From b24413180f5600bcb3bb70fbed5cf186b60864bd Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 1 Nov 2017 15:07:57 +0100 Subject: License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is 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. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman --- arch/mn10300/Kconfig | 1 + arch/mn10300/Kconfig.debug | 1 + arch/mn10300/boot/compressed/Makefile | 1 + arch/mn10300/boot/tools/build.c | 1 + arch/mn10300/include/asm/kmap_types.h | 1 + arch/mn10300/include/asm/mmu.h | 1 + arch/mn10300/include/asm/page_offset.h | 1 + arch/mn10300/include/asm/shmparam.h | 1 + arch/mn10300/include/asm/spinlock_types.h | 1 + arch/mn10300/include/asm/termios.h | 1 + arch/mn10300/kernel/Makefile | 1 + arch/mn10300/kernel/asm-offsets.c | 1 + arch/mn10300/kernel/gdb-stub.c | 1 + arch/mn10300/mm/Kconfig.cache | 1 + arch/mn10300/mm/Makefile | 1 + arch/mn10300/oprofile/Makefile | 1 + arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h | 1 + arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h | 1 + arch/mn10300/unit-asb2364/include/unit/fpga-regs.h | 1 + 19 files changed, 19 insertions(+) (limited to 'arch/mn10300') diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 38e3494bfb63..e9d8d60bd28b 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 config MN10300 def_bool y select HAVE_EXIT_THREAD diff --git a/arch/mn10300/Kconfig.debug b/arch/mn10300/Kconfig.debug index 94efb3ed223f..37ada651f756 100644 --- a/arch/mn10300/Kconfig.debug +++ b/arch/mn10300/Kconfig.debug @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 menu "Kernel hacking" source "lib/Kconfig.debug" diff --git a/arch/mn10300/boot/compressed/Makefile b/arch/mn10300/boot/compressed/Makefile index 5f56f9de1061..9b9a48fc8e53 100644 --- a/arch/mn10300/boot/compressed/Makefile +++ b/arch/mn10300/boot/compressed/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Create a compressed vmlinux image from the original vmlinux # diff --git a/arch/mn10300/boot/tools/build.c b/arch/mn10300/boot/tools/build.c index 4f552ead0f8e..3ce158fe07b0 100644 --- a/arch/mn10300/boot/tools/build.c +++ b/arch/mn10300/boot/tools/build.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 1991, 1992 Linus Torvalds * Copyright (C) 1997 Martin Mares diff --git a/arch/mn10300/include/asm/kmap_types.h b/arch/mn10300/include/asm/kmap_types.h index 76d093b58d4f..f444d7ffa766 100644 --- a/arch/mn10300/include/asm/kmap_types.h +++ b/arch/mn10300/include/asm/kmap_types.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_KMAP_TYPES_H #define _ASM_KMAP_TYPES_H diff --git a/arch/mn10300/include/asm/mmu.h b/arch/mn10300/include/asm/mmu.h index 2d2d097e7309..b9d6d41adace 100644 --- a/arch/mn10300/include/asm/mmu.h +++ b/arch/mn10300/include/asm/mmu.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* MN10300 Memory management context * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. diff --git a/arch/mn10300/include/asm/page_offset.h b/arch/mn10300/include/asm/page_offset.h index 8eb5b16ad86b..1e869aa09418 100644 --- a/arch/mn10300/include/asm/page_offset.h +++ b/arch/mn10300/include/asm/page_offset.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* MN10300 Kernel base address * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. diff --git a/arch/mn10300/include/asm/shmparam.h b/arch/mn10300/include/asm/shmparam.h index ab666ed1a070..3a31faaa4353 100644 --- a/arch/mn10300/include/asm/shmparam.h +++ b/arch/mn10300/include/asm/shmparam.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_SHMPARAM_H #define _ASM_SHMPARAM_H diff --git a/arch/mn10300/include/asm/spinlock_types.h b/arch/mn10300/include/asm/spinlock_types.h index 653dc519b405..32abdc89bbc7 100644 --- a/arch/mn10300/include/asm/spinlock_types.h +++ b/arch/mn10300/include/asm/spinlock_types.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_SPINLOCK_TYPES_H #define _ASM_SPINLOCK_TYPES_H diff --git a/arch/mn10300/include/asm/termios.h b/arch/mn10300/include/asm/termios.h index c2e29c75dfac..4010edcaa08e 100644 --- a/arch/mn10300/include/asm/termios.h +++ b/arch/mn10300/include/asm/termios.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_TERMIOS_H #define _ASM_TERMIOS_H diff --git a/arch/mn10300/kernel/Makefile b/arch/mn10300/kernel/Makefile index 561029f7fa44..de32af0e4b6e 100644 --- a/arch/mn10300/kernel/Makefile +++ b/arch/mn10300/kernel/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for the MN10300-specific core kernel code # diff --git a/arch/mn10300/kernel/asm-offsets.c b/arch/mn10300/kernel/asm-offsets.c index e5a61c659b5a..57e6cc96267b 100644 --- a/arch/mn10300/kernel/asm-offsets.c +++ b/arch/mn10300/kernel/asm-offsets.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Generate definitions needed by assembly language modules. * This code generates raw asm output which is post-processed diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c index a128c57b586b..3399d5699804 100644 --- a/arch/mn10300/kernel/gdb-stub.c +++ b/arch/mn10300/kernel/gdb-stub.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* MN10300 GDB stub * * Originally written by Glenn Engel, Lake Stevens Instrument Division diff --git a/arch/mn10300/mm/Kconfig.cache b/arch/mn10300/mm/Kconfig.cache index bfbe52691f2c..8cc5d9ec3b6c 100644 --- a/arch/mn10300/mm/Kconfig.cache +++ b/arch/mn10300/mm/Kconfig.cache @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # MN10300 CPU cache options # diff --git a/arch/mn10300/mm/Makefile b/arch/mn10300/mm/Makefile index 11f38466ac28..048ba6f67f9a 100644 --- a/arch/mn10300/mm/Makefile +++ b/arch/mn10300/mm/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for the MN10300-specific memory management code # diff --git a/arch/mn10300/oprofile/Makefile b/arch/mn10300/oprofile/Makefile index 918dbe60ebb6..9fa95aaf496b 100644 --- a/arch/mn10300/oprofile/Makefile +++ b/arch/mn10300/oprofile/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for the MN10300-specific profiling code # diff --git a/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h b/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h index f537801a44ba..516afe824055 100644 --- a/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h +++ b/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_PROC_INTCTL_REGS_H #define _ASM_PROC_INTCTL_REGS_H diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h b/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h index a1e977273d19..4d4084ea6694 100644 --- a/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h +++ b/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_PROC_INTCTL_REGS_H #define _ASM_PROC_INTCTL_REGS_H diff --git a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h index 33f100f9b468..2901ed344b3d 100644 --- a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h +++ b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* ASB2364 FPGA registers */ -- cgit