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2017-02-22userfaultfd: selftest: test UFFDIO_ZEROPAGE on all memory typesAndrea Arcangeli1-1/+81
This will verify -EINVAL is returned with hugetlbfs/shmem and it'll do a functional test of UFFDIO_ZEROPAGE on anonymous memory. Link: http://lkml.kernel.org/r/20161216144821.5183-42-aarcange@redhat.com Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22userfaultfd: non-cooperative: selftest: add test for FORK, MADVDONTNEED and REMAP eventsMike Rapoport1-12/+163
Add test for userfaultfd events used in non-cooperative scenario when the process that monitors the userfaultfd and handles user faults is not the same process that causes the page faults. Link: http://lkml.kernel.org/r/20161216144821.5183-41-aarcange@redhat.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22userfaultfd: non-cooperative: selftest: add ufd parameter to copy_pageMike Rapoport1-5/+5
With future addition of event tests, copy_page will be called with different userfault file descriptors Link: http://lkml.kernel.org/r/20161216144821.5183-40-aarcange@redhat.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22userfaultfd: non-cooperative: selftest: introduce userfaultfd_openMike Rapoport1-16/+25
userfaultfd_open will be needed by the non cooperative selftest. Link: http://lkml.kernel.org/r/20161216144821.5183-39-aarcange@redhat.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22userfaultfd: shmem: add userfaultfd_shmem testMike Rapoport3-2/+50
The test verifies that anonymous shared mapping can be used with userfault using the existing testing method. The shared memory area is allocated using mmap(..., MAP_SHARED | MAP_ANONYMOUS, ...) and released using madvise(MADV_REMOVE) Link: http://lkml.kernel.org/r/20161216144821.5183-35-aarcange@redhat.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22userfaultfd: shmem: allow registration of shared memory rangesMike Rapoport1-1/+1
Expand the userfaultfd_register/unregister routines to allow shared memory VMAs. Currently, there is no UFFDIO_ZEROPAGE and write-protection support for shared memory VMAs, which is reflected in ioctl methods supported by uffdio_register. Link: http://lkml.kernel.org/r/20161216144821.5183-34-aarcange@redhat.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22userfaultfd: hugetlbfs: add userfaultfd_hugetlb testMike Kravetz3-17/+161
Test userfaultfd hugetlb functionality by using the existing testing method (in userfaultfd.c). Instead of an anonymous memeory, a hugetlbfs file is mmap'ed private. In this way fallocate hole punch can be used to release pages. This is because madvise(MADV_DONTNEED) is not supported for huge pages. Use the same file, but create wrappers for allocating ranges and releasing pages. Compile userfaultfd.c with HUGETLB_TEST defined to produce an executable to test userfaultfd hugetlb functionality. Link: http://lkml.kernel.org/r/20161216144821.5183-23-aarcange@redhat.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Michael Rapoport <RAPOPORT@il.ibm.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22tools/vm: add missing Makefile rulesDaniel Thompson1-0/+8
Currently the tools/vm Makefile has a rather arbitrary implicit build rule; page-types is the first value in TARGETS so lets just build that one! Additionally there is no install rule and this is needed for make -C tools vm_install to work properly. Provide a more sensible implicit build rule and a new install rule. Note that the variables names used by the install rule (DESTDIR and sbindir) are copied from prior-art in tools/power/cpupower. Link: http://lkml.kernel.org/r/20170113165630.27541-1-daniel.thompson@linaro.org Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22Merge tag 'staging-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds1-0/+2
Pull staging/iio driver updates from Greg KH: "Here is the big staging and iio driver patchsets for 4.11-rc1. We almost broke even this time around, with only a few thousand lines added overall, as we removed the old and obsolete i4l code, but added some new drivers for the RPi platform, as well as adding some new IIO drivers. All of these have been in linux-next for a while with no reported issues" * tag 'staging-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (669 commits) Staging: vc04_services: Fix the "space prohibited" code style errors Staging: vc04_services: Fix the "wrong indent" code style errors staging: octeon: Use net_device_stats from struct net_device Staging: rtl8192u: ieee80211: ieee80211.h - style fix Staging: rtl8192u: ieee80211: ieee80211_tx.c - style fix Staging: rtl8192u: ieee80211: rtl819x_BAProc.c - style fix Staging: rtl8192u: ieee80211: ieee80211_module.c - style fix Staging: rtl8192u: ieee80211: rtl819x_TSProc.c - style fix Staging: rtl8192u: r8192U.h - style fix Staging: rtl8192u: r8192U_core.c - style fix Staging: rtl8192u: r819xU_cmdpkt.c - style fix staging: rtl8192u: blank lines aren't necessary before a close brace '}' staging: rtl8192u: Adding space after enum and struct definition staging: rtl8192u: Adding space after struct definition Staging: ks7010: Add required and preferred spaces around operators Staging: ks7010: ks*: Remove redundant blank lines Staging: ks7010: ks*: Add missing blank lines after declarations staging: visorbus, replace init_timer with setup_timer staging: vt6656: rxtx.c Removed multiple dereferencing staging: vt6656: Alignment match open parenthesis ...
