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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2005-04-17 05:20:36 +07:00
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#ifndef _PARISC_PDC_H
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#define _PARISC_PDC_H
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2012-10-17 03:28:05 +07:00
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#include <uapi/asm/pdc.h>
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2008-07-29 09:52:18 +07:00
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2007-10-18 14:03:34 +07:00
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#if !defined(__ASSEMBLY__)
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2017-08-20 15:52:22 +07:00
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extern int parisc_narrow_firmware;
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2005-04-17 05:20:36 +07:00
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extern int pdc_type;
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2017-05-12 03:24:15 +07:00
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extern unsigned long parisc_cell_num; /* cell number the CPU runs on (PAT) */
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extern unsigned long parisc_cell_loc; /* cell location of CPU (PAT) */
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2005-04-17 05:20:36 +07:00
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/* Values for pdc_type */
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#define PDC_TYPE_ILLEGAL -1
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#define PDC_TYPE_PAT 0 /* 64-bit PAT-PDC */
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#define PDC_TYPE_SYSTEM_MAP 1 /* 32-bit, but supports PDC_SYSTEM_MAP */
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#define PDC_TYPE_SNAKE 2 /* Doesn't support SYSTEM_MAP */
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2007-10-18 14:03:34 +07:00
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void pdc_console_init(void); /* in pdc_console.c */
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void pdc_console_restart(void);
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void setup_pdc(void); /* in inventory.c */
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/* wrapper-functions from pdc.c */
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int pdc_add_valid(unsigned long address);
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2017-09-18 02:15:09 +07:00
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int pdc_instr(unsigned int *instr);
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2007-10-18 14:03:34 +07:00
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int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
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int pdc_chassis_disp(unsigned long disp);
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int pdc_chassis_warn(unsigned long *warn);
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int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info);
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2008-07-29 11:09:22 +07:00
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int pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info);
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2007-10-18 14:03:34 +07:00
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int pdc_iodc_read(unsigned long *actcnt, unsigned long hpa, unsigned int index,
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void *iodc_data, unsigned int iodc_data_size);
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int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info,
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struct pdc_module_path *mod_path, long mod_index);
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int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info,
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long mod_index, long addr_index);
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int pdc_model_info(struct pdc_model *model);
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int pdc_model_sysmodel(char *name);
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int pdc_model_cpuid(unsigned long *cpu_id);
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int pdc_model_versions(unsigned long *versions, int id);
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int pdc_model_capabilities(unsigned long *capabilities);
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int pdc_cache_info(struct pdc_cache_info *cache);
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int pdc_spaceid_bits(unsigned long *space_bits);
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#ifndef CONFIG_PA20
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int pdc_btlb_info(struct pdc_btlb_info *btlb);
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int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path);
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#endif /* !CONFIG_PA20 */
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int pdc_lan_station_id(char *lan_addr, unsigned long net_hpa);
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int pdc_stable_read(unsigned long staddr, void *memaddr, unsigned long count);
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int pdc_stable_write(unsigned long staddr, void *memaddr, unsigned long count);
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int pdc_stable_get_size(unsigned long *size);
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int pdc_stable_verify_contents(void);
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int pdc_stable_initialize(void);
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int pdc_pci_irt_size(unsigned long *num_entries, unsigned long hpa);
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int pdc_pci_irt(unsigned long num_entries, unsigned long hpa, void *tbl);
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int pdc_get_initiator(struct hardware_path *, struct pdc_initiator *);
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int pdc_tod_read(struct pdc_tod *tod);
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int pdc_tod_set(unsigned long sec, unsigned long usec);
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2017-05-12 03:24:15 +07:00
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void pdc_pdt_init(void); /* in pdt.c */
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int pdc_mem_pdt_info(struct pdc_mem_retinfo *rinfo);
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int pdc_mem_pdt_read_entries(struct pdc_mem_read_pdt *rpdt_read,
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unsigned long *pdt_entries_ptr);
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2007-10-18 14:03:34 +07:00
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#ifdef CONFIG_64BIT
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int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
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struct pdc_memory_table *tbl, unsigned long entries);
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#endif
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void set_firmware_width(void);
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2008-07-29 11:09:22 +07:00
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void set_firmware_width_unlocked(void);
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2007-10-18 14:03:34 +07:00
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int pdc_do_firm_test_reset(unsigned long ftc_bitmap);
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int pdc_do_reset(void);
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int pdc_soft_power_info(unsigned long *power_reg);
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int pdc_soft_power_button(int sw_control);
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void pdc_io_reset(void);
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void pdc_io_reset_devices(void);
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int pdc_iodc_getc(void);
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2008-02-19 14:34:34 +07:00
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int pdc_iodc_print(const unsigned char *str, unsigned count);
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2007-10-18 14:03:34 +07:00
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void pdc_emergency_unlock(void);
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int pdc_sti_call(unsigned long func, unsigned long flags,
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unsigned long inptr, unsigned long outputr,
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unsigned long glob_cfg);
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static inline char * os_id_to_string(u16 os_id) {
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switch(os_id) {
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case OS_ID_NONE: return "No OS";
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case OS_ID_HPUX: return "HP-UX";
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case OS_ID_MPEXL: return "MPE-iX";
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case OS_ID_OSF: return "OSF";
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case OS_ID_HPRT: return "HP-RT";
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case OS_ID_NOVEL: return "Novell Netware";
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case OS_ID_LINUX: return "Linux";
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default: return "Unknown";
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}
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}
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#endif /* !defined(__ASSEMBLY__) */
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2005-04-17 05:20:36 +07:00
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#endif /* _PARISC_PDC_H */
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