Changes in Makefile

0f60a8ac - sparc/crc32: expose CRC32 functions through lib

Mon, 02 Dec 2024 01:08:35 +0000

sparc/crc32: expose CRC32 functions through libMove the sparc CRC32C assembly code into the lib directory and wire itup to the library interface. This allows it to be used without goingthrough the crypto API. It remains usable via the crypto API too viathe shash algorithms that use the library interface. Thus all thearch-specific "shash" code becomes unnecessary and is removed.Note: to see the diff from arch/sparc/crypto/crc32c_glue.c toarch/sparc/lib/crc32_glue.c, view this commit with 'git show -M10'.Reviewed-by: Ard Biesheuvel Link: https://lore.kernel.org/r/20241202010844.144356-11-ebiggers@kernel.orgSigned-off-by: Eric Biggers List of files: /linux-6.15/arch/sparc/lib/Makefile

802a8874 - sparc32: Use generic cmpdi2/ucmpdi2 variants

Sat, 24 Feb 2024 17:42:22 +0000

sparc32: Use generic cmpdi2/ucmpdi2 variantsUse the generic variants - the implementation is the same.As a nice side-effect fix the following warnings:cmpdi2.c: warning: no previous prototype for '__cmpdi2' [-Wmissing-prototypes]ucmpdi2.c: warning: no previous prototype for '__ucmpdi2' [-Wmissing-prototypes]Signed-off-by: Sam Ravnborg Fixes: 0fcb70851fbf ("Makefile.extrawarn: turn on missing-prototypes globally")Reviewed-by: Randy Dunlap Tested-by: Randy Dunlap # build-testedReviewed-by: Maciej W. Rozycki Tested-by: Maciej W. Rozycki # build-testedCc: "David S. Miller" Cc: Andreas Larsson Reviewed-by: Andreas Larsson Tested-by: Andreas Larsson Signed-off-by: Andreas Larsson Link: https://lore.kernel.org/r/20240224-sam-fix-sparc32-all-builds-v2-1-1f186603c5c4@ravnborg.org List of files: /linux-6.15/arch/sparc/lib/Makefile

0f0d2871 - arch: turn off -Werror for architectures with known warnings

Thu, 30 Nov 2023 08:07:38 +0000

arch: turn off -Werror for architectures with known warningsA couple of architectures enable -Werror for their own files regardless ofCONFIG_WERROR but also have known warnings that fail the build with-Wmissing-prototypes enabled by default:arch/alpha/lib/memcpy.c:153:8: error: no previous prototype for 'memcpy' [-Werror=missing-prototypes]arch/alpha/kernel/irq.c:96:1: error: no previous prototype for 'handle_irq' [-Werror=missing-prototypes]arch/mips/kernel/signal.c:673:17: error: no previous prototype for ‘sys_rt_sigreturn’ [-Werror=missing-prototypes]arch/mips/kernel/signal.c:636:17: error: no previous prototype for ‘sys_sigreturn’ [-Werror=missing-prototypes]arch/mips/kernel/syscall.c:51:16: error: no previous prototype for ‘sysm_pipe’ [-Werror=missing-prototypes]arch/mips/mm/fault.c:323:17: error: no previous prototype for ‘do_page_fault’ [-Werror=missing-prototypes]arch/sparc/vdso/vma.c:246:12: warning: no previous prototype for ‘init_vdso_image’ [-Wmissing-prototypes]varch/sparc/vdso/vdso32/../vclock_gettime.c:343:1: warning: no previous prototype for ‘__vdso_gettimeofday_stick’ [-Wmissing-prototypes]arch/sparc/vdso/vclock_gettime.c:343:1: warning: no previous prototype for ‘__vdso_gettimeofday_stick’ [-Wmissing-prototypes]arch/sparc/prom/p1275.c:52:6: warning: no previous prototype for ‘prom_cif_init’ [-Wmissing-prototypes]arch/sparc/prom/misc_64.c:165:5: warning: no previous prototype for ‘prom_get_mmu_ihandle’ [-Wmissing-prototypes]This appears to be an artifact from the times when this architecture codewas better maintained that most device drivers and before CONFIG_WERRORwas added. Now it just gets in the way, so remove all of these.Powerpc and x86 both still have their own Kconfig options to enable-Werror for some of their files. These architectures are bettermaintained than most and the options are easy to disable, so leave thoseuntouched.Link: https://lkml.kernel.org/r/4be73872-c1f5-4c31-8201-712c19290a22@app.fastmail.comSigned-off-by: Arnd Bergmann Reported-by: Stephen Rothwell Cc: "David S. Miller" Cc: Thomas Bogendoerfer Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/sparc/lib/Makefile

e5372cd5 - sparc64: Fix boot on T4 and later.

