diff --git a/drivers/staging/r8188eu/core/rtw_wlan_util.c b/drivers/staging/r8188eu/core/rtw_wlan_util.c
index 665b077190bc..f32401deae9a 100644
--- a/drivers/staging/r8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/r8188eu/core/rtw_wlan_util.c
@@ -1276,13 +1276,13 @@ void update_IOT_info(struct adapter *padapter)
 		pmlmeinfo->turboMode_cts2self = 0;
 		pmlmeinfo->turboMode_rtsen = 1;
 		/* disable high power */
-		Switch_DM_Func(padapter, (~DYNAMIC_BB_DYNAMIC_TXPWR), false);
+		Switch_DM_Func(padapter, (u32)(~DYNAMIC_BB_DYNAMIC_TXPWR), false);
 		break;
 	case HT_IOT_PEER_REALTEK:
 		/* rtw_write16(padapter, 0x4cc, 0xffff); */
 		/* rtw_write16(padapter, 0x546, 0x01c0); */
 		/* disable high power */
-		Switch_DM_Func(padapter, (~DYNAMIC_BB_DYNAMIC_TXPWR), false);
+		Switch_DM_Func(padapter, (u32)(~DYNAMIC_BB_DYNAMIC_TXPWR), false);
 		break;
 	default:
 		pmlmeinfo->turboMode_cts2self = 0;
diff --git a/drivers/staging/r8188eu/include/wifi.h b/drivers/staging/r8188eu/include/wifi.h
index c331be19ff83..299553351246 100644
--- a/drivers/staging/r8188eu/include/wifi.h
+++ b/drivers/staging/r8188eu/include/wifi.h
@@ -4,14 +4,9 @@
 #ifndef _WIFI_H_
 #define _WIFI_H_
 
+#include <linux/bits.h>
 #include <linux/ieee80211.h>
 
-#ifdef BIT
-/* error	"BIT define occurred earlier elsewhere!\n" */
-#undef BIT
-#endif
-#define BIT(x)	(1 << (x))
-
 #define WLAN_ETHHDR_LEN		14
 #define WLAN_HDR_A3_LEN		24
 #define WLAN_HDR_A3_QOS_LEN	26