Merge branch 'linux-2.6' into for-2.6.22

19 files changed, 1481 insertions, 3325 deletions

diff --git a/net/core/Makefile b/net/core/Makefile
index 73272d506e9..4751613e1b5 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -13,7 +13,6 @@ obj-y		     += dev.o ethtool.o dev_mcast.o dst.o netevent.o \
 obj-$(CONFIG_XFRM) += flow.o
 obj-$(CONFIG_SYSFS) += net-sysfs.o
 obj-$(CONFIG_NET_PKTGEN) += pktgen.o
-obj-$(CONFIG_WIRELESS_EXT) += wireless.o
 obj-$(CONFIG_NETPOLL) += netpoll.o
 obj-$(CONFIG_NET_DMA) += user_dma.o
 obj-$(CONFIG_FIB_RULES) += fib_rules.o
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 186212b5b7d..cb056f47612 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -411,11 +411,11 @@ fault:
 	return -EFAULT;
 }
 
-__sum16 __skb_checksum_complete(struct sk_buff *skb)
+__sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len)
 {
 	__sum16 sum;
 
-	sum = csum_fold(skb_checksum(skb, 0, skb->len, skb->csum));
+	sum = csum_fold(skb_checksum(skb, 0, len, skb->csum));
 	if (likely(!sum)) {
 		if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
 			netdev_rx_csum_fault(skb->dev);
@@ -423,6 +423,12 @@ __sum16 __skb_checksum_complete(struct sk_buff *skb)
 	}
 	return sum;
 }
+EXPORT_SYMBOL(__skb_checksum_complete_head);
+
+__sum16 __skb_checksum_complete(struct sk_buff *skb)
+{
+	return __skb_checksum_complete_head(skb, skb->len);
+}
 EXPORT_SYMBOL(__skb_checksum_complete);
 
 /**
diff --git a/net/core/dev.c b/net/core/dev.c
index 4dc93cc4d5b..d5e42d13bd6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -109,7 +109,7 @@
 #include <linux/netpoll.h>
 #include <linux/rcupdate.h>
 #include <linux/delay.h>
-#include <linux/wireless.h>
+#include <net/wext.h>
 #include <net/iw_handler.h>
 #include <asm/current.h>
 #include <linux/audit.h>
@@ -146,8 +146,8 @@
  */
 
 static DEFINE_SPINLOCK(ptype_lock);
-static struct list_head ptype_base[16];	/* 16 way hashed list */
-static struct list_head ptype_all;		/* Taps */
+static struct list_head ptype_base[16] __read_mostly;	/* 16 way hashed list */
+static struct list_head ptype_all __read_mostly;	/* Taps */
 
 #ifdef CONFIG_NET_DMA
 static struct dma_client *net_dma_client;
@@ -226,12 +226,6 @@ extern void netdev_unregister_sysfs(struct net_device *);
 *******************************************************************************/
 
 /*
- *	For efficiency
- */
-
-static int netdev_nit;
-
-/*
  *	Add a protocol ID to the list. Now that the input handler is
  *	smarter we can dispense with all the messy stuff that used to be
  *	here.
@@ -265,10 +259,9 @@ void dev_add_pack(struct packet_type *pt)
 	int hash;
 
 	spin_lock_bh(&ptype_lock);
-	if (pt->type == htons(ETH_P_ALL)) {
-		netdev_nit++;
+	if (pt->type == htons(ETH_P_ALL))
 		list_add_rcu(&pt->list, &ptype_all);
-	} else {
+	else {
 		hash = ntohs(pt->type) & 15;
 		list_add_rcu(&pt->list, &ptype_base[hash]);
 	}
@@ -295,10 +288,9 @@ void __dev_remove_pack(struct packet_type *pt)
 
 	spin_lock_bh(&ptype_lock);
 
-	if (pt->type == htons(ETH_P_ALL)) {
-		netdev_nit--;
+	if (pt->type == htons(ETH_P_ALL))
 		head = &ptype_all;
-	} else
+	else
 		head = &ptype_base[ntohs(pt->type) & 15];
 
 	list_for_each_entry(pt1, head, list) {
@@ -817,7 +809,6 @@ static int default_rebuild_header(struct sk_buff *skb)
 	return 1;
 }
 
-
 /**
  *	dev_open	- prepare an interface for use.
  *	@dev:	device to open
@@ -1031,23 +1022,12 @@ void net_disable_timestamp(void)
 	atomic_dec(&netstamp_needed);
 }
 
-void __net_timestamp(struct sk_buff *skb)
-{
-	struct timeval tv;
-
-	do_gettimeofday(&tv);
-	skb_set_timestamp(skb, &tv);
-}
-EXPORT_SYMBOL(__net_timestamp);
-
 static inline void net_timestamp(struct sk_buff *skb)
 {
 	if (atomic_read(&netstamp_needed))
 		__net_timestamp(skb);
-	else {
-		skb->tstamp.off_sec = 0;
-		skb->tstamp.off_usec = 0;
-	}
+	else
+		skb->tstamp.tv64 = 0;
 }
 
 /*
@@ -1077,18 +1057,18 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
 			   set by sender, so that the second statement is
 			   just protection against buggy protocols.
 			 */
-			skb2->mac.raw = skb2->data;
+			skb_reset_mac_header(skb2);
 
-			if (skb2->nh.raw < skb2->data ||
-			    skb2->nh.raw > skb2->tail) {
+			if (skb_network_header(skb2) < skb2->data ||
+			    skb2->network_header > skb2->tail) {
 				if (net_ratelimit())
 					printk(KERN_CRIT "protocol %04x is "
 					       "buggy, dev %s\n",
 					       skb2->protocol, dev->name);
-				skb2->nh.raw = skb2->data;
+				skb_reset_network_header(skb2);
 			}
 
-			skb2->h.raw = skb2->nh.raw;
+			skb2->transport_header = skb2->network_header;
 			skb2->pkt_type = PACKET_OUTGOING;
 			ptype->func(skb2, skb->dev, ptype, skb->dev);
 		}
@@ -1167,7 +1147,7 @@ EXPORT_SYMBOL(netif_device_attach);
 int skb_checksum_help(struct sk_buff *skb)
 {
 	__wsum csum;
-	int ret = 0, offset = skb->h.raw - skb->data;
+	int ret = 0, offset;
 
 	if (skb->ip_summed == CHECKSUM_COMPLETE)
 		goto out_set_summed;
@@ -1183,15 +1163,16 @@ int skb_checksum_help(struct sk_buff *skb)
 			goto out;
 	}
 
+	offset = skb->csum_start - skb_headroom(skb);
 	BUG_ON(offset > (int)skb->len);
 	csum = skb_checksum(skb, offset, skb->len-offset, 0);
 
-	offset = skb->tail - skb->h.raw;
+	offset = skb_headlen(skb) - offset;
 	BUG_ON(offset <= 0);
 	BUG_ON(skb->csum_offset + 2 > offset);
 
-	*(__sum16*)(skb->h.raw + skb->csum_offset) = csum_fold(csum);
-
+	*(__sum16 *)(skb->head + skb->csum_start + skb->csum_offset) =
+		csum_fold(csum);
 out_set_summed:
 	skb->ip_summed = CHECKSUM_NONE;
 out:
@@ -1217,11 +1198,11 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
 
 	BUG_ON(skb_shinfo(skb)->frag_list);
 
-	skb->mac.raw = skb->data;
-	skb->mac_len = skb->nh.raw - skb->data;
+	skb_reset_mac_header(skb);
+	skb->mac_len = skb->network_header - skb->mac_header;
 	__skb_pull(skb, skb->mac_len);
 
-	if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
+	if (WARN_ON(skb->ip_summed != CHECKSUM_PARTIAL)) {
 		if (skb_header_cloned(skb) &&
 		    (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
 			return ERR_PTR(err);
@@ -1235,7 +1216,8 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
 				segs = ERR_PTR(err);
 				if (err || skb_gso_ok(skb, features))
 					break;
-				__skb_push(skb, skb->data - skb->nh.raw);
+				__skb_push(skb, (skb->data -
+						 skb_network_header(skb)));
 			}
 			segs = ptype->gso_segment(skb, features);
 			break;
@@ -1243,7 +1225,7 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
 	}
 	rcu_read_unlock();
 
-	__skb_push(skb, skb->data - skb->mac.raw);
+	__skb_push(skb, skb->data - skb_mac_header(skb));
 
 	return segs;
 }
@@ -1340,7 +1322,7 @@ static int dev_gso_segment(struct sk_buff *skb)
 int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	if (likely(!skb->next)) {
-		if (netdev_nit)
+		if (!list_empty(&ptype_all))
 			dev_queue_xmit_nit(skb, dev);
 
 		if (netif_needs_gso(dev, skb)) {
@@ -1442,12 +1424,16 @@ int dev_queue_xmit(struct sk_buff *skb)
 	/* If packet is not checksummed and device does not support
 	 * checksumming for this protocol, complete checksumming here.
 	 */
-	if (skb->ip_summed == CHECKSUM_PARTIAL &&
-	    (!(dev->features & NETIF_F_GEN_CSUM) &&
-	     (!(dev->features & NETIF_F_IP_CSUM) ||
-	      skb->protocol != htons(ETH_P_IP))))
-		if (skb_checksum_help(skb))
-			goto out_kfree_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)))
+			if (skb_checksum_help(skb))
+				goto out_kfree_skb;
+	}
 
 gso:
 	spin_lock_prefetch(&dev->queue_lock);
@@ -1543,9 +1529,9 @@ out:
 			Receiver routines
   =======================================================================*/
 
-int netdev_max_backlog = 1000;
-int netdev_budget = 300;
-int weight_p = 64;            /* old backlog weight */
+int netdev_max_backlog __read_mostly = 1000;
+int netdev_budget __read_mostly = 300;
+int weight_p __read_mostly = 64;            /* old backlog weight */
 
 DEFINE_PER_CPU(struct netif_rx_stats, netdev_rx_stat) = { 0, };
 
@@ -1577,7 +1563,7 @@ int netif_rx(struct sk_buff *skb)
 	if (netpoll_rx(skb))
 		return NET_RX_DROP;
 
-	if (!skb->tstamp.off_sec)
+	if (!skb->tstamp.tv64)
 		net_timestamp(skb);
 
 	/*
@@ -1684,40 +1670,46 @@ static void net_tx_action(struct softirq_action *h)
 	}
 }
 
-static __inline__ int deliver_skb(struct sk_buff *skb,
-				  struct packet_type *pt_prev,
-				  struct net_device *orig_dev)
+static inline int deliver_skb(struct sk_buff *skb,
+			      struct packet_type *pt_prev,
+			      struct net_device *orig_dev)
 {
 	atomic_inc(&skb->users);
 	return pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
 }
 
 #if defined(CONFIG_BRIDGE) || defined (CONFIG_BRIDGE_MODULE)
-int (*br_handle_frame_hook)(struct net_bridge_port *p, struct sk_buff **pskb);
+/* These hooks defined here for ATM */
 struct net_bridge;
 struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br,
 						unsigned char *addr);
-void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent);
+void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent) __read_mostly;
 
-static __inline__ int handle_bridge(struct sk_buff **pskb,
-				    struct packet_type **pt_prev, int *ret,
-				    struct net_device *orig_dev)
+/*
+ * If bridge module is loaded call bridging hook.
+ *  returns NULL if packet was consumed.
+ */
+struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p,
+					struct sk_buff *skb) __read_mostly;
+static inline struct sk_buff *handle_bridge(struct sk_buff *skb,
+					    struct packet_type **pt_prev, int *ret,
+					    struct net_device *orig_dev)
 {
 	struct net_bridge_port *port;
 
-	if ((*pskb)->pkt_type == PACKET_LOOPBACK ||
-	    (port = rcu_dereference((*pskb)->dev->br_port)) == NULL)
-		return 0;
+	if (skb->pkt_type == PACKET_LOOPBACK ||
+	    (port = rcu_dereference(skb->dev->br_port)) == NULL)
+		return skb;
 
 	if (*pt_prev) {
-		*ret = deliver_skb(*pskb, *pt_prev, orig_dev);
+		*ret = deliver_skb(skb, *pt_prev, orig_dev);
 		*pt_prev = NULL;
 	}
 
-	return br_handle_frame_hook(port, pskb);
+	return br_handle_frame_hook(port, skb);
 }
 #else
-#define handle_bridge(skb, pt_prev, ret, orig_dev)	(0)
+#define handle_bridge(skb, pt_prev, ret, orig_dev)	(skb)
 #endif
 
 #ifdef CONFIG_NET_CLS_ACT
@@ -1747,10 +1739,10 @@ static int ing_filter(struct sk_buff *skb)
 
 		skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_INGRESS);
 
-		spin_lock(&dev->queue_lock);
+		spin_lock(&dev->ingress_lock);
 		if ((q = dev->qdisc_ingress) != NULL)
 			result = q->enqueue(skb, q);
-		spin_unlock(&dev->queue_lock);
+		spin_unlock(&dev->ingress_lock);
 
 	}
 
@@ -1769,7 +1761,7 @@ int netif_receive_skb(struct sk_buff *skb)
 	if (skb->dev->poll && netpoll_rx(skb))
 		return NET_RX_DROP;
 
-	if (!skb->tstamp.off_sec)
+	if (!skb->tstamp.tv64)
 		net_timestamp(skb);
 
 	if (!skb->iif)
@@ -1782,8 +1774,9 @@ int netif_receive_skb(struct sk_buff *skb)
 
 	__get_cpu_var(netdev_rx_stat).total++;
 
-	skb->h.raw = skb->nh.raw = skb->data;
-	skb->mac_len = skb->nh.raw - skb->mac.raw;
+	skb_reset_network_header(skb);
+	skb_reset_transport_header(skb);
+	skb->mac_len = skb->network_header - skb->mac_header;
 
 	pt_prev = NULL;
 
@@ -1823,7 +1816,8 @@ int netif_receive_skb(struct sk_buff *skb)
 ncls:
 #endif
 
-	if (handle_bridge(&skb, &pt_prev, &ret, orig_dev))
+	skb = handle_bridge(skb, &pt_prev, &ret, orig_dev);
+	if (!skb)
 		goto out;
 
 	type = skb->protocol;
@@ -2076,7 +2070,7 @@ static int dev_ifconf(char __user *arg)
  *	This is invoked by the /proc filesystem handler to display a device
  *	in detail.
  */
-static __inline__ struct net_device *dev_get_idx(loff_t pos)
+static struct net_device *dev_get_idx(loff_t pos)
 {
 	struct net_device *dev;
 	loff_t i;
@@ -2105,9 +2099,9 @@ void dev_seq_stop(struct seq_file *seq, void *v)
 
 static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
 {
-	if (dev->get_stats) {
-		struct net_device_stats *stats = dev->get_stats(dev);
+	struct net_device_stats *stats = dev->get_stats(dev);
 
+	if (stats) {
 		seq_printf(seq, "%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu "
 				"%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
 			   dev->name, stats->rx_bytes, stats->rx_packets,
@@ -2185,7 +2179,7 @@ static int softnet_seq_show(struct seq_file *seq, void *v)
 	return 0;
 }
 
-static struct seq_operations dev_seq_ops = {
+static const struct seq_operations dev_seq_ops = {
 	.start = dev_seq_start,
 	.next  = dev_seq_next,
 	.stop  = dev_seq_stop,
@@ -2205,7 +2199,7 @@ static const struct file_operations dev_seq_fops = {
 	.release = seq_release,
 };
 
-static struct seq_operations softnet_seq_ops = {
+static const struct seq_operations softnet_seq_ops = {
 	.start = softnet_seq_start,
 	.next  = softnet_seq_next,
 	.stop  = softnet_seq_stop,
@@ -2225,12 +2219,135 @@ static const struct file_operations softnet_seq_fops = {
 	.release = seq_release,
 };
 
-#ifdef CONFIG_WIRELESS_EXT
-extern int wireless_proc_init(void);
-#else
-#define wireless_proc_init() 0
+static void *ptype_get_idx(loff_t pos)
+{
+	struct packet_type *pt = NULL;
+	loff_t i = 0;
+	int t;
+
+	list_for_each_entry_rcu(pt, &ptype_all, list) {
+		if (i == pos)
+			return pt;
+		++i;
+	}
+
+	for (t = 0; t < 16; t++) {
+		list_for_each_entry_rcu(pt, &ptype_base[t], list) {
+			if (i == pos)
+				return pt;
+			++i;
+		}
+	}
+	return NULL;
+}
+
+static void *ptype_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	rcu_read_lock();
+	return *pos ? ptype_get_idx(*pos - 1) : SEQ_START_TOKEN;
+}
+
+static void *ptype_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	struct packet_type *pt;
+	struct list_head *nxt;
+	int hash;
+
+	++*pos;
+	if (v == SEQ_START_TOKEN)
+		return ptype_get_idx(0);
+
+	pt = v;
+	nxt = pt->list.next;
+	if (pt->type == htons(ETH_P_ALL)) {
+		if (nxt != &ptype_all)
+			goto found;
+		hash = 0;
+		nxt = ptype_base[0].next;
+	} else
+		hash = ntohs(pt->type) & 15;
+
+	while (nxt == &ptype_base[hash]) {
+		if (++hash >= 16)
+			return NULL;
+		nxt = ptype_base[hash].next;
+	}
+found:
+	return list_entry(nxt, struct packet_type, list);
+}
+
+static void ptype_seq_stop(struct seq_file *seq, void *v)
+{
+	rcu_read_unlock();
+}
+
+static void ptype_seq_decode(struct seq_file *seq, void *sym)
+{
+#ifdef CONFIG_KALLSYMS
+	unsigned long offset = 0, symsize;
+	const char *symname;
+	char *modname;
+	char namebuf[128];
+
+	symname = kallsyms_lookup((unsigned long)sym, &symsize, &offset,
+				  &modname, namebuf);
+
+	if (symname) {
+		char *delim = ":";
+
+		if (!modname)
+			modname = delim = "";
+		seq_printf(seq, "%s%s%s%s+0x%lx", delim, modname, delim,
+			   symname, offset);
+		return;
+	}
 #endif
 
+	seq_printf(seq, "[%p]", sym);
+}
+
+static int ptype_seq_show(struct seq_file *seq, void *v)
+{
+	struct packet_type *pt = v;
+
+	if (v == SEQ_START_TOKEN)
+		seq_puts(seq, "Type Device      Function\n");
+	else {
+		if (pt->type == htons(ETH_P_ALL))
+			seq_puts(seq, "ALL ");
+		else
+			seq_printf(seq, "%04x", ntohs(pt->type));
+
+		seq_printf(seq, " %-8s ",
+			   pt->dev ? pt->dev->name : "");
+		ptype_seq_decode(seq,  pt->func);
+		seq_putc(seq, '\n');
+	}
+
+	return 0;
+}
+
+static const struct seq_operations ptype_seq_ops = {
+	.start = ptype_seq_start,
+	.next  = ptype_seq_next,
+	.stop  = ptype_seq_stop,
+	.show  = ptype_seq_show,
+};
+
+static int ptype_seq_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &ptype_seq_ops);
+}
+
+static const struct file_operations ptype_seq_fops = {
+	.owner	 = THIS_MODULE,
+	.open    = ptype_seq_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = seq_release,
+};
+
+
 static int __init dev_proc_init(void)
 {
 	int rc = -ENOMEM;
@@ -2239,13 +2356,18 @@ static int __init dev_proc_init(void)
 		goto out;
 	if (!proc_net_fops_create("softnet_stat", S_IRUGO, &softnet_seq_fops))
 		goto out_dev;
-	if (wireless_proc_init())
+	if (!proc_net_fops_create("ptype", S_IRUGO, &ptype_seq_fops))
+		goto out_dev2;
+
+	if (wext_proc_init())
 		goto out_softnet;
 	rc = 0;
 out:
 	return rc;
 out_softnet:
 	proc_net_remove("softnet_stat");
+out_dev2:
+	proc_net_remove("ptype");
 out_dev:
 	proc_net_remove("dev");
 	goto out;
@@ -2795,29 +2917,9 @@ int dev_ioctl(unsigned int cmd, void __user *arg)
 					ret = -EFAULT;
 				return ret;
 			}
-#ifdef CONFIG_WIRELESS_EXT
 			/* Take care of Wireless Extensions */
-			if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) {
-				/* If command is `set a parameter', or
-				 * `get the encoding parameters', check if
-				 * the user has the right to do it */
-				if (IW_IS_SET(cmd) || cmd == SIOCGIWENCODE
-				    || cmd == SIOCGIWENCODEEXT) {
-					if (!capable(CAP_NET_ADMIN))
-						return -EPERM;
-				}
-				dev_load(ifr.ifr_name);
-				rtnl_lock();
-				/* Follow me in net/core/wireless.c */
-				ret = wireless_process_ioctl(&ifr, cmd);
-				rtnl_unlock();
-				if (IW_IS_GET(cmd) &&
-				    copy_to_user(arg, &ifr,
-						 sizeof(struct ifreq)))
-					ret = -EFAULT;
-				return ret;
-			}
-#endif	/* CONFIG_WIRELESS_EXT */
+			if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST)
+				return wext_handle_ioctl(&ifr, cmd, arg);
 			return -EINVAL;
 	}
 }
@@ -2847,7 +2949,7 @@ static int dev_boot_phase = 1;
 static DEFINE_SPINLOCK(net_todo_list_lock);
 static struct list_head net_todo_list = LIST_HEAD_INIT(net_todo_list);
 
-static inline void net_set_todo(struct net_device *dev)
+static void net_set_todo(struct net_device *dev)
 {
 	spin_lock(&net_todo_list_lock);
 	list_add_tail(&dev->todo_list, &net_todo_list);
@@ -2888,9 +2990,7 @@ int register_netdevice(struct net_device *dev)
 	spin_lock_init(&dev->queue_lock);
 	spin_lock_init(&dev->_xmit_lock);
 	dev->xmit_lock_owner = -1;
-#ifdef CONFIG_NET_CLS_ACT
 	spin_lock_init(&dev->ingress_lock);
-#endif
 
 	dev->iflink = -1;
 
@@ -3002,7 +3102,7 @@ out:
  *	chain. 0 is returned on success. A negative errno code is returned
  *	on a failure to set up the device, or if the name is a duplicate.
  *
- *	This is a wrapper around register_netdev that takes the rtnl semaphore
+ *	This is a wrapper around register_netdevice that takes the rtnl semaphore
  *	and expands the device name if you passed a format string to
  *	alloc_netdev.
  */
@@ -3157,6 +3257,13 @@ out:
 	mutex_unlock(&net_todo_run_mutex);
 }
 
+static struct net_device_stats *maybe_internal_stats(struct net_device *dev)
+{
+	if (dev->features & NETIF_F_INTERNAL_STATS)
+		return &dev->stats;
+	return NULL;
+}
+
 /**
  *	alloc_netdev - allocate network device
  *	@sizeof_priv:	size of private data to allocate space for
@@ -3192,6 +3299,7 @@ struct net_device *alloc_netdev(int sizeof_priv, const char *name,
 	if (sizeof_priv)
 		dev->priv = netdev_priv(dev);
 
+	dev->get_stats = maybe_internal_stats;
 	setup(dev);
 	strcpy(dev->name, name);
 	return dev;
diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c
index 56b310c0c86..7d57bf77f3a 100644
--- a/net/core/dev_mcast.c
+++ b/net/core/dev_mcast.c
@@ -264,7 +264,7 @@ static int dev_mc_seq_show(struct seq_file *seq, void *v)
 	return 0;
 }
 
-static struct seq_operations dev_mc_seq_ops = {
+static const struct seq_operations dev_mc_seq_ops = {
 	.start = dev_mc_seq_start,
 	.next  = dev_mc_seq_next,
 	.stop  = dev_mc_seq_stop,
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 6168edd137d..8d5e5a09b57 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -836,7 +836,7 @@ int dev_ethtool(struct ifreq *ifr)
 			return -EPERM;
 	}
 
-	if(dev->ethtool_ops->begin)
+	if (dev->ethtool_ops->begin)
 		if ((rc = dev->ethtool_ops->begin(dev)) < 0)
 			return rc;
 
@@ -952,7 +952,7 @@ int dev_ethtool(struct ifreq *ifr)
 		rc =  -EOPNOTSUPP;
 	}
 
-	if(dev->ethtool_ops->complete)
+	if (dev->ethtool_ops->complete)
 		dev->ethtool_ops->complete(dev);
 
 	if (old_features != dev->features)
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 7174ced75ef..8c5474e1668 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -44,6 +44,12 @@ static void rules_ops_put(struct fib_rules_ops *ops)
 		module_put(ops->owner);
 }
 
+static void flush_route_cache(struct fib_rules_ops *ops)
+{
+	if (ops->flush_cache)
+		ops->flush_cache();
+}
+
 int fib_rules_register(struct fib_rules_ops *ops)
 {
 	int err = -EEXIST;
@@ -132,10 +138,25 @@ int fib_rules_lookup(struct fib_rules_ops *ops, struct flowi *fl,
 	rcu_read_lock();
 
 	list_for_each_entry_rcu(rule, ops->rules_list, list) {
+jumped:
 		if (!fib_rule_match(rule, ops, fl, flags))
 			continue;
 
-		err = ops->action(rule, fl, flags, arg);
+		if (rule->action == FR_ACT_GOTO) {
+			struct fib_rule *target;
+
+			target = rcu_dereference(rule->ctarget);
+			if (target == NULL) {
+				continue;
+			} else {
+				rule = target;
+				goto jumped;
+			}
+		} else if (rule->action == FR_ACT_NOP)
+			continue;
+		else
+			err = ops->action(rule, fl, flags, arg);
+
 		if (err != -EAGAIN) {
 			fib_rule_get(rule);
 			arg->rule = rule;
@@ -174,13 +195,13 @@ errout:
 	return err;
 }
 
-int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
+static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 {
 	struct fib_rule_hdr *frh = nlmsg_data(nlh);
 	struct fib_rules_ops *ops = NULL;
 	struct fib_rule *rule, *r, *last = NULL;
 	struct nlattr *tb[FRA_MAX+1];
-	int err = -EINVAL;
+	int err = -EINVAL, unresolved = 0;
 
 	if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*frh)))
 		goto errout;
@@ -237,6 +258,28 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 	if (!rule->pref && ops->default_pref)
 		rule->pref = ops->default_pref();
 
+	err = -EINVAL;
+	if (tb[FRA_GOTO]) {
+		if (rule->action != FR_ACT_GOTO)
+			goto errout_free;
+
+		rule->target = nla_get_u32(tb[FRA_GOTO]);
+		/* Backward jumps are prohibited to avoid endless loops */
+		if (rule->target <= rule->pref)
+			goto errout_free;
+
+		list_for_each_entry(r, ops->rules_list, list) {
+			if (r->pref == rule->target) {
+				rule->ctarget = r;
+				break;
+			}
+		}
+
+		if (rule->ctarget == NULL)
+			unresolved = 1;
+	} else if (rule->action == FR_ACT_GOTO)
+		goto errout_free;
+
 	err = ops->configure(rule, skb, nlh, frh, tb);
 	if (err < 0)
 		goto errout_free;
@@ -249,12 +292,35 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
 	fib_rule_get(rule);
 
+	if (ops->unresolved_rules) {
+		/*
+		 * There are unresolved goto rules in the list, check if
+		 * any of them are pointing to this new rule.
+		 */
+		list_for_each_entry(r, ops->rules_list, list) {
+			if (r->action == FR_ACT_GOTO &&
+			    r->target == rule->pref) {
+				BUG_ON(r->ctarget != NULL);
+				rcu_assign_pointer(r->ctarget, rule);
+				if (--ops->unresolved_rules == 0)
+					break;
+			}
+		}
+	}
+
+	if (rule->action == FR_ACT_GOTO)
+		ops->nr_goto_rules++;
+
+	if (unresolved)
+		ops->unresolved_rules++;
+
 	if (last)
 		list_add_rcu(&rule->list, &last->list);
 	else
 		list_add_rcu(&rule->list, ops->rules_list);
 
 	notify_rule_change(RTM_NEWRULE, rule, ops, nlh, NETLINK_CB(skb).pid);
+	flush_route_cache(ops);
 	rules_ops_put(ops);
 	return 0;
 
@@ -265,11 +331,11 @@ errout:
 	return err;
 }
 
-int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
+static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 {
 	struct fib_rule_hdr *frh = nlmsg_data(nlh);
 	struct fib_rules_ops *ops = NULL;
-	struct fib_rule *rule;
+	struct fib_rule *rule, *tmp;
 	struct nlattr *tb[FRA_MAX+1];
 	int err = -EINVAL;
 
