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>

2 files changed, 9 insertions, 10 deletions

diff --git a/drivers/net/ppp/ppp_async.c b/drivers/net/ppp/ppp_async.c
index 79b8fca47edb..a661ccdea6ab 100644
--- a/drivers/net/ppp/ppp_async.c
+++ b/drivers/net/ppp/ppp_async.c
@@ -330,8 +330,8 @@ ppp_asynctty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
 
 /* May sleep, don't call from interrupt level or with interrupts disabled */
 static void
-ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf,
-		     const char *cflags, size_t count)
+ppp_asynctty_receive(struct tty_struct *tty, const u8 *buf, const char *cflags,
+		     size_t count)
 {
 	struct asyncppp *ap = ap_get(tty);
 	unsigned long flags;
@@ -819,8 +819,8 @@ process_input_packet(struct asyncppp *ap)
    other ldisc functions but will not be re-entered */
 
 static void
-ppp_async_input(struct asyncppp *ap, const unsigned char *buf,
-		const char *flags, int count)
+ppp_async_input(struct asyncppp *ap, const u8 *buf, const char *flags,
+		int count)
 {
 	struct sk_buff *skb;
 	int c, i, j, n, s, f;
diff --git a/drivers/net/ppp/ppp_synctty.c b/drivers/net/ppp/ppp_synctty.c
index 767aca32b315..2a5cf6be9591 100644
--- a/drivers/net/ppp/ppp_synctty.c
+++ b/drivers/net/ppp/ppp_synctty.c
@@ -93,8 +93,8 @@ static int ppp_sync_ioctl(struct ppp_channel *chan, unsigned int cmd,
 static void ppp_sync_process(struct tasklet_struct *t);
 static int ppp_sync_push(struct syncppp *ap);
 static void ppp_sync_flush_output(struct syncppp *ap);
-static void ppp_sync_input(struct syncppp *ap, const unsigned char *buf,
-			   const char *flags, int count);
+static void ppp_sync_input(struct syncppp *ap, const u8 *buf, const char *flags,
+			   int count);
 
 static const struct ppp_channel_ops sync_ops = {
 	.start_xmit = ppp_sync_send,
@@ -323,8 +323,8 @@ ppp_synctty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
 
 /* May sleep, don't call from interrupt level or with interrupts disabled */
 static void
-ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf,
-		 const char *cflags, size_t count)
+ppp_sync_receive(struct tty_struct *tty, const u8 *buf, const char *cflags,
+		 size_t count)
 {
 	struct syncppp *ap = sp_get(tty);
 	unsigned long flags;
@@ -655,8 +655,7 @@ ppp_sync_flush_output(struct syncppp *ap)
  * frame is considered to be in error and is tossed.
  */
 static void
-ppp_sync_input(struct syncppp *ap, const unsigned char *buf,
-		const char *flags, int count)
+ppp_sync_input(struct syncppp *ap, const u8 *buf, const char *flags, int count)
 {
 	struct sk_buff *skb;
 	unsigned char *p;