Changes in sys_parisc32.c

403f17a3 - parisc: use generic sys_fanotify_mark implementation

Fri, 07 Jun 2024 11:40:45 +0000

parisc: use generic sys_fanotify_mark implementationThe sys_fanotify_mark() syscall on parisc uses the reverse word orderfor the two halves of the 64-bit argument compared to all syscalls onall 32-bit architectures. As far as I can tell, the problem is thatthe function arguments on parisc are sorted backwards (26, 25, 24, 23,...) compared to everyone else, so the calling conventions of using aneven/odd register pair in native word order result in the lower wordcoming first in function arguments, matching the expected behavioron little-endian architectures. The system call conventions howeverended up matching what the other 32-bit architectures do.A glibc cleanup in 2020 changed the userspace behavior in a way thathandles all architectures consistently, but this inadvertently brokeparisc32 by changing to the same method as everyone else.The change made it into glibc-2.35 and subsequently into debian 12(bookworm), which is the latest stable release. This means weneed to choose between reverting the glibc change or changing thekernel to match it again, but either hange will leave some systemsbroken.Pick the option that is more likely to help current and futureusers and change the kernel to match current glibc. This alsomeans the behavior is now consistent across architectures, butit breaks running new kernels with old glibc builds before 2.35.Link: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=d150181d73d9Link: https://git.kernel.org/pub/scm/linux/kernel/git/history/history.git/commit/arch/parisc/kernel/sys_parisc.c?h=57b1dfbd5b4a39dCc: Adhemerval Zanella Tested-by: Helge Deller Acked-by: Helge Deller Signed-off-by: Arnd Bergmann ---I found this through code inspection, please double-check to makesure I got the bug and the fix right.The alternative is to fix this by reverting glibc back to theunusual behavior. List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

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/parisc/kernel/sys_parisc32.c

fe22ddcb - parisc: drop unused defines and header includes

Thu, 10 Jul 2014 16:08:11 +0000

parisc: drop unused defines and header includesSigned-off-by: Helge Deller Cc: stable@vger.kernel.org # 3.13+ List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

ab8a261b - parisc: fix fanotify_mark() syscall on 32bit compat kernel

Thu, 10 Jul 2014 16:07:17 +0000

parisc: fix fanotify_mark() syscall on 32bit compat kernelOn parisc we can not use the existing compat implementation for fanotify_mark()because for the 64bit mask parameter the higher and lower 32bits are ordereddifferently than what the compat function expects from big endianarchitectures.Specifically:It finally turned out, that on hppa we end up with different assignmentsof parameters to kernel arguments depending on if we call the glibcwrapper function int fanotify_mark (int __fanotify_fd, unsigned int __flags, uint64_t __mask, int __dfd, const char *__pathname);or directly calling the syscall manually syscall(__NR_fanotify_mark, ...)Reason is, that the syscall() function is implemented as C-function andbecause we now have the sysno as first parameter in front of the otherparameters the compiler will unexpectedly add an empty paramenter infront of the u64 value to ensure the correct calling alignment for 64bitvalues.This means, on hppa you can't simply use syscall() to call the kernelfanotify_mark() function directly, but you have to use the glibcfunction instead.This patch fixes the kernel in the hppa-arch specifc coding to adjustthe parameters in a way as if userspace calls the glibc wrapper functionfanotify_mark().Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # 3.13+ List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

5a0ce2dc - parisc: Remove arch/parisc/kernel/sys32.h header

Sun, 28 Jul 2013 21:49:53 +0000

parisc: Remove arch/parisc/kernel/sys32.h headerThe KERNEL_SYSCALL define is not used anymore so the header can beremoved.Signed-off-by: John David Anglin Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

91c2e0bc - unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE

Wed, 06 Mar 2013 01:10:59 +0000

unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINESigned-off-by: Al Viro List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

e1fd1f49 - get rid of union semop in sys_semctl(2) arguments

Tue, 05 Mar 2013 20:04:55 +0000

get rid of union semop in sys_semctl(2) argumentsjust have the bugger take unsigned long and deal with SETVALcase (when we use an int member in the union) explicitly.Signed-off-by: Al Viro List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

d5dc77bf - consolidate compat lookup_dcookie()

