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Commit 0e153e1b authored by ckosuru's avatar ckosuru
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Merge commit '6b42a54e' into dev/msm-4.14-display



* commit '6b42a54e':
  defconfig: sa2150p: enable helper APIs for sideband notifications
  wcnss: Register wlan driver ops for SMD notification
  spi: spi_qsd: Add Shared EE property check for spi
  documentation: bindings: spi_qsd: Add shared ee dtsi flag
  rpmsg: glink: Changing interrupt trigger option
  arm64: config: Enable Glink for GVM
  ARM: dts: msm: change display-label to display-type for DSI0
  ARM: dts: qcom: add video device tree support for sdm429w
  ARM64: dts: msm: Add wakeup support for sdx-ext-ipc devices
  drivers: soc: sdx_ext_ipc: Add wakeup support from system suspend
  ARM: dts: msm: change HAB VMID to 3 for single LV GVM
  msm: ipahal: Add uCP exception case for status pkt
  genetlink: remove genl_bind
  net: stmmac: Set DOMAIN_ATTR_GEOMETRY for smmu fastmap
  msm: kgsl: Put a keep alive vote before updating CP_RB_WPTR
  rpmsg: qcom_glink_bgcom: Correct the copyright licence
  msm: ep_pcie: Add KPI marker and log for PCIe link init
  msm: mhi_dev: Add KPI marker and log for mhi init
  serial: msm_geni_serial: Initialize the variables before access
  mailbox: Add new mailbox for gvm
  hwspinlock: Add support to parse spin lock id
  clk: qcom: mdss: update dsi 12nm clock driver
  mm/swapfile.c: move inode_lock out of claim_swapfile
  ARM: dts: qcom: update display dts nodes for sdm429w WTP
  soc: qcom: dcc_v2: Add NULL check before using dcc driver data
  mm/memblock.c: fix bug in early_dyn_memhotplug
  ARM: dts: sa2150p: enable BLSP0 UART and free up GPIO 83
  ARM: dts: sa2150p: add support for NAND based SOM
  ARM: dts: sa2145p: add support for NAND based SOM
  defconfig: sa515m: enable helper APIs for sideband notifications
  soc: qcom: sideband: add helper APIs for sideband notifications
  clk: qcom: smd_rpm: Change rpm clk_id for SDM429
  defconfig: sdm429: Add MPROC GLINK defconfig for SDM429W
  ARM: dts: sa2145p: add msm-id for sa2145p chip
  ARM: dts: sa2150p: remove incorrect msm-id inclusion
  ARM: dts: msm: Update mpss_adsp carved memory for sa515m platform
  ARM: msm: dts: enable touch node for wearable
  ARM: dts: qcom: vm: Add device nodes for second AFE rx and proxy tx devices
  ARM: dts: msm: Disable BAM mode for spi dtsi node
  ARM: dts: msm: Add glink bgcom dtsi node for sdm429
  rpmsg: Add glink-bgcom driver for rpmsg framework
  tmc-etr: Add ETR status check in usb_notifier
  defconfig: sdm429: add display configs
  spi: spi-geni-qcom: Don't initialize GSI channels for FIFO/SE_DMA mode
  ARM: dts: Add NFC device node for SDM429W
  clk: qcom: smd_rpm: Add bb_clk_pin for SDM429
  ARM: msm: dts: Enable restarting usb host mode in HS for SDM660
  USB: pd: Restart host mode in high speed if no usb3 & dp concurrency
  ARM: dts: Enable HMP for SA8195, SA8155 and SA6155 VM
  ARM: dts: msm: Add SPM control for sdm429w
  clk: qcom: cpu-sdm: Add spm control support
  defconfig: sdm: Add support for CPU clocks
  ARM: dts: msm: Add CPU clock support for sdm429w
  clk: qcom: cpu-sdm: Add cpu clock driver for SDM
  ARM: dts: msm: add gpr and gecko drivers to DT
  ARM: dts: msm: add display related dt nodes on QCS410 device
  msm: ais: acquire init_frame_drop from userspace
  defconfig: Enable qcom_sps_dma driver for sdm429w
  i2c-msm-v2: Make init call as module_init for i2c driver
  usb: host: xhci-plat: Fix IMOD configuration from sysfs
  ARM: dts: msm: Add GPU support for sdm429w
  ARM: dts: msm: Add to distinguish NO or NC connection in USB Type-C
  msm: ipa: Fix updating the doobell for WDI3
  bindings: qpnp-smb5: add property to show fake charging status
  ARM: dts: msm: Add wcnss node for sdm429
  defconfig: sa2150p: Enable SDX_EXT_IPC
  msm: kgsl: Add A504 GPU support for SDM429
  defconfig: sa2150p-nand: Enable SDX_EXT_IPC
  ARM: dts: msm: Remove the extra double quotes in the model name
  clk: qcom: Add enable_safe_config for gfx3d_clk_src
  ARM: dts: msm: Add bg spi and bg daemon nodes
  coresight-tmc-etr: Add QDSS IPA bam connection support
  ARM: dts: msm: Add blackghost pil node
  ARM: dts: msm: Define adsp loader node
  defconfig: sdm429: Add pil configs to sdm429
  ARM: dts: msm: add device tree for EAP connection through ethernet
  power: qpnp-smb5: add property to show fake charging status
  power: smb5-lib: Show unknown battery status for debug battery
  arm: dts: msm: Add dt entry to enable geometry mapping in stmmac
  ARM: dts: msm: Add multiport USB controller and PHYs on sdmshrike
  usb: dwc3: Write necessary registers for dual port enablement
  usb: dwc3-msm: Add support for 2nd set of wakeup IRQs
  usb: dwc3: Add support for 4 PHYs for dual port controller
  qseecom: register qseecom client with msm bus driver
  msm: ais: remove cci reset for specified master during cci initialization
  ARM: dts: msm: Align with the gpio name change in driver
  drivers: soc: sdx_ext_ipc: Give generic name for gpios
  drivers: soc: sdx_ext_ipc: Make gpio DT entries optional
  i2c: i2c-qcom-geni: Enhance IPC logging debug infra in I2C
  ASoC: tfa98xx: Update profile info properly
  ASoC: tfa98xx: Fix type casting error
  ASoC: tfa98xx: Add tfa98xx smart PA driver
  msm: sps: Use iomem attribute for base address
  msm: mhi_dev: Do not flush events to host if channel is stopped
  ARM: dts: msm: add tzlog device node for sdm429
  fs: namespace: Fix use-after-free in unmount
  msm: ais: fix cci read return value issue
  ARM : dts : support realtek r8125 ethernet driver
  msm: ethernet : smmu: enable qcom smmu
  dma-mapping-fast: Fix erroneous MAIR idx calculation
  sdm429w: modify copy right year as per guidelines
  pinctrl: qcom: Clear status bit on irq_unmask
  Revert "Revert "ANDROID: security,perf: Allow further restriction of perf_event_open""
  defconfig: enable cpufreq stats config
  drivers: soc: qcom: Add bg pil driver to 4.14
  clk: qcom: rcg2: Fix possible null pointer dereference
  usb: misc: Add support for diag bridging over mdm_data_bridge
  ARM: dts: msm: Add pil nodes to sdm429
  msm: kernel: add bgcom interface header file
  ARM: dts: msm: Add trace source coresight nodes for sdmshrike
  ARM: dts: msm: Enable CTIs and TPDMs for sdmshrike
  msm: kernel: add bgcom interface header file
  ARM: dts: msm: Fix crypto tests
  ARM: dts: msm: Add support for various subtype of IDP board for QCM/S6125
  ARM: msm: Hardware name correction for SDM429W
  ARM: dts: msm: enable smmu for sdm429
  ARM: dts: msm: Disable the secure mem region for SDM429
  drivers: thermal: Force notify thermal to re-evaluate TSENS sensors
  msm: set config for ADSPRPC and add dtsi node
  spi: spi-geni-qcom: Check for zero length transfer
  spi: spi-geni-qcom: Reset the dma engine on failure
  cpufreq: stats: Change return type of cpufreq_stats_update() as void
  cpufreq: stats: Handle the case when trans_table goes beyond PAGE_SIZE
  drivers: thermal: Re-initialize TSENS controller interrupt configuration
  Early Services: init: fs:  synchronize Early Services with init
  soc: qcom: dcc_v2: Add PM callbacks to support hibernation
  atlantic forwarding driver v1.1.7
  ARM: dts: msm: Add support for DT overlay QCS410
  platform: msm: qcom-geni-se: Enable SSC QUP SE clks before SCM call
  dfc: fix null pointer access
  dfc: add stall recovery timer
  regulator: qpnp-lcdb: Disable step voltage ramp for PM8150L V3
  msm: mhi_dev: Increase size of ipa_clnt_hndl array
  sched: core_ctl: Fix possible uninitialized variable
  msm: mhi_dev: Disable IPA DMA during MHI cleanup
  ARM: dts: msm: Remove camera pil memory
  defconfig: sdm429w: Enable BGCOM drivers
  wcnss: validate build version response correctly
  msm: ais: fix 6155 crop issue on mini IFE driver
  msm: ipa: Support hardware accelerated DIAG over qdss
  msm: kgsl: Do not double free pages in kgsl_memdesc
  defconfig: sa2150p: remove IEEE 802.11 support
  defconfig: sa2150p: remove bluetooth driver not required
  wcnss: Export SMD channel close API for wlan driver removal
  wcnss: Export wcnss smd tx method
  defconfig: sa2150p-nand: Add 3D Graphics driver
  msm: camera: Update CSIPHY/CSID v3.5 registers
  ARM: dts: msm: Add audio support
  ARM: dts: msm: Add qseecom node for sdm429
  qseecom: use legacy command for bgapp
  sched: Improve the scheduler
  arm: dts: msm: Add dt entry to enable geometry mapping in EMAC
  ARM: dts: msm: Add 1.8v override for SA515M telematics CDP
  staging: android: ion: Add support for Carveout allocations in ion_alloc
  soc: qcom: Add bgcom driver for sdm429w
  ARM: dts: msm: Remove the pil-force-shutdown flag
  msm: ipa3: Fix to map the npn phy address only once
  ARM: dts: msm: Add support to enable/disable fastmap for each CB
  msm: ipa3: Add support to fastmap/geometry for each CB
  msm: mhi_dev: update NHWER after M0 from host
  msm: camera: Do CSID reset during CSID release
  msm: vidc: Update VP9 minimum buffer count
  ARM: dts: msm: Add rmtfs_sharedmem support for SDM429W
  profiler: Add a communication interface between userspace and tz services
  ARM: dts: msm: enable pmic alarm thermal zone mitigation for Gen3 platform
  ARM: dts: msm: update gpu thermal zone threshold for auto Gen 3 platforms
  ARM: dts: msm: Remove low temperature monitor thermal zones for SA8195P
  defconfig: msm: Add PCIe driver for sdxprarie
  ARM: dts: msm: Add PCIe switch driver for sdxprairie
  pci: switch: Add PCIe switch driver
  soc: qcom: Remove WQ_MEM_RECLAIM from rmnet_ps_wq
  msm: camera: Remove frame id and timestamp checks for spurious SOF
  msm: camera: isp: Flush Pending list after stop HW to avoid race
