kernel-packages team mailing list archive

[Luis Henriques <luis.henriques@xxxxxxxxxxxxx>]

** Description changed:

  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-ckt11 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-ckt11 stable release:
  
  n_tty: Fix read buffer overwrite when no newline
  spi: spidev: fix possible arithmetic overflow for multi-transfer message
  arm64: vdso: fix build error when switching from LE to BE
  uas: Do not blacklist ASM1153 disk enclosures
  KVM: x86: Fix lost interrupt on irr_pending race
  tcp: prevent fetching dst twice in early demux code
  ipv6: protect skb->sk accesses from recursive dereference inside the stack
  tcp: tcp_make_synack() should clear skb->tstamp
  usbnet: Fix tx_packets stat for FLAG_MULTI_FRAME drivers
  usbnet: Fix tx_bytes statistic running backward in cdc_ncm
  bonding: Bonding Overriding Configuration logic restored.
  HID: add ALWAYS_POLL quirk for a Logitech 0xc007
  PCI/AER: Avoid info leak in __print_tlp_header()
  PCI: cpcihp: Add missing curly braces in cpci_configure_slot()
  [media] sh_veu: v4l2_dev wasn't set
  [media] media: s5p-mfc: fix mmap support for 64bit arch
  cpufreq: Schedule work for the first-online CPU on resume
  cpuidle: remove state_count field from struct cpuidle_device
  cpuidle: ACPI: do not overwrite name and description of C0
  ioctx_alloc(): fix vma (and file) leak on failure
  drm/i915/vlv: save/restore the power context base reg
  drm/i915/chv: Remove Wait for a previous gfx force-off
  drm/i915/vlv: remove wait for previous GFX clk disable request
  ALSA: hda/realtek - Make more stable to get pin sense for ALC283
  ALSA: bebob: fix to processing in big-endian machine for sending cue
  be2iscsi: Fix kernel panic when device initialization fails
  Defer processing of REQ_PREEMPT requests for blocked devices
  ALSA: hda - Fix headphone pin config for Lifebook T731
  ocfs2: _really_ sync the right range
  ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support
  iscsi target: fix oops when adding reject pdu
  ext4: fix indirect punch hole corruption
  ip_forward: Drop frames with attached skb->sk
  net: add skb_checksum_complete_unset
  ppp: call skb_checksum_complete_unset in ppp_receive_frame
  tcp: fix possible deadlock in tcp_send_fin()
  tcp: avoid looping in tcp_send_fin()
  net: do not deplete pfmemalloc reserve
  net: fix crash in build_skb()
  usb: serial: silence all non-critical read errors
  usb: gadget: composite: enable BESL support
  rtlwifi: rtl8192cu: Add new device ID
  rtlwifi: rtl8192cu: Add new USB ID
  Bluetooth: ath3k: Add support Atheros AR5B195 combo Mini PCIe card
  power_supply: twl4030_madc: Check return value of power_supply_register
  power_supply: lp8788-charger: Fix leaked power supply on probe fail
  ARM: dts: dove: Fix uart[23] reg property
  xtensa: xtfpga: fix hardware lockup caused by LCD driver
  Drivers: hv: vmbus: Fix a bug in the error path in vmbus_open()
  xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range
  KVM: s390: Zero out current VMDB of STSI before including level3 data.
  KVM: s390: fix handling of write errors in the tpi handler
  KVM: s390: reinjection of irqs can fail in the tpi handler
  usb: musb: core: fix TX/RX endpoint order
  usb: gadget: printer: enqueue printer's response for setup request
  compal-laptop: correct invalid hwmon name
