132 Commits

Author	SHA1	Message	Date
lucaswei	abddbf054a	Merge upstream-linux-4.4.y (4.4.210) into android-msm-wahoo-4.4-qt-lts ... Linux 4.4.210 drm/i915/gen9: Clear residual context state on context switch netfilter: ipset: avoid null deref when IPSET_ATTR_LINENO is present * netfilter: arp_tables: init netns pointer in xt_tgchk_param struct net/ipv4/netfilter/arp_tables.c * USB: Fix: Don't skip endpoint descriptors with maxpacket=0 drivers/usb/core/config.c rtl8xxxu: prevent leaking urb scsi: bfa: release allocated memory in case of error mwifiex: pcie: Fix memory leak in mwifiex_pcie_alloc_cmdrsp_buf mwifiex: fix possible heap overflow in mwifiex_process_country_ie() * tty: always relink the port drivers/tty/tty_port.c * tty: link tty and port before configuring it as console drivers/tty/serial/serial_core.c drivers/tty/tty_port.c staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21 usb: musb: dma: Correct parameter passed to IRQ handler usb: musb: Disable pullup at init USB: serial: option: add ZLP support for 0x1bc7/0x9010 staging: vt6656: set usb_set_intfdata on driver fail. can: can_dropped_invalid_skb(): ensure an initialized headroom in outgoing CAN sk_buffs can: mscan: mscan_rx_poll(): fix rx path lockup when returning from polling to irq mode can: gs_usb: gs_usb_probe(): use descriptors of current altsetting drm/dp_mst: correct the shifting in DP_REMOTE_I2C_READ * Input: add safety guards to input_set_keycode() drivers/input/input.c * HID: hid-input: clear unmapped usages drivers/hid/hid-input.c * HID: uhid: Fix returning EPOLLOUT from uhid_char_poll drivers/hid/uhid.c * HID: Fix slab-out-of-bounds read in hid_field_extract drivers/hid/hid-core.c tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail * ALSA: usb-audio: Apply the sample rate quirk for Bose Companion 5 sound/usb/quirks.c usb: chipidea: host: Disable port power only if previously enabled * chardev: Avoid potential use-after-free in 'chrdev_open()' fs/char_dev.c * kobject: Export kobject_get_unless_zero() include/linux/kobject.h lib/kobject.c Linux 4.4.209 USB: serial: option: add Telit ME910G1 0x110a composition * USB: core: fix check for duplicate endpoints drivers/usb/core/config.c * macvlan: do not assume mac_header is set in macvlan_broadcast() include/linux/if_ether.h vxlan: fix tos value before xmit vlan: fix memory leak in vlan_dev_set_egress_priority vlan: vlan_changelink() should propagate errors * tcp: fix "old stuff" D-SACK causing SACK to be treated as D-SACK net/ipv4/tcp_input.c sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM net: usb: lan78xx: fix possible skb leak net: stmmac: dwmac-sunxi: Allow all RGMII modes llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c) parisc: Fix compiler warnings in debug_core.c * kconfig: don't crash on NULL expressions in expr_eq() scripts/kconfig/expr.c regulator: rn5t618: fix module aliases ASoC: wm8962: fix lambda value * rfkill: Fix incorrect check to avoid NULL pointer dereference net/rfkill/core.c net: usb: lan78xx: Fix error message format specifier bnx2x: Fix logic to get total no. of PFs per engine bnx2x: Do not handle requests from VFs after parity powerpc: Ensure that swiotlb buffer is allocated from low memory ARM: dts: am437x-gp/epos-evm: fix panel compatible netfilter: uapi: Avoid undefined left-shift in xt_sctp.h ARM: vexpress: Set-up shared OPP table instead of individual for each CPU * netfilter: ctnetlink: netns exit must wait for callbacks net/netfilter/nf_conntrack_netlink.c locking/spinlock/debug: Fix various data races * pstore/ram: Write new dumps to start of recycled zones fs/pstore/ram.c locking/x86: Remove the unused atomic_inc_short() methd s390/smp: fix physical to logical CPU map for SMT * net: add annotations on hh->hh_len lockless accesses include/net/neighbour.h net/core/neighbour.c net/ethernet/eth.c ath9k_htc: Discard undersized packets ath9k_htc: Modify byte order for an error message powerpc/pseries/hvconsole: Fix stack overread via udbg drm/mst: Fix MST sideband up-reply failure handling * tty: serial: msm_serial: Fix lockup for sysrq and oops drivers/tty/serial/msm_serial.c * Bluetooth: delete a stray unlock net/bluetooth/l2cap_core.c Bluetooth: btusb: fix PM leak in error case of setup ftrace: Avoid potential division by zero in function profiler ALSA: cs4236: fix error return comparison of an unsigned integer * gpiolib: fix up emulated open drain outputs drivers/gpio/gpiolib.c * compat_ioctl: block: handle Persistent Reservations block/compat_ioctl.c * dmaengine: Fix access to uninitialized dma_slave_caps include/linux/dmaengine.h * locks: print unsigned ino in /proc/locks fs/locks.c MIPS: Avoid VDSO ABI breakage due to global register variable ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code Revert "perf report: Add warning when libunwind not compiled in" * taskstats: fix data-race kernel/taskstats.c xfs: fix mount failure crash on invalid iclog memory access xen/balloon: fix ballooned page accounting without hotplug enabled s390/cpum_sf: Avoid SBD overflow condition in irq handler s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits md: raid1: check rdev before reference in raid1_sync_request func usb: gadget: fix wrong endpoint desc scsi: libsas: stop discovering if oob mode is disconnected scsi: iscsi: qla4xxx: fix double free in probe scsi: qla2xxx: Don't call qlt_async_event twice scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func RDMA/cma: add missed unregister_pernet_subsys in init failure * PM / devfreq: Don't fail devfreq_dev_release if not in list drivers/devfreq/devfreq.c Linux 4.4.208 * tcp: do not send empty skb from tcp_write_xmit() net/ipv4/tcp_output.c mmc: sdhci: Update the tuning failed messages to pr_debug level * hrtimer: Annotate lockless access to timer->state include/linux/hrtimer.h kernel/time/hrtimer.c * net: icmp: fix data-race in cmp_global_allow() net/ipv4/icmp.c netfilter: bridge: make sure to pull arp header in br_nf_forward_arp() 6pack,mkiss: fix possible deadlock * netfilter: ebtables: compat: reject all padding in matches/watchers net/bridge/netfilter/ebtables.c net: davinci_cpdma: use dma_addr_t for DMA address * filldir[64]: remove WARN_ON_ONCE() for bad directory entries fs/readdir.c * Make filldir[64]() verify the directory entry filename is valid fs/readdir.c ALSA: hda - Downgrade error message for single-cmd fallback * kernel: sysctl: make drop_caches write-only kernel/sysctl.c ocfs2: fix passing zero to 'PTR_ERR' warning s390/cpum_sf: Check for SDBT and SDB consistency * libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h include/linux/libfdt_env.h perf regs: Make perf_reg_name() return "unknown" instead of NULL cdrom: respect device capabilities during opening action * scripts/kallsyms: fix definitely-lost memory leak scripts/kallsyms.c gpio: mpc8xxx: Don't overwrite default irq_set_type callback scsi: target: iscsi: Wait for all commands to finish before freeing a session scsi: pm80xx: Fix for SATA device discovery * ext4: work around deleting a file with i_nlink == 0 safely fs/ext4/namei.c * HID: Improve Windows Precision Touchpad detection. drivers/hid/hid-core.c bcache: at least try to shrink 1 node in bch_mca_scan() clk: pxa: fix one of the pxa RTC clocks powerpc/security: Fix wrong message when RFI Flush is disable powerpc/pseries/cmm: Implement release() function for sysfs device * scsi: ufs: fix potential bug which ends in system hang drivers/scsi/ufs/ufshcd.c scsi: lpfc: fix: Coverity: lpfc_cmpl_els_rsp(): Null pointer dereferences * fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long fs/quota/dquot.c include/linux/quota.h irqchip: ingenic: Error out if IRQ domain creation failed irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary clk: qcom: Allow constant ratio freq tables for rcg scsi: lpfc: Fix duplicate unreg_rpi error in port offline flow * scsi: tracing: Fix handling of TRANSFER LENGTH == 0 for READ(6) and WRITE(6) drivers/scsi/scsi_trace.c * jbd2: Fix statistics for the number of logged blocks fs/jbd2/commit.c powerpc/security/book3s64: Report L1TF status in sysfs clocksource/drivers/asm9260: Add a check for of_clk_get dma-debug: add a schedule point in debug_dma_dump_mappings() powerpc/pseries: Mark accumulate_stolen_time() as notrace scsi: csiostor: Don't enable IRQs too early scsi: lpfc: Fix SLI3 hba in loop mode not discovering devices scsi: target: compare full CHAP_A Algorithm strings iommu/tegra-smmu: Fix page tables in > 4 GiB memory Input: atmel_mxt_ts - disable IRQ across suspend scsi: lpfc: Fix locking on mailbox command completion scsi: mpt3sas: Fix clear pending bit in ioctl status perf probe: Fix to show function entry line as probe-able mmc: sdhci-of-esdhc: fix P2020 errata handling powerpc/irq: fix stack overflow verification * ext4: check for directory entries too close to block end fs/ext4/dir.c staging: comedi: gsc_hpdi: check dma_alloc_coherent() return value platform/x86: hp-wmi: Make buffer for HPWMI_FEATURE2_QUERY 128 bytes USB: EHCI: Do not return -EPIPE when hub is disconnected usbip: Fix error path of vhci_recv_ret_submit() * net: dst: Force 4-byte alignment of dst_metrics include/net/dst.h sctp: fully initialize v4 addr in some functions net: usb: lan78xx: Fix suspend/resume PHY register access error net: qlogic: Fix error paths in ql_alloc_large_buffers() net: nfc: nci: fix a possible sleep-in-atomic-context bug in nci_uart_tty_receive() net: hisilicon: Fix a BUG trigered by wrong bytes_compl * mod_devicetable: fix PHY module format include/linux/mod_devicetable.h fjes: fix missed check in fjes_acpi_add * af_packet: set defaule value for tmo net/packet/af_packet.c * ALSA: pcm: Avoid possible info leaks from PCM stream buffers sound/core/pcm_native.c Btrfs: fix removal logic of the tree mod log that leads to use-after-free issues btrfs: abort transaction after failed inode updates in create_subvol btrfs: return error pointer from alloc_test_extent_buffer btrfs: do not call synchronize_srcu() in inode_tree_del * usb: xhci: Fix build warning seen with CONFIG_PM=n drivers/usb/host/xhci-pci.c Revert "mmc: sdhci: Fix incorrect switch to HS mode" * net: phy: initialise phydev speed and duplex sanely drivers/net/phy/phy_device.c libtraceevent: Fix memory leakage in copy_filter_type crypto: vmx - Avoid weird build failures crypto: sun4i-ss - Fix 64-bit size_t warnings on sun4i-ss-hash.c fbtft: Make sure string is NULL terminated iwlwifi: check kasprintf() return value btrfs: don't prematurely free work in end_workqueue_fn() spi: tegra20-slink: add missed clk_unprepare x86/crash: Add a forward declaration of struct kimage * cpufreq: Register drivers only after CPU devices have been registered drivers/cpufreq/cpufreq.c parport: load lowlevel driver if ports not found ASoC: rt5677: Mark reg RT5677_PWR_ANLG2 as volatile spi: pxa2xx: Add missed security checks EDAC/ghes: Fix grain calculation media: si470x-i2c: add missed operations in remove media: pvrusb2: Fix oops on tear-down when radio support is not present ath10k: fix get invalid tx rate for Mesh metric perf probe: Filter out instances except for inlined subroutine and subprogram perf probe: Skip end-of-sequence and non statement lines perf probe: Fix to show calling lines of inlined functions perf probe: Return a better scope DIE if there is no best scope perf probe: Skip overlapped location on searching variables perf probe: Fix to show inlined function callsite without entry_pc perf probe: Fix to show ranges of variables in functions without entry_pc perf probe: Fix to probe an inline function which has no entry pc perf probe: Walk function lines in lexical blocks perf probe: Fix to list probe event with correct line number perf probe: Fix to find range-only function instance rtlwifi: fix memory leak in rtl92c_set_fw_rsvdpagepkt() spi: img-spfi: fix potential double release bnx2x: Fix PF-VF communication over multi-cos queues. pinctrl: sh-pfc: sh7734: Fix duplicate TCLK1_B libata: Ensure ata_port probe has completed before detach * arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill() arch/arm64/kernel/psci.c x86/ioapic: Prevent inconsistent state when moving an interrupt drm/gma500: fix memory disclosures due to uninitialized bytes * Bluetooth: hci_core: fix init for HCI_USER_CHANNEL net/bluetooth/hci_core.c iio: adc: max1027: Reset the device at probe time perf report: Add warning when libunwind not compiled in x86/mm: Use the correct function type for native_set_fixmap() extcon: sm5502: Reset registers during initialization media: ti-vpe: vpe: Make sure YUYV is set as default format media: ti-vpe: vpe: fix a v4l2-compliance failure about frame sequence number media: ti-vpe: vpe: fix a v4l2-compliance warning about invalid pixel format mwifiex: pcie: Fix memory leak in mwifiex_pcie_init_evt_ring samples: pktgen: fix proc_cmd command result check logic media: flexcop-usb: fix NULL-ptr deref in