2017-02-22Merge tag 'driver-core-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds1-5/+20
Pull driver core updates from Greg KH: "Here is the "small" driver core patches for 4.11-rc1. Not much here, some firmware documentation and self-test updates, a debugfs code formatting issue, and a new feature for call_usermodehelper to make it more robust on systems that want to lock it down in a more secure way. All of these have been linux-next for a while now with no reported issues" * tag 'driver-core-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: kernfs: handle null pointers while printing node name and path Introduce STATIC_USERMODEHELPER to mediate call_usermodehelper() Make static usermode helper binaries constant kmod: make usermodehelper path a const string firmware: revamp firmware documentation selftests: firmware: send expected errors to /dev/null selftests: firmware: only modprobe if driver is missing platform: Print the resource range if device failed to claim kref: prefer atomic_inc_not_zero to atomic_add_unless debugfs: improve formatting of debugfs_real_fops()
2017-02-22Merge tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds3-100/+225
Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver patchset for 4.11-rc1. Lots of different driver subsystems updated here: rework for the hyperv subsystem to handle new platforms better, mei and w1 and extcon driver updates, as well as a number of other "minor" driver updates. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (169 commits) goldfish: Sanitize the broken interrupt handler x86/platform/goldfish: Prevent unconditional loading vmbus: replace modulus operation with subtraction vmbus: constify parameters where possible vmbus: expose hv_begin/end_read vmbus: remove conditional locking of vmbus_write vmbus: add direct isr callback mode vmbus: change to per channel tasklet vmbus: put related per-cpu variable together vmbus: callback is in softirq not workqueue binder: Add support for file-descriptor arrays binder: Add support for scatter-gather binder: Add extra size to allocator binder: Refactor binder_transact() binder: Support multiple /dev instances binder: Deal with contexts in debugfs binder: Support multiple context managers binder: Split flat_binder_object auxdisplay: ht16k33: remove private workqueue auxdisplay: ht16k33: rework input device initialization ...
2017-02-22Merge tag 'usb-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds3-3/+213
Pull USB/PHY updates from Greg KH: "Here is the big USB and PHY driver updates for 4.11-rc1. Nothing major, just the normal amount of churn in the usb gadget and dwc and xhci controllers, new device ids, new phy drivers, a new usb-serial driver, and a few other minor changes in different USB drivers. All have been in linux-next for a long time with no reported issues" * tag 'usb-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (265 commits) usb: cdc-wdm: remove logically dead code USB: serial: keyspan: drop header file USB: serial: io_edgeport: drop io-tables header file usb: musb: add code comment for clarification usb: misc: add USB251xB/xBi Hi-Speed Hub Controller Driver usb: misc: usbtest: remove redundant check on retval < 0 USB: serial: upd78f0730: sort device ids USB: serial: upd78f0730: add ID for EVAL-ADXL362Z ohci-hub: fix typo in dbg_port macro usb: musb: dsps: Manage CPPI 4.1 DMA interrupt in DSPS usb: musb: tusb6010: Clean up tusb_omap_dma structure usb: musb: cppi_dma: Clean up cppi41_dma_controller structure usb: musb: cppi_dma: Clean up cppi structure usb: musb: cppi41: Detect aborted transfers in cppi41_dma_callback() usb: musb: dma: Add a DMA completion platform callback drivers: usb: usbip: Add missing break statement to switch usb: mtu3: remove redundant dev_err call in get_ssusb_rscs() USB: serial: mos7840: fix another NULL-deref at open USB: serial: console: clean up sanity checks USB: serial: console: fix uninitialised spinlock ...
2017-02-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds17-313/+2536
Pull networking updates from David Miller: "Highlights: 1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini Varadhan. 2) Simplify classifier state on sk_buff in order to shrink it a bit. From Willem de Bruijn. 3) Introduce SIPHASH and it's usage for secure sequence numbers and syncookies. From Jason A. Donenfeld. 4) Reduce CPU usage for ICMP replies we are going to limit or suppress, from Jesper Dangaard Brouer. 5) Introduce Shared Memory Communications socket layer, from Ursula Braun. 6) Add RACK loss detection and allow it to actually trigger fast recovery instead of just assisting after other algorithms have triggered it. From Yuchung Cheng. 7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot. 8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert. 9) Export MPLS packet stats via netlink, from Robert Shearman. 10) Significantly improve inet port bind conflict handling, especially when an application is restarted and changes it's setting of reuseport. From Josef Bacik. 11) Implement TX batching in vhost_net, from Jason Wang. 12) Extend the dummy device so that VF (virtual function) features, such as configuration, can be more easily tested. From Phil Sutter. 13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric Dumazet. 14) Add new bpf MAP, implementing a longest prefix match trie. From Daniel Mack. 15) Packet sample offloading support in mlxsw driver, from Yotam Gigi. 16) Add new aquantia driver, from David VomLehn. 17) Add bpf tracepoints, from Daniel Borkmann. 18) Add support for port mirroring to b53 and bcm_sf2 drivers, from Florian Fainelli. 19) Remove custom busy polling in many drivers, it is done in the core networking since 4.5 times. From Eric Dumazet. 20) Support XDP adjust_head in virtio_net, from John Fastabend. 21) Fix several major holes in neighbour entry confirmation, from Julian Anastasov. 22) Add XDP support to bnxt_en driver, from Michael Chan. 23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan. 24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi. 25) Support GRO in IPSEC protocols, from Steffen Klassert" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits) Revert "ath10k: Search SMBIOS for OEM board file extension" net: socket: fix recvmmsg not returning error from sock_error bnxt_en: use eth_hw_addr_random() bpf: fix unlocking of jited image when module ronx not set arch: add ARCH_HAS_SET_MEMORY config net: napi_watchdog() can use napi_schedule_irqoff() tcp: Revert "tcp: tcp_probe: use spin_lock_bh()" net/hsr: use eth_hw_addr_random() net: mvpp2: enable building on 64-bit platforms net: mvpp2: switch to build_skb() in the RX path net: mvpp2: simplify MVPP2_PRS_RI_* definitions net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT net: mvpp2: remove unused register definitions net: mvpp2: simplify mvpp2_bm_bufs_add() net: mvpp2: drop useless fields in mvpp2_bm_pool and related code net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue' net: mvpp2: release reference to txq_cpu[] entry after unmapping net: mvpp2: handle too large value in mvpp2_rx_time_coal_set() net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set() net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set ...
