156 files changed, 2008 insertions, 1455 deletions

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 2a739adaa92b..ab2225da0ee2 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -382,6 +382,18 @@ static void vlan_sync_address(struct net_device *dev,
         memcpy(vlan->real_dev_addr, dev->dev_addr, ETH_ALEN);
 }
 
+static void vlan_transfer_features(struct net_device *dev,
+                                   struct net_device *vlandev)
+{
+        unsigned long old_features = vlandev->features;
+
+        vlandev->features &= ~dev->vlan_features;
+        vlandev->features |= dev->features & dev->vlan_features;
+
+        if (old_features != vlandev->features)
+                netdev_features_change(vlandev);
+}
+
 static void __vlan_device_event(struct net_device *dev, unsigned long event)
 {
         switch (event) {
@@ -410,10 +422,8 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
         int i, flgs;
         struct net_device *vlandev;
 
-        if (is_vlan_dev(dev)) {
+        if (is_vlan_dev(dev))
                 __vlan_device_event(dev, event);
-                goto out;
-        }
 
         grp = __vlan_find_group(dev);
         if (!grp)
@@ -450,6 +460,18 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
                 }
                 break;
 
+        case NETDEV_FEAT_CHANGE:
+                /* Propagate device features to underlying device */
+                for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+                        vlandev = vlan_group_get_device(grp, i);
+                        if (!vlandev)
+                                continue;
+
+                        vlan_transfer_features(dev, vlandev);
+                }
+
+                break;
+
         case NETDEV_DOWN:
                 /* Put all VLANs for this dev in the down state too.  */
                 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index c961f0826005..5d055c242ed8 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -663,6 +663,8 @@ static int vlan_dev_init(struct net_device *dev)
                                           (1<<__LINK_STATE_DORMANT))) |
                       (1<<__LINK_STATE_PRESENT);
 
+        dev->features |= real_dev->features & real_dev->vlan_features;
+
         /* ipv6 shared card related stuff */
         dev->dev_id = real_dev->dev_id;
 
diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index bafc50c9e6ff..ff34c5acc130 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -13,16 +13,6 @@ menuconfig NET_9P
 
           If unsure, say N.
 
-config NET_9P_FD
-        depends on NET_9P
-        default y if NET_9P
-        tristate "9P File Descriptor Transports (Experimental)"
-        help
-          This builds support for file descriptor transports for 9p
-          which includes support for TCP/IP, named pipes, or passed
-          file descriptors.  TCP/IP is the default transport for 9p,
-          so if you are going to use 9p, you'll likely want this.
-
 config NET_9P_VIRTIO
         depends on NET_9P && EXPERIMENTAL && VIRTIO
         tristate "9P Virtio Transport (Experimental)"
diff --git a/net/9p/Makefile b/net/9p/Makefile
index 8a1051101898..519219480db1 100644
--- a/net/9p/Makefile
+++ b/net/9p/Makefile
@@ -1,5 +1,4 @@
 obj-$(CONFIG_NET_9P) := 9pnet.o
-obj-$(CONFIG_NET_9P_FD) += 9pnet_fd.o
 obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
 
 9pnet-objs := \
@@ -9,8 +8,6 @@ obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
         error.o \
         fcprint.o \
         util.o \
-
-9pnet_fd-objs := \
         trans_fd.o \
 
 9pnet_virtio-objs := \
diff --git a/net/9p/client.c b/net/9p/client.c
index 84e087e24146..2ffe40cf2f01 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -64,21 +64,30 @@ static match_table_t tokens = {
  * @options: options string passed from mount
  * @v9ses: existing v9fs session information
  *
+ * Return 0 upon success, -ERRNO upon failure
  */
 
-static void parse_opts(char *options, struct p9_client *clnt)
+static int parse_opts(char *opts, struct p9_client *clnt)
 {
+        char *options;
         char *p;
         substring_t args[MAX_OPT_ARGS];
         int option;
-        int ret;
+        int ret = 0;
 
         clnt->trans_mod = v9fs_default_trans();
         clnt->dotu = 1;
         clnt->msize = 8192;
 
-        if (!options)
-                return;
+        if (!opts)
+                return 0;
+
+        options = kstrdup(opts, GFP_KERNEL);
+        if (!options) {
+                P9_DPRINTK(P9_DEBUG_ERROR,
+                                "failed to allocate copy of option string\n");
+                return -ENOMEM;
+        }
 
         while ((p = strsep(&options, ",")) != NULL) {
                 int token;
@@ -86,10 +95,11 @@ static void parse_opts(char *options, struct p9_client *clnt)
                         continue;
                 token = match_token(p, tokens, args);
                 if (token < Opt_trans) {
-                        ret = match_int(&args[0], &option);
-                        if (ret < 0) {
+                        int r = match_int(&args[0], &option);
+                        if (r < 0) {
                                 P9_DPRINTK(P9_DEBUG_ERROR,
                                         "integer field, but no integer?\n");
+                                ret = r;
                                 continue;
                         }
                 }
@@ -107,6 +117,8 @@ static void parse_opts(char *options, struct p9_client *clnt)
                         continue;
                 }
         }
+        kfree(options);
+        return ret;
 }
 
 
@@ -138,16 +150,20 @@ struct p9_client *p9_client_create(const char *dev_name, char *options)
         if (!clnt)
                 return ERR_PTR(-ENOMEM);
 
+        clnt->trans = NULL;
         spin_lock_init(&clnt->lock);
         INIT_LIST_HEAD(&clnt->fidlist);
         clnt->fidpool = p9_idpool_create();
-        if (!clnt->fidpool) {
+        if (IS_ERR(clnt->fidpool)) {
                 err = PTR_ERR(clnt->fidpool);
                 clnt->fidpool = NULL;
                 goto error;
         }
 
-        parse_opts(options, clnt);
+        err = parse_opts(options, clnt);
+        if (err < 0)
+                goto error;
+
         if (clnt->trans_mod == NULL) {
                 err = -EPROTONOSUPPORT;
                 P9_DPRINTK(P9_DEBUG_ERROR,
diff --git a/net/9p/conv.c b/net/9p/conv.c
index 3fe35d532c87..44547201f5bc 100644
--- a/net/9p/conv.c
+++ b/net/9p/conv.c
@@ -197,7 +197,7 @@ static void buf_get_qid(struct cbuf *bufp, struct p9_qid *qid)
 
 /**
  * p9_size_wstat - calculate the size of a variable length stat struct
- * @stat: metadata (stat) structure
+ * @wstat: metadata (stat) structure
  * @dotu: non-zero if 9P2000.u
  *
  */
@@ -511,6 +511,12 @@ p9_create_common(struct cbuf *bufp, u32 size, u8 id)
         return fc;
 }
 
+/**
+ * p9_set_tag - set the tag field of an &p9_fcall structure
+ * @fc: fcall structure to set tag within
+ * @tag: tag id to set
+ */
+
 void p9_set_tag(struct p9_fcall *fc, u16 tag)
 {
         fc->tag = tag;
@@ -518,6 +524,12 @@ void p9_set_tag(struct p9_fcall *fc, u16 tag)
 }
 EXPORT_SYMBOL(p9_set_tag);
 
+/**
+ * p9_create_tversion - allocates and creates a T_VERSION request
+ * @msize: requested maximum data size
+ * @version: version string to negotiate
+ *
+ */
 struct p9_fcall *p9_create_tversion(u32 msize, char *version)
 {
         int size;
@@ -542,6 +554,16 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tversion);
 
+/**
+ * p9_create_tauth - allocates and creates a T_AUTH request
+ * @afid: handle to use for authentication protocol
+ * @uname: user name attempting to authenticate
+ * @aname: mount specifier for remote server
+ * @n_uname: numeric id for user attempting to authneticate
+ * @dotu: 9P2000.u extension flag
+ *
+ */
+
 struct p9_fcall *p9_create_tauth(u32 afid, char *uname, char *aname,
         u32 n_uname, int dotu)
 {
@@ -580,6 +602,18 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tauth);
 
+/**
+ * p9_create_tattach - allocates and creates a T_ATTACH request
+ * @fid: handle to use for the new mount point
+ * @afid: handle to use for authentication protocol
+ * @uname: user name attempting to attach
+ * @aname: mount specifier for remote server
+ * @n_uname: numeric id for user attempting to attach
+ * @n_uname: numeric id for user attempting to attach
+ * @dotu: 9P2000.u extension flag
+ *
+ */
+
 struct p9_fcall *
 p9_create_tattach(u32 fid, u32 afid, char *uname, char *aname,
         u32 n_uname, int dotu)
@@ -616,6 +650,12 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tattach);
 
+/**
+ * p9_create_tflush - allocates and creates a T_FLUSH request
+ * @oldtag: tag id for the transaction we are attempting to cancel
+ *
+ */
+
 struct p9_fcall *p9_create_tflush(u16 oldtag)
 {
         int size;
@@ -639,6 +679,15 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tflush);
 
+/**
+ * p9_create_twalk - allocates and creates a T_FLUSH request
+ * @fid: handle we are traversing from
+ * @newfid: a new handle for this transaction
+ * @nwname: number of path elements to traverse
+ * @wnames: array of path elements
+ *
+ */
+
 struct p9_fcall *p9_create_twalk(u32 fid, u32 newfid, u16 nwname,
                                      char **wnames)
 {
@@ -677,6 +726,13 @@ error:
 }
 EXPORT_SYMBOL(p9_create_twalk);
 
+/**
+ * p9_create_topen - allocates and creates a T_OPEN request
+ * @fid: handle we are trying to open
+ * @mode: what mode we are trying to open the file in
+ *
+ */
+
 struct p9_fcall *p9_create_topen(u32 fid, u8 mode)
 {
         int size;
@@ -701,6 +757,19 @@ error:
 }
 EXPORT_SYMBOL(p9_create_topen);
 
+/**
+ * p9_create_tcreate - allocates and creates a T_CREATE request
+ * @fid: handle of directory we are trying to create in
+ * @name: name of the file we are trying to create
+ * @perm: permissions for the file we are trying to create
+ * @mode: what mode we are trying to open the file in
+ * @extension: 9p2000.u extension string (for special files)
+ * @dotu: 9p2000.u enabled flag
+ *
+ * Note: Plan 9 create semantics include opening the resulting file
+ * which is why mode is included.
+ */
+
 struct p9_fcall *p9_create_tcreate(u32 fid, char *name, u32 perm, u8 mode,
         char *extension, int dotu)
 {
@@ -736,6 +805,13 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tcreate);
 
+/**
+ * p9_create_tread - allocates and creates a T_READ request
+ * @fid: handle of the file we are trying to read
+ * @offset: offset to start reading from
+ * @count: how many bytes to read
+ */
+
 struct p9_fcall *p9_create_tread(u32 fid, u64 offset, u32 count)
 {
         int size;
@@ -761,6 +837,17 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tread);
 
+/**
+ * p9_create_twrite - allocates and creates a T_WRITE request from the kernel
+ * @fid: handle of the file we are trying to write
+ * @offset: offset to start writing at
+ * @count: how many bytes to write
+ * @data: data to write
+ *
+ * This function will create a requst with data buffers from the kernel
+ * such as the page cache.
+ */
+
 struct p9_fcall *p9_create_twrite(u32 fid, u64 offset, u32 count,
                                       const char *data)
 {
@@ -794,6 +881,16 @@ error:
 }
 EXPORT_SYMBOL(p9_create_twrite);
 
+/**
+ * p9_create_twrite_u - allocates and creates a T_WRITE request from userspace
+ * @fid: handle of the file we are trying to write
+ * @offset: offset to start writing at
+ * @count: how many bytes to write
+ * @data: data to write
+ *
+ * This function will create a request with data buffers from userspace
+ */
+
 struct p9_fcall *p9_create_twrite_u(u32 fid, u64 offset, u32 count,
                                       const char __user *data)
 {
@@ -827,6 +924,14 @@ error:
 }
 EXPORT_SYMBOL(p9_create_twrite_u);
 
+/**
+ * p9_create_tclunk - allocate a request to forget about a file handle
+ * @fid: handle of the file we closing or forgetting about
+ *
+ * clunk is used both to close open files and to discard transient handles
+ * which may be created during meta-data operations and hierarchy traversal.
+ */
+
 struct p9_fcall *p9_create_tclunk(u32 fid)
 {
         int size;
@@ -850,6 +955,12 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tclunk);
 
+/**
+ * p9_create_tremove - allocate and create a request to remove a file
+ * @fid: handle of the file or directory we are removing
+ *
+ */
+
 struct p9_fcall *p9_create_tremove(u32 fid)
 {
         int size;
@@ -873,6 +984,12 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tremove);
 
+/**
+ * p9_create_tstat - allocate and populate a request for attributes
+ * @fid: handle of the file or directory we are trying to get the attributes of
+ *
+ */
+
 struct p9_fcall *p9_create_tstat(u32 fid)
 {
         int size;
@@ -896,6 +1013,14 @@ error:
 }
 EXPORT_SYMBOL(p9_create_tstat);
 
+/**
+ * p9_create_tstat - allocate and populate a request to change attributes
+ * @fid: handle of the file or directory we are trying to change
+ * @wstat: &p9_stat structure with attributes we wish to set
+ * @dotu: 9p2000.u enabled flag
+ *
+ */
+
 struct p9_fcall *p9_create_twstat(u32 fid, struct p9_wstat *wstat,
                                       int dotu)
 {
@@ -922,3 +1047,4 @@ error:
         return fc;
 }
 EXPORT_SYMBOL(p9_create_twstat);
+
diff --git a/net/9p/error.c b/net/9p/error.c
index 64104b9cb422..fdebe4314062 100644
--- a/net/9p/error.c
+++ b/net/9p/error.c
@@ -33,6 +33,13 @@
 #include <linux/errno.h>
 #include <net/9p/9p.h>
 
+/**
+ * struct errormap - map string errors from Plan 9 to Linux numeric ids
+ * @name: string sent over 9P
+ * @val: numeric id most closely representing @name
+ * @namelen: length of string
+ * @list: hash-table list for string lookup
+ */
 struct errormap {
         char *name;
         int val;
@@ -177,8 +184,7 @@ static struct errormap errmap[] = {
 };
 
 /**
- * p9_error_init - preload
- * @errstr: error string
+ * p9_error_init - preload mappings into hash list
  *
  */
 
@@ -206,6 +212,7 @@ EXPORT_SYMBOL(p9_error_init);
 /**
  * errstr2errno - convert error string to error number
  * @errstr: error string
+ * @len: length of error string
  *
  */
 
@@ -230,8 +237,8 @@ int p9_errstr2errno(char *errstr, int len)
         if (errno == 0) {
                 /* TODO: if error isn't found, add it dynamically */
                 errstr[len] = 0;
-                printk(KERN_ERR "%s: errstr :%s: not found\n", __func__,
-                       errstr);
+                printk(KERN_ERR "%s: server reported unknown error %s\n",
+                        __func__, errstr);
                 errno = 1;
         }
 
diff --git a/net/9p/fcprint.c b/net/9p/fcprint.c
index 40244fbd9b0d..53dd8e28dd8a 100644
--- a/net/9p/fcprint.c
+++ b/net/9p/fcprint.c
@@ -142,6 +142,14 @@ p9_printdata(char *buf, int buflen, u8 *data, int datalen)
         return p9_dumpdata(buf, buflen, data, datalen < 16?datalen:16);
 }
 
+/**
+ * p9_printfcall - decode and print a protocol structure into a buffer
+ * @buf: buffer to deposit decoded structure into
+ * @buflen: available space in buffer
+ * @fc: protocol rpc structure of type &p9_fcall
+ * @extended: whether or not session is operating with extended protocol
+ */
+
 int
 p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int extended)
 {
diff --git a/net/9p/mod.c b/net/9p/mod.c
index c285aab2af04..bdee1fb7cc62 100644
--- a/net/9p/mod.c
+++ b/net/9p/mod.c
@@ -39,9 +39,6 @@ module_param_named(debug, p9_debug_level, uint, 0);
 MODULE_PARM_DESC(debug, "9P debugging level");
 #endif
 
-extern int p9_mux_global_init(void);
-extern void p9_mux_global_exit(void);
-
 /*
  * Dynamic Transport Registration Routines
  *
@@ -52,7 +49,7 @@ static struct p9_trans_module *v9fs_default_transport;
 
 /**
  * v9fs_register_trans - register a new transport with 9p
- * @m - structure describing the transport module and entry points
+ * @m: structure describing the transport module and entry points
  *
  */
 void v9fs_register_trans(struct p9_trans_module *m)
@@ -65,7 +62,7 @@ EXPORT_SYMBOL(v9fs_register_trans);
 
 /**
  * v9fs_match_trans - match transport versus registered transports
- * @arg: string identifying transport
+ * @name: string identifying transport
  *
  */
 struct p9_trans_module *v9fs_match_trans(const substring_t *name)
@@ -110,6 +107,7 @@ static int __init init_p9(void)
 
         p9_error_init();
         printk(KERN_INFO "Installing 9P2000 support\n");
+        p9_trans_fd_init();
 
         return ret;
 }
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index f624dff76852..4507f744f44e 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -47,12 +47,29 @@
 #define SCHED_TIMEOUT   10
 #define MAXPOLLWADDR    2
 
+/**
+ * struct p9_fd_opts - per-transport options
+ * @rfd: file descriptor for reading (trans=fd)
+ * @wfd: file descriptor for writing (trans=fd)
+ * @port: port to connect to (trans=tcp)
+ *
+ */
+
 struct p9_fd_opts {
         int rfd;
         int wfd;
         u16 port;
 };
 
+
+/**
+ * struct p9_trans_fd - transport state
+ * @rd: reference to file to read from
+ * @wr: reference of file to write to
+ * @conn: connection state reference
+ *
+ */
+
 struct p9_trans_fd {
         struct file *rd;
         struct file *wr;
@@ -90,10 +107,24 @@ enum {
 };
 
 struct p9_req;
-
 typedef void (*p9_conn_req_callback)(struct p9_req *req, void *a);
+
+/**
+ * struct p9_req - fd mux encoding of an rpc transaction
+ * @lock: protects req_list
+ * @tag: numeric tag for rpc transaction
+ * @tcall: request &p9_fcall structure
+ * @rcall: response &p9_fcall structure
+ * @err: error state
+ * @cb: callback for when response is received
+ * @cba: argument to pass to callback
+ * @flush: flag to indicate RPC has been flushed
+ * @req_list: list link for higher level objects to chain requests
+ *
+ */
+
 struct p9_req {
-        spinlock_t lock; /* protect request structure */
+        spinlock_t lock;
         int tag;
         struct p9_fcall *tcall;
         struct p9_fcall *rcall;
@@ -104,7 +135,39 @@ struct p9_req {
         struct list_head req_list;
 };
 
-struct p9_mux_poll_task;
+struct p9_mux_poll_task {
+        struct task_struct *task;
+        struct list_head mux_list;
+        int muxnum;
+};
+
+/**
+ * struct p9_conn - fd mux connection state information
+ * @lock: protects mux_list (?)
+ * @mux_list: list link for mux to manage multiple connections (?)
+ * @poll_task: task polling on this connection
+ * @msize: maximum size for connection (dup)
+ * @extended: 9p2000.u flag (dup)
+ * @trans: reference to transport instance for this connection
+ * @tagpool: id accounting for transactions
+ * @err: error state
+ * @equeue: event wait_q (?)
+ * @req_list: accounting for requests which have been sent
+ * @unsent_req_list: accounting for requests that haven't been sent
+ * @rcall: current response &p9_fcall structure
+ * @rpos: read position in current frame
+ * @rbuf: current read buffer
+ * @wpos: write position for current frame
+ * @wsize: amount of data to write for current frame
+ * @wbuf: current write buffer
+ * @poll_wait: array of wait_q's for various worker threads
+ * @poll_waddr: ????
+ * @pt: poll state
+ * @rq: current read work
+ * @wq: current write work
+ * @wsched: ????
+ *
+ */
 
 struct p9_conn {
         spinlock_t lock; /* protect lock structure */
@@ -132,11 +195,16 @@ struct p9_conn {
         unsigned long wsched;
 };
 
-struct p9_mux_poll_task {
-        struct task_struct *task;
-        struct list_head mux_list;
-        int muxnum;
-};
+/**
+ * struct p9_mux_rpc - fd mux rpc accounting structure
+ * @m: connection this request was issued on
+ * @err: error state
+ * @tcall: request &p9_fcall
+ * @rcall: response &p9_fcall
+ * @wqueue: wait queue that client is blocked on for this rpc
+ *
+ * Bug: isn't this information duplicated elsewhere like &p9_req
+ */
 
 struct p9_mux_rpc {
         struct p9_conn *m;
@@ -207,10 +275,12 @@ static void p9_mux_put_tag(struct p9_conn *m, u16 tag)
 
 /**
  * p9_mux_calc_poll_procs - calculates the number of polling procs
- * based on the number of mounted v9fs filesystems.
+ * @muxnum: number of mounts
  *
+ * Calculation is based on the number of mounted v9fs filesystems.
  * The current implementation returns sqrt of the number of mounts.
  */
+
 static int p9_mux_calc_poll_procs(int muxnum)
 {
         int n;
@@ -331,12 +401,11 @@ static void p9_mux_poll_stop(struct p9_conn *m)
 
 /**
  * p9_conn_create - allocate and initialize the per-session mux data
- * Creates the polling task if this is the first session.
+ * @trans: transport structure
  *
- * @trans - transport structure
- * @msize - maximum message size
- * @extended - extended flag
+ * Note: Creates the polling task if this is the first session.
  */
+
 static struct p9_conn *p9_conn_create(struct p9_trans *trans)
 {
         int i, n;
@@ -406,7 +475,10 @@ static struct p9_conn *p9_conn_create(struct p9_trans *trans)
 
 /**
  * p9_mux_destroy - cancels all pending requests and frees mux resources
+ * @m: mux to destroy
+ *
  */
+
 static void p9_conn_destroy(struct p9_conn *m)
 {
         P9_DPRINTK(P9_DEBUG_MUX, "mux %p prev %p next %p\n", m,
@@ -429,9 +501,14 @@ static void p9_conn_destroy(struct p9_conn *m)
 }
 
 /**
- * p9_pollwait - called by files poll operation to add v9fs-poll task
- *      to files wait queue
+ * p9_pollwait - add poll task to the wait queue
+ * @filp: file pointer being polled
+ * @wait_address: wait_q to block on
+ * @p: poll state
+ *
+ * called by files poll operation to add v9fs-poll task to files wait queue
  */
+
 static void
 p9_pollwait(struct file *filp, wait_queue_head_t *wait_address, poll_table *p)
 {
@@ -462,7 +539,10 @@ p9_pollwait(struct file *filp, wait_queue_head_t *wait_address, poll_table *p)
 
 /**
  * p9_poll_mux - polls a mux and schedules read or write works if necessary
+ * @m: connection to poll
+ *
  */
+
 static void p9_poll_mux(struct p9_conn *m)
 {
         int n;
@@ -499,9 +579,14 @@ static void p9_poll_mux(struct p9_conn *m)
 }
 
 /**
- * p9_poll_proc - polls all v9fs transports for new events and queues
- *      the appropriate work to the work queue
+ * p9_poll_proc - poll worker thread
+ * @a: thread state and arguments
+ *
+ * polls all v9fs transports for new events and queues the appropriate
+ * work to the work queue
+ *
  */
+
 static int p9_poll_proc(void *a)
 {
         struct p9_conn *m, *mtmp;
@@ -527,7 +612,10 @@ static int p9_poll_proc(void *a)
 
 /**
  * p9_write_work - called when a transport can send some data
+ * @work: container for work to be done
+ *
  */
+
 static void p9_write_work(struct work_struct *work)
 {
         int n, err;
@@ -638,7 +726,10 @@ static void process_request(struct p9_conn *m, struct p9_req *req)
 
 /**
  * p9_read_work - called when there is some data to be read from a transport
+ * @work: container of work to be done
+ *
  */
+
 static void p9_read_work(struct work_struct *work)
 {
         int n, err;
@@ -793,7 +884,9 @@ error:
  * @tc: request to be sent
  * @cb: callback function to call when response is received
  * @cba: parameter to pass to the callback function
+ *
  */
+
 static struct p9_req *p9_send_request(struct p9_conn *m,
                                           struct p9_fcall *tc,
                                           p9_conn_req_callback cb, void *cba)
@@ -961,10 +1054,12 @@ p9_conn_rpc_cb(struct p9_req *req, void *a)
 /**
  * p9_fd_rpc- sends 9P request and waits until a response is available.
  *      The function can be interrupted.
- * @m: mux data
+ * @t: transport data
  * @tc: request to be sent
  * @rc: pointer where a pointer to the response is stored
+ *
  */
+
 int
 p9_fd_rpc(struct p9_trans *t, struct p9_fcall *tc, struct p9_fcall **rc)
 {
@@ -1041,8 +1136,10 @@ p9_fd_rpc(struct p9_trans *t, struct p9_fcall *tc, struct p9_fcall **rc)
  * @m: mux data
  * @tc: request to be sent
  * @cb: callback function to be called when response arrives
- * @cba: value to pass to the callback function
+ * @a: value to pass to the callback function
+ *
  */
+
 int p9_conn_rpcnb(struct p9_conn *m, struct p9_fcall *tc,
                    p9_conn_req_callback cb, void *a)
 {
@@ -1065,7 +1162,9 @@ int p9_conn_rpcnb(struct p9_conn *m, struct p9_fcall *tc,
  * p9_conn_cancel - cancel all pending requests with error
  * @m: mux data
  * @err: error code
+ *
  */
+
 void p9_conn_cancel(struct p9_conn *m, int err)
 {
         struct p9_req *req, *rtmp;
@@ -1097,35 +1196,46 @@ void p9_conn_cancel(struct p9_conn *m, int err)
 }
 
 /**
- * v9fs_parse_options - parse mount options into session structure
+ * parse_options - parse mount options into session structure
  * @options: options string passed from mount
- * @v9ses: existing v9fs session information
+ * @opts: transport-specific structure to parse options into
  *
+ * Returns 0 upon success, -ERRNO upon failure
  */
 
-static void parse_opts(char *options, struct p9_fd_opts *opts)
+static int parse_opts(char *params, struct p9_fd_opts *opts)
 {
         char *p;
         substring_t args[MAX_OPT_ARGS];
         int option;
+        char *options;
         int ret;
 
         opts->port = P9_PORT;
         opts->rfd = ~0;
         opts->wfd = ~0;
 
-        if (!options)
-                return;
+        if (!params)
+                return 0;
+
+        options = kstrdup(params, GFP_KERNEL);
+        if (!options) {
+                P9_DPRINTK(P9_DEBUG_ERROR,
+                                "failed to allocate copy of option string\n");
+                return -ENOMEM;
+        }
 
         while ((p = strsep(&options, ",")) != NULL) {
                 int token;
+                int r;
                 if (!*p)
                         continue;
                 token = match_token(p, tokens, args);
-                ret = match_int(&args[0], &option);
-                if (ret < 0) {
+                r = match_int(&args[0], &option);
+                if (r < 0) {
                         P9_DPRINTK(P9_DEBUG_ERROR,
                          "integer field, but no integer?\n");
+                        ret = r;
                         continue;
                 }
                 switch (token) {
@@ -1142,6 +1252,8 @@ static void parse_opts(char *options, struct p9_fd_opts *opts)
                         continue;
                 }
         }
+        kfree(options);
+        return 0;
 }
 
 static int p9_fd_open(struct p9_trans *trans, int rfd, int wfd)
@@ -1193,11 +1305,12 @@ static int p9_socket_open(struct p9_trans *trans, struct socket *csocket)
 
 /**
  * p9_fd_read- read from a fd
- * @v9ses: session information
+ * @trans: transport instance state
  * @v: buffer to receive data into
  * @len: size of receive buffer
  *
  */
+
 static int p9_fd_read(struct p9_trans *trans, void *v, int len)
 {
         int ret;
@@ -1220,11 +1333,12 @@ static int p9_fd_read(struct p9_trans *trans, void *v, int len)
 
 /**
  * p9_fd_write - write to a socket
- * @v9ses: session information
+ * @trans: transport instance state
  * @v: buffer to send data from
  * @len: size of send buffer
  *
  */
+
 static int p9_fd_write(struct p9_trans *trans, void *v, int len)
 {
         int ret;
@@ -1296,6 +1410,7 @@ end:
  * @trans: private socket structure
  *
  */
+
 static void p9_fd_close(struct p9_trans *trans)
 {
         struct p9_trans_fd *ts;
@@ -1318,6 +1433,23 @@ static void p9_fd_close(struct p9_trans *trans)
         kfree(ts);
 }
 
+/*
+ * stolen from NFS - maybe should be made a generic function?
+ */
+static inline int valid_ipaddr4(const char *buf)
+{
+        int rc, count, in[4];
+
+        rc = sscanf(buf, "%d.%d.%d.%d", &in[0], &in[1], &in[2], &in[3]);
+        if (rc != 4)
+                return -EINVAL;
+        for (count = 0; count < 4; count++) {
+                if (in[count] > 255)
+                        return -EINVAL;
+        }
+        return 0;
+}
+
 static struct p9_trans *
 p9_trans_create_tcp(const char *addr, char *args, int msize, unsigned char dotu)
 {
@@ -1328,7 +1460,12 @@ p9_trans_create_tcp(const char *addr, char *args, int msize, unsigned char dotu)
         struct p9_fd_opts opts;
         struct p9_trans_fd *p;
 
-        parse_opts(args, &opts);
+        err = parse_opts(args, &opts);
+        if (err < 0)
+                return ERR_PTR(err);
+
+        if (valid_ipaddr4(addr) < 0)
+                return ERR_PTR(-EINVAL);
 
         csocket = NULL;
         trans = kmalloc(sizeof(struct p9_trans), GFP_KERNEL);
@@ -1508,7 +1645,7 @@ static struct p9_trans_module p9_fd_trans = {
         .create = p9_trans_create_fd,
 };
 
-static int __init p9_trans_fd_init(void)
+int p9_trans_fd_init(void)
 {
         int ret = p9_mux_global_init();
         if (ret) {
@@ -1522,9 +1659,4 @@ static int __init p9_trans_fd_init(void)
 
         return 0;
 }
-
-module_init(p9_trans_fd_init);
-
-MODULE_AUTHOR("Latchesar Ionkov <lucho@ionkov.net>");
-MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
-MODULE_LICENSE("GPL");
+EXPORT_SYMBOL(p9_trans_fd_init);
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index de7a9f532edc..42adc052b149 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -49,29 +49,75 @@
 #define VIRTQUEUE_NUM   128
 
 /* a single mutex to manage channel initialization and attachment */
-static DECLARE_MUTEX(virtio_9p_lock);
+static DEFINE_MUTEX(virtio_9p_lock);
 /* global which tracks highest initialized channel */
 static int chan_index;
 
 #define P9_INIT_MAXTAG  16
 
-#define REQ_STATUS_IDLE 0
-#define REQ_STATUS_SENT 1
-#define REQ_STATUS_RCVD 2
-#define REQ_STATUS_FLSH 3
+
+/**
+ * enum p9_req_status_t - virtio request status
+ * @REQ_STATUS_IDLE: request slot unused
+ * @REQ_STATUS_SENT: request sent to server
+ * @REQ_STATUS_RCVD: response received from server
+ * @REQ_STATUS_FLSH: request has been flushed
+ *
+ * The @REQ_STATUS_IDLE state is used to mark a request slot as unused
+ * but use is actually tracked by the idpool structure which handles tag
+ * id allocation.
+ *
+ */
+
+enum p9_req_status_t {
+        REQ_STATUS_IDLE,
+        REQ_STATUS_SENT,
+        REQ_STATUS_RCVD,
+        REQ_STATUS_FLSH,
+};
+
+/**
+ * struct p9_req_t - virtio request slots
+ * @status: status of this request slot
+ * @wq: wait_queue for the client to block on for this request
+ *
+ * The virtio transport uses an array to track outstanding requests
+ * instead of a list.  While this may incurr overhead during initial
+ * allocation or expansion, it makes request lookup much easier as the
+ * tag id is a index into an array.  (We use tag+1 so that we can accomodate
+ * the -1 tag for the T_VERSION request).
+ * This also has the nice effect of only having to allocate wait_queues
+ * once, instead of constantly allocating and freeing them.  Its possible
+ * other resources could benefit from this scheme as well.
+ *
+ */
 
 struct p9_req_t {
         int status;
         wait_queue_head_t *wq;
 };
 
-/* We keep all per-channel information in a structure.
+/**
+ * struct virtio_chan - per-instance transport information
+ * @initialized: whether the channel is initialized
+ * @inuse: whether the channel is in use
+ * @lock: protects multiple elements within this structure
+ * @vdev: virtio dev associated with this channel
+ * @vq: virtio queue associated with this channel
+ * @tagpool: accounting for tag ids (and request slots)
+ * @reqs: array of request slots
+ * @max_tag: current number of request_slots allocated
+ * @sg: scatter gather list which is used to pack a request (protected?)
+ *
+ * We keep all per-channel information in a structure.
  * This structure is allocated within the devices dev->mem space.
  * A pointer to the structure will get put in the transport private.
+ *
  */
+
 static struct virtio_chan {
-        bool initialized;               /* channel is initialized */
-        bool inuse;                     /* channel is in use */
+        bool initialized;
+        bool inuse;
 
         spinlock_t lock;
 
@@ -86,7 +132,19 @@ static struct virtio_chan {
         struct scatterlist sg[VIRTQUEUE_NUM];
 } channels[MAX_9P_CHAN];
 
-/* Lookup requests by tag */
+/**
+ * p9_lookup_tag - Lookup requests by tag
+ * @c: virtio channel to lookup tag within
+ * @tag: numeric id for transaction
+ *
+ * this is a simple array lookup, but will grow the
+ * request_slots as necessary to accomodate transaction
+ * ids which did not previously have a slot.
+ *
+ * Bugs: there is currently no upper limit on request slots set
+ * here, but that should be constrained by the id accounting.
+ */
+
 static struct p9_req_t *p9_lookup_tag(struct virtio_chan *c, u16 tag)
 {
         /* This looks up the original request by tag so we know which
@@ -130,11 +188,20 @@ static unsigned int rest_of_page(void *data)
         return PAGE_SIZE - ((unsigned long)data % PAGE_SIZE);
 }
 
+/**
+ * p9_virtio_close - reclaim resources of a channel
+ * @trans: transport state
+ *
+ * This reclaims a channel by freeing its resources and
+ * reseting its inuse flag.
+ *
+ */
+
 static void p9_virtio_close(struct p9_trans *trans)
 {
         struct virtio_chan *chan = trans->priv;
         int count;
-        unsigned int flags;
+        unsigned long flags;
 
         spin_lock_irqsave(&chan->lock, flags);
         p9_idpool_destroy(chan->tagpool);
@@ -144,13 +211,26 @@ static void p9_virtio_close(struct p9_trans *trans)
         chan->max_tag = 0;
         spin_unlock_irqrestore(&chan->lock, flags);
 
-        down(&virtio_9p_lock);
+        mutex_lock(&virtio_9p_lock);
         chan->inuse = false;
-        up(&virtio_9p_lock);
+        mutex_unlock(&virtio_9p_lock);
 
         kfree(trans);
 }
 
+/**
+ * req_done - callback which signals activity from the server
+ * @vq: virtio queue activity was received on
+ *
+ * This notifies us that the server has triggered some activity
+ * on the virtio channel - most likely a response to request we
+ * sent.  Figure out which requests now have responses and wake up
+ * those threads.
+ *
+ * Bugs: could do with some additional sanity checking, but appears to work.
+ *
+ */
+
 static void req_done(struct virtqueue *vq)
 {
         struct virtio_chan *chan = vq->vdev->priv;
@@ -169,6 +249,20 @@ static void req_done(struct virtqueue *vq)
         spin_unlock_irqrestore(&chan->lock, flags);
 }
 
+/**
+ * pack_sg_list - pack a scatter gather list from a linear buffer
+ * @sg: scatter/gather list to pack into
+ * @start: which segment of the sg_list to start at
+ * @limit: maximum segment to pack data to
+ * @data: data to pack into scatter/gather list
+ * @count: amount of data to pack into the scatter/gather list
+ *
+ * sg_lists have multiple segments of various sizes.  This will pack
+ * arbitrary data into an existing scatter gather list, segmenting the
+ * data as necessary within constraints.
+ *
+ */
+
 static int
 pack_sg_list(struct scatterlist *sg, int start, int limit, char *data,
                                                                 int count)
@@ -189,6 +283,14 @@ pack_sg_list(struct scatterlist *sg, int start, int limit, char *data,
         return index-start;
 }
 
+/**
+ * p9_virtio_rpc - issue a request and wait for a response
+ * @t: transport state
+ * @tc: &p9_fcall request to transmit
+ * @rc: &p9_fcall to put reponse into
+ *
+ */
+
 static int
 p9_virtio_rpc(struct p9_trans *t, struct p9_fcall *tc, struct p9_fcall **rc)
 {
@@ -263,16 +365,26 @@ p9_virtio_rpc(struct p9_trans *t, struct p9_fcall *tc, struct p9_fcall **rc)
         return 0;
 }
 
+/**
+ * p9_virtio_probe - probe for existence of 9P virtio channels
+ * @vdev: virtio device to probe
+ *
+ * This probes for existing virtio channels.  At present only
+ * a single channel is in use, so in the future more work may need
+ * to be done here.
+ *
+ */
+
 static int p9_virtio_probe(struct virtio_device *vdev)
 {
         int err;
         struct virtio_chan *chan;
         int index;
 
