Changes in Kbuild

0c3beacf - asm-generic: introduce text-patching.h

Wed, 23 Oct 2024 16:27:06 +0000

asm-generic: introduce text-patching.hSeveral architectures support text patching, but they name the headerfiles that declare patching functions differently.Make all such headers consistently named text-patching.h and add an emptyheader in asm-generic for architectures that do not support text patching.Link: https://lkml.kernel.org/r/20241023162711.2579610-4-rppt@kernel.orgSigned-off-by: Mike Rapoport (Microsoft) Reviewed-by: Christoph Hellwig Acked-by: Geert Uytterhoeven # m68kAcked-by: Arnd Bergmann Reviewed-by: Luis Chamberlain Tested-by: kdevops Cc: Andreas Larsson Cc: Andy Lutomirski Cc: Ard Biesheuvel Cc: Borislav Petkov (AMD) Cc: Brian Cain Cc: Catalin Marinas Cc: Christophe Leroy Cc: Dave Hansen Cc: Dinh Nguyen Cc: Guo Ren Cc: Helge Deller Cc: Huacai Chen Cc: Ingo Molnar Cc: Johannes Berg Cc: John Paul Adrian Glaubitz Cc: Kent Overstreet Cc: Liam R. Howlett Cc: Mark Rutland Cc: Masami Hiramatsu (Google) Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Simek Cc: Oleg Nesterov Cc: Palmer Dabbelt Cc: Peter Zijlstra Cc: Richard Weinberger Cc: Russell King Cc: Song Liu Cc: Stafford Horne Cc: Steven Rostedt (Google) Cc: Suren Baghdasaryan Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Uladzislau Rezki (Sony) Cc: Vineet Gupta Cc: Will Deacon Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

ef608c57 - nios2: convert to generic syscall table

Tue, 23 Apr 2024 15:52:56 +0000

nios2: convert to generic syscall tableThe uapi/asm/unistd_32.h and asm/syscall_table_32.h headers can now begenerated from scripts/syscall.tbl, which makes this consistent withthe other architectures that have their own syscall.tbl.nios2 has one extra system call that gets added to scripts/syscall.tbl.The time32, stat64, and rlimit entries in the syscall_abis_32line are for system calls that were part of the generic ABI whenarch/nios2 got added but are no longer enabled by default for newarchitectures.Both the user visible side of asm/unistd.h and the internal syscalltable in the kernel should have the same effective contents after this.Signed-off-by: Arnd Bergmann List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

630f289b - asm-generic: make more kernel-space headers mandatory

Thu, 02 Apr 2020 04:03:12 +0000

asm-generic: make more kernel-space headers mandatoryChange a header to mandatory-y if both of the following are met:[1] At least one architecture (except um) specifies it as generic-y in arch/*/include/asm/Kbuild[2] Every architecture (except um) either has its own implementation (arch/*/include/asm/*.h) or specifies it as generic-y in arch/*/include/asm/KbuildThis commit was generated by the following shell script.----------------------------------->8-----------------------------------arches=$(cd arch; ls -1 | sed -e '/Kconfig/d' -e '/um/d')tmpfile=$(mktemp)grep "^mandatory-y +=" include/asm-generic/Kbuild > $tmpfilefind arch -path 'arch/*/include/asm/Kbuild' | xargs sed -n 's/^generic-y += $.*$/\1/p' | sort -u |while read headerdo mandatory=yes for arch in $arches do if ! grep -q "generic-y += $header" arch/$arch/include/asm/Kbuild && ! [ -f arch/$arch/include/asm/$header ]; then mandatory=no break fi done if [ "$mandatory" = yes ]; then echo "mandatory-y += $header" >> $tmpfile for arch in $arches do sed -i "/generic-y += $header/d" arch/$arch/include/asm/Kbuild done fidonesed -i '/^mandatory-y +=/d' include/asm-generic/KbuildLANG=C sort $tmpfile >> include/asm-generic/Kbuild----------------------------------->8-----------------------------------One obvious benefit is the diff stat: 25 files changed, 52 insertions(+), 557 deletions(-)It is tedious to list generic-y for each arch that needs it.So, mandatory-y works like a fallback default (by just wrappingasm-generic one) when arch does not have a specific headerimplementation.See the following commits:def3f7cefe4e81c296090e1722a76551142c227ca1b39bae16a62ce4aae02d958224f19316d98b24It is tedious to convert headers one by one, so I processed by a shellscript.Signed-off-by: Masahiro Yamada Signed-off-by: Andrew Morton Cc: Michal Simek Cc: Christoph Hellwig Cc: Arnd Bergmann Link: http://lkml.kernel.org/r/20200210175452.5030-1-masahiroy@kernel.orgSigned-off-by: Linus Torvalds List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

