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2016-10-24Merge tag 'iio-for-4.10a' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First round of IIO new device support, features and cleanups for the 4.10 cycle. Fair number of outreachy related patches in here. Some of these may well have already been picked up by Greg but git will sort that out for us. Also some good staging cleanup work from other sources. Thanks Brian and Lars in particular for this. New device support * ACCES 104-quad-8 - New driver for this 8 channel encoder input board. Lots of new ABI with this one. * AD7766 - New driver supporting AD7766, AD7766-1, AD7766-2, AD7767, AD7767-1 and AD7767-2 24 bit ADCs. * dmard 10 - New driver for this 3 axis accelerometer. * Honeywell ABP pressure sensors. - New driver covering 56 parts in this series (too many to list here!) * HTS221 - New driver to support this relative humidiy and temperature device. * LMP91000 - New driver for this potentiostat (form of chemical sensor). Nice example of use of the buffered consumer interfaces and the use of a consumer provided trigger. * MiraMEMS DA311 - New driver for this 3 axis accelerometer. * MiraMEMS DA280 - New driver for this 3 axis accelerometer. Follow up caught up with vendor prefixes for these. Staging graduations * isl29018 light sensor - Fixes and cleanups listed below (thanks for your hard work on this Brian!) * sca3000 - Fixes and cleanups listed below. This was one of the small set of drivers that went into staging when IIO was first added. Turns out it had a few bugs and needed to be brought into the modern era! Not clear if I am the only person who actually has one of these still wired to a board. New features (Core) - Add an iio_trigger_validate_own_device helper which relies on the device and trigger having the same parent. Convenient to have this for some of the more complex trigger / device interactions. Was hand rolled in a few drivers already so good to bring it into the core. - Add an iio_read_channel_offset in kernel access helper (similar to the existing one for scale). - IIO_ATTR_{RO, WO, RW} and IIO_DEVICE_ATTR_{RO, WO, RW} macros. These lead some rather contrived function naming, but there is no denying they do reduced boilerplate. I'm going to resist their introduction in drivers 'unless' they form part of a larger set of cleanups. - Counter channel type and index type. New features (Drivers) * hdc100x - Triggered buffer support. * mcp4725 - Device tree bindings and support. - Voltage reference selection. * ti-adc0832 - Triggered buffer support. * ti-adc161s626 - Add regulator support allowing _scale and _offset values to be established and exported. New features (Tools) * iio_generic_buffer - -A option to force enable all channels rather than faulting if some are already enabled (like -a does). Followup patches tidied this support up. Cleanups (Core) - Use kmalloc_array in iio_scan_mask_set. - Take event_attrs field of iio_info structure constant - Staging todo list updates. Most of it was long done. - MAINTAINERS had a wrong directory listing. Cleanups (Drivers) * Missing i2c trivial devices entries. * ad5592r - Fix an endian type related sparse warnings. * ad7150 - Constify the event attribute_group structures. * ad7152 - Add some blank lines to improve readability. - Sampling frequency control via chan-info element rather than hand rolled attributes. - add a new lock to avoid use of mlock for non state change related locking. * ad7280 - Constify atrribute_group structure (second patch covers the event ones) * ad7606 (Lars is driving most of the cleanup on this with some additions from Eva) - Fix improper setting of oversampling pins. This has been broken a very long time in this staging driver, so not going to push this back to stable. - Implement oversampling configuration via the chan_info mask element. - Remove an unused int_vref_mv field. - Remove a reundant name field from ad7606_chip_info. - Remove default device configuration from platform_data in favour of whatever the power on defaults are. - Remove out of band error reporting in the kernel log as not providing much information. - Fix oversampling ratio by having 1 be the value for no oversampling. - Avoid allocating buffer for each data capture. - Factor out common code between periodic and one-shot capture. - Move set_drvdat into common code. - Let the common probe function return int rather than jumping through an ERR_PTR. - Pass struct device * into common remove to simplify code. - Always run trigger handler only once per event (no one can remember why it was being possibly done twice). - Move over to the GPIO descriptor API to shorten and clarify code. - Move the buffer code into the main file as it's not optional and is now rather short in this driver. - Fix the naming of the supply regulator. - Rework regulator handling to handle errors including deferred probing. - Tidy up a ptr_err or 0 return. * ad7746 - Sampling frequency control via info_mask element rather than hand rolled * ad7758 - Sampling frequency control via info_mask element rather than hand rolled attributes. * ad7816 - Constify the event attribute_group structure. * adt7316 - Constify the event attribute group structures. * ak8974 - Cleanup some sparse warnings about endian types. * ak8975 - Cleanup some sparse warnings about endian types. * bmi160 - Spare endian warning cleanups. * isl29018 (towards staging graduation) - Remove unusedvariables and defines. - Improve consistency of error handling. - Signed / unsigned comparison fixes. - Use the IIO_DEVICE_ATTR_{RO, RW} macros - Fix a race in in_illuminance_scale_available_show. - Cleanup exit points of _read_raw - Sanity check if in suspended state during a write_raw call as was already done for read_raw. - Document device tree bidnings. - Document infrared supression controls. - Add some newlines to improve readability and drop one that shouldn't be there. - Fix a poorly named functions name. - Fix multiline coment syntax. - Tidy up a pair or return statements by unifying them. - Rename description in Kconfig for consistency with similar drivers. * lidar - cleanup power management by dropping unnecessary call. * ltr501 - Use the claim_direct_mode helpers. Fix a race condition along the way. * max1027 - Fix a dubious x | !y sparse warning. - Use the new iio_trigger_validate_own_device helper. * max440000 - Clean up some sparse warnings about endian types. * mcp4725 - Use the regulator framework to establish the reference voltage rather than getting it from platform data. - Tidy up a comment typo. - Fix a wrong PTR_ERR query (wrong regulator). * mma7660 - Take a mma7660_nscale static. * mma8452 - Use the new iio_trigger_validate_own_device helper. - Use claim_direct_mode helpers - fix a race condition along the way. * mpl3115 - Use claim_direct_mode helpers - fix a race condition along the way. * ms65611 - Tidy up regulator error handling and