linux-kernel - Re: [PATCH 3.16 012/114] drm/i915: Exit cherryview_irq

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Date:	Tue, 14 Jun 2016 13:48:47 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	akpm@...ux-foundation.org, Chris Wilson <chris@...is-wilson.co.uk>,
	Jani Nikula <jani.nikula@...el.com>,
	Tvrtko Ursulin <tvrtko.ursulin@...el.com>,
	Antti Koskipää 
	<antti.koskipaa@...ux.intel.com>
Subject: Re: [PATCH 3.16 012/114] drm/i915: Exit cherryview_irq_handler()
 after one pass

On Tue, 2016-06-14 at 15:08 +0300, Ville Syrjälä wrote:
> On Tue, Jun 14, 2016 at 12:37:34PM +0100, Ben Hutchings wrote:
> > On Tue, 2016-06-14 at 13:47 +0300, Ville Syrjälä wrote:
> > > On Mon, Jun 13, 2016 at 07:36:37PM +0100, Ben Hutchings wrote:
> > > > 3.16.36-rc1 review patch.  If anyone has any objections, please let me know.
> > > 
> > > Do not backport this one. It'll break things.
> > 
> > But this has not been re-reverted in mainline, has it?  Is it that
> > 3.16-stable would need more changes backported to make this work, or is
> > mainline currently broken on Cherryview hardware?
> 
> No, as of 4.7 we have a proper fix, but it's a bit too big to backport
> (see [1]). I think 4.6.x is still busted, but Greg said he'd revert
> this broken patch there, so it should get fixed eventually.
> 
> OTOH CHV wasn't even officially supported until maybe 4.1, so whatever
> you do in 3.16 shouldn't really matter.

OK, I've dropped this.

> It's a bit tedious having to block the same patch from different stable
> trees over and over again. It would be nice it there would be some kind
> of stable blacklist you guys could share so that we wouldn't have to
> repeat this dance with every stable maintainer...

Sorry about that; I do try to look for things like that on the stable
list but it's too high volume for me to keep up with most of the time.

Ben.

-- 
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
                                                              - Albert
Camus

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