Merge branch 'hid-suspend' into picolcd

54 files changed, 153 insertions, 42 deletions

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 33b7dffa7732..f71357422380 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -86,6 +86,7 @@
 #include <linux/poll.h>
 #include <linux/netfilter_ipv4.h>
 #include <linux/random.h>
+#include <linux/slab.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -530,6 +531,8 @@ int inet_dgram_connect(struct socket *sock, struct sockaddr * uaddr,
 {
 	struct sock *sk = sock->sk;
 
+	if (addr_len < sizeof(uaddr->sa_family))
+		return -EINVAL;
 	if (uaddr->sa_family == AF_UNSPEC)
 		return sk->sk_prot->disconnect(sk, flags);
 
@@ -573,6 +576,9 @@ int inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
 	int err;
 	long timeo;
 
+	if (addr_len < sizeof(uaddr->sa_family))
+		return -EINVAL;
+
 	lock_sock(sk);
 
 	if (uaddr->sa_family == AF_UNSPEC) {
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 987b47dc69ad..880a5ec6dce0 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -1,6 +1,7 @@
 #include <crypto/hash.h>
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <net/ip.h>
 #include <net/xfrm.h>
 #include <net/ah.h>
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index c4dd13542802..6e747065c202 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -98,6 +98,7 @@
 #include <linux/net.h>
 #include <linux/rcupdate.h>
 #include <linux/jhash.h>
+#include <linux/slab.h>
 #ifdef CONFIG_SYSCTL
 #include <linux/sysctl.h>
 #endif
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 1e029dc75455..c97cd9ff697e 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -44,6 +44,7 @@
 #include <linux/string.h>
 #include <linux/jhash.h>
 #include <linux/audit.h>
+#include <linux/slab.h>
 #include <net/ip.h>
 #include <net/icmp.h>
 #include <net/tcp.h>
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 51ca946e3392..90e3d6379a42 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -50,6 +50,7 @@
 #include <linux/notifier.h>
 #include <linux/inetdevice.h>
 #include <linux/igmp.h>
+#include <linux/slab.h>
 #ifdef CONFIG_SYSCTL
 #include <linux/sysctl.h>
 #endif
@@ -1194,7 +1195,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
 		hlist_for_each_entry_rcu(dev, node, head, index_hlist) {
 			if (idx < s_idx)
 				goto cont;
-			if (idx > s_idx)
+			if (h > s_h || idx > s_idx)
 				s_ip_idx = 0;
 			in_dev = __in_dev_get_rcu(dev);
 			if (!in_dev)
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 9b3e28ed5240..4f0ed458c883 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -34,6 +34,7 @@
 #include <linux/skbuff.h>
 #include <linux/init.h>
 #include <linux/list.h>
+#include <linux/slab.h>
 
 #include <net/ip.h>
 #include <net/protocol.h>
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 14972017b9c2..4ed7e0dea1bc 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -32,6 +32,7 @@
 #include <linux/skbuff.h>
 #include <linux/netlink.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <net/net_namespace.h>
 #include <net/ip.h>
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 1af0ea0fb6a2..20f09c5b31e8 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -32,6 +32,7 @@
 #include <linux/proc_fs.h>
 #include <linux/skbuff.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <net/arp.h>
 #include <net/ip.h>
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index af5d89792860..59a838795e3e 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -71,6 +71,7 @@
 #include <linux/netlink.h>
 #include <linux/init.h>
 #include <linux/list.h>
+#include <linux/slab.h>
 #include <net/net_namespace.h>
 #include <net/ip.h>
 #include <net/protocol.h>
@@ -961,7 +962,9 @@ fib_find_node(struct trie *t, u32 key)
 	struct node *n;
 
 	pos = 0;
-	n = rcu_dereference(t->trie);
+	n = rcu_dereference_check(t->trie,
+				  rcu_read_lock_held() ||
+				  lockdep_rtnl_is_held());
 
 	while (n != NULL &&  NODE_TYPE(n) == T_TNODE) {
 		tn = (struct tnode *) n;
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 4b4c2bcd15db..ac4dec132735 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -74,6 +74,7 @@
 #include <linux/netdevice.h>
 #include <linux/string.h>
 #include <linux/netfilter_ipv4.h>
+#include <linux/slab.h>
 #include <net/snmp.h>
 #include <net/ip.h>
 #include <net/route.h>
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 63bf298ca109..15d3eeda92f5 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -71,6 +71,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
 #include <linux/types.h>
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 1aaa8110d84b..e5fa2ddce320 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/fcntl.h>
 #include <linux/random.h>
+#include <linux/slab.h>
 #include <linux/cache.h>
 #include <linux/init.h>
 #include <linux/time.h>
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index eaf3e2c8646a..a2ca6aed763b 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -19,6 +19,7 @@
 #include <linux/random.h>
 #include <linux/skbuff.h>
 #include <linux/rtnetlink.h>
+#include <linux/slab.h>
 