  firmware: qcom: Reinitialize the ring buffer log pointer
  msm: sps: SPS driver changes for dummy BAM connect
  defconfig: trinket: Enable dm-snapshot
  clk: qcom: Add debug clk support for SDM660
  msm: ipa3: Send actual DL flt rule to Q6
  cnss2: Add synchronized force wake support
  ARM: dts: msm: Add debugcc support for SDM660
  defconfig: sdm429: Add CONFIG_MSM_TZ_SMMU defconfig for sdm429
  power: smb2: Enable read/writing of Type-C Rp value
  iommu/arm-smmu: Add MSM_TZ_SMMU support on SDM429W
  ARM: msm: dts: Set usb dvdd voltage range to [0.8v 0.8v] for sdm429
  usb: dwc3: Add boundary check while traversing the TRB ring buffer
  clk: qcom: sdm429w: Update the gcc/debugcc for sdm429w
  soc: qcom: hgsl: Update hfi command data structure
  ARM: dts: msm: add xo_clk for DP display on sm8150
  ARM: dts: msm: add link clk rcg entry on sm8150
  rpmsg: qcom_smd: Add SET signal support
  msm: camera: isp: Fix race condition b/w add and apply req
  ARM: dts: qcom: Correct adsp_smsm node interrupt number
  ARM: dts: msm: correct the filenames in Makefile
  usb: gadget: f_ipc: Fix race between ipc_free_inst and ipc_close
  Documentation: Add documentation for audio drivers
  char: virtio_fastrpc: Add profile mode support
  mhi: core: add mhi_device_get_sync_atomic() to wait until M0
  coresight-tmc: Add NULL check before using pointer 'etr_buf->ops'
  coresight: perf: Add NULL check before using pointer sink
  ARM: dts: msm: Enable Perst Based PCIe Enumeration for SA515M
  ARM: dts: msm: Add PCIe reset support for QCS405
  taskstats: extended taskstats2 with acct fields
  ARM: DTS: msm: Update DP PLL string for SDM660
  ARM: dts: msm: Add STMMAC node for qcs405
  ipa3: Wait for IPA post init for 1000 msec before return
  mtd: msm_qpic_nand: check for page_erased bit along with op_err
  ARM: dts: msm: Update display ram dump memory size
  clk: Add prepare lock in clk_populate_clock_opp_table
  msm: ep_pcie: Vote for pipe clk for early init case
  usb: gadget: f_qdss: Allocate one string ID for all instances
  dma-buf: fix race while reading the dma_buf in dmabuffs_dname
  usb: gadget: Reset string ids upon unbind
  ARM: dts: msm: add override nodes for SA515M CDP board
  msm: ep_pcie: Update bit to read if the PHY is ready
  defconfig: sa2150p: Enable STMMAC driver
  net: stmmac: Fix type casting for tlmm addr
  net: stmmac: read descriptor count for IPA rx/tx from dt entry
  USB: f_mtp: Revert Avoid queuing of receive_file_work for 0 length
  ARM: dts: msm: Add a flag to enable TSENS re-init
  ARM: dts: msm: update to memory map v1 for QCS610 and QCS410
  ARM: dts: msm: Add QDSS IPA bam connection config for sdxprairie
  wcnss: Include header file for show_stack()
  net: stmmac: dwmac4_prog_mtl_tx_algorithms() missing write operation
  net: stmmac: Disable flow ctrl for RX AVB queues and enable TX AVB queues
  Revert "ARM: dts: msm: Move pil region of ipa fws for SA8155 VM "
  input: qpnp-power-on: Add a property to force hard-reset offset
  clk: qcom: mdss: Improve logging for 10nm dsi pll
  ARM: dts: msm: Enable STM coresight node for sdmshrike
  ARM: dts: msm: Enable ddr coresight nodes for sdmshrike
  ARM: dts: msm: Enable hwevents coresight nodes for sdmshrike
  ARM: dts: msm: Add coresight nodes for sdmshrike
  net: stmmac: copyright year fix
  coresight: etx4x: sysfs: fix spinlock unlock issue
  ARM: dts: msm: Add smp2p based shutdown-ack
  ARM: dts: msm: update board-id for different linux variants
  defconfig: msm: Disable CONFIG_BUILD_ARM64_APPENDED_DTB_IMAGE flag
  ARM: dts: msm: Add pseudo port entries
  block, bfq: fix use-after-free in bfq_idle_slice_timer_body
  ARM: dts: msm: remove qdss offset for trinket
  net: stmmac: Fix reading IOMACRO por values
  mtd: msm_qpic_nand: Add a check to read an ONFI parameter page
  ARM: dts: msm: Add WLAN pin control support on sdm429w
  arm: dts: msm: set descriptor count to 512 for IPA channel
  ARM: dts: msm: Retain the copyright year
  usb: gadget: notify suspend clear to usb phy in udc
  msm: ipa: Move the QMI for mhi pipe info to modem bootup
  defconfig: Increase command line size to 2048 for SDM429 BG
  arm: Make COMMAND_LINE_SIZE a kernel config option
  ARM: dts: msm: Remove GPU min, low and svs levels for 8195
  diag: Add debug logs tracing diag mhi read and write paths
  ARM: dts: msm: Add MPROC glink related node for gvm
  soc: qcom: smem: Support to parse smem host id
  ARM: dts: msm: Remove low temperature monitor thermal zones for SA8155
  mhi: cntrl: qcom: Add EDL image to the firmware table
  ARM: dts: msm: Fix register offset to read PHY status
  msm: npu: refactor wait_for_status_ready to reduce the latency
  ARM: dts: msm: Correct pinctrl console UART setting
  arm64: dts: qcs405: Add src clk strings
  ARM: dts: msm: Add pcie1 support for sa8155 virtual machine
  clk: qcom: Add pcie1 virtio clocks for sa8155
  net: stmmac: copy from user fail handle
  usb: f_cdev: USB remote wake up feature implementation for DUN
  msm: ipa3: increase pkt ctx for cv2x rsrc grp
  rpmsg: smd: Use spinlock in tx path
  Linux 4.14.170
  perf report: Fix no libunwind compiled warning break s390 issue
  btrfs: do not zero f_bavail if we have available space
  net: Fix skb->csum update in inet_proto_csum_replace16().
  l2t_seq_next should increase position index
  seq_tab_next() should increase position index
  net/sonic: Quiesce SONIC before re-initializing descriptor memory
  net/sonic: Fix receive buffer handling
  net/sonic: Use MMIO accessors
  net/sonic: Add mutual exclusion for accessing shared state
  net: fsl/fman: rename IF_MODE_XGMII to IF_MODE_10G
  net/fsl: treat fsl,erratum-a011043
  powerpc/fsl/dts: add fsl,erratum-a011043
  qlcnic: Fix CPU soft lockup while collecting firmware dump
  r8152: get default setting of WOL before initializing
  airo: Add missing CAP_NET_ADMIN check in AIROOLDIOCTL/SIOCDEVPRIVATE
  airo: Fix possible info leak in AIROOLDIOCTL/SIOCDEVPRIVATE
  tee: optee: Fix compilation issue with nommu
  ARM: 8955/1: virt: Relax arch timer version check during early boot
  scsi: fnic: do not queue commands during fwreset
  vti[6]: fix packet tx through bpf_redirect()
  ARM: dts: am335x-boneblack-common: fix memory size
  bnxt_en: Fix ipv6 RFS filter matching logic.
  net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec
  wireless: wext: avoid gcc -O3 warning
  mac80211: Fix TKIP replay protection immediately after key setup
  cfg80211: Fix radar event during another phy CAC
  wireless: fix enabling channel 12 for custom regulatory domain
  qmi_wwan: Add support for Quectel RM500Q
  ASoC: sti: fix possible sleep-in-atomic
  igb: Fix SGMII SFP module discovery for 100FX/LX.
  ixgbe: Fix calculation of queue with VFs and flow director on interface flap
  ixgbevf: Remove limit of 10 entries for unicast filter list
  clk: mmp2: Fix the order of timer mux parents
  mac80211: mesh: restrict airtime metric to peered established plinks
  soc: ti: wkup_m3_ipc: Fix race condition with rproc_boot
  ARM: dts: beagle-x15-common: Model 5V0 regulator
  ARM: dts: sun8i: a83t: Correct USB3503 GPIOs polarity
  media: si470x-i2c: Move free() past last use of 'radio'
  cgroup: Prevent double killing of css when enabling threaded cgroup
  Bluetooth: Fix race condition in hci_release_sock()
  ttyprintk: fix a potential deadlock in interrupt context issue
  media: dvb-usb/dvb-usb-urb.c: initialize actlen to 0
  media: gspca: zero usb_buf
  media: af9005: uninitialized variable printked
  media: digitv: don't continue if remote control state can't be read
  reiserfs: Fix memory leak of journal device string
  mm/mempolicy.c: fix out of bounds write in mpol_parse_str()
  ext4: validate the debug_want_extra_isize mount option at parse time
  arm64: kbuild: remove compressed images on 'make ARCH=arm64 (dist)clean'
  tools lib: Fix builds when glibc contains strlcpy()
  PM / devfreq: Add new name attribute for sysfs
  perf c2c: Fix return type for histogram sorting comparision functions
  crypto: pcrypt - Fix user-after-free on module unload
  x86/resctrl: Fix a deadlock due to inaccurate reference
  x86/resctrl: Fix use-after-free due to inaccurate refcount of rdtgroup
  x86/resctrl: Fix use-after-free when deleting resource groups
  vfs: fix do_last() regression
  crypto: af_alg - Use bh_lock_sock in sk_destruct
  rsi: fix use-after-free on probe errors
  net_sched: ematch: reject invalid TCF_EM_SIMPLE
  usb-storage: Disable UAS on JMicron SATA enclosure
  PCI: Add DMA alias quirk for Intel VCA NTB
  atm: eni: fix uninitialized variable warning
  gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP
  net: wan: sdla: Fix cast from pointer to integer of different size
  drivers/net/b44: Change to non-atomic bit operations on pwol_mask
  spi: spi-dw: Add lock protect dw_spi rx/tx to prevent concurrent calls
  watchdog: rn5t618_wdt: fix module aliases
  watchdog: max77620_wdt: fix potential build errors
  phy: cpcap-usb: Prevent USB line glitches from waking up modem
  HID: ite: Add USB id match for Acer SW5-012 keyboard dock
  arc: eznps: fix allmodconfig kconfig warning
  zd1211rw: fix storage endpoint lookup
  rtl8xxxu: fix interface sanity check
  brcmfmac: fix interface sanity check
  ath9k: fix storage endpoint lookup
  crypto: chelsio - fix writing tfm flags to wrong place
  serial: 8250_bcm2835aux: Fix line mismatch on driver unbind
  staging: vt6656: Fix false Tx excessive retries reporting.
  staging: vt6656: use NULLFUCTION stack on mac80211
  staging: vt6656: correct packet types for CTS protect, mode.
  staging: wlan-ng: ensure error return is actually returned
  staging: most: net: fix buffer overflow
  usb: dwc3: turn off VBUS when leaving host mode