flexcop_usb_transfer_init() regulator: max8907: Fix the usage of uninitialized variable in max8907_regulator_probe() hwrng: omap3-rom - Call clk_disable_unprepare() on exit only if not idled usb: renesas_usbhs: add suspend event support in gadget mode tools/power/cpupower: Fix initializer override in hsw_ext_cstates media: ov6650: Fix stored frame format not in sync with hardware media: i2c: ov2659: Fix missing 720p register config media: i2c: ov2659: fix s_stream return value media: am437x-vpfe: Setting STD to current value is not an error IB/iser: bound protection_sg size by data_sg size rtlwifi: prevent memory leak in rtl_usb_probe staging: rtl8188eu: fix possible null dereference * spi: Add call to spi_slave_abort() function when spidev driver is released drivers/spi/spidev.c iio: light: bh1750: Resolve compiler warning and make code more readable drm: mst: Fix query_payload ack reply struct ALSA: hda/ca0132 - Avoid endless loop ALSA: hda/ca0132 - Keep power on during processing DSP response btrfs: handle ENOENT in btrfs_uuid_tree_iterate btrfs: do not leak reloc root if we fail to read the fs root Linux 4.4.207 net: stmmac: don't stop NAPI processing when dropping a packet net: stmmac: use correct DMA buffer size in the RX descriptor * xhci: fix USB3 device initiated resume race with roothub autosuspend drivers/usb/host/xhci-hub.c drivers/usb/host/xhci-ring.c drivers/usb/host/xhci.h drm/radeon: fix r1xx/r2xx register checker for POT textures dm btree: increase rebalance threshold in __rebalance2() vfio/pci: call irq_bypass_unregister_producer() before freeing irq ARM: tegra: Fix FLOW_CTLR_HALT register clobbering by tegra_resume() ARM: dts: s3c64xx: Fix init order of clock providers CIFS: Respect O_SYNC and O_DIRECT flags during reconnect xtensa: fix TLB sanity checker * PCI/MSI: Fix incorrect MSI-X masking on resume drivers/pci/msi.c * PCI: Fix Intel ACS quirk UPDCR register address drivers/pci/quirks.c net: ethernet: ti: cpsw: fix extra rx interrupt * tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE() include/net/tcp.h * tcp: tighten acceptance of ACKs not matching a child socket include/net/tcp.h * tcp: fix rejected syncookies due to stale timestamps include/linux/time.h include/net/tcp.h * inet: protect against too small mtu values. include/linux/netdevice.h include/net/ip.h net/core/dev.c net/ipv4/devinet.c net/ipv4/ip_output.c tipc: fix ordering of tipc module init and exit routine * tcp: md5: fix potential overestimation of TCP option space net/ipv4/tcp_output.c * net: bridge: deny dev_set_mac_address() when unregistering net/bridge/br_device.c * kernel/module.c: wakeup processes in module_wq on module unload kernel/module.c sunrpc: fix crash when cache_head become valid before update * workqueue: Fix missing kfree(rescuer) in destroy_workqueue() kernel/workqueue.c * blk-mq: make sure that line break can be printed block/blk-mq-sysfs.c * mm/shmem.c: cast the type of unmap_start to u64 mm/shmem.c powerpc: Fix vDSO clock_getres() scsi: qla2xxx: Always check the qla2x00_wait_for_hba_online() return value scsi: qla2xxx: Fix qla24xx_process_bidir_cmd() scsi: qla2xxx: Fix DMA unmap leak pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init ARM: dts: omap3-tao3530: Fix incorrect MMC card detection GPIO polarity x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models e100: Fix passing zero to 'PTR_ERR' warning in e100_load_ucode_wait scsi: lpfc: Cap NPIV vports to 256 Btrfs: fix negative subv_writers counter and data space leak after buffered write iio: adis16480: Add debugfs_reg_access entry * xhci: make sure interrupts are restored to correct state drivers/usb/host/xhci-hub.c * xhci: Fix memory leak in xhci_add_in_port() drivers/usb/host/xhci-mem.c * usb: xhci: only set D3hot for pci device drivers/usb/host/xhci-pci.c drivers/usb/host/xhci.c drivers/usb/host/xhci.h scsi: zfcp: trace channel log even for FCP command responses * quota: fix livelock in dquot_writeback_dquots fs/quota/dquot.c * quota: Check that quota is not dirty before release fs/quota/dquot.c include/linux/quotaops.h video/hdmi: Fix AVI bar unpack powerpc: Allow 64bit VDSO __kernel_sync_dicache to work across ranges >4GB pinctrl: samsung: Fix device node refcount leaks in init code pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup controller init * ACPI: PM: Avoid attaching ACPI PM domain to certain devices drivers/acpi/device_pm.c * ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data() drivers/acpi/bus.c * ACPI: OSL: only free map once in osl.c drivers/acpi/osl.c * cpuidle: Do not unset the driver if it is there already drivers/cpuidle/driver.c media: radio: wl1273: fix interrupt masking on release media: bdisp: fix memleak on release ar5523: check NULL before memcpy() in ar5523_cmd() cgroup: pids: use atomic64_t for pids->limit * blk-mq: avoid sysfs buffer overflow with too many CPU cores block/blk-mq-sysfs.c * ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report sound/soc/soc-jack.c * workqueue: Fix pwq ref leak in rescuer_thread() kernel/workqueue.c * workqueue: Fix spurious sanity check failures in destroy_workqueue() kernel/workqueue.c lib: raid6: fix awk build warnings rtlwifi: rtl8192de: Fix missing enable interrupt flag rtlwifi: rtl8192de: Fix missing callback that tests for hw release of buffer rtlwifi: rtl8192de: Fix missing code to retrieve RX buffer address btrfs: Remove btrfs_bio::flags member btrfs: check page->mapping when loading free space cache virtio-balloon: fix managed page counts when migrating pages between zones mtd: spear_smi: Fix Write Burst mode usb: mon: Fix a deadlock in usbmon between mmap and read * usb: core: urb: fix URB structure initialization function drivers/usb/core/urb.c USB: adutux: fix interface sanity check USB: serial: io_edgeport: fix epic endpoint lookup USB: idmouse: fix interface sanity checks USB: atm: ueagle-atm: add missing endpoint check iio: humidity: hdc100x: fix IIO_HUMIDITYRELATIVE channel reporting * xhci: Increase STS_HALT timeout in xhci_suspend() drivers/usb/host/xhci.c staging: gigaset: add endpoint-type sanity check staging: gigaset: fix illegal free on probe errors staging: gigaset: fix general protection fault on probe staging: rtl8712: fix interface sanity check staging: rtl8188eu: fix interface sanity check * usb: Allow USB device to be warm reset in suspended state drivers/usb/core/hub.c * usb: gadget: configfs: Fix missing spin_lock_init() drivers/usb/gadget/configfs.c * fs/proc/array.c: allow reporting eip/esp for all coredumping threads fs/proc/array.c * proc: fix coredump vs read /proc/*/stat race fs/proc/array.c * fs/proc: Report eip/esp in /prod/PID/stat for coredumping fs/proc/array.c * fs/proc: Stop reporting eip and esp in /proc/PID/stat fs/proc/array.c * sched/core, x86: Make struct thread_info arch specific again include/linux/thread_info.h * sched/core: Add try_get_task_stack() and put_task_stack() include/linux/sched.h init/Kconfig * sched/core: Allow putting thread_info into task_struct include/linux/init_task.h include/linux/sched.h include/linux/thread_info.h init/Kconfig init/init_task.c kernel/sched/sched.h ALSA: hda - Fix pending unsol events at shutdown appletalk: Set error code if register_snap_client failed * appletalk: Fix potential NULL pointer dereference in unregister_snap_client include/linux/atalk.h KVM: x86: fix out-of-bounds write in KVM_GET_EMULATED_CPUID (CVE-2019-19332) * thermal: Fix deadlock in thermal thermal_zone_device_check drivers/thermal/thermal_core.c RDMA/qib: Validate ->show()/store() callbacks before calling them spi: atmel: Fix CS high support crypto: user - fix memory leak in crypto_report crypto: crypto4xx - fix double-free in crypto4xx_destroy_sdr KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES KVM: x86: do not modify masked bits of shared MSRs drm/i810: Prevent underflow in ioctl * jbd2: Fix possible overflow in jbd2_log_space_left() include/linux/jbd2.h can: slcan: Fix use-after-free Read in slcan_open tty: vt: keyboard: reject invalid keycodes CIFS: Fix SMB2 oplock break processing CIFS: Fix NULL-pointer dereference in smb2_push_mandatory_locks Input: goodix - add upside-down quirk for Teclast X89 tablet ALSA: pcm: oss: Avoid potential buffer overflows * fuse: verify attributes fs/fuse/dir.c fs/fuse/fuse_i.h * fuse: verify nlink fs/fuse/dir.c * sched/fair: Scale bandwidth quota and period without losing quota/period ratio precision kernel/sched/fair.c ARM: dts: sunxi: Fix PMU compatible strings mlx4: Use snprintf instead of complicated strcpy nfsd: Return EPERM, not EACCES, in some SETATTR cases MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition powerpc/math-emu: Update macros from GCC dlm: fix invalid cluster name warning ARM: dts: pxa: clean up USB controller nodes * kbuild: fix single target build for external module Makefile * modpost: skip ELF local symbols during section mismatch check scripts/mod/modpost.c * tcp: fix off-by-one bug on aborting window-probing socket net/ipv4/tcp_timer.c ARM: dts: mmp2: fix the gpio interrupt cell number net/x25: fix null_x25_address handling net/x25: fix called/calling length calculation in x25_parse_address_block ARM: OMAP1/2: fix SoC name printing nfsd: fix a warning in __cld_pipe_upcall() dlm: NULL check before kmem_cache_destroy is not needed i2c: imx: don't print error message on probe defer serial: imx: fix error handling in console_setup altera-stapl: check for a null key before strcasecmp'ing it * dma-mapping: fix return type of dma_set_max_seg_size() include/linux/dma-mapping.h * ACPI: fix acpi_find_child_device() invocation in acpi_preset_companion() include/linux/acpi.h dmaengine: coh901318: Remove unused variable dmaengine: coh901318: Fix a double-lock bug ARM: dts: exynos: Use Samsung SoC specific compatible for DWC2 module rtc: dt-binding: abx80x: fix resistance scale rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()' math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning MIPS: OCTEON: octeon-platform: fix typing * regulator: Fix return value of _set_load() stub include/linux/regulator/consumer.h Staging: iio: adt7316: Fix i2c data reading, set the data field pinctrl: qcom: ssbi-gpio: fix gpio-hog related boot issues scsi: zfcp: drop default switch case which might paper over missing case MIPS: SiByte: Enable ZONE_DMA32 for LittleSur dlm: fix missing idr_destroy for recover_idr clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering clk: rockchip: fix rk3188 sclk_smc gate data extcon: max8997: Fix lack of path setting in USB device mode ARM: 8813/1: Make aligned 2-byte getuser()/putuser() atomic on ARMv6+ iwlwifi: mvm: Send non offchannel traffic via AP sta * serial: core: Allow processing sysrq at port unlock time include/linux/serial_core.h net: ep93xx_eth: fix mismatch of request_mem_region in remove rsxx: add missed destroy_workqueue calls in remove * ALSA: pcm: Fix stream lock usage in snd_pcm_period_elapsed() sound/core/pcm_lib.c Input: cyttsp4_core - fix use after free bug NFC: nxp-nci: Fix NULL pointer dereference after I2C communication error autofs: fix a leak in autofs_expire_indirect() serial: ifx6x60: add missed pm_runtime_disable * serial: serial_core: Perform NULL checks for break_ctl ops drivers/tty/serial/serial_core.c x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect * tty: serial: msm_serial: Fix flow control drivers/tty/serial/msm_serial.c usb: gadget: u_serial: add missing port entry locking x86/apic/32: Avoid bogus LDR warnings Linux 4.4.206 platform/x86: hp-wmi: Fix ACPI errors caused by too small buffer hwrng: stm32 - fix unbalanced pm_runtime_enable * HID: core: check whether Usage Page item is after Usage ID items drivers/hid/hid-core.c * net: sched: fix `tc -s class show` no bstats on class with nolock subqueues net/sched/sch_mq.c net/sched/sch_multiq.c net/sched/sch_prio.c tipc: fix link name length check openvswitch: remove another BUG_ON() openvswitch: drop unneeded BUG_ON() in ovs_flow_cmd_build_info() slip: Fix use-after-free Read in slip_open openvswitch: fix flow command message size macvlan: schedule bc_work even if error * pwm: Clear chip_data in pwm_put() drivers/pwm/core.c net: macb: fix error format in dev_err() * media: v4l2-ctrl: fix flags for DO_WHITE_BALANCE drivers/media/v4l2-core/v4l2-ctrls.c mei: bus: prefix device names on bus with the bus name USB: serial: ftdi_sio: add device IDs for U-Blox C099-F9P staging: rtl8192e: fix potential use after free mtd: Remove a debug trace in mtdpart.c powerpc/pseries/dlpar: Fix a missing check in dlpar_parse_cc_property() scsi: libsas: Check SMP PHY control function result ACPI / APEI: Switch estatus pool to use vmalloc memory scsi: libsas: Support SATA PHY connection rate unmatch fixing during discovery * net: dev: Use unsigned integer as an argument to left-shift include/linux/netdevice.h * net: fix possible overflow in __sk_mem_raise_allocated() include/net/sock.h