Commit Graph

59951 Commits

Author SHA1 Message Date
Linus Torvalds
1e0695cbc8 Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC fixes from Borislav Petkov:
 "A fix from Mauro to correct csrow size accounting in sysfs and a
  sparse fix from Stephen Hemminger."

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC: Merge mci.mem_is_per_rank with mci.csbased
  amd64_edac: Correct DIMM sizes
  EDAC: Make sysfs functions static
2013-03-22 12:44:22 -07:00
David S. Miller
ea3d1cc285 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull to get the thermal netlink multicast group name fix, otherwise
the assertion added in net-next to netlink to detect that kind of bug
makes systems unbootable for some folks.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 12:53:09 -04:00
Aaron Lu
eed222aca8 mmc: sdio: bind acpi with sdio function device
ACPI spec 5 defined the _ADR encoding for sdio bus as:
High word - slot number (0 based)
Low word  - function number

This patch adds support for binding sdio function device with acpi node,
and if successful, involve acpi into its power management.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-03-22 12:26:54 -04:00
Bernie Thompson
51e7e8b632 mmc: core: Add in support to expose PRV for v4 MMCs
The JEDEC MMC v4 spec defines a new PRV value in place of the original
fwrev and hwrev specified in v1. We can expose this in the kernel to enable
user space to more easily determine the product revision of a given MMC.

Signed-off-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-03-22 12:10:42 -04:00
Jens Axboe
7fbaee72ff Merge branch 'stable/for-jens-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus
Konrad writes:

[the branch] has a bunch of fixes. They vary from being able to deal
with unknown requests, overflow in statistics, compile warnings, bug in
the error path, removal of unnecessary logic. There is also one
performance fix - which is to allocate pages for requests when the
driver loads - instead of doing it per request
2013-03-22 08:56:32 -06:00
Thomas Graf
661d2967b3 rtnetlink: Remove passing of attributes into rtnl_doit functions
With decnet converted, we can finally get rid of rta_buf and its
computations around it. It also gets rid of the minimal header
length verification since all message handlers do that explicitly
anyway.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 10:31:16 -04:00
Thomas Graf
58d7d8f9b2 decnet: Parse netlink attributes on our own
decnet is the only subsystem left that is relying on the global
netlink attribute buffer rta_buf. It's horrible design and we
want to get rid of it.

This converts all of decnet to do implicit attribute parsing. It
also gets rid of the error prone struct dn_kern_rta.

Yes, the fib_magic() stuff is not pretty.

It's compiled tested but I need someone with appropriate hardware
to test the patch since I don't have access to it.

Cc: linux-decnet-user@lists.sourceforge.net
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 10:31:16 -04:00
Florian Fainelli
c3a07134e6 mv643xx_eth: convert to use the Marvell Orion MDIO driver
This patch converts the Marvell MV643XX ethernet driver to use the
Marvell Orion MDIO driver. As a result, PowerPC and ARM platforms
registering the Marvell MV643XX ethernet driver are also updated to
register a Marvell Orion MDIO driver. This driver voluntarily overlaps
with the Marvell Ethernet shared registers because it will use a subset
of this shared register (shared_base + 0x4 to shared_base + 0x84). The
Ethernet driver is also updated to look up for a PHY device using the
Orion MDIO bus driver.

For ARM and PowerPC we register a single instance of the "mvmdio" driver
in the system like it used to be done with the use of the "shared_smi"
platform_data cookie on ARM.

Note that it is safe to register the mvmdio driver only for the "ge00"
instance of the driver because this "ge00" interface is guaranteed to
always be explicitely registered by consumers of
arch/arm/plat-orion/common.c and other instances (ge01, ge10 and ge11)
were all pointing their shared_smi to ge00. For PowerPC the in-tree
Device Tree Source files mention only one MV643XX ethernet MAC instance
so the MDIO bus driver is registered only when id == 0.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 10:25:15 -04:00
Rusty Russell
9d0ca6ed6f virtio: remove obsolete virtqueue_get_queue_index()
You can access it directly now, since 3.8: v3.7-rc1-13-g06ca287
'virtio: move queue_index and num_free fields into core struct
virtqueue.'

Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22 10:23:34 -04:00
Jan Beulich
909b3fdb0d xen-pciback: notify hypervisor about devices intended to be assigned to guests
For MSI-X capable devices the hypervisor wants to write protect the
MSI-X table and PBA, yet it can't assume that resources have been
assigned to their final values at device enumeration time. Thus have
pciback do that notification, as having the device controlled by it is
a prerequisite to assigning the device to guests anyway.

This is the kernel part of hypervisor side commit 4245d33 ("x86/MSI:
add mechanism to fully protect MSI-X table from PV guest accesses") on
the master branch of git://xenbits.xen.org/xen.git.

CC: stable@vger.kernel.org
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-03-22 10:20:55 -04:00
Janusz Dziedzic
67baf66339 mac80211: add P2P NoA settings
Add P2P NoA settings for STA mode.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
[fix docs]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-22 14:13:42 +01:00
Marcelo Tosatti
09a6e1f4ad Revert "KVM: allow host header to be included even for !CONFIG_KVM"
This reverts commit f445f11eb2 as
it breaks PPC with CONFIG_KVM=n.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-22 08:08:06 -03:00
Bengt Jonsson
732805a563 regulator: ab8500: Separate regulator and MFD platform data
The ab8500 MFD should not have knowledge about regulator-
specific platform data like number of regulators and
regulator registers. As the regulator platform data is
about to grow with external regulators, this information
is moved to a new structure provided by the regulator
driver.

Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Yvan FILLION <yvan.fillion@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-22 12:03:17 +01:00
Lee Jones
33bc8f46a8 regulator: ab8500: Another push to synchronise recent AB8500 developments
This patch ensures that many of the recent developments pertaining to
the AB8500 regulator device are propagated out into the public arena.
It aims to update some of the existing initialisation values in
accordance with internal ST-Ericsson code submissions. This single
patch was originally a collection of updates which have been squashed
together to aid with clarity.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-22 12:03:17 +01:00
Lee Jones
3c1b8438d4 ARM: ux500: regulators: Add mask for configuration
There is already before a register mask in the regulator driver
to allow some bits of a register to be initialized. The register
value is defined in the board configuration. This patch puts a
mask in the board configuration to specify which bits should
actually be altered. The purpose with this patch is to avoid
future mistakes when updating the allowed bits in the regulator
driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-22 12:03:16 +01:00
Lee Jones
d79df329d0 regulator: ab8500: Further populate initialisation registers
This patch supplies access to some extra settings provided by the
AB8500 regulator device. We also update some of the existing
initialisation values in accordance with internal ST-Ericsson code
submissions. This single patch was originally a collection of updates
which have been squashed together to aid with clarity.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-22 12:03:16 +01:00
Janusz Dziedzic
19dde0bd71 cfg80211: add P2P Notice of Absence attribute
Add P2P Notice of Absence attribute structure.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-22 11:33:12 +01:00
Thomas Gleixner
19919226c3 clockevents: Add missing tick_check_broadcast_expired() for CLOCKEVENTS=n
Fengs build robot reports:

arch/arm/kernel/process.c: In function 'cpu_idle':
arch/arm/kernel/process.c:211:4: error: implicit declaration of function
'tick_check_broadcast_expired' [-Werror=implicit-function-declaration]

Add the missing inline function for non clockevent builds

Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-03-22 10:48:33 +01:00
Greg Kroah-Hartman
23a376f98c Merge 3.9-rc3 into tty-next 2013-03-21 16:07:34 -07:00
Johan Hovold
e5b33dc9d1 USB: serial: add modem-status-change wait queue
Add modem-status-change wait queue to struct usb_serial_port that
subdrivers can use to implement TIOCMIWAIT.

Currently subdrivers use a private wait queue which may have been
released when waking up after device disconnected.

Note that we're adding a new wait queue rather than reusing the tty-port
one as we do not want to get woken up at hangup (yet).

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-21 15:59:02 -07:00
Rafael J. Wysocki
f58b082aed ACPI / scan: Add special handler for Intel Lynxpoint LPSS devices
Devices on the Intel Lynxpoint Low Power Subsystem (LPSS) have some
common features that aren't shared with any other platform devices,
including the clock and LTR (Latency Tolerance Reporting) registers.
It is better to handle those features in common code than to bother
device drivers with doing that (I/O functionality-wise the LPSS
devices are generally compatible with other devices that don't
have those special registers and may be handled by the same drivers).