  USB: serial: ir-usb: fix IrLAP framing
  USB: serial: ir-usb: fix link-speed handling
  USB: serial: ir-usb: add missing endpoint sanity check
  rsi_91x_usb: fix interface sanity check
  orinoco_usb: fix interface sanity check
  ANDROID: cf_defconfig: Remove VIRTIO_CONSOLE
  ANDROID: cf_defconfig: removed CONFIG_CAN
  ANDROID: cf_defconfig: removed old VIRTIO configs
  ANDROID: kallsyms: strip hashes from function names with ThinLTO
  ANDROID: Incremental fs: Enable incremental-fs in cuttlefish_defconfig
  ANDROID: fix bpf jit + cfi interactions
  ANDROID: cuttlefish_defconfig: set CONFIG_IKHEADERS to y
  UPSTREAM: UAPI: ndctl: Remove use of PAGE_SIZE
  UPSTREAM: libnvdimm, namespace: make min namespace size 4K
  ANDROID: Incremental fs: Fix sparse errors
  Linux 4.14.169
  net/x25: fix nonblocking connect
  netfilter: ipset: use bitmap infrastructure completely
  bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
  md: Avoid namespace collision with bitmap API
  scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
  media: v4l2-ioctl.c: zero reserved fields for S/TRY_FMT
  libertas: Fix two buffer overflows at parsing bss descriptor
  coresight: tmc-etf: Do not call smp_processor_id from preemptible
  coresight: etb10: Do not call smp_processor_id from preemptible
  sd: Fix REQ_OP_ZONE_REPORT completion handling
  do_last(): fetch directory ->i_mode and ->i_uid before it's too late
  tracing: xen: Ordered comparison of function pointers
  scsi: RDMA/isert: Fix a recently introduced regression related to logout
  hwmon: (nct7802) Fix voltage limits to wrong registers
  Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register
  Input: pegasus_notetaker - fix endpoint sanity check
  Input: aiptek - fix endpoint sanity check
  Input: gtco - fix endpoint sanity check
  Input: sur40 - fix interface sanity checks
  Input: pm8xxx-vib - fix handling of separate enable register
  Documentation: Document arm64 kpti control
  mmc: sdhci: fix minimum clock rate for v3 controller
  mmc: tegra: fix SDR50 tuning override
  ARM: 8950/1: ftrace/recordmcount: filter relocation types
  Revert "Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers"
  Input: keyspan-remote - fix control-message timeouts
  hwmon: (core) Do not use device managed functions for memory allocations
  hwmon: (core) Fix double-free in __hwmon_device_register()
  hwmon: Deal with errors from the thermal subsystem
  hwmon: (adt7475) Make volt2reg return same reg as reg2volt input
  net: rtnetlink: validate IFLA_MTU attribute in rtnl_create_link()
  tcp_bbr: improve arithmetic division in bbr_update_bw()
  net: usb: lan78xx: Add .ndo_features_check
  net-sysfs: Fix reference count leak
  net-sysfs: Call dev_hold always in rx_queue_add_kobject
  net-sysfs: Call dev_hold always in netdev_queue_add_kobject
  net-sysfs: fix netdev_queue_add_kobject() breakage
  net-sysfs: Fix reference count leak in rx|netdev_queue_add_kobject
  net_sched: fix datalen for ematch
  net, ip_tunnel: fix namespaces move
  net, ip6_tunnel: fix namespaces move
  net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM
  ipv6: sr: remove SKB_GSO_IPXIP6 on End.D* actions
  gtp: make sure only SOCK_DGRAM UDP sockets are accepted
  firestream: fix memory leaks
  can, slip: Protect tty->disc_data in write_wakeup and close with RCU
  UPSTREAM: staging: most: net: fix buffer overflow
  ANDROID: Fixing incremental fs style issues
  ANDROID: Make incfs selftests pass
  ANDROID: Initial commit of Incremental FS
  ANDROID: cuttlefish_defconfig: Enable CONFIG_BTT
  Linux 4.14.168
  m68k: Call timer_interrupt() with interrupts disabled
  serial: stm32: fix clearing interrupt error flags
  IB/iser: Fix dma_nents type definition
  arm64: dts: juno: Fix UART frequency
  drm/radeon: fix bad DMA from INTERRUPT_CNTL2
  dmaengine: ti: edma: fix missed failure handling
  affs: fix a memory leak in affs_remount
  mmc: core: fix wl1251 sdio quirks
  mmc: sdio: fix wl1251 vendor id
  packet: fix data-race in fanout_flow_is_huge()
  net: neigh: use long type to store jiffies delta
  hv_netvsc: flag software created hash value
  MIPS: Loongson: Fix return value of loongson_hwmon_init
  afs: Fix large file support
  net: qca_spi: Move reset_count to struct qcaspi
  net: netem: correct the parent's backlog when corrupted packet was dropped
  net: netem: fix error path for corrupted GSO frames
  dmaengine: imx-sdma: fix size check for sdma script_number
  drm/msm/dsi: Implement reset correctly
  tcp: annotate lockless access to tcp_memory_pressure
  net: add {READ|WRITE}_ONCE() annotations on ->rskq_accept_head
  net: avoid possible false sharing in sk_leave_memory_pressure()
  act_mirred: Fix mirred_init_module error handling
  net: stmmac: fix length of PTP clock's name string
  llc: fix sk_buff refcounting in llc_conn_state_process()
  llc: fix another potential sk_buff leak in llc_ui_sendmsg()
  mac80211: accept deauth frames in IBSS mode
  net: stmmac: gmac4+: Not all Unicast addresses may be available
  nvme: retain split access workaround for capability reads
  net: ethernet: stmmac: Fix signedness bug in ipq806x_gmac_of_parse()
  of: mdio: Fix a signedness bug in of_phy_get_and_connect()
  net: axienet: fix a signedness bug in probe
  net: stmmac: dwmac-meson8b: Fix signedness bug in probe
  net: broadcom/bcmsysport: Fix signedness in bcm_sysport_probe()
  net: hisilicon: Fix signedness bug in hix5hd2_dev_probe()
  net: aquantia: Fix aq_vec_isr_legacy() return value
  iommu/amd: Wait for completion of IOTLB flush in attach_device
  net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names'
  RDMA/cma: Fix false error message
  ath10k: adjust skb length in ath10k_sdio_mbox_rx_packet
  pinctrl: iproc-gpio: Fix incorrect pinconf configurations
  net: sonic: replace dev_kfree_skb in sonic_send_packet
  hwmon: (shtc1) fix shtc1 and shtw1 id mask
  ixgbe: sync the first fragment unconditionally
  btrfs: use correct count in btrfs_file_write_iter()
  Btrfs: fix inode cache waiters hanging on path allocation failure
  Btrfs: fix inode cache waiters hanging on failure to start caching thread
  Btrfs: fix hang when loading existing inode cache off disk
  scsi: fnic: fix msix interrupt allocation
  net: sonic: return NETDEV_TX_OK if failed to map buffer
  tty: serial: fsl_lpuart: Use appropriate lpuart32_* I/O funcs
  ath9k: dynack: fix possible deadlock in ath_dynack_node_{de}init
  iio: dac: ad5380: fix incorrect assignment to val
  bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA
  irqdomain: Add the missing assignment of domain->fwnode for named fwnode
  staging: greybus: light: fix a couple double frees
  x86, perf: Fix the dependency of the x86 insn decoder selftest
  power: supply: Init device wakeup after device_add()
  hwmon: (lm75) Fix write operations for negative temperatures
  Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()"
  ahci: Do not export local variable ahci_em_messages
  iommu/mediatek: Fix iova_to_phys PA start for 4GB mode
  mips: avoid explicit UB in assignment of mips_io_port_base
  rtc: pcf2127: bugfix: read rtc disables watchdog
  media: atmel: atmel-isi: fix timeout value for stop streaming
  mac80211: minstrel_ht: fix per-group max throughput rate initialization
  dmaengine: dw: platform: Switch to acpi_dma_controller_register()
  ASoC: sun4i-i2s: RX and TX counter registers are swapped
  signal: Allow cifs and drbd to receive their terminating signals
  bnxt_en: Fix handling FRAG_ERR when NVM_INSTALL_UPDATE cmd fails
  net/rds: Add a few missing rds_stat_names entries
  ASoC: wm8737: Fix copy-paste error in wm8737_snd_controls
  ASoC: cs4349: Use PM ops 'cs4349_runtime_pm'
  ASoC: es8328: Fix copy-paste error in es8328_right_line_controls
  ext4: set error return correctly when ext4_htree_store_dirent fails
  crypto: caam - free resources in case caam_rng registration failed
  cifs: fix rmmod regression in cifs.ko caused by force_sig changes
  net/mlx5: Fix mlx5_ifc_query_lag_out_bits
  ARM: dts: stm32: add missing vdda-supply to adc on stm32h743i-eval
  tipc: reduce risk of wakeup queue starvation
  ALSA: aoa: onyx: always initialize register read value
  crypto: ccp - Reduce maximum stack usage
  x86/kgbd: Use NMI_VECTOR not APIC_DM_NMI
  mic: avoid statically declaring a 'struct device'.
  usb: host: xhci-hub: fix extra endianness conversion
  qed: reduce maximum stack frame size
  libertas_tf: Use correct channel range in lbtf_geo_init
  PM: sleep: Fix possible overflow in pm_system_cancel_wakeup()
  clk: sunxi-ng: v3s: add the missing PLL_DDR1
  scsi: libfc: fix null pointer dereference on a null lport
  net: pasemi: fix an use-after-free in pasemi_mac_phy_init()
  RDMA/hns: Fixs hw access invalid dma memory error
  devres: allow const resource arguments
  rxrpc: Fix uninitialized error code in rxrpc_send_data_packet()
  mfd: intel-lpss: Release IDA resources
  iommu/amd: Make iommu_disable safer
  bnxt_en: Fix ethtool selftest crash under error conditions.
  nvmem: imx-ocotp: Ensure WAIT bits are preserved when setting timing
  clk: qcom: Fix -Wunused-const-variable
  dmaengine: hsu: Revert "set HSU_CH_MTSR to memory width"
  perf/ioctl: Add check for the sample_period value
  drm/msm/a3xx: remove TPL1 regs from snapshot
  rtc: pcf8563: Clear event flags and disable interrupts before requesting irq
  rtc: pcf8563: Fix interrupt trigger method
  ASoC: ti: davinci-mcasp: Fix slot mask settings when using multiple AXRs
  net/af_iucv: always register net_device notifier
  net: netem: fix backlog accounting for corrupted GSO frames
  drm/msm/mdp5: Fix mdp5_cfg_init error return
  powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration
  powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild
  qed: iWARP - Use READ_ONCE and smp_store_release to access ep->state
  iommu/vt-d: Duplicate iommu_resv_region objects per device list
  mpls: fix warning with multi-label encap
  media: vivid: fix incorrect assignment operation when setting video mode
  cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency
  cpufreq: brcmstb-avs-cpufreq: Fix initial command check
  netvsc: unshare skb in VF rx handler
  inet: frags: call inet_frags_fini() after unregister_pernet_subsys()
  signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig
  iommu: Use right function to get group for device
  misc: sgi-xp: Properly initialize buf in xpc_get_rsvd_page_pa
  serial: stm32: fix wakeup source initialization
  serial: stm32: Add support of TC bit status check
  serial: stm32: fix transmit_chars when tx is stopped
  serial: stm32: fix rx error handling
  crypto: ccp - Fix 3DES complaint from ccp-crypto module
  crypto: ccp - fix AES CFB error exposed by new test vectors
  spi: spi-fsl-spi: call spi_finalize_current_message() at the end
  RDMA/qedr: Fix incorrect device rate.
  arm64: dts: meson: libretech-cc: set eMMC as removable
  dmaengine: tegra210-adma: Fix crash during probe
  ARM: dts: sun8i-h3: Fix wifi in Beelink X2 DT
  EDAC/mc: Fix edac_mc_find() in case no device is found
  thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
  backlight: lm3630a: Return 0 on success in update_status functions
  kdb: do a sanity check on the cpu in kdb_per_cpu()
  ARM: riscpc: fix lack of keyboard interrupts after irq conversion
  pwm: meson: Don't disable PWM when setting duty repeatedly
  pwm: meson: Consider 128 a valid pre-divider
  netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule
  crypto: caam - fix caam_dump_sg that iterates through scatterlist
  platform/x86: alienware-wmi: printing the wrong error code
  media: davinci/vpbe: array underflow in vpbe_enum_outputs()
  media: omap_vout: potential buffer overflow in vidioc_dqbuf()
  l2tp: Fix possible NULL pointer dereference
  vfio/mdev: Fix aborting mdev child device removal if one fails
  vfio/mdev: Avoid release parent reference during error path
  afs: Fix the afs.cell and afs.volume xattr handlers
  lightnvm: pblk: fix lock order in pblk_rb_tear_down_check
  mmc: core: fix possible use after free of host
  dmaengine: tegra210-adma: restore channel status
  net: ena: fix ena_com_fill_hash_function() implementation
  net: ena: fix incorrect test of supported hash function
  net: ena: fix: Free napi resources when ena_up() fails
  net: ena: fix swapped parameters when calling ena_com_indirect_table_fill_entry
  iommu/vt-d: Make kernel parameter igfx_off work with vIOMMU
  IB/mlx5: Add missing XRC options to QP optional params mask
  dwc2: gadget: Fix completed transfer size calculation in DDMA
  usb: gadget: fsl: fix link error against usb-gadget module
  ASoC: fix valid stream condition
  packet: in recvmsg msg_name return at least sizeof sockaddr_ll
  scsi: qla2xxx: Avoid that qlt_send_resp_ctio() corrupts memory
  scsi: qla2xxx: Fix a format specifier
  irqchip/gic-v3-its: fix some definitions of inner cacheability attributes
  NFS: Don't interrupt file writeout due to fatal errors
  ALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk()
  dmaengine: axi-dmac: Don't check the number of frames for alignment
  6lowpan: Off by one handling ->nexthdr
  media: ov2659: fix unbalanced mutex_lock/unlock
  ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect
  powerpc: vdso: Make vdso32 installation conditional in vdso_install
  selftests/ipc: Fix msgque compiler warnings
  tipc: set sysctl_tipc_rmem and named_timeout right range
  platform/x86: alienware-wmi: fix kfree on potentially uninitialized pointer
  hwmon: (w83627hf) Use request_muxed_region for Super-IO accesses
  net: hns3: fix for vport->bw_limit overflow problem
  ARM: pxa: ssp: Fix "WARNING: invalid free of devm_ allocated data"
  scsi: target/core: Fix a race condition in the LUN lookup code
  scsi: qla2xxx: Unregister chrdev if module initialization fails
  ehea: Fix a copy-paste err in ehea_init_port_res
  spi: bcm2835aux: fix driver to not allow 65535 (=-1) cs-gpios
  soc/fsl/qe: Fix an error code in qe_pin_request()
  spi: tegra114: configure dma burst size to fifo trig level
  spi: tegra114: flush fifos
  spi: tegra114: terminate dma and reset on transfer timeout
  spi: tegra114: fix for unpacked mode transfers
  spi: tegra114: clear packed bit for unpacked mode
  media: tw5864: Fix possible NULL pointer dereference in tw5864_handle_frame
  media: davinci-isif: avoid uninitialized variable use
  ARM: OMAP2+: Fix potentially uninitialized return value for _setup_reset()
  arm64: dts: allwinner: a64: Add missing PIO clocks
  m68k: mac: Fix VIA timer counter accesses
  tipc: tipc clang warning
  jfs: fix bogus variable self-initialization
  regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB
  media: cx23885: check allocation return
  media: wl128x: Fix an error code in fm_download_firmware()
  media: cx18: update *pos correctly in cx18_read_pos()
  media: ivtv: update *pos correctly in ivtv_read_pos()
  regulator: lp87565: Fix missing register for LP87565_BUCK_0
  net: sh_eth: fix a missing check of of_get_phy_mode
  xen, cpu_hotplug: Prevent an out of bounds access
  drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen()
  scsi: megaraid_sas: reduce module load time
  x86/mm: Remove unused variable 'cpu'
  nios2: ksyms: Add missing symbol exports
  powerpc/mm: Check secondary hash page table
  net: aquantia: fixed instack structure overflow
  NFSv4/flexfiles: Fix invalid deref in FF_LAYOUT_DEVID_NODE()
  netfilter: nft_set_hash: fix lookups with fixed size hash on big endian
  regulator: wm831x-dcdc: Fix list of wm831x_dcdc_ilim from mA to uA
  ARM: 8848/1: virt: Align GIC version check with arm64 counterpart
  ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
  mmc: sdhci-brcmstb: handle mmc_of_parse() errors during probe
  NFS/pnfs: Bulk destroy of layouts needs to be safe w.r.t. umount
  platform/x86: wmi: fix potential null pointer dereference
  clocksource/drivers/exynos_mct: Fix error path in timer resources initialization
  clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable
  NFS: Fix a soft lockup in the delegation recovery code
  powerpc/64s: Fix logic when handling unknown CPU features
  staging: rtlwifi: Use proper enum for return in halmac_parse_psd_data_88xx
  fs/nfs: Fix nfs_parse_devname to not modify it's argument
  ASoC: qcom: Fix of-node refcount unbalance in apq8016_sbc_parse_of()
  drm/nouveau/pmu: don't print reply values if exec is false
  drm/nouveau/bios/ramcfg: fix missing parentheses when calculating RON
  net: dsa: qca8k: Enable delay for RGMII_ID mode
  regulator: pv88090: Fix array out-of-bounds access
  regulator: pv88080: Fix array out-of-bounds access
  regulator: pv88060: Fix array out-of-bounds access
  cdc-wdm: pass return value of recover_from_urb_loss
  dmaengine: mv_xor: Use correct device for DMA API
  staging: r8822be: check kzalloc return or bail
  KVM: PPC: Release all hardware TCE tables attached to a group
  hwmon: (pmbus/tps53679) Fix driver info initialization in probe routine
  vfio_pci: Enable memory accesses before calling pci_map_rom
  keys: Timestamp new keys
  block: don't use bio->bi_vcnt to figure out segment number
  usb: phy: twl6030-usb: fix possible use-after-free on remove
  PCI: endpoint: functions: Use memcpy_fromio()/memcpy_toio()
  pinctrl: sh-pfc: sh73a0: Fix fsic_spdif pin groups
  pinctrl: sh-pfc: r8a7792: Fix vin1_data18_b pin group
  pinctrl: sh-pfc: r8a7791: Fix scifb2_data_c pin group
  pinctrl: sh-pfc: emev2: Add missing pinmux functions
  drm/etnaviv: potential NULL dereference
  iw_cxgb4: use tos when finding ipv6 routes
  iw_cxgb4: use tos when importing the endpoint
  fbdev: chipsfb: remove set but not used variable 'size'
  rtc: pm8xxx: fix unintended sign extension
  rtc: 88pm80x: fix unintended sign extension
  rtc: 88pm860x: fix unintended sign extension
  rtc: ds1307: rx8130: Fix alarm handling
  net: phy: fixed_phy: Fix fixed_phy not checking GPIO
  thermal: mediatek: fix register index error
  rtc: ds1672: fix unintended sign extension
  staging: most: cdev: add missing check for cdev_add failure
  iwlwifi: mvm: fix RSS config command
  ARM: dts: lpc32xx: phy3250: fix SD card regulator voltage
  ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller clocks property
  ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller variant
  ARM: dts: lpc32xx: reparent keypad controller to SIC1
  ARM: dts: lpc32xx: add required clocks property to keypad device node
  driver core: Do not resume suppliers under device_links_write_lock()
  crypto: crypto4xx - Fix wrong ppc4xx_trng_probe()/ppc4xx_trng_remove() arguments
  driver: uio: fix possible use-after-free in __uio_register_device
  driver: uio: fix possible memory leak in __uio_register_device
  tty: ipwireless: Fix potential NULL pointer dereference
  iwlwifi: mvm: fix A-MPDU reference assignment
  net/mlx5: Take lock with IRQs disabled to avoid deadlock
  iwlwifi: mvm: avoid possible access out of array.
  clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it
  spi/topcliff_pch: Fix potential NULL dereference on allocation error
  rtc: cmos: ignore bogus century byte
  IB/iser: Pass the correct number of entries for dma mapped SGL
  ASoC: imx-sgtl5000: put of nodes if finding codec fails
  crypto: tgr192 - fix unaligned memory access
  crypto: brcm - Fix some set-but-not-used warning
  kbuild: mark prepare0 as PHONY to fix external module build