-        down(&virtio_9p_lock);
+        mutex_lock(&virtio_9p_lock);
         index = chan_index++;
         chan = &channels[index];
-        up(&virtio_9p_lock);
+        mutex_unlock(&virtio_9p_lock);
 
         if (chan_index > MAX_9P_CHAN) {
                 printk(KERN_ERR "9p: virtio: Maximum channels exceeded\n");
@@ -301,17 +413,34 @@ static int p9_virtio_probe(struct virtio_device *vdev)
 out_free_vq:
         vdev->config->del_vq(chan->vq);
 fail:
-        down(&virtio_9p_lock);
+        mutex_lock(&virtio_9p_lock);
         chan_index--;
-        up(&virtio_9p_lock);
+        mutex_unlock(&virtio_9p_lock);
         return err;
 }
 
-/* This sets up a transport channel for 9p communication.  Right now
+
+/**
+ * p9_virtio_create - allocate a new virtio channel
+ * @devname: string identifying the channel to connect to (unused)
+ * @args: args passed from sys_mount() for per-transport options (unused)
+ * @msize: requested maximum packet size
+ * @extended: 9p2000.u enabled flag
+ *
+ * This sets up a transport channel for 9p communication.  Right now
  * we only match the first available channel, but eventually we couldlook up
  * alternate channels by matching devname versus a virtio_config entry.
  * We use a simple reference count mechanism to ensure that only a single
- * mount has a channel open at a time. */
+ * mount has a channel open at a time.
+ *
+ * Bugs: doesn't allow identification of a specific channel
+ * to allocate, channels are allocated sequentially. This was
+ * a pragmatic decision to get things rolling, but ideally some
+ * way of identifying the channel to attach to would be nice
+ * if we are going to support multiple channels.
+ *
+ */
+
 static struct p9_trans *
 p9_virtio_create(const char *devname, char *args, int msize,
                                                         unsigned char extended)
@@ -320,7 +449,7 @@ p9_virtio_create(const char *devname, char *args, int msize,
         struct virtio_chan *chan = channels;
         int index = 0;
 
-        down(&virtio_9p_lock);
+        mutex_lock(&virtio_9p_lock);
         while (index < MAX_9P_CHAN) {
                 if (chan->initialized && !chan->inuse) {
                         chan->inuse = true;
@@ -330,7 +459,7 @@ p9_virtio_create(const char *devname, char *args, int msize,
                         chan = &channels[index];
                 }
         }
-        up(&virtio_9p_lock);
+        mutex_unlock(&virtio_9p_lock);
 
         if (index >= MAX_9P_CHAN) {
                 printk(KERN_ERR "9p: no channels available\n");
@@ -360,6 +489,12 @@ p9_virtio_create(const char *devname, char *args, int msize,
         return trans;
 }
 
+/**
+ * p9_virtio_remove - clean up resources associated with a virtio device
+ * @vdev: virtio device to remove
+ *
+ */
+
 static void p9_virtio_remove(struct virtio_device *vdev)
 {
         struct virtio_chan *chan = vdev->priv;
diff --git a/net/9p/util.c b/net/9p/util.c
index ef7215565d88..958fc58cd1ff 100644
--- a/net/9p/util.c
+++ b/net/9p/util.c
@@ -32,11 +32,23 @@
 #include <linux/idr.h>
 #include <net/9p/9p.h>
 
+/**
+ * struct p9_idpool - per-connection accounting for tag idpool
+ * @lock: protects the pool
+ * @pool: idr to allocate tag id from
+ *
+ */
+
 struct p9_idpool {
         spinlock_t lock;
         struct idr pool;
 };
 
+/**
+ * p9_idpool_create - create a new per-connection id pool
+ *
+ */
+
 struct p9_idpool *p9_idpool_create(void)
 {
         struct p9_idpool *p;
@@ -52,6 +64,11 @@ struct p9_idpool *p9_idpool_create(void)
 }
 EXPORT_SYMBOL(p9_idpool_create);
 
+/**
+ * p9_idpool_destroy - create a new per-connection id pool
+ * @p: idpool to destory
+ */
+
 void p9_idpool_destroy(struct p9_idpool *p)
 {
         idr_destroy(&p->pool);
@@ -61,9 +78,9 @@ EXPORT_SYMBOL(p9_idpool_destroy);
 
 /**
  * p9_idpool_get - allocate numeric id from pool
- * @p - pool to allocate from
+ * @p: pool to allocate from
  *
- * XXX - This seems to be an awful generic function, should it be in idr.c with
+ * Bugs: This seems to be an awful generic function, should it be in idr.c with
  *            the lock included in struct idr?
  */
 
@@ -71,7 +88,7 @@ int p9_idpool_get(struct p9_idpool *p)
 {
         int i = 0;
         int error;
-        unsigned int flags;
+        unsigned long flags;
 
 retry:
         if (idr_pre_get(&p->pool, GFP_KERNEL) == 0)
@@ -94,15 +111,16 @@ EXPORT_SYMBOL(p9_idpool_get);
 
 /**
  * p9_idpool_put - release numeric id from pool
- * @p - pool to allocate from
+ * @id: numeric id which is being released
+ * @p: pool to release id into
  *
- * XXX - This seems to be an awful generic function, should it be in idr.c with
+ * Bugs: This seems to be an awful generic function, should it be in idr.c with
  *            the lock included in struct idr?
  */
 
 void p9_idpool_put(int id, struct p9_idpool *p)
 {
-        unsigned int flags;
+        unsigned long flags;
         spin_lock_irqsave(&p->lock, flags);
         idr_remove(&p->pool, id);
         spin_unlock_irqrestore(&p->lock, flags);
@@ -111,11 +129,13 @@ EXPORT_SYMBOL(p9_idpool_put);
 
 /**
  * p9_idpool_check - check if the specified id is available
- * @id - id to check
- * @p - pool
+ * @id: id to check
+ * @p: pool to check
  */
+
 int p9_idpool_check(int id, struct p9_idpool *p)
 {
         return idr_find(&p->pool, id) != NULL;
 }
 EXPORT_SYMBOL(p9_idpool_check);
+
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index 9d52ebfc1962..05fafdc2eea3 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -188,10 +188,13 @@ static int br2684_xmit_vcc(struct sk_buff *skb, struct br2684_dev *brdev,
                                 return 0;
                         }
                 }
-        } else {
-                skb_push(skb, 2);
-                if (brdev->payload == p_bridged)
+        } else { /* e_vc */
+                if (brdev->payload == p_bridged) {
+                        skb_push(skb, 2);
                         memset(skb->data, 0, 2);
+                } else { /* p_routed */
+                        skb_pull(skb, ETH_HLEN);
+                }
         }
         skb_debug(skb);
 
@@ -377,11 +380,8 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb)
                                  (skb->data + 6, ethertype_ipv4,
                                   sizeof(ethertype_ipv4)) == 0)
                                 skb->protocol = __constant_htons(ETH_P_IP);
-                        else {
-                                brdev->stats.rx_errors++;
-                                dev_kfree_skb(skb);
-                                return;
-                        }
+                        else
+                                goto error;
                         skb_pull(skb, sizeof(llc_oui_ipv4));
                         skb_reset_network_header(skb);
                         skb->pkt_type = PACKET_HOST;
@@ -394,44 +394,56 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb)
                            (memcmp(skb->data, llc_oui_pid_pad, 7) == 0)) {
                         skb_pull(skb, sizeof(llc_oui_pid_pad));
                         skb->protocol = eth_type_trans(skb, net_dev);
-                } else {
-                        brdev->stats.rx_errors++;
-                        dev_kfree_skb(skb);
-                        return;
-                }
+                } else
+                        goto error;
 
-        } else {
-                /* first 2 chars should be 0 */
-                if (*((u16 *) (skb->data)) != 0) {
-                        brdev->stats.rx_errors++;
-                        dev_kfree_skb(skb);
-                        return;
+        } else { /* e_vc */
+                if (brdev->payload == p_routed) {
+                        struct iphdr *iph;
+
+                        skb_reset_network_header(skb);
+                        iph = ip_hdr(skb);
+                        if (iph->version == 4)
+                                skb->protocol = __constant_htons(ETH_P_IP);
+                        else if (iph->version == 6)
+                                skb->protocol = __constant_htons(ETH_P_IPV6);
+                        else
+                                goto error;
+                        skb->pkt_type = PACKET_HOST;
+                } else { /* p_bridged */
+                        /* first 2 chars should be 0 */
+                        if (*((u16 *) (skb->data)) != 0)
+                                goto error;
+                        skb_pull(skb, BR2684_PAD_LEN);
+                        skb->protocol = eth_type_trans(skb, net_dev);
                 }
-                skb_pull(skb, BR2684_PAD_LEN + ETH_HLEN);       /* pad, dstmac, srcmac, ethtype */
-                skb->protocol = eth_type_trans(skb, net_dev);
         }
 
 #ifdef CONFIG_ATM_BR2684_IPFILTER
-        if (unlikely(packet_fails_filter(skb->protocol, brvcc, skb))) {
-                brdev->stats.rx_dropped++;
-                dev_kfree_skb(skb);
-                return;
-        }
+        if (unlikely(packet_fails_filter(skb->protocol, brvcc, skb)))
+                goto dropped;
 #endif /* CONFIG_ATM_BR2684_IPFILTER */
         skb->dev = net_dev;
         ATM_SKB(skb)->vcc = atmvcc;     /* needed ? */
         pr_debug("received packet's protocol: %x\n", ntohs(skb->protocol));
         skb_debug(skb);
-        if (unlikely(!(net_dev->flags & IFF_UP))) {
-                /* sigh, interface is down */
-                brdev->stats.rx_dropped++;
-                dev_kfree_skb(skb);
-                return;
-        }
+        /* sigh, interface is down? */
+        if (unlikely(!(net_dev->flags & IFF_UP)))
+                goto dropped;
         brdev->stats.rx_packets++;
         brdev->stats.rx_bytes += skb->len;
         memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data));
         netif_rx(skb);
+        return;
+
+dropped:
+        brdev->stats.rx_dropped++;
+        goto free_skb;
+error:
+        brdev->stats.rx_errors++;
+free_skb:
+        dev_kfree_skb(skb);
+        return;
 }
 
 /*
@@ -518,9 +530,9 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
                 struct sk_buff *next = skb->next;
 
                 skb->next = skb->prev = NULL;
+                br2684_push(atmvcc, skb);
                 BRPRIV(skb->dev)->stats.rx_bytes -= skb->len;
                 BRPRIV(skb->dev)->stats.rx_packets--;
-                br2684_push(atmvcc, skb);
 
                 skb = next;
         }
diff --git a/net/ax25/ax25_subr.c b/net/ax25/ax25_subr.c
index d8f215733175..034aa10a5198 100644
--- a/net/ax25/ax25_subr.c
+++ b/net/ax25/ax25_subr.c
@@ -64,20 +64,15 @@ void ax25_frames_acked(ax25_cb *ax25, unsigned short nr)
 
 void ax25_requeue_frames(ax25_cb *ax25)
 {
-        struct sk_buff *skb, *skb_prev = NULL;
+        struct sk_buff *skb;
 
         /*
          * Requeue all the un-ack-ed frames on the output queue to be picked
          * up by ax25_kick called from the timer. This arrangement handles the
          * possibility of an empty output queue.
          */
-        while ((skb = skb_dequeue(&ax25->ack_queue)) != NULL) {
-                if (skb_prev == NULL)
-                        skb_queue_head(&ax25->write_queue, skb);
-                else
-                        skb_append(skb_prev, skb, &ax25->write_queue);
-                skb_prev = skb;
-        }
+        while ((skb = skb_dequeue_tail(&ax25->ack_queue)) != NULL)
+                skb_queue_head(&ax25->write_queue, skb);
 }
 
 /*
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index eb62558e9b09..0c2c93735e93 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -423,8 +423,8 @@ static int __rfcomm_dlc_close(struct rfcomm_dlc *d, int err)
 
                 rfcomm_dlc_lock(d);
                 d->state = BT_CLOSED;
-                rfcomm_dlc_unlock(d);
                 d->state_change(d, err);
+                rfcomm_dlc_unlock(d);
 
                 skb_queue_purge(&d->tx_queue);
                 rfcomm_dlc_unlink(d);
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index c3f749abb2d0..c9191871c1e0 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -566,11 +566,22 @@ static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err)
         if (dlc->state == BT_CLOSED) {
                 if (!dev->tty) {
                         if (test_bit(RFCOMM_RELEASE_ONHUP, &dev->flags)) {
-                                if (rfcomm_dev_get(dev->id) == NULL)
+                                /* Drop DLC lock here to avoid deadlock
+                                 * 1. rfcomm_dev_get will take rfcomm_dev_lock
+                                 *    but in rfcomm_dev_add there's lock order:
+                                 *    rfcomm_dev_lock -> dlc lock
+                                 * 2. rfcomm_dev_put will deadlock if it's
+                                 *    the last reference
+                                 */
+                                rfcomm_dlc_unlock(dlc);
+                                if (rfcomm_dev_get(dev->id) == NULL) {
+                                        rfcomm_dlc_lock(dlc);
                                         return;
+                                }
 
                                 rfcomm_dev_del(dev);
                                 rfcomm_dev_put(dev);
+                                rfcomm_dlc_lock(dlc);
                         }
                 } else
                         tty_hangup(dev->tty);
diff --git a/net/core/dev.c b/net/core/dev.c
index a1607bc0cd4c..fca23a3bf12c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -119,6 +119,7 @@
 #include <linux/err.h>
 #include <linux/ctype.h>
 #include <linux/if_arp.h>
+#include <linux/if_vlan.h>
 
 #include "net-sysfs.h"
 
@@ -453,7 +454,7 @@ static int netdev_boot_setup_add(char *name, struct ifmap *map)
         for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
                 if (s[i].name[0] == '\0' || s[i].name[0] == ' ') {
                         memset(s[i].name, 0, sizeof(s[i].name));
-                        strcpy(s[i].name, name);
+                        strlcpy(s[i].name, name, IFNAMSIZ);
                         memcpy(&s[i].map, map, sizeof(s[i].map));
                         break;
                 }
@@ -478,7 +479,7 @@ int netdev_boot_setup_check(struct net_device *dev)
 
         for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
                 if (s[i].name[0] != '\0' && s[i].name[0] != ' ' &&
-                    !strncmp(dev->name, s[i].name, strlen(s[i].name))) {
+                    !strcmp(dev->name, s[i].name)) {
                         dev->irq        = s[i].map.irq;
                         dev->base_addr  = s[i].map.base_addr;
                         dev->mem_start  = s[i].map.mem_start;
@@ -903,7 +904,11 @@ int dev_change_name(struct net_device *dev, char *newname)
                 strlcpy(dev->name, newname, IFNAMSIZ);
 
 rollback:
-        device_rename(&dev->dev, dev->name);
+        err = device_rename(&dev->dev, dev->name);
+        if (err) {
+                memcpy(dev->name, oldname, IFNAMSIZ);
+                return err;
+        }
 
         write_lock_bh(&dev_base_lock);
         hlist_del(&dev->name_hlist);
@@ -1358,6 +1363,29 @@ void netif_device_attach(struct net_device *dev)
 }
 EXPORT_SYMBOL(netif_device_attach);
 
+static bool can_checksum_protocol(unsigned long features, __be16 protocol)
+{
+        return ((features & NETIF_F_GEN_CSUM) ||
+                ((features & NETIF_F_IP_CSUM) &&
+                 protocol == htons(ETH_P_IP)) ||
+                ((features & NETIF_F_IPV6_CSUM) &&
+                 protocol == htons(ETH_P_IPV6)));
+}
+
+static bool dev_can_checksum(struct net_device *dev, struct sk_buff *skb)
+{
+        if (can_checksum_protocol(dev->features, skb->protocol))
+                return true;
+
+        if (skb->protocol == htons(ETH_P_8021Q)) {
+                struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
+                if (can_checksum_protocol(dev->features & dev->vlan_features,
+                                          veh->h_vlan_encapsulated_proto))
+                        return true;
+        }
+
+        return false;
+}
 
 /*
  * Invalidate hardware checksum when packet is to be mangled, and
@@ -1636,14 +1664,8 @@ int dev_queue_xmit(struct sk_buff *skb)
         if (skb->ip_summed == CHECKSUM_PARTIAL) {
                 skb_set_transport_header(skb, skb->csum_start -
                                               skb_headroom(skb));
-
-                if (!(dev->features & NETIF_F_GEN_CSUM) &&
-                    !((dev->features & NETIF_F_IP_CSUM) &&
-                      skb->protocol == htons(ETH_P_IP)) &&
-                    !((dev->features & NETIF_F_IPV6_CSUM) &&
-                      skb->protocol == htons(ETH_P_IPV6)))
-                        if (skb_checksum_help(skb))
-                                goto out_kfree_skb;
+                if (!dev_can_checksum(dev, skb) && skb_checksum_help(skb))
+                        goto out_kfree_skb;
         }
 
 gso:
@@ -2055,6 +2077,10 @@ int netif_receive_skb(struct sk_buff *skb)
 
         rcu_read_lock();
 
+        /* Don't receive packets in an exiting network namespace */
+        if (!net_alive(dev_net(skb->dev)))
+                goto out;
+
 #ifdef CONFIG_NET_CLS_ACT
         if (skb->tc_verd & TC_NCLS) {
                 skb->tc_verd = CLR_TC_NCLS(skb->tc_verd);
@@ -2947,7 +2973,7 @@ EXPORT_SYMBOL(dev_unicast_delete);
 /**
  *      dev_unicast_add         - add a secondary unicast address
  *      @dev: device
- *      @addr: address to delete
+ *      @addr: address to add
  *      @alen: length of @addr
  *
  *      Add a secondary unicast address to the device or increase
@@ -3137,7 +3163,7 @@ int dev_change_flags(struct net_device *dev, unsigned flags)
          *      Load in the correct multicast list now the flags have changed.
          */
 
-        if (dev->change_rx_flags && (dev->flags ^ flags) & IFF_MULTICAST)
+        if (dev->change_rx_flags && (old_flags ^ flags) & IFF_MULTICAST)
                 dev->change_rx_flags(dev, IFF_MULTICAST);
 
         dev_set_rx_mode(dev);
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index e3e9ab0f74e3..277a2302eb3a 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -226,7 +226,7 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
         ops = lookup_rules_ops(net, frh->family);
         if (ops == NULL) {
-                err = EAFNOSUPPORT;
+                err = -EAFNOSUPPORT;
                 goto errout;
         }
 
@@ -365,7 +365,7 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
         ops = lookup_rules_ops(net, frh->family);
         if (ops == NULL) {
-                err = EAFNOSUPPORT;
+                err = -EAFNOSUPPORT;
                 goto errout;
         }
 
diff --git a/net/core/filter.c b/net/core/filter.c
index 4f8369729a4e..df3744355839 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -68,7 +68,6 @@ static inline void *load_pointer(struct sk_buff *skb, int k,
  *      sk_filter - run a packet through a socket filter
  *      @sk: sock associated with &sk_buff
  *      @skb: buffer to filter
- *      @needlock: set to 1 if the sock is not locked by caller.
  *
  * Run the filter code and then cut skb->data to correct size returned by
  * sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 5d9d7130bd6e..65f01f71b3f3 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1714,7 +1714,8 @@ static int neightbl_fill_parms(struct sk_buff *skb, struct neigh_parms *parms)
         return nla_nest_end(skb, nest);
 
 nla_put_failure:
-        return nla_nest_cancel(skb, nest);
+        nla_nest_cancel(skb, nest);
+        return -EMSGSIZE;
 }
 
 static int neightbl_fill_info(struct sk_buff *skb, struct neigh_table *tbl,
@@ -2057,9 +2058,9 @@ static int neigh_fill_info(struct sk_buff *skb, struct neighbour *neigh,
                 goto nla_put_failure;
         }
 
-        ci.ndm_used      = now - neigh->used;
-        ci.ndm_confirmed = now - neigh->confirmed;
-        ci.ndm_updated   = now - neigh->updated;
+        ci.ndm_used      = jiffies_to_clock_t(now - neigh->used);
+        ci.ndm_confirmed = jiffies_to_clock_t(now - neigh->confirmed);
+        ci.ndm_updated   = jiffies_to_clock_t(now - neigh->updated);
         ci.ndm_refcnt    = atomic_read(&neigh->refcnt) - 1;
         read_unlock_bh(&neigh->lock);
 
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 72b4c184dd84..7c52fe277b62 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -140,6 +140,9 @@ static void cleanup_net(struct work_struct *work)
         struct pernet_operations *ops;
         struct net *net;
 
+        /* Be very certain incoming network packets will not find us */
+        rcu_barrier();
+
         net = container_of(work, struct net, work);
 
         mutex_lock(&net_mutex);
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index b04d643fc3c7..8fb134da0346 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -419,7 +419,7 @@ static void arp_reply(struct sk_buff *skb)
                 return;
 
         size = arp_hdr_len(skb->dev);
-        send_skb = find_skb(np, size + LL_RESERVED_SPACE(np->dev),
+        send_skb = find_skb(np, size + LL_ALLOCATED_SPACE(np->dev),
                             LL_RESERVED_SPACE(np->dev));
 
         if (!send_skb)
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 8dca21110493..fdf537707e51 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -390,6 +390,7 @@ struct pktgen_thread {
         int cpu;
 
         wait_queue_head_t queue;
+        struct completion start_done;
 };
 
 #define REMOVE 1
@@ -3414,6 +3415,7 @@ static int pktgen_thread_worker(void *arg)
         BUG_ON(smp_processor_id() != cpu);
 
         init_waitqueue_head(&t->queue);
+        complete(&t->start_done);
 
         pr_debug("pktgen: starting pktgen/%d:  pid=%d\n", cpu, task_pid_nr(current));
 
@@ -3615,6 +3617,7 @@ static int __init pktgen_create_thread(int cpu)
         INIT_LIST_HEAD(&t->if_list);
 
         list_add_tail(&t->th_list, &pktgen_threads);
+        init_completion(&t->start_done);
 
         p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu);
         if (IS_ERR(p)) {
@@ -3639,6 +3642,7 @@ static int __init pktgen_create_thread(int cpu)
         }
 
         wake_up_process(p);
+        wait_for_completion(&t->start_done);
 
         return 0;
 }
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index cf857c4dc7b1..a9a77216310e 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -498,7 +498,8 @@ int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics)
         return nla_nest_end(skb, mx);
 
 nla_put_failure:
-        return nla_nest_cancel(skb, mx);
+        nla_nest_cancel(skb, mx);
+        return -EMSGSIZE;
 }
 
 int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 5c459f2b7985..366621610e76 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1292,12 +1292,14 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
 {
         unsigned int nr_pages = spd->nr_pages;
         unsigned int poff, plen, len, toff, tlen;
-        int headlen, seg;
+        int headlen, seg, error = 0;
 
         toff = *offset;
         tlen = *total_len;
-        if (!tlen)
+        if (!tlen) {
+                error = 1;
                 goto err;
+        }
 
         /*
          * if the offset is greater than the linear part, go directly to
@@ -1339,7 +1341,8 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
                  * just jump directly to update and return, no point
                  * in going over fragments when the output is full.
                  */
-                if (spd_fill_page(spd, virt_to_page(p), plen, poff, skb))
+                error = spd_fill_page(spd, virt_to_page(p), plen, poff, skb);
+                if (error)
                         goto done;
 
                 tlen -= plen;
@@ -1369,7 +1372,8 @@ map_frag:
                 if (!plen)
                         break;
 
-                if (spd_fill_page(spd, f->page, plen, poff, skb))
+                error = spd_fill_page(spd, f->page, plen, poff, skb);
+                if (error)
                         break;
 
                 tlen -= plen;
@@ -1382,7 +1386,10 @@ done:
                 return 0;
         }
 err:
-        return 1;
+        /* update the offset to reflect the linear part skip, if any */
+        if (!error)
+                *offset = toff;
+        return error;
 }
 
 /*
@@ -1445,6 +1452,7 @@ done:
 
         if (spd.nr_pages) {
                 int ret;
+                struct sock *sk = __skb->sk;
 
                 /*
                  * Drop the socket lock, otherwise we have reverse
@@ -1455,9 +1463,9 @@ done:
                  * we call into ->sendpage() with the i_mutex lock held
                  * and networking will grab the socket lock.
                  */
-                release_sock(__skb->sk);
+                release_sock(sk);
                 ret = splice_to_pipe(pipe, &spd);
-                lock_sock(__skb->sk);
+                lock_sock(sk);
                 return ret;
         }
 
diff --git a/net/core/sock.c b/net/core/sock.c
index fa76f04fa9c6..88094cb09c06 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -270,7 +270,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
         int err = 0;
         int skb_len;
 
-        /* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
+        /* Cast sk->rcvbuf to unsigned... It's pointless, but reduces
            number of warnings when compiling with -W --ANK
          */
         if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
diff --git a/net/core/user_dma.c b/net/core/user_dma.c
index 0ad1cd57bc39..c77aff9c6eb3 100644
--- a/net/core/user_dma.c
+++ b/net/core/user_dma.c
@@ -75,7 +75,7 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
 
                 end = start + skb_shinfo(skb)->frags[i].size;
                 copy = end - offset;
-                if ((copy = end - offset) > 0) {
+                if (copy > 0) {
                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
                         struct page *page = frag->page;
 
diff --git a/net/dccp/ackvec.c b/net/dccp/ackvec.c
index 6de4bd195d28..1e8be246ad15 100644
--- a/net/dccp/ackvec.c
+++ b/net/dccp/ackvec.c
@@ -290,12 +290,12 @@ int dccp_ackvec_add(struct dccp_ackvec *av, const struct sock *sk,
 
                 while (1) {
                         const u8 len = dccp_ackvec_len(av, index);
-                        const u8 state = dccp_ackvec_state(av, index);
+                        const u8 av_state = dccp_ackvec_state(av, index);
                         /*
                          * valid packets not yet in av_buf have a reserved
                          * entry, with a len equal to 0.
                          */
-                        if (state == DCCP_ACKVEC_STATE_NOT_RECEIVED &&
+                        if (av_state == DCCP_ACKVEC_STATE_NOT_RECEIVED &&
                             len == 0 && delta == 0) { /* Found our
                                                          reserved seat! */
                                 dccp_pr_debug("Found %llu reserved seat!\n",
@@ -325,31 +325,6 @@ out_duplicate:
         return -EILSEQ;
 }
 
-#ifdef CONFIG_IP_DCCP_DEBUG
-void dccp_ackvector_print(const u64 ackno, const unsigned char *vector, int len)
-{
-        dccp_pr_debug_cat("ACK vector len=%d, ackno=%llu |", len,
-                         (unsigned long long)ackno);
-
-        while (len--) {
-                const u8 state = (*vector & DCCP_ACKVEC_STATE_MASK) >> 6;
-                const u8 rl = *vector & DCCP_ACKVEC_LEN_MASK;
-
-                dccp_pr_debug_cat("%d,%d|", state, rl);
-                ++vector;
-        }
-
-        dccp_pr_debug_cat("\n");
-}
-
-void dccp_ackvec_print(const struct dccp_ackvec *av)
-{
-        dccp_ackvector_print(av->av_buf_ackno,
-                             av->av_buf + av->av_buf_head,
-                             av->av_vec_len);
-}
-#endif
-
 static void dccp_ackvec_throw_record(struct dccp_ackvec *av,
                                      struct dccp_ackvec_record *avr)
 {
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index cd61dea2eea1..a1929f33d703 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -159,8 +159,8 @@ static void ccid3_hc_tx_update_x(struct sock *sk, ktime_t *stamp)
         } else if (ktime_us_delta(now, hctx->ccid3hctx_t_ld)
                                 - (s64)hctx->ccid3hctx_rtt >= 0) {
 
-                hctx->ccid3hctx_x =
-                        max(min(2 * hctx->ccid3hctx_x, min_rate),
+                hctx->ccid3hctx_x = min(2 * hctx->ccid3hctx_x, min_rate);
+                hctx->ccid3hctx_x = max(hctx->ccid3hctx_x,
                             scaled_div(((__u64)hctx->ccid3hctx_s) << 6,
                                        hctx->ccid3hctx_rtt));
                 hctx->ccid3hctx_t_ld = now;
@@ -193,22 +193,17 @@ static inline void ccid3_hc_tx_update_s(struct ccid3_hc_tx_sock *hctx, int len)
 
 /*
  *      Update Window Counter using the algorithm from [RFC 4342, 8.1].
- *      The algorithm is not applicable if RTT < 4 microseconds.
+ *      As elsewhere, RTT > 0 is assumed by using dccp_sample_rtt().
  */
 static inline void ccid3_hc_tx_update_win_count(struct ccid3_hc_tx_sock *hctx,
                                                 ktime_t now)
 {
-        u32 quarter_rtts;
-
-        if (unlikely(hctx->ccid3hctx_rtt < 4))  /* avoid divide-by-zero */
-                return;
-
-        quarter_rtts = ktime_us_delta(now, hctx->ccid3hctx_t_last_win_count);
-        quarter_rtts /= hctx->ccid3hctx_rtt / 4;
+        u32 delta = ktime_us_delta(now, hctx->ccid3hctx_t_last_win_count),
+            quarter_rtts = (4 * delta) / hctx->ccid3hctx_rtt;
 
         if (quarter_rtts > 0) {
                 hctx->ccid3hctx_t_last_win_count = now;
-                hctx->ccid3hctx_last_win_count  += min_t(u32, quarter_rtts, 5);
+                hctx->ccid3hctx_last_win_count  += min(quarter_rtts, 5U);
                 hctx->ccid3hctx_last_win_count  &= 0xF;         /* mod 16 */
         }
 }
@@ -334,8 +329,14 @@ static int ccid3_hc_tx_send_packet(struct sock *sk, struct sk_buff *skb)
                         hctx->ccid3hctx_x    = rfc3390_initial_rate(sk);
                         hctx->ccid3hctx_t_ld = now;
                 } else {
-                        /* Sender does not have RTT sample: X_pps = 1 pkt/sec */
-                        hctx->ccid3hctx_x = hctx->ccid3hctx_s;
+                        /*
+                         * Sender does not have RTT sample:
+                         * - set fallback RTT (RFC 4340, 3.4) since a RTT value
+                         *   is needed in several parts (e.g.  window counter);
+                         * - set sending rate X_pps = 1pps as per RFC 3448, 4.2.
+                         */
+                        hctx->ccid3hctx_rtt = DCCP_FALLBACK_RTT;
+                        hctx->ccid3hctx_x   = hctx->ccid3hctx_s;
                         hctx->ccid3hctx_x <<= 6;
                 }
                 ccid3_update_send_interval(hctx);
diff --git a/net/dccp/ccids/lib/tfrc.c b/net/dccp/ccids/lib/tfrc.c
index d1dfbb8de64c..97ecec0a8e76 100644
--- a/net/dccp/ccids/lib/tfrc.c
+++ b/net/dccp/ccids/lib/tfrc.c
@@ -14,14 +14,6 @@ module_param(tfrc_debug, bool, 0444);
 MODULE_PARM_DESC(tfrc_debug, "Enable debug messages");
 #endif
 
-extern int  tfrc_tx_packet_history_init(void);
-extern void tfrc_tx_packet_history_exit(void);
-extern int  tfrc_rx_packet_history_init(void);
-extern void tfrc_rx_packet_history_exit(void);
-
-extern int  tfrc_li_init(void);
-extern void tfrc_li_exit(void);
-
 static int __init tfrc_module_init(void)
 {
         int rc = tfrc_li_init();
diff --git a/net/dccp/ccids/lib/tfrc.h b/net/dccp/ccids/lib/tfrc.h
index 1fb1187bbf1c..ed9857527acf 100644
--- a/net/dccp/ccids/lib/tfrc.h
+++ b/net/dccp/ccids/lib/tfrc.h
@@ -15,7 +15,7 @@
  *  (at your option) any later version.
  */
 #include <linux/types.h>
-#include <asm/div64.h>
+#include <linux/math64.h>
 #include "../../dccp.h"
 /* internal includes that this module exports: */
 #include "loss_interval.h"
@@ -29,21 +29,19 @@ extern int tfrc_debug;
 #endif
 
 /* integer-arithmetic divisions of type (a * 1000000)/b */
-static inline u64 scaled_div(u64 a, u32 b)
+static inline u64 scaled_div(u64 a, u64 b)
 {
         BUG_ON(b==0);
-        a *= 1000000;
-        do_div(a, b);
-        return a;
+        return div64_u64(a * 1000000, b);
 }
 
-static inline u32 scaled_div32(u64 a, u32 b)
+static inline u32 scaled_div32(u64 a, u64 b)
 {
         u64 result = scaled_div(a, b);
 
         if (result > UINT_MAX) {
-                DCCP_CRIT("Overflow: a(%llu)/b(%u) > ~0U",
-                          (unsigned long long)a, b);
+                DCCP_CRIT("Overflow: %llu/%llu > UINT_MAX",
+                          (unsigned long long)a, (unsigned long long)b);
                 return UINT_MAX;
         }
         return result;
@@ -58,7 +56,14 @@ static inline u32 tfrc_ewma(const u32 avg, const u32 newval, const u8 weight)
         return avg ? (weight * avg + (10 - weight) * newval) / 10 : newval;
 }
 
-extern u32 tfrc_calc_x(u16 s, u32 R, u32 p);
-extern u32 tfrc_calc_x_reverse_lookup(u32 fvalue);
+extern u32  tfrc_calc_x(u16 s, u32 R, u32 p);
+extern u32  tfrc_calc_x_reverse_lookup(u32 fvalue);
 
+extern int  tfrc_tx_packet_history_init(void);
+extern void tfrc_tx_packet_history_exit(void);
+extern int  tfrc_rx_packet_history_init(void);
+extern void tfrc_rx_packet_history_exit(void);
+
+extern int  tfrc_li_init(void);
+extern void tfrc_li_exit(void);
 #endif /* _TFRC_H_ */
diff --git a/net/dccp/ccids/lib/tfrc_equation.c b/net/dccp/ccids/lib/tfrc_equation.c
index e4e64b76c10c..2f20a29cffe4 100644
--- a/net/dccp/ccids/lib/tfrc_equation.c
+++ b/net/dccp/ccids/lib/tfrc_equation.c
@@ -661,7 +661,7 @@ u32 tfrc_calc_x(u16 s, u32 R, u32 p)
 
 EXPORT_SYMBOL_GPL(tfrc_calc_x);
 
-/*
+/**
  *  tfrc_calc_x_reverse_lookup  -  try to find p given f(p)
  *
  *  @fvalue: function value to match, scaled by 1000000
@@ -676,11 +676,11 @@ u32 tfrc_calc_x_reverse_lookup(u32 fvalue)
 
         /* Error cases. */
         if (fvalue < tfrc_calc_x_lookup[0][1]) {
-                DCCP_WARN("fvalue %d smaller than resolution\n", fvalue);
-                return tfrc_calc_x_lookup[0][1];
+                DCCP_WARN("fvalue %u smaller than resolution\n", fvalue);
+                return TFRC_SMALLEST_P;
         }
         if (fvalue > tfrc_calc_x_lookup[TFRC_CALC_X_ARRSIZE - 1][0]) {
-                DCCP_WARN("fvalue %d exceeds bounds!\n", fvalue);
+                DCCP_WARN("fvalue %u exceeds bounds!\n", fvalue);
                 return 1000000;
         }
 
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index b348dd70c685..37d27bcb361f 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -589,7 +589,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
         if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
                 goto drop;
 
-        req = reqsk_alloc(&dccp_request_sock_ops);
+        req = inet_reqsk_alloc(&dccp_request_sock_ops);
         if (req == NULL)
                 goto drop;
 
@@ -605,7 +605,6 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
         ireq = inet_rsk(req);
         ireq->loc_addr = ip_hdr(skb)->daddr;
         ireq->rmt_addr = ip_hdr(skb)->saddr;
-        ireq->opt       = NULL;
 
         /*
          * Step 3: Process LISTEN state
@@ -739,8 +738,8 @@ int dccp_invalid_packet(struct sk_buff *skb)
          * If P.type is not Data, Ack, or DataAck and P.X == 0 (the packet
          * has short sequence numbers), drop packet and return
          */
-        if (dh->dccph_type >= DCCP_PKT_DATA    &&
-            dh->dccph_type <= DCCP_PKT_DATAACK && dh->dccph_x == 0)  {
+        if ((dh->dccph_type < DCCP_PKT_DATA    ||
+            dh->dccph_type > DCCP_PKT_DATAACK) && dh->dccph_x == 0)  {
                 DCCP_WARN("P.type (%s) not Data || [Data]Ack, while P.X == 0\n",
                           dccp_packet_name(dh->dccph_type));
                 return 1;
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 9b1129bb7ece..f7fe2a572d7b 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -421,7 +421,6 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
         ireq6 = inet6_rsk(req);
         ipv6_addr_copy(&ireq6->rmt_addr, &ipv6_hdr(skb)->saddr);
         ipv6_addr_copy(&ireq6->loc_addr, &ipv6_hdr(skb)->daddr);
-        ireq6->pktopts  = NULL;
 
         if (ipv6_opt_accepted(sk, skb) ||
             np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 33ad48321b08..66dca5bba858 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -165,12 +165,12 @@ out_free:
                 /* See dccp_v4_conn_request */
                 newdmsk->dccpms_sequence_window = req->rcv_wnd;
 
-                newdp->dccps_gar = newdp->dccps_isr = dreq->dreq_isr;
-                dccp_update_gsr(newsk, dreq->dreq_isr);
-
-                newdp->dccps_iss = dreq->dreq_iss;
+                newdp->dccps_gar = newdp->dccps_iss = dreq->dreq_iss;
                 dccp_update_gss(newsk, dreq->dreq_iss);
 
