Utopic update to 3.16.7-ckt12 stable release

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-ckt12 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-ckt12 stable release:

mlx4: Fix tx ring affinity_mask creation
net/mlx4_en: Schedule napi when RX buffers allocation fails
efi/reboot: Add generic wrapper around EfiResetSystem()
efi/reboot: Allow powering off machines using EFI
x86/reboot: Add EFI reboot quirk for ACPI Hardware Reduced flag
ARC: signal handling robustify
UBI: fix soft lockup in ubi_check_volume()
mnt: Fail collect_mounts when applied to unmounted mounts
ASoC: dapm: Enable autodisable on SOC_DAPM_SINGLE_TLV_AUTODISABLE
ASoC: rt5677: add register patch for PLL
btrfs: unlock i_mutex after attempting to delete subvolume during send
ALSA: hda - Fix mute-LED fixed mode
ALSA: hda - Add mute-LED mode control to Thinkpad
arm64: dma-mapping: always clear allocated buffers
ALSA: emu10k1: Fix card shortname string buffer overflow
ALSA: emux: Fix mutex deadlock at unloading
drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5
SCSI: add 1024 max sectors black list flag
3w-sas: fix command completion race
3w-xxxx: fix command completion race
3w-9xxx: fix command completion race
uas: Allow uas_use_uas_driver to return usb-storage flags
uas: Add US_FL_MAX_SECTORS_240 flag
uas: Set max_sectors_240 quirk for ASM1053 devices
usb: chipidea: otg: remove mutex unlock and lock while stop and start role
serial: xilinx: Use platform_get_irq to get irq description structure
serial: of-serial: Remove device_type = "serial" registration
tty/serial: at91: maxburst was missing for dma transfers
ALSA: emux: Fix mutex deadlock in OSS emulation
ALSA: emu10k1: Emu10k2 32 bit DMA mode
rbd: end I/O the entire obj_request on error
ext4: fix data corruption caused by unwritten and delayed extents
ext4: move check under lock scope to close a race.
bridge/mdb: remove wrong use of NLM_F_MULTI
mlx4_en: Use correct loop cursor in error path.
powerpc/pseries: Correct cpu affinity for dlpar added cpus
Revert "i2c: Mark adapter devices with pm_runtime_no_callbacks"
Revert "mm/hugetlb: use pmd_page() in follow_huge_pmd()"
arm/arm64: KVM: Fix and refactor unmap_range
ARM: KVM: Unmap IPA on memslot delete/move
ARM: KVM: user_mem_abort: support stage 2 MMIO page mapping
arm64: KVM: export demux regids as KVM_REG_ARM64
ARM: virt: fix wrong HSCTLR.EE bit setting
ARM64: KVM: store kvm_vcpu_fault_info est_el2 as word
KVM: ARM/arm64: fix non-const declaration of function returning const
KVM: ARM/arm64: fix broken __percpu annotation
KVM: ARM/arm64: avoid returning negative error code as bool
KVM: vgic: return int instead of bool when checking I/O ranges
ARM/arm64: KVM: fix use of WnR bit in kvm_is_write_fault()
KVM: ARM: vgic: plug irq injection race
arm/arm64: KVM: Fix set_clear_sgi_pend_reg offset
arm/arm64: KVM: Fix VTTBR_BADDR_MASK and pgd alloc
arm: kvm: fix CPU hotplug
arm/arm64: KVM: fix potential NULL dereference in user_mem_abort()
arm/arm64: KVM: Ensure memslots are within KVM_PHYS_SIZE
arm: kvm: STRICT_MM_TYPECHECKS fix for user_mem_abort
arm64: KVM: fix unmapping with 48-bit VAs
arm/arm64: KVM: vgic: Fix error code in kvm_vgic_create()
arm64/kvm: Fix assembler compatibility of macros
arm/arm64: kvm: drop inappropriate use of kvm_is_mmio_pfn()
arm/arm64: KVM: Don't clear the VCPU_POWER_OFF flag
arm/arm64: KVM: Correct KVM_ARM_VCPU_INIT power off option
arm/arm64: KVM: Reset the HCR on each vcpu when resetting the vcpu
arm/arm64: KVM: Introduce stage2_unmap_vm
arm/arm64: KVM: Don't allow creating VCPUs after vgic_initialized
arm/arm64: KVM: Require in-kernel vgic for the arch timers
arm64: KVM: Fix TLB invalidation by IPA/VMID
arm64: KVM: Fix HCR setting for 32bit guests