  media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVAL
  drm/etnaviv: NULL vs IS_ERR() buf in etnaviv_core_dump()
  RDMA/iw_cxgb4: Fix the unchecked ep dereference
  spi: cadence: Correct initialisation of runtime PM
  arm64: dts: apq8016-sbc: Increase load on l11 for SDCARD
  drm/shmob: Fix return value check in shmob_drm_probe
  RDMA/qedr: Fix out of bounds index check in query pkey
  RDMA/ocrdma: Fix out of bounds index check in query pkey
  IB/usnic: Fix out of bounds index check in query pkey
  MIPS: BCM63XX: drop unused and broken DSP platform device
  clk: dove: fix refcount leak in dove_clk_init()
  clk: mv98dx3236: fix refcount leak in mv98dx3236_clk_init()
  clk: armada-xp: fix refcount leak in axp_clk_init()
  clk: kirkwood: fix refcount leak in kirkwood_clk_init()
  clk: armada-370: fix refcount leak in a370_clk_init()
  clk: vf610: fix refcount leak in vf610_clocks_init()
  clk: imx7d: fix refcount leak in imx7d_clocks_init()
  clk: imx6sx: fix refcount leak in imx6sx_clocks_init()
  clk: imx6q: fix refcount leak in imx6q_clocks_init()
  clk: samsung: exynos4: fix refcount leak in exynos4_get_xom()
  clk: socfpga: fix refcount leak
  clk: qoriq: fix refcount leak in clockgen_init()
  clk: highbank: fix refcount leak in hb_clk_init()
  Input: nomadik-ske-keypad - fix a loop timeout test
  vxlan: changelink: Fix handling of default remotes
  pinctrl: sh-pfc: sh7734: Remove bogus IPSR10 value
  pinctrl: sh-pfc: sh7269: Add missing PCIOR0 field
  pinctrl: sh-pfc: r8a77995: Remove bogus SEL_PWM[0-3]_3 configurations
  pinctrl: sh-pfc: sh7734: Add missing IPSR11 field
  pinctrl: sh-pfc: r8a7794: Remove bogus IPSR9 field
  pinctrl: sh-pfc: sh73a0: Add missing TO pin to tpu4_to3 group
  pinctrl: sh-pfc: r8a7791: Remove bogus marks from vin1_b_data18 group
  pinctrl: sh-pfc: r8a7791: Remove bogus ctrl marks from qspi_data4_b group
  pinctrl: sh-pfc: r8a7740: Add missing LCD0 marks to lcd0_data24_1 group
  pinctrl: sh-pfc: r8a7740: Add missing REF125CK pin to gether_gmii group
  switchtec: Remove immediate status check after submitting MRPC command
  staging: bcm2835-camera: Abort probe if there is no camera
  IB/rxe: Fix incorrect cache cleanup in error flow
  net: phy: Fix not to call phy_resume() if PHY is not attached
  drm/dp_mst: Skip validating ports during destruction, just ref
  exportfs: fix 'passing zero to ERR_PTR()' warning
  pcrypt: use format specifier in kobject_add
  NTB: ntb_hw_idt: replace IS_ERR_OR_NULL with regular NULL checks
  mlxsw: reg: QEEC: Add minimum shaper fields
  drm/sun4i: hdmi: Fix double flag assignation
  pwm: lpss: Release runtime-pm reference from the driver's remove callback
  staging: comedi: ni_mio_common: protect register write overflow
  ALSA: usb-audio: update quirk for B&W PX to remove microphone
  IB/hfi1: Add mtu check for operational data VLs
  IB/rxe: replace kvfree with vfree
  drm/hisilicon: hibmc: Don't overwrite fb helper surface depth
  PCI: iproc: Remove PAXC slot check to allow VF support
  apparmor: don't try to replace stale label in ptrace access check
  ALSA: hda: fix unused variable warning
  drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset()
  drm/sti: do not remove the drm_bridge that was never added
  crypto: sun4i-ss - fix big endian issues
  mt7601u: fix bbp version check in mt7601u_wait_bbp_ready
  tipc: fix wrong timeout input for tipc_wait_for_cond()
  powerpc/archrandom: fix arch_get_random_seed_int()
  mfd: intel-lpss: Add default I2C device properties for Gemini Lake
  xfs: Sanity check flags of Q_XQUOTARM call
  FROMGIT: ext4: Add EXT4_IOC_FSGETXATTR/EXT4_IOC_FSSETXATTR to compat_ioctl.
  ANDROID: cuttlefish_defconfig: enable CONFIG_IKHEADERS as m
  ANDROID: cuttlefish_defconfig: enable NVDIMM/PMEM options
  UPSTREAM: virtio-pmem: Add virtio pmem driver
  BACKPORT: libnvdimm: nd_region flush callback support
  UPSTREAM: libnvdimm/of_pmem: Provide a unique name for bus provider
  UPSTREAM: libnvdimm/of_pmem: Fix platform_no_drv_owner.cocci warnings
  UPSTREAM: libnvdimm, of_pmem: use dev_to_node() instead of of_node_to_nid()
  UPSTREAM: libnvdimm: Add device-tree based driver
  UPSTREAM: libnvdimm: Add of_node to region and bus descriptors
  FROMLIST: security: selinux: allow per-file labelling for binderfs
  UPSTREAM: mm/page_io.c: annotate refault stalls from swap_readpage
  Revert "ANDROID: security,perf: Allow further restriction of perf_event_open"
  ANDROID: selinux: modify RTM_GETLINK permission
  UPSTREAM: lib/test_meminit.c: add bulk alloc/free tests
  UPSTREAM: lib/test_meminit: add a kmem_cache_alloc_bulk() test
  UPSTREAM: mm: slub: really fix slab walking for init_on_free
  UPSTREAM: mm/slub.c: init_on_free=1 should wipe freelist ptr for bulk allocations
  Linux 4.14.167
  regulator: ab8500: Remove SYSCLKREQ from enum ab8505_regulator_id
  perf probe: Fix wrong address verification
  scsi: core: scsi_trace: Use get_unaligned_be*()
  scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan
  scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI
  scsi: target: core: Fix a pr_debug() argument
  scsi: bnx2i: fix potential use after free
  scsi: qla4xxx: fix double free bug
  scsi: esas2r: unlock on error in esas2r_nvram_read_direct()
  reiserfs: fix handling of -EOPNOTSUPP in reiserfs_for_each_xattr
  Revert "arm64: dts: juno: add dma-ranges property"
  tick/sched: Annotate lockless access to last_jiffies_update
  cfg80211: check for set_wiphy_params
  arm64: dts: meson-gxl-s905x-khadas-vim: fix gpio-keys-polled node
  cw1200: Fix a signedness bug in cw1200_load_firmware()
  xen/blkfront: Adjust indentation in xlvbd_alloc_gendisk
  tcp: fix marked lost packets not being retransmitted
  r8152: add missing endpoint sanity check
  ptp: free ptp device pin descriptors properly
  net/wan/fsl_ucc_hdlc: fix out of bounds write on array utdm_info
  net: usb: lan78xx: limit size of local TSO packets
  net: hns: fix soft lockup when there is not enough memory
  net: dsa: tag_qca: fix doubled Tx statistics
  hv_netvsc: Fix memory leak when removing rndis device
  macvlan: use skb_reset_mac_header() in macvlan_queue_xmit()
  batman-adv: Fix DAT candidate selection on little endian systems
  NFC: pn533: fix bulk-message timeout
  netfilter: arp_tables: init netns pointer in xt_tgdtor_param struct
  netfilter: fix a use-after-free in mtype_destroy()
  cfg80211: fix page refcount issue in A-MSDU decap
  arm64: dts: agilex/stratix10: fix pmu interrupt numbers
  mm/huge_memory.c: thp: fix conflict of above-47bit hint address and PMD alignment
  mm/huge_memory.c: make __thp_get_unmapped_area static
  USB: serial: io_edgeport: handle unbound ports on URB completion
  USB: serial: io_edgeport: use irqsave() in USB's complete callback
  net: stmmac: Enable 16KB buffer size
  net: stmmac: 16KB buffer must be 16 byte aligned
  mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio()
  btrfs: fix memory leak in qgroup accounting
  mm/shmem.c: thp, shmem: fix conflict of above-47bit hint address and PMD alignment
  perf report: Fix incorrectly added dimensions as switch perf data file
  perf hists: Fix variable name's inconsistency in hists__for_each() macro
  x86/efistub: Disable paging at mixed mode entry
  x86/resctrl: Fix an imbalance in domain_remove_cpu()
  usb: core: hub: Improved device recognition on remote wakeup
  ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
  scsi: mptfusion: Fix double fetch bug in ioctl
  scsi: fnic: fix invalid stack access
  USB: serial: quatech2: handle unbound ports
  USB: serial: keyspan: handle unbound ports
  USB: serial: io_edgeport: add missing active-port sanity check
  USB: serial: ch341: handle unbound port at reset_resume
  USB: serial: suppress driver bind attributes
  USB: serial: option: add support for Quectel RM500Q in QDL mode
  USB: serial: opticon: fix control-message timeouts
  USB: serial: option: Add support for Quectel RM500Q
  USB: serial: simple: Add Motorola Solutions TETRA MTP3xxx and MTP85xx
  iio: buffer: align the size of scan bytes to size of the largest element
  ARM: dts: am571x-idk: Fix gpios property to have the correct gpio number
  block: fix an integer overflow in logical block size
  Fix built-in early-load Intel microcode alignment
  ALSA: seq: Fix racy access for queue timer in proc read
  ASoC: msm8916-wcd-analog: Fix selected events for MIC BIAS External1
  clk: Don't try to enable critical clocks if prepare failed
  dt-bindings: reset: meson8b: fix duplicate reset IDs
  Linux 4.14.166
  ocfs2: call journal flush to mark journal as empty after journal recovery when mount
  hexagon: work around compiler crash
  hexagon: parenthesize registers in asm predicates
  ioat: ioat_alloc_ring() failure handling.
  dmaengine: k3dma: Avoid null pointer traversal
  MIPS: Prevent link failure with kcov instrumentation
  mips: cacheinfo: report shared CPU map
  rseq/selftests: Turn off timeout setting
  scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy()
  gpio: mpc8xxx: Add platform device to gpiochip->parent
  rtc: msm6242: Fix reading of 10-hour digit
  f2fs: fix potential overflow
  rtlwifi: Remove unnecessary NULL check in rtl_regd_init
  spi: atmel: fix handling of cs_change set on non-last xfer
  mtd: spi-nor: fix silent truncation in spi_nor_read_raw()
  mtd: spi-nor: fix silent truncation in spi_nor_read()
  media: exynos4-is: Fix recursive locking in isp_video_release()
  media: ov6650: Fix .get_fmt() V4L2_SUBDEV_FORMAT_TRY support
  media: ov6650: Fix some format attributes not under control
  media: ov6650: Fix incorrect use of JPEG colorspace
  tty: serial: pch_uart: correct usage of dma_unmap_sg
  tty: serial: imx: use the sg count from dma_map_sg
