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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2011-02-26 20:08:36 +08:00
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/*
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* PKUnity UNIGFX Registers
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*/
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#define UDE_BASE (PKUNITY_UNIGFX_BASE + 0x1400)
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#define UGE_BASE (PKUNITY_UNIGFX_BASE + 0x0000)
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/*
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* command reg for UNIGFX DE
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*/
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/*
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* control reg UDE_CFG
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_CFG (UDE_BASE + 0x0000)
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2011-02-26 20:08:36 +08:00
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/*
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* framebuffer start address reg UDE_FSA
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_FSA (UDE_BASE + 0x0004)
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2011-02-26 20:08:36 +08:00
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/*
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* line size reg UDE_LS
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_LS (UDE_BASE + 0x0008)
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2011-02-26 20:08:36 +08:00
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/*
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* pitch size reg UDE_PS
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_PS (UDE_BASE + 0x000C)
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2011-02-26 20:08:36 +08:00
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/*
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* horizontal active time reg UDE_HAT
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_HAT (UDE_BASE + 0x0010)
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2011-02-26 20:08:36 +08:00
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/*
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* horizontal blank time reg UDE_HBT
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_HBT (UDE_BASE + 0x0014)
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2011-02-26 20:08:36 +08:00
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/*
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* horizontal sync time reg UDE_HST
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_HST (UDE_BASE + 0x0018)
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2011-02-26 20:08:36 +08:00
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/*
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* vertival active time reg UDE_VAT
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_VAT (UDE_BASE + 0x001C)
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2011-02-26 20:08:36 +08:00
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/*
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* vertival blank time reg UDE_VBT
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_VBT (UDE_BASE + 0x0020)
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2011-02-26 20:08:36 +08:00
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/*
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* vertival sync time reg UDE_VST
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_VST (UDE_BASE + 0x0024)
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2011-02-26 20:08:36 +08:00
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/*
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* cursor position UDE_CXY
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_CXY (UDE_BASE + 0x0028)
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2011-02-26 20:08:36 +08:00
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/*
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* cursor front color UDE_CC0
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_CC0 (UDE_BASE + 0x002C)
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2011-02-26 20:08:36 +08:00
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/*
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* cursor background color UDE_CC1
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_CC1 (UDE_BASE + 0x0030)
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2011-02-26 20:08:36 +08:00
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/*
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* video position UDE_VXY
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_VXY (UDE_BASE + 0x0034)
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2011-02-26 20:08:36 +08:00
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/*
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* video start address reg UDE_VSA
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_VSA (UDE_BASE + 0x0040)
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2011-02-26 20:08:36 +08:00
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/*
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* video size reg UDE_VS
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*/
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2011-03-04 18:07:48 +08:00
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#define UDE_VS (UDE_BASE + 0x004C)
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2011-02-26 20:08:36 +08:00
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/*
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* command reg for UNIGFX GE
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*/
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/*
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* src xy reg UGE_SRCXY
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_SRCXY (UGE_BASE + 0x0000)
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2011-02-26 20:08:36 +08:00
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/*
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* dst xy reg UGE_DSTXY
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_DSTXY (UGE_BASE + 0x0004)
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2011-02-26 20:08:36 +08:00
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/*
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* pitch reg UGE_PITCH
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_PITCH (UGE_BASE + 0x0008)
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2011-02-26 20:08:36 +08:00
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/*
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* src start reg UGE_SRCSTART
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_SRCSTART (UGE_BASE + 0x000C)
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2011-02-26 20:08:36 +08:00
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/*
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* dst start reg UGE_DSTSTART
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_DSTSTART (UGE_BASE + 0x0010)
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2011-02-26 20:08:36 +08:00
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/*
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* width height reg UGE_WIDHEIGHT
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_WIDHEIGHT (UGE_BASE + 0x0014)
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2011-02-26 20:08:36 +08:00
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/*
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* rop alpah reg UGE_ROPALPHA