96ac6d43 - treewide: Add SPDX license identifier - Kbuild

Thu, 30 May 2019 12:03:44 +0000

treewide: Add SPDX license identifier - KbuildAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0Reported-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman Reviewed-by: Kate Stewart Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

c67fdc1f - arch: mostly remove

Tue, 23 Apr 2019 16:38:07 +0000

arch: mostly remove A few architectures use internally, but nothing incommon code does. Remove all the empty or almost empty versions of it,including the asm-generic one.Signed-off-by: Christoph Hellwig Signed-off-by: Arnd Bergmann List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

fdcd06a8 - arch: Use asm-generic header for asm/mmiowb.h

Fri, 22 Feb 2019 12:49:41 +0000

arch: Use asm-generic header for asm/mmiowb.hHook up asm-generic/mmiowb.h to Kbuild for all architectures so that wecan subsequently include asm/mmiowb.h from core code.Cc: Masahiro Yamada Cc: Arnd Bergmann Acked-by: Linus Torvalds Signed-off-by: Will Deacon List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

3d9683cf - KVM: export and iif KVM is supported

Mon, 18 Mar 2019 09:08:12 +0000

KVM: export and iif KVM is supportedI do not see any consistency about headers_install of and .According to my analysis of Linux 5.1-rc1, there are 3 groups: [1] Both and are exported alpha, arm, hexagon, mips, powerpc, s390, sparc, x86 [2] is exported, but is not arc, arm64, c6x, h8300, ia64, m68k, microblaze, nios2, openrisc, parisc, sh, unicore32, xtensa [3] Neither nor is exported csky, nds32, riscvThis does not match to the actual KVM support. At least, [2] ishalf-baked.Nor do arch maintainers look like they care about this. For example,commit 0add53713b1c ("microblaze: Add missing kvm_para.h to Kbuild")exported to user-space in order to fix an in-kernelbuild error.We have two ways to make this consistent: [A] export both and for all architectures, irrespective of the KVM support [B] Match the header export of and to the KVM supportMy first attempt was [A] because the code looks cleaner, but Paolosuggested [B].So, this commit goes with [B].For most architectures, was moved to the kernel-space.I changed include/uapi/linux/Kbuild so that it checks generatedasm/kvm_para.h as well as check-in ones.After this commit, there will be two groups: [1] Both and are exported arm, arm64, mips, powerpc, s390, x86 [2] Neither nor is exported alpha, arc, c6x, csky, h8300, hexagon, ia64, m68k, microblaze, nds32, nios2, openrisc, parisc, riscv, sh, sparc, unicore32, xtensaSigned-off-by: Masahiro Yamada Acked-by: Cornelia Huck Signed-off-by: Paolo Bonzini List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

25622e04 - nios2: use generic dma_noncoherent_ops

Mon, 16 Apr 2018 17:27:22 +0000

nios2: use generic dma_noncoherent_opsSwitch to the generic noncoherent direct mapping implementation.Signed-off-by: Christoph Hellwig Acked-by: Ley Foon Tan Tested-by: Ley Foon Tan List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

2b5a9a37 - time: Add an asm-generic/compat.h file

Mon, 26 Mar 2018 14:59:15 +0000

time: Add an asm-generic/compat.h fileWe have a couple of files that try to include asm/compat.h onarchitectures where this is available. Those should generally use thehigher-level linux/compat.h file, but that in turn fails to includeasm/compat.h when CONFIG_COMPAT is disabled, unless we can providethat header on all architectures.This adds the asm/compat.h for all remaining architectures tosimplify the dependencies.Architectures that are getting removed in linux-4.17 are not changedhere, to avoid needless conflicts with the removal patches. Thosearchitectures are broken by this patch, but we have already shownthat they have no users.Signed-off-by: Arnd Bergmann List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

e0af0c16 - arch: Remove clkdev.h asm-generic from Kbuild

Tue, 02 Jan 2018 23:50:06 +0000

arch: Remove clkdev.h asm-generic from KbuildNow that every architecture is using the generic clkdev.h fileand we no longer include asm/clkdev.h anywhere in the tree, wecan remove it.Cc: Russell King Acked-by: Arnd Bergmann Cc: Acked-by: Geert Uytterhoeven [m68k]Signed-off-by: Stephen Boyd List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

