Commit Graph

52393 Commits

Author SHA1 Message Date
Andrei Emeltchenko
f6d3c6e783 Bluetooth: A2MP: Build and Send msg helpers
Helper function to build and send A2MP messages.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-06-05 06:34:12 +03:00
Andrei Emeltchenko
9740e49d17 Bluetooth: A2MP: AMP Manager basic functions
Define AMP Manager and some basic functions.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-06-05 06:34:11 +03:00
Andrei Emeltchenko
466f8004f3 Bluetooth: A2MP: Create A2MP channel
Create and initialize fixed A2MP channel

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-06-05 06:34:11 +03:00
Andrei Emeltchenko
54a59aa2b5 Bluetooth: Add l2cap_chan->ops->ready()
This move socket specific code to l2cap_sock.c.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:11 +03:00
Andrei Emeltchenko
c0df7f6e06 Bluetooth: Move clean up code and set of SOCK_ZAPPED to l2cap_sock.c
This remove a bit more of socket code from l2cap core, this calls set the
SOCK_ZAPPED and do some clean up depending on the socket state.

Reported-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:10 +03:00
Gustavo Padovan
80b9802795 Bluetooth: Use chan as parameters for l2cap chan ops
Use chan instead of void * makes more sense here.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:10 +03:00
Andrei Emeltchenko
523e93cdb3 Bluetooth: Define HCI AMP cmd struct
Add HCI commands to deal with Bluetooth AMP controllers.
Those commands will be used by bluetooth and softamp code.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:09 +03:00
Andrei Emeltchenko
2983fd6824 Bluetooth: Define and use PSM identifiers
Define assigned Protocol and Service Multiplexor (PSM) identifiers
and use them instead of magic numbers.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-06-05 06:34:09 +03:00
Andrei Emeltchenko
59e54bd15d Bluetooth: Define L2CAP conf continuation flag
Define Continuation flag which the only flag used from Flags field
in L2CAP Configuration Request and Response.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:08 +03:00
Gustavo Padovan
8c520a5992 Bluetooth: Remove unnecessary headers include
Most of the include were unnecessary or already included by some other
header.
Replace module.h by export.h where possible.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:08 +03:00
Gustavo Padovan
c3c7ea6594 Bluetooth: Fix coding style in include/net/bluetooth
Fix all warning and errors reported by checkpatch but license trailing
whitespace and bdaddr_t definition.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:08 +03:00
Andrei Emeltchenko
9b3b44604a Bluetooth: Use defined link key size
Remove magic number with defined link key size.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:06 +03:00
Szymon Janc
a6c511c636 Bluetooth: Rename HCI_QUIRK_NO_RESET to HCI_QUIRK_RESET_ON_CLOSE
HCI_QUIRK_NO_RESET name is misleading - purpose of this quirk is to
reset device on close instead of init, not to not reset at all.
Rename it to HCI_QUIRK_RESET_ON_CLOSE to avoid confusion.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:06 +03:00
Gustavo Padovan
38351c66e4 Bluetooth: Fix trailing whitespaces in license text
As reported by checkpatch.pl

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:06 +03:00
Mat Martineau
522cc2ee6e Bluetooth: Remove unused ERTM control field macros
Now that l2cap_ctrl is used to set up control fields, these macros are
not needed.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-06-05 06:34:05 +03:00
Mat Martineau
4239d16f36 Bluetooth: Check rules when setting retransmit or monitor timers
The ERTM specification requires the retransmit timer to be cancelled
when the monitor timer is set.  The retransmit timer cannot be set
again while the monitor timer is pending.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-06-05 06:34:04 +03:00
Mat Martineau
f5dbb0772d Bluetooth: Remove receive code that has been superceded
This deletes the receive code that had handlers for each frame type at
the top level, and then had logic to determine the receive state
within each handler.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-06-05 06:34:03 +03:00
Mat Martineau
2827011f66 Bluetooth: Fix early return from l2cap_chan_del
This fixes a regression from commit
2ead70b839 that is present in all
kernels starting at v3.0.

