netfilter: br_netfilter: use skb_set_noref()

Avoid dirtying bridge_parent_rtable refcount, using new dst noref
infrastructure.

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

1 files changed, 2 insertions, 4 deletions

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 44420992f72f..cbea5af24ce6 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -244,8 +244,7 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
                 kfree_skb(skb);
                 return 0;
         }
-        dst_hold(&rt->u.dst);
-        skb_dst_set(skb, &rt->u.dst);
+        skb_dst_set_noref(skb, &rt->u.dst);
 
         skb->dev = nf_bridge->physindev;
         nf_bridge_update_protocol(skb);
@@ -396,8 +395,7 @@ bridged_dnat:
                         kfree_skb(skb);
                         return 0;
                 }
-                dst_hold(&rt->u.dst);
-                skb_dst_set(skb, &rt->u.dst);
+                skb_dst_set_noref(skb, &rt->u.dst);
         }
 
         skb->dev = nf_bridge->physindev;