- 15 Sep, 2015 8 commits
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Adrian Hunter authored
Make perf_evlist__set_maps() more resilient by allowing for the possibility that one or another of the maps isn't being changed and therefore should not be "put". Signed-off-by:
Adrian Hunter <adrian.hunter@intel.com> Acked-by:
Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@intel.com> Link: http://lkml.kernel.org/r/1441699142-18905-9-git-send-email-adrian.hunter@intel.comSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Adrian Hunter authored
perf_evlist__propagate_maps() cannot easily tell if an evsel has its own cpu map. To make that simpler, keep a copy of the PMU cpu map and adjust the propagation logic accordingly. Signed-off-by:
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Adrian Hunter authored
perf_evlist__propagate_maps() incorrectly assumes evsel->threads is NULL before reassigning it, but it won't be NULL when perf_evlist__set_maps() is used to set different (or NULL) maps. Thus thread_map__put must be used, which works even if evsel->threads is NULL. Signed-off-by:
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Adrian Hunter authored
Commit d49e4695 ("perf evsel: Add a backpointer to the evlist a evsel is in") updated perf_evlist__add() but not perf_evlist__splice_list_tail(). This illustrates that it is better if perf_evlist__splice_list_tail() calls perf_evlist__add() instead of duplicating the logic, so do that. This will also simplify a subsequent fix for propagating maps. Signed-off-by:
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Adrian Hunter authored
Subsequent patches will need to call perf_evlist__propagate_maps without reference to a "target". Add evlist->has_user_cpus to record whether the user has specified which cpus to target (and therefore whether that list of cpus should override the default settings for a selected event i.e. the cpu maps should be propagated) Signed-off-by:
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Adrian Hunter authored
The validation checks that the values that were just assigned, got assigned i.e. the error can't ever happen. Subsequent patches will call this code in places where errors are not being returned. Changing those code paths to return this non-existent error is counter-productive, so just remove it. That in turn results in perf_evlist__set_maps not needing to return an error, but callers aren't checking it either, so remove that too. Signed-off-by:
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Adrian Hunter authored
Don't need to check for NULL when "putting" evlist->maps and evlist->threads because the "put" functions already do that. Signed-off-by:
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Adrian Hunter authored
If evsel->cpus is to be reassigned then the current value must be "put", which works even if it is NULL. Simplify the current logic by moving the "put" next to the assignment. Signed-off-by:
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- 14 Sep, 2015 2 commits
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Wang Nan authored
'perf top' segfaults with following operation: # perf top -e page-faults -p 11400 # 11400 never generates page-fault Then on the resulting empty interface, press right key: # ./perf top -e page-faults -p 11400 perf: Segmentation fault -------- backtrace -------- ./perf[0x535428] /lib64/libc.so.6(+0x3545f)[0x7f0dd360745f] ./perf[0x531d46] ./perf(perf_evlist__tui_browse_hists+0x96)[0x5340d6] ./perf[0x44ba2f] /lib64/libpthread.so.0(+0x81d0)[0x7f0dd49dc1d0] /lib64/libc.so.6(clone+0x6c)[0x7f0dd36b90dc] The bug resides in perf_evsel__hists_browse() that, in the above circumstance browser->selection can be NULL, but code after skip_annotation doesn't consider it. This patch fix it by checking browser->selection before fetching browser->selection->map. Signed-off-by:
Wang Nan <wangnan0@huawei.com> Tested-by:
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Ingo Molnar authored
Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fix from Arnaldo Carvalho de Melo: - The values of _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN (sysconf(3)) were being read from perf.data files in the inverse order they are written, fix it. (Arnaldo Carvalho de Melo) Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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- 13 Sep, 2015 2 commits
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Arnaldo Carvalho de Melo authored
The original patch introducing this header wrote the number of CPUs available and online in one order and then swapped those values when reading, fix it. Before: # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 4 # nrcpus avail : 4 # echo 0 > /sys/devices/system/cpu/cpu2/online # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 4 # nrcpus avail : 3 # echo 0 > /sys/devices/system/cpu/cpu1/online # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 4 # nrcpus avail : 2 After the fix, bringing back the CPUs online: # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 2 # nrcpus avail : 4 # echo 1 > /sys/devices/system/cpu/cpu2/online # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 3 # nrcpus avail : 4 # echo 1 > /sys/devices/system/cpu/cpu1/online # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 4 # nrcpus avail : 4 Acked-by:
Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@intel.com> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Fixes: fbe96f29 ("perf tools: Make perf.data more self-descriptive (v8)") Link: http://lkml.kernel.org/r/20150911153323.GP23511@kernel.orgSigned-off-by:
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Peter Zijlstra authored
Sasha reported that we can get here with .idx==-1, and cpuc->event_constraints unallocated. Suggested-by:
Stephane Eranian <eranian@google.com> Reported-by:
Sasha Levin <sasha.levin@oracle.com> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@vger.kernel.org> Fixes: b371b594 ("perf/x86: Fix event/group validation") Signed-off-by:
