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[23.128.96.32]) by mx.google.com with ESMTPS id s4-20020a170902ea0400b001bc1b018950si2488171plg.442.2023.10.20.13.08.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 13:08:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) client-ip=23.128.96.32; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=RJ+PgX3b; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by agentk.vger.email (Postfix) with ESMTP id CA10F82D9826; Fri, 20 Oct 2023 13:08:01 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at agentk.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230043AbjJTUH5 (ORCPT + 99 others); Fri, 20 Oct 2023 16:07:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230106AbjJTUH4 (ORCPT ); Fri, 20 Oct 2023 16:07:56 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CEA13D52 for ; Fri, 20 Oct 2023 13:07:54 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DC166C433C7; Fri, 20 Oct 2023 20:07:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1697832474; bh=6p/iT1gidGXAi7ufrWiP8Qwl+JI67lYMgyF7ejAlI68=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RJ+PgX3btaN69zQBT+FRSPGeztNkf4ZBj1oGHks16wvipw2YqJGnZv7DuAQgrV052 3aFqvGZB44LQbKYIPvadWJW9fA5yFiG9CpnRy1vR9QiGqsvo6ShdXlUhyNDK7AEuYw 6T5l0k4QYczx6VUHUtv7SzD8rg1pOOYZudyhJaNE= Date: Fri, 20 Oct 2023 22:07:51 +0200 From: Greg Kroah-Hartman To: Jonathan Corbet Cc: Jason Gunthorpe , Saeed Mahameed , Arnd Bergmann , linux-kernel@vger.kernel.org, Leon Romanovsky , Jiri Pirko , Saeed Mahameed Subject: Re: Dual licensing [was: [PATCH 2/5] misc: mlx5ctl: Add mlx5ctl misc driver] Message-ID: <2023102043-sauciness-encrypt-48c3@gregkh> References: <20231018081941.475277-1-saeed@kernel.org> <20231018081941.475277-3-saeed@kernel.org> <2023101835-trapdoor-unicycle-788a@gregkh> <20231018180128.GA719006@nvidia.com> <2023101808-quicksand-roman-0da7@gregkh> <20231018185629.GD3952@nvidia.com> <2023101913-owl-showman-5858@gregkh> <87r0lq8eop.fsf@meer.lwn.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87r0lq8eop.fsf@meer.lwn.net> X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Fri, 20 Oct 2023 13:08:01 -0700 (PDT) On Thu, Oct 19, 2023 at 03:50:30PM -0600, Jonathan Corbet wrote: > Greg Kroah-Hartman writes: > > > For your new files, please make them single license. If you insist on > > dual licensing them, I will insist on have a lawyer sign off on them so > > that they understand the issues involved with dual licenses, and just > > how much I hate them in the kernel tree as they are a pain over time. > > Out of curiosity, is there somewhere people can look for a description > of these issues and the pain they cause? I've seen this go by enough > times to think that it would be good to set down in Documentation/ > somewhere for future reference. I don't have a description anywhere, sorry, this was just discussions with many open source lawyers who focus on the kernel over the years. I'll work to try to get something "solid" from them that I can put into writing, but it will probably take quite a while... thanks, greg k-h