 #include <net/inet_frag.h>
 
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index cc94cc2d8b2d..c5af909cf701 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -10,6 +10,7 @@
 
 #include <linux/kernel.h>
 #include <linux/kmemcheck.h>
+#include <linux/slab.h>
 #include <net/inet_hashtables.h>
 #include <net/inet_timewait_sock.h>
 #include <net/ip.h>
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index a2991bc8e32e..af10942b326c 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -25,6 +25,7 @@
 #include <linux/ip.h>
 #include <linux/icmp.h>
 #include <linux/netdevice.h>
+#include <linux/slab.h>
 #include <net/sock.h>
 #include <net/ip.h>
 #include <net/tcp.h>
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index b59430bc041c..75347ea70ea0 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -32,6 +32,7 @@
 #include <linux/netdevice.h>
 #include <linux/jhash.h>
 #include <linux/random.h>
+#include <linux/slab.h>
 #include <net/route.h>
 #include <net/dst.h>
 #include <net/sock.h>
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index f47c9f76754b..fe381d12ecdd 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
@@ -810,11 +811,13 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 			tunnel->err_count = 0;
 	}
 
-	max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen;
+	max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen + rt->u.dst.header_len;
 
 	if (skb_headroom(skb) < max_headroom || skb_shared(skb)||
 	    (skb_cloned(skb) && !skb_clone_writable(skb, 0))) {
 		struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom);
+		if (max_headroom > dev->needed_headroom)
+			dev->needed_headroom = max_headroom;
 		if (!new_skb) {
 			ip_rt_put(rt);
 			txq->tx_dropped++;
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index c29de9879fda..f8ab7a380d4a 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -119,6 +119,7 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/errno.h>
+#include <linux/slab.h>
 
 #include <linux/net.h>
 #include <linux/socket.h>
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 94bf105ef3c9..4c09a31fd140 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -11,6 +11,7 @@
 
 #include <linux/capability.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/types.h>
 #include <asm/uaccess.h>
 #include <linux/skbuff.h>
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 3451799e3dbf..c65f18e0936e 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -51,6 +51,7 @@
 #include <linux/string.h>
 #include <linux/errno.h>
 #include <linux/highmem.h>
+#include <linux/slab.h>
 
 #include <linux/socket.h>
 #include <linux/sockios.h>
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 644dc43a55de..1e64dabbd232 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -23,6 +23,7 @@
 #include <linux/icmp.h>
 #include <linux/inetdevice.h>
 #include <linux/netdevice.h>
+#include <linux/slab.h>
 #include <net/sock.h>
 #include <net/ip.h>
 #include <net/icmp.h>
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 678909281648..067ce9e043dc 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -53,6 +53,7 @@
 #include <linux/root_dev.h>
 #include <linux/delay.h>
 #include <linux/nfs_fs.h>
+#include <linux/slab.h>
 #include <net/net_namespace.h>
 #include <net/arp.h>
 #include <net/ip.h>
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 2f302d3ac9a3..0b27b14dcc9d 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -95,6 +95,7 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 8582e12e4a62..9d4f6d1340a4 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -47,6 +47,7 @@
 #include <linux/mroute.h>
 #include <linux/init.h>
 #include <linux/if_ether.h>
+#include <linux/slab.h>
 #include <net/net_namespace.h>
 #include <net/ip.h>
 #include <net/protocol.h>
@@ -802,6 +803,9 @@ static int ipmr_mfc_add(struct net *net, struct mfcctl *mfc, int mrtsock)
 	int line;
 	struct mfc_cache *uc, *c, **cp;
 
