The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/kernel/+/6f194c6418487f782eff6b61ea8ad15612a581eb

commit 6f194c6418487f782eff6b61ea8ad15612a581eb
Author: Guenter Roeck <groeck@chromium.org>
Date: Wed Sep 05 19:05:14 2018

CHROMIUM: Merge 'v4.4.154' into chromeos-4.4

Merge of v4.4.154 into chromeos-4.4

Conflicts:
    arch/arm64/mm/init.c

Changelog:
----------------------------------------------------------------
Alexander Sverdlin (1):
      i2c: davinci: Avoid zero value of CLKH

Andi Kleen (1):
      x86/spectre: Add missing family 6 check to microcode check

Andrey Ryabinin (1):
      fuse: Don't access pipe->buffers without pipe_lock()

Arnd Bergmann (1):
      ext4: sysfs: print ext4_super_block fields as little-endian

Bart Van Assche (2):
      scsi: sysfs: Introduce sysfs_{un,}break_active_protection()
      scsi: core: Avoid that SCSI device removal through sysfs triggers a deadlock

Bernd Edlinger (1):
      nl80211: Add a missing break in parse_station_flags

Calvin Walton (1):
      tools/power turbostat: Read extended processor family from CPUID

Claudio Imbrenda (1):
      s390/kvm: fix deadlock when killed by oom

Colin Ian King (1):
      drivers: net: lmc: fix case value for target abort error

Dan Carpenter (1):
      pinctrl: freescale: off by one in imx1_pinconf_group_dbg_show()

Eric Sandeen (1):
      ext4: reset error code in ext4_find_entry in fallback

Ethan Zhao (1):
      sched/sysctl: Check user input value of sysctl_sched_time_avg

Eugeniu Rosca (1):
      usb: gadget: f_uac2: fix endianness of 'struct cntrl_*_lay3'

Eyal Birger (1):
      vti6: fix PMTU caching and reporting on xmit

Florian Westphal (2):
      xfrm: free skb if nlsk pointer is NULL
      atl1c: reserve min skb headroom

Govindarajulu Varadarajan (1):
      enic: handle mtu change for vf properly

Greg Hackmann (1):
      arm64: mm: check for upper PAGE_SHIFT bits in pfn_valid()

Greg Kroah-Hartman (1):
      Linux 4.4.154

Guenter Roeck (2):
      media: staging: omap4iss: Include asm/cacheflush.h after generic includes
      Merge remote-tracking branch 'origin/linux/v4.4.154' into merge/chromeos-4.4-v4.4.154

Gustavo A. R. Silva (1):
      ASoC: sirf: Fix potential NULL pointer dereference

Jerome Brunet (1):
      ASoC: dpcm: don't merge format from invalid codec dai

Jia-Ju Bai (2):
      usb: gadget: r8a66597: Fix two possible sleep-in-atomic-context bugs in init_controller()
      usb: gadget: r8a66597: Fix a possible sleep-in-atomic-context bugs in r8a66597_queue()

Jim Gill (1):
      scsi: vmw_pvscsi: Return DID_RESET for status SAM_STAT_COMMAND_TERMINATED

Johannes Thumshirn (1):
      scsi: fcoe: drop frames in ELS LOGO error path

Josef Bacik (1):
      btrfs: don't leak ret from do_chunk_alloc

Julian Wiedmann (1):
      s390/qdio: reset old sbal_state flags

Kiran Kumar Modukuri (3):
      fscache: Allow cancelled operations to be enqueued
      cachefiles: Fix refcounting bug in backing-file read monitoring
      cachefiles: Wait rather than BUG'ing on "Unexpected object collision"

Kirill Tkhai (1):
      fuse: Add missed unlock_page() to fuse_readpages_fill()

Len Brown (1):
      tools/power turbostat: fix -S on UP systems

Li Wang (1):
      zswap: re-check zswap_is_full() after do zswap_shrink()

Lucas Stach (2):
      drm/imx: imx-ldb: disable LDB on driver bind
      drm/imx: imx-ldb: check if channel is enabled before printing warning

Maciej W. Rozycki (1):
      MIPS: Correct the 64-bit DSP accumulator register size

Martin Schwidefsky (1):
      s390: fix br_r1_trampoline for machines without exrl

Masami Hiramatsu (2):
      selftests/ftrace: Add snapshot and tracing_on test case
      kprobes: Make list and blacklist root user read only

