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>

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);