Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel...

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

diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index c36b191..4b56409 100644 (file)
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -22,12 +22,16 @@
 static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata)
 {
        struct ieee80211_local *local = sdata->local;
+       struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
        local->offchannel_ps_enabled = false;
 
        /* FIXME: what to do when local->pspolling is true? */
 
        del_timer_sync(&local->dynamic_ps_timer);
+       del_timer_sync(&ifmgd->bcn_mon_timer);
+       del_timer_sync(&ifmgd->conn_mon_timer);
+
        cancel_work_sync(&local->dynamic_ps_enable_work);
 
        if (local->hw.conf.flags & IEEE80211_CONF_PS) {
@@ -85,6 +89,9 @@ static void ieee80211_offchannel_ps_disable(struct ieee80211_sub_if_data *sdata)
                mod_timer(&local->dynamic_ps_timer, jiffies +
                          msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));
        }
+
+       ieee80211_sta_reset_beacon_monitor(sdata);
+       ieee80211_sta_reset_conn_monitor(sdata);
 }
 
 void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local)
@@ -112,8 +119,10 @@ void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local)
                 * used from user space controlled off-channel operations.
                 */
                if (sdata->vif.type != NL80211_IFTYPE_STATION &&
-                   sdata->vif.type != NL80211_IFTYPE_MONITOR)
+                   sdata->vif.type != NL80211_IFTYPE_MONITOR) {
+                       set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
                        netif_tx_stop_all_queues(sdata->dev);
+               }
        }
        mutex_unlock(&local->iflist_mtx);
 }
@@ -131,6 +140,7 @@ void ieee80211_offchannel_stop_station(struct ieee80211_local *local)
                        continue;
 
                if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+                       set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
                        netif_tx_stop_all_queues(sdata->dev);
                        if (sdata->u.mgd.associated)
                                ieee80211_offchannel_ps_enable(sdata);
@@ -155,8 +165,20 @@ void ieee80211_offchannel_return(struct ieee80211_local *local,
                                ieee80211_offchannel_ps_disable(sdata);
                }
 
-               if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
+               if (sdata->vif.type != NL80211_IFTYPE_MONITOR) {
+                       clear_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
+                       /*
+                        * This may wake up queues even though the driver
+                        * currently has them stopped. This is not very
+                        * likely, since the driver won't have gotten any
+                        * (or hardly any) new packets while we weren't
+                        * on the right channel, and even if it happens
+                        * it will at most lead to queueing up one more
+                        * packet per queue in mac80211 rather than on
+                        * the interface qdisc.
+                        */
                        netif_tx_wake_all_queues(sdata->dev);
+               }
 
                /* re-enable beaconing */
                if (enable_beaconing &&