Commit graph

534,192 commits

Author SHA1 Message Date
Martin Fuzzey
ecabae7131 iio: mma8452: Initialise before activating
Many of the hardware configuration registers may only be modified while the
device is inactive.

Currently the probe code first activates the device and then modifies the
registers (eg to set the scale). This doesn't actually work but is not
noticed since the scale used is the default value.

While at it also issue a hardware reset command at probe time.

Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 10:29:07 +01:00
Vlad Dogaru
00e0c8e8e8 iio: gyro: bmg160: decouple buffer and triggers
Make it possible to use buffering with an external trigger, such as one
based on sysfs or hrtimer.

Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 10:26:54 +01:00
Vlad Dogaru
eb2191017e iio: gyro: bmg160: remove redundant field
Replace the 'timestamp' field in struct bmg160_data with the identically
named field in iio_poll_func and with calls to iio_get_time_ns().

The reported timestamps may be slightly different, but the advantage is
that we no longer assume that the buffer of bmg160 is triggered by its
own trigger.

Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 10:24:36 +01:00
Lars-Peter Clausen
fcc1b2f57d iio: __iio_update_buffers: Perform request_update() only for new buffers
We only have to call the request_update() callback for a newly inserted
buffer. The configuration of the already previously active buffers will not
have changed.

This also allows us to move the request_update() call to the beginning of
__iio_update_buffers(), before any currently active buffers are stopped.
This makes the error handling a lot easier since no changes were made to
the buffer list and no rollback needs to be performed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 10:01:45 +01:00
Lars-Peter Clausen
248be5aafc iio: __iio_update_buffers: Slightly refactor scan mask memory management
Add a small helper function iio_free_scan_mask() that takes a mask and
frees its memory if the scan masks for the device are dynamically
allocated, otherwise does nothing. This means we don't have to open-code
the same check over and over again in __iio_update_buffers.

Also free compound_mask as soon a we are done using it. This constrains its
usage to a specific region of the function will make further refactoring
and splitting the function into smaller sub-parts more easier.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:45:22 +01:00
Lars-Peter Clausen
63223c5f5c iio: Replace printk in __iio_update_buffers with dev_dbg
While more verbose error messages are useful for debugging we should really
not put those error messages into the kernel log for normal errors that are
already reported to the application via the error code, when running in
non-debug mode.

Otherwise application authors might expect that this is part of the ABI and
to get the error they should scan the kernel log. Which would be rather
error prone itself since there is no direct mapping between a operation and
the error message so it is impossible to find out which error message
belongs to which error.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:41:43 +01:00
Dmitry Eremin-Solenikov
b87b0c0f81 iio: add m62332 DAC driver
m62332 is a simple 2-channel DAC used on several Sharp Zaurus boards to
control LCD voltage, backlight and sound. The driver use regulators to
control the reference voltage and enabling/disabling the DAC.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:37:45 +01:00
Kuppuswamy Sathyanarayanan
c06cee8d08 iio: ltr501: Add light channel support
Added support to calculate lux value from visible
and IR spectrum adc count values. Also added IIO_LIGHT
channel to enable user read the lux value directly
from device using illuminance input ABI.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:14:10 +01:00
Fabio Estevam
c24e7daf82 iio: pressure: hid-sensor-press: Fix memory leak in probe()
'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:10:33 +01:00
Fabio Estevam
2bd0462843 iio: orientation: hid-sensor-rotation: Fix memory leak in probe()
'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:10:25 +01:00
Fabio Estevam
32ee56e306 iio: orientation: hid-sensor-incl-3d: Fix memory leak in probe()
'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:10:14 +01:00
Fabio Estevam
9ecdbed790 iio: light: hid-sensor-als.c: Fix memory leak in probe()
'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:10:05 +01:00
Fabio Estevam
d8c9d23e29 iio: gyro: hid-sensor-gyro-3d: Fix memory leak in probe()
'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:09:49 +01:00
Fabio Estevam
b136faff9b iio: accel: hid-sensor-accel-3d: Fix memory leak in probe()
'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:09:05 +01:00
Ingo Molnar
cffc32975d Merge branch 'x86/asm' into x86/apic, to resolve conflicts
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-17 07:58:08 +02:00
Denys Vlasenko
adeb553784 x86/asm/entry/64: Use shorter MOVs from segment registers
The "movw %ds,%cx" instruction needs a 0x66 prefix, while
"movl %ds,%ecx" does not.

