linux-kernel - Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

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Date:	Thu, 14 Jun 2007 18:20:19 +0100
From:	Paulo Marques <pmarques@...popie.com>
To:	Al Viro <viro@....linux.org.uk>
CC:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Bernd Paysan <bernd.paysan@....de>,
	Krzysztof Halasa <khc@...waw.pl>, linux-kernel@...r.kernel.org
Subject: Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

Al Viro wrote:
> On Thu, Jun 14, 2007 at 01:01:20PM -0400, Dmitry Torokhov wrote:
>>> Multiple authors == need permission from each author with enough
>>> contributions to that file to make the contributions in question
>>> copyrightable.
>>>
>>> And in my case (and case of gregkh, and...) that would be considerably
>>> more than a couple of files.  Really.
>> I would expect that if you contribute to a file that explicitely says
>> "GPL v2 or later" and you do not change that wording then you agree
>> GPL v2 or later for that particular contribution. So for example
>> drivers/net/plip.c could be changed to GPL v3 even though you
>> contributed to it.
> 
> After you exclude such cases it's still more than a couple of files...

FWIW,

$ find -name "*.c" | xargs grep "any later version" | wc -l
3138
$ find -name "*.c" | wc -l
9482

Watching the output of the first grep without "wc -l" shows that, 
although it is not 100% accurate, it is still ok just to get a rough 
estimate.

So yes, ~6300 files are definitely more than a couple ;)

-- 
Paulo Marques - www.grupopie.com

"God is love. Love is blind. Ray Charles is blind. Ray Charles is God."
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