linux-kernel - Re: [PATCH v1 1/1] ALSA: korg1212: Re-use sockptr

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Date:   Fri, 21 Jul 2023 12:58:14 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCH v1 1/1] ALSA: korg1212: Re-use sockptr_t and respective APIs

On Fri, 21 Jul 2023 12:42:08 +0200,
Andy Shevchenko wrote:
> 
> On Fri, Jul 21, 2023 at 12:08:46PM +0200, Takashi Iwai wrote:
> > On Fri, 21 Jul 2023 12:01:46 +0200,
> > Andy Shevchenko wrote:
> > > 
> > > The sockptr_t (despite the naming) is a generic type to hold kernel
> > > or user pointer and there are respective APIs to copy data to or
> > > from it. Replace open coded variants in the driver by them.
> > 
> > While I see the benefit, I feel this is very confusing.  If we use the
> > API for a generic use, it should be renamed at first.
> > 
> > Also, the current function actually follows the call pattern, and we
> > know in the caller side whether it's called for a kernel pointer or a
> > user pointer.  So, if any, the PCM core callbacks should be revised to
> > use a generic pointer instead of fiddling in each driver side.
> 
> Any suggestion for the name?

It's a universal pointer...  uniptr_t?
Or a generic pointer, genptr_t?

I'm not good at naming, and I'm open for it.

> And I believe for the bigger series the new callback should be added first.

Yes.


Takashi