Zesty update to v4.9.5 stable release

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from a mainline/stable Linux tree or
       a minimally backported form of that patch. The v4.9.5 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/

    TEST CASE: TBD

       The following patches from the v4.9.5 stable release shall be applied:

Input: xpad - use correct product id for x360w controllers
Input: i8042 - add Pegatron touchpad to noloop table
pinctrl: imx: fix imx_pinctrl_desc initialization
pinctrl: sh-pfc: r8a7795: Use lookup function for bias data
pinctrl: sh-pfc: Add helper to handle bias lookup table
regulator: tps65086: Fix 25mV ranges for BUCK regulators
regulator: axp20x: Fix axp809 ldo_io registration error on cold boot
drm/tegra: dpaux: Fix error handling
drm/vc4: Fix a couple error codes in vc4_cl_lookup_bos()
drm/savage: dereferencing an error pointer
selftests: do not require bash to run netsocktests testcase
selftests: do not require bash for the generated test
zram: revalidate disk under init_lock
zram: support BDI_CAP_STABLE_WRITES
dax: fix deadlock with DAX 4k holes
mm: pmd dirty emulation in page fault handler
mm: fix devm_memremap_pages crash, use mem_hotplug_{begin, done}
ocfs2: fix crash caused by stale lvb with fsdlm plugin
mm, memcg: fix the active list aging for lowmem requests when memcg is enabled
mm: support anonymous stable page
mm/slab.c: fix SLAB freelist randomization duplicate entries
mm/hugetlb.c: fix reservation race when freeing surplus pages
KVM: x86: fix emulation of "MOV SS, null selector"
KVM: eventfd: fix NULL deref irqbypass consumer
jump_labels: API for flushing deferred jump label updates
KVM: x86: flush pending lapic jump label updates on module unload
KVM: x86: fix NULL deref in vcpu_scan_ioapic
KVM: x86: add Align16 instruction flag
KVM: x86: add asm_safe wrapper
KVM: x86: emulate FXSAVE and FXRSTOR
KVM: x86: Introduce segmented_write_std
efi/libstub/arm*: Pass latest memory map to the kernel
efi/x86: Prune invalid memory map entries and fix boot regression
x86/efi: Don't allocate memmap through memblock after mm_init()
nl80211: fix sched scan netlink socket owner destruction
gpio: Move freeing of GPIO hogs before numbing of the device
xfs: Timely free truncated dirty pages
bridge: netfilter: Fix dropping packets that moving through bridge interface
x86/cpu/AMD: Clean up cpu_llc_id assignment per topology feature
x86/bugs: Separate AMD E400 erratum and C1E bug
x86/CPU/AMD: Fix Bulldozer topology
wusbcore: Fix one more crypto-on-the-stack bug
usb: musb: fix runtime PM in debugfs
USB: serial: kl5kusb105: fix line-state error handling
USB: serial: ch341: fix initial modem-control state
USB: serial: ch341: fix resume after reset
USB: serial: ch341: fix open error handling
USB: serial: ch341: fix control-message error handling
USB: serial: ch341: fix open and resume after B0
Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data
i2c: print correct device invalid address
i2c: fix kernel memory disclosure in dev interface
fix a fencepost error in pipe_advance()
xhci: fix deadlock at host remove by running watchdog correctly
btrfs: fix crash when tracepoint arguments are freed by wq callbacks
ASoC: hdmi-codec: use unsigned type to structure members with bit-field
Revert "tty: serial: 8250: add CON_CONSDEV to flags"
vme: Fix wrong pointer utilization in ca91cx42_slave_get
pid: fix lockdep deadlock warning due to ucount_lock
mnt: Protect the mountpoint hashtable with mount_lock
drivers: char: mem: Fix thinkos in kmem address checks
dmaengine: omap-dma: Fix dynamic lch_map allocation
virtio_blk: avoid DMA to stack for the sense buffer
tty/serial: atmel: RS485 half duplex w/DMA: enable RX after TX is done
tty/serial: atmel_serial: BUG: stop DMA from transmitting in stop_tx
orinoco: Use shash instead of ahash for MIC calculations
sysrq: attach sysrq handler correctly for 32-bit kernel
extcon: return error code on failure
Clearing FIFOs in RS485 emulation mode causes subsequent transmits to break
sysctl: Drop reference added by grab_header in proc_sys_readdir
net/af_iucv: don't use paged skbs for TX on HiperSockets
drm/i915/gen9: Fix PCODE polling timeout in stable backport
drm: Clean up planes in atomic commit helper failure path
drm/radeon: update smc firmware selection for SI
drm/radeon: drop verde dpm quirks
drm/amdgpu: update si kicker smc firmware
drm/amdgpu: drop verde dpm quirks
USB: serial: ch341: fix modem-control and B0 handling
net/mlx5: Only cancel recovery work when cleaning up device
i2c: piix4: Avoid race conditions with IMC
x86/cpu: Fix bootup crashes by sanitizing the argument of the 'clearcpuid=' command-line option
nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too
btrfs: fix locking when we put back a delayed ref that's too new
btrfs: fix error handling when run_delayed_extent_op fails
pinctrl: meson: fix gpio request disabling other modes
NFS: fix typo in parameter description
pNFS: Fix race in pnfs_wait_on_layoutreturn
NFS: Fix a performance regression in readdir
NFSv4.1: nfs4_fl_prepare_ds must be careful about reporting success.
i2c: mux: pca954x: fix i2c mux selection caching
drm/i915/gen9: Fix PCODE polling during SAGV disabling
drm: avoid uninitialized timestamp use in wait_vblank
drm/panel: simple: Check against num_timings when setting preferred for timing
drm/i915: Move the min_pixclk[] handling to the end of readout
drm: Initialise drm_mm.head_node.allocated
remoteproc: qcom_wcnss: Fix circular module dependency
remoteproc: st: Fix error return code in st_rproc_probe()
powerpc/64: Simplify adaptation to new ISA v3.00 HPTE format
cpufreq: powernv: Disable preemption while checking CPU throttling state
regulators: helpers: Fix handling of bypass_val_on in get_bypass_regmap
ACPI / CPPC: set an error code on probe error path
block: Change extern inline to static inline
block: cfq_cpd_alloc() should use @gfp
ACPI / APEI: Fix NMI notification handling
powercap/intel_rapl: fix and tidy up error handling
iw_cxgb4: Fix error return code in c4iw_rdev_open()
bq24190_charger: Fix PM runtime use for bq24190_battery_set_property
power: supply: bq27xxx_battery: Fix register map for BQ27510 and BQ27520
blk-mq: Always schedule hctx->next_cpu
bus: vexpress-config: fix device reference leak
powerpc/mm: Correct process and partition table max size
powerpc/ibmebus: Fix further device reference leaks
powerpc/ibmebus: Fix device reference leaks in sysfs interface
powerpc/powernv: Don't warn on PE init if unfreeze is unsupported
arm64: hugetlb: fix the wrong address for several functions
arm64: hugetlb: remove the wrong pmd check in find_num_contig()
arm64: hugetlb: fix the wrong return value for huge_ptep_set_access_flags
pinctrl: sh-pfc: Do not unconditionally support PIN_CONFIG_BIAS_DISABLE
Linux 4.9.5