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gpiolib: Embed iterator variable into for_each_gpio_desc_with_flag()

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The iterator loop is used exclusively to get a descriptor, which in its
turn is what is being used by the caller. Embed the iterator variable
into the loop in the for_each_gpio_desc_with_flag() macro helper.

Suggested-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This commit is contained in:
Andy Shevchenko 2022-04-08 21:18:50 +03:00 committed by Bartosz Golaszewski
parent 24a9dbb1c1
commit 57017edd46
4 changed files with 7 additions and 10 deletions
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3
drivers/gpio/gpiolib-of.c
View File

@ -712,9 +712,8 @@ static void of_gpiochip_remove_hog(struct gpio_chip *chip,
struct device_node *hog)
{
struct gpio_desc *desc;
unsigned int i;
for_each_gpio_desc_with_flag(i, chip, desc, FLAG_IS_HOGGED)
for_each_gpio_desc_with_flag(chip, desc, FLAG_IS_HOGGED)
if (desc->hog == hog)
gpiochip_free_own_desc(desc);
}

3
drivers/gpio/gpiolib-sysfs.c
View File

@ -760,7 +760,6 @@ void gpiochip_sysfs_unregister(struct gpio_device *gdev)
{
struct gpio_desc *desc;
struct gpio_chip *chip = gdev->chip;
unsigned int i;
if (!gdev->mockdev)
return;
@ -773,7 +772,7 @@ void gpiochip_sysfs_unregister(struct gpio_device *gdev)
mutex_unlock(&sysfs_lock);
/* unregister gpiod class devices owned by sysfs */
for_each_gpio_desc_with_flag(i, chip, desc, FLAG_SYSFS)
for_each_gpio_desc_with_flag(chip, desc, FLAG_SYSFS)
gpiod_free(desc);
}

3
drivers/gpio/gpiolib.c
View File

@ -4119,9 +4119,8 @@ int gpiod_hog(struct gpio_desc *desc, const char *name,
static void gpiochip_free_hogs(struct gpio_chip *gc)
{
struct gpio_desc *desc;
int id;
for_each_gpio_desc_with_flag(id, gc, desc, FLAG_IS_HOGGED)
for_each_gpio_desc_with_flag(gc, desc, FLAG_IS_HOGGED)
gpiochip_free_own_desc(desc);
}

8
drivers/gpio/gpiolib.h
View File

@ -100,10 +100,10 @@ struct gpio_array {
struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, unsigned int hwnum);
#define for_each_gpio_desc_with_flag(i, gc, desc, flag) \
for (i = 0, desc = gpiochip_get_desc(gc, i); \
i < gc->ngpio; \
i++, desc = gpiochip_get_desc(gc, i)) \
#define for_each_gpio_desc_with_flag(gc, desc, flag) \
for (unsigned int __i = 0; \
__i < gc->ngpio && (desc = gpiochip_get_desc(gc, __i)); \
__i++) \
if (!test_bit(flag, &desc->flags)) {} else
int gpiod_get_array_value_complex(bool raw, bool can_sleep,