mac80211/cfg80211: add station events

When, for instance, a new IBSS peer is found, userspace
wants to be notified. Add events for all new stations
that mac80211 learns about.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index a5e2de4..14855b8 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -70,4 +70,8 @@
 	u64 cookie, struct ieee80211_channel *chan,
 	enum nl80211_channel_type channel_type, gfp_t gfp);
 
+void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
+			    struct net_device *dev, const u8 *mac_addr,
+			    struct station_info *sinfo, gfp_t gfp);
+
 #endif /* __NET_WIRELESS_NL80211_H */