arm64: KVM: Do not use pgd_index to index stage-2 pgd
net: make skb_gso_segment error handling more robust
efivarfs: Ensure VariableName is NUL-terminated
x86/efi: Store upper bits of command line buffer address in ext_cmd_line_ptr
blk-mq: fix CPU hotplug handling
writeback: use |1 instead of +1 to protect against div by zero
ARM: mvebu: armada-xp-openblocks-ax3-4: Disable internal RTC
ARM: dts: imx23-olinuxino: Fix polarity of LED GPIO
ARM: dts: imx23-olinuxino: Fix dr_mode of usb0
ARM: dts: imx6: phyFLEX: USB VBUS control is active-high
ARM: dts: imx25: Add #pwm-cells to pwm4
ARM: dts: imx28: Fix AUART4 TX-DMA interrupt name
gpio: unregister gpiochip device before removing it
gpio: sysfs: fix memory leaks and device hotplug
ACPI / PNP: add two IDs to list for PNPACPI device enumeration
ARM: OMAP2+: Fix omap off idle power consumption creeping up
ARM: dts: OMAP3-N900: Add microphone bias voltages
drm/radeon: disable semaphores for UVD V1 (v2)
RDMA/CMA: Canonize IPv4 on IPV6 sockets properly
drm/i915: Add missing MacBook Pro models with dual channel LVDS
efi: Fix error handling in add_sysfs_runtime_map_entry()
xen/events: Clear cpu_evtchn_mask before resuming
xen/xenbus: Update xenbus event channel on resume
xen/console: Update console event channel on resume
xen/events: Set irq_info->evtchn before binding the channel to CPU in __startup_pirq()
mm/memory-failure: call shake_page() when error hits thp tail page
mm: soft-offline: fix num_poisoned_pages counting on concurrent events
nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()
ocfs2: dlm: fix race between purge and get lock resource
drm/i915/dp: there is no audio on port A
drm/radeon: make VCE handle check more strict
drm/radeon: make UVD handle checking more strict
drm/radeon: more strictly validate the UVD codec
path_openat(): fix double fput()
mnt: Fix fs_fully_visible to verify the root directory is visible
ARM: ux500: Move GPIO regulator for SD-card into board DTSs
ARM: ux500: Enable GPIO regulator for SD-card for HREF boards
ARM: ux500: Enable GPIO regulator for SD-card for snowball
xen-pciback: Add name prefix to global 'permissive' variable
mmc: core: add missing pm event in mmc_pm_notify to fix hib restore
mmc: sh_mmcif: Fix timeout value for command request
pinctrl: Don't just pretend to protect pinctrl_maps, do it for real
ACPICA: Utilities: split IO address types from data type models.
ACPICA: Tables: Change acpi_find_root_pointer() to use acpi_physical_address.
ACPICA: Utilities: Cleanup to enforce ACPI_PHYSADDR_TO_PTR()/ACPI_PTR_TO_PHYSADDR().
ACPICA: Utilities: Cleanup to convert physical address printing formats.
ACPICA: Utilities: Cleanup to remove useless ACPI_PRINTF/FORMAT_xxx helpers.
crush: ensuring at most num-rep osds are selected
netfilter: nf_tables: fix error handling of rule replacement
netfilter: Zero the tuple in nfnl_cthelper_parse_tuple()
netfilter: nf_tables: check for overflow of rule dlen field
netfilter: nft_compat: set IP6T_F_PROTO flag if protocol is set
netfilter: nf_tables: allow to change chain policy without hook if it exists
netfilter: nft_rbtree: fix locking
arm64/mm: Remove hack in mmap randomize layout
sched/autogroup: Fix failure to set cpu.rt_runtime_us
xprtrdma: Free the pd if ib_query_qp() fails
xfs: ensure truncate forces zeroed blocks to disk
Linux 3.16.7-ckt12

The following patches from 3.16.7-ckt12 were already applied in the Utopic kernel:

cdc-acm: prevent infinite loop when parsing CDC headers.
mmc: card: Don't access RPMB partitions for normal read/write
md/raid0: fix restore to sector variable in raid0_make_request

The following patch from 3.16.7-ckt12 was dropped as it failed to apply cleanly:

arm/arm64: KVM: Keep elrsr/aisr in sync with software model