2017-02-20Merge tag 'acpi-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds10-10/+32
Pull ACPI updates from Rafael Wysocki: "These update the ACPICA code in the kernel to upstream revision 20170119, which among other things updates copyright notices in all of the ACPICA files, fix a couple of issues in the ACPI EC and button drivers, fix modalias handling for non-discoverable devices with DT-compatible identification strings, add a suspend quirk for one platform and fix a message in the APEI code. Specifics: - Update of the ACPICA code in the kernel to upstream revision 20170119 including: + Fixes related to the handling of the bit width and bit offset fields in Generic Address Structure (Lv Zheng) + ACPI resources handling fix related to invalid resource descriptors (Bob Moore) + Fix to enable implicit result conversion for several ASL library functions (Bob Moore) + Support for method invocations as target operands in AML (Bob Moore) + Fix to use a correct operand type for DeRefOf() in some situations (Bob Moore) + Utilities updates (Bob Moore, Lv Zheng) + Disassembler/debugger updates (David Box, Lv Zheng) + Build fixes (Colin Ian King, Lv Zheng) + Update of copyright notices in all files (Bob Moore) - Fix for modalias handling for SPI and I2C devices with DT-compatible identification strings (Dan O'Donovan) - Fixes for the ACPI EC and button drivers (Lv Zheng) - ACPI processor handling fix related to CPU hotplug (online/offline) on x86 (Vitaly Kuznetsov) - Suspend quirk to save/restore NVS memory over S3 transitions for Lenovo G50-45 (Zhang Rui) - Message formatting fix for the ACPI APEI code (Colin Ian King)" * tag 'acpi-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits) ACPICA: Update version to 20170119 ACPICA: Tools: Update common signon, remove compilation bit width ACPICA: Source tree: Update copyright notices to 2017 ACPICA: Linuxize: Restore and fix Intel compiler build x86/ACPI: keep x86_cpu_to_acpiid mapping valid on CPU hotplug spi: acpi: Initialize modalias from of_compatible i2c: acpi: Initialize info.type from of_compatible ACPI / bus: Introduce acpi_of_modalias() equiv of of_modalias_node() ACPI: save NVS memory for Lenovo G50-45 ACPI, APEI, EINJ: fix malformed newline escape ACPI / button: Remove lid_init_state=method mode ACPI / button: Change default behavior to lid_init_state=open ACPI / EC: Use busy polling mode when GPE is not enabled ACPI / EC: Remove old CLEAR_ON_RESUME quirk ACPICA: Update version to 20161222 ACPICA: Parser: Update parse info table for some operators ACPICA: Fix a problem with recent extra support for control method invocations ACPICA: Parser: Allow method invocations as target operands ACPICA: Fix for implicit result conversion for the ToXXX functions ACPICA: Resources: Not a valid resource if buffer length too long ..
2017-02-20Merge tag 'pm-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds1-0/+569
Pull power management updates from Rafael Wysocki: "The majority of changes go into the Operating Performance Points (OPP) framework and cpufreq this time, followed by devfreq and some scattered updates all over. The OPP changes are mostly related to switching over from RCU-based synchronization, that turned out to be overly complicated and problematic, to reference counting using krefs. In the cpufreq land there are core cleanups, documentation updates, a new driver for Broadcom BMIPS SoCs, a new cpufreq-dt sub-driver for TI SoCs that require special handling, ARM64 SoCs support for the qoriq driver, intel_pstate updates, powernv driver update and assorted fixes. The devfreq changes are mostly fixes related to the sysfs interface and some Exynos drivers updates. Apart from that, the cpuidle menu governor will support per-CPU PM QoS constraints for the wakeup latency now, some bugs in the wakeup IRQs framework are fixed, the generic power domains framework should handle asynchronous invocations of *noirq suspend/resume callbacks from now on, the analyze_suspend.py script is updated and there is a new tool for intel_pstate diagnostics. Specifics: - Operating Performance Points (OPP) framework fixes, cleanups and switch over from RCU-based synchronization to reference counting using krefs (Viresh Kumar, Wei Yongjun, Dave Gerlach) - cpufreq core cleanups and documentation updates (Viresh Kumar, Rafael Wysocki) - New cpufreq driver for Broadcom BMIPS SoCs (Markus Mayer) - New cpufreq-dt sub-driver for TI SoCs requiring special handling, like in the AM335x, AM437x, DRA7x, and AM57x families, along with new DT bindings for it (Dave Gerlach, Paul Gortmaker) - ARM64 SoCs support for the qoriq cpufreq driver (Tang Yuantian) - intel_pstate driver updates including a new sysfs knob to control the driver's operation mode and fixes related to the no_turbo sysfs knob and the hardware-managed P-states feature support (Rafael Wysocki, Srinivas Pandruvada) - New interface to export ultra-turbo frequencies for the powernv cpufreq driver (Shilpasri Bhat) - Assorted fixes for cpufreq drivers (Arnd Bergmann, Dan Carpenter, Wei Yongjun) - devfreq core fixes, mostly related to the sysfs interface exported by it (Chanwoo Choi, Chris Diamand) - Updates of the exynos-bus and exynos-ppmu devfreq drivers (Chanwoo Choi) - Device PM QoS extension to support CPUs and support for per-CPU wakeup (device resume) latency constraints in the cpuidle menu governor (Alex Shi) - Wakeup IRQs framework fixes (Grygorii Strashko) - Generic power domains framework update including a fix to make it handle asynchronous invocations of *noirq suspend/resume callbacks correctly (Ulf Hansson, Geert Uytterhoeven) - Assorted fixes and cleanups in the core suspend/hibernate code, PM QoS framework and x86 ACPI idle support code (Corentin Labbe, Geert Uytterhoeven, Geliang Tang, John Keeping, Nick Desaulniers) - Update of the analyze_suspend.py script is updated to version 4.5 