mac80211: ignore cqm during csa

It is not guaranteed that multi-vif channel
switching is tightly synchronized. It makes sense
to ignore cqm (missing beacons, et al) while csa
is progressing and re-check it after it completes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index d68e73cbdcd6..7f073ef1e0a6 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -988,6 +988,9 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 
         ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
 
+        ieee80211_sta_reset_beacon_monitor(sdata);
+        ieee80211_sta_reset_conn_monitor(sdata);
+
 out:
         sdata_unlock(sdata);
 }
@@ -3565,6 +3568,9 @@ static void ieee80211_sta_bcn_mon_timer(unsigned long data)
         if (local->quiescing)
                 return;
 
+        if (sdata->vif.csa_active)
+                return;
+
         sdata->u.mgd.connection_loss = false;
         ieee80211_queue_work(&sdata->local->hw,
                              &sdata->u.mgd.beacon_connection_loss_work);
@@ -3580,6 +3586,9 @@ static void ieee80211_sta_conn_mon_timer(unsigned long data)
         if (local->quiescing)
                 return;
 
+        if (sdata->vif.csa_active)
+                return;
+
         ieee80211_queue_work(&local->hw, &ifmgd->monitor_work);
 }