Patch "ip6_gre: ip6gre_tap device should keep dst" has been added to the 4.9-stable tree

Patch "ip6_gre: ip6gre_tap device should keep dst" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ip6_gre: ip6gre_tap device should keep dst

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ip6_gre-ip6gre_tap-device-should-keep-dst.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Tue Oct 10 16:09:22 CEST 2017
From: Xin Long <lucien.xin@gmail.com>
Date: Thu, 28 Sep 2017 13:23:50 +0800
Subject: ip6_gre: ip6gre_tap device should keep dst

From: Xin Long <lucien.xin@gmail.com>


[ Upstream commit 2d40557cc702ed8e5edd9bd422233f86652d932e ]

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/ip6_gre.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1298,6 +1298,7 @@ static void ip6gre_tap_setup(struct net_
 	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[],


Patches currently in stable-queue which might be from lucien.xin@gmail.com are

queue-4.9/ip6_tunnel-do-not-allow-loading-ip6_tunnel-if-ipv6-is-disabled-in-cmdline.patch
queue-4.9/ip6_gre-ip6gre_tap-device-should-keep-dst.patch
queue-4.9/ip6_gre-skb_push-ipv6hdr-before-packing-the-header-in-ip6gre_header.patch
queue-4.9/ip6_tunnel-update-mtu-properly-for-arphrd_ether-tunnel-device-in-tx-path.patch