Changes in Makefile

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/arch/mips/math-emu/Makefile

3ec404d8 - MIPS: math-emu: RINT.: Fix several problems by reimplementation

Mon, 21 Aug 2017 12:24:48 +0000

MIPS: math-emu: RINT.: Fix several problems by reimplementationReimplement RINT. kernel emulation so that all RINT.specifications are met.For the sake of simplicity, let's analyze RINT.S only. Prior tothis patch, RINT.S emulation was essentially implemented as (inpseudocode) = ieee754sp_flong(ieee754sp_tlong()),where ieee754sp_tlong() and ieee754sp_flong() are functionsproviding conversion from double to integer, and from integerto double, respectively. On surface, this implementation lookscorrect, but actually fails in many cases. Following problemswere detected:1. NaN and infinity cases will not be handled properly. The function ieee754sp_flong() never returns NaN nor infinity.2. For RINT.S, for all inputs larger than LONG_MAX, and smaller than FLT_MAX, the result will be wrong, and the overflow exception will be erroneously set. A similar problem for negative inputs exists as well.3. For some rounding modes, for some negative inputs close to zero, the return value will be zero, and should be -zero. This is because ieee754sp_flong() never returns -zero.This patch removes the problems above by implementing dedicatedfunctions for RINT. emulation.The core of the new function functionality is adapted version ofthe core of the function ieee754sp_tlong(). However, there are manydetails that are implemented to match RINT. specification. Itshould be said that the functionality of ieee754sp_tlong() actuallyclosely corresponds to CVT.L.S instruction, and it is used whileemulating CVT.L.S. However, RINT.S and CVT.L.S instructions differin many aspects. This patch fulfills missing support for RINT..Signed-off-by: Miodrag Dinic Signed-off-by: Goran Ferenc Signed-off-by: Aleksandar Markovic Cc: David S. Miller Cc: Douglas Leung Cc: Greg Kroah-Hartman Cc: Hans Verkuil Cc: James Hogan Cc: Maciej W. Rozycki Cc: Masahiro Yamada Cc: Mauro Carvalho Chehab Cc: Paul Burton Cc: Petar Jovanovic Cc: Raghu Gandham Cc: Randy Dunlap Cc: linux-mips@linux-mips.orgCc: linux-kernel@vger.kernel.orgPatchwork: https://patchwork.linux-mips.org/patch/17141/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

d728f670 - MIPS: math-emu: Unify ieee754dp_m{add,sub}f

Thu, 21 Apr 2016 13:04:50 +0000

MIPS: math-emu: Unify ieee754dp_m{add,sub}fThe code for emulating MIPSr6 madd.d & msub.d instructions haspreviously been implemented as 2 different functions, namelyieee754dp_maddf & ieee754dp_msubf. The difference in behaviour of these2 instructions is merely the sign of the product, so we can easily sharethe code implementing them. Do this for the double precision variant,removing the original ieee754dp_msubf in favor of reusing the code fromieee754dp_maddf.Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.orgCc: linux-kernel@vger.kernel.orgPatchwork: https://patchwork.linux-mips.org/patch/13155/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

6162051e - MIPS: math-emu: Unify ieee754sp_m{add,sub}f

Thu, 21 Apr 2016 13:04:49 +0000

MIPS: math-emu: Unify ieee754sp_m{add,sub}fThe code for emulating MIPSr6 madd.s & msub.s instructions haspreviously been implemented as 2 different functions, namelyieee754sp_maddf & ieee754sp_msubf. The difference in behaviour of these2 instructions is merely the sign of the product, so we can easily sharethe code implementing them. Do this for the single precision variant,removing the original ieee754sp_msubf in favor of reusing the code fromieee754sp_maddf.Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.orgCc: linux-kernel@vger.kernel.orgPatchwork: https://patchwork.linux-mips.org/patch/13154/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

a79f5f9b - MIPS: math-emu: Add support for the MIPS R6 MAX{, A} FPU instruction

Thu, 13 Aug 2015 07:56:36 +0000

MIPS: math-emu: Add support for the MIPS R6 MAX{, A} FPU instructionMIPS R6 introduced the following instruction:Scalar Floating-Point Maximum andScalar Floating-Point argument with Maximum Absolute ValueMAX.fmt writes the maximum value of the inputs fs and ft to thedestination fd.MAXA.fmt takes input arguments fs and ft and writes the argument withthe maximum absolute value to the destination fd.Signed-off-by: Markos Chandras Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/10961/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

4e9561b2 - MIPS: math-emu: Add support for the MIPS R6 MIN{, A} FPU instruction

Thu, 13 Aug 2015 07:56:35 +0000

MIPS: math-emu: Add support for the MIPS R6 MIN{, A} FPU instructionMIPS R6 introduced the following instruction:Scalar Floating-Point Minimum andScalar Floating-Point argument with Minimum Absolute ValueMIN.fmt writes the minimum value of the inputs fs and ft to thedestination fd.MINA.fmt takes input arguments fs and ft and writes the argument withthe minimum absolute value to the destination fd.Signed-off-by: Markos Chandras Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/10960/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