  compal-laptop: Fix leaking hwmon device
  compal-laptop: Check return value of power_supply_register
  sched/idle/x86: Restore mwait_idle() to fix boot hangs, to improve power savings and to improve performance
  drm/radeon: fix doublescan modes (v2)
  usb: phy: Find the right match in devm_usb_phy_match
  ASoC: pcm512x: Add 'Analogue' prefix to analogue volume controls
  mmc: sunxi: Use devm_reset_control_get_optional() for reset control
  tools lib traceevent kbuffer: Remove extra update to data pointer in PADDING
  MIPS: Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction
  ring-buffer: Replace this_cpu_*() with __this_cpu_*()
  HID: add HP OEM mouse to quirk ALWAYS_POLL
  HID: add quirk for PIXART OEM mouse used by HP
  ASoC: wm8741: Fix rates constraints values
  cdc-wdm: fix endianness bug in debug statements
  staging: panel: fix lcd type
  UBI: account for bitflips in both the VID header and data
  UBI: fix out of bounds write
  UBI: initialize LEB number variable
  UBI: fix check for "too many bytes"
  ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
  ASoC: davinci-evm: drop un-necessary remove function
  iscsi-target: Convert iscsi_thread_set usage to kthread.h
  Drivers: hv: vmbus: Don't wait after requesting offers
  Btrfs: fix log tree corruption when fs mounted with -o discard
  btrfs: don't accept bare namespace as a valid xattr
  MIPS: KVM: Handle MSA Disabled exceptions from guest
  ARM: 8320/1: fix integer overflow in ELF_ET_DYN_BASE
  MIPS: Hibernate: flush TLB entries earlier
  ASoC: cs4271: Increase delay time after reset
  [media] stk1160: Make sure current buffer is released
  mnt: Improve the umount_tree flags
  ext4: make fsync to sync parent dir in no-journal for real this time
  Input: elantech - fix absolute mode setting on some ASUS laptops
  usb: define a generic USB_RESUME_TIMEOUT macro
  usb: host: xhci: use new USB_RESUME_TIMEOUT
  usb: host: ehci: use new USB_RESUME_TIMEOUT
  usb: host: uhci: use new USB_RESUME_TIMEOUT
  usb: musb: use new USB_RESUME_TIMEOUT
  usb: host: isp116x: use new USB_RESUME_TIMEOUT
  usb: host: fotg210: use new USB_RESUME_TIMEOUT
  usb: host: fusbh200: use new USB_RESUME_TIMEOUT
  usb: host: oxu210hp: use new USB_RESUME_TIMEOUT
  usb: host: r8a66597: use new USB_RESUME_TIMEOUT
  usb: host: sl811: use new USB_RESUME_TIMEOUT
  usb: dwc2: hcd: use new USB_RESUME_TIMEOUT
  usb: isp1760: hcd: use new USB_RESUME_TIMEOUT
  usb: core: hub: use new USB_RESUME_TIMEOUT
  iser-target: Fix session hang in case of an rdma read DIF error
  iser-target: Fix possible deadlock in RDMA_CM connection error
  gpio: mvebu: Fix mask/unmask managment per irq chip type
  [media] rc: img-ir: fix error in parameters passed to irq_free()
  scsi: storvsc: Fix a bug in copy_from_bounce_buffer()
- md/raid0: fix bug with chunksize not a power of 2.
  ALSA: emu10k1: don't deadlock in proc-functions
  MIPS: asm: asm-eva: Introduce kernel load/store variants
  MIPS: Malta: Detect and fix bad memsize values
  clk: tegra: Register the proper number of resets
  ALSA: hda - Add dock support for ThinkPad X250 (17aa:2226)
  clk: at91: usb: fix at91sam9x5 recalc, round and set rate
  xtensa: ISS: fix locking in TAP network adapter
  nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
  s390/hibernate: fix save and restore of kernel text section