+	if (mfc->mfcc_parent >= MAXVIFS)
+		return -ENFILE;
+
 	line = MFC_HASH(mfc->mfcc_mcastgrp.s_addr, mfc->mfcc_origin.s_addr);
 
 	for (cp = &net->ipv4.mfc_cache_array[line];
@@ -1613,17 +1617,20 @@ ipmr_fill_mroute(struct sk_buff *skb, struct mfc_cache *c, struct rtmsg *rtm)
 	int ct;
 	struct rtnexthop *nhp;
 	struct net *net = mfc_net(c);
-	struct net_device *dev = net->ipv4.vif_table[c->mfc_parent].dev;
 	u8 *b = skb_tail_pointer(skb);
 	struct rtattr *mp_head;
 
-	if (dev)
-		RTA_PUT(skb, RTA_IIF, 4, &dev->ifindex);
+	/* If cache is unresolved, don't try to parse IIF and OIF */
+	if (c->mfc_parent > MAXVIFS)
+		return -ENOENT;
+
+	if (VIF_EXISTS(net, c->mfc_parent))
+		RTA_PUT(skb, RTA_IIF, 4, &net->ipv4.vif_table[c->mfc_parent].dev->ifindex);
 
 	mp_head = (struct rtattr *)skb_put(skb, RTA_LENGTH(0));
 
 	for (ct = c->mfc_un.res.minvif; ct < c->mfc_un.res.maxvif; ct++) {
-		if (c->mfc_un.res.ttls[ct] < 255) {
+		if (VIF_EXISTS(net, ct) && c->mfc_un.res.ttls[ct] < 255) {
 			if (skb_tailroom(skb) < RTA_ALIGN(RTA_ALIGN(sizeof(*nhp)) + 4))
 				goto rtattr_failure;
 			nhp = (struct rtnexthop *)skb_put(skb, RTA_ALIGN(sizeof(*nhp)));
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index c14623fc4d5e..82fb43c5c59e 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -4,6 +4,7 @@
 #include <linux/netfilter_ipv4.h>
 #include <linux/ip.h>
 #include <linux/skbuff.h>
+#include <linux/gfp.h>
 #include <net/route.h>
 #include <net/xfrm.h>
 #include <net/ip.h>
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index bfe26f32b930..79ca5e70d497 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_arp/arp_tables.h>
+#include <linux/slab.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 2855f1f38cbc..e2787048aa0a 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -26,6 +26,7 @@
 #include <linux/security.h>
 #include <linux/net.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 #include <net/net_namespace.h>
 #include <net/sock.h>
 #include <net/route.h>
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 0886f96c736b..ab828400ed71 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -14,6 +14,7 @@
 #include <linux/jhash.h>
 #include <linux/bitops.h>
 #include <linux/skbuff.h>
+#include <linux/slab.h>
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/udp.h>
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 5113b8f1a379..a0e8bcf04159 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -12,6 +12,7 @@
 
 #include <linux/module.h>
 #include <linux/skbuff.h>
+#include <linux/slab.h>
 #include <linux/ip.h>
 #include <linux/udp.h>
 #include <linux/icmp.h>
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index 09a5d3f7cc41..0dbe697f164f 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -33,6 +33,7 @@
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/socket.h>
+#include <linux/slab.h>
 #include <linux/skbuff.h>
 #include <linux/kernel.h>
 #include <linux/timer.h>
diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c
index c8dc9800d620..55392466daa4 100644
--- a/net/ipv4/netfilter/iptable_filter.c
+++ b/net/ipv4/netfilter/iptable_filter.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/slab.h>
 #include <net/ip.h>
 
 MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index b9b83464cbf4..294a2a32f293 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/net/ipv4/netfilter/iptable_mangle.c
@@ -12,6 +12,7 @@
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
+#include <linux/slab.h>
 #include <net/sock.h>
 #include <net/route.h>
 #include <linux/ip.h>
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index 06fb9d11953c..07fb710cd722 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -5,6 +5,7 @@
  */
 #include <linux/module.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/slab.h>
 #include <net/ip.h>
 
 #define RAW_VALID_HOOKS ((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT))
diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c
index cce2f64e6f21..be45bdc4c602 100644
--- a/net/ipv4/netfilter/iptable_security.c
+++ b/net/ipv4/netfilter/iptable_security.c
@@ -17,6 +17,7 @@
  */
 #include <linux/module.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/slab.h>
 #include <net/ip.h>
 
 MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 4595281c2863..4f8bddb760c9 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -12,6 +12,7 @@
 #include <linux/types.h>
 #include <linux/timer.h>
 #include <linux/skbuff.h>
+#include <linux/gfp.h>
 #include <net/checksum.h>
 #include <net/icmp.h>
 #include <net/ip.h>
diff --git a/net/ipv4/netfilter/nf_nat_helper.c b/net/ipv4/netfilter/nf_nat_helper.c
index 4b6af4bb1f50..4a0c6b548eee 100644
--- a/net/ipv4/netfilter/nf_nat_helper.c
+++ b/net/ipv4/netfilter/nf_nat_helper.c
@@ -8,6 +8,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/module.h>
+#include <linux/gfp.h>
 #include <linux/kmod.h>
 #include <linux/types.h>
 #include <linux/timer.h>
diff --git a/net/ipv4/netfilter/nf_nat_rule.c b/net/ipv4/netfilter/nf_nat_rule.c
index ab74cc0535e2..26de2c1f7fab 100644
--- a/net/ipv4/netfilter/nf_nat_rule.c
+++ b/net/ipv4/netfilter/nf_nat_rule.c
@@ -15,6 +15,7 @@
 #include <linux/kmod.h>
 #include <linux/skbuff.h>
 #include <linux/proc_fs.h>
+#include <linux/slab.h>
 #include <net/checksum.h>
 #include <net/route.h>
 #include <linux/bitops.h>
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c b/net/ipv4/netfilter/nf_nat_snmp_basic.c
index 0b9c7ce3d6c5..4d85b6e55f29 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c
@@ -43,6 +43,7 @@
 #include <linux/moduleparam.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <linux/udp.h>
diff --git a/net/ipv4/netfilter/nf_nat_standalone.c b/net/ipv4/netfilter/nf_nat_standalone.c
index 5678e9562c15..c39c9cf6bee6 100644
--- a/net/ipv4/netfilter/nf_nat_standalone.c
+++ b/net/ipv4/netfilter/nf_nat_standalone.c
@@ -7,6 +7,7 @@
  */
 #include <linux/types.h>
 #include <linux/icmp.h>
+#include <linux/gfp.h>
 #include <linux/ip.h>
 #include <linux/netfilter.h>
 #include <linux/netfilter_ipv4.h>
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index ce154b47f1da..cc6f097fbd5f 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -60,7 +60,6 @@
 #include <net/net_namespace.h>
 #include <net/dst.h>
 #include <net/sock.h>
-#include <linux/gfp.h>
 #include <linux/ip.h>
 #include <linux/net.h>
 #include <net/ip.h>
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index a770df2493d2..cb562fdd9b9a 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -90,6 +90,7 @@
 #include <linux/jhash.h>
 #include <linux/rcupdate.h>
 #include <linux/times.h>
+#include <linux/slab.h>
 #include <net/dst.h>
 #include <net/net_namespace.h>
 #include <net/protocol.h>
@@ -1097,7 +1098,7 @@ static int slow_chain_length(const struct rtable *head)
 }
 
 static int rt_intern_hash(unsigned hash, struct rtable *rt,
-			  struct rtable **rp, struct sk_buff *skb)
+			  struct rtable **rp, struct sk_buff *skb, int ifindex)
 {
 	struct rtable	*rth, **rthp;
 	unsigned long	now;
@@ -1212,11 +1213,16 @@ restart:
 		    slow_chain_length(rt_hash_table[hash].chain) > rt_chain_length_max) {
 			struct net *net = dev_net(rt->u.dst.dev);
 			int num = ++net->ipv4.current_rt_cache_rebuild_count;
-			if (!rt_caching(dev_net(rt->u.dst.dev))) {
+			if (!rt_caching(net)) {
 				printk(KERN_WARNING "%s: %d rebuilds is over limit, route caching disabled\n",
 					rt->u.dst.dev->name, num);
 			}
-			rt_emergency_hash_rebuild(dev_net(rt->u.dst.dev));
+			rt_emergency_hash_rebuild(net);
+			spin_unlock_bh(rt_hash_lock_addr(hash));
+
+			hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src,
+					ifindex, rt_genid(net));
+			goto restart;
 		}
 	}
 
