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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2008-05-20 06:53:02 +07:00
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/*
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2005-04-17 05:20:36 +07:00
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* linux/arch/sparc/kernel/setup.c
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*
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* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
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* Copyright (C) 2000 Anton Blanchard (anton@samba.org)
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*/
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/stddef.h>
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#include <linux/unistd.h>
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#include <linux/ptrace.h>
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#include <linux/slab.h>
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#include <linux/initrd.h>
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#include <asm/smp.h>
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#include <linux/user.h>
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2006-07-10 18:44:13 +07:00
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#include <linux/screen_info.h>
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2005-04-17 05:20:36 +07:00
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#include <linux/delay.h>
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#include <linux/fs.h>
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#include <linux/seq_file.h>
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#include <linux/syscalls.h>
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#include <linux/kdev_t.h>
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#include <linux/major.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/console.h>
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#include <linux/spinlock.h>
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#include <linux/root_dev.h>
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2006-06-20 14:28:33 +07:00
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#include <linux/cpu.h>
|
2007-05-08 14:27:03 +07:00
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#include <linux/kdebug.h>
|
2011-07-19 02:57:46 +07:00
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#include <linux/export.h>
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2012-05-26 04:20:08 +07:00
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#include <linux/start_kernel.h>
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2018-11-02 06:07:23 +07:00
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#include <uapi/linux/mount.h>
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2005-04-17 05:20:36 +07:00
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#include <asm/io.h>
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#include <asm/processor.h>
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#include <asm/oplib.h>
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#include <asm/page.h>
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#include <asm/pgtable.h>
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#include <asm/traps.h>
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#include <asm/vaddrs.h>
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#include <asm/mbus.h>
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#include <asm/idprom.h>
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#include <asm/cpudata.h>
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#include <asm/setup.h>
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2012-03-29 00:30:03 +07:00
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#include <asm/cacheflush.h>
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2012-05-26 04:20:09 +07:00
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#include <asm/sections.h>
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2005-04-17 05:20:36 +07:00
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2008-12-07 15:02:08 +07:00
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#include "kernel.h"
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2005-04-17 05:20:36 +07:00
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struct screen_info screen_info = {
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0, 0, /* orig-x, orig-y */
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0, /* unused */
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0, /* orig-video-page */
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0, /* orig-video-mode */
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128, /* orig-video-cols */
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0,0,0, /* ega_ax, ega_bx, ega_cx */
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54, /* orig-video-lines */
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0, /* orig-video-isVGA */
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16 /* orig-video-points */
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};
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/* Typing sync at the prom prompt calls the function pointed to by
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* romvec->pv_synchook which I set to the following function.
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* This should sync all filesystems and return, for now it just
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* prints out pretty messages and returns.
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*/
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/* Pretty sick eh? */
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2008-06-06 01:40:58 +07:00
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static void prom_sync_me(void)
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2005-04-17 05:20:36 +07:00
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{
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unsigned long prom_tbr, flags;
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/* XXX Badly broken. FIX! - Anton */
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local_irq_save(flags);
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__asm__ __volatile__("rd %%tbr, %0\n\t" : "=r" (prom_tbr));
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__asm__ __volatile__("wr %0, 0x0, %%tbr\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t" : : "r" (&trapbase));
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prom_printf("PROM SYNC COMMAND...\n");
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2017-02-23 06:46:16 +07:00
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show_free_areas(0, NULL);
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2011-11-11 06:56:46 +07:00
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if (!is_idle_task(current)) {
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2005-04-17 05:20:36 +07:00
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local_irq_enable();
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2018-03-15 04:35:11 +07:00
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ksys_sync();
|
2005-04-17 05:20:36 +07:00
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local_irq_disable();
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}
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prom_printf("Returning to prom\n");
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__asm__ __volatile__("wr %0, 0x0, %%tbr\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t" : : "r" (prom_tbr));
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local_irq_restore(flags);
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}
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2008-06-06 01:40:58 +07:00
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static unsigned int boot_flags __initdata = 0;
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2005-04-17 05:20:36 +07:00
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#define BOOTME_DEBUG 0x1
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/* Exported for mm/init.c:paging_init. */
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unsigned long cmdline_memory_size __initdata = 0;
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2011-04-21 11:20:23 +07:00
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/* which CPU booted us (0xff = not set) */
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unsigned char boot_cpu_id = 0xff; /* 0xff will make it into DATA section... */
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2005-04-17 05:20:36 +07:00
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static void
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2016-03-11 06:21:43 +07:00
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prom_console_write(struct console *con, const char *s, unsigned int n)
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2005-04-17 05:20:36 +07:00
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{
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prom_write(s, n);
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}
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2011-04-22 05:47:35 +07:00
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static struct console prom_early_console = {
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.name = "earlyprom",
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2005-04-17 05:20:36 +07:00
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.write = prom_console_write,
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2011-04-22 05:47:35 +07:00
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.flags = CON_PRINTBUFFER | CON_BOOT,
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2005-04-17 05:20:36 +07:00
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.index = -1,
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};
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/*
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* Process kernel command line switches that are specific to the
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* SPARC or that require special low-level processing.