offering multiple improvements (Todd Brandt) - New tool for intel_pstate diagnostics using the pstate_sample tracepoint (Doug Smythies)" * tag 'pm-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (85 commits) MAINTAINERS: cpufreq: add bmips-cpufreq.c PM / QoS: Fix memory leak on resume_latency.notifiers PM / Documentation: Spelling s/wrtie/write/ PM / sleep: Fix test_suspend after sleep state rework cpufreq: CPPC: add ACPI_PROCESSOR dependency cpufreq: make ti-cpufreq explicitly non-modular cpufreq: Do not clear real_cpus mask on policy init tools/power/x86: Debug utility for intel_pstate driver AnalyzeSuspend: fix drag and zoom bug in javascript PM / wakeirq: report a wakeup_event on dedicated wekup irq PM / wakeirq: Fix spurious wake-up events for dedicated wakeirqs PM / wakeirq: Enable dedicated wakeirq for suspend cpufreq: dt: Don't use generic platdev driver for ti-cpufreq platforms cpufreq: ti: Add cpufreq driver to determine available OPPs at runtime Documentation: dt: add bindings for ti-cpufreq PM / OPP: Expose _of_get_opp_desc_node as dev_pm_opp API cpufreq: qoriq: Don't look at clock implementation details cpufreq: qoriq: add ARM64 SoCs support PM / Domains: Provide dummy governors if CONFIG_PM_GENERIC_DOMAINS=n cpufreq: brcmstb-avs-cpufreq: remove unnecessary platform_set_drvdata() ...
2017-02-20Merge tag 'leds_for_4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-ledsLinus Torvalds2-2/+86
Pull LED updates from Jacek Anaszewski: "New features and improvements: - add new optional brightness_hw_changed attribute for the LEDs that may have their brightness level changed autonomously (outside of kernel control) by hardware / firmware. The attribute supports userspace notifications through POLLPRI events - add led_brightness_hw_mon tool that demonstrates how to use the aforementioned feature - add LED_ON enum for LEDs that can be only turned on/off, and don't allow setting other brightness levels - allow for adjusting heartbeat trigger blink brightness level Fixes and cleanups: - avoid harmless maybe-uninitialized warning in leds-ktd2692.c - add context to the existing example entries in common LED bindings to make the documentation more clear" * tag 'leds_for_4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: ledtrig-heartbeat: Make top brightness adjustable tools/leds: Add led_hw_brightness_mon program leds: class: Add new optional brightness_hw_changed attribute leds: ktd2692: avoid harmless maybe-uninitialized warning leds: add LED_ON brightness as boolean value DT: leds: Improve examples by adding some context
2017-02-20Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-1/+1
Pull x86 mm updates from Ingo Molnar: "A laundry list of changes: KASAN improvements/fixes for ptdump, a self-test fix, PAT cleanup and wbinvd() avoidance, removal of stale code and documentation updates" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/ptdump: Add address marker for KASAN shadow region x86/mm/ptdump: Optimize check for W+X mappings for CONFIG_KASAN=y x86/mm/pat: Use rb_entry() x86/mpx: Re-add MPX to selftests Makefile x86/mm: Remove CONFIG_DEBUG_NX_TEST x86/mm/cpa: Avoid wbinvd() for PREEMPT x86/mm: Improve documentation for low-level device I/O functions
2017-02-20Merge branch 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-0/+1
Pull x86 cpufeature updates from Ingo Molnar: "The main changes in this cycle were related to enable ring-3 MONITOR/MWAIT instructions support on supported CPUs, by Grzegorz Andrejczuk and Piotr Luc" * 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpufeature: Move RING3MWAIT feature to avoid conflicts x86/cpufeature: Enable RING3MWAIT for Knights Mill x86/cpufeature: Enable RING3MWAIT for Knights Landing x86/cpufeature: Add RING3MWAIT to CPU features x86/elf: Add HWCAP2 to expose ring 3 MONITOR/MWAIT x86/msr: Add MSR_MISC_FEATURE_ENABLES and RING3MWAIT bit x86/cpufeature: Add AVX512_VPOPCNTDQ feature
2017-02-20Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds2-1/+196
Pull x86 asm update from Ingo Molnar: "This adds a new SYSRET testcase" * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/x86: Add a selftest for SYSRET to noncanonical addresses
2017-02-20Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds4-0/+18
Pull locking updates from Ingo Molnar: "The main changes in this cycle were: - Implement wraparound-safe refcount_t and kref_t types based on generic atomic primitives (Peter Zijlstra) - Improve and fix the ww_mutex code (Nicolai Hähnle) - Add self-tests to the ww_mutex code (Chris Wilson) - Optimize percpu-rwsems with the 'rcuwait' mechanism (Davidlohr Bueso) - Micro-optimize the current-task logic all around the core kernel (Davidlohr Bueso) - Tidy up after recent optimizations: remove stale code and APIs, clean up the code (Waiman Long) - ... plus misc fixes, updates and cleanups" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits) fork: Fix task_struct alignment locking/spinlock/debug: Remove spinlock lockup detection code lockdep: Fix incorrect condition to print bug msgs for MAX_LOCKDEP_CHAIN_HLOCKS lkdtm: Convert to refcount_t testing kref: Implement 'struct kref' using refcount_t refcount_t: Introduce a special purpose refcount type sched/wake_q: Clarify queue reinit comment sched/wait, rcuwait: Fix typo in comment locking/mutex: Fix lockdep_assert_held() fail locking/rtmutex: Flip unlikely() branch to likely() in __rt_mutex_slowlock() locking/rwsem: Reinit wake_q after use locking/rwsem: Remove unnecessary atomic_long_t casts jump_labels: Move header guard #endif down where it belongs locking/atomic, kref: Implement kref_put_lock() locking/ww_mutex: Turn off __must_check for now locking/atomic, kref: Avoid more abuse locking/atomic, kref: Use kref_get_unless_zero() more locking/atomic, kref: Kill kref_sub() locking/atomic, kref: Add kref_read() locking/atomic, kref: Add KREF_INIT() ...
2017-02-20Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds137-465/+4952
Pull perf updates from Ingo Molnar: "On the kernel side the main changes in this cycle were: - Add Intel Kaby Lake CPU support (Srinivas Pandruvada) - AMD uncore driver updates for fam17 (Janakarajan Natarajan) - Intel/PT updates and core events optimizations and cleanups (Alexander Shishkin) - cgroups events fixes (David Carrillo-Cisneros) - kprobes improvements (Masami Hiramatsu) - ... plus misc fixes and updates. On the tooling side the main changes were: - Support clang build in tools/{perf,lib/{bpf,traceevent,api}} with CC=clang, to, for instance, take advantage of better warnings (Arnaldo Carvalho de Melo): - Introduce the 'delta-abs' 'perf diff' compute method, that orders the histogram entries by the absolute value of the percentage delta for a function in two perf.data files, i.e. the functions that changed the most (increase or decrease in samples) comes first (Namhyung Kim) - Add support for parsing Intel uncore vendor event files and add uncore vendor events for the Intel server processors (Haswell, Broadwell, IvyBridge), Xeon Phi (Knights Landing) and Broadwell DE (Andi Kleen) - Introduce 'perf ftrace' a perf front end to the kernel's ftrace function and function_graph tracer, defaulting to the "function_graph" tracer, more work will be done in reviving this effort, forward porting it from its initial patch submission (Namhyung Kim) - Add 'e' and 'c' hotkeys to expand/collapse call chains for a single hist entry in the 'perf report' and 'perf top' TUI (Jiri Olsa) - Account thread wait time (off CPU time) separately: sleep, iowait and preempt, based on the prev_state of the last event, show the breakdown when using "perf sched timehist --state" (Namhyumg Kim) - Add more triggers to switch the output file (perf.data.TIMESTAMP). Now, in addition to switching to a different output file when receiving a SIGUSR2, one can also specify file size and time based triggers: perf record -a --switch-output=signal is equivalent to what we had before: perf record -a --switch-output While we can also ask for the file to be "sliced" by size, taking into account that that will happen only when we get woken up by the kernel, i.e. one has to take into account the --mmap-pages (the size of the perf mmap ring buffer): perf record -a --switch-output=2G will break the perf.data output into multiple files limited to 2GB of samples, right when generating the output. For time based samples, alert() will be used, so to have 1 minute limited perf.data output files: perf record -a --switch-output=1m (Jiri Olsa) - Improve 'perf trace' (Arnaldo Carvalho de Melo) - 'perf kallsyms' toy tool to look for extended symbol information on the running kernel and demonstrate the machine/thread/symbol APIs for use in other tools, such as 'perf probe' (Arnaldo Carvalho de Melo) - ... plus tons of other changes, see the shortlog and Git log for details" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (131 commits) perf tools: Add missing parse_events_error() prototype perf pmu: Fix check for unset alias->unit array perf tools: Be consistent on the type of map->symbols[] interator perf intel pt decoder: clang has no -Wno-override-init perf evsel: Do not put a variable sized type not at the end of a struct perf probe: Avoid accessing uninitialized 'map' variable perf tools: Do not put a variable sized type not at the end of a struct perf record: Do not put a variable sized type not at the end of a struct perf tests: Synthesize struct instead of using field after variable sized type perf bench numa: Make sure dprintf() is not defined Revert "perf bench futex: Sanitize numeric parameters" tools lib subcmd: Make it an error to pass a signed value to OPTION_UINTEGER tools: Set the maximum optimization level according to the compiler being used tools: Suppress request for warning options not existent in clang samples/bpf: Reset global variables samples/bpf: Ignore already processed ELF sections samples/bpf: Add missing header perf symbols: dso->name is an array, no need to check it against NULL perf tests record: No need to test an array against NULL perf symbols: No need to check if sym->name is NULL ...
2017-02-20Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds52-8/+1641
Pull RCU updates from Ingo Molnar: "The RCU changes in this cycle are: - Dynticks updates, consolidating open-coded counter accesses into a well-defined API - SRCU updates: Simplify algorithm, add formal verification - Documentation updates - Miscellaneous fixes - Torture-test updates Most of the diffstat comes from the relatively large documentation update" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits) srcu: Reduce probability of SRCU ->unlock_count[] counter overflow rcutorture: Add CBMC-based formal verification for SRCU srcu: Force full grace-period ordering srcu: Implement more-efficient reader counts rcu: Adjust FQS offline checks for exact online-CPU detection rcu: Check cond_resched_rcu_qs() state less often to reduce GP overhead rcu: Abstract extended quiescent state determination rcu: Abstract dynticks extended quiescent state enter/exit operations rcu: Add lockdep checks to synchronous expedited primitives rcu: Eliminate unused expedited_normal counter llist: Clarify comments about when locking is needed rcu: Fix comment in rcu_organize_nocb_kthreads() rcu: Enable RCU tracepoints by default to aid in debugging rcu: Make rcu_cpu_starting() use its "cpu" argument rcu: Add comment headers to expedited-grace-period counter functions rcu: Don't wake rcuc/X kthreads on NOCB CPUs rcu: Re-enable TASKS_RCU for User Mode Linux rcu: Once again use NMI-based stack traces in stall warnings rcu: Remove short-term CPU kicking rcu: Add long-term CPU kicking ...
