Re: [PATCH 2/4] iio: dac: ad5755: mark OF related data as maybe unused

[Jonathan Cameron]

On Sat, 11 Mar 2023 12:14:55 +0100
Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> wrote:

> The driver can be compile tested with !CONFIG_OF making certain data
> unused (of_device_id is not used for device matching):

It should be used for device matching I think, so I'd rather see
it assigned for that purpose than hiding the issue.


> 
>   drivers/iio/dac/ad5755.c:865:34: error: ‘ad5755_of_match’ defined but not used [-Werror=unused-const-variable=]
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> ---
>  drivers/iio/dac/ad5755.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
> index beadfa938d2d..a6dc8a0bfc29 100644
> --- a/drivers/iio/dac/ad5755.c
> +++ b/drivers/iio/dac/ad5755.c
> @@ -862,7 +862,7 @@ static const struct spi_device_id ad5755_id[] = {
>  };
>  MODULE_DEVICE_TABLE(spi, ad5755_id);
>  
> -static const struct of_device_id ad5755_of_match[] = {
> +static const struct of_device_id ad5755_of_match[] __maybe_unused = {
>  	{ .compatible = "adi,ad5755" },
>  	{ .compatible = "adi,ad5755-1" },
>  	{ .compatible = "adi,ad5757" },