Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android

[firefly-linux-kernel-4.4.55.git] / net / mac80211 / scan.c

diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 4aeca4b0c3cb426ba65b23d4a8ebc756e7a826a4..acbe182b75d1510473ba73ba664b63122f895195 100644 (file)
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -314,6 +314,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
        bool was_scanning = local->scanning;
        struct cfg80211_scan_request *scan_req;
        struct ieee80211_sub_if_data *scan_sdata;
+       struct ieee80211_sub_if_data *sdata;
 
        lockdep_assert_held(&local->mtx);
 
@@ -373,7 +374,16 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 
        ieee80211_mlme_notify_scan_completed(local);
        ieee80211_ibss_notify_scan_completed(local);
-       ieee80211_mesh_notify_scan_completed(local);
+
+       /* Requeue all the work that might have been ignored while
+        * the scan was in progress; if there was none this will
+        * just be a no-op for the particular interface.
+        */
+       list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+               if (ieee80211_sdata_running(sdata))
+                       ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+       }
+
        if (was_scanning)
                ieee80211_start_next_roc(local);
 }
@@ -597,8 +607,8 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
                /* We need to ensure power level is at max for scanning. */
                ieee80211_hw_config(local, 0);
 
-               if ((req->channels[0]->flags &
-                    IEEE80211_CHAN_NO_IR) ||
+               if ((req->channels[0]->flags & (IEEE80211_CHAN_NO_IR |
+                                               IEEE80211_CHAN_RADAR)) ||
                    !req->n_ssids) {
                        next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
                } else {
@@ -645,7 +655,7 @@ ieee80211_scan_get_channel_time(struct ieee80211_channel *chan)
         * TODO: channel switching also consumes quite some time,
         * add that delay as well to get a better estimation
         */
-       if (chan->flags & IEEE80211_CHAN_NO_IR)
+       if (chan->flags & (IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_RADAR))
                return IEEE80211_PASSIVE_CHANNEL_TIME;
        return IEEE80211_PROBE_DELAY + IEEE80211_CHANNEL_TIME;
 }
@@ -777,7 +787,8 @@ static void ieee80211_scan_state_set_channel(struct ieee80211_local *local,
         *
         * In any case, it is not necessary for a passive scan.
         */
-       if (chan->flags & IEEE80211_CHAN_NO_IR || !scan_req->n_ssids) {
+       if ((chan->flags & (IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_RADAR)) ||
+           !scan_req->n_ssids) {
                *next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
                local->next_scan_state = SCAN_DECISION;
                return;