_dev);
-        rbd_assert(obj_size == (u64)1 << rbd_dev->header.obj_order);
 
-        rbd_img_request_put(img_request);
+        /*
+         * If the overlap has become 0 (most likely because the
+         * image has been flattened) we need to free the pages
+         * and re-submit the original write request.
+         */
+        if (!rbd_dev->parent_overlap) {
+                struct ceph_osd_client *osdc;
 
-        if (result)
-                goto out_err;
+                ceph_release_page_vector(pages, page_count);
+                osdc = &rbd_dev->rbd_client->client->osdc;
+                img_result = rbd_obj_request_submit(osdc, orig_request);
+                if (!img_result)
+                        return;
+        }
 
-        /* Allocate the new copyup osd request for the original request */
+        if (img_result)
+                goto out_err;
 
-        result = -ENOMEM;
-        rbd_assert(!orig_request->osd_req);
+        /*
+         * The original osd request is of no use to use any more.
+         * We need a new one that can hold the two ops in a copyup
+         * request.  Allocate the new copyup osd request for the
+         * original request, and release the old one.
+         */
+        img_result = -ENOMEM;
         osd_req = rbd_osd_req_create_copyup(orig_request);
         if (!osd_req)
                 goto out_err;
+        rbd_osd_req_destroy(orig_request->osd_req);
         orig_request->osd_req = osd_req;
         orig_request->copyup_pages = pages;
+        orig_request->copyup_page_count = page_count;
 
         /* Initialize the copyup op */
 
         osd_req_op_cls_init(osd_req, 0, CEPH_OSD_OP_CALL, "rbd", "copyup");
-        osd_req_op_cls_request_data_pages(osd_req, 0, pages, obj_size, 0,
+        osd_req_op_cls_request_data_pages(osd_req, 0, pages, parent_length, 0,
                                                 false, false);
 
         /* Then the original write request op */
 
+        offset = orig_request->offset;
+        length = orig_request->length;
         osd_req_op_extent_init(osd_req, 1, CEPH_OSD_OP_WRITE,
-                                        orig_request->offset,
-                                        orig_request->length, 0, 0);
-        osd_req_op_extent_osd_data_bio(osd_req, 1, orig_request->bio_list,
-                                        orig_request->length);
+                                        offset, length, 0, 0);
+        if (orig_request->type == OBJ_REQUEST_BIO)
+                osd_req_op_extent_osd_data_bio(osd_req, 1,
+                                        orig_request->bio_list, length);
+        else
+                osd_req_op_extent_osd_data_pages(osd_req, 1,
+                                        orig_request->pages, length,
+                                        offset & ~PAGE_MASK, false, false);
 
         rbd_osd_req_format_write(orig_request);
 
@@ -2211,13 +2404,13 @@ rbd_img_obj_parent_read_full_callback(struct rbd_img_request *img_request)
 
         orig_request->callback = rbd_img_obj_copyup_callback;
         osdc = &rbd_dev->rbd_client->client->osdc;
-        result = rbd_obj_request_submit(osdc, orig_request);
-        if (!result)
+        img_result = rbd_obj_request_submit(osdc, orig_request);
+        if (!img_result)
                 return;
 out_err:
         /* Record the error code and complete the request */
 
-        orig_request->result = result;
+        orig_request->result = img_result;
         orig_request->xferred = 0;
         obj_request_done_set(orig_request);
         rbd_obj_request_complete(orig_request);
@@ -2249,7 +2442,7 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
         int result;
 
         rbd_assert(obj_request_img_data_test(obj_request));
-        rbd_assert(obj_request->type == OBJ_REQUEST_BIO);
+        rbd_assert(obj_request_type_valid(obj_request->type));
 
         img_request = obj_request->img_request;
         rbd_assert(img_request != NULL);
@@ -2257,15 +2450,6 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
         rbd_assert(rbd_dev->parent != NULL);
 
         /*
-         * First things first.  The original osd request is of no
-         * use to use any more, we'll need a new one that can hold
-         * the two ops in a copyup request.  We'll get that later,
-         * but for now we can release the old one.
-         */
-        rbd_osd_req_destroy(obj_request->osd_req);
-        obj_request->osd_req = NULL;
-
-        /*
          * Determine the byte range covered by the object in the
          * child image to which the original request was to be sent.
          */
@@ -2295,18 +2479,16 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
         }
 
         result = -ENOMEM;
-        parent_request = rbd_img_request_create(rbd_dev->parent,
-                                                img_offset, length,
-                                                false, true);
+        parent_request = rbd_parent_request_create(obj_request,
+                                                img_offset, length);
         if (!parent_request)
                 goto out_err;
-        rbd_obj_request_get(obj_request);
-        parent_request->obj_request = obj_request;
 
         result = rbd_img_request_fill(parent_request, OBJ_REQUEST_PAGES, pages);
         if (result)
                 goto out_err;
         parent_request->copyup_pages = pages;
+        parent_request->copyup_page_count = page_count;
 
         parent_request->callback = rbd_img_obj_parent_read_full_callback;
         result = rbd_img_request_submit(parent_request);
@@ -2314,6 +2496,7 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
                 return 0;
 
         parent_request->copyup_pages = NULL;
+        parent_request->copyup_page_count = 0;
         parent_request->obj_request = NULL;
         rbd_obj_request_put(obj_request);
 out_err:
@@ -2331,6 +2514,7 @@ out_err:
 static void rbd_img_obj_exists_callback(struct rbd_obj_request *obj_request)
 {
         struct rbd_obj_request *orig_request;
+        struct rbd_device *rbd_dev;
         int result;
 
         rbd_assert(!obj_request_img_data_test(obj_request));
@@ -2353,8 +2537,21 @@ static void rbd_img_obj_exists_callback(struct rbd_obj_request *obj_request)
                 obj_request->xferred, obj_request->length);
         rbd_obj_request_put(obj_request);
 
-        rbd_assert(orig_request);
-        rbd_assert(orig_request->img_request);
+        /*
+         * If the overlap has become 0 (most likely because the
+         * image has been flattened) we need to free the pages
+         * and re-submit the original write request.
+         */
+        rbd_dev = orig_request->img_request->rbd_dev;
+        if (!rbd_dev->parent_overlap) {
+                struct ceph_osd_client *osdc;
+
+                rbd_obj_request_put(orig_request);
+                osdc = &rbd_dev->rbd_client->client->osdc;
+                result = rbd_obj_request_submit(osdc, orig_request);
+                if (!result)
+                        return;
+        }
 
         /*
          * Our only purpose here is to determine whether the object
@@ -2512,14 +2709,36 @@ static void rbd_img_parent_read_callback(struct rbd_img_request *img_request)
         struct rbd_obj_request *obj_request;
         struct rbd_device *rbd_dev;
         u64 obj_end;
+        u64 img_xferred;
+        int img_result;
 
         rbd_assert(img_request_child_test(img_request));
 
+        /* First get what we need from the image request and release it */
+
         obj_request = img_request->obj_request;
+        img_xferred = img_request->xferred;
+        img_result = img_request->result;
+        rbd_img_request_put(img_request);
+
+        /*
+         * If the overlap has become 0 (most likely because the
+         * image has been flattened) we need to re-submit the
+         * original request.
+         */
         rbd_assert(obj_request);
         rbd_assert(obj_request->img_request);
+        rbd_dev = obj_request->img_request->rbd_dev;
+        if (!rbd_dev->parent_overlap) {
+                struct ceph_osd_client *osdc;
+
+                osdc = &rbd_dev->rbd_client->client->osdc;
+                img_result = rbd_obj_request_submit(osdc, obj_request);
+                if (!img_result)
+                        return;
+        }
 
-        obj_request->result = img_request->result;
+        obj_request->result = img_result;
         if (obj_request->result)
                 goto out;
 
@@ -2532,7 +2751,6 @@ static void rbd_img_parent_read_callback(struct rbd_img_request *img_request)
          */
         rbd_assert(obj_request->img_offset < U64_MAX - obj_request->length);
         obj_end = obj_request->img_offset + obj_request->length;
-        rbd_dev = obj_request->img_request->rbd_dev;
         if (obj_end > rbd_dev->parent_overlap) {
                 u64 xferred = 0;
 
@@ -2540,43 +2758,39 @@ static void rbd_img_parent_read_callback(struct rbd_img_request *img_request)
                         xferred = rbd_dev->parent_overlap -
                                         obj_request->img_offset;
 
-                obj_request->xferred = min(img_request->xferred, xferred);
+                obj_request->xferred = min(img_xferred, xferred);
         } else {
-                obj_request->xferred = img_request->xferred;
+                obj_request->xferred = img_xferred;
         }
 out:
-        rbd_img_request_put(img_request);
         rbd_img_obj_request_read_callback(obj_request);
         rbd_obj_request_complete(obj_request);
 }
 
 static void rbd_img_parent_read(struct rbd_obj_request *obj_request)
 {
-        struct rbd_device *rbd_dev;
         struct rbd_img_request *img_request;
         int result;
 
         rbd_assert(obj_request_img_data_test(obj_request));
         rbd_assert(obj_request->img_request != NULL);
         rbd_assert(obj_request->result == (s32) -ENOENT);
-        rbd_assert(obj_request->type == OBJ_REQUEST_BIO);
+        rbd_assert(obj_request_type_valid(obj_request->type));
 
-        rbd_dev = obj_request->img_request->rbd_dev;
-        rbd_assert(rbd_dev->parent != NULL);
         /* rbd_read_finish(obj_request, obj_request->length); */
-        img_request = rbd_img_request_create(rbd_dev->parent,
+        img_request = rbd_parent_request_create(obj_request,
                                                 obj_request->img_offset,
-                                                obj_request->length,
-                                                false, true);
+                                                obj_request->length);
         result = -ENOMEM;
         if (!img_request)
                 goto out_err;
 
-        rbd_obj_request_get(obj_request);
-        img_request->obj_request = obj_request;
-
-        result = rbd_img_request_fill(img_request, OBJ_REQUEST_BIO,
-                                        obj_request->bio_list);
+        if (obj_request->type == OBJ_REQUEST_BIO)
+                result = rbd_img_request_fill(img_request, OBJ_REQUEST_BIO,
+                                                obj_request->bio_list);
+        else
+                result = rbd_img_request_fill(img_request, OBJ_REQUEST_PAGES,
+                                                obj_request->pages);
         if (result)
                 goto out_err;
 
@@ -2626,6 +2840,7 @@ out:
 static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
 {
         struct rbd_device *rbd_dev = (struct rbd_device *)data;
+        int ret;
 
         if (!rbd_dev)
                 return;
@@ -2633,7 +2848,9 @@ static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
         dout("%s: \"%s\" notify_id %llu opcode %u\n", __func__,
                 rbd_dev->header_name, (unsigned long long)notify_id,
                 (unsigned int)opcode);
-        (void)rbd_dev_refresh(rbd_dev);
+        ret = rbd_dev_refresh(rbd_dev);
+        if (ret)
+                rbd_warn(rbd_dev, ": header refresh error (%d)\n", ret);
 
         rbd_obj_notify_ack(rbd_dev, notify_id);
 }
@@ -2642,7 +2859,7 @@ static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
  * Request sync osd watch/unwatch.  The value of "start" determines
  * whether a watch request is being initiated or torn down.
  */
-static int rbd_dev_header_watch_sync(struct rbd_device *rbd_dev, int start)
+static int rbd_dev_header_watch_sync(struct rbd_device *rbd_dev, bool start)
 {
         struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc;
         struct rbd_obj_request *obj_request;
@@ -2676,7 +2893,7 @@ static int rbd_dev_header_watch_sync(struct rbd_device *rbd_dev, int start)
                                         rbd_dev->watch_request->osd_req);
 
         osd_req_op_watch_init(obj_request->osd_req, 0, CEPH_OSD_OP_WATCH,
-                                rbd_dev->watch_event->cookie, 0, start);
+                                rbd_dev->watch_event->cookie, 0, start ? 1 : 0);
         rbd_osd_req_format_write(obj_request);
 
         ret = rbd_obj_request_submit(osdc, obj_request);
@@ -2869,9 +3086,16 @@ static void rbd_request_fn(struct request_queue *q)
                         goto end_request;       /* Shouldn't happen */
                 }
 
+                result = -EIO;
+                if (offset + length > rbd_dev->mapping.size) {
+                        rbd_warn(rbd_dev, "beyond EOD (%llu~%llu > %llu)\n",
+                                offset, length, rbd_dev->mapping.size);
+                        goto end_request;
+                }
+
                 result = -ENOMEM;
                 img_request = rbd_img_request_create(rbd_dev, offset, length,
-                                                        write_request, false);
+                                                        write_request);
                 if (!img_request)
                         goto end_request;
 
@@ -3022,17 +3246,11 @@ out:
 }
 
 /*
- * Read the complete header for the given rbd device.
- *
- * Returns a pointer to a dynamically-allocated buffer containing
- * the complete and validated header.  Caller can pass the address
- * of a variable that will be filled in with the version of the
- * header object at the time it was read.
- *
- * Returns a pointer-coded errno if a failure occurs.
+ * Read the complete header for the given rbd device.  On successful
+ * return, the rbd_dev->header field will contain up-to-date
+ * information about the image.
  */
-static struct rbd_image_header_ondisk *
-rbd_dev_v1_header_read(struct rbd_device *rbd_dev)
+static int rbd_dev_v1_header_info(struct rbd_device *rbd_dev)
 {
         struct rbd_image_header_ondisk *ondisk = NULL;
         u32 snap_count = 0;
@@ -3057,22 +3275,22 @@ rbd_dev_v1_header_read(struct rbd_device *rbd_dev)
                 size += names_size;
                 ondisk = kmalloc(size, GFP_KERNEL);
                 if (!ondisk)
-                        return ERR_PTR(-ENOMEM);
+                        return -ENOMEM;
 
                 ret = rbd_obj_read_sync(rbd_dev, rbd_dev->header_name,
                                        0, size, ondisk);
                 if (ret < 0)
-                        goto out_err;
+                        goto out;
                 if ((size_t)ret < size) {
                         ret = -ENXIO;
                         rbd_warn(rbd_dev, "short header read (want %zd got %d)",
                                 size, ret);
-                        goto out_err;
+                        goto out;
                 }
                 if (!rbd_dev_ondisk_valid(ondisk)) {
                         ret = -ENXIO;
                         rbd_warn(rbd_dev, "invalid header");
-                        goto out_err;
+                        goto out;
                 }
 
                 names_size = le64_to_cpu(ondisk->snap_names_len);
@@ -3080,85 +3298,13 @@ rbd_dev_v1_header_read(struct rbd_device *rbd_dev)
                 snap_count = le32_to_cpu(ondisk->snap_count);
         } while (snap_count != want_count);
 
-        return ondisk;
-
-out_err:
-        kfree(ondisk);
-
-        return ERR_PTR(ret);
-}
-
-/*
- * reload the ondisk the header
- */
-static int rbd_read_header(struct rbd_device *rbd_dev,
-                           struct rbd_image_header *header)
-{
-        struct rbd_image_header_ondisk *ondisk;
-        int ret;
-
-        ondisk = rbd_dev_v1_header_read(rbd_dev);
-        if (IS_ERR(ondisk))
-                return PTR_ERR(ondisk);
-        ret = rbd_header_from_disk(header, ondisk);
+        ret = rbd_header_from_disk(rbd_dev, ondisk);
+out:
         kfree(ondisk);
 
         return ret;
 }
 
-static void rbd_update_mapping_size(struct rbd_device *rbd_dev)
-{
-        if (rbd_dev->spec->snap_id != CEPH_NOSNAP)
-                return;
-
-        if (rbd_dev->mapping.size != rbd_dev->header.image_size) {
-                sector_t size;
-
-                rbd_dev->mapping.size = rbd_dev->header.image_size;
-                size = (sector_t)rbd_dev->mapping.size / SECTOR_SIZE;
-                dout("setting size to %llu sectors", (unsigned long long)size);
-                set_capacity(rbd_dev->disk, size);
-        }
-}
-
-/*
- * only read the first part of the ondisk header, without the snaps info
- */
-static int rbd_dev_v1_refresh(struct rbd_device *rbd_dev)
-{
-        int ret;
-        struct rbd_image_header h;
-
-        ret = rbd_read_header(rbd_dev, &h);
-        if (ret < 0)
-                return ret;
-
-        down_write(&rbd_dev->header_rwsem);
-
-        /* Update image size, and check for resize of mapped image */
-        rbd_dev->header.image_size = h.image_size;
-        rbd_update_mapping_size(rbd_dev);
-
-        /* rbd_dev->header.object_prefix shouldn't change */
-        kfree(rbd_dev->header.snap_sizes);
-        kfree(rbd_dev->header.snap_names);
-        /* osd requests may still refer to snapc */
-        ceph_put_snap_context(rbd_dev->header.snapc);
-
-        rbd_dev->header.image_size = h.image_size;
-        rbd_dev->header.snapc = h.snapc;
-        rbd_dev->header.snap_names = h.snap_names;
-        rbd_dev->header.snap_sizes = h.snap_sizes;
-        /* Free the extra copy of the object prefix */
-        if (strcmp(rbd_dev->header.object_prefix, h.object_prefix))
-                rbd_warn(rbd_dev, "object prefix changed (ignoring)");
-        kfree(h.object_prefix);
-
-        up_write(&rbd_dev->header_rwsem);
-
-        return ret;
-}
-
 /*
  * Clear the rbd device's EXISTS flag if the snapshot it's mapped to
  * has disappeared from the (just updated) snapshot context.
@@ -3180,26 +3326,29 @@ static void rbd_exists_validate(struct rbd_device *rbd_dev)
 
 static int rbd_dev_refresh(struct rbd_device *rbd_dev)
 {
-        u64 image_size;
+        u64 mapping_size;
         int ret;
 
         rbd_assert(rbd_image_format_valid(rbd_dev->image_format));
-        image_size = rbd_dev->header.image_size;
+        mapping_size = rbd_dev->mapping.size;
         mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
         if (rbd_dev->image_format == 1)
-                ret = rbd_dev_v1_refresh(rbd_dev);
+                ret = rbd_dev_v1_header_info(rbd_dev);
         else
-                ret = rbd_dev_v2_refresh(rbd_dev);
+                ret = rbd_dev_v2_header_info(rbd_dev);
 
         /* If it's a mapped snapshot, validate its EXISTS flag */
 
         rbd_exists_validate(rbd_dev);
         mutex_unlock(&ctl_mutex);
-        if (ret)
-                rbd_warn(rbd_dev, "got notification but failed to "
-                           " update snaps: %d\n", ret);
-        if (image_size != rbd_dev->header.image_size)
+        if (mapping_size != rbd_dev->mapping.size) {
+                sector_t size;
+
+                size = (sector_t)rbd_dev->mapping.size / SECTOR_SIZE;
+                dout("setting size to %llu sectors", (unsigned long long)size);
+                set_capacity(rbd_dev->disk, size);
                 revalidate_disk(rbd_dev->disk);
+        }
 
         return ret;
 }
@@ -3403,6 +3552,8 @@ static ssize_t rbd_image_refresh(struct device *dev,
         int ret;
 
         ret = rbd_dev_refresh(rbd_dev);
+        if (ret)
+                rbd_warn(rbd_dev, ": manual header refresh error (%d)\n", ret);
 
         return ret < 0 ? ret : size;
 }
@@ -3501,6 +3652,7 @@ static struct rbd_device *rbd_dev_create(struct rbd_client *rbdc,
 
         spin_lock_init(&rbd_dev->lock);
         rbd_dev->flags = 0;
+        atomic_set(&rbd_dev->parent_ref, 0);
         INIT_LIST_HEAD(&rbd_dev->node);
         init_rwsem(&rbd_dev->header_rwsem);
 
@@ -3650,6 +3802,7 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev)
         __le64 snapid;
         void *p;
         void *end;
+        u64 pool_id;
         char *image_id;
         u64 overlap;
         int ret;
@@ -3680,18 +3833,37 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev)
         p = reply_buf;
         end = reply_buf + ret;
         ret = -ERANGE;
-        ceph_decode_64_safe(&p, end, parent_spec->pool_id, out_err);
-        if (parent_spec->pool_id == CEPH_NOPOOL)
+        ceph_decode_64_safe(&p, end, pool_id, out_err);
+        if (pool_id == CEPH_NOPOOL) {
+                /*
+                 * Either the parent never existed, or we have
+                 * record of it but the image got flattened so it no
+                 * longer has a parent.  When the parent of a
+                 * layered image disappears we immediately set the
+                 * overlap to 0.  The effect of this is that all new
+                 * requests will be treated as if the image had no
+                 * parent.
+                 */
+                if (rbd_dev->parent_overlap) {
+                        rbd_dev->parent_overlap = 0;
+                        smp_mb();
+                        rbd_dev_parent_put(rbd_dev);
+                        pr_info("%s: clone image has been flattened\n",
+                                rbd_dev->disk->disk_name);
+                }
+
                 goto out;       /* No parent?  No problem. */
+        }
 
         /* The ceph file layout needs to fit pool id in 32 bits */
 
         ret = -EIO;
-        if (parent_spec->pool_id > (u64)U32_MAX) {
+        if (pool_id > (u64)U32_MAX) {
                 rbd_warn(NULL, "parent pool id too large (%llu > %u)\n",
-                        (unsigned long long)parent_spec->pool_id, U32_MAX);
+                        (unsigned long long)pool_id, U32_MAX);
                 goto out_err;
         }
+        parent_spec->pool_id = pool_id;
 
         image_id = ceph_extract_encoded_string(&p, end, NULL, GFP_KERNEL);
         if (IS_ERR(image_id)) {
@@ -3702,9 +3874,14 @@ static int rbd_dev_v2_parent_info(struct rbd_device *rbd_dev)
         ceph_decode_64_safe(&p, end, parent_spec->snap_id, out_err);
         ceph_decode_64_safe(&p, end, overlap, out_err);
 
-        rbd_dev->parent_overlap = overlap;
-        rbd_dev->parent_spec = parent_spec;
-        parent_spec = NULL;     /* rbd_dev now owns this */
+        if (overlap) {
+                rbd_spec_put(rbd_dev->parent_spec);
+                rbd_dev->parent_spec = parent_spec;
+                parent_spec = NULL;     /* rbd_dev now owns this */
+                rbd_dev->parent_overlap = overlap;
+        } else {
+                rbd_warn(rbd_dev, "ignoring parent of clone with overlap 0\n");
+        }
 out:
         ret = 0;
 out_err:
@@ -4002,6 +4179,7 @@ static int rbd_dev_v2_snap_context(struct rbd_device *rbd_dev)
         for (i = 0; i < snap_count; i++)
                 snapc->snaps[i] = ceph_decode_64(&p);
 
+        ceph_put_snap_context(rbd_dev->header.snapc);
         rbd_dev->header.snapc = snapc;
 
         dout("  snap context seq = %llu, snap_count = %u\n",
@@ -4053,21 +4231,56 @@ out:
         return snap_name;
 }
 
-static int rbd_dev_v2_refresh(struct rbd_device *rbd_dev)
+static int rbd_dev_v2_header_info(struct rbd_device *rbd_dev)
 {
+        bool first_time = rbd_dev->header.object_prefix == NULL;
         int ret;
 
         down_write(&rbd_dev->header_rwsem);
 
+        if (first_time) {
+                ret = rbd_dev_v2_header_onetime(rbd_dev);
+                if (ret)
+                        goto out;
+        }
+
+        /*
+         * If the image supports layering, get the parent info.  We
+         * need to probe the first time regardless.  Thereafter we
+         * only need to if there's a parent, to see if it has
+         * disappeared due to the mapped image getting flattened.
+         */
+        if (rbd_dev->header.features & RBD_FEATURE_LAYERING &&
+                        (first_time || rbd_dev->parent_spec)) {
+                bool warn;
+
+                ret = rbd_dev_v2_parent_info(rbd_dev);
+                if (ret)
+                        goto out;
+
+                /*
+                 * Print a warning if this is the initial probe and
+                 * the image has a parent.  Don't print it if the
+                 * image now being probed is itself a parent.  We
+                 * can tell at this point because we won't know its
+                 * pool name yet (just its pool id).
+                 */
+                warn = rbd_dev->parent_spec && rbd_dev->spec->pool_name;
+                if (first_time && warn)
+                        rbd_warn(rbd_dev, "WARNING: kernel layering "
+                                        "is EXPERIMENTAL!");
+        }
+
         ret = rbd_dev_v2_image_size(rbd_dev);
         if (ret)
                 goto out;
-        rbd_update_mapping_size(rbd_dev);
+
+        if (rbd_dev->spec->snap_id == CEPH_NOSNAP)
+                if (rbd_dev->mapping.size != rbd_dev->header.image_size)
+                        rbd_dev->mapping.size = rbd_dev->header.image_size;
 
         ret = rbd_dev_v2_snap_context(rbd_dev);
         dout("rbd_dev_v2_snap_context returned %d\n", ret);
-        if (ret)
-                goto out;
 out:
         up_write(&rbd_dev->header_rwsem);
 
@@ -4490,10 +4703,10 @@ static void rbd_dev_unprobe(struct rbd_device *rbd_dev)
 {
         struct rbd_image_header *header;
 
-        rbd_dev_remove_parent(rbd_dev);
-        rbd_spec_put(rbd_dev->parent_spec);
-        rbd_dev->parent_spec = NULL;
-        rbd_dev->parent_overlap = 0;
+        /* Drop parent reference unless it's already been done (or none) */
+
+        if (rbd_dev->parent_overlap)
+                rbd_dev_parent_put(rbd_dev);
 
         /* Free dynamic fields from the header, then zero it out */
 
@@ -4505,72 +4718,22 @@ static void rbd_dev_unprobe(struct rbd_device *rbd_dev)
         memset(header, 0, sizeof (*header));
 }
 
-static int rbd_dev_v1_probe(struct rbd_device *rbd_dev)
+static int rbd_dev_v2_header_onetime(struct rbd_device *rbd_dev)
 {
         int ret;
 
-        /* Populate rbd image metadata */
-
-        ret = rbd_read_header(rbd_dev, &rbd_dev->header);
-        if (ret < 0)
-                goto out_err;
-
-        /* Version 1 images have no parent (no layering) */
-
-        rbd_dev->parent_spec = NULL;
-        rbd_dev->parent_overlap = 0;
-
-        dout("discovered version 1 image, header name is %s\n",
-                rbd_dev->header_name);
-
-        return 0;
-
-out_err:
-        kfree(rbd_dev->header_name);
-        rbd_dev->header_name = NULL;
-        kfree(rbd_dev->spec->image_id);
-        rbd_dev->spec->image_id = NULL;
-
-        return ret;
-}
-
-static int rbd_dev_v2_probe(struct rbd_device *rbd_dev)
-{
-        int ret;
-
-        ret = rbd_dev_v2_image_size(rbd_dev);
-        if (ret)
-                goto out_err;
-
-        /* Get the object prefix (a.k.a. block_name) for the image */
-
         ret = rbd_dev_v2_object_prefix(rbd_dev);
         if (ret)
                 goto out_err;
 
-        /* Get the and check features for the image */
-
+        /*
+         * Get the and check features for the image.  Currently the
+         * features are assumed to never change.
+         */
         ret = rbd_dev_v2_features(rbd_dev);
         if (ret)
                 goto out_err;
 
-        /* If the image supports layering, get the parent info */
-
-        if (rbd_dev->header.features & RBD_FEATURE_LAYERING) {
-                ret = rbd_dev_v2_parent_info(rbd_dev);
-                if (ret)
-                        goto out_err;
-
-                /*
-                 * Don't print a warning for parent images.  We can
-                 * tell this point because we won't know its pool
-                 * name yet (just its pool id).
-                 */
-                if (rbd_dev->spec->pool_name)
-                        rbd_warn(rbd_dev, "WARNING: kernel layering "
-                                        "is EXPERIMENTAL!");
-        }
-
         /* If the image supports fancy striping, get its parameters */
 
         if (rbd_dev->header.features & RBD_FEATURE_STRIPINGV2) {
@@ -4578,28 +4741,11 @@ static int rbd_dev_v2_probe(struct rbd_device *rbd_dev)
                 if (ret < 0)
                         goto out_err;
         }
-
-        /* crypto and compression type aren't (yet) supported for v2 images */
-
-        rbd_dev->header.crypt_type = 0;
-        rbd_dev->header.comp_type = 0;
-
-        /* Get the snapshot context, plus the header version */
-
-        ret = rbd_dev_v2_snap_context(rbd_dev);
-        if (ret)
-                goto out_err;
-
-        dout("discovered version 2 image, header name is %s\n",
-                rbd_dev->header_name);
+        /* No support for crypto and compression type format 2 images */
 
         return 0;
 out_err:
-        rbd_dev->parent_overlap = 0;
-        rbd_spec_put(rbd_dev->parent_spec);
-        rbd_dev->parent_spec = NULL;
-        kfree(rbd_dev->header_name);
-        rbd_dev->header_name = NULL;
+        rbd_dev->header.features = 0;
         kfree(rbd_dev->header.object_prefix);
         rbd_dev->header.object_prefix = NULL;
 
@@ -4628,15 +4774,16 @@ static int rbd_dev_probe_parent(struct rbd_device *rbd_dev)
         if (!parent)
                 goto out_err;
 
-        ret = rbd_dev_image_probe(parent);
+        ret = rbd_dev_image_probe(parent, false);
         if (ret < 0)
                 goto out_err;
         rbd_dev->parent = parent;
+        atomic_set(&rbd_dev->parent_ref, 1);
 
         return 0;
 out_err:
         if (parent) {
-                rbd_spec_put(rbd_dev->parent_spec);
+                rbd_dev_unparent(rbd_dev);
                 kfree(rbd_dev->header_name);
                 rbd_dev_destroy(parent);
         } else {
@@ -4651,10 +4798,6 @@ static int rbd_dev_device_setup(struct rbd_device *rbd_dev)
 {
         int ret;
 
-        ret = rbd_dev_mapping_set(rbd_dev);
-        if (ret)
-                return ret;
-
         /* generate unique id: find highest unique id, add one */
         rbd_dev_id_get(rbd_dev);
 
@@ -4676,13 +4819,17 @@ static int rbd_dev_device_setup(struct rbd_device *rbd_dev)
         if (ret)
                 goto err_out_blkdev;
 
-        ret = rbd_bus_add_dev(rbd_dev);
+        ret = rbd_dev_mapping_set(rbd_dev);
         if (ret)
                 goto err_out_disk;
+        set_capacity(rbd_dev->disk, rbd_dev->mapping.size / SECTOR_SIZE);
+
+        ret = rbd_bus_add_dev(rbd_dev);
+        if (ret)
+                goto err_out_mapping;
 
         /* Everything's ready.  Announce the disk to the world. */
 
-        set_capacity(rbd_dev->disk, rbd_dev->mapping.size / SECTOR_SIZE);
         set_bit(RBD_DEV_FLAG_EXISTS, &rbd_dev->flags);
         add_disk(rbd_dev->disk);
 
@@ -4691,6 +4838,8 @@ static int rbd_dev_device_setup(struct rbd_device *rbd_dev)
 
         return ret;
 
+err_out_mapping:
+        rbd_dev_mapping_clear(rbd_dev);
 err_out_disk:
         rbd_free_disk(rbd_dev);
 err_out_blkdev:
@@ -4731,12 +4880,7 @@ static int rbd_dev_header_name(struct rbd_device *rbd_dev)
 
 static void rbd_dev_image_release(struct rbd_device *rbd_dev)
 {
-        int ret;
-
         rbd_dev_unprobe(rbd_dev);
-        ret = rbd_dev_header_watch_sync(rbd_dev, 0);
-        if (ret)
-                rbd_warn(rbd_dev, "failed to cancel watch event (%d)\n", ret);
         kfree(rbd_dev->header_name);
         rbd_dev->header_name = NULL;
         rbd_dev->image_format = 0;
@@ -4748,10 +4892,11 @@ static void rbd_dev_image_release(struct rbd_device *rbd_dev)
 
 /*
  * Probe for the existence of the header object for the given rbd
- * device.  For format 2 images this includes determining the image
- * id.
+ * device.  If this image is the one being mapped (i.e., not a
+ * parent), initiate a watch on its header object before using that
+ * object to get detailed information about the rbd image.
  */
-static int rbd_dev_image_probe(struct rbd_device *rbd_dev)
+static int rbd_dev_image_probe(struct rbd_device *rbd_dev, bool mapping)
 {
         int ret;
         int tmp;
@@ -4771,14 +4916,16 @@ static int rbd_dev_image_probe(struct rbd_device *rbd_dev)
         if (ret)
                 goto err_out_format;
 
-        ret = rbd_dev_header_watch_sync(rbd_dev, 1);
-        if (ret)
-                goto out_header_name;
+        if (mapping) {
+                ret = rbd_dev_header_watch_sync(rbd_dev, true);
+                if (ret)
+                        goto out_header_name;
+        }
 
         if (rbd_dev->image_format == 1)
-                ret = rbd_dev_v1_probe(rbd_dev);
+                ret = rbd_dev_v1_header_info(rbd_dev);
         else
-                ret = rbd_dev_v2_probe(rbd_dev);
+                ret = rbd_dev_v2_header_info(rbd_dev);
         if (ret)
                 goto err_out_watch;
 
@@ -4787,15 +4934,22 @@ static int rbd_dev_image_probe(struct rbd_device *rbd_dev)
                 goto err_out_probe;
 
         ret = rbd_dev_probe_parent(rbd_dev);
-        if (!ret)
-                return 0;
+        if (ret)
+                goto err_out_probe;
+
+        dout("discovered format %u image, header name is %s\n",
+                rbd_dev->image_format, rbd_dev->header_name);
 
+        return 0;
 err_out_probe:
         rbd_dev_unprobe(rbd_dev);
 err_out_watch:
-        tmp = rbd_dev_header_watch_sync(rbd_dev, 0);
-        if (tmp)
-                rbd_warn(rbd_dev, "unable to tear down watch request\n");
+        if (mapping) {
+                tmp = rbd_dev_header_watch_sync(rbd_dev, false);
+                if (tmp)
+                        rbd_warn(rbd_dev, "unable to tear down "
+                                        "watch request (%d)\n", tmp);
+        }
 out_header_name:
         kfree(rbd_dev->header_name);
         rbd_dev->header_name = NULL;
@@ -4819,6 +4973,7 @@ static ssize_t rbd_add(struct bus_type *bus,
         struct rbd_spec *spec = NULL;
         struct rbd_client *rbdc;
         struct ceph_osd_client *osdc;
+        bool read_only;
         int rc = -ENOMEM;
 
         if (!try_module_get(THIS_MODULE))
@@ -4828,6 +4983,9 @@ static ssize_t rbd_add(struct bus_type *bus,
         rc = rbd_add_parse_args(buf, &ceph_opts, &rbd_opts, &spec);
         if (rc < 0)
                 goto err_out_module;
+        read_only = rbd_opts->read_only;
+        kfree(rbd_opts);
+        rbd_opts = NULL;        /* done with this */
 
         rbdc = rbd_get_client(ceph_opts);
         if (IS_ERR(rbdc)) {
@@ -4858,14 +5016,16 @@ static ssize_t rbd_add(struct bus_type *bus,
         rbdc = NULL;            /* rbd_dev now owns this */
         spec = NULL;            /* rbd_dev now owns this */
 
-        rbd_dev->mapping.read_only = rbd_opts->read_only;
-        kfree(rbd_opts);
-        rbd_opts = NULL;        /* done with this */
-
-        rc = rbd_dev_image_probe(rbd_dev);
+        rc = rbd_dev_image_probe(rbd_dev, true);
         if (rc < 0)
                 goto err_out_rbd_dev;
 
+        /* If we are mapping a snapshot it must be marked read-only */
+
+        if (rbd_dev->spec->snap_id != CEPH_NOSNAP)
+                read_only = true;
+        rbd_dev->mapping.read_only = read_only;
+
         rc = rbd_dev_device_setup(rbd_dev);
         if (!rc)
                 return count;
@@ -4911,7 +5071,7 @@ static void rbd_dev_device_release(struct device *dev)
 
         rbd_free_disk(rbd_dev);
         clear_bit(RBD_DEV_FLAG_EXISTS, &rbd_dev->flags);
-        rbd_dev_clear_mapping(rbd_dev);
+        rbd_dev_mapping_clear(rbd_dev);
         unregister_blkdev(rbd_dev->major, rbd_dev->name);
         rbd_dev->major = 0;
         rbd_dev_id_put(rbd_dev);
@@ -4978,10 +5138,13 @@ static ssize_t rbd_remove(struct bus_type *bus,
         spin_unlock_irq(&rbd_dev->lock);
         if (ret < 0)
                 goto done;
-        ret = count;
         rbd_bus_del_dev(rbd_dev);
+        ret = rbd_dev_header_watch_sync(rbd_dev, false);
+        if (ret)
+                rbd_warn(rbd_dev, "failed to cancel watch event (%d)\n", ret);
         rbd_dev_image_release(rbd_dev);
         module_put(THIS_MODULE);
+        ret = count;
 done:
         mutex_unlock(&ctl_mutex);
 
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index f8ef15f37c5e..3fd130fdfbc1 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -1160,8 +1160,7 @@ static int ace_probe(struct platform_device *dev)
         dev_dbg(&dev->dev, "ace_probe(%p)\n", dev);
 
         /* device id and bus width */
-        of_property_read_u32(dev->dev.of_node, "port-number", &id);
-        if (id < 0)
+        if (of_property_read_u32(dev->dev.of_node, "port-number", &id))
                 id = 0;
         if (of_find_property(dev->dev.of_node, "8-bit", NULL))
                 bus_width = ACE_BUS_WIDTH_8;
diff --git a/drivers/char/hw_random/mxc-rnga.c b/drivers/char/hw_random/mxc-rnga.c
index 4ca35e8a5d8c..19a12ac64a9e 100644
--- a/drivers/char/hw_random/mxc-rnga.c
+++ b/drivers/char/hw_random/mxc-rnga.c
@@ -167,11 +167,6 @@ static int __init mxc_rnga_probe(struct platform_device *pdev)
         clk_prepare_enable(mxc_rng->clk);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                err = -ENOENT;
-                goto err_region;
-        }
-
         mxc_rng->mem = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(mxc_rng->mem)) {
                 err = PTR_ERR(mxc_rng->mem);
@@ -189,7 +184,6 @@ static int __init mxc_rnga_probe(struct platform_device *pdev)
         return 0;
 
 err_ioremap:
-err_region:
         clk_disable_unprepare(mxc_rng->clk);
 
 out:
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 749dc16ca2cc..d2903e772270 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -119,11 +119,6 @@ static int omap_rng_probe(struct platform_device *pdev)
         dev_set_drvdata(&pdev->dev, priv);
 
         priv->mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!priv->mem_res) {
-                ret = -ENOENT;
-                goto err_ioremap;
-        }
-
         priv->base = devm_ioremap_resource(&pdev->dev, priv->mem_res);
         if (IS_ERR(priv->base)) {
                 ret = PTR_ERR(priv->base);
diff --git a/drivers/char/ipmi/ipmi_bt_sm.c b/drivers/char/ipmi/ipmi_bt_sm.c
index cdd4c09fda96..a22a7a502740 100644
--- a/drivers/char/ipmi/ipmi_bt_sm.c
+++ b/drivers/char/ipmi/ipmi_bt_sm.c
@@ -95,9 +95,9 @@ struct si_sm_data {
         enum bt_states  state;
         unsigned char   seq;            /* BT sequence number */
         struct si_sm_io *io;
-        unsigned char   write_data[IPMI_MAX_MSG_LENGTH];
+        unsigned char   write_data[IPMI_MAX_MSG_LENGTH + 2]; /* +2 for memcpy */
         int             write_count;
-        unsigned char   read_data[IPMI_MAX_MSG_LENGTH];
+        unsigned char   read_data[IPMI_MAX_MSG_LENGTH + 2]; /* +2 for memcpy */
         int             read_count;
         int             truncated;
         long            timeout;        /* microseconds countdown */
diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c
index 9eb360ff8cab..d5a5f020810a 100644
--- a/drivers/char/ipmi/ipmi_devintf.c
+++ b/drivers/char/ipmi/ipmi_devintf.c
@@ -837,13 +837,25 @@ static long compat_ipmi_ioctl(struct file *filep, unsigned int cmd,
                 return ipmi_ioctl(filep, cmd, arg);
         }
 }
+
+static long unlocked_compat_ipmi_ioctl(struct file *filep, unsigned int cmd,
+                                       unsigned long arg)
+{
+        int ret;
+
+        mutex_lock(&ipmi_mutex);
+        ret = compat_ipmi_ioctl(filep, cmd, arg);
+        mutex_unlock(&ipmi_mutex);
+
+        return ret;
+}
 #endif
 
 static const struct file_operations ipmi_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = ipmi_unlocked_ioctl,
 #ifdef CONFIG_COMPAT
-        .compat_ioctl   = compat_ipmi_ioctl,
+        .compat_ioctl   = unlocked_compat_ipmi_ioctl,
 #endif
         .open           = ipmi_open,
         .release        = ipmi_release,
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 4d439d2fcfd6..4445fa164a2d 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -2037,12 +2037,11 @@ int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
         entry = kmalloc(sizeof(*entry), GFP_KERNEL);
         if (!entry)
                 return -ENOMEM;
-        entry->name = kmalloc(strlen(name)+1, GFP_KERNEL);
+        entry->name = kstrdup(name, GFP_KERNEL);
         if (!entry->name) {
                 kfree(entry);
                 return -ENOMEM;
         }
-        strcpy(entry->name, name);
 
         file = proc_create_data(name, 0, smi->proc_dir, proc_ops, data);
         if (!file) {
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 313538abe63c..af4b23ffc5a6 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -663,8 +663,10 @@ static void handle_transaction_done(struct smi_info *smi_info)
                 /* We got the flags from the SMI, now handle them. */
                 smi_info->handlers->get_result(smi_info->si_sm, msg, 4);
                 if (msg[2] != 0) {
-                        dev_warn(smi_info->dev, "Could not enable interrupts"
-                                 ", failed get, using polled mode.\n");
+                        dev_warn(smi_info->dev,
+                                 "Couldn't get irq info: %x.\n", msg[2]);
+                        dev_warn(smi_info->dev,
+                                 "Maybe ok, but ipmi might run very slowly.\n");
                         smi_info->si_state = SI_NORMAL;
                 } else {
                         msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
@@ -685,10 +687,12 @@ static void handle_transaction_done(struct smi_info *smi_info)
 
                 /* We got the flags from the SMI, now handle them. */
                 smi_info->handlers->get_result(smi_info->si_sm, msg, 4);
-                if (msg[2] != 0)
-                        dev_warn(smi_info->dev, "Could not enable interrupts"
-                                 ", failed set, using polled mode.\n");
-                else
+                if (msg[2] != 0) {
+                        dev_warn(smi_info->dev,
+                                 "Couldn't set irq info: %x.\n", msg[2]);
+                        dev_warn(smi_info->dev,
+                                 "Maybe ok, but ipmi might run very slowly.\n");
+                } else
                         smi_info->interrupt_disabled = 0;
                 smi_info->si_state = SI_NORMAL;
                 break;
diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index dafd9ac6428f..0913d79424d3 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -622,9 +622,12 @@ static int lp_do_ioctl(unsigned int minor, unsigned int cmd,
                                 return -EFAULT;
                         break;
                 case LPGETSTATUS:
+                        if (mutex_lock_interruptible(&lp_table[minor].port_mutex))
+                                return -EINTR;
                         lp_claim_parport_or_block (&lp_table[minor]);
                         status = r_str(minor);
                         lp_release_parport (&lp_table[minor]);
+                        mutex_unlock(&lp_table[minor].port_mutex);
 
                         if (copy_to_user(argp, &status, sizeof(int)))
                                 return -EFAULT;
diff --git a/drivers/char/random.c b/drivers/char/random.c
index cd9a6211dcad..35487e8ded59 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -865,16 +865,24 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
         if (r->entropy_count / 8 < min + reserved) {
                 nbytes = 0;
         } else {
+                int entropy_count, orig;
+retry:
+                entropy_count = orig = ACCESS_ONCE(r->entropy_count);
                 /* If limited, never pull more than available */
-                if (r->limit && nbytes + reserved >= r->entropy_count / 8)
-                        nbytes = r->entropy_count/8 - reserved;
-
-                if (r->entropy_count / 8 >= nbytes + reserved)
-                        r->entropy_count -= nbytes*8;
-                else
-                        r->entropy_count = reserved;
+                if (r->limit && nbytes + reserved >= entropy_count / 8)
+                        nbytes = entropy_count/8 - reserved;
+
+                if (entropy_count / 8 >= nbytes + reserved) {
+                        entropy_count -= nbytes*8;
+                        if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+                                goto retry;
+                } else {
+                        entropy_count = reserved;
+                        if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+                                goto retry;
+                }
 
-                if (r->entropy_count < random_write_wakeup_thresh)
+                if (entropy_count < random_write_wakeup_thresh)
                         wakeup_write = 1;
         }
 
@@ -957,10 +965,23 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
 {
         ssize_t ret = 0, i;
         __u8 tmp[EXTRACT_SIZE];
+        unsigned long flags;
 
         /* if last_data isn't primed, we need EXTRACT_SIZE extra bytes */
-        if (fips_enabled && !r->last_data_init)
-                nbytes += EXTRACT_SIZE;
+        if (fips_enabled) {
+                spin_lock_irqsave(&r->lock, flags);
+                if (!r->last_data_init) {
+                        r->last_data_init = true;
+                        spin_unlock_irqrestore(&r->lock, flags);
+                        trace_extract_entropy(r->name, EXTRACT_SIZE,
+                                              r->entropy_count, _RET_IP_);
+                        xfer_secondary_pool(r, EXTRACT_SIZE);
+                        extract_buf(r, tmp);
+                        spin_lock_irqsave(&r->lock, flags);
+                        memcpy(r->last_data, tmp, EXTRACT_SIZE);
+                }
+                spin_unlock_irqrestore(&r->lock, flags);
+        }
 
         trace_extract_entropy(r->name, nbytes, r->entropy_count, _RET_IP_);
         xfer_secondary_pool(r, nbytes);
@@ -970,19 +991,6 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
                 extract_buf(r, tmp);
 
                 if (fips_enabled) {
-                        unsigned long flags;
-
-
-                        /* prime last_data value if need be, per fips 140-2 */
-                        if (!r->last_data_init) {
-                                spin_lock_irqsave(&r->lock, flags);
-                                memcpy(r->last_data, tmp, EXTRACT_SIZE);
-                                r->last_data_init = true;
-                                nbytes -= EXTRACT_SIZE;
-                                spin_unlock_irqrestore(&r->lock, flags);
-                                extract_buf(r, tmp);
-                        }
-
                         spin_lock_irqsave(&r->lock, flags);
                         if (!memcmp(tmp, r->last_data, EXTRACT_SIZE))
                                 panic("Hardware RNG duplicated output!\n");
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index 4945bd3d18d0..d5d2e4a985aa 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -179,7 +179,6 @@ static int __init ttyprintk_init(void)
 {
         int ret = -ENOMEM;
 
-        tpk_port.port.ops = &null_ops;
         mutex_init(&tpk_port.port_write_mutex);
 
         ttyprintk_driver = tty_alloc_driver(1,
@@ -190,6 +189,7 @@ static int __init ttyprintk_init(void)
                 return PTR_ERR(ttyprintk_driver);
 
         tty_port_init(&tpk_port.port);
+        tpk_port.port.ops = &null_ops;
 
         ttyprintk_driver->driver_name = "ttyprintk";
         ttyprintk_driver->name = "ttyprintk";
diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index 8292a00c3de9..075db0c99edb 100644
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -872,6 +872,14 @@ static void __init tegra20_periph_clk_init(void)
         struct clk *clk;
         int i;
 
+        /* ac97 */
+        clk = tegra_clk_register_periph_gate("ac97", "pll_a_out0",
+                                    TEGRA_PERIPH_ON_APB,
+                                    clk_base, 0, 3, &periph_l_regs,
+                                    periph_clk_enb_refcnt);
+        clk_register_clkdev(clk, NULL, "tegra20-ac97");
+        clks[ac97] = clk;
+
         /* apbdma */
         clk = tegra_clk_register_periph_gate("apbdma", "pclk", 0, clk_base,
                                     0, 34, &periph_h_regs,
@@ -1234,9 +1242,6 @@ static __initdata struct tegra_clk_init_table init_table[] = {
         {uartc, pll_p, 0, 0},
         {uartd, pll_p, 0, 0},
         {uarte, pll_p, 0, 0},
-        {usbd, clk_max, 12000000, 0},
-        {usb2, clk_max, 12000000, 0},
-        {usb3, clk_max, 12000000, 0},
         {pll_a, clk_max, 56448000, 1},
         {pll_a_out0, clk_max, 11289600, 1},
         {cdev1, clk_max, 0, 1},
diff --git a/drivers/clk/x86/clk-lpt.c b/drivers/clk/x86/clk-lpt.c
index 5cf4f4686406..4f45eee9e33b 100644
--- a/drivers/clk/x86/clk-lpt.c
+++ b/drivers/clk/x86/clk-lpt.c
@@ -15,22 +15,29 @@
 #include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/platform_data/clk-lpss.h>
 #include <linux/platform_device.h>
 
 #define PRV_CLOCK_PARAMS 0x800
 
 static int lpt_clk_probe(struct platform_device *pdev)
 {
+        struct lpss_clk_data *drvdata;
         struct clk *clk;
 
+        drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
+        if (!drvdata)
+                return -ENOMEM;
+
         /* LPSS free running clock */
-        clk = clk_register_fixed_rate(&pdev->dev, "lpss_clk", NULL, CLK_IS_ROOT,
-                                      100000000);
+        drvdata->name = "lpss_clk";
+        clk = clk_register_fixed_rate(&pdev->dev, drvdata->name, NULL,
+                                      CLK_IS_ROOT, 100000000);
         if (IS_ERR(clk))
                 return PTR_ERR(clk);
 
-        /* Shared DMA clock */
-        clk_register_clkdev(clk, "hclk", "INTL9C60.0.auto");
+        drvdata->clk = clk;
+        platform_set_drvdata(pdev, drvdata);
         return 0;
 }
 
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index a1488f58f6ca..534fcb825153 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -47,7 +47,7 @@ config CPU_FREQ_STAT_DETAILS
 
 choice
         prompt "Default CPUFreq governor"
-        default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110
+        default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1100_CPUFREQ || ARM_SA1110_CPUFREQ
         default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
         help
           This option sets which CPUFreq governor shall be loaded at
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index f3af18b9acc5..6e57543fe0b9 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -3,16 +3,17 @@
 #
 
 config ARM_BIG_LITTLE_CPUFREQ
-        tristate
-        depends on ARM_CPU_TOPOLOGY
+        tristate "Generic ARM big LITTLE CPUfreq driver"
+        depends on ARM_CPU_TOPOLOGY && PM_OPP && HAVE_CLK
+        help
+          This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
 
 config ARM_DT_BL_CPUFREQ
-        tristate "Generic ARM big LITTLE CPUfreq driver probed via DT"
-        select ARM_BIG_LITTLE_CPUFREQ
-        depends on OF && HAVE_CLK
+        tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
+        depends on ARM_BIG_LITTLE_CPUFREQ && OF
         help
-          This enables the Generic CPUfreq driver for ARM big.LITTLE platform.
-          This gets frequency tables from DT.
+          This enables probing via DT for Generic CPUfreq driver for ARM
+          big.LITTLE platform. This gets frequency tables from DT.
 
 config ARM_EXYNOS_CPUFREQ
         bool "SAMSUNG EXYNOS SoCs"
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index 2b8a8c374548..6bd63d63d356 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -272,7 +272,7 @@ config X86_LONGHAUL
 config X86_E_POWERSAVER
         tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)"
         select CPU_FREQ_TABLE
-        depends on X86_32
+        depends on X86_32 && ACPI_PROCESSOR
         help
           This adds the CPUFreq driver for VIA C7 processors.  However, this driver
           does not have any safeguards to prevent operating the CPU out of spec
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index dbdf677d2f36..5d7f53fcd6f5 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -40,11 +40,6 @@ static struct clk *clk[MAX_CLUSTERS];
 static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS];
 static atomic_t cluster_usage[MAX_CLUSTERS] = {ATOMIC_INIT(0), ATOMIC_INIT(0)};
 
-static int cpu_to_cluster(int cpu)
-{
-        return topology_physical_package_id(cpu);
-}
-
 static unsigned int bL_cpufreq_get(unsigned int cpu)
 {
         u32 cur_cluster = cpu_to_cluster(cpu);
@@ -192,7 +187,7 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy)
 
         cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
 
-        dev_info(cpu_dev, "CPU %d initialized\n", policy->cpu);
+        dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu);
         return 0;
 }
 
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
index 70f18fc12d4a..79b2ce17884d 100644
--- a/drivers/cpufreq/arm_big_little.h
+++ b/drivers/cpufreq/arm_big_little.h
@@ -34,6 +34,11 @@ struct cpufreq_arm_bL_ops {
         int (*init_opp_table)(struct device *cpu_dev);
 };
 
+static inline int cpu_to_cluster(int cpu)
+{
+        return topology_physical_package_id(cpu);
+}
+
 int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);
 void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops);
 
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
index 44be3115375c..fd9e3ea6a480 100644
--- a/drivers/cpufreq/arm_big_little_dt.c
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -19,69 +19,75 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/cpu.h>
 #include <linux/cpufreq.h>
 #include <linux/device.h>
 #include <linux/export.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/opp.h>
+#include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include "arm_big_little.h"
 
-static int dt_init_opp_table(struct device *cpu_dev)
+/* get cpu node with valid operating-points */
+static struct device_node *get_cpu_node_with_valid_op(int cpu)
 {
-        struct device_node *np, *parent;
-        int count = 0, ret;
+        struct device_node *np = NULL, *parent;
+        int count = 0;
 
         parent = of_find_node_by_path("/cpus");
         if (!parent) {
                 pr_err("failed to find OF /cpus\n");
-                return -ENOENT;
+                return NULL;
         }
 
         for_each_child_of_node(parent, np) {
-                if (count++ != cpu_dev->id)
+                if (count++ != cpu)
                         continue;
                 if (!of_get_property(np, "operating-points", NULL)) {
-                        ret = -ENODATA;
-                } else {
-                        cpu_dev->of_node = np;
-                        ret = of_init_opp_table(cpu_dev);
+                        of_node_put(np);
+                        np = NULL;
                 }
-                of_node_put(np);
-                of_node_put(parent);
 
-                return ret;
+                break;
         }
 
-        return -ENODEV;
+        of_node_put(parent);
+        return np;
 }
 
-static int dt_get_transition_latency(struct device *cpu_dev)
+static int dt_init_opp_table(struct device *cpu_dev)
 {
-        struct device_node *np, *parent;
-        u32 transition_latency = CPUFREQ_ETERNAL;
-        int count = 0;
+        struct device_node *np;
+        int ret;
 
-        parent = of_find_node_by_path("/cpus");
-        if (!parent) {
-                pr_err("failed to find OF /cpus\n");
-                return -ENOENT;
-        }
+        np = get_cpu_node_with_valid_op(cpu_dev->id);
+        if (!np)
+                return -ENODATA;
 
-        for_each_child_of_node(parent, np) {
-                if (count++ != cpu_dev->id)
-                        continue;
+        cpu_dev->of_node = np;
+        ret = of_init_opp_table(cpu_dev);
+        of_node_put(np);
 
-                of_property_read_u32(np, "clock-latency", &transition_latency);
-                of_node_put(np);
-                of_node_put(parent);
+        return ret;
+}
 
-                return 0;
-        }
+static int dt_get_transition_latency(struct device *cpu_dev)
+{
+        struct device_node *np;
+        u32 transition_latency = CPUFREQ_ETERNAL;
+
+        np = get_cpu_node_with_valid_op(cpu_dev->id);
+        if (!np)
+                return CPUFREQ_ETERNAL;
 
-        return -ENODEV;
+        of_property_read_u32(np, "clock-latency", &transition_latency);
+        of_node_put(np);
+
+        pr_debug("%s: clock-latency: %d\n", __func__, transition_latency);
+        return transition_latency;
 }
 
 static struct cpufreq_arm_bL_ops dt_bL_ops = {
@@ -90,17 +96,33 @@ static struct cpufreq_arm_bL_ops dt_bL_ops = {
         .init_opp_table = dt_init_opp_table,
 };
 
-static int generic_bL_init(void)
+static int generic_bL_probe(struct platform_device *pdev)
 {
+        struct device_node *np;
+
+        np = get_cpu_node_with_valid_op(0);
+        if (!np)
+                return -ENODEV;
+
+        of_node_put(np);
         return bL_cpufreq_register(&dt_bL_ops);
 }
-module_init(generic_bL_init);
 
-static void generic_bL_exit(void)
+static int generic_bL_remove(struct platform_device *pdev)
 {
-        return bL_cpufreq_unregister(&dt_bL_ops);
+        bL_cpufreq_unregister(&dt_bL_ops);
+        return 0;
 }
-module_exit(generic_bL_exit);
+
+static struct platform_driver generic_bL_platdrv = {
+        .driver = {
+                .name   = "arm-bL-cpufreq-dt",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = generic_bL_probe,
+        .remove         = generic_bL_remove,
+};
+module_platform_driver(generic_bL_platdrv);
 
 MODULE_AUTHOR("Viresh Kumar <viresh.kumar@linaro.org>");
 MODULE_DESCRIPTION("Generic ARM big LITTLE cpufreq driver via DT");
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 3ab8294eab04..a64eb8b70444 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -189,12 +189,29 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
 
         if (!np) {
                 pr_err("failed to find cpu0 node\n");
-                return -ENOENT;
+                ret = -ENOENT;
+                goto out_put_parent;
         }
 
         cpu_dev = &pdev->dev;
         cpu_dev->of_node = np;
 
+        cpu_reg = devm_regulator_get(cpu_dev, "cpu0");
+        if (IS_ERR(cpu_reg)) {
+                /*
+                 * If cpu0 regulator supply node is present, but regulator is
+                 * not yet registered, we should try defering probe.
+                 */
+                if (PTR_ERR(cpu_reg) == -EPROBE_DEFER) {
+                        dev_err(cpu_dev, "cpu0 regulator not ready, retry\n");
+                        ret = -EPROBE_DEFER;
+                        goto out_put_node;
+                }
+                pr_warn("failed to get cpu0 regulator: %ld\n",
+                        PTR_ERR(cpu_reg));
+                cpu_reg = NULL;
+        }
+
         cpu_clk = devm_clk_get(cpu_dev, NULL);
         if (IS_ERR(cpu_clk)) {
                 ret = PTR_ERR(cpu_clk);
@@ -202,12 +219,6 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
                 goto out_put_node;
         }
 
-        cpu_reg = devm_regulator_get(cpu_dev, "cpu0");
-        if (IS_ERR(cpu_reg)) {
-                pr_warn("failed to get cpu0 regulator\n");
-                cpu_reg = NULL;
-        }
-
         ret = of_init_opp_table(cpu_dev);
         if (ret) {
                 pr_err("failed to init OPP table: %d\n", ret);
@@ -264,6 +275,8 @@ out_free_table:
         opp_free_cpufreq_table(cpu_dev, &freq_table);
 out_put_node:
         of_node_put(np);
+out_put_parent:
+        of_node_put(parent);
         return ret;
 }
 
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 1b8a48eaf90f..2d53f47d1747 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1075,14 +1075,14 @@ static int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif
                                 __func__, cpu_dev->id, cpu);
         }
 
+        if ((cpus == 1) && (cpufreq_driver->target))
+                __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT);
+
         pr_debug("%s: removing link, cpu: %d\n", __func__, cpu);
         cpufreq_cpu_put(data);
 
         /* If cpu is last user of policy, free policy */
         if (cpus == 1) {
-                if (cpufreq_driver->target)
-                        __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT);
-
                 lock_policy_rwsem_read(cpu);
                 kobj = &data->kobj;
                 cmp = &data->kobj_unregister;
@@ -1729,18 +1729,23 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data,
                         /* end old governor */
                         if (data->governor) {
                                 __cpufreq_governor(data, CPUFREQ_GOV_STOP);
+                                unlock_policy_rwsem_write(policy->cpu);
                                 __cpufreq_governor(data,
                                                 CPUFREQ_GOV_POLICY_EXIT);
+                                lock_policy_rwsem_write(policy->cpu);
                         }
 
                         /* start new governor */
                         data->governor = policy->governor;
                         if (!__cpufreq_governor(data, CPUFREQ_GOV_POLICY_INIT)) {
-                                if (!__cpufreq_governor(data, CPUFREQ_GOV_START))
+                                if (!__cpufreq_governor(data, CPUFREQ_GOV_START)) {
                                         failed = 0;
-                                else
+                                } else {
+                                        unlock_policy_rwsem_write(policy->cpu);
                                         __cpufreq_governor(data,
                                                         CPUFREQ_GOV_POLICY_EXIT);
+                                        lock_policy_rwsem_write(policy->cpu);
+                                }
                         }
 
                         if (failed) {
@@ -1832,15 +1837,13 @@ static int __cpuinit cpufreq_cpu_callback(struct notifier_block *nfb,
         if (dev) {
                 switch (action) {
                 case CPU_ONLINE:
-                case CPU_ONLINE_FROZEN:
                         cpufreq_add_dev(dev, NULL);
                         break;
                 case CPU_DOWN_PREPARE:
-                case CPU_DOWN_PREPARE_FROZEN:
+                case CPU_UP_CANCELED_FROZEN:
                         __cpufreq_remove_dev(dev, NULL);
                         break;
                 case CPU_DOWN_FAILED:
-                case CPU_DOWN_FAILED_FROZEN:
                         cpufreq_add_dev(dev, NULL);
                         break;
                 }
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 443442df113b..5af40ad82d23 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -255,6 +255,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 if (have_governor_per_policy()) {
                         WARN_ON(dbs_data);
                 } else if (dbs_data) {
+                        dbs_data->usage_count++;
                         policy->governor_data = dbs_data;
                         return 0;
                 }
@@ -266,6 +267,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 }
 
                 dbs_data->cdata = cdata;
+                dbs_data->usage_count = 1;
                 rc = cdata->init(dbs_data);
                 if (rc) {
                         pr_err("%s: POLICY_INIT: init() failed\n", __func__);
@@ -294,7 +296,8 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                 set_sampling_rate(dbs_data, max(dbs_data->min_sampling_rate,
                                         latency * LATENCY_MULTIPLIER));
 
-                if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+                if ((cdata->governor == GOV_CONSERVATIVE) &&
+                                (!policy->governor->initialized)) {
                         struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
 
                         cpufreq_register_notifier(cs_ops->notifier_block,
@@ -306,12 +309,12 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 
                 return 0;
         case CPUFREQ_GOV_POLICY_EXIT:
-                if ((policy->governor->initialized == 1) ||
-                                have_governor_per_policy()) {
+                if (!--dbs_data->usage_count) {
                         sysfs_remove_group(get_governor_parent_kobj(policy),
                                         get_sysfs_attr(dbs_data));
 
-                        if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+                        if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
+                                (policy->governor->initialized == 1)) {
                                 struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
 
                                 cpufreq_unregister_notifier(cs_ops->notifier_block,
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 8ac33538d0bd..e16a96130cb3 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -211,6 +211,7 @@ struct common_dbs_data {
 struct dbs_data {
         struct common_dbs_data *cdata;
         unsigned int min_sampling_rate;
+        int usage_count;
         void *tuners;
 
         /* dbs_mutex protects dbs_enable in governor start/stop */
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index b0ffef96bf77..4b9bb5def6f1 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -547,7 +547,6 @@ static int od_init(struct dbs_data *dbs_data)
         tuners->io_is_busy = should_io_be_busy();
 
         dbs_data->tuners = tuners;
-        pr_info("%s: tuners %p\n", __func__, tuners);
         mutex_init(&dbs_data->mutex);
         return 0;
 }
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index bfd6273fd873..fb65decffa28 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -349,15 +349,16 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
 
         switch (action) {
         case CPU_ONLINE:
-        case CPU_ONLINE_FROZEN:
                 cpufreq_update_policy(cpu);
                 break;
         case CPU_DOWN_PREPARE:
-        case CPU_DOWN_PREPARE_FROZEN:
                 cpufreq_stats_free_sysfs(cpu);
                 break;
         case CPU_DEAD:
-        case CPU_DEAD_FROZEN:
+                cpufreq_stats_free_table(cpu);
+                break;
+        case CPU_UP_CANCELED_FROZEN:
+                cpufreq_stats_free_sysfs(cpu);
                 cpufreq_stats_free_table(cpu);
                 break;
         }
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index cc3a8e6c92be..07f2840ad805 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -48,12 +48,7 @@ static inline int32_t div_fp(int32_t x, int32_t y)
 }
 
 struct sample {
-        ktime_t start_time;
-        ktime_t end_time;
         int core_pct_busy;
-        int pstate_pct_busy;
-        u64 duration_us;
-        u64 idletime_us;
         u64 aperf;
         u64 mperf;
         int freq;
@@ -86,13 +81,9 @@ struct cpudata {
         struct pstate_adjust_policy *pstate_policy;
         struct pstate_data pstate;
         struct _pid pid;
-        struct _pid idle_pid;
 
         int min_pstate_count;
-        int idle_mode;
 
-        ktime_t prev_sample;
-        u64     prev_idle_time_us;
         u64     prev_aperf;
         u64     prev_mperf;
         int     sample_ptr;
@@ -124,6 +115,8 @@ struct perf_limits {
         int min_perf_pct;
         int32_t max_perf;
         int32_t min_perf;
+        int max_policy_pct;
+        int max_sysfs_pct;
 };
 
 static struct perf_limits limits = {
@@ -132,6 +125,8 @@ static struct perf_limits limits = {
         .max_perf = int_tofp(1),
         .min_perf_pct = 0,
         .min_perf = 0,
+        .max_policy_pct = 100,
+        .max_sysfs_pct = 100,
 };
 
 static inline void pid_reset(struct _pid *pid, int setpoint, int busy,
@@ -202,19 +197,6 @@ static inline void intel_pstate_busy_pid_reset(struct cpudata *cpu)
                 0);
 }
 
-static inline void intel_pstate_idle_pid_reset(struct cpudata *cpu)
-{
-        pid_p_gain_set(&cpu->idle_pid, cpu->pstate_policy->p_gain_pct);
-        pid_d_gain_set(&cpu->idle_pid, cpu->pstate_policy->d_gain_pct);
-        pid_i_gain_set(&cpu->idle_pid, cpu->pstate_policy->i_gain_pct);
-
-        pid_reset(&cpu->idle_pid,
-                75,
-                50,
-                cpu->pstate_policy->deadband,
-                0);
-}
-
 static inline void intel_pstate_reset_all_pid(void)
 {
         unsigned int cpu;
@@ -302,7 +284,8 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b,
         if (ret != 1)
                 return -EINVAL;
 
-        limits.max_perf_pct = clamp_t(int, input, 0 , 100);
+        limits.max_sysfs_pct = clamp_t(int, input, 0 , 100);
+        limits.max_perf_pct = min(limits.max_policy_pct, limits.max_sysfs_pct);
         limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100));
         return count;
 }
@@ -408,9 +391,8 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
         if (pstate == cpu->pstate.current_pstate)
                 return;
 
-#ifndef MODULE
         trace_cpu_frequency(pstate * 100000, cpu->cpu);
-#endif
+
         cpu->pstate.current_pstate = pstate;
         wrmsrl(MSR_IA32_PERF_CTL, pstate << 8);
 
@@ -450,48 +432,26 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu,
                                         struct sample *sample)
 {
         u64 core_pct;
-        sample->pstate_pct_busy = 100 - div64_u64(
-                                        sample->idletime_us * 100,
-                                        sample->duration_us);
         core_pct = div64_u64(sample->aperf * 100, sample->mperf);
         sample->freq = cpu->pstate.max_pstate * core_pct * 1000;
 
-        sample->core_pct_busy = div_s64((sample->pstate_pct_busy * core_pct),
-                                        100);
+        sample->core_pct_busy = core_pct;
 }
 
 static inline void intel_pstate_sample(struct cpudata *cpu)
 {
-        ktime_t now;
-        u64 idle_time_us;
         u64 aperf, mperf;
 
-        now = ktime_get();
-        idle_time_us = get_cpu_idle_time_us(cpu->cpu, NULL);
-
         rdmsrl(MSR_IA32_APERF, aperf);
         rdmsrl(MSR_IA32_MPERF, mperf);
-        /* for the first sample, don't actually record a sample, just
-         * set the baseline */
-        if (cpu->prev_idle_time_us > 0) {
-                cpu->sample_ptr = (cpu->sample_ptr + 1) % SAMPLE_COUNT;
-                cpu->samples[cpu->sample_ptr].start_time = cpu->prev_sample;
-                cpu->samples[cpu->sample_ptr].end_time = now;
-                cpu->samples[cpu->sample_ptr].duration_us =
-                        ktime_us_delta(now, cpu->prev_sample);
-                cpu->samples[cpu->sample_ptr].idletime_us =
-                        idle_time_us - cpu->prev_idle_time_us;
-
-                cpu->samples[cpu->sample_ptr].aperf = aperf;
-                cpu->samples[cpu->sample_ptr].mperf = mperf;
-                cpu->samples[cpu->sample_ptr].aperf -= cpu->prev_aperf;
-                cpu->samples[cpu->sample_ptr].mperf -= cpu->prev_mperf;
-
-                intel_pstate_calc_busy(cpu, &cpu->samples[cpu->sample_ptr]);
-        }
+        cpu->sample_ptr = (cpu->sample_ptr + 1) % SAMPLE_COUNT;
+        cpu->samples[cpu->sample_ptr].aperf = aperf;
+        cpu->samples[cpu->sample_ptr].mperf = mperf;
+        cpu->samples[cpu->sample_ptr].aperf -= cpu->prev_aperf;
+        cpu->samples[cpu->sample_ptr].mperf -= cpu->prev_mperf;
+
+        intel_pstate_calc_busy(cpu, &cpu->samples[cpu->sample_ptr]);
 
-        cpu->prev_sample = now;
-        cpu->prev_idle_time_us = idle_time_us;
         cpu->prev_aperf = aperf;
         cpu->prev_mperf = mperf;
 }
@@ -505,16 +465,6 @@ static inline void intel_pstate_set_sample_time(struct cpudata *cpu)
         mod_timer_pinned(&cpu->timer, jiffies + delay);
 }
 
-static inline void intel_pstate_idle_mode(struct cpudata *cpu)
-{
-        cpu->idle_mode = 1;
-}
-
-static inline void intel_pstate_normal_mode(struct cpudata *cpu)
-{
-        cpu->idle_mode = 0;
-}
-
 static inline int intel_pstate_get_scaled_busy(struct cpudata *cpu)
 {
         int32_t busy_scaled;
@@ -547,50 +497,21 @@ static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu)
                 intel_pstate_pstate_decrease(cpu, steps);
 }
 
-static inline void intel_pstate_adjust_idle_pstate(struct cpudata *cpu)
-{
-        int busy_scaled;
-        struct _pid *pid;
-        int ctl = 0;
-        int steps;
-
-        pid = &cpu->idle_pid;
-
-        busy_scaled = intel_pstate_get_scaled_busy(cpu);
-
-        ctl = pid_calc(pid, 100 - busy_scaled);
-
-        steps = abs(ctl);
-        if (ctl < 0)
-                intel_pstate_pstate_decrease(cpu, steps);
-        else
-                intel_pstate_pstate_increase(cpu, steps);
-
-        if (cpu->pstate.current_pstate == cpu->pstate.min_pstate)
-                intel_pstate_normal_mode(cpu);
-}
-
 static void intel_pstate_timer_func(unsigned long __data)
 {
         struct cpudata *cpu = (struct cpudata *) __data;
 
         intel_pstate_sample(cpu);
+        intel_pstate_adjust_busy_pstate(cpu);
 
-        if (!cpu->idle_mode)
-                intel_pstate_adjust_busy_pstate(cpu);
-        else
-                intel_pstate_adjust_idle_pstate(cpu);
-
-#if defined(XPERF_FIX)
         if (cpu->pstate.current_pstate == cpu->pstate.min_pstate) {
                 cpu->min_pstate_count++;
                 if (!(cpu->min_pstate_count % 5)) {
                         intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);
-                        intel_pstate_idle_mode(cpu);
                 }
         } else
                 cpu->min_pstate_count = 0;
-#endif
+
         intel_pstate_set_sample_time(cpu);
 }
 
@@ -600,6 +521,7 @@ static void intel_pstate_timer_func(unsigned long __data)
 static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
         ICPU(0x2a, default_policy),
         ICPU(0x2d, default_policy),
+        ICPU(0x3a, default_policy),
         {}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);
@@ -631,7 +553,6 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
                 (unsigned long)cpu;
         cpu->timer.expires = jiffies + HZ/100;
         intel_pstate_busy_pid_reset(cpu);
-        intel_pstate_idle_pid_reset(cpu);
         intel_pstate_sample(cpu);
         intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);
 
@@ -675,8 +596,9 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
         limits.min_perf_pct = clamp_t(int, limits.min_perf_pct, 0 , 100);
         limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(100));
 
-        limits.max_perf_pct = policy->max * 100 / policy->cpuinfo.max_freq;
-        limits.max_perf_pct = clamp_t(int, limits.max_perf_pct, 0 , 100);
+        limits.max_policy_pct = policy->max * 100 / policy->cpuinfo.max_freq;
+        limits.max_policy_pct = clamp_t(int, limits.max_policy_pct, 0 , 100);
+        limits.max_perf_pct = min(limits.max_policy_pct, limits.max_sysfs_pct);
         limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100));
 
         return 0;
@@ -788,10 +710,9 @@ static int __init intel_pstate_init(void)
 
         pr_info("Intel P-state driver initializing.\n");
 
-        all_cpu_data = vmalloc(sizeof(void *) * num_possible_cpus());
+        all_cpu_data = vzalloc(sizeof(void *) * num_possible_cpus());
         if (!all_cpu_data)
                 return -ENOMEM;
-        memset(all_cpu_data, 0, sizeof(void *) * num_possible_cpus());
 
         rc = cpufreq_register_driver(&intel_pstate_driver);
         if (rc)
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index d36ea8dc96eb..b2644af985ec 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -171,10 +171,6 @@ static int kirkwood_cpufreq_probe(struct platform_device *pdev)
         priv.dev = &pdev->dev;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "Cannot get memory resource\n");
-                return -ENODEV;
-        }
         priv.base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(priv.base))
                 return PTR_ERR(priv.base);
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 84889573b566..d53912768946 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 
 #include <asm/clock.h>
+#include <asm/idle.h>
 
 #include <asm/mach-loongson/loongson.h>
 
@@ -200,6 +201,7 @@ static void loongson2_cpu_wait(void)
         LOONGSON_CHIPCFG0 &= ~0x7;      /* Put CPU into wait mode */
         LOONGSON_CHIPCFG0 = cpu_freq;   /* Restore CPU state */
         spin_unlock_irqrestore(&loongson2_wait_lock, flags);
+        local_irq_enable();
 }
 
 static int __init cpufreq_init(void)
diff --git a/drivers/crypto/nx/nx-aes-cbc.c b/drivers/crypto/nx/nx-aes-cbc.c
index a76d4c4f29f5..35d483f8db66 100644
--- a/drivers/crypto/nx/nx-aes-cbc.c
+++ b/drivers/crypto/nx/nx-aes-cbc.c
@@ -126,6 +126,7 @@ struct crypto_alg nx_cbc_aes_alg = {
         .cra_blocksize   = AES_BLOCK_SIZE,
         .cra_ctxsize     = sizeof(struct nx_crypto_ctx),
         .cra_type        = &crypto_blkcipher_type,
+        .cra_alignmask   = 0xf,
         .cra_module      = THIS_MODULE,
         .cra_init        = nx_crypto_ctx_aes_cbc_init,
         .cra_exit        = nx_crypto_ctx_exit,
diff --git a/drivers/crypto/nx/nx-aes-ecb.c b/drivers/crypto/nx/nx-aes-ecb.c
index ba5f1611336f..7bbc9a81da21 100644
--- a/drivers/crypto/nx/nx-aes-ecb.c
+++ b/drivers/crypto/nx/nx-aes-ecb.c
@@ -123,6 +123,7 @@ struct crypto_alg nx_ecb_aes_alg = {
         .cra_priority    = 300,
         .cra_flags       = CRYPTO_ALG_TYPE_BLKCIPHER,
         .cra_blocksize   = AES_BLOCK_SIZE,
+        .cra_alignmask   = 0xf,
         .cra_ctxsize     = sizeof(struct nx_crypto_ctx),
         .cra_type        = &crypto_blkcipher_type,
         .cra_module      = THIS_MODULE,
diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c
index c8109edc5cfb..6cca6c392b00 100644
--- a/drivers/crypto/nx/nx-aes-gcm.c
+++ b/drivers/crypto/nx/nx-aes-gcm.c
@@ -219,7 +219,7 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc)
         if (enc)
                 NX_CPB_FDM(csbcpb) |= NX_FDM_ENDE_ENCRYPT;
         else
-                nbytes -= AES_BLOCK_SIZE;
+                nbytes -= crypto_aead_authsize(crypto_aead_reqtfm(req));
 
         csbcpb->cpb.aes_gcm.bit_length_data = nbytes * 8;
 
diff --git a/drivers/crypto/nx/nx-sha256.c b/drivers/crypto/nx/nx-sha256.c
index 9767315f8c0b..67024f2f0b78 100644
--- a/drivers/crypto/nx/nx-sha256.c
+++ b/drivers/crypto/nx/nx-sha256.c
@@ -69,7 +69,7 @@ static int nx_sha256_update(struct shash_desc *desc, const u8 *data,
          *  1: <= SHA256_BLOCK_SIZE: copy into state, return 0
          *  2: > SHA256_BLOCK_SIZE: process X blocks, copy in leftover
          */
-        if (len + sctx->count <= SHA256_BLOCK_SIZE) {
+        if (len + sctx->count < SHA256_BLOCK_SIZE) {
                 memcpy(sctx->buf + sctx->count, data, len);
                 sctx->count += len;
                 goto out;
@@ -110,7 +110,8 @@ static int nx_sha256_update(struct shash_desc *desc, const u8 *data,
         atomic_inc(&(nx_ctx->stats->sha256_ops));
 
         /* copy the leftover back into the state struct */
-        memcpy(sctx->buf, data + len - leftover, leftover);
+        if (leftover)
+                memcpy(sctx->buf, data + len - leftover, leftover);
         sctx->count = leftover;
 
         csbcpb->cpb.sha256.message_bit_length += (u64)
@@ -130,6 +131,7 @@ static int nx_sha256_final(struct shash_desc *desc, u8 *out)
         struct nx_sg *in_sg, *out_sg;
         int rc;
 
+
         if (NX_CPB_FDM(csbcpb) & NX_FDM_CONTINUATION) {
                 /* we've hit the nx chip previously, now we're finalizing,
                  * so copy over the partial digest */
@@ -162,7 +164,7 @@ static int nx_sha256_final(struct shash_desc *desc, u8 *out)
 
         atomic_inc(&(nx_ctx->stats->sha256_ops));
 
-        atomic64_add(csbcpb->cpb.sha256.message_bit_length,
+        atomic64_add(csbcpb->cpb.sha256.message_bit_length / 8,
                      &(nx_ctx->stats->sha256_bytes));
         memcpy(out, csbcpb->cpb.sha256.message_digest, SHA256_DIGEST_SIZE);
 out:
diff --git a/drivers/crypto/nx/nx-sha512.c b/drivers/crypto/nx/nx-sha512.c
index 3177b8c3d5f1..08eee1122349 100644
--- a/drivers/crypto/nx/nx-sha512.c
+++ b/drivers/crypto/nx/nx-sha512.c
@@ -69,7 +69,7 @@ static int nx_sha512_update(struct shash_desc *desc, const u8 *data,
          *  1: <= SHA512_BLOCK_SIZE: copy into state, return 0
          *  2: > SHA512_BLOCK_SIZE: process X blocks, copy in leftover
          */
-        if ((u64)len + sctx->count[0] <= SHA512_BLOCK_SIZE) {
+        if ((u64)len + sctx->count[0] < SHA512_BLOCK_SIZE) {
                 memcpy(sctx->buf + sctx->count[0], data, len);
                 sctx->count[0] += len;
                 goto out;
@@ -110,7 +110,8 @@ static int nx_sha512_update(struct shash_desc *desc, const u8 *data,
         atomic_inc(&(nx_ctx->stats->sha512_ops));
 
