Vivid update to 3.19.8-ckt5 stable release

[Brad Figg]

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 3.19.8-ckt5 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 3.19.8-ckt5 stable release:
            Linux 3.19.8-ckt5
            rds: rds_ib_device.refcount overflow
            net: dsa: Test array index before use
            perf hists browser: Take the --comm, --dsos, etc filters into account
            perf symbols: Store if there is a filter in place
            net: dsa: Fix off-by-one in switch address parsing
            net: graceful exit from netif_alloc_netdev_queues()
            net: do not process device backlog during unregistration
            bridge: mdb: zero out the local br_ip variable before use
            bridge: mdb: start delete timer for temp static entries
            ip_tunnel: fix ipv4 pmtu check to honor inner ip header df
            net: call rcu_read_lock early in process_backlog
            ipv6: Make MLD packets to only be processed locally
            dma-debug: skip debug_dma_assert_idle() when disabled
            ARM: 8404/1: dma-mapping: fix off-by-one error in bitmap size check
            genirq: Prevent resend to interrupts marked IRQ_NESTED_THREAD
            drm/radeon/ci: silence a harmless PCC warning
            drm/radeon: fix user ptr race condition
            drm/radeon: Don't flush the GART TLB if rdev->gart.ptr == NULL
            drm/radeon: add a dpm quirk for Sapphire Radeon R9 270X 2GB GDDR5
            scsi: fix host max depth checking for the 'queue_depth' sysfs interface
            st: null pointer dereference panic caused by use after kref_put by st_open
            staging: vt6656: check ieee80211_bss_conf bssid not NULL
            staging: vt6655: check ieee80211_bss_conf bssid not NULL
            Btrfs: fix file corruption after cloning inline extents
            s390/process: fix sfpc inline assembly
            ARC: make sure instruction_pointer() returns unsigned value
            ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux
            can: c_can: Fix default pinmux glitch at init
            can: rcar_can: fix IRQ check
            Btrfs: fix list transaction->pending_ordered corruption
            Btrfs: fix memory leak in the extent_same ioctl
            KVM: VMX: fix vmwrite to invalid VMCS
            USB: serial: Destroy serial_minors IDR on module exit
            drivers: net: cpsw: fix crash while accessing second slave ethernet interface
            tracing: Have branch tracer use recursive field of task struct
            ARM: dts: mx23: fix iio-hwmon support
            bio integrity: do not assume bio_integrity_pool exists if bioset exists
            drm: add a check for x/y in drm_mode_setcrtc
            drm/rockchip: use drm_gem_mmap helpers
            s390/sclp: clear upper register halves in _sclp_print_early
            usb: f_mass_storage: limit number of reported LUNs
            usb: musb: host: rely on port_mode to call musb_start()
            dm btree: silence lockdep lock inversion in dm_btree_del()
            USB: cp210x: add ID for Aruba Networks controllers
            USB: option: add 2020:4000 ID
            crypto: omap-des - Fix unmapping of dma channels
            ARC: Override toplevel default -O2 with -O3
            kbuild: Allow arch Makefiles to override {cpp,ld,c}flags
            dm thin: allocate the cell_sort_array dynamically
            dm btree remove: fix bug in redistribute3
            iio: tmp006: Check channel info on write
            ALSA: usb-audio: Add MIDI support for Steinberg MI2/MI4
            iio: light: tcs3414: Fix bug preventing to set integration time
            iio: adc: at91_adc: allow to use full range of startup time
            iio: DAC: ad5624r_spi: fix bit shift of output data value
            iio: inv-mpu: Specify the expected format/precision for write channels
            iio: twl4030-madc: Pass the IRQF_ONESHOT flag
            iio: adc: rockchip_saradc: add missing MODULE_* data
            drivers: clk: st: Fix flexgen lock init
            ARM: 8393/1: smp: Fix suspicious RCU usage with ipi tracepoints
            drivers: clk: st: Fix mux bit-setting for Cortex A9 clocks
            drivers: clk: st: Incorrect register offset used for lock_status
            clk: qcom: Use parent rate when set rate to pixel RCG clock
            freeing unlinked file indefinitely delayed
            9p: don't leave a half-initialized inode sitting around
            parisc: Fix some PTE/TLB race conditions and optimize __flush_tlb_range based on timing results
            cxl: Check if afu is not null in cxl_slbia
            hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead
            hpfs: kstrdup() out of memory handling
            selinux: don't waste ebitmap space when importing NetLabel categories
            mm: avoid setting up anonymous pages into file mapping
            drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2)
            drm/radeon: Clean up reference counting and pinning of the cursor BOs
            drm/radeon: fix HDP flushing
            cxl: Fix off by one error allowing subsequent mmap page to be accessed
            powerpc/powernv: Fix race in updating core_idle_state
            ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage
            ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2
            ext4: replace open coded nofail allocation in ext4_free_blocks()
            ext4: correctly migrate a file with a hole at the beginning
            ext4: be more strict when migrating to non-extent based file
            ext4: fix reservation release on invalidatepage for delalloc fs
            ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp
            bufferhead: Add _gfp version for sb_getblk()
            Btrfs: fix fsync data loss after append write
            Btrfs: fix race between caching kthread and returning inode to inode cache
            Btrfs: use kmem_cache_free when freeing entry in inode cache
            sg_start_req(): make sure that there's not too many elements in iovec
            evm: labeling pseudo filesystems exception
            ieee802154: Fix sockaddr_ieee802154 implicit padding information leak.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.19.0-28.30