@@ -1441,7 +1447,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 					dev_hold(rt->u.dst.dev);
 				if (rt->idev)
 					in_dev_hold(rt->idev);
-				rt->u.dst.obsolete	= 0;
+				rt->u.dst.obsolete	= -1;
 				rt->u.dst.lastuse	= jiffies;
 				rt->u.dst.path		= &rt->u.dst;
 				rt->u.dst.neighbour	= NULL;
@@ -1477,7 +1483,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
 							&netevent);
 
 				rt_del(hash, rth);
-				if (!rt_intern_hash(hash, rt, &rt, NULL))
+				if (!rt_intern_hash(hash, rt, &rt, NULL, rt->fl.oif))
 					ip_rt_put(rt);
 				goto do_next;
 			}
@@ -1506,11 +1512,12 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 	struct dst_entry *ret = dst;
 
 	if (rt) {
-		if (dst->obsolete) {
+		if (dst->obsolete > 0) {
 			ip_rt_put(rt);
 			ret = NULL;
 		} else if ((rt->rt_flags & RTCF_REDIRECTED) ||
-			   rt->u.dst.expires) {
+			   (rt->u.dst.expires &&
+			    time_after_eq(jiffies, rt->u.dst.expires))) {
 			unsigned hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src,
 						rt->fl.oif,
 						rt_genid(dev_net(dst->dev)));
@@ -1726,7 +1733,9 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu)
 
 static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie)
 {
-	return NULL;
+	if (rt_is_expired((struct rtable *)dst))
+		return NULL;
+	return dst;
 }
 
 static void ipv4_dst_destroy(struct dst_entry *dst)
@@ -1888,7 +1897,8 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	if (!rth)
 		goto e_nobufs;
 
-	rth->u.dst.output= ip_rt_bug;
+	rth->u.dst.output = ip_rt_bug;
+	rth->u.dst.obsolete = -1;
 
 	atomic_set(&rth->u.dst.__refcnt, 1);
 	rth->u.dst.flags= DST_HOST;
@@ -1927,7 +1937,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
 	in_dev_put(in_dev);
 	hash = rt_hash(daddr, saddr, dev->ifindex, rt_genid(dev_net(dev)));
-	return rt_intern_hash(hash, rth, NULL, skb);
+	return rt_intern_hash(hash, rth, NULL, skb, dev->ifindex);
 
 e_nobufs:
 	in_dev_put(in_dev);
@@ -2054,6 +2064,7 @@ static int __mkroute_input(struct sk_buff *skb,
 	rth->fl.oif 	= 0;
 	rth->rt_spec_dst= spec_dst;
 
+	rth->u.dst.obsolete = -1;
 	rth->u.dst.input = ip_forward;
 	rth->u.dst.output = ip_output;
 	rth->rt_genid = rt_genid(dev_net(rth->u.dst.dev));
@@ -2093,7 +2104,7 @@ static int ip_mkroute_input(struct sk_buff *skb,
 	/* put it into the cache */
 	hash = rt_hash(daddr, saddr, fl->iif,
 		       rt_genid(dev_net(rth->u.dst.dev)));
-	return rt_intern_hash(hash, rth, NULL, skb);
+	return rt_intern_hash(hash, rth, NULL, skb, fl->iif);
 }
 
 /*
@@ -2218,6 +2229,7 @@ local_input:
 		goto e_nobufs;
 
 	rth->u.dst.output= ip_rt_bug;
+	rth->u.dst.obsolete = -1;
 	rth->rt_genid = rt_genid(net);
 
 	atomic_set(&rth->u.dst.__refcnt, 1);
@@ -2249,7 +2261,7 @@ local_input:
 	}
 	rth->rt_type	= res.type;
 	hash = rt_hash(daddr, saddr, fl.iif, rt_genid(net));
-	err = rt_intern_hash(hash, rth, NULL, skb);
+	err = rt_intern_hash(hash, rth, NULL, skb, fl.iif);
 	goto done;
 
 no_route:
@@ -2444,6 +2456,7 @@ static int __mkroute_output(struct rtable **result,
 	rth->rt_spec_dst= fl->fl4_src;
 
 	rth->u.dst.output=ip_output;
+	rth->u.dst.obsolete = -1;
 	rth->rt_genid = rt_genid(dev_net(dev_out));
 
