- 12 Apr, 2017 5 commits
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Masami Hiramatsu authored
Use x86 instruction decoder for checking whether the probed instruction is able to boost or not, instead of hand-written code. Signed-off-by:
Masami Hiramatsu <mhiramat@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: David S . Miller <davem@davemloft.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ye Xiaolong <xiaolong.ye@intel.com> Link: http://lkml.kernel.org/r/149076354563.22469.13379472209338986858.stgit@devboxSigned-off-by:
Ingo Molnar <mingo@kernel.org>
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Masami Hiramatsu authored
Fix the description comment of __copy_instruction() function since it has already been changed to return the length of the copied instruction. Signed-off-by:
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Masami Hiramatsu authored
Fix the kprobe-booster not to boost far call instruction, because a call may store the address in the single-step execution buffer to the stack, which should be modified after single stepping. Currently, this instruction will be filtered as not boostable in resume_execution(), so this is not a critical issue. Signed-off-by:
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo-4.12-20170411' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core perf/core improvements and fixes: User visible changes: - Support s390 jump instructions in perf annotate (Christian Borntraeger) - When failing to setup multiple events (e.g. '-e irq_vectors:*'), state which one caused the failure (Yao Jin) - Various fixes for pipe mode, where the output of 'perf record' is written to stdout instead of to a perf.data file, fixing workloads such as: (David Carrillo-Cisneros) $ perf record -o - noploop | perf inject -b > perf.data $ perf record -o - noploop | perf annotate Infrastructure changes: - Simplify ltrim() implementation (Arnaldo Carvalho de Melo) - Use ltrim() and rtrim() in places where ad-hoc equivalents were being used (Taeung Song) Conflicts: tools/perf/util/annotate.c Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Ingo Molnar authored
Signed-off-by:
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- 11 Apr, 2017 23 commits
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Ingo Molnar authored
Merge tag 'perf-urgent-for-mingo-4.11-20170411' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull 'perf annotate' fix for s390: - The move to support cross arch annotation introduced per arch initialization requirements, fullfill them for s/390 (Christian Borntraeger) Signed-off-by:
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Taeung Song authored
When parsing disassemble lines for source line number, use a stripped line instead of raw line. Signed-off-by:
Taeung Song <treeze.taeung@gmail.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1491612748-1605-3-git-send-email-treeze.taeung@gmail.comSigned-off-by:
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Taeung Song authored
When parsing disassemble lines, use ltrim() and rtrim() to strip them, not using just while loop and isspace(). Signed-off-by:
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David Carrillo-Cisneros authored
Pipe-mode has no perf.data header, hence no upfront knowledge of presend and missing features, hence, do not print missing features in pipe-mode. Signed-off-by:
David Carrillo-Cisneros <davidcc@google.com> Acked-by:
Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: He Kuang <hekuang@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Paul Turner <pjt@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Simon Que <sque@chromium.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20170410201432.24807-8-davidcc@google.comSigned-off-by:
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David Carrillo-Cisneros authored
Session sets a number parameters that rely on evlist. These parameters are not used in pipe-mode and should not be set, since evlist is unavailable. Fix that. Signed-off-by:
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David Carrillo-Cisneros authored
