linux-kernel - Re: [PATCH v3] checkpatch: add new warnings to author signoff checks.

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Message-ID: <CABJPP5DDmurU9c2qCoJcg7hvwnkYo4LCx+TW6xKG2G23Uf_Cxw@mail.gmail.com>
Date:   Tue, 6 Oct 2020 01:37:22 +0530
From:   Dwaipayan Ray <dwaipayanray1@...il.com>
To:     Joe Perches <joe@...ches.com>
Cc:     linux-kernel-mentees@...ts.linuxfoundation.org,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] checkpatch: add new warnings to author signoff checks.

On Tue, Oct 6, 2020 at 1:07 AM Joe Perches <joe@...ches.com> wrote:
>
> On Tue, 2020-10-06 at 00:54 +0530, Dwaipayan Ray wrote:
> > The author signed-off-by checks are currently very vague.
> > Cases like same name or same address are not handled separately.
>
> When you run tests for this, how many mismatches are
> caused by name formatting changes like:
>
> From: "Developer, J. Random" <jrd@...corp.com>
> ...
> Signed-off-by: "J. Random Developer" <jrd@...corp.com>?
>
> Should these differences generate a warning?
>

Hi,
I ran my tests on non merge commits between v5.7 and v5.8.

There were a total of 250 NO_AUTHOR_SIGN_OFF Warnings

203 of these were email address mismatches.
32 of these were name mismatches.

So for the name mismatches, the typical cases are like:

'From: tannerlove <tannerlove@...gle.com>' != 'Signed-off-by: Tanner
Love <tannerlove@...gle.com>'
'From: "朱灿灿" <zhucancan@...o.com>' != 'Signed-off-by: zhucancan
<zhucancan@...o.com>'
'From: Yuval Basson <ybason@...vell.com>' != 'Signed-off-by: Yuval
Bason <ybason@...vell.com>'
'From: allen <allen.chen@....com.tw>' != 'Signed-off-by: Allen Chen
<allen.chen@....com.tw>'

I didn't find the exact formatting change you mentioned in my commit range.
But I did find something like:

'From: "Paul A. Clarke" <pc@...ibm.com>' != 'Signed-off-by: Paul
Clarke <pc@...ibm.com>'

So it's like some have parts of their names removed, some have language
conflicts, and yet some have well different spellings, or initials,
etc. It's like
a wide variety of things happening here.

I think considering these, it should be warned about, and let people know
that there might be something wrong going on.

What do you think?

Thanks,
Dwaipayan.