Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  [AF_KEY]: suppress a warning for 64k pages.
  [TIPC]: Fix headercheck wrt. tipc_config.h
  [COMPAT]: Fix build on COMPAT platforms when CONFIG_NET is disabled.
  [CONNECTOR]: Fix a spurious kfree_skb() call
  [COMPAT]: Fix new dev_ifname32 returning -EFAULT
  [NET]: Fix incorrect sg_mark_end() calls.
  [IPVS]: Remove /proc/net/ip_vs_lblcr
  [IPV6]: remove duplicate call to proc_net_remove
  [NETNS]: fix net released by rcu callback
  [NET]: Fix free_netdev on register_netdev failure.
  [WAN]: fix drivers/net/wan/lmc/ compilation

12 files changed, 100 insertions, 158 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 02e7d8377c4..91ece48e127 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3496,6 +3496,60 @@ static void net_set_todo(struct net_device *dev)
 	spin_unlock(&net_todo_list_lock);
 }
 
+static void rollback_registered(struct net_device *dev)
+{
+	BUG_ON(dev_boot_phase);
+	ASSERT_RTNL();
+
+	/* Some devices call without registering for initialization unwind. */
+	if (dev->reg_state == NETREG_UNINITIALIZED) {
+		printk(KERN_DEBUG "unregister_netdevice: device %s/%p never "
+				  "was registered\n", dev->name, dev);
+
+		WARN_ON(1);
+		return;
+	}
+
+	BUG_ON(dev->reg_state != NETREG_REGISTERED);
+
+	/* If device is running, close it first. */
+	dev_close(dev);
+
+	/* And unlink it from device chain. */
+	unlist_netdevice(dev);
+
+	dev->reg_state = NETREG_UNREGISTERING;
+
+	synchronize_net();
+
+	/* Shutdown queueing discipline. */
+	dev_shutdown(dev);
+
+
+	/* Notify protocols, that we are about to destroy
+	   this device. They should clean all the things.
+	*/
+	call_netdevice_notifiers(NETDEV_UNREGISTER, dev);
+
+	/*
+	 *	Flush the unicast and multicast chains
+	 */
+	dev_addr_discard(dev);
+
+	if (dev->uninit)
+		dev->uninit(dev);
+
+	/* Notifier chain MUST detach us from master device. */
+	BUG_TRAP(!dev->master);
+
+	/* Remove entries from kobject tree */
+	netdev_unregister_kobject(dev);
+
+	synchronize_net();
+
+	dev_put(dev);
+}
+
 /**
  *	register_netdevice	- register a network device
  *	@dev: device to register
@@ -3633,8 +3687,10 @@ int register_netdevice(struct net_device *dev)
 	/* Notify protocols, that a new device appeared. */
 	ret = call_netdevice_notifiers(NETDEV_REGISTER, dev);
 	ret = notifier_to_errno(ret);
-	if (ret)
-		unregister_netdevice(dev);
+	if (ret) {
+		rollback_registered(dev);
+		dev->reg_state = NETREG_UNREGISTERED;
+	}
 
 out:
 	return ret;
@@ -3911,59 +3967,9 @@ void synchronize_net(void)
 
 void unregister_netdevice(struct net_device *dev)
 {
-	BUG_ON(dev_boot_phase);
-	ASSERT_RTNL();
-
-	/* Some devices call without registering for initialization unwind. */
-	if (dev->reg_state == NETREG_UNINITIALIZED) {
-		printk(KERN_DEBUG "unregister_netdevice: device %s/%p never "
-				  "was registered\n", dev->name, dev);
-
-		WARN_ON(1);
-		return;
-	}
-
-	BUG_ON(dev->reg_state != NETREG_REGISTERED);
-
-	/* If device is running, close it first. */
-	dev_close(dev);
-
-	/* And unlink it from device chain. */
-	unlist_netdevice(dev);
-
-	dev->reg_state = NETREG_UNREGISTERING;
-
-	synchronize_net();
-
-	/* Shutdown queueing discipline. */
-	dev_shutdown(dev);
-
-
-	/* Notify protocols, that we are about to destroy
-	   this device. They should clean all the things.
-	*/
-	call_netdevice_notifiers(NETDEV_UNREGISTER, dev);
-
-	/*
-	 *	Flush the unicast and multicast chains
-	 */
-	dev_addr_discard(dev);
-
-	if (dev->uninit)
-		dev->uninit(dev);
-
-	/* Notifier chain MUST detach us from master device. */
-	BUG_TRAP(!dev->master);
-
-	/* Remove entries from kobject tree */
-	netdev_unregister_kobject(dev);
-
+	rollback_registered(dev);
 	/* Finish processing unregister after unlock */
 	net_set_todo(dev);
-
-	synchronize_net();
-
-	dev_put(dev);
 }
 