Wed, 29 Nov 2017 20:09:29 +0000

sparc64: Fix boot on T4 and later.If we don't put the NG4fls.o object into the same part ofthe link as the generic sparc64 objects for fls() and __fls()then the relocation in the branch we use for patching willnot fit.Move NG4fls.o into lib-y to fix this problem.Fixes: 46ad8d2d22c1 ("sparc64: Use sparc optimized fls and __fls for T4 and above")Signed-off-by: David S. Miller Reported-by: Anatoly Pugachev Tested-by: Anatoly Pugachev List of files: /linux-6.15/arch/sparc/lib/Makefile

70cbec0c - sparc64: SPARC optimized fls function

Wed, 11 Oct 2017 18:50:04 +0000

sparc64: SPARC optimized fls functionDefined SPARC optimized fls using lzcnt opcode.Signed-off-by: Vijay Kumar Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

be52bbe3 - sparc64: Define SPARC default __fls function

Wed, 11 Oct 2017 18:50:03 +0000

sparc64: Define SPARC default __fls function__fls will now require a boot time patching on T4 and above.Redefining it under arch/sparc/lib.Signed-off-by: Vijay Kumar Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

41413a60 - sparc64: Define SPARC default fls function

Wed, 11 Oct 2017 18:50:02 +0000

sparc64: Define SPARC default fls functionfls will now require a boot time patching on T4 and above.Redefining it under arch/sparc/lib.Signed-off-by: Vijay Kumar Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/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/sparc/lib/Makefile

b3a04ed5 - arch/sparc: Optimized memcpy, memset, copy_to_user, copy_from_user for M7/M8

Mon, 07 Aug 2017 23:52:51 +0000

arch/sparc: Optimized memcpy, memset, copy_to_user, copy_from_user for M7/M8New algorithm that takes advantage of the M7/M8 block init storeASI, ie, overlapping pipelines and miss buffer filling.Full details in code comments.Signed-off-by: Babu Moger Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

de5c073e - arch/sparc: Separate the exception handlers from NG4memcpy

Mon, 07 Aug 2017 23:52:49 +0000

arch/sparc: Separate the exception handlers from NG4memcpySeparate the exception handlers from NG4memcpy so that it can beused with new memcpy routines. Make a separate file for all these handlers.Signed-off-by: Babu Moger Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

1b4af13f - sparc64: Add __multi3 for gcc 7.x and later.

Mon, 05 Jun 2017 18:28:57 +0000

sparc64: Add __multi3 for gcc 7.x and later.Reported-by: Waldemar Brodkorb Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

0fd0ff01 - sparc64: Delete now unused user copy fixup functions.

Tue, 25 Oct 2016 04:25:31 +0000

sparc64: Delete now unused user copy fixup functions.Now that all of the user copy routines are converted to returnaccurate residual lengths when an exception occurs, we no longer needthe broken fixup routines.Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

d3867f04 - sparc: move exports to definitions

Sun, 17 Jan 2016 02:39:30 +0000

sparc: move exports to definitionsAcked-by: David S. Miller Signed-off-by: Al Viro List of files: /linux-6.15/arch/sparc/lib/Makefile

e1039fb4 - sparc32: introduce asm-generic/io.h

Sat, 26 Apr 2014 07:57:36 +0000

sparc32: introduce asm-generic/io.hUse asm-generic/io.h definitions where applicable.The inxx() and outxx() methods whcih was duplicated in pcic.c +leon_pci.c are replaced by a set of static inlins from asm-generic/io.hiomap.c is replaced by the generic versions, but are stillpresent to support sparc64.Signed-off-by: Sam Ravnborg Cc: Daniel Hellstrom Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

