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 08:07:57 -06:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2010-10-07 12:20:02 -06:00
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#ifndef _SPEAKUP_H
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#define _SPEAKUP_H
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#include "spk_types.h"
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#include "i18n.h"
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#define SPEAKUP_VERSION "3.1.6"
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#define KEY_MAP_VER 119
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#define SHIFT_TBL_SIZE 64
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#define MAX_DESC_LEN 72
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#define TOGGLE_0 .u.n = {NULL, 0, 0, 1, 0, 0, NULL }
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#define TOGGLE_1 .u.n = {NULL, 1, 0, 1, 0, 0, NULL }
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#define MAXVARLEN 15
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#define SYNTH_OK 0x0001
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#define B_ALPHA 0x0002
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#define ALPHA 0x0003
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#define B_CAP 0x0004
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#define A_CAP 0x0007
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#define B_NUM 0x0008
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#define NUM 0x0009
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#define ALPHANUM (B_ALPHA | B_NUM)
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#define SOME 0x0010
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#define MOST 0x0020
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#define PUNC 0x0040
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#define A_PUNC 0x0041
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#define B_WDLM 0x0080
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#define WDLM 0x0081
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#define B_EXNUM 0x0100
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#define CH_RPT 0x0200
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#define B_CTL 0x0400
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#define A_CTL (B_CTL + SYNTH_OK)
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2010-10-07 12:20:02 -06:00
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#define B_SYM 0x0800
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#define B_CAPSYM (B_CAP | B_SYM)
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2010-10-07 12:20:02 -06:00
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2017-03-04 07:01:56 -07:00
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/* FIXME: u16 */
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2017-03-21 05:42:31 -06:00
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#define IS_WDLM(x) (spk_chartab[((u_char)x)] & B_WDLM)
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#define IS_CHAR(x, type) (spk_chartab[((u_char)x)] & type)
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#define IS_TYPE(x, type) ((spk_chartab[((u_char)x)] & type) == type)
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2010-10-07 12:20:02 -06:00
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2015-08-10 15:51:32 -06:00
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int speakup_thread(void *data);
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void spk_reset_default_chars(void);
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void spk_reset_default_chartab(void);
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void synth_start(void);
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2010-10-15 21:13:34 -06:00
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void synth_insert_next_index(int sent_num);
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2013-01-01 18:37:40 -07:00
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void spk_reset_index_count(int sc);
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void spk_get_index_count(int *linecount, int *sentcount);
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2015-08-10 15:51:32 -06:00
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int spk_set_key_info(const u_char *key_info, u_char *k_buffer);
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char *spk_strlwr(char *s);
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char *spk_s2uchar(char *start, char *dest);
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int speakup_kobj_init(void);
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void speakup_kobj_exit(void);
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int spk_chartab_get_value(char *keyword);
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void speakup_register_var(struct var_t *var);
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void speakup_unregister_var(enum var_id_t var_id);
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struct st_var_header *spk_get_var_header(enum var_id_t var_id);
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struct st_var_header *spk_var_header_by_name(const char *name);
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struct punc_var_t *spk_get_punc_var(enum var_id_t var_id);
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int spk_set_num_var(int val, struct st_var_header *var, int how);
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int spk_set_string_var(const char *page, struct st_var_header *var, int len);
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int spk_set_mask_bits(const char *input, const int which, const int how);
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extern special_func spk_special_handler;
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int spk_handle_help(struct vc_data *vc, u_char type, u_char ch, u_short key);
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int synth_init(char *name);
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void synth_release(void);
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2010-10-07 12:20:02 -06:00
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2015-08-10 15:51:32 -06:00
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void spk_do_flush(void);
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void speakup_start_ttys(void);
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2017-03-04 07:01:55 -07:00
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void synth_buffer_add(u16 ch);
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void synth_buffer_clear(void);
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void speakup_clear_selection(void);
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int speakup_set_selection(struct tty_struct *tty);
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2019-04-17 06:21:14 -06:00
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void speakup_cancel_selection(void);
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2015-08-10 15:51:32 -06:00
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int speakup_paste_selection(struct tty_struct *tty);
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void speakup_cancel_paste(void);
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void speakup_register_devsynth(void);
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void speakup_unregister_devsynth(void);
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void synth_write(const char *buf, size_t count);
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int synth_supports_indexing(void);
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extern struct vc_data *spk_sel_cons;
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extern unsigned short spk_xs, spk_ys, spk_xe, spk_ye; /* our region points */
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extern wait_queue_head_t speakup_event;
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extern struct kobject *speakup_kobj;
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extern struct task_struct *speakup_task;
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extern const u_char spk_key_defaults[];
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/* Protect speakup synthesizer list */
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extern struct mutex spk_mutex;
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extern struct st_spk_t *speakup_console[];
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extern struct spk_synth *synth;
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extern char spk_pitch_buff[];
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extern u_char *spk_our_keys[];
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extern short spk_punc_masks[];
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2018-05-01 18:56:10 -06:00
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extern char spk_str_caps_start[], spk_str_caps_stop[], spk_str_pause[];
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extern bool spk_paused;
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2013-01-01 18:37:40 -07:00
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extern const struct st_bits_data spk_punc_info[];
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extern u_char spk_key_buf[600];
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extern char *spk_characters[];
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extern char *spk_default_chars[];
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extern u_short spk_chartab[];
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extern int spk_no_intr, spk_say_ctrl, spk_say_word_ctl, spk_punc_level;
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extern int spk_reading_punc, spk_attrib_bleep, spk_bleeps;
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extern int spk_bleep_time, spk_bell_pos;
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extern int spk_spell_delay, spk_key_echo;
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extern short spk_punc_mask;
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extern short spk_pitch_shift, synth_flags;
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extern bool spk_quiet_boot;
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extern char *synth_name;
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extern struct bleep spk_unprocessed_sound;
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2010-10-07 12:20:02 -06:00
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/* Prototypes from fakekey.c. */
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int speakup_add_virtual_keyboard(void);
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void speakup_remove_virtual_keyboard(void);
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void speakup_fake_down_arrow(void);
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bool speakup_fake_key_pressed(void);
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#endif
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