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

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Message-ID: <20150504153724.GA26392@nest>
Date:	Mon, 4 May 2015 18:37:24 +0300
From:	Andrey Skvortsov <andrej.skvortzov@...il.com>
To:	maximilian attems <max@...o.at>
Cc:	Michal Marek <mmarek@...e.cz>, 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 22 Apr, maximilian attems wrote:
> 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>
> 
Maximilian, thanks for the review.

Michal, are we waiting for Ben's acknowledge too?

-- 
Best regards,
Andrey Skvortsov

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