         /* copy the leftover back into the state struct */
-        memcpy(sctx->buf, data + len - leftover, leftover);
+        if (leftover)
+                memcpy(sctx->buf, data + len - leftover, leftover);
         sctx->count[0] = leftover;
 
         spbc_bits = csbcpb->cpb.sha512.spbc * 8;
@@ -168,7 +169,7 @@ static int nx_sha512_final(struct shash_desc *desc, u8 *out)
                 goto out;
 
         atomic_inc(&(nx_ctx->stats->sha512_ops));
-        atomic64_add(csbcpb->cpb.sha512.message_bit_length_lo,
+        atomic64_add(csbcpb->cpb.sha512.message_bit_length_lo / 8,
                      &(nx_ctx->stats->sha512_bytes));
 
         memcpy(out, csbcpb->cpb.sha512.message_digest, SHA512_DIGEST_SIZE);
diff --git a/drivers/crypto/nx/nx.c b/drivers/crypto/nx/nx.c
index c767f232e693..bbdab6e5ccf0 100644
--- a/drivers/crypto/nx/nx.c
+++ b/drivers/crypto/nx/nx.c
@@ -211,44 +211,20 @@ int nx_build_sg_lists(struct nx_crypto_ctx  *nx_ctx,
 {
         struct nx_sg *nx_insg = nx_ctx->in_sg;
         struct nx_sg *nx_outsg = nx_ctx->out_sg;
-        struct blkcipher_walk walk;
-        int rc;
-
-        blkcipher_walk_init(&walk, dst, src, nbytes);
-        rc = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
-        if (rc)
-                goto out;
 
         if (iv)
-                memcpy(iv, walk.iv, AES_BLOCK_SIZE);
+                memcpy(iv, desc->info, AES_BLOCK_SIZE);
 
-        while (walk.nbytes) {
-                nx_insg = nx_build_sg_list(nx_insg, walk.src.virt.addr,
-                                           walk.nbytes, nx_ctx->ap->sglen);
-                nx_outsg = nx_build_sg_list(nx_outsg, walk.dst.virt.addr,
-                                            walk.nbytes, nx_ctx->ap->sglen);
-
-                rc = blkcipher_walk_done(desc, &walk, 0);
-                if (rc)
-                        break;
-        }
-
-        if (walk.nbytes) {
-                nx_insg = nx_build_sg_list(nx_insg, walk.src.virt.addr,
-                                           walk.nbytes, nx_ctx->ap->sglen);
-                nx_outsg = nx_build_sg_list(nx_outsg, walk.dst.virt.addr,
-                                            walk.nbytes, nx_ctx->ap->sglen);
-
-                rc = 0;
-        }
+        nx_insg = nx_walk_and_build(nx_insg, nx_ctx->ap->sglen, src, 0, nbytes);
+        nx_outsg = nx_walk_and_build(nx_outsg, nx_ctx->ap->sglen, dst, 0, nbytes);
 
         /* these lengths should be negative, which will indicate to phyp that
          * the input and output parameters are scatterlists, not linear
          * buffers */
         nx_ctx->op.inlen = (nx_ctx->in_sg - nx_insg) * sizeof(struct nx_sg);
         nx_ctx->op.outlen = (nx_ctx->out_sg - nx_outsg) * sizeof(struct nx_sg);
-out:
-        return rc;
+
+        return 0;
 }
 
 /**
@@ -454,6 +430,8 @@ static int nx_register_algs(void)
         if (rc)
                 goto out;
 
+        nx_driver.of.status = NX_OKAY;
+
         rc = crypto_register_alg(&nx_ecb_aes_alg);
         if (rc)
                 goto out;
@@ -498,8 +476,6 @@ static int nx_register_algs(void)
         if (rc)
                 goto out_unreg_s512;
 
-        nx_driver.of.status = NX_OKAY;
-
         goto out;
 
 out_unreg_s512:
diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c
index ba6fc62e9651..5a18f82f732a 100644
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -4,7 +4,8 @@
  * Based on of-dma.c
  *
  * Copyright (C) 2013, Intel Corporation
- * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ *          Mika Westerberg <mika.westerberg@linux.intel.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -16,6 +17,7 @@
 #include <linux/list.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
+#include <linux/ioport.h>
 #include <linux/acpi.h>
 #include <linux/acpi_dma.h>
 
@@ -23,6 +25,117 @@ static LIST_HEAD(acpi_dma_list);
 static DEFINE_MUTEX(acpi_dma_lock);
 
 /**
+ * acpi_dma_parse_resource_group - match device and parse resource group
+ * @grp:        CSRT resource group
+ * @adev:       ACPI device to match with
+ * @adma:       struct acpi_dma of the given DMA controller
+ *
+ * Returns 1 on success, 0 when no information is available, or appropriate
+ * errno value on error.
+ *
+ * In order to match a device from DSDT table to the corresponding CSRT device
+ * we use MMIO address and IRQ.
+ */
+static int acpi_dma_parse_resource_group(const struct acpi_csrt_group *grp,
+                struct acpi_device *adev, struct acpi_dma *adma)
+{
+        const struct acpi_csrt_shared_info *si;
+        struct list_head resource_list;
+        struct resource_list_entry *rentry;
+        resource_size_t mem = 0, irq = 0;
+        u32 vendor_id;
+        int ret;
+
+        if (grp->shared_info_length != sizeof(struct acpi_csrt_shared_info))
+                return -ENODEV;
+
+        INIT_LIST_HEAD(&resource_list);
+        ret = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
+        if (ret <= 0)
+                return 0;
+
+        list_for_each_entry(rentry, &resource_list, node) {
+                if (resource_type(&rentry->res) == IORESOURCE_MEM)
+                        mem = rentry->res.start;
+                else if (resource_type(&rentry->res) == IORESOURCE_IRQ)
+                        irq = rentry->res.start;
+        }
+
+        acpi_dev_free_resource_list(&resource_list);
+
+        /* Consider initial zero values as resource not found */
+        if (mem == 0 && irq == 0)
+                return 0;
+
+        si = (const struct acpi_csrt_shared_info *)&grp[1];
+
+        /* Match device by MMIO and IRQ */
+        if (si->mmio_base_low != mem || si->gsi_interrupt != irq)
+                return 0;
+
+        vendor_id = le32_to_cpu(grp->vendor_id);
+        dev_dbg(&adev->dev, "matches with %.4s%04X (rev %u)\n",
+                (char *)&vendor_id, grp->device_id, grp->revision);
+
+        /* Check if the request line range is available */
+        if (si->base_request_line == 0 && si->num_handshake_signals == 0)
+                return 0;
+
+        adma->base_request_line = si->base_request_line;
+        adma->end_request_line = si->base_request_line +
+                                 si->num_handshake_signals - 1;
+
+        dev_dbg(&adev->dev, "request line base: 0x%04x end: 0x%04x\n",
+                adma->base_request_line, adma->end_request_line);
+
+        return 1;
+}
+
+/**
+ * acpi_dma_parse_csrt - parse CSRT to exctract additional DMA resources
+ * @adev:       ACPI device to match with
+ * @adma:       struct acpi_dma of the given DMA controller
+ *
+ * CSRT or Core System Resources Table is a proprietary ACPI table
+ * introduced by Microsoft. This table can contain devices that are not in
+ * the system DSDT table. In particular DMA controllers might be described
+ * here.
+ *
+ * We are using this table to get the request line range of the specific DMA
+ * controller to be used later.
+ *
+ */
+static void acpi_dma_parse_csrt(struct acpi_device *adev, struct acpi_dma *adma)
+{
+        struct acpi_csrt_group *grp, *end;
+        struct acpi_table_csrt *csrt;
+        acpi_status status;
+        int ret;
+
+        status = acpi_get_table(ACPI_SIG_CSRT, 0,
+                                (struct acpi_table_header **)&csrt);
+        if (ACPI_FAILURE(status)) {
+                if (status != AE_NOT_FOUND)
+                        dev_warn(&adev->dev, "failed to get the CSRT table\n");
+                return;
+        }
+
+        grp = (struct acpi_csrt_group *)(csrt + 1);
+        end = (struct acpi_csrt_group *)((void *)csrt + csrt->header.length);
+
+        while (grp < end) {
+                ret = acpi_dma_parse_resource_group(grp, adev, adma);
+                if (ret < 0) {
+                        dev_warn(&adev->dev,
+                                 "error in parsing resource group\n");
+                        return;
+                }
+
+                grp = (struct acpi_csrt_group *)((void *)grp + grp->length);
+        }
+}
+
+/**
  * acpi_dma_controller_register - Register a DMA controller to ACPI DMA helpers
  * @dev:                struct device of DMA controller
  * @acpi_dma_xlate:     translation function which converts a dma specifier
@@ -61,6 +174,8 @@ int acpi_dma_controller_register(struct device *dev,
         adma->acpi_dma_xlate = acpi_dma_xlate;
         adma->data = data;
 
+        acpi_dma_parse_csrt(adev, adma);
+
         /* Now queue acpi_dma controller structure in list */
         mutex_lock(&acpi_dma_lock);
         list_add_tail(&adma->dma_controllers, &acpi_dma_list);
@@ -149,6 +264,45 @@ void devm_acpi_dma_controller_free(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(devm_acpi_dma_controller_free);
 
+/**
+ * acpi_dma_update_dma_spec - prepare dma specifier to pass to translation function
+ * @adma:       struct acpi_dma of DMA controller
+ * @dma_spec:   dma specifier to update
+ *
+ * Returns 0, if no information is avaiable, -1 on mismatch, and 1 otherwise.
+ *
+ * Accordingly to ACPI 5.0 Specification Table 6-170 "Fixed DMA Resource
+ * Descriptor":
+ *      DMA Request Line bits is a platform-relative number uniquely
+ *      identifying the request line assigned. Request line-to-Controller
+ *      mapping is done in a controller-specific OS driver.
+ * That's why we can safely adjust slave_id when the appropriate controller is
+ * found.
+ */
+static int acpi_dma_update_dma_spec(struct acpi_dma *adma,
+                struct acpi_dma_spec *dma_spec)
+{
+        /* Set link to the DMA controller device */
+        dma_spec->dev = adma->dev;
+
+        /* Check if the request line range is available */
+        if (adma->base_request_line == 0 && adma->end_request_line == 0)
+                return 0;
+
+        /* Check if slave_id falls to the range */
+        if (dma_spec->slave_id < adma->base_request_line ||
+            dma_spec->slave_id > adma->end_request_line)
+                return -1;
+
+        /*
+         * Here we adjust slave_id. It should be a relative number to the base
+         * request line.
+         */
+        dma_spec->slave_id -= adma->base_request_line;
+
+        return 1;
+}
+
 struct acpi_dma_parser_data {
         struct acpi_dma_spec dma_spec;
         size_t index;
@@ -193,6 +347,7 @@ struct dma_chan *acpi_dma_request_slave_chan_by_index(struct device *dev,
         struct acpi_device *adev;
         struct acpi_dma *adma;
         struct dma_chan *chan = NULL;
+        int found;
 
         /* Check if the device was enumerated by ACPI */
         if (!dev || !ACPI_HANDLE(dev))
@@ -219,9 +374,20 @@ struct dma_chan *acpi_dma_request_slave_chan_by_index(struct device *dev,
         mutex_lock(&acpi_dma_lock);
 
         list_for_each_entry(adma, &acpi_dma_list, dma_controllers) {
-                dma_spec->dev = adma->dev;
+                /*
+                 * We are not going to call translation function if slave_id
+                 * doesn't fall to the request range.
+                 */
+                found = acpi_dma_update_dma_spec(adma, dma_spec);
+                if (found < 0)
+                        continue;
                 chan = adma->acpi_dma_xlate(dma_spec, adma);
-                if (chan)
+                /*
+                 * Try to get a channel only from the DMA controller that
+                 * matches the slave_id. See acpi_dma_update_dma_spec()
+                 * description for the details.
+                 */
+                if (found > 0 || chan)
                         break;
         }
 
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index ce193409ebd3..33f59ecd256e 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -1273,11 +1273,6 @@ static int tegra_dma_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, tdma);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "No mem resource for DMA\n");
-                return -EINVAL;
-        }
-
         tdma->base_addr = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(tdma->base_addr))
                 return PTR_ERR(tdma->base_addr);
diff --git a/drivers/edac/amd64_edac_inj.c b/drivers/edac/amd64_edac_inj.c
index 8c171fa1cb9b..845f04786c2d 100644
--- a/drivers/edac/amd64_edac_inj.c
+++ b/drivers/edac/amd64_edac_inj.c
@@ -202,9 +202,9 @@ static DEVICE_ATTR(inject_word, S_IRUGO | S_IWUSR,
                    amd64_inject_word_show, amd64_inject_word_store);
 static DEVICE_ATTR(inject_ecc_vector, S_IRUGO | S_IWUSR,
                    amd64_inject_ecc_vector_show, amd64_inject_ecc_vector_store);
-static DEVICE_ATTR(inject_write, S_IRUGO | S_IWUSR,
+static DEVICE_ATTR(inject_write, S_IWUSR,
                    NULL, amd64_inject_write_store);
-static DEVICE_ATTR(inject_read, S_IRUGO | S_IWUSR,
+static DEVICE_ATTR(inject_read,  S_IWUSR,
                    NULL, amd64_inject_read_store);
 
 
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 87d567089f13..573c449c49b9 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -636,7 +636,7 @@ config GPIO_MAX7301
 
 config GPIO_MCP23S08
         tristate "Microchip MCP23xxx I/O expander"
-        depends on SPI_MASTER || I2C
+        depends on (SPI_MASTER && !I2C) || I2C
         help
           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
           I/O expanders.
diff --git a/drivers/gpio/gpio-langwell.c b/drivers/gpio/gpio-langwell.c
index 634c3d37f7b5..62ef10a641c4 100644
--- a/drivers/gpio/gpio-langwell.c
+++ b/drivers/gpio/gpio-langwell.c
@@ -324,6 +324,7 @@ static int lnw_gpio_probe(struct pci_dev *pdev,
         resource_size_t start, len;
         struct lnw_gpio *lnw;
         u32 gpio_base;
+        u32 irq_base;
         int retval;
         int ngpio = id->driver_data;
 
@@ -345,6 +346,7 @@ static int lnw_gpio_probe(struct pci_dev *pdev,
                 retval = -EFAULT;
                 goto err_ioremap;
         }
+        irq_base = *(u32 *)base;
         gpio_base = *((u32 *)base + 1);
         /* release the IO mapping, since we already get the info from bar1 */
         iounmap(base);
@@ -365,13 +367,6 @@ static int lnw_gpio_probe(struct pci_dev *pdev,
                 goto err_ioremap;
         }
 
-        lnw->domain = irq_domain_add_linear(pdev->dev.of_node, ngpio,
-                                            &lnw_gpio_irq_ops, lnw);
-        if (!lnw->domain) {
-                retval = -ENOMEM;
-                goto err_ioremap;
-        }
-
         lnw->reg_base = base;
         lnw->chip.label = dev_name(&pdev->dev);
         lnw->chip.request = lnw_gpio_request;
@@ -384,6 +379,14 @@ static int lnw_gpio_probe(struct pci_dev *pdev,
         lnw->chip.ngpio = ngpio;
         lnw->chip.can_sleep = 0;
         lnw->pdev = pdev;
+
+        lnw->domain = irq_domain_add_simple(pdev->dev.of_node, ngpio, irq_base,
+                                            &lnw_gpio_irq_ops, lnw);
+        if (!lnw->domain) {
+                retval = -ENOMEM;
+                goto err_ioremap;
+        }
+
         pci_set_drvdata(pdev, lnw);
         retval = gpiochip_add(&lnw->chip);
         if (retval) {
diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index b73366523fae..0966f2637ad2 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -496,8 +496,7 @@ err_irq_alloc_descs:
 err_gpiochip_add:
         while (--i >= 0) {
                 chip--;
-                ret = gpiochip_remove(&chip->gpio);
-                if (ret)
+                if (gpiochip_remove(&chip->gpio))
                         dev_err(&pdev->dev, "Failed gpiochip_remove(%d)\n", i);
         }
         kfree(chip_save);
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index bf69a7eff370..3a4816adc137 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -619,11 +619,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
          * per-CPU registers */
         if (soc_variant == MVEBU_GPIO_SOC_VARIANT_ARMADAXP) {
                 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-                if (!res) {
-                        dev_err(&pdev->dev, "Cannot get memory resource\n");
-                        return -ENODEV;
-                }
-
                 mvchip->percpu_membase = devm_ioremap_resource(&pdev->dev,
                                                                res);
                 if (IS_ERR(mvchip->percpu_membase))
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index 25000b0f8453..f8e6af20dfbf 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -326,7 +326,8 @@ static int mxs_gpio_probe(struct platform_device *pdev)
 
         err = bgpio_init(&port->bgc, &pdev->dev, 4,
                          port->base + PINCTRL_DIN(port),
-                         port->base + PINCTRL_DOUT(port), NULL,
+                         port->base + PINCTRL_DOUT(port) + MXS_SET,
+                         port->base + PINCTRL_DOUT(port) + MXS_CLR,
                          port->base + PINCTRL_DOE(port), NULL, 0);
         if (err)
                 goto out_irqdesc_free;
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 2050891d9c65..d3f7d2db870f 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -69,6 +69,7 @@ struct gpio_bank {
         bool is_mpuio;
         bool dbck_flag;
         bool loses_context;
+        bool context_valid;
         int stride;
         u32 width;
         int context_loss_count;
@@ -1128,6 +1129,10 @@ static int omap_gpio_probe(struct platform_device *pdev)
                         bank->loses_context = true;
         } else {
                 bank->loses_context = pdata->loses_context;
+
+                if (bank->loses_context)
+                        bank->get_context_loss_count =
+                                pdata->get_context_loss_count;
         }
 
 
@@ -1178,9 +1183,6 @@ static int omap_gpio_probe(struct platform_device *pdev)
         omap_gpio_chip_init(bank);
         omap_gpio_show_rev(bank);
 
-        if (bank->loses_context)
-                bank->get_context_loss_count = pdata->get_context_loss_count;
-
         pm_runtime_put(bank->dev);
 
         list_add_tail(&bank->node, &omap_gpio_list);
@@ -1259,6 +1261,8 @@ update_gpio_context_count:
         return 0;
 }
 
+static void omap_gpio_init_context(struct gpio_bank *p);
+
 static int omap_gpio_runtime_resume(struct device *dev)
 {
         struct platform_device *pdev = to_platform_device(dev);
@@ -1268,6 +1272,20 @@ static int omap_gpio_runtime_resume(struct device *dev)
         int c;
 
         spin_lock_irqsave(&bank->lock, flags);
+
+        /*
+         * On the first resume during the probe, the context has not
+         * been initialised and so initialise it now. Also initialise
+         * the context loss count.
+         */
+        if (bank->loses_context && !bank->context_valid) {
+                omap_gpio_init_context(bank);
+
+                if (bank->get_context_loss_count)
+                        bank->context_loss_count =
+                                bank->get_context_loss_count(bank->dev);
+        }
+
         _gpio_dbck_enable(bank);
 
         /*
@@ -1384,6 +1402,29 @@ void omap2_gpio_resume_after_idle(void)
 }
 
 #if defined(CONFIG_PM_RUNTIME)
+static void omap_gpio_init_context(struct gpio_bank *p)
+{
+        struct omap_gpio_reg_offs *regs = p->regs;
+        void __iomem *base = p->base;
+
+        p->context.ctrl         = __raw_readl(base + regs->ctrl);
+        p->context.oe           = __raw_readl(base + regs->direction);
+        p->context.wake_en      = __raw_readl(base + regs->wkup_en);
+        p->context.leveldetect0 = __raw_readl(base + regs->leveldetect0);
+        p->context.leveldetect1 = __raw_readl(base + regs->leveldetect1);
+        p->context.risingdetect = __raw_readl(base + regs->risingdetect);
+        p->context.fallingdetect = __raw_readl(base + regs->fallingdetect);
+        p->context.irqenable1   = __raw_readl(base + regs->irqenable);
+        p->context.irqenable2   = __raw_readl(base + regs->irqenable2);
+
+        if (regs->set_dataout && p->regs->clr_dataout)
+                p->context.dataout = __raw_readl(base + regs->set_dataout);
+        else
+                p->context.dataout = __raw_readl(base + regs->dataout);
+
+        p->context_valid = true;
+}
+
 static void omap_gpio_restore_context(struct gpio_bank *bank)
 {
         __raw_writel(bank->context.wake_en,
@@ -1421,6 +1462,7 @@ static void omap_gpio_restore_context(struct gpio_bank *bank)
 #else
 #define omap_gpio_runtime_suspend NULL
 #define omap_gpio_runtime_resume NULL
+static void omap_gpio_init_context(struct gpio_bank *p) {}
 #endif
 
 static const struct dev_pm_ops gpio_pm_ops = {
diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index cdf599687cf7..0fec097e838d 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -424,8 +424,7 @@ end:
 err_request_irq:
         irq_free_descs(irq_base, gpio_pins[chip->ioh]);
 
-        ret = gpiochip_remove(&chip->gpio);
-        if (ret)
+        if (gpiochip_remove(&chip->gpio))
                 dev_err(&pdev->dev, "%s gpiochip_remove failed\n", __func__);
 
 err_gpiochip_add:
diff --git a/drivers/gpio/gpio-sch.c b/drivers/gpio/gpio-sch.c
index 1e4de16ceb41..5af65719b95d 100644
--- a/drivers/gpio/gpio-sch.c
+++ b/drivers/gpio/gpio-sch.c
@@ -272,10 +272,8 @@ static int sch_gpio_probe(struct platform_device *pdev)
         return 0;
 
 err_sch_gpio_resume:
-        err = gpiochip_remove(&sch_gpio_core);
-        if (err)
-                dev_err(&pdev->dev, "%s failed, %d\n",
-                                "gpiochip_remove()", err);
+        if (gpiochip_remove(&sch_gpio_core))
+                dev_err(&pdev->dev, "%s gpiochip_remove failed\n", __func__);
 
 err_sch_gpio_core:
         release_region(res->start, resource_size(res));
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index da4cb5b0cb87..9a62672f1bed 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -463,11 +463,6 @@ static int tegra_gpio_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "Missing MEM resource\n");
-                return -ENODEV;
-        }
-
         regs = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(regs))
                 return PTR_ERR(regs);
diff --git a/drivers/gpio/gpio-viperboard.c b/drivers/gpio/gpio-viperboard.c
index 095ab14cea4d..5ac2919197fe 100644
--- a/drivers/gpio/gpio-viperboard.c
+++ b/drivers/gpio/gpio-viperboard.c
@@ -446,7 +446,8 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
         return ret;
 
 err_gpiob:
-        ret = gpiochip_remove(&vb_gpio->gpioa);
+        if (gpiochip_remove(&vb_gpio->gpioa))
+                dev_err(&pdev->dev, "%s gpiochip_remove failed\n", __func__);
 
 err_gpioa:
         return ret;
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 3a8f7e6db295..e7e92429d10f 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -78,6 +78,10 @@ void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
 {
         struct drm_crtc *crtc;
 
+        /* Locking is currently fubar in the panic handler. */
+        if (oops_in_progress)
+                return;
+
         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
                 WARN_ON(!mutex_is_locked(&crtc->mutex));
 
@@ -246,6 +250,7 @@ char *drm_get_connector_status_name(enum drm_connector_status status)
         else
                 return "unknown";
 }
+EXPORT_SYMBOL(drm_get_connector_status_name);
 
 /**
  * drm_mode_object_get - allocate a new modeset identifier
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index e974f9309b72..ed1334e27c33 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -121,6 +121,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
                 connector->helper_private;
         int count = 0;
         int mode_flags = 0;
+        bool verbose_prune = true;
 
         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id,
                         drm_get_connector_name(connector));
@@ -149,6 +150,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
                 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n",
                         connector->base.id, drm_get_connector_name(connector));
                 drm_mode_connector_update_edid_property(connector, NULL);
+                verbose_prune = false;
                 goto prune;
         }
 
@@ -182,7 +184,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
         }
 
 prune:
-        drm_mode_prune_invalid(dev, &connector->modes, true);
+        drm_mode_prune_invalid(dev, &connector->modes, verbose_prune);
 
         if (list_empty(&connector->modes))
                 return 0;
@@ -1005,12 +1007,20 @@ static void output_poll_execute(struct work_struct *work)
                         continue;
 
                 connector->status = connector->funcs->detect(connector, false);
-                DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
-                              connector->base.id,
-                              drm_get_connector_name(connector),
-                              old_status, connector->status);
-                if (old_status != connector->status)
+                if (old_status != connector->status) {
+                        const char *old, *new;
+
+                        old = drm_get_connector_status_name(old_status);
+                        new = drm_get_connector_status_name(connector->status);
+
+                        DRM_DEBUG_KMS("[CONNECTOR:%d:%s] "
+                                      "status updated from %s to %s\n",
+                                      connector->base.id,
+                                      drm_get_connector_name(connector),
+                                      old, new);
+
                         changed = true;
+                }
         }
 
         mutex_unlock(&dev->mode_config.mutex);
@@ -1083,10 +1093,11 @@ void drm_helper_hpd_irq_event(struct drm_device *dev)
                 old_status = connector->status;
 
                 connector->status = connector->funcs->detect(connector, false);
-                DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
+                DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",
                               connector->base.id,
                               drm_get_connector_name(connector),
-                              old_status, connector->status);
+                              drm_get_connector_status_name(old_status),
+                              drm_get_connector_status_name(connector->status));
                 if (old_status != connector->status)
                         changed = true;
         }
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 8d4f29075af5..9cc247f55502 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -57,7 +57,7 @@ static int drm_version(struct drm_device *dev, void *data,
                        struct drm_file *file_priv);
 
 #define DRM_IOCTL_DEF(ioctl, _func, _flags) \
-        [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0}
+        [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0, .name = #ioctl}
 
 /** Ioctl table */
 static const struct drm_ioctl_desc drm_ioctls[] = {
@@ -375,7 +375,7 @@ long drm_ioctl(struct file *filp,
 {
         struct drm_file *file_priv = filp->private_data;
         struct drm_device *dev;
-        const struct drm_ioctl_desc *ioctl;
+        const struct drm_ioctl_desc *ioctl = NULL;
         drm_ioctl_t *func;
         unsigned int nr = DRM_IOCTL_NR(cmd);
         int retcode = -EINVAL;
@@ -392,11 +392,6 @@ long drm_ioctl(struct file *filp,
         atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
         ++file_priv->ioctl_count;
 
-        DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
-                  task_pid_nr(current), cmd, nr,
-                  (long)old_encode_dev(file_priv->minor->device),
-                  file_priv->authenticated);
-
         if ((nr >= DRM_CORE_IOCTL_COUNT) &&
             ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END)))
                 goto err_i1;
@@ -417,6 +412,11 @@ long drm_ioctl(struct file *filp,
         } else
                 goto err_i1;
 
+        DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n",
+                  task_pid_nr(current),
+                  (long)old_encode_dev(file_priv->minor->device),
+                  file_priv->authenticated, ioctl->name);
+
         /* Do not trust userspace, use our own definition */
         func = ioctl->func;
         /* is there a local override? */
@@ -471,6 +471,12 @@ long drm_ioctl(struct file *filp,
         }
 
       err_i1:
+        if (!ioctl)
+                DRM_DEBUG("invalid iotcl: pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n",
+                          task_pid_nr(current),
+                          (long)old_encode_dev(file_priv->minor->device),
+                          file_priv->authenticated, cmd, nr);
+
         if (kdata != stack_kdata)
                 kfree(kdata);
         atomic_dec(&dev->ioctl_count);
diff --git a/drivers/gpu/drm/drm_encoder_slave.c b/drivers/gpu/drm/drm_encoder_slave.c
index 48c52f7df4e6..0cfb60f54766 100644
--- a/drivers/gpu/drm/drm_encoder_slave.c
+++ b/drivers/gpu/drm/drm_encoder_slave.c
@@ -54,16 +54,12 @@ int drm_i2c_encoder_init(struct drm_device *dev,
                          struct i2c_adapter *adap,
                          const struct i2c_board_info *info)
 {
-        char modalias[sizeof(I2C_MODULE_PREFIX)
-                      + I2C_NAME_SIZE];
         struct module *module = NULL;
         struct i2c_client *client;
         struct drm_i2c_encoder_driver *encoder_drv;
         int err = 0;
 
-        snprintf(modalias, sizeof(modalias),
-                 "%s%s", I2C_MODULE_PREFIX, info->type);
-        request_module(modalias);
+        request_module("%s%s", I2C_MODULE_PREFIX, info->type);
 
         client = i2c_new_device(adap, info);
         if (!client) {
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index db1e2d6f90d7..07cf99cc8862 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -755,33 +755,35 @@ void drm_mm_debug_table(struct drm_mm *mm, const char *prefix)
 EXPORT_SYMBOL(drm_mm_debug_table);
 
 #if defined(CONFIG_DEBUG_FS)
-int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
+static unsigned long drm_mm_dump_hole(struct seq_file *m, struct drm_mm_node *entry)
 {
-        struct drm_mm_node *entry;
-        unsigned long total_used = 0, total_free = 0, total = 0;
         unsigned long hole_start, hole_end, hole_size;
 
-        hole_start = drm_mm_hole_node_start(&mm->head_node);
-        hole_end = drm_mm_hole_node_end(&mm->head_node);
-        hole_size = hole_end - hole_start;
-        if (hole_size)
+        if (entry->hole_follows) {
+                hole_start = drm_mm_hole_node_start(entry);
+                hole_end = drm_mm_hole_node_end(entry);
+                hole_size = hole_end - hole_start;
                 seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: free\n",
                                 hole_start, hole_end, hole_size);
-        total_free += hole_size;
+                return hole_size;
+        }
+
+        return 0;
+}
+
+int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
+{
+        struct drm_mm_node *entry;
+        unsigned long total_used = 0, total_free = 0, total = 0;
+
+        total_free += drm_mm_dump_hole(m, &mm->head_node);
 
         drm_mm_for_each_node(entry, mm) {
                 seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: used\n",
                                 entry->start, entry->start + entry->size,
                                 entry->size);
                 total_used += entry->size;
-                if (entry->hole_follows) {
-                        hole_start = drm_mm_hole_node_start(entry);
-                        hole_end = drm_mm_hole_node_end(entry);
-                        hole_size = hole_end - hole_start;
-                        seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: free\n",
-                                        hole_start, hole_end, hole_size);
-                        total_free += hole_size;
-                }
+                total_free += drm_mm_dump_hole(m, entry);
         }
         total = total_free + total_used;
 
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index faa79df02648..a371ff865a88 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1143,6 +1143,7 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option,
                                 was_digit = false;
                         } else
                                 goto done;
+                        break;
                 case '0' ... '9':
                         was_digit = true;
                         break;
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index bbfc3840080c..6652597586a1 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2005,11 +2005,6 @@ static int hdmi_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                DRM_ERROR("failed to find registers\n");
-                return -ENOENT;
-        }
-
         hdata->regs = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(hdata->regs))
                 return PTR_ERR(hdata->regs);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6be940effefd..6165535d15f0 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1045,6 +1045,8 @@ static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno,
         if (timeout) {
                 struct timespec sleep_time = timespec_sub(now, before);
                 *timeout = timespec_sub(*timeout, sleep_time);
+                if (!timespec_valid(timeout)) /* i.e. negative time remains */
+                        set_normalized_timespec(timeout, 0, 0);
         }
 
         switch (end) {
@@ -1053,8 +1055,6 @@ static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno,
         case -ERESTARTSYS: /* Signal */
                 return (int)end;
         case 0: /* Timeout */
-                if (timeout)
-                        set_normalized_timespec(timeout, 0, 0);
                 return -ETIME;
         default: /* Completed */
                 WARN_ON(end < 0); /* We're not aware of other errors */
@@ -2377,10 +2377,8 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
         mutex_unlock(&dev->struct_mutex);
 
         ret = __wait_seqno(ring, seqno, reset_counter, true, timeout);
-        if (timeout) {
-                WARN_ON(!timespec_valid(timeout));
+        if (timeout)
                 args->timeout_ns = timespec_to_ns(timeout);
-        }
         return ret;
 
 out:
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index dca614de71b6..bdb0d7717bc7 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -709,15 +709,6 @@ static inline size_t gen6_get_stolen_size(u16 snb_gmch_ctl)
         return snb_gmch_ctl << 25; /* 32 MB units */
 }
 
-static inline size_t gen7_get_stolen_size(u16 snb_gmch_ctl)
-{
-        static const int stolen_decoder[] = {
-                0, 0, 0, 0, 0, 32, 48, 64, 128, 256, 96, 160, 224, 352};
-        snb_gmch_ctl >>= IVB_GMCH_GMS_SHIFT;
-        snb_gmch_ctl &= IVB_GMCH_GMS_MASK;
-        return stolen_decoder[snb_gmch_ctl] << 20;
-}
-
 static int gen6_gmch_probe(struct drm_device *dev,
                            size_t *gtt_total,
                            size_t *stolen,
@@ -747,11 +738,7 @@ static int gen6_gmch_probe(struct drm_device *dev,
         pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &snb_gmch_ctl);
         gtt_size = gen6_get_total_gtt_size(snb_gmch_ctl);
 
-        if (IS_GEN7(dev) && !IS_VALLEYVIEW(dev))
-                *stolen = gen7_get_stolen_size(snb_gmch_ctl);
-        else
-                *stolen = gen6_get_stolen_size(snb_gmch_ctl);
-
+        *stolen = gen6_get_stolen_size(snb_gmch_ctl);
         *gtt_total = (gtt_size / sizeof(gen6_gtt_pte_t)) << PAGE_SHIFT;
 
         /* For Modern GENs the PTEs and register space are split in the BAR */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 83f9c26e1adb..2d6b62e42daf 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -46,8 +46,6 @@
 #define    SNB_GMCH_GGMS_MASK   0x3
 #define    SNB_GMCH_GMS_SHIFT   3 /* Graphics Mode Select */
 #define    SNB_GMCH_GMS_MASK    0x1f
-#define    IVB_GMCH_GMS_SHIFT   4
-#define    IVB_GMCH_GMS_MASK    0xf
 
 
 /* PCI config space */
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 26a0a570f92e..fb961bb81903 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1265,6 +1265,8 @@ static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder)
                 intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
                 intel_dp_start_link_train(intel_dp);
                 intel_dp_complete_link_train(intel_dp);
+                if (port != PORT_A)
+                        intel_dp_stop_link_train(intel_dp);
         }
 }
 
@@ -1326,6 +1328,9 @@ static void intel_enable_ddi(struct intel_encoder *intel_encoder)
         } else if (type == INTEL_OUTPUT_EDP) {
                 struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 
+                if (port == PORT_A)
+                        intel_dp_stop_link_train(intel_dp);
+
                 ironlake_edp_backlight_on(intel_dp);
         }
 
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index fb2fbc1e08b9..3d704b706a8d 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -702,6 +702,9 @@ intel_dp_compute_config(struct intel_encoder *encoder,
         /* Walk through all bpp values. Luckily they're all nicely spaced with 2
          * bpc in between. */
         bpp = min_t(int, 8*3, pipe_config->pipe_bpp);
+        if (is_edp(intel_dp) && dev_priv->edp.bpp)
+                bpp = min_t(int, bpp, dev_priv->edp.bpp);
+
         for (; bpp >= 6*3; bpp -= 2*3) {
                 mode_rate = intel_dp_link_required(target_clock, bpp);
 
@@ -739,6 +742,7 @@ found:
         intel_dp->link_bw = bws[clock];
         intel_dp->lane_count = lane_count;
         adjusted_mode->clock = drm_dp_bw_code_to_link_rate(intel_dp->link_bw);
+        pipe_config->pipe_bpp = bpp;
         pipe_config->pixel_target_clock = target_clock;
 
         DRM_DEBUG_KMS("DP link bw %02x lane count %d clock %d bpp %d\n",
@@ -751,20 +755,6 @@ found:
                                target_clock, adjusted_mode->clock,
                                &pipe_config->dp_m_n);
 
-        /*
-         * XXX: We have a strange regression where using the vbt edp bpp value
-         * for the link bw computation results in black screens, the panel only
-         * works when we do the computation at the usual 24bpp (but still
-         * requires us to use 18bpp). Until that's fully debugged, stay
-         * bug-for-bug compatible with the old code.
-         */
-        if (is_edp(intel_dp) && dev_priv->edp.bpp) {
-                DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n",
-                              bpp, dev_priv->edp.bpp);
-                bpp = min_t(int, bpp, dev_priv->edp.bpp);
-        }
-        pipe_config->pipe_bpp = bpp;
-
         return true;
 }
 
@@ -1389,6 +1379,7 @@ static void intel_enable_dp(struct intel_encoder *encoder)
         ironlake_edp_panel_on(intel_dp);
         ironlake_edp_panel_vdd_off(intel_dp, true);
         intel_dp_complete_link_train(intel_dp);
+        intel_dp_stop_link_train(intel_dp);
         ironlake_edp_backlight_on(intel_dp);
 }
 
@@ -1711,10 +1702,9 @@ intel_dp_set_link_train(struct intel_dp *intel_dp,
         struct drm_i915_private *dev_priv = dev->dev_private;
         enum port port = intel_dig_port->port;
         int ret;
-        uint32_t temp;
 
         if (HAS_DDI(dev)) {
-                temp = I915_READ(DP_TP_CTL(port));
+                uint32_t temp = I915_READ(DP_TP_CTL(port));
 
                 if (dp_train_pat & DP_LINK_SCRAMBLING_DISABLE)
                         temp |= DP_TP_CTL_SCRAMBLE_DISABLE;
@@ -1724,18 +1714,6 @@ intel_dp_set_link_train(struct intel_dp *intel_dp,
                 temp &= ~DP_TP_CTL_LINK_TRAIN_MASK;
                 switch (dp_train_pat & DP_TRAINING_PATTERN_MASK) {
                 case DP_TRAINING_PATTERN_DISABLE:
-
-                        if (port != PORT_A) {
-                                temp |= DP_TP_CTL_LINK_TRAIN_IDLE;
-                                I915_WRITE(DP_TP_CTL(port), temp);
-
-                                if (wait_for((I915_READ(DP_TP_STATUS(port)) &
-                                              DP_TP_STATUS_IDLE_DONE), 1))
-                                        DRM_ERROR("Timed out waiting for DP idle patterns\n");
-
-                                temp &= ~DP_TP_CTL_LINK_TRAIN_MASK;
-                        }
-
                         temp |= DP_TP_CTL_LINK_TRAIN_NORMAL;
 
                         break;
@@ -1811,6 +1789,37 @@ intel_dp_set_link_train(struct intel_dp *intel_dp,
         return true;
 }
 
+static void intel_dp_set_idle_link_train(struct intel_dp *intel_dp)
+{
+        struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
+        struct drm_device *dev = intel_dig_port->base.base.dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        enum port port = intel_dig_port->port;
+        uint32_t val;
+
+        if (!HAS_DDI(dev))
+                return;
+
+        val = I915_READ(DP_TP_CTL(port));
+        val &= ~DP_TP_CTL_LINK_TRAIN_MASK;
+        val |= DP_TP_CTL_LINK_TRAIN_IDLE;
+        I915_WRITE(DP_TP_CTL(port), val);
+
+        /*
+         * On PORT_A we can have only eDP in SST mode. There the only reason
+         * we need to set idle transmission mode is to work around a HW issue
+         * where we enable the pipe while not in idle link-training mode.
+         * In this case there is requirement to wait for a minimum number of
+         * idle patterns to be sent.
+         */
+        if (port == PORT_A)
+                return;
+
+        if (wait_for((I915_READ(DP_TP_STATUS(port)) & DP_TP_STATUS_IDLE_DONE),
+                     1))
+                DRM_ERROR("Timed out waiting for DP idle patterns\n");
+}
+
 /* Enable corresponding port and start training pattern 1 */
 void
 intel_dp_start_link_train(struct intel_dp *intel_dp)
@@ -1953,10 +1962,19 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
                 ++tries;
         }
 
+        intel_dp_set_idle_link_train(intel_dp);
+
+        intel_dp->DP = DP;
+
         if (channel_eq)
                 DRM_DEBUG_KMS("Channel EQ done. DP Training successful\n");
 
-        intel_dp_set_link_train(intel_dp, DP, DP_TRAINING_PATTERN_DISABLE);
+}
+
+void intel_dp_stop_link_train(struct intel_dp *intel_dp)
+{
+        intel_dp_set_link_train(intel_dp, intel_dp->DP,
+                                DP_TRAINING_PATTERN_DISABLE);
 }
 
 static void
@@ -2164,6 +2182,7 @@ intel_dp_check_link_status(struct intel_dp *intel_dp)
                               drm_get_encoder_name(&intel_encoder->base));
                 intel_dp_start_link_train(intel_dp);
                 intel_dp_complete_link_train(intel_dp);
+                intel_dp_stop_link_train(intel_dp);
         }
 }
 
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index b5b6d19e6dd3..624a9e6b8d71 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -499,6 +499,7 @@ extern void intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 extern void intel_dp_init_link_config(struct intel_dp *intel_dp);
 extern void intel_dp_start_link_train(struct intel_dp *intel_dp);
 extern void intel_dp_complete_link_train(struct intel_dp *intel_dp);
+extern void intel_dp_stop_link_train(struct intel_dp *intel_dp);
 extern void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
 extern void intel_dp_encoder_destroy(struct drm_encoder *encoder);
 extern void intel_dp_check_link_status(struct intel_dp *intel_dp);
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 0e19e575a1b4..6b7c3ca2c035 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -262,10 +262,22 @@ void intel_fbdev_fini(struct drm_device *dev)
 void intel_fbdev_set_suspend(struct drm_device *dev, int state)
 {
         drm_i915_private_t *dev_priv = dev->dev_private;
-        if (!dev_priv->fbdev)
+        struct intel_fbdev *ifbdev = dev_priv->fbdev;
+        struct fb_info *info;
+
+        if (!ifbdev)
                 return;
 
-        fb_set_suspend(dev_priv->fbdev->helper.fbdev, state);
+        info = ifbdev->helper.fbdev;
+
+        /* On resume from hibernation: If the object is shmemfs backed, it has
+         * been restored from swap. If the object is stolen however, it will be
+         * full of whatever garbage was left in there.
+         */
+        if (!state && ifbdev->ifb.obj->stolen)
+                memset_io(info->screen_base, 0, info->screen_size);
+
+        fb_set_suspend(info, state);
 }
 
 MODULE_LICENSE("GPL and additional rights");
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index de3b0dc5658b..aa01128ff192 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1301,17 +1301,17 @@ static void valleyview_update_wm(struct drm_device *dev)
 
         vlv_update_drain_latency(dev);
 
-        if (g4x_compute_wm0(dev, 0,
+        if (g4x_compute_wm0(dev, PIPE_A,
                             &valleyview_wm_info, latency_ns,
                             &valleyview_cursor_wm_info, latency_ns,
                             &planea_wm, &cursora_wm))
-                enabled |= 1;
+                enabled |= 1 << PIPE_A;
 
-        if (g4x_compute_wm0(dev, 1,
+        if (g4x_compute_wm0(dev, PIPE_B,
                             &valleyview_wm_info, latency_ns,
                             &valleyview_cursor_wm_info, latency_ns,
                             &planeb_wm, &cursorb_wm))
-                enabled |= 2;
+                enabled |= 1 << PIPE_B;
 
         if (single_plane_enabled(enabled) &&
             g4x_compute_srwm(dev, ffs(enabled) - 1,
@@ -1357,17 +1357,17 @@ static void g4x_update_wm(struct drm_device *dev)
         int plane_sr, cursor_sr;
         unsigned int enabled = 0;
 
-        if (g4x_compute_wm0(dev, 0,
+        if (g4x_compute_wm0(dev, PIPE_A,
                             &g4x_wm_info, latency_ns,
                             &g4x_cursor_wm_info, latency_ns,
                             &planea_wm, &cursora_wm))
-                enabled |= 1;
+                enabled |= 1 << PIPE_A;
 
-        if (g4x_compute_wm0(dev, 1,
+        if (g4x_compute_wm0(dev, PIPE_B,
                             &g4x_wm_info, latency_ns,
                             &g4x_cursor_wm_info, latency_ns,
                             &planeb_wm, &cursorb_wm))
-                enabled |= 2;
+                enabled |= 1 << PIPE_B;
 
         if (single_plane_enabled(enabled) &&
             g4x_compute_srwm(dev, ffs(enabled) - 1,
@@ -1716,7 +1716,7 @@ static void ironlake_update_wm(struct drm_device *dev)
         unsigned int enabled;
 
         enabled = 0;
-        if (g4x_compute_wm0(dev, 0,
+        if (g4x_compute_wm0(dev, PIPE_A,
                             &ironlake_display_wm_info,
                             ILK_LP0_PLANE_LATENCY,
                             &ironlake_cursor_wm_info,
@@ -1727,10 +1727,10 @@ static void ironlake_update_wm(struct drm_device *dev)
                 DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
                               " plane %d, " "cursor: %d\n",
                               plane_wm, cursor_wm);
-                enabled |= 1;
+                enabled |= 1 << PIPE_A;
         }
 
-        if (g4x_compute_wm0(dev, 1,
+        if (g4x_compute_wm0(dev, PIPE_B,
                             &ironlake_display_wm_info,
                             ILK_LP0_PLANE_LATENCY,
                             &ironlake_cursor_wm_info,
@@ -1741,7 +1741,7 @@ static void ironlake_update_wm(struct drm_device *dev)
                 DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
                               " plane %d, cursor: %d\n",
                               plane_wm, cursor_wm);
-                enabled |= 2;
+                enabled |= 1 << PIPE_B;
         }
 
         /*
@@ -1801,7 +1801,7 @@ static void sandybridge_update_wm(struct drm_device *dev)
         unsigned int enabled;
 
         enabled = 0;
-        if (g4x_compute_wm0(dev, 0,
+        if (g4x_compute_wm0(dev, PIPE_A,
                             &sandybridge_display_wm_info, latency,
                             &sandybridge_cursor_wm_info, latency,
                             &plane_wm, &cursor_wm)) {
@@ -1812,10 +1812,10 @@ static void sandybridge_update_wm(struct drm_device *dev)
                 DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
                               " plane %d, " "cursor: %d\n",
                               plane_wm, cursor_wm);
-                enabled |= 1;
+                enabled |= 1 << PIPE_A;
         }
 
-        if (g4x_compute_wm0(dev, 1,
+        if (g4x_compute_wm0(dev, PIPE_B,
                             &sandybridge_display_wm_info, latency,
                             &sandybridge_cursor_wm_info, latency,
                             &plane_wm, &cursor_wm)) {
@@ -1826,7 +1826,7 @@ static void sandybridge_update_wm(struct drm_device *dev)
                 DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
                               " plane %d, cursor: %d\n",
                               plane_wm, cursor_wm);
-                enabled |= 2;
+                enabled |= 1 << PIPE_B;
         }
 
         /*
@@ -1904,7 +1904,7 @@ static void ivybridge_update_wm(struct drm_device *dev)
         unsigned int enabled;
 
         enabled = 0;
-        if (g4x_compute_wm0(dev, 0,
+        if (g4x_compute_wm0(dev, PIPE_A,
                             &sandybridge_display_wm_info, latency,
                             &sandybridge_cursor_wm_info, latency,
                             &plane_wm, &cursor_wm)) {
@@ -1915,10 +1915,10 @@ static void ivybridge_update_wm(struct drm_device *dev)
                 DRM_DEBUG_KMS("FIFO watermarks For pipe A -"
                               " plane %d, " "cursor: %d\n",
                               plane_wm, cursor_wm);
-                enabled |= 1;
+                enabled |= 1 << PIPE_A;
         }
 
-        if (g4x_compute_wm0(dev, 1,
+        if (g4x_compute_wm0(dev, PIPE_B,
                             &sandybridge_display_wm_info, latency,
                             &sandybridge_cursor_wm_info, latency,
                             &plane_wm, &cursor_wm)) {
@@ -1929,10 +1929,10 @@ static void ivybridge_update_wm(struct drm_device *dev)
                 DRM_DEBUG_KMS("FIFO watermarks For pipe B -"
                               " plane %d, cursor: %d\n",
                               plane_wm, cursor_wm);
-                enabled |= 2;
+                enabled |= 1 << PIPE_B;
         }
 
-        if (g4x_compute_wm0(dev, 2,
+        if (g4x_compute_wm0(dev, PIPE_C,
                             &sandybridge_display_wm_info, latency,
                             &sandybridge_cursor_wm_info, latency,
                             &plane_wm, &cursor_wm)) {
@@ -1943,7 +1943,7 @@ static void ivybridge_update_wm(struct drm_device *dev)
                 DRM_DEBUG_KMS("FIFO watermarks For pipe C -"
                               " plane %d, cursor: %d\n",
                               plane_wm, cursor_wm);
-                enabled |= 3;
+                enabled |= 1 << PIPE_C;
         }
 
         /*
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index f9889658329b..77b8a45fb10a 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -46,29 +46,26 @@ static void mga_crtc_load_lut(struct drm_crtc *crtc)
 
 static inline void mga_wait_vsync(struct mga_device *mdev)
 {
-        unsigned int count = 0;
+        unsigned long timeout = jiffies + HZ/10;
         unsigned int status = 0;
 
         do {
                 status = RREG32(MGAREG_Status);
-                count++;
-        } while ((status & 0x08) && (count < 250000));
-        count = 0;
+        } while ((status & 0x08) && time_before(jiffies, timeout));
+        timeout = jiffies + HZ/10;
         status = 0;
         do {
                 status = RREG32(MGAREG_Status);
-                count++;
-        } while (!(status & 0x08) && (count < 250000));
+        } while (!(status & 0x08) && time_before(jiffies, timeout));
 }
 
 static inline void mga_wait_busy(struct mga_device *mdev)
 {
-        unsigned int count = 0;
+        unsigned long timeout = jiffies + HZ;
         unsigned int status = 0;
         do {
                 status = RREG8(MGAREG_Status + 2);
-                count++;
-        } while ((status & 0x01) && (count < 500000));
+        } while ((status & 0x01) && time_before(jiffies, timeout));
 }
 
 /*
@@ -189,12 +186,12 @@ static int mga_g200wb_set_plls(struct mga_device *mdev, long clock)
                 WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
                 tmp = RREG8(DAC_DATA);
                 tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS;
-                WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 WREG8(DAC_INDEX, MGA1064_REMHEADCTL);
                 tmp = RREG8(DAC_DATA);
                 tmp |= MGA1064_REMHEADCTL_CLKDIS;
-                WREG_DAC(MGA1064_REMHEADCTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 /* select PLL Set C */
                 tmp = RREG8(MGAREG_MEM_MISC_READ);
@@ -204,7 +201,7 @@ static int mga_g200wb_set_plls(struct mga_device *mdev, long clock)
                 WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
                 tmp = RREG8(DAC_DATA);
                 tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN | 0x80;
-                WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 udelay(500);
 
@@ -212,7 +209,7 @@ static int mga_g200wb_set_plls(struct mga_device *mdev, long clock)
                 WREG8(DAC_INDEX, MGA1064_VREF_CTL);
                 tmp = RREG8(DAC_DATA);
                 tmp &= ~0x04;
-                WREG_DAC(MGA1064_VREF_CTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 udelay(50);
 
@@ -236,13 +233,13 @@ static int mga_g200wb_set_plls(struct mga_device *mdev, long clock)
                 tmp = RREG8(DAC_DATA);
                 tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK;
                 tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL;
-                WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 WREG8(DAC_INDEX, MGA1064_REMHEADCTL);
                 tmp = RREG8(DAC_DATA);
                 tmp &= ~MGA1064_REMHEADCTL_CLKSL_MSK;
                 tmp |= MGA1064_REMHEADCTL_CLKSL_PLL;
-                WREG_DAC(MGA1064_REMHEADCTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 /* reset dotclock rate bit */
                 WREG8(MGAREG_SEQ_INDEX, 1);
@@ -253,7 +250,7 @@ static int mga_g200wb_set_plls(struct mga_device *mdev, long clock)
                 WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
                 tmp = RREG8(DAC_DATA);
                 tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS;
-                WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 vcount = RREG8(MGAREG_VCOUNT);
 
@@ -318,7 +315,7 @@ static int mga_g200ev_set_plls(struct mga_device *mdev, long clock)
         WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
         tmp = RREG8(DAC_DATA);
         tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS;
-        WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp);
+        WREG8(DAC_DATA, tmp);
 
         tmp = RREG8(MGAREG_MEM_MISC_READ);
         tmp |= 0x3 << 2;
@@ -326,12 +323,12 @@ static int mga_g200ev_set_plls(struct mga_device *mdev, long clock)
 
         WREG8(DAC_INDEX, MGA1064_PIX_PLL_STAT);
         tmp = RREG8(DAC_DATA);
-        WREG_DAC(MGA1064_PIX_PLL_STAT, tmp & ~0x40);
+        WREG8(DAC_DATA, tmp & ~0x40);
 
         WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
         tmp = RREG8(DAC_DATA);
         tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
-        WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+        WREG8(DAC_DATA, tmp);
 
         WREG_DAC(MGA1064_EV_PIX_PLLC_M, m);
         WREG_DAC(MGA1064_EV_PIX_PLLC_N, n);
@@ -342,7 +339,7 @@ static int mga_g200ev_set_plls(struct mga_device *mdev, long clock)
         WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
         tmp = RREG8(DAC_DATA);
         tmp &= ~MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
-        WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+        WREG8(DAC_DATA, tmp);
 
         udelay(500);
 
@@ -350,11 +347,11 @@ static int mga_g200ev_set_plls(struct mga_device *mdev, long clock)
         tmp = RREG8(DAC_DATA);
         tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK;
         tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL;
-        WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+        WREG8(DAC_DATA, tmp);
 
         WREG8(DAC_INDEX, MGA1064_PIX_PLL_STAT);
         tmp = RREG8(DAC_DATA);
-        WREG_DAC(MGA1064_PIX_PLL_STAT, tmp | 0x40);
+        WREG8(DAC_DATA, tmp | 0x40);
 
         tmp = RREG8(MGAREG_MEM_MISC_READ);
         tmp |= (0x3 << 2);
@@ -363,7 +360,7 @@ static int mga_g200ev_set_plls(struct mga_device *mdev, long clock)
         WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
         tmp = RREG8(DAC_DATA);
         tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS;
-        WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+        WREG8(DAC_DATA, tmp);
 
         return 0;
 }
@@ -416,7 +413,7 @@ static int mga_g200eh_set_plls(struct mga_device *mdev, long clock)
                 WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
                 tmp = RREG8(DAC_DATA);
                 tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS;
-                WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 tmp = RREG8(MGAREG_MEM_MISC_READ);
                 tmp |= 0x3 << 2;
@@ -425,7 +422,7 @@ static int mga_g200eh_set_plls(struct mga_device *mdev, long clock)
                 WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
                 tmp = RREG8(DAC_DATA);
                 tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
-                WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 udelay(500);
 
@@ -439,13 +436,13 @@ static int mga_g200eh_set_plls(struct mga_device *mdev, long clock)
                 tmp = RREG8(DAC_DATA);
                 tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK;
                 tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL;
-                WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
                 tmp = RREG8(DAC_DATA);
                 tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS;
                 tmp &= ~MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
-                WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+                WREG8(DAC_DATA, tmp);
 
                 vcount = RREG8(MGAREG_VCOUNT);
 
@@ -515,12 +512,12 @@ static int mga_g200er_set_plls(struct mga_device *mdev, long clock)
         WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
         tmp = RREG8(DAC_DATA);
         tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS;
-        WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp);
+        WREG8(DAC_DATA, tmp);
 
         WREG8(DAC_INDEX, MGA1064_REMHEADCTL);
         tmp = RREG8(DAC_DATA);
         tmp |= MGA1064_REMHEADCTL_CLKDIS;
-        WREG_DAC(MGA1064_REMHEADCTL, tmp);
+        WREG8(DAC_DATA, tmp);
 
         tmp = RREG8(MGAREG_MEM_MISC_READ);
         tmp |= (0x3<<2) | 0xc0;
@@ -530,7 +527,7 @@ static int mga_g200er_set_plls(struct mga_device *mdev, long clock)
         tmp = RREG8(DAC_DATA);
         tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS;
         tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
-        WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+        WREG8(DAC_DATA, tmp);
 
         udelay(500);
 
@@ -657,12 +654,26 @@ static void mga_g200wb_commit(struct drm_crtc *crtc)
         WREG_DAC(MGA1064_GEN_IO_DATA, tmp);
 }
 
-
+/*
+   This is how the framebuffer base address is stored in g200 cards:
+   * Assume @offset is the gpu_addr variable of the framebuffer object
+   * Then addr is the number of _pixels_ (not bytes) from the start of
+     VRAM to the first pixel we want to display. (divided by 2 for 32bit
+     framebuffers)
+   * addr is stored in the CRTCEXT0, CRTCC and CRTCD registers
+   addr<20> -> CRTCEXT0<6>
+   addr<19-16> -> CRTCEXT0<3-0>
+   addr<15-8> -> CRTCC<7-0>
+   addr<7-0> -> CRTCD<7-0>
+   CRTCEXT0 has to be programmed last to trigger an update and make the
+   new addr variable take effect.
+ */
 void mga_set_start_address(struct drm_crtc *crtc, unsigned offset)
 {
         struct mga_device *mdev = crtc->dev->dev_private;
         u32 addr;
         int count;
+        u8 crtcext0;
 
         while (RREG8(0x1fda) & 0x08);
         while (!(RREG8(0x1fda) & 0x08));
@@ -670,10 +681,17 @@ void mga_set_start_address(struct drm_crtc *crtc, unsigned offset)
         count = RREG8(MGAREG_VCOUNT) + 2;
         while (RREG8(MGAREG_VCOUNT) < count);
 
-        addr = offset >> 2;
+        WREG8(MGAREG_CRTCEXT_INDEX, 0);
+        crtcext0 = RREG8(MGAREG_CRTCEXT_DATA);
+        crtcext0 &= 0xB0;
+        addr = offset / 8;
+        /* Can't store addresses any higher than that...
+           but we also don't have more than 16MB of memory, so it should be fine. */
+        WARN_ON(addr > 0x1fffff);
+        crtcext0 |= (!!(addr & (1<<20)))<<6;
         WREG_CRT(0x0d, (u8)(addr & 0xff));
         WREG_CRT(0x0c, (u8)(addr >> 8) & 0xff);
-        WREG_CRT(0xaf, (u8)(addr >> 16) & 0xf);
+        WREG_ECRT(0x0, ((u8)(addr >> 16) & 0xf) | crtcext0);
 }
 
 
@@ -829,11 +847,7 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
 
 
         for (i = 0; i < sizeof(dacvalue); i++) {
-                if ((i <= 0x03) ||
-                    (i == 0x07) ||
-                    (i == 0x0b) ||
-                    (i == 0x0f) ||
-                    ((i >= 0x13) && (i <= 0x17)) ||
+                if ((i <= 0x17) ||
                     (i == 0x1b) ||
                     (i == 0x1c) ||
                     ((i >= 0x1f) && (i <= 0x29)) ||
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
index 955af122c3a6..a36e64e98ef3 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
@@ -138,7 +138,6 @@ nvc0_identify(struct nouveau_device *device)
                 device->oclass[NVDEV_ENGINE_BSP    ] = &nvc0_bsp_oclass;
                 device->oclass[NVDEV_ENGINE_PPP    ] = &nvc0_ppp_oclass;
                 device->oclass[NVDEV_ENGINE_COPY0  ] = &nvc0_copy0_oclass;
-                device->oclass[NVDEV_ENGINE_COPY1  ] = &nvc0_copy1_oclass;
                 device->oclass[NVDEV_ENGINE_DISP   ] = &nva3_disp_oclass;
                 break;
         case 0xce:
@@ -225,7 +224,6 @@ nvc0_identify(struct nouveau_device *device)
                 device->oclass[NVDEV_ENGINE_BSP    ] = &nvc0_bsp_oclass;
                 device->oclass[NVDEV_ENGINE_PPP    ] = &nvc0_ppp_oclass;
                 device->oclass[NVDEV_ENGINE_COPY0  ] = &nvc0_copy0_oclass;
-                device->oclass[NVDEV_ENGINE_COPY1  ] = &nvc0_copy1_oclass;
                 device->oclass[NVDEV_ENGINE_DISP   ] = &nva3_disp_oclass;
                 break;
         case 0xc8:
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c
index ddaeb5572903..89bf459d584b 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c
@@ -47,6 +47,7 @@ nv50_fifo_playlist_update(struct nv50_fifo_priv *priv)
         struct nouveau_gpuobj *cur;
         int i, p;
 
+        mutex_lock(&nv_subdev(priv)->mutex);
         cur = priv->playlist[priv->cur_playlist];
         priv->cur_playlist = !priv->cur_playlist;
 
@@ -60,6 +61,7 @@ nv50_fifo_playlist_update(struct nv50_fifo_priv *priv)
         nv_wr32(priv, 0x0032f4, cur->addr >> 12);
         nv_wr32(priv, 0x0032ec, p);
         nv_wr32(priv, 0x002500, 0x00000101);
+        mutex_unlock(&nv_subdev(priv)->mutex);
 }
 
 static int
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
index 4d4a6b905370..46dfa68c47bb 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
@@ -71,6 +71,7 @@ nvc0_fifo_playlist_update(struct nvc0_fifo_priv *priv)
         struct nouveau_gpuobj *cur;
         int i, p;
 
+        mutex_lock(&nv_subdev(priv)->mutex);
         cur = priv->playlist[priv->cur_playlist];
         priv->cur_playlist = !priv->cur_playlist;
 
@@ -87,6 +88,7 @@ nvc0_fifo_playlist_update(struct nvc0_fifo_priv *priv)
         nv_wr32(priv, 0x002274, 0x01f00000 | (p >> 3));
         if (!nv_wait(priv, 0x00227c, 0x00100000, 0x00000000))
                 nv_error(priv, "playlist update failed\n");
+        mutex_unlock(&nv_subdev(priv)->mutex);
 }
 
 static int
@@ -248,9 +250,17 @@ nvc0_fifo_chan_fini(struct nouveau_object *object, bool suspend)
         struct nvc0_fifo_priv *priv = (void *)object->engine;
         struct nvc0_fifo_chan *chan = (void *)object;
         u32 chid = chan->base.chid;
+        u32 mask, engine;
 
         nv_mask(priv, 0x003004 + (chid * 8), 0x00000001, 0x00000000);
         nvc0_fifo_playlist_update(priv);
+        mask = nv_rd32(priv, 0x0025a4);
+        for (engine = 0; mask && engine < 16; engine++) {
+                if (!(mask & (1 << engine)))
+                        continue;
+                nv_mask(priv, 0x0025a8 + (engine * 4), 0x00000000, 0x00000000);
+                mask &= ~(1 << engine);
+        }
         nv_wr32(priv, 0x003000 + (chid * 8), 0x00000000);
 
         return nouveau_fifo_channel_fini(&chan->base, suspend);
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
index 9151919fb831..56192a7242ae 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
@@ -94,11 +94,13 @@ nve0_fifo_playlist_update(struct nve0_fifo_priv *priv, u32 engine)
         u32 match = (engine << 16) | 0x00000001;
         int i, p;
 
+        mutex_lock(&nv_subdev(priv)->mutex);
         cur = engn->playlist[engn->cur_playlist];
         if (unlikely(cur == NULL)) {
                 int ret = nouveau_gpuobj_new(nv_object(priv), NULL,
                                              0x8000, 0x1000, 0, &cur);
                 if (ret) {
+                        mutex_unlock(&nv_subdev(priv)->mutex);
                         nv_error(priv, "playlist alloc failed\n");
                         return;
                 }
@@ -122,6 +124,7 @@ nve0_fifo_playlist_update(struct nve0_fifo_priv *priv, u32 engine)
         nv_wr32(priv, 0x002274, (engine << 20) | (p >> 3));
         if (!nv_wait(priv, 0x002284 + (engine * 4), 0x00100000, 0x00000000))
                 nv_error(priv, "playlist %d update timeout\n", engine);
+        mutex_unlock(&nv_subdev(priv)->mutex);
 }
 
 static int
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
index c300b5e7b670..c434d398d16f 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
@@ -1940,8 +1940,8 @@ init_zm_mask_add(struct nvbios_init *init)
         trace("ZM_MASK_ADD\tR[0x%06x] &= 0x%08x += 0x%08x\n", addr, mask, add);
         init->offset += 13;
 
-        data  =  init_rd32(init, addr) & mask;
-        data |= ((data + add) & ~mask);
+        data =  init_rd32(init, addr);
+        data = (data & mask) | ((data + add) & ~mask);
         init_wr32(init, addr, data);
 }
 
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c
index e4940fb166e8..fb794e997fbc 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c
@@ -29,7 +29,6 @@
 struct nvc0_ltcg_priv {
         struct nouveau_ltcg base;
         u32 part_nr;
-        u32 part_mask;
         u32 subp_nr;
         struct nouveau_mm tags;
         u32 num_tags;
@@ -105,8 +104,6 @@ nvc0_ltcg_tags_clear(struct nouveau_ltcg *ltcg, u32 first, u32 count)
 
         /* wait until it's finished with clearing */
         for (p = 0; p < priv->part_nr; ++p) {
-                if (!(priv->part_mask & (1 << p)))
-                        continue;
                 for (i = 0; i < priv->subp_nr; ++i)
                         nv_wait(priv, 0x1410c8 + p * 0x2000 + i * 0x400, ~0, 0);
         }
@@ -121,6 +118,8 @@ nvc0_ltcg_init_tag_ram(struct nouveau_fb *pfb, struct nvc0_ltcg_priv *priv)
         int ret;
 
         nv_wr32(priv, 0x17e8d8, priv->part_nr);
+        if (nv_device(pfb)->card_type >= NV_E0)
+                nv_wr32(priv, 0x17e000, priv->part_nr);
 
         /* tags for 1/4 of VRAM should be enough (8192/4 per GiB of VRAM) */
         priv->num_tags = (pfb->ram.size >> 17) / 4;
@@ -167,16 +166,20 @@ nvc0_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 {
         struct nvc0_ltcg_priv *priv;
         struct nouveau_fb *pfb = nouveau_fb(parent);
-        int ret;
+        u32 parts, mask;
+        int ret, i;
 
         ret = nouveau_ltcg_create(parent, engine, oclass, &priv);
         *pobject = nv_object(priv);
         if (ret)
                 return ret;
 
-        priv->part_nr = nv_rd32(priv, 0x022438);
-        priv->part_mask = nv_rd32(priv, 0x022554);
-
+        parts = nv_rd32(priv, 0x022438);
+        mask = nv_rd32(priv, 0x022554);
+        for (i = 0; i < parts; i++) {
+                if (!(mask & (1 << i)))
+                        priv->part_nr++;
+        }
         priv->subp_nr = nv_rd32(priv, 0x17e8dc) >> 28;
 
         nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 46c152ff0a80..383f4e6ea9d1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -453,18 +453,32 @@ nouveau_do_suspend(struct drm_device *dev)
         NV_INFO(drm, "evicting buffers...\n");
         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 
+        NV_INFO(drm, "waiting for kernel channels to go idle...\n");
+        if (drm->cechan) {
+                ret = nouveau_channel_idle(drm->cechan);
+                if (ret)
+                        return ret;
+        }
+
+        if (drm->channel) {
+                ret = nouveau_channel_idle(drm->channel);
+                if (ret)
+                        return ret;
+        }
+
+        NV_INFO(drm, "suspending client object trees...\n");
         if (drm->fence && nouveau_fence(drm)->suspend) {
                 if (!nouveau_fence(drm)->suspend(drm))
                         return -ENOMEM;
         }
 
-        NV_INFO(drm, "suspending client object trees...\n");
         list_for_each_entry(cli, &drm->clients, head) {
                 ret = nouveau_client_fini(&cli->base, true);
                 if (ret)
                         goto fail_client;
         }
 
+        NV_INFO(drm, "suspending kernel object tree...\n");
         ret = nouveau_client_fini(&drm->client.base, true);
         if (ret)
                 goto fail_client;
@@ -514,17 +528,18 @@ nouveau_do_resume(struct drm_device *dev)
 
         nouveau_agp_reset(drm);
 
-        NV_INFO(drm, "resuming client object trees...\n");
+        NV_INFO(drm, "resuming kernel object tree...\n");
         nouveau_client_init(&drm->client.base);
         nouveau_agp_init(drm);
 
+        NV_INFO(drm, "resuming client object trees...\n");
+        if (drm->fence && nouveau_fence(drm)->resume)
+                nouveau_fence(drm)->resume(drm);
+
         list_for_each_entry(cli, &drm->clients, head) {
                 nouveau_client_init(&cli->base);
         }
 
-        if (drm->fence && nouveau_fence(drm)->resume)
-                nouveau_fence(drm)->resume(drm);
-
         nouveau_run_vbios_init(dev);
         nouveau_pm_resume(dev);
 
diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
index 08b0823c93d5..f86771481317 100644
--- a/drivers/gpu/drm/qxl/qxl_cmd.c
+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
@@ -277,7 +277,7 @@ out_unref:
         return 0;
 }
 
-static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port)
+static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port, bool intr)
 {
         int irq_num;
         long addr = qdev->io_base + port;
@@ -285,20 +285,29 @@ static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port)
 
         mutex_lock(&qdev->async_io_mutex);
         irq_num = atomic_read(&qdev->irq_received_io_cmd);
-
-
         if (qdev->last_sent_io_cmd > irq_num) {
-                ret = wait_event_interruptible(qdev->io_cmd_event,
-                                               atomic_read(&qdev->irq_received_io_cmd) > irq_num);
-                if (ret)
+                if (intr)
+                        ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
+                                                               atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+                else
+                        ret = wait_event_timeout(qdev->io_cmd_event,
+                                                 atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+                /* 0 is timeout, just bail the "hw" has gone away */
+                if (ret <= 0)
                         goto out;
                 irq_num = atomic_read(&qdev->irq_received_io_cmd);
         }
         outb(val, addr);
         qdev->last_sent_io_cmd = irq_num + 1;
-        ret = wait_event_interruptible(qdev->io_cmd_event,
-                                       atomic_read(&qdev->irq_received_io_cmd) > irq_num);
+        if (intr)
+                ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
+                                                       atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+        else
+                ret = wait_event_timeout(qdev->io_cmd_event,
+                                         atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
 out:
+        if (ret > 0)
+                ret = 0;
         mutex_unlock(&qdev->async_io_mutex);
         return ret;
 }
@@ -308,7 +317,7 @@ static void wait_for_io_cmd(struct qxl_device *qdev, uint8_t val, long port)
         int ret;
 
 restart:
-        ret = wait_for_io_cmd_user(qdev, val, port);
+        ret = wait_for_io_cmd_user(qdev, val, port, false);
         if (ret == -ERESTARTSYS)
                 goto restart;
 }
@@ -340,7 +349,7 @@ int qxl_io_update_area(struct qxl_device *qdev, struct qxl_bo *surf,
         mutex_lock(&qdev->update_area_mutex);
         qdev->ram_header->update_area = *area;
         qdev->ram_header->update_surface = surface_id;
-        ret = wait_for_io_cmd_user(qdev, 0, QXL_IO_UPDATE_AREA_ASYNC);
+        ret = wait_for_io_cmd_user(qdev, 0, QXL_IO_UPDATE_AREA_ASYNC, true);
         mutex_unlock(&qdev->update_area_mutex);
         return ret;
 }
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index fcfd4436ceed..823d29e926ec 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -428,10 +428,10 @@ static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
         int inc = 1;
 
         qobj = gem_to_qxl_bo(qxl_fb->obj);
-        if (qxl_fb != qdev->active_user_framebuffer) {
-                DRM_INFO("%s: qxl_fb 0x%p != qdev->active_user_framebuffer 0x%p\n",
-                        __func__, qxl_fb, qdev->active_user_framebuffer);
-        }
+        /* if we aren't primary surface ignore this */
+        if (!qobj->is_primary)
+                return 0;
+
         if (!num_clips) {
                 num_clips = 1;
                 clips = &norect;
@@ -604,7 +604,6 @@ static int qxl_crtc_mode_set(struct drm_crtc *crtc,
                                                mode->hdisplay,
                                                mode->vdisplay);
         }
-        qdev->mode_set = true;
         return 0;
 }
 
@@ -893,7 +892,6 @@ qxl_user_framebuffer_create(struct drm_device *dev,
 {
         struct drm_gem_object *obj;
         struct qxl_framebuffer *qxl_fb;
-        struct qxl_device *qdev = dev->dev_private;
         int ret;
 
         obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
@@ -909,13 +907,6 @@ qxl_user_framebuffer_create(struct drm_device *dev,
                 return NULL;
         }
 
-        if (qdev->active_user_framebuffer) {
-                DRM_INFO("%s: active_user_framebuffer %p -> %p\n",
-                         __func__,
-                         qdev->active_user_framebuffer, qxl_fb);
-        }
-        qdev->active_user_framebuffer = qxl_fb;
-
         return &qxl_fb->base;
 }
 
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 52b582c211da..43d06ab28a21 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -255,12 +255,6 @@ struct qxl_device {
         struct qxl_gem          gem;
         struct qxl_mode_info mode_info;
 
-        /*
-         * last created framebuffer with fb_create
-         * only used by debugfs dumbppm
-         */
-        struct qxl_framebuffer *active_user_framebuffer;
-
         struct fb_info                  *fbdev_info;
         struct qxl_framebuffer  *fbdev_qfb;
         void *ram_physical;
@@ -270,7 +264,6 @@ struct qxl_device {
         struct qxl_ring *cursor_ring;
 
         struct qxl_ram_header *ram_header;
-        bool mode_set;
 
         bool primary_created;
 
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 04b64f9cbfdb..6db7370373ea 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -294,6 +294,7 @@ static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
                 goto out;
 
         if (!qobj->pin_count) {
+                qxl_ttm_placement_from_domain(qobj, qobj->type);
                 ret = ttm_bo_validate(&qobj->tbo, &qobj->placement,
                                       true, false);
                 if (unlikely(ret))
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 6d6fdb3ba0d0..d5df8fd10217 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1811,12 +1811,9 @@ static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
 
 static void atombios_crtc_prepare(struct drm_crtc *crtc)
 {
-        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
         struct drm_device *dev = crtc->dev;
         struct radeon_device *rdev = dev->dev_private;
 
-        radeon_crtc->in_mode_set = true;
-
         /* disable crtc pair power gating before programming */
         if (ASIC_IS_DCE6(rdev))
                 atombios_powergate_crtc(crtc, ATOM_DISABLE);
@@ -1827,11 +1824,8 @@ static void atombios_crtc_prepare(struct drm_crtc *crtc)
 
 static void atombios_crtc_commit(struct drm_crtc *crtc)
 {
-        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
-
         atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
         atombios_lock_crtc(crtc, ATOM_DISABLE);
-        radeon_crtc->in_mode_set = false;
 }
 
 static void atombios_crtc_disable(struct drm_crtc *crtc)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 105bafb6c29d..8f9e2d31b255 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2343,11 +2343,13 @@ void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *sav
         u32 crtc_enabled, tmp, frame_count, blackout;
         int i, j;
 
-        save->vga_render_control = RREG32(VGA_RENDER_CONTROL);
-        save->vga_hdp_control = RREG32(VGA_HDP_CONTROL);
+        if (!ASIC_IS_NODCE(rdev)) {
+                save->vga_render_control = RREG32(VGA_RENDER_CONTROL);
+                save->vga_hdp_control = RREG32(VGA_HDP_CONTROL);
 
-        /* disable VGA render */
-        WREG32(VGA_RENDER_CONTROL, 0);
+                /* disable VGA render */
+                WREG32(VGA_RENDER_CONTROL, 0);
+        }
         /* blank the display controllers */
         for (i = 0; i < rdev->num_crtc; i++) {
                 crtc_enabled = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]) & EVERGREEN_CRTC_MASTER_EN;
@@ -2438,8 +2440,11 @@ void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *s
                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i],
                        (u32)rdev->mc.vram_start);
         }
-        WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start));
-        WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
+
+        if (!ASIC_IS_NODCE(rdev)) {
+                WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start));
+                WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
+        }
 
         /* unlock regs and wait for update */
         for (i = 0; i < rdev->num_crtc; i++) {
@@ -2499,10 +2504,12 @@ void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *s
                         }
                 }
         }
-        /* Unlock vga access */
-        WREG32(VGA_HDP_CONTROL, save->vga_hdp_control);
-        mdelay(1);
-        WREG32(VGA_RENDER_CONTROL, save->vga_render_control);
+        if (!ASIC_IS_NODCE(rdev)) {
+                /* Unlock vga access */
+                WREG32(VGA_HDP_CONTROL, save->vga_hdp_control);
+                mdelay(1);
+                WREG32(VGA_RENDER_CONTROL, save->vga_render_control);
+        }
 }
 
 void evergreen_mc_program(struct radeon_device *rdev)
@@ -3405,8 +3412,8 @@ int evergreen_mc_init(struct radeon_device *rdev)
                 rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
         } else {
                 /* size in MB on evergreen/cayman/tn */
-                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;
         r700_vram_gtt_location(rdev, &rdev->mc);
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index b4ab8ceb1654..ed7c8a768092 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -154,19 +154,18 @@ static void evergreen_audio_set_dto(struct drm_encoder *encoder, u32 clock)
         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
         struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
-        u32 base_rate = 48000;
+        u32 base_rate = 24000;
 
         if (!dig || !dig->afmt)
                 return;
 
-        /* XXX: properly calculate this */
         /* XXX two dtos; generally use dto0 for hdmi */
         /* Express [24MHz / target pixel clock] as an exact rational
          * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
          * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
          */
-        WREG32(DCCG_AUDIO_DTO0_PHASE, (base_rate*50) & 0xffffff);
-        WREG32(DCCG_AUDIO_DTO0_MODULE, (clock*100) & 0xffffff);
+        WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100);
+        WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);
         WREG32(DCCG_AUDIO_DTO_SOURCE, DCCG_AUDIO_DTO0_SOURCE_SEL(radeon_crtc->crtc_id));
 }
 
diff --git a/drivers/gpu/drm/radeon/r300_cmdbuf.c b/drivers/gpu/drm/radeon/r300_cmdbuf.c
index 865e2c9980db..60170ea5e3a2 100644
--- a/drivers/gpu/drm/radeon/r300_cmdbuf.c
+++ b/drivers/gpu/drm/radeon/r300_cmdbuf.c
@@ -75,7 +75,7 @@ static int r300_emit_cliprects(drm_radeon_private_t *dev_priv,
                 OUT_RING(CP_PACKET0(R300_RE_CLIPRECT_TL_0, nr * 2 - 1));
 
                 for (i = 0; i < nr; ++i) {
-                        if (DRM_COPY_FROM_USER_UNCHECKED
+                        if (DRM_COPY_FROM_USER
                             (&box, &cmdbuf->boxes[n + i], sizeof(box))) {
                                 DRM_ERROR("copy cliprect faulted\n");
                                 return -EFAULT;
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index 47f180a79352..456750a0daa5 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -232,7 +232,7 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
         struct radeon_device *rdev = dev->dev_private;
         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-        u32 base_rate = 48000;
+        u32 base_rate = 24000;
 
         if (!dig || !dig->afmt)
                 return;
@@ -240,7 +240,6 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
         /* there are two DTOs selected by DCCG_AUDIO_DTO_SELECT.
          * doesn't matter which one you use.  Just use the first one.
          */
-        /* XXX: properly calculate this */
         /* XXX two dtos; generally use dto0 for hdmi */
         /* Express [24MHz / target pixel clock] as an exact rational
          * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
@@ -250,13 +249,13 @@ void r600_audio_set_dto(struct drm_encoder *encoder, u32 clock)
                 /* according to the reg specs, this should DCE3.2 only, but in
                  * practice it seems to cover DCE3.0 as well.
                  */
-                WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 50);
+                WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100);
                 WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);
                 WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
         } else {
                 /* according to the reg specs, this should be DCE2.0 and DCE3.0 */
-                WREG32(AUDIO_DTO, AUDIO_DTO_PHASE(base_rate * 50) |
-                       AUDIO_DTO_MODULE(clock * 100));
+                WREG32(AUDIO_DTO, AUDIO_DTO_PHASE(base_rate / 10) |
+                       AUDIO_DTO_MODULE(clock / 10));
         }
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 1442ce765d48..142ce6cc69f5 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1694,6 +1694,7 @@ struct radeon_device {
         int num_crtc; /* number of crtcs */
         struct mutex dc_hw_i2c_mutex; /* display controller hw i2c mutex */
         bool audio_enabled;
+        bool has_uvd;
         struct r600_audio audio_status; /* audio stuff */
         struct notifier_block acpi_nb;
         /* only one userspace can use Hyperz features or CMASK at a time */
@@ -1838,6 +1839,7 @@ void r100_pll_errata_after_index(struct radeon_device *rdev);
 #define ASIC_IS_DCE61(rdev) ((rdev->family >= CHIP_ARUBA) && \
                              (rdev->flags & RADEON_IS_IGP))
 #define ASIC_IS_DCE64(rdev) ((rdev->family == CHIP_OLAND))
+#define ASIC_IS_NODCE(rdev) ((rdev->family == CHIP_HAINAN))
 
