Merge 4.9.68 into android-4.9-o

Changes in 4.9.68
	bcache: only permit to recovery read error when cache device is clean
	bcache: recover data from backing when data is clean
	drm/fsl-dcu: avoid disabling pixel clock twice on suspend
	drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume()
	Revert "crypto: caam - get rid of tasklet"
	mm, oom_reaper: gather each vma to prevent leaking TLB entry
	uas: Always apply US_FL_NO_ATA_1X quirk to Seagate devices
	usb: quirks: Add no-lpm quirk for KY-688 USB 3.1 Type-C Hub
	serial: 8250_pci: Add Amazon PCI serial device ID
	s390/runtime instrumentation: simplify task exit handling
	USB: serial: option: add Quectel BG96 id
	ima: fix hash algorithm initialization
	s390/pci: do not require AIS facility
	selftests/x86/ldt_get: Add a few additional tests for limits
	staging: greybus: loopback: Fix iteration count on async path
	m68k: fix ColdFire node shift size calculation
	serial: 8250_fintek: Fix rs485 disablement on invalid ioctl()
	staging: rtl8188eu: avoid a null dereference on pmlmepriv
	spi: sh-msiof: Fix DMA transfer size check
	spi: spi-axi: fix potential use-after-free after deregistration
	mmc: sdhci-msm: fix issue with power irq
	usb: phy: tahvo: fix error handling in tahvo_usb_probe()
	serial: 8250: Preserve DLD[7:4] for PORT_XR17V35X
	x86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt()
	EDAC, sb_edac: Fix missing break in switch
	sysrq : fix Show Regs call trace on ARM
	usbip: tools: Install all headers needed for libusbip development
	perf test attr: Fix ignored test case result
	kprobes/x86: Disable preemption in ftrace-based jprobes
	tools include: Do not use poison with C++
	iio: adc: ti-ads1015: add 10% to conversion wait time
	dax: Avoid page invalidation races and unnecessary radix tree traversals
	net/mlx4_en: Fix type mismatch for 32-bit systems
	l2tp: take remote address into account in l2tp_ip and l2tp_ip6 socket lookups
	dmaengine: stm32-dma: Set correct args number for DMA request from DT
	dmaengine: stm32-dma: Fix null pointer dereference in stm32_dma_tx_status
	usb: gadget: f_fs: Fix ExtCompat descriptor validation
	libcxgb: fix error check for ip6_route_output()
	net: systemport: Utilize skb_put_padto()
	net: systemport: Pad packet before inserting TSB
	ARM: OMAP2+: Fix WL1283 Bluetooth Baud Rate
	ARM: OMAP1: DMA: Correct the number of logical channels
	vti6: fix device register to report IFLA_INFO_KIND
	be2net: fix accesses to unicast list
	be2net: fix unicast list filling
	net/appletalk: Fix kernel memory disclosure
	libfs: Modify mount_pseudo_xattr to be clear it is not a userspace mount
	net: qrtr: Mark 'buf' as little endian
	mm: fix remote numa hits statistics
	mac80211: calculate min channel width correctly
	ravb: Remove Rx overflow log messages
	nfs: Don't take a reference on fl->fl_file for LOCK operation
	drm/exynos/decon5433: update shadow registers iff there are active windows
	drm/exynos/decon5433: set STANDALONE_UPDATE_F also if planes are disabled
	KVM: arm/arm64: Fix occasional warning from the timer work function
	mac80211: prevent skb/txq mismatch
	NFSv4: Fix client recovery when server reboots multiple times
	perf/x86/intel: Account interrupts for PEBS errors
	powerpc/mm: Fix memory hotplug BUG() on radix
	qla2xxx: Fix wrong IOCB type assumption
	drm/amdgpu: fix bug set incorrect value to vce register
	drm/exynos/decon5433: set STANDALONE_UPDATE_F on output enablement
	net: sctp: fix array overrun read on sctp_timer_tbl
	x86/fpu: Set the xcomp_bv when we fake up a XSAVES area
	drm/amdgpu: fix unload driver issue for virtual display
	mac80211: don't try to sleep in rate_control_rate_init()
	RDMA/qedr: Return success when not changing QP state
	RDMA/qedr: Fix RDMA CM loopback
	tipc: fix nametbl_lock soft lockup at module exit
	tipc: fix cleanup at module unload
	dmaengine: pl330: fix double lock
	tcp: correct memory barrier usage in tcp_check_space()
	i2c: i2c-cadence: Initialize configuration before probing devices
	nvmet: cancel fatal error and flush async work before free controller
	gtp: clear DF bit on GTP packet tx
	gtp: fix cross netns recv on gtp socket
	net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause
	net: thunderx: avoid dereferencing xcv when NULL
	be2net: fix initial MAC setting
	vfio/spapr: Fix missing mutex unlock when creating a window
	mm: avoid returning VM_FAULT_RETRY from ->page_mkwrite handlers
	xen-netfront: Improve error handling during initialization
	cec: initiator should be the same as the destination for, poll
	xen-netback: vif counters from int/long to u64
	net: fec: fix multicast filtering hardware setup
	dma-buf/dma-fence: Extract __dma_fence_is_later()
	dma-buf/sw-sync: Fix the is-signaled test to handle u32 wraparound
	dma-buf/sw-sync: Prevent user overflow on timeline advance
	dma-buf/sw-sync: Reduce irqsave/irqrestore from known context
	dma-buf/sw-sync: sync_pt is private and of fixed size
	dma-buf/sw-sync: Fix locking around sync_timeline lists
	dma-buf/sw-sync: Use an rbtree to sort fences in the timeline
	dma-buf/sw_sync: move timeline_fence_ops around
	dma-buf/sw_sync: clean up list before signaling the fence
	dma-fence: Clear fence->status during dma_fence_init()
	dma-fence: Wrap querying the fence->status
	dma-fence: Introduce drm_fence_set_error() helper
	dma-buf/sw_sync: force signal all unsignaled fences on dying timeline
	dma-buf/sync_file: hold reference to fence when creating sync_file
	dma-buf: Update kerneldoc for sync_file_create
	usb: hub: Cycle HUB power when initialization fails
	usb: xhci: fix panic in xhci_free_virt_devices_depth_first
	USB: core: Add type-specific length check of BOS descriptors
	USB: Increase usbfs transfer limit
	USB: devio: Prevent integer overflow in proc_do_submiturb()
	USB: usbfs: Filter flags passed in from user space
	usb: host: fix incorrect updating of offset
	xen-netfront: avoid crashing on resume after a failure in talk_to_netback()
	Linux 4.9.68

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>