@@ -322,10 +388,30 @@ int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 		}
 
 		list_del_rcu(&rule->list);
+
+		if (rule->action == FR_ACT_GOTO)
+			ops->nr_goto_rules--;
+
+		/*
+		 * Check if this rule is a target to any of them. If so,
+		 * disable them. As this operation is eventually very
+		 * expensive, it is only performed if goto rules have
+		 * actually been added.
+		 */
+		if (ops->nr_goto_rules > 0) {
+			list_for_each_entry(tmp, ops->rules_list, list) {
+				if (tmp->ctarget == rule) {
+					rcu_assign_pointer(tmp->ctarget, NULL);
+					ops->unresolved_rules++;
+				}
+			}
+		}
+
 		synchronize_rcu();
 		notify_rule_change(RTM_DELRULE, rule, ops, nlh,
 				   NETLINK_CB(skb).pid);
 		fib_rule_put(rule);
+		flush_route_cache(ops);
 		rules_ops_put(ops);
 		return 0;
 	}
@@ -371,9 +457,16 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule,
 	frh->action = rule->action;
 	frh->flags = rule->flags;
 
-	if (rule->ifname[0])
+	if (rule->action == FR_ACT_GOTO && rule->ctarget == NULL)
+		frh->flags |= FIB_RULE_UNRESOLVED;
+
+	if (rule->ifname[0]) {
 		NLA_PUT_STRING(skb, FRA_IFNAME, rule->ifname);
 
+		if (rule->ifindex == -1)
+			frh->flags |= FIB_RULE_DEV_DETACHED;
+	}
+
 	if (rule->pref)
 		NLA_PUT_U32(skb, FRA_PRIORITY, rule->pref);
 
@@ -383,6 +476,9 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule,
 	if (rule->mark_mask || rule->mark)
 		NLA_PUT_U32(skb, FRA_FWMASK, rule->mark_mask);
 
+	if (rule->target)
+		NLA_PUT_U32(skb, FRA_GOTO, rule->target);
+
 	if (ops->fill(rule, skb, nlh, frh) < 0)
 		goto nla_put_failure;
 
@@ -393,19 +489,14 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
-int fib_rules_dump(struct sk_buff *skb, struct netlink_callback *cb, int family)
+static int dump_rules(struct sk_buff *skb, struct netlink_callback *cb,
+		      struct fib_rules_ops *ops)
 {
 	int idx = 0;
 	struct fib_rule *rule;
-	struct fib_rules_ops *ops;
-
-	ops = lookup_rules_ops(family);
-	if (ops == NULL)
-		return -EAFNOSUPPORT;
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(rule, ops->rules_list, list) {
-		if (idx < cb->args[0])
+	list_for_each_entry(rule, ops->rules_list, list) {
+		if (idx < cb->args[1])
 			goto skip;
 
 		if (fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).pid,
@@ -415,14 +506,44 @@ int fib_rules_dump(struct sk_buff *skb, struct netlink_callback *cb, int family)
 skip:
 		idx++;
 	}
-	rcu_read_unlock();
-	cb->args[0] = idx;
+	cb->args[1] = idx;
 	rules_ops_put(ops);
 
 	return skb->len;
 }
 
-EXPORT_SYMBOL_GPL(fib_rules_dump);
+static int fib_nl_dumprule(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct fib_rules_ops *ops;
+	int idx = 0, family;
+
+	family = rtnl_msg_family(cb->nlh);
+	if (family != AF_UNSPEC) {
+		/* Protocol specific dump request */
+		ops = lookup_rules_ops(family);
+		if (ops == NULL)
+			return -EAFNOSUPPORT;
+
+		return dump_rules(skb, cb, ops);
+	}
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(ops, &rules_ops, list) {
+		if (idx < cb->args[0] || !try_module_get(ops->owner))
+			goto skip;
+
+		if (dump_rules(skb, cb, ops) < 0)
+			break;
+
+		cb->args[1] = 0;
+	skip:
+		idx++;
+	}
+	rcu_read_unlock();
+	cb->args[0] = idx;
+
+	return skb->len;
+}
 
 static void notify_rule_change(int event, struct fib_rule *rule,
 			       struct fib_rules_ops *ops, struct nlmsghdr *nlh,
@@ -501,6 +622,10 @@ static struct notifier_block fib_rules_notifier = {
 
 static int __init fib_rules_init(void)
 {
+	rtnl_register(PF_UNSPEC, RTM_NEWRULE, fib_nl_newrule, NULL);
+	rtnl_register(PF_UNSPEC, RTM_DELRULE, fib_nl_delrule, NULL);
+	rtnl_register(PF_UNSPEC, RTM_GETRULE, NULL, fib_nl_dumprule);
+
 	return register_netdevice_notifier(&fib_rules_notifier);
 }
 
diff --git a/net/core/filter.c b/net/core/filter.c
index 8d185a089c5..bd903aaf7aa 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -42,11 +42,11 @@ static void *__load_pointer(struct sk_buff *skb, int k)
 	u8 *ptr = NULL;
 
 	if (k >= SKF_NET_OFF)
-		ptr = skb->nh.raw + k - SKF_NET_OFF;
+		ptr = skb_network_header(skb) + k - SKF_NET_OFF;
 	else if (k >= SKF_LL_OFF)
-		ptr = skb->mac.raw + k - SKF_LL_OFF;
+		ptr = skb_mac_header(skb) + k - SKF_LL_OFF;
 
-	if (ptr >= skb->head && ptr < skb->tail)
+	if (ptr >= skb->head && ptr < skb_tail_pointer(skb))
 		return ptr;
 	return NULL;
 }
diff --git a/net/core/gen_stats.c b/net/core/gen_stats.c
index 259473d0559..bcc25591d8a 100644
--- a/net/core/gen_stats.c
+++ b/net/core/gen_stats.c
@@ -61,7 +61,7 @@ gnet_stats_start_copy_compat(struct sk_buff *skb, int type, int tc_stats_type,
 	spin_lock_bh(lock);
 	d->lock = lock;
 	if (type)
-		d->tail = (struct rtattr *) skb->tail;
+		d->tail = (struct rtattr *)skb_tail_pointer(skb);
 	d->skb = skb;
 	d->compat_tc_stats = tc_stats_type;
 	d->compat_xstats = xstats_type;
@@ -212,7 +212,7 @@ int
 gnet_stats_finish_copy(struct gnet_dump *d)
 {
 	if (d->tail)
-		d->tail->rta_len = d->skb->tail - (u8 *) d->tail;
+		d->tail->rta_len = skb_tail_pointer(d->skb) - (u8 *)d->tail;
 
 	if (d->compat_tc_stats)
 		if (gnet_stats_copy(d, d->compat_tc_stats, &d->tc_stats,
diff --git a/net/core/link_watch.c b/net/core/link_watch.c
index 8b45c9d3b24..e3c26a9ccad 100644
--- a/net/core/link_watch.c
+++ b/net/core/link_watch.c
@@ -79,7 +79,7 @@ static void rfc2863_policy(struct net_device *dev)
 	case IF_LINK_MODE_DEFAULT:
 	default:
 		break;
-	};
+	}
 
 	dev->operstate = operstate;
 
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index cfc60019cf9..6f3bb73053c 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1125,7 +1125,7 @@ int neigh_compat_output(struct sk_buff *skb)
 {
 	struct net_device *dev = skb->dev;
 
-	__skb_pull(skb, skb->nh.raw - skb->data);
+	__skb_pull(skb, skb_network_offset(skb));
 
 	if (dev->hard_header &&
 	    dev->hard_header(skb, dev, ntohs(skb->protocol), NULL, NULL,
@@ -1147,7 +1147,7 @@ int neigh_resolve_output(struct sk_buff *skb)
 	if (!dst || !(neigh = dst->neighbour))
 		goto discard;
 
-	__skb_pull(skb, skb->nh.raw - skb->data);
+	__skb_pull(skb, skb_network_offset(skb));
 
 	if (!neigh_event_send(neigh, skb)) {
 		int err;
@@ -1190,7 +1190,7 @@ int neigh_connected_output(struct sk_buff *skb)
 	struct neighbour *neigh = dst->neighbour;
 	struct net_device *dev = neigh->dev;
 
-	__skb_pull(skb, skb->nh.raw - skb->data);
+	__skb_pull(skb, skb_network_offset(skb));
 
 	read_lock_bh(&neigh->lock);
 	err = dev->hard_header(skb, dev, ntohs(skb->protocol),
@@ -1331,6 +1331,8 @@ void neigh_parms_destroy(struct neigh_parms *parms)
 	kfree(parms);
 }
 
+static struct lock_class_key neigh_table_proxy_queue_class;
+
 void neigh_table_init_no_netlink(struct neigh_table *tbl)
 {
 	unsigned long now = jiffies;
@@ -1379,7 +1381,8 @@ void neigh_table_init_no_netlink(struct neigh_table *tbl)
 	init_timer(&tbl->proxy_timer);
 	tbl->proxy_timer.data	  = (unsigned long)tbl;
 	tbl->proxy_timer.function = neigh_proxy_process;
-	skb_queue_head_init(&tbl->proxy_queue);
+	skb_queue_head_init_class(&tbl->proxy_queue,
+			&neigh_table_proxy_queue_class);
 
 	tbl->last_flush = now;
 	tbl->last_rand	= now + tbl->parms.reachable_time * 20;
@@ -1438,7 +1441,7 @@ int neigh_table_clear(struct neigh_table *tbl)
 	return 0;
 }
 
-int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
 	struct ndmsg *ndm;
 	struct nlattr *dst_attr;
@@ -1503,7 +1506,7 @@ out:
 	return err;
 }
 
-int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
 	struct ndmsg *ndm;
 	struct nlattr *tb[NDA_MAX+1];
@@ -1783,7 +1786,7 @@ static struct nla_policy nl_ntbl_parm_policy[NDTPA_MAX+1] __read_mostly = {
 	[NDTPA_LOCKTIME]		= { .type = NLA_U64 },
 };
 
-int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
 	struct neigh_table *tbl;
 	struct ndtmsg *ndtmsg;
@@ -1907,7 +1910,7 @@ errout:
 	return err;
 }
 
-int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
+static int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	int family, tidx, nidx = 0;
 	int tbl_skip = cb->args[0];
@@ -2031,7 +2034,7 @@ out:
 	return rc;
 }
 
-int neigh_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
+static int neigh_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct neigh_table *tbl;
 	int t, family, s_t;
@@ -2390,7 +2393,7 @@ static int neigh_stat_seq_show(struct seq_file *seq, void *v)
 	return 0;
 }
 
-static struct seq_operations neigh_stat_seq_ops = {
+static const struct seq_operations neigh_stat_seq_ops = {
 	.start	= neigh_stat_seq_start,
 	.next	= neigh_stat_seq_next,
 	.stop	= neigh_stat_seq_stop,
@@ -2743,14 +2746,26 @@ void neigh_sysctl_unregister(struct neigh_parms *p)
 
 #endif	/* CONFIG_SYSCTL */
 
+static int __init neigh_init(void)
+{
+	rtnl_register(PF_UNSPEC, RTM_NEWNEIGH, neigh_add, NULL);
+	rtnl_register(PF_UNSPEC, RTM_DELNEIGH, neigh_delete, NULL);
+	rtnl_register(PF_UNSPEC, RTM_GETNEIGH, NULL, neigh_dump_info);
+
+	rtnl_register(PF_UNSPEC, RTM_GETNEIGHTBL, NULL, neightbl_dump_info);
+	rtnl_register(PF_UNSPEC, RTM_SETNEIGHTBL, neightbl_set, NULL);
+
+	return 0;
+}
+
+subsys_initcall(neigh_init);
+
 EXPORT_SYMBOL(__neigh_event_send);
 EXPORT_SYMBOL(neigh_changeaddr);
 EXPORT_SYMBOL(neigh_compat_output);
 EXPORT_SYMBOL(neigh_connected_output);
 EXPORT_SYMBOL(neigh_create);
-EXPORT_SYMBOL(neigh_delete);
 EXPORT_SYMBOL(neigh_destroy);
-EXPORT_SYMBOL(neigh_dump_info);
 EXPORT_SYMBOL(neigh_event_ns);
 EXPORT_SYMBOL(neigh_ifdown);
 EXPORT_SYMBOL(neigh_lookup);
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 4cbb1290a6a..b21307b15b8 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -352,8 +352,8 @@ static ssize_t wireless_show(struct device *d, char *buf,
 
 	read_lock(&dev_base_lock);
 	if (dev_isalive(dev)) {
-		if(dev->wireless_handlers &&
-		   dev->wireless_handlers->get_wireless_stats)
+		if (dev->wireless_handlers &&
+		    dev->wireless_handlers->get_wireless_stats)
 			iw = dev->wireless_handlers->get_wireless_stats(dev);
 		if (iw != NULL)
 			ret = (*format)(iw, buf);
@@ -412,20 +412,25 @@ static int netdev_uevent(struct device *d, char **envp,
 			 int num_envp, char *buf, int size)
 {
 	struct net_device *dev = to_net_dev(d);
-	int i = 0;
-	int n;
+	int retval, len = 0, i = 0;
 
 	/* pass interface to uevent. */
-	envp[i++] = buf;
-	n = snprintf(buf, size, "INTERFACE=%s", dev->name) + 1;
-	buf += n;
-	size -= n;
-
-	if ((size <= 0) || (i >= num_envp))
-		return -ENOMEM;
-
+	retval = add_uevent_var(envp, num_envp, &i,
+				buf, size, &len,
+				"INTERFACE=%s", dev->name);
+	if (retval)
+		goto exit;
+
+	/* pass ifindex to uevent.
+	 * ifindex is useful as it won't change (interface name may change)
+	 * and is what RtNetlink uses natively. */
+	retval = add_uevent_var(envp, num_envp, &i,
+				buf, size, &len,
+				"IFINDEX=%d", dev->ifindex);
+
+exit:
 	envp[i] = NULL;
-	return 0;
+	return retval;
 }
 #endif
 
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index da1019451cc..b316435b0e2 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -86,7 +86,7 @@ static __sum16 checksum_udp(struct sk_buff *skb, struct udphdr *uh,
 {
 	__wsum psum;
 
-	if (uh->check == 0 || skb->ip_summed == CHECKSUM_UNNECESSARY)
+	if (uh->check == 0 || skb_csum_unnecessary(skb))
 		return 0;
 
 	psum = csum_tcpudp_nofold(saddr, daddr, ulen, IPPROTO_UDP, 0);
@@ -293,10 +293,12 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 	if (!skb)
 		return;
 
-	memcpy(skb->data, msg, len);
+	skb_copy_to_linear_data(skb, msg, len);
 	skb->len += len;
 
-	skb->h.uh = udph = (struct udphdr *) skb_push(skb, sizeof(*udph));
+	skb_push(skb, sizeof(*udph));
+	skb_reset_transport_header(skb);
+	udph = udp_hdr(skb);
 	udph->source = htons(np->local_port);
 	udph->dest = htons(np->remote_port);
 	udph->len = htons(udp_len);
@@ -308,7 +310,9 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 	if (udph->check == 0)
 		udph->check = CSUM_MANGLED_0;
 
-	skb->nh.iph = iph = (struct iphdr *)skb_push(skb, sizeof(*iph));
+	skb_push(skb, sizeof(*iph));
+	skb_reset_network_header(skb);
+	iph = ip_hdr(skb);
 
 	/* iph->version = 4; iph->ihl = 5; */
 	put_unaligned(0x45, (unsigned char *)iph);
@@ -324,7 +328,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 	iph->check    = ip_fast_csum((unsigned char *)iph, iph->ihl);
 
 	eth = (struct ethhdr *) skb_push(skb, ETH_HLEN);
-	skb->mac.raw = skb->data;
+	skb_reset_mac_header(skb);
 	skb->protocol = eth->h_proto = htons(ETH_P_IP);
 	memcpy(eth->h_source, np->local_mac, 6);
 	memcpy(eth->h_dest, np->remote_mac, 6);
@@ -359,8 +363,9 @@ static void arp_reply(struct sk_buff *skb)
 				 (2 * sizeof(u32)))))
 		return;
 
-	skb->h.raw = skb->nh.raw = skb->data;
-	arp = skb->nh.arph;
+	skb_reset_network_header(skb);
+	skb_reset_transport_header(skb);
+	arp = arp_hdr(skb);
 
 	if ((arp->ar_hrd != htons(ARPHRD_ETHER) &&
 	     arp->ar_hrd != htons(ARPHRD_IEEE802)) ||
@@ -389,7 +394,7 @@ static void arp_reply(struct sk_buff *skb)
 	if (!send_skb)
 		return;
 
-	send_skb->nh.raw = send_skb->data;
+	skb_reset_network_header(send_skb);
 	arp = (struct arphdr *) skb_put(send_skb, size);
 	send_skb->dev = skb->dev;
 	send_skb->protocol = htons(ETH_P_ARP);
@@ -443,7 +448,7 @@ int __netpoll_rx(struct sk_buff *skb)
 		goto out;
 
 	/* check if netpoll clients need ARP */
-	if (skb->protocol == __constant_htons(ETH_P_ARP) &&
+	if (skb->protocol == htons(ETH_P_ARP) &&
 	    atomic_read(&trapped)) {
 		skb_queue_tail(&npi->arp_tx, skb);
 		return 1;
@@ -471,6 +476,13 @@ int __netpoll_rx(struct sk_buff *skb)
 	if (skb->len < len || len < iph->ihl*4)
 		goto out;
 
+	/*
+	 * Our transport medium may have padded the buffer out.
+	 * Now We trim to the true length of the frame.
+	 */
+	if (pskb_trim_rcsum(skb, len))
+		goto out;
+
 	if (iph->protocol != IPPROTO_UDP)
 		goto out;
 
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 74a9a32b906..b92a322872a 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -129,6 +129,7 @@
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <linux/capability.h>
+#include <linux/freezer.h>
 #include <linux/delay.h>
 #include <linux/timer.h>
 #include <linux/list.h>
@@ -163,14 +164,11 @@
 
 #define VERSION  "pktgen v2.68: Packet Generator for packet performance testing.\n"
 
-/* #define PG_DEBUG(a) a */
-#define PG_DEBUG(a)
-
 /* The buckets are exponential in 'width' */
 #define LAT_BUCKETS_MAX 32
 #define IP_NAME_SZ 32
 #define MAX_MPLS_LABELS 16 /* This is the max label stack depth */
-#define MPLS_STACK_BOTTOM __constant_htonl(0x00000100)
+#define MPLS_STACK_BOTTOM htonl(0x00000100)
 
 /* Device flag bits */
 #define F_IPSRC_RND   (1<<0)	/* IP-Src Random  */
@@ -213,15 +211,11 @@ struct flow_state {
 };
 
 struct pktgen_dev {
-
 	/*
 	 * Try to keep frequent/infrequent used vars. separated.
 	 */
-
-	char ifname[IFNAMSIZ];
-	char result[512];
-
-	struct pktgen_thread *pg_thread;	/* the owner */
+	struct proc_dir_entry *entry;	/* proc file */
+	struct pktgen_thread *pg_thread;/* the owner */
 	struct list_head list;		/* Used for chaining in the thread's run-queue */
 
 	int running;		/* if this changes to false, the test will stop */
@@ -348,6 +342,8 @@ struct pktgen_dev {
 	unsigned cflows;	/* Concurrent flows (config) */
 	unsigned lflow;		/* Flow length  (config) */
 	unsigned nflows;	/* accumulated flows (stats) */
+
+	char result[512];
 };
 
 struct pktgen_hdr {
@@ -467,17 +463,6 @@ static inline __u64 pg_div64(__u64 n, __u64 base)
 	return tmp;
 }
 
-static inline u32 pktgen_random(void)
-{
-#if 0
-	__u32 n;
-	get_random_bytes(&n, 4);
-	return n;
-#else
-	return net_random();
-#endif
-}
-
 static inline __u64 getCurMs(void)
 {
 	struct timeval tv;
@@ -511,7 +496,7 @@ static void pktgen_stop_all_threads_ifs(void);
 static int pktgen_stop_device(struct pktgen_dev *pkt_dev);
 static void pktgen_stop(struct pktgen_thread *t);
 static void pktgen_clear_counters(struct pktgen_dev *pkt_dev);
-static int pktgen_mark_device(const char *ifname);
+
 static unsigned int scan_ip6(const char *s, char ip[16]);
 static unsigned int fmt_ip6(char *s, const char ip[16]);
 
@@ -605,7 +590,7 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
 		   "     frags: %d  delay: %u  clone_skb: %d  ifname: %s\n",
 		   pkt_dev->nfrags,
 		   1000 * pkt_dev->delay_us + pkt_dev->delay_ns,
-		   pkt_dev->clone_skb, pkt_dev->ifname);
+		   pkt_dev->clone_skb, pkt_dev->odev->name);
 
 	seq_printf(seq, "     flows: %u flowlen: %u\n", pkt_dev->cflows,
 		   pkt_dev->lflow);
@@ -660,7 +645,7 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
 	if (pkt_dev->nr_labels) {
 		unsigned i;
 		seq_printf(seq, "     mpls: ");
-		for(i = 0; i < pkt_dev->nr_labels; i++)
+		for (i = 0; i < pkt_dev->nr_labels; i++)
 			seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]),
 				   i == pkt_dev->nr_labels-1 ? "\n" : ", ");
 	}
@@ -765,7 +750,7 @@ static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, __u32
 	int i = 0;
 	*num = 0;
 
-	for(; i < maxlen; i++) {
+	for (; i < maxlen; i++) {
 		char c;
 		*num <<= 4;
 		if (get_user(c, &user_buffer[i]))
@@ -801,7 +786,7 @@ static int count_trail_chars(const char __user * user_buffer,
 			break;
 		default:
 			goto done;
-		};
+		}
 	}
 done:
 	return i;
@@ -844,7 +829,7 @@ static int strn_len(const char __user * user_buffer, unsigned int maxlen)
 			break;
 		default:
 			break;
-		};
+		}
 	}
 done_str:
 	return i;
@@ -873,7 +858,7 @@ static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev)
 		n++;
 		if (n >= MAX_MPLS_LABELS)
 			return -E2BIG;
-	} while(c == ',');
+	} while (c == ',');
 
 	pkt_dev->nr_labels = n;
 	return i;
@@ -1502,7 +1487,7 @@ static ssize_t pktgen_if_write(struct file *file,
 		if (len < 0) { return len; }
 		i += len;
 		offset = sprintf(pg_result, "OK: mpls=");
-		for(n = 0; n < pkt_dev->nr_labels; n++)
+		for (n = 0; n < pkt_dev->nr_labels; n++)
 			offset += sprintf(pg_result + offset,
 					  "%08x%s", ntohl(pkt_dev->labels[n]),
 					  n == pkt_dev->nr_labels-1 ? "" : ",");
@@ -1696,13 +1681,13 @@ static int pktgen_thread_show(struct seq_file *seq, void *v)
 	if_lock(t);
 	list_for_each_entry(pkt_dev, &t->if_list, list)
 		if (pkt_dev->running)
-			seq_printf(seq, "%s ", pkt_dev->ifname);
+			seq_printf(seq, "%s ", pkt_dev->odev->name);
 
 	seq_printf(seq, "\nStopped: ");
 
 	list_for_each_entry(pkt_dev, &t->if_list, list)
 		if (!pkt_dev->running)
-			seq_printf(seq, "%s ", pkt_dev->ifname);
+			seq_printf(seq, "%s ", pkt_dev->odev->name);
 
 	if (t->result[0])
 		seq_printf(seq, "\nResult: %s\n", t->result);
@@ -1848,16 +1833,14 @@ static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove)
 /*
  * mark a device for removal
  */
-static int pktgen_mark_device(const char *ifname)
+static void pktgen_mark_device(const char *ifname)
 {
 	struct pktgen_dev *pkt_dev = NULL;
 	const int max_tries = 10, msec_per_try = 125;
 	int i = 0;
-	int ret = 0;
 
 	mutex_lock(&pktgen_thread_lock);
-	PG_DEBUG(printk("pktgen: pktgen_mark_device marking %s for removal\n",
-			ifname));
+	pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname);
 
 	while (1) {
 
@@ -1866,8 +1849,8 @@ static int pktgen_mark_device(const char *ifname)
 			break;	/* success */
 
 		mutex_unlock(&pktgen_thread_lock);
-		PG_DEBUG(printk("pktgen: pktgen_mark_device waiting for %s "
-				"to disappear....\n", ifname));
+		pr_debug("pktgen: pktgen_mark_device waiting for %s "
+				"to disappear....\n", ifname);
 		schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try));
 		mutex_lock(&pktgen_thread_lock);
 
@@ -1875,79 +1858,91 @@ static int pktgen_mark_device(const char *ifname)
 			printk("pktgen_mark_device: timed out after waiting "
 			       "%d msec for device %s to be removed\n",
 			       msec_per_try * i, ifname);
-			ret = 1;
 			break;
 		}
 
 	}
 
 	mutex_unlock(&pktgen_thread_lock);
+}
 
-	return ret;
+static void pktgen_change_name(struct net_device *dev)
+{
+	struct pktgen_thread *t;
+
+	list_for_each_entry(t, &pktgen_threads, th_list) {
+		struct pktgen_dev *pkt_dev;
+
+		list_for_each_entry(pkt_dev, &t->if_list, list) {
+			if (pkt_dev->odev != dev)
+				continue;
+
+			remove_proc_entry(pkt_dev->entry->name, pg_proc_dir);
+
+			pkt_dev->entry = create_proc_entry(dev->name, 0600,
+							   pg_proc_dir);
+			if (!pkt_dev->entry)
+				printk(KERN_ERR "pktgen: can't move proc "
+				       " entry for '%s'\n", dev->name);
+			break;
+		}
+	}
 }
 
 static int pktgen_device_event(struct notifier_block *unused,
 			       unsigned long event, void *ptr)
 {
-	struct net_device *dev = (struct net_device *)(ptr);
+	struct net_device *dev = ptr;
 
 	/* It is OK that we do not hold the group lock right now,
 	 * as we run under the RTNL lock.
 	 */
 
 	switch (event) {
-	case NETDEV_CHANGEADDR:
-	case NETDEV_GOING_DOWN:
-	case NETDEV_DOWN:
-	case NETDEV_UP:
-		/* Ignore for now */
+	case NETDEV_CHANGENAME:
+		pktgen_change_name(dev);
 		break;
 
 	case NETDEV_UNREGISTER:
 		pktgen_mark_device(dev->name);
 		break;
-	};
+	}
 
 	return NOTIFY_DONE;
 }
 
 /* Associate pktgen_dev with a device. */
 
-static struct net_device *pktgen_setup_dev(struct pktgen_dev *pkt_dev)
+static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname)
 {
 	struct net_device *odev;
+	int err;
 
 	/* Clean old setups */
-
 	if (pkt_dev->odev) {
 		dev_put(pkt_dev->odev);
 		pkt_dev->odev = NULL;
 	}
 
-	odev = dev_get_by_name(pkt_dev->ifname);
-
+	odev = dev_get_by_name(ifname);
 	if (!odev) {
-		printk("pktgen: no such netdevice: \"%s\"\n", pkt_dev->ifname);
-		goto out;
+		printk("pktgen: no such netdevice: \"%s\"\n", ifname);
+		return -ENODEV;
 	}
+
 	if (odev->type != ARPHRD_ETHER) {
-		printk("pktgen: not an ethernet device: \"%s\"\n",
-		       pkt_dev->ifname);
-		goto out_put;
-	}
-	if (!netif_running(odev)) {
-		printk("pktgen: device is down: \"%s\"\n", pkt_dev->ifname);
-		goto out_put;
+		printk("pktgen: not an ethernet device: \"%s\"\n", ifname);
+		err = -EINVAL;
+	} else if (!netif_running(odev)) {
+		printk("pktgen: device is down: \"%s\"\n", ifname);
+		err = -ENETDOWN;
+	} else {
+		pkt_dev->odev = odev;
+		return 0;
 	}
-	pkt_dev->odev = odev;
-
-	return pkt_dev->odev;
 
