linux-kernel - Re: [PATCH] builddeb: fix stripped module signatures if CONFIG_DEBUG_INFO and CONFIG_MODULE_SIG

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Message-ID: <20150422155700.GD32026@gluino>
Date:	Wed, 22 Apr 2015 17:57:00 +0200
From:	maximilian attems <max@...o.at>
To:	Michal Marek <mmarek@...e.cz>
Cc:	Andrey Skvortsov <andrej.skvortzov@...il.com>,
	Ben Hutchings <ben@...adent.org.uk>,
	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] builddeb: fix stripped module signatures if
 CONFIG_DEBUG_INFO and CONFIG_MODULE_SIG_ALL are set

On Tue, Apr 21, 2015 at 03:58:48PM +0200, Michal Marek wrote:
> (added Max to Cc)
> 
> On 2015-03-16 09:20, Andrey Skvortsov wrote:
> > If CONFIG_MODULE_SIG_ALL is set, then user expects that all modules are
> > automatically signed in the result package, as it's for rpm-pkg, binrpm-pkg,
> > tar, tar-*. For deb-pkg this is correct only if CONFIG_DEBUG_INFO
> > is NOT set. In that case deb-package contains signed modules.
> > 
> > But if CONFIG_DEBUG_INFO is set, builddeb creates separate package with
> > debug information. To do that, debug information from all modules
> > is copied into separate files by objcopy. And loadable kernel modules are
> > stripped afterwards. Stripping removes previously (during modules_install)
> > added signatures from loadable kernel modules. Therefore final deb-package
> > contains unsigned modules despite of set option CONFIG_MODULE_SIG_ALL.
> > 
> > This patch resigns all stripped modules if CONFIG_MODULE_SIG_ALL is set
> > to solve this problem.
> > 
> > Signed-off-by: Andrey Skvortsov <andrej.skvortzov@...il.com>
> 
> Max, Ben, are you fine with this patch? It looks OK to me, the
> modules_sign target has been added for this very purpose.
> 

Ben seems busy with the release, so jumping in. The patch looks
perfect to me.

Acked-by: maximilian attems <max@...o.at>

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