From 30738b8663717b691a9e0781ac97fdcf527b462a Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 4 May 2011 12:33:34 -0700
Subject: [PATCH] --- yaml --- r: 247063 b: refs/heads/master c:
 cbb1e85f9cfd2bd9b7edfd21d167e89a4279faf0 h: refs/heads/master i:   247061:
 7977911dc5203fc2b0f6089e49390dd17f1d5238   247059:
 4e8d8c1814d01fff949231f64e54580c7a3be108   247055:
 6666b00dd84858d0ad487ab2960f242f16615efe v: v3

---
 [refs]                    |  2 +-
 trunk/include/net/route.h | 19 +++++++++----------
 trunk/net/ipv4/ip_gre.c   | 37 +++++++++++++++++++++----------------
 3 files changed, 31 insertions(+), 27 deletions(-)

diff --git a/[refs] b/[refs]
index 08082701c1e1..9680550fdad2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9a1b9496cd2b013f74885218947fa7120d53e74c
+refs/heads/master: cbb1e85f9cfd2bd9b7edfd21d167e89a4279faf0
diff --git a/trunk/include/net/route.h b/trunk/include/net/route.h
index 8c02c871a8ce..9f8070b251fb 100644
--- a/trunk/include/net/route.h
+++ b/trunk/include/net/route.h
@@ -152,19 +152,18 @@ static inline struct rtable *ip_route_output_ports(struct net *net, struct flowi
 	return ip_route_output_flow(net, fl4, sk);
 }
 
-static inline struct rtable *ip_route_output_gre(struct net *net,
+static inline struct rtable *ip_route_output_gre(struct net *net, struct flowi4 *fl4,
 						 __be32 daddr, __be32 saddr,
 						 __be32 gre_key, __u8 tos, int oif)
 {
-	struct flowi4 fl4 = {
-		.flowi4_oif = oif,
-		.daddr = daddr,
-		.saddr = saddr,
-		.flowi4_tos = tos,
-		.flowi4_proto = IPPROTO_GRE,
-		.fl4_gre_key = gre_key,
-	};
-	return ip_route_output_key(net, &fl4);
+	memset(fl4, 0, sizeof(*fl4));
+	fl4->flowi4_oif = oif;
+	fl4->daddr = daddr;
+	fl4->saddr = saddr;
+	fl4->flowi4_tos = tos;
+	fl4->flowi4_proto = IPPROTO_GRE;
+	fl4->fl4_gre_key = gre_key;
+	return ip_route_output_key(net, fl4);
 }
 
 extern int ip_route_input_common(struct sk_buff *skb, __be32 dst, __be32 src,
diff --git a/trunk/net/ipv4/ip_gre.c b/trunk/net/ipv4/ip_gre.c
index 24efd353279a..10e9b5aea070 100644
--- a/trunk/net/ipv4/ip_gre.c
+++ b/trunk/net/ipv4/ip_gre.c
@@ -699,6 +699,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 	struct pcpu_tstats *tstats;
 	const struct iphdr  *old_iph = ip_hdr(skb);
 	const struct iphdr  *tiph;
+	struct flowi4 fl4;
 	u8     tos;
 	__be16 df;
 	struct rtable *rt;     			/* Route to the other host */
@@ -769,7 +770,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 			tos = ipv6_get_dsfield((const struct ipv6hdr *)old_iph);
 	}
 
-	rt = ip_route_output_gre(dev_net(dev), dst, tiph->saddr,
+	rt = ip_route_output_gre(dev_net(dev), &fl4, dst, tiph->saddr,
 				 tunnel->parms.o_key, RT_TOS(tos),
 				 tunnel->parms.link);
 	if (IS_ERR(rt)) {
@@ -873,8 +874,8 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 	iph->frag_off		=	df;
 	iph->protocol		=	IPPROTO_GRE;
 	iph->tos		=	ipgre_ecn_encapsulate(tos, old_iph, skb);
-	iph->daddr		=	rt->rt_dst;
-	iph->saddr		=	rt->rt_src;
+	iph->daddr		=	fl4.daddr;
+	iph->saddr		=	fl4.saddr;
 
 	if ((iph->ttl = tiph->ttl) == 0) {
 		if (skb->protocol == htons(ETH_P_IP))
@@ -938,12 +939,14 @@ static int ipgre_tunnel_bind_dev(struct net_device *dev)
 	/* Guess output device to choose reasonable mtu and needed_headroom */
 
 	if (iph->daddr) {
-		struct rtable *rt = ip_route_output_gre(dev_net(dev),
-							iph->daddr, iph->saddr,
-							tunnel->parms.o_key,
-							RT_TOS(iph->tos),
-							tunnel->parms.link);
-
+		struct flowi4 fl4;
+		struct rtable *rt;
+
+		rt = ip_route_output_gre(dev_net(dev), &fl4,
+					 iph->daddr, iph->saddr,
+					 tunnel->parms.o_key,
+					 RT_TOS(iph->tos),
+					 tunnel->parms.link);
 		if (!IS_ERR(rt)) {
 			tdev = rt->dst.dev;
 			ip_rt_put(rt);
@@ -1196,13 +1199,15 @@ static int ipgre_open(struct net_device *dev)
 	struct ip_tunnel *t = netdev_priv(dev);
 
 	if (ipv4_is_multicast(t->parms.iph.daddr)) {
-		struct rtable *rt = ip_route_output_gre(dev_net(dev),
-							t->parms.iph.daddr,
-							t->parms.iph.saddr,
-							t->parms.o_key,
-							RT_TOS(t->parms.iph.tos),
-							t->parms.link);
-
+		struct flowi4 fl4;
+		struct rtable *rt;
+
+		rt = ip_route_output_gre(dev_net(dev), &fl4,
+					 t->parms.iph.daddr,
+					 t->parms.iph.saddr,
+					 t->parms.o_key,
+					 RT_TOS(t->parms.iph.tos),
+					 t->parms.link);
 		if (IS_ERR(rt))
 			return -EADDRNOTAVAIL;
 		dev = rt->dst.dev;