ath9k: Remove a few unused variables

axq_linkbuf, axq_aggr_depth, axq_lastdsWithCTS and
axq_gatingds are unused.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index d9bcc3a..2a40fa2 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -198,18 +198,8 @@ struct ath_txq {
        struct list_head axq_q;
        spinlock_t axq_lock;
        u32 axq_depth;
-       u8 axq_aggr_depth;
        bool stopped;
        bool axq_tx_inprogress;
-       struct ath_buf *axq_linkbuf;
-
-       /* first desc of the last descriptor that contains CTS */
-       struct ath_desc *axq_lastdsWithCTS;
-
-       /* final desc of the gating desc that determines whether
-          lastdsWithCTS has been DMA'ed or not */
-       struct ath_desc *axq_gatingds;
-
        struct list_head axq_acq;
 };
 

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 2db0fa8..745d919 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -699,7 +699,6 @@ static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
                /* anchor last desc of aggregate */
                ath9k_hw_set11n_aggr_last(sc->sc_ah, bf->bf_lastbf->bf_desc);
 
-               txq->axq_aggr_depth++;
                ath_tx_txqaddbuf(sc, txq, &bf_q);
                TX_STAT_INC(txq->axq_qnum, a_aggr);
 
@@ -875,8 +874,6 @@ struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype)
                INIT_LIST_HEAD(&txq->axq_acq);
                spin_lock_init(&txq->axq_lock);
                txq->axq_depth = 0;
-               txq->axq_aggr_depth = 0;
-               txq->axq_linkbuf = NULL;
                txq->axq_tx_inprogress = false;
                sc->tx.txqsetup |= 1<<qnum;
        }
@@ -1011,7 +1008,6 @@ void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx)
 
                if (list_empty(&txq->axq_q)) {
                        txq->axq_link = NULL;
-                       txq->axq_linkbuf = NULL;
                        spin_unlock_bh(&txq->axq_lock);
                        break;
                }
@@ -1196,7 +1192,6 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
 
        list_splice_tail_init(head, &txq->axq_q);
        txq->axq_depth++;
-       txq->axq_linkbuf = list_entry(txq->axq_q.prev, struct ath_buf, list);
 
        ath_print(common, ATH_DBG_QUEUE,
                  "qnum: %d, txq depth: %d\n", txq->axq_qnum, txq->axq_depth);
@@ -1965,7 +1960,6 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
                spin_lock_bh(&txq->axq_lock);
                if (list_empty(&txq->axq_q)) {
                        txq->axq_link = NULL;
-                       txq->axq_linkbuf = NULL;
                        spin_unlock_bh(&txq->axq_lock);
                        break;
                }
@@ -1999,10 +1993,6 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
                        spin_unlock_bh(&txq->axq_lock);
                        break;
                }
-               if (bf->bf_desc == txq->axq_lastdsWithCTS)
-                       txq->axq_lastdsWithCTS = NULL;
-               if (ds == txq->axq_gatingds)
-                       txq->axq_gatingds = NULL;
 
                /*
                 * Remove ath_buf's of the same transmit unit from txq,
@@ -2016,9 +2006,6 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
                                &txq->axq_q, lastbf->list.prev);
 
                txq->axq_depth--;
-               if (bf_isaggr(bf))
-                       txq->axq_aggr_depth--;
-
                txok = (ds->ds_txstat.ts_status == 0);
                txq->axq_tx_inprogress = false;
                spin_unlock_bh(&txq->axq_lock);