diff --git a/drivers/staging/rtl8723bs/os_dep/sdio_intf.c b/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
index 8f8549eee23e..185919b6963f 100644
--- a/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
+++ b/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
@@ -483,7 +483,6 @@ static void rtw_dev_remove(struct sdio_func *func)
 }
 
 extern int pm_netdev_open(struct net_device *pnetdev, u8 bnormal);
-extern int pm_netdev_close(struct net_device *pnetdev, u8 bnormal);
 
 static int rtw_sdio_suspend(struct device *dev)
 {