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Diffstat (limited to 'net/mac80211/agg-tx.c')
-rw-r--r--net/mac80211/agg-tx.c38
1 files changed, 20 insertions, 18 deletions
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index bd765f3..89e238b 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -123,13 +123,18 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1
ieee80211_tx_skb(sdata, skb, 0);
}
-static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
- enum ieee80211_back_parties initiator)
+int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
+ enum ieee80211_back_parties initiator)
{
struct ieee80211_local *local = sta->local;
int ret;
u8 *state;
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Tx BA session stop requested for %pM tid %u\n",
+ sta->sta.addr, tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
state = &sta->ampdu_mlme.tid_state_tx[tid];
if (*state == HT_AGG_STATE_OPERATIONAL)
@@ -143,7 +148,6 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
/* HW shall not deny going back to legacy */
if (WARN_ON(ret)) {
- *state = HT_AGG_STATE_OPERATIONAL;
/*
* We may have pending packets get stuck in this case...
* Not bothering with a workaround for now.
@@ -173,12 +177,14 @@ static void sta_addba_resp_timer_expired(unsigned long data)
/* check if the TID waits for addBA response */
spin_lock_bh(&sta->lock);
- if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+ if ((*state & (HT_ADDBA_REQUESTED_MSK | HT_ADDBA_RECEIVED_MSK)) !=
+ HT_ADDBA_REQUESTED_MSK) {
spin_unlock_bh(&sta->lock);
*state = HT_AGG_STATE_IDLE;
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "timer expired on tid %d but we are not "
- "expecting addBA response there", tid);
+ "(or no longer) expecting addBA response there",
+ tid);
#endif
return;
}
@@ -523,11 +529,6 @@ int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
goto unlock;
}
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Tx BA session stop requested for %pM tid %u\n",
- sta->sta.addr, tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
ret = ___ieee80211_stop_tx_ba_session(sta, tid, initiator);
unlock:
@@ -543,7 +544,7 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
struct sta_info *sta;
int ret = 0;
- if (WARN_ON(!local->ops->ampdu_action))
+ if (!local->ops->ampdu_action)
return -EINVAL;
if (tid >= STA_TID_NUM)
@@ -668,24 +669,23 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
spin_lock_bh(&sta->lock);
- if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
- spin_unlock_bh(&sta->lock);
- return;
- }
+ if (!(*state & HT_ADDBA_REQUESTED_MSK))
+ goto out;
if (mgmt->u.action.u.addba_resp.dialog_token !=
sta->ampdu_mlme.tid_tx[tid]->dialog_token) {
- spin_unlock_bh(&sta->lock);
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid);
#endif /* CONFIG_MAC80211_HT_DEBUG */
- return;
+ goto out;
}
- del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+ del_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid);
#endif /* CONFIG_MAC80211_HT_DEBUG */
+
if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
== WLAN_STATUS_SUCCESS) {
u8 curstate = *state;
@@ -699,5 +699,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
} else {
___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR);
}
+
+ out:
spin_unlock_bh(&sta->lock);
}
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