+                newdp->dccps_isr = dreq->dreq_isr;
+                dccp_update_gsr(newsk, dreq->dreq_isr);
+
                 /*
                  * SWL and AWL are initially adjusted so that they are not less than
                  * the initial Sequence Numbers received and sent, respectively:
diff --git a/net/dccp/options.c b/net/dccp/options.c
index d2a84a2fecee..43bc24e761d0 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -107,9 +107,11 @@ int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
                  *
                  * CCID-specific options are ignored during connection setup, as
                  * negotiation may still be in progress (see RFC 4340, 10.3).
+                 * The same applies to Ack Vectors, as these depend on the CCID.
                  *
                  */
-                if (dreq != NULL && opt >= 128)
+                if (dreq != NULL && (opt >= 128 ||
+                    opt == DCCPO_ACK_VECTOR_0 || opt == DCCPO_ACK_VECTOR_1))
                         goto ignore_option;
 
                 switch (opt) {
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 1f8a9b64c083..fe20068c5d8e 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -508,6 +508,7 @@ void dccp_send_ack(struct sock *sk)
 
 EXPORT_SYMBOL_GPL(dccp_send_ack);
 
+#if 0
 /* FIXME: Is this still necessary (11.3) - currently nowhere used by DCCP. */
 void dccp_send_delayed_ack(struct sock *sk)
 {
@@ -538,6 +539,7 @@ void dccp_send_delayed_ack(struct sock *sk)
         icsk->icsk_ack.timeout = timeout;
         sk_reset_timer(sk, &icsk->icsk_delack_timer, timeout);
 }
+#endif
 
 void dccp_send_sync(struct sock *sk, const u64 ackno,
                     const enum dccp_pkt_type pkt_type)
diff --git a/net/dccp/probe.c b/net/dccp/probe.c
index 0bcdc9250279..81368a7f5379 100644
--- a/net/dccp/probe.c
+++ b/net/dccp/probe.c
@@ -42,7 +42,7 @@ static int bufsize = 64 * 1024;
 
 static const char procname[] = "dccpprobe";
 
-struct {
+static struct {
         struct kfifo      *fifo;
         spinlock_t        lock;
         wait_queue_head_t wait;
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 68d154480043..7c9bb13b1539 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -340,7 +340,7 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 
                 dev_hold(dev);
 
-                skb = sock_alloc_send_skb(sk, len+LL_RESERVED_SPACE(dev),
+                skb = sock_alloc_send_skb(sk, len+LL_ALLOCATED_SPACE(dev),
                                           msg->msg_flags & MSG_DONTWAIT, &err);
                 if (skb==NULL)
                         goto out_unlock;
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 68b72a7a1806..9b539fa9fe18 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -570,7 +570,7 @@ struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
          *      Allocate a buffer
          */
 
-        skb = alloc_skb(arp_hdr_len(dev) + LL_RESERVED_SPACE(dev), GFP_ATOMIC);
+        skb = alloc_skb(arp_hdr_len(dev) + LL_ALLOCATED_SPACE(dev), GFP_ATOMIC);
         if (skb == NULL)
                 return NULL;
 
@@ -1288,7 +1288,6 @@ static void arp_format_neigh_entry(struct seq_file *seq,
                                    struct neighbour *n)
 {
         char hbuffer[HBUFFERLEN];
-        const char hexbuf[] = "0123456789ABCDEF";
         int k, j;
         char tbuf[16];
         struct net_device *dev = n->dev;
@@ -1302,8 +1301,8 @@ static void arp_format_neigh_entry(struct seq_file *seq,
         else {
 #endif
         for (k = 0, j = 0; k < HBUFFERLEN - 3 && j < dev->addr_len; j++) {
-                hbuffer[k++] = hexbuf[(n->ha[j] >> 4) & 15];
-                hbuffer[k++] = hexbuf[n->ha[j] & 15];
+                hbuffer[k++] = hex_asc_hi(n->ha[j]);
+                hbuffer[k++] = hex_asc_lo(n->ha[j]);
                 hbuffer[k++] = ':';
         }
         hbuffer[--k] = 0;
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 05afb576d935..2c0e4572cc90 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -338,7 +338,7 @@ static int cipso_v4_cache_check(const unsigned char *key,
                 return -ENOENT;
 
         hash = cipso_v4_map_cache_hash(key, key_len);
-        bkt = hash & (CIPSO_V4_CACHE_BUCKETBITS - 1);
+        bkt = hash & (CIPSO_V4_CACHE_BUCKETS - 1);
         spin_lock_bh(&cipso_v4_cache[bkt].lock);
         list_for_each_entry(entry, &cipso_v4_cache[bkt].list, list) {
                 if (entry->hash == hash &&
@@ -417,7 +417,7 @@ int cipso_v4_cache_add(const struct sk_buff *skb,
         atomic_inc(&secattr->cache->refcount);
         entry->lsm_data = secattr->cache;
 
-        bkt = entry->hash & (CIPSO_V4_CACHE_BUCKETBITS - 1);
+        bkt = entry->hash & (CIPSO_V4_CACHE_BUCKETS - 1);
         spin_lock_bh(&cipso_v4_cache[bkt].lock);
         if (cipso_v4_cache[bkt].size < cipso_v4_cache_bucketsize) {
                 list_add(&entry->list, &cipso_v4_cache[bkt].list);
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 6848e4760f34..79a7ef6209ff 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -90,7 +90,6 @@ static const struct nla_policy ifa_ipv4_policy[IFA_MAX+1] = {
         [IFA_LOCAL]             = { .type = NLA_U32 },
         [IFA_ADDRESS]           = { .type = NLA_U32 },
         [IFA_BROADCAST]         = { .type = NLA_U32 },
-        [IFA_ANYCAST]           = { .type = NLA_U32 },
         [IFA_LABEL]             = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
 };
 
@@ -536,9 +535,6 @@ static struct in_ifaddr *rtm_to_ifaddr(struct net *net, struct nlmsghdr *nlh)
         if (tb[IFA_BROADCAST])
                 ifa->ifa_broadcast = nla_get_be32(tb[IFA_BROADCAST]);
 
-        if (tb[IFA_ANYCAST])
-                ifa->ifa_anycast = nla_get_be32(tb[IFA_ANYCAST]);
-
         if (tb[IFA_LABEL])
                 nla_strlcpy(ifa->ifa_label, tb[IFA_LABEL], IFNAMSIZ);
         else
@@ -745,7 +741,6 @@ int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg)
                                 break;
                         inet_del_ifa(in_dev, ifap, 0);
                         ifa->ifa_broadcast = 0;
-                        ifa->ifa_anycast = 0;
                         ifa->ifa_scope = 0;
                 }
 
@@ -1113,7 +1108,6 @@ static inline size_t inet_nlmsg_size(void)
                + nla_total_size(4) /* IFA_ADDRESS */
                + nla_total_size(4) /* IFA_LOCAL */
                + nla_total_size(4) /* IFA_BROADCAST */
-               + nla_total_size(4) /* IFA_ANYCAST */
                + nla_total_size(IFNAMSIZ); /* IFA_LABEL */
 }
 
@@ -1143,9 +1137,6 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa,
         if (ifa->ifa_broadcast)
                 NLA_PUT_BE32(skb, IFA_BROADCAST, ifa->ifa_broadcast);
 
-        if (ifa->ifa_anycast)
-                NLA_PUT_BE32(skb, IFA_ANYCAST, ifa->ifa_anycast);
-
         if (ifa->ifa_label[0])
                 NLA_PUT_STRING(skb, IFA_LABEL, ifa->ifa_label);
 
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 0f1557a4ac7a..0b2ac6a3d903 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -506,7 +506,6 @@ const struct nla_policy rtm_ipv4_policy[RTA_MAX+1] = {
         [RTA_PREFSRC]           = { .type = NLA_U32 },
         [RTA_METRICS]           = { .type = NLA_NESTED },
         [RTA_MULTIPATH]         = { .len = sizeof(struct rtnexthop) },
-        [RTA_PROTOINFO]         = { .type = NLA_U32 },
         [RTA_FLOW]              = { .type = NLA_U32 },
 };
 
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 3b83c34019fc..0d4d72827e4b 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -960,7 +960,10 @@ int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
         rtm->rtm_dst_len = dst_len;
         rtm->rtm_src_len = 0;
         rtm->rtm_tos = tos;
-        rtm->rtm_table = tb_id;
+        if (tb_id < 256)
+                rtm->rtm_table = tb_id;
+        else
+                rtm->rtm_table = RT_TABLE_COMPAT;
         NLA_PUT_U32(skb, RTA_TABLE, tb_id);
         rtm->rtm_type = type;
         rtm->rtm_flags = fi->fib_flags;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 6250f4239b61..2769dc4a4c84 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -292,7 +292,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
         struct iphdr *pip;
         struct igmpv3_report *pig;
 
-        skb = alloc_skb(size + LL_RESERVED_SPACE(dev), GFP_ATOMIC);
+        skb = alloc_skb(size + LL_ALLOCATED_SPACE(dev), GFP_ATOMIC);
         if (skb == NULL)
                 return NULL;
 
@@ -653,7 +653,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
                 return -1;
         }
 
-        skb=alloc_skb(IGMP_SIZE+LL_RESERVED_SPACE(dev), GFP_ATOMIC);
+        skb=alloc_skb(IGMP_SIZE+LL_ALLOCATED_SPACE(dev), GFP_ATOMIC);
         if (skb == NULL) {
                 ip_rt_put(rt);
                 return -1;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 828ea211ff21..ec834480abe7 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -419,7 +419,8 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
         struct inet_connection_sock *icsk = inet_csk(parent);
         struct request_sock_queue *queue = &icsk->icsk_accept_queue;
         struct listen_sock *lopt = queue->listen_opt;
-        int thresh = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries;
+        int max_retries = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries;
+        int thresh = max_retries;
         unsigned long now = jiffies;
         struct request_sock **reqp, *req;
         int i, budget;
@@ -455,6 +456,9 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
                 }
         }
 
+        if (queue->rskq_defer_accept)
+                max_retries = queue->rskq_defer_accept;
+
         budget = 2 * (lopt->nr_table_entries / (timeout / interval));
         i = lopt->clock_hand;
 
@@ -462,8 +466,9 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
                 reqp=&lopt->syn_table[i];
                 while ((req = *reqp) != NULL) {
                         if (time_after_eq(now, req->expires)) {
-                                if (req->retrans < thresh &&
-                                    !req->rsk_ops->rtx_syn_ack(parent, req)) {
+                                if ((req->retrans < thresh ||
+                                     (inet_rsk(req)->acked && req->retrans < max_retries))
+                                    && !req->rsk_ops->rtx_syn_ack(parent, req)) {
                                         unsigned long timeo;
 
                                         if (req->retrans++ == 0)
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 4ed429bd5951..0546a0bc97ea 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -192,14 +192,21 @@ EXPORT_SYMBOL(inet_frag_evictor);
 
 static struct inet_frag_queue *inet_frag_intern(struct netns_frags *nf,
                 struct inet_frag_queue *qp_in, struct inet_frags *f,
-                unsigned int hash, void *arg)
+                void *arg)
 {
         struct inet_frag_queue *qp;
 #ifdef CONFIG_SMP
         struct hlist_node *n;
 #endif
+        unsigned int hash;
 
         write_lock(&f->lock);
+        /*
+         * While we stayed w/o the lock other CPU could update
+         * the rnd seed, so we need to re-calculate the hash
+         * chain. Fortunatelly the qp_in can be used to get one.
+         */
+        hash = f->hashfn(qp_in);
 #ifdef CONFIG_SMP
         /* With SMP race we have to recheck hash table, because
          * such entry could be created on other cpu, while we
@@ -247,7 +254,7 @@ static struct inet_frag_queue *inet_frag_alloc(struct netns_frags *nf,
 }
 
 static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf,
-                struct inet_frags *f, void *arg, unsigned int hash)
+                struct inet_frags *f, void *arg)
 {
         struct inet_frag_queue *q;
 
@@ -255,7 +262,7 @@ static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf,
         if (q == NULL)
                 return NULL;
 
-        return inet_frag_intern(nf, q, f, hash, arg);
+        return inet_frag_intern(nf, q, f, arg);
 }
 
 struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
@@ -264,7 +271,6 @@ struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
         struct inet_frag_queue *q;
         struct hlist_node *n;
 
-        read_lock(&f->lock);
         hlist_for_each_entry(q, n, &f->hash[hash], list) {
                 if (q->net == nf && f->match(q, key)) {
                         atomic_inc(&q->refcnt);
@@ -274,6 +280,6 @@ struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
         }
         read_unlock(&f->lock);
 
-        return inet_frag_create(nf, f, key, hash);
+        return inet_frag_create(nf, f, key);
 }
 EXPORT_SYMBOL(inet_frag_find);
diff --git a/net/ipv4/inet_lro.c b/net/ipv4/inet_lro.c
index 4a4d49fca1f2..cfd034a2b96e 100644
--- a/net/ipv4/inet_lro.c
+++ b/net/ipv4/inet_lro.c
@@ -383,8 +383,7 @@ static int __lro_proc_skb(struct net_lro_mgr *lro_mgr, struct sk_buff *skb,
 out2: /* send aggregated SKBs to stack */
         lro_flush(lro_mgr, lro_desc);
 
-out:  /* Original SKB has to be posted to stack */
-        skb->ip_summed = lro_mgr->ip_summed;
+out:
         return 1;
 }
 
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index cd6ce6ac6358..37221f659159 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -229,6 +229,8 @@ static inline struct ipq *ip_find(struct net *net, struct iphdr *iph, u32 user)
 
         arg.iph = iph;
         arg.user = user;
+
+        read_lock(&ip4_frags.lock);
         hash = ipqhashfn(iph->id, iph->saddr, iph->daddr, iph->protocol);
 
         q = inet_frag_find(&net->ipv4.frags, &ip4_frags, &arg, hash);
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 2ada033406de..4342cba4ff82 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -313,9 +313,8 @@ static void ipgre_tunnel_uninit(struct net_device *dev)
 
 static void ipgre_err(struct sk_buff *skb, u32 info)
 {
-#ifndef I_WISH_WORLD_WERE_PERFECT
 
-/* It is not :-( All the routers (except for Linux) return only
+/* All the routers (except for Linux) return only
    8 bytes of packet payload. It means, that precise relaying of
    ICMP in the real Internet is absolutely infeasible.
 
@@ -398,149 +397,6 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
 out:
         read_unlock(&ipgre_lock);
         return;
-#else
-        struct iphdr *iph = (struct iphdr*)dp;
-        struct iphdr *eiph;
-        __be16       *p = (__be16*)(dp+(iph->ihl<<2));
-        const int type = icmp_hdr(skb)->type;
-        const int code = icmp_hdr(skb)->code;
-        int rel_type = 0;
-        int rel_code = 0;
-        __be32 rel_info = 0;
-        __u32 n = 0;
-        __be16 flags;
-        int grehlen = (iph->ihl<<2) + 4;
-        struct sk_buff *skb2;
-        struct flowi fl;
-        struct rtable *rt;
-
-        if (p[1] != htons(ETH_P_IP))
-                return;
-
-        flags = p[0];
-        if (flags&(GRE_CSUM|GRE_KEY|GRE_SEQ|GRE_ROUTING|GRE_VERSION)) {
-                if (flags&(GRE_VERSION|GRE_ROUTING))
-                        return;
-                if (flags&GRE_CSUM)
-                        grehlen += 4;
-                if (flags&GRE_KEY)
-                        grehlen += 4;
-                if (flags&GRE_SEQ)
-                        grehlen += 4;
-        }
-        if (len < grehlen + sizeof(struct iphdr))
-                return;
-        eiph = (struct iphdr*)(dp + grehlen);
-
-        switch (type) {
-        default:
-                return;
-        case ICMP_PARAMETERPROB:
-                n = ntohl(icmp_hdr(skb)->un.gateway) >> 24;
-                if (n < (iph->ihl<<2))
-                        return;
-
-                /* So... This guy found something strange INSIDE encapsulated
-                   packet. Well, he is fool, but what can we do ?
-                 */
-                rel_type = ICMP_PARAMETERPROB;
-                n -= grehlen;
-                rel_info = htonl(n << 24);
-                break;
-
-        case ICMP_DEST_UNREACH:
-                switch (code) {
-                case ICMP_SR_FAILED:
-                case ICMP_PORT_UNREACH:
-                        /* Impossible event. */
-                        return;
-                case ICMP_FRAG_NEEDED:
-                        /* And it is the only really necessary thing :-) */
-                        n = ntohs(icmp_hdr(skb)->un.frag.mtu);
-                        if (n < grehlen+68)
-                                return;
-                        n -= grehlen;
-                        /* BSD 4.2 MORE DOES NOT EXIST IN NATURE. */
-                        if (n > ntohs(eiph->tot_len))
-                                return;
-                        rel_info = htonl(n);
-                        break;
-                default:
-                        /* All others are translated to HOST_UNREACH.
-                           rfc2003 contains "deep thoughts" about NET_UNREACH,
-                           I believe, it is just ether pollution. --ANK
-                         */
-                        rel_type = ICMP_DEST_UNREACH;
-                        rel_code = ICMP_HOST_UNREACH;
-                        break;
-                }
-                break;
-        case ICMP_TIME_EXCEEDED:
-                if (code != ICMP_EXC_TTL)
-                        return;
-                break;
-        }
-
-        /* Prepare fake skb to feed it to icmp_send */
-        skb2 = skb_clone(skb, GFP_ATOMIC);
-        if (skb2 == NULL)
-                return;
-        dst_release(skb2->dst);
-        skb2->dst = NULL;
-        skb_pull(skb2, skb->data - (u8*)eiph);
-        skb_reset_network_header(skb2);
-
-        /* Try to guess incoming interface */
-        memset(&fl, 0, sizeof(fl));
-        fl.fl4_dst = eiph->saddr;
-        fl.fl4_tos = RT_TOS(eiph->tos);
-        fl.proto = IPPROTO_GRE;
-        if (ip_route_output_key(dev_net(skb->dev), &rt, &fl)) {
-                kfree_skb(skb2);
-                return;
-        }
-        skb2->dev = rt->u.dst.dev;
-
-        /* route "incoming" packet */
-        if (rt->rt_flags&RTCF_LOCAL) {
-                ip_rt_put(rt);
-                rt = NULL;
-                fl.fl4_dst = eiph->daddr;
-                fl.fl4_src = eiph->saddr;
-                fl.fl4_tos = eiph->tos;
-                if (ip_route_output_key(dev_net(skb->dev), &rt, &fl) ||
-                    rt->u.dst.dev->type != ARPHRD_IPGRE) {
-                        ip_rt_put(rt);
-                        kfree_skb(skb2);
-                        return;
-                }
-        } else {
-                ip_rt_put(rt);
-                if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos, skb2->dev) ||
-                    skb2->dst->dev->type != ARPHRD_IPGRE) {
-                        kfree_skb(skb2);
-                        return;
-                }
-        }
-
-        /* change mtu on this route */
-        if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
-                if (n > dst_mtu(skb2->dst)) {
-                        kfree_skb(skb2);
-                        return;
-                }
-                skb2->dst->ops->update_pmtu(skb2->dst, n);
-        } else if (type == ICMP_TIME_EXCEEDED) {
-                struct ip_tunnel *t = netdev_priv(skb2->dev);
-                if (t->parms.iph.ttl) {
-                        rel_type = ICMP_DEST_UNREACH;
-                        rel_code = ICMP_HOST_UNREACH;
-                }
-        }
-
-        icmp_send(skb2, rel_type, rel_code, rel_info);
-        kfree_skb(skb2);
-#endif
 }
 
 static inline void ipgre_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 89dee4346f60..ed45037ce9be 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -710,14 +710,14 @@ static void __init ic_bootp_send_if(struct ic_device *d, unsigned long jiffies_d
         struct net_device *dev = d->dev;
         struct sk_buff *skb;
         struct bootp_pkt *b;
-        int hh_len = LL_RESERVED_SPACE(dev);
         struct iphdr *h;
 
         /* Allocate packet */
-        skb = alloc_skb(sizeof(struct bootp_pkt) + hh_len + 15, GFP_KERNEL);
+        skb = alloc_skb(sizeof(struct bootp_pkt) + LL_ALLOCATED_SPACE(dev) + 15,
+                        GFP_KERNEL);
         if (!skb)
                 return;
-        skb_reserve(skb, hh_len);
+        skb_reserve(skb, LL_RESERVED_SPACE(dev));
         b = (struct bootp_pkt *) skb_put(skb, sizeof(struct bootp_pkt));
         memset(b, 0, sizeof(struct bootp_pkt));
 
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 149111f08e8d..af5cb53da5cc 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -278,9 +278,8 @@ static void ipip_tunnel_uninit(struct net_device *dev)
 
 static int ipip_err(struct sk_buff *skb, u32 info)
 {
-#ifndef I_WISH_WORLD_WERE_PERFECT
 
-/* It is not :-( All the routers (except for Linux) return only
+/* All the routers (except for Linux) return only
    8 bytes of packet payload. It means, that precise relaying of
    ICMP in the real Internet is absolutely infeasible.
  */
@@ -337,133 +336,6 @@ static int ipip_err(struct sk_buff *skb, u32 info)
 out:
         read_unlock(&ipip_lock);
         return err;
-#else
-        struct iphdr *iph = (struct iphdr*)dp;
-        int hlen = iph->ihl<<2;
-        struct iphdr *eiph;
-        const int type = icmp_hdr(skb)->type;
-        const int code = icmp_hdr(skb)->code;
-        int rel_type = 0;
-        int rel_code = 0;
-        __be32 rel_info = 0;
-        __u32 n = 0;
-        struct sk_buff *skb2;
-        struct flowi fl;
-        struct rtable *rt;
-
-        if (len < hlen + sizeof(struct iphdr))
-                return 0;
-        eiph = (struct iphdr*)(dp + hlen);
-
-        switch (type) {
-        default:
-                return 0;
-        case ICMP_PARAMETERPROB:
-                n = ntohl(icmp_hdr(skb)->un.gateway) >> 24;
-                if (n < hlen)
-                        return 0;
-
-                /* So... This guy found something strange INSIDE encapsulated
-                   packet. Well, he is fool, but what can we do ?
-                 */
-                rel_type = ICMP_PARAMETERPROB;
-                rel_info = htonl((n - hlen) << 24);
-                break;
-
-        case ICMP_DEST_UNREACH:
-                switch (code) {
-                case ICMP_SR_FAILED:
-                case ICMP_PORT_UNREACH:
-                        /* Impossible event. */
-                        return 0;
-                case ICMP_FRAG_NEEDED:
-                        /* And it is the only really necessary thing :-) */
-                        n = ntohs(icmp_hdr(skb)->un.frag.mtu);
-                        if (n < hlen+68)
-                                return 0;
-                        n -= hlen;
-                        /* BSD 4.2 MORE DOES NOT EXIST IN NATURE. */
-                        if (n > ntohs(eiph->tot_len))
-                                return 0;
-                        rel_info = htonl(n);
-                        break;
-                default:
-                        /* All others are translated to HOST_UNREACH.
-                           rfc2003 contains "deep thoughts" about NET_UNREACH,
-                           I believe, it is just ether pollution. --ANK
-                         */
-                        rel_type = ICMP_DEST_UNREACH;
-                        rel_code = ICMP_HOST_UNREACH;
-                        break;
-                }
-                break;
-        case ICMP_TIME_EXCEEDED:
-                if (code != ICMP_EXC_TTL)
-                        return 0;
-                break;
-        }
-
-        /* Prepare fake skb to feed it to icmp_send */
-        skb2 = skb_clone(skb, GFP_ATOMIC);
-        if (skb2 == NULL)
-                return 0;
-        dst_release(skb2->dst);
-        skb2->dst = NULL;
-        skb_pull(skb2, skb->data - (u8*)eiph);
-        skb_reset_network_header(skb2);
-
-        /* Try to guess incoming interface */
-        memset(&fl, 0, sizeof(fl));
-        fl.fl4_daddr = eiph->saddr;
-        fl.fl4_tos = RT_TOS(eiph->tos);
-        fl.proto = IPPROTO_IPIP;
-        if (ip_route_output_key(dev_net(skb->dev), &rt, &key)) {
-                kfree_skb(skb2);
-                return 0;
-        }
-        skb2->dev = rt->u.dst.dev;
-
-        /* route "incoming" packet */
-        if (rt->rt_flags&RTCF_LOCAL) {
-                ip_rt_put(rt);
-                rt = NULL;
-                fl.fl4_daddr = eiph->daddr;
-                fl.fl4_src = eiph->saddr;
-                fl.fl4_tos = eiph->tos;
-                if (ip_route_output_key(dev_net(skb->dev), &rt, &fl) ||
-                    rt->u.dst.dev->type != ARPHRD_TUNNEL) {
-                        ip_rt_put(rt);
-                        kfree_skb(skb2);
-                        return 0;
-                }
-        } else {
-                ip_rt_put(rt);
-                if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos, skb2->dev) ||
-                    skb2->dst->dev->type != ARPHRD_TUNNEL) {
-                        kfree_skb(skb2);
-                        return 0;
-                }
-        }
-
-        /* change mtu on this route */
-        if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
-                if (n > dst_mtu(skb2->dst)) {
-                        kfree_skb(skb2);
-                        return 0;
-                }
-                skb2->dst->ops->update_pmtu(skb2->dst, n);
-        } else if (type == ICMP_TIME_EXCEEDED) {
-                struct ip_tunnel *t = netdev_priv(skb2->dev);
-                if (t->parms.iph.ttl) {
-                        rel_type = ICMP_DEST_UNREACH;
-                        rel_code = ICMP_HOST_UNREACH;
-                }
-        }
-
-        icmp_send(skb2, rel_type, rel_code, rel_info);
-        kfree_skb(skb2);
-        return 0;
-#endif
 }
 
 static inline void ipip_ecn_decapsulate(const struct iphdr *outer_iph,
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 04578593e100..d2a887fc8d9b 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -556,7 +556,6 @@ static void nf_nat_cleanup_conntrack(struct nf_conn *ct)
 
         spin_lock_bh(&nf_nat_lock);
         hlist_del_rcu(&nat->bysource);
-        nat->ct = NULL;
         spin_unlock_bh(&nf_nat_lock);
 }
 
@@ -570,8 +569,8 @@ static void nf_nat_move_storage(void *new, void *old)
                 return;
 
         spin_lock_bh(&nf_nat_lock);
-        hlist_replace_rcu(&old_nat->bysource, &new_nat->bysource);
         new_nat->ct = ct;
+        hlist_replace_rcu(&old_nat->bysource, &new_nat->bysource);
         spin_unlock_bh(&nf_nat_lock);
 }
 
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c b/net/ipv4/netfilter/nf_nat_snmp_basic.c
index 5daefad3d193..7750c97fde7b 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c
@@ -232,6 +232,11 @@ static unsigned char asn1_length_decode(struct asn1_ctx *ctx,
                         }
                 }
         }
+
+        /* don't trust len bigger than ctx buffer */
+        if (*len > ctx->end - ctx->pointer)
+                return 0;
+
         return 1;
 }
 
@@ -250,6 +255,10 @@ static unsigned char asn1_header_decode(struct asn1_ctx *ctx,
         if (!asn1_length_decode(ctx, &def, &len))
                 return 0;
 
+        /* primitive shall be definite, indefinite shall be constructed */
+        if (*con == ASN1_PRI && !def)
+                return 0;
+
         if (def)
                 *eoc = ctx->pointer + len;
         else
@@ -434,6 +443,11 @@ static unsigned char asn1_oid_decode(struct asn1_ctx *ctx,
         unsigned long *optr;
 
         size = eoc - ctx->pointer + 1;
+
+        /* first subid actually encodes first two subids */
+        if (size < 2 || size > ULONG_MAX/sizeof(unsigned long))
+                return 0;
+
         *oid = kmalloc(size * sizeof(unsigned long), GFP_ATOMIC);
         if (*oid == NULL) {
                 if (net_ratelimit())
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 11d7f753a820..37a1ecd9d600 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -322,7 +322,6 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
                         unsigned int flags)
 {
         struct inet_sock *inet = inet_sk(sk);
-        int hh_len;
         struct iphdr *iph;
         struct sk_buff *skb;
         unsigned int iphlen;
@@ -336,13 +335,12 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
         if (flags&MSG_PROBE)
                 goto out;
 
-        hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
-
-        skb = sock_alloc_send_skb(sk, length+hh_len+15,
-                                  flags&MSG_DONTWAIT, &err);
+        skb = sock_alloc_send_skb(sk,
+                                  length + LL_ALLOCATED_SPACE(rt->u.dst.dev) + 15,
+                                  flags & MSG_DONTWAIT, &err);
         if (skb == NULL)
                 goto error;
-        skb_reserve(skb, hh_len);
+        skb_reserve(skb, LL_RESERVED_SPACE(rt->u.dst.dev));
 
         skb->priority = sk->sk_priority;
         skb->mark = sk->sk_mark;
@@ -610,6 +608,14 @@ static void raw_close(struct sock *sk, long timeout)
         sk_common_release(sk);
 }
 
+static int raw_destroy(struct sock *sk)
+{
+        lock_sock(sk);
+        ip_flush_pending_frames(sk);
+        release_sock(sk);
+        return 0;
+}
+
 /* This gets rid of all the nasties in af_inet. -DaveM */
 static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 {
@@ -822,6 +828,7 @@ struct proto raw_prot = {
         .name              = "RAW",
         .owner             = THIS_MODULE,
         .close             = raw_close,
+        .destroy           = raw_destroy,
         .connect           = ip4_datagram_connect,
         .disconnect        = udp_disconnect,
         .ioctl             = raw_ioctl,
@@ -927,7 +934,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
               srcp  = inet->num;
 
         seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
-                " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d",
+                " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",
                 i, src, srcp, dest, destp, sp->sk_state,
                 atomic_read(&sp->sk_wmem_alloc),
                 atomic_read(&sp->sk_rmem_alloc),
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 92f90ae46f4a..96be336064fb 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -160,7 +160,7 @@ static struct dst_ops ipv4_dst_ops = {
         .negative_advice =      ipv4_negative_advice,
         .link_failure =         ipv4_link_failure,
         .update_pmtu =          ip_rt_update_pmtu,
-        .local_out =            ip_local_out,
+        .local_out =            __ip_local_out,
         .entry_size =           sizeof(struct rtable),
         .entries =              ATOMIC_INIT(0),
 };
@@ -1792,7 +1792,7 @@ static int __mkroute_input(struct sk_buff *skb,
         if (err)
                 flags |= RTCF_DIRECTSRC;
 
-        if (out_dev == in_dev && err && !(flags & RTCF_MASQ) &&
+        if (out_dev == in_dev && err &&
             (IN_DEV_SHARED_MEDIA(out_dev) ||
              inet_addr_onlink(out_dev, saddr, FIB_RES_GW(*res))))
                 flags |= RTCF_DOREDIRECT;
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 73ba98921d64..d182a2a26291 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -285,7 +285,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
                 cookie_check_timestamp(&tcp_opt);
 
         ret = NULL;
-        req = reqsk_alloc(&tcp_request_sock_ops); /* for safety */
+        req = inet_reqsk_alloc(&tcp_request_sock_ops); /* for safety */
         if (!req)
                 goto out;
 
@@ -301,7 +301,6 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
         ireq->rmt_port          = th->source;
         ireq->loc_addr          = ip_hdr(skb)->daddr;
         ireq->rmt_addr          = ip_hdr(skb)->saddr;
-        ireq->opt               = NULL;
         ireq->snd_wscale        = tcp_opt.snd_wscale;
         ireq->rcv_wscale        = tcp_opt.rcv_wscale;
         ireq->sack_ok           = tcp_opt.sack_ok;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index f88653138621..850825dc86e6 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -260,6 +260,8 @@
 #include <linux/socket.h>
 #include <linux/random.h>
 #include <linux/bootmem.h>
+#include <linux/highmem.h>
+#include <linux/swap.h>
 #include <linux/cache.h>
 #include <linux/err.h>
 #include <linux/crypto.h>
@@ -1227,7 +1229,14 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
                                 copied += used;
                                 offset += used;
                         }
-                        if (offset != skb->len)
+                        /*
+                         * If recv_actor drops the lock (e.g. TCP splice
+                         * receive) the skb pointer might be invalid when
+                         * getting here: tcp_collapse might have deleted it
+                         * while aggregating skbs from the socket queue.
+                         */
+                        skb = tcp_recv_skb(sk, seq-1, &offset);
+                        if (!skb || (offset+1 != skb->len))
                                 break;
                 }
                 if (tcp_hdr(skb)->fin) {
@@ -2105,12 +2114,15 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
                 break;
 
         case TCP_DEFER_ACCEPT:
-                if (val < 0) {
-                        err = -EINVAL;
-                } else {
-                        if (val > MAX_TCP_ACCEPT_DEFERRED)
-                                val = MAX_TCP_ACCEPT_DEFERRED;
-                        icsk->icsk_accept_queue.rskq_defer_accept = val;
+                icsk->icsk_accept_queue.rskq_defer_accept = 0;
+                if (val > 0) {
+                        /* Translate value in seconds to number of
+                         * retransmits */
+                        while (icsk->icsk_accept_queue.rskq_defer_accept < 32 &&
+                               val > ((TCP_TIMEOUT_INIT / HZ) <<
+                                       icsk->icsk_accept_queue.rskq_defer_accept))
+                                icsk->icsk_accept_queue.rskq_defer_accept++;
+                        icsk->icsk_accept_queue.rskq_defer_accept++;
                 }
                 break;
 
@@ -2292,7 +2304,8 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
                         val = (val ? : sysctl_tcp_fin_timeout) / HZ;
                 break;
         case TCP_DEFER_ACCEPT:
-                val = icsk->icsk_accept_queue.rskq_defer_accept;
+                val = !icsk->icsk_accept_queue.rskq_defer_accept ? 0 :
+                        ((TCP_TIMEOUT_INIT / HZ) << (icsk->icsk_accept_queue.rskq_defer_accept - 1));
                 break;
         case TCP_WINDOW_CLAMP:
                 val = tp->window_clamp;
@@ -2609,7 +2622,7 @@ __setup("thash_entries=", set_thash_entries);
 void __init tcp_init(void)
 {
         struct sk_buff *skb = NULL;
-        unsigned long limit;
+        unsigned long nr_pages, limit;
         int order, i, max_share;
 
         BUILD_BUG_ON(sizeof(struct tcp_skb_cb) > sizeof(skb->cb));
@@ -2678,8 +2691,9 @@ void __init tcp_init(void)
          * is up to 1/2 at 256 MB, decreasing toward zero with the amount of
          * memory, with a floor of 128 pages.
          */
-        limit = min(nr_all_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT);
-        limit = (limit * (nr_all_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11);
+        nr_pages = totalram_pages - totalhigh_pages;
+        limit = min(nr_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT);
+        limit = (limit * (nr_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11);
         limit = max(limit, 128UL);
         sysctl_tcp_mem[0] = limit / 4 * 3;
         sysctl_tcp_mem[1] = limit;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 26c936930e92..cad73b7dfef0 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1392,9 +1392,9 @@ static struct sk_buff *tcp_maybe_skipping_dsack(struct sk_buff *skb,
 
         if (before(next_dup->start_seq, skip_to_seq)) {
                 skb = tcp_sacktag_skip(skb, sk, next_dup->start_seq, fack_count);
-                tcp_sacktag_walk(skb, sk, NULL,
-                                 next_dup->start_seq, next_dup->end_seq,
-                                 1, fack_count, reord, flag);
+                skb = tcp_sacktag_walk(skb, sk, NULL,
+                                     next_dup->start_seq, next_dup->end_seq,
+                                     1, fack_count, reord, flag);
         }
 
         return skb;
@@ -1842,9 +1842,16 @@ static void tcp_enter_frto_loss(struct sock *sk, int allowed_segments, int flag)
                         TCP_SKB_CB(skb)->sacked &= ~TCPCB_SACKED_RETRANS;
                 }
 
-                /* Don't lost mark skbs that were fwd transmitted after RTO */
-                if (!(TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED) &&
-                    !after(TCP_SKB_CB(skb)->end_seq, tp->frto_highmark)) {
+                /* Marking forward transmissions that were made after RTO lost
+                 * can cause unnecessary retransmissions in some scenarios,
+                 * SACK blocks will mitigate that in some but not in all cases.
+                 * We used to not mark them but it was causing break-ups with
+                 * receivers that do only in-order receival.
+                 *
+                 * TODO: we could detect presence of such receiver and select
+                 * different behavior per flow.
+                 */
+                if (!(TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED)) {
                         TCP_SKB_CB(skb)->sacked |= TCPCB_LOST;
                         tp->lost_out += tcp_skb_pcount(skb);
                 }
@@ -1860,7 +1867,7 @@ static void tcp_enter_frto_loss(struct sock *sk, int allowed_segments, int flag)
         tp->reordering = min_t(unsigned int, tp->reordering,
                                sysctl_tcp_reordering);
         tcp_set_ca_state(sk, TCP_CA_Loss);
-        tp->high_seq = tp->frto_highmark;
+        tp->high_seq = tp->snd_nxt;
         TCP_ECN_queue_cwr(tp);
 
         tcp_clear_retrans_hints_partial(tp);
@@ -2476,28 +2483,34 @@ static inline void tcp_complete_cwr(struct sock *sk)
         tcp_ca_event(sk, CA_EVENT_COMPLETE_CWR);
 }
 