 /*
  * BIOS helpers.
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 6417132c50cf..06b8c19ab19e 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1935,6 +1935,8 @@ int radeon_asic_init(struct radeon_device *rdev)
         else
                 rdev->num_crtc = 2;
 
+        rdev->has_uvd = false;
+
         switch (rdev->family) {
         case CHIP_R100:
         case CHIP_RV100:
@@ -1999,16 +2001,22 @@ int radeon_asic_init(struct radeon_device *rdev)
         case CHIP_RV635:
         case CHIP_RV670:
                 rdev->asic = &r600_asic;
+                if (rdev->family == CHIP_R600)
+                        rdev->has_uvd = false;
+                else
+                        rdev->has_uvd = true;
                 break;
         case CHIP_RS780:
         case CHIP_RS880:
                 rdev->asic = &rs780_asic;
+                rdev->has_uvd = true;
                 break;
         case CHIP_RV770:
         case CHIP_RV730:
         case CHIP_RV710:
         case CHIP_RV740:
                 rdev->asic = &rv770_asic;
+                rdev->has_uvd = true;
                 break;
         case CHIP_CEDAR:
         case CHIP_REDWOOD:
@@ -2021,11 +2029,13 @@ int radeon_asic_init(struct radeon_device *rdev)
                 else
                         rdev->num_crtc = 6;
                 rdev->asic = &evergreen_asic;
+                rdev->has_uvd = true;
                 break;
         case CHIP_PALM:
         case CHIP_SUMO:
         case CHIP_SUMO2:
                 rdev->asic = &sumo_asic;
+                rdev->has_uvd = true;
                 break;
         case CHIP_BARTS:
         case CHIP_TURKS:
@@ -2036,27 +2046,37 @@ int radeon_asic_init(struct radeon_device *rdev)
                 else
                         rdev->num_crtc = 6;
                 rdev->asic = &btc_asic;
+                rdev->has_uvd = true;
                 break;
         case CHIP_CAYMAN:
                 rdev->asic = &cayman_asic;
                 /* set num crtcs */
                 rdev->num_crtc = 6;
+                rdev->has_uvd = true;
                 break;
         case CHIP_ARUBA:
                 rdev->asic = &trinity_asic;
                 /* set num crtcs */
                 rdev->num_crtc = 4;
+                rdev->has_uvd = true;
                 break;
         case CHIP_TAHITI:
         case CHIP_PITCAIRN:
         case CHIP_VERDE:
         case CHIP_OLAND:
+        case CHIP_HAINAN:
                 rdev->asic = &si_asic;
                 /* set num crtcs */
-                if (rdev->family == CHIP_OLAND)
+                if (rdev->family == CHIP_HAINAN)
+                        rdev->num_crtc = 0;
+                else if (rdev->family == CHIP_OLAND)
                         rdev->num_crtc = 2;
                 else
                         rdev->num_crtc = 6;
+                if (rdev->family == CHIP_HAINAN)
+                        rdev->has_uvd = false;
+                else
+                        rdev->has_uvd = true;
                 break;
         default:
                 /* FIXME: not supported yet */
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
index fa3c56fba294..061b227dae0c 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -244,24 +244,28 @@ static bool ni_read_disabled_bios(struct radeon_device *rdev)
 
         /* enable the rom */
         WREG32(R600_BUS_CNTL, (bus_cntl & ~R600_BIOS_ROM_DIS));
-        /* Disable VGA mode */
-        WREG32(AVIVO_D1VGA_CONTROL,
-               (d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
-                AVIVO_DVGA_CONTROL_TIMING_SELECT)));
-        WREG32(AVIVO_D2VGA_CONTROL,
-               (d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
-                AVIVO_DVGA_CONTROL_TIMING_SELECT)));
-        WREG32(AVIVO_VGA_RENDER_CONTROL,
-               (vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK));
+        if (!ASIC_IS_NODCE(rdev)) {
+                /* Disable VGA mode */
+                WREG32(AVIVO_D1VGA_CONTROL,
+                       (d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
+                                          AVIVO_DVGA_CONTROL_TIMING_SELECT)));
+                WREG32(AVIVO_D2VGA_CONTROL,
+                       (d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE |
+                                          AVIVO_DVGA_CONTROL_TIMING_SELECT)));
+                WREG32(AVIVO_VGA_RENDER_CONTROL,
+                       (vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK));
+        }
         WREG32(R600_ROM_CNTL, rom_cntl | R600_SCK_OVERWRITE);
 
         r = radeon_read_bios(rdev);
 
         /* restore regs */
         WREG32(R600_BUS_CNTL, bus_cntl);
-        WREG32(AVIVO_D1VGA_CONTROL, d1vga_control);
-        WREG32(AVIVO_D2VGA_CONTROL, d2vga_control);
-        WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control);
+        if (!ASIC_IS_NODCE(rdev)) {
+                WREG32(AVIVO_D1VGA_CONTROL, d1vga_control);
+                WREG32(AVIVO_D2VGA_CONTROL, d2vga_control);
+                WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control);
+        }
         WREG32(R600_ROM_CNTL, rom_cntl);
         return r;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index a8f608903989..c2c59fb1ea01 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -94,6 +94,7 @@ static const char radeon_family_name[][16] = {
         "PITCAIRN",
         "VERDE",
         "OLAND",
+        "HAINAN",
         "LAST",
 };
 
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index d33f484ace48..094e7e5ea39e 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -147,7 +147,7 @@ static inline void radeon_unregister_atpx_handler(void) {}
 #endif
 
 int radeon_no_wb;
-int radeon_modeset = 1;
+int radeon_modeset = -1;
 int radeon_dynclks = -1;
 int radeon_r4xx_atom = 0;
 int radeon_agpmode = 0;
@@ -456,6 +456,16 @@ static struct pci_driver radeon_kms_pci_driver = {
 
 static int __init radeon_init(void)
 {
+#ifdef CONFIG_VGA_CONSOLE
+        if (vgacon_text_force() && radeon_modeset == -1) {
+                DRM_INFO("VGACON disable radeon kernel modesetting.\n");
+                radeon_modeset = 0;
+        }
+#endif
+        /* set to modesetting by default if not nomodeset */
+        if (radeon_modeset == -1)
+                radeon_modeset = 1;
+
         if (radeon_modeset == 1) {
                 DRM_INFO("radeon kernel modesetting enabled.\n");
                 driver = &kms_driver;
diff --git a/drivers/gpu/drm/radeon/radeon_family.h b/drivers/gpu/drm/radeon/radeon_family.h
index 2d91123f2759..36e9803b077d 100644
--- a/drivers/gpu/drm/radeon/radeon_family.h
+++ b/drivers/gpu/drm/radeon/radeon_family.h
@@ -92,6 +92,7 @@ enum radeon_family {
         CHIP_PITCAIRN,
         CHIP_VERDE,
         CHIP_OLAND,
+        CHIP_HAINAN,
         CHIP_LAST,
 };
 
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 6857cb4efb76..7cb178a34a0f 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -1031,11 +1031,9 @@ static int radeon_crtc_mode_set(struct drm_crtc *crtc,
 
 static void radeon_crtc_prepare(struct drm_crtc *crtc)
 {
-        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
         struct drm_device *dev = crtc->dev;
         struct drm_crtc *crtci;
 
-        radeon_crtc->in_mode_set = true;
         /*
         * The hardware wedges sometimes if you reconfigure one CRTC
         * whilst another is running (see fdo bug #24611).
@@ -1046,7 +1044,6 @@ static void radeon_crtc_prepare(struct drm_crtc *crtc)
 
 static void radeon_crtc_commit(struct drm_crtc *crtc)
 {
-        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
         struct drm_device *dev = crtc->dev;
         struct drm_crtc *crtci;
 
@@ -1057,7 +1054,6 @@ static void radeon_crtc_commit(struct drm_crtc *crtc)
                 if (crtci->enabled)
                         radeon_crtc_dpms(crtci, DRM_MODE_DPMS_ON);
         }
-        radeon_crtc->in_mode_set = false;
 }
 
 static const struct drm_crtc_helper_funcs legacy_helper_funcs = {
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 44e579e75fd0..69ad4fe224c1 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -302,7 +302,6 @@ struct radeon_crtc {
         u16 lut_r[256], lut_g[256], lut_b[256];
         bool enabled;
         bool can_tile;
-        bool in_mode_set;
         uint32_t crtc_offset;
         struct drm_gem_object *cursor_bo;
         uint64_t cursor_addr;
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 93f760e27a92..6c0ce8915fac 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -726,7 +726,7 @@ int radeon_ttm_init(struct radeon_device *rdev)
                 return r;
         }
         DRM_INFO("radeon: %uM of VRAM memory ready\n",
-                 (unsigned)rdev->mc.real_vram_size / (1024 * 1024));
+                 (unsigned) (rdev->mc.real_vram_size / (1024 * 1024)));
         r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT,
                                 rdev->mc.gtt_size >> PAGE_SHIFT);
         if (r) {
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index f0b6c2f87c4d..5ffade69af25 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -60,6 +60,11 @@ MODULE_FIRMWARE("radeon/OLAND_me.bin");
 MODULE_FIRMWARE("radeon/OLAND_ce.bin");
 MODULE_FIRMWARE("radeon/OLAND_mc.bin");
 MODULE_FIRMWARE("radeon/OLAND_rlc.bin");
+MODULE_FIRMWARE("radeon/HAINAN_pfp.bin");
+MODULE_FIRMWARE("radeon/HAINAN_me.bin");
+MODULE_FIRMWARE("radeon/HAINAN_ce.bin");
+MODULE_FIRMWARE("radeon/HAINAN_mc.bin");
+MODULE_FIRMWARE("radeon/HAINAN_rlc.bin");
 
 extern int r600_ih_ring_alloc(struct radeon_device *rdev);
 extern void r600_ih_ring_fini(struct radeon_device *rdev);
@@ -265,6 +270,40 @@ static const u32 oland_golden_registers[] =
         0x15c0, 0x000c0fc0, 0x000c0400
 };
 
+static const u32 hainan_golden_registers[] =
+{
+        0x9a10, 0x00010000, 0x00018208,
+        0x9830, 0xffffffff, 0x00000000,
+        0x9834, 0xf00fffff, 0x00000400,
+        0x9838, 0x0002021c, 0x00020200,
+        0xd0c0, 0xff000fff, 0x00000100,
+        0xd030, 0x000300c0, 0x00800040,
+        0xd8c0, 0xff000fff, 0x00000100,
+        0xd830, 0x000300c0, 0x00800040,
+        0x2ae4, 0x00073ffe, 0x000022a2,
+        0x240c, 0x000007ff, 0x00000000,
+        0x8a14, 0xf000001f, 0x00000007,
+        0x8b24, 0xffffffff, 0x00ffffff,
+        0x8b10, 0x0000ff0f, 0x00000000,
+        0x28a4c, 0x07ffffff, 0x4e000000,
+        0x28350, 0x3f3f3fff, 0x00000000,
+        0x30, 0x000000ff, 0x0040,
+        0x34, 0x00000040, 0x00004040,
+        0x9100, 0x03e00000, 0x03600000,
+        0x9060, 0x0000007f, 0x00000020,
+        0x9508, 0x00010000, 0x00010000,
+        0xac14, 0x000003ff, 0x000000f1,
+        0xac10, 0xffffffff, 0x00000000,
+        0xac0c, 0xffffffff, 0x00003210,
+        0x88d4, 0x0000001f, 0x00000010,
+        0x15c0, 0x000c0fc0, 0x000c0400
+};
+
+static const u32 hainan_golden_registers2[] =
+{
+        0x98f8, 0xffffffff, 0x02010001
+};
+
 static const u32 tahiti_mgcg_cgcg_init[] =
 {
         0xc400, 0xffffffff, 0xfffffffc,
@@ -673,6 +712,83 @@ static const u32 oland_mgcg_cgcg_init[] =
         0xd8c0, 0xfffffff0, 0x00000100
 };
 
+static const u32 hainan_mgcg_cgcg_init[] =
+{
+        0xc400, 0xffffffff, 0xfffffffc,
+        0x802c, 0xffffffff, 0xe0000000,
+        0x9a60, 0xffffffff, 0x00000100,
+        0x92a4, 0xffffffff, 0x00000100,
+        0xc164, 0xffffffff, 0x00000100,
+        0x9774, 0xffffffff, 0x00000100,
+        0x8984, 0xffffffff, 0x06000100,
+        0x8a18, 0xffffffff, 0x00000100,
+        0x92a0, 0xffffffff, 0x00000100,
+        0xc380, 0xffffffff, 0x00000100,
+        0x8b28, 0xffffffff, 0x00000100,
+        0x9144, 0xffffffff, 0x00000100,
+        0x8d88, 0xffffffff, 0x00000100,
+        0x8d8c, 0xffffffff, 0x00000100,
+        0x9030, 0xffffffff, 0x00000100,
+        0x9034, 0xffffffff, 0x00000100,
+        0x9038, 0xffffffff, 0x00000100,
+        0x903c, 0xffffffff, 0x00000100,
+        0xad80, 0xffffffff, 0x00000100,
+        0xac54, 0xffffffff, 0x00000100,
+        0x897c, 0xffffffff, 0x06000100,
+        0x9868, 0xffffffff, 0x00000100,
+        0x9510, 0xffffffff, 0x00000100,
+        0xaf04, 0xffffffff, 0x00000100,
+        0xae04, 0xffffffff, 0x00000100,
+        0x949c, 0xffffffff, 0x00000100,
+        0x802c, 0xffffffff, 0xe0000000,
+        0x9160, 0xffffffff, 0x00010000,
+        0x9164, 0xffffffff, 0x00030002,
+        0x9168, 0xffffffff, 0x00040007,
+        0x916c, 0xffffffff, 0x00060005,
+        0x9170, 0xffffffff, 0x00090008,
+        0x9174, 0xffffffff, 0x00020001,
+        0x9178, 0xffffffff, 0x00040003,
+        0x917c, 0xffffffff, 0x00000007,
+        0x9180, 0xffffffff, 0x00060005,
+        0x9184, 0xffffffff, 0x00090008,
+        0x9188, 0xffffffff, 0x00030002,
+        0x918c, 0xffffffff, 0x00050004,
+        0x9190, 0xffffffff, 0x00000008,
+        0x9194, 0xffffffff, 0x00070006,
+        0x9198, 0xffffffff, 0x000a0009,
+        0x919c, 0xffffffff, 0x00040003,
+        0x91a0, 0xffffffff, 0x00060005,
+        0x91a4, 0xffffffff, 0x00000009,
+        0x91a8, 0xffffffff, 0x00080007,
+        0x91ac, 0xffffffff, 0x000b000a,
+        0x91b0, 0xffffffff, 0x00050004,
+        0x91b4, 0xffffffff, 0x00070006,
+        0x91b8, 0xffffffff, 0x0008000b,
+        0x91bc, 0xffffffff, 0x000a0009,
+        0x91c0, 0xffffffff, 0x000d000c,
+        0x91c4, 0xffffffff, 0x00060005,
+        0x91c8, 0xffffffff, 0x00080007,
+        0x91cc, 0xffffffff, 0x0000000b,
+        0x91d0, 0xffffffff, 0x000a0009,
+        0x91d4, 0xffffffff, 0x000d000c,
+        0x9150, 0xffffffff, 0x96940200,
+        0x8708, 0xffffffff, 0x00900100,
+        0xc478, 0xffffffff, 0x00000080,
+        0xc404, 0xffffffff, 0x0020003f,
+        0x30, 0xffffffff, 0x0000001c,
+        0x34, 0x000f0000, 0x000f0000,
+        0x160c, 0xffffffff, 0x00000100,
+        0x1024, 0xffffffff, 0x00000100,
+        0x20a8, 0xffffffff, 0x00000104,
+        0x264c, 0x000c0000, 0x000c0000,
+        0x2648, 0x000c0000, 0x000c0000,
+        0x2f50, 0x00000001, 0x00000001,
+        0x30cc, 0xc0000fff, 0x00000104,
+        0xc1e4, 0x00000001, 0x00000001,
+        0xd0c0, 0xfffffff0, 0x00000100,
+        0xd8c0, 0xfffffff0, 0x00000100
+};
+
 static u32 verde_pg_init[] =
 {
         0x353c, 0xffffffff, 0x40000,
@@ -853,6 +969,17 @@ static void si_init_golden_registers(struct radeon_device *rdev)
                                                  oland_mgcg_cgcg_init,
                                                  (const u32)ARRAY_SIZE(oland_mgcg_cgcg_init));
                 break;
+        case CHIP_HAINAN:
+                radeon_program_register_sequence(rdev,
+                                                 hainan_golden_registers,
+                                                 (const u32)ARRAY_SIZE(hainan_golden_registers));
+                radeon_program_register_sequence(rdev,
+                                                 hainan_golden_registers2,
+                                                 (const u32)ARRAY_SIZE(hainan_golden_registers2));
+                radeon_program_register_sequence(rdev,
+                                                 hainan_mgcg_cgcg_init,
+                                                 (const u32)ARRAY_SIZE(hainan_mgcg_cgcg_init));
+                break;
         default:
                 break;
         }
@@ -1062,6 +1189,45 @@ static const u32 oland_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
         {0x0000009f, 0x00a17730}
 };
 
+static const u32 hainan_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
+        {0x0000006f, 0x03044000},
+        {0x00000070, 0x0480c018},
+        {0x00000071, 0x00000040},
+        {0x00000072, 0x01000000},
+        {0x00000074, 0x000000ff},
+        {0x00000075, 0x00143400},
+        {0x00000076, 0x08ec0800},
+        {0x00000077, 0x040000cc},
+        {0x00000079, 0x00000000},
+        {0x0000007a, 0x21000409},
+        {0x0000007c, 0x00000000},
+        {0x0000007d, 0xe8000000},
+        {0x0000007e, 0x044408a8},
+        {0x0000007f, 0x00000003},
+        {0x00000080, 0x00000000},
+        {0x00000081, 0x01000000},
+        {0x00000082, 0x02000000},
+        {0x00000083, 0x00000000},
+        {0x00000084, 0xe3f3e4f4},
+        {0x00000085, 0x00052024},
+        {0x00000087, 0x00000000},
+        {0x00000088, 0x66036603},
+        {0x00000089, 0x01000000},
+        {0x0000008b, 0x1c0a0000},
+        {0x0000008c, 0xff010000},
+        {0x0000008e, 0xffffefff},
+        {0x0000008f, 0xfff3efff},
+        {0x00000090, 0xfff3efbf},
+        {0x00000094, 0x00101101},
+        {0x00000095, 0x00000fff},
+        {0x00000096, 0x00116fff},
+        {0x00000097, 0x60010000},
+        {0x00000098, 0x10010000},
+        {0x00000099, 0x00006000},
+        {0x0000009a, 0x00001000},
+        {0x0000009f, 0x00a07730}
+};
+
 /* ucode loading */
 static int si_mc_load_microcode(struct radeon_device *rdev)
 {
@@ -1095,6 +1261,11 @@ static int si_mc_load_microcode(struct radeon_device *rdev)
                 ucode_size = OLAND_MC_UCODE_SIZE;
                 regs_size = TAHITI_IO_MC_REGS_SIZE;
                 break;
+        case CHIP_HAINAN:
+                io_mc_regs = (u32 *)&hainan_io_mc_regs;
+                ucode_size = OLAND_MC_UCODE_SIZE;
+                regs_size = TAHITI_IO_MC_REGS_SIZE;
+                break;
         }
 
         running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK;
@@ -1198,6 +1369,15 @@ static int si_init_microcode(struct radeon_device *rdev)
                 rlc_req_size = SI_RLC_UCODE_SIZE * 4;
                 mc_req_size = OLAND_MC_UCODE_SIZE * 4;
                 break;
+        case CHIP_HAINAN:
+                chip_name = "HAINAN";
+                rlc_chip_name = "HAINAN";
+                pfp_req_size = SI_PFP_UCODE_SIZE * 4;
+                me_req_size = SI_PM4_UCODE_SIZE * 4;
+                ce_req_size = SI_CE_UCODE_SIZE * 4;
+                rlc_req_size = SI_RLC_UCODE_SIZE * 4;
+                mc_req_size = OLAND_MC_UCODE_SIZE * 4;
+                break;
         default: BUG();
         }
 
@@ -2003,7 +2183,8 @@ static void si_tiling_mode_table_init(struct radeon_device *rdev)
                         WREG32(GB_TILE_MODE0 + (reg_offset * 4), gb_tile_moden);
                 }
         } else if ((rdev->family == CHIP_VERDE) ||
-                   (rdev->family == CHIP_OLAND)) {
+                   (rdev->family == CHIP_OLAND) ||
+                   (rdev->family == CHIP_HAINAN)) {
                 for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++) {
                         switch (reg_offset) {
                         case 0:  /* non-AA compressed depth or any compressed stencil */
@@ -2466,6 +2647,23 @@ static void si_gpu_init(struct radeon_device *rdev)
                 rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
                 gb_addr_config = VERDE_GB_ADDR_CONFIG_GOLDEN;
                 break;
+        case CHIP_HAINAN:
+                rdev->config.si.max_shader_engines = 1;
+                rdev->config.si.max_tile_pipes = 4;
+                rdev->config.si.max_cu_per_sh = 5;
+                rdev->config.si.max_sh_per_se = 1;
+                rdev->config.si.max_backends_per_se = 1;
+                rdev->config.si.max_texture_channel_caches = 2;
+                rdev->config.si.max_gprs = 256;
+                rdev->config.si.max_gs_threads = 16;
+                rdev->config.si.max_hw_contexts = 8;
+
+                rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
+                rdev->config.si.sc_prim_fifo_size_backend = 0x40;
+                rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
+                rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
+                gb_addr_config = HAINAN_GB_ADDR_CONFIG_GOLDEN;
+                break;
         }
 
         /* Initialize HDP */
@@ -2559,9 +2757,11 @@ static void si_gpu_init(struct radeon_device *rdev)
         WREG32(HDP_ADDR_CONFIG, gb_addr_config);
         WREG32(DMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config);
         WREG32(DMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config);
-        WREG32(UVD_UDEC_ADDR_CONFIG, gb_addr_config);
-        WREG32(UVD_UDEC_DB_ADDR_CONFIG, gb_addr_config);
-        WREG32(UVD_UDEC_DBW_ADDR_CONFIG, gb_addr_config);
+        if (rdev->has_uvd) {
+                WREG32(UVD_UDEC_ADDR_CONFIG, gb_addr_config);
+                WREG32(UVD_UDEC_DB_ADDR_CONFIG, gb_addr_config);
+                WREG32(UVD_UDEC_DBW_ADDR_CONFIG, gb_addr_config);
+        }
 
         si_tiling_mode_table_init(rdev);
 
@@ -3304,8 +3504,9 @@ static void si_mc_program(struct radeon_device *rdev)
         if (radeon_mc_wait_for_idle(rdev)) {
                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
         }
-        /* Lockout access through VGA aperture*/
-        WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
+        if (!ASIC_IS_NODCE(rdev))
+                /* Lockout access through VGA aperture*/
+                WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
         /* Update configuration */
         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
                rdev->mc.vram_start >> 12);
@@ -3327,9 +3528,11 @@ static void si_mc_program(struct radeon_device *rdev)
                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
         }
         evergreen_mc_resume(rdev, &save);
-        /* we need to own VRAM, so turn off the VGA renderer here
-         * to stop it overwriting our objects */
-        rv515_vga_render_disable(rdev);
+        if (!ASIC_IS_NODCE(rdev)) {
+                /* we need to own VRAM, so turn off the VGA renderer here
+                 * to stop it overwriting our objects */
+                rv515_vga_render_disable(rdev);
+        }
 }
 
 static void si_vram_gtt_location(struct radeon_device *rdev,
@@ -3397,8 +3600,8 @@ static int si_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);
@@ -4251,8 +4454,10 @@ static void si_disable_interrupt_state(struct radeon_device *rdev)
         tmp = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
         WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, tmp);
         WREG32(GRBM_INT_CNTL, 0);
-        WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
-        WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
+        if (rdev->num_crtc >= 2) {
+                WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
+                WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
+        }
         if (rdev->num_crtc >= 4) {
                 WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
                 WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
@@ -4262,8 +4467,10 @@ static void si_disable_interrupt_state(struct radeon_device *rdev)
                 WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
         }
 
-        WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
-        WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
+        if (rdev->num_crtc >= 2) {
+                WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
+                WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
+        }
         if (rdev->num_crtc >= 4) {
                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
@@ -4273,21 +4480,22 @@ static void si_disable_interrupt_state(struct radeon_device *rdev)
                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
         }
 
-        WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
-
-        tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
-        WREG32(DC_HPD1_INT_CONTROL, tmp);
-        tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
-        WREG32(DC_HPD2_INT_CONTROL, tmp);
-        tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
-        WREG32(DC_HPD3_INT_CONTROL, tmp);
-        tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
-        WREG32(DC_HPD4_INT_CONTROL, tmp);
-        tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
-        WREG32(DC_HPD5_INT_CONTROL, tmp);
-        tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
-        WREG32(DC_HPD6_INT_CONTROL, tmp);
+        if (!ASIC_IS_NODCE(rdev)) {
+                WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
 
+                tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+                WREG32(DC_HPD1_INT_CONTROL, tmp);
+                tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+                WREG32(DC_HPD2_INT_CONTROL, tmp);
+                tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+                WREG32(DC_HPD3_INT_CONTROL, tmp);
+                tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+                WREG32(DC_HPD4_INT_CONTROL, tmp);
+                tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+                WREG32(DC_HPD5_INT_CONTROL, tmp);
+                tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
+                WREG32(DC_HPD6_INT_CONTROL, tmp);
+        }
 }
 
 static int si_irq_init(struct radeon_device *rdev)
@@ -4366,7 +4574,7 @@ int si_irq_set(struct radeon_device *rdev)
         u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
         u32 cp_int_cntl1 = 0, cp_int_cntl2 = 0;
         u32 crtc1 = 0, crtc2 = 0, crtc3 = 0, crtc4 = 0, crtc5 = 0, crtc6 = 0;
-        u32 hpd1, hpd2, hpd3, hpd4, hpd5, hpd6;
+        u32 hpd1 = 0, hpd2 = 0, hpd3 = 0, hpd4 = 0, hpd5 = 0, hpd6 = 0;
         u32 grbm_int_cntl = 0;
         u32 grph1 = 0, grph2 = 0, grph3 = 0, grph4 = 0, grph5 = 0, grph6 = 0;
         u32 dma_cntl, dma_cntl1;
@@ -4383,12 +4591,14 @@ int si_irq_set(struct radeon_device *rdev)
                 return 0;
         }
 
-        hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
-        hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
-        hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
-        hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
-        hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
-        hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
+        if (!ASIC_IS_NODCE(rdev)) {
+                hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
+                hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
+                hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
+                hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
+                hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
+                hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
+        }
 
         dma_cntl = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE;
         dma_cntl1 = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
@@ -4479,8 +4689,10 @@ int si_irq_set(struct radeon_device *rdev)
 
         WREG32(GRBM_INT_CNTL, grbm_int_cntl);
 
-        WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
-        WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, crtc2);
+        if (rdev->num_crtc >= 2) {
+                WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
+                WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, crtc2);
+        }
         if (rdev->num_crtc >= 4) {
                 WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, crtc3);
                 WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, crtc4);
@@ -4490,8 +4702,10 @@ int si_irq_set(struct radeon_device *rdev)
                 WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, crtc6);
         }
 
-        WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, grph1);
-        WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, grph2);
+        if (rdev->num_crtc >= 2) {
+                WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, grph1);
+                WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, grph2);
+        }
         if (rdev->num_crtc >= 4) {
                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, grph3);
                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, grph4);
@@ -4501,12 +4715,14 @@ int si_irq_set(struct radeon_device *rdev)
                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, grph6);
         }
 
-        WREG32(DC_HPD1_INT_CONTROL, hpd1);
-        WREG32(DC_HPD2_INT_CONTROL, hpd2);
-        WREG32(DC_HPD3_INT_CONTROL, hpd3);
-        WREG32(DC_HPD4_INT_CONTROL, hpd4);
-        WREG32(DC_HPD5_INT_CONTROL, hpd5);
-        WREG32(DC_HPD6_INT_CONTROL, hpd6);
+        if (!ASIC_IS_NODCE(rdev)) {
+                WREG32(DC_HPD1_INT_CONTROL, hpd1);
+                WREG32(DC_HPD2_INT_CONTROL, hpd2);
+                WREG32(DC_HPD3_INT_CONTROL, hpd3);
+                WREG32(DC_HPD4_INT_CONTROL, hpd4);
+                WREG32(DC_HPD5_INT_CONTROL, hpd5);
+                WREG32(DC_HPD6_INT_CONTROL, hpd6);
+        }
 
         return 0;
 }
@@ -4515,6 +4731,9 @@ static inline void si_irq_ack(struct radeon_device *rdev)
 {
         u32 tmp;
 
+        if (ASIC_IS_NODCE(rdev))
+                return;
+
         rdev->irq.stat_regs.evergreen.disp_int = RREG32(DISP_INTERRUPT_STATUS);
         rdev->irq.stat_regs.evergreen.disp_int_cont = RREG32(DISP_INTERRUPT_STATUS_CONTINUE);
         rdev->irq.stat_regs.evergreen.disp_int_cont2 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE2);
@@ -5118,15 +5337,17 @@ static int si_startup(struct radeon_device *rdev)
                 return r;
         }
 
-        r = rv770_uvd_resume(rdev);
-        if (!r) {
-                r = radeon_fence_driver_start_ring(rdev,
-                                                   R600_RING_TYPE_UVD_INDEX);
+        if (rdev->has_uvd) {
+                r = rv770_uvd_resume(rdev);
+                if (!r) {
+                        r = radeon_fence_driver_start_ring(rdev,
+                                                           R600_RING_TYPE_UVD_INDEX);
+                        if (r)
+                                dev_err(rdev->dev, "UVD fences init error (%d).\n", r);
+                }
                 if (r)
-                        dev_err(rdev->dev, "UVD fences init error (%d).\n", r);
+                        rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;
         }
-        if (r)
-                rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;
 
         /* Enable IRQ */
         r = si_irq_init(rdev);
@@ -5185,16 +5406,18 @@ static int si_startup(struct radeon_device *rdev)
         if (r)
                 return r;
 
-        ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
-        if (ring->ring_size) {
-                r = radeon_ring_init(rdev, ring, ring->ring_size,
-                                     R600_WB_UVD_RPTR_OFFSET,
-                                     UVD_RBC_RB_RPTR, UVD_RBC_RB_WPTR,
-                                     0, 0xfffff, RADEON_CP_PACKET2);
-                if (!r)
-                        r = r600_uvd_init(rdev);
-                if (r)
-                        DRM_ERROR("radeon: failed initializing UVD (%d).\n", r);
+        if (rdev->has_uvd) {
+                ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+                if (ring->ring_size) {
+                        r = radeon_ring_init(rdev, ring, ring->ring_size,
+                                             R600_WB_UVD_RPTR_OFFSET,
+                                             UVD_RBC_RB_RPTR, UVD_RBC_RB_WPTR,
+                                             0, 0xfffff, RADEON_CP_PACKET2);
+                        if (!r)
+                                r = r600_uvd_init(rdev);
+                        if (r)
+                                DRM_ERROR("radeon: failed initializing UVD (%d).\n", r);
+                }
         }
 
         r = radeon_ib_pool_init(rdev);
@@ -5243,8 +5466,10 @@ int si_suspend(struct radeon_device *rdev)
         radeon_vm_manager_fini(rdev);
         si_cp_enable(rdev, false);
         cayman_dma_stop(rdev);
-        r600_uvd_rbc_stop(rdev);
-        radeon_uvd_suspend(rdev);
+        if (rdev->has_uvd) {
+                r600_uvd_rbc_stop(rdev);
+                radeon_uvd_suspend(rdev);
+        }
         si_irq_suspend(rdev);
         radeon_wb_disable(rdev);
         si_pcie_gart_disable(rdev);
@@ -5332,11 +5557,13 @@ int si_init(struct radeon_device *rdev)
         ring->ring_obj = NULL;
         r600_ring_init(rdev, ring, 64 * 1024);
 
-        r = radeon_uvd_init(rdev);
-        if (!r) {
-                ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
-                ring->ring_obj = NULL;
-                r600_ring_init(rdev, ring, 4096);
+        if (rdev->has_uvd) {
+                r = radeon_uvd_init(rdev);
+                if (!r) {
+                        ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+                        ring->ring_obj = NULL;
+                        r600_ring_init(rdev, ring, 4096);
+                }
         }
 
         rdev->ih.ring_obj = NULL;
@@ -5384,7 +5611,8 @@ void si_fini(struct radeon_device *rdev)
         radeon_vm_manager_fini(rdev);
         radeon_ib_pool_fini(rdev);
         radeon_irq_kms_fini(rdev);
-        radeon_uvd_fini(rdev);
+        if (rdev->has_uvd)
+                radeon_uvd_fini(rdev);
         si_pcie_gart_fini(rdev);
         r600_vram_scratch_fini(rdev);
         radeon_gem_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 222877ba6cf5..8f2d7d4f9b28 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -28,6 +28,7 @@
 
 #define TAHITI_GB_ADDR_CONFIG_GOLDEN        0x12011003
 #define VERDE_GB_ADDR_CONFIG_GOLDEN         0x12010002
+#define HAINAN_GB_ADDR_CONFIG_GOLDEN        0x02010001
 
 /* discrete uvd clocks */
 #define CG_UPLL_FUNC_CNTL                               0x634
diff --git a/drivers/gpu/host1x/drm/dc.c b/drivers/gpu/host1x/drm/dc.c
index 1e2060324f02..8c04943f82e3 100644
--- a/drivers/gpu/host1x/drm/dc.c
+++ b/drivers/gpu/host1x/drm/dc.c
@@ -1128,11 +1128,6 @@ static int tegra_dc_probe(struct platform_device *pdev)
                 return err;
 
         regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!regs) {
-                dev_err(&pdev->dev, "failed to get registers\n");
-                return -ENXIO;
-        }
-
         dc->regs = devm_ioremap_resource(&pdev->dev, regs);
         if (IS_ERR(dc->regs))
                 return PTR_ERR(dc->regs);
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index bad8128b283a..21ef68934a20 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -329,7 +329,7 @@ static u32 get_vp_index(uuid_le *type_guid)
                 return 0;
         }
         cur_cpu = (++next_vp % max_cpus);
-        return cur_cpu;
+        return hv_context.vp_index[cur_cpu];
 }
 
 /*
diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c
index df0b69987914..2ebd6ce46108 100644
--- a/drivers/hwmon/abituguru.c
+++ b/drivers/hwmon/abituguru.c
@@ -1414,14 +1414,18 @@ static int abituguru_probe(struct platform_device *pdev)
         pr_info("found Abit uGuru\n");
 
         /* Register sysfs hooks */
-        for (i = 0; i < sysfs_attr_i; i++)
-                if (device_create_file(&pdev->dev,
-                                &data->sysfs_attr[i].dev_attr))
+        for (i = 0; i < sysfs_attr_i; i++) {
+                res = device_create_file(&pdev->dev,
+                                         &data->sysfs_attr[i].dev_attr);
+                if (res)
                         goto abituguru_probe_error;
-        for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
-                if (device_create_file(&pdev->dev,
-                                &abituguru_sysfs_attr[i].dev_attr))
+        }
+        for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++) {
+                res = device_create_file(&pdev->dev,
+                                         &abituguru_sysfs_attr[i].dev_attr);
+                if (res)
                         goto abituguru_probe_error;
+        }
 
         data->hwmon_dev = hwmon_device_register(&pdev->dev);
         if (!IS_ERR(data->hwmon_dev))
diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
index aafa4531b961..52b77afebde1 100644
--- a/drivers/hwmon/iio_hwmon.c
+++ b/drivers/hwmon/iio_hwmon.c
@@ -84,8 +84,10 @@ static int iio_hwmon_probe(struct platform_device *pdev)
                 return PTR_ERR(channels);
 
         st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL);
-        if (st == NULL)
-                return -ENOMEM;
+        if (st == NULL) {
+                ret = -ENOMEM;
+                goto error_release_channels;
+        }
 
         st->channels = channels;
 
@@ -159,7 +161,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
 error_remove_group:
         sysfs_remove_group(&dev->kobj, &st->attr_group);
 error_release_channels:
-        iio_channel_release_all(st->channels);
+        iio_channel_release_all(channels);
         return ret;
 }
 
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index f43f5e571db9..04638aee9039 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -3705,8 +3705,10 @@ static int nct6775_probe(struct platform_device *pdev)
                         data->have_temp |= 1 << i;
                         data->have_temp_fixed |= 1 << i;
                         data->reg_temp[0][i] = reg_temp_alternate[i];
-                        data->reg_temp[1][i] = reg_temp_over[i];
-                        data->reg_temp[2][i] = reg_temp_hyst[i];
+                        if (i < num_reg_temp) {
+                                data->reg_temp[1][i] = reg_temp_over[i];
+                                data->reg_temp[2][i] = reg_temp_hyst[i];
+                        }
                         data->temp_src[i] = i + 1;
                         continue;
                 }
diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
index a478454f690f..dfe6d9527efb 100644
--- a/drivers/hwmon/tmp401.c
+++ b/drivers/hwmon/tmp401.c
@@ -240,7 +240,7 @@ static struct tmp401_data *tmp401_update_device(struct device *dev)
         mutex_lock(&data->update_lock);
 
         next_update = data->last_updated +
-                      msecs_to_jiffies(data->update_interval) + 1;
+                      msecs_to_jiffies(data->update_interval);
         if (time_after(jiffies, next_update) || !data->valid) {
                 if (data->kind != tmp432) {
                         /*
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index 21fbb340ad66..c41ca6354fc5 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -383,7 +383,8 @@ static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
         /* Enable the adapter */
         __i2c_dw_enable(dev, true);
 
-        /* Enable interrupts */
+        /* Clear and enable interrupts */
+        i2c_dw_clear_int(dev);
         dw_writel(dev, DW_IC_INTR_DEFAULT_MASK, DW_IC_INTR_MASK);
 }
 
@@ -448,8 +449,14 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev)
                                 cmd |= BIT(9);
 
                         if (msgs[dev->msg_write_idx].flags & I2C_M_RD) {
+
+                                /* avoid rx buffer overrun */
+                                if (rx_limit - dev->rx_outstanding <= 0)
+                                        break;
+
                                 dw_writel(dev, cmd | 0x100, DW_IC_DATA_CMD);
                                 rx_limit--;
+                                dev->rx_outstanding++;
                         } else
                                 dw_writel(dev, cmd | *buf++, DW_IC_DATA_CMD);
                         tx_limit--; buf_len--;
@@ -502,8 +509,10 @@ i2c_dw_read(struct dw_i2c_dev *dev)
 
                 rx_valid = dw_readl(dev, DW_IC_RXFLR);
 
-                for (; len > 0 && rx_valid > 0; len--, rx_valid--)
+                for (; len > 0 && rx_valid > 0; len--, rx_valid--) {
                         *buf++ = dw_readl(dev, DW_IC_DATA_CMD);
+                        dev->rx_outstanding--;
+                }
 
                 if (len > 0) {
                         dev->status |= STATUS_READ_IN_PROGRESS;
@@ -561,6 +570,7 @@ i2c_dw_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
         dev->msg_err = 0;
         dev->status = STATUS_IDLE;
         dev->abort_source = 0;
+        dev->rx_outstanding = 0;
 
         ret = i2c_dw_wait_bus_not_busy(dev);
         if (ret < 0)
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h
index 9c1840ee09c7..e761ad18dd61 100644
--- a/drivers/i2c/busses/i2c-designware-core.h
+++ b/drivers/i2c/busses/i2c-designware-core.h
@@ -60,6 +60,7 @@
  * @adapter: i2c subsystem adapter node
  * @tx_fifo_depth: depth of the hardware tx fifo
  * @rx_fifo_depth: depth of the hardware rx fifo
+ * @rx_outstanding: current master-rx elements in tx fifo
  */
 struct dw_i2c_dev {
         struct device           *dev;
@@ -88,6 +89,7 @@ struct dw_i2c_dev {
         u32                     master_cfg;
         unsigned int            tx_fifo_depth;
         unsigned int            rx_fifo_depth;
+        int                     rx_outstanding;
 };
 
 #define ACCESS_SWAP             0x00000001
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 8ec91335d95a..35b70a1edf57 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -69,6 +69,7 @@ static int dw_i2c_acpi_configure(struct platform_device *pdev)
 static const struct acpi_device_id dw_i2c_acpi_match[] = {
         { "INT33C2", 0 },
         { "INT33C3", 0 },
+        { "80860F41", 0 },
         { }
 };
 MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match);
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index e1cf2e0e1f23..3a6903f63913 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -231,7 +231,11 @@ static const char *i801_feature_names[] = {
 
 static unsigned int disable_features;
 module_param(disable_features, uint, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(disable_features, "Disable selected driver features");
+MODULE_PARM_DESC(disable_features, "Disable selected driver features:\n"
+        "\t\t  0x01  disable SMBus PEC\n"
+        "\t\t  0x02  disable the block buffer\n"
+        "\t\t  0x08  disable the I2C block read functionality\n"
+        "\t\t  0x10  don't use interrupts ");
 
 /* Make sure the SMBus host is ready to start transmitting.
    Return 0 if it is, -EBUSY if it is not. */
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 3bbd65d35a5e..1a3abd6a0bfc 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -252,7 +252,7 @@ mv64xxx_i2c_do_action(struct mv64xxx_i2c_data *drv_data)
                 writel(drv_data->cntl_bits,
                         drv_data->reg_base + MV64XXX_I2C_REG_CONTROL);
                 drv_data->block = 0;
-                wake_up_interruptible(&drv_data->waitq);
+                wake_up(&drv_data->waitq);
                 break;
 
         case MV64XXX_I2C_ACTION_CONTINUE:
@@ -300,7 +300,7 @@ mv64xxx_i2c_do_action(struct mv64xxx_i2c_data *drv_data)
                 writel(drv_data->cntl_bits | MV64XXX_I2C_REG_CONTROL_STOP,
                         drv_data->reg_base + MV64XXX_I2C_REG_CONTROL);
                 drv_data->block = 0;
-                wake_up_interruptible(&drv_data->waitq);
+                wake_up(&drv_data->waitq);
                 break;
 
         case MV64XXX_I2C_ACTION_INVALID:
@@ -315,7 +315,7 @@ mv64xxx_i2c_do_action(struct mv64xxx_i2c_data *drv_data)
                 writel(drv_data->cntl_bits | MV64XXX_I2C_REG_CONTROL_STOP,
                         drv_data->reg_base + MV64XXX_I2C_REG_CONTROL);
                 drv_data->block = 0;
-                wake_up_interruptible(&drv_data->waitq);
+                wake_up(&drv_data->waitq);
                 break;
         }
 }
@@ -381,7 +381,7 @@ mv64xxx_i2c_wait_for_completion(struct mv64xxx_i2c_data *drv_data)
         unsigned long   flags;
         char            abort = 0;
 
-        time_left = wait_event_interruptible_timeout(drv_data->waitq,
+        time_left = wait_event_timeout(drv_data->waitq,
                 !drv_data->block, drv_data->adapter.timeout);
 
         spin_lock_irqsave(&drv_data->lock, flags);
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 6e8ee92ab553..cab1c91b75a3 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -1082,11 +1082,6 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
         /* map the registers */
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (res == NULL) {
-                dev_err(&pdev->dev, "cannot find IO resource\n");
-                return -ENOENT;
-        }
-
         i2c->regs = devm_ioremap_resource(&pdev->dev, res);
 
         if (IS_ERR(i2c->regs))
diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
index 5a7ad240bd26..a63c7d506836 100644
--- a/drivers/i2c/busses/i2c-sirf.c
+++ b/drivers/i2c/busses/i2c-sirf.c
@@ -303,12 +303,6 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
         adap->class = I2C_CLASS_HWMON;
 
         mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (mem_res == NULL) {
-                dev_err(&pdev->dev, "Unable to get MEM resource\n");
-                err = -EINVAL;
-                goto out;
-        }
-
         siic->base = devm_ioremap_resource(&pdev->dev, mem_res);
         if (IS_ERR(siic->base)) {
                 err = PTR_ERR(siic->base);
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index b60ff90adc39..9aa1b60f7fdd 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -714,11 +714,6 @@ static int tegra_i2c_probe(struct platform_device *pdev)
         int ret = 0;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "no mem resource\n");
-                return -EINVAL;
-        }
-
         base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(base))
                 return PTR_ERR(base);
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 6b63cc7eb71e..48e31ed69dbf 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -892,7 +892,8 @@ i2c_sysfs_delete_device(struct device *dev, struct device_attribute *attr,
 }
 
 static DEVICE_ATTR(new_device, S_IWUSR, NULL, i2c_sysfs_new_device);
-static DEVICE_ATTR(delete_device, S_IWUSR, NULL, i2c_sysfs_delete_device);
+static DEVICE_ATTR_IGNORE_LOCKDEP(delete_device, S_IWUSR, NULL,
+                                   i2c_sysfs_delete_device);
 
 static struct attribute *i2c_adapter_attrs[] = {
         &dev_attr_name.attr,
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 9f3a8ef1fb3e..b3d03d335948 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -390,8 +390,8 @@ static int exynos_adc_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int exynos_adc_suspend(struct device *dev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
-        struct exynos_adc *info = platform_get_drvdata(pdev);
+        struct iio_dev *indio_dev = dev_get_drvdata(dev);
+        struct exynos_adc *info = iio_priv(indio_dev);
         u32 con;
 
         if (info->version == ADC_V2) {
@@ -413,8 +413,8 @@ static int exynos_adc_suspend(struct device *dev)
 
 static int exynos_adc_resume(struct device *dev)
 {
-        struct platform_device *pdev = to_platform_device(dev);
-        struct exynos_adc *info = platform_get_drvdata(pdev);
+        struct iio_dev *indio_dev = dev_get_drvdata(dev);
+        struct exynos_adc *info = iio_priv(indio_dev);
         int ret;
 
         ret = regulator_enable(info->vdd);
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index bd33473f8e38..ed9bc8ae9330 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -312,6 +312,8 @@ int st_sensors_read_info_raw(struct iio_dev *indio_dev,
                         goto read_error;
 
                 *val = *val >> ch->scan_type.shift;
+
+                err = st_sensors_set_enable(indio_dev, false);
         }
         mutex_unlock(&indio_dev->mlock);
 
diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index f4a6f0838327..b61160bd935e 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -5,7 +5,7 @@ menu "Digital to analog converters"
 
 config AD5064
         tristate "Analog Devices AD5064 and similar multi-channel DAC driver"
-        depends on (SPI_MASTER || I2C)
+        depends on (SPI_MASTER && I2C!=m) || I2C
         help
           Say yes here to build support for Analog Devices AD5024, AD5025, AD5044,
           AD5045, AD5064, AD5064-1, AD5065, AD5628, AD5629R, AD5648, AD5666, AD5668,
@@ -27,7 +27,7 @@ config AD5360
 
 config AD5380
         tristate "Analog Devices AD5380/81/82/83/84/90/91/92 DAC driver"
-        depends on (SPI_MASTER || I2C)
+        depends on (SPI_MASTER && I2C!=m) || I2C
         select REGMAP_I2C if I2C
         select REGMAP_SPI if SPI_MASTER
         help
@@ -57,7 +57,7 @@ config AD5624R_SPI
 
 config AD5446
         tristate "Analog Devices AD5446 and similar single channel DACs driver"
-        depends on (SPI_MASTER || I2C)
+        depends on (SPI_MASTER && I2C!=m) || I2C
         help
           Say yes here to build support for Analog Devices AD5300, AD5301, AD5310,
           AD5311, AD5320, AD5321, AD5444, AD5446, AD5450, AD5451, AD5452, AD5453,
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 0bfd8cf25200..5c68e4486845 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -342,10 +342,10 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
                 wacom->id[idx] = (data[2] << 4) | (data[3] >> 4) |
                         ((data[7] & 0x0f) << 20) | ((data[8] & 0xf0) << 12);
 
-                switch (wacom->id[idx] & 0xfffff) {
+                switch (wacom->id[idx]) {
                 case 0x812: /* Inking pen */
                 case 0x801: /* Intuos3 Inking pen */
-                case 0x20802: /* Intuos4 Inking Pen */
+                case 0x120802: /* Intuos4/5 Inking Pen */
                 case 0x012:
                         wacom->tool[idx] = BTN_TOOL_PENCIL;
                         break;
@@ -356,11 +356,13 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
                 case 0x823: /* Intuos3 Grip Pen */
                 case 0x813: /* Intuos3 Classic Pen */
                 case 0x885: /* Intuos3 Marker Pen */
-                case 0x802: /* Intuos4 General Pen */
-                case 0x804: /* Intuos4 Marker Pen */
-                case 0x40802: /* Intuos4 Classic Pen */
-                case 0x18802: /* DTH2242 Grip Pen */
+                case 0x802: /* Intuos4/5 13HD/24HD General Pen */
+                case 0x804: /* Intuos4/5 13HD/24HD Marker Pen */
                 case 0x022:
+                case 0x100804: /* Intuos4/5 13HD/24HD Art Pen */
+                case 0x140802: /* Intuos4/5 13HD/24HD Classic Pen */
+                case 0x160802: /* Cintiq 13HD Pro Pen */
+                case 0x180802: /* DTH2242 Pen */
                         wacom->tool[idx] = BTN_TOOL_PEN;
                         break;
 
@@ -391,10 +393,14 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
                 case 0x82b: /* Intuos3 Grip Pen Eraser */
                 case 0x81b: /* Intuos3 Classic Pen Eraser */
                 case 0x91b: /* Intuos3 Airbrush Eraser */
-                case 0x80c: /* Intuos4 Marker Pen Eraser */
-                case 0x80a: /* Intuos4 General Pen Eraser */
-                case 0x4080a: /* Intuos4 Classic Pen Eraser */
-                case 0x90a: /* Intuos4 Airbrush Eraser */
+                case 0x80c: /* Intuos4/5 13HD/24HD Marker Pen Eraser */
+                case 0x80a: /* Intuos4/5 13HD/24HD General Pen Eraser */
+                case 0x90a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
+                case 0x14080a: /* Intuos4/5 13HD/24HD Classic Pen Eraser */
+                case 0x10090a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
+                case 0x10080c: /* Intuos4/5 13HD/24HD Art Pen Eraser */
+                case 0x16080a: /* Cintiq 13HD Pro Pen Eraser */
+                case 0x18080a: /* DTH2242 Eraser */
                         wacom->tool[idx] = BTN_TOOL_RUBBER;
                         break;
 
@@ -402,7 +408,8 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
                 case 0x912:
                 case 0x112:
                 case 0x913: /* Intuos3 Airbrush */
-                case 0x902: /* Intuos4 Airbrush */
+                case 0x902: /* Intuos4/5 13HD/24HD Airbrush */
+                case 0x100902: /* Intuos4/5 13HD/24HD Airbrush */
                         wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
                         break;
 
@@ -533,10 +540,8 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
                                 input_report_key(input, BTN_8, (data[3] & 0x80));
                         }
                         if (data[1] | (data[2] & 0x01) | data[3]) {
-                                input_report_key(input, wacom->tool[1], 1);
                                 input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
                         } else {
-                                input_report_key(input, wacom->tool[1], 0);
                                 input_report_abs(input, ABS_MISC, 0);
                         }
                 } else if (features->type == DTK) {
@@ -546,6 +551,26 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
                         input_report_key(input, BTN_3, (data[6] & 0x08));
                         input_report_key(input, BTN_4, (data[6] & 0x10));
                         input_report_key(input, BTN_5, (data[6] & 0x20));
+                        if (data[6] & 0x3f) {
+                                input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
+                        } else {
+                                input_report_abs(input, ABS_MISC, 0);
+                        }
+                } else if (features->type == WACOM_13HD) {
+                        input_report_key(input, BTN_0, (data[3] & 0x01));
+                        input_report_key(input, BTN_1, (data[4] & 0x01));
+                        input_report_key(input, BTN_2, (data[4] & 0x02));
+                        input_report_key(input, BTN_3, (data[4] & 0x04));
+                        input_report_key(input, BTN_4, (data[4] & 0x08));
+                        input_report_key(input, BTN_5, (data[4] & 0x10));
+                        input_report_key(input, BTN_6, (data[4] & 0x20));
+                        input_report_key(input, BTN_7, (data[4] & 0x40));
+                        input_report_key(input, BTN_8, (data[4] & 0x80));
+                        if ((data[3] & 0x01) | data[4]) {
+                                input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
+                        } else {
+                                input_report_abs(input, ABS_MISC, 0);
+                        }
                 } else if (features->type == WACOM_24HD) {
                         input_report_key(input, BTN_0, (data[6] & 0x01));
                         input_report_key(input, BTN_1, (data[6] & 0x02));
@@ -590,10 +615,8 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
                         }
 
                         if (data[1] | data[2] | (data[3] & 0x1f) | data[4] | data[6] | data[8]) {
-                                input_report_key(input, wacom->tool[1], 1);
                                 input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
                         } else {
-                                input_report_key(input, wacom->tool[1], 0);
                                 input_report_abs(input, ABS_MISC, 0);
                         }
                 } else if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
@@ -618,10 +641,8 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
                         }
 
                         if (data[2] | (data[3] & 0x01) | data[4] | data[5]) {
-                                input_report_key(input, wacom->tool[1], 1);
                                 input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
                         } else {
-                                input_report_key(input, wacom->tool[1], 0);
                                 input_report_abs(input, ABS_MISC, 0);
                         }
                 } else {
@@ -668,10 +689,8 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
                         if ((data[5] & 0x1f) | data[6] | (data[1] & 0x1f) |
                                 data[2] | (data[3] & 0x1f) | data[4] | data[8] |
                                 (data[7] & 0x01)) {
-                                input_report_key(input, wacom->tool[1], 1);
                                 input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
                         } else {
-                                input_report_key(input, wacom->tool[1], 0);
                                 input_report_abs(input, ABS_MISC, 0);
                         }
                 }
@@ -1301,6 +1320,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
         case INTUOS4L:
         case CINTIQ:
         case WACOM_BEE:
+        case WACOM_13HD:
         case WACOM_21UX2:
         case WACOM_22HD:
         case WACOM_24HD:
@@ -1530,15 +1550,15 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
                 __set_bit(KEY_PROG1, input_dev->keybit);
                 __set_bit(KEY_PROG2, input_dev->keybit);
                 __set_bit(KEY_PROG3, input_dev->keybit);
+
+                input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
+                input_set_abs_params(input_dev, ABS_THROTTLE, 0, 71, 0, 0);
                 /* fall through */
 
         case DTK:
                 for (i = 0; i < 6; i++)
                         __set_bit(BTN_0 + i, input_dev->keybit);
 
-                input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
-                input_set_abs_params(input_dev, ABS_THROTTLE, 0, 71, 0, 0);
-
                 __set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
 
                 wacom_setup_cintiq(wacom_wac);
@@ -1579,6 +1599,15 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
                 wacom_setup_cintiq(wacom_wac);
                 break;
 
+        case WACOM_13HD:
+                for (i = 0; i < 9; i++)
+                        __set_bit(BTN_0 + i, input_dev->keybit);
+
+                input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
+                __set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
+                wacom_setup_cintiq(wacom_wac);
+                break;
+
         case INTUOS3:
         case INTUOS3L:
                 __set_bit(BTN_4, input_dev->keybit);
@@ -1950,6 +1979,9 @@ static const struct wacom_features wacom_features_0xC5 =
 static const struct wacom_features wacom_features_0xC6 =
         { "Wacom Cintiq 12WX",    WACOM_PKGLEN_INTUOS,    53020, 33440, 1023,
           63, WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0x304 =
+        { "Wacom Cintiq 13HD",    WACOM_PKGLEN_INTUOS,    59552, 33848, 1023,
+          63, WACOM_13HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0xC7 =
         { "Wacom DTU1931",        WACOM_PKGLEN_GRAPHIRE,  37832, 30305,  511,
           0, PL, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -1959,6 +1991,9 @@ static const struct wacom_features wacom_features_0xCE =
 static const struct wacom_features wacom_features_0xF0 =
         { "Wacom DTU1631",        WACOM_PKGLEN_GRAPHIRE,  34623, 19553,  511,
           0, DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x57 =
+        { "Wacom DTK2241",        WACOM_PKGLEN_INTUOS,    95840, 54260, 2047,
+          63, DTK, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES};
 static const struct wacom_features wacom_features_0x59 = /* Pen */
         { "Wacom DTH2242",        WACOM_PKGLEN_INTUOS,    95840, 54260, 2047,
           63, DTK, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES,
@@ -1972,6 +2007,12 @@ static const struct wacom_features wacom_features_0xCC =
 static const struct wacom_features wacom_features_0xFA =
         { "Wacom Cintiq 22HD",    WACOM_PKGLEN_INTUOS,    95840, 54260, 2047,
           63, WACOM_22HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0x5B =
+        { "Wacom Cintiq 22HDT", WACOM_PKGLEN_INTUOS,      95840, 54260, 2047,
+          63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x5e };
+static const struct wacom_features wacom_features_0x5E =
+        { "Wacom Cintiq 22HDT", .type = WACOM_24HDT,
+          .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x5b, .touch_max = 10 };
 static const struct wacom_features wacom_features_0x90 =
         { "Wacom ISDv4 90",       WACOM_PKGLEN_GRAPHIRE,  26202, 16325,  255,
           0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -2143,8 +2184,11 @@ const struct usb_device_id wacom_ids[] = {
         { USB_DEVICE_WACOM(0x43) },
         { USB_DEVICE_WACOM(0x44) },
         { USB_DEVICE_WACOM(0x45) },
+        { USB_DEVICE_WACOM(0x57) },
         { USB_DEVICE_WACOM(0x59) },
         { USB_DEVICE_DETAILED(0x5D, USB_CLASS_HID, 0, 0) },
+        { USB_DEVICE_WACOM(0x5B) },
+        { USB_DEVICE_DETAILED(0x5E, USB_CLASS_HID, 0, 0) },
         { USB_DEVICE_WACOM(0xB0) },
         { USB_DEVICE_WACOM(0xB1) },
         { USB_DEVICE_WACOM(0xB2) },
@@ -2205,6 +2249,7 @@ const struct usb_device_id wacom_ids[] = {
         { USB_DEVICE_WACOM(0x100) },
         { USB_DEVICE_WACOM(0x101) },
         { USB_DEVICE_WACOM(0x10D) },
+        { USB_DEVICE_WACOM(0x304) },
         { USB_DEVICE_WACOM(0x4001) },
         { USB_DEVICE_WACOM(0x47) },
         { USB_DEVICE_WACOM(0xF4) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 5f9a7721e16c..dfc9e08e7f70 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -82,6 +82,7 @@ enum {
         WACOM_24HD,
         CINTIQ,
         WACOM_BEE,
+        WACOM_13HD,
         WACOM_MO,
         WIRELESS,
         BAMBOO_PT,
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 17c9097f3b5d..39f3df8670c3 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -216,7 +216,7 @@ static int egalax_ts_probe(struct i2c_client *client,
         input_set_abs_params(input_dev,
                              ABS_MT_POSITION_X, 0, EGALAX_MAX_X, 0, 0);
         input_set_abs_params(input_dev,
-                             ABS_MT_POSITION_X, 0, EGALAX_MAX_Y, 0, 0);
+                             ABS_MT_POSITION_Y, 0, EGALAX_MAX_Y, 0, 0);
         input_mt_init_slots(input_dev, MAX_SUPPORT_POINTS, 0);
 
         input_set_drvdata(input_dev, ts);
diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index 9b1b274c7d25..c123709acf82 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -93,7 +93,7 @@ capi_ctr_put(struct capi_ctr *ctr)
 
 static inline struct capi_ctr *get_capi_ctr_by_nr(u16 contr)
 {
-        if (contr - 1 >= CAPI_MAXCONTR)
+        if (contr < 1 || contr - 1 >= CAPI_MAXCONTR)
                 return NULL;
 
         return capi_controller[contr - 1];
@@ -103,7 +103,7 @@ static inline struct capi20_appl *__get_capi_appl_by_nr(u16 applid)
 {
         lockdep_assert_held(&capi_controller_lock);
 
-        if (applid - 1 >= CAPI_MAXAPPL)
+        if (applid < 1 || applid - 1 >= CAPI_MAXAPPL)
                 return NULL;
 
         return capi_applications[applid - 1];
@@ -111,7 +111,7 @@ static inline struct capi20_appl *__get_capi_appl_by_nr(u16 applid)
 
 static inline struct capi20_appl *get_capi_appl_by_nr(u16 applid)
 {
-        if (applid - 1 >= CAPI_MAXAPPL)
+        if (applid < 1 || applid - 1 >= CAPI_MAXAPPL)
                 return NULL;
 
         return rcu_dereference(capi_applications[applid - 1]);
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index a0d931bcb37c..b02b679abf31 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -107,6 +107,10 @@ static int create_gpio_led(const struct gpio_led *template,
                 return 0;
         }
 
+        ret = devm_gpio_request(parent, template->gpio, template->name);
+        if (ret < 0)
+                return ret;
+
         led_dat->cdev.name = template->name;
         led_dat->cdev.default_trigger = template->default_trigger;
         led_dat->gpio = template->gpio;
@@ -126,10 +130,7 @@ static int create_gpio_led(const struct gpio_led *template,
         if (!template->retain_state_suspended)
                 led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
 
-        ret = devm_gpio_request_one(parent, template->gpio,
-                                    (led_dat->active_low ^ state) ?
-                                    GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
-                                    template->name);
+        ret = gpio_direction_output(led_dat->gpio, led_dat->active_low ^ state);
         if (ret < 0)
                 return ret;
 
diff --git a/drivers/leds/leds-ot200.c b/drivers/leds/leds-ot200.c
index ee14662ed5ce..98cae529373f 100644
--- a/drivers/leds/leds-ot200.c
+++ b/drivers/leds/leds-ot200.c
@@ -47,37 +47,37 @@ static struct ot200_led leds[] = {
         {
                 .name = "led_1",
                 .port = 0x49,
-                .mask = BIT(7),
+                .mask = BIT(6),
         },
         {
                 .name = "led_2",
                 .port = 0x49,
-                .mask = BIT(6),
+                .mask = BIT(5),
         },
         {
                 .name = "led_3",
                 .port = 0x49,
-                .mask = BIT(5),
+                .mask = BIT(4),
         },
         {
                 .name = "led_4",
                 .port = 0x49,
-                .mask = BIT(4),
+                .mask = BIT(3),
         },
         {
                 .name = "led_5",
                 .port = 0x49,
-                .mask = BIT(3),
+                .mask = BIT(2),
         },
         {
                 .name = "led_6",
                 .port = 0x49,
-                .mask = BIT(2),
+                .mask = BIT(1),
         },
         {
                 .name = "led_7",
                 .port = 0x49,
-                .mask = BIT(1),
+                .mask = BIT(0),
         }
 };
 
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 699187ab3800..5b9ac32801c7 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -1002,6 +1002,7 @@ void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 idx)
                         kill_guest(&lg->cpus[0],
                                    "Cannot populate switcher mapping");
                 }
+                lg->pgdirs[pgdir].last_host_cpu = -1;
         }
 }
 
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 759cffc45cab..88f2f802d528 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2188,7 +2188,7 @@ static int maybe_resize_metadata_dev(struct dm_target *ti, bool *need_commit)
 
         *need_commit = false;
 
-        metadata_dev_size = get_metadata_dev_size(pool->md_dev);
+        metadata_dev_size = get_metadata_dev_size_in_blocks(pool->md_dev);
 
         r = dm_pool_get_metadata_dev_size(pool->pmd, &sb_metadata_dev_size);
         if (r) {
@@ -2197,7 +2197,7 @@ static int maybe_resize_metadata_dev(struct dm_target *ti, bool *need_commit)
         }
 
         if (metadata_dev_size < sb_metadata_dev_size) {
-                DMERR("metadata device (%llu sectors) too small: expected %llu",
+                DMERR("metadata device (%llu blocks) too small: expected %llu",
                       metadata_dev_size, sb_metadata_dev_size);
                 return -EINVAL;
 
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index cadf1cc19aaf..04644e7b42b1 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -1560,12 +1560,6 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, emif);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(emif->dev, "%s: error getting memory resource\n",
-                        __func__);
-                goto error;
-        }
-
         emif->base = devm_ioremap_resource(emif->dev, res);
         if (IS_ERR(emif->base))
                 goto error;
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d9aed1593e5d..d54e985748b7 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -579,7 +579,7 @@ config AB8500_CORE
 
 config AB8500_DEBUG
        bool "Enable debug info via debugfs"
-       depends on AB8500_CORE && DEBUG_FS
+       depends on AB8500_GPADC && DEBUG_FS
        default y if DEBUG_FS
        help
          Select this option if you want debug information using the debug
@@ -818,6 +818,7 @@ config MFD_TPS65910
 config MFD_TPS65912
         bool "TI TPS65912 Power Management chip"
         depends on GPIOLIB
+        select MFD_CORE
         help
           If you say yes here you get support for the TPS65912 series of
           PM chips.
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 8e8a016effe9..258b367e3989 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -868,6 +868,15 @@ static struct resource ab8500_chargalg_resources[] = {};
 #ifdef CONFIG_DEBUG_FS
 static struct resource ab8500_debug_resources[] = {
         {
+                .name   = "IRQ_AB8500",
+                /*
+                 * Number will be filled in. NOTE: this is deliberately
+                 * not flagged as an IRQ in ordet to avoid remapping using
+                 * the irqdomain in the MFD core, so that this IRQ passes
+                 * unremapped to the debug code.
+                 */
+        },
+        {
                 .name   = "IRQ_FIRST",
                 .start  = AB8500_INT_MAIN_EXT_CH_NOT_OK,
                 .end    = AB8500_INT_MAIN_EXT_CH_NOT_OK,
@@ -1051,6 +1060,7 @@ static struct mfd_cell ab8500_devs[] = {
         },
         {
                 .name = "ab8500-gpadc",
+                .of_compatible = "stericsson,ab8500-gpadc",
                 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
                 .resources = ab8500_gpadc_resources,
         },
@@ -1097,7 +1107,7 @@ static struct mfd_cell ab8500_devs[] = {
                 .of_compatible = "stericsson,ab8500-denc",
         },
         {
-                .name = "ab8500-gpio",
+                .name = "pinctrl-ab8500",
                 .of_compatible = "stericsson,ab8500-gpio",
         },
         {
@@ -1208,6 +1218,7 @@ static struct mfd_cell ab8505_devs[] = {
         },
         {
                 .name = "ab8500-gpadc",
+                .of_compatible = "stericsson,ab8500-gpadc",
                 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
                 .resources = ab8505_gpadc_resources,
         },
@@ -1234,7 +1245,7 @@ static struct mfd_cell ab8505_devs[] = {
                 .name = "ab8500-leds",
         },
         {
-                .name = "ab8500-gpio",
+                .name = "pinctrl-ab8505",
         },
         {
                 .name = "ab8500-usb",
@@ -1271,6 +1282,7 @@ static struct mfd_cell ab8540_devs[] = {
         },
         {
                 .name = "ab8500-gpadc",
+                .of_compatible = "stericsson,ab8500-gpadc",
                 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
                 .resources = ab8505_gpadc_resources,
         },
@@ -1302,7 +1314,7 @@ static struct mfd_cell ab8540_devs[] = {
                 .resources = ab8500_temp_resources,
         },
         {
-                .name = "ab8500-gpio",
+                .name = "pinctrl-ab8540",
         },
         {
                 .name = "ab8540-usb",
@@ -1712,6 +1724,12 @@ static int ab8500_probe(struct platform_device *pdev)
         if (ret)
                 return ret;
 
+#if CONFIG_DEBUG_FS
+        /* Pass to debugfs */
+        ab8500_debug_resources[0].start = ab8500->irq;
+        ab8500_debug_resources[0].end = ab8500->irq;
+#endif
+
         if (is_ab9540(ab8500))
                 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
                                 ARRAY_SIZE(ab9540_devs), NULL,
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index b88bbbc15f1e..37b7ce4c7c3b 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -91,12 +91,10 @@
 #include <linux/ctype.h>
 #endif
 
-/* TODO: this file should not reference IRQ_DB8500_AB8500! */
-#include <mach/irqs.h>
-
 static u32 debug_bank;
 static u32 debug_address;
 
+static int irq_ab8500;
 static int irq_first;
 static int irq_last;
 static u32 *irq_count;
@@ -1589,7 +1587,7 @@ void ab8500_debug_register_interrupt(int line)
 {
         if (line < num_interrupt_lines) {
                 num_interrupts[line]++;
-                if (suspend_test_wake_cause_interrupt_is_mine(IRQ_DB8500_AB8500))
+                if (suspend_test_wake_cause_interrupt_is_mine(irq_ab8500))
                         num_wake_interrupts[line]++;
         }
 }
@@ -2941,6 +2939,7 @@ static int ab8500_debug_probe(struct platform_device *plf)
         struct dentry *file;
         int ret = -ENOMEM;
         struct ab8500 *ab8500;
+        struct resource *res;
         debug_bank = AB8500_MISC;
         debug_address = AB8500_REV_REG & 0x00FF;
 
@@ -2959,6 +2958,15 @@ static int ab8500_debug_probe(struct platform_device *plf)
         if (!event_name)
                 goto out_freedev_attr;
 
+        res = platform_get_resource_byname(plf, 0, "IRQ_AB8500");
+        if (!res) {
+                dev_err(&plf->dev, "AB8500 irq not found, err %d\n",
+                        irq_first);
+                ret = -ENXIO;
+                goto out_freeevent_name;
+        }
+        irq_ab8500 = res->start;
+
         irq_first = platform_get_irq_byname(plf, "IRQ_FIRST");
         if (irq_first < 0) {
                 dev_err(&plf->dev, "First irq not found, err %d\n",
diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c
index 5e65b28a5d09..13f7866de46e 100644
--- a/drivers/mfd/ab8500-gpadc.c
+++ b/drivers/mfd/ab8500-gpadc.c
@@ -907,14 +907,17 @@ static int ab8500_gpadc_suspend(struct device *dev)
 static int ab8500_gpadc_resume(struct device *dev)
 {
         struct ab8500_gpadc *gpadc = dev_get_drvdata(dev);
+        int ret;
 
-        regulator_enable(gpadc->regu);
+        ret = regulator_enable(gpadc->regu);
+        if (ret)
+                dev_err(dev, "Failed to enable vtvout LDO: %d\n", ret);
 
         pm_runtime_mark_last_busy(gpadc->dev);
         pm_runtime_put_autosuspend(gpadc->dev);
 
         mutex_unlock(&gpadc->ab8500_gpadc_lock);
-        return 0;
+        return ret;
 }
 
 static int ab8500_gpadc_probe(struct platform_device *pdev)
diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index fbca1ced49fa..8e0dae59844d 100644
--- a/drivers/mfd/ab8500-sysctrl.c
+++ b/drivers/mfd/ab8500-sysctrl.c
@@ -23,7 +23,7 @@
 
 static struct device *sysctrl_dev;
 
-void ab8500_power_off(void)
+static void ab8500_power_off(void)
 {
         sigset_t old;
         sigset_t all;
@@ -104,7 +104,7 @@ void ab8500_restart(char mode, const char *cmd)
 
         plat = dev_get_platdata(sysctrl_dev->parent);
         pdata = plat->sysctrl;
-        if (pdata->reboot_reason_code)
+        if (pdata && pdata->reboot_reason_code)
                 reason = pdata->reboot_reason_code(cmd);
         else
                 pr_warn("[%s] No reboot reason set. Default reason %d\n",
@@ -188,14 +188,15 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev)
 
         plat = dev_get_platdata(pdev->dev.parent);
 
-        if (!(plat && plat->sysctrl))
+        if (!plat)
                 return -EINVAL;
 
-        if (plat->pm_power_off)
+        sysctrl_dev = &pdev->dev;
+
+        if (!pm_power_off)
                 pm_power_off = ab8500_power_off;
 
         pdata = plat->sysctrl;
-
         if (pdata) {
                 int last, ret, i, j;
 
@@ -226,6 +227,10 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev)
 static int ab8500_sysctrl_remove(struct platform_device *pdev)
 {
         sysctrl_dev = NULL;
+
+        if (pm_power_off == ab8500_power_off)
+                pm_power_off = NULL;
+
         return 0;
 }
 
diff --git a/drivers/mfd/abx500-core.c b/drivers/mfd/abx500-core.c
index 9818afba2515..3714acb61458 100644
--- a/drivers/mfd/abx500-core.c
+++ b/drivers/mfd/abx500-core.c
@@ -156,7 +156,7 @@ EXPORT_SYMBOL(abx500_startup_irq_enabled);
 void abx500_dump_all_banks(void)
 {
         struct abx500_ops *ops;
-        struct device dummy_child = {0};
+        struct device dummy_child = {NULL};
         struct abx500_device_entry *dev_entry;
 
         list_for_each_entry(dev_entry, &abx500_list, list) {
diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c
index 19193cf1e7a1..367ccb58ecb1 100644
--- a/drivers/mfd/cros_ec_spi.c
+++ b/drivers/mfd/cros_ec_spi.c
@@ -120,7 +120,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
 
                 for (end = ptr + EC_MSG_PREAMBLE_COUNT; ptr != end; ptr++) {
                         if (*ptr == EC_MSG_HEADER) {
-                                dev_dbg(ec_dev->dev, "msg found at %ld\n",
+                                dev_dbg(ec_dev->dev, "msg found at %zd\n",
                                         ptr - ec_dev->din);
                                 break;
                         }
@@ -154,7 +154,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
                  * maximum-supported transfer size.
                  */
                 todo = min(need_len, 256);
-                dev_dbg(ec_dev->dev, "loop, todo=%d, need_len=%d, ptr=%ld\n",
+                dev_dbg(ec_dev->dev, "loop, todo=%d, need_len=%d, ptr=%zd\n",
                         todo, need_len, ptr - ec_dev->din);
 
                 memset(&trans, '\0', sizeof(trans));
@@ -178,7 +178,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev,
                 need_len -= todo;
         }
 
-        dev_dbg(ec_dev->dev, "loop done, ptr=%ld\n", ptr - ec_dev->din);
+        dev_dbg(ec_dev->dev, "loop done, ptr=%zd\n", ptr - ec_dev->din);
 
         return 0;
 }
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 319b8abe742b..66f80973596b 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -1613,6 +1613,8 @@ static unsigned long dsiclk_rate(u8 n)
 
         if (divsel == PRCM_DSI_PLLOUT_SEL_OFF)
                 divsel = dsiclk[n].divsel;
+        else
+                dsiclk[n].divsel = divsel;
 
         switch (divsel) {
         case PRCM_DSI_PLLOUT_SEL_PHI_4:
@@ -3095,6 +3097,7 @@ static struct mfd_cell db8500_prcmu_devs[] = {
                 .num_resources = ARRAY_SIZE(db8500_thsens_resources),
                 .resources = db8500_thsens_resources,
                 .platform_data = &db8500_thsens_data,
+                .pdata_size = sizeof(db8500_thsens_data),
         },
 };
 
diff --git a/drivers/mfd/intel_msic.c b/drivers/mfd/intel_msic.c
index 5be3b5e13855..d8d5137f9717 100644
--- a/drivers/mfd/intel_msic.c
+++ b/drivers/mfd/intel_msic.c
@@ -414,11 +414,6 @@ static int intel_msic_probe(struct platform_device *pdev)
          * the clients via intel_msic_irq_read().
          */
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "failed to get SRAM iomem resource\n");
-                return -ENODEV;
-        }
-
         msic->irq_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(msic->irq_base))
                 return PTR_ERR(msic->irq_base);
diff --git a/drivers/mfd/si476x-cmd.c b/drivers/mfd/si476x-cmd.c
index de48b4e88450..6f1ef63086c9 100644
--- a/drivers/mfd/si476x-cmd.c
+++ b/drivers/mfd/si476x-cmd.c
@@ -29,6 +29,8 @@
 
 #include <linux/mfd/si476x-core.h>
 
+#include <asm/unaligned.h>
+
 #define msb(x)                  ((u8)((u16) x >> 8))
 #define lsb(x)                  ((u8)((u16) x &  0x00FF))
 
@@ -150,7 +152,7 @@ enum si476x_acf_status_report_bits {
         SI476X_ACF_SOFTMUTE_INT = (1 << 0),
 
         SI476X_ACF_SMUTE        = (1 << 0),
-        SI476X_ACF_SMATTN       = 0b11111,
+        SI476X_ACF_SMATTN       = 0x1f,
         SI476X_ACF_PILOT        = (1 << 7),
         SI476X_ACF_STBLEND      = ~SI476X_ACF_PILOT,
 };
@@ -483,7 +485,7 @@ int si476x_core_cmd_get_property(struct si476x_core *core, u16 property)
         if (err < 0)
                 return err;
         else
-                return be16_to_cpup((__be16 *)(resp + 2));
+                return get_unaligned_be16(resp + 2);
 }
 EXPORT_SYMBOL_GPL(si476x_core_cmd_get_property);
 
@@ -772,18 +774,18 @@ int si476x_core_cmd_am_rsq_status(struct si476x_core *core,
         if (!report)
                 return err;
 
-        report->snrhint         = 0b00001000 & resp[1];
-        report->snrlint         = 0b00000100 & resp[1];
-        report->rssihint        = 0b00000010 & resp[1];
-        report->rssilint        = 0b00000001 & resp[1];
+        report->snrhint         = 0x08 & resp[1];
+        report->snrlint         = 0x04 & resp[1];
+        report->rssihint        = 0x02 & resp[1];
+        report->rssilint        = 0x01 & resp[1];
 
-        report->bltf            = 0b10000000 & resp[2];
-        report->snr_ready       = 0b00100000 & resp[2];
-        report->rssiready       = 0b00001000 & resp[2];
-        report->afcrl           = 0b00000010 & resp[2];
-        report->valid           = 0b00000001 & resp[2];
+        report->bltf            = 0x80 & resp[2];
+        report->snr_ready       = 0x20 & resp[2];
+        report->rssiready       = 0x08 & resp[2];
+        report->afcrl           = 0x02 & resp[2];
+        report->valid           = 0x01 & resp[2];
 
-        report->readfreq        = be16_to_cpup((__be16 *)(resp + 3));
+        report->readfreq        = get_unaligned_be16(resp + 3);
         report->freqoff         = resp[5];
         report->rssi            = resp[6];
         report->snr             = resp[7];
@@ -931,26 +933,26 @@ int si476x_core_cmd_fm_rds_status(struct si476x_core *core,
         if (err < 0 || report == NULL)
                 return err;
 
-        report->rdstpptyint     = 0b00010000 & resp[1];
-        report->rdspiint        = 0b00001000 & resp[1];
-        report->rdssyncint      = 0b00000010 & resp[1];
-        report->rdsfifoint      = 0b00000001 & resp[1];
+        report->rdstpptyint     = 0x10 & resp[1];
+        report->rdspiint        = 0x08 & resp[1];
+        report->rdssyncint      = 0x02 & resp[1];
+        report->rdsfifoint      = 0x01 & resp[1];
 
-        report->tpptyvalid      = 0b00010000 & resp[2];
-        report->pivalid         = 0b00001000 & resp[2];
-        report->rdssync         = 0b00000010 & resp[2];
-        report->rdsfifolost     = 0b00000001 & resp[2];
+        report->tpptyvalid      = 0x10 & resp[2];
+        report->pivalid         = 0x08 & resp[2];
+        report->rdssync         = 0x02 & resp[2];
+        report->rdsfifolost     = 0x01 & resp[2];
 
-        report->tp              = 0b00100000 & resp[3];
-        report->pty             = 0b00011111 & resp[3];
+        report->tp              = 0x20 & resp[3];
+        report->pty             = 0x1f & resp[3];
 
-        report->pi              = be16_to_cpup((__be16 *)(resp + 4));
+        report->pi              = get_unaligned_be16(resp + 4);
         report->rdsfifoused     = resp[6];
 
