Merge 3.18.41 into android-3.18

Changes in 3.18.41:
	powerpc/eeh: eeh_pci_enable(): fix checking of post-request state
	tcp: make challenge acks less predictable
	mac80211: fix purging multicast PS buffer queue
	USB: serial: option: add D-Link DWM-156/A3
	USB: serial: ftdi_sio: add PIDs for Ivium Technologies devices
	USB: serial: ftdi_sio: add device ID for WICED USB UART dev board
	USB: serial: option: add support for Telit LE920A4
	USB: serial: fix memleak in driver-registration error path
	aacraid: Check size values after double-fetch from user
	crypto: caam - fix non-hmac hashes
	usb: hub: Fix unbalanced reference count/memory leak/deadlocks
	s390/dasd: fix hanging device after clear subchannel
	usb: dwc3: gadget: increment request->actual once
	usb: dwc3: gadget: fix for short pkts during chained xfers
	usb: dwc3: gadget: always cleanup all TRBs
	drm/i915: fix aliasing_ppgtt leak
	usb: misc: usbtest: add fix for driver hang
	cdc-acm: fix wrong pipe type on rx interrupt xfers
	xhci: always handle "Command Ring Stopped" events
	usb: xhci: Fix panic if disconnect
	ARC: Call trace_hardirqs_on() before enabling irqs
	ARC: Elide redundant setup of DMA callbacks
	uprobes: Fix the memcg accounting
	drm/radeon: don't use fractional dividers on RS[78]80 if SS is enabled
	drm/radeon: only apply the SS fractional workaround to RS[78]80
	bcache: register_bcache(): call blkdev_put() when cache_alloc() fails
	bcache: RESERVE_PRIO is too small by one when prio_buckets() is a power of two.
	gpio: Fix OF build problem on UM
	drm/radeon: fix radeon_move_blit on 32bit systems
	Input: i8042 - set up shared ps2_cmd_mutex for AUX ports
	ARCv2: STAR 9000808988: signals involving Delay Slot
	ARC: use correct offset in pt_regs for saving/restoring user mode r25
	ARC: Support syscall ABI v4
	ARC: export __udivdi3 for modules
	parisc: Fix order of EREFUSED define in errno.h
	drm: Reject page_flip for !DRIVER_MODESET
	Input: tegra-kbc - fix inverted reset logic
	ubifs: Fix assertion in layout_in_gaps()
	timekeeping: Cap array access in timekeeping_debug
	xenbus: don't look up transaction IDs for ordinary writes
	dm flakey: fix reads to be issued if drop_writes configured
	clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function
	fs/seq_file: fix out-of-bounds read
	net: fec: fix NULL pointer dereference in fec_enet_timeout_work
	PCI: Support PCIe devices with short cfg_size
	PCI: Add Netronome vendor and device IDs
	PCI: Limit config space size for Netronome NFP6000 family
	PCI: Add Netronome NFP4000 PF device ID
	PCI: Limit config space size for Netronome NFP4000
	Linux 3.18.41

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