team: Don't allow team devices to change network namespaces.

Weilong Chen · davem330 · commit 99301ba11cb7 · 2014-01-22T21:57:17.000-08:00
Like bonding, team as netdevice doesn't cross netns boundaries.

Team ports and team itself live in same netns.

Signed-off-by: Weilong Chen &lt;chenweilong@huawei.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
@@ -2034,6 +2034,10 @@ static void team_setup(struct net_device *dev)
 
 	dev->features |= NETIF_F_LLTX;
 	dev->features |= NETIF_F_GRO;
+
+	/* Don't allow team devices to change network namespaces. */
+	dev->features |= NETIF_F_NETNS_LOCAL;
+
 	dev->hw_features = TEAM_VLAN_FEATURES |
 			   NETIF_F_HW_VLAN_CTAG_TX |
 			   NETIF_F_HW_VLAN_CTAG_RX |
