mac80211: fix hardware scan completion

The mac80211 MLME requires restarting timers after a scan
completes but this wasn't done when hardware scan offload
was added, so add it now.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Tested-by: Bill Moss <bmoss@clemson.edu>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 18 insertions, 7 deletions

diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 75ced9a5476c..bece28b3eba5 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -3576,6 +3576,13 @@ static void ieee80211_send_nullfunc(struct ieee80211_local *local,
 }
 
 
+static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
+{
+        if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+            ieee80211_vif_is_mesh(&sdata->vif))
+                ieee80211_sta_timer((unsigned long)sdata);
+}
+
 void ieee80211_scan_completed(struct ieee80211_hw *hw)
 {
         struct ieee80211_local *local = hw_to_local(hw);
@@ -3589,6 +3596,12 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 
         if (local->sta_hw_scanning) {
                 local->sta_hw_scanning = 0;
+                /* Restart STA timer for HW scan case */
+                rcu_read_lock();
+                list_for_each_entry_rcu(sdata, &local->interfaces, list)
+                        ieee80211_restart_sta_timer(sdata);
+                rcu_read_unlock();
+
                 goto done;
         }
 
@@ -3615,14 +3628,12 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
                 if (sdata->dev == local->mdev)
                         continue;
 
-                if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
-                        if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
-                                ieee80211_send_nullfunc(local, sdata, 0);
-                        ieee80211_sta_timer((unsigned long)sdata);
-                }
+                /* Tell AP we're back */
+                if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
+                    sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
+                        ieee80211_send_nullfunc(local, sdata, 0);
 
-                if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
-                        ieee80211_sta_timer((unsigned long)sdata);
+                ieee80211_restart_sta_timer(sdata);
 
                 netif_wake_queue(sdata->dev);
         }