b2441318 - License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Wed, 01 Nov 2017 14:07:57 +0000

License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseMany source files in the tree are missing licensing information, whichmakes it harder for compliance tools to determine the correct license.By default all files without license information are under the defaultlicense 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 bindingshorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart andPhilippe Ombredanne.How this work was done:Patches were generated and checked against linux-4.14-rc6 for a subset ofthe 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 caseswhere non-standard license headers were used, and references to licensehad to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied toa file was done in a spreadsheet of side by side results from of theoutput of two independent scanners (ScanCode & Windriver) producing SPDXtag:value files created by Philippe Ombredanne. Philippe prepared thebase 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 filesassessed. Kate Stewart did a file by file comparison of the scannerresults in the spreadsheet to determine which SPDX license identifier(s)to be applied to the file. She confirmed any determination that was notimmediately 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 licenseidentifiers 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 thespreadsheet to determine the SPDX license identifiers to apply to thesource files by Kate, Philippe, Thomas and, in some cases, confirmationby lawyers working with the Linux Foundation.Kate also obtained a third independent scan of the 4.13 code base fromFOSSology, and compared selected files where the other two scannersdisagreed against that SPDX file, to see if there was new insights. TheWindriver scanner is based on an older version of FOSSology in part, sothey are related.Thomas did random spot checks in about 500 files from the spreadsheetsfor the uapi headers and agreed with SPDX license identifier in thefiles he inspected. For the non-uapi files Thomas did random spot checksin about 15000 files.In initial set of patches against 4.14-rc6, 3 files were found to havecopy/paste license identifier errors, and have been fixed to reflect thecorrect identifier.Additionally Philippe spent 10 hours this week doing a detailed manualinspection and review of the 12,461 patched files from the initial patchversion 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 correctThis produced a worksheet with 20 files needing minor correction. Thisworksheet was then exported into 3 different .csv files for thedifferent types of files to be modified.These .csv files were then reviewed by Greg. Thomas wrote a script toparse the csv files and add the proper SPDX tag to the file, in theformat that the file expected. This script was further refined by Gregbased on the output to detect more types of files automatically and todistinguish between header and source .c files (which need differentcomment types.) Finally Greg ran the script using the .csv files togenerate the patches.Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/net/ethernet/cadence/Makefile

ab91f0a9 - net: macb: Add hardware PTP support

Thu, 29 Jun 2017 06:14:16 +0000

net: macb: Add hardware PTP supportThis patch is based on original Harini's patch and Andrei's patch,implemented in a separate file to ease the review/maintananceand integration with other platforms.This driver supports GEM-GXL:- Register ptp clock framework- Initialize PTP related registers- HW time stamp on the PTP Ethernet packets are received using the SO_TIMESTAMPING API. Time stamps are obtained from the dma buffer descriptors- add macb_ptp to compilation chainSigned-off-by: Rafal Ozieblo Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/ethernet/cadence/Makefile

b83f1527 - net: macb: macb.c changed to macb_main.c

Thu, 29 Jun 2017 06:13:46 +0000

net: macb: macb.c changed to macb_main.cIn case that macb is compiled as a module, macb.c has been renamed tomacb_main.c to avoid naming confusion in Makefile.Signed-off-by: Rafal Ozieblo Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/ethernet/cadence/Makefile

83a77e9e - net: macb: Added PCI wrapper for Platform Driver.

Wed, 14 Dec 2016 06:39:15 +0000

net: macb: Added PCI wrapper for Platform Driver.There are hardware PCI implementations of Cadence GEM networkcontroller. This patch will allow to use such hardware with reuse ofexisting Platform Driver.Signed-off-by: Bartosz Folta Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/ethernet/cadence/Makefile

421d9df0 - net/macb: merge at91_ether driver into macb driver

Sat, 07 Mar 2015 06:23:32 +0000

net/macb: merge at91_ether driver into macb drivermacb and at91_ether drivers can be compiled as modules, but the at91_etherdriver use some functions and variables defined in the macb one, thuscreating a dependency on the macb driver.Since these drivers are sharing the same logic we can easily mergeat91_ether into macb.In order to factorize common probing logic we've added an ->init() functionto struct macb_config (the structure associated with the compatiblestring), and moved macb specific init code from macb_probe to macb_init.Signed-off-by: Cyrille Pitchen Signed-off-by: Boris Brezillon Tested-by: Alexandre Belloni Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/ethernet/cadence/Makefile

f4a15e1b - net/at91_ether: select MACB in Kconfig

Mon, 22 Oct 2012 08:45:33 +0000

net/at91_ether: select MACB in KconfigNow that HAVE_NET_MACB is gone let's just select MACB tosatisfy the dependecies in at91_ether.Signed-off-by: Joachim Eastwood Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/ethernet/cadence/Makefile

0112a1da - net/at91_ether: compile macb for exported functions

Thu, 18 Oct 2012 11:01:13 +0000

net/at91_ether: compile macb for exported functionsComile macb as well as at91_ether to access exported functions.Signed-off-by: Joachim Eastwood List of files: /linux-6.15/drivers/net/ethernet/cadence/Makefile

9f2f381f - macb: Move the Atmel driver

Sat, 18 Jun 2011 08:52:36 +0000

macb: Move the Atmel driverMove the Atmel driver into drivers/net/ethernet/cadence/ andmake the necessary Kconfig and Makefile changes.CC: Nicolas Ferre CC: Jamie Iles Signed-off-by: Jeff Kirsher Acked-by: Jamie Iles Acked-by: Nicolas Ferre List of files: /linux-6.15/drivers/net/ethernet/cadence/Makefile

Changes in Makefile