-        report->ble[V4L2_RDS_BLOCK_A]   = 0b11000000 & resp[7];
-        report->ble[V4L2_RDS_BLOCK_B]   = 0b00110000 & resp[7];
-        report->ble[V4L2_RDS_BLOCK_C]   = 0b00001100 & resp[7];
-        report->ble[V4L2_RDS_BLOCK_D]   = 0b00000011 & resp[7];
+        report->ble[V4L2_RDS_BLOCK_A]   = 0xc0 & resp[7];
+        report->ble[V4L2_RDS_BLOCK_B]   = 0x30 & resp[7];
+        report->ble[V4L2_RDS_BLOCK_C]   = 0x0c & resp[7];
+        report->ble[V4L2_RDS_BLOCK_D]   = 0x03 & resp[7];
 
         report->rds[V4L2_RDS_BLOCK_A].block = V4L2_RDS_BLOCK_A;
         report->rds[V4L2_RDS_BLOCK_A].msb = resp[8];
@@ -991,9 +993,9 @@ int si476x_core_cmd_fm_rds_blockcount(struct si476x_core *core,
                                        SI476X_DEFAULT_TIMEOUT);
 
         if (!err) {
-                report->expected        = be16_to_cpup((__be16 *)(resp + 2));
-                report->received        = be16_to_cpup((__be16 *)(resp + 4));
-                report->uncorrectable   = be16_to_cpup((__be16 *)(resp + 6));
+                report->expected        = get_unaligned_be16(resp + 2);
+                report->received        = get_unaligned_be16(resp + 4);
+                report->uncorrectable   = get_unaligned_be16(resp + 6);
         }
 
         return err;
@@ -1005,7 +1007,7 @@ int si476x_core_cmd_fm_phase_diversity(struct si476x_core *core,
 {
         u8       resp[CMD_FM_PHASE_DIVERSITY_NRESP];
         const u8 args[CMD_FM_PHASE_DIVERSITY_NARGS] = {
-                mode & 0b111,
+                mode & 0x07,
         };
 
         return si476x_core_send_command(core, CMD_FM_PHASE_DIVERSITY,
@@ -1162,7 +1164,7 @@ static int si476x_core_cmd_am_tune_freq_a20(struct si476x_core *core,
         const int am_freq = tuneargs->freq;
         u8       resp[CMD_AM_TUNE_FREQ_NRESP];
         const u8 args[CMD_AM_TUNE_FREQ_NARGS] = {
-                (tuneargs->zifsr << 6) | (tuneargs->injside & 0b11),
+                (tuneargs->zifsr << 6) | (tuneargs->injside & 0x03),
                 msb(am_freq),
                 lsb(am_freq),
         };
@@ -1197,20 +1199,20 @@ static int si476x_core_cmd_fm_rsq_status_a10(struct si476x_core *core,
         if (err < 0 || report == NULL)
                 return err;
 
-        report->multhint        = 0b10000000 & resp[1];
-        report->multlint        = 0b01000000 & resp[1];
-        report->snrhint         = 0b00001000 & resp[1];
-        report->snrlint         = 0b00000100 & resp[1];
-        report->rssihint        = 0b00000010 & resp[1];
-        report->rssilint        = 0b00000001 & resp[1];
+        report->multhint        = 0x80 & resp[1];
+        report->multlint        = 0x40 & resp[1];
+        report->snrhint         = 0x08 & resp[1];
+        report->snrlint         = 0x04 & resp[1];
+        report->rssihint        = 0x02 & resp[1];
+        report->rssilint        = 0x01 & resp[1];
 
-        report->bltf            = 0b10000000 & resp[2];
-        report->snr_ready       = 0b00100000 & resp[2];
-        report->rssiready       = 0b00001000 & resp[2];
-        report->afcrl           = 0b00000010 & resp[2];
-        report->valid           = 0b00000001 & resp[2];
+        report->bltf            = 0x80 & resp[2];
+        report->snr_ready       = 0x20 & resp[2];
+        report->rssiready       = 0x08 & resp[2];
+        report->afcrl           = 0x02 & resp[2];
+        report->valid           = 0x01 & resp[2];
 
-        report->readfreq        = be16_to_cpup((__be16 *)(resp + 3));
+        report->readfreq        = get_unaligned_be16(resp + 3);
         report->freqoff         = resp[5];
         report->rssi            = resp[6];
         report->snr             = resp[7];
@@ -1218,7 +1220,7 @@ static int si476x_core_cmd_fm_rsq_status_a10(struct si476x_core *core,
         report->hassi           = resp[10];
         report->mult            = resp[11];
         report->dev             = resp[12];
-        report->readantcap      = be16_to_cpup((__be16 *)(resp + 13));
+        report->readantcap      = get_unaligned_be16(resp + 13);
         report->assi            = resp[15];
         report->usn             = resp[16];
 
@@ -1251,20 +1253,20 @@ static int si476x_core_cmd_fm_rsq_status_a20(struct si476x_core *core,
         if (err < 0 || report == NULL)
                 return err;
 
-        report->multhint        = 0b10000000 & resp[1];
-        report->multlint        = 0b01000000 & resp[1];
-        report->snrhint         = 0b00001000 & resp[1];
-        report->snrlint         = 0b00000100 & resp[1];
-        report->rssihint        = 0b00000010 & resp[1];
-        report->rssilint        = 0b00000001 & resp[1];
+        report->multhint        = 0x80 & resp[1];
+        report->multlint        = 0x40 & resp[1];
+        report->snrhint         = 0x08 & resp[1];
+        report->snrlint         = 0x04 & resp[1];
+        report->rssihint        = 0x02 & resp[1];
+        report->rssilint        = 0x01 & resp[1];
 
-        report->bltf            = 0b10000000 & resp[2];
-        report->snr_ready       = 0b00100000 & resp[2];
-        report->rssiready       = 0b00001000 & resp[2];
-        report->afcrl           = 0b00000010 & resp[2];
-        report->valid           = 0b00000001 & resp[2];
+        report->bltf            = 0x80 & resp[2];
+        report->snr_ready       = 0x20 & resp[2];
+        report->rssiready       = 0x08 & resp[2];
+        report->afcrl           = 0x02 & resp[2];
+        report->valid           = 0x01 & resp[2];
 
-        report->readfreq        = be16_to_cpup((__be16 *)(resp + 3));
+        report->readfreq        = get_unaligned_be16(resp + 3);
         report->freqoff         = resp[5];
         report->rssi            = resp[6];
         report->snr             = resp[7];
@@ -1272,7 +1274,7 @@ static int si476x_core_cmd_fm_rsq_status_a20(struct si476x_core *core,
         report->hassi           = resp[10];
         report->mult            = resp[11];
         report->dev             = resp[12];
-        report->readantcap      = be16_to_cpup((__be16 *)(resp + 13));
+        report->readantcap      = get_unaligned_be16(resp + 13);
         report->assi            = resp[15];
         report->usn             = resp[16];
 
@@ -1306,21 +1308,21 @@ static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core,
         if (err < 0 || report == NULL)
                 return err;
 
-        report->multhint        = 0b10000000 & resp[1];
-        report->multlint        = 0b01000000 & resp[1];
-        report->snrhint         = 0b00001000 & resp[1];
-        report->snrlint         = 0b00000100 & resp[1];
-        report->rssihint        = 0b00000010 & resp[1];
-        report->rssilint        = 0b00000001 & resp[1];
-
-        report->bltf            = 0b10000000 & resp[2];
-        report->snr_ready       = 0b00100000 & resp[2];
-        report->rssiready       = 0b00001000 & resp[2];
-        report->injside         = 0b00000100 & resp[2];
-        report->afcrl           = 0b00000010 & resp[2];
-        report->valid           = 0b00000001 & resp[2];
-
-        report->readfreq        = be16_to_cpup((__be16 *)(resp + 3));
+        report->multhint        = 0x80 & resp[1];
+        report->multlint        = 0x40 & resp[1];
+        report->snrhint         = 0x08 & resp[1];
+        report->snrlint         = 0x04 & resp[1];
+        report->rssihint        = 0x02 & resp[1];
+        report->rssilint        = 0x01 & resp[1];
+
+        report->bltf            = 0x80 & resp[2];
+        report->snr_ready       = 0x20 & resp[2];
+        report->rssiready       = 0x08 & resp[2];
+        report->injside         = 0x04 & resp[2];
+        report->afcrl           = 0x02 & resp[2];
+        report->valid           = 0x01 & resp[2];
+
+        report->readfreq        = get_unaligned_be16(resp + 3);
         report->freqoff         = resp[5];
         report->rssi            = resp[6];
         report->snr             = resp[7];
@@ -1329,7 +1331,7 @@ static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core,
         report->hassi           = resp[10];
         report->mult            = resp[11];
         report->dev             = resp[12];
-        report->readantcap      = be16_to_cpup((__be16 *)(resp + 13));
+        report->readantcap      = get_unaligned_be16(resp + 13);
         report->assi            = resp[15];
         report->usn             = resp[16];
 
@@ -1337,7 +1339,7 @@ static int si476x_core_cmd_fm_rsq_status_a30(struct si476x_core *core,
         report->rdsdev          = resp[18];
         report->assidev         = resp[19];
         report->strongdev       = resp[20];
-        report->rdspi           = be16_to_cpup((__be16 *)(resp + 21));
+        report->rdspi           = get_unaligned_be16(resp + 21);
 
         return err;
 }
diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index c09c28f92055..1abd5ad59925 100644
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -154,11 +154,6 @@ static int ssc_probe(struct platform_device *pdev)
         ssc->pdata = (struct atmel_ssc_platform_data *)plat_dat;
 
         regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!regs) {
-                dev_dbg(&pdev->dev, "no mmio resource defined\n");
-                return -ENXIO;
-        }
-
         ssc->regs = devm_ioremap_resource(&pdev->dev, regs);
         if (IS_ERR(ssc->regs))
                 return PTR_ERR(ssc->regs);
diff --git a/drivers/misc/dummy-irq.c b/drivers/misc/dummy-irq.c
index 7014167e2c61..c37eeedfe215 100644
--- a/drivers/misc/dummy-irq.c
+++ b/drivers/misc/dummy-irq.c
@@ -19,7 +19,7 @@
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 
-static int irq;
+static int irq = -1;
 
 static irqreturn_t dummy_interrupt(int irq, void *dev_id)
 {
@@ -36,6 +36,10 @@ static irqreturn_t dummy_interrupt(int irq, void *dev_id)
 
 static int __init dummy_irq_init(void)
 {
+        if (irq < 0) {
+                printk(KERN_ERR "dummy-irq: no IRQ given.  Use irq=N\n");
+                return -EIO;
+        }
         if (request_irq(irq, &dummy_interrupt, IRQF_SHARED, "dummy_irq", &irq)) {
                 printk(KERN_ERR "dummy-irq: cannot register IRQ %d\n", irq);
                 return -EIO;
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 1e935eacaa7f..9ecd49a7be1b 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -496,6 +496,8 @@ int mei_cl_disable_device(struct mei_cl_device *device)
                 }
         }
 
+        device->event_cb = NULL;
+
         mutex_unlock(&dev->device_lock);
 
         if (!device->ops || !device->ops->disable)
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 7c44c8dbae42..053139f61086 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -489,11 +489,16 @@ static int mei_ioctl_connect_client(struct file *file,
 
         /* find ME client we're trying to connect to */
         i = mei_me_cl_by_uuid(dev, &data->in_client_uuid);
-        if (i >= 0 && !dev->me_clients[i].props.fixed_address) {
-                cl->me_client_id = dev->me_clients[i].client_id;
-                cl->state = MEI_FILE_CONNECTING;
+        if (i < 0 || dev->me_clients[i].props.fixed_address) {
+                dev_dbg(&dev->pdev->dev, "Cannot connect to FW Client UUID = %pUl\n",
+                                &data->in_client_uuid);
+                rets = -ENODEV;
+                goto end;
         }
 
+        cl->me_client_id = dev->me_clients[i].client_id;
+        cl->state = MEI_FILE_CONNECTING;
+
         dev_dbg(&dev->pdev->dev, "Connect to FW Client ID = %d\n",
                         cl->me_client_id);
         dev_dbg(&dev->pdev->dev, "FW Client - Protocol Version = %d\n",
@@ -527,11 +532,6 @@ static int mei_ioctl_connect_client(struct file *file,
                 goto end;
         }
 
-        if (cl->state != MEI_FILE_CONNECTING) {
-                rets = -ENODEV;
-                goto end;
-        }
-
 
         /* prepare the output buffer */
         client = &data->out_client_properties;
@@ -543,7 +543,6 @@ static int mei_ioctl_connect_client(struct file *file,
         rets = mei_cl_connect(cl, file);
 
 end:
-        dev_dbg(&dev->pdev->dev, "free connect cb memory.");
         return rets;
 }
 
diff --git a/drivers/misc/vmw_vmci/Kconfig b/drivers/misc/vmw_vmci/Kconfig
index ea98f7e9ccd1..39c2ecadb273 100644
--- a/drivers/misc/vmw_vmci/Kconfig
+++ b/drivers/misc/vmw_vmci/Kconfig
@@ -4,7 +4,7 @@
 
 config VMWARE_VMCI
         tristate "VMware VMCI Driver"
-        depends on X86 && PCI && NET
+        depends on X86 && PCI
         help
           This is VMware's Virtual Machine Communication Interface.  It enables
           high-speed communication between host and guest in a virtual
diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c
index d94245dbd765..8ff2e5ee8fb8 100644
--- a/drivers/misc/vmw_vmci/vmci_queue_pair.c
+++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c
@@ -23,7 +23,7 @@
 #include <linux/pagemap.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/socket.h>
+#include <linux/uio.h>
 #include <linux/wait.h>
 #include <linux/vmalloc.h>
 
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 375c109607ff..f4f3038c1df0 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1130,6 +1130,7 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
         struct variant_data *variant = host->variant;
         u32 pwr = 0;
         unsigned long flags;
+        int ret;
 
         pm_runtime_get_sync(mmc_dev(mmc));
 
@@ -1161,8 +1162,12 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                 break;
         case MMC_POWER_ON:
                 if (!IS_ERR(mmc->supply.vqmmc) &&
-                    !regulator_is_enabled(mmc->supply.vqmmc))
-                        regulator_enable(mmc->supply.vqmmc);
+                    !regulator_is_enabled(mmc->supply.vqmmc)) {
+                        ret = regulator_enable(mmc->supply.vqmmc);
+                        if (ret < 0)
+                                dev_err(mmc_dev(mmc),
+                                        "failed to enable vqmmc regulator\n");
+                }
 
                 pwr |= MCI_PWR_ON;
                 break;
diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c
index a94facb46e5c..fd1df5e13ae4 100644
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -672,11 +672,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
         }
 
         rc = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (rc == NULL) {
-                dev_err(&pdev->dev, "No memory resource found for device!\r\n");
-                return -ENXIO;
-        }
-
         host->io_base = devm_ioremap_resource(&pdev->dev, rc);
         if (IS_ERR(host->io_base))
                 return PTR_ERR(host->io_base);
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index fc58d118d844..390061d09693 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2360,14 +2360,15 @@ int bond_3ad_set_carrier(struct bonding *bond)
 }
 
 /**
- * bond_3ad_get_active_agg_info - get information of the active aggregator
+ * __bond_3ad_get_active_agg_info - get information of the active aggregator
  * @bond: bonding struct to work on
  * @ad_info: ad_info struct to fill with the bond's info
  *
  * Returns:   0 on success
  *          < 0 on error
  */
-int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info)
+int __bond_3ad_get_active_agg_info(struct bonding *bond,
+                                   struct ad_info *ad_info)
 {
         struct aggregator *aggregator = NULL;
         struct port *port;
@@ -2391,6 +2392,18 @@ int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info)
         return -1;
 }
 
+/* Wrapper used to hold bond->lock so no slave manipulation can occur */
+int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info)
+{
+        int ret;
+
+        read_lock(&bond->lock);
+        ret = __bond_3ad_get_active_agg_info(bond, ad_info);
+        read_unlock(&bond->lock);
+
+        return ret;
+}
+
 int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 {
         struct slave *slave, *start_at;
@@ -2402,8 +2415,8 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
         struct ad_info ad_info;
         int res = 1;
 
-        if (bond_3ad_get_active_agg_info(bond, &ad_info)) {
-                pr_debug("%s: Error: bond_3ad_get_active_agg_info failed\n",
+        if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
+                pr_debug("%s: Error: __bond_3ad_get_active_agg_info failed\n",
                          dev->name);
                 goto out;
         }
diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h
index 0cfaa4afdece..5d91ad0cc041 100644
--- a/drivers/net/bonding/bond_3ad.h
+++ b/drivers/net/bonding/bond_3ad.h
@@ -273,6 +273,8 @@ void bond_3ad_adapter_speed_changed(struct slave *slave);
 void bond_3ad_adapter_duplex_changed(struct slave *slave);
 void bond_3ad_handle_link_change(struct slave *slave, char link);
 int  bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info);
+int  __bond_3ad_get_active_agg_info(struct bonding *bond,
+                                    struct ad_info *ad_info);
 int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev);
 int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond,
                          struct slave *slave);
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d0aade04e49a..29b846cbfb48 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1362,6 +1362,7 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
                                                      slave->dev->features,
                                                      mask);
         }
+        features = netdev_add_tso_features(features, mask);
 
 out:
         read_unlock(&bond->lock);
@@ -2555,8 +2556,8 @@ static void bond_arp_send(struct net_device *slave_dev, int arp_op, __be32 dest_
 {
         struct sk_buff *skb;
 
-        pr_debug("arp %d on slave %s: dst %x src %x vid %d\n", arp_op,
-                 slave_dev->name, dest_ip, src_ip, vlan_id);
+        pr_debug("arp %d on slave %s: dst %pI4 src %pI4 vid %d\n", arp_op,
+                 slave_dev->name, &dest_ip, &src_ip, vlan_id);
 
         skb = arp_create(arp_op, ETH_P_ARP, dest_ip, slave_dev, src_ip,
                          NULL, slave_dev->dev_addr, NULL);
@@ -2588,7 +2589,7 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave)
                 __be32 addr;
                 if (!targets[i])
                         break;
-                pr_debug("basa: target %x\n", targets[i]);
+                pr_debug("basa: target %pI4\n", &targets[i]);
                 if (!bond_vlan_used(bond)) {
                         pr_debug("basa: empty vlan: arp_send\n");
                         addr = bond_confirm_addr(bond->dev, targets[i], 0);
@@ -4470,7 +4471,7 @@ int bond_parse_parm(const char *buf, const struct bond_parm_tbl *tbl)
 
 static int bond_check_params(struct bond_params *params)
 {
-        int arp_validate_value, fail_over_mac_value, primary_reselect_value;
+        int arp_validate_value, fail_over_mac_value, primary_reselect_value, i;
 
         /*
          * Convert string parameters.
@@ -4650,19 +4651,18 @@ static int bond_check_params(struct bond_params *params)
                 arp_interval = BOND_LINK_ARP_INTERV;
         }
 
-        for (arp_ip_count = 0;
-             (arp_ip_count < BOND_MAX_ARP_TARGETS) && arp_ip_target[arp_ip_count];
-             arp_ip_count++) {
+        for (arp_ip_count = 0, i = 0;
+             (arp_ip_count < BOND_MAX_ARP_TARGETS) && arp_ip_target[i]; i++) {
                 /* not complete check, but should be good enough to
                    catch mistakes */
-                __be32 ip = in_aton(arp_ip_target[arp_ip_count]);
-                if (!isdigit(arp_ip_target[arp_ip_count][0]) ||
-                    ip == 0 || ip == htonl(INADDR_BROADCAST)) {
+                __be32 ip = in_aton(arp_ip_target[i]);
+                if (!isdigit(arp_ip_target[i][0]) || ip == 0 ||
+                    ip == htonl(INADDR_BROADCAST)) {
                         pr_warning("Warning: bad arp_ip_target module parameter (%s), ARP monitoring will not be performed\n",
-                                   arp_ip_target[arp_ip_count]);
+                                   arp_ip_target[i]);
                         arp_interval = 0;
                 } else {
-                        arp_target[arp_ip_count] = ip;
+                        arp_target[arp_ip_count++] = ip;
                 }
         }
 
@@ -4696,8 +4696,6 @@ static int bond_check_params(struct bond_params *params)
         if (miimon) {
                 pr_info("MII link monitoring set to %d ms\n", miimon);
         } else if (arp_interval) {
-                int i;
-
                 pr_info("ARP monitoring set to %d ms, validate %s, with %d target(s):",
                         arp_interval,
                         arp_validate_tbl[arp_validate_value].modename,
diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index 94d06f1307b8..4060d41f0ee7 100644
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -130,7 +130,7 @@ static void bond_info_show_master(struct seq_file *seq)
                 seq_printf(seq, "Aggregator selection policy (ad_select): %s\n",
                            ad_select_tbl[bond->params.ad_select].modename);
 
-                if (bond_3ad_get_active_agg_info(bond, &ad_info)) {
+                if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
                         seq_printf(seq, "bond %s has no active aggregator\n",
                                    bond->dev->name);
                 } else {
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index ea7a388f4843..d7434e0a610e 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -316,6 +316,9 @@ static ssize_t bonding_store_mode(struct device *d,
         int new_value, ret = count;
         struct bonding *bond = to_bond(d);
 
+        if (!rtnl_trylock())
+                return restart_syscall();
+
         if (bond->dev->flags & IFF_UP) {
                 pr_err("unable to update mode of %s because interface is up.\n",
                        bond->dev->name);
@@ -352,6 +355,7 @@ static ssize_t bonding_store_mode(struct device *d,
                 bond->dev->name, bond_mode_tbl[new_value].modename,
                 new_value);
 out:
+        rtnl_unlock();
         return ret;
 }
 static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
@@ -1315,7 +1319,6 @@ static ssize_t bonding_show_mii_status(struct device *d,
 }
 static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL);
 
-
 /*
  * Show current 802.3ad aggregator ID.
  */
@@ -1329,7 +1332,7 @@ static ssize_t bonding_show_ad_aggregator(struct device *d,
         if (bond->params.mode == BOND_MODE_8023AD) {
                 struct ad_info ad_info;
                 count = sprintf(buf, "%d\n",
-                                (bond_3ad_get_active_agg_info(bond, &ad_info))
+                                bond_3ad_get_active_agg_info(bond, &ad_info)
                                 ?  0 : ad_info.aggregator_id);
         }
 
@@ -1351,7 +1354,7 @@ static ssize_t bonding_show_ad_num_ports(struct device *d,
         if (bond->params.mode == BOND_MODE_8023AD) {
                 struct ad_info ad_info;
                 count = sprintf(buf, "%d\n",
-                                (bond_3ad_get_active_agg_info(bond, &ad_info))
+                                bond_3ad_get_active_agg_info(bond, &ad_info)
                                 ?  0 : ad_info.ports);
         }
 
@@ -1373,7 +1376,7 @@ static ssize_t bonding_show_ad_actor_key(struct device *d,
         if (bond->params.mode == BOND_MODE_8023AD) {
                 struct ad_info ad_info;
                 count = sprintf(buf, "%d\n",
-                                (bond_3ad_get_active_agg_info(bond, &ad_info))
+                                bond_3ad_get_active_agg_info(bond, &ad_info)
                                 ?  0 : ad_info.actor_key);
         }
 
@@ -1395,7 +1398,7 @@ static ssize_t bonding_show_ad_partner_key(struct device *d,
         if (bond->params.mode == BOND_MODE_8023AD) {
                 struct ad_info ad_info;
                 count = sprintf(buf, "%d\n",
-                                (bond_3ad_get_active_agg_info(bond, &ad_info))
+                                bond_3ad_get_active_agg_info(bond, &ad_info)
                                 ?  0 : ad_info.partner_key);
         }
 
diff --git a/drivers/net/caif/Kconfig b/drivers/net/caif/Kconfig
index 7ffc756131a2..547098086773 100644
--- a/drivers/net/caif/Kconfig
+++ b/drivers/net/caif/Kconfig
@@ -43,7 +43,7 @@ config CAIF_HSI
 
 config CAIF_VIRTIO
         tristate "CAIF virtio transport driver"
-        depends on CAIF
+        depends on CAIF && HAS_DMA
         select VHOST_RING
         select VIRTIO
         select GENERIC_ALLOCATOR
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index de570a8f8967..072c6f14e8fc 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -632,7 +632,6 @@ struct vortex_private {
                 pm_state_valid:1,                               /* pci_dev->saved_config_space has sane contents */
                 open:1,
                 medialock:1,
-                must_free_region:1,                             /* Flag: if zero, Cardbus owns the I/O region */
                 large_frames:1,                 /* accept large frames */
                 handling_irq:1;                 /* private in_irq indicator */
         /* {get|set}_wol operations are already serialized by rtnl.
@@ -1012,6 +1011,12 @@ static int vortex_init_one(struct pci_dev *pdev,
         if (rc < 0)
                 goto out;
 
+        rc = pci_request_regions(pdev, DRV_NAME);
+        if (rc < 0) {
+                pci_disable_device(pdev);
+                goto out;
+        }
+
         unit = vortex_cards_found;
 
         if (global_use_mmio < 0 && (unit >= MAX_UNITS || use_mmio[unit] < 0)) {
@@ -1027,6 +1032,7 @@ static int vortex_init_one(struct pci_dev *pdev,
         if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */
                 ioaddr = pci_iomap(pdev, 0, 0);
         if (!ioaddr) {
+                pci_release_regions(pdev);
                 pci_disable_device(pdev);
                 rc = -ENOMEM;
                 goto out;
@@ -1036,6 +1042,7 @@ static int vortex_init_one(struct pci_dev *pdev,
                            ent->driver_data, unit);
         if (rc < 0) {
                 pci_iounmap(pdev, ioaddr);
+                pci_release_regions(pdev);
                 pci_disable_device(pdev);
                 goto out;
         }
@@ -1178,11 +1185,6 @@ static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
 
         /* PCI-only startup logic */
         if (pdev) {
-                /* EISA resources already marked, so only PCI needs to do this here */
-                /* Ignore return value, because Cardbus drivers already allocate for us */
-                if (request_region(dev->base_addr, vci->io_size, print_name) != NULL)
-                        vp->must_free_region = 1;
-
                 /* enable bus-mastering if necessary */
                 if (vci->flags & PCI_USES_MASTER)
                         pci_set_master(pdev);
@@ -1220,7 +1222,7 @@ static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
                                            &vp->rx_ring_dma);
         retval = -ENOMEM;
         if (!vp->rx_ring)
-                goto free_region;
+                goto free_device;
 
         vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE);
         vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE;
@@ -1484,9 +1486,7 @@ free_ring:
                                                         + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
                                                 vp->rx_ring,
                                                 vp->rx_ring_dma);
-free_region:
-        if (vp->must_free_region)
-                release_region(dev->base_addr, vci->io_size);
+free_device:
         free_netdev(dev);
         pr_err(PFX "vortex_probe1 fails.  Returns %d\n", retval);
 out:
@@ -3254,8 +3254,9 @@ static void vortex_remove_one(struct pci_dev *pdev)
                                                         + sizeof(struct boom_tx_desc) * TX_RING_SIZE,
                                                 vp->rx_ring,
                                                 vp->rx_ring_dma);
-        if (vp->must_free_region)
-                release_region(dev->base_addr, vp->io_size);
+
+        pci_release_regions(pdev);
+
         free_netdev(dev);
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index b8fbe266ab68..be59ec4b2c30 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -3313,6 +3313,7 @@ static void bnx2x_set_pbd_gso_e2(struct sk_buff *skb, u32 *parsing_data,
  */
 static void bnx2x_set_pbd_gso(struct sk_buff *skb,
                               struct eth_tx_parse_bd_e1x *pbd,
+                              struct eth_tx_start_bd *tx_start_bd,
                               u32 xmit_type)
 {
         pbd->lso_mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
@@ -3326,11 +3327,14 @@ static void bnx2x_set_pbd_gso(struct sk_buff *skb,
                                                    ip_hdr(skb)->daddr,
                                                    0, IPPROTO_TCP, 0));
 
-        } else
+                /* GSO on 57710/57711 needs FW to calculate IP checksum */
+                tx_start_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_IP_CSUM;
+        } else {
                 pbd->tcp_pseudo_csum =
                         bswab16(~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
                                                  &ipv6_hdr(skb)->daddr,
                                                  0, IPPROTO_TCP, 0));
+        }
 
         pbd->global_data |=
                 cpu_to_le16(ETH_TX_PARSE_BD_E1X_PSEUDO_CS_WITHOUT_LEN);
@@ -3814,7 +3818,8 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
                         bnx2x_set_pbd_gso_e2(skb, &pbd_e2_parsing_data,
                                              xmit_type);
                 else
-                        bnx2x_set_pbd_gso(skb, pbd_e1x, xmit_type);
+                        bnx2x_set_pbd_gso(skb, pbd_e1x, tx_start_bd,
+                                          xmit_type);
         }
 
         /* Set the PBD's parsing_data field if not zero
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 728d42ab2a76..1f2dd928888a 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -94,10 +94,10 @@ static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
 
 #define DRV_MODULE_NAME         "tg3"
 #define TG3_MAJ_NUM                     3
-#define TG3_MIN_NUM                     131
+#define TG3_MIN_NUM                     132
 #define DRV_MODULE_VERSION      \
         __stringify(TG3_MAJ_NUM) "." __stringify(TG3_MIN_NUM)
-#define DRV_MODULE_RELDATE      "April 09, 2013"
+#define DRV_MODULE_RELDATE      "May 21, 2013"
 
 #define RESET_KIND_SHUTDOWN     0
 #define RESET_KIND_INIT         1
@@ -2957,6 +2957,31 @@ static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
         return 0;
 }
 
+static bool tg3_phy_power_bug(struct tg3 *tp)
+{
+        switch (tg3_asic_rev(tp)) {
+        case ASIC_REV_5700:
+        case ASIC_REV_5704:
+                return true;
+        case ASIC_REV_5780:
+                if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
+                        return true;
+                return false;
+        case ASIC_REV_5717:
+                if (!tp->pci_fn)
+                        return true;
+                return false;
+        case ASIC_REV_5719:
+        case ASIC_REV_5720:
+                if ((tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
+                    !tp->pci_fn)
+                        return true;
+                return false;
+        }
+
+        return false;
+}
+
 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
 {
         u32 val;
@@ -3016,12 +3041,7 @@ static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
         /* The PHY should not be powered down on some chips because
          * of bugs.
          */
-        if (tg3_asic_rev(tp) == ASIC_REV_5700 ||
-            tg3_asic_rev(tp) == ASIC_REV_5704 ||
-            (tg3_asic_rev(tp) == ASIC_REV_5780 &&
-             (tp->phy_flags & TG3_PHYFLG_MII_SERDES)) ||
-            (tg3_asic_rev(tp) == ASIC_REV_5717 &&
-             !tp->pci_fn))
+        if (tg3_phy_power_bug(tp))
                 return;
 
         if (tg3_chip_rev(tp) == CHIPREV_5784_AX ||
@@ -7428,6 +7448,20 @@ static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
         return (base > 0xffffdcc0) && (base + len + 8 < base);
 }
 
+/* Test for TSO DMA buffers that cross into regions which are within MSS bytes
+ * of any 4GB boundaries: 4G, 8G, etc
+ */
+static inline int tg3_4g_tso_overflow_test(struct tg3 *tp, dma_addr_t mapping,
+                                           u32 len, u32 mss)
+{
+        if (tg3_asic_rev(tp) == ASIC_REV_5762 && mss) {
+                u32 base = (u32) mapping & 0xffffffff;
+
+                return ((base + len + (mss & 0x3fff)) < base);
+        }
+        return 0;
+}
+
 /* Test for DMA addresses > 40-bit */
 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
                                           int len)
@@ -7464,6 +7498,9 @@ static bool tg3_tx_frag_set(struct tg3_napi *tnapi, u32 *entry, u32 *budget,
         if (tg3_4g_overflow_test(map, len))
                 hwbug = true;
 
+        if (tg3_4g_tso_overflow_test(tp, map, len, mss))
+                hwbug = true;
+
         if (tg3_40bit_overflow_test(tp, map, len))
                 hwbug = true;
 
@@ -8874,6 +8911,10 @@ static int tg3_chip_reset(struct tg3 *tp)
                 tg3_halt_cpu(tp, RX_CPU_BASE);
         }
 
+        err = tg3_poll_fw(tp);
+        if (err)
+                return err;
+
         tw32(GRC_MODE, tp->grc_mode);
 
         if (tg3_chip_rev_id(tp) == CHIPREV_ID_5705_A0) {
@@ -8904,10 +8945,6 @@ static int tg3_chip_reset(struct tg3 *tp)
 
         tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
 
-        err = tg3_poll_fw(tp);
-        if (err)
-                return err;
-
         tg3_mdio_start(tp);
 
         if (tg3_flag(tp, PCI_EXPRESS) &&
diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
index ce4a030d3d0c..07f7ef05c3f2 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.c
+++ b/drivers/net/ethernet/brocade/bna/bnad.c
@@ -3236,9 +3236,10 @@ bnad_init(struct bnad *bnad,
 
         sprintf(bnad->wq_name, "%s_wq_%d", BNAD_NAME, bnad->id);
         bnad->work_q = create_singlethread_workqueue(bnad->wq_name);
-
-        if (!bnad->work_q)
+        if (!bnad->work_q) {
+                iounmap(bnad->bar0);
                 return -ENOMEM;
+        }
 
         return 0;
 }
diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig
index 1194446f859a..768285ec10f4 100644
--- a/drivers/net/ethernet/cadence/Kconfig
+++ b/drivers/net/ethernet/cadence/Kconfig
@@ -22,7 +22,7 @@ if NET_CADENCE
 
 config ARM_AT91_ETHER
         tristate "AT91RM9200 Ethernet support"
-        depends on GENERIC_HARDIRQS
+        depends on GENERIC_HARDIRQS && HAS_DMA
         select NET_CORE
         select MACB
         ---help---
@@ -31,6 +31,7 @@ config ARM_AT91_ETHER
 
 config MACB
         tristate "Cadence MACB/GEM support"
+        depends on HAS_DMA
         select PHYLIB
         ---help---
           The Cadence MACB ethernet interface is found on many Atmel AT32 and
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 6be513deb17f..c89aa41dd448 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -485,7 +485,8 @@ static void macb_tx_interrupt(struct macb *bp)
         status = macb_readl(bp, TSR);
         macb_writel(bp, TSR, status);
 
-        macb_writel(bp, ISR, MACB_BIT(TCOMP));
+        if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
+                macb_writel(bp, ISR, MACB_BIT(TCOMP));
 
         netdev_vdbg(bp->dev, "macb_tx_interrupt status = 0x%03lx\n",
                 (unsigned long)status);
@@ -738,7 +739,8 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id)
                          * now.
                          */
                         macb_writel(bp, IDR, MACB_RX_INT_FLAGS);
-                        macb_writel(bp, ISR, MACB_BIT(RCOMP));
+                        if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
+                                macb_writel(bp, ISR, MACB_BIT(RCOMP));
 
                         if (napi_schedule_prep(&bp->napi)) {
                                 netdev_vdbg(bp->dev, "scheduling RX softirq\n");
@@ -1062,6 +1064,17 @@ static void macb_configure_dma(struct macb *bp)
         }
 }
 
+/*
+ * Configure peripheral capacities according to integration options used
+ */
+static void macb_configure_caps(struct macb *bp)
+{
+        if (macb_is_gem(bp)) {
+                if (GEM_BF(IRQCOR, gem_readl(bp, DCFG1)) == 0)
+                        bp->caps |= MACB_CAPS_ISR_CLEAR_ON_WRITE;
+        }
+}
+
 static void macb_init_hw(struct macb *bp)
 {
         u32 config;
@@ -1084,6 +1097,7 @@ static void macb_init_hw(struct macb *bp)
         bp->duplex = DUPLEX_HALF;
 
         macb_configure_dma(bp);
+        macb_configure_caps(bp);
 
         /* Initialize TX and RX buffers */
         macb_writel(bp, RBQP, bp->rx_ring_dma);
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index 993d70380688..548c0ecae869 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -300,6 +300,8 @@
 #define MACB_REV_SIZE                           16
 
 /* Bitfields in DCFG1. */
+#define GEM_IRQCOR_OFFSET                       23
+#define GEM_IRQCOR_SIZE                         1
 #define GEM_DBWDEF_OFFSET                       25
 #define GEM_DBWDEF_SIZE                         3
 
@@ -323,6 +325,9 @@
 #define MACB_MAN_READ                           2
 #define MACB_MAN_CODE                           2
 
+/* Capability mask bits */
+#define MACB_CAPS_ISR_CLEAR_ON_WRITE            0x1
+
 /* Bit manipulation macros */
 #define MACB_BIT(name)                                  \
         (1 << MACB_##name##_OFFSET)
@@ -574,6 +579,8 @@ struct macb {
         unsigned int            speed;
         unsigned int            duplex;
 
+        u32                     caps;
+
         phy_interface_t         phy_interface;
 
         /* AT91RM9200 transmit */
diff --git a/drivers/net/ethernet/calxeda/Kconfig b/drivers/net/ethernet/calxeda/Kconfig
index aba435c3d4ae..184a063bed5f 100644
--- a/drivers/net/ethernet/calxeda/Kconfig
+++ b/drivers/net/ethernet/calxeda/Kconfig
@@ -1,6 +1,6 @@
 config NET_CALXEDA_XGMAC
         tristate "Calxeda 1G/10G XGMAC Ethernet driver"
-        depends on HAS_IOMEM
+        depends on HAS_IOMEM && HAS_DMA
         select CRC32
         help
           This is the driver for the XGMAC Ethernet IP block found on Calxeda
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index fd7b547698ab..a236ecd27cf3 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -2976,22 +2976,17 @@ static struct be_nic_resource_desc *be_get_nic_desc(u8 *buf, u32 desc_count,
         for (i = 0; i < desc_count; i++) {
                 desc->desc_len = desc->desc_len ? : RESOURCE_DESC_SIZE;
                 if (((void *)desc + desc->desc_len) >
-                    (void *)(buf + max_buf_size)) {
-                        desc = NULL;
-                        break;
-                }
+                    (void *)(buf + max_buf_size))
+                        return NULL;
 
                 if (desc->desc_type == NIC_RESOURCE_DESC_TYPE_V0 ||
                     desc->desc_type == NIC_RESOURCE_DESC_TYPE_V1)
-                        break;
+                        return desc;
 
                 desc = (void *)desc + desc->desc_len;
         }
 
-        if (!desc || i == MAX_RESOURCE_DESC)
-                return NULL;
-
-        return desc;
+        return NULL;
 }
 
 /* Uses Mbox */
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index a444110b060f..ca2967b0f18b 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -780,26 +780,18 @@ static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
         if (unlikely(!skb))
                 return skb;
 
-        if (vlan_tx_tag_present(skb)) {
+        if (vlan_tx_tag_present(skb))
                 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
-                skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
-                if (skb)
-                        skb->vlan_tci = 0;
-        }
-
-        if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
-                if (!vlan_tag)
-                        vlan_tag = adapter->pvid;
-                if (skip_hw_vlan)
-                        *skip_hw_vlan = true;
-        }
+        else if (qnq_async_evt_rcvd(adapter) && adapter->pvid)
+                vlan_tag = adapter->pvid;
 
         if (vlan_tag) {
                 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
                 if (unlikely(!skb))
                         return skb;
-
                 skb->vlan_tci = 0;
+                if (skip_hw_vlan)
+                        *skip_hw_vlan = true;
         }
 
         /* Insert the outer VLAN, if any */
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index aff0310a778b..85a06037b242 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -87,6 +87,8 @@
 #define FEC_QUIRK_HAS_GBIT              (1 << 3)
 /* Controller has extend desc buffer */
 #define FEC_QUIRK_HAS_BUFDESC_EX        (1 << 4)
+/* Controller has hardware checksum support */
+#define FEC_QUIRK_HAS_CSUM              (1 << 5)
 
 static struct platform_device_id fec_devtype[] = {
         {
@@ -105,9 +107,9 @@ static struct platform_device_id fec_devtype[] = {
         }, {
                 .name = "imx6q-fec",
                 .driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT |
-                                FEC_QUIRK_HAS_BUFDESC_EX,
+                                FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM,
         }, {
-                .name = "mvf-fec",
+                .name = "mvf600-fec",
                 .driver_data = FEC_QUIRK_ENET_MAC,
         }, {
                 /* sentinel */
@@ -120,7 +122,7 @@ enum imx_fec_type {
         IMX27_FEC,      /* runs on i.mx27/35/51 */
         IMX28_FEC,
         IMX6Q_FEC,
-        MVF_FEC,
+        MVF600_FEC,
 };
 
 static const struct of_device_id fec_dt_ids[] = {
@@ -128,7 +130,7 @@ static const struct of_device_id fec_dt_ids[] = {
         { .compatible = "fsl,imx27-fec", .data = &fec_devtype[IMX27_FEC], },
         { .compatible = "fsl,imx28-fec", .data = &fec_devtype[IMX28_FEC], },
         { .compatible = "fsl,imx6q-fec", .data = &fec_devtype[IMX6Q_FEC], },
-        { .compatible = "fsl,mvf-fec", .data = &fec_devtype[MVF_FEC], },
+        { .compatible = "fsl,mvf600-fec", .data = &fec_devtype[MVF600_FEC], },
         { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, fec_dt_ids);
@@ -449,7 +451,7 @@ fec_restart(struct net_device *ndev, int duplex)
                 netif_device_detach(ndev);
                 napi_disable(&fep->napi);
                 netif_stop_queue(ndev);
-                netif_tx_lock(ndev);
+                netif_tx_lock_bh(ndev);
         }
 
         /* Whack a reset.  We should wait for this. */
@@ -614,10 +616,10 @@ fec_restart(struct net_device *ndev, int duplex)
         writel(FEC_DEFAULT_IMASK, fep->hwp + FEC_IMASK);
 
         if (netif_running(ndev)) {
-                netif_device_attach(ndev);
-                napi_enable(&fep->napi);
+                netif_tx_unlock_bh(ndev);
                 netif_wake_queue(ndev);
-                netif_tx_unlock(ndev);
+                napi_enable(&fep->napi);
+                netif_device_attach(ndev);
         }
 }
 
@@ -1744,6 +1746,8 @@ static const struct net_device_ops fec_netdev_ops = {
 static int fec_enet_init(struct net_device *ndev)
 {
         struct fec_enet_private *fep = netdev_priv(ndev);
+        const struct platform_device_id *id_entry =
+                                platform_get_device_id(fep->pdev);
         struct bufdesc *cbd_base;
 
         /* Allocate memory for buffer descriptors. */
@@ -1775,12 +1779,14 @@ static int fec_enet_init(struct net_device *ndev)
         writel(FEC_RX_DISABLED_IMASK, fep->hwp + FEC_IMASK);
         netif_napi_add(ndev, &fep->napi, fec_enet_rx_napi, FEC_NAPI_WEIGHT);
 
-        /* enable hw accelerator */
-        ndev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM
-                        | NETIF_F_RXCSUM);
-        ndev->hw_features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM
-                        | NETIF_F_RXCSUM);
-        fep->csum_flags |= FLAG_RX_CSUM_ENABLED;
+        if (id_entry->driver_data & FEC_QUIRK_HAS_CSUM) {
+                /* enable hw accelerator */
+                ndev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM
+                                | NETIF_F_RXCSUM);
+                ndev->hw_features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM
+                                | NETIF_F_RXCSUM);
+                fep->csum_flags |= FLAG_RX_CSUM_ENABLED;
+        }
 
         fec_restart(ndev, 0);
 
diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c
index 576e4b858fce..083ea2b4d20a 100644
--- a/drivers/net/ethernet/freescale/gianfar_ptp.c
+++ b/drivers/net/ethernet/freescale/gianfar_ptp.c
@@ -524,6 +524,7 @@ static int gianfar_ptp_probe(struct platform_device *dev)
         return 0;
 
 no_clock:
+        iounmap(etsects->regs);
 no_ioremap:
         release_resource(etsects->rsrc);
 no_resource:
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 4989481c19f0..d300a0c0eafc 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -359,10 +359,26 @@ static int emac_reset(struct emac_instance *dev)
         }
 
 #ifdef CONFIG_PPC_DCR_NATIVE
-        /* Enable internal clock source */
-        if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX))
-                dcri_clrset(SDR0, SDR0_ETH_CFG,
-                            0, SDR0_ETH_CFG_ECS << dev->cell_index);
+        /*
+         * PPC460EX/GT Embedded Processor Advanced User's Manual
+         * section 28.10.1 Mode Register 0 (EMACx_MR0) states:
+         * Note: The PHY must provide a TX Clk in order to perform a soft reset
+         * of the EMAC. If none is present, select the internal clock
+         * (SDR0_ETH_CFG[EMACx_PHY_CLK] = 1).
+         * After a soft reset, select the external clock.
+         */
+        if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX)) {
+                if (dev->phy_address == 0xffffffff &&
+                    dev->phy_map == 0xffffffff) {
+                        /* No PHY: select internal loop clock before reset */
+                        dcri_clrset(SDR0, SDR0_ETH_CFG,
+                                    0, SDR0_ETH_CFG_ECS << dev->cell_index);
+                } else {
+                        /* PHY present: select external clock before reset */
+                        dcri_clrset(SDR0, SDR0_ETH_CFG,
+                                    SDR0_ETH_CFG_ECS << dev->cell_index, 0);
+                }
+        }
 #endif
 
         out_be32(&p->mr0, EMAC_MR0_SRST);
@@ -370,10 +386,14 @@ static int emac_reset(struct emac_instance *dev)
                 --n;
 
 #ifdef CONFIG_PPC_DCR_NATIVE
-         /* Enable external clock source */
-        if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX))
-                dcri_clrset(SDR0, SDR0_ETH_CFG,
-                            SDR0_ETH_CFG_ECS << dev->cell_index, 0);
+        if (emac_has_feature(dev, EMAC_FTR_460EX_PHY_CLK_FIX)) {
+                if (dev->phy_address == 0xffffffff &&
+                    dev->phy_map == 0xffffffff) {
+                        /* No PHY: restore external clock source after reset */
+                        dcri_clrset(SDR0, SDR0_ETH_CFG,
+                                    SDR0_ETH_CFG_ECS << dev->cell_index, 0);
+                }
+        }
 #endif
 
         if (n) {
diff --git a/drivers/net/ethernet/icplus/ipg.h b/drivers/net/ethernet/icplus/ipg.h
index 6ce027355fcf..abb300a31912 100644
--- a/drivers/net/ethernet/icplus/ipg.h
+++ b/drivers/net/ethernet/icplus/ipg.h
@@ -195,57 +195,57 @@ enum ipg_regs {
 /* TFD data structure masks. */
 
 /* TFDList, TFC */
-#define IPG_TFC_RSVD_MASK                       0x0000FFFF9FFFFFFF
-#define IPG_TFC_FRAMEID                         0x000000000000FFFF
-#define IPG_TFC_WORDALIGN                       0x0000000000030000
-#define IPG_TFC_WORDALIGNTODWORD                0x0000000000000000
-#define IPG_TFC_WORDALIGNTOWORD                 0x0000000000020000
-#define IPG_TFC_WORDALIGNDISABLED               0x0000000000030000
-#define IPG_TFC_TCPCHECKSUMENABLE               0x0000000000040000
-#define IPG_TFC_UDPCHECKSUMENABLE               0x0000000000080000
-#define IPG_TFC_IPCHECKSUMENABLE                0x0000000000100000
-#define IPG_TFC_FCSAPPENDDISABLE                0x0000000000200000
-#define IPG_TFC_TXINDICATE                      0x0000000000400000
-#define IPG_TFC_TXDMAINDICATE                   0x0000000000800000
-#define IPG_TFC_FRAGCOUNT                       0x000000000F000000
-#define IPG_TFC_VLANTAGINSERT                   0x0000000010000000
-#define IPG_TFC_TFDDONE                         0x0000000080000000
-#define IPG_TFC_VID                             0x00000FFF00000000
-#define IPG_TFC_CFI                             0x0000100000000000
-#define IPG_TFC_USERPRIORITY                    0x0000E00000000000
+#define IPG_TFC_RSVD_MASK                       0x0000FFFF9FFFFFFFULL
+#define IPG_TFC_FRAMEID                         0x000000000000FFFFULL
+#define IPG_TFC_WORDALIGN                       0x0000000000030000ULL
+#define IPG_TFC_WORDALIGNTODWORD                0x0000000000000000ULL
+#define IPG_TFC_WORDALIGNTOWORD                 0x0000000000020000ULL
+#define IPG_TFC_WORDALIGNDISABLED               0x0000000000030000ULL
+#define IPG_TFC_TCPCHECKSUMENABLE               0x0000000000040000ULL
+#define IPG_TFC_UDPCHECKSUMENABLE               0x0000000000080000ULL
+#define IPG_TFC_IPCHECKSUMENABLE                0x0000000000100000ULL
+#define IPG_TFC_FCSAPPENDDISABLE                0x0000000000200000ULL
+#define IPG_TFC_TXINDICATE                      0x0000000000400000ULL
+#define IPG_TFC_TXDMAINDICATE                   0x0000000000800000ULL
+#define IPG_TFC_FRAGCOUNT                       0x000000000F000000ULL
+#define IPG_TFC_VLANTAGINSERT                   0x0000000010000000ULL
+#define IPG_TFC_TFDDONE                         0x0000000080000000ULL
+#define IPG_TFC_VID                             0x00000FFF00000000ULL
+#define IPG_TFC_CFI                             0x0000100000000000ULL
+#define IPG_TFC_USERPRIORITY                    0x0000E00000000000ULL
 
 /* TFDList, FragInfo */
-#define IPG_TFI_RSVD_MASK                       0xFFFF00FFFFFFFFFF
-#define IPG_TFI_FRAGADDR                        0x000000FFFFFFFFFF
-#define IPG_TFI_FRAGLEN                         0xFFFF000000000000LL
+#define IPG_TFI_RSVD_MASK                       0xFFFF00FFFFFFFFFFULL
+#define IPG_TFI_FRAGADDR                        0x000000FFFFFFFFFFULL
+#define IPG_TFI_FRAGLEN                         0xFFFF000000000000ULL
 
 /* RFD data structure masks. */
 
 /* RFDList, RFS */
-#define IPG_RFS_RSVD_MASK                       0x0000FFFFFFFFFFFF
-#define IPG_RFS_RXFRAMELEN                      0x000000000000FFFF
-#define IPG_RFS_RXFIFOOVERRUN                   0x0000000000010000
-#define IPG_RFS_RXRUNTFRAME                     0x0000000000020000
-#define IPG_RFS_RXALIGNMENTERROR                0x0000000000040000
-#define IPG_RFS_RXFCSERROR                      0x0000000000080000
-#define IPG_RFS_RXOVERSIZEDFRAME                0x0000000000100000
-#define IPG_RFS_RXLENGTHERROR                   0x0000000000200000
-#define IPG_RFS_VLANDETECTED                    0x0000000000400000
-#define IPG_RFS_TCPDETECTED                     0x0000000000800000
-#define IPG_RFS_TCPERROR                        0x0000000001000000
-#define IPG_RFS_UDPDETECTED                     0x0000000002000000
-#define IPG_RFS_UDPERROR                        0x0000000004000000
-#define IPG_RFS_IPDETECTED                      0x0000000008000000
-#define IPG_RFS_IPERROR                         0x0000000010000000
-#define IPG_RFS_FRAMESTART                      0x0000000020000000
-#define IPG_RFS_FRAMEEND                        0x0000000040000000
-#define IPG_RFS_RFDDONE                         0x0000000080000000
-#define IPG_RFS_TCI                             0x0000FFFF00000000
+#define IPG_RFS_RSVD_MASK                       0x0000FFFFFFFFFFFFULL
+#define IPG_RFS_RXFRAMELEN                      0x000000000000FFFFULL
+#define IPG_RFS_RXFIFOOVERRUN                   0x0000000000010000ULL
+#define IPG_RFS_RXRUNTFRAME                     0x0000000000020000ULL
+#define IPG_RFS_RXALIGNMENTERROR                0x0000000000040000ULL
+#define IPG_RFS_RXFCSERROR                      0x0000000000080000ULL
+#define IPG_RFS_RXOVERSIZEDFRAME                0x0000000000100000ULL
+#define IPG_RFS_RXLENGTHERROR                   0x0000000000200000ULL
+#define IPG_RFS_VLANDETECTED                    0x0000000000400000ULL
+#define IPG_RFS_TCPDETECTED                     0x0000000000800000ULL
+#define IPG_RFS_TCPERROR                        0x0000000001000000ULL
+#define IPG_RFS_UDPDETECTED                     0x0000000002000000ULL
+#define IPG_RFS_UDPERROR                        0x0000000004000000ULL
+#define IPG_RFS_IPDETECTED                      0x0000000008000000ULL
+#define IPG_RFS_IPERROR                         0x0000000010000000ULL
+#define IPG_RFS_FRAMESTART                      0x0000000020000000ULL
+#define IPG_RFS_FRAMEEND                        0x0000000040000000ULL
+#define IPG_RFS_RFDDONE                         0x0000000080000000ULL
+#define IPG_RFS_TCI                             0x0000FFFF00000000ULL
 
 /* RFDList, FragInfo */
-#define IPG_RFI_RSVD_MASK                       0xFFFF00FFFFFFFFFF
-#define IPG_RFI_FRAGADDR                        0x000000FFFFFFFFFF
-#define IPG_RFI_FRAGLEN                         0xFFFF000000000000LL
+#define IPG_RFI_RSVD_MASK                       0xFFFF00FFFFFFFFFFULL
+#define IPG_RFI_FRAGADDR                        0x000000FFFFFFFFFFULL
+#define IPG_RFI_FRAGLEN                         0xFFFF000000000000ULL
 
 /* I/O Register masks. */
 
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index d0afeea181fb..2ad1494efbb3 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -867,7 +867,7 @@ static int txq_reclaim(struct tx_queue *txq, int budget, int force)
         struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index);
         int reclaimed;
 
-        __netif_tx_lock(nq, smp_processor_id());
+        __netif_tx_lock_bh(nq);
 
         reclaimed = 0;
         while (reclaimed < budget && txq->tx_desc_count > 0) {
@@ -913,7 +913,7 @@ static int txq_reclaim(struct tx_queue *txq, int budget, int force)
                 dev_kfree_skb(skb);
         }
 
-        __netif_tx_unlock(nq);
+        __netif_tx_unlock_bh(nq);
 
         if (reclaimed < budget)
                 mp->work_tx &= ~(1 << txq->index);
@@ -2745,7 +2745,7 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 
         INIT_WORK(&mp->tx_timeout_task, tx_timeout_task);
 
-        netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 128);
+        netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, NAPI_POLL_WEIGHT);
 
         init_timer(&mp->rx_oom);
         mp->rx_oom.data = (unsigned long)mp;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_resources.c b/drivers/net/ethernet/mellanox/mlx4/en_resources.c
index 91f2b2c43c12..d3f508697a3d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_resources.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_resources.c
@@ -60,7 +60,7 @@ void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
         context->pri_path.sched_queue = 0x83 | (priv->port - 1) << 6;
         if (user_prio >= 0) {
                 context->pri_path.sched_queue |= user_prio << 3;
-                context->pri_path.feup = 1 << 6;
+                context->pri_path.feup = MLX4_FEUP_FORCE_ETH_UP;
         }
         context->pri_path.counter_index = 0xff;
         context->cqn_send = cpu_to_be32(cqn);
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index b147bdd40768..58a8e535d698 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -131,7 +131,9 @@ static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
                 [2] = "RSS XOR Hash Function support",
                 [3] = "Device manage flow steering support",
                 [4] = "Automatic MAC reassignment support",
-                [5] = "Time stamping support"
+                [5] = "Time stamping support",
+                [6] = "VST (control vlan insertion/stripping) support",
+                [7] = "FSM (MAC anti-spoofing) support"
         };
         int i;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index e12e0d2e0ee0..1157f028a90f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -372,24 +372,29 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
                 if (MLX4_QP_ST_RC == qp_type)
                         return -EINVAL;
 
+                /* force strip vlan by clear vsd */
+                qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN);
+                if (0 != vp_oper->state.default_vlan) {
+                        qpc->pri_path.vlan_control =
+                                MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
+                                MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
+                                MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
+                } else { /* priority tagged */
+                        qpc->pri_path.vlan_control =
+                                MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
+                                MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
+                }
+
+                qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN;
                 qpc->pri_path.vlan_index = vp_oper->vlan_idx;
-                qpc->pri_path.fl = (1 << 6) | (1 << 2); /* set cv bit and hide_cqe_vlan bit*/
-                qpc->pri_path.feup |= 1 << 3; /* set fvl bit */
+                qpc->pri_path.fl |= MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
+                qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
                 qpc->pri_path.sched_queue &= 0xC7;
                 qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3;
-                mlx4_dbg(dev, "qp %d  port %d Q 0x%x set vlan to %d vidx %d feup %x fl %x\n",
-                         be32_to_cpu(qpc->local_qpn) & 0xffffff, port,
-                         (int)(qpc->pri_path.sched_queue), vp_oper->state.default_vlan,
-                         vp_oper->vlan_idx, (int)(qpc->pri_path.feup),
-                         (int)(qpc->pri_path.fl));
         }
         if (vp_oper->state.spoofchk) {
-                qpc->pri_path.feup |= 1 << 5; /* set fsm bit */;
+                qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC;
                 qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx;
-                mlx4_dbg(dev, "spoof qp %d  port %d feup  0x%x, myLmc 0x%x mindx %d\n",
-                         be32_to_cpu(qpc->local_qpn) & 0xffffff, port,
-                         (int)qpc->pri_path.feup, (int)qpc->pri_path.grh_mylmc,
-                         vp_oper->mac_idx);
         }
         return 0;
 }
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 90c253b145ef..c1b693cb3df3 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -429,6 +429,7 @@ struct qlcnic_hardware_context {
 
         u16 port_type;
         u16 board_type;
+        u16 supported_type;
 
         u16 link_speed;
         u16 link_duplex;
@@ -906,8 +907,11 @@ struct qlcnic_ipaddr {
 #define QLCNIC_FW_HANG                  0x4000
 #define QLCNIC_FW_LRO_MSS_CAP           0x8000
 #define QLCNIC_TX_INTR_SHARED           0x10000
+#define QLCNIC_APP_CHANGED_FLAGS        0x20000
 #define QLCNIC_IS_MSI_FAMILY(adapter) \
         ((adapter)->flags & (QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED))
+#define QLCNIC_IS_TSO_CAPABLE(adapter)  \
+        ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
 
 #define QLCNIC_DEF_NUM_STS_DESC_RINGS   4
 #define QLCNIC_MSIX_TBL_SPACE           8192
@@ -1033,6 +1037,7 @@ struct qlcnic_adapter {
         spinlock_t rx_mac_learn_lock;
         u32 file_prd_off;       /*File fw product offset*/
         u32 fw_version;
+        u32 offload_flags;
         const struct firmware *fw;
 };
 
@@ -1514,6 +1519,7 @@ void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
 void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
 void qlcnic_82xx_add_sysfs(struct qlcnic_adapter *adapter);
 void qlcnic_82xx_remove_sysfs(struct qlcnic_adapter *adapter);
+int qlcnic_82xx_get_settings(struct qlcnic_adapter *, struct ethtool_cmd *);
 
 int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
 int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
@@ -1540,6 +1546,8 @@ void qlcnic_add_lb_filter(struct qlcnic_adapter *, struct sk_buff *, int, u16);
 int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter);
 int qlcnic_read_mac_addr(struct qlcnic_adapter *);
 int qlcnic_setup_netdev(struct qlcnic_adapter *, struct net_device *, int);
+void qlcnic_set_netdev_features(struct qlcnic_adapter *,
+                                struct qlcnic_esw_func_cfg *);
 void qlcnic_sriov_vf_schedule_multi(struct net_device *);
 void qlcnic_vf_add_mc_list(struct net_device *, u16);
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index ea790a93ee7c..b4ff1e35a11d 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -696,15 +696,14 @@ u32 qlcnic_83xx_mac_rcode(struct qlcnic_adapter *adapter)
         return 1;
 }
 
-u32 qlcnic_83xx_mbx_poll(struct qlcnic_adapter *adapter)
+u32 qlcnic_83xx_mbx_poll(struct qlcnic_adapter *adapter, u32 *wait_time)
 {
         u32 data;
-        unsigned long wait_time = 0;
         struct qlcnic_hardware_context *ahw = adapter->ahw;
         /* wait for mailbox completion */
         do {
                 data = QLCRDX(ahw, QLCNIC_FW_MBX_CTRL);
-                if (++wait_time > QLCNIC_MBX_TIMEOUT) {
+                if (++(*wait_time) > QLCNIC_MBX_TIMEOUT) {
                         data = QLCNIC_RCODE_TIMEOUT;
                         break;
                 }
@@ -720,8 +719,8 @@ int qlcnic_83xx_mbx_op(struct qlcnic_adapter *adapter,
         u16 opcode;
         u8 mbx_err_code;
         unsigned long flags;
-        u32 rsp, mbx_val, fw_data, rsp_num, mbx_cmd;
         struct qlcnic_hardware_context *ahw = adapter->ahw;
+        u32 rsp, mbx_val, fw_data, rsp_num, mbx_cmd, wait_time = 0;
 
         opcode = LSW(cmd->req.arg[0]);
         if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) {
@@ -754,15 +753,13 @@ int qlcnic_83xx_mbx_op(struct qlcnic_adapter *adapter,
         /* Signal FW about the impending command */
         QLCWRX(ahw, QLCNIC_HOST_MBX_CTRL, QLCNIC_SET_OWNER);
 poll:
-        rsp = qlcnic_83xx_mbx_poll(adapter);
+        rsp = qlcnic_83xx_mbx_poll(adapter, &wait_time);
         if (rsp != QLCNIC_RCODE_TIMEOUT) {
                 /* Get the FW response data */
                 fw_data = readl(QLCNIC_MBX_FW(ahw, 0));
                 if (fw_data &  QLCNIC_MBX_ASYNC_EVENT) {
                         __qlcnic_83xx_process_aen(adapter);
-                        mbx_val = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL);
-                        if (mbx_val)
-                                goto poll;
+                        goto poll;
                 }
                 mbx_err_code = QLCNIC_MBX_STATUS(fw_data);
                 rsp_num = QLCNIC_MBX_NUM_REGS(fw_data);
@@ -1276,11 +1273,13 @@ out:
         return err;
 }
 
-static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test)
+static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
+                                      int num_sds_ring)
 {
         struct qlcnic_adapter *adapter = netdev_priv(netdev);
         struct qlcnic_host_sds_ring *sds_ring;
         struct qlcnic_host_rds_ring *rds_ring;
+        u16 adapter_state = adapter->is_up;
         u8 ring;
         int ret;
 
@@ -1304,6 +1303,10 @@ static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test)
         ret = qlcnic_fw_create_ctx(adapter);
         if (ret) {
                 qlcnic_detach(adapter);
+                if (adapter_state == QLCNIC_ADAPTER_UP_MAGIC) {
+                        adapter->max_sds_rings = num_sds_ring;
+                        qlcnic_attach(adapter);
+                }
                 netif_device_attach(netdev);
                 return ret;
         }
@@ -1596,7 +1599,8 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
                 return -EBUSY;
 
-        ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST);
+        ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST,
+                                         max_sds_rings);
         if (ret)
                 goto fail_diag_alloc;
 
@@ -2830,6 +2834,23 @@ int qlcnic_83xx_test_link(struct qlcnic_adapter *adapter)
                         break;
                 }
                 config = cmd.rsp.arg[3];
+                if (QLC_83XX_SFP_PRESENT(config)) {
+                        switch (ahw->module_type) {
+                        case LINKEVENT_MODULE_OPTICAL_UNKNOWN:
+                        case LINKEVENT_MODULE_OPTICAL_SRLR:
+                        case LINKEVENT_MODULE_OPTICAL_LRM:
+                        case LINKEVENT_MODULE_OPTICAL_SFP_1G:
+                                ahw->supported_type = PORT_FIBRE;
+                                break;
+                        case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE:
+                        case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN:
+                        case LINKEVENT_MODULE_TWINAX:
+                                ahw->supported_type = PORT_TP;
+                                break;
+                        default:
+                                ahw->supported_type = PORT_OTHER;
+                        }
+                }
                 if (config & 1)
                         err = 1;
         }
@@ -2838,7 +2859,8 @@ out:
         return config;
 }
 
-int qlcnic_83xx_get_settings(struct qlcnic_adapter *adapter)
+int qlcnic_83xx_get_settings(struct qlcnic_adapter *adapter,
+                             struct ethtool_cmd *ecmd)
 {
         u32 config = 0;
         int status = 0;
@@ -2851,6 +2873,54 @@ int qlcnic_83xx_get_settings(struct qlcnic_adapter *adapter)
         ahw->module_type = QLC_83XX_SFP_MODULE_TYPE(config);
         /* hard code until there is a way to get it from flash */
         ahw->board_type = QLCNIC_BRDTYPE_83XX_10G;
+
+        if (netif_running(adapter->netdev) && ahw->has_link_events) {
+                ethtool_cmd_speed_set(ecmd, ahw->link_speed);
+                ecmd->duplex = ahw->link_duplex;
+                ecmd->autoneg = ahw->link_autoneg;
+        } else {
+                ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
+                ecmd->duplex = DUPLEX_UNKNOWN;
+                ecmd->autoneg = AUTONEG_DISABLE;
+        }
+
+        if (ahw->port_type == QLCNIC_XGBE) {
+                ecmd->supported = SUPPORTED_1000baseT_Full;
+                ecmd->advertising = ADVERTISED_1000baseT_Full;
+        } else {
+                ecmd->supported = (SUPPORTED_10baseT_Half |
+                                   SUPPORTED_10baseT_Full |
+                                   SUPPORTED_100baseT_Half |
+                                   SUPPORTED_100baseT_Full |
+                                   SUPPORTED_1000baseT_Half |
+                                   SUPPORTED_1000baseT_Full);
+                ecmd->advertising = (ADVERTISED_100baseT_Half |
+                                     ADVERTISED_100baseT_Full |
+                                     ADVERTISED_1000baseT_Half |
+                                     ADVERTISED_1000baseT_Full);
+        }
+
+        switch (ahw->supported_type) {
+        case PORT_FIBRE:
+                ecmd->supported |= SUPPORTED_FIBRE;
+                ecmd->advertising |= ADVERTISED_FIBRE;
+                ecmd->port = PORT_FIBRE;
+                ecmd->transceiver = XCVR_EXTERNAL;
+                break;
+        case PORT_TP:
+                ecmd->supported |= SUPPORTED_TP;
+                ecmd->advertising |= ADVERTISED_TP;
+                ecmd->port = PORT_TP;
+                ecmd->transceiver = XCVR_INTERNAL;
+                break;
+        default:
+                ecmd->supported |= SUPPORTED_FIBRE;
+                ecmd->advertising |= ADVERTISED_FIBRE;
+                ecmd->port = PORT_OTHER;
+                ecmd->transceiver = XCVR_EXTERNAL;
+                break;
+        }
+        ecmd->phy_address = ahw->physical_port;
         return status;
 }
 
@@ -3046,7 +3116,8 @@ int qlcnic_83xx_interrupt_test(struct net_device *netdev)
         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
                 return -EIO;
 
-        ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_INTERRUPT_TEST);
+        ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_INTERRUPT_TEST,
+                                         max_sds_rings);
         if (ret)
                 goto fail_diag_irq;
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 1f1d85e6f2af..f5db67fc9f55 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -603,7 +603,7 @@ int qlcnic_83xx_get_vnic_pf_info(struct qlcnic_adapter *, struct qlcnic_info *);
 
 void qlcnic_83xx_get_minidump_template(struct qlcnic_adapter *);
 void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data);
-int qlcnic_83xx_get_settings(struct qlcnic_adapter *);
+int qlcnic_83xx_get_settings(struct qlcnic_adapter *, struct ethtool_cmd *);
 int qlcnic_83xx_set_settings(struct qlcnic_adapter *, struct ethtool_cmd *);
 void qlcnic_83xx_get_pauseparam(struct qlcnic_adapter *,
                                 struct ethtool_pauseparam *);
@@ -620,7 +620,7 @@ int qlcnic_83xx_flash_test(struct qlcnic_adapter *);
 int qlcnic_83xx_enable_flash_write(struct qlcnic_adapter *);
 int qlcnic_83xx_disable_flash_write(struct qlcnic_adapter *);
 u32 qlcnic_83xx_mac_rcode(struct qlcnic_adapter *);
-u32 qlcnic_83xx_mbx_poll(struct qlcnic_adapter *);
+u32 qlcnic_83xx_mbx_poll(struct qlcnic_adapter *, u32 *);
 void qlcnic_83xx_enable_mbx_poll(struct qlcnic_adapter *);
 void qlcnic_83xx_disable_mbx_poll(struct qlcnic_adapter *);
 #endif
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index ab1d8d99cbd5..5e7fb1dfb97b 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -382,8 +382,6 @@ static int qlcnic_83xx_idc_tx_soft_reset(struct qlcnic_adapter *adapter)
         clear_bit(__QLCNIC_RESETTING, &adapter->state);
         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
 
-        adapter->netdev->trans_start = jiffies;
-
         return 0;
 }
 
@@ -435,10 +433,6 @@ static void qlcnic_83xx_idc_attach_driver(struct qlcnic_adapter *adapter)
         }
 done:
         netif_device_attach(netdev);
-        if (netif_running(netdev)) {
-                netif_carrier_on(netdev);
-                netif_wake_queue(netdev);
-        }
 }
 
 static int qlcnic_83xx_idc_enter_failed_state(struct qlcnic_adapter *adapter,
@@ -642,15 +636,21 @@ static int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
 
 static void qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter *adapter)
 {
+        struct qlcnic_hardware_context *ahw = adapter->ahw;
+
         qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 1);
-        clear_bit(__QLCNIC_RESETTING, &adapter->state);
         set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
         qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
         set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
-        adapter->ahw->idc.quiesce_req = 0;
-        adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
-        adapter->ahw->idc.err_code = 0;
-        adapter->ahw->idc.collect_dump = 0;
+
+        ahw->idc.quiesce_req = 0;
+        ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
+        ahw->idc.err_code = 0;
+        ahw->idc.collect_dump = 0;
+        ahw->reset_context = 0;
+        adapter->tx_timeo_cnt = 0;
+
+        clear_bit(__QLCNIC_RESETTING, &adapter->state);
 }
 
 /**
@@ -851,6 +851,7 @@ static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
         /* Check for soft reset request */
         if (ahw->reset_context &&
             !(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
+                adapter->ahw->reset_context = 0;
                 qlcnic_83xx_idc_tx_soft_reset(adapter);
                 return ret;
         }
@@ -914,6 +915,7 @@ static int qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter *adapter)
 static int qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter)
 {
         dev_err(&adapter->pdev->dev, "%s: please restart!!\n", __func__);
+        clear_bit(__QLCNIC_RESETTING, &adapter->state);
         adapter->ahw->idc.err_code = -EIO;
 
         return 0;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 08efb4635007..f67652de5a63 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -131,12 +131,13 @@ static const char qlcnic_83xx_rx_stats_strings[][ETH_GSTRING_LEN] = {
         "ctx_lro_pkt_cnt",
         "ctx_ip_csum_error",
         "ctx_rx_pkts_wo_ctx",
-        "ctx_rx_pkts_dropped_wo_sts",
+        "ctx_rx_pkts_drop_wo_sds_on_card",
+        "ctx_rx_pkts_drop_wo_sds_on_host",
         "ctx_rx_osized_pkts",
         "ctx_rx_pkts_dropped_wo_rds",
         "ctx_rx_unexpected_mcast_pkts",
         "ctx_invalid_mac_address",
-        "ctx_rx_rds_ring_prim_attemoted",
+        "ctx_rx_rds_ring_prim_attempted",
         "ctx_rx_rds_ring_prim_success",
         "ctx_num_lro_flows_added",
         "ctx_num_lro_flows_removed",
@@ -251,6 +252,18 @@ static int
 qlcnic_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
 {
         struct qlcnic_adapter *adapter = netdev_priv(dev);
+
+        if (qlcnic_82xx_check(adapter))
+                return qlcnic_82xx_get_settings(adapter, ecmd);
+        else if (qlcnic_83xx_check(adapter))
+                return qlcnic_83xx_get_settings(adapter, ecmd);
+
+        return -EIO;
+}
+
+int qlcnic_82xx_get_settings(struct qlcnic_adapter *adapter,
+                             struct ethtool_cmd *ecmd)
+{
         struct qlcnic_hardware_context *ahw = adapter->ahw;
         u32 speed, reg;
         int check_sfp_module = 0;
@@ -276,10 +289,7 @@ qlcnic_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
 
         } else if (adapter->ahw->port_type == QLCNIC_XGBE) {
                 u32 val = 0;
-                if (qlcnic_83xx_check(adapter))
-                        qlcnic_83xx_get_settings(adapter);
-                else
-                        val = QLCRD32(adapter, QLCNIC_PORT_MODE_ADDR);
+                val = QLCRD32(adapter, QLCNIC_PORT_MODE_ADDR);
 
                 if (val == QLCNIC_PORT_MODE_802_3_AP) {
                         ecmd->supported = SUPPORTED_1000baseT_Full;
@@ -289,16 +299,13 @@ qlcnic_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
                         ecmd->advertising = ADVERTISED_10000baseT_Full;
                 }
 
-                if (netif_running(dev) && adapter->ahw->has_link_events) {
-                        if (qlcnic_82xx_check(adapter)) {
-                                reg = QLCRD32(adapter,
-                                              P3P_LINK_SPEED_REG(pcifn));
-                                speed = P3P_LINK_SPEED_VAL(pcifn, reg);
-                                ahw->link_speed = speed * P3P_LINK_SPEED_MHZ;
-                        }
-                        ethtool_cmd_speed_set(ecmd, adapter->ahw->link_speed);
-                        ecmd->autoneg = adapter->ahw->link_autoneg;
-                        ecmd->duplex = adapter->ahw->link_duplex;
+                if (netif_running(adapter->netdev) && ahw->has_link_events) {
+                        reg = QLCRD32(adapter, P3P_LINK_SPEED_REG(pcifn));
+                        speed = P3P_LINK_SPEED_VAL(pcifn, reg);
+                        ahw->link_speed = speed * P3P_LINK_SPEED_MHZ;
+                        ethtool_cmd_speed_set(ecmd, ahw->link_speed);
+                        ecmd->autoneg = ahw->link_autoneg;
+                        ecmd->duplex = ahw->link_duplex;
                         goto skip;
                 }
 
@@ -340,8 +347,8 @@ skip:
         case QLCNIC_BRDTYPE_P3P_10G_SFP_QT:
                 ecmd->advertising |= ADVERTISED_TP;
                 ecmd->supported |= SUPPORTED_TP;
-                check_sfp_module = netif_running(dev) &&
-                                   adapter->ahw->has_link_events;
+                check_sfp_module = netif_running(adapter->netdev) &&
+                                   ahw->has_link_events;
         case QLCNIC_BRDTYPE_P3P_10G_XFP:
                 ecmd->supported |= SUPPORTED_FIBRE;
                 ecmd->advertising |= ADVERTISED_FIBRE;
@@ -355,8 +362,8 @@ skip:
                         ecmd->advertising |=
                                 (ADVERTISED_FIBRE | ADVERTISED_TP);
                         ecmd->port = PORT_FIBRE;
-                        check_sfp_module = netif_running(dev) &&
-                                           adapter->ahw->has_link_events;
+                        check_sfp_module = netif_running(adapter->netdev) &&
+                                           ahw->has_link_events;
                 } else {
                         ecmd->autoneg = AUTONEG_ENABLE;
                         ecmd->supported |= (SUPPORTED_TP | SUPPORTED_Autoneg);
@@ -365,13 +372,6 @@ skip:
                         ecmd->port = PORT_TP;
                 }
                 break;
-        case QLCNIC_BRDTYPE_83XX_10G:
-                ecmd->autoneg = AUTONEG_DISABLE;
-                ecmd->supported |= (SUPPORTED_FIBRE | SUPPORTED_TP);
-                ecmd->advertising |= (ADVERTISED_FIBRE | ADVERTISED_TP);
-                ecmd->port = PORT_FIBRE;
-                check_sfp_module = netif_running(dev) && ahw->has_link_events;
-                break;
         default:
                 dev_err(&adapter->pdev->dev, "Unsupported board model %d\n",
                         adapter->ahw->board_type);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index 6a6512ba9f38..106a12f2a02f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -973,16 +973,57 @@ int qlcnic_change_mtu(struct net_device *netdev, int mtu)
         return rc;
 }
 
+static netdev_features_t qlcnic_process_flags(struct qlcnic_adapter *adapter,
+                                              netdev_features_t features)
+{
+        u32 offload_flags = adapter->offload_flags;
+
+        if (offload_flags & BIT_0) {
+                features |= NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
+                            NETIF_F_IPV6_CSUM;
+                adapter->rx_csum = 1;
+                if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
+                        if (!(offload_flags & BIT_1))
+                                features &= ~NETIF_F_TSO;
+                        else
+                                features |= NETIF_F_TSO;
+
+                        if (!(offload_flags & BIT_2))
+                                features &= ~NETIF_F_TSO6;
+                        else
+                                features |= NETIF_F_TSO6;
+                }
+        } else {
+                features &= ~(NETIF_F_RXCSUM |
+                              NETIF_F_IP_CSUM |
+                              NETIF_F_IPV6_CSUM);
+
+                if (QLCNIC_IS_TSO_CAPABLE(adapter))
+                        features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
+                adapter->rx_csum = 0;
+        }
+
+        return features;
+}
 
 netdev_features_t qlcnic_fix_features(struct net_device *netdev,
         netdev_features_t features)
 {
         struct qlcnic_adapter *adapter = netdev_priv(netdev);
+        netdev_features_t changed;
 
-        if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
-            qlcnic_82xx_check(adapter)) {
-                netdev_features_t changed = features ^ netdev->features;
-                features ^= changed & (NETIF_F_ALL_CSUM | NETIF_F_RXCSUM);
+        if (qlcnic_82xx_check(adapter) &&
+            (adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
+                if (adapter->flags & QLCNIC_APP_CHANGED_FLAGS) {
+                        features = qlcnic_process_flags(adapter, features);
+                } else {
+                        changed = features ^ netdev->features;
+                        features ^= changed & (NETIF_F_RXCSUM |
+                                               NETIF_F_IP_CSUM |
+                                               NETIF_F_IPV6_CSUM |
+                                               NETIF_F_TSO |
+                                               NETIF_F_TSO6);
+                }
         }
 
         if (!(features & NETIF_F_RXCSUM))
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
index 95b1b5732838..b6818f4356b9 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
@@ -134,7 +134,7 @@ struct qlcnic_mailbox_metadata {
 
 #define QLCNIC_SET_OWNER        1
 #define QLCNIC_CLR_OWNER        0
-#define QLCNIC_MBX_TIMEOUT      10000
+#define QLCNIC_MBX_TIMEOUT      5000
 
 #define QLCNIC_MBX_RSP_OK       1
 #define QLCNIC_MBX_PORT_RSP_OK  0x1a
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 264d5a4f8153..aeb26a850679 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -37,24 +37,24 @@ MODULE_PARM_DESC(qlcnic_mac_learn,
                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
 
 int qlcnic_use_msi = 1;
-MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
+MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
 
 int qlcnic_use_msi_x = 1;
-MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
+MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
 
 int qlcnic_auto_fw_reset = 1;
-MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
+MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
 
 int qlcnic_load_fw_file;
-MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
+MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
 
 int qlcnic_config_npars;
 module_param(qlcnic_config_npars, int, 0444);
-MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
+MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled)");
 
 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
 static void qlcnic_remove(struct pci_dev *pdev);
@@ -84,14 +84,9 @@ static int qlcnic_start_firmware(struct qlcnic_adapter *);
 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
-static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
-                                struct qlcnic_esw_func_cfg *);
 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
 
-#define QLCNIC_IS_TSO_CAPABLE(adapter)  \
-        ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
-
 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
 {
         struct qlcnic_hardware_context *ahw = adapter->ahw;
@@ -308,6 +303,23 @@ int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
         return 0;
 }
 
+static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
+{
+        struct qlcnic_mac_list_s *cur;
+        struct list_head *head;
+
+        list_for_each(head, &adapter->mac_list) {
+                cur = list_entry(head, struct qlcnic_mac_list_s, list);
+                if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
+                        qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
+                                                  0, QLCNIC_MAC_DEL);
+                        list_del(&cur->list);
+                        kfree(cur);
+                        return;
+                }
+        }
+}
+
 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 {
         struct qlcnic_adapter *adapter = netdev_priv(netdev);
@@ -322,11 +334,15 @@ static int qlcnic_set_mac(struct net_device *netdev, void *p)
         if (!is_valid_ether_addr(addr->sa_data))
                 return -EINVAL;
 
+        if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
+                return 0;
+
         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
                 netif_device_detach(netdev);
                 qlcnic_napi_disable(adapter);
         }
 
+        qlcnic_delete_adapter_mac(adapter);
         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
         qlcnic_set_multi(adapter->netdev);
@@ -1053,8 +1069,6 @@ void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 
         if (!esw_cfg->promisc_mode)
                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
-
-        qlcnic_set_netdev_features(adapter, esw_cfg);
 }
 
