vxlan: add unlikely to vxlan_remcsum check

small optimization around checking as it's being done in all
receptions

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 47c762f..cc904f0 100644 (file)
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1876,7 +1876,7 @@ static int vxlan_rcv(struct sock *sk, struct sk_buff *skb)
                goto drop;
 
        if (vs->flags & VXLAN_F_REMCSUM_RX)
-               if (!vxlan_remcsum(&unparsed, skb, vs->flags))
+               if (unlikely(!vxlan_remcsum(&unparsed, skb, vs->flags)))
                        goto drop;
 
        if (vxlan_collect_metadata(vs)) {