perf annotate did not get some love for pipe-mode, and did not have .attr and .buil_id setup (while record and inject did. Fix that. It can easily be reproduced by: perf record -o - noploop | perf annotate that in my system shows: 0xd8 [0x28]: failed to process type: 9 Committer Testing: Before: $ perf record -o - stress -t 2 -c 2 | perf annotate --stdio stress: info: [11060] dispatching hogs: 2 cpu, 0 io, 0 vm, 0 hdd 0x4470 [0x28]: failed to process type: 9 $ stress: info: [11060] successful run completed in 2s $ After: $ perf record -o - stress -t 2 -c 2 | perf annotate --stdio stress: info: [11871] dispatching hogs: 2 cpu, 0 io, 0 vm, 0 hdd stress: info: [11871] successful run completed in 2s [ perf record: Woken up 2 times to write data ] [ perf record: Captured and wrote 0.000 MB - ] no symbols found in /usr/bin/stress, maybe install a debug package? Percent | Source code & Disassembly of libc-2.24.so for cycles:uhH (6117 samples) --------------------------------------------------------------------------------------- : : Disassembly of section .text: : : 000000000003b050 <random_r>: : __random_r(): 10.56 : 3b050: test %rdi,%rdi 0.00 : 3b053: je 3b0d0 <random_r+0x80> 0.34 : 3b055: test %rsi,%rsi 0.00 : 3b058: je 3b0d0 <random_r+0x80> 0.46 : 3b05a: mov 0x18(%rdi),%eax 12.44 : 3b05d: mov 0x10(%rdi),%r8 0.18 : 3b061: test %eax,%eax 0.00 : 3b063: je 3b0b0 <random_r+0x60> <SNIP> Signed-off-by: -
David Carrillo-Cisneros authored
Add a minimal description of pipe's data format. Signed-off-by:
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David Carrillo-Cisneros authored
__perf_session__process_pipe_events reuses the same memory buffer to process all events in the pipe. When reordering is needed (e.g. -b option), events are not immediately flushed, but kept around until reordering is possible, causing memory corruption. The problem is usually observed by a "Unknown sample error" output. It can easily be reproduced by: perf record -o - noploop | perf inject -b > output Committer testing: Before: $ perf record -o - stress -t 2 -c 2 | perf inject -b > /dev/null stress: info: [8297] dispatching hogs: 2 cpu, 0 io, 0 vm, 0 hdd stress: info: [8297] successful run completed in 2s [ perf record: Woken up 3 times to write data ] [ perf record: Captured and wrote 0.000 MB - ] Warning: Found 1 unknown events! Is this an older tool processing a perf.data file generated by a more recent tool? If that is not the case, consider reporting to linux-kernel@vger.kernel.org. $ After: $ perf record -o - stress -t 2 -c 2 | perf inject -b > /dev/null stress: info: [9027] dispatching hogs: 2 cpu, 0 io, 0 vm, 0 hdd stress: info: [9027] successful run completed in 2s [ perf record: Woken up 3 times to write data ] [ perf record: Captured and wrote 0.000 MB - ] no symbols found in /usr/bin/stress, maybe install a debug package? no symbols found in /usr/bin/stress, maybe install a debug package? $ Signed-off-by:
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David Carrillo-Cisneros authored
All paths following perf_session__process_event() in __cmd_inject() are useless if __cmd_inject() is to fail, some depend on a correct session->evlist. First commit to add code that depends on session->evlist without checking error was commmit e558a5bd ("perf inject: Work with files"). It has grown since then. Change __cmd_inject() to fail immediately after perf_session__process_event() fails. Signed-off-by:
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Christian Borntraeger authored
Implement simple detection for all kind of jumps and branches. Signed-off-by:
Christian Borntraeger <borntraeger@de.ibm.com> Cc: Andreas Krebbel <krebbel@linux.vnet.ibm.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-s390 <linux-s390@vger.kernel.org> Cc: stable@kernel.org # v4.10+ Link: http://lkml.kernel.org/r/1491465112-45819-3-git-send-email-borntraeger@de.ibm.comSigned-off-by:
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Christian Borntraeger authored
since 4.10 perf annotate exits on s390 with an "unknown error -95". Turns out that commit 786c1b51 ("perf annotate: Start supporting cross arch annotation") added a hard requirement for architecture support when objdump is used but only provided x86 and arm support. Meanwhile power was added so lets add s390 as well. While at it make sure to implement the branch and jump types. Signed-off-by:
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Arnaldo Carvalho de Melo authored
We don't need to use strlen(), a var, or check for the end explicitely, isspace('\0') is false: [acme@jouet c]$ cat ltrim.c #include <ctype.h> #include <stdio.h> static char *ltrim(char *s) { while (isspace(*s)) ++s; return s; } int main(void) { printf("ltrim(\"\")='%s'\n", ltrim("")); return 0; } [acme@jouet c]$ ./ltrim ltrim("")='' [acme@jouet c]$ Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Taeung Song <treeze.taeung@gmail.com> Link: http://lkml.kernel.org/n/tip-w3nk0x3pai2vojk2ab6kdvaw@git.kernel.orgSigned-off-by: -
Taeung Song authored
After reading command name from /proc/<pid>/status, use ltrim() and rtrim() to strip command name, not using just while loop, isspace() and etc. Signed-off-by:
David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1491575061-704-6-git-send-email-treeze.taeung@gmail.comSigned-off-by:
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Taeung Song authored
