ip6_gre: ip6gre_tap device should keep dst
authorXin Long <lucien.xin@gmail.com>
Thu, 28 Sep 2017 05:23:50 +0000 (13:23 +0800)
committerDavid S. Miller <davem@davemloft.net>
Sun, 1 Oct 2017 02:46:42 +0000 (03:46 +0100)
The patch 'ip_gre: ipgre_tap device should keep dst' fixed
a issue that ipgre_tap mtu couldn't be updated in tx path.

The same fix is needed for ip6gre_tap as well.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/ip6_gre.c

index 20f66f4..1602b49 100644 (file)
@@ -1311,6 +1311,7 @@ static void ip6gre_tap_setup(struct net_device *dev)
        dev->features |= NETIF_F_NETNS_LOCAL;
        dev->priv_flags &= ~IFF_TX_SKB_SHARING;
        dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+       netif_keep_dst(dev);
 }
 
 static bool ip6gre_netlink_encap_parms(struct nlattr *data[],