git.openwrt.org Git - openwrt/staging/blogic.git/log

fsl-usb: do not test for PHY_CLK_VALID bit on controller version 1.6

Per reference manuals of Freescale P1020 and P2020 SoCs, USB controller
present in these SoCs has bit 17 of USBx_CONTROL register marked as
Reserved - there is no PHY_CLK_VALID bit there.

Testing for this bit in ehci_fsl_setup_phy() behaves differently on two
P1020RDB boards available here - on one board test passes and fsl-usb
init succeeds, but on other board test fails, causing fsl-usb init to
fail.

This patch changes ehci_fsl_setup_phy() not to test PHY_CLK_VALID on
controller version 1.6 that (per manual) does not have this bit.

Signed-off-by: Nikita Yushchenko <nyushchenko@dev.rtsoft.ru>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: storage: shuttle_usbat: fix discs being detected twice

Even if the USB-to-ATAPI converter supported multiple LUNs, this
driver would always detect the same physical device or media because
it doesn't use srb->device->lun in any way.
Tested with an Hewlett-Packard CD-Writer Plus 8200e.

Signed-off-by: Daniele Forsi <dforsi@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: qcserial: add a number of Dell devices

Dan writes:

"The Dell drivers use the same configuration for PIDs:

81A2: Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card
81A3: Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card
81A4: Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card
81A8: Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card
81A9: Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card

These devices are all clearly Sierra devices, but are also definitely
Gobi-based. The A8 might be the MC7700/7710 and A9 is likely a MC7750.

>From DellGobi5kSetup.exe from the Dell drivers:

usbif0: serial/firmware loader?
usbif2: nmea
usbif3: modem/ppp
usbif8: net/QMI"

Cc: <stable@vger.kernel.org>
Reported-by: AceLan Kao <acelan.kao@canonical.com>
Reported-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

USB: OHCI: fix problem with global suspend on ATI controllers

Some OHCI controllers from ATI/AMD seem to have difficulty with
"global" USB suspend, that is, suspending an entire USB bus without
setting the suspend feature for each port connected to a device.  When
we try to resume the child devices, the controller gives timeout
errors on the unsuspended ports, requiring resets, and can even cause
ohci-hcd to hang; see

http://marc.info/?l=linux-usb&m=139514332820398&w=2

and the following messages.

This patch fixes the problem by adding a new quirk flag to ohci-hcd.
The flag causes the ohci_rh_suspend() routine to suspend each
unsuspended, enabled port before suspending the root hub.  This
effectively converts the "global" suspend to an ordinary root-hub
suspend.  There is no need to unsuspend these ports when the root hub
is resumed, because the child devices will be resumed anyway in the
course of a normal system resume ("global" suspend is never used for
runtime PM).

This patch should be applied to all stable kernels which include
commit 0aa2832dd0d9 (USB: use "global suspend" for system sleep on
USB-2 buses) or a backported version thereof.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Peter Münster <pmlists@free.fr>
Tested-by: Peter Münster <pmlists@free.fr>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'fixes-for-v3.15-rc4' of git://git./linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v3.15-rc4

Small pull request this time containing only 3 patches.

One patch is fixing at91 resource retrieval, one fixes a
conditional in the generic OTG FSM and another fixes a
state transition also on our generic OTG FSM.

Signed-of-by: Felipe Balbi <balbi@ti.com>

usb: gadget: at91-udc: fix irq and iomem resource retrieval

When using dt resources retrieval (interrupts and reg properties) there is
no predefined order for these resources in the platform dev resource
table. Also don't expect the number of resource to be always 2.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Acked-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable <stable@vger.kernel.org> # 3.4
Signed-off-by: Felipe Balbi <balbi@ti.com>

Linux 3.15-rc3

word-at-a-time: avoid undefined behaviour in zero_bytemask macro

The asm-generic, big-endian version of zero_bytemask creates a mask of
bytes preceding the first zero-byte by left shifting ~0ul based on the
position of the first zero byte.

Unfortunately, if the first (top) byte is zero, the output of
prep_zero_mask has only the top bit set, resulting in undefined C
behaviour as we shift left by an amount equal to the width of the type.
As it happens, GCC doesn't manage to spot this through the call to fls(),
but the issue remains if architectures choose to implement their shift
instructions differently.

An example would be arch/arm/ (AArch32), where LSL Rd, Rn, #32 results
in Rd == 0x0, whilst on arch/arm64 (AArch64) LSL Xd, Xn, #64 results in
Xd == Xn.

Rather than check explicitly for the problematic shift, this patch adds
an extra shift by 1, replacing fls with __fls. Since zero_bytemask is
never called with a zero argument (has_zero() is used to check the data
first), we don't need to worry about calling __fls(0), which is
undefined.

Cc: <stable@vger.kernel.org>
Cc: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge branch 'safe-dirty-tlb-flush'

This merges the patch to fix possible loss of dirty bit on munmap() or
madvice(DONTNEED).  If there are concurrent writers on other CPU's that
have the unmapped/unneeded page in their TLBs, their writes to the page
could possibly get lost if a third CPU raced with the TLB flush and did
a page_mkclean() before the page was fully written.

Admittedly, if you unmap() or madvice(DONTNEED) an area _while_ another
thread is still busy writing to it, you deserve all the lost writes you
could get.  But we kernel people hold ourselves to higher quality
standards than "crazy people deserve to lose", because, well, we've seen
people do all kinds of crazy things.

So let's get it right, just because we can, and we don't have to worry
about it.

* safe-dirty-tlb-flush:
  mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts

Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: limit the path size in send to PATH_MAX
  Btrfs: correctly set profile flags on seqlock retry
  Btrfs: use correct key when repeating search for extent item
  Btrfs: fix inode caching vs tree log
  Btrfs: fix possible memory leaks in open_ctree()
  Btrfs: avoid triggering bug_on() when we fail to start inode caching task
  Btrfs: move btrfs_{set,clear}_and_info() to ctree.h
  btrfs: replace error code from btrfs_drop_extents
  btrfs: Change the hole range to a more accurate value.
  btrfs: fix use-after-free in mount_subvol()

Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull arm fixes from Russell King:
"A number of fixes for the PJ4/iwmmxt changes which arm-soc forced me
  to take during the merge window.  This stuff should have been better
  tested and sorted out *before* the merge window"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8042/1: iwmmxt: allow to build iWMMXt on Marvell PJ4B
  ARM: 8041/1: pj4: fix cpu_is_pj4 check
  ARM: 8040/1: pj4: properly detect existence of iWMMXt coprocessor
  ARM: 8039/1: pj4: enable iWMMXt only if CONFIG_IWMMXT is set
  ARM: 8038/1: iwmmxt: explicitly check for supported architectures

Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:
- compat renameat2 syscall wiring and __NR_compat_syscalls fix
- TLB fix for transparent huge pages following switch to generic
   mmu_gather
- spinlock initialisation for init_mm's context
- move of_clk_init() earlier
- Kconfig duplicate entry fix

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: init: Move of_clk_init to time_init
  arm64: initialize spinlock for init_mm's context
  arm64: debug: remove noisy, pointless warning
  arm64: mm: Add THP TLB entries to general mmu_gather
  arm64: add renameat2 compat syscall
  ARM64: Remove duplicated Kconfig entry for "kernel/power/Kconfig"
  arm64: __NR_compat_syscalls fix

Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
"A slighlty large fix for a subtle issue in the CPU hotplug code of
  certain ARM SoCs, where the not yet online cpu needs to setup the cpu
  local timer and needs to set the interrupt affinity to itself.
  Setting interrupt affinity to a not online cpu is prohibited and
  therefor the timer interrupt ends up on the wrong cpu, which leads to
  nasty complications.

  The SoC folks tried to hack around that in the SoC code in some more
  than nasty ways.  The proper solution is to have a way to enforce the
  affinity setting to a not online cpu.  The core patch to the genirq
  code provides that facility and the follow up patches make use of it
  in the GIC interrupt controller and the exynos timer driver.

  The change to the core code has no implications to existing users,
  except for the rename of the locked function and therefor the
  necessary fixup in mips/cavium.  Aside of that, no runtime impact is
  possible, as none of the existing interrupt chips implements anything
  which depends on the force argument of the irq_set_affinity()
  callback"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: Exynos_mct: Register clock event after request_irq()
  clocksource: Exynos_mct: Use irq_force_affinity() in cpu bringup
  irqchip: Gic: Support forced affinity setting
  genirq: Allow forcing cpu affinity of interrupts

Merge tag 'tty-3.15-rc3' of git://git./linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
"Here are a few tty/serial fixes for 3.15-rc3 that resolve a number of
  reported issues in the 8250 and samsung serial drivers, as well as a
  character loss fix for the tty core that was caused by the lock
  removal patches a release ago"

* tag 'tty-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial_core: fix uart PORT_UNKNOWN handling
  serial: samsung: Change barrier() to cpu_relax() in console output
  serial: samsung: don't check config for every character
  serial: samsung: Use the passed in "port", fixing kgdb w/ no console
  serial: 8250: Fix thread unsafe __dma_tx_complete function
  8250_core: Fix unwanted TX chars write
  tty: Fix race condition between __tty_buffer_request_room and flush_to_ldisc

Merge tag 'staging-3.15-rc3' of git://git./linux/kernel/git/gregkh/staging

Pull staging / IIO driver fixes from Greg KH:
"Here are some small staging and IIO driver fixes for 3.15-rc3.