Signed-off-by:
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Taeung Song authored
When parsing {fore, back} ground color configs, use ltrim() instead of just while loop and isspace(). Signed-off-by: -
Taeung Song authored
To strip csv output, use ltrim() instead of just while loop and isspace() at print_metric_{only}_csv(). Signed-off-by: -
Jin Yao authored
The kernel has a special check for a specific irq_vectors trace event. TRACE_EVENT_PERF_PERM(irq_work_exit, is_sampling_event(p_event) ? -EPERM : 0); The perf-record fails for this irq_vectors event when it is present, like when using a wildcard: root@skl:/tmp# perf record -a -e irq_vectors:* sleep 2 Error: You may not have permission to collect system-wide stats. Consider tweaking /proc/sys/kernel/perf_event_paranoid, which controls use of the performance events system by unprivileged users (without CAP_SYS_ADMIN). The current value is 2: -1: Allow use of (almost) all events by all users >= 0: Disallow raw tracepoint access by users without CAP_IOC_LOCK >= 1: Disallow CPU event access by users without CAP_SYS_ADMIN >= 2: Disallow kernel profiling by users without CAP_SYS_ADMIN To make this setting permanent, edit /etc/sysctl.conf too, e.g.: kernel.perf_event_paranoid = -1 This patch prints out the exact sub event that failed with EPERM for wildcards to help in understanding what went wrong when this event is present: After the patch: root@skl:/tmp# perf record -a -e irq_vectors:* sleep 2 Error: No permission to enable irq_vectors:irq_work_exit event. You may not have permission to collect system-wide stats. ...... Committer notes: So we have a lot of irq_vectors events: [root@jouet ~]# perf list irq_vectors:* List of pre-defined events (to be used in -e): irq_vectors:call_function_entry [Tracepoint event] irq_vectors:call_function_exit [Tracepoint event] irq_vectors:call_function_single_entry [Tracepoint event] irq_vectors:call_function_single_exit [Tracepoint event] irq_vectors:deferred_error_apic_entry [Tracepoint event] irq_vectors:deferred_error_apic_exit [Tracepoint event] irq_vectors:error_apic_entry [Tracepoint event] irq_vectors:error_apic_exit [Tracepoint event] irq_vectors:irq_work_entry [Tracepoint event] irq_vectors:irq_work_exit [Tracepoint event] irq_vectors:local_timer_entry [Tracepoint event] irq_vectors:local_timer_exit [Tracepoint event] irq_vectors:reschedule_entry [Tracepoint event] irq_vectors:reschedule_exit [Tracepoint event] irq_vectors:spurious_apic_entry [Tracepoint event] irq_vectors:spurious_apic_exit [Tracepoint event] irq_vectors:thermal_apic_entry [Tracepoint event] irq_vectors:thermal_apic_exit [Tracepoint event] irq_vectors:threshold_apic_entry [Tracepoint event] irq_vectors:threshold_apic_exit [Tracepoint event] irq_vectors:x86_platform_ipi_entry [Tracepoint event] irq_vectors:x86_platform_ipi_exit [Tracepoint event] # And some may be sampled: [root@jouet ~]# perf record -e irq_vectors:local* sleep 20s [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.020 MB perf.data (2 samples) ] [root@jouet ~]# perf report -D | egrep 'stats:|events:' Aggregated stats: TOTAL events: 155 MMAP events: 144 COMM events: 2 EXIT events: 1 SAMPLE events: 2 MMAP2 events: 4 FINISHED_ROUND events: 1 TIME_CONV events: 1 irq_vectors:local_timer_entry stats: TOTAL events: 1 SAMPLE events: 1 irq_vectors:local_timer_exit stats: TOTAL events: 1 SAMPLE events: 1 [root@jouet ~]# But, as shown in the tracepoint definition at the start of this message, some, like "irq_vectors:irq_work_exit", may not be sampled, just counted, i.e. if we try to sample, as when using 'perf record', we get an error: [root@jouet ~]# perf record -e irq_vectors:irq_work_exit Error: You may not have permission to collect system-wide stats. Consider tweaking /proc/sys/kernel/perf_event_paranoid, <SNIP> The error message is misleading, this patch will help in pointing out what is the event causing such an error, but the error message needs improvement, i.e. we need to figure out a way to check if a tracepoint is counting only, like this one, when all we can do is to count it with 'perf stat', at most printing the delta using interval printing, as in: [root@jouet ~]# perf stat -I 5000 -e irq_vectors:irq_work_* # time counts unit events 5.000168871 0 irq_vectors:irq_work_entry 5.000168871 0 irq_vectors:irq_work_exit 10.000676730 0 irq_vectors:irq_work_entry 10.000676730 0 irq_vectors:irq_work_exit 15.001122415 0 irq_vectors:irq_work_entry 15.001122415 0 irq_vectors:irq_work_exit 20.001298051 0 irq_vectors:irq_work_entry 20.001298051 0 irq_vectors:irq_work_exit 25.001485020 1 irq_vectors:irq_work_entry 25.001485020 1 irq_vectors:irq_work_exit 30.001658706 0 irq_vectors:irq_work_entry 30.001658706 0 irq_vectors:irq_work_exit ^C 32.045711878 0 irq_vectors:irq_work_entry 32.045711878 0 irq_vectors:irq_work_exit [root@jouet ~]# But at least, when we use a wildcard, this patch helps a bit. Signed-off-by:Yao Jin <yao.jin@linux.intel.com> Tested-by:
