1 files changed, 13 insertions, 10 deletions

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 58642b29a499..dc2a399cd9f4 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -623,7 +623,7 @@ static inline u32 fnhe_hashfun(__be32 daddr)
 	u32 hval;
 
 	net_get_random_once(&fnhe_hashrnd, sizeof(fnhe_hashrnd));
-	hval = jhash_1word((__force u32) daddr, fnhe_hashrnd);
+	hval = jhash_1word((__force u32)daddr, fnhe_hashrnd);
 	return hash_32(hval, FNHE_HASH_SHIFT);
 }
 
@@ -1016,13 +1016,14 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
 {
 	struct dst_entry *dst = &rt->dst;
 	struct net *net = dev_net(dst->dev);
-	u32 old_mtu = ipv4_mtu(dst);
 	struct fib_result res;
 	bool lock = false;
+	u32 old_mtu;
 
 	if (ip_mtu_locked(dst))
 		return;
 
+	old_mtu = ipv4_mtu(dst);
 	if (old_mtu < mtu)
 		return;
 
@@ -1066,7 +1067,7 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
 void ipv4_update_pmtu(struct sk_buff *skb, struct net *net, u32 mtu,
 		      int oif, u8 protocol)
 {
-	const struct iphdr *iph = (const struct iphdr *) skb->data;
+	const struct iphdr *iph = (const struct iphdr *)skb->data;
 	struct flowi4 fl4;
 	struct rtable *rt;
 	u32 mark = IP4_REPLY_MARK(net, skb->mark);
@@ -1083,7 +1084,7 @@ EXPORT_SYMBOL_GPL(ipv4_update_pmtu);
 
 static void __ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
 {
-	const struct iphdr *iph = (const struct iphdr *) skb->data;
+	const struct iphdr *iph = (const struct iphdr *)skb->data;
 	struct flowi4 fl4;
 	struct rtable *rt;
 
@@ -1101,7 +1102,7 @@ static void __ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
 
 void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
 {
-	const struct iphdr *iph = (const struct iphdr *) skb->data;
+	const struct iphdr *iph = (const struct iphdr *)skb->data;
 	struct flowi4 fl4;
 	struct rtable *rt;
 	struct dst_entry *odst = NULL;
@@ -1131,7 +1132,7 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
 		new = true;
 	}
 
-	__ip_rt_update_pmtu((struct rtable *) xfrm_dst_path(&rt->dst), &fl4, mtu);
+	__ip_rt_update_pmtu((struct rtable *)xfrm_dst_path(&rt->dst), &fl4, mtu);
 
 	if (!dst_check(&rt->dst, 0)) {
 		if (new)
@@ -1156,7 +1157,7 @@ EXPORT_SYMBOL_GPL(ipv4_sk_update_pmtu);
 void ipv4_redirect(struct sk_buff *skb, struct net *net,
 		   int oif, u8 protocol)
 {
-	const struct iphdr *iph = (const struct iphdr *) skb->data;
+	const struct iphdr *iph = (const struct iphdr *)skb->data;
 	struct flowi4 fl4;
 	struct rtable *rt;
 
@@ -1172,7 +1173,7 @@ EXPORT_SYMBOL_GPL(ipv4_redirect);
 
 void ipv4_sk_redirect(struct sk_buff *skb, struct sock *sk)
 {
-	const struct iphdr *iph = (const struct iphdr *) skb->data;
+	const struct iphdr *iph = (const struct iphdr *)skb->data;
 	struct flowi4 fl4;
 	struct rtable *rt;
 	struct net *net = sock_net(sk);
@@ -1312,7 +1313,7 @@ static unsigned int ipv4_default_advmss(const struct dst_entry *dst)
 
 static unsigned int ipv4_mtu(const struct dst_entry *dst)
 {
-	const struct rtable *rt = (const struct rtable *) dst;
+	const struct rtable *rt = (const struct rtable *)dst;
 	unsigned int mtu = rt->rt_pmtu;
 
 	if (!mtu || time_after_eq(jiffies, rt->dst.expires))
@@ -2769,10 +2770,12 @@ struct rtable *ip_route_output_flow(struct net *net, struct flowi4 *flp4,
 	if (IS_ERR(rt))
 		return rt;
 
-	if (flp4->flowi4_proto)
+	if (flp4->flowi4_proto) {
+		flp4->flowi4_oif = rt->dst.dev->ifindex;
 		rt = (struct rtable *)xfrm_lookup_route(net, &rt->dst,
 							flowi4_to_flowi(flp4),
 							sk, 0);
+	}
 
 	return rt;
 }