When L2CAP information was moved to struct l2cap_chan, a check was
added to l2cap_chan_del to avoid certain cleanup operations when ERTM
or streaming mode had not yet been initialized.  The logic in the
check did not take in to account that chan->conf_state is set to 0 in
l2cap_chan_ready, so l2cap_chan_del failed to cancel timers and leaked
memory any time the ERTM queues or lists were not empty.

This change makes sure that l2cap_chan_del only returns early if
ERTM initialization was not performed.

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2012-06-05 06:34:02 +03:00
Inki Dae
13b87b2742 drm/exynos: fixed size type.
size type of drm_exynos_gem_mmap struct is changed to uint64_t and
it adds pad for the struct to be aligned as 64bit.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-06-05 11:51:47 +09:00
Samuel Ortiz
73167ced31 NFC: Introduce target mode rx data callback
This routine will be called by drivers whenever they receive data in target
mode. This should be unexpected events and as such should be handled by a
standalone API (i.e. not as a callback pointer from an existing API).

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:31 +02:00
Samuel Ortiz
be9ae4ce4e NFC: Introduce target mode tx ops
And rename the initiator mode data exchange ops for consistency sake.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:30 +02:00
Samuel Ortiz
f212ad5e99 NFC: Set the NFC device RF mode appropriately
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:30 +02:00
Samuel Ortiz
fc40a8c1a0 NFC: Add target mode activation netlink event
Userspace gets a netlink event upon target mode activation.
The LLCP layer is also signaled when we get an ATR_REQ in order to get
the remote general bytes.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:30 +02:00
Samuel Ortiz
fe7c580073 NFC: Add target mode protocols to the polling loop startup routine
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:29 +02:00
Samuel Ortiz
ab73b75130 NFC: Export LLCP general bytes getter
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-06-04 21:34:29 +02:00
Linus Torvalds
a3fe778c78 Merge tag 'stable/frontswap.v16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm
Pull frontswap feature from Konrad Rzeszutek Wilk:
 "Frontswap provides a "transcendent memory" interface for swap pages.
  In some environments, dramatic performance savings may be obtained
  because swapped pages are saved in RAM (or a RAM-like device) instead
  of a swap disk.  This tag provides the basic infrastructure along with
  some changes to the existing backends."

Fix up trivial conflict in mm/Makefile due to removal of swap token code
changing a line next to the new frontswap entry.

This pull request came in before the merge window even opened, it got
delayed to after the merge window by me just wanting to make sure it had
actual users.  Apparently IBM is using this on their embedded side, and
Jan Beulich says that it's already made available for SLES and OpenSUSE
users.

Also acked by Rik van Riel, and Konrad points to other people liking it
too.  So in it goes.

By Dan Magenheimer (4) and Konrad Rzeszutek Wilk (2)
via Konrad Rzeszutek Wilk
* tag 'stable/frontswap.v16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm:
  frontswap: s/put_page/store/g s/get_page/load
  MAINTAINER: Add myself for the frontswap API
  mm: frontswap: config and doc files
  mm: frontswap: core frontswap functionality
  mm: frontswap: core swap subsystem hooks and headers
  mm: frontswap: add frontswap header file
2012-06-04 12:28:45 -07:00
Linus Torvalds
c22072bdf0 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "The clocksource driver is pure hardware enablement and the skew option
  is default off, well tested and non dangerous."

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick: Move skew_tick option into the HIGH_RES_TIMER section
  clocksource: em_sti: Add DT support
  clocksource: em_sti: Emma Mobile STI driver
  clockevents: Make clockevents_config() a global symbol
  tick: Add tick skew boot option
2012-06-04 11:25:31 -07:00
Raffaele Recalcati
29a6b6c060 net/ethernet: ks8851_mll mac address configuration support added
Signed-off-by: Raffaele Recalcati <raffaele.recalcati@bticino.it>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-04 11:43:00 -04:00
Eric Dumazet
d594e987c6 sock_diag: add SK_MEMINFO_BACKLOG
Adding socket backlog len in INET_DIAG_SKMEMINFO is really useful to
diagnose various TCP problems.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-04 11:27:40 -04:00
Stephen Warren
ae58d1e406 i2c: Add generic I2C multiplexer using pinctrl API
This is useful for SoCs whose I2C module's signals can be routed to
different sets of pins at run-time, using the pinctrl API.

