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

[Valdis . Kletnieks]

On Tue, 27 Mar 2012 17:07:14 +0100, Matthew Garrett said:

> 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.

Conversely, if a maintainer does fixups on a patch while commiting
it, we *don't* discard the original Signed-off-by.   I'd say if somebody's
submitting somebody else's patch, the chain should be:

signed-off-by: original author
signed-off-by: the person who did the updates
signed-off-by: <chain of maintainers heading upstream>

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