37 files changed, 352 insertions, 95 deletions
diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h
index ae90e0f63995..4f76959397fa 100644
--- a/include/asm-generic/unistd.h
+++ b/include/asm-generic/unistd.h
@@ -683,9 +683,11 @@ __SC_COMP(__NR_clock_adjtime, sys_clock_adjtime, compat_sys_clock_adjtime)
 __SYSCALL(__NR_syncfs, sys_syncfs)
 #define __NR_setns 268
 __SYSCALL(__NR_setns, sys_setns)
+#define __NR_sendmmsg 269
+__SC_COMP(__NR_sendmmsg, sys_sendmmsg, compat_sys_sendmmsg)
 #undef __NR_syscalls
-#define __NR_syscalls 269
+#define __NR_syscalls 270
 /*
 * All syscalls below here should go away really,
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index f04b2a3b0f49..e08f344c6cff 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -467,6 +467,17 @@
        {0x1002, 0x9614, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
        {0x1002, 0x9615, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
        {0x1002, 0x9616, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS780|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9640, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9641, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9642, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO2|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9643, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO2|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9644, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO2|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9645, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO2|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9647, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\
+        {0x1002, 0x9648, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\
+        {0x1002, 0x964a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x964e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\
+        {0x1002, 0x964f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_SUMO|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP},\
        {0x1002, 0x9710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
        {0x1002, 0x9711, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
        {0x1002, 0x9712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS880|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h
index 1ae12710d732..98999cf107ce 100644
--- a/include/linux/basic_mmio_gpio.h
+++ b/include/linux/basic_mmio_gpio.h
@@ -16,6 +16,7 @@
 #include <linux/gpio.h>
 #include <linux/types.h>
 #include <linux/compiler.h>
+#include <linux/spinlock_types.h>
 struct bgpio_pdata {
        int base;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index ae9091a68480..1a23722e8878 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1282,8 +1282,8 @@ queue_max_integrity_segments(struct request_queue *q)
 #define blk_get_integrity(a)                    (0)
 #define blk_integrity_compare(a, b)             (0)
 #define blk_integrity_register(a, b)            (0)
-#define blk_integrity_unregister(a)             do { } while (0);
+#define blk_integrity_unregister(a)             do { } while (0)
-#define blk_queue_max_integrity_segments(a, b)  do { } while (0);
+#define blk_queue_max_integrity_segments(a, b)  do { } while (0)
 #define queue_max_integrity_segments(a)         (0)
 #define blk_integrity_merge_rq(a, b, c)         (0)
 #define blk_integrity_merge_bio(a, b, c)        (0)
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h
index 5619f8522738..bbd8661b3473 100644
--- a/include/linux/dma_remapping.h
+++ b/include/linux/dma_remapping.h
@@ -9,8 +9,12 @@
 #define VTD_PAGE_MASK           (((u64)-1) << VTD_PAGE_SHIFT)
 #define VTD_PAGE_ALIGN(addr)    (((addr) + VTD_PAGE_SIZE - 1) & VTD_PAGE_MASK)
+#define VTD_STRIDE_SHIFT        (9)
+#define VTD_STRIDE_MASK         (((u64)-1) << VTD_STRIDE_SHIFT)
 #define DMA_PTE_READ (1)
 #define DMA_PTE_WRITE (2)
+#define DMA_PTE_LARGE_PAGE (1 << 7)
 #define DMA_PTE_SNP (1 << 11)
 #define CONTEXT_TT_MULTI_LEVEL  0
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index c6a850ab2ec5..439b173c5882 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -268,7 +268,7 @@ struct ethtool_pauseparam {
        __u32   cmd;    /* ETHTOOL_{G,S}PAUSEPARAM */
        /* If the link is being auto-negotiated (via ethtool_cmd.autoneg
-         * being true) the user may set 'autonet' here non-zero to have the
+         * being true) the user may set 'autoneg' here non-zero to have the
         * pause parameters be auto-negotiated too.  In such a case, the
         * {rx,tx}_pause values below determine what capabilities are
         * advertised.