-out_put:
 	dev_put(odev);
-out:
-	return NULL;
-
+	return err;
 }
 
 /* Read pkt_dev from the interface and set up internal pktgen_dev
@@ -1955,10 +1950,6 @@ out:
  */
 static void pktgen_setup_inject(struct pktgen_dev *pkt_dev)
 {
-	/* Try once more, just in case it works now. */
-	if (!pkt_dev->odev)
-		pktgen_setup_dev(pkt_dev);
-
 	if (!pkt_dev->odev) {
 		printk("pktgen: ERROR: pkt_dev->odev == NULL in setup_inject.\n");
 		sprintf(pkt_dev->result,
@@ -2095,7 +2086,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 	int flow = 0;
 
 	if (pkt_dev->cflows) {
-		flow = pktgen_random() % pkt_dev->cflows;
+		flow = random32() % pkt_dev->cflows;
 
 		if (pkt_dev->flows[flow].count > pkt_dev->lflow)
 			pkt_dev->flows[flow].count = 0;
@@ -2107,7 +2098,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 		__u32 tmp;
 
 		if (pkt_dev->flags & F_MACSRC_RND)
-			mc = pktgen_random() % (pkt_dev->src_mac_count);
+			mc = random32() % pkt_dev->src_mac_count;
 		else {
 			mc = pkt_dev->cur_src_mac_offset++;
 			if (pkt_dev->cur_src_mac_offset >
@@ -2133,7 +2124,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 		__u32 tmp;
 
 		if (pkt_dev->flags & F_MACDST_RND)
-			mc = pktgen_random() % (pkt_dev->dst_mac_count);
+			mc = random32() % pkt_dev->dst_mac_count;
 
 		else {
 			mc = pkt_dev->cur_dst_mac_offset++;
@@ -2157,27 +2148,26 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 
 	if (pkt_dev->flags & F_MPLS_RND) {
 		unsigned i;
-		for(i = 0; i < pkt_dev->nr_labels; i++)
+		for (i = 0; i < pkt_dev->nr_labels; i++)
 			if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM)
 				pkt_dev->labels[i] = MPLS_STACK_BOTTOM |
-					     ((__force __be32)pktgen_random() &
+					     ((__force __be32)random32() &
 						      htonl(0x000fffff));
 	}
 
 	if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) {
-		pkt_dev->vlan_id = pktgen_random() % 4096;
+		pkt_dev->vlan_id = random32() & (4096-1);
 	}
 
 	if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) {
-		pkt_dev->svlan_id = pktgen_random() % 4096;
+		pkt_dev->svlan_id = random32() & (4096 - 1);
 	}
 
 	if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) {
 		if (pkt_dev->flags & F_UDPSRC_RND)
-			pkt_dev->cur_udp_src =
-			    ((pktgen_random() %
-			      (pkt_dev->udp_src_max - pkt_dev->udp_src_min)) +
-			     pkt_dev->udp_src_min);
+			pkt_dev->cur_udp_src = random32() %
+				(pkt_dev->udp_src_max - pkt_dev->udp_src_min)
+				+ pkt_dev->udp_src_min;
 
 		else {
 			pkt_dev->cur_udp_src++;
@@ -2188,10 +2178,9 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 
 	if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) {
 		if (pkt_dev->flags & F_UDPDST_RND) {
-			pkt_dev->cur_udp_dst =
-			    ((pktgen_random() %
-			      (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min)) +
-			     pkt_dev->udp_dst_min);
+			pkt_dev->cur_udp_dst = random32() %
+				(pkt_dev->udp_dst_max - pkt_dev->udp_dst_min)
+				+ pkt_dev->udp_dst_min;
 		} else {
 			pkt_dev->cur_udp_dst++;
 			if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max)
@@ -2206,7 +2195,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 							       saddr_max))) {
 			__u32 t;
 			if (pkt_dev->flags & F_IPSRC_RND)
-				t = ((pktgen_random() % (imx - imn)) + imn);
+				t = random32() % (imx - imn) + imn;
 			else {
 				t = ntohl(pkt_dev->cur_saddr);
 				t++;
@@ -2227,14 +2216,13 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 				__be32 s;
 				if (pkt_dev->flags & F_IPDST_RND) {
 
-					t = pktgen_random() % (imx - imn) + imn;
+					t = random32() % (imx - imn) + imn;
 					s = htonl(t);
 
 					while (LOOPBACK(s) || MULTICAST(s)
 					       || BADCLASS(s) || ZERONET(s)
 					       || LOCAL_MCAST(s)) {
-						t = (pktgen_random() %
-						      (imx - imn)) + imn;
+						t = random32() % (imx - imn) + imn;
 						s = htonl(t);
 					}
 					pkt_dev->cur_daddr = s;
@@ -2266,7 +2254,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 
 			for (i = 0; i < 4; i++) {
 				pkt_dev->cur_in6_daddr.s6_addr32[i] =
-				    (((__force __be32)pktgen_random() |
+				    (((__force __be32)random32() |
 				      pkt_dev->min_in6_daddr.s6_addr32[i]) &
 				     pkt_dev->max_in6_daddr.s6_addr32[i]);
 			}
@@ -2276,9 +2264,9 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 	if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) {
 		__u32 t;
 		if (pkt_dev->flags & F_TXSIZE_RND) {
-			t = ((pktgen_random() %
-			      (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size))
-			     + pkt_dev->min_pkt_size);
+			t = random32() %
+				(pkt_dev->max_pkt_size - pkt_dev->min_pkt_size)
+				+ pkt_dev->min_pkt_size;
 		} else {
 			t = pkt_dev->cur_pkt_size + 1;
 			if (t > pkt_dev->max_pkt_size)
@@ -2293,7 +2281,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev)
 {
 	unsigned i;
-	for(i = 0; i < pkt_dev->nr_labels; i++) {
+	for (i = 0; i < pkt_dev->nr_labels; i++) {
 		*mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM;
 	}
 	mpls--;
@@ -2315,7 +2303,7 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 	int datalen, iplen;
 	struct iphdr *iph;
 	struct pktgen_hdr *pgh = NULL;
-	__be16 protocol = __constant_htons(ETH_P_IP);
+	__be16 protocol = htons(ETH_P_IP);
 	__be32 *mpls;
 	__be16 *vlan_tci = NULL;                 /* Encapsulates priority and VLAN ID */
 	__be16 *vlan_encapsulated_proto = NULL;  /* packet type ID field (or len) for VLAN tag */
@@ -2324,10 +2312,10 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 
 
 	if (pkt_dev->nr_labels)
-		protocol = __constant_htons(ETH_P_MPLS_UC);
+		protocol = htons(ETH_P_MPLS_UC);
 
 	if (pkt_dev->vlan_id != 0xffff)
-		protocol = __constant_htons(ETH_P_8021Q);
+		protocol = htons(ETH_P_8021Q);
 
 	/* Update any of the values, used when we're incrementing various
 	 * fields.
@@ -2353,24 +2341,28 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 		mpls_push(mpls, pkt_dev);
 
 	if (pkt_dev->vlan_id != 0xffff) {
-		if(pkt_dev->svlan_id != 0xffff) {
+		if (pkt_dev->svlan_id != 0xffff) {
 			svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16));
 			*svlan_tci = build_tci(pkt_dev->svlan_id,
 					       pkt_dev->svlan_cfi,
 					       pkt_dev->svlan_p);
 			svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16));
-			*svlan_encapsulated_proto = __constant_htons(ETH_P_8021Q);
+			*svlan_encapsulated_proto = htons(ETH_P_8021Q);
 		}
 		vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16));
 		*vlan_tci = build_tci(pkt_dev->vlan_id,
 				      pkt_dev->vlan_cfi,
 				      pkt_dev->vlan_p);
 		vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16));
-		*vlan_encapsulated_proto = __constant_htons(ETH_P_IP);
+		*vlan_encapsulated_proto = htons(ETH_P_IP);
 	}
 
-	iph = (struct iphdr *)skb_put(skb, sizeof(struct iphdr));
-	udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
+	skb->network_header = skb->tail;
+	skb->transport_header = skb->network_header + sizeof(struct iphdr);
+	skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr));
+
+	iph = ip_hdr(skb);
+	udph = udp_hdr(skb);
 
 	memcpy(eth, pkt_dev->hh, 12);
 	*(__be16 *) & eth[12] = protocol;
@@ -2399,12 +2391,11 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 	iph->check = 0;
 	iph->check = ip_fast_csum((void *)iph, iph->ihl);
 	skb->protocol = protocol;
-	skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32) -
-		VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev);
+	skb->mac_header = (skb->network_header - ETH_HLEN -
+			   pkt_dev->nr_labels * sizeof(u32) -
+			   VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
 	skb->dev = odev;
 	skb->pkt_type = PACKET_HOST;
-	skb->nh.iph = iph;
-	skb->h.uh = udph;
 
 	if (pkt_dev->nfrags <= 0)
 		pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
@@ -2653,7 +2644,7 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 	int datalen;
 	struct ipv6hdr *iph;
 	struct pktgen_hdr *pgh = NULL;
-	__be16 protocol = __constant_htons(ETH_P_IPV6);
+	__be16 protocol = htons(ETH_P_IPV6);
 	__be32 *mpls;
 	__be16 *vlan_tci = NULL;                 /* Encapsulates priority and VLAN ID */
 	__be16 *vlan_encapsulated_proto = NULL;  /* packet type ID field (or len) for VLAN tag */
@@ -2661,10 +2652,10 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 	__be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */
 
 	if (pkt_dev->nr_labels)
-		protocol = __constant_htons(ETH_P_MPLS_UC);
+		protocol = htons(ETH_P_MPLS_UC);
 
 	if (pkt_dev->vlan_id != 0xffff)
-		protocol = __constant_htons(ETH_P_8021Q);
+		protocol = htons(ETH_P_8021Q);
 
 	/* Update any of the values, used when we're incrementing various
 	 * fields.
@@ -2689,24 +2680,28 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 		mpls_push(mpls, pkt_dev);
 
 	if (pkt_dev->vlan_id != 0xffff) {
-		if(pkt_dev->svlan_id != 0xffff) {
+		if (pkt_dev->svlan_id != 0xffff) {
 			svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16));
 			*svlan_tci = build_tci(pkt_dev->svlan_id,
 					       pkt_dev->svlan_cfi,
 					       pkt_dev->svlan_p);
 			svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16));
-			*svlan_encapsulated_proto = __constant_htons(ETH_P_8021Q);
+			*svlan_encapsulated_proto = htons(ETH_P_8021Q);
 		}
 		vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16));
 		*vlan_tci = build_tci(pkt_dev->vlan_id,
 				      pkt_dev->vlan_cfi,
 				      pkt_dev->vlan_p);
 		vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16));
-		*vlan_encapsulated_proto = __constant_htons(ETH_P_IPV6);
+		*vlan_encapsulated_proto = htons(ETH_P_IPV6);
 	}
 
-	iph = (struct ipv6hdr *)skb_put(skb, sizeof(struct ipv6hdr));
-	udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
+	skb->network_header = skb->tail;
+	skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
+	skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr));
+
+	iph = ipv6_hdr(skb);
+	udph = udp_hdr(skb);
 
 	memcpy(eth, pkt_dev->hh, 12);
 	*(__be16 *) & eth[12] = protocol;
@@ -2728,7 +2723,7 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 	udph->len = htons(datalen + sizeof(struct udphdr));
 	udph->check = 0;	/* No checksum */
 
-	*(__be32 *) iph = __constant_htonl(0x60000000);	/* Version + flow */
+	*(__be32 *) iph = htonl(0x60000000);	/* Version + flow */
 
 	if (pkt_dev->traffic_class) {
 		/* Version + traffic class + flow (0) */
@@ -2743,13 +2738,12 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 	ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr);
 	ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr);
 
-	skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32) -
-		VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev);
+	skb->mac_header = (skb->network_header - ETH_HLEN -
+			   pkt_dev->nr_labels * sizeof(u32) -
+			   VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
 	skb->protocol = protocol;
 	skb->dev = odev;
 	skb->pkt_type = PACKET_HOST;
-	skb->nh.ipv6h = iph;
-	skb->h.uh = udph;
 
 	if (pkt_dev->nfrags <= 0)
 		pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
@@ -2847,7 +2841,7 @@ static void pktgen_run(struct pktgen_thread *t)
 	struct pktgen_dev *pkt_dev;
 	int started = 0;
 
-	PG_DEBUG(printk("pktgen: entering pktgen_run. %p\n", t));
+	pr_debug("pktgen: entering pktgen_run. %p\n", t);
 
 	if_lock(t);
 	list_for_each_entry(pkt_dev, &t->if_list, list) {
@@ -2879,7 +2873,7 @@ static void pktgen_stop_all_threads_ifs(void)
 {
 	struct pktgen_thread *t;
 
-	PG_DEBUG(printk("pktgen: entering pktgen_stop_all_threads_ifs.\n"));
+	pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n");
 
 	mutex_lock(&pktgen_thread_lock);
 
@@ -2947,7 +2941,7 @@ static void pktgen_run_all_threads(void)
 {
 	struct pktgen_thread *t;
 
-	PG_DEBUG(printk("pktgen: entering pktgen_run_all_threads.\n"));
+	pr_debug("pktgen: entering pktgen_run_all_threads.\n");
 
 	mutex_lock(&pktgen_thread_lock);
 
@@ -3005,7 +2999,7 @@ static int pktgen_stop_device(struct pktgen_dev *pkt_dev)
 
 	if (!pkt_dev->running) {
 		printk("pktgen: interface: %s is already stopped\n",
-		       pkt_dev->ifname);
+		       pkt_dev->odev->name);
 		return -EINVAL;
 	}
 
@@ -3039,7 +3033,7 @@ static void pktgen_stop(struct pktgen_thread *t)
 {
 	struct pktgen_dev *pkt_dev;
 
-	PG_DEBUG(printk("pktgen: entering pktgen_stop\n"));
+	pr_debug("pktgen: entering pktgen_stop\n");
 
 	if_lock(t);
 
@@ -3063,7 +3057,7 @@ static void pktgen_rem_one_if(struct pktgen_thread *t)
 	struct list_head *q, *n;
 	struct pktgen_dev *cur;
 
-	PG_DEBUG(printk("pktgen: entering pktgen_rem_one_if\n"));
+	pr_debug("pktgen: entering pktgen_rem_one_if\n");
 
 	if_lock(t);
 
@@ -3092,7 +3086,7 @@ static void pktgen_rem_all_ifs(struct pktgen_thread *t)
 
 	/* Remove all devices, free mem */
 
-	PG_DEBUG(printk("pktgen: entering pktgen_rem_all_ifs\n"));
+	pr_debug("pktgen: entering pktgen_rem_all_ifs\n");
 	if_lock(t);
 
 	list_for_each_safe(q, n, &t->if_list) {
@@ -3275,7 +3269,7 @@ static int pktgen_thread_worker(void *arg)
 
 	t->pid = current->pid;
 
-	PG_DEBUG(printk("pktgen: starting pktgen/%d:  pid=%d\n", cpu, current->pid));
+	pr_debug("pktgen: starting pktgen/%d:  pid=%d\n", cpu, current->pid);
 
 	max_before_softirq = t->max_before_softirq;
 
@@ -3333,16 +3327,18 @@ static int pktgen_thread_worker(void *arg)
 			t->control &= ~(T_REMDEV);
 		}
 
+		try_to_freeze();
+
 		set_current_state(TASK_INTERRUPTIBLE);
 	}
 
-	PG_DEBUG(printk("pktgen: %s stopping all device\n", t->tsk->comm));
+	pr_debug("pktgen: %s stopping all device\n", t->tsk->comm);
 	pktgen_stop(t);
 
-	PG_DEBUG(printk("pktgen: %s removing all device\n", t->tsk->comm));
+	pr_debug("pktgen: %s removing all device\n", t->tsk->comm);
 	pktgen_rem_all_ifs(t);
 
-	PG_DEBUG(printk("pktgen: %s removing thread.\n", t->tsk->comm));
+	pr_debug("pktgen: %s removing thread.\n", t->tsk->comm);
 	pktgen_rem_thread(t);
 
 	return 0;
@@ -3355,13 +3351,13 @@ static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t,
 	if_lock(t);
 
 	list_for_each_entry(p, &t->if_list, list)
-		if (strncmp(p->ifname, ifname, IFNAMSIZ) == 0) {
+		if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) {
 			pkt_dev = p;
 			break;
 		}
 
 	if_unlock(t);
-	PG_DEBUG(printk("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev));
+	pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev);
 	return pkt_dev;
 }
 
@@ -3396,7 +3392,7 @@ out:
 static int pktgen_add_device(struct pktgen_thread *t, const char *ifname)
 {
 	struct pktgen_dev *pkt_dev;
-	struct proc_dir_entry *pe;
+	int err;
 
 	/* We don't allow a device to be on several threads */
 
@@ -3438,29 +3434,28 @@ static int pktgen_add_device(struct pktgen_thread *t, const char *ifname)
 	pkt_dev->svlan_cfi = 0;
 	pkt_dev->svlan_id = 0xffff;
 
-	strncpy(pkt_dev->ifname, ifname, IFNAMSIZ);
+	err = pktgen_setup_dev(pkt_dev, ifname);
+	if (err)
+		goto out1;
 
-	if (!pktgen_setup_dev(pkt_dev)) {
-		printk("pktgen: ERROR: pktgen_setup_dev failed.\n");
-		if (pkt_dev->flows)
-			vfree(pkt_dev->flows);
-		kfree(pkt_dev);
-		return -ENODEV;
-	}
-
-	pe = create_proc_entry(ifname, 0600, pg_proc_dir);
-	if (!pe) {
+	pkt_dev->entry = create_proc_entry(ifname, 0600, pg_proc_dir);
+	if (!pkt_dev->entry) {
 		printk("pktgen: cannot create %s/%s procfs entry.\n",
 		       PG_PROC_DIR, ifname);
-		if (pkt_dev->flows)
-			vfree(pkt_dev->flows);
-		kfree(pkt_dev);
-		return -EINVAL;
+		err = -EINVAL;
+		goto out2;
 	}
-	pe->proc_fops = &pktgen_if_fops;
-	pe->data = pkt_dev;
+	pkt_dev->entry->proc_fops = &pktgen_if_fops;
+	pkt_dev->entry->data = pkt_dev;
 
 	return add_dev_to_thread(t, pkt_dev);
+out2:
+	dev_put(pkt_dev->odev);
+out1:
+	if (pkt_dev->flows)
+		vfree(pkt_dev->flows);
+	kfree(pkt_dev);
+	return err;
 }
 
 static int __init pktgen_create_thread(int cpu)
@@ -3530,7 +3525,7 @@ static int pktgen_remove_device(struct pktgen_thread *t,
 				struct pktgen_dev *pkt_dev)
 {
 
-	PG_DEBUG(printk("pktgen: remove_device pkt_dev=%p\n", pkt_dev));
+	pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev);
 
 	if (pkt_dev->running) {
 		printk("pktgen:WARNING: trying to remove a running interface, stopping it now.\n");
@@ -3548,9 +3543,8 @@ static int pktgen_remove_device(struct pktgen_thread *t,
 
 	_rem_dev_from_if_list(t, pkt_dev);
 
-	/* Clean up proc file system */
-
-	remove_proc_entry(pkt_dev->ifname, pg_proc_dir);
+	if (pkt_dev->entry)
+		remove_proc_entry(pkt_dev->entry->name, pg_proc_dir);
 
 	if (pkt_dev->flows)
 		vfree(pkt_dev->flows);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 33ea8eac7fe..cec11110915 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -50,11 +50,13 @@
 #include <net/sock.h>
 #include <net/pkt_sched.h>
 #include <net/fib_rules.h>
-#include <net/netlink.h>
-#ifdef CONFIG_NET_WIRELESS_RTNETLINK
-#include <linux/wireless.h>
-#include <net/iw_handler.h>
-#endif	/* CONFIG_NET_WIRELESS_RTNETLINK */
+#include <net/rtnetlink.h>
+
+struct rtnl_link
+{
+	rtnl_doit_func		doit;
+	rtnl_dumpit_func	dumpit;
+};
 
 static DEFINE_MUTEX(rtnl_mutex);
 static struct sock *rtnl;
@@ -95,7 +97,151 @@ int rtattr_parse(struct rtattr *tb[], int maxattr, struct rtattr *rta, int len)
 	return 0;
 }
 
-struct rtnetlink_link * rtnetlink_links[NPROTO];
+static struct rtnl_link *rtnl_msg_handlers[NPROTO];
+
+static inline int rtm_msgindex(int msgtype)
+{
+	int msgindex = msgtype - RTM_BASE;
+
+	/*
+	 * msgindex < 0 implies someone tried to register a netlink
+	 * control code. msgindex >= RTM_NR_MSGTYPES may indicate that
+	 * the message type has not been added to linux/rtnetlink.h
+	 */
+	BUG_ON(msgindex < 0 || msgindex >= RTM_NR_MSGTYPES);
+
+	return msgindex;
+}
+
+static rtnl_doit_func rtnl_get_doit(int protocol, int msgindex)
+{
+	struct rtnl_link *tab;
+
+	tab = rtnl_msg_handlers[protocol];
+	if (tab == NULL || tab[msgindex].doit == NULL)
+		tab = rtnl_msg_handlers[PF_UNSPEC];
+
+	return tab ? tab[msgindex].doit : NULL;
+}
+
+static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
+{
+	struct rtnl_link *tab;
+
+	tab = rtnl_msg_handlers[protocol];
+	if (tab == NULL || tab[msgindex].dumpit == NULL)
+		tab = rtnl_msg_handlers[PF_UNSPEC];
+
+	return tab ? tab[msgindex].dumpit : NULL;
+}
+
+/**
+ * __rtnl_register - Register a rtnetlink message type
+ * @protocol: Protocol family or PF_UNSPEC
+ * @msgtype: rtnetlink message type
+ * @doit: Function pointer called for each request message
+ * @dumpit: Function pointer called for each dump request (NLM_F_DUMP) message
+ *
+ * Registers the specified function pointers (at least one of them has
+ * to be non-NULL) to be called whenever a request message for the
+ * specified protocol family and message type is received.
+ *
+ * The special protocol family PF_UNSPEC may be used to define fallback
+ * function pointers for the case when no entry for the specific protocol
+ * family exists.
+ *
+ * Returns 0 on success or a negative error code.
+ */
+int __rtnl_register(int protocol, int msgtype,
+		    rtnl_doit_func doit, rtnl_dumpit_func dumpit)
+{
+	struct rtnl_link *tab;
+	int msgindex;
+
+	BUG_ON(protocol < 0 || protocol >= NPROTO);
+	msgindex = rtm_msgindex(msgtype);
+
+	tab = rtnl_msg_handlers[protocol];
+	if (tab == NULL) {
+		tab = kcalloc(RTM_NR_MSGTYPES, sizeof(*tab), GFP_KERNEL);
+		if (tab == NULL)
+			return -ENOBUFS;
+
+		rtnl_msg_handlers[protocol] = tab;
+	}
+
+	if (doit)
+		tab[msgindex].doit = doit;
+
+	if (dumpit)
+		tab[msgindex].dumpit = dumpit;
+
+	return 0;
+}
+
+EXPORT_SYMBOL_GPL(__rtnl_register);
+
+/**
+ * rtnl_register - Register a rtnetlink message type
+ *
+ * Identical to __rtnl_register() but panics on failure. This is useful
+ * as failure of this function is very unlikely, it can only happen due
+ * to lack of memory when allocating the chain to store all message
+ * handlers for a protocol. Meant for use in init functions where lack
+ * of memory implies no sense in continueing.
+ */
+void rtnl_register(int protocol, int msgtype,
+		   rtnl_doit_func doit, rtnl_dumpit_func dumpit)
+{
+	if (__rtnl_register(protocol, msgtype, doit, dumpit) < 0)
+		panic("Unable to register rtnetlink message handler, "
+		      "protocol = %d, message type = %d\n",
+		      protocol, msgtype);
+}
+
+EXPORT_SYMBOL_GPL(rtnl_register);
+
+/**
+ * rtnl_unregister - Unregister a rtnetlink message type
+ * @protocol: Protocol family or PF_UNSPEC
+ * @msgtype: rtnetlink message type
+ *
+ * Returns 0 on success or a negative error code.
+ */
+int rtnl_unregister(int protocol, int msgtype)
+{
+	int msgindex;
+
+	BUG_ON(protocol < 0 || protocol >= NPROTO);
+	msgindex = rtm_msgindex(msgtype);
+
+	if (rtnl_msg_handlers[protocol] == NULL)
+		return -ENOENT;
+
+	rtnl_msg_handlers[protocol][msgindex].doit = NULL;
+	rtnl_msg_handlers[protocol][msgindex].dumpit = NULL;
+
+	return 0;
+}
+
+EXPORT_SYMBOL_GPL(rtnl_unregister);
+
+/**
+ * rtnl_unregister_all - Unregister all rtnetlink message type of a protocol
+ * @protocol : Protocol family or PF_UNSPEC
+ *
+ * Identical to calling rtnl_unregster() for all registered message types
+ * of a certain protocol family.
+ */
+void rtnl_unregister_all(int protocol)
+{
+	BUG_ON(protocol < 0 || protocol >= NPROTO);
+
+	kfree(rtnl_msg_handlers[protocol]);
+	rtnl_msg_handlers[protocol] = NULL;
+}
+
+EXPORT_SYMBOL_GPL(rtnl_unregister_all);
 
 static const int rtm_min[RTM_NR_FAMILIES] =
 {
@@ -249,7 +395,7 @@ static void set_operstate(struct net_device *dev, unsigned char transition)
 		    operstate == IF_OPER_UNKNOWN)
 			operstate = IF_OPER_DORMANT;
 		break;
-	};
+	}
 
 	if (dev->operstate != operstate) {
 		write_lock_bh(&dev_base_lock);
@@ -393,7 +539,6 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 	int s_idx = cb->args[0];
 	struct net_device *dev;
 
-	read_lock(&dev_base_lock);
 	for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) {
 		if (idx < s_idx)
 			continue;
@@ -402,7 +547,6 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 				     cb->nlh->nlmsg_seq, 0, NLM_F_MULTI) <= 0)
 			break;
 	}
-	read_unlock(&dev_base_lock);
 	cb->args[0] = idx;
 
 	return skb->len;
@@ -536,17 +680,6 @@ static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 		modified = 1;
 	}
 
-#ifdef CONFIG_NET_WIRELESS_RTNETLINK
-	if (tb[IFLA_WIRELESS]) {
-		/* Call Wireless Extensions.
-		 * Various stuff checked in there... */
-		err = wireless_rtnetlink_set(dev, nla_data(tb[IFLA_WIRELESS]),
-					     nla_len(tb[IFLA_WIRELESS]));
-		if (err < 0)
-			goto errout_dev;
-	}
-#endif	/* CONFIG_NET_WIRELESS_RTNETLINK */
-
 	if (tb[IFLA_BROADCAST]) {
 		nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
 		send_addr_notify = 1;
@@ -610,22 +743,6 @@ static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 	} else
 		return -EINVAL;
 
-
-#ifdef CONFIG_NET_WIRELESS_RTNETLINK
-	if (tb[IFLA_WIRELESS]) {
-		/* Call Wireless Extensions. We need to know the size before
-		 * we can alloc. Various stuff checked in there... */
-		err = wireless_rtnetlink_get(dev, nla_data(tb[IFLA_WIRELESS]),
-					     nla_len(tb[IFLA_WIRELESS]),
-					     &iw_buf, &iw_buf_len);
-		if (err < 0)
-			goto errout;
-
-		/* Payload is at an offset in buffer */
-		iw = iw_buf + IW_EV_POINT_OFF;
-	}
-#endif	/* CONFIG_NET_WIRELESS_RTNETLINK */
-
 	nskb = nlmsg_new(if_nlmsg_size(iw_buf_len), GFP_KERNEL);
 	if (nskb == NULL) {
 		err = -ENOBUFS;
@@ -659,12 +776,12 @@ static int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb)
 		int type = cb->nlh->nlmsg_type-RTM_BASE;
 		if (idx < s_idx || idx == PF_PACKET)
 			continue;
-		if (rtnetlink_links[idx] == NULL ||
-		    rtnetlink_links[idx][type].dumpit == NULL)
+		if (rtnl_msg_handlers[idx] == NULL ||
+		    rtnl_msg_handlers[idx][type].dumpit == NULL)
 			continue;
 		if (idx > s_idx)
 			memset(&cb->args[0], 0, sizeof(cb->args));
-		if (rtnetlink_links[idx][type].dumpit(skb, cb))
+		if (rtnl_msg_handlers[idx][type].dumpit(skb, cb))
 			break;
 	}
 	cb->family = idx;
@@ -700,30 +817,18 @@ static int rtattr_max;
 
 /* Process one rtnetlink message. */
 
-static __inline__ int
-rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
+static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 {
-	struct rtnetlink_link *link;
-	struct rtnetlink_link *link_tab;
+	rtnl_doit_func doit;
 	int sz_idx, kind;
 	int min_len;
 	int family;
 	int type;
 	int err;
 
