linux-kernel - [PATCH v1 1/1] serial: 8250_dw: Hide a cast in dw8250_serial

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Date: Fri, 12 Apr 2024 20:39:37 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>
Subject: [PATCH v1 1/1] serial: 8250_dw: Hide a cast in dw8250_serial_inq()

dw8250_serial_inq() uses unsigned int variable to store 8-bit value.
Due to that it needs a cast which can be avoided by switching to use
u8 instead of unsigned int.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/tty/serial/8250/8250_dw.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 1e81024f8fd3..ba9f4dc4e71d 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -185,9 +185,7 @@ static unsigned int dw8250_serial_in(struct uart_port *p, int offset)
 #ifdef CONFIG_64BIT
 static unsigned int dw8250_serial_inq(struct uart_port *p, int offset)
 {
-	unsigned int value;
-
-	value = (u8)__raw_readq(p->membase + (offset << p->regshift));
+	u8 value = __raw_readq(p->membase + (offset << p->regshift));
 
 	return dw8250_modify_msr(p, offset, value);
 }
-- 
2.43.0.rc1.1336.g36b5255a03ac