else
                return _SUCCESS;
 }
-
-void _rtw_read_port23a_cancel(struct rtw_adapter *adapter)
-{
-       void (*_read_port_cancel)(struct rtw_adapter *adapter);
-       struct _io_ops *io_ops = &adapter->io_ops;
-
-       _read_port_cancel = io_ops->_read_port_cancel;
-
-       if (_read_port_cancel)
-               _read_port_cancel(adapter);
-}
-
-void _rtw_write_port23a_cancel(struct rtw_adapter *adapter)
-{
-       void (*_write_port_cancel)(struct rtw_adapter *adapter);
-       struct _io_ops *io_ops = &adapter->io_ops;
-
-       _write_port_cancel = io_ops->_write_port_cancel;
-
-       if (_write_port_cancel)
-               _write_port_cancel(adapter);
-}
 
                       u8 *pdata);
 
        int (*_read_interrupt)(struct rtw_adapter *adapter, u32 addr);
-
-       void (*_read_port_cancel)(struct rtw_adapter *adapter);
-       void (*_write_port_cancel)(struct rtw_adapter *adapter);
 };
 
 struct io_req {
 #define rtw_read8(adapter, addr) dbg_rtw_read823a((adapter), (addr), __FUNCTION__, __LINE__)
 #define rtw_read16(adapter, addr) dbg_rtw_read1623a((adapter), (addr), __FUNCTION__, __LINE__)
 #define rtw_read32(adapter, addr) dbg_rtw_read3223a((adapter), (addr), __FUNCTION__, __LINE__)
-#define rtw_read_port_cancel(adapter) _rtw_read_port23a_cancel((adapter))
 
 #define  rtw_write8(adapter, addr, val) dbg_rtw_write823a((adapter), (addr), (val), __FUNCTION__, __LINE__)
 #define  rtw_write16(adapter, addr, val) dbg_rtw_write1623a((adapter), (addr), (val), __FUNCTION__, __LINE__)
 #define  rtw_write32(adapter, addr, val) dbg_rtw_write3223a((adapter), (addr), (val), __FUNCTION__, __LINE__)
 #define  rtw_writeN(adapter, addr, length, data) dbg_rtw_writeN23a((adapter), (addr), (length), (data), __FUNCTION__, __LINE__)
-
-#define rtw_write_port_cancel(adapter) _rtw_write_port23a_cancel(adapter)
 #else /* DBG_IO */
 #define rtw_read8(adapter, addr) _rtw_read823a((adapter), (addr))
 #define rtw_read16(adapter, addr) _rtw_read1623a((adapter), (addr))
 #define rtw_read32(adapter, addr) _rtw_read3223a((adapter), (addr))
-#define rtw_read_port_cancel(adapter) _rtw_read_port23a_cancel((adapter))
 
 #define  rtw_write8(adapter, addr, val) _rtw_write823a((adapter), (addr), (val))
 #define  rtw_write16(adapter, addr, val) _rtw_write1623a((adapter), (addr), (val))
 #define  rtw_write32(adapter, addr, val) _rtw_write3223a((adapter), (addr), (val))
 #define  rtw_writeN(adapter, addr, length, data) _rtw_writeN23a((adapter), (addr), (length), (data))
-
-#define rtw_write_port_cancel(adapter) _rtw_write_port23a_cancel((adapter))
 #endif /* DBG_IO */
 
 #define PlatformEFIOWrite1Byte(_a,_b,_c)               \
 
 
 #define MAX_USBCTRL_VENDORREQ_TIMES    10
 
-unsigned int ffaddr2pipehdl23a(struct dvobj_priv *pdvobj, u32 addr);
-
-void usb_read_port_cancel23a(struct rtw_adapter *adapter);
-
-int usb_write_port23a(struct rtw_adapter *adapter, u32 addr, u32 cnt,
-                     struct xmit_buf *wmem);
-void usb_write_port23a_cancel(struct rtw_adapter *adapter);
 int rtl8723a_usb_read_port(struct rtw_adapter *adapter, u32 addr, u32 cnt,
                           struct recv_buf *precvbuf);
+void rtl8723a_usb_read_port_cancel(struct rtw_adapter *padapter);
 int rtl8723a_usb_write_port(struct rtw_adapter *padapter, u32 addr, u32 cnt,
                            struct xmit_buf *pxmitbuf);
+void rtl8723a_usb_write_port_cancel(struct rtw_adapter *padapter);
 
 #endif