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authorDavid S. Miller <davem@davemloft.net>2011-03-02 14:31:35 -0800
committerDavid S. Miller <davem@davemloft.net>2011-03-02 14:31:35 -0800
commitb23dd4fe42b455af5c6e20966b7d6959fa8352ea (patch)
treebf97323eae9a8d084170e573ff2c0c40bc72c3cd /net/dccp
parentxfrm: Return dst directly from xfrm_lookup() (diff)
downloadlinux-dev-b23dd4fe42b455af5c6e20966b7d6959fa8352ea.tar.xz
linux-dev-b23dd4fe42b455af5c6e20966b7d6959fa8352ea.zip
ipv4: Make output route lookup return rtable directly.
Instead of on the stack. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp')
-rw-r--r--net/dccp/ipv4.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index a8ff95502081..7882377bc62e 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;
}