+static void tcp_try_keep_open(struct sock *sk)
+{
+        struct tcp_sock *tp = tcp_sk(sk);
+        int state = TCP_CA_Open;
+
+        if (tcp_left_out(tp) || tp->retrans_out || tp->undo_marker)
+                state = TCP_CA_Disorder;
+
+        if (inet_csk(sk)->icsk_ca_state != state) {
+                tcp_set_ca_state(sk, state);
+                tp->high_seq = tp->snd_nxt;
+        }
+}
+
 static void tcp_try_to_open(struct sock *sk, int flag)
 {
         struct tcp_sock *tp = tcp_sk(sk);
 
         tcp_verify_left_out(tp);
 
-        if (tp->retrans_out == 0)
+        if (!tp->frto_counter && tp->retrans_out == 0)
                 tp->retrans_stamp = 0;
 
         if (flag & FLAG_ECE)
                 tcp_enter_cwr(sk, 1);
 
         if (inet_csk(sk)->icsk_ca_state != TCP_CA_CWR) {
-                int state = TCP_CA_Open;
-
-                if (tcp_left_out(tp) || tp->retrans_out || tp->undo_marker)
-                        state = TCP_CA_Disorder;
-
-                if (inet_csk(sk)->icsk_ca_state != state) {
-                        tcp_set_ca_state(sk, state);
-                        tp->high_seq = tp->snd_nxt;
-                }
+                tcp_try_keep_open(sk);
                 tcp_moderate_cwnd(tp);
         } else {
                 tcp_cwnd_down(sk, flag);
@@ -3303,8 +3316,11 @@ no_queue:
         return 1;
 
 old_ack:
-        if (TCP_SKB_CB(skb)->sacked)
+        if (TCP_SKB_CB(skb)->sacked) {
                 tcp_sacktag_write_queue(sk, skb, prior_snd_una);
+                if (icsk->icsk_ca_state == TCP_CA_Open)
+                        tcp_try_keep_open(sk);
+        }
 
 uninteresting_ack:
         SOCK_DEBUG(sk, "Ack %u out of %u:%u\n", ack, tp->snd_una, tp->snd_nxt);
@@ -4525,49 +4541,6 @@ static void tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th)
         }
 }
 
-static int tcp_defer_accept_check(struct sock *sk)
-{
-        struct tcp_sock *tp = tcp_sk(sk);
-
-        if (tp->defer_tcp_accept.request) {
-                int queued_data =  tp->rcv_nxt - tp->copied_seq;
-                int hasfin =  !skb_queue_empty(&sk->sk_receive_queue) ?
-                        tcp_hdr((struct sk_buff *)
-                                sk->sk_receive_queue.prev)->fin : 0;
-
-                if (queued_data && hasfin)
-                        queued_data--;
-
-                if (queued_data &&
-                    tp->defer_tcp_accept.listen_sk->sk_state == TCP_LISTEN) {
-                        if (sock_flag(sk, SOCK_KEEPOPEN)) {
-                                inet_csk_reset_keepalive_timer(sk,
-                                                               keepalive_time_when(tp));
-                        } else {
-                                inet_csk_delete_keepalive_timer(sk);
-                        }
-
-                        inet_csk_reqsk_queue_add(
-                                tp->defer_tcp_accept.listen_sk,
-                                tp->defer_tcp_accept.request,
-                                sk);
-
-                        tp->defer_tcp_accept.listen_sk->sk_data_ready(
-                                tp->defer_tcp_accept.listen_sk, 0);
-
-                        sock_put(tp->defer_tcp_accept.listen_sk);
-                        sock_put(sk);
-                        tp->defer_tcp_accept.listen_sk = NULL;
-                        tp->defer_tcp_accept.request = NULL;
-                } else if (hasfin ||
-                           tp->defer_tcp_accept.listen_sk->sk_state != TCP_LISTEN) {
-                        tcp_reset(sk);
-                        return -1;
-                }
-        }
-        return 0;
-}
-
 static int tcp_copy_to_iovec(struct sock *sk, struct sk_buff *skb, int hlen)
 {
         struct tcp_sock *tp = tcp_sk(sk);
@@ -4928,8 +4901,6 @@ step5:
 
         tcp_data_snd_check(sk);
         tcp_ack_snd_check(sk);
-
-        tcp_defer_accept_check(sk);
         return 0;
 
 csum_error:
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index cd601a866c2f..ffe869ac1bcf 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -85,10 +85,6 @@
 int sysctl_tcp_tw_reuse __read_mostly;
 int sysctl_tcp_low_latency __read_mostly;
 
-/* Check TCP sequence numbers in ICMP packets. */
-#define ICMP_MIN_LENGTH 8
-
-void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb);
 
 #ifdef CONFIG_TCP_MD5SIG
 static struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk,
@@ -1285,7 +1281,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
         if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
                 goto drop;
 
-        req = reqsk_alloc(&tcp_request_sock_ops);
+        req = inet_reqsk_alloc(&tcp_request_sock_ops);
         if (!req)
                 goto drop;
 
@@ -1918,14 +1914,6 @@ int tcp_v4_destroy_sock(struct sock *sk)
                 sk->sk_sndmsg_page = NULL;
         }
 
-        if (tp->defer_tcp_accept.request) {
-                reqsk_free(tp->defer_tcp_accept.request);
-                sock_put(tp->defer_tcp_accept.listen_sk);
-                sock_put(sk);
-                tp->defer_tcp_accept.listen_sk = NULL;
-                tp->defer_tcp_accept.request = NULL;
-        }
-
         atomic_dec(&tcp_sockets_allocated);
 
         return 0;
@@ -2303,7 +2291,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len)
         }
 
         seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "
-                        "%08X %5d %8d %lu %d %p %u %u %u %u %d%n",
+                        "%08X %5d %8d %lu %d %p %lu %lu %u %u %d%n",
                 i, src, srcp, dest, destp, sk->sk_state,
                 tp->write_seq - tp->snd_una,
                 sk->sk_state == TCP_LISTEN ? sk->sk_ack_backlog :
@@ -2315,8 +2303,8 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len)
                 icsk->icsk_probes_out,
                 sock_i_ino(sk),
                 atomic_read(&sk->sk_refcnt), sk,
-                icsk->icsk_rto,
-                icsk->icsk_ack.ato,
+                jiffies_to_clock_t(icsk->icsk_rto),
+                jiffies_to_clock_t(icsk->icsk_ack.ato),
                 (icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong,
                 tp->snd_cwnd,
                 tp->snd_ssthresh >= 0xFFFF ? -1 : tp->snd_ssthresh,
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 019c8c16e5cc..8245247a6ceb 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -571,8 +571,10 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
            does sequence test, SYN is truncated, and thus we consider
            it a bare ACK.
 
-           Both ends (listening sockets) accept the new incoming
-           connection and try to talk to each other. 8-)
+           If icsk->icsk_accept_queue.rskq_defer_accept, we silently drop this
+           bare ACK.  Otherwise, we create an established connection.  Both
+           ends (listening sockets) accept the new incoming connection and try
+           to talk to each other. 8-)
 
            Note: This case is both harmless, and rare.  Possibility is about the
            same as us discovering intelligent life on another plant tomorrow.
@@ -640,6 +642,13 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
                 if (!(flg & TCP_FLAG_ACK))
                         return NULL;
 
+                /* If TCP_DEFER_ACCEPT is set, drop bare ACK. */
+                if (inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
+                    TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
+                        inet_rsk(req)->acked = 1;
+                        return NULL;
+                }
+
                 /* OK, ACK is valid, create big socket and
                  * feed this segment to it. It will repeat all
                  * the tests. THIS SEGMENT MUST MOVE SOCKET TO
@@ -678,24 +687,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
                 inet_csk_reqsk_queue_unlink(sk, req, prev);
                 inet_csk_reqsk_queue_removed(sk, req);
 
-                if (inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
-                    TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
-
-                        /* the accept queue handling is done is est recv slow
-                         * path so lets make sure to start there
-                         */
-                        tcp_sk(child)->pred_flags = 0;
-                        sock_hold(sk);
-                        sock_hold(child);
-                        tcp_sk(child)->defer_tcp_accept.listen_sk = sk;
-                        tcp_sk(child)->defer_tcp_accept.request = req;
-
-                        inet_csk_reset_keepalive_timer(child,
-                                                       inet_csk(sk)->icsk_accept_queue.rskq_defer_accept * HZ);
-                } else {
-                        inet_csk_reqsk_queue_add(sk, req, child);
-                }
-
+                inet_csk_reqsk_queue_add(sk, req, child);
                 return child;
 
         listen_overflow:
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index debf23581606..ad993ecb4810 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1836,7 +1836,7 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
 {
         struct tcp_sock *tp = tcp_sk(sk);
         struct inet_connection_sock *icsk = inet_csk(sk);
-        unsigned int cur_mss = tcp_current_mss(sk, 0);
+        unsigned int cur_mss;
         int err;
 
         /* Inconslusive MTU probe */
@@ -1858,6 +1858,11 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
                         return -ENOMEM;
         }
 
+        if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
+                return -EHOSTUNREACH; /* Routing failure or similar. */
+
+        cur_mss = tcp_current_mss(sk, 0);
+
         /* If receiver has shrunk his window, and skb is out of
          * new window, do not retransmit it. The exception is the
          * case, when window is shrunk to zero. In this case
@@ -1884,9 +1889,6 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
             (sysctl_tcp_retrans_collapse != 0))
                 tcp_retrans_try_collapse(sk, skb, cur_mss);
 
-        if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
-                return -EHOSTUNREACH; /* Routing failure or similar. */
-
         /* Some Solaris stacks overoptimize and ignore the FIN on a
          * retransmit when old data is attached.  So strip it off
          * since it is cheap to do so and saves bytes on the network.
@@ -2129,6 +2131,8 @@ void tcp_send_active_reset(struct sock *sk, gfp_t priority)
         TCP_SKB_CB(skb)->when = tcp_time_stamp;
         if (tcp_transmit_skb(sk, skb, 0, priority))
                 NET_INC_STATS(LINUX_MIB_TCPABORTFAILED);
+
+        TCP_INC_STATS(TCP_MIB_OUTRSTS);
 }
 
 /* WARNING: This routine must only be called when we have already sent
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 4de68cf5f2aa..63ed9d6830e7 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -489,11 +489,6 @@ static void tcp_keepalive_timer (unsigned long data)
                 goto death;
         }
 
-        if (tp->defer_tcp_accept.request && sk->sk_state == TCP_ESTABLISHED) {
-                tcp_send_active_reset(sk, GFP_ATOMIC);
-                goto death;
-        }
-
         if (!sock_flag(sk, SOCK_KEEPOPEN) || sk->sk_state == TCP_CLOSE)
                 goto out;
 
diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c
index d3b709a6f264..cb1f0e83830b 100644
--- a/net/ipv4/tunnel4.c
+++ b/net/ipv4/tunnel4.c
@@ -97,7 +97,7 @@ static int tunnel64_rcv(struct sk_buff *skb)
 {
         struct xfrm_tunnel *handler;
 
-        if (!pskb_may_pull(skb, sizeof(struct iphdr)))
+        if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
                 goto drop;
 
         for (handler = tunnel64_handlers; handler; handler = handler->next)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index db1cb7c96d63..56fcda3694ba 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -420,7 +420,7 @@ void udp_err(struct sk_buff *skb, u32 info)
 /*
  * Throw away all pending data and cancel the corking. Socket is locked.
  */
-static void udp_flush_pending_frames(struct sock *sk)
+void udp_flush_pending_frames(struct sock *sk)
 {
         struct udp_sock *up = udp_sk(sk);
 
@@ -430,6 +430,7 @@ static void udp_flush_pending_frames(struct sock *sk)
                 ip_flush_pending_frames(sk);
         }
 }
+EXPORT_SYMBOL(udp_flush_pending_frames);
 
 /**
  *      udp4_hwcsum_outgoing  -  handle outgoing HW checksumming
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index 584e6d74e3a9..7135279f3f84 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -52,7 +52,7 @@ static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
                 IP_ECN_clear(top_iph);
 
         top_iph->frag_off = (flags & XFRM_STATE_NOPMTUDISC) ?
-                            0 : XFRM_MODE_SKB_CB(skb)->frag_off;
+                0 : (XFRM_MODE_SKB_CB(skb)->frag_off & htons(IP_DF));
         ip_select_ident(top_iph, dst->child, NULL);
 
         top_iph->ttl = dst_metric(dst->child, RTAX_HOPLIMIT);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e591e09e5e4e..147588f4c7c0 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -731,8 +731,13 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
                                                 onlink = -1;
 
                                         spin_lock(&ifa->lock);
-                                        lifetime = min_t(unsigned long,
-                                                         ifa->valid_lft, 0x7fffffffUL/HZ);
+
+                                        lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ);
+                                        /*
+                                         * Note: Because this address is
+                                         * not permanent, lifetime <
+                                         * LONG_MAX / HZ here.
+                                         */
                                         if (time_before(expires,
                                                         ifa->tstamp + lifetime * HZ))
                                                 expires = ifa->tstamp + lifetime * HZ;
@@ -1722,7 +1727,6 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
         __u32 valid_lft;
         __u32 prefered_lft;
         int addr_type;
-        unsigned long rt_expires;
         struct inet6_dev *in6_dev;
 
         pinfo = (struct prefix_info *) opt;
@@ -1764,41 +1768,49 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
          *      2) Configure prefixes with the auto flag set
          */
 
-        /* Avoid arithmetic overflow. Really, we could
-           save rt_expires in seconds, likely valid_lft,
-           but it would require division in fib gc, that it
-           not good.
-         */
-        if (valid_lft >= 0x7FFFFFFF/HZ)
-                rt_expires = 0x7FFFFFFF - (0x7FFFFFFF % HZ);
-        else
-                rt_expires = valid_lft * HZ;
-
-        /*
-         * We convert this (in jiffies) to clock_t later.
-         * Avoid arithmetic overflow there as well.
-         * Overflow can happen only if HZ < USER_HZ.
-         */
-        if (HZ < USER_HZ && rt_expires > 0x7FFFFFFF / USER_HZ)
-                rt_expires = 0x7FFFFFFF / USER_HZ;
-
         if (pinfo->onlink) {
                 struct rt6_info *rt;
+                unsigned long rt_expires;
+
+                /* Avoid arithmetic overflow. Really, we could
+                 * save rt_expires in seconds, likely valid_lft,
+                 * but it would require division in fib gc, that it
+                 * not good.
+                 */
+                if (HZ > USER_HZ)
+                        rt_expires = addrconf_timeout_fixup(valid_lft, HZ);
+                else
+                        rt_expires = addrconf_timeout_fixup(valid_lft, USER_HZ);
+
+                if (addrconf_finite_timeout(rt_expires))
+                        rt_expires *= HZ;
+
                 rt = rt6_lookup(dev_net(dev), &pinfo->prefix, NULL,
                                 dev->ifindex, 1);
 
                 if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
-                        if (rt->rt6i_flags&RTF_EXPIRES) {
-                                if (valid_lft == 0) {
-                                        ip6_del_rt(rt);
-                                        rt = NULL;
-                                } else {
-                                        rt->rt6i_expires = jiffies + rt_expires;
-                                }
+                        /* Autoconf prefix route */
+                        if (valid_lft == 0) {
+                                ip6_del_rt(rt);
+                                rt = NULL;
+                        } else if (addrconf_finite_timeout(rt_expires)) {
+                                /* not infinity */
+                                rt->rt6i_expires = jiffies + rt_expires;
+                                rt->rt6i_flags |= RTF_EXPIRES;
+                        } else {
+                                rt->rt6i_flags &= ~RTF_EXPIRES;
+                                rt->rt6i_expires = 0;
                         }
                 } else if (valid_lft) {
+                        clock_t expires = 0;
+                        int flags = RTF_ADDRCONF | RTF_PREFIX_RT;
+                        if (addrconf_finite_timeout(rt_expires)) {
+                                /* not infinity */
+                                flags |= RTF_EXPIRES;
+                                expires = jiffies_to_clock_t(rt_expires);
+                        }
                         addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len,
-                                              dev, jiffies_to_clock_t(rt_expires), RTF_ADDRCONF|RTF_EXPIRES|RTF_PREFIX_RT);
+                                              dev, expires, flags);
                 }
                 if (rt)
                         dst_release(&rt->u.dst);
@@ -2014,17 +2026,22 @@ err_exit:
  *      Manual configuration of address on an interface
  */
 static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
-                          int plen, __u8 ifa_flags, __u32 prefered_lft,
+                          unsigned int plen, __u8 ifa_flags, __u32 prefered_lft,
                           __u32 valid_lft)
 {
         struct inet6_ifaddr *ifp;
         struct inet6_dev *idev;
         struct net_device *dev;
         int scope;
-        u32 flags = RTF_EXPIRES;
+        u32 flags;
+        clock_t expires;
+        unsigned long timeout;
 
         ASSERT_RTNL();
 
+        if (plen > 128)
+                return -EINVAL;
+
         /* check the lifetime */
         if (!valid_lft || prefered_lft > valid_lft)
                 return -EINVAL;
@@ -2038,17 +2055,23 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
 
         scope = ipv6_addr_scope(pfx);
 
-        if (valid_lft == INFINITY_LIFE_TIME) {
-                ifa_flags |= IFA_F_PERMANENT;
+        timeout = addrconf_timeout_fixup(valid_lft, HZ);
+        if (addrconf_finite_timeout(timeout)) {
+                expires = jiffies_to_clock_t(timeout * HZ);
+                valid_lft = timeout;
+                flags = RTF_EXPIRES;
+        } else {
+                expires = 0;
                 flags = 0;
-        } else if (valid_lft >= 0x7FFFFFFF/HZ)
-                valid_lft = 0x7FFFFFFF/HZ;
+                ifa_flags |= IFA_F_PERMANENT;
+        }
 
-        if (prefered_lft == 0)
-                ifa_flags |= IFA_F_DEPRECATED;
-        else if ((prefered_lft >= 0x7FFFFFFF/HZ) &&
-                 (prefered_lft != INFINITY_LIFE_TIME))
-                prefered_lft = 0x7FFFFFFF/HZ;
+        timeout = addrconf_timeout_fixup(prefered_lft, HZ);
+        if (addrconf_finite_timeout(timeout)) {
+                if (timeout == 0)
+                        ifa_flags |= IFA_F_DEPRECATED;
+                prefered_lft = timeout;
+        }
 
         ifp = ipv6_add_addr(idev, pfx, plen, scope, ifa_flags);
 
@@ -2060,7 +2083,7 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
                 spin_unlock_bh(&ifp->lock);
 
                 addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev,
-                                      jiffies_to_clock_t(valid_lft * HZ), flags);
+                                      expires, flags);
                 /*
                  * Note that section 3.1 of RFC 4429 indicates
                  * that the Optimistic flag should not be set for
@@ -2076,12 +2099,15 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
 }
 
 static int inet6_addr_del(struct net *net, int ifindex, struct in6_addr *pfx,
-                          int plen)
+                          unsigned int plen)
 {
         struct inet6_ifaddr *ifp;
         struct inet6_dev *idev;
         struct net_device *dev;
 
+        if (plen > 128)
+                return -EINVAL;
+
         dev = __dev_get_by_index(net, ifindex);
         if (!dev)
                 return -ENODEV;
@@ -3148,22 +3174,30 @@ inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags,
                              u32 prefered_lft, u32 valid_lft)
 {
-        u32 flags = RTF_EXPIRES;
+        u32 flags;
+        clock_t expires;
+        unsigned long timeout;
 
         if (!valid_lft || (prefered_lft > valid_lft))
                 return -EINVAL;
 
-        if (valid_lft == INFINITY_LIFE_TIME) {
-                ifa_flags |= IFA_F_PERMANENT;
+        timeout = addrconf_timeout_fixup(valid_lft, HZ);
+        if (addrconf_finite_timeout(timeout)) {
+                expires = jiffies_to_clock_t(timeout * HZ);
+                valid_lft = timeout;
+                flags = RTF_EXPIRES;
+        } else {
+                expires = 0;
                 flags = 0;
-        } else if (valid_lft >= 0x7FFFFFFF/HZ)
-                valid_lft = 0x7FFFFFFF/HZ;
+                ifa_flags |= IFA_F_PERMANENT;
+        }
 
-        if (prefered_lft == 0)
-                ifa_flags |= IFA_F_DEPRECATED;
-        else if ((prefered_lft >= 0x7FFFFFFF/HZ) &&
-                 (prefered_lft != INFINITY_LIFE_TIME))
-                prefered_lft = 0x7FFFFFFF/HZ;
+        timeout = addrconf_timeout_fixup(prefered_lft, HZ);
+        if (addrconf_finite_timeout(timeout)) {
+                if (timeout == 0)
+                        ifa_flags |= IFA_F_DEPRECATED;
+                prefered_lft = timeout;
+        }
 
         spin_lock_bh(&ifp->lock);
         ifp->flags = (ifp->flags & ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | IFA_F_HOMEADDRESS)) | ifa_flags;
@@ -3176,7 +3210,7 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags,
                 ipv6_ifa_notify(0, ifp);
 
         addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev,
-                              jiffies_to_clock_t(valid_lft * HZ), flags);
+                              expires, flags);
         addrconf_verify(0);
 
         return 0;
@@ -4242,7 +4276,7 @@ static void addrconf_sysctl_register(struct inet6_dev *idev)
         neigh_sysctl_register(idev->dev, idev->nd_parms, NET_IPV6,
                               NET_IPV6_NEIGH, "ipv6",
                               &ndisc_ifinfo_sysctl_change,
-                              NULL);
+                              ndisc_ifinfo_sysctl_strategy);
         __addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name,
                         idev->dev->ifindex, idev, &idev->cnf);
 }
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 3c6aafb02183..e84b3fd17fb4 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -191,7 +191,7 @@ lookup_protocol:
         np->mcast_hops  = -1;
         np->mc_loop     = 1;
         np->pmtudisc    = IPV6_PMTUDISC_WANT;
-        np->ipv6only    = init_net.ipv6.sysctl.bindv6only;
+        np->ipv6only    = net->ipv6.sysctl.bindv6only;
 
         /* Init the ipv4 part of the socket since we can have sockets
          * using v6 API for ipv4.
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 94fa6ae77cfe..0f0f94a40335 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -496,7 +496,8 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
         return 0;
 }
 
-int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
+int datagram_send_ctl(struct net *net,
+                      struct msghdr *msg, struct flowi *fl,
                       struct ipv6_txoptions *opt,
                       int *hlimit, int *tclass)
 {
@@ -509,7 +510,6 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
 
         for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
                 int addr_type;
-                struct net_device *dev = NULL;
 
                 if (!CMSG_OK(msg, cmsg)) {
                         err = -EINVAL;
@@ -522,6 +522,9 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
                 switch (cmsg->cmsg_type) {
                 case IPV6_PKTINFO:
                 case IPV6_2292PKTINFO:
+                    {
+                        struct net_device *dev = NULL;
+
                         if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct in6_pktinfo))) {
                                 err = -EINVAL;
                                 goto exit_f;
@@ -535,32 +538,32 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
                                 fl->oif = src_info->ipi6_ifindex;
                         }
 
-                        addr_type = ipv6_addr_type(&src_info->ipi6_addr);
+                        addr_type = __ipv6_addr_type(&src_info->ipi6_addr);
 
-                        if (addr_type == IPV6_ADDR_ANY)
-                                break;
+                        if (fl->oif) {
+                                dev = dev_get_by_index(net, fl->oif);
+                                if (!dev)
+                                        return -ENODEV;
+                        } else if (addr_type & IPV6_ADDR_LINKLOCAL)
+                                return -EINVAL;
 
-                        if (addr_type & IPV6_ADDR_LINKLOCAL) {
-                                if (!src_info->ipi6_ifindex)
-                                        return -EINVAL;
-                                else {
-                                        dev = dev_get_by_index(&init_net, src_info->ipi6_ifindex);
-                                        if (!dev)
-                                                return -ENODEV;
-                                }
-                        }
-                        if (!ipv6_chk_addr(&init_net, &src_info->ipi6_addr,
-                                           dev, 0)) {
-                                if (dev)
-                                        dev_put(dev);
-                                err = -EINVAL;
-                                goto exit_f;
+                        if (addr_type != IPV6_ADDR_ANY) {
+                                int strict = __ipv6_addr_src_scope(addr_type) <= IPV6_ADDR_SCOPE_LINKLOCAL;
+                                if (!ipv6_chk_addr(net, &src_info->ipi6_addr,
+                                                   strict ? dev : NULL, 0))
+                                        err = -EINVAL;
+                                else
+                                        ipv6_addr_copy(&fl->fl6_src, &src_info->ipi6_addr);
                         }
+
                         if (dev)
                                 dev_put(dev);
 
-                        ipv6_addr_copy(&fl->fl6_src, &src_info->ipi6_addr);
+                        if (err)
+                                goto exit_f;
+
                         break;
+                    }
 
                 case IPV6_FLOWINFO:
                         if (cmsg->cmsg_len < CMSG_LEN(4)) {
@@ -702,6 +705,11 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
                         }
 
                         *hlimit = *(int *)CMSG_DATA(cmsg);
+                        if (*hlimit < -1 || *hlimit > 0xff) {
+                                err = -EINVAL;
+                                goto exit_f;
+                        }
+
                         break;
 
                 case IPV6_TCLASS:
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index eb7a940310f4..37a4e777e347 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -354,7 +354,7 @@ fl_create(struct net *net, struct in6_flowlabel_req *freq, char __user *optval,
                 msg.msg_control = (void*)(fl->opt+1);
                 flowi.oif = 0;
 
-                err = datagram_send_ctl(&msg, &flowi, fl->opt, &junk, &junk);
+                err = datagram_send_ctl(net, &msg, &flowi, fl->opt, &junk, &junk);
                 if (err)
                         goto done;
                 err = -EINVAL;
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 4e5c8615832c..17eb48b8e329 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -102,6 +102,15 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
         if (hdr->version != 6)
                 goto err;
 
+        /*
+         * RFC4291 2.5.3
+         * A packet received on an interface with a destination address
+         * of loopback must be dropped.
+         */
+        if (!(dev->flags & IFF_LOOPBACK) &&
+            ipv6_addr_loopback(&hdr->daddr))
+                goto err;
+
         skb->transport_header = skb->network_header + sizeof(*hdr);
         IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
 
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 0af2e055f883..48cdce9c696c 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -780,7 +780,7 @@ slow_path:
                  *      Allocate buffer.
                  */
 
-                if ((frag = alloc_skb(len+hlen+sizeof(struct frag_hdr)+LL_RESERVED_SPACE(rt->u.dst.dev), GFP_ATOMIC)) == NULL) {
+                if ((frag = alloc_skb(len+hlen+sizeof(struct frag_hdr)+LL_ALLOCATED_SPACE(rt->u.dst.dev), GFP_ATOMIC)) == NULL) {
                         NETDEBUG(KERN_INFO "IPv6: frag: no memory for new fragment!\n");
                         IP6_INC_STATS(ip6_dst_idev(skb->dst),
                                       IPSTATS_MIB_FRAGFAILS);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 2de3c464fe75..14796181e8b5 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -197,7 +197,7 @@ static int ip6mr_vif_seq_show(struct seq_file *seq, void *v)
                 const char *name = vif->dev ? vif->dev->name : "none";
 
                 seq_printf(seq,
-                           "%2Zd %-10s %8ld %7ld  %8ld %7ld %05X\n",
+                           "%2td %-10s %8ld %7ld  %8ld %7ld %05X\n",
                            vif - vif6_table,
                            name, vif->bytes_in, vif->pkt_in,
                            vif->bytes_out, vif->pkt_out,
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 56d55fecf8ec..86e28a75267f 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -67,7 +67,7 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
 
         /* RA packet may be delivered ONLY to IPPROTO_RAW socket */
         if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num != IPPROTO_RAW)
-                return -EINVAL;
+                return -ENOPROTOOPT;
 
         new_ra = (sel>=0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
 
@@ -161,9 +161,17 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                         struct ipv6_txoptions *opt;
                         struct sk_buff *pktopt;
 
-                        if (sk->sk_protocol != IPPROTO_UDP &&
-                            sk->sk_protocol != IPPROTO_UDPLITE &&
-                            sk->sk_protocol != IPPROTO_TCP)
+                        if (sk->sk_type == SOCK_RAW)
+                                break;
+
+                        if (sk->sk_protocol == IPPROTO_UDP ||
+                            sk->sk_protocol == IPPROTO_UDPLITE) {
+                                struct udp_sock *up = udp_sk(sk);
+                                if (up->pending == AF_INET6) {
+                                        retv = -EBUSY;
+                                        break;
+                                }
+                        } else if (sk->sk_protocol != IPPROTO_TCP)
                                 break;
 
                         if (sk->sk_state != TCP_ESTABLISHED) {
@@ -337,18 +345,21 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
         case IPV6_DSTOPTS:
         {
                 struct ipv6_txoptions *opt;
+
+                /* remove any sticky options header with a zero option
+                 * length, per RFC3542.
+                 */
                 if (optlen == 0)
                         optval = NULL;
+                else if (optlen < sizeof(struct ipv6_opt_hdr) ||
+                         optlen & 0x7 || optlen > 8 * 255)
+                        goto e_inval;
 
                 /* hop-by-hop / destination options are privileged option */
                 retv = -EPERM;
                 if (optname != IPV6_RTHDR && !capable(CAP_NET_RAW))
                         break;
 
-                if (optlen < sizeof(struct ipv6_opt_hdr) ||
-                    optlen & 0x7 || optlen > 8 * 255)
-                        goto e_inval;
-
                 opt = ipv6_renew_options(sk, np->opt, optname,
                                          (struct ipv6_opt_hdr __user *)optval,
                                          optlen);
@@ -416,7 +427,7 @@ sticky_done:
                 msg.msg_controllen = optlen;
                 msg.msg_control = (void*)(opt+1);
 
-                retv = datagram_send_ctl(&msg, &fl, opt, &junk, &junk);
+                retv = datagram_send_ctl(net, &msg, &fl, opt, &junk, &junk);
                 if (retv)
                         goto done;
 update:
@@ -438,7 +449,7 @@ done:
 
         case IPV6_MULTICAST_HOPS:
                 if (sk->sk_type == SOCK_STREAM)
-                        goto e_inval;
+                        break;
                 if (optlen < sizeof(int))
                         goto e_inval;
                 if (val > 255 || val < -1)
@@ -450,13 +461,15 @@ done:
         case IPV6_MULTICAST_LOOP:
                 if (optlen < sizeof(int))
                         goto e_inval;
+                if (val != valbool)
+                        goto e_inval;
                 np->mc_loop = valbool;
                 retv = 0;
                 break;
 
         case IPV6_MULTICAST_IF:
                 if (sk->sk_type == SOCK_STREAM)
-                        goto e_inval;
+                        break;
                 if (optlen < sizeof(int))
                         goto e_inval;
 
@@ -832,7 +845,7 @@ static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
         len = min_t(unsigned int, len, ipv6_optlen(hdr));
         if (copy_to_user(optval, hdr, len))
                 return -EFAULT;
-        return ipv6_optlen(hdr);
+        return len;
 }
 
 static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
@@ -852,7 +865,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
                 if (sk->sk_protocol != IPPROTO_UDP &&
                     sk->sk_protocol != IPPROTO_UDPLITE &&
                     sk->sk_protocol != IPPROTO_TCP)
-                        return -EINVAL;
+                        return -ENOPROTOOPT;
                 if (sk->sk_state != TCP_ESTABLISHED)
                         return -ENOTCONN;
                 val = sk->sk_family;
@@ -866,6 +879,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
                         return -EINVAL;
                 if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0)))
                         return -EFAULT;
+                if (gsf.gf_group.ss_family != AF_INET6)
+                        return -EADDRNOTAVAIL;
                 lock_sock(sk);
                 err = ip6_mc_msfget(sk, &gsf,
                         (struct group_filter __user *)optval, optlen);
@@ -975,6 +990,9 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
                 len = ipv6_getsockopt_sticky(sk, np->opt,
                                              optname, optval, len);
                 release_sock(sk);
+                /* check if ipv6_getsockopt_sticky() returns err code */
+                if (len < 0)
+                        return len;
                 return put_user(len, optlen);
         }
 
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 54f91efdae58..fd632dd7f98d 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1411,7 +1411,7 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
                      IPV6_TLV_PADN, 0 };
 
         /* we assume size > sizeof(ra) here */
-        skb = sock_alloc_send_skb(sk, size + LL_RESERVED_SPACE(dev), 1, &err);
+        skb = sock_alloc_send_skb(sk, size + LL_ALLOCATED_SPACE(dev), 1, &err);
 
         if (!skb)
                 return NULL;
@@ -1790,7 +1790,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         payload_len = len + sizeof(ra);
         full_len = sizeof(struct ipv6hdr) + payload_len;
 
-        skb = sock_alloc_send_skb(sk, LL_RESERVED_SPACE(dev) + full_len, 1, &err);
+        skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + full_len, 1, &err);
 
         if (skb == NULL) {
                 rcu_read_lock();
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 2c74885f8355..282fdb31f8ed 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -479,7 +479,7 @@ static void __ndisc_send(struct net_device *dev,
 
         skb = sock_alloc_send_skb(sk,
                                   (MAX_HEADER + sizeof(struct ipv6hdr) +
-                                   len + LL_RESERVED_SPACE(dev)),
+                                   len + LL_ALLOCATED_SPACE(dev)),
                                   1, &err);
         if (!skb) {
                 ND_PRINTK0(KERN_ERR
@@ -1521,7 +1521,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
 
         buff = sock_alloc_send_skb(sk,
                                    (MAX_HEADER + sizeof(struct ipv6hdr) +
-                                    len + LL_RESERVED_SPACE(dev)),
+                                    len + LL_ALLOCATED_SPACE(dev)),
                                    1, &err);
         if (buff == NULL) {
                 ND_PRINTK0(KERN_ERR
@@ -1727,10 +1727,10 @@ int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write, struct file * f
         return ret;
 }
 
-static int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name,
-                                        int nlen, void __user *oldval,
-                                        size_t __user *oldlenp,
-                                        void __user *newval, size_t newlen)
+int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl, int __user *name,
+                                 int nlen, void __user *oldval,
+                                 size_t __user *oldlenp,
+                                 void __user *newval, size_t newlen)
 {
         struct net_device *dev = ctl->extra1;
         struct inet6_dev *idev;
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 27a5e8b48d93..f405cea21a8b 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -129,7 +129,7 @@ static struct nf_hook_ops ip6t_ops[] __read_mostly = {
                 .priority       = NF_IP6_PRI_MANGLE,
         },
         {
-                .hook           = ip6t_local_hook,
+                .hook           = ip6t_route_hook,
                 .owner          = THIS_MODULE,
                 .pf             = PF_INET6,
                 .hooknum        = NF_INET_LOCAL_IN,
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 2dccad48058c..cf20bc4fd60d 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -207,9 +207,12 @@ fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
         arg.id = id;
         arg.src = src;
         arg.dst = dst;
+
+        read_lock_bh(&nf_frags.lock);
         hash = ip6qhashfn(id, src, dst);
 
         q = inet_frag_find(&nf_init_frags, &nf_frags, &arg, hash);
+        local_bh_enable();
         if (q == NULL)
                 goto oom;
 
@@ -638,10 +641,10 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
                 goto ret_orig;
         }
 
-        spin_lock(&fq->q.lock);
+        spin_lock_bh(&fq->q.lock);
 
         if (nf_ct_frag6_queue(fq, clone, fhdr, nhoff) < 0) {
-                spin_unlock(&fq->q.lock);
+                spin_unlock_bh(&fq->q.lock);
                 pr_debug("Can't insert skb to queue\n");
                 fq_put(fq);
                 goto ret_orig;
@@ -653,7 +656,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
                 if (ret_skb == NULL)
                         pr_debug("Can't reassemble fragmented packets\n");
         }
-        spin_unlock(&fq->q.lock);
+        spin_unlock_bh(&fq->q.lock);
 
         fq_put(fq);
         return ret_skb;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 396f0ea11090..3aee12310d94 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -609,7 +609,6 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
         struct ipv6_pinfo *np = inet6_sk(sk);
         struct ipv6hdr *iph;
         struct sk_buff *skb;
-        unsigned int hh_len;
         int err;
 
         if (length > rt->u.dst.dev->mtu) {
@@ -619,13 +618,12 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
         if (flags&MSG_PROBE)
                 goto out;
 
-        hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
-
-        skb = sock_alloc_send_skb(sk, length+hh_len+15,
-                                  flags&MSG_DONTWAIT, &err);
+        skb = sock_alloc_send_skb(sk,
+                                  length + LL_ALLOCATED_SPACE(rt->u.dst.dev) + 15,
+                                  flags & MSG_DONTWAIT, &err);
         if (skb == NULL)
                 goto error;
-        skb_reserve(skb, hh_len);
+        skb_reserve(skb, LL_RESERVED_SPACE(rt->u.dst.dev));
 
         skb->priority = sk->sk_priority;
         skb->mark = sk->sk_mark;
@@ -815,7 +813,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
                 memset(opt, 0, sizeof(struct ipv6_txoptions));
                 opt->tot_len = sizeof(struct ipv6_txoptions);
 
-                err = datagram_send_ctl(msg, &fl, opt, &hlimit, &tclass);
+                err = datagram_send_ctl(sock_net(sk), msg, &fl, opt, &hlimit, &tclass);
                 if (err < 0) {
                         fl6_sock_release(flowlabel);
                         return err;
@@ -1166,6 +1164,15 @@ static void rawv6_close(struct sock *sk, long timeout)
         sk_common_release(sk);
 }
 
