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 14:07:57 +00:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-16 22:20:36 +00:00
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/*
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2012-07-20 09:15:04 +00:00
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* Copyright IBM Corp. 1999, 2012
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2010-02-26 21:37:43 +00:00
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* Author(s): Hartmut Penner <hp@de.ibm.com>,
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* Martin Schwidefsky <schwidefsky@de.ibm.com>,
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* Denis Joseph Barrow,
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2005-04-16 22:20:36 +00:00
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*/
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#ifndef _ASM_S390_LOWCORE_H
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#define _ASM_S390_LOWCORE_H
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#include <linux/types.h>
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2010-02-26 21:37:43 +00:00
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#include <asm/ptrace.h>
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#include <asm/cpu.h>
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2014-10-06 15:57:43 +00:00
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#include <asm/types.h>
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2005-04-16 22:20:36 +00:00
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2010-02-26 21:37:43 +00:00
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#define LC_ORDER 1
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#define LC_PAGES 2
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2015-12-31 09:29:00 +00:00
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struct lowcore {
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2010-02-26 21:37:43 +00:00
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__u8 pad_0x0000[0x0014-0x0000]; /* 0x0000 */
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__u32 ipl_parmblock_ptr; /* 0x0014 */
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2009-03-26 14:24:44 +00:00
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__u8 pad_0x0018[0x0080-0x0018]; /* 0x0018 */
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__u32 ext_params; /* 0x0080 */
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2012-03-11 15:59:25 +00:00
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__u16 ext_cpu_addr; /* 0x0084 */
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2009-03-26 14:24:44 +00:00
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__u16 ext_int_code; /* 0x0086 */
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__u16 svc_ilc; /* 0x0088 */
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__u16 svc_code; /* 0x008a */
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__u16 pgm_ilc; /* 0x008c */
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__u16 pgm_code; /* 0x008e */
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__u32 data_exc_code; /* 0x0090 */
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__u16 mon_class_num; /* 0x0094 */
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2014-02-26 15:32:46 +00:00
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__u8 per_code; /* 0x0096 */
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__u8 per_atmid; /* 0x0097 */
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2010-05-17 08:00:00 +00:00
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__u64 per_address; /* 0x0098 */
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2009-03-26 14:24:44 +00:00
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__u8 exc_access_id; /* 0x00a0 */
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__u8 per_access_id; /* 0x00a1 */
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__u8 op_access_id; /* 0x00a2 */
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2014-02-10 09:55:37 +00:00
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__u8 ar_mode_id; /* 0x00a3 */
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2009-03-26 14:24:44 +00:00
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__u8 pad_0x00a4[0x00a8-0x00a4]; /* 0x00a4 */
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2010-05-17 08:00:00 +00:00
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__u64 trans_exc_code; /* 0x00a8 */
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__u64 monitor_code; /* 0x00b0 */
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2009-03-26 14:24:44 +00:00
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__u16 subchannel_id; /* 0x00b8 */
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__u16 subchannel_nr; /* 0x00ba */
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__u32 io_int_parm; /* 0x00bc */
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__u32 io_int_word; /* 0x00c0 */
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__u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */
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__u32 stfl_fac_list; /* 0x00c8 */
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__u8 pad_0x00cc[0x00e8-0x00cc]; /* 0x00cc */
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2015-10-06 12:45:35 +00:00
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__u64 mcck_interruption_code; /* 0x00e8 */
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2009-03-26 14:24:44 +00:00
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__u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */
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__u32 external_damage_code; /* 0x00f4 */
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2010-05-17 08:00:00 +00:00
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__u64 failing_storage_address; /* 0x00f8 */
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2010-02-26 21:37:43 +00:00
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__u8 pad_0x0100[0x0110-0x0100]; /* 0x0100 */
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__u64 breaking_event_addr; /* 0x0110 */
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__u8 pad_0x0118[0x0120-0x0118]; /* 0x0118 */
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2009-03-26 14:24:44 +00:00
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psw_t restart_old_psw; /* 0x0120 */
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psw_t external_old_psw; /* 0x0130 */
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psw_t svc_old_psw; /* 0x0140 */
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psw_t program_old_psw; /* 0x0150 */
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psw_t mcck_old_psw; /* 0x0160 */
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psw_t io_old_psw; /* 0x0170 */
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__u8 pad_0x0180[0x01a0-0x0180]; /* 0x0180 */
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psw_t restart_psw; /* 0x01a0 */
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psw_t external_new_psw; /* 0x01b0 */
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psw_t svc_new_psw; /* 0x01c0 */
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psw_t program_new_psw; /* 0x01d0 */
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psw_t mcck_new_psw; /* 0x01e0 */
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psw_t io_new_psw; /* 0x01f0 */
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2011-12-27 10:27:15 +00:00
