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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2008-03-26 12:51:40 +08:00
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#ifndef _ENTRY_H
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#define _ENTRY_H
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2008-03-26 15:46:21 +08:00
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#include <linux/kernel.h>
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2008-03-26 15:19:43 +08:00
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#include <linux/types.h>
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2008-03-26 15:46:21 +08:00
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#include <linux/init.h>
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2008-03-26 12:51:40 +08:00
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2008-12-08 17:08:24 +08:00
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/* irq */
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2014-05-17 05:25:51 +08:00
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void handler_irq(int irq, struct pt_regs *regs);
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2008-12-08 17:08:24 +08:00
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2008-12-08 17:04:59 +08:00
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#ifdef CONFIG_SPARC32
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/* traps */
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2014-05-17 05:25:51 +08:00
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void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
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void do_illegal_instruction(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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void do_priv_instruction(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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void do_fpd_trap(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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void do_fpe_trap(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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void handle_tag_overflow(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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void handle_watchpoint(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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void handle_reg_access(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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void handle_cp_disabled(struct pt_regs *regs, unsigned long pc,
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2008-12-08 17:04:59 +08:00
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unsigned long npc, unsigned long psr);
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2014-05-17 05:25:51 +08:00
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void handle_cp_exception(struct pt_regs *regs, unsigned long pc,
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unsigned long npc, unsigned long psr);
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2008-12-08 17:04:59 +08:00
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/* entry.S */
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2014-05-17 05:25:51 +08:00
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void fpsave(unsigned long *fpregs, unsigned long *fsr,
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void *fpqueue, unsigned long *fpqdepth);
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void fpload(unsigned long *fpregs, unsigned long *fsr);
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2008-12-08 17:04:59 +08:00
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#else /* CONFIG_SPARC32 */
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2011-11-18 14:44:58 +08:00
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#include <asm/trap_block.h>
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2011-07-30 00:42:07 +08:00
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struct popc_3insn_patch_entry {
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unsigned int addr;
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unsigned int insns[3];
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};
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extern struct popc_3insn_patch_entry __popc_3insn_patch,
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__popc_3insn_patch_end;
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2011-08-03 11:23:34 +08:00
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struct popc_6insn_patch_entry {
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unsigned int addr;
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unsigned int insns[6];
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};
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extern struct popc_6insn_patch_entry __popc_6insn_patch,
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__popc_6insn_patch_end;
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2012-10-28 14:00:41 +08:00
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struct pause_patch_entry {
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unsigned int addr;
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unsigned int insns[3];
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};
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2012-10-29 04:04:47 +08:00
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extern struct pause_patch_entry __pause_3insn_patch,
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__pause_3insn_patch_end;
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2012-10-28 14:00:41 +08:00
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2014-05-17 05:25:51 +08:00
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void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *,
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struct sun4v_1insn_patch_entry *);
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void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *,
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struct sun4v_2insn_patch_entry *);
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2015-05-28 00:00:46 +08:00
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void sun_m7_patch_2insn_range(struct sun4v_2insn_patch_entry *,
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struct sun4v_2insn_patch_entry *);
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2008-03-26 12:51:40 +08:00
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extern unsigned int dcache_parity_tl1_occurred;
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extern unsigned int icache_parity_tl1_occurred;
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2014-05-17 05:25:51 +08:00
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asmlinkage void sparc_breakpoint(struct pt_regs *regs);
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void timer_interrupt(int irq, struct pt_regs *regs);
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void do_notify_resume(struct pt_regs *regs,
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unsigned long orig_i0,
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unsigned long thread_info_flags);
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asmlinkage int syscall_trace_enter(struct pt_regs *regs);
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asmlinkage void syscall_trace_leave(struct pt_regs *regs);
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void bad_trap_tl1(struct pt_regs *regs, long lvl);
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void do_fpieee(struct pt_regs *regs);
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void do_fpother(struct pt_regs *regs);
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void do_tof(struct pt_regs *regs);
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void do_div0(struct pt_regs *regs);
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void do_illegal_instruction(struct pt_regs *regs);
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void mem_address_unaligned(struct pt_regs *regs,
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unsigned long sfar,
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unsigned long sfsr);
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void sun4v_do_mna(struct pt_regs *regs,
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unsigned long addr,
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unsigned long type_ctx);
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void do_privop(struct pt_regs *regs);
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void do_privact(struct pt_regs *regs);
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void do_cee(struct pt_regs *regs);
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void do_div0_tl1(struct pt_regs *regs);
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void do_fpieee_tl1(struct pt_regs *regs);
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void do_fpother_tl1(struct pt_regs *regs);
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void do_ill_tl1(struct pt_regs *regs);
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void do_irq_tl1(struct pt_regs *regs);
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void do_lddfmna_tl1(struct pt_regs *regs);
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void do_stdfmna_tl1(struct pt_regs *regs);
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void do_paw(struct pt_regs *regs);
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void do_paw_tl1(struct pt_regs *regs);
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void do_vaw(struct pt_regs *regs);
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void do_vaw_tl1(struct pt_regs *regs);
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void do_tof_tl1(struct pt_regs *regs);
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void do_getpsr(struct pt_regs *regs);
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void spitfire_insn_access_exception(struct pt_regs *regs,
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unsigned long sfsr,
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unsigned long sfar);
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void spitfire_insn_access_exception_tl1(struct pt_regs *regs,
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unsigned long sfsr,
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unsigned long sfar);
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void spitfire_data_access_exception(struct pt_regs *regs,
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unsigned long sfsr,
