diff options
| author | Tzung-Bi Shih <tzungbi@kernel.org> | 2022-07-18 13:50:47 +0300 |
|---|---|---|
| committer | Tzung-Bi Shih <tzungbi@kernel.org> | 2022-07-20 04:22:59 +0300 |
| commit | 7e76e4bc00999846c17604dc25486fffa542078d (patch) | |
| tree | 4148441078b3d2b8cb8750344d9a83dee14a37b2 /drivers/platform/chrome | |
| parent | 9399b2cb20702fde2a5f9c6aec9cd70d21d40a00 (diff) | |
| download | linux-7e76e4bc00999846c17604dc25486fffa542078d.tar.xz | |
platform/chrome: cros_kbd_led_backlight: fix build warning
drivers/platform/chrome/cros_kbd_led_backlight.c got a new build warning
when using the randconfig in [1]:
>>> warning: unused variable 'keyboard_led_drvdata_ec_pwm'
The warning happens when CONFIG_CROS_EC is set but CONFIG_OF is not set.
Reproduce:
- mkdir build_dir
- wget [1] -O build_dir/.config
- COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 \
O=build_dir ARCH=s390 SHELL=/bin/bash drivers/platform/chrome/
Fix the warning by using __maybe_unused. Also use IS_ENABLED() because
CROS_EC is a tristate.
[1]: https://download.01.org/0day-ci/archive/20220717/202207170538.MR39dw8m-lkp@intel.com/config
Fixes: 40f58143745e ("platform/chrome: cros_kbd_led_backlight: support EC PWM backend")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Link: https://lore.kernel.org/r/20220718105047.2356542-1-tzungbi@kernel.org
Diffstat (limited to 'drivers/platform/chrome')
| -rw-r--r-- | drivers/platform/chrome/cros_kbd_led_backlight.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/platform/chrome/cros_kbd_led_backlight.c b/drivers/platform/chrome/cros_kbd_led_backlight.c index 5ad41c10412d..793fd3f1015d 100644 --- a/drivers/platform/chrome/cros_kbd_led_backlight.c +++ b/drivers/platform/chrome/cros_kbd_led_backlight.c @@ -119,7 +119,7 @@ static const struct keyboard_led_drvdata keyboard_led_drvdata_acpi = { #endif /* CONFIG_ACPI */ -#ifdef CONFIG_CROS_EC +#if IS_ENABLED(CONFIG_CROS_EC) static int keyboard_led_set_brightness_ec_pwm(struct led_classdev *cdev, @@ -180,18 +180,18 @@ static int keyboard_led_init_ec_pwm(struct platform_device *pdev) return 0; } -static const struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm = { +static const __maybe_unused struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm = { .init = keyboard_led_init_ec_pwm, .brightness_set_blocking = keyboard_led_set_brightness_ec_pwm, .brightness_get = keyboard_led_get_brightness_ec_pwm, .max_brightness = KEYBOARD_BACKLIGHT_MAX, }; -#else /* CONFIG_CROS_EC */ +#else /* IS_ENABLED(CONFIG_CROS_EC) */ -static const struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm = {}; +static const __maybe_unused struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm = {}; -#endif /* CONFIG_CROS_EC */ +#endif /* IS_ENABLED(CONFIG_CROS_EC) */ static int keyboard_led_probe(struct platform_device *pdev) { |