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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2012-07-11 07:23:43 +00:00
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#ifndef LINUX_BCMA_DRIVER_GMAC_CMN_H_
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#define LINUX_BCMA_DRIVER_GMAC_CMN_H_
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#include <linux/types.h>
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#define BCMA_GMAC_CMN_STAG0 0x000
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#define BCMA_GMAC_CMN_STAG1 0x004
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#define BCMA_GMAC_CMN_STAG2 0x008
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#define BCMA_GMAC_CMN_STAG3 0x00C
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#define BCMA_GMAC_CMN_PARSER_CTL 0x020
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#define BCMA_GMAC_CMN_MIB_MAX_LEN 0x024
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#define BCMA_GMAC_CMN_PHY_ACCESS 0x100
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#define BCMA_GMAC_CMN_PA_DATA_MASK 0x0000ffff
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#define BCMA_GMAC_CMN_PA_ADDR_MASK 0x001f0000
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#define BCMA_GMAC_CMN_PA_ADDR_SHIFT 16
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#define BCMA_GMAC_CMN_PA_REG_MASK 0x1f000000
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#define BCMA_GMAC_CMN_PA_REG_SHIFT 24
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#define BCMA_GMAC_CMN_PA_WRITE 0x20000000
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#define BCMA_GMAC_CMN_PA_START 0x40000000
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#define BCMA_GMAC_CMN_PHY_CTL 0x104
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#define BCMA_GMAC_CMN_PC_EPA_MASK 0x0000001f
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#define BCMA_GMAC_CMN_PC_MCT_MASK 0x007f0000
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#define BCMA_GMAC_CMN_PC_MCT_SHIFT 16
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#define BCMA_GMAC_CMN_PC_MTE 0x00800000
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#define BCMA_GMAC_CMN_GMAC0_RGMII_CTL 0x110
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#define BCMA_GMAC_CMN_CFP_ACCESS 0x200
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#define BCMA_GMAC_CMN_CFP_TCAM_DATA0 0x210
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#define BCMA_GMAC_CMN_CFP_TCAM_DATA1 0x214
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#define BCMA_GMAC_CMN_CFP_TCAM_DATA2 0x218
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#define BCMA_GMAC_CMN_CFP_TCAM_DATA3 0x21C
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#define BCMA_GMAC_CMN_CFP_TCAM_DATA4 0x220
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#define BCMA_GMAC_CMN_CFP_TCAM_DATA5 0x224
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#define BCMA_GMAC_CMN_CFP_TCAM_DATA6 0x228
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#define BCMA_GMAC_CMN_CFP_TCAM_DATA7 0x22C
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#define BCMA_GMAC_CMN_CFP_TCAM_MASK0 0x230
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#define BCMA_GMAC_CMN_CFP_TCAM_MASK1 0x234
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#define BCMA_GMAC_CMN_CFP_TCAM_MASK2 0x238
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#define BCMA_GMAC_CMN_CFP_TCAM_MASK3 0x23C
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#define BCMA_GMAC_CMN_CFP_TCAM_MASK4 0x240
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#define BCMA_GMAC_CMN_CFP_TCAM_MASK5 0x244
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#define BCMA_GMAC_CMN_CFP_TCAM_MASK6 0x248
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#define BCMA_GMAC_CMN_CFP_TCAM_MASK7 0x24C
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#define BCMA_GMAC_CMN_CFP_ACTION_DATA 0x250
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#define BCMA_GMAC_CMN_TCAM_BIST_CTL 0x2A0
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#define BCMA_GMAC_CMN_TCAM_BIST_STATUS 0x2A4
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#define BCMA_GMAC_CMN_TCAM_CMP_STATUS 0x2A8
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#define BCMA_GMAC_CMN_TCAM_DISABLE 0x2AC
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#define BCMA_GMAC_CMN_TCAM_TEST_CTL 0x2F0
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#define BCMA_GMAC_CMN_UDF_0_A3_A0 0x300
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#define BCMA_GMAC_CMN_UDF_0_A7_A4 0x304
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#define BCMA_GMAC_CMN_UDF_0_A8 0x308
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#define BCMA_GMAC_CMN_UDF_1_A3_A0 0x310
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#define BCMA_GMAC_CMN_UDF_1_A7_A4 0x314
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#define BCMA_GMAC_CMN_UDF_1_A8 0x318
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#define BCMA_GMAC_CMN_UDF_2_A3_A0 0x320
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#define BCMA_GMAC_CMN_UDF_2_A7_A4 0x324
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#define BCMA_GMAC_CMN_UDF_2_A8 0x328
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#define BCMA_GMAC_CMN_UDF_0_B3_B0 0x330
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#define BCMA_GMAC_CMN_UDF_0_B7_B4 0x334
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#define BCMA_GMAC_CMN_UDF_0_B8 0x338
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#define BCMA_GMAC_CMN_UDF_1_B3_B0 0x340
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#define BCMA_GMAC_CMN_UDF_1_B7_B4 0x344
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#define BCMA_GMAC_CMN_UDF_1_B8 0x348
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#define BCMA_GMAC_CMN_UDF_2_B3_B0 0x350
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#define BCMA_GMAC_CMN_UDF_2_B7_B4 0x354
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#define BCMA_GMAC_CMN_UDF_2_B8 0x358
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#define BCMA_GMAC_CMN_UDF_0_C3_C0 0x360
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#define BCMA_GMAC_CMN_UDF_0_C7_C4 0x364
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#define BCMA_GMAC_CMN_UDF_0_C8 0x368
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#define BCMA_GMAC_CMN_UDF_1_C3_C0 0x370
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#define BCMA_GMAC_CMN_UDF_1_C7_C4 0x374
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#define BCMA_GMAC_CMN_UDF_1_C8 0x378
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#define BCMA_GMAC_CMN_UDF_2_C3_C0 0x380
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#define BCMA_GMAC_CMN_UDF_2_C7_C4 0x384
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#define BCMA_GMAC_CMN_UDF_2_C8 0x388
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#define BCMA_GMAC_CMN_UDF_0_D3_D0 0x390
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#define BCMA_GMAC_CMN_UDF_0_D7_D4 0x394
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#define BCMA_GMAC_CMN_UDF_0_D11_D8 0x394
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struct bcma_drv_gmac_cmn {
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struct bcma_device *core;
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/* Drivers accessing BCMA_GMAC_CMN_PHY_ACCESS and
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* BCMA_GMAC_CMN_PHY_CTL need to take that mutex first. */
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struct mutex phy_mutex;
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};
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/* Register access */
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#define gmac_cmn_read16(gc, offset) bcma_read16((gc)->core, offset)
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#define gmac_cmn_read32(gc, offset) bcma_read32((gc)->core, offset)
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#define gmac_cmn_write16(gc, offset, val) bcma_write16((gc)->core, offset, val)
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#define gmac_cmn_write32(gc, offset, val) bcma_write32((gc)->core, offset, val)
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#endif /* LINUX_BCMA_DRIVER_GMAC_CMN_H_ */
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