 /**
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 6f71db8c442..662e6ea1cec 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -112,6 +112,8 @@ out_undo:
 		if (ops->exit)
 			ops->exit(net);
 	}
+
+	rcu_barrier();
 	goto out;
 }
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 573e1724019..64b50ff7a41 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2028,8 +2028,8 @@ void __init skb_init(void)
  *	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)
+static 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;
@@ -2078,7 +2078,8 @@ skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
 			if ((copy = end - offset) > 0) {
 				if (copy > len)
 					copy = len;
-				elt += skb_to_sgvec(list, sg+elt, offset - start, copy);
+				elt += __skb_to_sgvec(list, sg+elt, offset - start,
+						      copy);
 				if ((len -= copy) == 0)
 					return elt;
 				offset += copy;
@@ -2090,6 +2091,15 @@ skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
 	return elt;
 }
 
+int skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
+{
+	int nsg = __skb_to_sgvec(skb, sg, offset, len);
+
+	__sg_mark_end(&sg[nsg - 1]);
+
+	return nsg;
+}
+
 /**
  *	skb_cow_data - Check that a socket buffer's data buffers are writable
  *	@skb: The socket buffer to check.
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index cad4278025a..c31bccb9b52 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -111,9 +111,10 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 				goto unlock;
 		}
 		sg_init_table(sg, nfrags);
-		sg_mark_end(sg, skb_to_sgvec(skb, sg, esph->enc_data +
-						      esp->conf.ivlen -
-						      skb->data, clen));
+		skb_to_sgvec(skb, sg,
+			     esph->enc_data +
+			     esp->conf.ivlen -
+			     skb->data, clen);
 		err = crypto_blkcipher_encrypt(&desc, sg, sg, clen);
 		if (unlikely(sg != &esp->sgbuf[0]))
 			kfree(sg);
@@ -205,8 +206,9 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
 			goto out;
 	}
 	sg_init_table(sg, nfrags);
-	sg_mark_end(sg, skb_to_sgvec(skb, sg, sizeof(*esph) + esp->conf.ivlen,
-				     elen));
+	skb_to_sgvec(skb, sg,
+		     sizeof(*esph) + esp->conf.ivlen,
+		     elen);
 	err = crypto_blkcipher_decrypt(&desc, sg, sg, elen);
 	if (unlikely(sg != &esp->sgbuf[0]))
 		kfree(sg);
diff --git a/net/ipv4/ipvs/ip_vs_lblcr.c b/net/ipv4/ipvs/ip_vs_lblcr.c
index 6a1fec416ea..427b593c106 100644
--- a/net/ipv4/ipvs/ip_vs_lblcr.c
+++ b/net/ipv4/ipvs/ip_vs_lblcr.c
@@ -48,8 +48,6 @@
 /* for sysctl */
 #include <linux/fs.h>
 #include <linux/sysctl.h>
-/* for proc_net_create/proc_net_remove */
-#include <linux/proc_fs.h>
 #include <net/net_namespace.h>
 
 #include <net/ip_vs.h>
@@ -547,71 +545,6 @@ static void ip_vs_lblcr_check_expire(unsigned long data)
 	mod_timer(&tbl->periodic_timer, jiffies+CHECK_EXPIRE_INTERVAL);
 }
 