clean out a static warning in the mix. * sca3000 - Avoid a potential unitialized variable if a hardware read returns a value that isn't actually supported (mostly warning supression). - Fix a use before setting of the indio_dev->buffer pointer. Broken for a very long time so not going to rush this into stable. - Merge buffer file with core file. We used to always split these. Sometimes it's just not worth the hassle. In this case the device's main feature is it's hardware fifos so unlikely anyone would want to run it without. - Drop the sca3000_register_ring_funcs function as it's a pointless wrapper once we have only one file. - Fix cleaning of flag + setting of size of scan. Without this you can't start the buffer twice and expect sensible (or any) results. Again, broken for a long time so not heading for stable. - Drop the custom watershed setting ABI - for now we'll just support one value. - Move to a hybrid hard / soft buffer design (how we've been doing it for similar devices for a while now!) - Cleanup some unusued variables. - Use a fake channel to support core handling of freefall event registration. - Cleanup the register defines. - Fix an off by one error in axis due to IIO_NO_MOD taking up the 0 value. Been broken since first admission of IIO to the staging tree. - Add readback of the 3db low pass filter frequency and later writing allowing droppign of custom measurement mode attributes as they can be represented by the filter choices that is their main characteristic. - Drop non standard revision attr and replace with dev_info on probe. - Avoid a race in probe. - Various formatting fixes. - Kernel-docify docs that were very nearly in the write format. * tsl2583 - Constify attribute_group structure. * zpa2326 - Drop a redundant DEBUG ifdef. Cleanups (Tools) * iio_generic_buffer - Fix the ? arguement. Previously it sort of worked as you got the help message as a result of it not recognising the arguement.
2016-10-23tools: iio: iio_generic_buffer: drop unneeded parenthesesEva Rachel Retuya
Remove extra parentheses introduced in commit <73e176a tools: iio: iio_generic_buffer: add -A to force-enable all channels>. Suggested-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-10-23tools: iio: iio_generic_buffer: rename and change type of force variableEva Rachel Retuya
Replace the type of 'force' flag from int to bool and at the same time rename it to 'force_autochannels' for better readability. Suggested-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-10-23tools: iio: iio_generic_buffer: add -A to force-enable all channelsEva Rachel Retuya
If attribute/s is/are already enabled (by default or via scripts or manual interaction), issuing -a will fail to enable the channels thereby one has to manually disable the said attribute/s before proceeding with auto-enabling. Add a command-line option -A to force-activate all channels regardless of their current state. Suggested-by: Alison Schofield <amsfield22@gmail.com> Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-10-14Merge tag 'linux-kselftest-4.9-rc1-update' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest updates from Shuah Khan: "This update consists of: - Fixes and improvements to existing tests - Moving code from Documentation to selftests, samples, and tools: * Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and networking tests from Documentation to selftests. * Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay, and blackfin examples from Documentation to samples. * Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from Documentation to tools. * Deletes BUILD_DOCSRC and its dependencies" * tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (21 commits) selftests/futex: Check ANSI terminal color support Doc: update 00-INDEX files to reflect the runnable code move samples: move blackfin gptimers-example from Documentation tools: move pcmcia crc32hash tool from Documentation tools: move laptops dslm tool from Documentation tools: move accounting tool from Documentation samples: move auxdisplay example code from Documentation samples: move watchdog example code from Documentation samples: move timers example code from Documentation samples: move misc-devices/mei example code from Documentation samples: move mic/mpssd example code from Documentation selftests: Move networking/timestamping from Documentation selftests: move watchdog tests from Documentation/watchdog selftests: move ia64 tests from Documentation/ia64 selftests: move vDSO tests from Documentation/vDSO selftests: move ptp tests from Documentation/ptp selftests: move prctl tests from Documentation/prctl selftests: move dnotify_test from Documentation/filesystems selftests/timers: Add missing error code assignment before test selftests/zram: replace ZRAM_LZ4_COMPRESS ...
2016-10-14Merge tag 'powerpc-4.9-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull more powerpc updates from Michael Ellerman: "Some more powerpc updates for 4.9: Freescale updates from Scott Wood: - qbman support (a prerequisite for datapath drivers such as ethernet) - a PCI DMA fix+improvement - reset handler changes - more 8xx optimizations - some cleanups and fixes.' Fixes: - selftests/powerpc: Add missing binaries to .gitignores (Michael Ellerman) - selftests/powerpc: Fix build break caused by EXPORT_SYMBOL changes (Michael Ellerman) - powerpc/pseries: Fix stack corruption in htpe code (Laurent Dufour) - powerpc/64s: Fix power4_fixup_nap placement (Nicholas Piggin) - powerpc/64: Fix incorrect return value from __copy_tofrom_user (Paul Mackerras) - powerpc/mm/hash64: Fix might_have_hea() check (Michael Ellerman) Other: - MAINTAINERS: Remove myself from PA Semi entries (Olof Johansson) - MAINTAINERS: Drop separate pseries entry (Michael Ellerman) - MAINTAINERS: Update powerpc website & add selftests (Michael Ellerman): * tag 'powerpc-4.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (35 commits) powerpc/mm/hash64: Fix might_have_hea() check powerpc/64: Fix incorrect return value from __copy_tofrom_user powerpc/64s: Fix power4_fixup_nap placement powerpc/pseries: Fix stack corruption in htpe code selftests/powerpc: Fix build break caused by EXPORT_SYMBOL changes MAINTAINERS: Update powerpc website & add selftests MAINTAINERS: Drop separate pseries entry MAINTAINERS: Remove myself from PA Semi entries selftests/powerpc: Add missing binaries to .gitignores arch/powerpc: Add CONFIG_FSL_DPAA to corenetXX_smp_defconfig soc/qman: Add self-test for QMan driver soc/bman: Add self-test for BMan driver soc/fsl: Introduce DPAA 1.x QMan device driver soc/fsl: Introduce DPAA 1.x BMan device driver powerpc/8xx: make user addr DTLB miss the short path powerpc/8xx: Move additional DTLBMiss handlers out of exception area powerpc/8xx: use r3 to scratch CR in ITLBmiss soc/fsl/qe: fix gpio save_regs functions powerpc/8xx: add dedicated machine check handler powerpc/8xx: add system_reset_exception ...