446f24d1 - Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS

Tue, 30 Apr 2013 22:28:42 +0000

Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKSThe help text for this config is duplicated across the x86, parisc, ands390 Kconfig.debug files. Arnd Bergman noted that the help text wasslightly misleading and should be fixed to state that enabling thisoption isn't a problem when using pre 4.4 gcc.To simplify the rewording, consolidate the text into lib/Kconfig.debugand modify it there to be more explicit about when you should say N tothis config.Also, make the text a bit more generic by stating that this optionenables compile time checks so we can cover architectures which emitwarnings vs. ones which emit errors. The details of how anarchitecture decided to implement the checks isn't as important as theconcept of compile time checking of copy_from_user() calls.While we're doing this, remove all the copy_from_user_overflow() codethat's duplicated many times and place it into lib/ so that anyarchitecture supporting this option can get the function for free.Signed-off-by: Stephen Boyd Acked-by: Arnd Bergmann Acked-by: Ingo Molnar Acked-by: H. Peter Anvin Cc: Arjan van de Ven Acked-by: Helge Deller Cc: Heiko Carstens Cc: Stephen Rothwell Cc: Chris Metcalf Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/sparc/lib/Makefile

9f825962 - sparc64: Niagara-4 bzero/memset, plus use MRU stores in page copy.

Fri, 05 Oct 2012 20:45:26 +0000

sparc64: Niagara-4 bzero/memset, plus use MRU stores in page copy.This adds optimized memset/bzero/page-clear routines for Niagara-4.We basically can do what powerpc has been able to do for a decade (viathe "dcbz" instruction), which is use cache line clearing stores forbzero and memsets with a 'c' argument of zero.As long as we make the cache initializing store to each 32-bytesubblock of the L2 cache line, it works.As with other Niagara-4 optimized routines, the key is to make sure toavoid any usage of the %asi register, as reads and writes to it costat least 50 cycles.For the user clear cases, we don't use these new routines, we use theNiagara-1 variants instead. Those have to use %asi in an unavoidableway.A Niagara-4 8K page clear costs just under 600 cycles.Add definitions of the MRU variants of the cache initializing storeASIs. By default, cache initializing stores install the line as LeastRecently Used. If we know we're going to use the data immediately(which is true for page copies and clears) we can use the MostRecently Used variant, to decrease the likelyhood of the lines beingevicted before they get used.Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

ae2c6ca6 - sparc64: Add SPARC-T4 optimized memcpy.

Thu, 27 Sep 2012 04:11:01 +0000

sparc64: Add SPARC-T4 optimized memcpy. Before After -------------- --------------bw_tcp: 1288.53 MB/sec 1637.77 MB/secbw_pipe: 1517.18 MB/sec 2107.61 MB/secbw_unix: 1838.38 MB/sec 2640.91 MB/secmake -s -j128allmodconfig 5min 49sec 5min 31secSigned-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

2c66f623 - sparc: use the new generic strnlen_user() function

Sat, 26 May 2012 18:14:27 +0000

sparc: use the new generic strnlen_user() functionThis throws away the sparc-specific functions in favor of the genericoptimized version.Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/sparc/lib/Makefile

ff06dffb - sparc: Add full proper error handling to strncpy_from_user().

Wed, 23 May 2012 00:53:19 +0000

sparc: Add full proper error handling to strncpy_from_user().Linus removed the end-of-address-space hackery fromfs/namei.c:do_getname() so we really have to validate these edgeconditions and cannot cheat any more (as x86 used to as well).Move to a common C implementation like x86 did. And if bothsrc and dst are sufficiently aligned we'll do word at a timecopies and checks as well.Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile

74c7b289 - sparc32: Add ucmpdi2.o to obj-y instead of lib-y.

Sat, 19 May 2012 22:27:01 +0000

sparc32: Add ucmpdi2.o to obj-y instead of lib-y.Otherwise if no references exist in the static kernel image,we won't export the symbol properly to modules.Signed-off-by: David S. Miller List of files: /linux-6.15/arch/sparc/lib/Makefile