  Nothing major at all, just some assorted issues that people have
  reported"

* tag 'staging-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: comedi: usbdux: bug fix for accessing 'ao_chanlist' in private data
  iio: adc: mxs-lradc: fix warning when buidling on avr32
  iio: cm36651: Fix i2c client leak and possible NULL pointer dereference
  iio: querying buffer scan_mask should return 0/1
  staging:iio:ad2s1200 fix a missing break
  iio: adc: at91_adc: correct default shtim value
  ARM: at91: at91sam9260: change at91_adc name
  ARM: at91: at91sam9g45: change at91_adc name
  iio: cm32181: Fix read integration time function
  iio: adc: at91_adc: Repair broken platform_data support

Merge tag 'driver-core-3.15-rc3' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
"Here are some kernfs fixes for 3.15-rc3 that resolve some reported
  problems.  Nothing huge, but all needed"

* tag 'driver-core-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  s390/ccwgroup: Fix memory corruption
  kernfs: add back missing error check in kernfs_fop_mmap()
  kernfs: fix a subdir count leak

Merge tag 'usb-3.15-rc3' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
"Here are a number of USB fixes for 3.15-rc3.  The majority are gadget
  fixes, as we didn't get any of those in for 3.15-rc2.  The others are
  all over the place, and there's a number of new device id addtions as
  well."

* tag 'usb-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (35 commits)
  usb: option: add and update a number of CMOTech devices
  usb: option: add Alcatel L800MA
  usb: option: add Olivetti Olicard 500
  usb: qcserial: add Sierra Wireless MC7305/MC7355
  usb: qcserial: add Sierra Wireless MC73xx
  usb: qcserial: add Sierra Wireless EM7355
  USB: io_ti: fix firmware download on big-endian machines
  usb/xhci: fix compilation warning when !CONFIG_PCI && !CONFIG_PM
  xhci: extend quirk for Renesas cards
  xhci: Switch Intel Lynx Point ports to EHCI on shutdown.
  usb: xhci: Prefer endpoint context dequeue pointer over stopped_trb
  phy: core: make NULL a valid phy reference if !CONFIG_GENERIC_PHY
  phy: fix kernel oops in phy_lookup()
  phy: restore OMAP_CONTROL_PHY dependencies
  phy: exynos: fix building as a module
  USB: serial: fix sysfs-attribute removal deadlock
  usb: wusbcore: fix panic in wusbhc_chid_set
  usb: wusbcore: convert nested lock to use spin_lock instead of spin_lock_irq
  uwb: don't call spin_unlock_irq in a USB completion handler
  usb: chipidea: coordinate usb phy initialization for different phy type
  ...

Merge tag 'pm+acpi-3.15-rc3' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:
"These include a fix for a recent ACPI regression related to device
  notifications, intel_idle fix related to IvyTown support, fix for a
  buffer size issue in ACPICA, PM core fix related to the "freeze" sleep
  state, four fixes for various types of breakage in cpufreq drivers, a
  PNP workaround for a wrong memory region size in ACPI tables, and a
  fix and cleanup for the ACPI tools Makefile.

  Specifics:

   - Fix for broken ACPI notifications on some systems caused by a
     recent ACPI hotplug commit that blocked the propagation of unknown
     type notifications to device drivers inadvertently.

   - intel_idle fix to make the IvyTown C-states handling (added
     recently) work as intended which now is broken due to missing
     braces.  From Christoph Jaeger.

   - ACPICA fix to make it allocate buffers of the right sizes for the
     Generic Serial Bus operation region access.  From Lv Zheng.

   - PM core fix unblocking cpuidle before entering the "freeze" sleep
     state which causes that state to be able to actually save more
     energy than runtime idle.

   - Configuration and build fixes for the highbank and powernv cpufreq
     drivers from Kefeng Wang and Srivatsa S Bhat.

   - Coccinelle warning fix related to error pointers for the unicore32
     cpufreq driver from Duan Jiong.

   - Integer overflow fix for the ppc-corenet cpufreq driver from Geert
     Uytterhoeven.

   - Workaround for BIOSes that don't report the entire Intel MCH area
     in their ACPI tables from Bjorn Helgaas.

   - ACPI tools Makefile fix and cleanup from Thomas Renninger"

* tag 'pm+acpi-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / notify: Do not block unknown type notifications in root handler
  PNP: Work around BIOS defects in Intel MCH area reporting
  cpufreq: highbank: fix ARM_HIGHBANK_CPUFREQ dependency warning
  cpufreq: ppc: Fix integer overflow in expression
  cpufreq, powernv: Fix build failure on UP
  cpufreq: unicore32: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  PM / suspend: Make cpuidle work in the "freeze" state
  intel_idle: fix IVT idle state table setting
  ACPICA: Fix buffer allocation issue for generic_serial_bus region accesses.
  tools/power/acpi: Minor bugfixes

Btrfs: limit the path size in send to PATH_MAX

fs_path_ensure_buf is used to make sure our path buffers for
send are big enough for the path names as we construct them.
The buffer size is limited to 32K by the length field in
the struct.

But bugs in the path construction can end up trying to build
a huge buffer, and we'll do invalid memmmoves when the
buffer length field wraps.

This patch is step one, preventing the overflows.

Signed-off-by: Chris Mason <clm@fb.com>

mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts

The mmu-gather operation 'tlb_flush_mmu()' has done two things: the
actual tlb flush operation, and the batched freeing of the pages that
the TLB entries pointed at.

This splits the operation into separate phases, so that the forced
batched flushing done by zap_pte_range() can now do the actual TLB flush
while still holding the page table lock, but delay the batched freeing
of all the pages to after the lock has been dropped.

This in turn allows us to avoid a race condition between
set_page_dirty() (as called by zap_pte_range() when it finds a dirty
shared memory pte) and page_mkclean(): because we now flush all the
dirty page data from the TLB's while holding the pte lock,
page_mkclean() will be held up walking the (recently cleaned) page
tables until after the TLB entries have been flushed from all CPU's.

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Dave Hansen <dave.hansen@intel.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge branches 'pnp' and 'acpi-hotplug'

* pnp:
PNP: Work around BIOS defects in Intel MCH area reporting

* acpi-hotplug:
ACPI / notify: Do not block unknown type notifications in root handler

Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
- ltc2945: Don't unecessarily crash kernel on implementation error
- vexpress: Fix 'name' and 'label' attributes

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (ltc2945) Don't crash the kernel unnecessarily
  hwmon: (vexpress) Avoid creating non-existing attributes
  hwmon: (vexpress) Use legal hwmon device names

Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
"This is a set of seven fixes, three (hpsa) and free'd command
  references correcting bugs in the last round of updates and the
  remaining four correcting problems within the SCSI error handler that
  was causing a deadlock within USB"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] More USB deadlock fixes
  [SCSI] Fix USB deadlock caused by SCSI error handling
  [SCSI] Fix command result state propagation
  [SCSI] Fix spurious request sense in error handling
  [SCSI] don't reference freed command in scsi_prep_return
  [SCSI] don't reference freed command in scsi_init_sgtable
  [SCSI] hpsa: fix NULL dereference in hpsa_put_ctlr_into_performant_mode()

Merge tag 'fixes-3.15-rc3' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
"Since we didn't get around to collect fixes in time for -rc2 over the
  easter vacation, this one is unfortunately a bit larger than we'd like
  for an -rc3 merge.

