Merge android-4.4.179 (aab9adb) into msm-4.4

* refs/heads/tmp-aab9adb
  Linux 4.4.179
  kernel/sysctl.c: fix out-of-bounds access when setting file-max
  Revert "locking/lockdep: Add debug_locks check in __lock_downgrade()"
  ALSA: info: Fix racy addition/deletion of nodes
  mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n
  device_cgroup: fix RCU imbalance in error case
  sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup
  Revert "kbuild: use -Oz instead of -Os when using clang"
  mac80211: do not call driver wake_tx_queue op during reconfig
  kprobes: Fix error check when reusing optimized probes
  kprobes: Mark ftrace mcount handler functions nokprobe
  x86/kprobes: Verify stack frame on kretprobe
  arm64: futex: Restore oldval initialization to work around buggy compilers
  crypto: x86/poly1305 - fix overflow during partial reduction
  ALSA: core: Fix card races between register and disconnect
  staging: comedi: ni_usb6501: Fix possible double-free of ->usb_rx_buf
  staging: comedi: ni_usb6501: Fix use of uninitialized mutex
  staging: comedi: vmk80xx: Fix possible double-free of ->usb_rx_buf
  staging: comedi: vmk80xx: Fix use of uninitialized semaphore
  io: accel: kxcjk1013: restore the range after resume.
  iio: adc: at91: disable adc channel interrupt in timeout case
  iio: ad_sigma_delta: select channel when reading register
  iio/gyro/bmg160: Use millidegrees for temperature scale
  KVM: x86: Don't clear EFER during SMM transitions for 32-bit vCPU
  tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete
  modpost: file2alias: check prototype of handler
  modpost: file2alias: go back to simple devtable lookup
  crypto: crypto4xx - properly set IV after de- and encrypt
  ipv4: ensure rcu_read_lock() in ipv4_link_failure()
  ipv4: recompile ip options in ipv4_link_failure
  tcp: tcp_grow_window() needs to respect tcp_space()
  net: fou: do not use guehdr after iptunnel_pull_offloads in gue_udp_recv
  net: bridge: multicast: use rcu to access port list from br_multicast_start_querier
  net: atm: Fix potential Spectre v1 vulnerabilities
  bonding: fix event handling for stacked bonds
  appletalk: Fix compile regression
  ovl: fix uid/gid when creating over whiteout
  tpm/tpm_crb: Avoid unaligned reads in crb_recv()
  include/linux/swap.h: use offsetof() instead of custom __swapoffset macro
  lib/div64.c: off by one in shift
  appletalk: Fix use-after-free in atalk_proc_exit
  ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
  iommu/dmar: Fix buffer overflow during PCI bus notification
  crypto: sha512/arm - fix crash bug in Thumb2 build
  crypto: sha256/arm - fix crash bug in Thumb2 build
  cifs: fallback to older infolevels on findfirst queryinfo retry
  ACPI / SBS: Fix GPE storm on recent MacBookPro's
  ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms
  serial: uartps: console_setup() can't be placed to init section
  f2fs: fix to do sanity check with current segment number
  9p locks: add mount option for lock retry interval
  9p: do not trust pdu content for stat item size
  rsi: improve kernel thread handling to fix kernel panic
  ext4: prohibit fstrim in norecovery mode
  fix incorrect error code mapping for OBJECTID_NOT_FOUND
  x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error
  iommu/vt-d: Check capability before disabling protected memory
  x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors
  x86/hpet: Prevent potential NULL pointer dereference
  perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test()
  perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test
  perf evsel: Free evsel->counts in perf_evsel__exit()
  perf top: Fix error handling in cmd_top()
  tools/power turbostat: return the exit status of a command
  thermal/int340x_thermal: fix mode setting
  thermal/int340x_thermal: Add additional UUIDs
  ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration
  mmc: davinci: remove extraneous __init annotation
  IB/mlx4: Fix race condition between catas error reset and aliasguid flows
  ALSA: sb8: add a check for request_region
  ALSA: echoaudio: add a check for ioremap_nocache
  ext4: report real fs size after failed resize
  ext4: add missing brelse() in add_new_gdb_meta_bg()
  perf/core: Restore mmap record type correctly
  PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller
  xtensa: fix return_address
  sched/fair: Do not re-read ->h_load_next during hierarchical load calculation
  xen: Prevent buffer overflow in privcmd ioctl
  arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value
  ARM: dts: at91: Fix typo in ISC_D0 on PC9
  genirq: Respect IRQCHIP_SKIP_SET_WAKE in irq_chip_set_wake_parent()
  block: do not leak memory in bio_copy_user_iov()
  ASoC: fsl_esai: fix channel swap issue when stream starts
  include/linux/bitrev.h: fix constant bitrev
  ALSA: seq: Fix OOB-reads from strlcpy
  ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type
  net: ethtool: not call vzalloc for zero sized memory request
  netns: provide pure entropy for net_hash_mix()
  tcp: Ensure DCTCP reacts to losses
  sctp: initialize _pad of sockaddr_in before copying to user memory
  qmi_wwan: add Olicard 600
  openvswitch: fix flow actions reallocation
  net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock().
  ipv6: sit: reset ip header pointer in ipip6_rcv
  ipv6: Fix dangling pointer when ipv6 fragment
  tty: ldisc: add sysctl to prevent autoloading of ldiscs
  tty: mark Siemens R3964 line discipline as BROKEN
  lib/string.c: implement a basic bcmp
  x86/vdso: Drop implicit common-page-size linker flag
  x86: vdso: Use $LD instead of $CC to link
  x86/build: Specify elf_i386 linker emulation explicitly for i386 objects
  kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD
  binfmt_elf: switch to new creds when switching to new mm
  drm/dp/mst: Configure no_stop_bit correctly for remote i2c xfers
  dmaengine: tegra: avoid overflow of byte tracking
  x86/build: Mark per-CPU symbols as absolute explicitly for LLD
  wlcore: Fix memory leak in case wl12xx_fetch_firmware failure
  regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting
  media: s5p-jpeg: Check for fmt_ver_flag when doing fmt enumeration
  netfilter: physdev: relax br_netfilter dependency
  dmaengine: imx-dma: fix warning comparison of distinct pointer types
  hpet: Fix missing '=' character in the __setup() code of hpet_mmap_enable
  soc/tegra: fuse: Fix illegal free of IO base address
  hwrng: virtio - Avoid repeated init of completion
  media: mt9m111: set initial frame size other than 0x0
  tty: increase the default flip buffer limit to 2*640K
  ARM: avoid Cortex-A9 livelock on tight dmb loops
  mt7601u: bump supported EEPROM version
  soc: qcom: gsbi: Fix error handling in gsbi_probe()
  ASoC: fsl-asoc-card: fix object reference leaks in fsl_asoc_card_probe
  cdrom: Fix race condition in cdrom_sysctl_register
  fbdev: fbmem: fix memory access if logo is bigger than the screen
  bcache: improve sysfs_strtoul_clamp()
  bcache: fix input overflow to sequential_cutoff
  bcache: fix input overflow to cache set sysfs file io_error_halflife
  ALSA: PCM: check if ops are defined before suspending PCM
  ARM: 8833/1: Ensure that NEON code always compiles with Clang
  kprobes: Prohibit probing on bsearch()
  leds: lp55xx: fix null deref on firmware load failure
  media: mx2_emmaprp: Correct return type for mem2mem buffer helpers
  media: s5p-g2d: Correct return type for mem2mem buffer helpers
  media: s5p-jpeg: Correct return type for mem2mem buffer helpers
  media: sh_veu: Correct return type for mem2mem buffer helpers
  SoC: imx-sgtl5000: add missing put_device()
  perf test: Fix failure of 'evsel-tp-sched' test on s390
  scsi: megaraid_sas: return error when create DMA pool failed
  IB/mlx4: Increase the timeout for CM cache
  e1000e: Fix -Wformat-truncation warnings
  mmc: omap: fix the maximum timeout setting
  ARM: 8840/1: use a raw_spinlock_t in unwind
  coresight: etm4x: Add support to enable ETMv4.2
  scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
  usb: chipidea: Grab the (legacy) USB PHY by phandle first
  tools lib traceevent: Fix buffer overflow in arg_eval
  fs: fix guard_bio_eod to check for real EOD errors
  cifs: Fix NULL pointer dereference of devname
  dm thin: add sanity checks to thin-pool and external snapshot creation
  cifs: use correct format characters
  fs/file.c: initialize init_files.resize_wait
  f2fs: do not use mutex lock in atomic context
  ocfs2: fix a panic problem caused by o2cb_ctl
  mm/slab.c: kmemleak no scan alien caches
  mm/vmalloc.c: fix kernel BUG at mm/vmalloc.c:512!
  mm/page_ext.c: fix an imbalance with kmemleak
  mm/cma.c: cma_declare_contiguous: correct err handling
  enic: fix build warning without CONFIG_CPUMASK_OFFSTACK
  sysctl: handle overflow for file-max
  gpio: gpio-omap: fix level interrupt idling
  tracing: kdb: Fix ftdump to not sleep
  h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux-
  CIFS: fix POSIX lock leak and invalid ptr deref
  tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped
  Bluetooth: Fix decrementing reference count twice in releasing socket
  i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA
  mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified
  tty/serial: atmel: Add is_half_duplex helper
  lib/int_sqrt: optimize initial value compute
  ext4: cleanup bh release code in ext4_ind_remove_space()
  arm64: debug: Ensure debug handlers check triggering exception level
  arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals
  Make arm64 serial port config compatible with crosvm
  Fix merge issue with 4.4.178
  Fix merge issue with 4.4.177
  ANDROID: cuttlefish_defconfig: Enable CONFIG_OVERLAY_FS

Change-Id: I0d6e7b00f0198867803d5fe305ce13e205cc7518
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

diff --cc Makefile
Simple merge

diff --cc arch/arm/include/asm/processor.h
Simple merge

diff --cc arch/arm/kernel/smp.c
Simple merge

diff --cc arch/arm64/kernel/kgdb.c
index 814d0c5,f72743d..c98ca98
--- 1/arch/arm64/kernel/kgdb.c
--- 2/arch/arm64/kernel/kgdb.c
+++ b/arch/arm64/kernel/kgdb.c
@@@ -216,10 -215,12 +216,13 @@@ int kgdb_arch_handle_exception(int exce
  
  static int kgdb_brk_fn(struct pt_regs *regs, unsigned int esr)
  {
+       if (user_mode(regs))
+               return DBG_HOOK_ERROR;
+ 
        kgdb_handle_exception(1, SIGTRAP, 0, regs);
-       return 0;
+       return DBG_HOOK_HANDLED;
  }
 +NOKPROBE_SYMBOL(kgdb_brk_fn)
  
  static int kgdb_compiled_brk_fn(struct pt_regs *regs, unsigned int esr)
  {
@@@ -226,16 -230,17 +232,19 @@@
        compiled_break = 1;
        kgdb_handle_exception(1, SIGTRAP, 0, regs);
  
-       return 0;
+       return DBG_HOOK_HANDLED;
  }
 +NOKPROBE_SYMBOL(kgdb_compiled_brk_fn);
  
  static int kgdb_step_brk_fn(struct pt_regs *regs, unsigned int esr)
  {
+       if (user_mode(regs))
+               return DBG_HOOK_ERROR;
+ 
        kgdb_handle_exception(1, SIGTRAP, 0, regs);
-       return 0;
+       return DBG_HOOK_HANDLED;
  }
 +NOKPROBE_SYMBOL(kgdb_step_brk_fn);
  
  static struct break_hook kgdb_brkpt_hook = {
        .esr_mask       = 0xffffffff,

diff --cc arch/arm64/mm/fault.c
Simple merge

diff --cc arch/x86/boot/Makefile
Simple merge

diff --cc arch/x86/realmode/rm/Makefile
Simple merge

diff --cc block/bio.c
Simple merge

diff --cc drivers/char/Kconfig
Simple merge

diff --cc drivers/hwtracing/coresight/coresight-etm4x.c
Simple merge

diff --cc drivers/md/dm-thin.c
Simple merge

diff --cc drivers/scsi/scsi_scan.c
Simple merge

diff --cc drivers/video/fbdev/core/fbmem.c
Simple merge

diff --cc fs/buffer.c
Simple merge

diff --cc fs/cifs/file.c
Simple merge

diff --cc include/linux/swap.h
Simple merge

diff --cc kernel/events/core.c
Simple merge

diff --cc kernel/irq/chip.c
Simple merge

diff --cc kernel/sched/fair.c
Simple merge

diff --cc kernel/sysctl.c
index 682b444,28df035..43a049f
--- 1/kernel/sysctl.c
--- 2/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@@ -125,9 -125,10 +125,11 @@@ static int __maybe_unused neg_one = -1
  static int zero;
  static int __maybe_unused one = 1;
  static int __maybe_unused two = 2;
 +static int __maybe_unused three = 3;
  static int __maybe_unused four = 4;
+ static unsigned long zero_ul;
  static unsigned long one_ul = 1;
+ static unsigned long long_max = LONG_MAX;
  static int one_hundred = 100;
  #ifdef CONFIG_PRINTK
  static int ten_thousand = 10000;

diff --cc kernel/trace/trace.c
Simple merge

diff --cc mm/cma.c
Simple merge

diff --cc mm/page_ext.c
Simple merge

diff --cc mm/vmalloc.c
Simple merge

diff --cc mm/vmstat.c
Simple merge

diff --cc net/bluetooth/hci_sock.c
Simple merge

diff --cc net/ipv4/tcp_input.c
Simple merge

diff --cc sound/core/info.c
Simple merge

diff --cc sound/core/init.c
Simple merge

diff --cc sound/core/pcm_native.c
Simple merge

diff --cc tools/perf/util/evsel.c
Simple merge