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- 11 Sep, 2015 1 commit
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Alexander Shishkin authored
Since event->hw.itrace_started is now set in pmu::start() to signal the beginning of the trace, do so also in the intel_bts driver. Signed-off-by:
Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by:
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- 04 Sep, 2015 1 commit
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Ingo Molnar authored
Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - In some cases where perf_event.fork.{pid,tid} should be used we were instead using perf_event.comm.{pid,tid}, which is not a problem for for the 'pid' case, that sits in the same place in these union_perf_event members, but comm.tid sits where fork.ppid is, oops. These cases were considered as (potentially) problematic: - 'perf script' with !sample_id_all, i.e. only non old kernels without perf_event_attr.sample_id_all. - intel_pt could be affected when decoding without timestamps, as the exit event is only used to flush out data which anyway gets flushed at the end of the session. - intel_bts also uses the exit event to flush data which would probably not cause errors as it would get flushed at the end of the session instead. Fix it. (Adrian Hunter) - Due to relaxing the compiler checks for bison generated files, we missed updating one parse_events_add_pmu() caller when this function had its prototype changed, fix it. (Jiri Olsa) Signed-off-by:
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- 02 Sep, 2015 3 commits
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Adrian Hunter authored
In a couple of cases the 'comm' member of 'union event' has been used instead of the correct member ('fork') when processing exit events. In the cases where it has been used incorrectly, only the 'pid' and 'tid' are affected. The 'pid' value would be correct anyway because it is in the same position in 'comm' and 'fork' events, but the 'tid' would have been incorrectly assigned from 'ppid'. However, for exit events, the kernel puts the current task in the 'ppid' and 'ttid' which is the same as the exiting task. That is 'ppid' == 'pid' and if the task is not multi-threaded, 'pid' == 'tid' i.e. the data goes wrong only when tracing multi-threaded programs. It is hard to find an example of how this would produce an error in practice. There are 3 occurences of the fix: 1. perf script is only affected if !sample_id_all which only happens on old kernels. 2. intel_pt is only affected when decoding without timestamps and would probably still decode correctly - the exit event is only used to flush out data which anyway gets flushed at the end of the session 3. intel_bts also uses the exit event to flush data which would probably not cause errors as it would get flushed at the end of the session instead Signed-off-by: -
Jiri Olsa authored
Following commit changed parse_events_add_pmu interface: 36adec85 perf tools: Change parse_events_add_pmu interface but forgot to change one caller. Because of lessen compilation rules for the bison parser, the compiler did not warn on that. Signed-off-by:
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Ingo Molnar authored
Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - Fix link time error with sample_reg_masks on non-x86. (Stephane Eranian) - Fix potential array out of bounds access. (Wang Nan) - Fix Intel PT instruction decoder dependency problem. (Wang Nan) Signed-off-by:
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- 01 Sep, 2015 17 commits
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Stephane Eranian authored
This patch makes perf compile on non x86 platforms by defining a weak symbol for sample_reg_masks[] in util/perf_regs.c. The patch also moves the REG() and REG_END() macros into the util/per_regs.h header file. The macros are renamed to SMPL_REG/SMPL_REG_END to avoid clashes with other header files. Signed-off-by:
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Wang Nan authored
I hit following building error randomly: ... /bin/sh: /path/to/kernel/buildperf/util/intel-pt-decoder/inat-tables.c: No such file or directory ... LINK /path/to/kernel/buildperf/plugin_mac80211.so LINK /path/to/kernel/buildperf/plugin_kmem.so LINK /path/to/kernel/buildperf/plugin_xen.so LINK /path/to/kernel/buildperf/plugin_hrtimer.so In file included from util/intel-pt-decoder/intel-pt-insn-decoder.c:25:0: util/intel-pt-decoder/inat.c:24:25: fatal error: inat-tables.c: No such file or directory #include "inat-tables.c" ^ compilation terminated. make[4]: *** [/path/to/kernel/buildperf/util/intel-pt-decoder/intel-pt-insn-decoder.o] Error 1 make[4]: *** Waiting for unfinished jobs.... LINK /path/to/kernel/buildperf/plugin_function.so This is caused by tools/perf/util/intel-pt-decoder/Build that, it tries to generate $(OUTPUT)util/intel-pt-decoder/inat-tables.c atomatically but forget to ensure the existance of $(OUTPUT)util/intel-pt-decoder directory. This patch fixes it by adding $(call rule_mkdir) like other similar rules. Signed-off-by: -
Wang Nan authored
There is a problem in the dwarf-regs.c files for sh, sparc and x86 where it is possible to make an out-of-bounds array access when searching for register names. This patch fixes it by replacing '<=' to '<', so when register (number == XXX_MAX_REGS), get_arch_regstr() will return NULL. Signed-off-by:
Matt Fleming <matt@console-pimps.org> Acked-by:
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David S. Miller <davem@davemloft.net> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@huawei.com Link: http://lkml.kernel.org/r/1441078184-105038-1-git-send-email-wangnan0@huawei.comSigned-off-by:
