On Tue, Sep 26, 2023 at 03:52:48PM +0000, Salil Mehta wrote:
> > From: Michael S. Tsirkin <m...@redhat.com>
> > Sent: Tuesday, September 26, 2023 1:07 PM
> > To: Salil Mehta <salil.me...@huawei.com>
> > Cc: xianglai li <lixiang...@loongson.cn>; qemu-devel@nongnu.org; Bernhard
> > Beschow <shen...@gmail.com>; Salil Mehta <salil.me...@opnsrc.net>; Xiaojuan
> > Yang <yangxiaoj...@loongson.cn>; Song Gao <gaos...@loongson.cn>; Igor
> > Mammedov <imamm...@redhat.com>; Ani Sinha <anisi...@redhat.com>; Paolo
> > Bonzini <pbonz...@redhat.com>; Richard Henderson
> > <richard.hender...@linaro.org>; Eduardo Habkost <edua...@habkost.net>;
> > Marcel Apfelbaum <marcel.apfelb...@gmail.com>; Philippe Mathieu-Daudé
> > <phi...@linaro.org>; wangyanan (Y) <wangyana...@huawei.com>; Daniel P.
> > Berrangé <berra...@redhat.com>; Peter Xu <pet...@redhat.com>; David
> > Hildenbrand <da...@redhat.com>; Bibo Mao <maob...@loongson.cn>
> > Subject: Re: [PATCH v3 2/7] Update CPUs AML with cpu-(ctrl)dev change
> > 
> > On Tue, Sep 26, 2023 at 12:03:46PM +0000, Salil Mehta wrote:
> > > Sure, ARM patch-set follows exactly above rules.
> > >
> > 
> > 
> > Almost.
> > 
> >     Co-developed-by: Salil Mehta <salil.me...@huawei.com>
> >     Signed-off-by: Salil Mehta <salil.me...@huawei.com>
> >     Co-developed-by: Keqian Zhu <zhukeqi...@huawei.com>
> >     Signed-off-by: Keqian Zhu <zhukeqi...@huawei.com>
> >     Signed-off-by: Salil Mehta <salil.me...@huawei.com>
> > 
> > You should drop your own Co-developed-by as well as multiple Signed-off-by.
> 
> 
> https://docs.kernel.org/process/submitting-patches.html#when-to-use-acked-by-cc-and-co-developed-by
> 
> Reference: Co-developed-by: Pasting excerpt from above link:
> 
> "1. Standard sign-off procedure applies, i.e. the ordering of
>    Signed-off-by: tags should reflect the chronological history
>    of the patch insofar as possible, regardless of whether the
>   author is attributed via From: or Co-developed-by:.
> 2.Notably, the last Signed-off-by: must always be that of the
>   developer submitting the patch."
> 
> To be able to achieve 1. I have to put Co-developed-by: of
> mine at the top as I am the main author of the patch-set
> historically and have been continually driving the work.
> (It is a common rule even within the kernel to keep first
>  SOB that of the main author)

yes that is fine.

> Reference: Signed-off-by: Excerpt from above link:
> 
> " Any further SoBs (Signed-off-by:'s) following the author's
>  SoB are from people handling and transporting the patch, but
>  were not involved in its development. SoB chains should
>  reflect the real route a patch took as it was propagated to
>  the maintainers and ultimately to Linus, with the first SoB
>  entry signalling primary authorship of a single author."
> 
> 
> And since I am the person who is submitting the patches
> (which might or not be the same in future) I need to put
> my SOB in any case to be able to achieve 2.
> 
> This is to ensure primary author remains the first SOD/CDY.
> 
> 
> Thanks
> Salil.

I think you misunderstand what it says -
you don't need to repeat signatures many times.
you took the patches that were signed off by people A,B,C
and sent to me. Thus you do:

S.o.b: A
S.o.b: B
S.o.b: C
S.o.b: Salil Mehta

and I add:
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
and send to Linus.

-- 
MST`


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