46 files changed, 329 insertions, 258 deletions

diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index a4f30faa4f1f..1e359b62c40a 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -316,7 +316,7 @@ address           perms offset  dev   inode      pathname
 08049000-0804a000 rw-p 00001000 03:00 8312       /opt/test
 0804a000-0806b000 rw-p 00000000 00:00 0          [heap]
 a7cb1000-a7cb2000 ---p 00000000 00:00 0
-a7cb2000-a7eb2000 rw-p 00000000 00:00 0          [threadstack:001ff4b4]
+a7cb2000-a7eb2000 rw-p 00000000 00:00 0
 a7eb2000-a7eb3000 ---p 00000000 00:00 0
 a7eb3000-a7ed5000 rw-p 00000000 00:00 0
 a7ed5000-a8008000 r-xp 00000000 03:00 4222       /lib/libc.so.6
@@ -352,7 +352,6 @@ is not associated with a file:
  [stack]                  = the stack of the main process
  [vdso]                   = the "virtual dynamic shared object",
                             the kernel system call handler
- [threadstack:xxxxxxxx]   = the stack of the thread, xxxxxxxx is the stack size
 
  or if empty, the mapping is anonymous.
 
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index b43bbaebe2c0..1658efdfb4e5 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -534,20 +534,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
         struct kprobe_ctlblk *kcb;
 
         addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
-        if (*addr != BREAKPOINT_INSTRUCTION) {
-                /*
-                 * The breakpoint instruction was removed right
-                 * after we hit it.  Another cpu has removed
-                 * either a probepoint or a debugger breakpoint
-                 * at this address.  In either case, no further
-                 * handling of this interrupt is appropriate.
-                 * Back up over the (now missing) int3 and run
-                 * the original instruction.
-                 */
-                regs->ip = (unsigned long)addr;
-                return 1;
-        }
-
         /*
          * We don't want to be preempted for the entire
          * duration of kprobe processing. We conditionally
@@ -579,6 +565,19 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
                                 setup_singlestep(p, regs, kcb, 0);
                         return 1;
                 }
+        } else if (*addr != BREAKPOINT_INSTRUCTION) {
+                /*
+                 * The breakpoint instruction was removed right
+                 * after we hit it.  Another cpu has removed
+                 * either a probepoint or a debugger breakpoint
+                 * at this address.  In either case, no further
+                 * handling of this interrupt is appropriate.
+                 * Back up over the (now missing) int3 and run
+                 * the original instruction.
+                 */
+                regs->ip = (unsigned long)addr;
+                preempt_enable_no_resched();
+                return 1;
         } else if (kprobe_running()) {
                 p = __get_cpu_var(current_kprobe);
                 if (p->break_handler && p->break_handler(p, regs)) {
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index e2e992599e68..baa76bbf244a 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -475,101 +475,13 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
         },
         {
         .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad X201",
+        .ident = "Lenovo ThinkPad X201[s]",
         .matches = {
                 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
                 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201"),
                 },
         },
         {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad X201",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad T410",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T410"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad T510",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T510"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad W510",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W510"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad X201",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad X201",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad T410",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T410"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad T510",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T510"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad W510",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W510"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad X201",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201"),
-                },
-        },
-        {
-        .callback = init_set_sci_en_on_resume,
-        .ident = "Lenovo ThinkPad X201",
-        .matches = {
-                DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-                DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201s"),
-                },
-        },
-        {
         .callback = init_old_suspend_ordering,
         .ident = "Panasonic CF51-2L",
         .matches = {
diff --git a/drivers/gpio/it8761e_gpio.c b/drivers/gpio/it8761e_gpio.c
index 753219cf993a..41a9388f2fde 100644
--- a/drivers/gpio/it8761e_gpio.c
+++ b/drivers/gpio/it8761e_gpio.c
@@ -80,8 +80,8 @@ static int it8761e_gpio_get(struct gpio_chip *gc, unsigned gpio_num)
         u16 reg;
         u8 bit;
 
-        bit = gpio_num % 7;
-        reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba;
+        bit = gpio_num % 8;
+        reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;
 
         return !!(inb(reg) & (1 << bit));
 }
@@ -91,8 +91,8 @@ static int it8761e_gpio_direction_in(struct gpio_chip *gc, unsigned gpio_num)
         u8 curr_dirs;
         u8 io_reg, bit;
 
-        bit = gpio_num % 7;
-        io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO;
+        bit = gpio_num % 8;
+        io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;
 
         spin_lock(&sio_lock);
 
@@ -116,8 +116,8 @@ static void it8761e_gpio_set(struct gpio_chip *gc,
         u8 curr_vals, bit;
         u16 reg;
 
-        bit = gpio_num % 7;
-        reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba;
+        bit = gpio_num % 8;
+        reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;
 
         spin_lock(&sio_lock);
 
@@ -135,8 +135,8 @@ static int it8761e_gpio_direction_out(struct gpio_chip *gc,
 {
         u8 curr_dirs, io_reg, bit;
 
-        bit = gpio_num % 7;
-        io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO;
+        bit = gpio_num % 8;
+        io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;
 
         it8761e_gpio_set(gc, gpio_num, val);
 
@@ -200,7 +200,7 @@ static int __init it8761e_gpio_init(void)
                 return -EBUSY;
 
         it8761e_gpio_chip.base = -1;
-        it8761e_gpio_chip.ngpio = 14;
+        it8761e_gpio_chip.ngpio = 16;
 
         err = gpiochip_add(&it8761e_gpio_chip);
         if (err < 0)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 2b8b969d0c15..df6a9cd82c4d 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -456,11 +456,15 @@ i915_error_object_create(struct drm_device *dev,
 
         for (page = 0; page < page_count; page++) {
                 void *s, *d = kmalloc(PAGE_SIZE, GFP_ATOMIC);
+                unsigned long flags;
+
                 if (d == NULL)
                         goto unwind;
-                s = kmap_atomic(src_priv->pages[page], KM_USER0);
+                local_irq_save(flags);
+                s = kmap_atomic(src_priv->pages[page], KM_IRQ0);
                 memcpy(d, s, PAGE_SIZE);
-                kunmap_atomic(s, KM_USER0);
+                kunmap_atomic(s, KM_IRQ0);
+                local_irq_restore(flags);
                 dst->pages[page] = d;
         }
         dst->page_count = page_count;
diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index 40ab6d9c3736..cc5316dcf580 100644
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -424,7 +424,7 @@ static __inline__ int radeon_check_and_fixup_packet3(drm_radeon_private_t *
                 if ((*cmd & RADEON_GMC_SRC_PITCH_OFFSET_CNTL) &&
                     (*cmd & RADEON_GMC_DST_PITCH_OFFSET_CNTL)) {
                         u32 *cmd3 = drm_buffer_pointer_to_dword(cmdbuf->buffer, 3);
-                        offset = *cmd << 10;
+                        offset = *cmd3 << 10;
                         if (radeon_check_and_fixup_offset
                             (dev_priv, file_priv, &offset)) {
                                 DRM_ERROR("Invalid second packet offset\n");
@@ -2895,9 +2895,12 @@ static int radeon_cp_cmdbuf(struct drm_device *dev, void *data,
                         return rv;
                 rv = drm_buffer_copy_from_user(cmdbuf->buffer, buffer,
                                                 cmdbuf->bufsz);
-                if (rv)
+                if (rv) {
+                        drm_buffer_free(cmdbuf->buffer);
                         return rv;
-        }
+                }
+        } else
+                goto done;
 
         orig_nbox = cmdbuf->nbox;
 
@@ -2905,8 +2908,7 @@ static int radeon_cp_cmdbuf(struct drm_device *dev, void *data,
                 int temp;
                 temp = r300_do_cp_cmdbuf(dev, file_priv, cmdbuf);
 
-                if (cmdbuf->bufsz != 0)
-                        drm_buffer_free(cmdbuf->buffer);
+                drm_buffer_free(cmdbuf->buffer);
 
                 return temp;
         }
@@ -3012,16 +3014,15 @@ static int radeon_cp_cmdbuf(struct drm_device *dev, void *data,
                 }
         }
 
-        if (cmdbuf->bufsz != 0)
-                drm_buffer_free(cmdbuf->buffer);
+        drm_buffer_free(cmdbuf->buffer);
 
+      done:
         DRM_DEBUG("DONE\n");
         COMMIT_RING();
         return 0;
 
       err:
-        if (cmdbuf->bufsz != 0)
-                drm_buffer_free(cmdbuf->buffer);
+        drm_buffer_free(cmdbuf->buffer);
         return -EINVAL;
 }
 
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index c8ab50516672..7580f55e67e3 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -328,8 +328,8 @@ static int lis3lv02d_remove(struct acpi_device *device, int type)
         lis3lv02d_joystick_disable();
         lis3lv02d_poweroff(&lis3_dev);
 
-        flush_work(&hpled_led.work);
         led_classdev_unregister(&hpled_led.led_classdev);
+        flush_work(&hpled_led.work);
 
         return lis3lv02d_remove_fs(&lis3_dev);
 }
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 88be37d9e9a5..fb279f4ed8b3 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -266,7 +266,7 @@ static int atmci_req_show(struct seq_file *s, void *v)
                                 "CMD%u(0x%x) flg %x rsp %x %x %x %x err %d\n",
                                 cmd->opcode, cmd->arg, cmd->flags,
                                 cmd->resp[0], cmd->resp[1], cmd->resp[2],
-                                cmd->resp[2], cmd->error);
+                                cmd->resp[3], cmd->error);
                 if (data)
                         seq_printf(s, "DATA %u / %u * %u flg %x err %d\n",
                                 data->bytes_xfered, data->blocks,
@@ -276,7 +276,7 @@ static int atmci_req_show(struct seq_file *s, void *v)
                                 "CMD%u(0x%x) flg %x rsp %x %x %x %x err %d\n",
                                 stop->opcode, stop->arg, stop->flags,
                                 stop->resp[0], stop->resp[1], stop->resp[2],
-                                stop->resp[2], stop->error);
+                                stop->resp[3], stop->error);
         }
 
         spin_unlock_bh(&slot->host->lock);
@@ -569,9 +569,10 @@ static void atmci_dma_cleanup(struct atmel_mci *host)
 {
         struct mmc_data                 *data = host->data;
 
-        dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len,
-                     ((data->flags & MMC_DATA_WRITE)
-                      ? DMA_TO_DEVICE : DMA_FROM_DEVICE));
+        if (data)
+                dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len,
+                             ((data->flags & MMC_DATA_WRITE)
+                              ? DMA_TO_DEVICE : DMA_FROM_DEVICE));
 }
 
 static void atmci_stop_dma(struct atmel_mci *host)
@@ -1099,8 +1100,8 @@ static void atmci_command_complete(struct atmel_mci *host,
                         "command error: status=0x%08x\n", status);
 
                 if (cmd->data) {
-                        host->data = NULL;
                         atmci_stop_dma(host);
+                        host->data = NULL;
                         mci_writel(host, IDR, MCI_NOTBUSY
                                         | MCI_TXRDY | MCI_RXRDY
                                         | ATMCI_DATA_ERROR_FLAGS);
@@ -1293,6 +1294,7 @@ static void atmci_tasklet_func(unsigned long priv)
                         } else {
                                 data->bytes_xfered = data->blocks * data->blksz;
                                 data->error = 0;
+                                mci_writel(host, IDR, ATMCI_DATA_ERROR_FLAGS);
                         }
 
                         if (!data->stop) {
@@ -1751,13 +1753,13 @@ static int __init atmci_probe(struct platform_device *pdev)
         ret = -ENODEV;
         if (pdata->slot[0].bus_width) {
                 ret = atmci_init_slot(host, &pdata->slot[0],
-                                MCI_SDCSEL_SLOT_A, 0);
+                                0, MCI_SDCSEL_SLOT_A);
                 if (!ret)
                         nr_slots++;
         }
         if (pdata->slot[1].bus_width) {
                 ret = atmci_init_slot(host, &pdata->slot[1],
-                                MCI_SDCSEL_SLOT_B, 1);
+                                1, MCI_SDCSEL_SLOT_B);
                 if (!ret)
                         nr_slots++;
         }
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 4e97ca182997..5d3763fb3472 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -1649,6 +1649,7 @@ static void free_skb_resources(struct gfar_private *priv)
                         sizeof(struct rxbd8) * priv->total_rx_ring_size,
                         priv->tx_queue[0]->tx_bd_base,
                         priv->tx_queue[0]->tx_bd_dma_base);
+        skb_queue_purge(&priv->rx_recycle);
 }
 
 void gfar_start(struct net_device *dev)
@@ -2088,7 +2089,6 @@ static int gfar_close(struct net_device *dev)
 
         disable_napi(priv);
 
