drm-intel-next-2014-01-10:
- final bits for runtime D3 on Haswell from Paul (now enabled fully)
- parse the backlight modulation freq information in the VBT from Jani
(but not yet used)
- more watermark improvements from Ville for ilk-ivb and bdw
- bugfixes for fastboot from Jesse
- watermark fix for i830M (but not yet everything)
- vlv vga hotplug w/a (Imre)
- piles of other small improvements, cleanups and fixes all over
Note that the pull request includes a backmerge of the last drm-fixes
pulled into Linus' tree - things where getting a bit too messy. So the
shortlog also contains a bunch of patches from Linus tree. Please yell if
you want me to frob it for you a bit.
* 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel: (609 commits)
drm/i915/bdw: make sure south port interrupts are enabled properly v2
drm/i915: Include more information in disabled hotplug interrupt warning
drm/i915: Only complain about a rogue hotplug IRQ after disabling
drm/i915: Only WARN about a stuck hotplug irq ONCE
drm/i915: s/hotplugt_status_gen4/hotplug_status_g4x/
* Several patches fixing up incorrectly defined register addresses and
bitfield offsets that could lead to undefined operation when accessing
respective registers or bitfields.
1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
2a) clk: samsung: exynos5250: Fix ACP gate register offset
2b) clk: samsung: exynos5250: Add MDMA0 clocks
2c) ARM: dts: exynos5250: Fix MDMA0 clock number
3) clk: samsung: exynos4: Correct SRC_MFC register
All three issues have been present since Exynos5250 and Exynos4 clock
drivers were added by commits 6e3ad26816 ("clk: exynos5250:
register clocks using common clock framework") and e062b57177
("clk: exynos4: register clocks using common clock framework")
respectively.
* Patch to fix automatic disabling of Exynos5250 sysreg clock that could
cause undefined operation of several peripherals, such as USB, I2C,
MIPI or display block.
4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
clock
Present since Exynos5250 clock drivers was added by commits
6e3ad26816 ("clk: exynos5250: register clocks using common clock
framework").
* Patch fixing compilation warning in clk-exynos-audss driver when
CONFIG_PM_SLEEP is disabled.
5) clk: exynos: File scope reg_save array should depend on PM_SLEEP
Present since the driver was added by commit 1241ef94cc ("clk:
samsung: register audio subsystem clocks using common clock
framework").
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=0B0x
-----END PGP SIGNATURE-----
Merge tag 'samsung-clk-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-fixes
Samsung Clock fixes for 3.13-rc7
* Several patches fixing up incorrectly defined register addresses and
bitfield offsets that could lead to undefined operation when accessing
respective registers or bitfields.
1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
2a) clk: samsung: exynos5250: Fix ACP gate register offset
2b) clk: samsung: exynos5250: Add MDMA0 clocks
2c) ARM: dts: exynos5250: Fix MDMA0 clock number
3) clk: samsung: exynos4: Correct SRC_MFC register
All three issues have been present since Exynos5250 and Exynos4 clock
drivers were added by commits 6e3ad26816 ("clk: exynos5250:
register clocks using common clock framework") and e062b57177
("clk: exynos4: register clocks using common clock framework")
respectively.
* Patch to fix automatic disabling of Exynos5250 sysreg clock that could
cause undefined operation of several peripherals, such as USB, I2C,
MIPI or display block.
4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
clock
Present since Exynos5250 clock drivers was added by commits
6e3ad26816 ("clk: exynos5250: register clocks using common clock
framework").
* Patch fixing compilation warning in clk-exynos-audss driver when
CONFIG_PM_SLEEP is disabled.
5) clk: exynos: File scope reg_save array should depend on PM_SLEEP
Present since the driver was added by commit 1241ef94cc ("clk:
samsung: register audio subsystem clocks using common clock
framework").
Adds gate clock for MDMA0 on Exynos5250 SoC. This is needed to ensure
that the clock is enabled when MDMA0 is used on systems on which
firmware gates the clockby default.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
[t.figa: Updated patch description.]
