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 22:07:57 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-17 06:20:36 +08:00
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/* Hewlett-Packard Harmony audio driver
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* Copyright (C) 2004, Kyle McMartin <kyle@parisc-linux.org>
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*/
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#ifndef __HARMONY_H__
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#define __HARMONY_H__
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struct harmony_buffer {
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unsigned long addr;
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int buf;
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int count;
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int size;
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int coherent;
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};
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2005-11-17 22:12:11 +08:00
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struct snd_harmony {
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2005-04-17 06:20:36 +08:00
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int irq;
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unsigned long hpa; /* hard physical address */
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void __iomem *iobase; /* remapped io address */
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struct parisc_device *dev;
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struct {
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u32 gain;
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u32 rate;
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u32 format;
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u32 stereo;
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int playing;
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int capturing;
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} st;
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struct snd_dma_device dma; /* playback/capture */
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struct harmony_buffer pbuf;
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struct harmony_buffer cbuf;
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struct snd_dma_buffer gdma; /* graveyard */
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struct snd_dma_buffer sdma; /* silence */
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struct {
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unsigned long play_intr;
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unsigned long rec_intr;
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unsigned long graveyard_intr;
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unsigned long silence_intr;
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} stats;
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2005-11-17 22:12:11 +08:00
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struct snd_pcm *pcm;
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struct snd_card *card;
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struct snd_pcm_substream *psubs;
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struct snd_pcm_substream *csubs;
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struct snd_info_entry *proc;
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2005-04-17 06:20:36 +08:00
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spinlock_t lock;
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spinlock_t mixer_lock;
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2005-11-17 22:12:11 +08:00
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};
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2005-04-17 06:20:36 +08:00
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#define MAX_PCM_DEVICES 1
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#define MAX_PCM_SUBSTREAMS 4
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#define MAX_MIDI_DEVICES 0
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#define HARMONY_SIZE 64
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#define BUF_SIZE PAGE_SIZE
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2005-10-22 10:42:38 +08:00
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#define MAX_BUFS 16
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2005-04-17 06:20:36 +08:00
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#define MAX_BUF_SIZE (MAX_BUFS * BUF_SIZE)
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#define PLAYBACK_BUFS MAX_BUFS
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#define RECORD_BUFS MAX_BUFS
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#define GRAVEYARD_BUFS 1
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#define GRAVEYARD_BUFSZ (GRAVEYARD_BUFS*BUF_SIZE)
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#define SILENCE_BUFS 1
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#define SILENCE_BUFSZ (SILENCE_BUFS*BUF_SIZE)
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#define HARMONY_ID 0x000
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#define HARMONY_RESET 0x004
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#define HARMONY_CNTL 0x008
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#define HARMONY_GAINCTL 0x00c
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#define HARMONY_PNXTADD 0x010
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#define HARMONY_PCURADD 0x014
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#define HARMONY_RNXTADD 0x018
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#define HARMONY_RCURADD 0x01c
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#define HARMONY_DSTATUS 0x020
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#define HARMONY_OV 0x024
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#define HARMONY_PIO 0x028
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#define HARMONY_DIAG 0x03c
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#define HARMONY_CNTL_C 0x80000000
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#define HARMONY_CNTL_ST 0x00000020
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#define HARMONY_CNTL_44100 0x00000015 /* HARMONY_SR_44KHZ */
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#define HARMONY_CNTL_8000 0x00000008 /* HARMONY_SR_8KHZ */
