Merge 4.9.312 into android-4.9

Changes in 4.9.312
	etherdevice: Adjust ether_addr* prototypes to silence -Wstringop-overead
	mm: page_alloc: fix building error on -Werror=array-compare
	gfs2: assign rgrp glock before compute_bitstructs
	ALSA: usb-audio: Clear MIDI port active flag after draining
	dmaengine: imx-sdma: Fix error checking in sdma_event_remap
	net/packet: fix packet_sock xmit return value checking
	netlink: reset network and mac headers in netlink_dump()
	ARM: vexpress/spc: Avoid negative array index when !SMP
	platform/x86: samsung-laptop: Fix an unsigned comparison which can never be negative
	ALSA: usb-audio: Fix undefined behavior due to shift overflowing the constant
	vxlan: fix error return code in vxlan_fdb_append
	cifs: Check the IOCB_DIRECT flag, not O_DIRECT
	brcmfmac: sdio: Fix undefined behavior due to shift overflowing the constant
	drm/msm/mdp5: check the return of kzalloc()
	ata: pata_marvell: Check the 'bmdma_addr' beforing reading
	dma: at_xdmac: fix a missing check on list iterator
	openvswitch: fix OOB access in reserve_sfa_size()
	ASoC: soc-dapm: fix two incorrect uses of list iterator
	e1000e: Fix possible overflow in LTR decoding
	ARC: entry: fix syscall_trace_exit argument
	ext4: limit length to bitmap_maxbytes - blocksize in punch_hole
	ext4: fix overhead calculation to account for the reserved gdt blocks
	ext4: force overhead calculation if the s_overhead_cluster makes no sense
	block/compat_ioctl: fix range check in BLKGETSIZE
	Linux 4.9.312

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I84c8b450a8439b3f313c980f4cac0b08e762503d