-	/* Only requests are handled by kernel now */
-	if (!(nlh->nlmsg_flags&NLM_F_REQUEST))
-		return 0;
-
 	type = nlh->nlmsg_type;
-
-	/* A control message: ignore them */
-	if (type < RTM_BASE)
-		return 0;
-
-	/* Unknown message: reply with EINVAL */
 	if (type > RTM_MAX)
-		goto err_inval;
+		return -EOPNOTSUPP;
 
 	type -= RTM_BASE;
 
@@ -732,45 +837,33 @@ rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
 		return 0;
 
 	family = ((struct rtgenmsg*)NLMSG_DATA(nlh))->rtgen_family;
-	if (family >= NPROTO) {
-		*errp = -EAFNOSUPPORT;
-		return -1;
-	}
-
-	link_tab = rtnetlink_links[family];
-	if (link_tab == NULL)
-		link_tab = rtnetlink_links[PF_UNSPEC];
-	link = &link_tab[type];
+	if (family >= NPROTO)
+		return -EAFNOSUPPORT;
 
 	sz_idx = type>>2;
 	kind = type&3;
 
-	if (kind != 2 && security_netlink_recv(skb, CAP_NET_ADMIN)) {
-		*errp = -EPERM;
-		return -1;
-	}
+	if (kind != 2 && security_netlink_recv(skb, CAP_NET_ADMIN))
+		return -EPERM;
 
 	if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
-		if (link->dumpit == NULL)
-			link = &(rtnetlink_links[PF_UNSPEC][type]);
-
-		if (link->dumpit == NULL)
-			goto err_inval;
+		rtnl_dumpit_func dumpit;
 
-		if ((*errp = netlink_dump_start(rtnl, skb, nlh,
-						link->dumpit, NULL)) != 0) {
-			return -1;
-		}
+		dumpit = rtnl_get_dumpit(family, type);
+		if (dumpit == NULL)
+			return -EOPNOTSUPP;
 
-		netlink_queue_skip(nlh, skb);
-		return -1;
+		__rtnl_unlock();
+		err = netlink_dump_start(rtnl, skb, nlh, dumpit, NULL);
+		rtnl_lock();
+		return err;
 	}
 
 	memset(rta_buf, 0, (rtattr_max * sizeof(struct rtattr *)));
 
 	min_len = rtm_min[sz_idx];
 	if (nlh->nlmsg_len < min_len)
-		goto err_inval;
+		return -EINVAL;
 
 	if (nlh->nlmsg_len > min_len) {
 		int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
@@ -780,25 +873,18 @@ rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
 			unsigned flavor = attr->rta_type;
 			if (flavor) {
 				if (flavor > rta_max[sz_idx])
-					goto err_inval;
+					return -EINVAL;
 				rta_buf[flavor-1] = attr;
 			}
 			attr = RTA_NEXT(attr, attrlen);
 		}
 	}
 
-	if (link->doit == NULL)
-		link = &(rtnetlink_links[PF_UNSPEC][type]);
-	if (link->doit == NULL)
-		goto err_inval;
-	err = link->doit(skb, nlh, (void *)&rta_buf[0]);
+	doit = rtnl_get_doit(family, type);
+	if (doit == NULL)
+		return -EOPNOTSUPP;
 
-	*errp = err;
-	return err;
-
-err_inval:
-	*errp = -EINVAL;
-	return -1;
+	return doit(skb, nlh, (void *)&rta_buf[0]);
 }
 
 static void rtnetlink_rcv(struct sock *sk, int len)
@@ -814,25 +900,6 @@ static void rtnetlink_rcv(struct sock *sk, int len)
 	} while (qlen);
 }
 
-static struct rtnetlink_link link_rtnetlink_table[RTM_NR_MSGTYPES] =
-{
-	[RTM_GETLINK     - RTM_BASE] = { .doit   = rtnl_getlink,
-					 .dumpit = rtnl_dump_ifinfo	 },
-	[RTM_SETLINK     - RTM_BASE] = { .doit   = rtnl_setlink		 },
-	[RTM_GETADDR     - RTM_BASE] = { .dumpit = rtnl_dump_all	 },
-	[RTM_GETROUTE    - RTM_BASE] = { .dumpit = rtnl_dump_all	 },
-	[RTM_NEWNEIGH    - RTM_BASE] = { .doit   = neigh_add		 },
-	[RTM_DELNEIGH    - RTM_BASE] = { .doit   = neigh_delete		 },
-	[RTM_GETNEIGH    - RTM_BASE] = { .dumpit = neigh_dump_info	 },
-#ifdef CONFIG_FIB_RULES
-	[RTM_NEWRULE     - RTM_BASE] = { .doit   = fib_nl_newrule	 },
-	[RTM_DELRULE     - RTM_BASE] = { .doit   = fib_nl_delrule	 },
-#endif
-	[RTM_GETRULE     - RTM_BASE] = { .dumpit = rtnl_dump_all	 },
-	[RTM_GETNEIGHTBL - RTM_BASE] = { .dumpit = neightbl_dump_info	 },
-	[RTM_SETNEIGHTBL - RTM_BASE] = { .doit   = neightbl_set		 },
-};
-
 static int rtnetlink_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
 	struct net_device *dev = ptr;
@@ -874,19 +941,22 @@ void __init rtnetlink_init(void)
 		panic("rtnetlink_init: cannot allocate rta_buf\n");
 
 	rtnl = netlink_kernel_create(NETLINK_ROUTE, RTNLGRP_MAX, rtnetlink_rcv,
-				     THIS_MODULE);
+				     &rtnl_mutex, THIS_MODULE);
 	if (rtnl == NULL)
 		panic("rtnetlink_init: cannot initialize rtnetlink\n");
 	netlink_set_nonroot(NETLINK_ROUTE, NL_NONROOT_RECV);
 	register_netdevice_notifier(&rtnetlink_dev_notifier);
-	rtnetlink_links[PF_UNSPEC] = link_rtnetlink_table;
-	rtnetlink_links[PF_PACKET] = link_rtnetlink_table;
+
+	rtnl_register(PF_UNSPEC, RTM_GETLINK, rtnl_getlink, rtnl_dump_ifinfo);
+	rtnl_register(PF_UNSPEC, RTM_SETLINK, rtnl_setlink, NULL);
+
+	rtnl_register(PF_UNSPEC, RTM_GETADDR, NULL, rtnl_dump_all);
+	rtnl_register(PF_UNSPEC, RTM_GETROUTE, NULL, rtnl_dump_all);
 }
 
 EXPORT_SYMBOL(__rta_fill);
 EXPORT_SYMBOL(rtattr_strlcpy);
 EXPORT_SYMBOL(rtattr_parse);
-EXPORT_SYMBOL(rtnetlink_links);
 EXPORT_SYMBOL(rtnetlink_put_metrics);
 EXPORT_SYMBOL(rtnl_lock);
 EXPORT_SYMBOL(rtnl_trylock);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 87573ae35b0..142257307fa 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -55,6 +55,7 @@
 #include <linux/cache.h>
 #include <linux/rtnetlink.h>
 #include <linux/init.h>
+#include <linux/scatterlist.h>
 
 #include <net/protocol.h>
 #include <net/dst.h>
@@ -87,8 +88,9 @@ static struct kmem_cache *skbuff_fclone_cache __read_mostly;
 void skb_over_panic(struct sk_buff *skb, int sz, void *here)
 {
 	printk(KERN_EMERG "skb_over_panic: text:%p len:%d put:%d head:%p "
-			  "data:%p tail:%p end:%p dev:%s\n",
-	       here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
+			  "data:%p tail:%#lx end:%#lx dev:%s\n",
+	       here, skb->len, sz, skb->head, skb->data,
+	       (unsigned long)skb->tail, (unsigned long)skb->end,
 	       skb->dev ? skb->dev->name : "<NULL>");
 	BUG();
 }
@@ -105,8 +107,9 @@ void skb_over_panic(struct sk_buff *skb, int sz, void *here)
 void skb_under_panic(struct sk_buff *skb, int sz, void *here)
 {
 	printk(KERN_EMERG "skb_under_panic: text:%p len:%d put:%d head:%p "
-			  "data:%p tail:%p end:%p dev:%s\n",
-	       here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
+			  "data:%p tail:%#lx end:%#lx dev:%s\n",
+	       here, skb->len, sz, skb->head, skb->data,
+	       (unsigned long)skb->tail, (unsigned long)skb->end,
 	       skb->dev ? skb->dev->name : "<NULL>");
 	BUG();
 }
@@ -155,20 +158,22 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 	if (!skb)
 		goto out;
 
-	/* Get the DATA. Size must match skb_add_mtu(). */
 	size = SKB_DATA_ALIGN(size);
 	data = kmalloc_node_track_caller(size + sizeof(struct skb_shared_info),
 			gfp_mask, node);
 	if (!data)
 		goto nodata;
 
-	memset(skb, 0, offsetof(struct sk_buff, truesize));
+	/*
+	 * See comment in sk_buff definition, just before the 'tail' member
+	 */
+	memset(skb, 0, offsetof(struct sk_buff, tail));
 	skb->truesize = size + sizeof(struct sk_buff);
 	atomic_set(&skb->users, 1);
 	skb->head = data;
 	skb->data = data;
-	skb->tail = data;
-	skb->end  = data + size;
+	skb_reset_tail_pointer(skb);
+	skb->end = skb->tail + size;
 	/* make sure we initialize shinfo sequentially */
 	shinfo = skb_shinfo(skb);
 	atomic_set(&shinfo->dataref, 1);
@@ -197,61 +202,6 @@ nodata:
 }
 
 /**
- *	alloc_skb_from_cache	-	allocate a network buffer
- *	@cp: kmem_cache from which to allocate the data area
- *           (object size must be big enough for @size bytes + skb overheads)
- *	@size: size to allocate
- *	@gfp_mask: allocation mask
- *
- *	Allocate a new &sk_buff. The returned buffer has no headroom and
- *	tail room of size bytes. The object has a reference count of one.
- *	The return is the buffer. On a failure the return is %NULL.
- *
- *	Buffers may only be allocated from interrupts using a @gfp_mask of
- *	%GFP_ATOMIC.
- */
-struct sk_buff *alloc_skb_from_cache(struct kmem_cache *cp,
-				     unsigned int size,
-				     gfp_t gfp_mask)
-{
-	struct sk_buff *skb;
-	u8 *data;
-
-	/* Get the HEAD */
-	skb = kmem_cache_alloc(skbuff_head_cache,
-			       gfp_mask & ~__GFP_DMA);
-	if (!skb)
-		goto out;
-
-	/* Get the DATA. */
-	size = SKB_DATA_ALIGN(size);
-	data = kmem_cache_alloc(cp, gfp_mask);
-	if (!data)
-		goto nodata;
-
-	memset(skb, 0, offsetof(struct sk_buff, truesize));
-	skb->truesize = size + sizeof(struct sk_buff);
-	atomic_set(&skb->users, 1);
-	skb->head = data;
-	skb->data = data;
-	skb->tail = data;
-	skb->end  = data + size;
-
-	atomic_set(&(skb_shinfo(skb)->dataref), 1);
-	skb_shinfo(skb)->nr_frags  = 0;
-	skb_shinfo(skb)->gso_size = 0;
-	skb_shinfo(skb)->gso_segs = 0;
-	skb_shinfo(skb)->gso_type = 0;
-	skb_shinfo(skb)->frag_list = NULL;
-out:
-	return skb;
-nodata:
-	kmem_cache_free(skbuff_head_cache, skb);
-	skb = NULL;
-	goto out;
-}
-
-/**
  *	__netdev_alloc_skb - allocate an skbuff for rx on a specific device
  *	@dev: network device to receive on
  *	@length: length to allocate
@@ -354,7 +304,7 @@ void kfree_skbmem(struct sk_buff *skb)
 		if (atomic_dec_and_test(fclone_ref))
 			kmem_cache_free(skbuff_fclone_cache, other);
 		break;
-	};
+	}
 }
 
 /**
@@ -376,15 +326,13 @@ void __kfree_skb(struct sk_buff *skb)
 		WARN_ON(in_irq());
 		skb->destructor(skb);
 	}
-#ifdef CONFIG_NETFILTER
-	nf_conntrack_put(skb->nfct);
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+	nf_conntrack_put(skb->nfct);
 	nf_conntrack_put_reasm(skb->nfct_reasm);
 #endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	nf_bridge_put(skb->nf_bridge);
 #endif
-#endif
 /* XXX: IS this still necessary? - JHS */
 #ifdef CONFIG_NET_SCHED
 	skb->tc_index = 0;
@@ -451,9 +399,9 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
 	n->sk = NULL;
 	C(tstamp);
 	C(dev);
-	C(h);
-	C(nh);
-	C(mac);
+	C(transport_header);
+	C(network_header);
+	C(mac_header);
 	C(dst);
 	dst_clone(skb->dst);
 	C(sp);
@@ -477,19 +425,7 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
 	C(protocol);
 	n->destructor = NULL;
 	C(mark);
-#ifdef CONFIG_NETFILTER
-	C(nfct);
-	nf_conntrack_get(skb->nfct);
-	C(nfctinfo);
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
-	C(nfct_reasm);
-	nf_conntrack_get_reasm(skb->nfct_reasm);
-#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
-	C(nf_bridge);
-	nf_bridge_get(skb->nf_bridge);
-#endif
-#endif /*CONFIG_NETFILTER*/
+	__nf_copy(n, skb);
 #ifdef CONFIG_NET_SCHED
 	C(tc_index);
 #ifdef CONFIG_NET_CLS_ACT
@@ -515,11 +451,12 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
 
 static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 {
+#ifndef NET_SKBUFF_DATA_USES_OFFSET
 	/*
 	 *	Shift between the two data areas in bytes
 	 */
 	unsigned long offset = new->data - old->data;
-
+#endif
 	new->sk		= NULL;
 	new->dev	= old->dev;
 	new->priority	= old->priority;
@@ -528,9 +465,15 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 #ifdef CONFIG_INET
 	new->sp		= secpath_get(old->sp);
 #endif
-	new->h.raw	= old->h.raw + offset;
-	new->nh.raw	= old->nh.raw + offset;
-	new->mac.raw	= old->mac.raw + offset;
+	new->transport_header = old->transport_header;
+	new->network_header   = old->network_header;
+	new->mac_header	      = old->mac_header;
+#ifndef NET_SKBUFF_DATA_USES_OFFSET
+	/* {transport,network,mac}_header are relative to skb->head */
+	new->transport_header += offset;
+	new->network_header   += offset;
+	new->mac_header	      += offset;
+#endif
 	memcpy(new->cb, old->cb, sizeof(old->cb));
 	new->local_df	= old->local_df;
 	new->fclone	= SKB_FCLONE_UNAVAILABLE;
@@ -538,22 +481,10 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->tstamp	= old->tstamp;
 	new->destructor = NULL;
 	new->mark	= old->mark;
-#ifdef CONFIG_NETFILTER
-	new->nfct	= old->nfct;
-	nf_conntrack_get(old->nfct);
-	new->nfctinfo	= old->nfctinfo;
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
-	new->nfct_reasm = old->nfct_reasm;
-	nf_conntrack_get_reasm(old->nfct_reasm);
-#endif
+	__nf_copy(new, old);
 #if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
 	new->ipvs_property = old->ipvs_property;
 #endif
-#ifdef CONFIG_BRIDGE_NETFILTER
-	new->nf_bridge	= old->nf_bridge;
-	nf_bridge_get(old->nf_bridge);
-#endif
-#endif
 #ifdef CONFIG_NET_SCHED
 #ifdef CONFIG_NET_CLS_ACT
 	new->tc_verd = old->tc_verd;
@@ -590,8 +521,12 @@ struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask)
 	/*
 	 *	Allocate the copy buffer
 	 */
-	struct sk_buff *n = alloc_skb(skb->end - skb->head + skb->data_len,
-				      gfp_mask);
+	struct sk_buff *n;
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+	n = alloc_skb(skb->end + skb->data_len, gfp_mask);
+#else
+	n = alloc_skb(skb->end - skb->head + skb->data_len, gfp_mask);
+#endif
 	if (!n)
 		return NULL;
 
@@ -628,8 +563,12 @@ struct sk_buff *pskb_copy(struct sk_buff *skb, gfp_t gfp_mask)
 	/*
 	 *	Allocate the copy buffer
 	 */
-	struct sk_buff *n = alloc_skb(skb->end - skb->head, gfp_mask);
-
+	struct sk_buff *n;
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+	n = alloc_skb(skb->end, gfp_mask);
+#else
+	n = alloc_skb(skb->end - skb->head, gfp_mask);
+#endif
 	if (!n)
 		goto out;
 
@@ -638,7 +577,7 @@ struct sk_buff *pskb_copy(struct sk_buff *skb, gfp_t gfp_mask)
 	/* Set the tail pointer and length */
 	skb_put(n, skb_headlen(skb));
 	/* Copy the bytes */
-	memcpy(n->data, skb->data, n->len);
+	skb_copy_from_linear_data(skb, n->data, n->len);
 	n->csum	     = skb->csum;
 	n->ip_summed = skb->ip_summed;
 
@@ -687,7 +626,11 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 {
 	int i;
 	u8 *data;
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+	int size = nhead + skb->end + ntail;
+#else
 	int size = nhead + (skb->end - skb->head) + ntail;
+#endif
 	long off;
 
 	if (skb_shared(skb))
@@ -701,8 +644,14 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 
 	/* Copy only real data... and, alas, header. This should be
 	 * optimized for the cases when header is void. */
-	memcpy(data + nhead, skb->head, skb->tail - skb->head);
-	memcpy(data + size, skb->end, sizeof(struct skb_shared_info));
+	memcpy(data + nhead, skb->head,
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+		skb->tail);
+#else
+		skb->tail - skb->head);
+#endif
+	memcpy(data + size, skb_end_pointer(skb),
+	       sizeof(struct skb_shared_info));
 
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
 		get_page(skb_shinfo(skb)->frags[i].page);
@@ -715,12 +664,18 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 	off = (data + nhead) - skb->head;
 
 	skb->head     = data;
-	skb->end      = data + size;
 	skb->data    += off;
-	skb->tail    += off;
-	skb->mac.raw += off;
-	skb->h.raw   += off;
-	skb->nh.raw  += off;
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+	skb->end      = size;
+	off           = nhead;
+#else
+	skb->end      = skb->head + size;
+#endif
+	/* {transport,network,mac}_header and tail are relative to skb->head */
+	skb->tail	      += off;
+	skb->transport_header += off;
+	skb->network_header   += off;
+	skb->mac_header	      += off;
 	skb->cloned   = 0;
 	skb->nohdr    = 0;
 	atomic_set(&skb_shinfo(skb)->dataref, 1);
@@ -781,7 +736,9 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 	 */
 	struct sk_buff *n = alloc_skb(newheadroom + skb->len + newtailroom,
 				      gfp_mask);
+	int oldheadroom = skb_headroom(skb);
 	int head_copy_len, head_copy_off;
+	int off = 0;
 
 	if (!n)
 		return NULL;
@@ -791,7 +748,7 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 	/* Set the tail pointer and length */
 	skb_put(n, skb->len);
 
-	head_copy_len = skb_headroom(skb);
+	head_copy_len = oldheadroom;
 	head_copy_off = 0;
 	if (newheadroom <= head_copy_len)
 		head_copy_len = newheadroom;
@@ -805,6 +762,13 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 
 	copy_skb_header(n, skb);
 
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+	off                  = newheadroom - oldheadroom;
+#endif
+	n->transport_header += off;
+	n->network_header   += off;
+	n->mac_header	    += off;
+
 	return n;
 }
 
@@ -932,7 +896,7 @@ done:
 	} else {
 		skb->len       = len;
 		skb->data_len  = 0;
-		skb->tail      = skb->data + len;
+		skb_set_tail_pointer(skb, len);
 	}
 
 	return 0;
@@ -977,7 +941,7 @@ unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta)
 			return NULL;
 	}
 
-	if (skb_copy_bits(skb, skb_headlen(skb), skb->tail, delta))
+	if (skb_copy_bits(skb, skb_headlen(skb), skb_tail_pointer(skb), delta))
 		BUG();
 
 	/* Optimization: no fragments, no reasons to preestimate
@@ -1073,7 +1037,7 @@ pull_pages:
 	skb->tail     += delta;
 	skb->data_len -= delta;
 
-	return skb->tail;
+	return skb_tail_pointer(skb);
 }
 
 /* Copy some data bits from skb to kernel buffer. */
@@ -1090,7 +1054,7 @@ int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len)
 	if ((copy = start - offset) > 0) {
 		if (copy > len)
 			copy = len;
-		memcpy(to, skb->data + offset, copy);
+		skb_copy_from_linear_data_offset(skb, offset, to, copy);
 		if ((len -= copy) == 0)
 			return 0;
 		offset += copy;
@@ -1165,7 +1129,7 @@ fault:
  *	traversing fragment lists and such.
  */
 
-int skb_store_bits(const struct sk_buff *skb, int offset, void *from, int len)
+int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len)
 {
 	int i, copy;
 	int start = skb_headlen(skb);
@@ -1176,7 +1140,7 @@ int skb_store_bits(const struct sk_buff *skb, int offset, void *from, int len)
 	if ((copy = start - offset) > 0) {
 		if (copy > len)
 			copy = len;
-		memcpy(skb->data + offset, from, copy);
+		skb_copy_to_linear_data_offset(skb, offset, from, copy);
 		if ((len -= copy) == 0)
 			return 0;
 		offset += copy;
@@ -1403,13 +1367,13 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to)
 	long csstart;
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL)
-		csstart = skb->h.raw - skb->data;
+		csstart = skb->csum_start - skb_headroom(skb);
 	else
 		csstart = skb_headlen(skb);
 
 	BUG_ON(csstart > skb_headlen(skb));
 
-	memcpy(to, skb->data, csstart);
+	skb_copy_from_linear_data(skb, to, csstart);
 
 	csum = 0;
 	if (csstart != skb->len)
@@ -1577,27 +1541,14 @@ void skb_insert(struct sk_buff *old, struct sk_buff *newsk, struct sk_buff_head
 	spin_unlock_irqrestore(&list->lock, flags);
 }
 
-#if 0
-/*
- * 	Tune the memory allocator for a new MTU size.
- */
-void skb_add_mtu(int mtu)
-{
-	/* Must match allocation in alloc_skb */
-	mtu = SKB_DATA_ALIGN(mtu) + sizeof(struct skb_shared_info);
-
-	kmem_add_cache_size(mtu);
-}
-#endif
-
 static inline void skb_split_inside_header(struct sk_buff *skb,
 					   struct sk_buff* skb1,
 					   const u32 len, const int pos)
 {
 	int i;
 
-	memcpy(skb_put(skb1, pos - len), skb->data + len, pos - len);
-
+	skb_copy_from_linear_data_offset(skb, len, skb_put(skb1, pos - len),
+					 pos - len);
 	/* And move data appendix as is. */
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
 		skb_shinfo(skb1)->frags[i] = skb_shinfo(skb)->frags[i];
@@ -1608,7 +1559,7 @@ static inline void skb_split_inside_header(struct sk_buff *skb,
 	skb1->len		   += skb1->data_len;
 	skb->data_len		   = 0;
 	skb->len		   = len;
-	skb->tail		   = skb->data + len;
+	skb_set_tail_pointer(skb, len);
 }
 
 static inline void skb_split_no_header(struct sk_buff *skb,
@@ -1933,7 +1884,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
 	struct sk_buff *segs = NULL;
 	struct sk_buff *tail = NULL;
 	unsigned int mss = skb_shinfo(skb)->gso_size;
-	unsigned int doffset = skb->data - skb->mac.raw;
+	unsigned int doffset = skb->data - skb_mac_header(skb);
 	unsigned int offset = doffset;
 	unsigned int headroom;
 	unsigned int len;
@@ -1983,11 +1934,12 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
 		nskb->mac_len = skb->mac_len;
 
 		skb_reserve(nskb, headroom);
-		nskb->mac.raw = nskb->data;
-		nskb->nh.raw = nskb->data + skb->mac_len;
-		nskb->h.raw = nskb->nh.raw + (skb->h.raw - skb->nh.raw);
-		memcpy(skb_put(nskb, doffset), skb->data, doffset);
-
+		skb_reset_mac_header(nskb);
+		skb_set_network_header(nskb, skb->mac_len);
+		nskb->transport_header = (nskb->network_header +
+					  skb_network_header_len(skb));
+		skb_copy_from_linear_data(skb, skb_put(nskb, doffset),
+					  doffset);
 		if (!sg) {
 			nskb->csum = skb_copy_and_csum_bits(skb, offset,
 							    skb_put(nskb, len),
@@ -2000,7 +1952,8 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
 
 		nskb->ip_summed = CHECKSUM_PARTIAL;
 		nskb->csum = skb->csum;
-		memcpy(skb_put(nskb, hsize), skb->data + offset, hsize);
+		skb_copy_from_linear_data_offset(skb, offset,
+						 skb_put(nskb, hsize), hsize);
 
 		while (pos < offset + len) {
 			BUG_ON(i >= nfrags);
@@ -2060,6 +2013,190 @@ void __init skb_init(void)
 						NULL, NULL);
 }
 