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Pull block fixes from Jens Axboe:
- fix for a memory leak on certain unplug events
- a collection of bcache fixes from Kent and Nicolas
- a few null_blk fixes and updates form Matias
- a marking of static of functions in the stec pci-e driver
* 'for-linus' of git://git.kernel.dk/linux-block:
null_blk: support submit_queues on use_per_node_hctx
null_blk: set use_per_node_hctx param to false
null_blk: corrections to documentation
null_blk: warning on ignored submit_queues param
null_blk: refactor init and init errors code paths
null_blk: documentation
null_blk: mem garbage on NUMA systems during init
drivers: block: Mark the functions as static in skd_main.c
bcache: New writeback PD controller
bcache: bugfix for race between moving_gc and bucket_invalidate
bcache: fix for gc and writeback race
bcache: bugfix - moving_gc now moves only correct buckets
bcache: fix for gc crashing when no sectors are used
bcache: Fix heap_peek() macro
bcache: Fix for can_attach_cache()
bcache: Fix dirty_data accounting
bcache: Use uninterruptible sleep in writeback
bcache: kthread don't set writeback task to INTERUPTIBLE
block: fix memory leaks on unplugging block device
bcache: fix sparse non static symbol warning
Pull libata fixes from Tejun Heo:
"There's one interseting commit - "libata, freezer: avoid block device
removal while system is frozen". It's an ugly hack working around a
deadlock condition between driver core resume and block layer device
removal paths through freezer which was made more reproducible by
writeback being converted to workqueue some releases ago. The bug has
nothing to do with libata but it's just an workaround which is easy to
backport. After discussion, Rafael and I seem to agree that we don't
really need kernel freezables - both kthread and workqueue. There are
few specific workqueues which constitute PM operations and require
freezing, which will be converted to use workqueue_set_max_active()
instead. All other kernel freezer uses are planned to be removed,
followed by the removal of kthread and workqueue freezer support,
hopefully.
Others are device-specific fixes. The most notable is the addition of
NO_NCQ_TRIM which is used to disable queued TRIM commands to Micro
M500 SSDs which otherwise suffers data corruption"
* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata, freezer: avoid block device removal while system is frozen
libata: implement ATA_HORKAGE_NO_NCQ_TRIM and apply it to Micro M500 SSDs
libata: disable a disk via libata.force params
ahci: bail out on ICH6 before using AHCI BAR
ahci: imx: Explicitly clear IMX6Q_GPR13_SATA_MPLL_CLK_EN
libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk for Seagate Momentus SpinPoint M8
The defaults for the module is to instantiate itself with blk-mq and a
submit queue for each CPU node in the system.
To save resources, initialize instead with a single submit queue.
Signed-off-by: Matias Bjorling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Randy Dunlap reported a couple of grammar errors and unfortunate usages of
socket/node/core.
Signed-off-by: Matias Bjorling <m@bjorling.me>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit adds support for both DSI outputs found on Tegra. Only very
minimal functionality is implemented, so advanced features like ganged
mode won't work.
Due to the lack of other test hardware, some sections of the driver are
hardcoded to work with Dalmore.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Pull crypto key patches from David Howells:
"There are four items:
- A patch to fix X.509 certificate gathering. The problem was that I
was coming up with a different path for signing_key.x509 in the
build directory if it didn't exist to if it did exist. This meant
that the X.509 cert container object file would be rebuilt on the
second rebuild in a build directory and the kernel would get
relinked.
- Unconditionally remove files generated by SYSTEM_TRUSTED_KEYRING=y
when doing make mrproper.
- Actually initialise the persistent-keyring semaphore for
init_user_ns. I have no idea why this works at all for users in
the base user namespace unless it's something to do with systemd
containerising the system.
- Documentation for module signing"
* 'keys-devel' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
Add Documentation/module-signing.txt file
KEYS: fix uninitialized persistent_keyring_register_sem
KEYS: Remove files generated when SYSTEM_TRUSTED_KEYRING=y
X.509: Fix certificate gathering
Introduce device tree bindings for the MIPI pad calibration controller
found on Tegra SoCs. The controller can be used to perform calibration
of pads used for DSI and CSI peripherals.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The display controller primary clock was recently renamed to "dc", so
update the example to reflect that.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Use the DRM panel framework to attach a panel to an output. If the panel
attached to a connector supports supports the backlight brightness
accessors, a property will be available to allow the brightness to be
modified from userspace.
Signed-off-by: Thierry Reding <treding@nvidia.com>
This binding specifies a set of common properties for display panels. It
can be used as a basis by bindings for specific panels.
Bindings for three specific panels are provided to show how the simple
panel binding can be used.
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Document the device tree bindings for the MIPI DSI bus. The MIPI Display
Serial Interface specifies a serial bus and a protocol for communication
between a host and up to four peripherals.
Signed-off-by: Thierry Reding <treding@nvidia.com>
This series converts the Tegra DTs and drivers to use the common/
standard DMA and reset bindings, rather than custom bindings. It also
adds complete documentation for the Tegra clock bindings without
actually changing any binding definitions.
This conversion relies on a few sets of patches in branches from outside
the Tegra tree:
1) A patch to add an DMA channel request API which allows deferred probe
to be implemented.
2) A patch to implement a common part of the of_xlate function for DMA
controllers.
3) Some ASoC patches (which in turn rely on (1) above), which support
deferred probe during DMA channel allocation.
4) The Tegra clock driver changes for 3.14.
Consequently, this branch is based on a merge of all of those external
branches.
