linux-kernel - [PATCH 2/7 net-next] vxlan: add unlikely to vxlan

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Message-Id: <20200827064923.5632-1-fabf@skynet.be>
Date:   Thu, 27 Aug 2020 08:49:23 +0200
From:   Fabian Frederick <fabf@...net.be>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Fabian Frederick <fabf@...net.be>
Subject: [PATCH 2/7 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