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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#define DSP_RESET (devc->base + 0x6)
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#define DSP_READ (devc->base + 0xA)
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#define DSP_WRITE (devc->base + 0xC)
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#define DSP_COMMAND (devc->base + 0xC)
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#define DSP_STATUS (devc->base + 0xC)
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#define DSP_DATA_AVAIL (devc->base + 0xE)
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#define DSP_DATA_AVL16 (devc->base + 0xF)
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#define MIXER_ADDR (devc->base + 0x4)
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#define MIXER_DATA (devc->base + 0x5)
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#define OPL3_LEFT (devc->base + 0x0)
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#define OPL3_RIGHT (devc->base + 0x2)
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#define OPL3_BOTH (devc->base + 0x8)
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/* DSP Commands */
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#define DSP_CMD_SPKON 0xD1
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#define DSP_CMD_SPKOFF 0xD3
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#define DSP_CMD_DMAON 0xD0
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#define DSP_CMD_DMAOFF 0xD4
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#define IMODE_NONE 0
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#define IMODE_OUTPUT PCM_ENABLE_OUTPUT
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#define IMODE_INPUT PCM_ENABLE_INPUT
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#define IMODE_INIT 3
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#define IMODE_MIDI 4
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#define NORMAL_MIDI 0
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#define UART_MIDI 1
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/*
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* Device models
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*/
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#define MDL_NONE 0
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#define MDL_SB1 1 /* SB1.0 or 1.5 */
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#define MDL_SB2 2 /* SB2.0 */
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#define MDL_SB201 3 /* SB2.01 */
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#define MDL_SBPRO 4 /* SB Pro */
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#define MDL_SB16 5 /* SB16/32/AWE */
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#define MDL_SBPNP 6 /* SB16/32/AWE PnP */
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#define MDL_JAZZ 10 /* Media Vision Jazz16 */
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#define MDL_SMW 11 /* Logitech SoundMan Wave (Jazz16) */
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#define MDL_ESS 12 /* ESS ES688 and ES1688 */
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#define MDL_AZTECH 13 /* Aztech Sound Galaxy family */
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#define MDL_ES1868MIDI 14 /* MIDI port of ESS1868 */
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#define MDL_AEDSP 15 /* Audio Excel DSP 16 */
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#define MDL_ESSPCI 16 /* ESS PCI card */
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#define MDL_YMPCI 17 /* Yamaha PCI sb in emulation */
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#define SUBMDL_ALS007 42 /* ALS-007 differs from SB16 only in mixer */
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/* register assignment */
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#define SUBMDL_ALS100 43 /* ALS-100 allows sampling rates of up */
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/* to 48kHz */
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/*
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* Config flags
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*/
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#define SB_NO_MIDI 0x00000001
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#define SB_NO_MIXER 0x00000002
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#define SB_NO_AUDIO 0x00000004
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#define SB_NO_RECORDING 0x00000008 /* No audio recording */
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#define SB_MIDI_ONLY (SB_NO_AUDIO|SB_NO_MIXER)
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#define SB_PCI_IRQ 0x00000010 /* PCI shared IRQ */
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struct mixer_def {
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unsigned int regno: 8;
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unsigned int bitoffs:4;
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unsigned int nbits:4;
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};
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typedef struct mixer_def mixer_tab[32][2];
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typedef struct mixer_def mixer_ent;
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struct sb_module_options
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{
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int esstype; /* ESS chip type */
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int acer; /* Do acer notebook init? */
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int sm_games; /* Logitech soundman games? */
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};
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typedef struct sb_devc {
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int dev;
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/* Hardware parameters */
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int *osp;
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int minor, major;
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int type;
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int model, submodel;
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int caps;
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# define SBCAP_STEREO 0x00000001
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# define SBCAP_16BITS 0x00000002
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/* Hardware resources */
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int base;
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int irq;
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int dma8, dma16;
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int pcibase; /* For ESS Maestro etc */
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/* State variables */
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int opened;
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/* new audio fields for full duplex support */
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int fullduplex;
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int duplex;
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int speed, bits, channels;
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volatile int irq_ok;
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volatile int intr_active, irq_mode;
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/* duplicate audio fields for full duplex support */
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volatile int intr_active_16, irq_mode_16;
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/* Mixer fields */
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int *levels;
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mixer_tab *iomap;
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size_t iomap_sz; /* number or records in the iomap table */
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int mixer_caps, recmask, outmask, supported_devices;
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int supported_rec_devices, supported_out_devices;
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int my_mixerdev;
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int sbmixnum;
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/* Audio fields */
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unsigned long trg_buf;
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int trigger_bits;
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int trg_bytes;
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int trg_intrflag;
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int trg_restart;
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/* duplicate audio fields for full duplex support */
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unsigned long trg_buf_16;
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int trigger_bits_16;
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int trg_bytes_16;
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int trg_intrflag_16;
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int trg_restart_16;
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unsigned char tconst;
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/* MIDI fields */
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int my_mididev;
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int input_opened;
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int midi_broken;
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void (*midi_input_intr) (int dev, unsigned char data);
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void *midi_irq_cookie; /* IRQ cookie for the midi */
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spinlock_t lock;
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struct sb_module_options sbmo; /* Module options */
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} sb_devc;
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/*
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* PCI card types
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*/
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#define SB_PCI_ESSMAESTRO 1 /* ESS Maestro Legacy */
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#define SB_PCI_YAMAHA 2 /* Yamaha Legacy */
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/*
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* Functions
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*/
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int sb_dsp_command (sb_devc *devc, unsigned char val);
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int sb_dsp_get_byte(sb_devc * devc);
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int sb_dsp_reset (sb_devc *devc);
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void sb_setmixer (sb_devc *devc, unsigned int port, unsigned int value);
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unsigned int sb_getmixer (sb_devc *devc, unsigned int port);
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int sb_dsp_detect (struct address_info *hw_config, int pci, int pciio, struct sb_module_options *sbmo);
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int sb_dsp_init (struct address_info *hw_config, struct module *owner);
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void sb_dsp_unload(struct address_info *hw_config, int sbmpu);
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int sb_mixer_init(sb_devc *devc, struct module *owner);
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void sb_mixer_unload(sb_devc *devc);
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void sb_mixer_set_stereo (sb_devc *devc, int mode);
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void smw_mixer_init(sb_devc *devc);
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void sb_dsp_midi_init (sb_devc *devc, struct module *owner);
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void sb_audio_init (sb_devc *devc, char *name, struct module *owner);
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void sb_midi_interrupt (sb_devc *devc);
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void sb_chgmixer (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val);
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int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right);
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int sb_audio_open(int dev, int mode);
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void sb_audio_close(int dev);
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/* From sb_common.c */
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void sb_dsp_disable_midi(int port);
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int probe_sbmpu (struct address_info *hw_config, struct module *owner);
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void unload_sbmpu (struct address_info *hw_config);
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void unload_sb16(struct address_info *hw_info);
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void unload_sb16midi(struct address_info *hw_info);
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