+/**
+ *	skb_to_sgvec - Fill a scatter-gather list from a socket buffer
+ *	@skb: Socket buffer containing the buffers to be mapped
+ *	@sg: The scatter-gather list to map into
+ *	@offset: The offset into the buffer's contents to start mapping
+ *	@len: Length of buffer space to be mapped
+ *
+ *	Fill the specified scatter-gather list with mappings/pointers into a
+ *	region of the buffer space attached to a socket buffer.
+ */
+int
+skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
+{
+	int start = skb_headlen(skb);
+	int i, copy = start - offset;
+	int elt = 0;
+
+	if (copy > 0) {
+		if (copy > len)
+			copy = len;
+		sg[elt].page = virt_to_page(skb->data + offset);
+		sg[elt].offset = (unsigned long)(skb->data + offset) % PAGE_SIZE;
+		sg[elt].length = copy;
+		elt++;
+		if ((len -= copy) == 0)
+			return elt;
+		offset += copy;
+	}
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		int end;
+
+		BUG_TRAP(start <= offset + len);
+
+		end = start + skb_shinfo(skb)->frags[i].size;
+		if ((copy = end - offset) > 0) {
+			skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+			if (copy > len)
+				copy = len;
+			sg[elt].page = frag->page;
+			sg[elt].offset = frag->page_offset+offset-start;
+			sg[elt].length = copy;
+			elt++;
+			if (!(len -= copy))
+				return elt;
+			offset += copy;
+		}
+		start = end;
+	}
+
+	if (skb_shinfo(skb)->frag_list) {
+		struct sk_buff *list = skb_shinfo(skb)->frag_list;
+
+		for (; list; list = list->next) {
+			int end;
+
+			BUG_TRAP(start <= offset + len);
+
+			end = start + list->len;
+			if ((copy = end - offset) > 0) {
+				if (copy > len)
+					copy = len;
+				elt += skb_to_sgvec(list, sg+elt, offset - start, copy);
+				if ((len -= copy) == 0)
+					return elt;
+				offset += copy;
+			}
+			start = end;
+		}
+	}
+	BUG_ON(len);
+	return elt;
+}
+
+/**
+ *	skb_cow_data - Check that a socket buffer's data buffers are writable
+ *	@skb: The socket buffer to check.
+ *	@tailbits: Amount of trailing space to be added
+ *	@trailer: Returned pointer to the skb where the @tailbits space begins
+ *
+ *	Make sure that the data buffers attached to a socket buffer are
+ *	writable. If they are not, private copies are made of the data buffers
+ *	and the socket buffer is set to use these instead.
+ *
+ *	If @tailbits is given, make sure that there is space to write @tailbits
+ *	bytes of data beyond current end of socket buffer.  @trailer will be
+ *	set to point to the skb in which this space begins.
+ *
+ *	The number of scatterlist elements required to completely map the
+ *	COW'd and extended socket buffer will be returned.
+ */
+int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
+{
+	int copyflag;
+	int elt;
+	struct sk_buff *skb1, **skb_p;
+
+	/* If skb is cloned or its head is paged, reallocate
+	 * head pulling out all the pages (pages are considered not writable
+	 * at the moment even if they are anonymous).
+	 */
+	if ((skb_cloned(skb) || skb_shinfo(skb)->nr_frags) &&
+	    __pskb_pull_tail(skb, skb_pagelen(skb)-skb_headlen(skb)) == NULL)
+		return -ENOMEM;
+
+	/* Easy case. Most of packets will go this way. */
+	if (!skb_shinfo(skb)->frag_list) {
+		/* A little of trouble, not enough of space for trailer.
+		 * This should not happen, when stack is tuned to generate
+		 * good frames. OK, on miss we reallocate and reserve even more
+		 * space, 128 bytes is fair. */
+
+		if (skb_tailroom(skb) < tailbits &&
+		    pskb_expand_head(skb, 0, tailbits-skb_tailroom(skb)+128, GFP_ATOMIC))
+			return -ENOMEM;
+
+		/* Voila! */
+		*trailer = skb;
+		return 1;
+	}
+
+	/* Misery. We are in troubles, going to mincer fragments... */
+
+	elt = 1;
+	skb_p = &skb_shinfo(skb)->frag_list;
+	copyflag = 0;
+
+	while ((skb1 = *skb_p) != NULL) {
+		int ntail = 0;
+
+		/* The fragment is partially pulled by someone,
+		 * this can happen on input. Copy it and everything
+		 * after it. */
+
+		if (skb_shared(skb1))
+			copyflag = 1;
+
+		/* If the skb is the last, worry about trailer. */
+
+		if (skb1->next == NULL && tailbits) {
+			if (skb_shinfo(skb1)->nr_frags ||
+			    skb_shinfo(skb1)->frag_list ||
+			    skb_tailroom(skb1) < tailbits)
+				ntail = tailbits + 128;
+		}
+
+		if (copyflag ||
+		    skb_cloned(skb1) ||
+		    ntail ||
+		    skb_shinfo(skb1)->nr_frags ||
+		    skb_shinfo(skb1)->frag_list) {
+			struct sk_buff *skb2;
+
+			/* Fuck, we are miserable poor guys... */
+			if (ntail == 0)
+				skb2 = skb_copy(skb1, GFP_ATOMIC);
+			else
+				skb2 = skb_copy_expand(skb1,
+						       skb_headroom(skb1),
+						       ntail,
+						       GFP_ATOMIC);
+			if (unlikely(skb2 == NULL))
+				return -ENOMEM;
+
+			if (skb1->sk)
+				skb_set_owner_w(skb2, skb1->sk);
+
+			/* Looking around. Are we still alive?
+			 * OK, link new skb, drop old one */
+
+			skb2->next = skb1->next;
+			*skb_p = skb2;
+			kfree_skb(skb1);
+			skb1 = skb2;
+		}
+		elt++;
+		*trailer = skb1;
+		skb_p = &skb1->next;
+	}
+
+	return elt;
+}
+
 EXPORT_SYMBOL(___pskb_trim);
 EXPORT_SYMBOL(__kfree_skb);
 EXPORT_SYMBOL(kfree_skb);
@@ -2094,3 +2231,6 @@ EXPORT_SYMBOL(skb_seq_read);
 EXPORT_SYMBOL(skb_abort_seq_read);
 EXPORT_SYMBOL(skb_find_text);
 EXPORT_SYMBOL(skb_append_datato_frags);
+
+EXPORT_SYMBOL_GPL(skb_to_sgvec);
+EXPORT_SYMBOL_GPL(skb_cow_data);
diff --git a/net/core/sock.c b/net/core/sock.c
index 27c4f62382b..22183c2ef28 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -154,7 +154,8 @@ static const char *af_family_key_strings[AF_MAX+1] = {
   "sk_lock-21"       , "sk_lock-AF_SNA"      , "sk_lock-AF_IRDA"     ,
   "sk_lock-AF_PPPOX" , "sk_lock-AF_WANPIPE"  , "sk_lock-AF_LLC"      ,
   "sk_lock-27"       , "sk_lock-28"          , "sk_lock-29"          ,
-  "sk_lock-AF_TIPC"  , "sk_lock-AF_BLUETOOTH", "sk_lock-AF_MAX"
+  "sk_lock-AF_TIPC"  , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV"        ,
+  "sk_lock-AF_RXRPC" , "sk_lock-AF_MAX"
 };
 static const char *af_family_slock_key_strings[AF_MAX+1] = {
   "slock-AF_UNSPEC", "slock-AF_UNIX"     , "slock-AF_INET"     ,
@@ -167,7 +168,8 @@ static const char *af_family_slock_key_strings[AF_MAX+1] = {
   "slock-21"       , "slock-AF_SNA"      , "slock-AF_IRDA"     ,
   "slock-AF_PPPOX" , "slock-AF_WANPIPE"  , "slock-AF_LLC"      ,
   "slock-27"       , "slock-28"          , "slock-29"          ,
-  "slock-AF_TIPC"  , "slock-AF_BLUETOOTH", "slock-AF_MAX"
+  "slock-AF_TIPC"  , "slock-AF_BLUETOOTH", "slock-AF_IUCV"     ,
+  "slock-AF_RXRPC" , "slock-AF_MAX"
 };
 #endif
 
@@ -361,8 +363,8 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 	}
 #endif
 
-	if(optlen<sizeof(int))
-		return(-EINVAL);
+	if (optlen < sizeof(int))
+		return -EINVAL;
 
 	if (get_user(val, (int __user *)optval))
 		return -EFAULT;
@@ -371,265 +373,270 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 
 	lock_sock(sk);
 
-	switch(optname)
-	{
-		case SO_DEBUG:
-			if(val && !capable(CAP_NET_ADMIN))
-			{
-				ret = -EACCES;
-			}
-			else if (valbool)
-				sock_set_flag(sk, SOCK_DBG);
-			else
-				sock_reset_flag(sk, SOCK_DBG);
-			break;
-		case SO_REUSEADDR:
-			sk->sk_reuse = valbool;
-			break;
-		case SO_TYPE:
-		case SO_ERROR:
-			ret = -ENOPROTOOPT;
-			break;
-		case SO_DONTROUTE:
-			if (valbool)
-				sock_set_flag(sk, SOCK_LOCALROUTE);
-			else
-				sock_reset_flag(sk, SOCK_LOCALROUTE);
-			break;
-		case SO_BROADCAST:
-			sock_valbool_flag(sk, SOCK_BROADCAST, valbool);
-			break;
-		case SO_SNDBUF:
-			/* Don't error on this BSD doesn't and if you think
-			   about it this is right. Otherwise apps have to
-			   play 'guess the biggest size' games. RCVBUF/SNDBUF
-			   are treated in BSD as hints */
-
-			if (val > sysctl_wmem_max)
-				val = sysctl_wmem_max;
+	switch(optname) {
+	case SO_DEBUG:
+		if (val && !capable(CAP_NET_ADMIN)) {
+			ret = -EACCES;
+		}
+		else if (valbool)
+			sock_set_flag(sk, SOCK_DBG);
+		else
+			sock_reset_flag(sk, SOCK_DBG);
+		break;
+	case SO_REUSEADDR:
+		sk->sk_reuse = valbool;
+		break;
+	case SO_TYPE:
+	case SO_ERROR:
+		ret = -ENOPROTOOPT;
+		break;
+	case SO_DONTROUTE:
+		if (valbool)
+			sock_set_flag(sk, SOCK_LOCALROUTE);
+		else
+			sock_reset_flag(sk, SOCK_LOCALROUTE);
+		break;
+	case SO_BROADCAST:
+		sock_valbool_flag(sk, SOCK_BROADCAST, valbool);
+		break;
+	case SO_SNDBUF:
+		/* Don't error on this BSD doesn't and if you think
+		   about it this is right. Otherwise apps have to
+		   play 'guess the biggest size' games. RCVBUF/SNDBUF
+		   are treated in BSD as hints */
+
+		if (val > sysctl_wmem_max)
+			val = sysctl_wmem_max;
 set_sndbuf:
-			sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
-			if ((val * 2) < SOCK_MIN_SNDBUF)
-				sk->sk_sndbuf = SOCK_MIN_SNDBUF;
-			else
-				sk->sk_sndbuf = val * 2;
+		sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
+		if ((val * 2) < SOCK_MIN_SNDBUF)
+			sk->sk_sndbuf = SOCK_MIN_SNDBUF;
+		else
+			sk->sk_sndbuf = val * 2;
 
-			/*
-			 *	Wake up sending tasks if we
-			 *	upped the value.
-			 */
-			sk->sk_write_space(sk);
-			break;
+		/*
+		 *	Wake up sending tasks if we
+		 *	upped the value.
+		 */
+		sk->sk_write_space(sk);
+		break;
 
-		case SO_SNDBUFFORCE:
-			if (!capable(CAP_NET_ADMIN)) {
-				ret = -EPERM;
-				break;
-			}
-			goto set_sndbuf;
+	case SO_SNDBUFFORCE:
+		if (!capable(CAP_NET_ADMIN)) {
+			ret = -EPERM;
+			break;
+		}
+		goto set_sndbuf;
 
-		case SO_RCVBUF:
-			/* Don't error on this BSD doesn't and if you think
-			   about it this is right. Otherwise apps have to
-			   play 'guess the biggest size' games. RCVBUF/SNDBUF
-			   are treated in BSD as hints */
+	case SO_RCVBUF:
+		/* Don't error on this BSD doesn't and if you think
+		   about it this is right. Otherwise apps have to
+		   play 'guess the biggest size' games. RCVBUF/SNDBUF
+		   are treated in BSD as hints */
 
-			if (val > sysctl_rmem_max)
-				val = sysctl_rmem_max;
+		if (val > sysctl_rmem_max)
+			val = sysctl_rmem_max;
 set_rcvbuf:
-			sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
-			/*
-			 * We double it on the way in to account for
-			 * "struct sk_buff" etc. overhead.   Applications
-			 * assume that the SO_RCVBUF setting they make will
-			 * allow that much actual data to be received on that
-			 * socket.
-			 *
-			 * Applications are unaware that "struct sk_buff" and
-			 * other overheads allocate from the receive buffer
-			 * during socket buffer allocation.
-			 *
-			 * And after considering the possible alternatives,
-			 * returning the value we actually used in getsockopt
-			 * is the most desirable behavior.
-			 */
-			if ((val * 2) < SOCK_MIN_RCVBUF)
-				sk->sk_rcvbuf = SOCK_MIN_RCVBUF;
-			else
-				sk->sk_rcvbuf = val * 2;
+		sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
+		/*
+		 * We double it on the way in to account for
+		 * "struct sk_buff" etc. overhead.   Applications
+		 * assume that the SO_RCVBUF setting they make will
+		 * allow that much actual data to be received on that
+		 * socket.
+		 *
+		 * Applications are unaware that "struct sk_buff" and
+		 * other overheads allocate from the receive buffer
+		 * during socket buffer allocation.
+		 *
+		 * And after considering the possible alternatives,
+		 * returning the value we actually used in getsockopt
+		 * is the most desirable behavior.
+		 */
+		if ((val * 2) < SOCK_MIN_RCVBUF)
+			sk->sk_rcvbuf = SOCK_MIN_RCVBUF;
+		else
+			sk->sk_rcvbuf = val * 2;
+		break;
+
+	case SO_RCVBUFFORCE:
+		if (!capable(CAP_NET_ADMIN)) {
+			ret = -EPERM;
 			break;
+		}
+		goto set_rcvbuf;
 
-		case SO_RCVBUFFORCE:
-			if (!capable(CAP_NET_ADMIN)) {
-				ret = -EPERM;
-				break;
-			}
-			goto set_rcvbuf;
-
-		case SO_KEEPALIVE:
+	case SO_KEEPALIVE:
 #ifdef CONFIG_INET
-			if (sk->sk_protocol == IPPROTO_TCP)
-				tcp_set_keepalive(sk, valbool);
+		if (sk->sk_protocol == IPPROTO_TCP)
+			tcp_set_keepalive(sk, valbool);
 #endif
-			sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool);
-			break;
-
-		case SO_OOBINLINE:
-			sock_valbool_flag(sk, SOCK_URGINLINE, valbool);
+		sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool);
+		break;
+
+	case SO_OOBINLINE:
+		sock_valbool_flag(sk, SOCK_URGINLINE, valbool);
+		break;
+
+	case SO_NO_CHECK:
+		sk->sk_no_check = valbool;
+		break;
+
+	case SO_PRIORITY:
+		if ((val >= 0 && val <= 6) || capable(CAP_NET_ADMIN))
+			sk->sk_priority = val;
+		else
+			ret = -EPERM;
+		break;
+
+	case SO_LINGER:
+		if (optlen < sizeof(ling)) {
+			ret = -EINVAL;	/* 1003.1g */
 			break;
-
-		case SO_NO_CHECK:
-			sk->sk_no_check = valbool;
-			break;
-
-		case SO_PRIORITY:
-			if ((val >= 0 && val <= 6) || capable(CAP_NET_ADMIN))
-				sk->sk_priority = val;
-			else
-				ret = -EPERM;
+		}
+		if (copy_from_user(&ling,optval,sizeof(ling))) {
+			ret = -EFAULT;
 			break;
-
-		case SO_LINGER:
-			if(optlen<sizeof(ling)) {
-				ret = -EINVAL;	/* 1003.1g */
-				break;
-			}
-			if (copy_from_user(&ling,optval,sizeof(ling))) {
-				ret = -EFAULT;
-				break;
-			}
-			if (!ling.l_onoff)
-				sock_reset_flag(sk, SOCK_LINGER);
-			else {
+		}
+		if (!ling.l_onoff)
+			sock_reset_flag(sk, SOCK_LINGER);
+		else {
 #if (BITS_PER_LONG == 32)
-				if ((unsigned int)ling.l_linger >= MAX_SCHEDULE_TIMEOUT/HZ)
-					sk->sk_lingertime = MAX_SCHEDULE_TIMEOUT;
-				else
+			if ((unsigned int)ling.l_linger >= MAX_SCHEDULE_TIMEOUT/HZ)
+				sk->sk_lingertime = MAX_SCHEDULE_TIMEOUT;
+			else
 #endif
-					sk->sk_lingertime = (unsigned int)ling.l_linger * HZ;
-				sock_set_flag(sk, SOCK_LINGER);
-			}
-			break;
-
-		case SO_BSDCOMPAT:
-			sock_warn_obsolete_bsdism("setsockopt");
-			break;
-
-		case SO_PASSCRED:
-			if (valbool)
-				set_bit(SOCK_PASSCRED, &sock->flags);
+				sk->sk_lingertime = (unsigned int)ling.l_linger * HZ;
+			sock_set_flag(sk, SOCK_LINGER);
+		}
+		break;
+
+	case SO_BSDCOMPAT:
+		sock_warn_obsolete_bsdism("setsockopt");
+		break;
+
+	case SO_PASSCRED:
+		if (valbool)
+			set_bit(SOCK_PASSCRED, &sock->flags);
+		else
+			clear_bit(SOCK_PASSCRED, &sock->flags);
+		break;
+
+	case SO_TIMESTAMP:
+	case SO_TIMESTAMPNS:
+		if (valbool)  {
+			if (optname == SO_TIMESTAMP)
+				sock_reset_flag(sk, SOCK_RCVTSTAMPNS);
 			else
-				clear_bit(SOCK_PASSCRED, &sock->flags);
-			break;
+				sock_set_flag(sk, SOCK_RCVTSTAMPNS);
+			sock_set_flag(sk, SOCK_RCVTSTAMP);
+			sock_enable_timestamp(sk);
+		} else {
+			sock_reset_flag(sk, SOCK_RCVTSTAMP);
+			sock_reset_flag(sk, SOCK_RCVTSTAMPNS);
+		}
+		break;
 
-		case SO_TIMESTAMP:
-			if (valbool)  {
-				sock_set_flag(sk, SOCK_RCVTSTAMP);
-				sock_enable_timestamp(sk);
-			} else
-				sock_reset_flag(sk, SOCK_RCVTSTAMP);
-			break;
+	case SO_RCVLOWAT:
+		if (val < 0)
+			val = INT_MAX;
+		sk->sk_rcvlowat = val ? : 1;
+		break;
 
-		case SO_RCVLOWAT:
-			if (val < 0)
-				val = INT_MAX;
-			sk->sk_rcvlowat = val ? : 1;
-			break;
+	case SO_RCVTIMEO:
+		ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen);
+		break;
 
-		case SO_RCVTIMEO:
-			ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen);
-			break;
+	case SO_SNDTIMEO:
+		ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
+		break;
 
-		case SO_SNDTIMEO:
-			ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
+#ifdef CONFIG_NETDEVICES
+	case SO_BINDTODEVICE:
+	{
+		char devname[IFNAMSIZ];
+
+		/* Sorry... */
+		if (!capable(CAP_NET_RAW)) {
+			ret = -EPERM;
 			break;
+		}
 
-#ifdef CONFIG_NETDEVICES
-		case SO_BINDTODEVICE:
-		{
-			char devname[IFNAMSIZ];
+		/* Bind this socket to a particular device like "eth0",
+		 * as specified in the passed interface name. If the
+		 * name is "" or the option length is zero the socket
+		 * is not bound.
+		 */
 
-			/* Sorry... */
-			if (!capable(CAP_NET_RAW)) {
-				ret = -EPERM;
+		if (!valbool) {
+			sk->sk_bound_dev_if = 0;
+		} else {
+			if (optlen > IFNAMSIZ - 1)
+				optlen = IFNAMSIZ - 1;
+			memset(devname, 0, sizeof(devname));
+			if (copy_from_user(devname, optval, optlen)) {
+				ret = -EFAULT;
 				break;
 			}
 
-			/* Bind this socket to a particular device like "eth0",
-			 * as specified in the passed interface name. If the
-			 * name is "" or the option length is zero the socket
-			 * is not bound.
-			 */
+			/* Remove any cached route for this socket. */
+			sk_dst_reset(sk);
 
-			if (!valbool) {
+			if (devname[0] == '\0') {
 				sk->sk_bound_dev_if = 0;
 			} else {
-				if (optlen > IFNAMSIZ - 1)
-					optlen = IFNAMSIZ - 1;
-				memset(devname, 0, sizeof(devname));
-				if (copy_from_user(devname, optval, optlen)) {
-					ret = -EFAULT;
+				struct net_device *dev = dev_get_by_name(devname);
+				if (!dev) {
+					ret = -ENODEV;
 					break;
 				}
-
-				/* Remove any cached route for this socket. */
-				sk_dst_reset(sk);
-
-				if (devname[0] == '\0') {
-					sk->sk_bound_dev_if = 0;
-				} else {
-					struct net_device *dev = dev_get_by_name(devname);
-					if (!dev) {
-						ret = -ENODEV;
-						break;
-					}
-					sk->sk_bound_dev_if = dev->ifindex;
-					dev_put(dev);
-				}
+				sk->sk_bound_dev_if = dev->ifindex;
+				dev_put(dev);
 			}
-			break;
 		}
+		break;
+	}
 #endif
 
 
-		case SO_ATTACH_FILTER:
-			ret = -EINVAL;
-			if (optlen == sizeof(struct sock_fprog)) {
-				struct sock_fprog fprog;
+	case SO_ATTACH_FILTER:
+		ret = -EINVAL;
+		if (optlen == sizeof(struct sock_fprog)) {
+			struct sock_fprog fprog;
 
-				ret = -EFAULT;
-				if (copy_from_user(&fprog, optval, sizeof(fprog)))
-					break;
-
-				ret = sk_attach_filter(&fprog, sk);
-			}
-			break;
-
-		case SO_DETACH_FILTER:
-			rcu_read_lock_bh();
-			filter = rcu_dereference(sk->sk_filter);
-			if (filter) {
-				rcu_assign_pointer(sk->sk_filter, NULL);
-				sk_filter_release(sk, filter);
-				rcu_read_unlock_bh();
+			ret = -EFAULT;
+			if (copy_from_user(&fprog, optval, sizeof(fprog)))
 				break;
-			}
+
+			ret = sk_attach_filter(&fprog, sk);
+		}
+		break;
+
+	case SO_DETACH_FILTER:
+		rcu_read_lock_bh();
+		filter = rcu_dereference(sk->sk_filter);
+		if (filter) {
+			rcu_assign_pointer(sk->sk_filter, NULL);
+			sk_filter_release(sk, filter);
 			rcu_read_unlock_bh();
-			ret = -ENONET;
 			break;
+		}
+		rcu_read_unlock_bh();
+		ret = -ENONET;
+		break;
 
-		case SO_PASSSEC:
-			if (valbool)
-				set_bit(SOCK_PASSSEC, &sock->flags);
-			else
-				clear_bit(SOCK_PASSSEC, &sock->flags);
-			break;
+	case SO_PASSSEC:
+		if (valbool)
+			set_bit(SOCK_PASSSEC, &sock->flags);
+		else
+			clear_bit(SOCK_PASSSEC, &sock->flags);
+		break;
 
 		/* We implement the SO_SNDLOWAT etc to
 		   not be settable (1003.1g 5.3) */
-		default:
-			ret = -ENOPROTOOPT;
-			break;
+	default:
+		ret = -ENOPROTOOPT;
+		break;
 	}
 	release_sock(sk);
 	return ret;
@@ -641,8 +648,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 {
 	struct sock *sk = sock->sk;
 
-	union
-	{
+	union {
 		int val;
 		struct linger ling;
 		struct timeval tm;
@@ -651,148 +657,153 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 	unsigned int lv = sizeof(int);
 	int len;
 
-	if(get_user(len,optlen))
+	if (get_user(len, optlen))
 		return -EFAULT;
-	if(len < 0)
+	if (len < 0)
 		return -EINVAL;
 
-	switch(optname)
-	{
-		case SO_DEBUG:
-			v.val = sock_flag(sk, SOCK_DBG);
-			break;
-
-		case SO_DONTROUTE:
-			v.val = sock_flag(sk, SOCK_LOCALROUTE);
-			break;
-
-		case SO_BROADCAST:
-			v.val = !!sock_flag(sk, SOCK_BROADCAST);
-			break;
-
-		case SO_SNDBUF:
-			v.val = sk->sk_sndbuf;
-			break;
-
-		case SO_RCVBUF:
-			v.val = sk->sk_rcvbuf;
-			break;
-
-		case SO_REUSEADDR:
-			v.val = sk->sk_reuse;
-			break;
-
-		case SO_KEEPALIVE:
-			v.val = !!sock_flag(sk, SOCK_KEEPOPEN);
-			break;
-
-		case SO_TYPE:
-			v.val = sk->sk_type;
-			break;
-
-		case SO_ERROR:
-			v.val = -sock_error(sk);
-			if(v.val==0)
-				v.val = xchg(&sk->sk_err_soft, 0);
-			break;
-
-		case SO_OOBINLINE:
-			v.val = !!sock_flag(sk, SOCK_URGINLINE);
-			break;
-
-		case SO_NO_CHECK:
-			v.val = sk->sk_no_check;
-			break;
-
-		case SO_PRIORITY:
-			v.val = sk->sk_priority;
-			break;
-
-		case SO_LINGER:
-			lv		= sizeof(v.ling);
-			v.ling.l_onoff	= !!sock_flag(sk, SOCK_LINGER);
-			v.ling.l_linger	= sk->sk_lingertime / HZ;
-			break;
-
-		case SO_BSDCOMPAT:
-			sock_warn_obsolete_bsdism("getsockopt");
-			break;
-
-		case SO_TIMESTAMP:
-			v.val = sock_flag(sk, SOCK_RCVTSTAMP);
-			break;
+	switch(optname) {
+	case SO_DEBUG:
+		v.val = sock_flag(sk, SOCK_DBG);
+		break;
+
+	case SO_DONTROUTE:
+		v.val = sock_flag(sk, SOCK_LOCALROUTE);
+		break;
+
+	case SO_BROADCAST:
+		v.val = !!sock_flag(sk, SOCK_BROADCAST);
+		break;
+
+	case SO_SNDBUF:
+		v.val = sk->sk_sndbuf;
+		break;
+
+	case SO_RCVBUF:
+		v.val = sk->sk_rcvbuf;
+		break;
+
+	case SO_REUSEADDR:
+		v.val = sk->sk_reuse;
+		break;
+
+	case SO_KEEPALIVE:
+		v.val = !!sock_flag(sk, SOCK_KEEPOPEN);
+		break;
+
+	case SO_TYPE:
+		v.val = sk->sk_type;
+		break;
+
+	case SO_ERROR:
+		v.val = -sock_error(sk);
+		if (v.val==0)
+			v.val = xchg(&sk->sk_err_soft, 0);
+		break;
+
+	case SO_OOBINLINE:
+		v.val = !!sock_flag(sk, SOCK_URGINLINE);
+		break;
+
+	case SO_NO_CHECK:
+		v.val = sk->sk_no_check;
+		break;
+
+	case SO_PRIORITY:
+		v.val = sk->sk_priority;
+		break;
+
+	case SO_LINGER:
+		lv		= sizeof(v.ling);
+		v.ling.l_onoff	= !!sock_flag(sk, SOCK_LINGER);
+		v.ling.l_linger	= sk->sk_lingertime / HZ;
+		break;
+
+	case SO_BSDCOMPAT:
+		sock_warn_obsolete_bsdism("getsockopt");
+		break;
+
+	case SO_TIMESTAMP:
+		v.val = sock_flag(sk, SOCK_RCVTSTAMP) &&
+				!sock_flag(sk, SOCK_RCVTSTAMPNS);
+		break;
+
+	case SO_TIMESTAMPNS:
+		v.val = sock_flag(sk, SOCK_RCVTSTAMPNS);
+		break;
+
+	case SO_RCVTIMEO:
+		lv=sizeof(struct timeval);
+		if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) {
+			v.tm.tv_sec = 0;
+			v.tm.tv_usec = 0;
+		} else {
+			v.tm.tv_sec = sk->sk_rcvtimeo / HZ;
+			v.tm.tv_usec = ((sk->sk_rcvtimeo % HZ) * 1000000) / HZ;
+		}
+		break;
+
+	case SO_SNDTIMEO:
+		lv=sizeof(struct timeval);
+		if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) {
+			v.tm.tv_sec = 0;
+			v.tm.tv_usec = 0;
+		} else {
+			v.tm.tv_sec = sk->sk_sndtimeo / HZ;
+			v.tm.tv_usec = ((sk->sk_sndtimeo % HZ) * 1000000) / HZ;
+		}
+		break;
 
-		case SO_RCVTIMEO:
-			lv=sizeof(struct timeval);
-			if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) {
-				v.tm.tv_sec = 0;
-				v.tm.tv_usec = 0;
-			} else {
-				v.tm.tv_sec = sk->sk_rcvtimeo / HZ;
-				v.tm.tv_usec = ((sk->sk_rcvtimeo % HZ) * 1000000) / HZ;
-			}
-			break;
+	case SO_RCVLOWAT:
+		v.val = sk->sk_rcvlowat;
+		break;
 
-		case SO_SNDTIMEO:
-			lv=sizeof(struct timeval);
-			if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) {
-				v.tm.tv_sec = 0;
-				v.tm.tv_usec = 0;
-			} else {
-				v.tm.tv_sec = sk->sk_sndtimeo / HZ;
-				v.tm.tv_usec = ((sk->sk_sndtimeo % HZ) * 1000000) / HZ;
-			}
-			break;
+	case SO_SNDLOWAT:
+		v.val=1;
+		break;
 
-		case SO_RCVLOWAT:
-			v.val = sk->sk_rcvlowat;
-			break;
+	case SO_PASSCRED:
+		v.val = test_bit(SOCK_PASSCRED, &sock->flags) ? 1 : 0;
+		break;
 
-		case SO_SNDLOWAT:
-			v.val=1;
-			break;
+	case SO_PEERCRED:
+		if (len > sizeof(sk->sk_peercred))
+			len = sizeof(sk->sk_peercred);
+		if (copy_to_user(optval, &sk->sk_peercred, len))
+			return -EFAULT;
+		goto lenout;
 
-		case SO_PASSCRED:
-			v.val = test_bit(SOCK_PASSCRED, &sock->flags) ? 1 : 0;
-			break;
-
-		case SO_PEERCRED:
-			if (len > sizeof(sk->sk_peercred))
-				len = sizeof(sk->sk_peercred);
-			if (copy_to_user(optval, &sk->sk_peercred, len))
-				return -EFAULT;
-			goto lenout;
-
-		case SO_PEERNAME:
-		{
-			char address[128];
-
-			if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
-				return -ENOTCONN;
-			if (lv < len)
-				return -EINVAL;
-			if (copy_to_user(optval, address, len))
-				return -EFAULT;
-			goto lenout;
-		}
+	case SO_PEERNAME:
+	{
+		char address[128];
+
+		if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
+			return -ENOTCONN;
+		if (lv < len)
+			return -EINVAL;
+		if (copy_to_user(optval, address, len))
+			return -EFAULT;
+		goto lenout;
+	}
 
