linux-kernel - Re: SPDX conversion under scripts/dtc/ of Linux Kernel

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Message-ID: <CAL_JsqJQ0bkMMpgA_JpGf-mo8ue28XpGf7oMFJ8bScGAmc+_1g@mail.gmail.com>
Date:   Wed, 19 Jun 2019 09:39:13 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        David Gibson <david@...son.dropbear.id.au>,
        linux-spdx@...r.kernel.org,
        Devicetree Compiler <devicetree-compiler@...r.kernel.org>,
        DTML <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Frank Rowand <frowand.list@...il.com>
Subject: Re: SPDX conversion under scripts/dtc/ of Linux Kernel

On Wed, Jun 19, 2019 at 6:59 AM Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> On Wed, Jun 19, 2019 at 07:23:19PM +0900, Masahiro Yamada wrote:
> > Hi.
> >
> > In this development cycle of Linux kernel,
> > lots of files were converted to use SPDX
> > instead of the license boilerplate.
> >
> > However.
> >
> > Some files were imported from a different project,
> > and are periodically synchronized with the upstream.
> > Have we discussed what to do about this case?
> >
> >
> > For example, scripts/dtc/ is the case.
> >
> > The files in scripts/dtc/ are synced with the upstream
> > device tree compiler.
> >
> > Rob Herring periodically runs scripts/dtc/update-dtc-source.sh
> > to import outcome from the upstream.
> >
> >
> > The upstream DTC has not adopted SPDX yet.
> >
> > Some files in Linux (e.g. scripts/dtc/dtc.c)
> > have been converted to SPDX.
> >
> > So, they are out of sync now.
> >
> > The license boilerplate will come back
> > when Rob runs scripts/dtc/update-dtc-source.sh
> > next time.

Already has. It just happened and is in next. The policy is everything
is upstream first and any changes to dtc in the kernel are rejected.

> >
> > What shall we do?
> >
> > [1] Convert upstream DTC to SPDX
> >
> > This will be a happy solution if it is acceptable in DTC.
> > Since we cannot push the decision of the kernel to a different
> > project, this is totally up to David Gibson.
>
> That's fine with me :)

I'll do the work if David is okay with it.

> > [2] Change scripts/dtc/update-dtc-source.sh to
> >     take care of the license block somehow
>
> That would also be good.
>
> > [3] Go back to license boilerplate, and keep the files
> >     synced with the upstream
> >     (and scripts/dtc/ should be excluded from the
> >      SPDX conversion tool.)
>
> nothing is being excluded from the SPDX conversions, sorry.  The goal is
> to do this for every file in the kernel tree.  Otherwise it's pointless.
>
> > Or, what else?
>
> Rob remembers to keep those first lines of the files intact when doing
> the next sync?

Patches to the import script are welcome. The only thing I have to
remember running the script is to add any new files. Otherwise, it's
scripted so I don't have to remember anything.

Rob