linux-kernel - Re: [PATCH v20 05/12] LSM: Infrastructure management of the superblock

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Date:   Thu, 13 Aug 2020 14:39:12 -0400
From:   Stephen Smalley <stephen.smalley.work@...il.com>
To:     Mickaël Salaün <mic@...ikod.net>
Cc:     Stephen Smalley <sds@...ho.nsa.gov>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Kees Cook <keescook@...omium.org>,
        John Johansen <john.johansen@...onical.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Andy Lutomirski <luto@...capital.net>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Arnd Bergmann <arnd@...db.de>,
        James Morris <jmorris@...ei.org>, Jann Horn <jannh@...gle.com>,
        Jeff Dike <jdike@...toit.com>,
        Jonathan Corbet <corbet@....net>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Richard Weinberger <richard@....at>,
        "Serge E . Hallyn" <serge@...lyn.com>,
        Shuah Khan <shuah@...nel.org>,
        Vincent Dagonneau <vincent.dagonneau@....gouv.fr>,
        kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-doc@...r.kernel.org,
        Linux FS Devel <linux-fsdevel@...r.kernel.org>,
        linux-kselftest@...r.kernel.org,
        LSM List <linux-security-module@...r.kernel.org>,
        x86@...nel.org
Subject: Re: [PATCH v20 05/12] LSM: Infrastructure management of the superblock

On Thu, Aug 13, 2020 at 10:17 AM Mickaël Salaün <mic@...ikod.net> wrote:
>
>
> On 12/08/2020 21:16, Stephen Smalley wrote:
> > On 8/2/20 5:58 PM, Mickaël Salaün wrote:
> >> From: Casey Schaufler <casey@...aufler-ca.com>
> >>
> >> Move management of the superblock->sb_security blob out
> >> of the individual security modules and into the security
> >> infrastructure. Instead of allocating the blobs from within
> >> the modules the modules tell the infrastructure how much
> >> space is required, and the space is allocated there.
> >>
> >> Signed-off-by: Casey Schaufler <casey@...aufler-ca.com>
> >> Reviewed-by: Kees Cook <keescook@...omium.org>
> >> Reviewed-by: John Johansen <john.johansen@...onical.com>
> >> Reviewed-by: Stephen Smalley <sds@...ho.nsa.gov>
> >> Reviewed-by: Mickaël Salaün <mic@...ikod.net>
> >> Link:
> >> https://lore.kernel.org/r/20190829232935.7099-2-casey@schaufler-ca.com
> >> ---
> >>
> >> Changes since v17:
> >> * Rebase the original LSM stacking patch from v5.3 to v5.7: I fixed some
> >>    diff conflicts caused by code moves and function renames in
> >>    selinux/include/objsec.h and selinux/hooks.c .  I checked that it
> >>    builds but I didn't test the changes for SELinux nor SMACK.
> >
> > You shouldn't retain Signed-off-by and Reviewed-by lines from an earlier
> > patch if you made non-trivial changes to it (even more so if you didn't
> > test them).
>
> I think I made trivial changes according to the original patch. But
> without reply from other people with Signed-off-by or Reviewed-by
> (Casey, Kees, John), I'll remove them. I guess you don't want your
> Reviewed-by to be kept, so I'll remove it, except if you want to review
> this patch (or the modified part).

At the very least your Reviewed-by line is wrong - yours should be
Signed-off-by because the patch went through you and you modified it.
I'll try to take a look as time permits but FYI you should this
address (already updated in MAINTAINERS) going forward.