@@ -811,7 +811,7 @@ bool ethtool_invalid_flags(struct net_device *dev, u32 data, u32 supported);
 * @get_tx_csum: Deprecated as redundant. Report whether transmit checksums
 *      are turned on or off.
 * @set_tx_csum: Deprecated in favour of generic netdev features.  Turn
- *      transmit checksums on or off.  Returns a egative error code or zero.
+ *      transmit checksums on or off.  Returns a negative error code or zero.
 * @get_sg: Deprecated as redundant.  Report whether scatter-gather is
 *      enabled.  
 * @set_sg: Deprecated in favour of generic netdev features.  Turn
@@ -1087,7 +1087,7 @@ struct ethtool_ops {
 /* The following are all involved in forcing a particular link
 * mode for the device for setting things.  When getting the
 * devices settings, these indicate the current mode and whether
- * it was foced up into this mode or autonegotiated.
+ * it was forced up into this mode or autonegotiated.
 */
 /* The forced speed, 10Mb, 100Mb, gigabit, 2.5Gb, 10GbE. */
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c55d6b7cd5d6..1c777878f1ea 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -208,6 +208,7 @@ struct inodes_stat_t {
 #define MS_KERNMOUNT    (1<<22) /* this is a kern_mount call */
 #define MS_I_VERSION    (1<<23) /* Update inode I_version field */
 #define MS_STRICTATIME  (1<<24) /* Always perform atime updates */
+#define MS_NOSEC        (1<<28)
 #define MS_BORN         (1<<29)
 #define MS_ACTIVE       (1<<30)
 #define MS_NOUSER       (1<<31)
@@ -743,9 +744,13 @@ struct inode {
        spinlock_t              i_lock; /* i_blocks, i_bytes, maybe i_size */
        unsigned int            i_flags;
+        unsigned int            i_state;
+#ifdef CONFIG_SECURITY
+        void                    *i_security;
+#endif
        struct mutex            i_mutex;
-        unsigned long           i_state;
        unsigned long           dirtied_when;   /* jiffies of first dirtying */
        struct hlist_node       i_hash;
@@ -797,9 +802,6 @@ struct inode {
        atomic_t                i_readcount; /* struct files open RO */
 #endif
        atomic_t                i_writecount;
-#ifdef CONFIG_SECURITY
-        void                    *i_security;
-#endif
 #ifdef CONFIG_FS_POSIX_ACL
        struct posix_acl        *i_acl;
        struct posix_acl        *i_default_acl;
@@ -2591,7 +2593,7 @@ static inline int is_sxid(mode_t mode)
 static inline void inode_has_no_xattr(struct inode *inode)
 {
-        if (!is_sxid(inode->i_mode))
+        if (!is_sxid(inode->i_mode) && (inode->i_sb->s_flags & MS_NOSEC))
                inode->i_flags |= S_NOSEC;
 }
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index b78956b3c2e7..300d7582006e 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -100,6 +100,7 @@ struct hd_struct {
        sector_t start_sect;
        sector_t nr_sects;
        sector_t alignment_offset;
+        unsigned int discard_alignment;
        struct device __dev;
        struct kobject *holder_dir;
        int policy, partno;
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index b2eee5879883..bf56b6f78270 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1003,8 +1003,12 @@ struct ieee80211_ht_info {
 #define WLAN_CAPABILITY_ESS             (1<<0)
 #define WLAN_CAPABILITY_IBSS            (1<<1)
-/* A mesh STA sets the ESS and IBSS capability bits to zero */
+/*
-#define WLAN_CAPABILITY_IS_MBSS(cap)    \
+ * A mesh STA sets the ESS and IBSS capability bits to zero.
+ * however, this holds true for p2p probe responses (in the p2p_find
+ * phase) as well.
