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Commit 8ca8b900 authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
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mxser: remove dead code 



Old style ioctl break code can go

Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 30252ec9

drivers/char/mxser.c

+0 −36
Original line number Original line Diff line number Diff line
@@ -1464,27 +1464,6 @@ static int mxser_get_lsr_info(struct mxser_port *info, 
	return put_user(result, value);

	return put_user(result, value);

}

}





/*

 * This routine sends a break character out the serial port.

 */

static void mxser_send_break(struct mxser_port *info, int duration)

{

	unsigned long flags;



	if (!info->ioaddr)

		return;

	set_current_state(TASK_INTERRUPTIBLE);

	spin_lock_irqsave(&info->slock, flags);

	outb(inb(info->ioaddr + UART_LCR) | UART_LCR_SBC,

		info->ioaddr + UART_LCR);

	spin_unlock_irqrestore(&info->slock, flags);

	schedule_timeout(duration);

	spin_lock_irqsave(&info->slock, flags);

	outb(inb(info->ioaddr + UART_LCR) & ~UART_LCR_SBC,

		info->ioaddr + UART_LCR);

	spin_unlock_irqrestore(&info->slock, flags);

}



static int mxser_tiocmget(struct tty_struct *tty, struct file *file)

static int mxser_tiocmget(struct tty_struct *tty, struct file *file)

{

{

	struct mxser_port *info = tty->driver_data;

	struct mxser_port *info = tty->driver_data;
@@ -1872,21 +1851,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, 
		return -EIO;

		return -EIO;





	switch (cmd) {

	switch (cmd) {

	case TCSBRK:		/* SVID version: non-zero arg --> no break */

		retval = tty_check_change(tty);

		if (retval)

			return retval;

		tty_wait_until_sent(tty, 0);

		if (!arg)

			mxser_send_break(info, HZ / 4);	/* 1/4 second */

		return 0;

	case TCSBRKP:		/* support for POSIX tcsendbreak() */

		retval = tty_check_change(tty);

		if (retval)

			return retval;

		tty_wait_until_sent(tty, 0);

		mxser_send_break(info, arg ? arg * (HZ / 10) : HZ / 4);

		return 0;

	case TIOCGSERIAL:

	case TIOCGSERIAL:

		lock_kernel();

		lock_kernel();

		retval = mxser_get_serial_info(info, argp);

		retval = mxser_get_serial_info(info, argp);