Re: [PATCH v6] checkpatch.pl: Add SPDX license tag check

[Philippe Ombredanne]

Kate,

On Fri, Feb 2, 2018 at 9:18 PM, Kate Stewart
<kstewart@xxxxxxxxxxxxxxxxxxx> wrote:
> This is the new way to represent GPLv2 only, as described above.
> While the GPL-2.0 and GPL-2.0+ notation is still valid,  it is deprecated
> in the latest version, so transitioning existing over time will probably
> be needed.   So I think the list of licenses to be added to
> LICENSES/ path is:
>
> APACHE-2.0
> BSD
> CDDL
> CDDL-1.0
> ISC
> GPL-1.0-only
> GPL-1.0-or-later (note: actually same contents as one GPL-1.0-only)
> GPL-2.0-only
> GPL-2.0-or-later (same contents as GPL-2.0-only)
> LGPL-2.0-only
> LGPL-2.0-or-later (same contents as LGPL-2.0-only)
> LGPL-2.1-only
> LGPL-2.1-or-later (same contents as LGPL-2.1-only)
> OpenSSL

Yes, this is the new SPDX was (-only) but this is not yet the kernel
way and doc.

IMHO as long as the new SPDX "GPL-2.0-only" are not what is in the
kernel doc they should not be used and banned. Otherwise, we are
looking at creating an infinite source of confusion
therefore we should not add the -only license for now until they
become the kernel ways.
Joe already spotted drifts and I tried to fight these as much as I
could. One id for one license at a time is the only sane way to go.
-- 
Cordially
Philippe Ombredanne