Mike Christie (1):
      iscsi target: fix session creation failure handling

Miklos Szeredi (4):
      fuse: fix double request_end()
      fuse: fix unlocked access to processing queue
      fuse: umount should wait for all requests
      fuse: Fix oops at process_init_reply()

Mikulas Patocka (3):
      udl-kms: change down_interruptible to down
      udl-kms: handle allocation failure
      udl-kms: fix crash due to uninitialized memory

Nicholas Mc Guire (2):
      can: mpc5xxx_can: check of_iomap return before use
      cifs: check kmalloc before use

Nick Desaulniers (1):
      x86/irqflags: Mark native_restore_fl extern inline

Paul Burton (1):
      MIPS: lib: Provide MIPS64r6 __multi3() for GCC < 7

Peter Senna Tschudin (1):
      tools: usb: ffs-test: Fix build on big endian systems

Punit Agrawal (2):
      KVM: arm/arm64: Skip updating PTE entry if no change
      KVM: arm/arm64: Skip updating PMD entry if no change

Rafał Miłecki (1):
      Revert "MIPS: BCM47XX: Enable 74K Core ExternalSync for PCIe erratum"

Randy Dunlap (4):
      usb/phy: fix PPC64 build errors in phy-fsl-usb.c
      net: prevent ISA drivers from building on PPC32
      arc: fix build errors in arc/include/asm/delay.h
      arc: fix type warnings in arc/mm/cache.c

Rian Hunter (1):
      x86/process: Re-export start_thread()

Scott Bauer (1):
      cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status

Sean Paul (1):
      drm/bridge: adv7511: Reset registers on hotplug

Sebastian Ott (1):
      s390/pci: fix out of bounds access during irq setup

Shubhrajyoti Datta (1):
      net: axienet: Fix double deregister of mdio

Steve French (3):
      cifs: add missing debug entries for kconfig options
      smb3: Do not send SMB3 SET_INFO if nothing changed
      smb3: don't request leases in symlink creation and query

Sudarsana Reddy Kalluru (2):
      qed: Fix possible race for the link state value.
      bnx2x: Fix invalid memory access in rss hash config path.

Theodore Ts'o (1):
      ext4: check for NUL characters in extended attribute's name

Tommi Rantala (1):
      xfrm: fix missing dst_release() after policy blocking lbcast and multicast

Varun Prakash (1):
      scsi: libiscsi: fix possible NULL pointer dereference in case of TMF

Vlastimil Babka (3):
      x86/speculation/l1tf: Fix overflow in l1tf_pfn_limit() on 32bit
      x86/speculation/l1tf: Fix off-by-one error when warning that system has too much RAM
      x86/speculation/l1tf: Suggest what to do on systems with too much RAM

YueHaibing (1):
      net: caif: Add a missing rcu_read_unlock() in caif_flow_cb

jie@chenjie6@huwei.com (1):
      mm/memory.c: check return value of ioremap_prot

mpubbise@codeaurora.org (1):
      mac80211: add stations tied to AP_VLANs during hw reconfig

