linux-kernel - Re: [PATCH] kbuild: dummy-tools: Add python3

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Message-ID: <CAK7LNARi74v2tc+iddm0WwTD-3HcJQujY=KV1TJV95in=Hkr6w@mail.gmail.com>
Date: Wed, 4 Feb 2026 17:16:33 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Nathan Chancellor <nathan@...nel.org>
Cc: linux-kbuild@...r.kernel.org, Michal Suchanek <msuchanek@...e.de>, 
	Nicolas Schier <nsc@...nel.org>, Rob Clark <robin.clark@....qualcomm.com>, 
	Dmitry Baryshkov <lumag@...nel.org>, Abhinav Kumar <quic_abhinavk@...cinc.com>, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kbuild: dummy-tools: Add python3

On Wed, Feb 4, 2026 at 4:46 PM Nathan Chancellor <nathan@...nel.org> wrote:
>
> On Wed, Feb 04, 2026 at 04:10:24PM +0900, Masahiro Yamada wrote:
> > On Fri, Jan 30, 2026 at 9:17 AM Nathan Chancellor <nathan@...nel.org> wrote:
> > >
> > > On Wed, 21 Jan 2026 11:57:57 +0100, Michal Suchanek wrote:
> > > > DRM_MSM_VALIDATE_XML depends on a python feature. Add a dummy python
> > > > interpreter to make it possible to configure this option with dummy
> > > > tools.
> > > >
> > > >
> > >
> > > Applied to
> > >
> > >   https://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux.git kbuild-next
> > >
> > > Thanks!
> > >
> > > [1/1] kbuild: dummy-tools: Add python3
> > >       https://git.kernel.org/kbuild/c/76c73cfde7988
> > >
> > > Please look out for regression or issue reports or other follow up
> > > comments, as they may result in the patch/series getting dropped or
> > > reverted. Patches applied to an "unstable" branch are accepted pending
> > > wider testing in -next and any post-commit review; they will generally
> > > be moved to the main branch in a week if no issues are found.
> > >
> > > Best regards,
> > > --
> > > Nathan Chancellor <nathan@...nel.org>
> >
> >
> > This was unneeded because we can pass PYTHON3=true
> > from the command line?
>
> Hmmm yeah, I guess that is a fair point, I had not considered that
> alternative. I had figured that some folks may add scripts/dummy-tools
> to PATH like
>
>   $ PATH=$PWD/scripts/dummy-tools:$PATH make ...
>
> to have all relevant tools be used automatically from their default
> values than having to specify

Yeah, this seems to be a valid motivation for this patch.
Thanks.

>   $ make CROSS_COMPILE=scripts/dummy-tools/ PAHOLE=scripts/dummy-tools/pahole PYTHON3=true
>
> or whatever (at least, that is probably what I would do if I was using
> this).
>
> Cheers,
> Nathan



-- 
Best Regards
Masahiro Yamada