cfg80211/mac80211: support reporting wakeup reason

When waking up from WoWLAN, it is useful to know
what triggered the wakeup. Support reporting the
wakeup reason(s) in cfg80211 (and a pass-through
in mac80211) to allow userspace to know.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 21831ee..7a27e00 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4206,4 +4206,16 @@
  */
 int ieee80211_ave_rssi(struct ieee80211_vif *vif);
 
+/**
+ * ieee80211_report_wowlan_wakeup - report WoWLAN wakeup
+ * @vif: virtual interface
+ * @wakeup: wakeup reason(s)
+ * @gfp: allocation flags
+ *
+ * See cfg80211_report_wowlan_wakeup().
+ */
+void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif,
+				    struct cfg80211_wowlan_wakeup *wakeup,
+				    gfp_t gfp);
+
 #endif /* MAC80211_H */