Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[cascardo/linux.git] / net / mac80211 / mlme.c

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 182cda6..c99237c 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1763,6 +1763,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
                ifmgd->ave_beacon_signal = rx_status->signal * 16;
                ifmgd->last_cqm_event_signal = 0;
                ifmgd->count_beacon_signal = 1;
+               ifmgd->last_ave_beacon_signal = 0;
        } else {
                ifmgd->ave_beacon_signal =
                        (IEEE80211_SIGNAL_AVE_WEIGHT * rx_status->signal * 16 +
@@ -1770,6 +1771,28 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
                         ifmgd->ave_beacon_signal) / 16;
                ifmgd->count_beacon_signal++;
        }
+
+       if (ifmgd->rssi_min_thold != ifmgd->rssi_max_thold &&
+           ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) {
+               int sig = ifmgd->ave_beacon_signal;
+               int last_sig = ifmgd->last_ave_beacon_signal;
+
+               /*
+                * if signal crosses either of the boundaries, invoke callback
+                * with appropriate parameters
+                */
+               if (sig > ifmgd->rssi_max_thold &&
+                   (last_sig <= ifmgd->rssi_min_thold || last_sig == 0)) {
+                       ifmgd->last_ave_beacon_signal = sig;
+                       drv_rssi_callback(local, RSSI_EVENT_HIGH);
+               } else if (sig < ifmgd->rssi_min_thold &&
+                          (last_sig >= ifmgd->rssi_max_thold ||
+                          last_sig == 0)) {
+                       ifmgd->last_ave_beacon_signal = sig;
+                       drv_rssi_callback(local, RSSI_EVENT_LOW);
+               }
+       }
+
        if (bss_conf->cqm_rssi_thold &&
            ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT &&
            !(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
@@ -2029,7 +2052,7 @@ static void ieee80211_sta_timer(unsigned long data)
 }
 
 static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
-                                         u8 *bssid)
+                                         u8 *bssid, u8 reason)
 {
        struct ieee80211_local *local = sdata->local;
        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -2047,8 +2070,7 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
         * but that's not a problem.
         */
        ieee80211_send_deauth_disassoc(sdata, bssid,
-                       IEEE80211_STYPE_DEAUTH,
-                       WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
+                       IEEE80211_STYPE_DEAUTH, reason,
                        NULL, true);
        mutex_lock(&ifmgd->mtx);
 }
@@ -2094,7 +2116,8 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
                                            " AP %pM, disconnecting.\n",
                                            sdata->name, bssid);
 #endif
-                               ieee80211_sta_connection_lost(sdata, bssid);
+                               ieee80211_sta_connection_lost(sdata, bssid,
+                                       WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
                        }
                } else if (time_is_after_jiffies(ifmgd->probe_timeout))
                        run_again(ifmgd, ifmgd->probe_timeout);
@@ -2106,7 +2129,8 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
                                    sdata->name,
                                    bssid, probe_wait_ms);
 #endif
-                       ieee80211_sta_connection_lost(sdata, bssid);
+                       ieee80211_sta_connection_lost(sdata, bssid,
+                               WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
                } else if (ifmgd->probe_send_count < max_tries) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
                        wiphy_debug(local->hw.wiphy,
@@ -2128,7 +2152,8 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
                                    sdata->name,
                                    bssid, probe_wait_ms);
 
-                       ieee80211_sta_connection_lost(sdata, bssid);
+                       ieee80211_sta_connection_lost(sdata, bssid,
+                               WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
                }
        }
 
@@ -2215,6 +2240,27 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
 {
        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
+       if (!ifmgd->associated)
+               return;
+
+       if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) {
+               sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME;
+               mutex_lock(&ifmgd->mtx);
+               if (ifmgd->associated) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+                       wiphy_debug(sdata->local->hw.wiphy,
+                                   "%s: driver requested disconnect after resume.\n",
+                                   sdata->name);
+#endif
+                       ieee80211_sta_connection_lost(sdata,
+                               ifmgd->associated->bssid,
+                               WLAN_REASON_UNSPECIFIED);
+                       mutex_unlock(&ifmgd->mtx);
+                       return;
+               }
+               mutex_unlock(&ifmgd->mtx);
+       }
+
        if (test_and_clear_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running))
                add_timer(&ifmgd->timer);
        if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running))