[Intel-gfx] [PATCH] drm: Paper over locking inversion after registration rework

Daniel Vetter daniel at ffwll.ch
Fri Aug 5 09:21:59 UTC 2016


On Fri, Aug 05, 2016 at 10:57:58AM +0200, Jiri Kosina wrote:
> On Thu, 4 Aug 2016, Daniel Vetter wrote:
> 
> > drm_connector_register_all requires a few too many locks because our
> > connector_list locking is busted. Add another FIXME+hack to work
> > around this. This should address the below lockdep splat:
> [ ... snip ... ]
> > v2: Rebase onto the right branch (hand-editing patches ftw) and add more
> > reporters.
> > 
> > Reported-by: Imre Deak <imre.deak at intel.com>
> > Cc: Imre Deak <imre.deak at intel.com>
> > Cc: Chris Wilson <chris at chris-wilson.co.uk>
> > Acked-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Reported-by: Jiri Kosina <jikos at kernel.org>
> 
> Although I have no idea why this is safe thing to do :) I can confirm that 
> it removes the lockdep complaint on my system. So in that regard,
> 
> 	Tested-by: Jiri Kosina <jkosina at suse.cz>

Dave, can you pls pick this up for 4.8?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch


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