Re: [PATCH 32/34] ASoC: remove incorrect of_match_ptr/ACPI_PTR annotations

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

On Wed, Apr 03, 2024 at 10:06:50AM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> When building with CONFIG_OF and/or CONFIG_ACPI disabled but W=1 extra
> warnings enabled, a lot of driver cause a warning about an unused
> ID table:
> 
> sound/soc/atmel/sam9x5_wm8731.c:187:34: error: unused variable 'sam9x5_wm8731_of_match' [-Werror,-Wunused-const-variable]
> sound/soc/codecs/rt5514-spi.c:496:34: error: unused variable 'rt5514_of_match' [-Werror,-Wunused-const-variable]
> sound/soc/samsung/aries_wm8994.c:524:34: error: unused variable 'samsung_wm8994_of_match' [-Werror,-Wunused-const-variable]
> 
> The fix is always to just remove the of_match_ptr() and ACPI_PTR() wrappers
> that remove the reference, rather than adding another #ifdef just for build
> testing for a configuration that doesn't matter in practice.

...

> index d6cdb6d9fdd6..ffc105759994 100644
> --- a/sound/soc/amd/acp3x-rt5682-max9836.c
> +++ b/sound/soc/amd/acp3x-rt5682-max9836.c
> @@ -543,7 +543,7 @@ MODULE_DEVICE_TABLE(acpi, acp3x_audio_acpi_match);
>  static struct platform_driver acp3x_audio = {
>  	.driver = {
>  		.name = "acp3x-alc5682-max98357",
> -		.acpi_match_table = ACPI_PTR(acp3x_audio_acpi_match),
> +		.acpi_match_table = acp3x_audio_acpi_match,
>  		.pm = &snd_soc_pm_ops,
>  	},
>  	.probe = acp3x_probe,

Replace acpi_match_device() by device_get_match_data() and acpi.h by
mod_devicetable.h + property.h.

I really would like to see agnostic drivers (when they don't need of*.h/acpi.h
to be included as "proxy" headers).

With this, the change probably needs to be separated from this patch.

If you address as suggested,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

...

The rest I haven't checked, it might be possible to do something similar there
as well.

-- 
With Best Regards,
Andy Shevchenko