-		/* Dubious BSD thing... Probably nobody even uses it, but
-		 * the UNIX standard wants it for whatever reason... -DaveM
-		 */
-		case SO_ACCEPTCONN:
-			v.val = sk->sk_state == TCP_LISTEN;
-			break;
+	/* Dubious BSD thing... Probably nobody even uses it, but
+	 * the UNIX standard wants it for whatever reason... -DaveM
+	 */
+	case SO_ACCEPTCONN:
+		v.val = sk->sk_state == TCP_LISTEN;
+		break;
 
-		case SO_PASSSEC:
-			v.val = test_bit(SOCK_PASSSEC, &sock->flags) ? 1 : 0;
-			break;
+	case SO_PASSSEC:
+		v.val = test_bit(SOCK_PASSSEC, &sock->flags) ? 1 : 0;
+		break;
 
-		case SO_PEERSEC:
-			return security_socket_getpeersec_stream(sock, optval, optlen, len);
+	case SO_PEERSEC:
+		return security_socket_getpeersec_stream(sock, optval, optlen, len);
 
-		default:
-			return(-ENOPROTOOPT);
+	default:
+		return -ENOPROTOOPT;
 	}
+
 	if (len > lv)
 		len = lv;
 	if (copy_to_user(optval, &v, len))
@@ -904,6 +915,7 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
 		sk_node_init(&newsk->sk_node);
 		sock_lock_init(newsk);
 		bh_lock_sock(newsk);
+		newsk->sk_backlog.head	= newsk->sk_backlog.tail = NULL;
 
 		atomic_set(&newsk->sk_rmem_alloc, 0);
 		atomic_set(&newsk->sk_wmem_alloc, 0);
@@ -923,7 +935,6 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
 		newsk->sk_wmem_queued	= 0;
 		newsk->sk_forward_alloc = 0;
 		newsk->sk_send_head	= NULL;
-		newsk->sk_backlog.head	= newsk->sk_backlog.tail = NULL;
 		newsk->sk_userlocks	= sk->sk_userlocks & ~SOCK_BINDPORT_LOCK;
 
 		sock_reset_flag(newsk, SOCK_DONE);
@@ -970,6 +981,21 @@ out:
 
 EXPORT_SYMBOL_GPL(sk_clone);
 
+void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
+{
+	__sk_dst_set(sk, dst);
+	sk->sk_route_caps = dst->dev->features;
+	if (sk->sk_route_caps & NETIF_F_GSO)
+		sk->sk_route_caps |= NETIF_F_GSO_MASK;
+	if (sk_can_gso(sk)) {
+		if (dst->header_len)
+			sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
+		else
+			sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM;
+	}
+}
+EXPORT_SYMBOL_GPL(sk_setup_caps);
+
 void __init sk_init(void)
 {
 	if (num_physpages <= 4096) {
@@ -1220,13 +1246,13 @@ static void __lock_sock(struct sock *sk)
 {
 	DEFINE_WAIT(wait);
 
-	for(;;) {
+	for (;;) {
 		prepare_to_wait_exclusive(&sk->sk_lock.wq, &wait,
 					TASK_UNINTERRUPTIBLE);
 		spin_unlock_bh(&sk->sk_lock.slock);
 		schedule();
 		spin_lock_bh(&sk->sk_lock.slock);
-		if(!sock_owned_by_user(sk))
+		if (!sock_owned_by_user(sk))
 			break;
 	}
 	finish_wait(&sk->sk_lock.wq, &wait);
@@ -1258,7 +1284,7 @@ static void __release_sock(struct sock *sk)
 		} while (skb != NULL);
 
 		bh_lock_sock(sk);
-	} while((skb = sk->sk_backlog.head) != NULL);
+	} while ((skb = sk->sk_backlog.head) != NULL);
 }
 
 /**
@@ -1420,7 +1446,7 @@ static void sock_def_write_space(struct sock *sk)
 	/* Do not wake up a writer until he can make "significant"
 	 * progress.  --DaveM
 	 */
-	if((atomic_read(&sk->sk_wmem_alloc) << 1) <= sk->sk_sndbuf) {
+	if ((atomic_read(&sk->sk_wmem_alloc) << 1) <= sk->sk_sndbuf) {
 		if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
 			wake_up_interruptible(sk->sk_sleep);
 
@@ -1482,8 +1508,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 
 	sock_set_flag(sk, SOCK_ZAPPED);
 
-	if(sock)
-	{
+	if (sock) {
 		sk->sk_type	=	sock->type;
 		sk->sk_sleep	=	&sock->wait;
 		sock->sk	=	sk;
@@ -1512,8 +1537,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 	sk->sk_rcvtimeo		=	MAX_SCHEDULE_TIMEOUT;
 	sk->sk_sndtimeo		=	MAX_SCHEDULE_TIMEOUT;
 
-	sk->sk_stamp.tv_sec     = -1L;
-	sk->sk_stamp.tv_usec    = -1L;
+	sk->sk_stamp = ktime_set(-1L, -1L);
 
 	atomic_set(&sk->sk_refcnt, 1);
 }
@@ -1554,17 +1578,36 @@ EXPORT_SYMBOL(release_sock);
 
 int sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
 {
+	struct timeval tv;
 	if (!sock_flag(sk, SOCK_TIMESTAMP))
 		sock_enable_timestamp(sk);
-	if (sk->sk_stamp.tv_sec == -1)
+	tv = ktime_to_timeval(sk->sk_stamp);
+	if (tv.tv_sec == -1)
 		return -ENOENT;
-	if (sk->sk_stamp.tv_sec == 0)
-		do_gettimeofday(&sk->sk_stamp);
-	return copy_to_user(userstamp, &sk->sk_stamp, sizeof(struct timeval)) ?
-		-EFAULT : 0;
+	if (tv.tv_sec == 0) {
+		sk->sk_stamp = ktime_get_real();
+		tv = ktime_to_timeval(sk->sk_stamp);
+	}
+	return copy_to_user(userstamp, &tv, sizeof(tv)) ? -EFAULT : 0;
 }
 EXPORT_SYMBOL(sock_get_timestamp);
 
+int sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
+{
+	struct timespec ts;
+	if (!sock_flag(sk, SOCK_TIMESTAMP))
+		sock_enable_timestamp(sk);
+	ts = ktime_to_timespec(sk->sk_stamp);
+	if (ts.tv_sec == -1)
+		return -ENOENT;
+	if (ts.tv_sec == 0) {
+		sk->sk_stamp = ktime_get_real();
+		ts = ktime_to_timespec(sk->sk_stamp);
+	}
+	return copy_to_user(userstamp, &ts, sizeof(ts)) ? -EFAULT : 0;
+}
+EXPORT_SYMBOL(sock_get_timestampns);
+
 void sock_enable_timestamp(struct sock *sk)
 {
 	if (!sock_flag(sk, SOCK_TIMESTAMP)) {
@@ -1899,7 +1942,7 @@ static int proto_seq_show(struct seq_file *seq, void *v)
 	return 0;
 }
 
-static struct seq_operations proto_seq_ops = {
+static const struct seq_operations proto_seq_ops = {
 	.start  = proto_seq_start,
 	.next   = proto_seq_next,
 	.stop   = proto_seq_stop,
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 1e75b158546..b29712033dd 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -136,6 +136,14 @@ ctl_table core_table[] = {
 		.mode		= 0644,
 		.proc_handler	= &proc_dointvec
 	},
+	{
+		.ctl_name	= NET_CORE_WARNINGS,
+		.procname	= "warnings",
+		.data		= &net_msg_warn,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
 	{ .ctl_name = 0 }
 };
 
diff --git a/net/core/utils.c b/net/core/utils.c
index 07236c17fab..adecfd281ae 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -30,8 +30,10 @@
 #include <asm/system.h>
 #include <asm/uaccess.h>
 
-int net_msg_cost = 5*HZ;
-int net_msg_burst = 10;
+int net_msg_cost __read_mostly = 5*HZ;
+int net_msg_burst __read_mostly = 10;
+int net_msg_warn __read_mostly = 1;
+EXPORT_SYMBOL(net_msg_warn);
 
