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[217.103.152.109]) by smtp.gmail.com with ESMTPSA id n5sm1783116edt.65.2019.06.03.03.46.45 (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Mon, 03 Jun 2019 03:46:45 -0700 (PDT) Subject: Re: [Batch 16 patch 01/25] treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 226 To: "Enrico Weigelt, metux IT consult" , Thomas Gleixner , linux-spdx@vger.kernel.org References: <20190602204441.312079455@linutronix.de> <20190602204653.087533673@linutronix.de> <1a0494fe-8925-39e0-c57d-7f19fdda98e6@metux.net> From: Armijn Hemel - Tjaldur Software Governance Solutions Openpgp: preference=signencrypt Autocrypt: addr=armijn@tjaldur.nl; prefer-encrypt=mutual; keydata= xsBNBFUHGDMBCACvTqCg+gpeT0siXY414eCO6guTvQm1CObf6gzhsa4IRhzG5ZrT+hSjluIF gnAFoOZxYXZVWoq+SCbBfWSLuVZnFb4jrBoNbNqyd9xPKT92UQoI9aib90Klq6tt0VcvO6Ke 10duM69mhBao6McGPHqOl6sBGjgfKzwQKEYa/W2sXgSiZgyAniAm8dcgCNMWeU8i6AFw/tu2 CDSIlGJD/ScTJ63sxvFCLU/yauhqcHj/uHVISFEVU/TR0aruhU59WJcTh7M6YXm9T/KwP/dv bFtXxS2XfWDXNLq1Fin90E0Kh924GQBwn85yt65EyzsiqMCQbIQCOu1HcqMUV7MBgYJ/ABEB AAHNIEFybWlqbiBIZW1lbCA8YXJtaWpuQHRqYWxkdXIubmw+wsB4BBMBAgAiBQJVBxgzAhsD BgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAKCRCoU7oX+9OE+8ixCACQPJzd/FC/+Ab1RY8R T1BTUef0t31cGNkoEvmE5+oyqf2xDEdDb9dG6D0qOvu8kxMG7i/lNmWaBdSwbWLv+JRBcEHa Em3d3ck/ln3ulWIHLX1FFINlPh+dZqNZYnBxFMJ8sNR8tM3DOS0q/3GTAnQVK8M6arl8yoFP diwgg0ApHeJnPD75UJHHCly31D2HyMw2xgVxmW/s1gT9gwYx1AN5W9VYgUD9cJhPzPJH2Y9+ JkcSDFB57OOb+2WVCT85Rnaha/FPXkJkgfwuurutHEJDujAAYPPcIKiqWaOarJ1bI2a81Rzh wiD3wfjfcbq9MTkynq2APGjf0OqV3ymZf7rdzsBNBFUHGDMBCACq+VkgujBe13OQq0duCuwe cpgcFV4H5AU1TE9QyYh8m4FGFSiQzMRbDK/jqxA6wzNHoazxcRPBC7Wt5QcDeIeVvErJAtiP JmqWGHsiN6PMDoi+jO4q9iiqU7FcMNiTxGlPMbVHApWqX9+X1Liuf+j371YxZNxGh/5sLpRK iULNGj4tfOYqvbgTKYuPTHPPF1AVVQQdC5Bl3RmxhpDiZw5QAeLDHbXAh8KBO3be8QoDVzMp lUXgSvtwAKhO/mbfM1AyiMY3ilONYFKMmRRviVeyaTRDWJuMuAESsBHAcM04EzQFZTC9/yYI QEuymc+ZRr78WtS9eRrbd6Dtbfk5FVhRABEBAAHCwF8EGAECAAkFAlUHGDMCGwwACgkQqFO6 F/vThPtk7gf+Nvi8DZOOl/qGa86B20NO3jQ0pyi4nGtIeey46v9dwTmRqFIKDAnKLyV8Z7+2 ND0Xd8gPxrEnHRrdGB6hsQpQ/l4a2htk7CW/qGB3TkzTwBU2gS4mZEXSzUtv05CLHgmr+xkV s5Cy33RttqFm5TqAZUhhUbl5c4EgRpb/a60KZlYUBilsKzHCHAP6qGKZ8p7hnvL2oGDs71Gx uWIYynzE8Tl40P7UHtcVaTC1x61e8cOzaWMSSnrtQKAr6QsSf/w97EEG48jePV0tLkaGhaJk 1mRmS3/svWX51OjvCJjSHNAoq9W+i2UDZ06YLnET8DMug8BESHi5ww8ldBybQkzkvw== Message-ID: Date: Mon, 3 Jun 2019 12:46:44 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <1a0494fe-8925-39e0-c57d-7f19fdda98e6@metux.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-US Sender: linux-spdx-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spdx@vger.kernel.org Archived-At: List-Archive: List-Post: On 6/3/19 12:11 PM, Enrico Weigelt, metux IT consult wrote: > By the way: does it still make sense to keep all the "copyright(c) ..."= > lines, or would should that information always be retrieved from git ? > (for that particular file, git blame doesn't show anybody who seems to > be from broadcom) Yes, I think they would be. That being said, copyright notices in the Linux kernel are horribly out of date/inaccurate and even Git does not do a good job of recording these (garbage in, garbage out). Git only has a single "Author" field and I know of commits where the commit message had two authors listed and the that was added had three authors listed. Then there are all kinds of silly tags in the Linux kernel where it is absolutely unclear whether or not someone is claiming copyright or not. See for examples this article: https://www.ifosslr.org/index.php/ifosslr/article/view/121 Also, author doesn't necessarily mean copyright owner, company affiliation also does not necessarily mean copyright is with the company (it depends on the work contract) and it would require a lot more research to find the true copyright owner. The copyright statements also have other relevant information, such as years. This is relevant to find out which copyright laws were in effect when the code was published. > Or should we introduce an SPDX header for that ? There was a discussion about this a few days ago (please see the list archive). Personally I don't see the benefit. armijn --=20 Armijn Hemel, MSc Tjaldur Software Governance Solutions