-
-#ifdef CONFIG_IP_VS_LBLCR_DEBUG
-static struct ip_vs_lblcr_table *lblcr_table_list;
-
-/*
- *	/proc/net/ip_vs_lblcr to display the mappings of
- *                  destination IP address <==> its serverSet
- */
-static int
-ip_vs_lblcr_getinfo(char *buffer, char **start, off_t offset, int length)
-{
-	off_t pos=0, begin;
-	int len=0, size;
-	struct ip_vs_lblcr_table *tbl;
-	unsigned long now = jiffies;
-	int i;
-	struct ip_vs_lblcr_entry *en;
-
-	tbl = lblcr_table_list;
-
-	size = sprintf(buffer, "LastTime Dest IP address  Server set\n");
-	pos += size;
-	len += size;
-
-	for (i=0; i<IP_VS_LBLCR_TAB_SIZE; i++) {
-		read_lock_bh(&tbl->lock);
-		list_for_each_entry(en, &tbl->bucket[i], list) {
-			char tbuf[16];
-			struct ip_vs_dest_list *d;
-
-			sprintf(tbuf, "%u.%u.%u.%u", NIPQUAD(en->addr));
-			size = sprintf(buffer+len, "%8lu %-16s ",
-				       now-en->lastuse, tbuf);
-
-			read_lock(&en->set.lock);
-			for (d=en->set.list; d!=NULL; d=d->next) {
-				size += sprintf(buffer+len+size,
-						"%u.%u.%u.%u ",
-						NIPQUAD(d->dest->addr));
-			}
-			read_unlock(&en->set.lock);
-			size += sprintf(buffer+len+size, "\n");
-			len += size;
-			pos += size;
-			if (pos <= offset)
-				len=0;
-			if (pos >= offset+length) {
-				read_unlock_bh(&tbl->lock);
-				goto done;
-			}
-		}
-		read_unlock_bh(&tbl->lock);
-	}
-
-  done:
-	begin = len - (pos - offset);
-	*start = buffer + begin;
-	len -= begin;
-	if(len>length)
-		len = length;
-	return len;
-}
-#endif
-
-
 static int ip_vs_lblcr_init_svc(struct ip_vs_service *svc)
 {
 	int i;
@@ -650,9 +583,6 @@ static int ip_vs_lblcr_init_svc(struct ip_vs_service *svc)
 	tbl->periodic_timer.expires = jiffies+CHECK_EXPIRE_INTERVAL;
 	add_timer(&tbl->periodic_timer);
 
-#ifdef CONFIG_IP_VS_LBLCR_DEBUG
-	lblcr_table_list = tbl;
-#endif
 	return 0;
 }
 
@@ -843,18 +773,12 @@ static int __init ip_vs_lblcr_init(void)
 {
 	INIT_LIST_HEAD(&ip_vs_lblcr_scheduler.n_list);
 	sysctl_header = register_sysctl_table(lblcr_root_table);
-#ifdef CONFIG_IP_VS_LBLCR_DEBUG
-	proc_net_create(&init_net, "ip_vs_lblcr", 0, ip_vs_lblcr_getinfo);
-#endif
 	return register_ip_vs_scheduler(&ip_vs_lblcr_scheduler);
 }
 
 
 static void __exit ip_vs_lblcr_cleanup(void)
 {
-#ifdef CONFIG_IP_VS_LBLCR_DEBUG
-	proc_net_remove(&init_net, "ip_vs_lblcr");
-#endif
 	unregister_sysctl_table(sysctl_header);
 	unregister_ip_vs_scheduler(&ip_vs_lblcr_scheduler);
 }
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index d3d8d5dfcee..eec02b29ffc 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1083,7 +1083,7 @@ static int tcp_v4_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,
 	sg_set_buf(&sg[block++], key->key, key->keylen);
 	nbytes += key->keylen;
 
-	sg_mark_end(sg, block);
+	__sg_mark_end(&sg[block - 1]);
 
 	/* Now store the Hash into the packet */
 	err = crypto_hash_init(desc);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 348bd8d0611..1bd8d818f8e 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4288,8 +4288,4 @@ void __exit addrconf_cleanup(void)
 	del_timer(&addr_chk_timer);
 
 	rtnl_unlock();
-
-#ifdef CONFIG_PROC_FS
-	proc_net_remove(&init_net, "if_inet6");
-#endif
 }
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index ab17b5e6235..7db66f10e00 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -110,9 +110,10 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
 				goto unlock;
 		}
 		sg_init_table(sg, nfrags);
-		sg_mark_end(sg, skb_to_sgvec(skb, sg, esph->enc_data +
-						      esp->conf.ivlen -
-						      skb->data, clen));
+		skb_to_sgvec(skb, sg,
+			     esph->enc_data +
+			     esp->conf.ivlen -
+			     skb->data, clen);
 		err = crypto_blkcipher_encrypt(&desc, sg, sg, clen);
 		if (unlikely(sg != &esp->sgbuf[0]))
 			kfree(sg);
@@ -209,9 +210,9 @@ static int esp6_input(struct xfrm_state *x, struct sk_buff *skb)
 			}
 		}
 		sg_init_table(sg, nfrags);
-		sg_mark_end(sg, skb_to_sgvec(skb, sg,
-					     sizeof(*esph) + esp->conf.ivlen,
-					     elen));
+		skb_to_sgvec(skb, sg,
+			     sizeof(*esph) + esp->conf.ivlen,
+			     elen);
 		ret = crypto_blkcipher_decrypt(&desc, sg, sg, elen);
 		if (unlikely(sg != &esp->sgbuf[0]))
 			kfree(sg);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index f1523b82cac..4b903288095 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -781,7 +781,7 @@ static int tcp_v6_do_calc_md5_hash(char *md5_hash, struct tcp_md5sig_key *key,
 	sg_set_buf(&sg[block++], key->key, key->keylen);
 	nbytes += key->keylen;
 