 /*
  * All net warning printk()s should be guarded by this function.
diff --git a/net/core/wireless.c b/net/core/wireless.c
deleted file mode 100644
index b07fe270a50..00000000000
--- a/net/core/wireless.c
+++ /dev/null
@@ -1,2371 +0,0 @@
-/*
- * This file implement the Wireless Extensions APIs.
- *
- * Authors :	Jean Tourrilhes - HPL - <jt@hpl.hp.com>
- * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
- *
- * (As all part of the Linux kernel, this file is GPL)
- */
-
-/************************** DOCUMENTATION **************************/
-/*
- * API definition :
- * --------------
- * See <linux/wireless.h> for details of the APIs and the rest.
- *
- * History :
- * -------
- *
- * v1 - 5.12.01 - Jean II
- *	o Created this file.
- *
- * v2 - 13.12.01 - Jean II
- *	o Move /proc/net/wireless stuff from net/core/dev.c to here
- *	o Make Wireless Extension IOCTLs go through here
- *	o Added iw_handler handling ;-)
- *	o Added standard ioctl description
- *	o Initial dumb commit strategy based on orinoco.c
- *
- * v3 - 19.12.01 - Jean II
- *	o Make sure we don't go out of standard_ioctl[] in ioctl_standard_call
- *	o Add event dispatcher function
- *	o Add event description
- *	o Propagate events as rtnetlink IFLA_WIRELESS option
- *	o Generate event on selected SET requests
- *
- * v4 - 18.04.02 - Jean II
- *	o Fix stupid off by one in iw_ioctl_description : IW_ESSID_MAX_SIZE + 1
- *
- * v5 - 21.06.02 - Jean II
- *	o Add IW_PRIV_TYPE_ADDR in priv_type_size (+cleanup)
- *	o Reshuffle IW_HEADER_TYPE_XXX to map IW_PRIV_TYPE_XXX changes
- *	o Add IWEVCUSTOM for driver specific event/scanning token
- *	o Turn on WE_STRICT_WRITE by default + kernel warning
- *	o Fix WE_STRICT_WRITE in ioctl_export_private() (32 => iw_num)
- *	o Fix off-by-one in test (extra_size <= IFNAMSIZ)
- *
- * v6 - 9.01.03 - Jean II
- *	o Add common spy support : iw_handler_set_spy(), wireless_spy_update()
- *	o Add enhanced spy support : iw_handler_set_thrspy() and event.
- *	o Add WIRELESS_EXT version display in /proc/net/wireless
- *
- * v6 - 18.06.04 - Jean II
- *	o Change get_spydata() method for added safety
- *	o Remove spy #ifdef, they are always on -> cleaner code
- *	o Allow any size GET request if user specifies length > max
- *		and if request has IW_DESCR_FLAG_NOMAX flag or is SIOCGIWPRIV
- *	o Start migrating get_wireless_stats to struct iw_handler_def
- *	o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus
- * Based on patch from Pavel Roskin <proski@gnu.org> :
- *	o Fix kernel data leak to user space in private handler handling
- *
- * v7 - 18.3.05 - Jean II
- *	o Remove (struct iw_point *)->pointer from events and streams
- *	o Remove spy_offset from struct iw_handler_def
- *	o Start deprecating dev->get_wireless_stats, output a warning
- *	o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless
- *	o Don't loose INVALID/DBM flags when clearing UPDATED flags (iwstats)
- *
- * v8 - 17.02.06 - Jean II
- *	o RtNetlink requests support (SET/GET)
- *
- * v8b - 03.08.06 - Herbert Xu
- *	o Fix Wireless Event locking issues.
- *
- * v9 - 14.3.06 - Jean II
- *	o Change length in ESSID and NICK to strlen() instead of strlen()+1
- *	o Make standard_ioctl_num and standard_event_num unsigned
- *	o Remove (struct net_device *)->get_wireless_stats()
- *
- * v10 - 16.3.07 - Jean II
- *	o Prevent leaking of kernel space in stream on 64 bits.
- */
-
-/***************************** INCLUDES *****************************/
-
-#include <linux/module.h>
-#include <linux/types.h>		/* off_t */
-#include <linux/netdevice.h>		/* struct ifreq, dev_get_by_name() */
-#include <linux/proc_fs.h>
-#include <linux/rtnetlink.h>		/* rtnetlink stuff */
-#include <linux/seq_file.h>
-#include <linux/init.h>			/* for __init */
-#include <linux/if_arp.h>		/* ARPHRD_ETHER */
-#include <linux/etherdevice.h>		/* compare_ether_addr */
-#include <linux/interrupt.h>
-
-#include <linux/wireless.h>		/* Pretty obvious */
-#include <net/iw_handler.h>		/* New driver API */
-#include <net/netlink.h>
-
-#include <asm/uaccess.h>		/* copy_to_user() */
-
-/**************************** CONSTANTS ****************************/
-
-/* Debugging stuff */
-#undef WE_IOCTL_DEBUG		/* Debug IOCTL API */
-#undef WE_RTNETLINK_DEBUG	/* Debug RtNetlink API */
-#undef WE_EVENT_DEBUG		/* Debug Event dispatcher */
-#undef WE_SPY_DEBUG		/* Debug enhanced spy support */
-
-/* Options */
-//CONFIG_NET_WIRELESS_RTNETLINK	/* Wireless requests over RtNetlink */
-#define WE_EVENT_RTNETLINK	/* Propagate events using RtNetlink */
-#define WE_SET_EVENT		/* Generate an event on some set commands */
-
-/************************* GLOBAL VARIABLES *************************/
-/*
- * You should not use global variables, because of re-entrancy.
- * On our case, it's only const, so it's OK...
- */
-/*
- * Meta-data about all the standard Wireless Extension request we
- * know about.
- */
-static const struct iw_ioctl_description standard_ioctl[] = {
-	[SIOCSIWCOMMIT	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_NULL,
-	},
-	[SIOCGIWNAME	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_CHAR,
-		.flags		= IW_DESCR_FLAG_DUMP,
-	},
-	[SIOCSIWNWID	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-		.flags		= IW_DESCR_FLAG_EVENT,
-	},
-	[SIOCGIWNWID	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-		.flags		= IW_DESCR_FLAG_DUMP,
-	},
-	[SIOCSIWFREQ	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_FREQ,
-		.flags		= IW_DESCR_FLAG_EVENT,
-	},
-	[SIOCGIWFREQ	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_FREQ,
-		.flags		= IW_DESCR_FLAG_DUMP,
-	},
-	[SIOCSIWMODE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_UINT,
-		.flags		= IW_DESCR_FLAG_EVENT,
-	},
-	[SIOCGIWMODE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_UINT,
-		.flags		= IW_DESCR_FLAG_DUMP,
-	},
-	[SIOCSIWSENS	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCGIWSENS	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCSIWRANGE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_NULL,
-	},
-	[SIOCGIWRANGE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= sizeof(struct iw_range),
-		.flags		= IW_DESCR_FLAG_DUMP,
-	},
-	[SIOCSIWPRIV	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_NULL,
-	},
-	[SIOCGIWPRIV	- SIOCIWFIRST] = { /* (handled directly by us) */
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= sizeof(struct iw_priv_args),
-		.max_tokens	= 16,
-		.flags		= IW_DESCR_FLAG_NOMAX,
-	},
-	[SIOCSIWSTATS	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_NULL,
-	},
-	[SIOCGIWSTATS	- SIOCIWFIRST] = { /* (handled directly by us) */
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= sizeof(struct iw_statistics),
-		.flags		= IW_DESCR_FLAG_DUMP,
-	},
-	[SIOCSIWSPY	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= sizeof(struct sockaddr),
-		.max_tokens	= IW_MAX_SPY,
-	},
-	[SIOCGIWSPY	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= sizeof(struct sockaddr) +
-				  sizeof(struct iw_quality),
-		.max_tokens	= IW_MAX_SPY,
-	},
-	[SIOCSIWTHRSPY	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= sizeof(struct iw_thrspy),
-		.min_tokens	= 1,
-		.max_tokens	= 1,
-	},
-	[SIOCGIWTHRSPY	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= sizeof(struct iw_thrspy),
-		.min_tokens	= 1,
-		.max_tokens	= 1,
-	},
-	[SIOCSIWAP	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_ADDR,
-	},
-	[SIOCGIWAP	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_ADDR,
-		.flags		= IW_DESCR_FLAG_DUMP,
-	},
-	[SIOCSIWMLME	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.min_tokens	= sizeof(struct iw_mlme),
-		.max_tokens	= sizeof(struct iw_mlme),
-	},
-	[SIOCGIWAPLIST	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= sizeof(struct sockaddr) +
-				  sizeof(struct iw_quality),
-		.max_tokens	= IW_MAX_AP,
-		.flags		= IW_DESCR_FLAG_NOMAX,
-	},
-	[SIOCSIWSCAN	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.min_tokens	= 0,
-		.max_tokens	= sizeof(struct iw_scan_req),
-	},
-	[SIOCGIWSCAN	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_SCAN_MAX_DATA,
-		.flags		= IW_DESCR_FLAG_NOMAX,
-	},
-	[SIOCSIWESSID	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_ESSID_MAX_SIZE,
-		.flags		= IW_DESCR_FLAG_EVENT,
-	},
-	[SIOCGIWESSID	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_ESSID_MAX_SIZE,
-		.flags		= IW_DESCR_FLAG_DUMP,
-	},
-	[SIOCSIWNICKN	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_ESSID_MAX_SIZE,
-	},
-	[SIOCGIWNICKN	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_ESSID_MAX_SIZE,
-	},
-	[SIOCSIWRATE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCGIWRATE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCSIWRTS	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCGIWRTS	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCSIWFRAG	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCGIWFRAG	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCSIWTXPOW	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCGIWTXPOW	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCSIWRETRY	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCGIWRETRY	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCSIWENCODE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_ENCODING_TOKEN_MAX,
-		.flags		= IW_DESCR_FLAG_EVENT | IW_DESCR_FLAG_RESTRICT,
-	},
-	[SIOCGIWENCODE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_ENCODING_TOKEN_MAX,
-		.flags		= IW_DESCR_FLAG_DUMP | IW_DESCR_FLAG_RESTRICT,
-	},
-	[SIOCSIWPOWER	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCGIWPOWER	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCSIWGENIE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_GENERIC_IE_MAX,
-	},
-	[SIOCGIWGENIE	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_GENERIC_IE_MAX,
-	},
-	[SIOCSIWAUTH	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCGIWAUTH	- SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_PARAM,
-	},
-	[SIOCSIWENCODEEXT - SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.min_tokens	= sizeof(struct iw_encode_ext),
-		.max_tokens	= sizeof(struct iw_encode_ext) +
-				  IW_ENCODING_TOKEN_MAX,
-	},
-	[SIOCGIWENCODEEXT - SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.min_tokens	= sizeof(struct iw_encode_ext),
-		.max_tokens	= sizeof(struct iw_encode_ext) +
-				  IW_ENCODING_TOKEN_MAX,
-	},
-	[SIOCSIWPMKSA - SIOCIWFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.min_tokens	= sizeof(struct iw_pmksa),
-		.max_tokens	= sizeof(struct iw_pmksa),
-	},
-};
-static const unsigned standard_ioctl_num = (sizeof(standard_ioctl) /
-					    sizeof(struct iw_ioctl_description));
-
-/*
- * Meta-data about all the additional standard Wireless Extension events
- * we know about.
- */
-static const struct iw_ioctl_description standard_event[] = {
-	[IWEVTXDROP	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_ADDR,
-	},
-	[IWEVQUAL	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_QUAL,
-	},
-	[IWEVCUSTOM	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_CUSTOM_MAX,
-	},
-	[IWEVREGISTERED	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_ADDR,
-	},
-	[IWEVEXPIRED	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_ADDR,
-	},
-	[IWEVGENIE	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_GENERIC_IE_MAX,
-	},
-	[IWEVMICHAELMICFAILURE	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= sizeof(struct iw_michaelmicfailure),
-	},
-	[IWEVASSOCREQIE	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_GENERIC_IE_MAX,
-	},
-	[IWEVASSOCRESPIE	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= IW_GENERIC_IE_MAX,
-	},
-	[IWEVPMKIDCAND	- IWEVFIRST] = {
-		.header_type	= IW_HEADER_TYPE_POINT,
-		.token_size	= 1,
-		.max_tokens	= sizeof(struct iw_pmkid_cand),
-	},
-};
-static const unsigned standard_event_num = (sizeof(standard_event) /
-					    sizeof(struct iw_ioctl_description));
-
-/* Size (in bytes) of the various private data types */
-static const char iw_priv_type_size[] = {
-	0,				/* IW_PRIV_TYPE_NONE */
-	1,				/* IW_PRIV_TYPE_BYTE */
-	1,				/* IW_PRIV_TYPE_CHAR */
-	0,				/* Not defined */
-	sizeof(__u32),			/* IW_PRIV_TYPE_INT */
-	sizeof(struct iw_freq),		/* IW_PRIV_TYPE_FLOAT */
-	sizeof(struct sockaddr),	/* IW_PRIV_TYPE_ADDR */
-	0,				/* Not defined */
-};
-
-/* Size (in bytes) of various events */
-static const int event_type_size[] = {
-	IW_EV_LCP_LEN,			/* IW_HEADER_TYPE_NULL */
-	0,
-	IW_EV_CHAR_LEN,			/* IW_HEADER_TYPE_CHAR */
-	0,
-	IW_EV_UINT_LEN,			/* IW_HEADER_TYPE_UINT */
-	IW_EV_FREQ_LEN,			/* IW_HEADER_TYPE_FREQ */
-	IW_EV_ADDR_LEN,			/* IW_HEADER_TYPE_ADDR */
-	0,
-	IW_EV_POINT_LEN,		/* Without variable payload */
-	IW_EV_PARAM_LEN,		/* IW_HEADER_TYPE_PARAM */
-	IW_EV_QUAL_LEN,			/* IW_HEADER_TYPE_QUAL */
-};
-
-/* Size (in bytes) of various events, as packed */
-static const int event_type_pk_size[] = {
-	IW_EV_LCP_PK_LEN,		/* IW_HEADER_TYPE_NULL */
-	0,
-	IW_EV_CHAR_PK_LEN,		/* IW_HEADER_TYPE_CHAR */
-	0,
-	IW_EV_UINT_PK_LEN,		/* IW_HEADER_TYPE_UINT */
-	IW_EV_FREQ_PK_LEN,		/* IW_HEADER_TYPE_FREQ */
-	IW_EV_ADDR_PK_LEN,		/* IW_HEADER_TYPE_ADDR */
-	0,
-	IW_EV_POINT_PK_LEN,		/* Without variable payload */
-	IW_EV_PARAM_PK_LEN,		/* IW_HEADER_TYPE_PARAM */
-	IW_EV_QUAL_PK_LEN,		/* IW_HEADER_TYPE_QUAL */
-};
-
-/************************ COMMON SUBROUTINES ************************/
-/*
- * Stuff that may be used in various place or doesn't fit in one
- * of the section below.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the driver handler associated with a specific Wireless Extension.
- * Called from various place, so make sure it remains efficient.
- */
-static inline iw_handler get_handler(struct net_device *dev,
-				     unsigned int cmd)
-{
-	/* Don't "optimise" the following variable, it will crash */
-	unsigned int	index;		/* *MUST* be unsigned */
-
-	/* Check if we have some wireless handlers defined */
-	if(dev->wireless_handlers == NULL)
-		return NULL;
-
-	/* Try as a standard command */
-	index = cmd - SIOCIWFIRST;
-	if(index < dev->wireless_handlers->num_standard)
-		return dev->wireless_handlers->standard[index];
-
-	/* Try as a private command */
-	index = cmd - SIOCIWFIRSTPRIV;
-	if(index < dev->wireless_handlers->num_private)
-		return dev->wireless_handlers->private[index];
-
-	/* Not found */
-	return NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Get statistics out of the driver
- */
-static inline struct iw_statistics *get_wireless_stats(struct net_device *dev)
-{
-	/* New location */
-	if((dev->wireless_handlers != NULL) &&
-	   (dev->wireless_handlers->get_wireless_stats != NULL))
-		return dev->wireless_handlers->get_wireless_stats(dev);
-
-	/* Not found */
-	return (struct iw_statistics *) NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call the commit handler in the driver
- * (if exist and if conditions are right)
- *
- * Note : our current commit strategy is currently pretty dumb,
- * but we will be able to improve on that...
- * The goal is to try to agreagate as many changes as possible
- * before doing the commit. Drivers that will define a commit handler
- * are usually those that need a reset after changing parameters, so
- * we want to minimise the number of reset.
- * A cool idea is to use a timer : at each "set" command, we re-set the
- * timer, when the timer eventually fires, we call the driver.
- * Hopefully, more on that later.
- *
- * Also, I'm waiting to see how many people will complain about the
- * netif_running(dev) test. I'm open on that one...
- * Hopefully, the driver will remember to do a commit in "open()" ;-)
- */
-static inline int call_commit_handler(struct net_device *	dev)
-{
-	if((netif_running(dev)) &&
-	   (dev->wireless_handlers->standard[0] != NULL)) {
-		/* Call the commit handler on the driver */
-		return dev->wireless_handlers->standard[0](dev, NULL,
-							   NULL, NULL);
-	} else
-		return 0;		/* Command completed successfully */
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Calculate size of private arguments
- */
-static inline int get_priv_size(__u16	args)
-{
-	int	num = args & IW_PRIV_SIZE_MASK;
-	int	type = (args & IW_PRIV_TYPE_MASK) >> 12;
-
-	return num * iw_priv_type_size[type];
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Re-calculate the size of private arguments
- */
-static inline int adjust_priv_size(__u16		args,
-				   union iwreq_data *	wrqu)
-{
-	int	num = wrqu->data.length;
-	int	max = args & IW_PRIV_SIZE_MASK;
-	int	type = (args & IW_PRIV_TYPE_MASK) >> 12;
-
-	/* Make sure the driver doesn't goof up */
-	if (max < num)
-		num = max;
-
-	return num * iw_priv_type_size[type];
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get wireless stats
- *	Allow programatic access to /proc/net/wireless even if /proc
- *	doesn't exist... Also more efficient...
- */
-static int iw_handler_get_iwstats(struct net_device *		dev,
-				  struct iw_request_info *	info,
-				  union iwreq_data *		wrqu,
-				  char *			extra)
-{
-	/* Get stats from the driver */
-	struct iw_statistics *stats;
-
-	stats = get_wireless_stats(dev);
-	if (stats != (struct iw_statistics *) NULL) {
-
-		/* Copy statistics to extra */
-		memcpy(extra, stats, sizeof(struct iw_statistics));
-		wrqu->data.length = sizeof(struct iw_statistics);
-
-		/* Check if we need to clear the updated flag */
-		if(wrqu->data.flags != 0)
-			stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
-		return 0;
-	} else
-		return -EOPNOTSUPP;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get iwpriv definitions
- * Export the driver private handler definition
- * They will be picked up by tools like iwpriv...
- */
-static int iw_handler_get_private(struct net_device *		dev,
-				  struct iw_request_info *	info,
-				  union iwreq_data *		wrqu,
-				  char *			extra)
-{
-	/* Check if the driver has something to export */
-	if((dev->wireless_handlers->num_private_args == 0) ||
-	   (dev->wireless_handlers->private_args == NULL))
-		return -EOPNOTSUPP;
-
-	/* Check if there is enough buffer up there */
-	if(wrqu->data.length < dev->wireless_handlers->num_private_args) {
-		/* User space can't know in advance how large the buffer
-		 * needs to be. Give it a hint, so that we can support
-		 * any size buffer we want somewhat efficiently... */
-		wrqu->data.length = dev->wireless_handlers->num_private_args;
-		return -E2BIG;
-	}
-
-	/* Set the number of available ioctls. */
-	wrqu->data.length = dev->wireless_handlers->num_private_args;
-
-	/* Copy structure to the user buffer. */
-	memcpy(extra, dev->wireless_handlers->private_args,
-	       sizeof(struct iw_priv_args) * wrqu->data.length);
-
-	return 0;
-}
-
-
-/******************** /proc/net/wireless SUPPORT ********************/
-/*
- * The /proc/net/wireless file is a human readable user-space interface
- * exporting various wireless specific statistics from the wireless devices.
- * This is the most popular part of the Wireless Extensions ;-)
- *
- * This interface is a pure clone of /proc/net/dev (in net/core/dev.c).
- * The content of the file is basically the content of "struct iw_statistics".
- */
-
-#ifdef CONFIG_PROC_FS
-
-/* ---------------------------------------------------------------- */
-/*
- * Print one entry (line) of /proc/net/wireless
- */
-static __inline__ void wireless_seq_printf_stats(struct seq_file *seq,
-						 struct net_device *dev)
-{
-	/* Get stats from the driver */
-	struct iw_statistics *stats = get_wireless_stats(dev);
-
-	if (stats) {
-		seq_printf(seq, "%6s: %04x  %3d%c  %3d%c  %3d%c  %6d %6d %6d "
-				"%6d %6d   %6d\n",
-			   dev->name, stats->status, stats->qual.qual,
-			   stats->qual.updated & IW_QUAL_QUAL_UPDATED
-			   ? '.' : ' ',
-			   ((__s32) stats->qual.level) -
-			   ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
-			   stats->qual.updated & IW_QUAL_LEVEL_UPDATED
-			   ? '.' : ' ',
-			   ((__s32) stats->qual.noise) -
-			   ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
-			   stats->qual.updated & IW_QUAL_NOISE_UPDATED
-			   ? '.' : ' ',
-			   stats->discard.nwid, stats->discard.code,
-			   stats->discard.fragment, stats->discard.retries,
-			   stats->discard.misc, stats->miss.beacon);
-		stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
-	}
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Print info for /proc/net/wireless (print all entries)
- */
-static int wireless_seq_show(struct seq_file *seq, void *v)
-{
-	if (v == SEQ_START_TOKEN)
-		seq_printf(seq, "Inter-| sta-|   Quality        |   Discarded "
-				"packets               | Missed | WE\n"
-				" face | tus | link level noise |  nwid  "
-				"crypt   frag  retry   misc | beacon | %d\n",
-			   WIRELESS_EXT);
-	else
-		wireless_seq_printf_stats(seq, v);
-	return 0;
-}
-
-static struct seq_operations wireless_seq_ops = {
-	.start = dev_seq_start,
-	.next  = dev_seq_next,
-	.stop  = dev_seq_stop,
-	.show  = wireless_seq_show,
-};
-
-static int wireless_seq_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &wireless_seq_ops);
-}
-
-static const struct file_operations wireless_seq_fops = {
-	.owner	 = THIS_MODULE,
-	.open    = wireless_seq_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release,
-};
-
-int __init wireless_proc_init(void)
-{
-	/* Create /proc/net/wireless entry */
-	if (!proc_net_fops_create("wireless", S_IRUGO, &wireless_seq_fops))
-		return -ENOMEM;
-
-	return 0;
-}
-#endif	/* CONFIG_PROC_FS */
-
-/************************** IOCTL SUPPORT **************************/
-/*
- * The original user space API to configure all those Wireless Extensions
- * is through IOCTLs.
- * In there, we check if we need to call the new driver API (iw_handler)
- * or just call the driver ioctl handler.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a standard Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- */
-static int ioctl_standard_call(struct net_device *	dev,
-			       struct ifreq *		ifr,
-			       unsigned int		cmd,
-			       iw_handler		handler)
-{
-	struct iwreq *				iwr = (struct iwreq *) ifr;
-	const struct iw_ioctl_description *	descr;
-	struct iw_request_info			info;
-	int					ret = -EINVAL;
-
-	/* Get the description of the IOCTL */
-	if((cmd - SIOCIWFIRST) >= standard_ioctl_num)
-		return -EOPNOTSUPP;
-	descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
-#ifdef WE_IOCTL_DEBUG
-	printk(KERN_DEBUG "%s (WE) : Found standard handler for 0x%04X\n",
-	       ifr->ifr_name, cmd);
-	printk(KERN_DEBUG "%s (WE) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens);
-#endif	/* WE_IOCTL_DEBUG */
-
-	/* Prepare the call */
-	info.cmd = cmd;
-	info.flags = 0;
-
-	/* Check if we have a pointer to user space data or not */
-	if(descr->header_type != IW_HEADER_TYPE_POINT) {
-
-		/* No extra arguments. Trivial to handle */
-		ret = handler(dev, &info, &(iwr->u), NULL);
-
-#ifdef WE_SET_EVENT
-		/* Generate an event to notify listeners of the change */
-		if((descr->flags & IW_DESCR_FLAG_EVENT) &&
-		   ((ret == 0) || (ret == -EIWCOMMIT)))
-			wireless_send_event(dev, cmd, &(iwr->u), NULL);
-#endif	/* WE_SET_EVENT */
-	} else {
-		char *	extra;
-		int	extra_size;
-		int	user_length = 0;
-		int	err;
-		int	essid_compat = 0;
-
-		/* Calculate space needed by arguments. Always allocate
-		 * for max space. Easier, and won't last long... */
-		extra_size = descr->max_tokens * descr->token_size;
-
-		/* Check need for ESSID compatibility for WE < 21 */
-		switch (cmd) {
-		case SIOCSIWESSID:
-		case SIOCGIWESSID:
-		case SIOCSIWNICKN:
-		case SIOCGIWNICKN:
-			if (iwr->u.data.length == descr->max_tokens + 1)
-				essid_compat = 1;
-			else if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
-				char essid[IW_ESSID_MAX_SIZE + 1];
-
-				err = copy_from_user(essid, iwr->u.data.pointer,
-						     iwr->u.data.length *
-						     descr->token_size);
-				if (err)
-					return -EFAULT;
-
-				if (essid[iwr->u.data.length - 1] == '\0')
-					essid_compat = 1;
-			}
-			break;
-		default:
-			break;
-		}
-
-		iwr->u.data.length -= essid_compat;
-
-		/* Check what user space is giving us */
-		if(IW_IS_SET(cmd)) {
-			/* Check NULL pointer */
-			if((iwr->u.data.pointer == NULL) &&
-			   (iwr->u.data.length != 0))
-				return -EFAULT;
-			/* Check if number of token fits within bounds */
-			if(iwr->u.data.length > descr->max_tokens)
-				return -E2BIG;
-			if(iwr->u.data.length < descr->min_tokens)
-				return -EINVAL;
-		} else {
-			/* Check NULL pointer */
-			if(iwr->u.data.pointer == NULL)
-				return -EFAULT;
-			/* Save user space buffer size for checking */
-			user_length = iwr->u.data.length;
-
-			/* Don't check if user_length > max to allow forward
-			 * compatibility. The test user_length < min is
-			 * implied by the test at the end. */
-
-			/* Support for very large requests */
-			if((descr->flags & IW_DESCR_FLAG_NOMAX) &&
-			   (user_length > descr->max_tokens)) {
-				/* Allow userspace to GET more than max so
-				 * we can support any size GET requests.
-				 * There is still a limit : -ENOMEM. */
-				extra_size = user_length * descr->token_size;
-				/* Note : user_length is originally a __u16,
-				 * and token_size is controlled by us,
-				 * so extra_size won't get negative and
-				 * won't overflow... */
-			}
-		}
-
-#ifdef WE_IOCTL_DEBUG
-		printk(KERN_DEBUG "%s (WE) : Malloc %d bytes\n",
-		       dev->name, extra_size);
-#endif	/* WE_IOCTL_DEBUG */
-
-		/* Create the kernel buffer */
-		/*    kzalloc ensures NULL-termination for essid_compat */
-		extra = kzalloc(extra_size, GFP_KERNEL);
-		if (extra == NULL) {
-			return -ENOMEM;
-		}
-
-		/* If it is a SET, get all the extra data in here */
-		if(IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
-			err = copy_from_user(extra, iwr->u.data.pointer,
-					     iwr->u.data.length *
-					     descr->token_size);
-			if (err) {
-				kfree(extra);
-				return -EFAULT;
-			}
-#ifdef WE_IOCTL_DEBUG
-			printk(KERN_DEBUG "%s (WE) : Got %d bytes\n",
-			       dev->name,
-			       iwr->u.data.length * descr->token_size);
-#endif	/* WE_IOCTL_DEBUG */
-		}
-
-		/* Call the handler */
-		ret = handler(dev, &info, &(iwr->u), extra);
-
-		iwr->u.data.length += essid_compat;
-
-		/* If we have something to return to the user */
-		if (!ret && IW_IS_GET(cmd)) {
-			/* Check if there is enough buffer up there */
-			if(user_length < iwr->u.data.length) {
-				kfree(extra);
-				return -E2BIG;
-			}
-
-			err = copy_to_user(iwr->u.data.pointer, extra,
-					   iwr->u.data.length *
-					   descr->token_size);
-			if (err)
-				ret =  -EFAULT;
-#ifdef WE_IOCTL_DEBUG
-			printk(KERN_DEBUG "%s (WE) : Wrote %d bytes\n",
-			       dev->name,
-			       iwr->u.data.length * descr->token_size);
-#endif	/* WE_IOCTL_DEBUG */
-		}
-
-#ifdef WE_SET_EVENT
-		/* Generate an event to notify listeners of the change */
-		if((descr->flags & IW_DESCR_FLAG_EVENT) &&
-		   ((ret == 0) || (ret == -EIWCOMMIT))) {
-			if(descr->flags & IW_DESCR_FLAG_RESTRICT)
-				/* If the event is restricted, don't
-				 * export the payload */
-				wireless_send_event(dev, cmd, &(iwr->u), NULL);
-			else
-				wireless_send_event(dev, cmd, &(iwr->u),
-						    extra);
-		}
-#endif	/* WE_SET_EVENT */
-
-		/* Cleanup - I told you it wasn't that long ;-) */
-		kfree(extra);
-	}
-
-	/* Call commit handler if needed and defined */
-	if(ret == -EIWCOMMIT)
-		ret = call_commit_handler(dev);
-
-	/* Here, we will generate the appropriate event if needed */
-
-	return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
- *
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
- */
-static inline int ioctl_private_call(struct net_device *	dev,
-				     struct ifreq *		ifr,
-				     unsigned int		cmd,
-				     iw_handler		handler)
-{
-	struct iwreq *			iwr = (struct iwreq *) ifr;
-	const struct iw_priv_args *	descr = NULL;
-	struct iw_request_info		info;
-	int				extra_size = 0;
-	int				i;
-	int				ret = -EINVAL;
-
-	/* Get the description of the IOCTL */
-	for(i = 0; i < dev->wireless_handlers->num_private_args; i++)
-		if(cmd == dev->wireless_handlers->private_args[i].cmd) {
-			descr = &(dev->wireless_handlers->private_args[i]);
-			break;
-		}
-
-#ifdef WE_IOCTL_DEBUG
-	printk(KERN_DEBUG "%s (WE) : Found private handler for 0x%04X\n",
-	       ifr->ifr_name, cmd);
-	if(descr) {
-		printk(KERN_DEBUG "%s (WE) : Name %s, set %X, get %X\n",
-		       dev->name, descr->name,
-		       descr->set_args, descr->get_args);
-	}
-#endif	/* WE_IOCTL_DEBUG */
-
-	/* Compute the size of the set/get arguments */
-	if(descr != NULL) {
-		if(IW_IS_SET(cmd)) {
-			int	offset = 0;	/* For sub-ioctls */
-			/* Check for sub-ioctl handler */
-			if(descr->name[0] == '\0')
-				/* Reserve one int for sub-ioctl index */
-				offset = sizeof(__u32);
-
-			/* Size of set arguments */
-			extra_size = get_priv_size(descr->set_args);
-
-			/* Does it fits in iwr ? */
-			if((descr->set_args & IW_PRIV_SIZE_FIXED) &&
-			   ((extra_size + offset) <= IFNAMSIZ))
-				extra_size = 0;
-		} else {
-			/* Size of get arguments */
-			extra_size = get_priv_size(descr->get_args);
-
-			/* Does it fits in iwr ? */
-			if((descr->get_args & IW_PRIV_SIZE_FIXED) &&
-			   (extra_size <= IFNAMSIZ))
-				extra_size = 0;
-		}
-	}
-
-	/* Prepare the call */
-	info.cmd = cmd;
-	info.flags = 0;
-
-	/* Check if we have a pointer to user space data or not. */
-	if(extra_size == 0) {
-		/* No extra arguments. Trivial to handle */
-		ret = handler(dev, &info, &(iwr->u), (char *) &(iwr->u));
-	} else {
-		char *	extra;
-		int	err;
-
-		/* Check what user space is giving us */
-		if(IW_IS_SET(cmd)) {
-			/* Check NULL pointer */
-			if((iwr->u.data.pointer == NULL) &&
-			   (iwr->u.data.length != 0))
-				return -EFAULT;
-
-			/* Does it fits within bounds ? */
-			if(iwr->u.data.length > (descr->set_args &
-						 IW_PRIV_SIZE_MASK))
-				return -E2BIG;
-		} else {
-			/* Check NULL pointer */
-			if(iwr->u.data.pointer == NULL)
-				return -EFAULT;
-		}
-
-#ifdef WE_IOCTL_DEBUG
-		printk(KERN_DEBUG "%s (WE) : Malloc %d bytes\n",
-		       dev->name, extra_size);
-#endif	/* WE_IOCTL_DEBUG */
-
-		/* Always allocate for max space. Easier, and won't last
-		 * long... */
-		extra = kmalloc(extra_size, GFP_KERNEL);
-		if (extra == NULL) {
-			return -ENOMEM;
-		}
-
-		/* If it is a SET, get all the extra data in here */
-		if(IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
-			err = copy_from_user(extra, iwr->u.data.pointer,
-					     extra_size);
-			if (err) {
-				kfree(extra);
-				return -EFAULT;
-			}
-#ifdef WE_IOCTL_DEBUG
-			printk(KERN_DEBUG "%s (WE) : Got %d elem\n",
-			       dev->name, iwr->u.data.length);
-#endif	/* WE_IOCTL_DEBUG */
-		}
-
-		/* Call the handler */
-		ret = handler(dev, &info, &(iwr->u), extra);
-
-		/* If we have something to return to the user */
-		if (!ret && IW_IS_GET(cmd)) {
-
-			/* Adjust for the actual length if it's variable,
-			 * avoid leaking kernel bits outside. */
-			if (!(descr->get_args & IW_PRIV_SIZE_FIXED)) {
-				extra_size = adjust_priv_size(descr->get_args,
-							      &(iwr->u));
-			}
-
-			err = copy_to_user(iwr->u.data.pointer, extra,
-					   extra_size);
-			if (err)
-				ret =  -EFAULT;
-#ifdef WE_IOCTL_DEBUG
-			printk(KERN_DEBUG "%s (WE) : Wrote %d elem\n",
-			       dev->name, iwr->u.data.length);
-#endif	/* WE_IOCTL_DEBUG */
-		}
-
-		/* Cleanup - I told you it wasn't that long ;-) */
-		kfree(extra);
-	}
-
-
-	/* Call commit handler if needed and defined */
-	if(ret == -EIWCOMMIT)
-		ret = call_commit_handler(dev);
-
-	return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Main IOCTl dispatcher. Called from the main networking code
- * (dev_ioctl() in net/core/dev.c).
- * Check the type of IOCTL and call the appropriate wrapper...
- */
-int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd)
-{
-	struct net_device *dev;
-	iw_handler	handler;
-
-	/* Permissions are already checked in dev_ioctl() before calling us.
-	 * The copy_to/from_user() of ifr is also dealt with in there */
-
-	/* Make sure the device exist */
-	if ((dev = __dev_get_by_name(ifr->ifr_name)) == NULL)
-		return -ENODEV;
-
-	/* A bunch of special cases, then the generic case...
-	 * Note that 'cmd' is already filtered in dev_ioctl() with
-	 * (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) */
-	switch(cmd)
-	{
-		case SIOCGIWSTATS:
-			/* Get Wireless Stats */
-			return ioctl_standard_call(dev,
-						   ifr,
-						   cmd,
-						   &iw_handler_get_iwstats);
-
-		case SIOCGIWPRIV:
-			/* Check if we have some wireless handlers defined */
-			if(dev->wireless_handlers != NULL) {
-				/* We export to user space the definition of
-				 * the private handler ourselves */
-				return ioctl_standard_call(dev,
-							   ifr,
-							   cmd,
-							   &iw_handler_get_private);
-			}
-			// ## Fall-through for old API ##
-		default:
-			/* Generic IOCTL */
-			/* Basic check */
-			if (!netif_device_present(dev))
-				return -ENODEV;
-			/* New driver API : try to find the handler */
-			handler = get_handler(dev, cmd);
-			if(handler != NULL) {
-				/* Standard and private are not the same */
-				if(cmd < SIOCIWFIRSTPRIV)
-					return ioctl_standard_call(dev,
-								   ifr,
-								   cmd,
-								   handler);
-				else
-					return ioctl_private_call(dev,
-								  ifr,
-								  cmd,
-								  handler);
-			}
-			/* Old driver API : call driver ioctl handler */
-			if (dev->do_ioctl) {
-				return dev->do_ioctl(dev, ifr, cmd);
-			}
-			return -EOPNOTSUPP;
-	}
-	/* Not reached */
-	return -EINVAL;
-}
-
-/********************** RTNETLINK REQUEST API **********************/
-/*
- * The alternate user space API to configure all those Wireless Extensions
- * is through RtNetlink.
- * This API support only the new driver API (iw_handler).
- *
- * This RtNetlink API use the same query/reply model as the ioctl API.
- * Maximum effort has been done to fit in the RtNetlink model, and
- * we support both RtNetlink Set and RtNelink Get operations.
- * On the other hand, we don't offer Dump operations because of the
- * following reasons :
- *	o Large number of parameters, most optional
- *	o Large size of some parameters (> 100 bytes)
- *	o Each parameters need to be extracted from hardware
- *	o Scan requests can take seconds and disable network activity.
- * Because of this high cost/overhead, we want to return only the
- * parameters the user application is really interested in.
- * We could offer partial Dump using the IW_DESCR_FLAG_DUMP flag.
- *
- * The API uses the standard RtNetlink socket. When the RtNetlink code
- * find a IFLA_WIRELESS field in a RtNetlink SET_LINK request,
- * it calls here.
- */
-
-#ifdef CONFIG_NET_WIRELESS_RTNETLINK
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a standard Wireless Extension GET handler.
- * We do various checks and call the handler with the proper args.
- */
-static int rtnetlink_standard_get(struct net_device *	dev,
-				  struct iw_event *	request,
-				  int			request_len,
-				  iw_handler		handler,
-				  char **		p_buf,
-				  int *			p_len)
-{
-	const struct iw_ioctl_description *	descr = NULL;
-	unsigned int				cmd;
-	union iwreq_data *			wrqu;
-	int					hdr_len;
