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5ad4e94b |
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01-Mar-2021 |
Masahiro Yamada <masahiroy@kernel.org> |
sparc: syscalls: switch to generic syscalltbl.sh Many architectures duplicate similar shell scripts. This commit converts sparc to use scripts/syscalltbl.sh. This also unifies syscall_table_64.h and syscall_table_c32.h. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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#
36800330 |
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13-Nov-2018 |
Firoz Khan <firoz.khan@linaro.org> |
sparc: generate uapi header and system call table files System call table generation script must be run to gener- ate unistd_32/64.h and syscall_table_32/64/c32.h files. This patch will have changes which will invokes the script. This patch will generate unistd_32/64.h and syscall_table- _32/64/c32.h files by the syscall table generation script invoked by parisc/Makefile and the generated files against the removed files must be identical. The generated uapi header file will be included in uapi/- asm/unistd.h and generated system call table header file will be included by kernel/systbls_32/64.S file. Signed-off-by: Firoz Khan <firoz.khan@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
1f2b5b8e |
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31-Oct-2018 |
David S. Miller <davem@davemloft.net> |
sparc64: Wire up compat getpeername and getsockname. Fixes: 8b30ca73b7cc ("sparc: Add all necessary direct socket system calls.") Reported-by: Joseph Myers <joseph@codesourcery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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7c26701a |
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09-Oct-2018 |
David S. Miller <davem@davemloft.net> |
sparc: Wire up io_pgetevents system call. Signed-off-by: David S. Miller <davem@davemloft.net>
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3d0e354e |
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20-Mar-2018 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc: switch compat {f,}truncate64() to COMPAT_SYSCALL_DEFINE ... and drop the pointless checks - sys_truncate() itself might've lacked the check when that stuff was first written, but it has already grown one by the time that stuff went into mainline. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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8c82ccd6 |
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19-Mar-2018 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc: switch compat pread64 and pwrite64 to COMPAT_SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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8ccb0046 |
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19-Mar-2018 |
Al Viro <viro@zeniv.linux.org.uk> |
convert compat sync_file_range() to COMPAT_SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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#
a00a700b |
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19-Mar-2018 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc: get rid of remaining SIGN... wrappers just convert compat_sys_{readahead,fadvise64,fadvise64_64} to COMPAT_SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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dd19958c |
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19-Mar-2018 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc: kill useless SIGN... wrappers SYSCALL_DEFINE and COMPAT_SYSCALL_DEFINE already give argument normalization. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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b2441318 |
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01-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license 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 binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the 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 cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base 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 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately 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 license identifiers 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 the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version 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 correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
f6ebf0bb |
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23-Apr-2017 |
David S. Miller <davem@davemloft.net> |
sparc: Update syscall tables. Hook up statx. Ignore pkeys system calls, we don't have protection keeys on SPARC. Signed-off-by: David S. Miller <davem@davemloft.net>
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5ec71293 |
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29-Mar-2016 |
David S. Miller <davem@davemloft.net> |
sparc: Write up preadv2/pwritev2 syscalls. Signed-off-by: David S. Miller <davem@davemloft.net>
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c10910c3 |
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21-Jan-2016 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up copy_file_range syscall. Signed-off-by: David S. Miller <davem@davemloft.net>
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42d85c52 |
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31-Dec-2015 |
David S. Miller <davem@davemloft.net> |
sparc: Wire up mlock2 system call. Signed-off-by: David S. Miller <davem@davemloft.net>
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8b30ca73 |
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31-Dec-2015 |
David S. Miller <davem@davemloft.net> |
sparc: Add all necessary direct socket system calls. The GLIBC folks would like to eliminate socketcall support eventually, and this makes sense regardless so wire them all up. Signed-off-by: David S. Miller <davem@davemloft.net>
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9bcfd78a |
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20-Nov-2015 |
Mike Kravetz <mike.kravetz@oracle.com> |
sparc: Hook up userfaultfd system call After hooking up system call, userfaultfd selftest was successful for both 32 and 64 bit version of test. Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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9c2d5eeb |