38db37ba - MIPS: math-emu: Add support for the MIPS R6 CLASS FPU instruction

Thu, 13 Aug 2015 07:56:34 +0000

MIPS: math-emu: Add support for the MIPS R6 CLASS FPU instructionMIPS R6 introduced the following instruction:Stores in fd a bit mask reflecting the floating-point class of thefloating point scalar value fs.CLASS.fmt: FPR[fd] = class(FPR[fs])Signed-off-by: Markos Chandras Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/10959/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

83d43305 - MIPS: math-emu: Add support for the MIPS R6 MSUBF FPU instruction

Thu, 13 Aug 2015 07:56:32 +0000

MIPS: math-emu: Add support for the MIPS R6 MSUBF FPU instructionMIPS R6 introduced the following instruction:Floating Point Fused Multiply Subtract:MSUBF.fmt To perform a fused multiply-subtract of FP values.MSUBF.fmt: FPR[fd] = FPR[fd] - (FPR[fs] x FPR[ft])Signed-off-by: Markos Chandras Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/10957/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

e24c3bec - MIPS: math-emu: Add support for the MIPS R6 MADDF FPU instruction

Thu, 13 Aug 2015 07:56:31 +0000

MIPS: math-emu: Add support for the MIPS R6 MADDF FPU instructionMIPS R6 introduced the following instruction:Floating Point Fused Multiply Add:MADDF.fmt To perform a fused multiply-add of FP values.MADDF.fmt: FPR[fd] = FPR[fd] + (FPR[fs] x FPR[ft])Signed-off-by: Markos Chandras Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/10956/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

cfafc4fe - MIPS: math-emu: Move long fixed-point support into an `ar' library

Fri, 03 Apr 2015 22:27:01 +0000

MIPS: math-emu: Move long fixed-point support into an `ar' libraryComplement 593d33fe [MIPS: math-emu: Move various objects into an arlibrary.] and also move sp_tlong.o, sp_flong.o, dp_tlong.o, anddp_flong.o into an `ar' library. These objects implement longfixed-point format support that can be omitted from MIPS I, MIPS II andMIPS32r1 configurations.Signed-off-by: Maciej W. Rozycki Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/9702/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

e0cc3a42 - MIPS: math-emu: Inline fpu_emulator_init_fpu()

Mon, 28 Apr 2014 20:34:01 +0000

MIPS: math-emu: Inline fpu_emulator_init_fpu()Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

90efba36 - MIPS: math-emu: Get rid of the useless parts of exception handling.

Fri, 25 Apr 2014 01:19:57 +0000

MIPS: math-emu: Get rid of the useless parts of exception handling.All it really did was throw a printk for no obvious reason.Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

593d33fe - MIPS: math-emu: Move various objects into an ar library.

Thu, 24 Apr 2014 23:52:46 +0000

MIPS: math-emu: Move various objects into an ar library.ieee754d.o contains only debug code and dp_sqrt.o and sp_sqrt.o containcode which for MIPS I/II/III systems we don't want to link. Again thesavings can be considerable for some systems:$ mips-linux-size --totals ieee754d.o dp_sqrt.o sp_sqrt.o text data bss dec hex filename 1624 0 0 1624 658 ieee754d.o 2016 0 0 2016 7e0 dp_sqrt.o 736 0 0 736 2e0 sp_sqrt.o 4376 0 0 4376 1118 (TOTALS)Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

dfbf42b8 - MIPS: math-emu: Remove unused code.

Thu, 24 Apr 2014 22:29:50 +0000

MIPS: math-emu: Remove unused code.Shrinks the FPU emulator by 4528 bytes.Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

85c51c51 - MIPS: math-emu: Move all debug fs code to a separate file.

Wed, 16 Apr 2014 00:46:11 +0000

MIPS: math-emu: Move all debug fs code to a separate file.Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

405ab01c - MIPS: Nuke empty lines at end of files.

Fri, 18 Jan 2013 15:59:18 +0000

MIPS: Nuke empty lines at end of files.Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

66f9ba10 - MIPS: Add -Werror to arch/mips/Kbuild

Sun, 30 May 2010 14:26:40 +0000

MIPS: Add -Werror to arch/mips/KbuildAdding subdirs-ccflags-y := -Werror to arch/mips/Kbuildlet us in one go cover all files with -Werror.In addition this allows us to remove theindividual -Werror definition in various Makefile.Adding the definition to Kbuild as a recursiveoption help us not to forget to do so.With this change we now compile arch/mips/kernel/cpufreq with -WerrorOne drawback:When specifying a subdirectory covered by the Kbuild file like this: make arch/mips/kernel/then kbuild fails to pick up the -Werror definition.Signed-off-by: Sam Ravnborg To: linux-mips To: Wu Zhangjin Patchwork: https://patchwork.linux-mips.org/patch/1301/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

dde96ca8 - [MIPS] Use -Werror on subdirectories which build cleanly.

Mon, 30 Jul 2007 10:48:58 +0000

[MIPS] Use -Werror on subdirectories which build cleanly.Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/math-emu/Makefile

1da177e4 - Linux-2.6.12-rc2

Sat, 16 Apr 2005 22:20:36 +0000

Linux-2.6.12-rc2Initial git repository build. I'm not bothering with the full history,even though we have it. We can create a separate "historical" gitarchive of that later if we want to, and in the meantime it's about3.2GB when imported into git - space that would just make the earlygit days unnecessarily complicated, when we don't have a lot of goodinfrastructure for it.Let it rip! List of files: /linux-6.15/arch/mips/math-emu/Makefile