Merge branch 'sched/urgent' into sched/core

Merge reason: Merge dependent fix, update to latest -rc.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 24 insertions, 0 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 78a6e924c7e1..3848140313f5 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -269,6 +269,7 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
                                    enum queue_stop_reason reason)
 {
         struct ieee80211_local *local = hw_to_local(hw);
+        struct ieee80211_sub_if_data *sdata;
 
         if (WARN_ON(queue >= hw->queues))
                 return;
@@ -281,6 +282,11 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 
         if (!skb_queue_empty(&local->pending[queue]))
                 tasklet_schedule(&local->tx_pending_tasklet);
+
+        rcu_read_lock();
+        list_for_each_entry_rcu(sdata, &local->interfaces, list)
+                netif_tx_wake_queue(netdev_get_tx_queue(sdata->dev, queue));
+        rcu_read_unlock();
 }
 
 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
@@ -305,11 +311,17 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
                                    enum queue_stop_reason reason)
 {
         struct ieee80211_local *local = hw_to_local(hw);
+        struct ieee80211_sub_if_data *sdata;
 
         if (WARN_ON(queue >= hw->queues))
                 return;
 
         __set_bit(reason, &local->queue_stop_reasons[queue]);
+
+        rcu_read_lock();
+        list_for_each_entry_rcu(sdata, &local->interfaces, list)
+                netif_tx_stop_queue(netdev_get_tx_queue(sdata->dev, queue));
+        rcu_read_unlock();
 }
 
 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
@@ -1039,7 +1051,19 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 
         /* restart hardware */
         if (local->open_count) {
+                /*
+                 * Upon resume hardware can sometimes be goofy due to
+                 * various platform / driver / bus issues, so restarting
+                 * the device may at times not work immediately. Propagate
+                 * the error.
+                 */
                 res = drv_start(local);
+                if (res) {
+                        WARN(local->suspended, "Harware became unavailable "
+                             "upon resume. This is could be a software issue"
+                             "prior to suspend or a harware issue\n");
+                        return res;
+                }
 
                 ieee80211_led_radio(local, true);
         }