                                 +-----+  +-----+
                                 | dev |  | dev |
    +------------------------+   +-----+  +-----+
    | SoC                    |      |        |
    |                   /----|------+--------+
    |   +---+   +------+     | child bus A, on first set of pins
    |   |I2C|---|Pinmux|     |
    |   +---+   +------+     | child bus B, on second set of pins
    |                   \----|------+--------+--------+
    |                        |      |        |        |
    +------------------------+  +-----+  +-----+  +-----+
                                | dev |  | dev |  | dev |
                                +-----+  +-----+  +-----+

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-06-04 16:49:43 +02:00
Pekka Enberg
23910c50cc Merge branch 'slub/cleanups' into slab/next
* Fix a merge conflict in mm/slub.c::acquire_slab() due to commit 02d7633
  ("slub: fix a memory leak in get_partial_node()").

Conflicts:
	mm/slub.c

Signed-off-by: Pekka Enberg <penberg@kernel.org>
2012-06-04 10:14:58 +03:00
Toshi Kani
c4753e57b7 ACPI: Add _OST support for sysfs eject
Changed acpi_bus_hot_remove_device() to support _OST. This function is
also changed to global so that it can be called from hotplug notify
handlers to perform hot-remove operation.

Changed acpi_eject_store(), which is the sysfs eject handler. It checks
eject_pending to see if the request was originated from ACPI eject
notification. If not, it calls _OST(0x103,84,) per Figure 6-37 in ACPI
5.0 spec.

Added eject_pending bit to acpi_device_flags. This bit is set when the
kernel has received an ACPI eject notification, but does not initiate
its hot-remove operation by itself.

Added struct acpi_eject_event. This structure is used to pass extended
information to acpi_bus_hot_remove_device(), which has a single argument
to support asynchronous call

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-04 01:09:19 -04:00
Toshi Kani
275c58d770 ACPI: Add an interface to evaluate _OST
Added acpi_evaluate_hotplug_opt(). All ACPI hotplug handlers must call
this function when evaluating _OST for hotplug operations. If the
platform does not support _OST, this function returns AE_NOT_FOUND and
has no effect on the platform.

ACPI_HOTPLUG_OST is defined when all relevant ACPI hotplug operations,
such as CPU, memory and container hotplug, are enabled. This assures
consistent behavior among the hotplug operations with regarding the
_OST support. When ACPI_HOTPLUG_OST is not defined, this function is
a no-op.

ACPI PCI hotplug is not enhanced to support _OST at this time since it
is a legacy method being replaced by PCIe native hotplug. _OST support
for ACPI PCI hotplug may be added in future if necessary.

Some platforms may require the OS to support _OST in order to support
ACPI hotplug operations. For example, if a platform has the management
console where user can request a hotplug operation from, this _OST
support would be required for the management console to show the result
of the hotplug request to user.

Added macro definitions of _OST source events and status codes.
Also renamed OSC_SB_CPUHP_OST_SUPPORT to OSC_SB_HOTPLUG_OST_SUPPORT
since this _OSC bit is not specific to CPU hotplug. This bit is
defined in Table 6-147 of ACPI 5.0 as follows.

  Bits:       3
  Field Name: Insertion / Ejection _OST Processing Support
  Definition: This bit is set if OSPM will evaluate the _OST
              object defined under a device when processing
              insertion and ejection source event codes.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-04 01:09:14 -04:00
Len Brown
7ae30986dc ACPI: fix acpi_bus.h build warnings when ACPI is not enabled
introduced in Linux-3.5-rc1 by
66886d6f8c
(ACPI: Add stubs for (un)register_acpi_bus_type)

Fix header file warnings when CONFIG_ACPI is not enabled:

include/acpi/acpi_bus.h:443:42: warning: 'struct acpi_bus_type' declared inside parameter list
include/acpi/acpi_bus.h:443:42: warning: its scope is only this definition or declaration, which is probably not
include/acpi/acpi_bus.h:444:44: warning: 'struct acpi_bus_type' declared inside parameter list

Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-04 00:29:11 -04:00
Linus Torvalds
68e3e92620 Revert "mm: compaction: handle incorrect MIGRATE_UNMOVABLE type pageblocks"
This reverts commit 5ceb9ce6fe.

