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Subject: Re: [PATCH v2] ASoC: Intel: boards: Fix CONFIG_SND_SOC_SDW_MOCKUP
 select
To:     Nathan Chancellor <nathan@kernel.org>,
        Cezary Rojewski <cezary.rojewski@intel.com>,
        Liam Girdwood <liam.r.girdwood@linux.intel.com>,
        Jie Yang <yang.jie@linux.intel.com>,
        Mark Brown <broonie@kernel.org>,
        Fabio Aiuto <fabioaiuto83@gmail.com>
Cc:     linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org,
        Takashi Iwai <tiwai@suse.com>
References: <20210802190351.3201677-1-nathan@kernel.org>
 <20210802212409.3207648-1-nathan@kernel.org>
From:   Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Message-ID: <da246896-fbd3-be8d-355f-3c0a83e7d4eb@linux.intel.com>
Date:   Thu, 2 Sep 2021 10:02:18 -0500
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On 8/2/21 4:24 PM, Nathan Chancellor wrote:
> When CONFIG_SND_SOC_INTEL_SOUNDWIRE_SOF_MACH is enabled without
> CONFIG_EXPERT, there is a Kconfig warning about unmet dependencies:
> 
> WARNING: unmet direct dependencies detected for SND_SOC_SDW_MOCKUP
>   Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] &&
> EXPERT [=n] && SOUNDWIRE [=y]
>   Selected by [y]:
>   - SND_SOC_INTEL_SOUNDWIRE_SOF_MACH [=y] && ...
> 
> Selecting a symbol does not account for dependencies. There are three
> ways to resolve this:
> 
> 1. Make CONFIG_SND_SOC_INTEL_SOUNDWIRE_SOF_MACH select
>    CONFIG_SND_SOC_SDW_MOCKUP only if CONFIG_EXPERT is set.
> 
> 2. Make CONFIG_SND_SOC_SDW_MOCKUP's prompt depend on CONFIG_EXPERT so
>    that it can be selected by options that only depend on
>    CONFIG_SOUNDWIRE but still appear as a prompt to the user when
>    CONFIG_EXPERT is set.
> 
> 3. Make CONFIG_SND_SOC_INTEL_SOUNDWIRE_SOF_MACH imply
>    CONFIG_SND_SOC_SDW_MOCKUP, which will select
>    CONFIG_SND_SOC_SDW_MOCKUP when its dependencies are enabled but still
>    allow the user to disable it.
> 
> Go with the third option as it gives the most flexibility while
> retaining the original intent of the select.
> 
> Fixes: 0ccac3bcf356 ("ASoC: Intel: boards: sof_sdw: add SoundWire mockup codecs for tests")
> Suggested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>

This patch was missed, maybe because I didn't provide a formal ack on my
own suggestion, so here goes:

Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

Mark, can you add it to 5.15 fixes please? Thank you.
-Pierre