struct hal_data_8723a *pHalData = GET_HAL_DATA(padapter);
        struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
 
-       if (pdvobjpriv->ishighspeed == true) {
-               /* 512 bytes */
-               pHalData->UsbBulkOutSize = USB_HIGH_SPEED_BULK_SIZE;
-       } else {
-               /* 64 bytes */
-               pHalData->UsbBulkOutSize = USB_FULL_SPEED_BULK_SIZE;
-       }
-
        pHalData->interfaceIndex = pdvobjpriv->InterfaceNumber;
 
        rtl8723au_set_queue_pipe_mapping(padapter,
 
 #define MAX_VENDOR_REQ_CMD_SIZE        254             /* 8188cu SIE Support */
 #define MAX_USB_IO_CTL_SIZE    (MAX_VENDOR_REQ_CMD_SIZE +ALIGNMENT_UNIT)
 
-#define rtw_usb_bulk_msg(usb_dev, pipe, data, len, actual_length, timeout_ms) \
-       usb_bulk_msg((usb_dev), (pipe), (data), (len), (actual_length), \
-                    (timeout_ms))
-
 void rtl8723au_set_hw_type(struct rtw_adapter *padapter);
 
 void rtl8723au_set_intf_ops(struct rtw_adapter *padapter);
        atomic_set(&dvobj->continual_urb_error, 0);
 }
 
-#define USB_HIGH_SPEED_BULK_SIZE       512
-#define USB_FULL_SPEED_BULK_SIZE       64
-
-static inline u8 rtw_usb_bulk_size_boundary(struct rtw_adapter *padapter,
-                                           int buf_len)
-{
-       u8 rst = true;
-       struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
-
-       if (pdvobjpriv->ishighspeed)
-               rst = (0 == (buf_len) % USB_HIGH_SPEED_BULK_SIZE) ?
-                     true : false;
-       else
-               rst = (0 == (buf_len) % USB_FULL_SPEED_BULK_SIZE) ?
-                     true : false;
-       return rst;
-}
-
 void rtl8723au_chip_configure(struct rtw_adapter *padapter);
 
 #endif /* __USB_OPS_H_ */