Linux 3.2.102

[pandora-kernel.git] / net / mac80211 / sta_info.h

diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 8c8ce05..556fbcc 100644 (file)
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -138,6 +138,7 @@ struct tid_ampdu_tx {
  * @dialog_token: dialog token for aggregation session
  * @rcu_head: RCU head used for freeing this struct
  * @reorder_lock: serializes access to reorder buffer, see below.
+ * @removed: this session is removed (but might have been found due to RCU)
  *
  * This structure's lifetime is managed by RCU, assignments to
  * the array holding it must hold the aggregation mutex.
@@ -160,6 +161,7 @@ struct tid_ampdu_rx {
        u16 buf_size;
        u16 timeout;
        u8 dialog_token;
+       bool removed;
 };
 
 /**
@@ -216,6 +218,7 @@ struct sta_ampdu_mlme {
  * @drv_unblock_wk: used for driver PS unblocking
  * @listen_interval: listen interval of this station, when we're acting as AP
  * @_flags: STA flags, see &enum ieee80211_sta_info_flags, do not use directly
+ * @ps_lock: used for powersave (when mac80211 is the AP) related locking
  * @ps_tx_buf: buffers (per AC) of frames to transmit to this station
  *     when it leaves power saving state or polls
  * @tx_filtered: buffers (per AC) of frames we already tried to
@@ -284,10 +287,8 @@ struct sta_info {
        /* use the accessors defined below */
        unsigned long _flags;
 
-       /*
-        * STA powersave frame queues, no more than the internal
-        * locking required.
-        */
+       /* STA powersave lock and frame queues */
+       spinlock_t ps_lock;
        struct sk_buff_head ps_tx_buf[IEEE80211_NUM_ACS];
        struct sk_buff_head tx_filtered[IEEE80211_NUM_ACS];
        unsigned long driver_buffered_tids;