  A large set of the changes is in the device tree sources, so I'm
  splitting out the description between code changes and DT changes.
  Aside from omap and versatile express, the actual code bugs are and
  trivial.  Here is an overview:

  imx:
   - fix video clock settings
   - fix one clock refcounting bug

  omap:
   - update defconfig for renamed USB PHY driver
   - fix error handling in gpmc
   - fix N900 video initialization regression
   - fix reression in hwmod code from missing braces
   - fix am43xx and omap3 clocks
   - remove bogus write to voltage control register

  pxa:
   - fix build regression from 3.13 header cleanup

  rockchip:
   - fix a misleading printk string

  shmobile:
   - fix incorrect sound setting on multiple machines

  spear:
   - remove incorrect __init section annotation

  tegra:
   - remove a stale Kconfig entry

  u300:
   - update defconfig

  ux500:
   - enable common wireless and sensor drivers in defconfig
   - more defconfig updates

  vexpress:
   - fix voltage calculation for opp
   - fix reboot hang and warning
   - fix out-of-bounds array access
   - improve error handling in clock driver

  overall:
   - always select CLKSRC_OF in multiplatform builds

  And these are the devicetree related changes:

  imx:
   - add missing #clock-cell properties
   - fix pinctrl setting in imx6sl-evk
   - fix video endpoint on imx53
   - remove obsolete lvds-channel nodes (multiple patches)
   - add missing second stmpe node
   - fix usb host mode on dmo-edmqmx6 (multiple patches)
   - fix gic node #address-cells to match usage
   - add missing legacy IRQ map for PCIe
   - fix microsom pincontrol setting for rgmii
   - fix fatal typo in touchscreen DT usage for mx5
   - list all RAM present on m53evk and mx53qsb

  omap:
   - fix bug in DT handling of gpmc external bus
   - add DT for older revision of beagleboard
   - fix regression after DT node name fixes
   - remove obsolete properties for gpmc
   - fix pinmux comment to match DT it refers to
   - fix newly added dra7xx clock node data
   - add missing clock for USB PHY

  mvebu:
   - add missing clock for mdio node
   - fix nonstandard vendor prefixes on i2c nodes

  rockchip:
   - fix pin control setting for uart

  shmobile:
   - fix typo in DT data for pin control (multiple patches)
   - fix gic node #address-cells to match usage

  tegra:
   - fix clock and uart DT representation to match hardware

  zynq:
   - add DT nodes for newly added driver
   - add DT properties required for cpufreq-ondemand

  overall:
   - restore alphabetic order in Makefile
   - grammar fixes in bindings"

* tag 'fixes-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (66 commits)
  ARM: vexpress/TC2: Convert OPP voltage to uV before storing
  power/reset: vexpress: Fix restart/power off operation
  dt: tegra: remove non-existent clock IDs
  clk: tegra: remove non-existent clocks
  ARM: tegra: remove UART5/UARTE from tegra124.dtsi
  ARM: tegra: remove TEGRA_EMC_SCALING_ENABLE
  ARM: Tidy up DTB Makefile entries
  ARM: fix missing CLKSRC_OF on multi-platform
  ARM: spear: add __init to spear_clocksource_init()
  ARM: pxa: hx4700.h: include "irqs.h" for PXA_NR_BUILTIN_GPIO
  arm/mach-vexpress: array accessed out of bounds
  clk: vexpress: NULL dereference on error path
  ARM: OMAP2+: Fix GPMC remap for devices using an offset
  ARM: zynq: dt: Add I2C nodes to Zynq device tree
  ARM: zynq: DT: Add 'clock-latency' property
  ARM: OMAP2+: Fix oops for GPMC free
  ARM: dts: Add support for the BeagleBoard xM A/B
  ARM: dts: Grammar /that will/it will/
  ARM: dts: Grammar /is uses/ is used/
  ARM: OMAP2+: Fix config name for USB3 PHY
  ...

Merge tag 'locks-v3.15-2' of git://git.samba.org/jlayton/linux

Pull file locking fixes from Jeff Layton:
"File locking related bugfixes for v3.15 (pile #2)

   - fix for a long-standing bug in __break_lease that can cause soft
     lockups
   - renaming of file-private locks to "open file description" locks,
     and the command macros to more visually distinct names

  The fix for __break_lease is also in the pile of patches for which
  Bruce sent a pull request, but I assume that your merge procedure will
  handle that correctly.

  For the other patches, I don't like the fact that we need to rename
  this stuff at this late stage, but it should be settled now
  (hopefully)"

* tag 'locks-v3.15-2' of git://git.samba.org/jlayton/linux:
  locks: rename FL_FILE_PVT and IS_FILE_PVT to use "*_OFDLCK" instead
  locks: rename file-private locks to "open file description locks"
  locks: allow __break_lease to sleep even when break_time is 0

Merge branch 'for-3.15' of git://linux-nfs.org/~bfields/linux

Pull nfsd bugfixes from Bruce Fields:
"Three small nfsd bugfixes (including one locks.c fix for a bug
  triggered only from nfsd).

  Jeff's patches are for long-existing problems that became easier to
  trigger since the addition of vfs delegation support"

* 'for-3.15' of git://linux-nfs.org/~bfields/linux:
  Revert "nfsd4: fix nfs4err_resource in 4.1 case"
  nfsd: set timeparms.to_maxval in setup_callback_client
  locks: allow __break_lease to sleep even when break_time is 0

s390/ccwgroup: Fix memory corruption

commit 0b60f9ead5d4816e7e3d6e28f4a0d22d4a1b2513 (s390: use
device_remove_file_self() instead of device_schedule_callback())

caused random memory corruption on my s390 box. Turns out that the
last element of the ccwgroup structure is of dynamic size, so we
must move the newly introduced work structure _before_ the zero
length array.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Tejun Heo <tj@kernel.org>
CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
CC: Heiko Carstens <heiko.carstens@de.ibm.com>
CC: Sebastian Ott <sebott@linux.vnet.ibm.com>
CC: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

kernfs: add back missing error check in kernfs_fop_mmap()

While updating how mmap enabled kernfs files are handled by lockdep,
9b2db6e18945 ("sysfs: bail early from kernfs_file_mmap() to avoid
spurious lockdep warning") inadvertently dropped error return check
from kernfs_file_mmap(). The intention was just dropping "if
(ops->mmap)" check as the control won't reach the point if the mmap
callback isn't implemented, but I mistakenly removed the error return
check together with it.

This led to Xorg crash on i810 which was reported and bisected to the
commit and then to the specific change by Tobias.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-bisected-by: Tobias Powalowski <tobias.powalowski@googlemail.com>
Tested-by: Tobias Powalowski <tobias.powalowski@googlemail.com>
References: http://lkml.kernel.org/g/533D01BD.1010200@googlemail.com
Cc: stable <stable@vger.kernel.org> # 3.14
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

kernfs: fix a subdir count leak

Currently kernfs_link_sibling() increates parent->dir.subdirs before
adding the node into parent's chidren rb tree.

Because it is possible that kernfs_link_sibling() couldn't find
a suitable slot and bail out, this leads to a mismatch between
elevated subdir count with actual children node numbers.

This patches fix this problem, by moving the subdir accouting
after the actual addtion happening.

Signed-off-by: Jianyu Zhan <nasa4836@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: option: add and update a number of CMOTech devices

A number of older CMOTech modems are based on Qualcomm
chips. The blacklisted interfaces are QMI/wwan.

Reported-by: Lars Melin <larsm17@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: option: add Alcatel L800MA

Device interface layout:
0: ff/ff/ff - serial
1: ff/00/00 - serial AT+PPP
2: ff/ff/ff - QMI/wwan
3: 08/06/50 - storage

Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: option: add Olivetti Olicard 500

Device interface layout:
0: ff/ff/ff - serial
1: ff/ff/ff - serial AT+PPP
2: 08/06/50 - storage
3: ff/ff/ff - serial
4: ff/ff/ff - QMI/wwan

Cc: <stable@vger.kernel.org>
Reported-by: Julio Araujo <julio.araujo@wllctel.com.br>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: qcserial: add Sierra Wireless MC7305/MC7355

Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: qcserial: add Sierra Wireless MC73xx

Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: qcserial: add Sierra Wireless EM7355

Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arm64: init: Move of_clk_init to time_init

Clock providers should be initialized before clocksource_of_init.
If not, Clock source initialization can be fail to get the clock.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Chanho Min <chanho.min@lge.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

USB: io_ti: fix firmware download on big-endian machines

During firmware download the device expects memory addresses in
big-endian byte order. As the wIndex parameter which hold the address is
sent in little-endian byte order regardless of host byte order, we need
to use swab16 rather than cpu_to_be16.

Also make sure to handle the struct ti_i2c_desc size parameter which is
returned in little-endian byte order.

Reported-by: Ludovic Drolez <ldrolez@debian.org>
Tested-by: Ludovic Drolez <ldrolez@debian.org>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb/xhci: fix compilation warning when !CONFIG_PCI && !CONFIG_PM

When CONFIG_PCI and CONFIG_PM are not selected, xhci.c gets this
warning:
drivers/usb/host/xhci.c:409:13: warning: ‘xhci_msix_sync_irqs’ defined
but not used [-Wunused-function]

Instead of creating nested #ifdefs, this patch fixes it by defining the
xHCI PCI stubs as inline.

This warning has been in since 3.2 kernel and was
caused by commit 421aa841a134f6a743111cf44d0c6d3b45e3cf8c
"usb/xhci: hide MSI code behind PCI bars", but wasn't noticed
until 3.13 when a configuration with these options was tried

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Cc: stable@vger.kernel.org # 3.2
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

xhci: extend quirk for Renesas cards

After suspend another Renesas PCI-X USB 3.0 card doesn't work.
[root@fedora-20 ~]# lspci -vmnnd 1912:
Device: 03:00.0
Class: USB controller [0c03]
Vendor: Renesas Technology Corp. [1912]
Device: uPD720202 USB 3.0 Host Controller [0015]
SVendor: Renesas Technology Corp. [1912]
SDevice: uPD720202 USB 3.0 Host Controller [0015]
Rev: 02
ProgIf: 30

This patch should be applied to stable kernel 3.14 that contain
the commit 1aa9578c1a9450fb21501c4f549f5b1edb557e6d
"xhci: Fix resume issues on Renesas chips in Samsung laptops"

Reported-and-tested-by: Anatoly Kharchenko <rfr-bugs@yandex.ru>
Reference: http://redmine.russianfedora.pro/issues/1315
Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Cc: stable@vger.kernel.org # 3.14
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

xhci: Switch Intel Lynx Point ports to EHCI on shutdown.

