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* License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2017-11-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* ARM: dts: vexpress: fix few unit address format warningsSudeep Holla2017-04-191-12/+12
| | | | | | | | | | | | | | | | | | | | | This patch fixes the following set of warnings on vexpress platforms: sysreg@010000 simple-bus unit address format error, expected "10000" sysctl@020000 simple-bus unit address format error, expected "20000" i2c@030000 simple-bus unit address format error, expected "30000" aaci@040000 simple-bus unit address format error, expected "40000" mmci@050000 simple-bus unit address format error, expected "50000" kmi@060000 simple-bus unit address format error, expected "60000" kmi@070000 simple-bus unit address format error, expected "70000" uart@090000 simple-bus unit address format error, expected "90000" uart@0a0000 simple-bus unit address format error, expected "a0000" uart@0b0000 simple-bus unit address format error, expected "b0000" uart@0c0000 simple-bus unit address format error, expected "c0000" wdt@0f0000 simple-bus unit address format error, expected "f0000" Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
* ARM: dts: vexpress: fix node name unit-address presence warningsSudeep Holla2016-04-251-22/+22
| | | | | | | | | | | | Commit b993734718c0 ("scripts/dtc: Update to upstream version 53bf130b1cdd") added warnings on node name unit-address presence/absence mismatch in the device trees. This patch fixes those warning on all the vexpress platforms where unit-address is present in node name while the reg/ranges property is not present. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
* ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus"Masahiro Yamada2016-03-121-1/+1
| | | | | | | | | | | | | | | | The compatible string "simple-bus" is well defined in ePAPR, while I see no documentation for the "arm,amba-bus" arnywhere in ePAPR or Documentation/devicetree/. DT is also used by other projects than Linux kernel. It is not a good idea to rely on such an unofficial binding. This commit - replaces "arm,amba-bus" with "simple-bus" - drops "arm,amba-bus" where it is used along with "simple-bus" Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* ARM: dts: vexpress: Use assigned-clock-parents for sp810Stephen Boyd2015-08-181-0/+2
| | | | | | | | | | | | | | | | The sp810 clk driver is calling the clk consumer APIs from clk_prepare ops to change the parent to a 1 MHz fixed rate clock for each of the clocks that the driver provides. Use assigned-clock-parents for this instead of doing it in the driver to avoid using the consumer API in provider code. This also allows us to remove the usage of clk provider APIs that take a struct clk as an argument from the sp810 driver. Cc: Pawel Moll <pawel.moll@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Tested-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Olof Johansson <olof@lixom.net>
* ARM: vexpress: Add CLCD Device Tree propertiesPawel Moll2014-09-251-2/+34
| | | | | | | | ... for V2M-P1 motherboard CLCD (limited to 640x480 16bpp and using dedicated video RAM bank) and for V2P-CA9 (up to 1024x768 16bpp). Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* mfd: vexpress: Define the device as MFD cellsPawel Moll2014-05-151-4/+72
| | | | | | | | | | | | | | | | | | | | | | | | This patch - finally, after over 6 months! :-( - addresses Samuel's request to split the vexpress-sysreg driver into smaller portions and define the device in a form of MFD cells: * LEDs code has been completely removed and replaced with "gpio-leds" nodes in the tree (referencing dedicated GPIO subnodes in sysreg - bindings documentation updated); this also better fits the reality as some variants of the motherboard don't have all the LEDs populated * syscfg bridge code has been extracted into a separate driver (placed in drivers/misc for no better place) * all the ID & MISC registers are defined as sysconf making them available for other drivers should they need to use them (and also to the user via /sys/kernel/debug/regmap which can be helpful in platform debugging) Signed-off-by: Pawel Moll <pawel.moll@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org>
* ARM: vexpress: Remove motherboard dependencies in the DTS filesPawel Moll2012-11-051-7/+4
| | | | | | | | | | | The way the VE motherboard Device Trees were constructed enforced naming and structure of daughterboard files. This patch makes it possible to simply include the motherboard description anywhere in the main Device Tree and retires the "arm,v2m-timer" alias - any of the motherboard SP804 timers will be used instead. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
* ARM: vexpress: Add config bus components and clocks to DTsPawel Moll2012-11-051-2/+133
| | | | | | | | Add description of all functions provided by Versatile Express motherboard and daughterboards configuration controllers and clock dependencies between devices. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
* ARM: vexpress: Add fixed regulator for SMSCPawel Moll2012-07-131-0/+10
| | | | | | | | | | SMSC driver requires "vdd33a" and "vddvario" regulator supplies now. Add fixed regulator describing 3V3 power line (in both motherboard's Device Trees and the non-DT code) and force fixed regulator config option if regulators framework is enabled. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
* ARM: vexpress: Add missing SP804 interrupt in motherboard's DTS filesPawel Moll2012-07-131-0/+1
| | | | Signed-off-by: Pawel Moll <pawel.moll@arm.com>
* ARM: vexpress: Add Device Tree supportPawel Moll2012-02-241-0/+200
This patch adds generic Versatile Express DT machine description, Device Tree description for the motherboard and documentation for the bindings. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
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