linux-kernel - Re: [PATCH v2 01/15] docs/mm: add document for swap table

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Message-ID: <CACePvbXi3Avsic62fMdhLaDfiq4LS_t8-wbm9yQnEkScoxYO-g@mail.gmail.com>
Date: Mon, 8 Sep 2025 08:01:48 -0700
From: Chris Li <chrisl@...nel.org>
To: Baoquan He <bhe@...hat.com>
Cc: Kairui Song <kasong@...cent.com>, linux-mm@...ck.org, 
	Andrew Morton <akpm@...ux-foundation.org>, Matthew Wilcox <willy@...radead.org>, 
	Hugh Dickins <hughd@...gle.com>, Barry Song <baohua@...nel.org>, Nhat Pham <nphamcs@...il.com>, 
	Kemeng Shi <shikemeng@...weicloud.com>, Baolin Wang <baolin.wang@...ux.alibaba.com>, 
	Ying Huang <ying.huang@...ux.alibaba.com>, Johannes Weiner <hannes@...xchg.org>, 
	David Hildenbrand <david@...hat.com>, Yosry Ahmed <yosryahmed@...gle.com>, 
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, Zi Yan <ziy@...dia.com>, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 01/15] docs/mm: add document for swap table

On Mon, Sep 8, 2025 at 5:36 AM Baoquan He <bhe@...hat.com> wrote:
>
> On 09/06/25 at 03:13am, Kairui Song wrote:
> > From: Kairui Song <kasong@...cent.com>
> >
> > From: Chris Li <chrisl@...nel.org>
>
> 'From author <authorkernel.org>' can only be one person, and the co-author
> should be specified by "Co-developed-by:" and "Signed-off-by:"?

That is the artifact of sending another person's patch in a series.
The first "From" is from the email header sender. The second "from" is
the real author of the patch. Just like an IP tunnel packet there is
another inner IP packet wrapped in the outer IP packet.

I think that is all normal and did not violate the kernel rules. When
I include Kairui's patch in my swap allocator series. The same thing
happened there on Kairui's patch. In the end the git will know enough
who is the real author, because those patches are  outputted by git
anyway.

Chris