On Wed, 2014-02-26 at 12:34 +0100, Arend van Spriel wrote:

quoted

I'm not sure this isn't still possible? I don't know when DELLINK is
sent.

Given the behaviour I would say before the netdev notifier, which may be
considered wrong. It depends whether the notifier was intended for the
kind of thing that cfg80211 is doing, ie. send a netlink event to
user-space?

Well, I checked:

                call_netdevice_notifiers(NETDEV_UNREGISTER, dev);

                if (!dev->rtnl_link_ops ||
                    dev->rtnl_link_state == RTNL_LINK_INITIALIZED)
                        rtmsg_ifinfo(RTM_DELLINK, dev, ~0U, GFP_KERNEL);

so ... :)

johannes