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Arnaldo Carvalho de Melo authored
Just avoiding non-reentrant functions. Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/n/tip-eqytykipd74epzl9aexvppcg@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Trying to keep everything reentrant. Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-rdce0p2k9e1b4qnrb8ki9mtf@git.kernel.orgSigned-off-by:
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Borislav Petkov authored
Make it "perf/amd/uncore: ", i.e., something more specific than "perf: ". Signed-off-by:
Borislav Petkov <bp@suse.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: http://lkml.kernel.org/r/20170410122047.3026-4-bp@alien8.de [ Changed it to perf/amd/uncore/ ] Signed-off-by:
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Borislav Petkov authored
Fam16h is the same as the default one, remove it. Turn the switch-case into a simple if-else. No functionality change. Signed-off-by:
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Borislav Petkov authored
... and save some unnecessary work. Remove now unused label while at it. Signed-off-by:
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Ingo Molnar authored
Signed-off-by:
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- 10 Apr, 2017 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto fixes from Herbert Xu: "This fixes a number of bugs in the caam driver: - device creation fails after release - error-path NULL-pointer dereference - spurious hardware error in RNG deinstantiation" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: caam - fix RNG deinstantiation error checking crypto: caam - fix invalid dereference in caam_rsa_init_tfm() crypto: caam - fix JR platform device subsequent (re)creations
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- 09 Apr, 2017 6 commits
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Linus Torvalds authored
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull CIFS fixes from Steve French: "This is a set of CIFS/SMB3 fixes for stable. There is another set of four SMB3 reconnect fixes for stable in progress but they are still being reviewed/tested, so didn't want to wait any longer to send these five below" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: Reset TreeId to zero on SMB2 TREE_CONNECT CIFS: Fix build failure with smb2 Introduce cifs_copy_file_range() SMB3: Rename clone_range to copychunk_range Handle mismatched open calls
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "A number of ARM fixes: - prevent oopses caused by dma_get_sgtable() and declared DMA coherent memory - fix boot failure on nommu caused by ID_PFR1 access - a number of kprobes fixes from Jon Medhurst and Masami Hiramatsu" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8665/1: nommu: access ID_PFR1 only if CPUID scheme ARM: dma-mapping: disallow dma_get_sgtable() for non-kernel managed memory arm: kprobes: Align stack to 8-bytes in test code arm: kprobes: Fix the return address of multiple kretprobes arm: kprobes: Skip single-stepping in recursing path if possible arm: kprobes: Allow to handle reentered kprobe on single-stepping -
Linus Torvalds authored
Merge tag 'driver-core-4.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are 3 small fixes for 4.11-rc6. One resolves a reported issue with sysfs files that NeilBrown found, one is a documenatation fix for the stable kernel rules, and the last is a small MAINTAINERS file update for kernfs" * tag 'driver-core-4.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: MAINTAINERS: separate out kernfs maintainership sysfs: be careful of error returns from ops->show() Documentation: stable-kernel-rules: fix stable-tag format
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging/IIO driver rfixes from Greg KH: "Here are a number of small IIO and staging driver fixes for 4.11-rc6. Nothing big here, just iio fixes for reported issues, and an ashmem fix for a very old bug that has been reported by a number of Android vendors" * tag 'staging-4.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: android: ashmem: lseek failed due to no FMODE_LSEEK. iio: hid-sensor-attributes: Fix sensor property setting failure. iio: accel: hid-sensor-accel-3d: Fix duplicate scan index error iio: core: Fix IIO_VAL_FRACTIONAL_LOG2 for negative values iio: st_pressure: initialize lps22hb bootime iio: bmg160: reset chip when probing iio: cros_ec_sensors: Fix return value to get raw and calibbias data.
