From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-hardening@vger.kernel.org
Cc: Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <brgl@bgdev.pl>, Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>
Subject: [PATCH v2 4/7] gpio: 74x164: Make use of the macros from bits.h
Date: Fri, 7 Feb 2025 17:17:11 +0200 [thread overview]
Message-ID: <20250207151825.2122419-5-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20250207151825.2122419-1-andriy.shevchenko@linux.intel.com>
Make use of BIT() and GENMASK() where it makes sense.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/gpio/gpio-74x164.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index 7844f8a58834..0f720d539fa7 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -47,7 +47,7 @@ static int gen_74x164_get_value(struct gpio_chip *gc, unsigned offset)
guard(mutex)(&chip->lock);
- return (chip->buffer[bank] >> pin) & 0x1;
+ return !!(chip->buffer[bank] & BIT(pin));
}
static void gen_74x164_set_value(struct gpio_chip *gc,
@@ -60,9 +60,9 @@ static void gen_74x164_set_value(struct gpio_chip *gc,
guard(mutex)(&chip->lock);
if (val)
- chip->buffer[bank] |= (1 << pin);
+ chip->buffer[bank] |= BIT(pin);
else
- chip->buffer[bank] &= ~(1 << pin);
+ chip->buffer[bank] &= ~BIT(pin);
__gen_74x164_write_config(chip);
}
--
2.43.0.rc1.1336.g36b5255a03ac
next prev parent reply other threads:[~2025-02-07 15:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-07 15:17 [PATCH v2 0/7] gpio: 74x164: Refactor and clean up the driver Andy Shevchenko
2025-02-07 15:17 ` [PATCH v2 1/7] gpio: 74x164: Remove unneeded dependency to OF_GPIO Andy Shevchenko
2025-02-07 15:17 ` [PATCH v2 2/7] gpio: 74x164: Simplify code with cleanup helpers Andy Shevchenko
2025-02-07 15:17 ` [PATCH v2 3/7] gpio: 74x164: Annotate buffer with __counted_by() Andy Shevchenko
2025-02-07 15:17 ` Andy Shevchenko [this message]
2025-02-07 15:17 ` [PATCH v2 5/7] gpio: 74x164: Fully convert to use managed resources Andy Shevchenko
2025-02-07 15:17 ` [PATCH v2 6/7] gpio: 74x164: Switch to use dev_err_probe() Andy Shevchenko
2025-02-07 15:17 ` [PATCH v2 7/7] gpio: 74x164: Utilise temporary variable for struct device Andy Shevchenko
2025-02-07 15:41 ` Andy Shevchenko
2025-02-07 19:56 ` Bartosz Golaszewski
2025-02-10 8:09 ` Andy Shevchenko
2025-02-11 8:41 ` [PATCH v2 0/7] gpio: 74x164: Refactor and clean up the driver Bartosz Golaszewski
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