Trusty update to 3.16.7-ckt22 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 a mainline/stable Linux tree or
       a minimally backported form of that patch. The 3.16.7-ckt22 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 from the 3.16.7-ckt22 stable release shall be applied:

iio: lpc32xx_adc: fix warnings caused by enabling unprepared clock
iio:ad5064: Make sure ad5064_i2c_write() returns 0 on success
iio: ad5064: Fix ad5629/ad5669 shift
iio:ad7793: Fix ad7785 product ID
x86/fpu: Fix 32-bit signal frame handling
iio: adc: xilinx: Fix VREFN scale
drm/i915: quirk backlight present on Macbook 4, 1
USB: qcserial: Add support for Quectel EC20 Mini PCIe module
USB: serial: option: add support for Novatel MiFi USB620L
USB: ti_usb_3410_5052: Add Honeywell HGI80 ID
drm/i915: get runtime PM reference around GEM set_caching IOCTL
drm/radeon: unconditionally set sysfs_initialized
USB: qcserial: Fix support for HP lt4112 LTE/HSPA+ Gobi 4G Modem
arm64: kernel: pause/unpause function graph tracer in cpu_suspend()
usb: dwc3: gadget: let us set lower max_speed
usb: chipidea: debug: disable usb irq while role switch
xhci: Workaround to get Intel xHCI reset working more reliably
xhci: Fix a race in usb2 LPM resume, blocking U3 for usb2 devices
x86/cpu: Fix SMAP check in PVOPS environments
arm64: restore bogomips information in /proc/cpuinfo
USB: option: add XS Stick W100-2 from 4G Systems
usblp: do not set TASK_INTERRUPTIBLE before lock
fat: fix fake_offset handling on error path
kernel/signal.c: unexport sigsuspend()
ocfs2: fix umask ignored issue
parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h
mmc: remove bondage between REQ_META and reliable write
tools/net: Use include/uapi with __EXPORTED_HEADERS__
packet: do skb_probe_transport_header when we actually have data
packet: only allow extra vlan len on ethernet devices
packet: fix tpacket_snd max frame len
sctp: translate host order to network order when setting a hmacid
net/mlx4_core: Avoid returning success in case of an error flow
usb: musb: core: fix order of arguments to ulpi write callback
FS-Cache: Add missing initialization of ret in cachefiles_write_page()
macvlan: fix leak in macvlan_handle_frame
ARC: Fix silly typo in MAINTAINERS file
unix: avoid use-after-free in ep_remove_wait_queue
packet: always probe for transport header
packet: infer protocol from ethernet header if unset
ip_tunnel: disable preemption when updating per-cpu tstats
snmp: Remove duplicate OUTMCAST stat increment
net: qmi_wwan: add XS Stick W100-2 from 4G Systems
tcp: md5: fix lockdep annotation
tcp: initialize tp->copied_seq in case of cross SYN connection
net, scm: fix PaX detected msg_controllen overflow in scm_detach_fds
net: ipmr: fix static mfc/dev leaks on table destruction
net: ip6mr: fix static mfc/dev leaks on table destruction
broadcom: fix PHY_ID_BCM5481 entry in the id table
ipv6: distinguish frag queues by device for multicast and link-local packets
ipv6: add complete rcu protection around np->opt
net/neighbour: fix crash at dumping device-agnostic proxy entries
ipv6: sctp: implement sctp_v6_destroy_sock()
xfs: allow inode allocations in post-growfs disk space
ALSA: usb-audio: add packet size quirk for the Medeli DD305
ALSA: usb-audio: prevent CH345 multiport output SysEx corruption
ALSA: usb-audio: work around CH345 input SysEx corruption
dm thin: restore requested 'error_if_no_space' setting on OODS to WRITE transition
dm: fix ioctl retry termination with signal
MIPS: KVM: Fix ASID restoration logic
MIPS: KVM: Fix CACHE immediate offset sign extension
