netfilter: ipt_REJECT: avoid touching dst ref

We can avoid a pair of atomic ops in ipt_REJECT send_reset()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 3d0e064bab54..b254dafaf429 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -110,7 +110,7 @@ static void send_reset(struct sk_buff *oldskb, int hook)
                 addr_type = RTN_LOCAL;
 
         /* ip_route_me_harder expects skb->dst to be set */
-        skb_dst_set(nskb, dst_clone(skb_dst(oldskb)));
+        skb_dst_set_noref(nskb, skb_dst(oldskb));
 
         if (ip_route_me_harder(nskb, addr_type))
                 goto free_nskb;