From 96564ac680b448b9152a22d1897b55d2cdc41652 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 15 Jun 2020 09:48:56 +0200 Subject: [PATCH] um: line, remove put_char 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 Cc: Jeff Dike Cc: Richard Weinberger Cc: Anton Ivanov Link: https://lore.kernel.org/r/20200615074856.18949-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman --- 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,