From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 996A5C4727D for ; Mon, 5 Oct 2020 18:50:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 57EB720853 for ; Mon, 5 Oct 2020 18:50:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728361AbgJESuu (ORCPT ); Mon, 5 Oct 2020 14:50:50 -0400 Received: from mga12.intel.com ([192.55.52.136]:54263 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725940AbgJESuu (ORCPT ); Mon, 5 Oct 2020 14:50:50 -0400 IronPort-SDR: YtXlup6AUCPerwkhyxG4cymlxvliLGrAseZeK4v4AzRs8fz/03TIchAMQVO0iuQAMvJLciPcmH lRktrx9QzWBw== X-IronPort-AV: E=McAfee;i="6000,8403,9765"; a="143233929" X-IronPort-AV: E=Sophos;i="5.77,340,1596524400"; d="scan'208";a="143233929" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Oct 2020 11:50:36 -0700 IronPort-SDR: +/oWGfitr/jZ8ByKRG2yjKUyjG99pFmufZCAjV2r+aoAp5Vp0JfGuei+/4Dq37oVAprdHmvURn UAtkoFIHPI4w== X-IronPort-AV: E=Sophos;i="5.77,340,1596524400"; d="scan'208";a="352711012" Received: from tlcook-mobl1.amr.corp.intel.com (HELO [10.209.96.133]) ([10.209.96.133]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Oct 2020 09:41:06 -0700 Subject: Re: [PATCH v39 11/24] x86/sgx: Add SGX enclave driver To: Greg KH , Jarkko Sakkinen Cc: Christoph Hellwig , x86@kernel.org, linux-sgx@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Matthew Wilcox , Jethro Beekman , Haitao Huang , Chunyang Hui , Jordan Hand , Nathaniel McCallum , Seth Moore , Darren Kenny , Sean Christopherson , Suresh Siddha , andriy.shevchenko@linux.intel.com, asapek@google.com, bp@alien8.de, cedric.xing@intel.com, chenalexchen@google.com, conradparker@google.com, cyhanish@google.com, haitao.huang@intel.com, kai.huang@intel.com, kai.svahn@intel.com, kmoy@google.com, ludloff@google.com, luto@kernel.org, nhorman@redhat.com, puiterwijk@redhat.com, rientjes@google.com, tglx@linutronix.de, yaozhangx@google.com, mikko.ylinen@intel.com References: <20201003045059.665934-1-jarkko.sakkinen@linux.intel.com> <20201003045059.665934-12-jarkko.sakkinen@linux.intel.com> <20201003143925.GB800720@kroah.com> <20201005084554.GA3403@infradead.org> <20201005114250.GB181338@linux.intel.com> <20201005115030.GA682263@kroah.com> <20201005142345.GA6232@linux.intel.com> <20201005150244.GA2288878@kroah.com> From: Dave Hansen Autocrypt: addr=dave.hansen@intel.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201005150244.GA2288878@kroah.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org On 10/5/20 8:02 AM, Greg KH wrote: > On Mon, Oct 05, 2020 at 05:23:45PM +0300, Jarkko Sakkinen wrote: >> [*] One thing I've been wondering for a long time is that, why new code >> should have the copyright platters in the first place? I get it for >> pre-Git era but now there is a cryptographic log of authority. > Go talk to your corporate lawyers about this, it is one of the most > common cargo-cult patterns around :) For this patch, though, it seems like we should just update the dates instead of removing them. If I look at the last 1000 "^+.*Copyright" lines added to the kernel, 997 of them have a year. So, weird or not, it's a pretty standard convention. We'd need a slightly more broad conversation before we decide to nix these dates. Pure speculation: Copyright protection, at least in the US, is not forever. I _think_ it's 75 years or something. That protection starts when the work is created and is independent of when it gets merged into Linux. So, if we did something weird like merge a driver written 10 years ago, it would only be protected for 65 more years after we merge it. In other words, git history _might_ be irrelevant for copyright protection.