Merge 3.18.93 into android-3.18

Changes in 3.18.93
	gcov: disable for COMPILE_TEST
	scsi: sg: disable SET_FORCE_LOW_DMA
	futex: Prevent overflow by strengthen input validation
	ALSA: pcm: Remove yet superfluous WARN_ON()
	ALSA: hda - Apply the existing quirk to iMac 14,1
	af_key: fix buffer overread in verify_address_len()
	af_key: fix buffer overread in parse_exthdrs()
	pipe: avoid round_pipe_size() nr_pages overflow on 32-bit
	Input: 88pm860x-ts - fix child-node lookup
	Input: twl6040-vibra - fix DT node memory management
	Input: twl6040-vibra - fix child-node lookup
	Input: twl4030-vibra - fix ERROR: Bad of_node_put() warning
	Input: twl4030-vibra - fix sibling-node lookup
	phy: work around 'phys' references to usb-nop-xceiv devices
	ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7
	dm btree: fix serious bug in btree_split_beneath()
	dm thin metadata: THIN_MAX_CONCURRENT_LOCKS should be 6
	arm64: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls
	MIPS: AR7: ensure the port type's FCR value is used
	x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels
	usbip: Fix implicit fallthrough warning
	can: af_can: can_rcv(): replace WARN_ONCE by pr_warn_once
	can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once
	mm/mmap.c: do not blow on PROT_NONE MAP_FIXED holes in the stack
	hwpoison, memcg: forcibly uncharge LRU pages
	ipc: msg, make msgrcv work with LONG_MIN
	netfilter: nf_ct_expect: remove the redundant slash when policy name is empty
	netfilter: restart search if moved to other chain
	netfilter: nf_conntrack_sip: extend request line validation
	netfilter: nfnetlink_cthelper: Add missing permission checks
	netfilter: xt_osf: Add missing permission checks
	reiserfs: fix race in prealloc discard
	reiserfs: don't preallocate blocks for extended attributes
	fs/fcntl: f_setown, avoid undefined behaviour
	scsi: libiscsi: fix shifting of DID_REQUEUE host byte
	eventpoll.h: add missing epoll event masks
	x86/microcode/intel: Extend BDW late-loading further with LLC size check
	net: tcp: close sock if net namespace is exiting
	dccp: don't restart ccid2_hc_tx_rto_expire() if sk in closed state
	net: igmp: fix source address check for IGMPv3 reports
	tcp: __tcp_hdrlen() helper
	net: qdisc_pkt_len_init() should be more robust
	pppoe: take ->needed_headroom of lower device into account on xmit
	sctp: do not allow the v4 socket to bind a v4mapped v6 address
	sctp: return error if the asoc has been peeled off in sctp_wait_for_sndbuf
	vmxnet3: repair memory leak
	net: Allow neigh contructor functions ability to modify the primary_key
	ipv6: fix udpv6 sendmsg crash caused by too small MTU
	ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY
	hrtimer: Reset hrtimer cpu base proper on CPU hotplug
	Linux 3.18.93

Change-Id: I843828f3cd866fcde50bd17f9da8f22ae28cdc74
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>