 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
@@ -1069,51 +1083,23 @@ int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
                         return -EIO;
         qlcnic_set_vlan_config(adapter, &esw_cfg);
         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
+        qlcnic_set_netdev_features(adapter, &esw_cfg);
 
         return 0;
 }
 
-static void
-qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
-                struct qlcnic_esw_func_cfg *esw_cfg)
+void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
+                                struct qlcnic_esw_func_cfg *esw_cfg)
 {
         struct net_device *netdev = adapter->netdev;
-        unsigned long features, vlan_features;
 
         if (qlcnic_83xx_check(adapter))
                 return;
 
-        features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
-                    NETIF_F_IPV6_CSUM | NETIF_F_GRO);
-        vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
-                        NETIF_F_IPV6_CSUM);
-
-        if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
-                features |= (NETIF_F_TSO | NETIF_F_TSO6);
-                vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
-        }
-
-        if (netdev->features & NETIF_F_LRO)
-                features |= NETIF_F_LRO;
-
-        if (esw_cfg->offload_flags & BIT_0) {
-                netdev->features |= features;
-                adapter->rx_csum = 1;
-                if (!(esw_cfg->offload_flags & BIT_1)) {
-                        netdev->features &= ~NETIF_F_TSO;
-                        features &= ~NETIF_F_TSO;
-                }
-                if (!(esw_cfg->offload_flags & BIT_2)) {
-                        netdev->features &= ~NETIF_F_TSO6;
-                        features &= ~NETIF_F_TSO6;
-                }
-        } else {
-                netdev->features &= ~features;
-                features &= ~features;
-                adapter->rx_csum = 0;
-        }
-
-        netdev->vlan_features = (features & vlan_features);
+        adapter->offload_flags = esw_cfg->offload_flags;
+        adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
+        netdev_update_features(netdev);
+        adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
 }
 
 static int
@@ -1995,8 +1981,10 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
         pci_enable_pcie_error_reporting(pdev);
 
         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
-        if (!ahw)
+        if (!ahw) {
+                err = -ENOMEM;
                 goto err_out_free_res;
+        }
 
         switch (ent->device) {
         case PCI_DEVICE_ID_QLOGIC_QLE824X:
@@ -2032,6 +2020,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
         if (adapter->qlcnic_wq == NULL) {
+                err = -ENOMEM;
                 dev_err(&pdev->dev, "Failed to create workqueue\n");
                 goto err_out_free_netdev;
         }
@@ -2112,6 +2101,10 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                         goto err_out_disable_msi;
         }
 
+        err = qlcnic_get_act_pci_func(adapter);
+        if (err)
+                goto err_out_disable_mbx_intr;
+
         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
         if (err)
                 goto err_out_disable_mbx_intr;
@@ -2141,9 +2134,6 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                 break;
         }
 
-        if (qlcnic_get_act_pci_func(adapter))
-                goto err_out_disable_mbx_intr;
-
         if (adapter->drv_mac_learn)
                 qlcnic_alloc_lb_filters_mem(adapter);
 
@@ -2481,12 +2471,17 @@ static void qlcnic_tx_timeout(struct net_device *netdev)
         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
                 return;
 
-        dev_err(&netdev->dev, "transmit timeout, resetting.\n");
-
-        if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
-                adapter->need_fw_reset = 1;
-        else
+        if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
+                netdev_info(netdev, "Tx timeout, reset the adapter.\n");
+                if (qlcnic_82xx_check(adapter))
+                        adapter->need_fw_reset = 1;
+                else if (qlcnic_83xx_check(adapter))
+                        qlcnic_83xx_idc_request_reset(adapter,
+                                                      QLCNIC_FORCE_FW_DUMP_KEY);
+        } else {
+                netdev_info(netdev, "Tx timeout, reset adapter context.\n");
                 adapter->ahw->reset_context = 1;
+        }
 }
 
 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
@@ -3123,10 +3118,8 @@ qlcnic_check_health(struct qlcnic_adapter *adapter)
                 if (adapter->need_fw_reset)
                         goto detach;
 
-                if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
+                if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
                         qlcnic_reset_hw_context(adapter);
-                        adapter->netdev->trans_start = jiffies;
-                }
 
                 return 0;
         }
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index 44d547d78b84..196b2d100407 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -280,9 +280,9 @@ void qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
 static int qlcnic_sriov_post_bc_msg(struct qlcnic_adapter *adapter, u32 *hdr,
                                     u32 *pay, u8 pci_func, u8 size)
 {
+        u32 rsp, mbx_val, fw_data, rsp_num, mbx_cmd, val, wait_time = 0;
         struct qlcnic_hardware_context *ahw = adapter->ahw;
         unsigned long flags;
-        u32 rsp, mbx_val, fw_data, rsp_num, mbx_cmd, val;
         u16 opcode;
         u8 mbx_err_code;
         int i, j;
@@ -330,15 +330,13 @@ static int qlcnic_sriov_post_bc_msg(struct qlcnic_adapter *adapter, u32 *hdr,
          * assume something is wrong.
          */
 poll:
-        rsp = qlcnic_83xx_mbx_poll(adapter);
+        rsp = qlcnic_83xx_mbx_poll(adapter, &wait_time);
         if (rsp != QLCNIC_RCODE_TIMEOUT) {
                 /* Get the FW response data */
                 fw_data = readl(QLCNIC_MBX_FW(ahw, 0));
                 if (fw_data &  QLCNIC_MBX_ASYNC_EVENT) {
                         __qlcnic_83xx_process_aen(adapter);
-                        mbx_val = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL);
-                        if (mbx_val)
-                                goto poll;
+                        goto poll;
                 }
                 mbx_err_code = QLCNIC_MBX_STATUS(fw_data);
                 rsp_num = QLCNIC_MBX_NUM_REGS(fw_data);
@@ -1736,7 +1734,6 @@ static int qlcnic_sriov_vf_handle_context_reset(struct qlcnic_adapter *adapter)
 
         if (!qlcnic_sriov_vf_reinit_driver(adapter)) {
                 qlcnic_sriov_vf_attach(adapter);
-                adapter->netdev->trans_start = jiffies;
                 adapter->tx_timeo_cnt = 0;
                 adapter->reset_ctx_cnt = 0;
                 adapter->fw_fail_cnt = 0;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index c81be2da119b..1a66ccded235 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -1133,9 +1133,6 @@ static int qlcnic_sriov_validate_linkevent(struct qlcnic_vf_info *vf,
         if ((cmd->req.arg[1] >> 16) != vf->rx_ctx_id)
                 return -EINVAL;
 
-        if (!(cmd->req.arg[1] & BIT_8))
-                return -EINVAL;
-
         return 0;
 }
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index 4e22e794a186..e7a2fe21b649 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -544,6 +544,9 @@ static ssize_t qlcnic_sysfs_write_esw_config(struct file *file,
                 switch (esw_cfg[i].op_mode) {
                 case QLCNIC_PORT_DEFAULTS:
                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
+                        rtnl_lock();
+                        qlcnic_set_netdev_features(adapter, &esw_cfg[i]);
+                        rtnl_unlock();
                         break;
                 case QLCNIC_ADD_VLAN:
                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 87463bc701a6..50235d201592 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -1106,6 +1106,7 @@ static int ql_get_next_chunk(struct ql_adapter *qdev, struct rx_ring *rx_ring,
                 if (pci_dma_mapping_error(qdev->pdev, map)) {
                         __free_pages(rx_ring->pg_chunk.page,
                                         qdev->lbq_buf_order);
+                        rx_ring->pg_chunk.page = NULL;
                         netif_err(qdev, drv, qdev->ndev,
                                   "PCI mapping failed.\n");
                         return -ENOMEM;
@@ -2777,6 +2778,12 @@ static void ql_free_lbq_buffers(struct ql_adapter *qdev, struct rx_ring *rx_ring
                         curr_idx = 0;
 
         }
+        if (rx_ring->pg_chunk.page) {
+                pci_unmap_page(qdev->pdev, rx_ring->pg_chunk.map,
+                        ql_lbq_block_size(qdev), PCI_DMA_FROMDEVICE);
+                put_page(rx_ring->pg_chunk.page);
+                rx_ring->pg_chunk.page = NULL;
+        }
 }
 
 static void ql_free_sbq_buffers(struct ql_adapter *qdev, struct rx_ring *rx_ring)
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index 7d1fb9ad1296..03523459c406 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -1136,6 +1136,7 @@ static void cp_clean_rings (struct cp_private *cp)
                         cp->dev->stats.tx_dropped++;
                 }
         }
+        netdev_reset_queue(cp->dev);
 
         memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE);
         memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 79c520b64fdd..393f961a013c 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5856,7 +5856,20 @@ err_out:
         return -EIO;
 }
 
-static inline void rtl8169_tso_csum(struct rtl8169_private *tp,
+static bool rtl_skb_pad(struct sk_buff *skb)
+{
+        if (skb_padto(skb, ETH_ZLEN))
+                return false;
+        skb_put(skb, ETH_ZLEN - skb->len);
+        return true;
+}
+
+static bool rtl_test_hw_pad_bug(struct rtl8169_private *tp, struct sk_buff *skb)
+{
+        return skb->len < ETH_ZLEN && tp->mac_version == RTL_GIGA_MAC_VER_34;
+}
+
+static inline bool rtl8169_tso_csum(struct rtl8169_private *tp,
                                     struct sk_buff *skb, u32 *opts)
 {
         const struct rtl_tx_desc_info *info = tx_desc_info + tp->txd_version;
@@ -5869,13 +5882,20 @@ static inline void rtl8169_tso_csum(struct rtl8169_private *tp,
         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
                 const struct iphdr *ip = ip_hdr(skb);
 
+                if (unlikely(rtl_test_hw_pad_bug(tp, skb)))
+                        return skb_checksum_help(skb) == 0 && rtl_skb_pad(skb);
+
                 if (ip->protocol == IPPROTO_TCP)
                         opts[offset] |= info->checksum.tcp;
                 else if (ip->protocol == IPPROTO_UDP)
                         opts[offset] |= info->checksum.udp;
                 else
                         WARN_ON_ONCE(1);
+        } else {
+                if (unlikely(rtl_test_hw_pad_bug(tp, skb)))
+                        return rtl_skb_pad(skb);
         }
+        return true;
 }
 
 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
@@ -5896,17 +5916,15 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
                 goto err_stop_0;
         }
 
-        /* 8168evl does not automatically pad to minimum length. */
-        if (unlikely(tp->mac_version == RTL_GIGA_MAC_VER_34 &&
-                     skb->len < ETH_ZLEN)) {
-                if (skb_padto(skb, ETH_ZLEN))
-                        goto err_update_stats;
-                skb_put(skb, ETH_ZLEN - skb->len);
-        }
-
         if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
                 goto err_stop_0;
 
+        opts[1] = cpu_to_le32(rtl8169_tx_vlan_tag(skb));
+        opts[0] = DescOwn;
+
+        if (!rtl8169_tso_csum(tp, skb, opts))
+                goto err_update_stats;
+
         len = skb_headlen(skb);
         mapping = dma_map_single(d, skb->data, len, DMA_TO_DEVICE);
         if (unlikely(dma_mapping_error(d, mapping))) {
@@ -5918,11 +5936,6 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
         tp->tx_skb[entry].len = len;
         txd->addr = cpu_to_le64(mapping);
 
-        opts[1] = cpu_to_le32(rtl8169_tx_vlan_tag(skb));
-        opts[0] = DescOwn;
-
-        rtl8169_tso_csum(tp, skb, opts);
-
         frags = rtl8169_xmit_frags(tp, skb, opts);
         if (frags < 0)
                 goto err_dma_1;
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 33dc6f2418f2..42e9dd05c936 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2745,11 +2745,6 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
         if (mdp->cd->tsu) {
                 struct resource *rtsu;
                 rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-                if (!rtsu) {
-                        dev_err(&pdev->dev, "Not found TSU resource\n");
-                        ret = -ENODEV;
-                        goto out_release;
-                }
                 mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu);
                 if (IS_ERR(mdp->tsu_addr)) {
                         ret = PTR_ERR(mdp->tsu_addr);
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 01b99206139a..39e4cb39de29 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -638,14 +638,16 @@ static void efx_start_datapath(struct efx_nic *efx)
                            EFX_MAX_FRAME_LEN(efx->net_dev->mtu) +
                            efx->type->rx_buffer_padding);
         rx_buf_len = (sizeof(struct efx_rx_page_state) +
-                      EFX_PAGE_IP_ALIGN + efx->rx_dma_len);
+                      NET_IP_ALIGN + efx->rx_dma_len);
         if (rx_buf_len <= PAGE_SIZE) {
                 efx->rx_scatter = false;
                 efx->rx_buffer_order = 0;
         } else if (efx->type->can_rx_scatter) {
+                BUILD_BUG_ON(EFX_RX_USR_BUF_SIZE % L1_CACHE_BYTES);
                 BUILD_BUG_ON(sizeof(struct efx_rx_page_state) +
-                             EFX_PAGE_IP_ALIGN + EFX_RX_USR_BUF_SIZE >
-                             PAGE_SIZE / 2);
+                             2 * ALIGN(NET_IP_ALIGN + EFX_RX_USR_BUF_SIZE,
+                                       EFX_RX_BUF_ALIGNMENT) >
+                             PAGE_SIZE);
                 efx->rx_scatter = true;
                 efx->rx_dma_len = EFX_RX_USR_BUF_SIZE;
                 efx->rx_buffer_order = 0;
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 9bd433a095c5..39d6bd77f015 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -72,8 +72,20 @@
 /* Maximum possible MTU the driver supports */
 #define EFX_MAX_MTU (9 * 1024)
 
-/* Size of an RX scatter buffer.  Small enough to pack 2 into a 4K page. */
-#define EFX_RX_USR_BUF_SIZE 1824
+/* Size of an RX scatter buffer.  Small enough to pack 2 into a 4K page,
+ * and should be a multiple of the cache line size.
+ */
+#define EFX_RX_USR_BUF_SIZE     (2048 - 256)
+
+/* If possible, we should ensure cache line alignment at start and end
+ * of every buffer.  Otherwise, we just need to ensure 4-byte
+ * alignment of the network header.
+ */
+#if NET_IP_ALIGN == 0
+#define EFX_RX_BUF_ALIGNMENT    L1_CACHE_BYTES
+#else
+#define EFX_RX_BUF_ALIGNMENT    4
+#endif
 
 /* Forward declare Precision Time Protocol (PTP) support structure. */
 struct efx_ptp_data;
@@ -468,24 +480,11 @@ enum nic_state {
 };
 
 /*
- * Alignment of page-allocated RX buffers
- *
- * Controls the number of bytes inserted at the start of an RX buffer.
- * This is the equivalent of NET_IP_ALIGN [which controls the alignment
- * of the skb->head for hardware DMA].
- */
-#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-#define EFX_PAGE_IP_ALIGN 0
-#else
-#define EFX_PAGE_IP_ALIGN NET_IP_ALIGN
-#endif
-
-/*
  * Alignment of the skb->head which wraps a page-allocated RX buffer
  *
  * The skb allocated to wrap an rx_buffer can have this alignment. Since
  * the data is memcpy'd from the rx_buf, it does not need to be equal to
- * EFX_PAGE_IP_ALIGN.
+ * NET_IP_ALIGN.
  */
 #define EFX_PAGE_SKB_ALIGN 2
 
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index e73e30bac10e..a7dfe36cabf4 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -93,8 +93,8 @@ static inline void efx_sync_rx_buffer(struct efx_nic *efx,
 
 void efx_rx_config_page_split(struct efx_nic *efx)
 {
-        efx->rx_page_buf_step = ALIGN(efx->rx_dma_len + EFX_PAGE_IP_ALIGN,
-                                      L1_CACHE_BYTES);
+        efx->rx_page_buf_step = ALIGN(efx->rx_dma_len + NET_IP_ALIGN,
+                                      EFX_RX_BUF_ALIGNMENT);
         efx->rx_bufs_per_page = efx->rx_buffer_order ? 1 :
                 ((PAGE_SIZE - sizeof(struct efx_rx_page_state)) /
                  efx->rx_page_buf_step);
@@ -188,9 +188,9 @@ static int efx_init_rx_buffers(struct efx_rx_queue *rx_queue)
                 do {
                         index = rx_queue->added_count & rx_queue->ptr_mask;
                         rx_buf = efx_rx_buffer(rx_queue, index);
-                        rx_buf->dma_addr = dma_addr + EFX_PAGE_IP_ALIGN;
+                        rx_buf->dma_addr = dma_addr + NET_IP_ALIGN;
                         rx_buf->page = page;
-                        rx_buf->page_offset = page_offset + EFX_PAGE_IP_ALIGN;
+                        rx_buf->page_offset = page_offset + NET_IP_ALIGN;
                         rx_buf->len = efx->rx_dma_len;
                         rx_buf->flags = 0;
                         ++rx_queue->added_count;
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index f695a50bac47..43c1f3223322 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -1,6 +1,6 @@
 config STMMAC_ETH
         tristate "STMicroelectronics 10/100/1000 Ethernet driver"
-        depends on HAS_IOMEM
+        depends on HAS_IOMEM && HAS_DMA
         select NET_CORE
         select MII
         select PHYLIB
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index d5a141c7c4e7..1c502bb0c916 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -229,7 +229,8 @@ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb)
         }
 
         if (port->passthru)
-                vlan = list_first_entry(&port->vlans, struct macvlan_dev, list);
+                vlan = list_first_or_null_rcu(&port->vlans,
+                                              struct macvlan_dev, list);
         else
                 vlan = macvlan_hash_lookup(port, eth->h_dest);
         if (vlan == NULL)
@@ -814,7 +815,7 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
         if (err < 0)
                 goto upper_dev_unlink;
 
-        list_add_tail(&vlan->list, &port->vlans);
+        list_add_tail_rcu(&vlan->list, &port->vlans);
         netif_stacked_transfer_operstate(lowerdev, dev);
 
         return 0;
@@ -842,7 +843,7 @@ void macvlan_dellink(struct net_device *dev, struct list_head *head)
 {
         struct macvlan_dev *vlan = netdev_priv(dev);
 
-        list_del(&vlan->list);
+        list_del_rcu(&vlan->list);
         unregister_netdevice_queue(dev, head);
         netdev_upper_dev_unlink(vlan->lowerdev, dev);
 }
diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c
index ed947dd76fbd..f3cdf64997d6 100644
--- a/drivers/net/ntb_netdev.c
+++ b/drivers/net/ntb_netdev.c
@@ -375,6 +375,8 @@ static void ntb_netdev_remove(struct pci_dev *pdev)
         if (dev == NULL)
                 return;
 
+        list_del(&dev->list);
+
         ndev = dev->ndev;
 
         unregister_netdev(ndev);
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index cf887c2384e9..86adfa0a912e 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -582,6 +582,7 @@ static const struct usb_device_id products[] = {
         {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)},    /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
         {QMI_FIXED_INTF(0x2357, 0x0201, 4)},    /* TP-LINK HSUPA Modem MA180 */
         {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},    /* Telit LE920 */
+        {QMI_FIXED_INTF(0x1e2d, 0x12d1, 4)},    /* Cinterion PLxx */
 
         /* 4. Gobi 1000 devices */
         {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},    /* Acer Gobi Modem Device */
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
index a491d3a95393..6cbdac67f3a0 100644
--- a/drivers/net/usb/rtl8150.c
+++ b/drivers/net/usb/rtl8150.c
@@ -130,19 +130,23 @@ struct rtl8150 {
         struct usb_device *udev;
         struct tasklet_struct tl;
         struct net_device *netdev;
-        struct urb *rx_urb, *tx_urb, *intr_urb, *ctrl_urb;
+        struct urb *rx_urb, *tx_urb, *intr_urb;
         struct sk_buff *tx_skb, *rx_skb;
         struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE];
         spinlock_t rx_pool_lock;
         struct usb_ctrlrequest dr;
         int intr_interval;
-        __le16 rx_creg;
         u8 *intr_buff;
         u8 phy;
 };
 
 typedef struct rtl8150 rtl8150_t;
 
+struct async_req {
+        struct usb_ctrlrequest dr;
+        u16 rx_creg;
+};
+
 static const char driver_name [] = "rtl8150";
 
 /*
@@ -164,51 +168,47 @@ static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
                                indx, 0, data, size, 500);
 }
 
-static void ctrl_callback(struct urb *urb)
+static void async_set_reg_cb(struct urb *urb)
 {
-        rtl8150_t *dev;
+        struct async_req *req = (struct async_req *)urb->context;
         int status = urb->status;
 
-        switch (status) {
-        case 0:
-                break;
-        case -EINPROGRESS:
-                break;
-        case -ENOENT:
-                break;
-        default:
-                if (printk_ratelimit())
-                        dev_warn(&urb->dev->dev, "ctrl urb status %d\n", status);
-        }
-        dev = urb->context;
-        clear_bit(RX_REG_SET, &dev->flags);
+        if (status < 0)
+                dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
+        kfree(req);
+        usb_free_urb(urb);
 }
 
-static int async_set_registers(rtl8150_t * dev, u16 indx, u16 size)
+static int async_set_registers(rtl8150_t *dev, u16 indx, u16 size, u16 reg)
 {
-        int ret;
-
-        if (test_bit(RX_REG_SET, &dev->flags))
-                return -EAGAIN;
+        int res = -ENOMEM;
+        struct urb *async_urb;
+        struct async_req *req;
 
-        dev->dr.bRequestType = RTL8150_REQT_WRITE;
-        dev->dr.bRequest = RTL8150_REQ_SET_REGS;
-        dev->dr.wValue = cpu_to_le16(indx);
-        dev->dr.wIndex = 0;
-        dev->dr.wLength = cpu_to_le16(size);
-        dev->ctrl_urb->transfer_buffer_length = size;
-        usb_fill_control_urb(dev->ctrl_urb, dev->udev,
-                         usb_sndctrlpipe(dev->udev, 0), (char *) &dev->dr,
-                         &dev->rx_creg, size, ctrl_callback, dev);
-        if ((ret = usb_submit_urb(dev->ctrl_urb, GFP_ATOMIC))) {
-                if (ret == -ENODEV)
+        req = kmalloc(sizeof(struct async_req), GFP_ATOMIC);
+        if (req == NULL)
+                return res;
+        async_urb = usb_alloc_urb(0, GFP_ATOMIC);
+        if (async_urb == NULL) {
+                kfree(req);
+                return res;
+        }
+        req->rx_creg = cpu_to_le16(reg);
+        req->dr.bRequestType = RTL8150_REQT_WRITE;
+        req->dr.bRequest = RTL8150_REQ_SET_REGS;
+        req->dr.wIndex = 0;
+        req->dr.wValue = cpu_to_le16(indx);
+        req->dr.wLength = cpu_to_le16(size);
+        usb_fill_control_urb(async_urb, dev->udev,
+                             usb_sndctrlpipe(dev->udev, 0), (void *)&req->dr,
+                             &req->rx_creg, size, async_set_reg_cb, req);
+        res = usb_submit_urb(async_urb, GFP_ATOMIC);
+        if (res) {
+                if (res == -ENODEV)
                         netif_device_detach(dev->netdev);
-                dev_err(&dev->udev->dev,
-                        "control request submission failed: %d\n", ret);
-        } else
-                set_bit(RX_REG_SET, &dev->flags);
-
-        return ret;
+                dev_err(&dev->udev->dev, "%s failed with %d\n", __func__, res);
+        }
+        return res;
 }
 
 static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg)
@@ -330,13 +330,6 @@ static int alloc_all_urbs(rtl8150_t * dev)
                 usb_free_urb(dev->tx_urb);
                 return 0;
         }
-        dev->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
-        if (!dev->ctrl_urb) {
-                usb_free_urb(dev->rx_urb);
-                usb_free_urb(dev->tx_urb);
-                usb_free_urb(dev->intr_urb);
-                return 0;
-        }
 
         return 1;
 }
@@ -346,7 +339,6 @@ static void free_all_urbs(rtl8150_t * dev)
         usb_free_urb(dev->rx_urb);
         usb_free_urb(dev->tx_urb);
         usb_free_urb(dev->intr_urb);
-        usb_free_urb(dev->ctrl_urb);
 }
 
 static void unlink_all_urbs(rtl8150_t * dev)
@@ -354,7 +346,6 @@ static void unlink_all_urbs(rtl8150_t * dev)
         usb_kill_urb(dev->rx_urb);
         usb_kill_urb(dev->tx_urb);
         usb_kill_urb(dev->intr_urb);
-        usb_kill_urb(dev->ctrl_urb);
 }
 
 static inline struct sk_buff *pull_skb(rtl8150_t *dev)
@@ -629,7 +620,6 @@ static int enable_net_traffic(rtl8150_t * dev)
         }
         /* RCR bit7=1 attach Rx info at the end;  =0 HW CRC (which is broken) */
         rcr = 0x9e;
-        dev->rx_creg = cpu_to_le16(rcr);
         tcr = 0xd8;
         cr = 0x0c;
         if (!(rcr & 0x80))
@@ -662,20 +652,22 @@ static void rtl8150_tx_timeout(struct net_device *netdev)
 static void rtl8150_set_multicast(struct net_device *netdev)
 {
         rtl8150_t *dev = netdev_priv(netdev);
+        u16 rx_creg = 0x9e;
+
         netif_stop_queue(netdev);
         if (netdev->flags & IFF_PROMISC) {
-                dev->rx_creg |= cpu_to_le16(0x0001);
+                rx_creg |= 0x0001;
                 dev_info(&netdev->dev, "%s: promiscuous mode\n", netdev->name);
         } else if (!netdev_mc_empty(netdev) ||
                    (netdev->flags & IFF_ALLMULTI)) {
-                dev->rx_creg &= cpu_to_le16(0xfffe);
-                dev->rx_creg |= cpu_to_le16(0x0002);
+                rx_creg &= 0xfffe;
+                rx_creg |= 0x0002;
                 dev_info(&netdev->dev, "%s: allmulti set\n", netdev->name);
         } else {
                 /* ~RX_MULTICAST, ~RX_PROMISCUOUS */
-                dev->rx_creg &= cpu_to_le16(0x00fc);
+                rx_creg &= 0x00fc;
         }
-        async_set_registers(dev, RCR, 2);
+        async_set_registers(dev, RCR, sizeof(rx_creg), rx_creg);
         netif_wake_queue(netdev);
 }
 
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index f95cb032394b..06ee82f557d4 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1477,7 +1477,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 
         /* usbnet already took usb runtime pm, so have to enable the feature
          * for usb interface, otherwise usb_autopm_get_interface may return
-         * failure if USB_SUSPEND(RUNTIME_PM) is enabled.
+         * failure if RUNTIME_PM is enabled.
          */
         if (!driver->supports_autosuspend) {
                 driver->supports_autosuspend = 1;
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 3c23fdc27bf0..c9e00387d999 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -28,7 +28,7 @@
 #include <linux/slab.h>
 #include <linux/cpu.h>
 
-static int napi_weight = 128;
+static int napi_weight = NAPI_POLL_WEIGHT;
 module_param(napi_weight, int, 0444);
 
 static bool csum = true, gso = true;
@@ -636,10 +636,11 @@ static int virtnet_open(struct net_device *dev)
         struct virtnet_info *vi = netdev_priv(dev);
         int i;
 
-        for (i = 0; i < vi->curr_queue_pairs; i++) {
-                /* Make sure we have some buffers: if oom use wq. */
-                if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))
-                        schedule_delayed_work(&vi->refill, 0);
+        for (i = 0; i < vi->max_queue_pairs; i++) {
+                if (i < vi->curr_queue_pairs)
+                        /* Make sure we have some buffers: if oom use wq. */
+                        if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))
+                                schedule_delayed_work(&vi->refill, 0);
                 virtnet_napi_enable(&vi->rq[i]);
         }
 
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index ba81f3c39a83..3b1d2ee7156b 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -301,7 +301,7 @@ static inline struct hlist_head *vxlan_fdb_head(struct vxlan_dev *vxlan,
 }
 
 /* Look up Ethernet address in forwarding table */
-static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
+static struct vxlan_fdb *__vxlan_find_mac(struct vxlan_dev *vxlan,
                                         const u8 *mac)
 
 {
@@ -316,6 +316,18 @@ static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
         return NULL;
 }
 
+static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
+                                        const u8 *mac)
+{
+        struct vxlan_fdb *f;
+
+        f = __vxlan_find_mac(vxlan, mac);
+        if (f)
+                f->used = jiffies;
+
+        return f;
+}
+
 /* Add/update destinations for multicast */
 static int vxlan_fdb_append(struct vxlan_fdb *f,
                             __be32 ip, __be16 port, __u32 vni, __u32 ifindex)
@@ -353,7 +365,7 @@ static int vxlan_fdb_create(struct vxlan_dev *vxlan,
         struct vxlan_fdb *f;
         int notify = 0;
 
-        f = vxlan_find_mac(vxlan, mac);
+        f = __vxlan_find_mac(vxlan, mac);
         if (f) {
                 if (flags & NLM_F_EXCL) {
                         netdev_dbg(vxlan->dev,
@@ -563,7 +575,6 @@ static void vxlan_snoop(struct net_device *dev,
 
         f = vxlan_find_mac(vxlan, src_mac);
         if (likely(f)) {
-                f->used = jiffies;
                 if (likely(f->remote.remote_ip == src_ip))
                         return;
 
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 9b20d9ee2719..7f702fe3ecc2 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -2369,6 +2369,9 @@ ath5k_tx_complete_poll_work(struct work_struct *work)
         int i;
         bool needreset = false;
 
+        if (!test_bit(ATH_STAT_STARTED, ah->status))
+                return;
+
         mutex_lock(&ah->lock);
 
         for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
@@ -2676,6 +2679,7 @@ done:
         mmiowb();
         mutex_unlock(&ah->lock);
 
+        set_bit(ATH_STAT_STARTED, ah->status);
         ieee80211_queue_delayed_work(ah->hw, &ah->tx_complete_work,
                         msecs_to_jiffies(ATH5K_TX_COMPLETE_POLL_INT));
 
@@ -2737,6 +2741,7 @@ void ath5k_stop(struct ieee80211_hw *hw)
 
         ath5k_stop_tasklets(ah);
 
+        clear_bit(ATH_STAT_STARTED, ah->status);
         cancel_delayed_work_sync(&ah->tx_complete_work);
 
         if (!ath5k_modparam_no_hw_rfkill_switch)
diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index 17507dc8a1e7..f3dc124c60c7 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -17,7 +17,7 @@ config ATH9K_BTCOEX_SUPPORT
 
 config ATH9K
         tristate "Atheros 802.11n wireless cards support"
-        depends on MAC80211
+        depends on MAC80211 && HAS_DMA
         select ATH9K_HW
         select MAC80211_LEDS
         select LEDS_CLASS
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 639ba7d18ea4..6988e1d081f2 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -965,7 +965,7 @@ static void ar9003_hw_do_manual_peak_cal(struct ath_hw *ah,
 {
         int i;
 
-        if (!AR_SREV_9462(ah) && !AR_SREV_9565(ah))
+        if (!AR_SREV_9462(ah) && !AR_SREV_9565(ah) && !AR_SREV_9485(ah))
                 return;
 
         for (i = 0; i < AR9300_MAX_CHAINS; i++) {
diff --git a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
index 712f415b8c08..88ff1d7b53ab 100644
--- a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
@@ -1020,7 +1020,7 @@ static const u32 ar9485_1_1_baseband_postamble[][5] = {
         {0x0000a284, 0x00000000, 0x00000000, 0x000002a0, 0x000002a0},
         {0x0000a288, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x0000a28c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
-        {0x0000a2c4, 0x00158d18, 0x00158d18, 0x00158d18, 0x00158d18},
+        {0x0000a2c4, 0x00158d18, 0x00158d18, 0x00058d18, 0x00058d18},
         {0x0000a2d0, 0x00071981, 0x00071981, 0x00071982, 0x00071982},
         {0x0000a2d8, 0xf999a83a, 0xf999a83a, 0xf999a83a, 0xf999a83a},
         {0x0000a358, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
diff --git a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
index 0c2ac0c6dc89..e85a8b076c22 100644
--- a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
@@ -233,9 +233,9 @@ static const u32 ar9565_1p0_baseband_core[][2] = {
         {0x00009d10, 0x01834061},
         {0x00009d14, 0x00c00400},
         {0x00009d18, 0x00000000},
-        {0x00009e08, 0x0078230c},
-        {0x00009e24, 0x990bb515},
-        {0x00009e28, 0x126f0000},
+        {0x00009e08, 0x0038230c},
+        {0x00009e24, 0x9907b515},
+        {0x00009e28, 0x126f0600},
         {0x00009e30, 0x06336f77},
         {0x00009e34, 0x6af6532f},
         {0x00009e38, 0x0cc80c00},
@@ -337,7 +337,7 @@ static const u32 ar9565_1p0_baseband_core[][2] = {
 
 static const u32 ar9565_1p0_baseband_postamble[][5] = {
         /* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
-        {0x00009810, 0xd00a8005, 0xd00a8005, 0xd00a8005, 0xd00a800d},
+        {0x00009810, 0xd00a8005, 0xd00a8005, 0xd00a8005, 0xd00a8009},
         {0x00009820, 0x206a022e, 0x206a022e, 0x206a012e, 0x206a01ae},
         {0x00009824, 0x5ac640d0, 0x5ac640d0, 0x5ac640d0, 0x63c640da},
         {0x00009828, 0x06903081, 0x06903081, 0x06903881, 0x09143c81},
@@ -345,9 +345,9 @@ static const u32 ar9565_1p0_baseband_postamble[][5] = {
         {0x00009830, 0x0000059c, 0x0000059c, 0x0000059c, 0x0000059c},
         {0x00009c00, 0x000000c4, 0x000000c4, 0x000000c4, 0x000000c4},
         {0x00009e00, 0x0372111a, 0x0372111a, 0x037216a0, 0x037216a0},
-        {0x00009e04, 0x00802020, 0x00802020, 0x00802020, 0x00802020},
-        {0x00009e0c, 0x6c4000e2, 0x6d4000e2, 0x6d4000e2, 0x6c4000d8},
-        {0x00009e10, 0x7ec88d2e, 0x7ec88d2e, 0x7ec84d2e, 0x7ec86d2e},
+        {0x00009e04, 0x00802020, 0x00802020, 0x00142020, 0x00142020},
+        {0x00009e0c, 0x6c4000e2, 0x6d4000e2, 0x6d4000e2, 0x6c4000e2},
+        {0x00009e10, 0x7ec88d2e, 0x7ec88d2e, 0x7ec84d2e, 0x7ec84d2e},
         {0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3379605e, 0x33795d5e},
         {0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
@@ -450,6 +450,8 @@ static const u32 ar9565_1p0_soc_postamble[][5] = {
 
 static const u32 ar9565_1p0_Common_rx_gain_table[][2] = {
         /* Addr      allmodes  */
+        {0x00004050, 0x00300300},
+        {0x0000406c, 0x00100000},
         {0x0000a000, 0x00010000},
         {0x0000a004, 0x00030002},
         {0x0000a008, 0x00050004},
@@ -498,27 +500,27 @@ static const u32 ar9565_1p0_Common_rx_gain_table[][2] = {
         {0x0000a0b4, 0x00000000},
         {0x0000a0b8, 0x00000000},
         {0x0000a0bc, 0x00000000},
-        {0x0000a0c0, 0x001f0000},
-        {0x0000a0c4, 0x01000101},
-        {0x0000a0c8, 0x011e011f},
-        {0x0000a0cc, 0x011c011d},
-        {0x0000a0d0, 0x02030204},
-        {0x0000a0d4, 0x02010202},
-        {0x0000a0d8, 0x021f0200},
-        {0x0000a0dc, 0x0302021e},
-        {0x0000a0e0, 0x03000301},
-        {0x0000a0e4, 0x031e031f},
-        {0x0000a0e8, 0x0402031d},
-        {0x0000a0ec, 0x04000401},
-        {0x0000a0f0, 0x041e041f},
-        {0x0000a0f4, 0x0502041d},
-        {0x0000a0f8, 0x05000501},
-        {0x0000a0fc, 0x051e051f},
-        {0x0000a100, 0x06010602},
-        {0x0000a104, 0x061f0600},
-        {0x0000a108, 0x061d061e},
-        {0x0000a10c, 0x07020703},
-        {0x0000a110, 0x07000701},
+        {0x0000a0c0, 0x00bf00a0},
+        {0x0000a0c4, 0x11a011a1},
+        {0x0000a0c8, 0x11be11bf},
+        {0x0000a0cc, 0x11bc11bd},
+        {0x0000a0d0, 0x22632264},
+        {0x0000a0d4, 0x22612262},
+        {0x0000a0d8, 0x227f2260},
+        {0x0000a0dc, 0x4322227e},
+        {0x0000a0e0, 0x43204321},
+        {0x0000a0e4, 0x433e433f},
+        {0x0000a0e8, 0x4462433d},
+        {0x0000a0ec, 0x44604461},
+        {0x0000a0f0, 0x447e447f},
+        {0x0000a0f4, 0x5582447d},
+        {0x0000a0f8, 0x55805581},
+        {0x0000a0fc, 0x559e559f},
+        {0x0000a100, 0x66816682},
+        {0x0000a104, 0x669f6680},
+        {0x0000a108, 0x669d669e},
+        {0x0000a10c, 0x77627763},
+        {0x0000a110, 0x77607761},
         {0x0000a114, 0x00000000},
         {0x0000a118, 0x00000000},
         {0x0000a11c, 0x00000000},
@@ -530,27 +532,27 @@ static const u32 ar9565_1p0_Common_rx_gain_table[][2] = {
         {0x0000a134, 0x00000000},
         {0x0000a138, 0x00000000},
         {0x0000a13c, 0x00000000},
-        {0x0000a140, 0x001f0000},
-        {0x0000a144, 0x01000101},
-        {0x0000a148, 0x011e011f},
-        {0x0000a14c, 0x011c011d},
-        {0x0000a150, 0x02030204},
-        {0x0000a154, 0x02010202},
-        {0x0000a158, 0x021f0200},
-        {0x0000a15c, 0x0302021e},
-        {0x0000a160, 0x03000301},
-        {0x0000a164, 0x031e031f},
-        {0x0000a168, 0x0402031d},
-        {0x0000a16c, 0x04000401},
-        {0x0000a170, 0x041e041f},
-        {0x0000a174, 0x0502041d},
-        {0x0000a178, 0x05000501},
-        {0x0000a17c, 0x051e051f},
-        {0x0000a180, 0x06010602},
-        {0x0000a184, 0x061f0600},
-        {0x0000a188, 0x061d061e},
-        {0x0000a18c, 0x07020703},
-        {0x0000a190, 0x07000701},
+        {0x0000a140, 0x00bf00a0},
+        {0x0000a144, 0x11a011a1},
+        {0x0000a148, 0x11be11bf},
+        {0x0000a14c, 0x11bc11bd},
+        {0x0000a150, 0x22632264},
+        {0x0000a154, 0x22612262},
+        {0x0000a158, 0x227f2260},
+        {0x0000a15c, 0x4322227e},
+        {0x0000a160, 0x43204321},
+        {0x0000a164, 0x433e433f},
+        {0x0000a168, 0x4462433d},
+        {0x0000a16c, 0x44604461},
+        {0x0000a170, 0x447e447f},
+        {0x0000a174, 0x5582447d},
+        {0x0000a178, 0x55805581},
+        {0x0000a17c, 0x559e559f},
+        {0x0000a180, 0x66816682},
+        {0x0000a184, 0x669f6680},
+        {0x0000a188, 0x669d669e},
+        {0x0000a18c, 0x77e677e7},
+        {0x0000a190, 0x77e477e5},
         {0x0000a194, 0x00000000},
         {0x0000a198, 0x00000000},
         {0x0000a19c, 0x00000000},
@@ -770,7 +772,7 @@ static const u32 ar9565_1p0_Modes_lowest_ob_db_tx_gain_table[][5] = {
 
 static const u32 ar9565_1p0_pciephy_clkreq_disable_L1[][2] = {
         /* Addr      allmodes  */
-        {0x00018c00, 0x18213ede},
+        {0x00018c00, 0x18212ede},
         {0x00018c04, 0x000801d8},
         {0x00018c08, 0x0003780c},
 };
@@ -889,8 +891,8 @@ static const u32 ar9565_1p0_common_wo_xlna_rx_gain_table[][2] = {
         {0x0000a180, 0x66816682},
         {0x0000a184, 0x669f6680},
         {0x0000a188, 0x669d669e},
-        {0x0000a18c, 0x77627763},
-        {0x0000a190, 0x77607761},
+        {0x0000a18c, 0x77e677e7},
+        {0x0000a190, 0x77e477e5},
         {0x0000a194, 0x00000000},
         {0x0000a198, 0x00000000},
         {0x0000a19c, 0x00000000},
@@ -1114,7 +1116,7 @@ static const u32 ar9565_1p0_modes_high_ob_db_tx_gain_table[][5] = {
         {0x0000a2e0, 0xffecec00, 0xffecec00, 0xfd339c84, 0xfd339c84},
         {0x0000a2e4, 0xfc0f0000, 0xfc0f0000, 0xfec3e000, 0xfec3e000},
         {0x0000a2e8, 0xfc100000, 0xfc100000, 0xfffc0000, 0xfffc0000},
-        {0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
+        {0x0000a410, 0x000050d9, 0x000050d9, 0x000050df, 0x000050df},
         {0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
         {0x0000a504, 0x06002223, 0x06002223, 0x04000002, 0x04000002},
         {0x0000a508, 0x0b022220, 0x0b022220, 0x08000004, 0x08000004},
@@ -1140,13 +1142,13 @@ static const u32 ar9565_1p0_modes_high_ob_db_tx_gain_table[][5] = {
         {0x0000a558, 0x69027f56, 0x69027f56, 0x53001ce5, 0x53001ce5},
         {0x0000a55c, 0x6d029f56, 0x6d029f56, 0x57001ce9, 0x57001ce9},
         {0x0000a560, 0x73049f56, 0x73049f56, 0x5b001ceb, 0x5b001ceb},
-        {0x0000a564, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
-        {0x0000a568, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
-        {0x0000a56c, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
-        {0x0000a570, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
-        {0x0000a574, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
-        {0x0000a578, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
-        {0x0000a57c, 0x7804ff56, 0x7804ff56, 0x5d001eec, 0x5d001eec},
+        {0x0000a564, 0x7804ff56, 0x7804ff56, 0x60001cf0, 0x60001cf0},
+        {0x0000a568, 0x7804ff56, 0x7804ff56, 0x61001cf1, 0x61001cf1},
+        {0x0000a56c, 0x7804ff56, 0x7804ff56, 0x62001cf2, 0x62001cf2},
+        {0x0000a570, 0x7804ff56, 0x7804ff56, 0x63001cf3, 0x63001cf3},
+        {0x0000a574, 0x7804ff56, 0x7804ff56, 0x64001cf4, 0x64001cf4},
+        {0x0000a578, 0x7804ff56, 0x7804ff56, 0x66001ff6, 0x66001ff6},
+        {0x0000a57c, 0x7804ff56, 0x7804ff56, 0x66001ff6, 0x66001ff6},
         {0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
@@ -1174,7 +1176,7 @@ static const u32 ar9565_1p0_modes_high_power_tx_gain_table[][5] = {
         {0x0000a2e0, 0xffecec00, 0xffecec00, 0xfd339c84, 0xfd339c84},
         {0x0000a2e4, 0xfc0f0000, 0xfc0f0000, 0xfec3e000, 0xfec3e000},
         {0x0000a2e8, 0xfc100000, 0xfc100000, 0xfffc0000, 0xfffc0000},
-        {0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
+        {0x0000a410, 0x000050d9, 0x000050d9, 0x000050df, 0x000050df},
         {0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
         {0x0000a504, 0x06002223, 0x06002223, 0x04000002, 0x04000002},
         {0x0000a508, 0x0a022220, 0x0a022220, 0x08000004, 0x08000004},
@@ -1200,13 +1202,13 @@ static const u32 ar9565_1p0_modes_high_power_tx_gain_table[][5] = {
         {0x0000a558, 0x66027f56, 0x66027f56, 0x4c001ce5, 0x4c001ce5},
         {0x0000a55c, 0x6a029f56, 0x6a029f56, 0x50001ce9, 0x50001ce9},
         {0x0000a560, 0x70049f56, 0x70049f56, 0x54001ceb, 0x54001ceb},
-        {0x0000a564, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
-        {0x0000a568, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
-        {0x0000a56c, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
-        {0x0000a570, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
-        {0x0000a574, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
-        {0x0000a578, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
-        {0x0000a57c, 0x7504ff56, 0x7504ff56, 0x56001eec, 0x56001eec},
+        {0x0000a564, 0x7504ff56, 0x7504ff56, 0x59001cf0, 0x59001cf0},
+        {0x0000a568, 0x7504ff56, 0x7504ff56, 0x5a001cf1, 0x5a001cf1},
+        {0x0000a56c, 0x7504ff56, 0x7504ff56, 0x5b001cf2, 0x5b001cf2},
+        {0x0000a570, 0x7504ff56, 0x7504ff56, 0x5c001cf3, 0x5c001cf3},
+        {0x0000a574, 0x7504ff56, 0x7504ff56, 0x5d001cf4, 0x5d001cf4},
+        {0x0000a578, 0x7504ff56, 0x7504ff56, 0x5f001ff6, 0x5f001ff6},
+        {0x0000a57c, 0x7504ff56, 0x7504ff56, 0x5f001ff6, 0x5f001ff6},
         {0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 8a1888d02070..366002f266f8 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -254,6 +254,7 @@ struct ath_atx_tid {
         int sched;
         int paused;
         u8 state;
+        bool stop_cb;
 };
 
 struct ath_node {
@@ -351,7 +352,8 @@ void ath_tx_tasklet(struct ath_softc *sc);
 void ath_tx_edma_tasklet(struct ath_softc *sc);
 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
                       u16 tid, u16 *ssn);
-void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
+bool ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid,
+                      bool flush);
 void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
 
 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index e6307b86363a..b37eb8d38811 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -2008,6 +2008,14 @@ void ath9k_get_et_stats(struct ieee80211_hw *hw,
         WARN_ON(i != ATH9K_SSTATS_LEN);
 }
 
+void ath9k_deinit_debug(struct ath_softc *sc)
+{
+        if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
+                relay_close(sc->rfs_chan_spec_scan);
+                sc->rfs_chan_spec_scan = NULL;
+        }
+}
+
 int ath9k_init_debug(struct ath_hw *ah)
 {
         struct ath_common *common = ath9k_hw_common(ah);
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 794a7ec83a24..9d49aab8b989 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -304,6 +304,7 @@ struct ath9k_debug {
 };
 
 int ath9k_init_debug(struct ath_hw *ah);
+void ath9k_deinit_debug(struct ath_softc *sc);
 
 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
@@ -339,6 +340,10 @@ static inline int ath9k_init_debug(struct ath_hw *ah)
         return 0;
 }
 
+static inline void ath9k_deinit_debug(struct ath_softc *sc)
+{
+}
+
 static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
                                             enum ath9k_int status)
 {
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 0237b2868961..aba415103f94 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -906,7 +906,7 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc,
         if (!ath_is_world_regd(reg)) {
                 error = regulatory_hint(hw->wiphy, reg->alpha2);
                 if (error)
-                        goto unregister;
+                        goto debug_cleanup;
         }
 
         ath_init_leds(sc);
@@ -914,6 +914,8 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc,
 
         return 0;
 
+debug_cleanup:
+        ath9k_deinit_debug(sc);
 unregister:
         ieee80211_unregister_hw(hw);
 rx_cleanup:
@@ -942,11 +944,6 @@ static void ath9k_deinit_softc(struct ath_softc *sc)
                 sc->dfs_detector->exit(sc->dfs_detector);
 
         ath9k_eeprom_release(sc);
-
-        if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
-                relay_close(sc->rfs_chan_spec_scan);
-                sc->rfs_chan_spec_scan = NULL;
-        }
 }
 
 void ath9k_deinit_device(struct ath_softc *sc)
@@ -960,6 +957,7 @@ void ath9k_deinit_device(struct ath_softc *sc)
 
         ath9k_ps_restore(sc);
 
+        ath9k_deinit_debug(sc);
         ieee80211_unregister_hw(hw);
         ath_rx_cleanup(sc);
         ath9k_deinit_softc(sc);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 6963862a1872..2382d1262e7f 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -227,13 +227,13 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
                 if (!test_bit(SC_OP_BEACONS, &sc->sc_flags))
                         goto work;
 
-                ath9k_set_beacon(sc);
-
                 if (ah->opmode == NL80211_IFTYPE_STATION &&
                     test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) {
                         spin_lock_irqsave(&sc->sc_pm_lock, flags);
                         sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON;
                         spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
+                } else {
+                        ath9k_set_beacon(sc);
                 }
         work:
                 ath_restart_work(sc);
@@ -1332,6 +1332,7 @@ static int ath9k_sta_add(struct ieee80211_hw *hw,
         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
         struct ath_node *an = (struct ath_node *) sta->drv_priv;
         struct ieee80211_key_conf ps_key = { };
+        int key;
 
         ath_node_attach(sc, sta, vif);
 
@@ -1339,7 +1340,9 @@ static int ath9k_sta_add(struct ieee80211_hw *hw,
             vif->type != NL80211_IFTYPE_AP_VLAN)
                 return 0;
 
-        an->ps_key = ath_key_config(common, vif, sta, &ps_key);
+        key = ath_key_config(common, vif, sta, &ps_key);
+        if (key > 0)
+                an->ps_key = key;
 
         return 0;
 }
@@ -1356,6 +1359,7 @@ static void ath9k_del_ps_key(struct ath_softc *sc,
             return;
 
         ath_key_delete(common, &ps_key);
+        an->ps_key = 0;
 }
 
 static int ath9k_sta_remove(struct ieee80211_hw *hw,
@@ -1683,6 +1687,7 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
                               u16 tid, u16 *ssn, u8 buf_size)
 {
         struct ath_softc *sc = hw->priv;
+        bool flush = false;
         int ret = 0;
 
         local_bh_disable();
@@ -1699,12 +1704,13 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
                         ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
                 ath9k_ps_restore(sc);
                 break;
-        case IEEE80211_AMPDU_TX_STOP_CONT:
         case IEEE80211_AMPDU_TX_STOP_FLUSH:
         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+                flush = true;
+        case IEEE80211_AMPDU_TX_STOP_CONT:
                 ath9k_ps_wakeup(sc);
-                ath_tx_aggr_stop(sc, sta, tid);
-                ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+                if (ath_tx_aggr_stop(sc, sta, tid, flush))
+                        ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
                 ath9k_ps_restore(sc);
                 break;
         case IEEE80211_AMPDU_TX_OPERATIONAL:
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index eab0fcb7ded6..14bb3354ea64 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -164,7 +164,20 @@ static void ath_set_rates(struct ieee80211_vif *vif, struct ieee80211_sta *sta,
                                ARRAY_SIZE(bf->rates));
 }
 
-static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
+static void ath_tx_clear_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
+{
+        tid->state &= ~AGGR_ADDBA_COMPLETE;
+        tid->state &= ~AGGR_CLEANUP;
+        if (!tid->stop_cb)
+                return;
+
+        ieee80211_start_tx_ba_cb_irqsafe(tid->an->vif, tid->an->sta->addr,
+                                         tid->tidno);
+        tid->stop_cb = false;
+}
+
+static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid,
+                             bool flush_packets)
 {
         struct ath_txq *txq = tid->ac->txq;
         struct sk_buff *skb;
@@ -181,16 +194,15 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
         while ((skb = __skb_dequeue(&tid->buf_q))) {
                 fi = get_frame_info(skb);
                 bf = fi->bf;
+                if (!bf && !flush_packets)
+                        bf = ath_tx_setup_buffer(sc, txq, tid, skb);
 
                 if (!bf) {
-                        bf = ath_tx_setup_buffer(sc, txq, tid, skb);
-                        if (!bf) {
-                                ieee80211_free_txskb(sc->hw, skb);
-                                continue;
-                        }
+                        ieee80211_free_txskb(sc->hw, skb);
+                        continue;
                 }
 
-                if (fi->retries) {
+                if (fi->retries || flush_packets) {
                         list_add_tail(&bf->list, &bf_head);
                         ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
                         ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
@@ -201,12 +213,10 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
                 }
         }
 
-        if (tid->baw_head == tid->baw_tail) {
-                tid->state &= ~AGGR_ADDBA_COMPLETE;
-                tid->state &= ~AGGR_CLEANUP;
-        }
+        if (tid->baw_head == tid->baw_tail)
+                ath_tx_clear_tid(sc, tid);
 
-        if (sendbar) {
+        if (sendbar && !flush_packets) {
                 ath_txq_unlock(sc, txq);
                 ath_send_bar(tid, tid->seq_start);
                 ath_txq_lock(sc, txq);
@@ -277,9 +287,7 @@ static void ath_tid_drain(struct ath_softc *sc, struct ath_txq *txq,
 
                 list_add_tail(&bf->list, &bf_head);
 
-                if (fi->retries)
-                        ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
-
+                ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
                 ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
         }
 
@@ -602,7 +610,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
         }
 
         if (tid->state & AGGR_CLEANUP)
-                ath_tx_flush_tid(sc, tid);
+                ath_tx_flush_tid(sc, tid, false);
 
         rcu_read_unlock();
 
@@ -620,6 +628,7 @@ static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
                                   struct ath_tx_status *ts, struct ath_buf *bf,
                                   struct list_head *bf_head)
 {
+        struct ieee80211_tx_info *info;
         bool txok, flush;
 
         txok = !(ts->ts_status & ATH9K_TXERR_MASK);
@@ -631,8 +640,12 @@ static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
                 txq->axq_ampdu_depth--;
 
         if (!bf_isampdu(bf)) {
-                if (!flush)
+                if (!flush) {
+                        info = IEEE80211_SKB_CB(bf->bf_mpdu);
+                        memcpy(info->control.rates, bf->rates,
+                               sizeof(info->control.rates));
                         ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok);
+                }
                 ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok);
         } else
                 ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
@@ -676,7 +689,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
 
         skb = bf->bf_mpdu;
         tx_info = IEEE80211_SKB_CB(skb);
-        rates = tx_info->control.rates;
+        rates = bf->rates;
 
         /*
          * Find the lowest frame length among the rate series that will have a
@@ -1256,18 +1269,23 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
         return 0;
 }
 
-void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
+bool ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid,
+                      bool flush)
 {
         struct ath_node *an = (struct ath_node *)sta->drv_priv;
         struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
         struct ath_txq *txq = txtid->ac->txq;
+        bool ret = !flush;
+
+        if (flush)
+                txtid->stop_cb = false;
 
         if (txtid->state & AGGR_CLEANUP)
-                return;
+                return false;
 
         if (!(txtid->state & AGGR_ADDBA_COMPLETE)) {
                 txtid->state &= ~AGGR_ADDBA_PROGRESS;
-                return;
+                return ret;
         }
 
         ath_txq_lock(sc, txq);
@@ -1279,13 +1297,17 @@ void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
          * TID can only be reused after all in-progress subframes have been
          * completed.
          */
-        if (txtid->baw_head != txtid->baw_tail)
+        if (txtid->baw_head != txtid->baw_tail) {
                 txtid->state |= AGGR_CLEANUP;
-        else
+                ret = false;
+                txtid->stop_cb = !flush;
+        } else {
                 txtid->state &= ~AGGR_ADDBA_COMPLETE;
+        }
 
-        ath_tx_flush_tid(sc, txtid);
+        ath_tx_flush_tid(sc, txtid, flush);
         ath_txq_unlock_complete(sc, txq);
+        return ret;
 }
 
 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
@@ -2415,6 +2437,7 @@ void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an)
                 tid->ac = &an->ac[acno];
                 tid->state &= ~AGGR_ADDBA_COMPLETE;
                 tid->state &= ~AGGR_ADDBA_PROGRESS;
+                tid->stop_cb = false;
         }
 
         for (acno = 0, ac = &an->ac[acno];
@@ -2451,8 +2474,7 @@ void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an)
                 }
 
                 ath_tid_drain(sc, txq, tid);
-                tid->state &= ~AGGR_ADDBA_COMPLETE;
-                tid->state &= ~AGGR_CLEANUP;
+                ath_tx_clear_tid(sc, tid);
 
                 ath_txq_unlock(sc, txq);
         }
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index 523355b87659..f7c70b3a6ea9 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -1728,6 +1728,25 @@ drop_recycle_buffer:
         sync_descbuffer_for_device(ring, dmaaddr, ring->rx_buffersize);
 }
 
+void b43_dma_handle_rx_overflow(struct b43_dmaring *ring)
+{
+        int current_slot, previous_slot;
+
+        B43_WARN_ON(ring->tx);
+
+        /* Device has filled all buffers, drop all packets and let TCP
+         * decrease speed.
+         * Decrement RX index by one will let the device to see all slots
+         * as free again
+         */
+        /*
+        *TODO: How to increase rx_drop in mac80211?
+        */
+        current_slot = ring->ops->get_current_rxslot(ring);
+        previous_slot = prev_slot(ring, current_slot);
+        ring->ops->set_current_rxslot(ring, previous_slot);
+}
+
 void b43_dma_rx(struct b43_dmaring *ring)
 {
         const struct b43_dma_ops *ops = ring->ops;
diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h
index 9fdd1983079c..df8c8cdcbdb5 100644
--- a/drivers/net/wireless/b43/dma.h
+++ b/drivers/net/wireless/b43/dma.h
@@ -9,7 +9,7 @@
 /* DMA-Interrupt reasons. */
 #define B43_DMAIRQ_FATALMASK    ((1 << 10) | (1 << 11) | (1 << 12) \
                                          | (1 << 14) | (1 << 15))
-#define B43_DMAIRQ_NONFATALMASK (1 << 13)
+#define B43_DMAIRQ_RDESC_UFLOW          (1 << 13)
 #define B43_DMAIRQ_RX_DONE              (1 << 16)
 
 /*** 32-bit DMA Engine. ***/
@@ -295,6 +295,8 @@ int b43_dma_tx(struct b43_wldev *dev,
 void b43_dma_handle_txstatus(struct b43_wldev *dev,
                              const struct b43_txstatus *status);
 
+void b43_dma_handle_rx_overflow(struct b43_dmaring *ring);
+
 void b43_dma_rx(struct b43_dmaring *ring);
 
 void b43_dma_direct_fifo_rx(struct b43_wldev *dev,
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index d377f77d30b5..6dd07e2ec595 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -1902,30 +1902,18 @@ static void b43_do_interrupt_thread(struct b43_wldev *dev)
                 }
         }
 
-        if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
-                                          B43_DMAIRQ_NONFATALMASK))) {
-                if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
-                        b43err(dev->wl, "Fatal DMA error: "
-                               "0x%08X, 0x%08X, 0x%08X, "
-                               "0x%08X, 0x%08X, 0x%08X\n",
-                               dma_reason[0], dma_reason[1],
-                               dma_reason[2], dma_reason[3],
-                               dma_reason[4], dma_reason[5]);
-                        b43err(dev->wl, "This device does not support DMA "
+        if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK))) {
+                b43err(dev->wl,
+                        "Fatal DMA error: 0x%08X, 0x%08X, 0x%08X, 0x%08X, 0x%08X, 0x%08X\n",
+                        dma_reason[0], dma_reason[1],
+                        dma_reason[2], dma_reason[3],
+                        dma_reason[4], dma_reason[5]);
+                b43err(dev->wl, "This device does not support DMA "
                                "on your system. It will now be switched to PIO.\n");
-                        /* Fall back to PIO transfers if we get fatal DMA errors! */
-                        dev->use_pio = true;
-                        b43_controller_restart(dev, "DMA error");
-                        return;
-                }
-                if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
-                        b43err(dev->wl, "DMA error: "
-                               "0x%08X, 0x%08X, 0x%08X, "
-                               "0x%08X, 0x%08X, 0x%08X\n",
-                               dma_reason[0], dma_reason[1],
-                               dma_reason[2], dma_reason[3],
-                               dma_reason[4], dma_reason[5]);
-                }
+                /* Fall back to PIO transfers if we get fatal DMA errors! */
+                dev->use_pio = true;
+                b43_controller_restart(dev, "DMA error");
+                return;
         }
 
         if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
@@ -1944,6 +1932,11 @@ static void b43_do_interrupt_thread(struct b43_wldev *dev)
                 handle_irq_noise(dev);
 
         /* Check the DMA reason registers for received data. */
+        if (dma_reason[0] & B43_DMAIRQ_RDESC_UFLOW) {
+                if (B43_DEBUG)
+                        b43warn(dev->wl, "RX descriptor underrun\n");
+                b43_dma_handle_rx_overflow(dev->dma.rx_ring);
+        }
         if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
                 if (b43_using_pio_transfers(dev))
                         b43_pio_rx(dev->pio.rx_queue);
@@ -2001,7 +1994,7 @@ static irqreturn_t b43_do_interrupt(struct b43_wldev *dev)
                 return IRQ_NONE;
 
         dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
-            & 0x0001DC00;
+            & 0x0001FC00;
         dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
             & 0x0000DC00;
         dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
@@ -3130,7 +3123,7 @@ static int b43_chip_init(struct b43_wldev *dev)
                 b43_write32(dev, 0x018C, 0x02000000);
         }
         b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
-        b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
+        b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001FC00);
         b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
         b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
         b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 6d758f285352..761f501959a9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -4140,6 +4140,10 @@ static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
                 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
                          BIT(NL80211_IFTYPE_P2P_GO)
         },
+        {
+                .max = 1,
+                .types = BIT(NL80211_IFTYPE_P2P_DEVICE)
+        }
 };
 static const struct ieee80211_iface_combination brcmf_iface_combos[] = {
         {
@@ -4197,7 +4201,8 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
                                  BIT(NL80211_IFTYPE_ADHOC) |
                                  BIT(NL80211_IFTYPE_AP) |
                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
-                                 BIT(NL80211_IFTYPE_P2P_GO);
+                                 BIT(NL80211_IFTYPE_P2P_GO) |
+                                 BIT(NL80211_IFTYPE_P2P_DEVICE);
         wiphy->iface_combinations = brcmf_iface_combos;
         wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
         wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index b8f82e688c72..9a95045c97b6 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -5741,8 +5741,7 @@ il4965_mac_setup_register(struct il_priv *il, u32 max_probe_length)
         hw->flags =
             IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_AMPDU_AGGREGATION |
             IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC | IEEE80211_HW_SPECTRUM_MGMT |
-            IEEE80211_HW_REPORTS_TX_ACK_STATUS | IEEE80211_HW_SUPPORTS_PS |
-            IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
+            IEEE80211_HW_SUPPORTS_PS | IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
         if (il->cfg->sku & IL_SKU_N)
                 hw->flags |=
                     IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index 592d0aa634a8..e9a3cbc409ae 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -1423,7 +1423,7 @@ il_setup_rx_scan_handlers(struct il_priv *il)
 }
 EXPORT_SYMBOL(il_setup_rx_scan_handlers);
 
-inline u16
+u16
 il_get_active_dwell_time(struct il_priv *il, enum ieee80211_band band,
                          u8 n_probes)
 {
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 191dcae8ba47..c6384555aab4 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -173,6 +173,8 @@ enum {
         REPLY_DEBUG_CMD = 0xf0,
         DEBUG_LOG_MSG = 0xf7,
 
+        MCAST_FILTER_CMD = 0xd0,
+
         /* D3 commands/notifications */
         D3_CONFIG_CMD = 0xd3,
         PROT_OFFLOAD_CONFIG_CMD = 0xd4,
@@ -948,4 +950,29 @@ struct iwl_set_calib_default_cmd {
         u8 data[0];
 } __packed; /* PHY_CALIB_OVERRIDE_VALUES_S */
 
+#define MAX_PORT_ID_NUM 2
+
+/**
+ * struct iwl_mcast_filter_cmd - configure multicast filter.
+ * @filter_own: Set 1 to filter out multicast packets sent by station itself
+ * @port_id:    Multicast MAC addresses array specifier. This is a strange way
+ *              to identify network interface adopted in host-device IF.
+ *              It is used by FW as index in array of addresses. This array has
+ *              MAX_PORT_ID_NUM members.
+ * @count:      Number of MAC addresses in the array
+ * @pass_all:   Set 1 to pass all multicast packets.
+ * @bssid:      current association BSSID.
+ * @addr_list:  Place holder for array of MAC addresses.
+ *              IMPORTANT: add padding if necessary to ensure DWORD alignment.
+ */
+struct iwl_mcast_filter_cmd {
+        u8 filter_own;
+        u8 port_id;
+        u8 count;
+        u8 pass_all;
+        u8 bssid[6];
+        u8 reserved[2];
+        u8 addr_list[0];
+} __packed; /* MCAST_FILTERING_CMD_API_S_VER_1 */
+
 #endif /* __fw_api_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index e6eca4d66f6c..b2cc3d98e0f7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -586,10 +586,12 @@ static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm,
  */
 static void iwl_mvm_mac_ctxt_cmd_fill_sta(struct iwl_mvm *mvm,
                                           struct ieee80211_vif *vif,
-                                          struct iwl_mac_data_sta *ctxt_sta)
+                                          struct iwl_mac_data_sta *ctxt_sta,
+                                          bool force_assoc_off)
 {
         /* We need the dtim_period to set the MAC as associated */
-        if (vif->bss_conf.assoc && vif->bss_conf.dtim_period) {
+        if (vif->bss_conf.assoc && vif->bss_conf.dtim_period &&
+            !force_assoc_off) {
                 u32 dtim_offs;
 
                 /*
@@ -659,7 +661,8 @@ static int iwl_mvm_mac_ctxt_cmd_station(struct iwl_mvm *mvm,
                 cmd.filter_flags &= ~cpu_to_le32(MAC_FILTER_IN_BEACON);
 
         /* Fill the data specific for station mode */
-        iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta);
+        iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta,
+                                      action == FW_CTXT_ACTION_ADD);
 
         return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 }
@@ -677,7 +680,8 @@ static int iwl_mvm_mac_ctxt_cmd_p2p_client(struct iwl_mvm *mvm,
         iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
 
         /* Fill the data specific for station mode */
-        iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta);
+        iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta,
+                                      action == FW_CTXT_ACTION_ADD);
 
         cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow &
                                         IEEE80211_P2P_OPPPS_CTWINDOW_MASK);
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index dd158ec571fb..a5eb8c82f16a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -701,6 +701,20 @@ static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
         *total_flags = 0;
 }
 
+static int iwl_mvm_configure_mcast_filter(struct iwl_mvm *mvm,
+                                          struct ieee80211_vif *vif)
+{
+        struct iwl_mcast_filter_cmd mcast_filter_cmd = {
+                .pass_all = 1,
+        };
+
+        memcpy(mcast_filter_cmd.bssid, vif->bss_conf.bssid, ETH_ALEN);
+
+        return iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC,
+                                    sizeof(mcast_filter_cmd),
+                                    &mcast_filter_cmd);
+}
+
 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
                                              struct ieee80211_vif *vif,
                                              struct ieee80211_bss_conf *bss_conf,
@@ -722,6 +736,7 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
                                 return;
                         }
                         iwl_mvm_bt_coex_vif_assoc(mvm, vif);
+                        iwl_mvm_configure_mcast_filter(mvm, vif);
                 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
                         /* remove AP station now that the MAC is unassoc */
                         ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
@@ -931,7 +946,7 @@ static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
 
         switch (cmd) {
         case STA_NOTIFY_SLEEP:
-                if (atomic_read(&mvmsta->pending_frames) > 0)
+                if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
                         ieee80211_sta_block_awake(hw, sta, true);
                 /*
                  * The fw updates the STA to be asleep. Tx packets on the Tx
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 8269bc562951..9f46b23801bc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -292,6 +292,7 @@ struct iwl_mvm {
         struct ieee80211_sta __rcu *fw_id_to_mac_id[IWL_MVM_STATION_COUNT];
         struct work_struct sta_drained_wk;
         unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];
+        atomic_t pending_frames[IWL_MVM_STATION_COUNT];
 
         /* configured by mac80211 */
         u32 rts_threshold;
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index fe031d304d1e..b29c31a41594 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -292,6 +292,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
         CMD(BT_COEX_PROT_ENV),
         CMD(BT_PROFILE_NOTIFICATION),
         CMD(BT_CONFIG),
+        CMD(MCAST_FILTER_CMD),
 };
 #undef CMD
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 2157b0f8ced5..2476e43799d5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -298,6 +298,12 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
         else
                 cmd->type = cpu_to_le32(SCAN_TYPE_FORCED);
 
+        /*
+         * TODO: This is a WA due to a bug in the FW AUX framework that does not
+         * properly handle time events that fail to be scheduled
+         */
+        cmd->type = cpu_to_le32(SCAN_TYPE_FORCED);
+
         cmd->repeats = cpu_to_le32(1);
 
         /*
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index 0fd96e4da461..5c664ed54400 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -219,7 +219,7 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm,
         mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
 
         /* HW restart, don't assume the memory has been zeroed */
-        atomic_set(&mvm_sta->pending_frames, 0);
+        atomic_set(&mvm->pending_frames[sta_id], 0);
         mvm_sta->tid_disable_agg = 0;
         mvm_sta->tfd_queue_msk = 0;
         for (i = 0; i < IEEE80211_NUM_ACS; i++)
@@ -407,14 +407,21 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
         }
 
         /*
+         * Make sure that the tx response code sees the station as -EBUSY and
+         * calls the drain worker.
+         */
+        spin_lock_bh(&mvm_sta->lock);
+        /*
          * There are frames pending on the AC queues for this station.
          * We need to wait until all the frames are drained...
          */
-        if (atomic_read(&mvm_sta->pending_frames)) {
-                ret = iwl_mvm_drain_sta(mvm, mvm_sta, true);
+        if (atomic_read(&mvm->pending_frames[mvm_sta->sta_id])) {
                 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
                                    ERR_PTR(-EBUSY));
+                spin_unlock_bh(&mvm_sta->lock);
+                ret = iwl_mvm_drain_sta(mvm, mvm_sta, true);
         } else {
+                spin_unlock_bh(&mvm_sta->lock);
                 ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id);
                 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL);
         }
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h
index 12abd2d71835..a4ddce77aaae 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.h
@@ -274,7 +274,6 @@ struct iwl_mvm_tid_data {
  * @bt_reduced_txpower: is reduced tx power enabled for this station
  * @lock: lock to protect the whole struct. Since %tid_data is access from Tx
  * and from Tx response flow, it needs a spinlock.
- * @pending_frames: number of frames for this STA on the shared Tx queues.
  * @tid_data: per tid data. Look at %iwl_mvm_tid_data.
  *
  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
@@ -290,7 +289,6 @@ struct iwl_mvm_sta {
         u8 max_agg_bufsize;
         bool bt_reduced_txpower;
         spinlock_t lock;
-        atomic_t pending_frames;
         struct iwl_mvm_tid_data tid_data[IWL_MAX_TID_COUNT];
         struct iwl_lq_sta lq_sta;
         struct ieee80211_vif *vif;
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 479074303bd7..f212f16502ff 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -416,9 +416,8 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
 
         spin_unlock(&mvmsta->lock);
 
-        if (mvmsta->vif->type == NL80211_IFTYPE_AP &&
-            txq_id < IWL_MVM_FIRST_AGG_QUEUE)
-                atomic_inc(&mvmsta->pending_frames);
+        if (txq_id < IWL_MVM_FIRST_AGG_QUEUE)
+                atomic_inc(&mvm->pending_frames[mvmsta->sta_id]);
 
         return 0;
 
@@ -680,16 +679,41 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
         /*
          * If the txq is not an AMPDU queue, there is no chance we freed
          * several skbs. Check that out...
-         * If there are no pending frames for this STA, notify mac80211 that
-         * this station can go to sleep in its STA table.
          */
-        if (txq_id < IWL_MVM_FIRST_AGG_QUEUE && mvmsta &&
-            !WARN_ON(skb_freed > 1) &&
-            mvmsta->vif->type == NL80211_IFTYPE_AP &&
-            atomic_sub_and_test(skb_freed, &mvmsta->pending_frames)) {
-                ieee80211_sta_block_awake(mvm->hw, sta, false);
-                set_bit(sta_id, mvm->sta_drained);
-                schedule_work(&mvm->sta_drained_wk);
+        if (txq_id < IWL_MVM_FIRST_AGG_QUEUE && !WARN_ON(skb_freed > 1) &&
+            atomic_sub_and_test(skb_freed, &mvm->pending_frames[sta_id])) {
+                if (mvmsta) {
+                        /*
+                         * If there are no pending frames for this STA, notify
+                         * mac80211 that this station can go to sleep in its
+                         * STA table.
+                         */
+                        if (mvmsta->vif->type == NL80211_IFTYPE_AP)
+                                ieee80211_sta_block_awake(mvm->hw, sta, false);
+                        /*
+                         * We might very well have taken mvmsta pointer while
+                         * the station was being removed. The remove flow might
+                         * have seen a pending_frame (because we didn't take
+                         * the lock) even if now the queues are drained. So make
+                         * really sure now that this the station is not being
+                         * removed. If it is, run the drain worker to remove it.
+                         */
+                        spin_lock_bh(&mvmsta->lock);
+                        sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
+                        if (IS_ERR_OR_NULL(sta)) {
+                                /*
+                                 * Station disappeared in the meantime:
+                                 * so we are draining.
+                                 */
+                                set_bit(sta_id, mvm->sta_drained);
+                                schedule_work(&mvm->sta_drained_wk);
+                        }
+                        spin_unlock_bh(&mvmsta->lock);
+                } else if (!mvmsta) {
+                        /* Tx response without STA, so we are draining */
+                        set_bit(sta_id, mvm->sta_drained);
+                        schedule_work(&mvm->sta_drained_wk);
+                }
         }
 
         rcu_read_unlock();
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index b878a32e7a98..cb34c7895f2a 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1723,11 +1723,11 @@ static void mac80211_hwsim_free(void)
         class_destroy(hwsim_class);
 }
 
-
-static struct device_driver mac80211_hwsim_driver = {
-        .name = "mac80211_hwsim",
-        .bus = &platform_bus_type,
-        .owner = THIS_MODULE,
+static struct platform_driver mac80211_hwsim_driver = {
+        .driver = {
+                .name = "mac80211_hwsim",
+                .owner = THIS_MODULE,
+        },
 };
 
 static const struct net_device_ops hwsim_netdev_ops = {
@@ -2219,7 +2219,7 @@ static int __init init_mac80211_hwsim(void)
         spin_lock_init(&hwsim_radio_lock);
         INIT_LIST_HEAD(&hwsim_radios);
 
-        err = driver_register(&mac80211_hwsim_driver);
+        err = platform_driver_register(&mac80211_hwsim_driver);
         if (err)
                 return err;
 
@@ -2254,7 +2254,7 @@ static int __init init_mac80211_hwsim(void)
                         err = -ENOMEM;
                         goto failed_drvdata;
                 }
-                data->dev->driver = &mac80211_hwsim_driver;
+                data->dev->driver = &mac80211_hwsim_driver.driver;
                 err = device_bind_driver(data->dev);
                 if (err != 0) {
                         printk(KERN_DEBUG
@@ -2564,7 +2564,7 @@ failed_drvdata:
 failed:
         mac80211_hwsim_free();
 failed_unregister_driver:
-        driver_unregister(&mac80211_hwsim_driver);
+        platform_driver_unregister(&mac80211_hwsim_driver);
         return err;
 }
 module_init(init_mac80211_hwsim);
@@ -2577,6 +2577,6 @@ static void __exit exit_mac80211_hwsim(void)
 
         mac80211_hwsim_free();
         unregister_netdev(hwsim_mon);
-        driver_unregister(&mac80211_hwsim_driver);
+        platform_driver_unregister(&mac80211_hwsim_driver);
 }
 module_exit(exit_mac80211_hwsim);
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index d3c8ece980d8..e42b266a023a 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -2234,9 +2234,6 @@ int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
         if (wdev->netdev->reg_state == NETREG_REGISTERED)
                 unregister_netdevice(wdev->netdev);
 
-        if (wdev->netdev->reg_state == NETREG_UNREGISTERED)
-                free_netdev(wdev->netdev);
-
         /* Clear the priv in adapter */
         priv->netdev = NULL;
 
diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index 74db0d24a579..26755d9acb55 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -1191,6 +1191,7 @@ mwifiex_process_hs_config(struct mwifiex_adapter *adapter)
         adapter->if_ops.wakeup(adapter);
         adapter->hs_activated = false;
         adapter->is_hs_configured = false;
+        adapter->is_suspended = false;
         mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
                                                     MWIFIEX_BSS_ROLE_ANY),
                                    false);
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 121443a0f2a1..2eb88ea9acf7 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -655,6 +655,7 @@ void mwifiex_init_priv_params(struct mwifiex_private *priv,
                                                 struct net_device *dev)
 {
         dev->netdev_ops = &mwifiex_netdev_ops;
+        dev->destructor = free_netdev;
         /* Initialize private structure */
         priv->current_key_index = 0;
         priv->media_connected = false;
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 311d0b26b81c..1a8a19dbd635 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -96,7 +96,7 @@ int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
         } else {
                 /* Multicast */
                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
-                if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) {
+                if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
                         dev_dbg(priv->adapter->dev,
                                 "info: Enabling All Multicast!\n");
                         priv->curr_pkt_filter |=
@@ -108,20 +108,11 @@ int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
                                 dev_dbg(priv->adapter->dev,
                                         "info: Set multicast list=%d\n",
                                        mcast_list->num_multicast_addr);
-                                /* Set multicast addresses to firmware */
-                                if (old_pkt_filter == priv->curr_pkt_filter) {
-                                        /* Send request to firmware */
-                                        ret = mwifiex_send_cmd_async(priv,
-                                                HostCmd_CMD_MAC_MULTICAST_ADR,
-                                                HostCmd_ACT_GEN_SET, 0,
-                                                mcast_list);
-                                } else {
-                                        /* Send request to firmware */
-                                        ret = mwifiex_send_cmd_async(priv,
-                                                HostCmd_CMD_MAC_MULTICAST_ADR,
-                                                HostCmd_ACT_GEN_SET, 0,
-                                                mcast_list);
-                                }
+                                /* Send multicast addresses to firmware */
+                                ret = mwifiex_send_cmd_async(priv,
+                                        HostCmd_CMD_MAC_MULTICAST_ADR,
+                                        HostCmd_ACT_GEN_SET, 0,
+                                        mcast_list);
                         }
                 }
         }
diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/trx.h b/drivers/net/wireless/rtlwifi/rtl8188ee/trx.h
index d3a02e73f53a..21ca33a7c770 100644
--- a/drivers/net/wireless/rtlwifi/rtl8188ee/trx.h
+++ b/drivers/net/wireless/rtlwifi/rtl8188ee/trx.h
@@ -550,7 +550,7 @@ do {								\
          rxmcs == DESC92C_RATE11M)
 
 struct phy_rx_agc_info_t {
-        #if __LITTLE_ENDIAN
+        #ifdef __LITTLE_ENDIAN
                 u8      gain:7, trsw:1;
         #else
                 u8      trsw:1, gain:7;
@@ -574,7 +574,7 @@ struct phy_status_rpt {
         u8      stream_target_csi[2];
         u8      sig_evm;
         u8      rsvd_3;
-#if __LITTLE_ENDIAN
+#ifdef __LITTLE_ENDIAN
         u8      antsel_rx_keep_2:1;     /*ex_intf_flg:1;*/
         u8      sgi_en:1;
         u8      rxsc:2;
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
index 23d640a4debd..938b1e670b93 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
@@ -349,6 +349,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = {
         {RTL_USB_DEVICE(0x07aa, 0x0056, rtl92cu_hal_cfg)}, /*ATKK-Gemtek*/
         {RTL_USB_DEVICE(0x07b8, 0x8178, rtl92cu_hal_cfg)}, /*Funai -Abocom*/
         {RTL_USB_DEVICE(0x0846, 0x9021, rtl92cu_hal_cfg)}, /*Netgear-Sercomm*/
+        {RTL_USB_DEVICE(0x0846, 0xf001, rtl92cu_hal_cfg)}, /*On Netwrks N300MA*/
         {RTL_USB_DEVICE(0x0b05, 0x17ab, rtl92cu_hal_cfg)}, /*ASUS-Edimax*/
         {RTL_USB_DEVICE(0x0bda, 0x8186, rtl92cu_hal_cfg)}, /*Realtek 92CE-VAU*/
         {RTL_USB_DEVICE(0x0df6, 0x0061, rtl92cu_hal_cfg)}, /*Sitecom-Edimax*/
diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index f802e7c92356..2dacd19e1b8a 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -345,7 +345,7 @@ int ntb_read_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 *val)
  */
 void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw)
 {
-        if (mw > NTB_NUM_MW)
+        if (mw >= NTB_NUM_MW)
                 return NULL;
 
         return ndev->mw[mw].vbase;
@@ -362,7 +362,7 @@ void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw)
  */
 resource_size_t ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw)
 {
-        if (mw > NTB_NUM_MW)
+        if (mw >= NTB_NUM_MW)
                 return 0;
 
         return ndev->mw[mw].bar_sz;
@@ -380,7 +380,7 @@ resource_size_t ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw)
  */
 void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr)
 {
-        if (mw > NTB_NUM_MW)
+        if (mw >= NTB_NUM_MW)
                 return;
 
         dev_dbg(&ndev->pdev->dev, "Writing addr %Lx to BAR %d\n", addr,
@@ -1027,8 +1027,8 @@ static int ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                 ndev->mw[i].vbase =
                     ioremap_wc(pci_resource_start(pdev, MW_TO_BAR(i)),
                                ndev->mw[i].bar_sz);
-                dev_info(&pdev->dev, "MW %d size %d\n", i,
-                         (u32) pci_resource_len(pdev, MW_TO_BAR(i)));
+                dev_info(&pdev->dev, "MW %d size %llu\n", i,
+                         pci_resource_len(pdev, MW_TO_BAR(i)));
                 if (!ndev->mw[i].vbase) {
                         dev_warn(&pdev->dev, "Cannot remap BAR %d\n",
                                  MW_TO_BAR(i));
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index e0bdfd7f9930..f8d7081ee301 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -58,7 +58,7 @@
 #include <linux/ntb.h>
 #include "ntb_hw.h"
 
