linux-kernel - Re: linux-next: build failure after merge of the drm tree

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Message-ID: <CAKMK7uGb2B+rvs90f9gGVTVXr8n0wUXuz1A6XcuLBRv=grQR0g@mail.gmail.com>
Date:   Mon, 20 Mar 2017 09:05:09 +0100
From:   Daniel Vetter <daniel.vetter@...ll.ch>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Dave Airlie <airlied@...ux.ie>,
        Intel Graphics <intel-gfx@...ts.freedesktop.org>,
        DRI <dri-devel@...ts.freedesktop.org>,
        linux-next <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Jani Nikula <jani.nikula@...el.com>
Subject: Re: linux-next: build failure after merge of the drm tree

On Mon, Mar 20, 2017 at 9:03 AM, Daniel Vetter <daniel.vetter@...ll.ch> wrote:
> On Mon, Mar 20, 2017 at 1:51 AM, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>> This cherry picking of fixes from new development back to Linus' tree
>> can be a real pain when so many other changes happen in the same files.
>
> One possible fix for this would be if you reuse our rerere cache. The
> only reason we don't go insane with all the drm conflicts is that we
> completely distributed conflict resolution. Developers push a patch,
> script tells them there's a conflict, they resolve it, maintainers
> never even notice.We only notice when we double-check the merge
> resolution when rerere re-applies it for the real backmerge :-) The
> merge order in drm-tip should also match what you have in linux-next,
> so you should be able to entirely reuse them.
>
> Anyway, if you trust us enough to scoop up random git rerere caches
> (or at least use them to double-check your own), they're all public:
>
> git://anongit.freedesktop.org/drm-tip rerere-cache
>
> Or
>
> https://cgit.freedesktop.org/drm-tip/tree/rr-cache?h=rerere-cache
>
> Yes we should probably gc them, but disk space is cheap.

And the merge order, in case you want to check that. We can adjust it ofc:

https://cgit.freedesktop.org/drm-tip/tree/nightly.conf?h=rerere-cache

Cheers, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch