[PATCH AUTOSEL for 4.4 152/167] vxlan: dont migrate permanent fdb entries during learn

Sasha Levin
2018-03-19T16:11:30Z

From: Roopa Prabhu <roopa@cumulusnetworks.com>

[ Upstream commit e0090a9e979de5202c7d16c635dea2f005221073 ]

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@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
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 dab3bf6649e6..617a213f9d5f 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -962,7 +962,7 @@ 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())
--
2.14.1