Changes in bitops.h

47d8c156 - include: move find.h from asm_generic to linux

Sat, 14 Aug 2021 21:16:59 +0000

include: move find.h from asm_generic to linuxfind_bit API and bitmap API are closely related, but inclusion pathsare different - include/asm-generic and include/linux, correspondingly.In the past it made a lot of troubles due to circular dependenciesand/or undefined symbols. Fix this by moving find.h under include/linux.Signed-off-by: Yury Norov Tested-by: Wolfram Sang Acked-by: Geert Uytterhoeven List of files: /linux-6.15/arch/sh/include/asm/bitops.h

bb8bc36e - arch: rearrange headers inclusion order in asm/bitops for m68k, sh and h8300

Fri, 07 May 2021 01:02:53 +0000

arch: rearrange headers inclusion order in asm/bitops for m68k, sh and h8300m68k and sh include bitmap/{find,le}.h prior to ffs/fls headers. Newfast-path implementation in find.h requires ffs/fls. Reordering theheaders inclusion sequence helps to prevent compile-time implicit functiondeclaration error.[yury.norov@gmail.com: h8300: rearrange headers inclusion order in asm/bitops] Link: https://lkml.kernel.org/r/20210406183625.794227-1-yury.norov@gmail.comLink: https://lkml.kernel.org/r/20210401003153.97325-5-yury.norov@gmail.comSigned-off-by: Yury Norov Acked-by: Geert Uytterhoeven Acked-by: Rasmus Villemoes Reviewed-by: Andy Shevchenko Tested-by: Guenter Roeck Cc: Alexey Klimov Cc: Arnd Bergmann Cc: David Sterba Cc: Dennis Zhou Cc: Jianpeng Ma Cc: Joe Perches Cc: John Paul Adrian Glaubitz Cc: Josh Poimboeuf Cc: Rich Felker Cc: Stefano Brivio Cc: Wei Yang Cc: Wolfram Sang Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/sh/include/asm/bitops.h

e12b090e - sh: remove KERNEL ifdefs from non-UAPI headers

Tue, 14 Jul 2020 12:18:49 +0000

sh: remove __KERNEL__ ifdefs from non-UAPI headersThere is no point in having __KERNEL__ ifdefs in headers not exported touserspace.Signed-off-by: Christoph Hellwig Signed-off-by: Rich Felker List of files: /linux-6.15/arch/sh/include/asm/bitops.h

37744fee - sh: remove sh5 support

Mon, 20 Apr 2020 09:37:12 +0000

sh: remove sh5 supportsh5 never became a product and has probably never really worked.Remove it by recursively deleting all associated Kconfig optionsand all corresponding files.Reviewed-by: Geert Uytterhoeven Signed-off-by: Arnd Bergmann Signed-off-by: Rich Felker List of files: /linux-6.15/arch/sh/include/asm/bitops.h

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/sh/include/asm/bitops.h

2b47d54e - sh: add J2 atomics using the cas.l instruction

Thu, 28 Jul 2016 19:21:10 +0000

sh: add J2 atomics using the cas.l instructionSigned-off-by: Rich Felker List of files: /linux-6.15/arch/sh/include/asm/bitops.h

603228bc - arch,sh: Convert smp_mb__*()

Thu, 13 Mar 2014 18:00:35 +0000

arch,sh: Convert smp_mb__*()SH can use the asm-generic/barrier.h implementation since that usessmp_mb().Signed-off-by: Peter Zijlstra Acked-by: Paul E. McKenney Link: http://lkml.kernel.org/n/tip-2z962by2ppzcd984ybw2mwdw@git.kernel.orgCc: Linus Torvalds Cc: linux-kernel@vger.kernel.orgCc: linux-sh@vger.kernel.orgSigned-off-by: Ingo Molnar List of files: /linux-6.15/arch/sh/include/asm/bitops.h

e839ca52 - Disintegrate asm/system.h for SH

Wed, 28 Mar 2012 17:30:03 +0000

Disintegrate asm/system.h for SHDisintegrate asm/system.h for SH.Signed-off-by: David Howells cc: linux-sh@vger.kernel.org List of files: /linux-6.15/arch/sh/include/asm/bitops.h

