ath9k: Turn ath_txq_lock/unlock() into static inlines.

These are one-line functions that just call spin_lock/unlock_bh(); turn
them into static inlines to avoid the function call overhead.
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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

@@ -569,6 +569,15 @@ static inline void ath_chanctx_check_active(struct ath_softc *sc,
 
 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
 
+static inline void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
+{
+	spin_lock_bh(&txq->axq_lock);
+}
+static inline void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
+{
+	spin_unlock_bh(&txq->axq_lock);
+}
+
 void ath_startrecv(struct ath_softc *sc);
 bool ath_stoprecv(struct ath_softc *sc);
 u32 ath_calcrxfilter(struct ath_softc *sc);
@@ -576,8 +585,6 @@ int ath_rx_init(struct ath_softc *sc, int nbufs);
 void ath_rx_cleanup(struct ath_softc *sc);
 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
-void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq);
-void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq);
 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
 bool ath_drain_all_txq(struct ath_softc *sc);

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

@@ -97,18 +97,6 @@ static void ath_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 	dev_kfree_skb(skb);
 }
 
-void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
-	__acquires(&txq->axq_lock)
-{
-	spin_lock_bh(&txq->axq_lock);
-}
-
-void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
-	__releases(&txq->axq_lock)
-{
-	spin_unlock_bh(&txq->axq_lock);
-}
-
 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq)
 	__releases(&txq->axq_lock)
 {