netdev - [PATCH net-next v2] vxlan: dont migrate permanent fdb entries during learn

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Message-Id: <1497223970-40084-1-git-send-email-roopa@cumulusnetworks.com>
Date:   Sun, 11 Jun 2017 16:32:50 -0700
From:   Roopa Prabhu <roopa@...ulusnetworks.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, jbenc@...hat.com,
        hannes@...essinduktion.org, nicolas.dichtel@...nd.com,
        nikolay@...ulusnetworks.com
Subject: [PATCH net-next v2] vxlan: dont migrate permanent fdb entries during learn

From: Roopa Prabhu <roopa@...ulusnetworks.com>

This patch fixes vxlan_snoop to not move permanent fdb entries
on learn events. This is consistent with the bridge fdb
handling of permanent entries.

Fixes: 26a41ae60438 ("vxlan: only migrate dynamic FDB entries")
Signed-off-by: Roopa Prabhu <roopa@...ulusnetworks.com>
---
v2 - added Fixes tag

 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 7cb21a0..e045c34 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -970,7 +970,7 @@ static bool vxlan_snoop(struct net_device *dev,
 			return false;
 
 		/* Don't migrate static entries, drop packets */
-		if (f->state & NUD_NOARP)
+		if (f->state & (NUD_PERMANENT | NUD_NOARP))
 			return true;
 
 		if (net_ratelimit())
-- 
1.9.1