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull VFS fixes from Al Viro: "statx followup fixes and a fix for stack-smashing on alpha" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: alpha: fix stack smashing in old_adjtimex(2) statx: Include a mask for stx_attributes in struct statx statx: Reserve the top bit of the mask for future struct expansion xfs: report crtime and attribute flags to statx ext4: Add statx support statx: optimize copy of struct statx to userspace statx: remove incorrect part of vfs_statx() comment statx: reject unknown flags when using NULL path Documentation/filesystems: fix documentation for ->getattr()
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- 08 Apr, 2017 5 commits
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "Here's a pull request for 4.11-rc, fixing a set of issues mostly centered around the new scheduling framework. These have been brewing for a while, but split up into what we absolutely need in 4.11, and what we can defer until 4.12. These are well tested, on both single queue and multiqueue setups, and with and without shared tags. They fix several hangs that have happened in testing. This is obviously larger than I would have preferred at this point in time, but I don't think we can shave much off this and still get the desired results. In detail, this pull request contains: - a set of five fixes for NVMe, mostly from Christoph and one from Roland. - a series from Bart, fixing issues with dm-mq and SCSI shared tags and scheduling. Note that one of those patches commit messages may read like an optimization, but it is in fact an important fix for queue restarts in particular. - a series from Omar, most importantly fixing a hang with multiple hardware queues when we fail to get a driver tag. Another important fix in there is for resizing hardware queues, which nbd does when handling multiple sockets for one connection. - fixing an imbalance in putting the ctx for hctx request allocations from Minchan" * 'for-linus' of git://git.kernel.dk/linux-block: blk-mq: Restart a single queue if tag sets are shared dm rq: Avoid that request processing stalls sporadically scsi: Avoid that SCSI queues get stuck blk-mq: Introduce blk_mq_delay_run_hw_queue() blk-mq: remap queues when adding/removing hardware queues blk-mq-sched: fix crash in switch error path blk-mq-sched: set up scheduler tags when bringing up new queues blk-mq-sched: refactor scheduler initialization blk-mq: use the right hctx when getting a driver tag fails nvmet: fix byte swap in nvmet_parse_io_cmd nvmet: fix byte swap in nvmet_execute_write_zeroes nvmet: add missing byte swap in nvmet_get_smart_log nvme: add missing byte swap in nvme_setup_discard nvme: Correct NVMF enum values to match NVMe-oF rev 1.0 block: do not put mq context in blk_mq_alloc_request_hctx -
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds authored
Pull pin control fix from Linus Walleij: "This late fix for pin control is hopefully the last I send this cycle. The problem was detected early in the v4.11 release cycle and there has been some back and forth on how to solve it. Sadly the proper fix arrives late, but at least not too late. An issue was detected with pin control on the Freescale i.MX after the refactorings for more general group and function handling. We now have the proper fix for this" * tag 'pinctrl-v4.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable()
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: "Some more powerpc fixes for 4.11: Headed to stable: - disable HFSCR[TM] if TM is not supported, fixes a potential host kernel crash triggered by a hostile guest, but only in configurations that no one uses - don't try to fix up misaligned load-with-reservation instructions - fix flush_(d|i)cache_range() called from modules on little endian kernels - add missing global TLB invalidate if cxl is active - fix missing preempt_disable() in crc32c-vpmsum And a fix for selftests build changes that went in this release: - selftests/powerpc: Fix standalone powerpc build Thanks to: Benjamin Herrenschmidt, Frederic Barrat, Oliver O'Halloran, Paul Mackerras" * tag 'powerpc-4.11-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/crypto/crc32c-vpmsum: Fix missing preempt_disable() powerpc/mm: Add missing global TLB invalidate if cxl is active powerpc/64: Fix flush_(d|i)cache_range() called from modules powerpc: Don't try to fix up misaligned load-with-reservation instructions powerpc: Disable HFSCR[TM] if TM is not supported selftests/powerpc: Fix standalone powerpc build -
Chris Salls authored
In the case that compat_get_bitmap fails we do not want to copy the bitmap to the user as it will contain uninitialized stack data and leak sensitive data. Signed-off-by:
Chris Salls <salls@cs.ucsb.edu> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Liping Zhang authored
Currently, inputting the following command will succeed but actually the value will be truncated: # echo 0x12ffffffff > /proc/sys/net/ipv4/tcp_notsent_lowat This is not friendly to the user, so instead, we should report error when the value is larger than UINT_MAX. Fixes: e7d316a0 ("sysctl: handle error writing UINT_MAX to u32 fields") Signed-off-by:
Liping Zhang <zlpnobody@gmail.com> Cc: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:
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