diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 7b69d9ad75e9..32d0e101d0c2 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -445,7 +445,39 @@ static void update_TSF(struct mlme_ext_priv *pmlmeext, u8 *pframe)
 
 static void correct_TSF(struct adapter *padapter)
 {
-	SetHwReg8188EU(padapter, HW_VAR_CORRECT_TSF, NULL);
+	u8 reg;
+	int res;
+	u64 tsf;
+	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
+	struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
+
+	tsf = pmlmeext->TSFValue - do_div(pmlmeext->TSFValue,
+					  pmlmeinfo->bcn_interval * 1024) - 1024; /* us */
+
+	if (((pmlmeinfo->state & 0x03) == WIFI_FW_ADHOC_STATE) ||
+	    ((pmlmeinfo->state & 0x03) == WIFI_FW_AP_STATE))
+		rtw_stop_tx_beacon(padapter);
+
+	/* disable related TSF function */
+	res = rtw_read8(padapter, REG_BCN_CTRL, &reg);
+	if (res)
+		return;
+
+	rtw_write8(padapter, REG_BCN_CTRL, reg & (~BIT(3)));
+
+	rtw_write32(padapter, REG_TSFTR, tsf);
+	rtw_write32(padapter, REG_TSFTR + 4, tsf >> 32);
+
+	/* enable related TSF function */
+	res = rtw_read8(padapter, REG_BCN_CTRL, &reg);
+	if (res)
+		return;
+
+	rtw_write8(padapter, REG_BCN_CTRL, reg | BIT(3));
+
+	if (((pmlmeinfo->state & 0x03) == WIFI_FW_ADHOC_STATE) ||
+	    ((pmlmeinfo->state & 0x03) == WIFI_FW_AP_STATE))
+		rtw_resume_tx_beacon(padapter);
 }
 
 /****************************************************************************
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index b8fd73ac8f7c..ff074d246dab 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -963,51 +963,6 @@ void ReadAdapterInfo8188EU(struct adapter *Adapter)
 	kfree(efuse_buf);
 }
 
-void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
-{
-	u8 reg;
-	int res;
-
-	switch (variable) {
-	case HW_VAR_CORRECT_TSF:
-		{
-			u64	tsf;
-			struct mlme_ext_priv	*pmlmeext = &Adapter->mlmeextpriv;
-			struct mlme_ext_info	*pmlmeinfo = &pmlmeext->mlmext_info;
-
-			tsf = pmlmeext->TSFValue - do_div(pmlmeext->TSFValue,
-							  pmlmeinfo->bcn_interval * 1024) - 1024; /* us */
-
-			if (((pmlmeinfo->state & 0x03) == WIFI_FW_ADHOC_STATE) || ((pmlmeinfo->state & 0x03) == WIFI_FW_AP_STATE))
-				rtw_stop_tx_beacon(Adapter);
-
-			/* disable related TSF function */
-			res = rtw_read8(Adapter, REG_BCN_CTRL, &reg);
-			if (res)
-				return;
-
-			rtw_write8(Adapter, REG_BCN_CTRL, reg & (~BIT(3)));
-
-			rtw_write32(Adapter, REG_TSFTR, tsf);
-			rtw_write32(Adapter, REG_TSFTR + 4, tsf >> 32);
-
-			/* enable related TSF function */
-			res = rtw_read8(Adapter, REG_BCN_CTRL, &reg);
-			if (res)
-				return;
-
-			rtw_write8(Adapter, REG_BCN_CTRL, reg | BIT(3));
-
-			if (((pmlmeinfo->state & 0x03) == WIFI_FW_ADHOC_STATE) || ((pmlmeinfo->state & 0x03) == WIFI_FW_AP_STATE))
-				rtw_resume_tx_beacon(Adapter);
-		}
-		break;
-	default:
-		break;
-	}
-
-}
-
 void UpdateHalRAMask8188EUsb(struct adapter *adapt, u32 mac_id, u8 rssi_level)
 {
 	u8 init_rate = 0;
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index e1dfd621a5cb..ab6856d8a090 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -8,10 +8,6 @@
 #include "drv_types.h"
 #include "Hal8188EPhyCfg.h"
 
-enum hw_variables {
-	HW_VAR_CORRECT_TSF,
-};
-
 typedef s32 (*c2h_id_filter)(u8 id);
 
 void rtl8188eu_interface_configure(struct adapter *adapt);
@@ -32,8 +28,6 @@ int rtl8188e_IOL_exec_cmds_sync(struct adapter *adapter,
 
 unsigned int rtl8188eu_inirp_init(struct adapter *Adapter);
 
-void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val);
-
 uint rtw_hal_init(struct adapter *padapter);
 uint rtw_hal_deinit(struct adapter *padapter);
 void rtw_hal_stop(struct adapter *padapter);