-        skb_queue_purge(&priv->rx_recycle);
         cancel_work_sync(&priv->reset_task);
         stop_gfar(dev);
 
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 0cd80e4d71d9..e67691dca4ab 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -32,6 +32,7 @@ static int kszphy_config_init(struct phy_device *phydev)
 
 static struct phy_driver ks8001_driver = {
         .phy_id         = PHY_ID_KS8001,
+        .name           = "Micrel KS8001",
         .phy_id_mask    = 0x00fffff0,
         .features       = PHY_BASIC_FEATURES,
         .flags          = PHY_POLL,
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index f9f0730b53d5..5ec542dd5b50 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -187,7 +187,6 @@ tx_drop:
         return NETDEV_TX_OK;
 
 rx_drop:
-        kfree_skb(skb);
         rcv_stats->rx_dropped++;
         return NETDEV_TX_OK;
 }
diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c
index 99a6da464bd3..e1c2fcaa8bed 100644
--- a/drivers/net/wireless/ath/ar9170/usb.c
+++ b/drivers/net/wireless/ath/ar9170/usb.c
@@ -727,12 +727,16 @@ static void ar9170_usb_firmware_failed(struct ar9170_usb *aru)
 {
         struct device *parent = aru->udev->dev.parent;
 
+        complete(&aru->firmware_loading_complete);
+
         /* unbind anything failed */
         if (parent)
                 down(&parent->sem);
         device_release_driver(&aru->udev->dev);
         if (parent)
                 up(&parent->sem);
+
+        usb_put_dev(aru->udev);
 }
 
 static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)
@@ -761,6 +765,8 @@ static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)
         if (err)
                 goto err_unrx;
 
+        complete(&aru->firmware_loading_complete);
+        usb_put_dev(aru->udev);
         return;
 
  err_unrx:
@@ -858,6 +864,7 @@ static int ar9170_usb_probe(struct usb_interface *intf,
         init_usb_anchor(&aru->tx_pending);
         init_usb_anchor(&aru->tx_submitted);
         init_completion(&aru->cmd_wait);
+        init_completion(&aru->firmware_loading_complete);
         spin_lock_init(&aru->tx_urb_lock);
 
         aru->tx_pending_urbs = 0;
@@ -877,6 +884,7 @@ static int ar9170_usb_probe(struct usb_interface *intf,
         if (err)
                 goto err_freehw;
 
+        usb_get_dev(aru->udev);
         return request_firmware_nowait(THIS_MODULE, 1, "ar9170.fw",
                                        &aru->udev->dev, GFP_KERNEL, aru,
                                        ar9170_usb_firmware_step2);
@@ -896,6 +904,9 @@ static void ar9170_usb_disconnect(struct usb_interface *intf)
                 return;
 
         aru->common.state = AR9170_IDLE;
+
+        wait_for_completion(&aru->firmware_loading_complete);
+
         ar9170_unregister(&aru->common);
         ar9170_usb_cancel_urbs(aru);
 
diff --git a/drivers/net/wireless/ath/ar9170/usb.h b/drivers/net/wireless/ath/ar9170/usb.h
index a2ce3b169ceb..919b06046eb3 100644
--- a/drivers/net/wireless/ath/ar9170/usb.h
+++ b/drivers/net/wireless/ath/ar9170/usb.h
@@ -71,6 +71,7 @@ struct ar9170_usb {
         unsigned int tx_pending_urbs;
 
         struct completion cmd_wait;
+        struct completion firmware_loading_complete;
         int readlen;
         u8 *readbuf;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 6383d9f8c9b3..f4e59ae07f8e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -2621,7 +2621,9 @@ struct iwl_ssid_ie {
 #define PROBE_OPTION_MAX_3945           4
 #define PROBE_OPTION_MAX                20
 #define TX_CMD_LIFE_TIME_INFINITE       cpu_to_le32(0xFFFFFFFF)
-#define IWL_GOOD_CRC_TH                 cpu_to_le16(1)
+#define IWL_GOOD_CRC_TH_DISABLED        0
+#define IWL_GOOD_CRC_TH_DEFAULT         cpu_to_le16(1)
+#define IWL_GOOD_CRC_TH_NEVER           cpu_to_le16(0xffff)
 #define IWL_MAX_SCAN_SIZE 1024
 #define IWL_MAX_CMD_SIZE 4096
 #define IWL_MAX_PROBE_REQUEST           200
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 12e455a4b90e..741e65ec8301 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -813,16 +813,29 @@ static void iwl_bg_request_scan(struct work_struct *data)
                         rate = IWL_RATE_1M_PLCP;
                         rate_flags = RATE_MCS_CCK_MSK;
                 }
-                scan->good_CRC_th = 0;
+                scan->good_CRC_th = IWL_GOOD_CRC_TH_DISABLED;
         } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
                 band = IEEE80211_BAND_5GHZ;
                 rate = IWL_RATE_6M_PLCP;
                 /*
-                 * If active scaning is requested but a certain channel
-                 * is marked passive, we can do active scanning if we
-                 * detect transmissions.
+                 * If active scanning is requested but a certain channel is
+                 * marked passive, we can do active scanning if we detect
+                 * transmissions.
+                 *
+                 * There is an issue with some firmware versions that triggers
+                 * a sysassert on a "good CRC threshold" of zero (== disabled),
+                 * on a radar channel even though this means that we should NOT
+                 * send probes.
+                 *
+                 * The "good CRC threshold" is the number of frames that we
+                 * need to receive during our dwell time on a channel before
+                 * sending out probes -- setting this to a huge value will
+                 * mean we never reach it, but at the same time work around
+                 * the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER
+                 * here instead of IWL_GOOD_CRC_TH_DISABLED.
                  */
-                scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0;
+                scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
+                                                IWL_GOOD_CRC_TH_NEVER;
 
                 /* Force use of chains B and C (0x6) for scan Rx for 4965
                  * Avoid A (0x1) because of its off-channel reception on A-band.
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index b55e4f39a9e1..b74a56c48d26 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -2967,7 +2967,8 @@ static void iwl3945_bg_request_scan(struct work_struct *data)
                  * is marked passive, we can do active scanning if we
                  * detect transmissions.
                  */
-                scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0;
+                scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
+                                                IWL_GOOD_CRC_TH_DISABLED;
                 band = IEEE80211_BAND_5GHZ;
         } else {
                 IWL_WARN(priv, "Invalid scan band count\n");
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index 44e49c28b2a7..c2ec3dcd4e91 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -488,9 +488,9 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
         fbinfo->fbops = &bfin_t350mcqb_fb_ops;
         fbinfo->flags = FBINFO_FLAG_DEFAULT;
 
