[PATCH] docs: document python version used for compilation

[Jonathan Corbet]

Dmitry Baryshkov <dmitry.baryshkov at linaro.org> writes:

> The drm/msm driver had adopted using Python3 script to generate register
> header files instead of shipping pre-generated header files. Document
> the minimal Python version supported by the script.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> ---
>  Documentation/process/changes.rst | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
> index 5685d7bfe4d0..8d225a9f65a2 100644
> --- a/Documentation/process/changes.rst
> +++ b/Documentation/process/changes.rst
> @@ -63,6 +63,7 @@ cpio                   any              cpio --version
>  GNU tar                1.28             tar --version
>  gtags (optional)       6.6.5            gtags --version
>  mkimage (optional)     2017.01          mkimage --version
> +Python (optional)      3.5.x            python3 --version
>  ====================== ===============  ========================================

Is it really optional - can you build the driver without it?

This document needs some help... I'm missing a number of things that are
*not* marked as "optional" (jfsutils, reiserfsprogs, pcmciautils, ppp,
...) and somehow my system works fine :)  It would be nice to document
*why* users might need a specific tool.

But I guess we aren't going to do that now.  I can apply this, but I do
wonder about the "optional" marking.

Thanks,

jon