The difference is that latter form (on 64-bit CPUs)
overwrites the entire %ecx, not only its lower half.

But subsequent code doesn't depend on the value of upper
half of %ecx, so we can safely use the shorter instruction.

The new code is also faster than the old one - now we don't
depend on the old value of %ecx, but this code fragment is
not performance-critical so it does not matter much.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1431722346-26585-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-17 07:57:54 +02:00
Borislav Petkov
e839004b49 x86/asm/head*.S: Change global labels to local
Make the disassembly look less confusing:

  -- head_64.o.before.asm
  ++ head_64.o.after.asm
   0000000000000120 <early_idt_handler>:
    120:	fc                   	cld
    121:	83 3c 24 02          	cmpl   $0x2,(%rsp)
  - 125:	0f 84 9d 00 00 00    	je     1c8 <is_nmi>
  + 125:	0f 84 9d 00 00 00    	je     1c8 <early_idt_handler+0xa8>
    12b:	83 3d 00 00 00 00 02 	cmpl   $0x2,0x0(%rip)        # 132 <early_idt_handler+0x12>
    132:	74 7e                	je     1b2 <early_idt_handler+0x92>
    134:	ff 05 00 00 00 00    	incl   0x0(%rip)        # 13a <early_idt_handler+0x1a>
  @@ -1198,9 +1198,7 @@ Disassembly of section .init.text:
    1bf:	5a                   	pop    %rdx
    1c0:	59                   	pop    %rcx
    1c1:	58                   	pop    %rax
  - 1c2:	ff 0d 00 00 00 00    	decl   0x0(%rip)        # 1c8 <is_nmi>
  -
  -00000000000001c8 <is_nmi>:
  + 1c2:	ff 0d 00 00 00 00    	decl   0x0(%rip)        # 1c8 <early_idt_handler+0xa8>
    1c8:	48 83 c4 10          	add    $0x10,%rsp
    1cc:	48 cf                	iretq

  -- head_32.o.before.asm
  ++ head_32.o.after.asm
   0000016c <early_idt_handler>:
    16c:  fc                      cld
    16d:  83 3c 24 02             cmpl   $0x2,(%esp)
  - 171:  74 73                   je     1e6 <is_nmi>
  + 171:  74 73                   je     1e6 <ex_entry+0xc>
    173:  36 83 3d 00 00 00 00    cmpl   $0x2,%ss:0x0
    17a:  02
    17b:  74 5a                   je     1d7 <hlt_loop>
  @@ -483,8 +483,6 @@ Disassembly of section .init.text:
    1dd:  59                      pop    %ecx
    1de:  58                      pop    %eax
    1df:  36 ff 0d 00 00 00 00    decl   %ss:0x0
  -
  -000001e6 <is_nmi>:
    1e6:  83 c4 08                add    $0x8,%esp
    1e9:  cf                      iret
    1ea:  66 90                   xchg   %ax,%ax

No functionality change.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1431793079-11153-1-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-17 07:57:53 +02:00
Ingo Molnar
75d95d8488 Merge branch 'linus' into x86/asm, to resolve conflicts
Conflicts:
	tools/testing/selftests/x86/Makefile
	tools/testing/selftests/x86/run_x86_tests.sh
2015-05-17 07:57:31 +02:00
Ingo Molnar
52648e83c9 x86: Pack loops tightly as well
Packing loops tightly (-falign-loops=1) is beneficial to code size:

     text        data    bss     dec              filename
 12566391        1617840 1089536 15273767         vmlinux.align.16-byte
 12224951        1617840 1089536 14932327         vmlinux.align.1-byte
 11976567        1617840 1089536 14683943         vmlinux.align.1-byte.funcs-1-byte
 11903735        1617840 1089536 14611111         vmlinux.align.1-byte.funcs-1-byte.loops-1-byte

Which reduces the size of the kernel by another 0.6%, so the
the total combined size reduction of the alignment-packing
patches is ~5.5%.