-        info->fb_buffer =
-            dma_alloc_coherent(NULL, fbinfo->fix.smem_len, &info->dma_handle,
-                               GFP_KERNEL);
+        info->fb_buffer = dma_alloc_coherent(NULL, fbinfo->fix.smem_len +
+                                ACTIVE_VIDEO_MEM_OFFSET,
+                                &info->dma_handle, GFP_KERNEL);
 
         if (NULL == info->fb_buffer) {
                 printk(KERN_ERR DRIVER_NAME
@@ -568,8 +568,8 @@ out7:
 out6:
         fb_dealloc_cmap(&fbinfo->cmap);
 out4:
-        dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
-                          info->dma_handle);
+        dma_free_coherent(NULL, fbinfo->fix.smem_len + ACTIVE_VIDEO_MEM_OFFSET,
+                         info->fb_buffer, info->dma_handle);
 out3:
         framebuffer_release(fbinfo);
 out2:
@@ -592,8 +592,9 @@ static int __devexit bfin_t350mcqb_remove(struct platform_device *pdev)
         free_irq(info->irq, info);
 
         if (info->fb_buffer != NULL)
-                dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
-                                  info->dma_handle);
+                dma_free_coherent(NULL, fbinfo->fix.smem_len +
+                        ACTIVE_VIDEO_MEM_OFFSET, info->fb_buffer,
+                        info->dma_handle);
 
         fb_dealloc_cmap(&fbinfo->cmap);
 
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index f7c255f9c624..a8cd821226da 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -34,6 +34,7 @@ struct cachefiles_object {
         loff_t                          i_size;         /* object size */
         unsigned long                   flags;
 #define CACHEFILES_OBJECT_ACTIVE        0               /* T if marked active */
+#define CACHEFILES_OBJECT_BURIED        1               /* T if preemptively buried */
         atomic_t                        usage;          /* object usage count */
         uint8_t                         type;           /* object type */
         uint8_t                         new;            /* T if object new */
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index d5db84a1ee0d..f4a7840bf42c 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -93,6 +93,59 @@ static noinline void cachefiles_printk_object(struct cachefiles_object *object,
 }
 
 /*
+ * mark the owner of a dentry, if there is one, to indicate that that dentry
+ * has been preemptively deleted
+ * - the caller must hold the i_mutex on the dentry's parent as required to
+ *   call vfs_unlink(), vfs_rmdir() or vfs_rename()
+ */
+static void cachefiles_mark_object_buried(struct cachefiles_cache *cache,
+                                          struct dentry *dentry)
+{
+        struct cachefiles_object *object;
+        struct rb_node *p;
+
+        _enter(",'%*.*s'",
+               dentry->d_name.len, dentry->d_name.len, dentry->d_name.name);
+
+        write_lock(&cache->active_lock);
+
+        p = cache->active_nodes.rb_node;
+        while (p) {
+                object = rb_entry(p, struct cachefiles_object, active_node);
+                if (object->dentry > dentry)
+                        p = p->rb_left;
+                else if (object->dentry < dentry)
+                        p = p->rb_right;
+                else
+                        goto found_dentry;
+        }
+
+        write_unlock(&cache->active_lock);
+        _leave(" [no owner]");
+        return;
+
+        /* found the dentry for  */
+found_dentry:
+        kdebug("preemptive burial: OBJ%x [%s] %p",
+               object->fscache.debug_id,
+               fscache_object_states[object->fscache.state],
+               dentry);
+
+        if (object->fscache.state < FSCACHE_OBJECT_DYING) {
+                printk(KERN_ERR "\n");
+                printk(KERN_ERR "CacheFiles: Error:"
+                       " Can't preemptively bury live object\n");
+                cachefiles_printk_object(object, NULL);
+        } else if (test_and_set_bit(CACHEFILES_OBJECT_BURIED, &object->flags)) {
+                printk(KERN_ERR "CacheFiles: Error:"
+                       " Object already preemptively buried\n");
+        }
+
+        write_unlock(&cache->active_lock);
+        _leave(" [owner marked]");
+}
+
+/*
  * record the fact that an object is now active
  */
 static int cachefiles_mark_object_active(struct cachefiles_cache *cache,
@@ -219,7 +272,8 @@ requeue:
  */
 static int cachefiles_bury_object(struct cachefiles_cache *cache,
                                   struct dentry *dir,
-                                  struct dentry *rep)
+                                  struct dentry *rep,
+                                  bool preemptive)
 {
         struct dentry *grave, *trap;
         char nbuffer[8 + 8 + 1];
@@ -229,11 +283,16 @@ static int cachefiles_bury_object(struct cachefiles_cache *cache,
                dir->d_name.len, dir->d_name.len, dir->d_name.name,
                rep->d_name.len, rep->d_name.len, rep->d_name.name);
 
+        _debug("remove %p from %p", rep, dir);
+
         /* non-directories can just be unlinked */
         if (!S_ISDIR(rep->d_inode->i_mode)) {
                 _debug("unlink stale object");
                 ret = vfs_unlink(dir->d_inode, rep);
 
+                if (preemptive)
+                        cachefiles_mark_object_buried(cache, rep);
+
                 mutex_unlock(&dir->d_inode->i_mutex);
 
                 if (ret == -EIO)
@@ -325,6 +384,9 @@ try_again:
         if (ret != 0 && ret != -ENOMEM)
                 cachefiles_io_error(cache, "Rename failed with error %d", ret);
 
+        if (preemptive)
+                cachefiles_mark_object_buried(cache, rep);
+
         unlock_rename(cache->graveyard, dir);
         dput(grave);
         _leave(" = 0");
@@ -340,7 +402,7 @@ int cachefiles_delete_object(struct cachefiles_cache *cache,
         struct dentry *dir;
         int ret;
 
-        _enter(",{%p}", object->dentry);
+        _enter(",OBJ%x{%p}", object->fscache.debug_id, object->dentry);
 