+static int raw6_destroy(struct sock *sk)
+{
+        lock_sock(sk);
+        ip6_flush_pending_frames(sk);
+        release_sock(sk);
+
+        return inet6_destroy_sock(sk);
+}
+
 static int rawv6_init_sk(struct sock *sk)
 {
         struct raw6_sock *rp = raw6_sk(sk);
@@ -1189,11 +1196,11 @@ struct proto rawv6_prot = {
         .name              = "RAWv6",
         .owner             = THIS_MODULE,
         .close             = rawv6_close,
+        .destroy           = raw6_destroy,
         .connect           = ip6_datagram_connect,
         .disconnect        = udp_disconnect,
         .ioctl             = rawv6_ioctl,
         .init              = rawv6_init_sk,
-        .destroy           = inet6_destroy_sock,
         .setsockopt        = rawv6_setsockopt,
         .getsockopt        = rawv6_getsockopt,
         .sendmsg           = rawv6_sendmsg,
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 798cabc7535b..a60d7d129713 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -247,6 +247,8 @@ fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst,
         arg.id = id;
         arg.src = src;
         arg.dst = dst;
+
+        read_lock(&ip6_frags.lock);
         hash = ip6qhashfn(id, src, dst);
 
         q = inet_frag_find(&net->ipv6.frags, &ip6_frags, &arg, hash);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 12bba0880345..7ff687020fa9 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -109,7 +109,7 @@ static struct dst_ops ip6_dst_ops_template = {
         .negative_advice        =       ip6_negative_advice,
         .link_failure           =       ip6_link_failure,
         .update_pmtu            =       ip6_rt_update_pmtu,
-        .local_out              =       ip6_local_out,
+        .local_out              =       __ip6_local_out,
         .entry_size             =       sizeof(struct rt6_info),
         .entries                =       ATOMIC_INIT(0),
 };
@@ -240,7 +240,7 @@ static inline int rt6_need_strict(struct in6_addr *daddr)
 static inline struct rt6_info *rt6_device_match(struct net *net,
                                                     struct rt6_info *rt,
                                                     int oif,
-                                                    int strict)
+                                                    int flags)
 {
         struct rt6_info *local = NULL;
         struct rt6_info *sprt;
@@ -253,7 +253,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net,
                         if (dev->flags & IFF_LOOPBACK) {
                                 if (sprt->rt6i_idev == NULL ||
                                     sprt->rt6i_idev->dev->ifindex != oif) {
-                                        if (strict && oif)
+                                        if (flags & RT6_LOOKUP_F_IFACE && oif)
                                                 continue;
                                         if (local && (!oif ||
                                                       local->rt6i_idev->dev->ifindex == oif))
@@ -266,7 +266,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net,
                 if (local)
                         return local;
 
-                if (strict)
+                if (flags & RT6_LOOKUP_F_IFACE)
                         return net->ipv6.ip6_null_entry;
         }
         return rt;
@@ -446,7 +446,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
         struct route_info *rinfo = (struct route_info *) opt;
         struct in6_addr prefix_buf, *prefix;
         unsigned int pref;
-        u32 lifetime;
+        unsigned long lifetime;
         struct rt6_info *rt;
 
         if (len < sizeof(struct route_info)) {
@@ -472,13 +472,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
         if (pref == ICMPV6_ROUTER_PREF_INVALID)
                 pref = ICMPV6_ROUTER_PREF_MEDIUM;
 
-        lifetime = ntohl(rinfo->lifetime);
-        if (lifetime == 0xffffffff) {
-                /* infinity */
-        } else if (lifetime > 0x7fffffff/HZ) {
-                /* Avoid arithmetic overflow */
-                lifetime = 0x7fffffff/HZ - 1;
-        }
+        lifetime = addrconf_timeout_fixup(ntohl(rinfo->lifetime), HZ);
 
         if (rinfo->length == 3)
                 prefix = (struct in6_addr *)rinfo->prefix;
@@ -506,7 +500,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
                                  (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
 
         if (rt) {
-                if (lifetime == 0xffffffff) {
+                if (!addrconf_finite_timeout(lifetime)) {
                         rt->rt6i_flags &= ~RTF_EXPIRES;
                 } else {
                         rt->rt6i_expires = jiffies + HZ * lifetime;
@@ -1106,7 +1100,9 @@ int ip6_route_add(struct fib6_config *cfg)
         }
 
         rt->u.dst.obsolete = -1;
-        rt->rt6i_expires = jiffies + clock_t_to_jiffies(cfg->fc_expires);
+        rt->rt6i_expires = (cfg->fc_flags & RTF_EXPIRES) ?
+                                jiffies + clock_t_to_jiffies(cfg->fc_expires) :
+                                0;
 
         if (cfg->fc_protocol == RTPROT_UNSPEC)
                 cfg->fc_protocol = RTPROT_BOOT;
@@ -2200,7 +2196,13 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
 
         NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
 
-        expires = rt->rt6i_expires ? rt->rt6i_expires - jiffies : 0;
+        if (!(rt->rt6i_flags & RTF_EXPIRES))
+                expires = 0;
+        else if (rt->rt6i_expires - jiffies < INT_MAX)
+                expires = rt->rt6i_expires - jiffies;
+        else
+                expires = INT_MAX;
+
         if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0,
                                expires, rt->u.dst.error) < 0)
                 goto nla_put_failure;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 5a6fab95569f..32e871a6c25a 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -222,15 +222,18 @@ __ipip6_tunnel_locate_prl(struct ip_tunnel *t, __be32 addr)
 
 }
 
-static int ipip6_tunnel_get_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
+static int ipip6_tunnel_get_prl(struct ip_tunnel *t,
+                                struct ip_tunnel_prl __user *a)
 {
-        struct ip_tunnel_prl *kp;
+        struct ip_tunnel_prl kprl, *kp;
         struct ip_tunnel_prl_entry *prl;
         unsigned int cmax, c = 0, ca, len;
         int ret = 0;
 
-        cmax = a->datalen / sizeof(*a);
-        if (cmax > 1 && a->addr != htonl(INADDR_ANY))
+        if (copy_from_user(&kprl, a, sizeof(kprl)))
+                return -EFAULT;
+        cmax = kprl.datalen / sizeof(kprl);
+        if (cmax > 1 && kprl.addr != htonl(INADDR_ANY))
                 cmax = 1;
 
         /* For simple GET or for root users,
@@ -261,26 +264,25 @@ static int ipip6_tunnel_get_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
         for (prl = t->prl; prl; prl = prl->next) {
                 if (c > cmax)
                         break;
-                if (a->addr != htonl(INADDR_ANY) && prl->addr != a->addr)
+                if (kprl.addr != htonl(INADDR_ANY) && prl->addr != kprl.addr)
                         continue;
                 kp[c].addr = prl->addr;
                 kp[c].flags = prl->flags;
                 c++;
-                if (a->addr != htonl(INADDR_ANY))
+                if (kprl.addr != htonl(INADDR_ANY))
                         break;
         }
 out:
         read_unlock(&ipip6_lock);
 
         len = sizeof(*kp) * c;
-        ret = len ? copy_to_user(a->data, kp, len) : 0;
+        ret = 0;
+        if ((len && copy_to_user(a + 1, kp, len)) || put_user(len, &a->datalen))
+                ret = -EFAULT;
 
         kfree(kp);
-        if (ret)
-                return -EFAULT;
 
-        a->datalen = len;
-        return 0;
+        return ret;
 }
 
 static int
@@ -403,9 +405,8 @@ static void ipip6_tunnel_uninit(struct net_device *dev)
 
 static int ipip6_err(struct sk_buff *skb, u32 info)
 {
-#ifndef I_WISH_WORLD_WERE_PERFECT
 
-/* It is not :-( All the routers (except for Linux) return only
+/* All the routers (except for Linux) return only
    8 bytes of packet payload. It means, that precise relaying of
    ICMP in the real Internet is absolutely infeasible.
  */
@@ -462,92 +463,6 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
 out:
         read_unlock(&ipip6_lock);
         return err;
-#else
-        struct iphdr *iph = (struct iphdr*)dp;
-        int hlen = iph->ihl<<2;
-        struct ipv6hdr *iph6;
-        const int type = icmp_hdr(skb)->type;
-        const int code = icmp_hdr(skb)->code;
-        int rel_type = 0;
-        int rel_code = 0;
-        int rel_info = 0;
-        struct sk_buff *skb2;
-        struct rt6_info *rt6i;
-
-        if (len < hlen + sizeof(struct ipv6hdr))
-                return;
-        iph6 = (struct ipv6hdr*)(dp + hlen);
-
-        switch (type) {
-        default:
-                return;
-        case ICMP_PARAMETERPROB:
-                if (icmp_hdr(skb)->un.gateway < hlen)
-                        return;
-
-                /* So... This guy found something strange INSIDE encapsulated
-                   packet. Well, he is fool, but what can we do ?
-                 */
-                rel_type = ICMPV6_PARAMPROB;
-                rel_info = icmp_hdr(skb)->un.gateway - hlen;
-                break;
-
-        case ICMP_DEST_UNREACH:
-                switch (code) {
-                case ICMP_SR_FAILED:
-                case ICMP_PORT_UNREACH:
-                        /* Impossible event. */
-                        return;
-                case ICMP_FRAG_NEEDED:
-                        /* Too complicated case ... */
-                        return;
-                default:
-                        /* All others are translated to HOST_UNREACH.
-                           rfc2003 contains "deep thoughts" about NET_UNREACH,
-                           I believe, it is just ether pollution. --ANK
-                         */
-                        rel_type = ICMPV6_DEST_UNREACH;
-                        rel_code = ICMPV6_ADDR_UNREACH;
-                        break;
-                }
-                break;
-        case ICMP_TIME_EXCEEDED:
-                if (code != ICMP_EXC_TTL)
-                        return;
-                rel_type = ICMPV6_TIME_EXCEED;
-                rel_code = ICMPV6_EXC_HOPLIMIT;
-                break;
-        }
-
-        /* Prepare fake skb to feed it to icmpv6_send */
-        skb2 = skb_clone(skb, GFP_ATOMIC);
-        if (skb2 == NULL)
-                return 0;
-        dst_release(skb2->dst);
-        skb2->dst = NULL;
-        skb_pull(skb2, skb->data - (u8*)iph6);
-        skb_reset_network_header(skb2);
-
-        /* Try to guess incoming interface */
-        rt6i = rt6_lookup(dev_net(skb->dev), &iph6->saddr, NULL, NULL, 0);
-        if (rt6i && rt6i->rt6i_dev) {
-                skb2->dev = rt6i->rt6i_dev;
-
-                rt6i = rt6_lookup(dev_net(skb->dev),
-                                &iph6->daddr, &iph6->saddr, NULL, 0);
-
-                if (rt6i && rt6i->rt6i_dev && rt6i->rt6i_dev->type == ARPHRD_SIT) {
-                        struct ip_tunnel *t = netdev_priv(rt6i->rt6i_dev);
-                        if (rel_type == ICMPV6_TIME_EXCEED && t->parms.iph.ttl) {
-                                rel_type = ICMPV6_DEST_UNREACH;
-                                rel_code = ICMPV6_ADDR_UNREACH;
-                        }
-                        icmpv6_send(skb2, rel_type, rel_code, rel_info, skb2->dev);
-                }
-        }
-        kfree_skb(skb2);
-        return 0;
-#endif
 }
 
 static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
@@ -960,11 +875,20 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
                 break;
 
         case SIOCGETPRL:
+                err = -EINVAL;
+                if (dev == sitn->fb_tunnel_dev)
+                        goto done;
+                err = -ENOENT;
+                if (!(t = netdev_priv(dev)))
+                        goto done;
+                err = ipip6_tunnel_get_prl(t, ifr->ifr_ifru.ifru_data);
+                break;
+
         case SIOCADDPRL:
         case SIOCDELPRL:
         case SIOCCHGPRL:
                 err = -EPERM;
-                if (cmd != SIOCGETPRL && !capable(CAP_NET_ADMIN))
+                if (!capable(CAP_NET_ADMIN))
                         goto done;
                 err = -EINVAL;
                 if (dev == sitn->fb_tunnel_dev)
@@ -977,12 +901,6 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
                         goto done;
 
                 switch (cmd) {
-                case SIOCGETPRL:
-                        err = ipip6_tunnel_get_prl(t, &prl);
-                        if (!err && copy_to_user(ifr->ifr_ifru.ifru_data,
-                                                 &prl, sizeof(prl)))
-                                err = -EFAULT;
-                        break;
                 case SIOCDELPRL:
                         err = ipip6_tunnel_del_prl(t, &prl);
                         break;
@@ -991,8 +909,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
                         err = ipip6_tunnel_add_prl(t, &prl, cmd == SIOCCHGPRL);
                         break;
                 }
-                if (cmd != SIOCGETPRL)
-                        netdev_state_change(dev);
+                netdev_state_change(dev);
                 break;
 
         default:
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 938ce4ecde55..3ecc1157994e 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -198,7 +198,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
         ireq = inet_rsk(req);
         ireq6 = inet6_rsk(req);
         treq = tcp_rsk(req);
-        ireq6->pktopts = NULL;
 
         if (security_inet_conn_request(sk, skb, req)) {
                 reqsk_free(req);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 715965f0fac0..40ea9c36d24b 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1299,7 +1299,6 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
         treq = inet6_rsk(req);
         ipv6_addr_copy(&treq->rmt_addr, &ipv6_hdr(skb)->saddr);
         ipv6_addr_copy(&treq->loc_addr, &ipv6_hdr(skb)->daddr);
-        treq->pktopts = NULL;
         if (!want_cookie)
                 TCP_ECN_create_request(req, tcp_hdr(skb));
 
@@ -2037,7 +2036,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
 
         seq_printf(seq,
                    "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
-                   "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %u %u %u %u %d\n",
+                   "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %lu %lu %u %u %d\n",
                    i,
                    src->s6_addr32[0], src->s6_addr32[1],
                    src->s6_addr32[2], src->s6_addr32[3], srcp,
@@ -2053,8 +2052,8 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
                    icsk->icsk_probes_out,
                    sock_i_ino(sp),
                    atomic_read(&sp->sk_refcnt), sp,
-                   icsk->icsk_rto,
-                   icsk->icsk_ack.ato,
+                   jiffies_to_clock_t(icsk->icsk_rto),
+                   jiffies_to_clock_t(icsk->icsk_ack.ato),
                    (icsk->icsk_ack.quick << 1 ) | icsk->icsk_ack.pingpong,
                    tp->snd_cwnd, tp->snd_ssthresh>=0xFFFF?-1:tp->snd_ssthresh
                    );
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
index 6323921b40be..669f280989c3 100644
--- a/net/ipv6/tunnel6.c
+++ b/net/ipv6/tunnel6.c
@@ -109,7 +109,7 @@ static int tunnel46_rcv(struct sk_buff *skb)
 {
         struct xfrm6_tunnel *handler;
 
-        if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
+        if (!pskb_may_pull(skb, sizeof(struct iphdr)))
                 goto drop;
 
         for (handler = tunnel46_handlers; handler; handler = handler->next)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 1fd784f3e2ec..dd309626ae9a 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -534,7 +534,9 @@ static void udp_v6_flush_pending_frames(struct sock *sk)
 {
         struct udp_sock *up = udp_sk(sk);
 
-        if (up->pending) {
+        if (up->pending == AF_INET)
+                udp_flush_pending_frames(sk);
+        else if (up->pending) {
                 up->len = 0;
                 up->pending = 0;
                 ip6_flush_pending_frames(sk);
@@ -731,7 +733,7 @@ do_udp_sendmsg:
                 memset(opt, 0, sizeof(struct ipv6_txoptions));
                 opt->tot_len = sizeof(*opt);
 
-                err = datagram_send_ctl(msg, &fl, opt, &hlimit, &tclass);
+                err = datagram_send_ctl(sock_net(sk), msg, &fl, opt, &hlimit, &tclass);
                 if (err < 0) {
                         fl6_sock_release(flowlabel);
                         return err;
@@ -848,12 +850,14 @@ do_append_data:
                 } else {
                         dst_release(dst);
                 }
+                dst = NULL;
         }
 
         if (err > 0)
                 err = np->recverr ? net_xmit_errno(err) : 0;
         release_sock(sk);
 out:
+        dst_release(dst);
         fl6_sock_release(flowlabel);
         if (!err)
                 return len;
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index ae54b20d0470..3eb5bcc75f99 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -1093,11 +1093,6 @@ static int irda_create(struct net *net, struct socket *sock, int protocol)
 
         init_waitqueue_head(&self->query_wait);
 
-        /* Initialise networking socket struct */
-        sock_init_data(sock, sk);       /* Note : set sk->sk_refcnt to 1 */
-        sk->sk_family = PF_IRDA;
-        sk->sk_protocol = protocol;
-
         switch (sock->type) {
         case SOCK_STREAM:
                 sock->ops = &irda_stream_ops;
@@ -1124,13 +1119,20 @@ static int irda_create(struct net *net, struct socket *sock, int protocol)
                         self->max_sdu_size_rx = TTP_SAR_UNBOUND;
                         break;
                 default:
+                        sk_free(sk);
                         return -ESOCKTNOSUPPORT;
                 }
                 break;
         default:
+                sk_free(sk);
                 return -ESOCKTNOSUPPORT;
         }
 
+        /* Initialise networking socket struct */
+        sock_init_data(sock, sk);       /* Note : set sk->sk_refcnt to 1 */
+        sk->sk_family = PF_IRDA;
+        sk->sk_protocol = protocol;
+
         /* Register as a client with IrLMP */
         self->ckey = irlmp_register_client(0, NULL, NULL, NULL);
         self->mask.word = 0xffff;
diff --git a/net/irda/discovery.c b/net/irda/discovery.c
index bfacef8b76f4..a6f99b5a1499 100644
--- a/net/irda/discovery.c
+++ b/net/irda/discovery.c
@@ -40,6 +40,8 @@
 
 #include <net/irda/discovery.h>
 
+#include <asm/unaligned.h>
+
 /*
  * Function irlmp_add_discovery (cachelog, discovery)
  *
@@ -87,7 +89,7 @@ void irlmp_add_discovery(hashbin_t *cachelog, discovery_t *new)
                          */
                         hashbin_remove_this(cachelog, (irda_queue_t *) node);
                         /* Check if hints bits are unchanged */
-                        if(u16ho(node->data.hints) == u16ho(new->data.hints))
+                        if (get_unaligned((__u16 *)node->data.hints) == get_unaligned((__u16 *)new->data.hints))
                                 /* Set time of first discovery for this node */
                                 new->firststamp = node->firststamp;
                         kfree(node);
@@ -281,9 +283,9 @@ struct irda_device_info *irlmp_copy_discoveries(hashbin_t *log, int *pn,
                 /* Mask out the ones we don't want :
                  * We want to match the discovery mask, and to get only
                  * the most recent one (unless we want old ones) */
-                if ((u16ho(discovery->data.hints) & mask) &&
+                if ((get_unaligned((__u16 *)discovery->data.hints) & mask) &&
                     ((old_entries) ||
-                     ((jiffies - discovery->firststamp) < j_timeout)) ) {
+                     ((jiffies - discovery->firststamp) < j_timeout))) {
                         /* Create buffer as needed.
                          * As this function get called a lot and most time
                          * we don't have anything to put in the log (we are
diff --git a/net/irda/irlmp.c b/net/irda/irlmp.c
index 1f81f8e7c61d..7bf5b913828b 100644
--- a/net/irda/irlmp.c
+++ b/net/irda/irlmp.c
@@ -1062,7 +1062,8 @@ void irlmp_discovery_expiry(discinfo_t *expiries, int number)
                 for(i = 0; i < number; i++) {
                         /* Check if we should notify client */
                         if ((client->expir_callback) &&
-                            (client->hint_mask.word & u16ho(expiries[i].hints)
+                            (client->hint_mask.word &
+                             get_unaligned((__u16 *)expiries[i].hints)
                              & 0x7f7f) )
                                 client->expir_callback(&(expiries[i]),
                                                        EXPIRY_TIMEOUT,
@@ -1086,7 +1087,7 @@ discovery_t *irlmp_get_discovery_response(void)
 
         IRDA_ASSERT(irlmp != NULL, return NULL;);
 
-        u16ho(irlmp->discovery_rsp.data.hints) = irlmp->hints.word;
+        put_unaligned(irlmp->hints.word, (__u16 *)irlmp->discovery_rsp.data.hints);
 
         /*
          *  Set character set for device name (we use ASCII), and
diff --git a/net/irda/irnet/irnet_irda.c b/net/irda/irnet/irnet_irda.c
index 75497e55927d..cf9a4b531a98 100644
--- a/net/irda/irnet/irnet_irda.c
+++ b/net/irda/irnet/irnet_irda.c
@@ -10,6 +10,7 @@
 
 #include "irnet_irda.h"         /* Private header */
 #include <linux/seq_file.h>
+#include <asm/unaligned.h>
 
 /*
  * PPP disconnect work: we need to make sure we're in
@@ -1673,7 +1674,7 @@ irnet_discovery_indication(discinfo_t *		discovery,
   /* Notify the control channel */
   irnet_post_event(NULL, IRNET_DISCOVER,
                    discovery->saddr, discovery->daddr, discovery->info,
-                   u16ho(discovery->hints));
+                   get_unaligned((__u16 *)discovery->hints));
 
   DEXIT(IRDA_OCB_TRACE, "\n");
 }
@@ -1704,7 +1705,7 @@ irnet_expiry_indication(discinfo_t *	expiry,
   /* Notify the control channel */
   irnet_post_event(NULL, IRNET_EXPIRE,
                    expiry->saddr, expiry->daddr, expiry->info,
-                   u16ho(expiry->hints));
+                   get_unaligned((__u16 *)expiry->hints));
 
   DEXIT(IRDA_OCB_TRACE, "\n");
 }
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 9e7236ff6bcc..7470e367272b 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1251,7 +1251,7 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct sadb_msg *hdr,
                 x->sel.prefixlen_s = addr->sadb_address_prefixlen;
         }
 
-        if (x->props.mode == XFRM_MODE_TRANSPORT)
+        if (!x->sel.family)
                 x->sel.family = x->props.family;
 
         if (ext_hdrs[SADB_X_EXT_NAT_T_TYPE-1]) {
@@ -3030,6 +3030,9 @@ static int key_notify_sa_expire(struct xfrm_state *x, struct km_event *c)
 
 static int pfkey_send_notify(struct xfrm_state *x, struct km_event *c)
 {
+        if (atomic_read(&pfkey_socks_nr) == 0)
+                return 0;
+
         switch (c->event) {
         case XFRM_MSG_EXPIRE:
                 return key_notify_sa_expire(x, c);
diff --git a/net/llc/llc_sap.c b/net/llc/llc_sap.c
index e2ddde755019..008de1fc42ca 100644
--- a/net/llc/llc_sap.c
+++ b/net/llc/llc_sap.c
@@ -286,12 +286,14 @@ void llc_build_and_send_xid_pkt(struct llc_sap *sap, struct sk_buff *skb,
  *
  *      Sends received pdus to the sap state machine.
  */
-static void llc_sap_rcv(struct llc_sap *sap, struct sk_buff *skb)
+static void llc_sap_rcv(struct llc_sap *sap, struct sk_buff *skb,
+                        struct sock *sk)
 {
         struct llc_sap_state_ev *ev = llc_sap_ev(skb);
 
         ev->type   = LLC_SAP_EV_TYPE_PDU;
         ev->reason = 0;
+        skb->sk = sk;
         llc_sap_state_process(sap, skb);
 }
 
@@ -360,8 +362,7 @@ static void llc_sap_mcast(struct llc_sap *sap,
                         break;
 
                 sock_hold(sk);
-                skb_set_owner_r(skb1, sk);
-                llc_sap_rcv(sap, skb1);
+                llc_sap_rcv(sap, skb1, sk);
                 sock_put(sk);
         }
         read_unlock_bh(&sap->sk_list.lock);
@@ -381,8 +382,7 @@ void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb)
         } else {
                 struct sock *sk = llc_lookup_dgram(sap, &laddr);
                 if (sk) {
-                        skb_set_owner_r(skb, sk);
-                        llc_sap_rcv(sap, skb);
+                        llc_sap_rcv(sap, skb, sk);
                         sock_put(sk);
                 } else
                         kfree_skb(skb);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 699d97b8de5e..a9fce4afdf21 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -672,7 +672,7 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
         if (params->vlan) {
                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 
-                if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN ||
+                if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN &&
                     sdata->vif.type != IEEE80211_IF_TYPE_AP)
                         return -EINVAL;
         } else
@@ -760,7 +760,7 @@ static int ieee80211_change_station(struct wiphy *wiphy,
         if (params->vlan && params->vlan != sta->sdata->dev) {
                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 
-                if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN ||
+                if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN &&
                     vlansdata->vif.type != IEEE80211_IF_TYPE_AP) {
                         rcu_read_unlock();
                         return -EINVAL;
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index 879e7210458a..19efc3a6a932 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -255,14 +255,23 @@ void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
 void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
 {
         char buf[50];
+        struct ieee80211_key *key;
 
         if (!sdata->debugfsdir)
                 return;
 
-        sprintf(buf, "../keys/%d", sdata->default_key->debugfs.cnt);
-        sdata->debugfs.default_key =
-                debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
+        /* this is running under the key lock */
+
+        key = sdata->default_key;
+        if (key) {
+                sprintf(buf, "../keys/%d", key->debugfs.cnt);
+                sdata->debugfs.default_key =
+                        debugfs_create_symlink("default_key",
+                                               sdata->debugfsdir, buf);
+        } else
+                ieee80211_debugfs_key_remove_default(sdata);
 }
+
 void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
 {
         if (!sdata)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index c7314bf4bec2..006486b26726 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -899,7 +899,7 @@ extern const struct iw_handler_def ieee80211_iw_handler_def;
 
 
 /* ieee80211_ioctl.c */
-int ieee80211_set_freq(struct ieee80211_local *local, int freq);
+int ieee80211_set_freq(struct net_device *dev, int freq);
 /* ieee80211_sta.c */
 void ieee80211_sta_timer(unsigned long data);
 void ieee80211_sta_work(struct work_struct *work);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 80954a512185..06e88a5a036d 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -54,6 +54,15 @@ int ieee80211_if_add(struct net_device *dev, const char *name,
         if (!ndev)
                 return -ENOMEM;
 
+        ndev->needed_headroom = local->tx_headroom +
+                                4*6 /* four MAC addresses */
+                                + 2 + 2 + 2 + 2 /* ctl, dur, seq, qos */
+                                + 6 /* mesh */
+                                + 8 /* rfc1042/bridge tunnel */
+                                - ETH_HLEN /* ethernet hard_header_len */
+                                + IEEE80211_ENCRYPT_HEADROOM;
+        ndev->needed_tailroom = IEEE80211_ENCRYPT_TAILROOM;
+
         ret = dev_alloc_name(ndev, ndev->name);
         if (ret < 0)
                 goto fail;
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 150d66dbda9d..220e83be3ef4 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -380,6 +380,15 @@ void ieee80211_key_free(struct ieee80211_key *key)
         if (!key)
                 return;
 
+        if (!key->sdata) {
+                /* The key has not been linked yet, simply free it
+                 * and don't Oops */
+                if (key->conf.alg == ALG_CCMP)
+                        ieee80211_aes_key_free(key->u.ccmp.tfm);
+                kfree(key);
+                return;
+        }
+
         spin_lock_irqsave(&key->sdata->local->key_lock, flags);
         __ieee80211_key_free(key);
         spin_unlock_irqrestore(&key->sdata->local->key_lock, flags);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 915afadb0602..98c0b5e56ecc 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -511,6 +511,7 @@ static int ieee80211_stop(struct net_device *dev)
         case IEEE80211_IF_TYPE_STA:
         case IEEE80211_IF_TYPE_IBSS:
                 sdata->u.sta.state = IEEE80211_DISABLED;
+                memset(sdata->u.sta.bssid, 0, ETH_ALEN);
                 del_timer_sync(&sdata->u.sta.timer);
                 /*
                  * When we get here, the interface is marked down.
@@ -1313,7 +1314,7 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
         /*
          * Clear the TX filter mask for this STA when sending the next
          * packet. If the STA went to power save mode, this will happen
-         * happen when it wakes up for the next time.
+         * when it wakes up for the next time.
          */
         sta->flags |= WLAN_STA_CLEAR_PS_FILT;
 
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index f76bc26ae4d2..697ef67f96b6 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -397,7 +397,7 @@ int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
         put_unaligned(cpu_to_le32(sdata->u.sta.mesh_seqnum), &meshhdr->seqnum);
         sdata->u.sta.mesh_seqnum++;
 
-        return 5;
+        return 6;
 }
 
 void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 3df809222d1c..af0cd1e3e213 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -120,7 +120,7 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
                 *pos++ = WLAN_EID_PREP;
                 break;
         default:
-                kfree(skb);
+                kfree_skb(skb);
                 return -ENOTSUPP;
                 break;
         }
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 5845dc21ce85..99c2d360888e 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -158,19 +158,25 @@ int mesh_path_add(u8 *dst, struct net_device *dev)
         if (atomic_add_unless(&sdata->u.sta.mpaths, 1, MESH_MAX_MPATHS) == 0)
                 return -ENOSPC;
 
-        read_lock(&pathtbl_resize_lock);
-
         new_mpath = kzalloc(sizeof(struct mesh_path), GFP_KERNEL);
         if (!new_mpath) {
                 atomic_dec(&sdata->u.sta.mpaths);
                 err = -ENOMEM;
                 goto endadd2;
         }
+        new_node = kmalloc(sizeof(struct mpath_node), GFP_KERNEL);
+        if (!new_node) {
+                kfree(new_mpath);
+                atomic_dec(&sdata->u.sta.mpaths);
+                err = -ENOMEM;
+                goto endadd2;
+        }
+
+        read_lock(&pathtbl_resize_lock);
         memcpy(new_mpath->dst, dst, ETH_ALEN);
         new_mpath->dev = dev;
         new_mpath->flags = 0;
         skb_queue_head_init(&new_mpath->frame_queue);
-        new_node = kmalloc(sizeof(struct mpath_node), GFP_KERNEL);
         new_node->mpath = new_mpath;
         new_mpath->timer.data = (unsigned long) new_mpath;
         new_mpath->timer.function = mesh_path_timer;
@@ -202,7 +208,6 @@ int mesh_path_add(u8 *dst, struct net_device *dev)
 
 endadd:
         spin_unlock(&mesh_paths->hashwlock[hash_idx]);
-endadd2:
         read_unlock(&pathtbl_resize_lock);
         if (!err && grow) {
                 struct mesh_table *oldtbl, *newtbl;
@@ -215,10 +220,12 @@ endadd2:
                         return -ENOMEM;
                 }
                 rcu_assign_pointer(mesh_paths, newtbl);
+                write_unlock(&pathtbl_resize_lock);
+
                 synchronize_rcu();
                 mesh_table_free(oldtbl, false);
-                write_unlock(&pathtbl_resize_lock);
         }
+endadd2:
         return err;
 }
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index a5e5c31c23ab..4d2b582dd055 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -44,7 +44,7 @@
 #define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
 #define IEEE80211_SCAN_INTERVAL (2 * HZ)
 #define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
-#define IEEE80211_IBSS_JOIN_TIMEOUT (20 * HZ)
+#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
 
 #define IEEE80211_PROBE_DELAY (HZ / 33)
 #define IEEE80211_CHANNEL_TIME (HZ / 33)
@@ -665,6 +665,26 @@ static void ieee80211_authenticate(struct net_device *dev,
         mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
 }
 
+static int ieee80211_compatible_rates(struct ieee80211_sta_bss *bss,
+                                      struct ieee80211_supported_band *sband,
+                                      u64 *rates)
+{
+        int i, j, count;
+        *rates = 0;
+        count = 0;
+        for (i = 0; i < bss->supp_rates_len; i++) {
+                int rate = (bss->supp_rates[i] & 0x7F) * 5;
+
+                for (j = 0; j < sband->n_bitrates; j++)
+                        if (sband->bitrates[j].bitrate == rate) {
+                                *rates |= BIT(j);
+                                count++;
+                                break;
+                        }
+        }
+
+        return count;
+}
 
 static void ieee80211_send_assoc(struct net_device *dev,
                                  struct ieee80211_if_sta *ifsta)
@@ -673,11 +693,12 @@ static void ieee80211_send_assoc(struct net_device *dev,
         struct sk_buff *skb;
         struct ieee80211_mgmt *mgmt;
         u8 *pos, *ies;
-        int i, len;
+        int i, len, count, rates_len, supp_rates_len;
         u16 capab;
         struct ieee80211_sta_bss *bss;
         int wmm = 0;
         struct ieee80211_supported_band *sband;
+        u64 rates = 0;
 
         skb = dev_alloc_skb(local->hw.extra_tx_headroom +
                             sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
@@ -709,7 +730,17 @@ static void ieee80211_send_assoc(struct net_device *dev,
                 if (bss->wmm_ie) {
                         wmm = 1;
                 }
+
+                /* get all rates supported by the device and the AP as
+                 * some APs don't like getting a superset of their rates
+                 * in the association request (e.g. D-Link DAP 1353 in
+                 * b-only mode) */
+                rates_len = ieee80211_compatible_rates(bss, sband, &rates);
+
                 ieee80211_rx_bss_put(dev, bss);
+        } else {
+                rates = ~0;
+                rates_len = sband->n_bitrates;
         }
 
         mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
@@ -740,24 +771,36 @@ static void ieee80211_send_assoc(struct net_device *dev,
         *pos++ = ifsta->ssid_len;
         memcpy(pos, ifsta->ssid, ifsta->ssid_len);
 
+        /* add all rates which were marked to be used above */
+        supp_rates_len = rates_len;
+        if (supp_rates_len > 8)
+                supp_rates_len = 8;
+
         len = sband->n_bitrates;
-        if (len > 8)
-                len = 8;
-        pos = skb_put(skb, len + 2);
+        pos = skb_put(skb, supp_rates_len + 2);
         *pos++ = WLAN_EID_SUPP_RATES;
-        *pos++ = len;
-        for (i = 0; i < len; i++) {
-                int rate = sband->bitrates[i].bitrate;
-                *pos++ = (u8) (rate / 5);
-        }
+        *pos++ = supp_rates_len;
 
-        if (sband->n_bitrates > len) {
-                pos = skb_put(skb, sband->n_bitrates - len + 2);
-                *pos++ = WLAN_EID_EXT_SUPP_RATES;
-                *pos++ = sband->n_bitrates - len;
-                for (i = len; i < sband->n_bitrates; i++) {
+        count = 0;
+        for (i = 0; i < sband->n_bitrates; i++) {
+                if (BIT(i) & rates) {
                         int rate = sband->bitrates[i].bitrate;
                         *pos++ = (u8) (rate / 5);
+                        if (++count == 8)
+                                break;
+                }
+        }
+
+        if (count == 8) {
+                pos = skb_put(skb, rates_len - count + 2);
+                *pos++ = WLAN_EID_EXT_SUPP_RATES;
+                *pos++ = rates_len - count;
+
+                for (i++; i < sband->n_bitrates; i++) {
+                        if (BIT(i) & rates) {
+                                int rate = sband->bitrates[i].bitrate;
+                                *pos++ = (u8) (rate / 5);
+                        }
                 }
         }
 
@@ -1282,7 +1325,7 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
 
         /* prepare reordering buffer */
         tid_agg_rx->reorder_buf =
-                kmalloc(buf_size * sizeof(struct sk_buf *), GFP_ATOMIC);
+                kmalloc(buf_size * sizeof(struct sk_buff *), GFP_ATOMIC);
         if (!tid_agg_rx->reorder_buf) {
                 if (net_ratelimit())
                         printk(KERN_ERR "can not allocate reordering buffer "
@@ -1291,7 +1334,7 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
                 goto end;
         }
         memset(tid_agg_rx->reorder_buf, 0,
-                buf_size * sizeof(struct sk_buf *));
+                buf_size * sizeof(struct sk_buff *));
 
         if (local->ops->ampdu_action)
                 ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
@@ -1571,7 +1614,7 @@ void sta_addba_resp_timer_expired(unsigned long data)
          * only one argument, and both sta_info and TID are needed, so init
          * flow in sta_info_create gives the TID as data, while the timer_to_id
          * array gives the sta through container_of */
-        u16 tid = *(int *)data;
+        u16 tid = *(u8 *)data;
         struct sta_info *temp_sta = container_of((void *)data,
                 struct sta_info, timer_to_tid[tid]);
 
@@ -1619,7 +1662,7 @@ timer_expired_exit:
 void sta_rx_agg_session_timer_expired(unsigned long data)
 {
         /* not an elegant detour, but there is no choice as the timer passes
-         * only one argument, and verious sta_info are needed here, so init
+         * only one argument, and various sta_info are needed here, so init
          * flow in sta_info_create gives the TID as data, while the timer_to_id
          * array gives the sta through container_of */
         u8 *ptid = (u8 *)data;
@@ -2293,6 +2336,7 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
         u8 *pos;
         struct ieee80211_sub_if_data *sdata;
         struct ieee80211_supported_band *sband;
+        union iwreq_data wrqu;
 
         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
@@ -2315,13 +2359,10 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
         sdata->drop_unencrypted = bss->capability &
                 WLAN_CAPABILITY_PRIVACY ? 1 : 0;
 
-        res = ieee80211_set_freq(local, bss->freq);
+        res = ieee80211_set_freq(dev, bss->freq);
 
-        if (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) {
-                printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
-                       "%d MHz\n", dev->name, local->oper_channel->center_freq);
-                return -1;
-        }
+        if (res)
+                return res;
 
         /* Set beacon template */
         skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
@@ -2436,7 +2477,9 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
         ifsta->state = IEEE80211_IBSS_JOINED;
         mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
 
-        ieee80211_rx_bss_put(dev, bss);
+        memset(&wrqu, 0, sizeof(wrqu));
+        memcpy(wrqu.ap_addr.sa_data, bss->bssid, ETH_ALEN);
+        wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
 
         return res;
 }
@@ -3410,21 +3453,17 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
         struct ieee80211_sta_bss *bss, *selected = NULL;
         int top_rssi = 0, freq;
 