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/* Save areas. */
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__u64 save_area_sync[8]; /* 0x0200 */
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__u64 save_area_async[8]; /* 0x0240 */
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__u64 save_area_restart[1]; /* 0x0280 */
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2014-04-15 10:55:07 +00:00
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/* CPU flags. */
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__u64 cpu_flags; /* 0x0288 */
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2011-12-27 10:27:15 +00:00
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/* Return psws. */
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psw_t return_psw; /* 0x0290 */
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psw_t return_mcck_psw; /* 0x02a0 */
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2009-03-26 14:24:44 +00:00
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/* CPU accounting and timing values. */
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2011-12-27 10:27:15 +00:00
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__u64 sync_enter_timer; /* 0x02b0 */
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__u64 async_enter_timer; /* 0x02b8 */
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__u64 mcck_enter_timer; /* 0x02c0 */
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__u64 exit_timer; /* 0x02c8 */
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__u64 user_timer; /* 0x02d0 */
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2017-01-05 17:11:49 +00:00
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__u64 guest_timer; /* 0x02d8 */
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__u64 system_timer; /* 0x02e0 */
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__u64 hardirq_timer; /* 0x02e8 */
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__u64 softirq_timer; /* 0x02f0 */
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__u64 steal_timer; /* 0x02f8 */
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2019-03-06 11:31:21 +00:00
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__u64 avg_steal_timer; /* 0x0300 */
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__u64 last_update_timer; /* 0x0308 */
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__u64 last_update_clock; /* 0x0310 */
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__u64 int_clock; /* 0x0318*/
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__u64 mcck_clock; /* 0x0320 */
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__u64 clock_comparator; /* 0x0328 */
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__u64 boot_clock[2]; /* 0x0330 */
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2009-03-26 14:24:44 +00:00
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/* Current process. */
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2019-03-06 11:31:21 +00:00
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__u64 current_task; /* 0x0340 */
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__u64 kernel_stack; /* 0x0348 */
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2012-03-11 15:59:26 +00:00
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2017-09-12 14:37:33 +00:00
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/* Interrupt, DAT-off and restartstack. */
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2019-03-06 11:31:21 +00:00
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__u64 async_stack; /* 0x0350 */
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__u64 nodat_stack; /* 0x0358 */
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__u64 restart_stack; /* 0x0360 */
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2009-03-26 14:24:44 +00:00
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2012-03-11 15:59:26 +00:00
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/* Restart function and parameter. */
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2019-03-06 11:31:21 +00:00
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__u64 restart_fn; /* 0x0368 */
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__u64 restart_data; /* 0x0370 */
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__u64 restart_source; /* 0x0378 */
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2009-03-26 14:24:44 +00:00
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/* Address space pointer. */
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2019-03-06 11:31:21 +00:00
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__u64 kernel_asce; /* 0x0380 */
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__u64 user_asce; /* 0x0388 */
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__u64 vdso_asce; /* 0x0390 */
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2015-10-06 16:06:15 +00:00
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/*
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* The lpp and current_pid fields form a
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* 64-bit value that is set as program
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* parameter with the LPP instruction.
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*/
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2019-03-06 11:31:21 +00:00
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__u32 lpp; /* 0x0398 */
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__u32 current_pid; /* 0x039c */
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2009-03-26 14:24:44 +00:00
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/* SMP info area */
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2019-03-06 11:31:21 +00:00
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__u32 cpu_nr; /* 0x03a0 */
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__u32 softirq_pending; /* 0x03a4 */
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2019-04-15 08:35:54 +00:00
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__s32 preempt_count; /* 0x03a8 */
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2019-03-06 11:31:21 +00:00
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__u32 spinlock_lockval; /* 0x03ac */
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__u32 spinlock_index; /* 0x03b0 */
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__u32 fpu_flags; /* 0x03b4 */
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__u64 percpu_offset; /* 0x03b8 */
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__u64 vdso_per_cpu_data; /* 0x03c0 */
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__u64 machine_flags; /* 0x03c8 */
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__u64 gmap; /* 0x03d0 */
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__u8 pad_0x03d8[0x0400-0x03d8]; /* 0x03d8 */
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2018-01-26 11:46:47 +00:00
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/* br %r1 trampoline */
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__u16 br_r1_trampoline; /* 0x0400 */
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__u8 pad_0x0402[0x0e00-0x0402]; /* 0x0402 */
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2009-03-26 14:24:44 +00:00
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/*
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* 0xe00 contains the address of the IPL Parameter Information
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* block. Dump tools need IPIB for IPL after dump.