2016-10-11Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge more updates from Andrew Morton: - a few block updates that fell in my lap - lib/ updates - checkpatch - autofs - ipc - a ton of misc other things * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (100 commits) mm: split gfp_mask and mapping flags into separate fields fs: use mapping_set_error instead of opencoded set_bit treewide: remove redundant #include <linux/kconfig.h> hung_task: allow hung_task_panic when hung_task_warnings is 0 kthread: add kerneldoc for kthread_create() kthread: better support freezable kthread workers kthread: allow to modify delayed kthread work kthread: allow to cancel kthread work kthread: initial support for delayed kthread work kthread: detect when a kthread work is used by more workers kthread: add kthread_destroy_worker() kthread: add kthread_create_worker*() kthread: allow to call __kthread_create_on_node() with va_list args kthread/smpboot: do not park in kthread_create_on_cpu() kthread: kthread worker API cleanup kthread: rename probe_kthread_data() to kthread_probe_data() scripts/tags.sh: enable code completion in VIM mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping kdump, vmcoreinfo: report memory sections virtual addresses ipc/sem.c: add cond_resched in exit_sme ...
2016-10-11treewide: remove redundant #include <linux/kconfig.h>Masahiro Yamada
Kernel source files need not include <linux/kconfig.h> explicitly because the top Makefile forces to include it with: -include $(srctree)/include/linux/kconfig.h This commit removes explicit includes except the following: * arch/s390/include/asm/facilities_src.h * tools/testing/radix-tree/linux/kernel.h These two are used for host programs. Link: http://lkml.kernel.org/r/1473656164-11929-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-11radix-tree tests: properly initialize mutexRoss Zwisler
The pthread_mutex_t in regression1.c wasn't being initialized properly. Link: http://lkml.kernel.org/r/20160815194237.25967-4-ross.zwisler@linux.intel.com Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-11radix-tree tests: add iteration testRoss Zwisler
There are four cases I can see where we could end up with a NULL 'slot' in radix_tree_next_slot(). This unit test exercises all four of them, making sure that if in the future we have an unsafe path through radix_tree_next_slot(), we'll catch it. Here are details on the four cases: 1) radix_tree_iter_retry() via a non-tagged iteration like radix_tree_for_each_slot(). In this case we currently aren't seeing a bug because radix_tree_iter_retry() sets iter->next_index = iter->index; which means that in in the else case in radix_tree_next_slot(), 'count' is zero, so we skip over the while() loop and effectively just return NULL without ever dereferencing 'slot'. 2) radix_tree_iter_retry() via tagged iteration like radix_tree_for_each_tagged(). This case was giving us NULL pointer dereferences in testing, and was fixed with this commit: commit 3cb9185c6730 ("radix-tree: fix radix_tree_iter_retry() for tagged iterators.") This fix doesn't explicitly check for 'slot' being NULL, though, it works around the NULL pointer dereference by instead zeroing iter->tags in radix_tree_iter_retry(), which makes us bail out of the if() case in radix_tree_next_slot() before we dereference 'slot'. 3) radix_tree_iter_next() via via a non-tagged iteration like radix_tree_for_each_slot(). This currently happens in shmem_tag_pins() and shmem_partial_swap_usage(). As with non-tagged iteration, 'count' in the else case of radix_tree_next_slot() is zero, so we skip over the while() loop and effectively just return NULL without ever dereferencing 'slot'. 4) radix_tree_iter_next() via tagged iteration like radix_tree_for_each_tagged(). This happens in shmem_wait_for_pins(). radix_tree_iter_next() zeros out iter->tags, so we end up exiting radix_tree_next_slot() here: if (flags & RADIX_TREE_ITER_TAGGED) { void *canon = slot; iter->tags >>= 1; if (unlikely(!iter->tags)) return NULL; Link: http://lkml.kernel.org/r/20160815194237.25967-3-ross.zwisler@linux.intel.com Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-11Merge tag 'libnvdimm-for-4.9' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "Aside from the recently added pmem sub-division support these have been in -next for several releases with no reported issues. The sub- division support was included in next-20161010 with no reported issues. It passes all unit tests including new tests for all the new functionality below. Summary: - PMEM sub-division support: Allow a single PMEM region to be divided into multiple namespaces. Originally, ~2 years ago, it was thought that partitions of a /dev/pmemX block device could handle sub-allocations of persistent memory for different use cases. With the decision to not support DAX mappings of raw block-devices, and the genesis of device-dax, the need for having multiple pmem-namespace per region has grown. - Device-DAX unified inode: In support of dynamic-resizing of a device-dax instance the kernel arranges for all mappings of a device-dax node to share the same inode. This allows unmap / truncate / invalidation events to affect all instances of the device similar to the behavior of mmap on block devices. - Hardware error scrubbing reworks: The original address-range-scrub and badblocks tracking solution allowed clearing entries at the individual namespace level, but it failed to clear the internal list of media errors maintained at the bus level. The result was that the next scrub or namespace disable/re-enable event would restore the cleared badblocks, but now that is fixed. The v4.8 kernel introduced an auto-scrub-on-machine-check behavior to repopulate the badblocks list. Now, in v4.9, the auto-scrub behavior can be disabled and simply arrange for the error reported in the machine-check to be added to the list. - DIMM health-event notification support: ACPI 6.1 defines a notification event code that can be send to ACPI NVDIMM devices. A poll(2) capable file descriptor for these events can