Re: [PATCH v4] x86, olpc: add debugfs interface for EC commands

From: Matthew Garrett
Date: Tue Mar 27 2012 - 12:07:30 EST

On Mon, Mar 26, 2012 at 02:51:46PM -0700, Andrew Morton wrote:

> Well, if a person had any contribution at all, we should seek their
> Signed-off-by:. Otherwise they could say "hey, you admitted using my
> code but I did not authorise its use", or any other range of bad IANAL
> things?

The Certificate of Origin says:

(b) The contribution is based upon previous work that, to the best
of my knowledge, is covered under an appropriate open source
license and I have the right under that license to submit that
work with modifications, whether created in whole or in part
by me, under the same open source license (unless I am
permitted to submit under a different license), as indicated
in the file; or

If a previous author has given a Signed-off-by then they've clearly
indicated that their code is under an appropriate license and may be
submitted to the kernel. If someone else then takes that code, modifies
it and submits it then there's no obvious reason why we still need the
original Signed-off-by. Giving credit to the original author is
obviously appropriate, but I don't see why we need any more than that.

Matthew Garrett | mjg59@xxxxxxxxxxxxx
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