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* Note: do not change the position of any fields in 0x0e00-0x0f00
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*/
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__u64 ipib; /* 0x0e00 */
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__u32 ipib_checksum; /* 0x0e08 */
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2012-06-05 07:59:52 +00:00
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__u64 vmcore_info; /* 0x0e0c */
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2012-03-11 15:59:34 +00:00
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__u8 pad_0x0e14[0x0e18-0x0e14]; /* 0x0e14 */
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__u64 os_info; /* 0x0e18 */
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__u8 pad_0x0e20[0x0f00-0x0e20]; /* 0x0e20 */
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2010-10-25 14:10:51 +00:00
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/* Extended facility list */
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2018-01-16 06:03:44 +00:00
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__u64 stfle_fac_list[16]; /* 0x0f00 */
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__u64 alt_stfle_fac_list[16]; /* 0x0f80 */
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2014-10-06 15:53:53 +00:00
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__u8 pad_0x1000[0x11b0-0x1000]; /* 0x1000 */
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2016-01-26 13:10:34 +00:00
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/* Pointer to the machine check extended save area */
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__u64 mcesad; /* 0x11b0 */
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2009-03-26 14:24:44 +00:00
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/* 64 bit extparam used for pfault/diag 250: defined by architecture */
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__u64 ext_params2; /* 0x11B8 */
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__u8 pad_0x11c0[0x1200-0x11C0]; /* 0x11C0 */
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/* CPU register save area: defined by architecture */
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__u64 floating_pt_save_area[16]; /* 0x1200 */
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__u64 gpregs_save_area[16]; /* 0x1280 */
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2010-02-26 21:37:43 +00:00
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psw_t psw_save_area; /* 0x1300 */
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2009-03-26 14:24:44 +00:00
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__u8 pad_0x1310[0x1318-0x1310]; /* 0x1310 */
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__u32 prefixreg_save_area; /* 0x1318 */
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__u32 fpt_creg_save_area; /* 0x131c */
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__u8 pad_0x1320[0x1324-0x1320]; /* 0x1320 */
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__u32 tod_progreg_save_area; /* 0x1324 */
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__u32 cpu_timer_save_area[2]; /* 0x1328 */
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__u32 clock_comp_save_area[2]; /* 0x1330 */
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__u8 pad_0x1338[0x1340-0x1338]; /* 0x1338 */
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__u32 access_regs_save_area[16]; /* 0x1340 */
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__u64 cregs_save_area[16]; /* 0x1380 */
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2012-07-31 09:03:04 +00:00
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__u8 pad_0x1400[0x1800-0x1400]; /* 0x1400 */
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/* Transaction abort diagnostic block */
|
|
|
|
|
__u8 pgm_tdb[256]; /* 0x1800 */
|
2016-01-26 13:10:34 +00:00
|
|
|
__u8 pad_0x1900[0x2000-0x1900]; /* 0x1900 */
|
2018-06-28 11:12:27 +00:00
|
|
|
} __packed __aligned(8192);
|
2010-02-26 21:37:43 +00:00
|
|
|
|
2015-12-31 09:29:00 +00:00
|
|
|
#define S390_lowcore (*((struct lowcore *) 0))
|
2010-02-26 21:37:43 +00:00
|
|
|
|
2015-12-31 09:29:00 +00:00
|
|
|
extern struct lowcore *lowcore_ptr[];
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-11-09 05:34:42 +00:00
|
|
|
static inline void set_prefix(__u32 address)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2017-11-13 15:37:33 +00:00
|
|
|
asm volatile("spx %0" : : "Q" (address) : "memory");
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
2006-12-04 14:40:26 +00:00
|
|
|
static inline __u32 store_prefix(void)
|
|
|
|
|
{
|
|
|
|
|
__u32 address;
|
|
|
|
|
|
2017-11-13 15:37:33 +00:00
|
|
|
asm volatile("stpx %0" : "=Q" (address));
|
2006-12-04 14:40:26 +00:00
|
|
|
return address;
|
|
|
|
|
}
|
|
|
|
|
|
2010-02-26 21:37:43 +00:00
|
|
|
#endif /* _ASM_S390_LOWCORE_H */
|