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*/
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static void __init process_switch(char c)
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{
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switch (c) {
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case 'd':
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boot_flags |= BOOTME_DEBUG;
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break;
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case 's':
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break;
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case 'h':
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prom_printf("boot_flags_init: Halt!\n");
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prom_halt();
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break;
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case 'p':
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2011-09-22 02:48:06 +07:00
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prom_early_console.flags &= ~CON_BOOT;
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2005-04-17 05:20:36 +07:00
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break;
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default:
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printk("Unknown boot switch (-%c)\n", c);
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break;
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}
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}
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static void __init boot_flags_init(char *commands)
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{
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while (*commands) {
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/* Move to the start of the next "argument". */
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2017-05-03 22:28:48 +07:00
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while (*commands == ' ')
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2005-04-17 05:20:36 +07:00
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commands++;
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/* Process any command switches, otherwise skip it. */
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if (*commands == '\0')
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break;
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if (*commands == '-') {
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commands++;
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while (*commands && *commands != ' ')
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process_switch(*commands++);
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continue;
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}
|
2007-07-21 06:59:26 +07:00
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if (!strncmp(commands, "mem=", 4)) {
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2005-04-17 05:20:36 +07:00
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/*
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* "mem=XXX[kKmM] overrides the PROM-reported
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* memory size.
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*/
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cmdline_memory_size = simple_strtoul(commands + 4,
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&commands, 0);
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if (*commands == 'K' || *commands == 'k') {
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cmdline_memory_size <<= 10;
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commands++;
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} else if (*commands=='M' || *commands=='m') {
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cmdline_memory_size <<= 20;
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commands++;
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}
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}
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while (*commands && *commands != ' ')
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commands++;
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}
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}
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extern unsigned short root_flags;
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extern unsigned short root_dev;
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extern unsigned short ram_flags;
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#define RAMDISK_IMAGE_START_MASK 0x07FF
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#define RAMDISK_PROMPT_FLAG 0x8000
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#define RAMDISK_LOAD_FLAG 0x4000
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extern int root_mountflags;
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char reboot_command[COMMAND_LINE_SIZE];
|
2009-01-09 07:58:05 +07:00
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|
2012-05-14 13:09:04 +07:00
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struct cpuid_patch_entry {
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unsigned int addr;
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unsigned int sun4d[3];
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unsigned int leon[3];
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};
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extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end;
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static void __init per_cpu_patch(void)
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{
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struct cpuid_patch_entry *p;
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if (sparc_cpu_model == sun4m) {
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/* Nothing to do, this is what the unpatched code
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* targets.
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*/
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return;
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}
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p = &__cpuid_patch;
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while (p < &__cpuid_patch_end) {
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unsigned long addr = p->addr;
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unsigned int *insns;
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switch (sparc_cpu_model) {
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case sun4d:
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insns = &p->sun4d[0];
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break;
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case sparc_leon:
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insns = &p->leon[0];
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break;
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default:
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prom_printf("Unknown cpu type, halting.\n");
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prom_halt();
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}
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*(unsigned int *) (addr + 0) = insns[0];
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2012-05-20 22:27:53 +07:00
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flushi(addr + 0);
|
2012-05-14 13:09:04 +07:00
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*(unsigned int *) (addr + 4) = insns[1];
|
2012-05-20 22:27:53 +07:00
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flushi(addr + 4);
|
2012-05-14 13:09:04 +07:00
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*(unsigned int *) (addr + 8) = insns[2];
|
2012-05-20 22:27:53 +07:00
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flushi(addr + 8);
|
2012-05-20 22:24:20 +07:00
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p++;
|
2012-05-14 13:09:04 +07:00
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}
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}
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|
2012-05-26 04:20:09 +07:00
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struct leon_1insn_patch_entry {
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unsigned int addr;
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unsigned int insn;
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};
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|
2005-04-17 05:20:36 +07:00
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enum sparc_cpu sparc_cpu_model;
|
2009-01-09 07:58:05 +07:00
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EXPORT_SYMBOL(sparc_cpu_model);
|
2005-04-17 05:20:36 +07:00
|
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|
2012-05-26 04:20:09 +07:00
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static __init void leon_patch(void)
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|
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{
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struct leon_1insn_patch_entry *start = (void *)__leon_1insn_patch;
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struct leon_1insn_patch_entry *end = (void *)__leon_1insn_patch_end;
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/* Default instruction is leon - no patching */
|
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if (sparc_cpu_model == sparc_leon)
|
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return;
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|
while (start < end) {
|
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unsigned long addr = start->addr;
|
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|
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*(unsigned int *)(addr) = start->insn;
|
|
|
|
flushi(addr);
|
|
|
|
|
|
|
|
start++;
|
|
|
|
}
|
|
|
|
}
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2012-05-26 04:20:09 +07:00
|
|
|
struct tt_entry *sparc_ttable;
|
2014-04-22 02:39:28 +07:00
|
|
|
static struct pt_regs fake_swapper_regs;
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2012-05-26 04:20:08 +07:00
|
|
|
/* Called from head_32.S - before we have setup anything
|
|
|
|
* in the kernel. Be very careful with what you do here.