+ */
+#define WLAN_CAPABILITY_IS_STA_BSS(cap) \
        (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
diff --git a/include/linux/if_packet.h b/include/linux/if_packet.h
index 72bfa5a034dd..7b318630139f 100644
--- a/include/linux/if_packet.h
+++ b/include/linux/if_packet.h
@@ -62,6 +62,7 @@ struct tpacket_auxdata {
        __u16           tp_mac;
        __u16           tp_net;
        __u16           tp_vlan_tci;
+        __u16           tp_padding;
 };
 /* Rx ring - header status */
@@ -70,6 +71,7 @@ struct tpacket_auxdata {
 #define TP_STATUS_COPY          0x2
 #define TP_STATUS_LOSING        0x4
 #define TP_STATUS_CSUMNOTREADY  0x8
+#define TP_STATUS_VLAN_VALID   0x10 /* auxdata has valid tp_vlan_tci */
 /* Tx ring - header status */
 #define TP_STATUS_AVAILABLE     0x0
@@ -100,6 +102,7 @@ struct tpacket2_hdr {
        __u32           tp_sec;
        __u32           tp_nsec;
        __u16           tp_vlan_tci;
+        __u16           tp_padding;
 };
 #define TPACKET2_HDRLEN         (TPACKET_ALIGN(sizeof(struct tpacket2_hdr)) + sizeof(struct sockaddr_ll))
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index dc01681fbb42..affa27380b72 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -225,7 +225,7 @@ static inline int vlan_hwaccel_receive_skb(struct sk_buff *skb,
 }
 /**
- * __vlan_put_tag - regular VLAN tag inserting
+ * vlan_insert_tag - regular VLAN tag inserting
 * @skb: skbuff to tag
 * @vlan_tci: VLAN TCI to insert
 *
@@ -234,8 +234,10 @@ static inline int vlan_hwaccel_receive_skb(struct sk_buff *skb,
 *
 * Following the skb_unshare() example, in case of error, the calling function
 * doesn't have to worry about freeing the original skb.
+ *
+ * Does not change skb->protocol so this function can be used during receive.
 */
-static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci)
+static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb, u16 vlan_tci)
 {
        struct vlan_ethhdr *veth;
@@ -255,8 +257,25 @@ static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci)
        /* now, the TCI */
        veth->h_vlan_TCI = htons(vlan_tci);
-        skb->protocol = htons(ETH_P_8021Q);
+        return skb;
+}
+/**
+ * __vlan_put_tag - regular VLAN tag inserting
+ * @skb: skbuff to tag
+ * @vlan_tci: VLAN TCI to insert
+ *
+ * Inserts the VLAN tag into @skb as part of the payload
+ * Returns a VLAN tagged skb. If a new skb is created, @skb is freed.
+ *
+ * Following the skb_unshare() example, in case of error, the calling function
+ * doesn't have to worry about freeing the original skb.
+ */
+static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci)
+{
+        skb = vlan_insert_tag(skb, vlan_tci);
+        if (skb)
+                skb->protocol = htons(ETH_P_8021Q);
        return skb;
 }
diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h
index 819acaaac3f5..714ba08dc092 100644
--- a/include/linux/irqreturn.h
+++ b/include/linux/irqreturn.h
@@ -8,9 +8,9 @@
 * @IRQ_WAKE_THREAD     handler requests to wake the handler thread
 */
 enum irqreturn {
-        IRQ_NONE,
+        IRQ_NONE                = (0 << 0),
-        IRQ_HANDLED,
+        IRQ_HANDLED             = (1 << 0),
-        IRQ_WAKE_THREAD,
+        IRQ_WAKE_THREAD         = (1 << 1),
 };
 typedef enum irqreturn irqreturn_t;
diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h
index d40bfa1d9c91..e5f21d293c70 100644
--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -19,6 +19,7 @@
 #include <linux/mtd/partitions.h>
 struct map_info;
+struct platform_device;
 struct physmap_flash_data {
        unsigned int            width;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ca333e79e10f..54b8b4d7b68f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2555,7 +2555,7 @@ extern void netdev_class_remove_file(struct class_attribute *class_attr);
 extern struct kobj_ns_type_operations net_ns_type_operations;
-extern char *netdev_drivername(const struct net_device *dev, char *buffer, int len);
+extern const char *netdev_drivername(const struct net_device *dev);
 extern void linkwatch_run_queue(void);
diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h
index 50cdc2559a5a..0d3dd66322ec 100644
