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 <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>
2017-11-01 21:07:57 +07:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2008-02-05 07:27:55 +07:00
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/*
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* Contains register definitions for the Freescale Embedded Performance
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* Monitor.
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*/
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#ifdef __KERNEL__
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#ifndef __ASM_POWERPC_REG_FSL_EMB_H__
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#define __ASM_POWERPC_REG_FSL_EMB_H__
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2018-07-05 23:24:59 +07:00
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#include <linux/stringify.h>
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2008-02-05 07:27:55 +07:00
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#ifndef __ASSEMBLY__
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/* Performance Monitor Registers */
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#define mfpmr(rn) ({unsigned int rval; \
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asm volatile("mfpmr %0," __stringify(rn) \
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: "=r" (rval)); rval;})
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#define mtpmr(rn, v) asm volatile("mtpmr " __stringify(rn) ",%0" : : "r" (v))
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#endif /* __ASSEMBLY__ */
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/* Freescale Book E Performance Monitor APU Registers */
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#define PMRN_PMC0 0x010 /* Performance Monitor Counter 0 */
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#define PMRN_PMC1 0x011 /* Performance Monitor Counter 1 */
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2013-06-06 03:01:32 +07:00
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#define PMRN_PMC2 0x012 /* Performance Monitor Counter 2 */
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#define PMRN_PMC3 0x013 /* Performance Monitor Counter 3 */
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#define PMRN_PMC4 0x014 /* Performance Monitor Counter 4 */
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#define PMRN_PMC5 0x015 /* Performance Monitor Counter 5 */
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2008-02-05 07:27:55 +07:00
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#define PMRN_PMLCA0 0x090 /* PM Local Control A0 */
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#define PMRN_PMLCA1 0x091 /* PM Local Control A1 */
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#define PMRN_PMLCA2 0x092 /* PM Local Control A2 */
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#define PMRN_PMLCA3 0x093 /* PM Local Control A3 */
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#define PMRN_PMLCA4 0x094 /* PM Local Control A4 */
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#define PMRN_PMLCA5 0x095 /* PM Local Control A5 */
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2008-02-05 07:27:55 +07:00
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#define PMLCA_FC 0x80000000 /* Freeze Counter */
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#define PMLCA_FCS 0x40000000 /* Freeze in Supervisor */
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#define PMLCA_FCU 0x20000000 /* Freeze in User */
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#define PMLCA_FCM1 0x10000000 /* Freeze when PMM==1 */
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#define PMLCA_FCM0 0x08000000 /* Freeze when PMM==0 */
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#define PMLCA_CE 0x04000000 /* Condition Enable */
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#define PMLCA_FGCS1 0x00000002 /* Freeze in guest state */
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#define PMLCA_FGCS0 0x00000001 /* Freeze in hypervisor state */
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2008-02-05 07:27:55 +07:00
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2013-06-06 03:22:10 +07:00
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#define PMLCA_EVENT_MASK 0x01ff0000 /* Event field */
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2008-02-05 07:27:55 +07:00
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#define PMLCA_EVENT_SHIFT 16
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#define PMRN_PMLCB0 0x110 /* PM Local Control B0 */
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#define PMRN_PMLCB1 0x111 /* PM Local Control B1 */
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#define PMRN_PMLCB2 0x112 /* PM Local Control B2 */
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#define PMRN_PMLCB3 0x113 /* PM Local Control B3 */
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#define PMRN_PMLCB4 0x114 /* PM Local Control B4 */
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#define PMRN_PMLCB5 0x115 /* PM Local Control B5 */
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2008-02-05 07:27:55 +07:00
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tree-wide: fix assorted typos all over the place
That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-11-14 22:09:05 +07:00
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#define PMLCB_THRESHMUL_MASK 0x0700 /* Threshold Multiple Field */
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2008-02-05 07:27:55 +07:00
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#define PMLCB_THRESHMUL_SHIFT 8
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#define PMLCB_THRESHOLD_MASK 0x003f /* Threshold Field */
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#define PMLCB_THRESHOLD_SHIFT 0
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#define PMRN_PMGC0 0x190 /* PM Global Control 0 */
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#define PMGC0_FAC 0x80000000 /* Freeze all Counters */
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#define PMGC0_PMIE 0x40000000 /* Interrupt Enable */
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#define PMGC0_FCECE 0x20000000 /* Freeze countes on
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Enabled Condition or
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Event */
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#define PMRN_UPMC0 0x000 /* User Performance Monitor Counter 0 */
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#define PMRN_UPMC1 0x001 /* User Performance Monitor Counter 1 */
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#define PMRN_UPMC2 0x002 /* User Performance Monitor Counter 2 */
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#define PMRN_UPMC3 0x003 /* User Performance Monitor Counter 3 */
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2013-06-06 03:22:09 +07:00
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#define PMRN_UPMC4 0x004 /* User Performance Monitor Counter 4 */
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#define PMRN_UPMC5 0x005 /* User Performance Monitor Counter 5 */
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2008-02-05 07:27:55 +07:00
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#define PMRN_UPMLCA0 0x080 /* User PM Local Control A0 */
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#define PMRN_UPMLCA1 0x081 /* User PM Local Control A1 */
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#define PMRN_UPMLCA2 0x082 /* User PM Local Control A2 */
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#define PMRN_UPMLCA3 0x083 /* User PM Local Control A3 */
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#define PMRN_UPMLCA4 0x084 /* User PM Local Control A4 */
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#define PMRN_UPMLCA5 0x085 /* User PM Local Control A5 */
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2008-02-05 07:27:55 +07:00
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#define PMRN_UPMLCB0 0x100 /* User PM Local Control B0 */
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#define PMRN_UPMLCB1 0x101 /* User PM Local Control B1 */
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#define PMRN_UPMLCB2 0x102 /* User PM Local Control B2 */
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#define PMRN_UPMLCB3 0x103 /* User PM Local Control B3 */
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#define PMRN_UPMLCB4 0x104 /* User PM Local Control B4 */
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#define PMRN_UPMLCB5 0x105 /* User PM Local Control B5 */
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2008-02-05 07:27:55 +07:00
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#define PMRN_UPMGC0 0x180 /* User PM Global Control 0 */
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#endif /* __ASM_POWERPC_REG_FSL_EMB_H__ */
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#endif /* __KERNEL__ */
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