-        if (!(ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
-            IEEE80211_STA_AUTO_BSSID_SEL | IEEE80211_STA_AUTO_CHANNEL_SEL))) {
-                ifsta->state = IEEE80211_AUTHENTICATE;
-                ieee80211_sta_reset_auth(dev, ifsta);
-                return 0;
-        }
-
         spin_lock_bh(&local->sta_bss_lock);
         freq = local->oper_channel->center_freq;
         list_for_each_entry(bss, &local->sta_bss_list, list) {
                 if (!(bss->capability & WLAN_CAPABILITY_ESS))
                         continue;
 
-                if (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
-                    !!sdata->default_key)
+                if ((ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+                        IEEE80211_STA_AUTO_BSSID_SEL |
+                        IEEE80211_STA_AUTO_CHANNEL_SEL)) &&
+                    (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
+                     !!sdata->default_key))
                         continue;
 
                 if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
@@ -3449,7 +3488,7 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
         spin_unlock_bh(&local->sta_bss_lock);
 
         if (selected) {
-                ieee80211_set_freq(local, selected->freq);
+                ieee80211_set_freq(dev, selected->freq);
                 if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
                         ieee80211_sta_set_ssid(dev, selected->ssid,
                                                selected->ssid_len);
@@ -3484,6 +3523,7 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
         struct ieee80211_supported_band *sband;
         u8 bssid[ETH_ALEN], *pos;
         int i;
+        int ret;
         DECLARE_MAC_BUF(mac);
 
 #if 0
@@ -3528,7 +3568,9 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
                 *pos++ = (u8) (rate / 5);
         }
 
-        return ieee80211_sta_join_ibss(dev, ifsta, bss);
+        ret = ieee80211_sta_join_ibss(dev, ifsta, bss);
+        ieee80211_rx_bss_put(dev, bss);
+        return ret;
 }
 
 
@@ -3576,10 +3618,13 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
             (bss = ieee80211_rx_bss_get(dev, bssid,
                                         local->hw.conf.channel->center_freq,
                                         ifsta->ssid, ifsta->ssid_len))) {
+                int ret;
                 printk(KERN_DEBUG "%s: Selected IBSS BSSID %s"
                        " based on configured SSID\n",
                        dev->name, print_mac(mac, bssid));
-                return ieee80211_sta_join_ibss(dev, ifsta, bss);
+                ret = ieee80211_sta_join_ibss(dev, ifsta, bss);
+                ieee80211_rx_bss_put(dev, bss);
+                return ret;
         }
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
         printk(KERN_DEBUG "   did not try to join ibss\n");
@@ -4056,18 +4101,17 @@ ieee80211_sta_scan_result(struct net_device *dev,
 
         memset(&iwe, 0, sizeof(iwe));
         iwe.cmd = SIOCGIWFREQ;
-        iwe.u.freq.m = bss->freq;
-        iwe.u.freq.e = 6;
+        iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
+        iwe.u.freq.e = 0;
         current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
                                           IW_EV_FREQ_LEN);
 
         memset(&iwe, 0, sizeof(iwe));
         iwe.cmd = SIOCGIWFREQ;
-        iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
-        iwe.u.freq.e = 0;
+        iwe.u.freq.m = bss->freq;
+        iwe.u.freq.e = 6;
         current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
                                           IW_EV_FREQ_LEN);
-
         memset(&iwe, 0, sizeof(iwe));
         iwe.cmd = IWEVQUAL;
         iwe.u.qual.qual = bss->signal;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 02f436a86061..0941e5d6a522 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1091,7 +1091,7 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
         u16 fc, hdrlen, ethertype;
         u8 *payload;
         u8 dst[ETH_ALEN];
-        u8 src[ETH_ALEN];
+        u8 src[ETH_ALEN] __aligned(2);
         struct sk_buff *skb = rx->skb;
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
         DECLARE_MAC_BUF(mac);
@@ -1234,7 +1234,7 @@ ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
  */
 static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx)
 {
-        static const u8 pae_group_addr[ETH_ALEN]
+        static const u8 pae_group_addr[ETH_ALEN] __aligned(2)
                 = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 };
         struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
 
@@ -1305,11 +1305,11 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
                 if (is_multicast_ether_addr(skb->data)) {
                         if (*mesh_ttl > 0) {
                                 xmit_skb = skb_copy(skb, GFP_ATOMIC);
-                                if (!xmit_skb && net_ratelimit())
+                                if (xmit_skb)
+                                        xmit_skb->pkt_type = PACKET_OTHERHOST;
+                                else if (net_ratelimit())
                                         printk(KERN_DEBUG "%s: failed to clone "
                                                "multicast frame\n", dev->name);
-                                else
-                                        xmit_skb->pkt_type = PACKET_OTHERHOST;
                         } else
                                 IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.sta,
                                                              dropped_frames_ttl);
@@ -1395,7 +1395,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
                 padding = ((4 - subframe_len) & 0x3);
                 /* the last MSDU has no padding */
                 if (subframe_len > remaining) {
-                        printk(KERN_DEBUG "%s: wrong buffer size", dev->name);
+                        printk(KERN_DEBUG "%s: wrong buffer size\n", dev->name);
                         return RX_DROP_UNUSABLE;
                 }
 
@@ -1418,7 +1418,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
                         eth = (struct ethhdr *) skb_pull(skb, ntohs(len) +
                                                         padding);
                         if (!eth) {
-                                printk(KERN_DEBUG "%s: wrong buffer size ",
+                                printk(KERN_DEBUG "%s: wrong buffer size\n",
                                        dev->name);
                                 dev_kfree_skb(frame);
                                 return RX_DROP_UNUSABLE;
@@ -1952,7 +1952,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
                 if (!skb_new) {
                         if (net_ratelimit())
                                 printk(KERN_DEBUG "%s: failed to copy "
-                                       "multicast frame for %s",
+                                       "multicast frame for %s\n",
                                        wiphy_name(local->hw.wiphy),
                                        prev->dev->name);
                         continue;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index f35eaea98e73..c80d5899f279 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1132,7 +1132,7 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
         ieee80211_tx_handler *handler;
         struct ieee80211_tx_data tx;
         ieee80211_tx_result res = TX_DROP, res_prepare;
-        int ret, i;
+        int ret, i, retries = 0;
 
         WARN_ON(__ieee80211_queue_pending(local, control->queue));
 
@@ -1216,6 +1216,13 @@ retry:
                 if (!__ieee80211_queue_stopped(local, control->queue)) {
                         clear_bit(IEEE80211_LINK_STATE_PENDING,
                                   &local->state[control->queue]);
+                        retries++;
+                        /*
+                         * Driver bug, it's rejecting packets but
+                         * not stopping queues.
+                         */
+                        if (WARN_ON_ONCE(retries > 5))
+                                goto drop;
                         goto retry;
                 }
                 memcpy(&store->control, control,
@@ -1898,6 +1905,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
                         control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
                 control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
                 control->flags |= IEEE80211_TXCTL_NO_ACK;
+                control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
                 control->retry_limit = 1;
                 control->flags |= IEEE80211_TXCTL_CLEAR_PS_FILT;
         }
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index cc9f715c7bfc..4e97b266f907 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -34,11 +34,11 @@ void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
 
 /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
 /* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-const unsigned char rfc1042_header[] =
+const unsigned char rfc1042_header[] __aligned(2) =
         { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
 
 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-const unsigned char bridge_tunnel_header[] =
+const unsigned char bridge_tunnel_header[] __aligned(2) =
         { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
 
 
@@ -153,15 +153,15 @@ int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
         /* 7.1.3.5a.2 */
         switch (ae) {
         case 0:
-                return 5;
+                return 6;
         case 1:
-                return 11;
+                return 12;
         case 2:
-                return 17;
+                return 18;
         case 3:
-                return 23;
+                return 24;
         default:
-                return 5;
+                return 6;
         }
 }
 
@@ -389,6 +389,41 @@ void ieee80211_iterate_active_interfaces(
         struct ieee80211_local *local = hw_to_local(hw);
         struct ieee80211_sub_if_data *sdata;
 
+        rtnl_lock();
+
+        list_for_each_entry(sdata, &local->interfaces, list) {
+                switch (sdata->vif.type) {
+                case IEEE80211_IF_TYPE_INVALID:
+                case IEEE80211_IF_TYPE_MNTR:
+                case IEEE80211_IF_TYPE_VLAN:
+                        continue;
+                case IEEE80211_IF_TYPE_AP:
+                case IEEE80211_IF_TYPE_STA:
+                case IEEE80211_IF_TYPE_IBSS:
+                case IEEE80211_IF_TYPE_WDS:
+                case IEEE80211_IF_TYPE_MESH_POINT:
+                        break;
+                }
+                if (sdata->dev == local->mdev)
+                        continue;
+                if (netif_running(sdata->dev))
+                        iterator(data, sdata->dev->dev_addr,
+                                 &sdata->vif);
+        }
+
+        rtnl_unlock();
+}
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
+
+void ieee80211_iterate_active_interfaces_atomic(
+        struct ieee80211_hw *hw,
+        void (*iterator)(void *data, u8 *mac,
+                         struct ieee80211_vif *vif),
+        void *data)
+{
+        struct ieee80211_local *local = hw_to_local(hw);
+        struct ieee80211_sub_if_data *sdata;
+
         rcu_read_lock();
 
         list_for_each_entry_rcu(sdata, &local->interfaces, list) {
@@ -413,4 +448,4 @@ void ieee80211_iterate_active_interfaces(
 
         rcu_read_unlock();
 }
-EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 76e1de1dc735..e8404212ad57 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -95,6 +95,13 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
                         }
                 }
 
+                if (alg == ALG_WEP &&
+                        key_len != LEN_WEP40 && key_len != LEN_WEP104) {
+                        ieee80211_key_free(key);
+                        err = -EINVAL;
+                        goto out_unlock;
+                }
+
                 ieee80211_key_link(key, sdata, sta);
 
                 if (set_tx_key || (!sta && !sdata->default_key && key))
@@ -209,7 +216,6 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev,
         range->num_frequency = c;
 
         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
-        IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 
@@ -291,14 +297,22 @@ static int ieee80211_ioctl_giwmode(struct net_device *dev,
         return 0;
 }
 
-int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
+int ieee80211_set_freq(struct net_device *dev, int freqMHz)
 {
         int ret = -EINVAL;
         struct ieee80211_channel *chan;
+        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
         chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
 
         if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
+                if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
+                    chan->flags & IEEE80211_CHAN_NO_IBSS) {
+                        printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
+                                "%d MHz\n", dev->name, chan->center_freq);
+                        return ret;
+                }
                 local->oper_channel = chan;
 
                 if (local->sta_sw_scanning || local->sta_hw_scanning)
@@ -316,7 +330,6 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev,
                                    struct iw_request_info *info,
                                    struct iw_freq *freq, char *extra)
 {
-        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
         if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
@@ -330,14 +343,14 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev,
                                         IEEE80211_STA_AUTO_CHANNEL_SEL;
                         return 0;
                 } else
-                        return ieee80211_set_freq(local,
+                        return ieee80211_set_freq(dev,
                                 ieee80211_channel_to_frequency(freq->m));
         } else {
                 int i, div = 1000000;
                 for (i = 0; i < freq->e; i++)
                         div /= 10;
                 if (div > 0)
-                        return ieee80211_set_freq(local, freq->m / div);
+                        return ieee80211_set_freq(dev, freq->m / div);
                 else
                         return -EINVAL;
         }
@@ -490,9 +503,15 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
         if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
             sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
-                ap_addr->sa_family = ARPHRD_ETHER;
-                memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
-                return 0;
+                if (sdata->u.sta.state == IEEE80211_ASSOCIATED ||
+                    sdata->u.sta.state == IEEE80211_IBSS_JOINED) {
+                        ap_addr->sa_family = ARPHRD_ETHER;
+                        memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
+                        return 0;
+                } else {
+                        memset(&ap_addr->sa_data, 0, ETH_ALEN);
+                        return 0;
+                }
         } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
                 ap_addr->sa_family = ARPHRD_ETHER;
                 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 64faa3dc488f..5d09e8698b57 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -323,8 +323,7 @@ static void wme_qdiscop_destroy(struct Qdisc* qd)
         struct ieee80211_hw *hw = &local->hw;
         int queue;
 
-        tcf_destroy_chain(q->filter_list);
-        q->filter_list = NULL;
+        tcf_destroy_chain(&q->filter_list);
 
         for (queue=0; queue < hw->queues; queue++) {
                 skb_queue_purge(&q->requeued[queue]);
@@ -394,7 +393,8 @@ static int wme_qdiscop_init(struct Qdisc *qd, struct nlattr *opt)
                                                  qd->handle);
                 if (!q->queues[i]) {
                         q->queues[i] = &noop_qdisc;
-                        printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
+                        printk(KERN_ERR "%s child qdisc %i creation failed\n",
+                               dev->name, i);
                 }
         }
 
@@ -672,7 +672,7 @@ int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
 #ifdef CONFIG_MAC80211_HT_DEBUG
                         if (net_ratelimit())
                                 printk(KERN_DEBUG "allocated aggregation queue"
-                                        " %d tid %d addr %s pool=0x%lX",
+                                        " %d tid %d addr %s pool=0x%lX\n",
                                         i, tid, print_mac(mac, sta->addr),
                                         q->qdisc_pool[0]);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index c4b1799da5d7..662c1ccfee26 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -196,8 +196,6 @@ destroy_conntrack(struct nf_conntrack *nfct)
         if (l4proto && l4proto->destroy)
                 l4proto->destroy(ct);
 
-        nf_ct_ext_destroy(ct);
-
         rcu_read_unlock();
 
         spin_lock_bh(&nf_conntrack_lock);
@@ -520,6 +518,7 @@ static void nf_conntrack_free_rcu(struct rcu_head *head)
 
 void nf_conntrack_free(struct nf_conn *ct)
 {
+        nf_ct_ext_destroy(ct);
         call_rcu(&ct->rcu, nf_conntrack_free_rcu);
 }
 EXPORT_SYMBOL_GPL(nf_conntrack_free);
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index e31beeb33b2b..e8f0dead267f 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -587,10 +587,10 @@ int __init nf_conntrack_expect_init(void)
         return 0;
 
 err3:
+        kmem_cache_destroy(nf_ct_expect_cachep);
+err2:
         nf_ct_free_hashtable(nf_ct_expect_hash, nf_ct_expect_vmalloc,
                              nf_ct_expect_hsize);
-err2:
-        kmem_cache_destroy(nf_ct_expect_cachep);
 err1:
         return err;
 }
diff --git a/net/netfilter/nf_conntrack_extend.c b/net/netfilter/nf_conntrack_extend.c
index bcc19fa4ed1e..8a3f8b34e466 100644
--- a/net/netfilter/nf_conntrack_extend.c
+++ b/net/netfilter/nf_conntrack_extend.c
@@ -59,12 +59,19 @@ nf_ct_ext_create(struct nf_ct_ext **ext, enum nf_ct_ext_id id, gfp_t gfp)
         if (!*ext)
                 return NULL;
 
+        INIT_RCU_HEAD(&(*ext)->rcu);
         (*ext)->offset[id] = off;
         (*ext)->len = len;
 
         return (void *)(*ext) + off;
 }
 
+static void __nf_ct_ext_free_rcu(struct rcu_head *head)
+{
+        struct nf_ct_ext *ext = container_of(head, struct nf_ct_ext, rcu);
+        kfree(ext);
+}
+
 void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
 {
         struct nf_ct_ext *new;
@@ -106,7 +113,7 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
                                         (void *)ct->ext + ct->ext->offset[i]);
                         rcu_read_unlock();
                 }
-                kfree(ct->ext);
+                call_rcu(&ct->ext->rcu, __nf_ct_ext_free_rcu);
                 ct->ext = new;
         }
 
diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c
index 95da1a24aab7..2f83c158934d 100644
--- a/net/netfilter/nf_conntrack_h323_main.c
+++ b/net/netfilter/nf_conntrack_h323_main.c
@@ -619,6 +619,7 @@ static const struct nf_conntrack_expect_policy h245_exp_policy = {
 static struct nf_conntrack_helper nf_conntrack_helper_h245 __read_mostly = {
         .name                   = "H.245",
         .me                     = THIS_MODULE,
+        .tuple.src.l3num        = AF_UNSPEC,
         .tuple.dst.protonum     = IPPROTO_UDP,
         .help                   = h245_help,
         .expect_policy          = &h245_exp_policy,
@@ -1765,6 +1766,7 @@ static void __exit nf_conntrack_h323_fini(void)
         nf_conntrack_helper_unregister(&nf_conntrack_helper_ras[0]);
         nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[1]);
         nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[0]);
+        nf_conntrack_helper_unregister(&nf_conntrack_helper_h245);
         kfree(h323_buffer);
         pr_debug("nf_ct_h323: fini\n");
 }
@@ -1777,28 +1779,34 @@ static int __init nf_conntrack_h323_init(void)
         h323_buffer = kmalloc(65536, GFP_KERNEL);
         if (!h323_buffer)
                 return -ENOMEM;
-        ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[0]);
+        ret = nf_conntrack_helper_register(&nf_conntrack_helper_h245);
         if (ret < 0)
                 goto err1;
-        ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[1]);
+        ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[0]);
         if (ret < 0)
                 goto err2;
-        ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[0]);
+        ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[1]);
         if (ret < 0)
                 goto err3;
-        ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[1]);
+        ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[0]);
         if (ret < 0)
                 goto err4;
+        ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[1]);
+        if (ret < 0)
+                goto err5;
         pr_debug("nf_ct_h323: init success\n");
         return 0;
 
-err4:
+err5:
         nf_conntrack_helper_unregister(&nf_conntrack_helper_ras[0]);
-err3:
+err4:
         nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[1]);
-err2:
+err3:
         nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[0]);
+err2:
+        nf_conntrack_helper_unregister(&nf_conntrack_helper_h245);
 err1:
+        kfree(h323_buffer);
         return ret;
 }
 
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 16774ecd1c4e..0edefcfc5949 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -472,6 +472,9 @@ static int ctnetlink_conntrack_event(struct notifier_block *this,
                 goto nla_put_failure;
         nla_nest_end(skb, nest_parms);
 
+        if (ctnetlink_dump_id(skb, ct) < 0)
+                goto nla_put_failure;
+
         if (events & IPCT_DESTROY) {
                 if (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 ||
                     ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0)
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index ba94004fe323..271cd01d57ae 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -331,12 +331,13 @@ static unsigned int get_conntrack_index(const struct tcphdr *tcph)
 
    I.   Upper bound for valid data:     seq <= sender.td_maxend
    II.  Lower bound for valid data:     seq + len >= sender.td_end - receiver.td_maxwin
-   III. Upper bound for valid ack:      sack <= receiver.td_end
-   IV.  Lower bound for valid ack:      ack >= receiver.td_end - MAXACKWINDOW
+   III. Upper bound for valid (s)ack:   sack <= receiver.td_end
+   IV.  Lower bound for valid (s)ack:   sack >= receiver.td_end - MAXACKWINDOW
 
-   where sack is the highest right edge of sack block found in the packet.
+   where sack is the highest right edge of sack block found in the packet
+   or ack in the case of packet without SACK option.
 
-   The upper bound limit for a valid ack is not ignored -
+   The upper bound limit for a valid (s)ack is not ignored -
    we doesn't have to deal with fragments.
 */
 
@@ -606,12 +607,12 @@ static bool tcp_in_window(const struct nf_conn *ct,
                  before(seq, sender->td_maxend + 1),
                  after(end, sender->td_end - receiver->td_maxwin - 1),
                  before(sack, receiver->td_end + 1),
-                 after(ack, receiver->td_end - MAXACKWINDOW(sender)));
+                 after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1));
 
         if (before(seq, sender->td_maxend + 1) &&
             after(end, sender->td_end - receiver->td_maxwin - 1) &&
             before(sack, receiver->td_end + 1) &&
-            after(ack, receiver->td_end - MAXACKWINDOW(sender))) {
+            after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1)) {
                 /*
                  * Take into account window scaling (RFC 1323).
                  */
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index bc11d7092032..9fda6ee95a31 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -92,10 +92,6 @@ void nf_log_packet(int pf,
                 vsnprintf(prefix, sizeof(prefix), fmt, args);
                 va_end(args);
                 logger->logfn(pf, hooknum, skb, in, out, loginfo, prefix);
-        } else if (net_ratelimit()) {
-                printk(KERN_WARNING "nf_log_packet: can\'t log since "
-                       "no backend logging module loaded in! Please either "
-                       "load one, or disable logging explicitly\n");
         }
         rcu_read_unlock();
 }
diff --git a/net/netfilter/xt_connlimit.c b/net/netfilter/xt_connlimit.c
index 2e89a00df92c..70907f6baac3 100644
--- a/net/netfilter/xt_connlimit.c
+++ b/net/netfilter/xt_connlimit.c
@@ -73,7 +73,8 @@ connlimit_iphash6(const union nf_inet_addr *addr,
 static inline bool already_closed(const struct nf_conn *conn)
 {
         if (nf_ct_protonum(conn) == IPPROTO_TCP)
-                return conn->proto.tcp.state == TCP_CONNTRACK_TIME_WAIT;
+                return conn->proto.tcp.state == TCP_CONNTRACK_TIME_WAIT ||
+                       conn->proto.tcp.state == TCP_CONNTRACK_CLOSE;
         else
                 return 0;
 }
diff --git a/net/netfilter/xt_iprange.c b/net/netfilter/xt_iprange.c
index 500528d60cd7..c63e9333c755 100644
--- a/net/netfilter/xt_iprange.c
+++ b/net/netfilter/xt_iprange.c
@@ -179,3 +179,5 @@ module_exit(iprange_mt_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>, Jan Engelhardt <jengelh@computergmbh.de>");
 MODULE_DESCRIPTION("Xtables: arbitrary IPv4 range matching");
+MODULE_ALIAS("ipt_iprange");
+MODULE_ALIAS("ip6t_iprange");
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 0099da5b2591..52b2611a6eb6 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -1534,7 +1534,7 @@ static int netlbl_unlabel_staticlistdef(struct sk_buff *skb,
                 }
         }
         list_for_each_entry_rcu(addr6, &iface->addr6_list, list) {
-                if (addr6->valid || iter_addr6++ < skip_addr6)
+                if (!addr6->valid || iter_addr6++ < skip_addr6)
                         continue;
                 if (netlbl_unlabel_staticlist_gen(NLBL_UNLABEL_C_STATICLISTDEF,
                                            iface,
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 9b97f8006c9c..349aba189558 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -886,7 +886,7 @@ retry:
                 return netlink_unicast_kernel(sk, skb);
 
         if (sk_filter(sk, skb)) {
-                int err = skb->len;
+                err = skb->len;
                 kfree_skb(skb);
                 sock_put(sk);
                 return err;
diff --git a/net/netlink/attr.c b/net/netlink/attr.c
index feb326f4a752..2d106cfe1d27 100644
--- a/net/netlink/attr.c
+++ b/net/netlink/attr.c
@@ -132,6 +132,7 @@ errout:
  * @maxtype: maximum attribute type to be expected
  * @head: head of attribute stream
  * @len: length of attribute stream
+ * @policy: validation policy
  *
  * Parses a stream of attributes and stores a pointer to each attribute in
  * the tb array accessable via the attribute type. Attributes with a type
@@ -194,7 +195,7 @@ struct nlattr *nla_find(struct nlattr *head, int len, int attrtype)
 /**
  * nla_strlcpy - Copy string attribute payload into a sized buffer
  * @dst: where to copy the string to
- * @src: attribute to copy the string from
+ * @nla: attribute to copy the string from
  * @dstsize: size of destination buffer
  *
  * Copies at most dstsize - 1 bytes into the destination buffer.
@@ -340,9 +341,9 @@ struct nlattr *nla_reserve(struct sk_buff *skb, int attrtype, int attrlen)
 }
 
 /**
- * nla_reserve - reserve room for attribute without header
+ * nla_reserve_nohdr - reserve room for attribute without header
  * @skb: socket buffer to reserve room on
- * @len: length of attribute payload
+ * @attrlen: length of attribute payload
  *
  * Reserves room for attribute payload without a header.
  *
@@ -400,13 +401,13 @@ void __nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data)
  * @attrlen: length of attribute payload
  * @data: head of attribute payload
  *
- * Returns -1 if the tailroom of the skb is insufficient to store
+ * Returns -EMSGSIZE if the tailroom of the skb is insufficient to store
  * the attribute header and payload.
  */
 int nla_put(struct sk_buff *skb, int attrtype, int attrlen, const void *data)
 {
         if (unlikely(skb_tailroom(skb) < nla_total_size(attrlen)))
-                return -1;
+                return -EMSGSIZE;
 
         __nla_put(skb, attrtype, attrlen, data);
         return 0;
@@ -418,13 +419,13 @@ int nla_put(struct sk_buff *skb, int attrtype, int attrlen, const void *data)
  * @attrlen: length of attribute payload
  * @data: head of attribute payload
  *
- * Returns -1 if the tailroom of the skb is insufficient to store
+ * Returns -EMSGSIZE if the tailroom of the skb is insufficient to store
  * the attribute payload.
  */
 int nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data)
 {
         if (unlikely(skb_tailroom(skb) < NLA_ALIGN(attrlen)))
-                return -1;
+                return -EMSGSIZE;
 
         __nla_put_nohdr(skb, attrlen, data);
         return 0;
@@ -436,13 +437,13 @@ int nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data)
  * @attrlen: length of attribute payload
  * @data: head of attribute payload
  *
- * Returns -1 if the tailroom of the skb is insufficient to store
+ * Returns -EMSGSIZE if the tailroom of the skb is insufficient to store
  * the attribute payload.
  */
 int nla_append(struct sk_buff *skb, int attrlen, const void *data)
 {
         if (unlikely(skb_tailroom(skb) < NLA_ALIGN(attrlen)))
-                return -1;
+                return -EMSGSIZE;
 
         memcpy(skb_put(skb, attrlen), data, attrlen);
         return 0;
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index d16929c9b4bc..3e1191cecaf0 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -444,8 +444,11 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                 if (ops->dumpit == NULL)
                         return -EOPNOTSUPP;
 
-                return netlink_dump_start(genl_sock, skb, nlh,
-                                          ops->dumpit, ops->done);
+                genl_unlock();
+                err = netlink_dump_start(genl_sock, skb, nlh,
+                                         ops->dumpit, ops->done);
+                genl_lock();
+                return err;
         }
 
         if (ops->doit == NULL)
@@ -554,7 +557,8 @@ static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
         return genlmsg_end(skb, hdr);
 
 nla_put_failure:
-        return genlmsg_cancel(skb, hdr);
+        genlmsg_cancel(skb, hdr);
+        return -EMSGSIZE;
 }
 
 static int ctrl_fill_mcgrp_info(struct genl_multicast_group *grp, u32 pid,
@@ -590,7 +594,8 @@ static int ctrl_fill_mcgrp_info(struct genl_multicast_group *grp, u32 pid,
         return genlmsg_end(skb, hdr);
 
 nla_put_failure:
-        return genlmsg_cancel(skb, hdr);
+        genlmsg_cancel(skb, hdr);
+        return -EMSGSIZE;
 }
 
 static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
@@ -601,9 +606,6 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
         int chains_to_skip = cb->args[0];
         int fams_to_skip = cb->args[1];
 
-        if (chains_to_skip != 0)
-                genl_lock();
-
         for (i = 0; i < GENL_FAM_TAB_SIZE; i++) {
                 if (i < chains_to_skip)
                         continue;
@@ -621,9 +623,6 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
         }
 
 errout:
-        if (chains_to_skip != 0)
-                genl_unlock();
-
         cb->args[0] = i;
         cb->args[1] = n;
 
@@ -768,7 +767,7 @@ static int __init genl_init(void)
 
         /* we'll bump the group number right afterwards */
         genl_sock = netlink_kernel_create(&init_net, NETLINK_GENERIC, 0,
-                                          genl_rcv, NULL, THIS_MODULE);
+                                          genl_rcv, &genl_mutex, THIS_MODULE);
         if (genl_sock == NULL)
                 panic("GENL: Cannot initialize generic netlink\n");
 
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 25070240d4ae..2cee87da4441 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -743,7 +743,7 @@ static int packet_sendmsg(struct kiocb *iocb, struct socket *sock,
         if (len > dev->mtu+reserve)
                 goto out_unlock;
 
-        skb = sock_alloc_send_skb(sk, len + LL_RESERVED_SPACE(dev),
+        skb = sock_alloc_send_skb(sk, len + LL_ALLOCATED_SPACE(dev),
                                 msg->msg_flags & MSG_DONTWAIT, &err);
         if (skb==NULL)
                 goto out_unlock;
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 82adfe6447d7..9437b27ff84d 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -106,17 +106,6 @@ config NET_SCH_PRIO
           To compile this code as a module, choose M here: the
           module will be called sch_prio.
 
-config NET_SCH_RR
-        tristate "Multi Band Round Robin Queuing (RR)"
-        select NET_SCH_PRIO
-        ---help---
-          Say Y here if you want to use an n-band round robin packet
-          scheduler.
-
-          The module uses sch_prio for its framework and is aliased as
-          sch_rr, so it will load sch_prio, although it is referred
-          to using sch_rr.
-
 config NET_SCH_RED
         tristate "Random Early Detection (RED)"
         ---help---
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 1086df7478bc..9360fc81e8c7 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -220,7 +220,7 @@ replay:
                 tp = kzalloc(sizeof(*tp), GFP_KERNEL);
                 if (tp == NULL)
                         goto errout;
-                err = -EINVAL;
+                err = -ENOENT;
                 tp_ops = tcf_proto_lookup_ops(tca[TCA_KIND]);
                 if (tp_ops == NULL) {
 #ifdef CONFIG_KMOD
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index c40773cdbe45..10f01ad04380 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1252,12 +1252,12 @@ void tcf_destroy(struct tcf_proto *tp)
         kfree(tp);
 }
 
-void tcf_destroy_chain(struct tcf_proto *fl)
+void tcf_destroy_chain(struct tcf_proto **fl)
 {
         struct tcf_proto *tp;
 
-        while ((tp = fl) != NULL) {
-                fl = tp->next;
+        while ((tp = *fl) != NULL) {
+                *fl = tp->next;
                 tcf_destroy(tp);
         }
 }
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 335273416384..db0e23ae85f8 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -160,7 +160,7 @@ static void atm_tc_put(struct Qdisc *sch, unsigned long cl)
         *prev = flow->next;
         pr_debug("atm_tc_put: qdisc %p\n", flow->q);
         qdisc_destroy(flow->q);
-        tcf_destroy_chain(flow->filter_list);
+        tcf_destroy_chain(&flow->filter_list);
         if (flow->sock) {
                 pr_debug("atm_tc_put: f_count %d\n",
                         file_count(flow->sock->file));
@@ -586,10 +586,11 @@ static void atm_tc_destroy(struct Qdisc *sch)
         struct atm_flow_data *flow;
 
         pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p);
+        for (flow = p->flows; flow; flow = flow->next)
+                tcf_destroy_chain(&flow->filter_list);
+
         /* races ? */
         while ((flow = p->flows)) {
-                tcf_destroy_chain(flow->filter_list);
-                flow->filter_list = NULL;
                 if (flow->ref > 1)
                         printk(KERN_ERR "atm_destroy: %p->ref = %d\n", flow,
                                flow->ref);
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 09969c1fbc08..2a3c97f7dc63 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1704,7 +1704,7 @@ static void cbq_destroy_class(struct Qdisc *sch, struct cbq_class *cl)
 
         BUG_TRAP(!cl->filters);
 
-        tcf_destroy_chain(cl->filter_list);
+        tcf_destroy_chain(&cl->filter_list);
         qdisc_destroy(cl->q);
         qdisc_put_rtab(cl->R_tab);
         gen_kill_estimator(&cl->bstats, &cl->rate_est);
@@ -1728,10 +1728,8 @@ cbq_destroy(struct Qdisc* sch)
          * be bound to classes which have been destroyed already. --TGR '04
          */
         for (h = 0; h < 16; h++) {
-                for (cl = q->classes[h]; cl; cl = cl->next) {
-                        tcf_destroy_chain(cl->filter_list);
-                        cl->filter_list = NULL;
-                }
+                for (cl = q->classes[h]; cl; cl = cl->next)
+                        tcf_destroy_chain(&cl->filter_list);
         }
         for (h = 0; h < 16; h++) {
                 struct cbq_class *next;
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 0df911fd67b1..c4c1317cd47d 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -416,7 +416,7 @@ static void dsmark_destroy(struct Qdisc *sch)
 
         pr_debug("dsmark_destroy(sch %p,[qdisc %p])\n", sch, p);
 
-        tcf_destroy_chain(p->filter_list);
+        tcf_destroy_chain(&p->filter_list);
         qdisc_destroy(p->q);
         kfree(p->mask);
 }
@@ -444,7 +444,8 @@ static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl,
         return nla_nest_end(skb, opts);
 
 nla_put_failure:
-        return nla_nest_cancel(skb, opts);
+        nla_nest_cancel(skb, opts);
+        return -EMSGSIZE;
 }
 
 static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
@@ -466,7 +467,8 @@ static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
         return nla_nest_end(skb, opts);
 
 nla_put_failure:
-        return nla_nest_cancel(skb, opts);
+        nla_nest_cancel(skb, opts);
+        return -EMSGSIZE;
 }
 
 static const struct Qdisc_class_ops dsmark_class_ops = {
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index d355e5e47fe3..13afa7214392 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -468,7 +468,7 @@ struct Qdisc *qdisc_alloc(struct net_device *dev, struct Qdisc_ops *ops)
 
         return sch;
 errout:
-        return ERR_PTR(-err);
+        return ERR_PTR(err);
 }
 
 struct Qdisc * qdisc_create_dflt(struct net_device *dev, struct Qdisc_ops *ops,
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c
index 3a9d226ff1e4..c89fba56db56 100644
--- a/net/sched/sch_gred.c
+++ b/net/sched/sch_gred.c
@@ -582,7 +582,8 @@ append_opt:
         return nla_nest_end(skb, opts);
 
 nla_put_failure:
-        return nla_nest_cancel(skb, opts);
+        nla_nest_cancel(skb, opts);
+        return -EMSGSIZE;
 }
 
 static void gred_destroy(struct Qdisc *sch)
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 87293d0db1d7..e817aa00441d 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1123,7 +1123,7 @@ hfsc_destroy_class(struct Qdisc *sch, struct hfsc_class *cl)
 {
         struct hfsc_sched *q = qdisc_priv(sch);
 
-        tcf_destroy_chain(cl->filter_list);
+        tcf_destroy_chain(&cl->filter_list);
         qdisc_destroy(cl->qdisc);
         gen_kill_estimator(&cl->bstats, &cl->rate_est);
         if (cl != &q->root)
@@ -1360,7 +1360,7 @@ hfsc_dump_class(struct Qdisc *sch, unsigned long arg, struct sk_buff *skb,
 
  nla_put_failure:
         nla_nest_cancel(skb, nest);
-        return -1;
+        return -EMSGSIZE;
 }
 
 static int
@@ -1541,6 +1541,10 @@ hfsc_destroy_qdisc(struct Qdisc *sch)
         unsigned int i;
 
         for (i = 0; i < HFSC_HSIZE; i++) {
+                list_for_each_entry(cl, &q->clhash[i], hlist)
+                        tcf_destroy_chain(&cl->filter_list);
+        }
+        for (i = 0; i < HFSC_HSIZE; i++) {
                 list_for_each_entry_safe(cl, next, &q->clhash[i], hlist)
                         hfsc_destroy_class(sch, cl);
         }
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 5bc1ed490180..3fb58f428f72 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -28,6 +28,7 @@
  * $Id: sch_htb.c,v 1.25 2003/12/07 11:08:25 devik Exp devik $
  */
 #include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
@@ -53,13 +54,17 @@
 */
 
 #define HTB_HSIZE 16            /* classid hash size */
-#define HTB_HYSTERESIS 1        /* whether to use mode hysteresis for speedup */
+static int htb_hysteresis __read_mostly = 0; /* whether to use mode hysteresis for speedup */
 #define HTB_VER 0x30011         /* major must be matched with number suplied by TC as version */
 
 #if HTB_VER >> 16 != TC_HTB_PROTOVER
 #error "Mismatched sch_htb.c and pkt_sch.h"
 #endif
 
+/* Module parameter and sysfs export */
+module_param    (htb_hysteresis, int, 0640);
+MODULE_PARM_DESC(htb_hysteresis, "Hysteresis mode, less CPU load, less accurate");
+
 /* used internaly to keep status of single class */
 enum htb_cmode {
         HTB_CANT_SEND,          /* class can't send and can't borrow */
@@ -462,19 +467,21 @@ static void htb_deactivate_prios(struct htb_sched *q, struct htb_class *cl)
                 htb_remove_class_from_row(q, cl, mask);
 }
 
-#if HTB_HYSTERESIS
 static inline long htb_lowater(const struct htb_class *cl)
 {
-        return cl->cmode != HTB_CANT_SEND ? -cl->cbuffer : 0;
+        if (htb_hysteresis)
+                return cl->cmode != HTB_CANT_SEND ? -cl->cbuffer : 0;
+        else
+                return 0;
 }
 static inline long htb_hiwater(const struct htb_class *cl)
 {
-        return cl->cmode == HTB_CAN_SEND ? -cl->buffer : 0;
+        if (htb_hysteresis)
+                return cl->cmode == HTB_CAN_SEND ? -cl->buffer : 0;
+        else
+                return 0;
 }
-#else
-#define htb_lowater(cl) (0)
-#define htb_hiwater(cl) (0)
-#endif
+
 