The x86 decoder bandwidth and caching arguments laid out in:

  be6cb02779 ("x86: Align jump targets to 1-byte boundaries")

apply to loop alignment as well.

Furtermore, modern CPU uarchs have a loop cache/buffer that
is a L0 cache before even any uop cache, covering a few
dozen most recently executed instructions.

This loop cache generally does not have the 16-byte alignment
restrictions of the uop cache.

Now loop alignment can still be beneficial if:

 - a loop is cache-hot and its surroundings are not.

 - if the loop is so cache hot that the instruction
   flow becomes x86 decoder bandwidth limited

But loop alignment is harmful if:

 - a loop is cache-cold

 - a loop's surroundings are cache-hot as well

 - two cache-hot loops are close to each other

 - if the loop fits into the loop cache

 - if the code flow is not decoder bandwidth limited

and I'd argue that the latter five scenarios are much
more common in the kernel, as our hottest loops are
typically:

 - pointer chasing: this should fit into the loop cache
   in most cases and is typically data cache and address
   generation limited

 - generic memory ops (memset, memcpy, etc.): these generally
   fit into the loop cache as well, and are likewise data
   cache limited.

So this patch packs loop addresses tightly as well.

Acked-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jason Low <jason.low2@hp.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Link: http://lkml.kernel.org/r/20150410123017.GB19918@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-17 07:56:54 +02:00
Nicholas Mc Guire
58ac93e4f2 sched: Fix function declaration return type mismatch
static code checking was unhappy with:

  ./kernel/sched/fair.c:162 WARNING: return of wrong type
                int != unsigned int

get_update_sysctl_factor() is declared to return int but is
currently  returning an unsigned int. The first few preprocessed
lines are:

 static int get_update_sysctl_factor(void)
 {
 unsigned int cpus = ({ int __min1 = (cpumask_weight(cpu_online_mask));
 int __min2 = (8); __min1 < __min2 ? __min1: __min2; });
 unsigned int factor;

The type used by min_t() should be 'unsigned int' and the return type
of get_update_sysctl_factor() should also be 'unsigned int' as its
call-site update_sysctl() is expecting 'unsigned int' and the values
utilizing:

  'factor'
  'sysctl_sched_min_granularity'
  'sched_nr_latency'
  'sysctl_sched_wakeup_granularity'

... are also all 'unsigned int', plus cpumask_weight() is also
returning 'unsigned int'.

So the natural type to use around here is 'unsigned int'.

( Patch was compile tested with x86_64_defconfig +
  CONFIG_SCHED_DEBUG=y and the changed sections in
  kernel/sched/fair.i were reviewed. )

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
[ Improved the changelog a bit. ]
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1431716742-11077-1-git-send-email-hofrat@osadl.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-17 06:47:46 +02:00
Linus Torvalds
c0655fe9b0 USB fixes for 4.1-rc4
Here are some USB fixes and new device ids for 4.1-rc4.  All are pretty
 minor, and have been in linux-next successfully.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some USB fixes and new device ids for 4.1-rc4.

  All are pretty minor, and have been in linux-next successfully"