The same issue like with Panther Point chipsets. If the USB ports are
switched to xHCI on shutdown, the xHCI host will send a spurious interrupt,
which will wake the system. Some BIOS have work around for this, but not all.
One example is Compulab's mini-desktop, the Intense-PC2.

The bug can be avoided if the USB ports are switched back to EHCI on
shutdown.

This patch should be backported to stable kernels as old as 3.12,
that contain the commit 638298dc66ea36623dbc2757a24fc2c4ab41b016
"xhci: Fix spurious wakeups after S5 on Haswell"

Signed-off-by: Denis Turischev <denis@compulab.co.il>
Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: xhci: Prefer endpoint context dequeue pointer over stopped_trb

We have observed a rare cycle state desync bug after Set TR Dequeue
Pointer commands on Intel LynxPoint xHCs (resulting in an endpoint that
doesn't fetch new TRBs and thus an unresponsive USB device). It always
triggers when a previous Set TR Dequeue Pointer command has set the
pointer to the final Link TRB of a segment, and then another URB gets
enqueued and cancelled again before it can be completed. Further
investigation showed that the xHC had returned the Link TRB in the TRB
Pointer field of the Transfer Event (CC == Stopped -- Length Invalid),
but when xhci_find_new_dequeue_state() later accesses the Endpoint
Context's TR Dequeue Pointer field it is set to the first TRB of the
next segment.

The driver expects those two values to be the same in this situation,
and uses the cycle state of the latter together with the address of the
former. This should be fine according to the XHCI specification, since
the endpoint ring should be stopped when returning the Transfer Event
and thus should not advance over the Link TRB before it gets restarted.
However, real-world XHCI implementations apparently don't really care
that much about these details, so the driver should follow a more
defensive approach to try to work around HC spec violations.

This patch removes the stopped_trb variable that had been used to store
the TRB Pointer from the last Transfer Event of a stopped TRB. Instead,
xhci_find_new_dequeue_state() now relies only on the Endpoint Context,
requiring a small amount of additional processing to find the virtual
address corresponding to the TR Dequeue Pointer. Some other parts of the
function were slightly rearranged to better fit into this model.

This patch should be backported to kernels as old as 2.6.31 that contain
the commit ae636747146ea97efa18e04576acd3416e2514f5 "USB: xhci: URB
cancellation support."

Signed-off-by: Julius Werner <jwerner@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arm64: initialize spinlock for init_mm's context

ARM64 has defined the spinlock for init_mm's context, so need initialize
the spinlock structure; otherwise during the suspend flow it will dump
the info for spinlock's bad magic warning as below:

[   39.084394] Disabling non-boot CPUs ...
[   39.092871] BUG: spinlock bad magic on CPU#1, swapper/1/0
[   39.092896]  lock: init_mm+0x338/0x3e0, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
[   39.092907] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G           O 3.10.33 #125
[   39.092912] Call trace:
[   39.092927] [<ffffffc000087e64>] dump_backtrace+0x0/0x16c
[   39.092934] [<ffffffc000087fe0>] show_stack+0x10/0x1c
[   39.092947] [<ffffffc000765334>] dump_stack+0x1c/0x28
[   39.092953] [<ffffffc0007653b8>] spin_dump+0x78/0x88
[   39.092960] [<ffffffc0007653ec>] spin_bug+0x24/0x34
[   39.092971] [<ffffffc000300a28>] do_raw_spin_lock+0x98/0x17c
[   39.092979] [<ffffffc00076cf08>] _raw_spin_lock_irqsave+0x4c/0x60
[   39.092990] [<ffffffc000094044>] set_mm_context+0x1c/0x6c
[   39.092996] [<ffffffc0000941c8>] __new_context+0x94/0x10c
[   39.093007] [<ffffffc0000d63d4>] idle_task_exit+0x104/0x1b0
[   39.093014] [<ffffffc00008d91c>] cpu_die+0x14/0x74
[   39.093021] [<ffffffc000084f74>] arch_cpu_idle_dead+0x8/0x14
[   39.093030] [<ffffffc0000e7f18>] cpu_startup_entry+0x1ec/0x258
[   39.093036] [<ffffffc00008d810>] secondary_start_kernel+0x114/0x124

Signed-off-by: Leo Yan <leoy@marvell.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arm64: debug: remove noisy, pointless warning

Sending a SIGTRAP to a user task after execution of a BRK instruction at
EL0 is fundamental to the way in which software breakpoints work and
doesn't deserve a warning to be logged in dmesg. Whilst the warning can
be justified from EL1, do_debug_exception will already do the right thing,
so simply remove the code altogether.

Cc: Sandeepa Prabhu <sandeepa.prabhu@linaro.org>
Reported-by: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arm64: mm: Add THP TLB entries to general mmu_gather

When arm64 moved over to the core mmu_gather, it lost the logic to
flush THP TLB entries (tlb_remove_pmd_tlb_entry was removed and the
core implementation only signals that the mmu_gather needs a flush).

This patch ensures that tlb_add_flush is called for THP TLB entries.

Signed-off-by: Steve Capper <steve.capper@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

ARM: 8042/1: iwmmxt: allow to build iWMMXt on Marvell PJ4B

Some Marvell PJ4B CPUs also implement iWMMXt extensions. With a
proper check for iWMMXt coprocessors now in place, enable it by
default on PJ4B. While at it, also allow to manually select
the corresponding Kconfig option.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

ARM: 8041/1: pj4: fix cpu_is_pj4 check

Commit fdb487f5c961b94486a78fa61fa28b8eff1954ab
("ARM: 8015/1: Add cpu_is_pj4 to distinguish PJ4 because it
has some differences with V7")
introduced a cpuid check for Marvell PJ4 processors to fix a
regression caused by adding PJ4 based Marvell Dove into
multi_v7.

Unfortunately, this check is too narrow to catch PJ4 used on
Dove itself and breaks iWMMXt support.

This patch therefore relaxes the cpuid mask to match both PJ4
and PJ4B. Also, rework the given comment about PJ4/PJ4B
modifications to be a little bit more specific about the
differences.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

ARM: 8040/1: pj4: properly detect existence of iWMMXt coprocessor

commit fdb487f5c961b94486a78fa61fa28b8eff1954ab
  ("ARM: 8015/1: Add cpu_is_pj4 to distinguish PJ4 because it
    has some differences with V7")
introduced a fix for checking PJ4 cpuid to not use PJ4 specific
coprocessor access on non-PJ4 platforms.

Unfortunately, this in turn broke Marvell Armada 370/XP, both
comprising Marvell PJ4B CPUs without iWMMXt extension. Instead
of only checking for cpuid, which may not be sufficient to
determine iWMMXt support, the presence of iWMMXt coprocessors
can be checked by enabling and reading the Coprocessor ID
register (wCID, register 0 of CP1).

Therefore this adds an explicit check for the presence and correct
wCID value, before enabling iWMMXt capabilities. As a bonus, also
print the iWMMXt version of a detected coprocessor.

This has been tested to properly detect iWMMXt presence/absence on:
- PJ4,  CPUID 0x560f5815, wCID 0x56052001: Marvell Dove, iWMMXt v2
- PJ4B, CPUID 0x561f5811: Marvell Armada 370, no iWMMXt
- PJ4B, CPUID 0x562f5841, wCID 0x56052001: Marvell Armada 1500, iWMMXt v2
- PJ4B, CPUID 0x562f5842: Marvell Armada XP, no iWMMXt

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

ARM: 8039/1: pj4: enable iWMMXt only if CONFIG_IWMMXT is set

This fixes PJ4 coprocessor init to only expose iWMMXt capabilities,
if the corresponding kernel support for iWMMXt is enabled.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

ARM: 8038/1: iwmmxt: explicitly check for supported architectures

iwmmxt.S requires special treatment of coprocessor access registers
for PJ4 and XScale-based CPUs. It only checks for CPU_PJ4 and drops
down to XScale-based treatment on all other architectures.

