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![Greg Kroah-Hartman](/assets/img/avatar_default.png)
Many user space API headers are missing licensing information, which makes it hard for compliance tools to determine the correct license. By default are files without license information under the default license of the kernel, which is GPLV2. Marking them GPLV2 would exclude them from being included in non GPLV2 code, which is obviously not intended. The user space API headers fall under the syscall exception which is in the kernels COPYING file: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". otherwise syscall usage would not be possible. Update the files which contain no license information with an SPDX license identifier. The chosen identifier is 'GPL-2.0 WITH Linux-syscall-note' which is the officially assigned identifier for the Linux syscall exception. SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
19 lines
502 B
C
19 lines
502 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _ASM_GENERIC_SWAB_H
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#define _ASM_GENERIC_SWAB_H
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#include <asm/bitsperlong.h>
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/*
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* 32 bit architectures typically (but not always) want to
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* set __SWAB_64_THRU_32__. In user space, this is only
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* valid if the compiler supports 64 bit data types.
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*/
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#if __BITS_PER_LONG == 32
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
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#define __SWAB_64_THRU_32__
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#endif
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#endif
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#endif /* _ASM_GENERIC_SWAB_H */
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