From: Petr Vandrovec <petr@vandrovec.name>
To: Valdis.Kletnieks@vt.edu
Cc: Alexey Dobriyan <adobriyan@gmail.com>,
mingo@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Add note that lockdep is not allowed with non-GPL modules
Date: Wed, 05 Jul 2006 04:54:11 +0200 [thread overview]
Message-ID: <44AB29D3.9090106@vandrovec.name> (raw)
In-Reply-To: <200607050247.k652lkaD006629@turing-police.cc.vt.edu>
Valdis.Kletnieks@vt.edu wrote:
> On Tue, 04 Jul 2006 23:20:53 +0200, Petr Vandrovec said:
>
>>>Lock validor found a bug in NVidia driver, film at 11.
>
>
> It almost certainly didn't, as you have to do some major ugly and evil
> things to get the NVidia driver to build (it won't pass modpost if the
> kernel is built with lockdep due to the GPL-only exports that get sucked in).
>
>
>>I have no idea how NVidia managed to work around that problem, but
>>VMware modules suddenly depend on this GPL-only symbol, although nothing
>>in the module sources refers to lockdep (same sources which worked
>>yesterday are being used).
>
> It doesn't reference it directly - it gets sucked in via a #define.
VMware code is shoot down due to use of init_waitqueue_head(). It is
now virtually GPL-only because it is inlined and uses GPL-only function
lockdep_init_map :-(
Petr
prev parent reply other threads:[~2006-07-05 2:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-04 20:29 [PATCH] Add note that lockdep is not allowed with non-GPL modules Petr Vandrovec
2006-07-04 20:53 ` Alexey Dobriyan
2006-07-04 21:20 ` Petr Vandrovec
2006-07-05 2:47 ` Valdis.Kletnieks
2006-07-05 2:54 ` Petr Vandrovec [this message]
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