2017-02-20Merge branch 'acpica'Rafael J. Wysocki10-10/+32
* acpica: (22 commits) ACPICA: Update version to 20170119 ACPICA: Tools: Update common signon, remove compilation bit width ACPICA: Source tree: Update copyright notices to 2017 ACPICA: Linuxize: Restore and fix Intel compiler build ACPICA: Update version to 20161222 ACPICA: Parser: Update parse info table for some operators ACPICA: Fix a problem with recent extra support for control method invocations ACPICA: Parser: Allow method invocations as target operands ACPICA: Fix for implicit result conversion for the ToXXX functions ACPICA: Resources: Not a valid resource if buffer length too long ACPICA: Utilities: Update debug output ACPICA: Disassembler: Add Switch/Case disassembly support ACPICA: EFI: Add efihello demo application ACPICA: MSVC: Fix MSVC6 build issues ACPICA: Linux-specific header: Add support for s390x compilation ACPICA: Hardware: Add sleep register hooks ACPICA: Macro header: Fix some typos in comments ACPICA: Hardware: Sort access bit width algorithm ACPICA: Utilities: Add power of two rounding support ACPICA: Hardware: Add access_width/bit_offset support in acpi_hw_write() ...
2017-02-20Merge branch 'pm-tools'Rafael J. Wysocki1-0/+569
* pm-tools: tools/power/x86: Debug utility for intel_pstate driver AnalyzeSuspend: fix drag and zoom bug in javascript scripts: analyze_suspend.py: Update to upstream v4.5 scripts: analyze_suspend.py: Update to upstream v4.4 scripts: analyze_suspend.py: Update to upstream v4.3
2017-02-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller9-5/+52
2017-02-16Merge branch 'linus' into x86/mmThomas Gleixner7-4/+41
Make sure to get the latest fixes before applying the ptdump enhancements.
2017-02-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds3-2/+12
Pull networking fixes from David Miller: 1) In order to avoid problems in the future, make cgroup bpf overriding explicit using BPF_F_ALLOW_OVERRIDE. From Alexei Staovoitov. 2) LLC sets skb->sk without proper skb->destructor and this explodes, fix from Eric Dumazet. 3) Make sure when we have an ipv4 mapped source address, the destination is either also an ipv4 mapped address or ipv6_addr_any(). Fix from Jonathan T. Leighton. 4) Avoid packet loss in fec driver by programming the multicast filter more intelligently. From Rui Sousa. 5) Handle multiple threads invoking fanout_add(), fix from Eric Dumazet. 6) Since we can invoke the TCP input path in process context, without BH being disabled, we have to accomodate that in the locking of the TCP probe. Also from Eric Dumazet. 7) Fix erroneous emission of NETEVENT_DELAY_PROBE_TIME_UPDATE when we aren't even updating that sysctl value. From Marcus Huewe. 8) Fix endian bugs in ibmvnic driver, from Thomas Falcon. [ This is the second version of the pull that reverts the nested rhashtable changes that looked a bit too scary for this late in the release - Linus ] * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits) rhashtable: Revert nested table changes. ibmvnic: Fix endian errors in error reporting output ibmvnic: Fix endian error when requesting device capabilities net: neigh: Fix netevent NETEVENT_DELAY_PROBE_TIME_UPDATE notification net: xilinx_emaclite: fix freezes due to unordered I/O net: xilinx_emaclite: fix receive buffer overflow bpf: kernel header files need to be copied into the tools directory tcp: tcp_probe: use spin_lock_bh() uapi: fix linux/if_pppol2tp.h userspace compilation errors packet: fix races in fanout_add() ibmvnic: Fix initial MTU settings net: ethernet: ti: cpsw: fix cpsw assignment in resume kcm: fix a null pointer dereference in kcm_sendmsg() net: fec: fix multicast filtering hardware setup ipv6: Handle IPv4-mapped src to in6addr_any dst. ipv6: Inhibit IPv4-mapped src address on the wire. net/mlx5e: Disable preemption when doing TC statistics upcall rhashtable: Add nested tables tipc: Fix tipc_sk_reinit race conditions gfs2: Use rhashtable walk interface in glock_hash_walk ...
