mac80211: send deauth when connection is lost

If the driver determines the connection is lost,
send a deauth frame to the AP anyway just in case
it still considers the connection alive. The frame
might not go through, but at least we've tried.

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

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4ff52d0..756df39 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1827,8 +1827,7 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL(ieee80211_ap_probereq_get);
 
-static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata,
-                                  bool transmit_frame)
+static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 {
        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
        struct ieee80211_local *local = sdata->local;
@@ -1842,7 +1841,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata,
 
        ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
                               WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
-                              transmit_frame, frame_buf);
+                              true, frame_buf);
        ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
        mutex_unlock(&ifmgd->mtx);
 
@@ -1876,7 +1875,7 @@ static void ieee80211_beacon_connection_loss_work(struct work_struct *work)
        if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) {
                sdata_info(sdata, "Connection to AP %pM lost\n",
                           ifmgd->bssid);
-               __ieee80211_disconnect(sdata, false);
+               __ieee80211_disconnect(sdata);
        } else {
                ieee80211_mgd_probe_ap(sdata, true);
        }
@@ -1890,7 +1889,7 @@ static void ieee80211_csa_connection_drop_work(struct work_struct *work)
 
        ieee80211_wake_queues_by_reason(&sdata->local->hw,
                                        IEEE80211_QUEUE_STOP_REASON_CSA);
-       __ieee80211_disconnect(sdata, true);
+       __ieee80211_disconnect(sdata);
 }
 
 void ieee80211_beacon_loss(struct ieee80211_vif *vif)