Commit Graph

441547 Commits

Author SHA1 Message Date
Shawn Guo
71bb07c37b ARM: imx_v4_v5_defconfig: drop CONFIG_COMMON_CLK_DEBUG option
The option COMMON_CLK_DEBUG was removed by commit ea72dc2 (clk: remove
CONFIG_COMMON_CLK_DEBUG), so let's remove CONFIG_COMMON_CLK_DEBUG from
the defconfig.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:50 +08:00
Alexander Shiyan
c32e9c2f9f ARM: i.MX27 clk: Remove clk_register_clkdev() for unused clocks
This patch removes clk_register_clkdev() for the clocks that do not
have any users for non-DT boards and drivers.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:50 +08:00
Alexander Shiyan
7654874ebb ARM: i.MX27 clk: Add missing clocks for MSHC and RTIC
This patch adds missing clocks handling for the Memory Stick Host
Controller (MSHC) and Run-Time Integrity Checker (RTIC).

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:49 +08:00
Shawn Guo
886cda418b ARM: imx6q: add the missing esai_ahb clock
The esai_ahb clock is derived from ahb and used to provide ESAI the
capability of register accessing and FSYS clock source for I2S clocks
dividing.  The gate bits of this esai_ahb clock are shared with the
esai clock -- the baud clock, so we need to call imx_clk_gate2_shared()
for these two clocks.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:49 +08:00
Shawn Guo
f9f28cdf21 ARM: imx: add shared gate clock support
It's quite common on i.MX that one gate bit controls the gating of
multiple clocks, i.e. this is a shared gate.  The patch adds the
function imx_clk_gate2_shared() for such case.  The clocks controlled
by the same gate bits should call this function with a pointer to a
single share count variable, so that the gate bits will only be
operated on the first enabling and the last disabling of these shared
gate clocks.

Thanks to Gerhard Sittig <gsi@denx.de> for this idea.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:48 +08:00
Shawn Guo
94b5c02882 ARM: imx: lock is always valid for clk_gate2
The imx specific clk_gate2 always has a valid lock with the clock.  So
the validation on gate->lock is not really needed.  Remove it.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:48 +08:00
Shawn Guo
54ee1471f8 ARM: imx: define struct clk_gate2 on our own
The imx clk-gate2 driver implements an i.MX specific gate clock, which
has two bits controlling the gate states.  While this is a completely
separate gate driver from the common clk-gate one, it reuses the common
clk_gate structure.  Such reusing makes the extending of clk_gate2
clumsy.  Let's define struct clk_gate2 on our own to make the driver
independent of the common clk-gate one, and ease the clk_gate2 extending
at a later time.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:48 +08:00
Alexander Shiyan
1e56f8945d ARM: i.MX: Remove #ifdef CONFIG_OF
CONFIG_OF is always selected for i.MX.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:47 +08:00
Shawn Guo
9dc34da67b ARM: imx_v6_v7_defconfig: enable option CONFIG_LOCALVERSION_AUTO
Option CONFIG_LOCALVERSION_AUTO is quite helpful to tell kernel version.
I do not see any reason why we should unset it.  Let's remove the unset
to have it enabled.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:47 +08:00
Shawn Guo
5f48c914b5 ARM: imx: drop CONFIG_MMC_UNSAFE_RESUME from defconfig
Since 2501c91 (mmc: core: Use MMC_UNSAFE_RESUME as default behavior),
CONFIG_MMC_UNSAFE_RESUME is not available anymore.  Drop it from imx
defconfig.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:46 +08:00
Iain Paton
ee3387f97b ARM: imx6: clk: i.MX6 DualLite/Solo i2c4 clock
Compared to i.MX6 Quad/Dual the CCM_CCGR1 register in the i.MX6 Solo/DualLite
replaces the ecspi5 clock with the i2c4 clock.

Handle this difference using cpu_is_imx6dl().

Signed-off-by: Iain Paton <ipaton0@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:46 +08:00
Shawn Guo
4fcad49245 ARM: imx_v6_v7_defconfig: enable cpufreq and CMA support
- Enable imx6 cpufreq support with ondemand governor
 - Enable CMA support so that device like 1080p HDMI can work
 - Run savedefconfig

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-12 22:58:46 +08:00
Denis Carikli
656be7cfe5 ARM: imx_v6_v7_defconfig: Add more drm drivers.
The DRM_PANEL_SIMPLE is needed by the eukrea
mbimxsd51's displays.

Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:28 +08:00
Fabio Estevam
84ffe9c0ed ARM: mxs_defconfig: Select CONFIG_CRYPTO_DEV_MXS_DCP
Let CONFIG_CRYPTO_DEV_MXS_DCP driver to be built by default.