3beb4256 - nios2: move generic-y of exported headers to uapi/asm/Kbuild

Sun, 09 Jul 2017 18:32:50 +0000

nios2: move generic-y of exported headers to uapi/asm/KbuildSince commit fcc8487d477a ("uapi: export all headers under uapidirectories"), all (and only) headers under uapi directories areexported, but asm-generic wrappers are still exceptions.To complete de-coupling the uapi from kernel headers, move generic-yof exported headers to uapi/asm/Kbuild.With this change, "make headers_install" will just need to parseuapi/asm/Kbuild to build up exported headers.Also, move "generic-y += kprobes.h" up in order to keep the entriessorted.Signed-off-by: Masahiro Yamada Reviewed-by: Tobias Klauser List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

770c0d86 - nios2: remove unneeded arch/nios2/include/(generated/)asm/signal.h

Sun, 09 Jul 2017 18:32:49 +0000

nios2: remove unneeded arch/nios2/include/(generated/)asm/signal.hCurrently, NIOS2 has three signal.h files under arch/nios2/include:[1] arch/nios2/include/asm/signal.h[2] arch/nios2/include/uapi/asm/signal.h[3] arch/nios2/include/generated/asm/signal.h[3] is build-time generated by scripts/Makefile.asm-generic.However, -I$(srctree)/arch/$(hdr-arch)/include search path is listedbefore -I$(objtree)/arch/$(hdr-arch)/include/generated in LINUXINCLUDE.Therefore [1] is always included instead of [3]. Remove [3] whichis never included.If we look at [1], it just includes [2]. So, [1] can be removedas well.Signed-off-by: Masahiro Yamada Reviewed-by: Tobias Klauser List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

6bc51cba - signal: Remove non-uapi

Sat, 03 Jun 2017 19:01:02 +0000

signal: Remove non-uapi By moving the kernel side __SI_* defintions right next to the userspaceones we can kill the non-uapi versions of includeinclude/asm-generic/siginfo.h and untangle the unholy mess of includes.[ tglx: Removed uapi/asm/siginfo.h from m32r, microblaze, mn10300 and score ]Signed-off-by: Christoph Hellwig Signed-off-by: Thomas Gleixner Cc: linux-arch@vger.kernel.orgCc: Fenghua Yu Cc: Tony Luck Cc: linux-ia64@vger.kernel.orgCc: Arnd Bergmann Cc: sparclinux@vger.kernel.orgCc: "David S. Miller" Link: http://lkml.kernel.org/r/20170603190102.28866-6-hch@lst.de List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

f679b311 - nios2: remove wrapper header for cmpxchg.h

Mon, 03 Apr 2017 03:08:40 +0000

nios2: remove wrapper header for cmpxchg.hSince commit 713e9b802e21 ("nios2: Switch to generic __xchg()")asm/cmpxchg.h for nios2 is merely including asm-generic/cmpxchg.h. Thus,the wrapper can be omitted and the generic header can be used directly.Signed-off-by: Tobias Klauser Acked-by: Ley Foon Tan List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

981db65b - nios2: switch to generic extable.h

Sun, 25 Dec 2016 08:33:03 +0000

nios2: switch to generic extable.hSigned-off-by: Al Viro List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