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#define HARMONY_DSTATUS_ID 0x00000000 /* interrupts off */
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#define HARMONY_DSTATUS_PN 0x00000200 /* playback fill */
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#define HARMONY_DSTATUS_RN 0x00000002 /* record fill */
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#define HARMONY_DSTATUS_IE 0x80000000 /* interrupts on */
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#define HARMONY_DF_16BIT_LINEAR 0x00000000
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#define HARMONY_DF_8BIT_ULAW 0x00000001
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#define HARMONY_DF_8BIT_ALAW 0x00000002
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#define HARMONY_SS_MONO 0x00000000
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#define HARMONY_SS_STEREO 0x00000001
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2005-10-22 10:42:38 +08:00
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#define HARMONY_GAIN_SILENCE 0x01F00FFF
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#define HARMONY_GAIN_DEFAULT 0x01F00FFF
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2005-04-17 06:20:36 +08:00
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2005-10-22 10:42:38 +08:00
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#define HARMONY_GAIN_HE_SHIFT 27 /* headphones enabled */
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2005-04-17 06:20:36 +08:00
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#define HARMONY_GAIN_HE_MASK (1 << HARMONY_GAIN_HE_SHIFT)
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2005-10-22 10:42:38 +08:00
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#define HARMONY_GAIN_LE_SHIFT 26 /* line-out enabled */
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2005-04-17 06:20:36 +08:00
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#define HARMONY_GAIN_LE_MASK (1 << HARMONY_GAIN_LE_SHIFT)
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2005-10-22 10:42:38 +08:00
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#define HARMONY_GAIN_SE_SHIFT 25 /* internal-speaker enabled */
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2005-04-17 06:20:36 +08:00
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#define HARMONY_GAIN_SE_MASK (1 << HARMONY_GAIN_SE_SHIFT)
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2005-10-22 10:42:38 +08:00
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#define HARMONY_GAIN_IS_SHIFT 24 /* input select - 0 for line, 1 for mic */
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2005-04-17 06:20:36 +08:00
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#define HARMONY_GAIN_IS_MASK (1 << HARMONY_GAIN_IS_SHIFT)
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2005-10-22 10:42:38 +08:00
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/* monitor attenuation */
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2005-04-17 06:20:36 +08:00
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#define HARMONY_GAIN_MA 0x0f
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#define HARMONY_GAIN_MA_SHIFT 20
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#define HARMONY_GAIN_MA_MASK (HARMONY_GAIN_MA << HARMONY_GAIN_MA_SHIFT)
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2005-10-22 10:42:38 +08:00
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/* input gain */
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2005-04-17 06:20:36 +08:00
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#define HARMONY_GAIN_IN 0x0f
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#define HARMONY_GAIN_LI_SHIFT 16
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#define HARMONY_GAIN_LI_MASK (HARMONY_GAIN_IN << HARMONY_GAIN_LI_SHIFT)
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#define HARMONY_GAIN_RI_SHIFT 12
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#define HARMONY_GAIN_RI_MASK (HARMONY_GAIN_IN << HARMONY_GAIN_RI_SHIFT)
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2005-10-22 10:42:38 +08:00
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/* output gain (master volume) */
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2005-04-17 06:20:36 +08:00
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#define HARMONY_GAIN_OUT 0x3f
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#define HARMONY_GAIN_LO_SHIFT 6
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#define HARMONY_GAIN_LO_MASK (HARMONY_GAIN_OUT << HARMONY_GAIN_LO_SHIFT)
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#define HARMONY_GAIN_RO_SHIFT 0
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#define HARMONY_GAIN_RO_MASK (HARMONY_GAIN_OUT << HARMONY_GAIN_RO_SHIFT)
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#define HARMONY_MAX_OUT (HARMONY_GAIN_RO_MASK >> HARMONY_GAIN_RO_SHIFT)
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#define HARMONY_MAX_IN (HARMONY_GAIN_RI_MASK >> HARMONY_GAIN_RI_SHIFT)
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#define HARMONY_MAX_MON (HARMONY_GAIN_MA_MASK >> HARMONY_GAIN_MA_SHIFT)
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#define HARMONY_SR_8KHZ 0x08
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#define HARMONY_SR_16KHZ 0x09
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#define HARMONY_SR_27KHZ 0x0A
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#define HARMONY_SR_32KHZ 0x0B
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#define HARMONY_SR_48KHZ 0x0E
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#define HARMONY_SR_9KHZ 0x0F
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#define HARMONY_SR_5KHZ 0x10
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#define HARMONY_SR_11KHZ 0x11
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#define HARMONY_SR_18KHZ 0x12
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#define HARMONY_SR_22KHZ 0x13
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#define HARMONY_SR_37KHZ 0x14
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#define HARMONY_SR_44KHZ 0x15
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#define HARMONY_SR_33KHZ 0x16
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#define HARMONY_SR_6KHZ 0x17
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#endif /* __HARMONY_H__ */
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