linux-kernel - [PATCH v1 3/3] gpio: 74xx-mmio: use bits.h macros for all masks

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Message-Id: <20220718220252.16923-3-andriy.shevchenko@linux.intel.com>
Date:   Tue, 19 Jul 2022 01:02:52 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>
Subject: [PATCH v1 3/3] gpio: 74xx-mmio: use bits.h macros for all masks

Make use of the GENMASK() (far less error-prone, far more concise).

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/gpio/gpio-74xx-mmio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-74xx-mmio.c b/drivers/gpio/gpio-74xx-mmio.c
index b2cc8a55c257..cd399898ed12 100644
--- a/drivers/gpio/gpio-74xx-mmio.c
+++ b/drivers/gpio/gpio-74xx-mmio.c
@@ -5,6 +5,7 @@
  *  Copyright (C) 2014 Alexander Shiyan <shc_work@...l.ru>
  */
 
+#include <linux/bits.h>
 #include <linux/err.h>
 #include <linux/gpio/driver.h>
 #include <linux/mod_devicetable.h>
@@ -14,7 +15,7 @@
 
 #define MMIO_74XX_DIR_IN	(0 << 8)
 #define MMIO_74XX_DIR_OUT	(1 << 8)
-#define MMIO_74XX_BIT_CNT(x)	((x) & 0xff)
+#define MMIO_74XX_BIT_CNT(x)	((x) & GENMASK(7, 0))
 
 struct mmio_74xx_gpio_priv {
 	struct gpio_chip	gc;
-- 
2.35.1