That commit seems to be the cause of the mm compation list corruption
issues that Dave Jones reported.  The locking (or rather, absense
there-of) is dubious, as is the use of the 'page' variable once it has
been found to be outside the pageblock range.

So revert it for now, we can re-visit this for 3.6.  If we even need to:
as Minchan Kim says, "The patch wasn't a bug fix and even test workload
was very theoretical".

Reported-and-tested-by: Dave Jones <davej@redhat.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-03 20:05:57 -07:00
Linus Torvalds
2f9d3df8aa vfs: move inode stat information closer together
The comment above it says "Stat data, not accessed from path walking",
but in fact some of inode fields we use for the common stat data was way
down at the end of the inode, causing unnecessary cache misses for the
common stat operations.

The inode structure is pretty big, and this can change padding depending
on field width, but at least on the common 64-bit configurations this
doesn't change the size.  Some of our inode layout has historically been
to tro to avoid unnecessary padding fields, but cache locality is at
least as important for layout, if not more.

Noticed by looking at kernel profiles, and noticing that the "i_blkbits"
access stood out like a sore thumb.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-03 14:50:19 -07:00
Axel Lin
cffc9592fd regulator: core: Allow drivers to set voltage mapping table in regulator_desc
Some regulator hardware use table based mapping can set volt_table in
regulator_desc and use regulator_list_voltage_table() for their list_voltage
callback.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03 13:19:45 +01:00
Mark Brown
b026ddbbd2 regmap: Constify regmap_irq_chip
We should never be modifying it and it lets drivers declare it const.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03 13:16:51 +01:00
Stephen Warren
141eba2e00 regmap: allow busses to request formatting with specific endianness
Add a field to struct regmap_bus that allows bus drivers to request that
register addresses and values be formatted with a specific endianness.

The default endianness is unchanged from current operation: Big.

Implement native endian formatting/parsing for 16- and 32-bit values.
This will be enough to support regmap-mmio.c.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03 13:11:43 +01:00
Adam Thomson
6c9d8cf637 ASoC: core: Add single controls with specified range of values
Control type added for cases where a specific range of values
within a register are required for control.

Added convenience macros:

SOC_SINGLE_RANGE
SOC_SINGLE_RANGE_TLV

Added accessor implementations:

snd_soc_info_volsw_range
snd_soc_put_volsw_range
snd_soc_get_volsw_range

Signed-off-by: Michal Hajduk <Michal.Hajduk@diasemi.com>
Signed-off-by: Adam Thomson <Adam.Thomson@diasemi.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03 13:06:41 +01:00
Stephen Warren
bc92657a11 ASoC: make snd_soc_dai_link more symmetrical
Prior to this patch, the CPU side of a DAI link was specified using a
single name. Often, this was the result of calling dev_name() on the
device providing the DAI, but in the case of a CPU DAI driver that
provided multiple DAIs, it needed to mix together both the device name
and some device-relative name, in order to form a single globally unique
name.

However, the CODEC side of the DAI link was specified using separate
fields for device (name or OF node) and device-relative DAI name.

This patch allows the CPU side of a DAI link to be specified in the same
way as the CODEC side, separating concepts of device and device-relative
DAI name.

I believe this will be important in multi-codec and/or dynamic PCM
scenarios, where a single CPU driver provides multiple DAIs, while also
booting using device tree, with accompanying desire not to hard-code the
CPU side device's name into the original .cpu_dai_name field.

Ideally, both the CPU DAI and CODEC DAI loops in soc_bind_dai_link()
would now be identical. However, two things prevent that at present:

1) The need to save rtd->codec for the CODEC side, which means we have
to search for the CODEC explicitly, and not just the CODEC side DAI.

2) Since we know the CODEC side DAI is part of a codec, and not just
a standalone DAI, it's slightly more efficient to convert .codec_name/
.codec_of_node into a codec first, and then compare each DAI's .codec
field, since this avoids strcmp() on each DAI's CODEC's name within
the loop.

However, the two loops are essentially semantically equivalent.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03 13:06:41 +01:00
Ola Lilja
d7e7eb9155 ASoC: core: Add widget SND_SOC_DAPM_CLOCK_SUPPLY
Adds a supply-widget variant for connection to the clock-framework.
This widget-type corresponds to the variant for regulators.