|
|
|
|
*/
|
|
|
|
void __init sparc32_start_kernel(struct linux_romvec *rp)
|
|
|
|
{
|
|
|
|
prom_init(rp);
|
2012-05-26 04:20:09 +07:00
|
|
|
|
|
|
|
/* Set sparc_cpu_model */
|
|
|
|
sparc_cpu_model = sun_unknown;
|
|
|
|
if (!strcmp(&cputypval[0], "sun4m"))
|
|
|
|
sparc_cpu_model = sun4m;
|
|
|
|
if (!strcmp(&cputypval[0], "sun4s"))
|
|
|
|
sparc_cpu_model = sun4m; /* CP-1200 with PROM 2.30 -E */
|
|
|
|
if (!strcmp(&cputypval[0], "sun4d"))
|
|
|
|
sparc_cpu_model = sun4d;
|
|
|
|
if (!strcmp(&cputypval[0], "sun4e"))
|
|
|
|
sparc_cpu_model = sun4e;
|
|
|
|
if (!strcmp(&cputypval[0], "sun4u"))
|
|
|
|
sparc_cpu_model = sun4u;
|
|
|
|
if (!strncmp(&cputypval[0], "leon" , 4))
|
|
|
|
sparc_cpu_model = sparc_leon;
|
|
|
|
|
|
|
|
leon_patch();
|
2012-05-26 04:20:08 +07:00
|
|
|
start_kernel();
|
|
|
|
}
|
|
|
|
|
2005-04-17 05:20:36 +07:00
|
|
|
void __init setup_arch(char **cmdline_p)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
unsigned long highest_paddr;
|
|
|
|
|
2016-04-23 00:41:05 +07:00
|
|
|
sparc_ttable = &trapbase;
|
2005-04-17 05:20:36 +07:00
|
|
|
|
|
|
|
/* Initialize PROM console and command line. */
|
|
|
|
*cmdline_p = prom_getbootargs();
|
2013-06-09 15:57:58 +07:00
|
|
|
strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
|
2008-09-11 13:40:32 +07:00
|
|
|
parse_early_param();
|
2005-04-17 05:20:36 +07:00
|
|
|
|
2011-04-22 05:47:35 +07:00
|
|
|
boot_flags_init(*cmdline_p);
|
|
|
|
|
|
|
|
register_console(&prom_early_console);
|
|
|
|
|
2005-04-17 05:20:36 +07:00
|
|
|
switch(sparc_cpu_model) {
|
|
|
|
case sun4m:
|
2018-12-11 19:11:09 +07:00
|
|
|
pr_info("ARCH: SUN4M\n");
|
2005-04-17 05:20:36 +07:00
|
|
|
break;
|
|
|
|
case sun4d:
|
2018-12-11 19:11:09 +07:00
|
|
|
pr_info("ARCH: SUN4D\n");
|
2005-04-17 05:20:36 +07:00
|
|
|
break;
|
|
|
|
case sun4e:
|
2018-12-11 19:11:09 +07:00
|
|
|
pr_info("ARCH: SUN4E\n");
|
2005-04-17 05:20:36 +07:00
|
|
|
break;
|
|
|
|
case sun4u:
|
2018-12-11 19:11:09 +07:00
|
|
|
pr_info("ARCH: SUN4U\n");
|
2005-04-17 05:20:36 +07:00
|
|
|
break;
|
2009-08-17 07:13:31 +07:00
|
|
|
case sparc_leon:
|
2018-12-11 19:11:09 +07:00
|
|
|
pr_info("ARCH: LEON\n");
|
2009-08-17 07:13:31 +07:00
|
|
|
break;
|
2005-04-17 05:20:36 +07:00
|
|
|
default:
|
2018-12-11 19:11:09 +07:00
|
|
|
pr_info("ARCH: UNKNOWN!\n");
|
2005-04-17 05:20:36 +07:00
|
|
|
break;
|
2011-06-03 21:45:23 +07:00
|
|
|
}
|
2005-04-17 05:20:36 +07:00
|
|
|
|
|
|
|
#ifdef CONFIG_DUMMY_CONSOLE
|
|
|
|
conswitchp = &dummy_con;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
idprom_init();
|
|
|
|
load_mmu();
|
|
|
|
|
|
|
|
phys_base = 0xffffffffUL;
|
|
|
|