* tag 'usb-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb-storage: Add NO_WP_DETECT quirk for Lacie 059f:0651 devices
  Added another USB product ID for ELAN touchscreen quirks.
  xhci: gracefully handle xhci_irq dead device
  xhci: Solve full event ring by increasing TRBS_PER_SEGMENT to 256
  xhci: fix isoc endpoint dequeue from advancing too far on transaction error
  usb: chipidea: debug: avoid out of bound read
  USB: visor: Match I330 phone more precisely
  USB: pl2303: Remove support for Samsung I330
  USB: cp210x: add ID for KCF Technologies PRN device
  usb: gadget: remove incorrect __init/__exit annotations
  usb: phy: isp1301: work around tps65010 dependency
  usb: gadget: serial: fix re-ordering of tx data
  usb: gadget: hid: Fix static variable usage
  usb: gadget: configfs: Fix interfaces array NULL-termination
  usb: gadget: xilinx: fix devm_ioremap_resource() check
  usb: dwc3: dwc3-omap: correct the register macros
2015-05-16 21:15:59 -07:00
Linus Torvalds
dd8edd7e97 TTY/Serial fixes for 4.1-rc4
Here's some TTY and serial driver fixes for reported issues.  All of
 these have been in linux-next successfully.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here's some TTY and serial driver fixes for reported issues.

  All of these have been in linux-next successfully"

* tag 'tty-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  pty: Fix input race when closing
  tty/n_gsm.c: fix a memory leak when gsmtty is removed
  Revert "serial/amba-pl011: Leave the TX IRQ alone when the UART is not open"
  serial: omap: Fix error handling in probe
  earlycon: Revert log warnings
2015-05-16 21:10:05 -07:00
Linus Torvalds
3f4741b1d8 Staging / IIO driver fixes for 4.1-rc4
Here's some staging and iio driver fixes to resolve a number of reported
 issues.  All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / IIO driver fixes from Greg KH:
 "Here's some staging and iio driver fixes to resolve a number of
  reported issues.

  All of these have been in linux-next for a while"

* tag 'staging-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (31 commits)
  iio: light: hid-sensor-prox: Fix memory leak in probe()
  iio: adc: cc10001: Add delay before setting START bit
  iio: adc: cc10001: Fix regulator_get_voltage() return value check
  iio: adc: cc10001: Fix incorrect use of power-up/power-down register
  staging: gdm724x: Correction of variable usage after applying ALIGN()
  iio: adc: cc10001: Fix the channel number mapping
  staging: vt6655: lock MACvWriteBSSIDAddress.
  staging: vt6655: CARDbUpdateTSF bss timestamp correct tsf counter value.
  staging: vt6655: vnt_tx_packet Correct TX order of OWNED_BY_NIC
  staging: vt6655: Fix 80211 control and management status reporting.
  staging: vt6655: implement IEEE80211_TX_STAT_NOACK_TRANSMITTED
  staging: vt6655: device_free_tx_buf use only ieee80211_tx_status_irqsafe
  staging: vt6656: use ieee80211_tx_info to select packet type.
  staging: rtl8712: freeing an ERR_PTR
  staging: sm750: remove incorrect __exit annotation
  iio: kfifo: Set update_needed to false only if a buffer was allocated
  iio: mcp320x: Fix occasional incorrect readings
  iio: accel: mma9553: check input value for activity period
  iio: accel: mma9553: add enable channel for activity
  iio: accel: mma9551_core: prevent buffer overrun
  ...
2015-05-16 21:04:56 -07:00
Linus Torvalds
148c46f3e1 Char/misc fix for 4.1-rc4
Here is one fix, in the extcon subsystem, that resolves a reported
 issue.  It's been in linux-next for a number of weeks now, sorry for not
 getting it to you sooner.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fix from Greg KH:
 "Here is one fix, in the extcon subsystem, that resolves a reported
  issue.

  It's been in linux-next for a number of weeks now, sorry for not
  getting it to you sooner"

* tag 'char-misc-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  extcon: usb-gpio: register extcon device before IRQ registration
2015-05-16 20:48:42 -07:00
Jacek Anaszewski
a1c0013c71 ARM: dts: add support JPEG codec for exynos3250-rinato
This patch adds support jpeg for exynos3250-rinato board.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 11:00:30 +09:00
Inha Song
7a548b1f46 ARM: dts: support simple-audio-card for exynos5420 and exynos5422-odroidxu3
Add MAX98090 audio codec, I2S interface and the sound nodes
to support audio on exynos5422-odroidxu3 board. Now we can
support audio using simple-audio-card DT binding.

