linux-kernel - Re: [PATCH] Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached"

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Date:   Mon, 5 Oct 2020 19:38:21 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>, od@...c.me,
        Dave Airlie <airlied@...ux.ie>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        DRI <dri-devel@...ts.freedesktop.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Sam Ravnborg <sam@...nborg.org>, Christoph Hellwig <hch@....de>
Subject: Re: [PATCH] Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached"

On Mon, Oct 5, 2020 at 4:47 PM Paul Cercueil <paul@...pouillou.net> wrote:
>
> Hi,
>
> Le lun. 5 oct. 2020 à 16:05, Daniel Vetter <daniel@...ll.ch> a écrit :
> > On Mon, Oct 05, 2020 at 11:01:50PM +1100, Stephen Rothwell wrote:
> >>  Hi Paul,
> >>
> >>  On Sun, 04 Oct 2020 22:11:23 +0200 Paul Cercueil
> >> <paul@...pouillou.net> wrote:
> >>  >
> >>  > Pushed to drm-misc-next with the changelog fix, thanks.
> >>  >
> >>  > Stephen:
> >>  > Now it should build fine again. Could you remove the BROKEN flag?
> >>
> >>  Thanks for letting me know, but the fix has not appeared in any drm
> >>  tree included in linux-next yet ...
> >>
> >>  If it doesn't show up by the time I will merge the drm tree
> >> tomorrow, I
> >>  will apply this revert patch myself (instead of the patch marking
> >> the
> >>  driver BROKEN).
> >
> > Yeah it should have been pushed to drm-misc-next-fixes per
> >
> > https://drm.pages.freedesktop.org/maintainer-tools/committer-drm-misc.html#where-do-i-apply-my-patch
> >
> > Paul, can you pls git cherry-pick -x this over to drm-misc-next-fixes?
>
> I had a few commits on top of it in drm-misc-next, so the revert
> doesn't apply cleanly in drm-misc-next-fixes... I can revert it there,
> but then we'd have a different revert commit in drm-misc-next and
> drm-misc-next-next.
>
> Sorry for the mess. What should I do?

We need the revert in drm-misc-next-fixes or the drm-next pull request
doesn't work out. So cherry-pick over, fix up conflicts, push the
tree, and don't forget to fix up the conflicts when dim rebuilds
drm-tip. Also tell drm-misc maintainers what you've done, they
probably want to do a backmerge to clean this up a bit once the
drm-next pull request has landed.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch