Re: [PATCH 00/24] ALSA: Generic PCM copy ops using sockptr_t

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On Mon, 31 Jul 2023 19:20:54 +0200,
Mark Brown wrote:
> 
> On Mon, Jul 31, 2023 at 05:46:54PM +0200, Takashi Iwai wrote:
> 
> > this is a patch set to clean up the PCM copy ops using sockptr_t as a
> > "universal" pointer, inspired by the recent patch from Andy
> > Shevchenko:
> >   https://lore.kernel.org/r/20230721100146.67293-1-andriy.shevchenko@xxxxxxxxxxxxxxx
> 
> > Even though it sounds a bit weird, sockptr_t is a generic type that is
> > used already in wide ranges, and it can fit our purpose, too.  With
> > sockptr_t, the former split of copy_user and copy_kernel PCM ops can
> > be unified again gracefully.
> 
> It really feels like we ought to rename, or add an alias for, the type
> if we're going to start using it more widely - it's not helping to make
> the code clearer.

That was my very first impression, too, but I changed my mind after
seeing the already used code.  An alias might work, either typedef or
define genptr_t or such as sockptr_t.  But we'll need to copy the
bunch of helper functions, too...


Takashi



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