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

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Message-ID: <875y6dfips.wl-tiwai@suse.de>
Date:   Fri, 21 Jul 2023 16:21:51 +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 14:58:05 +0200,
Andy Shevchenko wrote:
> 
> On Fri, Jul 21, 2023 at 12:58:14PM +0200, Takashi Iwai wrote:
> > 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:
> 
> ...
> 
> > > > 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.
> 
> > > 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.
> 
> It seems it's already spread enough with this name, I would rather stick with
> it for now (besides net it's used in crypto, nvme, and security).
> 
> The (new) callback though makes a lot of sense on its own.

OK, fair enough.

> What do you think?

Yes, we can go with it.

Basically we need to add a new "copy" callback to take sockptr_t and
use it instead of the old "copy_kernel" and "copy_user" callbacks.
It's used only in sound/core/pcm_lib.c, so it shouldn't be too
difficult, I suppose.
Then replace the defined callbacks in each driver, and finally
deprecate old callbacks.


thanks,

Takashi