Signed-off-by: Ola Lilja <ola.o.lilja@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03 13:06:38 +01:00
Ola Lilja
1aad779fcc ALSA: pcm: Add debug-print helper function
Adds a function getting the stream-name as a string for
a specific stream.

Signed-off-by: Ola Lilja <ola.o.lilja@stericsson.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03 13:06:38 +01:00
Linus Torvalds
4fc3acf291 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking updates from David Miller:

 1) Make syn floods consume significantly less resources by

    a) Not pre-COW'ing routing metrics for SYN/ACKs
    b) Mirroring the device queue mapping of the SYN for the SYN/ACK
       reply.

    Both from Eric Dumazet.

 2) Fix calculation errors in Byte Queue Limiting, from Hiroaki SHIMODA.

 3) Validate the length requested when building a paged SKB for a
    socket, so we don't overrun the page vector accidently.  From Jason
    Wang.

 4) When netlabel is disabled, we abort all IP option processing when we
    see a CIPSO option.  This isn't the right thing to do, we should
    simply skip over it and continue processing the remaining options
    (if any).  Fix from Paul Moore.

 5) SRIOV fixes for the mellanox driver from Jack orgenstein and Marcel
    Apfelbaum.

 6) 8139cp enables the receiver before the ring address is properly
    programmed, which potentially lets the device crap over random
    memory.  Fix from Jason Wang.

 7) e1000/e1000e fixes for i217 RST handling, and an improper buffer
    address reference in jumbo RX frame processing from Bruce Allan and
    Sebastian Andrzej Siewior, respectively.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  fec_mpc52xx: fix timestamp filtering
  mcs7830: Implement link state detection
  e1000e: fix Rapid Start Technology support for i217
  e1000: look into the page instead of skb->data for e1000_tbi_adjust_stats()
  r8169: call netif_napi_del at errpaths and at driver unload
  tcp: reflect SYN queue_mapping into SYNACK packets
  tcp: do not create inetpeer on SYNACK message
  8139cp/8139too: terminate the eeprom access with the right opmode
  8139cp: set ring address before enabling receiver
  cipso: handle CIPSO options correctly when NetLabel is disabled
  net: sock: validate data_len before allocating skb in sock_alloc_send_pskb()
  bql: Avoid possible inconsistent calculation.
  bql: Avoid unneeded limit decrement.
  bql: Fix POSDIFF() to integer overflow aware.
  net/mlx4_core: Fix obscure mlx4_cmd_box parameter in QUERY_DEV_CAP
  net/mlx4_core: Check port out-of-range before using in mlx4_slave_cap
  net/mlx4_core: Fixes for VF / Guest startup flow
  net/mlx4_en: Fix improper use of "port" parameter in mlx4_en_event
  net/mlx4_core: Fix number of EQs used in ICM initialisation
  net/mlx4_core: Fix the slave_id out-of-range test in mlx4_eq_int
2012-06-02 16:22:51 -07:00
Linus Torvalds
f309532bf3 tty: Revert the tty locking series, it needs more work
This reverts the tty layer change to use per-tty locking, because it's
not correct yet, and fixing it will require some more deep surgery.

The main revert is d29f3ef39b ("tty_lock: Localise the lock"), but
there are several smaller commits that built upon it, they also get
reverted here. The list of reverted commits is:

  fde86d3108 - tty: add lockdep annotations
  8f6576ad47 - tty: fix ldisc lock inversion trace
  d3ca8b64b9 - pty: Fix lock inversion
  b1d679afd7 - tty: drop the pty lock during hangup
  abcefe5fc3 - tty/amiserial: Add missing argument for tty_unlock()
  fd11b42e35 - cris: fix missing tty arg in wait_event_interruptible_tty call
  d29f3ef39b - tty_lock: Localise the lock

The revert had a trivial conflict in the 68360serial.c staging driver
that got removed in the meantime.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-02 15:21:43 -07:00
Viresh Kumar
b9c7aff481 drivers/thermal/spear_thermal.c: add Device Tree probing capability
SPEAr platforms now support DT and so must convert all drivers to support
DT.  This patch adds DT probing support for SPEAr thermal sensor driver
and updates its documentation too.

