ath9k_hw: remove a useless function for setting the mac address

ath9k_hw_setmac() only copies the mac address it is called with into
common->macaddr, yet in all call sites, the supplied mac address pointer
is already common->macaddr.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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

@@ -403,9 +403,6 @@ static void ath9k_htc_opmode_init(struct ath9k_htc_priv *priv)
 	/* configure operational mode */
 	ath9k_hw_setopmode(ah);
 
-	/* Handle any link-level address change. */
-	ath9k_hw_setmac(ah, common->macaddr);
-
 	/* calculate and install multicast filter */
 	mfilt[0] = mfilt[1] = ~0;
 	ath9k_hw_setmcastfilter(ah, mfilt[0], mfilt[1]);

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

@@ -2538,12 +2538,6 @@ void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
 }
 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
 
-void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
-{
-	memcpy(ath9k_hw_common(ah)->macaddr, mac, ETH_ALEN);
-}
-EXPORT_SYMBOL(ath9k_hw_setmac);
-
 void ath9k_hw_setopmode(struct ath_hw *ah)
 {
 	ath9k_hw_set_operating_mode(ah, ah->opmode);

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

@@ -885,7 +885,6 @@ void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits);
 bool ath9k_hw_phy_disable(struct ath_hw *ah);
 bool ath9k_hw_disable(struct ath_hw *ah);
 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit);
-void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac);
 void ath9k_hw_setopmode(struct ath_hw *ah);
 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1);
 void ath9k_hw_setbssidmask(struct ath_hw *ah);

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

@@ -116,9 +116,6 @@ static void ath_opmode_init(struct ath_softc *sc)
 	/* configure operational mode */
 	ath9k_hw_setopmode(ah);
 
-	/* Handle any link-level address change. */
-	ath9k_hw_setmac(ah, common->macaddr);
-
 	/* calculate and install multicast filter */
 	mfilt[0] = mfilt[1] = ~0;
 	ath9k_hw_setmcastfilter(ah, mfilt[0], mfilt[1]);