Message-ID: <47C847E8.3070905@nortel.com>
Date: Fri, 29 Feb 2008 11:59:04 -0600
From: "Chris Friesen" <cfriesen@nortel.com>
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To: Linus Torvalds <torvalds@linux-foundation.org>
CC: Pavel Roskin <proski@gnu.org>, linux-kernel <linux-kernel@vger.kernel.org>,
       Jon Masters <jcm@jonmasters.org>, Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [PATCH 2.6.25] module: allow ndiswrapper to use GPL-only symbols
References: <1204236662.3612.6.camel@dv> <alpine.LFD.1.00.0802281525170.5780@woody.linux-foundation.org> <20080229012012.ajlsk4pow8wkkgss@webmail.spamcop.net> <alpine.LFD.1.00.0802290807110.17889@woody.linux-foundation.org> <47C838C5.8030707@nortel.com> <alpine.LFD.1.00.0802290905240.17889@woody.linux-foundation.org>
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Linus Torvalds wrote:
> 
> On Fri, 29 Feb 2008, Chris Friesen wrote:
> 
>>But the GPL only applies to derivative works.  Given that ndiswrapper loads
>>binaries designed for another OS, doesn't that mean that it is unlikely that
>>the binaries would be impacted by the GPL?
> 
> 
> But that's what GPLONLY means.
> 
> What's so hard to understand? The driver may not be a derivative work, but 
> it sure as hell isn't GPL'd. 

I hope this won't dump me into the flamers filter....but here goes:

If the intent of the GPLONLY export is really to keep the symbol from 
being used by non-GPL code then I agree that ndiswrapper shouldn't be 
able to use them.

However, you yourself wrote something stating otherwise: 
(http://groups.google.ca/group/linux.kernel/msg/0066655bb1be1e4c):

'I think we _can_ do things where we give clear hints to people that "we
think this is such an internal Linux thing that you simply cannot use 
this without being considered a derived work".....So I personally don't 
see EXPORT_SYMBOL_GPL() to be a "technical measure", I see it as being 
"documentation".'

Under that interpretation, ndiswrapper should be able to make use of 
GPLONLY symbols because the binary blobs are clearly not derivative works.

Chris
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