net/core/sock.c sfc: initialise found bitmap in efx_ef10_mtd_probe tipc: fix skb may be leaky in tipc_link_input decnet: fix DN_IFREQ_SIZE sfc: suppress duplicate nvmem partition types in efx_ef10_mtd_probe * net/core/neighbour: fix kmemleak minimal reference count for hash tables net/core/neighbour.c * net/core/neighbour: tell kmemleak about hash tables net/core/neighbour.c tipc: fix memory leak in tipc_nl_compat_publ_dump mtd: Check add_mtd_device() ret code * lib/genalloc.c: include vmalloc.h lib/genalloc.c * lib/genalloc.c: use vzalloc_node() to allocate the bitmap lib/genalloc.c ocfs2: clear journal dirty flag after shutdown journal tipc: fix a missing check of genlmsg_put atl1e: checking the status of atl1e_write_phy_reg net: stmicro: fix a missing check of clk_prepare um: Make GCOV depend on !KCOV * net/net_namespace: Check the return value of register_pernet_subsys() net/core/net_namespace.c regulator: tps65910: fix a missing check of return value drbd: fix print_st_err()'s prototype to match the definition drbd: reject attach of unsuitable uuids even if connected powerpc/44x/bamboo: Fix PCI range powerpc/mm: Make NULL pointer deferences explicit on bad page faults. powerpc/prom: fix early DEBUG messages ath6kl: Fix off by one error in scan completion ath6kl: Only use match sets when firmware supports it scsi: csiostor: fix incorrect dma device in case of vport scsi: qla2xxx: deadlock by configfs_depend_item RDMA/srp: Propagate ib_post_send() failures to the SCSI mid-layer openrisc: Fix broken paths to arch/or32 serial: max310x: Fix tx_empty() callback drivers/regulator: fix a missing check of return value powerpc/xmon: fix dump_segments() powerpc/book3s/32: fix number of bats in p/v_block_mapped() IB/qib: Fix an error code in qib_sdma_verbs_send() xfs: Align compat attrlist_by_handle with native implementation. gfs2: take jdata unstuff into account in do_grow HID: doc: fix wrong data structure reference for UHID_OUTPUT pinctrl: sh-pfc: sh7734: Fix shifted values in IPSR10 pinctrl: sh-pfc: sh7264: Fix PFCR3 and PFCR0 register configuration KVM: s390: unregister debug feature on failing arch init xen/pciback: Check dev_data before using it btrfs: only track ref_heads in delayed_ref_updates VSOCK: bind to random port for VMADDR_PORT_ANY * gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB include/linux/gpio/consumer.h microblaze: move "... is ready" messages to arch/microblaze/Makefile microblaze: adjust the help to the real behavior ubi: Do not drop UBI device reference before using ubi: Put MTD device after it is not used xfs: require both realtime inodes to mount rtl818x: fix potential use after free mwifiex: debugfs: correct histogram spacing, formatting mwifiex: fix potential NULL dereference and use after free crypto: user - support incremental algorithm dumps * ACPI / LPSS: Ignore acpi_device_fix_up_power() return value drivers/acpi/acpi_lpss.c ARM: ks8695: fix section mismatch warning PM / AVS: SmartReflex: NULL check before some freeing functions is not needed * arm64: smp: Handle errors reported by the firmware arch/arm64/kernel/smp.c parisc: Fix HP SDC hpa address output parisc: Fix serio address output ARM: dts: imx53-voipac-dmm-668: Fix memory node duplication ARM: debug-imx: only define DEBUG_IMX_UART_PORT if needed scsi: lpfc: Fix dif and first burst use in write commands block: drbd: remove a stray unlock in __drbd_send_protocol() scripts/gdb: fix debugging modules compiled with hot/cold partitioning can: c_can: D_CAN: c_can_chip_config(): perform a sofware reset on open can: peak_usb: report bus recovery as well * reset: fix reset_control_ops kerneldoc comment include/linux/reset-controller.h clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume ASoC: kirkwood: fix external clock probe defer * ASoC: compress: fix unsigned integer overflow check sound/core/compress_offload.c Change-Id: I42d8f774ccf01ac4a21979a591c760175e809353 Signed-off-by: lucaswei <lucaswei@google.com>	2020-02-14 10:45:26 +08:00
Eric Dumazet	8f9fc3e649	hrtimer: Annotate lockless access to timer->state ... commit 56144737e67329c9aaed15f942d46a6302e2e3d8 upstream. syzbot reported various data-race caused by hrtimer_is_queued() reading timer->state. A READ_ONCE() is required there to silence the warning. Also add the corresponding WRITE_ONCE() when timer->state is set. In remove_hrtimer() the hrtimer_is_queued() helper is open coded to avoid loading timer->state twice. KCSAN reported these cases: BUG: KCSAN: data-race in __remove_hrtimer / tcp_pacing_check write to 0xffff8880b2a7d388 of 1 bytes by interrupt on cpu 0: __remove_hrtimer+0x52/0x130 kernel/time/hrtimer.c:991 __run_hrtimer kernel/time/hrtimer.c:1496 [inline] __hrtimer_run_queues+0x250/0x600 kernel/time/hrtimer.c:1576 hrtimer_run_softirq+0x10e/0x150 kernel/time/hrtimer.c:1593 __do_softirq+0x115/0x33f kernel/softirq.c:292 run_ksoftirqd+0x46/0x60 kernel/softirq.c:603 smpboot_thread_fn+0x37d/0x4a0 kernel/smpboot.c:165 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 read to 0xffff8880b2a7d388 of 1 bytes by task 24652 on cpu 1: tcp_pacing_check net/ipv4/tcp_output.c:2235 [inline] tcp_pacing_check+0xba/0x130 net/ipv4/tcp_output.c:2225 tcp_xmit_retransmit_queue+0x32c/0x5a0 net/ipv4/tcp_output.c:3044 tcp_xmit_recovery+0x7c/0x120 net/ipv4/tcp_input.c:3558 tcp_ack+0x17b6/0x3170 net/ipv4/tcp_input.c:3717 tcp_rcv_established+0x37e/0xf50 net/ipv4/tcp_input.c:5696 tcp_v4_do_rcv+0x381/0x4e0 net/ipv4/tcp_ipv4.c:1561 sk_backlog_rcv include/net/sock.h:945 [inline] __release_sock+0x135/0x1e0 net/core/sock.c:2435 release_sock+0x61/0x160 net/core/sock.c:2951 sk_stream_wait_memory+0x3d7/0x7c0 net/core/stream.c:145 tcp_sendmsg_locked+0xb47/0x1f30 net/ipv4/tcp.c:1393 tcp_sendmsg+0x39/0x60 net/ipv4/tcp.c:1434 inet_sendmsg+0x6d/0x90 net/ipv4/af_inet.c:807 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg+0x9f/0xc0 net/socket.c:657 BUG: KCSAN: data-race in __remove_hrtimer / __tcp_ack_snd_check write to 0xffff8880a3a65588 of 1 bytes by interrupt on cpu 0: __remove_hrtimer+0x52/0x130 kernel/time/hrtimer.c:991 __run_hrtimer kernel/time/hrtimer.c:1496 [inline] __hrtimer_run_queues+0x250/0x600 kernel/time/hrtimer.c:1576 hrtimer_run_softirq+0x10e/0x150 kernel/time/hrtimer.c:1593 __do_softirq+0x115/0x33f kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0xbb/0xe0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0xe6/0x280 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 read to 0xffff8880a3a65588 of 1 bytes by task 22891 on cpu 1: __tcp_ack_snd_check+0x415/0x4f0 net/ipv4/tcp_input.c:5265 tcp_ack_snd_check net/ipv4/tcp_input.c:5287 [inline] tcp_rcv_established+0x750/0xf50 net/ipv4/tcp_input.c:5708 tcp_v4_do_rcv+0x381/0x4e0 net/ipv4/tcp_ipv4.c:1561 sk_backlog_rcv include/net/sock.h:945 [inline] __release_sock+0x135/0x1e0 net/core/sock.c:2435 release_sock+0x61/0x160 net/core/sock.c:2951 sk_stream_wait_memory+0x3d7/0x7c0 net/core/stream.c:145 tcp_sendmsg_locked+0xb47/0x1f30 net/ipv4/tcp.c:1393 tcp_sendmsg+0x39/0x60 net/ipv4/tcp.c:1434 inet_sendmsg+0x6d/0x90 net/ipv4/af_inet.c:807 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg+0x9f/0xc0 net/socket.c:657 __sys_sendto+0x21f/0x320 net/socket.c:1952 __do_sys_sendto net/socket.c:1964 [inline] __se_sys_sendto net/socket.c:1960 [inline] __x64_sys_sendto+0x89/0xb0 net/socket.c:1960 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 24652 Comm: syz-executor.3 Not tainted 5.4.0-rc3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ tglx: Added comments ] Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20191106174804.74723-1-edumazet@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2020-01-04 13:34:38 +01:00
Runmin Wang	9cc5c789d9	Merge remote-tracking branch 'msm4.4/tmp-da9a92f' into msm-4.4 ... * origin/tmp-da9a92f: arm64: kaslr: increase randomization granularity arm64: relocatable: deal with physically misaligned kernel images arm64: don't map TEXT_OFFSET bytes below the kernel if we can avoid it arm64: kernel: replace early 64-bit literal loads with move-immediates arm64: introduce mov_q macro to move a constant into a 64-bit register arm64: kernel: perform relocation processing from ID map arm64: kernel: use literal for relocated address of __secondary_switched arm64: kernel: don't export local symbols from head.S arm64: simplify kernel segment mapping granularity arm64: cover the .head.text section in the .text segment mapping arm64: move early boot code to the .init segment arm64: use 'segment' rather than 'chunk' to describe mapped kernel regions arm64: mm: Mark .rodata as RO Linux 4.4.16 ovl: verify upper dentry before unlink and rename drm/i915: Revert DisplayPort fast link training feature tmpfs: fix regression hang in fallocate undo tmpfs: don't undo fallocate past its last page crypto: qat - make qat_asym_algs.o depend on asn1 headers xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7 File names with trailing period or space need special case conversion cifs: dynamic allocation of ntlmssp blob Fix reconnect to not defer smb3 session reconnect long after socket reconnect 53c700: fix BUG on untagged commands s390: fix test_fp_ctl inline assembly contraints scsi: fix race between simultaneous decrements of ->host_failed ovl: verify upper dentry in ovl_remove_and_whiteout() ovl: Copy up underlying inode's ->i_mode to overlay inode ARM: mvebu: fix HW I/O coherency related deadlocks ARM: dts: armada-38x: fix MBUS_ID for crypto SRAM on Armada 385 Linksys ARM: sunxi/dt: make the CHIP inherit from allwinner,sun5i-a13 ALSA: hda: add AMD Stoney PCI ID with proper driver caps ALSA: hda - fix use-after-free after module unload ALSA: ctl: Stop notification after disconnection ALSA: pcm: Free chmap at PCM free callback, too ALSA: hda/realtek - add new pin definition in alc225 pin quirk table ALSA: hda - fix read before array start ALSA: hda - Add PCI ID for Kabylake-H ALSA: hda/realtek: Add Lenovo L460 to docking unit fixup ALSA: timer: Fix negative queue usage by racy accesses ALSA: echoaudio: Fix memory allocation ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift() ALSA: hda / realtek - add two more Thinkpad IDs (5050,5053) for tpt460 fixup ALSA: hda - Fix the headset mic jack detection on Dell machine ALSA: dummy: Fix a use-after-free at closing hwmon: (dell-smm) Cache fan_type() calls and change fan detection hwmon: (dell-smm) Disallow fan_type() calls on broken machines hwmon: (dell-smm) Restrict fan control and serial number to CAP_SYS_ADMIN by default tty/vt/keyboard: fix OOB access in do_compute_shiftstate() tty: vt: Fix soft lockup in fbcon cursor blink timer. iio:ad7266: Fix probe deferral for vref iio:ad7266: Fix support for optional regulators iio:ad7266: Fix broken regulator error handling iio: accel: kxsd9: fix the usage of spi_w8r8() staging: iio: accel: fix error check iio: hudmidity: hdc100x: fix incorrect shifting and scaling iio: humidity: hdc100x: fix IIO_TEMP channel reporting iio: humidity: hdc100x: correct humidity integration time mask iio: proximity: as3935: fix buffer stack trashing iio: proximity: as3935: remove triggered buffer processing iio: proximity: as3935: correct IIO_CHAN_INFO_RAW output iio: light apds9960: Add the missing dev.parent iio:st_pressure: fix sampling gains (bring inline with ABI) iio: Fix error handling in iio_trigger_attach_poll_func xen/balloon: Fix declared-but-not-defined warning perf/x86: Fix undefined shift on 32-bit kernels memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing drm/vmwgfx: Fix error paths when mapping framebuffer drm/vmwgfx: Delay pinning fbdev framebuffer until after mode set drm/vmwgfx: Check pin count before attempting to move a buffer drm/vmwgfx: Work around mode set failure in 2D VMs drm/vmwgfx: Add an option to change assumed FB bpp drm/ttm: Make ttm_bo_mem_compat available drm: atmel-hlcdc: actually disable scaling when no scaling is required drm: make drm_atomic_set_mode_prop_for_crtc() more reliable drm: add missing drm_mode_set_crtcinfo call drm/i915: Update CDCLK_FREQ register on BDW after changing cdclk frequency drm/i915: Update ifdeffery for mutex->owner drm/i915: Refresh cached DP port register value on resume drm/i915/ilk: Don't disable SSC source if it's in use drm/nouveau/disp/sor/gf119: select correct sor when poking training pattern drm/nouveau: fix for disabled fbdev emulation drm/nouveau/fbcon: fix out-of-bounds memory accesses drm/nouveau/gr/gf100-: update sm error decoding from gk20a nvgpu headers drm/nouveau/disp/sor/gf119: both links use the same training register virtio_balloon: fix PFN format for virtio-1 drm/dp/mst: Always clear proposed vcpi table for port. drm/amdkfd: destroy dbgmgr in notifier release drm/amdkfd: unbind only existing processes ubi: Make recover_peb power cut aware drm/amdgpu/gfx7: fix broken condition check drm/radeon: fix asic initialization for virtualized environments btrfs: account for non-CoW'd blocks in btrfs_abort_transaction