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unsigned long sfar);
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void spitfire_data_access_exception_tl1(struct pt_regs *regs,
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unsigned long sfsr,
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unsigned long sfar);
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void spitfire_access_error(struct pt_regs *regs,
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unsigned long status_encoded,
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unsigned long afar);
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void cheetah_fecc_handler(struct pt_regs *regs,
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unsigned long afsr,
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unsigned long afar);
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void cheetah_cee_handler(struct pt_regs *regs,
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unsigned long afsr,
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unsigned long afar);
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void cheetah_deferred_handler(struct pt_regs *regs,
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unsigned long afsr,
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unsigned long afar);
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void cheetah_plus_parity_error(int type, struct pt_regs *regs);
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void sun4v_insn_access_exception(struct pt_regs *regs,
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unsigned long addr,
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unsigned long type_ctx);
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void sun4v_insn_access_exception_tl1(struct pt_regs *regs,
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unsigned long addr,
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unsigned long type_ctx);
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void sun4v_data_access_exception(struct pt_regs *regs,
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unsigned long addr,
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unsigned long type_ctx);
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void sun4v_data_access_exception_tl1(struct pt_regs *regs,
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unsigned long addr,
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unsigned long type_ctx);
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void sun4v_resum_error(struct pt_regs *regs,
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unsigned long offset);
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void sun4v_resum_overflow(struct pt_regs *regs);
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void sun4v_nonresum_error(struct pt_regs *regs,
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unsigned long offset);
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void sun4v_nonresum_overflow(struct pt_regs *regs);
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2008-03-26 15:19:43 +08:00
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extern unsigned long sun4v_err_itlb_vaddr;
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extern unsigned long sun4v_err_itlb_ctx;
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extern unsigned long sun4v_err_itlb_pte;
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extern unsigned long sun4v_err_itlb_error;
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2014-05-17 05:25:51 +08:00
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void sun4v_itlb_error_report(struct pt_regs *regs, int tl);
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2008-03-26 15:19:43 +08:00
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extern unsigned long sun4v_err_dtlb_vaddr;
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extern unsigned long sun4v_err_dtlb_ctx;
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extern unsigned long sun4v_err_dtlb_pte;
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extern unsigned long sun4v_err_dtlb_error;
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2014-05-17 05:25:51 +08:00
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void sun4v_dtlb_error_report(struct pt_regs *regs, int tl);
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void hypervisor_tlbop_error(unsigned long err,
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unsigned long op);
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void hypervisor_tlbop_error_xcall(unsigned long err,
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unsigned long op);
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2008-03-26 15:19:43 +08:00
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/* WARNING: The error trap handlers in assembly know the precise
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* layout of the following structure.
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*
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* C-level handlers in traps.c use this information to log the
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* error and then determine how to recover (if possible).
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*/
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struct cheetah_err_info {
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/*0x00*/u64 afsr;
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/*0x08*/u64 afar;
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/* D-cache state */
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/*0x10*/u64 dcache_data[4]; /* The actual data */
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/*0x30*/u64 dcache_index; /* D-cache index */
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/*0x38*/u64 dcache_tag; /* D-cache tag/valid */
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/*0x40*/u64 dcache_utag; /* D-cache microtag */
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/*0x48*/u64 dcache_stag; /* D-cache snooptag */
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/* I-cache state */
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/*0x50*/u64 icache_data[8]; /* The actual insns + predecode */
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/*0x90*/u64 icache_index; /* I-cache index */
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/*0x98*/u64 icache_tag; /* I-cache phys tag */
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/*0xa0*/u64 icache_utag; /* I-cache microtag */
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/*0xa8*/u64 icache_stag; /* I-cache snooptag */
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/*0xb0*/u64 icache_upper; /* I-cache upper-tag */
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/*0xb8*/u64 icache_lower; /* I-cache lower-tag */
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/* E-cache state */
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/*0xc0*/u64 ecache_data[4]; /* 32 bytes from staging registers */
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/*0xe0*/u64 ecache_index; /* E-cache index */
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/*0xe8*/u64 ecache_tag; /* E-cache tag/state */
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/*0xf0*/u64 __pad[32 - 30];
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};
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#define CHAFSR_INVALID ((u64)-1L)
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/* This is allocated at boot time based upon the largest hardware
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* cpu ID in the system. We allocate two entries per cpu, one for
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* TL==0 logging and one for TL >= 1 logging.
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*/
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extern struct cheetah_err_info *cheetah_error_log;
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2008-03-26 15:37:51 +08:00
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/* UPA nodes send interrupt packet to UltraSparc with first data reg
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* value low 5 (7 on Starfire) bits holding the IRQ identifier being
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* delivered. We must translate this into a non-vector IRQ so we can
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* set the softint on this cpu.
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*
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* To make processing these packets efficient and race free we use
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* an array of irq buckets below. The interrupt vector handler in
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* entry.S feeds incoming packets into per-cpu pil-indexed lists.
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*
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* If you make changes to ino_bucket, please update hand coded assembler
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* of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
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*/
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struct ino_bucket {
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/*0x00*/unsigned long __irq_chain_pa;
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2011-01-22 19:32:19 +08:00
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/* Interrupt number assigned to this INO. */
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/*0x08*/unsigned int __irq;
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2008-03-26 15:37:51 +08:00
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/*0x0c*/unsigned int __pad;
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};
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extern struct ino_bucket *ivector_table;
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extern unsigned long ivector_table_pa;
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2014-05-17 05:25:51 +08:00
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void init_irqwork_curcpu(void);
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void sun4v_register_mondo_queues(int this_cpu);
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2008-03-26 15:37:51 +08:00
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2008-12-08 17:04:59 +08:00
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#endif /* CONFIG_SPARC32 */
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2008-03-26 12:51:40 +08:00
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#endif /* _ENTRY_H */
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