As some PJ4B also come with iWMMXt and also need PJ4 treatment,
rework the corresponding preprocessor directives to explicitly
check for supported architectures and fail on unsupported ones.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Merge tag 'zynq-dt-fixes-for-3.15' of git://git.xilinx.com/linux-xlnx into fixes

arm: Xilinx Zynq DT fixes for v3.15

- Enable Zynq I2c
- Fix cpufreq DT binding

* tag 'zynq-dt-fixes-for-3.15' of git://git.xilinx.com/linux-xlnx:
ARM: zynq: dt: Add I2C nodes to Zynq device tree
ARM: zynq: DT: Add 'clock-latency' property

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Btrfs: correctly set profile flags on seqlock retry

If we had to retry on the profiles seqlock (due to a concurrent write), we
would set bits on the input flags that corresponded both to the current
profile and to previous values of the profile.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>

Btrfs: use correct key when repeating search for extent item

If skinny metadata is enabled and our first tree search fails to find a
skinny extent item, we may repeat a tree search for a "fat" extent item
(if the previous item in the leaf is not the "fat" extent we're looking
for). However we were not setting the new key's objectid to the right
value, as we previously used the same key variable to peek at the previous
item in the leaf, which has a different objectid. So just set the right
objectid to avoid modifying/deleting a wrong item if we repeat the tree
search.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>

Btrfs: fix inode caching vs tree log

Currently, with inode cache enabled, we will reuse its inode id immediately
after unlinking file, we may hit something like following:

|->iput inode
|->return inode id into inode cache
|->create dir,fsync
|->power off

An easy way to reproduce this problem is:

mkfs.btrfs -f /dev/sdb
mount /dev/sdb /mnt -o inode_cache,commit=100
dd if=/dev/zero of=/mnt/data bs=1M count=10 oflag=sync
inode_id=`ls -i /mnt/data | awk '{print $1}'`
rm -f /mnt/data

i=1
while [ 1 ]
do
        mkdir /mnt/dir_$i
        test1=`stat /mnt/dir_$i | grep Inode: | awk '{print $4}'`
        if [ $test1 -eq $inode_id ]
        then
dd if=/dev/zero of=/mnt/dir_$i/data bs=1M count=1 oflag=sync
echo b > /proc/sysrq-trigger
fi
sleep 1
        i=$(($i+1))
done

mount /dev/sdb /mnt
umount /dev/sdb
btrfs check /dev/sdb

We fix this problem by adding unlinked inode's id into pinned tree,
and we can not reuse them until committing transaction.

Cc: stable@vger.kernel.org
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

Btrfs: fix possible memory leaks in open_ctree()

Fix possible memory leaks in the following error handling paths:

read_tree_block()
btrfs_recover_log_trees
btrfs_commit_super()
btrfs_find_orphan_roots()
btrfs_cleanup_fs_roots()

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

Btrfs: avoid triggering bug_on() when we fail to start inode caching task

When running stress test(including snapshots,balance,fstress), we trigger
the following BUG_ON() which is because we fail to start inode caching task.

[  181.131945] kernel BUG at fs/btrfs/inode-map.c:179!
[  181.137963] invalid opcode: 0000 [#1] SMP
[  181.217096] CPU: 11 PID: 2532 Comm: btrfs Not tainted 3.14.0 #1
[  181.240521] task: ffff88013b621b30 ti: ffff8800b6ada000 task.ti: ffff8800b6ada000
[  181.367506] Call Trace:
[  181.371107]  [<ffffffffa036c1be>] btrfs_return_ino+0x9e/0x110 [btrfs]
[  181.379191]  [<ffffffffa038082b>] btrfs_evict_inode+0x46b/0x4c0 [btrfs]
[  181.387464]  [<ffffffff810b5a70>] ? autoremove_wake_function+0x40/0x40
[  181.395642]  [<ffffffff811dc5fe>] evict+0x9e/0x190
[  181.401882]  [<ffffffff811dcde3>] iput+0xf3/0x180
[  181.408025]  [<ffffffffa03812de>] btrfs_orphan_cleanup+0x1ee/0x430 [btrfs]
[  181.416614]  [<ffffffffa03a6abd>] btrfs_mksubvol.isra.29+0x3bd/0x450 [btrfs]
[  181.425399]  [<ffffffffa03a6cd6>] btrfs_ioctl_snap_create_transid+0x186/0x190 [btrfs]
[  181.435059]  [<ffffffffa03a6e3b>] btrfs_ioctl_snap_create_v2+0xeb/0x130 [btrfs]
[  181.444148]  [<ffffffffa03a9656>] btrfs_ioctl+0xf76/0x2b90 [btrfs]
[  181.451971]  [<ffffffff8117e565>] ? handle_mm_fault+0x475/0xe80
[  181.459509]  [<ffffffff8167ba0c>] ? __do_page_fault+0x1ec/0x520
[  181.467046]  [<ffffffff81185b35>] ? do_mmap_pgoff+0x2f5/0x3c0
[  181.474393]  [<ffffffff811d4da8>] do_vfs_ioctl+0x2d8/0x4b0
[  181.481450]  [<ffffffff811d5001>] SyS_ioctl+0x81/0xa0
[  181.488021]  [<ffffffff81680b69>] system_call_fastpath+0x16/0x1b

We should avoid triggering BUG_ON() here, instead, we output warning messages
and clear inode_cache option.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

Btrfs: move btrfs_{set,clear}_and_info() to ctree.h

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

btrfs: replace error code from btrfs_drop_extents

There's a case which clone does not handle and used to BUG_ON instead,
(testcase xfstests/btrfs/035), now returns EINVAL. This error code is
confusing to the ioctl caller, as it normally signifies errorneous
arguments.

Change it to ENOPNOTSUPP which allows a fall back to copy instead of
clone. This does not affect the common reflink operation.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

btrfs: Change the hole range to a more accurate value.

Commit 3ac0d7b96a268a98bd474cab8bce3a9f125aaccf fixed the btrfs expanding
write problem but the hole punched is sometimes too large for some
iovec, which has unmapped data ranges.
This patch will change to hole range to a more accurate value using the
counts checked by the write check routines.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

serial_core: fix uart PORT_UNKNOWN handling

While porting a RS485 driver from 2.6.29 to 3.14, i noticed that the serial tty
driver could break it by using uart ports that it does not own :

1. uart_change_pm ist called during uart_open and calls the uart pm function
   without checking for PORT_UNKNOWN.
   The fix is to move uart_change_pm from uart_open to uart_port_startup.
2. The return code from the uart request_port call in uart_set_info is not
   handled properly, leading to the situation that the serial driver also
   thinks it owns the uart ports.
   This can triggered by doing following actions :

   setserial /dev/ttyS0 uart none    # release the uart ports
   modprobe lirc-serial              # or any other device that uses the uart
   setserial /dev/ttyS0 uart 16550   # gives no error and the uart tty driver
                                     # can use the ports as well

Signed-off-by: Thomas Pfaff <tpfaff@pcs.com>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

serial: samsung: Change barrier() to cpu_relax() in console output

The two functions to write out to the console (one used in normal
console mode and one in polling console mode) were slightly different.
One used a barrier() in its loop and the other a cpu_relax(). The
barrier() really doesn't do anything since we're using rd_regl() to
read the port anyway. Switch it to cpu_relax() to make things
consistent.

No known bugs / issues are fixed by this change--it just makes things
more consistent.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

serial: samsung: don't check config for every character

The s3c24xx_serial_console_putchar() is _only_ ever used by
s3c24xx_serial_console_write() and is called in a loop (indirectly
through uart_console_write()). There's no reason to call
s3c24xx_port_configured() for every iteration through the loop. Move
it outside the loop.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

serial: samsung: Use the passed in "port", fixing kgdb w/ no console

The two functions in the samsung serial driver used for writing
characters out to the port were inconsistent about whether they used
the passed in "port" or the global "cons_uart".  There was no reason
to use the global and the use of the global in
s3c24xx_serial_put_poll_char() caused a crash in the case where you
used the serial port for kgdboc but not for console.

Fix it so we used the passed in variable.

Note that this doesn't fix all problems with the samsung serial
driver.  Specifically:
* s3c24xx_serial_console_putchar() is still 99% identical to
  s3c24xx_serial_put_poll_char() (the function signature is different,
  but that's about it).  A future patch will make them slightly less
  identical and judging by other serial drivers we may need yet more
  differences eventually.
* The samsung serial driver still doesn't allow you to have more than
  one console port since it still uses the global cons_uart in
  s3c24xx_serial_console_write().

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

serial: 8250: Fix thread unsafe __dma_tx_complete function

__dma_tx_complete is not protected against concurrent
call of serial8250_tx_dma. it can lead to circular tail
index corruption or parallel call of serial_tx_dma on the
same data portion.

This patch fixes this issue by holding the port lock.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

8250_core: Fix unwanted TX chars write

On transmit-hold-register empty, serial8250_tx_chars
should be called only if we don't use DMA.
DMA has its own tx cycle.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

tty: Fix race condition between __tty_buffer_request_room and flush_to_ldisc

The race was introduced while development of linux-3.11 by
e8437d7ecbc50198705331449367d401ebb3181f and
e9975fdec0138f1b2a85b9624e41660abd9865d4.
Originally it was found and reproduced on linux-3.12.15 and
linux-3.12.15-rt25, by sending 500 byte blocks with 115kbaud to the
target uart in a loop with 100 milliseconds delay.

In short:
1. The consumer flush_to_ldisc is on to remove the head tty_buffer.
2. The producer adds a number of bytes, so that a new tty_buffer must
be allocated and added by __tty_buffer_request_room.
3. The consumer removes the head tty_buffer element, without handling
newly committed data.

