staging: r8188eu: remove HW_VAR_CHK_HI_QUEUE_EMPTY from GetHwReg8188EU()

The HW_VAR_CHK_HI_QUEUE_EMPTY from GetHwReg8188EU() just calls
rtw_read32(). Remove HW_VAR_CHK_HI_QUEUE_EMPTY from GetHwReg8188EU()
and call rtw_read32() directly. Move the call to a new function to
indicate what it actually does. This is part of the ongoing effort to
get rid of the unwanted hal layer.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220331130522.6648-4-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_cmd.c

@@ -1199,6 +1199,11 @@ u8 rtw_ps_cmd(struct adapter *padapter)
 	return res;
 }
 
+static bool rtw_is_hi_queue_empty(struct adapter *adapter)
+{
+	return (rtw_read32(adapter, REG_HGQ_INFORMATION) & 0x0000ff00) == 0;
+}
+
 static void rtw_chk_hi_queue_hdl(struct adapter *padapter)
 {
 	int cnt = 0;
@@ -1210,12 +1215,7 @@ static void rtw_chk_hi_queue_hdl(struct adapter *padapter)
 		return;
 
 	if (psta_bmc->sleepq_len == 0) {
-		u8 val = 0;
-
-		/* while ((rtw_read32(padapter, 0x414)&0x00ffff00)!= 0) */
-		/* while ((rtw_read32(padapter, 0x414)&0x0000ff00)!= 0) */
-
-		GetHwReg8188EU(padapter, HW_VAR_CHK_HI_QUEUE_EMPTY, &val);
+		bool val = rtw_is_hi_queue_empty(padapter);
 
 		while (!val) {
 			msleep(100);
@@ -1225,7 +1225,7 @@ static void rtw_chk_hi_queue_hdl(struct adapter *padapter)
 			if (cnt > 10)
 				break;
 
-			GetHwReg8188EU(padapter, HW_VAR_CHK_HI_QUEUE_EMPTY, &val);
+			val = rtw_is_hi_queue_empty(padapter);
 		}
 
 		if (cnt <= 10) {

drivers/staging/r8188eu/hal/usb_halinit.c

@@ -1310,9 +1310,6 @@ void GetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 			}
 		}
 		break;
-	case HW_VAR_CHK_HI_QUEUE_EMPTY:
-		*val = ((rtw_read32(Adapter, REG_HGQ_INFORMATION) & 0x0000ff00) == 0) ? true : false;
-		break;
 	default:
 		break;
 	}

drivers/staging/r8188eu/include/hal_intf.h

@@ -33,7 +33,6 @@ enum hw_variables {
 	HW_VAR_FIFO_CLEARN_UP,
 	HW_VAR_RPT_TIMER_SETTING,
 	HW_VAR_H2C_MEDIA_STATUS_RPT,
-	HW_VAR_CHK_HI_QUEUE_EMPTY,
 };
 
 enum hal_def_variable {