be obtained from the nmemX/nfit/flags sysfs-attribute of a libnvdimm memory device. - Miscellaneous fixes: NVDIMM-N probe error, device-dax build error, and a change to dedup the flush hint list to not flush the memory controller more than necessary" * tag 'libnvdimm-for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (39 commits) /dev/dax: fix Kconfig dependency build breakage dax: use correct dev_t value dax: convert devm_create_dax_dev to PTR_ERR libnvdimm, namespace: allow creation of multiple pmem-namespaces per region libnvdimm, namespace: lift single pmem limit in scan_labels() libnvdimm, namespace: filter out of range labels in scan_labels() libnvdimm, namespace: enable allocation of multiple pmem namespaces libnvdimm, namespace: update label implementation for multi-pmem libnvdimm, namespace: expand pmem device naming scheme for multi-pmem libnvdimm, region: update nd_region_available_dpa() for multi-pmem support libnvdimm, namespace: sort namespaces by dpa at init libnvdimm, namespace: allow multiple pmem-namespaces per region at scan time tools/testing/nvdimm: support for sub-dividing a pmem region libnvdimm, namespace: unify blk and pmem label scanning libnvdimm, namespace: refactor uuid_show() into a namespace_to_uuid() helper libnvdimm, label: convert label tracking to a linked list libnvdimm, region: move region-mapping input-paramters to nd_mapping_desc nvdimm: reduce duplicated wpq flushes libnvdimm: clear the internal poison_list when clearing badblocks pmem: reduce kmap_atomic sections to the memcpys only ...
2016-10-11selftests/futex: Check ANSI terminal color supportSeongJae Park
Because test for color support of the running shell does not aware ANSI type terminals, it does not print colorful messages on some environemnt. This commit modifies the test to aware ANSI type terminal, too. Signed-off-by: SeongJae Park <sj38.park@gmail.com> Acked-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2016-10-10Merge branch 'mm-pkeys-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull protection keys syscall interface from Thomas Gleixner: "This is the final step of Protection Keys support which adds the syscalls so user space can actually allocate keys and protect memory areas with them. Details and usage examples can be found in the documentation. The mm side of this has been acked by Mel" * 'mm-pkeys-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pkeys: Update documentation x86/mm/pkeys: Do not skip PKRU register if debug registers are not used x86/pkeys: Fix pkeys build breakage for some non-x86 arches x86/pkeys: Add self-tests x86/pkeys: Allow configuration of init_pkru x86/pkeys: Default to a restrictive init PKRU pkeys: Add details of system call use to Documentation/ generic syscalls: Wire up memory protection keys syscalls x86: Wire up protection keys system calls x86/pkeys: Allocation/free syscalls x86/pkeys: Make mprotect_key() mask off additional vm_flags mm: Implement new pkey_mprotect() system call x86/pkeys: Add fault handling for PF_PK page fault bit
2016-10-10Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf tooling updates from Thomas Gleixner: - handle uretprobe placement proper on little endian PPC64 - fix buffer handling in libtraceevent - add a missing pointer derefence in perf probe - fix the build of host tools in cross builds - fix Intel PT timestamp handling - synchronize memcpy, cpufeatures and bpf headers with the kernel headers - support for vendor supplied JSON files describing PMU events - a new set of tool tips - initial work for clang/llvm support - address some style issues found by cppcheck * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits) tools build: Add feature detection for g++ tools build: Support compiling C++ source file perf top/report: Add tips about a list option perf report/top: Add a tip about system-wide collection from all CPUs perf report/top: Add a tip about source line numbers with overhead tools: Synchronize tools/include/uapi/linux/bpf.h tools: Synchronize tools/arch/x86/include/asm/cpufeatures.h perf bench mem: Sync memcpy assembly sources with the kernel perf jevents: Fix Intel JSON fixed counter conversions tools lib traceevent: Fix kbuffer_read_at_offset() perf intel-pt: Fix MTC timestamp calculation for large MTC periods perf intel-pt: Fix estimated timestamps for cycle-accurate mode perf uretprobe ppc64le: Fix probe location perf pmu-events: Add Skylake frontend MSR support perf pmu-events: Fix fixed counters on Intel perf tools: Make alias matching case-insensitive perf tools: Allow period= in perf stat CPU event descriptions. perf tools: Add README for info on parsing JSON/map files perf list jevents: Add support for event list topics perf list: Support long jevents descriptions ...
2016-10-07Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge updates from Andrew Morton: - fsnotify updates - ocfs2 updates - all of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (127 commits) console: don't prefer first registered if DT specifies stdout-path cred: simpler, 1D supplementary groups CREDITS: update Pavel's information, add GPG key, remove snail mail address mailmap: add Johan Hovold .gitattributes: set git diff driver for C source code files uprobes: remove function declarations from arch/{mips,s390} spelling.txt: "modeled" is spelt correctly nmi_backtrace: generate one-line reports for idle cpus arch/tile: adopt the new nmi_backtrace framework nmi_backtrace: do a local dump_stack() instead of a self-NMI nmi_backtrace: add more trigger_*_cpu_backtrace() methods min/max: remove sparse warnings when they're nested Documentation/filesystems/proc.txt: add more description for maps/smaps mm, proc: fix region lost in /proc/self/smaps proc: fix timerslack_ns CAP_SYS_NICE check when adjusting self proc: add LSM hook checks to /proc/<tid>/timerslack_ns proc: relax /proc/<tid>/timerslack_ns capability requirements meminfo: break apart a very long seq_printf with #ifdefs seq/proc: modify seq_put_decimal_[u]ll to take a const char *, not char proc: faster /proc/*/status ...
2016-10-07Merge tag 'powerpc-4.9-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Highlights: - Major rework of Book3S 64-bit exception vectors (Nicholas Piggin) - Use gas sections for arranging exception vectors et. al. - Large set of TM cleanups and selftests (Cyril Bur) - Enable transactional memory (TM) lazily for userspace (Cyril Bur) - Support for XZ compression in the zImage wrapper (Oliver O'Halloran) - Add support for bpf constant blinding (Naveen N. Rao) - Beginnings of upstream support for PA Semi Nemo motherboards (Darren Stevens) Fixes: - Ensure .mem(init|exit).text are within _stext/_etext (Michael Ellerman) - xmon: Don't use ld on 32-bit (Michael Ellerman) - vdso64: Use double word compare on pointers (Anton Blanchard) - powerpc/nvram: Fix an incorrect partition merge (Pan Xinhui) - powerpc: Fix usage of _PAGE_RO in hugepage (Christophe Leroy) - powerpc/mm: Update FORCE_MAX_ZONEORDER range to allow hugetlb w/4K (Aneesh Kumar K.V) - Fix memory leak in queue_hotplug_event() error path (Andrew Donnellan) - Replay hypervisor maintenance interrupt first (Nicholas Piggin) Various performance optimisations (Anton Blanchard): - Align hot loops of memset() and backwards_memcpy() - During context switch, check before setting mm_cpumask - Remove static branch prediction in atomic{, 64}_add_unless - Only disable HAVE_EFFICIENT_UNALIGNED_ACCESS on POWER7 little endian - Set default CPU type to POWER8 for little endian builds Cleanups & features: - Sparse fixes/cleanups (Daniel Axtens) - Preserve CFAR value on SLB miss caused by access to bogus address (Paul Mackerras) - Radix MMU fixups for POWER9 (Aneesh Kumar K.V) - Support for setting used_(vsr|vr|spe) in sigreturn path (for CRIU) (Simon Guo) - Optimise syscall entry for virtual, relocatable case (Nicholas Piggin) - Optimise MSR handling in exception handling (Nicholas Piggin) - Support for kexec with Radix MMU (Benjamin Herrenschmidt) - powernv EEH fixes (Russell Currey) - Suprise PCI hotplug support for powernv (Gavin Shan) - Endian/sparse fixes for powernv PCI (Gavin Shan) - Defconfig updates (Anton Blanchard) - KVM: PPC: Book3S HV: Migrate pinned pages out of CMA (Balbir Singh) - cxl: Flush PSL cache before resetting the adapter (Frederic Barrat) - cxl: replace loop with for_each_child_of_node(), remove unneeded of_node_put() (Andrew Donnellan) - Fix HV facility unavailable to use correct handler (Nicholas Piggin) - Remove unnecessary syscall trampoline (Nicholas Piggin) - fadump: Fix build break when CONFIG_PROC_VMCORE=n (Michael Ellerman) - Quieten EEH message when no adapters are found (Anton Blanchard) - powernv: Add PHB register dump debugfs handle (Russell Currey) - Use kprobe blacklist for exception handlers & asm functions (Nicholas Piggin) - Document the syscall ABI (Nicholas Piggin) - MAINTAINERS: Update cxl maintainers (Michael Neuling) - powerpc: Remove all usages of NO_IRQ (Michael Ellerman) Minor cleanups: - Andrew Donnellan, Christophe Leroy, Colin Ian King, Cyril Bur, Frederic Barrat, Pan Xinhui, PrasannaKumar Muralidharan, Rui Teng, Simon Guo" * tag 'powerpc-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits) powerpc/bpf: Add support for bpf constant blinding powerpc/bpf: Implement support for tail calls powerpc/bpf: Introduce accessors for using the tmp local stack space powerpc/fadump: Fix build break when CONFIG_PROC_VMCORE=n powerpc: tm: Enable transactional memory (TM) lazily for userspace powerpc/tm: Add TM Unavailable Exception powerpc: Remove do_load_up_transact_{fpu,altivec} powerpc: tm: Rename transct_(*) to ck(\1)_state powerpc: tm: Always use fp_state and vr_state to store live registers selftests/powerpc: Add checks for transactional VSXs in signal contexts selftests/powerpc: Add checks for transactional VMXs in signal contexts selftests/powerpc: Add checks for transactional FPUs in signal contexts selftests/powerpc: Add checks for transactional GPRs in signal contexts selftests/powerpc: Check that signals always get delivered selftests/powerpc: Add TM tcheck helpers in C selftests/powerpc: Allow tests to extend their kill timeout selftests/powerpc: Introduce GPR asm helper header file selftests/powerpc: Move VMX stack frame macros to header file selftests/powerpc: Rework FPU stack placement macros and move to header file selftests/powerpc: Check for VSX preservation across userspace preemption ...
2016-10-07selftests: expanding more mlock selftestSimon Guo
This patch will randomly perform mlock/mlock2 on a given memory region, and verify the RLIMIT_MEMLOCK limitation works properly. Suggested-by: David Rientjes <rientjes@google.com> Link: http://lkml.kernel.org/r/1473325970-11393-4-git-send-email-wei.guo.simon@gmail.com Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Eric B Munson <emunson@akamai.com> Cc: Simon Guo <wei.guo.simon@gmail.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Alexey Klimov <klimov.linux@gmail.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07selftest: move seek_to_smaps_entry() out of mlock2-tests.cSimon Guo
Function seek_to_smaps_entry() can be useful for other selftest functionalities, so move it out to header file. Link: http://lkml.kernel.org/r/1473325970-11393-3-git-send-email-wei.guo.simon@gmail.com Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Eric B Munson <emunson@akamai.com> Cc: Simon Guo <wei.guo.simon@gmail.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Alexey Klimov <klimov.linux@gmail.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07selftests/vm: add test for mlock() when areas are intersectedSimon Guo
This patch adds mlock() test for multiple invocation on the same address area, and verify it doesn't mess the rlimit mlock limitation. Link: http://lkml.kernel.org/r/1472554781-9835-5-git-send-email-wei.guo.simon@gmail.com Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Cc: Alexey Klimov <klimov.linux@gmail.com> Cc: Eric B Munson <emunson@akamai.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Michal Hocko <mhocko@suse.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Simon Guo <wei.guo.simon@gmail.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07selftest: split mlock2_ funcs into separate mlock2.hSimon Guo
To prepare mlock2.h whose functionality will be reused. Link: http://lkml.kernel.org/r/1472554781-9835-4-git-send-email-wei.guo.simon@gmail.com Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Cc: Alexey Klimov <klimov.linux@gmail.com> Cc: Eric B Munson <emunson@akamai.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Michal Hocko <mhocko@suse.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Simon Guo <wei.guo.simon@gmail.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07Merge branch 'for-4.9/libnvdimm' into libnvdimm-for-nextDan Williams
2016-10-07tools/testing/nvdimm: support for sub-dividing a pmem regionDan Williams
Update nfit_test to handle multiple sub-allocations within a given pmem region. The mock resource now tracks and un-tracks sub-ranges as they are requested and released (either explicitly or via devm callback). Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-10-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull namespace updates from Eric Biederman: "This set of changes is a number of smaller things that have been overlooked in other development cycles focused on more fundamental change. The devpts changes are small things that were a distraction until we managed to kill off DEVPTS_MULTPLE_INSTANCES. There is an trivial regression fix to autofs for the unprivileged mount changes that went in last cycle. A pair of ioctls has been added by Andrey Vagin making it is possible to discover the relationships between namespaces when referring to them through file descriptors. The big user visible change is starting to add simple resource limits to catch programs that misbehave. With namespaces in general and user namespaces in particular allowing users to use more kinds of resources, it has become important to have something to limit errant programs. Because the purpose of these limits is to catch errant programs the code needs to be inexpensive to use as it always on, and the default limits need to be high enough that well behaved programs on well behaved systems don't encounter them. To this end, after some review I have implemented per user per user namespace limits, and use them to limit the number of namespaces. The limits being per user mean that one user can not exhause the limits of another user. The limits being per user namespace allow contexts where the limit is 0 and security conscious folks can remove from their threat anlysis the code used to manage namespaces (as they have historically done as it root only). At the same time the limits being per user namespace allow other parts of the system to use namespaces. Namespaces are increasingly being used in application sand boxing scenarios so an all or nothing disable for the entire system for the security conscious folks makes increasing use of these sandboxes impossible. There is also added a limit on the maximum number of mounts present in a single mount namespace. It is nontrivial to guess what a reasonable system wide limit on the number of mount structure in the kernel would be, especially as it various based on how a system is using containers. A limit on the number of mounts in a mount namespace however is much easier to understand and set. In most cases in practice only about 1000 mounts are used. Given that some autofs scenarious have the potential to be 30,000 to 50,000 mounts I have set the default limit for the number of mounts at 100,000 which is well above every known set of users but low enough that the mount hash tables don't degrade unreaonsably. These limits are a start. I expect this estabilishes a pattern that other limits for resources that namespaces use will follow. There has been interest in making inotify event limits per user per user namespace as well as interest expressed in making details about what is going on in the kernel more visible" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (28 commits) autofs: Fix automounts by using current_real_cred()->uid mnt: Add a per mount namespace limit on the number of mounts netns: move {inc,dec}_net_namespaces into #ifdef nsfs: Simplify __ns_get_path tools/testing: add a test to check nsfs ioctl-s nsfs: add ioctl to get a parent namespace nsfs: add ioctl to get an owning user namespace for ns file descriptor kernel: add a helper to get an owning user namespace for a namespace devpts: Change the owner of /dev/pts/ptmx to the mounter of /dev/pts devpts: Remove sync_filesystems devpts: Make devpts_kill_sb safe if fsi is NULL devpts: Simplify devpts_mount by using mount_nodev devpts: Move the creation of /dev/pts/ptmx into fill_super devpts: Move parse_mount_options into fill_super userns: When the per user per user namespace limit is reached return ENOSPC userns; Document per user per user namespace limits. mntns: Add a limit on the number of mount namespaces. netns: Add a limit on the number of net namespaces cgroupns: Add a limit on the number of cgroup namespaces ipcns: Add a limit on the number of ipc namespaces ...
2016-10-06selftests/powerpc: Fix build break caused by EXPORT_SYMBOL changesMichael Ellerman
The changes to make EXPORT_SYMBOL work in asm, specifically commit 9445aa1a3062 ("ppc: move exports to definitions"), in the kbuild tree, breaks some of our selftests. That is because we symlink the kernel code into the selftest, and shim the required headers, and we are now missing asm/export.h So create a minimal export.h to keep the tests building once powerpc and the kbuild trees are merged. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-06selftests/powerpc: Add missing binaries to .gitignoresMichael Ellerman
Some of the recent new selftests were missing additions to .gitignore, add them now. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-05tools build: Add feature detection for g++Wang Nan
Check if g++ is available. The result will be used by builtin clang and LLVM support. Since LLVM requires C++11, this feature detector checks std::move(). Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Alexei Starovoitov <ast@fb.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1474874832-134786-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05tools build: Support compiling C++ source fileWang Nan
Add new rule to compile .cpp file to .o use g++. C++ support is required for built-in clang and LLVM support. Linker side support will be introduced by following commits. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Alexei Starovoitov <ast@fb.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1474874832-134786-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05perf top/report: Add tips about a list optionNambong Ha
Add two tips that describe --list option of config sub-command and explain how to choose particular config file location. Signed-off-by: Nambong Ha <over3025@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Taeung Song <taeung@kosslab.kr> Link: http://lkml.kernel.org/r/1475191562-3240-1-git-send-email-over3025@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05perf report/top: Add a tip about system-wide collection from all CPUsDonghyun Kim
Signed-off-by: Donghyun Kim <dongdong9335@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Taeung Song <taeung@kosslab.kr> Link: http://lkml.kernel.org/r/1475187357-21882-1-git-send-email-dongdong9335@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05perf report/top: Add a tip about source line numbers with overheadKim SeonYoung
There is a existing tip as below. If you have debuginfo enabled, try: perf report -s sym,srcline However this tip only describe a condition to use --sort sym,scrline options. So there is lack of explanation in the tip. I think that it would be better to add a tip that exactly explains the feature of --sort srcline. Signed-off-by: Seonyoung Kim <adamas0414@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Taeung Song <taeung@kosslab.kr> Link: http://lkml.kernel.org/r/1475194602-5596-1-git-send-email-adamas0414@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05tools: Synchronize tools/include/uapi/linux/bpf.hArnaldo Carvalho de Melo
Commit 747ea55e4f78 ("bpf: fix bpf_skb_in_cgroup helper naming") renames BPF_FUNC_skb_in_cgroup to bpf_skb_under_cgroup, triggering this warning while building perf: Warning: tools/include/uapi/linux/bpf.h differs from kernel Update the copy to ack that, no changes needed, as BPF_FUNC_skb_in_cgroup isn't used so far. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-x67d2gq8ct6ko12ex14q8bbx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05tools: Synchronize tools/arch/x86/include/asm/cpufeatures.hArnaldo Carvalho de Melo
Due to ffb173e657fa ("x86/mce: Drop X86_FEATURE_MCE_RECOVERY and the related model string test"), no changes needed in any other place as no tool uses X86_FEATURE_MCE_RECOVERY. Silences this detected drift when building tools/perf: Warning: tools/arch/x86/include/asm/cpufeatures.h differs from kernel Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-f3sfimg58t3cycbbl8f5cwxf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05perf bench mem: Sync memcpy assembly sources with the kernelArnaldo Carvalho de Melo
Commit 9a6fb28a355d ("x86/mce: Improve memcpy_mcsafe()") renames memcpy_mcsafe() to memcpy_mcsafe_unrolled(), making tools/arch/x86/lib/memcpy_64.S drift from the its kernel counterpart, triggering this warning in the perf build: Warning: tools/arch/x86/lib/memcpy_64.S differs from kernel Sync that copy to acknowledge that, no changes to 'perf bench' are needed, as this function is not used there. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-xfwc1raw8obyrctxerwt1bbb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05Merge tag 'staging-4.9-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging and IIO updates from Greg KH: "Here is the big staging and IIO driver pull request for 4.9-rc1. There are a lot of patches in here, the majority due to the drivers/staging/greybus/ subsystem being merged in with full development history that went back a few years, in order to preserve the work that those developers did over time. Lots and lots of tiny cleanups happened in the tree as well, due to the Outreachy application process and lots of other developers showing up for the first time to clean code up. Along with those changes, we deleted a wireless driver, and added a raspberrypi driver (currently marked broken), and lots of new iio drivers. Overall the tree still shrunk with more lines removed than added, about 10 thousand lines removed in total. Full details are in the very long shortlog below. All of this has been in the linux-next tree with no issues. There will be some merge problems with other subsystem trees, but those are all minor problems and shouldn't be hard to work out when they happen (MAINTAINERS and some lustre build problems with the IB tree)" And furter from me asking for clarification about greybus: "Right now there is a phone from Motorola shipping with this code (a slightly older version, but the same tree), so even though Ara is not alive in the same form, the functionality is happening. We are working with the developers of that phone to merge the newer stuff in with their fork so they can use the upstream version in future versions of their phone product line. Toshiba has at least one chip shipping in their catalog that needs/uses this protocol over a Unipro link, and rumor has it that there might be more in the future. There are also other users of the greybus protocols, there is a talk next week at ELC that shows how it is being used across a network connection to control a device, and previous ELC talks have showed the protocol stack being used over USB to drive embedded Linux boards. I've also talked to some people who are starting to work to add a host controller driver to control arduinos as the greybus PHY protocols are very useful to control a serial/i2c/spio/whatever device across a random physical link, as it is a way to have a self-describing device be attached to a host without needing manual configuration. So yes, people are using it, and there is still the chance that it will show up in a phone/laptop/tablet/whatever from Google in the future as well, the tech isn't dead, even if the original large phone project happens to be" * tag 'staging-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (3703 commits) Staging: fbtft: Fix bug in fbtft-core staging: rtl8188eu: fix double unlock error in rtw_resume_process() staging:r8188eu: remove GEN_MLME_EXT_HANDLER macro staging:r8188eu: remove GEN_DRV_CMD_HANDLER macro staging:r8188eu: remove GEN_EVT_CODE macro staging:r8188eu: remove GEN_CMD_CODE macro staging:r8188eu: remove pkt_newalloc member of the recv_buf structure staging:r8188eu: remove rtw_handle_dualmac declaration staging:r8188eu: remove (RGTRY|BSSID)_(OFT|SZ) macros staging:r8188eu: change rtl8188e_process_phy_info function argument type Staging: fsl-mc: Remove blank lines Staging: fsl-mc: Fix unaligned * in block comments Staging: comedi: Align the * in block comments Staging : ks7010 : Fix block comments warninig Staging: vt6655: Remove explicit NULL comparison using Coccinelle staging: rtl8188eu: core: rtw_xmit: Use macros instead of constants staging: rtl8188eu: core: rtw_xmit: Move constant of the right side staging: dgnc: Fix lines longer than 80 characters Staging: dgnc: constify attribute_group structures Staging: most: hdm-dim2: constify attribute_group structures ...
