Commit Graph

15 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
b24413180f 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>
2017-11-02 11:10:55 +01:00
Alexander Shiyan
c86f51737f ARM: clps711x: Switch to MULTIPLATFORM
Switch CLPS711X to multiplatform.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-06 17:57:56 +02:00
Alexander Shiyan
4a56f46a7d ARM: clps711x: Remove boards support
Any CLPS711X-based board can be replaced with devicetree equivalent.
Remove the board files.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-06 17:57:55 +02:00
Alexander Shiyan
0db943ec02 ARM: clps711x: Add basic DT support
This patch adds basic support to run Cirrus Logic ARMv4T CPUs
with device-tree support.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-06 17:38:54 +02:00
Alexander Shiyan
a0d3a2d92e ARM: clps711x: Drop fortunet board support
This patch removes support for the fortunet board.
This board is not maintained by long time and it seems
no one is not using it.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-08-13 23:29:11 -07:00
Alexander Shiyan
e328b88094 ARM: clps711x: Re-add GPIO support
arch_initcall was been removed from GPIO driver, so this patch
re-add support for GPIO into boards as platform_device.
Since some drivers (spi, nand, etc.) is not support deferred probe,
separate machine init calls is used in board code to make proper
loading sequence.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-11 15:44:57 -07:00
Alexander Shiyan
53ee770035 ARM: clps711x: Rename board files to match functionality
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-21 09:57:46 -08:00
Alexander Shiyan
2a5528912d ARM: clps711x: merge files related to EDB7211-board into one
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-10-25 17:22:53 +02:00
Linus Torvalds
8f446a7a06 ARM: soc: driver specific changes
- A long-coming conversion of various platforms to a common LED
   infrastructure
 - AT91 is moved over to use the newer MCI driver for MMC
 - Pincontrol conversions for samsung platforms
 - DT bindings for gscaler on samsung
 - i2c driver fixes for tegra, acked by i2c maintainer
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Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc driver specific changes from Olof Johansson:
 - A long-coming conversion of various platforms to a common LED
   infrastructure
 - AT91 is moved over to use the newer MCI driver for MMC
 - Pincontrol conversions for samsung platforms
 - DT bindings for gscaler on samsung
 - i2c driver fixes for tegra, acked by i2c maintainer

Fix up conflicts as per Olof.

* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  drivers: bus: omap_l3: use resources instead of hardcoded irqs
  pinctrl: exynos: Fix wakeup IRQ domain registration check
  pinctrl: samsung: Uninline samsung_pinctrl_get_soc_data
  pinctrl: exynos: Correct the detection of wakeup-eint node
  pinctrl: exynos: Mark exynos_irq_demux_eint as inline
  pinctrl: exynos: Handle only unmasked wakeup interrupts
  pinctrl: exynos: Fix typos in gpio/wkup _irq_mask
  pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa
  drivers: bus: Move the OMAP interconnect driver to drivers/bus/
  i2c: tegra: dynamically control fast clk
  i2c: tegra: I2_M_NOSTART functionality not supported in Tegra20
  ARM: tegra: clock: remove unused clock entry for i2c
  ARM: tegra: clock: add connection name in i2c clock entry
  i2c: tegra: pass proper name for getting clock
  ARM: tegra: clock: add i2c fast clock entry in clock table
  ARM: EXYNOS: Adds G-Scaler device from Device Tree
  ARM: EXYNOS: Add clock support for G-Scaler
  ARM: EXYNOS: Enable pinctrl driver support for EXYNOS4 device tree enabled platform
  ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC
  ARM: EXYNOS: skip wakeup interrupt setup if pinctrl driver is used
  ...
2012-10-01 18:46:13 -07:00
Alexander Shiyan
1c3a918f78 ARM: clps711x: Remove board support for CEIVA
The current kernel does not fit in the CEIVA ROM. Also, some functional
has already been removed due migrate from 2.6 to 3.0, and it seems that
no one uses this platform. So, remove support for this board and modules
specific only to this board.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
2012-09-28 21:14:08 +02:00
Bryan Wu
8ee8ef2996 ARM: mach-clps711x: retire custom LED code of P720T machine
Add tigger based LED driver into board file of P720T.
Remove old LED driver file.

Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
2012-08-01 11:22:08 +08:00
Russell King
3a083227a4 ARM: clps711x: consolidate irq/mm/time code into a single file
The separate files for clps711x which contain maybe one or two data
structures or functions is an inefficient use of files, and encourages
further small files as other changes happen.  Collapse down these into
a single core.c file.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-11-17 17:09:30 +00:00
Russell King
d56c524afa [PATCH] ARM: Reverted 2918/1: [update] Base port of Comdial MP1000 platfrom
No longer maintained
2005-11-04 17:28:34 +00:00
Jon Ringle
0b83f1400f [ARM] 2918/1: [update] Base port of Comdial MP1000 platfrom
Patch from Jon Ringle

Updated 2898/1 per comments:
- Removed fixup
- Moved code in mach-mp1000/ to mach-clps711x/
- Cleaned up code in mp1000-seprom.c. Eliminated code that displayed the contents of the eeprom
Please comment.

Signed-off-by: Jon Ringle
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-28 16:19:37 +01:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00