mxser: remove dead code
Old style ioctl break code can go Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 changed files with 0 additions and 36 deletions
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@ -1464,27 +1464,6 @@ static int mxser_get_lsr_info(struct mxser_port *info,
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return put_user(result, value);
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}
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/*
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* This routine sends a break character out the serial port.
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*/
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static void mxser_send_break(struct mxser_port *info, int duration)
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{
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unsigned long flags;
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if (!info->ioaddr)
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return;
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set_current_state(TASK_INTERRUPTIBLE);
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spin_lock_irqsave(&info->slock, flags);
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outb(inb(info->ioaddr + UART_LCR) | UART_LCR_SBC,
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info->ioaddr + UART_LCR);
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spin_unlock_irqrestore(&info->slock, flags);
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schedule_timeout(duration);
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spin_lock_irqsave(&info->slock, flags);
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outb(inb(info->ioaddr + UART_LCR) & ~UART_LCR_SBC,
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info->ioaddr + UART_LCR);
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spin_unlock_irqrestore(&info->slock, flags);
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}
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static int mxser_tiocmget(struct tty_struct *tty, struct file *file)
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{
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struct mxser_port *info = tty->driver_data;
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@ -1872,21 +1851,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
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return -EIO;
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switch (cmd) {
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case TCSBRK: /* SVID version: non-zero arg --> no break */
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retval = tty_check_change(tty);
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if (retval)
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return retval;
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tty_wait_until_sent(tty, 0);
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if (!arg)
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mxser_send_break(info, HZ / 4); /* 1/4 second */
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return 0;
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case TCSBRKP: /* support for POSIX tcsendbreak() */
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retval = tty_check_change(tty);
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if (retval)
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return retval;
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tty_wait_until_sent(tty, 0);
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mxser_send_break(info, arg ? arg * (HZ / 10) : HZ / 4);
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return 0;
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case TIOCGSERIAL:
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lock_kernel();
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retval = mxser_get_serial_info(info, argp);
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