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Add ability to specify to select which registers to record, to reduce the size of perf.data files, and also allow printing the registers in 'perf script': (Stephane Eranian) # perf record --intr-regs=AX,SP usleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.016 MB perf.data (8 samples) ] # perf script -F ip,sym,iregs | tail -5 ffffffff8105f42a native_write_msr_safe AX:0xf SP:0xffff8802629c3c00 ffffffff8105f42a native_write_msr_safe AX:0xf SP:0xffff8802629c3c00 ffffffff81761ac0 _raw_spin_lock AX:0xffff8801bfcf8020 SP:0xffff8802629c3ce8 ffffffff81202bf8 __vma_adjust_trans_huge AX:0x7ffc75200000 SP:0xffff8802629c3b30 ffffffff8122b089 dput AX:0x101 SP:0xffff8802629c3c78 # Infrastructure changes: - Open event on evsel cpus and threads. (Kan Liang) - Add new bpf API to get name from a BPF object. (Wang Nan) Build fixes: - Fix build on powerpc broken by pt/bts. (Adrian Hunter) Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull NOHZ updates from Ingo Molnar: "The main changes, mostly written by Frederic Weisbecker, include: - Fix some jiffies based cputime assumptions. (No real harm because the concerned code isn't used by full dynticks.) - Simplify jiffies <-> usecs conversions. Remove dead code. - Remove early hacks on nohz full code that avoided messing up idle nohz internals. Now nohz integrates well full and idle and such hack have become needless. - Restart nohz full tick from irq exit. (A simplification and a preparation for future optimization on scheduler kick to nohz full) - Code cleanups. - Tile driver isolation enhancement on top of nohz. (Chris Metcalf)" * 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: nohz: Remove useless argument on tick_nohz_task_switch() nohz: Move tick_nohz_restart_sched_tick() above its users nohz: Restart nohz full tick from irq exit nohz: Remove idle task special case nohz: Prevent tilegx network driver interrupts alpha: Fix jiffies based cputime assumption apm32: Fix cputime == jiffies assumption jiffies: Remove HZ > USEC_PER_SEC special case -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fix from Ingo Molnar: "This is a leftover scheduler fix from the v4.2 cycle" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix cpu_active_mask/cpu_online_mask race
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler updates from Ingo Molnar: "The biggest change in this cycle is the rewrite of the main SMP load balancing metric: the CPU load/utilization. The main goal was to make the metric more precise and more representative - see the changelog of this commit for the gory details: 9d89c257 ("sched/fair: Rewrite runnable load and utilization average tracking") It is done in a way that significantly reduces complexity of the code: 5 files changed, 249 insertions(+), 494 deletions(-) and the performance testing results are encouraging. Nevertheless we need to keep an eye on potential regressions, since this potentially affects every SMP workload in existence. This work comes from Yuyang Du. Other changes: - SCHED_DL updates. (Andrea Parri) - Simplify architecture callbacks by removing finish_arch_switch(). (Peter Zijlstra et al) - cputime accounting: guarantee stime + utime == rtime. (Peter Zijlstra) - optimize idle CPU wakeups some more - inspired by Facebook server loads. (Mike Galbraith) - stop_machine fixes and updates. (Oleg Nesterov) - Introduce the 'trace_sched_waking' tracepoint. (Peter Zijlstra) - sched/numa tweaks. (Srikar Dronamraju) - misc fixes and small cleanups" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits) sched/deadline: Fix comment in enqueue_task_dl() sched/deadline: Fix comment in push_dl_tasks() sched: Change the sched_class::set_cpus_allowed() calling context sched: Make sched_class::set_cpus_allowed() unconditional sched: Fix a race between __kthread_bind() and sched_setaffinity() sched: Ensure a task has a non-normalized vruntime when returning back to CFS sched/numa: Fix NUMA_DIRECT topology identification tile: Reorganize _switch_to() sched, sparc32: Update scheduler comments in copy_thread() sched: Remove finish_arch_switch() sched, tile: Remove finish_arch_switch sched, sh: Fold finish_arch_switch() into switch_to() sched, score: Remove finish_arch_switch() sched, avr32: Remove finish_arch_switch() sched, MIPS: Get rid of finish_arch_switch() sched, arm: Remove finish_arch_switch() sched/fair: Clean up load average references sched/fair: Provide runnable_load_avg back to cfs_rq sched/fair: Remove task and group entity load when they are dead sched/fair: Init cfs_rq's sched_entity load average ... -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RAS updates from Ingo Molnar: "MCE handling updates, but also some generic drivers/edac/ changes to better organize the Kconfig space" * 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ras: Move AMD MCE injector to arch/x86/ras/ x86/mce: Add a wrapper around mce_log() for injection x86/mce: Rename rcu_dereference_check_mce() to mce_log_get_idx_check() RAS: Add a menuconfig option with descriptive text x86/mce: Reenable CMCI banks when swiching back to interrupt mode x86/mce: Clear Local MCE opt-in before kexec x86/mce: Remove unused function declarations x86/mce: Kill drain_mcelog_buffer() x86/mce: Avoid potential deadlock due to printk() in MCE context x86/mce: Remove the MCE ring for Action Optional errors x86/mce: Don't use percpu workqueues x86/mce: Provide a lockless memory pool to save error records x86/mce: Reuse one of the u16 padding fields in 'struct mce'
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf updates from Ingo Molnar: "Main perf kernel side changes: - uprobes updates/fixes. (Oleg Nesterov) - Add PERF_RECORD_SWITCH to indicate context switches and use it in tooling. (Adrian Hunter) - Support BPF programs attached to uprobes and first steps for BPF tooling support. (Wang Nan) - x86 generic x86 MSR-to-perf PMU driver. (Andy Lutomirski) - x86 Intel PT, LBR and BTS updates. (Alexander Shishkin) - x86 Intel Skylake support. (Andi Kleen) - x86 Intel Knights Landing (KNL) RAPL support. (Dasaratharaman Chandramouli) - x86 Intel Broadwell-DE uncore support. (Kan Liang) - x86 hw breakpoints robustization (Andy Lutomirski) Main perf tooling side changes: - Support Intel PT in several tools, enabling the use of the processor trace feature introduced in Intel Broadwell processors: (Adrian Hunter) # dmesg | grep Performance # [0.188477] Performance Events: PEBS fmt2+, 16-deep LBR, Broadwell events, full-width counters, Intel PMU driver. # perf record -e intel_pt//u -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.216 MB perf.data ] # perf script # then navigate in the tool output to some area, like this one: 184 1030 dl_main (/usr/lib64/ld-2.17.so) => 7f21ba661440 dl_main (/usr/lib64/ld-2.17.so) 185 1457 dl_main (/usr/lib64/ld-2.17.so) => 7f21ba669f10 _dl_new_object (/usr/lib64/ld-2.17.so) 186 9f37 _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba677b90 strlen (/usr/lib64/ld-2.17.so) 187 7ba3 strlen (/usr/lib64/ld-2.17.so) => 7f21ba677c75 strlen (/usr/lib64/ld-2.17.so) 188 7c78 strlen (/usr/lib64/ld-2.17.so) => 7f21ba669f3c _dl_new_object (/usr/lib64/ld-2.17.so) 189 9f8a _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba65fab0 calloc@plt (/usr/lib64/ld-2.17.so) 190 fab0 calloc@plt (/usr/lib64/ld-2.17.so) => 7f21ba675e70 calloc (/usr/lib64/ld-2.17.so) 191 5e87 calloc (/usr/lib64/ld-2.17.so) => 7f21ba65fa90 malloc@plt (/usr/lib64/ld-2.17.so) 192 fa90 malloc@plt (/usr/lib64/ld-2.17.so) => 7f21ba675e60 malloc (/usr/lib64/ld-2.17.so) 193 5e68 malloc (/usr/lib64/ld-2.17.so) => 7f21ba65fa80 __libc_memalign@plt (/usr/lib64/ld-2.17.so) 194 fa80 __libc_memalign@plt (/usr/lib64/ld-2.17.so) => 7f21ba675d50 __libc_memalign (/usr/lib64/ld-2.17.so) 195 5d63 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675e20 __libc_memalign (/usr/lib64/ld-2.17.so) 196 5e40 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675d73 __libc_memalign (/usr/lib64/ld-2.17.so) 197 5d97 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675e18 __libc_memalign (/usr/lib64/ld-2.17.so) 198 5e1e __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675df9 __libc_memalign (/usr/lib64/ld-2.17.so) 199 5e10 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba669f8f _dl_new_object (/usr/lib64/ld-2.17.so) 200 9fc2 _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba678e70 memcpy (/usr/lib64/ld-2.17.so) 201 8e8c memcpy (/usr/lib64/ld-2.17.so) => 7f21ba678ea0 memcpy (/usr/lib64/ld-2.17.so) - Add support for using several Intel PT features (CYC, MTC packets), the relevant documentation was updated in: tools/perf/Documentation/intel-pt.txt briefly describing those packets, its purposes, how to configure them in the event config terms and relevant external documentation for further reading. (Adrian Hunter) - Introduce support for probing at an absolute address, for user and kernel 'perf probe's, useful when one have the symbol maps on a developer machine but not on an embedded system. (Wang Nan) - Add Intel BTS support, with a call-graph script to show it and PT in use in a GUI using 'perf script' python scripting with postgresql and Qt. (Adrian Hunter) - Allow selecting the type of callchains per event, including disabling callchains in all but one entry in an event list, to save space, and also to ask for the callchains collected in one event to be used in other events. (Kan Liang) - Beautify more syscall arguments in 'perf trace': (Arnaldo Carvalho de Melo) * A bunch more translate file/pathnames from pointers to strings. * Convert numbers to strings for the 'keyctl' syscall 'option' arg. * Add missing 'clockid' entries. - Introduce 'srcfile' sort key: (Andi Kleen) # perf record -F 10000 usleep 1 # perf report --stdio --dsos '[kernel.vmlinux]' -s srcfile <SNIP> # Overhead Source File 26.49% copy_page_64.S 5.49% signal.c 0.51% msr.h # It can be combined with other fields, for instance, experiment with '-s srcfile,symbol'. There are some oddities in some distros and with some specific DSOs, being investigated, so your mileage may vary. - Support per-event 'freq' term: (Namhyung Kim) $ perf record -e 'cpu/instructions,freq=1234/',cycles -c 1000 sleep 1 $ perf evlist -F cpu/instructions,freq=1234/: sample_freq=1234 cycles: sample_period=1000 $ - Deref sys_enter pointer args with contents from probe:vfs_getname, showing pathnames instead of pointers in many syscalls in 'perf trace'. (Arnaldo Carvalho de Melo) - Stop collecting /proc/kallsyms in perf.data files, saving about 4.5MB on a typical x86-64 system, use the the symbol resolution routines used in all the other tools (report, top, etc) now that we can ask libtraceevent to use perf's symbol resolution code. (Arnaldo Carvalho de Melo) - Allow filtering out of perf's PID via 'perf record --exclude-perf'. (Wang Nan) - 'perf trace' now supports syscall groups, like strace, i.e: $ trace -e file touch file Will expand 'file' into multiple, file related, syscalls. More work needed to add extra groups for other syscall groups, and also to complement what was added for the 'file' group, included as a proof of concept. (Arnaldo Carvalho de Melo) - Add lock_pi stresser to 'perf bench futex', to test the kernel code related to FUTEX_(UN)LOCK_PI. (Davidlohr Bueso) - Let user have timestamps with per-thread recording in 'perf record' (Adrian Hunter) - ... and tons of other changes, see the shortlog and the Git log for details" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (240 commits) perf evlist: Add backpointer for perf_env to evlist perf tools: Rename perf_session_env to perf_env perf tools: Do not change lib/api/fs/debugfs directly perf tools: Add tracing_path and remove unneeded functions perf buildid: Introduce sysfs/filename__sprintf_build_id perf evsel: Add a backpointer to the evlist a evsel is in perf trace: Add header with copyright and background info perf scripts python: Add new compaction-times script perf stat: Get correct cpu id for print_aggr tools lib traceeveent: Allow for negative numbers in print format perf script: Add --[no-]-demangle/--[no-]-demangle-kernel tracing/uprobes: Do not print '0x (null)' when offset is 0 perf probe: Support probing at absolute address perf probe: Fix error reported when offset without function perf probe: Fix list result when address is zero perf probe: Fix list result when symbol can't be found tools build: Allow duplicate objects in the object list perf tools: Remove export.h from MANIFEST perf probe: Prevent segfault when reading probe point with absolute address perf tools: Update Intel PT documentation ... -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/kasan changes from Ingo Molnar: "These are two KASAN changes that factor out (and generalize) x86 specific KASAN code from x86 to mm" * 'mm-kasan-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kasan, mm: Introduce generic kasan_populate_zero_shadow() x86/kasan: Define KASAN_SHADOW_OFFSET per architecture
