diff --git a/drivers/staging/rtl8723au/core/rtw_efuse.c b/drivers/staging/rtl8723au/core/rtw_efuse.c
index bf27ea4cf9ee..906b5782d165 100644
--- a/drivers/staging/rtl8723au/core/rtw_efuse.c
+++ b/drivers/staging/rtl8723au/core/rtw_efuse.c
@@ -274,7 +274,6 @@ u8 EFUSE_Read1Byte23a(struct rtw_adapter *Adapter, u16 Address)
 }
 
 /* Copy from WMAC fot EFUSE write 1 byte. */
-void EFUSE_Write1Byte(struct rtw_adapter *Adapter, u16 Address, u8 Value);
 void EFUSE_Write1Byte(struct rtw_adapter *Adapter, u16 Address, u8 Value)
 {
 	u8	Bytetemp = {0x00};
@@ -502,7 +501,6 @@ int rtw_BT_efuse_map_read23a(struct rtw_adapter *padapter,
 }
 
 /* Read All Efuse content */
-void Efuse_ReadAllMap(struct rtw_adapter *pAdapter, u8 efuseType, u8 *Efuse);
 void Efuse_ReadAllMap(struct rtw_adapter *pAdapter, u8 efuseType, u8 *Efuse)
 {
 	u16	mapLen = 0;