Merge 4.9.258 into android-4.9-q

Changes in 4.9.258
	mm: memcontrol: fix NULL pointer crash in test_clear_page_writeback()
	fgraph: Initialize tracing_graph_pause at task creation
	remoteproc: qcom_q6v5_mss: Validate MBA firmware size before load
	af_key: relax availability checks for skb size calculation
	iwlwifi: mvm: take mutex for calling iwl_mvm_get_sync_time()
	iwlwifi: pcie: add a NULL check in iwl_pcie_txq_unmap
	iwlwifi: mvm: guard against device removal in reprobe
	SUNRPC: Move simple_get_bytes and simple_get_netobj into private header
	SUNRPC: Handle 0 length opaque XDR object data properly
	lib/string: Add strscpy_pad() function
	include/trace/events/writeback.h: fix -Wstringop-truncation warnings
	memcg: fix a crash in wb_workfn when a device disappears
	futex: Ensure the correct return value from futex_lock_pi()
	futex: Change locking rules
	futex: Cure exit race
	squashfs: add more sanity checks in id lookup
	squashfs: add more sanity checks in inode lookup
	squashfs: add more sanity checks in xattr id lookup
	tracing: Do not count ftrace events in top level enable output
	tracing: Check length before giving out the filter buffer
	ovl: skip getxattr of security labels
	ARM: dts: lpc32xx: Revert set default clock rate of HCLK PLL
	memblock: do not start bottom-up allocations with kernel_end
	bpf: Check for integer overflow when using roundup_pow_of_two()
	netfilter: xt_recent: Fix attempt to update deleted entry
	xen/netback: avoid race in xenvif_rx_ring_slots_available()
	netfilter: conntrack: skip identical origin tuple in same zone only
	h8300: fix PREEMPTION build, TI_PRE_COUNT undefined
	usb: dwc3: ulpi: fix checkpatch warning
	usb: dwc3: ulpi: Replace CPU-based busyloop with Protocol-based one
	net/vmw_vsock: improve locking in vsock_connect_timeout()
	net: watchdog: hold device global xmit lock during tx disable
	vsock/virtio: update credit only if socket is not closed
	vsock: fix locking in vsock_shutdown()
	x86/build: Disable CET instrumentation in the kernel for 32-bit too
	trace: Use -mcount-record for dynamic ftrace
	tracing: Fix SKIP_STACK_VALIDATION=1 build due to bad merge with -mrecord-mcount
	tracing: Avoid calling cc-option -mrecord-mcount for every Makefile
	Xen/x86: don't bail early from clear_foreign_p2m_mapping()
	Xen/x86: also check kernel mapping in set_foreign_p2m_mapping()
	Xen/gntdev: correct dev_bus_addr handling in gntdev_map_grant_pages()
	Xen/gntdev: correct error checking in gntdev_map_grant_pages()
	xen/arm: don't ignore return errors from set_phys_to_machine
	xen-blkback: don't "handle" error by BUG()
	xen-netback: don't "handle" error by BUG()
	xen-scsiback: don't "handle" error by BUG()
	xen-blkback: fix error handling in xen_blkbk_map()
	scsi: qla2xxx: Fix crash during driver load on big endian machines
	kvm: check tlbs_dirty directly
	Linux 4.9.258

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5302387bd8a7d3610002bf86bc9612261f687217