-#define NTB_TRANSPORT_VERSION   2
+#define NTB_TRANSPORT_VERSION   3
 
 static unsigned int transport_mtu = 0x401E;
 module_param(transport_mtu, uint, 0644);
@@ -173,10 +173,13 @@ struct ntb_payload_header {
 
 enum {
         VERSION = 0,
-        MW0_SZ,
-        MW1_SZ,
-        NUM_QPS,
         QP_LINKS,
+        NUM_QPS,
+        NUM_MWS,
+        MW0_SZ_HIGH,
+        MW0_SZ_LOW,
+        MW1_SZ_HIGH,
+        MW1_SZ_LOW,
         MAX_SPAD,
 };
 
@@ -297,7 +300,7 @@ int ntb_register_client_dev(char *device_name)
 {
         struct ntb_transport_client_dev *client_dev;
         struct ntb_transport *nt;
-        int rc;
+        int rc, i = 0;
 
         if (list_empty(&ntb_transport_list))
                 return -ENODEV;
@@ -315,7 +318,7 @@ int ntb_register_client_dev(char *device_name)
                 dev = &client_dev->dev;
 
                 /* setup and register client devices */
-                dev_set_name(dev, "%s", device_name);
+                dev_set_name(dev, "%s%d", device_name, i);
                 dev->bus = &ntb_bus_type;
                 dev->release = ntb_client_release;
                 dev->parent = &ntb_query_pdev(nt->ndev)->dev;
@@ -327,6 +330,7 @@ int ntb_register_client_dev(char *device_name)
                 }
 
                 list_add_tail(&client_dev->entry, &nt->client_devs);
+                i++;
         }
 
         return 0;
@@ -486,12 +490,13 @@ static void ntb_transport_setup_qp_mw(struct ntb_transport *nt,
                              (qp_num / NTB_NUM_MW * rx_size);
         rx_size -= sizeof(struct ntb_rx_info);
 
-        qp->rx_buff = qp->remote_rx_info + sizeof(struct ntb_rx_info);
-        qp->rx_max_frame = min(transport_mtu, rx_size);
+        qp->rx_buff = qp->remote_rx_info + 1;
+        /* Due to housekeeping, there must be atleast 2 buffs */
+        qp->rx_max_frame = min(transport_mtu, rx_size / 2);
         qp->rx_max_entry = rx_size / qp->rx_max_frame;
         qp->rx_index = 0;
 
-        qp->remote_rx_info->entry = qp->rx_max_entry;
+        qp->remote_rx_info->entry = qp->rx_max_entry - 1;
 
         /* setup the hdr offsets with 0's */
         for (i = 0; i < qp->rx_max_entry; i++) {
@@ -502,6 +507,19 @@ static void ntb_transport_setup_qp_mw(struct ntb_transport *nt,
 
         qp->rx_pkts = 0;
         qp->tx_pkts = 0;
+        qp->tx_index = 0;
+}
+
+static void ntb_free_mw(struct ntb_transport *nt, int num_mw)
+{
+        struct ntb_transport_mw *mw = &nt->mw[num_mw];
+        struct pci_dev *pdev = ntb_query_pdev(nt->ndev);
+
+        if (!mw->virt_addr)
+                return;
+
+        dma_free_coherent(&pdev->dev, mw->size, mw->virt_addr, mw->dma_addr);
+        mw->virt_addr = NULL;
 }
 
 static int ntb_set_mw(struct ntb_transport *nt, int num_mw, unsigned int size)
@@ -509,12 +527,20 @@ static int ntb_set_mw(struct ntb_transport *nt, int num_mw, unsigned int size)
         struct ntb_transport_mw *mw = &nt->mw[num_mw];
         struct pci_dev *pdev = ntb_query_pdev(nt->ndev);
 
+        /* No need to re-setup */
+        if (mw->size == ALIGN(size, 4096))
+                return 0;
+
+        if (mw->size != 0)
+                ntb_free_mw(nt, num_mw);
+
         /* Alloc memory for receiving data.  Must be 4k aligned */
         mw->size = ALIGN(size, 4096);
 
         mw->virt_addr = dma_alloc_coherent(&pdev->dev, mw->size, &mw->dma_addr,
                                            GFP_KERNEL);
         if (!mw->virt_addr) {
+                mw->size = 0;
                 dev_err(&pdev->dev, "Unable to allocate MW buffer of size %d\n",
                        (int) mw->size);
                 return -ENOMEM;
@@ -604,25 +630,31 @@ static void ntb_transport_link_work(struct work_struct *work)
         u32 val;
         int rc, i;
 
-        /* send the local info */
-        rc = ntb_write_remote_spad(ndev, VERSION, NTB_TRANSPORT_VERSION);
-        if (rc) {
-                dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
-                        0, VERSION);
-                goto out;
-        }
+        /* send the local info, in the opposite order of the way we read it */
+        for (i = 0; i < NTB_NUM_MW; i++) {
+                rc = ntb_write_remote_spad(ndev, MW0_SZ_HIGH + (i * 2),
+                                           ntb_get_mw_size(ndev, i) >> 32);
+                if (rc) {
+                        dev_err(&pdev->dev, "Error writing %u to remote spad %d\n",
+                                (u32)(ntb_get_mw_size(ndev, i) >> 32),
+                                MW0_SZ_HIGH + (i * 2));
+                        goto out;
+                }
 
-        rc = ntb_write_remote_spad(ndev, MW0_SZ, ntb_get_mw_size(ndev, 0));
-        if (rc) {
-                dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
-                        (u32) ntb_get_mw_size(ndev, 0), MW0_SZ);
-                goto out;
+                rc = ntb_write_remote_spad(ndev, MW0_SZ_LOW + (i * 2),
+                                           (u32) ntb_get_mw_size(ndev, i));
+                if (rc) {
+                        dev_err(&pdev->dev, "Error writing %u to remote spad %d\n",
+                                (u32) ntb_get_mw_size(ndev, i),
+                                MW0_SZ_LOW + (i * 2));
+                        goto out;
+                }
         }
 
-        rc = ntb_write_remote_spad(ndev, MW1_SZ, ntb_get_mw_size(ndev, 1));
+        rc = ntb_write_remote_spad(ndev, NUM_MWS, NTB_NUM_MW);
         if (rc) {
                 dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
-                        (u32) ntb_get_mw_size(ndev, 1), MW1_SZ);
+                        NTB_NUM_MW, NUM_MWS);
                 goto out;
         }
 
@@ -633,16 +665,10 @@ static void ntb_transport_link_work(struct work_struct *work)
                 goto out;
         }
 
-        rc = ntb_read_local_spad(nt->ndev, QP_LINKS, &val);
-        if (rc) {
-                dev_err(&pdev->dev, "Error reading spad %d\n", QP_LINKS);
-                goto out;
-        }
-
-        rc = ntb_write_remote_spad(ndev, QP_LINKS, val);
+        rc = ntb_write_remote_spad(ndev, VERSION, NTB_TRANSPORT_VERSION);
         if (rc) {
                 dev_err(&pdev->dev, "Error writing %x to remote spad %d\n",
-                        val, QP_LINKS);
+                        NTB_TRANSPORT_VERSION, VERSION);
                 goto out;
         }
 
@@ -667,33 +693,43 @@ static void ntb_transport_link_work(struct work_struct *work)
                 goto out;
         dev_dbg(&pdev->dev, "Remote max number of qps = %d\n", val);
 
-        rc = ntb_read_remote_spad(ndev, MW0_SZ, &val);
+        rc = ntb_read_remote_spad(ndev, NUM_MWS, &val);
         if (rc) {
-                dev_err(&pdev->dev, "Error reading remote spad %d\n", MW0_SZ);
+                dev_err(&pdev->dev, "Error reading remote spad %d\n", NUM_MWS);
                 goto out;
         }
 
-        if (!val)
+        if (val != NTB_NUM_MW)
                 goto out;
-        dev_dbg(&pdev->dev, "Remote MW0 size = %d\n", val);
+        dev_dbg(&pdev->dev, "Remote number of mws = %d\n", val);
 
-        rc = ntb_set_mw(nt, 0, val);
-        if (rc)
-                goto out;
+        for (i = 0; i < NTB_NUM_MW; i++) {
+                u64 val64;
 
-        rc = ntb_read_remote_spad(ndev, MW1_SZ, &val);
-        if (rc) {
-                dev_err(&pdev->dev, "Error reading remote spad %d\n", MW1_SZ);
-                goto out;
-        }
+                rc = ntb_read_remote_spad(ndev, MW0_SZ_HIGH + (i * 2), &val);
+                if (rc) {
+                        dev_err(&pdev->dev, "Error reading remote spad %d\n",
+                                MW0_SZ_HIGH + (i * 2));
+                        goto out1;
+                }
 
-        if (!val)
-                goto out;
-        dev_dbg(&pdev->dev, "Remote MW1 size = %d\n", val);
+                val64 = (u64) val << 32;
 
-        rc = ntb_set_mw(nt, 1, val);
-        if (rc)
-                goto out;
+                rc = ntb_read_remote_spad(ndev, MW0_SZ_LOW + (i * 2), &val);
+                if (rc) {
+                        dev_err(&pdev->dev, "Error reading remote spad %d\n",
+                                MW0_SZ_LOW + (i * 2));
+                        goto out1;
+                }
+
+                val64 |= val;
+
+                dev_dbg(&pdev->dev, "Remote MW%d size = %llu\n", i, val64);
+
+                rc = ntb_set_mw(nt, i, val64);
+                if (rc)
+                        goto out1;
+        }
 
         nt->transport_link = NTB_LINK_UP;
 
@@ -708,6 +744,9 @@ static void ntb_transport_link_work(struct work_struct *work)
 
         return;
 
+out1:
+        for (i = 0; i < NTB_NUM_MW; i++)
+                ntb_free_mw(nt, i);
 out:
         if (ntb_hw_link_status(ndev))
                 schedule_delayed_work(&nt->link_work,
@@ -780,10 +819,10 @@ static void ntb_transport_init_queue(struct ntb_transport *nt,
                       (qp_num / NTB_NUM_MW * tx_size);
         tx_size -= sizeof(struct ntb_rx_info);
 
-        qp->tx_mw = qp->rx_info + sizeof(struct ntb_rx_info);
-        qp->tx_max_frame = min(transport_mtu, tx_size);
+        qp->tx_mw = qp->rx_info + 1;
+        /* Due to housekeeping, there must be atleast 2 buffs */
+        qp->tx_max_frame = min(transport_mtu, tx_size / 2);
         qp->tx_max_entry = tx_size / qp->tx_max_frame;
-        qp->tx_index = 0;
 
         if (nt->debugfs_dir) {
                 char debugfs_name[4];
@@ -897,10 +936,7 @@ void ntb_transport_free(void *transport)
         pdev = ntb_query_pdev(nt->ndev);
 
         for (i = 0; i < NTB_NUM_MW; i++)
-                if (nt->mw[i].virt_addr)
-                        dma_free_coherent(&pdev->dev, nt->mw[i].size,
-                                          nt->mw[i].virt_addr,
-                                          nt->mw[i].dma_addr);
+                ntb_free_mw(nt, i);
 
         kfree(nt->qps);
         ntb_unregister_transport(nt->ndev);
@@ -999,11 +1035,16 @@ out:
 static void ntb_transport_rx(unsigned long data)
 {
         struct ntb_transport_qp *qp = (struct ntb_transport_qp *)data;
-        int rc;
+        int rc, i;
 
-        do {
+        /* Limit the number of packets processed in a single interrupt to
+         * provide fairness to others
+         */
+        for (i = 0; i < qp->rx_max_entry; i++) {
                 rc = ntb_process_rxc(qp);
-        } while (!rc);
+                if (rc)
+                        break;
+        }
 }
 
 static void ntb_transport_rxc_db(void *data, int db_num)
@@ -1210,12 +1251,14 @@ EXPORT_SYMBOL_GPL(ntb_transport_create_queue);
  */
 void ntb_transport_free_queue(struct ntb_transport_qp *qp)
 {
-        struct pci_dev *pdev = ntb_query_pdev(qp->ndev);
+        struct pci_dev *pdev;
         struct ntb_queue_entry *entry;
 
         if (!qp)
                 return;
 
+        pdev = ntb_query_pdev(qp->ndev);
+
         cancel_delayed_work_sync(&qp->link_work);
 
         ntb_unregister_db_callback(qp->ndev, qp->qp_num);
@@ -1371,12 +1414,13 @@ EXPORT_SYMBOL_GPL(ntb_transport_link_up);
  */
 void ntb_transport_link_down(struct ntb_transport_qp *qp)
 {
-        struct pci_dev *pdev = ntb_query_pdev(qp->ndev);
+        struct pci_dev *pdev;
         int rc, val;
 
         if (!qp)
                 return;
 
+        pdev = ntb_query_pdev(qp->ndev);
         qp->client_ready = NTB_LINK_DOWN;
 
         rc = ntb_read_local_spad(qp->ndev, QP_LINKS, &val);
@@ -1408,6 +1452,9 @@ EXPORT_SYMBOL_GPL(ntb_transport_link_down);
  */
 bool ntb_transport_link_query(struct ntb_transport_qp *qp)
 {
+        if (!qp)
+                return false;
+
         return qp->qp_link == NTB_LINK_UP;
 }
 EXPORT_SYMBOL_GPL(ntb_transport_link_query);
@@ -1422,6 +1469,9 @@ EXPORT_SYMBOL_GPL(ntb_transport_link_query);
  */
 unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp)
 {
+        if (!qp)
+                return 0;
+
         return qp->qp_num;
 }
 EXPORT_SYMBOL_GPL(ntb_transport_qp_num);
@@ -1436,6 +1486,9 @@ EXPORT_SYMBOL_GPL(ntb_transport_qp_num);
  */
 unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp)
 {
+        if (!qp)
+                return 0;
+
         return qp->tx_max_frame - sizeof(struct ntb_payload_header);
 }
 EXPORT_SYMBOL_GPL(ntb_transport_max_size);
diff --git a/drivers/of/base.c b/drivers/of/base.c
index c76d16c972cc..f53b992f060a 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1208,11 +1208,11 @@ static int __of_parse_phandle_with_args(const struct device_node *np,
                                 out_args->args_count = count;
                                 for (i = 0; i < count; i++)
                                         out_args->args[i] = be32_to_cpup(list++);
+                        } else {
+                                of_node_put(node);
                         }
 
                         /* Found it! return success */
-                        if (node)
-                                of_node_put(node);
                         return 0;
                 }
 
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index ac6e8e7a02df..a042d065a0c7 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -494,15 +494,4 @@ static struct pci_driver superio_driver = {
         .probe =        superio_probe,
 };
 
-static int __init superio_modinit(void)
-{
-        return pci_register_driver(&superio_driver);
-}
-
-static void __exit superio_exit(void)
-{
-        pci_unregister_driver(&superio_driver);
-}
-
-module_init(superio_modinit);
-module_exit(superio_exit);
+module_pci_driver(superio_driver);
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 96fed19c6d90..716aa93fff76 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -950,6 +950,20 @@ check_sub_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
         return AE_OK ;
 }
 
+void acpiphp_check_host_bridge(acpi_handle handle)
+{
+        struct acpiphp_bridge *bridge;
+
+        bridge = acpiphp_handle_to_bridge(handle);
+        if (bridge) {
+                acpiphp_check_bridge(bridge);
+                put_bridge(bridge);
+        }
+
+        acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
+                ACPI_UINT32_MAX, check_sub_bridges, NULL, NULL, NULL);
+}
+
 static void _handle_hotplug_event_bridge(struct work_struct *work)
 {
         struct acpiphp_bridge *bridge;
diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c
index aa17f7580f61..6d4532702f80 100644
--- a/drivers/pinctrl/pinctrl-abx500.c
+++ b/drivers/pinctrl/pinctrl-abx500.c
@@ -851,23 +851,12 @@ static int abx500_gpio_probe(struct platform_device *pdev)
 
         if (abx500_pdata)
                 pdata = abx500_pdata->gpio;
-        if (!pdata) {
-                if (np) {
-                        const struct of_device_id *match;
 
-                        match = of_match_device(abx500_gpio_match, &pdev->dev);
-                        if (!match)
-                                return -ENODEV;
-                        id = (unsigned long)match->data;
-                } else {
-                        dev_err(&pdev->dev, "gpio dt and platform data missing\n");
-                        return -ENODEV;
-                }
+        if (!(pdata || np)) {
+                dev_err(&pdev->dev, "gpio dt and platform data missing\n");
+                return -ENODEV;
         }
 
-        if (platid)
-                id = platid->driver_data;
-
         pct = devm_kzalloc(&pdev->dev, sizeof(struct abx500_pinctrl),
                                    GFP_KERNEL);
         if (pct == NULL) {
@@ -882,6 +871,16 @@ static int abx500_gpio_probe(struct platform_device *pdev)
         pct->chip.dev = &pdev->dev;
         pct->chip.base = (np) ? -1 : pdata->gpio_base;
 
+        if (platid)
+                id = platid->driver_data;
+        else if (np) {
+                const struct of_device_id *match;
+
+                match = of_match_device(abx500_gpio_match, &pdev->dev);
+                if (match)
+                        id = (unsigned long)match->data;
+        }
+
         /* initialize the lock */
         mutex_init(&pct->lock);
 
@@ -900,8 +899,7 @@ static int abx500_gpio_probe(struct platform_device *pdev)
                 abx500_pinctrl_ab8505_init(&pct->soc);
                 break;
         default:
-                dev_err(&pdev->dev, "Unsupported pinctrl sub driver (%d)\n",
-                                (int) platid->driver_data);
+                dev_err(&pdev->dev, "Unsupported pinctrl sub driver (%d)\n", id);
                 mutex_destroy(&pct->lock);
                 return -EINVAL;
         }
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index edde3acc4186..a67af419f531 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -713,11 +713,6 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
         gpio->dev = &pdev->dev;
 
         memres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!memres) {
-                dev_err(gpio->dev, "could not get GPIO memory resource\n");
-                return -ENODEV;
-        }
-
         gpio->base = devm_ioremap_resource(&pdev->dev, memres);
         if (IS_ERR(gpio->base))
                 return PTR_ERR(gpio->base);
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
index 6038503ed929..32a48f44f574 100644
--- a/drivers/pinctrl/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -1000,11 +1000,6 @@ static int exynos5440_pinctrl_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(dev, "cannot find IO resource\n");
-                return -ENOENT;
-        }
-
         priv->reg_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(priv->reg_base))
                 return PTR_ERR(priv->reg_base);
diff --git a/drivers/pinctrl/pinctrl-lantiq.c b/drivers/pinctrl/pinctrl-lantiq.c
index 615c5002b757..d22ca252b80d 100644
--- a/drivers/pinctrl/pinctrl-lantiq.c
+++ b/drivers/pinctrl/pinctrl-lantiq.c
@@ -52,7 +52,8 @@ static void ltq_pinctrl_dt_free_map(struct pinctrl_dev *pctldev,
         int i;
 
         for (i = 0; i < num_maps; i++)
-                if (map[i].type == PIN_MAP_TYPE_CONFIGS_PIN)
+                if (map[i].type == PIN_MAP_TYPE_CONFIGS_PIN ||
+                    map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP)
                         kfree(map[i].data.configs.configs);
         kfree(map);
 }
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index 976366899f68..055d0162098b 100644
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -932,11 +932,6 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
         drvdata->dev = dev;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(dev, "cannot find IO resource\n");
-                return -ENOENT;
-        }
-
         drvdata->virt_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(drvdata->virt_base))
                 return PTR_ERR(drvdata->virt_base);
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 5f2d2bfd356e..b9fa04618601 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1166,7 +1166,8 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs,
         (*map)->data.mux.function = np->name;
 
         if (pcs->is_pinconf) {
-                if (pcs_parse_pinconf(pcs, np, function, map))
+                res = pcs_parse_pinconf(pcs, np, function, map);
+                if (res)
                         goto free_pingroups;
                 *num_maps = 2;
         } else {
diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
index f2977cff8366..e92132c76a6b 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -716,10 +716,6 @@ static int pinmux_xway_probe(struct platform_device *pdev)
 
         /* get and remap our register range */
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "Failed to get resource\n");
-                return -ENOENT;
-        }
         xway_info.membase[0] = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(xway_info.membase[0]))
                 return PTR_ERR(xway_info.membase[0]);
diff --git a/drivers/pinctrl/vt8500/pinctrl-wm8750.c b/drivers/pinctrl/vt8500/pinctrl-wm8750.c
index b964cc550568..de43262398db 100644
--- a/drivers/pinctrl/vt8500/pinctrl-wm8750.c
+++ b/drivers/pinctrl/vt8500/pinctrl-wm8750.c
@@ -53,7 +53,7 @@ static const struct wmt_pinctrl_bank_registers wm8750_banks[] = {
 #define WMT_PIN_EXTGPIO6        WMT_PIN(0, 6)
 #define WMT_PIN_EXTGPIO7        WMT_PIN(0, 7)
 #define WMT_PIN_WAKEUP0         WMT_PIN(0, 16)
-#define WMT_PIN_WAKEUP1         WMT_PIN(0, 16)
+#define WMT_PIN_WAKEUP1         WMT_PIN(0, 17)
 #define WMT_PIN_SD0CD           WMT_PIN(0, 28)
 #define WMT_PIN_VDOUT0          WMT_PIN(1, 0)
 #define WMT_PIN_VDOUT1          WMT_PIN(1, 1)
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 0d0b5d7d19d0..7b8979c63f48 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -152,6 +152,7 @@ config BATTERY_SBS
 
 config BATTERY_BQ27x00
         tristate "BQ27x00 battery driver"
+        depends on I2C || I2C=n
         help
           Say Y here to enable support for batteries with BQ27x00 (I2C/HDQ) chips.
 
@@ -284,6 +285,7 @@ config CHARGER_LP8788
         tristate "TI LP8788 charger driver"
         depends on MFD_LP8788
         depends on LP8788_ADC
+        depends on IIO
         help
           Say Y to enable support for the LP8788 linear charger.
 
diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c
index a44175139bbf..fef56e2041b3 100644
--- a/drivers/power/pm2301_charger.c
+++ b/drivers/power/pm2301_charger.c
@@ -1269,5 +1269,5 @@ module_exit(pm2xxx_charger_exit);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Rajkumar kasirajan, Olivier Launay");
-MODULE_ALIAS("platform:pm2xxx-charger");
+MODULE_ALIAS("i2c:pm2xxx-charger");
 MODULE_DESCRIPTION("PM2xxx charger management driver");
diff --git a/drivers/power/wm831x_backup.c b/drivers/power/wm831x_backup.c
index 58cbb009b74f..56fb509f4be0 100644
--- a/drivers/power/wm831x_backup.c
+++ b/drivers/power/wm831x_backup.c
@@ -207,7 +207,6 @@ static int wm831x_backup_remove(struct platform_device *pdev)
         struct wm831x_backup *devdata = platform_get_drvdata(pdev);
 
         power_supply_unregister(&devdata->backup);
-        kfree(devdata->backup.name);
 
         return 0;
 }
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index ec287989eafc..c938bae18812 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -265,11 +265,6 @@ static int imx_pwm_probe(struct platform_device *pdev)
         imx->chip.npwm = 1;
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (r == NULL) {
-                dev_err(&pdev->dev, "no memory resource defined\n");
-                return -ENODEV;
-        }
-
         imx->mmio_base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(imx->mmio_base))
                 return PTR_ERR(imx->mmio_base);
diff --git a/drivers/pwm/pwm-puv3.c b/drivers/pwm/pwm-puv3.c
index d1eb499fb15d..ed6007b27585 100644
--- a/drivers/pwm/pwm-puv3.c
+++ b/drivers/pwm/pwm-puv3.c
@@ -117,11 +117,6 @@ static int pwm_probe(struct platform_device *pdev)
                 return PTR_ERR(puv3->clk);
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (r == NULL) {
-                dev_err(&pdev->dev, "no memory resource defined\n");
-                return -ENODEV;
-        }
-
         puv3->base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(puv3->base))
                 return PTR_ERR(puv3->base);
diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c
index dee6ab552a0a..dc9717551d39 100644
--- a/drivers/pwm/pwm-pxa.c
+++ b/drivers/pwm/pwm-pxa.c
@@ -147,11 +147,6 @@ static int pwm_probe(struct platform_device *pdev)
         pwm->chip.npwm = (id->driver_data & HAS_SECONDARY_PWM) ? 2 : 1;
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (r == NULL) {
-                dev_err(&pdev->dev, "no memory resource defined\n");
-                return -ENODEV;
-        }
-
         pwm->mmio_base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(pwm->mmio_base))
                 return PTR_ERR(pwm->mmio_base);
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index 3d75f4a88f98..a5402933001f 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -181,11 +181,6 @@ static int tegra_pwm_probe(struct platform_device *pdev)
         pwm->dev = &pdev->dev;
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!r) {
-                dev_err(&pdev->dev, "no memory resources defined\n");
-                return -ENODEV;
-        }
-
         pwm->mmio_base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(pwm->mmio_base))
                 return PTR_ERR(pwm->mmio_base);
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 0d65fb2e02c7..72ca42dfa733 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -240,11 +240,6 @@ static int ecap_pwm_probe(struct platform_device *pdev)
         pc->chip.npwm = 1;
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!r) {
-                dev_err(&pdev->dev, "no memory resource defined\n");
-                return -ENODEV;
-        }
-
         pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(pc->mmio_base))
                 return PTR_ERR(pc->mmio_base);
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 6a217596942f..48a485c2e422 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -471,11 +471,6 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
         pc->chip.npwm = NUM_PWM_CHANNEL;
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!r) {
-                dev_err(&pdev->dev, "no memory resource defined\n");
-                return -ENODEV;
-        }
-
         pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(pc->mmio_base))
                 return PTR_ERR(pc->mmio_base);
diff --git a/drivers/pwm/pwm-tipwmss.c b/drivers/pwm/pwm-tipwmss.c
index c9c3d3a1e0eb..3b119bc2c3c6 100644
--- a/drivers/pwm/pwm-tipwmss.c
+++ b/drivers/pwm/pwm-tipwmss.c
@@ -70,11 +70,6 @@ static int pwmss_probe(struct platform_device *pdev)
         mutex_init(&info->pwmss_lock);
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!r) {
-                dev_err(&pdev->dev, "no memory resource defined\n");
-                return -ENODEV;
-        }
-
         info->mmio_base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(info->mmio_base))
                 return PTR_ERR(info->mmio_base);
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index 69effd19afc7..323125abf3f4 100644
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -230,11 +230,6 @@ static int vt8500_pwm_probe(struct platform_device *pdev)
         }
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (r == NULL) {
-                dev_err(&pdev->dev, "no memory resource defined\n");
-                return -ENODEV;
-        }
-
         chip->base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(chip->base))
                 return PTR_ERR(chip->base);
diff --git a/drivers/rapidio/Kconfig b/drivers/rapidio/Kconfig
index 6194d35ebb97..5ab056494bbe 100644
--- a/drivers/rapidio/Kconfig
+++ b/drivers/rapidio/Kconfig
@@ -47,4 +47,24 @@ config RAPIDIO_DEBUG
 
           If you are unsure about this, say N here.
 
+choice
+        prompt "Enumeration method"
+        depends on RAPIDIO
+        default RAPIDIO_ENUM_BASIC
+        help
+          There are different enumeration and discovery mechanisms offered
+          for RapidIO subsystem. You may select single built-in method or
+          or any number of methods to be built as modules.
+          Selecting a built-in method disables use of loadable methods.
+
+          If unsure, select Basic built-in.
+
+config RAPIDIO_ENUM_BASIC
+        tristate "Basic"
+        help
+          This option includes basic RapidIO fabric enumeration and discovery
+          mechanism similar to one described in RapidIO specification Annex 1.
+
+endchoice
+
 source "drivers/rapidio/switches/Kconfig"
diff --git a/drivers/rapidio/Makefile b/drivers/rapidio/Makefile
index ec3fb8121004..3036702ffe8b 100644
--- a/drivers/rapidio/Makefile
+++ b/drivers/rapidio/Makefile
@@ -1,7 +1,8 @@
 #
 # Makefile for RapidIO interconnect services
 #
-obj-y += rio.o rio-access.o rio-driver.o rio-scan.o rio-sysfs.o
+obj-y += rio.o rio-access.o rio-driver.o rio-sysfs.o
+obj-$(CONFIG_RAPIDIO_ENUM_BASIC) += rio-scan.o
 
 obj-$(CONFIG_RAPIDIO)           += switches/
 obj-$(CONFIG_RAPIDIO)           += devices/
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 6faba406b6e9..a8b2c23a7ef4 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -471,6 +471,10 @@ static irqreturn_t tsi721_irqhandler(int irq, void *ptr)
         u32 intval;
         u32 ch_inte;
 
+        /* For MSI mode disable all device-level interrupts */
+        if (priv->flags & TSI721_USING_MSI)
+                iowrite32(0, priv->regs + TSI721_DEV_INTE);
+
         dev_int = ioread32(priv->regs + TSI721_DEV_INT);
         if (!dev_int)
                 return IRQ_NONE;
@@ -560,6 +564,14 @@ static irqreturn_t tsi721_irqhandler(int irq, void *ptr)
                 }
         }
 #endif
+
+        /* For MSI mode re-enable device-level interrupts */
+        if (priv->flags & TSI721_USING_MSI) {
+                dev_int = TSI721_DEV_INT_SR2PC_CH | TSI721_DEV_INT_SRIO |
+                        TSI721_DEV_INT_SMSG_CH | TSI721_DEV_INT_BDMA_CH;
+                iowrite32(dev_int, priv->regs + TSI721_DEV_INTE);
+        }
+
         return IRQ_HANDLED;
 }
 
diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c
index 0f4a53bdaa3c..a0c875563d76 100644
--- a/drivers/rapidio/rio-driver.c
+++ b/drivers/rapidio/rio-driver.c
@@ -164,6 +164,13 @@ void rio_unregister_driver(struct rio_driver *rdrv)
         driver_unregister(&rdrv->driver);
 }
 
+void rio_attach_device(struct rio_dev *rdev)
+{
+        rdev->dev.bus = &rio_bus_type;
+        rdev->dev.parent = &rio_bus;
+}
+EXPORT_SYMBOL_GPL(rio_attach_device);
+
 /**
  *  rio_match_bus - Tell if a RIO device structure has a matching RIO driver device id structure
  *  @dev: the standard device structure to match against
@@ -200,6 +207,7 @@ struct bus_type rio_bus_type = {
         .name = "rapidio",
         .match = rio_match_bus,
         .dev_attrs = rio_dev_attrs,
+        .bus_attrs = rio_bus_attrs,
         .probe = rio_device_probe,
         .remove = rio_device_remove,
 };
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index a965acd3c0e4..4c15dbf81087 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -37,12 +37,8 @@
 
 #include "rio.h"
 
-LIST_HEAD(rio_devices);
-
 static void rio_init_em(struct rio_dev *rdev);
 
-DEFINE_SPINLOCK(rio_global_list_lock);
-
 static int next_destid = 0;
 static int next_comptag = 1;
 
@@ -327,127 +323,6 @@ static int rio_is_switch(struct rio_dev *rdev)
 }
 
 /**
- * rio_switch_init - Sets switch operations for a particular vendor switch
- * @rdev: RIO device
- * @do_enum: Enumeration/Discovery mode flag
- *
- * Searches the RIO switch ops table for known switch types. If the vid
- * and did match a switch table entry, then call switch initialization
- * routine to setup switch-specific routines.
- */
-static void rio_switch_init(struct rio_dev *rdev, int do_enum)
-{
-        struct rio_switch_ops *cur = __start_rio_switch_ops;
-        struct rio_switch_ops *end = __end_rio_switch_ops;
-
-        while (cur < end) {
-                if ((cur->vid == rdev->vid) && (cur->did == rdev->did)) {
-                        pr_debug("RIO: calling init routine for %s\n",
-                                 rio_name(rdev));
-                        cur->init_hook(rdev, do_enum);
-                        break;
-                }
-                cur++;
-        }
-
-        if ((cur >= end) && (rdev->pef & RIO_PEF_STD_RT)) {
-                pr_debug("RIO: adding STD routing ops for %s\n",
-                        rio_name(rdev));
-                rdev->rswitch->add_entry = rio_std_route_add_entry;
-                rdev->rswitch->get_entry = rio_std_route_get_entry;
-                rdev->rswitch->clr_table = rio_std_route_clr_table;
-        }
-
-        if (!rdev->rswitch->add_entry || !rdev->rswitch->get_entry)
-                printk(KERN_ERR "RIO: missing routing ops for %s\n",
-                       rio_name(rdev));
-}
-
-/**
- * rio_add_device- Adds a RIO device to the device model
- * @rdev: RIO device
- *
- * Adds the RIO device to the global device list and adds the RIO
- * device to the RIO device list.  Creates the generic sysfs nodes
- * for an RIO device.
- */
-static int rio_add_device(struct rio_dev *rdev)
-{
-        int err;
-
-        err = device_add(&rdev->dev);
-        if (err)
-                return err;
-
-        spin_lock(&rio_global_list_lock);
-        list_add_tail(&rdev->global_list, &rio_devices);
-        spin_unlock(&rio_global_list_lock);
-
-        rio_create_sysfs_dev_files(rdev);
-
-        return 0;
-}
-
-/**
- * rio_enable_rx_tx_port - enable input receiver and output transmitter of
- * given port
- * @port: Master port associated with the RIO network
- * @local: local=1 select local port otherwise a far device is reached
- * @destid: Destination ID of the device to check host bit
- * @hopcount: Number of hops to reach the target
- * @port_num: Port (-number on switch) to enable on a far end device
- *
- * Returns 0 or 1 from on General Control Command and Status Register
- * (EXT_PTR+0x3C)
- */
-inline int rio_enable_rx_tx_port(struct rio_mport *port,
-                                 int local, u16 destid,
-                                 u8 hopcount, u8 port_num) {
-#ifdef CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS
-        u32 regval;
-        u32 ext_ftr_ptr;
-
-        /*
-        * enable rx input tx output port
-        */
-        pr_debug("rio_enable_rx_tx_port(local = %d, destid = %d, hopcount = "
-                 "%d, port_num = %d)\n", local, destid, hopcount, port_num);
-
-        ext_ftr_ptr = rio_mport_get_physefb(port, local, destid, hopcount);
-
-        if (local) {
-                rio_local_read_config_32(port, ext_ftr_ptr +
-                                RIO_PORT_N_CTL_CSR(0),
-                                &regval);
-        } else {
-                if (rio_mport_read_config_32(port, destid, hopcount,
-                ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num), &regval) < 0)
-                        return -EIO;
-        }
-
-        if (regval & RIO_PORT_N_CTL_P_TYP_SER) {
-                /* serial */
-                regval = regval | RIO_PORT_N_CTL_EN_RX_SER
-                                | RIO_PORT_N_CTL_EN_TX_SER;
-        } else {
-                /* parallel */
-                regval = regval | RIO_PORT_N_CTL_EN_RX_PAR
-                                | RIO_PORT_N_CTL_EN_TX_PAR;
-        }
-
-        if (local) {
-                rio_local_write_config_32(port, ext_ftr_ptr +
-                                          RIO_PORT_N_CTL_CSR(0), regval);
-        } else {
-                if (rio_mport_write_config_32(port, destid, hopcount,
-                    ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num), regval) < 0)
-                        return -EIO;
-        }
-#endif
-        return 0;
-}
-
-/**
  * rio_setup_device- Allocates and sets up a RIO device
  * @net: RIO network
  * @port: Master port to send transactions
@@ -587,8 +462,7 @@ static struct rio_dev *rio_setup_device(struct rio_net *net,
                              rdev->destid);
         }
 
-        rdev->dev.bus = &rio_bus_type;
-        rdev->dev.parent = &rio_bus;
+        rio_attach_device(rdev);
 
         device_initialize(&rdev->dev);
         rdev->dev.release = rio_release_dev;
@@ -1260,19 +1134,30 @@ static void rio_pw_enable(struct rio_mport *port, int enable)
 /**
  * rio_enum_mport- Start enumeration through a master port
  * @mport: Master port to send transactions
+ * @flags: Enumeration control flags
  *
  * Starts the enumeration process. If somebody has enumerated our
  * master port device, then give up. If not and we have an active
  * link, then start recursive peer enumeration. Returns %0 if
  * enumeration succeeds or %-EBUSY if enumeration fails.
  */
-int rio_enum_mport(struct rio_mport *mport)
+int rio_enum_mport(struct rio_mport *mport, u32 flags)
 {
         struct rio_net *net = NULL;
         int rc = 0;
 
         printk(KERN_INFO "RIO: enumerate master port %d, %s\n", mport->id,
                mport->name);
+
+        /*
+         * To avoid multiple start requests (repeat enumeration is not supported
+         * by this method) check if enumeration/discovery was performed for this
+         * mport: if mport was added into the list of mports for a net exit
+         * with error.
+         */
+        if (mport->nnode.next || mport->nnode.prev)
+                return -EBUSY;
+
         /* If somebody else enumerated our master port device, bail. */
         if (rio_enum_host(mport) < 0) {
                 printk(KERN_INFO
@@ -1362,14 +1247,16 @@ static void rio_build_route_tables(struct rio_net *net)
 /**
  * rio_disc_mport- Start discovery through a master port
  * @mport: Master port to send transactions
+ * @flags: discovery control flags
  *
  * Starts the discovery process. If we have an active link,
- * then wait for the signal that enumeration is complete.
+ * then wait for the signal that enumeration is complete (if wait
+ * is allowed).
  * When enumeration completion is signaled, start recursive
  * peer discovery. Returns %0 if discovery succeeds or %-EBUSY
  * on failure.
  */
-int rio_disc_mport(struct rio_mport *mport)
+int rio_disc_mport(struct rio_mport *mport, u32 flags)
 {
         struct rio_net *net = NULL;
         unsigned long to_end;
@@ -1379,6 +1266,11 @@ int rio_disc_mport(struct rio_mport *mport)
 
         /* If master port has an active link, allocate net and discover peers */
         if (rio_mport_is_active(mport)) {
+                if (rio_enum_complete(mport))
+                        goto enum_done;
+                else if (flags & RIO_SCAN_ENUM_NO_WAIT)
+                        return -EAGAIN;
+
                 pr_debug("RIO: wait for enumeration to complete...\n");
 
                 to_end = jiffies + CONFIG_RAPIDIO_DISC_TIMEOUT * HZ;
@@ -1421,3 +1313,41 @@ enum_done:
 bail:
         return -EBUSY;
 }
+
+static struct rio_scan rio_scan_ops = {
+        .enumerate = rio_enum_mport,
+        .discover = rio_disc_mport,
+};
+
+static bool scan;
+module_param(scan, bool, 0);
+MODULE_PARM_DESC(scan, "Start RapidIO network enumeration/discovery "
+                        "(default = 0)");
+
+/**
+ * rio_basic_attach:
+ *
+ * When this enumeration/discovery method is loaded as a module this function
+ * registers its specific enumeration and discover routines for all available
+ * RapidIO mport devices. The "scan" command line parameter controls ability of
+ * the module to start RapidIO enumeration/discovery automatically.
+ *
+ * Returns 0 for success or -EIO if unable to register itself.
+ *
+ * This enumeration/discovery method cannot be unloaded and therefore does not
+ * provide a matching cleanup_module routine.
+ */
+
+static int __init rio_basic_attach(void)
+{
+        if (rio_register_scan(RIO_MPORT_ANY, &rio_scan_ops))
+                return -EIO;
+        if (scan)
+                rio_init_mports();
+        return 0;
+}
+
+late_initcall(rio_basic_attach);
+
+MODULE_DESCRIPTION("Basic RapidIO enumeration/discovery");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c
index 4dbe360989be..66d4acd5e18f 100644
--- a/drivers/rapidio/rio-sysfs.c
+++ b/drivers/rapidio/rio-sysfs.c
@@ -285,3 +285,48 @@ void rio_remove_sysfs_dev_files(struct rio_dev *rdev)
                         rdev->rswitch->sw_sysfs(rdev, RIO_SW_SYSFS_REMOVE);
         }
 }
+
+static ssize_t bus_scan_store(struct bus_type *bus, const char *buf,
+                                size_t count)
+{
+        long val;
+        struct rio_mport *port = NULL;
+        int rc;
+
+        if (kstrtol(buf, 0, &val) < 0)
+                return -EINVAL;
+
+        if (val == RIO_MPORT_ANY) {
+                rc = rio_init_mports();
+                goto exit;
+        }
+
+        if (val < 0 || val >= RIO_MAX_MPORTS)
+                return -EINVAL;
+
+        port = rio_find_mport((int)val);
+
+        if (!port) {
+                pr_debug("RIO: %s: mport_%d not available\n",
+                         __func__, (int)val);
+                return -EINVAL;
+        }
+
+        if (!port->nscan)
+                return -EINVAL;
+
+        if (port->host_deviceid >= 0)
+                rc = port->nscan->enumerate(port, 0);
+        else
+                rc = port->nscan->discover(port, RIO_SCAN_ENUM_NO_WAIT);
+exit:
+        if (!rc)
+                rc = count;
+
+        return rc;
+}
+
+struct bus_attribute rio_bus_attrs[] = {
+        __ATTR(scan, (S_IWUSR|S_IWGRP), NULL, bus_scan_store),
+        __ATTR_NULL
+};
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index d553b5d13722..cb1c08996fbb 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -31,7 +31,11 @@
 
 #include "rio.h"
 
+static LIST_HEAD(rio_devices);
+static DEFINE_SPINLOCK(rio_global_list_lock);
+
 static LIST_HEAD(rio_mports);
+static DEFINE_MUTEX(rio_mport_list_lock);
 static unsigned char next_portid;
 static DEFINE_SPINLOCK(rio_mmap_lock);
 
@@ -53,6 +57,32 @@ u16 rio_local_get_device_id(struct rio_mport *port)
 }
 
 /**
+ * rio_add_device- Adds a RIO device to the device model
+ * @rdev: RIO device
+ *
+ * Adds the RIO device to the global device list and adds the RIO
+ * device to the RIO device list.  Creates the generic sysfs nodes
+ * for an RIO device.
+ */
+int rio_add_device(struct rio_dev *rdev)
+{
+        int err;
+
+        err = device_add(&rdev->dev);
+        if (err)
+                return err;
+
+        spin_lock(&rio_global_list_lock);
+        list_add_tail(&rdev->global_list, &rio_devices);
+        spin_unlock(&rio_global_list_lock);
+
+        rio_create_sysfs_dev_files(rdev);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(rio_add_device);
+
+/**
  * rio_request_inb_mbox - request inbound mailbox service
  * @mport: RIO master port from which to allocate the mailbox resource
  * @dev_id: Device specific pointer to pass on event
@@ -489,6 +519,7 @@ rio_mport_get_physefb(struct rio_mport *port, int local,
 
         return ext_ftr_ptr;
 }
+EXPORT_SYMBOL_GPL(rio_mport_get_physefb);
 
 /**
  * rio_get_comptag - Begin or continue searching for a RIO device by component tag
@@ -521,6 +552,7 @@ exit:
         spin_unlock(&rio_global_list_lock);
         return rdev;
 }
+EXPORT_SYMBOL_GPL(rio_get_comptag);
 
 /**
  * rio_set_port_lockout - Sets/clears LOCKOUT bit (RIO EM 1.3) for a switch port.
@@ -545,6 +577,107 @@ int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock)
                                   regval);
         return 0;
 }
+EXPORT_SYMBOL_GPL(rio_set_port_lockout);
+
+/**
+ * rio_switch_init - Sets switch operations for a particular vendor switch
+ * @rdev: RIO device
+ * @do_enum: Enumeration/Discovery mode flag
+ *
+ * Searches the RIO switch ops table for known switch types. If the vid
+ * and did match a switch table entry, then call switch initialization
+ * routine to setup switch-specific routines.
+ */
+void rio_switch_init(struct rio_dev *rdev, int do_enum)
+{
+        struct rio_switch_ops *cur = __start_rio_switch_ops;
+        struct rio_switch_ops *end = __end_rio_switch_ops;
+
+        while (cur < end) {
+                if ((cur->vid == rdev->vid) && (cur->did == rdev->did)) {
+                        pr_debug("RIO: calling init routine for %s\n",
+                                 rio_name(rdev));
+                        cur->init_hook(rdev, do_enum);
+                        break;
+                }
+                cur++;
+        }
+
+        if ((cur >= end) && (rdev->pef & RIO_PEF_STD_RT)) {
+                pr_debug("RIO: adding STD routing ops for %s\n",
+                        rio_name(rdev));
+                rdev->rswitch->add_entry = rio_std_route_add_entry;
+                rdev->rswitch->get_entry = rio_std_route_get_entry;
+                rdev->rswitch->clr_table = rio_std_route_clr_table;
+        }
+
+        if (!rdev->rswitch->add_entry || !rdev->rswitch->get_entry)
+                printk(KERN_ERR "RIO: missing routing ops for %s\n",
+                       rio_name(rdev));
+}
+EXPORT_SYMBOL_GPL(rio_switch_init);
+
+/**
+ * rio_enable_rx_tx_port - enable input receiver and output transmitter of
+ * given port
+ * @port: Master port associated with the RIO network
+ * @local: local=1 select local port otherwise a far device is reached
+ * @destid: Destination ID of the device to check host bit
+ * @hopcount: Number of hops to reach the target
+ * @port_num: Port (-number on switch) to enable on a far end device
+ *
+ * Returns 0 or 1 from on General Control Command and Status Register
+ * (EXT_PTR+0x3C)
+ */
+int rio_enable_rx_tx_port(struct rio_mport *port,
+                          int local, u16 destid,
+                          u8 hopcount, u8 port_num)
+{
+#ifdef CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS
+        u32 regval;
+        u32 ext_ftr_ptr;
+
+        /*
+        * enable rx input tx output port
+        */
+        pr_debug("rio_enable_rx_tx_port(local = %d, destid = %d, hopcount = "
+                 "%d, port_num = %d)\n", local, destid, hopcount, port_num);
+
+        ext_ftr_ptr = rio_mport_get_physefb(port, local, destid, hopcount);
+
+        if (local) {
+                rio_local_read_config_32(port, ext_ftr_ptr +
+                                RIO_PORT_N_CTL_CSR(0),
+                                &regval);
+        } else {
+                if (rio_mport_read_config_32(port, destid, hopcount,
+                ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num), &regval) < 0)
+                        return -EIO;
+        }
+
+        if (regval & RIO_PORT_N_CTL_P_TYP_SER) {
+                /* serial */
+                regval = regval | RIO_PORT_N_CTL_EN_RX_SER
+                                | RIO_PORT_N_CTL_EN_TX_SER;
+        } else {
+                /* parallel */
+                regval = regval | RIO_PORT_N_CTL_EN_RX_PAR
+                                | RIO_PORT_N_CTL_EN_TX_PAR;
+        }
+
+        if (local) {
+                rio_local_write_config_32(port, ext_ftr_ptr +
+                                          RIO_PORT_N_CTL_CSR(0), regval);
+        } else {
+                if (rio_mport_write_config_32(port, destid, hopcount,
+                    ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num), regval) < 0)
+                        return -EIO;
+        }
+#endif
+        return 0;
+}
+EXPORT_SYMBOL_GPL(rio_enable_rx_tx_port);
+
 
 /**
  * rio_chk_dev_route - Validate route to the specified device.
@@ -610,6 +743,7 @@ rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid, u8 hopcount)
 
         return 0;
 }
+EXPORT_SYMBOL_GPL(rio_mport_chk_dev_access);
 
 /**
  * rio_chk_dev_access - Validate access to the specified device.
@@ -941,6 +1075,7 @@ rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
                 return RIO_GET_BLOCK_ID(reg_val);
         }
 }
+EXPORT_SYMBOL_GPL(rio_mport_get_efb);
 
 /**
  * rio_mport_get_feature - query for devices' extended features
@@ -997,6 +1132,7 @@ rio_mport_get_feature(struct rio_mport * port, int local, u16 destid,
 
         return 0;
 }
+EXPORT_SYMBOL_GPL(rio_mport_get_feature);
 
 /**
  * rio_get_asm - Begin or continue searching for a RIO device by vid/did/asm_vid/asm_did
@@ -1246,6 +1382,95 @@ EXPORT_SYMBOL_GPL(rio_dma_prep_slave_sg);
 
 #endif /* CONFIG_RAPIDIO_DMA_ENGINE */
 
+/**
+ * rio_find_mport - find RIO mport by its ID
+ * @mport_id: number (ID) of mport device
+ *
+ * Given a RIO mport number, the desired mport is located
+ * in the global list of mports. If the mport is found, a pointer to its
+ * data structure is returned.  If no mport is found, %NULL is returned.
+ */
+struct rio_mport *rio_find_mport(int mport_id)
+{
+        struct rio_mport *port;
+
+        mutex_lock(&rio_mport_list_lock);
+        list_for_each_entry(port, &rio_mports, node) {
+                if (port->id == mport_id)
+                        goto found;
+        }
+        port = NULL;
+found:
+        mutex_unlock(&rio_mport_list_lock);
+
+        return port;
+}
+
+/**
+ * rio_register_scan - enumeration/discovery method registration interface
+ * @mport_id: mport device ID for which fabric scan routine has to be set
+ *            (RIO_MPORT_ANY = set for all available mports)
+ * @scan_ops: enumeration/discovery control structure
+ *
+ * Assigns enumeration or discovery method to the specified mport device (or all
+ * available mports if RIO_MPORT_ANY is specified).
+ * Returns error if the mport already has an enumerator attached to it.
+ * In case of RIO_MPORT_ANY ignores ports with valid scan routines and returns
+ * an error if was unable to find at least one available mport.
+ */
+int rio_register_scan(int mport_id, struct rio_scan *scan_ops)
+{
+        struct rio_mport *port;
+        int rc = -EBUSY;
+
+        mutex_lock(&rio_mport_list_lock);
+        list_for_each_entry(port, &rio_mports, node) {
+                if (port->id == mport_id || mport_id == RIO_MPORT_ANY) {
+                        if (port->nscan && mport_id == RIO_MPORT_ANY)
+                                continue;
+                        else if (port->nscan)
+                                break;
+
+                        port->nscan = scan_ops;
+                        rc = 0;
+
+                        if (mport_id != RIO_MPORT_ANY)
+                                break;
+                }
+        }
+        mutex_unlock(&rio_mport_list_lock);
+
+        return rc;
+}
+EXPORT_SYMBOL_GPL(rio_register_scan);
+
+/**
+ * rio_unregister_scan - removes enumeration/discovery method from mport
+ * @mport_id: mport device ID for which fabric scan routine has to be
+ *            unregistered (RIO_MPORT_ANY = set for all available mports)
+ *
+ * Removes enumeration or discovery method assigned to the specified mport
+ * device (or all available mports if RIO_MPORT_ANY is specified).
+ */
+int rio_unregister_scan(int mport_id)
+{
+        struct rio_mport *port;
+
+        mutex_lock(&rio_mport_list_lock);
+        list_for_each_entry(port, &rio_mports, node) {
+                if (port->id == mport_id || mport_id == RIO_MPORT_ANY) {
+                        if (port->nscan)
+                                port->nscan = NULL;
+                        if (mport_id != RIO_MPORT_ANY)
+                                break;
+                }
+        }
+        mutex_unlock(&rio_mport_list_lock);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(rio_unregister_scan);
+
 static void rio_fixup_device(struct rio_dev *dev)
 {
 }
@@ -1274,7 +1499,7 @@ static void disc_work_handler(struct work_struct *_work)
         work = container_of(_work, struct rio_disc_work, work);
         pr_debug("RIO: discovery work for mport %d %s\n",
                  work->mport->id, work->mport->name);
-        rio_disc_mport(work->mport);
+        work->mport->nscan->discover(work->mport, 0);
 }
 
 int rio_init_mports(void)
@@ -1290,12 +1515,15 @@ int rio_init_mports(void)
          * First, run enumerations and check if we need to perform discovery
          * on any of the registered mports.
          */
+        mutex_lock(&rio_mport_list_lock);
         list_for_each_entry(port, &rio_mports, node) {
-                if (port->host_deviceid >= 0)
-                        rio_enum_mport(port);
-                else
+                if (port->host_deviceid >= 0) {
+                        if (port->nscan)
+                                port->nscan->enumerate(port, 0);
+                } else
                         n++;
         }
+        mutex_unlock(&rio_mport_list_lock);
 
         if (!n)
                 goto no_disc;
@@ -1322,14 +1550,16 @@ int rio_init_mports(void)
         }
 
         n = 0;
+        mutex_lock(&rio_mport_list_lock);
         list_for_each_entry(port, &rio_mports, node) {
-                if (port->host_deviceid < 0) {
+                if (port->host_deviceid < 0 && port->nscan) {
                         work[n].mport = port;
                         INIT_WORK(&work[n].work, disc_work_handler);
                         queue_work(rio_wq, &work[n].work);
                         n++;
                 }
         }
+        mutex_unlock(&rio_mport_list_lock);
 
         flush_workqueue(rio_wq);
         pr_debug("RIO: destroy discovery workqueue\n");
@@ -1342,8 +1572,6 @@ no_disc:
         return 0;
 }
 
-device_initcall_sync(rio_init_mports);
-
 static int hdids[RIO_MAX_MPORTS + 1];
 
 static int rio_get_hdid(int index)
@@ -1371,7 +1599,10 @@ int rio_register_mport(struct rio_mport *port)
 
         port->id = next_portid++;
         port->host_deviceid = rio_get_hdid(port->id);
+        port->nscan = NULL;
+        mutex_lock(&rio_mport_list_lock);
         list_add_tail(&port->node, &rio_mports);
+        mutex_unlock(&rio_mport_list_lock);
         return 0;
 }
 
@@ -1386,3 +1617,4 @@ EXPORT_SYMBOL_GPL(rio_request_inb_mbox);
 EXPORT_SYMBOL_GPL(rio_release_inb_mbox);
 EXPORT_SYMBOL_GPL(rio_request_outb_mbox);
 EXPORT_SYMBOL_GPL(rio_release_outb_mbox);
+EXPORT_SYMBOL_GPL(rio_init_mports);
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h
index b1af414f15e6..c14f864dea5c 100644
--- a/drivers/rapidio/rio.h
+++ b/drivers/rapidio/rio.h
@@ -15,6 +15,7 @@
 #include <linux/rio.h>
 
 #define RIO_MAX_CHK_RETRY       3
+#define RIO_MPORT_ANY           (-1)
 
 /* Functions internal to the RIO core code */
 
@@ -27,8 +28,6 @@ extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
 extern int rio_mport_chk_dev_access(struct rio_mport *mport, u16 destid,
                                     u8 hopcount);
 extern int rio_create_sysfs_dev_files(struct rio_dev *rdev);
-extern int rio_enum_mport(struct rio_mport *mport);
-extern int rio_disc_mport(struct rio_mport *mport);
 extern int rio_std_route_add_entry(struct rio_mport *mport, u16 destid,
                                    u8 hopcount, u16 table, u16 route_destid,
                                    u8 route_port);
@@ -39,10 +38,18 @@ extern int rio_std_route_clr_table(struct rio_mport *mport, u16 destid,
                                    u8 hopcount, u16 table);
 extern int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock);
 extern struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from);
+extern int rio_add_device(struct rio_dev *rdev);
+extern void rio_switch_init(struct rio_dev *rdev, int do_enum);
+extern int rio_enable_rx_tx_port(struct rio_mport *port, int local, u16 destid,
+                                 u8 hopcount, u8 port_num);
+extern int rio_register_scan(int mport_id, struct rio_scan *scan_ops);
+extern int rio_unregister_scan(int mport_id);
+extern void rio_attach_device(struct rio_dev *rdev);
+extern struct rio_mport *rio_find_mport(int mport_id);
 
 /* Structures internal to the RIO core code */
 extern struct device_attribute rio_dev_attrs[];
-extern spinlock_t rio_global_list_lock;
+extern struct bus_attribute rio_bus_attrs[];
 
 extern struct rio_switch_ops __start_rio_switch_ops[];
 extern struct rio_switch_ops __end_rio_switch_ops[];
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 0c81915b1997..b9838130a7b0 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -20,7 +20,6 @@ if RTC_CLASS
 config RTC_HCTOSYS
         bool "Set system time from RTC on startup and resume"
         default y
-        depends on !ALWAYS_USE_PERSISTENT_CLOCK
         help
           If you say yes here, the system time (wall clock) will be set using
           the value read from a specified RTC device. This is useful to avoid
@@ -29,7 +28,6 @@ config RTC_HCTOSYS
 config RTC_SYSTOHC
         bool "Set the RTC time based on NTP synchronization"
         default y
-        depends on !ALWAYS_USE_PERSISTENT_CLOCK
         help
           If you say yes here, the system time (wall clock) will be stored
           in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
diff --git a/drivers/rtc/rtc-max8998.c b/drivers/rtc/rtc-max8998.c
index 48b6612fae7f..d5af7baa48b5 100644
--- a/drivers/rtc/rtc-max8998.c
+++ b/drivers/rtc/rtc-max8998.c
@@ -285,7 +285,7 @@ static int max8998_rtc_probe(struct platform_device *pdev)
                         info->irq, ret);
 
         dev_info(&pdev->dev, "RTC CHIP NAME: %s\n", pdev->id_entry->name);
-        if (pdata->rtc_delay) {
+        if (pdata && pdata->rtc_delay) {
                 info->lp3974_bug_workaround = true;
                 dev_warn(&pdev->dev, "LP3974 with RTC REGERR option."
                                 " RTC updates will be extremely slow.\n");
diff --git a/drivers/rtc/rtc-nuc900.c b/drivers/rtc/rtc-nuc900.c
index f5dfb6e5e7d9..d592e2fe43f7 100644
--- a/drivers/rtc/rtc-nuc900.c
+++ b/drivers/rtc/rtc-nuc900.c
@@ -234,11 +234,6 @@ static int __init nuc900_rtc_probe(struct platform_device *pdev)
                 return -ENOMEM;
         }
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "platform_get_resource failed\n");
-                return -ENXIO;
-        }
-
         nuc900_rtc->rtc_reg = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(nuc900_rtc->rtc_reg))
                 return PTR_ERR(nuc900_rtc->rtc_reg);
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 4e1bdb832e37..b0ba3fc991ea 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -347,11 +347,6 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                pr_debug("%s: RTC resource data missing\n", pdev->name);
-                return -ENOENT;
-        }
-
         rtc_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(rtc_base))
                 return PTR_ERR(rtc_base);
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index 8900ea784817..0f0609b1aa2c 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -306,7 +306,7 @@ static int pl031_remove(struct amba_device *adev)
         struct pl031_local *ldata = dev_get_drvdata(&adev->dev);
 
         amba_set_drvdata(adev, NULL);
-        free_irq(adev->irq[0], ldata->rtc);
+        free_irq(adev->irq[0], ldata);
         rtc_device_unregister(ldata->rtc);
         iounmap(ldata->base);
         kfree(ldata);
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 14040b22888d..0b495e8b8e66 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -477,11 +477,6 @@ static int s3c_rtc_probe(struct platform_device *pdev)
         /* get the memory region */
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (res == NULL) {
-                dev_err(&pdev->dev, "failed to get memory region resource\n");
-                return -ENOENT;
-        }
-
         s3c_rtc_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(s3c_rtc_base))
                 return PTR_ERR(s3c_rtc_base);
diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index a34315d25478..76af92ad5a8a 100644
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -322,12 +322,6 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
                 return -ENOMEM;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev,
-                        "Unable to allocate resources for device.\n");
-                return -EBUSY;
-        }
-
         info->rtc_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(info->rtc_base))
                 return PTR_ERR(info->rtc_base);
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 690c3338a8ae..464dd29d06c0 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -343,6 +343,7 @@ static int __init xpram_setup_blkdev(void)
                         put_disk(xpram_disks[i]);
                         goto out;
                 }
+                queue_flag_set_unlocked(QUEUE_FLAG_NONROT, xpram_queues[i]);
                 blk_queue_make_request(xpram_queues[i], xpram_make_request);
                 blk_queue_logical_block_size(xpram_queues[i], 4096);
         }
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c
index 21fabc6d5a9c..6c440d4349d4 100644
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -352,12 +352,48 @@ static ssize_t chp_shared_show(struct device *dev,
 
 static DEVICE_ATTR(shared, 0444, chp_shared_show, NULL);
 
+static ssize_t chp_chid_show(struct device *dev, struct device_attribute *attr,
+                             char *buf)
+{
+        struct channel_path *chp = to_channelpath(dev);
+        ssize_t rc;
+
+        mutex_lock(&chp->lock);
+        if (chp->desc_fmt1.flags & 0x10)
+                rc = sprintf(buf, "%04x\n", chp->desc_fmt1.chid);
+        else
+                rc = 0;
+        mutex_unlock(&chp->lock);
+
+        return rc;
+}
+static DEVICE_ATTR(chid, 0444, chp_chid_show, NULL);
+
+static ssize_t chp_chid_external_show(struct device *dev,
+                                      struct device_attribute *attr, char *buf)
+{
+        struct channel_path *chp = to_channelpath(dev);
+        ssize_t rc;
+
+        mutex_lock(&chp->lock);
+        if (chp->desc_fmt1.flags & 0x10)
+                rc = sprintf(buf, "%x\n", chp->desc_fmt1.flags & 0x8 ? 1 : 0);
+        else
+                rc = 0;
+        mutex_unlock(&chp->lock);
+
+        return rc;
+}
+static DEVICE_ATTR(chid_external, 0444, chp_chid_external_show, NULL);
+
 static struct attribute *chp_attrs[] = {
         &dev_attr_status.attr,
         &dev_attr_configure.attr,
         &dev_attr_type.attr,
         &dev_attr_cmg.attr,
         &dev_attr_shared.attr,
+        &dev_attr_chid.attr,
+        &dev_attr_chid_external.attr,
         NULL,
 };
 static struct attribute_group chp_attr_group = {
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 349d5fc47196..e7ef2a683b8f 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -43,7 +43,9 @@ struct channel_path_desc_fmt1 {
         u8 chpid;
         u32:24;
         u8 chpp;
-        u32 unused[3];
+        u32 unused[2];
+        u16 chid;
+        u32:16;
         u16 mdc;
         u16:13;
         u8 r:1;
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 787bd2c22bca..380387a47b1d 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -526,13 +526,17 @@ static void atmel_spi_next_xfer_pio(struct spi_master *master,
         }
 
         if (xfer->tx_buf)
-                spi_writel(as, TDR, *(u8 *)(xfer->tx_buf));
+                if (xfer->bits_per_word > 8)
+                        spi_writel(as, TDR, *(u16 *)(xfer->tx_buf));
+                else
+                        spi_writel(as, TDR, *(u8 *)(xfer->tx_buf));
         else
                 spi_writel(as, TDR, 0);
 
         dev_dbg(master->dev.parent,
-                "  start pio xfer %p: len %u tx %p rx %p\n",
-                xfer, xfer->len, xfer->tx_buf, xfer->rx_buf);
+                "  start pio xfer %p: len %u tx %p rx %p bitpw %d\n",
+                xfer, xfer->len, xfer->tx_buf, xfer->rx_buf,
+                xfer->bits_per_word);
 
         /* Enable relevant interrupts */
         spi_writel(as, IER, SPI_BIT(RDRF) | SPI_BIT(OVRES));
@@ -950,21 +954,39 @@ atmel_spi_pump_pio_data(struct atmel_spi *as, struct spi_transfer *xfer)
 {
         u8              *txp;
         u8              *rxp;
+        u16             *txp16;
+        u16             *rxp16;
         unsigned long   xfer_pos = xfer->len - as->current_remaining_bytes;
 
         if (xfer->rx_buf) {
-                rxp = ((u8 *)xfer->rx_buf) + xfer_pos;
-                *rxp = spi_readl(as, RDR);
+                if (xfer->bits_per_word > 8) {
+                        rxp16 = (u16 *)(((u8 *)xfer->rx_buf) + xfer_pos);
+                        *rxp16 = spi_readl(as, RDR);
+                } else {
+                        rxp = ((u8 *)xfer->rx_buf) + xfer_pos;
+                        *rxp = spi_readl(as, RDR);
+                }
         } else {
                 spi_readl(as, RDR);
         }
-
-        as->current_remaining_bytes--;
+        if (xfer->bits_per_word > 8) {
+                as->current_remaining_bytes -= 2;
+                if (as->current_remaining_bytes < 0)
+                        as->current_remaining_bytes = 0;
+        } else {
+                as->current_remaining_bytes--;
+        }
 
         if (as->current_remaining_bytes) {
                 if (xfer->tx_buf) {
-                        txp = ((u8 *)xfer->tx_buf) + xfer_pos + 1;
-                        spi_writel(as, TDR, *txp);
+                        if (xfer->bits_per_word > 8) {
+                                txp16 = (u16 *)(((u8 *)xfer->tx_buf)
+                                                        + xfer_pos + 2);
+                                spi_writel(as, TDR, *txp16);
+                        } else {
+                                txp = ((u8 *)xfer->tx_buf) + xfer_pos + 1;
+                                spi_writel(as, TDR, *txp);
+                        }
                 } else {
                         spi_writel(as, TDR, 0);
                 }
@@ -1378,9 +1400,16 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg)
                         }
                 }
 
+                if (xfer->bits_per_word > 8) {
+                        if (xfer->len % 2) {
+                                dev_dbg(&spi->dev, "buffer len should be 16 bits aligned\n");
+                                return -EINVAL;
+                        }
+                }
+
                 /* FIXME implement these protocol options!! */
-                if (xfer->speed_hz) {
-                        dev_dbg(&spi->dev, "no protocol options yet\n");
+                if (xfer->speed_hz < spi->max_speed_hz) {
+                        dev_dbg(&spi->dev, "can't change speed in transfer\n");
                         return -ENOPROTOOPT;
                 }
 
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 2e8f24a1fb95..50b13c9b1ab6 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -784,7 +784,7 @@ static const struct of_device_id davinci_spi_of_match[] = {
         },
         { },
 };
-MODULE_DEVICE_TABLE(of, davini_spi_of_match);
+MODULE_DEVICE_TABLE(of, davinci_spi_of_match);
 
 /**
  * spi_davinci_get_pdata - Get platform data from DTS binding
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index d65c000efe35..09df8e22dba0 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -489,11 +489,6 @@ static int tegra_sflash_probe(struct platform_device *pdev)
         tegra_sflash_parse_dt(tsd);
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!r) {
-                dev_err(&pdev->dev, "No IO memory resource\n");
-                ret = -ENODEV;
-                goto exit_free_master;
-        }
         tsd->base = devm_ioremap_resource(&pdev->dev, r);
         if (IS_ERR(tsd->base)) {
                 ret = PTR_ERR(tsd->base);
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 163fd802b7ac..32b7bb111eb6 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -334,7 +334,7 @@ struct spi_device *spi_alloc_device(struct spi_master *master)
         spi->dev.parent = &master->dev;
         spi->dev.bus = &spi_bus_type;
         spi->dev.release = spidev_release;
-        spi->cs_gpio = -EINVAL;
+        spi->cs_gpio = -ENOENT;
         device_initialize(&spi->dev);
         return spi;
 }
@@ -1067,8 +1067,11 @@ static int of_spi_register_master(struct spi_master *master)
         nb = of_gpio_named_count(np, "cs-gpios");
         master->num_chipselect = max(nb, (int)master->num_chipselect);
 
-        if (nb < 1)
+        /* Return error only for an incorrectly formed cs-gpios property */
+        if (nb == 0 || nb == -ENOENT)
                 return 0;
+        else if (nb < 0)
+                return nb;
 
         cs = devm_kzalloc(&master->dev,
                           sizeof(int) * master->num_chipselect,
@@ -1079,7 +1082,7 @@ static int of_spi_register_master(struct spi_master *master)
                 return -ENOMEM;
 
         for (i = 0; i < master->num_chipselect; i++)
-                cs[i] = -EINVAL;
+                cs[i] = -ENOENT;
 
         for (i = 0; i < nb; i++)
                 cs[i] = of_get_named_gpio(np, "cs-gpios", i);
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 4e8a1794f50a..aefe820a8005 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -72,10 +72,10 @@ source "drivers/staging/sep/Kconfig"
 
 source "drivers/staging/iio/Kconfig"
 
-source "drivers/staging/zram/Kconfig"
-
 source "drivers/staging/zsmalloc/Kconfig"
 
+source "drivers/staging/zram/Kconfig"
+
 source "drivers/staging/wlags49_h2/Kconfig"
 
 source "drivers/staging/wlags49_h25/Kconfig"
diff --git a/drivers/staging/android/logger.c b/drivers/staging/android/logger.c
index b040200a5a55..9bd874789ce5 100644
--- a/drivers/staging/android/logger.c
+++ b/drivers/staging/android/logger.c
@@ -242,7 +242,7 @@ static ssize_t do_read_log_to_user(struct logger_log *log,
  * 'log->buffer' which contains the first entry readable by 'euid'
  */
 static size_t get_next_entry_by_uid(struct logger_log *log,
-                size_t off, uid_t euid)
+                size_t off, kuid_t euid)
 {
         while (off != log->w_off) {
                 struct logger_entry *entry;
@@ -251,7 +251,7 @@ static size_t get_next_entry_by_uid(struct logger_log *log,
 
                 entry = get_entry_header(log, off, &scratch);
 
-                if (entry->euid == euid)
+                if (uid_eq(entry->euid, euid))
                         return off;
 
                 next_len = sizeof(struct logger_entry) + entry->len;
diff --git a/drivers/staging/android/logger.h b/drivers/staging/android/logger.h
index cc6bbd99c8e0..70af7d805dff 100644
--- a/drivers/staging/android/logger.h
+++ b/drivers/staging/android/logger.h
@@ -66,7 +66,7 @@ struct logger_entry {
         __s32           tid;
         __s32           sec;
         __s32           nsec;
-        uid_t           euid;
+        kuid_t          euid;
         char            msg[0];
 };
 
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 7871579bb83d..87e852a0ef49 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -981,6 +981,7 @@ config COMEDI_ME_DAQ
 
 config COMEDI_NI_6527
         tristate "NI 6527 support"
+        depends on HAS_DMA
         select COMEDI_MITE
         ---help---
           Enable support for the National Instruments 6527 PCI card
@@ -990,6 +991,7 @@ config COMEDI_NI_6527
 
 config COMEDI_NI_65XX
         tristate "NI 65xx static dio PCI card support"
+        depends on HAS_DMA
         select COMEDI_MITE
         ---help---
           Enable support for National Instruments 65xx static dio boards.
@@ -1003,6 +1005,7 @@ config COMEDI_NI_65XX
 
 config COMEDI_NI_660X
         tristate "NI 660x counter/timer PCI card support"
+        depends on HAS_DMA
         select COMEDI_NI_TIOCMD
         ---help---
           Enable support for National Instruments PCI-6601 (ni_660x), PCI-6602,
@@ -1013,6 +1016,7 @@ config COMEDI_NI_660X
 
 config COMEDI_NI_670X
         tristate "NI 670x PCI card support"
+        depends on HAS_DMA
         select COMEDI_MITE
         ---help---
           Enable support for National Instruments PCI-6703 and PCI-6704
@@ -1022,6 +1026,7 @@ config COMEDI_NI_670X
 
 config COMEDI_NI_LABPC_PCI
         tristate "NI Lab-PC PCI-1200 support"
+        depends on HAS_DMA
         select COMEDI_NI_LABPC
         select COMEDI_MITE
         ---help---
@@ -1032,6 +1037,7 @@ config COMEDI_NI_LABPC_PCI
 
 config COMEDI_NI_PCIDIO
         tristate "NI PCI-DIO32HS, PCI-6533, PCI-6534 support"
+        depends on HAS_DMA
         select COMEDI_MITE
         select COMEDI_8255
         ---help---
@@ -1043,6 +1049,7 @@ config COMEDI_NI_PCIDIO
 
 config COMEDI_NI_PCIMIO
         tristate "NI PCI-MIO-E series and M series support"
+        depends on HAS_DMA
         select COMEDI_NI_TIOCMD
         select COMEDI_8255
         select COMEDI_FC
@@ -1095,10 +1102,12 @@ config COMEDI_SSV_DNP
           called ssv_dnp.
 
 config COMEDI_MITE
+        depends on HAS_DMA
         tristate
 
 config COMEDI_NI_TIOCMD
         tristate
+        depends on HAS_DMA
         select COMEDI_NI_TIO
         select COMEDI_MITE
 
diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c
index ca709901fb3e..d4be0e68509b 100644
--- a/drivers/staging/comedi/comedi_buf.c
+++ b/drivers/staging/comedi/comedi_buf.c
@@ -51,10 +51,12 @@ static void __comedi_buf_free(struct comedi_device *dev,
                         clear_bit(PG_reserved,
                                   &(virt_to_page(buf->virt_addr)->flags));
                         if (s->async_dma_dir != DMA_NONE) {
+#ifdef CONFIG_HAS_DMA
                                 dma_free_coherent(dev->hw_dev,
                                                   PAGE_SIZE,
                                                   buf->virt_addr,
                                                   buf->dma_addr);
+#endif
                         } else {
                                 free_page((unsigned long)buf->virt_addr);
                         }
@@ -74,6 +76,12 @@ static void __comedi_buf_alloc(struct comedi_device *dev,
         struct comedi_buf_page *buf;
         unsigned i;
 
+        if (!IS_ENABLED(CONFIG_HAS_DMA) && s->async_dma_dir != DMA_NONE) {
+                dev_err(dev->class_dev,
+                        "dma buffer allocation not supported\n");
+                return;
+        }
+
         async->buf_page_list = vzalloc(sizeof(*buf) * n_pages);
         if (async->buf_page_list)
                 pages = vmalloc(sizeof(struct page *) * n_pages);
@@ -84,11 +92,15 @@ static void __comedi_buf_alloc(struct comedi_device *dev,
         for (i = 0; i < n_pages; i++) {
                 buf = &async->buf_page_list[i];
                 if (s->async_dma_dir != DMA_NONE)
+#ifdef CONFIG_HAS_DMA
                         buf->virt_addr = dma_alloc_coherent(dev->hw_dev,
                                                             PAGE_SIZE,
                                                             &buf->dma_addr,
                                                             GFP_KERNEL |
                                                             __GFP_COMP);
+#else
+                        break;
+#endif
                 else
                         buf->virt_addr = (void *)get_zeroed_page(GFP_KERNEL);
                 if (!buf->virt_addr)
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 00f2547024ec..924c54c9c31f 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -246,9 +246,6 @@ static int resize_async_buffer(struct comedi_device *dev,
                 return -EBUSY;
         }
 
-        if (!async->prealloc_buf)
-                return -EINVAL;
-
         /* make sure buffer is an integral number of pages
          * (we round up) */
         new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK;
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 3d978f34d212..77a7bb632580 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -976,8 +976,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
                 /* clear flip-flop to make sure 2-byte registers for
                  * count and address get set correctly */
                 clear_dma_ff(devpriv->dma_chan);
-                set_dma_addr(devpriv->dma_chan,
-                             virt_to_bus(devpriv->dma_buffer));
+                set_dma_addr(devpriv->dma_chan, devpriv->dma_addr);
                 /*  set appropriate size of transfer */
                 devpriv->dma_transfer_size = labpc_suggest_transfer_size(cmd);
                 if (cmd->stop_src == TRIG_COUNT &&
@@ -1089,7 +1088,7 @@ static void labpc_drain_dma(struct comedi_device *dev)
                 devpriv->count -= num_points;
 
         /*  set address and count for next transfer */
-        set_dma_addr(devpriv->dma_chan, virt_to_bus(devpriv->dma_buffer));
+        set_dma_addr(devpriv->dma_chan, devpriv->dma_addr);
         set_dma_count(devpriv->dma_chan, leftover * sample_size);
         release_dma_lock(flags);
 
@@ -1741,6 +1740,9 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
                                 unsigned long dma_flags;
 
                                 devpriv->dma_chan = dma_chan;
+                                devpriv->dma_addr =
+                                        virt_to_bus(devpriv->dma_buffer);
+
                                 dma_flags = claim_dma_lock();
                                 disable_dma(devpriv->dma_chan);
                                 set_dma_mode(devpriv->dma_chan, DMA_MODE_READ);
diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h
index 615f16f271c0..4b691f5a9965 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.h
+++ b/drivers/staging/comedi/drivers/ni_labpc.h
@@ -82,6 +82,7 @@ struct labpc_private {
         unsigned int divisor_b1;
         unsigned int dma_chan;  /*  dma channel to use */
         u16 *dma_buffer;        /*  buffer ai will dma into */
+        phys_addr_t dma_addr;
         /* transfer size in bytes for current transfer */
         unsigned int dma_transfer_size;
         /* we are using dma/fifo-half-full/etc. */
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index a46d579016d9..8c5dee9b3b05 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -310,9 +310,11 @@ static int ni_gpct_insn_read(struct comedi_device *dev,
 static int ni_gpct_insn_config(struct comedi_device *dev,
                                struct comedi_subdevice *s,
                                struct comedi_insn *insn, unsigned int *data);
+#ifdef PCIDMA
 static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s);
 static int ni_gpct_cmdtest(struct comedi_device *dev,
                            struct comedi_subdevice *s, struct comedi_cmd *cmd);
+#endif
 static int ni_gpct_cancel(struct comedi_device *dev,
                           struct comedi_subdevice *s);
 static void handle_gpct_interrupt(struct comedi_device *dev,
@@ -4617,9 +4619,7 @@ static int ni_E_init(struct comedi_device *dev)
         for (j = 0; j < NUM_GPCT; ++j) {
                 s = &dev->subdevices[NI_GPCT_SUBDEV(j)];
                 s->type = COMEDI_SUBD_COUNTER;
-                s->subdev_flags =
-                    SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_CMD_READ
-                    /* | SDF_CMD_WRITE */ ;
+                s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL;
                 s->n_chan = 3;
                 if (board->reg_type & ni_reg_m_series_mask)
                         s->maxdata = 0xffffffff;
@@ -4628,11 +4628,14 @@ static int ni_E_init(struct comedi_device *dev)
                 s->insn_read = &ni_gpct_insn_read;
                 s->insn_write = &ni_gpct_insn_write;
                 s->insn_config = &ni_gpct_insn_config;
+#ifdef PCIDMA
+                s->subdev_flags |= SDF_CMD_READ /* | SDF_CMD_WRITE */;
                 s->do_cmd = &ni_gpct_cmd;
                 s->len_chanlist = 1;
                 s->do_cmdtest = &ni_gpct_cmdtest;
                 s->cancel = &ni_gpct_cancel;
                 s->async_dma_dir = DMA_BIDIRECTIONAL;
+#endif
                 s->private = &devpriv->counter_dev->counters[j];
 
                 devpriv->counter_dev->counters[j].chip_index = 0;
@@ -5216,10 +5219,10 @@ static int ni_gpct_insn_write(struct comedi_device *dev,
         return ni_tio_winsn(counter, insn, data);
 }
 
+#ifdef PCIDMA
 static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
         int retval;
-#ifdef PCIDMA
         struct ni_gpct *counter = s->private;
 /* const struct comedi_cmd *cmd = &s->async->cmd; */
 
@@ -5233,23 +5236,20 @@ static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
         ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL, NULL);
         ni_e_series_enable_second_irq(dev, counter->counter_index, 1);
         retval = ni_tio_cmd(counter, s->async);
-#else
-        retval = -ENOTSUPP;
-#endif
         return retval;
 }
+#endif
 
