2 files changed, 8 insertions, 0 deletions

diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 4c3ee3e8285c..cc79b4a2e821 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -114,8 +114,13 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local)
          * STA interfaces.
          */
 
+        /*
+         * Stop queues and transmit all frames queued by the driver
+         * before sending nullfunc to enable powersave at the AP.
+         */
         ieee80211_stop_queues_by_reason(&local->hw,
                                         IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL);
+        drv_flush(local, false);
 
         mutex_lock(&local->iflist_mtx);
         list_for_each_entry(sdata, &local->interfaces, list) {
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index d9e2df96f676..6d0b89e4aa31 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -334,6 +334,9 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local)
 
         ieee80211_offchannel_stop_vifs(local);
 
+        /* ensure nullfunc is transmitted before leaving operating channel */
+        drv_flush(local, false);
+
         ieee80211_configure_filter(local);
 
         /* We need to set power level at maximum rate for scanning. */