Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758740AbXFOUen (ORCPT ); Fri, 15 Jun 2007 16:34:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757442AbXFOUe1 (ORCPT ); Fri, 15 Jun 2007 16:34:27 -0400 Received: from mx1.redhat.com ([66.187.233.31]:53681 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758392AbXFOUe0 (ORCPT ); Fri, 15 Jun 2007 16:34:26 -0400 To: Linus Torvalds Cc: Michael Gerdau , Daniel Hazelton , Lennart Sorensen , Greg KH , debian developer , "david\@lang.hm" , Tarkan Erimer , linux-kernel@vger.kernel.org, Andrew Morton , mingo@elte.hu Subject: Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3 References: <200706142049.41819.dhazelton@enter.net> <200706150825.15491.mgd@technosis.de> From: Alexandre Oliva Organization: Red Hat OS Tools Group Date: Fri, 15 Jun 2007 17:32:43 -0300 In-Reply-To: (Linus Torvalds's message of "Fri\, 15 Jun 2007 10\:03\:53 -0700 \(PDT\)") Message-ID: User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.990 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4292 Lines: 97 On Jun 15, 2007, Linus Torvalds wrote: > On Fri, 15 Jun 2007, Michael Gerdau wrote: >> >> I find it obvious that the GPL was meant to prevent such to be possible. >> This is what I mean by the "the spirit of the GPL". > Umm. It may well have been meant by *rms*. But your argument fatally falls > down on the fact that rms has had *nothing* to do with the Linux kernel. You're mixing two separate issues: 1- does GPLv3 change the spirit of the GPL? 2- is GPLv3 better than GPLv2 for Linux? The answers may be different, and the reason I got into this debate was to set the record straight on 1. As the discussion evolved (if developing into a flamewar can be characterized as evolving ;-), I realized the motivations for preferring v2 over v3 were not clear to me (and they still appear contradictory to me), so I started investigating that, which is indeed 2., but is not about 3: 3- is Linux going to switch to v3? >> Living in germany I'm also used to the courts valueing the >> intention over the exact wording of a contract (a licence after all >> is a contract). So I _think_ in germany TiVo would have lost a >> lawsuit if they had tried it. > Ehh. The intent that matters is not the intent of the person who > authored the license, but the intent of the person who *chose* the > license. +1 > So clearly, the whole "modify in place" argument is simply *wrong*. When you leave an essential portion of the reasoning out, which you repeatedly did, this conclusion is obvious. But it's also obviously wrong to try to apply this conclusion to the argument that I phrased. > It cannot *possibly* be a valid reading of the GPLv2! When the GPLv2 > talks about "legal permissions to copy, distribute and/or modify" > the software, it does *not* mean that you have to have the ability > to modify it in place! Isn't a restriction on in-place modification a further restriction on the permission to modify granted by the license? A further restriction that is not permitted by the license? Again, this is not about ROM, CD-ROMs and other unmodifiable media. In this case, the distributor is not imposing this restriction, it's not selecting the media with the strict purpose of forbidding modification. It doesn't retain the ability to modify without failing to pass it on. This is the key distiction that you repeatedly dropped. And then, presented it as if it were a separate argument. > rights", but it is "all rights" ONLY AS FAR AS THE GPLv2 itself > is concerned! It's not about any _other_ additional rights you > may have outside the GPLv2! I agree, and I don't think I've ever claimed otherwise. It's rights as far as the software is concerned, and even this might be pushing it a bit too far. That's why the spirit gives the intuition, but the legal terms are precise in turning that into "no further restrictions", as I'd already explained long before you did. But then, again, the license grants the right to modify, and prohibits further restrictions to it, so I claim that saying "you can modify, just not in place, because I won't let you do it" (rather than because it's impossible), that's a further restriction of a freedom granted by the license, which turns into a license violation. Now we can turn into the debate on whether replacing is modifying, and the conclusion is quite possibly that, in legal terms, it isn't. I don't care. I'm not here to debate the legal terms. I'm in this debate to set the record straight on whether GPLv3 changes the spirit of the GPL. > See? Both of Alexandre's arguments about why Tivo did something "against > the license" were actually totally bogus. Actually... What you name as two separate arguments were two parts of *one* of the 3 arguments I've raised so far. -- Alexandre Oliva http://www.lsd.ic.unicamp.br/~oliva/ FSF Latin America Board Member http://www.fsfla.org/ Red Hat Compiler Engineer aoliva@{redhat.com, gcc.gnu.org} Free Software Evangelist oliva@{lsd.ic.unicamp.br, gnu.org} - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/