+#ifdef PCIDMA
 static int ni_gpct_cmdtest(struct comedi_device *dev,
                            struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
-#ifdef PCIDMA
         struct ni_gpct *counter = s->private;
 
         return ni_tio_cmdtest(counter, cmd);
-#else
         return -ENOTSUPP;
-#endif
 }
+#endif
 
 static int ni_gpct_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
diff --git a/drivers/staging/dwc2/Kconfig b/drivers/staging/dwc2/Kconfig
index f0b4739c65a1..d15d9d58e5ac 100644
--- a/drivers/staging/dwc2/Kconfig
+++ b/drivers/staging/dwc2/Kconfig
@@ -2,7 +2,6 @@ config USB_DWC2
         tristate "DesignWare USB2 DRD Core Support"
         depends on USB
         depends on VIRT_TO_BUS
-        select USB_OTG_UTILS
         help
           Say Y or M here if your system has a Dual Role HighSpeed
           USB controller based on the DesignWare HSOTG IP Core.
@@ -39,6 +38,7 @@ config USB_DWC2_TRACK_MISSED_SOFS
         bool "Enable Missed SOF Tracking"
         help
           Say Y here to enable logging of missed SOF events to the dmesg log.
+          WARNING: This feature is still experimental.
           If in doubt, say N.
 
 config USB_DWC2_DEBUG_PERIODIC
diff --git a/drivers/staging/dwc2/hcd_intr.c b/drivers/staging/dwc2/hcd_intr.c
index 6e5dbed6ccec..e24062f0a49e 100644
--- a/drivers/staging/dwc2/hcd_intr.c
+++ b/drivers/staging/dwc2/hcd_intr.c
@@ -56,8 +56,6 @@
 static void dwc2_track_missed_sofs(struct dwc2_hsotg *hsotg)
 {
 #ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS
-#warning Compiling code to track missed SOFs
-
         u16 curr_frame_number = hsotg->frame_number;
 
         if (hsotg->frame_num_idx < FRAME_NUM_ARRAY_SIZE) {
diff --git a/drivers/staging/dwc2/platform.c b/drivers/staging/dwc2/platform.c
index 1f3d581a1078..44cce2fa6361 100644
--- a/drivers/staging/dwc2/platform.c
+++ b/drivers/staging/dwc2/platform.c
@@ -95,6 +95,14 @@ static int dwc2_driver_probe(struct platform_device *dev)
 
         hsotg->dev = &dev->dev;
 
+        /*
+         * Use reasonable defaults so platforms don't have to provide these.
+         */
+        if (!dev->dev.dma_mask)
+                dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
+        if (!dev->dev.coherent_dma_mask)
+                dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+
         irq = platform_get_irq(dev, 0);
         if (irq < 0) {
                 dev_err(&dev->dev, "missing IRQ resource\n");
@@ -102,11 +110,6 @@ static int dwc2_driver_probe(struct platform_device *dev)
         }
 
         res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&dev->dev, "missing memory base resource\n");
-                return -EINVAL;
-        }
-
         hsotg->regs = devm_ioremap_resource(&dev->dev, res);
         if (IS_ERR(hsotg->regs))
                 return PTR_ERR(hsotg->regs);
diff --git a/drivers/staging/gdm72xx/Kconfig b/drivers/staging/gdm72xx/Kconfig
index 3c18efe31365..69059138de4a 100644
--- a/drivers/staging/gdm72xx/Kconfig
+++ b/drivers/staging/gdm72xx/Kconfig
@@ -39,7 +39,7 @@ if WIMAX_GDM72XX_USB
 
 config WIMAX_GDM72XX_USB_PM
         bool "Enable power managerment support"
-        depends on USB_SUSPEND
+        depends on PM_RUNTIME
 
 endif # WIMAX_GDM72XX_USB
 
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 2856b8fd44ad..163c638e4095 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -690,7 +690,6 @@ static void mxs_lradc_trigger_remove(struct iio_dev *iio)
 static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
 {
         struct mxs_lradc *lradc = iio_priv(iio);
-        struct iio_buffer *buffer = iio->buffer;
         int ret = 0, chan, ofs = 0;
         unsigned long enable = 0;
         uint32_t ctrl4_set = 0;
@@ -698,7 +697,7 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
         uint32_t ctrl1_irq = 0;
         const uint32_t chan_value = LRADC_CH_ACCUMULATE |
                 ((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET);
-        const int len = bitmap_weight(buffer->scan_mask, LRADC_MAX_TOTAL_CHANS);
+        const int len = bitmap_weight(iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS);
 
         if (!len)
                 return -EINVAL;
@@ -725,7 +724,7 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
                 lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
         writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
 
-        for_each_set_bit(chan, buffer->scan_mask, LRADC_MAX_TOTAL_CHANS) {
+        for_each_set_bit(chan, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) {
                 ctrl4_set |= chan << LRADC_CTRL4_LRADCSELECT_OFFSET(ofs);
                 ctrl4_clr |= LRADC_CTRL4_LRADCSELECT_MASK(ofs);
                 ctrl1_irq |= LRADC_CTRL1_LRADC_IRQ_EN(ofs);
diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index d060f2572512..c99f890cc6c6 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -1869,6 +1869,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
                 dev_info(&chip->client->dev,
                                 "%s: i2c device found does not match expected id\n",
                                 __func__);
+                ret = -EINVAL;
                 goto fail1;
         }
 
@@ -1907,7 +1908,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
                 if (ret) {
                         dev_err(&clientp->dev,
                                 "%s: irq request failed", __func__);
-                        goto fail2;
+                        goto fail1;
                 }
         }
 
@@ -1920,17 +1921,17 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
         if (ret) {
                 dev_err(&clientp->dev,
                         "%s: iio registration failed\n", __func__);
-                goto fail1;
+                goto fail2;
         }
 
         dev_info(&clientp->dev, "%s Light sensor found.\n", id->name);
 
         return 0;
 
-fail1:
+fail2:
         if (clientp->irq)
                 free_irq(clientp->irq, indio_dev);
-fail2:
+fail1:
         iio_device_free(indio_dev);
 
         return ret;
diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig
index 8c9e40390f42..ef699f753186 100644
--- a/drivers/staging/imx-drm/Kconfig
+++ b/drivers/staging/imx-drm/Kconfig
@@ -1,6 +1,7 @@
 config DRM_IMX
         tristate "DRM Support for Freescale i.MX"
         select DRM_KMS_HELPER
+        select VIDEOMODE_HELPERS
         select DRM_GEM_CMA_HELPER
         select DRM_KMS_CMA_HELPER
         depends on DRM && (ARCH_MXC || ARCH_MULTIPLATFORM)
@@ -19,10 +20,12 @@ config DRM_IMX_FB_HELPER
 config DRM_IMX_PARALLEL_DISPLAY
         tristate "Support for parallel displays"
         depends on DRM_IMX
+        select VIDEOMODE_HELPERS
 
 config DRM_IMX_TVE
         tristate "Support for TV and VGA displays"
         depends on DRM_IMX
+        select REGMAP_MMIO
         help
           Choose this to enable the internal Television Encoder (TVe)
           found on i.MX53 processors.
@@ -30,6 +33,7 @@ config DRM_IMX_TVE
 config DRM_IMX_IPUV3_CORE
         tristate "IPUv3 core support"
         depends on DRM_IMX
+        depends on RESET_CONTROLLER
         help
           Choose this if you have a i.MX5/6 system and want
           to use the IPU. This option only enables IPU base
@@ -38,5 +42,6 @@ config DRM_IMX_IPUV3_CORE
 config DRM_IMX_IPUV3
         tristate "DRM Support for i.MX IPUv3"
         depends on DRM_IMX
+        depends on DRM_IMX_IPUV3_CORE
         help
           Choose this if you have a i.MX5 or i.MX6 processor.
diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c
index ac1634464407..03892de9bd7e 100644
--- a/drivers/staging/imx-drm/imx-tve.c
+++ b/drivers/staging/imx-drm/imx-tve.c
@@ -670,7 +670,9 @@ static int imx_tve_probe(struct platform_device *pdev)
         tve->dac_reg = devm_regulator_get(&pdev->dev, "dac");
         if (!IS_ERR(tve->dac_reg)) {
                 regulator_set_voltage(tve->dac_reg, 2750000, 2750000);
-                regulator_enable(tve->dac_reg);
+                ret = regulator_enable(tve->dac_reg);
+                if (ret)
+                        return ret;
         }
 
         tve->clk = devm_clk_get(&pdev->dev, "tve");
diff --git a/drivers/staging/media/solo6x10/Kconfig b/drivers/staging/media/solo6x10/Kconfig
index ec32776ff547..df6569b997b8 100644
--- a/drivers/staging/media/solo6x10/Kconfig
+++ b/drivers/staging/media/solo6x10/Kconfig
@@ -1,6 +1,7 @@
 config SOLO6X10
         tristate "Softlogic 6x10 MPEG codec cards"
         depends on PCI && VIDEO_DEV && SND && I2C
+        depends on FONTS
         select VIDEOBUF2_DMA_SG
         select VIDEOBUF2_DMA_CONTIG
         select SND_PCM
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index a88959f9a07a..197c393c4ca7 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -124,6 +124,20 @@ int nvec_register_notifier(struct nvec_chip *nvec, struct notifier_block *nb,
 EXPORT_SYMBOL_GPL(nvec_register_notifier);
 
 /**
+ * nvec_unregister_notifier - Unregister a notifier with nvec
+ * @nvec: A &struct nvec_chip
+ * @nb: The notifier block to unregister
+ *
+ * Unregisters a notifier with @nvec. The notifier will be removed from the
+ * atomic notifier chain.
+ */
+int nvec_unregister_notifier(struct nvec_chip *nvec, struct notifier_block *nb)
+{
+        return atomic_notifier_chain_unregister(&nvec->notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(nvec_unregister_notifier);
+
+/**
  * nvec_status_notifier - The final notifier
  *
  * Prints a message about control events not handled in the notifier
@@ -185,7 +199,7 @@ static struct nvec_msg *nvec_msg_alloc(struct nvec_chip *nvec,
  *
  * Free the given message
  */
-inline void nvec_msg_free(struct nvec_chip *nvec, struct nvec_msg *msg)
+void nvec_msg_free(struct nvec_chip *nvec, struct nvec_msg *msg)
 {
         if (msg != &nvec->tx_scratch)
                 dev_vdbg(nvec->dev, "INFO: Free %ti\n", msg - nvec->msg_pool);
@@ -800,11 +814,6 @@ static int tegra_nvec_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "no mem resource?\n");
-                return -ENODEV;
-        }
-
         base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(base))
                 return PTR_ERR(base);
@@ -815,7 +824,7 @@ static int tegra_nvec_probe(struct platform_device *pdev)
                 return -ENODEV;
         }
 
-        i2c_clk = clk_get(&pdev->dev, "div-clk");
+        i2c_clk = devm_clk_get(&pdev->dev, "div-clk");
         if (IS_ERR(i2c_clk)) {
                 dev_err(nvec->dev, "failed to get controller clock\n");
                 return -ENODEV;
@@ -902,8 +911,11 @@ static int tegra_nvec_remove(struct platform_device *pdev)
 
         nvec_toggle_global_events(nvec, false);
         mfd_remove_devices(nvec->dev);
+        nvec_unregister_notifier(nvec, &nvec->nvec_status_notifier);
         cancel_work_sync(&nvec->rx_work);
         cancel_work_sync(&nvec->tx_work);
+        /* FIXME: needs check wether nvec is responsible for power off */
+        pm_power_off = NULL;
 
         return 0;
 }
diff --git a/drivers/staging/nvec/nvec.h b/drivers/staging/nvec/nvec.h
index b7a14bc0ab91..2b1316d87470 100644
--- a/drivers/staging/nvec/nvec.h
+++ b/drivers/staging/nvec/nvec.h
@@ -197,9 +197,8 @@ extern int nvec_register_notifier(struct nvec_chip *nvec,
                                   struct notifier_block *nb,
                                   unsigned int events);
 
-extern int nvec_unregister_notifier(struct device *dev,
-                                    struct notifier_block *nb,
-                                    unsigned int events);
+extern int nvec_unregister_notifier(struct nvec_chip *dev,
+                                    struct notifier_block *nb);
 
 extern void nvec_msg_free(struct nvec_chip *nvec, struct nvec_msg *msg);
 
diff --git a/drivers/staging/nvec/nvec_kbd.c b/drivers/staging/nvec/nvec_kbd.c
index 7445ce6422bb..a0ec52a4114f 100644
--- a/drivers/staging/nvec/nvec_kbd.c
+++ b/drivers/staging/nvec/nvec_kbd.c
@@ -169,8 +169,15 @@ fail:
 
 static int nvec_kbd_remove(struct platform_device *pdev)
 {
+        struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
+        char disable_kbd[] = { NVEC_KBD, DISABLE_KBD },
+             uncnfg_wake_key_reporting[] = { NVEC_KBD, CNFG_WAKE_KEY_REPORTING,
+                                                false };
+        nvec_write_async(nvec, uncnfg_wake_key_reporting, 3);
+        nvec_write_async(nvec, disable_kbd, 2);
+        nvec_unregister_notifier(nvec, &keys_dev.notifier);
+
         input_unregister_device(keys_dev.input);
-        input_free_device(keys_dev.input);
 
         return 0;
 }
@@ -188,4 +195,5 @@ module_platform_driver(nvec_kbd_driver);
 
 MODULE_AUTHOR("Marc Dietrich <marvin24@gmx.de>");
 MODULE_DESCRIPTION("NVEC keyboard driver");
+MODULE_ALIAS("platform:nvec-kbd");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/nvec/nvec_power.c b/drivers/staging/nvec/nvec_power.c
index 296f7b9a8c8c..aacfcd6954a3 100644
--- a/drivers/staging/nvec/nvec_power.c
+++ b/drivers/staging/nvec/nvec_power.c
@@ -414,6 +414,7 @@ static int nvec_power_remove(struct platform_device *pdev)
         struct nvec_power *power = platform_get_drvdata(pdev);
 
         cancel_delayed_work_sync(&power->poller);
+        nvec_unregister_notifier(power->nvec, &power->notifier);
         switch (pdev->id) {
         case AC:
                 power_supply_unregister(&nvec_psy);
diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c
index aff6b9b9f9aa..06dbb02085a9 100644
--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/drivers/staging/nvec/nvec_ps2.c
@@ -106,7 +106,7 @@ static int nvec_mouse_probe(struct platform_device *pdev)
         struct serio *ser_dev;
         char mouse_reset[] = { NVEC_PS2, SEND_COMMAND, PSMOUSE_RST, 3 };
 
-        ser_dev = devm_kzalloc(&pdev->dev, sizeof(struct serio), GFP_KERNEL);
+        ser_dev = kzalloc(sizeof(struct serio), GFP_KERNEL);
         if (ser_dev == NULL)
                 return -ENOMEM;
 
@@ -133,6 +133,11 @@ static int nvec_mouse_probe(struct platform_device *pdev)
 
 static int nvec_mouse_remove(struct platform_device *pdev)
 {
+        struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
+
+        ps2_sendcommand(ps2_dev.ser_dev, DISABLE_MOUSE);
+        ps2_stopstreaming(ps2_dev.ser_dev);
+        nvec_unregister_notifier(nvec, &ps2_dev.notifier);
         serio_unregister_port(ps2_dev.ser_dev);
 
         return 0;
@@ -179,4 +184,5 @@ module_platform_driver(nvec_mouse_driver);
 
 MODULE_DESCRIPTION("NVEC mouse driver");
 MODULE_AUTHOR("Marc Dietrich <marvin24@gmx.de>");
+MODULE_ALIAS("platform:nvec-mouse");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/sep/Kconfig b/drivers/staging/sep/Kconfig
index 185b676d858a..aab945a316ea 100644
--- a/drivers/staging/sep/Kconfig
+++ b/drivers/staging/sep/Kconfig
@@ -1,6 +1,6 @@
 config DX_SEP
         tristate "Discretix SEP driver"
-        depends on PCI
+        depends on PCI && CRYPTO
         help
           Discretix SEP driver; used for the security processor subsystem
           on board the Intel Mobile Internet Device and adds SEP availability
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
index fe667dde43ce..386362c9964f 100644
--- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
+++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
@@ -1087,7 +1087,11 @@ static int synaptics_rmi4_resume(struct device *dev)
         unsigned char intr_status;
         struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev);
 
-        regulator_enable(rmi4_data->regulator);
+        retval = regulator_enable(rmi4_data->regulator);
+        if (retval) {
+                dev_err(dev, "Regulator enable failed (%d)\n", retval);
+                return retval;
+        }
 
         enable_irq(rmi4_data->i2c_client->irq);
         rmi4_data->touch_stopped = false;
diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index f4f1bf7a30fd..c699a3058b39 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -133,7 +133,7 @@ static int hostap_disable_hostapd(struct vnt_private *pDevice, int rtnl_locked)
             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Netdevice %s unregistered\n",
                        pDevice->dev->name, pDevice->apdev->name);
         }
-        kfree(pDevice->apdev);
+        free_netdev(pDevice->apdev);
         pDevice->apdev = NULL;
     pDevice->bEnable8021x = false;
     pDevice->bEnableHostWEP = false;
diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index c335808211ee..d0cf7d8a20e5 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -1345,9 +1345,12 @@ int iwctl_siwpower(struct net_device *dev, struct iw_request_info *info,
                 return rc;
         }
 
+        spin_lock_irq(&pDevice->lock);
+
         if (wrq->disabled) {
                 pDevice->ePSMode = WMAC_POWER_CAM;
                 PSvDisablePowerSaving(pDevice);
+                spin_unlock_irq(&pDevice->lock);
                 return rc;
         }
         if ((wrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
@@ -1358,6 +1361,9 @@ int iwctl_siwpower(struct net_device *dev, struct iw_request_info *info,
                 pDevice->ePSMode = WMAC_POWER_FAST;
                 PSvEnablePowerSaving((void *)pDevice, pMgmt->wListenInterval);
         }
+
+        spin_unlock_irq(&pDevice->lock);
+
         switch (wrq->flags & IW_POWER_MODE) {
         case IW_POWER_UNICAST_R:
                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWPOWER: IW_POWER_UNICAST_R \n");
diff --git a/drivers/staging/zcache/ramster/ramster-howto.txt b/drivers/staging/zcache/ramster/ramster-howto.txt
new file mode 100644
index 000000000000..7b1ee3bbfdd5
--- /dev/null
+++ b/drivers/staging/zcache/ramster/ramster-howto.txt
@@ -0,0 +1,366 @@
+                        RAMSTER HOW-TO
+
+Author: Dan Magenheimer
+Ramster maintainer: Konrad Wilk <konrad.wilk@oracle.com>
+
+This is a HOWTO document for ramster which, as of this writing, is in
+the kernel as a subdirectory of zcache in drivers/staging, called ramster.
+(Zcache can be built with or without ramster functionality.)  If enabled
+and properly configured, ramster allows memory capacity load balancing
+across multiple machines in a cluster.  Further, the ramster code serves
+as an example of asynchronous access for zcache (as well as cleancache and
+frontswap) that may prove useful for future transcendent memory
+implementations, such as KVM and NVRAM.  While ramster works today on
+any network connection that supports kernel sockets, its features may
+become more interesting on future high-speed fabrics/interconnects.
+
+Ramster requires both kernel and userland support.  The userland support,
+called ramster-tools, is known to work with EL6-based distros, but is a
+set of poorly-hacked slightly-modified cluster tools based on ocfs2, which
+includes an init file, a config file, and a userland binary that interfaces
+to the kernel.  This state of userland support reflects the abysmal userland
+skills of this suitably-embarrassed author; any help/patches to turn
+ramster-tools into more distributable rpms/debs useful for a wider range
+of distros would be appreciated.  The source RPM that can be used as a
+starting point is available at:
+    http://oss.oracle.com/projects/tmem/files/RAMster/ 
+
+As a result of this author's ignorance, userland setup described in this
+HOWTO assumes an EL6 distro and is described in EL6 syntax.  Apologies
+if this offends anyone!
+
+Kernel support has only been tested on x86_64.  Systems with an active
+ocfs2 filesystem should work, but since ramster leverages a lot of
+code from ocfs2, there may be latent issues.  A kernel configuration that
+includes CONFIG_OCFS2_FS should build OK, and should certainly run OK
+if no ocfs2 filesystem is mounted.
+
+This HOWTO demonstrates memory capacity load balancing for a two-node
+cluster, where one node called the "local" node becomes overcommitted
+and the other node called the "remote" node provides additional RAM
+capacity for use by the local node.  Ramster is capable of more complex
+topologies; see the last section titled "ADVANCED RAMSTER TOPOLOGIES".
+
+If you find any terms in this HOWTO unfamiliar or don't understand the
+motivation for ramster, the following LWN reading is recommended:
+-- Transcendent Memory in a Nutshell (lwn.net/Articles/454795)
+-- The future calculus of memory management (lwn.net/Articles/475681)
+And since ramster is built on top of zcache, this article may be helpful:
+-- In-kernel memory compression (lwn.net/Articles/545244)
+
+Now that you've memorized the contents of those articles, let's get started!
+
+A. PRELIMINARY
+
+1) Install two x86_64 Linux systems that are known to work when
+   upgraded to a recent upstream Linux kernel version.
+
+On each system:
+
+2) Configure, build and install, then boot Linux, just to ensure it
+   can be done with an unmodified upstream kernel.  Confirm you booted
+   the upstream kernel with "uname -a".
+
+3) If you plan to do any performance testing or unless you plan to
+   test only swapping, the "WasActive" patch is also highly recommended.
+   (Search lkml.org for WasActive, apply the patch, rebuild your kernel.)
+   For a demo or simple testing, the patch can be ignored.
+
+4) Install ramster-tools as root.  An x86_64 rpm for EL6-based systems
+   can be found at:
+    http://oss.oracle.com/projects/tmem/files/RAMster/ 
+   (Sorry but for now, non-EL6 users must recreate ramster-tools on
+   their own from source.  See above.)
+
+5) Ensure that debugfs is mounted at each boot.  Examples below assume it
+   is mounted at /sys/kernel/debug.
+
+B. BUILDING RAMSTER INTO THE KERNEL
+
+Do the following on each system:
+
+1) Using the kernel configuration mechanism of your choice, change
+   your config to include:
+
+        CONFIG_CLEANCACHE=y
+        CONFIG_FRONTSWAP=y
+        CONFIG_STAGING=y
+        CONFIG_CONFIGFS_FS=y # NOTE: MUST BE y, not m
+        CONFIG_ZCACHE=y
+        CONFIG_RAMSTER=y
+
+   For a linux-3.10 or later kernel, you should also set:
+
+        CONFIG_ZCACHE_DEBUG=y
+        CONFIG_RAMSTER_DEBUG=y
+
+   Before building the kernel please doublecheck your kernel config
+   file to ensure all of the settings are correct.
+
+2) Build this kernel and change your boot file (e.g. /etc/grub.conf)
+   so that the new kernel will boot.
+
+3) Add "zcache" and "ramster" as kernel boot parameters for the new kernel.
+
+4) Reboot each system approximately simultaneously.
+
+5) Check dmesg to ensure there are some messages from ramster, prefixed
+   by "ramster:"
+
+        # dmesg | grep ramster
+
+   You should also see a lot of files in:
+
+        # ls /sys/kernel/debug/zcache
+        # ls /sys/kernel/debug/ramster
+
+   These are mostly counters for various zcache and ramster activities.
+   You should also see files in:
+
+        # ls /sys/kernel/mm/ramster
+
+   These are sysfs files that control ramster as we shall see.
+
+   Ramster now will act as a single-system zcache on each system
+   but doesn't yet know anything about the cluster so can't yet do
+   anything remotely.
+
+C. CONFIGURING THE RAMSTER CLUSTER
+
+This part can be error prone unless you are familiar with clustering
+filesystems.  We need to describe the cluster in a /etc/ramster.conf
+file and the init scripts that parse it are extremely picky about
+the syntax.
+
+1) Create a /etc/ramster.conf file and ensure it is identical on both
+   systems.  This file mimics the ocfs2 format and there is a good amount
+   of documentation that can be searched for ocfs2.conf, but you can use:
+
+        cluster:
+                name = ramster
+                node_count = 2
+        node:
+                name = system1
+                cluster = ramster
+                number = 0
+                ip_address = my.ip.ad.r1
+                ip_port = 7777
+        node:
+                name = system2
+                cluster = ramster
+                number = 1
+                ip_address = my.ip.ad.r2
+                ip_port = 7777
+
+   You must ensure that the "name" field in the file exactly matches
+   the output of "hostname" on each system; if "hostname" shows a
+   fully-qualified hostname, ensure the name is fully qualified in
+   /etc/ramster.conf.  Obviously, substitute my.ip.ad.rx with proper
+   ip addresses.
+
+2) Enable the ramster service and configure it.  If you used the
+   EL6 ramster-tools, this would be:
+
+        # chkconfig --add ramster
+        # service ramster configure
+
+   Set "load on boot" to "y", cluster to start is "ramster" (or whatever
+   name you chose in ramster.conf), heartbeat dead threshold as "500",
+   network idle timeout as "1000000".  Leave the others as default.
+
+3) Reboot both systems.  After reboot, try (assuming EL6 ramster-tools):
+
+        # service ramster status
+
+   You should see "Checking RAMSTER cluster "ramster": Online".  If you do
+   not, something is wrong and ramster will not work.  Note that you
+   should also see that the driver for "configfs" is loaded and mounted,
+   the driver for ocfs2_dlmfs is not loaded, and some numbers for network
+   parameters.  You will also see "Checking RAMSTER heartbeat: Not active".
+   That's all OK.
+
+4) Now you need to start the cluster heartbeat; the cluster is not "up"
+   until all nodes detect a heartbeat.  In a real cluster, heartbeat detection
+   is done via a cluster filesystem, but ramster doesn't require one.  Some
+   hack-y kernel code in ramster can start the heartbeat for you though if
+   you tell it what nodes are "up".  To enable the heartbeat, do:
+
+        # echo 0 > /sys/kernel/mm/ramster/manual_node_up
+        # echo 1 > /sys/kernel/mm/ramster/manual_node_up
+
+   This must be done on BOTH nodes and, to avoid timeouts, must be done
+   approximately concurrently on both nodes.  On an EL6 system, it is
+   convenient to put these lines in /etc/rc.local.  To confirm that the
+   cluster is now up, on both systems do:
+
+        # dmesg | grep ramster
+
+   You should see ramster "Accepted connection" messages in dmesg on both
+   nodes after this.  Note that if you check userland status again with
+
+        # service ramster status
+
+   you will still see "Checking RAMSTER heartbeat: Not active".  That's
+   still OK... the ramster kernel heartbeat hack doesn't communicate to
+   userland.
+
+5) You now must tell each node the node to which it should "remotify" pages.
+   On this two node cluster, we will assume the "local" node, node 0, has
+   memory overcommitted and will use ramster to utilize RAM capacity on
+   the "remote node", node 1.  To configure this, on node 0, you do:
+
+        # echo 1 > /sys/kernel/mm/ramster/remote_target_nodenum
+
+   You should see "ramster: node 1 set as remotification target" in dmesg
+   on node 0.  Again, on EL6, /etc/rc.local is a good place to put this
+   on node 0 so you don't forget to do it at each boot.
+
+6) One more step:  By default, the ramster code does not "remotify" any
+   pages; this is primarily for testing purposes, but sometimes it is
+   useful.  This may change in the future, but for now, on node 0, you do:
+
+        # echo 1 > /sys/kernel/mm/ramster/pers_remotify_enable
+        # echo 1 > /sys/kernel/mm/ramster/eph_remotify_enable
+
+   The first enables remotifying swap (persistent, aka frontswap) pages,
+   the second enables remotifying of page cache (ephemeral, cleancache)
+   pages.
+
+   On EL6, these lines can also be put in /etc/rc.local (AFTER the
+   node_up lines), or at the beginning of a script that runs a workload.
+
+7) Note that most testing has been done with both/all machines booted
+   roughly simultaneously to avoid cluster timeouts.  Ideally, you should
+   do this too unless you are trying to break ramster rather than just
+   use it. ;-)
+
+D. TESTING RAMSTER
+
+1) Note that ramster has no value unless pages get "remotified".  For
+   swap/frontswap/persistent pages, this doesn't happen unless/until
+   the workload would cause swapping to occur, at which point pages
+   are put into frontswap/zcache, and the remotification thread starts
+   working.  To get to the point where the system swaps, you either
+   need a workload for which the working set exceeds the RAM in the
+   system; or you need to somehow reduce the amount of RAM one of
+   the system sees.  This latter is easy when testing in a VM, but
+   harder on physical systems.  In some cases, "mem=xxxM" on the
+   kernel command line restricts memory, but for some values of xxx
+   the kernel may fail to boot.  One may also try creating a fixed
+   RAMdisk, doing nothing with it, but ensuring that it eats up a fixed
+   amount of RAM.
+
+2) To see if ramster is working, on the "remote node", node 1, try:
+
+        # grep . /sys/kernel/debug/ramster/foreign_*
+        # # note, that is space-dot-space between grep and the pathname
+
+   to monitor the number (and max) ephemeral and persistent pages
+   that ramster has sent.  If these stay at zero, ramster is not working
+   either because the workload on the local node (node 0) isn't creating
+   enough memory pressure or because "remotifying" isn't working.  On the
+   local system, node 0, you can watch lots of useful information also.
+   Try:
+
+        grep . /sys/kernel/debug/zcache/*pageframes* \
+                /sys/kernel/debug/zcache/*zbytes* \
+                /sys/kernel/debug/zcache/*zpages* \
+                /sys/kernel/debug/ramster/*remote*
+
+   Of particular note are the remote_*_pages_succ_get counters.  These
+   show how many disk reads and/or disk writes have been avoided on the
+   overcommitted local system by storing pages remotely using ramster.
+
+   At the risk of information overload, you can also grep:
+
+        /sys/kernel/debug/cleancache/* and /sys/kernel/debug/frontswap/*
+
+   These show, for example, how many disk reads and/or disk writes have
+   been avoided by using zcache to optimize RAM on the local system.
+
+
+AUTOMATIC SWAP REPATRIATION
+
+You may notice that while the systems are idle, the foreign persistent
+page count on the remote machine slowly decreases.  This is because
+ramster implements "frontswap selfshrinking":  When possible, swap
+pages that have been remotified are slowly repatriated to the local
+machine.  This is so that local RAM can be used when possible and
+so that, in case of remote machine crash, the probability of loss
+of data is reduced.
+
+REBOOTING / POWEROFF
+
+If a system is shut down while some of its swap pages still reside
+on a remote system, the system may lock up during the shutdown
+sequence.  This will occur if the network is shut down before the
+swap mechansim is shut down, which is the default ordering on many
+distros.  To avoid this annoying problem, simply shut off the swap
+subsystem before starting the shutdown sequence, e.g.:
+
+        # swapoff -a
+        # reboot
+
+Ideally, this swapoff-before-ifdown ordering should be enforced permanently
+using shutdown scripts.
+
+KNOWN PROBLEMS
+
+1) You may periodically see messages such as:
+
+    ramster_r2net, message length problem
+
+   This is harmless but indicates that a node is sending messages
+   containing compressed pages that exceed the maximum for zcache
+   (PAGE_SIZE*15/16).  The sender side needs to be fixed.
+
+2) If you see a "No longer connected to node..." message or a "No connection
+   established with node X after N seconds", it is possible you may
+   be in an unrecoverable state.  If you are certain all of the
+   appropriate cluster configuration steps described above have been
+   performed, try rebooting the two servers concurrently to see if
+   the cluster starts.
+
+   Note that "Connection to node... shutdown, state 7" is an intermediate
+   connection state.  As long as you later see "Accepted connection", the
+   intermediate states are harmless.
+
+3) There are known issues in counting certain values.  As a result
+   you may see periodic warnings from the kernel.  Almost always you
+   will see "ramster: bad accounting for XXX".  There are also "WARN_ONCE"
+   messages.  If you see kernel warnings with a tombstone, please report
+   them.  They are harmless but reflect bugs that need to be eventually fixed.
+
+ADVANCED RAMSTER TOPOLOGIES
+
+The kernel code for ramster can support up to eight nodes in a cluster,
+but no testing has been done with more than three nodes.
+
+In the example described above, the "remote" node serves as a RAM
+overflow for the "local" node.  This can be made symmetric by appropriate
+settings of the sysfs remote_target_nodenum file.  For example, by setting:
+
+        # echo 1 > /sys/kernel/mm/ramster/remote_target_nodenum
+
+on node 0, and
+
+        # echo 0 > /sys/kernel/mm/ramster/remote_target_nodenum
+
+on node 1, each node can serve as a RAM overflow for the other.
+
+For more than two nodes, a "RAM server" can be configured.  For a
+three node system, set:
+
+        # echo 0 > /sys/kernel/mm/ramster/remote_target_nodenum
+
+on node 1, and
+
+        # echo 0 > /sys/kernel/mm/ramster/remote_target_nodenum
+
+on node 2.  Then node 0 is a RAM server for node 1 and node 2.
+
+In this implementation of ramster, any remote node is potentially a single
+point of failure (SPOF).  Though the probability of failure is reduced
+by automatic swap repatriation (see above), a proposed future enhancement
+to ramster improves high-availability for the cluster by sending a copy
+of each page of date to two other nodes.  Patches welcome!
diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c
index 522cb8e55142..dcceed29d31a 100644
--- a/drivers/staging/zcache/zcache-main.c
+++ b/drivers/staging/zcache/zcache-main.c
@@ -1922,15 +1922,15 @@ out:
 
 #ifdef CONFIG_ZCACHE_MODULE
 #ifdef CONFIG_RAMSTER
-module_param(ramster_enabled, int, S_IRUGO);
+module_param(ramster_enabled, bool, S_IRUGO);
 module_param(disable_frontswap_selfshrink, int, S_IRUGO);
 #endif
-module_param(disable_cleancache, int, S_IRUGO);
-module_param(disable_frontswap, int, S_IRUGO);
+module_param(disable_cleancache, bool, S_IRUGO);
+module_param(disable_frontswap, bool, S_IRUGO);
 #ifdef FRONTSWAP_HAS_EXCLUSIVE_GETS
 module_param(frontswap_has_exclusive_gets, bool, S_IRUGO);
 #endif
-module_param(disable_frontswap_ignore_nonactive, int, S_IRUGO);
+module_param(disable_frontswap_ignore_nonactive, bool, S_IRUGO);
 module_param(zcache_comp_name, charp, S_IRUGO);
 module_init(zcache_init);
 MODULE_LICENSE("GPL");
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index ffbc6a94be52..262ef1f23b38 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1250,7 +1250,7 @@ static u32 iscsit_do_crypto_hash_sg(
 
 static void iscsit_do_crypto_hash_buf(
         struct hash_desc *hash,
-        unsigned char *buf,
+        const void *buf,
         u32 payload_length,
         u32 padding,
         u8 *pad_bytes,
@@ -2524,9 +2524,8 @@ static int iscsit_send_conn_drop_async_message(
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)hdr, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 cmd->tx_size += ISCSI_CRC_LEN;
                 pr_debug("Attaching CRC32C HeaderDigest to"
@@ -2662,9 +2661,8 @@ static int iscsit_send_datain(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)cmd->pdu, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->pdu,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 iov[0].iov_len += ISCSI_CRC_LEN;
                 tx_size += ISCSI_CRC_LEN;
@@ -2841,9 +2839,8 @@ iscsit_send_logout(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)&cmd->pdu[0], ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, &cmd->pdu[0],
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 iov[0].iov_len += ISCSI_CRC_LEN;
                 tx_size += ISCSI_CRC_LEN;
@@ -2900,9 +2897,8 @@ static int iscsit_send_unsolicited_nopin(
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)hdr, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 tx_size += ISCSI_CRC_LEN;
                 pr_debug("Attaching CRC32C HeaderDigest to"
@@ -2949,9 +2945,8 @@ iscsit_send_nopin(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)hdr, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 iov[0].iov_len += ISCSI_CRC_LEN;
                 tx_size += ISCSI_CRC_LEN;
@@ -3040,9 +3035,8 @@ static int iscsit_send_r2t(
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)hdr, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 cmd->iov_misc[0].iov_len += ISCSI_CRC_LEN;
                 tx_size += ISCSI_CRC_LEN;
@@ -3256,9 +3250,8 @@ static int iscsit_send_response(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)cmd->pdu, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->pdu,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 iov[0].iov_len += ISCSI_CRC_LEN;
                 tx_size += ISCSI_CRC_LEN;
@@ -3329,9 +3322,8 @@ iscsit_send_task_mgt_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)hdr, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 cmd->iov_misc[0].iov_len += ISCSI_CRC_LEN;
                 tx_size += ISCSI_CRC_LEN;
@@ -3504,9 +3496,8 @@ static int iscsit_send_text_rsp(
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)hdr, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 iov[0].iov_len += ISCSI_CRC_LEN;
                 tx_size += ISCSI_CRC_LEN;
@@ -3557,11 +3548,11 @@ static int iscsit_send_reject(
         struct iscsi_cmd *cmd,
         struct iscsi_conn *conn)
 {
-        u32 iov_count = 0, tx_size = 0;
-        struct iscsi_reject *hdr;
+        struct iscsi_reject *hdr = (struct iscsi_reject *)&cmd->pdu[0];
         struct kvec *iov;
+        u32 iov_count = 0, tx_size;
 
-        iscsit_build_reject(cmd, conn, (struct iscsi_reject *)&cmd->pdu[0]);
+        iscsit_build_reject(cmd, conn, hdr);
 
         iov = &cmd->iov_misc[0];
         iov[iov_count].iov_base = cmd->pdu;
@@ -3574,9 +3565,8 @@ static int iscsit_send_reject(
         if (conn->conn_ops->HeaderDigest) {
                 u32 *header_digest = (u32 *)&cmd->pdu[ISCSI_HDR_LEN];
 
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)hdr, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)header_digest);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, hdr,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)header_digest);
 
                 iov[0].iov_len += ISCSI_CRC_LEN;
                 tx_size += ISCSI_CRC_LEN;
@@ -3585,9 +3575,8 @@ static int iscsit_send_reject(
         }
 
         if (conn->conn_ops->DataDigest) {
-                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash,
-                                (unsigned char *)cmd->buf_ptr, ISCSI_HDR_LEN,
-                                0, NULL, (u8 *)&cmd->data_crc);
+                iscsit_do_crypto_hash_buf(&conn->conn_tx_hash, cmd->buf_ptr,
+                                ISCSI_HDR_LEN, 0, NULL, (u8 *)&cmd->data_crc);
 
                 iov[iov_count].iov_base = &cmd->data_crc;
                 iov[iov_count++].iov_len  = ISCSI_CRC_LEN;
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index 7816af6cdd12..40d9dbca987b 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -823,7 +823,7 @@ static int iscsit_attach_ooo_cmdsn(
                 /*
                  * CmdSN is greater than the tail of the list.
                  */
-                if (ooo_tail->cmdsn < ooo_cmdsn->cmdsn)
+                if (iscsi_sna_lt(ooo_tail->cmdsn, ooo_cmdsn->cmdsn))
                         list_add_tail(&ooo_cmdsn->ooo_list,
                                         &sess->sess_ooo_cmdsn_list);
                 else {
@@ -833,11 +833,12 @@ static int iscsit_attach_ooo_cmdsn(
                          */
                         list_for_each_entry(ooo_tmp, &sess->sess_ooo_cmdsn_list,
                                                 ooo_list) {
-                                if (ooo_tmp->cmdsn < ooo_cmdsn->cmdsn)
+                                if (iscsi_sna_lt(ooo_tmp->cmdsn, ooo_cmdsn->cmdsn))
                                         continue;
 
+                                /* Insert before this entry */
                                 list_add(&ooo_cmdsn->ooo_list,
-                                        &ooo_tmp->ooo_list);
+                                        ooo_tmp->ooo_list.prev);
                                 break;
                         }
                 }
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index f690be9e5293..c2185fc31136 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -436,7 +436,7 @@ int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr)
         /*
          * Extra parameters for ISER from RFC-5046
          */
-        param = iscsi_set_default_param(pl, RDMAEXTENTIONS, INITIAL_RDMAEXTENTIONS,
+        param = iscsi_set_default_param(pl, RDMAEXTENSIONS, INITIAL_RDMAEXTENSIONS,
                         PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
                         TYPERANGE_BOOL_AND, USE_LEADING_ONLY);
         if (!param)
@@ -529,7 +529,7 @@ int iscsi_set_keys_to_negotiate(
                         SET_PSTATE_NEGOTIATE(param);
                 } else if (!strcmp(param->name, OFMARKINT)) {
                         SET_PSTATE_NEGOTIATE(param);
-                } else if (!strcmp(param->name, RDMAEXTENTIONS)) {
+                } else if (!strcmp(param->name, RDMAEXTENSIONS)) {
                         if (iser == true)
                                 SET_PSTATE_NEGOTIATE(param);
                 } else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
@@ -580,7 +580,7 @@ int iscsi_set_keys_irrelevant_for_discovery(
                         param->state &= ~PSTATE_NEGOTIATE;
                 else if (!strcmp(param->name, OFMARKINT))
                         param->state &= ~PSTATE_NEGOTIATE;
-                else if (!strcmp(param->name, RDMAEXTENTIONS))
+                else if (!strcmp(param->name, RDMAEXTENSIONS))
                         param->state &= ~PSTATE_NEGOTIATE;
                 else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH))
                         param->state &= ~PSTATE_NEGOTIATE;
@@ -1977,7 +1977,7 @@ void iscsi_set_session_parameters(
                         ops->SessionType = !strcmp(param->value, DISCOVERY);
                         pr_debug("SessionType:                  %s\n",
                                 param->value);
-                } else if (!strcmp(param->name, RDMAEXTENTIONS)) {
+                } else if (!strcmp(param->name, RDMAEXTENSIONS)) {
                         ops->RDMAExtensions = !strcmp(param->value, YES);
                         pr_debug("RDMAExtensions:               %s\n",
                                 param->value);
diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h
index f31b9c4b83f2..915b06798505 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.h
+++ b/drivers/target/iscsi/iscsi_target_parameters.h
@@ -91,7 +91,7 @@ extern void iscsi_set_session_parameters(struct iscsi_sess_ops *,
 /*
  * Parameter names of iSCSI Extentions for RDMA (iSER).  See RFC-5046
  */
-#define RDMAEXTENTIONS                  "RDMAExtensions"
+#define RDMAEXTENSIONS                  "RDMAExtensions"
 #define INITIATORRECVDATASEGMENTLENGTH  "InitiatorRecvDataSegmentLength"
 #define TARGETRECVDATASEGMENTLENGTH     "TargetRecvDataSegmentLength"
 
@@ -142,7 +142,7 @@ extern void iscsi_set_session_parameters(struct iscsi_sess_ops *,
 /*
  * Initial values for iSER parameters following RFC-5046 Section 6
  */
-#define INITIAL_RDMAEXTENTIONS                  NO
+#define INITIAL_RDMAEXTENSIONS                  NO
 #define INITIAL_INITIATORRECVDATASEGMENTLENGTH  "262144"
 #define INITIAL_TARGETRECVDATASEGMENTLENGTH     "8192"
 
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 43b7ac6c5b1c..4a8bd36d3958 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -1584,6 +1584,13 @@ static struct target_core_configfs_attribute target_core_attr_dev_udev_path = {
         .store  = target_core_store_dev_udev_path,
 };
 
+static ssize_t target_core_show_dev_enable(void *p, char *page)
+{
+        struct se_device *dev = p;
+
+        return snprintf(page, PAGE_SIZE, "%d\n", !!(dev->dev_flags & DF_CONFIGURED));
+}
+
 static ssize_t target_core_store_dev_enable(
         void *p,
         const char *page,
@@ -1609,8 +1616,8 @@ static ssize_t target_core_store_dev_enable(
 static struct target_core_configfs_attribute target_core_attr_dev_enable = {
         .attr   = { .ca_owner = THIS_MODULE,
                     .ca_name = "enable",
-                    .ca_mode = S_IWUSR },
-        .show   = NULL,
+                    .ca_mode =  S_IRUGO | S_IWUSR },
+        .show   = target_core_show_dev_enable,
         .store  = target_core_store_dev_enable,
 };
 
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 2e4d655471bc..4630481b6043 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -68,7 +68,6 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
                 struct se_dev_entry *deve = se_cmd->se_deve;
 
                 deve->total_cmds++;
-                deve->total_bytes += se_cmd->data_length;
 
                 if ((se_cmd->data_direction == DMA_TO_DEVICE) &&
                     (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)) {
@@ -85,8 +84,6 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
                 else if (se_cmd->data_direction == DMA_FROM_DEVICE)
                         deve->read_bytes += se_cmd->data_length;
 
-                deve->deve_cmds++;
-
                 se_lun = deve->se_lun;
                 se_cmd->se_lun = deve->se_lun;
                 se_cmd->pr_res_key = deve->pr_res_key;
@@ -275,17 +272,6 @@ int core_free_device_list_for_node(
         return 0;
 }
 
-void core_dec_lacl_count(struct se_node_acl *se_nacl, struct se_cmd *se_cmd)
-{
-        struct se_dev_entry *deve;
-        unsigned long flags;
-
-        spin_lock_irqsave(&se_nacl->device_list_lock, flags);
-        deve = se_nacl->device_list[se_cmd->orig_fe_lun];
-        deve->deve_cmds--;
-        spin_unlock_irqrestore(&se_nacl->device_list_lock, flags);
-}
-
 void core_update_device_list_access(
         u32 mapped_lun,
         u32 lun_access,
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 58ed683e04ae..1b1d544e927a 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -153,10 +153,6 @@ static int fd_configure_device(struct se_device *dev)
                 struct request_queue *q = bdev_get_queue(inode->i_bdev);
                 unsigned long long dev_size;
 
-                dev->dev_attrib.hw_block_size =
-                        bdev_logical_block_size(inode->i_bdev);
-                dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q);
-
                 /*
                  * Determine the number of bytes from i_size_read() minus
                  * one (1) logical sector from underlying struct block_device
@@ -203,9 +199,6 @@ static int fd_configure_device(struct se_device *dev)
                         goto fail;
                 }
 
-                dev->dev_attrib.hw_block_size = FD_BLOCKSIZE;
-                dev->dev_attrib.hw_max_sectors = FD_MAX_SECTORS;
-
                 /*
                  * Limit UNMAP emulation to 8k Number of LBAs (NoLB)
                  */
@@ -226,6 +219,8 @@ static int fd_configure_device(struct se_device *dev)
 
         fd_dev->fd_block_size = dev->dev_attrib.hw_block_size;
 
+        dev->dev_attrib.hw_block_size = FD_BLOCKSIZE;
+        dev->dev_attrib.hw_max_sectors = FD_MAX_SECTORS;
         dev->dev_attrib.hw_queue_depth = FD_MAX_DEVICE_QUEUE_DEPTH;
 
         if (fd_dev->fbd_flags & FDBD_HAS_BUFFERED_IO_WCE) {
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 07f5f94634bb..aa1620abec6d 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -615,6 +615,8 @@ iblock_execute_rw(struct se_cmd *cmd)
                                 rw = WRITE_FUA;
                         else if (!(q->flush_flags & REQ_FLUSH))
                                 rw = WRITE_FUA;
+                        else
+                                rw = WRITE;
                 } else {
                         rw = WRITE;
                 }
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index 853bab60e362..18d49df4d0ac 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -8,7 +8,6 @@ extern struct t10_alua_lu_gp *default_lu_gp;
 struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
 int     core_free_device_list_for_node(struct se_node_acl *,
                 struct se_portal_group *);
-void    core_dec_lacl_count(struct se_node_acl *, struct se_cmd *);
 void    core_update_device_list_access(u32, u32, struct se_node_acl *);
 int     core_enable_device_list_for_node(struct se_lun *, struct se_lun_acl *,
                 u32, u32, struct se_node_acl *, struct se_portal_group *);
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index e0b3c379aa14..0921a64b5550 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -291,6 +291,11 @@ rd_execute_rw(struct se_cmd *cmd)
         u32 src_len;
         u64 tmp;
 
+        if (dev->rd_flags & RDF_NULLIO) {
+                target_complete_cmd(cmd, SAM_STAT_GOOD);
+                return 0;
+        }
+
         tmp = cmd->t_task_lba * se_dev->dev_attrib.block_size;
         rd_offset = do_div(tmp, PAGE_SIZE);
         rd_page = tmp;
@@ -373,11 +378,12 @@ rd_execute_rw(struct se_cmd *cmd)
 }
 
 enum {
-        Opt_rd_pages, Opt_err
+        Opt_rd_pages, Opt_rd_nullio, Opt_err
 };
 
 static match_table_t tokens = {
         {Opt_rd_pages, "rd_pages=%d"},
+        {Opt_rd_nullio, "rd_nullio=%d"},
         {Opt_err, NULL}
 };
 
@@ -408,6 +414,14 @@ static ssize_t rd_set_configfs_dev_params(struct se_device *dev,
                                 " Count: %u\n", rd_dev->rd_page_count);
                         rd_dev->rd_flags |= RDF_HAS_PAGE_COUNT;
                         break;
+                case Opt_rd_nullio:
+                        match_int(args, &arg);
+                        if (arg != 1)
+                                break;
+
+                        pr_debug("RAMDISK: Setting NULLIO flag: %d\n", arg);
+                        rd_dev->rd_flags |= RDF_NULLIO;
+                        break;
                 default:
                         break;
                 }
@@ -424,8 +438,9 @@ static ssize_t rd_show_configfs_dev_params(struct se_device *dev, char *b)
         ssize_t bl = sprintf(b, "TCM RamDisk ID: %u  RamDisk Makeup: rd_mcp\n",
                         rd_dev->rd_dev_id);
         bl += sprintf(b + bl, "        PAGES/PAGE_SIZE: %u*%lu"
-                        "  SG_table_count: %u\n", rd_dev->rd_page_count,
-                        PAGE_SIZE, rd_dev->sg_table_count);
+                        "  SG_table_count: %u  nullio: %d\n", rd_dev->rd_page_count,
+                        PAGE_SIZE, rd_dev->sg_table_count,
+                        !!(rd_dev->rd_flags & RDF_NULLIO));
         return bl;
 }
 
diff --git a/drivers/target/target_core_rd.h b/drivers/target/target_core_rd.h
index 933b38b6e563..1789d1e14395 100644
--- a/drivers/target/target_core_rd.h
+++ b/drivers/target/target_core_rd.h
@@ -22,6 +22,7 @@ struct rd_dev_sg_table {
 } ____cacheline_aligned;
 
 #define RDF_HAS_PAGE_COUNT      0x01
+#define RDF_NULLIO              0x02
 
 struct rd_dev {
         struct se_device dev;
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index f8388b4024aa..4a793362309d 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2163,8 +2163,6 @@ void transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks)
                 if (wait_for_tasks)
                         transport_wait_for_tasks(cmd);
 
-                core_dec_lacl_count(cmd->se_sess->se_node_acl, cmd);
-
                 if (cmd->se_lun)
                         transport_lun_remove_cmd(cmd);
 
@@ -2213,21 +2211,19 @@ static void target_release_cmd_kref(struct kref *kref)
 {
         struct se_cmd *se_cmd = container_of(kref, struct se_cmd, cmd_kref);
         struct se_session *se_sess = se_cmd->se_sess;
-        unsigned long flags;
 
-        spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
         if (list_empty(&se_cmd->se_cmd_list)) {
-                spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+                spin_unlock(&se_sess->sess_cmd_lock);
                 se_cmd->se_tfo->release_cmd(se_cmd);
                 return;
         }
         if (se_sess->sess_tearing_down && se_cmd->cmd_wait_set) {
-                spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+                spin_unlock(&se_sess->sess_cmd_lock);
                 complete(&se_cmd->cmd_wait_comp);
                 return;
         }
         list_del(&se_cmd->se_cmd_list);
-        spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+        spin_unlock(&se_sess->sess_cmd_lock);
 
         se_cmd->se_tfo->release_cmd(se_cmd);
 }
@@ -2238,7 +2234,8 @@ static void target_release_cmd_kref(struct kref *kref)
  */
 int target_put_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd)
 {
-        return kref_put(&se_cmd->cmd_kref, target_release_cmd_kref);
+        return kref_put_spinlock_irqsave(&se_cmd->cmd_kref, target_release_cmd_kref,
+                        &se_sess->sess_cmd_lock);
 }
 EXPORT_SYMBOL(target_put_sess_cmd);
 
diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index 5b4d75fd7b49..54ffd64ca3f7 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -169,21 +169,11 @@ static int armada_thermal_probe(struct platform_device *pdev)
                 return -ENOMEM;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "Failed to get platform resource\n");
-                return -ENODEV;
-        }
-
         priv->sensor = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(priv->sensor))
                 return PTR_ERR(priv->sensor);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-        if (!res) {
-                dev_err(&pdev->dev, "Failed to get platform resource\n");
-                return -ENODEV;
-        }
-
         priv->control = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(priv->control))
                 return PTR_ERR(priv->control);
diff --git a/drivers/thermal/dove_thermal.c b/drivers/thermal/dove_thermal.c
index 4b15a5f270dc..a088d1365ca5 100644
--- a/drivers/thermal/dove_thermal.c
+++ b/drivers/thermal/dove_thermal.c
@@ -149,10 +149,6 @@ static int dove_thermal_probe(struct platform_device *pdev)
                 return PTR_ERR(priv->sensor);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-        if (!res) {
-                dev_err(&pdev->dev, "Failed to get platform resource\n");
-                return -ENODEV;
-        }
         priv->control = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(priv->control))
                 return PTR_ERR(priv->control);
diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c
index d20ce9e61403..788b1ddcac6c 100644
--- a/drivers/thermal/exynos_thermal.c
+++ b/drivers/thermal/exynos_thermal.c
@@ -925,11 +925,6 @@ static int exynos_tmu_probe(struct platform_device *pdev)
         INIT_WORK(&data->irq_work, exynos_tmu_work);
 
         data->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!data->mem) {
-                dev_err(&pdev->dev, "Failed to get platform resource\n");
-                return -ENOENT;
-        }
-
         data->base = devm_ioremap_resource(&pdev->dev, data->mem);
         if (IS_ERR(data->base))
                 return PTR_ERR(data->base);
diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index 6d0c27cd03da..9bffcec5ad82 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -859,6 +859,7 @@ error:
  */
 static void __exit ehv_bc_exit(void)
 {
+        platform_driver_unregister(&ehv_bc_tty_driver);
         tty_unregister_driver(ehv_bc_driver);
         put_tty_driver(ehv_bc_driver);
         kfree(bcs);
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 71d6eb2c93b1..4c4a23674569 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -1618,8 +1618,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
                                 if (ip->type == PORT_16550A)
                                         me->fifo[p] = 1;
 
-                                opmode = inb(ip->opmode_ioaddr)>>((p % 4) * 2);
-                                opmode &= OP_MODE_MASK;
+                                if (ip->board->chip_flag == MOXA_MUST_MU860_HWID) {
+                                        opmode = inb(ip->opmode_ioaddr)>>((p % 4) * 2);
+                                        opmode &= OP_MODE_MASK;
+                                } else {
+                                        opmode = RS232_MODE;
+                                }
                                 me->iftype[p] = opmode;
                                 mutex_unlock(&port->mutex);
                         }
@@ -1676,6 +1680,9 @@ static int mxser_ioctl(struct tty_struct *tty,
                 int shiftbit;
                 unsigned char val, mask;
 
+                if (info->board->chip_flag != MOXA_MUST_MU860_HWID)
+                        return -EFAULT;
+
                 p = tty->index % 4;
                 if (cmd == MOXA_SET_OP_MODE) {
                         if (get_user(opmode, (int __user *) argp))
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index d655416087b7..6c7fe90ad72d 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1573,6 +1573,14 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
                         ldata->real_raw = 0;
         }
         n_tty_set_room(tty);
+        /*
+         * Fix tty hang when I_IXON(tty) is cleared, but the tty
+         * been stopped by STOP_CHAR(tty) before it.
+         */
+        if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped) {
+                start_tty(tty);
+        }
+
         /* The termios change make the tty ready for I/O */
         wake_up_interruptible(&tty->write_wait);
         wake_up_interruptible(&tty->read_wait);
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
index 82d35c5a58fd..354564ea47c5 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -150,12 +150,14 @@ static Word_t aiop_intr_bits[AIOP_CTL_SIZE] = {
         AIOP_INTR_BIT_3
 };
 
+#ifdef CONFIG_PCI
 static Word_t upci_aiop_intr_bits[AIOP_CTL_SIZE] = {
         UPCI_AIOP_INTR_BIT_0,
         UPCI_AIOP_INTR_BIT_1,
         UPCI_AIOP_INTR_BIT_2,
         UPCI_AIOP_INTR_BIT_3
 };
+#endif
 
 static Byte_t RData[RDATASIZE] = {
         0x00, 0x09, 0xf6, 0x82,
@@ -227,7 +229,6 @@ static unsigned long nextLineNumber;
 static int __init init_ISA(int i);
 static void rp_wait_until_sent(struct tty_struct *tty, int timeout);
 static void rp_flush_buffer(struct tty_struct *tty);
-static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model);
 static unsigned char GetLineNumber(int ctrl, int aiop, int ch);
 static unsigned char SetLineNumber(int ctrl, int aiop, int ch);
 static void rp_start(struct tty_struct *tty);
@@ -241,11 +242,6 @@ static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags);
 static void sModemReset(CONTROLLER_T * CtlP, int chan, int on);
 static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on);
 static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data);
-static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
-                              ByteIO_t * AiopIOList, int AiopIOListSize,
-                              WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
-                              int PeriodicOnly, int altChanRingIndicator,
-                              int UPCIRingInd);
 static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
                            ByteIO_t * AiopIOList, int AiopIOListSize,
                            int IRQNum, Byte_t Frequency, int PeriodicOnly);
@@ -1775,6 +1771,145 @@ static DEFINE_PCI_DEVICE_TABLE(rocket_pci_ids) = {
 };
 MODULE_DEVICE_TABLE(pci, rocket_pci_ids);
 
+/*  Resets the speaker controller on RocketModem II and III devices */
+static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model)
+{
+        ByteIO_t addr;
+
+        /* RocketModem II speaker control is at the 8th port location of offset 0x40 */
+        if ((model == MODEL_RP4M) || (model == MODEL_RP6M)) {
+                addr = CtlP->AiopIO[0] + 0x4F;
+                sOutB(addr, 0);
+        }
+
+        /* RocketModem III speaker control is at the 1st port location of offset 0x80 */
+        if ((model == MODEL_UPCI_RM3_8PORT)
+            || (model == MODEL_UPCI_RM3_4PORT)) {
+                addr = CtlP->AiopIO[0] + 0x88;
+                sOutB(addr, 0);
+        }
+}
+
+/***************************************************************************
+Function: sPCIInitController
+Purpose:  Initialization of controller global registers and controller
+          structure.
+Call:     sPCIInitController(CtlP,CtlNum,AiopIOList,AiopIOListSize,
+                          IRQNum,Frequency,PeriodicOnly)
+          CONTROLLER_T *CtlP; Ptr to controller structure
+          int CtlNum; Controller number
+          ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
+             This list must be in the order the AIOPs will be found on the
+             controller.  Once an AIOP in the list is not found, it is
+             assumed that there are no more AIOPs on the controller.
+          int AiopIOListSize; Number of addresses in AiopIOList
+          int IRQNum; Interrupt Request number.  Can be any of the following:
+                         0: Disable global interrupts
+                         3: IRQ 3
+                         4: IRQ 4
+                         5: IRQ 5
+                         9: IRQ 9
+                         10: IRQ 10
+                         11: IRQ 11
+                         12: IRQ 12
+                         15: IRQ 15
+          Byte_t Frequency: A flag identifying the frequency
+                   of the periodic interrupt, can be any one of the following:
+                      FREQ_DIS - periodic interrupt disabled
+                      FREQ_137HZ - 137 Hertz
+                      FREQ_69HZ - 69 Hertz
+                      FREQ_34HZ - 34 Hertz
+                      FREQ_17HZ - 17 Hertz
+                      FREQ_9HZ - 9 Hertz
+                      FREQ_4HZ - 4 Hertz
+                   If IRQNum is set to 0 the Frequency parameter is
+                   overidden, it is forced to a value of FREQ_DIS.
+          int PeriodicOnly: 1 if all interrupts except the periodic
+                               interrupt are to be blocked.
+                            0 is both the periodic interrupt and
+                               other channel interrupts are allowed.
+                            If IRQNum is set to 0 the PeriodicOnly parameter is
+                               overidden, it is forced to a value of 0.
+Return:   int: Number of AIOPs on the controller, or CTLID_NULL if controller
+               initialization failed.
+
+Comments:
+          If periodic interrupts are to be disabled but AIOP interrupts
+          are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
+
+          If interrupts are to be completely disabled set IRQNum to 0.
+
+          Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
+          invalid combination.
+
+          This function performs initialization of global interrupt modes,
+          but it does not actually enable global interrupts.  To enable
+          and disable global interrupts use functions sEnGlobalInt() and
+          sDisGlobalInt().  Enabling of global interrupts is normally not
+          done until all other initializations are complete.
+
+          Even if interrupts are globally enabled, they must also be
+          individually enabled for each channel that is to generate
+          interrupts.
+
+Warnings: No range checking on any of the parameters is done.
+
+          No context switches are allowed while executing this function.
+
+          After this function all AIOPs on the controller are disabled,
+          they can be enabled with sEnAiop().
+*/
+static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
+                              ByteIO_t * AiopIOList, int AiopIOListSize,
+                              WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
+                              int PeriodicOnly, int altChanRingIndicator,
+                              int UPCIRingInd)
+{
+        int i;
+        ByteIO_t io;
+
+        CtlP->AltChanRingIndicator = altChanRingIndicator;
+        CtlP->UPCIRingInd = UPCIRingInd;
+        CtlP->CtlNum = CtlNum;
+        CtlP->CtlID = CTLID_0001;       /* controller release 1 */
+        CtlP->BusType = isPCI;  /* controller release 1 */
+
+        if (ConfigIO) {
+                CtlP->isUPCI = 1;
+                CtlP->PCIIO = ConfigIO + _PCI_9030_INT_CTRL;
+                CtlP->PCIIO2 = ConfigIO + _PCI_9030_GPIO_CTRL;
+                CtlP->AiopIntrBits = upci_aiop_intr_bits;
+        } else {
+                CtlP->isUPCI = 0;
+                CtlP->PCIIO =
+                    (WordIO_t) ((ByteIO_t) AiopIOList[0] + _PCI_INT_FUNC);
+                CtlP->AiopIntrBits = aiop_intr_bits;
+        }
+
+        sPCIControllerEOI(CtlP);        /* clear EOI if warm init */
+        /* Init AIOPs */
+        CtlP->NumAiop = 0;
+        for (i = 0; i < AiopIOListSize; i++) {
+                io = AiopIOList[i];
+                CtlP->AiopIO[i] = (WordIO_t) io;
+                CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
+
+                CtlP->AiopID[i] = sReadAiopID(io);      /* read AIOP ID */
+                if (CtlP->AiopID[i] == AIOPID_NULL)     /* if AIOP does not exist */
+                        break;  /* done looking for AIOPs */
+
+                CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io); /* num channels in AIOP */
+                sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE);    /* clock prescaler */
+                sOutB(io + _INDX_DATA, sClockPrescale);
+                CtlP->NumAiop++;        /* bump count of AIOPs */
+        }
+
+        if (CtlP->NumAiop == 0)
+                return (-1);
+        else
+                return (CtlP->NumAiop);
+}
+
 /*
  *  Called when a PCI card is found.  Retrieves and stores model information,
  *  init's aiopic and serial port hardware.
@@ -2519,147 +2654,6 @@ static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
                 return (CtlP->NumAiop);
 }
 
-#ifdef CONFIG_PCI
-/***************************************************************************
-Function: sPCIInitController
-Purpose:  Initialization of controller global registers and controller
-          structure.
-Call:     sPCIInitController(CtlP,CtlNum,AiopIOList,AiopIOListSize,
-                          IRQNum,Frequency,PeriodicOnly)
-          CONTROLLER_T *CtlP; Ptr to controller structure
-          int CtlNum; Controller number
-          ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
-             This list must be in the order the AIOPs will be found on the
-             controller.  Once an AIOP in the list is not found, it is
-             assumed that there are no more AIOPs on the controller.
-          int AiopIOListSize; Number of addresses in AiopIOList
-          int IRQNum; Interrupt Request number.  Can be any of the following:
-                         0: Disable global interrupts
-                         3: IRQ 3
-                         4: IRQ 4
-                         5: IRQ 5
-                         9: IRQ 9
-                         10: IRQ 10
-                         11: IRQ 11
-                         12: IRQ 12
-                         15: IRQ 15
-          Byte_t Frequency: A flag identifying the frequency
-                   of the periodic interrupt, can be any one of the following:
-                      FREQ_DIS - periodic interrupt disabled
-                      FREQ_137HZ - 137 Hertz
-                      FREQ_69HZ - 69 Hertz
-                      FREQ_34HZ - 34 Hertz
-                      FREQ_17HZ - 17 Hertz
-                      FREQ_9HZ - 9 Hertz
-                      FREQ_4HZ - 4 Hertz
-                   If IRQNum is set to 0 the Frequency parameter is
-                   overidden, it is forced to a value of FREQ_DIS.
-          int PeriodicOnly: 1 if all interrupts except the periodic
-                               interrupt are to be blocked.
-                            0 is both the periodic interrupt and
-                               other channel interrupts are allowed.
-                            If IRQNum is set to 0 the PeriodicOnly parameter is
-                               overidden, it is forced to a value of 0.
-Return:   int: Number of AIOPs on the controller, or CTLID_NULL if controller
-               initialization failed.
-
-Comments:
-          If periodic interrupts are to be disabled but AIOP interrupts
-          are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
-
-          If interrupts are to be completely disabled set IRQNum to 0.
-
-          Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
-          invalid combination.
-
-          This function performs initialization of global interrupt modes,
-          but it does not actually enable global interrupts.  To enable
-          and disable global interrupts use functions sEnGlobalInt() and
-          sDisGlobalInt().  Enabling of global interrupts is normally not
-          done until all other initializations are complete.
-
-          Even if interrupts are globally enabled, they must also be
-          individually enabled for each channel that is to generate
-          interrupts.
-
-Warnings: No range checking on any of the parameters is done.
-
-          No context switches are allowed while executing this function.
-
-          After this function all AIOPs on the controller are disabled,
-          they can be enabled with sEnAiop().
-*/
-static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
-                              ByteIO_t * AiopIOList, int AiopIOListSize,
-                              WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
-                              int PeriodicOnly, int altChanRingIndicator,
-                              int UPCIRingInd)
-{
-        int i;
-        ByteIO_t io;
-
-        CtlP->AltChanRingIndicator = altChanRingIndicator;
-        CtlP->UPCIRingInd = UPCIRingInd;
-        CtlP->CtlNum = CtlNum;
-        CtlP->CtlID = CTLID_0001;       /* controller release 1 */
-        CtlP->BusType = isPCI;  /* controller release 1 */
-
-        if (ConfigIO) {
-                CtlP->isUPCI = 1;
-                CtlP->PCIIO = ConfigIO + _PCI_9030_INT_CTRL;
-                CtlP->PCIIO2 = ConfigIO + _PCI_9030_GPIO_CTRL;
-                CtlP->AiopIntrBits = upci_aiop_intr_bits;
-        } else {
-                CtlP->isUPCI = 0;
-                CtlP->PCIIO =
-                    (WordIO_t) ((ByteIO_t) AiopIOList[0] + _PCI_INT_FUNC);
-                CtlP->AiopIntrBits = aiop_intr_bits;
-        }
-
-        sPCIControllerEOI(CtlP);        /* clear EOI if warm init */
-        /* Init AIOPs */
-        CtlP->NumAiop = 0;
-        for (i = 0; i < AiopIOListSize; i++) {
-                io = AiopIOList[i];
-                CtlP->AiopIO[i] = (WordIO_t) io;
-                CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
-
-                CtlP->AiopID[i] = sReadAiopID(io);      /* read AIOP ID */
-                if (CtlP->AiopID[i] == AIOPID_NULL)     /* if AIOP does not exist */
-                        break;  /* done looking for AIOPs */
-
-                CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io); /* num channels in AIOP */
-                sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE);    /* clock prescaler */
-                sOutB(io + _INDX_DATA, sClockPrescale);
-                CtlP->NumAiop++;        /* bump count of AIOPs */
-        }
-
-        if (CtlP->NumAiop == 0)
-                return (-1);
-        else
-                return (CtlP->NumAiop);
-}
-
-/*  Resets the speaker controller on RocketModem II and III devices */
-static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model)
-{
-        ByteIO_t addr;
-
-        /* RocketModem II speaker control is at the 8th port location of offset 0x40 */
-        if ((model == MODEL_RP4M) || (model == MODEL_RP6M)) {
-                addr = CtlP->AiopIO[0] + 0x4F;
-                sOutB(addr, 0);
-        }
-
-        /* RocketModem III speaker control is at the 1st port location of offset 0x80 */
-        if ((model == MODEL_UPCI_RM3_8PORT)
-            || (model == MODEL_UPCI_RM3_4PORT)) {
-                addr = CtlP->AiopIO[0] + 0x88;
-                sOutB(addr, 0);
-        }
-}
-#endif
-
 /***************************************************************************
 Function: sReadAiopID
 Purpose:  Read the AIOP idenfication number directly from an AIOP.
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index beaa283f5cc6..d07b6af3a937 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -338,7 +338,8 @@ static int dw8250_runtime_suspend(struct device *dev)
 {
         struct dw8250_data *data = dev_get_drvdata(dev);
 
-        clk_disable_unprepare(data->clk);
+        if (!IS_ERR(data->clk))
+                clk_disable_unprepare(data->clk);
 
         return 0;
 }
@@ -347,7 +348,8 @@ static int dw8250_runtime_resume(struct device *dev)
 {
         struct dw8250_data *data = dev_get_drvdata(dev);
 
-        clk_prepare_enable(data->clk);
+        if (!IS_ERR(data->clk))
+                clk_prepare_enable(data->clk);
 
         return 0;
 }
@@ -367,6 +369,7 @@ MODULE_DEVICE_TABLE(of, dw8250_of_match);
 static const struct acpi_device_id dw8250_acpi_match[] = {
         { "INT33C4", 0 },
         { "INT33C5", 0 },
+        { "80860F0A", 0 },
         { },
 };
 MODULE_DEVICE_TABLE(acpi, dw8250_acpi_match);
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 8ab70a620919..e2774f9ecd59 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -332,7 +332,7 @@ static void pl011_dma_probe_initcall(struct device *dev, struct uart_amba_port *
                 dmaengine_slave_config(chan, &rx_conf);
                 uap->dmarx.chan = chan;
 
-                if (plat->dma_rx_poll_enable) {
+                if (plat && plat->dma_rx_poll_enable) {
                         /* Set poll rate if specified. */
                         if (plat->dma_rx_poll_rate) {
                                 uap->dmarx.auto_poll_rate = false;
diff --git a/drivers/tty/serial/mcf.c b/drivers/tty/serial/mcf.c
index e956377a38fe..65be0c00c4bf 100644
--- a/drivers/tty/serial/mcf.c
+++ b/drivers/tty/serial/mcf.c
@@ -707,8 +707,10 @@ static int __init mcf_init(void)
         if (rc)
                 return rc;
         rc = platform_driver_register(&mcf_platform_driver);
-        if (rc)
+        if (rc) {
+                uart_unregister_driver(&mcf_driver);
                 return rc;
+        }
         return 0;
 }
 
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 018bad922554..f51b280f3bf2 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -1497,18 +1497,23 @@ mpc52xx_uart_init(void)
         if (psc_ops && psc_ops->fifoc_init) {
                 ret = psc_ops->fifoc_init();
                 if (ret)
-                        return ret;
+                        goto err_init;
         }
 
         ret = platform_driver_register(&mpc52xx_uart_of_driver);
         if (ret) {
                 printk(KERN_ERR "%s: platform_driver_register failed (%i)\n",
                        __FILE__, ret);
-                uart_unregister_driver(&mpc52xx_uart_driver);
-                return ret;
+                goto err_reg;
         }
 
         return 0;
+err_reg:
+        if (psc_ops && psc_ops->fifoc_uninit)
+                psc_ops->fifoc_uninit();
+err_init:
+        uart_unregister_driver(&mpc52xx_uart_driver);
+        return ret;
 }
 
 static void __exit
diff --git a/drivers/tty/serial/nwpserial.c b/drivers/tty/serial/nwpserial.c
index 77287c54f331..549c70a2a63e 100644
--- a/drivers/tty/serial/nwpserial.c
+++ b/drivers/tty/serial/nwpserial.c
@@ -199,7 +199,7 @@ static void nwpserial_shutdown(struct uart_port *port)
         dcr_write(up->dcr_host, UART_IER, up->ier);
 
         /* free irq */
-        free_irq(up->port.irq, port);
+        free_irq(up->port.irq, up);
 }
 
 static int nwpserial_verify_port(struct uart_port *port,
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 30d4f7a783cd..f0b9f6b52b32 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -202,26 +202,6 @@ static int serial_omap_get_context_loss_count(struct uart_omap_port *up)
         return pdata->get_context_loss_count(up->dev);
 }
 
-static void serial_omap_set_forceidle(struct uart_omap_port *up)
-{
-        struct omap_uart_port_info *pdata = up->dev->platform_data;
-
-        if (!pdata || !pdata->set_forceidle)
-                return;
-
-        pdata->set_forceidle(up->dev);
-}
-
-static void serial_omap_set_noidle(struct uart_omap_port *up)
-{
-        struct omap_uart_port_info *pdata = up->dev->platform_data;
-
-        if (!pdata || !pdata->set_noidle)
-                return;
-
-        pdata->set_noidle(up->dev);
-}
-
 static void serial_omap_enable_wakeup(struct uart_omap_port *up, bool enable)
 {
         struct omap_uart_port_info *pdata = up->dev->platform_data;
@@ -298,8 +278,6 @@ static void serial_omap_stop_tx(struct uart_port *port)
                 serial_out(up, UART_IER, up->ier);
         }
 
-        serial_omap_set_forceidle(up);
-
         pm_runtime_mark_last_busy(up->dev);
         pm_runtime_put_autosuspend(up->dev);
 }
@@ -364,7 +342,6 @@ static void serial_omap_start_tx(struct uart_port *port)
 
         pm_runtime_get_sync(up->dev);
         serial_omap_enable_ier_thri(up);
-        serial_omap_set_noidle(up);
         pm_runtime_mark_last_busy(up->dev);
         pm_runtime_put_autosuspend(up->dev);
 }
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 074b9194144f..89429410a245 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1803,6 +1803,7 @@ static int __init s3c24xx_serial_modinit(void)
 
 static void __exit s3c24xx_serial_modexit(void)
 {
+        platform_driver_unregister(&samsung_serial_driver);
         uart_unregister_driver(&s3c24xx_uart_drv);
 }
 
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index fbd447b390f7..740202d8a5c4 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -779,7 +779,6 @@ int vc_allocate(unsigned int currcons)	/* return 0 on success */
                 con_set_default_unimap(vc);
             vc->vc_screenbuf = kmalloc(vc->vc_screenbuf_size, GFP_KERNEL);
             if (!vc->vc_screenbuf) {
-                tty_port_destroy(&vc->port);
                 kfree(vc);
                 vc_cons[currcons].d = NULL;
                 return -ENOMEM;
@@ -986,26 +985,25 @@ static int vt_resize(struct tty_struct *tty, struct winsize *ws)
         return ret;
 }
 
-void vc_deallocate(unsigned int currcons)
+struct vc_data *vc_deallocate(unsigned int currcons)
 {
+        struct vc_data *vc = NULL;
+
         WARN_CONSOLE_UNLOCKED();
 
         if (vc_cons_allocated(currcons)) {
-                struct vc_data *vc = vc_cons[currcons].d;
-                struct vt_notifier_param param = { .vc = vc };
+                struct vt_notifier_param param;
 
+                param.vc = vc = vc_cons[currcons].d;
                 atomic_notifier_call_chain(&vt_notifier_list, VT_DEALLOCATE, &param);
                 vcs_remove_sysfs(currcons);
                 vc->vc_sw->con_deinit(vc);
                 put_pid(vc->vt_pid);
                 module_put(vc->vc_sw->owner);
                 kfree(vc->vc_screenbuf);
-                if (currcons >= MIN_NR_CONSOLES) {
-                        tty_port_destroy(&vc->port);
-                        kfree(vc);
-                }
                 vc_cons[currcons].d = NULL;
         }
+        return vc;
 }
 
 /*
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 98ff1735eafc..fc2c06c66e89 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -283,6 +283,51 @@ do_unimap_ioctl(int cmd, struct unimapdesc __user *user_ud, int perm, struct vc_
         return 0;
 }
 
+/* deallocate a single console, if possible (leave 0) */
+static int vt_disallocate(unsigned int vc_num)
+{
+        struct vc_data *vc = NULL;
+        int ret = 0;
+
+        if (!vc_num)
+                return 0;
+
+        console_lock();
+        if (VT_BUSY(vc_num))
+                ret = -EBUSY;
+        else
+                vc = vc_deallocate(vc_num);
+        console_unlock();
+
+        if (vc && vc_num >= MIN_NR_CONSOLES) {
+                tty_port_destroy(&vc->port);
+                kfree(vc);
+        }
+
+        return ret;
+}
+
+/* deallocate all unused consoles, but leave 0 */
+static void vt_disallocate_all(void)
+{
+        struct vc_data *vc[MAX_NR_CONSOLES];
+        int i;
+
+        console_lock();
+        for (i = 1; i < MAX_NR_CONSOLES; i++)
+                if (!VT_BUSY(i))
+                        vc[i] = vc_deallocate(i);
+                else
+                        vc[i] = NULL;
+        console_unlock();
+
+        for (i = 1; i < MAX_NR_CONSOLES; i++) {
+                if (vc[i] && i >= MIN_NR_CONSOLES) {
+                        tty_port_destroy(&vc[i]->port);
+                        kfree(vc[i]);
+                }
+        }
+}
 
 
 /*
@@ -769,24 +814,10 @@ int vt_ioctl(struct tty_struct *tty,
                         ret = -ENXIO;
                         break;
                 }
-                if (arg == 0) {
-                    /* deallocate all unused consoles, but leave 0 */
-                        console_lock();
-                        for (i=1; i<MAX_NR_CONSOLES; i++)
-                                if (! VT_BUSY(i))
-                                        vc_deallocate(i);
-                        console_unlock();
-                } else {
-                        /* deallocate a single console, if possible */
-                        arg--;
-                        if (VT_BUSY(arg))
-                                ret = -EBUSY;
-                        else if (arg) {                       /* leave 0 */
-                                console_lock();
-                                vc_deallocate(arg);
-                                console_unlock();
-                        }
-                }
+                if (arg == 0)
+                        vt_disallocate_all();
+                else
+                        ret = vt_disallocate(--arg);
                 break;
 
         case VT_RESIZE:
diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig
index e92eeaf251fe..5295be0342c1 100644
--- a/drivers/uio/Kconfig
+++ b/drivers/uio/Kconfig
@@ -45,6 +45,7 @@ config UIO_PDRV_GENIRQ
 
 config UIO_DMEM_GENIRQ
         tristate "Userspace platform driver with generic irq and dynamic memory"
+        depends on HAS_DMA
         help
           Platform driver for Userspace I/O devices, including generic
           interrupt handling code. Shared interrupts are not supported.
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index b7eb86ad6bf2..8a7eb77233b4 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -686,7 +686,8 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
 {
         int ret, len;
         __le32 *buf;
-        int offb, offd;
+        int offb;
+        unsigned int offd;
         const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
         int buflen =  ((size - 1) / stride + 1 + size * 2) * 4;
 
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 608a2aeb400c..b2df442eb3e5 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -20,7 +20,7 @@ config USB_CHIPIDEA_UDC
 config USB_CHIPIDEA_HOST
         bool "ChipIdea host controller"
         depends on USB=y || USB=USB_CHIPIDEA
-        depends on USB_EHCI_HCD
+        depends on USB_EHCI_HCD=y
         select USB_EHCI_ROOT_HUB_TT
         help
           Say Y here to enable host controller functionality of the
diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
index b8ad556c1496..585099ac60dd 100644
--- a/drivers/usb/chipidea/ci13xxx_imx.c
+++ b/drivers/usb/chipidea/ci13xxx_imx.c
@@ -173,17 +173,10 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
 
         ci13xxx_imx_platdata.phy = data->phy;
 
-        if (!pdev->dev.dma_mask) {
-                pdev->dev.dma_mask = devm_kzalloc(&pdev->dev,
-                                      sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
-                if (!pdev->dev.dma_mask) {
-                        ret = -ENOMEM;
-                        dev_err(&pdev->dev, "Failed to alloc dma_mask!\n");
-                        goto err;
-                }
-                *pdev->dev.dma_mask = DMA_BIT_MASK(32);
-                dma_set_coherent_mask(&pdev->dev, *pdev->dev.dma_mask);
-        }
+        if (!pdev->dev.dma_mask)
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         if (usbmisc_ops && usbmisc_ops->init) {
                 ret = usbmisc_ops->init(&pdev->dev);
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 450107e5f657..49b098bedf9b 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -370,11 +370,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(dev, "missing resource\n");
-                return -ENODEV;
-        }
-
         base = devm_ioremap_resource(dev, res);
         if (IS_ERR(base))
                 return PTR_ERR(base);
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 8772b3659296..db535b0aa172 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -51,7 +51,7 @@ config USB_DYNAMIC_MINORS
 
 config USB_OTG
         bool "OTG support"
-        depends on USB_SUSPEND
+        depends on PM_RUNTIME
         default n
         help
           The most notable feature of USB OTG is support for a
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index ab5638d9c707..a63598895077 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -88,6 +88,9 @@ static const struct usb_device_id usb_quirk_list[] = {
         /* Edirol SD-20 */
         { USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
 
+        /* Alcor Micro Corp. Hub */
+        { USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },
+
         /* appletouch */
         { USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
 
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index ea5ee9c21c35..757aa18027d0 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -19,21 +19,21 @@ choice
 
 config USB_DWC3_HOST
         bool "Host only mode"
-        depends on USB
+        depends on USB=y || USB=USB_DWC3
         help
           Select this when you want to use DWC3 in host mode only,
           thereby the gadget feature will be regressed.
 
 config USB_DWC3_GADGET
         bool "Gadget only mode"
-        depends on USB_GADGET
+        depends on USB_GADGET=y || USB_GADGET=USB_DWC3
         help
           Select this when you want to use DWC3 in gadget mode only,
           thereby the host feature will be regressed.
 
 config USB_DWC3_DUAL_ROLE
         bool "Dual Role mode"
-        depends on (USB && USB_GADGET)
+        depends on ((USB=y || USB=USB_DWC3) && (USB_GADGET=y || USB_GADGET=USB_DWC3))
         help
           This is the default mode of working of DWC3 controller where
           both host and gadget features are enabled.
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index a8afe6e26621..929e7dd6e58b 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -95,8 +95,6 @@ static int dwc3_exynos_remove_child(struct device *dev, void *unused)
         return 0;
 }
 
-static u64 dwc3_exynos_dma_mask = DMA_BIT_MASK(32);
-
 static int dwc3_exynos_probe(struct platform_device *pdev)
 {
         struct dwc3_exynos      *exynos;
@@ -118,7 +116,9 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
          * Once we move to full device tree support this will vanish off.
          */
         if (!dev->dma_mask)
-                dev->dma_mask = &dwc3_exynos_dma_mask;
+                dev->dma_mask = &dev->coherent_dma_mask;
+        if (!dev->coherent_dma_mask)
+                dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
         platform_set_drvdata(pdev, exynos);
 
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 83300d94a893..f41aa0d0c414 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -146,7 +146,6 @@ config USB_LPC32XX
         depends on ARCH_LPC32XX
         depends on USB_PHY
         select USB_ISP1301
-        select USB_OTG_UTILS
         help
            This option selects the USB device controller in the LPC32xx SoC.
 