MIPS: KVM: Uninit VCPU in vcpu_create error path
ALSA: hda - Add fixup for Acer Aspire One Cloudbook 14
mac: validate mac_partition is within sector
ALSA: hda - Apply HP headphone fixups more generically
powerpc/tm: Block signal return setting invalid MSR state
powerpc/tm: Check for already reclaimed tasks
ARC: dw2 unwind: Remove falllback linear search thru FDE entries
fix sysvfs symlinks
vfs: Make sendfile(2) killable even better
vfs: Avoid softlockups with sendfile(2)
nfs4: start callback_ident at idr 1
ALSA: hda - Fix headphone noise after Dell XPS 13 resume back from S3
arm64: KVM: Fix AArch32 to AArch64 register mapping
drm/radeon: make rv770_set_sw_state failures non-fatal
ALSA: hda - Fix noise on Gigabyte Z170X mobo
drm/radeon: make some dpm errors debug only
nfs: if we have no valid attrs, then don't declare the attribute cache valid
xen/gntdev: Grant maps should not be subject to NUMA balancing
iscsi-target: Fix rx_login_comp hang after login failure
target: Fix race for SCF_COMPARE_AND_WRITE_POST checking
target: fix COMPARE_AND_WRITE non zero SGL offset data corruption
ARM: dts: Kirkwood: Fix QNAP TS219 power-off
netfilter: ipt_rpfilter: remove the nh_scope test in rpfilter_lookup_reverse
netfilter: nf_tables: fix bogus warning in nft_data_uninit()
netfilter: ip6t_SYNPROXY: fix NULL pointer dereference
RDS: fix race condition when sending a message on unbound socket
gre6: allow to update all parameters via rtnl
atl1c: Improve driver not to do order 4 GFP_ATOMIC allocation
sctp: use the same clock as if sock source timestamps were on
sctp: update the netstamp_needed counter when copying sockets
ipv6: sctp: clone options to avoid use after free
net: add validation for the socket syscall protocol argument
sh_eth: fix kernel oops in skb_put()
vlan: Fix untag operations of stacked vlans with REORDER_HEADER off
skbuff: Fix offset error in skb_reorder_vlan_header
pptp: verify sockaddr_len in pptp_bind() and pptp_connect()
bluetooth: Validate socket address length in sco_sock_bind().
af_unix: Revert 'lock_interruptible' in stream receive code
ip6mr: call del_timer_sync() in ip6mr_free_table()
drm/i915: Disable PSMI sleep messages on all rings around context switches
crypto: nx - Fix timing leak in GCM and CCM decryption
crypto: talitos - Fix timing leak in ESP ICV verification
ASoC: wm8962: correct addresses for HPF_C_0/1
mac80211: mesh: fix call_rcu() usage
mac80211: ensure we don't update tx power on a non-running sdata
can: sja1000: clear interrupts on start
ring-buffer: Update read stamp with first real commit on page
block: Always check queue limits for cloned requests
Fix a memory leak in scsi_host_dev_release()
wan/x25: Fix use-after-free in x25_asy_open_tty()
mac80211: do not actively scan DFS channels
locking: Add WARN_ON_ONCE lock assertion
drm: Fix an unwanted master inheritance v2
sched/core: Clear the root_domain cpumasks in init_rootdomain()
x86/signal: Fix restart_syscall number for x32 tasks
isdn: Partially revert debug format string usage clean up
remoteproc: avoid stack overflow in debugfs file
net: mvneta: add configuration for MBUS windows access protection
net: mvneta: fix bit assignment in MVNETA_RXQ_CONFIG_REG
net: mvneta: fix bit assignment for RX packet irq enable
ipv4: igmp: Allow removing groups from a removed interface
sched/core: Remove false-positive warning from wake_up_process()
btrfs: fix signed overflows in btrfs_sync_file
KEYS: Fix race between read and revoke
KVM: x86: Reload pit counters for all channels when restoring state
Linux 3.16.7-ckt22