1 files changed, 25 insertions, 0 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index b7a856e3281b..f978ddd1bb43 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -511,6 +511,31 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(ieee80211_wake_queues);
 
+void ieee80211_flush_queues(struct ieee80211_local *local,
+                            struct ieee80211_sub_if_data *sdata)
+{
+        u32 queues;
+
+        if (!local->ops->flush)
+                return;
+
+        if (sdata && local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) {
+                int ac;
+
+                queues = 0;
+
+                for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
+                        queues |= BIT(sdata->vif.hw_queue[ac]);
+                if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE)
+                        queues |= BIT(sdata->vif.cab_queue);
+        } else {
+                /* all queues */
+                queues = BIT(local->hw.queues) - 1;
+        }
+
+        drv_flush(local, queues, false);
+}
+
 void ieee80211_iterate_active_interfaces(
         struct ieee80211_hw *hw, u32 iter_flags,
         void (*iterator)(void *data, u8 *mac,