Re: [PATCH v6 00/16] Infrastructure to allow fixing exec deadlocks

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On 4/2/20 9:40 AM, Kees Cook wrote:
> On Mon, Mar 30, 2020 at 01:14:59PM -0700, Matthew Wilcox wrote:
>> On Mon, Mar 30, 2020 at 10:12:02PM +0200, Bernd Edlinger wrote:
>>> On 3/29/20 5:44 AM, Kees Cook wrote:
>>>> On Sat, Mar 28, 2020 at 11:32:35PM +0100, Bernd Edlinger wrote:
>>>>> Oh, do I understand you right, that I can add a From: in the
>>>>> *body* of the mail, and then the From: in the MIME header part
>>>>> which I cannot change is ignored, so I can make you the author?
>>>>
>>>> Correct. (If you use "git send-email" it'll do this automatically.)
>>>>
>>>> e.g., trimmed from my workflow:
>>>>
>>>> git format-patch -n --to "$to" --cover-letter -o outgoing/ \
>>>> 	--subject-prefix "PATCH v$version" "$SHA"
>>>> edit outgoing/0000-*
>>>> git send-email --transfer-encoding=8bit --8bit-encoding=UTF-8 \
>>>> 	--from="$ME" --to="$to" --cc="$ME" --cc="...more..." outgoing/*
>>>>
>>>>
>>>
>>> Okay, thanks, I see that is very helpful information for me, and in
>>> this case I had also fixed a small bug in one of Eric's patches, which
>>> was initially overlooked (aquiring mutexes in wrong order,
>>> releasing an unlocked mutex in some error paths).
>>> I am completely unexperienced, and something that complex was not
>>> expected to happen :-) so this is just to make sure I can handle it
>>> correctly if something like this happens again.
>>>
>>> In the case of PATCH v6 05/16 I removed the Reviewd-by: Bernd Edlinger
>>> since it is now somehow two authors and reviewing own code is obviously
>>> not ok, instead I added a Signed-off-by: Bernd Edlinger (and posted the
>>> whole series on Eric's behalf (after asking Eric's permissing per off-list
>>> e-mail, which probably ended in his spam folder)
>>>
>>> Is this having two Signed-off-by: for mutliple authors the
>>> correct way to handle a shared authorship?
>>
>> If the patch comes through you, then Reviewed-by: is inappropriate.
>> Instead, you should use Signed-off-by: in the second sense of
>> Documentation/process/submitting-patches.rst
>>
>> This also documents how to handle "minor changes" that you make.
> 
> And in the true case of multiple authors, have both SoBs, but also add a
> Co-developed-by: for the non-"git author" author. Specific details:
> https://www.kernel.org/doc/html/latest/process/submitting-patches.html#when-to-use-acked-by-cc-and-co-developed-by
> 

Thanks a lot, much appreciated information indeed.

I personally like to play together :-)


Bernd.



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