[Intel-gfx] i915 fbdev AB/BA locking issue

[Chris Wilson]

On Wed, Jul 20, 2016 at 02:14:12PM +0100, Daniel Stone wrote:
> Hi Chris,
> I'm assuming this has come from the async fbdev work: I'm now (today's
> din) getting lockdep splat about AB/BA between the fbdev notifier lock
> versus mode_config. It's attached below; seems like it should probably
> be fixed up. I guess it only shows on systems with a backlight (in my
> case, eDP).

Right, it's the backlight notify vs fbdev. Patch to stop backlight
duplicating our work https://patchwork.freedesktop.org/series/9316/
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre