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xz: switch from public domain to BSD Zero Clause License (0BSD)

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Remove the public domain notices and add SPDX license identifiers.

Change MODULE_LICENSE from "GPL" to "Dual BSD/GPL" because 0BSD should
count as a BSD license variant here.

The switch to 0BSD was done in the upstream XZ Embedded project because
public domain has (real or perceived) legal issues in some jurisdictions.

Link: https://lkml.kernel.org/r/20240721133633.47721-4-lasse.collin@tukaani.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Reviewed-by: Sam James <sam@gentoo.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jubin Zhong <zhongjubin@huawei.com>
Cc: Jules Maselbas <jmaselbas@zdiv.net>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Rui Li <me@lirui.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Lasse Collin 2024-07-21 16:36:18 +03:00 committed by Andrew Morton
parent c1ccbbaa76
commit 836d13a6ef
13 changed files with 27 additions and 52 deletions
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5
include/linux/decompress/unxz.h
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@ -1,10 +1,9 @@
/* SPDX-License-Identifier: 0BSD */
/*
* Wrapper for decompressing XZ-compressed kernel, initramfs, and initrd
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#ifndef DECOMPRESS_UNXZ_H

5
include/linux/xz.h
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@ -1,11 +1,10 @@
/* SPDX-License-Identifier: 0BSD */
/*
* XZ decompressor
*
* Authors: Lasse Collin <lasse.collin@tukaani.org>
* Igor Pavlov <https://7-zip.org/>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#ifndef XZ_H

5
lib/decompress_unxz.c
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@ -1,10 +1,9 @@
// SPDX-License-Identifier: 0BSD
/*
* Wrapper for decompressing XZ-compressed kernel, initramfs, and initrd
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
/*

5
lib/xz/xz_crc32.c
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@ -1,11 +1,10 @@
// SPDX-License-Identifier: 0BSD
/*
* CRC32 using the polynomial from IEEE-802.3
*
* Authors: Lasse Collin <lasse.collin@tukaani.org>
* Igor Pavlov <https://7-zip.org/>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
/*

5
lib/xz/xz_dec_bcj.c
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@ -1,11 +1,10 @@
// SPDX-License-Identifier: 0BSD
/*
* Branch/Call/Jump (BCJ) filter decoders
*
* Authors: Lasse Collin <lasse.collin@tukaani.org>
* Igor Pavlov <https://7-zip.org/>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#include "xz_private.h"

5
lib/xz/xz_dec_lzma2.c
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@ -1,11 +1,10 @@
// SPDX-License-Identifier: 0BSD
/*
* LZMA2 decoder
*
* Authors: Lasse Collin <lasse.collin@tukaani.org>
* Igor Pavlov <https://7-zip.org/>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#include "xz_private.h"

5
lib/xz/xz_dec_stream.c
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@ -1,10 +1,9 @@
// SPDX-License-Identifier: 0BSD
/*
* .xz Stream decoder
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#include "xz_private.h"

12
lib/xz/xz_dec_syms.c
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@ -1,10 +1,9 @@
// SPDX-License-Identifier: 0BSD
/*
* XZ decoder module information
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#include <linux/module.h>
@ -25,9 +24,4 @@ EXPORT_SYMBOL(xz_dec_microlzma_end);
MODULE_DESCRIPTION("XZ decompressor");
MODULE_VERSION("1.1");
MODULE_AUTHOR("Lasse Collin <lasse.collin@tukaani.org> and Igor Pavlov");
/*
* This code is in the public domain, but in Linux it's simplest to just
* say it's GPL and consider the authors as the copyright holders.
*/
MODULE_LICENSE("GPL");
MODULE_LICENSE("Dual BSD/GPL");

12
lib/xz/xz_dec_test.c
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@ -1,10 +1,9 @@
// SPDX-License-Identifier: 0BSD
/*
* XZ decoder tester
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#include <linux/kernel.h>
@ -212,9 +211,4 @@ module_exit(xz_dec_test_exit);
MODULE_DESCRIPTION("XZ decompressor tester");
MODULE_VERSION("1.0");
MODULE_AUTHOR("Lasse Collin <lasse.collin@tukaani.org>");
/*
* This code is in the public domain, but in Linux it's simplest to just
* say it's GPL and consider the authors as the copyright holders.
*/
MODULE_LICENSE("GPL");
MODULE_LICENSE("Dual BSD/GPL");

5
lib/xz/xz_lzma2.h
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@ -1,11 +1,10 @@
/* SPDX-License-Identifier: 0BSD */
/*
* LZMA2 definitions
*
* Authors: Lasse Collin <lasse.collin@tukaani.org>
* Igor Pavlov <https://7-zip.org/>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#ifndef XZ_LZMA2_H

5
lib/xz/xz_private.h
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@ -1,10 +1,9 @@
/* SPDX-License-Identifier: 0BSD */
/*
* Private includes and definitions
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#ifndef XZ_PRIVATE_H

5
lib/xz/xz_stream.h
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@ -1,10 +1,9 @@
/* SPDX-License-Identifier: 0BSD */
/*
* Definitions for handling the .xz file format
*
* Author: Lasse Collin <lasse.collin@tukaani.org>
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*/
#ifndef XZ_STREAM_H

5
scripts/xz_wrap.sh
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@ -1,13 +1,10 @@
#!/bin/sh
# SPDX-License-Identifier: 0BSD
#
# This is a wrapper for xz to compress the kernel image using appropriate
# compression options depending on the architecture.
#
# Author: Lasse Collin <lasse.collin@tukaani.org>
#
# This file has been put into the public domain.
# You can do whatever you want with this file.
#
BCJ=
LZMA2OPTS=