 	RT_CACHE_STAT_INC(out_slow_tot);
@@ -2495,7 +2508,7 @@ static int ip_mkroute_output(struct rtable **rp,
 	if (err == 0) {
 		hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src, oldflp->oif,
 			       rt_genid(dev_net(dev_out)));
-		err = rt_intern_hash(hash, rth, rp, NULL);
+		err = rt_intern_hash(hash, rth, rp, NULL, oldflp->oif);
 	}
 
 	return err;
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index c1bc074f61b7..1cd5c15174b8 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -12,6 +12,7 @@
 #include <linux/inetdevice.h>
 #include <linux/seqlock.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <net/snmp.h>
 #include <net/icmp.h>
 #include <net/ip.h>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 5901010fad55..0f8caf64caa3 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -265,6 +265,7 @@
 #include <linux/err.h>
 #include <linux/crypto.h>
 #include <linux/time.h>
+#include <linux/slab.h>
 
 #include <net/icmp.h>
 #include <net/tcp.h>
@@ -429,7 +430,7 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
 		if (tp->urg_seq == tp->copied_seq &&
 		    !sock_flag(sk, SOCK_URGINLINE) &&
 		    tp->urg_data)
-			target--;
+			target++;
 
 		/* Potential race condition. If read of tp below will
 		 * escape above sk->sk_state, we can be illegally awaken
@@ -1254,6 +1255,39 @@ static void tcp_prequeue_process(struct sock *sk)
 	tp->ucopy.memory = 0;
 }
 
+#ifdef CONFIG_NET_DMA
+static void tcp_service_net_dma(struct sock *sk, bool wait)
+{
+	dma_cookie_t done, used;
+	dma_cookie_t last_issued;
+	struct tcp_sock *tp = tcp_sk(sk);
+
+	if (!tp->ucopy.dma_chan)
+		return;
+
+	last_issued = tp->ucopy.dma_cookie;
+	dma_async_memcpy_issue_pending(tp->ucopy.dma_chan);
+
+	do {
+		if (dma_async_memcpy_complete(tp->ucopy.dma_chan,
+					      last_issued, &done,
+					      &used) == DMA_SUCCESS) {
+			/* Safe to free early-copied skbs now */
+			__skb_queue_purge(&sk->sk_async_wait_queue);
+			break;
+		} else {
+			struct sk_buff *skb;
+			while ((skb = skb_peek(&sk->sk_async_wait_queue)) &&
+			       (dma_async_is_complete(skb->dma_cookie, done,
+						      used) == DMA_SUCCESS)) {
+				__skb_dequeue(&sk->sk_async_wait_queue);
+				kfree_skb(skb);
+			}
+		}
+	} while (wait);
+}
+#endif
+
 static inline struct sk_buff *tcp_recv_skb(struct sock *sk, u32 seq, u32 *off)
 {
 	struct sk_buff *skb;
@@ -1335,6 +1369,7 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
 		sk_eat_skb(sk, skb, 0);
 		if (!desc->count)
 			break;
+		tp->copied_seq = seq;
 	}
 	tp->copied_seq = seq;
 
@@ -1546,6 +1581,10 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 			/* __ Set realtime policy in scheduler __ */
 		}
 
+#ifdef CONFIG_NET_DMA
+		if (tp->ucopy.dma_chan)
+			dma_async_memcpy_issue_pending(tp->ucopy.dma_chan);
+#endif
 		if (copied >= target) {
 			/* Do not sleep, just process backlog. */
 			release_sock(sk);
@@ -1554,6 +1593,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 			sk_wait_data(sk, &timeo);
 
 #ifdef CONFIG_NET_DMA
+		tcp_service_net_dma(sk, false);  /* Don't block */
 		tp->ucopy.wakeup = 0;
 #endif
 
@@ -1633,6 +1673,9 @@ do_prequeue:
 						copied = -EFAULT;
 					break;
 				}
+
+				dma_async_memcpy_issue_pending(tp->ucopy.dma_chan);
+
 				if ((offset + used) == skb->len)
 					copied_early = 1;
 
@@ -1702,27 +1745,9 @@ skip_copy:
 	}
 
 #ifdef CONFIG_NET_DMA
-	if (tp->ucopy.dma_chan) {
-		dma_cookie_t done, used;
-
-		dma_async_memcpy_issue_pending(tp->ucopy.dma_chan);
-
-		while (dma_async_memcpy_complete(tp->ucopy.dma_chan,
-						 tp->ucopy.dma_cookie, &done,
-						 &used) == DMA_IN_PROGRESS) {
-			/* do partial cleanup of sk_async_wait_queue */
-			while ((skb = skb_peek(&sk->sk_async_wait_queue)) &&
-			       (dma_async_is_complete(skb->dma_cookie, done,
-						      used) == DMA_SUCCESS)) {
-				__skb_dequeue(&sk->sk_async_wait_queue);
-				kfree_skb(skb);
-			}
-		}
+	tcp_service_net_dma(sk, true);  /* Wait for queue to drain */
+	tp->ucopy.dma_chan = NULL;
 
