diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
index fb57cc8b2e471..7a71f063015ab 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
@@ -1628,17 +1628,17 @@ static void btc8723b2ant_action_wifi_link_process(struct btc_coexist
 static bool btc8723b2ant_action_wifi_idle_process(struct btc_coexist *btcoexist)
 {
 	struct rtl_priv *rtlpriv = btcoexist->adapter;
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1;
 	u8 ap_num = 0;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 		 coex_dm->switch_thres_offset - coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 	      coex_dm->switch_thres_offset - coex_dm->switch_thres_offset;
-	bt_rssi_state = btc8723b2ant_bt_rssi_state(btcoexist, 2, tmp, 0);
+	btc8723b2ant_bt_rssi_state(btcoexist, 2, tmp, 0);
 
 	btcoexist->btc_get(btcoexist, BTC_GET_U1_AP_NUM, &ap_num);
 
@@ -2764,10 +2764,10 @@ static void btc8723b2ant_tdma_duration_adjust(struct btc_coexist *btcoexist,
 /* SCO only or SCO+PAN(HS) */
 static void btc8723b2ant_action_sco(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, bt_rssi_state;
+	u8 bt_rssi_state;
 	u32 wifi_bw;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	bt_rssi_state = btc8723b2ant_bt_rssi_state(
 		btcoexist, 2, BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 					       coex_dm->switch_thres_offset,
@@ -2807,12 +2807,12 @@ static void btc8723b2ant_action_sco(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_hid(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, bt_rssi_state;
+	u8 bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	bt_rssi_state = btc8723b2ant_bt_rssi_state(btcoexist, 2, tmp, 0);
 
 	btcoexist->btc_set_rf_reg(btcoexist, BTC_RF_A, 0x1, 0xfffff, 0x0);
@@ -2852,13 +2852,13 @@ static void btc8723b2ant_action_hid(struct btc_coexist *btcoexist)
 /* A2DP only / PAN(EDR) only/ A2DP+PAN(HS) */
 static void btc8723b2ant_action_a2dp(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 ap_num = 0;
 	u8 tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2, 40, 0);
 	bt_rssi_state = btc8723b2ant_bt_rssi_state(btcoexist, 2, tmp, 0);
 
@@ -2926,12 +2926,12 @@ static void btc8723b2ant_action_a2dp(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_a2dp_pan_hs(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -2973,12 +2973,12 @@ static void btc8723b2ant_action_a2dp_pan_hs(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_pan_edr(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -3025,13 +3025,13 @@ static void btc8723b2ant_action_pan_edr(struct btc_coexist *btcoexist)
 /* PAN(HS) only */
 static void btc8723b2ant_action_pan_hs(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
-	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
@@ -3063,12 +3063,12 @@ static void btc8723b2ant_action_pan_hs(struct btc_coexist *btcoexist)
 /* PAN(EDR) + A2DP */
 static void btc8723b2ant_action_pan_edr_a2dp(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -3118,12 +3118,12 @@ static void btc8723b2ant_action_pan_edr_a2dp(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_pan_edr_hid(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -3182,12 +3182,12 @@ static void btc8723b2ant_action_pan_edr_hid(struct btc_coexist *btcoexist)
 /* HID + A2DP + PAN(EDR) */
 static void btc8723b2ant_action_hid_a2dp_pan_edr(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
@@ -3241,13 +3241,13 @@ static void btc8723b2ant_action_hid_a2dp_pan_edr(struct btc_coexist *btcoexist)
 
 static void btc8723b2ant_action_hid_a2dp(struct btc_coexist *btcoexist)
 {
-	u8 wifi_rssi_state, wifi_rssi_state1, bt_rssi_state;
+	u8 wifi_rssi_state1, bt_rssi_state;
 	u32 wifi_bw;
 	u8 ap_num = 0;
 	u8 tmp = BT_8723B_2ANT_WIFI_RSSI_COEXSWITCH_THRES -
 			coex_dm->switch_thres_offset;
 
-	wifi_rssi_state = btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
+	btc8723b2ant_wifi_rssi_state(btcoexist, 0, 2, 15, 0);
 	wifi_rssi_state1 = btc8723b2ant_wifi_rssi_state(btcoexist, 1, 2,
 							tmp, 0);
 	tmp = BT_8723B_2ANT_BT_RSSI_COEXSWITCH_THRES -