--- a/include/linux/netfilter/nf_conntrack_common.h
+++ b/include/linux/netfilter/nf_conntrack_common.h
@@ -18,6 +18,9 @@ enum ip_conntrack_info {
        /* >= this indicates reply direction */
        IP_CT_IS_REPLY,
+        IP_CT_ESTABLISHED_REPLY = IP_CT_ESTABLISHED + IP_CT_IS_REPLY,
+        IP_CT_RELATED_REPLY = IP_CT_RELATED + IP_CT_IS_REPLY,
+        IP_CT_NEW_REPLY = IP_CT_NEW + IP_CT_IS_REPLY,   
        /* Number of distinct IP_CT types (no NEW in reply dirn). */
        IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1
 };
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 3412684ce5d5..e0786e35f247 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -137,14 +137,14 @@ enum perf_event_sample_format {
 *
 * struct read_format {
 *      { u64           value;
- *        { u64         time_enabled; } && PERF_FORMAT_ENABLED
+ *        { u64         time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
- *        { u64         time_running; } && PERF_FORMAT_RUNNING
+ *        { u64         time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
 *        { u64         id;           } && PERF_FORMAT_ID
 *      } && !PERF_FORMAT_GROUP
 *
 *      { u64           nr;
- *        { u64         time_enabled; } && PERF_FORMAT_ENABLED
+ *        { u64         time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED
- *        { u64         time_running; } && PERF_FORMAT_RUNNING
+ *        { u64         time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING
 *        { u64         value;
 *          { u64       id;           } && PERF_FORMAT_ID
 *        }             cntr[nr];
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2a8621c4be1e..a837b20ba190 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1063,6 +1063,7 @@ struct sched_domain;
 */
 #define WF_SYNC         0x01            /* waker goes to sleep after wakup */
 #define WF_FORK         0x02            /* child wakeup after fork */
+#define WF_MIGRATED     0x04            /* internal use, task got migrated */
 #define ENQUEUE_WAKEUP          1
 #define ENQUEUE_HEAD            2
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index e9811892844f..c6db9fb33c44 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -28,6 +28,7 @@
 #include <linux/spinlock.h>
 #include <linux/preempt.h>
+#include <asm/processor.h>
 typedef struct {
        unsigned sequence;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index e8b78ce14474..c0a4f3ab0cc0 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1256,6 +1256,11 @@ static inline void skb_reserve(struct sk_buff *skb, int len)
        skb->tail += len;
 }
+static inline void skb_reset_mac_len(struct sk_buff *skb)
+{
+        skb->mac_len = skb->network_header - skb->mac_header;
+}
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
 {
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 8c0e349f4a6c..445702c60d04 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -24,6 +24,7 @@ extern int swiotlb_force;
 extern void swiotlb_init(int verbose);
 extern void swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose);
+extern unsigned long swioltb_nr_tbl(void);
 /*
 * Enumeration for sync targets
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 5b07792ccb46..ff7dc08696a8 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -76,7 +76,7 @@
 *      tty device.  It is solely the responsibility of the line
 *      discipline to handle poll requests.
 *
- * unsigned int (*receive_buf)(struct tty_struct *, const unsigned char *cp,
+ * void (*receive_buf)(struct tty_struct *, const unsigned char *cp,
 *                     char *fp, int count);
 *
 *      This function is called by the low-level tty driver to send
@@ -84,8 +84,7 @@
 *      processing.  <cp> is a pointer to the buffer of input
 *      character received by the device.  <fp> is a pointer to a
 *      pointer of flag bytes which indicate whether a character was
- *      received with a parity error, etc. Returns the amount of bytes
+ *      received with a parity error, etc.
- *      received.
 * 
 * void (*write_wakeup)(struct tty_struct *);
 *
@@ -141,8 +140,8 @@ struct tty_ldisc_ops {
        /*
         * The following routines are called from below.
