linux-kernel - [PATCH V2 2/5 net-next] vxlan: add unlikely to vxlan

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Date:   Fri, 25 Sep 2020 15:16:18 +0200
From:   Fabian Frederick <fabf@...net.be>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     mkubecek@...e.cz, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Fabian Frederick <fabf@...net.be>
Subject: [PATCH V2 2/5 net-next] 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@...net.be>
---
 drivers/net/vxlan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 47c762f7f5b11..cc904f003f158 100644
--- 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)) {
-- 
2.27.0