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 08:07:57 -06:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-16 16:20:36 -06:00
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#ifndef _MXSER_H
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#define _MXSER_H
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/*
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* Semi-public control interfaces
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*/
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2008-02-07 01:16:46 -07:00
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2005-04-16 16:20:36 -06:00
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/*
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* MOXA ioctls
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*/
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#define MOXA 0x400
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#define MOXA_GETDATACOUNT (MOXA + 23)
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#define MOXA_DIAGNOSE (MOXA + 50)
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#define MOXA_CHKPORTENABLE (MOXA + 60)
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#define MOXA_HighSpeedOn (MOXA + 61)
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#define MOXA_GET_MAJOR (MOXA + 63)
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#define MOXA_GETMSTATUS (MOXA + 65)
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#define MOXA_SET_OP_MODE (MOXA + 66)
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#define MOXA_GET_OP_MODE (MOXA + 67)
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#define RS232_MODE 0
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#define RS485_2WIRE_MODE 1
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#define RS422_MODE 2
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#define RS485_4WIRE_MODE 3
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#define OP_MODE_MASK 3
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#define MOXA_SDS_RSTICOUNTER (MOXA + 69)
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#define MOXA_ASPP_OQUEUE (MOXA + 70)
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#define MOXA_ASPP_MON (MOXA + 73)
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#define MOXA_ASPP_LSTATUS (MOXA + 74)
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#define MOXA_ASPP_MON_EXT (MOXA + 75)
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#define MOXA_SET_BAUD_METHOD (MOXA + 76)
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/* --------------------------------------------------- */
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#define NPPI_NOTIFY_PARITY 0x01
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#define NPPI_NOTIFY_FRAMING 0x02
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#define NPPI_NOTIFY_HW_OVERRUN 0x04
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#define NPPI_NOTIFY_SW_OVERRUN 0x08
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#define NPPI_NOTIFY_BREAK 0x10
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2008-02-07 01:16:46 -07:00
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#define NPPI_NOTIFY_CTSHOLD 0x01 /* Tx hold by CTS low */
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#define NPPI_NOTIFY_DSRHOLD 0x02 /* Tx hold by DSR low */
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#define NPPI_NOTIFY_XOFFHOLD 0x08 /* Tx hold by Xoff received */
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#define NPPI_NOTIFY_XOFFXENT 0x10 /* Xoff Sent */
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/* follow just for Moxa Must chip define. */
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/* */
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/* when LCR register (offset 0x03) write following value, */
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/* the Must chip will enter enchance mode. And write value */
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/* on EFR (offset 0x02) bit 6,7 to change bank. */
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#define MOXA_MUST_ENTER_ENCHANCE 0xBF
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2008-02-07 01:16:46 -07:00
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/* when enhance mode enable, access on general bank register */
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#define MOXA_MUST_GDL_REGISTER 0x07
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#define MOXA_MUST_GDL_MASK 0x7F
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#define MOXA_MUST_GDL_HAS_BAD_DATA 0x80
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2008-02-07 01:16:46 -07:00
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#define MOXA_MUST_LSR_RERR 0x80 /* error in receive FIFO */
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/* enchance register bank select and enchance mode setting register */
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/* when LCR register equal to 0xBF */
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#define MOXA_MUST_EFR_REGISTER 0x02
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/* enchance mode enable */
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#define MOXA_MUST_EFR_EFRB_ENABLE 0x10
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2008-02-07 01:16:46 -07:00
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/* enchance reister bank set 0, 1, 2 */
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#define MOXA_MUST_EFR_BANK0 0x00
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#define MOXA_MUST_EFR_BANK1 0x40
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#define MOXA_MUST_EFR_BANK2 0x80
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#define MOXA_MUST_EFR_BANK3 0xC0
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#define MOXA_MUST_EFR_BANK_MASK 0xC0
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2008-02-07 01:16:46 -07:00
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/* set XON1 value register, when LCR=0xBF and change to bank0 */
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#define MOXA_MUST_XON1_REGISTER 0x04
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2008-02-07 01:16:46 -07:00
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/* set XON2 value register, when LCR=0xBF and change to bank0 */
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#define MOXA_MUST_XON2_REGISTER 0x05
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2008-02-07 01:16:46 -07:00
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/* set XOFF1 value register, when LCR=0xBF and change to bank0 */
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#define MOXA_MUST_XOFF1_REGISTER 0x06
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2008-02-07 01:16:46 -07:00
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/* set XOFF2 value register, when LCR=0xBF and change to bank0 */