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull liblockdep fixes from Ingo Molnar: "Three liblockdep fixes left over from the v4.2 cycle" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/liblockdep: Use the rbtree header provided by common tools headers tools/liblockdep: Correct macro for WARN tools: Restore export.h
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull inlining tuning from Ingo Molnar: "A handful of inlining optimizations inspired by x86 work but applicable in general" * 'core-types-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: jiffies: Force inlining of {m,u}msecs_to_jiffies() x86/hweight: Force inlining of __arch_hweight{32,64}() linux/bitmap: Force inlining of bitmap weight functions
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RCU updates from Ingo Molnar: "The main RCU changes in this cycle are: - the combination of tree geometry-initialization simplifications and OS-jitter-reduction changes to expedited grace periods. These two are stacked due to the large number of conflicts that would otherwise result. - privatize smp_mb__after_unlock_lock(). This commit moves the definition of smp_mb__after_unlock_lock() to kernel/rcu/tree.h, in recognition of the fact that RCU is the only thing using this, that nothing else is likely to use it, and that it is likely to go away completely. - documentation updates. - torture-test updates. - misc fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits) rcu,locking: Privatize smp_mb__after_unlock_lock() rcu: Silence lockdep false positive for expedited grace periods rcu: Don't disable CPU hotplug during OOM notifiers scripts: Make checkpatch.pl warn on expedited RCU grace periods rcu: Update MAINTAINERS entry rcu: Clarify CONFIG_RCU_EQS_DEBUG help text rcu: Fix backwards RCU_LOCKDEP_WARN() in synchronize_rcu_tasks() rcu: Rename rcu_lockdep_assert() to RCU_LOCKDEP_WARN() rcu: Make rcu_is_watching() really notrace cpu: Wait for RCU grace periods concurrently rcu: Create a synchronize_rcu_mult() rcu: Fix obsolete priority-boosting comment rcu: Use WRITE_ONCE in RCU_INIT_POINTER rcu: Hide RCU_NOCB_CPU behind RCU_EXPERT rcu: Add RCU-sched flavors of get-state and cond-sync rcu: Add fastpath bypassing funnel locking rcu: Rename RCU_GP_DONE_FQS to RCU_GP_DOING_FQS rcu: Pull out wait_event*() condition into helper function documentation: Describe new expedited stall warnings rcu: Add stall warnings to synchronize_sched_expedited() ... -
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto updates from Herbert Xu: "Here is the crypto update for 4.3: API: - the AEAD interface transition is now complete. - add top-level skcipher interface. Drivers: - x86-64 acceleration for chacha20/poly1305. - add sunxi-ss Allwinner Security System crypto accelerator. - add RSA algorithm to qat driver. - add SRIOV support to qat driver. - add LS1021A support to caam. - add i.MX6 support to caam" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (163 commits) crypto: algif_aead - fix for multiple operations on AF_ALG sockets crypto: qat - enable legacy VFs MPI: Fix mpi_read_buffer crypto: qat - silence a static checker warning crypto: vmx - Fixing opcode issue crypto: caam - Use the preferred style for memory allocations crypto: caam - Propagate the real error code in caam_probe crypto: caam - Fix the error handling in caam_probe crypto: caam - fix writing to JQCR_MS when using service interface crypto: hash - Add AHASH_REQUEST_ON_STACK crypto: testmgr - Use new skcipher interface crypto: skcipher - Add top-level skcipher interface crypto: cmac - allow usage in FIPS mode crypto: sahara - Use dmam_alloc_coherent crypto: caam - Add support for LS1021A crypto: qat - Don't move data inside output buffer crypto: vmx - Fixing GHASH Key issue on little endian crypto: vmx - Fixing AES-CTR counter bug crypto: null - Add missing Kconfig tristate for NULL2 crypto: nx - Add forward declaration for struct crypto_aead ...
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk updates from Michael Turquette: "The clk framework changes for 4.3 are mostly updates to existing drivers and the addition of new clock drivers. Stephen Boyd has also done a lot of subsystem-wide driver clean-ups (thanks!). There are also fixes to the framework core and changes to better split clock provider drivers from clock consumer drivers" * tag 'clk-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (227 commits) clk: s5pv210: add missing call to samsung_clk_of_add_provider() clk: pistachio: correct critical clock list clk: pistachio: Fix PLL rate calculation in integer mode clk: pistachio: Fix override of clk-pll settings from boot loader clk: pistachio: Fix 32bit integer overflows clk: tegra: Fix some static checker problems clk: qcom: Fix MSM8916 prng clock enable bit clk: Add missing header for 'bool' definition to clk-conf.h drivers/clk: appropriate __init annotation for const data clk: rockchip: register pll mux before pll itself clk: add bindings for the Ux500 clocks clk/ARM: move Ux500 PRCC bases to the device tree clk: remove duplicated code with __clk_set_parent_after clk: Convert __clk_get_name(hw->clk) to clk_hw_get_name(hw) clk: Constify clk_hw argument to provider APIs clk: Hi6220: add stub clock driver dt-bindings: clk: Hi6220: Document stub clock driver dt-bindings: arm: Hi6220: add doc for SRAM controller clk: atlas7: fix pll missed divide NR in fraction mode clk: atlas7: fix bit field and its root clk for coresight_tpiu ...