Generated by doing:

make mxs_defconfig
Manually selected the CONFIG_CRYPTO_DEV_MXS_DCP driver
make savedefconfig
cp defconfig arch/arm/configs/mxs_defconfig

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:28 +08:00
Gilles Chanteperdrix
876292d667 ARM: imx: factor device tree timer initialization
Signed-off-by: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:28 +08:00
Fabio Estevam
bc02cd6982 ARM: imx: Remove mx51_babbage board file
The device tree version for the babbage board (imx51-babbage.dtb) has a more
complete support than the board file version, so remove the board file source
code.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:28 +08:00
Philipp Zabel
4849f25069 ARM: i.MX5: Remove outdated VPU clock lookups
CODA7 clock lookups are now defined in the device tree.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:27 +08:00
Denis Carikli
61a3f6e753 ARM: imx_v4_v5_defconfig: Enable drivers for i.MX25/i.MX35 USB support.
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-30 13:40:27 +08:00
Alexander Shiyan
ddeef94e3a ARM: i.MX: mx21ads: Cleanup board
- Remove unused <asm/mach/time.h> inclusion.
- Use predefined constant for CS8900A base address.
- Use DEFINE_RES_MEM() macro for NOR flash resource.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-04-30 13:40:27 +08:00
Alexander Shiyan
6b961bad80 ARM: i.MX: mx21ads: Use fixed voltage regulator for LCD power
Instead of using init() and exit() hooks from framebuffer driver
to control power of LCD, introduce fixed voltage regulator for
this purpose.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-04-30 13:40:27 +08:00
Stefan Agner
cfdb7d564c ARM: vf610: add UART choice for low-level debug
Add choice for low-level debug UART. Similar to i.MX6, there is a
numeric configuration, valid choices are 0 to 3.
Note that the kernel assumes that the boot loader initialized clock
properly.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-04-30 13:40:27 +08:00
Alexander Shiyan
477fbf1db8 ARM: i.MX: mx21ads: Replace direct handling of peripheral bits with GPIOs
This patch replaces direct handling of peripheral bits with GPIOs by
using basic-mmio-gpio driver. As a result this change eliminate some
low-level code and removes custom io_map() from the board.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2014-04-30 13:40:27 +08:00
Linus Torvalds
d1db0eea85 Linux 3.15-rc3 2014-04-27 19:29:27 -07:00
Will Deacon
ec6931b281 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>
2014-04-27 15:20:05 -07:00
Linus Torvalds
ac6c9e2bed 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
2014-04-27 15:08:12 -07:00
Linus Torvalds
33c0022f0e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/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()
2014-04-27 13:26:28 -07:00
Linus Torvalds
2b9d1c050d 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
2014-04-27 12:55:04 -07:00
Linus Torvalds
afa3cad746 - 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
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/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
2014-04-27 12:54:05 -07:00
Linus Torvalds
d9e9e8e2fe Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/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
2014-04-27 11:21:03 -07:00
Linus Torvalds
a8d706986c TTY/Serial fixes for 3.15-rc3
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.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.15-rc3' of git://git.kernel.org/pub/scm/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
2014-04-27 10:39:09 -07:00
Linus Torvalds
d0c15ad760 Staging / IIO driver fixes for 3.15-rc3
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.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.15-rc3' of git://git.kernel.org/pub/scm/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
2014-04-27 10:34:29 -07:00
Linus Torvalds
005fbcd034 Driver core fixes for 3.15-rc3
Here are some kernfs fixes for 3.15-rc3 that resolve some reported
 problems.  Nothing huge, but all needed.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.15-rc3' of git://git.kernel.org/pub/scm/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
2014-04-27 10:28:34 -07:00
Linus Torvalds
fefb82756e USB fixes for 3.15-rc3
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.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.15-rc3' of git://git.kernel.org/pub/scm/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
  ...
2014-04-27 10:24:17 -07:00
Linus Torvalds
e9dba83764 ACPI and power management fixes for 3.15-rc3
- 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.
 
 /
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Merge tag 'pm+acpi-3.15-rc3' of git://git.kernel.org/pub/scm/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
2014-04-27 10:19:06 -07:00
Chris Mason
cfd4a535b6 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>
2014-04-26 05:02:03 -07:00
Linus Torvalds
1cf35d4771 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>
2014-04-25 16:05:40 -07:00
Rafael J. Wysocki
d4c9c8a09c 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
2014-04-26 00:40:25 +02:00
Linus Torvalds
9a60ee117b ltc2945: Don't unecessarily crash kernel on implementation error
vexpress: Fix 'name' and 'label' attributes
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/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
2014-04-25 13:12:25 -07:00
Linus Torvalds
6dda80ffa4 SCSI fixes on 20140425
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.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/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()
2014-04-25 13:07:24 -07:00
Linus Torvalds
3fe89d2e76 ARM: SoC fixes for 3.15-rc3:
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 sporadic 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
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Merge tag 'fixes-3.15-rc3' of git://git.kernel.org/pub/scm/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
  ...
2014-04-25 13:02:02 -07:00
Linus Torvalds
625bba662c 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.
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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
2014-04-25 12:40:32 -07:00
Linus Torvalds
b8e6dece37 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
2014-04-25 12:39:05 -07:00
Christian Borntraeger
0c8c77d355 s390/ccwgroup: Fix memory corruption
commit 0b60f9ead5 (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>
2014-04-25 12:25:14 -07:00
Tejun Heo
b44b214026 kernfs: add back missing error check in kernfs_fop_mmap()
While updating how mmap enabled kernfs files are handled by lockdep,
9b2db6e189 ("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>
2014-04-25 12:25:13 -07:00
Jianyu Zhan
c1befb8859 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>
2014-04-25 12:25:13 -07:00
Bjørn Mork
34f972d615 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>
2014-04-25 11:35:04 -07:00
Bjørn Mork
dd6b48ecec 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>
2014-04-25 11:35:04 -07:00
Bjørn Mork
533b399461 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>
2014-04-25 11:35:04 -07:00
Bjørn Mork
bce4f588f1 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>
2014-04-25 11:35:04 -07:00
Bjørn Mork
70a3615fc0 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>
2014-04-25 11:35:04 -07:00