tty: use u8 for chars

This makes all those 'unsigned 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(). Flags to be next.

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: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Max Staudt <max@enpas.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.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: 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: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230810091510.13006-17-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 9 insertions, 9 deletions

diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index f88529e6a783..5551c4400e59 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -161,8 +161,8 @@ int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass,
  *
  *	Optional. Can sleep.
  *
- * @receive_buf: [DRV] ``void ()(struct tty_struct *tty,
- *		       const unsigned char *cp, const char *fp, size_t count)``
+ * @receive_buf: [DRV] ``void ()(struct tty_struct *tty, const u8 *cp,
+ *		       const char *fp, size_t count)``
  *
  *	This function is called by the low-level tty driver to send characters
  *	received by the hardware to the line discpline for processing. @cp is
@@ -191,8 +191,8 @@ int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass,
  *
  *	Optional.
  *
- * @receive_buf2: [DRV] ``ssize_t ()(struct tty_struct *tty,
- *			const unsigned char *cp, const char *fp, size_t count)``
+ * @receive_buf2: [DRV] ``ssize_t ()(struct tty_struct *tty, const u8 *cp,
+ *			const char *fp, size_t count)``
  *
  *	This function is called by the low-level tty driver to send characters
  *	received by the hardware to the line discpline for processing. @cp is a
@@ -204,8 +204,8 @@ int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass,
  *
  *	Optional.
  *
- * @lookahead_buf: [DRV] ``void ()(struct tty_struct *tty,
- *			const unsigned char *cp, const char *fp, size_t count)``
+ * @lookahead_buf: [DRV] ``void ()(struct tty_struct *tty, const u8 *cp,
+ *			 const char *fp, size_t count)``
  *
  *	This function is called by the low-level tty driver for characters
  *	not eaten by ->receive_buf() or ->receive_buf2(). It is useful for
@@ -255,13 +255,13 @@ struct tty_ldisc_ops {
 	/*
 	 * The following routines are called from below.
 	 */
-	void	(*receive_buf)(struct tty_struct *tty, const unsigned char *cp,
+	void	(*receive_buf)(struct tty_struct *tty, const u8 *cp,
 			       const char *fp, size_t count);
 	void	(*write_wakeup)(struct tty_struct *tty);
 	void	(*dcd_change)(struct tty_struct *tty, bool active);
-	size_t	(*receive_buf2)(struct tty_struct *tty, const unsigned char *cp,
+	size_t	(*receive_buf2)(struct tty_struct *tty, const u8 *cp,
 				const char *fp, size_t count);
-	void	(*lookahead_buf)(struct tty_struct *tty, const unsigned char *cp,
+	void	(*lookahead_buf)(struct tty_struct *tty, const u8 *cp,
 				 const unsigned char *fp, size_t count);
 
 	struct  module *owner;