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
Pull PCI updates from Bjorn Helgaas: "PCI changes for the v4.3 merge window: Enumeration: - Allocate ATS struct during enumeration (Bjorn Helgaas) - Embed ATS info directly into struct pci_dev (Bjorn Helgaas) - Reduce size of ATS structure elements (Bjorn Helgaas) - Stop caching ATS Invalidate Queue Depth (Bjorn Helgaas) - iommu/vt-d: Cache PCI ATS state and Invalidate Queue Depth (Bjorn Helgaas) - Move MPS configuration check to pci_configure_device() (Bjorn Helgaas) - Set MPS to match upstream bridge (Keith Busch) - ARM/PCI: Set MPS before pci_bus_add_devices() (Murali Karicheri) - Add pci_scan_root_bus_msi() (Lorenzo Pieralisi) - ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi() (Lorenzo Pieralisi) Resource management: - Call pci_read_bridge_bases() from core instead of arch code (Lorenzo Pieralisi) PCI device hotplug: - pciehp: Remove unused interrupt events (Bjorn Helgaas) - pciehp: Remove ignored MRL sensor interrupt events (Bjorn Helgaas) - pciehp: Handle invalid data when reading from non-existent devices (Jarod Wilson) - pciehp: Simplify pcie_poll_cmd() (Yijing Wang) - Use "slot" and "pci_slot" for struct hotplug_slot and struct pci_slot (Yijing Wang) - Protect pci_bus->slots with pci_slot_mutex, not pci_bus_sem (Yijing Wang) - Hold pci_slot_mutex while searching bus->slots list (Yijing Wang) Power management: - Disable async suspend/resume for JMicron multi-function SATA/AHCI (Zhang Rui) Virtualization: - Add ACS quirks for Intel I219-LM/V (Alex Williamson) - Restore ACS configuration as part of pci_restore_state() (Alexander Duyck) MSI: - Add pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu) - x86: Implement pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu) - Add helpers to manage pci_dev->irq and pci_dev->irq_managed (Jiang Liu) - Free legacy IRQ when enabling MSI/MSI-X (Jiang Liu) - ARM/PCI: Remove msi_controller from struct pci_sys_data (Lorenzo Pieralisi) - Remove unused pcibios_msi_controller() hook (Lorenzo Pieralisi) Generic host bridge driver: - Remove dependency on ARM-specific struct hw_pci (Jayachandran C) - Build setup-irq.o for arm64 (Jayachandran C) - Add arm64 support (Jayachandran C) APM X-Gene host bridge driver: - Add APM X-Gene PCIe 64-bit prefetchable window (Duc Dang) - Add support for a 64-bit prefetchable memory window (Duc Dang) - Drop owner assignment from platform_driver (Krzysztof Kozlowski) Broadcom iProc host bridge driver: - Allow BCMA bus driver to be built as module (Hauke Mehrtens) - Delete unnecessary checks before phy calls (Markus Elfring) - Add arm64 support (Ray Jui) Synopsys DesignWare host bridge driver: - Don't complain missing *config* reg space if va_cfg0 is set (Murali Karicheri) TI DRA7xx host bridge driver: - Disable pm_runtime on get_sync failure (Kishon Vijay Abraham I) - Add PM support (Kishon Vijay Abraham I) - Clear MSE bit during suspend so clocks will idle (Kishon Vijay Abraham I) - Add support to make GPIO drive PERST# line (Kishon Vijay Abraham I) Xilinx AXI host bridge driver: - Check for MSI interrupt flag before handling as INTx (Russell Joyce) Miscellaneous: - Fix Intersil/Techwell TW686[4589] AV capture class code (Krzysztof Hałasa) - Use PCI_CLASS_SERIAL_USB instead of bare number (Bjorn Helgaas) - Fix generic NCR 53c810 class code quirk (Bjorn Helgaas) - Fix TI816X class code quirk (Bjorn Helgaas) - Remove unused "pci_probe" flags (Bjorn Helgaas) - Host bridge driver code simplifications (Fabio Estevam) - Add dev_flags bit to access VPD through function 0 (Mark Rustad) - Add VPD function 0 quirk for Intel Ethernet devices (Mark Rustad) - Kill off set_irq_flags() usage (Rob Herring) - Remove Intel Cherrytrail D3 delays (Srinidhi Kasagar) - Clean up pci_find_capability() (Wei Yang)" * tag 'pci-v4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (72 commits) PCI: Disable async suspend/resume for JMicron multi-function SATA/AHCI PCI: Set MPS to match upstream bridge PCI: Move MPS configuration check to pci_configure_device() PCI: Drop references acquired by of_parse_phandle() PCI/MSI: Remove unused pcibios_msi_controller() hook ARM/PCI: Remove msi_controller from struct pci_sys_data ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi() PCI: Add pci_scan_root_bus_msi() ARM/PCI: Replace panic with WARN messages on failures PCI: generic: Add arm64 support PCI: Build setup-irq.o for arm64 PCI: generic: Remove dependency on ARM-specific struct hw_pci PCI: imx6: Simplify a trivial if-return sequence PCI: spear: Use BUG_ON() instead of condition followed by BUG() PCI: dra7xx: Remove unneeded use of IS_ERR_VALUE() PCI: Remove pci_ats_enabled() PCI: Stop caching ATS Invalidate Queue Depth PCI: Move ATS declarations to linux/pci.h so they're all together PCI: Clean up ATS error handling PCI: Use pci_physfn() rather than looking up physfn by hand ...
