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2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman
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>
2017-05-22MIPS: jz4740: Remove custom GPIO codePaul Cercueil
All the drivers for the various hardware elements of the jz4740 SoC have been modified to use the pinctrl framework for their pin configuration needs. As such, this platform code is now unused and can be deleted. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-06-21MIPS: ingenic: Initial JZ4780 supportPaul Burton
Support the Ingenic JZ4780 SoC using the existing code under arch/mips/jz4740 now that it has been generalised sufficiently. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Joshua Kinard <kumba@gentoo.org> Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Cc: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> Cc: linux-kernel@vger.kernel.org Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Andreas Herrmann <andreas.herrmann@caviumnetworks.com> Patchwork: https://patchwork.linux-mips.org/patch/10164/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21MIPS: JZ4740: use Ingenic SoC UART driverPaul Burton
Remove the serial support from arch/mips/jz4740 & make use of the new Ingenic SoC UART driver. This is done for both regular & early console output. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: linux-kernel@vger.kernel.org Cc: Brian Norris <computersforpeace@gmail.com> Cc: Apelete Seketeli <apelete@seketeli.net> Cc: Alexandre Courbot <gnurou@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/10160/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21MIPS: JZ4740: only detect RAM size if not specified in DTPaul Burton
Allow a devicetree to specify the memory present in the system rather than probing it from the memory controller. This both saves the probing for systems where the amount of memory is fixed, and will simplify the bringup of later Ingenic SoCs where the memory controller register layout differs. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10163/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21MIPS, clk: move jz4740 clock suspend, resume functions to jz4740-cguPaul Burton
The jz4740-cgu driver already has access to the CGU, so it makes sense to move the few remaining accesses to the CGU from arch/mips/jz4740 there too. Move the jz4740_clock_{suspend,resume} functions there for such consistency. The arch/mips/jz4740/clock.c file now contains nothing more of use & so is removed. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-clk@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10158/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21MIPS,clk: migrate JZ4740 to common clock frameworkPaul Burton
Migrate the JZ4740 & the qi_lb60 board to use common clock framework via the new Ingenic SoC CGU driver. Note that the JZ4740-specific debugfs code is removed since common clock framework provides its own debug capabilities. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Co-authored-by: Paul Cercueil <paul@crapouillou.net> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: devicetree@vger.kernel.org Cc: linux-clk@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Fabian Frederick <fabf@skynet.be> Cc: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: linux-kernel@vger.kernel.org Cc: Brian Norris <computersforpeace@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/10151/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21MIPS/IRQCHIP: Move Ingenic SoC intc driver to drivers/irqchipPaul Burton
Move the driver for Ingenic SoC interrupt controllers into drivers/irqchip where it belongs. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Brian Norris <computersforpeace@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/10147/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-05MIPS: jz4740: Remove custom DMA APILars-Peter Clausen
Now that all users of the custom jz4740 DMA API have been converted to use the dmaengine API instead we can remove the custom API and move all the code talking to the hardware to the dmaengine driver. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2012-10-05pwm: Add Ingenic JZ4740 supportThierry Reding
This commit moves the driver to drivers/pwm and converts it to the new PWM framework. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21MIPS: Remove all -Wall and almost all -Werror usage from arch/mips.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-17mips: change to new flag variablematt mooney
Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by: matt mooney <mfm@muteddisk.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-08-05MIPS: JZ4740: Add qi_lb60 board supportLars-Peter Clausen
Add support for the qi_lb60 (a.k.a QI Ben NanoNote) clamshell device. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1472/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: JZ4740: Add Kbuild filesLars-Peter Clausen
Add the Kbuild files for the JZ4740 architecture and adds JZ4740 support to the MIPS Kbuild files. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1406/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>