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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: 84e54fe0a5 ("gre: introduce native tunnel support for ERSPAN")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2017-10-01 22:00:56 +08:00 committed by David S. Miller
parent c122fda271
commit c84bed440e
1 changed files with 1 additions and 0 deletions
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net/ipv4/ip_gre.c
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@ -1254,6 +1254,7 @@ 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);
}