[alsa-devel] Fix section mismatch in wm8995.c

Dimitris Papastamos dp at opensource.wolfsonmicro.com
Wed Jan 12 11:50:46 CET 2011

On Wed, 2011-01-12 at 10:46 +0000, Mark Brown wrote:
> On Wed, Jan 12, 2011 at 09:58:10AM +0000, Dimitris Papastamos wrote:
> > On Tue, 2011-01-11 at 18:14 +0000, Mark Brown wrote:
> > > That's a bug in the flat cache, it should be stashing a copy of it in
> > > the codec instance.  Though it only really makes a difference for
> > > devices where you'd want to use a compressed cache anyway.
> > The flat cache is intentionally *not* making a copy of the defaults
> > cache as it makes no difference in terms of memory usage.  The flat
> > cache has codec->reg_def_copy = NULL; and can work with either NULL
> > default caches or filled in.
> It can make a difference to memory usage - if multiple CODEC drivers are
> built in but only one is in use then if we take a copy all the defaults
> can be discared, meaning that we don't need to keep the defaults for the
> unused drivers and only keep the defaults for the one that's in use
> instead of keeping the defaults for all drivers.

Aha, indeed.  The patch I've prepared should be sufficient for this.


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