From: Xin Long <lucien.xin@gmail.com>
Date: Thu, 28 Sep 2017 05:23:50 +0000 (+0800)
Subject: ip6_gre: ip6gre_tap device should keep dst
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2d40557cc702ed8e5edd9bd422233f86652d932e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ip6_gre: ip6gre_tap device should keep dst

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>
---

diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 20f66f4c9460..1602b491b281 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -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[],