The patch titled
Subject: xz: switch from public domain to BSD Zero Clause License (0BSD)
has been added to the -mm mm-nonmm-unstable branch. Its filename is
xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Lasse Collin <lasse.collin@xxxxxxxxxxx>
Subject: xz: switch from public domain to BSD Zero Clause License (0BSD)
Date: Wed, 20 Mar 2024 20:38:36 +0200
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/20240320183846.19475-4-lasse.collin@xxxxxxxxxxx
Signed-off-by: Lasse Collin <lasse.collin@xxxxxxxxxxx>
Reviewed-by: Jia Tan <jiat0218@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/decompress/unxz.h | 5 ++---
include/linux/xz.h | 5 ++---
lib/decompress_unxz.c | 5 ++---
lib/xz/xz_crc32.c | 5 ++---
lib/xz/xz_dec_bcj.c | 5 ++---
lib/xz/xz_dec_lzma2.c | 5 ++---
lib/xz/xz_dec_stream.c | 5 ++---
lib/xz/xz_dec_syms.c | 12 +++---------
lib/xz/xz_dec_test.c | 12 +++---------
lib/xz/xz_lzma2.h | 5 ++---
lib/xz/xz_private.h | 5 ++---
lib/xz/xz_stream.h | 5 ++---
scripts/xz_wrap.sh | 5 +----
13 files changed, 27 insertions(+), 52 deletions(-)
--- a/include/linux/decompress/unxz.h~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/include/linux/decompress/unxz.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: 0BSD */
+
/*
* Wrapper for decompressing XZ-compressed kernel, initramfs, and initrd
*
* Author: Lasse Collin <lasse.collin@xxxxxxxxxxx>
- *
- * This file has been put into the public domain.
- * You can do whatever you want with this file.
*/
#ifndef DECOMPRESS_UNXZ_H
--- a/include/linux/xz.h~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/include/linux/xz.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: 0BSD */
+
/*
* XZ decompressor
*
* Authors: Lasse Collin <lasse.collin@xxxxxxxxxxx>
* 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
--- a/lib/decompress_unxz.c~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/decompress_unxz.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: 0BSD
+
/*
* Wrapper for decompressing XZ-compressed kernel, initramfs, and initrd
*
* Author: Lasse Collin <lasse.collin@xxxxxxxxxxx>
- *
- * This file has been put into the public domain.
- * You can do whatever you want with this file.
*/
/*
--- a/lib/xz/xz_crc32.c~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_crc32.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: 0BSD
+
/*
* CRC32 using the polynomial from IEEE-802.3
*
* Authors: Lasse Collin <lasse.collin@xxxxxxxxxxx>
* Igor Pavlov <https://7-zip.org/>
- *
- * This file has been put into the public domain.
- * You can do whatever you want with this file.
*/
/*
--- a/lib/xz/xz_dec_bcj.c~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_dec_bcj.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: 0BSD
+
/*
* Branch/Call/Jump (BCJ) filter decoders
*
* Authors: Lasse Collin <lasse.collin@xxxxxxxxxxx>
* 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"
--- a/lib/xz/xz_dec_lzma2.c~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_dec_lzma2.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: 0BSD
+
/*
* LZMA2 decoder
*
* Authors: Lasse Collin <lasse.collin@xxxxxxxxxxx>
* 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"
--- a/lib/xz/xz_dec_stream.c~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_dec_stream.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: 0BSD
+
/*
* .xz Stream decoder
*
* Author: Lasse Collin <lasse.collin@xxxxxxxxxxx>
- *
- * This file has been put into the public domain.
- * You can do whatever you want with this file.
*/
#include "xz_private.h"
--- a/lib/xz/xz_dec_syms.c~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_dec_syms.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: 0BSD
+
/*
* XZ decoder module information
*
* Author: Lasse Collin <lasse.collin@xxxxxxxxxxx>
- *
- * 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@xxxxxxxxxxx> 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");
--- a/lib/xz/xz_dec_test.c~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_dec_test.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: 0BSD
+
/*
* XZ decoder tester
*
* Author: Lasse Collin <lasse.collin@xxxxxxxxxxx>
- *
- * 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@xxxxxxxxxxx>");
-
-/*
- * 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");
--- a/lib/xz/xz_lzma2.h~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_lzma2.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: 0BSD */
+
/*
* LZMA2 definitions
*
* Authors: Lasse Collin <lasse.collin@xxxxxxxxxxx>
* 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
--- a/lib/xz/xz_private.h~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_private.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: 0BSD */
+
/*
* Private includes and definitions
*
* Author: Lasse Collin <lasse.collin@xxxxxxxxxxx>
- *
- * This file has been put into the public domain.
- * You can do whatever you want with this file.
*/
#ifndef XZ_PRIVATE_H
--- a/lib/xz/xz_stream.h~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/lib/xz/xz_stream.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: 0BSD */
+
/*
* Definitions for handling the .xz file format
*
* Author: Lasse Collin <lasse.collin@xxxxxxxxxxx>
- *
- * This file has been put into the public domain.
- * You can do whatever you want with this file.
*/
#ifndef XZ_STREAM_H
--- a/scripts/xz_wrap.sh~xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd
+++ a/scripts/xz_wrap.sh
@@ -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@xxxxxxxxxxx>
-#
-# This file has been put into the public domain.
-# You can do whatever you want with this file.
-#
BCJ=
LZMA2OPTS=
_
Patches currently in -mm which might be from lasse.collin@xxxxxxxxxxx are
maintainers-add-xz-embedded-maintainers.patch
licenses-add-0bsd-license-text.patch
xz-switch-from-public-domain-to-bsd-zero-clause-license-0bsd.patch
xz-documentation-staging-xzrst-revise-thoroughly.patch
xz-fix-comments-and-coding-style.patch
xz-cleanup-crc32-edits-from-2018.patch
xz-optimize-for-loop-conditions-in-the-bcj-decoders.patch
xz-add-arm64-bcj-filter.patch
xz-add-risc-v-bcj-filter.patch
xz-use-128-mib-dictionary-and-force-single-threaded-mode.patch
xz-adjust-arch-specific-options-for-better-kernel-compression.patch