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index f2a970f75bfa..5a5128a226f7 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -1992,8 +1992,6 @@ err_map_regs:
 err_get_hclk:
         clk_put(pclk);
 
-        platform_set_drvdata(pdev, NULL);
-
         return ret;
 }
 
diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c
index 6e6518264c42..fd24cb4540a4 100644
--- a/drivers/usb/gadget/bcm63xx_udc.c
+++ b/drivers/usb/gadget/bcm63xx_udc.c
@@ -2334,21 +2334,11 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(dev, "error finding USBD resource\n");
-                return -ENXIO;
-        }
-
         udc->usbd_regs = devm_ioremap_resource(dev, res);
         if (IS_ERR(udc->usbd_regs))
                 return PTR_ERR(udc->usbd_regs);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-        if (!res) {
-                dev_err(dev, "error finding IUDMA resource\n");
-                return -ENXIO;
-        }
-
         udc->iudma_regs = devm_ioremap_resource(dev, res);
         if (IS_ERR(udc->iudma_regs))
                 return PTR_ERR(udc->iudma_regs);
@@ -2420,7 +2410,6 @@ static int bcm63xx_udc_remove(struct platform_device *pdev)
         usb_del_gadget_udc(&udc->gadget);
         BUG_ON(udc->driver);
 
-        platform_set_drvdata(pdev, NULL);
         bcm63xx_uninit_udc_hw(udc);
 
         return 0;
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 3d5cfc9c2c78..80e7f75a56c7 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -821,8 +821,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
                 gi->gstrings[i] = NULL;
                 s = usb_gstrings_attach(&gi->cdev, gi->gstrings,
                                 USB_GADGET_FIRST_AVAIL_IDX);
-                if (IS_ERR(s))
+                if (IS_ERR(s)) {
+                        ret = PTR_ERR(s);
                         goto err_comp_cleanup;
+                }
 
                 gi->cdev.desc.iManufacturer = s[USB_GADGET_MANUFACTURER_IDX].id;
                 gi->cdev.desc.iProduct = s[USB_GADGET_PRODUCT_IDX].id;
@@ -847,8 +849,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
                         }
                         cfg->gstrings[i] = NULL;
                         s = usb_gstrings_attach(&gi->cdev, cfg->gstrings, 1);
-                        if (IS_ERR(s))
+                        if (IS_ERR(s)) {
+                                ret = PTR_ERR(s);
                                 goto err_comp_cleanup;
+                        }
                         c->iConfiguration = s[0].id;
                 }
 
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index a792e322f4f1..c588e8e486e5 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -1001,7 +1001,6 @@ static int dummy_udc_remove(struct platform_device *pdev)
         struct dummy    *dum = platform_get_drvdata(pdev);
 
         usb_del_gadget_udc(&dum->gadget);
-        platform_set_drvdata(pdev, NULL);
         device_remove_file(&dum->gadget.dev, &dev_attr_function);
         return 0;
 }
@@ -2661,8 +2660,10 @@ static int __init init(void)
         }
         for (i = 0; i < mod_data.num; i++) {
                 dum[i] = kzalloc(sizeof(struct dummy), GFP_KERNEL);
-                if (!dum[i])
+                if (!dum[i]) {
+                        retval = -ENOMEM;
                         goto err_add_pdata;
+                }
                 retval = platform_device_add_data(the_hcd_pdev[i], &dum[i],
                                 sizeof(void *));
                 if (retval)
diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c
index d893d6929079..abf8a31ae146 100644
--- a/drivers/usb/gadget/f_ecm.c
+++ b/drivers/usb/gadget/f_ecm.c
@@ -816,6 +816,7 @@ ecm_unbind(struct usb_configuration *c, struct usb_function *f)
  * @c: the configuration to support the network link
  * @ethaddr: a buffer in which the ethernet address of the host side
  *      side of the link was recorded
+ * @dev: eth_dev structure
  * Context: single threaded during gadget setup
  *
  * Returns zero on success, else negative errno.
diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c
index 185d6f5e4e4d..7be04b342494 100644
--- a/drivers/usb/gadget/f_subset.c
+++ b/drivers/usb/gadget/f_subset.c
@@ -373,6 +373,7 @@ geth_unbind(struct usb_configuration *c, struct usb_function *f)
  * @c: the configuration to support the network link
  * @ethaddr: a buffer in which the ethernet address of the host side
  *      side of the link was recorded
+ * @dev: eth_dev structure
  * Context: single threaded during gadget setup
  *
  * Returns zero on success, else negative errno.
diff --git a/drivers/usb/gadget/f_uac2.c b/drivers/usb/gadget/f_uac2.c
index c7468b6c07b0..03c1fb686644 100644
--- a/drivers/usb/gadget/f_uac2.c
+++ b/drivers/usb/gadget/f_uac2.c
@@ -456,8 +456,6 @@ static int snd_uac2_remove(struct platform_device *pdev)
 {
         struct snd_card *card = platform_get_drvdata(pdev);
 
-        platform_set_drvdata(pdev, NULL);
-
         if (card)
                 return snd_card_free(card);
 
diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index cec8871b77f9..b8632d40f8bf 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -1461,8 +1461,10 @@ static int __init fusb300_probe(struct platform_device *pdev)
 
         fusb300->ep0_req = fusb300_alloc_request(&fusb300->ep[0]->ep,
                                 GFP_KERNEL);
-        if (fusb300->ep0_req == NULL)
+        if (fusb300->ep0_req == NULL) {
+                ret = -ENOMEM;
                 goto clean_up3;
+        }
 
         init_controller(fusb300);
         ret = usb_add_gadget_udc(&pdev->dev, &fusb300->gadget);
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index b5cebd6b0d7a..9b2d24e4c95f 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -1511,8 +1511,6 @@ static int __exit imx_udc_remove(struct platform_device *pdev)
         if (pdata->exit)
                 pdata->exit(&pdev->dev);
 
-        platform_set_drvdata(pdev, NULL);
-
         return 0;
 }
 
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index 866ef0999247..51cfe72da5bb 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -1660,8 +1660,10 @@ static int __init m66592_probe(struct platform_device *pdev)
         m66592->epaddr2ep[0] = &m66592->ep[0];
 
         m66592->ep0_req = m66592_alloc_request(&m66592->ep[0].ep, GFP_KERNEL);
-        if (m66592->ep0_req == NULL)
+        if (m66592->ep0_req == NULL) {
+                ret = -ENOMEM;
                 goto clean_up3;
+        }
         m66592->ep0_req->complete = nop_completion;
 
         init_controller(m66592);
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index ef47495dec8f..95c531d5aa4f 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -2236,7 +2236,6 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev)
                 dev->transceiver = NULL;
         }
 
-        platform_set_drvdata(pdev, NULL);
         the_controller = NULL;
         return 0;
 }
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 0b742d171843..7ff7d9cf2061 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -1977,8 +1977,10 @@ static int __init r8a66597_probe(struct platform_device *pdev)
 
         r8a66597->ep0_req = r8a66597_alloc_request(&r8a66597->ep[0].ep,
                                                         GFP_KERNEL);
-        if (r8a66597->ep0_req == NULL)
+        if (r8a66597->ep0_req == NULL) {
+                ret = -ENOMEM;
                 goto clean_up3;
+        }
         r8a66597->ep0_req->complete = nop_completion;
 
         ret = usb_add_gadget_udc(&pdev->dev, &r8a66597->gadget);
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index a3cdc32115d5..af22f24046b2 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -437,7 +437,7 @@ static void s3c_hsotg_unmap_dma(struct s3c_hsotg *hsotg,
         if (hs_req->req.length == 0)
                 return;
 
-        usb_gadget_unmap_request(&hsotg->gadget, hs_req, hs_ep->dir_in);
+        usb_gadget_unmap_request(&hsotg->gadget, req, hs_ep->dir_in);
 }
 
 /**
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index d0e75e1b3ccb..09c4f70c93c4 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -1851,6 +1851,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
                 irq = gpio_to_irq(udc_info->vbus_pin);
                 if (irq < 0) {
                         dev_err(dev, "no irq for gpio vbus pin\n");
+                        retval = irq;
                         goto err_gpio_claim;
                 }
 
@@ -1948,8 +1949,6 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
         iounmap(base_addr);
         release_mem_region(rsrc_start, rsrc_len);
 
-        platform_set_drvdata(pdev, NULL);
-
         if (!IS_ERR(udc_clock) && udc_clock != NULL) {
                 clk_disable(udc_clock);
                 clk_put(udc_clock);
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 2cd6262e8b71..0deb9d6cde26 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -284,12 +284,16 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
         ss_opts->bulk_buflen = gzero_options.bulk_buflen;
 
         func_ss = usb_get_function(func_inst_ss);
-        if (IS_ERR(func_ss))
+        if (IS_ERR(func_ss)) {
+                status = PTR_ERR(func_ss);
                 goto err_put_func_inst_ss;
+        }
 
         func_inst_lb = usb_get_function_instance("Loopback");
-        if (IS_ERR(func_inst_lb))
+        if (IS_ERR(func_inst_lb)) {
+                status = PTR_ERR(func_inst_lb);
                 goto err_put_func_ss;
+        }
 
         lb_opts = container_of(func_inst_lb, struct f_lb_opts, func_inst);
         lb_opts->bulk_buflen = gzero_options.bulk_buflen;
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 605e2773aad4..77aeb0de98e1 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -518,7 +518,7 @@ endif # USB_OHCI_HCD
 
 config USB_UHCI_HCD
         tristate "UHCI HCD (most Intel and VIA) support"
-        depends on PCI || SPARC_LEON || ARCH_VT8500
+        depends on PCI || USB_UHCI_SUPPORT_NON_PCI_HC
         ---help---
           The Universal Host Controller Interface is a standard by Intel for
           accessing the USB hardware in the PC (which is also called the USB
@@ -535,26 +535,19 @@ config USB_UHCI_HCD
 
 config USB_UHCI_SUPPORT_NON_PCI_HC
         bool
-        depends on USB_UHCI_HCD
-        default y if (SPARC_LEON || ARCH_VT8500)
+        default y if (SPARC_LEON || USB_UHCI_PLATFORM)
 
 config USB_UHCI_PLATFORM
-        bool "Generic UHCI Platform Driver support"
-        depends on USB_UHCI_SUPPORT_NON_PCI_HC
+        bool
         default y if ARCH_VT8500
-        ---help---
-          Enable support for generic UHCI platform devices that require no
-          additional configuration.
 
 config USB_UHCI_BIG_ENDIAN_MMIO
         bool
-        depends on USB_UHCI_SUPPORT_NON_PCI_HC && SPARC_LEON
-        default y
+        default y if SPARC_LEON
 
 config USB_UHCI_BIG_ENDIAN_DESC
         bool
-        depends on USB_UHCI_SUPPORT_NON_PCI_HC && SPARC_LEON
-        default y
+        default y if SPARC_LEON
 
 config USB_FHCI_HCD
         tristate "Freescale QE USB Host Controller support"
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 66420097c242..02f4611faa62 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -63,8 +63,6 @@ static void atmel_stop_ehci(struct platform_device *pdev)
 
 /*-------------------------------------------------------------------------*/
 
-static u64 at91_ehci_dma_mask = DMA_BIT_MASK(32);
-
 static int ehci_atmel_drv_probe(struct platform_device *pdev)
 {
         struct usb_hcd *hcd;
@@ -93,7 +91,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
          * Once we have dma capability bindings this can go away.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &at91_ehci_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
         if (!hcd) {
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 312fc10da3c7..246e124e6ac5 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1286,23 +1286,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER         ehci_hcd_sead3_driver
 #endif
 
-#if !IS_ENABLED(CONFIG_USB_EHCI_PCI) && \
-        !IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \
-        !IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \
-        !IS_ENABLED(CONFIG_USB_EHCI_MXC) && \
-        !IS_ENABLED(CONFIG_USB_EHCI_HCD_OMAP) && \
-        !IS_ENABLED(CONFIG_USB_EHCI_HCD_ORION) && \
-        !IS_ENABLED(CONFIG_USB_EHCI_HCD_SPEAR) && \
-        !IS_ENABLED(CONFIG_USB_EHCI_S5P) && \
-        !IS_ENABLED(CONFIG_USB_EHCI_HCD_AT91) && \
-        !IS_ENABLED(CONFIG_USB_EHCI_MSM) && \
-        !defined(PLATFORM_DRIVER) && \
-        !defined(PS3_SYSTEM_BUS_DRIVER) && \
-        !defined(OF_PLATFORM_DRIVER) && \
-        !defined(XILINX_OF_PLATFORM_DRIVER)
-#error "missing bus glue for ehci-hcd"
-#endif
-
 static int __init ehci_hcd_init(void)
 {
         int retval = 0;
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index d3582fdfb34c..bafa960ffd92 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -90,8 +90,6 @@ static const struct ehci_driver_overrides ehci_omap_overrides __initdata = {
         .extra_priv_size = sizeof(struct omap_hcd),
 };
 
-static u64 omap_ehci_dma_mask = DMA_BIT_MASK(32);
-
 /**
  * ehci_hcd_omap_probe - initialize TI-based HCDs
  *
@@ -146,8 +144,10 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
          * Since shared usb code relies on it, set it here for now.
          * Once we have dma capability bindings this can go away.
          */
-        if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &omap_ehci_dma_mask;
+        if (!dev->dma_mask)
+                dev->dma_mask = &dev->coherent_dma_mask;
+        if (!dev->coherent_dma_mask)
+                dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
         hcd = usb_create_hcd(&ehci_omap_hc_driver, dev,
                         dev_name(dev));
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 29cc4a3a07a3..1a450aa13ebf 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -137,8 +137,6 @@ ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
         }
 }
 
-static u64 ehci_orion_dma_mask = DMA_BIT_MASK(32);
-
 static int ehci_orion_drv_probe(struct platform_device *pdev)
 {
         struct orion_ehci_data *pd = pdev->dev.platform_data;
@@ -183,7 +181,9 @@ static int ehci_orion_drv_probe(struct platform_device *pdev)
          * now. Once we have dma capability bindings this can go away.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &ehci_orion_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         if (!request_mem_region(res->start, resource_size(res),
                                 ehci_orion_hc_driver.description)) {
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 635775278c7f..379037f51a2f 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -71,8 +71,6 @@ static void s5p_setup_vbus_gpio(struct platform_device *pdev)
                 dev_err(dev, "can't request ehci vbus gpio %d", gpio);
 }
 
-static u64 ehci_s5p_dma_mask = DMA_BIT_MASK(32);
-
 static int s5p_ehci_probe(struct platform_device *pdev)
 {
         struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
@@ -90,7 +88,7 @@ static int s5p_ehci_probe(struct platform_device *pdev)
          * Once we move to full device tree support this will vanish off.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &ehci_s5p_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
         if (!pdev->dev.coherent_dma_mask)
                 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
@@ -107,6 +105,7 @@ static int s5p_ehci_probe(struct platform_device *pdev)
         if (IS_ERR(phy)) {
                 /* Fallback to pdata */
                 if (!pdata) {
+                        usb_put_hcd(hcd);
                         dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
                         return -EPROBE_DEFER;
                 } else {
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 7c0a3566b0fe..f5ac4e202bb6 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -58,8 +58,6 @@ static int ehci_spear_drv_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(ehci_spear_pm_ops, ehci_spear_drv_suspend,
                 ehci_spear_drv_resume);
 
-static u64 spear_ehci_dma_mask = DMA_BIT_MASK(32);
-
 static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
 {
         struct usb_hcd *hcd ;
@@ -84,7 +82,9 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
          * Once we have dma capability bindings this can go away.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &spear_ehci_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         usbh_clk = devm_clk_get(&pdev->dev, NULL);
         if (IS_ERR(usbh_clk)) {
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index e3eddc31ac83..59d111bf44a9 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -637,8 +637,6 @@ static void tegra_ehci_set_phcd(struct usb_phy *x, bool enable)
         writel(val, base + TEGRA_USB_PORTSC1);
 }
 
-static u64 tegra_ehci_dma_mask = DMA_BIT_MASK(32);
-
 static int tegra_ehci_probe(struct platform_device *pdev)
 {
         struct resource *res;
@@ -661,7 +659,9 @@ static int tegra_ehci_probe(struct platform_device *pdev)
          * Once we have dma capability bindings this can go away.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &tegra_ehci_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         setup_vbus_gpio(pdev, pdata);
 
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 125e261f5bfc..2facee53eab1 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1739,7 +1739,7 @@ static int isp1760_hub_status_data(struct usb_hcd *hcd, char *buf)
         int retval = 1;
         unsigned long flags;
 
-        /* if !USB_SUSPEND, root hub timers won't get shut down ... */
+        /* if !PM_RUNTIME, root hub timers won't get shut down ... */
         if (!HC_IS_RUNNING(hcd->state))
                 return 0;
 
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index bbb791bd7617..a13709ee4e5d 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -373,8 +373,10 @@ static int isp1760_plat_probe(struct platform_device *pdev)
         irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         if (!irq_res) {
                 pr_warning("isp1760: IRQ resource not available\n");
-                return -ENODEV;
+                ret = -ENODEV;
+                goto cleanup;
         }
+
         irqflags |= irq_res->flags & IRQF_TRIGGER_MASK;
 
         if (priv) {
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index a0cb44f0e724..2ee1496dbc1d 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -504,8 +504,6 @@ static const struct of_device_id at91_ohci_dt_ids[] = {
 
 MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids);
 
-static u64 at91_ohci_dma_mask = DMA_BIT_MASK(32);
-
 static int ohci_at91_of_init(struct platform_device *pdev)
 {
         struct device_node *np = pdev->dev.of_node;
@@ -522,7 +520,9 @@ static int ohci_at91_of_init(struct platform_device *pdev)
          * Once we have dma capability bindings this can go away.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &at91_ohci_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
         if (!pdata)
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 07592c00af26..b0b542c14e31 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -98,8 +98,6 @@ static const struct hc_driver exynos_ohci_hc_driver = {
         .start_port_reset       = ohci_start_port_reset,
 };
 
-static u64 ohci_exynos_dma_mask = DMA_BIT_MASK(32);
-
 static int exynos_ohci_probe(struct platform_device *pdev)
 {
         struct exynos4_ohci_platdata *pdata = pdev->dev.platform_data;
@@ -117,7 +115,7 @@ static int exynos_ohci_probe(struct platform_device *pdev)
          * Once we move to full device tree support this will vanish off.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &ohci_exynos_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
         if (!pdev->dev.coherent_dma_mask)
                 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 9e6de9586ae4..fc627fd54116 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -233,14 +233,14 @@ static int ohci_urb_enqueue (
                         urb->start_frame = frame;
                 }
         } else if (ed->type == PIPE_ISOCHRONOUS) {
-                u16     next = ohci_frame_no(ohci) + 2;
+                u16     next = ohci_frame_no(ohci) + 1;
                 u16     frame = ed->last_iso + ed->interval;
 
                 /* Behind the scheduling threshold? */
                 if (unlikely(tick_before(frame, next))) {
 
                         /* USB_ISO_ASAP: Round up to the first available slot */
-                        if (urb->transfer_flags & URB_ISO_ASAP)
+                        if (urb->transfer_flags & URB_ISO_ASAP) {
                                 frame += (next - frame + ed->interval - 1) &
                                                 -ed->interval;
 
@@ -248,21 +248,25 @@ static int ohci_urb_enqueue (
                          * Not ASAP: Use the next slot in the stream.  If
                          * the entire URB falls before the threshold, fail.
                          */
-                        else if (tick_before(frame + ed->interval *
+                        } 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;
-                        }
+                                        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 to
-                         * the next ED instead of the next TD.  Therefore
-                         * we have to omit the late TDs entirely.
-                         */
-                        urb_priv->td_cnt = DIV_ROUND_UP(next - frame,
-                                        ed->interval);
+                                /*
+                                 * Some OHCI hardware doesn't handle late TDs
+                                 * correctly.  After retiring them it proceeds
+                                 * to the next ED instead of the next TD.
+                                 * Therefore we have to omit the late TDs
+                                 * entirely.
+                                 */
+                                urb_priv->td_cnt = DIV_ROUND_UP(
+                                                (u16) (next - frame),
+                                                ed->interval);
+                        }
                 }
                 urb->start_frame = frame;
         }
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 86d04ed24b72..281ba57a11e2 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -223,8 +223,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 
         isp1301_i2c_client = isp1301_get_client(isp1301_node);
         if (!isp1301_i2c_client) {
-                ret = -EPROBE_DEFER;
-                goto out;
+                return -EPROBE_DEFER;
         }
 
         pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
@@ -234,7 +233,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
         if (usb_disabled()) {
                 dev_err(&pdev->dev, "USB is disabled\n");
                 ret = -ENODEV;
-                goto out;
+                goto fail_disable;
         }
 
         /* Enable AHB slave USB clock, needed for further USB clock control */
@@ -245,19 +244,19 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
         if (IS_ERR(usb_pll_clk)) {
                 dev_err(&pdev->dev, "failed to acquire USB PLL\n");
                 ret = PTR_ERR(usb_pll_clk);
-                goto out1;
+                goto fail_pll;
         }
 
         ret = clk_enable(usb_pll_clk);
         if (ret < 0) {
                 dev_err(&pdev->dev, "failed to start USB PLL\n");
-                goto out2;
+                goto fail_pllen;
         }
 
         ret = clk_set_rate(usb_pll_clk, 48000);
         if (ret < 0) {
                 dev_err(&pdev->dev, "failed to set USB clock rate\n");
-                goto out3;
+                goto fail_rate;
         }
 
         /* Enable USB device clock */
@@ -265,13 +264,13 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
         if (IS_ERR(usb_dev_clk)) {
                 dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n");
                 ret = PTR_ERR(usb_dev_clk);
-                goto out4;
+                goto fail_dev;
         }
 
         ret = clk_enable(usb_dev_clk);
         if (ret < 0) {
                 dev_err(&pdev->dev, "failed to start USB DEV Clock\n");
-                goto out5;
+                goto fail_deven;
         }
 
         /* Enable USB otg clocks */
@@ -279,7 +278,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
         if (IS_ERR(usb_otg_clk)) {
                 dev_err(&pdev->dev, "failed to acquire USB DEV Clock\n");
                 ret = PTR_ERR(usb_otg_clk);
-                goto out6;
+                goto fail_otg;
         }
 
         __raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL);
@@ -287,7 +286,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
         ret = clk_enable(usb_otg_clk);
         if (ret < 0) {
                 dev_err(&pdev->dev, "failed to start USB DEV Clock\n");
-                goto out7;
+                goto fail_otgen;
         }
 
         isp1301_configure();
@@ -296,14 +295,14 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
         if (!hcd) {
                 dev_err(&pdev->dev, "Failed to allocate HC buffer\n");
                 ret = -ENOMEM;
-                goto out8;
+                goto fail_hcd;
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         hcd->regs = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(hcd->regs)) {
                 ret = PTR_ERR(hcd->regs);
-                goto out8;
+                goto fail_resource;
         }
         hcd->rsrc_start = res->start;
         hcd->rsrc_len = resource_size(res);
@@ -311,7 +310,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
         irq = platform_get_irq(pdev, 0);
         if (irq < 0) {
                 ret = -ENXIO;
-                goto out8;
+                goto fail_resource;
         }
 
         nxp_start_hc();
@@ -325,23 +324,24 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
                 return ret;
 
         nxp_stop_hc();
-out8:
+fail_resource:
         usb_put_hcd(hcd);
-out7:
+fail_hcd:
         clk_disable(usb_otg_clk);
-out6:
+fail_otgen:
         clk_put(usb_otg_clk);
-out5:
+fail_otg:
         clk_disable(usb_dev_clk);
-out4:
+fail_deven:
         clk_put(usb_dev_clk);
-out3:
+fail_dev:
+fail_rate:
         clk_disable(usb_pll_clk);
-out2:
+fail_pllen:
         clk_put(usb_pll_clk);
-out1:
+fail_pll:
+fail_disable:
         isp1301_i2c_client = NULL;
-out:
         return ret;
 }
 
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
index 08e811d438f3..8f713571a0b7 100644
--- a/drivers/usb/host/ohci-omap3.c
+++ b/drivers/usb/host/ohci-omap3.c
@@ -114,8 +114,6 @@ static const struct hc_driver ohci_omap3_hc_driver = {
 
 /*-------------------------------------------------------------------------*/
 
-static u64 omap_ohci_dma_mask = DMA_BIT_MASK(32);
-
 /*
  * configure so an HC device and id are always provided
  * always called with process context; sleeping is OK
@@ -168,8 +166,10 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
          * Since shared usb code relies on it, set it here for now.
          * Once we have dma capability bindings this can go away.
          */
-        if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &omap_ohci_dma_mask;
+        if (!dev->dma_mask)
+                dev->dma_mask = &dev->coherent_dma_mask;
+        if (!dev->coherent_dma_mask)
+                dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
         hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev,
                         dev_name(dev));
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 4e0f088b6d2b..3a9c01d8b79c 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -282,8 +282,6 @@ static const struct of_device_id pxa_ohci_dt_ids[] = {
 
 MODULE_DEVICE_TABLE(of, pxa_ohci_dt_ids);
 
-static u64 pxa_ohci_dma_mask = DMA_BIT_MASK(32);
-
 static int ohci_pxa_of_init(struct platform_device *pdev)
 {
         struct device_node *np = pdev->dev.of_node;
@@ -298,7 +296,9 @@ static int ohci_pxa_of_init(struct platform_device *pdev)
          * Once we have dma capability bindings this can go away.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &pxa_ohci_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
         if (!pdata)
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 6a7cb1407326..cc9dd9e4f05e 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -91,8 +91,6 @@ static const struct hc_driver ohci_spear_hc_driver = {
         .start_port_reset       = ohci_start_port_reset,
 };
 
-static u64 spear_ohci_dma_mask = DMA_BIT_MASK(32);
-
 static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
 {
         const struct hc_driver *driver = &ohci_spear_hc_driver;
@@ -114,7 +112,9 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
          * Once we have dma capability bindings this can go away.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &spear_ohci_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         usbh_clk = devm_clk_get(&pdev->dev, NULL);
         if (IS_ERR(usbh_clk)) {
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index c9d114965123..4a6df2d8f902 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -3084,7 +3084,7 @@ static int oxu_hub_status_data(struct usb_hcd *hcd, char *buf)
         int ports, i, retval = 1;
         unsigned long flags;
 
-        /* if !USB_SUSPEND, root hub timers won't get shut down ... */
+        /* if !PM_RUNTIME, root hub timers won't get shut down ... */
         if (!HC_IS_RUNNING(hcd->state))
                 return 0;
 
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index ad4483efb6d6..b2ec7fe758dd 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -22,7 +22,7 @@
  * and usb-storage.
  *
  * TODO:
- * - usb suspend/resume triggered by sl811 (with USB_SUSPEND)
+ * - usb suspend/resume triggered by sl811 (with PM_RUNTIME)
  * - various issues noted in the code
  * - performance work; use both register banks; ...
  * - use urb->iso_frame_desc[] with ISO transfers
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index f87bee6d2789..9189bc984c98 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -225,7 +225,8 @@ static int uhci_hub_status_data(struct usb_hcd *hcd, char *buf)
                 /* auto-stop if nothing connected for 1 second */
                 if (any_ports_active(uhci))
                         uhci->rh_state = UHCI_RH_RUNNING;
-                else if (time_after_eq(jiffies, uhci->auto_stop_time))
+                else if (time_after_eq(jiffies, uhci->auto_stop_time) &&
+                                !uhci->wait_for_hp)
                         suspend_rh(uhci, UHCI_RH_AUTO_STOPPED);
                 break;
 
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index 5382f3a8670d..e11b70ae5f6f 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -60,8 +60,6 @@ static const struct hc_driver uhci_platform_hc_driver = {
         .hub_control =          uhci_hub_control,
 };
 
-static u64 platform_uhci_dma_mask = DMA_BIT_MASK(32);
-
 static int uhci_hcd_platform_probe(struct platform_device *pdev)
 {
         struct usb_hcd *hcd;
@@ -78,7 +76,9 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
          * Once we have dma capability bindings this can go away.
          */
         if (!pdev->dev.dma_mask)
-                pdev->dev.dma_mask = &platform_uhci_dma_mask;
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        if (!pdev->dev.coherent_dma_mask)
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
         hcd = usb_create_hcd(&uhci_platform_hc_driver, &pdev->dev,
                         pdev->name);
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index f0976d8190bc..041c6ddb695c 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -1287,7 +1287,7 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb,
                 return -EINVAL;         /* Can't change the period */
 
         } else {
-                next = uhci->frame_number + 2;
+                next = uhci->frame_number + 1;
 
                 /* Find the next unused frame */
                 if (list_empty(&qh->queue)) {
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 965b539bc474..2cfc465925bd 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1423,15 +1423,17 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
         ep_ctx->ep_info2 |= cpu_to_le32(xhci_get_endpoint_type(udev, ep));
 
         /* Set the max packet size and max burst */
+        max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
+        max_burst = 0;
         switch (udev->speed) {
         case USB_SPEED_SUPER:
-                max_packet = usb_endpoint_maxp(&ep->desc);
-                ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
                 /* dig out max burst from ep companion desc */
-                max_packet = ep->ss_ep_comp.bMaxBurst;
-                ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_packet));
+                max_burst = ep->ss_ep_comp.bMaxBurst;
                 break;
         case USB_SPEED_HIGH:
+                /* Some devices get this wrong */
+                if (usb_endpoint_xfer_bulk(&ep->desc))
+                        max_packet = 512;
                 /* bits 11:12 specify the number of additional transaction
                  * opportunities per microframe (USB 2.0, section 9.6.6)
                  */
@@ -1439,17 +1441,16 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
                                 usb_endpoint_xfer_int(&ep->desc)) {
                         max_burst = (usb_endpoint_maxp(&ep->desc)
                                      & 0x1800) >> 11;
-                        ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_burst));
                 }
-                /* Fall through */
+                break;
         case USB_SPEED_FULL:
         case USB_SPEED_LOW:
-                max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
-                ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
                 break;
         default:
                 BUG();
         }
+        ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet) |
+                        MAX_BURST(max_burst));
         max_esit_payload = xhci_get_max_esit_payload(xhci, udev, ep);
         ep_ctx->tx_info = cpu_to_le32(MAX_ESIT_PAYLOAD_FOR_EP(max_esit_payload));
 
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 3a18e44e9391..e1b661d04021 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -560,6 +560,7 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
                 if (!config) {
                         dev_err(&pdev->dev,
                                 "failed to allocate musb hdrc config\n");
+                        ret = -ENOMEM;
                         goto err2;
                 }
 
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 3551f1a30c65..628b93fe5ccc 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -549,7 +549,8 @@ static int omap2430_probe(struct platform_device *pdev)
                 glue->control_otghs = omap_get_control_dev();
                 if (IS_ERR(glue->control_otghs)) {
                         dev_vdbg(&pdev->dev, "Failed to get control device\n");
-                        return -ENODEV;
+                        ret = PTR_ERR(glue->control_otghs);
+                        goto err2;
                 }
         } else {
                 glue->control_otghs = ERR_PTR(-ENODEV);
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 371d0e74e909..7ef3eb8617a6 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -25,7 +25,7 @@ config AB8500_USB
 
 config FSL_USB2_OTG
         bool "Freescale USB OTG Transceiver Driver"
-        depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_SUSPEND
+        depends on USB_EHCI_FSL && USB_FSL_USB2 && PM_RUNTIME
         select USB_OTG
         help
           Enable this to support Freescale USB OTG transceiver.
@@ -139,7 +139,6 @@ config USB_ISP1301
         tristate "NXP ISP1301 USB transceiver support"
         depends on USB || USB_GADGET
         depends on I2C
-        select USB_OTG_UTILS
         help
           Say Y here to add support for the NXP ISP1301 USB transceiver driver.
           This chip is typically used as USB transceiver for USB host, gadget
@@ -162,7 +161,7 @@ config USB_MSM_OTG
 
 config USB_MV_OTG
         tristate "Marvell USB OTG support"
-        depends on USB_EHCI_MV && USB_MV_UDC && USB_SUSPEND
+        depends on USB_EHCI_MV && USB_MV_UDC && PM_RUNTIME
         select USB_OTG
         help
           Say Y here if you want to build Marvell USB OTG transciever
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 4acef26a2ef5..e5eb1b5a04eb 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -892,8 +892,6 @@ static int ab8500_usb_remove(struct platform_device *pdev)
         else if (ab->mode == USB_PERIPHERAL)
                 ab8500_usb_peri_phy_dis(ab);
 
-        platform_set_drvdata(pdev, NULL);
-
         return 0;
 }
 
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 97b9308507c3..e771bafb9f1d 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -799,6 +799,7 @@ static int fsl_otg_conf(struct platform_device *pdev)
 
         /* initialize the otg structure */
         fsl_otg_tc->phy.label = DRIVER_DESC;
+        fsl_otg_tc->phy.dev = &pdev->dev;
         fsl_otg_tc->phy.set_power = fsl_otg_set_power;
 
         fsl_otg_tc->phy.otg->phy = &fsl_otg_tc->phy;
diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c
index 4c76074e518d..8443335c2ea0 100644
--- a/drivers/usb/phy/phy-gpio-vbus-usb.c
+++ b/drivers/usb/phy/phy-gpio-vbus-usb.c
@@ -266,6 +266,7 @@ static int __init gpio_vbus_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, gpio_vbus);
         gpio_vbus->dev = &pdev->dev;
         gpio_vbus->phy.label = "gpio-vbus";
+        gpio_vbus->phy.dev = gpio_vbus->dev;
         gpio_vbus->phy.set_power = gpio_vbus_set_power;
         gpio_vbus->phy.set_suspend = gpio_vbus_set_suspend;
         gpio_vbus->phy.state = OTG_STATE_UNDEFINED;
@@ -343,7 +344,6 @@ err_irq:
                 gpio_free(pdata->gpio_pullup);
         gpio_free(pdata->gpio_vbus);
 err_gpio:
-        platform_set_drvdata(pdev, NULL);
         kfree(gpio_vbus->phy.otg);
         kfree(gpio_vbus);
         return err;
@@ -365,7 +365,6 @@ static int __exit gpio_vbus_remove(struct platform_device *pdev)
         if (gpio_is_valid(pdata->gpio_pullup))
                 gpio_free(pdata->gpio_pullup);
         gpio_free(gpio);
-        platform_set_drvdata(pdev, NULL);
         kfree(gpio_vbus->phy.otg);
         kfree(gpio_vbus);
 
diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c
index 225ae6c97eeb..8a55b37d1a02 100644
--- a/drivers/usb/phy/phy-isp1301.c
+++ b/drivers/usb/phy/phy-isp1301.c
@@ -102,6 +102,7 @@ static int isp1301_probe(struct i2c_client *client,
         mutex_init(&isp->mutex);
 
         phy = &isp->phy;
+        phy->dev = &client->dev;
         phy->label = DRV_NAME;
         phy->init = isp1301_phy_init;
         phy->set_vbus = isp1301_phy_set_vbus;
diff --git a/drivers/usb/phy/phy-mv-u3d-usb.c b/drivers/usb/phy/phy-mv-u3d-usb.c
index f7838a43347c..1568ea63e338 100644
--- a/drivers/usb/phy/phy-mv-u3d-usb.c
+++ b/drivers/usb/phy/phy-mv-u3d-usb.c
@@ -278,11 +278,6 @@ static int mv_u3d_phy_probe(struct platform_device *pdev)
         }
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(dev, "missing mem resource\n");
-                return -ENODEV;
-        }
-
         phy_base = devm_ioremap_resource(dev, res);
         if (IS_ERR(phy_base))
                 return PTR_ERR(phy_base);
diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c
index c987bbe27851..4a6b03c73876 100644
--- a/drivers/usb/phy/phy-mv-usb.c
+++ b/drivers/usb/phy/phy-mv-usb.c
@@ -667,7 +667,6 @@ int mv_otg_remove(struct platform_device *pdev)
         mv_otg_disable(mvotg);
 
         usb_remove_phy(&mvotg->phy);
-        platform_set_drvdata(pdev, NULL);
 
         return 0;
 }
@@ -850,8 +849,6 @@ err_destroy_workqueue:
         flush_workqueue(mvotg->qwork);
         destroy_workqueue(mvotg->qwork);
 
-        platform_set_drvdata(pdev, NULL);
-
         return retval;
 }
 
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index 9d4381e64d51..bd601c537c8d 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -130,11 +130,6 @@ static int mxs_phy_probe(struct platform_device *pdev)
         int ret;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "can't get device resources\n");
-                return -ENOENT;
-        }
-
         base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(base))
                 return PTR_ERR(base);
@@ -160,6 +155,7 @@ static int mxs_phy_probe(struct platform_device *pdev)
         mxs_phy->phy.set_suspend        = mxs_phy_suspend;
         mxs_phy->phy.notify_connect     = mxs_phy_on_connect;
         mxs_phy->phy.notify_disconnect  = mxs_phy_on_disconnect;
+        mxs_phy->phy.type               = USB_PHY_TYPE_USB2;
 
         ATOMIC_INIT_NOTIFIER_HEAD(&mxs_phy->phy.notifier);
 
@@ -180,8 +176,6 @@ static int mxs_phy_remove(struct platform_device *pdev)
 
         usb_remove_phy(&mxs_phy->phy);
 
-        platform_set_drvdata(pdev, NULL);
-
         return 0;
 }
 
diff --git a/drivers/usb/phy/phy-nop.c b/drivers/usb/phy/phy-nop.c
index 74815beab0d9..55445e5d72e5 100644
--- a/drivers/usb/phy/phy-nop.c
+++ b/drivers/usb/phy/phy-nop.c
@@ -254,8 +254,6 @@ static int nop_usb_xceiv_remove(struct platform_device *pdev)
 
         usb_remove_phy(&nop->phy);
 
-        platform_set_drvdata(pdev, NULL);
-
         return 0;
 }
 
diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c
index 45ffe036dacc..9d5e273abcc7 100644
--- a/drivers/usb/phy/phy-samsung-usb2.c
+++ b/drivers/usb/phy/phy-samsung-usb2.c
@@ -363,11 +363,6 @@ static int samsung_usb2phy_probe(struct platform_device *pdev)
         int ret;
 
         phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!phy_mem) {
-                dev_err(dev, "%s: missing mem resource\n", __func__);
-                return -ENODEV;
-        }
-
         phy_base = devm_ioremap_resource(dev, phy_mem);
         if (IS_ERR(phy_base))
                 return PTR_ERR(phy_base);
diff --git a/drivers/usb/phy/phy-samsung-usb3.c b/drivers/usb/phy/phy-samsung-usb3.c
index 133f3d0c554f..5a9efcbcb532 100644
--- a/drivers/usb/phy/phy-samsung-usb3.c
+++ b/drivers/usb/phy/phy-samsung-usb3.c
@@ -239,11 +239,6 @@ static int samsung_usb3phy_probe(struct platform_device *pdev)
         int ret;
 
         phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!phy_mem) {
-                dev_err(dev, "%s: missing mem resource\n", __func__);
-                return -ENODEV;
-        }
-
         phy_base = devm_ioremap_resource(dev, phy_mem);
         if (IS_ERR(phy_base))
                 return PTR_ERR(phy_base);
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 242b5776648a..7260ec660347 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -189,6 +189,8 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) },
         { USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) },
+        { USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_CC_PID) },
+        { USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_AGP_PID) },
         { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
         { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
         { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
@@ -924,8 +926,8 @@ static int  ftdi_tiocmset(struct tty_struct *tty,
 static int  ftdi_ioctl(struct tty_struct *tty,
                         unsigned int cmd, unsigned long arg);
 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
-static int ftdi_chars_in_buffer(struct tty_struct *tty);
-static int ftdi_get_modem_status(struct tty_struct *tty,
+static bool ftdi_tx_empty(struct usb_serial_port *port);
+static int ftdi_get_modem_status(struct usb_serial_port *port,
                                                 unsigned char status[2]);
 
 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
@@ -961,7 +963,7 @@ static struct usb_serial_driver ftdi_sio_device = {
         .ioctl =                ftdi_ioctl,
         .set_termios =          ftdi_set_termios,
         .break_ctl =            ftdi_break_ctl,
-        .chars_in_buffer =      ftdi_chars_in_buffer,
+        .tx_empty =             ftdi_tx_empty,
 };
 
 static struct usb_serial_driver * const serial_drivers[] = {
@@ -2056,27 +2058,18 @@ static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
 
 }
 
-static int ftdi_chars_in_buffer(struct tty_struct *tty)
+static bool ftdi_tx_empty(struct usb_serial_port *port)
 {
-        struct usb_serial_port *port = tty->driver_data;
-        int chars;
         unsigned char buf[2];
         int ret;
 
-        chars = usb_serial_generic_chars_in_buffer(tty);
-        if (chars)
-                goto out;
-
-        /* Check if hardware buffer is empty. */
-        ret = ftdi_get_modem_status(tty, buf);
+        ret = ftdi_get_modem_status(port, buf);
         if (ret == 2) {
                 if (!(buf[1] & FTDI_RS_TEMT))
-                        chars = 1;
+                        return false;
         }
-out:
-        dev_dbg(&port->dev, "%s - %d\n", __func__, chars);
 
-        return chars;
+        return true;
 }
 
 /* old_termios contains the original termios settings and tty->termios contains
@@ -2268,10 +2261,9 @@ no_c_cflag_changes:
  * Returns the number of status bytes retrieved (device dependant), or
  * negative error code.
  */
-static int ftdi_get_modem_status(struct tty_struct *tty,
+static int ftdi_get_modem_status(struct usb_serial_port *port,
                                                 unsigned char status[2])
 {
-        struct usb_serial_port *port = tty->driver_data;
         struct ftdi_private *priv = usb_get_serial_port_data(port);
         unsigned char *buf;
         int len;
@@ -2336,7 +2328,7 @@ static int ftdi_tiocmget(struct tty_struct *tty)
         unsigned char buf[2];
         int ret;
 
-        ret = ftdi_get_modem_status(tty, buf);
+        ret = ftdi_get_modem_status(port, buf);
         if (ret < 0)
                 return ret;
 
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 98528270c43c..6dd79253205d 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -772,6 +772,8 @@
  */
 #define NEWPORT_VID                     0x104D
 #define NEWPORT_AGILIS_PID              0x3000
+#define NEWPORT_CONEX_CC_PID            0x3002
+#define NEWPORT_CONEX_AGP_PID           0x3006
 
 /* Interbiometrics USB I/O Board */
 /* Developed for Interbiometrics by Rudolf Gugler */
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 297665fdd16d..ba45170c78e5 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -253,6 +253,37 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
 }
 EXPORT_SYMBOL_GPL(usb_serial_generic_chars_in_buffer);
 
+void usb_serial_generic_wait_until_sent(struct tty_struct *tty, long timeout)
+{
+        struct usb_serial_port *port = tty->driver_data;
+        unsigned int bps;
+        unsigned long period;
+        unsigned long expire;
+
+        bps = tty_get_baud_rate(tty);
+        if (!bps)
+                bps = 9600;     /* B0 */
+        /*
+         * Use a poll-period of roughly the time it takes to send one
+         * character or at least one jiffy.
+         */
+        period = max_t(unsigned long, (10 * HZ / bps), 1);
+        period = min_t(unsigned long, period, timeout);
+
+        dev_dbg(&port->dev, "%s - timeout = %u ms, period = %u ms\n",
+                                        __func__, jiffies_to_msecs(timeout),
+                                        jiffies_to_msecs(period));
+        expire = jiffies + timeout;
+        while (!port->serial->type->tx_empty(port)) {
+                schedule_timeout_interruptible(period);
+                if (signal_pending(current))
+                        break;
+                if (time_after(jiffies, expire))
+                        break;
+        }
+}
+EXPORT_SYMBOL_GPL(usb_serial_generic_wait_until_sent);
+
 static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
                                                 int index, gfp_t mem_flags)
 {
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 158bf4bc29cc..1be6ba7bee27 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2019,8 +2019,6 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
         struct edgeport_port *edge_port = usb_get_serial_port_data(port);
         int chars = 0;
         unsigned long flags;
-        int ret;
-
         if (edge_port == NULL)
                 return 0;
 
@@ -2028,16 +2026,22 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
         chars = kfifo_len(&edge_port->write_fifo);
         spin_unlock_irqrestore(&edge_port->ep_lock, flags);
 
-        if (!chars) {
-                ret = tx_active(edge_port);
-                if (ret > 0)
-                        chars = ret;
-        }
-
         dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
         return chars;
 }
 
+static bool edge_tx_empty(struct usb_serial_port *port)
+{
+        struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+        int ret;
+
+        ret = tx_active(edge_port);
+        if (ret > 0)
+                return false;
+
+        return true;
+}
+
 static void edge_throttle(struct tty_struct *tty)
 {
         struct usb_serial_port *port = tty->driver_data;
@@ -2557,6 +2561,7 @@ static struct usb_serial_driver edgeport_1port_device = {
         .write                  = edge_write,
         .write_room             = edge_write_room,
         .chars_in_buffer        = edge_chars_in_buffer,
+        .tx_empty               = edge_tx_empty,
         .break_ctl              = edge_break,
         .read_int_callback      = edge_interrupt_callback,
         .read_bulk_callback     = edge_bulk_in_callback,
@@ -2589,6 +2594,7 @@ static struct usb_serial_driver edgeport_2port_device = {
         .write                  = edge_write,
         .write_room             = edge_write_room,
         .chars_in_buffer        = edge_chars_in_buffer,
+        .tx_empty               = edge_tx_empty,
         .break_ctl              = edge_break,
         .read_int_callback      = edge_interrupt_callback,
         .read_bulk_callback     = edge_bulk_in_callback,
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 734372846abb..93d02bc4eb52 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -196,6 +196,7 @@ static void option_instat_callback(struct urb *urb);
 
 #define DELL_PRODUCT_5800_MINICARD_VZW          0x8195  /* Novatel E362 */
 #define DELL_PRODUCT_5800_V2_MINICARD_VZW       0x8196  /* Novatel E362 */
+#define DELL_PRODUCT_5804_MINICARD_ATT          0x819b  /* Novatel E371 */
 
 #define KYOCERA_VENDOR_ID                       0x0c88
 #define KYOCERA_PRODUCT_KPC650                  0x17da
@@ -341,8 +342,8 @@ static void option_instat_callback(struct urb *urb);
 #define CINTERION_PRODUCT_EU3_E                 0x0051
 #define CINTERION_PRODUCT_EU3_P                 0x0052
 #define CINTERION_PRODUCT_PH8                   0x0053
-#define CINTERION_PRODUCT_AH6                   0x0055
-#define CINTERION_PRODUCT_PLS8                  0x0060
+#define CINTERION_PRODUCT_AHXX                  0x0055
+#define CINTERION_PRODUCT_PLXX                  0x0060
 
 /* Olivetti products */
 #define OLIVETTI_VENDOR_ID                      0x0b3c
@@ -771,6 +772,7 @@ static const struct usb_device_id option_ids[] = {
         { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) },         /* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
         { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_MINICARD_VZW, 0xff, 0xff, 0xff) },
         { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_V2_MINICARD_VZW, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) },
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },   /* ADU-E100, ADU-310 */
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
         { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -966,6 +968,8 @@ static const struct usb_device_id option_ids[] = {
           .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
         { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0330, 0xff, 0xff, 0xff) },
         { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0395, 0xff, 0xff, 0xff) },
+        { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0412, 0xff, 0xff, 0xff), /* Telewell TW-LTE 4G */
+          .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
         { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) },
         { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) },
         { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff),
@@ -1264,8 +1268,9 @@ static const struct usb_device_id option_ids[] = {
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_E) },
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8) },
-        { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AH6) },
-        { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLS8) },
+        { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
+        { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
+                .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, 
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
         { USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index cac47aef2918..c92c5ed4e580 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -101,6 +101,7 @@ static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
                 const unsigned char *data, int count);
 static int ti_write_room(struct tty_struct *tty);
 static int ti_chars_in_buffer(struct tty_struct *tty);
+static bool ti_tx_empty(struct usb_serial_port *port);
 static void ti_throttle(struct tty_struct *tty);
 static void ti_unthrottle(struct tty_struct *tty);
 static int ti_ioctl(struct tty_struct *tty,
@@ -222,6 +223,7 @@ static struct usb_serial_driver ti_1port_device = {
         .write                  = ti_write,
         .write_room             = ti_write_room,
         .chars_in_buffer        = ti_chars_in_buffer,
+        .tx_empty               = ti_tx_empty,
         .throttle               = ti_throttle,
         .unthrottle             = ti_unthrottle,
         .ioctl                  = ti_ioctl,
@@ -253,6 +255,7 @@ static struct usb_serial_driver ti_2port_device = {
         .write                  = ti_write,
         .write_room             = ti_write_room,
         .chars_in_buffer        = ti_chars_in_buffer,
+        .tx_empty               = ti_tx_empty,
         .throttle               = ti_throttle,
         .unthrottle             = ti_unthrottle,
         .ioctl                  = ti_ioctl,
@@ -684,8 +687,6 @@ static int ti_chars_in_buffer(struct tty_struct *tty)
         struct ti_port *tport = usb_get_serial_port_data(port);
         int chars = 0;
         unsigned long flags;
-        int ret;
-        u8 lsr;
 
         if (tport == NULL)
                 return 0;
@@ -694,16 +695,22 @@ static int ti_chars_in_buffer(struct tty_struct *tty)
         chars = kfifo_len(&tport->write_fifo);
         spin_unlock_irqrestore(&tport->tp_lock, flags);
 
-        if (!chars) {
-                ret = ti_get_lsr(tport, &lsr);
-                if (!ret && !(lsr & TI_LSR_TX_EMPTY))
-                        chars = 1;
-        }
-
         dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
         return chars;
 }
 
+static bool ti_tx_empty(struct usb_serial_port *port)
+{
+        struct ti_port *tport = usb_get_serial_port_data(port);
+        int ret;
+        u8 lsr;
+
+        ret = ti_get_lsr(tport, &lsr);
+        if (!ret && !(lsr & TI_LSR_TX_EMPTY))
+                return false;
+
+        return true;
+}
 
 static void ti_throttle(struct tty_struct *tty)
 {
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index cf75beb1251b..4753c005cfb6 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -359,20 +359,29 @@ static int serial_chars_in_buffer(struct tty_struct *tty)
 {
         struct usb_serial_port *port = tty->driver_data;
         struct usb_serial *serial = port->serial;
-        int count = 0;
 
         dev_dbg(tty->dev, "%s\n", __func__);
 
-        mutex_lock(&serial->disc_mutex);
-        /* if the device was unplugged then any remaining characters
-           fell out of the connector ;) */
         if (serial->disconnected)
-                count = 0;
-        else
-                count = serial->type->chars_in_buffer(tty);
-        mutex_unlock(&serial->disc_mutex);
+                return 0;
+
+        return serial->type->chars_in_buffer(tty);
+}
+
+static void serial_wait_until_sent(struct tty_struct *tty, int timeout)
+{
+        struct usb_serial_port *port = tty->driver_data;
+        struct usb_serial *serial = port->serial;
+
+        dev_dbg(tty->dev, "%s\n", __func__);
+
+        if (!port->serial->type->wait_until_sent)
+                return;
 
-        return count;
+        mutex_lock(&serial->disc_mutex);
+        if (!serial->disconnected)
+                port->serial->type->wait_until_sent(tty, timeout);
+        mutex_unlock(&serial->disc_mutex);
 }
 
 static void serial_throttle(struct tty_struct *tty)
@@ -1191,6 +1200,7 @@ static const struct tty_operations serial_ops = {
         .unthrottle =           serial_unthrottle,
         .break_ctl =            serial_break,
         .chars_in_buffer =      serial_chars_in_buffer,
+        .wait_until_sent =      serial_wait_until_sent,
         .tiocmget =             serial_tiocmget,
         .tiocmset =             serial_tiocmset,
         .get_icount =           serial_get_icount,
@@ -1316,6 +1326,8 @@ static void usb_serial_operations_init(struct usb_serial_driver *device)
         set_to_generic_if_null(device, close);
         set_to_generic_if_null(device, write_room);
         set_to_generic_if_null(device, chars_in_buffer);
+        if (device->tx_empty)
+                set_to_generic_if_null(device, wait_until_sent);
         set_to_generic_if_null(device, read_bulk_callback);
         set_to_generic_if_null(device, write_bulk_callback);
         set_to_generic_if_null(device, process_read_urb);
diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index 8623577bbbe7..281be56d5648 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -105,8 +105,9 @@ struct rts51x_chip {
         int status_len;
 
         u32 flag;
-#ifdef CONFIG_REALTEK_AUTOPM
         struct us_data *us;
+
+#ifdef CONFIG_REALTEK_AUTOPM
         struct timer_list rts51x_suspend_timer;
         unsigned long timer_expires;
         int pwr_state;
@@ -988,6 +989,7 @@ static int init_realtek_cr(struct us_data *us)
         us->extra = chip;
         us->extra_destructor = realtek_cr_destructor;
         us->max_lun = chip->max_lun = rts51x_get_max_lun(us);
+        chip->us = us;
 
         usb_stor_dbg(us, "chip->max_lun = %d\n", chip->max_lun);
 
@@ -1010,10 +1012,8 @@ static int init_realtek_cr(struct us_data *us)
                         SET_AUTO_DELINK(chip);
         }
 #ifdef CONFIG_REALTEK_AUTOPM
-        if (ss_en) {
-                chip->us = us;
+        if (ss_en)
                 realtek_cr_autosuspend_setup(us);
-        }
 #endif
 
         usb_stor_dbg(us, "chip->flag = 0x%x\n", chip->flag);
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index bff0775e258c..5174ebac288d 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -3,6 +3,7 @@
  *
  * Since these may be in userspace, we use (inline) accessors.
  */
+#include <linux/module.h>
 #include <linux/vringh.h>
 #include <linux/virtio_ring.h>
 #include <linux/kernel.h>
@@ -1005,3 +1006,5 @@ int vringh_need_notify_kern(struct vringh *vrh)
         return __vringh_need_notify(vrh, getu16_kern);
 }
 EXPORT_SYMBOL(vringh_need_notify_kern);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index d71d60f94fc1..2e937bdace6f 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2199,7 +2199,7 @@ config FB_XILINX
 
 config FB_GOLDFISH
         tristate "Goldfish Framebuffer"
-        depends on FB
+        depends on FB && HAS_DMA
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
         select FB_CFB_IMAGEBLIT
@@ -2453,6 +2453,23 @@ config FB_HYPERV
         help
           This framebuffer driver supports Microsoft Hyper-V Synthetic Video.
 
+config FB_SIMPLE
+        bool "Simple framebuffer support"
+        depends on (FB = y) && OF
+        select FB_CFB_FILLRECT
+        select FB_CFB_COPYAREA
+        select FB_CFB_IMAGEBLIT
+        help
+          Say Y if you want support for a simple frame-buffer.
+
+          This driver assumes that the display hardware has been initialized
+          before the kernel boots, and the kernel will simply render to the
+          pre-allocated frame buffer surface.
+
+          Configuration re: surface address, size, and format must be provided
+          through device tree, or potentially plain old platform data in the
+          future.
+
 source "drivers/video/omap/Kconfig"
 source "drivers/video/omap2/Kconfig"
 source "drivers/video/exynos/Kconfig"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 7234e4a959e8..e8bae8dd4804 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -166,6 +166,7 @@ obj-$(CONFIG_FB_MX3)		  += mx3fb.o
 obj-$(CONFIG_FB_DA8XX)            += da8xx-fb.o
 obj-$(CONFIG_FB_MXS)              += mxsfb.o
 obj-$(CONFIG_FB_SSD1307)          += ssd1307fb.o
+obj-$(CONFIG_FB_SIMPLE)           += simplefb.o
 
 # the test framebuffer is last
 obj-$(CONFIG_FB_VIRTUAL)          += vfb.o
diff --git a/drivers/video/console/Makefile b/drivers/video/console/Makefile
index a862e9173ebe..48da25c96cd3 100644
--- a/drivers/video/console/Makefile
+++ b/drivers/video/console/Makefile
@@ -18,6 +18,8 @@ font-objs-$(CONFIG_FONT_MINI_4x6)  += font_mini_4x6.o
 
 font-objs += $(font-objs-y)
 
+obj-$(CONFIG_FONTS) += font.o
+
 # Each configuration option enables a list of files.
 
 obj-$(CONFIG_DUMMY_CONSOLE)       += dummycon.o
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 17f4d55c621c..a109934c0478 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1065,10 +1065,6 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
         mutex_init(&hdmi.ip_data.lock);
 
         res = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                DSSERR("can't get IORESOURCE_MEM HDMI\n");
-                return -EINVAL;
-        }
 
         /* Base address taken from platform */
         hdmi.ip_data.base_wp = devm_ioremap_resource(&pdev->dev, res);
diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c
index 5261229c79af..f346b02eee1d 100644
--- a/drivers/video/omap2/vrfb.c
+++ b/drivers/video/omap2/vrfb.c
@@ -353,11 +353,6 @@ static int __init vrfb_probe(struct platform_device *pdev)
         /* first resource is the register res, the rest are vrfb contexts */
 
         mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!mem) {
-                dev_err(&pdev->dev, "can't get vrfb base address\n");
-                return -EINVAL;
-        }
-
         vrfb_base = devm_ioremap_resource(&pdev->dev, mem);
         if (IS_ERR(vrfb_base))
                 return PTR_ERR(vrfb_base);
diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
new file mode 100644
index 000000000000..e2e9e3e61b72
--- /dev/null
+++ b/drivers/video/simplefb.c
@@ -0,0 +1,234 @@
+/*
+ * Simplest possible simple frame-buffer driver, as a platform device
+ *
+ * Copyright (c) 2013, Stephen Warren
+ *
+ * Based on q40fb.c, which was:
+ * Copyright (C) 2001 Richard Zidlicky <rz@linux-m68k.org>
+ *
+ * Also based on offb.c, which was:
+ * Copyright (C) 1997 Geert Uytterhoeven
+ * Copyright (C) 1996 Paul Mackerras
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+static struct fb_fix_screeninfo simplefb_fix = {
+        .id             = "simple",
+        .type           = FB_TYPE_PACKED_PIXELS,
+        .visual         = FB_VISUAL_TRUECOLOR,
+        .accel          = FB_ACCEL_NONE,
+};
+
+static struct fb_var_screeninfo simplefb_var = {
+        .height         = -1,
+        .width          = -1,
+        .activate       = FB_ACTIVATE_NOW,
+        .vmode          = FB_VMODE_NONINTERLACED,
+};
+
+static int simplefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+                              u_int transp, struct fb_info *info)
+{
+        u32 *pal = info->pseudo_palette;
+        u32 cr = red >> (16 - info->var.red.length);
+        u32 cg = green >> (16 - info->var.green.length);
+        u32 cb = blue >> (16 - info->var.blue.length);
+        u32 value;
+
+        if (regno >= 16)
+                return -EINVAL;
+
+        value = (cr << info->var.red.offset) |
+                (cg << info->var.green.offset) |
+                (cb << info->var.blue.offset);
+        if (info->var.transp.length > 0) {
+                u32 mask = (1 << info->var.transp.length) - 1;
+                mask <<= info->var.transp.offset;
+                value |= mask;
+        }
+        pal[regno] = value;
+
+        return 0;
+}
+
+static struct fb_ops simplefb_ops = {
+        .owner          = THIS_MODULE,
+        .fb_setcolreg   = simplefb_setcolreg,
+        .fb_fillrect    = cfb_fillrect,
+        .fb_copyarea    = cfb_copyarea,
+        .fb_imageblit   = cfb_imageblit,
+};
+
+struct simplefb_format {
+        const char *name;
+        u32 bits_per_pixel;
+        struct fb_bitfield red;
+        struct fb_bitfield green;
+        struct fb_bitfield blue;
+        struct fb_bitfield transp;
+};
+
+static struct simplefb_format simplefb_formats[] = {
+        { "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0} },
+};
+
+struct simplefb_params {
+        u32 width;
+        u32 height;
+        u32 stride;
+        struct simplefb_format *format;
+};
+
+static int simplefb_parse_dt(struct platform_device *pdev,
+                           struct simplefb_params *params)
+{
+        struct device_node *np = pdev->dev.of_node;
+        int ret;
+        const char *format;
+        int i;
+
+        ret = of_property_read_u32(np, "width", &params->width);
+        if (ret) {
+                dev_err(&pdev->dev, "Can't parse width property\n");
+                return ret;
+        }
+
+        ret = of_property_read_u32(np, "height", &params->height);
+        if (ret) {
+                dev_err(&pdev->dev, "Can't parse height property\n");
+                return ret;
+        }
+
+        ret = of_property_read_u32(np, "stride", &params->stride);
+        if (ret) {
+                dev_err(&pdev->dev, "Can't parse stride property\n");
+                return ret;
+        }
+
+        ret = of_property_read_string(np, "format", &format);
+        if (ret) {
+                dev_err(&pdev->dev, "Can't parse format property\n");
+                return ret;
+        }
+        params->format = NULL;
+        for (i = 0; i < ARRAY_SIZE(simplefb_formats); i++) {
+                if (strcmp(format, simplefb_formats[i].name))
+                        continue;
+                params->format = &simplefb_formats[i];
+                break;
+        }
+        if (!params->format) {
+                dev_err(&pdev->dev, "Invalid format value\n");
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static int simplefb_probe(struct platform_device *pdev)
+{
+        int ret;
+        struct simplefb_params params;
+        struct fb_info *info;
+        struct resource *mem;
+
+        if (fb_get_options("simplefb", NULL))
+                return -ENODEV;
+
+        ret = simplefb_parse_dt(pdev, &params);
+        if (ret)
+                return ret;
+
+        mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!mem) {
+                dev_err(&pdev->dev, "No memory resource\n");
+                return -EINVAL;
+        }
+
+        info = framebuffer_alloc(sizeof(u32) * 16, &pdev->dev);
+        if (!info)
+                return -ENOMEM;
+        platform_set_drvdata(pdev, info);
+
+        info->fix = simplefb_fix;
+        info->fix.smem_start = mem->start;
+        info->fix.smem_len = resource_size(mem);
+        info->fix.line_length = params.stride;
+
+        info->var = simplefb_var;
+        info->var.xres = params.width;
+        info->var.yres = params.height;
+        info->var.xres_virtual = params.width;
+        info->var.yres_virtual = params.height;
+        info->var.bits_per_pixel = params.format->bits_per_pixel;
+        info->var.red = params.format->red;
+        info->var.green = params.format->green;
+        info->var.blue = params.format->blue;
+        info->var.transp = params.format->transp;
+
+        info->fbops = &simplefb_ops;
+        info->flags = FBINFO_DEFAULT;
+        info->screen_base = devm_ioremap(&pdev->dev, info->fix.smem_start,
+                                         info->fix.smem_len);
+        if (!info->screen_base) {
+                framebuffer_release(info);
+                return -ENODEV;
+        }
+        info->pseudo_palette = (void *)(info + 1);
+
+        ret = register_framebuffer(info);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "Unable to register simplefb: %d\n", ret);
+                framebuffer_release(info);
+                return ret;
+        }
+
+        dev_info(&pdev->dev, "fb%d: simplefb registered!\n", info->node);
+
+        return 0;
+}
+
+static int simplefb_remove(struct platform_device *pdev)
+{
+        struct fb_info *info = platform_get_drvdata(pdev);
+
+        unregister_framebuffer(info);
+        framebuffer_release(info);
+
+        return 0;
+}
+
+static const struct of_device_id simplefb_of_match[] = {
+        { .compatible = "simple-framebuffer", },
+        { },
+};
+MODULE_DEVICE_TABLE(of, simplefb_of_match);
+
+static struct platform_driver simplefb_driver = {
+        .driver = {
+                .name = "simple-framebuffer",
+                .owner = THIS_MODULE,
+                .of_match_table = simplefb_of_match,
+        },
+        .probe = simplefb_probe,
+        .remove = simplefb_remove,
+};
+module_platform_driver(simplefb_driver);
+
+MODULE_AUTHOR("Stephen Warren <swarren@wwwdotorg.org>");
+MODULE_DESCRIPTION("Simple framebuffer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index db2390aed387..6e94d8dd3d00 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -555,11 +555,6 @@ static int omap_hdq_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, hdq_data);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_dbg(&pdev->dev, "unable to get resource\n");
-                return -ENXIO;
-        }
-
         hdq_data->hdq_base = devm_ioremap_resource(dev, res);
         if (IS_ERR(hdq_data->hdq_base))
                 return PTR_ERR(hdq_data->hdq_base);
diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c
index d184c48a0482..37cb09b27b63 100644
--- a/drivers/watchdog/ath79_wdt.c
+++ b/drivers/watchdog/ath79_wdt.c
@@ -248,11 +248,6 @@ static int ath79_wdt_probe(struct platform_device *pdev)
                 return -EBUSY;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "no memory resource found\n");
-                return -EINVAL;
-        }
-
         wdt_base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(wdt_base))
                 return PTR_ERR(wdt_base);
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 100d4fbfde2a..bead7740c86a 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -217,11 +217,6 @@ static int davinci_wdt_probe(struct platform_device *pdev)
         dev_info(dev, "heartbeat %d sec\n", heartbeat);
 
         wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (wdt_mem == NULL) {
-                dev_err(dev, "failed to get memory region resource\n");
-                return -ENOENT;
-        }
-
         wdt_base = devm_ioremap_resource(dev, wdt_mem);
         if (IS_ERR(wdt_base))
                 return PTR_ERR(wdt_base);
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index ff908823688c..62946c2cb4f8 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -257,11 +257,6 @@ static int __init imx2_wdt_probe(struct platform_device *pdev)
         struct resource *res;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res) {
-                dev_err(&pdev->dev, "can't get device resources\n");
-                return -ENODEV;
-        }
-
         imx2_wdt.base = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(imx2_wdt.base))
                 return PTR_ERR(imx2_wdt.base);
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index f03bf501527f..9e02d60a364b 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -19,11 +19,10 @@ config XEN_SELFBALLOONING
           by the current usage of anonymous memory ("committed AS") and
           controlled by various sysfs-settable parameters.  Configuring
           FRONTSWAP is highly recommended; if it is not configured, self-
-          ballooning is disabled by default but can be enabled with the
-          'selfballooning' kernel boot parameter.  If FRONTSWAP is configured,
+          ballooning is disabled by default. If FRONTSWAP is configured,
           frontswap-selfshrinking is enabled by default but can be disabled
-          with the 'noselfshrink' kernel boot parameter; and self-ballooning
-          is enabled by default but can be disabled with the 'noselfballooning'
+          with the 'tmem.selfshrink=0' kernel boot parameter; and self-ballooning
+          is enabled by default but can be disabled with the 'tmem.selfballooning=0'
           kernel boot parameter.  Note that systems without a sufficiently
           large swap device should not enable self-ballooning.
 
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index a56776dbe095..930fb6817901 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -407,7 +407,8 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
                 nr_pages = ARRAY_SIZE(frame_list);
 
         for (i = 0; i < nr_pages; i++) {
-                if ((page = alloc_page(gfp)) == NULL) {
+                page = alloc_page(gfp);
+                if (page == NULL) {
                         nr_pages = i;
                         state = BP_EAGAIN;
                         break;
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index ca2b00e9d558..2cfc24d76fc5 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -504,7 +504,7 @@ static void privcmd_close(struct vm_area_struct *vma)
         struct page **pages = vma->vm_private_data;
         int numpgs = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 
-        if (!xen_feature(XENFEAT_auto_translated_physmap || !numpgs || !pages))
+        if (!xen_feature(XENFEAT_auto_translated_physmap) || !numpgs || !pages)
                 return;
 
         xen_unmap_domain_mfn_range(vma, numpgs, pages);
diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c
index e3600be4e7fa..18e8bd8fa947 100644
--- a/drivers/xen/tmem.c
+++ b/drivers/xen/tmem.c
@@ -11,11 +11,7 @@
 #include <linux/init.h>
 #include <linux/pagemap.h>
 #include <linux/cleancache.h>
-
-/* temporary ifdef until include/linux/frontswap.h is upstream */
-#ifdef CONFIG_FRONTSWAP
 #include <linux/frontswap.h>
-#endif
 
 #include <xen/xen.h>
 #include <xen/interface/xen.h>
@@ -24,6 +20,34 @@
 #include <asm/xen/hypervisor.h>
 #include <xen/tmem.h>
 
+#ifndef CONFIG_XEN_TMEM_MODULE
+bool __read_mostly tmem_enabled = false;
+
+static int __init enable_tmem(char *s)
+{
+        tmem_enabled = true;
+        return 1;
+}
+__setup("tmem", enable_tmem);
+#endif
+
+#ifdef CONFIG_CLEANCACHE
+static bool cleancache __read_mostly = true;
+module_param(cleancache, bool, S_IRUGO);
+static bool selfballooning __read_mostly = true;
+module_param(selfballooning, bool, S_IRUGO);
+#endif /* CONFIG_CLEANCACHE */
+
+#ifdef CONFIG_FRONTSWAP
+static bool frontswap __read_mostly = true;
+module_param(frontswap, bool, S_IRUGO);
+#endif /* CONFIG_FRONTSWAP */
+
+#ifdef CONFIG_XEN_SELFBALLOONING
+static bool selfshrinking __read_mostly = true;
+module_param(selfshrinking, bool, S_IRUGO);
+#endif /* CONFIG_XEN_SELFBALLOONING */
+
 #define TMEM_CONTROL               0
 #define TMEM_NEW_POOL              1
 #define TMEM_DESTROY_POOL          2
@@ -129,16 +153,6 @@ static int xen_tmem_flush_object(u32 pool_id, struct tmem_oid oid)
         return xen_tmem_op(TMEM_FLUSH_OBJECT, pool_id, oid, 0, 0, 0, 0, 0);
 }
 
-#ifndef CONFIG_XEN_TMEM_MODULE
-bool __read_mostly tmem_enabled = false;
-
-static int __init enable_tmem(char *s)
-{
-        tmem_enabled = true;
-        return 1;
-}
-__setup("tmem", enable_tmem);
-#endif
 
 #ifdef CONFIG_CLEANCACHE
 static int xen_tmem_destroy_pool(u32 pool_id)
@@ -230,20 +244,6 @@ static int tmem_cleancache_init_shared_fs(char *uuid, size_t pagesize)
         return xen_tmem_new_pool(shared_uuid, TMEM_POOL_SHARED, pagesize);
 }
 
-static bool disable_cleancache __read_mostly;
-static bool disable_selfballooning __read_mostly;
-#ifdef CONFIG_XEN_TMEM_MODULE
-module_param(disable_cleancache, bool, S_IRUGO);
-module_param(disable_selfballooning, bool, S_IRUGO);
-#else
-static int __init no_cleancache(char *s)
-{
-        disable_cleancache = true;
-        return 1;
-}
-__setup("nocleancache", no_cleancache);
-#endif
-
 static struct cleancache_ops tmem_cleancache_ops = {
         .put_page = tmem_cleancache_put_page,
         .get_page = tmem_cleancache_get_page,
@@ -361,20 +361,6 @@ static void tmem_frontswap_init(unsigned ignored)
                     xen_tmem_new_pool(private, TMEM_POOL_PERSIST, PAGE_SIZE);
 }
 
-static bool disable_frontswap __read_mostly;
-static bool disable_frontswap_selfshrinking __read_mostly;
-#ifdef CONFIG_XEN_TMEM_MODULE
-module_param(disable_frontswap, bool, S_IRUGO);
-module_param(disable_frontswap_selfshrinking, bool, S_IRUGO);
-#else
-static int __init no_frontswap(char *s)
-{
-        disable_frontswap = true;
-        return 1;
-}
-__setup("nofrontswap", no_frontswap);
-#endif
-
 static struct frontswap_ops tmem_frontswap_ops = {
         .store = tmem_frontswap_store,
         .load = tmem_frontswap_load,
@@ -382,8 +368,6 @@ static struct frontswap_ops tmem_frontswap_ops = {
         .invalidate_area = tmem_frontswap_flush_area,
         .init = tmem_frontswap_init
 };
-#else   /* CONFIG_FRONTSWAP */
-#define disable_frontswap_selfshrinking 1
 #endif
 
 static int xen_tmem_init(void)
@@ -391,7 +375,7 @@ static int xen_tmem_init(void)
         if (!xen_domain())
                 return 0;
 #ifdef CONFIG_FRONTSWAP
-        if (tmem_enabled && !disable_frontswap) {
+        if (tmem_enabled && frontswap) {
                 char *s = "";
                 struct frontswap_ops *old_ops =
                         frontswap_register_ops(&tmem_frontswap_ops);
@@ -408,7 +392,7 @@ static int xen_tmem_init(void)
 #endif
 #ifdef CONFIG_CLEANCACHE
         BUG_ON(sizeof(struct cleancache_filekey) != sizeof(struct tmem_oid));
-        if (tmem_enabled && !disable_cleancache) {
+        if (tmem_enabled && cleancache) {
                 char *s = "";
                 struct cleancache_ops *old_ops =
                         cleancache_register_ops(&tmem_cleancache_ops);
@@ -419,8 +403,15 @@ static int xen_tmem_init(void)
         }
 #endif
 #ifdef CONFIG_XEN_SELFBALLOONING
-        xen_selfballoon_init(!disable_selfballooning,
-                                !disable_frontswap_selfshrinking);
+        /*
+         * There is no point of driving pages to the swap system if they
+         * aren't going anywhere in tmem universe.
+         */
+        if (!frontswap) {
+                selfshrinking = false;
+                selfballooning = false;
+        }
+        xen_selfballoon_init(selfballooning, selfshrinking);
 #endif
         return 0;
 }
diff --git a/drivers/xen/xen-selfballoon.c b/drivers/xen/xen-selfballoon.c
index f2ef569c7cc1..f70984a892aa 100644
--- a/drivers/xen/xen-selfballoon.c
+++ b/drivers/xen/xen-selfballoon.c
@@ -53,15 +53,12 @@
  * System configuration note: Selfballooning should not be enabled on
  * systems without a sufficiently large swap device configured; for best
  * results, it is recommended that total swap be increased by the size
- * of the guest memory.  Also, while technically not required to be
- * configured, it is highly recommended that frontswap also be configured
- * and enabled when selfballooning is running.  So, selfballooning
- * is disabled by default if frontswap is not configured and can only
- * be enabled with the "selfballooning" kernel boot option; similarly
- * selfballooning is enabled by default if frontswap is configured and
- * can be disabled with the "noselfballooning" kernel boot option.  Finally,
- * when frontswap is configured, frontswap-selfshrinking can be disabled
- * with the "noselfshrink" kernel boot option.
+ * of the guest memory. Note, that selfballooning should be disabled by default
+ * if frontswap is not configured.  Similarly selfballooning should be enabled
+ * by default if frontswap is configured and can be disabled with the
+ * "tmem.selfballooning=0" kernel boot option.  Finally, when frontswap is
+ * configured, frontswap-selfshrinking can be disabled  with the
+ * "tmem.selfshrink=0" kernel boot option.
  *
  * Selfballooning is disallowed in domain0 and force-disabled.
  *
@@ -120,9 +117,6 @@ static DECLARE_DELAYED_WORK(selfballoon_worker, selfballoon_process);
 /* Enable/disable with sysfs. */
 static bool frontswap_selfshrinking __read_mostly;
 
-/* Enable/disable with kernel boot option. */
-static bool use_frontswap_selfshrink = true;
-
 /*
  * The default values for the following parameters were deemed reasonable
  * by experimentation, may be workload-dependent, and can all be
@@ -176,35 +170,6 @@ static void frontswap_selfshrink(void)
         frontswap_shrink(tgt_frontswap_pages);
 }
 
-static int __init xen_nofrontswap_selfshrink_setup(char *s)
-{
-        use_frontswap_selfshrink = false;
-        return 1;
-}
-
-__setup("noselfshrink", xen_nofrontswap_selfshrink_setup);
-
-/* Disable with kernel boot option. */
-static bool use_selfballooning = true;
-
-static int __init xen_noselfballooning_setup(char *s)
-{
-        use_selfballooning = false;
-        return 1;
-}
-
-__setup("noselfballooning", xen_noselfballooning_setup);
-#else /* !CONFIG_FRONTSWAP */
-/* Enable with kernel boot option. */
-static bool use_selfballooning;
-
-static int __init xen_selfballooning_setup(char *s)
-{
-        use_selfballooning = true;
-        return 1;
-}
-
-__setup("selfballooning", xen_selfballooning_setup);
 #endif /* CONFIG_FRONTSWAP */
 
 #define MB2PAGES(mb)    ((mb) << (20 - PAGE_SHIFT))
diff --git a/drivers/xen/xenbus/xenbus_dev_backend.c b/drivers/xen/xenbus/xenbus_dev_backend.c
index d73000800762..a6f42fc01407 100644
--- a/drivers/xen/xenbus/xenbus_dev_backend.c
+++ b/drivers/xen/xenbus/xenbus_dev_backend.c
@@ -70,22 +70,21 @@ static long xenbus_alloc(domid_t domid)
         return err;
 }
 
-static long xenbus_backend_ioctl(struct file *file, unsigned int cmd, unsigned long data)
+static long xenbus_backend_ioctl(struct file *file, unsigned int cmd,
+                                 unsigned long data)
 {
         if (!capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
         switch (cmd) {
-                case IOCTL_XENBUS_BACKEND_EVTCHN:
-                        if (xen_store_evtchn > 0)
-                                return xen_store_evtchn;
-                        return -ENODEV;
-
-                case IOCTL_XENBUS_BACKEND_SETUP:
-                        return xenbus_alloc(data);
-
-                default:
-                        return -ENOTTY;
+        case IOCTL_XENBUS_BACKEND_EVTCHN:
+                if (xen_store_evtchn > 0)
+                        return xen_store_evtchn;
+                return -ENODEV;
+        case IOCTL_XENBUS_BACKEND_SETUP:
+                return xenbus_alloc(data);
+        default:
+                return -ENOTTY;
         }
 }