The clock registers of the LPSS devices are now taken care of by
the special clk-x86-lpss driver, but the MMIO mappings used for
accessing those registers can also be used for accessing the LTR
registers on those devices (LTR support for the Lynxpoint LPSS is
going to be added by a subsequent patch).  Thus it is convenient
to add a special ACPI scan handler for the Lynxpoint LPSS devices
that will create the MMIO mappings for accessing the clock (and
LTR in the future) registers and will register the LPSS devices'
clocks, so the clk-x86-lpss driver will only need to take care of
the main Lynxpoint LPSS clock.

Introduce a special ACPI scan handler for Intel Lynxpoint LPSS
devices as described above.  This also reduces overhead related to
browsing the ACPI namespace in search of the LPSS devices before the
registration of their clocks, removes some LPSS-specific (and
somewhat ugly) code from acpi_platform.c and shrinks the overall code
size slightly.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
2013-03-21 22:44:38 +01:00
Daniel Borkmann
79617801ea filter: bpf_jit_comp: refactor and unify BPF JIT image dump output
If bpf_jit_enable > 1, then we dump the emitted JIT compiled image
after creation. Currently, only SPARC and PowerPC has similar output
as in the reference implementation on x86_64. Make a small helper
function in order to reduce duplicated code and make the dump output
uniform across architectures x86_64, SPARC, PPC, ARM (e.g. on ARM
flen, pass and proglen are currently not shown, but would be
interesting to know as well), also for future BPF JIT implementations
on other archs.

Cc: Mircea Gherzan <mgherzan@gmail.com>
Cc: Matt Evans <matt@ozlabs.org>
Cc: Eric Dumazet <eric.dumazet@google.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 17:25:56 -04:00
Mark Brown
4f1b075816 mfd: wm5102: Add additional speaker control registers
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-21 18:54:17 +01:00
Manjunath Hadli
e64171b97b [media] media: add support for decoder as one of media entity types
A lot of SOCs including Texas Instruments Davinci family mainly use
video decoders as input devices. This patch adds a flag
'MEDIA_ENT_T_V4L2_SUBDEV_DECODER' media entity type for decoder's.
Along side updates the documentation for this media entity type.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 14:05:31 -03:00
Lad, Prabhakar
88da0183eb [media] media: ths7353: add support for ths7353 video amplifier
The patch adds support for THS7353 video amplifier.
The the THS7353 amplifier is very much similar to the
existing THS7303 video amplifier driver.
This patch appropriately makes changes to the existing
ths7303 driver and adds support for the THS7353.
This patch also adds V4L2_IDENT_THS7353 for the THS7353
chip and appropriate changes to Kconfig file for building.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 14:04:47 -03:00
Arnd Bergmann
c16c4c4b12 Merge tag 'renesas-intc-external-irq-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers
From Simon Horman <horms+renesas@verge.net.au>:

Renesas INTC External IRQ pin driver

This provides two new INTC drivers for use with Renesas ARM-based SoCs and
makes use of them on the r8a7779 and sh73a0 SoCs.

It has been agreed by the relevant parties, Thomas Gleixner, Magnus Damm,
and myself that it would be best to merge this code through the renesas
tree and thus through the arm-soc tree.

This is based on:

git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git renesas-soc-v3.10

* tag 'renesas-intc-external-irq-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  irqchip: irqc: Add DT support
  irqchip: intc-irqpin: Initial DT support
  ARM: shmobile: Make r8a7779 INTC irqpin platform data static
  ARM: shmobile: Make sh73a0 INTC irqpin platform data static
  irqchip: Renesas IRQC driver
  irqchip: intc-irqpin: GPL header for platform data
  irqchip: intc-irqpin: Make use of devm functions
  irqchip: intc-irqpin: Add force comments
  irqchip: intc-irqpin: Cache mapped IRQ
  irqchip: intc-irqpin: Whitespace fixes
  ARM: shmobile: INTC External IRQ pin driver on r8a7779
  ARM: shmobile: INTC External IRQ pin driver on sh73a0
  ARM: shmobile: irq_pin() for static IRQ pin assignment
  irqchip: Renesas INTC External IRQ pin driver

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-21 18:02:40 +01:00
Andrey Vagin
eaaa313926 netlink: Diag core and basic socket info dumping (v2)
The netlink_diag can be built as a module, just like it's done in
unix sockets.

