From: Xin Long <lucien....@gmail.com>
Upstream commit:
commit c84bed440e4e11a973e8c0254d0dfaccfca41fb0
Author: Xin Long <lucien....@gmail.com>
Date: Sun Oct 1 22:00:56 2017 +0800
ip_gre: erspan device should keep dst
The patch 'ip_gre: ipgre_tap device should keep dst' fixed
the issue ipgre_tap dev mtu couldn't be updated in tx path.
The same fix is needed for erspan as well.
Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN")
Signed-off-by: Xin Long <lucien....@gmail.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Cc: Xin Long <lucien....@gmail.com>
Signed-off-by: Greg Rose <gvrose8...@gmail.com>
---
datapath/linux/compat/ip_gre.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/datapath/linux/compat/ip_gre.c b/datapath/linux/compat/ip_gre.c
index 70c6a9f..19e78af 100644
--- a/datapath/linux/compat/ip_gre.c
+++ b/datapath/linux/compat/ip_gre.c
@@ -1053,6 +1053,7 @@ static int erspan_tunnel_init(struct net_device *dev)
dev->features |= GRE_FEATURES;
dev->hw_features |= GRE_FEATURES;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+ netif_keep_dst(dev);
return ip_tunnel_init(dev);
}
--
1.8.3.1
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