In turn, this branch is or will be pulled into a few places that either
rely on features introduced here, or would otherwise conflict with the
patches:
a) Tegra's own for-3.14/powergate and for-4.14/dt branches, to avoid
conflicts.
b) The DRM tree, which introduces new code that relies on the reset
controller framework introduced in this branch, and to avoid
conflicts.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=8T7+
-----END PGP SIGNATURE-----
Merge tag 'tegra-for-3.14-dmas-resets-rework' into drm/for-next
ARM: tegra: implement common DMA and resets DT bindings
This series converts the Tegra DTs and drivers to use the common/
standard DMA and reset bindings, rather than custom bindings. It also
adds complete documentation for the Tegra clock bindings without
actually changing any binding definitions.
This conversion relies on a few sets of patches in branches from outside
the Tegra tree:
1) A patch to add an DMA channel request API which allows deferred probe
to be implemented.
2) A patch to implement a common part of the of_xlate function for DMA
controllers.
3) Some ASoC patches (which in turn rely on (1) above), which support
deferred probe during DMA channel allocation.
4) The Tegra clock driver changes for 3.14.
Consequently, this branch is based on a merge of all of those external
branches.
In turn, this branch is or will be pulled into a few places that either
rely on features introduced here, or would otherwise conflict with the
patches:
a) Tegra's own for-3.14/powergate and for-4.14/dt branches, to avoid
conflicts.
b) The DRM tree, which introduces new code that relies on the reset
controller framework introduced in this branch, and to avoid
conflicts.
Pull networking fixes from David Miller:
1) Revert CHECKSUM_COMPLETE optimization in pskb_trim_rcsum(), I can't
figure out why it breaks things.
2) Fix comparison in netfilter ipset's hash_netnet4_data_equal(), it
was basically doing "x == x", from Dave Jones.
3) Freescale FEC driver was DMA mapping the wrong number of bytes, from
Sebastian Siewior.
4) Blackhole and prohibit routes in ipv6 were not doing the right thing
because their ->input and ->output methods were not being assigned
correctly. Now they behave properly like their ipv4 counterparts.
From Kamala R.
5) Several drivers advertise the NETIF_F_FRAGLIST capability, but
really do not support this feature and will send garbage packets if
fed fraglist SKBs. From Eric Dumazet.
6) Fix long standing user triggerable BUG_ON over loopback in RDS
protocol stack, from Venkat Venkatsubra.
7) Several not so common code paths can potentially try to invoke
packet scheduler actions that might be NULL without checking. Shore
things up by either 1) defining a method as mandatory and erroring
on registration if that method is NULL 2) defininig a method as
optional and the registration function hooks up a default
implementation when NULL is seen. From Jamal Hadi Salim.
8) Fix fragment detection in xen-natback driver, from Paul Durrant.
9) Kill dangling enter_memory_pressure method in cg_proto ops, from
Eric W Biederman.
10) SKBs that traverse namespaces should have their local_df cleared,
from Hannes Frederic Sowa.
11) IOCB file position is not being updated by macvtap_aio_read() and
tun_chr_aio_read(). From Zhi Yong Wu.
12) Don't free virtio_net netdev before releasing all of the NAPI
instances. From Andrey Vagin.
13) Procfs entry leak in xt_hashlimit, from Sergey Popovich.
14) IPv6 routes that are no cached routes should not count against the
garbage collection limits. We had this almost right, but were
missing handling addrconf generated routes properly. From Hannes
Frederic Sowa.
15) fib{4,6}_rule_suppress() have to consider potentially seeing NULL
route info when they are called, from Stefan Tomanek.
16) TUN and MACVTAP have had truncated packet signalling for some time,
fix from Jason Wang.
17) Fix use after frrr in __udp4_lib_rcv(), from Eric Dumazet.
18) xen-netback does not interpret the NAPI budget properly for TX work,
fix from Paul Durrant.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits)
igb: Fix for issue where values could be too high for udelay function.
i40e: fix null dereference
xen-netback: fix gso_prefix check
net: make neigh_priv_len in struct net_device 16bit instead of 8bit
drivers: net: cpsw: fix for cpsw crash when build as modules
xen-netback: napi: don't prematurely request a tx event
xen-netback: napi: fix abuse of budget
sch_tbf: use do_div() for 64-bit divide
udp: ipv4: must add synchronization in udp_sk_rx_dst_set()
net:fec: remove duplicate lines in comment about errata ERR006358
Revert "8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature"
8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature
xen-netback: make sure skb linear area covers checksum field
net: smc91x: Fix device tree based configuration so it's usable
udp: ipv4: fix potential use after free in udp_v4_early_demux()
macvtap: signal truncated packets
tun: unbreak truncated packet signalling
net: sched: htb: fix the calculation of quantum
net: sched: tbf: fix the calculation of max_size
micrel: add support for KSZ8041RNLI
...
