diff --git a/core/rtw_recv.c b/core/rtw_recv.c
index c6aab5b..6c3e00c 100644
--- a/core/rtw_recv.c
+++ b/core/rtw_recv.c
@@ -28,7 +28,6 @@
 #include <ethernet.h>
 #include <usb_ops.h>
 #include <wifi.h>
-#include <circ_buf.h>
 
 void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS);
 
diff --git a/core/rtw_xmit.c b/core/rtw_xmit.c
index ec27b0e..90f9f2b 100644
--- a/core/rtw_xmit.c
+++ b/core/rtw_xmit.c
@@ -23,7 +23,6 @@
 #include <drv_types.h>
 #include <wifi.h>
 #include <osdep_intf.h>
-#include <circ_buf.h>
 #include <ip.h>
 #include <usb_ops.h>
 #include <usb_osintf.h>
diff --git a/hal/rtl8188e_cmd.c b/hal/rtl8188e_cmd.c
index a9f6d25..622a938 100644
--- a/hal/rtl8188e_cmd.c
+++ b/hal/rtl8188e_cmd.c
@@ -24,7 +24,6 @@
 #include <recv_osdep.h>
 #include <cmd_osdep.h>
 #include <mlme_osdep.h>
-#include <circ_buf.h>
 #include <rtw_ioctl_set.h>
 
 #include <rtl8188e_hal.h>
diff --git a/hal/rtl8188eu_recv.c b/hal/rtl8188eu_recv.c
index cdac256..3693192 100644
--- a/hal/rtl8188eu_recv.c
+++ b/hal/rtl8188eu_recv.c
@@ -28,7 +28,6 @@
 
 #include <usb_ops.h>
 #include <wifi.h>
-#include <circ_buf.h>
 
 #include <rtl8188e_hal.h>
 
diff --git a/hal/rtl8188eu_xmit.c b/hal/rtl8188eu_xmit.c
index ab44ffc..5c64cd8 100644
--- a/hal/rtl8188eu_xmit.c
+++ b/hal/rtl8188eu_xmit.c
@@ -22,7 +22,6 @@
 #include <drv_types.h>
 #include <wifi.h>
 #include <osdep_intf.h>
-#include <circ_buf.h>
 #include <usb_ops.h>
 #include <rtl8188e_hal.h>
 
diff --git a/hal/usb_ops_linux.c b/hal/usb_ops_linux.c
index e69e7c6..ad29957 100644
--- a/hal/usb_ops_linux.c
+++ b/hal/usb_ops_linux.c
@@ -23,7 +23,6 @@
 #include <drv_types.h>
 #include <osdep_intf.h>
 #include <usb_ops.h>
-#include <circ_buf.h>
 #include <recv_osdep.h>
 #include <rtl8188e_hal.h>
 
diff --git a/include/circ_buf.h b/include/circ_buf.h
deleted file mode 100644
index b7f96be..0000000
--- a/include/circ_buf.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- *
- ******************************************************************************/
-#ifndef __CIRC_BUF_H_
-#define __CIRC_BUF_H_ 1
-
-
-#endif /* _CIRC_BUF_H_ */
diff --git a/os_dep/xmit_linux.c b/os_dep/xmit_linux.c
index 276561c..952e1b6 100644
--- a/os_dep/xmit_linux.c
+++ b/os_dep/xmit_linux.c
@@ -28,7 +28,6 @@
 #include <mlme_osdep.h>
 #include <xmit_osdep.h>
 #include <osdep_intf.h>
-#include <circ_buf.h>
 #include <usb_osintf.h>
 
 uint rtw_remainder_len(struct pkt_file *pfile)