         ASSERT(object->dentry);
         ASSERT(object->dentry->d_inode);
@@ -350,15 +412,25 @@ int cachefiles_delete_object(struct cachefiles_cache *cache,
 
         mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
 
-        /* we need to check that our parent is _still_ our parent - it may have
-         * been renamed */
-        if (dir == object->dentry->d_parent) {
-                ret = cachefiles_bury_object(cache, dir, object->dentry);
-        } else {
-                /* it got moved, presumably by cachefilesd culling it, so it's
-                 * no longer in the key path and we can ignore it */
+        if (test_bit(CACHEFILES_OBJECT_BURIED, &object->flags)) {
+                /* object allocation for the same key preemptively deleted this
+                 * object's file so that it could create its own file */
+                _debug("object preemptively buried");
                 mutex_unlock(&dir->d_inode->i_mutex);
                 ret = 0;
+        } else {
+                /* we need to check that our parent is _still_ our parent - it
+                 * may have been renamed */
+                if (dir == object->dentry->d_parent) {
+                        ret = cachefiles_bury_object(cache, dir,
+                                                     object->dentry, false);
+                } else {
+                        /* it got moved, presumably by cachefilesd culling it,
+                         * so it's no longer in the key path and we can ignore
+                         * it */
+                        mutex_unlock(&dir->d_inode->i_mutex);
+                        ret = 0;
+                }
         }
 
         dput(dir);
@@ -381,7 +453,9 @@ int cachefiles_walk_to_object(struct cachefiles_object *parent,
         const char *name;
         int ret, nlen;
 
-        _enter("{%p},,%s,", parent->dentry, key);
+        _enter("OBJ%x{%p},OBJ%x,%s,",
+               parent->fscache.debug_id, parent->dentry,
+               object->fscache.debug_id, key);
 
         cache = container_of(parent->fscache.cache,
                              struct cachefiles_cache, cache);
@@ -509,7 +583,7 @@ lookup_again:
                          * mutex) */
                         object->dentry = NULL;
 
-                        ret = cachefiles_bury_object(cache, dir, next);
+                        ret = cachefiles_bury_object(cache, dir, next, true);
                         dput(next);
                         next = NULL;
 
@@ -828,7 +902,7 @@ int cachefiles_cull(struct cachefiles_cache *cache, struct dentry *dir,
         /*  actually remove the victim (drops the dir mutex) */
         _debug("bury");
 
-        ret = cachefiles_bury_object(cache, dir, victim);
+        ret = cachefiles_bury_object(cache, dir, victim, false);
         if (ret < 0)
                 goto error;
 
diff --git a/fs/compat.c b/fs/compat.c
index 4b6ed03cc478..05448730f840 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1531,8 +1531,6 @@ int compat_do_execve(char * filename,
         if (retval < 0)
                 goto out;
 
-        current->stack_start = current->mm->start_stack;
-
         /* execve succeeded */
         current->fs->in_exec = 0;
         current->in_execve = 0;
diff --git a/fs/exec.c b/fs/exec.c
index 49cdaa19e5b9..e6e94c626c2c 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1387,8 +1387,6 @@ int do_execve(char * filename,
         if (retval < 0)
                 goto out;
 
-        current->stack_start = current->mm->start_stack;
-
         /* execve succeeded */
         current->fs->in_exec = 0;
         current->in_execve = 0;
diff --git a/fs/proc/array.c b/fs/proc/array.c
index e51f2ec2c5e5..885ab5513ac5 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -81,7 +81,6 @@
 #include <linux/pid_namespace.h>
 #include <linux/ptrace.h>
 #include <linux/tracehook.h>
-#include <linux/swapops.h>
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -495,7 +494,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
                 rsslim,
                 mm ? mm->start_code : 0,
                 mm ? mm->end_code : 0,
-                (permitted && mm) ? task->stack_start : 0,
+                (permitted && mm) ? mm->start_stack : 0,
                 esp,
                 eip,
                 /* The signal information here is obsolete.
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 070553427dd5..47f5b145f56e 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -247,25 +247,6 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
                                 } else if (vma->vm_start <= mm->start_stack &&
                                            vma->vm_end >= mm->start_stack) {
                                         name = "[stack]";
-                                } else {
-                                        unsigned long stack_start;
-                                        struct proc_maps_private *pmp;
-
-                                        pmp = m->private;
-                                        stack_start = pmp->task->stack_start;
-
-                                        if (vma->vm_start <= stack_start &&
-                                            vma->vm_end >= stack_start) {
-                                                pad_len_spaces(m, len);
-                                                seq_printf(m,
-                                                 "[threadstack:%08lx]",
-#ifdef CONFIG_STACK_GROWSUP
-                                                 vma->vm_end - stack_start
-#else
-                                                 stack_start - vma->vm_start
-#endif
-                                                );
-                                        }
                                 }
                         } else {
                                 name = "[vdso]";
diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h
index e694263445f7..69206957b72c 100644
--- a/include/asm-generic/dma-mapping-common.h
+++ b/include/asm-generic/dma-mapping-common.h
@@ -131,7 +131,7 @@ static inline void dma_sync_single_range_for_cpu(struct device *dev,
                 debug_dma_sync_single_range_for_cpu(dev, addr, offset, size, dir);
 
         } else
-                dma_sync_single_for_cpu(dev, addr, size, dir);
+                dma_sync_single_for_cpu(dev, addr + offset, size, dir);
 }
 
 static inline void dma_sync_single_range_for_device(struct device *dev,
@@ -148,7 +148,7 @@ static inline void dma_sync_single_range_for_device(struct device *dev,
                 debug_dma_sync_single_range_for_device(dev, addr, offset, size, dir);
 
         } else
-                dma_sync_single_for_device(dev, addr, size, dir);
+                dma_sync_single_for_device(dev, addr + offset, size, dir);
 }
 
 static inline void
diff --git a/include/linux/sched.h b/include/linux/sched.h
index dad7f668ebf7..2b7b81df78b3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1497,7 +1497,6 @@ struct task_struct {
         /* bitmask of trace recursion */
         unsigned long trace_recursion;
 #endif /* CONFIG_TRACING */
-        unsigned long stack_start;
 #ifdef CONFIG_CGROUP_MEM_RES_CTLR /* memcg uses this to do batch job */
         struct memcg_batch_info {
                 int do_batch;   /* incremented when batch uncharge started */
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 851c813adb3a..61d73e37d543 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -279,6 +279,7 @@ int sctp_do_sm(sctp_event_t event_type, sctp_subtype_t subtype,
 /* 2nd level prototypes */
 void sctp_generate_t3_rtx_event(unsigned long peer);
 void sctp_generate_heartbeat_event(unsigned long peer);
+void sctp_generate_proto_unreach_event(unsigned long peer);
 
 void sctp_ootb_pkt_free(struct sctp_packet *);
 
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 597f8e27aaf6..219043a67bf7 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1010,6 +1010,9 @@ struct sctp_transport {
         /* Heartbeat timer is per destination. */
         struct timer_list hb_timer;
 
