linux-kernel - [PATCH 11/18] tty: serial: samsung: don't compare with zero an if (bitwise expression)

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Date: Wed, 10 Jan 2024 10:20:55 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: krzysztof.kozlowski@...aro.org,
	alim.akhtar@...sung.com,
	gregkh@...uxfoundation.org,
	jirislaby@...nel.org
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	andre.draszik@...aro.org,
	peter.griffin@...aro.org,
	kernel-team@...roid.com,
	willmcvicker@...gle.com,
	Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH 11/18] tty: serial: samsung: don't compare with zero an if (bitwise expression)

Since an if tests the numeric value of an expression, certain coding
shortcuts can be used. The most obvious one is writing
    if (expression)
instead of
    if (expression != 0)

Since our case is a bitwise expression, it's more natural and clear to
use the ``if (expression)`` shortcut.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
---
 drivers/tty/serial/samsung_tty.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
index dbbe6b8e3ceb..f2413da14b1d 100644
--- a/drivers/tty/serial/samsung_tty.c
+++ b/drivers/tty/serial/samsung_tty.c
@@ -988,8 +988,7 @@ static unsigned int s3c24xx_serial_tx_empty(struct uart_port *port)
 	u32 ufcon = rd_regl(port, S3C2410_UFCON);
 
 	if (ufcon & S3C2410_UFCON_FIFOMODE) {
-		if ((ufstat & info->tx_fifomask) != 0 ||
-		    (ufstat & info->tx_fifofull))
+		if ((ufstat & info->tx_fifomask) || (ufstat & info->tx_fifofull))
 			return 0;
 
 		return 1;
-- 
2.43.0.472.g3155946c3a-goog