static void __exit macvlan_cleanup_module(void)
{
	rtnl_link_unregister(&macvlan_link_ops);
	unregister_netdevice_notifier(&macvlan_notifier_block);
}
static void __exit macvlan_cleanup_module(void)
{
	rtnl_link_unregister(&macvlan_link_ops);
	unregister_netdevice_notifier(&macvlan_notifier_block);
}