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>

diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 6307e30..1fb2557 100644 (file)
--- 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);