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git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-ledsLinus Torvalds authored
Pull LED updates from Jacek Anaszewski: "In this merge window we'd like to announce a change on the list of LED subsystem maintainers - Bryan Wu decided to step back and handed over the maintainership to me (Jacek Anaszewski), which entailed an update of LED subsystem git tree URL. Besides the changes in MAINTAINERS we have: - optimizations and improvements to existing LED class drivers - improvements to the common LEDs DT documentation - modifications of kirkwood-* dts files, to be in sync with patches for leds-ns2 driver, that move LEDs mode mapping outside of the driver" * tag 'leds_for_4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: Export OF module alias information in missing drivers leds:lp55xx: use the private data instead of updating I2C device platform data leds: syscon: Correct check for syscon_node_to_regmap() errors leds: leds-fsg: Use devm_led_classdev_register MAINTAINERS: Change LED subsystem git tree URL leds/led-class: Add missing put_device() ARM: Kirkwood: add modes-map property to ns2-leds nodes leds: tlc591xx: Remove redundant I2C_FUNC_SMBUS_BYTE_DATA functionality check leds: leds-ns2: depends on MACH_ARMADA_370 leds: leds-ns2: handle can_sleep GPIOs leds: leds-ns2: move LED modes mapping outside of the driver leds: lp8860: Constify reg_default tables leds: Drop owner assignment from i2c_driver leds: Allow compile test of LEDS_AAT1290 and LEDS_KTD2692 if !GPIOLIB leds: Allow compile test of GPIO consumers if !GPIOLIB DT: leds: Improve description of flash LEDs related properties
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- 31 Aug, 2015 6 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi updates from Mark Brown: "A few core tweaks this time together with the usual collection of driver specific updates and fixes plus a larger than average selection of new device support: - fix DMA mapping of unaligned vmalloc() buffers - statistics tracking transfer volumes exposed via sysfs - new drivers for Freescale MPC5125, Intel Sunrise Point, Mediatek SoCs, and Netlogic XLP SoCs" * tag 'spi-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (66 commits) spi: sh-msiof: Fix FIFO size to 64 word from 256 word spi: fsl-(e)spi: Fix checking return value of devm_ioremap_resource spi: Add DT bindings documentation for Netlogic XLP SPI controller spi/xlp: SPI controller driver for Netlogic XLP SoCs spi: fsl-espi: add runtime PM spi: fsl-(e)spi: simplify cleanup code spi: fsl-(e)spi: migrate to using devm_ functions to simplify cleanup spi: mediatek: fix SPI_CMD_PAUSE_IE macro error spi: check bits_per_word in spi_setup spi: mediatek: replace *_time name spi: mediatek: add PM clk_prepare_enable fail flow spi: mediatek: replace int with u32, delete TAB and define MTK_SPI_PAUSE_INT_STATUS marco spi: mediatek: add linux/io.h include file spi/bcm63xx-hsspi: add support for dual spi read/write spi: dw: Allow interface drivers to limit data I/O to word sizes dt: snps,dw-apb-ssi: Document new I/O data register width property spi: Fall back to master maximum speed if no slave speed specified spi: mediatek: use BIT() to instead of SPI_CMD_*_OFFSET spi: medaitek: revise quirks compatibility style spi: mediatek: fix spi incorrect endian usage ... -
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulatorLinus Torvalds authored
Pull regulator updates from Mark Brown: "The biggest changes in the core this time around have been some refactorings that move us towards being able to drop the list of regulators maintained by the core and instead just use the driver model list maintained for the class devices for regulators which will make the code smaller and avoid some potential bugs. Otherwise another fairly quiet release for the regulator API, highlights include: - a new API for setting voltages based on a minimum, target, maximum triplet - support for continuous voltage ranges rather than tables of explicit steps in the PWM regulator, requiring less explicit configuration - new driver support for Dialog DA9215, Maxim 77843, Mediatek MT6311 and Qualcomm RPM" * tag 'regulator-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (70 commits) regulator: mt6311: fix platform_no_drv_owner.cocci warnings regulator: ltc3589: Remove unnecessary MODULE_ALIAS() regulator: ad5398: Remove unnecessary MODULE_ALIAS() regulator: pfuze100: Remove unnecessary MODULE_ALIAS() regulator: core: use debug level print in regulator_check_drms regulator: lp872x: handle error case regulator: lp872x: use the private data instead of updating I2C device platform data regulator: isl9305: Export OF module alias information regulators: max77693: register driver earlier to avoid deferred probe regulator: qcom_smd: Set n_voltages for pm8941_lnldo regulator: core: Use IS_ERR_OR_NULL() regulator: core: Define regulator_set_voltage_triplet() regulator: Regulator driver for the Qualcomm RPM regulator: pbias: Fix broken pbias disable functionality regulator: core: Spelling fix regulator: core: Use class device list for regulator_list in late init regulator: core: Move more deallocation into class unregister regulator: core: Reduce rdev locking region when releasing regulator Input: Remove the max77843 haptic driver Input: max77693: Add support for Maxim 77843 ... -
git://git.lwn.net/linux-2.6Linus Torvalds authored