yujuan.qi (1):
      Cipso: cipso_v4_optptr enter infinite loop

 Makefile                                           |  2 +-
 arch/arc/include/asm/delay.h                       |  3 +
 arch/arc/mm/cache.c                                |  7 +-
 arch/arm/kvm/mmu.c                                 | 42 +++++++++---
 arch/arm64/mm/init.c                               |  6 +-
 arch/mips/bcm47xx/setup.c                          |  6 --
 arch/mips/include/asm/mipsregs.h                   |  3 -
 arch/mips/include/asm/processor.h                  |  2 +-
 arch/mips/kernel/ptrace.c                          |  2 +-
 arch/mips/kernel/ptrace32.c                        |  2 +-
 arch/mips/lib/multi3.c                             |  6 +-
 arch/s390/include/asm/qdio.h                       |  1 -
 arch/s390/mm/fault.c                               |  2 +
 arch/s390/net/bpf_jit_comp.c                       |  2 -
 arch/s390/pci/pci.c                                |  2 +
 arch/x86/include/asm/irqflags.h                    |  3 +-
 arch/x86/include/asm/processor.h                   |  4 +-
 arch/x86/kernel/cpu/bugs.c                         |  4 ++
 arch/x86/kernel/cpu/intel.c                        |  3 +
 arch/x86/kernel/process_64.c                       |  1 +
 arch/x86/mm/init.c                                 |  4 +-
 arch/x86/mm/mmap.c                                 |  2 +-
 drivers/cdrom/cdrom.c                              |  2 +-
 drivers/gpu/drm/i2c/adv7511.c                      | 12 ++++
 drivers/gpu/drm/imx/imx-ldb.c                      |  9 ++-
 drivers/gpu/drm/udl/udl_fb.c                       |  2 +-
 drivers/gpu/drm/udl/udl_main.c                     | 35 +++++-----
 drivers/i2c/busses/i2c-davinci.c                   |  8 ++-
 drivers/net/can/mscan/mpc5xxx_can.c                |  5 ++
 drivers/net/ethernet/3com/Kconfig                  |  2 +-
 drivers/net/ethernet/amd/Kconfig                   |  4 +-
 drivers/net/ethernet/atheros/atl1c/atl1c_main.c    |  1 +
 .../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c    | 13 +++-
 drivers/net/ethernet/cirrus/Kconfig                |  1 +
 drivers/net/ethernet/cisco/enic/enic_main.c        | 78 ++++++++--------------
 drivers/net/ethernet/qlogic/qed/qed_mcp.c          |  1 +
 drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c  |  1 +
 drivers/net/wan/lmc/lmc_main.c                     |  2 +-
 drivers/pinctrl/freescale/pinctrl-imx1-core.c      |  2 +-
 drivers/s390/cio/qdio_main.c                       |  5 +-
 drivers/scsi/fcoe/fcoe_ctlr.c                      |  4 +-
 drivers/scsi/libiscsi.c                            | 12 ++--
 drivers/scsi/scsi_sysfs.c                          | 20 +++++-
 drivers/scsi/vmw_pvscsi.c                          | 11 ++-
 drivers/staging/media/omap4iss/iss_video.c         |  3 +-
 drivers/target/iscsi/iscsi_target_login.c          | 35 ++++++----
 drivers/usb/gadget/function/f_uac2.c               | 20 +++---
 drivers/usb/gadget/udc/r8a66597-udc.c              |  6 +-
 drivers/usb/phy/phy-fsl-usb.c                      |  4 +-
 fs/btrfs/extent-tree.c                             |  2 +-
 fs/cachefiles/namei.c                              |  1 -
 fs/cachefiles/rdwr.c                               | 17 +++--
 fs/cifs/cifs_debug.c                               | 30 +++++++--
 fs/cifs/inode.c                                    |  2 +
 fs/cifs/link.c                                     |  4 +-
 fs/cifs/sess.c                                     |  6 ++
 fs/cifs/smb2inode.c                                |  2 +-
 fs/ext4/namei.c                                    |  1 +
 fs/ext4/sysfs.c                                    | 13 +++-
 fs/ext4/xattr.c                                    |  2 +
 fs/fscache/operation.c                             |  6 +-
 fs/fuse/dev.c                                      | 39 +++++++++--
 fs/fuse/file.c                                     |  1 +
 fs/fuse/fuse_i.h                                   |  1 +
 fs/fuse/inode.c                                    | 23 +++----
 fs/sysfs/file.c                                    | 44 ++++++++++++
 include/linux/sysfs.h                              | 14 ++++
 kernel/kprobes.c                                   |  4 +-
 kernel/sysctl.c                                    |  3 +-
 mm/memory.c                                        |  3 +
 mm/zswap.c                                         |  9 +++
 net/caif/caif_dev.c                                |  4 +-
 net/ipv4/cipso_ipv4.c                              | 12 +++-
 net/ipv6/ip6_vti.c                                 | 11 +--
 net/mac80211/util.c                                |  3 +-
 net/wireless/nl80211.c                             |  1 +
 net/xfrm/xfrm_policy.c                             |  3 +
 net/xfrm/xfrm_user.c                               | 10 +--
 sound/soc/sirf/sirf-usp.c                          |  7 +-
 sound/soc/soc-pcm.c                                |  8 +++
 tools/power/x86/turbostat/turbostat.c              |  8 +--
 .../selftests/ftrace/test.d/00basic/snapshot.tc    | 28 ++++++++
 tools/usb/ffs-test.c                               | 19 +++++-
 83 files changed, 513 insertions(+), 235 deletions(-)
 create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc

BUG= chromium:880916 
TEST=Build and test on various affected systems

Change-Id: I23c62e7c34bbdf5d0492f8ffe189a231f3fd2bca
Signed-off-by: Guenter Roeck <groeck@chromium.org>

[modify] https://crrev.com/6f194c6418487f782eff6b61ea8ad15612a581eb/arch/arm64/mm/init.c