         */
-        unsigned int (*receive_buf)(struct tty_struct *,
+        void    (*receive_buf)(struct tty_struct *, const unsigned char *cp,
-                        const unsigned char *cp, char *fp, int count);
+                               char *fp, int count);
        void    (*write_wakeup)(struct tty_struct *);
        void    (*dcd_change)(struct tty_struct *, unsigned int,
                                struct pps_event_time *);
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 71693d4a4fe1..17df3600bcef 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -62,7 +62,9 @@
        US_FLAG(NO_READ_DISC_INFO,      0x00040000)             \
                /* cannot handle READ_DISC_INFO */              \
        US_FLAG(NO_READ_CAPACITY_16,    0x00080000)             \
-                /* cannot handle READ_CAPACITY_16 */
+                /* cannot handle READ_CAPACITY_16 */            \
+        US_FLAG(INITIAL_READ10, 0x00100000)                     \
+                /* Initial READ(10) (and others) must be retried */
 #define US_FLAG(name, value)    US_FL_##name = value ,
 enum { US_DO_ALL_FLAGS };
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index aff5b4f74041..710885749605 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -51,6 +51,13 @@ struct virtqueue {
 *      This re-enables callbacks; it returns "false" if there are pending
 *      buffers in the queue, to detect a possible race between the driver
 *      checking for more work, and enabling callbacks.
+ * virtqueue_enable_cb_delayed: restart callbacks after disable_cb.
+ *      vq: the struct virtqueue we're talking about.
+ *      This re-enables callbacks but hints to the other side to delay
+ *      interrupts until most of the available buffers have been processed;
+ *      it returns "false" if there are many pending buffers in the queue,
+ *      to detect a possible race between the driver checking for more work,
+ *      and enabling callbacks.
 * virtqueue_detach_unused_buf: detach first unused buffer
 *      vq: the struct virtqueue we're talking about.
 *      Returns NULL or the "data" token handed to add_buf
@@ -86,6 +93,8 @@ void virtqueue_disable_cb(struct virtqueue *vq);
 bool virtqueue_enable_cb(struct virtqueue *vq);
+bool virtqueue_enable_cb_delayed(struct virtqueue *vq);
 void *virtqueue_detach_unused_buf(struct virtqueue *vq);
 /**
diff --git a/include/linux/virtio_9p.h b/include/linux/virtio_9p.h
index e68b439b2860..277c4ad44e84 100644
--- a/include/linux/virtio_9p.h
+++ b/include/linux/virtio_9p.h
@@ -1,7 +1,30 @@
 #ifndef _LINUX_VIRTIO_9P_H
 #define _LINUX_VIRTIO_9P_H
 /* This header is BSD licensed so anyone can use the definitions to implement
- * compatible drivers/servers. */
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE. */
 #include <linux/types.h>
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
diff --git a/include/linux/virtio_balloon.h b/include/linux/virtio_balloon.h
index a50ecd1b81a2..652dc8bea921 100644
--- a/include/linux/virtio_balloon.h
+++ b/include/linux/virtio_balloon.h
@@ -1,7 +1,30 @@
 #ifndef _LINUX_VIRTIO_BALLOON_H
 #define _LINUX_VIRTIO_BALLOON_H
 /* This header is BSD licensed so anyone can use the definitions to implement
- * compatible drivers/servers. */
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE. */
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index 167720d695ed..e0edb40ca7aa 100644
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -1,7 +1,30 @@
 #ifndef _LINUX_VIRTIO_BLK_H
 #define _LINUX_VIRTIO_BLK_H
 /* This header is BSD licensed so anyone can use the definitions to implement
- * compatible drivers/servers. */
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE. */
 #include <linux/types.h>
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 800617b4ddd5..39c88c5ad19d 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -1,7 +1,30 @@
 #ifndef _LINUX_VIRTIO_CONFIG_H
 #define _LINUX_VIRTIO_CONFIG_H
 /* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
- * anyone can use the definitions to implement compatible drivers/servers. */
+ * anyone can use the definitions to implement compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE. */
 /* Virtio devices use a standardized configuration space to define their
 * features and pass configuration information, but each implementation can
diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h
index e4d333543a33..bdf4b0034739 100644
--- a/include/linux/virtio_console.h
+++ b/include/linux/virtio_console.h
@@ -5,7 +5,31 @@
 #include <linux/virtio_config.h>
 /*
 * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
- * anyone can use the definitions to implement compatible drivers/servers.