-	struct iw_request_info			info;
-	char *					buffer = NULL;
-	int					buffer_size = 0;
-	int					ret = -EINVAL;
-
-	/* Get the description of the Request */
-	cmd = request->cmd;
-	if((cmd - SIOCIWFIRST) >= standard_ioctl_num)
-		return -EOPNOTSUPP;
-	descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
-#ifdef WE_RTNETLINK_DEBUG
-	printk(KERN_DEBUG "%s (WE.r) : Found standard handler for 0x%04X\n",
-	       dev->name, cmd);
-	printk(KERN_DEBUG "%s (WE.r) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-	/* Check if wrqu is complete */
-	hdr_len = event_type_size[descr->header_type];
-	if(request_len < hdr_len) {
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG
-		       "%s (WE.r) : Wireless request too short (%d)\n",
-		       dev->name, request_len);
-#endif	/* WE_RTNETLINK_DEBUG */
-		return -EINVAL;
-	}
-
-	/* Prepare the call */
-	info.cmd = cmd;
-	info.flags = 0;
-
-	/* Check if we have extra data in the reply or not */
-	if(descr->header_type != IW_HEADER_TYPE_POINT) {
-
-		/* Create the kernel buffer that we will return.
-		 * It's at an offset to match the TYPE_POINT case... */
-		buffer_size = request_len + IW_EV_POINT_OFF;
-		buffer = kmalloc(buffer_size, GFP_KERNEL);
-		if (buffer == NULL) {
-			return -ENOMEM;
-		}
-		/* Copy event data */
-		memcpy(buffer + IW_EV_POINT_OFF, request, request_len);
-		/* Use our own copy of wrqu */
-		wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF
-					     + IW_EV_LCP_PK_LEN);
-
-		/* No extra arguments. Trivial to handle */
-		ret = handler(dev, &info, wrqu, NULL);
-
-	} else {
-		union iwreq_data	wrqu_point;
-		char *			extra = NULL;
-		int			extra_size = 0;
-
-		/* Get a temp copy of wrqu (skip pointer) */
-		memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
-		       ((char *) request) + IW_EV_LCP_PK_LEN,
-		       IW_EV_POINT_LEN - IW_EV_LCP_PK_LEN);
-
-		/* Calculate space needed by arguments. Always allocate
-		 * for max space. Easier, and won't last long... */
-		extra_size = descr->max_tokens * descr->token_size;
-		/* Support for very large requests */
-		if((descr->flags & IW_DESCR_FLAG_NOMAX) &&
-		   (wrqu_point.data.length > descr->max_tokens))
-			extra_size = (wrqu_point.data.length
-				      * descr->token_size);
-		buffer_size = extra_size + IW_EV_POINT_PK_LEN + IW_EV_POINT_OFF;
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n",
-		       dev->name, extra_size, buffer_size);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-		/* Create the kernel buffer that we will return */
-		buffer = kmalloc(buffer_size, GFP_KERNEL);
-		if (buffer == NULL) {
-			return -ENOMEM;
-		}
-
-		/* Put wrqu in the right place (just before extra).
-		 * Leave space for IWE header and dummy pointer...
-		 * Note that IW_EV_LCP_PK_LEN==4 bytes, so it's still aligned.
-		 */
-		memcpy(buffer + IW_EV_LCP_PK_LEN + IW_EV_POINT_OFF,
-		       ((char *) &wrqu_point) + IW_EV_POINT_OFF,
-		       IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
-		wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_PK_LEN);
-
-		/* Extra comes logically after that. Offset +12 bytes. */
-		extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_PK_LEN;
-
-		/* Call the handler */
-		ret = handler(dev, &info, wrqu, extra);
-
-		/* Calculate real returned length */
-		extra_size = (wrqu->data.length * descr->token_size);
-		/* Re-adjust reply size */
-		request->len = extra_size + IW_EV_POINT_PK_LEN;
-
-		/* Put the iwe header where it should, i.e. scrap the
-		 * dummy pointer. */
-		memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_PK_LEN);
-
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-		/* Check if there is enough buffer up there */
-		if(wrqu_point.data.length < wrqu->data.length)
-			ret = -E2BIG;
-	}
-
-	/* Return the buffer to the caller */
-	if (!ret) {
-		*p_buf = buffer;
-		*p_len = request->len;
-	} else {
-		/* Cleanup */
-		if(buffer)
-			kfree(buffer);
-	}
-
-	return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a standard Wireless Extension SET handler.
- * We do various checks and call the handler with the proper args.
- */
-static inline int rtnetlink_standard_set(struct net_device *	dev,
-					 struct iw_event *	request,
-					 int			request_len,
-					 iw_handler		handler)
-{
-	const struct iw_ioctl_description *	descr = NULL;
-	unsigned int				cmd;
-	union iwreq_data *			wrqu;
-	union iwreq_data			wrqu_point;
-	int					hdr_len;
-	char *					extra = NULL;
-	int					extra_size = 0;
-	struct iw_request_info			info;
-	int					ret = -EINVAL;
-
-	/* Get the description of the Request */
-	cmd = request->cmd;
-	if((cmd - SIOCIWFIRST) >= standard_ioctl_num)
-		return -EOPNOTSUPP;
-	descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
-#ifdef WE_RTNETLINK_DEBUG
-	printk(KERN_DEBUG "%s (WE.r) : Found standard SET handler for 0x%04X\n",
-	       dev->name, cmd);
-	printk(KERN_DEBUG "%s (WE.r) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-	/* Extract fixed header from request. This is properly aligned. */
-	wrqu = (union iwreq_data *) (((char *) request) + IW_EV_LCP_PK_LEN);
-
-	/* Check if wrqu is complete */
-	hdr_len = event_type_pk_size[descr->header_type];
-	if(request_len < hdr_len) {
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG
-		       "%s (WE.r) : Wireless request too short (%d)\n",
-		       dev->name, request_len);
-#endif	/* WE_RTNETLINK_DEBUG */
-		return -EINVAL;
-	}
-
-	/* Prepare the call */
-	info.cmd = cmd;
-	info.flags = 0;
-
-	/* Check if we have extra data in the request or not */
-	if(descr->header_type != IW_HEADER_TYPE_POINT) {
-
-		/* No extra arguments. Trivial to handle */
-		ret = handler(dev, &info, wrqu, NULL);
-
-	} else {
-		int	extra_len;
-
-		/* Put wrqu in the right place (skip pointer) */
-		memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
-		       wrqu, IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
-		/* Don't forget about the event code... */
-		wrqu = &wrqu_point;
-
-		/* Check if number of token fits within bounds */
-		if(wrqu_point.data.length > descr->max_tokens)
-			return -E2BIG;
-		if(wrqu_point.data.length < descr->min_tokens)
-			return -EINVAL;
-
-		/* Real length of payload */
-		extra_len = wrqu_point.data.length * descr->token_size;
-
-		/* Check if request is self consistent */
-		if((request_len - hdr_len) < extra_len) {
-#ifdef WE_RTNETLINK_DEBUG
-			printk(KERN_DEBUG "%s (WE.r) : Wireless request data too short (%d)\n",
-			       dev->name, extra_size);
-#endif	/* WE_RTNETLINK_DEBUG */
-			return -EINVAL;
-		}
-
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes\n",
-		       dev->name, extra_size);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-		/* Always allocate for max space. Easier, and won't last
-		 * long... */
-		extra_size = descr->max_tokens * descr->token_size;
-		extra = kmalloc(extra_size, GFP_KERNEL);
-		if (extra == NULL)
-			return -ENOMEM;
-
-		/* Copy extra in aligned buffer */
-		memcpy(extra, ((char *) request) + hdr_len, extra_len);
-
-		/* Call the handler */
-		ret = handler(dev, &info, &wrqu_point, extra);
-	}
-
-#ifdef WE_SET_EVENT
-	/* Generate an event to notify listeners of the change */
-	if((descr->flags & IW_DESCR_FLAG_EVENT) &&
-	   ((ret == 0) || (ret == -EIWCOMMIT))) {
-		if(descr->flags & IW_DESCR_FLAG_RESTRICT)
-			/* If the event is restricted, don't
-			 * export the payload */
-			wireless_send_event(dev, cmd, wrqu, NULL);
-		else
-			wireless_send_event(dev, cmd, wrqu, extra);
-	}
-#endif	/* WE_SET_EVENT */
-
-	/* Cleanup - I told you it wasn't that long ;-) */
-	if(extra)
-		kfree(extra);
-
-	/* Call commit handler if needed and defined */
-	if(ret == -EIWCOMMIT)
-		ret = call_commit_handler(dev);
-
-	return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension GET handler.
- * Same as above...
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
- *
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
- */
-static inline int rtnetlink_private_get(struct net_device *	dev,
-					struct iw_event *	request,
-					int			request_len,
-					iw_handler		handler,
-					char **			p_buf,
-					int *			p_len)
-{
-	const struct iw_priv_args *	descr = NULL;
-	unsigned int			cmd;
-	union iwreq_data *		wrqu;
-	int				hdr_len;
-	struct iw_request_info		info;
-	int				extra_size = 0;
-	int				i;
-	char *				buffer = NULL;
-	int				buffer_size = 0;
-	int				ret = -EINVAL;
-
-	/* Get the description of the Request */
-	cmd = request->cmd;
-	for(i = 0; i < dev->wireless_handlers->num_private_args; i++)
-		if(cmd == dev->wireless_handlers->private_args[i].cmd) {
-			descr = &(dev->wireless_handlers->private_args[i]);
-			break;
-		}
-	if(descr == NULL)
-		return -EOPNOTSUPP;
-
-#ifdef WE_RTNETLINK_DEBUG
-	printk(KERN_DEBUG "%s (WE.r) : Found private handler for 0x%04X\n",
-	       dev->name, cmd);
-	printk(KERN_DEBUG "%s (WE.r) : Name %s, set %X, get %X\n",
-	       dev->name, descr->name, descr->set_args, descr->get_args);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-	/* Compute the max size of the get arguments */
-	extra_size = get_priv_size(descr->get_args);
-
-	/* Does it fits in wrqu ? */
-	if((descr->get_args & IW_PRIV_SIZE_FIXED) &&
-	   (extra_size <= IFNAMSIZ)) {
-		hdr_len = extra_size;
-		extra_size = 0;
-	} else {
-		hdr_len = IW_EV_POINT_PK_LEN;
-	}
-
-	/* Check if wrqu is complete */
-	if(request_len < hdr_len) {
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG
-		       "%s (WE.r) : Wireless request too short (%d)\n",
-		       dev->name, request_len);
-#endif	/* WE_RTNETLINK_DEBUG */
-		return -EINVAL;
-	}
-
-	/* Prepare the call */
-	info.cmd = cmd;
-	info.flags = 0;
-
-	/* Check if we have a pointer to user space data or not. */
-	if(extra_size == 0) {
-
-		/* Create the kernel buffer that we will return.
-		 * It's at an offset to match the TYPE_POINT case... */
-		buffer_size = request_len + IW_EV_POINT_OFF;
-		buffer = kmalloc(buffer_size, GFP_KERNEL);
-		if (buffer == NULL) {
-			return -ENOMEM;
-		}
-		/* Copy event data */
-		memcpy(buffer + IW_EV_POINT_OFF, request, request_len);
-		/* Use our own copy of wrqu */
-		wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF
-					     + IW_EV_LCP_PK_LEN);
-
-		/* No extra arguments. Trivial to handle */
-		ret = handler(dev, &info, wrqu, (char *) wrqu);
-
-	} else {
-		char *	extra;
-
-		/* Buffer for full reply */
-		buffer_size = extra_size + IW_EV_POINT_PK_LEN + IW_EV_POINT_OFF;
-
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n",
-		       dev->name, extra_size, buffer_size);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-		/* Create the kernel buffer that we will return */
-		buffer = kmalloc(buffer_size, GFP_KERNEL);
-		if (buffer == NULL) {
-			return -ENOMEM;
-		}
-
-		/* Put wrqu in the right place (just before extra).
-		 * Leave space for IWE header and dummy pointer...
-		 * Note that IW_EV_LCP_PK_LEN==4 bytes, so it's still aligned.
-		 */
-		memcpy(buffer + IW_EV_LCP_PK_LEN + IW_EV_POINT_OFF,
-		       ((char *) request) + IW_EV_LCP_PK_LEN,
-		       IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
-		wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_PK_LEN);
-
-		/* Extra comes logically after that. Offset +12 bytes. */
-		extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_PK_LEN;
-
-		/* Call the handler */
-		ret = handler(dev, &info, wrqu, extra);
-
-		/* Adjust for the actual length if it's variable,
-		 * avoid leaking kernel bits outside. */
-		if (!(descr->get_args & IW_PRIV_SIZE_FIXED))
-			extra_size = adjust_priv_size(descr->get_args, wrqu);
-		/* Re-adjust reply size */
-		request->len = extra_size + IW_EV_POINT_PK_LEN;
-
-		/* Put the iwe header where it should, i.e. scrap the
-		 * dummy pointer. */
-		memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_PK_LEN);
-
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size);
-#endif	/* WE_RTNETLINK_DEBUG */
-	}
-
-	/* Return the buffer to the caller */
-	if (!ret) {
-		*p_buf = buffer;
-		*p_len = request->len;
-	} else {
-		/* Cleanup */
-		if(buffer)
-			kfree(buffer);
-	}
-
-	return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension SET handler.
- * Same as above...
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
- *
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
- */
-static inline int rtnetlink_private_set(struct net_device *	dev,
-					struct iw_event *	request,
-					int			request_len,
-					iw_handler		handler)
-{
-	const struct iw_priv_args *	descr = NULL;
-	unsigned int			cmd;
-	union iwreq_data *		wrqu;
-	union iwreq_data		wrqu_point;
-	int				hdr_len;
-	char *				extra = NULL;
-	int				extra_size = 0;
-	int				offset = 0;	/* For sub-ioctls */
-	struct iw_request_info		info;
-	int				i;
-	int				ret = -EINVAL;
-
-	/* Get the description of the Request */
-	cmd = request->cmd;
-	for(i = 0; i < dev->wireless_handlers->num_private_args; i++)
-		if(cmd == dev->wireless_handlers->private_args[i].cmd) {
-			descr = &(dev->wireless_handlers->private_args[i]);
-			break;
-		}
-	if(descr == NULL)
-		return -EOPNOTSUPP;
-
-#ifdef WE_RTNETLINK_DEBUG
-	printk(KERN_DEBUG "%s (WE.r) : Found private handler for 0x%04X\n",
-	       ifr->ifr_name, cmd);
-	printk(KERN_DEBUG "%s (WE.r) : Name %s, set %X, get %X\n",
-	       dev->name, descr->name, descr->set_args, descr->get_args);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-	/* Compute the size of the set arguments */
-	/* Check for sub-ioctl handler */
-	if(descr->name[0] == '\0')
-		/* Reserve one int for sub-ioctl index */
-		offset = sizeof(__u32);
-
-	/* Size of set arguments */
-	extra_size = get_priv_size(descr->set_args);
-
-	/* Does it fits in wrqu ? */
-	if((descr->set_args & IW_PRIV_SIZE_FIXED) &&
-	   (extra_size <= IFNAMSIZ)) {
-		hdr_len = IW_EV_LCP_PK_LEN + extra_size;
-		extra_size = 0;
-	} else {
-		hdr_len = IW_EV_POINT_PK_LEN;
-	}
-
-	/* Extract fixed header from request. This is properly aligned. */
-	wrqu = (union iwreq_data *) (((char *) request) + IW_EV_LCP_PK_LEN);
-
-	/* Check if wrqu is complete */
-	if(request_len < hdr_len) {
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG
-		       "%s (WE.r) : Wireless request too short (%d)\n",
-		       dev->name, request_len);
-#endif	/* WE_RTNETLINK_DEBUG */
-		return -EINVAL;
-	}
-
-	/* Prepare the call */
-	info.cmd = cmd;
-	info.flags = 0;
-
-	/* Check if we have a pointer to user space data or not. */
-	if(extra_size == 0) {
-
-		/* No extra arguments. Trivial to handle */
-		ret = handler(dev, &info, wrqu, (char *) wrqu);
-
-	} else {
-		int	extra_len;
-
-		/* Put wrqu in the right place (skip pointer) */
-		memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
-		       wrqu, IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
-
-		/* Does it fits within bounds ? */
-		if(wrqu_point.data.length > (descr->set_args &
-					     IW_PRIV_SIZE_MASK))
-			return -E2BIG;
-
-		/* Real length of payload */
-		extra_len = adjust_priv_size(descr->set_args, &wrqu_point);
-
-		/* Check if request is self consistent */
-		if((request_len - hdr_len) < extra_len) {
-#ifdef WE_RTNETLINK_DEBUG
-			printk(KERN_DEBUG "%s (WE.r) : Wireless request data too short (%d)\n",
-			       dev->name, extra_size);
-#endif	/* WE_RTNETLINK_DEBUG */
-			return -EINVAL;
-		}
-
-#ifdef WE_RTNETLINK_DEBUG
-		printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes\n",
-		       dev->name, extra_size);
-#endif	/* WE_RTNETLINK_DEBUG */
-
-		/* Always allocate for max space. Easier, and won't last
-		 * long... */
-		extra = kmalloc(extra_size, GFP_KERNEL);
-		if (extra == NULL)
-			return -ENOMEM;
-
-		/* Copy extra in aligned buffer */
-		memcpy(extra, ((char *) request) + hdr_len, extra_len);
-
-		/* Call the handler */
-		ret = handler(dev, &info, &wrqu_point, extra);
-
-		/* Cleanup - I told you it wasn't that long ;-) */
-		kfree(extra);
-	}
-
-	/* Call commit handler if needed and defined */
-	if(ret == -EIWCOMMIT)
-		ret = call_commit_handler(dev);
-
-	return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Main RtNetlink dispatcher. Called from the main networking code
- * (do_getlink() in net/core/rtnetlink.c).
- * Check the type of Request and call the appropriate wrapper...
- */
-int wireless_rtnetlink_get(struct net_device *	dev,
-			   char *		data,
-			   int			len,
-			   char **		p_buf,
-			   int *		p_len)
-{
-	struct iw_event *	request = (struct iw_event *) data;
-	iw_handler		handler;
-
-	/* Check length */
-	if(len < IW_EV_LCP_PK_LEN) {
-		printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n",
-		       dev->name, len);
-		return -EINVAL;
-	}
-
-	/* ReCheck length (len may have padding) */
-	if(request->len > len) {
-		printk(KERN_DEBUG "%s (WE.r) : RtNetlink request len invalid (%d-%d)\n",
-		       dev->name, request->len, len);
-		return -EINVAL;
-	}
-
-	/* Only accept GET requests in here */
-	if(!IW_IS_GET(request->cmd))
-		return -EOPNOTSUPP;
-
-	/* If command is `get the encoding parameters', check if
-	 * the user has the right to do it */
-	if (request->cmd == SIOCGIWENCODE ||
-	    request->cmd == SIOCGIWENCODEEXT) {
-		if (!capable(CAP_NET_ADMIN))
-			return -EPERM;
-	}
-
-	/* Special cases */
-	if(request->cmd == SIOCGIWSTATS)
-		/* Get Wireless Stats */
-		return rtnetlink_standard_get(dev,
-					      request,
-					      request->len,
-					      &iw_handler_get_iwstats,
-					      p_buf, p_len);
-	if(request->cmd == SIOCGIWPRIV) {
-		/* Check if we have some wireless handlers defined */
-		if(dev->wireless_handlers == NULL)
-			return -EOPNOTSUPP;
-		/* Get Wireless Stats */
-		return rtnetlink_standard_get(dev,
-					      request,
-					      request->len,
-					      &iw_handler_get_private,
-					      p_buf, p_len);
-	}
-
-	/* Basic check */
-	if (!netif_device_present(dev))
-		return -ENODEV;
-
-	/* Try to find the handler */
-	handler = get_handler(dev, request->cmd);
-	if(handler != NULL) {
-		/* Standard and private are not the same */
-		if(request->cmd < SIOCIWFIRSTPRIV)
-			return rtnetlink_standard_get(dev,
-						      request,
-						      request->len,
-						      handler,
-						      p_buf, p_len);
-		else
-			return rtnetlink_private_get(dev,
-						     request,
-						     request->len,
-						     handler,
-						     p_buf, p_len);
-	}
-
-	return -EOPNOTSUPP;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Main RtNetlink dispatcher. Called from the main networking code
- * (do_setlink() in net/core/rtnetlink.c).
- * Check the type of Request and call the appropriate wrapper...
- */
-int wireless_rtnetlink_set(struct net_device *	dev,
-			   char *		data,
-			   int			len)
-{
-	struct iw_event *	request = (struct iw_event *) data;
-	iw_handler		handler;
-
-	/* Check length */
-	if(len < IW_EV_LCP_PK_LEN) {
-		printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n",
-		       dev->name, len);
-		return -EINVAL;
-	}
-
-	/* ReCheck length (len may have padding) */
-	if(request->len > len) {
-		printk(KERN_DEBUG "%s (WE.r) : RtNetlink request len invalid (%d-%d)\n",
-		       dev->name, request->len, len);
-		return -EINVAL;
-	}
-
-	/* Only accept SET requests in here */
-	if(!IW_IS_SET(request->cmd))
-		return -EOPNOTSUPP;
-
-	/* Basic check */
-	if (!netif_device_present(dev))
-		return -ENODEV;
-
-	/* New driver API : try to find the handler */
-	handler = get_handler(dev, request->cmd);
-	if(handler != NULL) {
-		/* Standard and private are not the same */
-		if(request->cmd < SIOCIWFIRSTPRIV)
-			return rtnetlink_standard_set(dev,
-						      request,
-						      request->len,
-						      handler);
-		else
-			return rtnetlink_private_set(dev,
-						     request,
-						     request->len,
-						     handler);
-	}
-
-	return -EOPNOTSUPP;
-}
-#endif	/* CONFIG_NET_WIRELESS_RTNETLINK */
-
-
-/************************* EVENT PROCESSING *************************/
-/*
- * Process events generated by the wireless layer or the driver.
- * Most often, the event will be propagated through rtnetlink
- */
-
-#ifdef WE_EVENT_RTNETLINK
-/* ---------------------------------------------------------------- */
-/*
- * Locking...
- * ----------
- *
- * Thanks to Herbert Xu <herbert@gondor.apana.org.au> for fixing
- * the locking issue in here and implementing this code !
- *
- * The issue : wireless_send_event() is often called in interrupt context,
- * while the Netlink layer can never be called in interrupt context.
- * The fully formed RtNetlink events are queued, and then a tasklet is run
- * to feed those to Netlink.
- * The skb_queue is interrupt safe, and its lock is not held while calling
- * Netlink, so there is no possibility of dealock.
- * Jean II
- */
-
-static struct sk_buff_head wireless_nlevent_queue;
-
-static int __init wireless_nlevent_init(void)
-{
-	skb_queue_head_init(&wireless_nlevent_queue);
-	return 0;
-}
-
-subsys_initcall(wireless_nlevent_init);
-
-static void wireless_nlevent_process(unsigned long data)
-{
-	struct sk_buff *skb;
-
-	while ((skb = skb_dequeue(&wireless_nlevent_queue)))
-		rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
-}
-
-static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0);
-
-/* ---------------------------------------------------------------- */
-/*
- * Fill a rtnetlink message with our event data.
- * Note that we propage only the specified event and don't dump the
- * current wireless config. Dumping the wireless config is far too
- * expensive (for each parameter, the driver need to query the hardware).
- */
-static inline int rtnetlink_fill_iwinfo(struct sk_buff *	skb,
-					struct net_device *	dev,
-					int			type,
-					char *			event,
-					int			event_len)
-{
-	struct ifinfomsg *r;
-	struct nlmsghdr  *nlh;
-	unsigned char	 *b = skb->tail;
-
-	nlh = NLMSG_PUT(skb, 0, 0, type, sizeof(*r));
-	r = NLMSG_DATA(nlh);
-	r->ifi_family = AF_UNSPEC;
-	r->__ifi_pad = 0;
-	r->ifi_type = dev->type;
-	r->ifi_index = dev->ifindex;
-	r->ifi_flags = dev_get_flags(dev);
-	r->ifi_change = 0;	/* Wireless changes don't affect those flags */
-
-	/* Add the wireless events in the netlink packet */
-	RTA_PUT(skb, IFLA_WIRELESS, event_len, event);
-
-	nlh->nlmsg_len = skb->tail - b;
-	return skb->len;
-
-nlmsg_failure:
-rtattr_failure:
-	skb_trim(skb, b - skb->data);
-	return -1;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Create and broadcast and send it on the standard rtnetlink socket
- * This is a pure clone rtmsg_ifinfo() in net/core/rtnetlink.c
- * Andrzej Krzysztofowicz mandated that I used a IFLA_XXX field
- * within a RTM_NEWLINK event.
- */
-static inline void rtmsg_iwinfo(struct net_device *	dev,
-				char *			event,
-				int			event_len)
-{
-	struct sk_buff *skb;
-	int size = NLMSG_GOODSIZE;
-
-	skb = alloc_skb(size, GFP_ATOMIC);
-	if (!skb)
-		return;
-
-	if (rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK,
-				  event, event_len) < 0) {
-		kfree_skb(skb);
-		return;
-	}
-	NETLINK_CB(skb).dst_group = RTNLGRP_LINK;
-	skb_queue_tail(&wireless_nlevent_queue, skb);
-	tasklet_schedule(&wireless_nlevent_tasklet);
-}
-
-#endif	/* WE_EVENT_RTNETLINK */
-
-/* ---------------------------------------------------------------- */
-/*
- * Main event dispatcher. Called from other parts and drivers.
- * Send the event on the appropriate channels.
- * May be called from interrupt context.
- */
-void wireless_send_event(struct net_device *	dev,
-			 unsigned int		cmd,
-			 union iwreq_data *	wrqu,
-			 char *			extra)
-{
-	const struct iw_ioctl_description *	descr = NULL;
-	int extra_len = 0;
-	struct iw_event  *event;		/* Mallocated whole event */
-	int event_len;				/* Its size */
-	int hdr_len;				/* Size of the event header */
-	int wrqu_off = 0;			/* Offset in wrqu */
-	/* Don't "optimise" the following variable, it will crash */
-	unsigned	cmd_index;		/* *MUST* be unsigned */
-
-	/* Get the description of the Event */
-	if(cmd <= SIOCIWLAST) {
-		cmd_index = cmd - SIOCIWFIRST;
-		if(cmd_index < standard_ioctl_num)
-			descr = &(standard_ioctl[cmd_index]);
-	} else {
-		cmd_index = cmd - IWEVFIRST;
-		if(cmd_index < standard_event_num)
-			descr = &(standard_event[cmd_index]);
-	}
-	/* Don't accept unknown events */
-	if(descr == NULL) {
-		/* Note : we don't return an error to the driver, because
-		 * the driver would not know what to do about it. It can't
-		 * return an error to the user, because the event is not
-		 * initiated by a user request.
-		 * The best the driver could do is to log an error message.
-		 * We will do it ourselves instead...
-		 */
-		printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
-		       dev->name, cmd);
-		return;
-	}
-#ifdef WE_EVENT_DEBUG
-	printk(KERN_DEBUG "%s (WE) : Got event 0x%04X\n",
-	       dev->name, cmd);
-	printk(KERN_DEBUG "%s (WE) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens);
-#endif	/* WE_EVENT_DEBUG */
-
-	/* Check extra parameters and set extra_len */
-	if(descr->header_type == IW_HEADER_TYPE_POINT) {
-		/* Check if number of token fits within bounds */
-		if(wrqu->data.length > descr->max_tokens) {
-			printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
-			return;
-		}
-		if(wrqu->data.length < descr->min_tokens) {
-			printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
-			return;
-		}
-		/* Calculate extra_len - extra is NULL for restricted events */
-		if(extra != NULL)
-			extra_len = wrqu->data.length * descr->token_size;
-		/* Always at an offset in wrqu */
-		wrqu_off = IW_EV_POINT_OFF;
-#ifdef WE_EVENT_DEBUG
-		printk(KERN_DEBUG "%s (WE) : Event 0x%04X, tokens %d, extra_len %d\n", dev->name, cmd, wrqu->data.length, extra_len);
-#endif	/* WE_EVENT_DEBUG */
-	}
-
-	/* Total length of the event */
-	hdr_len = event_type_size[descr->header_type];
-	event_len = hdr_len + extra_len;
-
-#ifdef WE_EVENT_DEBUG
-	printk(KERN_DEBUG "%s (WE) : Event 0x%04X, hdr_len %d, wrqu_off %d, event_len %d\n", dev->name, cmd, hdr_len, wrqu_off, event_len);
-#endif	/* WE_EVENT_DEBUG */
-
-	/* Create temporary buffer to hold the event */
-	event = kmalloc(event_len, GFP_ATOMIC);
-	if(event == NULL)
-		return;
-
-	/* Fill event */
-	event->len = event_len;
-	event->cmd = cmd;
-	memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
-	if(extra != NULL)
-		memcpy(((char *) event) + hdr_len, extra, extra_len);
-
-#ifdef WE_EVENT_RTNETLINK
-	/* Send via the RtNetlink event channel */
-	rtmsg_iwinfo(dev, (char *) event, event_len);
-#endif	/* WE_EVENT_RTNETLINK */
-
-	/* Cleanup */
-	kfree(event);
-
-	return;		/* Always success, I guess ;-) */
-}
-
-/********************** ENHANCED IWSPY SUPPORT **********************/
-/*
- * In the old days, the driver was handling spy support all by itself.
- * Now, the driver can delegate this task to Wireless Extensions.
- * It needs to use those standard spy iw_handler in struct iw_handler_def,
- * push data to us via wireless_spy_update() and include struct iw_spy_data
- * in its private part (and export it in net_device->wireless_data->spy_data).
- * One of the main advantage of centralising spy support here is that
- * it becomes much easier to improve and extend it without having to touch
- * the drivers. One example is the addition of the Spy-Threshold events.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the pointer to the spy data in the driver.
- * Because this is called on the Rx path via wireless_spy_update(),
- * we want it to be efficient...
- */
-static inline struct iw_spy_data * get_spydata(struct net_device *dev)
-{
-	/* This is the new way */
-	if(dev->wireless_data)
-		return(dev->wireless_data->spy_data);
-	return NULL;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set Spy List
- */
-int iw_handler_set_spy(struct net_device *	dev,
-		       struct iw_request_info *	info,
-		       union iwreq_data *	wrqu,
-		       char *			extra)
-{
-	struct iw_spy_data *	spydata = get_spydata(dev);
-	struct sockaddr *	address = (struct sockaddr *) extra;
-
-	/* Make sure driver is not buggy or using the old API */
-	if(!spydata)
-		return -EOPNOTSUPP;
-
-	/* Disable spy collection while we copy the addresses.
-	 * While we copy addresses, any call to wireless_spy_update()
-	 * will NOP. This is OK, as anyway the addresses are changing. */
-	spydata->spy_number = 0;
-
-	/* We want to operate without locking, because wireless_spy_update()
-	 * most likely will happen in the interrupt handler, and therefore
-	 * have its own locking constraints and needs performance.
-	 * The rtnl_lock() make sure we don't race with the other iw_handlers.
-	 * This make sure wireless_spy_update() "see" that the spy list
-	 * is temporarily disabled. */
-	smp_wmb();
-
-	/* Are there are addresses to copy? */
-	if(wrqu->data.length > 0) {
-		int i;
-
-		/* Copy addresses */
-		for(i = 0; i < wrqu->data.length; i++)
-			memcpy(spydata->spy_address[i], address[i].sa_data,
-			       ETH_ALEN);
-		/* Reset stats */
-		memset(spydata->spy_stat, 0,
-		       sizeof(struct iw_quality) * IW_MAX_SPY);
-
-#ifdef WE_SPY_DEBUG
-		printk(KERN_DEBUG "iw_handler_set_spy() :  wireless_data %p, spydata %p, num %d\n", dev->wireless_data, spydata, wrqu->data.length);
-		for (i = 0; i < wrqu->data.length; i++)
-			printk(KERN_DEBUG
-			       "%02X:%02X:%02X:%02X:%02X:%02X \n",
-			       spydata->spy_address[i][0],
-			       spydata->spy_address[i][1],
-			       spydata->spy_address[i][2],
-			       spydata->spy_address[i][3],
-			       spydata->spy_address[i][4],
-			       spydata->spy_address[i][5]);
-#endif	/* WE_SPY_DEBUG */
-	}
-
-	/* Make sure above is updated before re-enabling */
-	smp_wmb();
-
-	/* Enable addresses */
-	spydata->spy_number = wrqu->data.length;
-
-	return 0;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get Spy List
- */
-int iw_handler_get_spy(struct net_device *	dev,
-		       struct iw_request_info *	info,
-		       union iwreq_data *	wrqu,
-		       char *			extra)
-{
-	struct iw_spy_data *	spydata = get_spydata(dev);
-	struct sockaddr *	address = (struct sockaddr *) extra;
-	int			i;
-
-	/* Make sure driver is not buggy or using the old API */
-	if(!spydata)
-		return -EOPNOTSUPP;
-
-	wrqu->data.length = spydata->spy_number;
-
-	/* Copy addresses. */
-	for(i = 0; i < spydata->spy_number; i++) 	{
-		memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN);
-		address[i].sa_family = AF_UNIX;
-	}
-	/* Copy stats to the user buffer (just after). */
-	if(spydata->spy_number > 0)
-		memcpy(extra  + (sizeof(struct sockaddr) *spydata->spy_number),
-		       spydata->spy_stat,
-		       sizeof(struct iw_quality) * spydata->spy_number);
-	/* Reset updated flags. */
-	for(i = 0; i < spydata->spy_number; i++)
-		spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED;
-	return 0;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set spy threshold
- */
-int iw_handler_set_thrspy(struct net_device *	dev,
-			  struct iw_request_info *info,
-			  union iwreq_data *	wrqu,
-			  char *		extra)
-{
-	struct iw_spy_data *	spydata = get_spydata(dev);
-	struct iw_thrspy *	threshold = (struct iw_thrspy *) extra;
-
-	/* Make sure driver is not buggy or using the old API */
-	if(!spydata)
-		return -EOPNOTSUPP;
-
-	/* Just do it */
-	memcpy(&(spydata->spy_thr_low), &(threshold->low),
-	       2 * sizeof(struct iw_quality));
-
-	/* Clear flag */
-	memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under));
-
-#ifdef WE_SPY_DEBUG
-	printk(KERN_DEBUG "iw_handler_set_thrspy() :  low %d ; high %d\n", spydata->spy_thr_low.level, spydata->spy_thr_high.level);
-#endif	/* WE_SPY_DEBUG */
-
-	return 0;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get spy threshold
- */
-int iw_handler_get_thrspy(struct net_device *	dev,
-			  struct iw_request_info *info,
-			  union iwreq_data *	wrqu,
-			  char *		extra)
-{
-	struct iw_spy_data *	spydata = get_spydata(dev);
-	struct iw_thrspy *	threshold = (struct iw_thrspy *) extra;
-
-	/* Make sure driver is not buggy or using the old API */
-	if(!spydata)
-		return -EOPNOTSUPP;
-
-	/* Just do it */
-	memcpy(&(threshold->low), &(spydata->spy_thr_low),
-	       2 * sizeof(struct iw_quality));
-
-	return 0;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Prepare and send a Spy Threshold event
- */
-static void iw_send_thrspy_event(struct net_device *	dev,
-				 struct iw_spy_data *	spydata,
-				 unsigned char *	address,
-				 struct iw_quality *	wstats)
-{
-	union iwreq_data	wrqu;
-	struct iw_thrspy	threshold;
-
-	/* Init */
-	wrqu.data.length = 1;
-	wrqu.data.flags = 0;
-	/* Copy address */
-	memcpy(threshold.addr.sa_data, address, ETH_ALEN);
-	threshold.addr.sa_family = ARPHRD_ETHER;
-	/* Copy stats */
-	memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality));
-	/* Copy also thresholds */
-	memcpy(&(threshold.low), &(spydata->spy_thr_low),
-	       2 * sizeof(struct iw_quality));
-
-#ifdef WE_SPY_DEBUG
-	printk(KERN_DEBUG "iw_send_thrspy_event() : address %02X:%02X:%02X:%02X:%02X:%02X, level %d, up = %d\n",
-	       threshold.addr.sa_data[0],
-	       threshold.addr.sa_data[1],
-	       threshold.addr.sa_data[2],
-	       threshold.addr.sa_data[3],
-	       threshold.addr.sa_data[4],
-	       threshold.addr.sa_data[5], threshold.qual.level);
-#endif	/* WE_SPY_DEBUG */
-
-	/* Send event to user space */
-	wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call for the driver to update the spy data.
- * For now, the spy data is a simple array. As the size of the array is
- * small, this is good enough. If we wanted to support larger number of
- * spy addresses, we should use something more efficient...
- */
-void wireless_spy_update(struct net_device *	dev,
-			 unsigned char *	address,
-			 struct iw_quality *	wstats)
-{
-	struct iw_spy_data *	spydata = get_spydata(dev);
-	int			i;
-	int			match = -1;
-
-	/* Make sure driver is not buggy or using the old API */
-	if(!spydata)
-		return;
-
-#ifdef WE_SPY_DEBUG
-	printk(KERN_DEBUG "wireless_spy_update() :  wireless_data %p, spydata %p, address %02X:%02X:%02X:%02X:%02X:%02X\n", dev->wireless_data, spydata, address[0], address[1], address[2], address[3], address[4], address[5]);
-#endif	/* WE_SPY_DEBUG */
-
-	/* Update all records that match */
-	for(i = 0; i < spydata->spy_number; i++)
-		if(!compare_ether_addr(address, spydata->spy_address[i])) {
-			memcpy(&(spydata->spy_stat[i]), wstats,
-			       sizeof(struct iw_quality));
-			match = i;
-		}
-
-	/* Generate an event if we cross the spy threshold.
-	 * To avoid event storms, we have a simple hysteresis : we generate
-	 * event only when we go under the low threshold or above the
-	 * high threshold. */
-	if(match >= 0) {
-		if(spydata->spy_thr_under[match]) {
-			if(wstats->level > spydata->spy_thr_high.level) {
-				spydata->spy_thr_under[match] = 0;
-				iw_send_thrspy_event(dev, spydata,
-						     address, wstats);
-			}
-		} else {
-			if(wstats->level < spydata->spy_thr_low.level) {
-				spydata->spy_thr_under[match] = 1;
-				iw_send_thrspy_event(dev, spydata,
-						     address, wstats);
-			}
-		}
-	}
-}
-
-EXPORT_SYMBOL(iw_handler_get_spy);
-EXPORT_SYMBOL(iw_handler_get_thrspy);
-EXPORT_SYMBOL(iw_handler_set_spy);
-EXPORT_SYMBOL(iw_handler_set_thrspy);
-EXPORT_SYMBOL(wireless_send_event);
-EXPORT_SYMBOL(wireless_spy_update);