Detailed example:
* Initial buffer:
   * Head, Tail -> 0: used=250; commit=250; read=240; next=NULL
* Consumer: ''flush_to_ldisc''
   * consumed 10 Byte
   * buffer:
     * Head, Tail -> 0: used=250; commit=250; read=250; next=NULL
{{{
count = head->commit - head->read; // count = 0
if (!count) { // enter
// INTERRUPTED BY PRODUCER ->
if (head->next == NULL)
break;
buf->head = head->next;
tty_buffer_free(port, head);
continue;
}
}}}
* Producer: tty_insert_flip_... 10 bytes + tty_flip_buffer_push
   * buffer:
     * Head, Tail -> 0: used=250; commit=250; read=250; next=NULL
   * added 6 bytes: head-element filled to maximum.
     * buffer:
       * Head, Tail -> 0: used=256; commit=250; read=250; next=NULL
   * added 4 bytes: __tty_buffer_request_room is called
     * buffer:
       * Head -> 0: used=256; commit=256; read=250; next=1
       * Tail -> 1: used=4; commit=0; read=250 next=NULL
   * push (tty_flip_buffer_push)
     * buffer:
       * Head -> 0: used=256; commit=256; read=250; next=1
       * Tail -> 1: used=4; commit=4; read=250 next=NULL
* Consumer
{{{
count = head->commit - head->read;
if (!count) {
// INTERRUPTED BY PRODUCER <-
if (head->next == NULL) // -> no break
break;
buf->head = head->next;
tty_buffer_free(port, head);
// ERROR: tty_buffer head freed -> 6 bytes lost
continue;
}
}}}

This patch reintroduces a spin_lock to protect this case. Perhaps later
a lock-less solution could be found.

Signed-off-by: Manfred Schlaegl <manfred.schlaegl@gmx.at>
Cc: stable <stable@vger.kernel.org> # 3.11
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'vexpress/fixes-for-3.15' of git://git.linaro.org/people/pawel.moll/linux into fixes

ARM Versatile Express fixes for 3.15

This series contains straight-forward fixes for different
Versatile Express infrastructure drivers:

- NULL pointer dereference on the error path in the clk driver
- out of boundary array access in the dcscb driver
- broken restart/power off implementation
- mis-interpreted voltage unit in the spc driver

* tag 'vexpress/fixes-for-3.15' of git://git.linaro.org/people/pawel.moll/linux:
  ARM: vexpress/TC2: Convert OPP voltage to uV before storing
  power/reset: vexpress: Fix restart/power off operation
  arm/mach-vexpress: array accessed out of bounds
  clk: vexpress: NULL dereference on error path

Includes an update to 3.15-rc2

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

phy: core: make NULL a valid phy reference if !CONFIG_GENERIC_PHY

This fixes a regression on Keystone 2 platforms caused by patch
57303488cd37da58263e842de134dc65f7c626d5
"usb: dwc3: adapt dwc3 core to use Generic PHY Framework" which adds
optional support of generic phy in DWC3 core.

On Keystone 2 platforms the USB is not working now because
CONFIG_GENERIC_PHY isn't set and, as result, Generic PHY APIs stubs
return -ENOSYS always. The log shows:
dwc3 2690000.dwc3: failed to initialize core
dwc3: probe of 2690000.dwc3 failed with error -38

Hence, fix it by making NULL a valid phy reference in Generic PHY
APIs stubs in the same way as it was done by the patch
04c2facad8fee66c981a51852806d8923336f362 "drivers: phy: Make NULL
a valid phy reference".

Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

phy: fix kernel oops in phy_lookup()

The kernel oopses in phy_lookup() due to 'phy->init_data' being NULL if we
register PHYs from a device tree probing driver and then call phy_get() on a
device that has no representation in the device tree (e.g. a PCI device).
Checking the pointer before dereferening it and skipping an interation if
it's NULL prevents this kernel oops.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

phy: restore OMAP_CONTROL_PHY dependencies

When OMAP_CONTROL_USB was renamed to OMAP_CONTROL_PHY (commit
14da699b), its dependencies were lost in the process. Nothing in the
commit message indicates that this removal was intentional, so I think
it was by accident and the dependencies should be restored.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

phy: exynos: fix building as a module

The top-level phy-samsung-usb2 driver may be configured as a
loadable module, which currently causes link errors because
of the dependency on the exynos{5250,4x12,4210}_usb2_phy_config
symbol. Solving this could be achieved by exporting these
symbols, but as the SoC-specific parts of the driver are not
currently built as modules, it seems better to just link
everything into one module and avoid the need for the export.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

USB: serial: fix sysfs-attribute removal deadlock

Fix driver new_id sysfs-attribute removal deadlock by making sure to
not hold any locks that the attribute operations grab when removing the
attribute.

Specifically, usb_serial_deregister holds the table mutex when
deregistering the driver, which includes removing the new_id attribute.
This can lead to a deadlock as writing to new_id increments the
attribute's active count before trying to grab the same mutex in
usb_serial_probe.

The deadlock can easily be triggered by inserting a sleep in
usb_serial_deregister and writing the id of an unbound device to new_id
during module unload.

As the table mutex (in this case) is used to prevent subdriver unload
during probe, it should be sufficient to only hold the lock while
manipulating the usb-serial driver list during deregister. A racing
probe will then either fail to find a matching subdriver or fail to get
the corresponding module reference.

Since v3.15-rc1 this also triggers the following lockdep warning:

======================================================
[ INFO: possible circular locking dependency detected ]
3.15.0-rc2 #123 Tainted: G        W
-------------------------------------------------------
modprobe/190 is trying to acquire lock:
(s_active#4){++++.+}, at: [<c0167aa0>] kernfs_remove_by_name_ns+0x4c/0x94

but task is already holding lock:
(table_lock){+.+.+.}, at: [<bf004d84>] usb_serial_deregister+0x3c/0x78 [usbserial]

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (table_lock){+.+.+.}:
       [<c0075f84>] __lock_acquire+0x1694/0x1ce4
       [<c0076de8>] lock_acquire+0xb4/0x154
       [<c03af3cc>] _raw_spin_lock+0x4c/0x5c
       [<c02bbc24>] usb_store_new_id+0x14c/0x1ac
       [<bf007eb4>] new_id_store+0x68/0x70 [usbserial]
       [<c025f568>] drv_attr_store+0x30/0x3c
       [<c01690e0>] sysfs_kf_write+0x5c/0x60
       [<c01682c0>] kernfs_fop_write+0xd4/0x194
       [<c010881c>] vfs_write+0xbc/0x198
       [<c0108e4c>] SyS_write+0x4c/0xa0
       [<c000f880>] ret_fast_syscall+0x0/0x48

-> #0 (s_active#4){++++.+}:
       [<c03a7a28>] print_circular_bug+0x68/0x2f8
       [<c0076218>] __lock_acquire+0x1928/0x1ce4
       [<c0076de8>] lock_acquire+0xb4/0x154
       [<c0166b70>] __kernfs_remove+0x254/0x310
       [<c0167aa0>] kernfs_remove_by_name_ns+0x4c/0x94
       [<c0169fb8>] remove_files.isra.1+0x48/0x84
       [<c016a2fc>] sysfs_remove_group+0x58/0xac
       [<c016a414>] sysfs_remove_groups+0x34/0x44
       [<c02623b8>] driver_remove_groups+0x1c/0x20
       [<c0260e9c>] bus_remove_driver+0x3c/0xe4
       [<c026235c>] driver_unregister+0x38/0x58
       [<bf007fb4>] usb_serial_bus_deregister+0x84/0x88 [usbserial]
       [<bf004db4>] usb_serial_deregister+0x6c/0x78 [usbserial]
       [<bf005330>] usb_serial_deregister_drivers+0x2c/0x4c [usbserial]
       [<bf016618>] usb_serial_module_exit+0x14/0x1c [sierra]
       [<c009d6cc>] SyS_delete_module+0x184/0x210
       [<c000f880>] ret_fast_syscall+0x0/0x48

other info that might help us debug this:

Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(table_lock);
                               lock(s_active#4);
                               lock(table_lock);
  lock(s_active#4);

