diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5e5029b..fc4806c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3225,6 +3225,19 @@
 void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap,
 				  const u8 *addr);
 
+/**
+ * ieee80211_send_bar - send a BlockAckReq frame
+ *
+ * can be used to flush pending frames from the peer's aggregation reorder
+ * buffer.
+ *
+ * @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @ra: the peer's destination address
+ * @tid: the TID of the aggregation session
+ * @ssn: the new starting sequence number for the receiver
+ */
+void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn);
+
 /* Rate control API */
 
 /**