diff options
| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2023-08-10 11:14:35 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-11 21:12:44 +0200 |
| commit | ebf9ec7a4554632d9e621a4c00618c7c10a3e0fa (patch) | |
| tree | 74a8a4818c5f24219f6b56f384081e96236f95fa /arch/xtensa | |
| parent | 9c8441330bb399cba6177acce9b0e68c0dbaa597 (diff) | |
tty: xtensa/iss: drop unneeded tty_operations hooks
All ::flush_chars(), ::hangup(), and ::wait_until_sent() from struct
tty_operations are optional. There is no need to provide them with
empty bodies.
tty_operations::put_char() needs not be provided if it is the same as
tty_operations::write(tty, &ch, 1).
So drop all of them.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Link: https://lore.kernel.org/r/20230810091510.13006-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/platforms/iss/console.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c index 10b79d3c74e0..b40b73809dd8 100644 --- a/arch/xtensa/platforms/iss/console.c +++ b/arch/xtensa/platforms/iss/console.c @@ -82,32 +82,12 @@ static void rs_poll(struct timer_list *unused) mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE); } - -static int rs_put_char(struct tty_struct *tty, unsigned char ch) -{ - return rs_write(tty, &ch, 1); -} - -static void rs_flush_chars(struct tty_struct *tty) -{ -} - static unsigned int rs_write_room(struct tty_struct *tty) { /* Let's say iss can always accept 2K characters.. */ return 2 * 1024; } -static void rs_hangup(struct tty_struct *tty) -{ - /* Stub, once again.. */ -} - -static void rs_wait_until_sent(struct tty_struct *tty, int timeout) -{ - /* Stub, once again.. */ -} - static int rs_proc_show(struct seq_file *m, void *v) { seq_printf(m, "serinfo:1.0 driver:0.1\n"); @@ -118,11 +98,7 @@ static const struct tty_operations serial_ops = { .open = rs_open, .close = rs_close, .write = rs_write, - .put_char = rs_put_char, - .flush_chars = rs_flush_chars, .write_room = rs_write_room, - .hangup = rs_hangup, - .wait_until_sent = rs_wait_until_sent, .proc_show = rs_proc_show, }; |