diff --git a/drivers/staging/rtl8188eu/core/rtw_iol.c b/drivers/staging/rtl8188eu/core/rtw_iol.c
index 5004b8f554ec..7281bb6996f8 100644
--- a/drivers/staging/rtl8188eu/core/rtw_iol.c
+++ b/drivers/staging/rtl8188eu/core/rtw_iol.c
@@ -92,20 +92,3 @@ int rtw_IOL_append_END_cmd(struct xmit_frame *xmit_frame)
 
 	return rtw_IOL_append_cmds(xmit_frame, (u8 *)&cmd, 4);
 }
-
-void rtw_IOL_cmd_buf_dump(struct adapter  *Adapter, int buf_len, u8 *pbuf)
-{
-	int i;
-	int j = 1;
-
-	pr_info("###### %s ######\n", __func__);
-	for (i = 0; i < buf_len; i++) {
-		printk("%02x-", *(pbuf+i));
-
-		if (j%32 == 0)
-			printk("\n");
-		j++;
-	}
-	printk("\n");
-	pr_info("=============ioreg_cmd len=%d===============\n", buf_len);
-}
diff --git a/drivers/staging/rtl8188eu/include/rtw_iol.h b/drivers/staging/rtl8188eu/include/rtw_iol.h
index 8c298ab51ad5..193f2eb36625 100644
--- a/drivers/staging/rtl8188eu/include/rtw_iol.h
+++ b/drivers/staging/rtl8188eu/include/rtw_iol.h
@@ -66,6 +66,4 @@ int _rtw_IOL_append_WRF_cmd(struct xmit_frame *xmit_frame, u8 rf_path,
 #define rtw_IOL_append_WRF_cmd(xmit_frame, rf_path, addr, value, mask)	\
 	_rtw_IOL_append_WRF_cmd((xmit_frame), (rf_path), (addr), (value), (mask))
 
-void  rtw_IOL_cmd_buf_dump(struct adapter  *Adapter, int buf_len, u8 *pbuf);
-
 #endif /* __RTW_IOL_H_ */