Re: [PATCH] Revert "apple-gmux: lock iGP IO to protect from vgaarb changes"

[Lukas Wunner <lukas@wunner.de>]

On Thu, Jan 25, 2018 at 02:38:00PM -0800, Darren Hart wrote:
> On Wed, Jan 24, 2018 at 07:35:45PM +0100, Lukas Wunner wrote:
> > Commit 4eebd5a4e726 ("apple-gmux: lock iGP IO to protect from vgaarb
> > changes") amended this driver's ->probe hook to lock decoding of normal
> > (non-legacy) I/O space accesses to the integrated GPU on dual-GPU
> > MacBook Pros.  The lock stays in place until the driver is unbound.
> > 
> ...
> > 
> > So let's revert commit 4eebd5a4e726 please.  Users experiencing the
> > issue with the proprietary nvidia driver can comment out the above-
> > quoted problematic code as a workaround (or try updating the BIOS).
> > 
> > Cc: Petri Hodju <petrihodju@yahoo.com>
> > Cc: Bjorn Helgaas <bhelgaas@google.com>
> > Cc: Bruno Prémont <bonbons@linux-vserver.org>
> > Cc: Andy Ritger <aritger@nvidia.com>
> > Cc: Ronald Tschalär <ronald@innovation.ch>
> 
> I presume we'd like to see this applied to linux-stable as well?

Fine by me.  Can you add the stable designation when applying or
would you prefer me to respin?

Thanks,

Lukas