A fix for possible memory corruption during DM table load, fix a
possible leak of snapshot space in case of a crash, fix a possible
deadlock due to a shared workqueue in the delay target, fix to
initialize read-only module parameters that are used to export metrics
for dm stats and dm bufio.
Quite a few stable fixes were identified for both the thin-provisioning
and caching targets as a result of increased regression testing using
the device-mapper-test-suite (dmts). The most notable of these are the
reference counting fixes for the space map btree that is used by the
dm-array interface -- without these the dm-cache metadata will leak,
resulting in dm-cache devices running out of metadata blocks. Also,
some important fixes related to the thin-provisioning target's
transition to read-only mode on error.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)
iQEcBAABAgAGBQJSq2pVAAoJEMUj8QotnQNaAzEH/0qpz06SVd3+oTbsWeWxXwax
B0zIZ4HPnaD9FDfSWN+6IdQ6Rkn51cspMBHPxWX0I8pmqOTg7MUM7wbaZZaKT3UW
aDlibzG1O3zBGbkr+Qhbh89fJK5/3xnZXlK0hOyaNI2vz1rA6RThZ2hIeak9xQYr
7USz2bjSMXchwebb0Z01CrRnOkhUFg6yUJURIEu4XFCJmDM/PM9zKogLGYKuZedK
pZePnZhwgkLMn7f9l4lPHk3EcWeD4Nf9WR0lS4eKdbYsvMxm1QE7BpDlVJD0Asjg
/SVOVkgygW18TINMHuw1K0DPdSCo5UZF2HRj1QUD/X4N2BSkio+E1qwF6kT4ltk=
=0Ix+
-----END PGP SIGNATURE-----
Merge tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"A set of device-mapper fixes for 3.13.
A fix for possible memory corruption during DM table load, fix a
possible leak of snapshot space in case of a crash, fix a possible
deadlock due to a shared workqueue in the delay target, fix to
initialize read-only module parameters that are used to export metrics
for dm stats and dm bufio.
Quite a few stable fixes were identified for both the thin-
provisioning and caching targets as a result of increased regression
testing using the device-mapper-test-suite (dmts). The most notable
of these are the reference counting fixes for the space map btree that
is used by the dm-array interface -- without these the dm-cache
metadata will leak, resulting in dm-cache devices running out of
metadata blocks. Also, some important fixes related to the
thin-provisioning target's transition to read-only mode on error"
* tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm array: fix a reference counting bug in shadow_ablock
dm space map: disallow decrementing a reference count below zero
dm stats: initialize read-only module parameter
dm bufio: initialize read-only module parameters
dm cache: actually resize cache
dm cache: update Documentation for invalidate_cblocks's range syntax
dm cache policy mq: fix promotions to occur as expected
dm thin: allow pool in read-only mode to transition to read-write mode
dm thin: re-establish read-only state when switching to fail mode
dm thin: always fallback the pool mode if commit fails
dm thin: switch to read-only mode if metadata space is exhausted
dm thin: switch to read only mode if a mapping insert fails
dm space map metadata: return on failure in sm_metadata_new_block
dm table: fail dm_table_create on dm_round_up overflow
dm snapshot: avoid snapshot space leak on crash
dm delay: fix a possible deadlock due to shared workqueue
This patch adds the Documentation/module-signing.txt file that is
currently missing from the Documentation directory. The init/Kconfig
file references the Documentation/module-signing.txt file to explain
how kernel module signing works. This patch supplies this documentation.
Signed-off-by: James Solner <solner@alcatel-lucent.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tegra124 adds a number of extra modules into the configlink bus, which
must be taken out of reset before the bus is used. Update the AHUB
driver to know about these extra modules (the AHUB HW module hosts the
configlink bus).
Based-on-work-by: Arun Shamanna Lakshmi <aruns@nvidia.com>
Based-on-work-by: Songhee Baek <sbaek@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Mark Brown <broonie@linaro.org>
---
This patch depends on "ASoC: tegra: use reset framework" to compile,
which is ack'd and slated to go through a (large) topic branch in the
Tegra tree. So, we can either:
a) Merge that Tegra topic branch into the ASoC tree, then apply this.
Note that I haven't created the topic branch yet, since I'm still
waiting for DMA dependencies to be applied.
b) Apply this change to the Tegra tree too. This change isn't directly
related to the changes in the Tegra tree; it just makes use of the new
reset controller feature that's introduced there.
Pull media fixes from Mauro Carvalho Chehab:
"A dvb core deadlock fix, a couple videobuf2 fixes an a series of media
driver fixes"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (30 commits)
[media] videobuf2-dma-sg: fix possible memory leak
[media] vb2: regression fix: always set length field.
