ipv4: Make output route lookup return rtable directly.
Instead of on the stack.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index 9770bb4..67bf709 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -38,7 +38,8 @@
fl.oif = skb->sk ? skb->sk->sk_bound_dev_if : 0;
fl.mark = skb->mark;
fl.flags = skb->sk ? inet_sk_flowi_flags(skb->sk) : 0;
- if (ip_route_output_key(net, &rt, &fl) != 0)
+ rt = ip_route_output_key(net, &fl);
+ if (IS_ERR(rt))
return -1;
/* Drop old route. */
@@ -48,7 +49,8 @@
/* non-local src, find valid iif to satisfy
* rp-filter when calling ip_route_input. */
fl.fl4_dst = iph->saddr;
- if (ip_route_output_key(net, &rt, &fl) != 0)
+ rt = ip_route_output_key(net, &fl);
+ if (IS_ERR(rt))
return -1;
orefdst = skb->_skb_refdst;
@@ -221,7 +223,11 @@
static int nf_ip_route(struct dst_entry **dst, struct flowi *fl)
{
- return ip_route_output_key(&init_net, (struct rtable **)dst, fl);
+ struct rtable *rt = ip_route_output_key(&init_net, fl);
+ if (IS_ERR(rt))
+ return PTR_ERR(rt);
+ *dst = &rt->dst;
+ return 0;
}
static const struct nf_afinfo nf_ip_afinfo = {
