Re: [PATCH v18 01/19] EDAC: Add support for EDAC device features control

[Mauro Carvalho Chehab <mchehab+huawei@kernel.org>]

Em Tue, 14 Jan 2025 10:08:42 +0000
Shiju Jose <shiju.jose@huawei.com> escreveu:

> >> diff --git a/Documentation/edac/features.rst
> >> b/Documentation/edac/features.rst new file mode 100644 index
> >> 000000000000..f32f259ce04d
> >> --- /dev/null
> >> +++ b/Documentation/edac/features.rst
> >> @@ -0,0 +1,94 @@
> >> +.. SPDX-License-Identifier: GPL-2.0  
> >
> >SPDX should match what's written there, e. g.
> >
> >	.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.2-no-invariants-or-later
> >
> >Please notice that GNU FDL family contains both open source and non-open
> >source licenses. The open-source one is this:
> >
> >	https://spdx.org/licenses/GFDL-1.2-no-invariants-or-later.html
> >
> >E.g. it is a the license permits changing the entire document in the future, as
> >there's no invariant parts on it.  
> This seems not widely used, have seen this is used in few documents only. 

This was added after some discussions I had with LF people in charge
of SPDX: GFDL explicitly allows to have some parts that can't be touched
by future patches. Those are "invariant" parts of the document.

They were designed in a way that the original author's notes
can't be touched on any further patch from someone's else. 

You can see more about that at:

	https://www.gnu.org/licenses/fdl-howto-opt.en.html

See:

	"The classical example of an invariant nontechnical section in a free manual
	 is the GNU Manifesto, which is included in the GNU Emacs Manual. The GNU
	 Manifesto says nothing about how to edit with Emacs, but it explains the
	 reason why I wrote GNU Emacs"

And:
	https://www.gnu.org/gnu/manifesto.html

Due to its nature of being invariant, most people consider it as a
non-open-source license. See, for instance:

	https://www.debian.org/vote/2006/vote_001

Due to such concerns, after several discussions I had with interested parties,
this was added to SPDX spec and to the Linux Kernel:

	- GFDL-1.2-no-invariants-only - for GFDL v 1.2 only
	- GFDL-1.2-no-invariants-or-later - for GFDL v 1.2 or later

(plus variants for other GFDL versions)

You may use either one of them, but you should *not* use GFDL-1.2
as this is deprecated:

	https://spdx.org/licenses/GFDL-1.2.html

And need to be replaced by either:

	https://spdx.org/licenses/GFDL-1.2-no-invariants-or-later.html
or:
	https://spdx.org/licenses/GFDL-1.2-invariants-only.html

Thanks,
Mauro