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Subject: Re: checkpatch: question about "patch prefix 'b' exists" warning
From:   Joe Perches <joe@perches.com>
To:     Masahiro Yamada <masahiroy@kernel.org>,
        Andy Whitcroft <apw@canonical.com>,
        Dwaipayan Ray <dwaipayanray1@gmail.com>,
        Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc:     Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Date:   Sat, 24 Sep 2022 14:43:32 -0700
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On Sun, 2022-09-25 at 03:03 +0900, Masahiro Yamada wrote:
> (+CC: LKML)
> On Sun, Sep 25, 2022 at 3:00 AM Masahiro Yamada <masahiroy@kernel.org> wrote:
> > When I used scripts/checkpatch.pl to check a patch file
> > generated by 'git format-patch', I observed this warning,
> > 
> >   WARNING: patch prefix 'b' exists, appears to be a -p0 patch
[]
> > Is this intentional behavior?

Yes.