Hi. I was redirected to the kernel mailing lists from the libbpf project group. The file https://github.com/libbpf/libbpf/blob/v1.2.0/include/uapi/linux/bpf.h, which is a copy of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/bpf.h?h=v6.6-rc5 seems to have some conflicting license information /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. */ The first line says that it's GPL-2.0 with linux-syscall-note, but the following lines are the GPL 2 license, without the syscall note. Which license applies to this file? Thanks in advance GV