2016-10-05perf jevents: Fix Intel JSON fixed counter conversionsAndi Kleen
Intel fixed counters are special cases in the JSON conversion process because their decoding differs between perf and the event files. Add some missing entries in the conversion table. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1475696832-9188-4-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05tools lib traceevent: Fix kbuffer_read_at_offset()Namhyung Kim
When it's called with an offset less than or equal to the first event, it'll return a garbage value since the data is not initialized. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20161001101700.29146-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05perf intel-pt: Fix MTC timestamp calculation for large MTC periodsAdrian Hunter
The MTC packet provides a 8-bit slice of CTC which is related to TSC by the TMA packet, however the TMA packet only provides the lower 16 bits of CTC. If mtc_shift > 8 then some of the MTC bits are not in the CTC provided by the TMA packet. Fix-up the last_mtc calculated from the TMA packet by copying the missing bits from the current MTC assuming the least difference between the two, and that the current MTC comes after last_mtc. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: stable@vger.kernel.org # v4.3+ Link: http://lkml.kernel.org/r/1475062896-22274-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05perf intel-pt: Fix estimated timestamps for cycle-accurate modeAdrian Hunter
In cycle-accurate mode, timestamps can be calculated from CYC packets. The decoder also estimates timestamps based on the number of instructions since the last timestamp. For that to work in cycle-accurate mode, the instruction count needs to be reset to zero when a timestamp is calculated from a CYC packet, but that wasn't happening, so fix it. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: stable@vger.kernel.org # v4.3+ Link: http://lkml.kernel.org/r/1475062896-22274-1-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-05perf uretprobe ppc64le: Fix probe locationRavi Bangoria
Perf uretprobe probes on GEP(Global Entry Point) which fails to record all function calls via LEP(Local Entry Point). Fix that by probing on LEP. Objdump: 00000000100005f0 <doit>: 100005f0: 02 10 40 3c lis r2,4098 100005f4: 00 7f 42 38 addi r2,r2,32512 100005f8: a6 02 08 7c mflr r0 100005fc: 10 00 01 f8 std r0,16(r1) 10000600: f8 ff e1 fb std r31,-8(r1) Before applying patch: $ cat /sys/kernel/debug/tracing/uprobe_events r:probe_uprobe_test/doit /home/ravi/uprobe_test:0x00000000000005f0 After applying patch: $ cat /sys/kernel/debug/tracing/uprobe_events r:probe_uprobe_test/doit /home/ravi/uprobe_test:0x00000000000005f8 This is not the case with kretprobes because the kernel itself finds LEP and probes on it. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1475576865-6562-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-10-04Merge tag 'spi-v4.9' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "The SPI subsystem has also had quite a quiet release, though with a fairly large set of per-driver changes and several new drivers. The bulk of the changes are: - lots and lots of cleanups and improvements for the fsl-espi driver - new drivers for Broadcom MSPI/iProc/STB, Cavium ThunderX and J-Core" * tag 'spi-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (80 commits) spi: sc18is602: Change gpiod_set_value to gpiod_set_value_cansleep spi: pxa2xx: Fix build error because of missing header spi: imx: fix error return code in spi_imx_probe() spi: pxa2xx: Add support for GPIO descriptor chip selects spi: imx: Gracefully handle NULL master->cs_gpios spi: iproc-qspi: Add Broadcom iProc SoCs support spi: fsl-espi: improve return value handling in fsl_espi_probe spi: fsl-espi: simplify of_fsl_espi_probe spi: fsl-espi: remove unused variable in fsl_espi_setup spi: bcm-qspi: Fix error return code in bcm_qspi_probe() spi: bcm-qspi: Fix return value check in bcm_qspi_probe() spi: bcm-qspi: fix suspend/resume #ifdef spi: bcm-qspi: don't include linux/mtd/cfi.h spi: core: Use spi_sync_transfer() in spi_write()/spi_read() spi: fsl-espi: improve and extend register bit definitions spi: fsl-espi: align register access with other drivers spi: fsl-espi: improve and simplify interrupt handler spi: fsl-espi: simplify fsl_espi_setup_transfer spi: imx: support loopback mode on imx35 spi: imx: set spi_bus_clk for mx1, mx31 and mx35 ...
2016-10-04selftests/powerpc: Add checks for transactional VSXs in signal contextsCyril Bur
If a thread receives a signal while transactional the kernel creates a second context to show the transactional state of the process. This test loads some known values and waits for a signal and confirms that the expected values are in the signal context. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Add checks for transactional VMXs in signal contextsCyril Bur
If a thread receives a signal while transactional the kernel creates a second context to show the transactional state of the process. This test loads some known values and waits for a signal and confirms that the expected values are in the signal context. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Add checks for transactional FPUs in signal contextsCyril Bur
If a thread receives a signal while transactional the kernel creates a second context to show the transactional state of the process. This test loads some known values and waits for a signal and confirms that the expected values are in the signal context. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Add checks for transactional GPRs in signal contextsCyril Bur
If a thread receives a signal while transactional the kernel creates a second context to show the transactional state of the process. This test loads some known values and waits for a signal and confirms that the expected values are in the signal context. Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Check that signals always get deliveredCyril Bur
Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Add TM tcheck helpers in CCyril Bur
Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Allow tests to extend their kill timeoutCyril Bur
Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Introduce GPR asm helper header fileCyril Bur
Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Move VMX stack frame macros to header fileCyril Bur
Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04selftests/powerpc: Rework FPU stack placement macros and move to header fileCyril Bur
The FPU regs are placed at the top of the stack frame. Currently the position expected to be passed to the macro. The macros now should be passed the stack frame size and from there they can calculate where to put the regs, this makes the use simpler. Also move them to a header file to be used in an different area of the powerpc selftests Signed-off-by: Cyril Bur <cyrilbur@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>