mac80211_netdev_notifier 1994 net/mac80211/iface.c static struct notifier_block mac80211_netdev_notifier = { mac80211_netdev_notifier 2000 net/mac80211/iface.c return register_netdevice_notifier(&mac80211_netdev_notifier); mac80211_netdev_notifier 2005 net/mac80211/iface.c unregister_netdevice_notifier(&mac80211_netdev_notifier);