[media] mt9p031: Include linux/of.h header
[media] rtl2830: add parent for I2C adapter
[media] media: marvell-ccic: use devm to release clk
[media] ths7303: Declare as static a private function
[media] em28xx-video: Swap release order to avoid lock nesting
[media] usbtv: Add support for PAL video source
[media] media_tree: Fix spelling errors
[media] videobuf2: Add support for file access mode flags for DMABUF exporting
[media] radio-shark2: Mark shark_resume_leds() inline to kill compiler warning
[media] radio-shark: Mark shark_resume_leds() inline to kill compiler warning
[media] af9035: unlock on error in af9035_i2c_master_xfer()
[media] af9033: fix broken I2C
[media] v4l: omap3isp: Don't check for missing get_fmt op on remote subdev
[media] af9035: fix broken I2C and USB I/O
[media] wm8775: fix broken audio routing
[media] marvell-ccic: drop resource free in driver remove
[media] tef6862/radio-tea5764: actually assign clamp result
[media] cx231xx: use after free on error path in probe
...
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)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=/AdA
-----END PGP SIGNATURE-----
Merge tag 'keys-devel-20131210' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull misc keyrings fixes from David Howells:
"These break down into five sets:
- A patch to error handling in the big_key type for huge payloads.
If the payload is larger than the "low limit" and the backing store
allocation fails, then big_key_instantiate() doesn't clear the
payload pointers in the key, assuming them to have been previously
cleared - but only one of them is.
Unfortunately, the garbage collector still calls big_key_destroy()
when sees one of the pointers with a weird value in it (and not
NULL) which it then tries to clean up.
- Three patches to fix the keyring type:
* A patch to fix the hash function to correctly divide keyrings off
from keys in the topology of the tree inside the associative
array. This is only a problem if searching through nested
keyrings - and only if the hash function incorrectly puts the a
keyring outside of the 0 branch of the root node.
* A patch to fix keyrings' use of the associative array. The
__key_link_begin() function initially passes a NULL key pointer
to assoc_array_insert() on the basis that it's holding a place in
the tree whilst it does more allocation and stuff.
This is only a problem when a node contains 16 keys that match at
that level and we want to add an also matching 17th. This should
easily be manufactured with a keyring full of keyrings (without
chucking any other sort of key into the mix) - except for (a)
above which makes it on average adding the 65th keyring.
* A patch to fix searching down through nested keyrings, where any
keyring in the set has more than 16 keyrings and none of the
first keyrings we look through has a match (before the tree
iteration needs to step to a more distal node).
Test in keyutils test suite:
http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?id=8b4ae963ed92523aea18dfbb8cab3f4979e13bd1
- A patch to fix the big_key type's use of a shmem file as its
backing store causing audit messages and LSM check failures. This
is done by setting S_PRIVATE on the file to avoid LSM checks on the
file (access to the shmem file goes through the keyctl() interface
and so is gated by the LSM that way).
This isn't normally a problem if a key is used by the context that
generated it - and it's currently only used by libkrb5.
Test in keyutils test suite:
http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?id=d9a53cbab42c293962f2f78f7190253fc73bd32e
- A patch to add a generated file to .gitignore.
- A patch to fix the alignment of the system certificate data such
that it it works on s390. As I understand it, on the S390 arch,
symbols must be 2-byte aligned because loading the address discards
the least-significant bit"
* tag 'keys-devel-20131210' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
KEYS: correct alignment of system_certificate_list content in assembly file
Ignore generated file kernel/x509_certificate_list
security: shmem: implement kernel private shmem inodes
KEYS: Fix searching of nested keyrings
KEYS: Fix multiple key add into associative array
KEYS: Fix the keyring hash function
KEYS: Pre-clear struct key on allocation
Update all the Tegra DT bindings to require the standard dmas/dma-names
properties rather than non-standard nvidia,dma-request-selector property.
This is a DT-ABI-incompatible change. It is the second of two changes
required for me to consider the Tegra DT bindings as stable, the other
being the previous conversion to the common reset bindings.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Update all the Tegra DT bindings to require resets/reset-names properties
where the HW module has reset inputs. Remove any entries from clocks or
clock-names that were only required to identify reset inputs, rather than
referring to real clocks.
This is a DT-ABI-incompatible change. It is the first of two changes
required for me to consider the Tegra DT bindings as stable, the other
being conversion to the common DMA DT bindings.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Many of the Tegra DT binding documents say nothing about the clocks or
clock-names properties, yet those are present and required in DT files.
This patch simply updates the documentation file to match the implicit
definition of the binding, based on real-world DT content.
All Tegra bindings that mention clocks are updated to have consistent
wording and formatting of the clock-related properties.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Commit 89ce376c6b (drivers/net: Use of_match_ptr() macro in smc91x.c)
added minimal device tree support to smc91x, but it's not working on
many platforms because of the lack of some key configuration bits.
