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gpio: gpiolib: don't compare an unsigned for >= 0
The parameter offset is an unsigned, so it makes no sense to compare it for >= 0. Fix the compiler warning regarding this by removing this comparison. As the macro GPIO_OFFSET_VALID is only used at this single place, simplify the code by dropping the macro completely and dropping the invert, too. No functional change. Signed-off-by: Dirk Behme <dirk.behme@gmail.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -47,8 +47,6 @@
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*/
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DEFINE_SPINLOCK(gpio_lock);
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#define GPIO_OFFSET_VALID(chip, offset) (offset >= 0 && offset < chip->ngpio)
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static DEFINE_MUTEX(gpio_lookup_lock);
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static LIST_HEAD(gpio_lookup_list);
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LIST_HEAD(gpio_chips);
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@ -995,7 +993,7 @@ const char *gpiochip_is_requested(struct gpio_chip *chip, unsigned offset)
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{
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struct gpio_desc *desc;
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if (!GPIO_OFFSET_VALID(chip, offset))
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if (offset >= chip->ngpio)
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return NULL;
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desc = &chip->desc[offset];
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