Also, as SPEAr is the only user of this driver and is only available with
DT, make this an only DT driver.  So, platform_data is completely removed
and passed via DT now.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@st.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-02 01:49:38 -04:00
Colin Cross
20ff51a36b cpuidle: coupled: add parallel barrier function
Adds cpuidle_coupled_parallel_barrier, which can be used by coupled
cpuidle state enter functions to handle resynchronization after
determining if any cpu needs to abort.  The normal use case will
be:

static bool abort_flag;
static atomic_t abort_barrier;

int arch_cpuidle_enter(struct cpuidle_device *dev, ...)
{
	if (arch_turn_off_irq_controller()) {
	   	/* returns an error if an irq is pending and would be lost
		   if idle continued and turned off power */
		abort_flag = true;
	}

	cpuidle_coupled_parallel_barrier(dev, &abort_barrier);

	if (abort_flag) {
	   	/* One of the cpus didn't turn off it's irq controller */
	   	arch_turn_on_irq_controller();
		return -EINTR;
	}

	/* continue with idle */
	...
}

This will cause all cpus to abort idle together if one of them needs
to abort.

Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-02 00:49:36 -04:00
Colin Cross
4126c0197b cpuidle: add support for states that affect multiple cpus
On some ARM SMP SoCs (OMAP4460, Tegra 2, and probably more), the
cpus cannot be independently powered down, either due to
sequencing restrictions (on Tegra 2, cpu 0 must be the last to
power down), or due to HW bugs (on OMAP4460, a cpu powering up
will corrupt the gic state unless the other cpu runs a work
around).  Each cpu has a power state that it can enter without
coordinating with the other cpu (usually Wait For Interrupt, or
WFI), and one or more "coupled" power states that affect blocks
shared between the cpus (L2 cache, interrupt controller, and
sometimes the whole SoC).  Entering a coupled power state must
be tightly controlled on both cpus.

The easiest solution to implementing coupled cpu power states is
to hotplug all but one cpu whenever possible, usually using a
cpufreq governor that looks at cpu load to determine when to
enable the secondary cpus.  This causes problems, as hotplug is an
expensive operation, so the number of hotplug transitions must be
minimized, leading to very slow response to loads, often on the
order of seconds.

This file implements an alternative solution, where each cpu will
wait in the WFI state until all cpus are ready to enter a coupled
state, at which point the coupled state function will be called
on all cpus at approximately the same time.

Once all cpus are ready to enter idle, they are woken by an smp
cross call.  At this point, there is a chance that one of the
cpus will find work to do, and choose not to enter idle.  A
final pass is needed to guarantee that all cpus will call the
power state enter function at the same time.  During this pass,
each cpu will increment the ready counter, and continue once the
ready counter matches the number of online coupled cpus.  If any
cpu exits idle, the other cpus will decrement their counter and
retry.

To use coupled cpuidle states, a cpuidle driver must:

   Set struct cpuidle_device.coupled_cpus to the mask of all
   coupled cpus, usually the same as cpu_possible_mask if all cpus
   are part of the same cluster.  The coupled_cpus mask must be
   set in the struct cpuidle_device for each cpu.

   Set struct cpuidle_device.safe_state to a state that is not a
   coupled state.  This is usually WFI.

   Set CPUIDLE_FLAG_COUPLED in struct cpuidle_state.flags for each
   state that affects multiple cpus.

   Provide a struct cpuidle_state.enter function for each state
   that affects multiple cpus.  This function is guaranteed to be
   called on all cpus at approximately the same time.  The driver
   should ensure that the cpus all abort together if any cpu tries
   to abort once the function is called.

update1:

cpuidle: coupled: fix count of online cpus

online_count was never incremented on boot, and was also counting
cpus that were not part of the coupled set.  Fix both issues by
introducting a new function that counts online coupled cpus, and
call it from register as well as the hotplug notifier.

update2:

cpuidle: coupled: fix decrementing ready count

cpuidle_coupled_set_not_ready sometimes refuses to decrement the
ready count in order to prevent a race condition.  This makes it
unsuitable for use when finished with idle.  Add a new function
cpuidle_coupled_set_done that decrements both the ready count and
waiting count, and call it after idle is complete.

Cc: Amit Kucheria <amit.kucheria@linaro.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Trinabh Gupta <g.trinabh@gmail.com>
Cc: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-02 00:49:09 -04:00
Linus Torvalds
804ce9866d Merge tag 'fbdev-updates-for-3.5' of git://github.com/schandinat/linux-2.6
Pull fbdev updates from Florian Tobias Schandinat:
 - driver for AUO-K1900 and AUO-K1901 epaper controller
 - large updates for OMAP (e.g. decouple HDMI audio and video)
 - some updates for Exynos and SH Mobile
 - various other small fixes and cleanups

* tag 'fbdev-updates-for-3.5' of git://github.com/schandinat/linux-2.6: (130 commits)
  video: bfin_adv7393fb: Fix cleanup code
  video: exynos_dp: reduce delay time when configuring video setting
  video: exynos_dp: move sw reset prioir to enabling sw defined function
  video: exynos_dp: use devm_ functions
  fb: handle NULL pointers in framebuffer release
  OMAPDSS: HDMI: OMAP4: Update IRQ flags for the HPD IRQ request
  OMAPDSS: Apply VENC timings even if panel is disabled
  OMAPDSS: VENC/DISPC: Delay dividing Y resolution for managers connected to VENC
  OMAPDSS: DISPC: Support rotation through TILER
  OMAPDSS: VRFB: remove compiler warnings when CONFIG_BUG=n
  OMAPFB: remove compiler warnings when CONFIG_BUG=n
  OMAPDSS: remove compiler warnings when CONFIG_BUG=n
  OMAPDSS: DISPC: fix usage of dispc_ovl_set_accu_uv
  OMAPDSS: use DSI_FIFO_BUG workaround only for manual update displays
  OMAPDSS: DSI: Support command mode interleaving during video mode blanking periods
  OMAPDSS: DISPC: Update Accumulator configuration for chroma plane
  drivers/video: fsl-diu-fb: don't initialize the THRESHOLDS registers
  video: exynos mipi dsi: support reverse panel type
  video: exynos mipi dsi: Properly interpret the interrupt source flags
  video: exynos mipi dsi: Avoid races in probe()
  ...
2012-06-01 16:57:51 -07:00
Linus Torvalds
f5e7e844a5 Merge tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd
Pull mtd update from David Woodhouse:
 - More robust parsing especially of xattr data in JFFS2
 - Updates to mxc_nand and gpmi drivers to support new boards and device tree
 - Improve consistency of information about ECC strength in NAND devices
 - Clean up partition handling of plat_nand
 - Support NAND drivers without dedicated access to OOB area
 - BCH hardware ECC support for OMAP
 - Other fixes and cleanups, and a few new device IDs

Fixed trivial conflict in drivers/mtd/nand/gpmi-nand/gpmi-nand.c due to
added include files next to each other.

* tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd: (75 commits)
  mtd: mxc_nand: move ecc strengh setup before nand_scan_tail
  mtd: block2mtd: fix recursive call of mtd_writev
  mtd: gpmi-nand: define ecc.strength
  mtd: of_parts: fix breakage in Kconfig
  mtd: nand: fix scan_read_raw_oob
  mtd: docg3 fix in-middle of blocks reads
  mtd: cfi_cmdset_0002: Slight cleanup of fixup messages
  mtd: add fixup for S29NS512P NOR flash.
  jffs2: allow to complete xattr integrity check on first GC scan
  jffs2: allow to discriminate between recoverable and non-recoverable errors
  mtd: nand: omap: add support for hardware BCH ecc
  ARM: OMAP3: gpmc: add BCH ecc api and modes
  mtd: nand: check the return code of 'read_oob/read_oob_raw'
  mtd: nand: remove 'sndcmd' parameter of 'read_oob/read_oob_raw'
  mtd: m25p80: Add support for Winbond W25Q80BW
  jffs2: get rid of jffs2_sync_super
  jffs2: remove unnecessary GC pass on sync
  jffs2: remove unnecessary GC pass on umount
  jffs2: remove lock_super
  mtd: gpmi: add gpmi support for mx6q
  ...
2012-06-01 16:55:42 -07:00