 /**
  * htb_class_mode - computes and returns current class mode
@@ -1231,7 +1238,7 @@ static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
         qdisc_put_rtab(cl->rate);
         qdisc_put_rtab(cl->ceil);
 
-        tcf_destroy_chain(cl->filter_list);
+        tcf_destroy_chain(&cl->filter_list);
 
         while (!list_empty(&cl->children))
                 htb_destroy_class(sch, list_entry(cl->children.next,
@@ -1260,7 +1267,7 @@ static void htb_destroy(struct Qdisc *sch)
            and surprisingly it worked in 2.4. But it must precede it
            because filter need its target class alive to be able to call
            unbind_filter on it (without Oops). */
-        tcf_destroy_chain(q->filter_list);
+        tcf_destroy_chain(&q->filter_list);
 
         while (!list_empty(&q->root))
                 htb_destroy_class(sch, list_entry(q->root.next,
diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c
index 274b1ddb160c..956c80ad5965 100644
--- a/net/sched/sch_ingress.c
+++ b/net/sched/sch_ingress.c
@@ -104,7 +104,7 @@ static void ingress_destroy(struct Qdisc *sch)
 {
         struct ingress_qdisc_data *p = qdisc_priv(sch);
 
-        tcf_destroy_chain(p->filter_list);
+        tcf_destroy_chain(&p->filter_list);
 }
 
 static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 4aa2b45dad0a..5532f1031ab5 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -219,7 +219,7 @@ prio_destroy(struct Qdisc* sch)
         int prio;
         struct prio_sched_data *q = qdisc_priv(sch);
 
-        tcf_destroy_chain(q->filter_list);
+        tcf_destroy_chain(&q->filter_list);
         for (prio=0; prio<q->bands; prio++)
                 qdisc_destroy(q->queues[prio]);
 }
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 3dcd493f4f4a..5c569853b9c0 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -281,7 +281,8 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb)
         return nla_nest_end(skb, opts);
 
 nla_put_failure:
-        return nla_nest_cancel(skb, opts);
+        nla_nest_cancel(skb, opts);
+        return -EMSGSIZE;
 }
 
 static int red_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index f0463d757a98..6a97afbfb952 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -520,7 +520,7 @@ static void sfq_destroy(struct Qdisc *sch)
 {
         struct sfq_sched_data *q = qdisc_priv(sch);
 
-        tcf_destroy_chain(q->filter_list);
+        tcf_destroy_chain(&q->filter_list);
         q->perturb_period = 0;
         del_timer_sync(&q->perturb_timer);
 }
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index b4cd2b71953f..024c3ebd9661 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -474,6 +474,15 @@ static void sctp_association_destroy(struct sctp_association *asoc)
 void sctp_assoc_set_primary(struct sctp_association *asoc,
                             struct sctp_transport *transport)
 {
+        int changeover = 0;
+
+        /* it's a changeover only if we already have a primary path
+         * that we are changing
+         */
+        if (asoc->peer.primary_path != NULL &&
+            asoc->peer.primary_path != transport)
+                changeover = 1 ;
+
         asoc->peer.primary_path = transport;
 
         /* Set a default msg_name for events. */
@@ -499,12 +508,12 @@ void sctp_assoc_set_primary(struct sctp_association *asoc,
          * double switch to the same destination address.
          */
         if (transport->cacc.changeover_active)
-                transport->cacc.cycling_changeover = 1;
+                transport->cacc.cycling_changeover = changeover;
 
         /* 2) The sender MUST set CHANGEOVER_ACTIVE to indicate that
          * a changeover has occurred.
          */
-        transport->cacc.changeover_active = 1;
+        transport->cacc.changeover_active = changeover;
 
         /* 3) The sender MUST store the next TSN to be sent in
          * next_tsn_at_change.
@@ -1203,6 +1212,9 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
         struct list_head *head = &asoc->peer.transport_addr_list;
         struct list_head *pos;
 
+        if (asoc->peer.transport_count == 1)
+                return;
+
         /* Find the next transport in a round-robin fashion. */
         t = asoc->peer.retran_path;
         pos = &t->transports;
@@ -1217,6 +1229,15 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
 
                 t = list_entry(pos, struct sctp_transport, transports);
 
+                /* We have exhausted the list, but didn't find any
+                 * other active transports.  If so, use the next
+                 * transport.
+                 */
+                if (t == asoc->peer.retran_path) {
+                        t = next;
+                        break;
+                }
+
                 /* Try to find an active transport. */
 
                 if ((t->state == SCTP_ACTIVE) ||
@@ -1229,15 +1250,6 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
                         if (!next)
                                 next = t;
                 }
-
-                /* We have exhausted the list, but didn't find any
-                 * other active transports.  If so, use the next
-                 * transport.
-                 */
-                if (t == asoc->peer.retran_path) {
-                        t = next;
-                        break;
-                }
         }
 
         asoc->peer.retran_path = t;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index e45e44c60635..a2f4d4d51593 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -299,7 +299,8 @@ static inline int sctp_v6_addr_match_len(union sctp_addr *s1,
 /* Fills in the source address(saddr) based on the destination address(daddr)
  * and asoc's bind address list.
  */
-static void sctp_v6_get_saddr(struct sctp_association *asoc,
+static void sctp_v6_get_saddr(struct sctp_sock *sk,
+                              struct sctp_association *asoc,
                               struct dst_entry *dst,
                               union sctp_addr *daddr,
                               union sctp_addr *saddr)
@@ -318,7 +319,7 @@ static void sctp_v6_get_saddr(struct sctp_association *asoc,
         if (!asoc) {
                 ipv6_dev_get_saddr(dst ? ip6_dst_idev(dst)->dev : NULL,
                                    &daddr->v6.sin6_addr,
-                                   inet6_sk(asoc->base.sk)->srcprefs,
+                                   inet6_sk(&sk->inet.sk)->srcprefs,
                                    &saddr->v6.sin6_addr);
                 SCTP_DEBUG_PRINTK("saddr from ipv6_get_saddr: " NIP6_FMT "\n",
                                   NIP6(saddr->v6.sin6_addr));
@@ -726,6 +727,11 @@ static void sctp_v6_seq_dump_addr(struct seq_file *seq, union sctp_addr *addr)
         seq_printf(seq, NIP6_FMT " ", NIP6(addr->v6.sin6_addr));
 }
 
+static void sctp_v6_ecn_capable(struct sock *sk)
+{
+        inet6_sk(sk)->tclass |= INET_ECN_ECT_0;
+}
+
 /* Initialize a PF_INET6 socket msg_name. */
 static void sctp_inet6_msgname(char *msgname, int *addr_len)
 {
@@ -996,6 +1002,7 @@ static struct sctp_af sctp_af_inet6 = {
         .skb_iif           = sctp_v6_skb_iif,
         .is_ce             = sctp_v6_is_ce,
         .seq_dump_addr     = sctp_v6_seq_dump_addr,
+        .ecn_capable       = sctp_v6_ecn_capable,
         .net_header_len    = sizeof(struct ipv6hdr),
         .sockaddr_len      = sizeof(struct sockaddr_in6),
 #ifdef CONFIG_COMPAT
diff --git a/net/sctp/output.c b/net/sctp/output.c
index cf4f9fb6819d..6d45bae93b46 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -548,7 +548,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
          * Note: The works for IPv6 layer checks this bit too later
          * in transmission.  See IP6_ECN_flow_xmit().
          */
-        INET_ECN_xmit(nskb->sk);
+        (*tp->af_specific->ecn_capable)(nskb->sk);
 
         /* Set up the IP options.  */
         /* BUG: not implemented
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 59edfd25a19c..ace6770e9048 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -208,6 +208,7 @@ void sctp_outq_init(struct sctp_association *asoc, struct sctp_outq *q)
         INIT_LIST_HEAD(&q->sacked);
         INIT_LIST_HEAD(&q->abandoned);
 
+        q->fast_rtx = 0;
         q->outstanding_bytes = 0;
         q->empty = 1;
         q->cork  = 0;
@@ -500,6 +501,7 @@ void sctp_retransmit(struct sctp_outq *q, struct sctp_transport *transport,
         case SCTP_RTXR_FAST_RTX:
                 SCTP_INC_STATS(SCTP_MIB_FAST_RETRANSMITS);
                 sctp_transport_lower_cwnd(transport, SCTP_LOWER_CWND_FAST_RTX);
+                q->fast_rtx = 1;
                 break;
         case SCTP_RTXR_PMTUD:
                 SCTP_INC_STATS(SCTP_MIB_PMTUD_RETRANSMITS);
@@ -518,9 +520,15 @@ void sctp_retransmit(struct sctp_outq *q, struct sctp_transport *transport,
          * the sender SHOULD try to advance the "Advanced.Peer.Ack.Point" by
          * following the procedures outlined in C1 - C5.
          */
-        sctp_generate_fwdtsn(q, q->asoc->ctsn_ack_point);
+        if (reason == SCTP_RTXR_T3_RTX)
+                sctp_generate_fwdtsn(q, q->asoc->ctsn_ack_point);
 
-        error = sctp_outq_flush(q, /* rtx_timeout */ 1);
+        /* Flush the queues only on timeout, since fast_rtx is only
+         * triggered during sack processing and the queue
+         * will be flushed at the end.
+         */
+        if (reason != SCTP_RTXR_FAST_RTX)
+                error = sctp_outq_flush(q, /* rtx_timeout */ 1);
 
         if (error)
                 q->asoc->base.sk->sk_err = -error;
@@ -538,17 +546,23 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt,
                                int rtx_timeout, int *start_timer)
 {
         struct list_head *lqueue;
-        struct list_head *lchunk;
         struct sctp_transport *transport = pkt->transport;
         sctp_xmit_t status;
         struct sctp_chunk *chunk, *chunk1;
         struct sctp_association *asoc;
+        int fast_rtx;
         int error = 0;
+        int timer = 0;
+        int done = 0;
 
         asoc = q->asoc;
         lqueue = &q->retransmit;
+        fast_rtx = q->fast_rtx;
 
-        /* RFC 2960 6.3.3 Handle T3-rtx Expiration
+        /* This loop handles time-out retransmissions, fast retransmissions,
+         * and retransmissions due to opening of whindow.
+         *
+         * RFC 2960 6.3.3 Handle T3-rtx Expiration
          *
          * E3) Determine how many of the earliest (i.e., lowest TSN)
          * outstanding DATA chunks for the address for which the
@@ -563,12 +577,12 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt,
          * [Just to be painfully clear, if we are retransmitting
          * because a timeout just happened, we should send only ONE
          * packet of retransmitted data.]
+         *
+         * For fast retransmissions we also send only ONE packet.  However,
+         * if we are just flushing the queue due to open window, we'll
+         * try to send as much as possible.
          */
-        lchunk = sctp_list_dequeue(lqueue);
-
-        while (lchunk) {
-                chunk = list_entry(lchunk, struct sctp_chunk,
-                                   transmitted_list);
+        list_for_each_entry_safe(chunk, chunk1, lqueue, transmitted_list) {
 
                 /* Make sure that Gap Acked TSNs are not retransmitted.  A
                  * simple approach is just to move such TSNs out of the
@@ -576,58 +590,60 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt,
                  * next chunk.
                  */
                 if (chunk->tsn_gap_acked) {
-                        list_add_tail(lchunk, &transport->transmitted);
-                        lchunk = sctp_list_dequeue(lqueue);
+                        list_del(&chunk->transmitted_list);
+                        list_add_tail(&chunk->transmitted_list,
+                                        &transport->transmitted);
                         continue;
                 }
 
+                /* If we are doing fast retransmit, ignore non-fast_rtransmit
+                 * chunks
+                 */
+                if (fast_rtx && !chunk->fast_retransmit)
+                        continue;
+
                 /* Attempt to append this chunk to the packet. */
                 status = sctp_packet_append_chunk(pkt, chunk);
 
                 switch (status) {
                 case SCTP_XMIT_PMTU_FULL:
                         /* Send this packet.  */
-                        if ((error = sctp_packet_transmit(pkt)) == 0)
-                                *start_timer = 1;
+                        error = sctp_packet_transmit(pkt);
 
                         /* If we are retransmitting, we should only
                          * send a single packet.
                          */
-                        if (rtx_timeout) {
-                                list_add(lchunk, lqueue);
-                                lchunk = NULL;
-                        }
+                        if (rtx_timeout || fast_rtx)
+                                done = 1;
 
-                        /* Bundle lchunk in the next round.  */
+                        /* Bundle next chunk in the next round.  */
                         break;
 
                 case SCTP_XMIT_RWND_FULL:
                         /* Send this packet. */
-                        if ((error = sctp_packet_transmit(pkt)) == 0)
-                                *start_timer = 1;
+                        error = sctp_packet_transmit(pkt);
 
                         /* Stop sending DATA as there is no more room
                          * at the receiver.
                          */
-                        list_add(lchunk, lqueue);
-                        lchunk = NULL;
+                        done = 1;
                         break;
 
                 case SCTP_XMIT_NAGLE_DELAY:
                         /* Send this packet. */
-                        if ((error = sctp_packet_transmit(pkt)) == 0)
-                                *start_timer = 1;
+                        error = sctp_packet_transmit(pkt);
 
                         /* Stop sending DATA because of nagle delay. */
-                        list_add(lchunk, lqueue);
-                        lchunk = NULL;
+                        done = 1;
                         break;
 
                 default:
                         /* The append was successful, so add this chunk to
                          * the transmitted list.
                          */
-                        list_add_tail(lchunk, &transport->transmitted);
+                        list_del(&chunk->transmitted_list);
+                        list_add_tail(&chunk->transmitted_list,
+                                        &transport->transmitted);
 
                         /* Mark the chunk as ineligible for fast retransmit
                          * after it is retransmitted.
@@ -635,27 +651,44 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt,
                         if (chunk->fast_retransmit > 0)
                                 chunk->fast_retransmit = -1;
 
-                        *start_timer = 1;
-                        q->empty = 0;
+                        /* Force start T3-rtx timer when fast retransmitting
+                         * the earliest outstanding TSN
+                         */
+                        if (!timer && fast_rtx &&
+                            ntohl(chunk->subh.data_hdr->tsn) ==
+                                             asoc->ctsn_ack_point + 1)
+                                timer = 2;
 
-                        /* Retrieve a new chunk to bundle. */
-                        lchunk = sctp_list_dequeue(lqueue);
+                        q->empty = 0;
                         break;
                 }
 
-                /* If we are here due to a retransmit timeout or a fast
-                 * retransmit and if there are any chunks left in the retransmit
-                 * queue that could not fit in the PMTU sized packet, they need
-                 * to be marked as ineligible for a subsequent fast retransmit.
-                 */
-                if (rtx_timeout && !lchunk) {
-                        list_for_each_entry(chunk1, lqueue, transmitted_list) {
-                                if (chunk1->fast_retransmit > 0)
-                                        chunk1->fast_retransmit = -1;
-                        }
+                /* Set the timer if there were no errors */
+                if (!error && !timer)
+                        timer = 1;
+
+                if (done)
+                        break;
+        }
+
+        /* If we are here due to a retransmit timeout or a fast
+         * retransmit and if there are any chunks left in the retransmit
+         * queue that could not fit in the PMTU sized packet, they need
+         * to be marked as ineligible for a subsequent fast retransmit.
+         */
+        if (rtx_timeout || fast_rtx) {
+                list_for_each_entry(chunk1, lqueue, transmitted_list) {
+                        if (chunk1->fast_retransmit > 0)
+                                chunk1->fast_retransmit = -1;
                 }
         }
 
+        *start_timer = timer;
+
+        /* Clear fast retransmit hint */
+        if (fast_rtx)
+                q->fast_rtx = 0;
+
         return error;
 }
 
@@ -862,7 +895,8 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
                                                     rtx_timeout, &start_timer);
 
                         if (start_timer)
-                                sctp_transport_reset_timers(transport);
+                                sctp_transport_reset_timers(transport,
+                                                            start_timer-1);
 
                         /* This can happen on COOKIE-ECHO resend.  Only
                          * one chunk can get bundled with a COOKIE-ECHO.
@@ -977,7 +1011,7 @@ int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
                         list_add_tail(&chunk->transmitted_list,
                                       &transport->transmitted);
 
-                        sctp_transport_reset_timers(transport);
+                        sctp_transport_reset_timers(transport, start_timer-1);
 
                         q->empty = 0;
 
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 0ec234b762c2..9258dfe784ae 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -108,14 +108,23 @@ static __init int sctp_proc_init(void)
         }
 
         if (sctp_snmp_proc_init())
-                goto out_nomem;
+                goto out_snmp_proc_init;
         if (sctp_eps_proc_init())
-                goto out_nomem;
+                goto out_eps_proc_init;
         if (sctp_assocs_proc_init())
-                goto out_nomem;
+                goto out_assocs_proc_init;
 
         return 0;
 
+out_assocs_proc_init:
+        sctp_eps_proc_exit();
+out_eps_proc_init:
+        sctp_snmp_proc_exit();
+out_snmp_proc_init:
+        if (proc_net_sctp) {
+                proc_net_sctp = NULL;
+                remove_proc_entry("sctp", init_net.proc_net);
+        }
 out_nomem:
         return -ENOMEM;
 }
@@ -470,11 +479,11 @@ static struct dst_entry *sctp_v4_get_dst(struct sctp_association *asoc,
                 /* Walk through the bind address list and look for a bind
                  * address that matches the source address of the returned dst.
                  */
+                sctp_v4_dst_saddr(&dst_saddr, dst, htons(bp->port));
                 rcu_read_lock();
                 list_for_each_entry_rcu(laddr, &bp->address_list, list) {
                         if (!laddr->valid || (laddr->state != SCTP_ADDR_SRC))
                                 continue;
-                        sctp_v4_dst_saddr(&dst_saddr, dst, htons(bp->port));
                         if (sctp_v4_cmp_addr(&dst_saddr, &laddr->a))
                                 goto out_unlock;
                 }
@@ -519,7 +528,8 @@ out:
 /* For v4, the source address is cached in the route entry(dst). So no need
  * to cache it separately and hence this is an empty routine.
  */
-static void sctp_v4_get_saddr(struct sctp_association *asoc,
+static void sctp_v4_get_saddr(struct sctp_sock *sk,
+                              struct sctp_association *asoc,
                               struct dst_entry *dst,
                               union sctp_addr *daddr,
                               union sctp_addr *saddr)
@@ -616,6 +626,11 @@ static void sctp_v4_seq_dump_addr(struct seq_file *seq, union sctp_addr *addr)
         seq_printf(seq, "%d.%d.%d.%d ", NIPQUAD(addr->v4.sin_addr));
 }
 
+static void sctp_v4_ecn_capable(struct sock *sk)
+{
+        INET_ECN_xmit(sk);
+}
+
 /* Event handler for inet address addition/deletion events.
  * The sctp_local_addr_list needs to be protocted by a spin lock since
  * multiple notifiers (say IPv4 and IPv6) may be running at the same
@@ -934,6 +949,7 @@ static struct sctp_af sctp_af_inet = {
         .skb_iif           = sctp_v4_skb_iif,
         .is_ce             = sctp_v4_is_ce,
         .seq_dump_addr     = sctp_v4_seq_dump_addr,
+        .ecn_capable       = sctp_v4_ecn_capable,
         .net_header_len    = sizeof(struct iphdr),
         .sockaddr_len      = sizeof(struct sockaddr_in),
 #ifdef CONFIG_COMPAT
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 81b606424e12..bbc7107c86cf 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2418,7 +2418,8 @@ static int sctp_process_param(struct sctp_association *asoc,
                                 break;
 
                         case SCTP_PARAM_IPV6_ADDRESS:
-                                asoc->peer.ipv6_address = 1;
+                                if (PF_INET6 == asoc->base.sk->sk_family)
+                                        asoc->peer.ipv6_address = 1;
                                 break;
 
                         case SCTP_PARAM_HOST_NAME_ADDRESS:
@@ -2829,6 +2830,19 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
         addr_param = (union sctp_addr_param *)
                         ((void *)asconf_param + sizeof(sctp_addip_param_t));
 
+        switch (addr_param->v4.param_hdr.type) {
+        case SCTP_PARAM_IPV6_ADDRESS:
+                if (!asoc->peer.ipv6_address)
+                        return SCTP_ERROR_INV_PARAM;
+                break;
+        case SCTP_PARAM_IPV4_ADDRESS:
+                if (!asoc->peer.ipv4_address)
+                        return SCTP_ERROR_INV_PARAM;
+                break;
+        default:
+                return SCTP_ERROR_INV_PARAM;
+        }
+
         af = sctp_get_af_specific(param_type2af(addr_param->v4.param_hdr.type));
         if (unlikely(!af))
                 return SCTP_ERROR_INV_PARAM;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e7e3baf7009e..0dbcde6758ea 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4401,7 +4401,9 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len,
         if (copy_from_user(&getaddrs, optval, len))
                 return -EFAULT;
 
-        if (getaddrs.addr_num <= 0) return -EINVAL;
+        if (getaddrs.addr_num <= 0 ||
+            getaddrs.addr_num >= (INT_MAX / sizeof(union sctp_addr)))
+                return -EINVAL;
         /*
          *  For UDP-style sockets, id specifies the association to query.
          *  If the id field is set to the value '0' then the locally bound
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index f4938f6c5abe..3f34f61221ec 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -79,6 +79,7 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer,
         peer->rttvar = 0;
         peer->srtt = 0;
         peer->rto_pending = 0;
+        peer->fast_recovery = 0;
 
         peer->last_time_heard = jiffies;
         peer->last_time_used = jiffies;
@@ -190,7 +191,7 @@ static void sctp_transport_destroy(struct sctp_transport *transport)
 /* Start T3_rtx timer if it is not already running and update the heartbeat
  * timer.  This routine is called every time a DATA chunk is sent.
  */
-void sctp_transport_reset_timers(struct sctp_transport *transport)
+void sctp_transport_reset_timers(struct sctp_transport *transport, int force)
 {
         /* RFC 2960 6.3.2 Retransmission Timer Rules
          *
@@ -200,7 +201,7 @@ void sctp_transport_reset_timers(struct sctp_transport *transport)
          * address.
          */
 
-        if (!timer_pending(&transport->T3_rtx_timer))
+        if (force || !timer_pending(&transport->T3_rtx_timer))
                 if (!mod_timer(&transport->T3_rtx_timer,
                                jiffies + transport->rto))
                         sctp_transport_hold(transport);
@@ -291,7 +292,7 @@ void sctp_transport_route(struct sctp_transport *transport,
         if (saddr)
                 memcpy(&transport->saddr, saddr, sizeof(union sctp_addr));
         else
-                af->get_saddr(asoc, dst, daddr, &transport->saddr);
+                af->get_saddr(opt, asoc, dst, daddr, &transport->saddr);
 
         transport->dst = dst;
         if ((transport->param_flags & SPP_PMTUD_DISABLE) && transport->pathmtu) {
@@ -403,11 +404,16 @@ void sctp_transport_raise_cwnd(struct sctp_transport *transport,
         cwnd = transport->cwnd;
         flight_size = transport->flight_size;
 
+        /* See if we need to exit Fast Recovery first */
+        if (transport->fast_recovery &&
+            TSN_lte(transport->fast_recovery_exit, sack_ctsn))
+                transport->fast_recovery = 0;
+
         /* The appropriate cwnd increase algorithm is performed if, and only
-         * if the cumulative TSN has advanced and the congestion window is
+         * if the cumulative TSN whould advanced and the congestion window is
          * being fully utilized.
          */
-        if ((transport->asoc->ctsn_ack_point >= sack_ctsn) ||
+        if (TSN_lte(sack_ctsn, transport->asoc->ctsn_ack_point) ||
             (flight_size < cwnd))
                 return;
 
@@ -416,17 +422,23 @@ void sctp_transport_raise_cwnd(struct sctp_transport *transport,
         pmtu = transport->asoc->pathmtu;
 
         if (cwnd <= ssthresh) {
-                /* RFC 2960 7.2.1, sctpimpguide-05 2.14.2 When cwnd is less
-                 * than or equal to ssthresh an SCTP endpoint MUST use the
-                 * slow start algorithm to increase cwnd only if the current
-                 * congestion window is being fully utilized and an incoming
-                 * SACK advances the Cumulative TSN Ack Point. Only when these
-                 * two conditions are met can the cwnd be increased otherwise
-                 * the cwnd MUST not be increased. If these conditions are met
-                 * then cwnd MUST be increased by at most the lesser of
-                 * 1) the total size of the previously outstanding DATA
-                 * chunk(s) acknowledged, and 2) the destination's path MTU.
+                /* RFC 4960 7.2.1
+                 * o  When cwnd is less than or equal to ssthresh, an SCTP
+                 *    endpoint MUST use the slow-start algorithm to increase
+                 *    cwnd only if the current congestion window is being fully
+                 *    utilized, an incoming SACK advances the Cumulative TSN
+                 *    Ack Point, and the data sender is not in Fast Recovery.
+                 *    Only when these three conditions are met can the cwnd be
+                 *    increased; otherwise, the cwnd MUST not be increased.
+                 *    If these conditions are met, then cwnd MUST be increased
+                 *    by, at most, the lesser of 1) the total size of the
+                 *    previously outstanding DATA chunk(s) acknowledged, and
+                 *    2) the destination's path MTU.  This upper bound protects
+                 *    against the ACK-Splitting attack outlined in [SAVAGE99].
                  */
+                if (transport->fast_recovery)
+                        return;
+
                 if (bytes_acked > pmtu)
                         cwnd += pmtu;
                 else
@@ -502,6 +514,13 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport,
                  *      cwnd = ssthresh
                  *      partial_bytes_acked = 0
                  */
+                if (transport->fast_recovery)
+                        return;
+
+                /* Mark Fast recovery */
+                transport->fast_recovery = 1;
+                transport->fast_recovery_exit = transport->asoc->next_tsn - 1;
+
                 transport->ssthresh = max(transport->cwnd/2,
                                           4*transport->asoc->pathmtu);
                 transport->cwnd = transport->ssthresh;
@@ -586,6 +605,7 @@ void sctp_transport_reset(struct sctp_transport *t)
         t->flight_size = 0;
         t->error_count = 0;
         t->rto_pending = 0;
+        t->fast_recovery = 0;
 
         /* Initialize the state information for SFR-CACC */
         t->cacc.changeover_active = 0;
diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
index d927d9f57412..744b79fdcb19 100644
--- a/net/sunrpc/auth_generic.c
+++ b/net/sunrpc/auth_generic.c
@@ -17,8 +17,8 @@
 # define RPCDBG_FACILITY        RPCDBG_AUTH
 #endif
 
-#define RPC_ANONYMOUS_USERID    ((uid_t)-2)
-#define RPC_ANONYMOUS_GROUPID   ((gid_t)-2)
+#define RPC_MACHINE_CRED_USERID         ((uid_t)0)
+#define RPC_MACHINE_CRED_GROUPID        ((gid_t)0)
 
 struct generic_cred {
         struct rpc_cred gc_base;
@@ -44,8 +44,8 @@ EXPORT_SYMBOL_GPL(rpc_lookup_cred);
 struct rpc_cred *rpc_lookup_machine_cred(void)
 {
         struct auth_cred acred = {
-                .uid = RPC_ANONYMOUS_USERID,
-                .gid = RPC_ANONYMOUS_GROUPID,
+                .uid = RPC_MACHINE_CRED_USERID,
+                .gid = RPC_MACHINE_CRED_GROUPID,
                 .machine_cred = 1,
         };
 
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 5905d56737d6..81ae3d62a0cc 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -1144,20 +1144,20 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
                 case RPC_GSS_SVC_NONE:
                         break;
                 case RPC_GSS_SVC_INTEGRITY:
+                        /* placeholders for length and seq. number: */
+                        svc_putnl(resv, 0);
+                        svc_putnl(resv, 0);
                         if (unwrap_integ_data(&rqstp->rq_arg,
                                         gc->gc_seq, rsci->mechctx))
                                 goto garbage_args;
+                        break;
+                case RPC_GSS_SVC_PRIVACY:
                         /* placeholders for length and seq. number: */
                         svc_putnl(resv, 0);
                         svc_putnl(resv, 0);
-                        break;
-                case RPC_GSS_SVC_PRIVACY:
                         if (unwrap_priv_data(rqstp, &rqstp->rq_arg,
                                         gc->gc_seq, rsci->mechctx))
                                 goto garbage_args;
-                        /* placeholders for length and seq. number: */
-                        svc_putnl(resv, 0);
-                        svc_putnl(resv, 0);
                         break;
                 default:
                         goto auth_err;
@@ -1170,8 +1170,6 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
                 goto out;
         }
 garbage_args:
-        /* Restore write pointer to its original value: */
-        xdr_ressize_check(rqstp, reject_stat);
         ret = SVC_GARBAGE;
         goto out;
 auth_err:
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index d8e8d79a8451..e46c825f4954 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -6,30 +6,9 @@
 
 #include <linux/sched.h>
 #include <linux/errno.h>
-#include <linux/fcntl.h>
-#include <linux/net.h>
-#include <linux/in.h>
-#include <linux/inet.h>
-#include <linux/udp.h>
-#include <linux/tcp.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/file.h>
 #include <linux/freezer.h>
 #include <linux/kthread.h>
 #include <net/sock.h>
-#include <net/checksum.h>
-#include <net/ip.h>
-#include <net/ipv6.h>
-#include <net/tcp_states.h>
-#include <linux/uaccess.h>
-#include <asm/ioctls.h>
-
-#include <linux/sunrpc/types.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/sunrpc/xdr.h>
 #include <linux/sunrpc/stats.h>
 #include <linux/sunrpc/svc_xprt.h>
 
@@ -296,8 +275,6 @@ void svc_xprt_enqueue(struct svc_xprt *xprt)
         if (!(xprt->xpt_flags &
               ((1<<XPT_CONN)|(1<<XPT_DATA)|(1<<XPT_CLOSE)|(1<<XPT_DEFERRED))))
                 return;
-        if (test_bit(XPT_DEAD, &xprt->xpt_flags))
-                return;
 
         cpu = get_cpu();
         pool = svc_pool_for_cpu(xprt->xpt_server, cpu);
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 3f30ee6006ae..f24800f2c098 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -278,7 +278,7 @@ static int ip_map_show(struct seq_file *m,
                 dom = im->m_client->h.name;
 
         if (ipv6_addr_v4mapped(&addr)) {
-                seq_printf(m, "%s" NIPQUAD_FMT "%s\n",
+                seq_printf(m, "%s " NIPQUAD_FMT " %s\n",
                         im->m_class,
                         ntohl(addr.s6_addr32[3]) >> 24 & 0xff,
                         ntohl(addr.s6_addr32[3]) >> 16 & 0xff,
@@ -286,7 +286,7 @@ static int ip_map_show(struct seq_file *m,
                         ntohl(addr.s6_addr32[3]) >>  0 & 0xff,
                         dom);
         } else {
-                seq_printf(m, "%s" NIP6_FMT "%s\n",
+                seq_printf(m, "%s " NIP6_FMT " %s\n",
                         im->m_class, NIP6(addr), dom);
         }
         return 0;
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
index c22d6b6f2db4..06ab4841537b 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
@@ -260,11 +260,16 @@ static int rdma_read_max_sge(struct svcxprt_rdma *xprt, int sge_count)
  * On our side, we need to read into a pagelist. The first page immediately
  * follows the RPC header.
  *
- * This function returns 1 to indicate success. The data is not yet in
+ * This function returns:
+ * 0 - No error and no read-list found.
+ *
+ * 1 - Successful read-list processing. The data is not yet in
  * the pagelist and therefore the RPC request must be deferred. The
  * I/O completion will enqueue the transport again and
  * svc_rdma_recvfrom will complete the request.
  *
+ * <0 - Error processing/posting read-list.
+ *
  * NOTE: The ctxt must not be touched after the last WR has been posted
  * because the I/O completion processing may occur on another
  * processor and free / modify the context. Ne touche pas!
@@ -284,7 +289,6 @@ static int rdma_read_xdr(struct svcxprt_rdma *xprt,
         u64 sgl_offset;
         struct rpcrdma_read_chunk *ch;
         struct svc_rdma_op_ctxt *ctxt = NULL;
-        struct svc_rdma_op_ctxt *head;
         struct svc_rdma_op_ctxt *tmp_sge_ctxt;
         struct svc_rdma_op_ctxt *tmp_ch_ctxt;
         struct chunk_sge *ch_sge_ary;
@@ -302,25 +306,19 @@ static int rdma_read_xdr(struct svcxprt_rdma *xprt,
         ch_sge_ary = (struct chunk_sge *)tmp_ch_ctxt->sge;
 
         svc_rdma_rcl_chunk_counts(ch, &ch_count, &byte_count);
+        if (ch_count > RPCSVC_MAXPAGES)
+                return -EINVAL;
         sge_count = rdma_rcl_to_sge(xprt, rqstp, hdr_ctxt, rmsgp,
                                     sge, ch_sge_ary,
                                     ch_count, byte_count);
-        head = svc_rdma_get_context(xprt);
         sgl_offset = 0;
         ch_no = 0;
 
         for (ch = (struct rpcrdma_read_chunk *)&rmsgp->rm_body.rm_chunks[0];
              ch->rc_discrim != 0; ch++, ch_no++) {
 next_sge:
-                if (!ctxt)
-                        ctxt = head;
-                else {
-                        ctxt->next = svc_rdma_get_context(xprt);
-                        ctxt = ctxt->next;
-                }
-                ctxt->next = NULL;
+                ctxt = svc_rdma_get_context(xprt);
                 ctxt->direction = DMA_FROM_DEVICE;
-                clear_bit(RDMACTXT_F_READ_DONE, &ctxt->flags);
                 clear_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
 
                 /* Prepare READ WR */
@@ -347,20 +345,15 @@ next_sge:
                          * the client and the RPC needs to be enqueued.
                          */
                         set_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
-                        ctxt->next = hdr_ctxt;
-                        hdr_ctxt->next = head;
+                        ctxt->read_hdr = hdr_ctxt;
                 }
                 /* Post the read */
                 err = svc_rdma_send(xprt, &read_wr);
                 if (err) {
-                        printk(KERN_ERR "svcrdma: Error posting send = %d\n",
+                        printk(KERN_ERR "svcrdma: Error %d posting RDMA_READ\n",
                                err);
-                        /*
-                         * Break the circular list so free knows when
-                         * to stop if the error happened to occur on
-                         * the last read
-                         */
-                        ctxt->next = NULL;
+                        set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
+                        svc_rdma_put_context(ctxt, 0);
                         goto out;
                 }
                 atomic_inc(&rdma_stat_read);
@@ -371,7 +364,7 @@ next_sge:
                         goto next_sge;
                 }
                 sgl_offset = 0;
-                err = 0;
+                err = 1;
         }
 
  out:
@@ -389,25 +382,12 @@ next_sge:
         while (rqstp->rq_resused)
                 rqstp->rq_respages[--rqstp->rq_resused] = NULL;
 
-        if (err) {
-                printk(KERN_ERR "svcrdma : RDMA_READ error = %d\n", err);
-                set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
-                /* Free the linked list of read contexts */
-                while (head != NULL) {
-                        ctxt = head->next;
-                        svc_rdma_put_context(head, 1);
-                        head = ctxt;
-                }
-                return 0;
-        }
-
-        return 1;
+        return err;
 }
 
 static int rdma_read_complete(struct svc_rqst *rqstp,
-                              struct svc_rdma_op_ctxt *data)
+                              struct svc_rdma_op_ctxt *head)
 {
-        struct svc_rdma_op_ctxt *head = data->next;
         int page_no;
         int ret;
 
@@ -433,21 +413,12 @@ static int rdma_read_complete(struct svc_rqst *rqstp,
         rqstp->rq_arg.len = head->arg.len;
         rqstp->rq_arg.buflen = head->arg.buflen;
 
+        /* Free the context */
+        svc_rdma_put_context(head, 0);
+
         /* XXX: What should this be? */
         rqstp->rq_prot = IPPROTO_MAX;
-
-        /*
-         * Free the contexts we used to build the RDMA_READ. We have
-         * to be careful here because the context list uses the same
-         * next pointer used to chain the contexts associated with the
-         * RDMA_READ
-         */
-        data->next = NULL;      /* terminate circular list */
-        do {
-                data = head->next;
-                svc_rdma_put_context(head, 0);
-                head = data;
-        } while (head != NULL);
+        svc_xprt_copy_addrs(rqstp, rqstp->rq_xprt);
 
         ret = rqstp->rq_arg.head[0].iov_len
                 + rqstp->rq_arg.page_len
@@ -457,8 +428,6 @@ static int rdma_read_complete(struct svc_rqst *rqstp,
                 ret, rqstp->rq_arg.len, rqstp->rq_arg.head[0].iov_base,
                 rqstp->rq_arg.head[0].iov_len);
 
-        /* Indicate that we've consumed an RQ credit */
-        rqstp->rq_xprt_ctxt = rqstp->rq_xprt;
         svc_xprt_received(rqstp->rq_xprt);
         return ret;
 }
@@ -480,13 +449,6 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
 
         dprintk("svcrdma: rqstp=%p\n", rqstp);
 
-        /*
-         * The rq_xprt_ctxt indicates if we've consumed an RQ credit
-         * or not. It is used in the rdma xpo_release_rqst function to
-         * determine whether or not to return an RQ WQE to the RQ.
-         */
-        rqstp->rq_xprt_ctxt = NULL;
-
         spin_lock_bh(&rdma_xprt->sc_read_complete_lock);
         if (!list_empty(&rdma_xprt->sc_read_complete_q)) {
                 ctxt = list_entry(rdma_xprt->sc_read_complete_q.next,
@@ -537,21 +499,22 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
         /* If the request is invalid, reply with an error */
         if (len < 0) {
                 if (len == -ENOSYS)
-                        (void)svc_rdma_send_error(rdma_xprt, rmsgp, ERR_VERS);
+                        svc_rdma_send_error(rdma_xprt, rmsgp, ERR_VERS);
                 goto close_out;
         }
 