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09-Nov-2015 |
Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
sparc/sparc64: allocate sys_membarrier system call number Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Acked-by: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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38351a32 |
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12-Dec-2014 |
David Drysdale <drysdale@google.com> |
sparc: hook up execveat system call Signed-off-by: David Drysdale <drysdale@google.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
c20ce793 |
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28-Oct-2014 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up bpf system call. Signed-off-by: David S. Miller <davem@davemloft.net>
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10cf15e1 |
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13-Aug-2014 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up memfd_create system call. Signed-off-by: David S. Miller <davem@davemloft.net>
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caa9199b |
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06-Aug-2014 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up seccomp and getrandom system calls. Signed-off-by: David S. Miller <davem@davemloft.net>
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#
26053926 |
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21-Jul-2014 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up renameat2 syscall. Signed-off-by: David S. Miller <davem@davemloft.net>
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a54983ae |
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29-Jan-2014 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up sched_setattr and sched_getattr syscalls. Signed-off-by: David S. Miller <davem@davemloft.net>
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91c2e0bc |
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05-Mar-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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d5dc77bf |
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25-Feb-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
consolidate compat lookup_dcookie() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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#
76b021d0 |
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02-Mar-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
convert vmsplice to COMPAT_SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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8d2d5c4a |
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02-Mar-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
switch getrusage() to COMPAT_SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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19f4fc3a |
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24-Feb-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
convert sendfile{,64} to COMPAT_SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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3f6d078d |
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24-Feb-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
fix compat truncate/ftruncate Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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561c6731 |
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24-Feb-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
switch lseek to COMPAT_SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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aee41fe2 |
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24-Feb-2013 |
Al Viro <viro@zeniv.linux.org.uk> |
lseek() and truncate() on sparc really need sign extension ftruncate() doesn't - it's declared with size as unsigned long, but truncate() and lseek() have that argument as signed long. IOW, these two really need sign extension + branch to native syscall; argument validation in sys_... does *not* suffice. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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7540c8eb |
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24-Dec-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINE Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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5250a8bb |
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24-Dec-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc: kill sign-extending wrappers for native syscalls SYSCALL_DEFINE-added wrapper will take care of those just fine; no extra compat wrappers needed. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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55bb5a1e |
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25-Dec-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc: switch to generic compat rt_sigpending() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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99b06feb |
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23-Dec-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc: switch to generic sigaltstack Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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4e4d78f1 |
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28-Dec-2012 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up finit_module syscall. Signed-off-by: David S. Miller <davem@davemloft.net>
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de7531e8 |
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03-Dec-2012 |
David S. Miller <davem@davemloft.net> |
sparc64: exit_group should kill register windows just like plain exit. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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1df35f80 |
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28-Oct-2012 |
David S. Miller <davem@davemloft.net> |
sparc: Wire up sys_kcmp. Signed-off-by: David S. Miller <davem@davemloft.net>
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517ffce4 |
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26-Oct-2012 |
David S. Miller <davem@davemloft.net> |
sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads. The Montgomery Multiply, Montgomery Square, and Multiple-Precision Multiply instructions work by loading a combination of the floating point and multiple register windows worth of integer registers with the inputs. These values are 64-bit. But for 32-bit userland processes we only save the low 32-bits of each integer register during a register spill. This is because the register window save area is in the user stack and has a fixed layout. Therefore, the only way to use these instruction in 32-bit mode is to perform the following sequence: 1) Load the top-32bits of a choosen integer register with a sentinel, say "-1". This will be in the outer-most register window. The idea is that we're trying to see if the outer-most register window gets spilled, and thus the 64-bit values were truncated. 2) Load all the inputs for the montmul/montsqr/mpmul instruction, down to the inner-most register window. 3) Execute the opcode. 4) Traverse back up to the outer-most register window. 5) Check the sentinel, if it's still "-1" store the results. Otherwise retry the entire sequence. This retry is extremely troublesome. If you're just unlucky and an interrupt or other trap happens, it'll push that outer-most window to the stack and clear the sentinel when we restore it. We could retry forever and never make forward progress if interrupts arrive at a fast enough rate (consider perf events as one example). So we have do limited retries and fallback to software which is extremely non-deterministic. Luckily it's very straightforward to provide a mechanism to let 32-bit applications use a 64-bit stack. Stacks in 64-bit mode are biased by 2047 bytes, which means that the lowest bit is set in the actual %sp register value. So if we see bit zero set in a 32-bit application's stack we treat it like a 64-bit stack. Runtime detection of such a facility is tricky, and cumbersome at best. For example, just trying to use a biased stack and seeing if it works is hard to recover from (the signal handler will need to use an alt stack, plus something along the lines of longjmp). Therefore, we add a system call to report a bitmask of arch specific features like this in a cheap and less hairy way. With help from Andy Polyakov. Signed-off-by: David S. Miller <davem@davemloft.net>
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eb48ffcf |
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26-Sep-2012 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc64: convert to generic execve We still have wrappers, but nowhere near as scary as they used to be. I'm not sure how necessary that flushw is now, TBH... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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45de6767 |
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11-May-2012 |
David Howells <dhowells@redhat.com> |
KEYS: Use the compat keyctl() syscall wrapper on Sparc64 for Sparc32 compat Use the 32-bit compat keyctl() syscall wrapper on Sparc64 for Sparc32 binary compatibility. Without this, keyctl(KEYCTL_INSTANTIATE_IOV) is liable to malfunction as it uses an iovec array read from userspace - though the kernel should survive this as it checks pointers and sizes anyway. I think all the other keyctl() function should just work, provided (a) the top 32-bits of each 64-bit argument register are cleared prior to invoking the syscall routine, and the 32-bit address space is right at the 0-end of the 64-bit address space. Most of the arguments are 32-bit anyway, and so for those clearing is not required. Signed-off-by: David Howells <dhowells@redhat.com cc: "David S. Miller" <davem@davemloft.net> cc: sparclinux@vger.kernel.org cc: stable@vger.kernel.org
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51ce185a |
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01-Nov-2011 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up process_vm_{readv,writev} syscalls. Signed-off-by: David S. Miller <davem@davemloft.net>
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2ee04a10 |
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28-Aug-2011 |
Stephen Rothwell <sfr@canb.auug.org.au> |
sparc: Remove another reference to nfsservctl Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
f5b94099 |
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26-Aug-2011 |
NeilBrown <neilb@suse.de> |
All Arch: remove linkage for sys_nfsservctl system call The nfsservctl system call is now gone, so we should remove all linkage for it. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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7b21fddd |
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27-May-2011 |
Eric W. Biederman <ebiederm@xmission.com> |
ns: Wire up the setns system call 32bit and 64bit on x86 are tested and working. The rest I have looked at closely and I can't find any problems. setns is an easy system call to wire up. It just takes two ints so I don't expect any weird architecture porting problems. While doing this I have noticed that we have some architectures that are very slow to get new system calls. cris seems to be the slowest where the last system calls wired up were preadv and pwritev. avr32 is weird in that recvmmsg was wired up but never declared in unistd.h. frv is behind with perf_event_open being the last syscall wired up. On h8300 the last system call wired up was epoll_wait. On m32r the last system call wired up was fallocate. mn10300 has recvmmsg as the last system call wired up. The rest seem to at least have syncfs wired up which was new in the 2.6.39. v2: Most of the architecture support added by Daniel Lezcano <dlezcano@fr.ibm.com> v3: ported to v2.6.36-rc4 by: Eric W. Biederman <ebiederm@xmission.com> v4: Moved wiring up of the system call to another patch v5: ported to v2.6.39-rc6 v6: rebased onto parisc-next and net-next to avoid syscall conflicts. v7: ported to Linus's latest post 2.6.39 tree. > arch/blackfin/include/asm/unistd.h | 3 ++- > arch/blackfin/mach-common/entry.S | 1 + Acked-by: Mike Frysinger <vapier@gentoo.org> Oh - ia64 wiring looks good. Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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228e548e |
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02-May-2011 |
Anton Blanchard <anton@samba.org> |
