Trusty update to 3.16.7-ckt18 stable release

[Luis Henriques]

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from Linus' tree or in a minimally
       backported form of that patch. The 3.16.7-ckt18 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://kernel.ubuntu.com/ubuntu/linux.git

    TEST CASE: TBD

       The following patches are in the 3.16.7-ckt18 stable release:

ipv6: addrconf: validate new MTU before applying it
[media] v4l: omap3isp: Fix sub-device power management code
[media] rc-core: fix remove uevent generation
HID: cp2112: fix I2C_SMBUS_BYTE write
HID: cp2112: fix byte order in SMBUS operations
xtensa: fix threadptr reload on return to userspace
ARM: OMAP2+: DRA7: clockdomain: change l4per2_7xx_clkdm to SW_WKUP
mac80211: enable assoc check for mesh interfaces
PCI: Add dev_flags bit to access VPD through function 0
PCI: Add VPD function 0 quirk for Intel Ethernet devices
staging: comedi: usbduxsigma: don't clobber ai_timer in command test
staging: comedi: usbduxsigma: don't clobber ao_timer in command test
clk: exynos4: Fix wrong clock for Exynos4x12 ADC
usb: dwc3: ep0: Fix mem corruption on OUT transfers of more than 512 bytes
Doc: ABI: testing: configfs-usb-gadget-loopback
Doc: ABI: testing: configfs-usb-gadget-sourcesink
serial: 8250_pci: Add support for Pericom PI7C9X795[1248]
KVM: MMU: fix validation of mmio page fault
auxdisplay: ks0108: fix refcount
devres: fix devres_get()
iio: adis16400: Fix adis16448 gyroscope scale
iio: Add inverse unit conversion macros
iio: adis16480: Fix scale factors
ideapad-laptop: Add Lenovo Yoga 3 14 to no_hw_rfkill dmi list
ASoC: rt5640: fix line out no sound issue
iio: industrialio-buffer: Fix iio_buffer_poll return value
iio: event: Remove negative error code from iio_event_poll
NFSv4: don't set SETATTR for O_RDONLY|O_EXCL
unshare: Unsharing a thread does not require unsharing a vm
fs: Set the size of empty dirs to 0.
x86/mce: Reenable CMCI banks when swiching back to interrupt mode
ASoC: adav80x: Remove .read_flag_mask setting from adav80x_regmap_config
regulator: pbias: Fix broken pbias disable functionality
serial: 8250: don't bind to SMSC IrCC IR port
serial: 8250: bind to ALi Fast Infrared Controller (ALI5123)
staging: comedi: adl_pci7x3x: fix digital output on PCI-7230
blk-mq: fix buffer overflow when reading sysfs file of 'pending'
xtensa: fix kernel register spilling
NFS: nfs_set_pgio_error sometimes misses errors
NFS: Fix a NULL pointer dereference of migration recovery ops for v4.2 client
usb: host: ehci-sys: delete useless bus_to_hcd conversion
USB: symbolserial: Use usb_get_serial_port_data
USB: ftdi_sio: Added custom PID for CustomWare products
USB: qcserial: add HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module
igb: Fix oops caused by missing queue pairing
HID: usbhid: Fix the check for HID_RESET_PENDING in hid_io_error
eCryptfs: Invalidate dcache entries when lower i_nlink is zero
libxfs: readahead of dir3 data blocks should use the read verifier
xfs: Fix xfs_attr_leafblock definition
arm64: kconfig: Move LIST_POISON to a safe value
Btrfs: check if previous transaction aborted to avoid fs corruption
ARM: orion5x: fix legacy orion5x IRQ numbers
DRM - radeon: Don't link train DisplayPort on HPD until we get the dpcd
xfs: Fix file type directory corruption for btree directories
sched: Fix cpu_active_mask/cpu_online_mask race
rtlwifi: rtl8192cu: Add new device ID
of/address: Don't loop forever in of_find_matching_node_by_address().
drivercore: Fix unregistration path of platform devices
arm64: flush FP/SIMD state correctly after execve()
xfs: return errors from partial I/O failures to files
ALSA: usb-audio: correct the value cache check.
IB/qib: Change lkey table allocation to support more MRs
drm/radeon/atom: Send out the full AUX address
