Bug#896165: linux: request packaging of bpftool

[Simon Horman <simon.horman@netronome.com>]

On Wed, Nov 28, 2018 at 07:49:50PM -0800, Noah Meyerhans wrote:
> On Tue, Nov 27, 2018 at 09:50:17AM -0800, Jakub Kicinski wrote:
> > > > Please see https://salsa.debian.org/kernel-team/linux/merge_requests/72
> > > 
> > > Ugh. We cannot currently package bpftool in Debian. There are several
> > > GPLv2-only files in its source tree, and it links unconditionally
> > > against the GPLv3 libbfd. :(
> > 
> > If we relicense the GPLv2-only files to be GPLv2-only OR BSD-2-Clause
> > - like the majority of bpftool sources - would that work?
> > 
> > I wanted to make sure GPLv2-only + BSD-2-Clause will satisfy the
> > license requirement when linking against libbfd, before I start chasing
> > people for acks on the relicense :)
> 
> Yes, the BSD 2-clause license is OK. GPLv2 or greater would be OK, too.
> It's really just GPLv2-only in this case that's causing the problem.

Hi,

the following merge-commit, which has been accepted into bpf-next
for inclusion in v4.21, addresses the problem raised above by
clarifying that the licence of bpftool is GPLv2-only + BSD-2-Clause.

commit 00842be52f2015c3c1028e16b565f325f4ca20fc
Merge: 8f9a8a619311 907b22365115
Author: Daniel Borkmann <daniel@iogearbox.net>
Date:   Thu Dec 13 12:08:45 2018 +0100

    Merge branch 'bpf-bpftool-license-update'
    
    Jakub Kicinski says:
    
    ====================
    We are changing/clarifying the license on bpftool to GPLv2-only +
    BSD-2-Clause for all files.  Current license mix is incompatible
    with libbfd (which is GPLv3-only) and therefore Debian maintainers
    are apprehensive about packaging bpftool.
    
    Acks include authors of code which has been copied into bpftool (e.g.
    JSON writer from iproute2, code from tools/bpf, code from BPF samples
    and selftests, etc.)
    
    Thanks again to all the authors who acked the change!
    ====================
    
    Acked-by: Roman Gushchin <guro@fb.com>
    Acked-by: YueHaibing <yuehaibing@huawei.com>
    Acked-by: Yonghong Song <yhs@fb.com>
    Acked-by: Stanislav Fomichev <sdf@google.com>
    Acked-by: Sean Young <sean@mess.org>
    Acked-by: Jiri Benc <jbenc@redhat.com>
    Acked-by: David Calavera <david.calavera@gmail.com>
    Acked-by: Andrey Ignatov <rdna@fb.com>
    Acked-by: Joe Stringer <joe@wand.net.nz>
    Acked-by: David Ahern <dsahern@gmail.com>
    Acked-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
    Acked-by: Petar Penkov <ppenkov@stanford.edu>
    Acked-by: Sandipan Das <sandipan@linux.ibm.com>
    Acked-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
    Acked-by: Stephen Hemminger <stephen@networkplumber.org>
    Acked-by: John Fastabend <john.fastabend@gmail.com>
    Acked-by: Taeung Song <treeze.taeung@gmail.com>
    Acked-by: Jiri Olsa <jolsa@kernel.org>
    Acked-by: Daniel Borkmann <daniel@iogearbox.net>
    CC: okash.khawaja@gmail.com
    Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>