Signed-off-by: Inha Song <ideal.song@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:58:02 +09:00
Marek Szyprowski
f470b85950 ARM: dts: add jpeg-codec node for exynos4 and exynos4x12
This patch adds nodes for hardware JPEG codec found in exynos4210
and exynos4x12 SoCs.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:52:00 +09:00
Krzysztof Kozlowski
ce9940a9a4 ARM: dts: Enable S3C RTC on exynos4412-trats2 and exynos5420-arndale-octa
Extend the S3C RTC node with rtc_src clock so it could be operational.
The rtc_src clock is provided by MAX77686 (Trats2) or S2MPS11 (Arndale
Octa).

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:51:59 +09:00
Krzysztof Kozlowski
c5abf61999 ARM: dts: Use define for s3c-rtc clock id for exynos3250-monk
Use a define instead of raw number as a ID for "rtc_src" clock.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:51:58 +09:00
Krzysztof Kozlowski
9f802938bf ARM: dts: Use define for s3c-rtc clock id for exynos3250-rinato
Use a define instead of raw number as a ID for "rtc_src" clock.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:51:52 +09:00
Krzysztof Kozlowski
062f49c460 ARM: dts: Use s3c6410-rtc instead of exynos3250-rtc for exynos3250/4415
Mark "samsung,exynos3250-rtc" compatible as deprecated because it
duplicates the "samsung,s3c6410-rtc". Use "samsung,s3c6410-rtc" on
Exynos3250 and Exynos4415 boards.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:51:32 +09:00
Markus Reichl
4edf606cd6 ARM: dts: add 'rtc_src' clock to rtc node for exynos5422-odroidxu3
The Exynos5422 SoC has a s3c6410 RTC where the source clock
is now a mandatory property.

This patch fixes probe failure of s3c-rtc on Odroid-XU3 boards.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:51:24 +09:00
Markus Reichl
b6025b1040 clk: samsung: Add bindings for 32kHz clocks from s2mps11
This creates include/dt-bindings/clock/samsung,s2mps11.h with
the three 32kHz clock outputs from the s2mps11 mfd.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:51:10 +09:00
Krzysztof Kozlowski
1fed225271 ARM: dts: fix pinctrl for s2mps11-irq on exynos5420-arndale-octa
On Arndale Octa the S2MPS11 RTC alarm interrupt was not handled
at all because of wrong configuration of interrupt and gpx3-2.
1. Interrupt is signaled by falling edge.
2. This GPIO line is hard-wired on the board to PVDD_APIO_1V8
   through a resistor so pull-up/down must be disabled.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:51:06 +09:00
Tomeu Vizoso
d1ed0d2169 ARM: dts: Add syscon property to the MIPI phy in exynos5420
Since commit e4b3d38088 ("phy: exynos-video-mipi: Fix regression by
adding support for PMU regmap") the syscon property is required in
samsung,s5pv210-mipi-video-phy nodes, but this DTS hadn't been updated
yet.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-17 10:50:44 +09:00
Linus Torvalds
92752b5cdd Merge branch 'for-linus-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML hostfs fix from Richard Weinberger:
 "This contains a single fix for a regression introduced in 4.1-rc1"

* 'for-linus-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  hostfs: Use correct mask for file mode
2015-05-16 16:33:59 -07:00
Linus Torvalds
1630ee5e01 This pull request contains a single bug fix for the UBI block driver.
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Merge tag 'upstream-4.1-rc4' of git://git.infradead.org/linux-ubifs

Pull UBI bufix from Richard Weinberger:
 "This contains a single bug fix for the UBI block driver"

* tag 'upstream-4.1-rc4' of git://git.infradead.org/linux-ubifs:
  UBI: block: Add missing cache flushes
2015-05-16 16:28:01 -07:00
Linus Torvalds
6a8098a447 Fix a number of ext4 bugs; the most serious of which is a bug in the
lazytime mount optimization code where we could end up updating the
 timestamps to the wrong inode.
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Merge tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Fix a number of ext4 bugs; the most serious of which is a bug in the
  lazytime mount optimization code where we could end up updating the
  timestamps to the wrong inode"

* tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix an ext3 collapse range regression in xfstests
  jbd2: fix r_count overflows leading to buffer overflow in journal recovery
  ext4: check for zero length extent explicitly
  ext4: fix NULL pointer dereference when journal restart fails
  ext4: remove unused function prototype from ext4.h
  ext4: don't save the error information if the block device is read-only
  ext4: fix lazytime optimization
2015-05-16 15:55:31 -07:00
Linus Torvalds
c7309e88a6 Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "The first commit is a fix from Filipe for a very old extent buffer
  reuse race that triggered a BUG_ON.  It hasn't come up often, I looked
  through old logs at FB and we hit it a handful of times over the last
  year.

  The rest are other corners he hit during testing"

* 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix race when reusing stale extent buffers that leads to BUG_ON
  Btrfs: fix race between block group creation and their cache writeout
  Btrfs: fix panic when starting bg cache writeout after IO error
  Btrfs: fix crash after inode cache writeback failure
2015-05-16 15:50:58 -07:00
Linus Torvalds
518af3cb8c Merge branch 'master' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "Seven small fixes.  The shortlog below is a good description so no
  need to elaborate.

  It has sat in linux-next and survived the usual automated testing by
  Imagination's test farm"

* 'master' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: tlb-r4k: Fix PG_ELPA comment
  MIPS: Fix up obsolete cpu_set usage
  MIPS: IP32: Fix build errors in reset code in DS1685 platform hook.
  MIPS: KVM: Fix unused variable build warning
  MIPS: traps: remove extra Tainted: line from __show_regs() output
  MIPS: Fix wrong CHECKFLAGS (sparse builds) with GCC 5.1
  MIPS: Fix a preemption issue with thread's FPU defaults
2015-05-16 15:46:30 -07:00
Linus Torvalds
2ed3d79564 ARC fixes for 4.1-rc4
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Merge tag 'arc-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta.

* tag 'arc-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: inline cache flush toggle helpers
  ARC: With earlycon in use, retire EARLY_PRINTK
  ARC: unbork !LLSC build
2015-05-16 15:40:07 -07:00
Linus Torvalds
d661027066 ARM: SoC fixes for 4.1-rc3
Nothing frightening this time, just smaller fixes in a number of places.
 
 The other changes contained here are:
 
 MAINTAINERS file updates:
 - The mach-gemini maintainer is back in action and has a new git tree
 - Krzysztof Kozlowski has volunteered to be a new co-maintainer
   for the samsung platforms
 - updates to the files that belong to Marvell mvebu
 
 Bug fixes:
 - The largest changes are on omap2, but are only to avoid some
   harmless warnings and to fix reset on omap4
 - a small regression fix on tegra
 - multiple fixes for incorrect IRQ affinity on vexpress
 - the missing system controller on arm64 juno is added
 - one revert of a patch that was accidentally applied
   twice for mach-rockchip
 - two clock related DT fixes for mvebu
 - a workaround for suspend with old DT binaries on new
   exynos kernels
 - Another fix for suspend on exynos, needs to be backported.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Nothing frightening this time, just smaller fixes in a number of
  places.

  The other changes contained here are:

   MAINTAINERS file updates:

   - The mach-gemini maintainer is back in action and has a new git tree

   - Krzysztof Kozlowski has volunteered to be a new co-maintainer for
     the samsung platforms

   - updates to the files that belong to Marvell mvebu

  Bug fixes:

   - The largest changes are on omap2, but are only to avoid some
     harmless warnings and to fix reset on omap4

   - a small regression fix on tegra

   - multiple fixes for incorrect IRQ affinity on vexpress

   - the missing system controller on arm64 juno is added

   - one revert of a patch that was accidentally applied twice for
     mach-rockchip

