1 files changed, 23 insertions, 0 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index d98fac54577b..a861259c3050 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2094,6 +2094,29 @@ static inline int rate_supported(struct ieee80211_sta *sta,
         return (sta == NULL || sta->supp_rates[band] & BIT(index));
 }
 
+/**
+ * rate_control_send_low - helper for drivers for management/no-ack frames
+ *
+ * Rate control algorithms that agree to use the lowest rate to
+ * send management frames and NO_ACK data with the respective hw
+ * retries should use this in the beginning of their mac80211 get_rate
+ * callback. If true is returned the rate control can simply return.
+ * If false is returned we guarantee that sta and sta and priv_sta is
+ * not null.
+ *
+ * Rate control algorithms wishing to do more intelligent selection of
+ * rate for multicast/broadcast frames may choose to not use this.
+ *
+ * @sta: &struct ieee80211_sta pointer to the target destination. Note
+ *      that this may be null.
+ * @priv_sta: private rate control structure. This may be null.
+ * @txrc: rate control information we sholud populate for mac80211.
+ */
+bool rate_control_send_low(struct ieee80211_sta *sta,
+                           void *priv_sta,
+                           struct ieee80211_tx_rate_control *txrc);
+
+
 static inline s8
 rate_lowest_index(struct ieee80211_supported_band *sband,
                   struct ieee80211_sta *sta)