  powerpc/powernv: Disable native PCIe port management
  PCI/PTM: Remove spurious "d" from granularity message
  compat_ioctl: handle SIOCOUTQNSD
  af_unix: add compat_ioctl support
  arm64: dts: apq8096-db820c: Increase load on l21 for SDCARD
  scsi: sd: enable compat ioctls for sed-opal
  pinctrl: lewisburg: Update pin list according to v1.1v6
  pinctl: ti: iodelay: fix error checking on pinctrl_count_index_with_args call
  clk: samsung: exynos5420: Preserve CPU clocks configuration during suspend/resume
  mei: fix modalias documentation
  iio: imu: adis16480: assign bias value only if operation succeeded
  NFSv4.x: Drop the slot if nfs4_delegreturn_prepare waits for layoutreturn
  xprtrdma: Fix completion wait during device removal
  platform/x86: asus-wmi: Fix keyboard brightness cannot be set to 0
  scsi: sd: Clear sdkp->protection_type if disk is reformatted without PI
  scsi: enclosure: Fix stale device oops with hot replug
  arm64: Check for errata before evaluating cpu features
  arm64: add sentinel to kpti_safe_list
  RDMA/srpt: Report the SCSI residual to the initiator
  RDMA/mlx5: Return proper error value
  btrfs: simplify inode locking for RWF_NOWAIT
  cifs: Adjust indentation in smb2_open_file
  hsr: reset network header when supervision frame is created
  gpio: Fix error message on out-of-range GPIO in lookup table
  iommu: Remove device link to group on failure
  gpio: zynq: Fix for bug in zynq_gpio_restore_context API
  ASoC: stm32: spdifrx: fix race condition in irq handler
  ASoC: stm32: spdifrx: fix inconsistent lock state
  RDMA/bnxt_re: Fix Send Work Entry state check while polling completions
  rtc: mt6397: fix alarm register overwrite
  drm/i915: Fix use-after-free when destroying GEM context
  dccp: Fix memleak in __feat_register_sp
  iwlwifi: dbg_ini: fix memory leak in alloc_sgtable
  wimax: i2400: Fix memory leak in i2400m_op_rfkill_sw_toggle
  wimax: i2400: fix memory leak
  cifs: Fix lease buffer length error
  media: usb:zr364xx:Fix KASAN:null-ptr-deref Read in zr364xx_vidioc_querycap
  mac80211: Do not send Layer 2 Update frame before authorization
  cfg80211/mac80211: make ieee80211_send_layer2_update a public function
  arm64: Make sure permission updates happen for pmd/pud
  arm64: Enforce BBM for huge IO/VMAP mappings
  arm64: mm: Change page table pointer name in p[md]_set_huge()
  arm64: don't open code page table entry creation
  rsi: add fix for crash during assertions
  fs/select: avoid clang stack usage warning
  ethtool: reduce stack usage with clang
  HID: hidraw, uhid: Always report EPOLLOUT
  HID: hidraw: Fix returning EPOLLOUT from hidraw_poll
  hidraw: Return EPOLLOUT from hidraw_poll
  cuttlefish: enable CONFIG_DUMMY=y
  cuttlefish - enable CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG=y
  ANDROID: Enable HID_STEAM as y
  Linux 4.14.165
  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
  phy: cpcap-usb: Fix flakey host idling and enumerating of devices
  phy: cpcap-usb: Fix error path when no host driver is loaded
  USB: Fix: Don't skip endpoint descriptors with maxpacket=0
  HID: hiddev: fix mess in hiddev_open()
  arm64: cpufeature: Avoid warnings due to unused symbols
  ath10k: fix memory leak
  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
  tty: link tty and port before configuring it as console
  staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21
  drm/dp_mst: correct the shifting in DP_REMOTE_I2C_READ
  drm/fb-helper: Round up bits_per_pixel if possible
  Input: add safety guards to input_set_keycode()
  HID: hid-input: clear unmapped usages
  staging: comedi: adv_pci1710: fix AI channels 16-31 for PCI-1713
  usb: musb: dma: Correct parameter passed to IRQ handler
  usb: musb: Disable pullup at init
  usb: musb: fix idling for suspend after disconnect interrupt
  USB: serial: option: add ZLP support for 0x1bc7/0x9010
  staging: vt6656: set usb_set_intfdata on driver fail.
  gpiolib: acpi: Add honor_wakeup module-option + quirk mechanism
  gpiolib: acpi: Turn dmi_system_id table into a generic quirk table
  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
  HID: uhid: Fix returning EPOLLOUT from uhid_char_poll
  HID: Fix slab-out-of-bounds read in hid_field_extract
  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: hda/realtek - Set EAPD control to default for ALC222
  ALSA: hda/realtek - Add new codec supported for ALCS1200A
  ALSA: usb-audio: Apply the sample rate quirk for Bose Companion 5
  usb: chipidea: host: Disable port power only if previously enabled
  chardev: Avoid potential use-after-free in 'chrdev_open()'
  UPSTREAM: kcov: fix struct layout for kcov_remote_arg
  UPSTREAM: vhost, kcov: collect coverage from vhost_worker
  UPSTREAM: usb, kcov: collect coverage from hub_event
  BACKPORT: kcov: remote coverage support
  UPSTREAM: kcov: improve CONFIG_ARCH_HAS_KCOV help text
  UPSTREAM: kcov: convert kcov.refcount to refcount_t
  UPSTREAM: kcov: no need to check return value of debugfs_create functions
  UPSTREAM: kernel/kcov.c: mark write_comp_data() as notrace
  UPSTREAM: kernel/kcov.c: mark funcs in __sanitizer_cov_trace_pc() as notrace
  BACKPORT: sched/core / kcov: avoid kcov_area during task switch
  UPSTREAM: kcov: prefault the kcov_area
  BACKPORT: kcov: test compiler capability in Kconfig and correct dependency
  UPSTREAM: gcc-plugins: fix build condition of SANCOV plugin
  UPSTREAM: kcov: fix comparison callback signature
  UPSTREAM: kcov: update documentation
  BACKPORT: Makefile: support flag -fsanitizer-coverage=trace-cmp
  BACKPORT: kcov: support comparison operands collection
  UPSTREAM: kcov: remove pointless current != NULL check
  Linux 4.14.164
  vlan: fix memory leak in vlan_dev_set_egress_priority
  net: sch_prio: When ungrafting, replace with FIFO
  vlan: vlan_changelink() should propagate errors
  vxlan: fix tos value before xmit
  tcp: fix "old stuff" D-SACK causing SACK to be treated as D-SACK
  sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY
  USB: serial: option: add Telit ME910G1 0x110a composition
  USB: core: fix check for duplicate endpoints
  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
  net: stmmac: dwmac-sun8i: Allow all RGMII modes
  net: dsa: mv88e6xxx: Preserve priority when setting CPU port.
  macvlan: do not assume mac_header is set in macvlan_broadcast()
  gtp: fix bad unlock balance in gtp_encap_enable_socket
  mmc: block: propagate correct returned value in mmc_rpmb_ioctl
  mmc: core: Prevent bus reference leak in mmc_blk_init()
  mmc: block: Fix bug when removing RPMB chardev
  mmc: block: Delete mmc_access_rpmb()
  mmc: block: Convert RPMB to a character device
  PCI/switchtec: Read all 64 bits of part_event_bitmap
  bpf: Fix passing modified ctx to ld/abs/ind instruction
  bpf: reject passing modified ctx to helper functions
  hv_netvsc: Fix unwanted rx_table reset
  llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c)
  parisc: Fix compiler warnings in debug_core.c
  block: fix memleak when __blk_rq_map_user_iov() is failed
  s390/dasd: fix memleak in path handling error case
  s390/dasd/cio: Interpret ccw_device_get_mdc return value correctly
  net: stmmac: RX buffer size must be 16 byte aligned
  net: stmmac: Do not accept invalid MTU values
  fs: avoid softlockups in s_inodes iterators
  perf/x86/intel: Fix PT PMI handling
  kconfig: don't crash on NULL expressions in expr_eq()
  regulator: rn5t618: fix module aliases
  ASoC: wm8962: fix lambda value
  rfkill: Fix incorrect check to avoid NULL pointer dereference
  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
  samples: bpf: fix syscall_tp due to unused syscall
  samples: bpf: Replace symbol compare of trace_event
  ARM: dts: am437x-gp/epos-evm: fix panel compatible
  bpf, mips: Limit to 33 tail calls
  ARM: dts: bcm283x: Fix critical trip point
  ASoC: topology: Check return value for soc_tplg_pcm_create()
  spi: spi-cavium-thunderx: Add missing pci_release_regions()
  ARM: dts: Cygnus: Fix MDIO node address/size cells
  netfilter: nf_tables: validate NFT_SET_ELEM_INTERVAL_END
  netfilter: uapi: Avoid undefined left-shift in xt_sctp.h
  ARM: vexpress: Set-up shared OPP table instead of individual for each CPU
  efi/gop: Fix memory leak in __gop_query32/64()
  efi/gop: Return EFI_SUCCESS if a usable GOP was found
  efi/gop: Return EFI_NOT_FOUND if there are no usable GOPs
  x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage
  libtraceevent: Fix lib installation with O=
  mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()
  netfilter: ctnetlink: netns exit must wait for callbacks
  locking/spinlock/debug: Fix various data races
  USB: dummy-hcd: increase max number of devices to 32
  USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
  UPSTREAM: USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
  UPSTREAM: USB: dummy-hcd: increase max number of devices to 32
  UPSTREAM: USB: dummy-hcd: Fix failure to give back unlinked URBs
  UPSTREAM: USB: dummy-hcd: bandwidth limits for non-bulk transfers
  BACKPORT: perf_event: Add support for LSM and SELinux checks
  ANDROID: cuttlefish_defconfig: remove 80211_HWSIM
  docs: fs-verity: mention statx() support
  f2fs: support STATX_ATTR_VERITY
  ext4: support STATX_ATTR_VERITY
  statx: define STATX_ATTR_VERITY
  docs: fs-verity: document first supported kernel version
  f2fs: add support for IV_INO_LBLK_64 encryption policies
  ext4: add support for IV_INO_LBLK_64 encryption policies
  fscrypt: add support for IV_INO_LBLK_64 policies
  fscrypt: avoid data race on fscrypt_mode::logged_impl_name
  fscrypt: zeroize fscrypt_info before freeing
  fscrypt: remove struct fscrypt_ctx
  fscrypt: invoke crypto API for ESSIV handling