+        /* Timer to handle ICMP proto unreachable envets */
+        struct timer_list proto_unreach_timer;
+
         /* Since we're using per-destination retransmission timers
          * (see above), we're also using per-destination "transmitted"
          * queues.  This probably ought to be a private struct
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 722b0130aa94..59a009dc54a8 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -158,7 +158,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
                             u->mq_bytes + mq_bytes >
                             task_rlimit(p, RLIMIT_MSGQUEUE)) {
                                 spin_unlock(&mq_lock);
-                                kfree(info->messages);
+                                /* mqueue_delete_inode() releases info->messages */
                                 goto out_inode;
                         }
                         u->mq_bytes += mq_bytes;
diff --git a/kernel/acct.c b/kernel/acct.c
index 24f8c81fc48d..e4c0e1fee9b0 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -353,17 +353,18 @@ restart:
 
 void acct_exit_ns(struct pid_namespace *ns)
 {
-        struct bsd_acct_struct *acct;
+        struct bsd_acct_struct *acct = ns->bacct;
 
-        spin_lock(&acct_lock);
-        acct = ns->bacct;
-        if (acct != NULL) {
-                if (acct->file != NULL)
-                        acct_file_reopen(acct, NULL, NULL);
+        if (acct == NULL)
+                return;
 
-                kfree(acct);
-        }
+        del_timer_sync(&acct->timer);
+        spin_lock(&acct_lock);
+        if (acct->file != NULL)
+                acct_file_reopen(acct, NULL, NULL);
         spin_unlock(&acct_lock);
+
+        kfree(acct);
 }
 
 /*
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 3a53c771e503..6d870f2d1228 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4435,7 +4435,15 @@ __setup("cgroup_disable=", cgroup_disable);
  */
 unsigned short css_id(struct cgroup_subsys_state *css)
 {
-        struct css_id *cssid = rcu_dereference(css->id);
+        struct css_id *cssid;
+
+        /*
+         * This css_id() can return correct value when somone has refcnt
+         * on this or this is under rcu_read_lock(). Once css->id is allocated,
+         * it's unchanged until freed.
+         */
+        cssid = rcu_dereference_check(css->id,
+                        rcu_read_lock_held() || atomic_read(&css->refcnt));
 
         if (cssid)
                 return cssid->id;
@@ -4445,7 +4453,10 @@ EXPORT_SYMBOL_GPL(css_id);
 
 unsigned short css_depth(struct cgroup_subsys_state *css)
 {
-        struct css_id *cssid = rcu_dereference(css->id);
+        struct css_id *cssid;
+
+        cssid = rcu_dereference_check(css->id,
+                        rcu_read_lock_held() || atomic_read(&css->refcnt));
 
         if (cssid)
                 return cssid->depth;
@@ -4453,15 +4464,36 @@ unsigned short css_depth(struct cgroup_subsys_state *css)
 }
 EXPORT_SYMBOL_GPL(css_depth);
 
+/**
+ *  css_is_ancestor - test "root" css is an ancestor of "child"
+ * @child: the css to be tested.
+ * @root: the css supporsed to be an ancestor of the child.
+ *
+ * Returns true if "root" is an ancestor of "child" in its hierarchy. Because
+ * this function reads css->id, this use rcu_dereference() and rcu_read_lock().
+ * But, considering usual usage, the csses should be valid objects after test.
+ * Assuming that the caller will do some action to the child if this returns
+ * returns true, the caller must take "child";s reference count.
+ * If "child" is valid object and this returns true, "root" is valid, too.
+ */
+
 bool css_is_ancestor(struct cgroup_subsys_state *child,
                     const struct cgroup_subsys_state *root)
 {
-        struct css_id *child_id = rcu_dereference(child->id);
-        struct css_id *root_id = rcu_dereference(root->id);
+        struct css_id *child_id;
+        struct css_id *root_id;
+        bool ret = true;
 
-        if (!child_id || !root_id || (child_id->depth < root_id->depth))
-                return false;
-        return child_id->stack[root_id->depth] == root_id->id;
+        rcu_read_lock();
+        child_id  = rcu_dereference(child->id);
+        root_id = rcu_dereference(root->id);
+        if (!child_id
+            || !root_id
+            || (child_id->depth < root_id->depth)
+            || (child_id->stack[root_id->depth] != root_id->id))
+                ret = false;
+        rcu_read_unlock();
+        return ret;
 }
 
 static void __free_css_id_cb(struct rcu_head *head)
diff --git a/kernel/fork.c b/kernel/fork.c
index 44b0791b0a2e..4c14942a0ee3 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1114,8 +1114,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 
         p->bts = NULL;
 
-        p->stack_start = stack_start;
-
         /* Perform scheduler related setup. Assign this task to a CPU. */
         sched_fork(p, clone_flags);
 
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 87ebe8adc474..474a84715eac 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1134,11 +1134,9 @@ int crash_shrink_memory(unsigned long new_size)
 
         free_reserved_phys_range(end, crashk_res.end);
 
-        if (start == end) {
-                crashk_res.end = end;
+        if (start == end)
                 release_resource(&crashk_res);
-        } else
-                crashk_res.end = end - 1;
+        crashk_res.end = end - 1;
 
 unlock:
         mutex_unlock(&kexec_mutex);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ffbdfc86aedf..4c9e6bbf3772 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1039,7 +1039,7 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
                 page = alloc_buddy_huge_page(h, vma, addr);
                 if (!page) {
                         hugetlb_put_quota(inode->i_mapping, chg);
-                        return ERR_PTR(-VM_FAULT_OOM);
+                        return ERR_PTR(-VM_FAULT_SIGBUS);
                 }
         }
 
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 0f711c213d2e..8a79a6f0f029 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -811,12 +811,10 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem)
          * enabled in "curr" and "curr" is a child of "mem" in *cgroup*
          * hierarchy(even if use_hierarchy is disabled in "mem").
          */
-        rcu_read_lock();
         if (mem->use_hierarchy)
                 ret = css_is_ancestor(&curr->css, &mem->css);
         else
                 ret = (curr == mem);
-        rcu_read_unlock();
         css_put(&curr->css);
         return ret;
 }
@@ -1603,7 +1601,6 @@ static int __mem_cgroup_try_charge(struct mm_struct *mm,
                          * There is a small race that "from" or "to" can be
                          * freed by rmdir, so we use css_tryget().
                          */
-                        rcu_read_lock();
                         from = mc.from;
                         to = mc.to;
                         if (from && css_tryget(&from->css)) {
@@ -1624,7 +1621,6 @@ static int __mem_cgroup_try_charge(struct mm_struct *mm,
                                         do_continue = (to == mem_over_limit);
                                 css_put(&to->css);
                         }
-                        rcu_read_unlock();
                         if (do_continue) {
                                 DEFINE_WAIT(wait);
                                 prepare_to_wait(&mc.waitq, &wait,
@@ -2314,9 +2310,7 @@ mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout)
 