highest_paddr = 0UL;
|
|
|
|
for (i = 0; sp_banks[i].num_bytes != 0; i++) {
|
|
|
|
unsigned long top;
|
|
|
|
|
|
|
|
if (sp_banks[i].base_addr < phys_base)
|
|
|
|
phys_base = sp_banks[i].base_addr;
|
|
|
|
top = sp_banks[i].base_addr +
|
|
|
|
sp_banks[i].num_bytes;
|
|
|
|
if (highest_paddr < top)
|
|
|
|
highest_paddr = top;
|
|
|
|
}
|
|
|
|
pfn_base = phys_base >> PAGE_SHIFT;
|
|
|
|
|
|
|
|
if (!root_flags)
|
|
|
|
root_mountflags &= ~MS_RDONLY;
|
|
|
|
ROOT_DEV = old_decode_dev(root_dev);
|
2006-06-23 04:47:14 +07:00
|
|
|
#ifdef CONFIG_BLK_DEV_RAM
|
2005-04-17 05:20:36 +07:00
|
|
|
rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK;
|
|
|
|
rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0);
|
|
|
|
rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
prom_setsync(prom_sync_me);
|
|
|
|
|
2014-04-22 02:39:28 +07:00
|
|
|
if((boot_flags & BOOTME_DEBUG) && (linux_dbvec != NULL) &&
|
2005-04-17 05:20:36 +07:00
|
|
|
((*(short *)linux_dbvec) != -1)) {
|
|
|
|
printk("Booted under KADB. Syncing trap table.\n");
|
|
|
|
(*(linux_dbvec->teach_debugger))();
|
|
|
|
}
|
|
|
|
|
|
|
|
init_task.thread.kregs = &fake_swapper_regs;
|
|
|
|
|
2012-05-20 22:27:53 +07:00
|
|
|
/* Run-time patch instructions to match the cpu model */
|
2012-05-14 13:09:04 +07:00
|
|
|
per_cpu_patch();
|
|
|
|
|
2012-05-20 22:27:53 +07:00
|
|
|
paging_init();
|
|
|
|
|
2006-08-25 14:46:02 +07:00
|
|
|
smp_setup_cpu_possible_map();
|
2005-04-17 05:20:36 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
extern int stop_a_enabled;
|
|
|
|
|
|
|
|
void sun_do_break(void)
|
|
|
|
{
|
|
|
|
if (!stop_a_enabled)
|
|
|
|
return;
|
|
|
|
|
|
|
|
printk("\n");
|
|
|
|
flush_user_windows();
|
|
|
|
|
|
|
|
prom_cmdline();
|
|
|
|
}
|
2009-01-09 07:58:05 +07:00
|
|
|
EXPORT_SYMBOL(sun_do_break);
|
2005-04-17 05:20:36 +07:00
|
|
|
|
|
|
|
int stop_a_enabled = 1;
|
2006-06-20 14:28:33 +07:00
|
|
|
|
|
|
|
static int __init topology_init(void)
|
|
|
|
{
|
|
|
|
int i, ncpus, err;
|
|
|
|
|
|
|
|
/* Count the number of physically present processors in
|
|
|
|
* the machine, even on uniprocessor, so that /proc/cpuinfo
|
|
|
|
* output is consistent with 2.4.x
|
|
|
|
*/
|
|
|
|
ncpus = 0;
|
|
|
|
while (!cpu_find_by_instance(ncpus, NULL, NULL))
|
|
|
|
ncpus++;
|
|
|
|
ncpus_probed = ncpus;
|
|
|
|
|
|
|
|
err = 0;
|
|
|
|
for_each_online_cpu(i) {
|
|
|
|
struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
|
|
|
|
if (!p)
|
|
|
|
err = -ENOMEM;
|
|
|
|
else
|
2006-06-29 16:24:27 +07:00
|
|
|
register_cpu(p, i);
|
2006-06-20 14:28:33 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
subsys_initcall(topology_init);
|