344dd2f4 - sh/next: Fix build fail by asm/system.h in asm/bitops.h

Tue, 06 Mar 2012 05:07:09 +0000

sh/next: Fix build fail by asm/system.h in asm/bitops.hOther files are not done include definitely by asm/system.h madeinclude in asm/bitops.h.This patch remove asm/system.h from asm/bitops.h.-----LANG=C make ARCH=sh CROSS_COMPILE=sh4-linux-gnu- CHK include/linux/version.h CHK include/generated/utsrelease.hmake[1]: `include/generated/machtypes.h' is up to date. CC arch/sh/kernel/asm-offsets.sIn file included from include/asm-generic/getorder.h:7, from /home/iwamatsu/work/kernel/sh-2.6-devel/arch/sh/include/asm/page.h:187, from /home/iwamatsu/work/kernel/sh-2.6-devel/arch/sh/include/asm/mmu.h:38, from /home/iwamatsu/work/kernel/sh-2.6-devel/arch/sh/include/asm/system_32.h:5, from /home/iwamatsu/work/kernel/sh-2.6-devel/arch/sh/include/asm/system.h:179, from /home/iwamatsu/work/kernel/sh-2.6-devel/arch/sh/include/asm/bitops.h:10, from include/linux/bitops.h:22, from include/linux/thread_info.h:52, from include/linux/preempt.h:9, from include/linux/spinlock.h:50, from include/linux/mmzone.h:7, from include/linux/gfp.h:4, from include/linux/mm.h:8, from arch/sh/kernel/asm-offsets.c:13:include/linux/log2.h: In function '__ilog2_u32':include/linux/log2.h:34: error: implicit declaration of function 'fls'include/linux/log2.h: In function '__ilog2_u64':include/linux/log2.h:42: error: implicit declaration of function 'fls64'include/linux/log2.h: In function '__roundup_pow_of_two':include/linux/log2.h:63: error: implicit declaration of function 'fls_long'-----Signed-off-by: Nobuhiro Iwamatsu Signed-off-by: Paul Mundt List of files: /linux-6.15/arch/sh/include/asm/bitops.h

61f2e7b0 - bitops: remove minix bitops from asm/bitops.h

Wed, 23 Mar 2011 23:42:16 +0000

bitops: remove minix bitops from asm/bitops.hminix bit operations are only used by minix filesystem and useless byother modules. Because byte order of inode and block bitmaps is differenton each architecture like below:m68k: big-endian 16bit indexed bitmapsh8300, microblaze, s390, sparc, m68knommu: big-endian 32 or 64bit indexed bitmapsm32r, mips, sh, xtensa: big-endian 32 or 64bit indexed bitmaps for big-endian mode little-endian bitmaps for little-endian modeOthers: little-endian bitmapsIn order to move minix bit operations from asm/bitops.h to architectureindependent code in minix filesystem, this provides two config options.CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED is only selected by m68k.CONFIG_MINIX_FS_NATIVE_ENDIAN is selected by the architectures which usenative byte order bitmaps (h8300, microblaze, s390, sparc, m68knommu,m32r, mips, sh, xtensa). The architectures which always use little-endianbitmaps do not select these options.Finally, we can remove minix bit operations from asm/bitops.h for allarchitectures.Signed-off-by: Akinobu Mita Acked-by: Arnd Bergmann Acked-by: Greg Ungerer Cc: Geert Uytterhoeven Cc: Roman Zippel Cc: Andreas Schwab Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Yoshinori Sato Cc: Michal Simek Cc: "David S. Miller" Cc: Hirokazu Takata Acked-by: Ralf Baechle Acked-by: Paul Mundt Cc: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/sh/include/asm/bitops.h

f312eff8 - bitops: remove ext2 non-atomic bitops from asm/bitops.h

Wed, 23 Mar 2011 23:42:14 +0000

bitops: remove ext2 non-atomic bitops from asm/bitops.hAs the result of conversions, there are no users of ext2 non-atomic bitoperations except for ext2 filesystem itself. Now we can put them intoarchitecture independent code in ext2 filesystem, and remove fromasm/bitops.h for all architectures.Signed-off-by: Akinobu Mita Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/sh/include/asm/bitops.h