  ALSA: hda/realtek - Enable the ALC292 dock fixup on the Thinkpad T450
  Btrfs: fix inode eviction infinite loop after extent_same ioctl
  Btrfs: fix inode eviction infinite loop after cloning into it
  ACPICA: Tables: Don't release ACPI_MTX_TABLES in acpi_tb_install_standard_table().
  drm/i915: Dont enable CS_PARSER_ERROR interrupts at all
  KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save
  target: Fix COMPARE_AND_WRITE with SG_TO_MEM_NOALLOC handling
  mm/hugetlb: use pmd_page() in follow_huge_pmd()
  fs/binfmt_elf.c: fix bug in loading of PIE binaries
  IB/core: disallow registering 0-sized memory region
  IB/core: don't disallow registering region starting at 0x0
  target/file: Fix BUG() when CONFIG_DEBUG_SG=y and DIF protection enabled
  target/file: Fix SG table for prot_buf initialization
  target/file: Fix UNMAP with DIF protection support
  ptrace: fix race between ptrace_resume() and wait_task_stopped()
  mvsas: fix panic on expander attached SATA devices
  nfsd: fix nsfd startup race triggering BUG_ON
  i2c: rk3x: report number of messages transmitted
  i2c: Mark adapter devices with pm_runtime_no_callbacks
  nfs: fix high load average due to callback thread sleeping
  drm/i915: cope with large i2c transfers
  drm/i915: vlv: fix save/restore of GFX_MAX_REQ_COUNT reg
  ACPI / scan: Annotate physical_node_lock in acpi_scan_is_offline()
  RCU pathwalk breakage when running into a symlink overmounting something
  drivers/of: Add empty ranges quirk for PA-Semi
  e1000: add dummy allocator to fix race condition between mtu change and netpoll
  wl18xx: show rx_frames_per_rates as an array as it really is
  ARM: shmobile: r8a7790: Correct SYSCIER value
  apple-gmux: lock iGP IO to protect from vgaarb changes
  lib: memzero_explicit: use barrier instead of OPTIMIZER_HIDE_VAR
  clk: qcom: fix RCG M/N counter configuration
  arm64: head.S: ensure visibility of page tables
  driver core: bus: Goto appropriate labels on failure in bus_add_device
  C6x: time: Ensure consistency in __init
  xprtrdma: Prevent infinite loop in rpcrdma_ep_create()
  crypto: omap-aes - Fix support for unequal lengths
  ARM: fix broken hibernation
  jhash: Update jhash_[321]words functions to use correct initval
  vti6: fix uninit when using x-netns
  powerpc/cell: Fix cell iommu after it_page_shift changes
  KVM: use slowpath for cross page cached accesses
  powerpc: Fix missing L2 cache size in /sys/devices/system/cpu
  i2c: core: Export bus recovery functions
  IB/mlx4: Fix WQE LSO segment calculation
  IB/iser: Fix wrong calculation of protection buffer length
  mlx5: wrong page mask if CONFIG_ARCH_DMA_ADDR_T_64BIT enabled for 32Bit architectures
  skbuff: Do not scrub skb mark within the same name space
  firmware/ihex2fw.c: restore missing default in switch statement
  memstick: mspro_block: add missing curly braces
  tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
  cpufreq: fix a NULL pointer dereference in __cpufreq_governor()
  Input: twl4030-pwrbutton - ensure a wakeup event is recorded.
  Input: elantech - fix crc_enabled for Fujitsu H730
  Input: elantech - add more Fujtisu notebooks to force crc_enabled
  ext4: fix accidental flag aliasing in ext4_map_blocks flags
  ext4: fix ZERO_RANGE bug hidden by flag aliasing
  ext4: allocate entire range in zero range
  ipv4: Missing sk_nulls_node_init() in ping_unhash().
  Linux 3.16.7-ckt11
  