7d134b2c - kprobes: move kprobe declarations to asm-generic/kprobes.h

Mon, 27 Feb 2017 22:26:56 +0000

kprobes: move kprobe declarations to asm-generic/kprobes.hOften all is needed is these small helpers, instead of compiler.h or afull kprobes.h. This is important for asm helpers, in fact even someasm/kprobes.h make use of these helpers... instead just keep a genericasm file with helpers useful for asm code with the least amount ofclutter as possible.Likewise we need now to also address what to do about this file for bothwhen architectures have CONFIG_HAVE_KPROBES, and when they do not. Thenfor when architectures have CONFIG_HAVE_KPROBES but have disabledCONFIG_KPROBES.Right now most asm/kprobes.h do not have guards against CONFIG_KPROBES,this means most architecture code cannot include asm/kprobes.h safely.Correct this and add guards for architectures missing them.Additionally provide architectures that not have kprobes support withthe default asm-generic solution. This lets us force asm/kprobes.h onthe header include/linux/kprobes.h always, but most importantly we cannow safely include just asm/kprobes.h on architecture code withoutbringing the full kitchen sink of header files.Two architectures already provided a guard against CONFIG_KPROBES on itskprobes.h: sh, arch. The rest of the architectures needed gaurds added.We avoid including any not-needed headers on asm/kprobes.h unlesskprobes have been enabled.In a subsequent atomic change we can try now to remove compiler.h frominclude/linux/kprobes.h.During this sweep I've also identified a few architectures defining acommon macro needed for both kprobes and ftrace, that of the definitionof the breakput instruction up. Some refer to this asBREAKPOINT_INSTRUCTION. This must be kept outside of the #ifdefCONFIG_KPROBES guard.[mcgrof@kernel.org: fix arm64 build] Link: http://lkml.kernel.org/r/CAB=NE6X1WMByuARS4mZ1g9+W=LuVBnMDnh_5zyN0CLADaVh=Jw@mail.gmail.com[sfr@canb.auug.org.au: fixup for kprobes declarations moving] Link: http://lkml.kernel.org/r/20170214165933.13ebd4f4@canb.auug.org.auLink: http://lkml.kernel.org/r/20170203233139.32682-1-mcgrof@kernel.orgSigned-off-by: Luis R. Rodriguez Signed-off-by: Stephen Rothwell Acked-by: Masami Hiramatsu Cc: Arnd Bergmann Cc: Masami Hiramatsu Cc: Ananth N Mavinakayanahalli Cc: Anil S Keshavamurthy Cc: David S. Miller Cc: Ingo Molnar Cc: Thomas Gleixner Cc: H. Peter Anvin Cc: Andy Lutomirski Cc: Steven Rostedt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

b672592f - sched/cputime: Remove generic asm headers

Tue, 31 Jan 2017 03:09:51 +0000

sched/cputime: Remove generic asm headerscputime_t is now only used by two architectures: * powerpc (when CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y) * s390And since the core doesn't use it anymore, we don't need any arch supportfrom the others. So we can remove their stub implementations.A final cleanup would be to provide an efficient pure archimplementation of cputime_to_nsec() for s390 and powerpc and finallyremove include/linux/cputime.h .Signed-off-by: Frederic Weisbecker Cc: Benjamin Herrenschmidt Cc: Fenghua Yu Cc: Heiko Carstens Cc: Linus Torvalds Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Rik van Riel Cc: Stanislaw Gruszka Cc: Thomas Gleixner Cc: Tony Luck Cc: Wanpeng Li Link: http://lkml.kernel.org/r/1485832191-26889-36-git-send-email-fweisbec@gmail.comSigned-off-by: Ingo Molnar List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

f2abeef9 - mm: clean up per architecture MM hook header files

Fri, 17 Jul 2015 23:23:58 +0000

mm: clean up per architecture MM hook header filesCommit 2ae416b142b6 ("mm: new mm hook framework") introduced an emptyheader file (mm-arch-hooks.h) for every architecture, even those whichdoesn't need to define mm hooks.As suggested by Geert Uytterhoeven, this could be cleaned through the useof a generic header file included via each per architectureasm/include/Kbuild file.The PowerPC architecture is not impacted here since this architecture hasto defined the arch_remap MM hook.Signed-off-by: Laurent Dufour Suggested-by: Geert Uytterhoeven Acked-by: Geert Uytterhoeven Acked-by: Vineet Gupta Cc: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

a6e2f029 - Make asm/word-at-a-time.h available on all architectures

Wed, 29 Apr 2015 16:48:40 +0000

Make asm/word-at-a-time.h available on all architecturesAdded the x86 implementation of word-at-a-time to thegeneric version, which previously only supported big-endian.Omitted the x86-specific load_unaligned_zeropad(), which inany case is also not present for the existing BE-onlyimplementation of a word-at-a-time, and is only used underCONFIG_DCACHE_WORD_ACCESS.Added as a "generic-y" to the Kbuilds of all architecturesthat didn't previously have it.Signed-off-by: Chris Metcalf List of files: /linux-6.15/arch/nios2/include/asm/Kbuild

c546d5db - remove scatterlist.h generation from arch Kbuild files

Tue, 19 May 2015 06:36:29 +0000

remove scatterlist.h generation from arch Kbuild filesSigned-off-by: Christoph Hellwig Reported-by: Geert Uytterhoeven Signed-off-by: Jens Axboe List of files: /linux-6.15/arch/nios2/include/asm/Kbuild