-        /* Read read-list data. If we would need to wait, defer
-         * it. Not that in this case, we don't return the RQ credit
-         * until after the read completes.
-         */
-        if (rdma_read_xdr(rdma_xprt, rmsgp, rqstp, ctxt)) {
+        /* Read read-list data. */
+        ret = rdma_read_xdr(rdma_xprt, rmsgp, rqstp, ctxt);
+        if (ret > 0) {
+                /* read-list posted, defer until data received from client. */
                 svc_xprt_received(xprt);
                 return 0;
         }
-
-        /* Indicate we've consumed an RQ credit */
-        rqstp->rq_xprt_ctxt = rqstp->rq_xprt;
+        if (ret < 0) {
+                /* Post of read-list failed, free context. */
+                svc_rdma_put_context(ctxt, 1);
+                return 0;
+        }
 
         ret = rqstp->rq_arg.head[0].iov_len
                 + rqstp->rq_arg.page_len
@@ -569,11 +532,8 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
         return ret;
 
  close_out:
-        if (ctxt) {
+        if (ctxt)
                 svc_rdma_put_context(ctxt, 1);
-                /* Indicate we've consumed an RQ credit */
-                rqstp->rq_xprt_ctxt = rqstp->rq_xprt;
-        }
         dprintk("svcrdma: transport %p is closing\n", xprt);
         /*
          * Set the close bit and enqueue it. svc_recv will see the
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index 981f190c1b39..fb82b1b683f8 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -389,6 +389,17 @@ static int send_reply(struct svcxprt_rdma *rdma,
         int page_no;
         int ret;
 
+        /* Post a recv buffer to handle another request. */
+        ret = svc_rdma_post_recv(rdma);
+        if (ret) {
+                printk(KERN_INFO
+                       "svcrdma: could not post a receive buffer, err=%d."
+                       "Closing transport %p.\n", ret, rdma);
+                set_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags);
+                svc_rdma_put_context(ctxt, 0);
+                return -ENOTCONN;
+        }
+
         /* Prepare the context */
         ctxt->pages[0] = page;
         ctxt->count = 1;
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index af408fc12634..e132509d1db0 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -103,8 +103,8 @@ static int rdma_bump_context_cache(struct svcxprt_rdma *xprt)
                 spin_lock_bh(&xprt->sc_ctxt_lock);
                 if (ctxt) {
                         at_least_one = 1;
-                        ctxt->next = xprt->sc_ctxt_head;
-                        xprt->sc_ctxt_head = ctxt;
+                        INIT_LIST_HEAD(&ctxt->free_list);
+                        list_add(&ctxt->free_list, &xprt->sc_ctxt_free);
                 } else {
                         /* kmalloc failed...give up for now */
                         xprt->sc_ctxt_cnt--;
@@ -123,7 +123,7 @@ struct svc_rdma_op_ctxt *svc_rdma_get_context(struct svcxprt_rdma *xprt)
 
         while (1) {
                 spin_lock_bh(&xprt->sc_ctxt_lock);
-                if (unlikely(xprt->sc_ctxt_head == NULL)) {
+                if (unlikely(list_empty(&xprt->sc_ctxt_free))) {
                         /* Try to bump my cache. */
                         spin_unlock_bh(&xprt->sc_ctxt_lock);
 
@@ -136,12 +136,15 @@ struct svc_rdma_op_ctxt *svc_rdma_get_context(struct svcxprt_rdma *xprt)
                         schedule_timeout_uninterruptible(msecs_to_jiffies(500));
                         continue;
                 }
-                ctxt = xprt->sc_ctxt_head;
-                xprt->sc_ctxt_head = ctxt->next;
+                ctxt = list_entry(xprt->sc_ctxt_free.next,
+                                  struct svc_rdma_op_ctxt,
+                                  free_list);
+                list_del_init(&ctxt->free_list);
                 spin_unlock_bh(&xprt->sc_ctxt_lock);
                 ctxt->xprt = xprt;
                 INIT_LIST_HEAD(&ctxt->dto_q);
                 ctxt->count = 0;
+                atomic_inc(&xprt->sc_ctxt_used);
                 break;
         }
         return ctxt;
@@ -159,14 +162,15 @@ void svc_rdma_put_context(struct svc_rdma_op_ctxt *ctxt, int free_pages)
                         put_page(ctxt->pages[i]);
 
         for (i = 0; i < ctxt->count; i++)
-                dma_unmap_single(xprt->sc_cm_id->device->dma_device,
-                                 ctxt->sge[i].addr,
-                                 ctxt->sge[i].length,
-                                 ctxt->direction);
+                ib_dma_unmap_single(xprt->sc_cm_id->device,
+                                    ctxt->sge[i].addr,
+                                    ctxt->sge[i].length,
+                                    ctxt->direction);
+
         spin_lock_bh(&xprt->sc_ctxt_lock);
-        ctxt->next = xprt->sc_ctxt_head;
-        xprt->sc_ctxt_head = ctxt;
+        list_add(&ctxt->free_list, &xprt->sc_ctxt_free);
         spin_unlock_bh(&xprt->sc_ctxt_lock);
+        atomic_dec(&xprt->sc_ctxt_used);
 }
 
 /* ib_cq event handler */
@@ -228,23 +232,8 @@ static void dto_tasklet_func(unsigned long data)
                 list_del_init(&xprt->sc_dto_q);
                 spin_unlock_irqrestore(&dto_lock, flags);
 
-                if (test_and_clear_bit(RDMAXPRT_RQ_PENDING, &xprt->sc_flags)) {
-                        ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP);
-                        rq_cq_reap(xprt);
-                        set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
-                        /*
-                         * If data arrived before established event,
-                         * don't enqueue. This defers RPC I/O until the
-                         * RDMA connection is complete.
-                         */
-                        if (!test_bit(RDMAXPRT_CONN_PENDING, &xprt->sc_flags))
-                                svc_xprt_enqueue(&xprt->sc_xprt);
-                }
-
-                if (test_and_clear_bit(RDMAXPRT_SQ_PENDING, &xprt->sc_flags)) {
-                        ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP);
-                        sq_cq_reap(xprt);
-                }
+                rq_cq_reap(xprt);
+                sq_cq_reap(xprt);
 
                 svc_xprt_put(&xprt->sc_xprt);
                 spin_lock_irqsave(&dto_lock, flags);
@@ -263,11 +252,15 @@ static void rq_comp_handler(struct ib_cq *cq, void *cq_context)
         struct svcxprt_rdma *xprt = cq_context;
         unsigned long flags;
 
+        /* Guard against unconditional flush call for destroyed QP */
+        if (atomic_read(&xprt->sc_xprt.xpt_ref.refcount)==0)
+                return;
+
         /*
          * Set the bit regardless of whether or not it's on the list
          * because it may be on the list already due to an SQ
          * completion.
-        */
+         */
         set_bit(RDMAXPRT_RQ_PENDING, &xprt->sc_flags);
 
         /*
@@ -290,6 +283,8 @@ static void rq_comp_handler(struct ib_cq *cq, void *cq_context)
  *
  * Take all completing WC off the CQE and enqueue the associated DTO
  * context on the dto_q for the transport.
+ *
+ * Note that caller must hold a transport reference.
  */
 static void rq_cq_reap(struct svcxprt_rdma *xprt)
 {
@@ -297,29 +292,47 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
         struct ib_wc wc;
         struct svc_rdma_op_ctxt *ctxt = NULL;
 
+        if (!test_and_clear_bit(RDMAXPRT_RQ_PENDING, &xprt->sc_flags))
+                return;
+
+        ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP);
         atomic_inc(&rdma_stat_rq_poll);
 
-        spin_lock_bh(&xprt->sc_rq_dto_lock);
         while ((ret = ib_poll_cq(xprt->sc_rq_cq, 1, &wc)) > 0) {
                 ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id;
                 ctxt->wc_status = wc.status;
                 ctxt->byte_len = wc.byte_len;
                 if (wc.status != IB_WC_SUCCESS) {
                         /* Close the transport */
+                        dprintk("svcrdma: transport closing putting ctxt %p\n", ctxt);
                         set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
                         svc_rdma_put_context(ctxt, 1);
+                        svc_xprt_put(&xprt->sc_xprt);
                         continue;
                 }
+                spin_lock_bh(&xprt->sc_rq_dto_lock);
                 list_add_tail(&ctxt->dto_q, &xprt->sc_rq_dto_q);
+                spin_unlock_bh(&xprt->sc_rq_dto_lock);
+                svc_xprt_put(&xprt->sc_xprt);
         }
-        spin_unlock_bh(&xprt->sc_rq_dto_lock);
 
         if (ctxt)
                 atomic_inc(&rdma_stat_rq_prod);
+
+        set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
+        /*
+         * If data arrived before established event,
+         * don't enqueue. This defers RPC I/O until the
+         * RDMA connection is complete.
+         */
+        if (!test_bit(RDMAXPRT_CONN_PENDING, &xprt->sc_flags))
+                svc_xprt_enqueue(&xprt->sc_xprt);
 }
 
 /*
  * Send Queue Completion Handler - potentially called on interrupt context.
+ *
+ * Note that caller must hold a transport reference.
  */
 static void sq_cq_reap(struct svcxprt_rdma *xprt)
 {
@@ -328,6 +341,11 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
         struct ib_cq *cq = xprt->sc_sq_cq;
         int ret;
 
+
+        if (!test_and_clear_bit(RDMAXPRT_SQ_PENDING, &xprt->sc_flags))
+                return;
+
+        ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP);
         atomic_inc(&rdma_stat_sq_poll);
         while ((ret = ib_poll_cq(cq, 1, &wc)) > 0) {
                 ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id;
@@ -349,14 +367,16 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
 
                 case IB_WR_RDMA_READ:
                         if (test_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags)) {
+                                struct svc_rdma_op_ctxt *read_hdr = ctxt->read_hdr;
+                                BUG_ON(!read_hdr);
                                 set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
-                                set_bit(RDMACTXT_F_READ_DONE, &ctxt->flags);
                                 spin_lock_bh(&xprt->sc_read_complete_lock);
-                                list_add_tail(&ctxt->dto_q,
+                                list_add_tail(&read_hdr->dto_q,
                                               &xprt->sc_read_complete_q);
                                 spin_unlock_bh(&xprt->sc_read_complete_lock);
                                 svc_xprt_enqueue(&xprt->sc_xprt);
                         }
+                        svc_rdma_put_context(ctxt, 0);
                         break;
 
                 default:
@@ -365,6 +385,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
                                wc.opcode, wc.status);
                         break;
                 }
+                svc_xprt_put(&xprt->sc_xprt);
         }
 
         if (ctxt)
@@ -376,11 +397,15 @@ static void sq_comp_handler(struct ib_cq *cq, void *cq_context)
         struct svcxprt_rdma *xprt = cq_context;
         unsigned long flags;
 
+        /* Guard against unconditional flush call for destroyed QP */
+        if (atomic_read(&xprt->sc_xprt.xpt_ref.refcount)==0)
+                return;
+
         /*
          * Set the bit regardless of whether or not it's on the list
          * because it may be on the list already due to an RQ
          * completion.
-        */
+         */
         set_bit(RDMAXPRT_SQ_PENDING, &xprt->sc_flags);
 
         /*
@@ -407,28 +432,29 @@ static void create_context_cache(struct svcxprt_rdma *xprt,
         xprt->sc_ctxt_max = ctxt_max;
         xprt->sc_ctxt_bump = ctxt_bump;
         xprt->sc_ctxt_cnt = 0;
-        xprt->sc_ctxt_head = NULL;
+        atomic_set(&xprt->sc_ctxt_used, 0);
+
+        INIT_LIST_HEAD(&xprt->sc_ctxt_free);
         for (i = 0; i < ctxt_count; i++) {
                 ctxt = kmalloc(sizeof(*ctxt), GFP_KERNEL);
                 if (ctxt) {
-                        ctxt->next = xprt->sc_ctxt_head;
-                        xprt->sc_ctxt_head = ctxt;
+                        INIT_LIST_HEAD(&ctxt->free_list);
+                        list_add(&ctxt->free_list, &xprt->sc_ctxt_free);
                         xprt->sc_ctxt_cnt++;
                 }
         }
 }
 
-static void destroy_context_cache(struct svc_rdma_op_ctxt *ctxt)
+static void destroy_context_cache(struct svcxprt_rdma *xprt)
 {
-        struct svc_rdma_op_ctxt *next;
-        if (!ctxt)
-                return;
-
-        do {
-                next = ctxt->next;
+        while (!list_empty(&xprt->sc_ctxt_free)) {
+                struct svc_rdma_op_ctxt *ctxt;
+                ctxt = list_entry(xprt->sc_ctxt_free.next,
+                                  struct svc_rdma_op_ctxt,
+                                  free_list);
+                list_del_init(&ctxt->free_list);
                 kfree(ctxt);
-                ctxt = next;
-        } while (next);
+        }
 }
 
 static struct svcxprt_rdma *rdma_create_xprt(struct svc_serv *serv,
@@ -465,7 +491,7 @@ static struct svcxprt_rdma *rdma_create_xprt(struct svc_serv *serv,
                                      reqs +
                                      cma_xprt->sc_sq_depth +
                                      RPCRDMA_MAX_THREADS + 1); /* max */
-                if (!cma_xprt->sc_ctxt_head) {
+                if (list_empty(&cma_xprt->sc_ctxt_free)) {
                         kfree(cma_xprt);
                         return NULL;
                 }
@@ -520,7 +546,12 @@ int svc_rdma_post_recv(struct svcxprt_rdma *xprt)
         recv_wr.num_sge = ctxt->count;
         recv_wr.wr_id = (u64)(unsigned long)ctxt;
 
+        svc_xprt_get(&xprt->sc_xprt);
         ret = ib_post_recv(xprt->sc_qp, &recv_wr, &bad_recv_wr);
+        if (ret) {
+                svc_xprt_put(&xprt->sc_xprt);
+                svc_rdma_put_context(ctxt, 1);
+        }
         return ret;
 }
 
@@ -539,6 +570,7 @@ static void handle_connect_req(struct rdma_cm_id *new_cma_id)
 {
         struct svcxprt_rdma *listen_xprt = new_cma_id->context;
         struct svcxprt_rdma *newxprt;
+        struct sockaddr *sa;
 
         /* Create a new transport */
         newxprt = rdma_create_xprt(listen_xprt->sc_xprt.xpt_server, 0);
@@ -551,6 +583,12 @@ static void handle_connect_req(struct rdma_cm_id *new_cma_id)
         dprintk("svcrdma: Creating newxprt=%p, cm_id=%p, listenxprt=%p\n",
                 newxprt, newxprt->sc_cm_id, listen_xprt);
 
+        /* Set the local and remote addresses in the transport */
+        sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.dst_addr;
+        svc_xprt_set_remote(&newxprt->sc_xprt, sa, svc_addr_len(sa));
+        sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.src_addr;
+        svc_xprt_set_local(&newxprt->sc_xprt, sa, svc_addr_len(sa));
+
         /*
          * Enqueue the new transport on the accept queue of the listening
          * transport
@@ -627,6 +665,7 @@ static int rdma_cma_handler(struct rdma_cm_id *cma_id,
                 if (xprt) {
                         set_bit(XPT_CLOSE, &xprt->xpt_flags);
                         svc_xprt_enqueue(xprt);
+                        svc_xprt_put(xprt);
                 }
                 break;
         case RDMA_CM_EVENT_DEVICE_REMOVAL:
@@ -661,31 +700,27 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
 
         cma_xprt = rdma_create_xprt(serv, 1);
         if (!cma_xprt)
-                return ERR_PTR(ENOMEM);
+                return ERR_PTR(-ENOMEM);
         xprt = &cma_xprt->sc_xprt;
 
         listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP);
         if (IS_ERR(listen_id)) {
-                svc_xprt_put(&cma_xprt->sc_xprt);
-                dprintk("svcrdma: rdma_create_id failed = %ld\n",
-                        PTR_ERR(listen_id));
-                return (void *)listen_id;
+                ret = PTR_ERR(listen_id);
+                dprintk("svcrdma: rdma_create_id failed = %d\n", ret);
+                goto err0;
         }
+
         ret = rdma_bind_addr(listen_id, sa);
         if (ret) {
-                rdma_destroy_id(listen_id);
-                svc_xprt_put(&cma_xprt->sc_xprt);
                 dprintk("svcrdma: rdma_bind_addr failed = %d\n", ret);
-                return ERR_PTR(ret);
+                goto err1;
         }
         cma_xprt->sc_cm_id = listen_id;
 
         ret = rdma_listen(listen_id, RPCRDMA_LISTEN_BACKLOG);
         if (ret) {
-                rdma_destroy_id(listen_id);
-                svc_xprt_put(&cma_xprt->sc_xprt);
                 dprintk("svcrdma: rdma_listen failed = %d\n", ret);
-                return ERR_PTR(ret);
+                goto err1;
         }
 
         /*
@@ -696,6 +731,12 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
         svc_xprt_set_local(&cma_xprt->sc_xprt, sa, salen);
 
         return &cma_xprt->sc_xprt;
+
+ err1:
+        rdma_destroy_id(listen_id);
+ err0:
+        kfree(cma_xprt);
+        return ERR_PTR(ret);
 }
 
 /*
@@ -716,7 +757,6 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
         struct rdma_conn_param conn_param;
         struct ib_qp_init_attr qp_attr;
         struct ib_device_attr devattr;
-        struct sockaddr *sa;
         int ret;
         int i;
 
@@ -826,7 +866,6 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
                 newxprt->sc_sq_depth = qp_attr.cap.max_send_wr;
                 newxprt->sc_max_requests = qp_attr.cap.max_recv_wr;
         }
-        svc_xprt_get(&newxprt->sc_xprt);
         newxprt->sc_qp = newxprt->sc_cm_id->qp;
 
         /* Register all of physical memory */
@@ -850,6 +889,13 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
         /* Swap out the handler */
         newxprt->sc_cm_id->event_handler = rdma_cma_handler;
 
+        /*
+         * Arm the CQs for the SQ and RQ before accepting so we can't
+         * miss the first message
+         */
+        ib_req_notify_cq(newxprt->sc_sq_cq, IB_CQ_NEXT_COMP);
+        ib_req_notify_cq(newxprt->sc_rq_cq, IB_CQ_NEXT_COMP);
+
         /* Accept Connection */
         set_bit(RDMAXPRT_CONN_PENDING, &newxprt->sc_flags);
         memset(&conn_param, 0, sizeof conn_param);
@@ -886,58 +932,26 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
                 newxprt->sc_max_requests,
                 newxprt->sc_ord);
 
-        /* Set the local and remote addresses in the transport */
-        sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.dst_addr;
-        svc_xprt_set_remote(&newxprt->sc_xprt, sa, svc_addr_len(sa));
-        sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.src_addr;
-        svc_xprt_set_local(&newxprt->sc_xprt, sa, svc_addr_len(sa));
-
-        ib_req_notify_cq(newxprt->sc_sq_cq, IB_CQ_NEXT_COMP);
-        ib_req_notify_cq(newxprt->sc_rq_cq, IB_CQ_NEXT_COMP);
         return &newxprt->sc_xprt;
 
  errout:
         dprintk("svcrdma: failure accepting new connection rc=%d.\n", ret);
         /* Take a reference in case the DTO handler runs */
         svc_xprt_get(&newxprt->sc_xprt);
-        if (newxprt->sc_qp && !IS_ERR(newxprt->sc_qp)) {
+        if (newxprt->sc_qp && !IS_ERR(newxprt->sc_qp))
                 ib_destroy_qp(newxprt->sc_qp);
-                svc_xprt_put(&newxprt->sc_xprt);
-        }
         rdma_destroy_id(newxprt->sc_cm_id);
         /* This call to put will destroy the transport */
         svc_xprt_put(&newxprt->sc_xprt);
         return NULL;
 }
 
-/*
- * Post an RQ WQE to the RQ when the rqst is being released. This
- * effectively returns an RQ credit to the client. The rq_xprt_ctxt
- * will be null if the request is deferred due to an RDMA_READ or the
- * transport had no data ready (EAGAIN). Note that an RPC deferred in
- * svc_process will still return the credit, this is because the data
- * is copied and no longer consume a WQE/WC.
- */
 static void svc_rdma_release_rqst(struct svc_rqst *rqstp)
 {
-        int err;
-        struct svcxprt_rdma *rdma =
-                container_of(rqstp->rq_xprt, struct svcxprt_rdma, sc_xprt);
-        if (rqstp->rq_xprt_ctxt) {
-                BUG_ON(rqstp->rq_xprt_ctxt != rdma);
-                err = svc_rdma_post_recv(rdma);
-                if (err)
-                        dprintk("svcrdma: failed to post an RQ WQE error=%d\n",
-                                err);
-        }
-        rqstp->rq_xprt_ctxt = NULL;
 }
 
 /*
- * When connected, an svc_xprt has at least three references:
- *
- * - A reference held by the QP. We still hold that here because this
- *   code deletes the QP and puts the reference.
+ * When connected, an svc_xprt has at least two references:
  *
  * - A reference held by the cm_id between the ESTABLISHED and
  *   DISCONNECTED events. If the remote peer disconnected first, this
@@ -946,7 +960,7 @@ static void svc_rdma_release_rqst(struct svc_rqst *rqstp)
  * - A reference held by the svc_recv code that called this function
  *   as part of close processing.
  *
- * At a minimum two references should still be held.
+ * At a minimum one references should still be held.
  */
 static void svc_rdma_detach(struct svc_xprt *xprt)
 {
@@ -956,23 +970,53 @@ static void svc_rdma_detach(struct svc_xprt *xprt)
 
         /* Disconnect and flush posted WQE */
         rdma_disconnect(rdma->sc_cm_id);
-
-        /* Destroy the QP if present (not a listener) */
-        if (rdma->sc_qp && !IS_ERR(rdma->sc_qp)) {
-                ib_destroy_qp(rdma->sc_qp);
-                svc_xprt_put(xprt);
-        }
-
-        /* Destroy the CM ID */
-        rdma_destroy_id(rdma->sc_cm_id);
 }
 
-static void svc_rdma_free(struct svc_xprt *xprt)
+static void __svc_rdma_free(struct work_struct *work)
 {
-        struct svcxprt_rdma *rdma = (struct svcxprt_rdma *)xprt;
+        struct svcxprt_rdma *rdma =
+                container_of(work, struct svcxprt_rdma, sc_work);
         dprintk("svcrdma: svc_rdma_free(%p)\n", rdma);
+
         /* We should only be called from kref_put */
-        BUG_ON(atomic_read(&xprt->xpt_ref.refcount) != 0);
+        BUG_ON(atomic_read(&rdma->sc_xprt.xpt_ref.refcount) != 0);
+
+        /*
+         * Destroy queued, but not processed read completions. Note
+         * that this cleanup has to be done before destroying the
+         * cm_id because the device ptr is needed to unmap the dma in
+         * svc_rdma_put_context.
+         */
+        spin_lock_bh(&rdma->sc_read_complete_lock);
+        while (!list_empty(&rdma->sc_read_complete_q)) {
+                struct svc_rdma_op_ctxt *ctxt;
+                ctxt = list_entry(rdma->sc_read_complete_q.next,
+                                  struct svc_rdma_op_ctxt,
+                                  dto_q);
+                list_del_init(&ctxt->dto_q);
+                svc_rdma_put_context(ctxt, 1);
+        }
+        spin_unlock_bh(&rdma->sc_read_complete_lock);
+
+        /* Destroy queued, but not processed recv completions */
+        spin_lock_bh(&rdma->sc_rq_dto_lock);
+        while (!list_empty(&rdma->sc_rq_dto_q)) {
+                struct svc_rdma_op_ctxt *ctxt;
+                ctxt = list_entry(rdma->sc_rq_dto_q.next,
+                                  struct svc_rdma_op_ctxt,
+                                  dto_q);
+                list_del_init(&ctxt->dto_q);
+                svc_rdma_put_context(ctxt, 1);
+        }
+        spin_unlock_bh(&rdma->sc_rq_dto_lock);
+
+        /* Warn if we leaked a resource or under-referenced */
+        WARN_ON(atomic_read(&rdma->sc_ctxt_used) != 0);
+
+        /* Destroy the QP if present (not a listener) */
+        if (rdma->sc_qp && !IS_ERR(rdma->sc_qp))
+                ib_destroy_qp(rdma->sc_qp);
+
         if (rdma->sc_sq_cq && !IS_ERR(rdma->sc_sq_cq))
                 ib_destroy_cq(rdma->sc_sq_cq);
 
@@ -985,10 +1029,21 @@ static void svc_rdma_free(struct svc_xprt *xprt)
         if (rdma->sc_pd && !IS_ERR(rdma->sc_pd))
                 ib_dealloc_pd(rdma->sc_pd);
 
-        destroy_context_cache(rdma->sc_ctxt_head);
+        /* Destroy the CM ID */
+        rdma_destroy_id(rdma->sc_cm_id);
+
+        destroy_context_cache(rdma);
         kfree(rdma);
 }
 
+static void svc_rdma_free(struct svc_xprt *xprt)
+{
+        struct svcxprt_rdma *rdma =
+                container_of(xprt, struct svcxprt_rdma, sc_xprt);
+        INIT_WORK(&rdma->sc_work, __svc_rdma_free);
+        schedule_work(&rdma->sc_work);
+}
+
 static int svc_rdma_has_wspace(struct svc_xprt *xprt)
 {
         struct svcxprt_rdma *rdma =
@@ -1018,7 +1073,7 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
         int ret;
 
         if (test_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags))
-                return 0;
+                return -ENOTCONN;
 
         BUG_ON(wr->send_flags != IB_SEND_SIGNALED);
         BUG_ON(((struct svc_rdma_op_ctxt *)(unsigned long)wr->wr_id)->wr_op !=
@@ -1029,7 +1084,8 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
                 if (xprt->sc_sq_depth == atomic_read(&xprt->sc_sq_count)) {
                         spin_unlock_bh(&xprt->sc_lock);
                         atomic_inc(&rdma_stat_sq_starve);
-                        /* See if we can reap some SQ WR */
+
+                        /* See if we can opportunistically reap SQ WR to make room */
                         sq_cq_reap(xprt);
 
                         /* Wait until SQ WR available if SQ still full */
@@ -1041,22 +1097,25 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
                         continue;
                 }
                 /* Bumped used SQ WR count and post */
+                svc_xprt_get(&xprt->sc_xprt);
                 ret = ib_post_send(xprt->sc_qp, wr, &bad_wr);
                 if (!ret)
                         atomic_inc(&xprt->sc_sq_count);
-                else
+                else {
+                        svc_xprt_put(&xprt->sc_xprt);
                         dprintk("svcrdma: failed to post SQ WR rc=%d, "
                                "sc_sq_count=%d, sc_sq_depth=%d\n",
                                ret, atomic_read(&xprt->sc_sq_count),
                                xprt->sc_sq_depth);
+                }
                 spin_unlock_bh(&xprt->sc_lock);
                 break;
         }
         return ret;
 }
 
-int svc_rdma_send_error(struct svcxprt_rdma *xprt, struct rpcrdma_msg *rmsgp,
-                        enum rpcrdma_errcode err)
+void svc_rdma_send_error(struct svcxprt_rdma *xprt, struct rpcrdma_msg *rmsgp,
+                         enum rpcrdma_errcode err)
 {
         struct ib_send_wr err_wr;
         struct ib_sge sge;
@@ -1094,9 +1153,8 @@ int svc_rdma_send_error(struct svcxprt_rdma *xprt, struct rpcrdma_msg *rmsgp,
         /* Post It */
         ret = svc_rdma_send(xprt, &err_wr);
         if (ret) {
-                dprintk("svcrdma: Error posting send = %d\n", ret);
+                dprintk("svcrdma: Error %d posting send for protocol error\n",
+                        ret);
                 svc_rdma_put_context(ctxt, 1);
         }
-
-        return ret;
 }
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index e18cd3628db4..783317dacd30 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -169,6 +169,11 @@ static inline int unix_may_send(struct sock *sk, struct sock *osk)
         return (unix_peer(osk) == NULL || unix_our_peer(sk, osk));
 }
 
+static inline int unix_recvq_full(struct sock const *sk)
+{
+        return skb_queue_len(&sk->sk_receive_queue) > sk->sk_max_ack_backlog;
+}
+
 static struct sock *unix_peer_get(struct sock *s)
 {
         struct sock *peer;
@@ -482,6 +487,8 @@ static int unix_socketpair(struct socket *, struct socket *);
 static int unix_accept(struct socket *, struct socket *, int);
 static int unix_getname(struct socket *, struct sockaddr *, int *, int);
 static unsigned int unix_poll(struct file *, struct socket *, poll_table *);
+static unsigned int unix_dgram_poll(struct file *, struct socket *,
+                                    poll_table *);
 static int unix_ioctl(struct socket *, unsigned int, unsigned long);
 static int unix_shutdown(struct socket *, int);
 static int unix_stream_sendmsg(struct kiocb *, struct socket *,
@@ -527,7 +534,7 @@ static const struct proto_ops unix_dgram_ops = {
         .socketpair =   unix_socketpair,
         .accept =       sock_no_accept,
         .getname =      unix_getname,
-        .poll =         datagram_poll,
+        .poll =         unix_dgram_poll,
         .ioctl =        unix_ioctl,
         .listen =       sock_no_listen,
         .shutdown =     unix_shutdown,
@@ -548,7 +555,7 @@ static const struct proto_ops unix_seqpacket_ops = {
         .socketpair =   unix_socketpair,
         .accept =       unix_accept,
         .getname =      unix_getname,
-        .poll =         datagram_poll,
+        .poll =         unix_dgram_poll,
         .ioctl =        unix_ioctl,
         .listen =       unix_listen,
         .shutdown =     unix_shutdown,
@@ -983,8 +990,7 @@ static long unix_wait_for_peer(struct sock *other, long timeo)
 
         sched = !sock_flag(other, SOCK_DEAD) &&
                 !(other->sk_shutdown & RCV_SHUTDOWN) &&
-                (skb_queue_len(&other->sk_receive_queue) >
-                 other->sk_max_ack_backlog);
+                unix_recvq_full(other);
 
         unix_state_unlock(other);
 
@@ -1058,8 +1064,7 @@ restart:
         if (other->sk_state != TCP_LISTEN)
                 goto out_unlock;
 
-        if (skb_queue_len(&other->sk_receive_queue) >
-            other->sk_max_ack_backlog) {
+        if (unix_recvq_full(other)) {
                 err = -EAGAIN;
                 if (!timeo)
                         goto out_unlock;
@@ -1428,9 +1433,7 @@ restart:
                         goto out_unlock;
         }
 
-        if (unix_peer(other) != sk &&
-            (skb_queue_len(&other->sk_receive_queue) >
-             other->sk_max_ack_backlog)) {
+        if (unix_peer(other) != sk && unix_recvq_full(other)) {
                 if (!timeo) {
                         err = -EAGAIN;
                         goto out_unlock;
@@ -1991,6 +1994,60 @@ static unsigned int unix_poll(struct file * file, struct socket *sock, poll_tabl
         return mask;
 }
 
+static unsigned int unix_dgram_poll(struct file *file, struct socket *sock,
+                                    poll_table *wait)
+{
+        struct sock *sk = sock->sk, *other;
+        unsigned int mask, writable;
+
+        poll_wait(file, sk->sk_sleep, wait);
+        mask = 0;
+
+        /* exceptional events? */
+        if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
+                mask |= POLLERR;
+        if (sk->sk_shutdown & RCV_SHUTDOWN)
+                mask |= POLLRDHUP;
+        if (sk->sk_shutdown == SHUTDOWN_MASK)
+                mask |= POLLHUP;
+
+        /* readable? */
+        if (!skb_queue_empty(&sk->sk_receive_queue) ||
+            (sk->sk_shutdown & RCV_SHUTDOWN))
+                mask |= POLLIN | POLLRDNORM;
+
+        /* Connection-based need to check for termination and startup */
+        if (sk->sk_type == SOCK_SEQPACKET) {
+                if (sk->sk_state == TCP_CLOSE)
+                        mask |= POLLHUP;
+                /* connection hasn't started yet? */
+                if (sk->sk_state == TCP_SYN_SENT)
+                        return mask;
+        }
+
+        /* writable? */
+        writable = unix_writable(sk);
+        if (writable) {
+                other = unix_peer_get(sk);
+                if (other) {
+                        if (unix_peer(other) != sk) {
+                                poll_wait(file, &unix_sk(other)->peer_wait,
+                                          wait);
+                                if (unix_recvq_full(other))
+                                        writable = 0;
+                        }
+
+                        sock_put(other);
+                }
+        }
+
+        if (writable)
+                mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
+        else
+                set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+
+        return mask;
+}
 
 #ifdef CONFIG_PROC_FS
 static struct sock *first_unix_socket(int *i)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 2bdd4dddc0e1..fb75f265b39c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -187,7 +187,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
         return genlmsg_end(msg, hdr);
 
  nla_put_failure:
-        return genlmsg_cancel(msg, hdr);
+        genlmsg_cancel(msg, hdr);
+        return -EMSGSIZE;
 }
 
 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
@@ -273,7 +274,8 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
         return genlmsg_end(msg, hdr);
 
  nla_put_failure:
-        return genlmsg_cancel(msg, hdr);
+        genlmsg_cancel(msg, hdr);
+        return -EMSGSIZE;
 }
 
 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
@@ -928,7 +930,8 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
         return genlmsg_end(msg, hdr);
 
  nla_put_failure:
-        return genlmsg_cancel(msg, hdr);
+        genlmsg_cancel(msg, hdr);
+        return -EMSGSIZE;
 }
 
 static int nl80211_dump_station(struct sk_buff *skb,
@@ -1267,7 +1270,8 @@ static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
         return genlmsg_end(msg, hdr);
 
  nla_put_failure:
-        return genlmsg_cancel(msg, hdr);
+        genlmsg_cancel(msg, hdr);
+        return -EMSGSIZE;
 }
 
 static int nl80211_dump_mpath(struct sk_buff *skb,
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 185488da2466..855bff4b3250 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -80,6 +80,23 @@ static const struct ieee80211_channel_range ieee80211_JP_channels[] = {
                                      IEEE80211_CHAN_RADAR),
 };
 
+static const struct ieee80211_channel_range ieee80211_EU_channels[] = {
+        /* IEEE 802.11b/g, channels 1..13 */
+        RANGE_PWR(2412, 2472, 20, 6, 0),
+        /* IEEE 802.11a, channel 36*/
+        RANGE_PWR(5180, 5180, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+        /* IEEE 802.11a, channel 40*/
+        RANGE_PWR(5200, 5200, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+        /* IEEE 802.11a, channel 44*/
+        RANGE_PWR(5220, 5220, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+        /* IEEE 802.11a, channels 48..64 */
+        RANGE_PWR(5240, 5320, 23, 6, IEEE80211_CHAN_NO_IBSS |
+                                     IEEE80211_CHAN_RADAR),
+        /* IEEE 802.11a, channels 100..140 */
+        RANGE_PWR(5500, 5700, 30, 6, IEEE80211_CHAN_NO_IBSS |
+                                     IEEE80211_CHAN_RADAR),
+};
+
 #define REGDOM(_code)                                                   \
         {                                                               \
                 .code = __stringify(_code),                             \
@@ -90,6 +107,7 @@ static const struct ieee80211_channel_range ieee80211_JP_channels[] = {
 static const struct ieee80211_regdomain ieee80211_regdoms[] = {
         REGDOM(US),
         REGDOM(JP),
+        REGDOM(EU),
 };
 
 
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index ac765dd9c7f5..23a2cc04b8cd 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -200,8 +200,8 @@ static struct xfrm_algo_desc aalg_list[] = {
         }
 },
 {
-        .name = "hmac(ripemd160)",
-        .compat = "ripemd160",
+        .name = "hmac(rmd160)",
+        .compat = "rmd160",
 
         .uinfo = {
                 .auth = {
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 09cd9c0c2d80..3f964db908a7 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -25,11 +25,11 @@ static int xfrm_state_check_space(struct xfrm_state *x, struct sk_buff *skb)
         struct dst_entry *dst = skb->dst;
         int nhead = dst->header_len + LL_RESERVED_SPACE(dst->dev)
                 - skb_headroom(skb);
+        int ntail = dst->dev->needed_tailroom - skb_tailroom(skb);
 
-        if (nhead > 0)
-                return pskb_expand_head(skb, nhead, 0, GFP_ATOMIC);
+        if (nhead > 0 || ntail > 0)
+                return pskb_expand_head(skb, nhead, ntail, GFP_ATOMIC);
 
-        /* Check tail too... */
         return 0;
 }
 
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index a1b0fbe3ea35..b976d9ed10e4 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -50,19 +50,8 @@ static int verify_one_alg(struct nlattr **attrs, enum xfrm_attr_type_t type)
 
         switch (type) {
         case XFRMA_ALG_AUTH:
-                if (!algp->alg_key_len &&
-                    strcmp(algp->alg_name, "digest_null") != 0)
-                        return -EINVAL;
-                break;
-
         case XFRMA_ALG_CRYPT:
-                if (!algp->alg_key_len &&
-                    strcmp(algp->alg_name, "cipher_null") != 0)
-                        return -EINVAL;
-                break;
-
         case XFRMA_ALG_COMP:
-                /* Zero length keys are legal.  */
                 break;
 
         default: