--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -1078,39 +1078,39 @@ static void ath_lnaconf_alt_good_scan(st
 		antcomb->rssi_lna1 = main_rssi_avg;
 
 	switch ((ant_conf.main_lna_conf << 4) | ant_conf.alt_lna_conf) {
-	case (0x10): /* LNA2 A-B */
+	case 0x10: /* LNA2 A-B */
 		antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
 		antcomb->first_quick_scan_conf =
 			ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
 		antcomb->second_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1;
 		break;
-	case (0x20): /* LNA1 A-B */
+	case 0x20: /* LNA1 A-B */
 		antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
 		antcomb->first_quick_scan_conf =
 			ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
 		antcomb->second_quick_scan_conf = ATH_ANT_DIV_COMB_LNA2;
 		break;
-	case (0x21): /* LNA1 LNA2 */
+	case 0x21: /* LNA1 LNA2 */
 		antcomb->main_conf = ATH_ANT_DIV_COMB_LNA2;
 		antcomb->first_quick_scan_conf =
 			ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
 		antcomb->second_quick_scan_conf =
 			ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
 		break;
-	case (0x12): /* LNA2 LNA1 */
+	case 0x12: /* LNA2 LNA1 */
 		antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1;
 		antcomb->first_quick_scan_conf =
 			ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
 		antcomb->second_quick_scan_conf =
 			ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
 		break;
-	case (0x13): /* LNA2 A+B */
+	case 0x13: /* LNA2 A+B */
 		antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
 		antcomb->first_quick_scan_conf =
 			ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
 		antcomb->second_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1;
 		break;
-	case (0x23): /* LNA1 A+B */
+	case 0x23: /* LNA1 A+B */
 		antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
 		antcomb->first_quick_scan_conf =
 			ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
@@ -1327,40 +1327,40 @@ static void ath_ant_div_conf_fast_divbia
 		/* Adjust the fast_div_bias based on main and alt lna conf */
 		switch ((ant_conf->main_lna_conf << 4) |
 				ant_conf->alt_lna_conf) {
-		case (0x01): /* A-B LNA2 */
+		case 0x01: /* A-B LNA2 */
 			ant_conf->fast_div_bias = 0x3b;
 			break;
-		case (0x02): /* A-B LNA1 */
+		case 0x02: /* A-B LNA1 */
 			ant_conf->fast_div_bias = 0x3d;
 			break;
-		case (0x03): /* A-B A+B */
+		case 0x03: /* A-B A+B */
 			ant_conf->fast_div_bias = 0x1;
 			break;
-		case (0x10): /* LNA2 A-B */
+		case 0x10: /* LNA2 A-B */
 			ant_conf->fast_div_bias = 0x7;
 			break;
-		case (0x12): /* LNA2 LNA1 */
+		case 0x12: /* LNA2 LNA1 */
 			ant_conf->fast_div_bias = 0x2;
 			break;
-		case (0x13): /* LNA2 A+B */
+		case 0x13: /* LNA2 A+B */
 			ant_conf->fast_div_bias = 0x7;
 			break;
-		case (0x20): /* LNA1 A-B */
+		case 0x20: /* LNA1 A-B */
 			ant_conf->fast_div_bias = 0x6;
 			break;
-		case (0x21): /* LNA1 LNA2 */
+		case 0x21: /* LNA1 LNA2 */
 			ant_conf->fast_div_bias = 0x0;
 			break;
-		case (0x23): /* LNA1 A+B */
+		case 0x23: /* LNA1 A+B */
 			ant_conf->fast_div_bias = 0x6;
 			break;
-		case (0x30): /* A+B A-B */
+		case 0x30: /* A+B A-B */
 			ant_conf->fast_div_bias = 0x1;
 			break;
-		case (0x31): /* A+B LNA2 */
+		case 0x31: /* A+B LNA2 */
 			ant_conf->fast_div_bias = 0x3b;
 			break;
-		case (0x32): /* A+B LNA1 */
+		case 0x32: /* A+B LNA1 */
 			ant_conf->fast_div_bias = 0x3d;
 			break;
 		default:
@@ -1370,22 +1370,22 @@ static void ath_ant_div_conf_fast_divbia
 		/* Adjust the fast_div_bias based on main and alt_lna_conf */
 		switch ((ant_conf->main_lna_conf << 4) |
 				ant_conf->alt_lna_conf) {
-		case (0x01): /* A-B LNA2 */
+		case 0x01: /* A-B LNA2 */
 			ant_conf->fast_div_bias = 0x1;
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x02): /* A-B LNA1 */
+		case 0x02: /* A-B LNA1 */
 			ant_conf->fast_div_bias = 0x1;
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x03): /* A-B A+B */
+		case 0x03: /* A-B A+B */
 			ant_conf->fast_div_bias = 0x1;
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x10): /* LNA2 A-B */
+		case 0x10: /* LNA2 A-B */
 			if (!(antcomb->scan) &&
 				(alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO))
 				ant_conf->fast_div_bias = 0x1;
@@ -1394,12 +1394,12 @@ static void ath_ant_div_conf_fast_divbia
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x12): /* LNA2 LNA1 */
+		case 0x12: /* LNA2 LNA1 */
 			ant_conf->fast_div_bias = 0x1;
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x13): /* LNA2 A+B */
+		case 0x13: /* LNA2 A+B */
 			if (!(antcomb->scan) &&
 				(alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO))
 				ant_conf->fast_div_bias = 0x1;
@@ -1408,7 +1408,7 @@ static void ath_ant_div_conf_fast_divbia
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x20): /* LNA1 A-B */
+		case 0x20: /* LNA1 A-B */
 			if (!(antcomb->scan) &&
 				(alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO))
 				ant_conf->fast_div_bias = 0x1;
@@ -1417,12 +1417,12 @@ static void ath_ant_div_conf_fast_divbia
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x21): /* LNA1 LNA2 */
+		case 0x21: /* LNA1 LNA2 */
 			ant_conf->fast_div_bias = 0x1;
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x23): /* LNA1 A+B */
+		case 0x23: /* LNA1 A+B */
 			if (!(antcomb->scan) &&
 				(alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO))
 				ant_conf->fast_div_bias = 0x1;
@@ -1431,17 +1431,17 @@ static void ath_ant_div_conf_fast_divbia
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x30): /* A+B A-B */
+		case 0x30: /* A+B A-B */
 			ant_conf->fast_div_bias = 0x1;
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x31): /* A+B LNA2 */
+		case 0x31: /* A+B LNA2 */
 			ant_conf->fast_div_bias = 0x1;
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
 			break;
-		case (0x32): /* A+B LNA1 */
+		case 0x32: /* A+B LNA1 */
 			ant_conf->fast_div_bias = 0x1;
 			ant_conf->main_gaintb = 0;
 			ant_conf->alt_gaintb = 0;
@@ -1449,9 +1449,7 @@ static void ath_ant_div_conf_fast_divbia
 		default:
 			break;
 		}
-
 	}
-
 }
 
 /* Antenna diversity and combining */