Re: [PATCH] docs: Explicitly state ordering requirements for Co-developed-by

[Jani Nikula <jani.nikula@linux.intel.com>]

On Wed, 20 Mar 2019, Sean Christopherson <sean.j.christopherson@intel.com> wrote:
> Per Thomas' yet-to-be-merged "tip tree handbook"[1], Co-developed-by and
> Signed-off-by must be paired together, i.e. the co-authors' SOB mustn't
> be scattered willy-nilly, and the author's SOB must be the first SOB
> *after* the last Co-developed-by/Signed-off-by pair.  Provide an example
> to eliminate any ambiguity.
>
> [1] http://lkml.kernel.org/r/20181107171149.165693799@linutronix.de
>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
> Cc: Jonathan Cameron <jic23@kernel.org>
> Cc: Joe Perches <joe@perches.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Niklas Cassel <niklas.cassel@linaro.org>
> Cc: Jonathan Corbet <corbet@lwn.net>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> ---
>  Documentation/process/submitting-patches.rst | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst
> index be7d1829c3af..f4b5c4850601 100644
> --- a/Documentation/process/submitting-patches.rst
> +++ b/Documentation/process/submitting-patches.rst
> @@ -547,8 +547,13 @@ have been included in the discussion.
>  
>  A Co-developed-by: states that the patch was also created by another developer
>  along with the original author.  This is useful at times when multiple people
> -work on a single patch.  Note, this person also needs to have a Signed-off-by:
> -line in the patch as well.
> +work on a single patch.  Note, Co-developed-by: must be accompanied by a
> +Signed-off-by: of the co-author(s).  All Co-developed-by:/Signed-off-by: pairs
> +must precede the Signed-off-by: of the original author.
> +
> +	Co-developed-by: Random Co-Author <random@coauthor.example.org>
> +	Signed-off-by: Random Co-Author <random@coauthor.example.org>
> +	Signed-off-by: Original Author <original@author.example.org>

Seems to me this suggests Original Author is involved in the patch from
start to finish, and then gives Random Co-Author credit as well.

IME it's more common for the Original Author to write a patch, and
Random Co-Author to take over, finishing the job. Chronologically in
this case I'd put the sign-offs the other way round.

BR,
Jani.

>  
>  
>  13) Using Reported-by:, Tested-by:, Reviewed-by:, Suggested-by: and Fixes:

-- 
Jani Nikula, Intel Open Source Graphics Center