ath9k: Remove sc_lastrx as we don't use it anywhere

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

2 files changed, 2 insertions, 6 deletions

diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index b6b6868195cd..1faa1effa02c 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -970,7 +970,6 @@ struct ath_softc {
         struct ath_descdma sc_rxdma;
         int sc_rxbufsize;       /* rx size based on mtu */
         u32 *sc_rxlink;         /* link ptr in last RX desc */
-        u64 sc_lastrx;          /* tsf of last rx'd frame */
 
         /* TX */
         struct list_head sc_txbuf;
diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index 87aebf175737..3fc6641e8bf7 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -2309,8 +2309,7 @@ int ath_tx_start(struct ath_softc *sc, struct sk_buff *skb)
 
 void ath_tx_tasklet(struct ath_softc *sc)
 {
-        u64 tsf = ath9k_hw_gettsf64(sc->sc_ah);
-        int i, nacked = 0;
+        int i;
         u32 qcumask = ((1 << ATH9K_NUM_TX_QUEUES) - 1);
 
         ath9k_hw_gettxintrtxqs(sc->sc_ah, &qcumask);
@@ -2320,10 +2319,8 @@ void ath_tx_tasklet(struct ath_softc *sc)
          */
         for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
                 if (ATH_TXQ_SETUP(sc, i) && (qcumask & (1 << i)))
-                        nacked += ath_tx_processq(sc, &sc->sc_txq[i]);
+                        ath_tx_processq(sc, &sc->sc_txq[i]);
         }
-        if (nacked)
-                sc->sc_lastrx = tsf;
 }
 
 void ath_tx_draintxq(struct ath_softc *sc,