*** DEADLOCK ***

1 lock held by modprobe/190:
#0:  (table_lock){+.+.+.}, at: [<bf004d84>] usb_serial_deregister+0x3c/0x78 [usbserial]

stack backtrace:
CPU: 0 PID: 190 Comm: modprobe Tainted: G        W     3.15.0-rc2 #123
[<c0015e10>] (unwind_backtrace) from [<c0013728>] (show_stack+0x20/0x24)
[<c0013728>] (show_stack) from [<c03a9a54>] (dump_stack+0x24/0x28)
[<c03a9a54>] (dump_stack) from [<c03a7cac>] (print_circular_bug+0x2ec/0x2f8)
[<c03a7cac>] (print_circular_bug) from [<c0076218>] (__lock_acquire+0x1928/0x1ce4)
[<c0076218>] (__lock_acquire) from [<c0076de8>] (lock_acquire+0xb4/0x154)
[<c0076de8>] (lock_acquire) from [<c0166b70>] (__kernfs_remove+0x254/0x310)
[<c0166b70>] (__kernfs_remove) from [<c0167aa0>] (kernfs_remove_by_name_ns+0x4c/0x94)
[<c0167aa0>] (kernfs_remove_by_name_ns) from [<c0169fb8>] (remove_files.isra.1+0x48/0x84)
[<c0169fb8>] (remove_files.isra.1) from [<c016a2fc>] (sysfs_remove_group+0x58/0xac)
[<c016a2fc>] (sysfs_remove_group) from [<c016a414>] (sysfs_remove_groups+0x34/0x44)
[<c016a414>] (sysfs_remove_groups) from [<c02623b8>] (driver_remove_groups+0x1c/0x20)
[<c02623b8>] (driver_remove_groups) from [<c0260e9c>] (bus_remove_driver+0x3c/0xe4)
[<c0260e9c>] (bus_remove_driver) from [<c026235c>] (driver_unregister+0x38/0x58)
[<c026235c>] (driver_unregister) from [<bf007fb4>] (usb_serial_bus_deregister+0x84/0x88 [usbserial])
[<bf007fb4>] (usb_serial_bus_deregister [usbserial]) from [<bf004db4>] (usb_serial_deregister+0x6c/0x78 [usbserial])
[<bf004db4>] (usb_serial_deregister [usbserial]) from [<bf005330>] (usb_serial_deregister_drivers+0x2c/0x4c [usbserial])
[<bf005330>] (usb_serial_deregister_drivers [usbserial]) from [<bf016618>] (usb_serial_module_exit+0x14/0x1c [sierra])
[<bf016618>] (usb_serial_module_exit [sierra]) from [<c009d6cc>] (SyS_delete_module+0x184/0x210)
[<c009d6cc>] (SyS_delete_module) from [<c000f880>] (ret_fast_syscall+0x0/0x48)

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: wusbcore: fix panic in wusbhc_chid_set

If no valid CHID value has previously been set on an HWA, writing a
value of all zeros will cause a kernel panic in uwb_radio_stop because
wusbhc->uwb_rc has not been set. This patch skips the call to
uwb_radio_stop if wusbhc->uwb_rc has not been initialized.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: wusbcore: convert nested lock to use spin_lock instead of spin_lock_irq

Nesting a spin_lock_irq/unlock_irq inside a lock that has already
disabled interrupts will enable interrupts before we are ready when
spin_unlock_irq is called. This patch converts the inner lock to use
spin_lock and spin_unlock instead.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

uwb: don't call spin_unlock_irq in a USB completion handler

This patch converts the use of spin_lock_irq/spin_unlock_irq to
spin_lock_irqsave/spin_unlock_irqrestore in uwb_rc_set_drp_cmd_done
which is called from a USB completion handler. There are also
whitespace cleanups to make checkpatch.pl happy.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

usb: chipidea: coordinate usb phy initialization for different phy type

For internal PHY (like UTMI), the phy clock may from internal pll,
it is on/off on the fly, the access PORTSC.PTS will hang without
phy clock. So, the usb_phy_init which will open phy clock needs to
be called before hw_phymode_configure.
See: http://marc.info/?l=linux-arm-kernel&m=139350618732108&w=2

For external PHY (like ulpi), it needs to configure portsc.pts before
visit viewport, or the viewport can't be visited. so phy_phymode_configure
needs to be called before usb_phy_init.
See: cd0b42c2a6d2a74244f0053f8960f5dad5842278

It may not the best solution, but it can work for all situations.

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Cc: shc_work@mail.ru
Cc: denis@eukrea.com
Cc: festevam@gmail.com
Cc: stable <stable@vger.kernel.org> # 3.14
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'fixes-for-v3.15-rc3' of git://git./linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v3.15-rc3

Quite a few fixes this time since I lost v3.15-rc2
window.

Most fixes are MUSB which learned to remove its debugfs directories
properly, got a fix for PHY handling and now knows that it should
make sure its clocks aren't gated before trying to access registers.

ffs got a race fix between ffs_epfile_io() and ffs_func_eps_disable().

dwc3 got a fix for system suspend/resume and now only iterates over
valid endpoints when trying to resize TX fifos.

usb_get_phy() now will properly return an error if try_module_get() fails.

We also have a revert for a NAPI conversion on the ethernet gadget which
was causing a kernel BUG.

Signed-of-by: Felipe Balbi <balbi@ti.com>

Merge tag 'regulator-v3.15-rc2' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
"A couple of things here:

   - Fixes for pbias that didn't make it in during the merge window due
     to the driver coming in via MMC.  The conversion to use helpers is
     a fix as it implements list_voltage() which the main user (MMC)
     relies on for correct functioning.
   - Change the !REGULATOR stub for optional regulators to return an
     error rather than a dummy; this is more in keeping with the
     intended use of optional regulators and fixes some issues seen MMC
     where it got confused by a dummy being provided"

* tag 'regulator-v3.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: core: Return error in get optional stub
  regulator: pbias: Convert to use regmap helper functions
  regulator: pbias: Fix is_enabled callback implementation

Merge tag 'spi-v3.15-rc2' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
"A few driver specific fixes here:

   - SH HSPI was dealing with its clocks incorrectly which meant it
     didn't work on some SoCs, fixing this also requires a small fix to
     one of the SoC clock trees to avoid breaking existing users.
   - The SiRF driver appears to have had several quality problems, it's
     fairly new and not widely used so this isn't too worrying.
   - A brute force fix for excessive locking in the Atmel driver, it
     needs further investigation but this deals with the immediate
     issue.
   - A build fix for the Blackfin driver"

* tag 'spi-v3.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: atmel: Fix scheduling while atomic bug
  spi: sh-hspi: Do not specifically request shyway_clk clock
  ARM: shmobile: r8a7778: Use clks as MSTP007 parent
  spi: sirf: make GPIO chipselect function work well
  spi: sirf: set SPI controller in RISC IO chipselect mode
  spi: sirf: correct TXFIFO empty interrupt status bit
  spi: bfin5xx: fix build error

ACPI / notify: Do not block unknown type notifications in root handler

Commit 1a699476e258 "ACPI / hotplug / PCI: Hotplug notifications from
acpi_bus_notify()" changed the root notify handler, acpi_bus_notify(),
to block unknown type norifications, but it overlooked the fact that
they might be propagated to drivers via the ->notify() callback.

Fix the problem by allowing drivers to receive unknown type
notifications via ->notify() as before.

Fixes: 1a699476e258 (ACPI / hotplug / PCI: Hotplug notifications from acpi_bus_notify())
Reported-and-tested-by: Mantas Mikulėnas <grawity@gmail.com>
Reported-and-tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Merge branch 'fixes_for_v3.15' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping

Pull dma-mapping fix from Marek Szyprowski:
"A small fix for dma-mapping subsystem for ARM"

* 'fixes_for_v3.15' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
arm: dma-mapping: Fix mapping size value

Merge branch 'for-3.15-fixes' of git://git./linux/kernel/git/tj/libata

Pull libata fixes from Tejun Heo:
"Dan updated tag allocation to accomodate devices which choke when tags
  jump back and forth.  Quite a few ahci MSI related fixes.  A couple
  config dependency fixes and other misc fixes"

* 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata/ahci: accommodate tag ordered controllers
  ahci: Do not receive interrupts sent by dummy ports
  ahci: Use pci_enable_msi_exact() instead of pci_enable_msi_range()
  ahci: Ensure "MSI Revert to Single Message" mode is not enforced
  ahci: do not request irq for dummy port
  pata_samsung_cf: fix ata_host_activate() failure handling
  pata_arasan_cf: fix ata_host_activate() failure handling
  ata: fix i.MX AHCI driver dependencies
  pata_at91: fix ata_host_activate() failure handling
  libata: Update queued trim blacklist for M5x0 drives
  libata: make AHCI_XGENE depend on PHY_XGENE

ARM: vexpress/TC2: Convert OPP voltage to uV before storing

The SPC stores voltage in mV while the code assumes it was returning
uV. Convert the returned voltage to uV before storing. Also fix the
comment depicting voltage to uV.

Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>

power/reset: vexpress: Fix restart/power off operation

The restart/power off implementation in the vexpress driver
used to obtain the config function when necessary. This was
wrong in two respects:

1. It required memory allocation with disabled interrupts
(it worked, but lockdep - when enabled - reported warnings).

2. Used jiffies-based timeout, while jiffies are not running
at this stage of system shutdown (therefore a config
transaction error - if happened - would have never be reported).

Fixed by pre-allocating the config function per device
and using mdelay for timeout.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>

usb: phy: fsm: change "|" to "||" for condition OTG_STATE_A_WAIT_BCON at statemachine

We should be using logical "or" not bitwise "or".

