Re: drm-next + i915 CVE yolo merge

["Bloomfield, Jon" <jon.bloomfield@intel.com>]

> -----Original Message-----
> From: Daniel Vetter <daniel.vetter@ffwll.ch>
> Sent: Thursday, November 14, 2019 12:13 AM
> To: Dave Airlie <airlied@gmail.com>
> Cc: Jani Nikula <jani.nikula@linux.intel.com>; Bloomfield, Jon
> <jon.bloomfield@intel.com>; Joonas Lahtinen
> <joonas.lahtinen@linux.intel.com>; Chris Wilson <chris@chris-wilson.co.uk>;
> Stephen Rothwell <sfr@canb.auug.org.au>; dri-devel <dri-
> devel@lists.freedesktop.org>; Intel Graphics Development <intel-
> gfx@lists.freedesktop.org>; Linus Torvalds <torvalds@linux-foundation.org>
> Subject: Re: drm-next + i915 CVE yolo merge
> 
> On Thu, Nov 14, 2019 at 2:33 AM Dave Airlie <airlied@gmail.com> wrote:
> > The landing of the i915 CVE fixes into Linus tree has created a bit of
> > a mess in linux-next and downstream in drm-next trees.
> >
> > I talked to Daniel and he had talked to Joonas a bit, and I decided to
> > go with what Daniel describes as the YOLO merge, where I just solve it
> > and pray, and everyone else verifies/fixes it.
> >
> > In my favour I've been reading these patches for a couple of months
> > now and applied them to a lot of places, so I'm quite familiar with
> > what they are doing.
> >
> > The worst culprit was the RC6 ctx corruption fix since the whole of
> > rc6 got refactored in next. However I also had access to a version of
> > this patch Jon wrote on drm-tip a couple of weeks ago.
> >
> > I took that patch, applied it and fixed it up on top of drm-next. Then
> > I backmerged the commit that also went into Linus' tree. Then I
> > removed any evidence of the RC6 patch from Linus' tree and left the
> > newer version pieces in place. The other stuff mostly merged fine and
> > the results looked fine, but I'd definitely think everyone at Intel
> > should be staring at it, and my dinq tip resolutions ASAP and
> > hopefully it goes into CI and comes out smelling of something good.
> >

Imre should look at the RC6 fix - He did all the hard work on that, including the rebases I sent to Dave. I was just a proxy :-)

> > Let me know if it's all horrible asap,
> 
> Add Martin and Arek for CI results. The yolo stuff landed in
> CI_DRM_7340, did we break anything in there? From a quick look seems
> all ok.

Jon
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