+ * anyone can use the definitions to implement compatible drivers/servers:
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
 *
 * Copyright (C) Red Hat, Inc., 2009, 2010, 2011
 * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011
diff --git a/include/linux/virtio_ids.h b/include/linux/virtio_ids.h
index 06660c0a78d7..85bb0bb66ffc 100644
--- a/include/linux/virtio_ids.h
+++ b/include/linux/virtio_ids.h
@@ -5,7 +5,29 @@
 *
 * This header is BSD licensed so anyone can use the definitions to implement
 * compatible drivers/servers.
- */
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE. */
 #define VIRTIO_ID_NET           1 /* virtio net */
 #define VIRTIO_ID_BLOCK         2 /* virtio block */
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 085e42298ce5..136040bba3e3 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -1,7 +1,30 @@
 #ifndef _LINUX_VIRTIO_NET_H
 #define _LINUX_VIRTIO_NET_H
 /* This header is BSD licensed so anyone can use the definitions to implement
- * compatible drivers/servers. */
+ * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE. */
 #include <linux/types.h>
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
diff --git a/include/linux/virtio_pci.h b/include/linux/virtio_pci.h
index 9a3d7c48c622..ea66f3f60d63 100644
--- a/include/linux/virtio_pci.h
+++ b/include/linux/virtio_pci.h
@@ -11,6 +11,29 @@
 *
 * This header is BSD licensed so anyone can use the definitions to implement
 * compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
 */
 #ifndef _LINUX_VIRTIO_PCI_H
diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h
index e4d144b132b5..4a32cb6da425 100644
--- a/include/linux/virtio_ring.h
+++ b/include/linux/virtio_ring.h
@@ -7,6 +7,29 @@
 * This header is BSD licensed so anyone can use the definitions to implement
 * compatible drivers/servers.
 *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
 * Copyright Rusty Russell IBM Corporation 2007. */
 #include <linux/types.h>
@@ -29,6 +52,12 @@
 /* We support indirect buffer descriptors */
 #define VIRTIO_RING_F_INDIRECT_DESC     28
+/* The Guest publishes the used index for which it expects an interrupt
+ * at the end of the avail ring. Host should ignore the avail->flags field. */
+/* The Host publishes the avail index for which it expects a kick
+ * at the end of the used ring. Guest should ignore the used->flags field. */
+#define VIRTIO_RING_F_EVENT_IDX         29
 /* Virtio ring descriptors: 16 bytes.  These can chain together via "next". */
 struct vring_desc {
        /* Address (guest-physical). */
@@ -83,6 +112,7 @@ struct vring {
 *      __u16 avail_flags;
 *      __u16 avail_idx;
 *      __u16 available[num];
+ *      __u16 used_event_idx;
 *
 *      // Padding to the next align boundary.
 *      char pad[];
@@ -91,8 +121,14 @@ struct vring {
 *      __u16 used_flags;
 *      __u16 used_idx;
 *      struct vring_used_elem used[num];
+ *      __u16 avail_event_idx;
 * };
 */
+/* We publish the used event index at the end of the available ring, and vice
+ * versa. They are at the end for backwards compatibility. */
+#define vring_used_event(vr) ((vr)->avail->ring[(vr)->num])
+#define vring_avail_event(vr) (*(__u16 *)&(vr)->used->ring[(vr)->num])
 static inline void vring_init(struct vring *vr, unsigned int num, void *p,
                              unsigned long align)
 {
@@ -107,7 +143,21 @@ static inline unsigned vring_size(unsigned int num, unsigned long align)
 {
        return ((sizeof(struct vring_desc) * num + sizeof(__u16) * (2 + num)
                 + align - 1) & ~(align - 1))
-                + sizeof(__u16) * 2 + sizeof(struct vring_used_elem) * num;
+                + sizeof(__u16) * 3 + sizeof(struct vring_used_elem) * num;
+}
+/* The following is used with USED_EVENT_IDX and AVAIL_EVENT_IDX */
+/* Assuming a given event_idx value from the other size, if
+ * we have just incremented index from old to new_idx,
+ * should we trigger an event? */
+static inline int vring_need_event(__u16 event_idx, __u16 new_idx, __u16 old)
+{
+        /* Note: Xen has similar logic for notification hold-off
+         * in include/xen/interface/io/ring.h with req_event and req_prod
+         * corresponding to event_idx + 1 and new_idx respectively.
