ipv4: Pass explicit destination address to rt_get_peer().

This will next trickle down to rt_bind_peer().
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/route.h

@@ -292,7 +292,7 @@ static inline struct rtable *ip_route_newports(struct flowi4 *fl4, struct rtable
 
 extern void rt_bind_peer(struct rtable *rt, int create);
 
-static inline struct inet_peer *rt_get_peer(struct rtable *rt)
+static inline struct inet_peer *rt_get_peer(struct rtable *rt, __be32 daddr)
 {
 	if (rt->peer)
 		return rt->peer;

net/ipv4/tcp_ipv4.c

@@ -206,7 +206,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 
 	if (tcp_death_row.sysctl_tw_recycle &&
 	    !tp->rx_opt.ts_recent_stamp && fl4->daddr == daddr) {
-		struct inet_peer *peer = rt_get_peer(rt);
+		struct inet_peer *peer = rt_get_peer(rt, fl4->daddr);
 		/*
 		 * VJ's idea. We save last timestamp seen from
 		 * the destination in peer table, when entering state
@@ -1353,8 +1353,8 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 		if (tmp_opt.saw_tstamp &&
 		    tcp_death_row.sysctl_tw_recycle &&
 		    (dst = inet_csk_route_req(sk, &fl4, req)) != NULL &&
-		    (peer = rt_get_peer((struct rtable *)dst)) != NULL &&
-		    peer->daddr.addr.a4 == saddr) {
+		    fl4.daddr == saddr &&
+		    (peer = rt_get_peer((struct rtable *)dst, fl4.daddr)) != NULL) {
 			inet_peer_refcheck(peer);
 			if ((u32)get_seconds() - peer->tcp_ts_stamp < TCP_PAWS_MSL &&
 			    (s32)(peer->tcp_ts - req->ts_recent) >