Char: moxa, remove useless tty functions

- moxa_flush_chars -- no code; ldics handle this well
- moxa_put_char -- only wrapper to moxa_write (same code), tty does this
  the same way if tty->driver->put_char is NULL

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Tested-by: Oyvind Aabling <Oyvind.Aabling@uni-c.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 876c79b..7f87735 100644 (file)
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -193,8 +193,6 @@ static int moxa_write(struct tty_struct *, const unsigned char *, int);
 static int moxa_write_room(struct tty_struct *);
 static void moxa_flush_buffer(struct tty_struct *);
 static int moxa_chars_in_buffer(struct tty_struct *);
-static void moxa_flush_chars(struct tty_struct *);
-static void moxa_put_char(struct tty_struct *, unsigned char);
 static void moxa_throttle(struct tty_struct *);
 static void moxa_unthrottle(struct tty_struct *);
 static void moxa_set_termios(struct tty_struct *, struct ktermios *);
@@ -391,8 +389,6 @@ static const struct tty_operations moxa_ops = {
        .write_room = moxa_write_room,
        .flush_buffer = moxa_flush_buffer,
        .chars_in_buffer = moxa_chars_in_buffer,
-       .flush_chars = moxa_flush_chars,
-       .put_char = moxa_put_char,
        .ioctl = moxa_ioctl,
        .throttle = moxa_throttle,
        .unthrottle = moxa_unthrottle,
@@ -1284,27 +1280,6 @@ static int moxa_chars_in_buffer(struct tty_struct *tty)
        return chars;
 }
 
-static void moxa_flush_chars(struct tty_struct *tty)
-{
-       /*
-        * Don't think I need this, because this is called to empty the TX
-        * buffer for the 16450, 16550, etc.
-        */
-}
-
-static void moxa_put_char(struct tty_struct *tty, unsigned char c)
-{
-       struct moxa_port *ch = tty->driver_data;
-
-       if (ch == NULL)
-               return;
-       spin_lock_bh(&moxa_lock);
-       MoxaPortWriteData(ch, &c, 1);
-       spin_unlock_bh(&moxa_lock);
-
-       ch->statusflags |= LOWWAIT;
-}
-
 static int moxa_tiocmget(struct tty_struct *tty, struct file *file)
 {
        struct moxa_port *ch;