net: Add sendmmsg socket system call This patch adds a multiple message send syscall and is the send version of the existing recvmmsg syscall. This is heavily based on the patch by Arnaldo that added recvmmsg. I wrote a microbenchmark to test the performance gains of using this new syscall: http://ozlabs.org/~anton/junkcode/sendmmsg_test.c The test was run on a ppc64 box with a 10 Gbit network card. The benchmark can send both UDP and RAW ethernet packets. 64B UDP batch pkts/sec 1 804570 2 872800 (+ 8 %) 4 916556 (+14 %) 8 939712 (+17 %) 16 952688 (+18 %) 32 956448 (+19 %) 64 964800 (+20 %) 64B raw socket batch pkts/sec 1 1201449 2 1350028 (+12 %) 4 1461416 (+22 %) 8 1513080 (+26 %) 16 1541216 (+28 %) 32 1553440 (+29 %) 64 1557888 (+30 %) We see a 20% improvement in throughput on UDP send and 30% on raw socket send. [ Add sparc syscall entries. -DaveM ] Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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#
97c278e3 |
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30-Mar-2011 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up syncfs system call. Signed-off-by: David S. Miller <davem@davemloft.net>
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#
b3f80f6d |
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18-Mar-2011 |
David S. Miller <davem@davemloft.net> |
sparc: Add {open_by,name_to}_handle_at and clock_adjtime syscalls. Signed-off-by: David S. Miller <davem@davemloft.net>
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#
8e8073a4 |
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16-Aug-2010 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up new fanotify and prlimit64 syscalls. The only tricky bit is the compat version of fanotify_mark, which which on 32-bit the 64-bit mark argument is passed in as "high32", "low32". Signed-off-by: David S. Miller <davem@davemloft.net>
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#
e28cbf22 |
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10-Mar-2010 |
Christoph Hellwig <hch@lst.de> |
improve sys_newuname() for compat architectures On an architecture that supports 32-bit compat we need to override the reported machine in uname with the 32-bit value. Instead of doing this separately in every architecture introduce a COMPAT_UTS_MACHINE define in <asm/compat.h> and apply it directly in sys_newuname(). Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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baed7fc9 |
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10-Mar-2010 |
Christoph Hellwig <hch@lst.de> |
Add generic sys_ipc wrapper Add a generic implementation of the ipc demultiplexer syscall. Except for s390 and sparc64 all implementations of the sys_ipc are nearly identical. There are slight differences in the types of the parameters, where mips and powerpc as the only 64-bit architectures with sys_ipc use unsigned long for the "third" argument as it gets casted to a pointer later, while it traditionally is an "int" like most other paramters. frv goes even further and uses unsigned long for all parameters execept for "ptr" which is a pointer type everywhere. The change from int to unsigned long for "third" and back to "int" for the others on frv should be fine due to the in-register calling conventions for syscalls (we already had a similar issue with the generic sys_ptrace), but I'd prefer to have the arch maintainers looks over this in details. Except for that h8300, m68k and m68knommu lack an impplementation of the semtimedop sub call which this patch adds, and various architectures have gets used - at least on i386 it seems superflous as the compat code on x86-64 and ia64 doesn't even bother to implement it. [akpm@linux-foundation.org: add sys_ipc to sys_ni.c] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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c7d5a005 |
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03-Mar-2010 |
David S. Miller <davem@davemloft.net> |
sparc64: Kill off old sys_perfctr system call and state. People should be using the perf events interfaces, and the way these system call facilities used the %pcr conflicts with the usage of the NMI watchdog and perf events. Signed-off-by: David S. Miller <davem@davemloft.net>
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05d72faa |
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03-Dec-2009 |
Al Viro <viro@zeniv.linux.org.uk> |
sparc_brk() is not needed anymore the checks it's doing are duplicated in sys_brk() and failing them early makes no sense, AFAICT. Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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0ec62d29 |
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24-Nov-2009 |
Al Viro <viro@zeniv.linux.org.uk> |
kill useless checks in sparc mremap variants Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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03102a4d |
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03-Apr-2009 |
Eric W. Biederman <ebiederm@xmission.com> |
sysctl: sparc Use the compat_sys_sysctl Now that we have a generic 32bit compatibility implementation there is no need for sparc to implement it's own. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
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a2e27255 |
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13-Oct-2009 |
Arnaldo Carvalho de Melo <acme@redhat.com> |
net: Introduce recvmmsg socket syscall Meaning receive multiple messages, reducing the number of syscalls and net stack entry/exit operations. Next patches will introduce mechanisms where protocols that want to optimize this operation will provide an unlocked_recvmsg operation. This takes into account comments made by: . Paul Moore: sock_recvmsg is called only for the first datagram, sock_recvmsg_nosec is used for the rest. . Caitlin Bestler: recvmmsg now has a struct timespec timeout, that works in the same fashion as the ppoll one. If the underlying protocol returns a datagram with MSG_OOB set, this will make recvmmsg return right away with as many datagrams (+ the OOB one) it has received so far. . Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen datagrams and then recvmsg returns an error, recvmmsg will return the successfully received datagrams, store the error and return it in the next call. This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg, where we will be able to acquire the lock only at batch start and end, not at every underlying recvmsg call. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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cdd6c482 |
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20-Sep-2009 |
Ingo Molnar <mingo@elte.hu> |
perf: Do the big rename: Performance Counters -> Performance Events Bye-bye Performance Counters, welcome Performance Events! In the past few months the perfcounters subsystem has grown out its initial role of counting hardware events, and has become (and is becoming) a much broader generic event enumeration, reporting, logging, monitoring, analysis facility. Naming its core object 'perf_counter' and naming the subsystem 'perfcounters' has become more and more of a misnomer. With pending code like hw-breakpoints support the 'counter' name is less and less appropriate. All in one, we've decided to rename the subsystem to 'performance events' and to propagate this rename through all fields, variables and API names. (in an ABI compatible fashion) The word 'event' is also a bit shorter than 'counter' - which makes it slightly more convenient to write/handle as well. Thanks goes to Stephane Eranian who first observed this misnomer and suggested a rename. User-space tooling and ABI compatibility is not affected - this patch should be function-invariant. (Also, defconfigs were not touched to keep the size down.) This patch has been generated via the following script: FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/PERF_EVENT_/PERF_RECORD_/g' \ -e 's/PERF_COUNTER/PERF_EVENT/g' \ -e 's/perf_counter/perf_event/g' \ -e 's/nb_counters/nb_events/g' \ -e 's/swcounter/swevent/g' \ -e 's/tpcounter_event/tp_event/g' \ $FILES for N in $(find . -name perf_counter.[ch]); do M=$(echo $N | sed 's/perf_counter/perf_event/g') mv $N $M done FILES=$(find . -name perf_event.*) sed -i \ -e 's/COUNTER_MASK/REG_MASK/g' \ -e 's/COUNTER/EVENT/g' \ -e 's/\<event\>/event_id/g' \ -e 's/counter/event/g' \ -e 's/Counter/Event/g' \ $FILES ... to keep it as correct as possible. This script can also be used by anyone who has pending perfcounters patches - it converts a Linux kernel tree over to the new naming. We tried to time this change to the point in time where the amount of pending patches is the smallest: the end of the merge window. Namespace clashes were fixed up in a preparatory patch - and some stylistic fallout will be fixed up in a subsequent patch. ( NOTE: 'counters' are still the proper terminology when we deal with hardware registers - and these sed scripts are a bit over-eager in renaming them. I've undone some of that, but in case there's something left where 'counter' would be better than 'event' we can undo that on an individual basis instead of touching an otherwise nicely automated patch. ) Suggested-by: Stephane Eranian <eranian@google.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Paul Mackerras <paulus@samba.org> Reviewed-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Howells <dhowells@redhat.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: <linux-arch@vger.kernel.org> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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825c9fb4 |
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04-Sep-2009 |
Jens Axboe <jens.axboe@oracle.com> |
sparc: add basic support for 'perf' This wires up the perf_counter_open() syscall so that basic software support for perf is working. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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9a926d86 |
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27-Jul-2009 |
David S. Miller <davem@davemloft.net> |
sparc64: Sign extend length arg to truncate syscalls when compat. The first thing sys_truncate() and sys_ftruncate() do is sign extend the unsigned length arg to a signed type. Thanks to Benjamin Herrenschmidt for the tip. Signed-off-by: David S. Miller <davem@davemloft.net>
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d1ae4ce3 |
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16-Jun-2009 |
David S. Miller <davem@davemloft.net> |
sparc: Wire up sys_rt_tgsigqueueinfo(). Signed-off-by: David S. Miller <davem@davemloft.net>
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018ef969 |
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08-Apr-2009 |
David S. Miller <davem@davemloft.net> |
sparc: Hook up sys_preadv and sys_pwritev Signed-off-by: David S. Miller <davem@davemloft.net>
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6e8a4fa6 |
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27-Mar-2009 |
David S. Miller <davem@davemloft.net> |
sparc64: We need to use compat_sys_ustat() as well. Sparc was missed in commit 2b1c6bd77d4e6a727ffac8630cd154b2144b751a ("generic compat_sys_ustat"). We definitely need it, since our __kernel_ino_t is "unsigned long". Signed-off-by: David S. Miller <davem@davemloft.net>
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e4265019 |
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19-Jan-2009 |
David S. Miller <davem@davemloft.net> |
sparc64: Annotate sparc64 specific syscalls with SYSCALL_DEFINEx() Signed-off-by: David S. Miller <davem@davemloft.net>
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1134723e |
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14-Jan-2009 |
Heiko Carstens <hca@linux.ibm.com> |
[CVE-2009-0029] Remove __attribute__((weak)) from sys_pipe/sys_pipe2 Remove __attribute__((weak)) from common code sys_pipe implemantation. IA64, ALPHA, SUPERH (32bit) and SPARC (32bit) have own implemantations with the same name. Just rename them. For sys_pipe2 there is no architecture specific implementation. Cc: Richard Henderson <rth@twiddle.net> Cc: David S. Miller <davem@davemloft.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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a88b5ba8 |
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03-Dec-2008 |
Sam Ravnborg <sam@ravnborg.org> |
sparc,sparc64: unify kernel/ o Move all files from sparc64/kernel/ to sparc/kernel - rename as appropriate o Update sparc/Makefile to the changes o Update sparc/kernel/Makefile to include the sparc64 files NOTE: This commit changes link order on sparc64! Link order had to change for either of sparc32 and sparc64. And assuming sparc64 see more testing than sparc32 change link order on sparc64 where issues will be caught faster. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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