[Devel] [PATCH 10/14] ip gre: containerize per-net devices

[Kirill Tkhai]

Port patch diff-ve-net-ip_gre-containerize-per-net-devices from 2.6.32:

This patch adds IP GRE devices support in a container.

Done in the scope of
https://jira.sw.ru/browse/PSBM-24331

Signed-off-by: Stanislav Kinsbursky <skinsbursky at parallels.com>
Signed-off-by: Kirill Tkhai <ktkhai at odin.com>
---
 net/ipv4/ip_gre.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 8d6939e..b009e2e 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -463,6 +463,7 @@ static void ipgre_tunnel_setup(struct net_device *dev)
 {
 	dev->netdev_ops		= &ipgre_netdev_ops;
 	ip_tunnel_setup(dev, ipgre_net_id);
+	dev->features |= NETIF_F_VIRTUAL;
 }
 
 static void __gre_tunnel_init(struct net_device *dev)
@@ -649,6 +650,7 @@ static void ipgre_tap_setup(struct net_device *dev)
 	ether_setup(dev);
 	dev->netdev_ops		= &gre_tap_netdev_ops;
 	ip_tunnel_setup(dev, gre_tap_net_id);
+	dev->features |= NETIF_F_VIRTUAL;
 }
 
 static int ipgre_newlink(struct net *src_net, struct net_device *dev,