Fix the issue by parsing the necessary configuration like the
smc911x driver is doing. As most smc91x users seem to use 16-bit
access, let's default to that if no reg-io-width is specified.
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: netdev@vger.kernel.org
Cc: devicetree@vger.kernel.org
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The cache target's invalidate_cblocks message allows cache block
(cblock) ranges to be expressed with: <cblock start>-<cblock end>
The range's <cblock end> value is "one past the end", so the range
includes <cblock start> through <cblock end>-1.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Commit e40526cb20 introduced a cached dev pointer, that gets
hooked into register_prot_hook(), __unregister_prot_hook() to
update the device used for the send path.
We need to fix this up, as otherwise this will not work with
sockets created with protocol = 0, plus with sll_protocol = 0
passed via sockaddr_ll when doing the bind.
So instead, assign the pointer directly. The compiler can inline
these helper functions automagically.
While at it, also assume the cached dev fast-path as likely(),
and document this variant of socket creation as it seems it is
not widely used (seems not even the author of TX_RING was aware
of that in his reference example [1]). Tested with reproducer
from e40526cb20.
[1] http://wiki.ipxwarzone.com/index.php5?title=Linux_packet_mmap#Example
Fixes: e40526cb20 ("packet: fix use after free race in send path when dev is released")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Tested-by: Salam Noureddine <noureddine@aristanetworks.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently it is not possible for userspace to map a DMABUF exported buffer
with write permissions. This patch allows to also pass O_RDONLY/O_RDWR when
exporting the buffer, so that userspace may map it with write permissions.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Nothing huge, just a few small bugfixes for problems reported, and a device id
update.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iEYEABECAAYFAlKiE8QACgkQMUfUDdst+yl9dQCgwXrgSRyBlULDHOdBnKblqrMq
gYQAoLVKfuEOXRXBJOD4CzNeCMLButsM
=HbWB
-----END PGP SIGNATURE-----
Merge tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Nothing huge, just a few small bugfixes for problems reported, and a
device id update"
* tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: add 9 series PCH mei device ids
drivers/char/i8k.c: add Dell XPLS L421X
MAINTAINERS: add HSI subsystem
misc: mic: Suppress memory space sparse warnings
misc: mic: Fix endianness issues.
misc: mic: Fix user space namespace pollution from mic_common.h.
misc: mic: Bug fix for sysfs poll usage.
misc: mic: Minor bug fix in 'retry' loops.
misc: mic: Change mic_notify(...) to return true.
extcon: remove freed groups caused the panic or warning in unregister flow
extcon: arizona: Get pdata from arizona structure not device
When booted with device tree, we may still have platform data passed
as auxdata. For am3517 this is needed for passing the interrupt_enable
and interrupt_disable callbacks that access the omap system control module
registers. These callback functions will eventually go away when we have
a separate system control module driver.
Some of the things that are currently passed as platform data we don't need
to set up as device tree properties as they are always the same on am3517.
So let's use a new compatible flag for those so we can get those from
the device tree match data.
Also note that we need to fix setting of phy_dev to NULL instead of an empty
string as the code later on uses that to find the first phy on the mdio bus.
This seems to have been caused by 5d69e0076a (net: davinci_emac: switch to
new mdio).
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix compile warnings.
- Fix overly talkative diagnostic messages from usual use
cases wrt GPIO descriptors.
- Add a documentation 00-INDEX
- Use platform GPIOs as fallback when ACPI or device tree is
used as the primary means to get GPIO lines.
- A bug fix for the MPC8572/MPC8536 fixing erroneous input data.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)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=PJQJ
-----END PGP SIGNATURE-----
Merge tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here are a few more GPIO patches, we're a bit noisy for being the GPIO
subsystem, mostly due to the new descriptor API, but all is getting
into shape.
- Fix compile warnings
- Fix overly talkative diagnostic messages from usual use cases wrt
GPIO descriptors
- Add a documentation 00-INDEX
- Use platform GPIOs as fallback when ACPI or device tree is used as
the primary means to get GPIO lines
- A bug fix for the MPC8572/MPC8536 fixing erroneous input data"
* tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpiolib: change a warning to debug message when failing to get gpio
powerpc/gpio: Fix the wrong GPIO input data on MPC8572/MPC8536
gpiolib: use platform GPIO mappings as fallback
Documentation: gpiolib: add 00-INDEX file
gpiolib: fix lookup of platform-mapped GPIOs
gpiolib: add missing declarations
Another batch of fixes for ARM SoCs for 3.13. The diffstat is large,
mostly because of:
- Another set of fixes to fix regressions caused by moving OMAP from board
files to DT. Tony thinks this was the last major set of fixes, with
maybe just a few small patches to follow.
