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authorAlan Cox <alan@redhat.com>2008-07-22 11:17:43 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-22 13:03:27 -0700
commit8ca8b9005a742edf8d82749d4ad4e616405fbdc4 (patch)
treeb05d1794db1c0853af00741b17bc36921e136e52 /drivers/char
parent30252ec958897d61925a4baf79cd9411a6be0486 (diff)
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>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/mxser.c36
1 files changed, 0 insertions, 36 deletions
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 6307e301bd26..1fb25571bf85 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1464,27 +1464,6 @@ static int mxser_get_lsr_info(struct mxser_port *info,
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)
{
struct mxser_port *info = tty->driver_data;
@@ -1872,21 +1851,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
return -EIO;
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:
lock_kernel();
retval = mxser_get_serial_info(info, argp);