percpu: fix synchronization between synchronous map extension and chunk destruction percpu: fix synchronization between chunk->map_extend_work and chunk destruction af_unix: fix hard linked sockets on overlay vfs: add d_real_inode() helper arm64: Rework valid_user_regs ipmi: Remove smi_msg from waiting_rcv_msgs list before handle_one_recv_msg() drm/mgag200: Black screen fix for G200e rev 4 iommu/amd: Fix unity mapping initialization race iommu/vt-d: Enable QI on all IOMMUs before setting root entry iommu/arm-smmu: Wire up map_sg for arm-smmu-v3 base: make module_create_drivers_dir race-free tracing: Handle NULL formats in hold_module_trace_bprintk_format() HID: multitouch: enable palm rejection for Windows Precision Touchpad HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands HID: elo: kill not flush the work KVM: nVMX: VMX instructions: fix segment checks when L1 is in long mode. kvm: Fix irq route entries exceeding KVM_MAX_IRQ_ROUTES KEYS: potential uninitialized variable ARCv2: LLSC: software backoff is NOT needed starting HS2.1c ARCv2: Check for LL-SC livelock only if LLSC is enabled ipv6: Fix mem leak in rt6i_pcpu cdc_ncm: workaround for EM7455 "silent" data interface net_sched: fix mirrored packets checksum packet: Use symmetric hash for PACKET_FANOUT_HASH. sched/fair: Fix cfs_rq avg tracking underflow UBIFS: Implement ->migratepage() mm: Export migrate_page_move_mapping and migrate_page_copy MIPS: KVM: Fix modular KVM under QEMU ARM: 8579/1: mm: Fix definition of pmd_mknotpresent ARM: 8578/1: mm: ensure pmd_present only checks the valid bit ARM: imx6ul: Fix Micrel PHY mask NFS: Fix another OPEN_DOWNGRADE bug make nfs_atomic_open() call d_drop() on all ->open_context() errors. nfsd: check permissions when setting ACLs posix_acl: Add set_posix_acl nfsd: Extend the mutex holding region around in nfsd4_process_open2() nfsd: Always lock state exclusively. nfsd4/rpc: move backchannel create logic into rpc code writeback: use higher precision calculation in domain_dirty_limits() thermal: cpu_cooling: fix improper order during initialization uvc: Forward compat ioctls to their handlers directly Revert "gpiolib: Split GPIO flags parsing and GPIO configuration" x86/amd_nb: Fix boot crash on non-AMD systems kprobes/x86: Clear TF bit in fault on single-stepping x86, build: copy ldlinux.c32 to image.iso locking/static_key: Fix concurrent static_key_slow_inc() locking/qspinlock: Fix spin_unlock_wait() some more locking/ww_mutex: Report recursive ww_mutex locking early of: irq: fix of_irq_get[_byname]() kernel-doc of: fix autoloading due to broken modalias with no 'compatible' mnt: If fs_fully_visible fails call put_filesystem. mnt: Account for MS_RDONLY in fs_fully_visible mnt: fs_fully_visible test the proper mount for MNT_LOCKED usb: common: otg-fsm: add license to usb-otg-fsm USB: EHCI: declare hostpc register as zero-length array usb: dwc2: fix regression on big-endian PowerPC/ARM systems powerpc/tm: Always reclaim in start_thread() for exec() class syscalls powerpc/pseries: Fix IBM_ARCH_VEC_NRCORES_OFFSET since POWER8NVL was added powerpc/pseries: Fix PCI config address for DDW powerpc/iommu: Remove the dependency on EEH struct in DDW mechanism IB/mlx4: Properly initialize GRH TClass and FlowLabel in AHs IB/cm: Fix a recently introduced locking bug EDAC, sb_edac: Fix rank lookup on Broadwell mac80211: Fix mesh estab_plinks counting in STA removal case mac80211_hwsim: Add missing check for HWSIM_ATTR_SIGNAL mac80211: mesh: flush mesh paths unconditionally mac80211: fix fast_tx header alignment Linux 4.4.15 usb: dwc3: exynos: Fix deferred probing storm. usb: host: ehci-tegra: Grab the correct UTMI pads reset usb: gadget: fix spinlock dead lock in gadgetfs USB: mos7720: delete parport xhci: Fix handling timeouted commands on hosts in weird states. USB: xhci: Add broken streams quirk for Frescologic device id 1009 usb: xhci-plat: properly handle probe deferral for devm_clk_get() xhci: Cleanup only when releasing primary hcd usb: musb: host: correct cppi dma channel for isoch transfer usb: musb: Ensure rx reinit occurs for shared_fifo endpoints usb: musb: Stop bulk endpoint while queue is rotated usb: musb: only restore devctl when session was set in backup usb: quirks: Add no-lpm quirk for Acer C120 LED Projector usb: quirks: Fix sorting USB: uas: Fix slave queue_depth not being set crypto: user - re-add size check for CRYPTO_MSG_GETALG crypto: ux500 - memmove the right size crypto: vmx - Increase priority of aes-cbc cipher AX.25: Close socket connection on session completion bpf: try harder on clones when writing into skb net: alx: Work around the DMA RX overflow issue net: macb: fix default configuration for GMAC on AT91 neigh: Explicitly declare RCU-bh read side critical section in neigh_xmit() bpf, perf: delay release of BPF prog after grace period sock_diag: do not broadcast raw socket destruction Bridge: Fix ipv6 mc snooping if bridge has no ipv6 address ipmr/ip6mr: Initialize the last assert time of mfc entries. netem: fix a use after free esp: Fix ESN generation under UDP encapsulation sit: correct IP protocol used in ipip6_err net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG net_sched: fix pfifo_head_drop behavior vs backlog sdcardfs: Truncate packages_gid.list on overflow UPSTREAM: cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind BACKPORT: proc: add /proc/<pid>/timerslack_ns interface BACKPORT: timer: convert timer_slack_ns from unsigned long to u64 netfilter: xt_quota2: make quota2_log work well Revert "usb: gadget: prevent change of Host MAC address of 'usb0' interface" BACKPORT: PM / sleep: Go direct_complete if driver has no callbacks ANDROID: base-cfg: enable UID_CPUTIME UPSTREAM: USB: usbfs: fix potential infoleak in devio UPSTREAM: ALSA: timer: Fix leak in events via snd_timer_user_ccallback UPSTREAM: ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt UPSTREAM: ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS ANDROID: configs: remove unused configs ANDROID: cpu: send KOBJ_ONLINE event when enabling cpus ANDROID: dm verity fec: initialize recursion level ANDROID: dm verity fec: fix RS block calculation Linux 4.4.14 netfilter: x_tables: introduce and use xt_copy_counters_from_user netfilter: x_tables: do compat validation via translate_table netfilter: x_tables: xt_compat_match_from_user doesn't need a retval netfilter: ip6_tables: simplify translate_compat_table args netfilter: ip_tables: simplify translate_compat_table args netfilter: arp_tables: simplify translate_compat_table args netfilter: x_tables: don't reject valid target size on some architectures netfilter: x_tables: validate all offsets and sizes in a rule netfilter: x_tables: check for bogus target offset netfilter: x_tables: check standard target size too netfilter: x_tables: add compat version of xt_check_entry_offsets netfilter: x_tables: assert minimum target size netfilter: x_tables: kill check_entry helper netfilter: x_tables: add and use xt_check_entry_offsets netfilter: x_tables: validate targets of jumps netfilter: x_tables: don't move to non-existent next rule drm/core: Do not preserve framebuffer on rmfb, v4. crypto: qat - fix adf_ctl_drv.c:undefined reference to adf_init_pf_wq netfilter: x_tables: fix unconditional helper netfilter: x_tables: make sure e->next_offset covers remaining blob size netfilter: x_tables: validate e->target_offset early MIPS: Fix 64k page support for 32 bit kernels. sparc64: Fix return from trap window fill crashes. sparc: Harden signal return frame checks. sparc64: Take ctx_alloc_lock properly in hugetlb_setup(). sparc64: Reduce TLB flushes during hugepte changes sparc/PCI: Fix for panic while enabling SR-IOV sparc64: Fix sparc64_set_context stack handling. sparc64: Fix numa node distance initialization sparc64: Fix bootup regressions on some Kconfig combinations. sparc: Fix system call tracing register handling. fix d_walk()/non-delayed __d_free() race sched: panic on corrupted stack end proc: prevent stacking filesystems on top x86/entry/traps: Don't force in_interrupt() to return true in IST handlers wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel ecryptfs: forbid opening files without mmap handler memcg: add RCU locking around css_for_each_descendant_pre() in memcg_offline_kmem() parisc: Fix pagefault crash in unaligned __get_user() call pinctrl: mediatek: fix dual-edge code defect powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call powerpc: Use privileged SPR number for MMCR2 powerpc: Fix definition of SIAR and SDAR registers powerpc/pseries/eeh: Handle RTAS delay requests in configure_bridge arm64: mm: always take dirty state from new pte in ptep_set_access_flags arm64: Provide "model name" in /proc/cpuinfo for PER_LINUX32 tasks crypto: ccp - Fix AES XTS error for request sizes above 4096 crypto: public_key: select CRYPTO_AKCIPHER irqchip/gic-v3: Fix ICC_SGI1R_EL1.INTID decoding mask s390/bpf: reduce maximum program size to 64 KB s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop gpio: bcm-kona: fix bcm_kona_gpio_reset() warnings ARM: fix PTRACE_SETVFPREGS on SMP systems ALSA: hda/realtek: Add T560 docking unit fixup ALSA: hda/realtek - Add support for new codecs ALC700/ALC701/ALC703 ALSA: hda/realtek - ALC256 speaker noise issue ALSA: hda - Fix headset mic detection problem for Dell machine ALSA: hda - Add PCI ID for Kabylake KVM: irqfd: fix NULL pointer dereference in kvm_irq_map_gsi KVM: x86: fix OOPS after invalid KVM_SET_DEBUGREGS vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices geneve: Relax MTU constraints vxlan: Relax MTU constraints ipv6: Skip XFRM lookup if dst_entry in socket cache is valid l2tp: fix configuration passed to setup_udp_tunnel_sock() bridge: Don't insert unnecessary local fdb entry on changing mac address tcp: record TLP and ER timer stats in v6 stats vxlan: Accept user specified MTU value when create new vxlan link team: don't call netdev_change_features under team->lock sfc: on MC reset, clear PIO buffer linkage in TXQs bpf, inode: disallow userns mounts uapi glibc compat: fix compilation when !__USE_MISC in glibc udp: prevent skbs lingering in tunnel socket queues bpf: Use mount_nodev not mount_ns to mount the bpf filesystem tuntap: correctly wake up process during uninit switchdev: pass pointer to fib_info instead of copy tipc: fix nametable publication field in nl compat netlink: Fix dump skb leak/double free tipc: check nl sock before parsing nested attributes scsi: Add QEMU CD-ROM to VPD Inquiry Blacklist scsi_lib: correctly retry failed zero length REQ_TYPE_FS commands cs-etm: associating output packet with CPU they executed on cs-etm: removing unecessary structure field cs-etm: account for each trace buffer in the queue cs-etm: avoid casting variable perf tools: fixing Makefile problems perf tools: new naming convention for openCSD perf scripts: Add python scripts for CoreSight traces perf tools: decoding capailitity for CoreSight traces perf symbols: Check before overwriting build_id perf tools: pushing driver configuration down to the kernel perf tools: add infrastructure for PMU specific configuration coresight: etm-perf: incorporating sink definition from the cmd line coresight: adding sink parameter to function coresight_build_path() perf: passing struct perf_event to function setup_aux() perf/core: adding PMU driver specific configuration perf tools: adding coresight etm PMU record capabilities perf tools: making coresight PMU listable coresight: tmc: implementing TMC-ETR AUX space API coresight: Add support for Juno platform coresight: Handle build path error coresight: Fix erroneous memset in tmc_read_unprepare_etr coresight: Fix tmc_read_unprepare_etr coresight: Fix NULL pointer dereference in _coresight_build_path ANDROID: dm verity fec: add missing release from fec_ktype ANDROID: dm verity fec: limit error correction recursion ANDROID: restrict access to perf events FROMLIST: security,perf: Allow further restriction of perf_event_open BACKPORT: perf tools: Document the perf sysctls Revert "armv6 dcc tty driver" Revert "arm: dcc_tty: fix armv6 dcc tty build failure" ARM64: Ignore Image-dtb from git point of view arm64: add option to build Image-dtb ANDROID: usb: gadget: f_midi: set fi->f to NULL when free f_midi function Linux 4.4.13 xfs: handle dquot buffer readahead in log recovery correctly xfs: print name of verifier if it fails xfs: skip stale inodes in xfs_iflush_cluster xfs: fix inode validity check in xfs_iflush_cluster xfs: xfs_iflush_cluster fails to abort on error xfs: Don't wrap growfs AGFL indexes xfs: disallow rw remount on fs with unknown ro-compat features gcov: disable tree-loop-im to reduce stack usage scripts/package/Makefile: rpmbuild add support of RPMOPTS dma-debug: avoid spinlock recursion when disabling dma-debug PM / sleep: Handle failures in device_suspend_late() consistently ext4: silence UBSAN in ext4_mb_init() ext4: address UBSAN warning in mb_find_order_for_block() ext4: fix oops on corrupted filesystem ext4: clean up error handling when orphan list is corrupted ext4: fix hang when processing corrupted orphaned inode list drm/imx: Match imx-ipuv3-crtc components using device node in platform data drm/i915: Don't leave old junk in ilk active watermarks on readout drm/atomic: Verify connector->funcs != NULL when clearing states drm/fb_helper: Fix references to dev->mode_config.num_connector drm/i915/fbdev: Fix num_connector references in intel_fb_initial_config() drm/amdgpu: Fix hdmi deep color support. drm/amdgpu: use drm_mode_vrefresh() rather than mode->vrefresh drm/vmwgfx: Fix order of operation drm/vmwgfx: use vmw_cmd_dx_cid_check for query commands. drm/vmwgfx: Enable SVGA_3D_CMD_DX_SET_PREDICATION drm/gma500: Fix possible out of bounds read sunrpc: fix stripping of padded MIC tokens xen: use same main loop for counting and remapping pages xen/events: Don't move disabled irqs powerpc/eeh: Restore initial state in eeh_pe_reset_and_recover() Revert "powerpc/eeh: Fix crash in eeh_add_device_early() on Cell" powerpc/eeh: Don't report error in eeh_pe_reset_and_recover() powerpc/book3s64: Fix branching to OOL handlers in relocatable kernel pipe: limit the per-user amount of pages allocated in pipes QE-UART: add "fsl,t1040-ucc-uart" to of_device_id wait/ptrace: assume __WALL if the child is traced mm: use phys_addr_t for reserve_bootmem_region() arguments media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32 PCI: Disable all BAR sizing for devices with non-compliant BARs pinctrl: exynos5440: Use off-stack memory for pinctrl_gpio_range clk: bcm2835: divider value has to be 1 or more clk: bcm2835: pll_off should only update CM_PLL_ANARST clk: at91: fix check of clk_register() returned value clk: bcm2835: Fix PLL poweron cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter() cpuidle: Indicate when a device has been unregistered PM / Runtime: Fix error path in pm_runtime_force_resume() mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table correctly mfd: intel-lpss: Save register context on suspend hwmon: (ads7828) Enable internal reference aacraid: Fix for KDUMP driver hang aacraid: Fix for aac_command_thread hang aacraid: Relinquish CPU during timeout wait rtlwifi: pci: use dev_kfree_skb_irq instead of kfree_skb in rtl_pci_reset_trx_ring rtlwifi: Fix logic error in enter/exit power-save mode rtlwifi: btcoexist: Implement antenna selection rtlwifi: rtl8723be: Add antenna select module parameter hwrng: exynos - Fix unbalanced PM runtime put on timeout error path ath5k: Change led pin configuration for compaq c700 laptop ath10k: fix kernel panic, move arvifs list head init before htt init ath10k: fix rx_channel during hw reconfigure ath10k: fix firmware assert in monitor mode ath10k: fix debugfs pktlog_filter write ath9k: Fix LED polarity for some Mini PCI AR9220 MB92 cards. ath9k: Add a module parameter to invert LED polarity. ARM: dts: imx35: restore existing used clock enumeration ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats ARM: dts: at91: fix typo in sama5d2 PIN_PD24 description ARM: mvebu: fix GPIO config on the Linksys boards Input: uinput - handle compat ioctl for UI_SET_PHYS ASoC: ak4642: Enable cache usage to fix crashes on resume affs: fix remount failure when there are no options changed MIPS: VDSO: Build with `-fno-strict-aliasing' MIPS: lib: Mark intrinsics notrace MIPS: Build microMIPS VDSO for microMIPS kernels MIPS: Fix sigreturn via VDSO on microMIPS kernel MIPS: ptrace: Prevent writes to read-only FCSR bits MIPS: ptrace: Fix FP context restoration FCSR regression MIPS: Disable preemption during prctl(PR_SET_FP_MODE, ...) MIPS: Prevent "restoration" of MSA context in non-MSA kernels MIPS: Fix MSA ld_*/st_* asm macros to use PTR_ADDU MIPS: Use copy_s.fmt rather than copy_u.fmt MIPS: Loongson-3: Reserve 32MB for RS780E integrated GPU MIPS: Reserve nosave data for hibernation MIPS: ath79: make bootconsole wait for both THRE and TEMT MIPS: Sync icache & dcache in set_pte_at MIPS: Handle highmem pages in __update_cache MIPS: Flush highmem pages in __flush_dcache_page MIPS: Fix watchpoint restoration MIPS: Fix uapi include in exported asm/siginfo.h MIPS: Fix siginfo.h to use strict posix types MIPS: Avoid using unwind_stack() with usermode MIPS: Don't unwind to user mode with EVA MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC MIPS: math-emu: Fix jalr emulation when rd == $0 MIPS64: R6: R2 emulation bugfix coresight: etb10: adjust read pointer only when needed coresight: configuring ETF in FIFO mode when acting as link coresight: tmc: implementing TMC-ETF AUX space API coresight: moving struct cs_buffers to header file coresight: tmc: keep track of memory width coresight: tmc: make sysFS and Perf mode mutually exclusive coresight: tmc: dump system memory content only when needed coresight: tmc: adding mode of operation for link/sinks coresight: tmc: getting rid of multiple read access coresight: tmc: allocating memory when needed coresight: tmc: making prepare/unprepare functions generic coresight: tmc: splitting driver in ETB/ETF and ETR components coresight: tmc: cleaning up header file coresight: tmc: introducing new header file coresight: tmc: clearly define number of transfers per burst coresight: tmc: re-implementing tmc_read_prepare/unprepare() functions coresight: tmc: waiting for TMCReady bit before programming coresight: tmc: modifying naming convention coresight: tmc: adding sysFS management entries coresight: etm4x: add tracer ID for A72 Maia processor. coresight: etb10: fixing the right amount of words to read coresight: stm: adding driver for CoreSight STM component coresight: adding path for STM device coresight: etm4x: modify q_support type coresight: no need to do the forced type conversion coresight: removing gratuitous boot time log messages coresight: etb10: splitting sysFS "status" entry coresight: moving coresight_simple_func() to header file coresight: etm4x: implementing the perf PMU API coresight: etm4x: implementing user/kernel mode tracing coresight: etm4x: moving etm_drvdata::enable to atomic field coresight: etm4x: unlocking tracers in default arch init coresight: etm4x: splitting etmv4 default configuration coresight: etm4x: splitting struct etmv4_drvdata coresight: etm4x: adding config and traceid registers coresight: etm4x: moving sysFS entries to a dedicated file stm class: Support devices that override software assigned masters stm class: Remove unnecessary pointer increment stm class: Fix stm device initialization order stm class: Do not leak the chrdev in error path stm class: Remove a pointless line stm class: stm_heartbeat: Make nr_devs parameter read-only stm class: dummy_stm: Make nr_dummies parameter read-only MAINTAINERS: Add a git tree for the stm class perf/ring_buffer: Document AUX API usage perf/core: Free AUX pages in unmap path perf/ring_buffer: Refuse to begin AUX transaction after rb->aux_mmap_count drops perf auxtrace: Add perf_evlist pointer to *info_priv_size() perf session: Simplify tool stubs perf inject: Hit all DSOs for AUX data in JIT and other cases perf tools: tracepoint_error() can receive e=NULL, robustify it perf evlist: Make perf_evlist__open() open evsels with their cpus and threads (like perf record does) perf evsel: Introduce disable() method perf cpumap: Auto initialize cpu__max_{node,cpu} drivers/hwtracing: make coresight-etm-perf.c explicitly non-modular drivers/hwtracing: make coresight-* explicitly non-modular coresight: introducing a global trace ID function coresight: etm-perf: new PMU driver for ETM tracers coresight: etb10: implementing AUX API coresight: etb10: adding operation mode for sink->enable() coresight: etb10: moving to local atomic operations coresight: etm3x: implementing perf_enable/disable() API coresight: etm3x: implementing user/kernel mode tracing coresight: etm3x: consolidating initial config coresight: etm3x: changing default trace configuration coresight: etm3x: set progbit to stop trace collection coresight: etm3x: adding operation mode for etm_enable() coresight: etm3x: splitting struct etm_drvdata coresight: etm3x: unlocking tracers in default arch init coresight: etm3x: moving sysFS entries to dedicated file coresight: etm3x: moving etm_readl/writel to header file coresight: moving PM runtime operations to core framework coresight: add API to get sink from path coresight: associating path with session rather than tracer coresight: etm4x: Check every parameter used by dma_xx_coherent. coresight: "DEVICE_ATTR_RO" should defined as static. coresight: implementing 'cpu_id()' API coresight: removing bind/unbind options from sysfs coresight: remove csdev's link from topology coresight: release reference taken by 'bus_find_device()' coresight: coresight_unregister() function cleanup coresight: fixing lockdep error coresight: fixing indentation problem coresight: Fix a typo in Kconfig coresight: checking for NULL string in coresight_name_match() perf/core: Disable the event on a truncated AUX record perf/core: Don't leak event in the syscall error path perf/core: Fix perf_sched_count derailment stm class: dummy_stm: Add link callback for fault injection stm class: Plug stm device's unlink callback stm class: Fix a race in unlinking stm class: Fix unbalanced module/device refcounting stm class: Guard output assignment against concurrency stm class: Fix unlocking braino in the error path stm class: Add heartbeat stm source device stm class: dummy_stm: Create multiple devices stm class: Support devices with multiple instances stm class: Use driver's packet callback return value stm class: Prevent user-controllable allocations stm class: Fix link list locking stm class: Fix locking in unbinding policy path stm class: Select CONFIG_SRCU stm class: Hide STM-specific options if STM is disabled perf: Synchronously free aux pages in case of allocation failure Linux 4.4.12 kbuild: move -Wunused-const-variable to W=1 warning level Revert "scsi: fix soft lockup in scsi_remove_target() on module removal" scsi: Add intermediate STARGET_REMOVE state to scsi_target_state hpfs: implement the show_options method hpfs: fix remount failure when there are no options changed UBI: Fix static volume checks when Fastmap is used SIGNAL: Move generic copy_siginfo() to signal.h thunderbolt: Fix double free of drom buffer IB/srp: Fix a debug kernel crash ALSA: hda - Fix headset mic detection problem for one Dell machine ALSA: hda/realtek - Add support for ALC295/ALC3254 ALSA: hda - Fix headphone noise on Dell XPS 13 9360 ALSA: hda/realtek - New codecs support for ALC234/ALC274/ALC294 mcb: Fixed bar number assignment for the gdd clk: bcm2835: add locking to pll*_on/off methods locking,qspinlock: Fix spin_is_locked() and spin_unlock_wait() serial: samsung: Reorder the sequence of clock control when call s3c24xx_serial_set_termios() serial: 8250_mid: recognize interrupt source in handler serial: 8250_mid: use proper bar for DNV platform serial: 8250_pci: fix divide error bug if baud rate is 0 Fix OpenSSH pty regression on close tty/serial: atmel: fix hardware handshake selection TTY: n_gsm, fix false positive WARN_ON tty: vt, return error when con_startup fails xen/x86: actually allocate legacy interrupts on PV guests KVM: x86: mask CPUID(0xD,0x1).EAX against host value MIPS: KVM: Fix timer IRQ race when writing CP0_Compare MIPS: KVM: Fix timer IRQ race when freezing timer KVM: x86: fix ordering of cr0 initialization code in vmx_cpu_reset KVM: MTRR: remove MSR 0x2f8 staging: comedi: das1800: fix possible NULL dereference usb: gadget: udc: core: Fix argument of dev_err() in usb_gadget_map_request() USB: leave LPM alone if possible when binding/unbinding interface drivers usb: misc: usbtest: fix pattern tests for scatterlists. usb: f_mass_storage: test whether thread is running before starting another usb: gadget: f_fs: Fix EFAULT generation for async read operations USB: serial: option: add even more ZTE device ids USB: serial: option: add more ZTE device ids USB: serial: option: add support for Cinterion PH8 and AHxx USB: serial: io_edgeport: fix memory leaks in probe error path USB: serial: io_edgeport: fix memory leaks in attach error path USB: serial: quatech2: fix use-after-free in probe error path USB: serial: keyspan: fix use-after-free in probe error path USB: serial: mxuport: fix use-after-free in probe error path mei: bus: call mei_cl_read_start under device lock mei: amthif: discard not read messages mei: fix NULL dereferencing during FW initiated disconnection Bluetooth: vhci: Fix race at creating hci device Bluetooth: vhci: purge unhandled skbs Bluetooth: vhci: fix open_timeout vs. hdev race mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers mmc: longer timeout for long read time quirk dell-rbtn: Ignore ACPI notifications if device is suspended ACPI / osi: Fix an issue that acpi_osi=!