diff options
| author | Samo Pogačnik <samo_pogacnik@t-2.net> | 2021-04-27 13:43:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-13 18:29:12 +0200 |
| commit | 2fee8811219793cb16ed3f09b5629bb5c78e7dbb (patch) | |
| tree | 4c347bcaa8c1058dd226cc6f9bcae8e5852a02da /drivers/char/ttyprintk.c | |
| parent | bf3d6ab9bc1295fdf37cbc363ba9f7dfa14a84b8 (diff) | |
| download | linux-2fee8811219793cb16ed3f09b5629bb5c78e7dbb.tar.bz2 | |
ttyprintk: Removed unnecessary TTY ioctl callback
It turns-out, that TIOCCONS is completely handled in tty_io.c, so
the current local ioctl callback is of no real use.
Signed-off-by: Samo Pogačnik <samo_pogacnik@t-2.net>
Link: https://lore.kernel.org/r/1502946c760b1aae3ad9cffcf4ea3b9f37206585.camel@t-2.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/ttyprintk.c')
| -rw-r--r-- | drivers/char/ttyprintk.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c index 620065b6cef9..219fa1382396 100644 --- a/drivers/char/ttyprintk.c +++ b/drivers/char/ttyprintk.c @@ -109,7 +109,6 @@ static int tpk_write(struct tty_struct *tty, unsigned long flags; int ret; - /* exclusive use of tpk_printk within this tty */ spin_lock_irqsave(&tpkp->spinlock, flags); ret = tpk_printk(buf, count); @@ -127,27 +126,6 @@ static unsigned int tpk_write_room(struct tty_struct *tty) } /* - * TTY operations ioctl function. - */ -static int tpk_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg) -{ - struct ttyprintk_port *tpkp = tty->driver_data; - - if (!tpkp) - return -EINVAL; - - switch (cmd) { - /* Stop TIOCCONS */ - case TIOCCONS: - return -EOPNOTSUPP; - default: - return -ENOIOCTLCMD; - } - return 0; -} - -/* * TTY operations hangup function. */ static void tpk_hangup(struct tty_struct *tty) @@ -176,7 +154,6 @@ static const struct tty_operations ttyprintk_ops = { .close = tpk_close, .write = tpk_write, .write_room = tpk_write_room, - .ioctl = tpk_ioctl, .hangup = tpk_hangup, }; |