The following patch was NOT applied because it was already applied in bug http://bugs.launchpad.net/bugs/1729637
* ipv6: only call ip6_route_dev_notify() once for NETDEV_UNREGISTER
The following patch was NOT applied because it was already applied in bug http:// bugs.launchpad. net/bugs/ 1729637
* ipv6: only call ip6_route_ dev_notify( ) once for NETDEV_UNREGISTER