   - two clock related DT fixes for mvebu

   - a workaround for suspend with old DT binaries on new exynos kernels

   - Another fix for suspend on exynos, needs to be backported"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
  MAINTAINERS: Add dts entries for some of the Marvell SoCs
  MAINTAINERS: ARM: EXYNOS: Add Krzysztof Kozlowski as co-maintainer
  ARM: EXYNOS: Use of_machine_is_compatible instead of soc_is_exynos4
  ARM: EXYNOS: Fix failed second suspend on Exynos4
  Revert "ARM: rockchip: fix undefined instruction of reset_ctrl_regs"
  ARM: EXYNOS: Fix dereference of ERR_PTR returned by of_genpd_get_from_provider
  ARM: EXYNOS: Don't try to initialize suspend on old DT
  ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for Peach Boards
  ARM: gemini: fix compiler warning due wrong data type
  ARM: vexpress/tc2: Add interrupt-affinity to the PMU node
  ARM: vexpress/ca9: Add interrupt-affinity to the PMU node
  ARM: vexpress/ca9: Add unified-cache property to l2 cache node
  ARM64: juno: add sp810 support and fix sp804 clock frequency
  ARM: Gemini: Maintainers update
  ARM: OMAP2+: Remove bogus struct clk comparison for timer clock
  ARM: dove: Add clock-names to CuBox Si5351 clk generator
  ARM: AM33xx+: hwmod: re-use omap4 implementations for reset functionality
  ARM: OMAP4+: PRM: add support for passing status register/bit info to reset
  ARM: AM43xx: hwmod: add VPFE hwmod entries
  ARM: mvebu: Fix the main PLL frequency on Armada 375, 38x and 39x SoCs
  ...
2015-05-16 15:33:25 -07:00
Linus Torvalds
7378668392 Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal fixes from Zhang Rui:
 "Specifics:

   - fix an issue in intel_powerclamp driver that idle injection target
     is not accurately maintained on newer Intel CPUs.  Package C8 to
     C10 states are introduced on these CPUs but they were not included
     in the package c-state residency calculation.  From Jacob Pan.

   - fix a problem that package c-state idle injection was missing on
     Broadwell server, by adding its id to intel_powerclamp driver.
     From Jacob Pan.

   - a couple of small fixes and cleanups from Joe Perches, Mathias
     Krause, Dan Carpenter and Anand Moon"

* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  tools/thermal: tmon: fixed the 'make install' command
  thermal: rockchip: fix an error code
  thermal/powerclamp: fix missing newer package c-states
  thermal/intel_powerclamp: add id for broadwell server
  thermal/intel_powerclamp: add __init / __exit annotations
  thermal: Use bool function return values of true/false not 1/0
2015-05-16 15:27:33 -07:00
Herbert Xu
07ee0722bf rhashtable: Add cap on number of elements in hash table
We currently have no limit on the number of elements in a hash table.
This is a problem because some users (tipc) set a ceiling on the
maximum table size and when that is reached the hash table may
degenerate.  Others may encounter OOM when growing and if we allow
insertions when that happens the hash table perofrmance may also
suffer.

This patch adds a new paramater insecure_max_entries which becomes
the cap on the table.  If unset it defaults to max_size * 2.  If
it is also zero it means that there is no cap on the number of
elements in the table.  However, the table will grow whenever the
utilisation hits 100% and if that growth fails, you will get ENOMEM
on insertion.

As allowing oversubscription is potentially dangerous, the name
contains the word insecure.

Note that the cap is not a hard limit.  This is done for performance
reasons as enforcing a hard limit will result in use of atomic ops
that are heavier than the ones we currently use.

The reasoning is that we're only guarding against a gross over-
subscription of the table, rather than a small breach of the limit.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-16 18:08:26 -04:00
Linus Torvalds
d70933beec linux-kselftest-4.1-rc4
Urgent fix for Kselftest regression introduced in 4.1-rc1
 by the new x86 test due to its hard dependency on 32-bit
 build environment. A set of 5 patches fix the make kselftest
 run and kselftest install.
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Merge tag 'linux-kselftest-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "Urgent fix for Kselftest regression introduced in 4.1-rc1 by the new
  x86 test due to its hard dependency on 32-bit build environment.