-	sg_mark_end(sg, block);
+	__sg_mark_end(&sg[block - 1]);
 
 	/* Now store the hash into the packet */
 	err = crypto_hash_init(desc);
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 7969f8a716d..266f112c38c 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -395,9 +395,9 @@ static inline int pfkey_sec_ctx_len(struct sadb_x_sec_ctx *sec_ctx)
 static inline int verify_sec_ctx_len(void *p)
 {
 	struct sadb_x_sec_ctx *sec_ctx = (struct sadb_x_sec_ctx *)p;
-	int len;
+	int len = sec_ctx->sadb_x_ctx_len;
 
-	if (sec_ctx->sadb_x_ctx_len > PAGE_SIZE)
+	if (len > PAGE_SIZE)
 		return -EINVAL;
 
 	len = pfkey_sec_ctx_len(sec_ctx);
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index eebefb6ef13..c387cf68a08 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -237,7 +237,8 @@ static int rxkad_secure_packet_encrypt(const struct rxrpc_call *call,
 	len = data_size + call->conn->size_align - 1;
 	len &= ~(call->conn->size_align - 1);
 
-	sg_init_table(sg, skb_to_sgvec(skb, sg, 0, len));
+	sg_init_table(sg, nsg);
+	skb_to_sgvec(skb, sg, 0, len);
 	crypto_blkcipher_encrypt_iv(&desc, sg, sg, len);
 
 	_leave(" = 0");
@@ -344,7 +345,7 @@ static int rxkad_verify_packet_auth(const struct rxrpc_call *call,
 		goto nomem;
 
 	sg_init_table(sg, nsg);
-	sg_mark_end(sg, skb_to_sgvec(skb, sg, 0, 8));
+	skb_to_sgvec(skb, sg, 0, 8);
 
 	/* start the decryption afresh */
 	memset(&iv, 0, sizeof(iv));
@@ -426,7 +427,7 @@ static int rxkad_verify_packet_encrypt(const struct rxrpc_call *call,
 	}
 
 	sg_init_table(sg, nsg);
-	sg_mark_end(sg, skb_to_sgvec(skb, sg, 0, skb->len));
+	skb_to_sgvec(skb, sg, 0, skb->len);
 
 	/* decrypt from the session key */
 	payload = call->conn->key->payload.data;
@@ -701,7 +702,7 @@ static void rxkad_sg_set_buf2(struct scatterlist sg[2],
 		nsg++;
 	}
 
-	sg_mark_end(sg, nsg);
+	__sg_mark_end(&sg[nsg - 1]);
 
 	ASSERTCMP(sg[0].length + sg[1].length, ==, buflen);
 }
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index 91cd8f0d1e1..ab7cbd6575c 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -211,8 +211,8 @@ encryptor(struct scatterlist *sg, void *data)
 	if (thislen == 0)
 		return 0;
 
-	sg_mark_end(desc->infrags, desc->fragno);
-	sg_mark_end(desc->outfrags, desc->fragno);
+	__sg_mark_end(&desc->infrags[desc->fragno - 1]);
+	__sg_mark_end(&desc->outfrags[desc->fragno - 1]);
 
 	ret = crypto_blkcipher_encrypt_iv(&desc->desc, desc->outfrags,
 					  desc->infrags, thislen);
@@ -293,7 +293,7 @@ decryptor(struct scatterlist *sg, void *data)
 	if (thislen == 0)
 		return 0;
 
-	sg_mark_end(desc->frags, desc->fragno);
+	__sg_mark_end(&desc->frags[desc->fragno - 1]);
 
 	ret = crypto_blkcipher_decrypt_iv(&desc->desc, desc->frags,
 					  desc->frags, thislen);