linux-kernel - Re: [PATCH v4 3/5] docs: admin-guide: document the kernel.modprobe sysctl

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Message-ID: <20200330184812.GA108564@gmail.com>
Date:   Mon, 30 Mar 2020 11:48:12 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Alexei Starovoitov <ast@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jeff Vander Stoep <jeffv@...gle.com>,
        Jessica Yu <jeyu@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Luis Chamberlain <mcgrof@...nel.org>,
        NeilBrown <neilb@...e.com>, Stephen Kitt <steve@....org>
Subject: Re: [PATCH v4 3/5] docs: admin-guide: document the kernel.modprobe
 sysctl

Andrew,

On Wed, Mar 18, 2020 at 04:05:13PM -0700, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@...gle.com>
> 
> Document the kernel.modprobe sysctl in the same place that all the other
> kernel.* sysctls are documented.  Make sure to mention how to use this
> sysctl to completely disable module autoloading, and how this sysctl
> relates to CONFIG_STATIC_USERMODEHELPER.
> 
> Cc: Alexei Starovoitov <ast@...nel.org>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Jeff Vander Stoep <jeffv@...gle.com>
> Cc: Jessica Yu <jeyu@...nel.org>
> Cc: Kees Cook <keescook@...omium.org>
> Cc: Luis Chamberlain <mcgrof@...nel.org>
> Cc: NeilBrown <neilb@...e.com>
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>
> ---
>  Documentation/admin-guide/sysctl/kernel.rst | 25 ++++++++++++++++++++-
>  1 file changed, 24 insertions(+), 1 deletion(-)
> 

I just noticed there's already a patch going into 5.7 through the docs tree
(https://lkml.kernel.org/lkml/20200329172713.206afe79@lwn.net/) that creates the
documentation for this sysctl:

        commit 0317c5371e6a9b71a2e25b47013dd5c62d55d1a6
        Author: Stephen Kitt <steve@....org>
        Date:   Tue Feb 18 13:59:17 2020 +0100

            docs: merge debugging-modules.txt into sysctl/kernel.rst

It looks for -mm, you resolved the conflict by changing my patch to add the
documentation to a different location in the file.  But that's not correct as it
results in this sysctl being documented twice.

Perhaps just drop this patch for now, but keep patches 1-2 and 4-5?  I can
rebase and resend this documentation patch later.

- Eric