Change-Id: I8f19e2e744a26ddcc343e5bb52f4786e5dfc9273
Signed-off-by: default avatarckosuru <kosuru@codeaurora.org>
parents d80430b6 6b42a54e
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+1 −1
Original line number Diff line number Diff line
@@ -4,7 +4,7 @@ KernelVersion: 3.10
Contact:	Samuel Ortiz <sameo@linux.intel.com>
		linux-mei@linux.intel.com
Description:	Stores the same MODALIAS value emitted by uevent
		Format: mei:<mei device name>:<device uuid>:
		Format: mei:<mei device name>:<device uuid>:<protocol version>

What:		/sys/bus/mei/devices/.../name
Date:		May 2015
+7 −0
Original line number Diff line number Diff line
@@ -7,6 +7,13 @@ Description:
		The name of devfreq object denoted as ... is same as the
		name of device using devfreq.

What:		/sys/class/devfreq/.../name
Date:		November 2019
Contact:	Chanwoo Choi <cw00.choi@samsung.com>
Description:
		The /sys/class/devfreq/.../name shows the name of device
		of the corresponding devfreq object.

What:		/sys/class/devfreq/.../governor
Date:		September 2011
Contact:	MyungJoo Ham <myungjoo.ham@samsung.com>
+6 −0
Original line number Diff line number Diff line
@@ -1867,6 +1867,12 @@
			Built with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y,
			the default is off.

