[PATCH synaptics] Constify priv->device

[Peter Hutterer]

On Wed, Jan 04, 2012 at 08:41:25PM +0100, Mark Kettenis wrote:
> > Date: Wed, 4 Jan 2012 19:01:31 +0000
> > From: Daniel Stone
> > 
> > Hi,
> > 
> > > If Daniel Kurtz's analysis of the problem is right, and I believe it
> > > is, then this diff is just as wrong as the previous diff from Peter.
> > > It also means that the real culprit is Peter's change to constify
> > > XIChangeDeviceProperty(). ??While Daniel Kurtz's suggestion to
> > > introduce a cpointer typedef would work, I think it's better to drop
> > > the pointer typedef entirely and simply use "const void *" in the
> > > XIChangeDeviceProperty() prototype. ??We should probably deprecate the
> > > pointer typedef; I bet the reason it was introduced was to support
> > > pre-ANSI C, and I think we all agree that's irrelevant now.
> > 
> > I never saw Daniel's analysis,
> 
>    http://lists.x.org/archives/xorg-devel/2012-January/028243.html
> 
> > but even if it's true, we'll need to fix it somehow for this ABI
> > version anyway, and while the patch may not be excruciatingly
> > correct per se, it's certainly safe for the usage.
> 
> The change I'm suggesting won't affect the ABI in any way.

Isn't a change from 'void const *' to the intended 'const void *', which is
what a XIChangeDeviceProperty() fix would comprise, technically ABI? not
that it really matters in this case, imo.

Cheers,
  Peter