1 files changed, 40 insertions, 0 deletions

diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 745c37e7992e..17fde0da1b08 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -34,6 +34,44 @@ struct cfg80211_conn {
         bool auto_auth, prev_bssid_valid;
 };
 
+bool cfg80211_is_all_idle(void)
+{
+        struct cfg80211_registered_device *rdev;
+        struct wireless_dev *wdev;
+        bool is_all_idle = true;
+
+        mutex_lock(&cfg80211_mutex);
+
+        /*
+         * All devices must be idle as otherwise if you are actively
+         * scanning some new beacon hints could be learned and would
+         * count as new regulatory hints.
+         */
+        list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
+                cfg80211_lock_rdev(rdev);
+                list_for_each_entry(wdev, &rdev->netdev_list, list) {
+                        wdev_lock(wdev);
+                        if (wdev->sme_state != CFG80211_SME_IDLE)
+                                is_all_idle = false;
+                        wdev_unlock(wdev);
+                }
+                cfg80211_unlock_rdev(rdev);
+        }
+
+        mutex_unlock(&cfg80211_mutex);
+
+        return is_all_idle;
+}
+
+static void disconnect_work(struct work_struct *work)
+{
+        if (!cfg80211_is_all_idle())
+                return;
+
+        regulatory_hint_disconnect();
+}
+
+static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
 
 static int cfg80211_conn_scan(struct wireless_dev *wdev)
 {
@@ -658,6 +696,8 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
         wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
         wdev->wext.connect.ssid_len = 0;
 #endif
+
+        schedule_work(&cfg80211_disconnect_work);
 }
 
 void cfg80211_disconnected(struct net_device *dev, u16 reason,