Pull documentation updates from Jonathan Corbet: "There's been a fair amount going on in the docs tree this time around, including: - Support for reproducible document builds, from Ben Hutchings and company. - The ability to automatically generate cross-reference links within a single DocBook book and embedded descriptions for large structures. From Danilo Cesar Lemes de Paula. - A new document on how to add a system call from David Drysdale. - Chameleon bus documentation from Johannes Thumshirn. ...plus the usual collection of improvements, typo fixes, and more" * tag 'docs-for-linus' of git://git.lwn.net/linux-2.6: (39 commits) Documentation, add kernel-parameters.txt entry for dis_ucode_ldr Documentation/x86: Rename IRQSTACKSIZE to IRQ_STACK_SIZE Documentation/Intel-IOMMU.txt: Modify definition of DRHD docs: update HOWTO for 3.x -> 4.x versioning kernel-doc: ignore unneeded attribute information scripts/kernel-doc: Adding cross-reference links to html documentation. DocBook: Fix non-determinstic installation of duplicate man pages Documentation: minor typo fix in mailbox.txt Documentation: describe how to add a system call doc: Add more workqueue functions to the documentation ARM: keystone: add documentation for SoCs and EVMs scripts/kernel-doc Allow struct arguments documentation in struct body SubmittingPatches: remove stray quote character Revert "DocBook: Avoid building man pages repeatedly and inconsistently" Documentation: Minor changes to men-chameleon-bus.txt Doc: fix trivial typo in SubmittingPatches MAINTAINERS: Direct Documentation/DocBook/media properly Documentation: installed man pages don't need to be executable fix Evolution submenu name in email-clients.txt Documentation: Add MCB documentation ... -
Linus Torvalds authored
Merge tag 'hwmon-for-linus-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "Notable changes: - added support for LTM4675, LTC3886, LTC2980, LTM2987, LTC2975, LTC3887, LTC3882, MAX20751, ADM1293, and ADM1294 to PMBus drivers - added support for IT8732F to it87 driver - added support for AMD Carrizo to fam15h_power driver - added support for various new attributes to nct7802 driver - added support for F81866 and F71868 to f71882fg driver" * tag 'hwmon-for-linus-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (45 commits) hwmon: (fam15h_power) Add ratio of Tsample to the PTSC period hwmon: (fam15h_power) Add documentation for new processors support hwmon: (fam15h_power) Update running_avg_capture bit field to 28 hwmon: (fam15h_power) Rename fam15h_power_is_internal_node0 function hwmon: (fam15h_power) Add support for AMD Carrizo hwmon: (ltc2978) Add support for LTM4675 hwmon: (ltc2978) Add polling for chips requiring it hwmon: (pmbus) Enable PEC if the controller supports it hwmon: (pmbus) Use BIT macro hwmon: (ltc2978) Add support for LTC3886 hwmon: (ltc2978) Add support for LTC2980 and LTM2987 hwmon: (ltc2978) Add missing chip IDs for LTC2978 and LTC3882 hwmon: (ltc2978) Use correct ID mask to detect all chips hwmon: (ltc2978) Introduce helper functions for min and max values hwmon: (ltc2978) Introduce feature flags hwmon: (pmbus) Convert command register definitions to enum hwmon: (ltc2978) Add support for LTC2975 hwmon: (ltc2978) Add support for LTC3887 hwmon: (ltc2978) Add additional chip IDs for LTM4676 and LTM4676A hwmon: (ltc2978) Add support for LTC3882 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supplyLinus Torvalds authored
Pull power supply and reset changes from Sebastian Reichel: - new reset driver for ZTE SoCs - add support for sama5d3 reset handling - overhaul of twl4030 charger driver - misc fixes and cleanups * tag 'for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (35 commits) bq2415x_charger: Allow to load and use driver even if notify device is not registered yet twl4030_charger: fix compile error when TWL4030_MADC not available. power: bq24190_charger: Fix charge type sysfs property power: Allow compile test of GPIO consumers if !GPIOLIB power: Export I2C module alias information in missing drivers twl4030_charger: Increase current carefully while watching voltage. twl4030_charger: add ac/mode to match usb/mode twl4030_charger: add software controlled linear charging mode. twl4030_charger: enable manual enable/disable of usb charging. twl4030_charger: allow max_current to be managed via sysfs. twl4030_charger: distinguish between USB current and 'AC' current twl4030_charger: allow fine control of charger current. twl4030_charger: split uA calculation into a function. twl4030_charger: trust phy to determine when USB power is available. twl4030_charger: correctly handle -EPROBE_DEFER from devm_usb_get_phy_by_node twl4030_charger: convert to module_platform_driver instead of ..._probe. twl4030_charger: use runtime_pm to keep usb phy active while charging. rx51-battery: Set name to rx51-battery MAINTAINERS: AVS is not maintained via power supply tree power: olpc_battery: clean up eeprom read function ...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 updates from Martin Schwidefsky: "The big one is support for fake NUMA, splitting a really large machine in more manageable piece improves performance in some cases, e.g. for a KVM host. The FICON Link Incident handling has been improved, this helps the operator to identify degraded or non-operational FICON connections. The save and restore of floating point and vector registers has been overhauled to allow the future use of vector registers in the kernel. A few small enhancement, magic sys-requests for the vt220 console via SCLP, some more assembler code has been converted to C, the PCI error handling is improved. And the usual cleanup and bug fixing" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (59 commits) s390/jump_label: Use %*ph to print small buffers s390/sclp_vt220: support magic sysrequests s390/ctrlchar: improve handling of magic sysrequests s390/numa: remove superfluous ARCH_WANT defines s390/3270: redraw screen on unsolicited device end s390/dcssblk: correct out of bounds array indexes s390/mm: simplify page table alloc/free code s390/pci: move debug messages to debugfs s390/nmi: initialize control register 0 earlier s390/zcrypt: use msleep() instead of mdelay() s390/hmcdrv: fix interrupt registration s390/setup: fix novx parameter s390/uaccess: remove uaccess_primary kernel parameter s390: remove unneeded sizeof(void *) comparisons s390/facilities: remove transactional-execution bits s390/numa: re-add DIE sched_domain_topology_level s390/dasd: enhance CUIR scope detection s390/dasd: fix failing path verification s390/vdso: emit a GNU hash s390/numa: make core to node mapping data dynamic ...
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