staging: r8188eu: remove c2h_evt_clear()

Function c2h_evt_clear() is just a wrapper around rtw_write8().
Remove c2h_evt_clear() and call rtw_write8() directly.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220130111219.6390-2-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_cmd.c

@@ -1331,7 +1331,7 @@ static void c2h_wk_callback(struct work_struct *work)
 	while (!rtw_cbuf_empty(evtpriv->c2h_queue)) {
 		if ((c2h_evt = (struct c2h_evt_hdr *)rtw_cbuf_pop(evtpriv->c2h_queue)) != NULL) {
 			/* This C2H event is read, clear it */
-			c2h_evt_clear(adapter);
+			rtw_write8(adapter, REG_C2HEVT_CLEAR, C2H_EVT_HOST_CLOSE);
 		} else {
 			c2h_evt = kmalloc(16, GFP_KERNEL);
 			if (c2h_evt) {

drivers/staging/r8188eu/hal/hal_com.c

@@ -298,11 +298,6 @@ void hal_init_macaddr(struct adapter *adapter)
 * BITS	 [127:120]	[119:16]      [15:8]		  [7:4]		   [3:0]
 */
 
-void c2h_evt_clear(struct adapter *adapter)
-{
-	rtw_write8(adapter, REG_C2HEVT_CLEAR, C2H_EVT_HOST_CLOSE);
-}
-
 s32 c2h_evt_read(struct adapter *adapter, u8 *buf)
 {
 	s32 ret = _FAIL;
@@ -340,7 +335,7 @@ s32 c2h_evt_read(struct adapter *adapter, u8 *buf)
 	* If this field isn't clear, the FW won't update the next
 	* command message.
 	*/
-	c2h_evt_clear(adapter);
+	rtw_write8(adapter, REG_C2HEVT_CLEAR, C2H_EVT_HOST_CLOSE);
 exit:
 	return ret;
 }

drivers/staging/r8188eu/include/hal_com.h

@@ -150,7 +150,6 @@ bool Hal_MappingOutPipe(struct adapter *pAdapter, u8 NumOutPipe);
 
 void hal_init_macaddr(struct adapter *adapter);
 
-void c2h_evt_clear(struct adapter *adapter);
 s32 c2h_evt_read(struct adapter *adapter, u8 *buf);
 
 #endif /* __HAL_COMMON_H__ */