  The following patches from 3.16.7-ckt11 were already applied in the
  Utopic kernel:
  
  fs: take i_mutex during prepare_binprm for set[ug]id executables
  x86: kvm: Revert "remove sched notifier for cross-cpu migrations"
  x86: vdso: fix pvclock races with task migration
  powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH
+ 
+ The following patch from 3.16.7-ckt11 was dropped as it introduces a
+ regression (see comment #1):
+ 
+ md/raid0: fix bug with chunksize not a power of 2.

-- 
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https://bugs.launchpad.net/bugs/1454202

Title:
  Utopic update to 3.16.7-ckt11 stable release

Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  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-ckt11 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-ckt11 stable release:

  n_tty: Fix read buffer overwrite when no newline
  spi: spidev: fix possible arithmetic overflow for multi-transfer message
  arm64: vdso: fix build error when switching from LE to BE
  uas: Do not blacklist ASM1153 disk enclosures
  KVM: x86: Fix lost interrupt on irr_pending race
  tcp: prevent fetching dst twice in early demux code
  ipv6: protect skb->sk accesses from recursive dereference inside the stack
  tcp: tcp_make_synack() should clear skb->tstamp
  usbnet: Fix tx_packets stat for FLAG_MULTI_FRAME drivers
  usbnet: Fix tx_bytes statistic running backward in cdc_ncm
  bonding: Bonding Overriding Configuration logic restored.
  HID: add ALWAYS_POLL quirk for a Logitech 0xc007
  PCI/AER: Avoid info leak in __print_tlp_header()
  PCI: cpcihp: Add missing curly braces in cpci_configure_slot()
  [media] sh_veu: v4l2_dev wasn't set
  [media] media: s5p-mfc: fix mmap support for 64bit arch
  cpufreq: Schedule work for the first-online CPU on resume
  cpuidle: remove state_count field from struct cpuidle_device
  cpuidle: ACPI: do not overwrite name and description of C0
  ioctx_alloc(): fix vma (and file) leak on failure
  drm/i915/vlv: save/restore the power context base reg
  drm/i915/chv: Remove Wait for a previous gfx force-off
  drm/i915/vlv: remove wait for previous GFX clk disable request
  ALSA: hda/realtek - Make more stable to get pin sense for ALC283
  ALSA: bebob: fix to processing in big-endian machine for sending cue
  be2iscsi: Fix kernel panic when device initialization fails
  Defer processing of REQ_PREEMPT requests for blocked devices
  ALSA: hda - Fix headphone pin config for Lifebook T731
  ocfs2: _really_ sync the right range
  ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support
  iscsi target: fix oops when adding reject pdu
  ext4: fix indirect punch hole corruption
  ip_forward: Drop frames with attached skb->sk
  net: add skb_checksum_complete_unset
  ppp: call skb_checksum_complete_unset in ppp_receive_frame
  tcp: fix possible deadlock in tcp_send_fin()
  tcp: avoid looping in tcp_send_fin()
  net: do not deplete pfmemalloc reserve
  net: fix crash in build_skb()
  usb: serial: silence all non-critical read errors
  usb: gadget: composite: enable BESL support
  rtlwifi: rtl8192cu: Add new device ID
  rtlwifi: rtl8192cu: Add new USB ID
  Bluetooth: ath3k: Add support Atheros AR5B195 combo Mini PCIe card
  power_supply: twl4030_madc: Check return value of power_supply_register
  power_supply: lp8788-charger: Fix leaked power supply on probe fail
  ARM: dts: dove: Fix uart[23] reg property
  xtensa: xtfpga: fix hardware lockup caused by LCD driver
  Drivers: hv: vmbus: Fix a bug in the error path in vmbus_open()
  xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range
  KVM: s390: Zero out current VMDB of STSI before including level3 data.
  KVM: s390: fix handling of write errors in the tpi handler
