mac80211: send unexpected 4addr event

Implement the cfg80211 notification but only send
one event per associated station to avoid having
tons of events if the station thinks it should be
allowed to use 4addr frames but it isn't.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 8c8ce05ad26f..c5923ab8a070 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -52,6 +52,7 @@
  *      unblocks the station.
  * @WLAN_STA_SP: Station is in a service period, so don't try to
  *      reply to other uAPSD trigger frames or PS-Poll.
+ * @WLAN_STA_4ADDR_EVENT: 4-addr event was already sent for this frame.
  */
 enum ieee80211_sta_info_flags {
         WLAN_STA_AUTH,
@@ -71,6 +72,7 @@ enum ieee80211_sta_info_flags {
         WLAN_STA_TDLS_PEER_AUTH,
         WLAN_STA_UAPSD,
         WLAN_STA_SP,
+        WLAN_STA_4ADDR_EVENT,
 };
 
 #define STA_TID_NUM 16
@@ -390,6 +392,12 @@ static inline int test_and_clear_sta_flag(struct sta_info *sta,
         return test_and_clear_bit(flag, &sta->_flags);
 }
 
+static inline int test_and_set_sta_flag(struct sta_info *sta,
+                                        enum ieee80211_sta_info_flags flag)
+{
+        return test_and_set_bit(flag, &sta->_flags);
+}
+
 void ieee80211_assign_tid_tx(struct sta_info *sta, int tid,
                              struct tid_ampdu_tx *tid_tx);