linux-kernel - Re: [Sound-open-firmware] [PATCH] ASoC: SOF: Intel: avoid reverse module dependency

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Date:   Tue, 12 Jan 2021 21:31:40 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc:     Takashi Iwai <tiwai@...e.de>,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Arnd Bergmann <arnd@...db.de>,
        "linux-kernel @ vger . kernel . org" <linux-kernel@...r.kernel.org>,
        Takashi Iwai <tiwai@...e.com>,
        YueHaibing <yuehaibing@...wei.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Mark Brown <broonie@...nel.org>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Daniel Baluta <daniel.baluta@....com>,
        sound-open-firmware@...a-project.org
Subject: Re: [Sound-open-firmware] [PATCH] ASoC: SOF: Intel: avoid reverse
 module dependency

On Tue, Jan 12, 2021 at 9:17 PM Pierre-Louis Bossart
<pierre-louis.bossart@...ux.intel.com> wrote:
>
>
> >> Since this is going to be a really invasive change, and past
> >> experience shows that mucking with Kconfigs will invariably raise a
> >> number of broken corner cases, if there is support from
> >> Mark/Takashi/Jaroslav on this idea, we should first test it in the SOF
> >> tree so that we get a good test coverage and don't break too many eggs
> >> in Mark's tree. We would also need to concurrently change our CI
> >> scripts which are dependent on module names.
> >
> > I'm in favor of the way Arnd proposed.  It's more straightforward and
> > less code.
>
> Thanks Takashi for the feedback.
>
> Since yesterday I looked at another problem where we can have unmet
> dependencies between SoundWire (m) and SOF (y), so we probably need to
> rethink all this. We had similar issue with SOF and HDaudio before, it's
> time to revisit all this.

I think I ran into the same thing yesterday, and came up with a patch for
that one as well. I think it should be independent of the other one but I did
not try it by itself.

I'll send it along with a fixed version of the one in this thread, together the
have now survived a few hundred randconfig builds.

       Arnd