The core dumping message carries the basic info about netlink sockets:
family, type and protocol, portis, dst_group, dst_portid, state.

Groups can be received as an optional parameter NETLINK_DIAG_GROUPS.

Netlink sockets cab be filtered by protocols.

The socket inode number and cookie is reserved for future per-socket info
retrieving. The per-protocol filtering is also reserved for future by
requiring the sdiag_protocol to be zero.

The file /proc/net/netlink doesn't provide enough information for
dumping netlink sockets. It doesn't provide dst_group, dst_portid,
groups above 32.

v2: fix NETLINK_DIAG_MAX. Now it's equal to the last constant.

Acked-by: Pavel Emelyanov <xemul@parallels.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Gao feng <gaofeng@cn.fujitsu.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 12:38:03 -04:00
Andrey Vagin
ae5fc98728 net: fix *_DIAG_MAX constants
Follow the common pattern and define *_DIAG_MAX like:

        [...]
        __XXX_DIAG_MAX,
};

Because everyone is used to do:

        struct nlattr *attrs[XXX_DIAG_MAX+1];

        nla_parse([...], XXX_DIAG_MAX, [...]

Reported-by: Thomas Graf <tgraf@suug.ch>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 12:36:33 -04:00
Mark Brown
3cf956eebe ASoC: wm8994: Support constraining the maximum number of channels clocked
Some systems use the audio CODEC to clock a DAI with multiple data lines
in parallel, meaning that bit clocks are only required for a smaller number
of channels than data is sent for. In some cases providing the extra bit
clocks can take the other devices on the audio bus out of spec.

Support such systems by allowing a maximum number of channels to be
specified.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-21 17:27:32 +01:00
Hans Verkuil
b6ba2057f7 [media] videobuf2: add gfp_flags
Some drivers have special memory requirements for their buffers, usually
related to DMA (e.g. GFP_DMA or __GFP_DMA32). Make it possible to specify
additional GFP flags for those buffers by adding a gfp_flags field to
vb2_queue.
Note that this field will be replaced in the future with a different
mechanism, but that is still work in progress and we need this feature
now so we won't be able to convert drivers with such requirements to vb2.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-21 13:17:51 -03:00
Yuchung Cheng
e33099f96d tcp: implement RFC5682 F-RTO
This patch implements F-RTO (foward RTO recovery):

When the first retransmission after timeout is acknowledged, F-RTO
sends new data instead of old data. If the next ACK acknowledges
some never-retransmitted data, then the timeout was spurious and the
congestion state is reverted.  Otherwise if the next ACK selectively
acknowledges the new data, then the timeout was genuine and the
loss recovery continues. This idea applies to recurring timeouts
as well. While F-RTO sends different data during timeout recovery,
it does not (and should not) change the congestion control.

The implementaion follows the three steps of SACK enhanced algorithm
(section 3) in RFC5682. Step 1 is in tcp_enter_loss(). Step 2 and
3 are in tcp_process_loss().  The basic version is not supported
because SACK enhanced version also works for non-SACK connections.

The new implementation is functionally in parity with the old F-RTO
implementation except the one case where it increases undo events:
In addition to the RFC algorithm, a spurious timeout may be detected
without sending data in step 2, as long as the SACK confirms not
all the original data are dropped. When this happens, the sender
will undo the cwnd and perhaps enter fast recovery instead. This
additional check increases the F-RTO undo events by 5x compared
to the prior implementation on Google Web servers, since the sender
often does not have new data to send for HTTP.

Note F-RTO may detect spurious timeout before Eifel with timestamps
does so.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 11:47:51 -04:00
Yuchung Cheng
9b44190dc1 tcp: refactor F-RTO
The patch series refactor the F-RTO feature (RFC4138/5682).

