linux-kernel - [PATCH 11/36] tty: switch receive_buf() counts to size

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Message-ID: <20230810091510.13006-12-jirislaby@kernel.org>
Date:   Thu, 10 Aug 2023 11:14:45 +0200
From:   "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
Subject: [PATCH 11/36] tty: switch receive_buf() counts to size_t

'size_t' is what receive_buf() expects and returns while handling count.
So switch to 'size_t'.

This renders both local 'count' and 'rcvd' in flush_to_ldisc() to be
size_t too.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
---
 drivers/tty/tty_buffer.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 42464c37125a..7182dab60fac 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -502,12 +502,12 @@ static void lookahead_bufs(struct tty_port *port, struct tty_buffer *head)
 	}
 }
 
-static int
-receive_buf(struct tty_port *port, struct tty_buffer *head, int count)
+static size_t
+receive_buf(struct tty_port *port, struct tty_buffer *head, size_t count)
 {
 	u8 *p = char_buf_ptr(head, head->read);
 	const u8 *f = NULL;
-	int n;
+	size_t n;
 
 	if (head->flags)
 		f = flag_buf_ptr(head, head->read);
@@ -539,7 +539,7 @@ static void flush_to_ldisc(struct work_struct *work)
 	while (1) {
 		struct tty_buffer *head = buf->head;
 		struct tty_buffer *next;
-		int count, rcvd;
+		size_t count, rcvd;
 
 		/* Ldisc or user is trying to gain exclusive access */
 		if (atomic_read(&buf->priority))
-- 
2.41.0