Merge 4.9.126 into android-4.9

Changes in 4.9.126
	net: 6lowpan: fix reserved space for single frames
	net: mac802154: tx: expand tailroom if necessary
	9p/net: Fix zero-copy path in the 9p virtio transport
	spi: davinci: fix a NULL pointer dereference
	spi: spi-fsl-dspi: Fix imprecise abort on VF500 during probe
	drm/i915/userptr: reject zero user_size
	libertas: fix suspend and resume for SDIO connected cards
	mailbox: xgene-slimpro: Fix potential NULL pointer dereference
	powerpc/fadump: handle crash memory ranges array index overflow
	powerpc/pseries: Fix endianness while restoring of r3 in MCE handler.
	PCI: Add wrappers for dev_printk()
	powerpc/powernv/pci: Work around races in PCI bridge enabling
	cxl: Fix wrong comparison in cxl_adapter_context_get()
	ib_srpt: Fix a use-after-free in srpt_close_ch()
	RDMA/rxe: Set wqe->status correctly if an unexpected response is received
	fs/9p/xattr.c: catch the error of p9_client_clunk when setting xattr failed
	9p/virtio: fix off-by-one error in sg list bounds check
	net/9p/client.c: version pointer uninitialized
	net/9p/trans_fd.c: fix race-condition by flushing workqueue before the kfree()
	dm thin: stop no_space_timeout worker when switching to write-mode
	dm cache metadata: save in-core policy_hint_size to on-disk superblock
	uart: fix race between uart_put_char() and uart_shutdown()
	iio: ad9523: Fix displayed phase
	iio: ad9523: Fix return value for ad952x_store()
	vmw_balloon: fix inflation of 64-bit GFNs
	vmw_balloon: do not use 2MB without batching
	vmw_balloon: VMCI_DOORBELL_SET does not check status
	vmw_balloon: fix VMCI use when balloon built into kernel
	rtc: omap: fix potential crash on power off
	tracing: Do not call start/stop() functions when tracing_on does not change
	tracing/blktrace: Fix to allow setting same value
	uprobes: Use synchronize_rcu() not synchronize_sched()
	mfd: hi655x: Fix regmap area declared size for hi655x
	9p: fix multiple NULL-pointer-dereferences
	PM / sleep: wakeup: Fix build error caused by missing SRCU support
	KVM: VMX: fixes for vmentry_l1d_flush module parameter
	xtensa: limit offsets in __loop_cache_{all,page}
	xtensa: increase ranges in ___invalidate_{i,d}cache_all
	pnfs/blocklayout: off by one in bl_map_stripe()
	NFSv4 client live hangs after live data migration recovery
	ARM: tegra: Fix Tegra30 Cardhu PCA954x reset
	Replace magic for trusting the secondary keyring with #define
	Fix kexec forbidding kernels signed with keys in the secondary keyring to boot
	mm/tlb: Remove tlb_remove_table() non-concurrent condition
	iommu/vt-d: Add definitions for PFSID
	iommu/vt-d: Fix dev iotlb pfsid use
	osf_getdomainname(): use copy_to_user()
	sys: don't hold uts_sem while accessing userspace memory
	userns: move user access out of the mutex
	ubifs: Fix memory leak in lprobs self-check
	Revert "UBIFS: Fix potential integer overflow in allocation"
	ubifs: Check data node size before truncate
	ubifs: Fix synced_i_size calculation for xattr inodes
	pwm: tiehrpwm: Fix disabling of output of PWMs
	fb: fix lost console when the user unplugs a USB adapter
	udlfb: set optimal write delay
	getxattr: use correct xattr length
	libnvdimm: fix ars_status output length calculation
	printk/tracing: Do not trace printk_nmi_enter()
	bcache: release dc->writeback_lock properly in bch_writeback_thread()
	perf auxtrace: Fix queue resize
	crypto: vmx - Fix sleep-in-atomic bugs
	crypto: caam/jr - fix descriptor DMA unmapping
	fs/quota: Fix spectre gadget in do_quotactl
	Linux 4.9.126

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