staging: rtl8188eu: simplify Hal_EfuseParseMACAddr_8188EU

The hwinfo and AutoLoadFail parameters can be obtained from
struct adapter, there's no need to pass them as separate
function parameters.

Use memcpy instead of bytewise copy if we have to fall back to the
hard-coded mac address.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210725155902.32433-4-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/hal/usb_halinit.c

@@ -950,19 +950,16 @@ static void Hal_EfuseParsePIDVID_8188EU(struct adapter *adapt, u8 *hwinfo, bool
 	}
 }
 
-static void Hal_EfuseParseMACAddr_8188EU(struct adapter *adapt, u8 *hwinfo, bool AutoLoadFail)
+static void Hal_EfuseParseMACAddr_8188EU(struct adapter *adapt)
 {
-	u16 i;
-	u8 sMacAddr[6] = {0x00, 0xE0, 0x4C, 0x81, 0x88, 0x02};
+	u8 sMacAddr[] = {0x00, 0xE0, 0x4C, 0x81, 0x88, 0x02};
 	struct eeprom_priv *eeprom = GET_EEPROM_EFUSE_PRIV(adapt);
+	u8 *hwinfo = eeprom->efuse_eeprom_data;
 
-	if (AutoLoadFail) {
-		for (i = 0; i < 6; i++)
-			eeprom->mac_addr[i] = sMacAddr[i];
-	} else {
-		/* Read Permanent MAC address */
+	if (eeprom->bautoload_fail_flag)
+		memcpy(eeprom->mac_addr, sMacAddr, sizeof(sMacAddr));
+	else
 		memcpy(eeprom->mac_addr, &hwinfo[EEPROM_MAC_ADDR_88EU], ETH_ALEN);
-	}
 }
 
 static void readAdapterInfo_8188EU(struct adapter *adapt)
@@ -972,7 +969,7 @@ static void readAdapterInfo_8188EU(struct adapter *adapt)
 	/* parse the eeprom/efuse content */
 	Hal_EfuseParseIDCode88E(adapt, eeprom->efuse_eeprom_data);
 	Hal_EfuseParsePIDVID_8188EU(adapt, eeprom->efuse_eeprom_data, eeprom->bautoload_fail_flag);
-	Hal_EfuseParseMACAddr_8188EU(adapt, eeprom->efuse_eeprom_data, eeprom->bautoload_fail_flag);
+	Hal_EfuseParseMACAddr_8188EU(adapt);
 
 	Hal_ReadPowerSavingMode88E(adapt, eeprom->efuse_eeprom_data, eeprom->bautoload_fail_flag);
 	Hal_ReadTxPowerInfo88E(adapt, eeprom->efuse_eeprom_data, eeprom->bautoload_fail_flag);