- More fixes for Marvell platforms, most dealing with misdescribed PCIe
hardware, i.e. incorrect number of busses on some SoCs, etc. The line
delta adds up due to various ranges moving around when this is fixed.
But there's also:
- Some smaller tweaks to defconfigs to make more boards bootable in my
test setup for better coverage.
- There are also a few other smaller fixes, a short series for at91, a couple
of reverts for ux500, etc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=PljB
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another batch of fixes for ARM SoCs for 3.13. The diffstat is large,
mostly because of:
- Another set of fixes to fix regressions caused by moving OMAP from
board files to DT. Tony thinks this was the last major set of
fixes, with maybe just a few small patches to follow.
- More fixes for Marvell platforms, most dealing with misdescribed
PCIe hardware, i.e. incorrect number of busses on some SoCs, etc.
The line delta adds up due to various ranges moving around when
this is fixed.
But there's also:
- Some smaller tweaks to defconfigs to make more boards bootable in
my test setup for better coverage.
- There are also a few other smaller fixes, a short series for at91,
a couple of reverts for ux500, etc"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
arm: dts: socfpga: Change some clocks of gate-clk type to perip-clk
arm: socfpga: Enable ARM_TWD for socfpga
ARM: multi_v7_defconfig: enable SDHCI_BCM_KONA and MMC_BLOCK_MINORS=16
ARM: sunxi_defconfig: enable NFS, TMPFS, PRINTK_TIME and nfsroot support
ARM: multi_v7_defconfig: enable network for BeagleBone Black
ARM: dts: Fix the name of supplies for smsc911x shared by OMAP
ARM: OMAP2+: Powerdomain: Fix unchecked dereference of arch_pwrdm
ARM: dts: omap3-beagle: Add omap-twl4030 audio support
ARM: dts: omap4-sdp: Fix pin muxing for wl12xx
ARM: dts: omap4-panda-common: Fix pin muxing for wl12xx
ARM: at91: fixed unresolved symbol "at91_pm_set_standby" when built without CONFIG_PM
ARM: at91: add usart3 alias to dtsi
ARM: at91: sama5d3: reduce TWI internal clock frequency
mmc: omap: Fix I2C dependency and make driver usable with device tree
mmc: omap: Fix DMA configuration to not rely on device id
ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)
ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi
ARM: dts: AM33XX IGEP0033: add USB support
ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support
ARM: dts: AM33XX BASE0033: add pinmux and user led support
...
From Tony Lindgren:
Some omap related fixes that have come up with people moving to device
tree only based booting for omap2+.
The series contains a handful of fixes for the igep boards as they were
one of the first omap3 boards to jump over completely to device tree
based booting. So these can be considered regressions compared to
booting igep in legacy mode with board files in v3.12.
Also included are few other device tree vs legacy booting regressions:
- yet more missing omap3 .dtsi entries that have showed up booting
various boards with device tree only
- n900 eMMC device tree fix
- fixes for beagle USB EHCI
- two fixes to make omap2420 MMC work
As we're moving omap2+ to be device tree only for v3.14, I'd like to
have v3.13 work equally well for legacy based booting and device tree
based booting. So there will be likely few more device tree related
booting patches trickling in.
This series also includes a regression fix for the omap timer posted
mode that may wrongly stay on from the bootloader for some SoCs.
* tag 'omap-for-v3.13/fixes-against-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
mmc: omap: Fix I2C dependency and make driver usable with device tree
mmc: omap: Fix DMA configuration to not rely on device id
ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)
ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi
ARM: dts: AM33XX IGEP0033: add USB support
ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support
ARM: dts: AM33XX BASE0033: add pinmux and user led support
ARM: dts: AM33XX BASE0033: add pinmux and hdmi node to enable display
ARM: dts: omap3-igep0020: Add pinmuxing for DVI output
ARM: dts: omap3-igep0020: Add pinmux setup for i2c devices
ARM: dts: omap3-igep: Update to use the TI AM/DM37x processor
ARM: dts: omap3-igep: Add support for LBEE1USJYC WiFi connected to SDIO
ARM: dts: omap3-igep: Fix bus-width for mmc1
ARM: OMAP2+: dss-common: change IGEP's DVI DDC i2c bus
ARM: OMAP2+: Disable POSTED mode for errata i103 and i767
ARM: OMAP2+: Fix eMMC on n900 with device tree
ARM: OMAP2+: Add fixed regulator to omap2plus_defconfig
ARM: OMAP2+: Fix more missing data for omap3.dtsi file
Signed-off-by: Olof Johansson <olof@lixom.net>
Give a short overview of the various GPIO documentation files.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
re-format and re-word the device tree binding documentation for MPC8xxx
and compatibles, reference the common document for interrupt controllers
and remove outdated duplicate SoC specific information
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <Pawel.Moll@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <devicetree@vger.kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This binding shouldn't exist; Tegra20 has two forms of SPI controller
that are documented separately in nvidia,tegra20-sflash.txt and
nvidia,tegra20-slink.txt.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This patch fix typo of property name from 'pullup-uV' to 'pullup-uv'.
