staging: wilc1000: Optimize code of wilc_get_chipid function

This patch optimize code of wilc_get_chipid function.
u8 type changed to boolean type and removed unnecessary if statement.
Signed-off-by: Chris Park <chris.park@atmel.com>
Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/linux_wlan.c

@@ -388,7 +388,7 @@ int wilc_wlan_get_firmware(struct net_device *dev)
 	vif = netdev_priv(dev);
 	wilc = vif->wilc;
 
-	chip_id = wilc_get_chipid(wilc, 0);
+	chip_id = wilc_get_chipid(wilc, false);
 
 	if (chip_id < 0x1003a0)
 		firmware = FIRMWARE_1002;
@@ -475,7 +475,7 @@ static int linux_wlan_init_test_config(struct net_device *dev,
 	wilc_get_mac_address(vif, mac_add);
 
 	netdev_dbg(dev, "MAC address is : %pM\n", mac_add);
-	wilc_get_chipid(wilc, 0);
+	wilc_get_chipid(wilc, false);
 
 	*(int *)c_val = 1;
 

drivers/staging/wilc1000/wilc_wlan.c

@@ -1441,36 +1441,31 @@ static u32 init_chip(struct net_device *dev)
 	return ret;
 }
 
-u32 wilc_get_chipid(struct wilc *wilc, u8 update)
+u32 wilc_get_chipid(struct wilc *wilc, bool update)
 {
 	static u32 chipid;
 	u32 tempchipid = 0;
-	u32 rfrevid;
+	u32 rfrevid = 0;
 
-	if (chipid == 0 || update != 0) {
+	if (chipid == 0 || update) {
 		wilc->hif_func->hif_read_reg(wilc, 0x1000, &tempchipid);
 		wilc->hif_func->hif_read_reg(wilc, 0x13f4, &rfrevid);
 		if (!ISWILC1000(tempchipid)) {
 			chipid = 0;
-			goto _fail_;
+			return chipid;
 		}
 		if (tempchipid == 0x1002a0) {
-			if (rfrevid == 0x1) {
-			} else {
+			if (rfrevid != 0x1)
 				tempchipid = 0x1002a1;
-			}
 		} else if (tempchipid == 0x1002b0) {
-			if (rfrevid == 3) {
-			} else if (rfrevid == 4) {
+			if (rfrevid == 0x4)
 				tempchipid = 0x1002b1;
-			} else {
+			else if (rfrevid != 0x3)
 				tempchipid = 0x1002b2;
-			}
 		}
 
 		chipid = tempchipid;
 	}
-_fail_:
 	return chipid;
 }
 

drivers/staging/wilc1000/wilc_wlan_if.h

@@ -921,6 +921,6 @@ struct wilc;
 int wilc_wlan_init(struct net_device *dev);
 void wilc_bus_set_max_speed(void);
 void wilc_bus_set_default_speed(void);
-u32 wilc_get_chipid(struct wilc *wilc, u8 update);
+u32 wilc_get_chipid(struct wilc *wilc, bool update);
 
 #endif