         /* record memcg information */
         if (do_swap_account && swapout && memcg) {
-                rcu_read_lock();
                 swap_cgroup_record(ent, css_id(&memcg->css));
-                rcu_read_unlock();
                 mem_cgroup_get(memcg);
         }
         if (swapout && memcg)
@@ -2373,10 +2367,8 @@ static int mem_cgroup_move_swap_account(swp_entry_t entry,
 {
         unsigned short old_id, new_id;
 
-        rcu_read_lock();
         old_id = css_id(&from->css);
         new_id = css_id(&to->css);
-        rcu_read_unlock();
 
         if (swap_cgroup_cmpxchg(entry, old_id, new_id) == old_id) {
                 mem_cgroup_swap_statistics(from, false);
@@ -4044,16 +4036,11 @@ static int is_target_pte_for_mc(struct vm_area_struct *vma,
                         put_page(page);
         }
         /* throught */
-        if (ent.val && do_swap_account && !ret) {
-                unsigned short id;
-                rcu_read_lock();
-                id = css_id(&mc.from->css);
-                rcu_read_unlock();
-                if (id == lookup_swap_cgroup(ent)) {
-                        ret = MC_TARGET_SWAP;
-                        if (target)
-                                target->ent = ent;
-                }
+        if (ent.val && do_swap_account && !ret &&
+                        css_id(&mc.from->css) == lookup_swap_cgroup(ent)) {
+                ret = MC_TARGET_SWAP;
+                if (target)
+                        target->ent = ent;
         }
         return ret;
 }
diff --git a/mm/rmap.c b/mm/rmap.c
index 07fc94758799..0feeef860a8f 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -336,14 +336,13 @@ vma_address(struct page *page, struct vm_area_struct *vma)
 
 /*
  * At what user virtual address is page expected in vma?
- * checking that the page matches the vma.
+ * Caller should check the page is actually part of the vma.
  */
 unsigned long page_address_in_vma(struct page *page, struct vm_area_struct *vma)
 {
-        if (PageAnon(page)) {
-                if (vma->anon_vma != page_anon_vma(page))
-                        return -EFAULT;
-        } else if (page->mapping && !(vma->vm_flags & VM_NONLINEAR)) {
+        if (PageAnon(page))
+                ;
+        else if (page->mapping && !(vma->vm_flags & VM_NONLINEAR)) {
                 if (!vma->vm_file ||
                     vma->vm_file->f_mapping != page->mapping)
                         return -EFAULT;
diff --git a/net/core/dev.c b/net/core/dev.c
index f769098774b7..264137fce3a2 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1451,7 +1451,7 @@ static inline void net_timestamp(struct sk_buff *skb)
  *
  * return values:
  *      NET_RX_SUCCESS  (no congestion)
- *      NET_RX_DROP     (packet was dropped)
+ *      NET_RX_DROP     (packet was dropped, but freed)
  *
  * dev_forward_skb can be used for injecting an skb from the
  * start_xmit function of one device into the receive queue
@@ -1465,12 +1465,11 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 {
         skb_orphan(skb);
 
-        if (!(dev->flags & IFF_UP))
-                return NET_RX_DROP;
-
-        if (skb->len > (dev->mtu + dev->hard_header_len))
+        if (!(dev->flags & IFF_UP) ||
+            (skb->len > (dev->mtu + dev->hard_header_len))) {
+                kfree_skb(skb);
                 return NET_RX_DROP;
-
+        }
         skb_set_dev(skb, dev);
         skb->tstamp.tv64 = 0;
         skb->pkt_type = PACKET_HOST;
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 6e747065c202..80769f1f9fab 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -661,13 +661,13 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
 #endif
 #endif
 
-#ifdef CONFIG_FDDI
+#if defined(CONFIG_FDDI) || defined(CONFIG_FDDI_MODULE)
         case ARPHRD_FDDI:
                 arp->ar_hrd = htons(ARPHRD_ETHER);
                 arp->ar_pro = htons(ETH_P_IP);
                 break;
 #endif
-#ifdef CONFIG_TR
+#if defined(CONFIG_TR) || defined(CONFIG_TR_MODULE)
         case ARPHRD_IEEE802_TR:
                 arp->ar_hrd = htons(ARPHRD_IEEE802);
                 arp->ar_pro = htons(ETH_P_IP);
@@ -1051,7 +1051,7 @@ static int arp_req_set(struct net *net, struct arpreq *r,
                         return -EINVAL;
         }
         switch (dev->type) {
-#ifdef CONFIG_FDDI
+#if defined(CONFIG_FDDI) || defined(CONFIG_FDDI_MODULE)
         case ARPHRD_FDDI:
                 /*
                  * According to RFC 1390, FDDI devices should accept ARP
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 9d4f6d1340a4..ec19a890c9a0 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -754,7 +754,8 @@ ipmr_cache_unresolved(struct net *net, vifi_t vifi, struct sk_buff *skb)
                 c->next = mfc_unres_queue;
                 mfc_unres_queue = c;
 
-                mod_timer(&ipmr_expire_timer, c->mfc_un.unres.expires);
+                if (atomic_read(&net->ipv4.cache_resolve_queue_len) == 1)
+                        mod_timer(&ipmr_expire_timer, c->mfc_un.unres.expires);
         }
 
         /*
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 8fef859db35d..c36522a0f113 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1527,6 +1527,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 
         uh   = udp_hdr(skb);
         ulen = ntohs(uh->len);
+        saddr = ip_hdr(skb)->saddr;
+        daddr = ip_hdr(skb)->daddr;
+
         if (ulen > skb->len)
                 goto short_packet;
 
@@ -1540,9 +1543,6 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
         if (udp4_csum_init(skb, uh, proto))
                 goto csum_error;
 
-        saddr = ip_hdr(skb)->saddr;
-        daddr = ip_hdr(skb)->daddr;
-
         if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
                 return __udp4_lib_mcast_deliver(net, skb, uh,
                                 saddr, daddr, udptable);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 622dc7939a1b..61573885e451 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -222,6 +222,8 @@ void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
         if (!skb)
                 return;
 
