tree 6387f94b3e3e3ecc4a80e41c0f68b16e0ce59d4d
parent 896ff0635a312022c91e2bef30c80abc27af62e8
author Denis Kenzior <denkenz@gmail.com> 1470261515 -0500
committer Johannes Berg <johannes.berg@intel.com> 1470927102 +0200

cfg80211: always notify userspace when wireless netdev is removed

This change alters the semantics of NL80211_CMD_DEL_INTERFACE events
by always sending this event whenever a net_device object associated
with a wdev is destroyed.  Prior to this change, this event was only
emitted as a result of NL80211_CMD_DEL_INTERFACE command sent from
userspace.  This allows userspace to reliably detect when wireless
interfaces have been removed, e.g. due to USB removal events, etc.

For wireless device objects without an associated net_device (e.g.
NL80211_IFTYPE_P2P_DEVICE), the NL80211_CMD_DEL_INTERFACE event is
now generated inside cfg80211_unregister_wdev.

Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>