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#define MOXA_MUST_XOFF2_REGISTER 0x07
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#define MOXA_MUST_RBRTL_REGISTER 0x04
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#define MOXA_MUST_RBRTH_REGISTER 0x05
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#define MOXA_MUST_RBRTI_REGISTER 0x06
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#define MOXA_MUST_THRTL_REGISTER 0x07
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#define MOXA_MUST_ENUM_REGISTER 0x04
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#define MOXA_MUST_HWID_REGISTER 0x05
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#define MOXA_MUST_ECR_REGISTER 0x06
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#define MOXA_MUST_CSR_REGISTER 0x07
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2008-02-07 01:16:46 -07:00
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/* good data mode enable */
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2005-04-16 16:20:36 -06:00
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#define MOXA_MUST_FCR_GDA_MODE_ENABLE 0x20
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2008-02-07 01:16:46 -07:00
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/* only good data put into RxFIFO */
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2005-04-16 16:20:36 -06:00
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#define MOXA_MUST_FCR_GDA_ONLY_ENABLE 0x10
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2008-02-07 01:16:46 -07:00
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/* enable CTS interrupt */
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2005-04-16 16:20:36 -06:00
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#define MOXA_MUST_IER_ECTSI 0x80
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2008-02-07 01:16:46 -07:00
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/* enable RTS interrupt */
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#define MOXA_MUST_IER_ERTSI 0x40
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2008-02-07 01:16:46 -07:00
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/* enable Xon/Xoff interrupt */
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#define MOXA_MUST_IER_XINT 0x20
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2008-02-07 01:16:46 -07:00
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/* enable GDA interrupt */
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#define MOXA_MUST_IER_EGDAI 0x10
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#define MOXA_MUST_RECV_ISR (UART_IER_RDI | MOXA_MUST_IER_EGDAI)
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2008-02-07 01:16:46 -07:00
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/* GDA interrupt pending */
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2005-04-16 16:20:36 -06:00
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#define MOXA_MUST_IIR_GDA 0x1C
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#define MOXA_MUST_IIR_RDA 0x04
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#define MOXA_MUST_IIR_RTO 0x0C
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#define MOXA_MUST_IIR_LSR 0x06
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2011-03-30 19:57:33 -06:00
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/* received Xon/Xoff or specical interrupt pending */
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2005-04-16 16:20:36 -06:00
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#define MOXA_MUST_IIR_XSC 0x10
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2008-02-07 01:16:46 -07:00
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/* RTS/CTS change state interrupt pending */
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2005-04-16 16:20:36 -06:00
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#define MOXA_MUST_IIR_RTSCTS 0x20
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#define MOXA_MUST_IIR_MASK 0x3E
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#define MOXA_MUST_MCR_XON_FLAG 0x40
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#define MOXA_MUST_MCR_XON_ANY 0x80
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#define MOXA_MUST_MCR_TX_XON 0x08
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2008-02-07 01:16:46 -07:00
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/* software flow control on chip mask value */
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2005-04-16 16:20:36 -06:00
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#define MOXA_MUST_EFR_SF_MASK 0x0F
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2008-02-07 01:16:46 -07:00
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/* send Xon1/Xoff1 */
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#define MOXA_MUST_EFR_SF_TX1 0x08
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/* send Xon2/Xoff2 */
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#define MOXA_MUST_EFR_SF_TX2 0x04
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2008-02-07 01:16:46 -07:00
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/* send Xon1,Xon2/Xoff1,Xoff2 */
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#define MOXA_MUST_EFR_SF_TX12 0x0C
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2008-02-07 01:16:46 -07:00
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/* don't send Xon/Xoff */
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#define MOXA_MUST_EFR_SF_TX_NO 0x00
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2008-02-07 01:16:46 -07:00
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/* Tx software flow control mask */
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#define MOXA_MUST_EFR_SF_TX_MASK 0x0C
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2008-02-07 01:16:46 -07:00
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/* don't receive Xon/Xoff */
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#define MOXA_MUST_EFR_SF_RX_NO 0x00
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2008-02-07 01:16:46 -07:00
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/* receive Xon1/Xoff1 */
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#define MOXA_MUST_EFR_SF_RX1 0x02
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/* receive Xon2/Xoff2 */
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#define MOXA_MUST_EFR_SF_RX2 0x01
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/* receive Xon1,Xon2/Xoff1,Xoff2 */
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#define MOXA_MUST_EFR_SF_RX12 0x03
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/* Rx software flow control mask */
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#define MOXA_MUST_EFR_SF_RX_MASK 0x03
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#endif
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