  KVM: s390: reinjection of irqs can fail in the tpi handler
  usb: musb: core: fix TX/RX endpoint order
  usb: gadget: printer: enqueue printer's response for setup request
  compal-laptop: correct invalid hwmon name
  compal-laptop: Fix leaking hwmon device
  compal-laptop: Check return value of power_supply_register
  sched/idle/x86: Restore mwait_idle() to fix boot hangs, to improve power savings and to improve performance
  drm/radeon: fix doublescan modes (v2)
  usb: phy: Find the right match in devm_usb_phy_match
  ASoC: pcm512x: Add 'Analogue' prefix to analogue volume controls
  mmc: sunxi: Use devm_reset_control_get_optional() for reset control
  tools lib traceevent kbuffer: Remove extra update to data pointer in PADDING
  MIPS: Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction
  ring-buffer: Replace this_cpu_*() with __this_cpu_*()
  HID: add HP OEM mouse to quirk ALWAYS_POLL
  HID: add quirk for PIXART OEM mouse used by HP
  ASoC: wm8741: Fix rates constraints values
  cdc-wdm: fix endianness bug in debug statements
  staging: panel: fix lcd type
  UBI: account for bitflips in both the VID header and data
  UBI: fix out of bounds write
  UBI: initialize LEB number variable
  UBI: fix check for "too many bytes"
  ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
  ASoC: davinci-evm: drop un-necessary remove function
  iscsi-target: Convert iscsi_thread_set usage to kthread.h
  Drivers: hv: vmbus: Don't wait after requesting offers
  Btrfs: fix log tree corruption when fs mounted with -o discard
  btrfs: don't accept bare namespace as a valid xattr
  MIPS: KVM: Handle MSA Disabled exceptions from guest
  ARM: 8320/1: fix integer overflow in ELF_ET_DYN_BASE
  MIPS: Hibernate: flush TLB entries earlier
  ASoC: cs4271: Increase delay time after reset
  [media] stk1160: Make sure current buffer is released
  mnt: Improve the umount_tree flags
  ext4: make fsync to sync parent dir in no-journal for real this time
  Input: elantech - fix absolute mode setting on some ASUS laptops
  usb: define a generic USB_RESUME_TIMEOUT macro
  usb: host: xhci: use new USB_RESUME_TIMEOUT
  usb: host: ehci: use new USB_RESUME_TIMEOUT
  usb: host: uhci: use new USB_RESUME_TIMEOUT
  usb: musb: use new USB_RESUME_TIMEOUT
  usb: host: isp116x: use new USB_RESUME_TIMEOUT
  usb: host: fotg210: use new USB_RESUME_TIMEOUT
  usb: host: fusbh200: use new USB_RESUME_TIMEOUT
  usb: host: oxu210hp: use new USB_RESUME_TIMEOUT
  usb: host: r8a66597: use new USB_RESUME_TIMEOUT
  usb: host: sl811: use new USB_RESUME_TIMEOUT
  usb: dwc2: hcd: use new USB_RESUME_TIMEOUT
  usb: isp1760: hcd: use new USB_RESUME_TIMEOUT
  usb: core: hub: use new USB_RESUME_TIMEOUT
  iser-target: Fix session hang in case of an rdma read DIF error
  iser-target: Fix possible deadlock in RDMA_CM connection error
  gpio: mvebu: Fix mask/unmask managment per irq chip type
  [media] rc: img-ir: fix error in parameters passed to irq_free()
  scsi: storvsc: Fix a bug in copy_from_bounce_buffer()
  ALSA: emu10k1: don't deadlock in proc-functions
  MIPS: asm: asm-eva: Introduce kernel load/store variants
  MIPS: Malta: Detect and fix bad memsize values
  clk: tegra: Register the proper number of resets
  ALSA: hda - Add dock support for ThinkPad X250 (17aa:2226)
  clk: at91: usb: fix at91sam9x5 recalc, round and set rate
  xtensa: ISS: fix locking in TAP network adapter
  nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
  s390/hibernate: fix save and restore of kernel text section
  ALSA: hda/realtek - Enable the ALC292 dock fixup on the Thinkpad T450
  Btrfs: fix inode eviction infinite loop after extent_same ioctl
  Btrfs: fix inode eviction infinite loop after cloning into it
