linux-kernel - [PATCH 2/3] serial: core: Make local variable size to u64

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Message-ID: <20231014104942.856152-3-vamshigajjela@google.com>
Date:   Sat, 14 Oct 2023 16:19:41 +0530
From:   Vamshi Gajjela <vamshigajjela@...gle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        ilpo.jarvinen@...ux.intel.com
Cc:     linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        manugautam@...gle.com, Subhash Jadavani <sjadavani@...gle.com>,
        Channa Kadabi <kadabi@...gle.com>,
        VAMSHI GAJJELA <vamshigajjela@...gle.com>
Subject: [PATCH 2/3] serial: core: Make local variable size to u64

From: VAMSHI GAJJELA <vamshigajjela@...gle.com>

The variable size has been changed from u32 to u64 to accommodate a
larger range of values without the need for explicit typecasting.

Signed-off-by: VAMSHI GAJJELA <vamshigajjela@...gle.com>
---
 drivers/tty/serial/serial_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 7bdc21d5e13b..fb4696d17a8b 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -410,10 +410,10 @@ void
 uart_update_timeout(struct uart_port *port, unsigned int cflag,
 		    unsigned int baud)
 {
-	unsigned int size = tty_get_frame_size(cflag);
+	u64 size = tty_get_frame_size(cflag);
 	u64 frame_time;
 
-	frame_time = (u64)size * NSEC_PER_SEC;
+	frame_time = size * NSEC_PER_SEC;
 	port->frame_time = DIV64_U64_ROUND_UP(frame_time, baud);
 }
 EXPORT_SYMBOL(uart_update_timeout);
-- 
2.42.0.655.g421f12c284-goog