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)" <[email protected]>
Cc: William Hubbs <[email protected]>
Cc: Chris Brannon <[email protected]>
Cc: Kirk Reiser <[email protected]>
Cc: Samuel Thibault <[email protected]>
Cc: Marcel Holtmann <[email protected]>
Cc: Johan Hedberg <[email protected]>
Cc: Luiz Augusto von Dentz <[email protected]>
Cc: Dmitry Torokhov <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Jakub Kicinski <[email protected]>
Cc: Paolo Abeni <[email protected]>
Cc: Max Staudt <[email protected]>
Cc: Wolfgang Grandegger <[email protected]>
Cc: Marc Kleine-Budde <[email protected]>
Cc: Dario Binacchi <[email protected]>
Cc: Andreas Koensgen <[email protected]>
Cc: Jeremy Kerr <[email protected]>
Cc: Matt Johnston <[email protected]>
Cc: Krzysztof Kozlowski <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Jaroslav Kysela <[email protected]>
Cc: Takashi Iwai <[email protected]>
Acked-by: Mark Brown <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

3 files changed, 13 insertions, 13 deletions

diff --git a/include/linux/tty_buffer.h b/include/linux/tty_buffer.h
index 6f2966b15093..b11cc8c749d2 100644
--- a/include/linux/tty_buffer.h
+++ b/include/linux/tty_buffer.h
@@ -27,9 +27,9 @@ static inline u8 *char_buf_ptr(struct tty_buffer *b, int ofs)
 	return ((u8 *)b->data) + ofs;
 }
 
-static inline char *flag_buf_ptr(struct tty_buffer *b, int ofs)
+static inline u8 *flag_buf_ptr(struct tty_buffer *b, int ofs)
 {
-	return (char *)char_buf_ptr(b, ofs) + b->size;
+	return char_buf_ptr(b, ofs) + b->size;
 }
 
 struct tty_bufhead {
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index a0fcffeaaa25..d33aed2172c7 100644
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -11,14 +11,14 @@ int tty_buffer_set_limit(struct tty_port *port, int limit);
 unsigned int tty_buffer_space_avail(struct tty_port *port);
 int tty_buffer_request_room(struct tty_port *port, size_t size);
 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 tty_insert_flip_string_fixed_flag(struct tty_port *port, const u8 *chars,
-				      char flag, size_t size);
+				      u8 flag, size_t size);
 int tty_prepare_flip_string(struct tty_port *port, u8 **chars, size_t size);
 void tty_flip_buffer_push(struct tty_port *port);
-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);
 
-static inline int tty_insert_flip_char(struct tty_port *port, u8 ch, char flag)
+static inline int tty_insert_flip_char(struct tty_port *port, u8 ch, u8 flag)
 {
 	struct tty_buffer *tb = port->buf.tail;
 	int change;
@@ -39,7 +39,7 @@ static inline int tty_insert_flip_string(struct tty_port *port,
 	return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
 }
 
-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);
 
 void tty_buffer_lock_exclusive(struct tty_port *port);
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 5551c4400e59..a661d7df5497 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -162,7 +162,7 @@ int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass,
  *	Optional. Can sleep.
  *
  * @receive_buf: [DRV] ``void ()(struct tty_struct *tty, const u8 *cp,
- *		       const char *fp, size_t count)``
+ *		       const u8 *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
@@ -192,7 +192,7 @@ int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass,
  *	Optional.
  *
  * @receive_buf2: [DRV] ``ssize_t ()(struct tty_struct *tty, const u8 *cp,
- *			const char *fp, size_t count)``
+ *			const u8 *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
@@ -205,7 +205,7 @@ int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass,
  *	Optional.
  *
  * @lookahead_buf: [DRV] ``void ()(struct tty_struct *tty, const u8 *cp,
- *			 const char *fp, size_t count)``
+ *			 const u8 *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
@@ -256,13 +256,13 @@ struct tty_ldisc_ops {
 	 * The following routines are called from below.
 	 */
 	void	(*receive_buf)(struct tty_struct *tty, const u8 *cp,
-			       const char *fp, size_t count);
+			       const u8 *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 u8 *cp,
-				const char *fp, size_t count);
+				const u8 *fp, size_t count);
 	void	(*lookahead_buf)(struct tty_struct *tty, const u8 *cp,
-				 const unsigned char *fp, size_t count);
+				 const u8 *fp, size_t count);
 
 	struct  module *owner;
 };