ath9k_htc: Remove OP_PROTECT_ENABLE

CTS protection can be obtained from mac80211 directly.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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

@@ -335,12 +335,11 @@ void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv);
 #define OP_SCANNING		   BIT(1)
 #define OP_LED_ASSOCIATED	   BIT(2)
 #define OP_LED_ON		   BIT(3)
-#define OP_PROTECT_ENABLE	   BIT(4)
-#define OP_ASSOCIATED		   BIT(5)
-#define OP_ENABLE_BEACON	   BIT(6)
-#define OP_LED_DEINIT		   BIT(7)
-#define OP_BT_PRIORITY_DETECTED    BIT(8)
-#define OP_BT_SCAN                 BIT(9)
+#define OP_ASSOCIATED		   BIT(4)
+#define OP_ENABLE_BEACON	   BIT(5)
+#define OP_LED_DEINIT		   BIT(6)
+#define OP_BT_PRIORITY_DETECTED    BIT(7)
+#define OP_BT_SCAN                 BIT(8)
 
 struct ath9k_htc_priv {
 	struct device *dev;

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

@@ -1524,16 +1524,6 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
 		ath9k_htc_beacon_config(priv, vif);
 	}
 
-	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
-		ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n",
-			bss_conf->use_cts_prot);
-		if (bss_conf->use_cts_prot &&
-		    hw->conf.channel->band != IEEE80211_BAND_5GHZ)
-			priv->op_flags |= OP_PROTECT_ENABLE;
-		else
-			priv->op_flags &= ~OP_PROTECT_ENABLE;
-	}
-
 	if (changed & BSS_CHANGED_ERP_SLOT) {
 		if (bss_conf->use_short_slot)
 			ah->slottime = 9;

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

@@ -156,7 +156,7 @@ int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb)
 
 		/* CTS-to-self */
 		if (!(flags & ATH9K_HTC_TX_RTSCTS) &&
-		    (priv->op_flags & OP_PROTECT_ENABLE))
+		    (vif && vif->bss_conf.use_cts_prot))
 			flags |= ATH9K_HTC_TX_CTSONLY;
 
 		tx_hdr.flags = cpu_to_be32(flags);