* cannot disable ACPICA internal strings mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers mmc: mmc: Fix partition switch timeout for some eMMCs can: fix handling of unmodifiable configuration options irqchip/gic-v3: Configure all interrupts as non-secure Group-1 irqchip/gic: Ensure ordering between read of INTACK and shared data Input: pwm-beeper - fix - scheduling while atomic mfd: omap-usb-tll: Fix scheduling while atomic BUG sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems clk: qcom: msm8916: Fix crypto clock flags crypto: sun4i-ss - Replace spinlock_bh by spin_lock_irq{save|restore} crypto: talitos - fix ahash algorithms registration crypto: caam - fix caam_jr_alloc() ret code ring-buffer: Prevent overflow of size in ring_buffer_resize() ring-buffer: Use long for nr_pages to avoid overflow failures asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions fs/cifs: correctly to anonymous authentication for the NTLM(v2) authentication fs/cifs: correctly to anonymous authentication for the NTLM(v1) authentication fs/cifs: correctly to anonymous authentication for the LANMAN authentication fs/cifs: correctly to anonymous authentication via NTLMSSP remove directory incorrectly tries to set delete on close on non-empty directories kvm: arm64: Fix EC field in inject_abt64 arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str arm64: Implement pmdp_set_access_flags() for hardware AF/DBM arm64: Implement ptep_set_access_flags() for hardware AF/DBM arm64: Ensure pmd_present() returns false after pmd_mknotpresent() arm64: Fix typo in the pmdp_huge_get_and_clear() definition ext4: iterate over buffer heads correctly in move_extent_per_page() perf test: Fix build of BPF and LLVM on older glibc libraries perf/core: Fix perf_event_open() vs. execve() race perf/x86/intel/pt: Generate PMI in the STOP region as well Btrfs: don't use src fd for printk UPSTREAM: mac80211: fix "warning: ‘target_metric’ may be used uninitialized" Revert "drivers: power: use 'current' instead of 'get_current()'" cpufreq: interactive: drop cpufreq_{get,put}_global_kobject func calls Revert "cpufreq: interactive: build fixes for 4.4" xt_qtaguid: Fix panic caused by processing non-full socket. fiq_debugger: Add fiq_debugger.disable option UPSTREAM: procfs: fixes pthread cross-thread naming if !PR_DUMPABLE FROMLIST: wlcore: Disable filtering in AP role Revert "drivers: power: Add watchdog timer to catch drivers which lockup during suspend." fiq_debugger: Add option to apply uart overlay by FIQ_DEBUGGER_UART_OVERLAY Revert "Recreate asm/mach/mmc.h include file" Revert "ARM: Add 'card_present' state to mmc_platfrom_data" usb: dual-role: make stub functions inline Revert "mmc: Add status IRQ and status callback function to mmc platform data" quick selinux support for tracefs Revert "hid-multitouch: Filter collections by application usage." Revert "HID: steelseries: validate output report details" xt_qtaguid: Fix panic caused by synack processing Revert "mm: vmscan: Add a debug file for shrinkers" Revert "SELinux: Enable setting security contexts on rootfs inodes." Revert "SELinux: build fix for 4.1" fuse: Add support for d_canonical_path vfs: change d_canonical_path to take two paths android: recommended.cfg: remove CONFIG_UID_STAT netfilter: xt_qtaguid: seq_printf fixes Revert "misc: uidstat: Adding uid stat driver to collect network statistics." Revert "net: activity_stats: Add statistics for network transmission activity" Revert "net: activity_stats: Stop using obsolete create_proc_read_entry api" Revert "misc: uidstat: avoid create_stat() race and blockage." Revert "misc: uidstat: Remove use of obsolete create_proc_read_entry api" Revert "misc seq_printf fixes for 4.4" Revert "misc: uid_stat: Include linux/atomic.h instead of asm/atomic.h" Revert "net: socket ioctl to reset connections matching local address" Revert "net: fix iterating over hashtable in tcp_nuke_addr()" Revert "net: fix crash in tcp_nuke_addr()" Revert "Don't kill IPv4 sockets when killing IPv6 sockets was requested." Revert "tcp: Fix IPV6 module build errors" android: base-cfg: remove CONFIG_SWITCH Revert "switch: switch class and GPIO drivers." Revert "drivers: switch: remove S_IWUSR from dev_attr" ANDROID: base-cfg: enable CONFIG_IP_NF_NAT BACKPORT: selinux: restrict kernel module loading android: base-cfg: enable CONFIG_QUOTA Conflicts: Documentation/sysctl/kernel.txt drivers/cpufreq/cpufreq_interactive.c drivers/hwtracing/coresight/Kconfig drivers/hwtracing/coresight/Makefile drivers/hwtracing/coresight/coresight-etm4x.c drivers/hwtracing/coresight/coresight-etm4x.h drivers/hwtracing/coresight/coresight-priv.h drivers/hwtracing/coresight/coresight-stm.c drivers/hwtracing/coresight/coresight-tmc.c drivers/mmc/core/core.c include/linux/coresight-stm.h include/linux/coresight.h include/linux/msm_mdp.h include/uapi/linux/coresight-stm.h kernel/events/core.c kernel/sched/fair.c net/Makefile net/ipv4/netfilter/arp_tables.c net/ipv4/netfilter/ip_tables.c net/ipv4/tcp.c net/ipv6/netfilter/ip6_tables.c net/netfilter/xt_quota2.c sound/core/pcm.c Change-Id: I17aa0002815014e9bddc47e67769a53c15768a99 Signed-off-by: Runmin Wang <runminw@codeaurora.org>	2016-10-28 10:48:35 -07:00
Viresh Kumar	f461d408ac	hrtimer: create hrtimer_quiesce_cpu() to isolate CPU from hrtimers ... To isolate CPUs (isolate from hrtimers) from sysfs using cpusets, we need some support from the hrtimer core. i.e. A routine hrtimer_quiesce_cpu() which would migrate away all the unpinned hrtimers, but shouldn't touch the pinned ones. This patch creates this routine. Change-Id: I51259ea41e3bd5cdba50b718201a6840174a7224 Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> [forward port to 3.18] Signed-off-by: Santosh Shukla <santosh.shukla@linaro.org> [ohaugan@codeaurora.org: Port to 4.4] Git-commit: d4d50a0ddc35e58ee95137ba4d14e74fea8b682f Git-repo: git://git.linaro.org/people/mike.holmes/santosh.shukla/lng-isol.git Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>	2016-09-20 17:47:12 -07:00
Viresh Kumar	d0cea65e27	hrtimer: update timer->state with 'pinned' information ... 'Pinned' information would be required in migrate_hrtimers() now, as we can migrate non-pinned timers away without a hotplug (i.e. with cpuset.quiesce). And so we may need to identify pinned timers now, as we can't migrate them. This patch reuses the timer->state variable for setting this flag as there were enough number of free bits available in this variable. And there is no point increasing size of this struct by adding another field. Change-Id: If3b3770e547971809e789ea7c8033c48ec2aa92d Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> [forward port to 3.18] Signed-off-by: Santosh Shukla <santosh.shukla@linaro.org> [ohaugan@codeaurora.org: Port to 4.4] Git-commit: 62feaf1ed0b64c04868d143d8bdb92d60dc3189b Git-repo: git://git.linaro.org/people/mike.holmes/santosh.shukla/lng-isol.git Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>	2016-09-20 17:47:12 -07:00
John Stultz	7584a50e33	BACKPORT: timer: convert timer_slack_ns from unsigned long to u64 ... This backports da8b44d5a9f8bf26da637b7336508ca534d6b319 from upstream. This patchset introduces a /proc/<pid>/timerslack_ns interface which would allow controlling processes to be able to set the timerslack value on other processes in order to save power by avoiding wakeups (Something Android currently does via out-of-tree patches). The first patch tries to fix the internal timer_slack_ns usage which was defined as a long, which limits the slack range to ~4 seconds on 32bit systems. It converts it to a u64, which provides the same basically unlimited slack (500 years) on both 32bit and 64bit machines. The second patch introduces the /proc/<pid>/timerslack_ns interface which allows the full 64bit slack range for a task to be read or set on both 32bit and 64bit machines. With these two patches, on a 32bit machine, after setting the slack on bash to 10 seconds: $ time sleep 1 real 0m10.747s user 0m0.001s sys 0m0.005s The first patch is a little ugly, since I had to chase the slack delta arguments through a number of functions converting them to u64s. Let me know if it makes sense to break that up more or not. Other than that things are fairly straightforward. This patch (of 2): The timer_slack_ns value in the task struct is currently a unsigned long. This means that on 32bit applications, the maximum slack is just over 4 seconds. However, on 64bit machines, its much much larger (~500 years). This disparity could make application development a little (as well as the default_slack) to a u64. This means both 32bit and 64bit systems have the same effective internal slack range. Now the existing ABI via PR_GET_TIMERSLACK and PR_SET_TIMERSLACK specify the interface as a unsigned long, so we preserve that limitation on 32bit systems, where SET_TIMERSLACK can only set the slack to a unsigned long value, and GET_TIMERSLACK will return ULONG_MAX if the slack is actually larger then what can be stored by an unsigned long. This patch also modifies hrtimer functions which specified the slack delta as a unsigned long. Signed-off-by: John Stultz <john.stultz@linaro.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Oren Laadan <orenl@cellrox.com> Cc: Ruchi Kandoi <kandoiruchi@google.com> Cc: Rom Lemarchand <romlem@android.com> Cc: Kees Cook <keescook@chromium.org> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2016-07-11 12:43:04 +05:30
Thomas Gleixner	dd0d511548	hrtimer: Handle remaining time proper for TIME_LOW_RES ... commit 203cbf77de59fc8f13502dcfd11350c6d4a5c95f upstream. If CONFIG_TIME_LOW_RES is enabled we add a jiffie to the relative timeout to prevent short sleeps, but we do not account for that in interfaces which retrieve the remaining time. Helge observed that timerfd can return a remaining time larger than the relative timeout. That's not expected and breaks userland test programs. Store the information that the timer was armed relative and provide functions to adjust the remaining time. To avoid bloating the hrtimer struct make state a u8, which as a bonus results in better code on x86 at least. Reported-and-tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org> Cc: linux-m68k@lists.linux-m68k.org Cc: dhowells@redhat.com Link: http://lkml.kernel.org/r/20160114164159.273328486@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2016-02-17 12:30:57 -08:00
Thomas Gleixner	683be13a28	timer: Minimize nohz off overhead ... If nohz is disabled on the kernel command line the [hr]timer code still calls wake_up_nohz_cpu() and tick_nohz_full_cpu(), a pretty pointless exercise. Cache nohz_active in [hr]timer per cpu bases and avoid the overhead. Before: 48.10% hog [.] main 15.25% [kernel] [k] _raw_spin_lock_irqsave 9.76% [kernel] [k] _raw_spin_unlock_irqrestore 6.50% [kernel] [k] mod_timer 6.44% [kernel] [k] lock_timer_base.isra.38 3.87% [kernel] [k] detach_if_pending 3.80% [kernel] [k] del_timer 2.67% [kernel] [k] internal_add_timer 1.33% [kernel] [k] __internal_add_timer 0.73% [kernel] [k] timerfn 0.54% [kernel] [k] wake_up_nohz_cpu After: 48.73% hog [.] main 15.36% [kernel] [k] _raw_spin_lock_irqsave 9.77% [kernel] [k] _raw_spin_unlock_irqrestore 6.61% [kernel] [k] lock_timer_base.isra.38 6.42% [kernel] [k] mod_timer 3.90% [kernel] [k] detach_if_pending 3.76% [kernel] [k] del_timer 2.41% [kernel] [k] internal_add_timer 1.39% [kernel] [k] __internal_add_timer 0.76% [kernel] [k] timerfn We probably should have a cached value for nohz full in the per cpu bases as well to avoid the cpumask check. The base cache line is hot already, the cpumask not necessarily. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Joonwoo Park <joonwoop@codeaurora.org> Cc: Wenbo Wang <wenbo.wang@memblaze.com> Link: http://lkml.kernel.org/r/20150526224512.207378134@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-06-19 15:18:28 +02:00
