Date: Sun, 15 Jun 2003 18:10:20 +0100
From: Christoph Hellwig <hch@infradead.org>
To: David Brownell <david-b@pacbell.net>
Cc: Christoph Hellwig <hch@infradead.org>, torvalds@transmeta.com,
       mochel@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: GFDL in the kernel tree
Message-ID: <20030615181020.A19242@infradead.org>
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	David Brownell <david-b@pacbell.net>, torvalds@transmeta.com,
	mochel@osdl.org, linux-kernel@vger.kernel.org
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In-Reply-To: <3EEC9946.9090308@pacbell.net>; from david-b@pacbell.net on Sun, Jun 15, 2003 at 09:05:26AM -0700
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On Sun, Jun 15, 2003 at 09:05:26AM -0700, David Brownell wrote:
> Christoph Hellwig wrote:
> > 2.5.71 introduces two GFDL-licensed files in the kernel tree...
> 
> A "grep" in Documentation/DocBook shows me three GFDL files,
> last time I grepped there were none.  So I was aware that
> adding one would likely raise some issues ... evidently
> a variety of people have noticed that GPL for docs/specs
> isn't the best solution.

My preferred license for documentation is 2clause BSD because
some of the GPL legalese is strange for docs at least..

But GFDL really is a horrible license.

> But there's a potential issue for kerneldoc for one particular
> structure, "usb_ctrlrequest", which was merged into 2.5 from a
> patch on 2/2/2002 ... I think I know who contributed that patch.
> If that author isn't willing to let that text be covered by
> GFDL, and for some reason I can't replace it with similar text
> that is (mostly pointing to the USB spec for details), I'll pull
> that bit out.  In short:  This particular issue is fixable.

Well, it is fixable but it's the best example of why am incompatible
documentation license is evil.

> Only when those sections are used.  Which none of those three
> files do; all that doc is Free (GPL-compatible) by Debian terms.
> (Modulo minor issues to be worked.)

debian-legacl had more issue, may they be minor or not.  The
biggest problem with the GFDL in the free software context is
it's GPL incompatiblity.

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