This is to simplify the loss recovery processing. Existing F-RTO
was developed during the experimental stage (RFC4138) and has
many experimental features.  It takes a separate code path from
the traditional timeout processing by overloading CA_Disorder
instead of using CA_Loss state. This complicates CA_Disorder state
handling because it's also used for handling dubious ACKs and undos.
While the algorithm in the RFC does not change the congestion control,
the implementation intercepts congestion control in various places
(e.g., frto_cwnd in tcp_ack()).

The new code implements newer F-RTO RFC5682 using CA_Loss processing
path.  F-RTO becomes a small extension in the timeout processing
and interfaces with congestion control and Eifel undo modules.
It lets congestion control (module) determines how many to send
independently.  F-RTO only chooses what to send in order to detect
spurious retranmission. If timeout is found spurious it invokes
existing Eifel undo algorithms like DSACK or TCP timestamp based
detection.

The first patch removes all F-RTO code except the sysctl_tcp_frto is
left for the new implementation.  Since CA_EVENT_FRTO is removed, TCP
westwood now computes ssthresh on regular timeout CA_EVENT_LOSS event.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-21 11:47:50 -04:00
Greg Kroah-Hartman
d93acbcacd Merge tag 'fixes-for-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:

	usb: fixes for v3.9-rc4

	udc-core learned that it shouldn't use invalid pointers
	when unloading a gadget driver.

	net2272 and net2280 got a fix for a regression caused by
	the udc_start/udc_stop conversion.

	We're defining a static inline no-op for otg_ulpi_create()
	to prevent build errors when that driver isn't enabled.

	FunctionFS got a fix for an off-by-one error when binding
	and unbinding instances of FunctionFS.

	MUSB learned that it shouldn't try to unmap buffers which
	weren't previously mapped.

	f_rndis got a fix for a possible NULL pointer dereference
	in a debugging message code.

	MUSB's DA8xx glue layer got a build fix due to a typo.
2013-03-21 08:40:22 -07:00
Linus Torvalds
cd82346934 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "A fair chunk of the linecount comes from a fix for a tracing bug that
  corrupts latency tracing buffers when the overwrite mode is changed on
  the fly - the rest is mostly assorted fewliner fixlets."

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Add SNB/SNB-EP scheduling constraints for cycle_activity event
  kprobes/x86: Check Interrupt Flag modifier when registering probe
  kprobes: Make hash_64() as always inlined
  perf: Generate EXIT event only once per task context
  perf: Reset hwc->last_period on sw clock events
  tracing: Prevent buffer overwrite disabled for latency tracers
  tracing: Keep overwrite in sync between regular and snapshot buffers
  tracing: Protect tracer flags with trace_types_lock
  perf tools: Fix LIBNUMA build with glibc 2.12 and older.
  tracing: Fix free of probe entry by calling call_rcu_sched()
  perf/POWER7: Create a sysfs format entry for Power7 events
  perf probe: Fix segfault
  libtraceevent: Remove hard coded include to /usr/local/include in Makefile
  perf record: Fix -C option
  perf tools: check if -DFORTIFY_SOURCE=2 is allowed
  perf report: Fix build with NO_NEWT=1
  perf annotate: Fix build with NO_NEWT=1
  tracing: Fix race in snapshot swapping
2013-03-21 08:29:11 -07:00
Linus Torvalds
172a271b5e Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Radeon, intel and nouveau, along with one mgag200 fix