Thomas Gleixner	bc7a34b8b9	timer: Reduce timer migration overhead if disabled ... Eric reported that the timer_migration sysctl is not really nice performance wise as it needs to check at every timer insertion whether the feature is enabled or not. Further the check does not live in the timer code, so we have an extra function call which checks an extra cache line to figure out that it is disabled. We can do better and store that information in the per cpu (hr)timer bases. I pondered to use a static key, but that's a nightmare to update from the nohz code and the timer base cache line is hot anyway when we select a timer base. The old logic enabled the timer migration unconditionally if CONFIG_NO_HZ was set even if nohz was disabled on the kernel command line. With this modification, we start off with migration disabled. The user visible sysctl is still set to enabled. If the kernel switches to NOHZ migration is enabled, if the user did not disable it via the sysctl prior to the switch. If nohz=off is on the kernel command line, migration stays disabled no matter what. Before: 47.76% hog [.] main 14.84% [kernel] [k] _raw_spin_lock_irqsave 9.55% [kernel] [k] _raw_spin_unlock_irqrestore 6.71% [kernel] [k] mod_timer 6.24% [kernel] [k] lock_timer_base.isra.38 3.76% [kernel] [k] detach_if_pending 3.71% [kernel] [k] del_timer 2.50% [kernel] [k] internal_add_timer 1.51% [kernel] [k] get_nohz_timer_target 1.28% [kernel] [k] __internal_add_timer 0.78% [kernel] [k] timerfn 0.48% [kernel] [k] wake_up_nohz_cpu After: 48.10% hog [.] main 15.25% [kernel] [k] _raw_spin_lock_irqsave 9.76% [kernel] [k] _raw_spin_unlock_irqrestore 6.50% [kernel] [k] mod_timer 6.44% [kernel] [k] lock_timer_base.isra.38 3.87% [kernel] [k] detach_if_pending 3.80% [kernel] [k] del_timer 2.67% [kernel] [k] internal_add_timer 1.33% [kernel] [k] __internal_add_timer 0.73% [kernel] [k] timerfn 0.54% [kernel] [k] wake_up_nohz_cpu Reported-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Joonwoo Park <joonwoop@codeaurora.org> Cc: Wenbo Wang <wenbo.wang@memblaze.com> Link: http://lkml.kernel.org/r/20150526224512.127050787@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-06-19 15:18:28 +02:00
Peter Zijlstra	887d9dc989	hrtimer: Allow hrtimer::function() to free the timer ... Currently an hrtimer callback function cannot free its own timer because __run_hrtimer() still needs to clear HRTIMER_STATE_CALLBACK after it. Freeing the timer would result in a clear use-after-free. Solve this by using a scheme similar to regular timers; track the current running timer in hrtimer_clock_base::running. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: ktkhai@parallels.com Cc: rostedt@goodmis.org Cc: juri.lelli@gmail.com Cc: pang.xunlei@linaro.org Cc: wanpeng.li@linux.intel.com Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: umgwanakikbuti@gmail.com Link: http://lkml.kernel.org/r/20150611124743.471563047@infradead.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-06-19 00:09:56 +02:00
Oleg Nesterov	c04dca02bc	hrtimer: Remove HRTIMER_STATE_MIGRATE ... I do not understand HRTIMER_STATE_MIGRATE. Unless I am totally confused it looks buggy and simply unneeded. migrate_hrtimer_list() sets it to keep hrtimer_active() == T, but this is not enough: this can fool, say, hrtimer_is_queued() in dequeue_signal(). Can't migrate_hrtimer_list() simply use HRTIMER_STATE_ENQUEUED? This fixes the race and we can kill STATE_MIGRATE. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: ktkhai@parallels.com Cc: rostedt@goodmis.org Cc: juri.lelli@gmail.com Cc: pang.xunlei@linaro.org Cc: wanpeng.li@linux.intel.com Cc: umgwanakikbuti@gmail.com Link: http://lkml.kernel.org/r/20150611124743.072387650@infradead.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-06-19 00:09:56 +02:00
Borislav Petkov	d711b8b30c	hrtimers: Make sure hrtimer_resolution is unsigned int ... ... in the !CONFIG_HIGH_RES_TIMERS case too. And thus fix warnings like this one: net/sched/sch_api.c: In function ‘psched_show’: net/sched/sch_api.c:1891:6: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 6 has type ‘long int’ [-Wformat=] (u32)NSEC_PER_SEC / hrtimer_resolution); Signed-off-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/1433583000-32090-1-git-send-email-bp@alien8.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de>	2015-06-08 15:46:06 +02:00
Thomas Gleixner	61699e1307	hrtimer: Remove hrtimer_start() return value ... No user was ever interested whether the timer was active or not when it was started. All abusers of the return value are gone, so get rid of it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203503.483556394@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:52 +02:00
Thomas Gleixner	02a171af1a	hrtimer: Make hrtimer_start() a inline wrapper ... No point for an extra export just to set the extra argument of hrtimer_start_range_ns() to 0. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203502.808544539@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:51 +02:00
Thomas Gleixner	58f1f803f1	hrtimer: Get rid of __hrtimer_start_range_ns() ... No more callers. Remove the leftovers. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203502.707871492@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:51 +02:00
Thomas Gleixner	c1ad348b45	tick: Nohz: Rework next timer evaluation ... The evaluation of the next timer in the nohz code is based on jiffies while all the tick internals are nano seconds based. We have also to convert hrtimer nanoseconds to jiffies in the !highres case. That's just wrong and introduces interesting corner cases. Turn it around and convert the next timer wheel timer expiry and the rcu event to clock monotonic and base all calculations on nanoseconds. That identifies the case where no timer is pending clearly with an absolute expiry value of KTIME_MAX. Makes the code more readable and gets rid of the jiffies magic in the nohz code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Link: http://lkml.kernel.org/r/20150414203502.184198593@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:50 +02:00
Thomas Gleixner	c6eb3f70d4	hrtimer: Get rid of hrtimer softirq ... hrtimer softirq is a leftover from the initial implementation and serves only the purpose to handle the enqueueing of already expired timers in the high resolution timer mode. We discussed whether we change the return value and force all start sites to handle that the timer is already expired, but that would be a Herculean task and I'm not sure whether its a good idea to enforce that handling on everyone. A simpler solution is to enforce a timer interrupt instead of raising and scheduling a softirq. Just use the existing infrastructure to do so and remove all the softirq leftovers. The HRTIMER softirq enum is now unused, but kept around because trace parsers rely on the existing numbering. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203501.840834708@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:50 +02:00
Thomas Gleixner	895bdfa793	hrtimer: Keep pointer to first timer and simplify __remove_hrtimer() ... __remove_hrtimer() needs to evaluate the expiry time to figure out whether the timer which is removed is eventually the first expiring timer on the cpu. Keep a pointer to it, which is lazily updated, so we can avoid the evaluation dance and retrieve the information from there. Generates slightly better code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203501.752838019@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:50 +02:00
Thomas Gleixner	b8e38413ac	hrtimer: Align the hrtimer clock bases as well ... We don't use cacheline_align here because that might waste lot of space on 32bit machine with 64 bytes cachelines and on 64bit machines with 128 bytes cachelines. The size of struct hrtimer_clock_base is 64byte on 64bit and 32byte on 32bit machines. So we utilize the cache lines proper. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203501.498165771@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:49 +02:00
Thomas Gleixner	6d9a141139	hrtimer: Cache line align the hrtimer cpu base ... We really want that data structure to start at a cache line boundary. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203501.417597627@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:49 +02:00
Thomas Gleixner	e19ffe8be2	hrtimer: Use bits for various boolean indicators ... No point in wasting 12 byte storage space. Generates better code as well. Text size reduction: x8664 -64, i386 -16, ARM -132, ARM64 -0, power64 -48 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203501.227955358@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:49 +02:00
Thomas Gleixner	868a3e915f	hrtimer: Make offset update smarter ... On every tick/hrtimer interrupt we update the offset variables of the clock bases. That's silly because these offsets change very seldom. Add a sequence counter to the time keeping code which keeps track of the offset updates (clock_was_set()). Have a sequence cache in the hrtimer cpu bases to evaluate whether the offsets must be updated or not. This allows us later to avoid pointless cacheline pollution. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: John Stultz <john.stultz@linaro.org> Link: http://lkml.kernel.org/r/20150414203501.132820245@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org>	2015-04-22 17:06:49 +02:00
Thomas Gleixner	21d6d52a1b	hrtimer: Get rid of softirq time ... The softirq time field in the clock bases is an optimization from the early days of hrtimers. It provides a coarse "jiffies" like time mostly for self rearming timers. But that comes with a price: - Larger code size - Extra storage space - Duplicated functions with really small differences The benefit of this is optimization is marginal for contemporary systems. Consolidate everything on the high resolution timer implementation. This makes further optimizations possible. Text size reduction: x8664 -95, i386 -356, ARM -148, ARM64 -40, power64 -16 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203501.039977424@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:49 +02:00
Thomas Gleixner	a6ffebce7f	hrtimer: Make the statistics fields smaller ... No point in having usigned long for /proc/timer_list statistics. Make them unsigned int. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203500.959773467@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:49 +02:00
Thomas Gleixner	056a3cacbc	hrtimer: Get rid of hrtimer_get_res() ... The resolution is directly accessible now. So its simpler just to fill in the values of the timespec and be done with it. Text size reduction (combined with "hrtimer: Get rid of the resolution field in hrtimer_clock_base"): x8664 -61, i386 -221, ARM -60, power64 -48 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203500.879888080@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:49 +02:00
Thomas Gleixner	398ca17fb5	hrtimer: Get rid of the resolution field in hrtimer_clock_base ... The field has no value because all clock bases have the same resolution. The resolution only changes when we switch to high resolution timer mode. We can evaluate that from a single static variable as well. In the !HIGHRES case its simply a constant. Export the variable, so we can simplify the usage sites. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20150414203500.645454122@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:48 +02:00
Thomas Gleixner	91e5a2170e	hrtimer: Document hrtimer_forward[_now]() proper ... Document the calling context conditions. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20150413210035.178751779@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-04-22 17:06:48 +02:00
Thomas Gleixner	9bc7491906	hrtimer: Prevent stale expiry time in hrtimer_interrupt() ... hrtimer_interrupt() has the following subtle issue: hrtimer_interrupt() lock(cpu_base); expires_next = KTIME_MAX; expire_timers(CLOCK_MONOTONIC); expires = get_next_timer(CLOCK_MONOTONIC); if (expires < expires_next) expires_next = expires; expire_timers(CLOCK_REALTIME); unlock(cpu_base); wakeup() hrtimer_start(CLOCK_MONOTONIC, newtimer); lock(cpu_base(); expires = get_next_timer(CLOCK_REALTIME); if (expires < expires_next) expires_next = expires; So because we already evaluated the next expiring timer of CLOCK_MONOTONIC we ignore that the expiry time of newtimer might be earlier than the overall next expiry time in hrtimer_interrupt(). To solve this, remove the caching of the next expiry value from hrtimer_interrupt() and reevaluate all active clock bases for the next expiry value. To avoid another code duplication, create a shared evaluation function and use it for hrtimer_get_next_event(), hrtimer_force_reprogram() and hrtimer_interrupt(). There is another subtlety in this mechanism: While hrtimer_interrupt() is running, we want to avoid to touch the hardware device because we will reprogram it anyway at the end of hrtimer_interrupt(). This works nicely for hrtimers which get rearmed via the HRTIMER_RESTART mechanism, because we drop out when the callback on that CPU is running. But that fails, if a new timer gets enqueued like in the example above. This has another implication: While hrtimer_interrupt() is running we refuse remote enqueueing of timers - see hrtimer_interrupt() and hrtimer_check_target(). hrtimer_interrupt() tries to prevent this by setting cpu_base->expires to KTIME_MAX, but that fails if a new timer gets queued. Prevent both the hardware access and the remote enqueue explicitely. We can loosen the restriction on the remote enqueue now due to reevaluation of the next expiry value, but that needs a seperate patch. Folded in a fix from Vignesh Radhakrishnan. Reported-and-tested-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Based-on-patch-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: vigneshr@codeaurora.org Cc: john.stultz@linaro.org Cc: viresh.kumar@linaro.org Cc: fweisbec@gmail.com Cc: cl@linux.com Cc: stuart.w.hayes@gmail.com Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1501202049190.5526@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2015-01-23 12:13:20 +01:00
