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um: line, remove put_char

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um's put_char only calls write. And the tty layer/disciplines do the
same if put_char is NULL.

So we can safely remove this put_char wrapper.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Link: https://lore.kernel.org/r/20200615074856.18949-1-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2020-06-15 09:48:56 +02:00 committed by Greg Kroah-Hartman
parent 48778464bb
commit 96564ac680
4 changed files with 0 additions and 8 deletions
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5
arch/um/drivers/line.c
View file

@ -184,11 +184,6 @@ void line_flush_chars(struct tty_struct *tty)
line_flush_buffer(tty);
}
int line_put_char(struct tty_struct *tty, unsigned char ch)
{
return line_write(tty, &ch, sizeof(ch));
}
int line_write(struct tty_struct *tty, const unsigned char *buf, int len)
{
struct line *line = tty->driver_data;

1
arch/um/drivers/line.h
View file

@ -66,7 +66,6 @@ extern int line_setup(char **conf, unsigned nlines, char **def,
char *init, char *name);
extern int line_write(struct tty_struct *tty, const unsigned char *buf,
int len);
extern int line_put_char(struct tty_struct *tty, unsigned char ch);
extern void line_set_termios(struct tty_struct *tty, struct ktermios * old);
extern int line_chars_in_buffer(struct tty_struct *tty);
extern void line_flush_buffer(struct tty_struct *tty);

1
arch/um/drivers/ssl.c
View file

@ -95,7 +95,6 @@ static const struct tty_operations ssl_ops = {
.open = line_open,
.close = line_close,
.write = line_write,
.put_char = line_put_char,
.write_room = line_write_room,
.chars_in_buffer = line_chars_in_buffer,
.flush_buffer = line_flush_buffer,

1
arch/um/drivers/stdio_console.c
View file

@ -102,7 +102,6 @@ static const struct tty_operations console_ops = {
.install = con_install,
.close = line_close,
.write = line_write,
.put_char = line_put_char,
.write_room = line_write_room,
.chars_in_buffer = line_chars_in_buffer,
.flush_buffer = line_flush_buffer,