[PATCH] drm: Don't prepare or cleanup unchanging frame buffers [v2]

[Keith Packard]

Daniel Vetter <daniel at ffwll.ch> writes:

> Rebased onto 4.8 while applying, which did simplify the patch a lot (4.8
> is already using for_each_plane_in_state, but slightly differently).

Your rebase looks great, thanks!

-- 
-keith
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