   - intel fix for an ioctl overflow, along with a regression fix for
     some phantom irqs on Ironlake.
   - nouveau has a lockdep warning and a bunch of thermal fixes
   - radeon has new pci ids and some minor fixes."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (26 commits)
  drm/mgag200: Bug fix: Modified pll algorithm for EH project
  drm/i915: stop using GMBUS IRQs on Gen4 chips
  drm/nv50/kms: prevent lockdep false-positive in page flipping path
  drm/nouveau/core: fix return value of nouveau_object_del()
  MAINTAINERS: intel-gfx is no longer subscribers-only
  drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n()
  drm/nouveau/hwmon: do not expose a buggy temperature if it is unavailable
  drm/nouveau/therm: display the availability of the internal sensor
  drm/nouveau/therm: disable temperature management if the sensor isn't readable
  drm/nouveau/therm: disable auto fan management if temperature is not available
  drm/nv40/therm: reserve negative temperatures for errors
  drm/nv40/therm: disable temperature reading if the bios misses some parameters
  drm/nouveau/therm-ic: the temperature is off by sensor_constant, warn the user
  drm/nouveau/therm: remove some confusion introduced by therm_mode
  drm/nouveau/therm: do not make assumptions on temperature
  drm/nv40/therm: increase the sensor's settling delay to 20ms
  drm/nv40/therm: improve selection between the old and the new style
  Revert "drm/i915: try to train DP even harder"
  drm/radeon: add Richland pci ids
  drm/radeon: add support for Richland APUs
  ...
2013-03-21 08:27:58 -07:00
Catalin Marinas
65deb78285 arm: vexpress: Decouple vexpress-poweroff implementation from machine_desc
This patch adds the pm_power_off and arm_pm_restart variable settings to
the vexpress-poweroff.c driver to decouple it from the machine_desc
definition.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
2013-03-21 15:17:40 +00:00
Frederic Weisbecker
1c20091e77 nohz: Wake up full dynticks CPUs when a timer gets enqueued
Wake up a CPU when a timer list timer is enqueued there and
the target is part of the full dynticks range. Sending an IPI
to it makes it reconsidering the next timer to program on top
of recent updates.

This may later be improved by checking if the tick is really
stopped on the target. This would need some careful
synchronization though. So deal with such optimization later
and start simple.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Gilad Ben Yossef <gilad@benyossef.com>
Cc: Hakan Akkan <hakanakkan@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
2013-03-21 15:55:59 +01:00
Frederic Weisbecker
a831881be2 nohz: Basic full dynticks interface
For extreme usecases such as Real Time or HPC, having
the ability to shutdown the tick when a single task runs
on a CPU is a desired feature:

* Reducing the amount of interrupts improves throughput
for CPU-bound tasks. The CPU is less distracted from its
real job, from an execution time and from the cache point
of views.

* This also improve latency response as we have less critical
sections.

Start with introducing a very simple interface to define
full dynticks CPU: use a boot time option defined cpumask
through the "nohz_extended=" kernel parameter. CPUs that
are part of this range will have their tick shutdown
whenever possible: provided they run a single task and
they don't do kernel activity that require the periodic
tick. These details will be later documented in
Documentation/*

An online CPU must be kept outside this range to handle the
timekeeping.

Suggested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Gilad Ben Yossef <gilad@benyossef.com>
Cc: Hakan Akkan <hakanakkan@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
2013-03-21 15:38:33 +01:00
Marcelo Tosatti
2ae33b3896 Merge remote-tracking branch 'upstream/master' into queue
Merge reason:

From: Alexander Graf <agraf@suse.de>

"Just recently this really important patch got pulled into Linus' tree for 3.9:

commit 1674400aae
Author: Anton Blanchard <anton <at> samba.org>
Date:   Tue Mar 12 01:51:51 2013 +0000

Without that commit, I can not boot my G5, thus I can't run automated tests on it against my queue.

Could you please merge kvm/next against linus/master, so that I can base my trees against that?"

* upstream/master: (653 commits)
  PCI: Use ROM images from firmware only if no other ROM source available
  sparc: remove unused "config BITS"
  sparc: delete "if !ULTRA_HAS_POPULATION_COUNT"
  KVM: Fix bounds checking in ioapic indirect register reads (CVE-2013-1798)
  KVM: x86: Convert MSR_KVM_SYSTEM_TIME to use gfn_to_hva_cache functions (CVE-2013-1797)
  KVM: x86: fix for buffer overflow in handling of MSR_KVM_SYSTEM_TIME (CVE-2013-1796)
  arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS
  arm64: Do not select GENERIC_HARDIRQS_NO_DEPRECATED
  inet: limit length of fragment queue hash table bucket lists
  qeth: Fix scatter-gather regression
  qeth: Fix invalid router settings handling
  qeth: delay feature trace
  sgy-cts1000: Remove __dev* attributes
  KVM: x86: fix deadlock in clock-in-progress request handling
  KVM: allow host header to be included even for !CONFIG_KVM
  hwmon: (lm75) Fix tcn75 prefix
  hwmon: (lm75.h) Update header inclusion
  MAINTAINERS: Remove Mark M. Hoffman
  xfs: ensure we capture IO errors correctly
  xfs: fix xfs_iomap_eof_prealloc_initial_size type
  ...

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-21 11:11:52 -03:00
Tomi Valkeinen
6cd2c7db41 videomode: videomode_from_timing work
We currently have videomode_from_timing(), which takes one
display_timing entry from display_timings.

To make it easier to use display_timing without display_timings, this
patch renames videomode_from_timing() to videomode_from_timings(), and
adds a new videomode_from_timing() which just converts a given
display_timing to videomode.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
2013-03-21 14:34:33 +02:00
Ingo Molnar
3bf2391729 Merge branch 'perf/urgent' into perf/core
Merge in all pending fixes, before pulling the latest development
bits from Arnaldo - which will involve merge conflicts.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-21 11:03:10 +01:00
Greg Kroah-Hartman
cf2d9500a5 Merge branch 'usb-linus' into usb-next
This is to pick up the fixes in that branch, and let Alan fix the merge
error in drivers/usb/host/ehci-timer.c better than I just did (as I know
I messed it up...)

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-20 16:21:47 -07:00
Masatake YAMATO
73214f5d9f thermal: shorten too long mcast group name
The original name is too long.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 17:56:58 -04:00
John W. Linville
5470b462c3 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-03-20 15:24:57 -04:00
Jesper Derehag
2b5faa4c55 connector: Added coredumping event to the process connector
Process connector can now also detect coredumping events.

Main aim of patch is get notified at start of coredumping, instead of
having to wait for it to finish and then being notified through EXIT
event.

Could be used for instance by process-managers that want to get
notified as soon as possible about process failures, and not
necessarily beeing notified after coredump, which could be in the
order of minutes depending on size of coredump, piping and so on.

Signed-off-by: Jesper Derehag <jderehag@hotmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 13:23:21 -04:00
Daniel Borkmann
3e5289d5e3 filter: add ANC_PAY_OFFSET instruction for loading payload start offset
It is very useful to do dynamic truncation of packets. In particular,
we're interested to push the necessary header bytes to the user space and
cut off user payload that should probably not be transferred for some reasons
(e.g. privacy, speed, or others). With the ancillary extension PAY_OFFSET,
we can load it into the accumulator, and return it. E.g. in bpfc syntax ...

        ld #poff        ; { 0x20, 0, 0, 0xfffff034 },
        ret a           ; { 0x16, 0, 0, 0x00000000 },

... as a filter will accomplish this without having to do a big hackery in
a BPF filter itself. Follow-up JIT implementations are welcome.

Thanks to Eric Dumazet for suggesting and discussing this during the
Netfilter Workshop in Copenhagen.

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 13:15:45 -04:00
Daniel Borkmann
f77668dc25 net: flow_dissector: add __skb_get_poff to get a start offset to payload
__skb_get_poff() returns the offset to the payload as far as it could
be dissected. The main user is currently BPF, so that we can dynamically
truncate packets without needing to push actual payload to the user
space and instead can analyze headers only.

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 13:15:45 -04:00
David S. Miller
61816596d1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull in the 'net' tree to get Daniel Borkmann's flow dissector
infrastructure change.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 12:46:26 -04:00
Daniel Borkmann
8ed781668d flow_keys: include thoff into flow_keys for later usage
In skb_flow_dissect(), we perform a dissection of a skbuff. Since we're
doing the work here anyway, also store thoff for a later usage, e.g. in
the BPF filter.

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 12:14:36 -04:00
Tom Parkin
44046a593e udp: add encap_destroy callback
Users of udp encapsulation currently have an encap_rcv callback which they can
use to hook into the udp receive path.

In situations where a encapsulation user allocates resources associated with a
udp encap socket, it may be convenient to be able to also hook the proto
.destroy operation.  For example, if an encap user holds a reference to the
udp socket, the destroy hook might be used to relinquish this reference.

This patch adds a socket destroy hook into udp, which is set and enabled
in the same way as the existing encap_rcv hook.

Signed-off-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20 12:10:38 -04:00