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samples/bpf: Relicense bpf_insn.h as GPL-2.0-only OR BSD-2-Clause 

Bugzilla: http://bugzilla.redhat.com/2041365

commit d75fe9cb1dd062684c9fb8a4581738170365dc06
Author: Luca Boccassi <bluca@debian.org>
Date:   Thu Sep 23 01:05:40 2021 +0100

    samples/bpf: Relicense bpf_insn.h as GPL-2.0-only OR BSD-2-Clause

    libbpf and bpftool have been dual-licensed to facilitate inclusion in software
    that is not compatible with GPL2-only (ie: Apache2), but the samples are still
    GPL2-only.

    Given these files are samples, they get naturally copied around. For example,
    it is the case for samples/bpf/bpf_insn.h which was copied into the systemd
    tree: https://github.com/systemd/systemd/blob/main/src/shared/linux/bpf_insn.h

    Some more context on systemd's needs specifically:

      Most of systemd is (L)GPL2-or-later, which means there is no perceived
      incompatibility with Apache2 software and can thus be linked with
      OpenSSL 3.0. But given this GPL2-only header is included this is currently
      not possible. Dual-licensing this header solves this problem for us as we
      are scoping a move to OpenSSL 3.0, see:

      https://lists.freedesktop.org/archives/systemd-devel/2021-September/046882.html

    Dual-license this header as GPL-2.0-only OR BSD-2-Clause to follow the same
    licensing used by libbpf and bpftool:

      1bc38b8ff6 ("libbpf: relicense libbpf as LGPL-2.1 OR BSD-2-Clause")
      907b223651 ("tools: bpftool: dual license all files")

    Signed-off-by: Luca Boccassi <bluca@debian.org>
    Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
    Acked-by: Simon Horman <simon.horman@corigine.com>
    Acked-by: Daniel Mack <daniel@zonque.org>
    Acked-by: Josef Bacik <josef@toxicpanda.com>
    Acked-by: Joe Stringer <joe@ovn.org>
    Acked-by: Chenbo Feng <fengc@google.com>
    Acked-by: Björn Töpel <bjorn@kernel.org>
    Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
    Acked-by: Brendan Jackman <jackmanb@google.com>
    Acked-by: Daniel Borkmann <daniel@iogearbox.net>
    Acked-by: Alexei Starovoitov <ast@kernel.org>
    Link: https://lore.kernel.org/bpf/20210923000540.47344-1-luca.boccassi@gmail.com

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
This commit is contained in:
Jerome Marchand 2022-01-17 16:31:30 +01:00
parent 65cef3b9c6
commit adb8e526b7
1 changed files with 1 additions and 1 deletions
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2
samples/bpf/bpf_insn.h
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@ -1,4 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/* eBPF instruction mini library */
#ifndef __BPF_INSN_H
#define __BPF_INSN_H