  A set of 5 patches fix the make kselftest run and kselftest install"

* tag 'linux-kselftest-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests, x86: Rework x86 target architecture detection
  selftests, x86: Remove useless run_tests rule
  selftests/x86: install tests
  selftest/x86: have no dependency on all when cross building
  selftest/x86: build both bitnesses
2015-05-16 15:03:52 -07:00
Tim Beale
db9683fb41 net: phy: Make sure PHY_RESUMING state change is always processed
If phy_start_aneg() was called while the phydev is in the PHY_RESUMING
state, then its state would immediately transition to PHY_AN (or
PHY_FORCING). This meant the phy_state_machine() never processed the
PHY_RESUMING state change, which meant interrupts weren't enabled for the
PHY. If the PHY used low-power mode (i.e. using BMCR_PDOWN), then the
physical link wouldn't get powered up again.

There seems no point for phy_start_aneg() to make the PHY_RESUMING -->
PHY_AN transition, as the state machine will do this anyway. I'm not sure
about the case where autoneg is disabled, as my patch will change
behaviour so that the PHY goes to PHY_NOLINK instead of PHY_FORCING. An
alternative solution would be to move the phy_config_interrupt() and
phy_resume() work out of the state machine and into phy_start().

The background behind this: we're running linux v3.16.7 and from user-space
we want to enable the eth port (i.e. do a SIOCSIFFLAGS ioctl with the
IFF_UP flag) and immediately afterward set the interface's speed/duplex.
Enabling the interface calls .ndo_open() then phy_start() and the PHY
transitions PHY_HALTED --> PHY_RESUMING. Setting the speed/duplex ends up
calling phy_ethtool_sset(), which calls phy_start_aneg() (meanwhile the
phy_state_machine() hasn't processed the PHY_RESUMING state change yet).

Signed-off-by: Tim Beale <tim.beale@alliedtelesis.co.nz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-16 17:15:40 -04:00
Herbert Xu
c0bb07df7d netlink: Reset portid after netlink_insert failure
The commit c5adde9468 ("netlink:
eliminate nl_sk_hash_lock") breaks the autobind retry mechanism
because it doesn't reset portid after a failed netlink_insert.

This means that should autobind fail the first time around, then
the socket will be stuck in limbo as it can never be bound again
since it already has a non-zero portid.

Fixes: c5adde9468 ("netlink: eliminate nl_sk_hash_lock")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-16 17:08:57 -04:00
Florian Fainelli
3e2186e021 net: phy: Add state machine state transitions debug prints
It can be useful to debug the PHY state machine, add dynamic debug
prints of the old and new PHY devices state under a friendly format.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-16 16:47:13 -04:00
David S. Miller
1d6057019e Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
The following patchset contains Netfilter fixes for your net tree, they are:

1) Fix a leak in IPVS, the sysctl table is not released accordingly when
   destroying a netns, patch from Tommi Rantala.

2) Fix a build error when TPROXY and socket are built-in but IPv6 defrag is
   compiled as module, from Florian Westphal.

3) Fix TCP tracket wrt. RFC5961 challenge ACK when in LAST_ACK state, patch
   from Jesper Dangaard Brouer.

4) Fix a bogus WARN_ON() in nf_tables when deleting a set element that stores
   a map, from Mirek Kratochvil.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-16 16:40:22 -04:00
Zhichang Yuan
5dbb4c6167 of/pci: Fix pci_address_to_pio() conversion of CPU address to I/O port
41f8bba7f5 ("of/pci: Add pci_register_io_range() and
pci_pio_to_address()") added support for systems with several I/O ranges
described by OF bindings.  It modified pci_address_to_pio() look up the
io_range for a given CPU physical address, but the conversion was wrong.

Fix the conversion of address to I/O port.

[bhelgaas: changelog]
Fixes: 41f8bba7f5 ("of/pci: Add pci_register_io_range() and pci_pio_to_address()")
Signed-off-by: Zhichang Yuan <yuanzhichang@hisilicon.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
CC: stable@vger.kernel.org	# v3.18+
2015-05-16 10:38:39 -05:00