Mon, 25 Feb 2013 23:42:04 +0000

consolidate compat lookup_dcookie()Signed-off-by: Al Viro List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

19f4fc3a - convert sendfile{,64} to COMPAT_SYSCALL_DEFINE

Sun, 24 Feb 2013 07:17:03 +0000

convert sendfile{,64} to COMPAT_SYSCALL_DEFINESigned-off-by: Al Viro List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

561c6731 - switch lseek to COMPAT_SYSCALL_DEFINE

Sun, 24 Feb 2013 15:52:26 +0000

switch lseek to COMPAT_SYSCALL_DEFINESigned-off-by: Al Viro List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

f03d70a7 - parisc: sendfile and sendfile64 syscall cleanups

Tue, 19 Feb 2013 21:55:17 +0000

parisc: sendfile and sendfile64 syscall cleanupsUtilize the existing compat_sys_sendfile function for 64bit kernel and addwrappers for sendfile and sendfile64 to correctly handle the 32/64 bit signextension.Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

e27da28a - parisc: switch to available compat_sched_rr_get_interval implementation

Tue, 19 Feb 2013 20:42:45 +0000

parisc: switch to available compat_sched_rr_get_interval implementationSigned-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

4474a331 - parisc: fix fallocate syscall

Tue, 19 Feb 2013 20:23:59 +0000

parisc: fix fallocate syscallfallocate(off_t) gets redirected by glibc to fallocate64(loff_t)where the 64bit loff_t values get splitted into two 32bit (hi/lo)values. This patch fixes this syscall for the 32- and 64bit kernel.Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

bf581e15 - parisc: convert msgrcv and msgsnd syscalls to use compat layer

Tue, 19 Feb 2013 19:47:37 +0000

parisc: convert msgrcv and msgsnd syscalls to use compat layerSwitch over to use the existing compat_* implementation for msgrcv() andmsgsnd(). Existing code was even partly buggy since it returned on some pathsdifferent error codes than the standard.Signed-off-by: Helge Deller List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

d914b8dc - parisc: switch to generic compat sched_rr_get_interval()

Tue, 25 Dec 2012 22:33:02 +0000

parisc: switch to generic compat sched_rr_get_interval()Signed-off-by: Al Viro List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

7f1f311a - parisc: switch to generic sys_execve()

Thu, 04 Oct 2012 12:34:57 +0000

parisc: switch to generic sys_execve()Signed-off-by: Al Viro List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

91a27b2a - vfs: define struct filename and have getname() return it

Wed, 10 Oct 2012 19:25:28 +0000

vfs: define struct filename and have getname() return itgetname() is intended to copy pathname strings from userspace into akernel buffer. The result is just a string in kernel space. It wouldhowever be quite helpful to be able to attach some ancillary info tothe string.For instance, we could attach some audit-related info to reduce theamount of audit-related processing needed. When auditing is enabled,we could also call getname() on the string more than once and notneed to recopy it from userspace.This patchset converts the getname()/putname() interfaces to returna struct instead of a string. For now, the struct just tracks thestring in kernel space and the original userland pointer for it.Later, we'll add other information to the struct as it becomesconvenient.Signed-off-by: Jeff Layton Signed-off-by: Al Viro List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

1824074b - [PARISC] wire up fanotify syscalls

Fri, 15 Apr 2011 15:55:44 +0000

[PARISC] wire up fanotify syscallsCc: stable@kernel.orgSigned-off-by: James Bottomley List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

451a3c24 - BKL: remove extraneous #include

Wed, 17 Nov 2010 15:26:55 +0000

BKL: remove extraneous #include The big kernel lock has been removed from all these files at some point,leaving only the #include.Remove this too as a cleanup.Signed-off-by: Arnd Bergmann Signed-off-by: Linus Torvalds List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c

ec346449 - parsic: remove un-used nfsd #includes

Thu, 03 Dec 2009 18:29:39 +0000

parsic: remove un-used nfsd #includesSome un-used includes removed.This patch is in an effort to cleanup nfsd headers and moveprivate definitions to source directory.Signed-off-by: Boaz Harrosh Tested-by: Grant Grundler Acked-by: Helge Deller Signed-off-by: J. Bruce Fields List of files: /linux-6.15/arch/parisc/kernel/sys_parisc32.c