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@xxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Cc: Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>
---
arch/um/drivers/line.c | 5 -----
arch/um/drivers/line.h | 1 -
arch/um/drivers/ssl.c | 1 -
arch/um/drivers/stdio_console.c | 1 -
4 files changed, 8 deletions(-)
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 4f2a4ac8a82b..14ad9f495fe6 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -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;
diff --git a/arch/um/drivers/line.h b/arch/um/drivers/line.h
index a151ff5155ef..01d21e76144f 100644
--- a/arch/um/drivers/line.h
+++ b/arch/um/drivers/line.h
@@ -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);
diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c
index 26c5716fac0f..6476b28d7c5e 100644
--- a/arch/um/drivers/ssl.c
+++ b/arch/um/drivers/ssl.c
@@ -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,
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index 0021d7ffb528..37b127941e6f 100644
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -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,
--
2.27.0