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_ROPALPHA (UGE_BASE + 0x0018)
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2011-02-26 20:08:36 +08:00
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/*
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* front color UGE_FCOLOR
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_FCOLOR (UGE_BASE + 0x001C)
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2011-02-26 20:08:36 +08:00
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/*
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* background color UGE_BCOLOR
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_BCOLOR (UGE_BASE + 0x0020)
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2011-02-26 20:08:36 +08:00
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/*
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* src color key for high value UGE_SCH
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_SCH (UGE_BASE + 0x0024)
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2011-02-26 20:08:36 +08:00
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/*
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* dst color key for high value UGE_DCH
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_DCH (UGE_BASE + 0x0028)
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2011-02-26 20:08:36 +08:00
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/*
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* src color key for low value UGE_SCL
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_SCL (UGE_BASE + 0x002C)
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2011-02-26 20:08:36 +08:00
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/*
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* dst color key for low value UGE_DCL
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_DCL (UGE_BASE + 0x0030)
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2011-02-26 20:08:36 +08:00
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/*
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* clip 0 reg UGE_CLIP0
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_CLIP0 (UGE_BASE + 0x0034)
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2011-02-26 20:08:36 +08:00
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/*
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* clip 1 reg UGE_CLIP1
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_CLIP1 (UGE_BASE + 0x0038)
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2011-02-26 20:08:36 +08:00
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/*
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* command reg UGE_COMMAND
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_COMMAND (UGE_BASE + 0x003C)
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2011-02-26 20:08:36 +08:00
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/*
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* pattern 0 UGE_P0
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*/
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2011-03-04 18:07:48 +08:00
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#define UGE_P0 (UGE_BASE + 0x0040)
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#define UGE_P1 (UGE_BASE + 0x0044)
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#define UGE_P2 (UGE_BASE + 0x0048)
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#define UGE_P3 (UGE_BASE + 0x004C)
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#define UGE_P4 (UGE_BASE + 0x0050)
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#define UGE_P5 (UGE_BASE + 0x0054)
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#define UGE_P6 (UGE_BASE + 0x0058)
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#define UGE_P7 (UGE_BASE + 0x005C)
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#define UGE_P8 (UGE_BASE + 0x0060)
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#define UGE_P9 (UGE_BASE + 0x0064)
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#define UGE_P10 (UGE_BASE + 0x0068)
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#define UGE_P11 (UGE_BASE + 0x006C)
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#define UGE_P12 (UGE_BASE + 0x0070)
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#define UGE_P13 (UGE_BASE + 0x0074)
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#define UGE_P14 (UGE_BASE + 0x0078)
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#define UGE_P15 (UGE_BASE + 0x007C)
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#define UGE_P16 (UGE_BASE + 0x0080)
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#define UGE_P17 (UGE_BASE + 0x0084)
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#define UGE_P18 (UGE_BASE + 0x0088)
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#define UGE_P19 (UGE_BASE + 0x008C)
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#define UGE_P20 (UGE_BASE + 0x0090)
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#define UGE_P21 (UGE_BASE + 0x0094)
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#define UGE_P22 (UGE_BASE + 0x0098)
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#define UGE_P23 (UGE_BASE + 0x009C)
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#define UGE_P24 (UGE_BASE + 0x00A0)
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#define UGE_P25 (UGE_BASE + 0x00A4)
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#define UGE_P26 (UGE_BASE + 0x00A8)
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#define UGE_P27 (UGE_BASE + 0x00AC)
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#define UGE_P28 (UGE_BASE + 0x00B0)
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#define UGE_P29 (UGE_BASE + 0x00B4)
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#define UGE_P30 (UGE_BASE + 0x00B8)
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#define UGE_P31 (UGE_BASE + 0x00BC)
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2011-02-26 20:08:36 +08:00
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#define UDE_CFG_DST_MASK FMASK(2, 8)
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#define UDE_CFG_DST8 FIELD(0x0, 2, 8)
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#define UDE_CFG_DST16 FIELD(0x1, 2, 8)
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#define UDE_CFG_DST24 FIELD(0x2, 2, 8)
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#define UDE_CFG_DST32 FIELD(0x3, 2, 8)
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/*
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* GDEN enable UDE_CFG_GDEN_ENABLE
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*/
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#define UDE_CFG_GDEN_ENABLE FIELD(1, 1, 3)
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/*
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* VDEN enable UDE_CFG_VDEN_ENABLE
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*/
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#define UDE_CFG_VDEN_ENABLE FIELD(1, 1, 4)
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/*
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* CDEN enable UDE_CFG_CDEN_ENABLE
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*/
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#define UDE_CFG_CDEN_ENABLE FIELD(1, 1, 5)
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/*
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* TIMEUP enable UDE_CFG_TIMEUP_ENABLE
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*/
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#define UDE_CFG_TIMEUP_ENABLE FIELD(1, 1, 6)
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