linux-kernel - Re: [PATCH] livepatch/module: make TAINT

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Message-ID: <20160824214302.4pogu4lwi2i2cgnn@treble>
Date:   Wed, 24 Aug 2016 16:43:02 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Jessica Yu <jeyu@...hat.com>, Jiri Kosina <jikos@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>
Cc:     Petr Mladek <pmladek@...e.com>, linux-kernel@...r.kernel.org,
        live-patching@...r.kernel.org, Chunyu Hu <chuhu@...hat.com>,
        Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: [PATCH] livepatch/module: make TAINT_LIVEPATCH module-specific

On Wed, Aug 24, 2016 at 04:33:00PM -0500, Josh Poimboeuf wrote:
> There's no reliable way to determine which module tainted the kernel
> with CONFIG_LIVEPATCH.  For example, /sys/module/<klp module>/taint
> doesn't report it.  Neither does the "mod -t" command in the crash tool.
> 
> Make it crystal clear who the guilty party is by converting
> CONFIG_LIVEPATCH to a module taint flag.
> 
> This changes the behavior a bit: now the the flag gets set when the

"the the" -> "the"

> module is loaded, rather than when it's enabled.
> 
> Reviewed-by: Chunyu Hu <chuhu@...hat.com>
> Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>

-- 
Josh