	kpti=		[ARM64] Control page table isolation of user
			and kernel address spaces.
			Default: enabled on cores which need mitigation.
			0: force disabled
			1: force enabled

	kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
			Default is 0 (don't ignore, but inject #GP)

+3 −0
Original line number Diff line number Diff line
@@ -90,6 +90,9 @@ Freq_i to Freq_j. Freq_i is in descending order with increasing rows and
Freq_j is in descending order with increasing columns. The output here also 
contains the actual freq values for each row and column for better readability.

If the transition table is bigger than PAGE_SIZE, reading this will
return an -EFBIG error.

--------------------------------------------------------------------------------
<mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # cat trans_table
   From  :    To
+224 −4
Original line number Diff line number Diff line
@@ -12,19 +12,31 @@ To achieve this goal it does not collect coverage in soft/hard interrupts
and instrumentation of some inherently non-deterministic parts of kernel is
disabled (e.g. scheduler, locking).

Usage
-----
kcov is also able to collect comparison operands from the instrumented code
(this feature currently requires that the kernel is compiled with clang).

Prerequisites
-------------

Configure the kernel with::

        CONFIG_KCOV=y

CONFIG_KCOV requires gcc built on revision 231296 or later.

If the comparison operands need to be collected, set::

	CONFIG_KCOV_ENABLE_COMPARISONS=y

Profiling data will only become accessible once debugfs has been mounted::

        mount -t debugfs none /sys/kernel/debug

The following program demonstrates kcov usage from within a test program:
Coverage collection
-------------------

The following program demonstrates coverage collection from within a test
program using kcov:

.. code-block:: c

@@ -44,6 +56,9 @@ The following program demonstrates kcov usage from within a test program:
    #define KCOV_DISABLE			_IO('c', 101)
    #define COVER_SIZE			(64<<10)

    #define KCOV_TRACE_PC  0
    #define KCOV_TRACE_CMP 1

    int main(int argc, char **argv)
    {
	int fd;
@@ -64,7 +79,7 @@ The following program demonstrates kcov usage from within a test program:
	if ((void*)cover == MAP_FAILED)
		perror("mmap"), exit(1);
	/* Enable coverage collection on the current thread. */
	if (ioctl(fd, KCOV_ENABLE, 0))
	if (ioctl(fd, KCOV_ENABLE, KCOV_TRACE_PC))
		perror("ioctl"), exit(1);
	/* Reset coverage from the tail of the ioctl() call. */
	__atomic_store_n(&cover[0], 0, __ATOMIC_RELAXED);
@@ -111,3 +126,208 @@ The interface is fine-grained to allow efficient forking of test processes.
That is, a parent process opens /sys/kernel/debug/kcov, enables trace mode,
mmaps coverage buffer and then forks child processes in a loop. Child processes
only need to enable coverage (disable happens automatically on thread end).

Comparison operands collection
------------------------------

Comparison operands collection is similar to coverage collection:

.. code-block:: c

    /* Same includes and defines as above. */

    /* Number of 64-bit words per record. */
    #define KCOV_WORDS_PER_CMP 4

    /*
     * The format for the types of collected comparisons.
     *
     * Bit 0 shows whether one of the arguments is a compile-time constant.
     * Bits 1 & 2 contain log2 of the argument size, up to 8 bytes.
     */

    #define KCOV_CMP_CONST          (1 << 0)
    #define KCOV_CMP_SIZE(n)        ((n) << 1)
    #define KCOV_CMP_MASK           KCOV_CMP_SIZE(3)

    int main(int argc, char **argv)
    {
	int fd;
	uint64_t *cover, type, arg1, arg2, is_const, size;
	unsigned long n, i;

	fd = open("/sys/kernel/debug/kcov", O_RDWR);
	if (fd == -1)
		perror("open"), exit(1);
	if (ioctl(fd, KCOV_INIT_TRACE, COVER_SIZE))
		perror("ioctl"), exit(1);
	/*
	* Note that the buffer pointer is of type uint64_t*, because all
	* the comparison operands are promoted to uint64_t.
	*/
	cover = (uint64_t *)mmap(NULL, COVER_SIZE * sizeof(unsigned long),
				     PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
	if ((void*)cover == MAP_FAILED)
		perror("mmap"), exit(1);
	/* Note KCOV_TRACE_CMP instead of KCOV_TRACE_PC. */
	if (ioctl(fd, KCOV_ENABLE, KCOV_TRACE_CMP))
		perror("ioctl"), exit(1);
	__atomic_store_n(&cover[0], 0, __ATOMIC_RELAXED);
	read(-1, NULL, 0);
	/* Read number of comparisons collected. */
	n = __atomic_load_n(&cover[0], __ATOMIC_RELAXED);
	for (i = 0; i < n; i++) {
		type = cover[i * KCOV_WORDS_PER_CMP + 1];
		/* arg1 and arg2 - operands of the comparison. */
		arg1 = cover[i * KCOV_WORDS_PER_CMP + 2];
		arg2 = cover[i * KCOV_WORDS_PER_CMP + 3];
		/* ip - caller address. */
		ip = cover[i * KCOV_WORDS_PER_CMP + 4];
		/* size of the operands. */
		size = 1 << ((type & KCOV_CMP_MASK) >> 1);
		/* is_const - true if either operand is a compile-time constant.*/
		is_const = type & KCOV_CMP_CONST;
		printf("ip: 0x%lx type: 0x%lx, arg1: 0x%lx, arg2: 0x%lx, "
			"size: %lu, %s\n",
			ip, type, arg1, arg2, size,
		is_const ? "const" : "non-const");
	}
	if (ioctl(fd, KCOV_DISABLE, 0))
		perror("ioctl"), exit(1);
	/* Free resources. */
	if (munmap(cover, COVER_SIZE * sizeof(unsigned long)))
		perror("munmap"), exit(1);
	if (close(fd))
		perror("close"), exit(1);
	return 0;
    }

Note that the kcov modes (coverage collection or comparison operands) are
mutually exclusive.

Remote coverage collection
--------------------------

With KCOV_ENABLE coverage is collected only for syscalls that are issued
from the current process. With KCOV_REMOTE_ENABLE it's possible to collect
coverage for arbitrary parts of the kernel code, provided that those parts
are annotated with kcov_remote_start()/kcov_remote_stop().

This allows to collect coverage from two types of kernel background
threads: the global ones, that are spawned during kernel boot in a limited
number of instances (e.g. one USB hub_event() worker thread is spawned per
USB HCD); and the local ones, that are spawned when a user interacts with
some kernel interface (e.g. vhost workers).

To enable collecting coverage from a global background thread, a unique
global handle must be assigned and passed to the corresponding
kcov_remote_start() call. Then a userspace process can pass a list of such
handles to the KCOV_REMOTE_ENABLE ioctl in the handles array field of the
kcov_remote_arg struct. This will attach the used kcov device to the code
sections, that are referenced by those handles.

Since there might be many local background threads spawned from different
userspace processes, we can't use a single global handle per annotation.
Instead, the userspace process passes a non-zero handle through the
common_handle field of the kcov_remote_arg struct. This common handle gets
saved to the kcov_handle field in the current task_struct and needs to be
passed to the newly spawned threads via custom annotations. Those threads
should in turn be annotated with kcov_remote_start()/kcov_remote_stop().

Internally kcov stores handles as u64 integers. The top byte of a handle
is used to denote the id of a subsystem that this handle belongs to, and
the lower 4 bytes are used to denote the id of a thread instance within
that subsystem. A reserved value 0 is used as a subsystem id for common
handles as they don't belong to a particular subsystem. The bytes 4-7 are
currently reserved and must be zero. In the future the number of bytes
used for the subsystem or handle ids might be increased.

When a particular userspace proccess collects coverage by via a common
handle, kcov will collect coverage for each code section that is annotated
to use the common handle obtained as kcov_handle from the current
task_struct. However non common handles allow to collect coverage
selectively from different subsystems.

.. code-block:: c

    struct kcov_remote_arg {
	__u32		trace_mode;
	__u32		area_size;
	__u32		num_handles;
	__aligned_u64	common_handle;
	__aligned_u64	handles[0];
    };

    #define KCOV_INIT_TRACE			_IOR('c', 1, unsigned long)
    #define KCOV_DISABLE			_IO('c', 101)
    #define KCOV_REMOTE_ENABLE		_IOW('c', 102, struct kcov_remote_arg)

    #define COVER_SIZE	(64 << 10)

    #define KCOV_TRACE_PC	0

    #define KCOV_SUBSYSTEM_COMMON	(0x00ull << 56)
    #define KCOV_SUBSYSTEM_USB	(0x01ull << 56)

    #define KCOV_SUBSYSTEM_MASK	(0xffull << 56)
    #define KCOV_INSTANCE_MASK	(0xffffffffull)

    static inline __u64 kcov_remote_handle(__u64 subsys, __u64 inst)
    {
	if (subsys & ~KCOV_SUBSYSTEM_MASK || inst & ~KCOV_INSTANCE_MASK)
		return 0;
	return subsys | inst;
    }

    #define KCOV_COMMON_ID	0x42
    #define KCOV_USB_BUS_NUM	1

    int main(int argc, char **argv)
    {
	int fd;
	unsigned long *cover, n, i;
	struct kcov_remote_arg *arg;

	fd = open("/sys/kernel/debug/kcov", O_RDWR);
	if (fd == -1)
		perror("open"), exit(1);
	if (ioctl(fd, KCOV_INIT_TRACE, COVER_SIZE))
		perror("ioctl"), exit(1);
	cover = (unsigned long*)mmap(NULL, COVER_SIZE * sizeof(unsigned long),
				     PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
	if ((void*)cover == MAP_FAILED)
		perror("mmap"), exit(1);

	/* Enable coverage collection via common handle and from USB bus #1. */
	arg = calloc(1, sizeof(*arg) + sizeof(uint64_t));
	if (!arg)
		perror("calloc"), exit(1);
	arg->trace_mode = KCOV_TRACE_PC;
	arg->area_size = COVER_SIZE;
	arg->num_handles = 1;
	arg->common_handle = kcov_remote_handle(KCOV_SUBSYSTEM_COMMON,
							KCOV_COMMON_ID);
	arg->handles[0] = kcov_remote_handle(KCOV_SUBSYSTEM_USB,
						KCOV_USB_BUS_NUM);
	if (ioctl(fd, KCOV_REMOTE_ENABLE, arg))
		perror("ioctl"), free(arg), exit(1);
	free(arg);

	/*
	 * Here the user needs to trigger execution of a kernel code section
	 * that is either annotated with the common handle, or to trigger some
	 * activity on USB bus #1.
	 */
	sleep(2);

	n = __atomic_load_n(&cover[0], __ATOMIC_RELAXED);
	for (i = 0; i < n; i++)
		printf("0x%lx\n", cover[i + 1]);
	if (ioctl(fd, KCOV_DISABLE, 0))
		perror("ioctl"), exit(1);
	if (munmap(cover, COVER_SIZE * sizeof(unsigned long)))
		perror("munmap"), exit(1);
	if (close(fd))
		perror("close"), exit(1);
	return 0;
    }
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