Re: [Sound-open-firmware] [PATCH v4 01/14] ASoC: SOF: Add Sound Open Firmware driver core

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On Thu, Feb 14, 2019 at 08:53:11AM -0600, Pierre-Louis Bossart wrote:
> On 2/14/19 3:25 AM, Takashi Iwai wrote:
> > On Wed, 13 Feb 2019 23:07:21 +0100,
> > Pierre-Louis Bossart wrote:

> > > +	/* private data - core does not touch */
> > > +	void *private; /* FIXME: still SOF-specific, needs to less ambiguous */

> > Then better to name it sof_private?

> Ah, this is a mistake in the FIXME comment.
> initially we had a field called "sof" and Mark made the following comment:

...

> so we added a FIXME to track this, then later we moved the field and renamed
> it 'private' so that it can be used by others if needed but didn't remove
> the FIXME. Will fix this.

That doesn't really address the issue - there's multiple drivers using
any given runtime so none of them can safely use a generically named
private data field.  Conversely putting a field specific to a given
driver into the core data structures opens the door to everyone wanting
their custom stuff in the core which is also a problem for different
reasons.  This would be a lot easier with the DSP represented as a first
class device in the system...

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