netdev - Re: [patch 8/9] tools: bpftool: Cleanup license mess

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Message-ID: <20190118232849.jec4mipctsupgggn@ast-mbp.dhcp.thefacebook.com>
Date:   Fri, 18 Jan 2019 15:28:51 -0800
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Jonathan Corbet <corbet@....net>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Roman Gushchin <guro@...com>,
        YueHaibing <yuehaibing@...wei.com>, Yonghong Song <yhs@...com>,
        Stanislav Fomichev <sdf@...gle.com>,
        Sean Young <sean@...s.org>, Jiri Benc <jbenc@...hat.com>,
        David Calavera <david.calavera@...il.com>,
        Andrey Ignatov <rdna@...com>, Joe Stringer <joe@...d.net.nz>,
        David Ahern <dsahern@...il.com>,
        Petar Penkov <ppenkov@...nford.edu>,
        Sandipan Das <sandipan@...ux.ibm.com>,
        Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>,
        Stephen Hemminger <stephen@...workplumber.org>,
        John Fastabend <john.fastabend@...il.com>,
        Taeung Song <treeze.taeung@...il.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Quentin Monnet <quentin.monnet@...ronome.com>,
        okash.khawaja@...il.com, netdev@...r.kernel.org
Subject: Re: [patch 8/9] tools: bpftool: Cleanup license mess

On Fri, Jan 18, 2019 at 12:14:24AM +0100, Thomas Gleixner wrote:
> Precise and non-ambiguous license information is important. The recent
> relicensing of the bpftools introduced a license conflict.
> 
> The files have now:
> 
>      SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause
> 
> and
> 
>      * This program is free software; you can redistribute it and/or
>      * modify it under the terms of the GNU General Public License
>      * as published by the Free Software Foundation; either version
>      * 2 of the License, or (at your option) any later version
> 
> Amazingly about 20 people acked that change and neither they nor the
> committer noticed. Oh well.
> 
> Digging deeper: The files were imported from the iproute2 repository with
> the GPL V2 or later boiler plate text in commit b66e907cfee2 ("tools:
> bpftool: copy JSON writer from iproute2 repository")
> 
> Looking at the iproute2 repository at
> 
>   git://git.kernel.org/pub/scm/network/iproute2/iproute2.git
> 
> the following commit is the equivivalent:
> 
>   commit d9d8c839 ("json_writer: add SPDX Identifier (GPL-2/BSD-2)")
> 
> That commit explicitly removes the boiler plate and relicenses the code
> uner GPL-2.0-only and BSD-2-Clause. As Steven wrote the original code and
> also the relicensing commit, it's assumed that the relicensing was intended
> to do exaclty that. Just the kernel side update failed to remove the boiler
> plate. Do so now.
> 
> Fixes: 907b22365115 ("tools: bpftool: dual license all files")
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Cc: Jakub Kicinski <jakub.kicinski@...ronome.com>
> Cc: Roman Gushchin <guro@...com>
> Cc: YueHaibing <yuehaibing@...wei.com>
> Cc: Yonghong Song <yhs@...com>
> Cc: Stanislav Fomichev <sdf@...gle.com>
> Cc: Sean Young <sean@...s.org>
> Cc: Jiri Benc <jbenc@...hat.com>
> Cc: David Calavera <david.calavera@...il.com>
> Cc: Andrey Ignatov <rdna@...com>
> Cc: Joe Stringer <joe@...d.net.nz>
> Cc: David Ahern <dsahern@...il.com>
> Cc: Alexei Starovoitov <alexei.starovoitov@...il.com>
> Cc: Petar Penkov <ppenkov@...nford.edu>
> Cc: Sandipan Das <sandipan@...ux.ibm.com>
> Cc: Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>
> Cc: Stephen Hemminger <stephen@...workplumber.org>
> Cc: John Fastabend <john.fastabend@...il.com>
> Cc: Taeung Song <treeze.taeung@...il.com>
> Cc: Jiri Olsa <jolsa@...nel.org>
> Cc: Alexei Starovoitov <ast@...nel.org>
> Cc: Daniel Borkmann <daniel@...earbox.net>
> Cc: Quentin Monnet <quentin.monnet@...ronome.com>
> CC: okash.khawaja@...il.com
> Cc: netdev@...r.kernel.org
> ---
> 
> P.S.: This patch is part of a larger cleanup, but independent of other
>       patches and is intended to be picked up by the maintainer directly.

Applied this patch to bpf tree.
Sorry about this mess.