gpio: cdev: don't report GPIOs requested as interrupts as used

GPIOs used as shared irqs can still be requested by user-space (or
kernel drivers for that matter) yet we report them as used over the
chardev ABI. Drop the test for FLAG_USED_AS_IRQ from
gpio_desc_to_lineinfo().

Reviewed-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20241031200842.22712-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c
index 088201de96274b2b18aac3a4c4ad87bd370ca7ad..83ebcc8c83eb0aefbc88600171b327564bf62bba 100644 (file)
--- a/drivers/gpio/gpiolib-cdev.c
+++ b/drivers/gpio/gpiolib-cdev.c
@@ -2275,7 +2275,6 @@ static void gpio_desc_to_lineinfo(struct gpio_desc *desc,
         */
        if (test_bit(FLAG_REQUESTED, &dflags) ||
            test_bit(FLAG_IS_HOGGED, &dflags) ||
-           test_bit(FLAG_USED_AS_IRQ, &dflags) ||
            test_bit(FLAG_EXPORT, &dflags) ||
            test_bit(FLAG_SYSFS, &dflags) ||
            !gpiochip_line_is_valid(guard.gc, info->offset)) {