From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ferruh Yigit <ferruh.yigit@intel.com>
Subject: Re: [PATCH] net: update licence for network headers
Date: Fri, 8 Dec 2017 09:29:57 -0800
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References: <20171208102830.2817-1-olivier.matz@6wind.com>
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Cc: Thomas Monjalon <thomas@monjalon.net>
To: Olivier Matz <olivier.matz@6wind.com>, dev@dpdk.org,
 Hemant Agrawal <hemant.agrawal@nxp.com>
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On 12/8/2017 2:28 AM, Olivier Matz wrote:
> To be compliant with the DPDK licensing guidelines, switch to
> BSD-3-Clause. It can be done safely since the BSD headers from which
> these files derive also exist as a BSD-3-Clause license in FreeBSD.
> 
> Link: https://raw.githubusercontent.com/freebsd/freebsd/78a6b0861813af31e1354fa407c5701e8764b4d6/sys/netinet/ip_icmp.h
> Link: https://raw.githubusercontent.com/freebsd/freebsd/78a6b0861813af31e1354fa407c5701e8764b4d6/sys/netinet/ip.h
> Link: https://raw.githubusercontent.com/freebsd/freebsd/78a6b0861813af31e1354fa407c5701e8764b4d6/sys/netinet/sctp.h
> Link: https://raw.githubusercontent.com/freebsd/freebsd/78a6b0861813af31e1354fa407c5701e8764b4d6/sys/netinet/tcp.h
> Link: https://raw.githubusercontent.com/freebsd/freebsd/78a6b0861813af31e1354fa407c5701e8764b4d6/sys/netinet/udp.h
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>

<...>

> + * SPDX-License-Identifier: BSD-3-Clause
>   *
> - *      @(#)in.h        8.3 (Berkeley) 1/3/94
> - * $FreeBSD: src/sys/netinet/in.h,v 1.82 2003/10/25 09:37:10 ume Exp $
> + * Copyright(c) 1982, 1986, 1990, 1993
> + *      The Regents of the University of California.
> + * Copyright(c) 2013 6WIND S.A.
> + * All rights reserved.
>   */

Not sure how much it matters but in the document Hemant put, order is different,
it starts with Copyright line instead of SPDX line:

"
Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
SPDX-License-Identifier:        BSD-3-Clause
"

So I assume for multiple Copyright holder:

"
Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER
Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER-2
Copyright (C) [YEAR] NAME-OF-COPYRIGHT-HOLDER-3
SPDX-License-Identifier:        BSD-3-Clause
"

And do we still need "All rights reserved." ?


I am for following same syntax in all files (whichever is chosen), this may
helps us in the future for scripting licensing checks.

<...>