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Tsirkin" To: Daniel =?iso-8859-1?Q?P=2E_Berrang=E9?= Cc: qemu-devel@nongnu.org, Richard Henderson , Alexander Graf , Alex =?iso-8859-1?Q?Benn=E9e?= , Paolo Bonzini , Markus Armbruster , Phil =?iso-8859-1?Q?Mathieu-Daud=E9?= , Stefan Hajnoczi , Thomas Huth , Kevin Wolf , Gerd Hoffmann , Mark Cave-Ayland , Peter Maydell Subject: Re: [PATCH 2/2] docs: define policy forbidding use of "AI" / LLM code generators Message-ID: <20231124041343-mutt-send-email-mst@kernel.org> References: <20231123114026.3589272-1-berrange@redhat.com> <20231123114026.3589272-3-berrange@redhat.com> <20231123092523-mutt-send-email-mst@kernel.org> <20231123172828-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Received-SPF: pass client-ip=170.10.129.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.058, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Fri, Nov 24, 2023 at 09:06:29AM +0000, Daniel P. Berrangé wrote: > On Thu, Nov 23, 2023 at 05:39:18PM -0500, Michael S. Tsirkin wrote: > > On Thu, Nov 23, 2023 at 05:58:45PM +0000, Daniel P. Berrangé wrote: > > > The license of a code generation tool itself is usually considered > > > to be not a factor in the license of its output. > > > > Really? I would find it very surprising if a code generation tool that > > is not a language model and so is not understanding the code it's > > generating did not include some code snippets going into the output. > > It is also possible to unintentionally run afoul of GPL's definition of source > > code which is "the preferred form of the work for making modifications to it". > > So even if you have copyright to input, dumping just output and putting > > GPL on it might or might not be ok. > > Consider the C pre-processor. This takes an input .c file, and expands > all the macros, to split out a new .c file. > > The license of the output .c file is determined by the license of the > input .c file. The license of the CPP impl (whether OSS or proprietary) > doesn't have any influence on the license of the output file, it cannot > magically force the output file to be proprietary any more than it can > force it to be output file GPL. > > With regards, > Daniel Sorry I don't get how is C preprocessor relevant here? It does not generate source code in the GPL sense. We won't accept C preprocessor output in a patch. Not being a lawyer I personally am not really interested in discussing how copyright works, certainly not at this highly abstract and simplified level. -- MST