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Date:   Thu, 3 Dec 2020 19:57:13 +0100
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc:     Aditya <yashsri421@gmail.com>, Joe Perches <joe@perches.com>,
        linux-kernel-mentees@lists.linuxfoundation.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [Linux-kernel-mentees] [PATCH -mmots] checkpatch: add fix for
 non-standard signature - co-authored-by
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On Thu, Dec 03, 2020 at 11:59:54AM +0100, Lukas Bulwahn wrote:
> On Thu, Dec 3, 2020 at 10:59 AM Aditya <yashsri421@gmail.com> wrote:
> >
> > On 3/12/20 12:26 am, Joe Perches wrote:
> > > On Thu, 2020-12-03 at 00:00 +0530, Aditya Srivastava wrote:
> > >> Currently, checkpatch.pl warns us for BAD_SIGN_OFF on the usage of
> > >> non-standard signatures.
> > >>
> > >> An evaluation on v4.13..v5.8 showed that out of 539 warnings due to
> > >> non-standard signatures, 43 are due to the use of 'Co-authored-by'
> > >> tag, which may seem correct, but is not standard.
> > >>
> > >> The standard signature equivalent for 'Co-authored-by' is
> > >> 'Co-developed-by'.
> > >
> > > I'm not going to ack this as I don't mind non-standard signatures.
> > >
> >
> > What do you suggest?
> > Should I drop this patch and move on?
> >
> 
> Joe does not ack this, but he also does not nack it.
> 
> You either move on (which is perfectly fine), or
> 
> you either wait that Andrew Morton reviews it and accepts it because
> he thinks it useful, or
> 
> you reach out to the git committers that have been using
> Co-authored-by in the past and ask them if this kind of feature would
> have been helpful for them and you get an ack from them that convinces
> Andrew Morton to pick this.

co-developed-by is the correct tag for this.  It is documented exactly
for this reason, please do not try to use something that is not already
accepted by the kernel developers for this type of thing.

thanks,

greg k-h