tg3: Fix temperature reporting
drm/i915: Always mark the object as dirty when used by the GPU
Add radeon suspend/resume quirk for HP Compaq dc5750.
IB/uverbs: reject invalid or unknown opcodes
hpfs: update ctime and mtime on directory modification
Input: evdev - do not report errors form flush()
crypto: ghash-clmulni: specify context size for ghash async algorithm
mm: check if section present during memory block registering
fs: create and use seq_show_option for escaping
ALSA: hda - Enable headphone jack detect on old Fujitsu laptops
ALSA: hda - Use ALC880_FIXUP_FUJITSU for FSC Amilo M1437
rtc: s5m: fix to update ctrl register
scsi: fix scsi_error_handler vs. scsi_host_dev_release race
parisc: Use double word condition in 64bit CAS operation
vmscan: fix increasing nr_isolated incurred by putback unevictable pages
drm/i915: Limit the number of loops for reading a split 64bit register
hfs,hfsplus: cache pages correctly between bnode_create and bnode_free
hfs: fix B-tree corruption after insertion at position 0
drm/qxl: validate monitors config modes
PCI: Fix TI816X class code quirk
Input: ambakmi - fix system PM by converting to modern callbacks
svcrdma: Fix send_reply() scatter/gather set-up
x86/mm: Initialize pmd_idx in page_table_range_init_count()
net: bcmgenet: Use correct dev_id for free_irq
powerpc/rtas: Introduce rtas_get_sensor_fast() for IRQ handlers
clk: versatile: off by one in clk_sp810_timerclken_of_get()
usb: gadget: m66592-udc: forever loop in set_feature()
windfarm: decrement client count when unregistering
perf hists: Update the column width for the "srcline" sort key
batman-adv: Make DAT capability changes atomic
batman-adv: Make NC capability changes atomic
batman-adv: Make TT capability changes atomic
batman-adv: fix multicast counter when purging originators
batman-adv: fix counter for multicast supporting nodes
batman-adv: Make MCAST capability changes atomic
batman-adv: Fix potential synchronization issues in mcast tvlv handler
batman-adv: Fix potentially broken skb network header access
net: fix endian check warning in etherdevice.h
powerpc/mm: Fix pte_pagesize_index() crash on 4K w/64K hash
mtd: pxa3xx_nand: add a default chunk size
ath10k: fix dma_mapping_error() handling
mmc: sdhci: also get preset value and driver type for MMC_DDR52
perf stat: Get correct cpu id for print_aggr
ASoC: spear_pcm: Use devm_snd_dmaengine_pcm_register to fix resource leak
IB/mlx4: Fix potential deadlock when sending mad to wire
IB/mlx4: Forbid using sysfs to change RoCE pkeys
IB/mlx4: Use correct SL on AH query under RoCE
IB/uverbs: Fix race between ib_uverbs_open and remove_one
mmc: core: fix race condition in mmc_wait_data_done
ipv6: fix exthdrs offload registration in out_rt path
task_work: remove fifo ordering guarantee
fixed_phy: pass 'irq' to fixed_phy_add()
netlink, mmap: fix edge-case leakages in nf queue zero-copy
scsi_dh: fix randconfig build error
md: flush ->event_work before stopping array.
md/raid10: always set reshape_safe when initializing reshape_position.
perf/x86: Fix copy_from_user_nmi() return if range is not ok
ext4: fix loss of delalloc extent info in ext4_zero_range()
powerpc/MSI: Fix race condition in tearing down MSI interrupts
UBI: block: Add missing cache flushes
usbnet: Get EVENT_NO_RUNTIME_PM bit before it is cleared
net/ipv6: Correct PIM6 mrt_lock handling
netlink, mmap: transform mmap skb into full skb on taps
sctp: fix race on protocol/netns initialization
openvswitch: Zero flows on allocation.
fib_rules: fix fib rule dumps across multiple skbs
parisc: Filter out spurious interrupts in PA-RISC irq handler
Linux 3.16.7-ckt18

The following patches from 3.16.7-ckt18 were already applied to the Utopic kernel:

virtio-net: drop NETIF_F_FRAGLIST
RDS: verify the underlying transport exists before creating a connection