Re: [PATCH v3 00/12] of: overlay: clean up device tree overlay code

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On Tue, Oct 17, 2017 at 6:36 PM,  <frowand.list@xxxxxxxxx> wrote:
> From: Frank Rowand <frank.rowand@xxxxxxxx>
>
> I have found the device tree overlay code to be difficult to read and
> maintain.  This patch series attempts to improve that situation.
>
> The cleanup includes some changes visible to users of overlays.  The
> only in kernel user of overlays is fixed up for those changes.  The
> in kernel user is:
>
>    drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c
>
> Following the cleanup patches are a set of patches to fix various
> issues.
>
> The first five patches are intended to not make any functional
> changes, and are segrated to ease review.
>
> Version 3 applies on top of ac0f3e30d87e "of: overlay: fix memory
> leak related to duplicated property"
>
>
>
> Changes from version 2:
>    - rebase on Rob's dt/next branch
>    - 3/12: do missing renames in of_fill_overlay_info() so that 3/12
>      and 4/12 build.  This function is removed in 5/12.
>
> Changes from version 1:
>
>   - squash "[PATCH] of: overlay: move resolve phandles into
>     of_overlay_apply()" into "[PATCH 09/12] of: overlay: avoid race
>     condition between applying multiple overlays"
>
>
> Frank Rowand (12):
>   of: overlay.c: Remove comments that state the obvious, to reduce
>     clutter
>   of: overlay.c: Convert comparisons to zero or NULL to logical
>     expressions
>   of: overlay: rename identifiers to more reflect what they do
>   of: overlay: rename identifiers in dup_and_fixup_symbol_prop()
>   of: overlay: minor restructuring
>   of: overlay: detect cases where device tree may become corrupt
>   of: overlay: expand check of whether overlay changeset can be removed
>   of: overlay: loosen overly strict phandle clash check
>   of: overlay: avoid race condition between applying multiple overlays
>   of: overlay: simplify applying symbols from an overlay
>   of: overlay: remove a dependency on device node full_name
>   of: overlay: remove unneeded check for NULL kbasename()
>
>  Documentation/devicetree/overlay-notes.txt   |   12 +-
>  drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c |   14 +-
>  drivers/of/base.c                            |    2 +-
>  drivers/of/dynamic.c                         |  137 +++-
>  drivers/of/of_private.h                      |   22 +-
>  drivers/of/overlay.c                         | 1042 ++++++++++++++++----------
>  drivers/of/resolver.c                        |    7 +
>  drivers/of/unittest.c                        |   81 +-
>  include/linux/of.h                           |   17 +-
>  9 files changed, 874 insertions(+), 460 deletions(-)

Series applied.

Rob
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