tty: use u8 for flags

This makes all those 'char's an explicit 'u8'. This is part of the
continuing unification of chars and flags to be consistent u8.

This approaches tty_port_default_receive_buf().

Note that we do not change signedness as we compile with
-funsigned-char.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: William Hubbs <w.d.hubbs@gmail.com>
Cc: Chris Brannon <chris@the-brannons.com>
Cc: Kirk Reiser <kirk@reisers.ca>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Max Staudt <max@enpas.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Cc: Andreas Koensgen <ajk@comnets.uni-bremen.de>
Cc: Jeremy Kerr <jk@codeconstruct.com.au>
Cc: Matt Johnston <matt@codeconstruct.com.au>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230810091510.13006-18-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 9db42e6ed45b..684d099cbe11 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -317,7 +317,7 @@ EXPORT_SYMBOL_GPL(tty_buffer_request_room);
  * Returns: the number added.
  */
 int tty_insert_flip_string_fixed_flag(struct tty_port *port, const u8 *chars,
-		char flag, size_t size)
+				      u8 flag, size_t size)
 {
 	int copied = 0;
 	bool flags = flag != TTY_NORMAL;
@@ -356,7 +356,7 @@ EXPORT_SYMBOL(tty_insert_flip_string_fixed_flag);
  * Returns: the number added.
  */
 int tty_insert_flip_string_flags(struct tty_port *port, const u8 *chars,
-		const char *flags, size_t size)
+				 const u8 *flags, size_t size)
 {
 	int copied = 0;
 
@@ -390,7 +390,7 @@ EXPORT_SYMBOL(tty_insert_flip_string_flags);
  * Queue a single byte @ch to the tty buffering, with an optional flag. This is
  * the slow path of tty_insert_flip_char().
  */
-int __tty_insert_flip_char(struct tty_port *port, u8 ch, char flag)
+int __tty_insert_flip_char(struct tty_port *port, u8 ch, u8 flag)
 {
 	struct tty_buffer *tb;
 	bool flags = flag != TTY_NORMAL;
@@ -449,7 +449,7 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string);
  *
  * Returns: the number of bytes processed.
  */
-size_t tty_ldisc_receive_buf(struct tty_ldisc *ld, const u8 *p, const char *f,
+size_t tty_ldisc_receive_buf(struct tty_ldisc *ld, const u8 *p, const u8 *f,
 			     size_t count)
 {
 	if (ld->ops->receive_buf2)