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Commit 3457912e authored by Javier Martinez Canillas's avatar Javier Martinez Canillas Committed by Greg Kroah-Hartman
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Staging: quatech_usb2: remove unused qt2_box_flush function 



In today linux-next I got a compilation warning:

drivers/staging/quatech_usb2/quatech_usb2.c:1852: warning:
‘qt2_box_flush’ defined but not used

Signed-off-by: default avatarJavier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 9092de6d

drivers/staging/quatech_usb2/quatech_usb2.c

+1 −23
Original line number Diff line number Diff line
@@ -258,8 +258,6 @@ static int qt2_box_get_register(struct usb_serial *serial, 
static int qt2_box_set_register(struct usb_serial *serial,

		unsigned short Uart_Number, unsigned short Register_Num,

		unsigned short Value);

static int qt2_box_flush(struct usb_serial *serial,  unsigned char uart_number,

		unsigned short rcv_or_xmit);

static int qt2_boxsetuart(struct usb_serial *serial, unsigned short Uart_Number,

		unsigned short default_divisor, unsigned char default_LCR);

static int qt2_boxsethw_flowctl(struct usb_serial *serial,
@@ -645,9 +643,6 @@ static void qt2_close(struct usb_serial_port *port) 
	/* get the device private data */

	port_extra = qt2_get_port_private(port); /* port private data */



	/* we don't need to force flush though the hardware, so we skip using

	 * qt2_box_flush() here */



	/* we can now (and only now) stop reading data */

	port_extra->close_pending = true;

	dbg("%s(): port_extra->close_pending = true", __func__);
@@ -1841,24 +1836,6 @@ static int qt2_box_set_register(struct usb_serial *serial, 
	return result;

}





/** @brief Request the Tx or Rx buffers on the USB side be flushed

 *

 * Tx flush: When all the currently buffered data has been sent, send an escape

 * sequence back up the data stream to us

 * Rx flush: add a flag in the data stream now so we know when it's made it's

 * way up to us.

 */

static int qt2_box_flush(struct usb_serial *serial,  unsigned char uart_number,

		    unsigned short rcv_or_xmit)

{

	int result;

	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),

		QT2_FLUSH_DEVICE, 0x40, rcv_or_xmit, uart_number, NULL, 0,

		300);

	return result;

}



/** qt2_boxsetuart - Issue a SET_UART vendor-spcific request on the default

 * control pipe. If successful sets baud rate divisor and LCR value.

 */
@@ -1873,6 +1850,7 @@ static int qt2_boxsetuart(struct usb_serial *serial, unsigned short Uart_Number, 
			QT2_GET_SET_UART, 0x40, default_divisor, UartNumandLCR,

			NULL, 0, 300);

}



/** qt2_boxsethw_flowctl - Turn hardware (RTS/CTS) flow control on and off for

 * a hardware UART.

 */