---------------
linux (3.19.0-28.30) vivid; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1490606

  [ Gary Wang ]

  * SAUCE: i915_bpo: drm/i915: set CDCLK if DPLL0 enabled during resuming
    from S3
    - LP: #1490035

  [ Timo Aaltonen ]

  * Revert "SAUCE: i915_bpo: drm/i915/skl: DDI-E and DDI-A shares 4 lanes."
    - LP: #1490038

linux (3.19.0-27.29) vivid; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #1485113

  [ Adam Lee ]

  * SAUCE: serial: 8250_pci: Add support for Pericom PI7C9X795[1248]
    - LP: #1480142

  [ Arun Siluvery ]

  * SAUCE: i915_bpo: drm/i915/gen8: Add infrastructure to initialize WA
    batch buffers
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915/gen8: Re-order init pipe_control in lrc mode
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915/gen8: Add WaDisableCtxRestoreArbitration
    workaround
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915/gen8: Add
    WaFlushCoherentL3CacheLinesAtContextSwitch workaround
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915: Bail out early if WA batch is not available
    for given Gen
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915/gen8: Add WaClearSlmSpaceAtContextSwitch
    workaround
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915: Update
    WaFlushCoherentL3CacheLinesAtContextSwitch
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915: Enable WA batch buffers for Gen9
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915/gen9: Add WaDisableCtxRestoreArbitration
    workaround
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915: Update wa_ctx_emit() macro as per kernel
    coding guidelines
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915/gen9: Add
    WaFlushCoherentL3CacheLinesAtContextSwitch workaround
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915/gen9: Add
    WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915:skl: Add WaEnableGapsTsvCreditFix
    - LP: #1484486

  [ Chris Wilson ]

  * SAUCE: i915_bpo: drm/i915: Use two 32bit reads for select 64bit
    REG_READ ioctls
    - LP: #1484482
  * SAUCE: i915_bpo: drm/i915: Replace WARN inside I915_READ64_2x32 with
    retry loop
    - LP: #1484482
  * SAUCE: i915_bpo: drm/i915: Mark PIN_USER binding as GLOBAL_BIND without
    the aliasing ppgtt
    - LP: #1484482
  * SAUCE: i915_bpo: drm/i915: Declare the swizzling unknown for L-shaped
    configurations
    - LP: #1484482

  [ Damien Lespiau ]

  * SAUCE: i915_bpo: drm/i915/skl: Don't expose the top most plane on gen9
    display
    - LP: #1484486

  [ Daniel Vetter ]

  * SAUCE: i915_bpo: drm/i915: Fixup dp mst encoder selection
    - LP: #1484482

  [ David Weinehall ]

  * SAUCE: i915_bpo: drm/i915: Allow parsing of variable size child device
    entries from VBT
  * SAUCE: i915_bpo: drm/i915: Allow parsing of variable size child device
    entries from VBT, addendum v2
    - LP: #1484482

  [ Jani Nikula ]

  * SAUCE: i915_bpo: drm/i915/skl: WaIgnoreDDIAStrap is forever, always
    init DDI A
    - LP: #1484486
  * SAUCE: i915_bpo: drm/i915: reduce indent in i9xx_hpd_irq_handler
    - LP: #1484531
  * SAUCE: i915_bpo: drm/i91...