ath9k: Remove unnecessary count for addba attempt

mac80211 already has one to keep track of number of failure
addba attempts.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -272,7 +272,6 @@ struct ath_atx_tid {
 	int sched;
 	int paused;
 	u8 state;
-	int addba_exchangeattempts;
 };
 
 struct ath_atx_ac {

drivers/net/wireless/ath/ath9k/xmit.c

@@ -402,7 +402,6 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
 	if (tid->state & AGGR_CLEANUP) {
 		if (tid->baw_head == tid->baw_tail) {
 			tid->state &= ~AGGR_ADDBA_COMPLETE;
-			tid->addba_exchangeattempts = 0;
 			tid->state &= ~AGGR_CLEANUP;
 
 			/* send buffered frames as singles */
@@ -707,7 +706,6 @@ int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
 
 	if (!(txtid->state & AGGR_ADDBA_COMPLETE)) {
 		txtid->state &= ~AGGR_ADDBA_PROGRESS;
-		txtid->addba_exchangeattempts = 0;
 		return 0;
 	}
 
@@ -735,7 +733,6 @@ int ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
 		txtid->state |= AGGR_CLEANUP;
 	} else {
 		txtid->state &= ~AGGR_ADDBA_COMPLETE;
-		txtid->addba_exchangeattempts = 0;
 		ath_tx_flush_tid(sc, txtid);
 	}
 
@@ -768,14 +765,8 @@ bool ath_tx_aggr_check(struct ath_softc *sc, struct ath_node *an, u8 tidno)
 
 	txtid = ATH_AN_2_TID(an, tidno);
 
-	if (!(txtid->state & AGGR_ADDBA_COMPLETE)) {
-		if (!(txtid->state & AGGR_ADDBA_PROGRESS) &&
-		    (txtid->addba_exchangeattempts < ADDBA_EXCHANGE_ATTEMPTS)) {
-			txtid->addba_exchangeattempts++;
+	if (!(txtid->state & (AGGR_ADDBA_COMPLETE | AGGR_ADDBA_PROGRESS)))
 			return true;
-		}
-	}
-
 	return false;
 }
 
@@ -2110,7 +2101,6 @@ void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an)
 		tid->ac = &an->ac[acno];
 		tid->state &= ~AGGR_ADDBA_COMPLETE;
 		tid->state &= ~AGGR_ADDBA_PROGRESS;
-		tid->addba_exchangeattempts = 0;
 	}
 
 	for (acno = 0, ac = &an->ac[acno];
@@ -2167,7 +2157,6 @@ void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an)
 					tid->sched = false;
 					ath_tid_drain(sc, txq, tid);
 					tid->state &= ~AGGR_ADDBA_COMPLETE;
-					tid->addba_exchangeattempts = 0;
 					tid->state &= ~AGGR_CLEANUP;
 				}
 			}