Re: [PATCH v2 2/2] docs: changes: better document Python needs

[Rob Herring <robh@kernel.org>]

On Tue, Jul 29, 2025 at 11:44 AM Mauro Carvalho Chehab
<mchehab+huawei@kernel.org> wrote:
>
> Python is listed as an optional dependency, but this is not
> true, as:
>
> 1) arm (multi_v7_defconfig and other defconfigs) and arm64 defconfig
>    needs it due to DRM_MSM dependencies;
>
> 2) CONFIG_LTO_CLANG runs a python script at scripts/Makefile.vmlinux_o;
>
> 3) kernel-doc is called during compilation when some DRM options
>    like CONFIG_DRM_I915_WERROR are enabled;
>
> 4) allyesconfig/allmodconfig will enable CONFIG_* dependencies
>    that needs it;
>
> 5) besides DRM, other subsystems seem to have logic calling *.py
>    scripts.
>
> So, better document that and change the dependency from optional
> to mandatory to reflect the current needs.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> ---
>  Documentation/process/changes.rst | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)

DT schema checks requires it too.

Acked-by: Rob Herring (Arm) <robh@kernel.org>