2017-02-16tools/power/x86: Debug utility for intel_pstate driverDoug Smythies1-0/+569
This utility can be used to debug and tune the performance of the intel_pstate driver. This utility can be used in two ways: - If there is Linux trace file with pstate_sample events enabled, then this utility can parse the trace file and generate performance plots. - If user has not specified a trace file as input via command line parameters, then this utility enables and collects trace data for a user-specified interval and generates performance plots. Signed-off-by: Doug Smythies <dsmythies@telus.net> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-15bpf: Rebuild bpf.o for any dependency updateMickaël Salaün1-2/+13
This is needed to force a rebuild of bpf.o when one of its dependencies (e.g. uapi/linux/bpf.h) is updated. Add a phony target. Signed-off-by: Mickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David S. Miller <davem@davemloft.net> Cc: Wang Nan <wangnan0@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-15bpf: Remove redundant ifdefMickaël Salaün1-9/+3
Remove a useless ifdef __NR_bpf as requested by Wang Nan. Inline one-line static functions as it was in the bpf_sys.h file. Signed-off-by: Mickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@fb.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David S. Miller <davem@davemloft.net> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/r/828ab1ff-4dcf-53ff-c97b-074adb895006@huawei.com Acked-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-15perf tools: Add missing parse_events_error() prototypeArnaldo Carvalho de Melo1-0/+2
As pointed out by clang, we were not providing a prototype for a function before using it: util/parse-events.y:699:6: error: conflicting types for 'parse_events_error' void parse_events_error(YYLTYPE *loc, void *data, ^ /tmp/build/perf/util/parse-events-bison.c:2224:7: note: previous implicit declaration is here yyerror (&yylloc, _data, scanner, YY_("syntax error")); ^ /tmp/build/perf/util/parse-events-bison.c:65:25: note: expanded from macro 'yyerror' #define yyerror parse_events_error 1 error generated. One line fix it. Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20170215130605.GC4020@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-15perf pmu: Fix check for unset alias->unit arrayArnaldo Carvalho de Melo1-2/+2
The alias->unit field is an array, so to check that it is not set we should see if it is an empty string, i.e. alias->unit[0], instead of checking alias->unit != NULL, as this will _always_ evaluate to 'true'. Pointed out by clang. Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/20170214182435.GD4458@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14bpf: kernel header files need to be copied into the tools directoryStephen Rothwell1-0/+7
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-14tools/leds: Add led_hw_brightness_mon programJacek Anaszewski2-2/+86
LED subsystem supports POLLPRI on "brightness_hw_changed" sysfs file of LED class devices. This tool demonstrates how to use the feature. Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Pavel Machek <pavel@ucw.cz>
2017-02-14perf tools: Be consistent on the type of map->symbols[] interatorArnaldo Carvalho de Melo2-3/+3
In a few cases we were using 'enum map_type' and that triggered this warning when using clang: util/session.c:1923:16: error: comparison of constant 2 with expression of type 'enum map_type' is always true [-Werror,-Wtautological-constant-out-of-range-compare] for (i = 0; i < MAP__NR_TYPES; ++i) { 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-i6uyo6bsopa2dghnx8qo7rri@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14perf intel pt decoder: clang has no -Wno-override-initArnaldo Carvalho de Melo1-1/+5
So set it only for other compilers, allowing us to overcome yet another build failure due to an inexistent clang -W option: error: unknown warning option '-Wno-override-init'; did you mean '-Wno-override-module'? [-Werror,-Wunknown-warning-option] 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-oaa1ici3j8nygp4pzl2oobh3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14perf evsel: Do not put a variable sized type not at the end of a structArnaldo Carvalho de Melo1-34/+28
As this is a GNU extension and while harmless in this case, we can do the same thing in a more clearer way by using a existing thread_map and cpu_map constructors: With this we avoid this while compiling with clang: util/evsel.c:1659:17: error: field 'map' with variable sized type 'struct cpu_map' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end] struct cpu_map map; ^ util/evsel.c:1667:20: error: field 'map' with variable sized type 'struct thread_map' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end] struct thread_map map; ^ 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-207juvrqjiar7uvas2s83v5i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14perf probe: Avoid accessing uninitialized 'map' variableArnaldo Carvalho de Melo1-1/+1
Genuine problem detected with clang, the warnings are spot on: util/probe-event.c:2079:7: error: variable 'map' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized] if (addr) { ^~~~ util/probe-event.c:2094:6: note: uninitialized use occurs here if (map && !is_kprobe) { ^~~ util/probe-event.c:2079:3: note: remove the 'if' if its condition is always true if (addr) { ^~~~~~~~~~ util/probe-event.c:2075:8: error: variable 'map' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized] if (kernel_get_symbol_address_by_name(tp->symbol, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ util/probe-event.c:2094:6: note: uninitialized use occurs here if (map && !is_kprobe) { ^~~ util/probe-event.c:2075:4: note: remove the 'if' if its condition is always false if (kernel_get_symbol_address_by_name(tp->symbol, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ util/probe-event.c:2064:17: note: initialize the variable 'map' to silence this warning struct map *map; ^ = NULL Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-m3501el55i10hctfbmi2qxzr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14perf tools: Do not put a variable sized type not at the end of a structArnaldo Carvalho de Melo1-9/+6
As this is a GNU extension and while harmless in this case, we can do the same thing in a more clearer way by using an existing thread_map constructor. With this we avoid this while compiling with clang: util/parse-events.c:2024:21: error: field 'map' with variable sized type 'struct thread_map' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end] struct thread_map map; ^ 1 error generated. 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-tqocbplnyyhpst6drgm2u4m3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14perf record: Do not put a variable sized type not at the end of a structArnaldo Carvalho de Melo1-8/+9