+        skb->protocol = htons(ETH_P_IPV6);
+
         serr = SKB_EXT_ERR(skb);
         serr->ee.ee_errno = err;
         serr->ee.ee_origin = SO_EE_ORIGIN_ICMP6;
@@ -255,6 +257,8 @@ void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info)
         if (!skb)
                 return;
 
+        skb->protocol = htons(ETH_P_IPV6);
+
         skb_put(skb, sizeof(struct ipv6hdr));
         skb_reset_network_header(skb);
         iph = ipv6_hdr(skb);
@@ -319,7 +323,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
                 sin->sin6_flowinfo = 0;
                 sin->sin6_port = serr->port;
                 sin->sin6_scope_id = 0;
-                if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6) {
+                if (skb->protocol == htons(ETH_P_IPV6)) {
                         ipv6_addr_copy(&sin->sin6_addr,
                                   (struct in6_addr *)(nh + serr->addr_offset));
                         if (np->sndflow)
@@ -341,7 +345,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
                 sin->sin6_family = AF_INET6;
                 sin->sin6_flowinfo = 0;
                 sin->sin6_scope_id = 0;
-                if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6) {
+                if (skb->protocol == htons(ETH_P_IPV6)) {
                         ipv6_addr_copy(&sin->sin6_addr, &ipv6_hdr(skb)->saddr);
                         if (np->rxopt.all)
                                 datagram_recv_ctl(sk, msg, skb);
diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c
index a432f0ec051c..94e7fca75b85 100644
--- a/net/llc/llc_sap.c
+++ b/net/llc/llc_sap.c
@@ -31,7 +31,7 @@ static int llc_mac_header_len(unsigned short devtype)
         case ARPHRD_ETHER:
         case ARPHRD_LOOPBACK:
                 return sizeof(struct ethhdr);
-#ifdef CONFIG_TR
+#if defined(CONFIG_TR) || defined(CONFIG_TR_MODULE)
         case ARPHRD_IEEE802_TR:
                 return sizeof(struct trh_hdr);
 #endif
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4aefa6dc3091..875c8dec940a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2030,7 +2030,8 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
                                 continue;
 
                         if (wk->type != IEEE80211_WORK_DIRECT_PROBE &&
-                            wk->type != IEEE80211_WORK_AUTH)
+                            wk->type != IEEE80211_WORK_AUTH &&
+                            wk->type != IEEE80211_WORK_ASSOC)
                                 continue;
 
                         if (memcmp(req->bss->bssid, wk->filter_ta, ETH_ALEN))
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 2a570184e5a9..ea2192444ce6 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -440,11 +440,25 @@ void sctp_icmp_proto_unreachable(struct sock *sk,
 {
         SCTP_DEBUG_PRINTK("%s\n",  __func__);
 
-        sctp_do_sm(SCTP_EVENT_T_OTHER,
-                   SCTP_ST_OTHER(SCTP_EVENT_ICMP_PROTO_UNREACH),
-                   asoc->state, asoc->ep, asoc, t,
-                   GFP_ATOMIC);
+        if (sock_owned_by_user(sk)) {
+                if (timer_pending(&t->proto_unreach_timer))
+                        return;
+                else {
+                        if (!mod_timer(&t->proto_unreach_timer,
+                                                jiffies + (HZ/20)))
+                                sctp_association_hold(asoc);
+                }
+                        
+        } else {
+                if (timer_pending(&t->proto_unreach_timer) &&
+                    del_timer(&t->proto_unreach_timer))
+                        sctp_association_put(asoc);
 
+                sctp_do_sm(SCTP_EVENT_T_OTHER,
+                           SCTP_ST_OTHER(SCTP_EVENT_ICMP_PROTO_UNREACH),
+                           asoc->state, asoc->ep, asoc, t,
+                           GFP_ATOMIC);
+        }
 }
 
 /* Common lookup code for icmp/icmpv6 error handler. */
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index d5ae450b6f02..eb1f42f45fdd 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -397,6 +397,41 @@ out_unlock:
         sctp_transport_put(transport);
 }
 
+/* Handle the timeout of the ICMP protocol unreachable timer.  Trigger
+ * the correct state machine transition that will close the association.
+ */
+void sctp_generate_proto_unreach_event(unsigned long data)
+{
+        struct sctp_transport *transport = (struct sctp_transport *) data;
+        struct sctp_association *asoc = transport->asoc;
+        
+        sctp_bh_lock_sock(asoc->base.sk);
+        if (sock_owned_by_user(asoc->base.sk)) {
+                SCTP_DEBUG_PRINTK("%s:Sock is busy.\n", __func__);
+
+                /* Try again later.  */
+                if (!mod_timer(&transport->proto_unreach_timer,
+                                jiffies + (HZ/20)))
+                        sctp_association_hold(asoc);
+                goto out_unlock;
+        }
+
+        /* Is this structure just waiting around for us to actually
+         * get destroyed?
+         */
+        if (asoc->base.dead)
+                goto out_unlock;
+
+        sctp_do_sm(SCTP_EVENT_T_OTHER,
+                   SCTP_ST_OTHER(SCTP_EVENT_ICMP_PROTO_UNREACH),
+                   asoc->state, asoc->ep, asoc, transport, GFP_ATOMIC);
+
+out_unlock:
+        sctp_bh_unlock_sock(asoc->base.sk);
+        sctp_association_put(asoc);
+}
+
+
 /* Inject a SACK Timeout event into the state machine.  */
 static void sctp_generate_sack_event(unsigned long data)
 {
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index be4d63d5a5cc..4a368038d46f 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -108,6 +108,8 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
                         (unsigned long)peer);
         setup_timer(&peer->hb_timer, sctp_generate_heartbeat_event,
                         (unsigned long)peer);
+        setup_timer(&peer->proto_unreach_timer,
+                    sctp_generate_proto_unreach_event, (unsigned long)peer);
 
         /* Initialize the 64-bit random nonce sent with heartbeat. */
         get_random_bytes(&peer->hb_nonce, sizeof(peer->hb_nonce));
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 9b3c20f42f98..613c9cc90570 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -1925,7 +1925,7 @@ void *raw_field_ptr(struct event *event, const char *name, void *data)
         if (!field)
                 return NULL;
 
-        if (field->flags & FIELD_IS_STRING) {
+        if (field->flags & FIELD_IS_DYNAMIC) {
                 int offset;
 
                 offset = *(int *)(data + field->offset);