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

usb: phy: fsm: update OTG HNP state transition

According to:"On-The-Go and Embedded Host Supplement to the USB Revision 2.0
Specification July 27, 2012 Revision 2.0 version 1.1a"

- add a_wait_vrise to a_wait_vfall
- update condition from a_wait_vrise to a_wait_bcon

Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

dt: tegra: remove non-existent clock IDs

The Tegra124 clock DT binding currently provides 3 clocks that don't
actually exist; 2 for NAND and one for UART5/UARTE. Delete these. While
this is technically an incompatible DT ABI change, nothing could have
used these clock IDs for anything practical, since the HW doesn't exist.

Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

clk: tegra: remove non-existent clocks

The Tegra124 clock driver currently provides 3 clocks that don't actually
exist; 2 for NAND and one for UART5/UARTE. Delete these.

Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ARM: tegra: remove UART5/UARTE from tegra124.dtsi

Tegra124 only has 4 UARTs. Parts of the documentation hint at a fifth
UART, but this appears to be left-over from earlier SoC documentation.
Remove the non-existent DT node for UART5.

Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'omap-for-v3.15/fixes-v2-signed' of git://git./linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps, mostly to fix some GPMC, DSS and USB issues for
device tree based booting. And turns out BeagleBoard xM A/B
needs it's own minimal dts in addition to the related u-boot
changes. Also few minor documentation and typo fixes are merged
to get them out of the way.

* tag 'omap-for-v3.15/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix GPMC remap for devices using an offset
  ARM: OMAP2+: Fix oops for GPMC free
  ARM: dts: Add support for the BeagleBoard xM A/B
  ARM: dts: Grammar /that will/it will/
  ARM: dts: Grammar /is uses/ is used/
  ARM: OMAP2+: Fix config name for USB3 PHY
  ARM: dts: am335x: update USB DT references
  ARM: dts: OMAP2+: remove uses of obsolete gpmc,device-nand
  ARM: AM335X: EVM: fix pinmux documentation in devicetree
  ARM: OMAP2+: N900: remove omapdss init for DT boot
  ARM: dts: dra7xx-clocks: Correct mcasp2_ahclkx_mux bit-shift
  ARM: dts: omap5: Add clocks to USB3 PHY node
  ARM: OMAP2+: hwmod: fix missing braces in _init()
  ARM: AM43xx: fix dpll init in bypass mode
  ARM: OMAP3: hwmod data: Correct clock domains for USB modules
  ARM: OMAP3: PM: remove access to PRM_VOLTCTRL register

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'ux500-defconfig-for-arm-soc' of git://git./linux/kernel/git/linusw/linux-stericsson into fixes

This is a patch set for some ST-Ericsson devices:
- Updates the Ux500 (U8500) defconfig
- Selects PARTITION_ADVANCED for Ux500 and U300
- Configure in IIO sensor drivers for the Ux500
- Configure in the CW1200 WLAN chip for the Ux500

* tag 'ux500-defconfig-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  ARM: ux500: configure for CW1200 WLAN chip
  ARM: ux500: configure in sensors
  ARM: u300: u300_defconfig: Enable PARTITION_ADVANCED
  ARM: ux500: u8500_defconfig: Enable PARTITION_ADVANCED
  ARM: ux500: update defconfig

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'renesas-fixes-for-v3.15' of git://git./linux/kernel/git/horms/renesas into fixes

Renesas ARM Based SoC Fixes Updates for v3.15

r8a7791 (R-Car M2) based koelsch board
* Correct renesas,gpios to renesas,groups in sd[012] pfc

8a7790 (R-Car H2) based lager board
* Correct SND_SOC_DAIFMT_CBx_CFx flags

r8a7740 (R-Mobile A1) SoC
* Drop address cells from GIC node

r8a7740 (R-Mobile A1) based Armadillo800 EVA board
* Correct SND_SOC_DAIFMT_CBx_CFx flags

sh73a0 (SH-Mobile AG5) SoC
* Drop address cells from GIC node

* tag 'renesas-fixes-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: koelsch: correct renesas,gpios to renesas,groups in sd[012] pfc
  ARM: shmobile: r8a7740: drop address cells from GIC node
  ARM: shmobile: sh73a0: drop address cells from GIC node
  ARM: shmobile: armadillo800eva: fixup SND_SOC_DAIFMT_CBx_CFx flags
  ARM: shmobile: lager: fixup SND_SOC_DAIFMT_CBx_CFx flags

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'renesas-dt5-for-v3.15' of git://git./linux/kernel/git/horms/renesas into fixes

Fifth Round of Renesas ARM Based SoC DT Updates for v3.15

Correct renesas,groups in SDHI nodes of for r8a7790 (R-Car H2) based
Lager board.

* tag 'renesas-dt5-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: lager: correct renesas,gpios to renesas,groups in sd[02] pfc

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'v3.15-rockchip-fixes1' of git://git./linux/kernel/git/mmind/linux-rockchip into fixes

Fixing uart-rx pull settings and a copy'n'paste error in a smp message

* tag 'v3.15-rockchip-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: rockchip: fix copy'n'paste error in smp error messages
ARM: rockchip: rk3188: enable pull-ups on UART RX pins

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'imx-fixes-3.15' of git://git./linux/kernel/git/shawnguo/linux into fixes

The i.MX fixes for 3.15:
- A couple of dts changes for the fallout of imx-drm binding update
- Parent DI clocks to video PLL for better HDMI support
- PCIe interrupt mapping and GIC node fixes
- A series of edmqmx6 board fixes
- Other small and random fixes on imx5 and imx6 dts

* tag 'imx-fixes-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: i.MX6: ipu_di_sel clocks can set parent rates
  ARM: imx6q: clk: Parent DI clocks to video PLL via di_pre_sel
  ARM: dts: imx: add required #clock-cells for fixed-clock
  ARM: dts: vybrid: drop address and size cells from GIC node
  ARM: dts: imx6sl-evk: Add an entry for MX6SL_PAD_ECSPI1_SS0__GPIO4_IO11
  ARM: dts: imx53: fix apparent copy/paste error
  ARM: dts: imx6q-gw5xxx: remove dead 'crtcs' property
  ARM: dts: imx53-tx53: add IPU DI ports and endpoints
  ARM: dts: imx6: edmqmx6: add second STMPE
  ARM: dts: imx6: edmqmx6: USB H1 only supports host mode
  ARM: dts: imx6: edmqmx6: Do not use the OTG switch as VBUS regulator
  ARM: dts: imx6: edmqmx6: Fix usbotg id pin
  ARM: dt: microsom: don't set bit 7 for ethernet mux settings
  ARM: imx6q-clk: parent lvds_gate from lvds_sel
  ARM: dts: imx: drop invalid size and address cells properties
  ARM: dts: mx5: fix wrong stmpe-ts bindings
  ARM: dts: imx53-m53evk: Fix memory region description
  ARM: dts: imx53-qsb-common: Fix memory region description
  ARM: dts: imx6: add PCIe interrupt mapping properties

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'mvebu-dt-fixes-non-crit-3.15' of git://git.infradead.org/linux-mvebu into fixes

mvebu DT fixes-non-critical (for v3.15-rc1)

- kirkwood
    - add some missing vendor prefixes to keep checkpatch happy

- mvebu
    - add clock ref to mdio node on 370/XP/38x

* tag 'mvebu-dt-fixes-non-crit-3.15' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: ensure the mdio node has a clock reference on Armada 38x
  ARM: mvebu: ensure the mdio node has a clock reference on Armada 370/XP
  ARM: Kirkwood: DT: Add missing vendor prefix
  ARM: Kirkwood: Fix Atmel vendor prefix

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ARM: tegra: remove TEGRA_EMC_SCALING_ENABLE

Commit a7cbe92cef27 ("ARM: tegra: remove tegra EMC scaling driver")
removed the only user of TEGRA_EMC_SCALING_ENABLE. Remove its Kconfig
entry too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ARM: Tidy up DTB Makefile entries

Few things were out of order:

- removed ARCH_BCM2835 duplicate
- shuffled ARCH_BCM_5301X, ARCH_U8500 and ARCH_U300 around so to keep the
list sorted

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Signed-by: Domenico Andreoli <domenico.andreoli@linux.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ARM: fix missing CLKSRC_OF on multi-platform

In commit ddb902cc34593e (ARM: centralize common multi-platform kconfig
options), CLKSRC_OF was removed from some platforms, but not added to
ARCH_MULTIPLATFORM. Fix this.

Reported-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ARM: spear: add __init to spear_clocksource_init()

I get a build warning because spear_clocksource_init() calls
clocksource_mmio_init(), but it doesn't have an __init annotation.
Fix that.

Signed-off-by: Alex Elder <elder@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ARM: pxa: hx4700.h: include "irqs.h" for PXA_NR_BUILTIN_GPIO

hx4700 needs the same fix as in
9705e74671f0e4f994d86b00cecf441917c64a66
"ARM: pxa: fix various compilation problems"

Fix build errors. Initial one is:
/linux/arch/arm/mach-pxa/include/mach/hx4700.h:18:32: error:
'PXA_NR_BUILTIN_GPIO' undeclared here (not in a function)
| #define HX4700_ASIC3_GPIO_BASE PXA_NR_BUILTIN_GPIO

Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>