staging: r8188eu: remove rtw_cbuf_push()

Function rtw_cbuf_push() is not used, remove it.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210922200420.9693-27-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/osdep_service.h

@@ -294,7 +294,6 @@ struct rtw_cbuf {
 
 bool rtw_cbuf_full(struct rtw_cbuf *cbuf);
 bool rtw_cbuf_empty(struct rtw_cbuf *cbuf);
-bool rtw_cbuf_push(struct rtw_cbuf *cbuf, void *buf);
 void *rtw_cbuf_pop(struct rtw_cbuf *cbuf);
 struct rtw_cbuf *rtw_cbuf_alloc(u32 size);
 int wifirate2_ratetbl_inx(unsigned char rate);

drivers/staging/r8188eu/os_dep/osdep_service.c

@@ -245,27 +245,6 @@ inline bool rtw_cbuf_empty(struct rtw_cbuf *cbuf)
 	return (cbuf->write == cbuf->read) ? true : false;
 }
 
-/**
- * rtw_cbuf_push - push a pointer into cbuf
- * @cbuf: pointer of struct rtw_cbuf
- * @buf: pointer to push in
- *
- * Lock free operation, be careful of the use scheme
- * Returns: true push success
- */
-bool rtw_cbuf_push(struct rtw_cbuf *cbuf, void *buf)
-{
-	if (rtw_cbuf_full(cbuf))
-		return _FAIL;
-
-	if (0)
-		DBG_88E("%s on %u\n", __func__, cbuf->write);
-	cbuf->bufs[cbuf->write] = buf;
-	cbuf->write = (cbuf->write + 1) % cbuf->size;
-
-	return _SUCCESS;
-}
-
 /**
  * rtw_cbuf_pop - pop a pointer from cbuf
  * @cbuf: pointer of struct rtw_cbuf