linux-kernel - Re: [PATCH v2] bootconfig: Only load bootconfig if "config=bootconfig" is on the kernel cmdline (was: bootconfig: Add "disable_bootconfig" cmdline option to disable bootconfig)

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Message-ID: <20200204093302.593cb82e@oasis.local.home>
Date:   Tue, 4 Feb 2020 09:33:02 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Tom Zanussi <zanussi@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v2] bootconfig: Only load bootconfig if
 "config=bootconfig" is on the kernel cmdline (was: bootconfig: Add
 "disable_bootconfig" cmdline option to  disable bootconfig)

On Tue, 4 Feb 2020 09:25:28 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:

> As bootconfig is silently added (if the admin does not know where to look
> they may not know it's being loaded). It should be explicitly added to the
> kernel cmdline. The loading of the bootconfig is only done if
> "config=bootconfig" is on the kernel command line. This will let admins know
> that the kernel command line is extended.

I wonder if we need the "config=" part. Would "bootconfig" be
sufficient, or is it better to keep it for documentation purposes.

-- Steve