register_netdevice_notifier
int register_netdevice_notifier(struct notifier_block *);
rc = register_netdevice_notifier(nb);
ret = register_netdevice_notifier(&iwdev->nb_netdevice_event);
err = register_netdevice_notifier(&iboe->nb);
err = register_netdevice_notifier(&dev->roce.nb);
register_netdevice_notifier(&nb_inetaddr);