From 49943393c9f0be61fd494a884851aa117cd72382 Mon Sep 17 00:00:00 2001
From: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Date: Wed, 6 Dec 2023 08:36:48 +0100
Subject: [PATCH] tty: switch tty_port::xmit_* to u8

Both xmit_buf and xmit_fifo of struct tty_port should be u8. To conform
to characters in the rest of the tty layer.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231206073712.17776-4-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/tty_port.c   | 2 +-
 include/linux/tty_port.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index ef72d2e4b928d..14cca33d22693 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -247,7 +247,7 @@ int tty_port_alloc_xmit_buf(struct tty_port *port)
 	/* We may sleep in get_zeroed_page() */
 	mutex_lock(&port->buf_mutex);
 	if (port->xmit_buf == NULL) {
-		port->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
+		port->xmit_buf = (u8 *)get_zeroed_page(GFP_KERNEL);
 		if (port->xmit_buf)
 			kfifo_init(&port->xmit_fifo, port->xmit_buf, PAGE_SIZE);
 	}
diff --git a/include/linux/tty_port.h b/include/linux/tty_port.h
index 3276311a7f384..1b861f2100b69 100644
--- a/include/linux/tty_port.h
+++ b/include/linux/tty_port.h
@@ -114,8 +114,8 @@ struct tty_port {
 	unsigned char		console:1;
 	struct mutex		mutex;
 	struct mutex		buf_mutex;
-	unsigned char		*xmit_buf;
-	DECLARE_KFIFO_PTR(xmit_fifo, unsigned char);
+	u8			*xmit_buf;
+	DECLARE_KFIFO_PTR(xmit_fifo, u8);
 	unsigned int		close_delay;
 	unsigned int		closing_wait;
 	int			drain_delay;
-- 
2.30.2