Thomas Gleixner	8b094cd03b	time: Consolidate the time accessor prototypes ... Right now we have time related prototypes in 3 different header files. Move it to a single timekeeping header file and move the core internal stuff into a core private header. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>	2014-07-23 10:17:54 -07:00
Thomas Gleixner	166afb6451	ktime: Sanitize ktime_to_us/ms conversion ... With the plain nanoseconds based ktime_t we can simply use ktime_divns() instead of going through loops and hoops of timespec/timeval conversion. Reported-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>	2014-07-23 10:16:50 -07:00
John Stultz	76f4108892	hrtimer: Cleanup hrtimer accessors to the timekepeing state ... Rather then having two similar but totally different implementations that provide timekeeping state to the hrtimer code, try to unify the two implementations to be more simliar. Thus this clarifies ktime_get_update_offsets to ktime_get_update_offsets_now and changes get_xtime... to ktime_get_update_offsets_tick. Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>	2014-07-23 10:16:50 -07:00
Viresh Kumar	cddd02489f	hrtimer: Store cpu-number in struct hrtimer_cpu_base ... In lowres mode, hrtimers are serviced by the tick instead of a clock event. Now it works well as long as the tick stays periodic but we must also make sure that the hrtimers are serviced in dynticks mode. Part of that job consist in kicking a dynticks hrtimer target in order to make it reconsider the next tick to schedule to correctly handle the hrtimer's expiring time. And that part isn't handled by the hrtimers subsystem. To prepare for fixing this, we need __hrtimer_start_range_ns() to be able to resolve the CPU target associated to a hrtimer's object 'cpu_base' so that the kick can be centralized there. So lets store it in the 'struct hrtimer_cpu_base' to resolve the CPU without overhead. It is set once at CPU's online notification. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1403393357-2070-4-git-send-email-fweisbec@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2014-06-23 11:23:47 +02:00
Viresh Kumar	e2e680fb75	hrtimer: Rearrange comments in the order struct members are declared ... Rearrange kernel doc comments in the order members of struct hrtimer are declared. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: linaro-kernel@lists.linaro.org Cc: fweisbec@gmail.com Cc: trivial@kernel.org Link: http://lkml.kernel.org/r/1db1a3cfbe8a9ea49396af75c6ac04a2e67e3ab0.1395226248.git.viresh.kumar@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2014-03-20 12:35:45 +01:00
John Stultz	90adda98b8	hrtimer: Add hrtimer support for CLOCK_TAI ... Add hrtimer support for CLOCK_TAI, as well as posix timer interfaces. Signed-off-by: John Stultz <john.stultz@linaro.org>	2013-03-22 16:19:59 -07:00
Thomas Gleixner	f6c06abfb3	timekeeping: Provide hrtimer update function ... To finally fix the infamous leap second issue and other race windows caused by functions which change the offsets between the various time bases (CLOCK_MONOTONIC, CLOCK_REALTIME and CLOCK_BOOTTIME) we need a function which atomically gets the current monotonic time and updates the offsets of CLOCK_REALTIME and CLOCK_BOOTTIME with minimalistic overhead. The previous patch which provides ktime_t offsets allows us to make this function almost as cheap as ktime_get() which is going to be replaced in hrtimer_interrupt(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Prarit Bhargava <prarit@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: John Stultz <johnstul@us.ibm.com> Link: http://lkml.kernel.org/r/1341960205-56738-7-git-send-email-johnstul@us.ibm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2012-07-11 23:34:39 +02:00
John Stultz	f55a6faa38	hrtimer: Provide clock_was_set_delayed() ... clock_was_set() cannot be called from hard interrupt context because it calls on_each_cpu(). For fixing the widely reported leap seconds issue it is necessary to call it from hard interrupt context, i.e. the timer tick code, which does the timekeeping updates. Provide a new function which denotes it in the hrtimer cpu base structure of the cpu on which it is called and raise the hrtimer softirq. We then execute the clock_was_set() notificiation from softirq context in run_hrtimer_softirq(). The hrtimer softirq is rarely used, so polling the flag there is not a performance issue. [ tglx: Made it depend on CONFIG_HIGH_RES_TIMERS. We really should get rid of all this ifdeffery ASAP ] Signed-off-by: John Stultz <johnstul@us.ibm.com> Reported-by: Jan Engelhardt <jengelh@inai.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Prarit Bhargava <prarit@redhat.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1341960205-56738-2-git-send-email-johnstul@us.ibm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2012-07-11 23:34:37 +02:00
Vitaliy Ivanov	4d258b25d9	Fix some kernel-doc warnings ... Fix 'make htmldocs' warnings: Warning(/include/linux/hrtimer.h:153): No description found for parameter 'clockid' Warning(/include/linux/device.h:604): Excess struct/union/enum/typedef member 'of_match' description in 'device' Warning(/include/net/sock.h:349): Excess struct/union/enum/typedef member 'sk_rmem_alloc' description in 'sock' Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2011-06-27 16:06:19 -07:00
Thomas Gleixner	68fa61c026	hrtimers: Reorder clock bases ... The ordering of the clock bases is historical due to the CLOCK_REALTIME and CLOCK_MONOTONIC constants. Now the hrtimer bases have their own enumeration due to the gap between CLOCK_MONOTONIC and CLOCK_BOOTTIME. So we can be more clever as most timers end up on the CLOCK_MONOTONIC base due to the virtue of POSIX declaring that relative CLOCK_REALTIME timers are not affected by time changes. In desktop environments this is slowly changing as applications switch to absolute timers, but I've observed empty CLOCK_REALTIME bases often enough. There is no performance penalty or overhead when CLOCK_REALTIME timers are active, but in case they are not we don't skip over a full cache line. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>	2011-05-23 13:59:54 +02:00
Thomas Gleixner	ab8177bc53	hrtimers: Avoid touching inactive timer bases ... Instead of iterating over all possible timer bases avoid it by marking the active bases in the cpu base. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>	2011-05-23 13:59:54 +02:00
Thomas Gleixner	f24444b01b	hrtimers: Make struct hrtimer_cpu_base layout less stupid ... In the HIGHRES=y case we access the members at the end of struct hrtimer_cpu_base first and then the one at the beginning. Move the hrtimer data to front, so we have linear progressing access. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>	2011-05-23 13:59:53 +02:00
Thomas Gleixner	9ec2690758	timerfd: Manage cancelable timers in timerfd ... Peter is concerned about the extra scan of CLOCK_REALTIME_COS in the timer interrupt. Yes, I did not think about it, because the solution was so elegant. I didn't like the extra list in timerfd when it was proposed some time ago, but with a rcu based list the list walk it's less horrible than the original global lock, which was held over the list iteration. Requested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>	2011-05-23 13:59:53 +02:00
Thomas Gleixner	99ee5315da	timerfd: Allow timers to be cancelled when clock was set ... Some applications must be aware of clock realtime being set backward. A simple example is a clock applet which arms a timer for the next minute display. If clock realtime is set backward then the applet displays a stale time for the amount of time which the clock was set backwards. Due to that applications poll the time because we don't have an interface. Extend the timerfd interface by adding a flag which puts the timer onto a different internal realtime clock. All timers on this clock are expired whenever the clock was set. The timerfd core records the monotonic offset when the timer is created. When the timer is armed, then the current offset is compared to the previous recorded offset. When it has changed, then timerfd_settime returns -ECANCELED. When a timer is read the offset is compared and if it changed -ECANCELED returned to user space. Periodic timers are not rearmed in the cancelation case. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Chris Friesen <chris.friesen@genband.com> Tested-by: Kay Sievers <kay.sievers@vrfy.org> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Davide Libenzi <davidel@xmailserver.org> Reviewed-by: Alexander Shishkin <virtuoso@slind.org> Link: http://lkml.kernel.org/r/%3Calpine.LFD.2.02.1104271359580.3323%40ionos%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2011-05-02 21:39:15 +02:00
Thomas Gleixner	b12a03ce48	hrtimers: Prepare for cancel on clock was set timers ... Make clock_was_set() unconditional and rename hres_timers_resume to hrtimers_resume. This is a preparatory patch for hrtimers which are cancelled when clock realtime was set. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2011-05-02 21:37:58 +02:00
Thomas Gleixner	53370d2e8c	hrtimer: Update hrtimer->state documentation ... We changed some of the state bits and combinations thereof over time, but never updated the documentation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2011-03-10 19:15:58 +01:00
John Stultz	70a08cca12	timers: Add CLOCK_BOOTTIME hrtimer base ... CLOCK_MONOTONIC stops while the system is in suspend. This is because to applications system suspend is invisible. However, there is a growing set of applications that are wanting to be suspend-aware, but do not want to deal with the complications of CLOCK_REALTIME (which might jump around if settimeofday is called). For these applications, I propose a new clockid: CLOCK_BOOTTIME. CLOCK_BOOTTIME is idential to CLOCK_MONOTONIC, except it also includes any time spent in suspend. This patch add hrtimer base for CLOCK_BOOTTIME, using get_monotonic_boottime/ktime_get_boottime, to allow in kernel users to set timers against. CC: Jamie Lokier <jamie@shareable.org> CC: Thomas Gleixner <tglx@linutronix.de> CC: Alexander Shishkin <virtuoso@slind.org> CC: Arve Hjønnevåg <arve@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org>	2011-02-21 12:53:08 -08:00
John Stultz	abb3a4ea2e	time: Introduce get_monotonic_boottime and ktime_get_boottime ... This adds new functions that return the monotonic time since boot (in other words, CLOCK_MONOTONIC + suspend time). CC: Jamie Lokier <jamie@shareable.org> CC: Thomas Gleixner <tglx@linutronix.de> CC: Alexander Shishkin <virtuoso@slind.org> CC: Arve Hjønnevåg <arve@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org>	2011-02-21 12:53:05 -08:00
John Stultz	e06383db9e	hrtimers: extend hrtimer base code to handle more then 2 clockids ... The hrtimer code is written mainly with CLOCK_REALTIME and CLOCK_MONOTONIC in mind. These are clockids 0 and 1 resepctively. However, if we are to introduce any new hrtimer bases, using new clockids, we have to skip the cputimers (clockids 2,3) as well as other clockids that may not impelement timers. This patch adds a little bit of indirection between the clockid and the base, so that we can extend the base by one when we add a new clockid at number 7 or so. CC: Jamie Lokier <jamie@shareable.org> CC: Thomas Gleixner <tglx@linutronix.de> CC: Alexander Shishkin <virtuoso@slind.org> CC: Arve Hjønnevåg <arve@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org>	2011-02-21 12:53:04 -08:00
Randy Dunlap	175881db89	hrtimer.h: fix kernel-doc warning ... Fix new kernel-doc notation warning in hrtimer.h: Warning(include/linux/hrtimer.h:150): Excess struct/union/enum/typedef member 'first' description in 'hrtimer_clock_base' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2011-01-10 07:38:53 -08:00
John Stultz	998adc3dda	hrtimers: Convert hrtimers to use timerlist infrastructure ... Converts the hrtimer code to use the new timerlist infrastructure Signed-off-by: John Stultz <john.stultz@linaro.org> LKML Reference: <1290136329-18291-3-git-send-email-john.stultz@linaro.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> CC: Alessandro Zummo <a.zummo@towertech.it> CC: Thomas Gleixner <tglx@linutronix.de> CC: Richard Cochran <richardcochran@gmail.com>	2010-12-10 11:54:35 -08:00
Yong Zhang	5e4f083f78	hrtimer: Remove stale comment on curr_timer ... curr_timer doesn't resident in struct hrtimer_cpu_base anymore. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> LKML-Reference: <1287892253-2587-1-git-send-email-yong.zhang0@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>	2010-11-10 12:39:52 +01:00