+         * Note also that req_event and req_prod in Xen start at 1,
+         * event indexes in virtio start at 0. */
+        return (__u16)(new_idx - event_idx - 1) < (__u16)(new_idx - old);
 }
 #ifdef __KERNEL__
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 93e96fb93452..c7c40f1d2624 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -128,8 +128,8 @@ struct video_device
        struct mutex *lock;
 };
-#define media_entity_to_video_device(entity) \
+#define media_entity_to_video_device(__e) \
-        container_of(entity, struct video_device, entity)
+        container_of(__e, struct video_device, entity)
 /* dev to video-device */
 #define to_video_device(cd) container_of(cd, struct video_device, dev)
diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h
index 2b447646ce4b..dd6847e5d6e4 100644
--- a/include/net/sctp/command.h
+++ b/include/net/sctp/command.h
@@ -107,6 +107,7 @@ typedef enum {
        SCTP_CMD_UPDATE_INITTAG, /* Update peer inittag */
        SCTP_CMD_SEND_MSG,       /* Send the whole use message */
        SCTP_CMD_SEND_NEXT_ASCONF, /* Send the next ASCONF after ACK */
+        SCTP_CMD_PURGE_ASCONF_QUEUE, /* Purge all asconf queues.*/
        SCTP_CMD_LAST
 } sctp_verb_t;
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 795f4886e111..7df327a6d564 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1993,7 +1993,7 @@ void sctp_assoc_clean_asconf_ack_cache(const struct sctp_association *asoc);
 struct sctp_chunk *sctp_assoc_lookup_asconf_ack(
                                        const struct sctp_association *asoc,
                                        __be32 serial);
+void sctp_asconf_queue_teardown(struct sctp_association *asoc);
 int sctp_cmp_addr_exact(const union sctp_addr *ss1,
                        const union sctp_addr *ss2);
diff --git a/include/staging/altera.h b/include/staging/altera.h
deleted file mode 100644
index 94c0c6181daf..000000000000
--- a/include/staging/altera.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * altera.h
- *
- * altera FPGA driver
- *
- * Copyright (C) Altera Corporation 1998-2001
- * Copyright (C) 2010 NetUP Inc.
- * Copyright (C) 2010 Igor M. Liplianin <liplianin@netup.ru>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#ifndef _ALTERA_H_
-#define _ALTERA_H_
-struct altera_config {
-        void *dev;
-        u8 *action;
-        int (*jtag_io) (void *dev, int tms, int tdi, int tdo);
-};
-#if defined(CONFIG_ALTERA_STAPL) || \
-                (defined(CONFIG_ALTERA_STAPL_MODULE) && defined(MODULE))
-extern int altera_init(struct altera_config *config, const struct firmware *fw);
-#else
-static inline int altera_init(struct altera_config *config,
-                                                const struct firmware *fw)
-{
-        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
-        return 0;
-}
-#endif /* CONFIG_ALTERA_STAPL */
-#endif /* _ALTERA_H_ */
diff --git a/include/trace/events/net.h b/include/trace/events/net.h
index 5f247f5ffc56..f99645d05a8f 100644
--- a/include/trace/events/net.h
+++ b/include/trace/events/net.h
@@ -12,22 +12,24 @@
 TRACE_EVENT(net_dev_xmit,
        TP_PROTO(struct sk_buff *skb,
-                 int rc),
+                 int rc,
+                 struct net_device *dev,
+                 unsigned int skb_len),
-        TP_ARGS(skb, rc),
+        TP_ARGS(skb, rc, dev, skb_len),
        TP_STRUCT__entry(
                __field(        void *,         skbaddr         )
                __field(        unsigned int,   len             )
                __field(        int,            rc              )
-                __string(       name,           skb->dev->name  )
+                __string(       name,           dev->name       )
        ),
        TP_fast_assign(
                __entry->skbaddr = skb;
-                __entry->len = skb->len;
+                __entry->len = skb_len;
                __entry->rc = rc;
-                __assign_str(name, skb->dev->name);
+                __assign_str(name, dev->name);
        ),
        TP_printk("dev=%s skbaddr=%p len=%u rc=%d",