The ntc_thermistor.c use 'pullup-uv' when parsing dt data.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Adding Global Mixed-mode Technology Inc. to the list
of devicetree vendor prefixes.
Signed-off-by: Wei Ni <wni@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
phy-supply is an optional property of the fec driver, so add it to the binding
documentation.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
The binding and support for omap5-mpu which has a cortex-a15
smp core, gic and integrated L2 cache has been existing for sometime.
So Documenting the missing binding here.
Cc: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
If sufficient keys (or keyrings) are added into a keyring such that a node in
the associative array's tree overflows (each node has a capacity N, currently
16) and such that all N+1 keys have the same index key segment for that level
of the tree (the level'th nibble of the index key), then assoc_array_insert()
calls ops->diff_objects() to indicate at which bit position the two index keys
vary.
However, __key_link_begin() passes a NULL object to assoc_array_insert() with
the intention of supplying the correct pointer later before we commit the
change. This means that keyring_diff_objects() is given a NULL pointer as one
of its arguments which it does not expect. This results in an oops like the
attached.
With the previous patch to fix the keyring hash function, this can be forced
much more easily by creating a keyring and only adding keyrings to it. Add any
other sort of key and a different insertion path is taken - all 16+1 objects
must want to cluster in the same node slot.
This can be tested by:
r=`keyctl newring sandbox @s`
for ((i=0; i<=16; i++)); do keyctl newring ring$i $r; done
This should work fine, but oopses when the 17th keyring is added.
Since ops->diff_objects() is always called with the first pointer pointing to
the object to be inserted (ie. the NULL pointer), we can fix the problem by
changing the to-be-inserted object pointer to point to the index key passed
into assoc_array_insert() instead.
Whilst we're at it, we also switch the arguments so that they are the same as
for ->compare_object().
BUG: unable to handle kernel NULL pointer dereference at 0000000000000088
IP: [<ffffffff81191ee4>] hash_key_type_and_desc+0x18/0xb0
...
RIP: 0010:[<ffffffff81191ee4>] hash_key_type_and_desc+0x18/0xb0
...
Call Trace:
[<ffffffff81191f9d>] keyring_diff_objects+0x21/0xd2
[<ffffffff811f09ef>] assoc_array_insert+0x3b6/0x908
[<ffffffff811929a7>] __key_link_begin+0x78/0xe5
[<ffffffff81191a2e>] key_create_or_update+0x17d/0x36a
[<ffffffff81192e0a>] SyS_add_key+0x123/0x183
[<ffffffff81400ddb>] tracesys+0xdd/0xe2
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Stephen Gallagher <sgallagh@redhat.com>
- A big slew of documentation for the gpiod transition that
happened in the merge window, no semantic effect, but we should
provide proper documentation with the new API.
- Fix flags related to the new API.
- Fix to the find_chip_by_name() lookup function related to the
new API.
- Fix of_find_gpio() when not using device tree.
- Bug fix for the TB10x direction setting.
- Error path fixes from Dan Carpenter.
- Nasty IRQdomain bug relating to taking an unitialized spinlock.
- Minor fixes here and there.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)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=GmyD
-----END PGP SIGNATURE-----
Merge tag 'gpio-v3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here us a bunch of patches for the v3.13 series. Most important stuff
is related to fixes and documentation for the new GPIO descriptor API.
If the diffstat is scary you'll notice most of it is to
Documentation/*:
- A big slew of documentation for the gpiod transition that happened
in the merge window, no semantic effect, but we should provide
proper documentation with the new API.
- Fix flags related to the new API.
- Fix to the find_chip_by_name() lookup function related to the new
API.
- Fix of_find_gpio() when not using device tree.
- Bug fix for the TB10x direction setting.
- Error path fixes from Dan Carpenter.
- Nasty IRQdomain bug relating to taking an unitialized spinlock.
- Minor fixes here and there"
* tag 'gpio-v3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: bcm281xx: Fix return value of bcm_kona_gpio_get()
gpio: pl061: move irqdomain initialization
gpio: ucb1400: Add MODULE_ALIAS
gpiolib: fix of_find_gpio() when OF not defined
gpio: fix memory leak in error path
gpio: rcar: NULL dereference on error in probe()
gpio: msm: make msm_gpio.summary_irq signed for error handling
gpio: mvebu: make mvchip->irqbase signed for error handling
gpiolib: use dedicated flags for GPIO properties
gpiolib: fix find_chip_by_name()
Documentation: gpiolib: document new interface
gpio: tb10x: Set output value before setting direction to output