861b5ae7 - bitops: introduce little-endian bitops for most architectures

Wed, 23 Mar 2011 23:42:02 +0000

bitops: introduce little-endian bitops for most architecturesIntroduce little-endian bit operations to the big-endian architectureswhich do not have native little-endian bit operations and thelittle-endian architectures. (alpha, avr32, blackfin, cris, frv, h8300,ia64, m32r, mips, mn10300, parisc, sh, sparc, tile, x86, xtensa)These architectures can just include generic implementation(asm-generic/bitops/le.h).Signed-off-by: Akinobu Mita Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Mikael Starvik Cc: David Howells Cc: Yoshinori Sato Cc: "Luck, Tony" Cc: Ralf Baechle Cc: Kyle McMartin Cc: Matthew Wilcox Cc: Grant Grundler Cc: Paul Mundt Cc: Kazumoto Kojima Cc: Hirokazu Takata Cc: "David S. Miller" Cc: Chris Zankel Cc: Ingo Molnar Cc: Thomas Gleixner Acked-by: Hans-Christian Egtvedt Acked-by: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/sh/include/asm/bitops.h

1c8db713 - sh: Fix up smp_mb__xxx() memory barriers for SH-4A SMP.

Sun, 18 Oct 2009 06:36:02 +0000

sh: Fix up smp_mb__xxx() memory barriers for SH-4A SMP.In the past these were simply wrapping to barrier() which was sufficienton SH SMP platforms predating SH-4A. Unfortunately due to ll/sc semanticsan explicit synco is needed in these cases, which is sorted for us byjust switching these over to smp_mb(). smp_mb() also has the benefit ofbeing wrapped to barrier() in the UP and non-SH4A cases, so old behaviouris maintained for those parts.Signed-off-by: Paul Mundt List of files: /linux-6.15/arch/sh/include/asm/bitops.h

0d5bbe0b - sh: Provide optimized non-atomic bitops for SH-2A.

Tue, 25 Nov 2008 12:22:02 +0000

sh: Provide optimized non-atomic bitops for SH-2A.This ties in the new SH-2A 32-bit non-atomic bitops.Signed-off-by: Paul Mundt List of files: /linux-6.15/arch/sh/include/asm/bitops.h

16b529d1 - sh: Convert to generic bitops for IRQ-toggling implementation.

Thu, 20 Nov 2008 06:25:22 +0000

sh: Convert to generic bitops for IRQ-toggling implementation.Signed-off-by: Paul Mundt List of files: /linux-6.15/arch/sh/include/asm/bitops.h

742fd1bc - sh: Provide movli.l/movco.l-based bitops.

Thu, 07 Aug 2008 08:36:12 +0000

sh: Provide movli.l/movco.l-based bitops.Signed-off-by: Paul Mundt List of files: /linux-6.15/arch/sh/include/asm/bitops.h

f15cbe6f - sh: migrate to arch/sh/include/

Mon, 28 Jul 2008 23:09:44 +0000

sh: migrate to arch/sh/include/This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.Most of the moving about was done with Sam's directions at:http://marc.info/?l=linux-sh&m=121724823706062&w=2with subsequent hacking and fixups entirely my fault.Signed-off-by: Sam Ravnborg Signed-off-by: Paul Mundt List of files: /linux-6.15/arch/sh/include/asm/bitops.h