From b23dd4fe42b455af5c6e20966b7d6959fa8352ea Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 2 Mar 2011 14:31:35 -0800 Subject: ipv4: Make output route lookup return rtable directly. Instead of on the stack. Signed-off-by: David S. Miller --- net/dccp/ipv4.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) (limited to 'net/dccp') diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index a8ff9550208..7882377bc62 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -46,7 +46,6 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) __be16 orig_sport, orig_dport; struct rtable *rt; __be32 daddr, nexthop; - int tmp; int err; dp->dccps_role = DCCP_ROLE_CLIENT; @@ -66,12 +65,12 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) orig_sport = inet->inet_sport; orig_dport = usin->sin_port; - tmp = ip_route_connect(&rt, nexthop, inet->inet_saddr, - RT_CONN_FLAGS(sk), sk->sk_bound_dev_if, - IPPROTO_DCCP, - orig_sport, orig_dport, sk, true); - if (tmp < 0) - return tmp; + rt = ip_route_connect(nexthop, inet->inet_saddr, + RT_CONN_FLAGS(sk), sk->sk_bound_dev_if, + IPPROTO_DCCP, + orig_sport, orig_dport, sk, true); + if (IS_ERR(rt)) + return PTR_ERR(rt); if (rt->rt_flags & (RTCF_MULTICAST | RTCF_BROADCAST)) { ip_rt_put(rt); @@ -102,12 +101,13 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) if (err != 0) goto failure; - err = ip_route_newports(&rt, IPPROTO_DCCP, - orig_sport, orig_dport, - inet->inet_sport, inet->inet_dport, sk); - if (err != 0) + rt = ip_route_newports(rt, IPPROTO_DCCP, + orig_sport, orig_dport, + inet->inet_sport, inet->inet_dport, sk); + if (IS_ERR(rt)) { + rt = NULL; goto failure; - + } /* OK, now commit destination to socket. */ sk_setup_caps(sk, &rt->dst); @@ -475,7 +475,8 @@ static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk, }; security_skb_classify_flow(skb, &fl); - if (ip_route_output_flow(net, &rt, &fl, sk)) { + rt = ip_route_output_flow(net, &fl, sk); + if (IS_ERR(rt)) { IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES); return NULL; } -- cgit v1.2.3-70-g09d2