-		/* Safe to free early-copied skbs now */
-		__skb_queue_purge(&sk->sk_async_wait_queue);
-		tp->ucopy.dma_chan = NULL;
-	}
 	if (tp->ucopy.pinned_list) {
 		dma_unpin_iovec_pages(tp->ucopy.pinned_list);
 		tp->ucopy.pinned_list = NULL;
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 6428b342b164..0ec9bd0ae94f 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -10,6 +10,7 @@
 #include <linux/mm.h>
 #include <linux/types.h>
 #include <linux/list.h>
+#include <linux/gfp.h>
 #include <net/tcp.h>
 
 int sysctl_tcp_max_ssthresh = 0;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 788851ca8c5d..f240f57b2199 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -62,6 +62,7 @@
  */
 
 #include <linux/mm.h>
+#include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/sysctl.h>
 #include <linux/kernel.h>
@@ -2511,6 +2512,9 @@ static void tcp_mark_head_lost(struct sock *sk, int packets)
 	int err;
 	unsigned int mss;
 
+	if (packets == 0)
+		return;
+
 	WARN_ON(packets > tp->packets_out);
 	if (tp->lost_skb_hint) {
 		skb = tp->lost_skb_hint;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 70df40980a87..3c23e70885f4 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -60,6 +60,7 @@
 #include <linux/jhash.h>
 #include <linux/init.h>
 #include <linux/times.h>
+#include <linux/slab.h>
 
 #include <net/net_namespace.h>
 #include <net/icmp.h>
@@ -370,6 +371,11 @@ void tcp_v4_err(struct sk_buff *icmp_skb, u32 info)
 	if (sk->sk_state == TCP_CLOSE)
 		goto out;
 
+	if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) {
+		NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
+		goto out;
+	}
+
 	icsk = inet_csk(sk);
 	tp = tcp_sk(sk);
 	seq = ntohl(th->seq);
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 4199bc6915c5..5fabff9ac6d6 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -20,6 +20,7 @@
 
 #include <linux/mm.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/sysctl.h>
 #include <linux/workqueue.h>
 #include <net/tcp.h>
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index f181b78f2385..0dda86e72ad8 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -37,6 +37,7 @@
 #include <net/tcp.h>
 
 #include <linux/compiler.h>
+#include <linux/gfp.h>
 #include <linux/module.h>
 
 /* People can turn this off for buggy TCP's found in printers etc. */
diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index 9bc805df95d2..f8efada580e8 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -22,6 +22,7 @@
 #include <linux/kprobes.h>
 #include <linux/socket.h>
 #include <linux/tcp.h>
+#include <linux/slab.h>
 #include <linux/proc_fs.h>
 #include <linux/module.h>
 #include <linux/ktime.h>
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index b2e6bbccaee1..8a0ab2977f1f 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -19,6 +19,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/gfp.h>
 #include <net/tcp.h>
 
 int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES;
diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c
index 3959e0ca456a..3b3813cc80b9 100644
--- a/net/ipv4/tunnel4.c
+++ b/net/ipv4/tunnel4.c
@@ -8,6 +8,7 @@
 #include <linux/mutex.h>
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
+#include <linux/slab.h>
 #include <net/icmp.h>
 #include <net/ip.h>
 #include <net/protocol.h>
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 7af756d0f931..954bbfb39dff 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -95,6 +95,7 @@
 #include <linux/mm.h>
 #include <linux/inet.h>
 #include <linux/netdevice.h>
+#include <linux/slab.h>
 #include <net/tcp_states.h>
 #include <linux/skbuff.h>
 #include <linux/proc_fs.h>
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index f9f922a0ba88..c791bb63203f 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c
@@ -9,6 +9,7 @@
  *
  */
 
+#include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/netfilter.h>
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index 3444f3b34eca..6f368413eb0e 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -4,6 +4,7 @@
  * Copyright (c) 2004-2006 Herbert Xu <herbert@gondor.apana.org.au>
  */
 
+#include <linux/gfp.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>