  ACPICA: Tables: Don't release ACPI_MTX_TABLES in acpi_tb_install_standard_table().
  drm/i915: Dont enable CS_PARSER_ERROR interrupts at all
  KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save
  target: Fix COMPARE_AND_WRITE with SG_TO_MEM_NOALLOC handling
  mm/hugetlb: use pmd_page() in follow_huge_pmd()
  fs/binfmt_elf.c: fix bug in loading of PIE binaries
  IB/core: disallow registering 0-sized memory region
  IB/core: don't disallow registering region starting at 0x0
  target/file: Fix BUG() when CONFIG_DEBUG_SG=y and DIF protection enabled
  target/file: Fix SG table for prot_buf initialization
  target/file: Fix UNMAP with DIF protection support
  ptrace: fix race between ptrace_resume() and wait_task_stopped()
  mvsas: fix panic on expander attached SATA devices
  nfsd: fix nsfd startup race triggering BUG_ON
  i2c: rk3x: report number of messages transmitted
  i2c: Mark adapter devices with pm_runtime_no_callbacks
  nfs: fix high load average due to callback thread sleeping
  drm/i915: cope with large i2c transfers
  drm/i915: vlv: fix save/restore of GFX_MAX_REQ_COUNT reg
  ACPI / scan: Annotate physical_node_lock in acpi_scan_is_offline()
  RCU pathwalk breakage when running into a symlink overmounting something
  drivers/of: Add empty ranges quirk for PA-Semi
  e1000: add dummy allocator to fix race condition between mtu change and netpoll
  wl18xx: show rx_frames_per_rates as an array as it really is
  ARM: shmobile: r8a7790: Correct SYSCIER value
  apple-gmux: lock iGP IO to protect from vgaarb changes
  lib: memzero_explicit: use barrier instead of OPTIMIZER_HIDE_VAR
  clk: qcom: fix RCG M/N counter configuration
  arm64: head.S: ensure visibility of page tables
  driver core: bus: Goto appropriate labels on failure in bus_add_device
  C6x: time: Ensure consistency in __init
  xprtrdma: Prevent infinite loop in rpcrdma_ep_create()
  crypto: omap-aes - Fix support for unequal lengths
  ARM: fix broken hibernation
  jhash: Update jhash_[321]words functions to use correct initval
  vti6: fix uninit when using x-netns
  powerpc/cell: Fix cell iommu after it_page_shift changes
  KVM: use slowpath for cross page cached accesses
  powerpc: Fix missing L2 cache size in /sys/devices/system/cpu
  i2c: core: Export bus recovery functions
  IB/mlx4: Fix WQE LSO segment calculation
  IB/iser: Fix wrong calculation of protection buffer length
  mlx5: wrong page mask if CONFIG_ARCH_DMA_ADDR_T_64BIT enabled for 32Bit architectures
  skbuff: Do not scrub skb mark within the same name space
  firmware/ihex2fw.c: restore missing default in switch statement
  memstick: mspro_block: add missing curly braces
  tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
  cpufreq: fix a NULL pointer dereference in __cpufreq_governor()
  Input: twl4030-pwrbutton - ensure a wakeup event is recorded.
  Input: elantech - fix crc_enabled for Fujitsu H730
  Input: elantech - add more Fujtisu notebooks to force crc_enabled
  ext4: fix accidental flag aliasing in ext4_map_blocks flags
  ext4: fix ZERO_RANGE bug hidden by flag aliasing
  ext4: allocate entire range in zero range
  ipv4: Missing sk_nulls_node_init() in ping_unhash().
  Linux 3.16.7-ckt11

  The following patches from 3.16.7-ckt11 were already applied in the
  Utopic kernel:

  fs: take i_mutex during prepare_binprm for set[ug]id executables
  x86: kvm: Revert "remove sched notifier for cross-cpu migrations"
  x86: vdso: fix pvclock races with task migration
  powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH

  The following patch from 3.16.7-ckt11 was dropped as it introduces a
  regression (see comment #1):

  md/raid0: fix bug with chunksize not a power of 2.

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