As this is a GNU extension and while harmless in this case, we can do the same thing in a more clearer way by using an existing thread_map constructor. With this we avoid this while compiling with clang: builtin-record.c:659:21: error: field 'map' with variable sized type 'struct thread_map' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end] struct thread_map map; ^ 1 error generated. 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-c9drclo52ezxmwa7qxklin2y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14perf tests: Synthesize struct instead of using field after variable sized typeArnaldo Carvalho de Melo1-11/+8
End result is the same, its an ABI, so the struct won't change, avoid using a GNU extension, so that we can catch other cases that may be bugs. Caught when building with clang: tests/parse-no-sample-id-all.c:53:20: error: field 'attr' with variable sized type 'struct attr_event' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end] struct attr_event attr; ^ 1 error generated. Testing it: # perf test sample_id 24: Parse with no sample_id_all bit set : Ok # 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-e2vs1x771fc208uvxnwcf08b@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14perf bench numa: Make sure dprintf() is not definedArnaldo Carvalho de Melo1-0/+1
When building with clang we get this error: bench/numa.c:46:9: error: 'dprintf' macro redefined [-Werror,-Wmacro-redefined] #define dprintf(x...) do { if (g && g->p.show_details >= 1) printf(x); } while (0) ^ /usr/include/bits/stdio2.h:145:12: note: previous definition is here # define dprintf(fd, ...) \ ^ CC /tmp/build/perf/tests/parse-no-sample-id-all.o 1 error generated. So, make sure it is undefined before using that name. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Jakub Jelen <jjelen@redhat.com> 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-f654o2svtrutamvxt7igwz74@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14Revert "perf bench futex: Sanitize numeric parameters"Arnaldo Carvalho de Melo6-20/+0
This reverts commit 60758d6668b3e2fa8e5fd143d24d0425203d007e. Now that libsubcmd makes sure that OPT_UINTEGER options will not return negative values, we can revert this patch while addressing the problem it solved: # perf bench futex hash -t -4 # Running 'futex/hash' benchmark: Error: switch `t' expects an unsigned numerical value Usage: perf bench futex hash <options> -t, --threads <n> Specify amount of threads # perf bench futex hash -t-4 # Running 'futex/hash' benchmark: Error: switch `t' expects an unsigned numerical value Usage: perf bench futex hash <options> -t, --threads <n> Specify amount of threads # IMO it is more reasonable to flat out refuse to process a negative number than to silently turn it into an absolute value. This also helps in silencing clang's complaint about asking for an absolute value of an unsigned integer: bench/futex-hash.c:133:10: error: taking the absolute value of unsigned type 'unsigned int' has no effect [-Werror,-Wabsolute-value] nsecs = futexbench_sanitize_numeric(nsecs); ^ bench/futex.h:104:42: note: expanded from macro 'futexbench_sanitize_numeric' #define futexbench_sanitize_numeric(__n) abs((__n)) ^ bench/futex-hash.c:133:10: note: remove the call to 'abs' since unsigned values cannot be negative Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-2kl68v22or31vw643m2exz8x@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14tools lib subcmd: Make it an error to pass a signed value to OPTION_UINTEGERArnaldo Carvalho de Melo1-0/+4
Options marked OPTION_UINTEGER or OPTION_U64 clearly indicates that an unsigned value is expected, so just error out when a negative value is passed, instead of returning something undesired to the tool. E.g.: # perf bench futex hash -t -4 # Running 'futex/hash' benchmark: Error: switch `t' expects an unsigned numerical value Usage: perf bench futex hash <options> -t, --threads <n> Specify amount of threads # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-2mdn8s2raatyhz7tamrsz22r@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14tools: Set the maximum optimization level according to the compiler being usedArnaldo Carvalho de Melo3-2/+18
To avoid this when using clang: warning: optimization level '-O6' is not supported; using '-O3' instead 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-kaghp8ddvzdsg03putemcq96@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-14tools: Suppress request for warning options not existent in clangArnaldo Carvalho de Melo1-1/+4
To allow building with clang, avoiding: error: unknown warning option '-Wstrict-aliasing=3'; did you mean '-Wstring-plus-int'? [-Werror,-Wunknown-warning-option] 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-xvthlvmhzfnt7jx73jgmaea1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13perf symbols: dso->name is an array, no need to check it against NULLArnaldo Carvalho de Melo2-4/+4
As it will always evaluate to 'true', as reported by clang: util/map.c:390:36: error: address of array 'map->dso->name' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion] if (map && map->dso && (map->dso->name || map->dso->long_name)) { ~~~~~~~~~~^~~~ ~~ util/map.c:393:22: error: address of array 'map->dso->name' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion] else if (map->dso->name) ~~ ~~~~~~~~~~^~~~ 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-x8cu007cly40kfp8xnpi9kya@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13perf tests record: No need to test an array against NULLArnaldo Carvalho de Melo1-1/+1
It will always evaluate to 'true', as clang warns: CC /tmp/build/perf/tests/perf-record.o CC /tmp/build/perf/tests/evsel-roundtrip-name.o tests/perf-record.c:69:24: error: comparison of array 'argv' equal to a null pointer is always false [-Werror,-Wtautological-pointer-compare] if (evlist == NULL || argv == NULL) { ^~~~ ~~~~ 1 error generated. 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-o4977g6p9b3peak9ct6ef48q@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13perf symbols: No need to check if sym->name is NULLArnaldo Carvalho de Melo5-6/+5
As it is an array, so will always evaluate to 'true', as reported by clang: builtin-sched.c:2070:19: error: address of array 'sym->name' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion] if (sym && sym->name) { ~~ ~~~~~^~~~ 1 warning generated. So just ditch all those useless checks. 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-ydpm927col06paixb775jjx5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-02-13perf evsel: Inform how to make a sysctl setting permanentArnaldo Carvalho de Melo4-4/+6
When a tool can't open counters due to the kernel.perf_event_paranoit sysctl setting, we inform how to tweak it to allow the operation to succeed, in addition to that, suggest setting /etc/sysctl.conf to make the setting permanent. Suggested-by: Ingo Molnar <mingo@kernel.org> 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-4gwe99k4a6p12d4u8bbyttj2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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