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yaml
---
r: 134494
b: refs/heads/master
c: d75636e
h: refs/heads/master
v: v3
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Johannes Berg authored and John W. Linville committed Feb 13, 2009
1 parent 33f977b commit 524b084
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Showing 2 changed files with 33 additions and 26 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2dace10efb8b761ccbd18d524f3b14d823edf8c0
refs/heads/master: d75636ef9c1af224f1097941879d5a8db7cd04e5
57 changes: 32 additions & 25 deletions trunk/net/mac80211/agg-rx.c
Original file line number Diff line number Diff line change
Expand Up @@ -17,47 +17,32 @@
#include <net/mac80211.h>
#include "ieee80211_i.h"

void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid,
u16 initiator, u16 reason)
static void __ieee80211_sta_stop_rx_ba_session(struct sta_info *sta, u16 tid,
u16 initiator, u16 reason)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_local *local = sta->local;
struct ieee80211_hw *hw = &local->hw;
struct sta_info *sta;
int ret, i;

rcu_read_lock();

sta = sta_info_get(local, ra);
if (!sta) {
rcu_read_unlock();
return;
}
int i;

/* check if TID is in operational state */
spin_lock_bh(&sta->lock);
if (sta->ampdu_mlme.tid_state_rx[tid]
!= HT_AGG_STATE_OPERATIONAL) {
if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_OPERATIONAL) {
spin_unlock_bh(&sta->lock);
rcu_read_unlock();
return;
}

sta->ampdu_mlme.tid_state_rx[tid] =
HT_AGG_STATE_REQ_STOP_BA_MSK |
(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
spin_unlock_bh(&sta->lock);

/* stop HW Rx aggregation. ampdu_action existence
* already verified in session init so we add the BUG_ON */
BUG_ON(!local->ops->ampdu_action);

#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Rx BA session stop requested for %pM tid %u\n",
ra, tid);
sta->sta.addr, tid);
#endif /* CONFIG_MAC80211_HT_DEBUG */

ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
&sta->sta, tid, NULL);
if (ret)
if (local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
&sta->sta, tid, NULL))
printk(KERN_DEBUG "HW problem - can not stop rx "
"aggregation for tid %d\n", tid);

Expand All @@ -67,7 +52,8 @@ void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *r

/* check if this is a self generated aggregation halt */
if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER)
ieee80211_send_delba(sdata, ra, tid, 0, reason);
ieee80211_send_delba(sta->sdata, sta->sta.addr,
tid, 0, reason);

/* free the reordering buffer */
for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) {
Expand All @@ -90,6 +76,27 @@ void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *r

sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE;
spin_unlock_bh(&sta->lock);
}

void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid,
u16 initiator, u16 reason)
{
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;

/* stop HW Rx aggregation. ampdu_action existence
* already verified in session init so we add the BUG_ON */
BUG_ON(!local->ops->ampdu_action);

rcu_read_lock();

sta = sta_info_get(local, ra);
if (!sta) {
rcu_read_unlock();
return;
}

__ieee80211_sta_stop_rx_ba_session(sta, tid, initiator, reason);

rcu_read_unlock();
}
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