mac80211: stop queues temporarily for flushing

Sometimes queues are flushed in the middle of
operation, which can lead to driver issues.
Stop queues temporarily, while flushing, to
avoid transmitting new packets while they are
being flushed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 65b38e13eb0c..4d383a93ea73 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1009,6 +1009,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 
         /* XXX: wait for a beacon first? */
         ieee80211_wake_queues_by_reason(&sdata->local->hw,
+                                        IEEE80211_MAX_QUEUE_MAP,
                                         IEEE80211_QUEUE_STOP_REASON_CSA);
  out:
         ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
@@ -1108,6 +1109,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 
         if (sw_elem->mode)
                 ieee80211_stop_queues_by_reason(&sdata->local->hw,
+                                IEEE80211_MAX_QUEUE_MAP,
                                 IEEE80211_QUEUE_STOP_REASON_CSA);
 
         if (sdata->local->ops->channel_switch) {
@@ -1375,6 +1377,7 @@ void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
         }
 
         ieee80211_wake_queues_by_reason(&local->hw,
+                                        IEEE80211_MAX_QUEUE_MAP,
                                         IEEE80211_QUEUE_STOP_REASON_PS);
 }
 
@@ -2071,6 +2074,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
                                true, frame_buf);
         ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
         ieee80211_wake_queues_by_reason(&sdata->local->hw,
+                                        IEEE80211_MAX_QUEUE_MAP,
                                         IEEE80211_QUEUE_STOP_REASON_CSA);
         mutex_unlock(&ifmgd->mtx);