linux-kernel - Re: [PATCH 29/38] ASoC: tas2562: skip of_device_id table when !CONFIG

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Date:   Fri, 20 Nov 2020 10:21:56 -0600
From:   Dan Murphy <dmurphy@...com>
To:     Krzysztof Kozlowski <krzk@...nel.org>,
        <linux-kernel@...r.kernel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, <alsa-devel@...a-project.org>
CC:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Jonghwan Choi <charlie.jh@...aocorp.com>
Subject: Re: [PATCH 29/38] ASoC: tas2562: skip of_device_id table when
 !CONFIG_OF

Hello

On 11/20/20 10:16 AM, Krzysztof Kozlowski wrote:
> The driver can match by multiple methods.  Its of_device_id table is
> referenced via of_match_ptr() so it will be unused for !CONFIG_OF
> builds:
>
>    sound/soc/codecs/tas2562.c:805:34: warning: ‘tas2562_of_match’ defined but not used [-Wunused-const-variable=]
>
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> ---
>   sound/soc/codecs/tas2562.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/sound/soc/codecs/tas2562.c b/sound/soc/codecs/tas2562.c
> index f1ff204e3ad0..19965fabe949 100644
> --- a/sound/soc/codecs/tas2562.c
> +++ b/sound/soc/codecs/tas2562.c
> @@ -802,6 +802,7 @@ static const struct i2c_device_id tas2562_id[] = {
>   };
>   MODULE_DEVICE_TABLE(i2c, tas2562_id);
>   
> +#ifdef CONFIG_OF

Should we use #if IS_ENABLED(CONFIG_OF) ?

Dan